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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 |
4 | #define PERL_EXT |
9 | #define PERL_EXT |
5 | |
10 | |
6 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
7 | #include "perl.h" |
12 | #include "perl.h" |
8 | #include "XSUB.h" |
13 | #include "XSUB.h" |
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14 | #include "perliol.h" |
9 | |
15 | |
10 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
11 | |
17 | |
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18 | #define ECB_NO_THREADS 1 |
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19 | #define ECB_NO_LIBM 1 |
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20 | #include "ecb.h" |
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21 | |
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22 | #include <stddef.h> |
12 | #include <stdio.h> |
23 | #include <stdio.h> |
13 | #include <errno.h> |
24 | #include <errno.h> |
14 | #include <assert.h> |
25 | #include <assert.h> |
15 | #include <inttypes.h> /* portable stdint.h */ |
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16 | |
26 | |
17 | #ifdef HAVE_MMAP |
27 | #ifndef SvREFCNT_dec_NN |
18 | # include <unistd.h> |
28 | #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
19 | # include <sys/mman.h> |
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20 | # ifndef MAP_ANONYMOUS |
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21 | # ifdef MAP_ANON |
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22 | # define MAP_ANONYMOUS MAP_ANON |
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23 | # else |
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24 | # undef HAVE_MMAP |
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25 | # endif |
29 | #endif |
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30 | |
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31 | #ifndef SvREFCNT_inc_NN |
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32 | #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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33 | #endif |
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34 | |
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35 | #ifndef SVs_PADSTALE |
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36 | # define SVs_PADSTALE 0 |
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37 | #endif |
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38 | |
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39 | #ifdef PadARRAY |
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40 | # define NEWPADAPI 1 |
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41 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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42 | #else |
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43 | typedef AV PADNAMELIST; |
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44 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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45 | typedef AV PADLIST; |
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46 | typedef AV PAD; |
26 | # endif |
47 | # endif |
27 | # include <limits.h> |
48 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
28 | # ifndef PAGESIZE |
49 | # define PadlistMAX(pl) AvFILLp (pl) |
29 | # define PAGESIZE pagesize |
50 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
30 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
51 | # define PadARRAY AvARRAY |
31 | static long pagesize; |
52 | # define PadMAX AvFILLp |
32 | # else |
53 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
33 | # define BOOT_PAGESIZE (void)0 |
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34 | # endif |
54 | #endif |
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55 | #ifndef PadnamelistREFCNT |
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56 | # define PadnamelistREFCNT(pnl) SvREFCNT (pnl) |
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57 | #endif |
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58 | #ifndef PadnamelistREFCNT_dec |
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59 | # define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl) |
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60 | #endif |
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61 | |
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62 | /* 5.19.something has replaced SVt_BIND by SVt_INVLIST */ |
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63 | /* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */ |
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64 | #if PERL_VERSION_ATLEAST(5,19,0) |
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65 | # define SVt_BIND SVt_IV |
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66 | #endif |
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67 | |
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68 | #if defined(_WIN32) |
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69 | # undef HAS_GETTIMEOFDAY |
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70 | # undef setjmp |
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71 | # undef longjmp |
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72 | # undef _exit |
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73 | # define setjmp _setjmp /* deep magic */ |
35 | #else |
74 | #else |
36 | # define PAGESIZE 0 |
75 | # include <inttypes.h> /* most portable stdint.h */ |
37 | # define BOOT_PAGESIZE (void)0 |
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38 | #endif |
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39 | |
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40 | #if CORO_USE_VALGRIND |
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41 | # include <valgrind/valgrind.h> |
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42 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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43 | #else |
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44 | # define REGISTER_STACK(cctx,start,end) |
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45 | #endif |
76 | #endif |
46 | |
77 | |
47 | /* the maximum number of idle cctx that will be pooled */ |
78 | /* the maximum number of idle cctx that will be pooled */ |
48 | #define MAX_IDLE_CCTX 8 |
79 | static int cctx_max_idle = 4; |
49 | |
80 | |
50 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
81 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
51 | (PERL_REVISION > (a) \ |
82 | # define HAS_SCOPESTACK_NAME 1 |
52 | || (PERL_REVISION == (a) \ |
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53 | && (PERL_VERSION > (b) \ |
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54 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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55 | |
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56 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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57 | # ifndef PL_ppaddr |
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58 | # define PL_ppaddr ppaddr |
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59 | # endif |
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60 | # ifndef call_sv |
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61 | # define call_sv perl_call_sv |
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62 | # endif |
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63 | # ifndef get_sv |
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64 | # define get_sv perl_get_sv |
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65 | # endif |
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66 | # ifndef get_cv |
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67 | # define get_cv perl_get_cv |
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68 | # endif |
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69 | # ifndef IS_PADGV |
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70 | # define IS_PADGV(v) 0 |
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71 | # endif |
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72 | # ifndef IS_PADCONST |
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73 | # define IS_PADCONST(v) 0 |
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74 | # endif |
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75 | #endif |
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76 | |
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77 | /* 5.8.7 */ |
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78 | #ifndef SvRV_set |
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79 | # define SvRV_set(s,v) SvRV(s) = (v) |
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80 | #endif |
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81 | |
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82 | /* 5.8.8 */ |
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83 | #ifndef GV_NOTQUAL |
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84 | # define GV_NOTQUAL 0 |
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85 | #endif |
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86 | #ifndef newSV |
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87 | # define newSV(l) NEWSV(0,l) |
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88 | #endif |
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89 | |
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90 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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91 | # undef CORO_STACKGUARD |
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92 | #endif |
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93 | |
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94 | #ifndef CORO_STACKGUARD |
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95 | # define CORO_STACKGUARD 0 |
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96 | #endif |
83 | #endif |
97 | |
84 | |
98 | /* prefer perl internal functions over our own? */ |
85 | /* prefer perl internal functions over our own? */ |
99 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
86 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
100 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
87 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
101 | #endif |
88 | #endif |
102 | |
89 | |
103 | /* The next macros try to return the current stack pointer, in an as |
90 | /* The next macros try to return the current stack pointer, in an as |
104 | * portable way as possible. */ |
91 | * portable way as possible. */ |
105 | #define dSTACKLEVEL volatile char stacklevel |
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106 | #define STACKLEVEL ((void *)&stacklevel) |
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107 | |
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108 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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109 | |
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110 | #if __GNUC__ >= 3 |
92 | #if __GNUC__ >= 4 |
111 | # define attribute(x) __attribute__(x) |
93 | # define dSTACKLEVEL int stacklevel_dummy |
112 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
94 | # define STACKLEVEL __builtin_frame_address (0) |
113 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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114 | #else |
95 | #else |
115 | # define attribute(x) |
96 | # define dSTACKLEVEL volatile void *stacklevel |
116 | # define BARRIER |
97 | # define STACKLEVEL ((void *)&stacklevel) |
117 | # define expect(expr,value) (expr) |
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118 | #endif |
98 | #endif |
119 | |
99 | |
120 | #define expect_false(expr) expect ((expr) != 0, 0) |
100 | #define IN_DESTRUCT PL_dirty |
121 | #define expect_true(expr) expect ((expr) != 0, 1) |
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122 | |
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123 | #define NOINLINE attribute ((noinline)) |
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124 | |
101 | |
125 | #include "CoroAPI.h" |
102 | #include "CoroAPI.h" |
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103 | #define GCoroAPI (&coroapi) /* very sneaky */ |
126 | |
104 | |
127 | #ifdef USE_ITHREADS |
105 | #ifdef USE_ITHREADS |
128 | static perl_mutex coro_mutex; |
106 | # if CORO_PTHREAD |
129 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
107 | static void *coro_thx; |
130 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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131 | #else |
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132 | # define LOCK (void)0 |
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133 | # define UNLOCK (void)0 |
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134 | #endif |
108 | # endif |
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109 | #endif |
135 | |
110 | |
136 | #define strpair(const) const, sizeof (const) - 1 |
111 | #ifdef __linux |
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112 | # include <time.h> /* for timespec */ |
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113 | # include <syscall.h> /* for SYS_* */ |
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114 | # ifdef SYS_clock_gettime |
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115 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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116 | # define CORO_CLOCK_MONOTONIC 1 |
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117 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
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118 | # endif |
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119 | #endif |
137 | |
120 | |
138 | /* helper storage struct for Coro::AIO */ |
121 | static double (*nvtime)(); /* so why doesn't it take void? */ |
139 | struct io_state |
122 | static void (*u2time)(pTHX_ UV ret[2]); |
140 | { |
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141 | int errorno; |
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142 | I32 laststype; |
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143 | int laststatval; |
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144 | Stat_t statcache; |
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145 | }; |
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146 | |
123 | |
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124 | /* we hijack an hopefully unused CV flag for our purposes */ |
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125 | #define CVf_SLF 0x4000 |
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126 | static OP *pp_slf (pTHX); |
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127 | static void slf_destroy (pTHX_ struct coro *coro); |
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128 | |
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129 | static U32 cctx_gen; |
147 | static size_t coro_stacksize = CORO_STACKSIZE; |
130 | static size_t cctx_stacksize = CORO_STACKSIZE; |
148 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
149 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
150 | static JMPENV *main_top_env; |
133 | static JMPENV *main_top_env; |
151 | static HV *coro_state_stash, *coro_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
152 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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136 | |
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137 | static AV *av_destroy; /* destruction queue */ |
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138 | static SV *sv_manager; /* the manager coro */ |
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139 | static SV *sv_idle; /* $Coro::idle */ |
153 | |
140 | |
154 | static GV *irsgv; /* $/ */ |
141 | static GV *irsgv; /* $/ */ |
155 | static GV *stdoutgv; /* *STDOUT */ |
142 | static GV *stdoutgv; /* *STDOUT */ |
156 | |
143 | static SV *rv_diehook; |
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144 | static SV *rv_warnhook; |
157 | static HV *hv_sig; /* %SIG */ |
145 | static HV *hv_sig; /* %SIG */ |
158 | static SV *sv_diehook; |
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159 | static SV *sv_warnhook; |
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160 | |
146 | |
161 | /* async_pool helper stuff */ |
147 | /* async_pool helper stuff */ |
162 | static SV *sv_pool_rss; |
148 | static SV *sv_pool_rss; |
163 | static SV *sv_pool_size; |
149 | static SV *sv_pool_size; |
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150 | static SV *sv_async_pool_idle; /* description string */ |
164 | static AV *av_async_pool; |
151 | static AV *av_async_pool; /* idle pool */ |
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152 | static SV *sv_Coro; /* class string */ |
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153 | static CV *cv_pool_handler; |
165 | |
154 | |
166 | static struct coro_cctx *cctx_first[3]; /* index by GIMME_V type, void, scalar, array */ |
155 | /* Coro::AnyEvent */ |
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156 | static SV *sv_activity; |
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157 | |
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158 | /* enable processtime/realtime profiling */ |
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159 | static char enable_times; |
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160 | typedef U32 coro_ts[2]; |
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161 | static coro_ts time_real, time_cpu; |
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162 | static char times_valid; |
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163 | |
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164 | static struct coro_cctx *cctx_first; |
167 | static int cctx_count, cctx_idle[3]; |
165 | static int cctx_count, cctx_idle; |
168 | |
166 | |
169 | enum { |
167 | enum |
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168 | { |
170 | CC_MAPPED = 0x01, |
169 | CC_MAPPED = 0x01, |
171 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
170 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
172 | CC_TRACE = 0x04, |
171 | CC_TRACE = 0x04, |
173 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
172 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
174 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
173 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
175 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
174 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
176 | }; |
175 | }; |
177 | |
176 | |
178 | /* this is a structure representing a c-level coroutine */ |
177 | /* this is a structure representing a c-level coroutine */ |
179 | typedef struct coro_cctx { |
178 | typedef struct coro_cctx |
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179 | { |
180 | struct coro_cctx *next; |
180 | struct coro_cctx *next; |
181 | |
181 | |
182 | /* the stack */ |
182 | /* the stack */ |
183 | void *sptr; |
183 | struct coro_stack stack; |
184 | size_t ssize; |
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185 | |
184 | |
186 | /* cpu state */ |
185 | /* cpu state */ |
187 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
186 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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187 | #ifndef NDEBUG |
188 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
188 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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189 | #endif |
189 | JMPENV *top_env; |
190 | JMPENV *top_env; |
190 | coro_context cctx; |
191 | coro_context cctx; |
191 | |
192 | |
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193 | U32 gen; |
192 | #if CORO_USE_VALGRIND |
194 | #if CORO_USE_VALGRIND |
193 | int valgrind_id; |
195 | int valgrind_id; |
194 | #endif |
196 | #endif |
195 | unsigned char flags; |
197 | unsigned char flags; |
196 | } coro_cctx; |
198 | } coro_cctx; |
197 | |
199 | |
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200 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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201 | |
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202 | /*****************************************************************************/ |
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203 | |
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204 | static MGVTBL coro_state_vtbl; |
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205 | |
198 | enum { |
206 | enum |
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207 | { |
199 | CF_RUNNING = 0x0001, /* coroutine is running */ |
208 | CF_RUNNING = 0x0001, /* coroutine is running */ |
200 | CF_READY = 0x0002, /* coroutine is ready */ |
209 | CF_READY = 0x0002, /* coroutine is ready */ |
201 | CF_NEW = 0x0004, /* has never been switched to */ |
210 | CF_NEW = 0x0004, /* has never been switched to */ |
202 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
211 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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212 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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213 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
203 | }; |
214 | }; |
204 | |
215 | |
205 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
216 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
206 | typedef struct { |
217 | typedef struct |
207 | SV *defsv; |
218 | { |
208 | AV *defav; |
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209 | SV *errsv; |
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210 | SV *irsgv; |
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211 | #define VAR(name,type) type name; |
219 | #define VARx(name,expr,type) type name; |
212 | # include "state.h" |
220 | #include "state.h" |
213 | #undef VAR |
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214 | } perl_slots; |
221 | } perl_slots; |
215 | |
222 | |
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223 | /* how many context stack entries do we need for perl_slots */ |
216 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
224 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
217 | |
225 | |
218 | /* this is a structure representing a perl-level coroutine */ |
226 | /* this is a structure representing a perl-level coroutine */ |
219 | struct coro { |
227 | struct coro |
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228 | { |
220 | /* the c coroutine allocated to this perl coroutine, if any */ |
229 | /* the C coroutine allocated to this perl coroutine, if any */ |
221 | coro_cctx *cctx; |
230 | coro_cctx *cctx; |
222 | int gimme; |
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223 | |
231 | |
224 | /* process data */ |
232 | /* ready queue */ |
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233 | struct coro *next_ready; |
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234 | |
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235 | /* state data */ |
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236 | struct CoroSLF slf_frame; /* saved slf frame */ |
225 | AV *mainstack; |
237 | AV *mainstack; |
226 | perl_slots *slot; /* basically the saved sp */ |
238 | perl_slots *slot; /* basically the saved sp */ |
227 | |
239 | |
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240 | CV *startcv; /* the CV to execute */ |
228 | AV *args; /* data associated with this coroutine (initial args) */ |
241 | AV *args; /* data associated with this coroutine (initial args) */ |
229 | int refcnt; /* coroutines are refcounted, yes */ |
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230 | int flags; /* CF_ flags */ |
242 | int flags; /* CF_ flags */ |
231 | HV *hv; /* the perl hash associated with this coro, if any */ |
243 | HV *hv; /* the perl hash associated with this coro, if any */ |
232 | |
244 | |
233 | /* statistics */ |
245 | /* statistics */ |
234 | int usecount; /* number of transfers to this coro */ |
246 | int usecount; /* number of transfers to this coro */ |
235 | |
247 | |
236 | /* coro process data */ |
248 | /* coro process data */ |
237 | int prio; |
249 | int prio; |
238 | SV *throw; /* exception to be thrown */ |
250 | SV *except; /* exception to be thrown */ |
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251 | SV *rouse_cb; /* last rouse callback */ |
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252 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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253 | AV *status; /* the exit status list */ |
