… | |
… | |
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 |
100 | |
103 | |
101 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
107 | #endif |
… | |
… | |
142 | #define NOINLINE attribute ((noinline)) |
145 | #define NOINLINE attribute ((noinline)) |
143 | |
146 | |
144 | #include "CoroAPI.h" |
147 | #include "CoroAPI.h" |
145 | |
148 | |
146 | #ifdef USE_ITHREADS |
149 | #ifdef USE_ITHREADS |
147 | |
|
|
148 | static perl_mutex coro_lock; |
|
|
149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
|
|
150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
|
151 | # if CORO_PTHREAD |
150 | # if CORO_PTHREAD |
152 | static void *coro_thx; |
151 | static void *coro_thx; |
153 | # endif |
152 | # endif |
154 | |
|
|
155 | #else |
|
|
156 | |
|
|
157 | # define LOCK (void)0 |
|
|
158 | # define UNLOCK (void)0 |
|
|
159 | |
|
|
160 | #endif |
153 | #endif |
161 | |
|
|
162 | # undef LOCK |
|
|
163 | # define LOCK (void)0 |
|
|
164 | # undef UNLOCK |
|
|
165 | # define UNLOCK (void)0 |
|
|
166 | |
|
|
167 | /* helper storage struct for Coro::AIO */ |
|
|
168 | struct io_state |
|
|
169 | { |
|
|
170 | AV *res; |
|
|
171 | int errorno; |
|
|
172 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
173 | int laststatval; |
|
|
174 | Stat_t statcache; |
|
|
175 | }; |
|
|
176 | |
154 | |
177 | static double (*nvtime)(); /* so why doesn't it take void? */ |
155 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
156 | |
|
|
157 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
158 | #define CVf_SLF 0x4000 |
|
|
159 | static OP *pp_slf (pTHX); |
178 | |
160 | |
179 | static U32 cctx_gen; |
161 | static U32 cctx_gen; |
180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
162 | static size_t cctx_stacksize = CORO_STACKSIZE; |
181 | static struct CoroAPI coroapi; |
163 | static struct CoroAPI coroapi; |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
164 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static JMPENV *main_top_env; |
165 | static JMPENV *main_top_env; |
184 | static HV *coro_state_stash, *coro_stash; |
166 | static HV *coro_state_stash, *coro_stash; |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
167 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
186 | static volatile struct coro *transfer_next; |
|
|
187 | |
|
|
188 | struct transfer_args |
|
|
189 | { |
|
|
190 | struct coro *prev, *next; |
|
|
191 | }; |
|
|
192 | |
168 | |
193 | static GV *irsgv; /* $/ */ |
169 | static GV *irsgv; /* $/ */ |
194 | static GV *stdoutgv; /* *STDOUT */ |
170 | static GV *stdoutgv; /* *STDOUT */ |
195 | static SV *rv_diehook; |
171 | static SV *rv_diehook; |
196 | static SV *rv_warnhook; |
172 | static SV *rv_warnhook; |
… | |
… | |
215 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
191 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
216 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
192 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
217 | }; |
193 | }; |
218 | |
194 | |
219 | /* this is a structure representing a c-level coroutine */ |
195 | /* this is a structure representing a c-level coroutine */ |
220 | typedef struct coro_cctx { |
196 | typedef struct coro_cctx |
|
|
197 | { |
221 | struct coro_cctx *next; |
198 | struct coro_cctx *next; |
222 | |
199 | |
223 | /* the stack */ |
200 | /* the stack */ |
224 | void *sptr; |
201 | void *sptr; |
225 | size_t ssize; |
202 | size_t ssize; |
… | |
… | |
243 | CF_NEW = 0x0004, /* has never been switched to */ |
220 | CF_NEW = 0x0004, /* has never been switched to */ |
244 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
221 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
245 | }; |
222 | }; |
246 | |
223 | |
247 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
224 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
248 | typedef struct { |
225 | typedef struct |
|
|
226 | { |
249 | SV *defsv; |
227 | SV *defsv; |
250 | AV *defav; |
228 | AV *defav; |
251 | SV *errsv; |
229 | SV *errsv; |
252 | SV *irsgv; |
230 | SV *irsgv; |
253 | #define VAR(name,type) type name; |
231 | #define VAR(name,type) type name; |
… | |
… | |
257 | |
235 | |
258 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
236 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
259 | |
237 | |
260 | /* this is a structure representing a perl-level coroutine */ |
238 | /* this is a structure representing a perl-level coroutine */ |
261 | struct coro { |
239 | struct coro { |
262 | /* the c coroutine allocated to this perl coroutine, if any */ |
240 | /* the C coroutine allocated to this perl coroutine, if any */ |
263 | coro_cctx *cctx; |
241 | coro_cctx *cctx; |
264 | |
242 | |
265 | /* process data */ |
243 | /* state data */ |
|
|
244 | struct CoroSLF slf_frame; /* saved slf frame */ |
266 | AV *mainstack; |
245 | AV *mainstack; |
267 | perl_slots *slot; /* basically the saved sp */ |
246 | perl_slots *slot; /* basically the saved sp */ |
268 | |
247 | |
269 | AV *args; /* data associated with this coroutine (initial args) */ |
248 | AV *args; /* data associated with this coroutine (initial args) */ |
270 | int refcnt; /* coroutines are refcounted, yes */ |
249 | int refcnt; /* coroutines are refcounted, yes */ |
271 | int flags; /* CF_ flags */ |
250 | int flags; /* CF_ flags */ |
272 | HV *hv; /* the perl hash associated with this coro, if any */ |
251 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
252 | void (*on_destroy)(pTHX_ struct coro *coro); |
273 | |
253 | |
274 | /* statistics */ |
254 | /* statistics */ |
275 | int usecount; /* number of transfers to this coro */ |
255 | int usecount; /* number of transfers to this coro */ |
276 | |
256 | |
277 | /* coro process data */ |
257 | /* coro process data */ |
… | |
… | |
285 | struct coro *next, *prev; |
265 | struct coro *next, *prev; |
286 | }; |
266 | }; |
287 | |
267 | |
288 | typedef struct coro *Coro__State; |
268 | typedef struct coro *Coro__State; |
289 | typedef struct coro *Coro__State_or_hashref; |
269 | typedef struct coro *Coro__State_or_hashref; |
|
|
270 | |
|
|
271 | /* the following variables are effectively part of the perl context */ |
|
|
272 | /* and get copied between struct coro and these variables */ |
|
|
273 | /* the mainr easonw e don't support windows process emulation */ |
|
|
274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
|
|
275 | static SV *coro_throw; |
290 | |
276 | |
291 | /** Coro ********************************************************************/ |
277 | /** Coro ********************************************************************/ |
292 | |
278 | |
293 | #define PRIO_MAX 3 |
279 | #define PRIO_MAX 3 |
294 | #define PRIO_HIGH 1 |
280 | #define PRIO_HIGH 1 |
… | |
… | |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
381 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
396 | |
382 | |
397 | return 0; |
383 | return 0; |
398 | } |
384 | } |
399 | |
385 | |
400 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
386 | #define CORO_MAGIC_type_cv 26 |
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
387 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
402 | |
388 | |
403 | static MGVTBL coro_cv_vtbl = { |
389 | static MGVTBL coro_cv_vtbl = { |
404 | 0, 0, 0, 0, |
390 | 0, 0, 0, 0, |
405 | coro_cv_free |
391 | coro_cv_free |
406 | }; |
392 | }; |
407 | |
393 | |
|
|
394 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
395 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
396 | ? SvMAGIC (sv) \ |
|
|
397 | : mg_find (sv, type)) |
|
|
398 | |
408 | #define CORO_MAGIC(sv, type) \ |
399 | #define CORO_MAGIC(sv, type) \ |
409 | SvMAGIC (sv) \ |
400 | (expect_true (SvMAGIC (sv)) \ |
410 | ? SvMAGIC (sv)->mg_type == type \ |
401 | ? CORO_MAGIC_NN (sv, type) \ |
411 | ? SvMAGIC (sv) \ |
|
|
412 | : mg_find (sv, type) \ |
|
|
413 | : 0 |
402 | : 0) |
414 | |
403 | |
415 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
404 | #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) |
405 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
417 | |
406 | |
418 | INLINE struct coro * |
407 | INLINE struct coro * |
419 | SvSTATE_ (pTHX_ SV *coro) |
408 | SvSTATE_ (pTHX_ SV *coro) |
420 | { |
409 | { |
421 | HV *stash; |
410 | HV *stash; |
… | |
… | |
438 | mg = CORO_MAGIC_state (coro); |
427 | mg = CORO_MAGIC_state (coro); |
439 | return (struct coro *)mg->mg_ptr; |
428 | return (struct coro *)mg->mg_ptr; |
440 | } |
429 | } |
441 | |
430 | |
442 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
431 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
432 | |
|
|
433 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
434 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
435 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
443 | |
436 | |
444 | /* the next two functions merely cache the padlists */ |
437 | /* the next two functions merely cache the padlists */ |
445 | static void |
438 | static void |
446 | get_padlist (pTHX_ CV *cv) |
439 | get_padlist (pTHX_ CV *cv) |
447 | { |
440 | { |
… | |
… | |
514 | CvPADLIST (cv) = (AV *)POPs; |
507 | CvPADLIST (cv) = (AV *)POPs; |
515 | } |
508 | } |
516 | |
509 | |
517 | PUTBACK; |
510 | PUTBACK; |
518 | } |
511 | } |
|
|
512 | |
|
|
513 | slf_frame = c->slf_frame; |
|
|
514 | coro_throw = c->throw; |
519 | } |
515 | } |
520 | |
516 | |
521 | static void |
517 | static void |
522 | save_perl (pTHX_ Coro__State c) |
518 | save_perl (pTHX_ Coro__State c) |
523 | { |
519 | { |
|
|
520 | c->throw = coro_throw; |
|
|
521 | c->slf_frame = slf_frame; |
|
|
522 | |
524 | { |
523 | { |
525 | dSP; |
524 | dSP; |
