… | |
… | |
16 | |
16 | |
17 | #ifdef WIN32 |
17 | #ifdef WIN32 |
18 | # undef setjmp |
18 | # undef setjmp |
19 | # undef longjmp |
19 | # undef longjmp |
20 | # undef _exit |
20 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
21 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
22 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
24 | #endif |
25 | |
25 | |
26 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
… | |
… | |
55 | |
55 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
57 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
58 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
59 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
61 | |
61 | |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
63 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
64 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
65 | # endif |
65 | # endif |
… | |
… | |
95 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
96 | #endif |
96 | #endif |
97 | #ifndef newSV |
97 | #ifndef newSV |
98 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
99 | #endif |
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
|
101 | # define CvISXSUB_on(cv) (void)cv |
|
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102 | #endif |
|
|
103 | #ifndef CvISXSUB |
|
|
104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
|
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105 | #endif |
|
|
106 | #ifndef Newx |
|
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107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
|
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108 | #endif |
100 | |
109 | |
101 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
113 | #endif |
… | |
… | |
117 | #endif |
126 | #endif |
118 | |
127 | |
119 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
129 | * portable way as possible. */ |
121 | #if __GNUC__ >= 4 |
130 | #if __GNUC__ >= 4 |
|
|
131 | # define dSTACKLEVEL int stacklevel_dummy |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
132 | # define STACKLEVEL __builtin_frame_address (0) |
123 | #else |
133 | #else |
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
|
|
135 | # define STACKLEVEL ((void *)&stacklevel) |
125 | #endif |
136 | #endif |
126 | |
137 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 | |
139 | |
129 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
… | |
… | |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
152 | |
142 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
143 | |
154 | |
144 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
|
|
156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
157 | |
146 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
147 | # if CORO_PTHREAD |
159 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
160 | static void *coro_thx; |
149 | # endif |
161 | # endif |
150 | #endif |
162 | #endif |
151 | |
163 | |
152 | /* helper storage struct for Coro::AIO */ |
|
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153 | struct io_state |
|
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154 | { |
|
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155 | AV *res; |
|
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156 | int errorno; |
|
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157 | I32 laststype; /* U16 in 5.10.0 */ |
|
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158 | int laststatval; |
|
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159 | Stat_t statcache; |
|
|
160 | }; |
|
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161 | |
|
|
162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
164 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
165 | |
|
|
166 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
167 | #define CVf_SLF 0x4000 |
|
|
168 | static OP *pp_slf (pTHX); |
163 | |
169 | |
164 | static U32 cctx_gen; |
170 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
171 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
172 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
173 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
168 | static JMPENV *main_top_env; |
174 | static JMPENV *main_top_env; |
169 | static HV *coro_state_stash, *coro_stash; |
175 | static HV *coro_state_stash, *coro_stash; |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
176 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
171 | static volatile struct coro *transfer_next; |
177 | |
|
|
178 | static AV *av_destroy; /* destruction queue */ |
|
|
179 | static SV *sv_manager; /* the manager coro */ |
|
|
180 | static SV *sv_idle; /* $Coro::idle */ |
172 | |
181 | |
173 | static GV *irsgv; /* $/ */ |
182 | static GV *irsgv; /* $/ */ |
174 | static GV *stdoutgv; /* *STDOUT */ |
183 | static GV *stdoutgv; /* *STDOUT */ |
175 | static SV *rv_diehook; |
184 | static SV *rv_diehook; |
176 | static SV *rv_warnhook; |
185 | static SV *rv_warnhook; |
177 | static HV *hv_sig; /* %SIG */ |
186 | static HV *hv_sig; /* %SIG */ |
178 | |
187 | |
179 | /* async_pool helper stuff */ |
188 | /* async_pool helper stuff */ |
180 | static SV *sv_pool_rss; |
189 | static SV *sv_pool_rss; |
181 | static SV *sv_pool_size; |
190 | static SV *sv_pool_size; |
|
|
191 | static SV *sv_async_pool_idle; /* description string */ |
182 | static AV *av_async_pool; |
192 | static AV *av_async_pool; /* idle pool */ |
|
|
193 | static SV *sv_Coro; /* class string */ |
|
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194 | static CV *cv_pool_handler; |
|
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195 | static CV *cv_coro_state_new; |
183 | |
196 | |
184 | /* Coro::AnyEvent */ |
197 | /* Coro::AnyEvent */ |
185 | static SV *sv_activity; |
198 | static SV *sv_activity; |
186 | |
199 | |
187 | static struct coro_cctx *cctx_first; |
200 | static struct coro_cctx *cctx_first; |
… | |
… | |
216 | int valgrind_id; |
229 | int valgrind_id; |
217 | #endif |
230 | #endif |
218 | unsigned char flags; |
231 | unsigned char flags; |
219 | } coro_cctx; |
232 | } coro_cctx; |
220 | |
233 | |
|
|
234 | coro_cctx *cctx_current; /* the currently running cctx */ |
|
|
235 | |
|
|
236 | /*****************************************************************************/ |
|
|
237 | |
221 | enum { |
238 | enum { |
222 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_RUNNING = 0x0001, /* coroutine is running */ |
223 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_READY = 0x0002, /* coroutine is ready */ |
224 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_NEW = 0x0004, /* has never been switched to */ |
225 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
242 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
… | |
… | |
230 | { |
247 | { |
231 | SV *defsv; |
248 | SV *defsv; |
232 | AV *defav; |
249 | AV *defav; |
233 | SV *errsv; |
250 | SV *errsv; |
234 | SV *irsgv; |
251 | SV *irsgv; |
|
|
252 | HV *hinthv; |
235 | #define VAR(name,type) type name; |
253 | #define VAR(name,type) type name; |
236 | # include "state.h" |
254 | # include "state.h" |
237 | #undef VAR |
255 | #undef VAR |
238 | } perl_slots; |
256 | } perl_slots; |
239 | |
257 | |
… | |
… | |
242 | /* this is a structure representing a perl-level coroutine */ |
260 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
261 | struct coro { |
244 | /* the C coroutine allocated to this perl coroutine, if any */ |
262 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
263 | coro_cctx *cctx; |
246 | |
264 | |
247 | /* process data */ |
265 | /* state data */ |
248 | struct CoroSLF slf_frame; /* saved slf frame */ |
266 | struct CoroSLF slf_frame; /* saved slf frame */ |
249 | AV *mainstack; |
267 | AV *mainstack; |
250 | perl_slots *slot; /* basically the saved sp */ |
268 | perl_slots *slot; /* basically the saved sp */ |
251 | |
269 | |
|
|
270 | CV *startcv; /* the CV to execute */ |
252 | AV *args; /* data associated with this coroutine (initial args) */ |
271 | AV *args; /* data associated with this coroutine (initial args) */ |
253 | int refcnt; /* coroutines are refcounted, yes */ |
272 | int refcnt; /* coroutines are refcounted, yes */ |
254 | int flags; /* CF_ flags */ |
273 | int flags; /* CF_ flags */ |
255 | HV *hv; /* the perl hash associated with this coro, if any */ |
274 | HV *hv; /* the perl hash associated with this coro, if any */ |
256 | void (*on_destroy)(pTHX_ struct coro *coro); |
275 | void (*on_destroy)(pTHX_ struct coro *coro); |
257 | |
276 | |
258 | /* statistics */ |
277 | /* statistics */ |
259 | int usecount; /* number of transfers to this coro */ |
278 | int usecount; /* number of transfers to this coro */ |
260 | |
279 | |
261 | /* coro process data */ |
280 | /* coro process data */ |
262 | int prio; |
281 | int prio; |
263 | SV *throw; /* exception to be thrown */ |
282 | SV *except; /* exception to be thrown */ |
|
|
283 | SV *rouse_cb; |
264 | |
284 | |
265 | /* async_pool */ |
285 | /* async_pool */ |
266 | SV *saved_deffh; |
286 | SV *saved_deffh; |
|
|
287 | SV *invoke_cb; |
|
|
288 | AV *invoke_av; |
267 | |
289 | |
268 | /* linked list */ |
290 | /* linked list */ |
269 | struct coro *next, *prev; |
291 | struct coro *next, *prev; |
270 | }; |
292 | }; |
271 | |
293 | |
272 | typedef struct coro *Coro__State; |
294 | typedef struct coro *Coro__State; |
273 | typedef struct coro *Coro__State_or_hashref; |
295 | typedef struct coro *Coro__State_or_hashref; |
274 | |
296 | |
|
|
297 | /* the following variables are effectively part of the perl context */ |
|
|
298 | /* and get copied between struct coro and these variables */ |
|
|
299 | /* the mainr easonw e don't support windows process emulation */ |
275 | static struct CoroSLF slf_frame; /* the current slf frame */ |
300 | static struct CoroSLF slf_frame; /* the current slf frame */ |
276 | |
301 | |
277 | /** Coro ********************************************************************/ |
302 | /** Coro ********************************************************************/ |
278 | |
303 | |
279 | #define PRIO_MAX 3 |
304 | #define PRIO_MAX 3 |
… | |
… | |
285 | |
310 | |
286 | /* for Coro.pm */ |
311 | /* for Coro.pm */ |
287 | static SV *coro_current; |
312 | static SV *coro_current; |
288 | static SV *coro_readyhook; |
313 | static SV *coro_readyhook; |
289 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
314 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
|
|
315 | static CV *cv_coro_run, *cv_coro_terminate; |
290 | static struct coro *coro_first; |
316 | static struct coro *coro_first; |
291 | #define coro_nready coroapi.nready |
317 | #define coro_nready coroapi.nready |
292 | |
318 | |
293 | /** lowlevel stuff **********************************************************/ |
319 | /** lowlevel stuff **********************************************************/ |
294 | |
320 | |
… | |
… | |
320 | get_hv (name, create); |
346 | get_hv (name, create); |
321 | #endif |
347 | #endif |
322 | return get_hv (name, create); |
348 | return get_hv (name, create); |
323 | } |
349 | } |
324 | |
350 | |
|
|
351 | /* may croak */ |
|
|
352 | INLINE CV * |
|
|
353 | coro_sv_2cv (pTHX_ SV *sv) |
|
|
354 | { |
|
|
355 | HV *st; |
|
|
356 | GV *gvp; |
|
|
357 | return sv_2cv (sv, &st, &gvp, 0); |
|
|
358 | } |
|
|
359 | |
325 | static AV * |
360 | static AV * |
326 | coro_clone_padlist (pTHX_ CV *cv) |
361 | coro_derive_padlist (pTHX_ CV *cv) |
327 | { |
362 | { |
328 | AV *padlist = CvPADLIST (cv); |
363 | AV *padlist = CvPADLIST (cv); |
329 | AV *newpadlist, *newpad; |
364 | AV *newpadlist, *newpad; |
330 | |
365 | |
331 | newpadlist = newAV (); |
366 | newpadlist = newAV (); |
… | |
… | |
381 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
416 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
382 | |
417 | |
383 | return 0; |
418 | return 0; |
384 | } |
419 | } |
385 | |
420 | |
386 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
421 | #define CORO_MAGIC_type_cv 26 |
387 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
422 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
388 | |
423 | |
389 | static MGVTBL coro_cv_vtbl = { |
424 | static MGVTBL coro_cv_vtbl = { |
390 | 0, 0, 0, 0, |
425 | 0, 0, 0, 0, |
391 | coro_cv_free |
426 | coro_cv_free |
392 | }; |
427 | }; |
393 | |
428 | |
|
|
429 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
430 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
431 | ? SvMAGIC (sv) \ |
|
|
432 | : mg_find (sv, type)) |
|
|
433 | |
394 | #define CORO_MAGIC(sv, type) \ |
434 | #define CORO_MAGIC(sv, type) \ |
395 | expect_true (SvMAGIC (sv)) \ |
435 | (expect_true (SvMAGIC (sv)) \ |
396 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
436 | ? CORO_MAGIC_NN (sv, type) \ |
397 | ? SvMAGIC (sv) \ |
|
|
398 | : mg_find (sv, type) \ |
|
|
399 | : 0 |
437 | : 0) |
400 | |
438 | |
401 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
439 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
402 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
440 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
403 | |
441 | |
404 | INLINE struct coro * |
442 | INLINE struct coro * |
405 | SvSTATE_ (pTHX_ SV *coro) |
443 | SvSTATE_ (pTHX_ SV *coro) |
406 | { |
444 | { |
407 | HV *stash; |
445 | HV *stash; |
… | |
… | |
425 | return (struct coro *)mg->mg_ptr; |
463 | return (struct coro *)mg->mg_ptr; |
426 | } |
464 | } |
427 | |
465 | |
428 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
466 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
429 | |
467 | |
430 | /* fastert than SvSTATE, but expects a coroutine hv */ |
468 | /* faster than SvSTATE, but expects a coroutine hv */ |
431 | INLINE struct coro * |
469 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
432 | SvSTATE_hv (SV *sv) |
|
|
433 | { |
|
|
434 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
435 | ? SvMAGIC (sv) |
|
|
436 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
437 | |
|
|
438 | return (struct coro *)mg->mg_ptr; |
|
|
439 | } |
|
|
440 | |
|
|
441 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