239 | |
254 | |
240 | /* async_pool */ |
255 | /* async_pool */ |
241 | SV *saved_deffh; |
256 | SV *saved_deffh; |
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257 | SV *invoke_cb; |
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258 | AV *invoke_av; |
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259 | |
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260 | /* on_enter/on_leave */ |
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261 | AV *on_enter; AV *on_enter_xs; |
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262 | AV *on_leave; AV *on_leave_xs; |
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263 | |
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264 | /* swap_sv */ |
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265 | AV *swap_sv; |
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266 | |
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267 | /* times */ |
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268 | coro_ts t_cpu, t_real; |
242 | |
269 | |
243 | /* linked list */ |
270 | /* linked list */ |
244 | struct coro *next, *prev; |
271 | struct coro *next, *prev; |
245 | }; |
272 | }; |
246 | |
273 | |
247 | typedef struct coro *Coro__State; |
274 | typedef struct coro *Coro__State; |
248 | typedef struct coro *Coro__State_or_hashref; |
275 | typedef struct coro *Coro__State_or_hashref; |
249 | |
276 | |
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277 | /* the following variables are effectively part of the perl context */ |
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278 | /* and get copied between struct coro and these variables */ |
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279 | /* the main reason we don't support windows process emulation */ |
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280 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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281 | |
250 | /** Coro ********************************************************************/ |
282 | /** Coro ********************************************************************/ |
251 | |
283 | |
252 | #define PRIO_MAX 3 |
284 | #define CORO_PRIO_MAX 3 |
253 | #define PRIO_HIGH 1 |
285 | #define CORO_PRIO_HIGH 1 |
254 | #define PRIO_NORMAL 0 |
286 | #define CORO_PRIO_NORMAL 0 |
255 | #define PRIO_LOW -1 |
287 | #define CORO_PRIO_LOW -1 |
256 | #define PRIO_IDLE -3 |
288 | #define CORO_PRIO_IDLE -3 |
257 | #define PRIO_MIN -4 |
289 | #define CORO_PRIO_MIN -4 |
258 | |
290 | |
259 | /* for Coro.pm */ |
291 | /* for Coro.pm */ |
260 | static SV *coro_current; |
292 | static SV *coro_current; |
261 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
293 | static SV *coro_readyhook; |
262 | static int coro_nready; |
294 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
|
|
295 | static CV *cv_coro_run; |
263 | static struct coro *coro_first; |
296 | static struct coro *coro_first; |
|
|
297 | #define coro_nready coroapi.nready |
|
|
298 | |
|
|
299 | /** JIT *********************************************************************/ |
|
|
300 | |
|
|
301 | #if CORO_JIT |
|
|
302 | /* APPLE doesn't have mmap though */ |
|
|
303 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
|
|
304 | #ifndef CORO_JIT_TYPE |
|
|
305 | #if ECB_AMD64 && CORO_JIT_UNIXY |
|
|
306 | #define CORO_JIT_TYPE "amd64-unix" |
|
|
307 | #elif __i386 && CORO_JIT_UNIXY |
|
|
308 | #define CORO_JIT_TYPE "x86-unix" |
|
|
309 | #endif |
|
|
310 | #endif |
|
|
311 | #endif |
|
|
312 | |
|
|
313 | #if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0 |
|
|
314 | #undef CORO_JIT |
|
|
315 | #endif |
|
|
316 | |
|
|
317 | #if CORO_JIT |
|
|
318 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
|
|
319 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
|
|
320 | #endif |
|
|
321 | |
|
|
322 | /** Coro::Select ************************************************************/ |
|
|
323 | |
|
|
324 | static OP *(*coro_old_pp_sselect) (pTHX); |
|
|
325 | static SV *coro_select_select; |
|
|
326 | |
|
|
327 | /* horrible hack, but if it works... */ |
|
|
328 | static OP * |
|
|
329 | coro_pp_sselect (pTHX) |
|
|
330 | { |
|
|
331 | dSP; |
|
|
332 | PUSHMARK (SP - 4); /* fake argument list */ |
|
|
333 | XPUSHs (coro_select_select); |
|
|
334 | PUTBACK; |
|
|
335 | |
|
|
336 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
|
|
337 | PL_op->op_flags |= OPf_STACKED; |
|
|
338 | PL_op->op_private = 0; |
|
|
339 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
|
340 | } |
|
|
341 | |
|
|
342 | /** time stuff **************************************************************/ |
|
|
343 | |
|
|
344 | #ifdef HAS_GETTIMEOFDAY |
|
|
345 | |
|
|
346 | ecb_inline void |
|
|
347 | coro_u2time (pTHX_ UV ret[2]) |
|
|
348 | { |
|
|
349 | struct timeval tv; |
|
|
350 | gettimeofday (&tv, 0); |
|
|
351 | |
|
|
352 | ret [0] = tv.tv_sec; |
|
|
353 | ret [1] = tv.tv_usec; |
|
|
354 | } |
|
|
355 | |
|
|
356 | ecb_inline double |
|
|
357 | coro_nvtime (void) |
|
|
358 | { |
|
|
359 | struct timeval tv; |
|
|
360 | gettimeofday (&tv, 0); |
|
|
361 | |
|
|
362 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
363 | } |
|
|
364 | |
|
|
365 | ecb_inline void |
|
|
366 | time_init (pTHX) |
|
|
367 | { |
|
|
368 | nvtime = coro_nvtime; |
|
|
369 | u2time = coro_u2time; |
|
|
370 | } |
|
|
371 | |
|
|
372 | #else |
|
|
373 | |
|
|
374 | ecb_inline void |
|
|
375 | time_init (pTHX) |
|
|
376 | { |
|
|
377 | SV **svp; |
|
|
378 | |
|
|
379 | require_pv ("Time/HiRes.pm"); |
|
|
380 | |
|
|
381 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
382 | |
|
|
383 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
384 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
385 | |
|
|
386 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
387 | |
|
|
388 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
389 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
390 | } |
|
|
391 | |
|
|
392 | #endif |
264 | |
393 | |
265 | /** lowlevel stuff **********************************************************/ |
394 | /** lowlevel stuff **********************************************************/ |
266 | |
395 | |
267 | static SV * |
396 | static SV * ecb_noinline |
268 | coro_get_sv (const char *name, int create) |
397 | coro_get_sv (pTHX_ const char *name, int create) |
269 | { |
398 | { |
270 | #if PERL_VERSION_ATLEAST (5,9,0) |
399 | #if PERL_VERSION_ATLEAST (5,10,0) |
271 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
400 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
272 | get_sv (name, create); |
401 | get_sv (name, create); |
273 | #endif |
402 | #endif |
274 | return get_sv (name, create); |
403 | return get_sv (name, create); |
275 | } |
404 | } |
276 | |
405 | |
277 | static AV * |
406 | static AV * ecb_noinline |
278 | coro_get_av (const char *name, int create) |
407 | coro_get_av (pTHX_ const char *name, int create) |
279 | { |
408 | { |
280 | #if PERL_VERSION_ATLEAST (5,9,0) |
409 | #if PERL_VERSION_ATLEAST (5,10,0) |
281 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
410 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
282 | get_av (name, create); |
411 | get_av (name, create); |
283 | #endif |
412 | #endif |
284 | return get_av (name, create); |
413 | return get_av (name, create); |
285 | } |
414 | } |
286 | |
415 | |
287 | static HV * |
416 | static HV * ecb_noinline |
288 | coro_get_hv (const char *name, int create) |
417 | coro_get_hv (pTHX_ const char *name, int create) |
289 | { |
418 | { |
290 | #if PERL_VERSION_ATLEAST (5,9,0) |
419 | #if PERL_VERSION_ATLEAST (5,10,0) |
291 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
420 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
292 | get_hv (name, create); |
421 | get_hv (name, create); |
293 | #endif |
422 | #endif |
294 | return get_hv (name, create); |
423 | return get_hv (name, create); |
295 | } |
424 | } |
296 | |
425 | |
297 | static AV * |
426 | ecb_inline void |
|
|
427 | coro_times_update (void) |
|
|
428 | { |
|
|
429 | #ifdef coro_clock_gettime |
|
|
430 | struct timespec ts; |
|
|
431 | |
|
|
432 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
433 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
434 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
435 | |
|
|
436 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
437 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
438 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
439 | #else |
|
|
440 | dTHX; |
|
|
441 | UV tv[2]; |
|
|
442 | |
|
|
443 | u2time (aTHX_ tv); |
|
|
444 | time_real [0] = tv [0]; |
|
|
445 | time_real [1] = tv [1] * 1000; |
|
|
446 | #endif |
|
|
447 | } |
|
|
448 | |
|
|
449 | ecb_inline void |
|
|
450 | coro_times_add (struct coro *c) |
|
|
451 | { |
|
|
452 | c->t_real [1] += time_real [1]; |
|
|
453 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
454 | c->t_real [0] += time_real [0]; |
|
|
455 | |
|
|
456 | c->t_cpu [1] += time_cpu [1]; |
|
|
457 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
458 | c->t_cpu [0] += time_cpu [0]; |
|
|
459 | } |
|
|
460 | |
|
|
461 | ecb_inline void |
|
|
462 | coro_times_sub (struct coro *c) |
|
|
463 | { |
|
|
464 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
465 | c->t_real [1] -= time_real [1]; |
|
|
466 | c->t_real [0] -= time_real [0]; |
|
|
467 | |
|
|
468 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
469 | c->t_cpu [1] -= time_cpu [1]; |
|
|
470 | c->t_cpu [0] -= time_cpu [0]; |
|
|
471 | } |
|
|
472 | |
|
|
473 | /*****************************************************************************/ |
|
|
474 | /* magic glue */ |
|
|
475 | |
|
|
476 | #define CORO_MAGIC_type_cv 26 |
|
|
477 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
478 | |
|
|
479 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
480 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
481 | ? SvMAGIC (sv) \ |
|
|
482 | : mg_find (sv, type)) |
|
|
483 | |
|
|
484 | #define CORO_MAGIC(sv, type) \ |
|
|
485 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
486 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
487 | : 0) |
|
|
488 | |
|
|
489 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
490 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
491 | |
|
|
492 | ecb_inline MAGIC * |
|
|
493 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
494 | { |
|
|
495 | MAGIC *mg; |
|
|
496 | |
|
|
497 | if (ecb_expect_true ( |
|
|
498 | SvTYPE (coro) == SVt_PVHV |
|
|
499 | && (mg = CORO_MAGIC_state (coro)) |
|
|
500 | && mg->mg_virtual == &coro_state_vtbl |
|
|
501 | )) |
|
|
502 | return mg; |
|
|
503 | |
|
|
504 | return 0; |
|
|
505 | } |
|
|
506 | |
|
|
507 | ecb_inline struct coro * |
|
|
508 | SvSTATE_ (pTHX_ SV *coro_sv) |
|
|
509 | { |
|
|
510 | MAGIC *mg; |
|
|
511 | |
|
|
512 | if (SvROK (coro_sv)) |
|
|
513 | coro_sv = SvRV (coro_sv); |
|
|
514 | |
|
|
515 | mg = SvSTATEhv_p (aTHX_ coro_sv); |
|
|
516 | if (!mg) |
|
|
517 | croak ("Coro::State object required"); |
|
|
518 | |
|
|
519 | return (struct coro *)mg->mg_ptr; |
|
|
520 | } |
|
|
521 | |
|
|
522 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
523 | |
|
|
524 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
525 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
526 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
527 | |
|
|
528 | /*****************************************************************************/ |
|
|
529 | /* padlist management and caching */ |
|
|
530 | |
|
|
531 | ecb_inline PADLIST * |
298 | coro_clone_padlist (pTHX_ CV *cv) |
532 | coro_derive_padlist (pTHX_ CV *cv) |
299 | { |
533 | { |
300 | AV *padlist = CvPADLIST (cv); |
534 | PADLIST *padlist = CvPADLIST (cv); |
301 | AV *newpadlist, *newpad; |
535 | PADLIST *newpadlist; |
|
|
536 | PADNAMELIST *padnames; |
|
|
537 | PAD *newpad; |
|
|
538 | PADOFFSET off = PadlistMAX (padlist) + 1; |
302 | |
539 | |
303 | newpadlist = newAV (); |
540 | #if NEWPADAPI |
|
|
541 | |
|
|
542 | /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */ |
|
|
543 | /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */ |
|
|
544 | while (!PadlistARRAY (padlist)[off - 1]) |
|
|
545 | --off; |
|
|
546 | |
|
|
547 | Perl_pad_push (aTHX_ padlist, off); |
|
|
548 | |
|
|
549 | newpad = PadlistARRAY (padlist)[off]; |
|
|
550 | PadlistARRAY (padlist)[off] = 0; |
|
|
551 | |
|
|
552 | #else |
|
|
553 | |
|
|
554 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
555 | Perl_pad_push (aTHX_ padlist, off); |
|
|
556 | #else |
|
|
557 | Perl_pad_push (aTHX_ padlist, off, 1); |
|
|
558 | #endif |
|
|
559 | |
|
|
560 | newpad = PadlistARRAY (padlist)[off]; |
|
|
561 | PadlistMAX (padlist) = off - 1; |
|
|
562 | |
|
|
563 | #endif |
|
|
564 | |
|
|
565 | newPADLIST (newpadlist); |
|
|
566 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
|
567 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
304 | AvREAL_off (newpadlist); |
568 | AvREAL_off (newpadlist); |
305 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
306 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
307 | #else |
|
|
308 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
309 | #endif |
569 | #endif |
310 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
311 | --AvFILLp (padlist); |
|
|
312 | |
570 | |
313 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
571 | /* Already extended to 2 elements by newPADLIST. */ |
314 | av_store (newpadlist, 1, (SV *)newpad); |
572 | PadlistMAX (newpadlist) = 1; |
|
|
573 | |
|
|
574 | padnames = PadlistNAMES (padlist); |
|
|
575 | ++PadnamelistREFCNT (padnames); |
|
|
576 | PadlistNAMES (newpadlist) = padnames; |
|
|
577 | |
|
|
578 | PadlistARRAY (newpadlist)[1] = newpad; |
315 | |
579 | |
316 | return newpadlist; |
580 | return newpadlist; |
317 | } |
581 | } |
318 | |
582 | |
319 | static void |
583 | ecb_inline void |
320 | free_padlist (pTHX_ AV *padlist) |
584 | free_padlist (pTHX_ PADLIST *padlist) |
321 | { |
585 | { |
322 | /* may be during global destruction */ |
586 | /* may be during global destruction */ |
323 | if (SvREFCNT (padlist)) |
587 | if (!IN_DESTRUCT) |
324 | { |
588 | { |
325 | I32 i = AvFILLp (padlist); |
589 | I32 i = PadlistMAX (padlist); |
326 | while (i >= 0) |
590 | |
|
|
591 | while (i > 0) /* special-case index 0 */ |
327 | { |
592 | { |
328 | SV **svp = av_fetch (padlist, i--, FALSE); |
593 | /* we try to be extra-careful here */ |
|
|
594 | PAD *pad = PadlistARRAY (padlist)[i--]; |
|
|
595 | |
329 | if (svp) |
596 | if (pad) |
330 | { |
597 | { |
331 | SV *sv; |
598 | I32 j = PadMAX (pad); |
332 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
599 | |
|
|
600 | while (j >= 0) |
333 | SvREFCNT_dec (sv); |
601 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
334 | |
602 | |
|
|
603 | PadMAX (pad) = -1; |
335 | SvREFCNT_dec (*svp); |
604 | SvREFCNT_dec (pad); |
336 | } |
605 | } |
337 | } |
606 | } |
338 | |
607 | |
|
|
608 | PadnamelistREFCNT_dec (PadlistNAMES (padlist)); |
|
|
609 | |
|
|
610 | #if NEWPADAPI |
|
|
611 | Safefree (PadlistARRAY (padlist)); |
|
|
612 | Safefree (padlist); |
|
|
613 | #else |
|
|
614 | AvFILLp (padlist) = -1; |
|
|
615 | AvREAL_off (padlist); |
339 | SvREFCNT_dec ((SV*)padlist); |
616 | SvREFCNT_dec ((SV*)padlist); |
|
|
617 | #endif |
340 | } |
618 | } |
341 | } |
619 | } |
342 | |
620 | |
343 | static int |
621 | static int |
344 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
622 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
345 | { |
623 | { |
346 | AV *padlist; |
624 | PADLIST *padlist; |
347 | AV *av = (AV *)mg->mg_obj; |
625 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
626 | size_t len = *(size_t *)mg->mg_ptr; |
348 | |
627 | |
349 | /* casting is fun. */ |
628 | /* perl manages to free our internal AV and _then_ call us */ |
350 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
629 | if (IN_DESTRUCT) |
|
|
630 | return 0; |
|
|
631 | |
|
|
632 | while (len--) |
351 | free_padlist (aTHX_ padlist); |
633 | free_padlist (aTHX_ padlists[len]); |
352 | |
|
|
353 | SvREFCNT_dec (av); |
|
|
354 | |
634 | |
355 | return 0; |
635 | return 0; |
356 | } |
636 | } |
357 | |
637 | |
358 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
638 | static MGVTBL coro_cv_vtbl = { |
359 | |
639 | 0, 0, 0, 0, |
360 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
640 | coro_cv_free |
361 | |
641 | }; |
362 | #define CORO_MAGIC(cv) \ |
|
|
363 | SvMAGIC (cv) \ |
|
|
364 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
365 | ? SvMAGIC (cv) \ |
|
|
366 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
367 | : 0 |
|
|
368 | |
|
|
369 | static struct coro * |
|
|
370 | SvSTATE_ (pTHX_ SV *coro) |
|
|
371 | { |
|
|
372 | HV *stash; |
|
|
373 | MAGIC *mg; |
|
|
374 | |
|
|
375 | if (SvROK (coro)) |
|
|
376 | coro = SvRV (coro); |
|
|
377 | |
|
|
378 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
379 | croak ("Coro::State object required"); |
|
|
380 | |
|
|
381 | stash = SvSTASH (coro); |
|
|
382 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
383 | { |
|
|
384 | /* very slow, but rare, check */ |
|
|
385 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
386 | croak ("Coro::State object required"); |
|
|
387 | } |
|
|
388 | |
|
|
389 | mg = CORO_MAGIC (coro); |
|
|
390 | return (struct coro *)mg->mg_ptr; |
|
|
391 | } |
|
|
392 | |
|
|
393 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
394 | |
642 | |
395 | /* the next two functions merely cache the padlists */ |
643 | /* the next two functions merely cache the padlists */ |
396 | static void |
644 | ecb_inline void |
397 | get_padlist (pTHX_ CV *cv) |
645 | get_padlist (pTHX_ CV *cv) |
398 | { |
646 | { |
399 | MAGIC *mg = CORO_MAGIC (cv); |
647 | MAGIC *mg = CORO_MAGIC_cv (cv); |
400 | AV *av; |
648 | size_t *lenp; |
401 | |
649 | |
402 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
650 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
403 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
651 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
404 | else |
652 | else |
405 | { |
653 | { |
406 | #if CORO_PREFER_PERL_FUNCTIONS |
654 | #if CORO_PREFER_PERL_FUNCTIONS |
407 | /* this is probably cleaner, but also slower? */ |
655 | /* this is probably cleaner? but also slower! */ |
|
|
656 | /* in practise, it seems to be less stable */ |
408 | CV *cp = Perl_cv_clone (cv); |
657 | CV *cp = Perl_cv_clone (aTHX_ cv); |
409 | CvPADLIST (cv) = CvPADLIST (cp); |
658 | CvPADLIST (cv) = CvPADLIST (cp); |
410 | CvPADLIST (cp) = 0; |
659 | CvPADLIST (cp) = 0; |
411 | SvREFCNT_dec (cp); |
660 | SvREFCNT_dec (cp); |
412 | #else |
661 | #else |
413 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
662 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
414 | #endif |
663 | #endif |
415 | } |
664 | } |
416 | } |
665 | } |
417 | |
666 | |
418 | static void |
667 | ecb_inline void |
419 | put_padlist (pTHX_ CV *cv) |
668 | put_padlist (pTHX_ CV *cv) |
420 | { |
669 | { |
421 | MAGIC *mg = CORO_MAGIC (cv); |
670 | MAGIC *mg = CORO_MAGIC_cv (cv); |
422 | AV *av; |
|
|
423 | |
671 | |
424 | if (expect_false (!mg)) |
672 | if (ecb_expect_false (!mg)) |
425 | { |
|
|
426 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
427 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
428 | mg->mg_virtual = &vtbl_coro; |
|
|
429 | mg->mg_obj = (SV *)newAV (); |
|
|
430 | } |
673 | { |
|
|
674 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
675 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
676 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
677 | } |
|
|
678 | else |
|
|
679 | Renew (mg->mg_ptr, |
|
|
680 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
681 | char); |
431 | |
682 | |
432 | av = (AV *)mg->mg_obj; |
683 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
433 | |
|
|
434 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
|
|
435 | av_extend (av, AvMAX (av) + 1); |
|
|
436 | |
|
|
437 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
438 | } |
684 | } |
439 | |
685 | |
440 | /** load & save, init *******************************************************/ |
686 | /** load & save, init *******************************************************/ |
|
|
687 | |
|
|
688 | ecb_inline void |
|
|
689 | swap_sv (SV *a, SV *b) |
|
|
690 | { |
|
|
691 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
692 | SV tmp; |
|
|
693 | |
|
|
694 | /* swap sv_any */ |
|
|
695 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
696 | |
|
|
697 | /* swap sv_flags */ |
|
|
698 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
699 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
700 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
701 | |
|
|
702 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
703 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
704 | * is much faster, so no quarrels here. alternatively, we could |
|
|
705 | * sv_upgrade to avoid this. |
|
|
706 | */ |
|
|
707 | { |
|
|
708 | /* swap sv_u */ |
|
|
709 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
710 | |
|
|
711 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
712 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
713 | */ |
|
|
714 | #define svany_in_head(type) \ |
|
|
715 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
716 | |
|
|
717 | if (svany_in_head (SvTYPE (a))) |
|
|
718 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
719 | |
|
|
720 | if (svany_in_head (SvTYPE (b))) |
|
|
721 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
722 | } |
|
|
723 | #endif |
|
|
724 | } |
|
|
725 | |
|
|
726 | /* swap sv heads, at least logically */ |
|
|
727 | static void |
|
|
728 | swap_svs (pTHX_ Coro__State c) |
|
|
729 | { |
|
|
730 | int i; |
|
|
731 | |
|
|
732 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
733 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
734 | } |
|
|
735 | |
|
|
736 | #define SWAP_SVS(coro) \ |
|
|
737 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
738 | swap_svs (aTHX_ (coro)) |
|
|
739 | |
|
|
740 | static void |
|
|
741 | on_enterleave_call (pTHX_ SV *cb); |
441 | |
742 | |
442 | static void |
743 | static void |
443 | load_perl (pTHX_ Coro__State c) |
744 | load_perl (pTHX_ Coro__State c) |
444 | { |
745 | { |
445 | perl_slots *slot = c->slot; |
746 | perl_slots *slot = c->slot; |
446 | c->slot = 0; |
747 | c->slot = 0; |
447 | |
748 | |
448 | PL_mainstack = c->mainstack; |
749 | PL_mainstack = c->mainstack; |
449 | |
750 | |
450 | GvSV (PL_defgv) = slot->defsv; |
751 | #if CORO_JIT |
451 | GvAV (PL_defgv) = slot->defav; |
752 | load_perl_slots (slot); |
452 | GvSV (PL_errgv) = slot->errsv; |
753 | #else |
453 | GvSV (irsgv) = slot->irsgv; |
|
|
454 | |
|
|
455 | #define VAR(name,type) PL_ ## name = slot->name; |
754 | #define VARx(name,expr,type) expr = slot->name; |
456 | # include "state.h" |
755 | #include "state.h" |
457 | #undef VAR |
756 | #endif |
458 | |
|
|
459 | /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/ |
|
|
460 | /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/ |
|
|
461 | |
757 | |
462 | { |
758 | { |
463 | dSP; |
759 | dSP; |
464 | |
760 | |
465 | CV *cv; |
761 | CV *cv; |
466 | |
762 | |
467 | /* now do the ugly restore mess */ |
763 | /* now do the ugly restore mess */ |
468 | while (expect_true (cv = (CV *)POPs)) |
764 | while (ecb_expect_true (cv = (CV *)POPs)) |
469 | { |
765 | { |
470 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
766 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
471 | CvDEPTH (cv) = PTR2IV (POPs); |
767 | CvDEPTH (cv) = PTR2IV (POPs); |
472 | CvPADLIST (cv) = (AV *)POPs; |
768 | CvPADLIST (cv) = (PADLIST *)POPs; |
473 | } |
769 | } |
474 | |
770 | |
475 | PUTBACK; |
771 | PUTBACK; |
476 | } |
772 | } |
|
|
773 | |
|
|
774 | slf_frame = c->slf_frame; |
|
|
775 | CORO_THROW = c->except; |
|
|
776 | |
|
|
777 | if (ecb_expect_false (enable_times)) |
|
|
778 | { |
|
|
779 | if (ecb_expect_false (!times_valid)) |
|
|
780 | coro_times_update (); |
|
|
781 | |
|
|
782 | coro_times_sub (c); |
|
|
783 | } |
|
|
784 | |
|
|
785 | if (ecb_expect_false (c->on_enter)) |
|
|
786 | { |
|
|
787 | int i; |
|
|
788 | |
|
|
789 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
790 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
791 | } |
|
|
792 | |
|
|
793 | if (ecb_expect_false (c->on_enter_xs)) |
|
|
794 | { |
|
|
795 | int i; |
|
|
796 | |
|
|
797 | for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2) |
|
|
798 | ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]); |
|
|
799 | } |
|
|
800 | |
|
|
801 | SWAP_SVS (c); |
477 | } |
802 | } |
478 | |
803 | |
479 | static void |
804 | static void |
480 | save_perl (pTHX_ Coro__State c) |
805 | save_perl (pTHX_ Coro__State c) |
481 | { |
806 | { |
|
|
807 | SWAP_SVS (c); |
|
