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Comparing Coro/Coro/State.xs (file contents):
Revision 1.272 by root, Fri Nov 14 20:35:49 2008 UTC vs.
Revision 1.307 by root, Wed Nov 19 14:34:46 2008 UTC

… …
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
… …
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
… …
117#endif 120#endif
118 121
119/* The next macros try to return the current stack pointer, in an as 122/* The next macros try to return the current stack pointer, in an as
120 * portable way as possible. */ 123 * portable way as possible. */
121#if __GNUC__ >= 4 124#if __GNUC__ >= 4
125# define dSTACKLEVEL int stacklevel_dummy
122# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 126# define STACKLEVEL __builtin_frame_address (0)
123#else 127#else
124# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 128# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel)
125#endif 130#endif
126 131
127#define IN_DESTRUCT (PL_main_cv == Nullcv) 132#define IN_DESTRUCT (PL_main_cv == Nullcv)
128 133
129#if __GNUC__ >= 3 134#if __GNUC__ >= 3
… …
140#define expect_true(expr) expect ((expr) != 0, 1) 145#define expect_true(expr) expect ((expr) != 0, 1)
141 146
142#define NOINLINE attribute ((noinline)) 147#define NOINLINE attribute ((noinline))
143 148
144#include "CoroAPI.h" 149#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */
145 151
146#ifdef USE_ITHREADS 152#ifdef USE_ITHREADS
147
148static 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 153# if CORO_PTHREAD
152static void *coro_thx; 154static void *coro_thx;
153# endif 155# endif
154
155#else
156
157# define LOCK (void)0
158# define UNLOCK (void)0
159
160#endif 156#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 */
168struct 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};
176 157
177static double (*nvtime)(); /* so why doesn't it take void? */ 158static double (*nvtime)(); /* so why doesn't it take void? */
159
160/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX);
178 163
179static U32 cctx_gen; 164static U32 cctx_gen;
180static size_t cctx_stacksize = CORO_STACKSIZE; 165static size_t cctx_stacksize = CORO_STACKSIZE;
181static struct CoroAPI coroapi; 166static struct CoroAPI coroapi;
182static AV *main_mainstack; /* used to differentiate between $main and others */ 167static AV *main_mainstack; /* used to differentiate between $main and others */
183static JMPENV *main_top_env; 168static JMPENV *main_top_env;
184static HV *coro_state_stash, *coro_stash; 169static HV *coro_state_stash, *coro_stash;
185static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
186static volatile struct coro *transfer_next;
187 171
188static GV *irsgv; /* $/ */ 172static GV *irsgv; /* $/ */
189static GV *stdoutgv; /* *STDOUT */ 173static GV *stdoutgv; /* *STDOUT */
190static SV *rv_diehook; 174static SV *rv_diehook;
191static SV *rv_warnhook; 175static SV *rv_warnhook;
… …
252#undef VAR 236#undef VAR
253} perl_slots; 237} perl_slots;
254 238
255#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
256 240
257/* this is the per-perl-coro slf frame info */
258/* it is treated like other "global" interpreter data */
259/* and unfortunately is copied around, so kepe it small */
260struct slf_frame
261{
262 void (*prepare) (struct coro_transfer_args *ta); /* 0 means not yet initialised */
263 int (*check) (pTHX);
264};
265
266/* this is a structure representing a perl-level coroutine */ 241/* this is a structure representing a perl-level coroutine */
267struct coro { 242struct coro {
268 /* the C coroutine allocated to this perl coroutine, if any */ 243 /* the C coroutine allocated to this perl coroutine, if any */
269 coro_cctx *cctx; 244 coro_cctx *cctx;
270 245
271 /* process data */ 246 /* state data */
272 struct slf_frame slf_frame; /* saved slf frame */ 247 struct CoroSLF slf_frame; /* saved slf frame */
273 void *slf_data;
274 AV *mainstack; 248 AV *mainstack;
275 perl_slots *slot; /* basically the saved sp */ 249 perl_slots *slot; /* basically the saved sp */
276 250
251 CV *startcv; /* the CV to execute */
277 AV *args; /* data associated with this coroutine (initial args) */ 252 AV *args; /* data associated with this coroutine (initial args) */
278 int refcnt; /* coroutines are refcounted, yes */ 253 int refcnt; /* coroutines are refcounted, yes */
279 int flags; /* CF_ flags */ 254 int flags; /* CF_ flags */
280 HV *hv; /* the perl hash associated with this coro, if any */ 255 HV *hv; /* the perl hash associated with this coro, if any */
256 void (*on_destroy)(pTHX_ struct coro *coro);
281 257
282 /* statistics */ 258 /* statistics */
283 int usecount; /* number of transfers to this coro */ 259 int usecount; /* number of transfers to this coro */
284 260
285 /* coro process data */ 261 /* coro process data */
286 int prio; 262 int prio;
287 SV *throw; /* exception to be thrown */ 263 SV *except; /* exception to be thrown */
264 SV *rouse_cb;
288 265
289 /* async_pool */ 266 /* async_pool */
290 SV *saved_deffh; 267 SV *saved_deffh;
291 268
292 /* linked list */ 269 /* linked list */
… …
294}; 271};
295 272
296typedef struct coro *Coro__State; 273typedef struct coro *Coro__State;
297typedef struct coro *Coro__State_or_hashref; 274typedef struct coro *Coro__State_or_hashref;
298 275
276/* the following variables are effectively part of the perl context */
277/* and get copied between struct coro and these variables */
278/* the mainr easonw e don't support windows process emulation */
299static struct slf_frame slf_frame; /* the current slf frame */ 279static struct CoroSLF slf_frame; /* the current slf frame */
300 280
301/** Coro ********************************************************************/ 281/** Coro ********************************************************************/
302 282
303#define PRIO_MAX 3 283#define PRIO_MAX 3
304#define PRIO_HIGH 1 284#define PRIO_HIGH 1
… …
342#if PERL_VERSION_ATLEAST (5,10,0) 322#if PERL_VERSION_ATLEAST (5,10,0)
343 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 323 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
344 get_hv (name, create); 324 get_hv (name, create);
345#endif 325#endif
346 return get_hv (name, create); 326 return get_hv (name, create);
327}
328
329/* may croak */
330INLINE CV *
331coro_sv_2cv (SV *sv)
332{
333 HV *st;
334 GV *gvp;
335 return sv_2cv (sv, &st, &gvp, 0);
347} 336}
348 337
349static AV * 338static AV *
350coro_clone_padlist (pTHX_ CV *cv) 339coro_clone_padlist (pTHX_ CV *cv)
351{ 340{
… …
405 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 394 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
406 395
407 return 0; 396 return 0;
408} 397}
409 398
410#define CORO_MAGIC_type_cv PERL_MAGIC_ext 399#define CORO_MAGIC_type_cv 26
411#define CORO_MAGIC_type_state PERL_MAGIC_ext 400#define CORO_MAGIC_type_state PERL_MAGIC_ext
412 401
413static MGVTBL coro_cv_vtbl = { 402static MGVTBL coro_cv_vtbl = {
414 0, 0, 0, 0, 403 0, 0, 0, 0,
415 coro_cv_free 404 coro_cv_free
416}; 405};
417 406
407#define CORO_MAGIC_NN(sv, type) \
408 (expect_true (SvMAGIC (sv)->mg_type == type) \
409 ? SvMAGIC (sv) \
410 : mg_find (sv, type))
411
418#define CORO_MAGIC(sv, type) \ 412#define CORO_MAGIC(sv, type) \
419 SvMAGIC (sv) \ 413 (expect_true (SvMAGIC (sv)) \
420 ? SvMAGIC (sv)->mg_type == type \ 414 ? CORO_MAGIC_NN (sv, type) \
421 ? SvMAGIC (sv) \
422 : mg_find (sv, type) \
423 : 0 415 : 0)
424 416
425#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 417#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
426#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) 418#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
427 419
428INLINE struct coro * 420INLINE struct coro *
429SvSTATE_ (pTHX_ SV *coro) 421SvSTATE_ (pTHX_ SV *coro)
430{ 422{
431 HV *stash; 423 HV *stash;
… …
448 mg = CORO_MAGIC_state (coro); 440 mg = CORO_MAGIC_state (coro);
449 return (struct coro *)mg->mg_ptr; 441 return (struct coro *)mg->mg_ptr;
450} 442}
451 443
452#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 444#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
445
446/* faster than SvSTATE, but expects a coroutine hv */
447#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
448#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
453 449
454/* the next two functions merely cache the padlists */ 450/* the next two functions merely cache the padlists */
455static void 451static void
456get_padlist (pTHX_ CV *cv) 452get_padlist (pTHX_ CV *cv)
457{ 453{
… …
463 else 459 else
464 { 460 {
465#if CORO_PREFER_PERL_FUNCTIONS 461#if CORO_PREFER_PERL_FUNCTIONS
466 /* this is probably cleaner? but also slower! */ 462 /* this is probably cleaner? but also slower! */
467 /* in practise, it seems to be less stable */ 463 /* in practise, it seems to be less stable */
468 CV *cp = Perl_cv_clone (cv); 464 CV *cp = Perl_cv_clone (aTHX_ cv);
469 CvPADLIST (cv) = CvPADLIST (cp); 465 CvPADLIST (cv) = CvPADLIST (cp);
470 CvPADLIST (cp) = 0; 466 CvPADLIST (cp) = 0;
471 SvREFCNT_dec (cp); 467 SvREFCNT_dec (cp);
472#else 468#else
473 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 469 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
… …
525 } 521 }
526 522
527 PUTBACK; 523 PUTBACK;
528 } 524 }
529 525
530 slf_frame = c->slf_frame; 526 slf_frame = c->slf_frame;
531 coroapi.slf_data = c->slf_data; 527 CORO_THROW = c->except;
532} 528}
533 529
534static void 530static void
535save_perl (pTHX_ Coro__State c) 531save_perl (pTHX_ Coro__State c)
536{ 532{
537 c->slf_data = coroapi.slf_data; 533 c->except = CORO_THROW;
538 c->slf_frame = slf_frame; 534 c->slf_frame = slf_frame;
539 535
540 { 536 {
541 dSP; 537 dSP;
542 I32 cxix = cxstack_ix; 538 I32 cxix = cxstack_ix;
… …
617 * of perl.c:init_stacks, except that it uses less memory 613 * of perl.c:init_stacks, except that it uses less memory
618 * on the (sometimes correct) assumption that coroutines do 614 * on the (sometimes correct) assumption that coroutines do
619 * not usually need a lot of stackspace. 615 * not usually need a lot of stackspace.
