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1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
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2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
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3 | |
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4 | #define NDEBUG 1 /* perl usually disables NDEBUG later */ |
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5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
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9 | #define PERL_EXT |
4 | |
10 | |
5 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
6 | #include "perl.h" |
12 | #include "perl.h" |
7 | #include "XSUB.h" |
13 | #include "XSUB.h" |
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14 | #include "perliol.h" |
8 | |
15 | |
9 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
10 | |
17 | |
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18 | #define ECB_NO_THREADS 1 |
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19 | #define ECB_NO_LIBM 1 |
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20 | #include "ecb.h" |
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21 | |
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22 | #include <stddef.h> |
11 | #include <stdio.h> |
23 | #include <stdio.h> |
12 | #include <errno.h> |
24 | #include <errno.h> |
13 | #include <assert.h> |
25 | #include <assert.h> |
14 | |
26 | |
15 | #ifdef HAVE_MMAP |
27 | #ifndef SvREFCNT_dec_NN |
16 | # include <unistd.h> |
28 | #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
17 | # include <sys/mman.h> |
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18 | # ifndef MAP_ANONYMOUS |
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19 | # ifdef MAP_ANON |
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20 | # define MAP_ANONYMOUS MAP_ANON |
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21 | # else |
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22 | # undef HAVE_MMAP |
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23 | # endif |
29 | #endif |
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30 | |
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31 | #ifndef SvREFCNT_inc_NN |
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32 | #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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33 | #endif |
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34 | |
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35 | #ifndef SVs_PADSTALE |
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36 | # define SVs_PADSTALE 0 |
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37 | #endif |
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38 | |
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39 | #ifdef PadARRAY |
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40 | # define NEWPADAPI 1 |
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41 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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42 | #else |
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43 | typedef AV PADNAMELIST; |
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44 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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45 | typedef AV PADLIST; |
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46 | typedef AV PAD; |
24 | # endif |
47 | # endif |
25 | # include <limits.h> |
48 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
26 | # ifndef PAGESIZE |
49 | # define PadlistMAX(pl) AvFILLp (pl) |
27 | # define PAGESIZE pagesize |
50 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
28 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
51 | # define PadARRAY AvARRAY |
29 | static long pagesize; |
52 | # define PadMAX AvFILLp |
30 | # else |
53 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
31 | # define BOOT_PAGESIZE (void)0 |
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32 | # endif |
54 | #endif |
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55 | #ifndef PadnamelistREFCNT |
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56 | # define PadnamelistREFCNT(pnl) SvREFCNT (pnl) |
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57 | #endif |
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58 | #ifndef PadnamelistREFCNT_dec |
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59 | # define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl) |
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60 | #endif |
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61 | |
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62 | /* 5.19.something has replaced SVt_BIND by SVt_INVLIST */ |
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63 | /* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */ |
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64 | #if PERL_VERSION_ATLEAST(5,19,0) |
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65 | # define SVt_BIND SVt_IV |
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66 | #endif |
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67 | |
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68 | #if defined(_WIN32) |
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69 | # undef HAS_GETTIMEOFDAY |
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70 | # undef setjmp |
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71 | # undef longjmp |
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72 | # undef _exit |
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73 | # define setjmp _setjmp /* deep magic */ |
33 | #else |
74 | #else |
34 | # define PAGESIZE 0 |
75 | # include <inttypes.h> /* most portable stdint.h */ |
35 | # define BOOT_PAGESIZE (void)0 |
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36 | #endif |
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37 | |
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38 | #if CORO_USE_VALGRIND |
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39 | # include <valgrind/valgrind.h> |
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40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
76 | #endif |
44 | |
77 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
78 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
79 | static int cctx_max_idle = 4; |
47 | |
80 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
81 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
49 | (PERL_REVISION > (a) \ |
82 | # define HAS_SCOPESTACK_NAME 1 |
50 | || (PERL_REVISION == (a) \ |
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51 | && (PERL_VERSION > (b) \ |
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52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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53 | |
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54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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55 | # ifndef PL_ppaddr |
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56 | # define PL_ppaddr ppaddr |
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57 | # endif |
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58 | # ifndef call_sv |
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59 | # define call_sv perl_call_sv |
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60 | # endif |
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61 | # ifndef get_sv |
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62 | # define get_sv perl_get_sv |
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63 | # endif |
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64 | # ifndef get_cv |
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65 | # define get_cv perl_get_cv |
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66 | # endif |
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67 | # ifndef IS_PADGV |
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68 | # define IS_PADGV(v) 0 |
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69 | # endif |
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70 | # ifndef IS_PADCONST |
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71 | # define IS_PADCONST(v) 0 |
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72 | # endif |
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73 | #endif |
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74 | |
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75 | /* 5.8.7 */ |
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76 | #ifndef SvRV_set |
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77 | # define SvRV_set(s,v) SvRV(s) = (v) |
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78 | #endif |
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79 | |
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80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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81 | # undef CORO_STACKGUARD |
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82 | #endif |
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83 | |
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84 | #ifndef CORO_STACKGUARD |
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85 | # define CORO_STACKGUARD 0 |
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86 | #endif |
83 | #endif |
87 | |
84 | |
88 | /* prefer perl internal functions over our own? */ |
85 | /* prefer perl internal functions over our own? */ |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
86 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
87 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
88 | #endif |
92 | |
89 | |
93 | /* The next macro should declare a variable stacklevel that contains and approximation |
90 | /* The next macros try to return the current stack pointer, in an as |
94 | * to the current C stack pointer. Its property is that it changes with each call |
91 | * portable way as possible. */ |
95 | * and should be unique. */ |
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96 | #define dSTACKLEVEL int stacklevel |
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97 | #define STACKLEVEL ((void *)&stacklevel) |
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98 | |
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99 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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100 | |
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101 | #if __GNUC__ >= 3 |
92 | #if __GNUC__ >= 4 |
102 | # define attribute(x) __attribute__(x) |
93 | # define dSTACKLEVEL int stacklevel_dummy |
103 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
94 | # define STACKLEVEL __builtin_frame_address (0) |
104 | #else |
95 | #else |
105 | # define attribute(x) |
96 | # define dSTACKLEVEL volatile void *stacklevel |
106 | # define BARRIER |
97 | # define STACKLEVEL ((void *)&stacklevel) |
107 | #endif |
98 | #endif |
108 | |
99 | |
109 | #define NOINLINE attribute ((noinline)) |
100 | #define IN_DESTRUCT PL_dirty |
110 | |
101 | |
111 | #include "CoroAPI.h" |
102 | #include "CoroAPI.h" |
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103 | #define GCoroAPI (&coroapi) /* very sneaky */ |
112 | |
104 | |
113 | #ifdef USE_ITHREADS |
105 | #ifdef USE_ITHREADS |
114 | static perl_mutex coro_mutex; |
106 | # if CORO_PTHREAD |
115 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
107 | static void *coro_thx; |
116 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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117 | #else |
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118 | # define LOCK (void)0 |
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119 | # define UNLOCK (void)0 |
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120 | #endif |
108 | # endif |
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109 | #endif |
121 | |
110 | |
122 | /* helper storage struct for Coro::AIO */ |
111 | #ifdef __linux |
123 | struct io_state |
112 | # include <time.h> /* for timespec */ |
124 | { |
113 | # include <syscall.h> /* for SYS_* */ |
125 | int errorno; |
114 | # ifdef SYS_clock_gettime |
126 | I32 laststype; |
115 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
127 | int laststatval; |
116 | # define CORO_CLOCK_MONOTONIC 1 |
128 | Stat_t statcache; |
117 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
129 | }; |
118 | # endif |
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119 | #endif |
130 | |
120 | |
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121 | /* perl usually suppressed asserts. for debugging, we sometimes force it to be on */ |
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122 | #if 0 |
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123 | # undef NDEBUG |
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124 | # include <assert.h> |
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125 | #endif |
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126 | |
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127 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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128 | static void (*u2time)(pTHX_ UV ret[2]); |
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129 | |
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130 | /* we hijack an hopefully unused CV flag for our purposes */ |
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131 | #define CVf_SLF 0x4000 |
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132 | static OP *pp_slf (pTHX); |
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133 | static void slf_destroy (pTHX_ struct coro *coro); |
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134 | |
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135 | static U32 cctx_gen; |
131 | static size_t coro_stacksize = CORO_STACKSIZE; |
136 | static size_t cctx_stacksize = CORO_STACKSIZE; |
132 | static struct CoroAPI coroapi; |
137 | static struct CoroAPI coroapi; |
133 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
138 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
134 | static JMPENV *main_top_env; |
139 | static JMPENV *main_top_env; |
135 | static HV *coro_state_stash, *coro_stash; |
140 | static HV *coro_state_stash, *coro_stash; |
136 | static SV *coro_mortal; /* will be freed after next transfer */ |
141 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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142 | |
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143 | static AV *av_destroy; /* destruction queue */ |
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144 | static SV *sv_manager; /* the manager coro */ |
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145 | static SV *sv_idle; /* $Coro::idle */ |
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146 | |
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147 | static GV *irsgv; /* $/ */ |
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148 | static GV *stdoutgv; /* *STDOUT */ |
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149 | static SV *rv_diehook; |
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150 | static SV *rv_warnhook; |
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151 | |
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152 | /* async_pool helper stuff */ |
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153 | static SV *sv_pool_rss; |
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154 | static SV *sv_pool_size; |
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155 | static SV *sv_async_pool_idle; /* description string */ |
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156 | static AV *av_async_pool; /* idle pool */ |
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157 | static SV *sv_Coro; /* class string */ |
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158 | static CV *cv_pool_handler; |
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159 | |
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160 | /* Coro::AnyEvent */ |
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161 | static SV *sv_activity; |
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162 | |
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163 | /* enable processtime/realtime profiling */ |
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164 | static char enable_times; |
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165 | typedef U32 coro_ts[2]; |
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166 | static coro_ts time_real, time_cpu; |
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167 | static char times_valid; |
137 | |
168 | |
138 | static struct coro_cctx *cctx_first; |
169 | static struct coro_cctx *cctx_first; |
139 | static int cctx_count, cctx_idle; |
170 | static int cctx_count, cctx_idle; |
140 | |
171 | |
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172 | enum |
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173 | { |
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174 | CC_MAPPED = 0x01, |
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175 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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176 | CC_TRACE = 0x04, |
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177 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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178 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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179 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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180 | }; |
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181 | |
141 | /* this is a structure representing a c-level coroutine */ |
182 | /* this is a structure representing a c-level coroutine */ |
142 | typedef struct coro_cctx { |
183 | typedef struct coro_cctx |
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184 | { |
143 | struct coro_cctx *next; |
185 | struct coro_cctx *next; |
144 | |
186 | |
145 | /* the stack */ |
187 | /* the stack */ |
146 | void *sptr; |
188 | struct coro_stack stack; |
147 | size_t ssize; |
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148 | |
189 | |
149 | /* cpu state */ |
190 | /* cpu state */ |
150 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
191 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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192 | #ifndef NDEBUG |
151 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
193 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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194 | #endif |
152 | JMPENV *top_env; |
195 | JMPENV *top_env; |
153 | coro_context cctx; |
196 | coro_context cctx; |
154 | |
197 | |
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198 | U32 gen; |
155 | #if CORO_USE_VALGRIND |
199 | #if CORO_USE_VALGRIND |
156 | int valgrind_id; |
200 | int valgrind_id; |
157 | #endif |
201 | #endif |
158 | char inuse, mapped; |
202 | unsigned char flags; |
159 | } coro_cctx; |
203 | } coro_cctx; |
160 | |
204 | |
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205 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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206 | |
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207 | /*****************************************************************************/ |
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208 | |
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209 | static MGVTBL coro_state_vtbl; |
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210 | |
161 | enum { |
211 | enum |
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212 | { |
162 | CF_RUNNING = 0x0001, /* coroutine is running */ |
213 | CF_RUNNING = 0x0001, /* coroutine is running */ |
163 | CF_READY = 0x0002, /* coroutine is ready */ |
214 | CF_READY = 0x0002, /* coroutine is ready */ |
164 | CF_NEW = 0x0004, /* has never been switched to */ |
215 | CF_NEW = 0x0004, /* has never been switched to */ |
165 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
216 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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217 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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218 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
166 | }; |
219 | }; |
167 | |
220 | |
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221 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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222 | typedef struct |
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223 | { |
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224 | #define VARx(name,expr,type) type name; |
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225 | #include "state.h" |
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226 | } perl_slots; |
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227 | |
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228 | /* how many context stack entries do we need for perl_slots */ |
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229 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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230 | |
168 | /* this is a structure representing a perl-level coroutine */ |
231 | /* this is a structure representing a perl-level coroutine */ |
169 | struct coro { |
232 | struct coro |
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233 | { |
170 | /* the c coroutine allocated to this perl coroutine, if any */ |
234 | /* the C coroutine allocated to this perl coroutine, if any */ |
171 | coro_cctx *cctx; |
235 | coro_cctx *cctx; |
172 | |
236 | |
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237 | /* ready queue */ |
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238 | struct coro *next_ready; |
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239 | |
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240 | /* state data */ |
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241 | struct CoroSLF slf_frame; /* saved slf frame */ |
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242 | AV *mainstack; |
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243 | perl_slots *slot; /* basically the saved sp */ |
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244 | |
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245 | CV *startcv; /* the CV to execute */ |
173 | /* data associated with this coroutine (initial args) */ |
246 | AV *args; /* data associated with this coroutine (initial args) */ |
174 | AV *args; |
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175 | int refcnt; |
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176 | int save; /* CORO_SAVE flags */ |
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177 | int flags; /* CF_ flags */ |
247 | int flags; /* CF_ flags */ |
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248 | HV *hv; /* the perl hash associated with this coro, if any */ |
178 | |
249 | |
179 | /* optionally saved, might be zero */ |
250 | /* statistics */ |
180 | AV *defav; /* @_ */ |
251 | int usecount; /* number of transfers to this coro */ |
181 | SV *defsv; /* $_ */ |
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182 | SV *errsv; /* $@ */ |
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183 | GV *deffh; /* default filehandle */ |
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184 | SV *irssv; /* $/ */ |
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185 | SV *irssv_sv; /* real $/ cache */ |
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186 | |
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187 | #define VAR(name,type) type name; |
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188 | # include "state.h" |
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189 | #undef VAR |
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190 | |
252 | |
191 | /* coro process data */ |
253 | /* coro process data */ |
192 | int prio; |
254 | int prio; |
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255 | SV *except; /* exception to be thrown */ |
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256 | SV *rouse_cb; /* last rouse callback */ |
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257 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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258 | AV *status; /* the exit status list */ |
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259 | |
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260 | /* async_pool */ |
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261 | SV *saved_deffh; |
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262 | SV *invoke_cb; |
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263 | AV *invoke_av; |
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264 | |
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265 | /* on_enter/on_leave */ |
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266 | AV *on_enter; AV *on_enter_xs; |
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267 | AV *on_leave; AV *on_leave_xs; |
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268 | |
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269 | /* swap_sv */ |
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270 | AV *swap_sv; |
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271 | |
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272 | /* times */ |
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273 | coro_ts t_cpu, t_real; |
193 | |
274 | |
194 | /* linked list */ |
275 | /* linked list */ |
195 | struct coro *next, *prev; |
276 | struct coro *next, *prev; |