470 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
442 | |
471 | |
443 | /* the next two functions merely cache the padlists */ |
472 | /* the next two functions merely cache the padlists */ |
444 | static void |
473 | static void |
445 | get_padlist (pTHX_ CV *cv) |
474 | get_padlist (pTHX_ CV *cv) |
… | |
… | |
452 | else |
481 | else |
453 | { |
482 | { |
454 | #if CORO_PREFER_PERL_FUNCTIONS |
483 | #if CORO_PREFER_PERL_FUNCTIONS |
455 | /* this is probably cleaner? but also slower! */ |
484 | /* this is probably cleaner? but also slower! */ |
456 | /* in practise, it seems to be less stable */ |
485 | /* in practise, it seems to be less stable */ |
457 | CV *cp = Perl_cv_clone (cv); |
486 | CV *cp = Perl_cv_clone (aTHX_ cv); |
458 | CvPADLIST (cv) = CvPADLIST (cp); |
487 | CvPADLIST (cv) = CvPADLIST (cp); |
459 | CvPADLIST (cp) = 0; |
488 | CvPADLIST (cp) = 0; |
460 | SvREFCNT_dec (cp); |
489 | SvREFCNT_dec (cp); |
461 | #else |
490 | #else |
462 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
491 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
463 | #endif |
492 | #endif |
464 | } |
493 | } |
465 | } |
494 | } |
466 | |
495 | |
467 | static void |
496 | static void |
… | |
… | |
489 | perl_slots *slot = c->slot; |
518 | perl_slots *slot = c->slot; |
490 | c->slot = 0; |
519 | c->slot = 0; |
491 | |
520 | |
492 | PL_mainstack = c->mainstack; |
521 | PL_mainstack = c->mainstack; |
493 | |
522 | |
494 | GvSV (PL_defgv) = slot->defsv; |
523 | GvSV (PL_defgv) = slot->defsv; |
495 | GvAV (PL_defgv) = slot->defav; |
524 | GvAV (PL_defgv) = slot->defav; |
496 | GvSV (PL_errgv) = slot->errsv; |
525 | GvSV (PL_errgv) = slot->errsv; |
497 | GvSV (irsgv) = slot->irsgv; |
526 | GvSV (irsgv) = slot->irsgv; |
|
|
527 | GvHV (PL_hintgv) = slot->hinthv; |
498 | |
528 | |
499 | #define VAR(name,type) PL_ ## name = slot->name; |
529 | #define VAR(name,type) PL_ ## name = slot->name; |
500 | # include "state.h" |
530 | # include "state.h" |
501 | #undef VAR |
531 | #undef VAR |
502 | |
532 | |
… | |
… | |
514 | } |
544 | } |
515 | |
545 | |
516 | PUTBACK; |
546 | PUTBACK; |
517 | } |
547 | } |
518 | |
548 | |
519 | slf_frame = c->slf_frame; |
549 | slf_frame = c->slf_frame; |
|
|
550 | CORO_THROW = c->except; |
520 | } |
551 | } |
521 | |
552 | |
522 | static void |
553 | static void |
523 | save_perl (pTHX_ Coro__State c) |
554 | save_perl (pTHX_ Coro__State c) |
524 | { |
555 | { |
|
|
556 | c->except = CORO_THROW; |
525 | c->slf_frame = slf_frame; |
557 | c->slf_frame = slf_frame; |
526 | |
558 | |
527 | { |
559 | { |
528 | dSP; |
560 | dSP; |
529 | I32 cxix = cxstack_ix; |
561 | I32 cxix = cxstack_ix; |
… | |
… | |
586 | c->mainstack = PL_mainstack; |
618 | c->mainstack = PL_mainstack; |
587 | |
619 | |
588 | { |
620 | { |
589 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
621 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
590 | |
622 | |
591 | slot->defav = GvAV (PL_defgv); |
623 | slot->defav = GvAV (PL_defgv); |
592 | slot->defsv = DEFSV; |
624 | slot->defsv = DEFSV; |
593 | slot->errsv = ERRSV; |
625 | slot->errsv = ERRSV; |
594 | slot->irsgv = GvSV (irsgv); |
626 | slot->irsgv = GvSV (irsgv); |
|
|
627 | slot->hinthv = GvHV (PL_hintgv); |
595 | |
628 | |
596 | #define VAR(name,type) slot->name = PL_ ## name; |
629 | #define VAR(name,type) slot->name = PL_ ## name; |
597 | # include "state.h" |
630 | # include "state.h" |
598 | #undef VAR |
631 | #undef VAR |
599 | } |
632 | } |
… | |
… | |
604 | * of perl.c:init_stacks, except that it uses less memory |
637 | * of perl.c:init_stacks, except that it uses less memory |
605 | * on the (sometimes correct) assumption that coroutines do |
638 | * on the (sometimes correct) assumption that coroutines do |
606 | * not usually need a lot of stackspace. |
639 | * not usually need a lot of stackspace. |
607 | */ |
640 | */ |
608 | #if CORO_PREFER_PERL_FUNCTIONS |
641 | #if CORO_PREFER_PERL_FUNCTIONS |
609 | # define coro_init_stacks init_stacks |
642 | # define coro_init_stacks(thx) init_stacks () |
610 | #else |
643 | #else |
611 | static void |
644 | static void |
612 | coro_init_stacks (pTHX) |
645 | coro_init_stacks (pTHX) |
613 | { |
646 | { |
614 | PL_curstackinfo = new_stackinfo(32, 8); |
647 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
677 | #if !PERL_VERSION_ATLEAST (5,10,0) |
710 | #if !PERL_VERSION_ATLEAST (5,10,0) |
678 | Safefree (PL_retstack); |
711 | Safefree (PL_retstack); |
679 | #endif |
712 | #endif |
680 | } |
713 | } |
681 | |
714 | |
|
|
715 | #define CORO_RSS \ |
|
|
716 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
717 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
718 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
719 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
720 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
721 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
722 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
723 | |
682 | static size_t |
724 | static size_t |
683 | coro_rss (pTHX_ struct coro *coro) |
725 | coro_rss (pTHX_ struct coro *coro) |
684 | { |
726 | { |
685 | size_t rss = sizeof (*coro); |
727 | size_t rss = sizeof (*coro); |
686 | |
728 | |
687 | if (coro->mainstack) |
729 | if (coro->mainstack) |
688 | { |
730 | { |
689 | perl_slots tmp_slot; |
|
|
690 | perl_slots *slot; |
|
|
691 | |
|
|
692 | if (coro->flags & CF_RUNNING) |
731 | if (coro->flags & CF_RUNNING) |
693 | { |
732 | { |
694 | slot = &tmp_slot; |
733 | #define SYM(sym) PL_ ## sym |
695 | |
734 | CORO_RSS; |
696 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
697 | # include "state.h" |
|
|
698 | #undef VAR |
735 | #undef SYM |
699 | } |
736 | } |
700 | else |
737 | else |
701 | slot = coro->slot; |
|
|
702 | |
|
|
703 | if (slot) |
|
|
704 | { |
738 | { |
705 | rss += sizeof (slot->curstackinfo); |
739 | #define SYM(sym) coro->slot->sym |
706 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
740 | CORO_RSS; |
707 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
741 | #undef SYM |
708 | rss += slot->tmps_max * sizeof (SV *); |
|
|
709 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
710 | rss += slot->scopestack_max * sizeof (I32); |
|
|
711 | rss += slot->savestack_max * sizeof (ANY); |
|
|
712 | |
|
|
713 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
714 | rss += slot->retstack_max * sizeof (OP *); |
|
|
715 | #endif |
|
|
716 | } |
742 | } |
717 | } |
743 | } |
718 | |
744 | |
719 | return rss; |
745 | return rss; |
720 | } |
746 | } |
… | |
… | |
822 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
848 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
823 | { |
849 | { |
824 | return 0; |
850 | return 0; |
825 | } |
851 | } |
826 | |
852 | |
827 | static void |
853 | static int |
|
|
854 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
855 | { |
|
|
856 | return 1; |
|
|
857 | } |
|
|
858 | |
|
|
859 | static UNOP coro_setup_op; |
|
|
860 | |
|
|
861 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
828 | coro_setup (pTHX_ struct coro *coro) |
862 | coro_setup (pTHX_ struct coro *coro) |
829 | { |
863 | { |
830 | /* |
864 | /* |
831 | * emulate part of the perl startup here. |
865 | * emulate part of the perl startup here. |
832 | */ |
866 | */ |
… | |
… | |
834 | |
868 | |
835 | PL_runops = RUNOPS_DEFAULT; |
869 | PL_runops = RUNOPS_DEFAULT; |
836 | PL_curcop = &PL_compiling; |
870 | PL_curcop = &PL_compiling; |
837 | PL_in_eval = EVAL_NULL; |
871 | PL_in_eval = EVAL_NULL; |
838 | PL_comppad = 0; |
872 | PL_comppad = 0; |
|
|
873 | PL_comppad_name = 0; |
|
|
874 | PL_comppad_name_fill = 0; |
|
|
875 | PL_comppad_name_floor = 0; |
839 | PL_curpm = 0; |
876 | PL_curpm = 0; |
840 | PL_curpad = 0; |
877 | PL_curpad = 0; |
841 | PL_localizing = 0; |
878 | PL_localizing = 0; |
842 | PL_dirty = 0; |
879 | PL_dirty = 0; |
843 | PL_restartop = 0; |
880 | PL_restartop = 0; |
844 | #if PERL_VERSION_ATLEAST (5,10,0) |
881 | #if PERL_VERSION_ATLEAST (5,10,0) |
845 | PL_parser = 0; |
882 | PL_parser = 0; |
846 | #endif |
883 | #endif |
|
|
884 | PL_hints = 0; |
847 | |
885 | |
848 | /* recreate the die/warn hooks */ |
886 | /* recreate the die/warn hooks */ |
849 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
887 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
850 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
888 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
851 | |
889 | |
852 | GvSV (PL_defgv) = newSV (0); |
890 | GvSV (PL_defgv) = newSV (0); |
853 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
891 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
854 | GvSV (PL_errgv) = newSV (0); |
892 | GvSV (PL_errgv) = newSV (0); |
855 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
893 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
894 | GvHV (PL_hintgv) = 0; |
856 | PL_rs = newSVsv (GvSV (irsgv)); |
895 | PL_rs = newSVsv (GvSV (irsgv)); |
857 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
896 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
858 | |
897 | |
859 | { |
898 | { |
860 | dSP; |
899 | dSP; |
861 | UNOP myop; |
900 | UNOP myop; |
862 | |
901 | |
863 | Zero (&myop, 1, UNOP); |
902 | Zero (&myop, 1, UNOP); |
864 | myop.op_next = Nullop; |
903 | myop.op_next = Nullop; |
|
|
904 | myop.op_type = OP_ENTERSUB; |
865 | myop.op_flags = OPf_WANT_VOID; |
905 | myop.op_flags = OPf_WANT_VOID; |
866 | |
906 | |
867 | PUSHMARK (SP); |
907 | PUSHMARK (SP); |
868 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
908 | PUSHs ((SV *)coro->startcv); |
869 | PUTBACK; |
909 | PUTBACK; |
870 | PL_op = (OP *)&myop; |
910 | PL_op = (OP *)&myop; |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
911 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
872 | SPAGAIN; |
|
|
873 | } |
912 | } |
874 | |
913 | |
875 | /* this newly created coroutine might be run on an existing cctx which most |
914 | /* this newly created coroutine might be run on an existing cctx which most |
876 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
915 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
877 | */ |
916 | */ |
878 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
917 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
879 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
918 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
919 | |
|
|
920 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
921 | coro_setup_op.op_next = PL_op; |
|
|
922 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
923 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
924 | /* no flags etc. required, as an init function won't be called */ |
|
|
925 | |
|
|
926 | PL_op = (OP *)&coro_setup_op; |
|
|
927 | |
|
|
928 | /* copy throw, in case it was set before coro_setup */ |
|
|
929 | CORO_THROW = coro->except; |
880 | } |
930 | } |
881 | |
931 | |
882 | static void |
932 | static void |
883 | coro_destruct (pTHX_ struct coro *coro) |
933 | coro_destruct (pTHX_ struct coro *coro) |
884 | { |
934 | { |
… | |
… | |
903 | SvREFCNT_dec (GvAV (PL_defgv)); |
953 | SvREFCNT_dec (GvAV (PL_defgv)); |
904 | SvREFCNT_dec (GvSV (PL_errgv)); |
954 | SvREFCNT_dec (GvSV (PL_errgv)); |
905 | SvREFCNT_dec (PL_defoutgv); |
955 | SvREFCNT_dec (PL_defoutgv); |
906 | SvREFCNT_dec (PL_rs); |
956 | SvREFCNT_dec (PL_rs); |
907 | SvREFCNT_dec (GvSV (irsgv)); |
957 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
958 | SvREFCNT_dec (GvHV (PL_hintgv)); |
908 | |
959 | |
909 | SvREFCNT_dec (PL_diehook); |
960 | SvREFCNT_dec (PL_diehook); |
910 | SvREFCNT_dec (PL_warnhook); |
961 | SvREFCNT_dec (PL_warnhook); |
911 | |
962 | |
912 | SvREFCNT_dec (coro->saved_deffh); |
963 | SvREFCNT_dec (coro->saved_deffh); |
913 | SvREFCNT_dec (coro->throw); |
964 | SvREFCNT_dec (coro->rouse_cb); |
|
|
965 | SvREFCNT_dec (coro->invoke_cb); |
|
|
966 | SvREFCNT_dec (coro->invoke_av); |
914 | |
967 | |
915 | coro_destruct_stacks (aTHX); |
968 | coro_destruct_stacks (aTHX); |
916 | } |
969 | } |
917 | |
970 | |
918 | INLINE void |
971 | INLINE void |
… | |
… | |
928 | static int |
981 | static int |
929 | runops_trace (pTHX) |
982 | runops_trace (pTHX) |
930 | { |
983 | { |
931 | COP *oldcop = 0; |
984 | COP *oldcop = 0; |
932 | int oldcxix = -2; |
985 | int oldcxix = -2; |
933 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
|
|
934 | coro_cctx *cctx = coro->cctx; |
|
|
935 | |
986 | |
936 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
987 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
937 | { |
988 | { |
938 | PERL_ASYNC_CHECK (); |
989 | PERL_ASYNC_CHECK (); |
939 | |
990 | |
940 | if (cctx->flags & CC_TRACE_ALL) |
991 | if (cctx_current->flags & CC_TRACE_ALL) |
941 | { |
992 | { |
942 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
993 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
943 | { |
994 | { |
944 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
995 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
945 | SV **bot, **top; |
996 | SV **bot, **top; |
946 | AV *av = newAV (); /* return values */ |
997 | AV *av = newAV (); /* return values */ |
947 | SV **cb; |
998 | SV **cb; |
… | |
… | |
984 | |
1035 | |
985 | if (PL_curcop != &PL_compiling) |
1036 | if (PL_curcop != &PL_compiling) |
986 | { |
1037 | { |
987 | SV **cb; |
1038 | SV **cb; |
988 | |
1039 | |
989 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1040 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
990 | { |
1041 | { |
991 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1042 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
992 | |
1043 | |
993 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1044 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
994 | { |
1045 | { |
995 | runops_proc_t old_runops = PL_runops; |
|
|
996 | dSP; |
1046 | dSP; |
997 | GV *gv = CvGV (cx->blk_sub.cv); |
1047 | GV *gv = CvGV (cx->blk_sub.cv); |
998 | SV *fullname = sv_2mortal (newSV (0)); |
1048 | SV *fullname = sv_2mortal (newSV (0)); |
999 | |
1049 | |
1000 | if (isGV (gv)) |
1050 | if (isGV (gv)) |
… | |
… | |
1005 | SAVETMPS; |
1055 | SAVETMPS; |