620 */ 616 */
621#if CORO_PREFER_PERL_FUNCTIONS 617#if CORO_PREFER_PERL_FUNCTIONS
622# define coro_init_stacks init_stacks 618# define coro_init_stacks(thx) init_stacks ()
623#else 619#else
624static void 620static void
625coro_init_stacks (pTHX) 621coro_init_stacks (pTHX)
626{ 622{
627 PL_curstackinfo = new_stackinfo(32, 8); 623 PL_curstackinfo = new_stackinfo(32, 8);
… …
823 819
824 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; 820 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
825} 821}
826 822
827static void 823static void
828prepare_nop (aTHX_ struct coro_transfer_args *ta) 824prepare_nop (pTHX_ struct coro_transfer_args *ta)
829{ 825{
830 /* kind of mega-hacky, but works */ 826 /* kind of mega-hacky, but works */
831 ta->next = ta->prev = (struct coro *)ta; 827 ta->next = ta->prev = (struct coro *)ta;
832} 828}
833 829
834static int 830static int
835slf_check_nop (aTHX) 831slf_check_nop (pTHX_ struct CoroSLF *frame)
836{ 832{
837 return 0; 833 return 0;
838} 834}
839 835
840static void 836static UNOP coro_setup_op;
837
838static void NOINLINE /* noinline to keep it out of the transfer fast path */
841coro_setup (pTHX_ struct coro *coro) 839coro_setup (pTHX_ struct coro *coro)
842{ 840{
843 /* 841 /*
844 * emulate part of the perl startup here. 842 * emulate part of the perl startup here.
845 */ 843 */
… …
872 { 870 {
873 dSP; 871 dSP;
874 UNOP myop; 872 UNOP myop;
875 873
876 Zero (&myop, 1, UNOP); 874 Zero (&myop, 1, UNOP);
877 myop.op_next = Nullop; 875 myop.op_next = Nullop;
878 myop.op_flags = OPf_WANT_VOID; 876 myop.op_flags = OPf_WANT_VOID;
879 877
880 PUSHMARK (SP); 878 PUSHMARK (SP);
881 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 879 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
882 PUTBACK; 880 PUTBACK;
… …
888 /* this newly created coroutine might be run on an existing cctx which most 886 /* this newly created coroutine might be run on an existing cctx which most
889 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 887 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
890 */ 888 */
891 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 889 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
892 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 890 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
891
892 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
893 coro_setup_op.op_next = PL_op;
894 coro_setup_op.op_type = OP_CUSTOM;
895 coro_setup_op.op_ppaddr = pp_slf;
896 /* no flags required, as an init function won't be called */
897
898 PL_op = (OP *)&coro_setup_op;
899
900 /* copy throw, in case it was set before coro_setup */
901 CORO_THROW = coro->except;
893} 902}
894 903
895static void 904static void
896coro_destruct (pTHX_ struct coro *coro) 905coro_destruct (pTHX_ struct coro *coro)
897{ 906{
… …
920 SvREFCNT_dec (GvSV (irsgv)); 929 SvREFCNT_dec (GvSV (irsgv));
921 930
922 SvREFCNT_dec (PL_diehook); 931 SvREFCNT_dec (PL_diehook);
923 SvREFCNT_dec (PL_warnhook); 932 SvREFCNT_dec (PL_warnhook);
924 933
934 SvREFCNT_dec (CORO_THROW);
925 SvREFCNT_dec (coro->saved_deffh); 935 SvREFCNT_dec (coro->saved_deffh);
926 SvREFCNT_dec (coro->throw); 936 SvREFCNT_dec (coro->rouse_cb);
927 937
928 coro_destruct_stacks (aTHX); 938 coro_destruct_stacks (aTHX);
929} 939}
930 940
931INLINE void 941INLINE void
… …
941static int 951static int
942runops_trace (pTHX) 952runops_trace (pTHX)
943{ 953{
944 COP *oldcop = 0; 954 COP *oldcop = 0;
945 int oldcxix = -2; 955 int oldcxix = -2;
946 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ 956 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
947 coro_cctx *cctx = coro->cctx; 957 coro_cctx *cctx = coro->cctx;
948 958
949 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 959 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
950 { 960 {
951 PERL_ASYNC_CHECK (); 961 PERL_ASYNC_CHECK ();
… …
1018 SAVETMPS; 1028 SAVETMPS;
1019 EXTEND (SP, 3); 1029 EXTEND (SP, 3);
1020 PUSHMARK (SP); 1030 PUSHMARK (SP);
1021 PUSHs (&PL_sv_yes); 1031 PUSHs (&PL_sv_yes);
1022 PUSHs (fullname); 1032 PUSHs (fullname);
1023 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1033 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1024 PUTBACK; 1034 PUTBACK;
1025 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1035 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1026 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1036 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1027 SPAGAIN; 1037 SPAGAIN;
1028 FREETMPS; 1038 FREETMPS;
… …
1060 1070
1061 TAINT_NOT; 1071 TAINT_NOT;
1062 return 0; 1072 return 0;
1063} 1073}
1064 1074
1075static struct coro_cctx *cctx_ssl_cctx;
1076static struct CoroSLF cctx_ssl_frame;
1077
1065static void 1078static void
1066prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) 1079slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1067{ 1080{
1068 ta->prev = (struct coro *)cctx; 1081 ta->prev = (struct coro *)cctx_ssl_cctx;
1069 ta->next = 0; 1082 ta->next = 0;
1070} 1083}
1071 1084
1072/* inject a fake call to Coro::State::_cctx_init into the execution */ 1085static int
1073/* _cctx_init should be careful, as it could be called at almost any time */ 1086slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1074/* during execution of a perl program */ 1087{
1075/* also initialises PL_top_env */ 1088 *frame = cctx_ssl_frame;
1089
1090 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1091}
1092
1093/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1076static void NOINLINE 1094static void NOINLINE
1077cctx_prepare (pTHX_ coro_cctx *cctx) 1095cctx_prepare (pTHX_ coro_cctx *cctx)
1078{ 1096{
1079 dSP;
1080 UNOP myop;
1081
1082 PL_top_env = &PL_start_env; 1097 PL_top_env = &PL_start_env;
1083 1098
1084 if (cctx->flags & CC_TRACE) 1099 if (cctx->flags & CC_TRACE)
1085 PL_runops = runops_trace; 1100 PL_runops = runops_trace;
1086 1101
1087 Zero (&myop, 1, UNOP); 1102 /* we already must be executing an SLF op, there is no other valid way
1088 myop.op_next = PL_op; 1103 * that can lead to creation of a new cctx */
1089 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1104 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1105 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1090 1106
1091 PUSHMARK (SP); 1107 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1092 EXTEND (SP, 2); 1108 cctx_ssl_cctx = cctx;
1093 PUSHs (sv_2mortal (newSViv ((IV)cctx))); 1109 cctx_ssl_frame = slf_frame;
1094 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1110
1095 PUTBACK; 1111 slf_frame.prepare = slf_prepare_set_stacklevel;
1096 PL_op = (OP *)&myop; 1112 slf_frame.check = slf_check_set_stacklevel;
1097 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1098 SPAGAIN;
1099} 1113}
1100 1114
1101/* the tail of transfer: execute stuff we can only do after a transfer */ 1115/* the tail of transfer: execute stuff we can only do after a transfer */
1102INLINE void 1116INLINE void
1103transfer_tail (pTHX) 1117transfer_tail (pTHX)
1104{ 1118{
1105 struct coro *next = (struct coro *)transfer_next;
1106 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1107 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1108
1109 free_coro_mortal (aTHX); 1119 free_coro_mortal (aTHX);
1110 UNLOCK;
1111
1112 if (expect_false (next->throw))
1113 {
1114 SV *exception = sv_2mortal (next->throw);
1115
1116 next->throw = 0;
1117 sv_setsv (ERRSV, exception);
1118 croak (0);
1119 }
1120} 1120}
1121 1121
1122/* 1122/*
1123 * this is a _very_ stripped down perl interpreter ;) 1123 * this is a _very_ stripped down perl interpreter ;)
1124 */ 1124 */
… …
1139 1139
1140 /* inject a fake subroutine call to cctx_init */ 1140 /* inject a fake subroutine call to cctx_init */
1141 cctx_prepare (aTHX_ (coro_cctx *)arg); 1141 cctx_prepare (aTHX_ (coro_cctx *)arg);
1142 1142
1143 /* cctx_run is the alternative tail of transfer() */ 1143 /* cctx_run is the alternative tail of transfer() */
1144 /* TODO: throwing an exception here might be deadly, VERIFY */
1145 transfer_tail (aTHX); 1144 transfer_tail (aTHX);
1146 1145
1147 /* somebody or something will hit me for both perl_run and PL_restartop */ 1146 /* somebody or something will hit me for both perl_run and PL_restartop */
1148 PL_restartop = PL_op; 1147 PL_restartop = PL_op;
1149 perl_run (PL_curinterp); 1148 perl_run (PL_curinterp);
… …
