… | |
… | |
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 | |
|
|
148 | static perl_mutex coro_lock; |
|
|
149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
|
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150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
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151 | # if CORO_PTHREAD |
156 | # if CORO_PTHREAD |
152 | static void *coro_thx; |
157 | static void *coro_thx; |
153 | # endif |
158 | # endif |
154 | |
|
|
155 | #else |
|
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156 | |
|
|
157 | # define LOCK (void)0 |
|
|
158 | # define UNLOCK (void)0 |
|
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159 | |
|
|
160 | #endif |
159 | #endif |
161 | |
|
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162 | # undef LOCK |
|
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163 | # define LOCK (void)0 |
|
|
164 | # undef UNLOCK |
|
|
165 | # define UNLOCK (void)0 |
|
|
166 | |
|
|
167 | /* helper storage struct for Coro::AIO */ |
|
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168 | struct io_state |
|
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169 | { |
|
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170 | AV *res; |
|
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171 | int errorno; |
|
|
172 | I32 laststype; /* U16 in 5.10.0 */ |
|
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173 | int laststatval; |
|
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174 | Stat_t statcache; |
|
|
175 | }; |
|
|
176 | |
160 | |
177 | 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); |
178 | |
166 | |
179 | static U32 cctx_gen; |
167 | static U32 cctx_gen; |
180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
181 | static struct CoroAPI coroapi; |
169 | static struct CoroAPI coroapi; |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static JMPENV *main_top_env; |
171 | static JMPENV *main_top_env; |
184 | static HV *coro_state_stash, *coro_stash; |
172 | static HV *coro_state_stash, *coro_stash; |
185 | 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 */ |
186 | static volatile struct coro *transfer_next; |
|
|
187 | |
174 | |
188 | static GV *irsgv; /* $/ */ |
175 | static GV *irsgv; /* $/ */ |
189 | static GV *stdoutgv; /* *STDOUT */ |
176 | static GV *stdoutgv; /* *STDOUT */ |
190 | static SV *rv_diehook; |
177 | static SV *rv_diehook; |
191 | static SV *rv_warnhook; |
178 | static SV *rv_warnhook; |
192 | static HV *hv_sig; /* %SIG */ |
179 | static HV *hv_sig; /* %SIG */ |
193 | |
180 | |
194 | /* async_pool helper stuff */ |
181 | /* async_pool helper stuff */ |
195 | static SV *sv_pool_rss; |
182 | static SV *sv_pool_rss; |
196 | static SV *sv_pool_size; |
183 | static SV *sv_pool_size; |
|
|
184 | static SV *sv_async_pool_idle; |
197 | static AV *av_async_pool; |
185 | static AV *av_async_pool; |
|
|
186 | static SV *sv_Coro; |
|
|
187 | static CV *cv_pool_handler; |
|
|
188 | static CV *cv_coro_state_new; |
198 | |
189 | |
199 | /* Coro::AnyEvent */ |
190 | /* Coro::AnyEvent */ |
200 | static SV *sv_activity; |
191 | static SV *sv_activity; |
201 | |
192 | |
202 | static struct coro_cctx *cctx_first; |
193 | static struct coro_cctx *cctx_first; |
… | |
… | |
257 | /* this is a structure representing a perl-level coroutine */ |
248 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
249 | struct coro { |
259 | /* the C coroutine allocated to this perl coroutine, if any */ |
250 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
251 | coro_cctx *cctx; |
261 | |
252 | |
262 | /* process data */ |
253 | /* state data */ |
263 | struct CoroSLF slf_frame; /* saved slf frame */ |
254 | struct CoroSLF slf_frame; /* saved slf frame */ |
264 | AV *mainstack; |
255 | AV *mainstack; |
265 | perl_slots *slot; /* basically the saved sp */ |
256 | perl_slots *slot; /* basically the saved sp */ |
266 | |
257 | |
|
|
258 | CV *startcv; /* the CV to execute */ |
267 | AV *args; /* data associated with this coroutine (initial args) */ |
259 | AV *args; /* data associated with this coroutine (initial args) */ |
268 | int refcnt; /* coroutines are refcounted, yes */ |
260 | int refcnt; /* coroutines are refcounted, yes */ |
269 | int flags; /* CF_ flags */ |
261 | int flags; /* CF_ flags */ |
270 | HV *hv; /* the perl hash associated with this coro, if any */ |
262 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
263 | void (*on_destroy)(pTHX_ struct coro *coro); |
271 | |
264 | |
272 | /* statistics */ |
265 | /* statistics */ |
273 | int usecount; /* number of transfers to this coro */ |
266 | int usecount; /* number of transfers to this coro */ |
274 | |
267 | |
275 | /* coro process data */ |
268 | /* coro process data */ |
276 | int prio; |
269 | int prio; |
277 | SV *throw; /* exception to be thrown */ |
270 | SV *except; /* exception to be thrown */ |
|
|
271 | SV *rouse_cb; |
278 | |
272 | |
279 | /* async_pool */ |
273 | /* async_pool */ |
280 | SV *saved_deffh; |
274 | SV *saved_deffh; |
|
|
275 | SV *invoke_cb; |
|
|
276 | AV *invoke_av; |
281 | |
277 | |
282 | /* linked list */ |
278 | /* linked list */ |
283 | struct coro *next, *prev; |
279 | struct coro *next, *prev; |
284 | }; |
280 | }; |
285 | |
281 | |
286 | typedef struct coro *Coro__State; |
282 | typedef struct coro *Coro__State; |
287 | typedef struct coro *Coro__State_or_hashref; |
283 | typedef struct coro *Coro__State_or_hashref; |
288 | |
284 | |
|
|
285 | /* the following variables are effectively part of the perl context */ |
|
|
286 | /* and get copied between struct coro and these variables */ |
|
|
287 | /* the mainr easonw e don't support windows process emulation */ |
289 | static struct CoroSLF slf_frame; /* the current slf frame */ |
288 | static struct CoroSLF slf_frame; /* the current slf frame */ |
290 | |
289 | |
291 | /** Coro ********************************************************************/ |
290 | /** Coro ********************************************************************/ |
292 | |
291 | |
293 | #define PRIO_MAX 3 |
292 | #define PRIO_MAX 3 |
… | |
… | |
299 | |
298 | |
300 | /* for Coro.pm */ |
299 | /* for Coro.pm */ |
301 | static SV *coro_current; |
300 | static SV *coro_current; |
302 | static SV *coro_readyhook; |
301 | static SV *coro_readyhook; |
303 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
302 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
|
|
303 | static CV *cv_coro_run, *cv_coro_terminate; |
304 | static struct coro *coro_first; |
304 | static struct coro *coro_first; |
305 | #define coro_nready coroapi.nready |
305 | #define coro_nready coroapi.nready |
306 | |
306 | |
307 | /** lowlevel stuff **********************************************************/ |
307 | /** lowlevel stuff **********************************************************/ |
308 | |
308 | |
… | |
… | |
332 | #if PERL_VERSION_ATLEAST (5,10,0) |
332 | #if PERL_VERSION_ATLEAST (5,10,0) |
333 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
333 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
334 | get_hv (name, create); |
334 | get_hv (name, create); |
335 | #endif |
335 | #endif |
336 | return get_hv (name, create); |
336 | return get_hv (name, create); |
|
|
337 | } |
|
|
338 | |
|
|
339 | /* may croak */ |
|
|
340 | INLINE CV * |
|
|
341 | coro_sv_2cv (pTHX_ SV *sv) |
|
|
342 | { |
|
|
343 | HV *st; |
|
|
344 | GV *gvp; |
|
|
345 | return sv_2cv (sv, &st, &gvp, 0); |
337 | } |
346 | } |
338 | |
347 | |
339 | static AV * |
348 | static AV * |
340 | coro_clone_padlist (pTHX_ CV *cv) |
349 | coro_clone_padlist (pTHX_ CV *cv) |
341 | { |
350 | { |
… | |
… | |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
404 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
396 | |
405 | |
397 | return 0; |
406 | return 0; |
398 | } |
407 | } |
399 | |
408 | |
400 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
409 | #define CORO_MAGIC_type_cv 26 |
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
410 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
402 | |
411 | |
403 | static MGVTBL coro_cv_vtbl = { |
412 | static MGVTBL coro_cv_vtbl = { |
404 | 0, 0, 0, 0, |
413 | 0, 0, 0, 0, |
405 | coro_cv_free |
414 | coro_cv_free |
406 | }; |
415 | }; |
407 | |
416 | |
|
|
417 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
418 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
419 | ? SvMAGIC (sv) \ |
|
|
420 | : mg_find (sv, type)) |
|
|
421 | |
408 | #define CORO_MAGIC(sv, type) \ |
422 | #define CORO_MAGIC(sv, type) \ |
409 | SvMAGIC (sv) \ |
423 | (expect_true (SvMAGIC (sv)) \ |
410 | ? SvMAGIC (sv)->mg_type == type \ |
424 | ? CORO_MAGIC_NN (sv, type) \ |
411 | ? SvMAGIC (sv) \ |
|
|
412 | : mg_find (sv, type) \ |
|
|
413 | : 0 |
425 | : 0) |
414 | |
426 | |
415 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
427 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
416 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
428 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
417 | |
429 | |
418 | INLINE struct coro * |
430 | INLINE struct coro * |
419 | SvSTATE_ (pTHX_ SV *coro) |
431 | SvSTATE_ (pTHX_ SV *coro) |
420 | { |
432 | { |
421 | HV *stash; |
433 | HV *stash; |
… | |
… | |
438 | mg = CORO_MAGIC_state (coro); |
450 | mg = CORO_MAGIC_state (coro); |
439 | return (struct coro *)mg->mg_ptr; |
451 | return (struct coro *)mg->mg_ptr; |
440 | } |
452 | } |
441 | |
453 | |
442 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
454 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
455 | |
|
|
456 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
457 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
458 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
443 | |
459 | |
444 | /* the next two functions merely cache the padlists */ |
460 | /* the next two functions merely cache the padlists */ |
445 | static void |
461 | static void |
446 | get_padlist (pTHX_ CV *cv) |
462 | get_padlist (pTHX_ CV *cv) |
447 | { |
463 | { |
… | |
… | |
453 | else |
469 | else |
454 | { |
470 | { |
455 | #if CORO_PREFER_PERL_FUNCTIONS |
471 | #if CORO_PREFER_PERL_FUNCTIONS |
456 | /* this is probably cleaner? but also slower! */ |
472 | /* this is probably cleaner? but also slower! */ |
457 | /* in practise, it seems to be less stable */ |
473 | /* in practise, it seems to be less stable */ |
458 | CV *cp = Perl_cv_clone (cv); |
474 | CV *cp = Perl_cv_clone (aTHX_ cv); |
459 | CvPADLIST (cv) = CvPADLIST (cp); |
475 | CvPADLIST (cv) = CvPADLIST (cp); |
460 | CvPADLIST (cp) = 0; |
476 | CvPADLIST (cp) = 0; |
461 | SvREFCNT_dec (cp); |
477 | SvREFCNT_dec (cp); |
462 | #else |
478 | #else |
463 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
479 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
515 | } |
531 | } |
516 | |
532 | |
517 | PUTBACK; |
533 | PUTBACK; |
518 | } |
534 | } |
519 | |
535 | |
520 | slf_frame = c->slf_frame; |
536 | slf_frame = c->slf_frame; |
|
|
537 | CORO_THROW = c->except; |
521 | } |
538 | } |
522 | |
539 | |
523 | static void |
540 | static void |
524 | save_perl (pTHX_ Coro__State c) |
541 | save_perl (pTHX_ Coro__State c) |
525 | { |
542 | { |
|
|
543 | c->except = CORO_THROW; |
526 | c->slf_frame = slf_frame; |
544 | c->slf_frame = slf_frame; |
527 | |
545 | |
528 | { |
546 | { |
529 | dSP; |
547 | dSP; |
530 | I32 cxix = cxstack_ix; |
548 | I32 cxix = cxstack_ix; |
… | |
… | |
605 | * of perl.c:init_stacks, except that it uses less memory |
623 | * of perl.c:init_stacks, except that it uses less memory |
606 | * on the (sometimes correct) assumption that coroutines do |
624 | * on the (sometimes correct) assumption that coroutines do |
607 | * not usually need a lot of stackspace. |
625 | * not usually need a lot of stackspace. |
608 | */ |
626 | */ |
609 | #if CORO_PREFER_PERL_FUNCTIONS |
627 | #if CORO_PREFER_PERL_FUNCTIONS |
610 | # define coro_init_stacks init_stacks |
