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1 | #include "libcoro/coro.c" |
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2 | |
1 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
2 | |
4 | #define PERL_EXT |
3 | #include "libcoro/coro.c" |
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4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
8 | |
10 | |
9 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
10 | |
12 | |
11 | #if PERL_VERSION < 6 |
13 | #include <stdio.h> |
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14 | #include <errno.h> |
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15 | #include <assert.h> |
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16 | |
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17 | #ifdef WIN32 |
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18 | # undef setjmp |
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19 | # undef longjmp |
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20 | # undef _exit |
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21 | # define setjmp _setjmp // deep magic, don't ask |
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22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
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25 | |
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26 | #ifdef HAVE_MMAP |
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27 | # include <unistd.h> |
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28 | # include <sys/mman.h> |
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29 | # ifndef MAP_ANONYMOUS |
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30 | # ifdef MAP_ANON |
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31 | # define MAP_ANONYMOUS MAP_ANON |
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32 | # else |
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33 | # undef HAVE_MMAP |
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34 | # endif |
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35 | # endif |
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36 | # include <limits.h> |
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37 | # ifndef PAGESIZE |
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38 | # define PAGESIZE pagesize |
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39 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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40 | static long pagesize; |
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41 | # else |
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42 | # define BOOT_PAGESIZE (void)0 |
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43 | # endif |
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44 | #else |
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45 | # define PAGESIZE 0 |
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46 | # define BOOT_PAGESIZE (void)0 |
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47 | #endif |
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48 | |
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49 | #if CORO_USE_VALGRIND |
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50 | # include <valgrind/valgrind.h> |
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51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
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53 | # define REGISTER_STACK(cctx,start,end) |
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54 | #endif |
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55 | |
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56 | /* the maximum number of idle cctx that will be pooled */ |
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57 | static int cctx_max_idle = 4; |
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58 | |
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59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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60 | (PERL_REVISION > (a) \ |
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61 | || (PERL_REVISION == (a) \ |
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62 | && (PERL_VERSION > (b) \ |
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63 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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64 | |
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65 | #if !PERL_VERSION_ATLEAST (5,6,0) |
12 | # ifndef PL_ppaddr |
66 | # ifndef PL_ppaddr |
13 | # define PL_ppaddr ppaddr |
67 | # define PL_ppaddr ppaddr |
14 | # endif |
68 | # endif |
15 | # ifndef call_sv |
69 | # ifndef call_sv |
16 | # define call_sv perl_call_sv |
70 | # define call_sv perl_call_sv |
… | |
… | |
27 | # ifndef IS_PADCONST |
81 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
82 | # define IS_PADCONST(v) 0 |
29 | # endif |
83 | # endif |
30 | #endif |
84 | #endif |
31 | |
85 | |
32 | #include <stdio.h> |
86 | /* 5.11 */ |
33 | #include <errno.h> |
87 | #ifndef CxHASARGS |
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88 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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89 | #endif |
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90 | |
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91 | /* 5.10.0 */ |
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92 | #ifndef SvREFCNT_inc_NN |
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93 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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94 | #endif |
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95 | |
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96 | /* 5.8.8 */ |
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97 | #ifndef GV_NOTQUAL |
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98 | # define GV_NOTQUAL 0 |
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99 | #endif |
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100 | #ifndef newSV |
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101 | # define newSV(l) NEWSV(0,l) |
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102 | #endif |
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103 | |
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104 | /* 5.8.7 */ |
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105 | #ifndef SvRV_set |
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106 | # define SvRV_set(s,v) SvRV(s) = (v) |
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107 | #endif |
34 | |
108 | |
35 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
36 | # undef STACKGUARD |
110 | # undef CORO_STACKGUARD |
37 | #endif |
111 | #endif |
38 | |
112 | |
39 | #ifndef STACKGUARD |
113 | #ifndef CORO_STACKGUARD |
40 | # define STACKGUARD 0 |
114 | # define CORO_STACKGUARD 0 |
41 | #endif |
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42 | |
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43 | #ifdef HAVE_MMAP |
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44 | # include <unistd.h> |
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45 | # include <sys/mman.h> |
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46 | # ifndef MAP_ANONYMOUS |
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47 | # ifdef MAP_ANON |
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48 | # define MAP_ANONYMOUS MAP_ANON |
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49 | # else |
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50 | # undef HAVE_MMAP |
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51 | # endif |
115 | #endif |
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116 | |
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117 | /* prefer perl internal functions over our own? */ |
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118 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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120 | #endif |
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121 | |
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122 | /* The next macros try to return the current stack pointer, in an as |
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123 | * portable way as possible. */ |
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124 | #define dSTACKLEVEL volatile char stacklevel |
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125 | #define STACKLEVEL ((void *)&stacklevel) |
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126 | |
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127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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128 | |
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129 | #if __GNUC__ >= 3 |
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130 | # define attribute(x) __attribute__(x) |
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131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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133 | #else |
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134 | # define attribute(x) |
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135 | # define BARRIER |
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136 | # define expect(expr,value) (expr) |
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137 | #endif |
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138 | |
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139 | #define expect_false(expr) expect ((expr) != 0, 0) |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
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141 | |
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142 | #define NOINLINE attribute ((noinline)) |
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143 | |
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144 | #include "CoroAPI.h" |
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145 | |
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146 | #ifdef USE_ITHREADS |
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147 | |
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148 | static perl_mutex coro_lock; |
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149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
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150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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151 | # if CORO_PTHREAD |
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152 | static void *coro_thx; |
52 | # endif |
153 | # endif |
53 | # include <limits.h> |
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54 | # ifndef PAGESIZE |
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55 | # define PAGESIZE pagesize |
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56 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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57 | static long pagesize; |
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58 | # else |
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59 | # define BOOT_PAGESIZE |
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60 | # endif |
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61 | #endif |
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62 | |
154 | |
63 | /* The next macro should declare a variable stacklevel that contains and approximation |
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64 | * to the current C stack pointer. Its property is that it changes with each call |
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65 | * and should be unique. */ |
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66 | #define dSTACKLEVEL int stacklevel |
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67 | #define STACKLEVEL ((void *)&stacklevel) |
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68 | |
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69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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70 | |
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71 | #include "CoroAPI.h" |
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72 | |
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73 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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74 | |
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75 | #ifdef USE_ITHREADS |
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76 | static perl_mutex coro_mutex; |
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77 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
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78 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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79 | #else |
155 | #else |
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156 | |
80 | # define LOCK (void)0 |
157 | # define LOCK (void)0 |
81 | # define UNLOCK (void)0 |
158 | # define UNLOCK (void)0 |
82 | #endif |
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83 | |
159 | |
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160 | #endif |
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161 | |
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162 | # undef LOCK |
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163 | # define LOCK (void)0 |
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164 | # undef UNLOCK |
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165 | # define UNLOCK (void)0 |
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166 | |
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167 | /* helper storage struct for Coro::AIO */ |
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168 | struct io_state |
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169 | { |
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170 | AV *res; |
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171 | int errorno; |
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172 | I32 laststype; /* U16 in 5.10.0 */ |
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173 | int laststatval; |
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174 | Stat_t statcache; |
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175 | }; |
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176 | |
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177 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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178 | |