1305/** coroutine switching *****************************************************/ 1304/** coroutine switching *****************************************************/
1306 1305
1307static void 1306static void
1308transfer_check (pTHX_ struct coro *prev, struct coro *next) 1307transfer_check (pTHX_ struct coro *prev, struct coro *next)
1309{ 1308{
1309 /* TODO: throwing up here is considered harmful */
1310
1310 if (expect_true (prev != next)) 1311 if (expect_true (prev != next))
1311 { 1312 {
1312 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1313 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"); 1314 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");
1314 1315
1315 if (expect_false (next->flags & CF_RUNNING)) 1316 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"); 1317 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1317 1318
1318 if (expect_false (next->flags & CF_DESTROYED)) 1319 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"); 1320 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");
1320 1321
1321#if !PERL_VERSION_ATLEAST (5,10,0) 1322#if !PERL_VERSION_ATLEAST (5,10,0)
1322 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1323 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"); 1324 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1324#endif 1325#endif
1325 } 1326 }
1326} 1327}
1327 1328
1328/* always use the TRANSFER macro */ 1329/* always use the TRANSFER macro */
1329static void NOINLINE 1330static void NOINLINE /* noinline so we have a fixed stackframe */
1330transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1331transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1331{ 1332{
1332 dSTACKLEVEL; 1333 dSTACKLEVEL;
1333 1334
1334 /* sometimes transfer is only called to set idle_sp */ 1335 /* sometimes transfer is only called to set idle_sp */
1335 if (expect_false (!next)) 1336 if (expect_false (!next))
1336 { 1337 {
1337 ((coro_cctx *)prev)->idle_sp = stacklevel; 1338 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1338 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1339 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1339 } 1340 }
1340 else if (expect_true (prev != next)) 1341 else if (expect_true (prev != next))
1341 { 1342 {
1342 coro_cctx *prev__cctx; 1343 coro_cctx *prev__cctx;
… …
1349 prev->flags |= CF_RUNNING; 1350 prev->flags |= CF_RUNNING;
1350 } 1351 }
1351 1352
1352 prev->flags &= ~CF_RUNNING; 1353 prev->flags &= ~CF_RUNNING;
1353 next->flags |= CF_RUNNING; 1354 next->flags |= CF_RUNNING;
1354
1355 LOCK;
1356 1355
1357 /* first get rid of the old state */ 1356 /* first get rid of the old state */
1358 save_perl (aTHX_ prev); 1357 save_perl (aTHX_ prev);
1359 1358
1360 if (expect_false (next->flags & CF_NEW)) 1359 if (expect_false (next->flags & CF_NEW))
… …
1369 1368
1370 prev__cctx = prev->cctx; 1369 prev__cctx = prev->cctx;
1371 1370
1372 /* possibly untie and reuse the cctx */ 1371 /* possibly untie and reuse the cctx */
1373 if (expect_true ( 1372 if (expect_true (
1374 prev__cctx->idle_sp == stacklevel 1373 prev__cctx->idle_sp == STACKLEVEL
1375 && !(prev__cctx->flags & CC_TRACE) 1374 && !(prev__cctx->flags & CC_TRACE)
1376 && !force_cctx 1375 && !force_cctx
1377 )) 1376 ))
1378 { 1377 {
1379 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1378 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
… …
1393 ++next->usecount; 1392 ++next->usecount;
1394 1393
1395 if (expect_true (!next->cctx)) 1394 if (expect_true (!next->cctx))
1396 next->cctx = cctx_get (aTHX); 1395 next->cctx = cctx_get (aTHX);
1397 1396
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)) 1397 if (expect_false (prev__cctx != next->cctx))
1402 { 1398 {
1403 prev__cctx->top_env = PL_top_env; 1399 prev__cctx->top_env = PL_top_env;
1404 PL_top_env = next->cctx->top_env; 1400 PL_top_env = next->cctx->top_env;
1405 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1401 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
… …
1418coro_state_destroy (pTHX_ struct coro *coro) 1414coro_state_destroy (pTHX_ struct coro *coro)
1419{ 1415{
1420 if (coro->flags & CF_DESTROYED) 1416 if (coro->flags & CF_DESTROYED)
1421 return 0; 1417 return 0;
1422 1418
1419 if (coro->on_destroy)
1420 coro->on_destroy (aTHX_ coro);
1421
1423 coro->flags |= CF_DESTROYED; 1422 coro->flags |= CF_DESTROYED;
1424 1423
1425 if (coro->flags & CF_READY) 1424 if (coro->flags & CF_READY)
1426 { 1425 {
1427 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1426 /* reduce nready, as destroying a ready coro effectively unreadies it */
1428 /* alternative: look through all ready queues and remove the coro */ 1427 /* alternative: look through all ready queues and remove the coro */
1429 LOCK;
1430 --coro_nready; 1428 --coro_nready;
1431 UNLOCK;
1432 } 1429 }
1433 else 1430 else
1434 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1431 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1435 1432
1436 if (coro->mainstack && coro->mainstack != main_mainstack) 1433 if (coro->mainstack && coro->mainstack != main_mainstack)
1437 { 1434 {
1438 struct coro temp; 1435 struct coro temp;
1439 1436
1440 if (coro->flags & CF_RUNNING) 1437 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1441 croak ("FATAL: tried to destroy currently running coroutine");
1442 1438
1443 save_perl (aTHX_ &temp); 1439 save_perl (aTHX_ &temp);
1444 load_perl (aTHX_ coro); 1440 load_perl (aTHX_ coro);
1445 1441
1446 coro_destruct (aTHX_ coro); 1442 coro_destruct (aTHX_ coro);
… …
1449 1445
1450 coro->slot = 0; 1446 coro->slot = 0;
1451 } 1447 }
1452 1448
1453 cctx_destroy (coro->cctx); 1449 cctx_destroy (coro->cctx);
1450 SvREFCNT_dec (coro->startcv);
1454 SvREFCNT_dec (coro->args); 1451 SvREFCNT_dec (coro->args);
1455 1452
1456 if (coro->next) coro->next->prev = coro->prev; 1453 if (coro->next) coro->next->prev = coro->prev;
1457 if (coro->prev) coro->prev->next = coro->next; 1454 if (coro->prev) coro->prev->next = coro->next;
1458 if (coro == coro_first) coro_first = coro->next; 1455 if (coro == coro_first) coro_first = coro->next;
… …
1513 1510
1514 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1511 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1515 TRANSFER (ta, 1); 1512 TRANSFER (ta, 1);
1516} 1513}
1517 1514
1515/*****************************************************************************/
1516/* gensub: simple closure generation utility */
1517
1518#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1519
1520/* create a closure from XS, returns a code reference */
1521/* the arg can be accessed via GENSUB_ARG from the callback */
1522/* the callback must use dXSARGS/XSRETURN */
1523static SV *
1524gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1525{
1526 CV *cv = (CV *)newSV (0);
1527
1528 sv_upgrade ((SV *)cv, SVt_PVCV);
1529
1530 CvANON_on (cv);
1531 CvISXSUB_on (cv);
1532 CvXSUB (cv) = xsub;
1533 GENSUB_ARG = arg;
1534
1535 return newRV_noinc ((SV *)cv);
1536}
1537
1518/** Coro ********************************************************************/ 1538/** Coro ********************************************************************/
1519 1539
1520static void 1540INLINE void
1521coro_enq (pTHX_ SV *coro_sv) 1541coro_enq (pTHX_ struct coro *coro)
1522{ 1542{
1523 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1543 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));
1524} 1544}
1525 1545
1526static SV * 1546INLINE SV *
1527coro_deq (pTHX) 1547coro_deq (pTHX)
1528{ 1548{
1529 int prio; 1549 int prio;
1530 1550
1531 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1551 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
… …
1550 if (coro->flags & CF_READY) 1570 if (coro->flags & CF_READY)
1551 return 0; 1571 return 0;
1552 1572
1553 coro->flags |= CF_READY; 1573 coro->flags |= CF_READY;
1554 1574
1555 LOCK;
1556
1557 sv_hook = coro_nready ? 0 : coro_readyhook; 1575 sv_hook = coro_nready ? 0 : coro_readyhook;
1558 xs_hook = coro_nready ? 0 : coroapi.readyhook; 1576 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1559 1577
1560 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); 1578 coro_enq (aTHX_ coro);
1561 ++coro_nready; 1579 ++coro_nready;
1562 1580
1563 UNLOCK;
1564
1565 if (sv_hook) 1581 if (sv_hook)
1566 { 1582 {
1567 dSP; 1583 dSP;
1568 1584
1569 ENTER; 1585 ENTER;
1570 SAVETMPS; 1586 SAVETMPS;
1571 1587
1572 PUSHMARK (SP); 1588 PUSHMARK (SP);
1573 PUTBACK; 1589 PUTBACK;
1574 call_sv (sv_hook, G_DISCARD); 1590 call_sv (sv_hook, G_VOID | G_DISCARD);
1575 SPAGAIN;
