1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
2 | |
2 | |
3 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
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 | #include <stdio.h> |
12 | #include <stdio.h> |
12 | #include <errno.h> |
13 | #include <errno.h> |
13 | #include <assert.h> |
14 | #include <assert.h> |
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15 | #include <inttypes.h> /* portable stdint.h */ |
14 | |
16 | |
15 | #ifdef HAVE_MMAP |
17 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
18 | # include <unistd.h> |
17 | # include <sys/mman.h> |
19 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
20 | # ifndef MAP_ANONYMOUS |
… | |
… | |
70 | # ifndef IS_PADCONST |
72 | # ifndef IS_PADCONST |
71 | # define IS_PADCONST(v) 0 |
73 | # define IS_PADCONST(v) 0 |
72 | # endif |
74 | # endif |
73 | #endif |
75 | #endif |
74 | |
76 | |
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77 | /* 5.8.8 */ |
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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 | |
75 | /* 5.8.7 */ |
90 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
91 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
92 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
93 | #endif |
79 | |
94 | |
… | |
… | |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
113 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
99 | |
114 | |
100 | #if __GNUC__ >= 3 |
115 | #if __GNUC__ >= 3 |
101 | # define attribute(x) __attribute__(x) |
116 | # define attribute(x) __attribute__(x) |
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
117 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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118 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
103 | #else |
119 | #else |
104 | # define attribute(x) |
120 | # define attribute(x) |
105 | # define BARRIER |
121 | # define BARRIER |
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122 | # define expect(expr,value) (expr) |
106 | #endif |
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) |
107 | |
127 | |
108 | #define NOINLINE attribute ((noinline)) |
128 | #define NOINLINE attribute ((noinline)) |
109 | |
129 | |
110 | #include "CoroAPI.h" |
130 | #include "CoroAPI.h" |
111 | |
131 | |
… | |
… | |
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
150 | static size_t coro_stacksize = CORO_STACKSIZE; |
131 | static struct CoroAPI coroapi; |
151 | static struct CoroAPI coroapi; |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
152 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static JMPENV *main_top_env; |
153 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
154 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
155 | static volatile SV *coro_mortal; /* will be freed after next transfer */ |
136 | |
156 | |
137 | static GV *irsgv; /* $/ */ |
157 | static GV *irsgv; /* $/ */ |
138 | static GV *stdoutgv; /* *STDOUT */ |
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 */ |
139 | |
162 | |
140 | /* async_pool helper stuff */ |
163 | /* async_pool helper stuff */ |
141 | static SV *sv_pool_rss; |
164 | static SV *sv_pool_rss; |
142 | static SV *sv_pool_size; |
165 | static SV *sv_pool_size; |
143 | static AV *av_async_pool; |
166 | static AV *av_async_pool; |
… | |
… | |
179 | CF_READY = 0x0002, /* coroutine is ready */ |
202 | CF_READY = 0x0002, /* coroutine is ready */ |
180 | CF_NEW = 0x0004, /* has never been switched to */ |
203 | CF_NEW = 0x0004, /* has never been switched to */ |
181 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
204 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
182 | }; |
205 | }; |
183 | |
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)) |
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219 | |
184 | /* this is a structure representing a perl-level coroutine */ |
220 | /* this is a structure representing a perl-level coroutine */ |
185 | struct coro { |
221 | struct coro { |
186 | /* the c coroutine allocated to this perl coroutine, if any */ |
222 | /* the c coroutine allocated to this perl coroutine, if any */ |
187 | coro_cctx *cctx; |
223 | coro_cctx *cctx; |
188 | |
224 | |
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225 | /* process data */ |
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226 | AV *mainstack; |
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227 | perl_slots *slot; /* basically the saved sp */ |
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228 | |
189 | /* data associated with this coroutine (initial args) */ |
229 | AV *args; /* data associated with this coroutine (initial args) */ |
190 | AV *args; |
230 | int refcnt; /* coroutines are refcounted, yes */ |
191 | int refcnt; |
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192 | int flags; /* CF_ flags */ |
231 | int flags; /* CF_ flags */ |
193 | |
232 | HV *hv; /* the perl hash associated with this coro, if any */ |
194 | /* optionally saved, might be zero */ |
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195 | AV *defav; /* @_ */ |
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196 | SV *defsv; /* $_ */ |
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197 | SV *errsv; /* $@ */ |
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198 | SV *deffh; /* default filehandle */ |
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199 | SV *irssv; /* $/ */ |
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200 | SV *irssv_sv; /* real $/ cache */ |
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201 | |
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202 | #define VAR(name,type) type name; |
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203 | # include "state.h" |
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204 | #undef VAR |
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205 | |
233 | |
206 | /* statistics */ |
234 | /* statistics */ |
207 | int usecount; /* number of transfers to this coro */ |
235 | int usecount; /* number of transfers to this coro */ |
208 | |
236 | |
209 | /* coro process data */ |
237 | /* coro process data */ |
210 | int prio; |
238 | int prio; |
211 | //SV *throw; |
239 | SV *throw; /* exception to be thrown */ |
212 | |
240 | |
213 | /* async_pool */ |
241 | /* async_pool */ |
214 | SV *saved_deffh; |
242 | SV *saved_deffh; |
215 | |
243 | |
216 | /* linked list */ |
244 | /* linked list */ |
217 | struct coro *next, *prev; |
245 | struct coro *next, *prev; |
218 | HV *hv; /* the perl hash associated with this coro, if any */ |
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219 | }; |
246 | }; |
220 | |
247 | |
221 | typedef struct coro *Coro__State; |
248 | typedef struct coro *Coro__State; |
222 | typedef struct coro *Coro__State_or_hashref; |
249 | typedef struct coro *Coro__State_or_hashref; |
223 | |
250 | |
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… | |
236 | static int coro_nready; |
263 | static int coro_nready; |
237 | static struct coro *coro_first; |
264 | static struct coro *coro_first; |
238 | |
265 | |
239 | /** lowlevel stuff **********************************************************/ |
266 | /** lowlevel stuff **********************************************************/ |