628 | # define coro_init_stacks(thx) init_stacks () |
611 | #else |
629 | #else |
612 | static void |
630 | static void |
613 | coro_init_stacks (pTHX) |
631 | coro_init_stacks (pTHX) |
614 | { |
632 | { |
615 | PL_curstackinfo = new_stackinfo(32, 8); |
633 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
678 | #if !PERL_VERSION_ATLEAST (5,10,0) |
696 | #if !PERL_VERSION_ATLEAST (5,10,0) |
679 | Safefree (PL_retstack); |
697 | Safefree (PL_retstack); |
680 | #endif |
698 | #endif |
681 | } |
699 | } |
682 | |
700 | |
|
|
701 | #define CORO_RSS \ |
|
|
702 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
703 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
704 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
705 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
706 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
707 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
708 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
709 | |
683 | static size_t |
710 | static size_t |
684 | coro_rss (pTHX_ struct coro *coro) |
711 | coro_rss (pTHX_ struct coro *coro) |
685 | { |
712 | { |
686 | size_t rss = sizeof (*coro); |
713 | size_t rss = sizeof (*coro); |
687 | |
714 | |
688 | if (coro->mainstack) |
715 | if (coro->mainstack) |
689 | { |
716 | { |
690 | perl_slots tmp_slot; |
|
|
691 | perl_slots *slot; |
|
|
692 | |
|
|
693 | if (coro->flags & CF_RUNNING) |
717 | if (coro->flags & CF_RUNNING) |
694 | { |
718 | { |
695 | slot = &tmp_slot; |
719 | #define SYM(sym) PL_ ## sym |
696 | |
720 | CORO_RSS; |
697 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
698 | # include "state.h" |
|
|
699 | #undef VAR |
721 | #undef SYM |
700 | } |
722 | } |
701 | else |
723 | else |
702 | slot = coro->slot; |
|
|
703 | |
|
|
704 | if (slot) |
|
|
705 | { |
724 | { |
706 | rss += sizeof (slot->curstackinfo); |
725 | #define SYM(sym) coro->slot->sym |
707 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
726 | CORO_RSS; |
708 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
727 | #undef SYM |
709 | rss += slot->tmps_max * sizeof (SV *); |
|
|
710 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
711 | rss += slot->scopestack_max * sizeof (I32); |
|
|
712 | rss += slot->savestack_max * sizeof (ANY); |
|
|
713 | |
|
|
714 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
715 | rss += slot->retstack_max * sizeof (OP *); |
|
|
716 | #endif |
|
|
717 | } |
728 | } |
718 | } |
729 | } |
719 | |
730 | |
720 | return rss; |
731 | return rss; |
721 | } |
732 | } |
… | |
… | |
811 | |
822 | |
812 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
823 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
813 | } |
824 | } |
814 | |
825 | |
815 | static void |
826 | static void |
816 | prepare_nop (aTHX_ struct coro_transfer_args *ta) |
827 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
817 | { |
828 | { |
818 | /* kind of mega-hacky, but works */ |
829 | /* kind of mega-hacky, but works */ |
819 | ta->next = ta->prev = (struct coro *)ta; |
830 | ta->next = ta->prev = (struct coro *)ta; |
820 | } |
831 | } |
821 | |
832 | |
822 | static int |
833 | static int |
823 | slf_check_nop (aTHX) |
834 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
824 | { |
835 | { |
825 | return 0; |
836 | return 0; |
826 | } |
837 | } |
827 | |
838 | |
828 | static void |
839 | static UNOP coro_setup_op; |
|
|
840 | |
|
|
841 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
829 | coro_setup (pTHX_ struct coro *coro) |
842 | coro_setup (pTHX_ struct coro *coro) |
830 | { |
843 | { |
831 | /* |
844 | /* |
832 | * emulate part of the perl startup here. |
845 | * emulate part of the perl startup here. |
833 | */ |
846 | */ |
… | |
… | |
860 | { |
873 | { |
861 | dSP; |
874 | dSP; |
862 | UNOP myop; |
875 | UNOP myop; |
863 | |
876 | |
864 | Zero (&myop, 1, UNOP); |
877 | Zero (&myop, 1, UNOP); |
865 | myop.op_next = Nullop; |
878 | myop.op_next = Nullop; |
|
|
879 | myop.op_type = OP_ENTERSUB; |
866 | myop.op_flags = OPf_WANT_VOID; |
880 | myop.op_flags = OPf_WANT_VOID; |
867 | |
881 | |
868 | PUSHMARK (SP); |
882 | PUSHMARK (SP); |
869 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
883 | PUSHs ((SV *)coro->startcv); |
870 | PUTBACK; |
884 | PUTBACK; |
871 | PL_op = (OP *)&myop; |
885 | PL_op = (OP *)&myop; |
872 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
886 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
873 | SPAGAIN; |
|
|
874 | } |
887 | } |
875 | |
888 | |
876 | /* this newly created coroutine might be run on an existing cctx which most |
889 | /* this newly created coroutine might be run on an existing cctx which most |
877 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
890 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
878 | */ |
891 | */ |
879 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
892 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
880 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
893 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
894 | |
|
|
895 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
896 | coro_setup_op.op_next = PL_op; |
|
|
897 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
898 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
899 | /* no flags etc. required, as an init function won't be called */ |
|
|
900 | |
|
|
901 | PL_op = (OP *)&coro_setup_op; |
|
|
902 | |
|
|
903 | /* copy throw, in case it was set before coro_setup */ |
|
|
904 | CORO_THROW = coro->except; |
881 | } |
905 | } |
882 | |
906 | |
883 | static void |
907 | static void |
884 | coro_destruct (pTHX_ struct coro *coro) |
908 | coro_destruct (pTHX_ struct coro *coro) |
885 | { |
909 | { |
… | |
… | |
909 | |
933 | |
910 | SvREFCNT_dec (PL_diehook); |
934 | SvREFCNT_dec (PL_diehook); |
911 | SvREFCNT_dec (PL_warnhook); |
935 | SvREFCNT_dec (PL_warnhook); |
912 | |
936 | |
913 | SvREFCNT_dec (coro->saved_deffh); |
937 | SvREFCNT_dec (coro->saved_deffh); |
914 | SvREFCNT_dec (coro->throw); |
938 | SvREFCNT_dec (coro->rouse_cb); |
|
|
939 | SvREFCNT_dec (coro->invoke_cb); |
|
|
940 | SvREFCNT_dec (coro->invoke_av); |
915 | |
941 | |
916 | coro_destruct_stacks (aTHX); |
942 | coro_destruct_stacks (aTHX); |
917 | } |
943 | } |
918 | |
944 | |
919 | INLINE void |
945 | INLINE void |
… | |
… | |
929 | static int |
955 | static int |
930 | runops_trace (pTHX) |
956 | runops_trace (pTHX) |
931 | { |
957 | { |
932 | COP *oldcop = 0; |
958 | COP *oldcop = 0; |
933 | int oldcxix = -2; |
959 | int oldcxix = -2; |
934 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
960 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
935 | coro_cctx *cctx = coro->cctx; |
961 | coro_cctx *cctx = coro->cctx; |
936 | |
962 | |
937 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
963 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
938 | { |
964 | { |
939 | PERL_ASYNC_CHECK (); |
965 | PERL_ASYNC_CHECK (); |
… | |
… | |
1006 | SAVETMPS; |
1032 | SAVETMPS; |
1007 | EXTEND (SP, 3); |
1033 | EXTEND (SP, 3); |
1008 | PUSHMARK (SP); |
1034 | PUSHMARK (SP); |
1009 | PUSHs (&PL_sv_yes); |
1035 | PUSHs (&PL_sv_yes); |
1010 | PUSHs (fullname); |
1036 | PUSHs (fullname); |
1011 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1037 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1012 | PUTBACK; |
1038 | PUTBACK; |
1013 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1039 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1014 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1040 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1015 | SPAGAIN; |
1041 | SPAGAIN; |
1016 | FREETMPS; |
1042 | FREETMPS; |
… | |
… | |
1048 | |
1074 | |
1049 | TAINT_NOT; |
1075 | TAINT_NOT; |
1050 | return 0; |
1076 | return 0; |
1051 | } |
1077 | } |
1052 | |
1078 | |
|
|
1079 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1080 | static struct CoroSLF cctx_ssl_frame; |
|
|
1081 | |
1053 | static void |
1082 | static void |
1054 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1083 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1055 | { |
1084 | { |
1056 | ta->prev = (struct coro *)cctx; |
1085 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1057 | ta->next = 0; |
1086 | ta->next = 0; |
1058 | } |
1087 | } |
1059 | |
1088 | |
1060 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1089 | static int |
1061 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1090 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1062 | /* during execution of a perl program */ |
1091 | { |
1063 | /* also initialises PL_top_env */ |
1092 | *frame = cctx_ssl_frame; |
|
|
1093 | |
|
|
1094 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1064 | static void NOINLINE |
1098 | static void NOINLINE |
1065 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1099 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1066 | { |
1100 | { |
1067 | dSP; |
|
|
1068 | UNOP myop; |
|
|
1069 | |
|
|
1070 | PL_top_env = &PL_start_env; |
1101 | PL_top_env = &PL_start_env; |
1071 | |
1102 | |
1072 | if (cctx->flags & CC_TRACE) |
1103 | if (cctx->flags & CC_TRACE) |
1073 | PL_runops = runops_trace; |
1104 | PL_runops = runops_trace; |
1074 | |
1105 | |
1075 | Zero (&myop, 1, UNOP); |
1106 | /* we already must be executing an SLF op, there is no other valid way |
1076 | myop.op_next = PL_op; |
1107 | * that can lead to creation of a new cctx */ |
1077 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1108 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1109 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1078 | |
1110 | |
1079 | PUSHMARK (SP); |
1111 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1080 | EXTEND (SP, 2); |
1112 | cctx_ssl_cctx = cctx; |
1081 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1113 | cctx_ssl_frame = slf_frame; |
1082 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1114 | |
1083 | PUTBACK; |
1115 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1084 | PL_op = (OP *)&myop; |
1116 | slf_frame.check = slf_check_set_stacklevel; |
1085 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1086 | SPAGAIN; |
|
|
1087 | } |
1117 | } |
1088 | |
1118 | |
1089 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1119 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1090 | INLINE void |
1120 | INLINE void |
1091 | transfer_tail (pTHX) |
1121 | transfer_tail (pTHX) |
1092 | { |
1122 | { |
1093 | struct coro *next = (struct coro *)transfer_next; |
|
|
1094 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1095 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1096 | |
|
|
1097 | free_coro_mortal (aTHX); |
1123 | free_coro_mortal (aTHX); |
1098 | UNLOCK; |
|
|
1099 | |
|
|
1100 | if (expect_false (next->throw)) |
|
|
1101 | { |
|
|
1102 | SV *exception = sv_2mortal (next->throw); |
|
|
1103 | |
|
|
1104 | next->throw = 0; |
|
|
1105 | sv_setsv (ERRSV, exception); |
|
|
1106 | croak (0); |
|
|
1107 | } |
|
|
1108 | } |
1124 | } |
1109 | |
1125 | |
1110 | /* |
1126 | /* |
1111 | * this is a _very_ stripped down perl interpreter ;) |
1127 | * this is a _very_ stripped down perl interpreter ;) |
1112 | */ |
1128 | */ |
… | |
… | |
1127 | |
1143 | |
1128 | /* inject a fake subroutine call to cctx_init */ |
1144 | /* inject a fake subroutine call to cctx_init */ |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1145 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1130 | |
1146 | |
1131 | /* cctx_run is the alternative tail of transfer() */ |
1147 | /* cctx_run is the alternative tail of transfer() */ |
1132 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
|
|
1133 | transfer_tail (aTHX); |
1148 | transfer_tail (aTHX); |
1134 | |
1149 | |
1135 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1150 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1136 | PL_restartop = PL_op; |
1151 | PL_restartop = PL_op; |
1137 | perl_run (PL_curinterp); |
