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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 | #include "ecb.h" |
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20 | |
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21 | #include <stddef.h> |
11 | #include <stdio.h> |
22 | #include <stdio.h> |
12 | #include <errno.h> |
23 | #include <errno.h> |
13 | #include <assert.h> |
24 | #include <assert.h> |
14 | |
25 | |
15 | #ifdef HAVE_MMAP |
26 | #ifndef SVs_PADSTALE |
16 | # include <unistd.h> |
27 | # define SVs_PADSTALE 0 |
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 |
28 | #endif |
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29 | |
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30 | #ifdef PadARRAY |
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31 | # define NEWPADAPI 1 |
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32 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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33 | #else |
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34 | typedef AV PADNAMELIST; |
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35 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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36 | typedef AV PADLIST; |
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37 | typedef AV PAD; |
24 | # endif |
38 | # endif |
25 | # include <limits.h> |
39 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
26 | # ifndef PAGESIZE |
40 | # define PadlistMAX(pl) AvFILLp (pl) |
27 | # define PAGESIZE pagesize |
41 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
28 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
42 | # define PadARRAY AvARRAY |
29 | static long pagesize; |
43 | # define PadMAX AvFILLp |
30 | # else |
44 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
31 | # define BOOT_PAGESIZE (void)0 |
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32 | # endif |
45 | #endif |
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46 | |
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47 | /* 5.19.something has replaced SVt_BIND by SVt_INVLIST */ |
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48 | /* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */ |
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49 | #if PERL_VERSION_ATLEAST(5,19,0) |
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50 | # define SVt_BIND SVt_IV |
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51 | #endif |
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52 | |
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53 | #if defined(_WIN32) |
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54 | # undef HAS_GETTIMEOFDAY |
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55 | # undef setjmp |
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56 | # undef longjmp |
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57 | # undef _exit |
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58 | # define setjmp _setjmp /* deep magic */ |
33 | #else |
59 | #else |
34 | # define PAGESIZE 0 |
60 | # 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 |
61 | #endif |
44 | |
62 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
63 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
64 | static int cctx_max_idle = 4; |
47 | |
65 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
66 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
49 | (PERL_REVISION > (a) \ |
67 | # 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 |
68 | #endif |
87 | |
69 | |
88 | /* prefer perl internal functions over our own? */ |
70 | /* prefer perl internal functions over our own? */ |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
71 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
72 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
73 | #endif |
92 | |
74 | |
93 | /* The next macro should declare a variable stacklevel that contains and approximation |
75 | /* 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 |
76 | * 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 |
77 | #if __GNUC__ >= 4 |
102 | # define attribute(x) __attribute__(x) |
78 | # define dSTACKLEVEL int stacklevel_dummy |
103 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
79 | # define STACKLEVEL __builtin_frame_address (0) |
104 | #else |
80 | #else |
105 | # define attribute(x) |
81 | # define dSTACKLEVEL volatile void *stacklevel |
106 | # define BARRIER |
82 | # define STACKLEVEL ((void *)&stacklevel) |
107 | #endif |
83 | #endif |
108 | |
84 | |
109 | #define NOINLINE attribute ((noinline)) |
85 | #define IN_DESTRUCT PL_dirty |
110 | |
86 | |
111 | #include "CoroAPI.h" |
87 | #include "CoroAPI.h" |
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88 | #define GCoroAPI (&coroapi) /* very sneaky */ |
112 | |
89 | |
113 | #ifdef USE_ITHREADS |
90 | #ifdef USE_ITHREADS |
114 | static perl_mutex coro_mutex; |
91 | # if CORO_PTHREAD |
115 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
92 | 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 |
93 | # endif |
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94 | #endif |
121 | |
95 | |
122 | /* helper storage struct for Coro::AIO */ |
96 | #ifdef __linux |
123 | struct io_state |
97 | # include <time.h> /* for timespec */ |
124 | { |
98 | # include <syscall.h> /* for SYS_* */ |
125 | int errorno; |
99 | # ifdef SYS_clock_gettime |
126 | I32 laststype; |
100 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
127 | int laststatval; |
101 | # define CORO_CLOCK_MONOTONIC 1 |
128 | Stat_t statcache; |
102 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
129 | }; |
103 | # endif |
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104 | #endif |
130 | |
105 | |
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106 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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107 | static void (*u2time)(pTHX_ UV ret[2]); |
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108 | |
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109 | /* we hijack an hopefully unused CV flag for our purposes */ |
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110 | #define CVf_SLF 0x4000 |
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111 | static OP *pp_slf (pTHX); |
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112 | static void slf_destroy (pTHX_ struct coro *coro); |
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113 | |
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114 | static U32 cctx_gen; |
131 | static size_t coro_stacksize = CORO_STACKSIZE; |
115 | static size_t cctx_stacksize = CORO_STACKSIZE; |
132 | static struct CoroAPI coroapi; |
116 | static struct CoroAPI coroapi; |
133 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
117 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
134 | static JMPENV *main_top_env; |
118 | static JMPENV *main_top_env; |
135 | static HV *coro_state_stash, *coro_stash; |
119 | static HV *coro_state_stash, *coro_stash; |
136 | static SV *coro_mortal; /* will be freed after next transfer */ |
120 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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121 | |
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122 | static AV *av_destroy; /* destruction queue */ |
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123 | static SV *sv_manager; /* the manager coro */ |
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124 | static SV *sv_idle; /* $Coro::idle */ |
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125 | |
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126 | static GV *irsgv; /* $/ */ |
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127 | static GV *stdoutgv; /* *STDOUT */ |
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128 | static SV *rv_diehook; |
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129 | static SV *rv_warnhook; |
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130 | static HV *hv_sig; /* %SIG */ |
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131 | |
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132 | /* async_pool helper stuff */ |
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133 | static SV *sv_pool_rss; |
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134 | static SV *sv_pool_size; |
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135 | static SV *sv_async_pool_idle; /* description string */ |
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136 | static AV *av_async_pool; /* idle pool */ |
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137 | static SV *sv_Coro; /* class string */ |
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138 | static CV *cv_pool_handler; |
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139 | |
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140 | /* Coro::AnyEvent */ |
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141 | static SV *sv_activity; |
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142 | |
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143 | /* enable processtime/realtime profiling */ |
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144 | static char enable_times; |
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145 | typedef U32 coro_ts[2]; |
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146 | static coro_ts time_real, time_cpu; |
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147 | static char times_valid; |
137 | |
148 | |
138 | static struct coro_cctx *cctx_first; |
149 | static struct coro_cctx *cctx_first; |
139 | static int cctx_count, cctx_idle; |
150 | static int cctx_count, cctx_idle; |
140 | |
151 | |
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152 | enum |
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153 | { |
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154 | CC_MAPPED = 0x01, |
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155 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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156 | CC_TRACE = 0x04, |
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157 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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158 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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159 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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160 | }; |
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161 | |
141 | /* this is a structure representing a c-level coroutine */ |
162 | /* this is a structure representing a c-level coroutine */ |
142 | typedef struct coro_cctx { |
163 | typedef struct coro_cctx |
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164 | { |
143 | struct coro_cctx *next; |
165 | struct coro_cctx *next; |
144 | |
166 | |
145 | /* the stack */ |
167 | /* the stack */ |
146 | void *sptr; |
168 | struct coro_stack stack; |
147 | size_t ssize; |
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148 | |
169 | |
149 | /* cpu state */ |
170 | /* cpu state */ |
150 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
171 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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172 | #ifndef NDEBUG |
151 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
173 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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174 | #endif |
152 | JMPENV *top_env; |
175 | JMPENV *top_env; |
153 | coro_context cctx; |
176 | coro_context cctx; |
154 | |
177 | |
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178 | U32 gen; |
155 | #if CORO_USE_VALGRIND |
179 | #if CORO_USE_VALGRIND |
156 | int valgrind_id; |
180 | int valgrind_id; |
157 | #endif |
181 | #endif |
158 | char inuse, mapped; |
182 | unsigned char flags; |
159 | } coro_cctx; |
183 | } coro_cctx; |
160 | |
184 | |
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185 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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186 | |
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187 | /*****************************************************************************/ |
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188 | |
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189 | static MGVTBL coro_state_vtbl; |
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190 | |
161 | enum { |
191 | enum |
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192 | { |
162 | CF_RUNNING = 0x0001, /* coroutine is running */ |
193 | CF_RUNNING = 0x0001, /* coroutine is running */ |
163 | CF_READY = 0x0002, /* coroutine is ready */ |
194 | CF_READY = 0x0002, /* coroutine is ready */ |
164 | CF_NEW = 0x0004, /* has never been switched to */ |
195 | CF_NEW = 0x0004, /* has never been switched to */ |
165 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
196 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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197 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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198 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
166 | }; |
199 | }; |
167 | |
200 | |
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201 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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202 | typedef struct |
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203 | { |
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204 | #define VARx(name,expr,type) type name; |
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205 | #include "state.h" |
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206 | } perl_slots; |
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207 | |
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208 | /* how many context stack entries do we need for perl_slots */ |
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209 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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210 | |
168 | /* this is a structure representing a perl-level coroutine */ |
211 | /* this is a structure representing a perl-level coroutine */ |
169 | struct coro { |
212 | struct coro |
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213 | { |
170 | /* the c coroutine allocated to this perl coroutine, if any */ |
214 | /* the C coroutine allocated to this perl coroutine, if any */ |
171 | coro_cctx *cctx; |
215 | coro_cctx *cctx; |
172 | |
216 | |
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217 | /* ready queue */ |
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218 | struct coro *next_ready; |
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219 | |
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220 | /* state data */ |
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221 | struct CoroSLF slf_frame; /* saved slf frame */ |
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222 | AV *mainstack; |
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223 | perl_slots *slot; /* basically the saved sp */ |
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224 | |
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225 | CV *startcv; /* the CV to execute */ |
173 | /* data associated with this coroutine (initial args) */ |
226 | 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 */ |
227 | int flags; /* CF_ flags */ |
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228 | HV *hv; /* the perl hash associated with this coro, if any */ |
178 | |
229 | |
179 | /* optionally saved, might be zero */ |
230 | /* statistics */ |
180 | AV *defav; /* @_ */ |
231 | 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 | |
232 | |
191 | /* coro process data */ |
233 | /* coro process data */ |
192 | int prio; |
234 | int prio; |
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235 | SV *except; /* exception to be thrown */ |
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236 | SV *rouse_cb; /* last rouse callback */ |
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237 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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238 | AV *status; /* the exit status list */ |
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239 | |
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240 | /* async_pool */ |
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241 | SV *saved_deffh; |
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242 | SV *invoke_cb; |
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243 | AV *invoke_av; |
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244 | |
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245 | /* on_enter/on_leave */ |
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246 | AV *on_enter; |
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247 | AV *on_leave; |
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248 | |
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249 | /* swap_sv */ |
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250 | AV *swap_sv; |
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251 | |
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252 | /* times */ |
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253 | coro_ts t_cpu, t_real; |
193 | |
254 | |
194 | /* linked list */ |
255 | /* linked list */ |
195 | struct coro *next, *prev; |
256 | struct coro *next, *prev; |
196 | HV *hv; /* the perl hash associated with this coro, if any */ |
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197 | }; |
257 | }; |
198 | |
258 | |
199 | typedef struct coro *Coro__State; |
259 | typedef struct coro *Coro__State; |
200 | typedef struct coro *Coro__State_or_hashref; |
260 | typedef struct coro *Coro__State_or_hashref; |
201 | |
261 | |
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262 | /* the following variables are effectively part of the perl context */ |
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263 | /* and get copied between struct coro and these variables */ |
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264 | /* the main reason we don't support windows process emulation */ |
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265 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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266 | |
202 | /** Coro ********************************************************************/ |
267 | /** Coro ********************************************************************/ |
203 | |
268 | |
204 | #define PRIO_MAX 3 |
269 | #define CORO_PRIO_MAX 3 |
205 | #define PRIO_HIGH 1 |
270 | #define CORO_PRIO_HIGH 1 |
206 | #define PRIO_NORMAL 0 |
271 | #define CORO_PRIO_NORMAL 0 |
207 | #define PRIO_LOW -1 |
272 | #define CORO_PRIO_LOW -1 |
208 | #define PRIO_IDLE -3 |
273 | #define CORO_PRIO_IDLE -3 |
209 | #define PRIO_MIN -4 |
274 | #define CORO_PRIO_MIN -4 |
210 | |
275 | |
211 | /* for Coro.pm */ |
276 | /* for Coro.pm */ |
212 | static SV *coro_current; |
277 | static SV *coro_current; |
213 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
278 | static SV *coro_readyhook; |
214 | static int coro_nready; |
279 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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280 | static CV *cv_coro_run; |
215 | static struct coro *coro_first; |
281 | static struct coro *coro_first; |
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282 | #define coro_nready coroapi.nready |
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283 | |
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284 | /** JIT *********************************************************************/ |
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285 | |
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286 | #if CORO_JIT |
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287 | /* APPLE doesn't have mmap though */ |
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288 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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289 | #ifndef CORO_JIT_TYPE |
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290 | #if ECB_AMD64 && CORO_JIT_UNIXY |
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291 | #define CORO_JIT_TYPE "amd64-unix" |
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292 | #elif __i386 && CORO_JIT_UNIXY |
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293 | #define CORO_JIT_TYPE "x86-unix" |
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294 | #endif |
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295 | #endif |
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296 | #endif |
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297 | |
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298 | #if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0 |
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299 | #undef CORO_JIT |
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300 | #endif |
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301 | |
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302 | #if CORO_JIT |
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303 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
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304 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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305 | #endif |
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306 | |
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307 | /** Coro::Select ************************************************************/ |
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308 | |
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309 | static OP *(*coro_old_pp_sselect) (pTHX); |
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310 | static SV *coro_select_select; |
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311 | |
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312 | /* horrible hack, but if it works... */ |
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313 | static OP * |
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314 | coro_pp_sselect (pTHX) |
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315 | { |
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316 | dSP; |
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317 | PUSHMARK (SP - 4); /* fake argument list */ |
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318 | XPUSHs (coro_select_select); |
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319 | PUTBACK; |
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320 | |
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321 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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322 | PL_op->op_flags |= OPf_STACKED; |
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323 | PL_op->op_private = 0; |
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324 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
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325 | } |
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326 | |
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327 | /** time stuff **************************************************************/ |
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328 | |