240 | |
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 (5,10,0) |
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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 (5,10,0) |
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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 (5,10,0) |
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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 | |
241 | static AV * |
298 | static AV * |
242 | coro_clone_padlist (pTHX_ CV *cv) |
299 | coro_clone_padlist (pTHX_ CV *cv) |
243 | { |
300 | { |
244 | AV *padlist = CvPADLIST (cv); |
301 | AV *padlist = CvPADLIST (cv); |
245 | AV *newpadlist, *newpad; |
302 | AV *newpadlist, *newpad; |
246 | |
303 | |
247 | newpadlist = newAV (); |
304 | newpadlist = newAV (); |
248 | AvREAL_off (newpadlist); |
305 | AvREAL_off (newpadlist); |
249 | #if PERL_VERSION_ATLEAST (5,9,0) |
306 | #if PERL_VERSION_ATLEAST (5,10,0) |
250 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
307 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
251 | #else |
308 | #else |
252 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
309 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
253 | #endif |
310 | #endif |
254 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
311 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
… | |
… | |
292 | |
349 | |
293 | /* casting is fun. */ |
350 | /* casting is fun. */ |
294 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
351 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
295 | free_padlist (aTHX_ padlist); |
352 | free_padlist (aTHX_ padlist); |
296 | |
353 | |
297 | SvREFCNT_dec (av); |
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298 | |
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299 | return 0; |
354 | return 0; |
300 | } |
355 | } |
301 | |
356 | |
302 | #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 |
303 | |
359 | |
304 | 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 | }; |
305 | |
364 | |
306 | #define CORO_MAGIC(cv) \ |
365 | #define CORO_MAGIC(sv,type) \ |
307 | SvMAGIC (cv) \ |
366 | SvMAGIC (sv) \ |
308 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
367 | ? SvMAGIC (sv)->mg_type == type \ |
309 | ? SvMAGIC (cv) \ |
368 | ? SvMAGIC (sv) \ |
310 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
369 | : mg_find (sv, type) \ |
311 | : 0 |
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) |
312 | |
374 | |
313 | static struct coro * |
375 | static struct coro * |
314 | SvSTATE_ (pTHX_ SV *coro) |
376 | SvSTATE_ (pTHX_ SV *coro) |
315 | { |
377 | { |
316 | HV *stash; |
378 | HV *stash; |
317 | MAGIC *mg; |
379 | MAGIC *mg; |
318 | |
380 | |
319 | if (SvROK (coro)) |
381 | if (SvROK (coro)) |
320 | coro = SvRV (coro); |
382 | coro = SvRV (coro); |
321 | |
383 | |
322 | if (SvTYPE (coro) != SVt_PVHV) |
384 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
323 | croak ("Coro::State object required"); |
385 | croak ("Coro::State object required"); |
324 | |
386 | |
325 | stash = SvSTASH (coro); |
387 | stash = SvSTASH (coro); |
326 | if (stash != coro_stash && stash != coro_state_stash) |
388 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
327 | { |
389 | { |
328 | /* very slow, but rare, check */ |
390 | /* very slow, but rare, check */ |
329 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
391 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
330 | croak ("Coro::State object required"); |
392 | croak ("Coro::State object required"); |
331 | } |
393 | } |
332 | |
394 | |
333 | mg = CORO_MAGIC (coro); |
395 | mg = CORO_MAGIC_state (coro); |
334 | return (struct coro *)mg->mg_ptr; |
396 | return (struct coro *)mg->mg_ptr; |
335 | } |
397 | } |
336 | |
398 | |
337 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
399 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
338 | |
400 | |
339 | /* the next two functions merely cache the padlists */ |
401 | /* the next two functions merely cache the padlists */ |
340 | static void |
402 | static void |
341 | get_padlist (pTHX_ CV *cv) |
403 | get_padlist (pTHX_ CV *cv) |
342 | { |
404 | { |
343 | MAGIC *mg = CORO_MAGIC (cv); |
405 | MAGIC *mg = CORO_MAGIC_cv (cv); |
344 | AV *av; |
406 | AV *av; |
345 | |
407 | |
346 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
408 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
347 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
409 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
348 | else |
410 | else |
349 | { |
411 | { |
350 | #if CORO_PREFER_PERL_FUNCTIONS |
412 | #if CORO_PREFER_PERL_FUNCTIONS |
351 | /* this is probably cleaner, but also slower? */ |
413 | /* this is probably cleaner, but also slower? */ |
… | |
… | |
360 | } |
422 | } |
361 | |
423 | |
362 | static void |
424 | static void |
363 | put_padlist (pTHX_ CV *cv) |
425 | put_padlist (pTHX_ CV *cv) |
364 | { |
426 | { |
365 | MAGIC *mg = CORO_MAGIC (cv); |
427 | MAGIC *mg = CORO_MAGIC_cv (cv); |
366 | AV *av; |
428 | AV *av; |
367 | |
429 | |
368 | if (!mg) |
430 | if (expect_false (!mg)) |
369 | { |
431 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
370 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
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371 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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372 | mg->mg_virtual = &vtbl_coro; |
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373 | mg->mg_obj = (SV *)newAV (); |
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374 | } |
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375 | |
432 | |
376 | av = (AV *)mg->mg_obj; |
433 | av = (AV *)mg->mg_obj; |
377 | |
434 | |
378 | if (AvFILLp (av) >= AvMAX (av)) |
435 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
379 | av_extend (av, AvMAX (av) + 1); |
436 | av_extend (av, AvMAX (av) + 1); |
380 | |
437 | |
381 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
438 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
382 | } |
439 | } |
383 | |
440 | |
384 | /** load & save, init *******************************************************/ |
441 | /** load & save, init *******************************************************/ |
385 | |
442 | |
386 | static void |
443 | static void |
387 | load_perl (pTHX_ Coro__State c) |
444 | load_perl (pTHX_ Coro__State c) |
388 | { |
445 | { |
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446 | perl_slots *slot = c->slot; |
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447 | c->slot = 0; |
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448 | |
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449 | PL_mainstack = c->mainstack; |
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450 | |
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451 | GvSV (PL_defgv) = slot->defsv; |
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452 | GvAV (PL_defgv) = slot->defav; |
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453 | GvSV (PL_errgv) = slot->errsv; |
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454 | GvSV (irsgv) = slot->irsgv; |
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455 | |
389 | #define VAR(name,type) PL_ ## name = c->name; |