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179 | static U32 cctx_gen; |
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180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
84 | static struct CoroAPI coroapi; |
181 | static struct CoroAPI coroapi; |
85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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183 | static JMPENV *main_top_env; |
86 | static HV *coro_state_stash, *coro_stash; |
184 | static HV *coro_state_stash, *coro_stash; |
87 | static SV *coro_mortal; /* will be freed after next transfer */ |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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186 | static volatile char next_has_throw; /* speedup flag for next->throw check */ |
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187 | |
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188 | static GV *irsgv; /* $/ */ |
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189 | static GV *stdoutgv; /* *STDOUT */ |
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190 | static SV *rv_diehook; |
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191 | static SV *rv_warnhook; |
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192 | static HV *hv_sig; /* %SIG */ |
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193 | |
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194 | /* async_pool helper stuff */ |
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195 | static SV *sv_pool_rss; |
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196 | static SV *sv_pool_size; |
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197 | static AV *av_async_pool; |
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198 | |
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199 | /* Coro::AnyEvent */ |
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200 | static SV *sv_activity; |
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201 | |
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202 | static struct coro_cctx *cctx_first; |
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203 | static int cctx_count, cctx_idle; |
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204 | |
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205 | enum { |
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206 | CC_MAPPED = 0x01, |
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207 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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208 | CC_TRACE = 0x04, |
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209 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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210 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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211 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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212 | }; |
88 | |
213 | |
89 | /* this is a structure representing a c-level coroutine */ |
214 | /* this is a structure representing a c-level coroutine */ |
90 | typedef struct coro_stack { |
215 | typedef struct coro_cctx { |
91 | struct coro_stack *next; |
216 | struct coro_cctx *next; |
92 | |
217 | |
93 | /* the stack */ |
218 | /* the stack */ |
94 | void *sptr; |
219 | void *sptr; |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
220 | size_t ssize; |
96 | |
221 | |
97 | /* cpu state */ |
222 | /* cpu state */ |
98 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
223 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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224 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
99 | JMPENV *top_env; |
225 | JMPENV *top_env; |
100 | coro_context cctx; |
226 | coro_context cctx; |
101 | } coro_stack; |
227 | |
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228 | U32 gen; |
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229 | #if CORO_USE_VALGRIND |
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230 | int valgrind_id; |
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231 | #endif |
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232 | unsigned char flags; |
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233 | } coro_cctx; |
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234 | |
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235 | enum { |
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236 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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237 | CF_READY = 0x0002, /* coroutine is ready */ |
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238 | CF_NEW = 0x0004, /* has never been switched to */ |
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239 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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240 | }; |
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241 | |
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242 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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243 | typedef struct { |
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244 | SV *defsv; |
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245 | AV *defav; |
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246 | SV *errsv; |
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247 | SV *irsgv; |
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248 | #define VAR(name,type) type name; |
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249 | # include "state.h" |
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250 | #undef VAR |
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251 | } perl_slots; |
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252 | |
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253 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
102 | |
254 | |
103 | /* this is a structure representing a perl-level coroutine */ |
255 | /* this is a structure representing a perl-level coroutine */ |
104 | struct coro { |
256 | struct coro { |
105 | /* the c coroutine allocated to this perl coroutine, if any */ |
257 | /* the c coroutine allocated to this perl coroutine, if any */ |
106 | coro_stack *stack; |
258 | coro_cctx *cctx; |
107 | |
259 | |
108 | /* data associated with this coroutine (initial args) */ |
260 | /* process data */ |
109 | AV *args; |
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110 | int refcnt; |
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111 | |
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112 | /* optionally saved, might be zero */ |
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113 | AV *defav; |
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114 | SV *defsv; |
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115 | SV *errsv; |
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116 | |
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117 | /* saved global state not related to stacks */ |
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118 | U8 dowarn; |
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119 | I32 in_eval; |
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120 | |
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121 | /* the stacks and related info (callchain etc..) */ |
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122 | PERL_SI *curstackinfo; |
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123 | AV *curstack; |
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124 | AV *mainstack; |
261 | AV *mainstack; |
125 | SV **stack_sp; |
262 | perl_slots *slot; /* basically the saved sp */ |
126 | OP *op; |
263 | |
127 | SV **curpad; |
264 | AV *args; /* data associated with this coroutine (initial args) */ |
128 | AV *comppad; |
265 | int refcnt; /* coroutines are refcounted, yes */ |
129 | CV *compcv; |
266 | int flags; /* CF_ flags */ |
130 | SV **stack_base; |
267 | HV *hv; /* the perl hash associated with this coro, if any */ |
131 | SV **stack_max; |
268 | |
132 | SV **tmps_stack; |
269 | /* statistics */ |
133 | I32 tmps_floor; |
270 | int usecount; /* number of transfers to this coro */ |
134 | I32 tmps_ix; |
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135 | I32 tmps_max; |
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136 | I32 *markstack; |
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137 | I32 *markstack_ptr; |
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138 | I32 *markstack_max; |
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139 | I32 *scopestack; |
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140 | I32 scopestack_ix; |
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141 | I32 scopestack_max; |
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142 | ANY *savestack; |
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143 | I32 savestack_ix; |
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144 | I32 savestack_max; |
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145 | OP **retstack; |
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146 | I32 retstack_ix; |
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147 | I32 retstack_max; |
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148 | PMOP *curpm; |
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149 | COP *curcop; |
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150 | |
271 | |
151 | /* coro process data */ |
272 | /* coro process data */ |
152 | int prio; |
273 | int prio; |
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274 | SV *throw; /* exception to be thrown */ |
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275 | |
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276 | /* async_pool */ |
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277 | SV *saved_deffh; |
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278 | |
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279 | /* linked list */ |
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280 | struct coro *next, *prev; |
153 | }; |
281 | }; |
154 | |
282 | |
155 | typedef struct coro *Coro__State; |
283 | typedef struct coro *Coro__State; |
156 | typedef struct coro *Coro__State_or_hashref; |
284 | typedef struct coro *Coro__State_or_hashref; |
157 | |
285 | |
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286 | /** Coro ********************************************************************/ |
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287 | |
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288 | #define PRIO_MAX 3 |
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289 | #define PRIO_HIGH 1 |
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290 | #define PRIO_NORMAL 0 |
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291 | #define PRIO_LOW -1 |
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292 | #define PRIO_IDLE -3 |
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293 | #define PRIO_MIN -4 |
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294 | |
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295 | /* for Coro.pm */ |
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296 | static SV *coro_current; |
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297 | static SV *coro_readyhook; |
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298 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
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299 | static int coro_nready; |
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300 | static struct coro *coro_first; |
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301 | |
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302 | /** lowlevel stuff **********************************************************/ |
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303 | |
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304 | static SV * |
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305 | coro_get_sv (pTHX_ const char *name, int create) |
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306 | { |
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307 | #if PERL_VERSION_ATLEAST (5,10,0) |
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308 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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309 | get_sv (name, create); |
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310 | #endif |
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311 | return get_sv (name, create); |
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312 | } |
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313 | |
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314 | static AV * |
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315 | coro_get_av (pTHX_ const char *name, int create) |
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316 | { |
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317 | #if PERL_VERSION_ATLEAST (5,10,0) |
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318 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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319 | get_av (name, create); |
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320 | #endif |
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321 | return get_av (name, create); |
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322 | } |
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323 | |
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324 | static HV * |
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325 | coro_get_hv (pTHX_ const char *name, int create) |
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326 | { |
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327 | #if PERL_VERSION_ATLEAST (5,10,0) |
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328 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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329 | get_hv (name, create); |
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330 | #endif |
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331 | return get_hv (name, create); |
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332 | } |
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333 | |
158 | static AV * |
334 | static AV * |
159 | coro_clone_padlist (pTHX_ CV *cv) |
335 | coro_clone_padlist (pTHX_ CV *cv) |
160 | { |
336 | { |
161 | AV *padlist = CvPADLIST (cv); |