|
808 | |
|
|
809 | if (ecb_expect_false (c->on_leave_xs)) |
|
|
810 | { |
|
|
811 | int i; |
|
|
812 | |
|
|
813 | for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2) |
|
|
814 | ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]); |
|
|
815 | } |
|
|
816 | |
|
|
817 | if (ecb_expect_false (c->on_leave)) |
|
|
818 | { |
|
|
819 | int i; |
|
|
820 | |
|
|
821 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
822 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
823 | } |
|
|
824 | |
|
|
825 | times_valid = 0; |
|
|
826 | |
|
|
827 | if (ecb_expect_false (enable_times)) |
|
|
828 | { |
|
|
829 | coro_times_update (); times_valid = 1; |
|
|
830 | coro_times_add (c); |
|
|
831 | } |
|
|
832 | |
|
|
833 | c->except = CORO_THROW; |
|
|
834 | c->slf_frame = slf_frame; |
|
|
835 | |
482 | { |
836 | { |
483 | dSP; |
837 | dSP; |
484 | I32 cxix = cxstack_ix; |
838 | I32 cxix = cxstack_ix; |
485 | PERL_CONTEXT *ccstk = cxstack; |
839 | PERL_CONTEXT *ccstk = cxstack; |
486 | PERL_SI *top_si = PL_curstackinfo; |
840 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
492 | |
846 | |
493 | XPUSHs (Nullsv); |
847 | XPUSHs (Nullsv); |
494 | /* this loop was inspired by pp_caller */ |
848 | /* this loop was inspired by pp_caller */ |
495 | for (;;) |
849 | for (;;) |
496 | { |
850 | { |
497 | while (expect_true (cxix >= 0)) |
851 | while (ecb_expect_true (cxix >= 0)) |
498 | { |
852 | { |
499 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
853 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
500 | |
854 | |
501 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
855 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
502 | { |
856 | { |
503 | CV *cv = cx->blk_sub.cv; |
857 | CV *cv = cx->blk_sub.cv; |
504 | |
858 | |
505 | if (expect_true (CvDEPTH (cv))) |
859 | if (ecb_expect_true (CvDEPTH (cv))) |
506 | { |
860 | { |
507 | EXTEND (SP, 3); |
861 | EXTEND (SP, 3); |
508 | PUSHs ((SV *)CvPADLIST (cv)); |
862 | PUSHs ((SV *)CvPADLIST (cv)); |
509 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
863 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
510 | PUSHs ((SV *)cv); |
864 | PUSHs ((SV *)cv); |
511 | |
865 | |
512 | CvDEPTH (cv) = 0; |
866 | CvDEPTH (cv) = 0; |
513 | get_padlist (aTHX_ cv); |
867 | get_padlist (aTHX_ cv); |
514 | } |
868 | } |
515 | } |
869 | } |
516 | } |
870 | } |
517 | |
871 | |
518 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
872 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
519 | break; |
873 | break; |
520 | |
874 | |
521 | top_si = top_si->si_prev; |
875 | top_si = top_si->si_prev; |
522 | ccstk = top_si->si_cxstack; |
876 | ccstk = top_si->si_cxstack; |
523 | cxix = top_si->si_cxix; |
877 | cxix = top_si->si_cxix; |
… | |
… | |
525 | |
879 | |
526 | PUTBACK; |
880 | PUTBACK; |
527 | } |
881 | } |
528 | |
882 | |
529 | /* allocate some space on the context stack for our purposes */ |
883 | /* allocate some space on the context stack for our purposes */ |
530 | /* we manually unroll here, as usually 2 slots is enough */ |
884 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
531 | if (SLOT_COUNT >= 1) CXINC; |
|
|
532 | if (SLOT_COUNT >= 2) CXINC; |
|
|
533 | if (SLOT_COUNT >= 3) CXINC; |
|
|
534 | { |
885 | { |
535 | int i; |
886 | unsigned int i; |
|
|
887 | |
536 | for (i = 3; i < SLOT_COUNT; ++i) |
888 | for (i = 0; i < SLOT_COUNT; ++i) |
537 | CXINC; |
889 | CXINC; |
538 | } |
890 | |
539 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
891 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
892 | } |
540 | |
893 | |
541 | c->mainstack = PL_mainstack; |
894 | c->mainstack = PL_mainstack; |
542 | |
895 | |
543 | { |
896 | { |
544 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
897 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
545 | |
898 | |
546 | slot->defav = GvAV (PL_defgv); |
899 | #if CORO_JIT |
547 | slot->defsv = DEFSV; |
900 | save_perl_slots (slot); |
548 | slot->errsv = ERRSV; |
901 | #else |
549 | slot->irsgv = GvSV (irsgv); |
|
|
550 | |
|
|
551 | #define VAR(name,type) slot->name = PL_ ## name; |
902 | #define VARx(name,expr,type) slot->name = expr; |
552 | # include "state.h" |
903 | #include "state.h" |
553 | #undef VAR |
904 | #endif |
554 | } |
905 | } |
555 | } |
906 | } |
556 | |
907 | |
557 | /* |
908 | /* |
558 | * allocate various perl stacks. This is an exact copy |
909 | * allocate various perl stacks. This is almost an exact copy |
559 | * of perl.c:init_stacks, except that it uses less memory |
910 | * of perl.c:init_stacks, except that it uses less memory |
560 | * on the (sometimes correct) assumption that coroutines do |
911 | * on the (sometimes correct) assumption that coroutines do |
561 | * not usually need a lot of stackspace. |
912 | * not usually need a lot of stackspace. |
562 | */ |
913 | */ |
563 | #if CORO_PREFER_PERL_FUNCTIONS |
914 | #if CORO_PREFER_PERL_FUNCTIONS |
564 | # define coro_init_stacks init_stacks |
915 | # define coro_init_stacks(thx) init_stacks () |
565 | #else |
916 | #else |
566 | static void |
917 | static void |
567 | coro_init_stacks (pTHX) |
918 | coro_init_stacks (pTHX) |
568 | { |
919 | { |
569 | PL_curstackinfo = new_stackinfo(32, 8); |
920 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
570 | PL_curstackinfo->si_type = PERLSI_MAIN; |
921 | PL_curstackinfo->si_type = PERLSI_MAIN; |
571 | PL_curstack = PL_curstackinfo->si_stack; |
922 | PL_curstack = PL_curstackinfo->si_stack; |
572 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
923 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
573 | |
924 | |
574 | PL_stack_base = AvARRAY(PL_curstack); |
925 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
589 | #endif |
940 | #endif |
590 | |
941 | |
591 | New(54,PL_scopestack,8,I32); |
942 | New(54,PL_scopestack,8,I32); |
592 | PL_scopestack_ix = 0; |
943 | PL_scopestack_ix = 0; |
593 | PL_scopestack_max = 8; |
944 | PL_scopestack_max = 8; |
|
|
945 | #if HAS_SCOPESTACK_NAME |
|
|
946 | New(54,PL_scopestack_name,8,const char*); |
|
|
947 | #endif |
594 | |
948 | |
595 | New(54,PL_savestack,24,ANY); |
949 | New(54,PL_savestack,24,ANY); |
596 | PL_savestack_ix = 0; |
950 | PL_savestack_ix = 0; |
597 | PL_savestack_max = 24; |
951 | PL_savestack_max = 24; |
598 | |
952 | |
599 | #if !PERL_VERSION_ATLEAST (5,9,0) |
953 | #if !PERL_VERSION_ATLEAST (5,10,0) |
600 | New(54,PL_retstack,4,OP*); |
954 | New(54,PL_retstack,4,OP*); |
601 | PL_retstack_ix = 0; |
955 | PL_retstack_ix = 0; |
602 | PL_retstack_max = 4; |
956 | PL_retstack_max = 4; |
603 | #endif |
957 | #endif |
604 | } |
958 | } |
… | |
… | |
606 | |
960 | |
607 | /* |
961 | /* |
608 | * destroy the stacks, the callchain etc... |
962 | * destroy the stacks, the callchain etc... |
609 | */ |
963 | */ |
610 | static void |
964 | static void |
611 | coro_destroy_stacks (pTHX) |
965 | coro_destruct_stacks (pTHX) |
612 | { |
966 | { |
613 | while (PL_curstackinfo->si_next) |
967 | while (PL_curstackinfo->si_next) |
614 | PL_curstackinfo = PL_curstackinfo->si_next; |
968 | PL_curstackinfo = PL_curstackinfo->si_next; |
615 | |
969 | |
616 | while (PL_curstackinfo) |
970 | while (PL_curstackinfo) |
… | |
… | |
626 | } |
980 | } |
627 | |
981 | |
628 | Safefree (PL_tmps_stack); |
982 | Safefree (PL_tmps_stack); |
629 | Safefree (PL_markstack); |
983 | Safefree (PL_markstack); |
630 | Safefree (PL_scopestack); |
984 | Safefree (PL_scopestack); |
|
|
985 | #if HAS_SCOPESTACK_NAME |
|
|
986 | Safefree (PL_scopestack_name); |
|
|
987 | #endif |
631 | Safefree (PL_savestack); |
988 | Safefree (PL_savestack); |
632 | #if !PERL_VERSION_ATLEAST (5,9,0) |
989 | #if !PERL_VERSION_ATLEAST (5,10,0) |
633 | Safefree (PL_retstack); |
990 | Safefree (PL_retstack); |
634 | #endif |
991 | #endif |
635 | } |
992 | } |
|
|
993 | |
|
|
994 | #define CORO_RSS \ |
|
|
995 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
996 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
997 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
998 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
999 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
1000 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
1001 | rss += SYM (savestack_max) * sizeof (ANY); |
636 | |
1002 | |
637 | static size_t |
1003 | static size_t |
638 | coro_rss (pTHX_ struct coro *coro) |
1004 | coro_rss (pTHX_ struct coro *coro) |
639 | { |
1005 | { |
640 | size_t rss = sizeof (*coro); |
1006 | size_t rss = sizeof (*coro); |
641 | |
1007 | |
642 | if (coro->mainstack) |
1008 | if (coro->mainstack) |
643 | { |
1009 | { |
644 | perl_slots tmp_slot; |
|
|
645 | perl_slots *slot; |
|
|
646 | |
|
|
647 | if (coro->flags & CF_RUNNING) |
1010 | if (coro->flags & CF_RUNNING) |
648 | { |
1011 | { |
649 | slot = &tmp_slot; |
1012 | #define SYM(sym) PL_ ## sym |
650 | |
1013 | CORO_RSS; |
651 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
652 | # include "state.h" |
|
|
653 | #undef VAR |
1014 | #undef SYM |
654 | } |
1015 | } |
655 | else |
1016 | else |
656 | slot = coro->slot; |
1017 | { |
657 | |
1018 | #define SYM(sym) coro->slot->sym |
658 | rss += sizeof (slot->curstackinfo); |
1019 | CORO_RSS; |
659 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
1020 | #undef SYM |
660 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
1021 | } |
661 | rss += slot->tmps_max * sizeof (SV *); |
|
|
662 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
663 | rss += slot->scopestack_max * sizeof (I32); |
|
|
664 | rss += slot->savestack_max * sizeof (ANY); |
|
|
665 | |
|
|
666 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
667 | rss += slot->retstack_max * sizeof (OP *); |
|
|
668 | #endif |
|
|
669 | } |
1022 | } |
670 | |
1023 | |
671 | return rss; |
1024 | return rss; |
672 | } |
1025 | } |
673 | |
1026 | |
674 | /** coroutine stack handling ************************************************/ |
1027 | /** coroutine stack handling ************************************************/ |
675 | |
1028 | |
|
|
1029 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1030 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1031 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1032 | |
|
|
1033 | /* apparently < 5.8.8 */ |
|
|
1034 | #ifndef MgPV_nolen_const |
|
|
1035 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
1036 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
1037 | (const char*)(mg)->mg_ptr) |
|
|
1038 | #endif |
|
|
1039 | |
|
|
1040 | /* |
|
|
1041 | * This overrides the default magic get method of %SIG elements. |
|
|
1042 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
1043 | * and instead of trying to save and restore the hash elements (extremely slow), |
|
|
1044 | * we just provide our own readback here. |
|
|
1045 | */ |
|
|
1046 | static int ecb_cold |
|
|
1047 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
1048 | { |
|
|
1049 | const char *s = MgPV_nolen_const (mg); |
|
|
1050 | |
|
|
1051 | if (*s == '_') |
|
|
1052 | { |
|
|
1053 | SV **svp = 0; |
|
|
1054 | |
|
|
1055 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1056 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1057 | |
|
|
1058 | if (svp) |
|
|
1059 | { |
|
|
1060 | SV *ssv; |
|
|
1061 | |
|
|
1062 | if (!*svp) |
|
|
1063 | ssv = &PL_sv_undef; |
|
|
1064 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1065 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1066 | else |
|
|
1067 | ssv = *svp; |
|
|
1068 | |
|
|
1069 | sv_setsv (sv, ssv); |
|
|
1070 | return 0; |
|
|
1071 | } |
|
|
1072 | } |
|
|
1073 | |
|
|
1074 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | static int ecb_cold |
|
|
1078 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
1079 | { |
|
|
1080 | const char *s = MgPV_nolen_const (mg); |
|
|
1081 | |
|
|
1082 | if (*s == '_') |
|
|
1083 | { |
|
|
1084 | SV **svp = 0; |
|
|
1085 | |
|
|
1086 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1087 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1088 | |
|
|
1089 | if (svp) |
|
|
1090 | { |
|
|
1091 | SV *old = *svp; |
|
|
1092 | *svp = 0; |
|
|
1093 | SvREFCNT_dec (old); |
|
|
1094 | return 0; |
|
|
1095 | } |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | static int ecb_cold |
|
|
1102 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1103 | { |
|
|
1104 | const char *s = MgPV_nolen_const (mg); |
|
|
1105 | |
|
|
1106 | if (*s == '_') |
|
|
1107 | { |
|
|
1108 | SV **svp = 0; |
|
|
1109 | |
|
|
1110 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1111 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1112 | |
|
|
1113 | if (svp) |
|
|
1114 | { |
|
|
1115 | SV *old = *svp; |
|
|
1116 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1117 | SvREFCNT_dec (old); |
|
|
1118 | return 0; |
|
|
1119 | } |
|
|
1120 | } |
|
|
1121 | |
|
|
1122 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | static void |
|
|
1126 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1127 | { |
|
|
1128 | /* kind of mega-hacky, but works */ |
|
|
1129 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1130 | } |
|
|
1131 | |
676 | static void |
1132 | static int |
|
|
1133 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1134 | { |
|
|
1135 | return 0; |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | static int |
|
|
1139 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1140 | { |
|
|
1141 | return 1; |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | static UNOP init_perl_op; |
|
|
1145 | |
|
|
1146 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
677 | coro_setup (pTHX_ struct coro *coro) |
1147 | init_perl (pTHX_ struct coro *coro) |
678 | { |
1148 | { |
679 | /* |
1149 | /* |
680 | * emulate part of the perl startup here. |
1150 | * emulate part of the perl startup here. |
681 | */ |
1151 | */ |
682 | coro_init_stacks (aTHX); |
1152 | coro_init_stacks (aTHX); |
683 | |
1153 | |
684 | PL_runops = RUNOPS_DEFAULT; |
1154 | PL_runops = RUNOPS_DEFAULT; |
685 | PL_curcop = &PL_compiling; |
1155 | PL_curcop = &PL_compiling; |
686 | PL_in_eval = EVAL_NULL; |
1156 | PL_in_eval = EVAL_NULL; |
687 | PL_comppad = 0; |
1157 | PL_comppad = 0; |
|
|
1158 | PL_comppad_name = 0; |
|
|
1159 | PL_comppad_name_fill = 0; |
|
|
1160 | PL_comppad_name_floor = 0; |
688 | PL_curpm = 0; |
1161 | PL_curpm = 0; |
689 | PL_curpad = 0; |
1162 | PL_curpad = 0; |
690 | PL_localizing = 0; |
1163 | PL_localizing = 0; |
691 | PL_dirty = 0; |
|
|
692 | PL_restartop = 0; |
1164 | PL_restartop = 0; |
693 | PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
1165 | #if PERL_VERSION_ATLEAST (5,10,0) |
694 | PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
1166 | PL_parser = 0; |
695 | |
1167 | #endif |
|
|
1168 | PL_hints = 0; |
|
|
1169 | |
|
|
1170 | /* recreate the die/warn hooks */ |
|
|
1171 | PL_diehook = SvREFCNT_inc (rv_diehook); |
|
|
1172 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
|
|
1173 | |
696 | GvSV (PL_defgv) = newSV (0); |
1174 | GvSV (PL_defgv) = newSV (0); |
697 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1175 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
698 | GvSV (PL_errgv) = newSV (0); |
1176 | GvSV (PL_errgv) = newSV (0); |
699 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1177 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1178 | GvHV (PL_hintgv) = newHV (); |
|
|
1179 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1180 | hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints); |
|
|
1181 | #endif |
700 | PL_rs = newSVsv (GvSV (irsgv)); |
1182 | PL_rs = newSVsv (GvSV (irsgv)); |
701 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
1183 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
702 | |
1184 | |
703 | { |
1185 | { |
704 | dSP; |
1186 | dSP; |
705 | LOGOP myop; |
1187 | UNOP myop; |
706 | |
1188 | |
707 | Zero (&myop, 1, LOGOP); |
1189 | Zero (&myop, 1, UNOP); |
708 | myop.op_next = Nullop; |
1190 | myop.op_next = Nullop; |
|
|
1191 | myop.op_type = OP_ENTERSUB; |
709 | myop.op_flags = OPf_WANT_VOID; |
1192 | myop.op_flags = OPf_WANT_VOID; |
710 | |
1193 | |
711 | PUSHMARK (SP); |
1194 | PUSHMARK (SP); |
712 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1195 | PUSHs ((SV *)coro->startcv); |
713 | PUTBACK; |
1196 | PUTBACK; |
714 | PL_op = (OP *)&myop; |
1197 | PL_op = (OP *)&myop; |
715 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1198 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
716 | SPAGAIN; |
|
|
717 | |
|
|
718 | /* |
|
|
719 | * now its very tricky. the "tail" of the next transfer might end up |
|
|
720 | * either in a new cctx, or an existing one. |
|
|
721 | * in case of an existing one we have to take care of whatever |
|
|
722 | * entersub and transfer do to the perl stack. |
|
|
723 | */ |
|
|
724 | ENTER; |
|
|
725 | EXTEND (SP, 4); |
|
|
726 | PUSHs ((SV *)0); /* items */ |
|
|
727 | PUSHs ((SV *)0); /* ix, set_stacklevel */ |
|
|
728 | PUSHs ((SV *)(sp - PL_stack_base + 1)); /* ax */ |
|
|
729 | PUSHs ((SV *)0); /* again */ |
|
|
730 | PUTBACK; |
|
|
731 | } |
1199 | } |
732 | } |
|
|
733 | |
1200 | |
|
|
1201 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
1202 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1203 | */ |
|
|
1204 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1205 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1206 | slf_frame.destroy = 0; |
|
|
1207 | |
|
|
1208 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1209 | init_perl_op.op_next = PL_op; |
|
|
1210 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1211 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1212 | /* no flags etc. required, as an init function won't be called */ |
|
|
1213 | |
|
|
1214 | PL_op = (OP *)&init_perl_op; |
|
|
1215 | |
|
|
1216 | /* copy throw, in case it was set before init_perl */ |
|
|
1217 | CORO_THROW = coro->except; |
|
|
1218 | |
|
|
1219 | SWAP_SVS (coro); |
|
|
1220 | |
|
|
1221 | if (ecb_expect_false (enable_times)) |
|
|
1222 | { |
|
|
1223 | coro_times_update (); |
|
|
1224 | coro_times_sub (coro); |
|
|
1225 | } |
|
|
1226 | } |
|
|
1227 | |
734 | static void |
1228 | static void |
735 | coro_destroy (pTHX_ struct coro *coro) |
1229 | coro_unwind_stacks (pTHX) |
736 | { |
1230 | { |
737 | if (!IN_DESTRUCT) |
1231 | if (!IN_DESTRUCT) |
738 | { |
1232 | { |
739 | /* restore all saved variables and stuff */ |
1233 | /* restore all saved variables and stuff */ |
740 | LEAVE_SCOPE (0); |
1234 | LEAVE_SCOPE (0); |
… | |
… | |
748 | POPSTACK_TO (PL_mainstack); |
1242 | POPSTACK_TO (PL_mainstack); |
749 | |
1243 | |
750 | /* unwind main stack */ |
1244 | /* unwind main stack */ |
751 | dounwind (-1); |
1245 | dounwind (-1); |
752 | } |
1246 | } |
|
|
1247 | } |
753 | |
1248 | |
754 | SvREFCNT_dec (GvSV (PL_defgv)); |
1249 | static void |
755 | SvREFCNT_dec (GvAV (PL_defgv)); |
1250 | destroy_perl (pTHX_ struct coro *coro) |
756 | SvREFCNT_dec (GvSV (PL_errgv)); |
1251 | { |
757 | SvREFCNT_dec (PL_defoutgv); |
1252 | SV *svf [9]; |
758 | SvREFCNT_dec (PL_rs); |
|
|
759 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
760 | |
1253 | |
761 | SvREFCNT_dec (PL_diehook); |
|
|
762 | SvREFCNT_dec (PL_warnhook); |
|
|
763 | |
1254 | { |
|
|
1255 | SV *old_current = SvRV (coro_current); |
|
|
1256 | struct coro *current = SvSTATE (old_current); |
|
|
1257 | |
|
|
1258 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1259 | |
|
|
1260 | save_perl (aTHX_ current); |
|
|
1261 | |
|
|
1262 | /* this will cause transfer_check to croak on block*/ |
|
|
1263 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1264 | |
|
|
1265 | load_perl (aTHX_ coro); |
|
|
1266 | |
|
|
1267 | coro_unwind_stacks (aTHX); |
|
|
1268 | |
|
|
1269 | /* restore swapped sv's */ |
|
|
1270 | SWAP_SVS (coro); |
|
|
1271 | |
|
|
1272 | coro_destruct_stacks (aTHX); |
|
|
1273 | |
|
|
1274 | /* now save some sv's to be free'd later */ |
|
|
1275 | svf [0] = GvSV (PL_defgv); |
|
|
1276 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1277 | svf [2] = GvSV (PL_errgv); |
|
|
1278 | svf [3] = (SV *)PL_defoutgv; |
|
|
1279 | svf [4] = PL_rs; |
|
|
1280 | svf [5] = GvSV (irsgv); |
|
|
1281 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1282 | svf [7] = PL_diehook; |
|
|
1283 | svf [8] = PL_warnhook; |
|
|
1284 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1285 | |
|
|
1286 | SvRV_set (coro_current, old_current); |
|
|
1287 | |
|
|
1288 | load_perl (aTHX_ current); |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | { |
|
|
1292 | unsigned int i; |
|
|
1293 | |
|
|
1294 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1295 | SvREFCNT_dec (svf [i]); |
|
|
1296 | |
764 | SvREFCNT_dec (coro->saved_deffh); |
1297 | SvREFCNT_dec (coro->saved_deffh); |
765 | SvREFCNT_dec (coro->throw); |
1298 | SvREFCNT_dec (coro->rouse_cb); |
766 | |
1299 | SvREFCNT_dec (coro->invoke_cb); |
767 | coro_destroy_stacks (aTHX); |
1300 | SvREFCNT_dec (coro->invoke_av); |
|
|
1301 | SvREFCNT_dec (coro->on_enter_xs); |
|
|
1302 | SvREFCNT_dec (coro->on_leave_xs); |
|
|
1303 | } |
768 | } |
1304 | } |
769 | |
1305 | |
770 | static void |
1306 | ecb_inline void |
771 | free_coro_mortal (pTHX) |
1307 | free_coro_mortal (pTHX) |
772 | { |
1308 | { |
773 | if (expect_true (coro_mortal)) |
1309 | if (ecb_expect_true (coro_mortal)) |
774 | { |
1310 | { |
775 | SvREFCNT_dec (coro_mortal); |
1311 | SvREFCNT_dec ((SV *)coro_mortal); |
776 | coro_mortal = 0; |
1312 | coro_mortal = 0; |
777 | } |
1313 | } |
778 | } |
1314 | } |
779 | |
1315 | |
780 | static int |
1316 | static int |
781 | runops_trace (pTHX) |
1317 | runops_trace (pTHX) |
782 | { |
1318 | { |
783 | COP *oldcop = 0; |
1319 | COP *oldcop = 0; |
784 | int oldcxix = -2; |
1320 | int oldcxix = -2; |
785 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
786 | coro_cctx *cctx = coro->cctx; |
|
|
787 | |
1321 | |
788 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1322 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
789 | { |
1323 | { |
790 | PERL_ASYNC_CHECK (); |
1324 | PERL_ASYNC_CHECK (); |
791 | |
1325 | |
792 | if (cctx->flags & CC_TRACE_ALL) |
1326 | if (cctx_current->flags & CC_TRACE_ALL) |
793 | { |
1327 | { |
794 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1328 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
795 | { |
1329 | { |
796 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1330 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
797 | SV **bot, **top; |
1331 | SV **bot, **top; |
798 | AV *av = newAV (); /* return values */ |
1332 | AV *av = newAV (); /* return values */ |
799 | SV **cb; |
1333 | SV **cb; |
… | |
… | |
809 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1343 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
810 | : bot; |
1344 | : bot; |
811 | |
1345 | |
812 | av_extend (av, top - bot); |
1346 | av_extend (av, top - bot); |
813 | while (bot < top) |
1347 | while (bot < top) |
814 | av_push (av, SvREFCNT_inc (*bot++)); |
1348 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
815 | |
1349 | |
816 | PL_runops = RUNOPS_DEFAULT; |
1350 | PL_runops = RUNOPS_DEFAULT; |
817 | ENTER; |
1351 | ENTER; |
818 | SAVETMPS; |
1352 | SAVETMPS; |
819 | EXTEND (SP, 3); |
1353 | EXTEND (SP, 3); |
820 | PUSHMARK (SP); |
1354 | PUSHMARK (SP); |
821 | PUSHs (&PL_sv_no); |
1355 | PUSHs (&PL_sv_no); |
822 | PUSHs (fullname); |
1356 | PUSHs (fullname); |
823 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
1357 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
824 | PUTBACK; |
1358 | PUTBACK; |
825 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
1359 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
826 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1360 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
827 | SPAGAIN; |
1361 | SPAGAIN; |
828 | FREETMPS; |
1362 | FREETMPS; |
829 | LEAVE; |
1363 | LEAVE; |
830 | PL_runops = runops_trace; |
1364 | PL_runops = runops_trace; |
… | |
… | |
836 | |
1370 | |
837 | if (PL_curcop != &PL_compiling) |
1371 | if (PL_curcop != &PL_compiling) |
838 | { |
1372 | { |
839 | SV **cb; |
1373 | SV **cb; |
840 | |
1374 | |
841 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1375 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0) |
842 | { |
1376 | { |
843 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1377 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
844 | |
1378 | |
845 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1379 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
846 | { |
1380 | { |
847 | runops_proc_t old_runops = PL_runops; |
|
|
848 | dSP; |
1381 | dSP; |
849 | GV *gv = CvGV (cx->blk_sub.cv); |
1382 | GV *gv = CvGV (cx->blk_sub.cv); |
850 | SV *fullname = sv_2mortal (newSV (0)); |
1383 | SV *fullname = sv_2mortal (newSV (0)); |
851 | |
1384 | |
852 | if (isGV (gv)) |
1385 | if (isGV (gv)) |
… | |
… | |
857 | SAVETMPS; |