456 | #define VAR(name,type) PL_ ## name = slot->name; |
390 | # include "state.h" |
457 | # include "state.h" |
391 | #undef VAR |
458 | #undef VAR |
392 | |
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393 | GvSV (PL_defgv) = c->defsv; |
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394 | GvAV (PL_defgv) = c->defav; |
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395 | GvSV (PL_errgv) = c->errsv; |
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396 | GvSV (irsgv) = c->irssv_sv; |
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397 | |
459 | |
398 | { |
460 | { |
399 | dSP; |
461 | dSP; |
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462 | |
400 | CV *cv; |
463 | CV *cv; |
401 | |
464 | |
402 | /* now do the ugly restore mess */ |
465 | /* now do the ugly restore mess */ |
403 | while ((cv = (CV *)POPs)) |
466 | while (expect_true (cv = (CV *)POPs)) |
404 | { |
467 | { |
405 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
468 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
406 | CvDEPTH (cv) = PTR2IV (POPs); |
469 | CvDEPTH (cv) = PTR2IV (POPs); |
407 | CvPADLIST (cv) = (AV *)POPs; |
470 | CvPADLIST (cv) = (AV *)POPs; |
408 | } |
471 | } |
… | |
… | |
427 | |
490 | |
428 | XPUSHs (Nullsv); |
491 | XPUSHs (Nullsv); |
429 | /* this loop was inspired by pp_caller */ |
492 | /* this loop was inspired by pp_caller */ |
430 | for (;;) |
493 | for (;;) |
431 | { |
494 | { |
432 | while (cxix >= 0) |
495 | while (expect_true (cxix >= 0)) |
433 | { |
496 | { |
434 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
497 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
435 | |
498 | |
436 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
499 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
437 | { |
500 | { |
438 | CV *cv = cx->blk_sub.cv; |
501 | CV *cv = cx->blk_sub.cv; |
439 | |
502 | |
440 | if (CvDEPTH (cv)) |
503 | if (expect_true (CvDEPTH (cv))) |
441 | { |
504 | { |
442 | EXTEND (SP, 3); |
505 | EXTEND (SP, 3); |
443 | PUSHs ((SV *)CvPADLIST (cv)); |
506 | PUSHs ((SV *)CvPADLIST (cv)); |
444 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
507 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
445 | PUSHs ((SV *)cv); |
508 | PUSHs ((SV *)cv); |
… | |
… | |
448 | get_padlist (aTHX_ cv); |
511 | get_padlist (aTHX_ cv); |
449 | } |
512 | } |
450 | } |
513 | } |
451 | } |
514 | } |
452 | |
515 | |
453 | if (top_si->si_type == PERLSI_MAIN) |
516 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
454 | break; |
517 | break; |
455 | |
518 | |
456 | top_si = top_si->si_prev; |
519 | top_si = top_si->si_prev; |
457 | ccstk = top_si->si_cxstack; |
520 | ccstk = top_si->si_cxstack; |
458 | cxix = top_si->si_cxix; |
521 | cxix = top_si->si_cxix; |
459 | } |
522 | } |
460 | |
523 | |
461 | PUTBACK; |
524 | PUTBACK; |
462 | } |
525 | } |
463 | |
526 | |
|
|
527 | /* allocate some space on the context stack for our purposes */ |
|
|
528 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
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 */ |
|
|
538 | |
|
|
539 | c->mainstack = PL_mainstack; |
|
|
540 | |
|
|
541 | { |
|
|
542 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
543 | |
464 | c->defav = GvAV (PL_defgv); |
544 | slot->defav = GvAV (PL_defgv); |
465 | c->defsv = DEFSV; |
545 | slot->defsv = DEFSV; |
466 | c->errsv = ERRSV; |
546 | slot->errsv = ERRSV; |
467 | c->irssv_sv = GvSV (irsgv); |
547 | slot->irsgv = GvSV (irsgv); |
468 | |
548 | |
469 | #define VAR(name,type)c->name = PL_ ## name; |
549 | #define VAR(name,type) slot->name = PL_ ## name; |
470 | # include "state.h" |
550 | # include "state.h" |
471 | #undef VAR |
551 | #undef VAR |
|
|
552 | } |
472 | } |
553 | } |
473 | |
554 | |
474 | /* |
555 | /* |
475 | * allocate various perl stacks. This is an exact copy |
556 | * allocate various perl stacks. This is an exact copy |
476 | * of perl.c:init_stacks, except that it uses less memory |
557 | * of perl.c:init_stacks, except that it uses less memory |
… | |
… | |
481 | # define coro_init_stacks init_stacks |
562 | # define coro_init_stacks init_stacks |
482 | #else |
563 | #else |
483 | static void |
564 | static void |
484 | coro_init_stacks (pTHX) |
565 | coro_init_stacks (pTHX) |
485 | { |
566 | { |
486 | PL_curstackinfo = new_stackinfo(64, 6); |
567 | PL_curstackinfo = new_stackinfo(32, 8); |
487 | PL_curstackinfo->si_type = PERLSI_MAIN; |
568 | PL_curstackinfo->si_type = PERLSI_MAIN; |
488 | PL_curstack = PL_curstackinfo->si_stack; |
569 | PL_curstack = PL_curstackinfo->si_stack; |
489 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
570 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
490 | |
571 | |
491 | PL_stack_base = AvARRAY(PL_curstack); |
572 | PL_stack_base = AvARRAY(PL_curstack); |
492 | PL_stack_sp = PL_stack_base; |
573 | PL_stack_sp = PL_stack_base; |
493 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
574 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
494 | |
575 | |
495 | New(50,PL_tmps_stack,64,SV*); |
576 | New(50,PL_tmps_stack,32,SV*); |
496 | PL_tmps_floor = -1; |
577 | PL_tmps_floor = -1; |
497 | PL_tmps_ix = -1; |
578 | PL_tmps_ix = -1; |
498 | PL_tmps_max = 64; |
579 | PL_tmps_max = 32; |
499 | |
580 | |
500 | New(54,PL_markstack,16,I32); |
581 | New(54,PL_markstack,16,I32); |
501 | PL_markstack_ptr = PL_markstack; |
582 | PL_markstack_ptr = PL_markstack; |
502 | PL_markstack_max = PL_markstack + 16; |
583 | PL_markstack_max = PL_markstack + 16; |
503 | |
584 | |
504 | #ifdef SET_MARK_OFFSET |
585 | #ifdef SET_MARK_OFFSET |
505 | SET_MARK_OFFSET; |
586 | SET_MARK_OFFSET; |
506 | #endif |
587 | #endif |
507 | |
588 | |
508 | New(54,PL_scopestack,16,I32); |
589 | New(54,PL_scopestack,8,I32); |
509 | PL_scopestack_ix = 0; |
590 | PL_scopestack_ix = 0; |
510 | PL_scopestack_max = 16; |
591 | PL_scopestack_max = 8; |
511 | |
592 | |
512 | New(54,PL_savestack,64,ANY); |
593 | New(54,PL_savestack,24,ANY); |
513 | PL_savestack_ix = 0; |
594 | PL_savestack_ix = 0; |
514 | PL_savestack_max = 64; |
595 | PL_savestack_max = 24; |
515 | |
596 | |
516 | #if !PERL_VERSION_ATLEAST (5,9,0) |
597 | #if !PERL_VERSION_ATLEAST (5,10,0) |
517 | New(54,PL_retstack,4,OP*); |
598 | New(54,PL_retstack,4,OP*); |
518 | PL_retstack_ix = 0; |
599 | PL_retstack_ix = 0; |
519 | PL_retstack_max = 4; |
600 | PL_retstack_max = 4; |
520 | #endif |
601 | #endif |
521 | } |
602 | } |
… | |
… | |
544 | |
625 | |
545 | Safefree (PL_tmps_stack); |
626 | Safefree (PL_tmps_stack); |
546 | Safefree (PL_markstack); |
627 | Safefree (PL_markstack); |
547 | Safefree (PL_scopestack); |
628 | Safefree (PL_scopestack); |
548 | Safefree (PL_savestack); |
629 | Safefree (PL_savestack); |
549 | #if !PERL_VERSION_ATLEAST (5,9,0) |
630 | #if !PERL_VERSION_ATLEAST (5,10,0) |
550 | Safefree (PL_retstack); |
631 | Safefree (PL_retstack); |
551 | #endif |
632 | #endif |
552 | } |
633 | } |
553 | |
634 | |
554 | static size_t |
635 | static size_t |
… | |
… | |
556 | { |
637 | { |
557 | size_t rss = sizeof (*coro); |
638 | size_t rss = sizeof (*coro); |
558 | |
639 | |
559 | if (coro->mainstack) |
640 | if (coro->mainstack) |
560 | { |
641 | { |
|
|
642 | perl_slots tmp_slot; |
|
|
643 | perl_slots *slot; |
|
|