526 | I32 cxix = cxstack_ix; |
525 | I32 cxix = cxstack_ix; |
527 | PERL_CONTEXT *ccstk = cxstack; |
526 | PERL_CONTEXT *ccstk = cxstack; |
528 | PERL_SI *top_si = PL_curstackinfo; |
527 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
595 | #undef VAR |
594 | #undef VAR |
596 | } |
595 | } |
597 | } |
596 | } |
598 | |
597 | |
599 | /* |
598 | /* |
600 | * allocate various perl stacks. This is an exact copy |
599 | * allocate various perl stacks. This is almost an exact copy |
601 | * of perl.c:init_stacks, except that it uses less memory |
600 | * of perl.c:init_stacks, except that it uses less memory |
602 | * on the (sometimes correct) assumption that coroutines do |
601 | * on the (sometimes correct) assumption that coroutines do |
603 | * not usually need a lot of stackspace. |
602 | * not usually need a lot of stackspace. |
604 | */ |
603 | */ |
605 | #if CORO_PREFER_PERL_FUNCTIONS |
604 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
712 | #endif |
711 | #endif |
713 | } |
712 | } |
714 | } |
713 | } |
715 | |
714 | |
716 | return rss; |
715 | return rss; |
717 | } |
|
|
718 | |
|
|
719 | /** set stacklevel support **************************************************/ |
|
|
720 | |
|
|
721 | /* we sometimes need to create the effect of pp_slf calling us */ |
|
|
722 | #define SLF_HEAD (void)0 |
|
|
723 | /* we sometimes need to create the effect of leaving via pp_slf */ |
|
|
724 | #define SLF_TAIL slf_tail (aTHX) |
|
|
725 | |
|
|
726 | INLINE void |
|
|
727 | slf_tail (pTHX) |
|
|
728 | { |
|
|
729 | dSP; |
|
|
730 | SV **bot = SP; |
|
|
731 | |
|
|
732 | int gimme = GIMME_V; |
|
|
733 | |
|
|
734 | /* make sure we put something on the stack in scalar context */ |
|
|
735 | if (gimme == G_SCALAR) |
|
|
736 | { |
|
|
737 | if (sp == bot) |
|
|
738 | XPUSHs (&PL_sv_undef); |
|
|
739 | |
|
|
740 | SP = bot + 1; |
|
|
741 | } |
|
|
742 | |
|
|
743 | PUTBACK; |
|
|
744 | } |
716 | } |
745 | |
717 | |
746 | /** coroutine stack handling ************************************************/ |
718 | /** coroutine stack handling ************************************************/ |
747 | |
719 | |
748 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
720 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
… | |
… | |
834 | |
806 | |
835 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
807 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
836 | } |
808 | } |
837 | |
809 | |
838 | static void |
810 | static void |
|
|
811 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
812 | { |
|
|
813 | /* kind of mega-hacky, but works */ |
|
|
814 | ta->next = ta->prev = (struct coro *)ta; |
|
|
815 | } |
|
|
816 | |
|
|
817 | static int |
|
|
818 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
819 | { |
|
|
820 | return 0; |
|
|
821 | } |
|
|
822 | |
|
|
823 | static UNOP coro_setup_op; |
|
|
824 | |
|
|
825 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
839 | coro_setup (pTHX_ struct coro *coro) |
826 | coro_setup (pTHX_ struct coro *coro) |
840 | { |
827 | { |
841 | /* |
828 | /* |
842 | * emulate part of the perl startup here. |
829 | * emulate part of the perl startup here. |
843 | */ |
830 | */ |
… | |
… | |
882 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
869 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
883 | SPAGAIN; |
870 | SPAGAIN; |
884 | } |
871 | } |
885 | |
872 | |
886 | /* this newly created coroutine might be run on an existing cctx which most |
873 | /* this newly created coroutine might be run on an existing cctx which most |
887 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
874 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
888 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
889 | */ |
875 | */ |
890 | SLF_HEAD; |
876 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
877 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
878 | |
|
|
879 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
880 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
881 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
882 | coro_setup_op.op_next = PL_op; |
|
|
883 | |
|
|
884 | PL_op = (OP *)&coro_setup_op; |
|
|
885 | |
|
|
886 | /* copy throw, in case it was set before coro_setup */ |
|
|
887 | coro_throw = coro->throw; |
891 | } |
888 | } |
892 | |
889 | |
893 | static void |
890 | static void |
894 | coro_destruct (pTHX_ struct coro *coro) |
891 | coro_destruct (pTHX_ struct coro *coro) |
895 | { |
892 | { |
… | |
… | |
919 | |
916 | |
920 | SvREFCNT_dec (PL_diehook); |
917 | SvREFCNT_dec (PL_diehook); |
921 | SvREFCNT_dec (PL_warnhook); |
918 | SvREFCNT_dec (PL_warnhook); |
922 | |
919 | |
923 | SvREFCNT_dec (coro->saved_deffh); |
920 | SvREFCNT_dec (coro->saved_deffh); |
924 | SvREFCNT_dec (coro->throw); |
921 | SvREFCNT_dec (coro_throw); |
925 | |
922 | |
926 | coro_destruct_stacks (aTHX); |
923 | coro_destruct_stacks (aTHX); |
927 | } |
924 | } |
928 | |
925 | |
929 | INLINE void |
926 | INLINE void |
… | |
… | |
939 | static int |
936 | static int |
940 | runops_trace (pTHX) |
937 | runops_trace (pTHX) |
941 | { |
938 | { |
942 | COP *oldcop = 0; |
939 | COP *oldcop = 0; |
943 | int oldcxix = -2; |
940 | int oldcxix = -2; |
944 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
941 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
945 | coro_cctx *cctx = coro->cctx; |
942 | coro_cctx *cctx = coro->cctx; |
946 | |
943 | |
947 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
944 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
948 | { |
945 | { |
949 | PERL_ASYNC_CHECK (); |
946 | PERL_ASYNC_CHECK (); |
… | |
… | |
1058 | |
1055 | |
1059 | TAINT_NOT; |
1056 | TAINT_NOT; |
1060 | return 0; |
1057 | return 0; |
1061 | } |
1058 | } |
1062 | |
1059 | |
|
|
1060 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1061 | static struct CoroSLF cctx_ssl_frame; |
|
|
1062 | |
1063 | static void |
1063 | static void |
1064 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1064 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1065 | { |
1065 | { |
1066 | ta->prev = (struct coro *)cctx; |
1066 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1067 | ta->next = 0; |
1067 | ta->next = 0; |
1068 | } |
1068 | } |
1069 | |
1069 | |
1070 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1070 | static int |
1071 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1071 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1072 | /* during execution of a perl program */ |
1072 | { |
1073 | /* also initialises PL_top_env */ |
1073 | *frame = cctx_ssl_frame; |
|
|
1074 | |
|
|
1075 | return 0; |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | /* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ |
1074 | static void NOINLINE |
1079 | static void NOINLINE |
1075 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1080 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1076 | { |
1081 | { |
1077 | dSP; |
|
|
1078 | UNOP myop; |
|
|
1079 | |
|
|
1080 | PL_top_env = &PL_start_env; |
1082 | PL_top_env = &PL_start_env; |
1081 | |
1083 | |
1082 | if (cctx->flags & CC_TRACE) |
1084 | if (cctx->flags & CC_TRACE) |
1083 | PL_runops = runops_trace; |
1085 | PL_runops = runops_trace; |
1084 | |
1086 | |
1085 | Zero (&myop, 1, UNOP); |
1087 | /* we already must be in an SLF call, there is no other valid way |
1086 | myop.op_next = PL_op; |
1088 | * that can lead to creation of a new cctx */ |
1087 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1089 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1090 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1088 | |
1091 | |
1089 | PUSHMARK (SP); |
1092 | cctx_ssl_cctx = cctx; |
1090 | EXTEND (SP, 2); |
1093 | cctx_ssl_frame = slf_frame; |
1091 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1094 | |
1092 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1095 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1093 | PUTBACK; |
1096 | slf_frame.check = slf_check_set_stacklevel; |
1094 | PL_op = (OP *)&myop; |
|
|
1095 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1096 | SPAGAIN; |
|
|
1097 | } |
1097 | } |
1098 | |
1098 | |
1099 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1099 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1100 | INLINE void |
1100 | INLINE void |
1101 | transfer_tail (pTHX) |
1101 | transfer_tail (pTHX) |
1102 | { |
1102 | { |
1103 | struct coro *next = (struct coro *)transfer_next; |
|
|
1104 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1105 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1106 | |
|
|
1107 | free_coro_mortal (aTHX); |
1103 | free_coro_mortal (aTHX); |
1108 | UNLOCK; |
|
|
1109 | |
|
|
1110 | if (expect_false (next->throw)) |
|
|
1111 | { |
|
|
1112 | SV *exception = sv_2mortal (next->throw); |
|
|
1113 | |
|
|
1114 | next->throw = 0; |
|
|
1115 | sv_setsv (ERRSV, exception); |
|
|
1116 | croak (0); |
|
|
1117 | } |
|
|
1118 | } |
1104 | } |
1119 | |
1105 | |
1120 | /* |
1106 | /* |
1121 | * this is a _very_ stripped down perl interpreter ;) |
1107 | * this is a _very_ stripped down perl interpreter ;) |
1122 | */ |
1108 | */ |
… | |
… | |
1129 | # endif |
1115 | # endif |
1130 | #endif |
1116 | #endif |
1131 | { |
1117 | { |
1132 | dTHX; |
1118 | dTHX; |
1133 | |
1119 | |
1134 | /* we are the alternative tail to pp_set_stacklevel */ |
1120 | /* normally we would need to skip the entersub here */ |
1135 | /* so do the same things here */ |
1121 | /* not doing so will re-execute it, which is exactly what we want */ |
1136 | SLF_TAIL; |
|
|
1137 | |
|
|