337 | AV *padlist = CvPADLIST (cv); |
162 | AV *newpadlist, *newpad; |
338 | AV *newpadlist, *newpad; |
163 | |
339 | |
164 | newpadlist = newAV (); |
340 | newpadlist = newAV (); |
165 | AvREAL_off (newpadlist); |
341 | AvREAL_off (newpadlist); |
166 | #if PERL_VERSION < 9 |
342 | #if PERL_VERSION_ATLEAST (5,10,0) |
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343 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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344 | #else |
167 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
345 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
168 | #else |
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169 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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170 | #endif |
346 | #endif |
171 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
347 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
172 | --AvFILLp (padlist); |
348 | --AvFILLp (padlist); |
173 | |
349 | |
174 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
350 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
175 | av_store (newpadlist, 1, (SV *)newpad); |
351 | av_store (newpadlist, 1, (SV *)newpad); |
176 | |
352 | |
177 | return newpadlist; |
353 | return newpadlist; |
178 | } |
354 | } |
179 | |
355 | |
… | |
… | |
209 | |
385 | |
210 | /* casting is fun. */ |
386 | /* casting is fun. */ |
211 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
387 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
212 | free_padlist (aTHX_ padlist); |
388 | free_padlist (aTHX_ padlist); |
213 | |
389 | |
214 | SvREFCNT_dec (av); |
390 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
215 | |
391 | |
216 | return 0; |
392 | return 0; |
217 | } |
393 | } |
218 | |
394 | |
219 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
395 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
396 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
220 | |
397 | |
221 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
398 | static MGVTBL coro_cv_vtbl = { |
|
|
399 | 0, 0, 0, 0, |
|
|
400 | coro_cv_free |
|
|
401 | }; |
|
|
402 | |
|
|
403 | #define CORO_MAGIC(sv, type) \ |
|
|
404 | SvMAGIC (sv) \ |
|
|
405 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
406 | ? SvMAGIC (sv) \ |
|
|
407 | : mg_find (sv, type) \ |
|
|
408 | : 0 |
|
|
409 | |
|
|
410 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
411 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
412 | |
|
|
413 | static struct coro * |
|
|
414 | SvSTATE_ (pTHX_ SV *coro) |
|
|
415 | { |
|
|
416 | HV *stash; |
|
|
417 | MAGIC *mg; |
|
|
418 | |
|
|
419 | if (SvROK (coro)) |
|
|
420 | coro = SvRV (coro); |
|
|
421 | |
|
|
422 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
423 | croak ("Coro::State object required"); |
|
|
424 | |
|
|
425 | stash = SvSTASH (coro); |
|
|
426 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
427 | { |
|
|
428 | /* very slow, but rare, check */ |
|
|
429 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
430 | croak ("Coro::State object required"); |
|
|
431 | } |
|
|
432 | |
|
|
433 | mg = CORO_MAGIC_state (coro); |
|
|
434 | return (struct coro *)mg->mg_ptr; |
|
|
435 | } |
|
|
436 | |
|
|
437 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
222 | |
438 | |
223 | /* the next two functions merely cache the padlists */ |
439 | /* the next two functions merely cache the padlists */ |
224 | static void |
440 | static void |
225 | get_padlist (pTHX_ CV *cv) |
441 | get_padlist (pTHX_ CV *cv) |
226 | { |
442 | { |
227 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
443 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
444 | AV *av; |
228 | |
445 | |
229 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
446 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
230 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
447 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
231 | else |
448 | else |
232 | { |
449 | { |
233 | #if 0 |
450 | #if CORO_PREFER_PERL_FUNCTIONS |
234 | /* this is probably cleaner, but also slower? */ |
451 | /* this is probably cleaner? but also slower! */ |
|
|
452 | /* in practise, it seems to be less stable */ |
235 | CV *cp = Perl_cv_clone (aTHX_ cv); |
453 | CV *cp = Perl_cv_clone (cv); |
236 | CvPADLIST (cv) = CvPADLIST (cp); |
454 | CvPADLIST (cv) = CvPADLIST (cp); |
237 | CvPADLIST (cp) = 0; |
455 | CvPADLIST (cp) = 0; |
238 | SvREFCNT_dec (cp); |
456 | SvREFCNT_dec (cp); |
239 | #else |
457 | #else |
240 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
458 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
243 | } |
461 | } |
244 | |
462 | |
245 | static void |
463 | static void |
246 | put_padlist (pTHX_ CV *cv) |
464 | put_padlist (pTHX_ CV *cv) |
247 | { |
465 | { |
248 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
466 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
467 | AV *av; |
249 | |
468 | |
250 | if (!mg) |
469 | if (expect_false (!mg)) |
251 | { |
470 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
252 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
253 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
254 | mg->mg_virtual = &vtbl_coro; |
|
|
255 | mg->mg_obj = (SV *)newAV (); |
|
|
256 | } |
|
|
257 | |
471 | |
258 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
472 | av = (AV *)mg->mg_obj; |
259 | } |
|
|
260 | |
473 | |
261 | #define SB do { |
474 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
262 | #define SE } while (0) |
475 | av_extend (av, AvMAX (av) + 1); |
263 | |
476 | |
264 | #define LOAD(state) load_state(aTHX_ (state)); |
477 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
265 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
478 | } |
266 | |
479 | |
267 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
480 | /** load & save, init *******************************************************/ |
268 | |
481 | |
269 | static void |
482 | static void |
270 | load_state(pTHX_ Coro__State c) |
483 | load_perl (pTHX_ Coro__State c) |
271 | { |
484 | { |
272 | PL_dowarn = c->dowarn; |
485 | perl_slots *slot = c->slot; |
273 | PL_in_eval = c->in_eval; |
486 | c->slot = 0; |
274 | |
487 | |
275 | PL_curstackinfo = c->curstackinfo; |
|
|
276 | PL_curstack = c->curstack; |
|
|
277 | PL_mainstack = c->mainstack; |
488 | PL_mainstack = c->mainstack; |
278 | PL_stack_sp = c->stack_sp; |
|
|
279 | PL_op = c->op; |
|
|
280 | PL_curpad = c->curpad; |
|
|
281 | PL_comppad = c->comppad; |
|
|
282 | PL_compcv = c->compcv; |
|
|
283 | PL_stack_base = c->stack_base; |
|
|
284 | PL_stack_max = c->stack_max; |
|
|
285 | PL_tmps_stack = c->tmps_stack; |
|
|
286 | PL_tmps_floor = c->tmps_floor; |
|
|
287 | PL_tmps_ix = c->tmps_ix; |
|
|
288 | PL_tmps_max = c->tmps_max; |
|
|
289 | PL_markstack = c->markstack; |
|
|
290 | PL_markstack_ptr = c->markstack_ptr; |
|
|
291 | PL_markstack_max = c->markstack_max; |
|
|
292 | PL_scopestack = c->scopestack; |
|
|
293 | PL_scopestack_ix = c->scopestack_ix; |
|
|
294 | PL_scopestack_max = c->scopestack_max; |
|
|
295 | PL_savestack = c->savestack; |
|
|
296 | PL_savestack_ix = c->savestack_ix; |
|
|
297 | PL_savestack_max = c->savestack_max; |
|
|
298 | #if PERL_VERSION < 9 |
|
|
299 | PL_retstack = c->retstack; |
|
|
300 | PL_retstack_ix = c->retstack_ix; |
|
|
301 | PL_retstack_max = c->retstack_max; |
|
|
302 | #endif |
|
|
303 | PL_curpm = c->curpm; |
|
|
304 | PL_curcop = c->curcop; |
|
|
305 | |
489 | |
306 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
490 | GvSV (PL_defgv) = slot->defsv; |
307 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
491 | GvAV (PL_defgv) = slot->defav; |
308 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
492 | GvSV (PL_errgv) = slot->errsv; |
|
|
493 | GvSV (irsgv) = slot->irsgv; |
|
|
494 | |
|
|
495 | #define VAR(name,type) PL_ ## name = slot->name; |
|
|
496 | # include "state.h" |
|
|
497 | #undef VAR |
309 | |
498 | |
310 | { |
499 | { |
311 | dSP; |
500 | dSP; |
|
|
501 | |
312 | CV *cv; |
502 | CV *cv; |
313 | |
503 | |
314 | /* now do the ugly restore mess */ |
504 | /* now do the ugly restore mess */ |
315 | while ((cv = (CV *)POPs)) |
505 | while (expect_true (cv = (CV *)POPs)) |
316 | { |
506 | { |
317 | AV *padlist = (AV *)POPs; |
|
|
318 | |
|
|
319 | if (padlist) |
|
|
320 | { |
|
|
321 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
507 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
322 | CvPADLIST(cv) = padlist; |
508 | CvDEPTH (cv) = PTR2IV (POPs); |
323 | } |
509 | CvPADLIST (cv) = (AV *)POPs; |
324 | |
|
|
325 | ++CvDEPTH(cv); |
|
|
326 | } |
510 | } |
327 | |
511 | |
328 | PUTBACK; |
512 | PUTBACK; |
329 | } |
513 | } |
330 | } |
514 | } |
331 | |
515 | |
332 | static void |
516 | static void |
333 | save_state(pTHX_ Coro__State c, int flags) |
517 | save_perl (pTHX_ Coro__State c) |
334 | { |
518 | { |
335 | { |
519 | { |
336 | dSP; |
520 | dSP; |
337 | I32 cxix = cxstack_ix; |
521 | I32 cxix = cxstack_ix; |
338 | PERL_CONTEXT *ccstk = cxstack; |
522 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
341 | /* |
525 | /* |
342 | * the worst thing you can imagine happens first - we have to save |
526 | * the worst thing you can imagine happens first - we have to save |
343 | * (and reinitialize) all cv's in the whole callchain :( |
527 | * (and reinitialize) all cv's in the whole callchain :( |
344 | */ |
528 | */ |
345 | |
529 | |
346 | PUSHs (Nullsv); |
530 | XPUSHs (Nullsv); |
347 | /* this loop was inspired by pp_caller */ |
531 | /* this loop was inspired by pp_caller */ |
348 | for (;;) |
532 | for (;;) |
349 | { |
533 | { |
350 | while (cxix >= 0) |
534 | while (expect_true (cxix >= 0)) |
351 | { |
535 | { |
352 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
536 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
353 | |
537 | |
354 | if (CxTYPE(cx) == CXt_SUB) |
538 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
355 | { |
539 | { |
356 | CV *cv = cx->blk_sub.cv; |
540 | CV *cv = cx->blk_sub.cv; |
|
|
541 | |
357 | if (CvDEPTH(cv)) |
542 | if (expect_true (CvDEPTH (cv))) |
358 | { |
543 | { |
359 | EXTEND (SP, CvDEPTH(cv)*2); |
544 | EXTEND (SP, 3); |
360 | |
|
|
361 | while (--CvDEPTH(cv)) |
|
|
362 | { |
|
|
363 | /* this tells the restore code to increment CvDEPTH */ |
|
|
364 | PUSHs (Nullsv); |
|
|
365 | PUSHs ((SV *)cv); |
|
|
366 | } |
|
|
367 | |
|
|
368 | PUSHs ((SV *)CvPADLIST(cv)); |
545 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
546 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
369 | PUSHs ((SV *)cv); |
547 | PUSHs ((SV *)cv); |
370 | |
548 | |
|
|
549 | CvDEPTH (cv) = 0; |
371 | get_padlist (aTHX_ cv); |
550 | get_padlist (aTHX_ cv); |
372 | } |
551 | } |
373 | } |
552 | } |
374 | #ifdef CXt_FORMAT |
|
|
375 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
376 | { |
|
|
377 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
378 | /* my bold guess is as a simple, plain sub... */ |
|
|
379 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
380 | } |
|
|
381 | #endif |
|
|
382 | } |
553 | } |
383 | |
554 | |
384 | if (top_si->si_type == PERLSI_MAIN) |
555 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
385 | break; |
556 | break; |
386 | |
557 | |
387 | top_si = top_si->si_prev; |
558 | top_si = top_si->si_prev; |
388 | ccstk = top_si->si_cxstack; |
559 | ccstk = top_si->si_cxstack; |
389 | cxix = top_si->si_cxix; |
560 | cxix = top_si->si_cxix; |
390 | } |
561 | } |
391 | |
562 | |
392 | PUTBACK; |
563 | PUTBACK; |
393 | } |
564 | } |
394 | |
565 | |
395 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
566 | /* allocate some space on the context stack for our purposes */ |
396 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
567 | /* we manually unroll here, as usually 2 slots is enough */ |
397 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
568 | if (SLOT_COUNT >= 1) CXINC; |
|
|
569 | if (SLOT_COUNT >= 2) CXINC; |
|
|
570 | if (SLOT_COUNT >= 3) CXINC; |
|
|
571 | { |
|
|
572 | int i; |
|
|
573 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
574 | CXINC; |
|
|
575 | } |
|
|
576 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
398 | |
577 | |
399 | c->dowarn = PL_dowarn; |
|
|
400 | c->in_eval = PL_in_eval; |
|
|
401 | |
|
|
402 | c->curstackinfo = PL_curstackinfo; |
|
|
403 | c->curstack = PL_curstack; |
|
|
404 | c->mainstack = PL_mainstack; |
578 | c->mainstack = PL_mainstack; |
405 | c->stack_sp = PL_stack_sp; |
579 | |
406 | c->op = PL_op; |
580 | { |
407 | c->curpad = PL_curpad; |
581 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
408 | c->comppad = PL_comppad; |
582 | |
409 | c->compcv = PL_compcv; |
583 | slot->defav = GvAV (PL_defgv); |
410 | c->stack_base = PL_stack_base; |
584 | slot->defsv = DEFSV; |
411 | c->stack_max = PL_stack_max; |
585 | slot->errsv = ERRSV; |
412 | c->tmps_stack = PL_tmps_stack; |
586 | slot->irsgv = GvSV (irsgv); |
413 | c->tmps_floor = PL_tmps_floor; |
587 | |
414 | c->tmps_ix = PL_tmps_ix; |
588 | #define VAR(name,type) slot->name = PL_ ## name; |
415 | c->tmps_max = PL_tmps_max; |
589 | # include "state.h" |
416 | c->markstack = PL_markstack; |
590 | #undef VAR |
417 | c->markstack_ptr = PL_markstack_ptr; |
591 | } |
418 | c->markstack_max = PL_markstack_max; |
|
|
419 | c->scopestack = PL_scopestack; |
|
|
420 | c->scopestack_ix = PL_scopestack_ix; |
|
|
421 | c->scopestack_max = PL_scopestack_max; |
|
|
422 | c->savestack = PL_savestack; |
|
|
423 | c->savestack_ix = PL_savestack_ix; |
|
|
424 | c->savestack_max = PL_savestack_max; |
|
|
425 | #if PERL_VERSION < 9 |
|
|
426 | c->retstack = PL_retstack; |
|
|
427 | c->retstack_ix = PL_retstack_ix; |
|
|
428 | c->retstack_max = PL_retstack_max; |
|
|
429 | #endif |
|
|
430 | c->curpm = PL_curpm; |
|
|
431 | c->curcop = PL_curcop; |
|
|
432 | } |
592 | } |
433 | |
593 | |
434 | /* |
594 | /* |
435 | * allocate various perl stacks. This is an exact copy |
595 | * allocate various perl stacks. This is an exact copy |
436 | * of perl.c:init_stacks, except that it uses less memory |
596 | * of perl.c:init_stacks, except that it uses less memory |
437 | * on the (sometimes correct) assumption that coroutines do |
597 | * on the (sometimes correct) assumption that coroutines do |
438 | * not usually need a lot of stackspace. |
598 | * not usually need a lot of stackspace. |
439 | */ |
599 | */ |
|
|
600 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
601 | # define coro_init_stacks init_stacks |
|
|
602 | #else |
440 | static void |
603 | static void |
441 | coro_init_stacks (pTHX) |
604 | coro_init_stacks (pTHX) |
442 | { |
605 | { |
443 | LOCK; |