644 | |
561 | if (coro->flags & CF_RUNNING) |
645 | if (coro->flags & CF_RUNNING) |
562 | { |
646 | { |
|
|
647 | slot = &tmp_slot; |
|
|
648 | |
563 | #define VAR(name,type)coro->name = PL_ ## name; |
649 | #define VAR(name,type) slot->name = PL_ ## name; |
564 | # include "state.h" |
650 | # include "state.h" |
565 | #undef VAR |
651 | #undef VAR |
566 | } |
652 | } |
|
|
653 | else |
|
|
654 | slot = coro->slot; |
567 | |
655 | |
568 | rss += sizeof (coro->curstackinfo); |
656 | rss += sizeof (slot->curstackinfo); |
569 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
570 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
657 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
571 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
658 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
572 | rss += coro->tmps_max * sizeof (SV *); |
659 | rss += slot->tmps_max * sizeof (SV *); |
573 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
660 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
574 | rss += coro->scopestack_max * sizeof (I32); |
661 | rss += slot->scopestack_max * sizeof (I32); |
575 | rss += coro->savestack_max * sizeof (ANY); |
662 | rss += slot->savestack_max * sizeof (ANY); |
576 | |
663 | |
577 | #if !PERL_VERSION_ATLEAST (5,9,0) |
664 | #if !PERL_VERSION_ATLEAST (5,10,0) |
578 | rss += coro->retstack_max * sizeof (OP *); |
665 | rss += slot->retstack_max * sizeof (OP *); |
579 | #endif |
666 | #endif |
580 | } |
667 | } |
581 | |
668 | |
582 | return rss; |
669 | return rss; |
583 | } |
670 | } |
584 | |
671 | |
585 | /** coroutine stack handling ************************************************/ |
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 | } |
586 | |
723 | |
587 | static void |
724 | static void |
588 | coro_setup (pTHX_ struct coro *coro) |
725 | coro_setup (pTHX_ struct coro *coro) |
589 | { |
726 | { |
590 | /* |
727 | /* |
… | |
… | |
595 | PL_runops = RUNOPS_DEFAULT; |
732 | PL_runops = RUNOPS_DEFAULT; |
596 | PL_curcop = &PL_compiling; |
733 | PL_curcop = &PL_compiling; |
597 | PL_in_eval = EVAL_NULL; |
734 | PL_in_eval = EVAL_NULL; |
598 | PL_comppad = 0; |
735 | PL_comppad = 0; |
599 | PL_curpm = 0; |
736 | PL_curpm = 0; |
|
|
737 | PL_curpad = 0; |
600 | PL_localizing = 0; |
738 | PL_localizing = 0; |
601 | PL_dirty = 0; |
739 | PL_dirty = 0; |
602 | PL_restartop = 0; |
740 | PL_restartop = 0; |
|
|
741 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
742 | PL_parser = 0; |
|
|
743 | #endif |
|
|
744 | |
|
|
745 | /* recreate the die/warn hooks */ |
|
|
746 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
747 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
603 | |
748 | |
604 | GvSV (PL_defgv) = NEWSV (0, 0); |
749 | GvSV (PL_defgv) = newSV (0); |
605 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
750 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
606 | GvSV (PL_errgv) = NEWSV (0, 0); |
751 | GvSV (PL_errgv) = newSV (0); |
607 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
752 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
608 | PL_rs = newSVsv (GvSV (irsgv)); |
753 | PL_rs = newSVsv (GvSV (irsgv)); |
609 | PL_defoutgv = SvREFCNT_inc (stdoutgv); |
754 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
610 | |
755 | |
611 | { |
756 | { |
612 | dSP; |
757 | dSP; |
613 | LOGOP myop; |
758 | LOGOP myop; |
614 | |
759 | |
615 | Zero (&myop, 1, LOGOP); |
760 | Zero (&myop, 1, LOGOP); |
616 | myop.op_next = Nullop; |
761 | myop.op_next = Nullop; |
617 | myop.op_flags = OPf_WANT_VOID; |
762 | myop.op_flags = OPf_WANT_VOID; |
618 | |
763 | |
619 | PUSHMARK (SP); |
764 | PUSHMARK (SP); |
620 | XPUSHs (av_shift (GvAV (PL_defgv))); |
765 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
621 | PUTBACK; |
766 | PUTBACK; |
622 | PL_op = (OP *)&myop; |
767 | PL_op = (OP *)&myop; |
623 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
768 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
624 | SPAGAIN; |
769 | SPAGAIN; |
625 | } |
770 | } |
626 | |
771 | |
627 | ENTER; /* necessary e.g. for dounwind */ |
772 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
773 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
774 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
775 | * so we ENTER here for symmetry |
|
|
776 | */ |
|
|
777 | ENTER; |
628 | } |
778 | } |
629 | |
779 | |
630 | static void |
780 | static void |
631 | coro_destroy (pTHX_ struct coro *coro) |
781 | coro_destroy (pTHX_ struct coro *coro) |
632 | { |
782 | { |
… | |
… | |
652 | SvREFCNT_dec (GvSV (PL_errgv)); |
802 | SvREFCNT_dec (GvSV (PL_errgv)); |
653 | SvREFCNT_dec (PL_defoutgv); |
803 | SvREFCNT_dec (PL_defoutgv); |
654 | SvREFCNT_dec (PL_rs); |
804 | SvREFCNT_dec (PL_rs); |
655 | SvREFCNT_dec (GvSV (irsgv)); |
805 | SvREFCNT_dec (GvSV (irsgv)); |
656 | |
806 | |
|
|
807 | SvREFCNT_dec (PL_diehook); |
|
|
808 | SvREFCNT_dec (PL_warnhook); |
|
|
809 | |
657 | SvREFCNT_dec (coro->saved_deffh); |
810 | SvREFCNT_dec (coro->saved_deffh); |
658 | //SvREFCNT_dec (coro->throw); |
811 | SvREFCNT_dec (coro->throw); |
659 | |
812 | |
660 | coro_destroy_stacks (aTHX); |
813 | coro_destroy_stacks (aTHX); |
661 | } |
814 | } |
662 | |
815 | |
663 | static void |
816 | static void |
664 | free_coro_mortal (pTHX) |
817 | free_coro_mortal (pTHX) |
665 | { |
818 | { |
666 | if (coro_mortal) |
819 | if (expect_true (coro_mortal)) |
667 | { |
820 | { |
668 | SvREFCNT_dec (coro_mortal); |
821 | SvREFCNT_dec (coro_mortal); |
669 | coro_mortal = 0; |
822 | coro_mortal = 0; |
670 | } |
823 | } |
671 | } |
824 | } |
… | |
… | |
700 | bot = PL_stack_base + cx->blk_oldsp + 1; |
853 | bot = PL_stack_base + cx->blk_oldsp + 1; |
701 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
854 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
702 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
855 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
703 | : bot; |
856 | : bot; |
704 | |
857 | |
|
|
858 | av_extend (av, top - bot); |
705 | while (bot < top) |
859 | while (bot < top) |
706 | av_push (av, SvREFCNT_inc (*bot++)); |
860 | av_push (av, SvREFCNT_inc (*bot++)); |
707 | |
861 | |
708 | PL_runops = RUNOPS_DEFAULT; |
862 | PL_runops = RUNOPS_DEFAULT; |
709 | ENTER; |
863 | ENTER; |
… | |
… | |
749 | SAVETMPS; |
903 | SAVETMPS; |
750 | EXTEND (SP, 3); |
904 | EXTEND (SP, 3); |
751 | PUSHMARK (SP); |
905 | PUSHMARK (SP); |
752 | PUSHs (&PL_sv_yes); |
906 | PUSHs (&PL_sv_yes); |
753 | PUSHs (fullname); |
907 | PUSHs (fullname); |
754 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
908 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
755 | PUTBACK; |
909 | PUTBACK; |
756 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
910 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
757 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
911 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
758 | SPAGAIN; |
912 | SPAGAIN; |
759 | FREETMPS; |
913 | FREETMPS; |
… | |
… | |
795 | |
949 | |
796 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
950 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
797 | /* _cctx_init should be careful, as it could be called at almost any time */ |
951 | /* _cctx_init should be careful, as it could be called at almost any time */ |