1138 | /* we now skip the op that did lead to transfer() */ |
|
|
1139 | PL_op = PL_op->op_next; |
1122 | /* PL_nop = PL_nop->op_next */ |
1140 | |
1123 | |
1141 | /* inject a fake subroutine call to cctx_init */ |
1124 | /* inject a fake subroutine call to cctx_init */ |
1142 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1125 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1143 | |
1126 | |
1144 | /* cctx_run is the alternative tail of transfer() */ |
1127 | /* cctx_run is the alternative tail of transfer() */ |
… | |
… | |
1305 | /** coroutine switching *****************************************************/ |
1288 | /** coroutine switching *****************************************************/ |
1306 | |
1289 | |
1307 | static void |
1290 | static void |
1308 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1291 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1309 | { |
1292 | { |
|
|
1293 | /* TODO: throwing up here is considered harmful */ |
|
|
1294 | |
1310 | if (expect_true (prev != next)) |
1295 | if (expect_true (prev != next)) |
1311 | { |
1296 | { |
1312 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1297 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1313 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1298 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1314 | |
1299 | |
1315 | if (expect_false (next->flags & CF_RUNNING)) |
1300 | if (expect_false (next->flags & CF_RUNNING)) |
1316 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1301 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1317 | |
1302 | |
1318 | if (expect_false (next->flags & CF_DESTROYED)) |
1303 | if (expect_false (next->flags & CF_DESTROYED)) |
1319 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1304 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1320 | |
1305 | |
1321 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1306 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1322 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1307 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1323 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1308 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1324 | #endif |
1309 | #endif |
1325 | } |
1310 | } |
1326 | } |
1311 | } |
1327 | |
1312 | |
1328 | /* always use the TRANSFER macro */ |
1313 | /* always use the TRANSFER macro */ |
1329 | static void NOINLINE |
1314 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1330 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1315 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1331 | { |
1316 | { |
1332 | dSTACKLEVEL; |
1317 | dSTACKLEVEL; |
1333 | |
1318 | |
1334 | /* sometimes transfer is only called to set idle_sp */ |
1319 | /* sometimes transfer is only called to set idle_sp */ |
1335 | if (expect_false (!next)) |
1320 | if (expect_false (!next)) |
1336 | { |
1321 | { |
1337 | ((coro_cctx *)prev)->idle_sp = stacklevel; |
1322 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1338 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1323 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1339 | } |
1324 | } |
1340 | else if (expect_true (prev != next)) |
1325 | else if (expect_true (prev != next)) |
1341 | { |
1326 | { |
1342 | coro_cctx *prev__cctx; |
1327 | coro_cctx *prev__cctx; |
… | |
… | |
1349 | prev->flags |= CF_RUNNING; |
1334 | prev->flags |= CF_RUNNING; |
1350 | } |
1335 | } |
1351 | |
1336 | |
1352 | prev->flags &= ~CF_RUNNING; |
1337 | prev->flags &= ~CF_RUNNING; |
1353 | next->flags |= CF_RUNNING; |
1338 | next->flags |= CF_RUNNING; |
1354 | |
|
|
1355 | LOCK; |
|
|
1356 | |
1339 | |
1357 | /* first get rid of the old state */ |
1340 | /* first get rid of the old state */ |
1358 | save_perl (aTHX_ prev); |
1341 | save_perl (aTHX_ prev); |
1359 | |
1342 | |
1360 | if (expect_false (next->flags & CF_NEW)) |
1343 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1369 | |
1352 | |
1370 | prev__cctx = prev->cctx; |
1353 | prev__cctx = prev->cctx; |
1371 | |
1354 | |
1372 | /* possibly untie and reuse the cctx */ |
1355 | /* possibly untie and reuse the cctx */ |
1373 | if (expect_true ( |
1356 | if (expect_true ( |
1374 | prev__cctx->idle_sp == stacklevel |
1357 | prev__cctx->idle_sp == (void *)stacklevel |
1375 | && !(prev__cctx->flags & CC_TRACE) |
1358 | && !(prev__cctx->flags & CC_TRACE) |
1376 | && !force_cctx |
1359 | && !force_cctx |
1377 | )) |
1360 | )) |
1378 | { |
1361 | { |
1379 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1362 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
… | |
… | |
1393 | ++next->usecount; |
1376 | ++next->usecount; |
1394 | |
1377 | |
1395 | if (expect_true (!next->cctx)) |
1378 | if (expect_true (!next->cctx)) |
1396 | next->cctx = cctx_get (aTHX); |
1379 | next->cctx = cctx_get (aTHX); |
1397 | |
1380 | |
1398 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1399 | transfer_next = next; |
|
|
1400 | |
|
|
1401 | if (expect_false (prev__cctx != next->cctx)) |
1381 | if (expect_false (prev__cctx != next->cctx)) |
1402 | { |
1382 | { |
1403 | prev__cctx->top_env = PL_top_env; |
1383 | prev__cctx->top_env = PL_top_env; |
1404 | PL_top_env = next->cctx->top_env; |
1384 | PL_top_env = next->cctx->top_env; |
1405 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1385 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
… | |
… | |
1418 | coro_state_destroy (pTHX_ struct coro *coro) |
1398 | coro_state_destroy (pTHX_ struct coro *coro) |
1419 | { |
1399 | { |
1420 | if (coro->flags & CF_DESTROYED) |
1400 | if (coro->flags & CF_DESTROYED) |
1421 | return 0; |
1401 | return 0; |
1422 | |
1402 | |
|
|
1403 | if (coro->on_destroy) |
|
|
1404 | coro->on_destroy (aTHX_ coro); |
|
|
1405 | |
1423 | coro->flags |= CF_DESTROYED; |
1406 | coro->flags |= CF_DESTROYED; |
1424 | |
1407 | |
1425 | if (coro->flags & CF_READY) |
1408 | if (coro->flags & CF_READY) |
1426 | { |
1409 | { |
1427 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1410 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1428 | /* alternative: look through all ready queues and remove the coro */ |
1411 | /* alternative: look through all ready queues and remove the coro */ |
1429 | LOCK; |
|
|
1430 | --coro_nready; |
1412 | --coro_nready; |
1431 | UNLOCK; |
|
|
1432 | } |
1413 | } |
1433 | else |
1414 | else |
1434 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1415 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1435 | |
1416 | |
1436 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1417 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1437 | { |
1418 | { |
1438 | struct coro temp; |
1419 | struct coro temp; |
1439 | |
1420 | |
1440 | if (coro->flags & CF_RUNNING) |
1421 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1441 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1442 | |
1422 | |
1443 | save_perl (aTHX_ &temp); |
1423 | save_perl (aTHX_ &temp); |
1444 | load_perl (aTHX_ coro); |
1424 | load_perl (aTHX_ coro); |
1445 | |
1425 | |
1446 | coro_destruct (aTHX_ coro); |
1426 | coro_destruct (aTHX_ coro); |
… | |
… | |
1497 | # define MGf_DUP 0 |
1477 | # define MGf_DUP 0 |
1498 | #endif |
1478 | #endif |
1499 | }; |
1479 | }; |
1500 | |
1480 | |
1501 | static void |
1481 | static void |
1502 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1482 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1503 | { |
1483 | { |
1504 | ta->prev = SvSTATE (prev_sv); |
1484 | ta->prev = SvSTATE (prev_sv); |
1505 | ta->next = SvSTATE (next_sv); |
1485 | ta->next = SvSTATE (next_sv); |
1506 | TRANSFER_CHECK (*ta); |
1486 | TRANSFER_CHECK (*ta); |
1507 | } |
1487 | } |
1508 | |
1488 | |
1509 | static void |
1489 | static void |
1510 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1490 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1511 | { |
1491 | { |
1512 | struct transfer_args ta; |
1492 | struct coro_transfer_args ta; |
1513 | |
1493 | |
1514 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1494 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1515 | TRANSFER (ta, 1); |
1495 | TRANSFER (ta, 1); |
1516 | } |
1496 | } |
1517 | |
1497 | |
1518 | /** Coro ********************************************************************/ |
1498 | /** Coro ********************************************************************/ |
1519 | |
1499 | |
1520 | static void |
1500 | INLINE void |
1521 | coro_enq (pTHX_ SV *coro_sv) |
1501 | coro_enq (pTHX_ struct coro *coro) |
1522 | { |
1502 | { |
1523 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1503 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1524 | } |
1504 | } |
1525 | |
1505 | |
1526 | static SV * |
1506 | INLINE SV * |
1527 | coro_deq (pTHX) |
1507 | coro_deq (pTHX) |
1528 | { |
1508 | { |
1529 | int prio; |
1509 | int prio; |
1530 | |
1510 | |
1531 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1511 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1550 | if (coro->flags & CF_READY) |
1530 | if (coro->flags & CF_READY) |
1551 | return 0; |
1531 | return 0; |
1552 | |
1532 | |
1553 | coro->flags |= CF_READY; |
1533 | coro->flags |= CF_READY; |
1554 | |
1534 | |
1555 | LOCK; |
|
|
1556 | |
|
|
1557 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1535 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1558 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1536 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1559 | |
1537 | |
1560 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1538 | coro_enq (aTHX_ coro); |
1561 | ++coro_nready; |
1539 | ++coro_nready; |
1562 | |
1540 | |
1563 | UNLOCK; |
|
|
1564 | |
|
|