196 | HV *hv; /* the perl hash associated with this coro, if any */ |
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197 | }; |
277 | }; |
198 | |
278 | |
199 | typedef struct coro *Coro__State; |
279 | typedef struct coro *Coro__State; |
200 | typedef struct coro *Coro__State_or_hashref; |
280 | typedef struct coro *Coro__State_or_hashref; |
201 | |
281 | |
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282 | /* the following variables are effectively part of the perl context */ |
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283 | /* and get copied between struct coro and these variables */ |
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284 | /* the main reason we don't support windows process emulation */ |
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285 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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286 | |
202 | /** Coro ********************************************************************/ |
287 | /** Coro ********************************************************************/ |
203 | |
288 | |
204 | #define PRIO_MAX 3 |
289 | #define CORO_PRIO_MAX 3 |
205 | #define PRIO_HIGH 1 |
290 | #define CORO_PRIO_HIGH 1 |
206 | #define PRIO_NORMAL 0 |
291 | #define CORO_PRIO_NORMAL 0 |
207 | #define PRIO_LOW -1 |
292 | #define CORO_PRIO_LOW -1 |
208 | #define PRIO_IDLE -3 |
293 | #define CORO_PRIO_IDLE -3 |
209 | #define PRIO_MIN -4 |
294 | #define CORO_PRIO_MIN -4 |
210 | |
295 | |
211 | /* for Coro.pm */ |
296 | /* for Coro.pm */ |
212 | static SV *coro_current; |
297 | static SV *coro_current; |
213 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
298 | static SV *coro_readyhook; |
214 | static int coro_nready; |
299 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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300 | static CV *cv_coro_run; |
215 | static struct coro *coro_first; |
301 | static struct coro *coro_first; |
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302 | #define coro_nready coroapi.nready |
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303 | |
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304 | /** JIT *********************************************************************/ |
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305 | |
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306 | #if CORO_JIT |
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307 | /* APPLE doesn't have mmap though */ |
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308 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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309 | #ifndef CORO_JIT_TYPE |
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310 | #if ECB_AMD64 && CORO_JIT_UNIXY |
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311 | #define CORO_JIT_TYPE "amd64-unix" |
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312 | #elif __i386 && CORO_JIT_UNIXY |
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313 | #define CORO_JIT_TYPE "x86-unix" |
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314 | #endif |
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315 | #endif |
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316 | #endif |
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317 | |
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318 | #if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0 |
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319 | #undef CORO_JIT |
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320 | #endif |
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321 | |
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322 | #if CORO_JIT |
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323 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
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324 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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325 | #endif |
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326 | |
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327 | /** Coro::Select ************************************************************/ |
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328 | |
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329 | static OP *(*coro_old_pp_sselect) (pTHX); |
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330 | static SV *coro_select_select; |
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331 | |
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332 | /* horrible hack, but if it works... */ |
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333 | static OP * |
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334 | coro_pp_sselect (pTHX) |
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335 | { |
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336 | dSP; |
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337 | PUSHMARK (SP - 4); /* fake argument list */ |
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338 | XPUSHs (coro_select_select); |
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339 | PUTBACK; |
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340 | |
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341 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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342 | PL_op->op_flags |= OPf_STACKED; |
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343 | PL_op->op_private = 0; |
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344 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
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345 | } |
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346 | |
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347 | /** time stuff **************************************************************/ |
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348 | |
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349 | #ifdef HAS_GETTIMEOFDAY |
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350 | |
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351 | ecb_inline void |
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352 | coro_u2time (pTHX_ UV ret[2]) |
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353 | { |
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354 | struct timeval tv; |
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355 | gettimeofday (&tv, 0); |
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356 | |
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357 | ret [0] = tv.tv_sec; |
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358 | ret [1] = tv.tv_usec; |
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359 | } |
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360 | |
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361 | ecb_inline double |
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362 | coro_nvtime (void) |
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363 | { |
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364 | struct timeval tv; |
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365 | gettimeofday (&tv, 0); |
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366 | |
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367 | return tv.tv_sec + tv.tv_usec * 1e-6; |
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368 | } |
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369 | |
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370 | ecb_inline void |
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371 | time_init (pTHX) |
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372 | { |
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373 | nvtime = coro_nvtime; |
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374 | u2time = coro_u2time; |
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375 | } |
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376 | |
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377 | #else |
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378 | |
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379 | ecb_inline void |
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380 | time_init (pTHX) |
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381 | { |
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382 | SV **svp; |
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383 | |
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384 | require_pv ("Time/HiRes.pm"); |
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385 | |
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386 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
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387 | |
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388 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
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389 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
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390 | |
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391 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
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392 | |
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393 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
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394 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
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395 | } |
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396 | |
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397 | #endif |
216 | |
398 | |
217 | /** lowlevel stuff **********************************************************/ |
399 | /** lowlevel stuff **********************************************************/ |
218 | |
400 | |
219 | static AV * |
401 | static SV * ecb_noinline |
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402 | coro_get_sv (pTHX_ const char *name, int create) |
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403 | { |
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404 | #if PERL_VERSION_ATLEAST (5,10,0) |
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405 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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406 | get_sv (name, create); |
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407 | #endif |
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408 | return get_sv (name, create); |
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409 | } |
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410 | |
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411 | static AV * ecb_noinline |
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412 | coro_get_av (pTHX_ const char *name, int create) |
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413 | { |
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414 | #if PERL_VERSION_ATLEAST (5,10,0) |
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415 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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416 | get_av (name, create); |
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417 | #endif |
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418 | return get_av (name, create); |
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419 | } |
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420 | |
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421 | static HV * ecb_noinline |
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422 | coro_get_hv (pTHX_ const char *name, int create) |
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423 | { |
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424 | #if PERL_VERSION_ATLEAST (5,10,0) |
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425 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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426 | get_hv (name, create); |
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427 | #endif |
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428 | return get_hv (name, create); |
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429 | } |
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430 | |
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431 | ecb_inline void |
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432 | coro_times_update (void) |
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433 | { |
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434 | #ifdef coro_clock_gettime |
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435 | struct timespec ts; |
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436 | |
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437 | ts.tv_sec = ts.tv_nsec = 0; |
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438 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
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439 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
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440 | |
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441 | ts.tv_sec = ts.tv_nsec = 0; |
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442 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
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443 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
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444 | #else |
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445 | dTHX; |
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446 | UV tv[2]; |
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447 | |
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448 | u2time (aTHX_ tv); |
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449 | time_real [0] = tv [0]; |
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450 | time_real [1] = tv [1] * 1000; |
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451 | #endif |
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452 | } |
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453 | |
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454 | ecb_inline void |
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455 | coro_times_add (struct coro *c) |
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456 | { |
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457 | c->t_real [1] += time_real [1]; |
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458 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
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459 | c->t_real [0] += time_real [0]; |
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460 | |
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461 | c->t_cpu [1] += time_cpu [1]; |
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462 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
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463 | c->t_cpu [0] += time_cpu [0]; |
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464 | } |
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465 | |
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466 | ecb_inline void |
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467 | coro_times_sub (struct coro *c) |
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468 | { |
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469 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
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470 | c->t_real [1] -= time_real [1]; |
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471 | c->t_real [0] -= time_real [0]; |
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472 | |
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473 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
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474 | c->t_cpu [1] -= time_cpu [1]; |
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475 | c->t_cpu [0] -= time_cpu [0]; |
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476 | } |
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477 | |
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478 | /*****************************************************************************/ |
|
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479 | /* magic glue */ |
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480 | |
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481 | #define CORO_MAGIC_type_cv 26 |
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482 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
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483 | |
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484 | #define CORO_MAGIC_NN(sv, type) \ |
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485 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
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486 | ? SvMAGIC (sv) \ |
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487 | : mg_find (sv, type)) |
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488 | |
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489 | #define CORO_MAGIC(sv, type) \ |
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490 | (ecb_expect_true (SvMAGIC (sv)) \ |
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491 | ? CORO_MAGIC_NN (sv, type) \ |
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492 | : 0) |
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493 | |
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494 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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495 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
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496 | |
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497 | ecb_inline MAGIC * |
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498 | SvSTATEhv_p (pTHX_ SV *coro) |
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499 | { |
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500 | MAGIC *mg; |
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501 | |
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502 | if (ecb_expect_true ( |
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503 | SvTYPE (coro) == SVt_PVHV |
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504 | && (mg = CORO_MAGIC_state (coro)) |
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505 | && mg->mg_virtual == &coro_state_vtbl |
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506 | )) |
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507 | return mg; |
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508 | |
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509 | return 0; |
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510 | } |
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511 | |
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512 | ecb_inline struct coro * |
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513 | SvSTATE_ (pTHX_ SV *coro_sv) |
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514 | { |
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515 | MAGIC *mg; |
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516 | |
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517 | if (SvROK (coro_sv)) |
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518 | coro_sv = SvRV (coro_sv); |
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519 | |
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520 | mg = SvSTATEhv_p (aTHX_ coro_sv); |
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521 | if (!mg) |
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522 | croak ("Coro::State object required"); |
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523 | |
|
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524 | return (struct coro *)mg->mg_ptr; |
|
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525 | } |
|
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526 | |
|
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527 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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528 | |
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529 | /* faster than SvSTATE, but expects a coroutine hv */ |
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530 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
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531 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
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532 | |
|
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533 | /*****************************************************************************/ |
|
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534 | /* padlist management and caching */ |
|
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535 | |
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536 | ecb_inline PADLIST * |
220 | coro_clone_padlist (pTHX_ CV *cv) |
537 | coro_derive_padlist (pTHX_ CV *cv) |
221 | { |
538 | { |
222 | AV *padlist = CvPADLIST (cv); |
539 | PADLIST *padlist = CvPADLIST (cv); |
223 | AV *newpadlist, *newpad; |
540 | PADLIST *newpadlist; |
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541 | PADNAMELIST *padnames; |
|
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542 | PAD *newpad; |
|
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543 | PADOFFSET off = PadlistMAX (padlist) + 1; |
224 | |
544 | |
225 | newpadlist = newAV (); |
545 | #if NEWPADAPI |
|
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546 | |
|
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547 | /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */ |
|
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548 | /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */ |
|
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549 | while (!PadlistARRAY (padlist)[off - 1]) |
|
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550 | --off; |
|
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551 | |
|
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552 | Perl_pad_push (aTHX_ padlist, off); |
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553 | |
|
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554 | newpad = PadlistARRAY (padlist)[off]; |
|
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555 | PadlistARRAY (padlist)[off] = 0; |
|
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556 | |
|
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557 | #else |
|
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558 | |
|
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559 | #if PERL_VERSION_ATLEAST (5,10,0) |
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560 | Perl_pad_push (aTHX_ padlist, off); |
|
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561 | #else |
|
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562 | Perl_pad_push (aTHX_ padlist, off, 1); |
|
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563 | #endif |
|
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564 | |
|
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565 | newpad = PadlistARRAY (padlist)[off]; |
|
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566 | PadlistMAX (padlist) = off - 1; |
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567 | |
|
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568 | #endif |
|
|
569 | |
|
|
570 | newPADLIST (newpadlist); |
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571 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
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572 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
226 | AvREAL_off (newpadlist); |
573 | AvREAL_off (newpadlist); |
227 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
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228 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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229 | #else |
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230 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
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231 | #endif |
574 | #endif |
232 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
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233 | --AvFILLp (padlist); |
|
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234 | |
575 | |
235 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
576 | /* Already extended to 2 elements by newPADLIST. */ |
236 | av_store (newpadlist, 1, (SV *)newpad); |
577 | PadlistMAX (newpadlist) = 1; |
|
|
578 | |
|
|
579 | padnames = PadlistNAMES (padlist); |
|
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580 | ++PadnamelistREFCNT (padnames); |
|
|
581 | PadlistNAMES (newpadlist) = padnames; |
|
|
582 | |
|
|
583 | PadlistARRAY (newpadlist)[1] = newpad; |
237 | |
584 | |
238 | return newpadlist; |
585 | return newpadlist; |
239 | } |
586 | } |
240 | |
587 | |
241 | static void |
588 | ecb_inline void |
242 | free_padlist (pTHX_ AV *padlist) |
589 | free_padlist (pTHX_ PADLIST *padlist) |
243 | { |
590 | { |
244 | /* may be during global destruction */ |
591 | /* may be during global destruction */ |
245 | if (SvREFCNT (padlist)) |
592 | if (!IN_DESTRUCT) |
246 | { |
593 | { |
247 | I32 i = AvFILLp (padlist); |
594 | I32 i = PadlistMAX (padlist); |
248 | while (i >= 0) |
595 | |
|
|
596 | while (i > 0) /* special-case index 0 */ |
249 | { |
597 | { |
250 | SV **svp = av_fetch (padlist, i--, FALSE); |
598 | /* we try to be extra-careful here */ |
|
|
599 | PAD *pad = PadlistARRAY (padlist)[i--]; |
|
|
600 | |
251 | if (svp) |
601 | if (pad) |
252 | { |
602 | { |
253 | SV *sv; |
603 | I32 j = PadMAX (pad); |
254 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