1152 | perl_run (PL_curinterp); |
|
|
1153 | /* |
|
|
1154 | * Unfortunately, there is no way to get at the return values of the |
|
|
1155 | * coro body here, as perl_run destroys these |
|
|
1156 | */ |
1138 | |
1157 | |
1139 | /* |
1158 | /* |
1140 | * If perl-run returns we assume exit() was being called or the coro |
1159 | * If perl-run returns we assume exit() was being called or the coro |
1141 | * fell off the end, which seems to be the only valid (non-bug) |
1160 | * fell off the end, which seems to be the only valid (non-bug) |
1142 | * reason for perl_run to return. We try to exit by jumping to the |
1161 | * reason for perl_run to return. We try to exit by jumping to the |
… | |
… | |
1293 | /** coroutine switching *****************************************************/ |
1312 | /** coroutine switching *****************************************************/ |
1294 | |
1313 | |
1295 | static void |
1314 | static void |
1296 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1315 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1297 | { |
1316 | { |
|
|
1317 | /* TODO: throwing up here is considered harmful */ |
|
|
1318 | |
1298 | if (expect_true (prev != next)) |
1319 | if (expect_true (prev != next)) |
1299 | { |
1320 | { |
1300 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1321 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1301 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1322 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1302 | |
1323 | |
… | |
… | |
1312 | #endif |
1333 | #endif |
1313 | } |
1334 | } |
1314 | } |
1335 | } |
1315 | |
1336 | |
1316 | /* always use the TRANSFER macro */ |
1337 | /* always use the TRANSFER macro */ |
1317 | static void NOINLINE |
1338 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1318 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1339 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1319 | { |
1340 | { |
1320 | dSTACKLEVEL; |
1341 | dSTACKLEVEL; |
1321 | |
1342 | |
1322 | /* sometimes transfer is only called to set idle_sp */ |
1343 | /* sometimes transfer is only called to set idle_sp */ |
1323 | if (expect_false (!next)) |
1344 | if (expect_false (!next)) |
1324 | { |
1345 | { |
1325 | ((coro_cctx *)prev)->idle_sp = stacklevel; |
1346 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1326 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1347 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1327 | } |
1348 | } |
1328 | else if (expect_true (prev != next)) |
1349 | else if (expect_true (prev != next)) |
1329 | { |
1350 | { |
1330 | coro_cctx *prev__cctx; |
1351 | coro_cctx *prev__cctx; |
… | |
… | |
1337 | prev->flags |= CF_RUNNING; |
1358 | prev->flags |= CF_RUNNING; |
1338 | } |
1359 | } |
1339 | |
1360 | |
1340 | prev->flags &= ~CF_RUNNING; |
1361 | prev->flags &= ~CF_RUNNING; |
1341 | next->flags |= CF_RUNNING; |
1362 | next->flags |= CF_RUNNING; |
1342 | |
|
|
1343 | LOCK; |
|
|
1344 | |
1363 | |
1345 | /* first get rid of the old state */ |
1364 | /* first get rid of the old state */ |
1346 | save_perl (aTHX_ prev); |
1365 | save_perl (aTHX_ prev); |
1347 | |
1366 | |
1348 | if (expect_false (next->flags & CF_NEW)) |
1367 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1357 | |
1376 | |
1358 | prev__cctx = prev->cctx; |
1377 | prev__cctx = prev->cctx; |
1359 | |
1378 | |
1360 | /* possibly untie and reuse the cctx */ |
1379 | /* possibly untie and reuse the cctx */ |
1361 | if (expect_true ( |
1380 | if (expect_true ( |
1362 | prev__cctx->idle_sp == stacklevel |
1381 | prev__cctx->idle_sp == STACKLEVEL |
1363 | && !(prev__cctx->flags & CC_TRACE) |
1382 | && !(prev__cctx->flags & CC_TRACE) |
1364 | && !force_cctx |
1383 | && !force_cctx |
1365 | )) |
1384 | )) |
1366 | { |
1385 | { |
1367 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1386 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
… | |
… | |
1381 | ++next->usecount; |
1400 | ++next->usecount; |
1382 | |
1401 | |
1383 | if (expect_true (!next->cctx)) |
1402 | if (expect_true (!next->cctx)) |
1384 | next->cctx = cctx_get (aTHX); |
1403 | next->cctx = cctx_get (aTHX); |
1385 | |
1404 | |
1386 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1387 | transfer_next = next; |
|
|
1388 | |
|
|
1389 | if (expect_false (prev__cctx != next->cctx)) |
1405 | if (expect_false (prev__cctx != next->cctx)) |
1390 | { |
1406 | { |
1391 | prev__cctx->top_env = PL_top_env; |
1407 | prev__cctx->top_env = PL_top_env; |
1392 | PL_top_env = next->cctx->top_env; |
1408 | PL_top_env = next->cctx->top_env; |
1393 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1409 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
… | |
… | |
1406 | coro_state_destroy (pTHX_ struct coro *coro) |
1422 | coro_state_destroy (pTHX_ struct coro *coro) |
1407 | { |
1423 | { |
1408 | if (coro->flags & CF_DESTROYED) |
1424 | if (coro->flags & CF_DESTROYED) |
1409 | return 0; |
1425 | return 0; |
1410 | |
1426 | |
|
|
1427 | if (coro->on_destroy) |
|
|
1428 | coro->on_destroy (aTHX_ coro); |
|
|
1429 | |
1411 | coro->flags |= CF_DESTROYED; |
1430 | coro->flags |= CF_DESTROYED; |
1412 | |
1431 | |
1413 | if (coro->flags & CF_READY) |
1432 | if (coro->flags & CF_READY) |
1414 | { |
1433 | { |
1415 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1434 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1416 | /* alternative: look through all ready queues and remove the coro */ |
1435 | /* alternative: look through all ready queues and remove the coro */ |
1417 | LOCK; |
|
|
1418 | --coro_nready; |
1436 | --coro_nready; |
1419 | UNLOCK; |
|
|
1420 | } |
1437 | } |
1421 | else |
1438 | else |
1422 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1439 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1423 | |
1440 | |
1424 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1441 | if (coro->mainstack && coro->mainstack != main_mainstack) |
… | |
… | |
1436 | |
1453 | |
1437 | coro->slot = 0; |
1454 | coro->slot = 0; |
1438 | } |
1455 | } |
1439 | |
1456 | |
1440 | cctx_destroy (coro->cctx); |
1457 | cctx_destroy (coro->cctx); |
|
|
1458 | SvREFCNT_dec (coro->startcv); |
1441 | SvREFCNT_dec (coro->args); |
1459 | SvREFCNT_dec (coro->args); |
|
|
1460 | SvREFCNT_dec (CORO_THROW); |
1442 | |
1461 | |
1443 | if (coro->next) coro->next->prev = coro->prev; |
1462 | if (coro->next) coro->next->prev = coro->prev; |
1444 | if (coro->prev) coro->prev->next = coro->next; |
1463 | if (coro->prev) coro->prev->next = coro->next; |
1445 | if (coro == coro_first) coro_first = coro->next; |
1464 | if (coro == coro_first) coro_first = coro->next; |
1446 | |
1465 | |
… | |
… | |
1500 | |
1519 | |
1501 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1520 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1502 | TRANSFER (ta, 1); |
1521 | TRANSFER (ta, 1); |
1503 | } |
1522 | } |
1504 | |
1523 | |
|
|
1524 | /*****************************************************************************/ |
|
|
1525 | /* gensub: simple closure generation utility */ |
|
|
1526 | |
|
|
1527 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1528 | |
|
|
1529 | /* create a closure from XS, returns a code reference */ |
|
|
1530 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1531 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1532 | static SV * |
|
|
1533 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1534 | { |
|
|
1535 | CV *cv = (CV *)newSV (0); |
|
|
1536 | |
|
|
1537 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1538 | |
|
|
1539 | CvANON_on (cv); |
|
|
1540 | CvISXSUB_on (cv); |
|
|
1541 | CvXSUB (cv) = xsub; |
|
|
1542 | GENSUB_ARG = arg; |
|
|
1543 | |
|
|
1544 | return newRV_noinc ((SV *)cv); |
|
|
1545 | } |
|
|
1546 | |
1505 | /** Coro ********************************************************************/ |
1547 | /** Coro ********************************************************************/ |
1506 | |
1548 | |
1507 | static void |
1549 | INLINE void |
1508 | coro_enq (pTHX_ SV *coro_sv) |
1550 | coro_enq (pTHX_ struct coro *coro) |
1509 | { |
1551 | { |
1510 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1552 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1511 | } |
1553 | } |
1512 | |
1554 | |
1513 | static SV * |
1555 | INLINE SV * |
1514 | coro_deq (pTHX) |
1556 | coro_deq (pTHX) |
1515 | { |
1557 | { |
1516 | int prio; |
1558 | int prio; |
1517 | |
1559 | |
1518 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1560 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1537 | if (coro->flags & CF_READY) |
1579 | if (coro->flags & CF_READY) |
1538 | return 0; |
1580 | return 0; |
1539 | |
1581 | |
1540 | coro->flags |= CF_READY; |
1582 | coro->flags |= CF_READY; |
1541 | |
1583 | |
1542 | LOCK; |
|
|
1543 | |
|
|
1544 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1584 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1545 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1585 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1546 | |
1586 | |
1547 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1587 | coro_enq (aTHX_ coro); |
1548 | ++coro_nready; |
1588 | ++coro_nready; |
1549 | |
1589 | |
1550 | UNLOCK; |
|
|
1551 | |
|
|
1552 | if (sv_hook) |
1590 | if (sv_hook) |
1553 | { |
1591 | { |
1554 | dSP; |
1592 | dSP; |
1555 | |
1593 | |
1556 | ENTER; |
1594 | ENTER; |
1557 | SAVETMPS; |
1595 | SAVETMPS; |
1558 | |
1596 | |
1559 | PUSHMARK (SP); |
1597 | PUSHMARK (SP); |
1560 | PUTBACK; |
1598 | PUTBACK; |
1561 | call_sv (sv_hook, G_DISCARD); |
1599 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1562 | SPAGAIN; |
|
|
1563 | |
1600 | |
1564 | FREETMPS; |
1601 | FREETMPS; |
1565 | LEAVE; |
1602 | LEAVE; |
1566 | } |
1603 | } |
1567 | |
1604 | |
… | |
… | |
1575 | api_is_ready (pTHX_ SV *coro_sv) |
1612 | api_is_ready (pTHX_ SV *coro_sv) |
1576 | { |
1613 | { |
1577 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1614 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1578 | } |
1615 | } |
1579 | |
1616 | |
|
|
1617 | /* expects to own a reference to next->hv */ |
1580 | INLINE void |
1618 | INLINE void |
|
|
1619 | prepare_cede_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1620 | { |
|
|
1621 | SV *prev_sv = SvRV (coro_current); |
|
|
1622 | |
|
|
1623 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1624 | ta->next = next; |
|
|
1625 | |
|
|
1626 | TRANSFER_CHECK (*ta); |
|
|
1627 | |
|
|
1628 | SvRV_set (coro_current, next->hv); |
|
|
1629 | |
|
|
1630 | free_coro_mortal (aTHX); |
|
|
1631 | coro_mortal = prev_sv; |
|
|
1632 | } |
|
|
1633 | |
|
|
1634 | static void |
1581 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1635 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1582 | { |
1636 | { |
1583 | SV *prev_sv, *next_sv; |
|
|
1584 | |
|
|
1585 | for (;;) |
1637 | for (;;) |
1586 | { |
1638 | { |
1587 | LOCK; |
|
|
1588 | next_sv = coro_deq (aTHX); |
1639 | SV *next_sv = coro_deq (aTHX); |
1589 | |
1640 | |
1590 | /* nothing to schedule: call the idle handler */ |
|
|
1591 | if (expect_false (!next_sv)) |
1641 | if (expect_false (!next_sv)) |
1592 | { |
1642 | { |
|
|
1643 | /* nothing to schedule: call the idle handler */ |
1593 | dSP; |
1644 | dSP; |
1594 | UNLOCK; |
|
|
1595 | |
1645 | |
1596 | ENTER; |
1646 | ENTER; |
1597 | SAVETMPS; |
1647 | SAVETMPS; |
1598 | |
1648 | |
1599 | PUSHMARK (SP); |
1649 | PUSHMARK (SP); |
1600 | PUTBACK; |
1650 | PUTBACK; |
1601 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1651 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1602 | SPAGAIN; |
|
|
1603 | |
1652 | |
1604 | FREETMPS; |
1653 | FREETMPS; |
1605 | LEAVE; |
1654 | LEAVE; |
1606 | continue; |
|
|
1607 | } |
1655 | } |
1608 | |
1656 | else |
1609 | ta->next = SvSTATE (next_sv); |
|
|
1610 | |
|
|
1611 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1612 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1613 | { |
1657 | { |
1614 | UNLOCK; |