1565 | if (sv_hook) |
1541 | if (sv_hook) |
1566 | { |
1542 | { |
1567 | dSP; |
1543 | dSP; |
1568 | |
1544 | |
1569 | ENTER; |
1545 | ENTER; |
1570 | SAVETMPS; |
1546 | SAVETMPS; |
1571 | |
1547 | |
1572 | PUSHMARK (SP); |
1548 | PUSHMARK (SP); |
1573 | PUTBACK; |
1549 | PUTBACK; |
1574 | call_sv (sv_hook, G_DISCARD); |
1550 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1575 | SPAGAIN; |
|
|
1576 | |
1551 | |
1577 | FREETMPS; |
1552 | FREETMPS; |
1578 | LEAVE; |
1553 | LEAVE; |
1579 | } |
1554 | } |
1580 | |
1555 | |
… | |
… | |
1589 | { |
1564 | { |
1590 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1565 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1591 | } |
1566 | } |
1592 | |
1567 | |
1593 | INLINE void |
1568 | INLINE void |
1594 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1569 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1595 | { |
1570 | { |
1596 | SV *prev_sv, *next_sv; |
1571 | SV *prev_sv, *next_sv; |
1597 | |
1572 | |
1598 | for (;;) |
1573 | for (;;) |
1599 | { |
1574 | { |
1600 | LOCK; |
|
|
1601 | next_sv = coro_deq (aTHX); |
1575 | next_sv = coro_deq (aTHX); |
1602 | |
1576 | |
1603 | /* nothing to schedule: call the idle handler */ |
1577 | /* nothing to schedule: call the idle handler */ |
1604 | if (expect_false (!next_sv)) |
1578 | if (expect_false (!next_sv)) |
1605 | { |
1579 | { |
1606 | dSP; |
1580 | dSP; |
1607 | UNLOCK; |
|
|
1608 | |
1581 | |
1609 | ENTER; |
1582 | ENTER; |
1610 | SAVETMPS; |
1583 | SAVETMPS; |
1611 | |
1584 | |
1612 | PUSHMARK (SP); |
1585 | PUSHMARK (SP); |
1613 | PUTBACK; |
1586 | PUTBACK; |
1614 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1587 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1615 | SPAGAIN; |
|
|
1616 | |
1588 | |
1617 | FREETMPS; |
1589 | FREETMPS; |
1618 | LEAVE; |
1590 | LEAVE; |
1619 | continue; |
1591 | continue; |
1620 | } |
1592 | } |
1621 | |
1593 | |
1622 | ta->next = SvSTATE (next_sv); |
1594 | ta->next = SvSTATE_hv (next_sv); |
1623 | |
1595 | |
1624 | /* cannot transfer to destroyed coros, skip and look for next */ |
1596 | /* cannot transfer to destroyed coros, skip and look for next */ |
1625 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1597 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1626 | { |
1598 | { |
1627 | UNLOCK; |
|
|
1628 | SvREFCNT_dec (next_sv); |
1599 | SvREFCNT_dec (next_sv); |
1629 | /* coro_nready has already been taken care of by destroy */ |
1600 | /* coro_nready has already been taken care of by destroy */ |
1630 | continue; |
1601 | continue; |
1631 | } |
1602 | } |
1632 | |
1603 | |
1633 | --coro_nready; |
1604 | --coro_nready; |
1634 | UNLOCK; |
|
|
1635 | break; |
1605 | break; |
1636 | } |
1606 | } |
1637 | |
1607 | |
1638 | /* free this only after the transfer */ |
1608 | /* free this only after the transfer */ |
1639 | prev_sv = SvRV (coro_current); |
1609 | prev_sv = SvRV (coro_current); |
1640 | ta->prev = SvSTATE (prev_sv); |
1610 | ta->prev = SvSTATE_hv (prev_sv); |
1641 | TRANSFER_CHECK (*ta); |
1611 | TRANSFER_CHECK (*ta); |
1642 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1612 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1643 | ta->next->flags &= ~CF_READY; |
1613 | ta->next->flags &= ~CF_READY; |
1644 | SvRV_set (coro_current, next_sv); |
1614 | SvRV_set (coro_current, next_sv); |
1645 | |
1615 | |
1646 | LOCK; |
|
|
1647 | free_coro_mortal (aTHX); |
1616 | free_coro_mortal (aTHX); |
1648 | coro_mortal = prev_sv; |
1617 | coro_mortal = prev_sv; |
1649 | UNLOCK; |
|
|
1650 | } |
1618 | } |
1651 | |
1619 | |
1652 | INLINE void |
1620 | INLINE void |
1653 | prepare_cede (pTHX_ struct transfer_args *ta) |
1621 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1654 | { |
1622 | { |
1655 | api_ready (aTHX_ coro_current); |
1623 | api_ready (aTHX_ coro_current); |
1656 | prepare_schedule (aTHX_ ta); |
1624 | prepare_schedule (aTHX_ ta); |
1657 | } |
1625 | } |
1658 | |
1626 | |
1659 | static void |
1627 | INLINE void |
1660 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1628 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1661 | { |
1629 | { |
1662 | SV *prev = SvRV (coro_current); |
1630 | SV *prev = SvRV (coro_current); |
1663 | |
1631 | |
1664 | if (coro_nready) |
1632 | if (coro_nready) |
1665 | { |
1633 | { |
1666 | prepare_schedule (aTHX_ ta); |
1634 | prepare_schedule (aTHX_ ta); |
1667 | api_ready (aTHX_ prev); |
1635 | api_ready (aTHX_ prev); |
1668 | } |
1636 | } |
1669 | else |
1637 | else |
1670 | ta->prev = ta->next = SvSTATE (prev); |
1638 | prepare_nop (aTHX_ ta); |
1671 | } |
1639 | } |
1672 | |
1640 | |
1673 | static void |
1641 | static void |
1674 | api_schedule (pTHX) |
1642 | api_schedule (pTHX) |
1675 | { |
1643 | { |
1676 | struct transfer_args ta; |
1644 | struct coro_transfer_args ta; |
1677 | |
1645 | |
1678 | prepare_schedule (aTHX_ &ta); |
1646 | prepare_schedule (aTHX_ &ta); |
1679 | TRANSFER (ta, 1); |
1647 | TRANSFER (ta, 1); |
1680 | } |
1648 | } |
1681 | |
1649 | |
1682 | static int |
1650 | static int |
1683 | api_cede (pTHX) |
1651 | api_cede (pTHX) |
1684 | { |
1652 | { |
1685 | struct transfer_args ta; |
1653 | struct coro_transfer_args ta; |
1686 | |
1654 | |
1687 | prepare_cede (aTHX_ &ta); |
1655 | prepare_cede (aTHX_ &ta); |
1688 | |
1656 | |
1689 | if (expect_true (ta.prev != ta.next)) |
1657 | if (expect_true (ta.prev != ta.next)) |
1690 | { |
1658 | { |
… | |
… | |
1698 | static int |
1666 | static int |
1699 | api_cede_notself (pTHX) |
1667 | api_cede_notself (pTHX) |
1700 | { |
1668 | { |
1701 | if (coro_nready) |
1669 | if (coro_nready) |
1702 | { |
1670 | { |
1703 | struct transfer_args ta; |
1671 | struct coro_transfer_args ta; |
1704 | |
1672 | |
1705 | prepare_cede_notself (aTHX_ &ta); |
1673 | prepare_cede_notself (aTHX_ &ta); |
1706 | TRANSFER (ta, 1); |
1674 | TRANSFER (ta, 1); |
1707 | return 1; |
1675 | return 1; |
1708 | } |
1676 | } |
… | |
… | |
1718 | if (flags & CC_TRACE) |
1686 | if (flags & CC_TRACE) |
1719 | { |
1687 | { |
1720 | if (!coro->cctx) |
1688 | if (!coro->cctx) |
1721 | coro->cctx = cctx_new_run (); |
1689 | coro->cctx = cctx_new_run (); |
1722 | else if (!(coro->cctx->flags & CC_TRACE)) |
1690 | else if (!(coro->cctx->flags & CC_TRACE)) |
1723 | croak ("cannot enable tracing on coroutine with custom stack"); |
1691 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1724 | |
1692 | |
1725 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1693 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1726 | } |
1694 | } |
1727 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1695 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1728 | { |
1696 | { |
… | |
… | |
1733 | else |
1701 | else |
1734 | coro->slot->runops = RUNOPS_DEFAULT; |
1702 | coro->slot->runops = RUNOPS_DEFAULT; |
1735 | } |
1703 | } |
1736 | } |
1704 | } |
1737 | |
1705 | |
1738 | #if 0 |
1706 | /*****************************************************************************/ |
|
|
1707 | /* schedule-like-function opcode (SLF) */ |
|
|
1708 | |
|
|
1709 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1710 | static const CV *slf_cv; |
|
|
1711 | static SV **slf_argv; |
|
|
1712 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1713 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1714 | |
|
|
1715 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1716 | /* recreate the stack frame as perl will on following calls */ |
|
|
1717 | /* since entersub cleared the stack */ |
|
|
1718 | static OP * |
|
|
1719 | pp_restore (pTHX) |
|
|
1720 | { |
|
|
1721 | int i; |
|
|
1722 | SV **SP = PL_stack_base + slf_ax; |
|
|
1723 | |
|
|
1724 | PUSHMARK (SP); |
|
|
1725 | |
|
|
1726 | EXTEND (SP, slf_argc + 1); |
|
|
1727 | |
|
|
1728 | for (i = 0; i < slf_argc; ++i) |
|
|
1729 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1730 | |
|
|
1731 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1732 | |
|
|
1733 | RETURNOP (slf_restore.op_first); |
|
|
1734 | } |
|
|
1735 | |
1739 | static int |
1736 | static void |
1740 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1737 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
1741 | { |
1738 | { |
1742 | AV *padlist; |
1739 | SV **arg = (SV **)slf_frame.data; |
1743 | AV *av = (AV *)mg->mg_obj; |
|
|
1744 | |
1740 | |
1745 | abort (); |
1741 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
1746 | |
|
|
1747 | return 0; |
|
|
1748 | } |
1742 | } |
1749 | |
1743 | |
1750 | static MGVTBL coro_gensub_vtbl = { |
1744 | static void |
1751 | 0, 0, 0, 0, |
1745 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1752 | coro_gensub_free |
1746 | { |
1753 | }; |
1747 | if (items != 2) |
1754 | #endif |
1748 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1749 | |
|
|
1750 | frame->prepare = slf_prepare_transfer; |
|
|
1751 | frame->check = slf_check_nop; |
|
|
1752 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | static void |
|
|
1756 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1757 | { |
|
|
1758 | frame->prepare = prepare_schedule; |
|
|
1759 | frame->check = slf_check_nop; |
|
|
1760 | } |
|
|
1761 | |
|
|
1762 | static void |
|
|
1763 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1764 | { |
|
|
1765 | frame->prepare = prepare_cede; |
|
|
1766 | frame->check = slf_check_nop; |
|
|
1767 | } |
|
|
1768 | |
|
|
1769 | static void |
|
|
1770 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1771 | { |
|
|
1772 | frame->prepare = prepare_cede_notself; |
|
|
1773 | frame->check = slf_check_nop; |
|
|
1774 | } |
|
|
1775 | |
|
|
1776 | /* |
|
|