606 | PL_curstackinfo = new_stackinfo(32, 8); |
444 | |
|
|
445 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
446 | PL_curstackinfo->si_type = PERLSI_MAIN; |
607 | PL_curstackinfo->si_type = PERLSI_MAIN; |
447 | PL_curstack = PL_curstackinfo->si_stack; |
608 | PL_curstack = PL_curstackinfo->si_stack; |
448 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
609 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
449 | |
610 | |
450 | PL_stack_base = AvARRAY(PL_curstack); |
611 | PL_stack_base = AvARRAY(PL_curstack); |
451 | PL_stack_sp = PL_stack_base; |
612 | PL_stack_sp = PL_stack_base; |
452 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
613 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
453 | |
614 | |
454 | New(50,PL_tmps_stack,96,SV*); |
615 | New(50,PL_tmps_stack,32,SV*); |
455 | PL_tmps_floor = -1; |
616 | PL_tmps_floor = -1; |
456 | PL_tmps_ix = -1; |
617 | PL_tmps_ix = -1; |
457 | PL_tmps_max = 96; |
618 | PL_tmps_max = 32; |
458 | |
619 | |
459 | New(54,PL_markstack,16,I32); |
620 | New(54,PL_markstack,16,I32); |
460 | PL_markstack_ptr = PL_markstack; |
621 | PL_markstack_ptr = PL_markstack; |
461 | PL_markstack_max = PL_markstack + 16; |
622 | PL_markstack_max = PL_markstack + 16; |
462 | |
623 | |
463 | #ifdef SET_MARK_OFFSET |
624 | #ifdef SET_MARK_OFFSET |
464 | SET_MARK_OFFSET; |
625 | SET_MARK_OFFSET; |
465 | #endif |
626 | #endif |
466 | |
627 | |
467 | New(54,PL_scopestack,16,I32); |
628 | New(54,PL_scopestack,8,I32); |
468 | PL_scopestack_ix = 0; |
629 | PL_scopestack_ix = 0; |
469 | PL_scopestack_max = 16; |
630 | PL_scopestack_max = 8; |
470 | |
631 | |
471 | New(54,PL_savestack,96,ANY); |
632 | New(54,PL_savestack,24,ANY); |
472 | PL_savestack_ix = 0; |
633 | PL_savestack_ix = 0; |
473 | PL_savestack_max = 96; |
634 | PL_savestack_max = 24; |
474 | |
635 | |
475 | #if PERL_VERSION < 9 |
636 | #if !PERL_VERSION_ATLEAST (5,10,0) |
476 | New(54,PL_retstack,8,OP*); |
637 | New(54,PL_retstack,4,OP*); |
477 | PL_retstack_ix = 0; |
638 | PL_retstack_ix = 0; |
478 | PL_retstack_max = 8; |
639 | PL_retstack_max = 4; |
479 | #endif |
640 | #endif |
480 | |
|
|
481 | UNLOCK; |
|
|
482 | } |
641 | } |
|
|
642 | #endif |
483 | |
643 | |
484 | /* |
644 | /* |
485 | * destroy the stacks, the callchain etc... |
645 | * destroy the stacks, the callchain etc... |
486 | */ |
646 | */ |
487 | static void |
647 | static void |
488 | destroy_stacks(pTHX) |
648 | coro_destruct_stacks (pTHX) |
489 | { |
649 | { |
490 | if (!IN_DESTRUCT) |
|
|
491 | { |
|
|
492 | /* is this ugly, I ask? */ |
|
|
493 | LEAVE_SCOPE (0); |
|
|
494 | |
|
|
495 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
496 | FREETMPS; |
|
|
497 | |
|
|
498 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
499 | } |
|
|
500 | |
|
|
501 | while (PL_curstackinfo->si_next) |
650 | while (PL_curstackinfo->si_next) |
502 | PL_curstackinfo = PL_curstackinfo->si_next; |
651 | PL_curstackinfo = PL_curstackinfo->si_next; |
503 | |
652 | |
504 | while (PL_curstackinfo) |
653 | while (PL_curstackinfo) |
505 | { |
654 | { |
506 | PERL_SI *p = PL_curstackinfo->si_prev; |
655 | PERL_SI *p = PL_curstackinfo->si_prev; |
507 | |
656 | |
508 | { /*D*//*remove*/ |
|
|
509 | dSP; |
|
|
510 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
511 | PUTBACK; /* possibly superfluous */ |
|
|
512 | } |
|
|
513 | |
|
|
514 | if (!IN_DESTRUCT) |
657 | if (!IN_DESTRUCT) |
515 | { |
|
|
516 | dounwind (-1);/*D*//*remove*/ |
|
|
517 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
658 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
518 | } |
|
|
519 | |
659 | |
520 | Safefree (PL_curstackinfo->si_cxstack); |
660 | Safefree (PL_curstackinfo->si_cxstack); |
521 | Safefree (PL_curstackinfo); |
661 | Safefree (PL_curstackinfo); |
522 | PL_curstackinfo = p; |
662 | PL_curstackinfo = p; |
523 | } |
663 | } |
524 | |
664 | |
525 | Safefree (PL_tmps_stack); |
665 | Safefree (PL_tmps_stack); |
526 | Safefree (PL_markstack); |
666 | Safefree (PL_markstack); |
527 | Safefree (PL_scopestack); |
667 | Safefree (PL_scopestack); |
528 | Safefree (PL_savestack); |
668 | Safefree (PL_savestack); |
529 | #if PERL_VERSION < 9 |
669 | #if !PERL_VERSION_ATLEAST (5,10,0) |
530 | Safefree (PL_retstack); |
670 | Safefree (PL_retstack); |
531 | #endif |
671 | #endif |
532 | } |
672 | } |
533 | |
673 | |
|
|
674 | static size_t |
|
|
675 | coro_rss (pTHX_ struct coro *coro) |
|
|
676 | { |
|
|
677 | size_t rss = sizeof (*coro); |
|
|
678 | |
|
|
679 | if (coro->mainstack) |
|
|
680 | { |
|
|
681 | perl_slots tmp_slot; |
|
|
682 | perl_slots *slot; |
|
|
683 | |
|
|
684 | if (coro->flags & CF_RUNNING) |
|
|
685 | { |
|
|
686 | slot = &tmp_slot; |
|
|
687 | |
|
|
688 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
689 | # include "state.h" |
|
|
690 | #undef VAR |
|
|
691 | } |
|
|
692 | else |
|
|
693 | slot = coro->slot; |
|
|
694 | |
|
|
695 | if (slot) |
|
|
696 | { |
|
|
697 | rss += sizeof (slot->curstackinfo); |
|
|
698 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
699 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
700 | rss += slot->tmps_max * sizeof (SV *); |
|
|
701 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
702 | rss += slot->scopestack_max * sizeof (I32); |
|
|
703 | rss += slot->savestack_max * sizeof (ANY); |
|
|
704 | |
|
|
705 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
706 | rss += slot->retstack_max * sizeof (OP *); |
|
|
707 | #endif |
|
|
708 | } |
|
|
709 | } |
|
|
710 | |
|
|
711 | return rss; |
|
|
712 | } |
|
|
713 | |
|
|
714 | /** coroutine stack handling ************************************************/ |
|
|
715 | |
|
|
716 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
717 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
718 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
719 | |
|
|
720 | /* apparently < 5.8.8 */ |
|
|
721 | #ifndef MgPV_nolen_const |
|
|
722 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
723 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
724 | (const char*)(mg)->mg_ptr) |
|
|
725 | #endif |
|
|
726 | |
|
|
727 | /* |
|
|
728 | * This overrides the default magic get method of %SIG elements. |
|
|
729 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
730 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
731 | * readback here. |
|
|
732 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
733 | * not expecting this to actually change the hook. This is a potential problem |
|
|
734 | * when a schedule happens then, but we ignore this. |
|
|
735 | */ |
|
|
736 | static int |
|
|
737 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
738 | { |
|
|
739 | const char *s = MgPV_nolen_const (mg); |
|
|
740 | |
|
|
741 | if (*s == '_') |
|
|
742 | { |
|
|
743 | SV **svp = 0; |
|
|
744 | |
|
|
745 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
746 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
747 | |
|
|
748 | if (svp) |
|
|
749 | { |
|
|
750 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
751 | return 0; |
|
|
752 | } |
|
|
753 | } |
|
|
754 | |
|
|
755 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
756 | } |
|
|
757 | |
|
|
758 | static int |
|
|
759 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
760 | { |
|
|
761 | const char *s = MgPV_nolen_const (mg); |
|
|
762 | |
|
|
763 | if (*s == '_') |
|
|
764 | { |
|
|
765 | SV **svp = 0; |
|
|
766 | |
|
|
767 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
768 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
769 | |
|
|
770 | if (svp) |
|
|
771 | { |
|
|
772 | SV *old = *svp; |
|
|
773 | *svp = 0; |
|
|
774 | SvREFCNT_dec (old); |
|
|
775 | return 0; |
|
|
776 | } |
|
|
777 | } |
|
|
778 | |
|
|
779 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
780 | } |
|
|
781 | |
|
|
782 | static int |
|
|
783 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
784 | { |
|
|
785 | const char *s = MgPV_nolen_const (mg); |
|
|
786 | |
|
|
787 | if (*s == '_') |
|
|
788 | { |
|
|
789 | SV **svp = 0; |
|
|
790 | |
|
|
791 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
792 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
793 | |
|
|
794 | if (svp) |
|
|
795 | { |
|
|
796 | SV *old = *svp; |
|
|
797 | *svp = newSVsv (sv); |
|
|
798 | SvREFCNT_dec (old); |
|
|
799 | return 0; |
|
|
800 | } |
|
|
801 | } |
|
|
802 | |
|
|
803 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
804 | } |
|
|
805 | |
534 | static void |
806 | static void |
535 | setup_coro (struct coro *coro) |
807 | coro_setup (pTHX_ struct coro *coro) |
536 | { |
808 | { |
537 | /* |
809 | /* |
538 | * emulate part of the perl startup here. |
810 | * emulate part of the perl startup here. |
539 | */ |
811 | */ |
540 | dTHX; |
812 | coro_init_stacks (aTHX); |
|
|
813 | |
|
|
814 | PL_runops = RUNOPS_DEFAULT; |
|
|
815 | PL_curcop = &PL_compiling; |
|
|
816 | PL_in_eval = EVAL_NULL; |
|
|
817 | PL_comppad = 0; |
|
|
818 | PL_curpm = 0; |
|
|
819 | PL_curpad = 0; |
|
|
820 | PL_localizing = 0; |
|
|
821 | PL_dirty = 0; |
|
|
822 | PL_restartop = 0; |
|
|
823 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
824 | PL_parser = 0; |
|
|
825 | #endif |
|
|
826 | |
|
|
827 | /* recreate the die/warn hooks */ |
|
|
828 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
829 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
830 | |
|
|
831 | GvSV (PL_defgv) = newSV (0); |
|
|
832 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
833 | GvSV (PL_errgv) = newSV (0); |
|
|
834 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
835 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
836 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
|
|
837 | |
|
|
838 | { |
|
|
839 | dSP; |
|
|
840 | LOGOP myop; |
|
|
841 | |
|
|
842 | Zero (&myop, 1, LOGOP); |
|
|
843 | myop.op_next = Nullop; |
|
|
844 | myop.op_flags = OPf_WANT_VOID; |
|
|
845 | |
|
|
846 | PUSHMARK (SP); |
|
|
847 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
848 | PUTBACK; |
|
|
849 | PL_op = (OP *)&myop; |
|
|
850 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
851 | SPAGAIN; |
|
|
852 | } |
|
|
853 | |
|
|
854 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
855 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
856 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
857 | * so we ENTER here for symmetry |
|
|
858 | */ |
|
|
859 | ENTER; |
|
|
860 | } |
|
|
861 | |
|
|
862 | static void |
|
|
863 | coro_destruct (pTHX_ struct coro *coro) |
|
|
864 | { |
|
|
865 | if (!IN_DESTRUCT) |
|
|
866 | { |
|
|
867 | /* restore all saved variables and stuff */ |
|
|
868 | LEAVE_SCOPE (0); |
|
|
869 | assert (PL_tmps_floor == -1); |
|
|
870 | |
|
|
871 | /* free all temporaries */ |
|
|
872 | FREETMPS; |
|
|
873 | assert (PL_tmps_ix == -1); |
|
|
874 | |
|
|
875 | /* unwind all extra stacks */ |
|
|
876 | POPSTACK_TO (PL_mainstack); |
|
|
877 | |
|
|
878 | /* unwind main stack */ |
|
|
879 | dounwind (-1); |
|
|
880 | } |
|
|
881 | |
|
|
882 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
883 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
884 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
885 | SvREFCNT_dec (PL_defoutgv); |
|
|
886 | SvREFCNT_dec (PL_rs); |
|
|
887 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
888 | |
|
|
889 | SvREFCNT_dec (PL_diehook); |
|
|
890 | SvREFCNT_dec (PL_warnhook); |
|
|
891 | |
|
|
892 | SvREFCNT_dec (coro->saved_deffh); |
|
|
893 | SvREFCNT_dec (coro->throw); |
|
|
894 | |
|
|
895 | coro_destruct_stacks (aTHX); |
|
|
896 | } |
|
|
897 | |
|
|
898 | static void |
|
|
899 | free_coro_mortal (pTHX) |
|
|
900 | { |
|
|
901 | if (expect_true (coro_mortal)) |
|
|
902 | { |
|
|
903 | SvREFCNT_dec (coro_mortal); |
|
|
904 | coro_mortal = 0; |
|
|
905 | } |
|
|
906 | } |
|
|
907 | |
|
|
908 | static int |
|
|
909 | runops_trace (pTHX) |
|
|
910 | { |
|
|
911 | COP *oldcop = 0; |
|
|
912 | int oldcxix = -2; |
|
|
913 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
914 | coro_cctx *cctx = coro->cctx; |
|
|
915 | |
|
|
916 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
917 | { |
|
|
918 | PERL_ASYNC_CHECK (); |
|
|
919 | |
|
|
920 | if (cctx->flags & CC_TRACE_ALL) |
|
|
921 | { |
|
|
922 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
923 | { |
|
|
924 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
925 | SV **bot, **top; |
|
|
926 | AV *av = newAV (); /* return values */ |
|
|
927 | SV **cb; |
|
|
928 | dSP; |
|
|
929 | |
|
|
930 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
931 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
932 | if (isGV (gv)) |
|
|
933 | gv_efullname3 (fullname, gv, 0); |
|
|
934 | |
|
|
935 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
936 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
937 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
938 | : bot; |
|
|
939 | |
|
|
940 | av_extend (av, top - bot); |
|
|
941 | while (bot < top) |
|
|
942 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
943 | |
|
|
944 | PL_runops = RUNOPS_DEFAULT; |
|
|
945 | ENTER; |
|
|
946 | SAVETMPS; |
|
|
947 | EXTEND (SP, 3); |
|
|
948 | PUSHMARK (SP); |
|
|
949 | PUSHs (&PL_sv_no); |
|
|
950 | PUSHs (fullname); |
|
|
951 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
952 | PUTBACK; |
|
|
953 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
954 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
955 | SPAGAIN; |
|
|
956 | FREETMPS; |
|
|
957 | LEAVE; |
|
|
958 | PL_runops = runops_trace; |
|
|
959 | } |
|
|
960 | |
|
|
961 | if (oldcop != PL_curcop) |
|
|
962 | { |
|
|
963 | oldcop = PL_curcop; |
|
|
964 | |
|
|
965 | if (PL_curcop != &PL_compiling) |
|
|
966 | { |
|
|
967 | SV **cb; |
|
|
968 | |
|
|
969 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
970 | { |
|
|
971 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
972 | |
|
|
973 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
974 | { |
|
|
975 | runops_proc_t old_runops = PL_runops; |
|
|
976 | dSP; |
|
|
977 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
978 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
979 | |
|
|
980 | if (isGV (gv)) |
|
|
981 | gv_efullname3 (fullname, gv, 0); |
|
|
982 | |
|
|
983 | PL_runops = RUNOPS_DEFAULT; |
|
|
984 | ENTER; |
|
|
985 | SAVETMPS; |
|
|
986 | EXTEND (SP, 3); |
|
|
987 | PUSHMARK (SP); |
|
|
988 | PUSHs (&PL_sv_yes); |
|
|
989 | PUSHs (fullname); |
|
|
990 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
991 | PUTBACK; |
|
|
992 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
993 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
994 | SPAGAIN; |
|
|
995 | FREETMPS; |
|
|