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329 | #ifdef HAS_GETTIMEOFDAY |
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330 | |
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331 | ecb_inline void |
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332 | coro_u2time (pTHX_ UV ret[2]) |
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333 | { |
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334 | struct timeval tv; |
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335 | gettimeofday (&tv, 0); |
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336 | |
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337 | ret [0] = tv.tv_sec; |
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338 | ret [1] = tv.tv_usec; |
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339 | } |
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340 | |
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341 | ecb_inline double |
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342 | coro_nvtime (void) |
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343 | { |
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344 | struct timeval tv; |
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345 | gettimeofday (&tv, 0); |
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346 | |
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347 | return tv.tv_sec + tv.tv_usec * 1e-6; |
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348 | } |
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349 | |
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350 | ecb_inline void |
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351 | time_init (pTHX) |
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352 | { |
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353 | nvtime = coro_nvtime; |
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354 | u2time = coro_u2time; |
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355 | } |
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356 | |
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357 | #else |
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358 | |
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359 | ecb_inline void |
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360 | time_init (pTHX) |
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361 | { |
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362 | SV **svp; |
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363 | |
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364 | require_pv ("Time/HiRes.pm"); |
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365 | |
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366 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
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367 | |
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368 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
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369 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
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370 | |
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371 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
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372 | |
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373 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
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374 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
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375 | } |
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376 | |
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377 | #endif |
216 | |
378 | |
217 | /** lowlevel stuff **********************************************************/ |
379 | /** lowlevel stuff **********************************************************/ |
218 | |
380 | |
219 | static AV * |
381 | static SV * ecb_noinline |
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382 | coro_get_sv (pTHX_ const char *name, int create) |
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383 | { |
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384 | #if PERL_VERSION_ATLEAST (5,10,0) |
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385 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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386 | get_sv (name, create); |
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387 | #endif |
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388 | return get_sv (name, create); |
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389 | } |
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390 | |
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391 | static AV * ecb_noinline |
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392 | coro_get_av (pTHX_ const char *name, int create) |
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393 | { |
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394 | #if PERL_VERSION_ATLEAST (5,10,0) |
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395 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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396 | get_av (name, create); |
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397 | #endif |
|
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398 | return get_av (name, create); |
|
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399 | } |
|
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400 | |
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401 | static HV * ecb_noinline |
|
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402 | coro_get_hv (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_hv (name, create); |
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407 | #endif |
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408 | return get_hv (name, create); |
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409 | } |
|
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410 | |
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411 | ecb_inline void |
|
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412 | coro_times_update (void) |
|
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413 | { |
|
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414 | #ifdef coro_clock_gettime |
|
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415 | struct timespec ts; |
|
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416 | |
|
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417 | ts.tv_sec = ts.tv_nsec = 0; |
|
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418 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
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419 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
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420 | |
|
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421 | ts.tv_sec = ts.tv_nsec = 0; |
|
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422 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
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423 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
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424 | #else |
|
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425 | dTHX; |
|
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426 | UV tv[2]; |
|
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427 | |
|
|
428 | u2time (aTHX_ tv); |
|
|
429 | time_real [0] = tv [0]; |
|
|
430 | time_real [1] = tv [1] * 1000; |
|
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431 | #endif |
|
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432 | } |
|
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433 | |
|
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434 | ecb_inline void |
|
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435 | coro_times_add (struct coro *c) |
|
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436 | { |
|
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437 | c->t_real [1] += time_real [1]; |
|
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438 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
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439 | c->t_real [0] += time_real [0]; |
|
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440 | |
|
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441 | c->t_cpu [1] += time_cpu [1]; |
|
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442 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
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443 | c->t_cpu [0] += time_cpu [0]; |
|
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444 | } |
|
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445 | |
|
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446 | ecb_inline void |
|
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447 | coro_times_sub (struct coro *c) |
|
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448 | { |
|
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449 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
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450 | c->t_real [1] -= time_real [1]; |
|
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451 | c->t_real [0] -= time_real [0]; |
|
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452 | |
|
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453 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
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454 | c->t_cpu [1] -= time_cpu [1]; |
|
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455 | c->t_cpu [0] -= time_cpu [0]; |
|
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456 | } |
|
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457 | |
|
|
458 | /*****************************************************************************/ |
|
|
459 | /* magic glue */ |
|
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460 | |
|
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461 | #define CORO_MAGIC_type_cv 26 |
|
|
462 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
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463 | |
|
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464 | #define CORO_MAGIC_NN(sv, type) \ |
|
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465 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
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466 | ? SvMAGIC (sv) \ |
|
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467 | : mg_find (sv, type)) |
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468 | |
|
|
469 | #define CORO_MAGIC(sv, type) \ |
|
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470 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
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471 | ? CORO_MAGIC_NN (sv, type) \ |
|
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472 | : 0) |
|
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473 | |
|
|
474 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
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475 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
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476 | |
|
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477 | ecb_inline MAGIC * |
|
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478 | SvSTATEhv_p (pTHX_ SV *coro) |
|
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479 | { |
|
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480 | MAGIC *mg; |
|
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481 | |
|
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482 | if (ecb_expect_true ( |
|
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483 | SvTYPE (coro) == SVt_PVHV |
|
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484 | && (mg = CORO_MAGIC_state (coro)) |
|
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485 | && mg->mg_virtual == &coro_state_vtbl |
|
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486 | )) |
|
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487 | return mg; |
|
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488 | |
|
|
489 | return 0; |
|
|
490 | } |
|
|
491 | |
|
|
492 | ecb_inline struct coro * |
|
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493 | SvSTATE_ (pTHX_ SV *coro) |
|
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494 | { |
|
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495 | MAGIC *mg; |
|
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496 | |
|
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497 | if (SvROK (coro)) |
|
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498 | coro = SvRV (coro); |
|
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499 | |
|
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500 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
501 | if (!mg) |
|
|
502 | croak ("Coro::State object required"); |
|
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503 | |
|
|
504 | return (struct coro *)mg->mg_ptr; |
|
|
505 | } |
|
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506 | |
|
|
507 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
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508 | |
|
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509 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
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510 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
511 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
512 | |
|
|
513 | /*****************************************************************************/ |
|
|
514 | /* padlist management and caching */ |
|
|
515 | |
|
|
516 | ecb_inline PADLIST * |
220 | coro_clone_padlist (pTHX_ CV *cv) |
517 | coro_derive_padlist (pTHX_ CV *cv) |
221 | { |
518 | { |
222 | AV *padlist = CvPADLIST (cv); |
519 | PADLIST *padlist = CvPADLIST (cv); |
223 | AV *newpadlist, *newpad; |
520 | PADLIST *newpadlist; |
|
|
521 | PAD *newpad; |
|
|
522 | PADOFFSET off = PadlistMAX (padlist) + 1; |
224 | |
523 | |
225 | newpadlist = newAV (); |
524 | #if NEWPADAPI |
|
|
525 | |
|
|
526 | /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */ |
|
|
527 | /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */ |
|
|
528 | while (!PadlistARRAY (padlist)[off - 1]) |
|
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529 | --off; |
|
|
530 | |
|
|
531 | Perl_pad_push (aTHX_ padlist, off); |
|
|
532 | |
|
|
533 | newpad = PadlistARRAY (padlist)[off]; |
|
|
534 | PadlistARRAY (padlist)[off] = 0; |
|
|
535 | |
|
|
536 | #else |
|
|
537 | |
|
|
538 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
539 | Perl_pad_push (aTHX_ padlist, off); |
|
|
540 | #else |
|
|
541 | Perl_pad_push (aTHX_ padlist, off, 1); |
|
|
542 | #endif |
|
|
543 | |
|
|
544 | newpad = PadlistARRAY (padlist)[off]; |
|
|
545 | PadlistMAX (padlist) = off - 1; |
|
|
546 | |
|
|
547 | #endif |
|
|
548 | |
|
|
549 | newPADLIST (newpadlist); |
|
|
550 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
|
551 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
226 | AvREAL_off (newpadlist); |
552 | AvREAL_off (newpadlist); |
227 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
228 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
229 | #else |
|
|
230 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
231 | #endif |
553 | #endif |
232 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
233 | --AvFILLp (padlist); |
|
|
234 | |
554 | |
235 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
555 | /* Already extended to 2 elements by newPADLIST. */ |
236 | av_store (newpadlist, 1, (SV *)newpad); |
556 | PadlistMAX (newpadlist) = 1; |
|
|
557 | PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist)); |
|
|
558 | PadlistARRAY (newpadlist)[1] = newpad; |
237 | |
559 | |
238 | return newpadlist; |
560 | return newpadlist; |
239 | } |
561 | } |
240 | |
562 | |
241 | static void |
563 | ecb_inline void |
242 | free_padlist (pTHX_ AV *padlist) |
564 | free_padlist (pTHX_ PADLIST *padlist) |
243 | { |
565 | { |
244 | /* may be during global destruction */ |
566 | /* may be during global destruction */ |
245 | if (SvREFCNT (padlist)) |
567 | if (!IN_DESTRUCT) |
246 | { |
568 | { |
247 | I32 i = AvFILLp (padlist); |
569 | I32 i = PadlistMAX (padlist); |
248 | while (i >= 0) |
570 | |
|
|
571 | while (i > 0) /* special-case index 0 */ |
249 | { |
572 | { |
250 | SV **svp = av_fetch (padlist, i--, FALSE); |
573 | /* we try to be extra-careful here */ |
|
|
574 | PAD *pad = PadlistARRAY (padlist)[i--]; |
|
|
575 | |
251 | if (svp) |
576 | if (pad) |
252 | { |
577 | { |
253 | SV *sv; |
578 | I32 j = PadMAX (pad); |
254 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
579 | |
|
|
580 | while (j >= 0) |
255 | SvREFCNT_dec (sv); |
581 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
256 | |
582 | |
|
|
583 | PadMAX (pad) = -1; |
257 | SvREFCNT_dec (*svp); |
584 | SvREFCNT_dec (pad); |
258 | } |
585 | } |
259 | } |
586 | } |
260 | |
587 | |
|
|
588 | SvREFCNT_dec (PadlistNAMES (padlist)); |
|
|
589 | |
|
|
590 | #if NEWPADAPI |
|
|
591 | Safefree (PadlistARRAY (padlist)); |
|
|
592 | Safefree (padlist); |
|
|
593 | #else |
|
|
594 | AvFILLp (padlist) = -1; |
|
|
595 | AvREAL_off (padlist); |
261 | SvREFCNT_dec ((SV*)padlist); |
596 | SvREFCNT_dec ((SV*)padlist); |
|
|
597 | #endif |
262 | } |
598 | } |
263 | } |
599 | } |
264 | |
600 | |
265 | static int |
601 | static int |
266 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
602 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
267 | { |
603 | { |
268 | AV *padlist; |
604 | PADLIST *padlist; |
269 | AV *av = (AV *)mg->mg_obj; |
605 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
606 | size_t len = *(size_t *)mg->mg_ptr; |
270 | |
607 | |
271 | /* casting is fun. */ |
608 | /* perl manages to free our internal AV and _then_ call us */ |
272 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
609 | if (IN_DESTRUCT) |
|
|
610 | return 0; |
|
|
611 | |
|
|
612 | while (len--) |
273 | free_padlist (aTHX_ padlist); |
613 | free_padlist (aTHX_ padlists[len]); |
274 | |
|
|
275 | SvREFCNT_dec (av); |
|
|
276 | |
614 | |
277 | return 0; |
615 | return 0; |
278 | } |
616 | } |
279 | |
617 | |
280 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
618 | static MGVTBL coro_cv_vtbl = { |
281 | |
619 | 0, 0, 0, 0, |
282 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
620 | coro_cv_free |
283 | |
621 | }; |
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 | |
622 | |
291 | /* the next two functions merely cache the padlists */ |
623 | /* the next two functions merely cache the padlists */ |
292 | static void |
624 | ecb_inline void |
293 | get_padlist (pTHX_ CV *cv) |
625 | get_padlist (pTHX_ CV *cv) |
294 | { |
626 | { |
295 | MAGIC *mg = CORO_MAGIC (cv); |
627 | MAGIC *mg = CORO_MAGIC_cv (cv); |
296 | AV *av; |
628 | size_t *lenp; |
297 | |
629 | |
298 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
630 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
299 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
631 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
300 | else |
632 | else |
301 | { |
633 | { |
302 | #if CORO_PREFER_PERL_FUNCTIONS |
634 | #if CORO_PREFER_PERL_FUNCTIONS |
303 | /* this is probably cleaner, but also slower? */ |
635 | /* this is probably cleaner? but also slower! */ |
|
|
636 | /* in practise, it seems to be less stable */ |
304 | CV *cp = Perl_cv_clone (cv); |
637 | CV *cp = Perl_cv_clone (aTHX_ cv); |
305 | CvPADLIST (cv) = CvPADLIST (cp); |
638 | CvPADLIST (cv) = CvPADLIST (cp); |
306 | CvPADLIST (cp) = 0; |
639 | CvPADLIST (cp) = 0; |
307 | SvREFCNT_dec (cp); |
640 | SvREFCNT_dec (cp); |
308 | #else |
641 | #else |
309 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
642 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
310 | #endif |
643 | #endif |
311 | } |
644 | } |
312 | } |
645 | } |
313 | |
646 | |
314 | static void |
647 | ecb_inline void |
315 | put_padlist (pTHX_ CV *cv) |
648 | put_padlist (pTHX_ CV *cv) |
316 | { |
649 | { |
317 | MAGIC *mg = CORO_MAGIC (cv); |
650 | MAGIC *mg = CORO_MAGIC_cv (cv); |
318 | AV *av; |
|
|
319 | |
651 | |
320 | if (!mg) |
652 | 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 | } |
653 | { |
|
|
654 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
655 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
656 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
657 | } |
|
|
658 | else |
|
|
659 | Renew (mg->mg_ptr, |
|
|
660 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
661 | char); |
327 | |
662 | |
328 | av = (AV *)mg->mg_obj; |
663 | ((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 | } |
664 | } |
335 | |
665 | |
336 | /** load & save, init *******************************************************/ |
666 | /** load & save, init *******************************************************/ |
337 | |
667 | |
338 | #define SB do { |
668 | ecb_inline void |
339 | #define SE } while (0) |
669 | swap_sv (SV *a, SV *b) |
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670 | { |
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|
671 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
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672 | SV tmp; |
340 | |
673 | |
341 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
674 | /* swap sv_any */ |
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|
675 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
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676 | |
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677 | /* swap sv_flags */ |
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678 | SvFLAGS (&tmp) = SvFLAGS (a); |
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679 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
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680 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
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681 | |
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682 | #if PERL_VERSION_ATLEAST (5,10,0) |
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683 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
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684 | * is much faster, so no quarrels here. alternatively, we could |
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685 | * sv_upgrade to avoid this. |
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686 | */ |
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687 | { |
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688 | /* swap sv_u */ |
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689 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
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690 | |
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691 | /* if SvANY points to the head, we need to adjust the pointers, |
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692 | * as the pointer for a still points to b, and maybe vice versa. |
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693 | */ |
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|
694 | #define svany_in_head(type) \ |
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695 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
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696 | |
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697 | if (svany_in_head (SvTYPE (a))) |