1777 | * these not obviously related functions are all rolled into one |
|
|
1778 | * function to increase chances that they all will call transfer with the same |
|
|
1779 | * stack offset |
|
|
1780 | * SLF stands for "schedule-like-function". |
|
|
1781 | */ |
|
|
1782 | static OP * |
|
|
1783 | pp_slf (pTHX) |
|
|
1784 | { |
|
|
1785 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1786 | |
|
|
1787 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1788 | /* the latter happens when a new coro has been started */ |
|
|
1789 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1790 | if (expect_true (!slf_frame.prepare)) |
|
|
1791 | { |
|
|
1792 | /* first iteration */ |
|
|
1793 | dSP; |
|
|
1794 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1795 | int items = SP - arg; /* args without function object */ |
|
|
1796 | SV *gv = *sp; |
|
|
1797 | |
|
|
1798 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1799 | /* for us, divert to the real entersub */ |
|
|
1800 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1801 | || !GvCV (gv) |
|
|
1802 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1803 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1804 | |
|
|
1805 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1806 | { |
|
|
1807 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1808 | AV *av = GvAV (PL_defgv); |
|
|
1809 | arg = AvARRAY (av); |
|
|
1810 | items = AvFILLp (av) + 1; |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1814 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1815 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1816 | |
|
|
1817 | /* pop args */ |
|
|
1818 | SP = PL_stack_base + POPMARK; |
|
|
1819 | |
|
|
1820 | PUTBACK; |
|
|
1821 | } |
|
|
1822 | |
|
|
1823 | /* now that we have a slf_frame, interpret it! */ |
|
|
1824 | /* we use a callback system not to make the code needlessly */ |
|
|
1825 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1826 | |
|
|
1827 | do |
|
|
1828 | { |
|
|
1829 | struct coro_transfer_args ta; |
|
|
1830 | |
|
|
1831 | slf_frame.prepare (aTHX_ &ta); |
|
|
1832 | TRANSFER (ta, 0); |
|
|
1833 | |
|
|
1834 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1835 | } |
|
|
1836 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1837 | |
|
|
1838 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1839 | |
|
|
1840 | /* return value handling - mostly like entersub */ |
|
|
1841 | /* make sure we put something on the stack in scalar context */ |
|
|
1842 | if (GIMME_V == G_SCALAR) |
|
|
1843 | { |
|
|
1844 | dSP; |
|
|
1845 | SV **bot = PL_stack_base + checkmark; |
|
|
1846 | |
|
|
1847 | if (sp == bot) /* too few, push undef */ |
|
|
1848 | bot [1] = &PL_sv_undef; |
|
|
1849 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
1850 | bot [1] = *sp; |
|
|
1851 | |
|
|
1852 | SP = bot + 1; |
|
|
1853 | |
|
|
1854 | PUTBACK; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | /* exception handling */ |
|
|
1858 | if (expect_false (coro_throw)) |
|
|
1859 | { |
|
|
1860 | SV *exception = sv_2mortal (coro_throw); |
|
|
1861 | |
|
|
1862 | coro_throw = 0; |
|
|
1863 | sv_setsv (ERRSV, exception); |
|
|
1864 | croak (0); |
|
|
1865 | } |
|
|
1866 | |
|
|
1867 | return NORMAL; |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | static void |
|
|
1871 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1872 | { |
|
|
1873 | int i; |
|
|
1874 | SV **arg = PL_stack_base + ax; |
|
|
1875 | int items = PL_stack_sp - arg + 1; |
|
|
1876 | |
|
|
1877 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1878 | |
|
|
1879 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1880 | && PL_op->op_ppaddr != pp_slf) |
|
|
1881 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1882 | |
|
|
1883 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1884 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1885 | slf_cv = cv; |
|
|
1886 | |
|
|
1887 | /* we patch the op, and then re-run the whole call */ |
|
|
1888 | /* we have to put the same argument on the stack for this to work */ |
|
|
1889 | /* and this will be done by pp_restore */ |
|
|
1890 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1891 | slf_restore.op_type = OP_CUSTOM; |
|
|
1892 | slf_restore.op_ppaddr = pp_restore; |
|
|
1893 | slf_restore.op_first = PL_op; |
|
|
1894 | |
|
|
1895 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1896 | |
|
|
1897 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1898 | { |
|
|
1899 | if (items > slf_arga) |
|
|
1900 | { |
|
|
1901 | slf_arga = items; |
|
|
1902 | free (slf_argv); |
|
|
1903 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | slf_argc = items; |
|
|
1907 | |
|
|
1908 | for (i = 0; i < items; ++i) |
|
|
1909 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1910 | } |
|
|
1911 | else |
|
|
1912 | slf_argc = 0; |
|
|
1913 | |
|
|
1914 | PL_op->op_ppaddr = pp_slf; |
|
|
1915 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1916 | |
|
|
1917 | PL_op = (OP *)&slf_restore; |
|
|
1918 | } |
1755 | |
1919 | |
1756 | /*****************************************************************************/ |
1920 | /*****************************************************************************/ |
1757 | /* PerlIO::cede */ |
1921 | /* PerlIO::cede */ |
1758 | |
1922 | |
1759 | typedef struct |
1923 | typedef struct |
… | |
… | |
1827 | PerlIOBuf_get_cnt, |
1991 | PerlIOBuf_get_cnt, |
1828 | PerlIOBuf_set_ptrcnt, |
1992 | PerlIOBuf_set_ptrcnt, |
1829 | }; |
1993 | }; |
1830 | |
1994 | |
1831 | /*****************************************************************************/ |
1995 | /*****************************************************************************/ |
|
|
1996 | /* Coro::Semaphore */ |
1832 | |
1997 | |
1833 | static const CV *slf_cv; /* for quick consistency check */ |
1998 | static void |
|
|
1999 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2000 | { |
|
|
2001 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2002 | IV count = SvIVX (count_sv); |
1834 | |
2003 | |
1835 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
2004 | count += adjust; |
1836 | static SV *slf_arg0; |
2005 | SvIVX (count_sv) = count; |
1837 | static SV *slf_arg1; |
|
|
1838 | |
2006 | |
1839 | /* this restores the stack in the case we patched the entersub, to */ |
2007 | /* now wake up as many waiters as are expected to lock */ |
1840 | /* recreate the stack frame as perl will on following calls */ |
2008 | while (count > 0 && AvFILLp (av) > 0) |
1841 | /* since entersub cleared the stack */ |
2009 | { |
|
|
2010 | SV *cb; |
|
|
2011 | |
|
|
2012 | /* swap first two elements so we can shift a waiter */ |
|
|
2013 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2014 | AvARRAY (av)[1] = count_sv; |
|
|
2015 | cb = av_shift (av); |
|
|
2016 | |
|
|
2017 | if (SvOBJECT (cb)) |
|
|
2018 | api_ready (aTHX_ cb); |
|
|
2019 | else |
|
|
2020 | croak ("callbacks not yet supported"); |
|
|
2021 | |
|
|
2022 | SvREFCNT_dec (cb); |
|
|
2023 | |
|
|
2024 | --count; |
|
|
2025 | } |
|
|
2026 | } |
|
|
2027 | |
|
|
2028 | static void |
|
|
2029 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2030 | { |
|
|
2031 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2032 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2033 | } |
|
|
2034 | |
|
|
2035 | static int |
|
|
2036 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2037 | { |
|
|
2038 | AV *av = (AV *)frame->data; |
|
|
2039 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2040 | |
|
|
2041 | if (SvIVX (count_sv) > 0) |
|
|
2042 | { |
|
|
2043 | SvSTATE_current->on_destroy = 0; |
|
|
2044 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2045 | return 0; |
|
|
2046 | } |
|
|
2047 | else |
|
|
2048 | { |
|
|
2049 | int i; |
|
|
2050 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2051 | /* waiters list and only add us if we aren't in there already */ |
|
|
2052 | /* this avoids some degenerate memory usage cases */ |
|
|
2053 | |
|
|
2054 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2055 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2056 | return 1; |
|
|
2057 | |
|
|
2058 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2059 | return 1; |
|
|
2060 | } |
|
|
2061 | } |
|
|
2062 | |
|
|
2063 | static void |
|
|
2064 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2065 | { |
|
|
2066 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2067 | |
|
|
2068 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2069 | { |
|
|
2070 | frame->data = (void *)av; |
|
|
2071 | frame->prepare = prepare_nop; |
|
|
2072 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2073 | } |
|
|
2074 | else |
|
|
2075 | { |
|
|
2076 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2077 | |
|
|
2078 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2079 | frame->prepare = prepare_schedule; |
|
|
2080 | |
|
|
2081 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2082 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2083 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2084 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2085 | } |
|
|
2086 | |
|
|
2087 | frame->check = slf_check_semaphore_down; |
|
|
2088 | |
|
|
2089 | } |
|
|
2090 | |
|
|
2091 | /*****************************************************************************/ |
|
|
2092 | /* gensub: simple closure generation utility */ |
|
|
2093 | |
|
|
2094 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2095 | |
|
|
2096 | /* create a closure from XS, returns a code reference */ |
|
|
2097 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2098 | /* the callback must use dXSARGS/XSRETURN */ |