1576 1591
1577 FREETMPS; 1592 FREETMPS;
1578 LEAVE; 1593 LEAVE;
1579 } 1594 }
1580 1595
… …
1595{ 1610{
1596 SV *prev_sv, *next_sv; 1611 SV *prev_sv, *next_sv;
1597 1612
1598 for (;;) 1613 for (;;)
1599 { 1614 {
1600 LOCK;
1601 next_sv = coro_deq (aTHX); 1615 next_sv = coro_deq (aTHX);
1602 1616
1603 /* nothing to schedule: call the idle handler */ 1617 /* nothing to schedule: call the idle handler */
1604 if (expect_false (!next_sv)) 1618 if (expect_false (!next_sv))
1605 { 1619 {
1606 dSP; 1620 dSP;
1607 UNLOCK;
1608 1621
1609 ENTER; 1622 ENTER;
1610 SAVETMPS; 1623 SAVETMPS;
1611 1624
1612 PUSHMARK (SP); 1625 PUSHMARK (SP);
1613 PUTBACK; 1626 PUTBACK;
1614 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1627 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1615 SPAGAIN;
1616 1628
1617 FREETMPS; 1629 FREETMPS;
1618 LEAVE; 1630 LEAVE;
1619 continue; 1631 continue;
1620 } 1632 }
1621 1633
1622 ta->next = SvSTATE (next_sv); 1634 ta->next = SvSTATE_hv (next_sv);
1623 1635
1624 /* cannot transfer to destroyed coros, skip and look for next */ 1636 /* cannot transfer to destroyed coros, skip and look for next */
1625 if (expect_false (ta->next->flags & CF_DESTROYED)) 1637 if (expect_false (ta->next->flags & CF_DESTROYED))
1626 { 1638 {
1627 UNLOCK;
1628 SvREFCNT_dec (next_sv); 1639 SvREFCNT_dec (next_sv);
1629 /* coro_nready has already been taken care of by destroy */ 1640 /* coro_nready has already been taken care of by destroy */
1630 continue; 1641 continue;
1631 } 1642 }
1632 1643
1633 --coro_nready; 1644 --coro_nready;
1634 UNLOCK;
1635 break; 1645 break;
1636 } 1646 }
1637 1647
1638 /* free this only after the transfer */ 1648 /* free this only after the transfer */
1639 prev_sv = SvRV (coro_current); 1649 prev_sv = SvRV (coro_current);
1640 ta->prev = SvSTATE (prev_sv); 1650 ta->prev = SvSTATE_hv (prev_sv);
1641 TRANSFER_CHECK (*ta); 1651 TRANSFER_CHECK (*ta);
1642 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1652 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1643 ta->next->flags &= ~CF_READY; 1653 ta->next->flags &= ~CF_READY;
1644 SvRV_set (coro_current, next_sv); 1654 SvRV_set (coro_current, next_sv);
1645 1655
1646 LOCK;
1647 free_coro_mortal (aTHX); 1656 free_coro_mortal (aTHX);
1648 coro_mortal = prev_sv; 1657 coro_mortal = prev_sv;
1649 UNLOCK;
1650} 1658}
1651 1659
1652INLINE void 1660INLINE void
1653prepare_cede (pTHX_ struct coro_transfer_args *ta) 1661prepare_cede (pTHX_ struct coro_transfer_args *ta)
1654{ 1662{
… …
1718 if (flags & CC_TRACE) 1726 if (flags & CC_TRACE)
1719 { 1727 {
1720 if (!coro->cctx) 1728 if (!coro->cctx)
1721 coro->cctx = cctx_new_run (); 1729 coro->cctx = cctx_new_run ();
1722 else if (!(coro->cctx->flags & CC_TRACE)) 1730 else if (!(coro->cctx->flags & CC_TRACE))
1723 croak ("cannot enable tracing on coroutine with custom stack"); 1731 croak ("cannot enable tracing on coroutine with custom stack,");
1724 1732
1725 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1733 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1726 } 1734 }
1727 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1735 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1728 { 1736 {
… …
1733 else 1741 else
1734 coro->slot->runops = RUNOPS_DEFAULT; 1742 coro->slot->runops = RUNOPS_DEFAULT;
1735 } 1743 }
1736} 1744}
1737 1745
1738#if 0 1746/*****************************************************************************/
1747/* rouse callback */
1748
1749#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1750
1751static void
1752coro_rouse_callback (pTHX_ CV *cv)
1753{
1754 dXSARGS;
1755 SV *data = (SV *)GENSUB_ARG;
1756
1757 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1758 {
1759 /* first call, set args */
1760 int i;
1761 AV *av = newAV ();
1762 SV *coro = SvRV (data);
1763
1764 SvRV_set (data, (SV *)av);
1765 api_ready (aTHX_ coro);
1766 SvREFCNT_dec (coro);
1767
1768 /* better take a full copy of the arguments */
1769 while (items--)
1770 av_store (av, items, newSVsv (ST (items)));
1771 }
1772
1773 XSRETURN_EMPTY;
1774}
1775
1739static int 1776static int
1740coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) 1777slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1741{ 1778{
1742 AV *padlist; 1779 SV *data = (SV *)frame->data;
1743 AV *av = (AV *)mg->mg_obj; 1780
1781 if (CORO_THROW)
1782 return 0;
1744 1783
1745 abort (); 1784 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1785 return 1;
1786
1787 /* now push all results on the stack */
1788 {
1789 dSP;
1790 AV *av = (AV *)SvRV (data);
1791 int i;
1792
1793 EXTEND (SP, AvFILLp (av) + 1);
1794 for (i = 0; i <= AvFILLp (av); ++i)
1795 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1796
1797 /* we have stolen the elements, so ste length to zero and free */
1798 AvFILLp (av) = -1;
1799 av_undef (av);
1800
1801 PUTBACK;
1802 }
1746 1803
1747 return 0; 1804 return 0;
1748} 1805}
1749 1806
1750static MGVTBL coro_gensub_vtbl = { 1807static void
1751 0, 0, 0, 0, 1808slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1752 coro_gensub_free 1809{
1753}; 1810 SV *cb;
1754#endif 1811
1812 if (items)
1813 cb = arg [0];
1814 else
1815 {
1816 struct coro *coro = SvSTATE_current;
1817
1818 if (!coro->rouse_cb)
1819 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
1820
1821 cb = sv_2mortal (coro->rouse_cb);
1822 coro->rouse_cb = 0;
1823 }
1824
1825 if (!SvROK (cb)
1826 || SvTYPE (SvRV (cb)) != SVt_PVCV
1827 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1828 croak ("Coro::rouse_wait called with illegal callback argument,");
1829
1830 {
1831 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
1832 SV *data = (SV *)GENSUB_ARG;
1833
1834 frame->data = (void *)data;
1835 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1836 frame->check = slf_check_rouse_wait;
1837 }
1838}
1839
1840static SV *
1841coro_new_rouse_cb (pTHX)
1842{
1843 HV *hv = (HV *)SvRV (coro_current);
1844 struct coro *coro = SvSTATE_hv (hv);
1845 SV *data = newRV_inc ((SV *)hv);
1846 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
1847
1848 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1849 SvREFCNT_dec (data); /* magicext increases the refcount */
1850
1851 SvREFCNT_dec (coro->rouse_cb);
1852 coro->rouse_cb = SvREFCNT_inc_NN (cb);
1853
1854 return cb;
1855}
1856
1857/*****************************************************************************/
1858/* schedule-like-function opcode (SLF) */
1859
1860static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1861static const CV *slf_cv;
1862static SV **slf_argv;
1863static int slf_argc, slf_arga; /* count, allocated */
1864static I32 slf_ax; /* top of stack, for restore */
1865
1866/* this restores the stack in the case we patched the entersub, to */
1867/* recreate the stack frame as perl will on following calls */
1868/* since entersub cleared the stack */
1869static OP *
1870pp_restore (pTHX)
1871{
1872 int i;
1873 SV **SP = PL_stack_base + slf_ax;
1874
1875 PUSHMARK (SP);
1876
1877 EXTEND (SP, slf_argc + 1);
1878
1879 for (i = 0; i < slf_argc; ++i)
1880 PUSHs (sv_2mortal (slf_argv [i]));
1881
1882 PUSHs ((SV *)CvGV (slf_cv));
1883
1884 RETURNOP (slf_restore.op_first);
1885}
1886
1887static void
1888slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1889{
1890 SV **arg = (SV **)slf_frame.data;
1891
1892 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
1893}
1894
1895static void
1896slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1897{
1898 if (items != 2)
1899 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items);
1900
1901 frame->prepare = slf_prepare_transfer;
1902 frame->check = slf_check_nop;
1903 frame->data = (void *)arg; /* let's hope it will stay valid */
1904}
1905
1906static void
1907slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1908{
1909 frame->prepare = prepare_schedule;
1910 frame->check = slf_check_nop;
1911}
1912
1913static void
1914slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1915{
1916 frame->prepare = prepare_cede;
1917 frame->check = slf_check_nop;
1918}
1919
1920static void
1921slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1922{
1923 frame->prepare = prepare_cede_notself;
1924 frame->check = slf_check_nop;
1925}
1926
1927/*
1928 * these not obviously related functions are all rolled into one
1929 * function to increase chances that they all will call transfer with the same
1930 * stack offset
1931 * SLF stands for "schedule-like-function".