996 | LEAVE; |
|
|
997 | PL_runops = runops_trace; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | oldcxix = cxstack_ix; |
|
|
1001 | } |
|
|
1002 | |
|
|
1003 | if (cctx->flags & CC_TRACE_LINE) |
|
|
1004 | { |
|
|
1005 | dSP; |
|
|
1006 | |
|
|
1007 | PL_runops = RUNOPS_DEFAULT; |
|
|
1008 | ENTER; |
|
|
1009 | SAVETMPS; |
|
|
1010 | EXTEND (SP, 3); |
|
|
1011 | PL_runops = RUNOPS_DEFAULT; |
|
|
1012 | PUSHMARK (SP); |
|
|
1013 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1014 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1015 | PUTBACK; |
|
|
1016 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1017 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1018 | SPAGAIN; |
|
|
1019 | FREETMPS; |
|
|
1020 | LEAVE; |
|
|
1021 | PL_runops = runops_trace; |
|
|
1022 | } |
|
|
1023 | } |
|
|
1024 | } |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | TAINT_NOT; |
|
|
1029 | return 0; |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
1033 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1034 | /* during execution of a perl program */ |
|
|
1035 | /* also initialises PL_top_env */ |
|
|
1036 | static void NOINLINE |
|
|
1037 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
1038 | { |
541 | dSP; |
1039 | dSP; |
542 | UNOP myop; |
1040 | LOGOP myop; |
543 | SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE); |
|
|
544 | |
1041 | |
545 | coro_init_stacks (aTHX); |
1042 | PL_top_env = &PL_start_env; |
546 | /*PL_curcop = 0;*/ |
|
|
547 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
548 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
549 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
550 | |
1043 | |
551 | SPAGAIN; |
1044 | if (cctx->flags & CC_TRACE) |
|
|
1045 | PL_runops = runops_trace; |
552 | |
1046 | |
553 | Zero (&myop, 1, UNOP); |
1047 | Zero (&myop, 1, LOGOP); |
554 | myop.op_next = Nullop; |
1048 | myop.op_next = PL_op; |
555 | myop.op_flags = OPf_WANT_VOID; |
1049 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
556 | |
1050 | |
|
|
1051 | PUSHMARK (SP); |
|
|
1052 | EXTEND (SP, 2); |
|
|
1053 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
1054 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
1055 | PUTBACK; |
557 | PL_op = (OP *)&myop; |
1056 | PL_op = (OP *)&myop; |
558 | |
|
|
559 | PUSHMARK(SP); |
|
|
560 | XPUSHs (sub_init); |
|
|
561 | PUTBACK; |
|
|
562 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1057 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
563 | SPAGAIN; |
1058 | SPAGAIN; |
564 | |
|
|
565 | ENTER; /* necessary e.g. for dounwind */ |
|
|
566 | } |
1059 | } |
567 | |
1060 | |
|
|
1061 | /* the tail of transfer: execute stuff we can onyl do afetr a transfer */ |
568 | static void |
1062 | static void |
569 | free_coro_mortal () |
1063 | transfer_tail (void) |
570 | { |
1064 | { |
571 | if (coro_mortal) |
1065 | UNLOCK; |
572 | { |
|
|
573 | dTHX; |
|
|
574 | |
1066 | |
575 | SvREFCNT_dec (coro_mortal); |
1067 | if (expect_false (next_has_throw)) |
576 | coro_mortal = 0; |
|
|
577 | } |
1068 | { |
578 | } |
1069 | struct coro *coro = SvSTATE (coro_current); |
579 | |
1070 | |
|
|
1071 | if (coro->throw) |
|
|
1072 | { |
|
|
1073 | SV *exception = coro->throw; |
|
|
1074 | coro->throw = 0; |
|
|
1075 | sv_setsv (ERRSV, exception); |
|
|
1076 | croak (0); |
|
|
1077 | } |
|
|
1078 | } |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | /* |
|
|
1082 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1083 | */ |
580 | static void |
1084 | static void |
581 | coro_run (void *arg) |
1085 | cctx_run (void *arg) |
582 | { |
1086 | { |
583 | /* |
1087 | #ifdef USE_ITHREADS |
584 | * this is a _very_ stripped down perl interpreter ;) |
1088 | # if CORO_PTHREAD |
585 | */ |
1089 | PERL_SET_CONTEXT (coro_thx); |
|
|
1090 | # endif |
|
|
1091 | #endif |
|
|
1092 | { |
586 | dTHX; |
1093 | dTHX; |
587 | int ret; |
|
|
588 | |
1094 | |
589 | UNLOCK; |
1095 | /* we now skip the entersub that lead to transfer () */ |
|
|
1096 | PL_op = PL_op->op_next; |
590 | |
1097 | |
591 | PL_top_env = &PL_start_env; |
1098 | /* inject a fake subroutine call to cctx_init */ |
|
|
1099 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
592 | |
1100 | |
593 | sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg)); |
1101 | /* cctx_run is the alternative tail of transfer () */ |
594 | sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op)); |
1102 | transfer_tail (); |
595 | |
1103 | |
596 | /* continue at cctx_init, without entersub */ |
|
|
597 | PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE)); |
|
|
598 | |
|
|
599 | /* somebody will hit me for both perl_run and PL_restartop */ |
1104 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
600 | ret = perl_run (aTHX_ PERL_GET_CONTEXT); |
1105 | PL_restartop = PL_op; |
601 | printf ("ret %d\n", ret);//D |
1106 | perl_run (PL_curinterp); |
602 | |
1107 | |
603 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr); |
1108 | /* |
604 | abort (); |
1109 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1110 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1111 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1112 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1113 | * coroutine as Coro has no such concept |
|
|
1114 | */ |
|
|
1115 | PL_top_env = main_top_env; |
|
|
1116 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1117 | } |
605 | } |
1118 | } |
606 | |
1119 | |
607 | static coro_stack * |
1120 | static coro_cctx * |
608 | stack_new () |
1121 | cctx_new () |
609 | { |
1122 | { |
610 | coro_stack *stack; |
1123 | coro_cctx *cctx; |
611 | |
1124 | |
|
|
1125 | ++cctx_count; |
612 | New (0, stack, 1, coro_stack); |
1126 | New (0, cctx, 1, coro_cctx); |
|
|
1127 | |
|
|
1128 | cctx->gen = cctx_gen; |
|
|
1129 | cctx->flags = 0; |
|
|
1130 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel */ |
|
|
1131 | |
|
|
1132 | return cctx; |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | /* create a new cctx only suitable as source */ |
|
|
1136 | static coro_cctx * |
|
|
1137 | cctx_new_empty () |
|
|
1138 | { |
|
|
1139 | coro_cctx *cctx = cctx_new (); |
|
|
1140 | |
|
|
1141 | cctx->sptr = 0; |
|
|
1142 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1143 | |
|
|
1144 | return cctx; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1148 | static coro_cctx * |
|
|
1149 | cctx_new_run () |
|
|
1150 | { |
|
|
1151 | coro_cctx *cctx = cctx_new (); |
|
|
1152 | void *stack_start; |
|
|
1153 | size_t stack_size; |
613 | |
1154 | |
614 | #if HAVE_MMAP |
1155 | #if HAVE_MMAP |
615 | |
|
|
616 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1156 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
617 | /* mmap suppsedly does allocate-on-write for us */ |
1157 | /* mmap supposedly does allocate-on-write for us */ |
618 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1158 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
619 | |
1159 | |
620 | if (stack->sptr == (void *)-1) |
1160 | if (cctx->sptr != (void *)-1) |
621 | { |
|
|
622 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
623 | _exit (EXIT_FAILURE); |
|
|
624 | } |
1161 | { |
625 | |
|
|
626 | # if STACKGUARD |
1162 | # if CORO_STACKGUARD |
627 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1163 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
628 | # endif |
1164 | # endif |
629 | |
1165 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
630 | #else |
1166 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
631 | |
1167 | cctx->flags |= CC_MAPPED; |
632 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
633 | New (0, stack->sptr, STACKSIZE, long); |
|
|
634 | |
|
|
635 | if (!stack->sptr) |
|
|
636 | { |
1168 | } |
|
|
1169 | else |
|
|
1170 | #endif |
|
|
1171 | { |
|
|
1172 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
|
|
1173 | New (0, cctx->sptr, cctx_stacksize, long); |
|
|
1174 | |
|
|
1175 | if (!cctx->sptr) |
|
|
1176 | { |
637 | perror (stderr, "FATAL: unable to malloc stack for coroutine"); |
1177 | perror ("FATAL: unable to allocate stack for coroutine"); |
638 | _exit (EXIT_FAILURE); |
1178 | _exit (EXIT_FAILURE); |
639 | } |
1179 | } |
640 | |
1180 | |
641 | #endif |
1181 | stack_start = cctx->sptr; |
|
|
1182 | stack_size = cctx->ssize; |
|
|
1183 | } |
642 | |
1184 | |
643 | coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); |
1185 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
1186 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
644 | |
1187 | |
645 | return stack; |
1188 | return cctx; |
646 | } |
1189 | } |
647 | |
1190 | |
648 | static void |
1191 | static void |
649 | stack_free (coro_stack *stack) |
1192 | cctx_destroy (coro_cctx *cctx) |
650 | { |
1193 | { |
651 | if (!stack) |
1194 | if (!cctx) |
652 | return; |
1195 | return; |
653 | |
1196 | |
|
|
1197 | --cctx_count; |
|
|
1198 | coro_destroy (&cctx->cctx); |
|
|
1199 | |
|
|
1200 | /* coro_transfer creates new, empty cctx's */ |
|
|
1201 | if (cctx->sptr) |
|
|
1202 | { |
|
|
1203 | #if CORO_USE_VALGRIND |
|
|
1204 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1205 | #endif |
|
|
1206 | |
654 | #if HAVE_MMAP |
1207 | #if HAVE_MMAP |
655 | munmap (stack->sptr, stack->ssize); |
1208 | if (cctx->flags & CC_MAPPED) |
656 | #else |
1209 | munmap (cctx->sptr, cctx->ssize); |
|
|
1210 | else |
|
|
1211 | #endif |
657 | Safefree (stack->sptr); |
1212 | Safefree (cctx->sptr); |
658 | #endif |
|
|
659 | |
|
|
660 | Safefree (stack); |
|
|
661 | } |
|
|
662 | |
|
|
663 | static coro_stack *stack_first; |
|
|
664 | |
|
|
665 | static coro_stack * |
|
|
666 | stack_get () |
|
|
667 | { |
|
|
668 | coro_stack *stack; |
|
|
669 | |
|
|
670 | if (stack_first) |
|
|
671 | { |
|
|
672 | stack = stack_first; |
|
|
673 | stack_first = stack->next; |
|
|
674 | } |
|
|
675 | else |
|
|
676 | { |
|
|
677 | stack = stack_new (); |
|
|
678 | PL_op = PL_op->op_next; |
|
|
679 | } |
1213 | } |
680 | |
1214 | |
681 | return stack; |
1215 | Safefree (cctx); |
|
|
1216 | } |
|
|
1217 | |
|
|
1218 | /* wether this cctx should be destructed */ |
|
|
1219 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1220 | |
|
|
1221 | static coro_cctx * |
|
|
1222 | cctx_get (pTHX) |
|
|
1223 | { |
|
|
1224 | while (expect_true (cctx_first)) |
|
|
1225 | { |
|
|
1226 | coro_cctx *cctx = cctx_first; |
|
|
1227 | cctx_first = cctx->next; |
|
|
1228 | --cctx_idle; |
|
|
1229 | |
|
|
1230 | if (expect_true (!CCTX_EXPIRED (cctx))) |
|
|
1231 | return cctx; |
|
|
1232 | |
|
|
1233 | cctx_destroy (cctx); |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | return cctx_new_run (); |
682 | } |
1237 | } |
683 | |
1238 | |
684 | static void |
1239 | static void |
685 | stack_put (coro_stack *stack) |
1240 | cctx_put (coro_cctx *cctx) |
686 | { |
1241 | { |
687 | stack->next = stack_first; |
1242 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
688 | stack_first = stack; |
|
|
689 | } |
|
|
690 | |
1243 | |
691 | /* never call directly, always through the coro_state_transfer global variable */ |
1244 | /* free another cctx if overlimit */ |
|
|
1245 | if (expect_false (cctx_idle >= cctx_max_idle)) |
|
|
1246 | { |
|
|
1247 | coro_cctx *first = cctx_first; |
|
|
1248 | cctx_first = first->next; |
|
|
1249 | --cctx_idle; |
|
|
1250 | |
|
|
1251 | cctx_destroy (first); |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | ++cctx_idle; |
|
|
1255 | cctx->next = cctx_first; |
|
|
1256 | cctx_first = cctx; |
|
|
1257 | } |
|
|
1258 | |
|
|
1259 | /** coroutine switching *****************************************************/ |
|
|
1260 | |
692 | static void |
1261 | static void |
|
|
1262 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1263 | { |
|
|
1264 | if (expect_true (prev != next)) |
|
|
1265 | { |
|
|
1266 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1267 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1268 | |
|
|
1269 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1270 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1271 | |
|
|
1272 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1273 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1274 | |
|
|
1275 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1276 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1277 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
|
|
1278 | #endif |
|
|
1279 | } |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | /* always use the TRANSFER macro */ |
|
|
1283 | static void NOINLINE |
693 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
1284 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
694 | { |
1285 | { |
695 | dSTACKLEVEL; |
1286 | dSTACKLEVEL; |
696 | |
1287 | |
697 | /* sometimes transfer is only called to set idle_sp */ |
1288 | /* sometimes transfer is only called to set idle_sp */ |
698 | if (flags == TRANSFER_SET_STACKLEVEL) |
1289 | if (expect_false (!next)) |
|
|
1290 | { |
699 | ((coro_stack *)prev)->idle_sp = STACKLEVEL; |
1291 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
700 | else if (prev != next) |
1292 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
701 | { |
1293 | } |
|
|
1294 | else if (expect_true (prev != next)) |
|
|
1295 | { |
702 | coro_stack *prev__stack; |
1296 | coro_cctx *prev__cctx; |
|
|
1297 | |
|
|
1298 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1299 | { |
|
|
1300 | /* create a new empty/source context */ |
|
|
1301 | prev->cctx = cctx_new_empty (); |
|
|
1302 | prev->flags &= ~CF_NEW; |
|
|
1303 | prev->flags |= CF_RUNNING; |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | prev->flags &= ~CF_RUNNING; |
|
|
1307 | next->flags |= CF_RUNNING; |
703 | |
1308 | |
704 | LOCK; |
1309 | LOCK; |
705 | |
1310 | |
706 | if (next->mainstack) |
1311 | /* first get rid of the old state */ |
|
|
1312 | save_perl (aTHX_ prev); |
|
|
1313 | |
|
|
1314 | if (expect_false (next->flags & CF_NEW)) |
707 | { |
1315 | { |
708 | /* coroutine already started */ |
1316 | /* need to start coroutine */ |
709 | SAVE (prev, flags); |
1317 | next->flags &= ~CF_NEW; |
710 | LOAD (next); |
1318 | /* setup coroutine call */ |
|
|
1319 | coro_setup (aTHX_ next); |
711 | } |
1320 | } |
712 | else |
1321 | else |
|
|
1322 | load_perl (aTHX_ next); |
|
|
1323 | |
|
|
1324 | prev__cctx = prev->cctx; |
|
|
1325 | |
|
|
1326 | if (prev__cctx->idle_sp == STACKLEVEL) asm volatile("");//D |
|
|
1327 | |
|
|
1328 | /* possibly "free" the cctx */ |
|
|
1329 | if (expect_true ( |
|
|
1330 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1331 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1332 | && !force_cctx |
|
|
1333 | )) |
713 | { |
1334 | { |