1390 | SAVETMPS; |
858 | EXTEND (SP, 3); |
1391 | EXTEND (SP, 3); |
859 | PUSHMARK (SP); |
1392 | PUSHMARK (SP); |
860 | PUSHs (&PL_sv_yes); |
1393 | PUSHs (&PL_sv_yes); |
861 | PUSHs (fullname); |
1394 | PUSHs (fullname); |
862 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1395 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
863 | PUTBACK; |
1396 | PUTBACK; |
864 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
1397 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
865 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1398 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
866 | SPAGAIN; |
1399 | SPAGAIN; |
867 | FREETMPS; |
1400 | FREETMPS; |
868 | LEAVE; |
1401 | LEAVE; |
869 | PL_runops = runops_trace; |
1402 | PL_runops = runops_trace; |
870 | } |
1403 | } |
871 | |
1404 | |
872 | oldcxix = cxstack_ix; |
1405 | oldcxix = cxstack_ix; |
873 | } |
1406 | } |
874 | |
1407 | |
875 | if (cctx->flags & CC_TRACE_LINE) |
1408 | if (cctx_current->flags & CC_TRACE_LINE) |
876 | { |
1409 | { |
877 | dSP; |
1410 | dSP; |
878 | |
1411 | |
879 | PL_runops = RUNOPS_DEFAULT; |
1412 | PL_runops = RUNOPS_DEFAULT; |
880 | ENTER; |
1413 | ENTER; |
… | |
… | |
883 | PL_runops = RUNOPS_DEFAULT; |
1416 | PL_runops = RUNOPS_DEFAULT; |
884 | PUSHMARK (SP); |
1417 | PUSHMARK (SP); |
885 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
1418 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
886 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
1419 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
887 | PUTBACK; |
1420 | PUTBACK; |
888 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
1421 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
889 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1422 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
890 | SPAGAIN; |
1423 | SPAGAIN; |
891 | FREETMPS; |
1424 | FREETMPS; |
892 | LEAVE; |
1425 | LEAVE; |
893 | PL_runops = runops_trace; |
1426 | PL_runops = runops_trace; |
… | |
… | |
899 | |
1432 | |
900 | TAINT_NOT; |
1433 | TAINT_NOT; |
901 | return 0; |
1434 | return 0; |
902 | } |
1435 | } |
903 | |
1436 | |
904 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1437 | static struct CoroSLF cctx_ssl_frame; |
905 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
906 | /* during execution of a perl program */ |
|
|
907 | static void NOINLINE |
|
|
908 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
909 | { |
|
|
910 | dSP; |
|
|
911 | LOGOP myop; |
|
|
912 | |
1438 | |
|
|
1439 | static void |
|
|
1440 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1441 | { |
|
|
1442 | ta->prev = 0; |
|
|
1443 | } |
|
|
1444 | |
|
|
1445 | static int |
|
|
1446 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1447 | { |
|
|
1448 | *frame = cctx_ssl_frame; |
|
|
1449 | |
|
|
1450 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1454 | static void ecb_noinline |
|
|
1455 | cctx_prepare (pTHX) |
|
|
1456 | { |
913 | PL_top_env = &PL_start_env; |
1457 | PL_top_env = &PL_start_env; |
914 | |
1458 | |
915 | if (cctx->flags & CC_TRACE) |
1459 | if (cctx_current->flags & CC_TRACE) |
916 | PL_runops = runops_trace; |
1460 | PL_runops = runops_trace; |
917 | |
1461 | |
918 | Zero (&myop, 1, LOGOP); |
1462 | /* we already must be executing an SLF op, there is no other valid way |
919 | myop.op_next = PL_op; |
1463 | * that can lead to creation of a new cctx */ |
920 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1464 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1465 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
921 | |
1466 | |
922 | PUSHMARK (SP); |
1467 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
923 | EXTEND (SP, 2); |
1468 | cctx_ssl_frame = slf_frame; |
924 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1469 | |
925 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1470 | slf_frame.prepare = slf_prepare_set_stacklevel; |
926 | PUTBACK; |
1471 | slf_frame.check = slf_check_set_stacklevel; |
927 | PL_op = (OP *)&myop; |
1472 | } |
928 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1473 | |
929 | SPAGAIN; |
1474 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1475 | ecb_inline void |
|
|
1476 | transfer_tail (pTHX) |
|
|
1477 | { |
|
|
1478 | free_coro_mortal (aTHX); |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | /* try to exit the same way perl's main function would do */ |
|
|
1482 | /* we do not bother resetting the environment or other things *7 |
|
|
1483 | /* that are not, uhm, essential */ |
|
|
1484 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1485 | static void ecb_noinline ecb_cold |
|
|
1486 | perlish_exit (pTHX) |
|
|
1487 | { |
|
|
1488 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1489 | perl_free (PL_curinterp); |
|
|
1490 | exit (exitstatus); |
930 | } |
1491 | } |
931 | |
1492 | |
932 | /* |
1493 | /* |
933 | * this is a _very_ stripped down perl interpreter ;) |
1494 | * this is a _very_ stripped down perl interpreter ;) |
934 | */ |
1495 | */ |
935 | static void |
1496 | static void |
936 | cctx_run (void *arg) |
1497 | cctx_run (void *arg) |
937 | { |
1498 | { |
|
|
1499 | #ifdef USE_ITHREADS |
|
|
1500 | # if CORO_PTHREAD |
|
|
1501 | PERL_SET_CONTEXT (coro_thx); |
|
|
1502 | # endif |
|
|
1503 | #endif |
|
|
1504 | { |
938 | dTHX; |
1505 | dTHX; |
939 | |
1506 | |
940 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1507 | /* normally we would need to skip the entersub here */ |
941 | UNLOCK; |
1508 | /* not doing so will re-execute it, which is exactly what we want */ |
942 | |
|
|
943 | /* we now skip the entersub that lead to transfer() */ |
|
|
944 | PL_op = PL_op->op_next; |
1509 | /* PL_nop = PL_nop->op_next */ |
945 | |
1510 | |
946 | /* inject a fake subroutine call to cctx_init */ |
1511 | /* inject a fake subroutine call to cctx_init */ |
947 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1512 | cctx_prepare (aTHX); |
948 | |
1513 | |
|
|
1514 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1515 | transfer_tail (aTHX); |
|
|
1516 | |
949 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1517 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
950 | PL_restartop = PL_op; |
1518 | PL_restartop = PL_op; |
951 | perl_run (PL_curinterp); |
1519 | perl_run (PL_curinterp); |
952 | |
|
|
953 | /* |
1520 | /* |
|
|
1521 | * Unfortunately, there is no way to get at the return values of the |
|
|
1522 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1523 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1524 | */ |
|
|
1525 | |
|
|
1526 | /* |
954 | * If perl-run returns we assume exit() was being called or the coro |
1527 | * If perl-run returns we assume exit() was being called or the coro |
955 | * fell off the end, which seems to be the only valid (non-bug) |
1528 | * fell off the end, which seems to be the only valid (non-bug) |
956 | * reason for perl_run to return. We try to exit by jumping to the |
1529 | * reason for perl_run to return. We try to mimic whatever perl is normally |
957 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1530 | * doing in that case. YMMV. |
958 | * coroutine as Coro has no such concept |
|
|
959 | */ |
1531 | */ |
960 | PL_top_env = main_top_env; |
1532 | perlish_exit (aTHX); |
961 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1533 | } |
962 | } |
1534 | } |
963 | |
1535 | |
964 | static coro_cctx * |
1536 | static coro_cctx * |
965 | cctx_new () |
1537 | cctx_new (void) |
966 | { |
1538 | { |
967 | coro_cctx *cctx; |
1539 | coro_cctx *cctx; |
968 | void *stack_start; |
|
|
969 | size_t stack_size; |
|
|
970 | |
1540 | |
971 | ++cctx_count; |
1541 | ++cctx_count; |
972 | |
|
|
973 | Newz (0, cctx, 1, coro_cctx); |
1542 | New (0, cctx, 1, coro_cctx); |
974 | |
1543 | |
975 | #if HAVE_MMAP |
1544 | cctx->gen = cctx_gen; |
976 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1545 | cctx->flags = 0; |
977 | /* mmap supposedly does allocate-on-write for us */ |
1546 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
978 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
979 | |
1547 | |
980 | if (cctx->sptr != (void *)-1) |
1548 | return cctx; |
981 | { |
1549 | } |
982 | # if CORO_STACKGUARD |
1550 | |
983 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1551 | /* create a new cctx only suitable as source */ |
984 | # endif |
1552 | static coro_cctx * |
985 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1553 | cctx_new_empty (void) |
986 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1554 | { |
987 | cctx->flags |= CC_MAPPED; |
1555 | coro_cctx *cctx = cctx_new (); |
|
|
1556 | |
|
|
1557 | cctx->stack.sptr = 0; |
|
|
1558 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1559 | |
|
|
1560 | return cctx; |
|
|
1561 | } |
|
|
1562 | |
|
|
1563 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1564 | static coro_cctx * |
|
|
1565 | cctx_new_run (void) |
|
|
1566 | { |
|
|
1567 | coro_cctx *cctx = cctx_new (); |
|
|
1568 | |
|
|
1569 | if (!coro_stack_alloc (&cctx->stack, cctx_stacksize)) |
988 | } |
1570 | { |
989 | else |
|
|
990 | #endif |
|
|
991 | { |
|
|
992 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
993 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
994 | |
|
|
995 | if (!cctx->sptr) |
|
|
996 | { |
|
|
997 | perror ("FATAL: unable to allocate stack for coroutine"); |
1571 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
998 | _exit (EXIT_FAILURE); |
1572 | _exit (EXIT_FAILURE); |
999 | } |
|
|
1000 | |
|
|
1001 | stack_start = cctx->sptr; |
|
|
1002 | stack_size = cctx->ssize; |
|
|
1003 | } |
1573 | } |
1004 | |
1574 | |
1005 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
1006 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1575 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze); |
1007 | |
1576 | |
1008 | return cctx; |
1577 | return cctx; |
1009 | } |
1578 | } |
1010 | |
1579 | |
1011 | static void |
1580 | static void |
1012 | cctx_destroy (coro_cctx *cctx) |
1581 | cctx_destroy (coro_cctx *cctx) |
1013 | { |
1582 | { |
1014 | if (!cctx) |
1583 | if (!cctx) |
1015 | return; |
1584 | return; |
1016 | |
1585 | |
|
|
1586 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1587 | |
1017 | --cctx_count; |
1588 | --cctx_count; |
|
|
1589 | coro_destroy (&cctx->cctx); |
1018 | |
1590 | |
1019 | #if CORO_USE_VALGRIND |
1591 | coro_stack_free (&cctx->stack); |
1020 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1021 | #endif |
|
|
1022 | |
|
|
1023 | #if HAVE_MMAP |
|
|
1024 | if (cctx->flags & CC_MAPPED) |
|
|
1025 | munmap (cctx->sptr, cctx->ssize); |
|
|
1026 | else |
|
|
1027 | #endif |
|
|
1028 | Safefree (cctx->sptr); |
|
|
1029 | |
1592 | |
1030 | Safefree (cctx); |
1593 | Safefree (cctx); |
1031 | } |
1594 | } |
1032 | |
1595 | |
1033 | /* wether this cctx should be destructed */ |
1596 | /* wether this cctx should be destructed */ |
1034 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1597 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1035 | |
1598 | |
1036 | static coro_cctx * |
1599 | static coro_cctx * |
1037 | cctx_get (pTHX_ int gimme) |
1600 | cctx_get (pTHX) |
1038 | { |
1601 | { |
1039 | while (expect_true (cctx_first[gimme])) |
1602 | while (ecb_expect_true (cctx_first)) |
1040 | { |
1603 | { |
1041 | coro_cctx *cctx = cctx_first[gimme]; |
1604 | coro_cctx *cctx = cctx_first; |
1042 | cctx_first[gimme] = cctx->next; |
1605 | cctx_first = cctx->next; |
1043 | --cctx_idle[gimme]; |
1606 | --cctx_idle; |
1044 | |
1607 | |
1045 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1608 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1046 | return cctx; |
1609 | return cctx; |
1047 | |
1610 | |
1048 | cctx_destroy (cctx); |
1611 | cctx_destroy (cctx); |
1049 | } |
1612 | } |
1050 | |
1613 | |
1051 | assert (!gimme); |
|
|
1052 | return cctx_new (); |
1614 | return cctx_new_run (); |
1053 | } |
1615 | } |
1054 | |
1616 | |
1055 | static void |
1617 | static void |
1056 | cctx_put (coro_cctx *cctx, int gimme) |
1618 | cctx_put (coro_cctx *cctx) |
1057 | { |
1619 | { |
|
|
1620 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr)); |
|
|
1621 | |
1058 | /* free another cctx if overlimit */ |
1622 | /* free another cctx if overlimit */ |
1059 | if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX)) |
1623 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1060 | { |
1624 | { |
1061 | coro_cctx *first = cctx_first[gimme]; |
1625 | coro_cctx *first = cctx_first; |
1062 | cctx_first[gimme] = first->next; |
1626 | cctx_first = first->next; |
1063 | --cctx_idle[gimme]; |
1627 | --cctx_idle; |
1064 | |
1628 | |
1065 | cctx_destroy (first); |
1629 | cctx_destroy (first); |
1066 | } |
1630 | } |
1067 | |
1631 | |
1068 | ++cctx_idle[gimme]; |
1632 | ++cctx_idle; |
1069 | cctx->next = cctx_first[gimme]; |
1633 | cctx->next = cctx_first; |
1070 | cctx_first[gimme] = cctx; |
1634 | cctx_first = cctx; |
1071 | } |
1635 | } |
1072 | |
1636 | |
1073 | /** coroutine switching *****************************************************/ |
1637 | /** coroutine switching *****************************************************/ |
1074 | |
1638 | |
1075 | static void |
1639 | static void |
1076 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1640 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1077 | { |
1641 | { |
|
|
1642 | /* TODO: throwing up here is considered harmful */ |
|
|
1643 | |
1078 | if (expect_true (prev != next)) |
1644 | if (ecb_expect_true (prev != next)) |
1079 | { |
1645 | { |
1080 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1646 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1081 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1647 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1082 | |
1648 | |
1083 | if (expect_false (next->flags & CF_RUNNING)) |
1649 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1084 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1085 | |
|
|
1086 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1087 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1650 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1088 | |
1651 | |
1089 | if ( |
|
|
1090 | #if PERL_VERSION_ATLEAST (5,9,0) |
1652 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1091 | expect_false (PL_parser) |
|
|
1092 | #else |
|
|
1093 | expect_false (PL_lex_state != LEX_NOTPARSING) |
1653 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1094 | #endif |
|
|
1095 | ) |
|
|
1096 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1654 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1655 | #endif |
1097 | } |
1656 | } |
1098 | } |
1657 | } |
1099 | |
1658 | |
1100 | /* always use the TRANSFER macro */ |
1659 | /* always use the TRANSFER macro */ |
1101 | static void NOINLINE |
1660 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1102 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1661 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1103 | { |
1662 | { |
1104 | dSTACKLEVEL; |
1663 | dSTACKLEVEL; |
1105 | |
1664 | |
1106 | /* sometimes transfer is only called to set idle_sp */ |
1665 | /* sometimes transfer is only called to set idle_sp */ |
1107 | if (expect_false (!next)) |
1666 | if (ecb_expect_false (!prev)) |
1108 | { |
1667 | { |
1109 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1668 | cctx_current->idle_sp = STACKLEVEL; |
1110 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1669 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1111 | } |
1670 | } |
1112 | else if (expect_true (prev != next)) |
1671 | else if (ecb_expect_true (prev != next)) |
1113 | { |
1672 | { |
1114 | coro_cctx *prev__cctx; |
1673 | coro_cctx *cctx_prev; |
1115 | |
1674 | |
1116 | if (expect_false (prev->flags & CF_NEW)) |
1675 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1117 | { |
1676 | { |
1118 | /* create a new empty context */ |
1677 | /* create a new empty/source context */ |
1119 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1120 | prev->flags &= ~CF_NEW; |
1678 | prev->flags &= ~CF_NEW; |
1121 | prev->flags |= CF_RUNNING; |
1679 | prev->flags |= CF_RUNNING; |
1122 | } |
1680 | } |
1123 | |
1681 | |
1124 | prev->flags &= ~CF_RUNNING; |
1682 | prev->flags &= ~CF_RUNNING; |
1125 | next->flags |= CF_RUNNING; |
1683 | next->flags |= CF_RUNNING; |
1126 | |
1684 | |
1127 | LOCK; |
1685 | /* first get rid of the old state */ |
|
|
1686 | save_perl (aTHX_ prev); |
1128 | |
1687 | |
1129 | if (expect_false (next->flags & CF_NEW)) |
1688 | if (ecb_expect_false (next->flags & CF_NEW)) |
1130 | { |
1689 | { |
1131 | /* need to start coroutine */ |
1690 | /* need to start coroutine */ |
1132 | next->flags &= ~CF_NEW; |
1691 | next->flags &= ~CF_NEW; |
1133 | /* first get rid of the old state */ |
|
|
1134 | save_perl (aTHX_ prev); |
|
|
1135 | /* setup coroutine call */ |
1692 | /* setup coroutine call */ |
1136 | coro_setup (aTHX_ next); |
1693 | init_perl (aTHX_ next); |
1137 | } |
1694 | } |
1138 | else |
1695 | else |
|
|
1696 | load_perl (aTHX_ next); |
|
|
1697 | |
|
|
1698 | /* possibly untie and reuse the cctx */ |
|
|
1699 | if (ecb_expect_true ( |
|
|
1700 | cctx_current->idle_sp == STACKLEVEL |
|
|
1701 | && !(cctx_current->flags & CC_TRACE) |
|
|
1702 | && !force_cctx |
|
|
1703 | )) |
1139 | { |
1704 | { |
1140 | /* coroutine already started */ |
1705 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1141 | save_perl (aTHX_ prev); |
1706 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1142 | load_perl (aTHX_ next); |
1707 | |
|
|
1708 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1709 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1710 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1711 | if (ecb_expect_true (!next->cctx)) |
|
|
1712 | next->cctx = cctx_get (aTHX); |
|
|
1713 | |
|
|
1714 | cctx_put (cctx_current); |
1143 | } |
1715 | } |
|
|
1716 | else |
|
|
1717 | prev->cctx = cctx_current; |
1144 | |
1718 | |
1145 | prev__cctx = prev->cctx; |
1719 | ++next->usecount; |
1146 | |
1720 | |
1147 | /* possibly "free" the cctx */ |
1721 | cctx_prev = cctx_current; |
1148 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
1722 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1723 | |
|
|
1724 | next->cctx = 0; |
|
|
1725 | |
|
|
1726 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1149 | { |
1727 | { |
1150 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1728 | cctx_prev->top_env = PL_top_env; |
1151 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1729 | PL_top_env = cctx_current->top_env; |
1152 | |
1730 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1153 | prev->cctx = 0; |
|
|
1154 | |
|
|
1155 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1156 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1157 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1158 | if (!next->cctx) |
|
|
1159 | next->cctx = cctx_get (aTHX_ next->gimme); |
|
|
1160 | |
|
|
1161 | cctx_put (prev__cctx, prev->gimme); |
|
|
1162 | } |
1731 | } |
1163 | |
1732 | |
1164 | ++next->usecount; |
1733 | transfer_tail (aTHX); |
1165 | |
|
|
1166 | if (expect_true (!next->cctx)) |
|
|
1167 | next->cctx = cctx_get (aTHX_ next->gimme); |
|
|
1168 | |
|
|
1169 | if (expect_false (prev__cctx != next->cctx)) |
|
|
1170 | { |
|
|
1171 | prev__cctx->top_env = PL_top_env; |
|
|
1172 | PL_top_env = next->cctx->top_env; |
|
|
1173 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
1174 | } |
|
|
1175 | |
|
|
1176 | free_coro_mortal (aTHX); |
|
|
1177 | UNLOCK; |
|
|
1178 | |
|
|
1179 | if (expect_false (prev->throw || next->throw)) |
|
|
1180 | { |
|
|
1181 | struct coro *coro = SvSTATE (coro_current); |
|
|
1182 | |
|
|
1183 | if (coro->throw) |
|
|
1184 | { |
|
|
1185 | SV *exception = coro->throw; |
|
|
1186 | coro->throw = 0; |
|
|
1187 | sv_setsv (ERRSV, exception); |
|
|
1188 | croak (0); |
|
|
1189 | } |
|
|
1190 | } |
|
|
1191 | } |
1734 | } |
1192 | } |
1735 | } |
1193 | |
1736 | |
1194 | struct transfer_args |
|
|
1195 | { |
|
|
1196 | struct coro *prev, *next; |
|
|
1197 | }; |
|
|
1198 | |
|
|
1199 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1737 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1200 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1738 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1201 | |
1739 | |
1202 | /** high level stuff ********************************************************/ |
1740 | /** high level stuff ********************************************************/ |
1203 | |
1741 | |
|
|
1742 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1743 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1204 | static int |
1744 | static void |
|
|
1745 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1746 | |
|
|
1747 | static void |
1205 | coro_state_destroy (pTHX_ struct coro *coro) |
1748 | coro_state_destroy (pTHX_ struct coro *coro) |
1206 | { |
1749 | { |
1207 | if (coro->flags & CF_DESTROYED) |
1750 | if (coro->flags & CF_ZOMBIE) |
1208 | return 0; |
1751 | return; |
1209 | |
1752 | |
|
|
1753 | slf_destroy (aTHX_ coro); |
|
|
1754 | |
1210 | coro->flags |= CF_DESTROYED; |
1755 | coro->flags |= CF_ZOMBIE; |
1211 | |
1756 | |
1212 | if (coro->flags & CF_READY) |
1757 | if (coro->flags & CF_READY) |
1213 | { |
1758 | { |
1214 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1759 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1215 | /* alternative: look through all ready queues and remove the coro */ |
1760 | /* alternative: look through all ready queues and remove the coro */ |
1216 | LOCK; |
|
|
1217 | --coro_nready; |
1761 | --coro_nready; |
1218 | UNLOCK; |
|
|
1219 | } |
1762 | } |
1220 | else |
1763 | else |
1221 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1764 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1222 | |
|
|
1223 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1224 | { |
|
|
1225 | struct coro temp; |
|
|
1226 | |
|
|
1227 | if (coro->flags & CF_RUNNING) |
|
|
1228 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1229 | |
|
|
1230 | save_perl (aTHX_ &temp); |
|
|
1231 | load_perl (aTHX_ coro); |
|
|
1232 | |
|
|
1233 | coro_destroy (aTHX_ coro); |
|
|
1234 | |
|
|
1235 | load_perl (aTHX_ &temp); |
|
|
1236 | |
|
|
1237 | coro->slot = 0; |
|
|
1238 | } |
|
|
1239 | |
|
|
1240 | cctx_destroy (coro->cctx); |
|
|
1241 | SvREFCNT_dec (coro->args); |
|
|
1242 | |
1765 | |
1243 | if (coro->next) coro->next->prev = coro->prev; |
1766 | if (coro->next) coro->next->prev = coro->prev; |
1244 | if (coro->prev) coro->prev->next = coro->next; |
1767 | if (coro->prev) coro->prev->next = coro->next; |
1245 | if (coro == coro_first) coro_first = coro->next; |
1768 | if (coro == coro_first) coro_first = coro->next; |
1246 | |
1769 | |
1247 | return 1; |
1770 | if (coro->mainstack |
|
|
1771 | && coro->mainstack != main_mainstack |
|
|
1772 | && coro->slot |
|
|
1773 | && !PL_dirty) |
|
|
1774 | destroy_perl (aTHX_ coro); |
|
|
1775 | |
|
|
1776 | cctx_destroy (coro->cctx); |
|
|
1777 | SvREFCNT_dec (coro->startcv); |
|
|
1778 | SvREFCNT_dec (coro->args); |
|
|
1779 | SvREFCNT_dec (coro->swap_sv); |
|
|
1780 | SvREFCNT_dec (CORO_THROW); |
|
|
1781 | |
|
|
1782 | coro_call_on_destroy (aTHX_ coro); |
|
|
1783 | |
|
|
1784 | /* more destruction mayhem in coro_state_free */ |
1248 | } |
1785 | } |
1249 | |
1786 | |
1250 | static int |
1787 | static int |
1251 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1788 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1252 | { |
1789 | { |
1253 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1790 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1254 | mg->mg_ptr = 0; |
1791 | mg->mg_ptr = 0; |
1255 | |
1792 | |
1256 | coro->hv = 0; |
|
|
1257 | |
|
|
1258 | if (--coro->refcnt < 0) |
|
|
1259 | { |
|
|
1260 | coro_state_destroy (aTHX_ coro); |
1793 | coro_state_destroy (aTHX_ coro); |
|
|
1794 | SvREFCNT_dec (coro->on_destroy); |
|
|
1795 | SvREFCNT_dec (coro->status); |
|
|
1796 | |
1261 | Safefree (coro); |
1797 | Safefree (coro); |
1262 | } |
|
|
1263 | |
1798 | |
1264 | return 0; |
1799 | return 0; |
1265 | } |
1800 | } |
1266 | |
1801 | |
1267 | static int |
1802 | static int ecb_cold |
1268 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1803 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1269 | { |
1804 | { |
1270 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1805 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1271 | |
1806 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1272 | ++coro->refcnt; |
1807 | mg->mg_ptr = 0; |
|
|
1808 | mg->mg_virtual = 0; |
1273 | |
1809 | |
1274 | return 0; |
1810 | return 0; |
1275 | } |
1811 | } |
1276 | |
1812 | |
1277 | static MGVTBL coro_state_vtbl = { |
1813 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1284 | # define MGf_DUP 0 |
1820 | # define MGf_DUP 0 |