1006 | EXTEND (SP, 3); |
1056 | EXTEND (SP, 3); |
1007 | PUSHMARK (SP); |
1057 | PUSHMARK (SP); |
1008 | PUSHs (&PL_sv_yes); |
1058 | PUSHs (&PL_sv_yes); |
1009 | PUSHs (fullname); |
1059 | PUSHs (fullname); |
1010 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1060 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1011 | PUTBACK; |
1061 | PUTBACK; |
1012 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1062 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1013 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1063 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1014 | SPAGAIN; |
1064 | SPAGAIN; |
1015 | FREETMPS; |
1065 | FREETMPS; |
… | |
… | |
1018 | } |
1068 | } |
1019 | |
1069 | |
1020 | oldcxix = cxstack_ix; |
1070 | oldcxix = cxstack_ix; |
1021 | } |
1071 | } |
1022 | |
1072 | |
1023 | if (cctx->flags & CC_TRACE_LINE) |
1073 | if (cctx_current->flags & CC_TRACE_LINE) |
1024 | { |
1074 | { |
1025 | dSP; |
1075 | dSP; |
1026 | |
1076 | |
1027 | PL_runops = RUNOPS_DEFAULT; |
1077 | PL_runops = RUNOPS_DEFAULT; |
1028 | ENTER; |
1078 | ENTER; |
… | |
… | |
1047 | |
1097 | |
1048 | TAINT_NOT; |
1098 | TAINT_NOT; |
1049 | return 0; |
1099 | return 0; |
1050 | } |
1100 | } |
1051 | |
1101 | |
|
|
1102 | static struct CoroSLF cctx_ssl_frame; |
|
|
1103 | |
1052 | static void |
1104 | static void |
1053 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1105 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1054 | { |
1106 | { |
1055 | ta->prev = (struct coro *)cctx; |
|
|
1056 | ta->next = 0; |
1107 | ta->prev = 0; |
1057 | } |
1108 | } |
1058 | |
1109 | |
1059 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1110 | static int |
1060 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1111 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1061 | /* during execution of a perl program */ |
1112 | { |
1062 | /* also initialises PL_top_env */ |
1113 | *frame = cctx_ssl_frame; |
|
|
1114 | |
|
|
1115 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1063 | static void NOINLINE |
1119 | static void NOINLINE |
1064 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1120 | cctx_prepare (pTHX) |
1065 | { |
1121 | { |
1066 | dSP; |
|
|
1067 | UNOP myop; |
|
|
1068 | |
|
|
1069 | PL_top_env = &PL_start_env; |
1122 | PL_top_env = &PL_start_env; |
1070 | |
1123 | |
1071 | if (cctx->flags & CC_TRACE) |
1124 | if (cctx_current->flags & CC_TRACE) |
1072 | PL_runops = runops_trace; |
1125 | PL_runops = runops_trace; |
1073 | |
1126 | |
1074 | Zero (&myop, 1, UNOP); |
1127 | /* we already must be executing an SLF op, there is no other valid way |
1075 | myop.op_next = PL_op; |
1128 | * that can lead to creation of a new cctx */ |
1076 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1129 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1130 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1077 | |
1131 | |
1078 | PUSHMARK (SP); |
1132 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1079 | EXTEND (SP, 2); |
1133 | cctx_ssl_frame = slf_frame; |
1080 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1134 | |
1081 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1135 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1082 | PUTBACK; |
1136 | slf_frame.check = slf_check_set_stacklevel; |
1083 | PL_op = (OP *)&myop; |
|
|
1084 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1085 | SPAGAIN; |
|
|
1086 | } |
1137 | } |
1087 | |
1138 | |
1088 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1139 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1089 | INLINE void |
1140 | INLINE void |
1090 | transfer_tail (pTHX) |
1141 | transfer_tail (pTHX) |
1091 | { |
1142 | { |
1092 | struct coro *next = (struct coro *)transfer_next; |
|
|
1093 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1094 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1095 | |
|
|
1096 | free_coro_mortal (aTHX); |
1143 | free_coro_mortal (aTHX); |
1097 | |
|
|
1098 | if (expect_false (next->throw)) |
|
|
1099 | { |
|
|
1100 | SV *exception = sv_2mortal (next->throw); |
|
|
1101 | |
|
|
1102 | next->throw = 0; |
|
|
1103 | sv_setsv (ERRSV, exception); |
|
|
1104 | croak (0); |
|
|
1105 | } |
|
|
1106 | } |
1144 | } |
1107 | |
1145 | |
1108 | /* |
1146 | /* |
1109 | * this is a _very_ stripped down perl interpreter ;) |
1147 | * this is a _very_ stripped down perl interpreter ;) |
1110 | */ |
1148 | */ |
… | |
… | |
1122 | /* normally we would need to skip the entersub here */ |
1160 | /* normally we would need to skip the entersub here */ |
1123 | /* not doing so will re-execute it, which is exactly what we want */ |
1161 | /* not doing so will re-execute it, which is exactly what we want */ |
1124 | /* PL_nop = PL_nop->op_next */ |
1162 | /* PL_nop = PL_nop->op_next */ |
1125 | |
1163 | |
1126 | /* inject a fake subroutine call to cctx_init */ |
1164 | /* inject a fake subroutine call to cctx_init */ |
1127 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1165 | cctx_prepare (aTHX); |
1128 | |
1166 | |
1129 | /* cctx_run is the alternative tail of transfer() */ |
1167 | /* cctx_run is the alternative tail of transfer() */ |
1130 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
|
|
1131 | transfer_tail (aTHX); |
1168 | transfer_tail (aTHX); |
1132 | |
1169 | |
1133 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1170 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1134 | PL_restartop = PL_op; |
1171 | PL_restartop = PL_op; |
1135 | perl_run (PL_curinterp); |
1172 | perl_run (PL_curinterp); |
|
|
1173 | /* |
|
|
1174 | * Unfortunately, there is no way to get at the return values of the |
|
|
1175 | * coro body here, as perl_run destroys these |
|
|
1176 | */ |
1136 | |
1177 | |
1137 | /* |
1178 | /* |
1138 | * If perl-run returns we assume exit() was being called or the coro |
1179 | * If perl-run returns we assume exit() was being called or the coro |
1139 | * fell off the end, which seems to be the only valid (non-bug) |
1180 | * fell off the end, which seems to be the only valid (non-bug) |
1140 | * reason for perl_run to return. We try to exit by jumping to the |
1181 | * reason for perl_run to return. We try to exit by jumping to the |
1141 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1182 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1142 | * coroutine as Coro has no such concept |
1183 | * coroutine as Coro has no such concept. |
|
|
1184 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1185 | * that backend are too broken to do it in a standards-compliant way. |
1143 | */ |
1186 | */ |
1144 | PL_top_env = main_top_env; |
1187 | PL_top_env = main_top_env; |
1145 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1188 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1146 | } |
1189 | } |
1147 | } |
1190 | } |
… | |
… | |
1224 | cctx_destroy (coro_cctx *cctx) |
1267 | cctx_destroy (coro_cctx *cctx) |
1225 | { |
1268 | { |
1226 | if (!cctx) |
1269 | if (!cctx) |
1227 | return; |
1270 | return; |
1228 | |
1271 | |
|
|
1272 | assert (cctx != cctx_current);//D temporary |
|
|
1273 | |
1229 | --cctx_count; |
1274 | --cctx_count; |
1230 | coro_destroy (&cctx->cctx); |
1275 | coro_destroy (&cctx->cctx); |
1231 | |
1276 | |
1232 | /* coro_transfer creates new, empty cctx's */ |
1277 | /* coro_transfer creates new, empty cctx's */ |
1233 | if (cctx->sptr) |
1278 | if (cctx->sptr) |
… | |
… | |
1291 | /** coroutine switching *****************************************************/ |
1336 | /** coroutine switching *****************************************************/ |
1292 | |
1337 | |
1293 | static void |
1338 | static void |
1294 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1339 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1295 | { |
1340 | { |
|
|
1341 | /* TODO: throwing up here is considered harmful */ |
|
|
1342 | |
1296 | if (expect_true (prev != next)) |
1343 | if (expect_true (prev != next)) |
1297 | { |
1344 | { |
1298 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1345 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1299 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1346 | croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); |
1300 | |
1347 | |
1301 | if (expect_false (next->flags & CF_RUNNING)) |
1348 | if (expect_false (next->flags & CF_RUNNING)) |
1302 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1349 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1303 | |
1350 | |
1304 | if (expect_false (next->flags & CF_DESTROYED)) |
1351 | if (expect_false (next->flags & CF_DESTROYED)) |
… | |
… | |
1310 | #endif |
1357 | #endif |
1311 | } |
1358 | } |
1312 | } |
1359 | } |
1313 | |
1360 | |
1314 | /* always use the TRANSFER macro */ |
1361 | /* always use the TRANSFER macro */ |
1315 | static void NOINLINE |
1362 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1316 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1363 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1317 | { |
1364 | { |
1318 | dSTACKLEVEL; |
1365 | dSTACKLEVEL; |
1319 | |
1366 | |
1320 | /* sometimes transfer is only called to set idle_sp */ |
1367 | /* sometimes transfer is only called to set idle_sp */ |
1321 | if (expect_false (!next)) |
1368 | if (expect_false (!prev)) |
1322 | { |
1369 | { |
1323 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1370 | cctx_current->idle_sp = STACKLEVEL; |
1324 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1371 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1325 | } |
1372 | } |
1326 | else if (expect_true (prev != next)) |
1373 | else if (expect_true (prev != next)) |
1327 | { |
1374 | { |
1328 | coro_cctx *prev__cctx; |
1375 | coro_cctx *cctx_prev; |
1329 | |
1376 | |
1330 | if (expect_false (prev->flags & CF_NEW)) |
1377 | if (expect_false (prev->flags & CF_NEW)) |
1331 | { |
1378 | { |
1332 | /* create a new empty/source context */ |
1379 | /* create a new empty/source context */ |
1333 | prev->cctx = cctx_new_empty (); |
|
|
1334 | prev->flags &= ~CF_NEW; |
1380 | prev->flags &= ~CF_NEW; |
1335 | prev->flags |= CF_RUNNING; |
1381 | prev->flags |= CF_RUNNING; |
1336 | } |
1382 | } |
1337 | |
1383 | |
1338 | prev->flags &= ~CF_RUNNING; |
1384 | prev->flags &= ~CF_RUNNING; |
… | |
… | |
1349 | coro_setup (aTHX_ next); |
1395 | coro_setup (aTHX_ next); |
1350 | } |
1396 | } |
1351 | else |
1397 | else |
1352 | load_perl (aTHX_ next); |
1398 | load_perl (aTHX_ next); |
1353 | |
1399 | |
1354 | prev__cctx = prev->cctx; |
1400 | assert (!prev->cctx);//D temporary |
1355 | |
1401 | |
1356 | /* possibly untie and reuse the cctx */ |
1402 | /* possibly untie and reuse the cctx */ |
1357 | if (expect_true ( |
1403 | if (expect_true ( |
1358 | prev__cctx->idle_sp == (void *)stacklevel |
1404 | cctx_current->idle_sp == STACKLEVEL |
1359 | && !(prev__cctx->flags & CC_TRACE) |
1405 | && !(cctx_current->flags & CC_TRACE) |
1360 | && !force_cctx |
1406 | && !force_cctx |
1361 | )) |
1407 | )) |
1362 | { |
1408 | { |
1363 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1409 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1364 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1410 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1365 | |
1411 | |
1366 | prev->cctx = 0; |
|
|
1367 | |
|
|
1368 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1412 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1369 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1413 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1370 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1414 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1371 | if (!next->cctx) |
1415 | if (expect_true (!next->cctx)) |
1372 | next->cctx = cctx_get (aTHX); |
1416 | next->cctx = cctx_get (aTHX); |
1373 | |
1417 | |
1374 | cctx_put (prev__cctx); |
1418 | cctx_put (cctx_current); |
1375 | } |
1419 | } |
|
|
1420 | else |
|
|
1421 | prev->cctx = cctx_current; |
1376 | |
1422 | |
1377 | ++next->usecount; |
1423 | ++next->usecount; |
1378 | |
1424 | |
1379 | if (expect_true (!next->cctx)) |
1425 | cctx_prev = cctx_current; |
1380 | next->cctx = cctx_get (aTHX); |
1426 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1381 | |
1427 | |
1382 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
1428 | next->cctx = 0; |
1383 | transfer_next = next; |
|
|
1384 | |
1429 | |
1385 | if (expect_false (prev__cctx != next->cctx)) |
1430 | if (expect_false (cctx_prev != cctx_current)) |
1386 | { |
1431 | { |
1387 | prev__cctx->top_env = PL_top_env; |
1432 | cctx_prev->top_env = PL_top_env; |
1388 | PL_top_env = next->cctx->top_env; |
1433 | PL_top_env = cctx_current->top_env; |
1389 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1434 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1390 | } |
1435 | } |
1391 | |
1436 | |
1392 | transfer_tail (aTHX); |
1437 | transfer_tail (aTHX); |
1393 | } |
1438 | } |
1394 | } |
1439 | } |
… | |
… | |
1433 | |
1478 | |
1434 | coro->slot = 0; |
1479 | coro->slot = 0; |
1435 | } |
1480 | } |
1436 | |
1481 | |
1437 | cctx_destroy (coro->cctx); |
1482 | cctx_destroy (coro->cctx); |
|
|
1483 | SvREFCNT_dec (coro->startcv); |
1438 | SvREFCNT_dec (coro->args); |
1484 | SvREFCNT_dec (coro->args); |
|
|
1485 | SvREFCNT_dec (CORO_THROW); |
1439 | |
1486 | |
1440 | if (coro->next) coro->next->prev = coro->prev; |
1487 | if (coro->next) coro->next->prev = coro->prev; |
1441 | if (coro->prev) coro->prev->next = coro->next; |
1488 | if (coro->prev) coro->prev->next = coro->next; |
1442 | if (coro == coro_first) coro_first = coro->next; |
1489 | if (coro == coro_first) coro_first = coro->next; |
1443 | |
1490 | |
… | |
… | |
1497 | |
1544 | |
1498 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1545 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1499 | TRANSFER (ta, 1); |
1546 | TRANSFER (ta, 1); |
1500 | } |
1547 | } |
1501 | |
1548 | |
|
|
1549 | /*****************************************************************************/ |
|
|
1550 | /* gensub: simple closure generation utility */ |
|
|
1551 | |
|
|
1552 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1553 | |