1658 | struct coro *next = SvSTATE_hv (next_sv); |
1615 | SvREFCNT_dec (next_sv); |
1659 | |
|
|
1660 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1661 | if (expect_false (next->flags & CF_DESTROYED)) |
1616 | /* coro_nready has already been taken care of by destroy */ |
1662 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
1617 | continue; |
1663 | else |
|
|
1664 | { |
|
|
1665 | next->flags &= ~CF_READY; |
|
|
1666 | --coro_nready; |
|
|
1667 | |
|
|
1668 | return prepare_cede_to (aTHX_ ta, next); |
|
|
1669 | } |
1618 | } |
1670 | } |
1619 | |
|
|
1620 | --coro_nready; |
|
|
1621 | UNLOCK; |
|
|
1622 | break; |
|
|
1623 | } |
1671 | } |
1624 | |
|
|
1625 | /* free this only after the transfer */ |
|
|
1626 | prev_sv = SvRV (coro_current); |
|
|
1627 | ta->prev = SvSTATE (prev_sv); |
|
|
1628 | TRANSFER_CHECK (*ta); |
|
|
1629 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
|
|
1630 | ta->next->flags &= ~CF_READY; |
|
|
1631 | SvRV_set (coro_current, next_sv); |
|
|
1632 | |
|
|
1633 | LOCK; |
|
|
1634 | free_coro_mortal (aTHX); |
|
|
1635 | coro_mortal = prev_sv; |
|
|
1636 | UNLOCK; |
|
|
1637 | } |
1672 | } |
1638 | |
1673 | |
1639 | INLINE void |
1674 | INLINE void |
1640 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1675 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1641 | { |
1676 | { |
… | |
… | |
1720 | else |
1755 | else |
1721 | coro->slot->runops = RUNOPS_DEFAULT; |
1756 | coro->slot->runops = RUNOPS_DEFAULT; |
1722 | } |
1757 | } |
1723 | } |
1758 | } |
1724 | |
1759 | |
1725 | #if 0 |
1760 | /*****************************************************************************/ |
|
|
1761 | /* async pool handler */ |
|
|
1762 | |
1726 | static int |
1763 | static int |
1727 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1764 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
1728 | { |
1765 | { |
1729 | AV *padlist; |
1766 | HV *hv = (HV *)SvRV (coro_current); |
1730 | AV *av = (AV *)mg->mg_obj; |
1767 | struct coro *coro = (struct coro *)frame->data; |
1731 | |
1768 | |
1732 | abort (); |
1769 | if (!coro->invoke_cb) |
|
|
1770 | return 1; /* loop till we have invoke */ |
|
|
1771 | else |
|
|
1772 | { |
|
|
1773 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1774 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1775 | |
|
|
1776 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1777 | |
|
|
1778 | { |
|
|
1779 | dSP; |
|
|
1780 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1781 | PUTBACK; |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1785 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1786 | coro->invoke_av = 0; |
|
|
1787 | |
|
|
1788 | return 0; |
|
|
1789 | } |
|
|
1790 | } |
|
|
1791 | |
|
|
1792 | static void |
|
|
1793 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1794 | { |
|
|
1795 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1796 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1797 | |
|
|
1798 | if (expect_true (coro->saved_deffh)) |
|
|
1799 | { |
|
|
1800 | /* subsequent iteration */ |
|
|
1801 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1802 | coro->saved_deffh = 0; |
|
|
1803 | |
|
|
1804 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1805 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1806 | { |
|
|
1807 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1808 | coro->invoke_av = newAV (); |
|
|
1809 | |
|
|
1810 | frame->prepare = prepare_nop; |
|
|
1811 | } |
|
|
1812 | else |
|
|
1813 | { |
|
|
1814 | av_clear (GvAV (PL_defgv)); |
|
|
1815 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1816 | |
|
|
1817 | coro->prio = 0; |
|
|
1818 | |
|
|
1819 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1820 | api_trace (aTHX_ coro_current, 0); |
|
|
1821 | |
|
|
1822 | frame->prepare = prepare_schedule; |
|
|
1823 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1824 | } |
|
|
1825 | } |
|
|
1826 | else |
|
|
1827 | { |
|
|
1828 | /* first iteration, simply fall through */ |
|
|
1829 | frame->prepare = prepare_nop; |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | frame->check = slf_check_pool_handler; |
|
|
1833 | frame->data = (void *)coro; |
|
|
1834 | } |
|
|
1835 | |
|
|
1836 | /*****************************************************************************/ |
|
|
1837 | /* rouse callback */ |
|
|
1838 | |
|
|
1839 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1840 | |
|
|
1841 | static void |
|
|
1842 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1843 | { |
|
|
1844 | dXSARGS; |
|
|
1845 | SV *data = (SV *)GENSUB_ARG; |
|
|
1846 | |
|
|
1847 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1848 | { |
|
|
1849 | /* first call, set args */ |
|
|
1850 | AV *av = newAV (); |
|
|
1851 | SV *coro = SvRV (data); |
|
|
1852 | |
|
|
1853 | SvRV_set (data, (SV *)av); |
|
|
1854 | api_ready (aTHX_ coro); |
|
|
1855 | SvREFCNT_dec (coro); |
|
|
1856 | |
|
|
1857 | /* better take a full copy of the arguments */ |
|
|
1858 | while (items--) |
|
|
1859 | av_store (av, items, newSVsv (ST (items))); |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | XSRETURN_EMPTY; |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | static int |
|
|
1866 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1867 | { |
|
|
1868 | SV *data = (SV *)frame->data; |
|
|
1869 | |
|
|
1870 | if (CORO_THROW) |
|
|
1871 | return 0; |
|
|
1872 | |
|
|
1873 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1874 | return 1; |
|
|
1875 | |
|
|
1876 | /* now push all results on the stack */ |
|
|
1877 | { |
|
|
1878 | dSP; |
|
|
1879 | AV *av = (AV *)SvRV (data); |
|
|
1880 | int i; |
|
|
1881 | |
|
|
1882 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1883 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1884 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1885 | |
|
|
1886 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1887 | AvFILLp (av) = -1; |
|
|
1888 | av_undef (av); |
|
|
1889 | |
|
|
1890 | PUTBACK; |
|
|
1891 | } |
1733 | |
1892 | |
1734 | return 0; |
1893 | return 0; |
1735 | } |
1894 | } |
1736 | |
1895 | |
1737 | static MGVTBL coro_gensub_vtbl = { |
1896 | static void |
1738 | 0, 0, 0, 0, |
1897 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1739 | coro_gensub_free |
1898 | { |
1740 | }; |
1899 | SV *cb; |
1741 | #endif |
1900 | |
|
|
1901 | if (items) |
|
|
1902 | cb = arg [0]; |
|
|
1903 | else |
|
|
1904 | { |
|
|
1905 | struct coro *coro = SvSTATE_current; |
|
|
1906 | |
|
|
1907 | if (!coro->rouse_cb) |
|
|
1908 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1909 | |
|
|
1910 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1911 | coro->rouse_cb = 0; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | if (!SvROK (cb) |
|
|
1915 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1916 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1917 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1918 | |
|
|
1919 | { |
|
|
1920 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1921 | SV *data = (SV *)GENSUB_ARG; |
|
|
1922 | |
|
|
1923 | frame->data = (void *)data; |
|
|
1924 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1925 | frame->check = slf_check_rouse_wait; |
|
|
1926 | } |
|
|
1927 | } |
|
|
1928 | |
|
|
1929 | static SV * |
|
|
1930 | coro_new_rouse_cb (pTHX) |
|
|
1931 | { |
|
|
1932 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1933 | struct coro *coro = SvSTATE_hv (hv); |
|
|
1934 | SV *data = newRV_inc ((SV *)hv); |
|
|
1935 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
1936 | |
|
|
1937 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
1938 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
1939 | |
|
|
1940 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1941 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
1942 | |
|
|
1943 | return cb; |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | /*****************************************************************************/ |
|
|
1947 | /* schedule-like-function opcode (SLF) */ |
|
|
1948 | |
|
|
1949 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1950 | static const CV *slf_cv; |
|
|
1951 | static SV **slf_argv; |
|
|
1952 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1953 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1954 | |
|
|
1955 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1956 | /* recreate the stack frame as perl will on following calls */ |
|
|
1957 | /* since entersub cleared the stack */ |
|
|
1958 | static OP * |
|
|
1959 | pp_restore (pTHX) |
|
|
1960 | { |
|
|
1961 | int i; |
|
|
1962 | SV **SP = PL_stack_base + slf_ax; |
|
|
1963 | |
|
|
1964 | PUSHMARK (SP); |
|
|
1965 | |
|
|
1966 | EXTEND (SP, slf_argc + 1); |
|
|
1967 | |
|
|
1968 | for (i = 0; i < slf_argc; ++i) |
|
|
1969 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1970 | |
|
|
1971 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1972 | |
|
|
1973 | RETURNOP (slf_restore.op_first); |
|
|
1974 | } |
|
|
1975 | |
|
|
1976 | static void |
|
|
1977 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1978 | { |
|
|
1979 | SV **arg = (SV **)slf_frame.data; |
|
|
1980 | |
|
|
1981 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1982 | } |
|
|
1983 | |
|
|
1984 | static void |
|
|
1985 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1986 | { |
|
|
1987 | if (items != 2) |
|
|
1988 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1989 | |
|
|
1990 | frame->prepare = slf_prepare_transfer; |
|
|
1991 | frame->check = slf_check_nop; |
|
|
1992 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1993 | } |
|
|
1994 | |
|
|
1995 | static void |
|
|
1996 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1997 | { |
|
|
1998 | frame->prepare = prepare_schedule; |
|
|
1999 | frame->check = slf_check_nop; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | static void |
|
|
2003 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2004 | { |
|
|
2005 | frame->prepare = prepare_cede; |
|
|
2006 | frame->check = slf_check_nop; |
|
|
2007 | } |
|
|
2008 | |
|
|
2009 | static void |
|
|
2010 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2011 | { |
|
|
2012 | frame->prepare = prepare_cede_notself; |
|
|
2013 | frame->check = slf_check_nop; |
|
|
2014 | } |
|
|
2015 | |
|
|
2016 | /* |
|
|
2017 | * these not obviously related functions are all rolled into one |
|
|
2018 | * function to increase chances that they all will call transfer with the same |
|
|
2019 | * stack offset |
|
|
2020 | * SLF stands for "schedule-like-function". |
|
|
2021 | */ |
|
|
2022 | static OP * |
|
|
2023 | pp_slf (pTHX) |
|
|
2024 | { |
|
|
2025 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2026 | |
|
|
2027 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2028 | /* the latter happens when a new coro has been started */ |
|
|
2029 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2030 | if (expect_true (!slf_frame.prepare)) |
|
|
2031 | { |
|
|
2032 | /* first iteration */ |
|
|
2033 | dSP; |
|
|
2034 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2035 | int items = SP - arg; /* args without function object */ |
|
|
2036 | SV *gv = *sp; |
|
|
2037 | |
|
|
2038 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2039 | /* for us, divert to the real entersub */ |
|
|
2040 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2041 | || !GvCV (gv) |
|
|
2042 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2043 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2044 | |
|
|
2045 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2046 | { |
|
|
2047 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2048 | AV *av = GvAV (PL_defgv); |
|
|
2049 | arg = AvARRAY (av); |
|
|
2050 | items = AvFILLp (av) + 1; |
|
|
2051 | } |
|
|
2052 | |
|
|
2053 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2054 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2055 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2056 | |