1932 */
1933static OP *
1934pp_slf (pTHX)
1935{
1936 I32 checkmark; /* mark SP to see how many elements check has pushed */
1937
1938 /* set up the slf frame, unless it has already been set-up */
1939 /* the latter happens when a new coro has been started */
1940 /* or when a new cctx was attached to an existing coroutine */
1941 if (expect_true (!slf_frame.prepare))
1942 {
1943 /* first iteration */
1944 dSP;
1945 SV **arg = PL_stack_base + TOPMARK + 1;
1946 int items = SP - arg; /* args without function object */
1947 SV *gv = *sp;
1948
1949 /* do a quick consistency check on the "function" object, and if it isn't */
1950 /* for us, divert to the real entersub */
1951 if (SvTYPE (gv) != SVt_PVGV
1952 || !GvCV (gv)
1953 || !(CvFLAGS (GvCV (gv)) & CVf_SLF))
1954 return PL_ppaddr[OP_ENTERSUB](aTHX);
1955
1956 if (!(PL_op->op_flags & OPf_STACKED))
1957 {
1958 /* ampersand-form of call, use @_ instead of stack */
1959 AV *av = GvAV (PL_defgv);
1960 arg = AvARRAY (av);
1961 items = AvFILLp (av) + 1;
1962 }
1963
1964 /* now call the init function, which needs to set up slf_frame */
1965 ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr)
1966 (aTHX_ &slf_frame, GvCV (gv), arg, items);
1967
1968 /* pop args */
1969 SP = PL_stack_base + POPMARK;
1970
1971 PUTBACK;
1972 }
1973
1974 /* now that we have a slf_frame, interpret it! */
1975 /* we use a callback system not to make the code needlessly */
1976 /* complicated, but so we can run multiple perl coros from one cctx */
1977
1978 do
1979 {
1980 struct coro_transfer_args ta;
1981
1982 slf_frame.prepare (aTHX_ &ta);
1983 TRANSFER (ta, 0);
1984
1985 checkmark = PL_stack_sp - PL_stack_base;
1986 }
1987 while (slf_frame.check (aTHX_ &slf_frame));
1988
1989 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1990
1991 /* exception handling */
1992 if (expect_false (CORO_THROW))
1993 {
1994 SV *exception = sv_2mortal (CORO_THROW);
1995
1996 CORO_THROW = 0;
1997 sv_setsv (ERRSV, exception);
1998 croak (0);
1999 }
2000
2001 /* return value handling - mostly like entersub */
2002 /* make sure we put something on the stack in scalar context */
2003 if (GIMME_V == G_SCALAR)
2004 {
2005 dSP;
2006 SV **bot = PL_stack_base + checkmark;
2007
2008 if (sp == bot) /* too few, push undef */
2009 bot [1] = &PL_sv_undef;
2010 else if (sp != bot + 1) /* too many, take last one */
2011 bot [1] = *sp;
2012
2013 SP = bot + 1;
2014
2015 PUTBACK;
2016 }
2017
2018 return NORMAL;
2019}
2020
2021static void
2022api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax)
2023{
2024 int i;
2025 SV **arg = PL_stack_base + ax;
2026 int items = PL_stack_sp - arg + 1;
2027
2028 assert (("FATAL: SLF call with illegal CV value", !CvANON (cv)));
2029
2030 if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
2031 && PL_op->op_ppaddr != pp_slf)
2032 croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
2033
2034 CvFLAGS (cv) |= CVf_SLF;
2035 CvXSUBANY (cv).any_ptr = (void *)init_cb;
2036 slf_cv = cv;
2037
2038 /* we patch the op, and then re-run the whole call */
2039 /* we have to put the same argument on the stack for this to work */
2040 /* and this will be done by pp_restore */
2041 slf_restore.op_next = (OP *)&slf_restore;
2042 slf_restore.op_type = OP_CUSTOM;
2043 slf_restore.op_ppaddr = pp_restore;
2044 slf_restore.op_first = PL_op;
2045
2046 slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */
2047
2048 if (PL_op->op_flags & OPf_STACKED)
2049 {
2050 if (items > slf_arga)
2051 {
2052 slf_arga = items;
2053 free (slf_argv);
2054 slf_argv = malloc (slf_arga * sizeof (SV *));
2055 }
2056
2057 slf_argc = items;
2058
2059 for (i = 0; i < items; ++i)
2060 slf_argv [i] = SvREFCNT_inc (arg [i]);
2061 }
2062 else
2063 slf_argc = 0;
2064
2065 PL_op->op_ppaddr = pp_slf;
2066 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */
2067
2068 PL_op = (OP *)&slf_restore;
2069}
1755 2070
1756/*****************************************************************************/ 2071/*****************************************************************************/
1757/* PerlIO::cede */ 2072/* PerlIO::cede */
1758 2073
1759typedef struct 2074typedef struct
… …
1827 PerlIOBuf_get_cnt, 2142 PerlIOBuf_get_cnt,
1828 PerlIOBuf_set_ptrcnt, 2143 PerlIOBuf_set_ptrcnt,
1829}; 2144};
1830 2145
1831/*****************************************************************************/ 2146/*****************************************************************************/
2147/* Coro::Semaphore & Coro::Signal */
1832 2148
1833static const CV *slf_cv; /* for quick consistency check */
1834
1835static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1836static SV *slf_arg0;
1837static SV *slf_arg1;
1838
1839/* this restores the stack in the case we patched the entersub, to */
1840/* recreate the stack frame as perl will on following calls */
1841/* since entersub cleared the stack */
1842static OP * 2149static SV *
1843pp_restore (pTHX) 2150coro_waitarray_new (pTHX_ int count)
1844{ 2151{
1845 dSP; 2152 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2153 AV *av = newAV ();
2154 SV **ary;
1846 2155
1847 PUSHMARK (SP); 2156 /* unfortunately, building manually saves memory */
2157 Newx (ary, 2, SV *);
2158 AvALLOC (av) = ary;
2159 /*AvARRAY (av) = ary;*/
2160 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
2161 AvMAX (av) = 1;
2162 AvFILLp (av) = 0;
2163 ary [0] = newSViv (count);
1848 2164
1849 EXTEND (SP, 3); 2165 return newRV_noinc ((SV *)av);
1850 if (slf_arg0) PUSHs (sv_2mortal (slf_arg0));
1851 if (slf_arg1) PUSHs (sv_2mortal (slf_arg1));
1852 PUSHs ((SV *)CvGV (slf_cv));
1853
1854 RETURNOP (slf_restore.op_first);
1855} 2166}
1856 2167
1857static void 2168/* semaphore */
1858slf_init_set_stacklevel (pTHX_ SV **arg, int items)
1859{
1860 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1861 CORO_SLF_DATA = (void *)SvIV (arg [0]);
1862}
1863 2169
1864static void 2170static void
1865slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 2171coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
1866{ 2172{
1867 prepare_set_stacklevel (ta, (struct coro_cctx *)CORO_SLF_DATA); 2173 SV *count_sv = AvARRAY (av)[0];
1868} 2174 IV count = SvIVX (count_sv);
1869 2175
1870static void 2176 count += adjust;
1871slf_init_transfer (pTHX_ SV **arg, int items) 2177 SvIVX (count_sv) = count;
1872{
1873 if (items != 2)
1874 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1875 2178
1876 CORO_SLF_DATA = (void *)arg; /* let's hope it will stay valid */ 2179 /* now wake up as many waiters as are expected to lock */
1877} 2180 while (count > 0 && AvFILLp (av) > 0)
1878
1879static void
1880slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1881{
1882 SV **arg = (SV **)CORO_SLF_DATA;
1883
1884 prepare_transfer (ta, arg [0], arg [1]);
1885}
1886
1887static void
1888slf_init_nop (pTHX_ SV **arg, int items)
1889{
1890}
1891
1892/* slf_prepare_schedule == prepare_schedule */
1893/* slf_prepare_cede == prepare_cede */
1894/* slf_prepare_notself == prepare_notself */
1895
1896/* we hijack an hopefully unused CV flag for our purposes */
1897#define CVf_SLF 0x4000
1898
1899/*
1900 * these not obviously related functions are all rolled into one
1901 * function to increase chances that they all will call transfer with the same
1902 * stack offset
1903 * SLF stands for "schedule-like-function".
1904 */
1905static OP *
1906pp_slf (pTHX)
1907{
1908 I32 checkmark; /* mark SP to see how many elements check has pushed */
1909
1910 if (expect_true (!slf_frame.prepare))
1911 { 2181 {
1912 /* first iteration */ 2182 SV *cb;
1913 dSP;
1914 SV **arg = PL_stack_base + TOPMARK + 1;
1915 int items = SP - arg; /* args without function object */
1916 SV *gv = *sp;
1917 struct CoroSLF *slf;
1918 2183
1919 /* do a quick consistency check on the "function" object, and if it isn't */ 2184 /* swap first two elements so we can shift a waiter */
1920 /* for us, divert to the real entersub */ 2185 AvARRAY (av)[0] = AvARRAY (av)[1];
1921 if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) 2186 AvARRAY (av)[1] = count_sv;
1922 return PL_ppaddr[OP_ENTERSUB](aTHX); 2187 cb = av_shift (av);
1923 2188
1924 /* pop args */ 2189 if (SvOBJECT (cb))
1925 SP = PL_stack_base + POPMARK;
1926
1927 if (!(PL_op->op_flags & OPf_STACKED))
1928 { 2190 {
1929 /* ampersand-form of call, use @_ instead of stack */ 2191 api_ready (aTHX_ cb);
1930 AV *av = GvAV (PL_defgv); 2192 --count;
1931 arg = AvARRAY (av);
1932 items = AvFILLp (av) + 1;
1933 } 2193 }
1934 2194 else if (SvTYPE (cb) == SVt_PVCV)
2195 {
2196 dSP;
2197 PUSHMARK (SP);
2198 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
1935 PUTBACK; 2199 PUTBACK;
2200 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2201 }
1936 2202
1937 slf = (struct CoroSLF *)CvXSUBANY (GvCV (gv)).any_ptr; 2203 SvREFCNT_dec (cb);
1938 slf_frame.prepare = slf->prepare;
1939 slf_frame.check = slf->check;
1940 slf->init (aTHX_ arg, items);
1941 }
1942
1943 /* now interpret the slf_frame */
1944 /* we use a callback system not to make the code needlessly */
1945 /* complicated, but so we can run multiple perl coros from one cctx */
1946
1947 do
1948 { 2204 }
1949 struct coro_transfer_args ta; 2205}
1950 2206
1951 slf_frame.prepare (aTHX_ &ta); 2207static void
1952 TRANSFER (ta, 0); 2208coro_semaphore_on_destroy (pTHX_ struct coro *coro)
2209{
2210 /* call $sem->adjust (0) to possibly wake up some other waiters */
2211 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2212}
1953 2213
1954 checkmark = PL_stack_sp - PL_stack_base; 2214static int
2215slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2216{
2217 AV *av = (AV *)frame->data;
2218 SV *count_sv = AvARRAY (av)[0];
2219
2220 /* if we are about to throw, don't actually acquire the lock, just throw */
2221 if (CORO_THROW)
2222 return 0;
2223 else if (SvIVX (count_sv) > 0)
1955 } 2224 {
1956 while (slf_frame.check (aTHX)); 2225 SvSTATE_current->on_destroy = 0;
1957 2226
2227 if (acquire)
2228 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2229 else
2230 coro_semaphore_adjust (aTHX_ av, 0);
2231
2232 return 0;
2233 }
2234 else
2235 {
2236 int i;
2237 /* if we were woken up but can't down, we look through the whole */
2238 /* waiters list and only add us if we aren't in there already */
2239 /* this avoids some degenerate memory usage cases */
2240
2241 for (i = 1; i <= AvFILLp (av); ++i)
2242 if (AvARRAY (av)[i] == SvRV (coro_current))
2243 return 1;
2244
2245 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2246 return 1;
2247 }
2248}
2249
2250static int
2251slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2252{
2253 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2254}
2255
2256static int
2257slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2258{
2259 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2260}
2261
2262static void
2263slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2264{
2265 AV *av = (AV *)SvRV (arg [0]);
2266
2267 if (SvIVX (AvARRAY (av)[0]) > 0)
2268 {
2269 frame->data = (void *)av;
2270 frame->prepare = prepare_nop;
2271 }
2272 else
2273 {
2274 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2275
2276 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2277 frame->prepare = prepare_schedule;
2278