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698 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
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699 | |
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700 | if (svany_in_head (SvTYPE (b))) |
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701 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
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702 | } |
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|
703 | #endif |
|
|
704 | } |
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|
705 | |
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706 | /* swap sv heads, at least logically */ |
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|
707 | static void |
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|
708 | swap_svs (pTHX_ Coro__State c) |
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709 | { |
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710 | int i; |
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|
711 | |
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712 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
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713 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
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714 | } |
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715 | |
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716 | #define SWAP_SVS(coro) \ |
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717 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
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718 | swap_svs (aTHX_ (coro)) |
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|
719 | |
|
|
720 | static void |
|
|
721 | on_enterleave_call (pTHX_ SV *cb); |
342 | |
722 | |
343 | static void |
723 | static void |
344 | load_perl (pTHX_ Coro__State c) |
724 | load_perl (pTHX_ Coro__State c) |
345 | { |
725 | { |
346 | #define VAR(name,type) PL_ ## name = c->name; |
726 | perl_slots *slot = c->slot; |
|
|
727 | c->slot = 0; |
|
|
728 | |
|
|
729 | PL_mainstack = c->mainstack; |
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|
730 | |
|
|
731 | #if CORO_JIT |
|
|
732 | load_perl_slots (slot); |
|
|
733 | #else |
|
|
734 | #define VARx(name,expr,type) expr = slot->name; |
347 | # include "state.h" |
735 | #include "state.h" |
348 | #undef VAR |
736 | #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 | { |
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|
357 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
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|
358 | { |
|
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359 | SvREFCNT_dec (c->irssv); |
|
|
360 | c->irssv = 0; |
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|
361 | } |
|
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362 | else |
|
|
363 | { |
|
|
364 | REPLACE_SV (PL_rs, c->irssv); |
|
|
365 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
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366 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
367 | } |
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|
368 | } |
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|
369 | |
737 | |
370 | { |
738 | { |
371 | dSP; |
739 | dSP; |
|
|
740 | |
372 | CV *cv; |
741 | CV *cv; |
373 | |
742 | |
374 | /* now do the ugly restore mess */ |
743 | /* now do the ugly restore mess */ |
375 | while ((cv = (CV *)POPs)) |
744 | while (ecb_expect_true (cv = (CV *)POPs)) |
376 | { |
745 | { |
377 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
746 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
378 | CvDEPTH (cv) = PTR2IV (POPs); |
747 | CvDEPTH (cv) = PTR2IV (POPs); |
379 | CvPADLIST (cv) = (AV *)POPs; |
748 | CvPADLIST (cv) = (PADLIST *)POPs; |
380 | } |
749 | } |
381 | |
750 | |
382 | PUTBACK; |
751 | PUTBACK; |
383 | } |
752 | } |
|
|
753 | |
|
|
754 | slf_frame = c->slf_frame; |
|
|
755 | CORO_THROW = c->except; |
|
|
756 | |
|
|
757 | if (ecb_expect_false (enable_times)) |
|
|
758 | { |
|
|
759 | if (ecb_expect_false (!times_valid)) |
|
|
760 | coro_times_update (); |
|
|
761 | |
|
|
762 | coro_times_sub (c); |
|
|
763 | } |
|
|
764 | |
|
|
765 | if (ecb_expect_false (c->on_enter)) |
|
|
766 | { |
|
|
767 | int i; |
|
|
768 | |
|
|
769 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
770 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
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|
771 | } |
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|
772 | |
|
|
773 | SWAP_SVS (c); |
384 | } |
774 | } |
385 | |
775 | |
386 | static void |
776 | static void |
387 | save_perl (pTHX_ Coro__State c) |
777 | save_perl (pTHX_ Coro__State c) |
388 | { |
778 | { |
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|
779 | SWAP_SVS (c); |
|
|
780 | |
|
|
781 | if (ecb_expect_false (c->on_leave)) |
|
|
782 | { |
|
|
783 | int i; |
|
|
784 | |
|
|
785 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
786 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
787 | } |
|
|
788 | |
|
|
789 | times_valid = 0; |
|
|
790 | |
|
|
791 | if (ecb_expect_false (enable_times)) |
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|
792 | { |
|
|
793 | coro_times_update (); times_valid = 1; |
|
|
794 | coro_times_add (c); |
|
|
795 | } |
|
|
796 | |
|
|
797 | c->except = CORO_THROW; |
|
|
798 | c->slf_frame = slf_frame; |
|
|
799 | |
389 | { |
800 | { |
390 | dSP; |
801 | dSP; |
391 | I32 cxix = cxstack_ix; |
802 | I32 cxix = cxstack_ix; |
392 | PERL_CONTEXT *ccstk = cxstack; |
803 | PERL_CONTEXT *ccstk = cxstack; |
393 | PERL_SI *top_si = PL_curstackinfo; |
804 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
399 | |
810 | |
400 | XPUSHs (Nullsv); |
811 | XPUSHs (Nullsv); |
401 | /* this loop was inspired by pp_caller */ |
812 | /* this loop was inspired by pp_caller */ |
402 | for (;;) |
813 | for (;;) |
403 | { |
814 | { |
404 | while (cxix >= 0) |
815 | while (ecb_expect_true (cxix >= 0)) |
405 | { |
816 | { |
406 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
817 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
407 | |
818 | |
408 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
819 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
409 | { |
820 | { |
410 | CV *cv = cx->blk_sub.cv; |
821 | CV *cv = cx->blk_sub.cv; |
411 | |
822 | |
412 | if (CvDEPTH (cv)) |
823 | if (ecb_expect_true (CvDEPTH (cv))) |
413 | { |
824 | { |
414 | EXTEND (SP, 3); |
825 | EXTEND (SP, 3); |
415 | PUSHs ((SV *)CvPADLIST (cv)); |
826 | PUSHs ((SV *)CvPADLIST (cv)); |
416 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
827 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
417 | PUSHs ((SV *)cv); |
828 | PUSHs ((SV *)cv); |
418 | |
829 | |
419 | CvDEPTH (cv) = 0; |
830 | CvDEPTH (cv) = 0; |
420 | get_padlist (aTHX_ cv); |
831 | get_padlist (aTHX_ cv); |
421 | } |
832 | } |
422 | } |
833 | } |
423 | } |
834 | } |
424 | |
835 | |
425 | if (top_si->si_type == PERLSI_MAIN) |
836 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
426 | break; |
837 | break; |
427 | |
838 | |
428 | top_si = top_si->si_prev; |
839 | top_si = top_si->si_prev; |
429 | ccstk = top_si->si_cxstack; |
840 | ccstk = top_si->si_cxstack; |
430 | cxix = top_si->si_cxix; |
841 | cxix = top_si->si_cxix; |
431 | } |
842 | } |
432 | |
843 | |
433 | PUTBACK; |
844 | PUTBACK; |
434 | } |
845 | } |
435 | |
846 | |
436 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
847 | /* allocate some space on the context stack for our purposes */ |
437 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
848 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
438 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
849 | { |
439 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
850 | unsigned int i; |
440 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
|
|
441 | |
851 | |
442 | #define VAR(name,type)c->name = PL_ ## name; |
852 | for (i = 0; i < SLOT_COUNT; ++i) |
|
|
853 | CXINC; |
|
|
854 | |
|
|
855 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
856 | } |
|
|
857 | |
|
|
858 | c->mainstack = PL_mainstack; |
|
|
859 | |
|
|
860 | { |
|
|
861 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
862 | |
|
|
863 | #if CORO_JIT |
|
|
864 | save_perl_slots (slot); |
|
|
865 | #else |
|
|
866 | #define VARx(name,expr,type) slot->name = expr; |
443 | # include "state.h" |
867 | #include "state.h" |
444 | #undef VAR |
868 | #endif |
|
|
869 | } |
445 | } |
870 | } |
446 | |
871 | |
447 | /* |
872 | /* |
448 | * allocate various perl stacks. This is an exact copy |
873 | * allocate various perl stacks. This is almost an exact copy |
449 | * of perl.c:init_stacks, except that it uses less memory |
874 | * of perl.c:init_stacks, except that it uses less memory |
450 | * on the (sometimes correct) assumption that coroutines do |
875 | * on the (sometimes correct) assumption that coroutines do |
451 | * not usually need a lot of stackspace. |
876 | * not usually need a lot of stackspace. |
452 | */ |
877 | */ |
453 | #if CORO_PREFER_PERL_FUNCTIONS |
878 | #if CORO_PREFER_PERL_FUNCTIONS |
454 | # define coro_init_stacks init_stacks |
879 | # define coro_init_stacks(thx) init_stacks () |
455 | #else |
880 | #else |
456 | static void |
881 | static void |
457 | coro_init_stacks (pTHX) |
882 | coro_init_stacks (pTHX) |
458 | { |
883 | { |
459 | PL_curstackinfo = new_stackinfo(64, 6); |
884 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
460 | PL_curstackinfo->si_type = PERLSI_MAIN; |
885 | PL_curstackinfo->si_type = PERLSI_MAIN; |
461 | PL_curstack = PL_curstackinfo->si_stack; |
886 | PL_curstack = PL_curstackinfo->si_stack; |
462 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
887 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
463 | |
888 | |
464 | PL_stack_base = AvARRAY(PL_curstack); |
889 | PL_stack_base = AvARRAY(PL_curstack); |
465 | PL_stack_sp = PL_stack_base; |
890 | PL_stack_sp = PL_stack_base; |
466 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
891 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
467 | |
892 | |
468 | New(50,PL_tmps_stack,64,SV*); |
893 | New(50,PL_tmps_stack,32,SV*); |
469 | PL_tmps_floor = -1; |
894 | PL_tmps_floor = -1; |
470 | PL_tmps_ix = -1; |
895 | PL_tmps_ix = -1; |
471 | PL_tmps_max = 64; |
896 | PL_tmps_max = 32; |
472 | |
897 | |
473 | New(54,PL_markstack,16,I32); |
898 | New(54,PL_markstack,16,I32); |
474 | PL_markstack_ptr = PL_markstack; |
899 | PL_markstack_ptr = PL_markstack; |
475 | PL_markstack_max = PL_markstack + 16; |
900 | PL_markstack_max = PL_markstack + 16; |
476 | |
901 | |
477 | #ifdef SET_MARK_OFFSET |
902 | #ifdef SET_MARK_OFFSET |
478 | SET_MARK_OFFSET; |
903 | SET_MARK_OFFSET; |
479 | #endif |
904 | #endif |
480 | |
905 | |
481 | New(54,PL_scopestack,16,I32); |
906 | New(54,PL_scopestack,8,I32); |
482 | PL_scopestack_ix = 0; |
907 | PL_scopestack_ix = 0; |
483 | PL_scopestack_max = 16; |
908 | PL_scopestack_max = 8; |
|
|
909 | #if HAS_SCOPESTACK_NAME |
|
|
910 | New(54,PL_scopestack_name,8,const char*); |
|
|
911 | #endif |
484 | |
912 | |
485 | New(54,PL_savestack,64,ANY); |
913 | New(54,PL_savestack,24,ANY); |
486 | PL_savestack_ix = 0; |
914 | PL_savestack_ix = 0; |
487 | PL_savestack_max = 64; |
915 | PL_savestack_max = 24; |
488 | |
916 | |
489 | #if !PERL_VERSION_ATLEAST (5,9,0) |
917 | #if !PERL_VERSION_ATLEAST (5,10,0) |
490 | New(54,PL_retstack,4,OP*); |
918 | New(54,PL_retstack,4,OP*); |
491 | PL_retstack_ix = 0; |
919 | PL_retstack_ix = 0; |
492 | PL_retstack_max = 4; |
920 | PL_retstack_max = 4; |
493 | #endif |
921 | #endif |
494 | } |
922 | } |
… | |
… | |
496 | |
924 | |
497 | /* |
925 | /* |
498 | * destroy the stacks, the callchain etc... |
926 | * destroy the stacks, the callchain etc... |
499 | */ |
927 | */ |
500 | static void |
928 | static void |
501 | coro_destroy_stacks (pTHX) |
929 | coro_destruct_stacks (pTHX) |
502 | { |
930 | { |
503 | if (!IN_DESTRUCT) |
|
|
504 | { |
|
|
505 | /* restore all saved variables and stuff */ |
|
|
506 | LEAVE_SCOPE (0); |
|
|
507 | assert (PL_tmps_floor == -1); |
|
|
508 | |
|
|
509 | /* free all temporaries */ |
|
|
510 | FREETMPS; |
|
|
511 | assert (PL_tmps_ix == -1); |
|
|
512 | |
|
|
513 | /* unwind all extra stacks */ |
|
|
514 | POPSTACK_TO (PL_mainstack); |
|
|
515 | |
|
|
516 | /* unwind main stack */ |
|
|
517 | dounwind (-1); |
|
|
518 | } |
|
|
519 | |
|
|
520 | while (PL_curstackinfo->si_next) |
931 | while (PL_curstackinfo->si_next) |
521 | PL_curstackinfo = PL_curstackinfo->si_next; |
932 | PL_curstackinfo = PL_curstackinfo->si_next; |
522 | |
933 | |
523 | while (PL_curstackinfo) |
934 | while (PL_curstackinfo) |
524 | { |
935 | { |
… | |
… | |
533 | } |
944 | } |
534 | |
945 | |
535 | Safefree (PL_tmps_stack); |
946 | Safefree (PL_tmps_stack); |
536 | Safefree (PL_markstack); |
947 | Safefree (PL_markstack); |
537 | Safefree (PL_scopestack); |
948 | Safefree (PL_scopestack); |
|
|
949 | #if HAS_SCOPESTACK_NAME |
|
|
950 | Safefree (PL_scopestack_name); |
|
|
951 | #endif |
538 | Safefree (PL_savestack); |
952 | Safefree (PL_savestack); |
539 | #if !PERL_VERSION_ATLEAST (5,9,0) |
953 | #if !PERL_VERSION_ATLEAST (5,10,0) |
540 | Safefree (PL_retstack); |
954 | Safefree (PL_retstack); |
541 | #endif |
955 | #endif |
542 | } |
956 | } |
543 | |
957 | |
|
|
958 | #define CORO_RSS \ |
|
|
959 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
960 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
961 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
962 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
963 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
964 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
965 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
966 | |
544 | static size_t |
967 | static size_t |
545 | coro_rss (struct coro *coro) |
968 | coro_rss (pTHX_ struct coro *coro) |
546 | { |
969 | { |
547 | size_t rss = sizeof (coro); |
970 | size_t rss = sizeof (*coro); |
548 | |
971 | |
549 | if (coro->mainstack) |
972 | if (coro->mainstack) |
550 | { |
973 | { |
551 | if (coro->flags & CF_RUNNING) |
974 | if (coro->flags & CF_RUNNING) |
552 | { |
975 | { |
553 | #define VAR(name,type)coro->name = PL_ ## name; |
976 | #define SYM(sym) PL_ ## sym |
554 | # include "state.h" |
977 | CORO_RSS; |
555 | #undef VAR |
978 | #undef SYM |
556 | } |
979 | } |
557 | |
980 | else |
558 | rss += sizeof (coro->curstackinfo); |
981 | { |
559 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
982 | #define SYM(sym) coro->slot->sym |
560 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
983 | CORO_RSS; |
561 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
984 | #undef SYM |
562 | rss += coro->tmps_max * sizeof (SV *); |
985 | } |
563 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
564 | rss += coro->scopestack_max * sizeof (I32); |
|
|
565 | rss += coro->savestack_max * sizeof (ANY); |
|
|
566 | |
|
|
567 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
568 | rss += coro->retstack_max * sizeof (OP *); |
|
|
569 | #endif |
|
|
570 | } |
986 | } |
571 | |
987 | |
572 | return rss; |
988 | return rss; |
573 | } |
989 | } |
574 | |
990 | |
575 | /** coroutine stack handling ************************************************/ |
991 | /** coroutine stack handling ************************************************/ |
576 | |
992 | |
|
|
993 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
994 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
995 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
996 | |
|
|
997 | /* apparently < 5.8.8 */ |
|
|
998 | #ifndef MgPV_nolen_const |
|
|
999 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
1000 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
1001 | (const char*)(mg)->mg_ptr) |
|
|
1002 | #endif |
|
|
1003 | |
|
|
1004 | /* |
|
|
1005 | * This overrides the default magic get method of %SIG elements. |
|
|
1006 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
1007 | * and instead of trying to save and restore the hash elements (extremely slow), |
|
|
1008 | * we just provide our own readback here. |
|
|
1009 | */ |
|
|
1010 | static int ecb_cold |
|
|
1011 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
1012 | { |
|
|
1013 | const char *s = MgPV_nolen_const (mg); |
|
|
1014 | |
|
|
1015 | if (*s == '_') |
|
|
1016 | { |
|
|
1017 | SV **svp = 0; |
|
|
1018 | |
|
|
1019 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1020 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1021 | |
|
|
1022 | if (svp) |
|
|
1023 | { |
|
|
1024 | SV *ssv; |
|
|
1025 | |
|
|
1026 | if (!*svp) |
|
|
1027 | ssv = &PL_sv_undef; |
|
|
1028 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1029 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1030 | else |
|
|
1031 | ssv = *svp; |
|
|
1032 | |
|
|
1033 | sv_setsv (sv, ssv); |
|
|
1034 | return 0; |
|
|
1035 | } |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | static int ecb_cold |
|
|
1042 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
1043 | { |
|
|
1044 | const char *s = MgPV_nolen_const (mg); |
|
|
1045 | |
|
|
1046 | if (*s == '_') |
|
|
1047 | { |
|
|
1048 | SV **svp = 0; |
|
|
1049 | |
|
|
1050 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1051 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1052 | |
|
|
1053 | if (svp) |
|
|
1054 | { |
|
|
1055 | SV *old = *svp; |
|
|
1056 | *svp = 0; |
|
|
1057 | SvREFCNT_dec (old); |
|
|
1058 | return 0; |
|
|
1059 | } |
|
|
1060 | } |
|
|
1061 | |
|
|
1062 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | static int ecb_cold |
|
|
1066 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1067 | { |
|
|
1068 | const char *s = MgPV_nolen_const (mg); |
|
|
1069 | |
|
|
1070 | if (*s == '_') |
|
|
1071 | { |
|
|
1072 | SV **svp = 0; |
|
|
1073 | |
|
|
1074 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1075 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1076 | |
|
|
1077 | if (svp) |
|
|
1078 | { |
|
|
1079 | SV *old = *svp; |
|
|
1080 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1081 | SvREFCNT_dec (old); |
|
|
1082 | return 0; |
|
|
1083 | } |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | static void |
|
|
1090 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1091 | { |
|
|
1092 | /* kind of mega-hacky, but works */ |
|
|
1093 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1094 | } |
|
|
1095 | |
577 | static void |
1096 | static int |
|
|
1097 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1098 | { |
|
|
1099 | return 0; |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | static int |
|
|
1103 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1104 | { |
|
|
1105 | return 1; |
|
|
1106 | } |
|
|
1107 | |
|
|
1108 | static UNOP init_perl_op; |
|
|
1109 | |
|
|
1110 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
578 | setup_coro (pTHX_ struct coro *coro) |
1111 | init_perl (pTHX_ struct coro *coro) |
579 | { |
1112 | { |
580 | /* |
1113 | /* |
581 | * emulate part of the perl startup here. |
1114 | * emulate part of the perl startup here. |
582 | */ |
1115 | */ |
583 | coro_init_stacks (aTHX); |
1116 | coro_init_stacks (aTHX); |
584 | |
1117 | |
|
|
1118 | PL_runops = RUNOPS_DEFAULT; |
585 | PL_curcop = &PL_compiling; |
1119 | PL_curcop = &PL_compiling; |
586 | PL_in_eval = EVAL_NULL; |
1120 | PL_in_eval = EVAL_NULL; |
587 | PL_comppad = 0; |
1121 | PL_comppad = 0; |
|
|
1122 | PL_comppad_name = 0; |
|
|
1123 | PL_comppad_name_fill = 0; |
|
|
1124 | PL_comppad_name_floor = 0; |
588 | PL_curpm = 0; |
1125 | PL_curpm = 0; |
|
|
1126 | PL_curpad = 0; |
589 | PL_localizing = 0; |
1127 | PL_localizing = 0; |
590 | PL_dirty = 0; |
|
|
591 | PL_restartop = 0; |
1128 | PL_restartop = 0; |
|
|
1129 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1130 | PL_parser = 0; |
|
|
1131 | #endif |
|
|
1132 | PL_hints = 0; |
|
|
1133 | |
|
|
1134 | /* recreate the die/warn hooks */ |
|
|
1135 | PL_diehook = SvREFCNT_inc (rv_diehook); |
|
|
1136 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
|
|
1137 | |
|
|
1138 | GvSV (PL_defgv) = newSV (0); |
|
|
1139 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
1140 | GvSV (PL_errgv) = newSV (0); |
|
|
1141 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1142 | GvHV (PL_hintgv) = 0; |
|
|
1143 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
1144 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
592 | |
1145 | |
593 | { |
1146 | { |
594 | dSP; |
1147 | dSP; |
595 | LOGOP myop; |
1148 | UNOP myop; |
596 | |
1149 | |
597 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
598 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
599 | |
|
|
600 | Zero (&myop, 1, LOGOP); |
1150 | Zero (&myop, 1, UNOP); |
601 | myop.op_next = Nullop; |
1151 | myop.op_next = Nullop; |
|
|
1152 | myop.op_type = OP_ENTERSUB; |
602 | myop.op_flags = OPf_WANT_VOID; |
1153 | myop.op_flags = OPf_WANT_VOID; |
603 | |
1154 | |
604 | PUSHMARK (SP); |
1155 | PUSHMARK (SP); |
605 | XPUSHs (av_shift (GvAV (PL_defgv))); |
1156 | PUSHs ((SV *)coro->startcv); |
606 | PUTBACK; |
1157 | PUTBACK; |
607 | PL_op = (OP *)&myop; |
1158 | PL_op = (OP *)&myop; |
608 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1159 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
609 | SPAGAIN; |
|
|
610 | } |
1160 | } |
611 | |
1161 | |
612 | ENTER; /* necessary e.g. for dounwind */ |
1162 | /* this newly created coroutine might be run on an existing cctx which most |
613 | } |
1163 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1164 | */ |
|
|
1165 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1166 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1167 | slf_frame.destroy = 0; |
614 | |
1168 | |
|
|
1169 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1170 | init_perl_op.op_next = PL_op; |
|
|
1171 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1172 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1173 | /* no flags etc. required, as an init function won't be called */ |
|
|
1174 | |
|
|
1175 | PL_op = (OP *)&init_perl_op; |
|
|
1176 | |
|
|
1177 | /* copy throw, in case it was set before init_perl */ |
|
|
1178 | CORO_THROW = coro->except; |
|
|
1179 | |
|
|
1180 | SWAP_SVS (coro); |
|
|
1181 | |
|
|
1182 | if (ecb_expect_false (enable_times)) |
|
|
1183 | { |
|
|
1184 | coro_times_update (); |
|
|
1185 | coro_times_sub (coro); |
|
|
1186 | } |
|
|
1187 | } |
|
|
1188 | |
615 | static void |
1189 | static void |
|
|
1190 | coro_unwind_stacks (pTHX) |
|
|
1191 | { |
|
|
1192 | if (!IN_DESTRUCT) |
|
|
1193 | { |
|
|
1194 | /* restore all saved variables and stuff */ |
|
|
1195 | LEAVE_SCOPE (0); |
|
|
1196 | assert (PL_tmps_floor == -1); |
|
|
1197 | |
|
|
1198 | /* free all temporaries */ |
|
|
1199 | FREETMPS; |
|
|
1200 | assert (PL_tmps_ix == -1); |
|
|
1201 | |
|
|
1202 | /* unwind all extra stacks */ |
|
|
1203 | POPSTACK_TO (PL_mainstack); |
|
|
1204 | |
|
|
1205 | /* unwind main stack */ |
|
|
1206 | dounwind (-1); |
|
|
1207 | } |
|
|
1208 | } |
|
|
1209 | |
|
|
1210 | static void |
|
|
1211 | destroy_perl (pTHX_ struct coro *coro) |
|
|
1212 | { |
|
|
1213 | SV *svf [9]; |
|
|
1214 | |
|
|
1215 | { |
|
|
1216 | SV *old_current = SvRV (coro_current); |
|
|
1217 | struct coro *current = SvSTATE (old_current); |
|
|
1218 | |
|
|
1219 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1220 | |
|
|
1221 | save_perl (aTHX_ current); |
|
|
1222 | |
|
|
1223 | /* this will cause transfer_check to croak on block*/ |
|
|
1224 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1225 | |
|
|
1226 | load_perl (aTHX_ coro); |
|
|
1227 | |
|
|
1228 | coro_unwind_stacks (aTHX); |