604 | |
|
|
605 | while (j >= 0) |
255 | SvREFCNT_dec (sv); |
606 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
256 | |
607 | |
|
|
608 | PadMAX (pad) = -1; |
257 | SvREFCNT_dec (*svp); |
609 | SvREFCNT_dec (pad); |
258 | } |
610 | } |
259 | } |
611 | } |
260 | |
612 | |
|
|
613 | PadnamelistREFCNT_dec (PadlistNAMES (padlist)); |
|
|
614 | |
|
|
615 | #if NEWPADAPI |
|
|
616 | Safefree (PadlistARRAY (padlist)); |
|
|
617 | Safefree (padlist); |
|
|
618 | #else |
|
|
619 | AvFILLp (padlist) = -1; |
|
|
620 | AvREAL_off (padlist); |
261 | SvREFCNT_dec ((SV*)padlist); |
621 | SvREFCNT_dec ((SV*)padlist); |
|
|
622 | #endif |
262 | } |
623 | } |
263 | } |
624 | } |
264 | |
625 | |
265 | static int |
626 | static int |
266 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
627 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
267 | { |
628 | { |
268 | AV *padlist; |
629 | PADLIST *padlist; |
269 | AV *av = (AV *)mg->mg_obj; |
630 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
631 | size_t len = *(size_t *)mg->mg_ptr; |
270 | |
632 | |
271 | /* casting is fun. */ |
633 | /* perl manages to free our internal AV and _then_ call us */ |
272 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
634 | if (IN_DESTRUCT) |
|
|
635 | return 0; |
|
|
636 | |
|
|
637 | while (len--) |
273 | free_padlist (aTHX_ padlist); |
638 | free_padlist (aTHX_ padlists[len]); |
274 | |
|
|
275 | SvREFCNT_dec (av); |
|
|
276 | |
639 | |
277 | return 0; |
640 | return 0; |
278 | } |
641 | } |
279 | |
642 | |
280 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
643 | static MGVTBL coro_cv_vtbl = { |
281 | |
644 | 0, 0, 0, 0, |
282 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
645 | coro_cv_free |
283 | |
646 | }; |
284 | #define CORO_MAGIC(cv) \ |
|
|
285 | SvMAGIC (cv) \ |
|
|
286 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
287 | ? SvMAGIC (cv) \ |
|
|
288 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
289 | : 0 |
|
|
290 | |
647 | |
291 | /* the next two functions merely cache the padlists */ |
648 | /* the next two functions merely cache the padlists */ |
292 | static void |
649 | ecb_inline void |
293 | get_padlist (pTHX_ CV *cv) |
650 | get_padlist (pTHX_ CV *cv) |
294 | { |
651 | { |
295 | MAGIC *mg = CORO_MAGIC (cv); |
652 | MAGIC *mg = CORO_MAGIC_cv (cv); |
296 | AV *av; |
653 | size_t *lenp; |
297 | |
654 | |
298 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
655 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
299 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
656 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
300 | else |
657 | else |
301 | { |
658 | { |
302 | #if CORO_PREFER_PERL_FUNCTIONS |
659 | #if CORO_PREFER_PERL_FUNCTIONS |
303 | /* this is probably cleaner, but also slower? */ |
660 | /* this is probably cleaner? but also slower! */ |
|
|
661 | /* in practise, it seems to be less stable */ |
304 | CV *cp = Perl_cv_clone (cv); |
662 | CV *cp = Perl_cv_clone (aTHX_ cv); |
305 | CvPADLIST (cv) = CvPADLIST (cp); |
663 | CvPADLIST (cv) = CvPADLIST (cp); |
306 | CvPADLIST (cp) = 0; |
664 | CvPADLIST (cp) = 0; |
307 | SvREFCNT_dec (cp); |
665 | SvREFCNT_dec (cp); |
308 | #else |
666 | #else |
309 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
667 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
310 | #endif |
668 | #endif |
311 | } |
669 | } |
312 | } |
670 | } |
313 | |
671 | |
314 | static void |
672 | ecb_inline void |
315 | put_padlist (pTHX_ CV *cv) |
673 | put_padlist (pTHX_ CV *cv) |
316 | { |
674 | { |
317 | MAGIC *mg = CORO_MAGIC (cv); |
675 | MAGIC *mg = CORO_MAGIC_cv (cv); |
318 | AV *av; |
|
|
319 | |
676 | |
320 | if (!mg) |
677 | if (ecb_expect_false (!mg)) |
321 | { |
|
|
322 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
323 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
324 | mg->mg_virtual = &vtbl_coro; |
|
|
325 | mg->mg_obj = (SV *)newAV (); |
|
|
326 | } |
678 | { |
|
|
679 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
680 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
681 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
682 | } |
|
|
683 | else |
|
|
684 | Renew (mg->mg_ptr, |
|
|
685 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
686 | char); |
327 | |
687 | |
328 | av = (AV *)mg->mg_obj; |
688 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
329 | |
|
|
330 | if (AvFILLp (av) >= AvMAX (av)) |
|
|
331 | av_extend (av, AvMAX (av) + 1); |
|
|
332 | |
|
|
333 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
334 | } |
689 | } |
335 | |
690 | |
336 | /** load & save, init *******************************************************/ |
691 | /** load & save, init *******************************************************/ |
337 | |
692 | |
338 | #define SB do { |
693 | ecb_inline void |
339 | #define SE } while (0) |
694 | swap_sv (SV *a, SV *b) |
|
|
695 | { |
|
|
696 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
697 | SV tmp; |
340 | |
698 | |
341 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
699 | /* swap sv_any */ |
|
|
700 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
701 | |
|
|
702 | /* swap sv_flags */ |
|
|
703 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
704 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
705 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
706 | |
|
|
707 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
708 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
709 | * is much faster, so no quarrels here. alternatively, we could |
|
|
710 | * sv_upgrade to avoid this. |
|
|
711 | */ |
|
|
712 | { |
|
|
713 | /* swap sv_u */ |
|
|
714 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
715 | |
|
|
716 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
717 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
718 | */ |
|
|
719 | U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV); |
|
|
720 | #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0) |
|
|
721 | svany_in_head_set |= 1 << SVt_NV; |
|
|
722 | #endif |
|
|
723 | |
|
|
724 | #define svany_in_head(type) (svany_in_head_set & (1 << (type))) |
|
|
725 | |
|
|
726 | if (svany_in_head (SvTYPE (a))) |
|
|
727 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
728 | |
|
|
729 | if (svany_in_head (SvTYPE (b))) |
|
|
730 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
731 | } |
|
|
732 | #endif |
|
|
733 | } |
|
|
734 | |
|
|
735 | /* swap sv heads, at least logically */ |
|
|
736 | static void |
|
|
737 | swap_svs_enter (pTHX_ Coro__State c) |
|
|
738 | { |
|
|
739 | int i; |
|
|
740 | |
|
|
741 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
742 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
743 | } |
|
|
744 | |
|
|
745 | static void |
|
|
746 | swap_svs_leave (pTHX_ Coro__State c) |
|
|
747 | { |
|
|
748 | int i; |
|
|
749 | |
|
|
750 | for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2) |
|
|
751 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
752 | } |
|
|
753 | |
|
|
754 | #define SWAP_SVS_ENTER(coro) \ |
|
|
755 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
756 | swap_svs_enter (aTHX_ (coro)) |
|
|
757 | |
|
|
758 | #define SWAP_SVS_LEAVE(coro) \ |
|
|
759 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
760 | swap_svs_leave (aTHX_ (coro)) |
|
|
761 | |
|
|
762 | static void |
|
|
763 | on_enterleave_call (pTHX_ SV *cb); |
342 | |
764 | |
343 | static void |
765 | static void |
344 | load_perl (pTHX_ Coro__State c) |
766 | load_perl (pTHX_ Coro__State c) |
345 | { |
767 | { |
346 | #define VAR(name,type) PL_ ## name = c->name; |
768 | perl_slots *slot = c->slot; |
|
|
769 | c->slot = 0; |
|
|
770 | |
|
|
771 | PL_mainstack = c->mainstack; |
|
|
772 | |
|
|
773 | #if CORO_JIT |
|
|
774 | load_perl_slots (slot); |
|
|
775 | #else |
|
|
776 | #define VARx(name,expr,type) expr = slot->name; |
347 | # include "state.h" |
777 | #include "state.h" |
348 | #undef VAR |
778 | #endif |
349 | |
|
|
350 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
351 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
352 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
353 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
354 | |
|
|
355 | if (c->irssv) |
|
|
356 | { |
|
|
357 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
358 | { |
|
|
359 | SvREFCNT_dec (c->irssv); |
|
|
360 | c->irssv = 0; |
|
|
361 | } |
|
|
362 | else |
|
|
363 | { |
|
|
364 | REPLACE_SV (PL_rs, c->irssv); |
|
|
365 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
366 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
367 | } |
|
|
368 | } |
|
|
369 | |
779 | |
370 | { |
780 | { |
371 | dSP; |
781 | dSP; |
|
|
782 | |
372 | CV *cv; |
783 | CV *cv; |
373 | |
784 | |
374 | /* now do the ugly restore mess */ |
785 | /* now do the ugly restore mess */ |
375 | while ((cv = (CV *)POPs)) |
786 | while (ecb_expect_true (cv = (CV *)POPs)) |
376 | { |
787 | { |
377 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
788 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
378 | CvDEPTH (cv) = PTR2IV (POPs); |
789 | CvDEPTH (cv) = PTR2IV (POPs); |
379 | CvPADLIST (cv) = (AV *)POPs; |
790 | CvPADLIST (cv) = (PADLIST *)POPs; |
380 | } |
791 | } |
381 | |
792 | |
382 | PUTBACK; |
793 | PUTBACK; |
383 | } |
794 | } |
|
|
795 | |
|
|
796 | slf_frame = c->slf_frame; |
|
|
797 | CORO_THROW = c->except; |
|
|
798 | |
|
|
799 | if (ecb_expect_false (enable_times)) |
|
|
800 | { |
|
|
801 | if (ecb_expect_false (!times_valid)) |
|
|
802 | coro_times_update (); |
|
|
803 | |
|
|
804 | coro_times_sub (c); |
|
|
805 | } |
|
|
806 | |
|
|
807 | if (ecb_expect_false (c->on_enter)) |
|
|
808 | { |
|
|
809 | int i; |
|
|
810 | |
|
|
811 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
812 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
813 | } |
|
|
814 | |
|
|
815 | if (ecb_expect_false (c->on_enter_xs)) |
|
|
816 | { |
|
|
817 | int i; |
|
|
818 | |
|
|
819 | for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2) |
|
|
820 | ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]); |
|
|
821 | } |
|
|
822 | |
|
|
823 | SWAP_SVS_ENTER (c); |
384 | } |
824 | } |
385 | |
825 | |
386 | static void |
826 | static void |
387 | save_perl (pTHX_ Coro__State c) |
827 | save_perl (pTHX_ Coro__State c) |
388 | { |
828 | { |
|
|
829 | SWAP_SVS_LEAVE (c); |
|
|
830 | |
|
|
831 | if (ecb_expect_false (c->on_leave_xs)) |
|
|
832 | { |
|
|
833 | int i; |
|
|
834 | |
|
|
835 | for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2) |
|
|
836 | ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]); |
|
|
837 | } |
|
|
838 | |
|
|
839 | if (ecb_expect_false (c->on_leave)) |
|
|
840 | { |
|
|
841 | int i; |
|
|
842 | |
|
|
843 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
844 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
845 | } |
|
|
846 | |
|
|
847 | times_valid = 0; |
|
|
848 | |
|
|
849 | if (ecb_expect_false (enable_times)) |
|
|
850 | { |
|
|
851 | coro_times_update (); times_valid = 1; |
|
|
852 | coro_times_add (c); |
|
|
853 | } |
|
|
854 | |
|
|
855 | c->except = CORO_THROW; |
|
|
856 | c->slf_frame = slf_frame; |
|
|
857 | |
389 | { |
858 | { |
390 | dSP; |
859 | dSP; |
391 | I32 cxix = cxstack_ix; |
860 | I32 cxix = cxstack_ix; |
392 | PERL_CONTEXT *ccstk = cxstack; |
861 | PERL_CONTEXT *ccstk = cxstack; |
393 | PERL_SI *top_si = PL_curstackinfo; |
862 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
395 | /* |
864 | /* |
396 | * the worst thing you can imagine happens first - we have to save |
865 | * the worst thing you can imagine happens first - we have to save |
397 | * (and reinitialize) all cv's in the whole callchain :( |
866 | * (and reinitialize) all cv's in the whole callchain :( |
398 | */ |
867 | */ |
399 | |
868 | |
400 | EXTEND (SP, 3 + 1); |
|
|
401 | PUSHs (Nullsv); |
869 | XPUSHs (Nullsv); |
402 | /* this loop was inspired by pp_caller */ |
870 | /* this loop was inspired by pp_caller */ |
403 | for (;;) |
871 | for (;;) |
404 | { |
872 | { |
405 | while (cxix >= 0) |
873 | while (ecb_expect_true (cxix >= 0)) |
406 | { |
874 | { |
407 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
875 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
408 | |
876 | |
409 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
877 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
410 | { |
878 | { |
411 | CV *cv = cx->blk_sub.cv; |
879 | CV *cv = cx->blk_sub.cv; |
412 | |
880 | |
413 | if (CvDEPTH (cv)) |
881 | if (ecb_expect_true (CvDEPTH (cv))) |
414 | { |
882 | { |
415 | EXTEND (SP, 3); |
883 | EXTEND (SP, 3); |
416 | PUSHs ((SV *)CvPADLIST (cv)); |
884 | PUSHs ((SV *)CvPADLIST (cv)); |
417 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
885 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
418 | PUSHs ((SV *)cv); |
886 | PUSHs ((SV *)cv); |
419 | |
887 | |
420 | CvDEPTH (cv) = 0; |
888 | CvDEPTH (cv) = 0; |
421 | get_padlist (aTHX_ cv); |
889 | get_padlist (aTHX_ cv); |
422 | } |
890 | } |
423 | } |
891 | } |
424 | } |
892 | } |
425 | |
893 | |
426 | if (top_si->si_type == PERLSI_MAIN) |
894 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
427 | break; |
895 | break; |
428 | |
896 | |
429 | top_si = top_si->si_prev; |
897 | top_si = top_si->si_prev; |
430 | ccstk = top_si->si_cxstack; |
898 | ccstk = top_si->si_cxstack; |
431 | cxix = top_si->si_cxix; |
899 | cxix = top_si->si_cxix; |
432 | } |
900 | } |
433 | |
901 | |
434 | PUTBACK; |
902 | PUTBACK; |
435 | } |
903 | } |
436 | |
904 | |
437 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
905 | /* allocate some space on the context stack for our purposes */ |
438 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
906 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
439 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
907 | { |
440 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
908 | unsigned int i; |
441 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
|
|
442 | |
909 | |
443 | #define VAR(name,type)c->name = PL_ ## name; |
910 | for (i = 0; i < SLOT_COUNT; ++i) |
|
|
911 | CXINC; |
|
|
912 | |
|
|
913 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
914 | } |
|
|
915 | |
|
|
916 | c->mainstack = PL_mainstack; |
|
|
917 | |
|
|
918 | { |
|
|
919 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
920 | |
|
|
921 | #if CORO_JIT |
|
|
922 | save_perl_slots (slot); |
|
|
923 | #else |
|
|
924 | #define VARx(name,expr,type) slot->name = expr; |
444 | # include "state.h" |
925 | #include "state.h" |
445 | #undef VAR |
926 | #endif |
|
|
927 | } |
446 | } |
928 | } |
447 | |
929 | |
448 | /* |
930 | /* |
449 | * allocate various perl stacks. This is an exact copy |
931 | * allocate various perl stacks. This is almost an exact copy |
450 | * of perl.c:init_stacks, except that it uses less memory |
932 | * of perl.c:init_stacks, except that it uses less memory |
451 | * on the (sometimes correct) assumption that coroutines do |
933 | * on the (sometimes correct) assumption that coroutines do |
452 | * not usually need a lot of stackspace. |
934 | * not usually need a lot of stackspace. |
453 | */ |
935 | */ |
454 | #if CORO_PREFER_PERL_FUNCTIONS |
936 | #if CORO_PREFER_PERL_FUNCTIONS |
455 | # define coro_init_stacks init_stacks |
937 | # define coro_init_stacks(thx) init_stacks () |
456 | #else |
938 | #else |
457 | static void |
939 | static void |
458 | coro_init_stacks (pTHX) |
940 | coro_init_stacks (pTHX) |
459 | { |
941 | { |
460 | PL_curstackinfo = new_stackinfo(64, 4); |
942 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
461 | PL_curstackinfo->si_type = PERLSI_MAIN; |
943 | PL_curstackinfo->si_type = PERLSI_MAIN; |
462 | PL_curstack = PL_curstackinfo->si_stack; |
944 | PL_curstack = PL_curstackinfo->si_stack; |
463 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
945 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
464 | |
946 | |
465 | PL_stack_base = AvARRAY(PL_curstack); |
947 | PL_stack_base = AvARRAY(PL_curstack); |
466 | PL_stack_sp = PL_stack_base; |
948 | PL_stack_sp = PL_stack_base; |
467 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
949 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
468 | |
950 | |
469 | New(50,PL_tmps_stack,64,SV*); |
951 | New(50,PL_tmps_stack,32,SV*); |
470 | PL_tmps_floor = -1; |
952 | PL_tmps_floor = -1; |
471 | PL_tmps_ix = -1; |
953 | PL_tmps_ix = -1; |
472 | PL_tmps_max = 64; |
954 | PL_tmps_max = 32; |
473 | |
955 | |
474 | New(54,PL_markstack,16,I32); |
956 | New(54,PL_markstack,16,I32); |
475 | PL_markstack_ptr = PL_markstack; |
957 | PL_markstack_ptr = PL_markstack; |
476 | PL_markstack_max = PL_markstack + 16; |
958 | PL_markstack_max = PL_markstack + 16; |
477 | |
959 | |
478 | #ifdef SET_MARK_OFFSET |
960 | #ifdef SET_MARK_OFFSET |
479 | SET_MARK_OFFSET; |
961 | SET_MARK_OFFSET; |
480 | #endif |
962 | #endif |
481 | |
963 | |
482 | New(54,PL_scopestack,16,I32); |
964 | New(54,PL_scopestack,8,I32); |
483 | PL_scopestack_ix = 0; |
965 | PL_scopestack_ix = 0; |
484 | PL_scopestack_max = 16; |
966 | PL_scopestack_max = 8; |
|
|
967 | #if HAS_SCOPESTACK_NAME |
|
|
968 | New(54,PL_scopestack_name,8,const char*); |
|
|
969 | #endif |
485 | |
970 | |
486 | New(54,PL_savestack,32,ANY); |
971 | New(54,PL_savestack,24,ANY); |
487 | PL_savestack_ix = 0; |
972 | PL_savestack_ix = 0; |
488 | PL_savestack_max = 32; |
973 | PL_savestack_max = 24; |
489 | |
|
|
490 | #if !PERL_VERSION_ATLEAST (5,9,0) |
974 | #if !PERL_VERSION_ATLEAST (5,24,0) |
|
|
975 | /* perl 5.24 moves SS_MAXPUSH optimisation from */ |
|
|
976 | /* the header macros to PL_savestack_max */ |
|
|
977 | PL_savestack_max -= SS_MAXPUSH; |
|
|
978 | #endif |
|
|
979 | |
|
|
980 | #if !PERL_VERSION_ATLEAST (5,10,0) |
491 | New(54,PL_retstack,8,OP*); |
981 | New(54,PL_retstack,4,OP*); |
492 | PL_retstack_ix = 0; |
982 | PL_retstack_ix = 0; |
493 | PL_retstack_max = 8; |
983 | PL_retstack_max = 4; |
494 | #endif |
984 | #endif |
495 | } |
985 | } |
496 | #endif |
986 | #endif |
497 | |
987 | |
498 | /* |
988 | /* |
499 | * destroy the stacks, the callchain etc... |
989 | * destroy the stacks, the callchain etc... |
500 | */ |
990 | */ |
501 | static void |
991 | static void |
502 | coro_destroy_stacks (pTHX) |
992 | coro_destruct_stacks (pTHX) |
503 | { |
993 | { |
504 | if (!IN_DESTRUCT) |
|
|
505 | { |
|
|
506 | /* restore all saved variables and stuff */ |
|
|
507 | LEAVE_SCOPE (0); |
|
|
508 | assert (PL_tmps_floor == -1); |
|
|
509 | |
|
|
510 | /* free all temporaries */ |
|
|
511 | FREETMPS; |
|
|
512 | assert (PL_tmps_ix == -1); |
|
|
513 | |
|
|
514 | /* unwind all extra stacks */ |
|
|
515 | POPSTACK_TO (PL_mainstack); |
|
|
516 | |
|
|
517 | /* unwind main stack */ |
|
|
518 | dounwind (-1); |
|
|
519 | } |
|
|
520 | |
|
|
521 | while (PL_curstackinfo->si_next) |
994 | while (PL_curstackinfo->si_next) |
522 | PL_curstackinfo = PL_curstackinfo->si_next; |
995 | PL_curstackinfo = PL_curstackinfo->si_next; |
523 | |
996 | |
524 | while (PL_curstackinfo) |
997 | while (PL_curstackinfo) |
525 | { |
998 | { |
… | |
… | |
534 | } |
1007 | } |
535 | |
1008 | |
536 | Safefree (PL_tmps_stack); |
1009 | Safefree (PL_tmps_stack); |
537 | Safefree (PL_markstack); |
1010 | Safefree (PL_markstack); |
538 | Safefree (PL_scopestack); |
1011 | Safefree (PL_scopestack); |
|
|
1012 | #if HAS_SCOPESTACK_NAME |
|
|
1013 | Safefree (PL_scopestack_name); |
|
|
1014 | #endif |
539 | Safefree (PL_savestack); |
1015 | Safefree (PL_savestack); |
540 | #if !PERL_VERSION_ATLEAST (5,9,0) |
1016 | #if !PERL_VERSION_ATLEAST (5,10,0) |
541 | Safefree (PL_retstack); |
1017 | Safefree (PL_retstack); |
542 | #endif |
1018 | #endif |
543 | } |
1019 | } |
544 | |
1020 | |
|
|
1021 | #define CORO_RSS \ |
|
|
1022 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
1023 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
1024 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
1025 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
1026 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
1027 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
1028 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
1029 | |
545 | static size_t |
1030 | static size_t |
546 | coro_rss (struct coro *coro) |
1031 | coro_rss (pTHX_ struct coro *coro) |
547 | { |
1032 | { |
548 | size_t rss = sizeof (coro); |
1033 | size_t rss = sizeof (*coro); |
549 | |
1034 | |
550 | if (coro->mainstack) |
1035 | if (coro->mainstack) |
551 | { |
1036 | { |
552 | if (coro->flags & CF_RUNNING) |
1037 | if (coro->flags & CF_RUNNING) |
553 | { |
1038 | { |
554 | #define VAR(name,type)coro->name = PL_ ## name; |
1039 | #define SYM(sym) PL_ ## sym |
555 | # include "state.h" |
1040 | CORO_RSS; |
556 | #undef VAR |
1041 | #undef SYM |
557 | } |
1042 | } |
558 | |
1043 | else |
559 | rss += sizeof (coro->curstackinfo); |
1044 | { |
560 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
1045 | #define SYM(sym) coro->slot->sym |
561 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
1046 | CORO_RSS; |
562 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
1047 | #undef SYM |
563 | rss += coro->tmps_max * sizeof (SV *); |
1048 | } |
564 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
565 | rss += coro->scopestack_max * sizeof (I32); |
|
|
566 | rss += coro->savestack_max * sizeof (ANY); |
|
|
567 | |
|
|
568 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
569 | rss += coro->retstack_max * sizeof (OP *); |
|
|
570 | #endif |
|
|
571 | } |
1049 | } |
572 | |
1050 | |
573 | return rss; |
1051 | return rss; |
574 | } |
1052 | } |
575 | |
1053 | |
|
|
1054 | /** provide custom get/set/clear methods for %SIG elements ******************/ |
|
|
1055 | |
|
|
1056 | /* apparently < 5.8.8 */ |
|
|
1057 | #ifndef MgPV_nolen_const |
|
|
1058 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
1059 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
1060 | (const char*)(mg)->mg_ptr) |
|
|
1061 | #endif |
|
|
1062 | |
|
|
1063 | /* this will be a patched copy of PL_vtbl_sigelem */ |
|
|
1064 | static MGVTBL coro_sigelem_vtbl; |
|
|
1065 | |
|
|
1066 | static int ecb_cold |
|
|
1067 | coro_sig_copy (pTHX_ SV *sv, MAGIC *mg, SV *nsv, const char *name, I32 namlen) |
|
|
1068 | { |
|
|
1069 | sv_magic (nsv, mg->mg_obj, PERL_MAGIC_sigelem, name, namlen); |
|
|
1070 | assert (mg_find (nsv, PERL_MAGIC_sigelem)->mg_virtual == &PL_vtbl_sigelem); |
|
|
1071 | mg_find (nsv, PERL_MAGIC_sigelem)->mg_virtual = &coro_sigelem_vtbl; |
|
|
1072 | return 1; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | /* perl does not have a %SIG vtbl, we provide one so we can override */ |
|
|
1076 | /* the cwvtblagic for %SIG members */ |
|
|
1077 | static const MGVTBL coro_sig_vtbl = { |
|
|
1078 | 0, 0, 0, 0, 0, |
|
|
1079 | coro_sig_copy |
|
|
1080 | }; |
|
|
1081 | |
|
|
1082 | /* |
|
|
1083 | * This overrides the default magic get method of %SIG elements. |
|
|
1084 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
1085 | * and instead of trying to save and restore the hash elements (extremely slow), |
|
|
1086 | * we just provide our own readback here. |
|
|
1087 | */ |
|
|
1088 | static int ecb_cold |
|
|
1089 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
1090 | { |
|
|
1091 | const char *s = MgPV_nolen_const (mg); |
|
|
1092 | |
|
|
1093 | if (*s == '_') |
|
|
1094 | { |
|
|
1095 | SV **svp = 0; |
|
|
1096 | |
|
|
1097 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1098 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1099 | |
|
|
1100 | if (svp) |
|
|
1101 | { |
|
|
1102 | SV *ssv; |
|
|
1103 | |
|
|
1104 | if (!*svp) |
|
|
1105 | ssv = &PL_sv_undef; |
|
|
1106 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1107 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1108 | else |
|
|
1109 | ssv = *svp; |
|
|
1110 | |
|
|
1111 | sv_setsv (sv, ssv); |
|
|
1112 | return 0; |
|
|
1113 | } |
|
|
1114 | } |
|
|
1115 | |
|
|
1116 | return PL_vtbl_sigelem.svt_get ? PL_vtbl_sigelem.svt_get (aTHX_ sv, mg) : 0; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | static int ecb_cold |
|
|
1120 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
1121 | { |
|
|
1122 | const char *s = MgPV_nolen_const (mg); |
|
|
1123 | |
|
|
1124 | if (*s == '_') |
|
|
1125 | { |
|
|
1126 | SV **svp = 0; |
|
|
1127 | |
|
|
1128 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1129 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1130 | |
|
|
1131 | if (svp) |
|
|
1132 | { |
|
|
1133 | SV *old = *svp; |
|
|
1134 | *svp = 0; |
|
|
1135 | SvREFCNT_dec (old); |
|
|
1136 | return 0; |
|
|
1137 | } |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | return PL_vtbl_sigelem.svt_clear ? PL_vtbl_sigelem.svt_clear (aTHX_ sv, mg) : 0; |
|
|
1141 | } |
|
|
1142 | |
|
|
1143 | static int ecb_cold |
|
|
1144 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1145 | { |
|
|
1146 | const char *s = MgPV_nolen_const (mg); |
|
|
1147 | |
|
|
1148 | if (*s == '_') |
|
|
1149 | { |
|
|
1150 | SV **svp = 0; |
|
|
1151 | |
|
|
1152 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1153 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1154 | |
|
|
1155 | if (svp) |
|
|
1156 | { |
|
|
1157 | SV *old = *svp; |
|
|
1158 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1159 | SvREFCNT_dec (old); |
|
|
1160 | return 0; |
|
|
1161 | } |
|
|
1162 | } |
|
|
1163 | |
|
|
1164 | return PL_vtbl_sigelem.svt_set ? PL_vtbl_sigelem.svt_set (aTHX_ sv, mg) : 0; |
|
|
1165 | } |
|
|
1166 | |
|
|
1167 | static void |
|
|
1168 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1169 | { |
|
|
1170 | /* kind of mega-hacky, but works */ |
|
|
1171 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | static int |
|
|
1175 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1176 | { |
|
|
1177 | return 0; |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | static int |
|
|
1181 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1182 | { |
|
|
1183 | return 1; |
|
|
1184 | } |
|
|
1185 | |