|
|
2057 | /* pop args */ |
|
|
2058 | SP = PL_stack_base + POPMARK; |
|
|
2059 | |
|
|
2060 | PUTBACK; |
|
|
2061 | } |
|
|
2062 | |
|
|
2063 | /* now that we have a slf_frame, interpret it! */ |
|
|
2064 | /* we use a callback system not to make the code needlessly */ |
|
|
2065 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2066 | |
|
|
2067 | do |
|
|
2068 | { |
|
|
2069 | struct coro_transfer_args ta; |
|
|
2070 | |
|
|
2071 | slf_frame.prepare (aTHX_ &ta); |
|
|
2072 | TRANSFER (ta, 0); |
|
|
2073 | |
|
|
2074 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2075 | } |
|
|
2076 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2077 | |
|
|
2078 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2079 | |
|
|
2080 | /* exception handling */ |
|
|
2081 | if (expect_false (CORO_THROW)) |
|
|
2082 | { |
|
|
2083 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2084 | |
|
|
2085 | CORO_THROW = 0; |
|
|
2086 | sv_setsv (ERRSV, exception); |
|
|
2087 | croak (0); |
|
|
2088 | } |
|
|
2089 | |
|
|
2090 | /* return value handling - mostly like entersub */ |
|
|
2091 | /* make sure we put something on the stack in scalar context */ |
|
|
2092 | if (GIMME_V == G_SCALAR) |
|
|
2093 | { |
|
|
2094 | dSP; |
|
|
2095 | SV **bot = PL_stack_base + checkmark; |
|
|
2096 | |
|
|
2097 | if (sp == bot) /* too few, push undef */ |
|
|
2098 | bot [1] = &PL_sv_undef; |
|
|
2099 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2100 | bot [1] = *sp; |
|
|
2101 | |
|
|
2102 | SP = bot + 1; |
|
|
2103 | |
|
|
2104 | PUTBACK; |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | return NORMAL; |
|
|
2108 | } |
|
|
2109 | |
|
|
2110 | static void |
|
|
2111 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2112 | { |
|
|
2113 | int i; |
|
|
2114 | SV **arg = PL_stack_base + ax; |
|
|
2115 | int items = PL_stack_sp - arg + 1; |
|
|
2116 | |
|
|
2117 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2118 | |
|
|
2119 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2120 | && PL_op->op_ppaddr != pp_slf) |
|
|
2121 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2122 | |
|
|
2123 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2124 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2125 | slf_cv = cv; |
|
|
2126 | |
|
|
2127 | /* we patch the op, and then re-run the whole call */ |
|
|
2128 | /* we have to put the same argument on the stack for this to work */ |
|
|
2129 | /* and this will be done by pp_restore */ |
|
|
2130 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2131 | slf_restore.op_type = OP_CUSTOM; |
|
|
2132 | slf_restore.op_ppaddr = pp_restore; |
|
|
2133 | slf_restore.op_first = PL_op; |
|
|
2134 | |
|
|
2135 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2136 | |
|
|
2137 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2138 | { |
|
|
2139 | if (items > slf_arga) |
|
|
2140 | { |
|
|
2141 | slf_arga = items; |
|
|
2142 | free (slf_argv); |
|
|
2143 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2144 | } |
|
|
2145 | |
|
|
2146 | slf_argc = items; |
|
|
2147 | |
|
|
2148 | for (i = 0; i < items; ++i) |
|
|
2149 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2150 | } |
|
|
2151 | else |
|
|
2152 | slf_argc = 0; |
|
|
2153 | |
|
|
2154 | PL_op->op_ppaddr = pp_slf; |
|
|
2155 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2156 | |
|
|
2157 | PL_op = (OP *)&slf_restore; |
|
|
2158 | } |
1742 | |
2159 | |
1743 | /*****************************************************************************/ |
2160 | /*****************************************************************************/ |
1744 | /* PerlIO::cede */ |
2161 | /* PerlIO::cede */ |
1745 | |
2162 | |
1746 | typedef struct |
2163 | typedef struct |
… | |
… | |
1814 | PerlIOBuf_get_cnt, |
2231 | PerlIOBuf_get_cnt, |
1815 | PerlIOBuf_set_ptrcnt, |
2232 | PerlIOBuf_set_ptrcnt, |
1816 | }; |
2233 | }; |
1817 | |
2234 | |
1818 | /*****************************************************************************/ |
2235 | /*****************************************************************************/ |
|
|
2236 | /* Coro::Semaphore & Coro::Signal */ |
1819 | |
2237 | |
1820 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1821 | |
|
|
1822 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1823 | static SV *slf_arg0; |
|
|
1824 | static SV *slf_arg1; |
|
|
1825 | static SV *slf_arg2; |
|
|
1826 | |
|
|
1827 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1828 | /* recreate the stack frame as perl will on following calls */ |
|
|
1829 | /* since entersub cleared the stack */ |
|
|
1830 | static OP * |
2238 | static SV * |
1831 | pp_restore (pTHX) |
2239 | coro_waitarray_new (pTHX_ int count) |
1832 | { |
2240 | { |
1833 | dSP; |
2241 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2242 | AV *av = newAV (); |
|
|
2243 | SV **ary; |
1834 | |
2244 | |
1835 | PUSHMARK (SP); |
2245 | /* unfortunately, building manually saves memory */ |
|
|
2246 | Newx (ary, 2, SV *); |
|
|
2247 | AvALLOC (av) = ary; |
|
|
2248 | /*AvARRAY (av) = ary;*/ |
|
|
2249 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2250 | AvMAX (av) = 1; |
|
|
2251 | AvFILLp (av) = 0; |
|
|
2252 | ary [0] = newSViv (count); |
1836 | |
2253 | |
1837 | EXTEND (SP, 3); |
2254 | return newRV_noinc ((SV *)av); |
1838 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1839 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1840 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1841 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1842 | |
|
|
1843 | RETURNOP (slf_restore.op_first); |
|
|
1844 | } |
2255 | } |
1845 | |
2256 | |
1846 | static void |
2257 | /* semaphore */ |
1847 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1848 | { |
|
|
1849 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1850 | } |
|
|
1851 | |
2258 | |
1852 | static void |
2259 | static void |
1853 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
2260 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
1854 | { |
2261 | { |
1855 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
2262 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2263 | IV count = SvIVX (count_sv); |
1856 | |
2264 | |
1857 | frame->prepare = slf_prepare_set_stacklevel; |
2265 | count += adjust; |
1858 | frame->check = slf_check_nop; |
2266 | SvIVX (count_sv) = count; |
1859 | frame->data = (void *)SvIV (arg [0]); |
|
|
1860 | } |
|
|
1861 | |
2267 | |
1862 | static void |
2268 | /* now wake up as many waiters as are expected to lock */ |
1863 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
2269 | while (count > 0 && AvFILLp (av) > 0) |
1864 | { |
|
|
1865 | SV **arg = (SV **)slf_frame.data; |
|
|
1866 | |
|
|
1867 | prepare_transfer (ta, arg [0], arg [1]); |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | static void |
|
|
1871 | slf_init_transfer (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1872 | { |
|
|
1873 | if (items != 2) |
|
|
1874 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1875 | |
|
|
1876 | frame->prepare = slf_prepare_transfer; |
|
|
1877 | frame->check = slf_check_nop; |
|
|
1878 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1879 | } |
|
|
1880 | |
|
|
1881 | static void |
|
|
1882 | slf_init_schedule (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1883 | { |
|
|
1884 | frame->prepare = prepare_schedule; |
|
|
1885 | frame->check = slf_check_nop; |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | static void |
|
|
1889 | slf_init_cede (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1890 | { |
|
|
1891 | frame->prepare = prepare_cede; |
|
|
1892 | frame->check = slf_check_nop; |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | static void |
|
|
1896 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1897 | { |
|
|
1898 | frame->prepare = prepare_cede_notself; |
|
|
1899 | frame->check = slf_check_nop; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1903 | #define CVf_SLF 0x4000 |
|
|
1904 | |
|
|
1905 | /* |
|
|
1906 | * these not obviously related functions are all rolled into one |
|
|
1907 | * function to increase chances that they all will call transfer with the same |
|
|
1908 | * stack offset |
|
|
1909 | * SLF stands for "schedule-like-function". |
|
|
1910 | */ |
|
|
1911 | static OP * |
|
|
1912 | pp_slf (pTHX) |
|
|
1913 | { |
|
|
1914 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1915 | |
|
|
1916 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1917 | /* the latter happens when a new coro has been started */ |
|
|
1918 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1919 | if (expect_true (!slf_frame.prepare)) |
|
|
1920 | { |
2270 | { |
1921 | /* first iteration */ |
2271 | SV *cb; |
1922 | dSP; |
|
|
1923 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1924 | int items = SP - arg; /* args without function object */ |
|
|
1925 | SV *gv = *sp; |
|
|
1926 | |
2272 | |
1927 | /* do a quick consistency check on the "function" object, and if it isn't */ |
2273 | /* swap first two elements so we can shift a waiter */ |
1928 | /* for us, divert to the real entersub */ |
2274 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
1929 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
2275 | AvARRAY (av)[1] = count_sv; |
1930 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
2276 | cb = av_shift (av); |
1931 | |
2277 | |
1932 | /* pop args */ |
2278 | if (SvOBJECT (cb)) |
1933 | SP = PL_stack_base + POPMARK; |
|
|
1934 | |
|
|
1935 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1936 | { |
2279 | { |
1937 | /* ampersand-form of call, use @_ instead of stack */ |
2280 | api_ready (aTHX_ cb); |
1938 | AV *av = GvAV (PL_defgv); |
2281 | --count; |
1939 | arg = AvARRAY (av); |
|
|
1940 | items = AvFILLp (av) + 1; |
|
|
1941 | } |
2282 | } |
1942 | |
2283 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2284 | { |
|
|
2285 | dSP; |
|
|
2286 | PUSHMARK (SP); |
|
|
2287 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1943 | PUTBACK; |
2288 | PUTBACK; |
|
|
2289 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2290 | } |
1944 | |
2291 | |
1945 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) (aTHX_ &slf_frame, arg, items); |
2292 | SvREFCNT_dec (cb); |
1946 | } |
|
|
1947 | |
|
|
1948 | /* now interpret the slf_frame */ |
|
|
1949 | /* we use a callback system not to make the code needlessly */ |
|
|
1950 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1951 | |
|
|
1952 | do |
|
|
1953 | { |
2293 | } |
1954 | struct coro_transfer_args ta; |
2294 | } |
1955 | |
2295 | |
1956 | slf_frame.prepare (aTHX_ &ta); |
2296 | static void |
1957 | TRANSFER (ta, 0); |
2297 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2298 | { |
|
|
2299 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2300 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2301 | } |
1958 | |
2302 | |
1959 | checkmark = PL_stack_sp - PL_stack_base; |
2303 | static int |
|
|
2304 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2305 | { |
|
|
2306 | AV *av = (AV *)frame->data; |
|
|
2307 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2308 | |
|
|
2309 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2310 | if (CORO_THROW) |
|
|
2311 | return 0; |
|
|
2312 | else if (SvIVX (count_sv) > 0) |
1960 | } |
2313 | { |
1961 | while (slf_frame.check (aTHX_ &slf_frame)); |
2314 | SvSTATE_current->on_destroy = 0; |
1962 | |
2315 | |
|
|
2316 | if (acquire) |
|
|
2317 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2318 | else |
|
|
2319 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2320 | |
|
|
2321 | return 0; |
|
|
2322 | } |
|
|
2323 | else |
|
|
2324 | { |
|
|
2325 | int i; |
|
|
2326 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2327 | /* waiters list and only add us if we aren't in there already */ |
|
|