1842 | static OP * |
2099 | static SV * |
1843 | pp_restore (pTHX) |
2100 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
1844 | { |
2101 | { |
1845 | dSP; |
2102 | CV *cv = (CV *)newSV (0); |
1846 | |
2103 | |
1847 | PUSHMARK (SP); |
2104 | sv_upgrade ((SV *)cv, SVt_PVCV); |
1848 | |
2105 | |
1849 | EXTEND (SP, 3); |
2106 | CvANON_on (cv); |
1850 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
2107 | CvISXSUB_on (cv); |
1851 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
2108 | CvXSUB (cv) = xsub; |
1852 | PUSHs ((SV *)CvGV (slf_cv)); |
2109 | GENSUB_ARG = arg; |
1853 | |
2110 | |
1854 | RETURNOP (slf_restore.op_first); |
2111 | return newRV_noinc ((SV *)cv); |
1855 | } |
2112 | } |
1856 | |
2113 | |
1857 | #define OPpENTERSUB_SLF 15 /* the part of op_private entersub hopefully doesn't use */ |
2114 | /*****************************************************************************/ |
|
|
2115 | /* Coro::AIO */ |
1858 | |
2116 | |
1859 | enum { |
2117 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
1860 | CORO_SLF_CUSTOM = 0, |
2118 | |
1861 | CORO_SLF_SET_STACKLEVEL = 1, |
2119 | /* helper storage struct */ |
1862 | CORO_SLF_TRANSFER = 2 |
2120 | struct io_state |
|
|
2121 | { |
|
|
2122 | int errorno; |
|
|
2123 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2124 | int laststatval; |
|
|
2125 | Stat_t statcache; |
1863 | }; |
2126 | }; |
1864 | |
2127 | |
1865 | /* declare prototype */ |
2128 | static void |
1866 | XS(XS_Coro__State__set_stacklevel); |
2129 | coro_aio_callback (pTHX_ CV *cv) |
1867 | |
|
|
1868 | /* |
|
|
1869 | * these not obviously related functions are all rolled into one |
|
|
1870 | * function to increase chances that they all will call transfer with the same |
|
|
1871 | * stack offset |
|
|
1872 | * SLF stands for "schedule-like-function". |
|
|
1873 | */ |
|
|
1874 | static OP * |
|
|
1875 | pp_slf (pTHX) |
|
|
1876 | { |
2130 | { |
|
|
2131 | dXSARGS; |
|
|
2132 | AV *state = (AV *)GENSUB_ARG; |
|
|
2133 | SV *coro = av_pop (state); |
|
|
2134 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2135 | |
|
|
2136 | av_extend (state, items); |
|
|
2137 | |
|
|
2138 | sv_upgrade (data_sv, SVt_PV); |
|
|
2139 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2140 | SvPOK_only (data_sv); |
|
|
2141 | |
|
|
2142 | { |
|
|
2143 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2144 | |
|
|
2145 | data->errorno = errno; |
|
|
2146 | data->laststype = PL_laststype; |
|
|
2147 | data->laststatval = PL_laststatval; |
|
|
2148 | data->statcache = PL_statcache; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2152 | { |
|
|
2153 | int i; |
|
|
2154 | |
|
|
2155 | for (i = 0; i < items; ++i) |
|
|
2156 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2157 | } |
|
|
2158 | |
|
|
2159 | av_push (state, data_sv); |
|
|
2160 | |
|
|
2161 | api_ready (aTHX_ coro); |
|
|
2162 | SvREFCNT_dec (coro); |
|
|
2163 | SvREFCNT_dec ((AV *)state); |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | static int |
|
|
2167 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2168 | { |
|
|
2169 | AV *state = (AV *)frame->data; |
|
|
2170 | |
|
|
2171 | /* one element that is an RV? repeat! */ |
|
|
2172 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2173 | return 1; |
|
|
2174 | |
|
|
2175 | /* restore status */ |
|
|
2176 | { |
|
|
2177 | SV *data_sv = av_pop (state); |
|
|
2178 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2179 | |
|
|
2180 | errno = data->errorno; |
|
|
2181 | PL_laststype = data->laststype; |
|
|
2182 | PL_laststatval = data->laststatval; |
|
|
2183 | PL_statcache = data->statcache; |
|
|
2184 | |
|
|
2185 | SvREFCNT_dec (data_sv); |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | /* push result values */ |
|
|
2189 | { |
1877 | dSP; |
2190 | dSP; |
1878 | struct transfer_args ta; |
2191 | int i; |
1879 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1880 | int items = SP - arg; /* args without function object */ |
|
|
1881 | int ix = PL_op->op_private & OPpENTERSUB_SLF; |
|
|
1882 | struct CoroSLF *slf = 0; |
|
|
1883 | SV *gv = *sp; |
|
|
1884 | |
2192 | |
1885 | /* do a quick consistency check on the "function" object, and if it isn't */ |
2193 | EXTEND (SP, AvFILLp (state) + 1); |
1886 | /* for us, divert to the real entersub */ |
2194 | for (i = 0; i <= AvFILLp (state); ++i) |
1887 | if (SvTYPE (gv) != SVt_PVGV || CvXSUB (GvCV (gv)) != XS_Coro__State__set_stacklevel) |
2195 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
1888 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1889 | |
2196 | |
1890 | /* pop args */ |
|
|
1891 | SP = PL_stack_base + POPMARK; |
|
|
1892 | |
|
|
1893 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1894 | { |
|
|
1895 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1896 | AV *av = GvAV (PL_defgv); |
|
|
1897 | arg = AvARRAY (av); |
|
|
1898 | items = AvFILLp (av) + 1; |
|
|
1899 | } |
|
|
1900 | |
|
|
1901 | PUTBACK; |
2197 | PUTBACK; |
|
|
2198 | } |
1902 | |
2199 | |
1903 | if (!ix) |
2200 | return 0; |
1904 | { |
2201 | } |
1905 | slf = (struct CoroSLF *)CvXSUBANY (GvCV (gv)).any_ptr; |
2202 | |
1906 | ix = slf->prepare (aTHX_ arg, items); |
2203 | static void |
|
|
2204 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2205 | { |
|
|
2206 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2207 | SV *coro_hv = SvRV (coro_current); |
|
|
2208 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2209 | |
|
|
2210 | /* put our coroutine id on the state arg */ |
|
|
2211 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2212 | |
|
|
2213 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2214 | if (coro->prio) |
1907 | } |
2215 | { |
|
|
2216 | dSP; |
1908 | |
2217 | |
1909 | switch (ix) |
2218 | static SV *prio_cv; |
|
|
2219 | static SV *prio_sv; |
|
|
2220 | |
|
|
2221 | if (expect_false (!prio_cv)) |
|
|
2222 | { |
|
|
2223 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2224 | prio_sv = newSViv (0); |
|
|
2225 | } |
|
|
2226 | |
|
|
2227 | PUSHMARK (SP); |
|
|
2228 | sv_setiv (prio_sv, coro->prio); |
|
|
2229 | XPUSHs (prio_sv); |
|
|
2230 | |
|
|
2231 | PUTBACK; |
|
|
2232 | call_sv (prio_cv, G_VOID | G_DISCARD); |
1910 | { |
2233 | } |
1911 | case CORO_SLF_SET_STACKLEVEL: |
|
|
1912 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
|
|
1913 | break; |
|
|
1914 | |
2234 | |
1915 | case CORO_SLF_TRANSFER: |
2235 | /* now call the original request */ |
1916 | if (items != 2) |
2236 | { |
1917 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
2237 | dSP; |
|
|
2238 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2239 | int i; |
1918 | |
2240 | |
1919 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
2241 | PUSHMARK (SP); |
1920 | break; |
|
|
1921 | |
2242 | |
1922 | case CORO_SLF_SCHEDULE: |
2243 | /* first push all args to the stack */ |
1923 | prepare_schedule (aTHX_ &ta); |
2244 | EXTEND (SP, items + 1); |
1924 | break; |
|
|
1925 | |
2245 | |
1926 | case CORO_SLF_CEDE: |
2246 | for (i = 0; i < items; ++i) |
1927 | prepare_cede (aTHX_ &ta); |
2247 | PUSHs (arg [i]); |
1928 | break; |
|
|
1929 | |
2248 | |
1930 | case CORO_SLF_CEDE_NOTSELF: |
2249 | /* now push the callback closure */ |
1931 | prepare_cede_notself (aTHX_ &ta); |
2250 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
1932 | break; |
|
|
1933 | |
2251 | |
1934 | default: |
2252 | /* now call the AIO function - we assume our request is uncancelable */ |
1935 | abort (); |
|
|
1936 | } |
|
|
1937 | |
|
|
1938 | do |
|
|
1939 | TRANSFER (ta, 0); |
|
|
1940 | while (slf && slf->check (aTHX)); |
|
|
1941 | |
|
|
1942 | SPAGAIN; |
|
|
1943 | |
|
|
1944 | PUTBACK; |
2253 | PUTBACK; |
1945 | SLF_TAIL; |
2254 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
1946 | SPAGAIN; |
2255 | } |
1947 | RETURN; |
|
|
1948 | } |
|
|
1949 | |
2256 | |
1950 | static void |
2257 | /* now that the requets is going, we loop toll we have a result */ |
1951 | coro_slf_patch (pTHX_ CV *cv, int ix, SV **args, int items) |
2258 | frame->data = (void *)state; |
1952 | { |
2259 | frame->prepare = prepare_schedule; |
1953 | assert (("FATAL: SLF call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_slf)); |
2260 | frame->check = slf_check_aio_req; |
1954 | |
|
|
1955 | assert (("FATAL: SLF call with illegal CV value", CvGV (cv))); |
|
|
1956 | slf_cv = cv; |
|
|
1957 | |
|
|
1958 | /* we patch the op, and then re-run the whole call */ |
|
|
1959 | /* we have to put the same argument on the stack for this to work */ |
|
|
1960 | /* and this will be done by pp_restore */ |
|
|
1961 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1962 | slf_restore.op_type = OP_NULL; |
|
|
1963 | slf_restore.op_ppaddr = pp_restore; |
|
|
1964 | slf_restore.op_first = PL_op; |
|
|
1965 | |
|
|
1966 | slf_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0; |
|
|
1967 | slf_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0; |
|
|
1968 | |
|
|
1969 | PL_op->op_ppaddr = pp_slf; |
|
|
1970 | PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SLF | ix; /* we potentially share our private flags with entersub */ |
|
|
1971 | |
|
|
1972 | PL_op = (OP *)&slf_restore; |
|
|
1973 | } |
2261 | } |
1974 | |
2262 | |
1975 | static void |
2263 | static void |
1976 | api_execute_slf (pTHX_ CV *cv, const struct CoroSLF *slf, SV **arg, int items) |
2264 | coro_aio_req_xs (pTHX_ CV *cv) |
1977 | { |
2265 | { |
1978 | CvXSUBANY (cv).any_ptr = (void *)slf; |
2266 | dXSARGS; |
1979 | coro_slf_patch (aTHX_ cv, CORO_SLF_CUSTOM, arg, items); |
2267 | |
|
|