576 | /** coroutine stack handling ************************************************/ |
1186 | /** coroutine stack handling ************************************************/ |
577 | |
1187 | |
578 | static void |
1188 | static UNOP init_perl_op; |
|
|
1189 | |
|
|
1190 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
579 | setup_coro (pTHX_ struct coro *coro) |
1191 | init_perl (pTHX_ struct coro *coro) |
580 | { |
1192 | { |
581 | /* |
1193 | /* |
582 | * emulate part of the perl startup here. |
1194 | * emulate part of the perl startup here. |
583 | */ |
1195 | */ |
584 | coro_init_stacks (aTHX); |
1196 | coro_init_stacks (aTHX); |
585 | |
1197 | |
|
|
1198 | PL_runops = RUNOPS_DEFAULT; |
586 | PL_curcop = &PL_compiling; |
1199 | PL_curcop = &PL_compiling; |
587 | PL_in_eval = EVAL_NULL; |
1200 | PL_in_eval = EVAL_NULL; |
588 | PL_comppad = 0; |
1201 | PL_comppad = 0; |
|
|
1202 | PL_comppad_name = 0; |
|
|
1203 | PL_comppad_name_fill = 0; |
|
|
1204 | PL_comppad_name_floor = 0; |
589 | PL_curpm = 0; |
1205 | PL_curpm = 0; |
|
|
1206 | PL_curpad = 0; |
590 | PL_localizing = 0; |
1207 | PL_localizing = 0; |
591 | PL_dirty = 0; |
|
|
592 | PL_restartop = 0; |
1208 | PL_restartop = 0; |
|
|
1209 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1210 | PL_parser = 0; |
|
|
1211 | #endif |
|
|
1212 | PL_hints = 0; |
|
|
1213 | |
|
|
1214 | /* recreate the die/warn hooks */ |
|
|
1215 | PL_diehook = SvREFCNT_inc (rv_diehook); |
|
|
1216 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
|
|
1217 | |
|
|
1218 | GvSV (PL_defgv) = newSV (0); |
|
|
1219 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
1220 | GvSV (PL_errgv) = newSV (0); |
|
|
1221 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1222 | GvHV (PL_hintgv) = newHV (); |
|
|
1223 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1224 | hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints); |
|
|
1225 | #endif |
|
|
1226 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
1227 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
593 | |
1228 | |
594 | { |
1229 | { |
595 | dSP; |
1230 | dSP; |
596 | LOGOP myop; |
1231 | UNOP myop; |
597 | |
1232 | |
598 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
599 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
600 | |
|
|
601 | Zero (&myop, 1, LOGOP); |
1233 | Zero (&myop, 1, UNOP); |
602 | myop.op_next = Nullop; |
1234 | myop.op_next = Nullop; |
|
|
1235 | myop.op_type = OP_ENTERSUB; |
603 | myop.op_flags = OPf_WANT_VOID; |
1236 | myop.op_flags = OPf_WANT_VOID; |
604 | |
1237 | |
605 | PUSHMARK (SP); |
1238 | PUSHMARK (SP); |
606 | XPUSHs (av_shift (GvAV (PL_defgv))); |
1239 | PUSHs ((SV *)coro->startcv); |
607 | PUTBACK; |
1240 | PUTBACK; |
608 | PL_op = (OP *)&myop; |
1241 | PL_op = (OP *)&myop; |
609 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1242 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
610 | SPAGAIN; |
|
|
611 | } |
1243 | } |
612 | |
1244 | |
613 | ENTER; /* necessary e.g. for dounwind */ |
1245 | /* this newly created coroutine might be run on an existing cctx which most |
614 | } |
1246 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1247 | */ |
|
|
1248 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1249 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1250 | slf_frame.destroy = 0; |
615 | |
1251 | |
|
|
1252 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1253 | init_perl_op.op_next = PL_op; |
|
|
1254 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1255 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1256 | /* no flags etc. required, as an init function won't be called */ |
|
|
1257 | |
|
|
1258 | PL_op = (OP *)&init_perl_op; |
|
|
1259 | |
|
|
1260 | /* copy throw, in case it was set before init_perl */ |
|
|
1261 | CORO_THROW = coro->except; |
|
|
1262 | |
|
|
1263 | SWAP_SVS_ENTER (coro); |
|
|
1264 | |
|
|
1265 | if (ecb_expect_false (enable_times)) |
|
|
1266 | { |
|
|
1267 | coro_times_update (); |
|
|
1268 | coro_times_sub (coro); |
|
|
1269 | } |
|
|
1270 | } |
|
|
1271 | |
616 | static void |
1272 | static void |
|
|
1273 | coro_unwind_stacks (pTHX) |
|
|
1274 | { |
|
|
1275 | if (!IN_DESTRUCT) |
|
|
1276 | { |
|
|
1277 | /* restore all saved variables and stuff */ |
|
|
1278 | LEAVE_SCOPE (0); |
|
|
1279 | assert (PL_tmps_floor == -1); |
|
|
1280 | |
|
|
1281 | /* free all temporaries */ |
|
|
1282 | FREETMPS; |
|
|
1283 | assert (PL_tmps_ix == -1); |
|
|
1284 | |
|
|
1285 | /* unwind all extra stacks */ |
|
|
1286 | POPSTACK_TO (PL_mainstack); |
|
|
1287 | |
|
|
1288 | /* unwind main stack */ |
|
|
1289 | dounwind (-1); |
|
|
1290 | } |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | static void |
|
|
1294 | destroy_perl (pTHX_ struct coro *coro) |
|
|
1295 | { |
|
|
1296 | SV *svf [9]; |
|
|
1297 | |
|
|
1298 | { |
|
|
1299 | SV *old_current = SvRV (coro_current); |
|
|
1300 | struct coro *current = SvSTATE (old_current); |
|
|
1301 | |
|
|
1302 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1303 | |
|
|
1304 | save_perl (aTHX_ current); |
|
|
1305 | |
|
|
1306 | /* this will cause transfer_check to croak on block*/ |
|
|
1307 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1308 | |
|
|
1309 | load_perl (aTHX_ coro); |
|
|
1310 | |
|
|
1311 | /* restore swapped sv's */ |
|
|
1312 | SWAP_SVS_LEAVE (coro); |
|
|
1313 | |
|
|
1314 | coro_unwind_stacks (aTHX); |
|
|
1315 | |
|
|
1316 | coro_destruct_stacks (aTHX); |
|
|
1317 | |
|
|
1318 | /* now save some sv's to be free'd later */ |
|
|
1319 | svf [0] = GvSV (PL_defgv); |
|
|
1320 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1321 | svf [2] = GvSV (PL_errgv); |
|
|
1322 | svf [3] = (SV *)PL_defoutgv; |
|
|
1323 | svf [4] = PL_rs; |
|
|
1324 | svf [5] = GvSV (irsgv); |
|
|
1325 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1326 | svf [7] = PL_diehook; |
|
|
1327 | svf [8] = PL_warnhook; |
|
|
1328 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1329 | |
|
|
1330 | SvRV_set (coro_current, old_current); |
|
|
1331 | |
|
|
1332 | load_perl (aTHX_ current); |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | { |
|
|
1336 | unsigned int i; |
|
|
1337 | |
|
|
1338 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1339 | SvREFCNT_dec (svf [i]); |
|
|
1340 | |
|
|
1341 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1342 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1343 | SvREFCNT_dec (coro->invoke_cb); |
|
|
1344 | SvREFCNT_dec (coro->invoke_av); |
|
|
1345 | SvREFCNT_dec (coro->on_enter_xs); |
|
|
1346 | SvREFCNT_dec (coro->on_leave_xs); |
|
|
1347 | } |
|
|
1348 | } |
|
|
1349 | |
|
|
1350 | ecb_inline void |
617 | free_coro_mortal (pTHX) |
1351 | free_coro_mortal (pTHX) |
618 | { |
1352 | { |
619 | if (coro_mortal) |
1353 | if (ecb_expect_true (coro_mortal)) |
620 | { |
1354 | { |
621 | SvREFCNT_dec (coro_mortal); |
1355 | SvREFCNT_dec ((SV *)coro_mortal); |
622 | coro_mortal = 0; |
1356 | coro_mortal = 0; |
623 | } |
1357 | } |
624 | } |
1358 | } |
625 | |
1359 | |
626 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1360 | static int |
627 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1361 | runops_trace (pTHX) |
628 | /* during execution of a perl program */ |
|
|
629 | static void NOINLINE |
|
|
630 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
631 | { |
1362 | { |
632 | dSP; |
1363 | COP *oldcop = 0; |
633 | LOGOP myop; |
1364 | int oldcxix = -2; |
634 | |
1365 | |
635 | Zero (&myop, 1, LOGOP); |
1366 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
636 | myop.op_next = PL_op; |
1367 | { |
637 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1368 | PERL_ASYNC_CHECK (); |
638 | |
1369 | |
639 | PUSHMARK (SP); |
1370 | if (cctx_current->flags & CC_TRACE_ALL) |
640 | EXTEND (SP, 2); |
1371 | { |
641 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1372 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
642 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1373 | { |
643 | PUTBACK; |
1374 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
644 | PL_op = (OP *)&myop; |
1375 | SV **bot, **top; |
645 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1376 | AV *av = newAV (); /* return values */ |
646 | SPAGAIN; |
1377 | SV **cb; |
|
|
1378 | dSP; |
|
|
1379 | |
|
|
1380 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1381 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1382 | if (isGV (gv)) |
|
|
1383 | gv_efullname3 (fullname, gv, 0); |
|
|
1384 | |
|
|
1385 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
1386 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
1387 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
1388 | : bot; |
|
|
1389 | |
|
|
1390 | av_extend (av, top - bot); |
|
|
1391 | while (bot < top) |
|
|
1392 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
1393 | |
|
|
1394 | PL_runops = RUNOPS_DEFAULT; |
|
|
1395 | ENTER; |
|
|
1396 | SAVETMPS; |
|
|
1397 | EXTEND (SP, 3); |
|
|
1398 | PUSHMARK (SP); |
|
|
1399 | PUSHs (&PL_sv_no); |
|
|
1400 | PUSHs (fullname); |
|
|
1401 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
1402 | PUTBACK; |
|
|
1403 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1404 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1405 | SPAGAIN; |
|
|
1406 | FREETMPS; |
|
|
1407 | LEAVE; |
|
|
1408 | PL_runops = runops_trace; |
|
|
1409 | } |
|
|
1410 | |
|
|
1411 | if (oldcop != PL_curcop) |
|
|
1412 | { |
|
|
1413 | oldcop = PL_curcop; |
|
|
1414 | |
|
|
1415 | if (PL_curcop != &PL_compiling) |
|
|
1416 | { |
|
|
1417 | SV **cb; |
|
|
1418 | |
|
|
1419 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0) |
|
|
1420 | { |
|
|
1421 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1422 | |
|
|
1423 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
1424 | { |
|
|
1425 | dSP; |
|
|
1426 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1427 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1428 | |
|
|
1429 | if (isGV (gv)) |
|
|
1430 | gv_efullname3 (fullname, gv, 0); |
|
|
1431 | |
|
|
1432 | PL_runops = RUNOPS_DEFAULT; |
|
|
1433 | ENTER; |
|
|
1434 | SAVETMPS; |
|
|
1435 | EXTEND (SP, 3); |
|
|
1436 | PUSHMARK (SP); |
|
|
1437 | PUSHs (&PL_sv_yes); |
|
|
1438 | PUSHs (fullname); |
|
|
1439 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1440 | PUTBACK; |
|
|
1441 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1442 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1443 | SPAGAIN; |
|
|
1444 | FREETMPS; |
|
|
1445 | LEAVE; |
|
|
1446 | PL_runops = runops_trace; |
|
|
1447 | } |
|
|
1448 | |
|
|
1449 | oldcxix = cxstack_ix; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | if (cctx_current->flags & CC_TRACE_LINE) |
|
|
1453 | { |
|
|
1454 | dSP; |
|
|
1455 | |
|
|
1456 | PL_runops = RUNOPS_DEFAULT; |
|
|
1457 | ENTER; |
|
|
1458 | SAVETMPS; |
|
|
1459 | EXTEND (SP, 3); |
|
|
1460 | PL_runops = RUNOPS_DEFAULT; |
|
|
1461 | PUSHMARK (SP); |
|
|
1462 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1463 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1464 | PUTBACK; |
|
|
1465 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1466 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1467 | SPAGAIN; |
|
|
1468 | FREETMPS; |
|
|
1469 | LEAVE; |
|
|
1470 | PL_runops = runops_trace; |
|
|
1471 | } |
|
|
1472 | } |
|
|
1473 | } |
|
|
1474 | } |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | TAINT_NOT; |
|
|
1478 | return 0; |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | static struct CoroSLF cctx_ssl_frame; |
|
|
1482 | |
|
|
1483 | static void |
|
|
1484 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1485 | { |
|
|
1486 | ta->prev = 0; |
|
|
1487 | } |
|
|
1488 | |
|
|
1489 | static int |
|
|
1490 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1491 | { |
|
|
1492 | *frame = cctx_ssl_frame; |
|
|
1493 | |
|
|
1494 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1498 | static void ecb_noinline |
|
|
1499 | cctx_prepare (pTHX) |
|
|
1500 | { |
|
|
1501 | PL_top_env = &PL_start_env; |
|
|
1502 | |
|
|
1503 | if (cctx_current->flags & CC_TRACE) |
|
|
1504 | PL_runops = runops_trace; |
|
|
1505 | |
|
|
1506 | /* we already must be executing an SLF op, there is no other valid way |
|
|
1507 | * that can lead to creation of a new cctx */ |
|
|
1508 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1509 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
|
|
1510 | |
|
|
1511 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
|
|
1512 | cctx_ssl_frame = slf_frame; |
|
|
1513 | |
|
|
1514 | slf_frame.prepare = slf_prepare_set_stacklevel; |
|
|
1515 | slf_frame.check = slf_check_set_stacklevel; |
|
|
1516 | } |
|
|
1517 | |
|
|
1518 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1519 | ecb_inline void |
|
|
1520 | transfer_tail (pTHX) |
|
|
1521 | { |
|
|
1522 | free_coro_mortal (aTHX); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | /* try to exit the same way perl's main function would do */ |
|
|
1526 | /* we do not bother resetting the environment or other things *7 |
|
|
1527 | /* that are not, uhm, essential */ |
|
|
1528 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1529 | static void ecb_noinline ecb_cold |
|
|
1530 | perlish_exit (pTHX) |
|
|
1531 | { |
|
|
1532 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1533 | perl_free (PL_curinterp); |
|
|
1534 | exit (exitstatus); |
647 | } |
1535 | } |
648 | |
1536 | |
649 | /* |
1537 | /* |
650 | * this is a _very_ stripped down perl interpreter ;) |
1538 | * this is a _very_ stripped down perl interpreter ;) |
651 | */ |
1539 | */ |
652 | static void |
1540 | static void |
653 | coro_run (void *arg) |
1541 | cctx_run (void *arg) |
654 | { |
1542 | { |
|
|
1543 | #ifdef USE_ITHREADS |
|
|
1544 | # if CORO_PTHREAD |
|
|
1545 | PERL_SET_CONTEXT (coro_thx); |
|
|
1546 | # endif |
|
|
1547 | #endif |
|
|
1548 | { |
655 | dTHX; |
1549 | dTHX; |
656 | |
1550 | |
657 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1551 | /* normally we would need to skip the entersub here */ |
658 | UNLOCK; |
1552 | /* not doing so will re-execute it, which is exactly what we want */ |
|
|
1553 | /* PL_nop = PL_nop->op_next */ |
659 | |
1554 | |
660 | PL_top_env = &PL_start_env; |
|
|
661 | |
|
|
662 | /* inject a fake subroutine call to cctx_init */ |
1555 | /* inject a fake subroutine call to cctx_init */ |
663 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1556 | cctx_prepare (aTHX); |
664 | |
1557 | |
|
|
1558 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1559 | transfer_tail (aTHX); |
|
|
1560 | |
665 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1561 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
666 | PL_restartop = PL_op; |
1562 | PL_restartop = PL_op; |
667 | perl_run (PL_curinterp); |
1563 | perl_run (PL_curinterp); |
668 | |
|
|
669 | /* |
1564 | /* |
|
|
1565 | * Unfortunately, there is no way to get at the return values of the |
|
|
1566 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1567 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1568 | */ |
|
|
1569 | |
|
|
1570 | /* |
|
|
1571 | * pp_entersub in 5.24 no longer ENTERs, but perl_destruct |
|
|
1572 | * requires PL_scopestack_ix, so do it here if required. |
|
|
1573 | */ |
|
|
1574 | if (!PL_scopestack_ix) |
|
|
1575 | ENTER; |
|
|
1576 | |
|
|
1577 | /* |
670 | * If perl-run returns we assume exit() was being called or the coro |
1578 | * If perl-run returns we assume exit() was being called or the coro |
671 | * fell off the end, which seems to be the only valid (non-bug) |
1579 | * fell off the end, which seems to be the only valid (non-bug) |
672 | * reason for perl_run to return. We try to exit by jumping to the |
1580 | * reason for perl_run to return. We try to mimic whatever perl is normally |
673 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1581 | * doing in that case. YMMV. |
674 | * coroutine as Coro has no such concept |
|
|
675 | */ |
1582 | */ |
676 | PL_top_env = main_top_env; |
1583 | perlish_exit (aTHX); |
677 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1584 | } |
678 | } |
1585 | } |
679 | |
1586 | |
680 | static coro_cctx * |
1587 | static coro_cctx * |
681 | cctx_new () |
1588 | cctx_new (void) |
682 | { |
1589 | { |
683 | coro_cctx *cctx; |
1590 | coro_cctx *cctx; |
684 | void *stack_start; |
|
|
685 | size_t stack_size; |
|
|
686 | |
1591 | |
687 | ++cctx_count; |
1592 | ++cctx_count; |
688 | |
|
|
689 | Newz (0, cctx, 1, coro_cctx); |
1593 | New (0, cctx, 1, coro_cctx); |
690 | |
1594 | |
691 | #if HAVE_MMAP |
1595 | cctx->gen = cctx_gen; |
|
|
1596 | cctx->flags = 0; |
|
|
1597 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
692 | |
1598 | |
693 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1599 | return cctx; |
694 | /* mmap supposedly does allocate-on-write for us */ |
1600 | } |
695 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
696 | |
1601 | |
697 | if (cctx->sptr != (void *)-1) |
1602 | /* create a new cctx only suitable as source */ |
698 | { |
1603 | static coro_cctx * |
699 | # if CORO_STACKGUARD |
1604 | cctx_new_empty (void) |
700 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1605 | { |
701 | # endif |
1606 | coro_cctx *cctx = cctx_new (); |
702 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1607 | |
703 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1608 | cctx->stack.sptr = 0; |
704 | cctx->mapped = 1; |
1609 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1610 | |
|
|
1611 | return cctx; |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1615 | static coro_cctx * |
|
|
1616 | cctx_new_run (void) |
|
|
1617 | { |
|
|
1618 | coro_cctx *cctx = cctx_new (); |
|
|
1619 | |
|
|
1620 | if (!coro_stack_alloc (&cctx->stack, cctx_stacksize)) |
705 | } |
1621 | { |
706 | else |
|
|
707 | #endif |
|
|
708 | { |
|
|
709 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
710 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
711 | |
|
|
712 | if (!cctx->sptr) |
|
|
713 | { |
|
|
714 | perror ("FATAL: unable to allocate stack for coroutine"); |
1622 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
715 | _exit (EXIT_FAILURE); |
1623 | _exit (EXIT_FAILURE); |
716 | } |
|
|
717 | |
|
|
718 | stack_start = cctx->sptr; |
|
|
719 | stack_size = cctx->ssize; |
|
|
720 | } |
1624 | } |
721 | |
1625 | |
722 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
723 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1626 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze); |
724 | |
1627 | |
725 | return cctx; |
1628 | return cctx; |
726 | } |
1629 | } |
727 | |
1630 | |
728 | static void |
1631 | static void |
729 | cctx_destroy (coro_cctx *cctx) |
1632 | cctx_destroy (coro_cctx *cctx) |
730 | { |
1633 | { |
731 | if (!cctx) |
1634 | if (!cctx) |
732 | return; |
1635 | return; |
733 | |
1636 | |
|
|
1637 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1638 | |
734 | --cctx_count; |
1639 | --cctx_count; |
|
|
1640 | coro_destroy (&cctx->cctx); |
735 | |
1641 | |
736 | #if CORO_USE_VALGRIND |
1642 | coro_stack_free (&cctx->stack); |
737 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | #if HAVE_MMAP |
|
|
741 | if (cctx->mapped) |
|
|
742 | munmap (cctx->sptr, cctx->ssize); |
|
|
743 | else |
|
|
744 | #endif |
|
|
745 | Safefree (cctx->sptr); |
|
|
746 | |
1643 | |
747 | Safefree (cctx); |
1644 | Safefree (cctx); |
748 | } |
1645 | } |
|
|
1646 | |
|
|
1647 | /* wether this cctx should be destructed */ |
|
|
1648 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
749 | |
1649 | |
750 | static coro_cctx * |
1650 | static coro_cctx * |
751 | cctx_get (pTHX) |
1651 | cctx_get (pTHX) |
752 | { |
1652 | { |
753 | while (cctx_first) |
1653 | while (ecb_expect_true (cctx_first)) |
754 | { |
1654 | { |
755 | coro_cctx *cctx = cctx_first; |
1655 | coro_cctx *cctx = cctx_first; |
756 | cctx_first = cctx->next; |
1656 | cctx_first = cctx->next; |
757 | --cctx_idle; |
1657 | --cctx_idle; |
758 | |
1658 | |
759 | if (cctx->ssize >= coro_stacksize) |
1659 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
760 | return cctx; |
1660 | return cctx; |
761 | |
1661 | |
762 | cctx_destroy (cctx); |
1662 | cctx_destroy (cctx); |
763 | } |
1663 | } |
764 | |
1664 | |
765 | PL_op = PL_op->op_next; |
|
|
766 | return cctx_new (); |
1665 | return cctx_new_run (); |
767 | } |
1666 | } |
768 | |
1667 | |
769 | static void |
1668 | static void |
770 | cctx_put (coro_cctx *cctx) |
1669 | cctx_put (coro_cctx *cctx) |
771 | { |
1670 | { |
|
|
1671 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr)); |
|
|
1672 | |
772 | /* free another cctx if overlimit */ |
1673 | /* free another cctx if overlimit */ |
773 | if (cctx_idle >= MAX_IDLE_CCTX) |
1674 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
774 | { |
1675 | { |
775 | coro_cctx *first = cctx_first; |
1676 | coro_cctx *first = cctx_first; |
776 | cctx_first = first->next; |
1677 | cctx_first = first->next; |
777 | --cctx_idle; |
1678 | --cctx_idle; |
778 | |
1679 | |
779 | assert (!first->inuse); |
|
|
780 | cctx_destroy (first); |
1680 | cctx_destroy (first); |
781 | } |
1681 | } |
782 | |
1682 | |
783 | ++cctx_idle; |
1683 | ++cctx_idle; |
784 | cctx->next = cctx_first; |
1684 | cctx->next = cctx_first; |
785 | cctx_first = cctx; |
1685 | cctx_first = cctx; |
786 | } |
1686 | } |
787 | |
1687 | |
788 | /** coroutine switching *****************************************************/ |
1688 | /** coroutine switching *****************************************************/ |
789 | |
1689 | |
790 | /* never call directly, always through the coro_state_transfer global variable */ |
1690 | static void |
791 | static void NOINLINE |
|
|
792 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1691 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1692 | { |
|
|
1693 | /* TODO: throwing up here is considered harmful */ |
|
|
1694 | |
|
|
1695 | if (ecb_expect_true (prev != next)) |
|
|
1696 | { |
|
|
1697 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1698 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
|
|
1699 | |
|
|
1700 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1701 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
|
|
1702 | |
|
|
1703 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1704 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1705 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1706 | #endif |
|
|
1707 | } |
|
|
1708 | } |
|
|
1709 | |
|
|
1710 | /* always use the TRANSFER macro */ |
|
|
1711 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
|
|
1712 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
793 | { |
1713 | { |
794 | dSTACKLEVEL; |
1714 | dSTACKLEVEL; |
795 | |
1715 | |
796 | /* sometimes transfer is only called to set idle_sp */ |
1716 | /* sometimes transfer is only called to set idle_sp */ |
797 | if (!next) |
1717 | if (ecb_expect_false (!prev)) |
798 | { |
1718 | { |
799 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1719 | cctx_current->idle_sp = STACKLEVEL; |
800 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1720 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
801 | } |
|
|
802 | else if (prev != next) |
|
|
803 | { |
1721 | } |
|
|
1722 | else if (ecb_expect_true (prev != next)) |
|
|
1723 | { |
804 | coro_cctx *prev__cctx; |
1724 | coro_cctx *cctx_prev; |
805 | |
1725 | |
806 | if (prev->flags & CF_NEW) |
1726 | if (ecb_expect_false (prev->flags & CF_NEW)) |
807 | { |
1727 | { |
808 | /* create a new empty context */ |
1728 | /* create a new empty/source context */ |
809 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
810 | prev->cctx->inuse = 1; |
|
|
811 | prev->flags &= ~CF_NEW; |
1729 | prev->flags &= ~CF_NEW; |
812 | prev->flags |= CF_RUNNING; |
1730 | prev->flags |= CF_RUNNING; |
813 | } |
1731 | } |
814 | |
1732 | |
815 | /*TODO: must not croak here */ |
|
|
816 | if (!prev->flags & CF_RUNNING) |
|
|
817 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
818 | |
|
|
819 | if (next->flags & CF_RUNNING) |
|
|
820 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
821 | |
|
|
822 | if (next->flags & CF_DESTROYED) |
|
|
823 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
824 | |
|
|
825 | prev->flags &= ~CF_RUNNING; |
1733 | prev->flags &= ~CF_RUNNING; |
826 | next->flags |= CF_RUNNING; |
1734 | next->flags |= CF_RUNNING; |
827 | |
1735 | |
828 | LOCK; |
1736 | /* first get rid of the old state */ |
|
|
1737 | save_perl (aTHX_ prev); |
829 | |
1738 | |
830 | if (next->flags & CF_NEW) |
1739 | if (ecb_expect_false (next->flags & CF_NEW)) |
831 | { |
1740 | { |
832 | /* need to start coroutine */ |
1741 | /* need to start coroutine */ |
833 | next->flags &= ~CF_NEW; |
1742 | next->flags &= ~CF_NEW; |
834 | /* first get rid of the old state */ |
|
|
835 | save_perl (aTHX_ prev); |
|
|
836 | /* setup coroutine call */ |
1743 | /* setup coroutine call */ |
837 | setup_coro (aTHX_ next); |
1744 | init_perl (aTHX_ next); |
838 | /* need a new stack */ |
|
|
839 | assert (!next->cctx); |
|
|
840 | } |
1745 | } |
841 | else |
1746 | else |
|
|
1747 | load_perl (aTHX_ next); |
|
|
1748 | |
|
|
1749 | /* possibly untie and reuse the cctx */ |
|
|
1750 | if (ecb_expect_true ( |
|
|
1751 | cctx_current->idle_sp == STACKLEVEL |
|
|
1752 | && !(cctx_current->flags & CC_TRACE) |
|
|
1753 | && !force_cctx |
|
|
1754 | )) |
842 | { |
1755 | { |
843 | /* coroutine already started */ |
1756 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
844 | save_perl (aTHX_ prev); |
1757 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
845 | load_perl (aTHX_ next); |
1758 | |
|
|
1759 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1760 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1761 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1762 | if (ecb_expect_true (!next->cctx)) |
|
|
1763 | next->cctx = cctx_get (aTHX); |
|
|
1764 | |
|
|
1765 | cctx_put (cctx_current); |
846 | } |
1766 | } |
|
|
1767 | else |
|
|
1768 | prev->cctx = cctx_current; |
847 | |
1769 | |
848 | prev__cctx = prev->cctx; |
1770 | ++next->usecount; |