798 | /* during execution of a perl program */ |
952 | /* during execution of a perl program */ |
799 | static void NOINLINE |
953 | static void NOINLINE |
800 | prepare_cctx (pTHX_ coro_cctx *cctx) |
954 | cctx_prepare (pTHX_ coro_cctx *cctx) |
801 | { |
955 | { |
802 | dSP; |
956 | dSP; |
803 | LOGOP myop; |
957 | LOGOP myop; |
804 | |
958 | |
805 | PL_top_env = &PL_start_env; |
959 | PL_top_env = &PL_start_env; |
… | |
… | |
823 | |
977 | |
824 | /* |
978 | /* |
825 | * this is a _very_ stripped down perl interpreter ;) |
979 | * this is a _very_ stripped down perl interpreter ;) |
826 | */ |
980 | */ |
827 | static void |
981 | static void |
828 | coro_run (void *arg) |
982 | cctx_run (void *arg) |
829 | { |
983 | { |
830 | dTHX; |
984 | dTHX; |
831 | |
985 | |
832 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
986 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
833 | UNLOCK; |
987 | UNLOCK; |
834 | |
988 | |
835 | /* we now skip the entersub that lead to transfer() */ |
989 | /* we now skip the entersub that lead to transfer() */ |
836 | PL_op = PL_op->op_next; |
990 | PL_op = PL_op->op_next; |
837 | |
991 | |
838 | /* inject a fake subroutine call to cctx_init */ |
992 | /* inject a fake subroutine call to cctx_init */ |
839 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
993 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
840 | |
994 | |
841 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
995 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
842 | PL_restartop = PL_op; |
996 | PL_restartop = PL_op; |
843 | perl_run (PL_curinterp); |
997 | perl_run (PL_curinterp); |
844 | |
998 | |
… | |
… | |
863 | ++cctx_count; |
1017 | ++cctx_count; |
864 | |
1018 | |
865 | Newz (0, cctx, 1, coro_cctx); |
1019 | Newz (0, cctx, 1, coro_cctx); |
866 | |
1020 | |
867 | #if HAVE_MMAP |
1021 | #if HAVE_MMAP |
868 | |
|
|
869 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1022 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
870 | /* mmap supposedly does allocate-on-write for us */ |
1023 | /* mmap supposedly does allocate-on-write for us */ |
871 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1024 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
872 | |
1025 | |
873 | if (cctx->sptr != (void *)-1) |
1026 | if (cctx->sptr != (void *)-1) |
… | |
… | |
894 | stack_start = cctx->sptr; |
1047 | stack_start = cctx->sptr; |
895 | stack_size = cctx->ssize; |
1048 | stack_size = cctx->ssize; |
896 | } |
1049 | } |
897 | |
1050 | |
898 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1051 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
899 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1052 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
900 | |
1053 | |
901 | return cctx; |
1054 | return cctx; |
902 | } |
1055 | } |
903 | |
1056 | |
904 | static void |
1057 | static void |
… | |
… | |
921 | Safefree (cctx->sptr); |
1074 | Safefree (cctx->sptr); |
922 | |
1075 | |
923 | Safefree (cctx); |
1076 | Safefree (cctx); |
924 | } |
1077 | } |
925 | |
1078 | |
|
|
1079 | /* wether this cctx should be destructed */ |
|
|
1080 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1081 | |
926 | static coro_cctx * |
1082 | static coro_cctx * |
927 | cctx_get (pTHX) |
1083 | cctx_get (pTHX) |
928 | { |
1084 | { |
929 | while (cctx_first) |
1085 | while (expect_true (cctx_first)) |
930 | { |
1086 | { |
931 | coro_cctx *cctx = cctx_first; |
1087 | coro_cctx *cctx = cctx_first; |
932 | cctx_first = cctx->next; |
1088 | cctx_first = cctx->next; |
933 | --cctx_idle; |
1089 | --cctx_idle; |
934 | |
1090 | |
935 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1091 | if (expect_true (!CCTX_EXPIRED (cctx))) |
936 | return cctx; |
1092 | return cctx; |
937 | |
1093 | |
938 | cctx_destroy (cctx); |
1094 | cctx_destroy (cctx); |
939 | } |
1095 | } |
940 | |
1096 | |
… | |
… | |
943 | |
1099 | |
944 | static void |
1100 | static void |
945 | cctx_put (coro_cctx *cctx) |
1101 | cctx_put (coro_cctx *cctx) |
946 | { |
1102 | { |
947 | /* free another cctx if overlimit */ |
1103 | /* free another cctx if overlimit */ |
948 | if (cctx_idle >= MAX_IDLE_CCTX) |
1104 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
949 | { |
1105 | { |
950 | coro_cctx *first = cctx_first; |
1106 | coro_cctx *first = cctx_first; |
951 | cctx_first = first->next; |
1107 | cctx_first = first->next; |
952 | --cctx_idle; |
1108 | --cctx_idle; |
953 | |
1109 | |
… | |
… | |
959 | cctx_first = cctx; |
1115 | cctx_first = cctx; |
960 | } |
1116 | } |
961 | |
1117 | |
962 | /** coroutine switching *****************************************************/ |
1118 | /** coroutine switching *****************************************************/ |
963 | |
1119 | |
964 | static void NOINLINE |
1120 | static void |
965 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1121 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
966 | { |
1122 | { |
967 | if (prev != next) |
1123 | if (expect_true (prev != next)) |
968 | { |
1124 | { |
969 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1125 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
970 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1126 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
971 | |
1127 | |
972 | if (next->flags & CF_RUNNING) |
1128 | if (expect_false (next->flags & CF_RUNNING)) |
973 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1129 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
974 | |
1130 | |
975 | if (next->flags & CF_DESTROYED) |
1131 | if (expect_false (next->flags & CF_DESTROYED)) |
976 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1132 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
977 | |
1133 | |
|
|
1134 | #if !PERL_VERSION_ATLEAST (5,10,0) |
978 | if (PL_lex_state != LEX_NOTPARSING) |
1135 | if (expect_false (PL_lex_state != LEX_NOTPARSING) |
979 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1136 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
1137 | #endif |
980 | } |
1138 | } |
981 | } |
1139 | } |
982 | |
1140 | |
983 | /* always use the TRANSFER macro */ |
1141 | /* always use the TRANSFER macro */ |
984 | static void NOINLINE |
1142 | static void NOINLINE |
985 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1143 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
986 | { |
1144 | { |
987 | dSTACKLEVEL; |
1145 | dSTACKLEVEL; |
|
|
1146 | static volatile int has_throw; |
988 | |
1147 | |
989 | /* sometimes transfer is only called to set idle_sp */ |
1148 | /* sometimes transfer is only called to set idle_sp */ |
990 | if (!next) |
1149 | if (expect_false (!next)) |
991 | { |
1150 | { |
992 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1151 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
993 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1152 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
994 | } |
1153 | } |
995 | else if (prev != next) |
1154 | else if (expect_true (prev != next)) |
996 | { |
1155 | { |
997 | coro_cctx *prev__cctx; |
1156 | coro_cctx *prev__cctx; |
998 | |
1157 | |
999 | if (prev->flags & CF_NEW) |
1158 | if (expect_false (prev->flags & CF_NEW)) |
1000 | { |
1159 | { |