|
|
1554 | /* create a closure from XS, returns a code reference */ |
|
|
1555 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1556 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1557 | static SV * |
|
|
1558 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1559 | { |
|
|
1560 | CV *cv = (CV *)newSV (0); |
|
|
1561 | |
|
|
1562 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1563 | |
|
|
1564 | CvANON_on (cv); |
|
|
1565 | CvISXSUB_on (cv); |
|
|
1566 | CvXSUB (cv) = xsub; |
|
|
1567 | GENSUB_ARG = arg; |
|
|
1568 | |
|
|
1569 | return newRV_noinc ((SV *)cv); |
|
|
1570 | } |
|
|
1571 | |
1502 | /** Coro ********************************************************************/ |
1572 | /** Coro ********************************************************************/ |
1503 | |
1573 | |
1504 | INLINE void |
1574 | INLINE void |
1505 | coro_enq (pTHX_ struct coro *coro) |
1575 | coro_enq (pTHX_ struct coro *coro) |
1506 | { |
1576 | { |
… | |
… | |
1524 | { |
1594 | { |
1525 | struct coro *coro; |
1595 | struct coro *coro; |
1526 | SV *sv_hook; |
1596 | SV *sv_hook; |
1527 | void (*xs_hook)(void); |
1597 | void (*xs_hook)(void); |
1528 | |
1598 | |
1529 | if (SvROK (coro_sv)) |
|
|
1530 | coro_sv = SvRV (coro_sv); |
|
|
1531 | |
|
|
1532 | coro = SvSTATE (coro_sv); |
1599 | coro = SvSTATE (coro_sv); |
1533 | |
1600 | |
1534 | if (coro->flags & CF_READY) |
1601 | if (coro->flags & CF_READY) |
1535 | return 0; |
1602 | return 0; |
1536 | |
1603 | |
… | |
… | |
1549 | ENTER; |
1616 | ENTER; |
1550 | SAVETMPS; |
1617 | SAVETMPS; |
1551 | |
1618 | |
1552 | PUSHMARK (SP); |
1619 | PUSHMARK (SP); |
1553 | PUTBACK; |
1620 | PUTBACK; |
1554 | call_sv (sv_hook, G_DISCARD); |
1621 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1555 | SPAGAIN; |
|
|
1556 | |
1622 | |
1557 | FREETMPS; |
1623 | FREETMPS; |
1558 | LEAVE; |
1624 | LEAVE; |
1559 | } |
1625 | } |
1560 | |
1626 | |
… | |
… | |
1568 | api_is_ready (pTHX_ SV *coro_sv) |
1634 | api_is_ready (pTHX_ SV *coro_sv) |
1569 | { |
1635 | { |
1570 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1636 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1571 | } |
1637 | } |
1572 | |
1638 | |
|
|
1639 | /* expects to own a reference to next->hv */ |
1573 | INLINE void |
1640 | INLINE void |
1574 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1641 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1575 | { |
1642 | { |
1576 | SV *prev_sv, *next_sv; |
|
|
1577 | |
|
|
1578 | for (;;) |
|
|
1579 | { |
|
|
1580 | next_sv = coro_deq (aTHX); |
|
|
1581 | |
|
|
1582 | /* nothing to schedule: call the idle handler */ |
|
|
1583 | if (expect_false (!next_sv)) |
|
|
1584 | { |
|
|
1585 | dSP; |
|
|
1586 | |
|
|
1587 | ENTER; |
|
|
1588 | SAVETMPS; |
|
|
1589 | |
|
|
1590 | PUSHMARK (SP); |
|
|
1591 | PUTBACK; |
|
|
1592 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1593 | SPAGAIN; |
|
|
1594 | |
|
|
1595 | FREETMPS; |
|
|
1596 | LEAVE; |
|
|
1597 | continue; |
|
|
1598 | } |
|
|
1599 | |
|
|
1600 | ta->next = SvSTATE_hv (next_sv); |
|
|
1601 | |
|
|
1602 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1603 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1604 | { |
|
|
1605 | SvREFCNT_dec (next_sv); |
|
|
1606 | /* coro_nready has already been taken care of by destroy */ |
|
|
1607 | continue; |
|
|
1608 | } |
|
|
1609 | |
|
|
1610 | --coro_nready; |
|
|
1611 | break; |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | /* free this only after the transfer */ |
|
|
1615 | prev_sv = SvRV (coro_current); |
1643 | SV *prev_sv = SvRV (coro_current); |
|
|
1644 | |
1616 | ta->prev = SvSTATE_hv (prev_sv); |
1645 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1646 | ta->next = next; |
|
|
1647 | |
1617 | TRANSFER_CHECK (*ta); |
1648 | TRANSFER_CHECK (*ta); |
1618 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1649 | |
1619 | ta->next->flags &= ~CF_READY; |
|
|
1620 | SvRV_set (coro_current, next_sv); |
1650 | SvRV_set (coro_current, (SV *)next->hv); |
1621 | |
1651 | |
1622 | free_coro_mortal (aTHX); |
1652 | free_coro_mortal (aTHX); |
1623 | coro_mortal = prev_sv; |
1653 | coro_mortal = prev_sv; |
1624 | } |
1654 | } |
1625 | |
1655 | |
|
|
1656 | static void |
|
|
1657 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1658 | { |
|
|
1659 | for (;;) |
|
|
1660 | { |
|
|
1661 | SV *next_sv = coro_deq (aTHX); |
|
|
1662 | |
|
|
1663 | if (expect_true (next_sv)) |
|
|
1664 | { |
|
|
1665 | struct coro *next = SvSTATE_hv (next_sv); |
|
|
1666 | |
|
|
1667 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1668 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1669 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
|
|
1670 | else |
|
|
1671 | { |
|
|
1672 | next->flags &= ~CF_READY; |
|
|
1673 | --coro_nready; |
|
|
1674 | |
|
|
1675 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1676 | break; |
|
|
1677 | } |
|
|
1678 | } |
|
|
1679 | else |
|
|
1680 | { |
|
|
1681 | /* nothing to schedule: call the idle handler */ |
|
|
1682 | if (SvROK (sv_idle) |
|
|
1683 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1684 | { |
|
|
1685 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1686 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1687 | --coro_nready; |
|
|
1688 | } |
|
|
1689 | else |
|
|
1690 | { |
|
|
1691 | dSP; |
|
|
1692 | |
|
|
1693 | ENTER; |
|
|
1694 | SAVETMPS; |
|
|
1695 | |
|
|
1696 | PUSHMARK (SP); |
|
|
1697 | PUTBACK; |
|
|
1698 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1699 | |
|
|
1700 | FREETMPS; |
|
|
1701 | LEAVE; |
|
|
1702 | } |
|
|
1703 | } |
|
|
1704 | } |
|
|
1705 | } |
|
|
1706 | |
1626 | INLINE void |
1707 | INLINE void |
1627 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1708 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1628 | { |
1709 | { |
1629 | api_ready (aTHX_ coro_current); |
1710 | api_ready (aTHX_ coro_current); |
1630 | prepare_schedule (aTHX_ ta); |
1711 | prepare_schedule (aTHX_ ta); |
… | |
… | |
1649 | { |
1730 | { |
1650 | struct coro_transfer_args ta; |
1731 | struct coro_transfer_args ta; |
1651 | |
1732 | |
1652 | prepare_schedule (aTHX_ &ta); |
1733 | prepare_schedule (aTHX_ &ta); |
1653 | TRANSFER (ta, 1); |
1734 | TRANSFER (ta, 1); |
|
|
1735 | } |
|
|
1736 | |
|
|
1737 | static void |
|
|
1738 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1739 | { |
|
|
1740 | struct coro_transfer_args ta; |
|
|
1741 | struct coro *next = SvSTATE (coro_sv); |
|
|
1742 | |
|
|
1743 | SvREFCNT_inc_NN (coro_sv); |
|
|
1744 | prepare_schedule_to (aTHX_ &ta, next); |
1654 | } |
1745 | } |
1655 | |
1746 | |
1656 | static int |
1747 | static int |
1657 | api_cede (pTHX) |
1748 | api_cede (pTHX) |
1658 | { |
1749 | { |
… | |
… | |
1687 | static void |
1778 | static void |
1688 | api_trace (pTHX_ SV *coro_sv, int flags) |
1779 | api_trace (pTHX_ SV *coro_sv, int flags) |
1689 | { |
1780 | { |
1690 | struct coro *coro = SvSTATE (coro_sv); |
1781 | struct coro *coro = SvSTATE (coro_sv); |
1691 | |
1782 | |
|
|
1783 | if (coro->flags & CF_RUNNING) |
|
|
1784 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1785 | |
1692 | if (flags & CC_TRACE) |
1786 | if (flags & CC_TRACE) |
1693 | { |
1787 | { |
1694 | if (!coro->cctx) |
1788 | if (!coro->cctx) |
1695 | coro->cctx = cctx_new_run (); |
1789 | coro->cctx = cctx_new_run (); |
1696 | else if (!(coro->cctx->flags & CC_TRACE)) |
1790 | else if (!(coro->cctx->flags & CC_TRACE)) |
1697 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1791 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1698 | |
1792 | |
1699 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1793 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1700 | } |
1794 | } |
1701 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1795 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1702 | { |
1796 | { |
… | |
… | |
1705 | if (coro->flags & CF_RUNNING) |
1799 | if (coro->flags & CF_RUNNING) |
1706 | PL_runops = RUNOPS_DEFAULT; |
1800 | PL_runops = RUNOPS_DEFAULT; |
1707 | else |
1801 | else |
1708 | coro->slot->runops = RUNOPS_DEFAULT; |
1802 | coro->slot->runops = RUNOPS_DEFAULT; |
1709 | } |
1803 | } |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | static void |
|
|
1807 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1808 | { |
|
|
1809 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1810 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1811 | |
|
|
1812 | if (on_destroyp) |
|
|
1813 | { |
|
|
1814 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1815 | |
|
|
1816 | while (AvFILLp (on_destroy) >= 0) |
|
|
1817 | { |
|
|
1818 | dSP; /* don't disturb outer sp */ |
|
|
1819 | SV *cb = av_pop (on_destroy); |
|
|
1820 | |
|
|
1821 | PUSHMARK (SP); |
|
|
1822 | |
|
|
1823 | if (statusp) |
|
|
1824 | { |
|
|
1825 | int i; |
|
|
1826 | AV *status = (AV *)SvRV (*statusp); |
|
|
1827 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1828 | |
|
|
1829 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1830 | PUSHs (AvARRAY (status)[i]); |
|
|
1831 | } |
|
|
1832 | |
|
|
1833 | PUTBACK; |
|
|
1834 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1835 | } |
|
|
1836 | } |
|
|
1837 | } |
|
|
1838 | |
|
|
1839 | static void |
|
|
1840 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1841 | { |
|
|
1842 | int i; |
|
|
1843 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1844 | AV *av = newAV (); |
|
|
1845 | |
|
|
1846 | av_extend (av, items - 1); |
|
|
1847 | for (i = 0; i < items; ++i) |
|
|
1848 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1849 | |
|
|
1850 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1851 | |
|
|
1852 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1853 | api_ready (aTHX_ sv_manager); |
|
|
1854 | |
|
|
1855 | frame->prepare = prepare_schedule; |
|
|
1856 | frame->check = slf_check_repeat; |
|
|
1857 | } |
|
|
1858 | |
|
|
1859 | /*****************************************************************************/ |
|
|
1860 | /* async pool handler */ |
|
|
1861 | |
|
|
1862 | static int |
|
|
1863 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
1864 | { |
|
|
1865 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1866 | struct coro *coro = (struct coro *)frame->data; |
|
|
1867 | |
|
|
1868 | if (!coro->invoke_cb) |
|
|
1869 | return 1; /* loop till we have invoke */ |
|
|
1870 | else |
|
|
1871 | { |
|
|
1872 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1873 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1874 | |
|
|
1875 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1876 | |
|
|
1877 | { |
|
|
1878 | dSP; |
|
|
1879 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1880 | PUTBACK; |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1884 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1885 | coro->invoke_av = 0; |
|
|
1886 | |
|
|
1887 | return 0; |
|
|
1888 | } |
|
|
1889 | } |
|
|
1890 | |
|
|
1891 | static void |
|
|
1892 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1893 | { |
|
|
1894 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1895 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1896 | |
|
|
1897 | if (expect_true (coro->saved_deffh)) |
|
|
1898 | { |
|
|
1899 | /* subsequent iteration */ |
|
|
1900 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1901 | coro->saved_deffh = 0; |
|
|
1902 | |
|
|
1903 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1904 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1905 | { |
|
|
1906 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1907 | coro->invoke_av = newAV (); |
|
|
1908 | |
|
|
1909 | frame->prepare = prepare_nop; |
|
|
1910 | } |
|
|
1911 | else |
|
|
1912 | { |
|
|
1913 | av_clear (GvAV (PL_defgv)); |
|
|
1914 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1915 | |
|
|
1916 | coro->prio = 0; |
|
|
1917 | |
|
|
1918 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1919 | api_trace (aTHX_ coro_current, 0); |
|
|
1920 | |
|
|
1921 | frame->prepare = prepare_schedule; |
|
|
1922 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1923 | } |
|
|
1924 | } |
|
|
1925 | else |
|
|
1926 | { |
|
|
1927 | /* first iteration, simply fall through */ |
|
|
1928 | frame->prepare = prepare_nop; |
|
|
1929 | } |
|
|
1930 | |
|
|
1931 | frame->check = slf_check_pool_handler; |
|
|
1932 | frame->data = (void *)coro; |
|
|
1933 | } |
|
|
1934 | |
|
|
1935 | /*****************************************************************************/ |
|
|
1936 | /* rouse callback */ |
|
|
1937 | |
|
|
1938 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1939 | |
|
|
1940 | static void |
|
|
1941 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1942 | { |
|
|
1943 | dXSARGS; |
|
|
1944 | SV *data = (SV *)GENSUB_ARG; |
|
|
1945 | |
|
|
1946 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1947 | { |
|
|
1948 | /* first call, set args */ |
|
|
1949 | AV *av = newAV (); |
|
|
1950 | SV *coro = SvRV (data); |
|
|
1951 | |
|
|
1952 | SvRV_set (data, (SV *)av); |
|
|
1953 | api_ready (aTHX_ coro); |
|
|
1954 | SvREFCNT_dec (coro); |
|
|
1955 | |
|
|
1956 | /* better take a full copy of the arguments */ |
|
|
1957 | while (items--) |
|
|
1958 | av_store (av, items, newSVsv (ST (items))); |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | XSRETURN_EMPTY; |
|
|
1962 | } |
|
|
1963 | |
|
|
1964 | static int |
|
|
1965 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1966 | { |
|
|
1967 | SV *data = (SV *)frame->data; |
|
|
1968 | |
|
|
1969 | if (CORO_THROW) |
|
|
1970 | return 0; |
|
|
1971 | |
|
|
1972 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1973 | return 1; |
|
|
1974 | |
|
|
1975 | /* now push all results on the stack */ |
|
|
1976 | { |
|
|
1977 | dSP; |
|
|
1978 | AV *av = (AV *)SvRV (data); |
|
|
1979 | int i; |
|
|
1980 | |
|
|
1981 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1982 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1983 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1984 | |
|
|
1985 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1986 | AvFILLp (av) = -1; |
|
|