2328 | /* this avoids some degenerate memory usage cases */ |
|
|
2329 | |
|
|
2330 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2331 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2332 | return 1; |
|
|
2333 | |
|
|
2334 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2335 | return 1; |
|
|
2336 | } |
|
|
2337 | } |
|
|
2338 | |
|
|
2339 | static int |
|
|
2340 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2341 | { |
|
|
2342 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2343 | } |
|
|
2344 | |
|
|
2345 | static int |
|
|
2346 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2347 | { |
|
|
2348 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2349 | } |
|
|
2350 | |
|
|
2351 | static void |
|
|
2352 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2353 | { |
|
|
2354 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2355 | |
|
|
2356 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2357 | { |
|
|
2358 | frame->data = (void *)av; |
|
|
2359 | frame->prepare = prepare_nop; |
|
|
2360 | } |
|
|
2361 | else |
|
|
2362 | { |
|
|
2363 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2364 | |
|
|
2365 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2366 | frame->prepare = prepare_schedule; |
|
|
2367 | |
|
|
2368 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2369 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2370 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2371 | } |
|
|
2372 | } |
|
|
2373 | |
|
|
2374 | static void |
|
|
2375 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2376 | { |
|
|
2377 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2378 | frame->check = slf_check_semaphore_down; |
|
|
2379 | } |
|
|
2380 | |
|
|
2381 | static void |
|
|
2382 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2383 | { |
|
|
2384 | if (items >= 2) |
|
|
2385 | { |
|
|
2386 | /* callback form */ |
|
|
2387 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2388 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2389 | |
|
|
2390 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2391 | |
|
|
2392 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2393 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2394 | |
|
|
2395 | frame->prepare = prepare_nop; |
|
|
2396 | frame->check = slf_check_nop; |
|
|
2397 | } |
|
|
2398 | else |
|
|
2399 | { |
|
|
2400 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2401 | frame->check = slf_check_semaphore_wait; |
|
|
2402 | } |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | /* signal */ |
|
|
2406 | |
|
|
2407 | static void |
|
|
2408 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2409 | { |
|
|
2410 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2411 | |
|
|
2412 | /* now signal count waiters */ |
|
|
2413 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2414 | { |
|
|
2415 | SV *cb; |
|
|
2416 | |
|
|
2417 | /* swap first two elements so we can shift a waiter */ |
|
|
2418 | cb = AvARRAY (av)[0]; |
|
|
2419 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2420 | AvARRAY (av)[1] = cb; |
|
|
2421 | |
|
|
2422 | cb = av_shift (av); |
|
|
2423 | |
|
|
2424 | api_ready (aTHX_ cb); |
|
|
2425 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2426 | SvREFCNT_dec (cb); |
|
|
2427 | |
|
|
2428 | --count; |
|
|
2429 | } |
|
|
2430 | } |
|
|
2431 | |
|
|
2432 | static int |
|
|
2433 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2434 | { |
|
|
2435 | /* if we are about to throw, also stop waiting */ |
|
|
2436 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | static void |
|
|
2440 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2441 | { |
|
|
2442 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2443 | |
|
|
2444 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2445 | { |
|
|
2446 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2447 | frame->prepare = prepare_nop; |
|
|
2448 | frame->check = slf_check_nop; |
|
|
2449 | } |
|
|
2450 | else |
|
|
2451 | { |
|
|
2452 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2453 | |
|
|
2454 | av_push (av, waiter); |
|
|
2455 | |
|
|
2456 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2457 | frame->prepare = prepare_schedule; |
|
|
2458 | frame->check = slf_check_signal_wait; |
|
|
2459 | } |
|
|
2460 | } |
|
|
2461 | |
|
|
2462 | /*****************************************************************************/ |
|
|
2463 | /* Coro::AIO */ |
|
|
2464 | |
|
|
2465 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2466 | |
|
|
2467 | /* helper storage struct */ |
|
|
2468 | struct io_state |
|
|
2469 | { |
|
|
2470 | int errorno; |
|
|
2471 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2472 | int laststatval; |
|
|
2473 | Stat_t statcache; |
|
|
2474 | }; |
|
|
2475 | |
|
|
2476 | static void |
|
|
2477 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2478 | { |
|
|
2479 | dXSARGS; |
|
|
2480 | AV *state = (AV *)GENSUB_ARG; |
|
|
2481 | SV *coro = av_pop (state); |
|
|
2482 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2483 | |
|
|
2484 | av_extend (state, items - 1); |
|
|
2485 | |
|
|
2486 | sv_upgrade (data_sv, SVt_PV); |
|
|
2487 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2488 | SvPOK_only (data_sv); |
|
|
2489 | |
|
|
2490 | { |
|
|
2491 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2492 | |
|
|
2493 | data->errorno = errno; |
|
|
2494 | data->laststype = PL_laststype; |
|
|
2495 | data->laststatval = PL_laststatval; |
|
|
2496 | data->statcache = PL_statcache; |
|
|
2497 | } |
|
|
2498 | |
|
|
2499 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2500 | { |
|
|
2501 | int i; |
|
|
2502 | |
|
|
2503 | for (i = 0; i < items; ++i) |
|
|
2504 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2505 | } |
|
|
2506 | |
|
|
2507 | av_push (state, data_sv); |
|
|
2508 | |
|
|
2509 | api_ready (aTHX_ coro); |
|
|
2510 | SvREFCNT_dec (coro); |
|
|
2511 | SvREFCNT_dec ((AV *)state); |
|
|
2512 | } |
|
|
2513 | |
|
|
2514 | static int |
|
|
2515 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2516 | { |
|
|
2517 | AV *state = (AV *)frame->data; |
|
|
2518 | |
|
|
2519 | /* if we are about to throw, return early */ |
|
|
2520 | /* this does not cancel the aio request, but at least */ |
|
|
2521 | /* it quickly returns */ |
|
|
2522 | if (CORO_THROW) |
|
|
2523 | return 0; |
|
|
2524 | |
|
|
2525 | /* one element that is an RV? repeat! */ |
|
|
2526 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2527 | return 1; |
|
|
2528 | |
|
|
2529 | /* restore status */ |
|
|
2530 | { |
|
|
2531 | SV *data_sv = av_pop (state); |
|
|
2532 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2533 | |
|
|
2534 | errno = data->errorno; |
|
|
2535 | PL_laststype = data->laststype; |
|
|
2536 | PL_laststatval = data->laststatval; |
|
|
2537 | PL_statcache = data->statcache; |
|
|
2538 | |
|
|
2539 | SvREFCNT_dec (data_sv); |
|
|
2540 | } |
|
|
2541 | |
|
|
2542 | /* push result values */ |
1963 | { |
2543 | { |
1964 | dSP; |
2544 | dSP; |
1965 | SV **bot = PL_stack_base + checkmark; |
2545 | int i; |
1966 | int gimme = GIMME_V; |
|
|
1967 | |
2546 | |
1968 | slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */ |
2547 | EXTEND (SP, AvFILLp (state) + 1); |
1969 | |
2548 | for (i = 0; i <= AvFILLp (state); ++i) |
1970 | /* make sure we put something on the stack in scalar context */ |
2549 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
1971 | if (gimme == G_SCALAR) |
|
|
1972 | { |
|
|
1973 | if (sp == bot) |
|
|
1974 | XPUSHs (&PL_sv_undef); |
|
|
1975 | |
|
|
1976 | SP = bot + 1; |
|
|
1977 | } |
|
|
1978 | |
2550 | |
1979 | PUTBACK; |
2551 | PUTBACK; |
1980 | } |
2552 | } |
1981 | |
2553 | |
1982 | return NORMAL; |
2554 | return 0; |
1983 | } |
2555 | } |
1984 | |
2556 | |
1985 | static void |
2557 | static void |
1986 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
2558 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1987 | { |
2559 | { |
1988 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
2560 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2561 | SV *coro_hv = SvRV (coro_current); |
|
|
2562 | struct coro *coro = SvSTATE_hv (coro_hv); |
1989 | |
2563 | |
1990 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
2564 | /* put our coroutine id on the state arg */ |
1991 | && PL_op->op_ppaddr != pp_slf) |
2565 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
1992 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1993 | |
2566 | |
1994 | if (items > 3) |
2567 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
1995 | croak ("Coro only supports up to three arguments to SLF functions currently, caught"); |
2568 | if (coro->prio) |
|
|
2569 | { |
|
|
2570 | dSP; |
1996 | |
2571 | |
1997 | CvFLAGS (cv) |= CVf_SLF; |
2572 | static SV *prio_cv; |
1998 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
2573 | static SV *prio_sv; |
1999 | slf_cv = cv; |
|
|
2000 | |
2574 | |
2001 | /* we patch the op, and then re-run the whole call */ |
2575 | if (expect_false (!prio_cv)) |
2002 | /* we have to put the same argument on the stack for this to work */ |
2576 | { |
2003 | /* and this will be done by pp_restore */ |
2577 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
2004 | slf_restore.op_next = (OP *)&slf_restore; |
2578 | prio_sv = newSViv (0); |
2005 | slf_restore.op_type = OP_NULL; |
2579 | } |
2006 | slf_restore.op_ppaddr = pp_restore; |
|
|
2007 | slf_restore.op_first = PL_op; |
|
|
2008 | |
2580 | |
2009 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
2581 | PUSHMARK (SP); |
2010 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
2582 | sv_setiv (prio_sv, coro->prio); |
2011 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
2583 | XPUSHs (prio_sv); |
2012 | |
2584 | |
2013 | PL_op->op_ppaddr = pp_slf; |
2585 | PUTBACK; |
|
|
2586 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2587 | } |
2014 | |
2588 | |
2015 | PL_op = (OP *)&slf_restore; |
2589 | /* now call the original request */ |
|
|
2590 | { |
|
|
2591 | dSP; |
|
|
2592 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2593 | int i; |
|
|
2594 | |
|
|
2595 | PUSHMARK (SP); |
|
|
2596 | |
|
|
2597 | /* first push all args to the stack */ |
|
|
2598 | EXTEND (SP, items + 1); |
|
|
2599 | |
|
|
2600 | for (i = 0; i < items; ++i) |
|
|
2601 | PUSHs (arg [i]); |
|
|
2602 | |
|
|
2603 | /* now push the callback closure */ |
|
|
2604 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2605 | |
|
|
2606 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2607 | PUTBACK; |
|
|
2608 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2609 | } |
|
|
2610 | |
|
|
2611 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2612 | frame->data = (void *)state; |
|
|
2613 | frame->prepare = prepare_schedule; |
|
|
2614 | frame->check = slf_check_aio_req; |
2016 | } |
2615 | } |
|
|
2616 | |
|
|
2617 | static void |
|
|
2618 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2619 | { |
|
|
2620 | dXSARGS; |
|
|
2621 | |
|
|
2622 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2623 | |
|
|
2624 | XSRETURN_EMPTY; |
|
|
2625 | } |
|
|
2626 | |
|
|
2627 | /*****************************************************************************/ |
2017 | |
2628 | |
2018 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2629 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2019 | |
2630 | |
2020 | PROTOTYPES: DISABLE |
2631 | PROTOTYPES: DISABLE |
2021 | |
2632 | |
2022 | BOOT: |
2633 | BOOT: |
2023 | { |
2634 | { |
2024 | #ifdef USE_ITHREADS |
2635 | #ifdef USE_ITHREADS |
2025 | MUTEX_INIT (&coro_lock); |
|
|
2026 | # if CORO_PTHREAD |
2636 | # if CORO_PTHREAD |
2027 | coro_thx = PERL_GET_CONTEXT; |
2637 | coro_thx = PERL_GET_CONTEXT; |
2028 | # endif |
2638 | # endif |
2029 | #endif |
2639 | #endif |
2030 | BOOT_PAGESIZE; |
2640 | BOOT_PAGESIZE; |
… | |
… | |
2050 | main_mainstack = PL_mainstack; |
2660 | main_mainstack = PL_mainstack; |