1001 | /* create a new empty context */ |
1160 | /* create a new empty context */ |
1002 | Newz (0, prev->cctx, 1, coro_cctx); |
1161 | Newz (0, prev->cctx, 1, coro_cctx); |
1003 | prev->flags &= ~CF_NEW; |
1162 | prev->flags &= ~CF_NEW; |
1004 | prev->flags |= CF_RUNNING; |
1163 | prev->flags |= CF_RUNNING; |
… | |
… | |
1007 | prev->flags &= ~CF_RUNNING; |
1166 | prev->flags &= ~CF_RUNNING; |
1008 | next->flags |= CF_RUNNING; |
1167 | next->flags |= CF_RUNNING; |
1009 | |
1168 | |
1010 | LOCK; |
1169 | LOCK; |
1011 | |
1170 | |
|
|
1171 | /* first get rid of the old state */ |
|
|
1172 | save_perl (aTHX_ prev); |
|
|
1173 | |
1012 | if (next->flags & CF_NEW) |
1174 | if (expect_false (next->flags & CF_NEW)) |
1013 | { |
1175 | { |
1014 | /* need to start coroutine */ |
1176 | /* need to start coroutine */ |
1015 | next->flags &= ~CF_NEW; |
1177 | next->flags &= ~CF_NEW; |
1016 | /* first get rid of the old state */ |
|
|
1017 | save_perl (aTHX_ prev); |
|
|
1018 | /* setup coroutine call */ |
1178 | /* setup coroutine call */ |
1019 | coro_setup (aTHX_ next); |
1179 | coro_setup (aTHX_ next); |
1020 | } |
1180 | } |
1021 | else |
1181 | else |
1022 | { |
|
|
1023 | /* coroutine already started */ |
|
|
1024 | save_perl (aTHX_ prev); |
|
|
1025 | load_perl (aTHX_ next); |
1182 | load_perl (aTHX_ next); |
1026 | } |
|
|
1027 | |
1183 | |
1028 | prev__cctx = prev->cctx; |
1184 | prev__cctx = prev->cctx; |
1029 | |
1185 | |
1030 | /* possibly "free" the cctx */ |
1186 | /* possibly "free" the cctx */ |
1031 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
1187 | if (expect_true ( |
|
|
1188 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1189 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1190 | && !force_cctx |
|
|
1191 | )) |
1032 | { |
1192 | { |
1033 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1193 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1034 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1194 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1035 | |
1195 | |
1036 | prev->cctx = 0; |
1196 | prev->cctx = 0; |
1037 | |
1197 | |
|
|
1198 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1199 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1200 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1201 | if (!next->cctx) |
|
|
1202 | next->cctx = cctx_get (aTHX); |
|
|
1203 | |
1038 | cctx_put (prev__cctx); |
1204 | cctx_put (prev__cctx); |
1039 | } |
1205 | } |
1040 | |
1206 | |
1041 | ++next->usecount; |
1207 | ++next->usecount; |
1042 | |
1208 | |
1043 | if (!next->cctx) |
1209 | if (expect_true (!next->cctx)) |
1044 | next->cctx = cctx_get (aTHX); |
1210 | next->cctx = cctx_get (aTHX); |
1045 | |
1211 | |
|
|
1212 | has_throw = !!next->throw; |
|
|
1213 | |
1046 | if (prev__cctx != next->cctx) |
1214 | if (expect_false (prev__cctx != next->cctx)) |
1047 | { |
1215 | { |
1048 | prev__cctx->top_env = PL_top_env; |
1216 | prev__cctx->top_env = PL_top_env; |
1049 | PL_top_env = next->cctx->top_env; |
1217 | PL_top_env = next->cctx->top_env; |
1050 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1218 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1051 | } |
1219 | } |
1052 | |
1220 | |
1053 | free_coro_mortal (aTHX); |
1221 | free_coro_mortal (aTHX); |
1054 | UNLOCK; |
1222 | UNLOCK; |
|
|
1223 | |
|
|
1224 | if (expect_false (has_throw)) |
|
|
1225 | { |
|
|
1226 | struct coro *coro = SvSTATE (coro_current); |
|
|
1227 | |
|
|
1228 | if (coro->throw) |
|
|
1229 | { |
|
|
1230 | SV *exception = coro->throw; |
|
|
1231 | coro->throw = 0; |
|
|
1232 | sv_setsv (ERRSV, exception); |
|
|
1233 | croak (0); |
|
|
1234 | } |
|
|
1235 | } |
1055 | } |
1236 | } |
1056 | } |
1237 | } |
1057 | |
1238 | |
1058 | struct transfer_args |
1239 | struct transfer_args |
1059 | { |
1240 | { |
1060 | struct coro *prev, *next; |
1241 | struct coro *prev, *next; |
1061 | }; |
1242 | }; |
1062 | |
1243 | |
1063 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1244 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1064 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1245 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1065 | |
1246 | |
1066 | /** high level stuff ********************************************************/ |
1247 | /** high level stuff ********************************************************/ |
1067 | |
1248 | |
1068 | static int |
1249 | static int |
… | |
… | |
1094 | save_perl (aTHX_ &temp); |
1275 | save_perl (aTHX_ &temp); |
1095 | load_perl (aTHX_ coro); |
1276 | load_perl (aTHX_ coro); |
1096 | |
1277 | |
1097 | coro_destroy (aTHX_ coro); |
1278 | coro_destroy (aTHX_ coro); |
1098 | |
1279 | |
1099 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1280 | load_perl (aTHX_ &temp); |
1100 | |
1281 | |
1101 | coro->mainstack = 0; |
1282 | coro->slot = 0; |
1102 | } |
1283 | } |
1103 | |
1284 | |
1104 | cctx_destroy (coro->cctx); |
1285 | cctx_destroy (coro->cctx); |
1105 | SvREFCNT_dec (coro->args); |
1286 | SvREFCNT_dec (coro->args); |
1106 | |
1287 | |
… | |
… | |
1162 | { |
1343 | { |
1163 | dTHX; |
1344 | dTHX; |
1164 | struct transfer_args ta; |
1345 | struct transfer_args ta; |
1165 | |
1346 | |
1166 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1347 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1167 | TRANSFER (ta); |
1348 | TRANSFER (ta, 1); |
1168 | } |
1349 | } |
1169 | |
1350 | |
1170 | /** Coro ********************************************************************/ |
1351 | /** Coro ********************************************************************/ |
1171 | |
1352 | |
1172 | static void |
1353 | static void |
… | |
… | |
1174 | { |
1355 | { |
1175 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1356 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1176 | } |
1357 | } |
1177 | |
1358 | |
1178 | static SV * |
1359 | static SV * |
1179 | coro_deq (pTHX_ int min_prio) |
1360 | coro_deq (pTHX) |
1180 | { |
1361 | { |
1181 | int prio = PRIO_MAX - PRIO_MIN; |
1362 | int prio; |
1182 | |
1363 | |
1183 | min_prio -= PRIO_MIN; |
|
|
1184 | if (min_prio < 0) |
|
|
1185 | min_prio = 0; |
|
|
1186 | |
|
|
1187 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1364 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1188 | if (AvFILLp (coro_ready [prio]) >= 0) |
1365 | if (AvFILLp (coro_ready [prio]) >= 0) |
1189 | return av_shift (coro_ready [prio]); |
1366 | return av_shift (coro_ready [prio]); |
1190 | |
1367 | |
1191 | return 0; |
1368 | return 0; |
1192 | } |
1369 | } |
… | |
… | |
1228 | SV *prev_sv, *next_sv; |
1405 | SV *prev_sv, *next_sv; |
1229 | |
1406 | |
1230 | for (;;) |
1407 | for (;;) |
1231 | { |
1408 | { |
1232 | LOCK; |
1409 | LOCK; |
1233 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1410 | next_sv = coro_deq (aTHX); |
1234 | |
1411 | |
1235 | /* nothing to schedule: call the idle handler */ |
1412 | /* nothing to schedule: call the idle handler */ |
1236 | if (!next_sv) |
1413 | if (expect_false (!next_sv)) |
1237 | { |
1414 | { |
1238 | dSP; |
1415 | dSP; |
1239 | UNLOCK; |
1416 | UNLOCK; |
1240 | |
1417 | |
1241 | ENTER; |
1418 | ENTER; |
1242 | SAVETMPS; |
1419 | SAVETMPS; |
1243 | |
1420 | |
1244 | PUSHMARK (SP); |
1421 | PUSHMARK (SP); |
1245 | PUTBACK; |
1422 | PUTBACK; |