|
|
1229 | |
|
|
1230 | /* restore swapped sv's */ |
|
|
1231 | SWAP_SVS (coro); |
|
|
1232 | |
|
|
1233 | coro_destruct_stacks (aTHX); |
|
|
1234 | |
|
|
1235 | /* now save some sv's to be free'd later */ |
|
|
1236 | svf [0] = GvSV (PL_defgv); |
|
|
1237 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1238 | svf [2] = GvSV (PL_errgv); |
|
|
1239 | svf [3] = (SV *)PL_defoutgv; |
|
|
1240 | svf [4] = PL_rs; |
|
|
1241 | svf [5] = GvSV (irsgv); |
|
|
1242 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1243 | svf [7] = PL_diehook; |
|
|
1244 | svf [8] = PL_warnhook; |
|
|
1245 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1246 | |
|
|
1247 | SvRV_set (coro_current, old_current); |
|
|
1248 | |
|
|
1249 | load_perl (aTHX_ current); |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | { |
|
|
1253 | unsigned int i; |
|
|
1254 | |
|
|
1255 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1256 | SvREFCNT_dec (svf [i]); |
|
|
1257 | |
|
|
1258 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1259 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1260 | SvREFCNT_dec (coro->invoke_cb); |
|
|
1261 | SvREFCNT_dec (coro->invoke_av); |
|
|
1262 | } |
|
|
1263 | } |
|
|
1264 | |
|
|
1265 | ecb_inline void |
616 | free_coro_mortal (pTHX) |
1266 | free_coro_mortal (pTHX) |
617 | { |
1267 | { |
618 | if (coro_mortal) |
1268 | if (ecb_expect_true (coro_mortal)) |
619 | { |
1269 | { |
620 | SvREFCNT_dec (coro_mortal); |
1270 | SvREFCNT_dec ((SV *)coro_mortal); |
621 | coro_mortal = 0; |
1271 | coro_mortal = 0; |
622 | } |
1272 | } |
623 | } |
1273 | } |
624 | |
1274 | |
625 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1275 | static int |
626 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1276 | runops_trace (pTHX) |
627 | /* during execution of a perl program */ |
|
|
628 | static void NOINLINE |
|
|
629 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
630 | { |
1277 | { |
631 | dSP; |
1278 | COP *oldcop = 0; |
632 | LOGOP myop; |
1279 | int oldcxix = -2; |
633 | |
1280 | |
634 | Zero (&myop, 1, LOGOP); |
1281 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
635 | myop.op_next = PL_op; |
1282 | { |
636 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1283 | PERL_ASYNC_CHECK (); |
637 | |
1284 | |
638 | PUSHMARK (SP); |
1285 | if (cctx_current->flags & CC_TRACE_ALL) |
639 | EXTEND (SP, 2); |
1286 | { |
640 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1287 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
641 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1288 | { |
642 | PUTBACK; |
1289 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
643 | PL_op = (OP *)&myop; |
1290 | SV **bot, **top; |
644 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1291 | AV *av = newAV (); /* return values */ |
645 | SPAGAIN; |
1292 | SV **cb; |
|
|
1293 | dSP; |
|
|
1294 | |
|
|
1295 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1296 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1297 | if (isGV (gv)) |
|
|
1298 | gv_efullname3 (fullname, gv, 0); |
|
|
1299 | |
|
|
1300 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
1301 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
1302 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
1303 | : bot; |
|
|
1304 | |
|
|
1305 | av_extend (av, top - bot); |
|
|
1306 | while (bot < top) |
|
|
1307 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
1308 | |
|
|
1309 | PL_runops = RUNOPS_DEFAULT; |
|
|
1310 | ENTER; |
|
|
1311 | SAVETMPS; |
|
|
1312 | EXTEND (SP, 3); |
|
|
1313 | PUSHMARK (SP); |
|
|
1314 | PUSHs (&PL_sv_no); |
|
|
1315 | PUSHs (fullname); |
|
|
1316 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
1317 | PUTBACK; |
|
|
1318 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1319 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1320 | SPAGAIN; |
|
|
1321 | FREETMPS; |
|
|
1322 | LEAVE; |
|
|
1323 | PL_runops = runops_trace; |
|
|
1324 | } |
|
|
1325 | |
|
|
1326 | if (oldcop != PL_curcop) |
|
|
1327 | { |
|
|
1328 | oldcop = PL_curcop; |
|
|
1329 | |
|
|
1330 | if (PL_curcop != &PL_compiling) |
|
|
1331 | { |
|
|
1332 | SV **cb; |
|
|
1333 | |
|
|
1334 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
|
|
1335 | { |
|
|
1336 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1337 | |
|
|
1338 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
1339 | { |
|
|
1340 | dSP; |
|
|
1341 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1342 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1343 | |
|
|
1344 | if (isGV (gv)) |
|
|
1345 | gv_efullname3 (fullname, gv, 0); |
|
|
1346 | |
|
|
1347 | PL_runops = RUNOPS_DEFAULT; |
|
|
1348 | ENTER; |
|
|
1349 | SAVETMPS; |
|
|
1350 | EXTEND (SP, 3); |
|
|
1351 | PUSHMARK (SP); |
|
|
1352 | PUSHs (&PL_sv_yes); |
|
|
1353 | PUSHs (fullname); |
|
|
1354 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1355 | PUTBACK; |
|
|
1356 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1357 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1358 | SPAGAIN; |
|
|
1359 | FREETMPS; |
|
|
1360 | LEAVE; |
|
|
1361 | PL_runops = runops_trace; |
|
|
1362 | } |
|
|
1363 | |
|
|
1364 | oldcxix = cxstack_ix; |
|
|
1365 | } |
|
|
1366 | |
|
|
1367 | if (cctx_current->flags & CC_TRACE_LINE) |
|
|
1368 | { |
|
|
1369 | dSP; |
|
|
1370 | |
|
|
1371 | PL_runops = RUNOPS_DEFAULT; |
|
|
1372 | ENTER; |
|
|
1373 | SAVETMPS; |
|
|
1374 | EXTEND (SP, 3); |
|
|
1375 | PL_runops = RUNOPS_DEFAULT; |
|
|
1376 | PUSHMARK (SP); |
|
|
1377 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1378 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1379 | PUTBACK; |
|
|
1380 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1381 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1382 | SPAGAIN; |
|
|
1383 | FREETMPS; |
|
|
1384 | LEAVE; |
|
|
1385 | PL_runops = runops_trace; |
|
|
1386 | } |
|
|
1387 | } |
|
|
1388 | } |
|
|
1389 | } |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | TAINT_NOT; |
|
|
1393 | return 0; |
|
|
1394 | } |
|
|
1395 | |
|
|
1396 | static struct CoroSLF cctx_ssl_frame; |
|
|
1397 | |
|
|
1398 | static void |
|
|
1399 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1400 | { |
|
|
1401 | ta->prev = 0; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | static int |
|
|
1405 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1406 | { |
|
|
1407 | *frame = cctx_ssl_frame; |
|
|
1408 | |
|
|
1409 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1413 | static void ecb_noinline |
|
|
1414 | cctx_prepare (pTHX) |
|
|
1415 | { |
|
|
1416 | PL_top_env = &PL_start_env; |
|
|
1417 | |
|
|
1418 | if (cctx_current->flags & CC_TRACE) |
|
|
1419 | PL_runops = runops_trace; |
|
|
1420 | |
|
|
1421 | /* we already must be executing an SLF op, there is no other valid way |
|
|
1422 | * that can lead to creation of a new cctx */ |
|
|
1423 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1424 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
|
|
1425 | |
|
|
1426 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
|
|
1427 | cctx_ssl_frame = slf_frame; |
|
|
1428 | |
|
|
1429 | slf_frame.prepare = slf_prepare_set_stacklevel; |
|
|
1430 | slf_frame.check = slf_check_set_stacklevel; |
|
|
1431 | } |
|
|
1432 | |
|
|
1433 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1434 | ecb_inline void |
|
|
1435 | transfer_tail (pTHX) |
|
|
1436 | { |
|
|
1437 | free_coro_mortal (aTHX); |
|
|
1438 | } |
|
|
1439 | |
|
|
1440 | /* try to exit the same way perl's main function would do */ |
|
|
1441 | /* we do not bother resetting the environment or other things *7 |
|
|
1442 | /* that are not, uhm, essential */ |
|
|
1443 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1444 | static void ecb_noinline ecb_cold |
|
|
1445 | perlish_exit (pTHX) |
|
|
1446 | { |
|
|
1447 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1448 | perl_free (PL_curinterp); |
|
|
1449 | exit (exitstatus); |
646 | } |
1450 | } |
647 | |
1451 | |
648 | /* |
1452 | /* |
649 | * this is a _very_ stripped down perl interpreter ;) |
1453 | * this is a _very_ stripped down perl interpreter ;) |
650 | */ |
1454 | */ |
651 | static void |
1455 | static void |
652 | coro_run (void *arg) |
1456 | cctx_run (void *arg) |
653 | { |
1457 | { |
|
|
1458 | #ifdef USE_ITHREADS |
|
|
1459 | # if CORO_PTHREAD |
|
|
1460 | PERL_SET_CONTEXT (coro_thx); |
|
|
1461 | # endif |
|
|
1462 | #endif |
|
|
1463 | { |
654 | dTHX; |
1464 | dTHX; |
655 | |
1465 | |
656 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1466 | /* normally we would need to skip the entersub here */ |
657 | UNLOCK; |
1467 | /* not doing so will re-execute it, which is exactly what we want */ |
|
|
1468 | /* PL_nop = PL_nop->op_next */ |
658 | |
1469 | |
659 | PL_top_env = &PL_start_env; |
|
|
660 | |
|
|
661 | /* inject a fake subroutine call to cctx_init */ |
1470 | /* inject a fake subroutine call to cctx_init */ |
662 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1471 | cctx_prepare (aTHX); |
663 | |
1472 | |
|
|
1473 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1474 | transfer_tail (aTHX); |
|
|
1475 | |
664 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1476 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
665 | PL_restartop = PL_op; |
1477 | PL_restartop = PL_op; |
666 | perl_run (PL_curinterp); |
1478 | perl_run (PL_curinterp); |
667 | |
|
|
668 | /* |
1479 | /* |
|
|
1480 | * Unfortunately, there is no way to get at the return values of the |
|
|
1481 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1482 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1483 | */ |
|
|
1484 | |
|
|
1485 | /* |
669 | * If perl-run returns we assume exit() was being called or the coro |
1486 | * If perl-run returns we assume exit() was being called or the coro |
670 | * fell off the end, which seems to be the only valid (non-bug) |
1487 | * fell off the end, which seems to be the only valid (non-bug) |
671 | * reason for perl_run to return. We try to exit by jumping to the |
1488 | * reason for perl_run to return. We try to mimic whatever perl is normally |
672 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1489 | * doing in that case. YMMV. |
673 | * coroutine as Coro has no such concept |
|
|
674 | */ |
1490 | */ |
675 | PL_top_env = main_top_env; |
1491 | perlish_exit (aTHX); |
676 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1492 | } |
677 | } |
1493 | } |
678 | |
1494 | |
679 | static coro_cctx * |
1495 | static coro_cctx * |
680 | cctx_new () |
1496 | cctx_new (void) |
681 | { |
1497 | { |
682 | coro_cctx *cctx; |
1498 | coro_cctx *cctx; |
683 | void *stack_start; |
|
|
684 | size_t stack_size; |
|
|
685 | |
1499 | |
686 | ++cctx_count; |
1500 | ++cctx_count; |
687 | |
|
|
688 | Newz (0, cctx, 1, coro_cctx); |
1501 | New (0, cctx, 1, coro_cctx); |
689 | |
1502 | |
690 | #if HAVE_MMAP |
1503 | cctx->gen = cctx_gen; |
|
|
1504 | cctx->flags = 0; |
|
|
1505 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
691 | |
1506 | |
692 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1507 | return cctx; |
693 | /* mmap supposedly does allocate-on-write for us */ |
1508 | } |
694 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
695 | |
1509 | |
696 | if (cctx->sptr != (void *)-1) |
1510 | /* create a new cctx only suitable as source */ |
697 | { |
1511 | static coro_cctx * |
698 | # if CORO_STACKGUARD |
1512 | cctx_new_empty (void) |
699 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1513 | { |
700 | # endif |
1514 | coro_cctx *cctx = cctx_new (); |
701 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1515 | |
702 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1516 | cctx->stack.sptr = 0; |
703 | cctx->mapped = 1; |
1517 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1518 | |
|
|
1519 | return cctx; |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1523 | static coro_cctx * |
|
|
1524 | cctx_new_run (void) |
|
|
1525 | { |
|
|
1526 | coro_cctx *cctx = cctx_new (); |
|
|
1527 | |
|
|
1528 | if (!coro_stack_alloc (&cctx->stack, cctx_stacksize)) |
704 | } |
1529 | { |
705 | else |
|
|
706 | #endif |
|
|
707 | { |
|
|
708 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
709 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
710 | |
|
|
711 | if (!cctx->sptr) |
|
|
712 | { |
|
|
713 | perror ("FATAL: unable to allocate stack for coroutine"); |
1530 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
714 | _exit (EXIT_FAILURE); |
1531 | _exit (EXIT_FAILURE); |
715 | } |
|
|
716 | |
|
|
717 | stack_start = cctx->sptr; |
|
|
718 | stack_size = cctx->ssize; |
|
|
719 | } |
1532 | } |
720 | |
1533 | |
721 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
722 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1534 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze); |
723 | |
1535 | |
724 | return cctx; |
1536 | return cctx; |
725 | } |
1537 | } |
726 | |
1538 | |
727 | static void |
1539 | static void |
728 | cctx_destroy (coro_cctx *cctx) |
1540 | cctx_destroy (coro_cctx *cctx) |
729 | { |
1541 | { |
730 | if (!cctx) |
1542 | if (!cctx) |
731 | return; |
1543 | return; |
732 | |
1544 | |
|
|
1545 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1546 | |
733 | --cctx_count; |
1547 | --cctx_count; |
|
|
1548 | coro_destroy (&cctx->cctx); |
734 | |
1549 | |
735 | #if CORO_USE_VALGRIND |
1550 | coro_stack_free (&cctx->stack); |
736 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if HAVE_MMAP |
|
|
740 | if (cctx->mapped) |
|
|
741 | munmap (cctx->sptr, cctx->ssize); |
|
|
742 | else |
|
|
743 | #endif |
|
|
744 | Safefree (cctx->sptr); |
|
|
745 | |
1551 | |
746 | Safefree (cctx); |
1552 | Safefree (cctx); |
747 | } |
1553 | } |
|
|
1554 | |
|
|
1555 | /* wether this cctx should be destructed */ |
|
|
1556 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
748 | |
1557 | |
749 | static coro_cctx * |
1558 | static coro_cctx * |
750 | cctx_get (pTHX) |
1559 | cctx_get (pTHX) |
751 | { |
1560 | { |
752 | while (cctx_first) |
1561 | while (ecb_expect_true (cctx_first)) |
753 | { |
1562 | { |
754 | coro_cctx *cctx = cctx_first; |
1563 | coro_cctx *cctx = cctx_first; |
755 | cctx_first = cctx->next; |
1564 | cctx_first = cctx->next; |
756 | --cctx_idle; |
1565 | --cctx_idle; |
757 | |
1566 | |
758 | if (cctx->ssize >= coro_stacksize) |
1567 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
759 | return cctx; |
1568 | return cctx; |
760 | |
1569 | |
761 | cctx_destroy (cctx); |
1570 | cctx_destroy (cctx); |
762 | } |
1571 | } |
763 | |
1572 | |
764 | PL_op = PL_op->op_next; |
|
|
765 | return cctx_new (); |
1573 | return cctx_new_run (); |
766 | } |
1574 | } |
767 | |
1575 | |
768 | static void |
1576 | static void |
769 | cctx_put (coro_cctx *cctx) |
1577 | cctx_put (coro_cctx *cctx) |
770 | { |
1578 | { |
|
|
1579 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr)); |
|
|
1580 | |
771 | /* free another cctx if overlimit */ |
1581 | /* free another cctx if overlimit */ |
772 | if (cctx_idle >= MAX_IDLE_CCTX) |
1582 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
773 | { |
1583 | { |
774 | coro_cctx *first = cctx_first; |
1584 | coro_cctx *first = cctx_first; |
775 | cctx_first = first->next; |
1585 | cctx_first = first->next; |
776 | --cctx_idle; |
1586 | --cctx_idle; |
777 | |
1587 | |
778 | assert (!first->inuse); |
|
|
779 | cctx_destroy (first); |
1588 | cctx_destroy (first); |
780 | } |
1589 | } |
781 | |
1590 | |
782 | ++cctx_idle; |
1591 | ++cctx_idle; |
783 | cctx->next = cctx_first; |
1592 | cctx->next = cctx_first; |
784 | cctx_first = cctx; |
1593 | cctx_first = cctx; |
785 | } |
1594 | } |
786 | |
1595 | |
787 | /** coroutine switching *****************************************************/ |
1596 | /** coroutine switching *****************************************************/ |
788 | |
1597 | |
789 | /* never call directly, always through the coro_state_transfer global variable */ |
1598 | static void |
790 | static void NOINLINE |
|
|
791 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1599 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1600 | { |
|
|
1601 | /* TODO: throwing up here is considered harmful */ |
|
|
1602 | |
|
|
1603 | if (ecb_expect_true (prev != next)) |
|
|
1604 | { |
|
|
1605 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1606 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
|
|
1607 | |
|
|
1608 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1609 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
|
|
1610 | |
|
|
1611 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1612 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1613 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1614 | #endif |
|
|
1615 | } |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | /* always use the TRANSFER macro */ |
|
|
1619 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
|
|
1620 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
792 | { |
1621 | { |
793 | dSTACKLEVEL; |
1622 | dSTACKLEVEL; |
794 | |
1623 | |
795 | /* sometimes transfer is only called to set idle_sp */ |
1624 | /* sometimes transfer is only called to set idle_sp */ |
796 | if (!next) |
1625 | if (ecb_expect_false (!prev)) |
797 | { |
1626 | { |
798 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1627 | cctx_current->idle_sp = STACKLEVEL; |
799 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1628 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
800 | } |
|
|
801 | else if (prev != next) |
|
|
802 | { |
1629 | } |
|
|
1630 | else if (ecb_expect_true (prev != next)) |
|
|
1631 | { |
803 | coro_cctx *prev__cctx; |
1632 | coro_cctx *cctx_prev; |
804 | |
1633 | |
805 | if (prev->flags & CF_NEW) |
1634 | if (ecb_expect_false (prev->flags & CF_NEW)) |
806 | { |
1635 | { |
807 | /* create a new empty context */ |
1636 | /* create a new empty/source context */ |
808 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
809 | prev->cctx->inuse = 1; |
|
|
810 | prev->flags &= ~CF_NEW; |
1637 | prev->flags &= ~CF_NEW; |
811 | prev->flags |= CF_RUNNING; |
1638 | prev->flags |= CF_RUNNING; |
812 | } |
1639 | } |
813 | |
1640 | |
814 | /*TODO: must not croak here */ |
|
|
815 | if (!prev->flags & CF_RUNNING) |
|
|
816 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
817 | |
|
|
818 | if (next->flags & CF_RUNNING) |
|
|
819 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
820 | |
|
|
821 | if (next->flags & CF_DESTROYED) |
|
|
822 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
823 | |
|
|
824 | prev->flags &= ~CF_RUNNING; |
1641 | prev->flags &= ~CF_RUNNING; |
825 | next->flags |= CF_RUNNING; |
1642 | next->flags |= CF_RUNNING; |
826 | |
1643 | |
827 | LOCK; |
1644 | /* first get rid of the old state */ |
|
|
1645 | save_perl (aTHX_ prev); |
828 | |
1646 | |
829 | if (next->flags & CF_NEW) |
1647 | if (ecb_expect_false (next->flags & CF_NEW)) |
830 | { |
1648 | { |
831 | /* need to start coroutine */ |
1649 | /* need to start coroutine */ |
832 | next->flags &= ~CF_NEW; |
1650 | next->flags &= ~CF_NEW; |
833 | /* first get rid of the old state */ |
|
|
834 | save_perl (aTHX_ prev); |
|
|
835 | /* setup coroutine call */ |
1651 | /* setup coroutine call */ |
836 | setup_coro (aTHX_ next); |
1652 | init_perl (aTHX_ next); |
837 | /* need a new stack */ |
|
|
838 | assert (!next->cctx); |
|
|
839 | } |
1653 | } |
840 | else |
1654 | else |
|
|
1655 | load_perl (aTHX_ next); |
|
|
1656 | |
|
|
1657 | /* possibly untie and reuse the cctx */ |
|
|
1658 | if (ecb_expect_true ( |
|
|
1659 | cctx_current->idle_sp == STACKLEVEL |
|
|
1660 | && !(cctx_current->flags & CC_TRACE) |
|
|
1661 | && !force_cctx |
|
|
1662 | )) |
841 | { |
1663 | { |
842 | /* coroutine already started */ |
1664 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
843 | save_perl (aTHX_ prev); |
1665 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
844 | load_perl (aTHX_ next); |
1666 | |
|
|
1667 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1668 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1669 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1670 | if (ecb_expect_true (!next->cctx)) |
|
|
1671 | next->cctx = cctx_get (aTHX); |
|
|
1672 | |
|
|
1673 | cctx_put (cctx_current); |
845 | } |
1674 | } |
|
|
1675 | else |
|
|
1676 | prev->cctx = cctx_current; |
846 | |
1677 | |
847 | prev__cctx = prev->cctx; |
1678 | ++next->usecount; |
848 | |
1679 | |
849 | /* possibly "free" the cctx */ |
1680 | cctx_prev = cctx_current; |
850 | if (prev__cctx->idle_sp == STACKLEVEL) |
1681 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1682 | |
|
|
1683 | next->cctx = 0; |
|
|
1684 | |
|
|
1685 | if (ecb_expect_false (cctx_prev != cctx_current)) |
851 | { |
1686 | { |
852 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1687 | cctx_prev->top_env = PL_top_env; |
853 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1688 | PL_top_env = cctx_current->top_env; |
854 | |
1689 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
855 | prev->cctx = 0; |
|
|
856 | |
|
|
857 | cctx_put (prev__cctx); |
|
|
858 | prev__cctx->inuse = 0; |
|
|
859 | } |
1690 | } |
860 | |
1691 | |
861 | if (!next->cctx) |
1692 | transfer_tail (aTHX); |
862 | { |
|
|
863 | next->cctx = cctx_get (aTHX); |
|
|
864 | assert (!next->cctx->inuse); |
|
|
865 | next->cctx->inuse = 1; |
|
|
866 | } |
|
|
867 | |
|
|
868 | if (prev__cctx != next->cctx) |
|
|
869 | { |
|
|
870 | prev__cctx->top_env = PL_top_env; |
|
|
871 | PL_top_env = next->cctx->top_env; |
|
|
872 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
873 | } |
|
|
874 | |
|
|
875 | free_coro_mortal (aTHX); |
|
|
876 | UNLOCK; |
|
|
877 | } |
1693 | } |
878 | } |
1694 | } |
879 | |
1695 | |
880 | struct transfer_args |
1696 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
881 | { |
|
|
882 | struct coro *prev, *next; |
|
|
883 | }; |
|
|
884 | |
|
|
885 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1697 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
886 | |
1698 | |
887 | /** high level stuff ********************************************************/ |
1699 | /** high level stuff ********************************************************/ |
888 | |
1700 | |
|
|
1701 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1702 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
889 | static int |
1703 | static void |
|
|
1704 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1705 | |
|
|
1706 | static void |
890 | coro_state_destroy (pTHX_ struct coro *coro) |
1707 | coro_state_destroy (pTHX_ struct coro *coro) |
891 | { |
1708 | { |
892 | if (coro->flags & CF_DESTROYED) |
1709 | if (coro->flags & CF_ZOMBIE) |
893 | return 0; |
1710 | return; |
894 | |
1711 | |
|
|
1712 | slf_destroy (aTHX_ coro); |
|
|
1713 | |
895 | coro->flags |= CF_DESTROYED; |
1714 | coro->flags |= CF_ZOMBIE; |
896 | |
1715 | |
897 | if (coro->flags & CF_READY) |
1716 | if (coro->flags & CF_READY) |
898 | { |
1717 | { |
899 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1718 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
900 | /* alternative: look through all ready queues and remove the coro */ |
1719 | /* alternative: look through all ready queues and remove the coro */ |
901 | LOCK; |
|
|
902 | --coro_nready; |
1720 | --coro_nready; |
903 | UNLOCK; |
|
|
904 | } |
1721 | } |
905 | else |
1722 | else |
906 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1723 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
907 | |
|
|
908 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
909 | { |
|
|
910 | struct coro temp; |
|
|
911 | |
|
|
912 | assert (!(coro->flags & CF_RUNNING)); |
|
|
913 | |
|
|