1987 | av_undef (av); |
|
|
1988 | |
|
|
1989 | PUTBACK; |
|
|
1990 | } |
|
|
1991 | |
|
|
1992 | return 0; |
|
|
1993 | } |
|
|
1994 | |
|
|
1995 | static void |
|
|
1996 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1997 | { |
|
|
1998 | SV *cb; |
|
|
1999 | |
|
|
2000 | if (items) |
|
|
2001 | cb = arg [0]; |
|
|
2002 | else |
|
|
2003 | { |
|
|
2004 | struct coro *coro = SvSTATE_current; |
|
|
2005 | |
|
|
2006 | if (!coro->rouse_cb) |
|
|
2007 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2008 | |
|
|
2009 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2010 | coro->rouse_cb = 0; |
|
|
2011 | } |
|
|
2012 | |
|
|
2013 | if (!SvROK (cb) |
|
|
2014 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2015 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2016 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2017 | |
|
|
2018 | { |
|
|
2019 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2020 | SV *data = (SV *)GENSUB_ARG; |
|
|
2021 | |
|
|
2022 | frame->data = (void *)data; |
|
|
2023 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2024 | frame->check = slf_check_rouse_wait; |
|
|
2025 | } |
|
|
2026 | } |
|
|
2027 | |
|
|
2028 | static SV * |
|
|
2029 | coro_new_rouse_cb (pTHX) |
|
|
2030 | { |
|
|
2031 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2032 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2033 | SV *data = newRV_inc ((SV *)hv); |
|
|
2034 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2035 | |
|
|
2036 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2037 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2038 | |
|
|
2039 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2040 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2041 | |
|
|
2042 | return cb; |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | /*****************************************************************************/ |
|
|
2046 | /* schedule-like-function opcode (SLF) */ |
|
|
2047 | |
|
|
2048 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2049 | static const CV *slf_cv; |
|
|
2050 | static SV **slf_argv; |
|
|
2051 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2052 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2053 | |
|
|
2054 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2055 | /* recreate the stack frame as perl will on following calls */ |
|
|
2056 | /* since entersub cleared the stack */ |
|
|
2057 | static OP * |
|
|
2058 | pp_restore (pTHX) |
|
|
2059 | { |
|
|
2060 | int i; |
|
|
2061 | SV **SP = PL_stack_base + slf_ax; |
|
|
2062 | |
|
|
2063 | PUSHMARK (SP); |
|
|
2064 | |
|
|
2065 | EXTEND (SP, slf_argc + 1); |
|
|
2066 | |
|
|
2067 | for (i = 0; i < slf_argc; ++i) |
|
|
2068 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2069 | |
|
|
2070 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2071 | |
|
|
2072 | RETURNOP (slf_restore.op_first); |
|
|
2073 | } |
|
|
2074 | |
|
|
2075 | static void |
|
|
2076 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2077 | { |
|
|
2078 | SV **arg = (SV **)slf_frame.data; |
|
|
2079 | |
|
|
2080 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2081 | } |
|
|
2082 | |
|
|
2083 | static void |
|
|
2084 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2085 | { |
|
|
2086 | if (items != 2) |
|
|
2087 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2088 | |
|
|
2089 | frame->prepare = slf_prepare_transfer; |
|
|
2090 | frame->check = slf_check_nop; |
|
|
2091 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | static void |
|
|
2095 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2096 | { |
|
|
2097 | frame->prepare = prepare_schedule; |
|
|
2098 | frame->check = slf_check_nop; |
|
|
2099 | } |
|
|
2100 | |
|
|
2101 | static void |
|
|
2102 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2103 | { |
|
|
2104 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2105 | |
|
|
2106 | SvREFCNT_inc_NN (next->hv); |
|
|
2107 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2108 | } |
|
|
2109 | |
|
|
2110 | static void |
|
|
2111 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2112 | { |
|
|
2113 | if (!items) |
|
|
2114 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2115 | |
|
|
2116 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2117 | frame->prepare = slf_prepare_schedule_to; |
|
|
2118 | frame->check = slf_check_nop; |
|
|
2119 | } |
|
|
2120 | |
|
|
2121 | static void |
|
|
2122 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2123 | { |
|
|
2124 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2125 | |
|
|
2126 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2127 | } |
|
|
2128 | |
|
|
2129 | static void |
|
|
2130 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2131 | { |
|
|
2132 | frame->prepare = prepare_cede; |
|
|
2133 | frame->check = slf_check_nop; |
|
|
2134 | } |
|
|
2135 | |
|
|
2136 | static void |
|
|
2137 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2138 | { |
|
|
2139 | frame->prepare = prepare_cede_notself; |
|
|
2140 | frame->check = slf_check_nop; |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | /* |
|
|
2144 | * these not obviously related functions are all rolled into one |
|
|
2145 | * function to increase chances that they all will call transfer with the same |
|
|
2146 | * stack offset |
|
|
2147 | * SLF stands for "schedule-like-function". |
|
|
2148 | */ |
|
|
2149 | static OP * |
|
|
2150 | pp_slf (pTHX) |
|
|
2151 | { |
|
|
2152 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2153 | |
|
|
2154 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2155 | /* the latter happens when a new coro has been started */ |
|
|
2156 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2157 | if (expect_true (!slf_frame.prepare)) |
|
|
2158 | { |
|
|
2159 | /* first iteration */ |
|
|
2160 | dSP; |
|
|
2161 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2162 | int items = SP - arg; /* args without function object */ |
|
|
2163 | SV *gv = *sp; |
|
|
2164 | |
|
|
2165 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2166 | /* for us, divert to the real entersub */ |
|
|
2167 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2168 | || !GvCV (gv) |
|
|
2169 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2170 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2171 | |
|
|
2172 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2173 | { |
|
|
2174 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2175 | AV *av = GvAV (PL_defgv); |
|
|
2176 | arg = AvARRAY (av); |
|
|
2177 | items = AvFILLp (av) + 1; |
|
|
2178 | } |
|
|
2179 | |
|
|
2180 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2181 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2182 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2183 | |
|
|
2184 | /* pop args */ |
|
|
2185 | SP = PL_stack_base + POPMARK; |
|
|
2186 | |
|
|
2187 | PUTBACK; |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | /* now that we have a slf_frame, interpret it! */ |
|
|
2191 | /* we use a callback system not to make the code needlessly */ |
|
|
2192 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2193 | |
|
|
2194 | do |
|
|
2195 | { |
|
|
2196 | struct coro_transfer_args ta; |
|
|
2197 | |
|
|
2198 | slf_frame.prepare (aTHX_ &ta); |
|
|
2199 | TRANSFER (ta, 0); |
|
|
2200 | |
|
|
2201 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2202 | } |
|
|
2203 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2204 | |
|
|
2205 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2206 | |
|
|
2207 | /* exception handling */ |
|
|
2208 | if (expect_false (CORO_THROW)) |
|
|
2209 | { |
|
|
2210 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2211 | |
|
|
2212 | CORO_THROW = 0; |
|
|
2213 | sv_setsv (ERRSV, exception); |
|
|
2214 | croak (0); |
|
|
2215 | } |
|
|
2216 | |
|
|
2217 | /* return value handling - mostly like entersub */ |
|
|
2218 | /* make sure we put something on the stack in scalar context */ |
|
|
2219 | if (GIMME_V == G_SCALAR) |
|
|
2220 | { |
|
|
2221 | dSP; |
|
|
2222 | SV **bot = PL_stack_base + checkmark; |
|
|
2223 | |
|
|
2224 | if (sp == bot) /* too few, push undef */ |
|
|
2225 | bot [1] = &PL_sv_undef; |
|
|
2226 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2227 | bot [1] = *sp; |
|
|
2228 | |
|
|
2229 | SP = bot + 1; |
|
|
2230 | |
|
|
2231 | PUTBACK; |
|
|
2232 | } |
|
|
2233 | |
|
|
2234 | return NORMAL; |
|
|
2235 | } |
|
|
2236 | |
|
|
2237 | static void |
|
|
2238 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2239 | { |
|
|
2240 | int i; |
|
|
2241 | SV **arg = PL_stack_base + ax; |
|
|
2242 | int items = PL_stack_sp - arg + 1; |
|
|
2243 | |
|
|
2244 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2245 | |
|
|
2246 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2247 | && PL_op->op_ppaddr != pp_slf) |
|
|
2248 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2249 | |
|
|
2250 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2251 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2252 | slf_cv = cv; |
|
|
2253 | |
|
|
2254 | /* we patch the op, and then re-run the whole call */ |
|
|
2255 | /* we have to put the same argument on the stack for this to work */ |
|
|
2256 | /* and this will be done by pp_restore */ |
|
|
2257 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2258 | slf_restore.op_type = OP_CUSTOM; |
|
|
2259 | slf_restore.op_ppaddr = pp_restore; |
|
|
2260 | slf_restore.op_first = PL_op; |
|
|
2261 | |
|
|
2262 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2263 | |
|
|
2264 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2265 | { |
|
|
2266 | if (items > slf_arga) |
|
|
2267 | { |
|
|
2268 | slf_arga = items; |
|
|
2269 | free (slf_argv); |
|
|
2270 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2271 | } |
|
|
2272 | |
|
|
2273 | slf_argc = items; |
|
|
2274 | |
|
|
2275 | for (i = 0; i < items; ++i) |
|
|
2276 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2277 | } |
|
|
2278 | else |
|
|
2279 | slf_argc = 0; |
|
|
2280 | |
|
|
2281 | PL_op->op_ppaddr = pp_slf; |
|
|
2282 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2283 | |
|
|
2284 | PL_op = (OP *)&slf_restore; |
1710 | } |
2285 | } |
1711 | |
2286 | |
1712 | /*****************************************************************************/ |
2287 | /*****************************************************************************/ |
1713 | /* PerlIO::cede */ |
2288 | /* PerlIO::cede */ |
1714 | |
2289 | |
… | |
… | |
1783 | PerlIOBuf_get_cnt, |
2358 | PerlIOBuf_get_cnt, |
1784 | PerlIOBuf_set_ptrcnt, |
2359 | PerlIOBuf_set_ptrcnt, |
1785 | }; |
2360 | }; |
1786 | |
2361 | |
1787 | /*****************************************************************************/ |
2362 | /*****************************************************************************/ |
|
|
2363 | /* Coro::Semaphore & Coro::Signal */ |
1788 | |
2364 | |
1789 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1790 | |
|
|
1791 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1792 | static SV *slf_arg0; |
|
|
1793 | static SV *slf_arg1; |
|
|
1794 | static SV *slf_arg2; |
|
|
1795 | |
|
|
1796 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1797 | /* recreate the stack frame as perl will on following calls */ |
|
|
1798 | /* since entersub cleared the stack */ |
|
|
1799 | static OP * |
2365 | static SV * |
1800 | pp_restore (pTHX) |
2366 | coro_waitarray_new (pTHX_ int count) |
1801 | { |
2367 | { |
1802 | dSP; |
2368 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2369 | AV *av = newAV (); |
|
|
2370 | SV **ary; |
1803 | |
2371 | |
1804 | PUSHMARK (SP); |
2372 | /* unfortunately, building manually saves memory */ |
|
|
2373 | Newx (ary, 2, SV *); |
|
|
2374 | AvALLOC (av) = ary; |
|
|
2375 | /*AvARRAY (av) = ary;*/ |
|
|
2376 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2377 | AvMAX (av) = 1; |
|
|
2378 | AvFILLp (av) = 0; |
|
|
2379 | ary [0] = newSViv (count); |
1805 | |
2380 | |
1806 | EXTEND (SP, 3); |
2381 | return newRV_noinc ((SV *)av); |
1807 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1808 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1809 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1810 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1811 | |
|
|
1812 | RETURNOP (slf_restore.op_first); |
|
|
1813 | } |
2382 | } |
1814 | |
2383 | |
1815 | static void |
2384 | /* semaphore */ |
1816 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1817 | { |
|
|
1818 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1819 | } |
|
|
1820 | |
2385 | |
1821 | static void |
2386 | static void |
1822 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1823 | { |
|
|
1824 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1825 | |
|
|
1826 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1827 | frame->check = slf_check_nop; |
|
|
1828 | frame->data = (void *)SvIV (arg [0]); |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | static void |
|
|
1832 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1833 | { |
|
|
1834 | SV **arg = (SV **)slf_frame.data; |
|
|
1835 | |
|
|
1836 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1837 | } |
|
|
1838 | |
|
|
1839 | static void |
|
|
1840 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1841 | { |
|
|
1842 | if (items != 2) |
|
|
1843 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1844 | |
|
|
1845 | frame->prepare = slf_prepare_transfer; |
|
|
1846 | frame->check = slf_check_nop; |
|
|
1847 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_schedule; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | static void |
|
|
1865 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1866 | { |
|
|
1867 | frame->prepare = prepare_cede_notself; |
|
|
1868 | frame->check = slf_check_nop; |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1872 | #define CVf_SLF 0x4000 |
|
|
1873 | |
|
|
1874 | /* |
|
|
1875 | * these not obviously related functions are all rolled into one |
|
|
1876 | * function to increase chances that they all will call transfer with the same |
|
|