2279 /* to avoid race conditions when a woken-up coro gets terminated */
2280 /* we arrange for a temporary on_destroy that calls adjust (0) */
2281 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2282 }
2283}
2284
2285static void
2286slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2287{
2288 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2289 frame->check = slf_check_semaphore_down;
2290}
2291
2292static void
2293slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2294{
2295 if (items >= 2)
2296 {
2297 /* callback form */
2298 AV *av = (AV *)SvRV (arg [0]);
2299 CV *cb_cv = coro_sv_2cv (arg [1]);
2300
2301 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2302
2303 if (SvIVX (AvARRAY (av)[0]) > 0)
2304 coro_semaphore_adjust (aTHX_ av, 0);
2305
2306 frame->prepare = prepare_nop;
2307 frame->check = slf_check_nop;
2308 }
2309 else
2310 {
2311 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2312 frame->check = slf_check_semaphore_wait;
2313 }
2314}
2315
2316/* signal */
2317
2318static void
2319coro_signal_wake (pTHX_ AV *av, int count)
2320{
2321 SvIVX (AvARRAY (av)[0]) = 0;
2322
2323 /* now signal count waiters */
2324 while (count > 0 && AvFILLp (av) > 0)
2325 {
2326 SV *cb;
2327
2328 /* swap first two elements so we can shift a waiter */
2329 cb = AvARRAY (av)[0];
2330 AvARRAY (av)[0] = AvARRAY (av)[1];
2331 AvARRAY (av)[1] = cb;
2332
2333 cb = av_shift (av);
2334
2335 api_ready (aTHX_ cb);
2336 sv_setiv (cb, 0); /* signal waiter */
2337 SvREFCNT_dec (cb);
2338
2339 --count;
2340 }
2341}
2342
2343static int
2344slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2345{
2346 /* if we are about to throw, also stop waiting */
2347 return SvROK ((SV *)frame->data) && !CORO_THROW;
2348}
2349
2350static void
2351slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2352{
2353 AV *av = (AV *)SvRV (arg [0]);
2354
2355 if (SvIVX (AvARRAY (av)[0]))
2356 {
2357 SvIVX (AvARRAY (av)[0]) = 0;
2358 frame->prepare = prepare_nop;
2359 frame->check = slf_check_nop;
2360 }
2361 else
2362 {
2363 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2364
2365 av_push (av, waiter);
2366
2367 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2368 frame->prepare = prepare_schedule;
2369 frame->check = slf_check_signal_wait;
2370 }
2371}
2372
2373/*****************************************************************************/
2374/* Coro::AIO */
2375
2376#define CORO_MAGIC_type_aio PERL_MAGIC_ext
2377
2378/* helper storage struct */
2379struct io_state
2380{
2381 int errorno;
2382 I32 laststype; /* U16 in 5.10.0 */
2383 int laststatval;
2384 Stat_t statcache;
2385};
2386
2387static void
2388coro_aio_callback (pTHX_ CV *cv)
2389{
2390 dXSARGS;
2391 AV *state = (AV *)GENSUB_ARG;
2392 SV *coro = av_pop (state);
2393 SV *data_sv = newSV (sizeof (struct io_state));
2394
2395 av_extend (state, items);
2396
2397 sv_upgrade (data_sv, SVt_PV);
2398 SvCUR_set (data_sv, sizeof (struct io_state));
2399 SvPOK_only (data_sv);
2400
2401 {
2402 struct io_state *data = (struct io_state *)SvPVX (data_sv);
2403
2404 data->errorno = errno;
2405 data->laststype = PL_laststype;
2406 data->laststatval = PL_laststatval;
2407 data->statcache = PL_statcache;
2408 }
2409
2410 /* now build the result vector out of all the parameters and the data_sv */
2411 {
2412 int i;
2413
2414 for (i = 0; i < items; ++i)
2415 av_push (state, SvREFCNT_inc_NN (ST (i)));
2416 }
2417
2418 av_push (state, data_sv);
2419
2420 api_ready (aTHX_ coro);
2421 SvREFCNT_dec (coro);
2422 SvREFCNT_dec ((AV *)state);
2423}
2424
2425static int
2426slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2427{
2428 AV *state = (AV *)frame->data;
2429
2430 /* if we are about to throw, return early */
2431 /* this does not cancel the aio request, but at least */
2432 /* it quickly returns */
2433 if (CORO_THROW)
2434 return 0;
2435
2436 /* one element that is an RV? repeat! */
2437 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2438 return 1;
2439
2440 /* restore status */
2441 {
2442 SV *data_sv = av_pop (state);
2443 struct io_state *data = (struct io_state *)SvPVX (data_sv);
2444
2445 errno = data->errorno;
2446 PL_laststype = data->laststype;
2447 PL_laststatval = data->laststatval;
2448 PL_statcache = data->statcache;
2449
2450 SvREFCNT_dec (data_sv);
2451 }
2452
2453 /* push result values */
1958 { 2454 {
1959 dSP; 2455 dSP;
1960 SV **bot = PL_stack_base + checkmark; 2456 int i;
1961 int gimme = GIMME_V;
1962 2457
1963 slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */ 2458 EXTEND (SP, AvFILLp (state) + 1);
1964 2459 for (i = 0; i <= AvFILLp (state); ++i)
1965 /* make sure we put something on the stack in scalar context */ 2460 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i])));
1966 if (gimme == G_SCALAR)
1967 {
1968 if (sp == bot)
1969 XPUSHs (&PL_sv_undef);
1970
1971 SP = bot + 1;
1972 }
1973 2461
1974 PUTBACK; 2462 PUTBACK;
1975 } 2463 }
1976 2464
1977 return NORMAL; 2465 return 0;
1978} 2466}
1979 2467
1980static void 2468static void
1981api_execute_slf (pTHX_ CV *cv, const struct CoroSLF *slf, SV **arg, int items) 2469slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1982{ 2470{
1983 assert (("FATAL: SLF call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_slf)); 2471 AV *state = (AV *)sv_2mortal ((SV *)newAV ());
1984 assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); 2472 SV *coro_hv = SvRV (coro_current);
2473 struct coro *coro = SvSTATE_hv (coro_hv);
1985 2474
1986 if (items > 2) 2475 /* put our coroutine id on the state arg */
1987 croak ("Coro only supports a max of two arguments to SLF functions."); 2476 av_push (state, SvREFCNT_inc_NN (coro_hv));
1988 2477
1989 CvFLAGS (cv) |= CVf_SLF; 2478 /* first see whether we have a non-zero priority and set it as AIO prio */
1990 CvXSUBANY (cv).any_ptr = (void *)slf; 2479 if (coro->prio)
1991 slf_cv = cv; 2480 {
2481 dSP;
1992 2482
1993 /* we patch the op, and then re-run the whole call */ 2483 static SV *prio_cv;
1994 /* we have to put the same argument on the stack for this to work */ 2484 static SV *prio_sv;
1995 /* and this will be done by pp_restore */
1996 slf_restore.op_next = (OP *)&slf_restore;
1997 slf_restore.op_type = OP_NULL;
1998 slf_restore.op_ppaddr = pp_restore;
1999 slf_restore.op_first = PL_op;
2000 2485
2001 slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; 2486 if (expect_false (!prio_cv))
2002 slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; 2487 {
2488 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2489 prio_sv = newSViv (0);
2490 }
2003 2491
2004 PL_op->op_ppaddr = pp_slf; 2492 PUSHMARK (SP);
2493 sv_setiv (prio_sv, coro->prio);
2494 XPUSHs (prio_sv);
2005 2495
2006 PL_op = (OP *)&slf_restore; 2496 PUTBACK;
2497 call_sv (prio_cv, G_VOID | G_DISCARD);
2498 }
2499
2500 /* now call the original request */
2501 {
2502 dSP;
2503 CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj;
2504 int i;
2505
2506 PUSHMARK (SP);
2507
2508 /* first push all args to the stack */
2509 EXTEND (SP, items + 1);
2510
2511 for (i = 0; i < items; ++i)
2512 PUSHs (arg [i]);
2513
2514 /* now push the callback closure */
2515 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2516
2517 /* now call the AIO function - we assume our request is uncancelable */
2518 PUTBACK;
2519 call_sv ((SV *)req, G_VOID | G_DISCARD);
2520 }
2521
2522 /* now that the requets is going, we loop toll we have a result */
2523 frame->data = (void *)state;
2524 frame->prepare = prepare_schedule;
2525 frame->check = slf_check_aio_req;
2007} 2526}
2527
2528static void
2529coro_aio_req_xs (pTHX_ CV *cv)
2530{
2531 dXSARGS;
2532
2533 CORO_EXECUTE_SLF_XS (slf_init_aio_req);
2534
2535 XSRETURN_EMPTY;
2536}
2537
2538/*****************************************************************************/
2008 2539
2009MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2540MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2010 2541
2011PROTOTYPES: DISABLE 2542PROTOTYPES: DISABLE
2012 2543
2013BOOT: 2544BOOT:
2014{ 2545{
2015#ifdef USE_ITHREADS 2546#ifdef USE_ITHREADS
2016 MUTEX_INIT (&coro_lock);
2017# if CORO_PTHREAD 2547# if CORO_PTHREAD
2018 coro_thx = PERL_GET_CONTEXT; 2548 coro_thx = PERL_GET_CONTEXT;
2019# endif 2549# endif
2020#endif 2550#endif
2021 BOOT_PAGESIZE; 2551 BOOT_PAGESIZE;
… …
2042 main_top_env = PL_top_env; 2572 main_top_env = PL_top_env;
2043 2573
2044 while (main_top_env->je_prev) 2574 while (main_top_env->je_prev)
2045 main_top_env = main_top_env->je_prev; 2575 main_top_env = main_top_env->je_prev;
2046 2576
2577 {
2578 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2579
2580 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2581 hv_store_ent (PL_custom_op_names, slf,
2582 newSVpv ("coro_slf", 0), 0);
2583
2584 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2585 hv_store_ent (PL_custom_op_descs, slf,
2586 newSVpv ("coro schedule like function", 0), 0);
2587 }
2588
2047 coroapi.ver = CORO_API_VERSION; 2589 coroapi.ver = CORO_API_VERSION;
2048 coroapi.rev = CORO_API_REVISION; 2590 coroapi.rev = CORO_API_REVISION;
2591
2049 coroapi.transfer = api_transfer; 2592 coroapi.transfer = api_transfer;
2593
2594 coroapi.sv_state = SvSTATE_;
2050 coroapi.execute_slf = api_execute_slf; 2595 coroapi.execute_slf = api_execute_slf;
2051 coroapi.sv_state = SvSTATE_; 2596 coroapi.prepare_nop = prepare_nop;
2597 coroapi.prepare_schedule = prepare_schedule;
2598 coroapi.prepare_cede = prepare_cede;
2599 coroapi.prepare_cede_notself = prepare_cede_notself;
2052 2600
2053 { 2601 {
2054 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); 2602 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2055 2603
2056 if (!svp) croak ("Time::HiRes is required"); 2604 if (!svp) croak ("Time::HiRes is required");
… …
2067 CODE: 2615 CODE:
2068{ 2616{
2069 struct coro *coro; 2617 struct coro *coro;
2070 MAGIC *mg; 2618 MAGIC *mg;
2071 HV *hv; 2619 HV *hv;
2620 CV *cb;
2072 int i; 2621 int i;
2622
2623 if (items > 1)
2624 {
2625 cb = coro_sv_2cv (ST (1));
2626
2627 if (CvISXSUB (cb))
2628 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2629
2630 if (!CvROOT (cb))
2631 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2632 }
2073 2633
2074 Newz (0, coro, 1, struct coro); 2634 Newz (0, coro, 1, struct coro);
2075 coro->args = newAV (); 2635 coro->args = newAV ();
2076 coro->flags = CF_NEW; 2636 coro->flags = CF_NEW;
2077 2637
… …
2082 coro->hv = hv = newHV (); 2642 coro->hv = hv = newHV ();
2083 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 2643 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2084 mg->mg_flags |= MGf_DUP; 2644 mg->mg_flags |= MGf_DUP;
2085 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2645 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2086 2646
2647 if (items > 1)
2648 {
2649 coro->startcv = SvREFCNT_inc_NN (cb);
2650
2087 av_extend (coro->args, items - 1); 2651 av_extend (coro->args, items - 1);
2652 av_push (coro->args, SvREFCNT_inc (cb));
2088 for (i = 1; i < items; i++) 2653 for (i = 2; i < items; i++)
2089 av_push (coro->args, newSVsv (ST (i))); 2654 av_push (coro->args, newSVsv (ST (i)));
2655 }
2090} 2656}
2091 OUTPUT: 2657 OUTPUT:
2092 RETVAL 2658 RETVAL
2093 2659
2094void 2660void
2095_set_stacklevel (...) 2661transfer (...)