714 | /* need to start coroutine */ |
1335 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
715 | /* first get rid of the old state */ |
1336 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
716 | SAVE (prev, -1); |
1337 | |
717 | /* setup coroutine call */ |
1338 | prev->cctx = 0; |
718 | setup_coro (next); |
1339 | |
719 | /* need a stack */ |
1340 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
720 | next->stack = 0; |
1341 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1342 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1343 | if (!next->cctx) |
|
|
1344 | next->cctx = cctx_get (aTHX); |
|
|
1345 | |
|
|
1346 | cctx_put (prev__cctx); |
721 | } |
1347 | } |
722 | |
1348 | |
723 | if (!prev->stack) |
1349 | ++next->usecount; |
724 | /* create a new empty context */ |
|
|
725 | Newz (0, prev->stack, 1, coro_stack); |
|
|
726 | |
1350 | |
727 | prev__stack = prev->stack; |
1351 | if (expect_true (!next->cctx)) |
|
|
1352 | next->cctx = cctx_get (aTHX); |
728 | |
1353 | |
729 | /* possibly "free" the stack */ |
1354 | next_has_throw = !!next->throw; |
730 | if (prev__stack->idle_sp == STACKLEVEL) |
1355 | |
|
|
1356 | if (expect_false (prev__cctx != next->cctx)) |
731 | { |
1357 | { |
732 | stack_put (prev__stack); |
1358 | prev__cctx->top_env = PL_top_env; |
733 | prev->stack = 0; |
1359 | PL_top_env = next->cctx->top_env; |
|
|
1360 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
734 | } |
1361 | } |
735 | |
1362 | |
736 | if (!next->stack) |
|
|
737 | next->stack = stack_get (); |
|
|
738 | |
|
|
739 | if (prev__stack != next->stack) |
|
|
740 | { |
|
|
741 | prev__stack->top_env = PL_top_env; |
|
|
742 | PL_top_env = next->stack->top_env; |
|
|
743 | coro_transfer (&prev__stack->cctx, &next->stack->cctx); |
|
|
744 | } |
|
|
745 | |
|
|
746 | free_coro_mortal (); |
1363 | free_coro_mortal (aTHX); |
747 | |
|
|
748 | UNLOCK; |
1364 | UNLOCK; |
749 | } |
|
|
750 | } |
|
|
751 | |
1365 | |
752 | /* use this function pointer to call the above function */ |
1366 | transfer_tail (); |
753 | /* this is done to increase chances of the compiler not inlining the call */ |
1367 | } |
754 | /* not static to make it even harder for the compiler (and theoretically impossible in most cases */ |
1368 | } |
755 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
756 | |
1369 | |
757 | struct transfer_args |
1370 | struct transfer_args |
758 | { |
1371 | { |
759 | struct coro *prev, *next; |
1372 | struct coro *prev, *next; |
760 | int flags; |
|
|
761 | }; |
1373 | }; |
762 | |
1374 | |
763 | #define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags) |
1375 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
|
|
1376 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
764 | |
1377 | |
|
|
1378 | /** high level stuff ********************************************************/ |
|
|
1379 | |
765 | static void |
1380 | static int |
766 | coro_state_destroy (struct coro *coro) |
1381 | coro_state_destroy (pTHX_ struct coro *coro) |
767 | { |
1382 | { |
768 | if (coro->refcnt--) |
1383 | if (coro->flags & CF_DESTROYED) |
769 | return; |
1384 | return 0; |
|
|
1385 | |
|
|
1386 | coro->flags |= CF_DESTROYED; |
|
|
1387 | |
|
|
1388 | if (coro->flags & CF_READY) |
|
|
1389 | { |
|
|
1390 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1391 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1392 | LOCK; |
|
|
1393 | --coro_nready; |
|
|
1394 | UNLOCK; |
|
|
1395 | } |
|
|
1396 | else |
|
|
1397 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
770 | |
1398 | |
771 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1399 | if (coro->mainstack && coro->mainstack != main_mainstack) |
772 | { |
1400 | { |
773 | struct coro temp; |
1401 | struct coro temp; |
774 | |
1402 | |
775 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1403 | if (coro->flags & CF_RUNNING) |
|
|
1404 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1405 | |
|
|
1406 | save_perl (aTHX_ &temp); |
776 | LOAD (aTHX_ coro); |
1407 | load_perl (aTHX_ coro); |
777 | |
1408 | |
778 | destroy_stacks (aTHX); |
1409 | coro_destruct (aTHX_ coro); |
779 | |
1410 | |
780 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1411 | load_perl (aTHX_ &temp); |
781 | |
1412 | |
782 | coro->mainstack = 0; |
1413 | coro->slot = 0; |
783 | } |
1414 | } |
784 | |
1415 | |
785 | stack_free (coro->stack); |
1416 | cctx_destroy (coro->cctx); |
786 | SvREFCNT_dec (coro->args); |
1417 | SvREFCNT_dec (coro->args); |
787 | Safefree (coro); |
1418 | |
|
|
1419 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1420 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1421 | if (coro == coro_first) coro_first = coro->next; |
|
|
1422 | |
|
|
1423 | return 1; |
788 | } |
1424 | } |
789 | |
1425 | |
790 | static int |
1426 | static int |
791 | coro_state_clear (SV *sv, MAGIC *mg) |
1427 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
792 | { |
1428 | { |
793 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1429 | struct coro *coro = (struct coro *)mg->mg_ptr; |
794 | mg->mg_ptr = 0; |
1430 | mg->mg_ptr = 0; |
795 | |
1431 | |
|
|
1432 | coro->hv = 0; |
|
|
1433 | |
|
|
1434 | if (--coro->refcnt < 0) |
|
|
1435 | { |
796 | coro_state_destroy (coro); |
1436 | coro_state_destroy (aTHX_ coro); |
|
|
1437 | Safefree (coro); |
|
|
1438 | } |
797 | |
1439 | |
798 | return 0; |
1440 | return 0; |
799 | } |
1441 | } |
800 | |
1442 | |
801 | static int |
1443 | static int |
802 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
1444 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
803 | { |
1445 | { |
804 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1446 | struct coro *coro = (struct coro *)mg->mg_ptr; |
805 | |
1447 | |
806 | ++coro->refcnt; |
1448 | ++coro->refcnt; |
807 | |
1449 | |
808 | return 0; |
1450 | return 0; |
809 | } |
1451 | } |
810 | |
1452 | |
811 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
1453 | static MGVTBL coro_state_vtbl = { |
812 | |
1454 | 0, 0, 0, 0, |
813 | static struct coro * |
1455 | coro_state_free, |
814 | SvSTATE (SV *coro) |
1456 | 0, |
815 | { |
1457 | #ifdef MGf_DUP |
816 | HV *stash; |
1458 | coro_state_dup, |
817 | MAGIC *mg; |
1459 | #else |
818 | |
1460 | # define MGf_DUP 0 |
819 | if (SvROK (coro)) |
1461 | #endif |
820 | coro = SvRV (coro); |
1462 | }; |
821 | |
|
|
822 | stash = SvSTASH (coro); |
|
|
823 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
824 | { |
|
|
825 | /* very slow, but rare, check */ |
|
|
826 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
827 | croak ("Coro::State object required"); |
|
|
828 | } |
|
|
829 | |
|
|
830 | mg = SvMAGIC (coro); |
|
|
831 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
832 | return (struct coro *)mg->mg_ptr; |
|
|
833 | } |
|
|
834 | |
1463 | |
835 | static void |
1464 | static void |
836 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev, SV *next, int flags) |
1465 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
837 | { |
1466 | { |
838 | ta->prev = SvSTATE (prev); |
1467 | ta->prev = SvSTATE (prev_sv); |
839 | ta->next = SvSTATE (next); |
1468 | ta->next = SvSTATE (next_sv); |
840 | ta->flags = flags; |
1469 | TRANSFER_CHECK (*ta); |
841 | } |
1470 | } |
842 | |
1471 | |
843 | static void |
1472 | static void |
844 | api_transfer (SV *prev, SV *next, int flags) |
1473 | api_transfer (SV *prev_sv, SV *next_sv) |
845 | { |
1474 | { |
846 | dTHX; |
1475 | dTHX; |
847 | struct transfer_args ta; |
1476 | struct transfer_args ta; |
848 | |
1477 | |
849 | prepare_transfer (aTHX_ &ta, prev, next, flags); |
1478 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
850 | TRANSFER (ta); |
1479 | TRANSFER (ta, 1); |
851 | } |
1480 | } |
852 | |
1481 | |
853 | /** Coro ********************************************************************/ |
1482 | /** Coro ********************************************************************/ |
854 | |
1483 | |
855 | #define PRIO_MAX 3 |
|
|
856 | #define PRIO_HIGH 1 |
|
|
857 | #define PRIO_NORMAL 0 |
|
|
858 | #define PRIO_LOW -1 |
|
|
859 | #define PRIO_IDLE -3 |
|
|
860 | #define PRIO_MIN -4 |
|
|
861 | |
|
|
862 | /* for Coro.pm */ |
|
|
863 | static GV *coro_current, *coro_idle; |
|
|
864 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
865 | static int coro_nready; |
|
|
866 | |
|
|
867 | static void |
1484 | static void |
868 | coro_enq (pTHX_ SV *sv) |
1485 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1486 | { |
|
|
1487 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | static SV * |
|
|
1491 | coro_deq (pTHX) |
869 | { |
1492 | { |
870 | int prio; |
1493 | int prio; |
871 | |
1494 | |
872 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
873 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
874 | |
|
|
875 | prio = SvSTATE (sv)->prio; |
|
|
876 | |
|
|
877 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
878 | coro_nready++; |
|
|
879 | } |
|
|
880 | |
|
|
881 | static SV * |
|
|
882 | coro_deq (pTHX_ int min_prio) |
|
|
883 | { |
|
|
884 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
885 | |
|
|
886 | min_prio -= PRIO_MIN; |
|
|
887 | if (min_prio < 0) |
|
|
888 | min_prio = 0; |
|
|
889 | |
|
|
890 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1495 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
891 | if (AvFILLp (coro_ready [prio]) >= 0) |
1496 | if (AvFILLp (coro_ready [prio]) >= 0) |
892 | { |
|
|
893 | coro_nready--; |
|
|
894 | return av_shift (coro_ready [prio]); |
1497 | return av_shift (coro_ready [prio]); |
895 | } |
|
|
896 | |
1498 | |
897 | return 0; |
1499 | return 0; |
898 | } |
1500 | } |
899 | |
1501 | |
|
|
1502 | static int |
|
|
1503 | api_ready (SV *coro_sv) |
|
|
1504 | { |
|
|
1505 | dTHX; |
|
|
1506 | struct coro *coro; |
|
|
1507 | SV *sv_hook; |
|
|
1508 | void (*xs_hook)(void); |
|
|
1509 | |
|
|
1510 | if (SvROK (coro_sv)) |
|
|
1511 | coro_sv = SvRV (coro_sv); |
|
|
1512 | |
|
|
1513 | coro = SvSTATE (coro_sv); |
|
|
1514 | |
|
|
1515 | if (coro->flags & CF_READY) |
|
|
1516 | return 0; |
|
|
1517 | |
|
|
1518 | coro->flags |= CF_READY; |
|
|
1519 | |
|
|
1520 | LOCK; |
|
|
1521 | |
|
|
1522 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1523 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1524 | |
|
|
1525 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1526 | ++coro_nready; |
|
|
1527 | |
|
|
1528 | UNLOCK; |
|
|
1529 | |
|
|
1530 | if (sv_hook) |
|
|
1531 | { |
|
|
1532 | dSP; |
|
|
1533 | |
|
|
1534 | ENTER; |
|
|
1535 | SAVETMPS; |
|
|
1536 | |
|
|
1537 | PUSHMARK (SP); |
|
|
1538 | PUTBACK; |
|
|
1539 | call_sv (sv_hook, G_DISCARD); |
|
|
1540 | SPAGAIN; |
|
|
1541 | |
|
|
1542 | FREETMPS; |
|
|
1543 | LEAVE; |
|
|
1544 | } |
|
|
1545 | |
|
|
1546 | if (xs_hook) |
|
|
1547 | xs_hook (); |
|
|
1548 | |
|
|
1549 | return 1; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | static int |
|
|
1553 | api_is_ready (SV *coro_sv) |
|
|
1554 | { |
|
|
1555 | dTHX; |
|
|
1556 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1557 | } |
|
|
1558 | |
900 | static void |
1559 | static void |
901 | api_ready (SV *coro) |
1560 | prepare_schedule (pTHX_ struct transfer_args *ta) |
902 | { |
1561 | { |
903 | dTHX; |
1562 | SV *prev_sv, *next_sv; |
904 | |
1563 | |
905 | if (SvROK (coro)) |
1564 | for (;;) |
906 | coro = SvRV (coro); |
1565 | { |
|
|
1566 | LOCK; |
|
|
1567 | next_sv = coro_deq (aTHX); |
|
|
1568 | |
|
|
1569 | /* nothing to schedule: call the idle handler */ |
|
|
1570 | if (expect_false (!next_sv)) |
|
|
1571 | { |
|
|
1572 | dSP; |
|
|
1573 | UNLOCK; |
|
|
1574 | |
|
|
1575 | ENTER; |
|
|
1576 | SAVETMPS; |
|
|
1577 | |
|
|
1578 | PUSHMARK (SP); |
|
|
1579 | PUTBACK; |
|
|
1580 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1581 | SPAGAIN; |
|
|
1582 | |
|
|
1583 | FREETMPS; |
|
|
1584 | LEAVE; |
|
|
1585 | continue; |
|
|
1586 | } |
|
|
1587 | |
|
|
1588 | ta->next = SvSTATE (next_sv); |
|
|
1589 | |
|
|
1590 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1591 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1592 | { |
|
|
1593 | UNLOCK; |
|
|
1594 | SvREFCNT_dec (next_sv); |
|
|
1595 | /* coro_nready is already taken care of by destroy */ |
|
|
1596 | continue; |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | --coro_nready; |
|
|
1600 | UNLOCK; |
|
|
1601 | break; |
|
|
1602 | } |
|
|
1603 | |
|
|
1604 | /* free this only after the transfer */ |
|
|
1605 | prev_sv = SvRV (coro_current); |
|
|
1606 | ta->prev = SvSTATE (prev_sv); |
|
|
1607 | TRANSFER_CHECK (*ta); |
|
|
1608 | assert (ta->next->flags & CF_READY); |
|
|
1609 | ta->next->flags &= ~CF_READY; |
|
|
1610 | SvRV_set (coro_current, next_sv); |
907 | |
1611 | |
908 | LOCK; |
1612 | LOCK; |
909 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1613 | free_coro_mortal (aTHX); |
|
|
1614 | coro_mortal = prev_sv; |
910 | UNLOCK; |
1615 | UNLOCK; |
911 | } |
1616 | } |
912 | |
1617 | |
913 | static void |
1618 | static void |
914 | prepare_schedule (aTHX_ struct transfer_args *ta) |
|
|
915 | { |
|
|
916 | SV *current, *prev, *next; |
|
|
917 | |
|
|
918 | LOCK; |
|
|
919 | |
|
|
920 | current = GvSV (coro_current); |
|
|
921 | |
|
|
922 | for (;;) |
|
|
923 | { |
|
|
924 | LOCK; |
|
|
925 | |
|
|
926 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
927 | |
|
|
928 | if (next) |
|
|
929 | break; |
|
|
930 | |
|
|
931 | UNLOCK; |
|
|
932 | |
|
|
933 | { |
|
|
934 | dSP; |
|
|
935 | |
|
|
936 | ENTER; |
|
|
937 | SAVETMPS; |
|
|
938 | |
|
|
939 | PUSHMARK (SP); |
|
|
940 | PUTBACK; |
|
|
941 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
942 | |
|
|
943 | FREETMPS; |
|
|
944 | LEAVE; |
|
|
945 | } |
|
|
946 | } |
|
|
947 | |
|
|
948 | prev = SvRV (current); |
|
|
949 | SvRV (current) = next; |
|
|
950 | |
|
|
951 | /* free this only after the transfer */ |
|
|
952 | free_coro_mortal (); |
|
|
953 | coro_mortal = prev; |
|
|
954 | |
|
|
955 | ta->prev = SvSTATE (prev); |
|
|
956 | ta->next = SvSTATE (next); |
|
|
957 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
958 | |
|
|
959 | UNLOCK; |
|
|
960 | } |
|
|
961 | |
|
|
962 | static void |
|
|
963 | prepare_cede (aTHX_ struct transfer_args *ta) |
1619 | prepare_cede (pTHX_ struct transfer_args *ta) |
964 | { |
1620 | { |
965 | LOCK; |
1621 | api_ready (coro_current); |
966 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
967 | UNLOCK; |
|
|
968 | |
|
|
969 | prepare_schedule (ta); |
1622 | prepare_schedule (aTHX_ ta); |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | static int |
|
|
1626 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1627 | { |
|
|
1628 | if (coro_nready) |
|
|
1629 | { |
|
|
1630 | SV *prev = SvRV (coro_current); |