1877 | * stack offset |
|
|
1878 | * SLF stands for "schedule-like-function". |
|
|
1879 | */ |
|
|
1880 | static OP * |
|
|
1881 | pp_slf (pTHX) |
|
|
1882 | { |
|
|
1883 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1884 | |
|
|
1885 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1886 | /* the latter happens when a new coro has been started */ |
|
|
1887 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1888 | if (expect_true (!slf_frame.prepare)) |
|
|
1889 | { |
|
|
1890 | /* first iteration */ |
|
|
1891 | dSP; |
|
|
1892 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1893 | int items = SP - arg; /* args without function object */ |
|
|
1894 | SV *gv = *sp; |
|
|
1895 | |
|
|
1896 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1897 | /* for us, divert to the real entersub */ |
|
|
1898 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1899 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1900 | |
|
|
1901 | /* pop args */ |
|
|
1902 | SP = PL_stack_base + POPMARK; |
|
|
1903 | |
|
|
1904 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1905 | { |
|
|
1906 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1907 | AV *av = GvAV (PL_defgv); |
|
|
1908 | arg = AvARRAY (av); |
|
|
1909 | items = AvFILLp (av) + 1; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | PUTBACK; |
|
|
1913 | |
|
|
1914 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1915 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1916 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | /* now that we have a slf_frame, interpret it! */ |
|
|
1920 | /* we use a callback system not to make the code needlessly */ |
|
|
1921 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1922 | |
|
|
1923 | do |
|
|
1924 | { |
|
|
1925 | struct coro_transfer_args ta; |
|
|
1926 | |
|
|
1927 | slf_frame.prepare (aTHX_ &ta); |
|
|
1928 | TRANSFER (ta, 0); |
|
|
1929 | |
|
|
1930 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1931 | } |
|
|
1932 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1933 | |
|
|
1934 | { |
|
|
1935 | dSP; |
|
|
1936 | SV **bot = PL_stack_base + checkmark; |
|
|
1937 | int gimme = GIMME_V; |
|
|
1938 | |
|
|
1939 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1940 | |
|
|
1941 | /* make sure we put something on the stack in scalar context */ |
|
|
1942 | if (gimme == G_SCALAR) |
|
|
1943 | { |
|
|
1944 | if (sp == bot) |
|
|
1945 | XPUSHs (&PL_sv_undef); |
|
|
1946 | |
|
|
1947 | SP = bot + 1; |
|
|
1948 | } |
|
|
1949 | |
|
|
1950 | PUTBACK; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | return NORMAL; |
|
|
1954 | } |
|
|
1955 | |
|
|
1956 | static void |
|
|
1957 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
|
|
1958 | { |
|
|
1959 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1960 | |
|
|
1961 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1962 | && PL_op->op_ppaddr != pp_slf) |
|
|
1963 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1964 | |
|
|
1965 | if (items > 3) |
|
|
1966 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1967 | |
|
|
1968 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1969 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1970 | slf_cv = cv; |
|
|
1971 | |
|
|
1972 | /* we patch the op, and then re-run the whole call */ |
|
|
1973 | /* we have to put the same argument on the stack for this to work */ |
|
|
1974 | /* and this will be done by pp_restore */ |
|
|
1975 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1976 | slf_restore.op_type = OP_CUSTOM; |
|
|
1977 | slf_restore.op_ppaddr = pp_restore; |
|
|
1978 | slf_restore.op_first = PL_op; |
|
|
1979 | |
|
|
1980 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1981 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1982 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1983 | |
|
|
1984 | PL_op->op_ppaddr = pp_slf; |
|
|
1985 | |
|
|
1986 | PL_op = (OP *)&slf_restore; |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | /*****************************************************************************/ |
|
|
1990 | |
|
|
1991 | static void |
|
|
1992 | coro_semaphore_adjust (pTHX_ AV *av, int adjust) |
2387 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
1993 | { |
2388 | { |
1994 | SV *count_sv = AvARRAY (av)[0]; |
2389 | SV *count_sv = AvARRAY (av)[0]; |
1995 | IV count = SvIVX (count_sv); |
2390 | IV count = SvIVX (count_sv); |
1996 | |
2391 | |
1997 | count += adjust; |
2392 | count += adjust; |
1998 | SvIVX (count_sv) = count; |
2393 | SvIVX (count_sv) = count; |
1999 | |
2394 | |
2000 | /* now wake up as many waiters as possible */ |
2395 | /* now wake up as many waiters as are expected to lock */ |
2001 | while (count > 0 && AvFILLp (av) >= count) |
2396 | while (count > 0 && AvFILLp (av) > 0) |
2002 | { |
2397 | { |
2003 | SV *cb; |
2398 | SV *cb; |
2004 | |
2399 | |
2005 | /* swap first two elements so we can shift a waiter */ |
2400 | /* swap first two elements so we can shift a waiter */ |
2006 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2401 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2007 | AvARRAY (av)[1] = count_sv; |
2402 | AvARRAY (av)[1] = count_sv; |
2008 | cb = av_shift (av); |
2403 | cb = av_shift (av); |
2009 | |
2404 | |
2010 | if (SvOBJECT (cb)) |
2405 | if (SvOBJECT (cb)) |
|
|
2406 | { |
2011 | api_ready (aTHX_ cb); |
2407 | api_ready (aTHX_ cb); |
2012 | else |
2408 | --count; |
2013 | croak ("callbacks not yet supported"); |
2409 | } |
|
|
2410 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2411 | { |
|
|
2412 | dSP; |
|
|
2413 | PUSHMARK (SP); |
|
|
2414 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2415 | PUTBACK; |
|
|
2416 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2417 | } |
2014 | |
2418 | |
2015 | SvREFCNT_dec (cb); |
2419 | SvREFCNT_dec (cb); |
2016 | |
|
|
2017 | --count; |
|
|
2018 | } |
2420 | } |
2019 | } |
2421 | } |
2020 | |
2422 | |
2021 | static void |
2423 | static void |
2022 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2424 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2023 | { |
2425 | { |
2024 | /* call $sem->adjust (0) to possibly wake up some waiters */ |
2426 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2025 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2427 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2026 | } |
2428 | } |
2027 | |
2429 | |
2028 | static int |
2430 | static int |
2029 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2431 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2030 | { |
2432 | { |
2031 | AV *av = (AV *)frame->data; |
2433 | AV *av = (AV *)frame->data; |
2032 | SV *count_sv = AvARRAY (av)[0]; |
2434 | SV *count_sv = AvARRAY (av)[0]; |
2033 | |
2435 | |
|
|
2436 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2437 | if (CORO_THROW) |
|
|
2438 | return 0; |
2034 | if (SvIVX (count_sv) > 0) |
2439 | else if (SvIVX (count_sv) > 0) |
2035 | { |
2440 | { |
2036 | SvSTATE_current->on_destroy = 0; |
2441 | SvSTATE_current->on_destroy = 0; |
|
|
2442 | |
|
|
2443 | if (acquire) |
2037 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2444 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2445 | else |
|
|
2446 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2447 | |
2038 | return 0; |
2448 | return 0; |
2039 | } |
2449 | } |
2040 | else |
2450 | else |
2041 | { |
2451 | { |
2042 | int i; |
2452 | int i; |
… | |
… | |
2051 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2461 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2052 | return 1; |
2462 | return 1; |
2053 | } |
2463 | } |
2054 | } |
2464 | } |
2055 | |
2465 | |
2056 | static void |
2466 | static int |
|
|
2467 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2468 | { |
|
|
2469 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2470 | } |
|
|
2471 | |
|
|
2472 | static int |
|
|
2473 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2474 | { |
|
|
2475 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2476 | } |
|
|
2477 | |
|
|
2478 | static void |
2057 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2479 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2058 | { |
2480 | { |
2059 | AV *av = (AV *)SvRV (arg [0]); |
2481 | AV *av = (AV *)SvRV (arg [0]); |
2060 | |
2482 | |
2061 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2483 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2062 | { |
2484 | { |
… | |
… | |
2072 | |
2494 | |
2073 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2495 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2074 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2496 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2075 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2497 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2076 | } |
2498 | } |
|
|
2499 | } |
2077 | |
2500 | |
|
|
2501 | static void |
|
|
2502 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2503 | { |
|
|
2504 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
2078 | frame->check = slf_check_semaphore_down; |
2505 | frame->check = slf_check_semaphore_down; |
|
|
2506 | } |
2079 | |
2507 | |
|
|
2508 | static void |
|
|
2509 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2510 | { |
|
|
2511 | if (items >= 2) |
|
|
2512 | { |
|
|
2513 | /* callback form */ |
|
|
2514 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2515 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2516 | |
|
|
2517 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2518 | |
|
|
2519 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2520 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2521 | |
|
|
2522 | frame->prepare = prepare_nop; |
|
|
2523 | frame->check = slf_check_nop; |
|
|
2524 | } |
|
|
2525 | else |
|
|
2526 | { |
|
|
2527 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2528 | frame->check = slf_check_semaphore_wait; |
|
|
2529 | } |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | /* signal */ |
|
|
2533 | |
|
|
2534 | static void |
|
|
2535 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2536 | { |
|
|
2537 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2538 | |
|
|
2539 | /* now signal count waiters */ |
|
|
2540 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2541 | { |
|
|
2542 | SV *cb; |
|
|
2543 | |
|
|
2544 | /* swap first two elements so we can shift a waiter */ |
|
|
2545 | cb = AvARRAY (av)[0]; |
|
|
2546 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2547 | AvARRAY (av)[1] = cb; |
|
|
2548 | |
|
|
2549 | cb = av_shift (av); |
|
|
2550 | |
|
|
2551 | api_ready (aTHX_ cb); |
|
|
2552 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2553 | SvREFCNT_dec (cb); |
|
|
2554 | |
|
|
2555 | --count; |
|
|
2556 | } |
|
|
2557 | } |
|
|
2558 | |
|
|
2559 | static int |
|
|
2560 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2561 | { |
|
|
2562 | /* if we are about to throw, also stop waiting */ |
|
|
2563 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2564 | } |
|
|
2565 | |
|
|
2566 | static void |
|
|
2567 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2568 | { |
|
|
2569 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2570 | |
|
|
2571 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2572 | { |
|
|
2573 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2574 | frame->prepare = prepare_nop; |
|
|
2575 | frame->check = slf_check_nop; |
|
|
2576 | } |
|
|
2577 | else |
|
|
2578 | { |
|
|
2579 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2580 | |
|
|
2581 | av_push (av, waiter); |
|
|
2582 | |
|
|
2583 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2584 | frame->prepare = prepare_schedule; |
|
|
2585 | frame->check = slf_check_signal_wait; |
|
|
2586 | } |
2080 | } |
2587 | } |
2081 | |
2588 | |
2082 | /*****************************************************************************/ |
2589 | /*****************************************************************************/ |
|
|
2590 | /* Coro::AIO */ |
2083 | |
2591 | |
2084 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2592 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
2085 | |
2593 | |
2086 | /* create a closure from XS, returns a code reference */ |
2594 | /* helper storage struct */ |
2087 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2595 | struct io_state |
2088 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2089 | static SV * |
|
|
2090 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2091 | { |
2596 | { |
2092 | CV *cv = (CV *)NEWSV (0, 0); |
2597 | int errorno; |
|
|
2598 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2599 | int laststatval; |
|
|
2600 | Stat_t statcache; |
|
|
2601 | }; |
2093 | |
2602 | |
|
|
2603 | static void |
|
|
2604 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2605 | { |
|
|
2606 | dXSARGS; |
|
|
2607 | AV *state = (AV *)GENSUB_ARG; |
|
|
2608 | SV *coro = av_pop (state); |
|
|
2609 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2610 | |
|
|
2611 | av_extend (state, items - 1); |
|
|
2612 | |
2094 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2613 | sv_upgrade (data_sv, SVt_PV); |
|
|
2614 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2615 | SvPOK_only (data_sv); |
2095 | |
2616 | |
2096 | CvANON_on (cv); |
2617 | { |
2097 | CvISXSUB_on (cv); |
2618 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
2098 | CvXSUB (cv) = xsub; |
|
|
2099 | GENSUB_ARG = arg; |
|
|
2100 | |
2619 | |
2101 | return newRV_noinc ((SV *)cv); |
2620 | data->errorno = errno; |
|
|
2621 | data->laststype = PL_laststype; |
|
|
2622 | data->laststatval = PL_laststatval; |
|
|
2623 | data->statcache = PL_statcache; |
|
|
2624 | } |
|
|
2625 | |
|
|
2626 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2627 | { |
|
|
2628 | int i; |
|
|
2629 | |
|
|
2630 | for (i = 0; i < items; ++i) |
|
|
2631 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | av_push (state, data_sv); |
|
|
2635 | |
|
|
2636 | api_ready (aTHX_ coro); |
|
|
2637 | SvREFCNT_dec (coro); |
|
|
2638 | SvREFCNT_dec ((AV *)state); |
|
|
2639 | } |
|
|
2640 | |
|
|