1285 | #endif |
1821 | #endif |
1286 | }; |
1822 | }; |
1287 | |
1823 | |
1288 | static void |
1824 | static void |
1289 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1825 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1290 | { |
1826 | { |
1291 | ta->prev = SvSTATE (prev_sv); |
1827 | ta->prev = SvSTATE (prev_sv); |
1292 | ta->next = SvSTATE (next_sv); |
1828 | ta->next = SvSTATE (next_sv); |
1293 | TRANSFER_CHECK (*ta); |
1829 | TRANSFER_CHECK (*ta); |
1294 | } |
1830 | } |
1295 | |
1831 | |
1296 | static void |
1832 | static void |
1297 | api_transfer (SV *prev_sv, SV *next_sv) |
1833 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
|
|
1834 | { |
|
|
1835 | struct coro_transfer_args ta; |
|
|
1836 | |
|
|
1837 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1838 | TRANSFER (ta, 1); |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | /** Coro ********************************************************************/ |
|
|
1842 | |
|
|
1843 | ecb_inline void |
|
|
1844 | coro_enq (pTHX_ struct coro *coro) |
|
|
1845 | { |
|
|
1846 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1847 | |
|
|
1848 | SvREFCNT_inc_NN (coro->hv); |
|
|
1849 | |
|
|
1850 | coro->next_ready = 0; |
|
|
1851 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1852 | ready [1] = coro; |
|
|
1853 | } |
|
|
1854 | |
|
|
1855 | ecb_inline struct coro * |
|
|
1856 | coro_deq (pTHX) |
|
|
1857 | { |
|
|
1858 | int prio; |
|
|
1859 | |
|
|
1860 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1861 | { |
|
|
1862 | struct coro **ready = coro_ready [prio]; |
|
|
1863 | |
|
|
1864 | if (ready [0]) |
|
|
1865 | { |
|
|
1866 | struct coro *coro = ready [0]; |
|
|
1867 | ready [0] = coro->next_ready; |
|
|
1868 | return coro; |
|
|
1869 | } |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | return 0; |
|
|
1873 | } |
|
|
1874 | |
|
|
1875 | static void |
|
|
1876 | invoke_sv_ready_hook_helper (void) |
1298 | { |
1877 | { |
1299 | dTHX; |
1878 | dTHX; |
1300 | struct transfer_args ta; |
1879 | dSP; |
1301 | |
1880 | |
1302 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1881 | ENTER; |
1303 | TRANSFER (ta); |
1882 | SAVETMPS; |
1304 | } |
|
|
1305 | |
1883 | |
1306 | /** Coro ********************************************************************/ |
1884 | PUSHMARK (SP); |
|
|
1885 | PUTBACK; |
|
|
1886 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
1307 | |
1887 | |
1308 | static void |
1888 | FREETMPS; |
1309 | coro_enq (pTHX_ SV *coro_sv) |
1889 | LEAVE; |
1310 | { |
|
|
1311 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | static SV * |
|
|
1315 | coro_deq (pTHX_ int min_prio) |
|
|
1316 | { |
|
|
1317 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
1318 | |
|
|
1319 | min_prio -= PRIO_MIN; |
|
|
1320 | if (min_prio < 0) |
|
|
1321 | min_prio = 0; |
|
|
1322 | |
|
|
1323 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
1324 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1325 | return av_shift (coro_ready [prio]); |
|
|
1326 | |
|
|
1327 | return 0; |
|
|
1328 | } |
1890 | } |
1329 | |
1891 | |
1330 | static int |
1892 | static int |
1331 | api_ready (SV *coro_sv) |
1893 | api_ready (pTHX_ SV *coro_sv) |
1332 | { |
1894 | { |
1333 | dTHX; |
|
|
1334 | struct coro *coro; |
|
|
1335 | |
|
|
1336 | if (SvROK (coro_sv)) |
|
|
1337 | coro_sv = SvRV (coro_sv); |
|
|
1338 | |
|
|
1339 | coro = SvSTATE (coro_sv); |
1895 | struct coro *coro = SvSTATE (coro_sv); |
1340 | |
1896 | |
1341 | if (coro->flags & CF_READY) |
1897 | if (coro->flags & CF_READY) |
1342 | return 0; |
1898 | return 0; |
1343 | |
1899 | |
1344 | coro->flags |= CF_READY; |
1900 | coro->flags |= CF_READY; |
1345 | |
1901 | |
1346 | LOCK; |
1902 | coro_enq (aTHX_ coro); |
1347 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1903 | |
1348 | ++coro_nready; |
1904 | if (!coro_nready++) |
1349 | UNLOCK; |
1905 | if (coroapi.readyhook) |
|
|
1906 | coroapi.readyhook (); |
1350 | |
1907 | |
1351 | return 1; |
1908 | return 1; |
1352 | } |
1909 | } |
1353 | |
1910 | |
1354 | static int |
1911 | static int |
1355 | api_is_ready (SV *coro_sv) |
1912 | api_is_ready (pTHX_ SV *coro_sv) |
1356 | { |
1913 | { |
1357 | dTHX; |
|
|
1358 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1914 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1359 | } |
1915 | } |
1360 | |
1916 | |
1361 | static void |
1917 | /* expects to own a reference to next->hv */ |
|
|
1918 | ecb_inline void |
1362 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1919 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1363 | { |
1920 | { |
1364 | SV *prev_sv, *next_sv; |
|
|
1365 | |
|
|
1366 | for (;;) |
|
|
1367 | { |
|
|
1368 | LOCK; |
|
|
1369 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1370 | |
|
|
1371 | /* nothing to schedule: call the idle handler */ |
|
|
1372 | if (expect_false (!next_sv)) |
|
|
1373 | { |
|
|
1374 | dSP; |
|
|
1375 | UNLOCK; |
|
|
1376 | |
|
|
1377 | ENTER; |
|
|
1378 | SAVETMPS; |
|
|
1379 | |
|
|
1380 | PUSHMARK (SP); |
|
|
1381 | PUTBACK; |
|
|
1382 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1383 | |
|
|
1384 | FREETMPS; |
|
|
1385 | LEAVE; |
|
|
1386 | continue; |
|
|
1387 | } |
|
|
1388 | |
|
|
1389 | ta->next = SvSTATE (next_sv); |
|
|
1390 | |
|
|
1391 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1392 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1393 | { |
|
|
1394 | UNLOCK; |
|
|
1395 | SvREFCNT_dec (next_sv); |
|
|
1396 | /* coro_nready is already taken care of by destroy */ |
|
|
1397 | continue; |
|
|
1398 | } |
|
|
1399 | |
|
|
1400 | --coro_nready; |
|
|
1401 | UNLOCK; |
|
|
1402 | break; |
|
|
1403 | } |
|
|
1404 | |
|
|
1405 | /* free this only after the transfer */ |
|
|
1406 | prev_sv = SvRV (coro_current); |
1921 | SV *prev_sv = SvRV (coro_current); |
|
|
1922 | |
1407 | ta->prev = SvSTATE (prev_sv); |
1923 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1924 | ta->next = next; |
|
|
1925 | |
1408 | TRANSFER_CHECK (*ta); |
1926 | TRANSFER_CHECK (*ta); |
1409 | assert (ta->next->flags & CF_READY); |
1927 | |
1410 | ta->next->flags &= ~CF_READY; |
|
|
1411 | SvRV_set (coro_current, next_sv); |
1928 | SvRV_set (coro_current, (SV *)next->hv); |
1412 | |
1929 | |
1413 | LOCK; |
|
|
1414 | free_coro_mortal (aTHX); |
1930 | free_coro_mortal (aTHX); |
1415 | coro_mortal = prev_sv; |
1931 | coro_mortal = prev_sv; |
1416 | UNLOCK; |
|
|
1417 | } |
1932 | } |
1418 | |
1933 | |
1419 | static void |
1934 | static void |
|
|
1935 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1936 | { |
|
|
1937 | for (;;) |
|
|
1938 | { |
|
|
1939 | struct coro *next = coro_deq (aTHX); |
|
|
1940 | |
|
|
1941 | if (ecb_expect_true (next)) |
|
|
1942 | { |
|
|
1943 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1944 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1945 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1946 | else |
|
|
1947 | { |
|
|
1948 | next->flags &= ~CF_READY; |
|
|
1949 | --coro_nready; |
|
|
1950 | |
|
|
1951 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1952 | break; |
|
|
1953 | } |
|
|
1954 | } |
|
|
1955 | else |
|
|
1956 | { |
|
|
1957 | /* nothing to schedule: call the idle handler */ |
|
|
1958 | if (SvROK (sv_idle) |
|
|
1959 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1960 | { |
|
|
1961 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1962 | { |
|
|
1963 | require_pv ("Carp"); |
|
|
1964 | |
|
|
1965 | { |
|
|
1966 | dSP; |
|
|
1967 | |
|
|
1968 | ENTER; |
|
|
1969 | SAVETMPS; |
|
|
1970 | |
|
|
1971 | PUSHMARK (SP); |
|
|
1972 | XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0))); |
|
|
1973 | PUTBACK; |
|
|
1974 | call_pv ("Carp::confess", G_VOID | G_DISCARD); |
|
|
1975 | |
|
|
1976 | FREETMPS; |
|
|
1977 | LEAVE; |
|
|
1978 | } |
|
|
1979 | } |
|
|
1980 | |
|
|
1981 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1982 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1983 | --coro_nready; |
|
|
1984 | } |
|
|
1985 | else |
|
|
1986 | { |
|
|
1987 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1988 | dSP; |
|
|
1989 | |
|
|
1990 | ENTER; |
|
|
1991 | SAVETMPS; |
|
|
1992 | |
|
|
1993 | PUSHMARK (SP); |
|
|
1994 | PUTBACK; |
|
|
1995 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1996 | |
|
|
1997 | FREETMPS; |
|
|
1998 | LEAVE; |
|
|
1999 | } |
|
|
2000 | } |
|
|
2001 | } |
|
|
2002 | } |
|
|
2003 | |
|
|
2004 | ecb_inline void |
1420 | prepare_cede (pTHX_ struct transfer_args *ta) |
2005 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1421 | { |
2006 | { |
1422 | api_ready (coro_current); |
2007 | api_ready (aTHX_ coro_current); |
1423 | prepare_schedule (aTHX_ ta); |
2008 | prepare_schedule (aTHX_ ta); |
1424 | } |
2009 | } |
1425 | |
2010 | |
|
|
2011 | ecb_inline void |
|
|
2012 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
2013 | { |
|
|
2014 | SV *prev = SvRV (coro_current); |
|
|
2015 | |
|
|
2016 | if (coro_nready) |
|
|
2017 | { |
|
|
2018 | prepare_schedule (aTHX_ ta); |
|
|
2019 | api_ready (aTHX_ prev); |
|
|
2020 | } |
|
|
2021 | else |
|
|
2022 | prepare_nop (aTHX_ ta); |
|
|
2023 | } |
|
|
2024 | |
|
|
2025 | static void |
|
|
2026 | api_schedule (pTHX) |
|
|
2027 | { |
|
|
2028 | struct coro_transfer_args ta; |
|
|
2029 | |
|
|
2030 | prepare_schedule (aTHX_ &ta); |
|
|
2031 | TRANSFER (ta, 1); |
|
|
2032 | } |
|
|
2033 | |
|
|
2034 | static void |
|
|
2035 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
2036 | { |
|
|
2037 | struct coro_transfer_args ta; |
|
|
2038 | struct coro *next = SvSTATE (coro_sv); |
|
|
2039 | |
|
|
2040 | SvREFCNT_inc_NN (coro_sv); |
|
|
2041 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2042 | } |
|
|
2043 | |
1426 | static int |
2044 | static int |
1427 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
2045 | api_cede (pTHX) |
1428 | { |
2046 | { |
1429 | if (coro_nready) |
2047 | struct coro_transfer_args ta; |
1430 | { |
2048 | |
1431 | SV *prev = SvRV (coro_current); |
|
|
1432 | prepare_schedule (aTHX_ ta); |
2049 | prepare_cede (aTHX_ &ta); |
1433 | api_ready (prev); |
2050 | |
|
|
2051 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
2052 | { |
|
|
2053 | TRANSFER (ta, 1); |
1434 | return 1; |
2054 | return 1; |
1435 | } |
2055 | } |
1436 | else |
2056 | else |
1437 | return 0; |
2057 | return 0; |
1438 | } |
2058 | } |
1439 | |
2059 | |
1440 | static void |
|
|
1441 | api_schedule (void) |
|
|
1442 | { |
|
|
1443 | dTHX; |
|
|
1444 | struct transfer_args ta; |
|
|
1445 | |
|
|
1446 | prepare_schedule (aTHX_ &ta); |
|
|
1447 | TRANSFER (ta); |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | static int |
2060 | static int |
1451 | api_cede (void) |
2061 | api_cede_notself (pTHX) |
1452 | { |
2062 | { |
1453 | dTHX; |
2063 | if (coro_nready) |
|
|
2064 | { |
1454 | struct transfer_args ta; |
2065 | struct coro_transfer_args ta; |
1455 | |
2066 | |
1456 | prepare_cede (aTHX_ &ta); |
2067 | prepare_cede_notself (aTHX_ &ta); |
1457 | |
|
|
1458 | if (expect_true (ta.prev != ta.next)) |
|
|
1459 | { |
|
|
1460 | TRANSFER (ta); |
2068 | TRANSFER (ta, 1); |
1461 | return 1; |
2069 | return 1; |
1462 | } |
2070 | } |
1463 | else |
2071 | else |
1464 | return 0; |
2072 | return 0; |
1465 | } |
2073 | } |
1466 | |
2074 | |
1467 | static int |
2075 | static void |
1468 | api_cede_notself (void) |
|
|
1469 | { |
|
|
1470 | dTHX; |
|
|
1471 | struct transfer_args ta; |
|
|
1472 | |
|
|
1473 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1474 | { |
|
|
1475 | TRANSFER (ta); |
|
|
1476 | return 1; |
|
|
1477 | } |
|
|
1478 | else |
|
|
1479 | return 0; |
|
|
1480 | } |
|
|
1481 | |
|
|
1482 | static void |
|
|
1483 | api_trace (SV *coro_sv, int flags) |
2076 | api_trace (pTHX_ SV *coro_sv, int flags) |
1484 | { |
2077 | { |
1485 | dTHX; |
|
|
1486 | struct coro *coro = SvSTATE (coro_sv); |
2078 | struct coro *coro = SvSTATE (coro_sv); |
1487 | |
2079 | |
|
|
2080 | if (coro->flags & CF_RUNNING) |
|
|
2081 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2082 | |
1488 | if (flags & CC_TRACE) |
2083 | if (flags & CC_TRACE) |
1489 | { |
2084 | { |
1490 | if (!coro->cctx) |
2085 | if (!coro->cctx) |
1491 | coro->cctx = cctx_new (); |
2086 | coro->cctx = cctx_new_run (); |
1492 | else if (!(coro->cctx->flags & CC_TRACE)) |
2087 | else if (!(coro->cctx->flags & CC_TRACE)) |
1493 | croak ("cannot enable tracing on coroutine with custom stack"); |
2088 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1494 | |
2089 | |
1495 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2090 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1496 | } |
2091 | } |
1497 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2092 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1498 | { |
2093 | { |
… | |
… | |
1503 | else |
2098 | else |
1504 | coro->slot->runops = RUNOPS_DEFAULT; |
2099 | coro->slot->runops = RUNOPS_DEFAULT; |
1505 | } |
2100 | } |
1506 | } |
2101 | } |
1507 | |
2102 | |
|
|
2103 | static void |
|
|
2104 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2105 | { |
|
|
2106 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2107 | { |
|
|
2108 | dSP; |
|
|
2109 | |
|
|
2110 | if (gimme_v == G_SCALAR) |
|
|
2111 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2112 | else |
|
|
2113 | { |
|
|
2114 | int i; |
|
|
2115 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2116 | |
|
|
2117 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2118 | PUSHs (AvARRAY (av)[i]); |
|
|
2119 | } |
|
|
2120 | |
|
|
2121 | PUTBACK; |
|
|
2122 | } |
|
|
2123 | } |
|
|
2124 | |
|
|
2125 | static void |
|
|
2126 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2127 | { |
|
|
2128 | if (!coro->on_destroy) |
|
|
2129 | coro->on_destroy = newAV (); |
|
|
2130 | |
|
|
2131 | av_push (coro->on_destroy, cb); |
|
|
2132 | } |
|
|
2133 | |
|
|
2134 | static void |
|
|
2135 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2136 | { |
|
|
2137 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2138 | } |
|
|
2139 | |
|
|
2140 | static int |
|
|
2141 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2142 | { |
|
|
2143 | struct coro *coro = (struct coro *)frame->data; |
|
|
2144 | |
|
|
2145 | if (!coro->status) |
|
|
2146 | return 1; |
|
|
2147 | |
|
|
2148 | frame->destroy = 0; |
|
|
2149 | |
|
|
2150 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2151 | |
|
|
2152 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2153 | |
|
|
2154 | return 0; |
|
|
2155 | } |
|
|
2156 | |
|
|
2157 | static void |
|
|
2158 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2159 | { |
|
|
2160 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2161 | |
|
|
2162 | if (items > 1) |
|
|
2163 | croak ("join called with too many arguments"); |
|
|
2164 | |
|
|
2165 | if (coro->status) |
|
|
2166 | frame->prepare = prepare_nop; |
|
|
2167 | else |
|
|
2168 | { |
|
|
2169 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2170 | frame->prepare = prepare_schedule; |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | frame->check = slf_check_join; |
|
|
2174 | frame->destroy = slf_destroy_join; |
|
|
2175 | frame->data = (void *)coro; |
|
|
2176 | SvREFCNT_inc (coro->hv); |
|
|
2177 | } |
|
|
2178 | |
|
|
2179 | static void |
|
|
2180 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2181 | { |
|
|
2182 | AV *od = coro->on_destroy; |
|
|
2183 | |
|
|
2184 | if (!od) |
|
|
2185 | return; |
|
|
2186 | |
|
|
2187 | coro->on_destroy = 0; |
|
|
2188 | sv_2mortal ((SV *)od); |
|
|
2189 | |
|
|
2190 | while (AvFILLp (od) >= 0) |
|
|
2191 | { |
|
|
2192 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2193 | |
|
|
2194 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2195 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2196 | api_ready (aTHX_ cb); |
|
|
2197 | else |
|
|
2198 | { |
|
|
2199 | dSP; /* don't disturb outer sp */ |
|
|
2200 | PUSHMARK (SP); |
|
|
2201 | |
|
|
2202 | if (coro->status) |
|
|
2203 | { |
|
|
2204 | PUTBACK; |
|
|
2205 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2206 | SPAGAIN; |
|
|
2207 | } |
|
|
2208 | |
|
|
2209 | PUTBACK; |
|
|
2210 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2211 | } |
|
|
2212 | } |
|
|
2213 | } |
|
|
2214 | |
|
|
2215 | static void |
|
|
2216 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2217 | { |
|
|
2218 | AV *av; |
|
|
2219 | |
|
|
2220 | if (coro->status) |
|
|
2221 | { |
|
|
2222 | av = coro->status; |
|
|
2223 | av_clear (av); |
|
|
2224 | } |
|
|
2225 | else |
|
|
2226 | av = coro->status = newAV (); |
|
|
2227 | |
|
|
2228 | /* items are actually not so common, so optimise for this case */ |
|
|
2229 | if (items) |
|
|
2230 | { |
|
|
2231 | int i; |
|
|
2232 | |
|
|
2233 | av_extend (av, items - 1); |
|
|
2234 | |
|
|
2235 | for (i = 0; i < items; ++i) |
|
|
2236 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2237 | } |
|
|
2238 | } |
|
|
2239 | |
|
|
2240 | static void |
|
|
2241 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2242 | { |
|
|
2243 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2244 | api_ready (aTHX_ sv_manager); |
|
|
2245 | |
|
|
2246 | frame->prepare = prepare_schedule; |
|
|
2247 | frame->check = slf_check_repeat; |
|
|
2248 | |
|
|
2249 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2250 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2251 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2252 | } |
|
|
2253 | |
|
|
2254 | static void |
|
|
2255 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2256 | { |
|
|
2257 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2258 | |
|
|
2259 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2260 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2261 | } |
|
|
2262 | |
|
|
2263 | static void |
|
|
2264 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2265 | { |
|
|
2266 | HV *coro_hv; |
|
|
2267 | struct coro *coro; |
|
|
2268 | |
|
|
2269 | if (items <= 0) |
|
|
2270 | croak ("Coro::cancel called without coro object,"); |
|
|
2271 | |
|
|
2272 | coro = SvSTATE (arg [0]); |
|
|
2273 | coro_hv = coro->hv; |
|
|
2274 | |
|
|
2275 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2276 | |
|
|
2277 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2278 | { |
|
|
2279 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2280 | coro->slf_frame.data = (void *)coro; |
|
|
2281 | |
|
|
2282 | frame->prepare = prepare_nop; |
|
|
2283 | frame->check = slf_check_nop; |
|
|
2284 | } |
|
|
2285 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2286 | { |
|
|
2287 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2288 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2289 | } |
|
|
2290 | else |
|
|
2291 | { |
|
|
2292 | struct coro *self = SvSTATE_current; |
|
|
2293 | |
|
|
2294 | if (!self) |
|
|
2295 | croak ("Coro::cancel called outside of thread content,"); |
|
|
2296 | |
|
|
2297 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2298 | * unfortunately, this requires some magic trickery, as |
|
|
2299 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2300 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2301 | * besides, I can't get the slow-but-safe version working... |
|
|
2302 | */ |
|
|
2303 | slf_frame.data = 0; |
|
|
2304 | self->flags |= CF_NOCANCEL; |
|
|
2305 | coro_state_destroy (aTHX_ coro); |
|
|
2306 | self->flags &= ~CF_NOCANCEL; |
|
|
2307 | |
|
|
2308 | if (slf_frame.data) |
|
|
2309 | { |
|
|
2310 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2311 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2312 | } |
|
|
2313 | else |
|
|
2314 | { |
|
|
2315 | frame->prepare = prepare_nop; |
|
|
2316 | frame->check = slf_check_nop; |
|
|
2317 | } |
|
|
2318 | } |
|
|
2319 | } |
|
|
2320 | |
|
|
2321 | static int |
|
|
2322 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2323 | { |
|
|
2324 | frame->prepare = 0; |
|
|
2325 | coro_unwind_stacks (aTHX); |
|
|
2326 | |
|
|
2327 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2328 | |
|
|
2329 | return 1; |
|
|
2330 | } |
|
|
2331 | |
|
|
2332 | static int |
|
|
2333 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2334 | { |
|
|
2335 | if (coro->cctx) |
|
|
2336 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2337 | |
|
|
2338 | if (coro->flags & CF_NEW) |
|
|
2339 | { |
|
|
2340 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2341 | coro_state_destroy (aTHX_ coro); |
|
|
2342 | } |
|
|
2343 | else |
|
|
2344 | { |
|
|
2345 | if (!coro->slf_frame.prepare) |
|
|
2346 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2347 | |
|
|
2348 | slf_destroy (aTHX_ coro); |
|
|
2349 | |
|
|
2350 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2351 | coro->slf_frame.prepare = prepare_nop; |
|
|
2352 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2353 | |
|
|
2354 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | return 1; |
|
|
2358 | } |
|
|
2359 | |
|
|
2360 | /*****************************************************************************/ |
|
|
2361 | /* async pool handler */ |
|
|
2362 | |
|
|
2363 | static int |
|
|
2364 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2365 | { |
|
|
2366 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2367 | struct coro *coro = (struct coro *)frame->data; |
|
|
2368 | |
|
|
2369 | if (!coro->invoke_cb) |
|
|
2370 | return 1; /* loop till we have invoke */ |
|
|
2371 | else |
|
|
2372 | { |
|
|
2373 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2374 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2375 | |
|
|
2376 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2377 | |
|
|
2378 | { |
|
|
2379 | dSP; |
|
|
2380 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2381 | PUTBACK; |
|
|
2382 | } |
|
|
2383 | |
|
|
2384 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2385 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2386 | coro->invoke_av = 0; |
|
|
2387 | |
|
|
2388 | return 0; |
|
|
2389 | } |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | static void |
|
|
2393 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2394 | { |
|
|
2395 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2396 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2397 | |
|
|
2398 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2399 | { |
|
|
2400 | /* subsequent iteration */ |
|
|
2401 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2402 | coro->saved_deffh = 0; |
|
|
2403 | |
|
|
2404 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2405 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2406 | { |
|
|
2407 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2408 | return; |
|
|
2409 | } |
|
|
2410 | else |
|
|
2411 | { |
|
|
2412 | av_clear (GvAV (PL_defgv)); |
|
|
2413 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2414 | |
|
|
2415 | coro->prio = 0; |
|
|
2416 | |
|
|
2417 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2418 | api_trace (aTHX_ coro_current, 0); |
|
|
2419 | |
|
|
2420 | frame->prepare = prepare_schedule; |
|
|
2421 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2422 | } |
|
|
2423 | } |
|
|
2424 | else |
|
|
2425 | { |
|
|
2426 | /* first iteration, simply fall through */ |
|
|
2427 | frame->prepare = prepare_nop; |
|
|
2428 | } |
|
|
2429 | |
|
|
2430 | frame->check = slf_check_pool_handler; |
|
|
2431 | frame->data = (void *)coro; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | /*****************************************************************************/ |
|
|
2435 | /* rouse callback */ |
|
|
2436 | |
|
|
2437 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2438 | |
|
|
2439 | static void |
|
|
2440 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2441 | { |
|
|
2442 | dXSARGS; |
|
|
2443 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2444 | |
|
|
2445 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2446 | { |
|
|
2447 | /* first call, set args */ |
|
|
2448 | SV *coro = SvRV (data); |
|
|
2449 | AV *av = newAV (); |
|
|
2450 | |
|
|
2451 | SvRV_set (data, (SV *)av); |
|
|
2452 | |
|
|
2453 | /* better take a full copy of the arguments */ |
|
|
2454 | while (items--) |
|
|
2455 | av_store (av, items, newSVsv (ST (items))); |
|
|
2456 | |
|
|
2457 | api_ready (aTHX_ coro); |
|
|
2458 | SvREFCNT_dec (coro); |
|
|
2459 | } |
|
|
2460 | |
|
|
2461 | XSRETURN_EMPTY; |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | static int |
|
|
2465 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2466 | { |
|
|
2467 | SV *data = (SV *)frame->data; |
|
|
2468 | |
|
|
2469 | if (CORO_THROW) |
|
|
2470 | return 0; |
|
|
2471 | |
|
|
2472 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2473 | return 1; |
|
|
2474 | |
|
|
2475 | /* now push all results on the stack */ |
|
|
2476 | { |
|
|
2477 | dSP; |
|
|
2478 | AV *av = (AV *)SvRV (data); |
|
|
2479 | int i; |
|
|
2480 | |
|
|