2268 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2269 | |
|
|
2270 | XSRETURN_EMPTY; |
1980 | } |
2271 | } |
|
|
2272 | |
|
|
2273 | /*****************************************************************************/ |
1981 | |
2274 | |
1982 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2275 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1983 | |
2276 | |
1984 | PROTOTYPES: DISABLE |
2277 | PROTOTYPES: DISABLE |
1985 | |
2278 | |
1986 | BOOT: |
2279 | BOOT: |
1987 | { |
2280 | { |
1988 | #ifdef USE_ITHREADS |
2281 | #ifdef USE_ITHREADS |
1989 | MUTEX_INIT (&coro_lock); |
|
|
1990 | # if CORO_PTHREAD |
2282 | # if CORO_PTHREAD |
1991 | coro_thx = PERL_GET_CONTEXT; |
2283 | coro_thx = PERL_GET_CONTEXT; |
1992 | # endif |
2284 | # endif |
1993 | #endif |
2285 | #endif |
1994 | BOOT_PAGESIZE; |
2286 | BOOT_PAGESIZE; |
… | |
… | |
2015 | main_top_env = PL_top_env; |
2307 | main_top_env = PL_top_env; |
2016 | |
2308 | |
2017 | while (main_top_env->je_prev) |
2309 | while (main_top_env->je_prev) |
2018 | main_top_env = main_top_env->je_prev; |
2310 | main_top_env = main_top_env->je_prev; |
2019 | |
2311 | |
|
|
2312 | { |
|
|
2313 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2314 | |
|
|
2315 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2316 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2317 | newSVpv ("coro_slf", 0), 0); |
|
|
2318 | |
|
|
2319 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2320 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2321 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2322 | } |
|
|
2323 | |
2020 | coroapi.ver = CORO_API_VERSION; |
2324 | coroapi.ver = CORO_API_VERSION; |
2021 | coroapi.rev = CORO_API_REVISION; |
2325 | coroapi.rev = CORO_API_REVISION; |
|
|
2326 | |
2022 | coroapi.transfer = api_transfer; |
2327 | coroapi.transfer = api_transfer; |
|
|
2328 | |
|
|
2329 | coroapi.sv_state = SvSTATE_; |
2023 | coroapi.execute_slf = api_execute_slf; |
2330 | coroapi.execute_slf = api_execute_slf; |
|
|
2331 | coroapi.prepare_nop = prepare_nop; |
|
|
2332 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2333 | coroapi.prepare_cede = prepare_cede; |
|
|
2334 | coroapi.prepare_cede_notself = prepare_cede_notself; |
2024 | |
2335 | |
2025 | { |
2336 | { |
2026 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2337 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2027 | |
2338 | |
2028 | if (!svp) croak ("Time::HiRes is required"); |
2339 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
2062 | } |
2373 | } |
2063 | OUTPUT: |
2374 | OUTPUT: |
2064 | RETVAL |
2375 | RETVAL |
2065 | |
2376 | |
2066 | void |
2377 | void |
2067 | _set_stacklevel (...) |
2378 | transfer (...) |
2068 | ALIAS: |
2379 | PROTOTYPE: $$ |
2069 | _set_stacklevel = CORO_SLF_SET_STACKLEVEL |
2380 | CODE: |
2070 | Coro::State::transfer = CORO_SLF_TRANSFER |
2381 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2071 | Coro::schedule = CORO_SLF_SCHEDULE |
|
|
2072 | Coro::cede = CORO_SLF_CEDE |
|
|
2073 | Coro::cede_notself = CORO_SLF_CEDE_NOTSELF |
|
|
2074 | CODE: |
|
|
2075 | coro_slf_patch (aTHX_ cv, ix, &ST (0), items); |
|
|
2076 | |
2382 | |
2077 | bool |
2383 | bool |
2078 | _destroy (SV *coro_sv) |
2384 | _destroy (SV *coro_sv) |
2079 | CODE: |
2385 | CODE: |
2080 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2386 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2087 | CODE: |
2393 | CODE: |
2088 | _exit (code); |
2394 | _exit (code); |
2089 | |
2395 | |
2090 | int |
2396 | int |
2091 | cctx_stacksize (int new_stacksize = 0) |
2397 | cctx_stacksize (int new_stacksize = 0) |
|
|
2398 | PROTOTYPE: ;$ |
2092 | CODE: |
2399 | CODE: |
2093 | RETVAL = cctx_stacksize; |
2400 | RETVAL = cctx_stacksize; |
2094 | if (new_stacksize) |
2401 | if (new_stacksize) |
2095 | { |
2402 | { |
2096 | cctx_stacksize = new_stacksize; |
2403 | cctx_stacksize = new_stacksize; |
… | |
… | |
2099 | OUTPUT: |
2406 | OUTPUT: |
2100 | RETVAL |
2407 | RETVAL |
2101 | |
2408 | |
2102 | int |
2409 | int |
2103 | cctx_max_idle (int max_idle = 0) |
2410 | cctx_max_idle (int max_idle = 0) |
|
|
2411 | PROTOTYPE: ;$ |
2104 | CODE: |
2412 | CODE: |
2105 | RETVAL = cctx_max_idle; |
2413 | RETVAL = cctx_max_idle; |
2106 | if (max_idle > 1) |
2414 | if (max_idle > 1) |
2107 | cctx_max_idle = max_idle; |
2415 | cctx_max_idle = max_idle; |
2108 | OUTPUT: |
2416 | OUTPUT: |
2109 | RETVAL |
2417 | RETVAL |
2110 | |
2418 | |
2111 | int |
2419 | int |
2112 | cctx_count () |
2420 | cctx_count () |
|
|
2421 | PROTOTYPE: |
2113 | CODE: |
2422 | CODE: |
2114 | RETVAL = cctx_count; |
2423 | RETVAL = cctx_count; |
2115 | OUTPUT: |
2424 | OUTPUT: |
2116 | RETVAL |
2425 | RETVAL |
2117 | |
2426 | |
2118 | int |
2427 | int |
2119 | cctx_idle () |
2428 | cctx_idle () |
|
|
2429 | PROTOTYPE: |
2120 | CODE: |
2430 | CODE: |
2121 | RETVAL = cctx_idle; |
2431 | RETVAL = cctx_idle; |
2122 | OUTPUT: |
2432 | OUTPUT: |
2123 | RETVAL |
2433 | RETVAL |
2124 | |
2434 | |
2125 | void |
2435 | void |
2126 | list () |
2436 | list () |
|
|
2437 | PROTOTYPE: |
2127 | PPCODE: |
2438 | PPCODE: |
2128 | { |
2439 | { |
2129 | struct coro *coro; |
2440 | struct coro *coro; |
2130 | for (coro = coro_first; coro; coro = coro->next) |
2441 | for (coro = coro_first; coro; coro = coro->next) |
2131 | if (coro->hv) |
2442 | if (coro->hv) |
… | |
… | |
2193 | |
2504 | |
2194 | void |
2505 | void |
2195 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2506 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2196 | PROTOTYPE: $;$ |
2507 | PROTOTYPE: $;$ |
2197 | CODE: |
2508 | CODE: |
|
|
2509 | { |
|
|
2510 | struct coro *current = SvSTATE_current; |
|
|
2511 | SV **throwp = self == current ? &coro_throw : &self->throw; |
2198 | SvREFCNT_dec (self->throw); |
2512 | SvREFCNT_dec (*throwp); |
2199 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2513 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2514 | } |
2200 | |
2515 | |
2201 | void |
2516 | void |
2202 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2517 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2518 | PROTOTYPE: $;$ |
2203 | C_ARGS: aTHX_ coro, flags |
2519 | C_ARGS: aTHX_ coro, flags |
2204 | |
2520 | |
2205 | SV * |
2521 | SV * |
2206 | has_cctx (Coro::State coro) |
2522 | has_cctx (Coro::State coro) |
2207 | PROTOTYPE: $ |
2523 | PROTOTYPE: $ |
… | |
… | |
2232 | OUTPUT: |
2548 | OUTPUT: |
2233 | RETVAL |
2549 | RETVAL |
2234 | |
2550 | |
2235 | void |
2551 | void |
2236 | force_cctx () |
2552 | force_cctx () |
|
|
2553 | PROTOTYPE: |
2237 | CODE: |
2554 | CODE: |
2238 | struct coro *coro = SvSTATE (coro_current); |
|
|
2239 | coro->cctx->idle_sp = 0; |
2555 | SvSTATE_current->cctx->idle_sp = 0; |
2240 | |
2556 | |
2241 | void |
2557 | void |
2242 | swap_defsv (Coro::State self) |
2558 | swap_defsv (Coro::State self) |
2243 | PROTOTYPE: $ |
2559 | PROTOTYPE: $ |
2244 | ALIAS: |
2560 | ALIAS: |
2245 | swap_defav = 1 |
2561 | swap_defav = 1 |
2246 | CODE: |
2562 | CODE: |
2247 | if (!self->slot) |
2563 | if (!self->slot) |
2248 | croak ("cannot swap state with coroutine that has no saved state"); |
2564 | croak ("cannot swap state with coroutine that has no saved state,"); |
2249 | else |
2565 | else |
2250 | { |
2566 | { |
2251 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2567 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2252 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2568 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2253 | |
2569 | |
2254 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2570 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2255 | } |
2571 | } |
|
|
2572 | |
2256 | |
2573 | |
2257 | MODULE = Coro::State PACKAGE = Coro |
2574 | MODULE = Coro::State PACKAGE = Coro |
2258 | |
2575 | |
2259 | BOOT: |
2576 | BOOT: |
2260 | { |
2577 | { |
… | |
… | |
2295 | SvREADONLY_on (sv); |
2612 | SvREADONLY_on (sv); |
2296 | } |
2613 | } |
2297 | } |
2614 | } |
2298 | |
2615 | |
2299 | void |
2616 | void |
|
|
2617 | schedule (...) |
|
|
2618 | CODE: |
|
|
2619 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2620 | |
|
|
2621 | void |
|
|
2622 | cede (...) |
|
|
2623 | CODE: |
|
|
2624 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2625 | |
|
|
2626 | void |
|
|
2627 | cede_notself (...) |
|
|
2628 | CODE: |
|
|
2629 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
|
|
2630 | |
|
|
2631 | void |
2300 | _set_current (SV *current) |
2632 | _set_current (SV *current) |
2301 | PROTOTYPE: $ |
2633 | PROTOTYPE: $ |
2302 | CODE: |
2634 | CODE: |
2303 | SvREFCNT_dec (SvRV (coro_current)); |
2635 | SvREFCNT_dec (SvRV (coro_current)); |
2304 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
2636 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
2305 | |
2637 | |
2306 | void |
2638 | void |
2307 | _set_readyhook (SV *hook) |
2639 | _set_readyhook (SV *hook) |
2308 | PROTOTYPE: $ |
2640 | PROTOTYPE: $ |
2309 | CODE: |
2641 | CODE: |
2310 | LOCK; |
|
|
2311 | SvREFCNT_dec (coro_readyhook); |
2642 | SvREFCNT_dec (coro_readyhook); |
2312 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2643 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2313 | UNLOCK; |
|
|
2314 | |
2644 | |
2315 | int |
2645 | int |
2316 | prio (Coro::State coro, int newprio = 0) |
2646 | prio (Coro::State coro, int newprio = 0) |
|
|
2647 | PROTOTYPE: $;$ |
2317 | ALIAS: |
2648 | ALIAS: |
2318 | nice = 1 |
2649 | nice = 1 |
2319 | CODE: |
2650 | CODE: |
2320 | { |
2651 | { |
2321 | RETVAL = coro->prio; |
2652 | RETVAL = coro->prio; |
… | |
… | |
2353 | # for async_pool speedup |
