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