849 | |
1771 | |
850 | /* possibly "free" the cctx */ |
1772 | cctx_prev = cctx_current; |
851 | if (prev__cctx->idle_sp == STACKLEVEL) |
1773 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1774 | |
|
|
1775 | next->cctx = 0; |
|
|
1776 | |
|
|
1777 | if (ecb_expect_false (cctx_prev != cctx_current)) |
852 | { |
1778 | { |
853 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1779 | cctx_prev->top_env = PL_top_env; |
854 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1780 | PL_top_env = cctx_current->top_env; |
855 | |
1781 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
856 | prev->cctx = 0; |
|
|
857 | |
|
|
858 | cctx_put (prev__cctx); |
|
|
859 | prev__cctx->inuse = 0; |
|
|
860 | } |
1782 | } |
861 | |
1783 | |
862 | if (!next->cctx) |
1784 | transfer_tail (aTHX); |
863 | { |
|
|
864 | next->cctx = cctx_get (aTHX); |
|
|
865 | assert (!next->cctx->inuse); |
|
|
866 | next->cctx->inuse = 1; |
|
|
867 | } |
|
|
868 | |
|
|
869 | if (prev__cctx != next->cctx) |
|
|
870 | { |
|
|
871 | prev__cctx->top_env = PL_top_env; |
|
|
872 | PL_top_env = next->cctx->top_env; |
|
|
873 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
874 | } |
|
|
875 | |
|
|
876 | free_coro_mortal (aTHX); |
|
|
877 | UNLOCK; |
|
|
878 | } |
1785 | } |
879 | } |
1786 | } |
880 | |
1787 | |
881 | struct transfer_args |
1788 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
882 | { |
|
|
883 | struct coro *prev, *next; |
|
|
884 | }; |
|
|
885 | |
|
|
886 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1789 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
887 | |
1790 | |
888 | /** high level stuff ********************************************************/ |
1791 | /** high level stuff ********************************************************/ |
889 | |
1792 | |
|
|
1793 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1794 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
890 | static int |
1795 | static void |
|
|
1796 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1797 | |
|
|
1798 | static void |
891 | coro_state_destroy (pTHX_ struct coro *coro) |
1799 | coro_state_destroy (pTHX_ struct coro *coro) |
892 | { |
1800 | { |
893 | if (coro->flags & CF_DESTROYED) |
1801 | if (coro->flags & CF_ZOMBIE) |
894 | return 0; |
1802 | return; |
895 | |
1803 | |
|
|
1804 | slf_destroy (aTHX_ coro); |
|
|
1805 | |
896 | coro->flags |= CF_DESTROYED; |
1806 | coro->flags |= CF_ZOMBIE; |
897 | |
1807 | |
898 | if (coro->flags & CF_READY) |
1808 | if (coro->flags & CF_READY) |
899 | { |
1809 | { |
900 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1810 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
901 | /* alternative: look through all ready queues and remove the coro */ |
1811 | /* alternative: look through all ready queues and remove the coro */ |
902 | LOCK; |
|
|
903 | --coro_nready; |
1812 | --coro_nready; |
904 | UNLOCK; |
|
|
905 | } |
1813 | } |
906 | else |
1814 | else |
907 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1815 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
908 | |
|
|
909 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
910 | { |
|
|
911 | struct coro temp; |
|
|
912 | |
|
|
913 | assert (!(coro->flags & CF_RUNNING)); |
|
|
914 | |
|
|
915 | Zero (&temp, 1, struct coro); |
|
|
916 | temp.save = CORO_SAVE_ALL; |
|
|
917 | |
|
|
918 | if (coro->flags & CF_RUNNING) |
|
|
919 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
920 | |
|
|
921 | save_perl (aTHX_ &temp); |
|
|
922 | load_perl (aTHX_ coro); |
|
|
923 | |
|
|
924 | coro_destroy_stacks (aTHX); |
|
|
925 | |
|
|
926 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
|
|
927 | |
|
|
928 | coro->mainstack = 0; |
|
|
929 | } |
|
|
930 | |
|
|
931 | cctx_destroy (coro->cctx); |
|
|
932 | SvREFCNT_dec (coro->args); |
|
|
933 | |
1816 | |
934 | if (coro->next) coro->next->prev = coro->prev; |
1817 | if (coro->next) coro->next->prev = coro->prev; |
935 | if (coro->prev) coro->prev->next = coro->next; |
1818 | if (coro->prev) coro->prev->next = coro->next; |
936 | if (coro == coro_first) coro_first = coro->next; |
1819 | if (coro == coro_first) coro_first = coro->next; |
937 | |
1820 | |
938 | return 1; |
1821 | if (coro->mainstack |
|
|
1822 | && coro->mainstack != main_mainstack |
|
|
1823 | && coro->slot |
|
|
1824 | && !PL_dirty) |
|
|
1825 | destroy_perl (aTHX_ coro); |
|
|
1826 | |
|
|
1827 | cctx_destroy (coro->cctx); |
|
|
1828 | SvREFCNT_dec (coro->startcv); |
|
|
1829 | SvREFCNT_dec (coro->args); |
|
|
1830 | SvREFCNT_dec (coro->swap_sv); |
|
|
1831 | SvREFCNT_dec (CORO_THROW); |
|
|
1832 | |
|
|
1833 | coro_call_on_destroy (aTHX_ coro); |
|
|
1834 | |
|
|
1835 | /* more destruction mayhem in coro_state_free */ |
939 | } |
1836 | } |
940 | |
1837 | |
941 | static int |
1838 | static int |
942 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1839 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
943 | { |
1840 | { |
944 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1841 | struct coro *coro = (struct coro *)mg->mg_ptr; |
945 | mg->mg_ptr = 0; |
1842 | mg->mg_ptr = 0; |
946 | |
1843 | |
947 | coro->hv = 0; |
|
|
948 | |
|
|
949 | if (--coro->refcnt < 0) |
|
|
950 | { |
|
|
951 | coro_state_destroy (aTHX_ coro); |
1844 | coro_state_destroy (aTHX_ coro); |
|
|
1845 | SvREFCNT_dec (coro->on_destroy); |
|
|
1846 | SvREFCNT_dec (coro->status); |
|
|
1847 | |
952 | Safefree (coro); |
1848 | Safefree (coro); |
953 | } |
|
|
954 | |
1849 | |
955 | return 0; |
1850 | return 0; |
956 | } |
1851 | } |
957 | |
1852 | |
958 | static int |
1853 | static int ecb_cold |
959 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1854 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
960 | { |
1855 | { |
961 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1856 | /* called when perl clones the current process the slow way (windows process emulation) */ |
962 | |
1857 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
963 | ++coro->refcnt; |
1858 | mg->mg_ptr = 0; |
|
|
1859 | mg->mg_virtual = 0; |
964 | |
1860 | |
965 | return 0; |
1861 | return 0; |
966 | } |
1862 | } |
967 | |
1863 | |
968 | static MGVTBL coro_state_vtbl = { |
1864 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
974 | #else |
1870 | #else |
975 | # define MGf_DUP 0 |
1871 | # define MGf_DUP 0 |
976 | #endif |
1872 | #endif |
977 | }; |
1873 | }; |
978 | |
1874 | |
979 | static struct coro * |
|
|
980 | SvSTATE_ (pTHX_ SV *coro) |
|
|
981 | { |
|
|
982 | HV *stash; |
|
|
983 | MAGIC *mg; |
|
|
984 | |
|
|
985 | if (SvROK (coro)) |
|
|
986 | coro = SvRV (coro); |
|
|
987 | |
|
|
988 | stash = SvSTASH (coro); |
|
|
989 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
990 | { |
|
|
991 | /* very slow, but rare, check */ |
|
|
992 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
993 | croak ("Coro::State object required"); |
|
|
994 | } |
|
|
995 | |
|
|
996 | mg = CORO_MAGIC (coro); |
|
|
997 | return (struct coro *)mg->mg_ptr; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
1001 | |
|
|
1002 | static void |
1875 | static void |
1003 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1876 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1004 | { |
1877 | { |
1005 | ta->prev = SvSTATE (prev_sv); |
1878 | ta->prev = SvSTATE (prev_sv); |
1006 | ta->next = SvSTATE (next_sv); |
1879 | ta->next = SvSTATE (next_sv); |
|
|
1880 | TRANSFER_CHECK (*ta); |
1007 | } |
1881 | } |
1008 | |
1882 | |
1009 | static void |
1883 | static void |
1010 | api_transfer (SV *prev_sv, SV *next_sv) |
1884 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
|
|
1885 | { |
|
|
1886 | struct coro_transfer_args ta; |
|
|
1887 | |
|
|
1888 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1889 | TRANSFER (ta, 1); |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | /** Coro ********************************************************************/ |
|
|
1893 | |
|
|
1894 | ecb_inline void |
|
|
1895 | coro_enq (pTHX_ struct coro *coro) |
|
|
1896 | { |
|
|
1897 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1898 | |
|
|
1899 | SvREFCNT_inc_NN (coro->hv); |
|
|
1900 | |
|
|
1901 | coro->next_ready = 0; |
|
|
1902 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1903 | ready [1] = coro; |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | ecb_inline struct coro * |
|
|
1907 | coro_deq (pTHX) |
|
|
1908 | { |
|
|
1909 | int prio; |
|
|
1910 | |
|
|
1911 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1912 | { |
|
|
1913 | struct coro **ready = coro_ready [prio]; |
|
|
1914 | |
|
|
1915 | if (ready [0]) |
|
|
1916 | { |
|
|
1917 | struct coro *coro = ready [0]; |
|
|
1918 | ready [0] = coro->next_ready; |
|
|
1919 | return coro; |
|
|
1920 | } |
|
|
1921 | } |
|
|
1922 | |
|
|
1923 | return 0; |
|
|
1924 | } |
|
|
1925 | |
|
|
1926 | static void |
|
|
1927 | invoke_sv_ready_hook_helper (void) |
1011 | { |
1928 | { |
1012 | dTHX; |
1929 | dTHX; |
1013 | struct transfer_args ta; |
1930 | dSP; |
1014 | |
1931 | |
1015 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1932 | ENTER; |
1016 | TRANSFER (ta); |
1933 | SAVETMPS; |
|
|
1934 | |
|
|
1935 | PUSHMARK (SP); |
|
|
1936 | PUTBACK; |
|
|
1937 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1938 | |
|
|
1939 | FREETMPS; |
|
|
1940 | LEAVE; |
1017 | } |
1941 | } |
1018 | |
1942 | |
1019 | static int |
1943 | static int |
1020 | api_save (SV *coro_sv, int new_save) |
1944 | api_ready (pTHX_ SV *coro_sv) |
1021 | { |
1945 | { |
1022 | dTHX; |
|
|
1023 | struct coro *coro = SvSTATE (coro_sv); |
1946 | struct coro *coro = SvSTATE (coro_sv); |
1024 | int old_save = coro->save; |
|
|
1025 | |
|
|
1026 | if (new_save >= 0) |
|
|
1027 | coro->save = new_save; |
|
|
1028 | |
|
|
1029 | return old_save; |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | /** Coro ********************************************************************/ |
|
|
1033 | |
|
|
1034 | static void |
|
|
1035 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1036 | { |
|
|
1037 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1038 | } |
|
|
1039 | |
|
|
1040 | static SV * |
|
|
1041 | coro_deq (pTHX_ int min_prio) |
|
|
1042 | { |
|
|
1043 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
1044 | |
|
|
1045 | min_prio -= PRIO_MIN; |
|
|
1046 | if (min_prio < 0) |
|
|
1047 | min_prio = 0; |
|
|
1048 | |
|
|
1049 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
1050 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1051 | return av_shift (coro_ready [prio]); |
|
|
1052 | |
|
|
1053 | return 0; |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | static int |
|
|
1057 | api_ready (SV *coro_sv) |
|
|
1058 | { |
|
|
1059 | dTHX; |
|
|
1060 | struct coro *coro; |
|
|
1061 | |
|
|
1062 | if (SvROK (coro_sv)) |
|
|
1063 | coro_sv = SvRV (coro_sv); |
|
|
1064 | |
|
|
1065 | coro = SvSTATE (coro_sv); |
|
|
1066 | |
1947 | |
1067 | if (coro->flags & CF_READY) |
1948 | if (coro->flags & CF_READY) |
1068 | return 0; |
1949 | return 0; |
1069 | |
1950 | |
1070 | coro->flags |= CF_READY; |
1951 | coro->flags |= CF_READY; |
1071 | |
1952 | |
1072 | LOCK; |
1953 | coro_enq (aTHX_ coro); |
1073 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1954 | |
1074 | ++coro_nready; |
1955 | if (!coro_nready++) |
1075 | UNLOCK; |
1956 | if (coroapi.readyhook) |
|
|
1957 | coroapi.readyhook (); |
1076 | |
1958 | |
1077 | return 1; |
1959 | return 1; |
1078 | } |
1960 | } |
1079 | |
1961 | |
1080 | static int |
1962 | static int |
1081 | api_is_ready (SV *coro_sv) |
1963 | api_is_ready (pTHX_ SV *coro_sv) |
1082 | { |
1964 | { |
1083 | dTHX; |
|
|
1084 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1965 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1085 | } |
1966 | } |
1086 | |
1967 | |
|
|
1968 | /* expects to own a reference to next->hv */ |
|
|
1969 | ecb_inline void |
|
|
1970 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1971 | { |
|
|
1972 | SV *prev_sv = SvRV (coro_current); |
|
|
1973 | |
|
|
1974 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1975 | ta->next = next; |
|
|
1976 | |
|
|
1977 | TRANSFER_CHECK (*ta); |
|
|
1978 | |
|
|
1979 | SvRV_set (coro_current, (SV *)next->hv); |
|
|
1980 | |
|
|
1981 | free_coro_mortal (aTHX); |
|
|
1982 | coro_mortal = prev_sv; |
|
|
1983 | } |
|
|
1984 | |
1087 | static void |
1985 | static void |
1088 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1986 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1089 | { |
1987 | { |
1090 | SV *prev_sv, *next_sv; |
|
|
1091 | |
|
|
1092 | for (;;) |
1988 | for (;;) |
1093 | { |
1989 | { |
1094 | LOCK; |
1990 | struct coro *next = coro_deq (aTHX); |
1095 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1096 | |
1991 | |
|
|
1992 | if (ecb_expect_true (next)) |
|
|
1993 | { |
|
|
1994 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1995 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1996 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1997 | else |
|
|
1998 | { |
|
|
1999 | next->flags &= ~CF_READY; |
|
|
2000 | --coro_nready; |
|
|
2001 | |
|
|
2002 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2003 | break; |
|
|
2004 | } |
|
|
2005 | } |
|
|
2006 | else |
|
|
2007 | { |
1097 | /* nothing to schedule: call the idle handler */ |
2008 | /* nothing to schedule: call the idle handler */ |
1098 | if (!next_sv) |
2009 | if (SvROK (sv_idle) |
|
|
2010 | && SvOBJECT (SvRV (sv_idle))) |
|
|
2011 | { |
|
|
2012 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
2013 | { |
|
|
2014 | require_pv ("Carp"); |
|
|
2015 | |
|
|
2016 | { |
|
|
2017 | dSP; |
|
|
2018 | |
|
|
2019 | ENTER; |
|
|
2020 | SAVETMPS; |
|
|
2021 | |
|
|
2022 | PUSHMARK (SP); |
|
|
2023 | XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0))); |
|
|
2024 | PUTBACK; |
|
|
2025 | call_pv ("Carp::confess", G_VOID | G_DISCARD); |
|
|
2026 | |
|
|
2027 | FREETMPS; |
|
|
2028 | LEAVE; |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
2033 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
2034 | --coro_nready; |
|
|
2035 | } |
|
|
2036 | else |
|
|
2037 | { |
|
|
2038 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
2039 | dSP; |
|
|
2040 | |
|
|
2041 | ENTER; |
|
|
2042 | SAVETMPS; |
|
|
2043 | |
|
|
2044 | PUSHMARK (SP); |
|
|
2045 | PUTBACK; |
|
|
2046 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
2047 | |
|
|
2048 | FREETMPS; |
|
|
2049 | LEAVE; |
|
|
2050 | } |
|
|
2051 | } |
|
|
2052 | } |
|
|
2053 | } |
|
|
2054 | |
|
|
2055 | ecb_inline void |
|
|
2056 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
|
|
2057 | { |
|
|
2058 | api_ready (aTHX_ coro_current); |
|
|
2059 | prepare_schedule (aTHX_ ta); |
|
|
2060 | } |
|
|
2061 | |
|
|
2062 | ecb_inline void |
|
|
2063 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
2064 | { |
|
|
2065 | SV *prev = SvRV (coro_current); |
|
|
2066 | |
|
|
2067 | if (coro_nready) |
|
|
2068 | { |
|
|
2069 | prepare_schedule (aTHX_ ta); |
|
|
2070 | api_ready (aTHX_ prev); |
|
|
2071 | } |
|
|
2072 | else |
|
|
2073 | prepare_nop (aTHX_ ta); |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | static void |
|
|
2077 | api_schedule (pTHX) |
|
|
2078 | { |
|
|
2079 | struct coro_transfer_args ta; |
|
|
2080 | |
|
|
2081 | prepare_schedule (aTHX_ &ta); |
|
|
2082 | TRANSFER (ta, 1); |
|
|
2083 | } |
|
|
2084 | |
|
|
2085 | static void |
|
|
2086 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
2087 | { |
|
|
2088 | struct coro_transfer_args ta; |
|
|
2089 | struct coro *next = SvSTATE (coro_sv); |
|
|
2090 | |
|
|
2091 | SvREFCNT_inc_NN (coro_sv); |
|
|
2092 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2093 | } |
|
|
2094 | |
|
|
2095 | static int |
|
|
2096 | api_cede (pTHX) |
|
|
2097 | { |
|
|
2098 | struct coro_transfer_args ta; |
|
|
2099 | |
|
|
2100 | prepare_cede (aTHX_ &ta); |
|
|
2101 | |
|
|
2102 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
2103 | { |
|
|
2104 | TRANSFER (ta, 1); |
|
|
2105 | return 1; |
|
|
2106 | } |
|
|
2107 | else |
|
|
2108 | return 0; |
|
|
2109 | } |
|
|
2110 | |
|
|
2111 | static int |
|
|
2112 | api_cede_notself (pTHX) |
|
|
2113 | { |
|
|
2114 | if (coro_nready) |
|
|
2115 | { |
|
|
2116 | struct coro_transfer_args ta; |
|
|
2117 | |
|
|
2118 | prepare_cede_notself (aTHX_ &ta); |
|
|
2119 | TRANSFER (ta, 1); |
|
|
2120 | return 1; |
|
|
2121 | } |
|
|
2122 | else |
|
|
2123 | return 0; |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | static void |
|
|
2127 | api_trace (pTHX_ SV *coro_sv, int flags) |
|
|
2128 | { |
|
|
2129 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2130 | |
|
|
2131 | if (coro->flags & CF_RUNNING) |
|
|
2132 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2133 | |
|
|
2134 | if (flags & CC_TRACE) |
|
|
2135 | { |
|
|
2136 | if (!coro->cctx) |
|
|
2137 | coro->cctx = cctx_new_run (); |
|
|
2138 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
2139 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
|
|
2140 | |
|
|
2141 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
2142 | } |
|
|
2143 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
2144 | { |
|
|
2145 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
2146 | |
|
|
2147 | if (coro->flags & CF_RUNNING) |
|
|
2148 | PL_runops = RUNOPS_DEFAULT; |
|
|
2149 | else |
|
|
2150 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
2151 | } |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | static void |
|
|
2155 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2156 | { |
|
|
2157 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2158 | { |
|
|
2159 | dSP; |
|
|
2160 | |
|
|
2161 | if (gimme_v == G_SCALAR) |
|
|
2162 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2163 | else |
|
|
2164 | { |
|
|
2165 | int i; |
|
|
2166 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2167 | |
|
|
2168 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2169 | PUSHs (AvARRAY (av)[i]); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | PUTBACK; |
|
|
2173 | } |
|
|
2174 | } |
|
|
2175 | |
|
|
2176 | static void |
|
|
2177 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2178 | { |
|
|
2179 | if (!coro->on_destroy) |
|
|
2180 | coro->on_destroy = newAV (); |
|
|
2181 | |
|
|
2182 | av_push (coro->on_destroy, cb); |
|
|
2183 | } |
|
|
2184 | |
|
|
2185 | static void |
|
|
2186 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2187 | { |
|
|
2188 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | static int |
|
|
2192 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2193 | { |
|
|
2194 | struct coro *coro = (struct coro *)frame->data; |
|
|
2195 | |
|
|
2196 | if (!coro->status) |
|
|
2197 | return 1; |
|
|
2198 | |
|
|
2199 | frame->destroy = 0; |
|
|
2200 | |
|
|
2201 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2202 | |
|
|
2203 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2204 | |
|
|
2205 | return 0; |
|
|
2206 | } |
|
|
2207 | |
|
|
2208 | static void |
|
|
2209 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2210 | { |
|
|
2211 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2212 | |
|
|
2213 | if (items > 1) |
|
|
2214 | croak ("join called with too many arguments"); |
|
|
2215 | |
|
|
2216 | if (coro->status) |
|
|
2217 | frame->prepare = prepare_nop; |
|
|
2218 | else |
|
|
2219 | { |
|
|
2220 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2221 | frame->prepare = prepare_schedule; |
|
|
2222 | } |
|
|
2223 | |
|
|
2224 | frame->check = slf_check_join; |
|
|
2225 | frame->destroy = slf_destroy_join; |
|
|
2226 | frame->data = (void *)coro; |
|
|
2227 | SvREFCNT_inc (coro->hv); |
|
|
2228 | } |
|
|
2229 | |
|
|
2230 | static void |
|
|
2231 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2232 | { |
|
|
2233 | AV *od = coro->on_destroy; |
|
|
2234 | |
|
|
2235 | if (!od) |
|
|
2236 | return; |
|
|
2237 | |
|
|
2238 | coro->on_destroy = 0; |
|
|
2239 | sv_2mortal ((SV *)od); |
|
|
2240 | |
|
|
2241 | while (AvFILLp (od) >= 0) |
|
|
2242 | { |
|
|
2243 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2244 | |
|
|
2245 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2246 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2247 | api_ready (aTHX_ cb); |
|
|
2248 | else |
|
|
2249 | { |
|
|
2250 | dSP; /* don't disturb outer sp */ |
|
|
2251 | PUSHMARK (SP); |
|
|
2252 | |
|
|
2253 | if (coro->status) |
|
|
2254 | { |
|
|
2255 | PUTBACK; |
|
|
2256 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2257 | SPAGAIN; |
|
|
2258 | } |
|
|
2259 | |
|
|
2260 | PUTBACK; |
|
|
2261 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2262 | } |
|
|
2263 | } |
|
|
2264 | } |
|
|
2265 | |
|
|
2266 | static void |
|
|
2267 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2268 | { |
|
|
2269 | AV *av; |
|
|
2270 | |
|
|
2271 | if (coro->status) |
|
|
2272 | { |
|
|
2273 | av = coro->status; |
|
|
2274 | av_clear (av); |
|
|
2275 | } |
|
|
2276 | else |
|
|
2277 | av = coro->status = newAV (); |
|
|
2278 | |
|
|
2279 | /* items are actually not so common, so optimise for this case */ |
|
|
2280 | if (items) |
|
|
2281 | { |
|
|
2282 | int i; |
|
|
2283 | |
|
|
2284 | av_extend (av, items - 1); |
|
|
2285 | |
|
|
2286 | for (i = 0; i < items; ++i) |
|
|
2287 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2288 | } |
|
|
2289 | } |
|
|
2290 | |
|
|
2291 | static void |
|
|
2292 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2293 | { |
|
|
2294 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2295 | api_ready (aTHX_ sv_manager); |
|
|
2296 | |
|
|
2297 | frame->prepare = prepare_schedule; |
|
|
2298 | frame->check = slf_check_repeat; |
|
|
2299 | |
|
|
2300 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2301 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2302 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2303 | } |
|
|
2304 | |
|
|
2305 | static void |
|
|
2306 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2307 | { |
|
|
2308 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2309 | |
|
|
2310 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2311 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2312 | } |
|
|
2313 | |
|
|
2314 | static void |
|
|
2315 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2316 | { |
|
|
2317 | HV *coro_hv; |
|
|
2318 | struct coro *coro; |
|
|
2319 | |
|
|
2320 | if (items <= 0) |
|
|
2321 | croak ("Coro::cancel called without coro object,"); |
|
|
2322 | |
|
|
2323 | coro = SvSTATE (arg [0]); |
|
|
2324 | coro_hv = coro->hv; |
|
|
2325 | |
|
|
2326 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2327 | |
|
|
2328 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2329 | { |
|
|
2330 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2331 | coro->slf_frame.data = (void *)coro; |
|
|
2332 | |
|
|
2333 | frame->prepare = prepare_nop; |
|
|
2334 | frame->check = slf_check_nop; |
|
|
2335 | } |
|
|
2336 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2337 | { |
|
|
2338 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2339 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2340 | } |
|
|
2341 | else |
|
|
2342 | { |
|
|
2343 | struct coro *self = SvSTATE_current; |
|
|
2344 | |
|
|
2345 | if (!self) |
|
|
2346 | croak ("Coro::cancel called outside of thread content,"); |
|
|
2347 | |
|
|
2348 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2349 | * unfortunately, this requires some magic trickery, as |
|
|
2350 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2351 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2352 | * besides, I can't get the slow-but-safe version working... |
|
|
2353 | */ |
|
|
2354 | slf_frame.data = 0; |
|
|
2355 | self->flags |= CF_NOCANCEL; |
|
|
2356 | coro_state_destroy (aTHX_ coro); |
|
|
2357 | self->flags &= ~CF_NOCANCEL; |
|
|
2358 | |
|
|
2359 | if (slf_frame.data) |
|
|
2360 | { |
|
|
2361 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2362 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2363 | } |
|
|
2364 | else |
|
|
2365 | { |
|
|
2366 | frame->prepare = prepare_nop; |
|
|
2367 | frame->check = slf_check_nop; |
|
|
2368 | } |
|
|
2369 | } |
|
|
2370 | } |
|
|
2371 | |
|
|
2372 | static int |
|
|
2373 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2374 | { |
|
|
2375 | frame->prepare = 0; |
|
|
2376 | coro_unwind_stacks (aTHX); |
|
|
2377 | |
|
|
2378 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2379 | |
|
|
2380 | return 1; |
|
|
2381 | } |
|
|
2382 | |
|
|
2383 | static int |
|
|
2384 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2385 | { |
|
|
2386 | if (coro->cctx) |
|
|
2387 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2388 | |
|
|
2389 | if (coro->flags & CF_NEW) |
|
|
2390 | { |
|
|
2391 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2392 | coro_state_destroy (aTHX_ coro); |
|
|
2393 | } |
|
|
2394 | else |
|
|
2395 | { |
|
|
2396 | if (!coro->slf_frame.prepare) |
|
|
2397 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2398 | |
|
|
2399 | slf_destroy (aTHX_ coro); |
|
|
2400 | |
|
|
2401 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2402 | coro->slf_frame.prepare = prepare_nop; |
|
|
2403 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2404 | |
|
|
2405 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2406 | } |
|
|
2407 | |
|
|
2408 | return 1; |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | /*****************************************************************************/ |
|
|
2412 | /* async pool handler */ |
|
|
2413 | |
|
|
2414 | static int |
|
|
2415 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2416 | { |
|
|
2417 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2418 | struct coro *coro = (struct coro *)frame->data; |
|
|
2419 | |
|
|
2420 | if (!coro->invoke_cb) |
|
|
2421 | return 1; /* loop till we have invoke */ |
|
|
2422 | else |
|
|
2423 | { |
|
|
2424 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2425 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2426 | |
|
|
2427 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2428 | |