2051 | main_top_env = PL_top_env; |
2661 | main_top_env = PL_top_env; |
2052 | |
2662 | |
2053 | while (main_top_env->je_prev) |
2663 | while (main_top_env->je_prev) |
2054 | main_top_env = main_top_env->je_prev; |
2664 | main_top_env = main_top_env->je_prev; |
|
|
2665 | |
|
|
2666 | { |
|
|
2667 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2668 | |
|
|
2669 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2670 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2671 | newSVpv ("coro_slf", 0), 0); |
|
|
2672 | |
|
|
2673 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2674 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2675 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2676 | } |
2055 | |
2677 | |
2056 | coroapi.ver = CORO_API_VERSION; |
2678 | coroapi.ver = CORO_API_VERSION; |
2057 | coroapi.rev = CORO_API_REVISION; |
2679 | coroapi.rev = CORO_API_REVISION; |
2058 | |
2680 | |
2059 | coroapi.transfer = api_transfer; |
2681 | coroapi.transfer = api_transfer; |
… | |
… | |
2077 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2699 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2078 | } |
2700 | } |
2079 | |
2701 | |
2080 | SV * |
2702 | SV * |
2081 | new (char *klass, ...) |
2703 | new (char *klass, ...) |
|
|
2704 | ALIAS: |
|
|
2705 | Coro::new = 1 |
2082 | CODE: |
2706 | CODE: |
2083 | { |
2707 | { |
2084 | struct coro *coro; |
2708 | struct coro *coro; |
2085 | MAGIC *mg; |
2709 | MAGIC *mg; |
2086 | HV *hv; |
2710 | HV *hv; |
|
|
2711 | CV *cb; |
2087 | int i; |
2712 | int i; |
|
|
2713 | |
|
|
2714 | if (items > 1) |
|
|
2715 | { |
|
|
2716 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2717 | |
|
|
2718 | if (!ix) |
|
|
2719 | { |
|
|
2720 | if (CvISXSUB (cb)) |
|
|
2721 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2722 | |
|
|
2723 | if (!CvROOT (cb)) |
|
|
2724 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2725 | } |
|
|
2726 | } |
2088 | |
2727 | |
2089 | Newz (0, coro, 1, struct coro); |
2728 | Newz (0, coro, 1, struct coro); |
2090 | coro->args = newAV (); |
2729 | coro->args = newAV (); |
2091 | coro->flags = CF_NEW; |
2730 | coro->flags = CF_NEW; |
2092 | |
2731 | |
… | |
… | |
2097 | coro->hv = hv = newHV (); |
2736 | coro->hv = hv = newHV (); |
2098 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2737 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2099 | mg->mg_flags |= MGf_DUP; |
2738 | mg->mg_flags |= MGf_DUP; |
2100 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2739 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2101 | |
2740 | |
|
|
2741 | if (items > 1) |
|
|
2742 | { |
2102 | av_extend (coro->args, items - 1); |
2743 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2744 | |
|
|
2745 | if (ix) |
|
|
2746 | { |
|
|
2747 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2748 | cb = cv_coro_run; |
|
|
2749 | } |
|
|
2750 | |
|
|
2751 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2752 | |
2103 | for (i = 1; i < items; i++) |
2753 | for (i = 2; i < items; i++) |
2104 | av_push (coro->args, newSVsv (ST (i))); |
2754 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2755 | } |
2105 | } |
2756 | } |
2106 | OUTPUT: |
2757 | OUTPUT: |
2107 | RETVAL |
2758 | RETVAL |
2108 | |
2759 | |
2109 | void |
2760 | void |
2110 | _set_stacklevel (...) |
2761 | transfer (...) |
|
|
2762 | PROTOTYPE: $$ |
2111 | CODE: |
2763 | CODE: |
2112 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
2764 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2113 | |
|
|
2114 | void |
|
|
2115 | transfer (...) |
|
|
2116 | CODE: |
|
|
2117 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
|
|
2118 | |
2765 | |
2119 | bool |
2766 | bool |
2120 | _destroy (SV *coro_sv) |
2767 | _destroy (SV *coro_sv) |
2121 | CODE: |
2768 | CODE: |
2122 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2769 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2129 | CODE: |
2776 | CODE: |
2130 | _exit (code); |
2777 | _exit (code); |
2131 | |
2778 | |
2132 | int |
2779 | int |
2133 | cctx_stacksize (int new_stacksize = 0) |
2780 | cctx_stacksize (int new_stacksize = 0) |
|
|
2781 | PROTOTYPE: ;$ |
2134 | CODE: |
2782 | CODE: |
2135 | RETVAL = cctx_stacksize; |
2783 | RETVAL = cctx_stacksize; |
2136 | if (new_stacksize) |
2784 | if (new_stacksize) |
2137 | { |
2785 | { |
2138 | cctx_stacksize = new_stacksize; |
2786 | cctx_stacksize = new_stacksize; |
… | |
… | |
2141 | OUTPUT: |
2789 | OUTPUT: |
2142 | RETVAL |
2790 | RETVAL |
2143 | |
2791 | |
2144 | int |
2792 | int |
2145 | cctx_max_idle (int max_idle = 0) |
2793 | cctx_max_idle (int max_idle = 0) |
|
|
2794 | PROTOTYPE: ;$ |
2146 | CODE: |
2795 | CODE: |
2147 | RETVAL = cctx_max_idle; |
2796 | RETVAL = cctx_max_idle; |
2148 | if (max_idle > 1) |
2797 | if (max_idle > 1) |
2149 | cctx_max_idle = max_idle; |
2798 | cctx_max_idle = max_idle; |
2150 | OUTPUT: |
2799 | OUTPUT: |
2151 | RETVAL |
2800 | RETVAL |
2152 | |
2801 | |
2153 | int |
2802 | int |
2154 | cctx_count () |
2803 | cctx_count () |
|
|
2804 | PROTOTYPE: |
2155 | CODE: |
2805 | CODE: |
2156 | RETVAL = cctx_count; |
2806 | RETVAL = cctx_count; |
2157 | OUTPUT: |
2807 | OUTPUT: |
2158 | RETVAL |
2808 | RETVAL |
2159 | |
2809 | |
2160 | int |
2810 | int |
2161 | cctx_idle () |
2811 | cctx_idle () |
|
|
2812 | PROTOTYPE: |
2162 | CODE: |
2813 | CODE: |
2163 | RETVAL = cctx_idle; |
2814 | RETVAL = cctx_idle; |
2164 | OUTPUT: |
2815 | OUTPUT: |
2165 | RETVAL |
2816 | RETVAL |
2166 | |
2817 | |
2167 | void |
2818 | void |
2168 | list () |
2819 | list () |
|
|
2820 | PROTOTYPE: |
2169 | PPCODE: |
2821 | PPCODE: |
2170 | { |
2822 | { |
2171 | struct coro *coro; |
2823 | struct coro *coro; |
2172 | for (coro = coro_first; coro; coro = coro->next) |
2824 | for (coro = coro_first; coro; coro = coro->next) |
2173 | if (coro->hv) |
2825 | if (coro->hv) |
… | |
… | |
2235 | |
2887 | |
2236 | void |
2888 | void |
2237 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2889 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2238 | PROTOTYPE: $;$ |
2890 | PROTOTYPE: $;$ |
2239 | CODE: |
2891 | CODE: |
|
|
2892 | { |
|
|
2893 | struct coro *current = SvSTATE_current; |
|
|
2894 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2240 | SvREFCNT_dec (self->throw); |
2895 | SvREFCNT_dec (*throwp); |
2241 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2896 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2897 | } |
2242 | |
2898 | |
2243 | void |
2899 | void |
2244 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2900 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2901 | PROTOTYPE: $;$ |
2245 | C_ARGS: aTHX_ coro, flags |
2902 | C_ARGS: aTHX_ coro, flags |
2246 | |
2903 | |
2247 | SV * |
2904 | SV * |
2248 | has_cctx (Coro::State coro) |
2905 | has_cctx (Coro::State coro) |
2249 | PROTOTYPE: $ |
2906 | PROTOTYPE: $ |
… | |
… | |
2274 | OUTPUT: |
2931 | OUTPUT: |
2275 | RETVAL |
2932 | RETVAL |
2276 | |
2933 | |
2277 | void |
2934 | void |
2278 | force_cctx () |
2935 | force_cctx () |
|
|
2936 | PROTOTYPE: |
2279 | CODE: |
2937 | CODE: |
2280 | struct coro *coro = SvSTATE (coro_current); |
|
|
2281 | coro->cctx->idle_sp = 0; |
2938 | SvSTATE_current->cctx->idle_sp = 0; |
2282 | |
2939 | |
2283 | void |
2940 | void |
2284 | swap_defsv (Coro::State self) |
2941 | swap_defsv (Coro::State self) |
2285 | PROTOTYPE: $ |
2942 | PROTOTYPE: $ |
2286 | ALIAS: |
2943 | ALIAS: |
… | |
… | |
2294 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2951 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2295 | |
2952 | |
2296 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2953 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2297 | } |
2954 | } |
2298 | |
2955 | |
|
|
2956 | |
2299 | MODULE = Coro::State PACKAGE = Coro |
2957 | MODULE = Coro::State PACKAGE = Coro |
2300 | |
2958 | |
2301 | BOOT: |
2959 | BOOT: |
2302 | { |
2960 | { |
2303 | int i; |
2961 | int i; |
2304 | |
2962 | |
2305 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2963 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2306 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2964 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2307 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2965 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2308 | |
2966 | cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); |
|
|
2967 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2309 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
2968 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2310 | SvREADONLY_on (coro_current); |
2969 | |
|
|
2970 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
2971 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
2972 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
2973 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2311 | |
2974 | |
2312 | coro_stash = gv_stashpv ("Coro", TRUE); |
2975 | coro_stash = gv_stashpv ("Coro", TRUE); |
2313 | |
2976 | |
2314 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2977 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2315 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2978 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
2330 | coroapi.ready = api_ready; |
2993 | coroapi.ready = api_ready; |
2331 | coroapi.is_ready = api_is_ready; |
2994 | coroapi.is_ready = api_is_ready; |
2332 | coroapi.nready = coro_nready; |
2995 | coroapi.nready = coro_nready; |
2333 | coroapi.current = coro_current; |
2996 | coroapi.current = coro_current; |
2334 | |
2997 | |
2335 | GCoroAPI = &coroapi; |
2998 | /*GCoroAPI = &coroapi;*/ |
2336 | sv_setiv (sv, (IV)&coroapi); |
2999 | sv_setiv (sv, (IV)&coroapi); |
2337 | SvREADONLY_on (sv); |
3000 | SvREADONLY_on (sv); |
2338 | } |
3001 | } |
2339 | } |
3002 | } |
2340 | |
3003 | |
2341 | void |
3004 | void |
2342 | schedule (...) |
3005 | schedule (...) |
2343 | CODE: |
3006 | CODE: |
2344 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), items); |
3007 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
2345 | |
3008 | |
2346 | void |
3009 | void |
2347 | cede (...) |
3010 | cede (...) |
2348 | CODE: |
3011 | CODE: |
2349 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), items); |
3012 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2350 | |
3013 | |
2351 | void |
3014 | void |
2352 | cede_notself (...) |
3015 | cede_notself (...) |
2353 | CODE: |
3016 | CODE: |
2354 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), items); |
3017 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2355 | |
3018 | |
2356 | void |
3019 | void |
2357 | _set_current (SV *current) |
3020 | _set_current (SV *current) |
2358 | PROTOTYPE: $ |
3021 | PROTOTYPE: $ |
2359 | CODE: |
3022 | CODE: |
… | |
… | |
2362 | |
3025 | |
2363 | void |
3026 | void |
2364 | _set_readyhook (SV *hook) |
3027 | _set_readyhook (SV *hook) |
2365 | PROTOTYPE: $ |
3028 | PROTOTYPE: $ |
2366 | CODE: |
3029 | CODE: |
2367 | LOCK; |
|
|
2368 | SvREFCNT_dec (coro_readyhook); |
3030 | SvREFCNT_dec (coro_readyhook); |
2369 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3031 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2370 | UNLOCK; |
|
|
2371 | |
3032 | |
2372 | int |
3033 | int |
2373 | prio (Coro::State coro, int newprio = 0) |
3034 | prio (Coro::State coro, int newprio = 0) |
|
|
3035 | PROTOTYPE: $;$ |
2374 | ALIAS: |
3036 | ALIAS: |
2375 | nice = 1 |
3037 | nice = 1 |
2376 | CODE: |
3038 | CODE: |
2377 | { |
3039 | { |
2378 | RETVAL = coro->prio; |
3040 | RETVAL = coro->prio; |
… | |
… | |
2405 | CODE: |
3067 | CODE: |
2406 | RETVAL = coro_nready; |
3068 | RETVAL = coro_nready; |
2407 | OUTPUT: |
3069 | OUTPUT: |
2408 | RETVAL |
3070 | RETVAL |
2409 | |
3071 | |
2410 | # for async_pool speedup |
|
|
2411 | void |
3072 | void |
2412 | _pool_1 (SV *cb) |
3073 | _pool_handler (...) |
2413 | CODE: |
3074 | CODE: |
2414 | { |
3075 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