|
|
1631 | prepare_schedule (aTHX_ ta); |
|
|
1632 | api_ready (prev); |
|
|
1633 | return 1; |
|
|
1634 | } |
|
|
1635 | else |
|
|
1636 | return 0; |
970 | } |
1637 | } |
971 | |
1638 | |
972 | static void |
1639 | static void |
973 | api_schedule (void) |
1640 | api_schedule (void) |
974 | { |
1641 | { |
975 | dTHX; |
1642 | dTHX; |
976 | struct transfer_args ta; |
1643 | struct transfer_args ta; |
977 | |
1644 | |
978 | prepare_schedule (&ta); |
1645 | prepare_schedule (aTHX_ &ta); |
979 | TRANSFER (ta); |
1646 | TRANSFER (ta, 1); |
980 | } |
1647 | } |
981 | |
1648 | |
982 | static void |
1649 | static int |
983 | api_cede (void) |
1650 | api_cede (void) |
984 | { |
1651 | { |
985 | dTHX; |
1652 | dTHX; |
986 | struct transfer_args ta; |
1653 | struct transfer_args ta; |
987 | |
1654 | |
988 | prepare_cede (&ta); |
1655 | prepare_cede (aTHX_ &ta); |
|
|
1656 | |
|
|
1657 | if (expect_true (ta.prev != ta.next)) |
|
|
1658 | { |
989 | TRANSFER (ta); |
1659 | TRANSFER (ta, 1); |
|
|
1660 | return 1; |
|
|
1661 | } |
|
|
1662 | else |
|
|
1663 | return 0; |
990 | } |
1664 | } |
991 | |
1665 | |
|
|
1666 | static int |
|
|
1667 | api_cede_notself (void) |
|
|
1668 | { |
|
|
1669 | dTHX; |
|
|
1670 | struct transfer_args ta; |
|
|
1671 | |
|
|
1672 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1673 | { |
|
|
1674 | TRANSFER (ta, 1); |
|
|
1675 | return 1; |
|
|
1676 | } |
|
|
1677 | else |
|
|
1678 | return 0; |
|
|
1679 | } |
|
|
1680 | |
|
|
1681 | static void |
|
|
1682 | api_trace (SV *coro_sv, int flags) |
|
|
1683 | { |
|
|
1684 | dTHX; |
|
|
1685 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1686 | |
|
|
1687 | if (flags & CC_TRACE) |
|
|
1688 | { |
|
|
1689 | if (!coro->cctx) |
|
|
1690 | coro->cctx = cctx_new_run (); |
|
|
1691 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1692 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1693 | |
|
|
1694 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1695 | } |
|
|
1696 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1697 | { |
|
|
1698 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1699 | |
|
|
1700 | if (coro->flags & CF_RUNNING) |
|
|
1701 | PL_runops = RUNOPS_DEFAULT; |
|
|
1702 | else |
|
|
1703 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1704 | } |
|
|
1705 | } |
|
|
1706 | |
|
|
1707 | #if 0 |
|
|
1708 | static int |
|
|
1709 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1710 | { |
|
|
1711 | AV *padlist; |
|
|
1712 | AV *av = (AV *)mg->mg_obj; |
|
|
1713 | |
|
|
1714 | abort (); |
|
|
1715 | |
|
|
1716 | return 0; |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | static MGVTBL coro_gensub_vtbl = { |
|
|
1720 | 0, 0, 0, 0, |
|
|
1721 | coro_gensub_free |
|
|
1722 | }; |
|
|
1723 | #endif |
|
|
1724 | |
|
|
1725 | /*****************************************************************************/ |
|
|
1726 | /* PerlIO::cede */ |
|
|
1727 | |
|
|
1728 | typedef struct |
|
|
1729 | { |
|
|
1730 | PerlIOBuf base; |
|
|
1731 | NV next, every; |
|
|
1732 | } PerlIOCede; |
|
|
1733 | |
|
|
1734 | static IV |
|
|
1735 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1736 | { |
|
|
1737 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1738 | |
|
|
1739 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1740 | self->next = nvtime () + self->every; |
|
|
1741 | |
|
|
1742 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | static SV * |
|
|
1746 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1747 | { |
|
|
1748 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1749 | |
|
|
1750 | return newSVnv (self->every); |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | static IV |
|
|
1754 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1755 | { |
|
|
1756 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1757 | double now = nvtime (); |
|
|
1758 | |
|
|
1759 | if (now >= self->next) |
|
|
1760 | { |
|
|
1761 | api_cede (); |
|
|
1762 | self->next = now + self->every; |
|
|
1763 | } |
|
|
1764 | |
|
|
1765 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1766 | } |
|
|
1767 | |
|
|
1768 | static PerlIO_funcs PerlIO_cede = |
|
|
1769 | { |
|
|
1770 | sizeof(PerlIO_funcs), |
|
|
1771 | "cede", |
|
|
1772 | sizeof(PerlIOCede), |
|
|
1773 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1774 | PerlIOCede_pushed, |
|
|
1775 | PerlIOBuf_popped, |
|
|
1776 | PerlIOBuf_open, |
|
|
1777 | PerlIOBase_binmode, |
|
|
1778 | PerlIOCede_getarg, |
|
|
1779 | PerlIOBase_fileno, |
|
|
1780 | PerlIOBuf_dup, |
|
|
1781 | PerlIOBuf_read, |
|
|
1782 | PerlIOBuf_unread, |
|
|
1783 | PerlIOBuf_write, |
|
|
1784 | PerlIOBuf_seek, |
|
|
1785 | PerlIOBuf_tell, |
|
|
1786 | PerlIOBuf_close, |
|
|
1787 | PerlIOCede_flush, |
|
|
1788 | PerlIOBuf_fill, |
|
|
1789 | PerlIOBase_eof, |
|
|
1790 | PerlIOBase_error, |
|
|
1791 | PerlIOBase_clearerr, |
|
|
1792 | PerlIOBase_setlinebuf, |
|
|
1793 | PerlIOBuf_get_base, |
|
|
1794 | PerlIOBuf_bufsiz, |
|
|
1795 | PerlIOBuf_get_ptr, |
|
|
1796 | PerlIOBuf_get_cnt, |
|
|
1797 | PerlIOBuf_set_ptrcnt, |
|
|
1798 | }; |
|
|
1799 | |
|
|
1800 | |
992 | MODULE = Coro::State PACKAGE = Coro::State |
1801 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
993 | |
1802 | |
994 | PROTOTYPES: DISABLE |
1803 | PROTOTYPES: DISABLE |
995 | |
1804 | |
996 | BOOT: |
1805 | BOOT: |
997 | { |
1806 | { |
998 | #ifdef USE_ITHREADS |
1807 | #ifdef USE_ITHREADS |
999 | MUTEX_INIT (&coro_mutex); |
1808 | MUTEX_INIT (&coro_lock); |
|
|
1809 | # if CORO_PTHREAD |
|
|
1810 | coro_thx = PERL_GET_CONTEXT; |
|
|
1811 | # endif |
1000 | #endif |
1812 | #endif |
1001 | BOOT_PAGESIZE; |
1813 | BOOT_PAGESIZE; |
1002 | |
1814 | |
|
|
1815 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1816 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1817 | |
|
|
1818 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1819 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1820 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
1821 | |
|
|
1822 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1823 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1824 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
1825 | |
1003 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1826 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1004 | |
1827 | |
1005 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1828 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1006 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1829 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1007 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1830 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1831 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1008 | |
1832 | |
1009 | main_mainstack = PL_mainstack; |
1833 | main_mainstack = PL_mainstack; |
|
|
1834 | main_top_env = PL_top_env; |
1010 | |
1835 | |
|
|
1836 | while (main_top_env->je_prev) |
|
|
1837 | main_top_env = main_top_env->je_prev; |
|
|
1838 | |
1011 | coroapi.ver = CORO_API_VERSION; |
1839 | coroapi.ver = CORO_API_VERSION; |
|
|
1840 | coroapi.rev = CORO_API_REVISION; |
1012 | coroapi.transfer = api_transfer; |
1841 | coroapi.transfer = api_transfer; |
|
|
1842 | |
|
|
1843 | { |
|
|
1844 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
1845 | |
|
|
1846 | if (!svp) croak ("Time::HiRes is required"); |
|
|
1847 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
1848 | |
|
|
1849 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
1850 | } |
1013 | |
1851 | |
1014 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1852 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1015 | } |
1853 | } |
1016 | |
1854 | |
1017 | SV * |
1855 | SV * |
1018 | new (char *klass, ...) |
1856 | new (char *klass, ...) |
1019 | CODE: |
1857 | CODE: |
1020 | { |
1858 | { |
1021 | struct coro *coro; |
1859 | struct coro *coro; |
|
|
1860 | MAGIC *mg; |
1022 | HV *hv; |
1861 | HV *hv; |
1023 | int i; |
1862 | int i; |
1024 | |
1863 | |
1025 | Newz (0, coro, 1, struct coro); |
1864 | Newz (0, coro, 1, struct coro); |
1026 | coro->args = newAV (); |
1865 | coro->args = newAV (); |
|
|
1866 | coro->flags = CF_NEW; |
1027 | |
1867 | |
|
|
1868 | if (coro_first) coro_first->prev = coro; |
|
|
1869 | coro->next = coro_first; |
|
|
1870 | coro_first = coro; |
|
|
1871 | |
1028 | hv = newHV (); |
1872 | coro->hv = hv = newHV (); |
1029 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1873 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1874 | mg->mg_flags |= MGf_DUP; |
1030 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1875 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1031 | |
1876 | |
|
|
1877 | av_extend (coro->args, items - 1); |
1032 | for (i = 1; i < items; i++) |
1878 | for (i = 1; i < items; i++) |
1033 | av_push (coro->args, newSVsv (ST (i))); |
1879 | av_push (coro->args, newSVsv (ST (i))); |
1034 | |
|
|
1035 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
1036 | /*coro->stack = 0;*/ |
|
|
1037 | } |
1880 | } |
1038 | OUTPUT: |
1881 | OUTPUT: |
1039 | RETVAL |
1882 | RETVAL |
1040 | |
1883 | |
|
|
1884 | # these not obviously related functions are all rolled into the same xs |
|
|
1885 | # function to increase chances that they all will call transfer with the same |
|
|
1886 | # stack offset |
1041 | void |
1887 | void |
1042 | _set_stacklevel (...) |
1888 | _set_stacklevel (...) |
1043 | ALIAS: |
1889 | ALIAS: |
1044 | Coro::State::transfer = 1 |
1890 | Coro::State::transfer = 1 |
1045 | Coro::schedule = 2 |
1891 | Coro::schedule = 2 |
1046 | Coro::cede = 3 |
1892 | Coro::cede = 3 |
1047 | Coro::Cont::yield = 4 |
1893 | Coro::cede_notself = 4 |
1048 | CODE: |
1894 | CODE: |
1049 | { |
1895 | { |
1050 | struct transfer_args ta; |
1896 | struct transfer_args ta; |
1051 | |
1897 | |
|
|
1898 | PUTBACK; |
1052 | switch (ix) |
1899 | switch (ix) |
1053 | { |
1900 | { |
1054 | case 0: |
1901 | case 0: |
1055 | ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); |
1902 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1056 | ta.next = 0; |
1903 | ta.next = 0; |
1057 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1058 | break; |
1904 | break; |
1059 | |
1905 | |
1060 | case 1: |
1906 | case 1: |
1061 | if (items != 3) |
1907 | if (items != 2) |
1062 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1908 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
1063 | |
1909 | |
1064 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1910 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1065 | break; |
1911 | break; |
1066 | |
1912 | |
1067 | case 2: |
1913 | case 2: |
1068 | prepare_schedule (&ta); |
1914 | prepare_schedule (aTHX_ &ta); |
1069 | break; |
1915 | break; |
1070 | |
1916 | |
1071 | case 3: |
1917 | case 3: |
1072 | prepare_cede (&ta); |
1918 | prepare_cede (aTHX_ &ta); |
1073 | break; |
1919 | break; |
1074 | |
1920 | |
1075 | case 4: |
1921 | case 4: |
1076 | { |
1922 | if (!prepare_cede_notself (aTHX_ &ta)) |
1077 | SV *yieldstack; |
1923 | XSRETURN_EMPTY; |
1078 | SV *sv; |
|
|
1079 | AV *defav = GvAV (PL_defgv); |
|
|
1080 | |
1924 | |
1081 | yieldstack = *hv_fetch ( |
|
|
1082 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1083 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1084 | 0 |
|
|
1085 | ); |
|
|
1086 | |
|
|
1087 | /* set up @_ -- ugly */ |
|
|
1088 | av_clear (defav); |
|
|
1089 | av_fill (defav, items - 1); |
|
|
1090 | while (items--) |
|
|
1091 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1092 | |
|
|
1093 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1094 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1095 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1096 | ta.flags = 0; |
|
|
1097 | SvREFCNT_dec (sv); |
|
|
1098 | } |
|
|
1099 | break; |
1925 | break; |
1100 | |
|
|
1101 | } |
1926 | } |
|
|
1927 | SPAGAIN; |
1102 | |
1928 | |
|
|
1929 | BARRIER; |
|
|
1930 | PUTBACK; |
1103 | TRANSFER (ta); |
1931 | TRANSFER (ta, 0); |
|
|
1932 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1933 | /* be extra careful not to ever do anything after TRANSFER */ |
1104 | } |
1934 | } |
|
|
1935 | |
|
|
1936 | bool |
|
|
1937 | _destroy (SV *coro_sv) |
|
|
1938 | CODE: |
|
|
1939 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1940 | OUTPUT: |
|
|
1941 | RETVAL |
1105 | |
1942 | |
1106 | void |
1943 | void |
1107 | _clone_state_from (SV *dst, SV *src) |
|
|
1108 | CODE: |
|
|
1109 | { |
|
|
1110 | struct coro *coro_src = SvSTATE (src); |
|
|
1111 | |
|
|
1112 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1113 | |
|
|
1114 | ++coro_src->refcnt; |
|
|
1115 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | void |
|
|
1119 | _nonlocal_goto (IV nextop) |
|
|
1120 | CODE: |
|
|
1121 | /* uuh, somebody will kill me again for this */ |
|
|
1122 | PL_op->op_next = INT2PTR (OP *, nextop); |
|
|
1123 | |
|
|
1124 | void |
|
|
1125 | _exit (code) |
1944 | _exit (int code) |
1126 | int code |
|
|
1127 | PROTOTYPE: $ |
1945 | PROTOTYPE: $ |
1128 | CODE: |
1946 | CODE: |
1129 | _exit (code); |
1947 | _exit (code); |
1130 | |
1948 | |
|
|
1949 | int |
|
|
1950 | cctx_stacksize (int new_stacksize = 0) |
|
|
1951 | CODE: |
|
|
1952 | RETVAL = cctx_stacksize; |
|
|
1953 | if (new_stacksize) |
|
|
1954 | { |
|
|
1955 | cctx_stacksize = new_stacksize; |
|
|
1956 | ++cctx_gen; |
|
|
1957 | } |
|
|
1958 | OUTPUT: |
|
|
1959 | RETVAL |
|
|
1960 | |
|
|
1961 | int |
|
|
1962 | cctx_max_idle (int max_idle = 0) |
|
|
1963 | CODE: |
|
|
1964 | RETVAL = cctx_max_idle; |
|
|
1965 | if (max_idle > 1) |
|
|
1966 | cctx_max_idle = max_idle; |
|
|
1967 | OUTPUT: |
|
|
1968 | RETVAL |
|
|
1969 | |
|
|
1970 | int |
|
|
1971 | cctx_count () |
|
|
1972 | CODE: |
|
|
1973 | RETVAL = cctx_count; |
|
|
1974 | OUTPUT: |
|
|
1975 | RETVAL |
|
|
1976 | |
|
|
1977 | int |
|
|
1978 | cctx_idle () |
|
|
1979 | CODE: |
|
|
1980 | RETVAL = cctx_idle; |
|
|
1981 | OUTPUT: |
|
|
1982 | RETVAL |
|
|
1983 | |
|
|
1984 | void |
|
|
1985 | list () |
|
|
1986 | PPCODE: |
|
|
1987 | { |
|
|
1988 | struct coro *coro; |
|
|
1989 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1990 | if (coro->hv) |
|
|
1991 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1992 | } |
|
|
1993 | |
|
|
1994 | void |
|
|
1995 | call (Coro::State coro, SV *coderef) |
|
|
1996 | ALIAS: |
|
|
1997 | eval = 1 |
|
|
1998 | CODE: |
|
|
1999 | { |
|
|
2000 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
2001 | { |
|
|
2002 | struct coro temp; |
|
|
2003 | |
|
|
2004 | if (!(coro->flags & CF_RUNNING)) |
|
|
2005 | { |
|
|
2006 | PUTBACK; |
|
|
2007 | save_perl (aTHX_ &temp); |
|
|
2008 | load_perl (aTHX_ coro); |
|
|
2009 | } |
|
|