|
|
2429 | { |
|
|
2430 | dSP; |
|
|
2431 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2432 | PUTBACK; |
|
|
2433 | } |
|
|
2434 | |
|
|
2435 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2436 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2437 | coro->invoke_av = 0; |
|
|
2438 | |
|
|
2439 | return 0; |
|
|
2440 | } |
|
|
2441 | } |
|
|
2442 | |
|
|
2443 | static void |
|
|
2444 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2445 | { |
|
|
2446 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2447 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2448 | |
|
|
2449 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2450 | { |
|
|
2451 | /* subsequent iteration */ |
|
|
2452 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2453 | coro->saved_deffh = 0; |
|
|
2454 | |
|
|
2455 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2456 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2457 | { |
|
|
2458 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2459 | return; |
|
|
2460 | } |
|
|
2461 | else |
|
|
2462 | { |
|
|
2463 | av_clear (GvAV (PL_defgv)); |
|
|
2464 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2465 | |
|
|
2466 | if (ecb_expect_false (coro->swap_sv)) |
|
|
2467 | { |
|
|
2468 | swap_svs_leave (coro); |
|
|
2469 | SvREFCNT_dec_NN (coro->swap_sv); |
|
|
2470 | coro->swap_sv = 0; |
|
|
2471 | } |
|
|
2472 | |
|
|
2473 | coro->prio = 0; |
|
|
2474 | |
|
|
2475 | if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE)) |
|
|
2476 | api_trace (aTHX_ coro_current, 0); |
|
|
2477 | |
|
|
2478 | frame->prepare = prepare_schedule; |
|
|
2479 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2480 | } |
|
|
2481 | } |
|
|
2482 | else |
|
|
2483 | { |
|
|
2484 | /* first iteration, simply fall through */ |
|
|
2485 | frame->prepare = prepare_nop; |
|
|
2486 | } |
|
|
2487 | |
|
|
2488 | frame->check = slf_check_pool_handler; |
|
|
2489 | frame->data = (void *)coro; |
|
|
2490 | } |
|
|
2491 | |
|
|
2492 | /*****************************************************************************/ |
|
|
2493 | /* rouse callback */ |
|
|
2494 | |
|
|
2495 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2496 | |
|
|
2497 | static void |
|
|
2498 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2499 | { |
|
|
2500 | dXSARGS; |
|
|
2501 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2502 | |
|
|
2503 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2504 | { |
|
|
2505 | /* first call, set args */ |
|
|
2506 | SV *coro = SvRV (data); |
|
|
2507 | AV *av = newAV (); |
|
|
2508 | |
|
|
2509 | SvRV_set (data, (SV *)av); |
|
|
2510 | |
|
|
2511 | /* better take a full copy of the arguments */ |
|
|
2512 | while (items--) |
|
|
2513 | av_store (av, items, newSVsv (ST (items))); |
|
|
2514 | |
|
|
2515 | api_ready (aTHX_ coro); |
|
|
2516 | SvREFCNT_dec (coro); |
|
|
2517 | } |
|
|
2518 | |
|
|
2519 | XSRETURN_EMPTY; |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | static int |
|
|
2523 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2524 | { |
|
|
2525 | SV *data = (SV *)frame->data; |
|
|
2526 | |
|
|
2527 | if (CORO_THROW) |
|
|
2528 | return 0; |
|
|
2529 | |
|
|
2530 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2531 | return 1; |
|
|
2532 | |
|
|
2533 | /* now push all results on the stack */ |
|
|
2534 | { |
|
|
2535 | dSP; |
|
|
2536 | AV *av = (AV *)SvRV (data); |
|
|
2537 | int i; |
|
|
2538 | |
|
|
2539 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2540 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2541 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2542 | |
|
|
2543 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2544 | AvFILLp (av) = -1; |
|
|
2545 | av_undef (av); |
|
|
2546 | |
|
|
2547 | PUTBACK; |
|
|
2548 | } |
|
|
2549 | |
|
|
2550 | return 0; |
|
|
2551 | } |
|
|
2552 | |
|
|
2553 | static void |
|
|
2554 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2555 | { |
|
|
2556 | SV *cb; |
|
|
2557 | |
|
|
2558 | if (items) |
|
|
2559 | cb = arg [0]; |
|
|
2560 | else |
|
|
2561 | { |
|
|
2562 | struct coro *coro = SvSTATE_current; |
|
|
2563 | |
|
|
2564 | if (!coro->rouse_cb) |
|
|
2565 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2566 | |
|
|
2567 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2568 | coro->rouse_cb = 0; |
|
|
2569 | } |
|
|
2570 | |
|
|
2571 | if (!SvROK (cb) |
|
|
2572 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2573 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2574 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2575 | |
|
|
2576 | { |
|
|
2577 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2578 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2579 | |
|
|
2580 | frame->data = (void *)data; |
|
|
2581 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2582 | frame->check = slf_check_rouse_wait; |
|
|
2583 | } |
|
|
2584 | } |
|
|
2585 | |
|
|
2586 | static SV * |
|
|
2587 | coro_new_rouse_cb (pTHX) |
|
|
2588 | { |
|
|
2589 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2590 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2591 | SV *data = newRV_inc ((SV *)hv); |
|
|
2592 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2593 | |
|
|
2594 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2595 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2596 | |
|
|
2597 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2598 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2599 | |
|
|
2600 | return cb; |
|
|
2601 | } |
|
|
2602 | |
|
|
2603 | /*****************************************************************************/ |
|
|
2604 | /* schedule-like-function opcode (SLF) */ |
|
|
2605 | |
|
|
2606 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2607 | static const CV *slf_cv; |
|
|
2608 | static SV **slf_argv; |
|
|
2609 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2610 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2611 | |
|
|
2612 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2613 | /* recreate the stack frame as perl will on following calls */ |
|
|
2614 | /* since entersub cleared the stack */ |
|
|
2615 | static OP * |
|
|
2616 | pp_restore (pTHX) |
|
|
2617 | { |
|
|
2618 | int i; |
|
|
2619 | SV **SP = PL_stack_base + slf_ax; |
|
|
2620 | |
|
|
2621 | PUSHMARK (SP); |
|
|
2622 | |
|
|
2623 | EXTEND (SP, slf_argc + 1); |
|
|
2624 | |
|
|
2625 | for (i = 0; i < slf_argc; ++i) |
|
|
2626 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2627 | |
|
|
2628 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2629 | |
|
|
2630 | RETURNOP (slf_restore.op_first); |
|
|
2631 | } |
|
|
2632 | |
|
|
2633 | static void |
|
|
2634 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2635 | { |
|
|
2636 | SV **arg = (SV **)slf_frame.data; |
|
|
2637 | |
|
|
2638 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2639 | } |
|
|
2640 | |
|
|
2641 | static void |
|
|
2642 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2643 | { |
|
|
2644 | if (items != 2) |
|
|
2645 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2646 | |
|
|
2647 | frame->prepare = slf_prepare_transfer; |
|
|
2648 | frame->check = slf_check_nop; |
|
|
2649 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2650 | } |
|
|
2651 | |
|
|
2652 | static void |
|
|
2653 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2654 | { |
|
|
2655 | frame->prepare = prepare_schedule; |
|
|
2656 | frame->check = slf_check_nop; |
|
|
2657 | } |
|
|
2658 | |
|
|
2659 | static void |
|
|
2660 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2661 | { |
|
|
2662 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2663 | |
|
|
2664 | SvREFCNT_inc_NN (next->hv); |
|
|
2665 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2666 | } |
|
|
2667 | |
|
|
2668 | static void |
|
|
2669 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2670 | { |
|
|
2671 | if (!items) |
|
|
2672 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2673 | |
|
|
2674 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2675 | frame->prepare = slf_prepare_schedule_to; |
|
|
2676 | frame->check = slf_check_nop; |
|
|
2677 | } |
|
|
2678 | |
|
|
2679 | static void |
|
|
2680 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2681 | { |
|
|
2682 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2683 | |
|
|
2684 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2685 | } |
|
|
2686 | |
|
|
2687 | static void |
|
|
2688 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2689 | { |
|
|
2690 | frame->prepare = prepare_cede; |
|
|
2691 | frame->check = slf_check_nop; |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | static void |
|
|
2695 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2696 | { |
|
|
2697 | frame->prepare = prepare_cede_notself; |
|
|
2698 | frame->check = slf_check_nop; |
|
|
2699 | } |
|
|
2700 | |
|
|
2701 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2702 | static void |
|
|
2703 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2704 | { |
|
|
2705 | struct CoroSLF frame = coro->slf_frame; |
|
|
2706 | |
|
|
2707 | /* |
|
|
2708 | * The on_destroy below most likely is from an SLF call. |
|
|
2709 | * Since by definition the SLF call will not finish when we destroy |
|
|
2710 | * the coro, we will have to force-finish it here, otherwise |
|
|
2711 | * cleanup functions cannot call SLF functions. |
|
|
2712 | */ |
|
|
2713 | coro->slf_frame.prepare = 0; |
|
|
2714 | |
|
|
2715 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2716 | if (frame.destroy && frame.prepare && !PL_dirty) |
|
|
2717 | frame.destroy (aTHX_ &frame); |
|
|
2718 | } |
|
|
2719 | |
|
|
2720 | /* |
|
|
2721 | * these not obviously related functions are all rolled into one |
|
|
2722 | * function to increase chances that they all will call transfer with the same |
|
|
2723 | * stack offset |
|
|
2724 | * SLF stands for "schedule-like-function". |
|
|
2725 | */ |
|
|
2726 | static OP * |
|
|
2727 | pp_slf (pTHX) |
|
|
2728 | { |
|
|
2729 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2730 | |
|
|
2731 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2732 | /* the latter happens when a new coro has been started */ |
|
|
2733 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2734 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2735 | { |
|
|
2736 | /* first iteration */ |
|
|
2737 | dSP; |
|
|
2738 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2739 | int items = SP - arg; /* args without function object */ |
|
|
2740 | SV *gv = *sp; |
|
|
2741 | |
|
|
2742 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2743 | /* for us, divert to the real entersub */ |
|
|
2744 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2745 | || !GvCV (gv) |
|
|
2746 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2747 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2748 | |
|
|
2749 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2750 | { |
|
|
2751 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2752 | AV *av = GvAV (PL_defgv); |
|
|
2753 | arg = AvARRAY (av); |
|
|
2754 | items = AvFILLp (av) + 1; |
|
|
2755 | } |
|
|
2756 | |
|
|
2757 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2758 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2759 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2760 | |
|
|
2761 | /* pop args */ |
|
|
2762 | SP = PL_stack_base + POPMARK; |
|
|
2763 | |
|
|
2764 | PUTBACK; |
|
|
2765 | } |
|
|
2766 | |
|
|
2767 | /* now that we have a slf_frame, interpret it! */ |
|
|
2768 | /* we use a callback system not to make the code needlessly */ |
|
|
2769 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2770 | |
|
|
2771 | do |
|
|
2772 | { |
|
|
2773 | struct coro_transfer_args ta; |
|
|
2774 | |
|
|
2775 | slf_frame.prepare (aTHX_ &ta); |
|
|
2776 | TRANSFER (ta, 0); |
|
|
2777 | |
|
|
2778 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2779 | } |
|
|
2780 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2781 | |
|
|
2782 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2783 | |
|
|
2784 | /* exception handling */ |
|
|
2785 | if (ecb_expect_false (CORO_THROW)) |
|
|
2786 | { |
|
|
2787 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2788 | |
|
|
2789 | CORO_THROW = 0; |
|
|
2790 | sv_setsv (ERRSV, exception); |
|
|
2791 | croak (0); |
|
|
2792 | } |
|
|
2793 | |
|
|
2794 | /* return value handling - mostly like entersub */ |
|
|
2795 | /* make sure we put something on the stack in scalar context */ |
|
|
2796 | if (GIMME_V == G_SCALAR |
|
|
2797 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2798 | { |
|
|
2799 | dSP; |
|
|
2800 | SV **bot = PL_stack_base + checkmark; |
|
|
2801 | |
|
|
2802 | if (sp == bot) /* too few, push undef */ |
|
|
2803 | bot [1] = &PL_sv_undef; |
|
|
2804 | else /* too many, take last one */ |
|
|
2805 | bot [1] = *sp; |
|
|
2806 | |
|
|
2807 | SP = bot + 1; |
|
|
2808 | |
|
|
2809 | PUTBACK; |
|
|
2810 | } |
|
|
2811 | |
|
|
2812 | return NORMAL; |
|
|
2813 | } |
|
|
2814 | |
|
|
2815 | static void |
|
|
2816 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2817 | { |
|
|
2818 | int i; |
|
|
2819 | SV **arg = PL_stack_base + ax; |
|
|
2820 | int items = PL_stack_sp - arg + 1; |
|
|
2821 | |
|
|
2822 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2823 | |
|
|
2824 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2825 | && PL_op->op_ppaddr != pp_slf) |
|
|
2826 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2827 | |
|
|
2828 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2829 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2830 | slf_cv = cv; |
|
|
2831 | |
|
|
2832 | /* we patch the op, and then re-run the whole call */ |
|
|
2833 | /* we have to put the same argument on the stack for this to work */ |
|
|
2834 | /* and this will be done by pp_restore */ |
|
|
2835 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2836 | slf_restore.op_type = OP_CUSTOM; |
|
|
2837 | slf_restore.op_ppaddr = pp_restore; |
|
|
2838 | slf_restore.op_first = PL_op; |
|
|
2839 | |
|
|
2840 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2841 | |
|
|
2842 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2843 | { |
|
|
2844 | if (items > slf_arga) |
|
|
2845 | { |
|
|
2846 | slf_arga = items; |
|
|
2847 | Safefree (slf_argv); |
|
|
2848 | New (0, slf_argv, slf_arga, SV *); |
|
|
2849 | } |
|
|
2850 | |
|
|
2851 | slf_argc = items; |
|
|
2852 | |
|
|
2853 | for (i = 0; i < items; ++i) |
|
|
2854 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2855 | } |
|
|
2856 | else |
|
|
2857 | slf_argc = 0; |
|
|
2858 | |
|
|
2859 | PL_op->op_ppaddr = pp_slf; |
|
|
2860 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2861 | |
|
|
2862 | PL_op = (OP *)&slf_restore; |
|
|
2863 | } |
|
|
2864 | |
|
|
2865 | /*****************************************************************************/ |
|
|
2866 | /* dynamic wind */ |
|
|
2867 | |
|
|
2868 | static void |
|
|
2869 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2870 | { |
|
|
2871 | dSP; |
|
|
2872 | |
|
|
2873 | PUSHSTACK; |
|
|
2874 | |
|
|
2875 | PUSHMARK (SP); |
|
|
2876 | PUTBACK; |
|
|
2877 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2878 | SPAGAIN; |
|
|
2879 | |
|
|
2880 | POPSTACK; |
|
|
2881 | } |
|
|
2882 | |
|
|
2883 | static SV * |
|
|
2884 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2885 | { |
|
|
2886 | AV *av = *avp; |
|
|
2887 | SV *res = av_pop (av); |
|
|
2888 | |
|
|
2889 | if (AvFILLp (av) < 0) |
|
|
2890 | { |
|
|
2891 | *avp = 0; |
|
|
2892 | SvREFCNT_dec (av); |
|
|
2893 | } |
|
|
2894 | |
|
|
2895 | return res; |
|
|
2896 | } |
|
|
2897 | |
|
|
2898 | static void |
|
|
2899 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2900 | { |
|
|
2901 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2902 | SvREFCNT_dec (cb); |
|
|
2903 | } |
|
|
2904 | |
|
|
2905 | static void |
|
|
2906 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2907 | { |
|
|
2908 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2909 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2910 | } |
|
|
2911 | |
|
|
2912 | static void |
|
|
2913 | enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg) |
|
|
2914 | { |
|
|
2915 | if (!hook) |
|
|
2916 | return; |
|
|
2917 | |
|
|
2918 | if (!*avp) |
|
|
2919 | { |
|
|
2920 | *avp = newAV (); |
|
|
2921 | AvREAL_off (*avp); |
|
|
2922 | } |
|
|
2923 | |
|
|
2924 | av_push (*avp, (SV *)hook); |
|
|
2925 | av_push (*avp, (SV *)arg); |
|
|
2926 | } |
|
|
2927 | |
|
|
2928 | static void |
|
|
2929 | enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute) |
|
|
2930 | { |
|
|
2931 | AV *av = *avp; |
|
|
2932 | int i; |
|
|
2933 | |
|
|
2934 | if (!av) |
|
|
2935 | return; |
|
|
2936 | |
|
|
2937 | for (i = AvFILLp (av) - 1; i >= 0; i -= 2) |
|
|
2938 | if (AvARRAY (av)[i] == (SV *)hook) |
|
|
2939 | { |
|
|
2940 | if (execute) |
|
|
2941 | hook (aTHX_ (void *)AvARRAY (av)[i + 1]); |
|
|
2942 | |
|
|
2943 | memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1); |
|
|
2944 | av_pop (av); |
|
|
2945 | av_pop (av); |
|
|
2946 | break; |
|
|
2947 | } |
|
|
2948 | |
|
|
2949 | if (AvFILLp (av) >= 0) |
|
|
2950 | { |
|
|
2951 | *avp = 0; |
|
|
2952 | SvREFCNT_dec_NN (av); |
|
|
2953 | } |
|
|
2954 | } |
|
|
2955 | |
|
|
2956 | static void |
|
|
2957 | api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2958 | { |
|
|
2959 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2960 | |
|
|
2961 | if (SvSTATE_current == coro) |
|
|
2962 | if (enter) |
|
|
2963 | enter (aTHX_ enter_arg); |
|
|
2964 | |
|
|
2965 | enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg); |
|
|
2966 | enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg); |
|
|
2967 | } |
|
|
2968 | |
|
|
2969 | static void |
|
|
2970 | api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave) |
|
|
2971 | { |
|
|
2972 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2973 | |
|
|
2974 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2975 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro); |
|
|
2976 | } |
|
|
2977 | |
|
|
2978 | static void |
|
|
2979 | savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter) |
|
|
2980 | { |
|
|
2981 | struct coro *coro = SvSTATE_current; |
|
|
2982 | |
|
|
2983 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2984 | } |
|
|
2985 | |
|
|
2986 | static void |
|
|
2987 | savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave) |
|
|
2988 | { |
|
|
2989 | struct coro *coro = SvSTATE_current; |
|
|
2990 | |
|
|
2991 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1); |
|
|
2992 | } |
|
|
2993 | |
|
|
2994 | static void |
|
|
2995 | api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2996 | { |
|
|
2997 | api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg); |
|
|
2998 | |
|
|
2999 | /* this ought to be much cheaper than malloc + a single destructor call */ |
|
|
3000 | if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter); |
|
|
3001 | if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave); |
|
|
3002 | } |
|
|
3003 | |
|
|
3004 | /*****************************************************************************/ |
|
|
3005 | /* PerlIO::cede */ |
|
|
3006 | |
|
|
3007 | typedef struct |
|
|
3008 | { |
|
|
3009 | PerlIOBuf base; |
|
|
3010 | NV next, every; |
|
|
3011 | } PerlIOCede; |
|
|
3012 | |
|
|
3013 | static IV ecb_cold |
|
|
3014 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
3015 | { |
|
|
3016 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
3017 | |
|
|
3018 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
3019 | self->next = nvtime () + self->every; |
|
|
3020 | |
|
|
3021 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
3022 | } |
|
|
3023 | |
|
|
3024 | static SV * ecb_cold |
|
|
3025 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
3026 | { |
|
|
3027 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
3028 | |
|
|
3029 | return newSVnv (self->every); |
|
|
3030 | } |
|
|
3031 | |
|
|
3032 | static IV |
|
|
3033 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
3034 | { |
|
|
3035 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
3036 | double now = nvtime (); |
|
|
3037 | |
|
|
3038 | if (now >= self->next) |
|
|
3039 | { |
|
|
3040 | api_cede (aTHX); |
|
|
3041 | self->next = now + self->every; |
|
|
3042 | } |
|
|
3043 | |
|
|
3044 | return PerlIOBuf_flush (aTHX_ f); |
|
|
3045 | } |
|
|
3046 | |
|
|
3047 | static PerlIO_funcs PerlIO_cede = |
|
|
3048 | { |
|
|
3049 | sizeof(PerlIO_funcs), |
|
|
3050 | "cede", |
|
|
3051 | sizeof(PerlIOCede), |
|
|
3052 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
3053 | PerlIOCede_pushed, |
|
|
3054 | PerlIOBuf_popped, |
|
|
3055 | PerlIOBuf_open, |
|
|
3056 | PerlIOBase_binmode, |
|
|
3057 | PerlIOCede_getarg, |
|
|
3058 | PerlIOBase_fileno, |
|
|
3059 | PerlIOBuf_dup, |
|
|
3060 | PerlIOBuf_read, |
|
|
3061 | PerlIOBuf_unread, |
|
|
3062 | PerlIOBuf_write, |
|
|
3063 | PerlIOBuf_seek, |
|
|
3064 | PerlIOBuf_tell, |
|
|
3065 | PerlIOBuf_close, |
|
|
3066 | PerlIOCede_flush, |
|
|
3067 | PerlIOBuf_fill, |
|
|
3068 | PerlIOBase_eof, |
|
|
3069 | PerlIOBase_error, |
|
|
3070 | PerlIOBase_clearerr, |
|
|
3071 | PerlIOBase_setlinebuf, |
|
|
3072 | PerlIOBuf_get_base, |
|
|
3073 | PerlIOBuf_bufsiz, |
|
|
3074 | PerlIOBuf_get_ptr, |
|
|
3075 | PerlIOBuf_get_cnt, |
|
|
3076 | PerlIOBuf_set_ptrcnt, |
|
|
3077 | }; |
|
|
3078 | |
|
|
3079 | /*****************************************************************************/ |
|
|
3080 | /* Coro::Semaphore & Coro::Signal */ |
|
|
3081 | |
|
|
3082 | static SV * |
|
|
3083 | coro_waitarray_new (pTHX_ int count) |
|
|
3084 | { |
|
|
3085 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
3086 | AV *av = newAV (); |
|
|
3087 | SV **ary; |
|
|
3088 | |
|
|
3089 | /* unfortunately, building manually saves memory */ |
|
|
3090 | Newx (ary, 2, SV *); |
|
|
3091 | AvALLOC (av) = ary; |
|
|
3092 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
3093 | AvARRAY (av) = ary; |
|
|
3094 | #else |
|
|
3095 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
3096 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
3097 | SvPVX ((SV *)av) = (char *)ary; |
|
|
3098 | #endif |
|
|
3099 | AvMAX (av) = 1; |
|
|
3100 | AvFILLp (av) = 0; |
|
|
3101 | ary [0] = newSViv (count); |
|
|
3102 | |
|
|
3103 | return newRV_noinc ((SV *)av); |
|
|
3104 | } |
|
|
3105 | |
|
|
3106 | /* semaphore */ |
|
|
3107 | |
|
|
3108 | static void |
|
|
3109 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
3110 | { |
|
|
3111 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3112 | IV count = SvIVX (count_sv); |
|
|
3113 | |
|
|
3114 | count += adjust; |
|
|
3115 | SvIVX (count_sv) = count; |
|
|
3116 | |
|
|
3117 | /* now wake up as many waiters as are expected to lock */ |
|
|
3118 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3119 | { |
|
|
3120 | SV *cb; |
|
|
3121 | |
|
|
3122 | /* swap first two elements so we can shift a waiter */ |
|
|
3123 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3124 | AvARRAY (av)[1] = count_sv; |
|
|
3125 | cb = av_shift (av); |
|
|
3126 | |
|
|
3127 | if (SvOBJECT (cb)) |
|
|
3128 | { |
|
|
3129 | api_ready (aTHX_ cb); |
|
|
3130 | --count; |
|
|
3131 | } |
|
|
3132 | else if (SvTYPE (cb) == SVt_PVCV) |
1099 | { |
3133 | { |
1100 | dSP; |
3134 | dSP; |
1101 | UNLOCK; |
|
|
1102 | |
|
|
1103 | ENTER; |
|
|
1104 | SAVETMPS; |
|
|
1105 | |
|
|
1106 | PUSHMARK (SP); |
3135 | PUSHMARK (SP); |
|
|
3136 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1107 | PUTBACK; |
3137 | PUTBACK; |
1108 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
3138 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1109 | |
|
|
1110 | FREETMPS; |
|
|
1111 | LEAVE; |
|
|
1112 | continue; |
|
|
1113 | } |
3139 | } |
1114 | |
3140 | |
1115 | ta->next = SvSTATE (next_sv); |
3141 | SvREFCNT_dec_NN (cb); |
|
|
3142 | } |
|
|
3143 | } |
1116 | |
3144 | |
1117 | /* cannot transfer to destroyed coros, skip and look for next */ |
3145 | static void |
1118 | if (ta->next->flags & CF_DESTROYED) |
3146 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
3147 | { |
|
|
3148 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
3149 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
3150 | } |
|
|
3151 | |
|
|
3152 | static int |
|
|
3153 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
3154 | { |
|
|
3155 | AV *av = (AV *)frame->data; |
|
|
3156 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3157 | SV *coro_hv = SvRV (coro_current); |
|
|
3158 | |
|
|
3159 | frame->destroy = 0; |
|
|
3160 | |
|
|
3161 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
3162 | if (ecb_expect_false (CORO_THROW)) |
|
|
3163 | { |
|
|
3164 | /* we still might be responsible for the semaphore, so wake up others */ |
|
|
3165 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3166 | |
|
|
3167 | return 0; |
|
|
3168 | } |
|
|
3169 | else if (SvIVX (count_sv) > 0) |
|
|
3170 | { |
|
|
3171 | if (acquire) |
|
|
3172 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
3173 | else |
|
|
3174 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3175 | |
|
|
3176 | return 0; |
|
|
3177 | } |
|
|
3178 | else |
|
|
3179 | { |
|
|
3180 | int i; |
|
|
3181 | /* if we were woken up but can't down, we look through the whole */ |
|
|
3182 | /* waiters list and only add us if we aren't in there already */ |
|
|
3183 | /* this avoids some degenerate memory usage cases */ |
|
|
3184 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
3185 | if (AvARRAY (av)[i] == coro_hv) |
|
|
3186 | return 1; |
|
|
3187 | |
|
|
3188 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
3189 | return 1; |
|
|
3190 | } |
|
|
3191 | } |
|
|
3192 | |
|
|
3193 | static int |
|
|
3194 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
3195 | { |
|
|
3196 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
3197 | } |
|
|
3198 | |
|
|
3199 | static int |
|
|
3200 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3201 | { |