914 | Zero (&temp, 1, struct coro); |
|
|
915 | temp.save = CORO_SAVE_ALL; |
|
|
916 | |
|
|
917 | if (coro->flags & CF_RUNNING) |
|
|
918 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
919 | |
|
|
920 | save_perl (aTHX_ &temp); |
|
|
921 | load_perl (aTHX_ coro); |
|
|
922 | |
|
|
923 | coro_destroy_stacks (aTHX); |
|
|
924 | |
|
|
925 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
|
|
926 | |
|
|
927 | coro->mainstack = 0; |
|
|
928 | } |
|
|
929 | |
|
|
930 | cctx_destroy (coro->cctx); |
|
|
931 | SvREFCNT_dec (coro->args); |
|
|
932 | |
1724 | |
933 | if (coro->next) coro->next->prev = coro->prev; |
1725 | if (coro->next) coro->next->prev = coro->prev; |
934 | if (coro->prev) coro->prev->next = coro->next; |
1726 | if (coro->prev) coro->prev->next = coro->next; |
935 | if (coro == coro_first) coro_first = coro->next; |
1727 | if (coro == coro_first) coro_first = coro->next; |
936 | |
1728 | |
937 | return 1; |
1729 | if (coro->mainstack |
|
|
1730 | && coro->mainstack != main_mainstack |
|
|
1731 | && coro->slot |
|
|
1732 | && !PL_dirty) |
|
|
1733 | destroy_perl (aTHX_ coro); |
|
|
1734 | |
|
|
1735 | cctx_destroy (coro->cctx); |
|
|
1736 | SvREFCNT_dec (coro->startcv); |
|
|
1737 | SvREFCNT_dec (coro->args); |
|
|
1738 | SvREFCNT_dec (coro->swap_sv); |
|
|
1739 | SvREFCNT_dec (CORO_THROW); |
|
|
1740 | |
|
|
1741 | coro_call_on_destroy (aTHX_ coro); |
|
|
1742 | |
|
|
1743 | /* more destruction mayhem in coro_state_free */ |
938 | } |
1744 | } |
939 | |
1745 | |
940 | static int |
1746 | static int |
941 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1747 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
942 | { |
1748 | { |
943 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1749 | struct coro *coro = (struct coro *)mg->mg_ptr; |
944 | mg->mg_ptr = 0; |
1750 | mg->mg_ptr = 0; |
945 | |
1751 | |
946 | coro->hv = 0; |
|
|
947 | |
|
|
948 | if (--coro->refcnt < 0) |
|
|
949 | { |
|
|
950 | coro_state_destroy (aTHX_ coro); |
1752 | coro_state_destroy (aTHX_ coro); |
|
|
1753 | SvREFCNT_dec (coro->on_destroy); |
|
|
1754 | SvREFCNT_dec (coro->status); |
|
|
1755 | |
951 | Safefree (coro); |
1756 | Safefree (coro); |
952 | } |
|
|
953 | |
1757 | |
954 | return 0; |
1758 | return 0; |
955 | } |
1759 | } |
956 | |
1760 | |
957 | static int |
1761 | static int ecb_cold |
958 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1762 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
959 | { |
1763 | { |
960 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1764 | /* called when perl clones the current process the slow way (windows process emulation) */ |
961 | |
1765 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
962 | ++coro->refcnt; |
1766 | mg->mg_ptr = 0; |
|
|
1767 | mg->mg_virtual = 0; |
963 | |
1768 | |
964 | return 0; |
1769 | return 0; |
965 | } |
1770 | } |
966 | |
1771 | |
967 | static MGVTBL coro_state_vtbl = { |
1772 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
973 | #else |
1778 | #else |
974 | # define MGf_DUP 0 |
1779 | # define MGf_DUP 0 |
975 | #endif |
1780 | #endif |
976 | }; |
1781 | }; |
977 | |
1782 | |
978 | static struct coro * |
|
|
979 | SvSTATE_ (pTHX_ SV *coro) |
|
|
980 | { |
|
|
981 | HV *stash; |
|
|
982 | MAGIC *mg; |
|
|
983 | |
|
|
984 | if (SvROK (coro)) |
|
|
985 | coro = SvRV (coro); |
|
|
986 | |
|
|
987 | stash = SvSTASH (coro); |
|
|
988 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
989 | { |
|
|
990 | /* very slow, but rare, check */ |
|
|
991 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
992 | croak ("Coro::State object required"); |
|
|
993 | } |
|
|
994 | |
|
|
995 | mg = CORO_MAGIC (coro); |
|
|
996 | return (struct coro *)mg->mg_ptr; |
|
|
997 | } |
|
|
998 | |
|
|
999 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
1000 | |
|
|
1001 | static void |
1783 | static void |
1002 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1784 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1003 | { |
1785 | { |
1004 | ta->prev = SvSTATE (prev_sv); |
1786 | ta->prev = SvSTATE (prev_sv); |
1005 | ta->next = SvSTATE (next_sv); |
1787 | ta->next = SvSTATE (next_sv); |
|
|
1788 | TRANSFER_CHECK (*ta); |
1006 | } |
1789 | } |
1007 | |
1790 | |
1008 | static void |
1791 | static void |
1009 | api_transfer (SV *prev_sv, SV *next_sv) |
1792 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
|
|
1793 | { |
|
|
1794 | struct coro_transfer_args ta; |
|
|
1795 | |
|
|
1796 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1797 | TRANSFER (ta, 1); |
|
|
1798 | } |
|
|
1799 | |
|
|
1800 | /** Coro ********************************************************************/ |
|
|
1801 | |
|
|
1802 | ecb_inline void |
|
|
1803 | coro_enq (pTHX_ struct coro *coro) |
|
|
1804 | { |
|
|
1805 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1806 | |
|
|
1807 | SvREFCNT_inc_NN (coro->hv); |
|
|
1808 | |
|
|
1809 | coro->next_ready = 0; |
|
|
1810 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1811 | ready [1] = coro; |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | ecb_inline struct coro * |
|
|
1815 | coro_deq (pTHX) |
|
|
1816 | { |
|
|
1817 | int prio; |
|
|
1818 | |
|
|
1819 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1820 | { |
|
|
1821 | struct coro **ready = coro_ready [prio]; |
|
|
1822 | |
|
|
1823 | if (ready [0]) |
|
|
1824 | { |
|
|
1825 | struct coro *coro = ready [0]; |
|
|
1826 | ready [0] = coro->next_ready; |
|
|
1827 | return coro; |
|
|
1828 | } |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | return 0; |
|
|
1832 | } |
|
|
1833 | |
|
|
1834 | static void |
|
|
1835 | invoke_sv_ready_hook_helper (void) |
1010 | { |
1836 | { |
1011 | dTHX; |
1837 | dTHX; |
1012 | struct transfer_args ta; |
1838 | dSP; |
1013 | |
1839 | |
1014 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1840 | ENTER; |
1015 | TRANSFER (ta); |
1841 | SAVETMPS; |
|
|
1842 | |
|
|
1843 | PUSHMARK (SP); |
|
|
1844 | PUTBACK; |
|
|
1845 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1846 | |
|
|
1847 | FREETMPS; |
|
|
1848 | LEAVE; |
1016 | } |
1849 | } |
1017 | |
1850 | |
1018 | static int |
1851 | static int |
1019 | api_save (SV *coro_sv, int new_save) |
1852 | api_ready (pTHX_ SV *coro_sv) |
1020 | { |
1853 | { |
1021 | dTHX; |
|
|
1022 | struct coro *coro = SvSTATE (coro_sv); |
1854 | struct coro *coro = SvSTATE (coro_sv); |
1023 | int old_save = coro->save; |
|
|
1024 | |
|
|
1025 | if (new_save >= 0) |
|
|
1026 | coro->save = new_save; |
|
|
1027 | |
|
|
1028 | return old_save; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | /** Coro ********************************************************************/ |
|
|
1032 | |
|
|
1033 | static void |
|
|
1034 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1035 | { |
|
|
1036 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | static SV * |
|
|
1040 | coro_deq (pTHX_ int min_prio) |
|
|
1041 | { |
|
|
1042 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
1043 | |
|
|
1044 | min_prio -= PRIO_MIN; |
|
|
1045 | if (min_prio < 0) |
|
|
1046 | min_prio = 0; |
|
|
1047 | |
|
|
1048 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
1049 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1050 | return av_shift (coro_ready [prio]); |
|
|
1051 | |
|
|
1052 | return 0; |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | static int |
|
|
1056 | api_ready (SV *coro_sv) |
|
|
1057 | { |
|
|
1058 | dTHX; |
|
|
1059 | struct coro *coro; |
|
|
1060 | |
|
|
1061 | if (SvROK (coro_sv)) |
|
|
1062 | coro_sv = SvRV (coro_sv); |
|
|
1063 | |
|
|
1064 | coro = SvSTATE (coro_sv); |
|
|
1065 | |
1855 | |
1066 | if (coro->flags & CF_READY) |
1856 | if (coro->flags & CF_READY) |
1067 | return 0; |
1857 | return 0; |
1068 | |
1858 | |
1069 | coro->flags |= CF_READY; |
1859 | coro->flags |= CF_READY; |
1070 | |
1860 | |
1071 | LOCK; |
1861 | coro_enq (aTHX_ coro); |
1072 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1862 | |
1073 | ++coro_nready; |
1863 | if (!coro_nready++) |
1074 | UNLOCK; |
1864 | if (coroapi.readyhook) |
|
|
1865 | coroapi.readyhook (); |
1075 | |
1866 | |
1076 | return 1; |
1867 | return 1; |
1077 | } |
1868 | } |
1078 | |
1869 | |
1079 | static int |
1870 | static int |
1080 | api_is_ready (SV *coro_sv) |
1871 | api_is_ready (pTHX_ SV *coro_sv) |
1081 | { |
1872 | { |
1082 | dTHX; |
|
|
1083 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1873 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1084 | } |
1874 | } |
1085 | |
1875 | |
|
|
1876 | /* expects to own a reference to next->hv */ |
|
|
1877 | ecb_inline void |
|
|
1878 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1879 | { |
|
|
1880 | SV *prev_sv = SvRV (coro_current); |
|
|
1881 | |
|
|
1882 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1883 | ta->next = next; |
|
|
1884 | |
|
|
1885 | TRANSFER_CHECK (*ta); |
|
|
1886 | |
|
|
1887 | SvRV_set (coro_current, (SV *)next->hv); |
|
|
1888 | |
|
|
1889 | free_coro_mortal (aTHX); |
|
|
1890 | coro_mortal = prev_sv; |
|
|
1891 | } |
|
|
1892 | |
1086 | static void |
1893 | static void |
1087 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1894 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1088 | { |
1895 | { |
1089 | SV *prev_sv, *next_sv; |
|
|
1090 | |
|
|
1091 | for (;;) |
1896 | for (;;) |
1092 | { |
1897 | { |
1093 | LOCK; |
1898 | struct coro *next = coro_deq (aTHX); |
1094 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1095 | |
1899 | |
|
|
1900 | if (ecb_expect_true (next)) |
|
|
1901 | { |
|
|
1902 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1903 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1904 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1905 | else |
|
|
1906 | { |
|
|
1907 | next->flags &= ~CF_READY; |
|
|
1908 | --coro_nready; |
|
|
1909 | |
|
|
1910 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1911 | break; |
|
|
1912 | } |
|
|
1913 | } |
|
|
1914 | else |
|
|
1915 | { |
1096 | /* nothing to schedule: call the idle handler */ |
1916 | /* nothing to schedule: call the idle handler */ |
1097 | if (!next_sv) |
1917 | if (SvROK (sv_idle) |
|
|
1918 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1919 | { |
|
|
1920 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1921 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1922 | |
|
|
1923 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1924 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1925 | --coro_nready; |
|
|
1926 | } |
|
|
1927 | else |
|
|
1928 | { |
|
|
1929 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1930 | dSP; |
|
|
1931 | |
|
|
1932 | ENTER; |
|
|
1933 | SAVETMPS; |
|
|
1934 | |
|
|
1935 | PUSHMARK (SP); |
|
|
1936 | PUTBACK; |
|
|
1937 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1938 | |
|
|
1939 | FREETMPS; |
|
|
1940 | LEAVE; |
|
|
1941 | } |
|
|
1942 | } |
|
|
1943 | } |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | ecb_inline void |
|
|
1947 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
|
|
1948 | { |
|
|
1949 | api_ready (aTHX_ coro_current); |
|
|
1950 | prepare_schedule (aTHX_ ta); |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | ecb_inline void |
|
|
1954 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1955 | { |
|
|
1956 | SV *prev = SvRV (coro_current); |
|
|
1957 | |
|
|
1958 | if (coro_nready) |
|
|
1959 | { |
|
|
1960 | prepare_schedule (aTHX_ ta); |
|
|
1961 | api_ready (aTHX_ prev); |
|
|
1962 | } |
|
|
1963 | else |
|
|
1964 | prepare_nop (aTHX_ ta); |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | static void |
|
|
1968 | api_schedule (pTHX) |
|
|
1969 | { |
|
|
1970 | struct coro_transfer_args ta; |
|
|
1971 | |
|
|
1972 | prepare_schedule (aTHX_ &ta); |
|
|
1973 | TRANSFER (ta, 1); |
|
|
1974 | } |
|
|
1975 | |
|
|
1976 | static void |
|
|
1977 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1978 | { |
|
|
1979 | struct coro_transfer_args ta; |
|
|
1980 | struct coro *next = SvSTATE (coro_sv); |
|
|
1981 | |
|
|
1982 | SvREFCNT_inc_NN (coro_sv); |
|
|
1983 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1984 | } |
|
|
1985 | |
|
|
1986 | static int |
|
|
1987 | api_cede (pTHX) |
|
|
1988 | { |
|
|
1989 | struct coro_transfer_args ta; |
|
|
1990 | |
|
|
1991 | prepare_cede (aTHX_ &ta); |
|
|
1992 | |
|
|
1993 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
1994 | { |
|
|
1995 | TRANSFER (ta, 1); |
|
|
1996 | return 1; |
|
|
1997 | } |
|
|
1998 | else |
|
|
1999 | return 0; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | static int |
|
|
2003 | api_cede_notself (pTHX) |
|
|
2004 | { |
|
|
2005 | if (coro_nready) |
|
|
2006 | { |
|
|
2007 | struct coro_transfer_args ta; |
|
|
2008 | |
|
|
2009 | prepare_cede_notself (aTHX_ &ta); |
|
|
2010 | TRANSFER (ta, 1); |
|
|
2011 | return 1; |
|
|
2012 | } |
|
|
2013 | else |
|
|
2014 | return 0; |
|
|
2015 | } |
|
|
2016 | |
|
|
2017 | static void |
|
|
2018 | api_trace (pTHX_ SV *coro_sv, int flags) |
|
|
2019 | { |
|
|
2020 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2021 | |
|
|
2022 | if (coro->flags & CF_RUNNING) |
|
|
2023 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2024 | |
|
|
2025 | if (flags & CC_TRACE) |
|
|
2026 | { |
|
|
2027 | if (!coro->cctx) |
|
|
2028 | coro->cctx = cctx_new_run (); |
|
|
2029 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
2030 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
|
|
2031 | |
|
|
2032 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
2033 | } |
|
|
2034 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
2035 | { |
|
|
2036 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
2037 | |
|
|
2038 | if (coro->flags & CF_RUNNING) |
|
|
2039 | PL_runops = RUNOPS_DEFAULT; |
|
|
2040 | else |
|
|
2041 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
2042 | } |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | static void |
|
|
2046 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2047 | { |
|
|
2048 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2049 | { |
|
|
2050 | dSP; |
|
|
2051 | |
|
|
2052 | if (gimme_v == G_SCALAR) |
|
|
2053 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2054 | else |
|
|
2055 | { |
|
|
2056 | int i; |
|
|
2057 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2058 | |
|
|
2059 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2060 | PUSHs (AvARRAY (av)[i]); |
|
|
2061 | } |
|
|
2062 | |
|
|
2063 | PUTBACK; |
|
|
2064 | } |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | static void |
|
|
2068 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2069 | { |
|
|
2070 | if (!coro->on_destroy) |
|
|
2071 | coro->on_destroy = newAV (); |
|
|
2072 | |
|
|
2073 | av_push (coro->on_destroy, cb); |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | static void |
|
|
2077 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2078 | { |
|
|
2079 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2080 | } |
|
|
2081 | |
|
|
2082 | static int |
|
|
2083 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2084 | { |
|
|
2085 | struct coro *coro = (struct coro *)frame->data; |
|
|
2086 | |
|
|
2087 | if (!coro->status) |
|
|
2088 | return 1; |
|
|
2089 | |
|
|
2090 | frame->destroy = 0; |
|
|
2091 | |
|
|
2092 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2093 | |
|
|
2094 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2095 | |
|
|
2096 | return 0; |
|
|
2097 | } |
|
|
2098 | |
|
|
2099 | static void |
|
|
2100 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2101 | { |
|
|
2102 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2103 | |
|
|
2104 | if (items > 1) |
|
|
2105 | croak ("join called with too many arguments"); |
|
|
2106 | |
|
|
2107 | if (coro->status) |
|
|
2108 | frame->prepare = prepare_nop; |
|
|
2109 | else |
|
|
2110 | { |
|
|
2111 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2112 | frame->prepare = prepare_schedule; |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | frame->check = slf_check_join; |
|
|
2116 | frame->destroy = slf_destroy_join; |
|
|
2117 | frame->data = (void *)coro; |
|
|
2118 | SvREFCNT_inc (coro->hv); |
|
|
2119 | } |
|
|
2120 | |
|
|
2121 | static void |
|
|
2122 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2123 | { |
|
|
2124 | AV *od = coro->on_destroy; |
|
|
2125 | |
|
|
2126 | if (!od) |
|
|
2127 | return; |
|
|
2128 | |
|
|
2129 | coro->on_destroy = 0; |
|
|
2130 | sv_2mortal ((SV *)od); |
|
|
2131 | |
|
|
2132 | while (AvFILLp (od) >= 0) |
|
|
2133 | { |
|
|
2134 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2135 | |
|
|
2136 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2137 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2138 | api_ready (aTHX_ cb); |
|
|
2139 | else |
|
|
2140 | { |
|
|
2141 | dSP; /* don't disturb outer sp */ |
|
|
2142 | PUSHMARK (SP); |
|
|
2143 | |
|
|
2144 | if (coro->status) |
|
|
2145 | { |
|
|
2146 | PUTBACK; |
|
|
2147 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2148 | SPAGAIN; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | PUTBACK; |
|
|
2152 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2153 | } |
|
|
2154 | } |
|
|
2155 | } |
|
|
2156 | |
|
|
2157 | static void |
|
|
2158 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2159 | { |
|
|
2160 | AV *av; |
|
|
2161 | |
|
|
2162 | if (coro->status) |
|
|
2163 | { |
|
|
2164 | av = coro->status; |
|
|
2165 | av_clear (av); |
|
|
2166 | } |
|
|
2167 | else |
|
|
2168 | av = coro->status = newAV (); |
|
|
2169 | |
|
|
2170 | /* items are actually not so common, so optimise for this case */ |
|
|
2171 | if (items) |
|
|
2172 | { |
|
|
2173 | int i; |
|
|
2174 | |
|
|
2175 | av_extend (av, items - 1); |
|
|
2176 | |
|
|
2177 | for (i = 0; i < items; ++i) |
|
|
2178 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2179 | } |
|
|
2180 | } |
|
|
2181 | |
|
|
2182 | static void |
|
|
2183 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2184 | { |
|
|
2185 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2186 | api_ready (aTHX_ sv_manager); |
|
|
2187 | |
|
|
2188 | frame->prepare = prepare_schedule; |
|
|
2189 | frame->check = slf_check_repeat; |
|
|
2190 | |
|
|
2191 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2192 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2193 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2194 | } |
|
|
2195 | |
|
|
2196 | static void |
|
|
2197 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2198 | { |
|
|
2199 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2200 | |
|
|
2201 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2202 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | static void |
|
|
2206 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2207 | { |
|
|
2208 | HV *coro_hv; |
|
|
2209 | struct coro *coro; |
|
|
2210 | |
|
|
2211 | if (items <= 0) |
|
|
2212 | croak ("Coro::cancel called without coro object,"); |
|
|
2213 | |
|
|
2214 | coro = SvSTATE (arg [0]); |
|
|
2215 | coro_hv = coro->hv; |
|
|
2216 | |
|
|
2217 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2218 | |
|
|
2219 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2220 | { |
|
|
2221 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2222 | coro->slf_frame.data = (void *)coro; |
|
|
2223 | |
|
|
2224 | frame->prepare = prepare_nop; |
|
|
2225 | frame->check = slf_check_nop; |
|
|
2226 | } |
|
|
2227 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2228 | { |
|
|
2229 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2230 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2231 | } |
|
|
2232 | else |
|
|
2233 | { |
|
|
2234 | struct coro *self = SvSTATE_current; |
|
|
2235 | |
|
|
2236 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2237 | * unfortunately, this requires some magic trickery, as |
|
|
2238 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2239 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2240 | * besides, I can't get the slow-but-safe version working... |
|
|
2241 | */ |
|
|
2242 | slf_frame.data = 0; |
|
|
2243 | self->flags |= CF_NOCANCEL; |
|
|
2244 | coro_state_destroy (aTHX_ coro); |
|
|
2245 | self->flags &= ~CF_NOCANCEL; |
|
|
2246 | |
|
|
2247 | if (slf_frame.data) |
|
|
2248 | { |
|
|
2249 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2250 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2251 | } |
|
|
2252 | else |
|
|
2253 | { |
|
|
2254 | frame->prepare = prepare_nop; |
|
|
2255 | frame->check = slf_check_nop; |
|
|
2256 | } |
|
|
2257 | } |
|
|
2258 | } |
|
|
2259 | |
|
|
2260 | static int |
|
|
2261 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2262 | { |
|
|
2263 | frame->prepare = 0; |
|
|
2264 | coro_unwind_stacks (aTHX); |
|
|
2265 | |
|
|
2266 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2267 | |
|
|
2268 | return 1; |
|
|
2269 | } |
|
|
2270 | |
|
|
2271 | static int |
|
|
2272 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2273 | { |
|
|
2274 | if (coro->cctx) |
|
|
2275 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2276 | |
|
|
2277 | if (coro->flags & CF_NEW) |
|
|
2278 | { |
|
|
2279 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2280 | coro_state_destroy (aTHX_ coro); |
|
|
2281 | } |
|
|
2282 | else |
|
|
2283 | { |
|
|
2284 | if (!coro->slf_frame.prepare) |
|
|
2285 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2286 | |
|
|
2287 | slf_destroy (aTHX_ coro); |
|
|
2288 | |
|
|
2289 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2290 | coro->slf_frame.prepare = prepare_nop; |
|
|
2291 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2292 | |
|
|
2293 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | return 1; |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | /*****************************************************************************/ |
|
|
2300 | /* async pool handler */ |
|
|
2301 | |
|
|
2302 | static int |
|
|
2303 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2304 | { |
|
|
2305 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2306 | struct coro *coro = (struct coro *)frame->data; |
|
|
2307 | |
|
|
2308 | if (!coro->invoke_cb) |
|
|
2309 | return 1; /* loop till we have invoke */ |
|
|
2310 | else |
|
|
2311 | { |
|
|
2312 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2313 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2314 | |
|
|
2315 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2316 | |
|
|
2317 | { |
|
|
2318 | dSP; |
|
|
2319 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2320 | PUTBACK; |
|
|
2321 | } |
|
|
2322 | |
|
|
2323 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2324 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2325 | coro->invoke_av = 0; |
|
|
2326 | |
|
|
2327 | return 0; |
|
|
2328 | } |
|
|
2329 | } |
|
|
2330 | |
|
|
2331 | static void |
|
|
2332 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2333 | { |
|
|
2334 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2335 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2336 | |
|
|
2337 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2338 | { |
|
|
2339 | /* subsequent iteration */ |
|
|
2340 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2341 | coro->saved_deffh = 0; |
|
|
2342 | |
|
|
2343 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2344 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2345 | { |
|
|
2346 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2347 | return; |
|
|
2348 | } |
|
|
2349 | else |
|
|
2350 | { |
|
|
2351 | av_clear (GvAV (PL_defgv)); |
|
|
2352 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2353 | |
|
|
2354 | coro->prio = 0; |
|
|
2355 | |
|
|
2356 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2357 | api_trace (aTHX_ coro_current, 0); |