2662 PROTOTYPE: $$
2096 CODE: 2663 CODE:
2097{ 2664 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2098 static struct CoroSLF slf = { slf_init_set_stacklevel, slf_prepare_set_stacklevel, slf_check_nop };
2099 api_execute_slf (aTHX_ cv, &slf, &ST (0), items);
2100}
2101
2102void
2103transfer (...)
2104 CODE:
2105{
2106 static struct CoroSLF slf = { slf_init_transfer, slf_prepare_transfer, slf_check_nop };
2107 api_execute_slf (aTHX_ cv, &slf, &ST (0), items);
2108}
2109 2665
2110bool 2666bool
2111_destroy (SV *coro_sv) 2667_destroy (SV *coro_sv)
2112 CODE: 2668 CODE:
2113 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2669 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
2120 CODE: 2676 CODE:
2121 _exit (code); 2677 _exit (code);
2122 2678
2123int 2679int
2124cctx_stacksize (int new_stacksize = 0) 2680cctx_stacksize (int new_stacksize = 0)
2681 PROTOTYPE: ;$
2125 CODE: 2682 CODE:
2126 RETVAL = cctx_stacksize; 2683 RETVAL = cctx_stacksize;
2127 if (new_stacksize) 2684 if (new_stacksize)
2128 { 2685 {
2129 cctx_stacksize = new_stacksize; 2686 cctx_stacksize = new_stacksize;
… …
2132 OUTPUT: 2689 OUTPUT:
2133 RETVAL 2690 RETVAL
2134 2691
2135int 2692int
2136cctx_max_idle (int max_idle = 0) 2693cctx_max_idle (int max_idle = 0)
2694 PROTOTYPE: ;$
2137 CODE: 2695 CODE:
2138 RETVAL = cctx_max_idle; 2696 RETVAL = cctx_max_idle;
2139 if (max_idle > 1) 2697 if (max_idle > 1)
2140 cctx_max_idle = max_idle; 2698 cctx_max_idle = max_idle;
2141 OUTPUT: 2699 OUTPUT:
2142 RETVAL 2700 RETVAL
2143 2701
2144int 2702int
2145cctx_count () 2703cctx_count ()
2704 PROTOTYPE:
2146 CODE: 2705 CODE:
2147 RETVAL = cctx_count; 2706 RETVAL = cctx_count;
2148 OUTPUT: 2707 OUTPUT:
2149 RETVAL 2708 RETVAL
2150 2709
2151int 2710int
2152cctx_idle () 2711cctx_idle ()
2712 PROTOTYPE:
2153 CODE: 2713 CODE:
2154 RETVAL = cctx_idle; 2714 RETVAL = cctx_idle;
2155 OUTPUT: 2715 OUTPUT:
2156 RETVAL 2716 RETVAL
2157 2717
2158void 2718void
2159list () 2719list ()
2720 PROTOTYPE:
2160 PPCODE: 2721 PPCODE:
2161{ 2722{
2162 struct coro *coro; 2723 struct coro *coro;
2163 for (coro = coro_first; coro; coro = coro->next) 2724 for (coro = coro_first; coro; coro = coro->next)
2164 if (coro->hv) 2725 if (coro->hv)
… …
2226 2787
2227void 2788void
2228throw (Coro::State self, SV *throw = &PL_sv_undef) 2789throw (Coro::State self, SV *throw = &PL_sv_undef)
2229 PROTOTYPE: $;$ 2790 PROTOTYPE: $;$
2230 CODE: 2791 CODE:
2792{
2793 struct coro *current = SvSTATE_current;
2794 SV **throwp = self == current ? &CORO_THROW : &self->except;
2231 SvREFCNT_dec (self->throw); 2795 SvREFCNT_dec (*throwp);
2232 self->throw = SvOK (throw) ? newSVsv (throw) : 0; 2796 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2797}
2233 2798
2234void 2799void
2235api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2800api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2801 PROTOTYPE: $;$
2236 C_ARGS: aTHX_ coro, flags 2802 C_ARGS: aTHX_ coro, flags
2237 2803
2238SV * 2804SV *
2239has_cctx (Coro::State coro) 2805has_cctx (Coro::State coro)
2240 PROTOTYPE: $ 2806 PROTOTYPE: $
… …
2265 OUTPUT: 2831 OUTPUT:
2266 RETVAL 2832 RETVAL
2267 2833
2268void 2834void
2269force_cctx () 2835force_cctx ()
2836 PROTOTYPE:
2270 CODE: 2837 CODE:
2271 struct coro *coro = SvSTATE (coro_current);
2272 coro->cctx->idle_sp = 0; 2838 SvSTATE_current->cctx->idle_sp = 0;
2273 2839
2274void 2840void
2275swap_defsv (Coro::State self) 2841swap_defsv (Coro::State self)
2276 PROTOTYPE: $ 2842 PROTOTYPE: $
2277 ALIAS: 2843 ALIAS:
2278 swap_defav = 1 2844 swap_defav = 1
2279 CODE: 2845 CODE:
2280 if (!self->slot) 2846 if (!self->slot)
2281 croak ("cannot swap state with coroutine that has no saved state"); 2847 croak ("cannot swap state with coroutine that has no saved state,");
2282 else 2848 else
2283 { 2849 {
2284 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); 2850 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
2285 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 2851 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2286 2852
2287 SV *tmp = *src; *src = *dst; *dst = tmp; 2853 SV *tmp = *src; *src = *dst; *dst = tmp;
2288 } 2854 }
2855
2289 2856
2290MODULE = Coro::State PACKAGE = Coro 2857MODULE = Coro::State PACKAGE = Coro
2291 2858
2292BOOT: 2859BOOT:
2293{ 2860{
… …
2321 coroapi.ready = api_ready; 2888 coroapi.ready = api_ready;
2322 coroapi.is_ready = api_is_ready; 2889 coroapi.is_ready = api_is_ready;
2323 coroapi.nready = coro_nready; 2890 coroapi.nready = coro_nready;
2324 coroapi.current = coro_current; 2891 coroapi.current = coro_current;
2325 2892
2326 GCoroAPI = &coroapi; 2893 /*GCoroAPI = &coroapi;*/
2327 sv_setiv (sv, (IV)&coroapi); 2894 sv_setiv (sv, (IV)&coroapi);
2328 SvREADONLY_on (sv); 2895 SvREADONLY_on (sv);
2329 } 2896 }
2330} 2897}
2331 2898
2332void 2899void
2333schedule (...) 2900schedule (...)
2334 CODE: 2901 CODE:
2335{ 2902 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2336 static struct CoroSLF slf = { slf_init_nop, prepare_schedule, slf_check_nop };
2337 api_execute_slf (aTHX_ cv, &slf, &ST (0), items);
2338}
2339 2903
2340void 2904void
2341cede (...) 2905cede (...)
2342 CODE: 2906 CODE:
2343{ 2907 CORO_EXECUTE_SLF_XS (slf_init_cede);
2344 static struct CoroSLF slf = { slf_init_nop, prepare_cede, slf_check_nop };
2345 api_execute_slf (aTHX_ cv, &slf, &ST (0), items);
2346}
2347 2908
2348void 2909void
2349cede_notself (...) 2910cede_notself (...)