2481 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2482 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2483 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2484 | |
|
|
2485 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2486 | AvFILLp (av) = -1; |
|
|
2487 | av_undef (av); |
|
|
2488 | |
|
|
2489 | PUTBACK; |
|
|
2490 | } |
|
|
2491 | |
|
|
2492 | return 0; |
|
|
2493 | } |
|
|
2494 | |
|
|
2495 | static void |
|
|
2496 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2497 | { |
|
|
2498 | SV *cb; |
|
|
2499 | |
|
|
2500 | if (items) |
|
|
2501 | cb = arg [0]; |
|
|
2502 | else |
|
|
2503 | { |
|
|
2504 | struct coro *coro = SvSTATE_current; |
|
|
2505 | |
|
|
2506 | if (!coro->rouse_cb) |
|
|
2507 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2508 | |
|
|
2509 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2510 | coro->rouse_cb = 0; |
|
|
2511 | } |
|
|
2512 | |
|
|
2513 | if (!SvROK (cb) |
|
|
2514 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2515 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2516 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2517 | |
|
|
2518 | { |
|
|
2519 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2520 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2521 | |
|
|
2522 | frame->data = (void *)data; |
|
|
2523 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2524 | frame->check = slf_check_rouse_wait; |
|
|
2525 | } |
|
|
2526 | } |
|
|
2527 | |
|
|
2528 | static SV * |
|
|
2529 | coro_new_rouse_cb (pTHX) |
|
|
2530 | { |
|
|
2531 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2532 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2533 | SV *data = newRV_inc ((SV *)hv); |
|
|
2534 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2535 | |
|
|
2536 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2537 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2538 | |
|
|
2539 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2540 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2541 | |
|
|
2542 | return cb; |
|
|
2543 | } |
|
|
2544 | |
|
|
2545 | /*****************************************************************************/ |
|
|
2546 | /* schedule-like-function opcode (SLF) */ |
|
|
2547 | |
|
|
2548 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2549 | static const CV *slf_cv; |
|
|
2550 | static SV **slf_argv; |
|
|
2551 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2552 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2553 | |
|
|
2554 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2555 | /* recreate the stack frame as perl will on following calls */ |
|
|
2556 | /* since entersub cleared the stack */ |
|
|
2557 | static OP * |
|
|
2558 | pp_restore (pTHX) |
|
|
2559 | { |
|
|
2560 | int i; |
|
|
2561 | SV **SP = PL_stack_base + slf_ax; |
|
|
2562 | |
|
|
2563 | PUSHMARK (SP); |
|
|
2564 | |
|
|
2565 | EXTEND (SP, slf_argc + 1); |
|
|
2566 | |
|
|
2567 | for (i = 0; i < slf_argc; ++i) |
|
|
2568 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2569 | |
|
|
2570 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2571 | |
|
|
2572 | RETURNOP (slf_restore.op_first); |
|
|
2573 | } |
|
|
2574 | |
|
|
2575 | static void |
|
|
2576 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2577 | { |
|
|
2578 | SV **arg = (SV **)slf_frame.data; |
|
|
2579 | |
|
|
2580 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2581 | } |
|
|
2582 | |
|
|
2583 | static void |
|
|
2584 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2585 | { |
|
|
2586 | if (items != 2) |
|
|
2587 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2588 | |
|
|
2589 | frame->prepare = slf_prepare_transfer; |
|
|
2590 | frame->check = slf_check_nop; |
|
|
2591 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2592 | } |
|
|
2593 | |
|
|
2594 | static void |
|
|
2595 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2596 | { |
|
|
2597 | frame->prepare = prepare_schedule; |
|
|
2598 | frame->check = slf_check_nop; |
|
|
2599 | } |
|
|
2600 | |
|
|
2601 | static void |
|
|
2602 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2603 | { |
|
|
2604 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2605 | |
|
|
2606 | SvREFCNT_inc_NN (next->hv); |
|
|
2607 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2608 | } |
|
|
2609 | |
|
|
2610 | static void |
|
|
2611 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2612 | { |
|
|
2613 | if (!items) |
|
|
2614 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2615 | |
|
|
2616 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2617 | frame->prepare = slf_prepare_schedule_to; |
|
|
2618 | frame->check = slf_check_nop; |
|
|
2619 | } |
|
|
2620 | |
|
|
2621 | static void |
|
|
2622 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2623 | { |
|
|
2624 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2625 | |
|
|
2626 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2627 | } |
|
|
2628 | |
|
|
2629 | static void |
|
|
2630 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2631 | { |
|
|
2632 | frame->prepare = prepare_cede; |
|
|
2633 | frame->check = slf_check_nop; |
|
|
2634 | } |
|
|
2635 | |
|
|
2636 | static void |
|
|
2637 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2638 | { |
|
|
2639 | frame->prepare = prepare_cede_notself; |
|
|
2640 | frame->check = slf_check_nop; |
|
|
2641 | } |
|
|
2642 | |
|
|
2643 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2644 | static void |
|
|
2645 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2646 | { |
|
|
2647 | struct CoroSLF frame = coro->slf_frame; |
|
|
2648 | |
|
|
2649 | /* |
|
|
2650 | * The on_destroy below most likely is from an SLF call. |
|
|
2651 | * Since by definition the SLF call will not finish when we destroy |
|
|
2652 | * the coro, we will have to force-finish it here, otherwise |
|
|
2653 | * cleanup functions cannot call SLF functions. |
|
|
2654 | */ |
|
|
2655 | coro->slf_frame.prepare = 0; |
|
|
2656 | |
|
|
2657 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2658 | if (frame.destroy && frame.prepare && !PL_dirty) |
|
|
2659 | frame.destroy (aTHX_ &frame); |
|
|
2660 | } |
|
|
2661 | |
|
|
2662 | /* |
|
|
2663 | * these not obviously related functions are all rolled into one |
|
|
2664 | * function to increase chances that they all will call transfer with the same |
|
|
2665 | * stack offset |
|
|
2666 | * SLF stands for "schedule-like-function". |
|
|
2667 | */ |
|
|
2668 | static OP * |
|
|
2669 | pp_slf (pTHX) |
|
|
2670 | { |
|
|
2671 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2672 | |
|
|
2673 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2674 | /* the latter happens when a new coro has been started */ |
|
|
2675 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2676 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2677 | { |
|
|
2678 | /* first iteration */ |
|
|
2679 | dSP; |
|
|
2680 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2681 | int items = SP - arg; /* args without function object */ |
|
|
2682 | SV *gv = *sp; |
|
|
2683 | |
|
|
2684 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2685 | /* for us, divert to the real entersub */ |
|
|
2686 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2687 | || !GvCV (gv) |
|
|
2688 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2689 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2690 | |
|
|
2691 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2692 | { |
|
|
2693 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2694 | AV *av = GvAV (PL_defgv); |
|
|
2695 | arg = AvARRAY (av); |
|
|
2696 | items = AvFILLp (av) + 1; |
|
|
2697 | } |
|
|
2698 | |
|
|
2699 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2700 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2701 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2702 | |
|
|
2703 | /* pop args */ |
|
|
2704 | SP = PL_stack_base + POPMARK; |
|
|
2705 | |
|
|
2706 | PUTBACK; |
|
|
2707 | } |
|
|
2708 | |
|
|
2709 | /* now that we have a slf_frame, interpret it! */ |
|
|
2710 | /* we use a callback system not to make the code needlessly */ |
|
|
2711 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2712 | |
|
|
2713 | do |
|
|
2714 | { |
|
|
2715 | struct coro_transfer_args ta; |
|
|
2716 | |
|
|
2717 | slf_frame.prepare (aTHX_ &ta); |
|
|
2718 | TRANSFER (ta, 0); |
|
|
2719 | |
|
|
2720 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2721 | } |
|
|
2722 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2723 | |
|
|
2724 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2725 | |
|
|
2726 | /* exception handling */ |
|
|
2727 | if (ecb_expect_false (CORO_THROW)) |
|
|
2728 | { |
|
|
2729 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2730 | |
|
|
2731 | CORO_THROW = 0; |
|
|
2732 | sv_setsv (ERRSV, exception); |
|
|
2733 | croak (0); |
|
|
2734 | } |
|
|
2735 | |
|
|
2736 | /* return value handling - mostly like entersub */ |
|
|
2737 | /* make sure we put something on the stack in scalar context */ |
|
|
2738 | if (GIMME_V == G_SCALAR |
|
|
2739 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2740 | { |
|
|
2741 | dSP; |
|
|
2742 | SV **bot = PL_stack_base + checkmark; |
|
|
2743 | |
|
|
2744 | if (sp == bot) /* too few, push undef */ |
|
|
2745 | bot [1] = &PL_sv_undef; |
|
|
2746 | else /* too many, take last one */ |
|
|
2747 | bot [1] = *sp; |
|
|
2748 | |
|
|
2749 | SP = bot + 1; |
|
|
2750 | |
|
|
2751 | PUTBACK; |
|
|
2752 | } |
|
|
2753 | |
|
|
2754 | return NORMAL; |
|
|
2755 | } |
|
|
2756 | |
|
|
2757 | static void |
|
|
2758 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2759 | { |
|
|
2760 | int i; |
|
|
2761 | SV **arg = PL_stack_base + ax; |
|
|
2762 | int items = PL_stack_sp - arg + 1; |
|
|
2763 | |
|
|
2764 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2765 | |
|
|
2766 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2767 | && PL_op->op_ppaddr != pp_slf) |
|
|
2768 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2769 | |
|
|
2770 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2771 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2772 | slf_cv = cv; |
|
|
2773 | |
|
|
2774 | /* we patch the op, and then re-run the whole call */ |
|
|
2775 | /* we have to put the same argument on the stack for this to work */ |
|
|
2776 | /* and this will be done by pp_restore */ |
|
|
2777 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2778 | slf_restore.op_type = OP_CUSTOM; |
|
|
2779 | slf_restore.op_ppaddr = pp_restore; |
|
|
2780 | slf_restore.op_first = PL_op; |
|
|
2781 | |
|
|
2782 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2783 | |
|
|
2784 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2785 | { |
|
|
2786 | if (items > slf_arga) |
|
|
2787 | { |
|
|
2788 | slf_arga = items; |
|
|
2789 | Safefree (slf_argv); |
|
|
2790 | New (0, slf_argv, slf_arga, SV *); |
|
|
2791 | } |
|
|
2792 | |
|
|
2793 | slf_argc = items; |
|
|
2794 | |
|
|
2795 | for (i = 0; i < items; ++i) |
|
|
2796 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2797 | } |
|
|
2798 | else |
|
|
2799 | slf_argc = 0; |
|
|
2800 | |
|
|
2801 | PL_op->op_ppaddr = pp_slf; |
|
|
2802 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2803 | |
|
|
2804 | PL_op = (OP *)&slf_restore; |
|
|
2805 | } |
|
|
2806 | |
|
|
2807 | /*****************************************************************************/ |
|
|
2808 | /* dynamic wind */ |
|
|
2809 | |
|
|
2810 | static void |
|
|
2811 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2812 | { |
|
|
2813 | dSP; |
|
|
2814 | |
|
|
2815 | PUSHSTACK; |
|
|
2816 | |
|
|
2817 | PUSHMARK (SP); |
|
|
2818 | PUTBACK; |
|
|
2819 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2820 | SPAGAIN; |
|
|
2821 | |
|
|
2822 | POPSTACK; |
|
|
2823 | } |
|
|
2824 | |
|
|
2825 | static SV * |
|
|
2826 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2827 | { |
|
|
2828 | AV *av = *avp; |
|
|
2829 | SV *res = av_pop (av); |
|
|
2830 | |
|
|
2831 | if (AvFILLp (av) < 0) |
|
|
2832 | { |
|
|
2833 | *avp = 0; |
|
|
2834 | SvREFCNT_dec (av); |
|
|
2835 | } |
|
|
2836 | |
|
|
2837 | return res; |
|
|
2838 | } |
|
|
2839 | |
|
|
2840 | static void |
|
|
2841 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2842 | { |
|
|
2843 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2844 | SvREFCNT_dec (cb); |
|
|
2845 | } |
|
|
2846 | |
|
|
2847 | static void |
|
|
2848 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2849 | { |
|
|
2850 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2851 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2852 | } |
|
|
2853 | |
|
|
2854 | static void |
|
|
2855 | enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg) |
|
|
2856 | { |
|
|
2857 | if (!hook) |
|
|
2858 | return; |
|
|
2859 | |
|
|
2860 | if (!*avp) |
|
|
2861 | { |
|
|
2862 | *avp = newAV (); |
|
|
2863 | AvREAL_off (*avp); |
|
|
2864 | } |
|
|
2865 | |
|
|
2866 | av_push (*avp, (SV *)hook); |
|
|
2867 | av_push (*avp, (SV *)arg); |
|
|
2868 | } |
|
|
2869 | |
|
|
2870 | static void |
|
|
2871 | enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute) |
|
|
2872 | { |
|
|
2873 | AV *av = *avp; |
|
|
2874 | int i; |
|
|
2875 | |
|
|
2876 | if (!av) |
|
|
2877 | return; |
|
|
2878 | |
|
|
2879 | for (i = AvFILLp (av) - 1; i >= 0; i -= 2) |
|
|
2880 | if (AvARRAY (av)[i] == (SV *)hook) |
|
|
2881 | { |
|
|
2882 | if (execute) |
|
|
2883 | hook ((void *)AvARRAY (av)[i + 1]); |
|
|
2884 | |
|
|
2885 | memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1); |
|
|
2886 | av_pop (av); |
|
|
2887 | av_pop (av); |
|
|
2888 | break; |
|
|
2889 | } |
|
|
2890 | |
|
|
2891 | if (AvFILLp (av) >= 0) |
|
|
2892 | { |
|
|
2893 | *avp = 0; |
|
|
2894 | SvREFCNT_dec_NN (av); |
|
|
2895 | } |
|
|
2896 | } |
|
|
2897 | |
|
|
2898 | static void |
|
|
2899 | api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2900 | { |
|
|
2901 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2902 | |
|
|
2903 | if (SvSTATE_current == coro) |
|
|
2904 | if (enter) |
|
|
2905 | enter (aTHX enter_arg); |
|
|
2906 | |
|
|
2907 | enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg); |
|
|
2908 | enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg); |
|
|
2909 | } |
|
|
2910 | |
|
|
2911 | static void |
|
|
2912 | api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave) |
|
|
2913 | { |
|
|
2914 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2915 | |
|
|
2916 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2917 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro); |
|
|
2918 | } |
|
|
2919 | |
|
|
2920 | static void |
|
|
2921 | savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter) |
|
|
2922 | { |
|
|
2923 | struct coro *coro = SvSTATE_current; |
|
|
2924 | |
|
|
2925 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2926 | } |
|
|
2927 | |
|
|
2928 | static void |
|
|
2929 | savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave) |
|
|
2930 | { |
|
|
2931 | struct coro *coro = SvSTATE_current; |
|
|
2932 | |
|
|
2933 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1); |
|
|
2934 | } |
|
|
2935 | |
|
|
2936 | static void |
|
|
2937 | api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2938 | { |
|
|
2939 | api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg); |
|
|
2940 | |
|
|
2941 | /* this ought to be much cheaper than malloc + a single destructor call */ |
|
|
2942 | if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter); |
|
|
2943 | if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave); |
|
|
2944 | } |
|
|
2945 | |
|
|
2946 | /*****************************************************************************/ |
|
|
2947 | /* PerlIO::cede */ |
|
|
2948 | |
|
|
2949 | typedef struct |
|
|
2950 | { |
|
|
2951 | PerlIOBuf base; |
|
|
2952 | NV next, every; |
|
|
2953 | } PerlIOCede; |
|
|
2954 | |
|
|
2955 | static IV ecb_cold |
|
|
2956 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2957 | { |
|
|
2958 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2959 | |
|
|
2960 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2961 | self->next = nvtime () + self->every; |
|
|
2962 | |
|
|
2963 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2964 | } |
|
|
2965 | |
|
|
2966 | static SV * ecb_cold |
|
|
2967 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2968 | { |
|
|
2969 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2970 | |
|
|
2971 | return newSVnv (self->every); |
|
|
2972 | } |
|
|
2973 | |
|
|
2974 | static IV |
|
|
2975 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2976 | { |
|
|
2977 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2978 | double now = nvtime (); |
|
|
2979 | |
|
|
2980 | if (now >= self->next) |
|
|
2981 | { |
|
|
2982 | api_cede (aTHX); |
|
|
2983 | self->next = now + self->every; |
|
|
2984 | } |
|
|
2985 | |
|
|
2986 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2987 | } |
|
|
2988 | |
|
|
2989 | static PerlIO_funcs PerlIO_cede = |
|
|
2990 | { |
|
|
2991 | sizeof(PerlIO_funcs), |
|
|
2992 | "cede", |
|
|
2993 | sizeof(PerlIOCede), |
|
|
2994 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2995 | PerlIOCede_pushed, |
|
|
2996 | PerlIOBuf_popped, |
|
|
2997 | PerlIOBuf_open, |
|
|
2998 | PerlIOBase_binmode, |
|
|
2999 | PerlIOCede_getarg, |
|
|
3000 | PerlIOBase_fileno, |
|
|
3001 | PerlIOBuf_dup, |
|
|
3002 | PerlIOBuf_read, |
|
|
3003 | PerlIOBuf_unread, |
|
|
3004 | PerlIOBuf_write, |
|
|
3005 | PerlIOBuf_seek, |
|
|
3006 | PerlIOBuf_tell, |
|
|
3007 | PerlIOBuf_close, |
|
|
3008 | PerlIOCede_flush, |
|
|
3009 | PerlIOBuf_fill, |
|
|
3010 | PerlIOBase_eof, |
|
|
3011 | PerlIOBase_error, |
|
|
3012 | PerlIOBase_clearerr, |
|
|
3013 | PerlIOBase_setlinebuf, |
|
|
3014 | PerlIOBuf_get_base, |
|
|
3015 | PerlIOBuf_bufsiz, |
|
|
3016 | PerlIOBuf_get_ptr, |
|
|
3017 | PerlIOBuf_get_cnt, |
|
|
3018 | PerlIOBuf_set_ptrcnt, |
|
|
3019 | }; |
|
|
3020 | |
|
|
3021 | /*****************************************************************************/ |
|
|
3022 | /* Coro::Semaphore & Coro::Signal */ |
|
|
3023 | |
|
|
3024 | static SV * |
|
|
3025 | coro_waitarray_new (pTHX_ int count) |
|
|
3026 | { |
|
|
3027 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
3028 | AV *av = newAV (); |
|
|
3029 | SV **ary; |
|
|
3030 | |
|
|
3031 | /* unfortunately, building manually saves memory */ |
|
|
3032 | Newx (ary, 2, SV *); |
|
|
3033 | AvALLOC (av) = ary; |
|
|
3034 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
3035 | AvARRAY (av) = ary; |
|
|
3036 | #else |
|
|
3037 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
3038 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
3039 | SvPVX ((SV *)av) = (char *)ary; |
|
|
3040 | #endif |
|
|
3041 | AvMAX (av) = 1; |
|
|
3042 | AvFILLp (av) = 0; |
|
|
3043 | ary [0] = newSViv (count); |
|
|
3044 | |
|
|
3045 | return newRV_noinc ((SV *)av); |
|
|
3046 | } |
|
|
3047 | |
|
|
3048 | /* semaphore */ |
|
|
3049 | |
|
|
3050 | static void |
|
|
3051 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
3052 | { |
|
|
3053 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3054 | IV count = SvIVX (count_sv); |
|
|
3055 | |
|
|
3056 | count += adjust; |
|
|
3057 | SvIVX (count_sv) = count; |
|
|
3058 | |
|
|
3059 | /* now wake up as many waiters as are expected to lock */ |
|
|
3060 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3061 | { |
|
|
3062 | SV *cb; |
|
|
3063 | |
|
|
3064 | /* swap first two elements so we can shift a waiter */ |
|
|
3065 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3066 | AvARRAY (av)[1] = count_sv; |
|
|
3067 | cb = av_shift (av); |
|
|
3068 | |
|
|
3069 | if (SvOBJECT (cb)) |
|
|
3070 | { |
|
|
3071 | api_ready (aTHX_ cb); |
|
|
3072 | --count; |
|
|
3073 | } |
|
|
3074 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
3075 | { |
|
|
3076 | dSP; |
|
|
3077 | PUSHMARK (SP); |
|
|
3078 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3079 | PUTBACK; |
|
|
3080 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3081 | } |
|
|
3082 | |
|
|
3083 | SvREFCNT_dec_NN (cb); |
|
|
3084 | } |
|
|
3085 | } |
|
|
3086 | |
|
|
3087 | static void |
|
|
3088 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
3089 | { |
|
|
3090 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
3091 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
3092 | } |
|
|
3093 | |
|
|
3094 | static int |
|
|
3095 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
3096 | { |
|
|
3097 | AV *av = (AV *)frame->data; |
|
|
3098 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3099 | SV *coro_hv = SvRV (coro_current); |
|
|
3100 | |
|
|
3101 | frame->destroy = 0; |
|
|
3102 | |
|
|
3103 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
3104 | if (ecb_expect_false (CORO_THROW)) |
|
|
3105 | { |
|
|
3106 | /* we still might be responsible for the semaphore, so wake up others */ |
|
|
3107 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3108 | |
|
|
3109 | return 0; |
|
|
3110 | } |
|
|
3111 | else if (SvIVX (count_sv) > 0) |
|
|
3112 | { |
|
|
3113 | if (acquire) |
|
|
3114 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
3115 | else |
|
|
3116 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3117 | |
|
|
3118 | return 0; |
|
|
3119 | } |
|
|
3120 | else |
|
|
3121 | { |
|
|
3122 | int i; |
|
|
3123 | /* if we were woken up but can't down, we look through the whole */ |
|
|
3124 | /* waiters list and only add us if we aren't in there already */ |
|
|
3125 | /* this avoids some degenerate memory usage cases */ |
|
|
3126 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
3127 | if (AvARRAY (av)[i] == coro_hv) |
|
|
3128 | return 1; |
|
|
3129 | |
|
|
3130 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
3131 | return 1; |
|
|
3132 | } |
|
|
3133 | } |
|
|
3134 | |
|
|
3135 | static int |
|
|
3136 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
3137 | { |
|
|
3138 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
3139 | } |
|
|
3140 | |
|
|
3141 | static int |
|
|
3142 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3143 | { |
|
|
3144 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3145 | } |
|
|
3146 | |
|
|
3147 | static void |
|
|
3148 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3149 | { |
|
|
3150 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3151 | |
|
|
3152 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3153 | { |
|
|
3154 | frame->data = (void *)av; |
|
|
3155 | frame->prepare = prepare_nop; |
|
|
3156 | } |
|
|
3157 | else |
|
|
3158 | { |
|
|
3159 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3160 | |
|
|
3161 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3162 | frame->prepare = prepare_schedule; |
|
|
3163 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3164 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3165 | frame->destroy = coro_semaphore_destroy; |
|
|
3166 | } |
|
|
3167 | } |
|
|
3168 | |
|
|
3169 | static void |
|
|
3170 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3171 | { |
|
|
3172 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3173 | frame->check = slf_check_semaphore_down; |
|
|
3174 | } |
|
|
3175 | |
|
|
3176 | static void |
|
|
3177 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3178 | { |
|
|
3179 | if (items >= 2) |
|
|
3180 | { |
|
|
3181 | /* callback form */ |
|
|
3182 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3183 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3184 | |
|
|
3185 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3186 | |
|
|
3187 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3188 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3189 | |
|
|
3190 | frame->prepare = prepare_nop; |
|
|
3191 | frame->check = slf_check_nop; |
|
|
3192 | } |
|
|
3193 | else |
|
|
3194 | { |
|
|
3195 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3196 | frame->check = slf_check_semaphore_wait; |
|
|
3197 | } |
|
|
3198 | } |
|
|
3199 | |
|
|
3200 | /* signal */ |
|
|
3201 | |
|
|
3202 | static void |
|
|
3203 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3204 | { |
|
|
3205 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3206 | |
|
|
3207 | /* now signal count waiters */ |
|
|
3208 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3209 | { |
|
|
3210 | SV *cb; |
|
|
3211 | |
|
|
3212 | /* swap first two elements so we can shift a waiter */ |
|
|
3213 | cb = AvARRAY (av)[0]; |
|
|
3214 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3215 | AvARRAY (av)[1] = cb; |
|
|
3216 | |
|
|
3217 | cb = av_shift (av); |
|
|
3218 | |
|
|
3219 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3220 | { |
|
|
3221 | dSP; |
|
|
3222 | PUSHMARK (SP); |
|
|
3223 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3224 | PUTBACK; |
|
|