|
|
2358 | |
|
|
2359 | frame->prepare = prepare_schedule; |
|
|
2360 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2361 | } |
|
|
2362 | } |
|
|
2363 | else |
|
|
2364 | { |
|
|
2365 | /* first iteration, simply fall through */ |
|
|
2366 | frame->prepare = prepare_nop; |
|
|
2367 | } |
|
|
2368 | |
|
|
2369 | frame->check = slf_check_pool_handler; |
|
|
2370 | frame->data = (void *)coro; |
|
|
2371 | } |
|
|
2372 | |
|
|
2373 | /*****************************************************************************/ |
|
|
2374 | /* rouse callback */ |
|
|
2375 | |
|
|
2376 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2377 | |
|
|
2378 | static void |
|
|
2379 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2380 | { |
|
|
2381 | dXSARGS; |
|
|
2382 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2383 | |
|
|
2384 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2385 | { |
|
|
2386 | /* first call, set args */ |
|
|
2387 | SV *coro = SvRV (data); |
|
|
2388 | AV *av = newAV (); |
|
|
2389 | |
|
|
2390 | SvRV_set (data, (SV *)av); |
|
|
2391 | |
|
|
2392 | /* better take a full copy of the arguments */ |
|
|
2393 | while (items--) |
|
|
2394 | av_store (av, items, newSVsv (ST (items))); |
|
|
2395 | |
|
|
2396 | api_ready (aTHX_ coro); |
|
|
2397 | SvREFCNT_dec (coro); |
|
|
2398 | } |
|
|
2399 | |
|
|
2400 | XSRETURN_EMPTY; |
|
|
2401 | } |
|
|
2402 | |
|
|
2403 | static int |
|
|
2404 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2405 | { |
|
|
2406 | SV *data = (SV *)frame->data; |
|
|
2407 | |
|
|
2408 | if (CORO_THROW) |
|
|
2409 | return 0; |
|
|
2410 | |
|
|
2411 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2412 | return 1; |
|
|
2413 | |
|
|
2414 | /* now push all results on the stack */ |
|
|
2415 | { |
|
|
2416 | dSP; |
|
|
2417 | AV *av = (AV *)SvRV (data); |
|
|
2418 | int i; |
|
|
2419 | |
|
|
2420 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2421 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2422 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2423 | |
|
|
2424 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2425 | AvFILLp (av) = -1; |
|
|
2426 | av_undef (av); |
|
|
2427 | |
|
|
2428 | PUTBACK; |
|
|
2429 | } |
|
|
2430 | |
|
|
2431 | return 0; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | static void |
|
|
2435 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2436 | { |
|
|
2437 | SV *cb; |
|
|
2438 | |
|
|
2439 | if (items) |
|
|
2440 | cb = arg [0]; |
|
|
2441 | else |
|
|
2442 | { |
|
|
2443 | struct coro *coro = SvSTATE_current; |
|
|
2444 | |
|
|
2445 | if (!coro->rouse_cb) |
|
|
2446 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2447 | |
|
|
2448 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2449 | coro->rouse_cb = 0; |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | if (!SvROK (cb) |
|
|
2453 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2454 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2455 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2456 | |
|
|
2457 | { |
|
|
2458 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2459 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2460 | |
|
|
2461 | frame->data = (void *)data; |
|
|
2462 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2463 | frame->check = slf_check_rouse_wait; |
|
|
2464 | } |
|
|
2465 | } |
|
|
2466 | |
|
|
2467 | static SV * |
|
|
2468 | coro_new_rouse_cb (pTHX) |
|
|
2469 | { |
|
|
2470 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2471 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2472 | SV *data = newRV_inc ((SV *)hv); |
|
|
2473 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2474 | |
|
|
2475 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2476 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2477 | |
|
|
2478 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2479 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2480 | |
|
|
2481 | return cb; |
|
|
2482 | } |
|
|
2483 | |
|
|
2484 | /*****************************************************************************/ |
|
|
2485 | /* schedule-like-function opcode (SLF) */ |
|
|
2486 | |
|
|
2487 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2488 | static const CV *slf_cv; |
|
|
2489 | static SV **slf_argv; |
|
|
2490 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2491 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2492 | |
|
|
2493 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2494 | /* recreate the stack frame as perl will on following calls */ |
|
|
2495 | /* since entersub cleared the stack */ |
|
|
2496 | static OP * |
|
|
2497 | pp_restore (pTHX) |
|
|
2498 | { |
|
|
2499 | int i; |
|
|
2500 | SV **SP = PL_stack_base + slf_ax; |
|
|
2501 | |
|
|
2502 | PUSHMARK (SP); |
|
|
2503 | |
|
|
2504 | EXTEND (SP, slf_argc + 1); |
|
|
2505 | |
|
|
2506 | for (i = 0; i < slf_argc; ++i) |
|
|
2507 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2508 | |
|
|
2509 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2510 | |
|
|
2511 | RETURNOP (slf_restore.op_first); |
|
|
2512 | } |
|
|
2513 | |
|
|
2514 | static void |
|
|
2515 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2516 | { |
|
|
2517 | SV **arg = (SV **)slf_frame.data; |
|
|
2518 | |
|
|
2519 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | static void |
|
|
2523 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2524 | { |
|
|
2525 | if (items != 2) |
|
|
2526 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2527 | |
|
|
2528 | frame->prepare = slf_prepare_transfer; |
|
|
2529 | frame->check = slf_check_nop; |
|
|
2530 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | static void |
|
|
2534 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2535 | { |
|
|
2536 | frame->prepare = prepare_schedule; |
|
|
2537 | frame->check = slf_check_nop; |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | static void |
|
|
2541 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2542 | { |
|
|
2543 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2544 | |
|
|
2545 | SvREFCNT_inc_NN (next->hv); |
|
|
2546 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | static void |
|
|
2550 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2551 | { |
|
|
2552 | if (!items) |
|
|
2553 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2554 | |
|
|
2555 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2556 | frame->prepare = slf_prepare_schedule_to; |
|
|
2557 | frame->check = slf_check_nop; |
|
|
2558 | } |
|
|
2559 | |
|
|
2560 | static void |
|
|
2561 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2562 | { |
|
|
2563 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2564 | |
|
|
2565 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2566 | } |
|
|
2567 | |
|
|
2568 | static void |
|
|
2569 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2570 | { |
|
|
2571 | frame->prepare = prepare_cede; |
|
|
2572 | frame->check = slf_check_nop; |
|
|
2573 | } |
|
|
2574 | |
|
|
2575 | static void |
|
|
2576 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2577 | { |
|
|
2578 | frame->prepare = prepare_cede_notself; |
|
|
2579 | frame->check = slf_check_nop; |
|
|
2580 | } |
|
|
2581 | |
|
|
2582 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2583 | static void |
|
|
2584 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2585 | { |
|
|
2586 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2587 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2588 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2589 | |
|
|
2590 | /* |
|
|
2591 | * The on_destroy above most likely is from an SLF call. |
|
|
2592 | * Since by definition the SLF call will not finish when we destroy |
|
|
2593 | * the coro, we will have to force-finish it here, otherwise |
|
|
2594 | * cleanup functions cannot call SLF functions. |
|
|
2595 | */ |
|
|
2596 | coro->slf_frame.prepare = 0; |
|
|
2597 | } |
|
|
2598 | |
|
|
2599 | /* |
|
|
2600 | * these not obviously related functions are all rolled into one |
|
|
2601 | * function to increase chances that they all will call transfer with the same |
|
|
2602 | * stack offset |
|
|
2603 | * SLF stands for "schedule-like-function". |
|
|
2604 | */ |
|
|
2605 | static OP * |
|
|
2606 | pp_slf (pTHX) |
|
|
2607 | { |
|
|
2608 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2609 | |
|
|
2610 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2611 | /* the latter happens when a new coro has been started */ |
|
|
2612 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2613 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2614 | { |
|
|
2615 | /* first iteration */ |
|
|
2616 | dSP; |
|
|
2617 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2618 | int items = SP - arg; /* args without function object */ |
|
|
2619 | SV *gv = *sp; |
|
|
2620 | |
|
|
2621 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2622 | /* for us, divert to the real entersub */ |
|
|
2623 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2624 | || !GvCV (gv) |
|
|
2625 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2626 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2627 | |
|
|
2628 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2629 | { |
|
|
2630 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2631 | AV *av = GvAV (PL_defgv); |
|
|
2632 | arg = AvARRAY (av); |
|
|
2633 | items = AvFILLp (av) + 1; |
|
|
2634 | } |
|
|
2635 | |
|
|
2636 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2637 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2638 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2639 | |
|
|
2640 | /* pop args */ |
|
|
2641 | SP = PL_stack_base + POPMARK; |
|
|
2642 | |
|
|
2643 | PUTBACK; |
|
|
2644 | } |
|
|
2645 | |
|
|
2646 | /* now that we have a slf_frame, interpret it! */ |
|
|
2647 | /* we use a callback system not to make the code needlessly */ |
|
|
2648 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2649 | |
|
|
2650 | do |
|
|
2651 | { |
|
|
2652 | struct coro_transfer_args ta; |
|
|
2653 | |
|
|
2654 | slf_frame.prepare (aTHX_ &ta); |
|
|
2655 | TRANSFER (ta, 0); |
|
|
2656 | |
|
|
2657 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2658 | } |
|
|
2659 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2660 | |
|
|
2661 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2662 | |
|
|
2663 | /* exception handling */ |
|
|
2664 | if (ecb_expect_false (CORO_THROW)) |
|
|
2665 | { |
|
|
2666 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2667 | |
|
|
2668 | CORO_THROW = 0; |
|
|
2669 | sv_setsv (ERRSV, exception); |
|
|
2670 | croak (0); |
|
|
2671 | } |
|
|
2672 | |
|
|
2673 | /* return value handling - mostly like entersub */ |
|
|
2674 | /* make sure we put something on the stack in scalar context */ |
|
|
2675 | if (GIMME_V == G_SCALAR |
|
|
2676 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2677 | { |
|
|
2678 | dSP; |
|
|
2679 | SV **bot = PL_stack_base + checkmark; |
|
|
2680 | |
|
|
2681 | if (sp == bot) /* too few, push undef */ |
|
|
2682 | bot [1] = &PL_sv_undef; |
|
|
2683 | else /* too many, take last one */ |
|
|
2684 | bot [1] = *sp; |
|
|
2685 | |
|
|
2686 | SP = bot + 1; |
|
|
2687 | |
|
|
2688 | PUTBACK; |
|
|
2689 | } |
|
|
2690 | |
|
|
2691 | return NORMAL; |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | static void |
|
|
2695 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2696 | { |
|
|
2697 | int i; |
|
|
2698 | SV **arg = PL_stack_base + ax; |
|
|
2699 | int items = PL_stack_sp - arg + 1; |
|
|
2700 | |
|
|
2701 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2702 | |
|
|
2703 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2704 | && PL_op->op_ppaddr != pp_slf) |
|
|
2705 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2706 | |
|
|
2707 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2708 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2709 | slf_cv = cv; |
|
|
2710 | |
|
|
2711 | /* we patch the op, and then re-run the whole call */ |
|
|
2712 | /* we have to put the same argument on the stack for this to work */ |
|
|
2713 | /* and this will be done by pp_restore */ |
|
|
2714 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2715 | slf_restore.op_type = OP_CUSTOM; |
|
|
2716 | slf_restore.op_ppaddr = pp_restore; |
|
|
2717 | slf_restore.op_first = PL_op; |
|
|
2718 | |
|
|
2719 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2720 | |
|
|
2721 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2722 | { |
|
|
2723 | if (items > slf_arga) |
|
|
2724 | { |
|
|
2725 | slf_arga = items; |
|
|
2726 | Safefree (slf_argv); |
|
|
2727 | New (0, slf_argv, slf_arga, SV *); |
|
|
2728 | } |
|
|
2729 | |
|
|
2730 | slf_argc = items; |
|
|
2731 | |
|
|
2732 | for (i = 0; i < items; ++i) |
|
|
2733 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2734 | } |
|
|
2735 | else |
|
|
2736 | slf_argc = 0; |
|
|
2737 | |
|
|
2738 | PL_op->op_ppaddr = pp_slf; |
|
|
2739 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2740 | |
|
|
2741 | PL_op = (OP *)&slf_restore; |
|
|
2742 | } |
|
|
2743 | |
|
|
2744 | /*****************************************************************************/ |
|
|
2745 | /* dynamic wind */ |
|
|
2746 | |
|
|
2747 | static void |
|
|
2748 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2749 | { |
|
|
2750 | dSP; |
|
|
2751 | |
|
|
2752 | PUSHSTACK; |
|
|
2753 | |
|
|
2754 | PUSHMARK (SP); |
|
|
2755 | PUTBACK; |
|
|
2756 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2757 | SPAGAIN; |
|
|
2758 | |
|
|
2759 | POPSTACK; |
|
|
2760 | } |
|
|
2761 | |
|
|
2762 | static SV * |
|
|
2763 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2764 | { |
|
|
2765 | AV *av = *avp; |
|
|
2766 | SV *res = av_pop (av); |
|
|
2767 | |
|
|
2768 | if (AvFILLp (av) < 0) |
|
|
2769 | { |
|
|
2770 | *avp = 0; |
|
|
2771 | SvREFCNT_dec (av); |
|
|
2772 | } |
|
|
2773 | |
|
|
2774 | return res; |
|
|
2775 | } |
|
|
2776 | |
|
|
2777 | static void |
|
|
2778 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2779 | { |
|
|
2780 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2781 | SvREFCNT_dec (cb); |
|
|
2782 | } |
|
|
2783 | |
|
|
2784 | static void |
|
|
2785 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2786 | { |
|
|
2787 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2788 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2789 | } |
|
|
2790 | |
|
|
2791 | /*****************************************************************************/ |
|
|
2792 | /* PerlIO::cede */ |
|
|
2793 | |
|
|
2794 | typedef struct |
|
|
2795 | { |
|
|
2796 | PerlIOBuf base; |
|
|
2797 | NV next, every; |
|
|
2798 | } PerlIOCede; |
|
|
2799 | |
|
|
2800 | static IV ecb_cold |
|
|
2801 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2802 | { |
|
|
2803 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2804 | |
|
|
2805 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2806 | self->next = nvtime () + self->every; |
|
|
2807 | |
|
|
2808 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2809 | } |
|
|
2810 | |
|
|
2811 | static SV * ecb_cold |
|
|
2812 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2813 | { |
|
|
2814 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2815 | |
|
|
2816 | return newSVnv (self->every); |
|
|
2817 | } |
|
|
2818 | |
|
|
2819 | static IV |
|
|
2820 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2821 | { |
|
|
2822 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2823 | double now = nvtime (); |
|
|
2824 | |
|
|
2825 | if (now >= self->next) |
|
|
2826 | { |
|
|
2827 | api_cede (aTHX); |
|
|
2828 | self->next = now + self->every; |
|
|
2829 | } |
|
|
2830 | |
|
|
2831 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2832 | } |
|
|
2833 | |
|
|
2834 | static PerlIO_funcs PerlIO_cede = |
|
|
2835 | { |
|
|
2836 | sizeof(PerlIO_funcs), |
|
|
2837 | "cede", |
|
|
2838 | sizeof(PerlIOCede), |
|
|
2839 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2840 | PerlIOCede_pushed, |
|
|
2841 | PerlIOBuf_popped, |
|
|
2842 | PerlIOBuf_open, |
|
|
2843 | PerlIOBase_binmode, |
|
|
2844 | PerlIOCede_getarg, |
|
|
2845 | PerlIOBase_fileno, |
|
|
2846 | PerlIOBuf_dup, |
|
|
2847 | PerlIOBuf_read, |
|
|
2848 | PerlIOBuf_unread, |
|
|
2849 | PerlIOBuf_write, |
|
|
2850 | PerlIOBuf_seek, |
|
|
2851 | PerlIOBuf_tell, |
|
|
2852 | PerlIOBuf_close, |
|
|
2853 | PerlIOCede_flush, |
|
|
2854 | PerlIOBuf_fill, |
|
|
2855 | PerlIOBase_eof, |
|
|
2856 | PerlIOBase_error, |
|
|
2857 | PerlIOBase_clearerr, |
|
|
2858 | PerlIOBase_setlinebuf, |
|
|
2859 | PerlIOBuf_get_base, |
|
|
2860 | PerlIOBuf_bufsiz, |
|
|
2861 | PerlIOBuf_get_ptr, |
|
|
2862 | PerlIOBuf_get_cnt, |
|
|
2863 | PerlIOBuf_set_ptrcnt, |
|
|
2864 | }; |
|
|
2865 | |
|
|
2866 | /*****************************************************************************/ |
|
|
2867 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2868 | |
|
|
2869 | static SV * |
|
|
2870 | coro_waitarray_new (pTHX_ int count) |
|
|
2871 | { |
|
|
2872 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2873 | AV *av = newAV (); |
|
|
2874 | SV **ary; |
|
|
2875 | |
|
|
2876 | /* unfortunately, building manually saves memory */ |
|
|
2877 | Newx (ary, 2, SV *); |
|
|
2878 | AvALLOC (av) = ary; |
|
|
2879 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2880 | AvARRAY (av) = ary; |
|
|
2881 | #else |
|
|
2882 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2883 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2884 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2885 | #endif |
|
|
2886 | AvMAX (av) = 1; |
|
|
2887 | AvFILLp (av) = 0; |
|
|
2888 | ary [0] = newSViv (count); |
|
|
2889 | |
|
|
2890 | return newRV_noinc ((SV *)av); |
|
|
2891 | } |
|
|
2892 | |
|
|
2893 | /* semaphore */ |
|
|
2894 | |
|
|
2895 | static void |
|
|
2896 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2897 | { |
|
|
2898 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2899 | IV count = SvIVX (count_sv); |
|
|
2900 | |
|
|
2901 | count += adjust; |
|
|
2902 | SvIVX (count_sv) = count; |
|
|
2903 | |
|
|
2904 | /* now wake up as many waiters as are expected to lock */ |
|
|
2905 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2906 | { |
|
|
2907 | SV *cb; |
|
|
2908 | |
|
|
2909 | /* swap first two elements so we can shift a waiter */ |
|
|
2910 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2911 | AvARRAY (av)[1] = count_sv; |
|
|
2912 | cb = av_shift (av); |
|
|
2913 | |
|
|
2914 | if (SvOBJECT (cb)) |
|
|
2915 | { |
|
|
2916 | api_ready (aTHX_ cb); |
|
|
2917 | --count; |
|
|
2918 | } |
|
|
2919 | else if (SvTYPE (cb) == SVt_PVCV) |
1098 | { |
2920 | { |
1099 | dSP; |
2921 | dSP; |
1100 | UNLOCK; |
|
|
1101 | |
|
|
1102 | ENTER; |
|
|
1103 | SAVETMPS; |
|
|
1104 | |
|
|
1105 | PUSHMARK (SP); |
2922 | PUSHMARK (SP); |
|
|
2923 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1106 | PUTBACK; |
2924 | PUTBACK; |
1107 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
2925 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1108 | |
|
|
1109 | FREETMPS; |
|
|
1110 | LEAVE; |
|
|
1111 | continue; |
|
|
1112 | } |
2926 | } |
1113 | |
2927 | |
1114 | ta->next = SvSTATE (next_sv); |
2928 | SvREFCNT_dec (cb); |
|
|
2929 | } |
|
|
2930 | } |
1115 | |
2931 | |
1116 | /* cannot transfer to destroyed coros, skip and look for next */ |
2932 | static void |
1117 | if (ta->next->flags & CF_DESTROYED) |
2933 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
2934 | { |
|
|
2935 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2936 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
2937 | } |
|
|
2938 | |
|
|
2939 | static int |
|
|
2940 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2941 | { |
|
|
2942 | AV *av = (AV *)frame->data; |
|
|
2943 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2944 | SV *coro_hv = SvRV (coro_current); |
|
|
2945 | |
|
|
2946 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2947 | if (CORO_THROW) |
|
|
2948 | return 0; |
|
|
2949 | else if (SvIVX (count_sv) > 0) |
|
|
2950 | { |
|
|
2951 | frame->destroy = 0; |
|
|
2952 | |
|
|
2953 | if (acquire) |
|
|
2954 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2955 | else |
|
|
2956 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2957 | |
|
|
2958 | return 0; |
|
|
2959 | } |
|
|
2960 | else |
|
|
2961 | { |
|
|
2962 | int i; |
|
|
2963 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2964 | /* waiters list and only add us if we aren't in there already */ |
|
|
2965 | /* this avoids some degenerate memory usage cases */ |
|
|
2966 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
2967 | if (AvARRAY (av)[i] == coro_hv) |
|
|
2968 | return 1; |
|
|
2969 | |
|
|
2970 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
2971 | return 1; |
|
|
2972 | } |
|
|
2973 | } |
|
|
2974 | |
|
|
2975 | static int |
|
|
2976 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2977 | { |
|
|
2978 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2979 | } |
|
|
2980 | |
|
|
2981 | static int |
|
|
2982 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2983 | { |
|
|
2984 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2985 | } |
|
|
2986 | |
|
|
2987 | static void |
|
|
2988 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2989 | { |
|
|
2990 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2991 | |
|
|
2992 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2993 | { |
|
|
2994 | frame->data = (void *)av; |
|
|
2995 | frame->prepare = prepare_nop; |
|
|
2996 | } |
|
|
2997 | else |
|
|
2998 | { |
|
|
2999 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3000 | |
|
|
3001 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3002 | frame->prepare = prepare_schedule; |
|
|
3003 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3004 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3005 | frame->destroy = coro_semaphore_destroy; |
|
|
3006 | } |
|
|
3007 | } |
|
|
3008 | |
|
|
3009 | static void |
|
|
3010 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3011 | { |
|
|
3012 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3013 | frame->check = slf_check_semaphore_down; |
|
|
3014 | } |
|
|
3015 | |
|
|
3016 | static void |
|
|
3017 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3018 | { |
|
|
3019 | if (items >= 2) |
|
|
3020 | { |
|
|
3021 | /* callback form */ |
|
|
3022 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3023 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3024 | |
|
|
3025 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3026 | |
|
|
3027 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3028 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3029 | |
|
|
3030 | frame->prepare = prepare_nop; |
|
|
3031 | frame->check = slf_check_nop; |
|
|
3032 | } |
|
|
3033 | else |
|
|
3034 | { |
|
|
3035 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3036 | frame->check = slf_check_semaphore_wait; |
|
|
3037 | } |
|
|
3038 | } |
|
|
3039 | |
|
|
3040 | /* signal */ |
|
|
3041 | |
|
|
3042 | static void |
|
|
3043 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3044 | { |
|
|
3045 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3046 | |
|
|
3047 | /* now signal count waiters */ |
|
|
3048 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3049 | { |
|
|
3050 | SV *cb; |
|
|
3051 | |
|
|
3052 | /* swap first two elements so we can shift a waiter */ |
|
|
3053 | cb = AvARRAY (av)[0]; |
|
|
3054 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3055 | AvARRAY (av)[1] = cb; |
|
|
3056 | |
|
|
3057 | cb = av_shift (av); |