|
|
3202 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3203 | } |
|
|
3204 | |
|
|
3205 | static void |
|
|
3206 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3207 | { |
|
|
3208 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3209 | |
|
|
3210 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3211 | { |
|
|
3212 | frame->data = (void *)av; |
|
|
3213 | frame->prepare = prepare_nop; |
|
|
3214 | } |
|
|
3215 | else |
|
|
3216 | { |
|
|
3217 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3218 | |
|
|
3219 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3220 | frame->prepare = prepare_schedule; |
|
|
3221 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3222 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3223 | frame->destroy = coro_semaphore_destroy; |
|
|
3224 | } |
|
|
3225 | } |
|
|
3226 | |
|
|
3227 | static void |
|
|
3228 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3229 | { |
|
|
3230 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3231 | frame->check = slf_check_semaphore_down; |
|
|
3232 | } |
|
|
3233 | |
|
|
3234 | static void |
|
|
3235 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3236 | { |
|
|
3237 | if (items >= 2) |
|
|
3238 | { |
|
|
3239 | /* callback form */ |
|
|
3240 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3241 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3242 | |
|
|
3243 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3244 | |
|
|
3245 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3246 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3247 | |
|
|
3248 | frame->prepare = prepare_nop; |
|
|
3249 | frame->check = slf_check_nop; |
|
|
3250 | } |
|
|
3251 | else |
|
|
3252 | { |
|
|
3253 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3254 | frame->check = slf_check_semaphore_wait; |
|
|
3255 | } |
|
|
3256 | } |
|
|
3257 | |
|
|
3258 | /* signal */ |
|
|
3259 | |
|
|
3260 | static void |
|
|
3261 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3262 | { |
|
|
3263 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3264 | |
|
|
3265 | /* now signal count waiters */ |
|
|
3266 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3267 | { |
|
|
3268 | SV *cb; |
|
|
3269 | |
|
|
3270 | /* swap first two elements so we can shift a waiter */ |
|
|
3271 | cb = AvARRAY (av)[0]; |
|
|
3272 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3273 | AvARRAY (av)[1] = cb; |
|
|
3274 | |
|
|
3275 | cb = av_shift (av); |
|
|
3276 | |
|
|
3277 | if (SvTYPE (cb) == SVt_PVCV) |
1119 | { |
3278 | { |
|
|
3279 | dSP; |
|
|
3280 | PUSHMARK (SP); |
|
|
3281 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1120 | UNLOCK; |
3282 | PUTBACK; |
1121 | SvREFCNT_dec (next_sv); |
3283 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1122 | /* coro_nready is already taken care of by destroy */ |
|
|
1123 | continue; |
|
|
1124 | } |
3284 | } |
|
|
3285 | else |
|
|
3286 | { |
|
|
3287 | api_ready (aTHX_ cb); |
|
|
3288 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3289 | } |
1125 | |
3290 | |
1126 | --coro_nready; |
3291 | SvREFCNT_dec_NN (cb); |
1127 | UNLOCK; |
|
|
1128 | break; |
|
|
1129 | } |
|
|
1130 | |
3292 | |
1131 | /* free this only after the transfer */ |
3293 | --count; |
1132 | prev_sv = SvRV (coro_current); |
3294 | } |
1133 | SvRV_set (coro_current, next_sv); |
|
|
1134 | ta->prev = SvSTATE (prev_sv); |
|
|
1135 | |
|
|
1136 | assert (ta->next->flags & CF_READY); |
|
|
1137 | ta->next->flags &= ~CF_READY; |
|
|
1138 | |
|
|
1139 | LOCK; |
|
|
1140 | free_coro_mortal (aTHX); |
|
|
1141 | coro_mortal = prev_sv; |
|
|
1142 | UNLOCK; |
|
|
1143 | } |
|
|
1144 | |
|
|
1145 | static void |
|
|
1146 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1147 | { |
|
|
1148 | api_ready (coro_current); |
|
|
1149 | prepare_schedule (aTHX_ ta); |
|
|
1150 | } |
3295 | } |
1151 | |
3296 | |
1152 | static int |
3297 | static int |
1153 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
3298 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
1154 | { |
3299 | { |
1155 | if (coro_nready) |
3300 | /* if we are about to throw, also stop waiting */ |
|
|
3301 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3302 | } |
|
|
3303 | |
|
|
3304 | static void |
|
|
3305 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3306 | { |
|
|
3307 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3308 | |
|
|
3309 | if (items >= 2) |
|
|
3310 | { |
|
|
3311 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3312 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3313 | |
|
|
3314 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3315 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3316 | |
|
|
3317 | frame->prepare = prepare_nop; |
|
|
3318 | frame->check = slf_check_nop; |
1156 | { |
3319 | } |
1157 | SV *prev = SvRV (coro_current); |
3320 | else if (SvIVX (AvARRAY (av)[0])) |
1158 | prepare_schedule (aTHX_ ta); |
3321 | { |
1159 | api_ready (prev); |
3322 | SvIVX (AvARRAY (av)[0]) = 0; |
1160 | return 1; |
3323 | frame->prepare = prepare_nop; |
|
|
3324 | frame->check = slf_check_nop; |
1161 | } |
3325 | } |
1162 | else |
3326 | else |
|
|
3327 | { |
|
|
3328 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3329 | |
|
|
3330 | av_push (av, waiter); |
|
|
3331 | |
|
|
3332 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3333 | frame->prepare = prepare_schedule; |
|
|
3334 | frame->check = slf_check_signal_wait; |
|
|
3335 | } |
|
|
3336 | } |
|
|
3337 | |
|
|
3338 | /*****************************************************************************/ |
|
|
3339 | /* Coro::AIO */ |
|
|
3340 | |
|
|
3341 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3342 | |
|
|
3343 | /* helper storage struct */ |
|
|
3344 | struct io_state |
|
|
3345 | { |
|
|
3346 | int errorno; |
|
|
3347 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3348 | int laststatval; |
|
|
3349 | Stat_t statcache; |
|
|
3350 | }; |
|
|
3351 | |
|
|
3352 | static void |
|
|
3353 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3354 | { |
|
|
3355 | dXSARGS; |
|
|
3356 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3357 | SV *coro = av_pop (state); |
|
|
3358 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3359 | |
|
|
3360 | av_extend (state, items - 1); |
|
|
3361 | |
|
|
3362 | sv_upgrade (data_sv, SVt_PV); |
|
|
3363 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3364 | SvPOK_only (data_sv); |
|
|
3365 | |
|
|
3366 | { |
|
|
3367 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3368 | |
|
|
3369 | data->errorno = errno; |
|
|
3370 | data->laststype = PL_laststype; |
|
|
3371 | data->laststatval = PL_laststatval; |
|
|
3372 | data->statcache = PL_statcache; |
|
|
3373 | } |
|
|
3374 | |
|
|
3375 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3376 | { |
|
|
3377 | int i; |
|
|
3378 | |
|
|
3379 | for (i = 0; i < items; ++i) |
|
|
3380 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3381 | } |
|
|
3382 | |
|
|
3383 | av_push (state, data_sv); |
|
|
3384 | |
|
|
3385 | api_ready (aTHX_ coro); |
|
|
3386 | SvREFCNT_dec_NN (coro); |
|
|
3387 | SvREFCNT_dec_NN ((AV *)state); |
|
|
3388 | } |
|
|
3389 | |
|
|
3390 | static int |
|
|
3391 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3392 | { |
|
|
3393 | AV *state = (AV *)frame->data; |
|
|
3394 | |
|
|
3395 | /* if we are about to throw, return early */ |
|
|
3396 | /* this does not cancel the aio request, but at least */ |
|
|
3397 | /* it quickly returns */ |
|
|
3398 | if (CORO_THROW) |
1163 | return 0; |
3399 | return 0; |
1164 | } |
|
|
1165 | |
3400 | |
1166 | static void |
3401 | /* one element that is an RV? repeat! */ |
1167 | api_schedule (void) |
3402 | if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV) |
1168 | { |
|
|
1169 | dTHX; |
|
|
1170 | struct transfer_args ta; |
|
|
1171 | |
|
|
1172 | prepare_schedule (aTHX_ &ta); |
|
|
1173 | TRANSFER (ta); |
|
|
1174 | } |
|
|
1175 | |
|
|
1176 | static int |
|
|
1177 | api_cede (void) |
|
|
1178 | { |
|
|
1179 | dTHX; |
|
|
1180 | struct transfer_args ta; |
|
|
1181 | |
|
|
1182 | prepare_cede (aTHX_ &ta); |
|
|
1183 | |
|
|
1184 | if (ta.prev != ta.next) |
|
|
1185 | { |
|
|
1186 | TRANSFER (ta); |
|
|
1187 | return 1; |
3403 | return 1; |
|
|
3404 | |
|
|
3405 | /* restore status */ |
|
|
3406 | { |
|
|
3407 | SV *data_sv = av_pop (state); |
|
|
3408 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3409 | |
|
|
3410 | errno = data->errorno; |
|
|
3411 | PL_laststype = data->laststype; |
|
|
3412 | PL_laststatval = data->laststatval; |
|
|
3413 | PL_statcache = data->statcache; |
|
|
3414 | |
|
|
3415 | SvREFCNT_dec_NN (data_sv); |
1188 | } |
3416 | } |
1189 | else |
3417 | |
|
|
3418 | /* push result values */ |
|
|
3419 | { |
|
|
3420 | dSP; |
|
|
3421 | int i; |
|
|
3422 | |
|
|
3423 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3424 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3425 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3426 | |
|
|
3427 | PUTBACK; |
|
|
3428 | } |
|
|
3429 | |
1190 | return 0; |
3430 | return 0; |
1191 | } |
3431 | } |
1192 | |
3432 | |
1193 | static int |
3433 | static void |
1194 | api_cede_notself (void) |
3434 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1195 | { |
3435 | { |
1196 | dTHX; |
3436 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
1197 | struct transfer_args ta; |
3437 | SV *coro_hv = SvRV (coro_current); |
|
|
3438 | struct coro *coro = SvSTATE_hv (coro_hv); |
1198 | |
3439 | |
1199 | if (prepare_cede_notself (aTHX_ &ta)) |
3440 | /* put our coroutine id on the state arg */ |
1200 | { |
3441 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
1201 | TRANSFER (ta); |
3442 | |
1202 | return 1; |
3443 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3444 | if (coro->prio) |
1203 | } |
3445 | { |
1204 | else |
3446 | dSP; |
1205 | return 0; |
|
|
1206 | } |
|
|
1207 | |
3447 | |
|
|
3448 | static SV *prio_cv; |
|
|
3449 | static SV *prio_sv; |
|
|
3450 | |
|
|
3451 | if (ecb_expect_false (!prio_cv)) |
|
|
3452 | { |
|
|
3453 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3454 | prio_sv = newSViv (0); |
|
|
3455 | } |
|
|
3456 | |
|
|
3457 | PUSHMARK (SP); |
|
|
3458 | sv_setiv (prio_sv, coro->prio); |
|
|
3459 | XPUSHs (prio_sv); |
|
|
3460 | |
|
|
3461 | PUTBACK; |
|
|
3462 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3463 | } |
|
|
3464 | |
|
|
3465 | /* now call the original request */ |
|
|
3466 | { |
|
|
3467 | dSP; |
|
|
3468 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3469 | int i; |
|
|
3470 | |
|
|
3471 | PUSHMARK (SP); |
|
|
3472 | |
|
|
3473 | /* first push all args to the stack */ |
|
|
3474 | EXTEND (SP, items + 1); |
|
|
3475 | |
|
|
3476 | for (i = 0; i < items; ++i) |
|
|
3477 | PUSHs (arg [i]); |
|
|
3478 | |
|
|
3479 | /* now push the callback closure */ |
|
|
3480 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3481 | |
|
|
3482 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3483 | PUTBACK; |
|
|
3484 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3485 | } |
|
|
3486 | |
|
|
3487 | /* now that the request is going, we loop till we have a result */ |
|
|
3488 | frame->data = (void *)state; |
|
|
3489 | frame->prepare = prepare_schedule; |
|
|
3490 | frame->check = slf_check_aio_req; |
|
|
3491 | } |
|
|
3492 | |
|
|
3493 | static void |
|
|
3494 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3495 | { |
|
|
3496 | dXSARGS; |
|
|
3497 | |
|
|
3498 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3499 | |
|
|
3500 | XSRETURN_EMPTY; |
|
|
3501 | } |
|
|
3502 | |
|
|
3503 | /*****************************************************************************/ |
|
|
3504 | |
|
|
3505 | #if CORO_CLONE |
|
|
3506 | # include "clone.c" |
|
|
3507 | #endif |
|
|
3508 | |
|
|
3509 | /*****************************************************************************/ |
|
|
3510 | |
|
|
3511 | static SV * |
|
|
3512 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3513 | { |
|
|
3514 | SV *coro_sv; |
|
|
3515 | struct coro *coro; |
|
|
3516 | MAGIC *mg; |
|
|
3517 | HV *hv; |
|
|
3518 | SV *cb; |
|
|
3519 | int i; |
|
|
3520 | |
|
|
3521 | if (argc > 0) |
|
|
3522 | { |
|
|
3523 | cb = s_get_cv_croak (argv [0]); |
|
|
3524 | |
|
|
3525 | if (!is_coro) |
|
|
3526 | { |
|
|
3527 | if (CvISXSUB (cb)) |
|
|
3528 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3529 | |
|
|
3530 | if (!CvROOT (cb)) |
|
|
3531 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3532 | } |
|
|
3533 | } |
|
|
3534 | |
|
|
3535 | Newz (0, coro, 1, struct coro); |
|
|
3536 | coro->args = newAV (); |
|
|
3537 | coro->flags = CF_NEW; |
|
|
3538 | |
|
|
3539 | if (coro_first) coro_first->prev = coro; |
|
|
3540 | coro->next = coro_first; |
|
|
3541 | coro_first = coro; |
|
|
3542 | |
|
|
3543 | coro->hv = hv = newHV (); |
|
|
3544 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3545 | mg->mg_flags |= MGf_DUP; |
|
|
3546 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3547 | |
|
|
3548 | if (argc > 0) |
|
|
3549 | { |
|
|
3550 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3551 | |
|
|
3552 | if (is_coro) |
|
|
3553 | { |
|
|
3554 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3555 | cb = (SV *)cv_coro_run; |
|
|
3556 | } |
|
|
3557 | |
|
|
3558 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3559 | |
|
|
3560 | for (i = 1; i < argc; i++) |
|
|
3561 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3562 | } |
|
|
3563 | |
|
|
3564 | return coro_sv; |
|
|
3565 | } |
|
|
3566 | |
|
|
3567 | #ifndef __cplusplus |
|
|
3568 | ecb_cold XS(boot_Coro__State); |
|
|
3569 | #endif |
|
|
3570 | |
|
|
3571 | #if CORO_JIT |
|
|
3572 | |
|
|
3573 | static void ecb_noinline ecb_cold |
|
|
3574 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3575 | { |
|
|
3576 | dSP; |
|
|
3577 | AV *av = newAV (); |
|
|
3578 | |
|
|
3579 | av_store (av, 3, newSVuv (d)); |
|
|
3580 | av_store (av, 2, newSVuv (c)); |
|
|
3581 | av_store (av, 1, newSVuv (b)); |
|
|
3582 | av_store (av, 0, newSVuv (a)); |
|
|
3583 | |
|
|
3584 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3585 | |
|
|
3586 | PUTBACK; |
|
|
3587 | } |
|
|
3588 | |
|
|
3589 | static void ecb_noinline ecb_cold |
|
|
3590 | jit_init (pTHX) |
|
|
3591 | { |
|
|
3592 | dSP; |
|
|
3593 | SV *load, *save; |
|
|
3594 | char *map_base; |
|
|
3595 | char *load_ptr, *save_ptr; |
|
|
3596 | STRLEN load_len, save_len, map_len; |
|
|
3597 | int count; |
|
|
3598 | |
|
|
3599 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3600 | |
|
|
3601 | PUSHMARK (SP); |
|
|
3602 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3603 | #include "state.h" |
|
|
3604 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3605 | SPAGAIN; |
|
|
3606 | |
|
|
3607 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3608 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3609 | |
|
|
3610 | map_len = load_len + save_len + 16; |
|
|
3611 | |
|
|
3612 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3613 | |
|
|
3614 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3615 | |
|
|
3616 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3617 | memcpy (map_base, load_ptr, load_len); |
|
|
3618 | |
|
|
3619 | map_base += (load_len + 15) & ~15; |
|
|
3620 | |
|
|
3621 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3622 | memcpy (map_base, save_ptr, save_len); |
|
|
3623 | |
|
|
3624 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3625 | /* hackers might have it a bit more difficult */ |
|
|
3626 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3627 | |
|
|
3628 | PUTBACK; |
|
|
3629 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3630 | } |
|
|
3631 | |
|
|
3632 | #endif |
|
|
3633 | |
1208 | MODULE = Coro::State PACKAGE = Coro::State |
3634 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1209 | |
3635 | |
1210 | PROTOTYPES: DISABLE |
3636 | PROTOTYPES: DISABLE |
1211 | |
3637 | |
1212 | BOOT: |
3638 | BOOT: |
1213 | { |
3639 | { |
|
|
3640 | #define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl."); |
|
|
3641 | #include "state.h" |
1214 | #ifdef USE_ITHREADS |
3642 | #ifdef USE_ITHREADS |
1215 | MUTEX_INIT (&coro_mutex); |
3643 | # if CORO_PTHREAD |
|
|
3644 | coro_thx = PERL_GET_CONTEXT; |
1216 | #endif |
3645 | # endif |
1217 | BOOT_PAGESIZE; |
3646 | #endif |
|
|
3647 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3648 | /* just create them one at init time is not clear to me, except for */ |
|
|
3649 | /* programs trying to delete them, but... */ |
|
|
3650 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3651 | DEFSV; |
|
|
3652 | ERRSV; |
|
|
3653 | |
|
|
3654 | cctx_current = cctx_new_empty (); |
|
|
3655 | |
|
|
3656 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
3657 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
3658 | |
|
|
3659 | { |
|
|
3660 | /* |
|
|
3661 | * we provide a vtbvl for %SIG magic that replaces PL_vtbl_sig |
|
|
3662 | * by coro_sig_vtbl in hash values. |
|
|
3663 | */ |
|
|
3664 | MAGIC *mg = mg_find ((SV *)GvHV (gv_fetchpv ("SIG", GV_ADD | GV_NOTQUAL, SVt_PVHV)), PERL_MAGIC_sig); |
|
|
3665 | |
|
|
3666 | /* this only works if perl doesn't have a vtbl for %SIG */ |
|
|
3667 | assert (!mg->mg_virtual); |
|
|
3668 | |
|
|
3669 | /* |
|
|
3670 | * The irony is that the perl API itself asserts that mg_virtual |
|
|
3671 | * must be non-const, yet perl5porters insisted on marking their |
|
|
3672 | * vtbls as read-only, just to thwart perl modules from patching |
|
|
3673 | * them. |
|
|
3674 | */ |
|
|
3675 | mg->mg_virtual = (MGVTBL *)&coro_sig_vtbl; |
|
|
3676 | mg->mg_flags |= MGf_COPY; |
|
|
3677 | |
|
|
3678 | coro_sigelem_vtbl = PL_vtbl_sigelem; |
|
|
3679 | coro_sigelem_vtbl.svt_get = coro_sigelem_get; |
|
|
3680 | coro_sigelem_vtbl.svt_set = coro_sigelem_set; |
|
|
3681 | coro_sigelem_vtbl.svt_clear = coro_sigelem_clr; |
|
|
3682 | } |
|
|
3683 | |
|
|
3684 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
3685 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1218 | |
3686 | |
1219 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3687 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1220 | |
3688 | |
1221 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
3689 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1222 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
3690 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1223 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1224 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1225 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1226 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
3691 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1227 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
3692 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1228 | |
3693 | |
1229 | main_mainstack = PL_mainstack; |
3694 | main_mainstack = PL_mainstack; |
1230 | main_top_env = PL_top_env; |
3695 | main_top_env = PL_top_env; |
1231 | |
3696 | |
1232 | while (main_top_env->je_prev) |
3697 | while (main_top_env->je_prev) |
1233 | main_top_env = main_top_env->je_prev; |
3698 | main_top_env = main_top_env->je_prev; |
1234 | |
3699 | |
|
|
3700 | { |
|
|
3701 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3702 | |
|
|
3703 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3704 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3705 | |
|
|
3706 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3707 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3708 | } |
|
|
3709 | |
1235 | coroapi.ver = CORO_API_VERSION; |
3710 | coroapi.ver = CORO_API_VERSION; |
|
|
3711 | coroapi.rev = CORO_API_REVISION; |
|
|
3712 | |
1236 | coroapi.transfer = api_transfer; |
3713 | coroapi.transfer = api_transfer; |
1237 | |
3714 | |
|
|
3715 | coroapi.sv_state = SvSTATE_; |
|
|
3716 | coroapi.execute_slf = api_execute_slf; |
|
|
3717 | coroapi.prepare_nop = prepare_nop; |
|
|
3718 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3719 | coroapi.prepare_cede = prepare_cede; |
|
|
3720 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3721 | |
|
|
3722 | time_init (aTHX); |
|
|
3723 | |
1238 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3724 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3725 | #if CORO_JIT |
|
|
3726 | PUTBACK; |
|
|
3727 | jit_init (aTHX); |
|
|
3728 | SPAGAIN; |
|
|
3729 | #endif |
1239 | } |
3730 | } |
1240 | |
3731 | |
1241 | SV * |
3732 | SV * |
1242 | new (char *klass, ...) |
3733 | new (SV *klass, ...) |
|
|
3734 | ALIAS: |
|
|
3735 | Coro::new = 1 |
1243 | CODE: |
3736 | CODE: |
1244 | { |
3737 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1245 | struct coro *coro; |
|
|
1246 | HV *hv; |
|
|
1247 | int i; |
|
|
1248 | |
|
|
1249 | Newz (0, coro, 1, struct coro); |
|
|
1250 | coro->args = newAV (); |
|
|
1251 | coro->save = CORO_SAVE_DEF; |
|
|
1252 | coro->flags = CF_NEW; |
|
|
1253 | |
|
|
1254 | if (coro_first) coro_first->prev = coro; |
|
|
1255 | coro->next = coro_first; |
|
|
1256 | coro_first = coro; |
|
|
1257 | |
|
|
1258 | coro->hv = hv = newHV (); |
|
|
1259 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1260 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1261 | |
|
|
1262 | for (i = 1; i < items; i++) |
|
|
1263 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1264 | } |
|
|
1265 | OUTPUT: |
|
|
1266 | RETVAL |
|
|
1267 | |
|
|
1268 | int |
|
|
1269 | save (SV *coro, int new_save = -1) |
|
|
1270 | CODE: |
|
|
1271 | RETVAL = api_save (coro, new_save); |
|
|
1272 | OUTPUT: |
3738 | OUTPUT: |
1273 | RETVAL |
3739 | RETVAL |
1274 | |
3740 | |
1275 | int |
3741 | void |
1276 | save_also (SV *coro_sv, int save_also) |
3742 | transfer (...) |
|
|
3743 | PROTOTYPE: $$ |
1277 | CODE: |
3744 | CODE: |
|
|
3745 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
|
|
3746 | |
|
|
3747 | SV * |
|
|
3748 | clone (Coro::State coro) |
|
|
3749 | CODE: |
1278 | { |
3750 | { |
1279 | struct coro *coro = SvSTATE (coro_sv); |
3751 | #if CORO_CLONE |
1280 | RETVAL = coro->save; |
3752 | struct coro *ncoro = coro_clone (aTHX_ coro); |
1281 | coro->save |= save_also; |
3753 | MAGIC *mg; |
|
|
3754 | /* TODO: too much duplication */ |
|
|
3755 | ncoro->hv = newHV (); |
|
|
3756 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3757 | mg->mg_flags |= MGf_DUP; |
|
|
3758 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3759 | #else |
|
|
3760 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3761 | #endif |
1282 | } |
3762 | } |
1283 | OUTPUT: |
3763 | OUTPUT: |
1284 | RETVAL |
3764 | RETVAL |
1285 | |
3765 | |
1286 | void |
3766 | int |
1287 | _set_stacklevel (...) |
3767 | cctx_stacksize (int new_stacksize = 0) |
1288 | ALIAS: |
3768 | PROTOTYPE: ;$ |
1289 | Coro::State::transfer = 1 |
3769 | CODE: |
1290 | Coro::schedule = 2 |
3770 | RETVAL = cctx_stacksize; |
1291 | Coro::cede = 3 |
3771 | if (new_stacksize) |
1292 | Coro::cede_notself = 4 |
|
|
1293 | CODE: |
|
|
1294 | { |
|
|
1295 | struct transfer_args ta; |
|
|
1296 | |
|
|
1297 | switch (ix) |
|
|
1298 | { |
3772 | { |
1299 | case 0: |
3773 | cctx_stacksize = new_stacksize; |
1300 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
3774 | ++cctx_gen; |
1301 | ta.next = 0; |
|
|
1302 | break; |
|
|
1303 | |
|
|
1304 | case 1: |
|
|
1305 | if (items != 2) |
|
|
1306 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1307 | |
|
|
1308 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1309 | break; |
|
|
1310 | |
|
|
1311 | case 2: |
|
|
1312 | prepare_schedule (aTHX_ &ta); |
|
|
1313 | break; |
|
|
1314 | |
|
|
1315 | case 3: |
|
|
1316 | prepare_cede (aTHX_ &ta); |
|
|
1317 | break; |
|
|
1318 | |
|
|
1319 | case 4: |
|
|
1320 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1321 | XSRETURN_EMPTY; |
|
|
1322 | |
|
|
1323 | break; |
|
|
1324 | } |
3775 | } |
1325 | |
|
|
1326 | BARRIER; |
|
|
1327 | TRANSFER (ta); |
|
|
1328 | |
|
|
1329 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1330 | XSRETURN_YES; |
|
|
1331 | } |
|
|
1332 | |
|
|
1333 | bool |
|
|
1334 | _destroy (SV *coro_sv) |
|
|
1335 | CODE: |
|
|
1336 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1337 | OUTPUT: |
3776 | OUTPUT: |
1338 | RETVAL |
3777 | RETVAL |
1339 | |
3778 | |
1340 | void |
3779 | int |
1341 | _exit (code) |
3780 | cctx_max_idle (int max_idle = 0) |
1342 | int code |
3781 | PROTOTYPE: ;$ |
1343 | PROTOTYPE: $ |
|
|
1344 | CODE: |
3782 | CODE: |
1345 | _exit (code); |
3783 | RETVAL = cctx_max_idle; |
1346 | |
3784 | if (max_idle > 1) |
1347 | int |
3785 | cctx_max_idle = max_idle; |
1348 | cctx_stacksize (int new_stacksize = 0) |
|
|
1349 | CODE: |
|
|
1350 | RETVAL = coro_stacksize; |
|
|
1351 | if (new_stacksize) |
|
|
1352 | coro_stacksize = new_stacksize; |
|
|
1353 | OUTPUT: |
3786 | OUTPUT: |
1354 | RETVAL |
3787 | RETVAL |
1355 | |
3788 | |
1356 | int |
3789 | int |
1357 | cctx_count () |
3790 | cctx_count () |
|
|
3791 | PROTOTYPE: |
1358 | CODE: |
3792 | CODE: |
1359 | RETVAL = cctx_count; |
3793 | RETVAL = cctx_count; |
1360 | OUTPUT: |
3794 | OUTPUT: |
1361 | RETVAL |
3795 | RETVAL |
1362 | |
3796 | |
1363 | int |
3797 | int |
1364 | cctx_idle () |
3798 | cctx_idle () |
|
|
3799 | PROTOTYPE: |
1365 | CODE: |
3800 | CODE: |
1366 | RETVAL = cctx_idle; |
3801 | RETVAL = cctx_idle; |
1367 | OUTPUT: |
3802 | OUTPUT: |
1368 | RETVAL |
3803 | RETVAL |
1369 | |
3804 | |
1370 | void |
3805 | void |
1371 | list () |
3806 | list () |
|
|
3807 | PROTOTYPE: |
1372 | PPCODE: |
3808 | PPCODE: |
1373 | { |
3809 | { |
1374 | struct coro *coro; |
3810 | struct coro *coro; |
1375 | for (coro = coro_first; coro; coro = coro->next) |
3811 | for (coro = coro_first; coro; coro = coro->next) |
1376 | if (coro->hv) |
3812 | if (coro->hv) |
1377 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
3813 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
1378 | } |
3814 | } |
1379 | |
3815 | |
1380 | void |
3816 | void |
1381 | _eval (Coro::State coro, SV *coderef) |