3225 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3226 | } |
|
|
3227 | else |
|
|
3228 | { |
|
|
3229 | api_ready (aTHX_ cb); |
|
|
3230 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3231 | } |
|
|
3232 | |
|
|
3233 | SvREFCNT_dec_NN (cb); |
|
|
3234 | |
|
|
3235 | --count; |
|
|
3236 | } |
|
|
3237 | } |
|
|
3238 | |
|
|
3239 | static int |
|
|
3240 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3241 | { |
|
|
3242 | /* if we are about to throw, also stop waiting */ |
|
|
3243 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3244 | } |
|
|
3245 | |
|
|
3246 | static void |
|
|
3247 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3248 | { |
|
|
3249 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3250 | |
|
|
3251 | if (items >= 2) |
|
|
3252 | { |
|
|
3253 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3254 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3255 | |
|
|
3256 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3257 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3258 | |
|
|
3259 | frame->prepare = prepare_nop; |
|
|
3260 | frame->check = slf_check_nop; |
|
|
3261 | } |
|
|
3262 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3263 | { |
|
|
3264 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3265 | frame->prepare = prepare_nop; |
|
|
3266 | frame->check = slf_check_nop; |
|
|
3267 | } |
|
|
3268 | else |
|
|
3269 | { |
|
|
3270 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3271 | |
|
|
3272 | av_push (av, waiter); |
|
|
3273 | |
|
|
3274 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3275 | frame->prepare = prepare_schedule; |
|
|
3276 | frame->check = slf_check_signal_wait; |
|
|
3277 | } |
|
|
3278 | } |
|
|
3279 | |
|
|
3280 | /*****************************************************************************/ |
|
|
3281 | /* Coro::AIO */ |
|
|
3282 | |
|
|
3283 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3284 | |
|
|
3285 | /* helper storage struct */ |
|
|
3286 | struct io_state |
|
|
3287 | { |
|
|
3288 | int errorno; |
|
|
3289 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3290 | int laststatval; |
|
|
3291 | Stat_t statcache; |
|
|
3292 | }; |
|
|
3293 | |
|
|
3294 | static void |
|
|
3295 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3296 | { |
|
|
3297 | dXSARGS; |
|
|
3298 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3299 | SV *coro = av_pop (state); |
|
|
3300 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3301 | |
|
|
3302 | av_extend (state, items - 1); |
|
|
3303 | |
|
|
3304 | sv_upgrade (data_sv, SVt_PV); |
|
|
3305 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3306 | SvPOK_only (data_sv); |
|
|
3307 | |
|
|
3308 | { |
|
|
3309 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3310 | |
|
|
3311 | data->errorno = errno; |
|
|
3312 | data->laststype = PL_laststype; |
|
|
3313 | data->laststatval = PL_laststatval; |
|
|
3314 | data->statcache = PL_statcache; |
|
|
3315 | } |
|
|
3316 | |
|
|
3317 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3318 | { |
|
|
3319 | int i; |
|
|
3320 | |
|
|
3321 | for (i = 0; i < items; ++i) |
|
|
3322 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3323 | } |
|
|
3324 | |
|
|
3325 | av_push (state, data_sv); |
|
|
3326 | |
|
|
3327 | api_ready (aTHX_ coro); |
|
|
3328 | SvREFCNT_dec_NN (coro); |
|
|
3329 | SvREFCNT_dec_NN ((AV *)state); |
|
|
3330 | } |
|
|
3331 | |
|
|
3332 | static int |
|
|
3333 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3334 | { |
|
|
3335 | AV *state = (AV *)frame->data; |
|
|
3336 | |
|
|
3337 | /* if we are about to throw, return early */ |
|
|
3338 | /* this does not cancel the aio request, but at least */ |
|
|
3339 | /* it quickly returns */ |
|
|
3340 | if (CORO_THROW) |
|
|
3341 | return 0; |
|
|
3342 | |
|
|
3343 | /* one element that is an RV? repeat! */ |
|
|
3344 | if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV) |
|
|
3345 | return 1; |
|
|
3346 | |
|
|
3347 | /* restore status */ |
|
|
3348 | { |
|
|
3349 | SV *data_sv = av_pop (state); |
|
|
3350 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3351 | |
|
|
3352 | errno = data->errorno; |
|
|
3353 | PL_laststype = data->laststype; |
|
|
3354 | PL_laststatval = data->laststatval; |
|
|
3355 | PL_statcache = data->statcache; |
|
|
3356 | |
|
|
3357 | SvREFCNT_dec_NN (data_sv); |
|
|
3358 | } |
|
|
3359 | |
|
|
3360 | /* push result values */ |
|
|
3361 | { |
|
|
3362 | dSP; |
|
|
3363 | int i; |
|
|
3364 | |
|
|
3365 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3366 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3367 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3368 | |
|
|
3369 | PUTBACK; |
|
|
3370 | } |
|
|
3371 | |
|
|
3372 | return 0; |
|
|
3373 | } |
|
|
3374 | |
|
|
3375 | static void |
|
|
3376 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3377 | { |
|
|
3378 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3379 | SV *coro_hv = SvRV (coro_current); |
|
|
3380 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3381 | |
|
|
3382 | /* put our coroutine id on the state arg */ |
|
|
3383 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3384 | |
|
|
3385 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3386 | if (coro->prio) |
|
|
3387 | { |
|
|
3388 | dSP; |
|
|
3389 | |
|
|
3390 | static SV *prio_cv; |
|
|
3391 | static SV *prio_sv; |
|
|
3392 | |
|
|
3393 | if (ecb_expect_false (!prio_cv)) |
|
|
3394 | { |
|
|
3395 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3396 | prio_sv = newSViv (0); |
|
|
3397 | } |
|
|
3398 | |
|
|
3399 | PUSHMARK (SP); |
|
|
3400 | sv_setiv (prio_sv, coro->prio); |
|
|
3401 | XPUSHs (prio_sv); |
|
|
3402 | |
|
|
3403 | PUTBACK; |
|
|
3404 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3405 | } |
|
|
3406 | |
|
|
3407 | /* now call the original request */ |
|
|
3408 | { |
|
|
3409 | dSP; |
|
|
3410 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3411 | int i; |
|
|
3412 | |
|
|
3413 | PUSHMARK (SP); |
|
|
3414 | |
|
|
3415 | /* first push all args to the stack */ |
|
|
3416 | EXTEND (SP, items + 1); |
|
|
3417 | |
|
|
3418 | for (i = 0; i < items; ++i) |
|
|
3419 | PUSHs (arg [i]); |
|
|
3420 | |
|
|
3421 | /* now push the callback closure */ |
|
|
3422 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3423 | |
|
|
3424 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3425 | PUTBACK; |
|
|
3426 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3427 | } |
|
|
3428 | |
|
|
3429 | /* now that the request is going, we loop till we have a result */ |
|
|
3430 | frame->data = (void *)state; |
|
|
3431 | frame->prepare = prepare_schedule; |
|
|
3432 | frame->check = slf_check_aio_req; |
|
|
3433 | } |
|
|
3434 | |
|
|
3435 | static void |
|
|
3436 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3437 | { |
|
|
3438 | dXSARGS; |
|
|
3439 | |
|
|
3440 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3441 | |
|
|
3442 | XSRETURN_EMPTY; |
|
|
3443 | } |
|
|
3444 | |
|
|
3445 | /*****************************************************************************/ |
|
|
3446 | |
|
|
3447 | #if CORO_CLONE |
|
|
3448 | # include "clone.c" |
|
|
3449 | #endif |
|
|
3450 | |
|
|
3451 | /*****************************************************************************/ |
|
|
3452 | |
|
|
3453 | static SV * |
|
|
3454 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3455 | { |
|
|
3456 | SV *coro_sv; |
|
|
3457 | struct coro *coro; |
|
|
3458 | MAGIC *mg; |
|
|
3459 | HV *hv; |
|
|
3460 | SV *cb; |
|
|
3461 | int i; |
|
|
3462 | |
|
|
3463 | if (argc > 0) |
|
|
3464 | { |
|
|
3465 | cb = s_get_cv_croak (argv [0]); |
|
|
3466 | |
|
|
3467 | if (!is_coro) |
|
|
3468 | { |
|
|
3469 | if (CvISXSUB (cb)) |
|
|
3470 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3471 | |
|
|
3472 | if (!CvROOT (cb)) |
|
|
3473 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3474 | } |
|
|
3475 | } |
|
|
3476 | |
|
|
3477 | Newz (0, coro, 1, struct coro); |
|
|
3478 | coro->args = newAV (); |
|
|
3479 | coro->flags = CF_NEW; |
|
|
3480 | |
|
|
3481 | if (coro_first) coro_first->prev = coro; |
|
|
3482 | coro->next = coro_first; |
|
|
3483 | coro_first = coro; |
|
|
3484 | |
|
|
3485 | coro->hv = hv = newHV (); |
|
|
3486 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3487 | mg->mg_flags |= MGf_DUP; |
|
|
3488 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3489 | |
|
|
3490 | if (argc > 0) |
|
|
3491 | { |
|
|
3492 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3493 | |
|
|
3494 | if (is_coro) |
|
|
3495 | { |
|
|
3496 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3497 | cb = (SV *)cv_coro_run; |
|
|
3498 | } |
|
|
3499 | |
|
|
3500 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3501 | |
|
|
3502 | for (i = 1; i < argc; i++) |
|
|
3503 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3504 | } |
|
|
3505 | |
|
|
3506 | return coro_sv; |
|
|
3507 | } |
|
|
3508 | |
|
|
3509 | #ifndef __cplusplus |
|
|
3510 | ecb_cold XS(boot_Coro__State); |
|
|
3511 | #endif |
|
|
3512 | |
|
|
3513 | #if CORO_JIT |
|
|
3514 | |
|
|
3515 | static void ecb_noinline ecb_cold |
|
|
3516 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3517 | { |
|
|
3518 | dSP; |
|
|
3519 | AV *av = newAV (); |
|
|
3520 | |
|
|
3521 | av_store (av, 3, newSVuv (d)); |
|
|
3522 | av_store (av, 2, newSVuv (c)); |
|
|
3523 | av_store (av, 1, newSVuv (b)); |
|
|
3524 | av_store (av, 0, newSVuv (a)); |
|
|
3525 | |
|
|
3526 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3527 | |
|
|
3528 | PUTBACK; |
|
|
3529 | } |
|
|
3530 | |
|
|
3531 | static void ecb_noinline ecb_cold |
|
|
3532 | jit_init (pTHX) |
|
|
3533 | { |
|
|
3534 | dSP; |
|
|
3535 | SV *load, *save; |
|
|
3536 | char *map_base; |
|
|
3537 | char *load_ptr, *save_ptr; |
|
|
3538 | STRLEN load_len, save_len, map_len; |
|
|
3539 | int count; |
|
|
3540 | |
|
|
3541 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3542 | |
|
|
3543 | PUSHMARK (SP); |
|
|
3544 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3545 | #include "state.h" |
|
|
3546 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3547 | SPAGAIN; |
|
|
3548 | |
|
|
3549 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3550 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3551 | |
|
|
3552 | map_len = load_len + save_len + 16; |
|
|
3553 | |
|
|
3554 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3555 | |
|
|
3556 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3557 | |
|
|
3558 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3559 | memcpy (map_base, load_ptr, load_len); |
|
|
3560 | |
|
|
3561 | map_base += (load_len + 15) & ~15; |
|
|
3562 | |
|
|
3563 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3564 | memcpy (map_base, save_ptr, save_len); |
|
|
3565 | |
|
|
3566 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3567 | /* hackers might have it a bit more difficult */ |
|
|
3568 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3569 | |
|
|
3570 | PUTBACK; |
|
|
3571 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3572 | } |
|
|
3573 | |
|
|
3574 | #endif |
|
|
3575 | |
1508 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3576 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1509 | |
3577 | |
1510 | PROTOTYPES: DISABLE |
3578 | PROTOTYPES: DISABLE |
1511 | |
3579 | |
1512 | BOOT: |
3580 | BOOT: |
1513 | { |
3581 | { |
|
|
3582 | #define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl."); |
|
|
3583 | #include "state.h" |
1514 | #ifdef USE_ITHREADS |
3584 | #ifdef USE_ITHREADS |
1515 | MUTEX_INIT (&coro_mutex); |
3585 | # if CORO_PTHREAD |
|
|
3586 | coro_thx = PERL_GET_CONTEXT; |
1516 | #endif |
3587 | # endif |
1517 | BOOT_PAGESIZE; |
3588 | #endif |
|
|
3589 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3590 | /* just create them one at init time is not clear to me, except for */ |
|
|
3591 | /* programs trying to delete them, but... */ |
|
|
3592 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3593 | DEFSV; |
|
|
3594 | ERRSV; |
|
|
3595 | |
|
|
3596 | cctx_current = cctx_new_empty (); |
1518 | |
3597 | |
1519 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3598 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1520 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3599 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1521 | |
3600 | |
|
|
3601 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
3602 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
3603 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
3604 | |
1522 | hv_sig = coro_get_hv ("SIG", TRUE); |
3605 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
1523 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
3606 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
1524 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
3607 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1525 | |
|
|
1526 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1527 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1528 | |
3608 | |
1529 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3609 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1530 | |
3610 | |
1531 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
3611 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1532 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
3612 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1537 | main_top_env = PL_top_env; |
3617 | main_top_env = PL_top_env; |
1538 | |
3618 | |
1539 | while (main_top_env->je_prev) |
3619 | while (main_top_env->je_prev) |
1540 | main_top_env = main_top_env->je_prev; |
3620 | main_top_env = main_top_env->je_prev; |
1541 | |
3621 | |
|
|
3622 | { |
|
|
3623 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3624 | |
|
|
3625 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3626 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3627 | |
|
|
3628 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3629 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3630 | } |
|
|
3631 | |
1542 | coroapi.ver = CORO_API_VERSION; |
3632 | coroapi.ver = CORO_API_VERSION; |
|
|
3633 | coroapi.rev = CORO_API_REVISION; |
|
|
3634 | |
1543 | coroapi.transfer = api_transfer; |
3635 | coroapi.transfer = api_transfer; |
1544 | |
3636 | |
|
|
3637 | coroapi.sv_state = SvSTATE_; |
|
|
3638 | coroapi.execute_slf = api_execute_slf; |
|
|
3639 | coroapi.prepare_nop = prepare_nop; |
|
|
3640 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3641 | coroapi.prepare_cede = prepare_cede; |
|
|
3642 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3643 | |
|
|
3644 | time_init (aTHX); |
|
|
3645 | |
1545 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3646 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3647 | #if CORO_JIT |
|
|
3648 | PUTBACK; |
|
|
3649 | jit_init (aTHX); |
|
|
3650 | SPAGAIN; |
|
|
3651 | #endif |
1546 | } |
3652 | } |
1547 | |
3653 | |
1548 | SV * |
3654 | SV * |
1549 | new (char *klass, ...) |
3655 | new (SV *klass, ...) |
|
|
3656 | ALIAS: |
|
|
3657 | Coro::new = 1 |
1550 | CODE: |
3658 | CODE: |
1551 | { |
3659 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1552 | struct coro *coro; |
|
|
1553 | HV *hv; |
|
|
1554 | int i; |
|
|
1555 | |
|
|
1556 | Newz (0, coro, 1, struct coro); |
|
|
1557 | coro->args = newAV (); |
|
|
1558 | coro->flags = CF_NEW; |
|
|
1559 | |
|
|
1560 | if (coro_first) coro_first->prev = coro; |
|
|
1561 | coro->next = coro_first; |
|
|
1562 | coro_first = coro; |
|
|
1563 | |
|
|
1564 | coro->hv = hv = newHV (); |
|
|
1565 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1566 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1567 | |
|
|
1568 | av_extend (coro->args, items - 1); |
|
|
1569 | for (i = 1; i < items; i++) |
|
|
1570 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1571 | } |
|
|
1572 | OUTPUT: |
|
|
1573 | RETVAL |
|
|
1574 | |
|
|
1575 | # these not obviously related functions are all rolled into the same xs |
|
|
1576 | # function to increase chances that they all will call transfer with the same |
|
|
1577 | # stack offset |
|
|
1578 | void |
|
|
1579 | _set_stacklevel (...) |
|
|
1580 | ALIAS: |
|
|
1581 | Coro::State::transfer = 1 |
|
|
1582 | Coro::schedule = 2 |
|
|
1583 | Coro::cede = 3 |
|
|
1584 | Coro::cede_notself = 4 |
|
|
1585 | Coro::Event::next = 5 |
|
|
1586 | Coro::Event::next_cancel = 6 |
|
|
1587 | PPCODE: |
|
|
1588 | { |
|
|
1589 | struct transfer_args ta; |
|
|
1590 | int again = 0; |
|
|
1591 | |
|
|
1592 | do |
|
|
1593 | { |
|
|
1594 | switch (ix) |
|
|
1595 | { |
|
|
1596 | case 0: |
|
|
1597 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1598 | ta.next = 0; |
|
|
1599 | break; |
|
|
1600 | |
|
|
1601 | case 1: |
|
|
1602 | if (items != 2) |
|
|
1603 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1604 | |
|
|
1605 | prepare_transfer (aTHX_ &ta, ST(0), ST(1)); |
|
|
1606 | break; |
|
|
1607 | |
|
|
1608 | case 2: |
|
|
1609 | prepare_schedule (aTHX_ &ta); |
|
|
1610 | break; |
|
|
1611 | |
|
|
1612 | case 3: |
|
|
1613 | prepare_cede (aTHX_ &ta); |
|
|
1614 | break; |
|
|
1615 | |
|
|
1616 | case 4: |
|
|
1617 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1618 | XSRETURN_EMPTY; |
|
|
1619 | |
|
|
1620 | break; |
|
|
1621 | |
|
|
1622 | case 5: |
|
|
1623 | case 6: |
|
|
1624 | if (items != 1) |
|
|
1625 | croak ("Coro::Event::next (watcher) expects one argument, not %d", items); |
|
|
1626 | |
|
|
1627 | { |
|
|
1628 | SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID); |
|
|
1629 | |
|
|
1630 | if (ev) |
|
|
1631 | { |
|
|
1632 | if (GIMME_V != G_VOID) |
|
|
1633 | { |
|
|
1634 | XPUSHs (ev); |
|
|
1635 | XSRETURN (1); |
|
|
1636 | } |
|
|
1637 | else |
|
|
1638 | XSRETURN_EMPTY; |
|
|
1639 | } |
|
|
1640 | } |
|
|
1641 | |
|
|
1642 | prepare_schedule (aTHX_ &ta); |
|
|
1643 | again = 1; |
|
|
1644 | break; |
|
|
1645 | } |
|
|
1646 | |
|
|
1647 | /* our caller, entersub, caches *only* this value */ |
|
|
1648 | ta.prev->gimme = GIMME_V == G_VOID ? 0 |
|
|
1649 | : GIMME_V == G_SCALAR ? 1 |
|
|
1650 | : 2; |
|
|
1651 | |
|
|
1652 | /* we need to save all local variables, as we might execute a different coroutine when transfer returns */ |
|
|
1653 | sp += 2; /* save args */ |
|
|
1654 | EXTEND (SP, 4); |
|
|
1655 | PUSHs ((SV *)(intptr_t)items); |
|
|
1656 | PUSHs ((SV *)(intptr_t)ix); |
|
|
1657 | PUSHs ((SV *)(intptr_t)ax); |
|
|
1658 | PUSHs ((SV *)(intptr_t)again); |
|
|
1659 | PUTBACK; |
|
|
1660 | BARRIER; |
|
|
1661 | TRANSFER (ta); |
|
|
1662 | BARRIER; |
|
|
1663 | SPAGAIN; |
|
|
1664 | again = (intptr_t)POPs; |
|
|
1665 | ax = (intptr_t)POPs; |
|
|
1666 | ix = (intptr_t)POPs; |
|
|
1667 | items = (intptr_t)POPs; |
|
|
1668 | sp -= 2; /* restore args */ |
|
|
1669 | } |
|
|
1670 | while (again); |
|
|
1671 | |
|
|
1672 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
|
|
1673 | XSRETURN_YES; |
|
|
1674 | |
|
|
1675 | XSRETURN_EMPTY; /* not understood why this is necessary, likely some stack handling bug */ |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | bool |
|
|
1679 | _destroy (SV *coro_sv) |
|
|
1680 | CODE: |
|
|
1681 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1682 | OUTPUT: |
3660 | OUTPUT: |
1683 | RETVAL |
3661 | RETVAL |
1684 | |
3662 | |
1685 | void |
3663 | void |
1686 | _exit (code) |
3664 | transfer (...) |
1687 | int code |
|
|
1688 | PROTOTYPE: $ |
3665 | PROTOTYPE: $$ |
1689 | CODE: |
3666 | CODE: |
1690 | _exit (code); |
3667 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
|
|
3668 | |
|
|
3669 | SV * |
|
|
3670 | clone (Coro::State coro) |
|
|
3671 | CODE: |
|
|
3672 | { |
|
|
3673 | #if CORO_CLONE |
|
|
3674 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3675 | MAGIC *mg; |
|
|
3676 | /* TODO: too much duplication */ |
|
|
3677 | ncoro->hv = newHV (); |
|
|
3678 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3679 | mg->mg_flags |= MGf_DUP; |
|
|
3680 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3681 | #else |
|
|
3682 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3683 | #endif |
|
|
3684 | } |
|
|
3685 | OUTPUT: |
|
|
3686 | RETVAL |
1691 | |
3687 | |
1692 | int |
3688 | int |
1693 | cctx_stacksize (int new_stacksize = 0) |
3689 | cctx_stacksize (int new_stacksize = 0) |
|
|
3690 | PROTOTYPE: ;$ |
1694 | CODE: |
3691 | CODE: |
1695 | RETVAL = coro_stacksize; |
3692 | RETVAL = cctx_stacksize; |
1696 | if (new_stacksize) |
3693 | if (new_stacksize) |
|
|
3694 | { |
1697 | coro_stacksize = new_stacksize; |
3695 | cctx_stacksize = new_stacksize; |
|
|
3696 | ++cctx_gen; |
|
|
3697 | } |
1698 | OUTPUT: |
3698 | OUTPUT: |
1699 | RETVAL |
3699 | RETVAL |
1700 | |
3700 | |
1701 | int |
3701 | int |
|
|
3702 | cctx_max_idle (int max_idle = 0) |
|
|
3703 | PROTOTYPE: ;$ |
|
|
3704 | CODE: |
|
|
3705 | RETVAL = cctx_max_idle; |
|
|
3706 | if (max_idle > 1) |
|
|
3707 | cctx_max_idle = max_idle; |
|
|
3708 | OUTPUT: |
|
|
3709 | RETVAL |
|
|
3710 | |
|
|
3711 | int |
1702 | cctx_count () |
3712 | cctx_count () |
|
|
3713 | PROTOTYPE: |
1703 | CODE: |
3714 | CODE: |
1704 | RETVAL = cctx_count; |
3715 | RETVAL = cctx_count; |
1705 | OUTPUT: |
3716 | OUTPUT: |
1706 | RETVAL |
3717 | RETVAL |
1707 | |
3718 | |
1708 | int |
3719 | int |
1709 | cctx_idle () |
3720 | cctx_idle () |
|
|
3721 | PROTOTYPE: |
1710 | CODE: |
3722 | CODE: |
1711 | RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2]; |
3723 | RETVAL = cctx_idle; |
1712 | OUTPUT: |
3724 | OUTPUT: |
1713 | RETVAL |
3725 | RETVAL |
1714 | |
3726 | |
1715 | void |
3727 | void |
1716 | list () |
3728 | list () |
|
|
3729 | PROTOTYPE: |
1717 | PPCODE: |
3730 | PPCODE: |
1718 | { |
3731 | { |
1719 | struct coro *coro; |
3732 | struct coro *coro; |
1720 | for (coro = coro_first; coro; coro = coro->next) |
3733 | for (coro = coro_first; coro; coro = coro->next) |
1721 | if (coro->hv) |
3734 | if (coro->hv) |
1722 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
3735 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
1723 | } |
3736 | } |
1724 | |
3737 | |
… | |
… | |
1726 | call (Coro::State coro, SV *coderef) |
3739 | call (Coro::State coro, SV *coderef) |
1727 | ALIAS: |
3740 | ALIAS: |
1728 | eval = 1 |
3741 | eval = 1 |
1729 | CODE: |
3742 | CODE: |
1730 | { |
3743 | { |
1731 | if (coro->mainstack) |
3744 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1732 | { |
3745 | { |
1733 | struct coro temp; |
3746 | struct coro *current = SvSTATE_current; |
|
|
3747 | struct CoroSLF slf_save; |
1734 | |
3748 | |
1735 | if (!(coro->flags & CF_RUNNING)) |
3749 | if (current != coro) |
1736 | { |
3750 | { |
|
|
3751 | PUTBACK; |
1737 | save_perl (aTHX_ &temp); |
3752 | save_perl (aTHX_ current); |
1738 | load_perl (aTHX_ coro); |
3753 | load_perl (aTHX_ coro); |
|
|
3754 | /* the coro is most likely in an active SLF call. |
|
|
3755 | * while not strictly required (the code we execute is |
|
|
3756 | * not allowed to call any SLF functions), it's cleaner |
|
|
3757 | * to reinitialise the slf_frame and restore it later. |
|
|
3758 | * This might one day allow us to actually do SLF calls |
|
|
3759 | * from code executed here. |
|
|
3760 | */ |
|
|
3761 | slf_save = slf_frame; |
|
|
3762 | slf_frame.prepare = 0; |
|
|
3763 | SPAGAIN; |
1739 | } |
3764 | } |
1740 | |
3765 | |
1741 | { |
|
|
1742 | dSP; |
|
|
1743 | ENTER; |
|
|
1744 | SAVETMPS; |
|
|
1745 | PUTBACK; |
|
|
1746 | PUSHSTACK; |
3766 | PUSHSTACK; |
|
|
3767 | |
1747 | PUSHMARK (SP); |
3768 | PUSHMARK (SP); |
|
|
3769 | PUTBACK; |
1748 | |
3770 | |
1749 | if (ix) |
3771 | if (ix) |
1750 | eval_sv (coderef, 0); |
3772 | eval_sv (coderef, 0); |
1751 | else |
3773 | else |
1752 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3774 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1753 | |
3775 | |
1754 | POPSTACK; |
3776 | POPSTACK; |
1755 | FREETMPS; |
3777 | SPAGAIN; |
1756 | LEAVE; |
|
|
1757 | } |
|
|
1758 | |
3778 | |
1759 | if (!(coro->flags & CF_RUNNING)) |
3779 | if (current != coro) |
1760 | { |
3780 | { |
|
|
3781 | PUTBACK; |
|
|
3782 | slf_frame = slf_save; |
1761 | save_perl (aTHX_ coro); |
3783 | save_perl (aTHX_ coro); |
1762 | load_perl (aTHX_ &temp); |
3784 | load_perl (aTHX_ current); |
|
|
3785 | SPAGAIN; |
1763 | } |
3786 | } |
1764 | } |
3787 | } |
1765 | } |
3788 | } |
1766 | |
3789 | |
1767 | SV * |
3790 | SV * |
… | |
… | |
1769 | PROTOTYPE: $ |
3792 | PROTOTYPE: $ |
1770 | ALIAS: |
3793 | ALIAS: |
1771 | is_ready = CF_READY |
3794 | is_ready = CF_READY |
1772 | is_running = CF_RUNNING |
3795 | is_running = CF_RUNNING |
1773 | is_new = CF_NEW |
3796 | is_new = CF_NEW |
1774 | is_destroyed = CF_DESTROYED |
3797 | is_destroyed = CF_ZOMBIE |
|
|
3798 | is_zombie = CF_ZOMBIE |
|
|
3799 | is_suspended = CF_SUSPENDED |
1775 | CODE: |
3800 | CODE: |
1776 | RETVAL = boolSV (coro->flags & ix); |
3801 | RETVAL = boolSV (coro->flags & ix); |