|
|
3058 | |
|
|
3059 | if (SvTYPE (cb) == SVt_PVCV) |
1118 | { |
3060 | { |
|
|
3061 | dSP; |
|
|
3062 | PUSHMARK (SP); |
|
|
3063 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1119 | UNLOCK; |
3064 | PUTBACK; |
1120 | SvREFCNT_dec (next_sv); |
3065 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1121 | /* coro_nready is already taken care of by destroy */ |
|
|
1122 | continue; |
|
|
1123 | } |
3066 | } |
|
|
3067 | else |
|
|
3068 | { |
|
|
3069 | api_ready (aTHX_ cb); |
|
|
3070 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3071 | } |
1124 | |
3072 | |
1125 | --coro_nready; |
3073 | SvREFCNT_dec (cb); |
1126 | UNLOCK; |
|
|
1127 | break; |
|
|
1128 | } |
|
|
1129 | |
3074 | |
1130 | /* free this only after the transfer */ |
3075 | --count; |
1131 | prev_sv = SvRV (coro_current); |
3076 | } |
1132 | SvRV_set (coro_current, next_sv); |
|
|
1133 | ta->prev = SvSTATE (prev_sv); |
|
|
1134 | |
|
|
1135 | assert (ta->next->flags & CF_READY); |
|
|
1136 | ta->next->flags &= ~CF_READY; |
|
|
1137 | |
|
|
1138 | LOCK; |
|
|
1139 | free_coro_mortal (aTHX); |
|
|
1140 | coro_mortal = prev_sv; |
|
|
1141 | UNLOCK; |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | static void |
|
|
1145 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1146 | { |
|
|
1147 | api_ready (coro_current); |
|
|
1148 | prepare_schedule (aTHX_ ta); |
|
|
1149 | } |
3077 | } |
1150 | |
3078 | |
1151 | static int |
3079 | static int |
1152 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
3080 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
1153 | { |
3081 | { |
1154 | if (coro_nready) |
3082 | /* if we are about to throw, also stop waiting */ |
|
|
3083 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3084 | } |
|
|
3085 | |
|
|
3086 | static void |
|
|
3087 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3088 | { |
|
|
3089 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3090 | |
|
|
3091 | if (items >= 2) |
|
|
3092 | { |
|
|
3093 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3094 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3095 | |
|
|
3096 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3097 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3098 | |
|
|
3099 | frame->prepare = prepare_nop; |
|
|
3100 | frame->check = slf_check_nop; |
1155 | { |
3101 | } |
1156 | SV *prev = SvRV (coro_current); |
3102 | else if (SvIVX (AvARRAY (av)[0])) |
1157 | prepare_schedule (aTHX_ ta); |
3103 | { |
1158 | api_ready (prev); |
3104 | SvIVX (AvARRAY (av)[0]) = 0; |
1159 | return 1; |
3105 | frame->prepare = prepare_nop; |
|
|
3106 | frame->check = slf_check_nop; |
1160 | } |
3107 | } |
1161 | else |
3108 | else |
|
|
3109 | { |
|
|
3110 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3111 | |
|
|
3112 | av_push (av, waiter); |
|
|
3113 | |
|
|
3114 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3115 | frame->prepare = prepare_schedule; |
|
|
3116 | frame->check = slf_check_signal_wait; |
|
|
3117 | } |
|
|
3118 | } |
|
|
3119 | |
|
|
3120 | /*****************************************************************************/ |
|
|
3121 | /* Coro::AIO */ |
|
|
3122 | |
|
|
3123 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3124 | |
|
|
3125 | /* helper storage struct */ |
|
|
3126 | struct io_state |
|
|
3127 | { |
|
|
3128 | int errorno; |
|
|
3129 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3130 | int laststatval; |
|
|
3131 | Stat_t statcache; |
|
|
3132 | }; |
|
|
3133 | |
|
|
3134 | static void |
|
|
3135 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3136 | { |
|
|
3137 | dXSARGS; |
|
|
3138 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3139 | SV *coro = av_pop (state); |
|
|
3140 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3141 | |
|
|
3142 | av_extend (state, items - 1); |
|
|
3143 | |
|
|
3144 | sv_upgrade (data_sv, SVt_PV); |
|
|
3145 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3146 | SvPOK_only (data_sv); |
|
|
3147 | |
|
|
3148 | { |
|
|
3149 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3150 | |
|
|
3151 | data->errorno = errno; |
|
|
3152 | data->laststype = PL_laststype; |
|
|
3153 | data->laststatval = PL_laststatval; |
|
|
3154 | data->statcache = PL_statcache; |
|
|
3155 | } |
|
|
3156 | |
|
|
3157 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3158 | { |
|
|
3159 | int i; |
|
|
3160 | |
|
|
3161 | for (i = 0; i < items; ++i) |
|
|
3162 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3163 | } |
|
|
3164 | |
|
|
3165 | av_push (state, data_sv); |
|
|
3166 | |
|
|
3167 | api_ready (aTHX_ coro); |
|
|
3168 | SvREFCNT_dec (coro); |
|
|
3169 | SvREFCNT_dec ((AV *)state); |
|
|
3170 | } |
|
|
3171 | |
|
|
3172 | static int |
|
|
3173 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3174 | { |
|
|
3175 | AV *state = (AV *)frame->data; |
|
|
3176 | |
|
|
3177 | /* if we are about to throw, return early */ |
|
|
3178 | /* this does not cancel the aio request, but at least */ |
|
|
3179 | /* it quickly returns */ |
|
|
3180 | if (CORO_THROW) |
1162 | return 0; |
3181 | return 0; |
1163 | } |
|
|
1164 | |
3182 | |
1165 | static void |
3183 | /* one element that is an RV? repeat! */ |
1166 | api_schedule (void) |
3184 | if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV) |
1167 | { |
|
|
1168 | dTHX; |
|
|
1169 | struct transfer_args ta; |
|
|
1170 | |
|
|
1171 | prepare_schedule (aTHX_ &ta); |
|
|
1172 | TRANSFER (ta); |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | static int |
|
|
1176 | api_cede (void) |
|
|
1177 | { |
|
|
1178 | dTHX; |
|
|
1179 | struct transfer_args ta; |
|
|
1180 | |
|
|
1181 | prepare_cede (aTHX_ &ta); |
|
|
1182 | |
|
|
1183 | if (ta.prev != ta.next) |
|
|
1184 | { |
|
|
1185 | TRANSFER (ta); |
|
|
1186 | return 1; |
3185 | return 1; |
|
|
3186 | |
|
|
3187 | /* restore status */ |
|
|
3188 | { |
|
|
3189 | SV *data_sv = av_pop (state); |
|
|
3190 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3191 | |
|
|
3192 | errno = data->errorno; |
|
|
3193 | PL_laststype = data->laststype; |
|
|
3194 | PL_laststatval = data->laststatval; |
|
|
3195 | PL_statcache = data->statcache; |
|
|
3196 | |
|
|
3197 | SvREFCNT_dec (data_sv); |
1187 | } |
3198 | } |
1188 | else |
3199 | |
|
|
3200 | /* push result values */ |
|
|
3201 | { |
|
|
3202 | dSP; |
|
|
3203 | int i; |
|
|
3204 | |
|
|
3205 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3206 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3207 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3208 | |
|
|
3209 | PUTBACK; |
|
|
3210 | } |
|
|
3211 | |
1189 | return 0; |
3212 | return 0; |
1190 | } |
3213 | } |
1191 | |
3214 | |
1192 | static int |
3215 | static void |
1193 | api_cede_notself (void) |
3216 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1194 | { |
3217 | { |
1195 | dTHX; |
3218 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
1196 | struct transfer_args ta; |
3219 | SV *coro_hv = SvRV (coro_current); |
|
|
3220 | struct coro *coro = SvSTATE_hv (coro_hv); |
1197 | |
3221 | |
1198 | if (prepare_cede_notself (aTHX_ &ta)) |
3222 | /* put our coroutine id on the state arg */ |
1199 | { |
3223 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
1200 | TRANSFER (ta); |
3224 | |
1201 | return 1; |
3225 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3226 | if (coro->prio) |
1202 | } |
3227 | { |
1203 | else |
3228 | dSP; |
1204 | return 0; |
|
|
1205 | } |
|
|
1206 | |
3229 | |
|
|
3230 | static SV *prio_cv; |
|
|
3231 | static SV *prio_sv; |
|
|
3232 | |
|
|
3233 | if (ecb_expect_false (!prio_cv)) |
|
|
3234 | { |
|
|
3235 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3236 | prio_sv = newSViv (0); |
|
|
3237 | } |
|
|
3238 | |
|
|
3239 | PUSHMARK (SP); |
|
|
3240 | sv_setiv (prio_sv, coro->prio); |
|
|
3241 | XPUSHs (prio_sv); |
|
|
3242 | |
|
|
3243 | PUTBACK; |
|
|
3244 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3245 | } |
|
|
3246 | |
|
|
3247 | /* now call the original request */ |
|
|
3248 | { |
|
|
3249 | dSP; |
|
|
3250 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3251 | int i; |
|
|
3252 | |
|
|
3253 | PUSHMARK (SP); |
|
|
3254 | |
|
|
3255 | /* first push all args to the stack */ |
|
|
3256 | EXTEND (SP, items + 1); |
|
|
3257 | |
|
|
3258 | for (i = 0; i < items; ++i) |
|
|
3259 | PUSHs (arg [i]); |
|
|
3260 | |
|
|
3261 | /* now push the callback closure */ |
|
|
3262 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3263 | |
|
|
3264 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3265 | PUTBACK; |
|
|
3266 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3267 | } |
|
|
3268 | |
|
|
3269 | /* now that the request is going, we loop till we have a result */ |
|
|
3270 | frame->data = (void *)state; |
|
|
3271 | frame->prepare = prepare_schedule; |
|
|
3272 | frame->check = slf_check_aio_req; |
|
|
3273 | } |
|
|
3274 | |
|
|
3275 | static void |
|
|
3276 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3277 | { |
|
|
3278 | dXSARGS; |
|
|
3279 | |
|
|
3280 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3281 | |
|
|
3282 | XSRETURN_EMPTY; |
|
|
3283 | } |
|
|
3284 | |
|
|
3285 | /*****************************************************************************/ |
|
|
3286 | |
|
|
3287 | #if CORO_CLONE |
|
|
3288 | # include "clone.c" |
|
|
3289 | #endif |
|
|
3290 | |
|
|
3291 | /*****************************************************************************/ |
|
|
3292 | |
|
|
3293 | static SV * |
|
|
3294 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3295 | { |
|
|
3296 | SV *coro_sv; |
|
|
3297 | struct coro *coro; |
|
|
3298 | MAGIC *mg; |
|
|
3299 | HV *hv; |
|
|
3300 | SV *cb; |
|
|
3301 | int i; |
|
|
3302 | |
|
|
3303 | if (argc > 0) |
|
|
3304 | { |
|
|
3305 | cb = s_get_cv_croak (argv [0]); |
|
|
3306 | |
|
|
3307 | if (!is_coro) |
|
|
3308 | { |
|
|
3309 | if (CvISXSUB (cb)) |
|
|
3310 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3311 | |
|
|
3312 | if (!CvROOT (cb)) |
|
|
3313 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3314 | } |
|
|
3315 | } |
|
|
3316 | |
|
|
3317 | Newz (0, coro, 1, struct coro); |
|
|
3318 | coro->args = newAV (); |
|
|
3319 | coro->flags = CF_NEW; |
|
|
3320 | |
|
|
3321 | if (coro_first) coro_first->prev = coro; |
|
|
3322 | coro->next = coro_first; |
|
|
3323 | coro_first = coro; |
|
|
3324 | |
|
|
3325 | coro->hv = hv = newHV (); |
|
|
3326 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3327 | mg->mg_flags |= MGf_DUP; |
|
|
3328 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3329 | |
|
|
3330 | if (argc > 0) |
|
|
3331 | { |
|
|
3332 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3333 | |
|
|
3334 | if (is_coro) |
|
|
3335 | { |
|
|
3336 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3337 | cb = (SV *)cv_coro_run; |
|
|
3338 | } |
|
|
3339 | |
|
|
3340 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3341 | |
|
|
3342 | for (i = 1; i < argc; i++) |
|
|
3343 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3344 | } |
|
|
3345 | |
|
|
3346 | return coro_sv; |
|
|
3347 | } |
|
|
3348 | |
|
|
3349 | #ifndef __cplusplus |
|
|
3350 | ecb_cold XS(boot_Coro__State); |
|
|
3351 | #endif |
|
|
3352 | |
|
|
3353 | #if CORO_JIT |
|
|
3354 | |
|
|
3355 | static void ecb_noinline ecb_cold |
|
|
3356 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3357 | { |
|
|
3358 | dSP; |
|
|
3359 | AV *av = newAV (); |
|
|
3360 | |
|
|
3361 | av_store (av, 3, newSVuv (d)); |
|
|
3362 | av_store (av, 2, newSVuv (c)); |
|
|
3363 | av_store (av, 1, newSVuv (b)); |
|
|
3364 | av_store (av, 0, newSVuv (a)); |
|
|
3365 | |
|
|
3366 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3367 | |
|
|
3368 | PUTBACK; |
|
|
3369 | } |
|
|
3370 | |
|
|
3371 | static void ecb_noinline ecb_cold |
|
|
3372 | jit_init (pTHX) |
|
|
3373 | { |
|
|
3374 | dSP; |
|
|
3375 | SV *load, *save; |
|
|
3376 | char *map_base; |
|
|
3377 | char *load_ptr, *save_ptr; |
|
|
3378 | STRLEN load_len, save_len, map_len; |
|
|
3379 | int count; |
|
|
3380 | |
|
|
3381 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3382 | |
|
|
3383 | PUSHMARK (SP); |
|
|
3384 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3385 | #include "state.h" |
|
|
3386 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3387 | SPAGAIN; |
|
|
3388 | |
|
|
3389 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3390 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3391 | |
|
|
3392 | map_len = load_len + save_len + 16; |
|
|
3393 | |
|
|
3394 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3395 | |
|
|
3396 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3397 | |
|
|
3398 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3399 | memcpy (map_base, load_ptr, load_len); |
|
|
3400 | |
|
|
3401 | map_base += (load_len + 15) & ~15; |
|
|
3402 | |
|
|
3403 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3404 | memcpy (map_base, save_ptr, save_len); |
|
|
3405 | |
|
|
3406 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3407 | /* hackers might have it a bit more difficult */ |
|
|
3408 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3409 | |
|
|
3410 | PUTBACK; |
|
|
3411 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3412 | } |
|
|
3413 | |
|
|
3414 | #endif |
|
|
3415 | |
1207 | MODULE = Coro::State PACKAGE = Coro::State |
3416 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1208 | |
3417 | |
1209 | PROTOTYPES: DISABLE |
3418 | PROTOTYPES: DISABLE |
1210 | |
3419 | |
1211 | BOOT: |
3420 | BOOT: |
1212 | { |
3421 | { |
1213 | #ifdef USE_ITHREADS |
3422 | #ifdef USE_ITHREADS |
1214 | MUTEX_INIT (&coro_mutex); |
3423 | # if CORO_PTHREAD |
|
|
3424 | coro_thx = PERL_GET_CONTEXT; |
1215 | #endif |
3425 | # endif |
1216 | BOOT_PAGESIZE; |
3426 | #endif |
|
|
3427 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3428 | /* just create them one at init time is not clear to me, except for */ |
|
|
3429 | /* programs trying to delete them, but... */ |
|
|
3430 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3431 | DEFSV; |
|
|
3432 | ERRSV; |
|
|
3433 | |
|
|
3434 | cctx_current = cctx_new_empty (); |
|
|
3435 | |
|
|
3436 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
3437 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
3438 | |
|
|
3439 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
3440 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
3441 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
3442 | |
|
|
3443 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
3444 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
3445 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1217 | |
3446 | |
1218 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3447 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1219 | |
3448 | |
1220 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
3449 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1221 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
3450 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1222 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1223 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1224 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1225 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
3451 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1226 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
3452 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1227 | |
3453 | |
1228 | main_mainstack = PL_mainstack; |
3454 | main_mainstack = PL_mainstack; |
1229 | main_top_env = PL_top_env; |
3455 | main_top_env = PL_top_env; |
1230 | |
3456 | |
1231 | while (main_top_env->je_prev) |
3457 | while (main_top_env->je_prev) |
1232 | main_top_env = main_top_env->je_prev; |
3458 | main_top_env = main_top_env->je_prev; |
1233 | |
3459 | |
|
|
3460 | { |
|
|
3461 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3462 | |
|
|
3463 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3464 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3465 | |
|
|
3466 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3467 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3468 | } |
|
|
3469 | |
1234 | coroapi.ver = CORO_API_VERSION; |
3470 | coroapi.ver = CORO_API_VERSION; |
|
|
3471 | coroapi.rev = CORO_API_REVISION; |
|
|
3472 | |
1235 | coroapi.transfer = api_transfer; |
3473 | coroapi.transfer = api_transfer; |
1236 | |
3474 | |
|
|
3475 | coroapi.sv_state = SvSTATE_; |
|
|
3476 | coroapi.execute_slf = api_execute_slf; |
|
|
3477 | coroapi.prepare_nop = prepare_nop; |
|
|
3478 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3479 | coroapi.prepare_cede = prepare_cede; |
|
|
3480 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3481 | |
|
|
3482 | time_init (aTHX); |
|
|
3483 | |
1237 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3484 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3485 | #if CORO_JIT |
|
|
3486 | PUTBACK; |
|
|
3487 | jit_init (aTHX); |
|
|
3488 | SPAGAIN; |
|
|
3489 | #endif |
1238 | } |
3490 | } |
1239 | |
3491 | |
1240 | SV * |
3492 | SV * |
1241 | new (char *klass, ...) |
3493 | new (SV *klass, ...) |
|
|
3494 | ALIAS: |
|
|
3495 | Coro::new = 1 |
1242 | CODE: |
3496 | CODE: |
1243 | { |
3497 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1244 | struct coro *coro; |
|
|
1245 | HV *hv; |
|
|
1246 | int i; |
|
|
1247 | |
|
|
1248 | Newz (0, coro, 1, struct coro); |
|
|
1249 | coro->args = newAV (); |
|
|
1250 | coro->save = CORO_SAVE_DEF; |
|
|
1251 | coro->flags = CF_NEW; |
|
|
1252 | |
|
|
1253 | if (coro_first) coro_first->prev = coro; |
|
|
1254 | coro->next = coro_first; |
|
|
1255 | coro_first = coro; |
|
|
1256 | |
|
|
1257 | coro->hv = hv = newHV (); |
|
|
1258 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1259 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1260 | |
|
|
1261 | for (i = 1; i < items; i++) |
|
|
1262 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1263 | } |
|
|
1264 | OUTPUT: |
|
|
1265 | RETVAL |
|
|
1266 | |
|
|
1267 | int |
|
|
1268 | save (SV *coro, int new_save = -1) |
|
|
1269 | CODE: |
|
|
1270 | RETVAL = api_save (coro, new_save); |
|
|
1271 | OUTPUT: |
3498 | OUTPUT: |
1272 | RETVAL |
3499 | RETVAL |
1273 | |
3500 | |
1274 | int |
3501 | void |
1275 | save_also (SV *coro_sv, int save_also) |
3502 | transfer (...) |
|
|
3503 | PROTOTYPE: $$ |
1276 | CODE: |
3504 | CODE: |
|
|
3505 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
|
|
3506 | |
|
|
3507 | SV * |
|
|
3508 | clone (Coro::State coro) |
|
|
3509 | CODE: |
1277 | { |
3510 | { |
1278 | struct coro *coro = SvSTATE (coro_sv); |
3511 | #if CORO_CLONE |
1279 | RETVAL = coro->save; |
3512 | struct coro *ncoro = coro_clone (aTHX_ coro); |
1280 | coro->save |= save_also; |
3513 | MAGIC *mg; |
|
|
3514 | /* TODO: too much duplication */ |
|
|
3515 | ncoro->hv = newHV (); |
|
|
3516 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3517 | mg->mg_flags |= MGf_DUP; |
|
|
3518 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3519 | #else |
|
|
3520 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3521 | #endif |
1281 | } |
3522 | } |
1282 | OUTPUT: |
3523 | OUTPUT: |
1283 | RETVAL |
3524 | RETVAL |
1284 | |
3525 | |
1285 | void |
3526 | int |
1286 | _set_stacklevel (...) |
3527 | cctx_stacksize (int new_stacksize = 0) |
1287 | ALIAS: |
3528 | PROTOTYPE: ;$ |
1288 | Coro::State::transfer = 1 |
3529 | CODE: |
1289 | Coro::schedule = 2 |
3530 | RETVAL = cctx_stacksize; |
1290 | Coro::cede = 3 |
3531 | if (new_stacksize) |
1291 | Coro::cede_notself = 4 |
|
|
1292 | CODE: |
|
|
1293 | { |
|
|
1294 | struct transfer_args ta; |
|
|
1295 | |
|
|
1296 | switch (ix) |
|
|
1297 | { |
3532 | { |
1298 | case 0: |
3533 | cctx_stacksize = new_stacksize; |
1299 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
3534 | ++cctx_gen; |
1300 | ta.next = 0; |
|
|
1301 | break; |
|
|
1302 | |
|
|
1303 | case 1: |
|
|
1304 | if (items != 2) |
|
|
1305 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1306 | |
|
|
1307 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1308 | break; |
|
|
1309 | |
|
|
1310 | case 2: |
|
|
1311 | prepare_schedule (aTHX_ &ta); |
|
|
1312 | break; |
|
|
1313 | |
|
|
1314 | case 3: |
|
|
1315 | prepare_cede (aTHX_ &ta); |
|
|
1316 | break; |
|
|
1317 | |
|
|
1318 | case 4: |
|
|
1319 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1320 | XSRETURN_EMPTY; |
|
|
1321 | |
|
|
1322 | break; |
|
|
1323 | } |
3535 | } |
1324 | |
|
|
1325 | BARRIER; |
|
|
1326 | TRANSFER (ta); |
|
|
1327 | |
|
|
1328 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1329 | XSRETURN_YES; |
|
|
1330 | } |
|
|
1331 | |
|
|
1332 | bool |
|
|
1333 | _destroy (SV *coro_sv) |
|
|
1334 | CODE: |
|
|
1335 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1336 | OUTPUT: |
3536 | OUTPUT: |
1337 | RETVAL |
3537 | RETVAL |
1338 | |
3538 | |
1339 | void |
3539 | int |
1340 | _exit (code) |
3540 | cctx_max_idle (int max_idle = 0) |
1341 | int code |
3541 | PROTOTYPE: ;$ |
1342 | PROTOTYPE: $ |
|
|
1343 | CODE: |
3542 | CODE: |
1344 | _exit (code); |
3543 | RETVAL = cctx_max_idle; |
1345 | |
3544 | if (max_idle > 1) |
1346 | int |
3545 | cctx_max_idle = max_idle; |
1347 | cctx_stacksize (int new_stacksize = 0) |
|
|
1348 | CODE: |
|
|
1349 | RETVAL = coro_stacksize; |
|
|
1350 | if (new_stacksize) |
|
|
1351 | coro_stacksize = new_stacksize; |
|
|
1352 | OUTPUT: |
3546 | OUTPUT: |
1353 | RETVAL |
3547 | RETVAL |
1354 | |
3548 | |
1355 | int |
3549 | int |
1356 | cctx_count () |
3550 | cctx_count () |
|
|
3551 | PROTOTYPE: |
1357 | CODE: |
3552 | CODE: |
1358 | RETVAL = cctx_count; |
3553 | RETVAL = cctx_count; |
1359 | OUTPUT: |
3554 | OUTPUT: |
1360 | RETVAL |
3555 | RETVAL |
1361 | |
3556 | |
1362 | int |
3557 | int |
1363 | cctx_idle () |
3558 | cctx_idle () |
|
|
3559 | PROTOTYPE: |
1364 | CODE: |
3560 | CODE: |
1365 | RETVAL = cctx_idle; |
3561 | RETVAL = cctx_idle; |
1366 | OUTPUT: |
3562 | OUTPUT: |
1367 | RETVAL |
3563 | RETVAL |
1368 | |
3564 | |
1369 | void |
3565 | void |
1370 | list () |
3566 | list () |
|
|
3567 | PROTOTYPE: |
1371 | PPCODE: |
3568 | PPCODE: |
1372 | { |
3569 | { |
1373 | struct coro *coro; |
3570 | struct coro *coro; |
1374 | for (coro = coro_first; coro; coro = coro->next) |
3571 | for (coro = coro_first; coro; coro = coro->next) |
1375 | if (coro->hv) |
3572 | if (coro->hv) |
1376 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
3573 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
1377 | } |
3574 | } |
1378 | |
3575 | |
1379 | void |
3576 | void |
1380 | _eval (Coro::State coro, SV *coderef) |
3577 | call (Coro::State coro, SV *coderef) |
|
|
3578 | ALIAS: |
|
|
3579 | eval = 1 |
1381 | CODE: |
3580 | CODE: |
1382 | { |
3581 | { |
1383 | if (coro->mainstack) |
3582 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1384 | { |
3583 | { |
1385 | struct coro temp; |
3584 | struct coro *current = SvSTATE_current; |
1386 | Zero (&temp, 1, struct coro); |
3585 | struct CoroSLF slf_save; |
1387 | temp.save = CORO_SAVE_ALL; |
|
|
1388 | |
3586 | |
1389 | if (!(coro->flags & CF_RUNNING)) |
3587 | if (current != coro) |
1390 | { |
3588 | { |
|
|
3589 | PUTBACK; |
1391 | save_perl (aTHX_ &temp); |
3590 | save_perl (aTHX_ current); |
1392 | load_perl (aTHX_ coro); |
3591 | load_perl (aTHX_ coro); |
|
|
3592 | /* the coro is most likely in an active SLF call. |
|
|
3593 | * while not strictly required (the code we execute is |
|
|
3594 | * not allowed to call any SLF functions), it's cleaner |
|
|
3595 | * to reinitialise the slf_frame and restore it later. |
|
|
3596 | * This might one day allow us to actually do SLF calls |
|
|
3597 | * from code executed here. |
|
|