1246 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1423 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1424 | SPAGAIN; |
1247 | |
1425 | |
1248 | FREETMPS; |
1426 | FREETMPS; |
1249 | LEAVE; |
1427 | LEAVE; |
1250 | continue; |
1428 | continue; |
1251 | } |
1429 | } |
1252 | |
1430 | |
1253 | ta->next = SvSTATE (next_sv); |
1431 | ta->next = SvSTATE (next_sv); |
1254 | |
1432 | |
1255 | /* cannot transfer to destroyed coros, skip and look for next */ |
1433 | /* cannot transfer to destroyed coros, skip and look for next */ |
1256 | if (ta->next->flags & CF_DESTROYED) |
1434 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1257 | { |
1435 | { |
1258 | UNLOCK; |
1436 | UNLOCK; |
1259 | SvREFCNT_dec (next_sv); |
1437 | SvREFCNT_dec (next_sv); |
1260 | /* coro_nready is already taken care of by destroy */ |
1438 | /* coro_nready is already taken care of by destroy */ |
1261 | continue; |
1439 | continue; |
… | |
… | |
1306 | { |
1484 | { |
1307 | dTHX; |
1485 | dTHX; |
1308 | struct transfer_args ta; |
1486 | struct transfer_args ta; |
1309 | |
1487 | |
1310 | prepare_schedule (aTHX_ &ta); |
1488 | prepare_schedule (aTHX_ &ta); |
1311 | TRANSFER (ta); |
1489 | TRANSFER (ta, 1); |
1312 | } |
1490 | } |
1313 | |
1491 | |
1314 | static int |
1492 | static int |
1315 | api_cede (void) |
1493 | api_cede (void) |
1316 | { |
1494 | { |
1317 | dTHX; |
1495 | dTHX; |
1318 | struct transfer_args ta; |
1496 | struct transfer_args ta; |
1319 | |
1497 | |
1320 | prepare_cede (aTHX_ &ta); |
1498 | prepare_cede (aTHX_ &ta); |
1321 | |
1499 | |
1322 | if (ta.prev != ta.next) |
1500 | if (expect_true (ta.prev != ta.next)) |
1323 | { |
1501 | { |
1324 | TRANSFER (ta); |
1502 | TRANSFER (ta, 1); |
1325 | return 1; |
1503 | return 1; |
1326 | } |
1504 | } |
1327 | else |
1505 | else |
1328 | return 0; |
1506 | return 0; |
1329 | } |
1507 | } |
… | |
… | |
1334 | dTHX; |
1512 | dTHX; |
1335 | struct transfer_args ta; |
1513 | struct transfer_args ta; |
1336 | |
1514 | |
1337 | if (prepare_cede_notself (aTHX_ &ta)) |
1515 | if (prepare_cede_notself (aTHX_ &ta)) |
1338 | { |
1516 | { |
1339 | TRANSFER (ta); |
1517 | TRANSFER (ta, 1); |
1340 | return 1; |
1518 | return 1; |
1341 | } |
1519 | } |
1342 | else |
1520 | else |
1343 | return 0; |
1521 | return 0; |
1344 | } |
1522 | } |
… | |
… | |
1363 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1541 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1364 | |
1542 | |
1365 | if (coro->flags & CF_RUNNING) |
1543 | if (coro->flags & CF_RUNNING) |
1366 | PL_runops = RUNOPS_DEFAULT; |
1544 | PL_runops = RUNOPS_DEFAULT; |
1367 | else |
1545 | else |
1368 | coro->runops = RUNOPS_DEFAULT; |
1546 | coro->slot->runops = RUNOPS_DEFAULT; |
1369 | } |
1547 | } |
1370 | } |
1548 | } |
1371 | |
1549 | |
1372 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1550 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1373 | |
1551 | |
… | |
… | |
1378 | #ifdef USE_ITHREADS |
1556 | #ifdef USE_ITHREADS |
1379 | MUTEX_INIT (&coro_mutex); |
1557 | MUTEX_INIT (&coro_mutex); |
1380 | #endif |
1558 | #endif |
1381 | BOOT_PAGESIZE; |
1559 | BOOT_PAGESIZE; |
1382 | |
1560 | |
1383 | irsgv = gv_fetchpv ("/" , GV_ADD, SVt_PV); |
1561 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1384 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD, SVt_PVIO); |
1562 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1563 | |
|
|
1564 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; |
|
|
1565 | PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1566 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; |
|
|
1567 | PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1568 | |
|
|
1569 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1570 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1571 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1385 | |
1572 | |
1386 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1573 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1387 | |
1574 | |
1388 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1575 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1389 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1576 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1395 | |
1582 | |
1396 | while (main_top_env->je_prev) |
1583 | while (main_top_env->je_prev) |
1397 | main_top_env = main_top_env->je_prev; |
1584 | main_top_env = main_top_env->je_prev; |
1398 | |
1585 | |
1399 | coroapi.ver = CORO_API_VERSION; |
1586 | coroapi.ver = CORO_API_VERSION; |
|
|
1587 | coroapi.rev = CORO_API_REVISION; |
1400 | coroapi.transfer = api_transfer; |
1588 | coroapi.transfer = api_transfer; |
1401 | |
1589 | |
1402 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1590 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1403 | } |
1591 | } |
1404 | |
1592 | |
1405 | SV * |
1593 | SV * |
1406 | new (char *klass, ...) |
1594 | new (char *klass, ...) |
1407 | CODE: |
1595 | CODE: |
1408 | { |
1596 | { |
1409 | struct coro *coro; |
1597 | struct coro *coro; |
|
|
1598 | MAGIC *mg; |
1410 | HV *hv; |
1599 | HV *hv; |
1411 | int i; |
1600 | int i; |
1412 | |
1601 | |
1413 | Newz (0, coro, 1, struct coro); |
1602 | Newz (0, coro, 1, struct coro); |
1414 | coro->args = newAV (); |
1603 | coro->args = newAV (); |
… | |
… | |
1417 | if (coro_first) coro_first->prev = coro; |
1606 | if (coro_first) coro_first->prev = coro; |
1418 | coro->next = coro_first; |
1607 | coro->next = coro_first; |
1419 | coro_first = coro; |
1608 | coro_first = coro; |
1420 | |
1609 | |
1421 | coro->hv = hv = newHV (); |
1610 | coro->hv = hv = newHV (); |
1422 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1611 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1612 | mg->mg_flags |= MGf_DUP; |
1423 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1613 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1424 | |
1614 | |
|
|
1615 | av_extend (coro->args, items - 1); |
1425 | for (i = 1; i < items; i++) |
1616 | for (i = 1; i < items; i++) |
1426 | av_push (coro->args, newSVsv (ST (i))); |
1617 | av_push (coro->args, newSVsv (ST (i))); |
1427 | } |
1618 | } |
1428 | OUTPUT: |
1619 | OUTPUT: |
1429 | RETVAL |
1620 | RETVAL |
… | |
… | |
1440 | Coro::cede_notself = 4 |
1631 | Coro::cede_notself = 4 |
1441 | CODE: |
1632 | CODE: |
1442 | { |
1633 | { |
1443 | struct transfer_args ta; |
1634 | struct transfer_args ta; |
1444 | |
1635 | |
|
|
1636 | PUTBACK; |
1445 | switch (ix) |
1637 | switch (ix) |
1446 | { |
1638 | { |
1447 | case 0: |
1639 | case 0: |
1448 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1640 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1449 | ta.next = 0; |
1641 | ta.next = 0; |
… | |
… | |
1468 | if (!prepare_cede_notself (aTHX_ &ta)) |
1660 | if (!prepare_cede_notself (aTHX_ &ta)) |
1469 | XSRETURN_EMPTY; |
1661 | XSRETURN_EMPTY; |
1470 | |
1662 | |
1471 | break; |
1663 | break; |
1472 | } |
1664 | } |
|
|
1665 | SPAGAIN; |
1473 | |
1666 | |
1474 | BARRIER; |
1667 | BARRIER; |
|
|
1668 | PUTBACK; |
1475 | TRANSFER (ta); |
1669 | TRANSFER (ta, 0); |
1476 | |
1670 | SPAGAIN; /* might be the sp of a different coroutine now */ |
1477 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1671 | /* be extra careful not to ever do anything after TRANSFER */ |