2641 | static int |
|
|
2642 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2643 | { |
|
|
2644 | AV *state = (AV *)frame->data; |
|
|
2645 | |
|
|
2646 | /* if we are about to throw, return early */ |
|
|
2647 | /* this does not cancel the aio request, but at least */ |
|
|
2648 | /* it quickly returns */ |
|
|
2649 | if (CORO_THROW) |
|
|
2650 | return 0; |
|
|
2651 | |
|
|
2652 | /* one element that is an RV? repeat! */ |
|
|
2653 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2654 | return 1; |
|
|
2655 | |
|
|
2656 | /* restore status */ |
|
|
2657 | { |
|
|
2658 | SV *data_sv = av_pop (state); |
|
|
2659 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2660 | |
|
|
2661 | errno = data->errorno; |
|
|
2662 | PL_laststype = data->laststype; |
|
|
2663 | PL_laststatval = data->laststatval; |
|
|
2664 | PL_statcache = data->statcache; |
|
|
2665 | |
|
|
2666 | SvREFCNT_dec (data_sv); |
|
|
2667 | } |
|
|
2668 | |
|
|
2669 | /* push result values */ |
|
|
2670 | { |
|
|
2671 | dSP; |
|
|
2672 | int i; |
|
|
2673 | |
|
|
2674 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2675 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2676 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2677 | |
|
|
2678 | PUTBACK; |
|
|
2679 | } |
|
|
2680 | |
|
|
2681 | return 0; |
|
|
2682 | } |
|
|
2683 | |
|
|
2684 | static void |
|
|
2685 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2686 | { |
|
|
2687 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2688 | SV *coro_hv = SvRV (coro_current); |
|
|
2689 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2690 | |
|
|
2691 | /* put our coroutine id on the state arg */ |
|
|
2692 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2693 | |
|
|
2694 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2695 | if (coro->prio) |
|
|
2696 | { |
|
|
2697 | dSP; |
|
|
2698 | |
|
|
2699 | static SV *prio_cv; |
|
|
2700 | static SV *prio_sv; |
|
|
2701 | |
|
|
2702 | if (expect_false (!prio_cv)) |
|
|
2703 | { |
|
|
2704 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2705 | prio_sv = newSViv (0); |
|
|
2706 | } |
|
|
2707 | |
|
|
2708 | PUSHMARK (SP); |
|
|
2709 | sv_setiv (prio_sv, coro->prio); |
|
|
2710 | XPUSHs (prio_sv); |
|
|
2711 | |
|
|
2712 | PUTBACK; |
|
|
2713 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2714 | } |
|
|
2715 | |
|
|
2716 | /* now call the original request */ |
|
|
2717 | { |
|
|
2718 | dSP; |
|
|
2719 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2720 | int i; |
|
|
2721 | |
|
|
2722 | PUSHMARK (SP); |
|
|
2723 | |
|
|
2724 | /* first push all args to the stack */ |
|
|
2725 | EXTEND (SP, items + 1); |
|
|
2726 | |
|
|
2727 | for (i = 0; i < items; ++i) |
|
|
2728 | PUSHs (arg [i]); |
|
|
2729 | |
|
|
2730 | /* now push the callback closure */ |
|
|
2731 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2732 | |
|
|
2733 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2734 | PUTBACK; |
|
|
2735 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2736 | } |
|
|
2737 | |
|
|
2738 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2739 | frame->data = (void *)state; |
|
|
2740 | frame->prepare = prepare_schedule; |
|
|
2741 | frame->check = slf_check_aio_req; |
|
|
2742 | } |
|
|
2743 | |
|
|
2744 | static void |
|
|
2745 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2746 | { |
|
|
2747 | dXSARGS; |
|
|
2748 | |
|
|
2749 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2750 | |
|
|
2751 | XSRETURN_EMPTY; |
2102 | } |
2752 | } |
2103 | |
2753 | |
2104 | /*****************************************************************************/ |
2754 | /*****************************************************************************/ |
|
|
2755 | |
|
|
2756 | #if CORO_CLONE |
|
|
2757 | # include "clone.c" |
|
|
2758 | #endif |
2105 | |
2759 | |
2106 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2760 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2107 | |
2761 | |
2108 | PROTOTYPES: DISABLE |
2762 | PROTOTYPES: DISABLE |
2109 | |
2763 | |
… | |
… | |
2114 | coro_thx = PERL_GET_CONTEXT; |
2768 | coro_thx = PERL_GET_CONTEXT; |
2115 | # endif |
2769 | # endif |
2116 | #endif |
2770 | #endif |
2117 | BOOT_PAGESIZE; |
2771 | BOOT_PAGESIZE; |
2118 | |
2772 | |
|
|
2773 | cctx_current = cctx_new_empty (); |
|
|
2774 | |
2119 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2775 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2120 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2776 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2121 | |
2777 | |
2122 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2778 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2123 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
2779 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
… | |
… | |
2142 | |
2798 | |
2143 | { |
2799 | { |
2144 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2800 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2145 | |
2801 | |
2146 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2802 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2147 | hv_store_ent (PL_custom_op_names, slf, |
2803 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
2148 | newSVpv ("coro_slf", 0), 0); |
|
|
2149 | |
2804 | |
2150 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
2805 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
2151 | hv_store_ent (PL_custom_op_descs, slf, |
2806 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
2152 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2153 | } |
2807 | } |
2154 | |
2808 | |
2155 | coroapi.ver = CORO_API_VERSION; |
2809 | coroapi.ver = CORO_API_VERSION; |
2156 | coroapi.rev = CORO_API_REVISION; |
2810 | coroapi.rev = CORO_API_REVISION; |
2157 | |
2811 | |
… | |
… | |
2176 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2830 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2177 | } |
2831 | } |
2178 | |
2832 | |
2179 | SV * |
2833 | SV * |
2180 | new (char *klass, ...) |
2834 | new (char *klass, ...) |
|
|
2835 | ALIAS: |
|
|
2836 | Coro::new = 1 |
2181 | CODE: |
2837 | CODE: |
2182 | { |
2838 | { |
2183 | struct coro *coro; |
2839 | struct coro *coro; |
2184 | MAGIC *mg; |
2840 | MAGIC *mg; |
2185 | HV *hv; |
2841 | HV *hv; |
|
|
2842 | CV *cb; |
2186 | int i; |
2843 | int i; |
|
|
2844 | |
|
|
2845 | if (items > 1) |
|
|
2846 | { |
|
|
2847 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2848 | |
|
|
2849 | if (!ix) |
|
|
2850 | { |
|
|
2851 | if (CvISXSUB (cb)) |
|
|
2852 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2853 | |
|
|
2854 | if (!CvROOT (cb)) |
|
|
2855 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2856 | } |
|
|
2857 | } |
2187 | |
2858 | |
2188 | Newz (0, coro, 1, struct coro); |
2859 | Newz (0, coro, 1, struct coro); |
2189 | coro->args = newAV (); |
2860 | coro->args = newAV (); |
2190 | coro->flags = CF_NEW; |
2861 | coro->flags = CF_NEW; |
2191 | |
2862 | |
… | |
… | |
2196 | coro->hv = hv = newHV (); |
2867 | coro->hv = hv = newHV (); |
2197 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2868 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2198 | mg->mg_flags |= MGf_DUP; |
2869 | mg->mg_flags |= MGf_DUP; |
2199 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2870 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2200 | |
2871 | |
|
|
2872 | if (items > 1) |
|
|
2873 | { |
2201 | av_extend (coro->args, items - 1); |
2874 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2875 | |
|
|
2876 | if (ix) |
|
|
2877 | { |
|
|
2878 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2879 | cb = cv_coro_run; |
|
|
2880 | } |
|
|
2881 | |
|
|
2882 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2883 | |
2202 | for (i = 1; i < items; i++) |
2884 | for (i = 2; i < items; i++) |
2203 | av_push (coro->args, newSVsv (ST (i))); |
2885 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2886 | } |
2204 | } |
2887 | } |
2205 | OUTPUT: |
2888 | OUTPUT: |
2206 | RETVAL |
2889 | RETVAL |
2207 | |
|
|
2208 | void |
|
|
2209 | _set_stacklevel (...) |
|
|
2210 | CODE: |
|
|
2211 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
|
|
2212 | |
2890 | |
2213 | void |
2891 | void |
2214 | transfer (...) |
2892 | transfer (...) |
2215 | PROTOTYPE: $$ |
2893 | PROTOTYPE: $$ |
2216 | CODE: |
2894 | CODE: |
2217 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
2895 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2218 | |
2896 | |
2219 | bool |
2897 | bool |
2220 | _destroy (SV *coro_sv) |
2898 | _destroy (SV *coro_sv) |
2221 | CODE: |
2899 | CODE: |
2222 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2900 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2226 | void |
2904 | void |
2227 | _exit (int code) |
2905 | _exit (int code) |
2228 | PROTOTYPE: $ |
2906 | PROTOTYPE: $ |
2229 | CODE: |
2907 | CODE: |
2230 | _exit (code); |
2908 | _exit (code); |
|
|
2909 | |
|
|
2910 | SV * |
|
|
2911 | clone (Coro::State coro) |
|
|
2912 | CODE: |
|
|
2913 | { |
|
|
2914 | #if CORO_CLONE |
|
|
2915 | struct coro *ncoro = coro_clone (coro); |
|
|
2916 | MAGIC *mg; |
|
|
2917 | /* TODO: too much duplication */ |
|
|
2918 | ncoro->hv = newHV (); |
|
|
2919 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
2920 | mg->mg_flags |= MGf_DUP; |
|
|
2921 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
2922 | #else |
|
|
2923 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
2924 | #endif |
|
|
2925 | } |
|
|
2926 | OUTPUT: |
|
|
2927 | RETVAL |
2231 | |
2928 | |
2232 | int |
2929 | int |
2233 | cctx_stacksize (int new_stacksize = 0) |
2930 | cctx_stacksize (int new_stacksize = 0) |
2234 | PROTOTYPE: ;$ |
2931 | PROTOTYPE: ;$ |
2235 | CODE: |
2932 | CODE: |
… | |
… | |
2340 | |
3037 | |
2341 | void |
3038 | void |
2342 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3039 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2343 | PROTOTYPE: $;$ |
3040 | PROTOTYPE: $;$ |
2344 | CODE: |
3041 | CODE: |
|
|
3042 | { |
|
|
3043 | struct coro *current = SvSTATE_current; |
|
|
3044 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2345 | SvREFCNT_dec (self->throw); |
3045 | SvREFCNT_dec (*throwp); |
2346 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
3046 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3047 | } |
2347 | |
3048 | |
2348 | void |
3049 | void |
2349 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3050 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2350 | PROTOTYPE: $;$ |
3051 | PROTOTYPE: $;$ |
2351 | C_ARGS: aTHX_ coro, flags |
3052 | C_ARGS: aTHX_ coro, flags |
2352 | |
3053 | |
2353 | SV * |
3054 | SV * |
2354 | has_cctx (Coro::State coro) |
3055 | has_cctx (Coro::State coro) |
2355 | PROTOTYPE: $ |
3056 | PROTOTYPE: $ |
2356 | CODE: |
3057 | CODE: |
2357 | RETVAL = boolSV (!!coro->cctx); |
3058 | /* maybe manage the running flag differently */ |
|
|
3059 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2358 | OUTPUT: |
3060 | OUTPUT: |
2359 | RETVAL |
3061 | RETVAL |
2360 | |
3062 | |
2361 | int |
3063 | int |
2362 | is_traced (Coro::State coro) |
3064 | is_traced (Coro::State coro) |
… | |
… | |
2382 | |
3084 | |
2383 | void |
3085 | void |
2384 | force_cctx () |
3086 | force_cctx () |
2385 | PROTOTYPE: |
3087 | PROTOTYPE: |
2386 | CODE: |
3088 | CODE: |
2387 | SvSTATE_current->cctx->idle_sp = 0; |
3089 | cctx_current->idle_sp = 0; |
2388 | |
3090 | |
2389 | void |
3091 | void |
2390 | swap_defsv (Coro::State self) |
3092 | swap_defsv (Coro::State self) |
2391 | PROTOTYPE: $ |
3093 | PROTOTYPE: $ |
2392 | ALIAS: |
3094 | ALIAS: |
… | |
… | |
2400 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3102 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2401 | |
3103 | |
2402 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3104 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2403 | } |
3105 | } |
2404 | |
3106 | |
|
|
3107 | |
2405 | MODULE = Coro::State PACKAGE = Coro |
3108 | MODULE = Coro::State PACKAGE = Coro |
2406 | |
3109 | |
2407 | BOOT: |
3110 | BOOT: |
2408 | { |
3111 | { |
2409 | int i; |
3112 | int i; |
2410 | |
3113 | |
2411 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2412 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3114 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2413 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3115 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2414 | |
3116 | cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); |
|
|
3117 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2415 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3118 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2416 | SvREADONLY_on (coro_current); |
3119 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3120 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3121 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3122 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
3123 | |
|
|
3124 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3125 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3126 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3127 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2417 | |
3128 | |
2418 | coro_stash = gv_stashpv ("Coro", TRUE); |
3129 | coro_stash = gv_stashpv ("Coro", TRUE); |
2419 | |
3130 | |
2420 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3131 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2421 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3132 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
2429 | |
3140 | |
2430 | { |
3141 | { |
2431 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3142 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2432 | |
3143 | |
2433 | coroapi.schedule = api_schedule; |
3144 | coroapi.schedule = api_schedule; |
|
|
3145 | coroapi.schedule_to = api_schedule_to; |
2434 | coroapi.cede = api_cede; |
3146 | coroapi.cede = api_cede; |
2435 | coroapi.cede_notself = api_cede_notself; |
3147 | coroapi.cede_notself = api_cede_notself; |
2436 | coroapi.ready = api_ready; |
3148 | coroapi.ready = api_ready; |