2350 CODE: 2911 CODE:
2351{ 2912 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
2352 static struct CoroSLF slf = { slf_init_nop, prepare_cede_notself, slf_check_nop };
2353 api_execute_slf (aTHX_ cv, &slf, &ST (0), items);
2354}
2355 2913
2356void 2914void
2357_set_current (SV *current) 2915_set_current (SV *current)
2358 PROTOTYPE: $ 2916 PROTOTYPE: $
2359 CODE: 2917 CODE:
… …
2362 2920
2363void 2921void
2364_set_readyhook (SV *hook) 2922_set_readyhook (SV *hook)
2365 PROTOTYPE: $ 2923 PROTOTYPE: $
2366 CODE: 2924 CODE:
2367 LOCK;
2368 SvREFCNT_dec (coro_readyhook); 2925 SvREFCNT_dec (coro_readyhook);
2369 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 2926 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2370 UNLOCK;
2371 2927
2372int 2928int
2373prio (Coro::State coro, int newprio = 0) 2929prio (Coro::State coro, int newprio = 0)
2930 PROTOTYPE: $;$
2374 ALIAS: 2931 ALIAS:
2375 nice = 1 2932 nice = 1
2376 CODE: 2933 CODE:
2377{ 2934{
2378 RETVAL = coro->prio; 2935 RETVAL = coro->prio;
… …
2410# for async_pool speedup 2967# for async_pool speedup
2411void 2968void
2412_pool_1 (SV *cb) 2969_pool_1 (SV *cb)
2413 CODE: 2970 CODE:
2414{ 2971{
2415 struct coro *coro = SvSTATE (coro_current);
2416 HV *hv = (HV *)SvRV (coro_current); 2972 HV *hv = (HV *)SvRV (coro_current);
2973 struct coro *coro = SvSTATE_hv ((SV *)hv);
2417 AV *defav = GvAV (PL_defgv); 2974 AV *defav = GvAV (PL_defgv);
2418 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 2975 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2419 AV *invoke_av; 2976 AV *invoke_av;
2420 int i, len; 2977 int i, len;
2421 2978
… …
2442 { 2999 {
2443 av_fill (defav, len - 1); 3000 av_fill (defav, len - 1);
2444 for (i = 0; i < len; ++i) 3001 for (i = 0; i < len; ++i)
2445 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3002 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
2446 } 3003 }
2447
2448 SvREFCNT_dec (invoke);
2449} 3004}
2450 3005
2451void 3006void
2452_pool_2 (SV *cb) 3007_pool_2 (SV *cb)
2453 CODE: 3008 CODE:
2454{ 3009{
2455 struct coro *coro = SvSTATE (coro_current); 3010 HV *hv = (HV *)SvRV (coro_current);
3011 struct coro *coro = SvSTATE_hv ((SV *)hv);
2456 3012
2457 sv_setsv (cb, &PL_sv_undef); 3013 sv_setsv (cb, &PL_sv_undef);
2458 3014
2459 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3015 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2460 coro->saved_deffh = 0; 3016 coro->saved_deffh = 0;
… …
2467 SvREFCNT_dec (old); 3023 SvREFCNT_dec (old);
2468 croak ("\3async_pool terminate\2\n"); 3024 croak ("\3async_pool terminate\2\n");
2469 } 3025 }
2470 3026
2471 av_clear (GvAV (PL_defgv)); 3027 av_clear (GvAV (PL_defgv));
2472 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 3028 hv_store (hv, "desc", sizeof ("desc") - 1,
2473 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 3029 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2474 3030
2475 coro->prio = 0; 3031 coro->prio = 0;
2476 3032
2477 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 3033 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2478 api_trace (aTHX_ coro_current, 0); 3034 api_trace (aTHX_ coro_current, 0);
2479 3035
2480 av_push (av_async_pool, newSVsv (coro_current)); 3036 av_push (av_async_pool, newSVsv (coro_current));
2481} 3037}
2482 3038
2483#if 0
2484
2485void
2486_generator_call (...)
2487 PROTOTYPE: @
2488 PPCODE:
2489 fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
2490 xxxx
2491 abort ();
2492
2493SV * 3039SV *
2494gensub (SV *sub, ...) 3040rouse_cb ()
2495 PROTOTYPE: &;@ 3041 PROTOTYPE:
2496 CODE: 3042 CODE:
2497{ 3043 RETVAL = coro_new_rouse_cb (aTHX);
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: 3044 OUTPUT:
2527 RETVAL 3045 RETVAL
2528 3046
2529#endif
2530
2531
2532MODULE = Coro::State PACKAGE = Coro::AIO
2533
2534void 3047void
2535_get_state (SV *self) 3048rouse_wait (...)
3049 PROTOTYPE: ;$
2536 PPCODE: 3050 PPCODE:
2537{ 3051 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 3052
2546 data->errorno = errno;
2547 data->laststype = PL_laststype;
2548 data->laststatval = PL_laststatval;
2549 data->statcache = PL_statcache;
2550 3053
2551 av_extend (av, AvFILLp (defav) + 1 + 1); 3054MODULE = Coro::State PACKAGE = PerlIO::cede
2552 3055
2553 for (i = 0; i <= AvFILLp (defav); ++i) 3056BOOT:
2554 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); 3057 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2555 3058
2556 av_push (av, data_sv);
2557 3059
2558 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 3060MODULE = Coro::State PACKAGE = Coro::Semaphore
2559 3061
2560 api_ready (aTHX_ self); 3062SV *
2561} 3063new (SV *klass, SV *count = 0)
3064 CODE:
3065 RETVAL = sv_bless (
3066 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
3067 GvSTASH (CvGV (cv))
3068 );
3069 OUTPUT:
3070 RETVAL
3071
3072# helper for Coro::Channel
3073SV *
3074_alloc (int count)
3075 CODE:
3076 RETVAL = coro_waitarray_new (aTHX_ count);
3077 OUTPUT:
3078 RETVAL
3079
3080SV *
3081count (SV *self)
3082 CODE:
3083 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3084 OUTPUT:
3085 RETVAL
2562 3086
2563void 3087void
2564_set_state (SV *state) 3088up (SV *self, int adjust = 1)
2565 PROTOTYPE: $ 3089 ALIAS:
3090 adjust = 1
3091 CODE:
3092 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
3093
3094void
3095down (...)
3096 CODE:
3097 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3098
3099void
3100wait (...)
3101 CODE:
3102 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
3103
3104void
3105try (SV *self)
3106 PPCODE:
3107{
3108 AV *av = (AV *)SvRV (self);
3109 SV *count_sv = AvARRAY (av)[0];
3110 IV count = SvIVX (count_sv);
3111
3112 if (count > 0)
3113 {
3114 --count;
3115 SvIVX (count_sv) = count;
3116 XSRETURN_YES;
3117 }
3118 else
3119 XSRETURN_NO;
3120}
3121
3122void
3123waiters (SV *self)
3124 PPCODE:
3125{
3126 AV *av = (AV *)SvRV (self);
3127 int wcount = AvFILLp (av) + 1 - 1;
3128
3129 if (GIMME_V == G_SCALAR)
3130 XPUSHs (sv_2mortal (newSViv (wcount)));
3131 else
3132 {
3133 int i;
3134 EXTEND (SP, wcount);
3135 for (i = 1; i <= wcount; ++i)
3136 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3137 }
3138}
3139
3140MODULE = Coro::State PACKAGE = Coro::Signal
3141
3142SV *
3143new (SV *klass)
2566 PPCODE: 3144 CODE:
3145 RETVAL = sv_bless (
3146 coro_waitarray_new (aTHX_ 0),
3147 GvSTASH (CvGV (cv))
3148 );
3149 OUTPUT:
3150 RETVAL
3151
3152void
3153wait (...)
3154 CODE:
3155 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3156
3157void
3158broadcast (SV *self)
3159 CODE:
2567{ 3160{
2568 AV *av = (AV *)SvRV (state); 3161 AV *av = (AV *)SvRV (self);
2569 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); 3162 coro_signal_wake (aTHX_ av, AvFILLp (av));
2570 int i; 3163}
2571 3164
2572 errno = data->errorno; 3165void
2573 PL_laststype = data->laststype; 3166send (SV *self)
2574 PL_laststatval = data->laststatval; 3167 CODE:
2575 PL_statcache = data->statcache; 3168{
3169 AV *av = (AV *)SvRV (self);
2576 3170
2577 EXTEND (SP, AvFILLp (av)); 3171 if (AvFILLp (av))
2578 for (i = 0; i < AvFILLp (av); ++i) 3172 coro_signal_wake (aTHX_ av, 1);
2579 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); 3173 else
3174 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
2580} 3175}
3176
3177IV
3178awaited (SV *self)
3179 CODE:
3180 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3181 OUTPUT:
3182 RETVAL
2581 3183
2582 3184
2583MODULE = Coro::State PACKAGE = Coro::AnyEvent 3185MODULE = Coro::State PACKAGE = Coro::AnyEvent
2584 3186
2585BOOT: 3187BOOT:
2586 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); 3188 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2587 3189
2588SV * 3190void
2589_schedule (...) 3191_schedule (...)
2590 PROTOTYPE: @
2591 CODE: 3192 CODE:
2592{ 3193{
2593 static int incede; 3194 static int incede;
2594 3195
2595 api_cede_notself (aTHX); 3196 api_cede_notself (aTHX);
… …
2601 sv_setsv (sv_activity, &PL_sv_undef); 3202 sv_setsv (sv_activity, &PL_sv_undef);
2602 if (coro_nready >= incede) 3203 if (coro_nready >= incede)
2603 { 3204 {
2604 PUSHMARK (SP); 3205 PUSHMARK (SP);
2605 PUTBACK; 3206 PUTBACK;
2606 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); 3207 call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2607 SPAGAIN;
2608 } 3208 }
2609 3209
2610 --incede; 3210 --incede;
2611} 3211}
2612 3212
2613 3213
2614MODULE = Coro::State PACKAGE = PerlIO::cede 3214MODULE = Coro::State PACKAGE = Coro::AIO
2615 3215
2616BOOT: 3216void
2617 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3217_register (char *target, char *proto, SV *req)
3218 CODE:
3219{
3220 CV *req_cv = coro_sv_2cv (req);
3221 /* newXSproto doesn't return the CV on 5.8 */
3222 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3223 sv_setpv ((SV *)slf_cv, proto);
3224 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3225}
2618 3226

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