1777 | OUTPUT: |
3802 | OUTPUT: |
1778 | RETVAL |
3803 | RETVAL |
1779 | |
3804 | |
1780 | void |
3805 | void |
|
|
3806 | throw (SV *self, SV *exception = &PL_sv_undef) |
|
|
3807 | PROTOTYPE: $;$ |
|
|
3808 | CODE: |
|
|
3809 | { |
|
|
3810 | struct coro *coro = SvSTATE (self); |
|
|
3811 | struct coro *current = SvSTATE_current; |
|
|
3812 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
|
|
3813 | SvREFCNT_dec (*exceptionp); |
|
|
3814 | SvGETMAGIC (exception); |
|
|
3815 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3816 | |
|
|
3817 | api_ready (aTHX_ self); |
|
|
3818 | } |
|
|
3819 | |
|
|
3820 | void |
1781 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3821 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3822 | PROTOTYPE: $;$ |
|
|
3823 | C_ARGS: aTHX_ coro, flags |
1782 | |
3824 | |
1783 | SV * |
3825 | SV * |
1784 | has_stack (Coro::State coro) |
3826 | has_cctx (Coro::State coro) |
1785 | PROTOTYPE: $ |
3827 | PROTOTYPE: $ |
1786 | CODE: |
3828 | CODE: |
1787 | RETVAL = boolSV (!!coro->cctx); |
3829 | /* maybe manage the running flag differently */ |
|
|
3830 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1788 | OUTPUT: |
3831 | OUTPUT: |
1789 | RETVAL |
3832 | RETVAL |
1790 | |
3833 | |
1791 | int |
3834 | int |
1792 | is_traced (Coro::State coro) |
3835 | is_traced (Coro::State coro) |
… | |
… | |
1794 | CODE: |
3837 | CODE: |
1795 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3838 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1796 | OUTPUT: |
3839 | OUTPUT: |
1797 | RETVAL |
3840 | RETVAL |
1798 | |
3841 | |
1799 | IV |
3842 | UV |
1800 | rss (Coro::State coro) |
3843 | rss (Coro::State coro) |
1801 | PROTOTYPE: $ |
3844 | PROTOTYPE: $ |
1802 | ALIAS: |
3845 | ALIAS: |
1803 | usecount = 1 |
3846 | usecount = 1 |
1804 | CODE: |
3847 | CODE: |
… | |
… | |
1808 | case 1: RETVAL = coro->usecount; break; |
3851 | case 1: RETVAL = coro->usecount; break; |
1809 | } |
3852 | } |
1810 | OUTPUT: |
3853 | OUTPUT: |
1811 | RETVAL |
3854 | RETVAL |
1812 | |
3855 | |
|
|
3856 | void |
|
|
3857 | force_cctx () |
|
|
3858 | PROTOTYPE: |
|
|
3859 | CODE: |
|
|
3860 | cctx_current->idle_sp = 0; |
|
|
3861 | |
|
|
3862 | void |
|
|
3863 | swap_defsv (Coro::State self) |
|
|
3864 | PROTOTYPE: $ |
|
|
3865 | ALIAS: |
|
|
3866 | swap_defav = 1 |
|
|
3867 | CODE: |
|
|
3868 | if (!self->slot) |
|
|
3869 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3870 | else |
|
|
3871 | { |
|
|
3872 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3873 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3874 | |
|
|
3875 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3876 | } |
|
|
3877 | |
|
|
3878 | void |
|
|
3879 | cancel (Coro::State self) |
|
|
3880 | CODE: |
|
|
3881 | coro_state_destroy (aTHX_ self); |
|
|
3882 | |
|
|
3883 | SV * |
|
|
3884 | enable_times (int enabled = enable_times) |
|
|
3885 | CODE: |
|
|
3886 | { |
|
|
3887 | RETVAL = boolSV (enable_times); |
|
|
3888 | |
|
|
3889 | if (enabled != enable_times) |
|
|
3890 | { |
|
|
3891 | enable_times = enabled; |
|
|
3892 | |
|
|
3893 | coro_times_update (); |
|
|
3894 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3895 | } |
|
|
3896 | } |
|
|
3897 | OUTPUT: |
|
|
3898 | RETVAL |
|
|
3899 | |
|
|
3900 | void |
|
|
3901 | times (Coro::State self) |
|
|
3902 | PPCODE: |
|
|
3903 | { |
|
|
3904 | struct coro *current = SvSTATE (coro_current); |
|
|
3905 | |
|
|
3906 | if (ecb_expect_false (current == self)) |
|
|
3907 | { |
|
|
3908 | coro_times_update (); |
|
|
3909 | coro_times_add (SvSTATE (coro_current)); |
|
|
3910 | } |
|
|
3911 | |
|
|
3912 | EXTEND (SP, 2); |
|
|
3913 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3914 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3915 | |
|
|
3916 | if (ecb_expect_false (current == self)) |
|
|
3917 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3918 | } |
|
|
3919 | |
|
|
3920 | void |
|
|
3921 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3922 | CODE: |
|
|
3923 | { |
|
|
3924 | struct coro *current = SvSTATE_current; |
|
|
3925 | |
|
|
3926 | if (current == coro) |
|
|
3927 | SWAP_SVS (current); |
|
|
3928 | |
|
|
3929 | if (!coro->swap_sv) |
|
|
3930 | coro->swap_sv = newAV (); |
|
|
3931 | |
|
|
3932 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3933 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3934 | |
|
|
3935 | if (current == coro) |
|
|
3936 | SWAP_SVS (current); |
|
|
3937 | } |
|
|
3938 | |
1813 | |
3939 | |
1814 | MODULE = Coro::State PACKAGE = Coro |
3940 | MODULE = Coro::State PACKAGE = Coro |
1815 | |
3941 | |
1816 | BOOT: |
3942 | BOOT: |
1817 | { |
3943 | { |
1818 | int i; |
|
|
1819 | |
|
|
1820 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
3944 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1821 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
3945 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3946 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3947 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1822 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
3948 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3949 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3950 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3951 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1823 | |
3952 | |
1824 | coro_current = coro_get_sv ("Coro::current", FALSE); |
3953 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
1825 | SvREADONLY_on (coro_current); |
3954 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3955 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3956 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
1826 | |
3957 | |
1827 | coro_stash = gv_stashpv ("Coro", TRUE); |
3958 | coro_stash = gv_stashpv ("Coro", TRUE); |
1828 | |
3959 | |
1829 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3960 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1830 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3961 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1831 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3962 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1832 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3963 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1833 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3964 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1834 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3965 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1835 | |
|
|
1836 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1837 | coro_ready[i] = newAV (); |
|
|
1838 | |
3966 | |
1839 | { |
3967 | { |
1840 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3968 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1841 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
1842 | |
3969 | |
1843 | coroapi.schedule = api_schedule; |
3970 | coroapi.schedule = api_schedule; |
|
|
3971 | coroapi.schedule_to = api_schedule_to; |
1844 | coroapi.cede = api_cede; |
3972 | coroapi.cede = api_cede; |
1845 | coroapi.cede_notself = api_cede_notself; |
3973 | coroapi.cede_notself = api_cede_notself; |
1846 | coroapi.ready = api_ready; |
3974 | coroapi.ready = api_ready; |
1847 | coroapi.is_ready = api_is_ready; |
3975 | coroapi.is_ready = api_is_ready; |
1848 | coroapi.nready = &coro_nready; |
3976 | coroapi.nready = coro_nready; |
1849 | coroapi.current = coro_current; |
3977 | coroapi.current = coro_current; |
1850 | |
3978 | |
|
|
3979 | coroapi.enterleave_hook = api_enterleave_hook; |
|
|
3980 | coroapi.enterleave_unhook = api_enterleave_unhook; |
|
|
3981 | coroapi.enterleave_scope_hook = api_enterleave_scope_hook; |
|
|
3982 | |
1851 | GCoroAPI = &coroapi; |
3983 | /*GCoroAPI = &coroapi;*/ |
1852 | sv_setiv (sv, (IV)&coroapi); |
3984 | sv_setiv (sv, (IV)&coroapi); |
1853 | SvREADONLY_on (sv); |
3985 | SvREADONLY_on (sv); |
1854 | } |
3986 | } |
1855 | } |
3987 | } |
|
|
3988 | |
|
|
3989 | SV * |
|
|
3990 | async (...) |
|
|
3991 | PROTOTYPE: &@ |
|
|
3992 | CODE: |
|
|
3993 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3994 | api_ready (aTHX_ RETVAL); |
|
|
3995 | OUTPUT: |
|
|
3996 | RETVAL |
|
|
3997 | |
|
|
3998 | void |
|
|
3999 | _destroy (Coro::State coro) |
|
|
4000 | CODE: |
|
|
4001 | /* used by the manager thread */ |
|
|
4002 | coro_state_destroy (aTHX_ coro); |
|
|
4003 | |
|
|
4004 | void |
|
|
4005 | on_destroy (Coro::State coro, SV *cb) |
|
|
4006 | CODE: |
|
|
4007 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
4008 | |
|
|
4009 | void |
|
|
4010 | join (...) |
|
|
4011 | CODE: |
|
|
4012 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
4013 | |
|
|
4014 | void |
|
|
4015 | terminate (...) |
|
|
4016 | CODE: |
|
|
4017 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
4018 | |
|
|
4019 | void |
|
|
4020 | cancel (...) |
|
|
4021 | CODE: |
|
|
4022 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
4023 | |
|
|
4024 | int |
|
|
4025 | safe_cancel (Coro::State self, ...) |
|
|
4026 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
4027 | |
|
|
4028 | void |
|
|
4029 | schedule (...) |
|
|
4030 | CODE: |
|
|
4031 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
4032 | |
|
|
4033 | void |
|
|
4034 | schedule_to (...) |
|
|
4035 | CODE: |
|
|
4036 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
4037 | |
|
|
4038 | void |
|
|
4039 | cede_to (...) |
|
|
4040 | CODE: |
|
|
4041 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
4042 | |
|
|
4043 | void |
|
|
4044 | cede (...) |
|
|
4045 | CODE: |
|
|
4046 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
4047 | |
|
|
4048 | void |
|
|
4049 | cede_notself (...) |
|
|
4050 | CODE: |
|
|
4051 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1856 | |
4052 | |
1857 | void |
4053 | void |
1858 | _set_current (SV *current) |
4054 | _set_current (SV *current) |
1859 | PROTOTYPE: $ |
4055 | PROTOTYPE: $ |
1860 | CODE: |
4056 | CODE: |
1861 | SvREFCNT_dec (SvRV (coro_current)); |
4057 | SvREFCNT_dec_NN (SvRV (coro_current)); |
1862 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
4058 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
4059 | |
|
|
4060 | void |
|
|
4061 | _set_readyhook (SV *hook) |
|
|
4062 | PROTOTYPE: $ |
|
|
4063 | CODE: |
|
|
4064 | SvREFCNT_dec (coro_readyhook); |
|
|
4065 | SvGETMAGIC (hook); |
|
|
4066 | if (SvOK (hook)) |
|
|
4067 | { |
|
|
4068 | coro_readyhook = newSVsv (hook); |
|
|
4069 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
4070 | } |
|
|
4071 | else |
|
|
4072 | { |
|
|
4073 | coro_readyhook = 0; |
|
|
4074 | CORO_READYHOOK = 0; |
|
|
4075 | } |
1863 | |
4076 | |
1864 | int |
4077 | int |
1865 | prio (Coro::State coro, int newprio = 0) |
4078 | prio (Coro::State coro, int newprio = 0) |
|
|
4079 | PROTOTYPE: $;$ |
1866 | ALIAS: |
4080 | ALIAS: |
1867 | nice = 1 |
4081 | nice = 1 |
1868 | CODE: |
4082 | CODE: |
1869 | { |
4083 | { |
1870 | RETVAL = coro->prio; |
4084 | RETVAL = coro->prio; |
… | |
… | |
1872 | if (items > 1) |
4086 | if (items > 1) |
1873 | { |
4087 | { |
1874 | if (ix) |
4088 | if (ix) |
1875 | newprio = coro->prio - newprio; |
4089 | newprio = coro->prio - newprio; |
1876 | |
4090 | |
1877 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
4091 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1878 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
4092 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1879 | |
4093 | |
1880 | coro->prio = newprio; |
4094 | coro->prio = newprio; |
1881 | } |
4095 | } |
1882 | } |
4096 | } |
1883 | OUTPUT: |
4097 | OUTPUT: |
… | |
… | |
1885 | |
4099 | |
1886 | SV * |
4100 | SV * |
1887 | ready (SV *self) |
4101 | ready (SV *self) |
1888 | PROTOTYPE: $ |
4102 | PROTOTYPE: $ |
1889 | CODE: |
4103 | CODE: |
1890 | RETVAL = boolSV (api_ready (self)); |
4104 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1891 | OUTPUT: |
4105 | OUTPUT: |
1892 | RETVAL |
4106 | RETVAL |
1893 | |
4107 | |
1894 | int |
4108 | int |
1895 | nready (...) |
4109 | nready (...) |
… | |
… | |
1898 | RETVAL = coro_nready; |
4112 | RETVAL = coro_nready; |
1899 | OUTPUT: |
4113 | OUTPUT: |
1900 | RETVAL |
4114 | RETVAL |
1901 | |
4115 | |
1902 | void |
4116 | void |
1903 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
4117 | suspend (Coro::State self) |
1904 | PROTOTYPE: $;$ |
4118 | PROTOTYPE: $ |
1905 | CODE: |
4119 | CODE: |
1906 | SvREFCNT_dec (self->throw); |
4120 | self->flags |= CF_SUSPENDED; |
1907 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1908 | |
4121 | |
1909 | # for async_pool speedup |
|
|
1910 | void |
4122 | void |
1911 | _pool_1 (SV *cb) |
4123 | resume (Coro::State self) |
|
|
4124 | PROTOTYPE: $ |
1912 | CODE: |
4125 | CODE: |
1913 | { |
4126 | self->flags &= ~CF_SUSPENDED; |
1914 | struct coro *coro = SvSTATE (coro_current); |
|
|
1915 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1916 | AV *defav = GvAV (PL_defgv); |
|
|
1917 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
|
|
1918 | AV *invoke_av; |
|
|
1919 | int i, len; |
|
|
1920 | |
4127 | |
1921 | if (!invoke) |
4128 | void |
1922 | croak ("\3async_pool terminate\2\n"); |
4129 | _pool_handler (...) |
|
|
4130 | CODE: |
|
|
4131 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
1923 | |
4132 | |
1924 | SvREFCNT_dec (coro->saved_deffh); |
4133 | void |
1925 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
4134 | async_pool (SV *cv, ...) |
|
|
4135 | PROTOTYPE: &@ |
|
|
4136 | PPCODE: |
|
|
4137 | { |
|
|
4138 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
4139 | AV *av = newAV (); |
|
|
4140 | SV *cb = ST (0); |
|
|
4141 | int i; |
1926 | |
4142 | |
1927 | hv_store (hv, "desc", sizeof ("desc") - 1, |
4143 | av_extend (av, items - 2); |
1928 | newSVpvn (strpair ("[async_pool]")), 0); |
4144 | for (i = 1; i < items; ++i) |
|
|
4145 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
1929 | |
4146 | |
1930 | invoke_av = (AV *)SvRV (invoke); |
4147 | if ((SV *)hv == &PL_sv_undef) |
1931 | len = av_len (invoke_av); |
|
|
1932 | |
|
|
1933 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1934 | |
|
|
1935 | if (len > 0) |
|
|
1936 | { |
4148 | { |
1937 | av_fill (defav, len - 1); |
4149 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
1938 | for (i = 0; i < len; ++i) |
4150 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
1939 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
4151 | SvREFCNT_dec_NN (sv); |
1940 | } |
4152 | } |
1941 | |
4153 | |
|
|
4154 | { |
|
|
4155 | struct coro *coro = SvSTATE_hv (hv); |
|
|
4156 | |
|
|
4157 | assert (!coro->invoke_cb); |
|
|
4158 | assert (!coro->invoke_av); |
|
|
4159 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4160 | coro->invoke_av = av; |
|
|
4161 | } |
|
|
4162 | |
|
|
4163 | api_ready (aTHX_ (SV *)hv); |
|
|
4164 | |
|
|
4165 | if (GIMME_V != G_VOID) |
|
|
4166 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4167 | else |
1942 | SvREFCNT_dec (invoke); |
4168 | SvREFCNT_dec_NN (hv); |
1943 | } |
4169 | } |
1944 | |
4170 | |
1945 | void |
4171 | SV * |
1946 | _pool_2 (SV *cb) |
4172 | rouse_cb () |
|
|
4173 | PROTOTYPE: |
1947 | CODE: |
4174 | CODE: |
1948 | { |
4175 | RETVAL = coro_new_rouse_cb (aTHX); |
1949 | struct coro *coro = SvSTATE (coro_current); |
|
|
1950 | |
|
|
1951 | sv_setsv (cb, &PL_sv_undef); |
|
|
1952 | |
|
|
1953 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1954 | coro->saved_deffh = 0; |
|
|
1955 | |
|
|
1956 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1957 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1958 | croak ("\3async_pool terminate\2\n"); |
|
|
1959 | |
|
|
1960 | av_clear (GvAV (PL_defgv)); |
|
|
1961 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
|
|
1962 | newSVpvn (strpair ("[async_pool idle]")), 0); |
|
|
1963 | |
|
|
1964 | coro->prio = 0; |
|
|
1965 | |
|
|
1966 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1967 | api_trace (coro_current, 0); |
|
|
1968 | |
|
|
1969 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1970 | } |
|
|
1971 | |
|
|
1972 | |
|
|
1973 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1974 | |
|
|
1975 | SV * |
|
|
1976 | _get_state () |
|
|
1977 | CODE: |
|
|
1978 | { |
|
|
1979 | struct io_state *data; |
|
|
1980 | |
|
|
1981 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1982 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1983 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1984 | SvPOK_only (RETVAL); |
|
|
1985 | |
|
|
1986 | data->errorno = errno; |
|
|
1987 | data->laststype = PL_laststype; |
|
|
1988 | data->laststatval = PL_laststatval; |
|
|
1989 | data->statcache = PL_statcache; |
|
|
1990 | } |
|
|
1991 | OUTPUT: |
4176 | OUTPUT: |
1992 | RETVAL |
4177 | RETVAL |
1993 | |
4178 | |
1994 | void |
4179 | void |
1995 | _set_state (char *data_) |
4180 | rouse_wait (...) |
|
|
4181 | PROTOTYPE: ;$ |
|
|
4182 | PPCODE: |
|
|
4183 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4184 | |
|
|
4185 | void |
|
|
4186 | on_enter (SV *block) |
|
|
4187 | ALIAS: |
|
|
4188 | on_leave = 1 |
1996 | PROTOTYPE: $ |
4189 | PROTOTYPE: & |
1997 | CODE: |
4190 | CODE: |
1998 | { |
4191 | { |
1999 | struct io_state *data = (void *)data_; |
4192 | struct coro *coro = SvSTATE_current; |
|
|
4193 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
2000 | |
4194 | |
2001 | errno = data->errorno; |
4195 | block = s_get_cv_croak (block); |
2002 | PL_laststype = data->laststype; |
|
|
2003 | PL_laststatval = data->laststatval; |
|
|
2004 | PL_statcache = data->statcache; |
|
|
2005 | } |
|
|
2006 | |
4196 | |
|
|
4197 | if (!*avp) |
|
|
4198 | *avp = newAV (); |
|
|
4199 | |
|
|
4200 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4201 | |
|
|
4202 | if (!ix) |
|
|
4203 | on_enterleave_call (aTHX_ block); |
|
|
4204 | |
|
|
4205 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4206 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4207 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4208 | } |
|
|
4209 | |
|
|
4210 | |
|
|
4211 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4212 | |
|
|
4213 | BOOT: |
|
|
4214 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4215 | |
|
|
4216 | |
|
|
4217 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4218 | |
|
|
4219 | SV * |
|
|
4220 | new (SV *klass, SV *count = 0) |
|
|
4221 | CODE: |
|
|
4222 | { |
|
|
4223 | int semcnt = 1; |
|
|
4224 | |
|
|
4225 | if (count) |
|
|
4226 | { |
|
|
4227 | SvGETMAGIC (count); |
|
|
4228 | |
|
|
4229 | if (SvOK (count)) |
|
|
4230 | semcnt = SvIV (count); |
|
|
4231 | } |
|
|
4232 | |
|
|
4233 | RETVAL = sv_bless ( |
|
|
4234 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4235 | GvSTASH (CvGV (cv)) |
|
|
4236 | ); |
|
|
4237 | } |
|
|
4238 | OUTPUT: |
|
|
4239 | RETVAL |
|
|
4240 | |
|
|
4241 | # helper for Coro::Channel and others |
|
|
4242 | SV * |
|
|
4243 | _alloc (int count) |
|
|
4244 | CODE: |
|
|
4245 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4246 | OUTPUT: |
|
|
4247 | RETVAL |
|
|
4248 | |
|
|
4249 | SV * |
|
|
4250 | count (SV *self) |
|
|
4251 | CODE: |
|
|
4252 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4253 | OUTPUT: |
|
|
4254 | RETVAL |
|
|
4255 | |
|
|
4256 | void |
|
|
4257 | up (SV *self, int adjust = 1) |
|
|
4258 | ALIAS: |
|
|
4259 | adjust = 1 |
|
|
4260 | CODE: |
|
|
4261 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
4262 | |
|
|
4263 | void |
|
|
4264 | down (...) |
|
|
4265 | CODE: |
|
|
4266 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4267 | |
|
|
4268 | void |
|
|
4269 | wait (...) |
|
|
4270 | CODE: |
|
|
4271 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4272 | |
|
|
4273 | void |
|
|
4274 | try (SV *self) |
|
|
4275 | PPCODE: |
|
|
4276 | { |
|
|
4277 | AV *av = (AV *)SvRV (self); |
|
|
4278 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4279 | IV count = SvIVX (count_sv); |
|
|
4280 | |
|
|
4281 | if (count > 0) |
|
|
4282 | { |
|
|
4283 | --count; |
|
|
4284 | SvIVX (count_sv) = count; |
|
|
4285 | XSRETURN_YES; |
|
|
4286 | } |
|
|
4287 | else |
|
|
4288 | XSRETURN_NO; |
|
|
4289 | } |
|
|
4290 | |
|
|
4291 | void |
|
|
4292 | waiters (SV *self) |
|
|
4293 | PPCODE: |
|
|
4294 | { |
|
|
4295 | AV *av = (AV *)SvRV (self); |
|
|
4296 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4297 | |
|
|
4298 | if (GIMME_V == G_SCALAR) |
|
|
4299 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4300 | else |
|
|
4301 | { |
|
|
4302 | int i; |
|
|
4303 | EXTEND (SP, wcount); |
|
|
4304 | for (i = 1; i <= wcount; ++i) |
|
|
4305 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4306 | } |
|
|
4307 | } |
|
|
4308 | |
|
|
4309 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4310 | |
|
|
4311 | void |
|
|
4312 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4313 | PPCODE: |
|
|
4314 | { |
|
|
4315 | AV *av = (AV *)SvRV (sem); |
|
|
4316 | |
|
|
4317 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4318 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4319 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4320 | XSRETURN_YES; |
|
|
4321 | |
|
|
4322 | XSRETURN_NO; |
|
|
4323 | } |
|
|
4324 | |
|
|
4325 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4326 | |
|
|
4327 | SV * |
|
|
4328 | new (SV *klass) |
|
|
4329 | CODE: |
|
|
4330 | RETVAL = sv_bless ( |
|
|
4331 | coro_waitarray_new (aTHX_ 0), |
|
|
4332 | GvSTASH (CvGV (cv)) |
|
|
4333 | ); |
|
|
4334 | OUTPUT: |
|
|
4335 | RETVAL |
|
|
4336 | |
|
|
4337 | void |
|
|
4338 | wait (...) |
|
|
4339 | CODE: |
|
|
4340 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4341 | |
|
|
4342 | void |
|
|
4343 | broadcast (SV *self) |
|
|
4344 | CODE: |
|
|
4345 | { |
|
|
4346 | AV *av = (AV *)SvRV (self); |
|
|
4347 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4348 | } |
|
|
4349 | |
|
|
4350 | void |
|
|
4351 | send (SV *self) |
|
|
4352 | CODE: |
|
|
4353 | { |
|
|
4354 | AV *av = (AV *)SvRV (self); |
|
|
4355 | |
|
|
4356 | if (AvFILLp (av)) |
|
|
4357 | coro_signal_wake (aTHX_ av, 1); |
|
|
4358 | else |
|
|
4359 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4360 | } |
|
|
4361 | |
|
|
4362 | IV |
|
|
4363 | awaited (SV *self) |
|
|
4364 | CODE: |
|
|
4365 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4366 | OUTPUT: |
|
|
4367 | RETVAL |
|
|
4368 | |
|
|
4369 | |
|
|
4370 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4371 | |
|
|
4372 | BOOT: |
|
|
4373 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4374 | |
|
|
4375 | void |
|
|
4376 | _schedule (...) |
|
|
4377 | CODE: |
|
|
4378 | { |
|
|
4379 | static int incede; |
|
|
4380 | |
|
|
4381 | api_cede_notself (aTHX); |
|
|
4382 | |
|
|
4383 | ++incede; |
|
|
4384 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4385 | ; |
|
|
4386 | |
|
|
4387 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4388 | if (coro_nready >= incede) |
|
|
4389 | { |
|
|
4390 | PUSHMARK (SP); |
|
|
4391 | PUTBACK; |
|
|
4392 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4393 | } |
|
|
4394 | |
|
|
4395 | --incede; |
|
|
4396 | } |
|
|
4397 | |
|
|
4398 | |
|
|
4399 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4400 | |
|
|
4401 | void |
|
|
4402 | _register (char *target, char *proto, SV *req) |
|
|
4403 | CODE: |
|
|
4404 | { |
|
|
4405 | SV *req_cv = s_get_cv_croak (req); |
|
|
4406 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4407 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4408 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4409 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4410 | } |
|
|
4411 | |
|
|
4412 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4413 | |
|
|
4414 | void |
|
|
4415 | patch_pp_sselect () |
|
|
4416 | CODE: |
|
|
4417 | if (!coro_old_pp_sselect) |
|
|
4418 | { |
|
|
4419 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4420 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4421 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4422 | } |
|
|
4423 | |
|
|
4424 | void |
|
|
4425 | unpatch_pp_sselect () |
|
|
4426 | CODE: |
|
|
4427 | if (coro_old_pp_sselect) |
|
|
4428 | { |
|
|
4429 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4430 | coro_old_pp_sselect = 0; |
|
|
4431 | } |
|
|
4432 | |
|
|
4433 | MODULE = Coro::State PACKAGE = Coro::Util |
|
|
4434 | |
|
|
4435 | void |
|
|
4436 | _exit (int code) |
|
|
4437 | CODE: |
|
|
4438 | _exit (code); |
|
|
4439 | |
|
|
4440 | NV |
|
|
4441 | time () |
|
|
4442 | CODE: |
|
|
4443 | RETVAL = nvtime (aTHX); |
|
|
4444 | OUTPUT: |
|
|
4445 | RETVAL |
|
|
4446 | |
|
|
4447 | NV |
|
|
4448 | gettimeofday () |
|
|
4449 | PPCODE: |
|
|
4450 | { |
|
|
4451 | UV tv [2]; |
|
|
4452 | u2time (aTHX_ tv); |
|
|
4453 | EXTEND (SP, 2); |
|
|
4454 | PUSHs (sv_2mortal (newSVuv (tv [0]))); |
|
|
4455 | PUSHs (sv_2mortal (newSVuv (tv [1]))); |
|
|
4456 | } |
|
|
4457 | |