3598 | */ |
|
|
3599 | slf_save = slf_frame; |
|
|
3600 | slf_frame.prepare = 0; |
|
|
3601 | SPAGAIN; |
1393 | } |
3602 | } |
1394 | |
3603 | |
1395 | { |
3604 | PUSHSTACK; |
1396 | dSP; |
3605 | |
1397 | ENTER; |
|
|
1398 | SAVETMPS; |
|
|
1399 | PUSHMARK (SP); |
3606 | PUSHMARK (SP); |
1400 | PUTBACK; |
3607 | PUTBACK; |
|
|
3608 | |
|
|
3609 | if (ix) |
|
|
3610 | eval_sv (coderef, 0); |
|
|
3611 | else |
1401 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3612 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3613 | |
|
|
3614 | POPSTACK; |
1402 | SPAGAIN; |
3615 | SPAGAIN; |
1403 | FREETMPS; |
|
|
1404 | LEAVE; |
|
|
1405 | PUTBACK; |
|
|
1406 | } |
|
|
1407 | |
3616 | |
1408 | if (!(coro->flags & CF_RUNNING)) |
3617 | if (current != coro) |
1409 | { |
3618 | { |
|
|
3619 | PUTBACK; |
|
|
3620 | slf_frame = slf_save; |
1410 | save_perl (aTHX_ coro); |
3621 | save_perl (aTHX_ coro); |
1411 | load_perl (aTHX_ &temp); |
3622 | load_perl (aTHX_ current); |
|
|
3623 | SPAGAIN; |
1412 | } |
3624 | } |
1413 | } |
3625 | } |
1414 | } |
3626 | } |
1415 | |
3627 | |
1416 | SV * |
3628 | SV * |
1417 | is_ready (Coro::State coro) |
3629 | is_ready (Coro::State coro) |
1418 | PROTOTYPE: $ |
3630 | PROTOTYPE: $ |
1419 | ALIAS: |
3631 | ALIAS: |
1420 | is_ready = CF_READY |
3632 | is_ready = CF_READY |
1421 | is_running = CF_RUNNING |
3633 | is_running = CF_RUNNING |
1422 | is_new = CF_NEW |
3634 | is_new = CF_NEW |
1423 | is_destroyed = CF_DESTROYED |
3635 | is_destroyed = CF_ZOMBIE |
|
|
3636 | is_zombie = CF_ZOMBIE |
|
|
3637 | is_suspended = CF_SUSPENDED |
1424 | CODE: |
3638 | CODE: |
1425 | RETVAL = boolSV (coro->flags & ix); |
3639 | RETVAL = boolSV (coro->flags & ix); |
1426 | OUTPUT: |
3640 | OUTPUT: |
1427 | RETVAL |
3641 | RETVAL |
1428 | |
3642 | |
1429 | IV |
3643 | void |
|
|
3644 | throw (SV *self, SV *exception = &PL_sv_undef) |
|
|
3645 | PROTOTYPE: $;$ |
|
|
3646 | CODE: |
|
|
3647 | { |
|
|
3648 | struct coro *coro = SvSTATE (self); |
|
|
3649 | struct coro *current = SvSTATE_current; |
|
|
3650 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
|
|
3651 | SvREFCNT_dec (*exceptionp); |
|
|
3652 | SvGETMAGIC (exception); |
|
|
3653 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3654 | |
|
|
3655 | api_ready (aTHX_ self); |
|
|
3656 | } |
|
|
3657 | |
|
|
3658 | void |
|
|
3659 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3660 | PROTOTYPE: $;$ |
|
|
3661 | C_ARGS: aTHX_ coro, flags |
|
|
3662 | |
|
|
3663 | SV * |
|
|
3664 | has_cctx (Coro::State coro) |
|
|
3665 | PROTOTYPE: $ |
|
|
3666 | CODE: |
|
|
3667 | /* maybe manage the running flag differently */ |
|
|
3668 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
|
|
3669 | OUTPUT: |
|
|
3670 | RETVAL |
|
|
3671 | |
|
|
3672 | int |
|
|
3673 | is_traced (Coro::State coro) |
|
|
3674 | PROTOTYPE: $ |
|
|
3675 | CODE: |
|
|
3676 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
3677 | OUTPUT: |
|
|
3678 | RETVAL |
|
|
3679 | |
|
|
3680 | UV |
1430 | rss (Coro::State coro) |
3681 | rss (Coro::State coro) |
1431 | PROTOTYPE: $ |
3682 | PROTOTYPE: $ |
|
|
3683 | ALIAS: |
|
|
3684 | usecount = 1 |
1432 | CODE: |
3685 | CODE: |
1433 | RETVAL = coro_rss (coro); |
3686 | switch (ix) |
|
|
3687 | { |
|
|
3688 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
3689 | case 1: RETVAL = coro->usecount; break; |
|
|
3690 | } |
1434 | OUTPUT: |
3691 | OUTPUT: |
1435 | RETVAL |
3692 | RETVAL |
1436 | |
3693 | |
|
|
3694 | void |
|
|
3695 | force_cctx () |
|
|
3696 | PROTOTYPE: |
|
|
3697 | CODE: |
|
|
3698 | cctx_current->idle_sp = 0; |
|
|
3699 | |
|
|
3700 | void |
|
|
3701 | swap_defsv (Coro::State self) |
|
|
3702 | PROTOTYPE: $ |
|
|
3703 | ALIAS: |
|
|
3704 | swap_defav = 1 |
|
|
3705 | CODE: |
|
|
3706 | if (!self->slot) |
|
|
3707 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3708 | else |
|
|
3709 | { |
|
|
3710 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3711 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3712 | |
|
|
3713 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3714 | } |
|
|
3715 | |
|
|
3716 | void |
|
|
3717 | cancel (Coro::State self) |
|
|
3718 | CODE: |
|
|
3719 | coro_state_destroy (aTHX_ self); |
|
|
3720 | |
|
|
3721 | SV * |
|
|
3722 | enable_times (int enabled = enable_times) |
|
|
3723 | CODE: |
|
|
3724 | { |
|
|
3725 | RETVAL = boolSV (enable_times); |
|
|
3726 | |
|
|
3727 | if (enabled != enable_times) |
|
|
3728 | { |
|
|
3729 | enable_times = enabled; |
|
|
3730 | |
|
|
3731 | coro_times_update (); |
|
|
3732 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3733 | } |
|
|
3734 | } |
|
|
3735 | OUTPUT: |
|
|
3736 | RETVAL |
|
|
3737 | |
|
|
3738 | void |
|
|
3739 | times (Coro::State self) |
|
|
3740 | PPCODE: |
|
|
3741 | { |
|
|
3742 | struct coro *current = SvSTATE (coro_current); |
|
|
3743 | |
|
|
3744 | if (ecb_expect_false (current == self)) |
|
|
3745 | { |
|
|
3746 | coro_times_update (); |
|
|
3747 | coro_times_add (SvSTATE (coro_current)); |
|
|
3748 | } |
|
|
3749 | |
|
|
3750 | EXTEND (SP, 2); |
|
|
3751 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3752 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3753 | |
|
|
3754 | if (ecb_expect_false (current == self)) |
|
|
3755 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3756 | } |
|
|
3757 | |
|
|
3758 | void |
|
|
3759 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3760 | CODE: |
|
|
3761 | { |
|
|
3762 | struct coro *current = SvSTATE_current; |
|
|
3763 | |
|
|
3764 | if (current == coro) |
|
|
3765 | SWAP_SVS (current); |
|
|
3766 | |
|
|
3767 | if (!coro->swap_sv) |
|
|
3768 | coro->swap_sv = newAV (); |
|
|
3769 | |
|
|
3770 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3771 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3772 | |
|
|
3773 | if (current == coro) |
|
|
3774 | SWAP_SVS (current); |
|
|
3775 | } |
|
|
3776 | |
1437 | |
3777 | |
1438 | MODULE = Coro::State PACKAGE = Coro |
3778 | MODULE = Coro::State PACKAGE = Coro |
1439 | |
3779 | |
1440 | BOOT: |
3780 | BOOT: |
1441 | { |
3781 | { |
1442 | int i; |
3782 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
3783 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3784 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3785 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
|
|
3786 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3787 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3788 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3789 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1443 | |
3790 | |
|
|
3791 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3792 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3793 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3794 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3795 | |
1444 | coro_stash = gv_stashpv ("Coro", TRUE); |
3796 | coro_stash = gv_stashpv ("Coro", TRUE); |
1445 | |
3797 | |
1446 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3798 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1447 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3799 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1448 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3800 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1449 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3801 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1450 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3802 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1451 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3803 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1452 | |
|
|
1453 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1454 | SvREADONLY_on (coro_current); |
|
|
1455 | |
|
|
1456 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1457 | coro_ready[i] = newAV (); |
|
|
1458 | |
3804 | |
1459 | { |
3805 | { |
1460 | SV *sv = perl_get_sv("Coro::API", 1); |
3806 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1461 | |
3807 | |
1462 | coroapi.schedule = api_schedule; |
3808 | coroapi.schedule = api_schedule; |
1463 | coroapi.save = api_save; |
3809 | coroapi.schedule_to = api_schedule_to; |
1464 | coroapi.cede = api_cede; |
3810 | coroapi.cede = api_cede; |
1465 | coroapi.cede_notself = api_cede_notself; |
3811 | coroapi.cede_notself = api_cede_notself; |
1466 | coroapi.ready = api_ready; |
3812 | coroapi.ready = api_ready; |
1467 | coroapi.is_ready = api_is_ready; |
3813 | coroapi.is_ready = api_is_ready; |
1468 | coroapi.nready = &coro_nready; |
3814 | coroapi.nready = coro_nready; |
1469 | coroapi.current = coro_current; |
3815 | coroapi.current = coro_current; |
1470 | |
3816 | |
1471 | GCoroAPI = &coroapi; |
3817 | /*GCoroAPI = &coroapi;*/ |
1472 | sv_setiv (sv, (IV)&coroapi); |
3818 | sv_setiv (sv, (IV)&coroapi); |
1473 | SvREADONLY_on (sv); |
3819 | SvREADONLY_on (sv); |
1474 | } |
3820 | } |
1475 | } |
3821 | } |
|
|
3822 | |
|
|
3823 | SV * |
|
|
3824 | async (...) |
|
|
3825 | PROTOTYPE: &@ |
|
|
3826 | CODE: |
|
|
3827 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3828 | api_ready (aTHX_ RETVAL); |
|
|
3829 | OUTPUT: |
|
|
3830 | RETVAL |
|
|
3831 | |
|
|
3832 | void |
|
|
3833 | _destroy (Coro::State coro) |
|
|
3834 | CODE: |
|
|
3835 | /* used by the manager thread */ |
|
|
3836 | coro_state_destroy (aTHX_ coro); |
|
|
3837 | |
|
|
3838 | void |
|
|
3839 | on_destroy (Coro::State coro, SV *cb) |
|
|
3840 | CODE: |
|
|
3841 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3842 | |
|
|
3843 | void |
|
|
3844 | join (...) |
|
|
3845 | CODE: |
|
|
3846 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3847 | |
|
|
3848 | void |
|
|
3849 | terminate (...) |
|
|
3850 | CODE: |
|
|
3851 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3852 | |
|
|
3853 | void |
|
|
3854 | cancel (...) |
|
|
3855 | CODE: |
|
|
3856 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3857 | |
|
|
3858 | int |
|
|
3859 | safe_cancel (Coro::State self, ...) |
|
|
3860 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
3861 | |
|
|
3862 | void |
|
|
3863 | schedule (...) |
|
|
3864 | CODE: |
|
|
3865 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3866 | |
|
|
3867 | void |
|
|
3868 | schedule_to (...) |
|
|
3869 | CODE: |
|
|
3870 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3871 | |
|
|
3872 | void |
|
|
3873 | cede_to (...) |
|
|
3874 | CODE: |
|
|
3875 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3876 | |
|
|
3877 | void |
|
|
3878 | cede (...) |
|
|
3879 | CODE: |
|
|
3880 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3881 | |
|
|
3882 | void |
|
|
3883 | cede_notself (...) |
|
|
3884 | CODE: |
|
|
3885 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1476 | |
3886 | |
1477 | void |
3887 | void |
1478 | _set_current (SV *current) |
3888 | _set_current (SV *current) |
1479 | PROTOTYPE: $ |
3889 | PROTOTYPE: $ |
1480 | CODE: |
3890 | CODE: |
1481 | SvREFCNT_dec (SvRV (coro_current)); |
3891 | SvREFCNT_dec (SvRV (coro_current)); |
1482 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3892 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
3893 | |
|
|
3894 | void |
|
|
3895 | _set_readyhook (SV *hook) |
|
|
3896 | PROTOTYPE: $ |
|
|
3897 | CODE: |
|
|
3898 | SvREFCNT_dec (coro_readyhook); |
|
|
3899 | SvGETMAGIC (hook); |
|
|
3900 | if (SvOK (hook)) |
|
|
3901 | { |
|
|
3902 | coro_readyhook = newSVsv (hook); |
|
|
3903 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3904 | } |
|
|
3905 | else |
|
|
3906 | { |
|
|
3907 | coro_readyhook = 0; |
|
|
3908 | CORO_READYHOOK = 0; |
|
|
3909 | } |
1483 | |
3910 | |
1484 | int |
3911 | int |
1485 | prio (Coro::State coro, int newprio = 0) |
3912 | prio (Coro::State coro, int newprio = 0) |
|
|
3913 | PROTOTYPE: $;$ |
1486 | ALIAS: |
3914 | ALIAS: |
1487 | nice = 1 |
3915 | nice = 1 |
1488 | CODE: |
3916 | CODE: |
1489 | { |
3917 | { |
1490 | RETVAL = coro->prio; |
3918 | RETVAL = coro->prio; |
… | |
… | |
1492 | if (items > 1) |
3920 | if (items > 1) |
1493 | { |
3921 | { |
1494 | if (ix) |
3922 | if (ix) |
1495 | newprio = coro->prio - newprio; |
3923 | newprio = coro->prio - newprio; |
1496 | |
3924 | |
1497 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3925 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1498 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3926 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1499 | |
3927 | |
1500 | coro->prio = newprio; |
3928 | coro->prio = newprio; |
1501 | } |
3929 | } |
1502 | } |
3930 | } |
1503 | OUTPUT: |
3931 | OUTPUT: |
… | |
… | |
1505 | |
3933 | |
1506 | SV * |
3934 | SV * |
1507 | ready (SV *self) |
3935 | ready (SV *self) |
1508 | PROTOTYPE: $ |
3936 | PROTOTYPE: $ |
1509 | CODE: |
3937 | CODE: |
1510 | RETVAL = boolSV (api_ready (self)); |
3938 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1511 | OUTPUT: |
3939 | OUTPUT: |
1512 | RETVAL |
3940 | RETVAL |
1513 | |
3941 | |
1514 | int |
3942 | int |
1515 | nready (...) |
3943 | nready (...) |
… | |
… | |
1517 | CODE: |
3945 | CODE: |
1518 | RETVAL = coro_nready; |
3946 | RETVAL = coro_nready; |
1519 | OUTPUT: |
3947 | OUTPUT: |
1520 | RETVAL |
3948 | RETVAL |
1521 | |
3949 | |
1522 | MODULE = Coro::State PACKAGE = Coro::AIO |
3950 | void |
|
|
3951 | suspend (Coro::State self) |
|
|
3952 | PROTOTYPE: $ |
|
|
3953 | CODE: |
|
|
3954 | self->flags |= CF_SUSPENDED; |
|
|
3955 | |
|
|
3956 | void |
|
|
3957 | resume (Coro::State self) |
|
|
3958 | PROTOTYPE: $ |
|
|
3959 | CODE: |
|
|
3960 | self->flags &= ~CF_SUSPENDED; |
|
|
3961 | |
|
|
3962 | void |
|
|
3963 | _pool_handler (...) |
|
|
3964 | CODE: |
|
|
3965 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3966 | |
|
|
3967 | void |
|
|
3968 | async_pool (SV *cv, ...) |
|
|
3969 | PROTOTYPE: &@ |
|
|
3970 | PPCODE: |
|
|
3971 | { |
|
|
3972 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3973 | AV *av = newAV (); |
|
|
3974 | SV *cb = ST (0); |
|
|
3975 | int i; |
|
|
3976 | |
|
|
3977 | av_extend (av, items - 2); |
|
|
3978 | for (i = 1; i < items; ++i) |
|
|
3979 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3980 | |
|
|
3981 | if ((SV *)hv == &PL_sv_undef) |
|
|
3982 | { |
|
|
3983 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
|
|
3984 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
|
|
3985 | SvREFCNT_dec (sv); |
|
|
3986 | } |
|
|
3987 | |
|
|
3988 | { |
|
|
3989 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3990 | |
|
|
3991 | assert (!coro->invoke_cb); |
|
|
3992 | assert (!coro->invoke_av); |
|
|
3993 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3994 | coro->invoke_av = av; |
|
|
3995 | } |
|
|
3996 | |
|
|
3997 | api_ready (aTHX_ (SV *)hv); |
|
|
3998 | |
|
|
3999 | if (GIMME_V != G_VOID) |
|
|
4000 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4001 | else |
|
|
4002 | SvREFCNT_dec (hv); |
|
|
4003 | } |
1523 | |
4004 | |
1524 | SV * |
4005 | SV * |
1525 | _get_state () |
4006 | rouse_cb () |
|
|
4007 | PROTOTYPE: |
1526 | CODE: |
4008 | CODE: |
1527 | { |
4009 | RETVAL = coro_new_rouse_cb (aTHX); |
1528 | struct io_state *data; |
|
|
1529 | |
|
|
1530 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1531 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1532 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1533 | SvPOK_only (RETVAL); |
|
|
1534 | |
|
|
1535 | data->errorno = errno; |
|
|
1536 | data->laststype = PL_laststype; |
|
|
1537 | data->laststatval = PL_laststatval; |
|
|
1538 | data->statcache = PL_statcache; |
|
|
1539 | } |
|
|
1540 | OUTPUT: |
4010 | OUTPUT: |
1541 | RETVAL |
4011 | RETVAL |
1542 | |
4012 | |
1543 | void |
4013 | void |
1544 | _set_state (char *data_) |
4014 | rouse_wait (...) |
|
|
4015 | PROTOTYPE: ;$ |
|
|
4016 | PPCODE: |
|
|
4017 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4018 | |
|
|
4019 | void |
|
|
4020 | on_enter (SV *block) |
|
|
4021 | ALIAS: |
|
|
4022 | on_leave = 1 |
1545 | PROTOTYPE: $ |
4023 | PROTOTYPE: & |
1546 | CODE: |
4024 | CODE: |
1547 | { |
4025 | { |
1548 | struct io_state *data = (void *)data_; |
4026 | struct coro *coro = SvSTATE_current; |
|
|
4027 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1549 | |
4028 | |
1550 | errno = data->errorno; |
4029 | block = s_get_cv_croak (block); |
1551 | PL_laststype = data->laststype; |
|
|
1552 | PL_laststatval = data->laststatval; |
|
|
1553 | PL_statcache = data->statcache; |
|
|
1554 | } |
|
|
1555 | |
4030 | |
|
|
4031 | if (!*avp) |
|
|
4032 | *avp = newAV (); |
|
|
4033 | |
|
|
4034 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4035 | |
|
|
4036 | if (!ix) |
|
|
4037 | on_enterleave_call (aTHX_ block); |
|
|
4038 | |
|
|
4039 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4040 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4041 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4042 | } |
|
|
4043 | |
|
|
4044 | |
|
|
4045 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4046 | |
|
|
4047 | BOOT: |
|
|
4048 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4049 | |
|
|
4050 | |
|
|
4051 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4052 | |
|
|
4053 | SV * |
|
|
4054 | new (SV *klass, SV *count = 0) |
|
|
4055 | CODE: |
|
|
4056 | { |
|
|
4057 | int semcnt = 1; |
|
|
4058 | |
|
|
4059 | if (count) |
|
|
4060 | { |
|
|
4061 | SvGETMAGIC (count); |
|
|
4062 | |
|
|
4063 | if (SvOK (count)) |
|
|
4064 | semcnt = SvIV (count); |
|
|
4065 | } |
|
|
4066 | |
|
|
4067 | RETVAL = sv_bless ( |
|
|
4068 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4069 | GvSTASH (CvGV (cv)) |
|
|
4070 | ); |
|
|
4071 | } |
|
|
4072 | OUTPUT: |
|
|
4073 | RETVAL |
|
|
4074 | |
|
|
4075 | # helper for Coro::Channel and others |
|
|
4076 | SV * |
|
|
4077 | _alloc (int count) |
|
|
4078 | CODE: |
|
|
4079 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4080 | OUTPUT: |
|
|
4081 | RETVAL |
|
|
4082 | |
|
|
4083 | SV * |
|
|
4084 | count (SV *self) |
|
|
4085 | CODE: |
|
|
4086 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4087 | OUTPUT: |
|
|
4088 | RETVAL |
|
|
4089 | |
|
|
4090 | void |
|
|
4091 | up (SV *self, int adjust = 1) |
|
|
4092 | ALIAS: |
|
|
4093 | adjust = 1 |
|
|
4094 | CODE: |
|
|
4095 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
4096 | |
|
|
4097 | void |
|
|
4098 | down (...) |
|
|
4099 | CODE: |
|
|
4100 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4101 | |
|
|
4102 | void |
|
|
4103 | wait (...) |
|
|
4104 | CODE: |
|
|
4105 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4106 | |
|
|
4107 | void |
|
|
4108 | try (SV *self) |
|
|
4109 | PPCODE: |
|
|
4110 | { |
|
|
4111 | AV *av = (AV *)SvRV (self); |
|
|
4112 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4113 | IV count = SvIVX (count_sv); |
|
|
4114 | |
|
|
4115 | if (count > 0) |
|
|
4116 | { |
|
|
4117 | --count; |
|
|
4118 | SvIVX (count_sv) = count; |
|
|
4119 | XSRETURN_YES; |
|
|
4120 | } |
|
|
4121 | else |
|
|
4122 | XSRETURN_NO; |
|
|
4123 | } |
|
|
4124 | |
|
|
4125 | void |
|
|
4126 | waiters (SV *self) |
|
|
4127 | PPCODE: |
|
|
4128 | { |
|
|
4129 | AV *av = (AV *)SvRV (self); |
|
|
4130 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4131 | |
|
|
4132 | if (GIMME_V == G_SCALAR) |
|
|
4133 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4134 | else |
|
|
4135 | { |
|
|
4136 | int i; |
|
|
4137 | EXTEND (SP, wcount); |
|
|
4138 | for (i = 1; i <= wcount; ++i) |
|
|
4139 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4140 | } |
|
|
4141 | } |
|
|
4142 | |
|
|
4143 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4144 | |
|
|
4145 | void |
|
|
4146 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4147 | PPCODE: |
|
|
4148 | { |
|
|
4149 | AV *av = (AV *)SvRV (sem); |
|
|
4150 | |
|
|
4151 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4152 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4153 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4154 | XSRETURN_YES; |
|
|
4155 | |
|
|
4156 | XSRETURN_NO; |
|
|
4157 | } |
|
|
4158 | |
|
|
4159 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4160 | |
|
|
4161 | SV * |
|
|
4162 | new (SV *klass) |
|
|
4163 | CODE: |
|
|
4164 | RETVAL = sv_bless ( |
|
|
4165 | coro_waitarray_new (aTHX_ 0), |
|
|
4166 | GvSTASH (CvGV (cv)) |
|
|
4167 | ); |
|
|
4168 | OUTPUT: |
|
|
4169 | RETVAL |
|
|
4170 | |
|
|
4171 | void |
|
|
4172 | wait (...) |
|
|
4173 | CODE: |
|
|
4174 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4175 | |
|
|
4176 | void |
|
|
4177 | broadcast (SV *self) |
|
|
4178 | CODE: |
|
|
4179 | { |
|
|
4180 | AV *av = (AV *)SvRV (self); |
|
|
4181 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4182 | } |
|
|
4183 | |
|
|
4184 | void |
|
|
4185 | send (SV *self) |
|
|
4186 | CODE: |
|
|
4187 | { |
|
|
4188 | AV *av = (AV *)SvRV (self); |
|
|
4189 | |
|
|
4190 | if (AvFILLp (av)) |
|
|
4191 | coro_signal_wake (aTHX_ av, 1); |
|
|
4192 | else |
|
|
4193 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4194 | } |
|
|
4195 | |
|
|
4196 | IV |
|
|
4197 | awaited (SV *self) |
|
|
4198 | CODE: |
|
|
4199 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4200 | OUTPUT: |
|
|
4201 | RETVAL |
|
|
4202 | |
|
|
4203 | |
|
|
4204 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4205 | |
|
|
4206 | BOOT: |
|
|
4207 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4208 | |
|
|
4209 | void |
|
|
4210 | _schedule (...) |
|
|
4211 | CODE: |
|
|
4212 | { |
|
|
4213 | static int incede; |
|
|
4214 | |
|
|
4215 | api_cede_notself (aTHX); |
|
|
4216 | |
|
|
4217 | ++incede; |
|
|
4218 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4219 | ; |
|
|
4220 | |
|
|
4221 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4222 | if (coro_nready >= incede) |
|
|
4223 | { |
|
|
4224 | PUSHMARK (SP); |
|
|
4225 | PUTBACK; |
|
|
4226 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4227 | } |
|
|
4228 | |
|
|
4229 | --incede; |
|
|
4230 | } |
|
|
4231 | |
|
|
4232 | |
|
|
4233 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4234 | |
|
|
4235 | void |
|
|
4236 | _register (char *target, char *proto, SV *req) |
|
|
4237 | CODE: |
|
|
4238 | { |
|
|
4239 | SV *req_cv = s_get_cv_croak (req); |
|
|
4240 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4241 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4242 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4243 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4244 | } |
|
|
4245 | |
|
|
4246 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4247 | |
|
|
4248 | void |
|
|
4249 | patch_pp_sselect () |
|
|
4250 | CODE: |
|
|
4251 | if (!coro_old_pp_sselect) |
|
|
4252 | { |
|
|
4253 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4254 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4255 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4256 | } |
|
|
4257 | |
|
|
4258 | void |
|
|
4259 | unpatch_pp_sselect () |
|
|
4260 | CODE: |
|
|
4261 | if (coro_old_pp_sselect) |
|
|
4262 | { |
|
|
4263 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4264 | coro_old_pp_sselect = 0; |
|
|
4265 | } |
|
|
4266 | |
|
|
4267 | MODULE = Coro::State PACKAGE = Coro::Util |
|
|
4268 | |
|
|
4269 | void |
|
|
4270 | _exit (int code) |
|
|
4271 | CODE: |
|
|
4272 | _exit (code); |
|
|
4273 | |
|
|
4274 | NV |
|
|
4275 | time () |
|
|
4276 | CODE: |
|
|
4277 | RETVAL = nvtime (aTHX); |
|
|
4278 | OUTPUT: |
|
|
4279 | RETVAL |
|
|
4280 | |
|
|
4281 | NV |
|
|
4282 | gettimeofday () |
|
|
4283 | PPCODE: |
|
|
4284 | { |
|
|
4285 | UV tv [2]; |
|
|
4286 | u2time (aTHX_ tv); |
|
|
4287 | EXTEND (SP, 2); |
|
|
4288 | PUSHs (sv_2mortal (newSVuv (tv [0]))); |
|
|
4289 | PUSHs (sv_2mortal (newSVuv (tv [1]))); |
|
|
4290 | } |
|
|
4291 | |