1478 | XSRETURN_YES; |
|
|
1479 | } |
1672 | } |
1480 | |
1673 | |
1481 | bool |
1674 | bool |
1482 | _destroy (SV *coro_sv) |
1675 | _destroy (SV *coro_sv) |
1483 | CODE: |
1676 | CODE: |
… | |
… | |
1532 | CODE: |
1725 | CODE: |
1533 | { |
1726 | { |
1534 | if (coro->mainstack) |
1727 | if (coro->mainstack) |
1535 | { |
1728 | { |
1536 | struct coro temp; |
1729 | struct coro temp; |
1537 | Zero (&temp, 1, struct coro); |
|
|
1538 | |
1730 | |
1539 | if (!(coro->flags & CF_RUNNING)) |
1731 | if (!(coro->flags & CF_RUNNING)) |
1540 | { |
1732 | { |
|
|
1733 | PUTBACK; |
1541 | save_perl (aTHX_ &temp); |
1734 | save_perl (aTHX_ &temp); |
1542 | load_perl (aTHX_ coro); |
1735 | load_perl (aTHX_ coro); |
1543 | } |
1736 | } |
1544 | |
1737 | |
1545 | { |
1738 | { |
1546 | dSP; |
1739 | dSP; |
1547 | ENTER; |
1740 | ENTER; |
1548 | SAVETMPS; |
1741 | SAVETMPS; |
|
|
1742 | PUTBACK; |
|
|
1743 | PUSHSTACK; |
1549 | PUSHMARK (SP); |
1744 | PUSHMARK (SP); |
1550 | PUTBACK; |
1745 | |
1551 | if (ix) |
1746 | if (ix) |
1552 | eval_sv (coderef, 0); |
1747 | eval_sv (coderef, 0); |
1553 | else |
1748 | else |
1554 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1749 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1750 | |
|
|
1751 | POPSTACK; |
1555 | SPAGAIN; |
1752 | SPAGAIN; |
1556 | FREETMPS; |
1753 | FREETMPS; |
1557 | LEAVE; |
1754 | LEAVE; |
1558 | PUTBACK; |
1755 | PUTBACK; |
1559 | } |
1756 | } |
1560 | |
1757 | |
1561 | if (!(coro->flags & CF_RUNNING)) |
1758 | if (!(coro->flags & CF_RUNNING)) |
1562 | { |
1759 | { |
1563 | save_perl (aTHX_ coro); |
1760 | save_perl (aTHX_ coro); |
1564 | load_perl (aTHX_ &temp); |
1761 | load_perl (aTHX_ &temp); |
|
|
1762 | SPAGAIN; |
1565 | } |
1763 | } |
1566 | } |
1764 | } |
1567 | } |
1765 | } |
1568 | |
1766 | |
1569 | SV * |
1767 | SV * |
… | |
… | |
1610 | case 1: RETVAL = coro->usecount; break; |
1808 | case 1: RETVAL = coro->usecount; break; |
1611 | } |
1809 | } |
1612 | OUTPUT: |
1810 | OUTPUT: |
1613 | RETVAL |
1811 | RETVAL |
1614 | |
1812 | |
|
|
1813 | void |
|
|
1814 | force_cctx () |
|
|
1815 | CODE: |
|
|
1816 | struct coro *coro = SvSTATE (coro_current); |
|
|
1817 | coro->cctx->idle_sp = 0; |
1615 | |
1818 | |
1616 | MODULE = Coro::State PACKAGE = Coro |
1819 | MODULE = Coro::State PACKAGE = Coro |
1617 | |
1820 | |
1618 | BOOT: |
1821 | BOOT: |
1619 | { |
1822 | { |
1620 | int i; |
1823 | int i; |
1621 | |
1824 | |
1622 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
1825 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1623 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
1826 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1624 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
1827 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
1625 | |
1828 | |
1626 | coro_current = get_sv ("Coro::current", FALSE); |
1829 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
1627 | SvREADONLY_on (coro_current); |
1830 | SvREADONLY_on (coro_current); |
1628 | |
1831 | |
1629 | coro_stash = gv_stashpv ("Coro", TRUE); |
1832 | coro_stash = gv_stashpv ("Coro", TRUE); |
1630 | |
1833 | |
1631 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1834 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1632 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1835 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1633 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1836 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1634 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1837 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
… | |
… | |
1637 | |
1840 | |
1638 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1841 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1639 | coro_ready[i] = newAV (); |
1842 | coro_ready[i] = newAV (); |
1640 | |
1843 | |
1641 | { |
1844 | { |
1642 | SV *sv = perl_get_sv("Coro::API", 1); |
1845 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1846 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1643 | |
1847 | |
1644 | coroapi.schedule = api_schedule; |
1848 | coroapi.schedule = api_schedule; |
1645 | coroapi.cede = api_cede; |
1849 | coroapi.cede = api_cede; |
1646 | coroapi.cede_notself = api_cede_notself; |
1850 | coroapi.cede_notself = api_cede_notself; |
1647 | coroapi.ready = api_ready; |
1851 | coroapi.ready = api_ready; |
… | |
… | |
1698 | CODE: |
1902 | CODE: |
1699 | RETVAL = coro_nready; |
1903 | RETVAL = coro_nready; |
1700 | OUTPUT: |
1904 | OUTPUT: |
1701 | RETVAL |
1905 | RETVAL |
1702 | |
1906 | |
|
|
1907 | void |
|
|
1908 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1909 | PROTOTYPE: $;$ |
|
|
1910 | CODE: |
|
|
1911 | SvREFCNT_dec (self->throw); |
|
|
1912 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1913 | |
|
|
1914 | void |
|
|
1915 | swap_defsv (Coro::State self) |
|
|
1916 | PROTOTYPE: $ |
|
|
1917 | ALIAS: |
|
|
1918 | swap_defav = 1 |
|
|
1919 | CODE: |
|
|
1920 | if (!self->slot) |
|
|
1921 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
1922 | else |
|
|
1923 | { |
|
|
1924 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
1925 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
1926 | |
|
|
1927 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
1928 | } |
|
|
1929 | |
1703 | # for async_pool speedup |
1930 | # for async_pool speedup |
1704 | void |
1931 | void |
1705 | _pool_1 (SV *cb) |
1932 | _pool_1 (SV *cb) |
1706 | CODE: |
1933 | CODE: |
1707 | { |
1934 | { |
… | |
… | |
1711 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1938 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1712 | AV *invoke_av; |
1939 | AV *invoke_av; |
1713 | int i, len; |
1940 | int i, len; |
1714 | |
1941 | |
1715 | if (!invoke) |
1942 | if (!invoke) |
|
|
1943 | { |
|
|
1944 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
1716 | croak ("\3terminate\2\n"); |
1945 | croak ("\3async_pool terminate\2\n"); |
|
|
1946 | } |
1717 | |
1947 | |
1718 | SvREFCNT_dec (coro->saved_deffh); |
1948 | SvREFCNT_dec (coro->saved_deffh); |
1719 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
1949 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
1720 | |
1950 | |
1721 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1951 | hv_store (hv, "desc", sizeof ("desc") - 1, |
… | |
… | |
1747 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1977 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1748 | coro->saved_deffh = 0; |
1978 | coro->saved_deffh = 0; |
1749 | |
1979 | |
1750 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
1980 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
1751 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
1981 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1982 | { |
|
|
1983 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
1752 | croak ("\3terminate\2\n"); |
1984 | croak ("\3async_pool terminate\2\n"); |
|
|
1985 | } |
1753 | |
1986 | |
1754 | av_clear (GvAV (PL_defgv)); |
1987 | av_clear (GvAV (PL_defgv)); |
1755 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
1988 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
1756 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1989 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1757 | |
1990 | |