2684 | # for async_pool speedup |
2354 | void |
2685 | void |
2355 | _pool_1 (SV *cb) |
2686 | _pool_1 (SV *cb) |
2356 | CODE: |
2687 | CODE: |
2357 | { |
2688 | { |
2358 | struct coro *coro = SvSTATE (coro_current); |
|
|
2359 | HV *hv = (HV *)SvRV (coro_current); |
2689 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2690 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2360 | AV *defav = GvAV (PL_defgv); |
2691 | AV *defav = GvAV (PL_defgv); |
2361 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2692 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2362 | AV *invoke_av; |
2693 | AV *invoke_av; |
2363 | int i, len; |
2694 | int i, len; |
2364 | |
2695 | |
… | |
… | |
2385 | { |
2716 | { |
2386 | av_fill (defav, len - 1); |
2717 | av_fill (defav, len - 1); |
2387 | for (i = 0; i < len; ++i) |
2718 | for (i = 0; i < len; ++i) |
2388 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2719 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2389 | } |
2720 | } |
2390 | |
|
|
2391 | SvREFCNT_dec (invoke); |
|
|
2392 | } |
2721 | } |
2393 | |
2722 | |
2394 | void |
2723 | void |
2395 | _pool_2 (SV *cb) |
2724 | _pool_2 (SV *cb) |
2396 | CODE: |
2725 | CODE: |
2397 | { |
2726 | { |
2398 | struct coro *coro = SvSTATE (coro_current); |
2727 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2728 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2399 | |
2729 | |
2400 | sv_setsv (cb, &PL_sv_undef); |
2730 | sv_setsv (cb, &PL_sv_undef); |
2401 | |
2731 | |
2402 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2732 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2403 | coro->saved_deffh = 0; |
2733 | coro->saved_deffh = 0; |
… | |
… | |
2410 | SvREFCNT_dec (old); |
2740 | SvREFCNT_dec (old); |
2411 | croak ("\3async_pool terminate\2\n"); |
2741 | croak ("\3async_pool terminate\2\n"); |
2412 | } |
2742 | } |
2413 | |
2743 | |
2414 | av_clear (GvAV (PL_defgv)); |
2744 | av_clear (GvAV (PL_defgv)); |
2415 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2745 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2416 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2746 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2417 | |
2747 | |
2418 | coro->prio = 0; |
2748 | coro->prio = 0; |
2419 | |
2749 | |
2420 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2750 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2421 | api_trace (aTHX_ coro_current, 0); |
2751 | api_trace (aTHX_ coro_current, 0); |
2422 | |
2752 | |
2423 | av_push (av_async_pool, newSVsv (coro_current)); |
2753 | av_push (av_async_pool, newSVsv (coro_current)); |
2424 | } |
2754 | } |
2425 | |
2755 | |
2426 | #if 0 |
|
|
2427 | |
2756 | |
2428 | void |
2757 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2429 | _generator_call (...) |
2758 | |
2430 | PROTOTYPE: @ |
2759 | BOOT: |
2431 | PPCODE: |
2760 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2432 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
2761 | |
2433 | xxxx |
2762 | |
2434 | abort (); |
2763 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2435 | |
2764 | |
2436 | SV * |
2765 | SV * |
2437 | gensub (SV *sub, ...) |
2766 | new (SV *klass, SV *count_ = 0) |
2438 | PROTOTYPE: &;@ |
2767 | CODE: |
2439 | CODE: |
|
|
2440 | { |
2768 | { |
2441 | struct coro *coro; |
2769 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
2442 | MAGIC *mg; |
2770 | AV *av = newAV (); |
2443 | CV *xcv; |
2771 | SV **ary; |
2444 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2445 | int i; |
|
|
2446 | |
2772 | |
2447 | CvGV (ncv) = CvGV (cv); |
2773 | /* unfortunately, building manually saves memory */ |
2448 | CvFILE (ncv) = CvFILE (cv); |
2774 | Newx (ary, 2, SV *); |
|
|
2775 | AvALLOC (av) = ary; |
|
|
2776 | AvARRAY (av) = ary; |
|
|
2777 | AvMAX (av) = 1; |
|
|
2778 | AvFILLp (av) = 0; |
|
|
2779 | ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1); |
2449 | |
2780 | |
2450 | Newz (0, coro, 1, struct coro); |
2781 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
2451 | coro->args = newAV (); |
|
|
2452 | coro->flags = CF_NEW; |
|
|
2453 | |
|
|
2454 | av_extend (coro->args, items - 1); |
|
|
2455 | for (i = 1; i < items; i++) |
|
|
2456 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2457 | |
|
|
2458 | CvISXSUB_on (ncv); |
|
|
2459 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2460 | |
|
|
2461 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2462 | |
|
|
2463 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2464 | CvANON_on (ncv); |
|
|
2465 | |
|
|
2466 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2467 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2468 | } |
2782 | } |
2469 | OUTPUT: |
2783 | OUTPUT: |
2470 | RETVAL |
2784 | RETVAL |
2471 | |
2785 | |
2472 | #endif |
2786 | SV * |
2473 | |
2787 | count (SV *self) |
2474 | |
2788 | CODE: |
2475 | MODULE = Coro::State PACKAGE = Coro::AIO |
2789 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2790 | OUTPUT: |
|
|
2791 | RETVAL |
2476 | |
2792 | |
2477 | void |
2793 | void |
2478 | _get_state (SV *self) |
2794 | up (SV *self, int adjust = 1) |
2479 | PPCODE: |
2795 | ALIAS: |
2480 | { |
2796 | adjust = 1 |
2481 | AV *defav = GvAV (PL_defgv); |
2797 | CODE: |
2482 | AV *av = newAV (); |
2798 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2483 | int i; |
|
|
2484 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2485 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2486 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2487 | SvPOK_only (data_sv); |
|
|
2488 | |
|
|
2489 | data->errorno = errno; |
|
|
2490 | data->laststype = PL_laststype; |
|
|
2491 | data->laststatval = PL_laststatval; |
|
|
2492 | data->statcache = PL_statcache; |
|
|
2493 | |
|
|
2494 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2495 | |
|
|
2496 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2497 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2498 | |
|
|
2499 | av_push (av, data_sv); |
|
|
2500 | |
|
|
2501 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2502 | |
|
|
2503 | api_ready (aTHX_ self); |
|
|
2504 | } |
|
|
2505 | |
2799 | |
2506 | void |
2800 | void |
2507 | _set_state (SV *state) |
2801 | down (SV *self) |
2508 | PROTOTYPE: $ |
2802 | CODE: |
2509 | PPCODE: |
2803 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2804 | |
|
|
2805 | void |
|
|
2806 | try (SV *self) |
|
|
2807 | PPCODE: |
2510 | { |
2808 | { |
2511 | AV *av = (AV *)SvRV (state); |
2809 | AV *av = (AV *)SvRV (self); |
2512 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
2810 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2811 | IV count = SvIVX (count_sv); |
|
|
2812 | |
|
|
2813 | if (count > 0) |
|
|
2814 | { |
|
|
2815 | --count; |
|
|
2816 | SvIVX (count_sv) = count; |
|
|
2817 | XSRETURN_YES; |
|
|
2818 | } |
|
|
2819 | else |
|
|
2820 | XSRETURN_NO; |
|
|
2821 | } |
|
|
2822 | |
|
|
2823 | void |
|
|
2824 | waiters (SV *self) |
|
|
2825 | CODE: |
|
|
2826 | { |
|
|
2827 | AV *av = (AV *)SvRV (self); |
|
|
2828 | |
|
|
2829 | if (GIMME_V == G_SCALAR) |
|
|
2830 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2831 | else |
|
|
2832 | { |
2513 | int i; |
2833 | int i; |
2514 | |
|
|
2515 | errno = data->errorno; |
|
|
2516 | PL_laststype = data->laststype; |
|
|
2517 | PL_laststatval = data->laststatval; |
|
|
2518 | PL_statcache = data->statcache; |
|
|
2519 | |
|
|
2520 | EXTEND (SP, AvFILLp (av)); |
2834 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
2521 | for (i = 0; i < AvFILLp (av); ++i) |
2835 | for (i = 1; i <= AvFILLp (av); ++i) |
2522 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
2836 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
2837 | } |
2523 | } |
2838 | } |
2524 | |
2839 | |
2525 | |
2840 | |
2526 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2841 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2527 | |
2842 | |
2528 | BOOT: |
2843 | BOOT: |
2529 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2844 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2530 | |
2845 | |
2531 | SV * |
2846 | void |
2532 | _schedule (...) |
2847 | _schedule (...) |
2533 | PROTOTYPE: @ |
|
|
2534 | CODE: |
2848 | CODE: |
2535 | { |
2849 | { |
2536 | static int incede; |
2850 | static int incede; |
2537 | |
2851 | |
2538 | api_cede_notself (aTHX); |
2852 | api_cede_notself (aTHX); |
… | |
… | |
2544 | sv_setsv (sv_activity, &PL_sv_undef); |
2858 | sv_setsv (sv_activity, &PL_sv_undef); |
2545 | if (coro_nready >= incede) |
2859 | if (coro_nready >= incede) |
2546 | { |
2860 | { |
2547 | PUSHMARK (SP); |
2861 | PUSHMARK (SP); |
2548 | PUTBACK; |
2862 | PUTBACK; |
2549 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
2863 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2550 | SPAGAIN; |
|
|
2551 | } |
2864 | } |
2552 | |
2865 | |
2553 | --incede; |
2866 | --incede; |
2554 | } |
2867 | } |
2555 | |
2868 | |
2556 | |
2869 | |
2557 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2870 | MODULE = Coro::State PACKAGE = Coro::AIO |
2558 | |
2871 | |
2559 | BOOT: |
2872 | void |
2560 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2873 | _register (char *target, char *proto, SV *req) |
|
|
2874 | CODE: |
|
|
2875 | { |
|
|
2876 | HV *st; |
|
|
2877 | GV *gvp; |
|
|
2878 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2879 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
2880 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
2881 | sv_setpv ((SV *)slf_cv, proto); |
|
|
2882 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2883 | } |
2561 | |
2884 | |