3817 | call (Coro::State coro, SV *coderef) |
|
|
3818 | ALIAS: |
|
|
3819 | eval = 1 |
1382 | CODE: |
3820 | CODE: |
1383 | { |
3821 | { |
1384 | if (coro->mainstack) |
3822 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1385 | { |
3823 | { |
1386 | struct coro temp; |
3824 | struct coro *current = SvSTATE_current; |
1387 | Zero (&temp, 1, struct coro); |
3825 | struct CoroSLF slf_save; |
1388 | temp.save = CORO_SAVE_ALL; |
|
|
1389 | |
3826 | |
1390 | if (!(coro->flags & CF_RUNNING)) |
3827 | if (current != coro) |
1391 | { |
3828 | { |
|
|
3829 | PUTBACK; |
1392 | save_perl (aTHX_ &temp); |
3830 | save_perl (aTHX_ current); |
1393 | load_perl (aTHX_ coro); |
3831 | load_perl (aTHX_ coro); |
|
|
3832 | /* the coro is most likely in an active SLF call. |
|
|
3833 | * while not strictly required (the code we execute is |
|
|
3834 | * not allowed to call any SLF functions), it's cleaner |
|
|
3835 | * to reinitialise the slf_frame and restore it later. |
|
|
3836 | * This might one day allow us to actually do SLF calls |
|
|
3837 | * from code executed here. |
|
|
3838 | */ |
|
|
3839 | slf_save = slf_frame; |
|
|
3840 | slf_frame.prepare = 0; |
|
|
3841 | SPAGAIN; |
1394 | } |
3842 | } |
1395 | |
3843 | |
1396 | { |
3844 | PUSHSTACK; |
1397 | dSP; |
3845 | |
1398 | ENTER; |
|
|
1399 | SAVETMPS; |
|
|
1400 | PUSHMARK (SP); |
3846 | PUSHMARK (SP); |
1401 | PUTBACK; |
3847 | PUTBACK; |
|
|
3848 | |
|
|
3849 | if (ix) |
|
|
3850 | eval_sv (coderef, 0); |
|
|
3851 | else |
1402 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3852 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3853 | |
|
|
3854 | POPSTACK; |
1403 | SPAGAIN; |
3855 | SPAGAIN; |
1404 | FREETMPS; |
|
|
1405 | LEAVE; |
|
|
1406 | PUTBACK; |
|
|
1407 | } |
|
|
1408 | |
3856 | |
1409 | if (!(coro->flags & CF_RUNNING)) |
3857 | if (current != coro) |
1410 | { |
3858 | { |
|
|
3859 | PUTBACK; |
|
|
3860 | slf_frame = slf_save; |
1411 | save_perl (aTHX_ coro); |
3861 | save_perl (aTHX_ coro); |
1412 | load_perl (aTHX_ &temp); |
3862 | load_perl (aTHX_ current); |
|
|
3863 | SPAGAIN; |
1413 | } |
3864 | } |
1414 | } |
3865 | } |
1415 | } |
3866 | } |
1416 | |
3867 | |
1417 | SV * |
3868 | SV * |
1418 | is_ready (Coro::State coro) |
3869 | is_ready (Coro::State coro) |
1419 | PROTOTYPE: $ |
3870 | PROTOTYPE: $ |
1420 | ALIAS: |
3871 | ALIAS: |
1421 | is_ready = CF_READY |
3872 | is_ready = CF_READY |
1422 | is_running = CF_RUNNING |
3873 | is_running = CF_RUNNING |
1423 | is_new = CF_NEW |
3874 | is_new = CF_NEW |
1424 | is_destroyed = CF_DESTROYED |
3875 | is_destroyed = CF_ZOMBIE |
|
|
3876 | is_zombie = CF_ZOMBIE |
|
|
3877 | is_suspended = CF_SUSPENDED |
1425 | CODE: |
3878 | CODE: |
1426 | RETVAL = boolSV (coro->flags & ix); |
3879 | RETVAL = boolSV (coro->flags & ix); |
1427 | OUTPUT: |
3880 | OUTPUT: |
1428 | RETVAL |
3881 | RETVAL |
1429 | |
3882 | |
1430 | IV |
3883 | void |
|
|
3884 | throw (SV *self, SV *exception = &PL_sv_undef) |
|
|
3885 | PROTOTYPE: $;$ |
|
|
3886 | CODE: |
|
|
3887 | { |
|
|
3888 | struct coro *coro = SvSTATE (self); |
|
|
3889 | struct coro *current = SvSTATE_current; |
|
|
3890 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
|
|
3891 | SvREFCNT_dec (*exceptionp); |
|
|
3892 | SvGETMAGIC (exception); |
|
|
3893 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3894 | |
|
|
3895 | api_ready (aTHX_ self); |
|
|
3896 | } |
|
|
3897 | |
|
|
3898 | void |
|
|
3899 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3900 | PROTOTYPE: $;$ |
|
|
3901 | C_ARGS: aTHX_ coro, flags |
|
|
3902 | |
|
|
3903 | SV * |
|
|
3904 | has_cctx (Coro::State coro) |
|
|
3905 | PROTOTYPE: $ |
|
|
3906 | CODE: |
|
|
3907 | /* maybe manage the running flag differently */ |
|
|
3908 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
|
|
3909 | OUTPUT: |
|
|
3910 | RETVAL |
|
|
3911 | |
|
|
3912 | int |
|
|
3913 | is_traced (Coro::State coro) |
|
|
3914 | PROTOTYPE: $ |
|
|
3915 | CODE: |
|
|
3916 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
3917 | OUTPUT: |
|
|
3918 | RETVAL |
|
|
3919 | |
|
|
3920 | UV |
1431 | rss (Coro::State coro) |
3921 | rss (Coro::State coro) |
1432 | PROTOTYPE: $ |
3922 | PROTOTYPE: $ |
|
|
3923 | ALIAS: |
|
|
3924 | usecount = 1 |
1433 | CODE: |
3925 | CODE: |
1434 | RETVAL = coro_rss (coro); |
3926 | switch (ix) |
|
|
3927 | { |
|
|
3928 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
3929 | case 1: RETVAL = coro->usecount; break; |
|
|
3930 | } |
1435 | OUTPUT: |
3931 | OUTPUT: |
1436 | RETVAL |
3932 | RETVAL |
1437 | |
3933 | |
|
|
3934 | void |
|
|
3935 | force_cctx () |
|
|
3936 | PROTOTYPE: |
|
|
3937 | CODE: |
|
|
3938 | cctx_current->idle_sp = 0; |
|
|
3939 | |
|
|
3940 | void |
|
|
3941 | swap_defsv (Coro::State self) |
|
|
3942 | PROTOTYPE: $ |
|
|
3943 | ALIAS: |
|
|
3944 | swap_defav = 1 |
|
|
3945 | CODE: |
|
|
3946 | if (!self->slot) |
|
|
3947 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3948 | else |
|
|
3949 | { |
|
|
3950 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3951 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3952 | |
|
|
3953 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3954 | } |
|
|
3955 | |
|
|
3956 | void |
|
|
3957 | cancel (Coro::State self) |
|
|
3958 | CODE: |
|
|
3959 | coro_state_destroy (aTHX_ self); |
|
|
3960 | |
|
|
3961 | SV * |
|
|
3962 | enable_times (int enabled = enable_times) |
|
|
3963 | CODE: |
|
|
3964 | { |
|
|
3965 | RETVAL = boolSV (enable_times); |
|
|
3966 | |
|
|
3967 | if (enabled != enable_times) |
|
|
3968 | { |
|
|
3969 | enable_times = enabled; |
|
|
3970 | |
|
|
3971 | coro_times_update (); |
|
|
3972 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3973 | } |
|
|
3974 | } |
|
|
3975 | OUTPUT: |
|
|
3976 | RETVAL |
|
|
3977 | |
|
|
3978 | void |
|
|
3979 | times (Coro::State self) |
|
|
3980 | PPCODE: |
|
|
3981 | { |
|
|
3982 | struct coro *current = SvSTATE (coro_current); |
|
|
3983 | |
|
|
3984 | if (ecb_expect_false (current == self)) |
|
|
3985 | { |
|
|
3986 | coro_times_update (); |
|
|
3987 | coro_times_add (SvSTATE (coro_current)); |
|
|
3988 | } |
|
|
3989 | |
|
|
3990 | EXTEND (SP, 2); |
|
|
3991 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3992 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3993 | |
|
|
3994 | if (ecb_expect_false (current == self)) |
|
|
3995 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3996 | } |
|
|
3997 | |
|
|
3998 | void |
|
|
3999 | swap_sv (Coro::State coro, SV *sva, SV *svb) |
|
|
4000 | CODE: |
|
|
4001 | { |
|
|
4002 | struct coro *current = SvSTATE_current; |
|
|
4003 | AV *swap_sv; |
|
|
4004 | int i; |
|
|
4005 | |
|
|
4006 | sva = SvRV (sva); |
|
|
4007 | svb = SvRV (svb); |
|
|
4008 | |
|
|
4009 | if (current == coro) |
|
|
4010 | SWAP_SVS_LEAVE (current); |
|
|
4011 | |
|
|
4012 | if (!coro->swap_sv) |
|
|
4013 | coro->swap_sv = newAV (); |
|
|
4014 | |
|
|
4015 | swap_sv = coro->swap_sv; |
|
|
4016 | |
|
|
4017 | for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2) |
|
|
4018 | { |
|
|
4019 | SV *a = AvARRAY (swap_sv)[i ]; |
|
|
4020 | SV *b = AvARRAY (swap_sv)[i + 1]; |
|
|
4021 | |
|
|
4022 | if (a == sva && b == svb) |
|
|
4023 | { |
|
|
4024 | SvREFCNT_dec_NN (a); |
|
|
4025 | SvREFCNT_dec_NN (b); |
|
|
4026 | |
|
|
4027 | for (; i <= AvFILLp (swap_sv) - 2; i++) |
|
|
4028 | AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2]; |
|
|
4029 | |
|
|
4030 | AvFILLp (swap_sv) -= 2; |
|
|
4031 | |
|
|
4032 | goto removed; |
|
|
4033 | } |
|
|
4034 | } |
|
|
4035 | |
|
|
4036 | av_push (swap_sv, SvREFCNT_inc_NN (sva)); |
|
|
4037 | av_push (swap_sv, SvREFCNT_inc_NN (svb)); |
|
|
4038 | |
|
|
4039 | removed: |
|
|
4040 | |
|
|
4041 | if (current == coro) |
|
|
4042 | SWAP_SVS_ENTER (current); |
|
|
4043 | } |
|
|
4044 | |
1438 | |
4045 | |
1439 | MODULE = Coro::State PACKAGE = Coro |
4046 | MODULE = Coro::State PACKAGE = Coro |
1440 | |
4047 | |
1441 | BOOT: |
4048 | BOOT: |
1442 | { |
4049 | { |
1443 | int i; |
4050 | if (SVt_LAST > 32) |
|
|
4051 | croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment"); |
1444 | |
4052 | |
|
|
4053 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
4054 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
4055 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
4056 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
|
|
4057 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
4058 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
4059 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
4060 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
4061 | |
|
|
4062 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
4063 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
4064 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
4065 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
4066 | |
1445 | coro_stash = gv_stashpv ("Coro", TRUE); |
4067 | coro_stash = gv_stashpv ("Coro", TRUE); |
1446 | |
4068 | |
1447 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
4069 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1448 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
4070 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1449 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
4071 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1450 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
4072 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1451 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
4073 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1452 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
4074 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1453 | |
|
|
1454 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1455 | SvREADONLY_on (coro_current); |
|
|
1456 | |
|
|
1457 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1458 | coro_ready[i] = newAV (); |
|
|
1459 | |
4075 | |
1460 | { |
4076 | { |
1461 | SV *sv = perl_get_sv("Coro::API", 1); |
4077 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1462 | |
4078 | |
1463 | coroapi.schedule = api_schedule; |
4079 | coroapi.schedule = api_schedule; |
1464 | coroapi.save = api_save; |
4080 | coroapi.schedule_to = api_schedule_to; |
1465 | coroapi.cede = api_cede; |
4081 | coroapi.cede = api_cede; |
1466 | coroapi.cede_notself = api_cede_notself; |
4082 | coroapi.cede_notself = api_cede_notself; |
1467 | coroapi.ready = api_ready; |
4083 | coroapi.ready = api_ready; |
1468 | coroapi.is_ready = api_is_ready; |
4084 | coroapi.is_ready = api_is_ready; |
1469 | coroapi.nready = &coro_nready; |
4085 | coroapi.nready = coro_nready; |
1470 | coroapi.current = coro_current; |
4086 | coroapi.current = coro_current; |
1471 | |
4087 | |
|
|
4088 | coroapi.enterleave_hook = api_enterleave_hook; |
|
|
4089 | coroapi.enterleave_unhook = api_enterleave_unhook; |
|
|
4090 | coroapi.enterleave_scope_hook = api_enterleave_scope_hook; |
|
|
4091 | |
1472 | GCoroAPI = &coroapi; |
4092 | /*GCoroAPI = &coroapi;*/ |
1473 | sv_setiv (sv, (IV)&coroapi); |
4093 | sv_setiv (sv, (IV)&coroapi); |
1474 | SvREADONLY_on (sv); |
4094 | SvREADONLY_on (sv); |
1475 | } |
4095 | } |
1476 | } |
4096 | } |
|
|
4097 | |
|
|
4098 | SV * |
|
|
4099 | async (...) |
|
|
4100 | PROTOTYPE: &@ |
|
|
4101 | CODE: |
|
|
4102 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
4103 | api_ready (aTHX_ RETVAL); |
|
|
4104 | OUTPUT: |
|
|
4105 | RETVAL |
|
|
4106 | |
|
|
4107 | void |
|
|
4108 | _destroy (Coro::State coro) |
|
|
4109 | CODE: |
|
|
4110 | /* used by the manager thread */ |
|
|
4111 | coro_state_destroy (aTHX_ coro); |
|
|
4112 | |
|
|
4113 | void |
|
|
4114 | on_destroy (Coro::State coro, SV *cb) |
|
|
4115 | CODE: |
|
|
4116 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
4117 | |
|
|
4118 | void |
|
|
4119 | join (...) |
|
|
4120 | CODE: |
|
|
4121 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
4122 | |
|
|
4123 | void |
|
|
4124 | terminate (...) |
|
|
4125 | CODE: |
|
|
4126 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
4127 | |
|
|
4128 | void |
|
|
4129 | cancel (...) |
|
|
4130 | CODE: |
|
|
4131 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
4132 | |
|
|
4133 | int |
|
|
4134 | safe_cancel (Coro::State self, ...) |
|
|
4135 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
4136 | |
|
|
4137 | void |
|
|
4138 | schedule (...) |
|
|
4139 | CODE: |
|
|
4140 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
4141 | |
|
|
4142 | void |
|
|
4143 | schedule_to (...) |
|
|
4144 | CODE: |
|
|
4145 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
4146 | |
|
|
4147 | void |
|
|
4148 | cede_to (...) |
|
|
4149 | CODE: |
|
|
4150 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
4151 | |
|
|
4152 | void |
|
|
4153 | cede (...) |
|
|
4154 | CODE: |
|
|
4155 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
4156 | |
|
|
4157 | void |
|
|
4158 | cede_notself (...) |
|
|
4159 | CODE: |
|
|
4160 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1477 | |
4161 | |
1478 | void |
4162 | void |
1479 | _set_current (SV *current) |
4163 | _set_current (SV *current) |
1480 | PROTOTYPE: $ |
4164 | PROTOTYPE: $ |
1481 | CODE: |
4165 | CODE: |
1482 | SvREFCNT_dec (SvRV (coro_current)); |
4166 | SvREFCNT_dec_NN (SvRV (coro_current)); |
1483 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
4167 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
4168 | |
|
|
4169 | void |
|
|
4170 | _set_readyhook (SV *hook) |
|
|
4171 | PROTOTYPE: $ |
|
|
4172 | CODE: |
|
|
4173 | SvREFCNT_dec (coro_readyhook); |
|
|
4174 | SvGETMAGIC (hook); |
|
|
4175 | if (SvOK (hook)) |
|
|
4176 | { |
|
|
4177 | coro_readyhook = newSVsv (hook); |
|
|
4178 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
4179 | } |
|
|
4180 | else |
|
|
4181 | { |
|
|
4182 | coro_readyhook = 0; |
|
|
4183 | CORO_READYHOOK = 0; |
|
|
4184 | } |
1484 | |
4185 | |
1485 | int |
4186 | int |
1486 | prio (Coro::State coro, int newprio = 0) |
4187 | prio (Coro::State coro, int newprio = 0) |
|
|
4188 | PROTOTYPE: $;$ |
1487 | ALIAS: |
4189 | ALIAS: |
1488 | nice = 1 |
4190 | nice = 1 |
1489 | CODE: |
4191 | CODE: |
1490 | { |
4192 | { |
1491 | RETVAL = coro->prio; |
4193 | RETVAL = coro->prio; |
… | |
… | |
1493 | if (items > 1) |
4195 | if (items > 1) |
1494 | { |
4196 | { |
1495 | if (ix) |
4197 | if (ix) |
1496 | newprio = coro->prio - newprio; |
4198 | newprio = coro->prio - newprio; |
1497 | |
4199 | |
1498 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
4200 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1499 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
4201 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1500 | |
4202 | |
1501 | coro->prio = newprio; |
4203 | coro->prio = newprio; |
1502 | } |
4204 | } |
1503 | } |
4205 | } |
1504 | OUTPUT: |
4206 | OUTPUT: |
… | |
… | |
1506 | |
4208 | |
1507 | SV * |
4209 | SV * |
1508 | ready (SV *self) |
4210 | ready (SV *self) |
1509 | PROTOTYPE: $ |
4211 | PROTOTYPE: $ |
1510 | CODE: |
4212 | CODE: |
1511 | RETVAL = boolSV (api_ready (self)); |
4213 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1512 | OUTPUT: |
4214 | OUTPUT: |
1513 | RETVAL |
4215 | RETVAL |
1514 | |
4216 | |
1515 | int |
4217 | int |
1516 | nready (...) |
4218 | nready (...) |
… | |
… | |
1518 | CODE: |
4220 | CODE: |
1519 | RETVAL = coro_nready; |
4221 | RETVAL = coro_nready; |
1520 | OUTPUT: |
4222 | OUTPUT: |
1521 | RETVAL |
4223 | RETVAL |
1522 | |
4224 | |
1523 | MODULE = Coro::State PACKAGE = Coro::AIO |
4225 | void |
|
|
4226 | suspend (Coro::State self) |
|
|
4227 | PROTOTYPE: $ |
|
|
4228 | CODE: |
|
|
4229 | self->flags |= CF_SUSPENDED; |
|
|
4230 | |
|
|
4231 | void |
|
|
4232 | resume (Coro::State self) |
|
|
4233 | PROTOTYPE: $ |
|
|
4234 | CODE: |
|
|
4235 | self->flags &= ~CF_SUSPENDED; |
|
|
4236 | |
|
|
4237 | void |
|
|
4238 | _pool_handler (...) |
|
|
4239 | CODE: |
|
|
4240 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
4241 | |
|
|
4242 | void |
|
|
4243 | async_pool (SV *cv, ...) |
|
|
4244 | PROTOTYPE: &@ |
|
|
4245 | PPCODE: |
|
|
4246 | { |
|
|
4247 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
4248 | AV *av = newAV (); |
|
|
4249 | SV *cb = ST (0); |
|
|
4250 | int i; |
|
|
4251 | |
|
|
4252 | av_extend (av, items - 2); |
|
|
4253 | for (i = 1; i < items; ++i) |
|
|
4254 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
4255 | |
|
|
4256 | if ((SV *)hv == &PL_sv_undef) |
|
|
4257 | { |
|
|
4258 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
|
|
4259 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
|
|
4260 | SvREFCNT_dec_NN (sv); |
|
|
4261 | } |
|
|
4262 | |
|
|
4263 | { |
|
|
4264 | struct coro *coro = SvSTATE_hv (hv); |
|
|
4265 | |
|
|
4266 | assert (!coro->invoke_cb); |
|
|
4267 | assert (!coro->invoke_av); |
|
|
4268 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4269 | coro->invoke_av = av; |
|
|
4270 | } |
|
|
4271 | |
|
|
4272 | api_ready (aTHX_ (SV *)hv); |
|
|
4273 | |
|
|
4274 | if (GIMME_V != G_VOID) |
|
|
4275 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4276 | else |
|
|
4277 | SvREFCNT_dec_NN (hv); |
|
|
4278 | } |
1524 | |
4279 | |
1525 | SV * |
4280 | SV * |
1526 | _get_state () |
4281 | rouse_cb () |
|
|
4282 | PROTOTYPE: |
1527 | CODE: |
4283 | CODE: |
1528 | { |
4284 | RETVAL = coro_new_rouse_cb (aTHX); |
1529 | struct io_state *data; |
|
|
1530 | |
|
|
1531 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1532 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1533 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1534 | SvPOK_only (RETVAL); |
|
|
1535 | |
|
|
1536 | data->errorno = errno; |
|
|
1537 | data->laststype = PL_laststype; |
|
|
1538 | data->laststatval = PL_laststatval; |
|
|
1539 | data->statcache = PL_statcache; |
|
|
1540 | } |
|
|
1541 | OUTPUT: |
4285 | OUTPUT: |
1542 | RETVAL |
4286 | RETVAL |
1543 | |
4287 | |
1544 | void |
4288 | void |
1545 | _set_state (char *data_) |
4289 | rouse_wait (...) |
|
|
4290 | PROTOTYPE: ;$ |
|
|
4291 | PPCODE: |
|
|
4292 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4293 | |
|
|
4294 | void |
|
|
4295 | on_enter (SV *block) |
|
|
4296 | ALIAS: |
|
|
4297 | on_leave = 1 |
1546 | PROTOTYPE: $ |
4298 | PROTOTYPE: & |
1547 | CODE: |
4299 | CODE: |
1548 | { |
4300 | { |
1549 | struct io_state *data = (void *)data_; |
4301 | struct coro *coro = SvSTATE_current; |
|
|
4302 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1550 | |
4303 | |
1551 | errno = data->errorno; |
4304 | block = s_get_cv_croak (block); |
1552 | PL_laststype = data->laststype; |
|
|
1553 | PL_laststatval = data->laststatval; |
|
|
1554 | PL_statcache = data->statcache; |
|
|
1555 | } |
|
|
1556 | |
4305 | |
|
|
4306 | if (!*avp) |
|
|
4307 | *avp = newAV (); |
|
|
4308 | |
|
|
4309 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4310 | |
|
|
4311 | if (!ix) |
|
|
4312 | on_enterleave_call (aTHX_ block); |
|
|
4313 | |
|
|
4314 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4315 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4316 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4317 | } |
|
|
4318 | |
|
|
4319 | |
|
|
4320 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4321 | |
|
|
4322 | BOOT: |
|
|
4323 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4324 | |
|
|
4325 | |
|
|
4326 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4327 | |
|
|
4328 | SV * |
|
|
4329 | new (SV *klass, SV *count = 0) |
|
|
4330 | CODE: |
|
|
4331 | { |
|
|
4332 | int semcnt = 1; |
|
|
4333 | |
|
|
4334 | if (count) |
|
|
4335 | { |
|
|
4336 | SvGETMAGIC (count); |
|
|
4337 | |
|
|
4338 | if (SvOK (count)) |
|
|
4339 | semcnt = SvIV (count); |
|
|
4340 | } |
|
|
4341 | |
|
|
4342 | RETVAL = sv_bless ( |
|
|
4343 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4344 | GvSTASH (CvGV (cv)) |
|
|
4345 | ); |
|
|
4346 | } |
|
|
4347 | OUTPUT: |
|
|
4348 | RETVAL |
|
|
4349 | |
|
|
4350 | # helper for Coro::Channel and others |
|
|
4351 | SV * |
|
|
4352 | _alloc (int count) |
|
|
4353 | CODE: |
|
|
4354 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4355 | OUTPUT: |
|
|
4356 | RETVAL |
|
|
4357 | |
|
|
4358 | SV * |
|
|
4359 | count (SV *self) |
|
|
4360 | CODE: |
|
|
4361 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4362 | OUTPUT: |
|
|
4363 | RETVAL |
|
|
4364 | |
|
|
4365 | void |
|
|
4366 | up (SV *self) |
|
|
4367 | CODE: |
|
|
4368 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1); |
|
|
4369 | |
|
|
4370 | void |
|
|
4371 | adjust (SV *self, int adjust) |
|
|
4372 | CODE: |
|
|
4373 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust); |
|
|
4374 | |
|
|
4375 | void |
|
|
4376 | down (...) |
|
|
4377 | CODE: |
|
|
4378 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4379 | |
|
|
4380 | void |
|
|
4381 | wait (...) |
|
|
4382 | CODE: |
|
|
4383 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4384 | |
|
|
4385 | void |
|
|
4386 | try (SV *self) |
|
|
4387 | PPCODE: |
|
|
4388 | { |
|
|
4389 | AV *av = (AV *)SvRV (self); |
|
|
4390 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4391 | IV count = SvIVX (count_sv); |
|
|
4392 | |
|
|
4393 | if (count > 0) |
|
|
4394 | { |
|
|
4395 | --count; |
|
|
4396 | SvIVX (count_sv) = count; |
|
|
4397 | XSRETURN_YES; |
|
|
4398 | } |
|
|
4399 | else |
|
|
4400 | XSRETURN_NO; |
|
|
4401 | } |
|
|
4402 | |
|
|
4403 | void |
|
|
4404 | waiters (SV *self) |
|
|
4405 | PPCODE: |
|
|
4406 | { |
|
|
4407 | AV *av = (AV *)SvRV (self); |
|
|
4408 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4409 | |
|
|
4410 | if (GIMME_V == G_SCALAR) |
|
|
4411 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4412 | else |
|
|
4413 | { |
|
|
4414 | int i; |
|
|
4415 | EXTEND (SP, wcount); |
|
|
4416 | for (i = 1; i <= wcount; ++i) |
|
|
4417 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4418 | } |
|
|
4419 | } |
|
|
4420 | |
|
|
4421 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4422 | |
|
|
4423 | void |
|
|
4424 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4425 | PPCODE: |
|
|
4426 | { |
|
|
4427 | AV *av = (AV *)SvRV (sem); |
|
|
4428 | |
|
|
4429 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4430 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4431 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4432 | XSRETURN_YES; |
|
|
4433 | |
|
|
4434 | XSRETURN_NO; |
|
|
4435 | } |
|
|
4436 | |
|
|
4437 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4438 | |
|
|
4439 | SV * |
|
|
4440 | new (SV *klass) |
|
|
4441 | CODE: |
|
|
4442 | RETVAL = sv_bless ( |
|
|
4443 | coro_waitarray_new (aTHX_ 0), |
|
|
4444 | GvSTASH (CvGV (cv)) |
|
|
4445 | ); |
|
|
4446 | OUTPUT: |
|
|
4447 | RETVAL |
|
|
4448 | |
|
|
4449 | void |
|
|
4450 | wait (...) |
|
|
4451 | CODE: |
|
|
4452 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4453 | |
|
|
4454 | void |
|
|
4455 | broadcast (SV *self) |
|
|
4456 | CODE: |
|
|
4457 | { |
|
|
4458 | AV *av = (AV *)SvRV (self); |
|
|
4459 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4460 | } |
|
|
4461 | |
|
|
4462 | void |
|
|
4463 | send (SV *self) |
|
|
4464 | CODE: |
|
|
4465 | { |
|
|
4466 | AV *av = (AV *)SvRV (self); |
|
|
4467 | |
|
|
4468 | if (AvFILLp (av)) |
|
|
4469 | coro_signal_wake (aTHX_ av, 1); |
|
|
4470 | else |
|
|
4471 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4472 | } |
|
|
4473 | |
|
|
4474 | IV |
|
|
4475 | awaited (SV *self) |
|
|
4476 | CODE: |
|
|
4477 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4478 | OUTPUT: |
|
|
4479 | RETVAL |
|
|
4480 | |
|
|
4481 | |
|
|
4482 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4483 | |
|
|
4484 | BOOT: |
|
|
4485 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4486 | |
|
|
4487 | void |
|
|
4488 | _schedule (...) |
|
|
4489 | CODE: |
|
|
4490 | { |
|
|
4491 | static int incede; |
|
|
4492 | |
|
|
4493 | api_cede_notself (aTHX); |
|
|
4494 | |
|
|
4495 | ++incede; |
|
|
4496 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4497 | ; |
|
|
4498 | |
|
|
4499 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4500 | if (coro_nready >= incede) |
|
|
4501 | { |
|
|
4502 | PUSHMARK (SP); |
|
|
4503 | PUTBACK; |
|
|
4504 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4505 | } |
|
|
4506 | |
|
|
4507 | --incede; |
|
|
4508 | } |
|
|
4509 | |
|
|
4510 | |
|
|
4511 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4512 | |
|
|
4513 | void |
|
|
4514 | _register (char *target, char *proto, SV *req) |
|
|
4515 | CODE: |
|
|
4516 | { |
|
|
4517 | SV *req_cv = s_get_cv_croak (req); |
|
|
4518 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4519 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4520 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4521 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4522 | } |
|
|
4523 | |
|
|
4524 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4525 | |
|
|
4526 | void |
|
|
4527 | patch_pp_sselect () |
|
|
4528 | CODE: |
|
|
4529 | if (!coro_old_pp_sselect) |
|
|
4530 | { |
|
|
4531 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4532 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4533 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4534 | } |
|
|
4535 | |
|
|
4536 | void |
|
|
4537 | unpatch_pp_sselect () |
|
|
4538 | CODE: |
|
|
4539 | if (coro_old_pp_sselect) |
|
|
4540 | { |
|
|
4541 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4542 | coro_old_pp_sselect = 0; |
|
|
4543 | } |
|
|
4544 | |
|
|
4545 | MODULE = Coro::State PACKAGE = Coro::Util |
|
|
4546 | |
|
|
4547 | void |
|
|
4548 | _exit (int code) |
|
|
4549 | CODE: |
|
|
4550 | _exit (code); |
|
|
4551 | |
|
|
4552 | NV |
|
|
4553 | time () |
|
|
4554 | CODE: |
|
|
4555 | RETVAL = nvtime (aTHX); |
|
|
4556 | OUTPUT: |
|
|
4557 | RETVAL |
|
|
4558 | |
|
|
4559 | NV |
|
|
4560 | gettimeofday () |
|
|
4561 | PPCODE: |
|
|
4562 | { |
|
|
4563 | UV tv [2]; |
|
|
4564 | u2time (aTHX_ tv); |
|
|
4565 | EXTEND (SP, 2); |
|
|
4566 | PUSHs (sv_2mortal (newSVuv (tv [0]))); |
|
|
4567 | PUSHs (sv_2mortal (newSVuv (tv [1]))); |
|
|
4568 | } |
|
|
4569 | |