2415 | struct coro *coro = SvSTATE (coro_current); |
|
|
2416 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2417 | AV *defav = GvAV (PL_defgv); |
|
|
2418 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2419 | AV *invoke_av; |
|
|
2420 | int i, len; |
|
|
2421 | |
3076 | |
2422 | if (!invoke) |
3077 | void |
|
|
3078 | async_pool (SV *cv, ...) |
|
|
3079 | PROTOTYPE: &@ |
|
|
3080 | PPCODE: |
|
|
3081 | { |
|
|
3082 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3083 | AV *av = newAV (); |
|
|
3084 | SV *cb = ST (0); |
|
|
3085 | int i; |
|
|
3086 | |
|
|
3087 | av_extend (av, items - 2); |
|
|
3088 | for (i = 1; i < items; ++i) |
|
|
3089 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3090 | |
|
|
3091 | if ((SV *)hv == &PL_sv_undef) |
2423 | { |
3092 | { |
2424 | SV *old = PL_diehook; |
3093 | PUSHMARK (SP); |
2425 | PL_diehook = 0; |
3094 | EXTEND (SP, 2); |
2426 | SvREFCNT_dec (old); |
3095 | PUSHs (sv_Coro); |
2427 | croak ("\3async_pool terminate\2\n"); |
3096 | PUSHs ((SV *)cv_pool_handler); |
|
|
3097 | PUTBACK; |
|
|
3098 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3099 | SPAGAIN; |
|
|
3100 | |
|
|
3101 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
2428 | } |
3102 | } |
2429 | |
3103 | |
2430 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2431 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2432 | |
|
|
2433 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2434 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2435 | |
|
|
2436 | invoke_av = (AV *)SvRV (invoke); |
|
|
2437 | len = av_len (invoke_av); |
|
|
2438 | |
|
|
2439 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2440 | |
|
|
2441 | if (len > 0) |
|
|
2442 | { |
3104 | { |
2443 | av_fill (defav, len - 1); |
3105 | struct coro *coro = SvSTATE_hv (hv); |
2444 | for (i = 0; i < len; ++i) |
3106 | |
2445 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3107 | assert (!coro->invoke_cb); |
|
|
3108 | assert (!coro->invoke_av); |
|
|
3109 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3110 | coro->invoke_av = av; |
2446 | } |
3111 | } |
2447 | |
3112 | |
|
|
3113 | api_ready (aTHX_ (SV *)hv); |
|
|
3114 | |
|
|
3115 | if (GIMME_V != G_VOID) |
|
|
3116 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3117 | else |
2448 | SvREFCNT_dec (invoke); |
3118 | SvREFCNT_dec (hv); |
2449 | } |
3119 | } |
2450 | |
3120 | |
2451 | void |
3121 | SV * |
2452 | _pool_2 (SV *cb) |
3122 | rouse_cb () |
|
|
3123 | PROTOTYPE: |
2453 | CODE: |
3124 | CODE: |
2454 | { |
3125 | RETVAL = coro_new_rouse_cb (aTHX); |
2455 | struct coro *coro = SvSTATE (coro_current); |
|
|
2456 | |
|
|
2457 | sv_setsv (cb, &PL_sv_undef); |
|
|
2458 | |
|
|
2459 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2460 | coro->saved_deffh = 0; |
|
|
2461 | |
|
|
2462 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2463 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2464 | { |
|
|
2465 | SV *old = PL_diehook; |
|
|
2466 | PL_diehook = 0; |
|
|
2467 | SvREFCNT_dec (old); |
|
|
2468 | croak ("\3async_pool terminate\2\n"); |
|
|
2469 | } |
|
|
2470 | |
|
|
2471 | av_clear (GvAV (PL_defgv)); |
|
|
2472 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2473 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2474 | |
|
|
2475 | coro->prio = 0; |
|
|
2476 | |
|
|
2477 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2478 | api_trace (aTHX_ coro_current, 0); |
|
|
2479 | |
|
|
2480 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2481 | } |
|
|
2482 | |
|
|
2483 | #if 0 |
|
|
2484 | |
|
|
2485 | void |
|
|
2486 | _generator_call (...) |
|
|
2487 | PROTOTYPE: @ |
|
|
2488 | PPCODE: |
|
|
2489 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2490 | xxxx |
|
|
2491 | abort (); |
|
|
2492 | |
|
|
2493 | SV * |
|
|
2494 | gensub (SV *sub, ...) |
|
|
2495 | PROTOTYPE: &;@ |
|
|
2496 | CODE: |
|
|
2497 | { |
|
|
2498 | struct coro *coro; |
|
|
2499 | MAGIC *mg; |
|
|
2500 | CV *xcv; |
|
|
2501 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2502 | int i; |
|
|
2503 | |
|
|
2504 | CvGV (ncv) = CvGV (cv); |
|
|
2505 | CvFILE (ncv) = CvFILE (cv); |
|
|
2506 | |
|
|
2507 | Newz (0, coro, 1, struct coro); |
|
|
2508 | coro->args = newAV (); |
|
|
2509 | coro->flags = CF_NEW; |
|
|
2510 | |
|
|
2511 | av_extend (coro->args, items - 1); |
|
|
2512 | for (i = 1; i < items; i++) |
|
|
2513 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2514 | |
|
|
2515 | CvISXSUB_on (ncv); |
|
|
2516 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2517 | |
|
|
2518 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2519 | |
|
|
2520 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2521 | CvANON_on (ncv); |
|
|
2522 | |
|
|
2523 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2524 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2525 | } |
|
|
2526 | OUTPUT: |
3126 | OUTPUT: |
2527 | RETVAL |
3127 | RETVAL |
2528 | |
3128 | |
2529 | #endif |
|
|
2530 | |
|
|
2531 | |
|
|
2532 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2533 | |
|
|
2534 | void |
3129 | void |
2535 | _get_state (SV *self) |
3130 | rouse_wait (...) |
|
|
3131 | PROTOTYPE: ;$ |
2536 | PPCODE: |
3132 | PPCODE: |
2537 | { |
3133 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2538 | AV *defav = GvAV (PL_defgv); |
|
|
2539 | AV *av = newAV (); |
|
|
2540 | int i; |
|
|
2541 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2542 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2543 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2544 | SvPOK_only (data_sv); |
|
|
2545 | |
3134 | |
2546 | data->errorno = errno; |
|
|
2547 | data->laststype = PL_laststype; |
|
|
2548 | data->laststatval = PL_laststatval; |
|
|
2549 | data->statcache = PL_statcache; |
|
|
2550 | |
3135 | |
2551 | av_extend (av, AvFILLp (defav) + 1 + 1); |
3136 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2552 | |
3137 | |
2553 | for (i = 0; i <= AvFILLp (defav); ++i) |
3138 | BOOT: |
2554 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3139 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2555 | |
3140 | |
2556 | av_push (av, data_sv); |
|
|
2557 | |
3141 | |
2558 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
3142 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2559 | |
3143 | |
2560 | api_ready (aTHX_ self); |
3144 | SV * |
2561 | } |
3145 | new (SV *klass, SV *count = 0) |
|
|
3146 | CODE: |
|
|
3147 | RETVAL = sv_bless ( |
|
|
3148 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3149 | GvSTASH (CvGV (cv)) |
|
|
3150 | ); |
|
|
3151 | OUTPUT: |
|
|
3152 | RETVAL |
|
|
3153 | |
|
|
3154 | # helper for Coro::Channel |
|
|
3155 | SV * |
|
|
3156 | _alloc (int count) |
|
|
3157 | CODE: |
|
|
3158 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3159 | OUTPUT: |
|
|
3160 | RETVAL |
|
|
3161 | |
|
|
3162 | SV * |
|
|
3163 | count (SV *self) |
|
|
3164 | CODE: |
|
|
3165 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3166 | OUTPUT: |
|
|
3167 | RETVAL |
2562 | |
3168 | |
2563 | void |
3169 | void |
2564 | _set_state (SV *state) |
3170 | up (SV *self, int adjust = 1) |
2565 | PROTOTYPE: $ |
3171 | ALIAS: |
|
|
3172 | adjust = 1 |
|
|
3173 | CODE: |
|
|
3174 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3175 | |
|
|
3176 | void |
|
|
3177 | down (...) |
|
|
3178 | CODE: |
|
|
3179 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3180 | |
|
|
3181 | void |
|
|
3182 | wait (...) |
|
|
3183 | CODE: |
|
|
3184 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3185 | |
|
|
3186 | void |
|
|
3187 | try (SV *self) |
|
|
3188 | PPCODE: |
|
|
3189 | { |
|
|
3190 | AV *av = (AV *)SvRV (self); |
|
|
3191 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3192 | IV count = SvIVX (count_sv); |
|
|
3193 | |
|
|
3194 | if (count > 0) |
|
|
3195 | { |
|
|
3196 | --count; |
|
|
3197 | SvIVX (count_sv) = count; |
|
|
3198 | XSRETURN_YES; |
|
|
3199 | } |
|
|
3200 | else |
|
|
3201 | XSRETURN_NO; |
|
|
3202 | } |
|
|
3203 | |
|
|
3204 | void |
|
|
3205 | waiters (SV *self) |
|
|
3206 | PPCODE: |
|
|
3207 | { |
|
|
3208 | AV *av = (AV *)SvRV (self); |
|
|
3209 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3210 | |
|
|
3211 | if (GIMME_V == G_SCALAR) |
|
|
3212 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3213 | else |
|
|
3214 | { |
|
|
3215 | int i; |
|
|
3216 | EXTEND (SP, wcount); |
|
|
3217 | for (i = 1; i <= wcount; ++i) |
|
|
3218 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3219 | } |
|
|
3220 | } |
|
|
3221 | |
|
|
3222 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3223 | |
|
|
3224 | SV * |
|
|
3225 | new (SV *klass) |
2566 | PPCODE: |
3226 | CODE: |
|
|
3227 | RETVAL = sv_bless ( |
|
|
3228 | coro_waitarray_new (aTHX_ 0), |
|
|
3229 | GvSTASH (CvGV (cv)) |
|
|
3230 | ); |
|
|
3231 | OUTPUT: |
|
|
3232 | RETVAL |
|
|
3233 | |
|
|
3234 | void |
|
|
3235 | wait (...) |
|
|
3236 | CODE: |
|
|
3237 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3238 | |
|
|
3239 | void |
|
|
3240 | broadcast (SV *self) |
|
|
3241 | CODE: |
2567 | { |
3242 | { |
2568 | AV *av = (AV *)SvRV (state); |
3243 | AV *av = (AV *)SvRV (self); |
2569 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
3244 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
2570 | int i; |
3245 | } |
2571 | |
3246 | |
2572 | errno = data->errorno; |
3247 | void |
2573 | PL_laststype = data->laststype; |
3248 | send (SV *self) |
2574 | PL_laststatval = data->laststatval; |
3249 | CODE: |
2575 | PL_statcache = data->statcache; |
3250 | { |
|
|
3251 | AV *av = (AV *)SvRV (self); |
2576 | |
3252 | |
2577 | EXTEND (SP, AvFILLp (av)); |
3253 | if (AvFILLp (av)) |
2578 | for (i = 0; i < AvFILLp (av); ++i) |
3254 | coro_signal_wake (aTHX_ av, 1); |
2579 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
3255 | else |
|
|
3256 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2580 | } |
3257 | } |
|
|
3258 | |
|
|
3259 | IV |
|
|
3260 | awaited (SV *self) |
|
|
3261 | CODE: |
|
|
3262 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3263 | OUTPUT: |
|
|
3264 | RETVAL |
2581 | |
3265 | |
2582 | |
3266 | |
2583 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3267 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2584 | |
3268 | |
2585 | BOOT: |
3269 | BOOT: |
2586 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3270 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2587 | |
3271 | |
2588 | SV * |
3272 | void |
2589 | _schedule (...) |
3273 | _schedule (...) |
2590 | PROTOTYPE: @ |
|
|
2591 | CODE: |
3274 | CODE: |
2592 | { |
3275 | { |
2593 | static int incede; |
3276 | static int incede; |
2594 | |
3277 | |
2595 | api_cede_notself (aTHX); |
3278 | api_cede_notself (aTHX); |
… | |
… | |
2601 | sv_setsv (sv_activity, &PL_sv_undef); |
3284 | sv_setsv (sv_activity, &PL_sv_undef); |
2602 | if (coro_nready >= incede) |
3285 | if (coro_nready >= incede) |
2603 | { |
3286 | { |
2604 | PUSHMARK (SP); |
3287 | PUSHMARK (SP); |
2605 | PUTBACK; |
3288 | PUTBACK; |
2606 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3289 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2607 | SPAGAIN; |
|
|
2608 | } |
3290 | } |
2609 | |
3291 | |
2610 | --incede; |
3292 | --incede; |
2611 | } |
3293 | } |
2612 | |
3294 | |
2613 | |
3295 | |
2614 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3296 | MODULE = Coro::State PACKAGE = Coro::AIO |
2615 | |
3297 | |
2616 | BOOT: |
3298 | void |
2617 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3299 | _register (char *target, char *proto, SV *req) |
|
|
3300 | CODE: |
|
|
3301 | { |
|
|
3302 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3303 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3304 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3305 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3306 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3307 | } |
2618 | |
3308 | |