2437 | coroapi.is_ready = api_is_ready; |
3149 | coroapi.is_ready = api_is_ready; |
2438 | coroapi.nready = coro_nready; |
3150 | coroapi.nready = coro_nready; |
2439 | coroapi.current = coro_current; |
3151 | coroapi.current = coro_current; |
2440 | |
3152 | |
2441 | GCoroAPI = &coroapi; |
3153 | /*GCoroAPI = &coroapi;*/ |
2442 | sv_setiv (sv, (IV)&coroapi); |
3154 | sv_setiv (sv, (IV)&coroapi); |
2443 | SvREADONLY_on (sv); |
3155 | SvREADONLY_on (sv); |
2444 | } |
3156 | } |
2445 | } |
3157 | } |
2446 | |
3158 | |
2447 | void |
3159 | void |
|
|
3160 | terminate (...) |
|
|
3161 | CODE: |
|
|
3162 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3163 | |
|
|
3164 | void |
2448 | schedule (...) |
3165 | schedule (...) |
2449 | CODE: |
3166 | CODE: |
2450 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); |
3167 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3168 | |
|
|
3169 | void |
|
|
3170 | schedule_to (...) |
|
|
3171 | CODE: |
|
|
3172 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3173 | |
|
|
3174 | void |
|
|
3175 | cede_to (...) |
|
|
3176 | CODE: |
|
|
3177 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
2451 | |
3178 | |
2452 | void |
3179 | void |
2453 | cede (...) |
3180 | cede (...) |
2454 | CODE: |
3181 | CODE: |
2455 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); |
3182 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2456 | |
3183 | |
2457 | void |
3184 | void |
2458 | cede_notself (...) |
3185 | cede_notself (...) |
2459 | CODE: |
3186 | CODE: |
2460 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); |
3187 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
|
|
3188 | |
|
|
3189 | void |
|
|
3190 | _cancel (Coro::State self) |
|
|
3191 | CODE: |
|
|
3192 | coro_state_destroy (aTHX_ self); |
|
|
3193 | coro_call_on_destroy (aTHX_ self); |
2461 | |
3194 | |
2462 | void |
3195 | void |
2463 | _set_current (SV *current) |
3196 | _set_current (SV *current) |
2464 | PROTOTYPE: $ |
3197 | PROTOTYPE: $ |
2465 | CODE: |
3198 | CODE: |
… | |
… | |
2510 | CODE: |
3243 | CODE: |
2511 | RETVAL = coro_nready; |
3244 | RETVAL = coro_nready; |
2512 | OUTPUT: |
3245 | OUTPUT: |
2513 | RETVAL |
3246 | RETVAL |
2514 | |
3247 | |
2515 | # for async_pool speedup |
|
|
2516 | void |
3248 | void |
2517 | _pool_1 (SV *cb) |
3249 | _pool_handler (...) |
2518 | CODE: |
3250 | CODE: |
2519 | { |
3251 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
2520 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2521 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2522 | AV *defav = GvAV (PL_defgv); |
|
|
2523 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2524 | AV *invoke_av; |
|
|
2525 | int i, len; |
|
|
2526 | |
|
|
2527 | if (!invoke) |
|
|
2528 | { |
|
|
2529 | SV *old = PL_diehook; |
|
|
2530 | PL_diehook = 0; |
|
|
2531 | SvREFCNT_dec (old); |
|
|
2532 | croak ("\3async_pool terminate\2\n"); |
|
|
2533 | } |
|
|
2534 | |
|
|
2535 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2536 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2537 | |
|
|
2538 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2539 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2540 | |
|
|
2541 | invoke_av = (AV *)SvRV (invoke); |
|
|
2542 | len = av_len (invoke_av); |
|
|
2543 | |
|
|
2544 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2545 | |
|
|
2546 | if (len > 0) |
|
|
2547 | { |
|
|
2548 | av_fill (defav, len - 1); |
|
|
2549 | for (i = 0; i < len; ++i) |
|
|
2550 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2551 | } |
|
|
2552 | } |
|
|
2553 | |
3252 | |
2554 | void |
3253 | void |
2555 | _pool_2 (SV *cb) |
3254 | async_pool (SV *cv, ...) |
2556 | CODE: |
|
|
2557 | { |
|
|
2558 | struct coro *coro = SvSTATE_current; |
|
|
2559 | |
|
|
2560 | sv_setsv (cb, &PL_sv_undef); |
|
|
2561 | |
|
|
2562 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2563 | coro->saved_deffh = 0; |
|
|
2564 | |
|
|
2565 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2566 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2567 | { |
|
|
2568 | SV *old = PL_diehook; |
|
|
2569 | PL_diehook = 0; |
|
|
2570 | SvREFCNT_dec (old); |
|
|
2571 | croak ("\3async_pool terminate\2\n"); |
|
|
2572 | } |
|
|
2573 | |
|
|
2574 | av_clear (GvAV (PL_defgv)); |
|
|
2575 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2576 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2577 | |
|
|
2578 | coro->prio = 0; |
|
|
2579 | |
|
|
2580 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2581 | api_trace (aTHX_ coro_current, 0); |
|
|
2582 | |
|
|
2583 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2584 | } |
|
|
2585 | |
|
|
2586 | |
|
|
2587 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2588 | |
|
|
2589 | void |
|
|
2590 | _get_state (SV *self) |
|
|
2591 | PROTOTYPE: $ |
3255 | PROTOTYPE: &@ |
2592 | PPCODE: |
3256 | PPCODE: |
2593 | { |
3257 | { |
2594 | AV *defav = GvAV (PL_defgv); |
3258 | HV *hv = (HV *)av_pop (av_async_pool); |
2595 | AV *av = newAV (); |
3259 | AV *av = newAV (); |
|
|
3260 | SV *cb = ST (0); |
2596 | int i; |
3261 | int i; |
2597 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2598 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2599 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2600 | SvPOK_only (data_sv); |
|
|
2601 | |
3262 | |
2602 | data->errorno = errno; |
3263 | av_extend (av, items - 2); |
2603 | data->laststype = PL_laststype; |
3264 | for (i = 1; i < items; ++i) |
2604 | data->laststatval = PL_laststatval; |
|
|
2605 | data->statcache = PL_statcache; |
|
|
2606 | |
|
|
2607 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2608 | |
|
|
2609 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2610 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3265 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
2611 | |
3266 | |
2612 | av_push (av, data_sv); |
3267 | if ((SV *)hv == &PL_sv_undef) |
2613 | |
|
|
2614 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2615 | |
|
|
2616 | api_ready (aTHX_ self); |
|
|
2617 | } |
|
|
2618 | |
|
|
2619 | void |
|
|
2620 | _set_state (SV *state) |
|
|
2621 | PROTOTYPE: $ |
|
|
2622 | PPCODE: |
|
|
2623 | { |
|
|
2624 | AV *av = (AV *)SvRV (state); |
|
|
2625 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2626 | int i; |
|
|
2627 | |
|
|
2628 | errno = data->errorno; |
|
|
2629 | PL_laststype = data->laststype; |
|
|
2630 | PL_laststatval = data->laststatval; |
|
|
2631 | PL_statcache = data->statcache; |
|
|
2632 | |
|
|
2633 | EXTEND (SP, AvFILLp (av)); |
|
|
2634 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2635 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2636 | } |
|
|
2637 | |
|
|
2638 | |
|
|
2639 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2640 | |
|
|
2641 | BOOT: |
|
|
2642 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2643 | |
|
|
2644 | void |
|
|
2645 | _schedule (...) |
|
|
2646 | CODE: |
|
|
2647 | { |
|
|
2648 | static int incede; |
|
|
2649 | |
|
|
2650 | api_cede_notself (aTHX); |
|
|
2651 | |
|
|
2652 | ++incede; |
|
|
2653 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2654 | ; |
|
|
2655 | |
|
|
2656 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2657 | if (coro_nready >= incede) |
|
|
2658 | { |
3268 | { |
2659 | PUSHMARK (SP); |
3269 | PUSHMARK (SP); |
|
|
3270 | EXTEND (SP, 2); |
|
|
3271 | PUSHs (sv_Coro); |
|
|
3272 | PUSHs ((SV *)cv_pool_handler); |
2660 | PUTBACK; |
3273 | PUTBACK; |
2661 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3274 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
2662 | SPAGAIN; |
3275 | SPAGAIN; |
|
|
3276 | |
|
|
3277 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
2663 | } |
3278 | } |
2664 | |
3279 | |
2665 | --incede; |
3280 | { |
|
|
3281 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3282 | |
|
|
3283 | assert (!coro->invoke_cb); |
|
|
3284 | assert (!coro->invoke_av); |
|
|
3285 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3286 | coro->invoke_av = av; |
|
|
3287 | } |
|
|
3288 | |
|
|
3289 | api_ready (aTHX_ (SV *)hv); |
|
|
3290 | |
|
|
3291 | if (GIMME_V != G_VOID) |
|
|
3292 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3293 | else |
|
|
3294 | SvREFCNT_dec (hv); |
2666 | } |
3295 | } |
|
|
3296 | |
|
|
3297 | SV * |
|
|
3298 | rouse_cb () |
|
|
3299 | PROTOTYPE: |
|
|
3300 | CODE: |
|
|
3301 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3302 | OUTPUT: |
|
|
3303 | RETVAL |
|
|
3304 | |
|
|
3305 | void |
|
|
3306 | rouse_wait (...) |
|
|
3307 | PROTOTYPE: ;$ |
|
|
3308 | PPCODE: |
|
|
3309 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2667 | |
3310 | |
2668 | |
3311 | |
2669 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3312 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2670 | |
3313 | |
2671 | BOOT: |
3314 | BOOT: |
2672 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3315 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2673 | |
3316 | |
|
|
3317 | |
2674 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
3318 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2675 | |
3319 | |
2676 | SV * |
3320 | SV * |
2677 | new (SV *klass, SV *count_ = 0) |
3321 | new (SV *klass, SV *count = 0) |
2678 | CODE: |
3322 | CODE: |
2679 | { |
3323 | RETVAL = sv_bless ( |
2680 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
3324 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
2681 | AV *av = newAV (); |
3325 | GvSTASH (CvGV (cv)) |
2682 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
3326 | ); |
2683 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
3327 | OUTPUT: |
2684 | } |
3328 | RETVAL |
|
|
3329 | |
|
|
3330 | # helper for Coro::Channel |
|
|
3331 | SV * |
|
|
3332 | _alloc (int count) |
|
|
3333 | CODE: |
|
|
3334 | RETVAL = coro_waitarray_new (aTHX_ count); |
2685 | OUTPUT: |
3335 | OUTPUT: |
2686 | RETVAL |
3336 | RETVAL |
2687 | |
3337 | |
2688 | SV * |
3338 | SV * |
2689 | count (SV *self) |
3339 | count (SV *self) |
… | |
… | |
2698 | adjust = 1 |
3348 | adjust = 1 |
2699 | CODE: |
3349 | CODE: |
2700 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
3350 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2701 | |
3351 | |
2702 | void |
3352 | void |
2703 | down (SV *self) |
3353 | down (...) |
2704 | CODE: |
3354 | CODE: |
2705 | api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); |
3355 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3356 | |
|
|
3357 | void |
|
|
3358 | wait (...) |
|
|
3359 | CODE: |
|
|
3360 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
2706 | |
3361 | |
2707 | void |
3362 | void |
2708 | try (SV *self) |
3363 | try (SV *self) |
2709 | PPCODE: |
3364 | PPCODE: |
2710 | { |
3365 | { |
… | |
… | |
2722 | XSRETURN_NO; |
3377 | XSRETURN_NO; |
2723 | } |
3378 | } |
2724 | |
3379 | |
2725 | void |
3380 | void |
2726 | waiters (SV *self) |
3381 | waiters (SV *self) |
2727 | CODE: |
3382 | PPCODE: |
2728 | { |
3383 | { |
2729 | AV *av = (AV *)SvRV (self); |
3384 | AV *av = (AV *)SvRV (self); |
|
|
3385 | int wcount = AvFILLp (av) + 1 - 1; |
2730 | |
3386 | |
2731 | if (GIMME_V == G_SCALAR) |
3387 | if (GIMME_V == G_SCALAR) |
2732 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
3388 | XPUSHs (sv_2mortal (newSViv (wcount))); |
2733 | else |
3389 | else |
2734 | { |
3390 | { |
2735 | int i; |
3391 | int i; |
2736 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
3392 | EXTEND (SP, wcount); |
2737 | for (i = 1; i <= AvFILLp (av); ++i) |
3393 | for (i = 1; i <= wcount; ++i) |
2738 | PUSHs (newSVsv (AvARRAY (av)[i])); |
3394 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2739 | } |
3395 | } |
2740 | } |
3396 | } |
2741 | |
3397 | |
|
|
3398 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3399 | |
|
|
3400 | SV * |
|
|
3401 | new (SV *klass) |
|
|
3402 | CODE: |
|
|
3403 | RETVAL = sv_bless ( |
|
|
3404 | coro_waitarray_new (aTHX_ 0), |
|
|
3405 | GvSTASH (CvGV (cv)) |
|
|
3406 | ); |
|
|
3407 | OUTPUT: |
|
|
3408 | RETVAL |
|
|
3409 | |
|
|
3410 | void |
|
|
3411 | wait (...) |
|
|
3412 | CODE: |
|
|
3413 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3414 | |
|
|
3415 | void |
|
|
3416 | broadcast (SV *self) |
|
|
3417 | CODE: |
|
|
3418 | { |
|
|
3419 | AV *av = (AV *)SvRV (self); |
|
|
3420 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3421 | } |
|
|
3422 | |
|
|
3423 | void |
|
|
3424 | send (SV *self) |
|
|
3425 | CODE: |
|
|
3426 | { |
|
|
3427 | AV *av = (AV *)SvRV (self); |
|
|
3428 | |
|
|
3429 | if (AvFILLp (av)) |
|
|
3430 | coro_signal_wake (aTHX_ av, 1); |
|
|
3431 | else |
|
|
3432 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3433 | } |
|
|
3434 | |
|
|
3435 | IV |
|
|
3436 | awaited (SV *self) |
|
|
3437 | CODE: |
|
|
3438 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3439 | OUTPUT: |
|
|
3440 | RETVAL |
|
|
3441 | |
|
|
3442 | |
|
|
3443 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3444 | |
|
|
3445 | BOOT: |
|
|
3446 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3447 | |
|
|
3448 | void |
|
|
3449 | _schedule (...) |
|
|
3450 | CODE: |
|
|
3451 | { |
|
|
3452 | static int incede; |
|
|
3453 | |
|
|
3454 | api_cede_notself (aTHX); |
|
|
3455 | |
|
|
3456 | ++incede; |
|
|
3457 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3458 | ; |
|
|
3459 | |
|
|
3460 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3461 | if (coro_nready >= incede) |
|
|
3462 | { |
|
|
3463 | PUSHMARK (SP); |
|
|
3464 | PUTBACK; |
|
|
3465 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3466 | } |
|
|
3467 | |
|
|
3468 | --incede; |
|
|
3469 | } |
|
|
3470 | |
|
|
3471 | |
|
|
3472 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3473 | |
|
|
3474 | void |
|
|
3475 | _register (char *target, char *proto, SV *req) |
|
|
3476 | CODE: |
|
|
3477 | { |
|
|
3478 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3479 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3480 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3481 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3482 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3483 | } |
|
|
3484 | |