… | |
… | |
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 |
|
|
102 | #endif |
|
|
103 | #ifndef CvISXSUB |
|
|
104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
|
|
105 | #endif |
100 | |
106 | |
101 | /* 5.8.7 */ |
107 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
108 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
109 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
110 | #endif |
… | |
… | |
117 | #endif |
123 | #endif |
118 | |
124 | |
119 | /* The next macros try to return the current stack pointer, in an as |
125 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
126 | * portable way as possible. */ |
121 | #if __GNUC__ >= 4 |
127 | #if __GNUC__ >= 4 |
|
|
128 | # define dSTACKLEVEL int stacklevel_dummy |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
129 | # define STACKLEVEL __builtin_frame_address (0) |
123 | #else |
130 | #else |
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
131 | # define dSTACKLEVEL volatile void *stacklevel |
|
|
132 | # define STACKLEVEL ((void *)&stacklevel) |
125 | #endif |
133 | #endif |
126 | |
134 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
135 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 | |
136 | |
129 | #if __GNUC__ >= 3 |
137 | #if __GNUC__ >= 3 |
… | |
… | |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
148 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
149 | |
142 | #define NOINLINE attribute ((noinline)) |
150 | #define NOINLINE attribute ((noinline)) |
143 | |
151 | |
144 | #include "CoroAPI.h" |
152 | #include "CoroAPI.h" |
|
|
153 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
154 | |
146 | #ifdef USE_ITHREADS |
155 | #ifdef USE_ITHREADS |
147 | # if CORO_PTHREAD |
156 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
157 | static void *coro_thx; |
149 | # endif |
158 | # endif |
150 | #endif |
159 | #endif |
151 | |
160 | |
152 | /* helper storage struct for Coro::AIO */ |
|
|
153 | struct io_state |
|
|
154 | { |
|
|
155 | AV *res; |
|
|
156 | int errorno; |
|
|
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? */ |
161 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
162 | |
|
|
163 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
164 | #define CVf_SLF 0x4000 |
|
|
165 | static OP *pp_slf (pTHX); |
163 | |
166 | |
164 | static U32 cctx_gen; |
167 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
169 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
168 | static JMPENV *main_top_env; |
171 | static JMPENV *main_top_env; |
169 | static HV *coro_state_stash, *coro_stash; |
172 | static HV *coro_state_stash, *coro_stash; |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
173 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
171 | |
174 | |
|
|
175 | static AV *av_destroy; /* destruction queue */ |
|
|
176 | static SV *sv_manager; /* the manager coro */ |
|
|
177 | |
172 | static GV *irsgv; /* $/ */ |
178 | static GV *irsgv; /* $/ */ |
173 | static GV *stdoutgv; /* *STDOUT */ |
179 | static GV *stdoutgv; /* *STDOUT */ |
174 | static SV *rv_diehook; |
180 | static SV *rv_diehook; |
175 | static SV *rv_warnhook; |
181 | static SV *rv_warnhook; |
176 | static HV *hv_sig; /* %SIG */ |
182 | static HV *hv_sig; /* %SIG */ |
177 | |
183 | |
178 | /* async_pool helper stuff */ |
184 | /* async_pool helper stuff */ |
179 | static SV *sv_pool_rss; |
185 | static SV *sv_pool_rss; |
180 | static SV *sv_pool_size; |
186 | static SV *sv_pool_size; |
|
|
187 | static SV *sv_async_pool_idle; /* description string */ |
181 | static AV *av_async_pool; |
188 | static AV *av_async_pool; /* idle pool */ |
|
|
189 | static SV *sv_Coro; /* class string */ |
|
|
190 | static CV *cv_pool_handler; |
|
|
191 | static CV *cv_coro_state_new; |
182 | |
192 | |
183 | /* Coro::AnyEvent */ |
193 | /* Coro::AnyEvent */ |
184 | static SV *sv_activity; |
194 | static SV *sv_activity; |
185 | |
195 | |
186 | static struct coro_cctx *cctx_first; |
196 | static struct coro_cctx *cctx_first; |
… | |
… | |
241 | /* this is a structure representing a perl-level coroutine */ |
251 | /* this is a structure representing a perl-level coroutine */ |
242 | struct coro { |
252 | struct coro { |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
253 | /* the C coroutine allocated to this perl coroutine, if any */ |
244 | coro_cctx *cctx; |
254 | coro_cctx *cctx; |
245 | |
255 | |
246 | /* process data */ |
256 | /* state data */ |
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
257 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
258 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
259 | perl_slots *slot; /* basically the saved sp */ |
250 | |
260 | |
|
|
261 | CV *startcv; /* the CV to execute */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
262 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
263 | int refcnt; /* coroutines are refcounted, yes */ |
253 | int flags; /* CF_ flags */ |
264 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
265 | HV *hv; /* the perl hash associated with this coro, if any */ |
255 | void (*on_destroy)(pTHX_ struct coro *coro); |
266 | void (*on_destroy)(pTHX_ struct coro *coro); |
256 | |
267 | |
257 | /* statistics */ |
268 | /* statistics */ |
258 | int usecount; /* number of transfers to this coro */ |
269 | int usecount; /* number of transfers to this coro */ |
259 | |
270 | |
260 | /* coro process data */ |
271 | /* coro process data */ |
261 | int prio; |
272 | int prio; |
262 | SV *throw; /* exception to be thrown */ |
273 | SV *except; /* exception to be thrown */ |
|
|
274 | SV *rouse_cb; |
263 | |
275 | |
264 | /* async_pool */ |
276 | /* async_pool */ |
265 | SV *saved_deffh; |
277 | SV *saved_deffh; |
|
|
278 | SV *invoke_cb; |
|
|
279 | AV *invoke_av; |
266 | |
280 | |
267 | /* linked list */ |
281 | /* linked list */ |
268 | struct coro *next, *prev; |
282 | struct coro *next, *prev; |
269 | }; |
283 | }; |
270 | |
284 | |
271 | typedef struct coro *Coro__State; |
285 | typedef struct coro *Coro__State; |
272 | typedef struct coro *Coro__State_or_hashref; |
286 | typedef struct coro *Coro__State_or_hashref; |
273 | |
287 | |
|
|
288 | /* the following variables are effectively part of the perl context */ |
|
|
289 | /* and get copied between struct coro and these variables */ |
|
|
290 | /* the mainr easonw e don't support windows process emulation */ |
274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
291 | static struct CoroSLF slf_frame; /* the current slf frame */ |
275 | |
292 | |
276 | /** Coro ********************************************************************/ |
293 | /** Coro ********************************************************************/ |
277 | |
294 | |
278 | #define PRIO_MAX 3 |
295 | #define PRIO_MAX 3 |
… | |
… | |
284 | |
301 | |
285 | /* for Coro.pm */ |
302 | /* for Coro.pm */ |
286 | static SV *coro_current; |
303 | static SV *coro_current; |
287 | static SV *coro_readyhook; |
304 | static SV *coro_readyhook; |
288 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
305 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
|
|
306 | static CV *cv_coro_run, *cv_coro_terminate; |
289 | static struct coro *coro_first; |
307 | static struct coro *coro_first; |
290 | #define coro_nready coroapi.nready |
308 | #define coro_nready coroapi.nready |
291 | |
309 | |
292 | /** lowlevel stuff **********************************************************/ |
310 | /** lowlevel stuff **********************************************************/ |
293 | |
311 | |
… | |
… | |
317 | #if PERL_VERSION_ATLEAST (5,10,0) |
335 | #if PERL_VERSION_ATLEAST (5,10,0) |
318 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
336 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
319 | get_hv (name, create); |
337 | get_hv (name, create); |
320 | #endif |
338 | #endif |
321 | return get_hv (name, create); |
339 | return get_hv (name, create); |
|
|
340 | } |
|
|
341 | |
|
|
342 | /* may croak */ |
|
|
343 | INLINE CV * |
|
|
344 | coro_sv_2cv (pTHX_ SV *sv) |
|
|
345 | { |
|
|
346 | HV *st; |
|
|
347 | GV *gvp; |
|
|
348 | return sv_2cv (sv, &st, &gvp, 0); |
322 | } |
349 | } |
323 | |
350 | |
324 | static AV * |
351 | static AV * |
325 | coro_clone_padlist (pTHX_ CV *cv) |
352 | coro_clone_padlist (pTHX_ CV *cv) |
326 | { |
353 | { |
… | |
… | |
380 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
407 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
381 | |
408 | |
382 | return 0; |
409 | return 0; |
383 | } |
410 | } |
384 | |
411 | |
385 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
412 | #define CORO_MAGIC_type_cv 26 |
386 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
413 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
387 | |
414 | |
388 | static MGVTBL coro_cv_vtbl = { |
415 | static MGVTBL coro_cv_vtbl = { |
389 | 0, 0, 0, 0, |
416 | 0, 0, 0, 0, |
390 | coro_cv_free |
417 | coro_cv_free |
391 | }; |
418 | }; |
392 | |
419 | |
|
|
420 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
421 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
422 | ? SvMAGIC (sv) \ |
|
|
423 | : mg_find (sv, type)) |
|
|
424 | |
393 | #define CORO_MAGIC(sv, type) \ |
425 | #define CORO_MAGIC(sv, type) \ |
394 | expect_true (SvMAGIC (sv)) \ |
426 | (expect_true (SvMAGIC (sv)) \ |
395 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
427 | ? CORO_MAGIC_NN (sv, type) \ |
396 | ? SvMAGIC (sv) \ |
|
|
397 | : mg_find (sv, type) \ |
|
|
398 | : 0 |
428 | : 0) |
399 | |
429 | |
400 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
430 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
401 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
431 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
402 | |
432 | |
403 | INLINE struct coro * |
433 | INLINE struct coro * |
404 | SvSTATE_ (pTHX_ SV *coro) |
434 | SvSTATE_ (pTHX_ SV *coro) |
405 | { |
435 | { |
406 | HV *stash; |
436 | HV *stash; |
… | |
… | |
424 | return (struct coro *)mg->mg_ptr; |
454 | return (struct coro *)mg->mg_ptr; |
425 | } |
455 | } |
426 | |
456 | |
427 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
457 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
428 | |
458 | |
429 | /* fastert than SvSTATE, but expects a coroutine hv */ |
459 | /* faster than SvSTATE, but expects a coroutine hv */ |
430 | INLINE struct coro * |
460 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
431 | SvSTATE_hv (SV *sv) |
|
|
432 | { |
|
|
433 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
434 | ? SvMAGIC (sv) |
|
|
435 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
436 | |
|
|
437 | return (struct coro *)mg->mg_ptr; |
|
|
438 | } |
|
|
439 | |
|
|
440 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
461 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
441 | |
462 | |
442 | /* the next two functions merely cache the padlists */ |
463 | /* the next two functions merely cache the padlists */ |
443 | static void |
464 | static void |
444 | get_padlist (pTHX_ CV *cv) |
465 | get_padlist (pTHX_ CV *cv) |
… | |
… | |
451 | else |
472 | else |
452 | { |
473 | { |
453 | #if CORO_PREFER_PERL_FUNCTIONS |
474 | #if CORO_PREFER_PERL_FUNCTIONS |
454 | /* this is probably cleaner? but also slower! */ |
475 | /* this is probably cleaner? but also slower! */ |
455 | /* in practise, it seems to be less stable */ |
476 | /* in practise, it seems to be less stable */ |
456 | CV *cp = Perl_cv_clone (cv); |
477 | CV *cp = Perl_cv_clone (aTHX_ cv); |
457 | CvPADLIST (cv) = CvPADLIST (cp); |
478 | CvPADLIST (cv) = CvPADLIST (cp); |
458 | CvPADLIST (cp) = 0; |
479 | CvPADLIST (cp) = 0; |
459 | SvREFCNT_dec (cp); |
480 | SvREFCNT_dec (cp); |
460 | #else |
481 | #else |
461 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
482 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
513 | } |
534 | } |
514 | |
535 | |
515 | PUTBACK; |
536 | PUTBACK; |
516 | } |
537 | } |
517 | |
538 | |
518 | slf_frame = c->slf_frame; |
539 | slf_frame = c->slf_frame; |
|
|
540 | CORO_THROW = c->except; |
519 | } |
541 | } |
520 | |
542 | |
521 | static void |
543 | static void |
522 | save_perl (pTHX_ Coro__State c) |
544 | save_perl (pTHX_ Coro__State c) |
523 | { |
545 | { |
|
|
546 | c->except = CORO_THROW; |
524 | c->slf_frame = slf_frame; |
547 | c->slf_frame = slf_frame; |
525 | |
548 | |
526 | { |
549 | { |
527 | dSP; |
550 | dSP; |
528 | I32 cxix = cxstack_ix; |
551 | I32 cxix = cxstack_ix; |
… | |
… | |
603 | * of perl.c:init_stacks, except that it uses less memory |
626 | * of perl.c:init_stacks, except that it uses less memory |
604 | * on the (sometimes correct) assumption that coroutines do |
627 | * on the (sometimes correct) assumption that coroutines do |
605 | * not usually need a lot of stackspace. |
628 | * not usually need a lot of stackspace. |
606 | */ |
629 | */ |
607 | #if CORO_PREFER_PERL_FUNCTIONS |
630 | #if CORO_PREFER_PERL_FUNCTIONS |
608 | # define coro_init_stacks init_stacks |
631 | # define coro_init_stacks(thx) init_stacks () |
609 | #else |
632 | #else |
610 | static void |
633 | static void |
611 | coro_init_stacks (pTHX) |
634 | coro_init_stacks (pTHX) |
612 | { |
635 | { |
613 | PL_curstackinfo = new_stackinfo(32, 8); |
636 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
676 | #if !PERL_VERSION_ATLEAST (5,10,0) |
699 | #if !PERL_VERSION_ATLEAST (5,10,0) |
677 | Safefree (PL_retstack); |
700 | Safefree (PL_retstack); |
678 | #endif |
701 | #endif |
679 | } |
702 | } |
680 | |
703 | |
|
|
704 | #define CORO_RSS \ |
|
|
705 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
706 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
707 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
708 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
709 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
710 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
711 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
712 | |
681 | static size_t |
713 | static size_t |
682 | coro_rss (pTHX_ struct coro *coro) |
714 | coro_rss (pTHX_ struct coro *coro) |
683 | { |
715 | { |
684 | size_t rss = sizeof (*coro); |
716 | size_t rss = sizeof (*coro); |
685 | |
717 | |
686 | if (coro->mainstack) |
718 | if (coro->mainstack) |
687 | { |
719 | { |
688 | perl_slots tmp_slot; |
|
|
689 | perl_slots *slot; |
|
|
690 | |
|
|
691 | if (coro->flags & CF_RUNNING) |
720 | if (coro->flags & CF_RUNNING) |
692 | { |
721 | { |
693 | slot = &tmp_slot; |
722 | #define SYM(sym) PL_ ## sym |
694 | |
723 | CORO_RSS; |
695 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
696 | # include "state.h" |
|
|
697 | #undef VAR |
724 | #undef SYM |
698 | } |
725 | } |
699 | else |
726 | else |
700 | slot = coro->slot; |
|
|
701 | |
|
|
702 | if (slot) |
|
|
703 | { |
727 | { |
704 | rss += sizeof (slot->curstackinfo); |
728 | #define SYM(sym) coro->slot->sym |
705 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
729 | CORO_RSS; |
706 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
730 | #undef SYM |
707 | rss += slot->tmps_max * sizeof (SV *); |
|
|
708 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
709 | rss += slot->scopestack_max * sizeof (I32); |
|
|
710 | rss += slot->savestack_max * sizeof (ANY); |
|
|
711 | |
|
|
712 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
713 | rss += slot->retstack_max * sizeof (OP *); |
|
|
714 | #endif |
|
|
715 | } |
731 | } |
716 | } |
732 | } |
717 | |
733 | |
718 | return rss; |
734 | return rss; |
719 | } |
735 | } |
… | |
… | |
821 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
837 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
822 | { |
838 | { |
823 | return 0; |
839 | return 0; |
824 | } |
840 | } |
825 | |
841 | |
826 | static void |
842 | static int |
|
|
843 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
844 | { |
|
|
845 | return 1; |
|
|
846 | } |
|
|
847 | |
|
|
848 | static UNOP coro_setup_op; |
|
|
849 | |
|
|
850 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
827 | coro_setup (pTHX_ struct coro *coro) |
851 | coro_setup (pTHX_ struct coro *coro) |
828 | { |
852 | { |
829 | /* |
853 | /* |
830 | * emulate part of the perl startup here. |
854 | * emulate part of the perl startup here. |
831 | */ |
855 | */ |
… | |
… | |
858 | { |
882 | { |
859 | dSP; |
883 | dSP; |
860 | UNOP myop; |
884 | UNOP myop; |
861 | |
885 | |
862 | Zero (&myop, 1, UNOP); |
886 | Zero (&myop, 1, UNOP); |
863 | myop.op_next = Nullop; |
887 | myop.op_next = Nullop; |
|
|
888 | myop.op_type = OP_ENTERSUB; |
864 | myop.op_flags = OPf_WANT_VOID; |
889 | myop.op_flags = OPf_WANT_VOID; |
865 | |
890 | |
866 | PUSHMARK (SP); |
891 | PUSHMARK (SP); |
867 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
892 | PUSHs ((SV *)coro->startcv); |
868 | PUTBACK; |
893 | PUTBACK; |
869 | PL_op = (OP *)&myop; |
894 | PL_op = (OP *)&myop; |
870 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
895 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
871 | SPAGAIN; |
|
|
872 | } |
896 | } |
873 | |
897 | |
874 | /* this newly created coroutine might be run on an existing cctx which most |
898 | /* this newly created coroutine might be run on an existing cctx which most |
875 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
899 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
876 | */ |
900 | */ |
877 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
901 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
878 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
902 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
903 | |
|
|
904 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
905 | coro_setup_op.op_next = PL_op; |
|
|
906 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
907 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
908 | /* no flags etc. required, as an init function won't be called */ |
|
|
909 | |
|
|
910 | PL_op = (OP *)&coro_setup_op; |
|
|
911 | |
|
|
912 | /* copy throw, in case it was set before coro_setup */ |
|
|
913 | CORO_THROW = coro->except; |
879 | } |
914 | } |
880 | |
915 | |
881 | static void |
916 | static void |
882 | coro_destruct (pTHX_ struct coro *coro) |
917 | coro_destruct (pTHX_ struct coro *coro) |
883 | { |
918 | { |
… | |
… | |
907 | |
942 | |
908 | SvREFCNT_dec (PL_diehook); |
943 | SvREFCNT_dec (PL_diehook); |
909 | SvREFCNT_dec (PL_warnhook); |
944 | SvREFCNT_dec (PL_warnhook); |
910 | |
945 | |
911 | SvREFCNT_dec (coro->saved_deffh); |
946 | SvREFCNT_dec (coro->saved_deffh); |
912 | SvREFCNT_dec (coro->throw); |
947 | SvREFCNT_dec (coro->rouse_cb); |
|
|
948 | SvREFCNT_dec (coro->invoke_cb); |
|
|
949 | SvREFCNT_dec (coro->invoke_av); |
913 | |
950 | |
914 | coro_destruct_stacks (aTHX); |
951 | coro_destruct_stacks (aTHX); |
915 | } |
952 | } |
916 | |
953 | |
917 | INLINE void |
954 | INLINE void |
… | |
… | |
1004 | SAVETMPS; |
1041 | SAVETMPS; |
1005 | EXTEND (SP, 3); |
1042 | EXTEND (SP, 3); |
1006 | PUSHMARK (SP); |
1043 | PUSHMARK (SP); |
1007 | PUSHs (&PL_sv_yes); |
1044 | PUSHs (&PL_sv_yes); |
1008 | PUSHs (fullname); |
1045 | PUSHs (fullname); |
1009 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1046 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1010 | PUTBACK; |
1047 | PUTBACK; |
1011 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1048 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1012 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1049 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1013 | SPAGAIN; |
1050 | SPAGAIN; |
1014 | FREETMPS; |
1051 | FREETMPS; |
… | |
… | |
1046 | |
1083 | |
1047 | TAINT_NOT; |
1084 | TAINT_NOT; |
1048 | return 0; |
1085 | return 0; |
1049 | } |
1086 | } |
1050 | |
1087 | |
|
|
1088 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1089 | static struct CoroSLF cctx_ssl_frame; |
|
|
1090 | |
1051 | static void |
1091 | static void |
1052 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1092 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1053 | { |
1093 | { |
1054 | ta->prev = (struct coro *)cctx; |
1094 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1055 | ta->next = 0; |
1095 | ta->next = 0; |
1056 | } |
1096 | } |
1057 | |
1097 | |
1058 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1098 | static int |
1059 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1099 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1060 | /* during execution of a perl program */ |
1100 | { |
1061 | /* also initialises PL_top_env */ |
1101 | *frame = cctx_ssl_frame; |
|
|
1102 | |
|
|
1103 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1104 | } |
|
|
1105 | |
|
|
1106 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1062 | static void NOINLINE |
1107 | static void NOINLINE |
1063 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1108 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1064 | { |
1109 | { |
1065 | dSP; |
|
|
1066 | UNOP myop; |
|
|
1067 | |
|
|
1068 | PL_top_env = &PL_start_env; |
1110 | PL_top_env = &PL_start_env; |
1069 | |
1111 | |
1070 | if (cctx->flags & CC_TRACE) |
1112 | if (cctx->flags & CC_TRACE) |
1071 | PL_runops = runops_trace; |
1113 | PL_runops = runops_trace; |
1072 | |
1114 | |
1073 | Zero (&myop, 1, UNOP); |
1115 | /* we already must be executing an SLF op, there is no other valid way |
1074 | myop.op_next = PL_op; |
1116 | * that can lead to creation of a new cctx */ |
1075 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1117 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1118 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1076 | |
1119 | |
1077 | PUSHMARK (SP); |
1120 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1078 | EXTEND (SP, 2); |
1121 | cctx_ssl_cctx = cctx; |
1079 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1122 | cctx_ssl_frame = slf_frame; |
1080 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1123 | |
1081 | PUTBACK; |
1124 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1082 | PL_op = (OP *)&myop; |
1125 | slf_frame.check = slf_check_set_stacklevel; |
1083 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1084 | SPAGAIN; |
|
|
1085 | } |
1126 | } |
1086 | |
1127 | |
1087 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1128 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1088 | INLINE void |
1129 | INLINE void |
1089 | transfer_tail (pTHX) |
1130 | transfer_tail (pTHX) |
… | |
… | |
1116 | transfer_tail (aTHX); |
1157 | transfer_tail (aTHX); |
1117 | |
1158 | |
1118 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1159 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1119 | PL_restartop = PL_op; |
1160 | PL_restartop = PL_op; |
1120 | perl_run (PL_curinterp); |
1161 | perl_run (PL_curinterp); |
|
|
1162 | /* |
|
|
1163 | * Unfortunately, there is no way to get at the return values of the |
|
|
1164 | * coro body here, as perl_run destroys these |
|
|
1165 | */ |
1121 | |
1166 | |
1122 | /* |
1167 | /* |
1123 | * If perl-run returns we assume exit() was being called or the coro |
1168 | * If perl-run returns we assume exit() was being called or the coro |
1124 | * fell off the end, which seems to be the only valid (non-bug) |
1169 | * fell off the end, which seems to be the only valid (non-bug) |
1125 | * reason for perl_run to return. We try to exit by jumping to the |
1170 | * reason for perl_run to return. We try to exit by jumping to the |
… | |
… | |
1276 | /** coroutine switching *****************************************************/ |
1321 | /** coroutine switching *****************************************************/ |
1277 | |
1322 | |
1278 | static void |
1323 | static void |
1279 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1324 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1280 | { |
1325 | { |
|
|
1326 | /* TODO: throwing up here is considered harmful */ |
|
|
1327 | |
1281 | if (expect_true (prev != next)) |
1328 | if (expect_true (prev != next)) |
1282 | { |
1329 | { |
1283 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1330 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1284 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1331 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1285 | |
1332 | |
… | |
… | |
1295 | #endif |
1342 | #endif |
1296 | } |
1343 | } |
1297 | } |
1344 | } |
1298 | |
1345 | |
1299 | /* always use the TRANSFER macro */ |
1346 | /* always use the TRANSFER macro */ |
1300 | static void NOINLINE |
1347 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1301 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1348 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1302 | { |
1349 | { |
1303 | dSTACKLEVEL; |
1350 | dSTACKLEVEL; |
1304 | |
1351 | |
1305 | /* sometimes transfer is only called to set idle_sp */ |
1352 | /* sometimes transfer is only called to set idle_sp */ |
1306 | if (expect_false (!next)) |
1353 | if (expect_false (!next)) |
1307 | { |
1354 | { |
1308 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1355 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1309 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1356 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1310 | } |
1357 | } |
1311 | else if (expect_true (prev != next)) |
1358 | else if (expect_true (prev != next)) |
1312 | { |
1359 | { |
1313 | coro_cctx *prev__cctx; |
1360 | coro_cctx *prev__cctx; |
… | |
… | |
1338 | |
1385 | |
1339 | prev__cctx = prev->cctx; |
1386 | prev__cctx = prev->cctx; |
1340 | |
1387 | |
1341 | /* possibly untie and reuse the cctx */ |
1388 | /* possibly untie and reuse the cctx */ |
1342 | if (expect_true ( |
1389 | if (expect_true ( |
1343 | prev__cctx->idle_sp == (void *)stacklevel |
1390 | prev__cctx->idle_sp == STACKLEVEL |
1344 | && !(prev__cctx->flags & CC_TRACE) |
1391 | && !(prev__cctx->flags & CC_TRACE) |
1345 | && !force_cctx |
1392 | && !force_cctx |
1346 | )) |
1393 | )) |
1347 | { |
1394 | { |
1348 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1395 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
… | |
… | |
1415 | |
1462 | |
1416 | coro->slot = 0; |
1463 | coro->slot = 0; |
1417 | } |
1464 | } |
1418 | |
1465 | |
1419 | cctx_destroy (coro->cctx); |
1466 | cctx_destroy (coro->cctx); |
|
|
1467 | SvREFCNT_dec (coro->startcv); |
1420 | SvREFCNT_dec (coro->args); |
1468 | SvREFCNT_dec (coro->args); |
|
|
1469 | SvREFCNT_dec (CORO_THROW); |
1421 | |
1470 | |
1422 | if (coro->next) coro->next->prev = coro->prev; |
1471 | if (coro->next) coro->next->prev = coro->prev; |
1423 | if (coro->prev) coro->prev->next = coro->next; |
1472 | if (coro->prev) coro->prev->next = coro->next; |
1424 | if (coro == coro_first) coro_first = coro->next; |
1473 | if (coro == coro_first) coro_first = coro->next; |
1425 | |
1474 | |
… | |
… | |
1479 | |
1528 | |
1480 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1529 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1481 | TRANSFER (ta, 1); |
1530 | TRANSFER (ta, 1); |
1482 | } |
1531 | } |
1483 | |
1532 | |
|
|
1533 | /*****************************************************************************/ |
|
|
1534 | /* gensub: simple closure generation utility */ |
|
|
1535 | |
|
|
1536 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1537 | |
|
|
1538 | /* create a closure from XS, returns a code reference */ |
|
|
1539 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1540 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1541 | static SV * |
|
|
1542 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1543 | { |
|
|
1544 | CV *cv = (CV *)newSV (0); |
|
|
1545 | |
|
|
1546 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1547 | |
|
|
1548 | CvANON_on (cv); |
|
|
1549 | CvISXSUB_on (cv); |
|
|
1550 | CvXSUB (cv) = xsub; |
|
|
1551 | GENSUB_ARG = arg; |
|
|
1552 | |
|
|
1553 | return newRV_noinc ((SV *)cv); |
|
|
1554 | } |
|
|
1555 | |
1484 | /** Coro ********************************************************************/ |
1556 | /** Coro ********************************************************************/ |
1485 | |
1557 | |
1486 | INLINE void |
1558 | INLINE void |
1487 | coro_enq (pTHX_ struct coro *coro) |
1559 | coro_enq (pTHX_ struct coro *coro) |
1488 | { |
1560 | { |
… | |
… | |
1531 | ENTER; |
1603 | ENTER; |
1532 | SAVETMPS; |
1604 | SAVETMPS; |
1533 | |
1605 | |
1534 | PUSHMARK (SP); |
1606 | PUSHMARK (SP); |
1535 | PUTBACK; |
1607 | PUTBACK; |
1536 | call_sv (sv_hook, G_DISCARD); |
1608 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1537 | SPAGAIN; |
|
|
1538 | |
1609 | |
1539 | FREETMPS; |
1610 | FREETMPS; |
1540 | LEAVE; |
1611 | LEAVE; |
1541 | } |
1612 | } |
1542 | |
1613 | |
… | |
… | |
1550 | api_is_ready (pTHX_ SV *coro_sv) |
1621 | api_is_ready (pTHX_ SV *coro_sv) |
1551 | { |
1622 | { |
1552 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1623 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1553 | } |
1624 | } |
1554 | |
1625 | |
|
|
1626 | /* expects to own a reference to next->hv */ |
1555 | INLINE void |
1627 | INLINE void |
|
|
1628 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1629 | { |
|
|
1630 | SV *prev_sv = SvRV (coro_current); |
|
|
1631 | |
|
|
1632 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1633 | ta->next = next; |
|
|
1634 | |
|
|
1635 | TRANSFER_CHECK (*ta); |
|
|
1636 | |
|
|
1637 | SvRV_set (coro_current, (SV *)next->hv); |
|
|
1638 | |
|
|
1639 | free_coro_mortal (aTHX); |
|
|
1640 | coro_mortal = prev_sv; |
|
|
1641 | } |
|
|
1642 | |
|
|
1643 | static void |
1556 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1644 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1557 | { |
1645 | { |
1558 | SV *prev_sv, *next_sv; |
|
|
1559 | |
|
|
1560 | for (;;) |
1646 | for (;;) |
1561 | { |
1647 | { |
1562 | next_sv = coro_deq (aTHX); |
1648 | SV *next_sv = coro_deq (aTHX); |
1563 | |
1649 | |
1564 | /* nothing to schedule: call the idle handler */ |
|
|
1565 | if (expect_false (!next_sv)) |
1650 | if (expect_true (next_sv)) |
1566 | { |
1651 | { |
|
|
1652 | struct coro *next = SvSTATE_hv (next_sv); |
|
|
1653 | |
|
|
1654 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1655 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1656 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
|
|
1657 | else |
|
|
1658 | { |
|
|
1659 | next->flags &= ~CF_READY; |
|
|
1660 | --coro_nready; |
|
|
1661 | |
|
|
1662 | return prepare_schedule_to (aTHX_ ta, next); |
|
|
1663 | } |
|
|
1664 | } |
|
|
1665 | else |
|
|
1666 | { |
|
|
1667 | /* nothing to schedule: call the idle handler */ |
1567 | dSP; |
1668 | dSP; |
1568 | |
1669 | |
1569 | ENTER; |
1670 | ENTER; |
1570 | SAVETMPS; |
1671 | SAVETMPS; |
1571 | |
1672 | |
1572 | PUSHMARK (SP); |
1673 | PUSHMARK (SP); |
1573 | PUTBACK; |
1674 | PUTBACK; |
1574 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1675 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1575 | SPAGAIN; |
|
|
1576 | |
1676 | |
1577 | FREETMPS; |
1677 | FREETMPS; |
1578 | LEAVE; |
1678 | LEAVE; |
1579 | continue; |
|
|
1580 | } |
1679 | } |
1581 | |
|
|
1582 | ta->next = SvSTATE_hv (next_sv); |
|
|
1583 | |
|
|
1584 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1585 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1586 | { |
|
|
1587 | SvREFCNT_dec (next_sv); |
|
|
1588 | /* coro_nready has already been taken care of by destroy */ |
|
|
1589 | continue; |
|
|
1590 | } |
|
|
1591 | |
|
|
1592 | --coro_nready; |
|
|
1593 | break; |
|
|
1594 | } |
1680 | } |
1595 | |
|
|
1596 | /* free this only after the transfer */ |
|
|
1597 | prev_sv = SvRV (coro_current); |
|
|
1598 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1599 | TRANSFER_CHECK (*ta); |
|
|
1600 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
|
|
1601 | ta->next->flags &= ~CF_READY; |
|
|
1602 | SvRV_set (coro_current, next_sv); |
|
|
1603 | |
|
|
1604 | free_coro_mortal (aTHX); |
|
|
1605 | coro_mortal = prev_sv; |
|
|
1606 | } |
1681 | } |
1607 | |
1682 | |
1608 | INLINE void |
1683 | INLINE void |
1609 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1684 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1610 | { |
1685 | { |
… | |
… | |
1631 | { |
1706 | { |
1632 | struct coro_transfer_args ta; |
1707 | struct coro_transfer_args ta; |
1633 | |
1708 | |
1634 | prepare_schedule (aTHX_ &ta); |
1709 | prepare_schedule (aTHX_ &ta); |
1635 | TRANSFER (ta, 1); |
1710 | TRANSFER (ta, 1); |
|
|
1711 | } |
|
|
1712 | |
|
|
1713 | static void |
|
|
1714 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1715 | { |
|
|
1716 | struct coro_transfer_args ta; |
|
|
1717 | struct coro *next = SvSTATE (coro_sv); |
|
|
1718 | |
|
|
1719 | SvREFCNT_inc_NN (coro_sv); |
|
|
1720 | prepare_schedule_to (aTHX_ &ta, next); |
1636 | } |
1721 | } |
1637 | |
1722 | |
1638 | static int |
1723 | static int |
1639 | api_cede (pTHX) |
1724 | api_cede (pTHX) |
1640 | { |
1725 | { |
… | |
… | |
1687 | if (coro->flags & CF_RUNNING) |
1772 | if (coro->flags & CF_RUNNING) |
1688 | PL_runops = RUNOPS_DEFAULT; |
1773 | PL_runops = RUNOPS_DEFAULT; |
1689 | else |
1774 | else |
1690 | coro->slot->runops = RUNOPS_DEFAULT; |
1775 | coro->slot->runops = RUNOPS_DEFAULT; |
1691 | } |
1776 | } |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | static void |
|
|
1780 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1781 | { |
|
|
1782 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1783 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1784 | |
|
|
1785 | if (on_destroyp) |
|
|
1786 | { |
|
|
1787 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1788 | |
|
|
1789 | while (AvFILLp (on_destroy) >= 0) |
|
|
1790 | { |
|
|
1791 | dSP; /* don't disturb outer sp */ |
|
|
1792 | SV *cb = av_pop (on_destroy); |
|
|
1793 | |
|
|
1794 | PUSHMARK (SP); |
|
|
1795 | |
|
|
1796 | if (statusp) |
|
|
1797 | { |
|
|
1798 | int i; |
|
|
1799 | AV *status = (AV *)SvRV (*statusp); |
|
|
1800 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1801 | |
|
|
1802 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1803 | PUSHs (AvARRAY (status)[i]); |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | PUTBACK; |
|
|
1807 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1808 | } |
|
|
1809 | } |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | static void |
|
|
1813 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1814 | { |
|
|
1815 | int i; |
|
|
1816 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1817 | AV *av = newAV (); |
|
|
1818 | |
|
|
1819 | av_extend (av, items - 1); |
|
|
1820 | for (i = 0; i < items; ++i) |
|
|
1821 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1822 | |
|
|
1823 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1824 | |
|
|
1825 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1826 | api_ready (aTHX_ sv_manager); |
|
|
1827 | |
|
|
1828 | frame->prepare = prepare_schedule; |
|
|
1829 | frame->check = slf_check_repeat; |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | /*****************************************************************************/ |
|
|
1833 | /* async pool handler */ |
|
|
1834 | |
|
|
1835 | static int |
|
|
1836 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
1837 | { |
|
|
1838 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1839 | struct coro *coro = (struct coro *)frame->data; |
|
|
1840 | |
|
|
1841 | if (!coro->invoke_cb) |
|
|
1842 | return 1; /* loop till we have invoke */ |
|
|
1843 | else |
|
|
1844 | { |
|
|
1845 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1846 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1847 | |
|
|
1848 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1849 | |
|
|
1850 | { |
|
|
1851 | dSP; |
|
|
1852 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1853 | PUTBACK; |
|
|
1854 | } |
|
|
1855 | |
|
|
1856 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1857 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1858 | coro->invoke_av = 0; |
|
|
1859 | |
|
|
1860 | return 0; |
|
|
1861 | } |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | static void |
|
|
1865 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1866 | { |
|
|
1867 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1868 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1869 | |
|
|
1870 | if (expect_true (coro->saved_deffh)) |
|
|
1871 | { |
|
|
1872 | /* subsequent iteration */ |
|
|
1873 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1874 | coro->saved_deffh = 0; |
|
|
1875 | |
|
|
1876 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1877 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1878 | { |
|
|
1879 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1880 | coro->invoke_av = newAV (); |
|
|
1881 | |
|
|
1882 | frame->prepare = prepare_nop; |
|
|
1883 | } |
|
|
1884 | else |
|
|
1885 | { |
|
|
1886 | av_clear (GvAV (PL_defgv)); |
|
|
1887 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1888 | |
|
|
1889 | coro->prio = 0; |
|
|
1890 | |
|
|
1891 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1892 | api_trace (aTHX_ coro_current, 0); |
|
|
1893 | |
|
|
1894 | frame->prepare = prepare_schedule; |
|
|
1895 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1896 | } |
|
|
1897 | } |
|
|
1898 | else |
|
|
1899 | { |
|
|
1900 | /* first iteration, simply fall through */ |
|
|
1901 | frame->prepare = prepare_nop; |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | frame->check = slf_check_pool_handler; |
|
|
1905 | frame->data = (void *)coro; |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | /*****************************************************************************/ |
|
|
1909 | /* rouse callback */ |
|
|
1910 | |
|
|
1911 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1912 | |
|
|
1913 | static void |
|
|
1914 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1915 | { |
|
|
1916 | dXSARGS; |
|
|
1917 | SV *data = (SV *)GENSUB_ARG; |
|
|
1918 | |
|
|
1919 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1920 | { |
|
|
1921 | /* first call, set args */ |
|
|
1922 | AV *av = newAV (); |
|
|
1923 | SV *coro = SvRV (data); |
|
|
1924 | |
|
|
1925 | SvRV_set (data, (SV *)av); |
|
|
1926 | api_ready (aTHX_ coro); |
|
|
1927 | SvREFCNT_dec (coro); |
|
|
1928 | |
|
|
1929 | /* better take a full copy of the arguments */ |
|
|
1930 | while (items--) |
|
|
1931 | av_store (av, items, newSVsv (ST (items))); |
|
|
1932 | } |
|
|
1933 | |
|
|
1934 | XSRETURN_EMPTY; |
|
|
1935 | } |
|
|
1936 | |
|
|
1937 | static int |
|
|
1938 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1939 | { |
|
|
1940 | SV *data = (SV *)frame->data; |
|
|
1941 | |
|
|
1942 | if (CORO_THROW) |
|
|
1943 | return 0; |
|
|
1944 | |
|
|
1945 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1946 | return 1; |
|
|
1947 | |
|
|
1948 | /* now push all results on the stack */ |
|
|
1949 | { |
|
|
1950 | dSP; |
|
|
1951 | AV *av = (AV *)SvRV (data); |
|
|
1952 | int i; |
|
|
1953 | |
|
|
1954 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1955 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1956 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1957 | |
|
|
1958 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1959 | AvFILLp (av) = -1; |
|
|
1960 | av_undef (av); |
|
|
1961 | |
|
|
1962 | PUTBACK; |
|
|
1963 | } |
|
|
1964 | |
|
|
1965 | return 0; |
|
|
1966 | } |
|
|
1967 | |
|
|
1968 | static void |
|
|
1969 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1970 | { |
|
|
1971 | SV *cb; |
|
|
1972 | |
|
|
1973 | if (items) |
|
|
1974 | cb = arg [0]; |
|
|
1975 | else |
|
|
1976 | { |
|
|
1977 | struct coro *coro = SvSTATE_current; |
|
|
1978 | |
|
|
1979 | if (!coro->rouse_cb) |
|
|
1980 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1981 | |
|
|
1982 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1983 | coro->rouse_cb = 0; |
|
|
1984 | } |
|
|
1985 | |
|
|
1986 | if (!SvROK (cb) |
|
|
1987 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1988 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1989 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1990 | |
|
|
1991 | { |
|
|
1992 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1993 | SV *data = (SV *)GENSUB_ARG; |
|
|
1994 | |
|
|
1995 | frame->data = (void *)data; |
|
|
1996 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1997 | frame->check = slf_check_rouse_wait; |
|
|
1998 | } |
|
|
1999 | } |
|
|
2000 | |
|
|
2001 | static SV * |
|
|
2002 | coro_new_rouse_cb (pTHX) |
|
|
2003 | { |
|
|
2004 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2005 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2006 | SV *data = newRV_inc ((SV *)hv); |
|
|
2007 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2008 | |
|
|
2009 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2010 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2011 | |
|
|
2012 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2013 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2014 | |
|
|
2015 | return cb; |
|
|
2016 | } |
|
|
2017 | |
|
|
2018 | /*****************************************************************************/ |
|
|
2019 | /* schedule-like-function opcode (SLF) */ |
|
|
2020 | |
|
|
2021 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2022 | static const CV *slf_cv; |
|
|
2023 | static SV **slf_argv; |
|
|
2024 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2025 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2026 | |
|
|
2027 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2028 | /* recreate the stack frame as perl will on following calls */ |
|
|
2029 | /* since entersub cleared the stack */ |
|
|
2030 | static OP * |
|
|
2031 | pp_restore (pTHX) |
|
|
2032 | { |
|
|
2033 | int i; |
|
|
2034 | SV **SP = PL_stack_base + slf_ax; |
|
|
2035 | |
|
|
2036 | PUSHMARK (SP); |
|
|
2037 | |
|
|
2038 | EXTEND (SP, slf_argc + 1); |
|
|
2039 | |
|
|
2040 | for (i = 0; i < slf_argc; ++i) |
|
|
2041 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2042 | |
|
|
2043 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2044 | |
|
|
2045 | RETURNOP (slf_restore.op_first); |
|
|
2046 | } |
|
|
2047 | |
|
|
2048 | static void |
|
|
2049 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2050 | { |
|
|
2051 | SV **arg = (SV **)slf_frame.data; |
|
|
2052 | |
|
|
2053 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2054 | } |
|
|
2055 | |
|
|
2056 | static void |
|
|
2057 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2058 | { |
|
|
2059 | if (items != 2) |
|
|
2060 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2061 | |
|
|
2062 | frame->prepare = slf_prepare_transfer; |
|
|
2063 | frame->check = slf_check_nop; |
|
|
2064 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | static void |
|
|
2068 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2069 | { |
|
|
2070 | frame->prepare = prepare_schedule; |
|
|
2071 | frame->check = slf_check_nop; |
|
|
2072 | } |
|
|
2073 | |
|
|
2074 | static void |
|
|
2075 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2076 | { |
|
|
2077 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2078 | |
|
|
2079 | SvREFCNT_inc_NN (next->hv); |
|
|
2080 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2081 | } |
|
|
2082 | |
|
|
2083 | static void |
|
|
2084 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2085 | { |
|
|
2086 | if (!items) |
|
|
2087 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2088 | |
|
|
2089 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2090 | frame->prepare = slf_prepare_schedule_to; |
|
|
2091 | frame->check = slf_check_nop; |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | static void |
|
|
2095 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2096 | { |
|
|
2097 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2098 | |
|
|
2099 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2100 | } |
|
|
2101 | |
|
|
2102 | static void |
|
|
2103 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2104 | { |
|
|
2105 | frame->prepare = prepare_cede; |
|
|
2106 | frame->check = slf_check_nop; |
|
|
2107 | } |
|
|
2108 | |
|
|
2109 | static void |
|
|
2110 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2111 | { |
|
|
2112 | frame->prepare = prepare_cede_notself; |
|
|
2113 | frame->check = slf_check_nop; |
|
|
2114 | } |
|
|
2115 | |
|
|
2116 | /* |
|
|
2117 | * these not obviously related functions are all rolled into one |
|
|
2118 | * function to increase chances that they all will call transfer with the same |
|
|
2119 | * stack offset |
|
|
2120 | * SLF stands for "schedule-like-function". |
|
|
2121 | */ |
|
|
2122 | static OP * |
|
|
2123 | pp_slf (pTHX) |
|
|
2124 | { |
|
|
2125 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2126 | |
|
|
2127 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2128 | /* the latter happens when a new coro has been started */ |
|
|
2129 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2130 | if (expect_true (!slf_frame.prepare)) |
|
|
2131 | { |
|
|
2132 | /* first iteration */ |
|
|
2133 | dSP; |
|
|
2134 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2135 | int items = SP - arg; /* args without function object */ |
|
|
2136 | SV *gv = *sp; |
|
|
2137 | |
|
|
2138 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2139 | /* for us, divert to the real entersub */ |
|
|
2140 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2141 | || !GvCV (gv) |
|
|
2142 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2143 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2144 | |
|
|
2145 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2146 | { |
|
|
2147 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2148 | AV *av = GvAV (PL_defgv); |
|
|
2149 | arg = AvARRAY (av); |
|
|
2150 | items = AvFILLp (av) + 1; |
|
|
2151 | } |
|
|
2152 | |
|
|
2153 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2154 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2155 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2156 | |
|
|
2157 | /* pop args */ |
|
|
2158 | SP = PL_stack_base + POPMARK; |
|
|
2159 | |
|
|
2160 | PUTBACK; |
|
|
2161 | } |
|
|
2162 | |
|
|
2163 | /* now that we have a slf_frame, interpret it! */ |
|
|
2164 | /* we use a callback system not to make the code needlessly */ |
|
|
2165 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2166 | |
|
|
2167 | do |
|
|
2168 | { |
|
|
2169 | struct coro_transfer_args ta; |
|
|
2170 | |
|
|
2171 | slf_frame.prepare (aTHX_ &ta); |
|
|
2172 | TRANSFER (ta, 0); |
|
|
2173 | |
|
|
2174 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2175 | } |
|
|
2176 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2177 | |
|
|
2178 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2179 | |
|
|
2180 | /* exception handling */ |
|
|
2181 | if (expect_false (CORO_THROW)) |
|
|
2182 | { |
|
|
2183 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2184 | |
|
|
2185 | CORO_THROW = 0; |
|
|
2186 | sv_setsv (ERRSV, exception); |
|
|
2187 | croak (0); |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | /* return value handling - mostly like entersub */ |
|
|
2191 | /* make sure we put something on the stack in scalar context */ |
|
|
2192 | if (GIMME_V == G_SCALAR) |
|
|
2193 | { |
|
|
2194 | dSP; |
|
|
2195 | SV **bot = PL_stack_base + checkmark; |
|
|
2196 | |
|
|
2197 | if (sp == bot) /* too few, push undef */ |
|
|
2198 | bot [1] = &PL_sv_undef; |
|
|
2199 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2200 | bot [1] = *sp; |
|
|
2201 | |
|
|
2202 | SP = bot + 1; |
|
|
2203 | |
|
|
2204 | PUTBACK; |
|
|
2205 | } |
|
|
2206 | |
|
|
2207 | return NORMAL; |
|
|
2208 | } |
|
|
2209 | |
|
|
2210 | static void |
|
|
2211 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2212 | { |
|
|
2213 | int i; |
|
|
2214 | SV **arg = PL_stack_base + ax; |
|
|
2215 | int items = PL_stack_sp - arg + 1; |
|
|
2216 | |
|
|
2217 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2218 | |
|
|
2219 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2220 | && PL_op->op_ppaddr != pp_slf) |
|
|
2221 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2222 | |
|
|
2223 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2224 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2225 | slf_cv = cv; |
|
|
2226 | |
|
|
2227 | /* we patch the op, and then re-run the whole call */ |
|
|
2228 | /* we have to put the same argument on the stack for this to work */ |
|
|
2229 | /* and this will be done by pp_restore */ |
|
|
2230 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2231 | slf_restore.op_type = OP_CUSTOM; |
|
|
2232 | slf_restore.op_ppaddr = pp_restore; |
|
|
2233 | slf_restore.op_first = PL_op; |
|
|
2234 | |
|
|
2235 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2236 | |
|
|
2237 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2238 | { |
|
|
2239 | if (items > slf_arga) |
|
|
2240 | { |
|
|
2241 | slf_arga = items; |
|
|
2242 | free (slf_argv); |
|
|
2243 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2244 | } |
|
|
2245 | |
|
|
2246 | slf_argc = items; |
|
|
2247 | |
|
|
2248 | for (i = 0; i < items; ++i) |
|
|
2249 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2250 | } |
|
|
2251 | else |
|
|
2252 | slf_argc = 0; |
|
|
2253 | |
|
|
2254 | PL_op->op_ppaddr = pp_slf; |
|
|
2255 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2256 | |
|
|
2257 | PL_op = (OP *)&slf_restore; |
1692 | } |
2258 | } |
1693 | |
2259 | |
1694 | /*****************************************************************************/ |
2260 | /*****************************************************************************/ |
1695 | /* PerlIO::cede */ |
2261 | /* PerlIO::cede */ |
1696 | |
2262 | |
… | |
… | |
1765 | PerlIOBuf_get_cnt, |
2331 | PerlIOBuf_get_cnt, |
1766 | PerlIOBuf_set_ptrcnt, |
2332 | PerlIOBuf_set_ptrcnt, |
1767 | }; |
2333 | }; |
1768 | |
2334 | |
1769 | /*****************************************************************************/ |
2335 | /*****************************************************************************/ |
|
|
2336 | /* Coro::Semaphore & Coro::Signal */ |
1770 | |
2337 | |
1771 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1772 | static const CV *slf_cv; |
|
|
1773 | static SV *slf_arg0; |
|
|
1774 | static SV *slf_arg1; |
|
|
1775 | static SV *slf_arg2; |
|
|
1776 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1777 | |
|
|
1778 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1779 | /* recreate the stack frame as perl will on following calls */ |
|
|
1780 | /* since entersub cleared the stack */ |
|
|
1781 | static OP * |
2338 | static SV * |
1782 | pp_restore (pTHX) |
2339 | coro_waitarray_new (pTHX_ int count) |
1783 | { |
2340 | { |
1784 | SV **SP = PL_stack_base + slf_ax; |
2341 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2342 | AV *av = newAV (); |
|
|
2343 | SV **ary; |
1785 | |
2344 | |
1786 | PUSHMARK (SP); |
2345 | /* unfortunately, building manually saves memory */ |
|
|
2346 | Newx (ary, 2, SV *); |
|
|
2347 | AvALLOC (av) = ary; |
|
|
2348 | /*AvARRAY (av) = ary;*/ |
|
|
2349 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2350 | AvMAX (av) = 1; |
|
|
2351 | AvFILLp (av) = 0; |
|
|
2352 | ary [0] = newSViv (count); |
1787 | |
2353 | |
1788 | EXTEND (SP, 3); |
2354 | return newRV_noinc ((SV *)av); |
1789 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1790 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1791 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1792 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1793 | |
|
|
1794 | RETURNOP (slf_restore.op_first); |
|
|
1795 | } |
2355 | } |
1796 | |
2356 | |
1797 | static void |
2357 | /* semaphore */ |
1798 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1799 | { |
|
|
1800 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | static void |
|
|
1804 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1805 | { |
|
|
1806 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1807 | |
|
|
1808 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1809 | frame->check = slf_check_nop; |
|
|
1810 | frame->data = (void *)SvIV (arg [0]); |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void |
|
|
1814 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1815 | { |
|
|
1816 | SV **arg = (SV **)slf_frame.data; |
|
|
1817 | |
|
|
1818 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1819 | |
|
|
1820 | /* if the destination has ->throw set, then copy it */ |
|
|
1821 | /* into the current coro's throw slot, so it will be raised */ |
|
|
1822 | /* after the schedule */ |
|
|
1823 | if (expect_false (ta->next->throw)) |
|
|
1824 | { |
|
|
1825 | struct coro *coro = SvSTATE_current; |
|
|
1826 | SvREFCNT_dec (coro->throw); |
|
|
1827 | coro->throw = ta->next->throw; |
|
|
1828 | ta->next->throw = 0; |
|
|
1829 | } |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1903 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1904 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1905 | |
|
|
1906 | /* pop args */ |
|
|
1907 | SP = PL_stack_base + POPMARK; |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | { |
|
|
1928 | dSP; |
|
|
1929 | SV **bot = PL_stack_base + checkmark; |
|
|
1930 | int gimme = GIMME_V; |
|
|
1931 | |
|
|
1932 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1933 | |
|
|
1934 | /* make sure we put something on the stack in scalar context */ |
|
|
1935 | if (gimme == G_SCALAR) |
|
|
1936 | { |
|
|
1937 | if (sp == bot) |
|
|
1938 | XPUSHs (&PL_sv_undef); |
|
|
1939 | |
|
|
1940 | SP = bot + 1; |
|
|
1941 | } |
|
|
1942 | |
|
|
1943 | PUTBACK; |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | { |
|
|
1947 | struct coro *coro = SvSTATE_current; |
|
|
1948 | |
|
|
1949 | if (expect_false (coro->throw)) |
|
|
1950 | { |
|
|
1951 | SV *exception = sv_2mortal (coro->throw); |
|
|
1952 | |
|
|
1953 | coro->throw = 0; |
|
|
1954 | sv_setsv (ERRSV, exception); |
|
|
1955 | croak (0); |
|
|
1956 | } |
|
|
1957 | } |
|
|
1958 | |
|
|
1959 | return NORMAL; |
|
|
1960 | } |
|
|
1961 | |
|
|
1962 | static void |
|
|
1963 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1964 | { |
|
|
1965 | SV **arg = PL_stack_base + ax; |
|
|
1966 | int items = PL_stack_sp - arg + 1; |
|
|
1967 | |
|
|
1968 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1969 | |
|
|
1970 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1971 | && PL_op->op_ppaddr != pp_slf) |
|
|
1972 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1973 | |
|
|
1974 | #if 0 |
|
|
1975 | if (items > 3) |
|
|
1976 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1977 | #endif |
|
|
1978 | |
|
|
1979 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1980 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1981 | slf_cv = cv; |
|
|
1982 | |
|
|
1983 | /* we patch the op, and then re-run the whole call */ |
|
|
1984 | /* we have to put the same argument on the stack for this to work */ |
|
|
1985 | /* and this will be done by pp_restore */ |
|
|
1986 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1987 | slf_restore.op_type = OP_CUSTOM; |
|
|
1988 | slf_restore.op_ppaddr = pp_restore; |
|
|
1989 | slf_restore.op_first = PL_op; |
|
|
1990 | |
|
|
1991 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1992 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1993 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1994 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1995 | |
|
|
1996 | PL_op->op_ppaddr = pp_slf; |
|
|
1997 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1998 | |
|
|
1999 | PL_op = (OP *)&slf_restore; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | /*****************************************************************************/ |
|
|
2003 | |
2358 | |
2004 | static void |
2359 | static void |
2005 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2360 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2006 | { |
2361 | { |
2007 | SV *count_sv = AvARRAY (av)[0]; |
2362 | SV *count_sv = AvARRAY (av)[0]; |
… | |
… | |
2019 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2374 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2020 | AvARRAY (av)[1] = count_sv; |
2375 | AvARRAY (av)[1] = count_sv; |
2021 | cb = av_shift (av); |
2376 | cb = av_shift (av); |
2022 | |
2377 | |
2023 | if (SvOBJECT (cb)) |
2378 | if (SvOBJECT (cb)) |
|
|
2379 | { |
2024 | api_ready (aTHX_ cb); |
2380 | api_ready (aTHX_ cb); |
2025 | else |
2381 | --count; |
2026 | croak ("callbacks not yet supported"); |
2382 | } |
|
|
2383 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2384 | { |
|
|
2385 | dSP; |
|
|
2386 | PUSHMARK (SP); |
|
|
2387 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2388 | PUTBACK; |
|
|
2389 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2390 | } |
2027 | |
2391 | |
2028 | SvREFCNT_dec (cb); |
2392 | SvREFCNT_dec (cb); |
2029 | |
|
|
2030 | --count; |
|
|
2031 | } |
2393 | } |
2032 | } |
2394 | } |
2033 | |
2395 | |
2034 | static void |
2396 | static void |
2035 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2397 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
… | |
… | |
2037 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2399 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2038 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2400 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2039 | } |
2401 | } |
2040 | |
2402 | |
2041 | static int |
2403 | static int |
2042 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2404 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2043 | { |
2405 | { |
2044 | AV *av = (AV *)frame->data; |
2406 | AV *av = (AV *)frame->data; |
2045 | SV *count_sv = AvARRAY (av)[0]; |
2407 | SV *count_sv = AvARRAY (av)[0]; |
2046 | |
2408 | |
|
|
2409 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2410 | if (CORO_THROW) |
|
|
2411 | return 0; |
2047 | if (SvIVX (count_sv) > 0) |
2412 | else if (SvIVX (count_sv) > 0) |
2048 | { |
2413 | { |
2049 | SvSTATE_current->on_destroy = 0; |
2414 | SvSTATE_current->on_destroy = 0; |
|
|
2415 | |
|
|
2416 | if (acquire) |
2050 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2417 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2418 | else |
|
|
2419 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2420 | |
2051 | return 0; |
2421 | return 0; |
2052 | } |
2422 | } |
2053 | else |
2423 | else |
2054 | { |
2424 | { |
2055 | int i; |
2425 | int i; |
… | |
… | |
2064 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2434 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2065 | return 1; |
2435 | return 1; |
2066 | } |
2436 | } |
2067 | } |
2437 | } |
2068 | |
2438 | |
2069 | static void |
2439 | static int |
|
|
2440 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2441 | { |
|
|
2442 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | static int |
|
|
2446 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2447 | { |
|
|
2448 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | static void |
2070 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2452 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2071 | { |
2453 | { |
2072 | AV *av = (AV *)SvRV (arg [0]); |
2454 | AV *av = (AV *)SvRV (arg [0]); |
2073 | |
2455 | |
2074 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2456 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2075 | { |
2457 | { |
2076 | frame->data = (void *)av; |
2458 | frame->data = (void *)av; |
2077 | frame->prepare = prepare_nop; |
2459 | frame->prepare = prepare_nop; |
2078 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2079 | } |
2460 | } |
2080 | else |
2461 | else |
2081 | { |
2462 | { |
2082 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2463 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2083 | |
2464 | |
2084 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2465 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2085 | frame->prepare = prepare_schedule; |
2466 | frame->prepare = prepare_schedule; |
2086 | |
2467 | |
2087 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2468 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2088 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2469 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2089 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2090 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2470 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2091 | } |
2471 | } |
|
|
2472 | } |
2092 | |
2473 | |
|
|
2474 | static void |
|
|
2475 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2476 | { |
|
|
2477 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
2093 | frame->check = slf_check_semaphore_down; |
2478 | frame->check = slf_check_semaphore_down; |
|
|
2479 | } |
2094 | |
2480 | |
|
|
2481 | static void |
|
|
2482 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2483 | { |
|
|
2484 | if (items >= 2) |
|
|
2485 | { |
|
|
2486 | /* callback form */ |
|
|
2487 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2488 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2489 | |
|
|
2490 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2491 | |
|
|
2492 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2493 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2494 | |
|
|
2495 | frame->prepare = prepare_nop; |
|
|
2496 | frame->check = slf_check_nop; |
|
|
2497 | } |
|
|
2498 | else |
|
|
2499 | { |
|
|
2500 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2501 | frame->check = slf_check_semaphore_wait; |
|
|
2502 | } |
|
|
2503 | } |
|
|
2504 | |
|
|
2505 | /* signal */ |
|
|
2506 | |
|
|
2507 | static void |
|
|
2508 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2509 | { |
|
|
2510 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2511 | |
|
|
2512 | /* now signal count waiters */ |
|
|
2513 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2514 | { |
|
|
2515 | SV *cb; |
|
|
2516 | |
|
|
2517 | /* swap first two elements so we can shift a waiter */ |
|
|
2518 | cb = AvARRAY (av)[0]; |
|
|
2519 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2520 | AvARRAY (av)[1] = cb; |
|
|
2521 | |
|
|
2522 | cb = av_shift (av); |
|
|
2523 | |
|
|
2524 | api_ready (aTHX_ cb); |
|
|
2525 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2526 | SvREFCNT_dec (cb); |
|
|
2527 | |
|
|
2528 | --count; |
|
|
2529 | } |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | static int |
|
|
2533 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2534 | { |
|
|
2535 | /* if we are about to throw, also stop waiting */ |
|
|
2536 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2537 | } |
|
|
2538 | |
|
|
2539 | static void |
|
|
2540 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2541 | { |
|
|
2542 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2543 | |
|
|
2544 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2545 | { |
|
|
2546 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2547 | frame->prepare = prepare_nop; |
|
|
2548 | frame->check = slf_check_nop; |
|
|
2549 | } |
|
|
2550 | else |
|
|
2551 | { |
|
|
2552 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2553 | |
|
|
2554 | av_push (av, waiter); |
|
|
2555 | |
|
|
2556 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2557 | frame->prepare = prepare_schedule; |
|
|
2558 | frame->check = slf_check_signal_wait; |
|
|
2559 | } |
2095 | } |
2560 | } |
2096 | |
2561 | |
2097 | /*****************************************************************************/ |
2562 | /*****************************************************************************/ |
|
|
2563 | /* Coro::AIO */ |
2098 | |
2564 | |
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2565 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
2100 | |
2566 | |
2101 | /* create a closure from XS, returns a code reference */ |
2567 | /* helper storage struct */ |
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2568 | struct io_state |
2103 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2104 | static SV * |
|
|
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2106 | { |
2569 | { |
2107 | CV *cv = (CV *)NEWSV (0, 0); |
2570 | int errorno; |
|
|
2571 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2572 | int laststatval; |
|
|
2573 | Stat_t statcache; |
|
|
2574 | }; |
2108 | |
2575 | |
|
|
2576 | static void |
|
|
2577 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2578 | { |
|
|
2579 | dXSARGS; |
|
|
2580 | AV *state = (AV *)GENSUB_ARG; |
|
|
2581 | SV *coro = av_pop (state); |
|
|
2582 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2583 | |
|
|
2584 | av_extend (state, items - 1); |
|
|
2585 | |
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2586 | sv_upgrade (data_sv, SVt_PV); |
|
|
2587 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2588 | SvPOK_only (data_sv); |
2110 | |
2589 | |
2111 | CvANON_on (cv); |
2590 | { |
2112 | CvISXSUB_on (cv); |
2591 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
2113 | CvXSUB (cv) = xsub; |
|
|
2114 | GENSUB_ARG = arg; |
|
|
2115 | |
2592 | |
2116 | return newRV_noinc ((SV *)cv); |
2593 | data->errorno = errno; |
|
|
2594 | data->laststype = PL_laststype; |
|
|
2595 | data->laststatval = PL_laststatval; |
|
|
2596 | data->statcache = PL_statcache; |
|
|
2597 | } |
|
|
2598 | |
|
|
2599 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2600 | { |
|
|
2601 | int i; |
|
|
2602 | |
|
|
2603 | for (i = 0; i < items; ++i) |
|
|
2604 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2605 | } |
|
|
2606 | |
|
|
2607 | av_push (state, data_sv); |
|
|
2608 | |
|
|
2609 | api_ready (aTHX_ coro); |
|
|
2610 | SvREFCNT_dec (coro); |
|
|
2611 | SvREFCNT_dec ((AV *)state); |
|
|
2612 | } |
|
|
2613 | |
|
|
2614 | static int |
|
|
2615 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2616 | { |
|
|
2617 | AV *state = (AV *)frame->data; |
|
|
2618 | |
|
|
2619 | /* if we are about to throw, return early */ |
|
|
2620 | /* this does not cancel the aio request, but at least */ |
|
|
2621 | /* it quickly returns */ |
|
|
2622 | if (CORO_THROW) |
|
|
2623 | return 0; |
|
|
2624 | |
|
|
2625 | /* one element that is an RV? repeat! */ |
|
|
2626 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2627 | return 1; |
|
|
2628 | |
|
|
2629 | /* restore status */ |
|
|
2630 | { |
|
|
2631 | SV *data_sv = av_pop (state); |
|
|
2632 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2633 | |
|
|
2634 | errno = data->errorno; |
|
|
2635 | PL_laststype = data->laststype; |
|
|
2636 | PL_laststatval = data->laststatval; |
|
|
2637 | PL_statcache = data->statcache; |
|
|
2638 | |
|
|
2639 | SvREFCNT_dec (data_sv); |
|
|
2640 | } |
|
|
2641 | |
|
|
2642 | /* push result values */ |
|
|
2643 | { |
|
|
2644 | dSP; |
|
|
2645 | int i; |
|
|
2646 | |
|
|
2647 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2648 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2649 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2650 | |
|
|
2651 | PUTBACK; |
|
|
2652 | } |
|
|
2653 | |
|
|
2654 | return 0; |
|
|
2655 | } |
|
|
2656 | |
|
|
2657 | static void |
|
|
2658 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2659 | { |
|
|
2660 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2661 | SV *coro_hv = SvRV (coro_current); |
|
|
2662 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2663 | |
|
|
2664 | /* put our coroutine id on the state arg */ |
|
|
2665 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2666 | |
|
|
2667 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2668 | if (coro->prio) |
|
|
2669 | { |
|
|
2670 | dSP; |
|
|
2671 | |
|
|
2672 | static SV *prio_cv; |
|
|
2673 | static SV *prio_sv; |
|
|
2674 | |
|
|
2675 | if (expect_false (!prio_cv)) |
|
|
2676 | { |
|
|
2677 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2678 | prio_sv = newSViv (0); |
|
|
2679 | } |
|
|
2680 | |
|
|
2681 | PUSHMARK (SP); |
|
|
2682 | sv_setiv (prio_sv, coro->prio); |
|
|
2683 | XPUSHs (prio_sv); |
|
|
2684 | |
|
|
2685 | PUTBACK; |
|
|
2686 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2687 | } |
|
|
2688 | |
|
|
2689 | /* now call the original request */ |
|
|
2690 | { |
|
|
2691 | dSP; |
|
|
2692 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2693 | int i; |
|
|
2694 | |
|
|
2695 | PUSHMARK (SP); |
|
|
2696 | |
|
|
2697 | /* first push all args to the stack */ |
|
|
2698 | EXTEND (SP, items + 1); |
|
|
2699 | |
|
|
2700 | for (i = 0; i < items; ++i) |
|
|
2701 | PUSHs (arg [i]); |
|
|
2702 | |
|
|
2703 | /* now push the callback closure */ |
|
|
2704 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2705 | |
|
|
2706 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2707 | PUTBACK; |
|
|
2708 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2709 | } |
|
|
2710 | |
|
|
2711 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2712 | frame->data = (void *)state; |
|
|
2713 | frame->prepare = prepare_schedule; |
|
|
2714 | frame->check = slf_check_aio_req; |
|
|
2715 | } |
|
|
2716 | |
|
|
2717 | static void |
|
|
2718 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2719 | { |
|
|
2720 | dXSARGS; |
|
|
2721 | |
|
|
2722 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2723 | |
|
|
2724 | XSRETURN_EMPTY; |
2117 | } |
2725 | } |
2118 | |
2726 | |
2119 | /*****************************************************************************/ |
2727 | /*****************************************************************************/ |
2120 | |
2728 | |
2121 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2729 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
… | |
… | |
2191 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2799 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2192 | } |
2800 | } |
2193 | |
2801 | |
2194 | SV * |
2802 | SV * |
2195 | new (char *klass, ...) |
2803 | new (char *klass, ...) |
|
|
2804 | ALIAS: |
|
|
2805 | Coro::new = 1 |
2196 | CODE: |
2806 | CODE: |
2197 | { |
2807 | { |
2198 | struct coro *coro; |
2808 | struct coro *coro; |
2199 | MAGIC *mg; |
2809 | MAGIC *mg; |
2200 | HV *hv; |
2810 | HV *hv; |
|
|
2811 | CV *cb; |
2201 | int i; |
2812 | int i; |
|
|
2813 | |
|
|
2814 | if (items > 1) |
|
|
2815 | { |
|
|
2816 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2817 | |
|
|
2818 | if (!ix) |
|
|
2819 | { |
|
|
2820 | if (CvISXSUB (cb)) |
|
|
2821 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2822 | |
|
|
2823 | if (!CvROOT (cb)) |
|
|
2824 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2825 | } |
|
|
2826 | } |
2202 | |
2827 | |
2203 | Newz (0, coro, 1, struct coro); |
2828 | Newz (0, coro, 1, struct coro); |
2204 | coro->args = newAV (); |
2829 | coro->args = newAV (); |
2205 | coro->flags = CF_NEW; |
2830 | coro->flags = CF_NEW; |
2206 | |
2831 | |
… | |
… | |
2211 | coro->hv = hv = newHV (); |
2836 | coro->hv = hv = newHV (); |
2212 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2837 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2213 | mg->mg_flags |= MGf_DUP; |
2838 | mg->mg_flags |= MGf_DUP; |
2214 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2839 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2215 | |
2840 | |
|
|
2841 | if (items > 1) |
|
|
2842 | { |
2216 | av_extend (coro->args, items - 1); |
2843 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2844 | |
|
|
2845 | if (ix) |
|
|
2846 | { |
|
|
2847 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2848 | cb = cv_coro_run; |
|
|
2849 | } |
|
|
2850 | |
|
|
2851 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2852 | |
2217 | for (i = 1; i < items; i++) |
2853 | for (i = 2; i < items; i++) |
2218 | av_push (coro->args, newSVsv (ST (i))); |
2854 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2855 | } |
2219 | } |
2856 | } |
2220 | OUTPUT: |
2857 | OUTPUT: |
2221 | RETVAL |
2858 | RETVAL |
2222 | |
|
|
2223 | void |
|
|
2224 | _set_stacklevel (...) |
|
|
2225 | CODE: |
|
|
2226 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
|
|
2227 | |
2859 | |
2228 | void |
2860 | void |
2229 | transfer (...) |
2861 | transfer (...) |
2230 | PROTOTYPE: $$ |
2862 | PROTOTYPE: $$ |
2231 | CODE: |
2863 | CODE: |
… | |
… | |
2355 | |
2987 | |
2356 | void |
2988 | void |
2357 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2989 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2358 | PROTOTYPE: $;$ |
2990 | PROTOTYPE: $;$ |
2359 | CODE: |
2991 | CODE: |
|
|
2992 | { |
|
|
2993 | struct coro *current = SvSTATE_current; |
|
|
2994 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2360 | SvREFCNT_dec (self->throw); |
2995 | SvREFCNT_dec (*throwp); |
2361 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2996 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2997 | } |
2362 | |
2998 | |
2363 | void |
2999 | void |
2364 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3000 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2365 | PROTOTYPE: $;$ |
3001 | PROTOTYPE: $;$ |
2366 | C_ARGS: aTHX_ coro, flags |
3002 | C_ARGS: aTHX_ coro, flags |
… | |
… | |
2415 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3051 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2416 | |
3052 | |
2417 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3053 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2418 | } |
3054 | } |
2419 | |
3055 | |
|
|
3056 | |
2420 | MODULE = Coro::State PACKAGE = Coro |
3057 | MODULE = Coro::State PACKAGE = Coro |
2421 | |
3058 | |
2422 | BOOT: |
3059 | BOOT: |
2423 | { |
3060 | { |
2424 | int i; |
3061 | int i; |
2425 | |
3062 | |
2426 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2427 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3063 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2428 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3064 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2429 | |
3065 | cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); |
|
|
3066 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2430 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3067 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2431 | SvREADONLY_on (coro_current); |
3068 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3069 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3070 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3071 | |
|
|
3072 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3073 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3074 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3075 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2432 | |
3076 | |
2433 | coro_stash = gv_stashpv ("Coro", TRUE); |
3077 | coro_stash = gv_stashpv ("Coro", TRUE); |
2434 | |
3078 | |
2435 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3079 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2436 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3080 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
2444 | |
3088 | |
2445 | { |
3089 | { |
2446 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3090 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2447 | |
3091 | |
2448 | coroapi.schedule = api_schedule; |
3092 | coroapi.schedule = api_schedule; |
|
|
3093 | coroapi.schedule_to = api_schedule_to; |
2449 | coroapi.cede = api_cede; |
3094 | coroapi.cede = api_cede; |
2450 | coroapi.cede_notself = api_cede_notself; |
3095 | coroapi.cede_notself = api_cede_notself; |
2451 | coroapi.ready = api_ready; |
3096 | coroapi.ready = api_ready; |
2452 | coroapi.is_ready = api_is_ready; |
3097 | coroapi.is_ready = api_is_ready; |
2453 | coroapi.nready = coro_nready; |
3098 | coroapi.nready = coro_nready; |
2454 | coroapi.current = coro_current; |
3099 | coroapi.current = coro_current; |
2455 | |
3100 | |
2456 | GCoroAPI = &coroapi; |
3101 | /*GCoroAPI = &coroapi;*/ |
2457 | sv_setiv (sv, (IV)&coroapi); |
3102 | sv_setiv (sv, (IV)&coroapi); |
2458 | SvREADONLY_on (sv); |
3103 | SvREADONLY_on (sv); |
2459 | } |
3104 | } |
2460 | } |
3105 | } |
|
|
3106 | |
|
|
3107 | void |
|
|
3108 | terminate (...) |
|
|
3109 | CODE: |
|
|
3110 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
2461 | |
3111 | |
2462 | void |
3112 | void |
2463 | schedule (...) |
3113 | schedule (...) |
2464 | CODE: |
3114 | CODE: |
2465 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
3115 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
2466 | |
3116 | |
2467 | void |
3117 | void |
|
|
3118 | schedule_to (...) |
|
|
3119 | CODE: |
|
|
3120 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3121 | |
|
|
3122 | void |
|
|
3123 | cede_to (...) |
|
|
3124 | CODE: |
|
|
3125 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3126 | |
|
|
3127 | void |
2468 | cede (...) |
3128 | cede (...) |
2469 | CODE: |
3129 | CODE: |
2470 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
3130 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2471 | |
3131 | |
2472 | void |
3132 | void |
2473 | cede_notself (...) |
3133 | cede_notself (...) |
2474 | CODE: |
3134 | CODE: |
2475 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
3135 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
|
|
3136 | |
|
|
3137 | void |
|
|
3138 | _cancel (Coro::State self) |
|
|
3139 | CODE: |
|
|
3140 | coro_state_destroy (aTHX_ self); |
|
|
3141 | coro_call_on_destroy (aTHX_ self); |
2476 | |
3142 | |
2477 | void |
3143 | void |
2478 | _set_current (SV *current) |
3144 | _set_current (SV *current) |
2479 | PROTOTYPE: $ |
3145 | PROTOTYPE: $ |
2480 | CODE: |
3146 | CODE: |
… | |
… | |
2525 | CODE: |
3191 | CODE: |
2526 | RETVAL = coro_nready; |
3192 | RETVAL = coro_nready; |
2527 | OUTPUT: |
3193 | OUTPUT: |
2528 | RETVAL |
3194 | RETVAL |
2529 | |
3195 | |
2530 | # for async_pool speedup |
|
|
2531 | void |
3196 | void |
2532 | _pool_1 (SV *cb) |
3197 | _pool_handler (...) |
2533 | CODE: |
3198 | CODE: |
2534 | { |
3199 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
2535 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2536 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2537 | AV *defav = GvAV (PL_defgv); |
|
|
2538 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2539 | AV *invoke_av; |
|
|
2540 | int i, len; |
|
|
2541 | |
|
|
2542 | if (!invoke) |
|
|
2543 | { |
|
|
2544 | SV *old = PL_diehook; |
|
|
2545 | PL_diehook = 0; |
|
|
2546 | SvREFCNT_dec (old); |
|
|
2547 | croak ("\3async_pool terminate\2\n"); |
|
|
2548 | } |
|
|
2549 | |
|
|
2550 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2551 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2552 | |
|
|
2553 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2554 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2555 | |
|
|
2556 | invoke_av = (AV *)SvRV (invoke); |
|
|
2557 | len = av_len (invoke_av); |
|
|
2558 | |
|
|
2559 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2560 | |
|
|
2561 | if (len > 0) |
|
|
2562 | { |
|
|
2563 | av_fill (defav, len - 1); |
|
|
2564 | for (i = 0; i < len; ++i) |
|
|
2565 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2566 | } |
|
|
2567 | } |
|
|
2568 | |
3200 | |
2569 | void |
3201 | void |
2570 | _pool_2 (SV *cb) |
3202 | async_pool (SV *cv, ...) |
2571 | CODE: |
|
|
2572 | { |
|
|
2573 | struct coro *coro = SvSTATE_current; |
|
|
2574 | |
|
|
2575 | sv_setsv (cb, &PL_sv_undef); |
|
|
2576 | |
|
|
2577 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2578 | coro->saved_deffh = 0; |
|
|
2579 | |
|
|
2580 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2581 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2582 | { |
|
|
2583 | SV *old = PL_diehook; |
|
|
2584 | PL_diehook = 0; |
|
|
2585 | SvREFCNT_dec (old); |
|
|
2586 | croak ("\3async_pool terminate\2\n"); |
|
|
2587 | } |
|
|
2588 | |
|
|
2589 | av_clear (GvAV (PL_defgv)); |
|
|
2590 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2591 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2592 | |
|
|
2593 | coro->prio = 0; |
|
|
2594 | |
|
|
2595 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2596 | api_trace (aTHX_ coro_current, 0); |
|
|
2597 | |
|
|
2598 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2599 | } |
|
|
2600 | |
|
|
2601 | |
|
|
2602 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2603 | |
|
|
2604 | void |
|
|
2605 | _get_state (SV *self) |
|
|
2606 | PROTOTYPE: $ |
3203 | PROTOTYPE: &@ |
2607 | PPCODE: |
3204 | PPCODE: |
2608 | { |
3205 | { |
2609 | AV *defav = GvAV (PL_defgv); |
3206 | HV *hv = (HV *)av_pop (av_async_pool); |
2610 | AV *av = newAV (); |
3207 | AV *av = newAV (); |
|
|
3208 | SV *cb = ST (0); |
2611 | int i; |
3209 | int i; |
2612 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2613 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2614 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2615 | SvPOK_only (data_sv); |
|
|
2616 | |
3210 | |
2617 | data->errorno = errno; |
3211 | av_extend (av, items - 2); |
2618 | data->laststype = PL_laststype; |
3212 | for (i = 1; i < items; ++i) |
2619 | data->laststatval = PL_laststatval; |
|
|
2620 | data->statcache = PL_statcache; |
|
|
2621 | |
|
|
2622 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2623 | |
|
|
2624 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2625 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3213 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
2626 | |
3214 | |
2627 | av_push (av, data_sv); |
3215 | if ((SV *)hv == &PL_sv_undef) |
2628 | |
|
|
2629 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2630 | |
|
|
2631 | api_ready (aTHX_ self); |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | void |
|
|
2635 | _set_state (SV *state) |
|
|
2636 | PROTOTYPE: $ |
|
|
2637 | PPCODE: |
|
|
2638 | { |
|
|
2639 | AV *av = (AV *)SvRV (state); |
|
|
2640 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2641 | int i; |
|
|
2642 | |
|
|
2643 | errno = data->errorno; |
|
|
2644 | PL_laststype = data->laststype; |
|
|
2645 | PL_laststatval = data->laststatval; |
|
|
2646 | PL_statcache = data->statcache; |
|
|
2647 | |
|
|
2648 | EXTEND (SP, AvFILLp (av)); |
|
|
2649 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2650 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2651 | } |
|
|
2652 | |
|
|
2653 | |
|
|
2654 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2655 | |
|
|
2656 | BOOT: |
|
|
2657 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2658 | |
|
|
2659 | void |
|
|
2660 | _schedule (...) |
|
|
2661 | CODE: |
|
|
2662 | { |
|
|
2663 | static int incede; |
|
|
2664 | |
|
|
2665 | api_cede_notself (aTHX); |
|
|
2666 | |
|
|
2667 | ++incede; |
|
|
2668 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2669 | ; |
|
|
2670 | |
|
|
2671 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2672 | if (coro_nready >= incede) |
|
|
2673 | { |
3216 | { |
2674 | PUSHMARK (SP); |
3217 | PUSHMARK (SP); |
|
|
3218 | EXTEND (SP, 2); |
|
|
3219 | PUSHs (sv_Coro); |
|
|
3220 | PUSHs ((SV *)cv_pool_handler); |
2675 | PUTBACK; |
3221 | PUTBACK; |
2676 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3222 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
2677 | SPAGAIN; |
3223 | SPAGAIN; |
|
|
3224 | |
|
|
3225 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
2678 | } |
3226 | } |
2679 | |
3227 | |
2680 | --incede; |
3228 | { |
|
|
3229 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3230 | |
|
|
3231 | assert (!coro->invoke_cb); |
|
|
3232 | assert (!coro->invoke_av); |
|
|
3233 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3234 | coro->invoke_av = av; |
|
|
3235 | } |
|
|
3236 | |
|
|
3237 | api_ready (aTHX_ (SV *)hv); |
|
|
3238 | |
|
|
3239 | if (GIMME_V != G_VOID) |
|
|
3240 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3241 | else |
|
|
3242 | SvREFCNT_dec (hv); |
2681 | } |
3243 | } |
|
|
3244 | |
|
|
3245 | SV * |
|
|
3246 | rouse_cb () |
|
|
3247 | PROTOTYPE: |
|
|
3248 | CODE: |
|
|
3249 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3250 | OUTPUT: |
|
|
3251 | RETVAL |
|
|
3252 | |
|
|
3253 | void |
|
|
3254 | rouse_wait (...) |
|
|
3255 | PROTOTYPE: ;$ |
|
|
3256 | PPCODE: |
|
|
3257 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2682 | |
3258 | |
2683 | |
3259 | |
2684 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3260 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2685 | |
3261 | |
2686 | BOOT: |
3262 | BOOT: |
2687 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3263 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2688 | |
3264 | |
|
|
3265 | |
2689 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
3266 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2690 | |
3267 | |
2691 | SV * |
3268 | SV * |
2692 | new (SV *klass, SV *count_ = 0) |
3269 | new (SV *klass, SV *count = 0) |
2693 | CODE: |
3270 | CODE: |
2694 | { |
3271 | RETVAL = sv_bless ( |
2695 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
3272 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
2696 | AV *av = newAV (); |
3273 | GvSTASH (CvGV (cv)) |
2697 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
3274 | ); |
2698 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
3275 | OUTPUT: |
2699 | } |
3276 | RETVAL |
|
|
3277 | |
|
|
3278 | # helper for Coro::Channel |
|
|
3279 | SV * |
|
|
3280 | _alloc (int count) |
|
|
3281 | CODE: |
|
|
3282 | RETVAL = coro_waitarray_new (aTHX_ count); |
2700 | OUTPUT: |
3283 | OUTPUT: |
2701 | RETVAL |
3284 | RETVAL |
2702 | |
3285 | |
2703 | SV * |
3286 | SV * |
2704 | count (SV *self) |
3287 | count (SV *self) |
… | |
… | |
2713 | adjust = 1 |
3296 | adjust = 1 |
2714 | CODE: |
3297 | CODE: |
2715 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
3298 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2716 | |
3299 | |
2717 | void |
3300 | void |
2718 | down (SV *self) |
3301 | down (...) |
2719 | CODE: |
3302 | CODE: |
2720 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
3303 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3304 | |
|
|
3305 | void |
|
|
3306 | wait (...) |
|
|
3307 | CODE: |
|
|
3308 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
2721 | |
3309 | |
2722 | void |
3310 | void |
2723 | try (SV *self) |
3311 | try (SV *self) |
2724 | PPCODE: |
3312 | PPCODE: |
2725 | { |
3313 | { |
… | |
… | |
2737 | XSRETURN_NO; |
3325 | XSRETURN_NO; |
2738 | } |
3326 | } |
2739 | |
3327 | |
2740 | void |
3328 | void |
2741 | waiters (SV *self) |
3329 | waiters (SV *self) |
2742 | CODE: |
3330 | PPCODE: |
2743 | { |
3331 | { |
2744 | AV *av = (AV *)SvRV (self); |
3332 | AV *av = (AV *)SvRV (self); |
|
|
3333 | int wcount = AvFILLp (av) + 1 - 1; |
2745 | |
3334 | |
2746 | if (GIMME_V == G_SCALAR) |
3335 | if (GIMME_V == G_SCALAR) |
2747 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
3336 | XPUSHs (sv_2mortal (newSViv (wcount))); |
2748 | else |
3337 | else |
2749 | { |
3338 | { |
2750 | int i; |
3339 | int i; |
2751 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
3340 | EXTEND (SP, wcount); |
2752 | for (i = 1; i <= AvFILLp (av); ++i) |
3341 | for (i = 1; i <= wcount; ++i) |
2753 | PUSHs (newSVsv (AvARRAY (av)[i])); |
3342 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2754 | } |
3343 | } |
2755 | } |
3344 | } |
2756 | |
3345 | |
|
|
3346 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3347 | |
|
|
3348 | SV * |
|
|
3349 | new (SV *klass) |
|
|
3350 | CODE: |
|
|
3351 | RETVAL = sv_bless ( |
|
|
3352 | coro_waitarray_new (aTHX_ 0), |
|
|
3353 | GvSTASH (CvGV (cv)) |
|
|
3354 | ); |
|
|
3355 | OUTPUT: |
|
|
3356 | RETVAL |
|
|
3357 | |
|
|
3358 | void |
|
|
3359 | wait (...) |
|
|
3360 | CODE: |
|
|
3361 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3362 | |
|
|
3363 | void |
|
|
3364 | broadcast (SV *self) |
|
|
3365 | CODE: |
|
|
3366 | { |
|
|
3367 | AV *av = (AV *)SvRV (self); |
|
|
3368 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3369 | } |
|
|
3370 | |
|
|
3371 | void |
|
|
3372 | send (SV *self) |
|
|
3373 | CODE: |
|
|
3374 | { |
|
|
3375 | AV *av = (AV *)SvRV (self); |
|
|
3376 | |
|
|
3377 | if (AvFILLp (av)) |
|
|
3378 | coro_signal_wake (aTHX_ av, 1); |
|
|
3379 | else |
|
|
3380 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3381 | } |
|
|
3382 | |
|
|
3383 | IV |
|
|
3384 | awaited (SV *self) |
|
|
3385 | CODE: |
|
|
3386 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3387 | OUTPUT: |
|
|
3388 | RETVAL |
|
|
3389 | |
|
|
3390 | |
|
|
3391 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3392 | |
|
|
3393 | BOOT: |
|
|
3394 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3395 | |
|
|
3396 | void |
|
|
3397 | _schedule (...) |
|
|
3398 | CODE: |
|
|
3399 | { |
|
|
3400 | static int incede; |
|
|
3401 | |
|
|
3402 | api_cede_notself (aTHX); |
|
|
3403 | |
|
|
3404 | ++incede; |
|
|
3405 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3406 | ; |
|
|
3407 | |
|
|
3408 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3409 | if (coro_nready >= incede) |
|
|
3410 | { |
|
|
3411 | PUSHMARK (SP); |
|
|
3412 | PUTBACK; |
|
|
3413 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3414 | } |
|
|
3415 | |
|
|
3416 | --incede; |
|
|
3417 | } |
|
|
3418 | |
|
|
3419 | |
|
|
3420 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3421 | |
|
|
3422 | void |
|
|
3423 | _register (char *target, char *proto, SV *req) |
|
|
3424 | CODE: |
|
|
3425 | { |
|
|
3426 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3427 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3428 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3429 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3430 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3431 | } |
|
|
3432 | |