2010 | |
|
|
2011 | { |
|
|
2012 | dSP; |
|
|
2013 | ENTER; |
|
|
2014 | SAVETMPS; |
|
|
2015 | PUTBACK; |
|
|
2016 | PUSHSTACK; |
|
|
2017 | PUSHMARK (SP); |
|
|
2018 | |
|
|
2019 | if (ix) |
|
|
2020 | eval_sv (coderef, 0); |
|
|
2021 | else |
|
|
2022 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2023 | |
|
|
2024 | POPSTACK; |
|
|
2025 | SPAGAIN; |
|
|
2026 | FREETMPS; |
|
|
2027 | LEAVE; |
|
|
2028 | PUTBACK; |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | if (!(coro->flags & CF_RUNNING)) |
|
|
2032 | { |
|
|
2033 | save_perl (aTHX_ coro); |
|
|
2034 | load_perl (aTHX_ &temp); |
|
|
2035 | SPAGAIN; |
|
|
2036 | } |
|
|
2037 | } |
|
|
2038 | } |
|
|
2039 | |
|
|
2040 | SV * |
|
|
2041 | is_ready (Coro::State coro) |
|
|
2042 | PROTOTYPE: $ |
|
|
2043 | ALIAS: |
|
|
2044 | is_ready = CF_READY |
|
|
2045 | is_running = CF_RUNNING |
|
|
2046 | is_new = CF_NEW |
|
|
2047 | is_destroyed = CF_DESTROYED |
|
|
2048 | CODE: |
|
|
2049 | RETVAL = boolSV (coro->flags & ix); |
|
|
2050 | OUTPUT: |
|
|
2051 | RETVAL |
|
|
2052 | |
|
|
2053 | void |
|
|
2054 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2055 | |
|
|
2056 | SV * |
|
|
2057 | has_cctx (Coro::State coro) |
|
|
2058 | PROTOTYPE: $ |
|
|
2059 | CODE: |
|
|
2060 | RETVAL = boolSV (!!coro->cctx); |
|
|
2061 | OUTPUT: |
|
|
2062 | RETVAL |
|
|
2063 | |
|
|
2064 | int |
|
|
2065 | is_traced (Coro::State coro) |
|
|
2066 | PROTOTYPE: $ |
|
|
2067 | CODE: |
|
|
2068 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
2069 | OUTPUT: |
|
|
2070 | RETVAL |
|
|
2071 | |
|
|
2072 | UV |
|
|
2073 | rss (Coro::State coro) |
|
|
2074 | PROTOTYPE: $ |
|
|
2075 | ALIAS: |
|
|
2076 | usecount = 1 |
|
|
2077 | CODE: |
|
|
2078 | switch (ix) |
|
|
2079 | { |
|
|
2080 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2081 | case 1: RETVAL = coro->usecount; break; |
|
|
2082 | } |
|
|
2083 | OUTPUT: |
|
|
2084 | RETVAL |
|
|
2085 | |
|
|
2086 | void |
|
|
2087 | force_cctx () |
|
|
2088 | CODE: |
|
|
2089 | struct coro *coro = SvSTATE (coro_current); |
|
|
2090 | coro->cctx->idle_sp = 0; |
|
|
2091 | |
|
|
2092 | void |
|
|
2093 | swap_defsv (Coro::State self) |
|
|
2094 | PROTOTYPE: $ |
|
|
2095 | ALIAS: |
|
|
2096 | swap_defav = 1 |
|
|
2097 | CODE: |
|
|
2098 | if (!self->slot) |
|
|
2099 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
2100 | else |
|
|
2101 | { |
|
|
2102 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2103 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2104 | |
|
|
2105 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2106 | } |
|
|
2107 | |
1131 | MODULE = Coro::State PACKAGE = Coro |
2108 | MODULE = Coro::State PACKAGE = Coro |
1132 | |
2109 | |
1133 | BOOT: |
2110 | BOOT: |
1134 | { |
2111 | { |
1135 | int i; |
2112 | int i; |
1136 | |
2113 | |
|
|
2114 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2115 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2116 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2117 | |
|
|
2118 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2119 | SvREADONLY_on (coro_current); |
|
|
2120 | |
1137 | coro_stash = gv_stashpv ("Coro", TRUE); |
2121 | coro_stash = gv_stashpv ("Coro", TRUE); |
1138 | |
2122 | |
1139 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2123 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1140 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2124 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1141 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2125 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1142 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2126 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1143 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2127 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1144 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2128 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1145 | |
2129 | |
1146 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1147 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1148 | |
|
|
1149 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2130 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1150 | coro_ready[i] = newAV (); |
2131 | coro_ready[i] = newAV (); |
1151 | |
2132 | |
1152 | { |
2133 | { |
1153 | SV *sv = perl_get_sv("Coro::API", 1); |
2134 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
2135 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1154 | |
2136 | |
1155 | coroapi.schedule = api_schedule; |
2137 | coroapi.schedule = api_schedule; |
1156 | coroapi.cede = api_cede; |
2138 | coroapi.cede = api_cede; |
|
|
2139 | coroapi.cede_notself = api_cede_notself; |
1157 | coroapi.ready = api_ready; |
2140 | coroapi.ready = api_ready; |
|
|
2141 | coroapi.is_ready = api_is_ready; |
1158 | coroapi.nready = &coro_nready; |
2142 | coroapi.nready = &coro_nready; |
1159 | coroapi.current = coro_current; |
2143 | coroapi.current = coro_current; |
1160 | |
2144 | |
1161 | GCoroAPI = &coroapi; |
2145 | GCoroAPI = &coroapi; |
1162 | sv_setiv (sv, (IV)&coroapi); |
2146 | sv_setiv (sv, (IV)&coroapi); |
1163 | SvREADONLY_on (sv); |
2147 | SvREADONLY_on (sv); |
1164 | } |
2148 | } |
1165 | } |
2149 | } |
|
|
2150 | |
|
|
2151 | void |
|
|
2152 | _set_current (SV *current) |
|
|
2153 | PROTOTYPE: $ |
|
|
2154 | CODE: |
|
|
2155 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
2156 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2157 | |
|
|
2158 | void |
|
|
2159 | _set_readyhook (SV *hook) |
|
|
2160 | PROTOTYPE: $ |
|
|
2161 | CODE: |
|
|
2162 | LOCK; |
|
|
2163 | SvREFCNT_dec (coro_readyhook); |
|
|
2164 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
2165 | UNLOCK; |
1166 | |
2166 | |
1167 | int |
2167 | int |
1168 | prio (Coro::State coro, int newprio = 0) |
2168 | prio (Coro::State coro, int newprio = 0) |
1169 | ALIAS: |
2169 | ALIAS: |
1170 | nice = 1 |
2170 | nice = 1 |
… | |
… | |
1173 | RETVAL = coro->prio; |
2173 | RETVAL = coro->prio; |
1174 | |
2174 | |
1175 | if (items > 1) |
2175 | if (items > 1) |
1176 | { |
2176 | { |
1177 | if (ix) |
2177 | if (ix) |
1178 | newprio += coro->prio; |
2178 | newprio = coro->prio - newprio; |
1179 | |
2179 | |
1180 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
2180 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1181 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
2181 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1182 | |
2182 | |
1183 | coro->prio = newprio; |
2183 | coro->prio = newprio; |
1184 | } |
2184 | } |
1185 | } |
2185 | } |
|
|
2186 | OUTPUT: |
|
|
2187 | RETVAL |
1186 | |
2188 | |
1187 | void |
2189 | SV * |
1188 | ready (SV *self) |
2190 | ready (SV *self) |
1189 | PROTOTYPE: $ |
2191 | PROTOTYPE: $ |
1190 | CODE: |
2192 | CODE: |
1191 | api_ready (self); |
2193 | RETVAL = boolSV (api_ready (self)); |
|
|
2194 | OUTPUT: |
|
|
2195 | RETVAL |
1192 | |
2196 | |
1193 | int |
2197 | int |
1194 | nready (...) |
2198 | nready (...) |
1195 | PROTOTYPE: |
2199 | PROTOTYPE: |
1196 | CODE: |
2200 | CODE: |
1197 | RETVAL = coro_nready; |
2201 | RETVAL = coro_nready; |
1198 | OUTPUT: |
2202 | OUTPUT: |
1199 | RETVAL |
2203 | RETVAL |
1200 | |
2204 | |
1201 | MODULE = Coro::State PACKAGE = Coro::AIO |
2205 | void |
|
|
2206 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2207 | PROTOTYPE: $;$ |
|
|
2208 | CODE: |
|
|
2209 | SvREFCNT_dec (self->throw); |
|
|
2210 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2211 | |
|
|
2212 | # for async_pool speedup |
|
|
2213 | void |
|
|
2214 | _pool_1 (SV *cb) |
|
|
2215 | CODE: |
|
|
2216 | { |
|
|
2217 | struct coro *coro = SvSTATE (coro_current); |
|
|
2218 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2219 | AV *defav = GvAV (PL_defgv); |
|
|
2220 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2221 | AV *invoke_av; |
|
|
2222 | int i, len; |
|
|
2223 | |
|
|
2224 | if (!invoke) |
|
|
2225 | { |
|
|
2226 | SV *old = PL_diehook; |
|
|
2227 | PL_diehook = 0; |
|
|
2228 | SvREFCNT_dec (old); |
|
|
2229 | croak ("\3async_pool terminate\2\n"); |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2233 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2234 | |
|
|
2235 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2236 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2237 | |
|
|
2238 | invoke_av = (AV *)SvRV (invoke); |
|
|
2239 | len = av_len (invoke_av); |
|
|
2240 | |
|
|
2241 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2242 | |
|
|
2243 | if (len > 0) |
|
|
2244 | { |
|
|
2245 | av_fill (defav, len - 1); |
|
|
2246 | for (i = 0; i < len; ++i) |
|
|
2247 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2248 | } |
|
|
2249 | |
|
|
2250 | SvREFCNT_dec (invoke); |
|
|
2251 | } |
|
|
2252 | |
|
|
2253 | void |
|
|
2254 | _pool_2 (SV *cb) |
|
|
2255 | CODE: |
|
|
2256 | { |
|
|
2257 | struct coro *coro = SvSTATE (coro_current); |
|
|
2258 | |
|
|
2259 | sv_setsv (cb, &PL_sv_undef); |
|
|
2260 | |
|
|
2261 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2262 | coro->saved_deffh = 0; |
|
|
2263 | |
|
|
2264 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2265 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2266 | { |
|
|
2267 | SV *old = PL_diehook; |
|
|
2268 | PL_diehook = 0; |
|
|
2269 | SvREFCNT_dec (old); |
|
|
2270 | croak ("\3async_pool terminate\2\n"); |
|
|
2271 | } |
|
|
2272 | |
|
|
2273 | av_clear (GvAV (PL_defgv)); |
|
|
2274 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2275 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2276 | |
|
|
2277 | coro->prio = 0; |
|
|
2278 | |
|
|
2279 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2280 | api_trace (coro_current, 0); |
|
|
2281 | |
|
|
2282 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2283 | } |
|
|
2284 | |
|
|
2285 | #if 0 |
|
|
2286 | |
|
|
2287 | void |
|
|
2288 | _generator_call (...) |
|
|
2289 | PROTOTYPE: @ |
|
|
2290 | PPCODE: |
|
|
2291 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2292 | xxxx |
|
|
2293 | abort (); |
1202 | |
2294 | |
1203 | SV * |
2295 | SV * |
1204 | _get_state () |
2296 | gensub (SV *sub, ...) |
1205 | CODE: |
2297 | PROTOTYPE: &;@ |
|
|
2298 | CODE: |
1206 | { |
2299 | { |
1207 | struct { |
2300 | struct coro *coro; |
1208 | int errorno; |
2301 | MAGIC *mg; |
1209 | int laststype; |
2302 | CV *xcv; |
1210 | int laststatval; |
2303 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
1211 | Stat_t statcache; |
2304 | int i; |
1212 | } data; |
|
|
1213 | |
2305 | |
1214 | data.errorno = errno; |
2306 | CvGV (ncv) = CvGV (cv); |
1215 | data.laststype = PL_laststype; |
2307 | CvFILE (ncv) = CvFILE (cv); |
1216 | data.laststatval = PL_laststatval; |
|
|
1217 | data.statcache = PL_statcache; |
|
|
1218 | |
2308 | |
1219 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
2309 | Newz (0, coro, 1, struct coro); |
|
|
2310 | coro->args = newAV (); |
|
|
2311 | coro->flags = CF_NEW; |
|
|
2312 | |
|
|
2313 | av_extend (coro->args, items - 1); |
|
|
2314 | for (i = 1; i < items; i++) |
|
|
2315 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2316 | |
|
|
2317 | CvISXSUB_on (ncv); |
|
|
2318 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2319 | |
|
|
2320 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2321 | |
|
|
2322 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2323 | CvANON_on (ncv); |
|
|
2324 | |
|
|
2325 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2326 | RETVAL = newRV_noinc ((SV *)ncv); |
1220 | } |
2327 | } |
1221 | OUTPUT: |
2328 | OUTPUT: |
1222 | RETVAL |
2329 | RETVAL |
1223 | |
2330 | |
|
|
2331 | #endif |
|
|
2332 | |
|
|
2333 | |
|
|
2334 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2335 | |
1224 | void |
2336 | void |
1225 | _set_state (char *data_) |
2337 | _get_state (SV *self) |
|
|
2338 | PPCODE: |
|
|
2339 | { |
|
|
2340 | AV *defav = GvAV (PL_defgv); |
|
|
2341 | AV *av = newAV (); |
|
|
2342 | int i; |
|
|
2343 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2344 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2345 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2346 | SvPOK_only (data_sv); |
|
|
2347 | |
|
|
2348 | data->errorno = errno; |
|
|
2349 | data->laststype = PL_laststype; |
|
|
2350 | data->laststatval = PL_laststatval; |
|
|
2351 | data->statcache = PL_statcache; |
|
|
2352 | |
|
|
2353 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2354 | |
|
|
2355 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2356 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2357 | |
|
|
2358 | av_push (av, data_sv); |
|
|
2359 | |
|
|
2360 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2361 | |
|
|
2362 | api_ready (self); |
|
|
2363 | } |
|
|
2364 | |
|
|
2365 | void |
|
|
2366 | _set_state (SV *state) |
1226 | PROTOTYPE: $ |
2367 | PROTOTYPE: $ |
|
|
2368 | PPCODE: |
|
|
2369 | { |
|
|
2370 | AV *av = (AV *)SvRV (state); |
|
|
2371 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2372 | int i; |
|
|
2373 | |
|
|
2374 | errno = data->errorno; |
|
|
2375 | PL_laststype = data->laststype; |
|
|
2376 | PL_laststatval = data->laststatval; |
|
|
2377 | PL_statcache = data->statcache; |
|
|
2378 | |
|
|
2379 | EXTEND (SP, AvFILLp (av)); |
|
|
2380 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2381 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2382 | } |
|
|
2383 | |
|
|
2384 | |
|
|
2385 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2386 | |
|
|
2387 | BOOT: |
|
|
2388 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2389 | |
|
|
2390 | SV * |
|
|
2391 | _schedule (...) |
|
|
2392 | PROTOTYPE: @ |
1227 | CODE: |
2393 | CODE: |
1228 | { |
2394 | { |
1229 | struct { |
2395 | static int incede; |
1230 | int errorno; |
|
|
1231 | int laststype; |
|
|
1232 | int laststatval; |
|
|
1233 | Stat_t statcache; |
|
|
1234 | } *data = (void *)data_; |
|
|
1235 | |
2396 | |
1236 | errno = data->errorno; |
2397 | api_cede_notself (); |
1237 | PL_laststype = data->laststype; |
2398 | |
1238 | PL_laststatval = data->laststatval; |
2399 | ++incede; |
1239 | PL_statcache = data->statcache; |
2400 | while (coro_nready >= incede && api_cede ()) |
|
|
2401 | ; |
|
|
2402 | |
|
|
2403 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2404 | if (coro_nready >= incede) |
|
|
2405 | { |
|
|
2406 | PUSHMARK (SP); |
|
|
2407 | PUTBACK; |
|
|
2408 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2409 | SPAGAIN; |
|
|
2410 | } |
|
|
2411 | |
|
|
2412 | --incede; |
1240 | } |
2413 | } |
|
|
2414 | |
|
|
2415 | |
|
|
2416 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2417 | |
|
|
2418 | BOOT: |
|
|
2419 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |