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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.294 by root, Tue Nov 18 08:31:03 2008 UTC vs.
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC

		1	#define CORO_CLONE 1 //D
		2
1	#include "libcoro/coro.c"	3	#include "libcoro/coro.c"
2		4
3	#define PERL_NO_GET_CONTEXT	5	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	6	#define PERL_EXT
5		7
…		…
16		18
17	#ifdef WIN32	19	#ifdef WIN32
18	# undef setjmp	20	# undef setjmp
19	# undef longjmp	21	# undef longjmp
20	# undef _exit	22	# undef _exit
21	# define setjmp _setjmp // deep magic, don't ask	23	# define setjmp _setjmp /* deep magic */
22	#else	24	#else
23	# include <inttypes.h> /* most portable stdint.h */	25	# include <inttypes.h> /* most portable stdint.h */
24	#endif	26	#endif
25		27
26	#ifdef HAVE_MMAP	28	#ifdef HAVE_MMAP
…		…
55		57
56	#define PERL_VERSION_ATLEAST(a,b,c) \	58	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	59	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	60	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	61	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	62	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		63
62	#if !PERL_VERSION_ATLEAST (5,6,0)	64	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	65	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	66	# define PL_ppaddr ppaddr
65	# endif	67	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	100	# define newSV(l) NEWSV(0,l)
99	#endif	101	#endif
100	#ifndef CvISXSUB_on	102	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	103	# define CvISXSUB_on(cv) (void)cv
102	#endif	104	#endif
		105	#ifndef CvISXSUB
		106	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		107	#endif
		108	#ifndef Newx
		109	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		110	#endif
103		111
104	/* 5.8.7 */	112	/* 5.8.7 */
105	#ifndef SvRV_set	113	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	114	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	115	#endif
…		…
145	#define expect_true(expr) expect ((expr) != 0, 1)	153	#define expect_true(expr) expect ((expr) != 0, 1)
146		154
147	#define NOINLINE attribute ((noinline))	155	#define NOINLINE attribute ((noinline))
148		156
149	#include "CoroAPI.h"	157	#include "CoroAPI.h"
		158	#define GCoroAPI (&coroapi) /* very sneaky */
150		159
151	#ifdef USE_ITHREADS	160	#ifdef USE_ITHREADS
152	# if CORO_PTHREAD	161	# if CORO_PTHREAD
153	static void *coro_thx;	162	static void *coro_thx;
154	# endif	163	# endif
…		…
166	static AV *main_mainstack; /* used to differentiate between $main and others */	175	static AV *main_mainstack; /* used to differentiate between $main and others */
167	static JMPENV *main_top_env;	176	static JMPENV *main_top_env;
168	static HV *coro_state_stash, *coro_stash;	177	static HV *coro_state_stash, *coro_stash;
169	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	178	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
170		179
		180	static AV *av_destroy; /* destruction queue */
		181	static SV *sv_manager; /* the manager coro */
		182
171	static GV *irsgv; /* $/ */	183	static GV *irsgv; /* $/ */
172	static GV *stdoutgv; /* *STDOUT */	184	static GV *stdoutgv; /* *STDOUT */
173	static SV *rv_diehook;	185	static SV *rv_diehook;
174	static SV *rv_warnhook;	186	static SV *rv_warnhook;
175	static HV *hv_sig; /* %SIG */	187	static HV *hv_sig; /* %SIG */
176		188
177	/* async_pool helper stuff */	189	/* async_pool helper stuff */
178	static SV *sv_pool_rss;	190	static SV *sv_pool_rss;
179	static SV *sv_pool_size;	191	static SV *sv_pool_size;
		192	static SV *sv_async_pool_idle; /* description string */
180	static AV *av_async_pool;	193	static AV *av_async_pool; /* idle pool */
		194	static SV *sv_Coro; /* class string */
		195	static CV *cv_pool_handler;
		196	static CV *cv_coro_state_new;
181		197
182	/* Coro::AnyEvent */	198	/* Coro::AnyEvent */
183	static SV *sv_activity;	199	static SV *sv_activity;
184		200
185	static struct coro_cctx *cctx_first;	201	static struct coro_cctx *cctx_first;
…		…
245	/* state data */	261	/* state data */
246	struct CoroSLF slf_frame; /* saved slf frame */	262	struct CoroSLF slf_frame; /* saved slf frame */
247	AV *mainstack;	263	AV *mainstack;
248	perl_slots *slot; /* basically the saved sp */	264	perl_slots *slot; /* basically the saved sp */
249		265
		266	CV *startcv; /* the CV to execute */
250	AV *args; /* data associated with this coroutine (initial args) */	267	AV *args; /* data associated with this coroutine (initial args) */
251	int refcnt; /* coroutines are refcounted, yes */	268	int refcnt; /* coroutines are refcounted, yes */
252	int flags; /* CF_ flags */	269	int flags; /* CF_ flags */
253	HV *hv; /* the perl hash associated with this coro, if any */	270	HV *hv; /* the perl hash associated with this coro, if any */
254	void (*on_destroy)(pTHX_ struct coro *coro);	271	void (*on_destroy)(pTHX_ struct coro *coro);
255		272
256	/* statistics */	273	/* statistics */
257	int usecount; /* number of transfers to this coro */	274	int usecount; /* number of transfers to this coro */
258		275
259	/* coro process data */	276	/* coro process data */
260	int prio;	277	int prio;
261	SV *throw; /* exception to be thrown */	278	SV *except; /* exception to be thrown */
		279	SV *rouse_cb;
262		280
263	/* async_pool */	281	/* async_pool */
264	SV *saved_deffh;	282	SV *saved_deffh;
		283	SV *invoke_cb;
		284	AV *invoke_av;
265		285
266	/* linked list */	286	/* linked list */
267	struct coro *next, *prev;	287	struct coro *next, *prev;
268	};	288	};
269		289
…		…
272		292
273	/* the following variables are effectively part of the perl context */	293	/* the following variables are effectively part of the perl context */
274	/* and get copied between struct coro and these variables */	294	/* and get copied between struct coro and these variables */
275	/* the mainr easonw e don't support windows process emulation */	295	/* the mainr easonw e don't support windows process emulation */
276	static struct CoroSLF slf_frame; /* the current slf frame */	296	static struct CoroSLF slf_frame; /* the current slf frame */
277	static SV *coro_throw;
278		297
279	/** Coro ********************************************************************/	298	/** Coro ********************************************************************/
280		299
281	#define PRIO_MAX 3	300	#define PRIO_MAX 3
282	#define PRIO_HIGH 1	301	#define PRIO_HIGH 1
…		…
287		306
288	/* for Coro.pm */	307	/* for Coro.pm */
289	static SV *coro_current;	308	static SV *coro_current;
290	static SV *coro_readyhook;	309	static SV *coro_readyhook;
291	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	310	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		311	static CV *cv_coro_run, *cv_coro_terminate;
292	static struct coro *coro_first;	312	static struct coro *coro_first;
293	#define coro_nready coroapi.nready	313	#define coro_nready coroapi.nready
294		314
295	/** lowlevel stuff **********************************************************/	315	/** lowlevel stuff **********************************************************/
296		316
…		…
322	get_hv (name, create);	342	get_hv (name, create);
323	#endif	343	#endif
324	return get_hv (name, create);	344	return get_hv (name, create);
325	}	345	}
326		346
		347	/* may croak */
		348	INLINE CV *
		349	coro_sv_2cv (pTHX_ SV *sv)
		350	{
		351	HV *st;
		352	GV *gvp;
		353	return sv_2cv (sv, &st, &gvp, 0);
		354	}
		355
327	static AV *	356	static AV *
328	coro_clone_padlist (pTHX_ CV *cv)	357	coro_derive_padlist (pTHX_ CV *cv)
329	{	358	{
330	AV *padlist = CvPADLIST (cv);	359	AV *padlist = CvPADLIST (cv);
331	AV *newpadlist, *newpad;	360	AV *newpadlist, *newpad;
332		361
333	newpadlist = newAV ();	362	newpadlist = newAV ();
…		…
448	else	477	else
449	{	478	{
450	#if CORO_PREFER_PERL_FUNCTIONS	479	#if CORO_PREFER_PERL_FUNCTIONS
451	/* this is probably cleaner? but also slower! */	480	/* this is probably cleaner? but also slower! */
452	/* in practise, it seems to be less stable */	481	/* in practise, it seems to be less stable */
453	CV *cp = Perl_cv_clone (cv);	482	CV *cp = Perl_cv_clone (aTHX_ cv);
454	CvPADLIST (cv) = CvPADLIST (cp);	483	CvPADLIST (cv) = CvPADLIST (cp);
455	CvPADLIST (cp) = 0;	484	CvPADLIST (cp) = 0;
456	SvREFCNT_dec (cp);	485	SvREFCNT_dec (cp);
457	#else	486	#else
458	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	487	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
459	#endif	488	#endif
460	}	489	}
461	}	490	}
462		491
463	static void	492	static void
…		…
511		540
512	PUTBACK;	541	PUTBACK;
513	}	542	}
514		543
515	slf_frame = c->slf_frame;	544	slf_frame = c->slf_frame;
516	coro_throw = c->throw;	545	CORO_THROW = c->except;
517	}	546	}
518		547
519	static void	548	static void
520	save_perl (pTHX_ Coro__State c)	549	save_perl (pTHX_ Coro__State c)
521	{	550	{
522	c->throw = coro_throw;	551	c->except = CORO_THROW;
523	c->slf_frame = slf_frame;	552	c->slf_frame = slf_frame;
524		553
525	{	554	{
526	dSP;	555	dSP;
527	I32 cxix = cxstack_ix;	556	I32 cxix = cxstack_ix;
…		…
602	* of perl.c:init_stacks, except that it uses less memory	631	* of perl.c:init_stacks, except that it uses less memory
603	* on the (sometimes correct) assumption that coroutines do	632	* on the (sometimes correct) assumption that coroutines do
604	* not usually need a lot of stackspace.	633	* not usually need a lot of stackspace.
605	*/	634	*/
606	#if CORO_PREFER_PERL_FUNCTIONS	635	#if CORO_PREFER_PERL_FUNCTIONS
607	# define coro_init_stacks init_stacks	636	# define coro_init_stacks(thx) init_stacks ()
608	#else	637	#else
609	static void	638	static void
610	coro_init_stacks (pTHX)	639	coro_init_stacks (pTHX)
611	{	640	{
612	PL_curstackinfo = new_stackinfo(32, 8);	641	PL_curstackinfo = new_stackinfo(32, 8);
…		…
675	#if !PERL_VERSION_ATLEAST (5,10,0)	704	#if !PERL_VERSION_ATLEAST (5,10,0)
676	Safefree (PL_retstack);	705	Safefree (PL_retstack);
677	#endif	706	#endif
678	}	707	}
679		708
		709	#define CORO_RSS \
		710	rss += sizeof (SYM (curstackinfo)); \
		711	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		712	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		713	rss += SYM (tmps_max) * sizeof (SV *); \
		714	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		715	rss += SYM (scopestack_max) * sizeof (I32); \
		716	rss += SYM (savestack_max) * sizeof (ANY);
		717
680	static size_t	718	static size_t
681	coro_rss (pTHX_ struct coro *coro)	719	coro_rss (pTHX_ struct coro *coro)
682	{	720	{
683	size_t rss = sizeof (*coro);	721	size_t rss = sizeof (*coro);
684		722
685	if (coro->mainstack)	723	if (coro->mainstack)
686	{	724	{
687	perl_slots tmp_slot;
688	perl_slots *slot;
689
690	if (coro->flags & CF_RUNNING)	725	if (coro->flags & CF_RUNNING)
691	{	726	{
692	slot = &tmp_slot;	727	#define SYM(sym) PL_ ## sym
693		728	CORO_RSS;
694	#define VAR(name,type) slot->name = PL_ ## name;
695	# include "state.h"
696	#undef VAR	729	#undef SYM
697	}	730	}
698	else	731	else
699	slot = coro->slot;
700
701	if (slot)
702	{	732	{
703	rss += sizeof (slot->curstackinfo);	733	#define SYM(sym) coro->slot->sym
704	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	734	CORO_RSS;
705	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	735	#undef SYM
706	rss += slot->tmps_max * sizeof (SV *);
707	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
708	rss += slot->scopestack_max * sizeof (I32);
709	rss += slot->savestack_max * sizeof (ANY);
710
711	#if !PERL_VERSION_ATLEAST (5,10,0)
712	rss += slot->retstack_max * sizeof (OP *);
713	#endif
714	}	736	}
715	}	737	}
716		738
717	return rss;	739	return rss;
718	}	740	}
…		…
820	slf_check_nop (pTHX_ struct CoroSLF *frame)	842	slf_check_nop (pTHX_ struct CoroSLF *frame)
821	{	843	{
822	return 0;	844	return 0;
823	}	845	}
824		846
		847	static int
		848	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		849	{
		850	return 1;
		851	}
		852
825	static UNOP coro_setup_op;	853	static UNOP coro_setup_op;
826		854
827	static void NOINLINE /* noinline to keep it out of the transfer fast path */	855	static void NOINLINE /* noinline to keep it out of the transfer fast path */
828	coro_setup (pTHX_ struct coro *coro)	856	coro_setup (pTHX_ struct coro *coro)
829	{	857	{
…		…
860	dSP;	888	dSP;
861	UNOP myop;	889	UNOP myop;
862		890
863	Zero (&myop, 1, UNOP);	891	Zero (&myop, 1, UNOP);
864	myop.op_next = Nullop;	892	myop.op_next = Nullop;
		893	myop.op_type = OP_ENTERSUB;
865	myop.op_flags = OPf_WANT_VOID;	894	myop.op_flags = OPf_WANT_VOID;
866		895
867	PUSHMARK (SP);	896	PUSHMARK (SP);
868	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	897	PUSHs ((SV *)coro->startcv);
869	PUTBACK;	898	PUTBACK;
870	PL_op = (OP *)&myop;	899	PL_op = (OP *)&myop;
871	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	900	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
872	SPAGAIN;
873	}	901	}
874		902
875	/* this newly created coroutine might be run on an existing cctx which most	903	/* this newly created coroutine might be run on an existing cctx which most
876	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	904	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
877	*/	905	*/
878	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	906	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
879	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	907	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
880		908
881	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	909	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
882	coro_setup_op.op_next = PL_op;	910	coro_setup_op.op_next = PL_op;
883	coro_setup_op.op_type = OP_CUSTOM;	911	coro_setup_op.op_type = OP_ENTERSUB;
884	coro_setup_op.op_ppaddr = pp_slf;	912	coro_setup_op.op_ppaddr = pp_slf;
885	/* no flags required, as an init function won't be called */	913	/* no flags etc. required, as an init function won't be called */
886		914
887	PL_op = (OP *)&coro_setup_op;	915	PL_op = (OP *)&coro_setup_op;
888		916
889	/* copy throw, in case it was set before coro_setup */	917	/* copy throw, in case it was set before coro_setup */
890	coro_throw = coro->throw;	918	CORO_THROW = coro->except;
891	}	919	}
892		920
893	static void	921	static void
894	coro_destruct (pTHX_ struct coro *coro)	922	coro_destruct (pTHX_ struct coro *coro)
895	{	923	{
…		…
919		947
920	SvREFCNT_dec (PL_diehook);	948	SvREFCNT_dec (PL_diehook);
921	SvREFCNT_dec (PL_warnhook);	949	SvREFCNT_dec (PL_warnhook);
922		950
923	SvREFCNT_dec (coro->saved_deffh);	951	SvREFCNT_dec (coro->saved_deffh);
924	SvREFCNT_dec (coro_throw);	952	SvREFCNT_dec (coro->rouse_cb);
		953	SvREFCNT_dec (coro->invoke_cb);
		954	SvREFCNT_dec (coro->invoke_av);
925		955
926	coro_destruct_stacks (aTHX);	956	coro_destruct_stacks (aTHX);
927	}	957	}
928		958
929	INLINE void	959	INLINE void
…		…
1001	{	1031	{
1002	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1032	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1003		1033
1004	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1034	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1005	{	1035	{
1006	runops_proc_t old_runops = PL_runops;
1007	dSP;	1036	dSP;
1008	GV *gv = CvGV (cx->blk_sub.cv);	1037	GV *gv = CvGV (cx->blk_sub.cv);
1009	SV *fullname = sv_2mortal (newSV (0));	1038	SV *fullname = sv_2mortal (newSV (0));
1010		1039
1011	if (isGV (gv))	1040	if (isGV (gv))
…		…
1016	SAVETMPS;	1045	SAVETMPS;
1017	EXTEND (SP, 3);	1046	EXTEND (SP, 3);
1018	PUSHMARK (SP);	1047	PUSHMARK (SP);
1019	PUSHs (&PL_sv_yes);	1048	PUSHs (&PL_sv_yes);
1020	PUSHs (fullname);	1049	PUSHs (fullname);
1021	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1050	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1022	PUTBACK;	1051	PUTBACK;
1023	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1052	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1024	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1053	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1025	SPAGAIN;	1054	SPAGAIN;
1026	FREETMPS;	1055	FREETMPS;
…		…
1132	transfer_tail (aTHX);	1161	transfer_tail (aTHX);
1133		1162
1134	/* somebody or something will hit me for both perl_run and PL_restartop */	1163	/* somebody or something will hit me for both perl_run and PL_restartop */
1135	PL_restartop = PL_op;	1164	PL_restartop = PL_op;
1136	perl_run (PL_curinterp);	1165	perl_run (PL_curinterp);
		1166	/*
		1167	* Unfortunately, there is no way to get at the return values of the
		1168	* coro body here, as perl_run destroys these
		1169	*/
1137		1170
1138	/*	1171	/*
1139	* If perl-run returns we assume exit() was being called or the coro	1172	* If perl-run returns we assume exit() was being called or the coro
1140	* fell off the end, which seems to be the only valid (non-bug)	1173	* fell off the end, which seems to be the only valid (non-bug)
1141	* reason for perl_run to return. We try to exit by jumping to the	1174	* reason for perl_run to return. We try to exit by jumping to the
…		…
1433		1466
1434	coro->slot = 0;	1467	coro->slot = 0;
1435	}	1468	}
1436		1469
1437	cctx_destroy (coro->cctx);	1470	cctx_destroy (coro->cctx);
		1471	SvREFCNT_dec (coro->startcv);
1438	SvREFCNT_dec (coro->args);	1472	SvREFCNT_dec (coro->args);
		1473	SvREFCNT_dec (CORO_THROW);
1439		1474
1440	if (coro->next) coro->next->prev = coro->prev;	1475	if (coro->next) coro->next->prev = coro->prev;
1441	if (coro->prev) coro->prev->next = coro->next;	1476	if (coro->prev) coro->prev->next = coro->next;
1442	if (coro == coro_first) coro_first = coro->next;	1477	if (coro == coro_first) coro_first = coro->next;
1443		1478
…		…
1497		1532
1498	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1533	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499	TRANSFER (ta, 1);	1534	TRANSFER (ta, 1);
1500	}	1535	}
1501		1536
		1537	/*****************************************************************************/
		1538	/* gensub: simple closure generation utility */
		1539
		1540	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1541
		1542	/* create a closure from XS, returns a code reference */
		1543	/* the arg can be accessed via GENSUB_ARG from the callback */
		1544	/* the callback must use dXSARGS/XSRETURN */
		1545	static SV *
		1546	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
		1547	{
		1548	CV *cv = (CV *)newSV (0);
		1549
		1550	sv_upgrade ((SV *)cv, SVt_PVCV);
		1551
		1552	CvANON_on (cv);
		1553	CvISXSUB_on (cv);
		1554	CvXSUB (cv) = xsub;
		1555	GENSUB_ARG = arg;
		1556
		1557	return newRV_noinc ((SV *)cv);
		1558	}
		1559
1502	/** Coro ********************************************************************/	1560	/** Coro ********************************************************************/
1503		1561
1504	INLINE void	1562	INLINE void
1505	coro_enq (pTHX_ struct coro *coro)	1563	coro_enq (pTHX_ struct coro *coro)
1506	{	1564	{
…		…
1567	api_is_ready (pTHX_ SV *coro_sv)	1625	api_is_ready (pTHX_ SV *coro_sv)
1568	{	1626	{
1569	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1627	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1570	}	1628	}
1571		1629
		1630	/* expects to own a reference to next->hv */
1572	INLINE void	1631	INLINE void
		1632	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
		1633	{
		1634	SV *prev_sv = SvRV (coro_current);
		1635
		1636	ta->prev = SvSTATE_hv (prev_sv);
		1637	ta->next = next;
		1638
		1639	TRANSFER_CHECK (*ta);
		1640
		1641	SvRV_set (coro_current, (SV *)next->hv);
		1642
		1643	free_coro_mortal (aTHX);
		1644	coro_mortal = prev_sv;
		1645	}
		1646
		1647	static void
1573	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1648	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1574	{	1649	{
1575	SV *prev_sv, *next_sv;
1576
1577	for (;;)	1650	for (;;)
1578	{	1651	{
1579	next_sv = coro_deq (aTHX);	1652	SV *next_sv = coro_deq (aTHX);
1580		1653
1581	/* nothing to schedule: call the idle handler */
1582	if (expect_false (!next_sv))	1654	if (expect_true (next_sv))
1583	{	1655	{
		1656	struct coro *next = SvSTATE_hv (next_sv);
		1657
		1658	/* cannot transfer to destroyed coros, skip and look for next */
		1659	if (expect_false (next->flags & CF_DESTROYED))
		1660	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1661	else
		1662	{
		1663	next->flags &= ~CF_READY;
		1664	--coro_nready;
		1665
		1666	prepare_schedule_to (aTHX_ ta, next);
		1667	break;
		1668	}
		1669	}
		1670	else
		1671	{
		1672	/* nothing to schedule: call the idle handler */
1584	dSP;	1673	dSP;
1585		1674
1586	ENTER;	1675	ENTER;
1587	SAVETMPS;	1676	SAVETMPS;
1588		1677
…		…
1590	PUTBACK;	1679	PUTBACK;
1591	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1680	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1592		1681
1593	FREETMPS;	1682	FREETMPS;
1594	LEAVE;	1683	LEAVE;
1595	continue;
1596	}	1684	}
1597
1598	ta->next = SvSTATE_hv (next_sv);
1599
1600	/* cannot transfer to destroyed coros, skip and look for next */
1601	if (expect_false (ta->next->flags & CF_DESTROYED))
1602	{
1603	SvREFCNT_dec (next_sv);
1604	/* coro_nready has already been taken care of by destroy */
1605	continue;
1606	}
1607
1608	--coro_nready;
1609	break;
1610	}	1685	}
1611
1612	/* free this only after the transfer */
1613	prev_sv = SvRV (coro_current);
1614	ta->prev = SvSTATE_hv (prev_sv);
1615	TRANSFER_CHECK (*ta);
1616	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1617	ta->next->flags &= ~CF_READY;
1618	SvRV_set (coro_current, next_sv);
1619
1620	free_coro_mortal (aTHX);
1621	coro_mortal = prev_sv;
1622	}	1686	}
1623		1687
1624	INLINE void	1688	INLINE void
1625	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1689	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1626	{	1690	{
…		…
1647	{	1711	{
1648	struct coro_transfer_args ta;	1712	struct coro_transfer_args ta;
1649		1713
1650	prepare_schedule (aTHX_ &ta);	1714	prepare_schedule (aTHX_ &ta);
1651	TRANSFER (ta, 1);	1715	TRANSFER (ta, 1);
		1716	}
		1717
		1718	static void
		1719	api_schedule_to (pTHX_ SV *coro_sv)
		1720	{
		1721	struct coro_transfer_args ta;
		1722	struct coro *next = SvSTATE (coro_sv);
		1723
		1724	SvREFCNT_inc_NN (coro_sv);
		1725	prepare_schedule_to (aTHX_ &ta, next);
1652	}	1726	}
1653		1727
1654	static int	1728	static int
1655	api_cede (pTHX)	1729	api_cede (pTHX)
1656	{	1730	{
…		…
1703	if (coro->flags & CF_RUNNING)	1777	if (coro->flags & CF_RUNNING)
1704	PL_runops = RUNOPS_DEFAULT;	1778	PL_runops = RUNOPS_DEFAULT;
1705	else	1779	else
1706	coro->slot->runops = RUNOPS_DEFAULT;	1780	coro->slot->runops = RUNOPS_DEFAULT;
1707	}	1781	}
		1782	}
		1783
		1784	static void
		1785	coro_call_on_destroy (pTHX_ struct coro *coro)
		1786	{
		1787	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1788	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1789
		1790	if (on_destroyp)
		1791	{
		1792	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1793
		1794	while (AvFILLp (on_destroy) >= 0)
		1795	{
		1796	dSP; /* don't disturb outer sp */
		1797	SV *cb = av_pop (on_destroy);
		1798
		1799	PUSHMARK (SP);
		1800
		1801	if (statusp)
		1802	{
		1803	int i;
		1804	AV *status = (AV *)SvRV (*statusp);
		1805	EXTEND (SP, AvFILLp (status) + 1);
		1806
		1807	for (i = 0; i <= AvFILLp (status); ++i)
		1808	PUSHs (AvARRAY (status)[i]);
		1809	}
		1810
		1811	PUTBACK;
		1812	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1813	}
		1814	}
		1815	}
		1816
		1817	static void
		1818	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1819	{
		1820	int i;
		1821	HV *hv = (HV *)SvRV (coro_current);
		1822	AV *av = newAV ();
		1823
		1824	av_extend (av, items - 1);
		1825	for (i = 0; i < items; ++i)
		1826	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1827
		1828	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1829
		1830	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1831	api_ready (aTHX_ sv_manager);
		1832
		1833	frame->prepare = prepare_schedule;
		1834	frame->check = slf_check_repeat;
		1835	}
		1836
		1837	/*****************************************************************************/
		1838	/* async pool handler */
		1839
		1840	static int
		1841	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1842	{
		1843	HV *hv = (HV *)SvRV (coro_current);
		1844	struct coro *coro = (struct coro *)frame->data;
		1845
		1846	if (!coro->invoke_cb)
		1847	return 1; /* loop till we have invoke */
		1848	else
		1849	{
		1850	hv_store (hv, "desc", sizeof ("desc") - 1,
		1851	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1852
		1853	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1854
		1855	{
		1856	dSP;
		1857	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1858	PUTBACK;
		1859	}
		1860
		1861	SvREFCNT_dec (GvAV (PL_defgv));
		1862	GvAV (PL_defgv) = coro->invoke_av;
		1863	coro->invoke_av = 0;
		1864
		1865	return 0;
		1866	}
		1867	}
		1868
		1869	static void
		1870	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1871	{
		1872	HV *hv = (HV *)SvRV (coro_current);
		1873	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1874
		1875	if (expect_true (coro->saved_deffh))
		1876	{
		1877	/* subsequent iteration */
		1878	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1879	coro->saved_deffh = 0;
		1880
		1881	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1882	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1883	{
		1884	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1885	coro->invoke_av = newAV ();
		1886
		1887	frame->prepare = prepare_nop;
		1888	}
		1889	else
		1890	{
		1891	av_clear (GvAV (PL_defgv));
		1892	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1893
		1894	coro->prio = 0;
		1895
		1896	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1897	api_trace (aTHX_ coro_current, 0);
		1898
		1899	frame->prepare = prepare_schedule;
		1900	av_push (av_async_pool, SvREFCNT_inc (hv));
		1901	}
		1902	}
		1903	else
		1904	{
		1905	/* first iteration, simply fall through */
		1906	frame->prepare = prepare_nop;
		1907	}
		1908
		1909	frame->check = slf_check_pool_handler;
		1910	frame->data = (void *)coro;
		1911	}
		1912
		1913	/*****************************************************************************/
		1914	/* rouse callback */
		1915
		1916	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1917
		1918	static void
		1919	coro_rouse_callback (pTHX_ CV *cv)
		1920	{
		1921	dXSARGS;
		1922	SV *data = (SV *)GENSUB_ARG;
		1923
		1924	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1925	{
		1926	/* first call, set args */
		1927	AV *av = newAV ();
		1928	SV *coro = SvRV (data);
		1929
		1930	SvRV_set (data, (SV *)av);
		1931	api_ready (aTHX_ coro);
		1932	SvREFCNT_dec (coro);
		1933
		1934	/* better take a full copy of the arguments */
		1935	while (items--)
		1936	av_store (av, items, newSVsv (ST (items)));
		1937	}
		1938
		1939	XSRETURN_EMPTY;
		1940	}
		1941
		1942	static int
		1943	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1944	{
		1945	SV *data = (SV *)frame->data;
		1946
		1947	if (CORO_THROW)
		1948	return 0;
		1949
		1950	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1951	return 1;
		1952
		1953	/* now push all results on the stack */
		1954	{
		1955	dSP;
		1956	AV *av = (AV *)SvRV (data);
		1957	int i;
		1958
		1959	EXTEND (SP, AvFILLp (av) + 1);
		1960	for (i = 0; i <= AvFILLp (av); ++i)
		1961	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1962
		1963	/* we have stolen the elements, so ste length to zero and free */
		1964	AvFILLp (av) = -1;
		1965	av_undef (av);
		1966
		1967	PUTBACK;
		1968	}
		1969
		1970	return 0;
		1971	}
		1972
		1973	static void
		1974	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1975	{
		1976	SV *cb;
		1977
		1978	if (items)
		1979	cb = arg [0];
		1980	else
		1981	{
		1982	struct coro *coro = SvSTATE_current;
		1983
		1984	if (!coro->rouse_cb)
		1985	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1986
		1987	cb = sv_2mortal (coro->rouse_cb);
		1988	coro->rouse_cb = 0;
		1989	}
		1990
		1991	if (!SvROK (cb)
		1992	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		1993	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1994	croak ("Coro::rouse_wait called with illegal callback argument,");
		1995
		1996	{
		1997	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		1998	SV *data = (SV *)GENSUB_ARG;
		1999
		2000	frame->data = (void *)data;
		2001	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2002	frame->check = slf_check_rouse_wait;
		2003	}
		2004	}
		2005
		2006	static SV *
		2007	coro_new_rouse_cb (pTHX)
		2008	{
		2009	HV *hv = (HV *)SvRV (coro_current);
		2010	struct coro *coro = SvSTATE_hv (hv);
		2011	SV *data = newRV_inc ((SV *)hv);
		2012	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		2013
		2014	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2015	SvREFCNT_dec (data); /* magicext increases the refcount */
		2016
		2017	SvREFCNT_dec (coro->rouse_cb);
		2018	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2019
		2020	return cb;
1708	}	2021	}
1709		2022
1710	/*****************************************************************************/	2023	/*****************************************************************************/
1711	/* schedule-like-function opcode (SLF) */	2024	/* schedule-like-function opcode (SLF) */
1712		2025
…		…
1759	static void	2072	static void
1760	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2073	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1761	{	2074	{
1762	frame->prepare = prepare_schedule;	2075	frame->prepare = prepare_schedule;
1763	frame->check = slf_check_nop;	2076	frame->check = slf_check_nop;
		2077	}
		2078
		2079	static void
		2080	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2081	{
		2082	struct coro *next = (struct coro *)slf_frame.data;
		2083
		2084	SvREFCNT_inc_NN (next->hv);
		2085	prepare_schedule_to (aTHX_ ta, next);
		2086	}
		2087
		2088	static void
		2089	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2090	{
		2091	if (!items)
		2092	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2093
		2094	frame->data = (void *)SvSTATE (arg [0]);
		2095	frame->prepare = slf_prepare_schedule_to;
		2096	frame->check = slf_check_nop;
		2097	}
		2098
		2099	static void
		2100	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2101	{
		2102	api_ready (aTHX_ SvRV (coro_current));
		2103
		2104	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1764	}	2105	}
1765		2106
1766	static void	2107	static void
1767	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2108	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1768	{	2109	{
…		…
1839	}	2180	}
1840	while (slf_frame.check (aTHX_ &slf_frame));	2181	while (slf_frame.check (aTHX_ &slf_frame));
1841		2182
1842	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2183	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843		2184
		2185	/* exception handling */
		2186	if (expect_false (CORO_THROW))
		2187	{
		2188	SV *exception = sv_2mortal (CORO_THROW);
		2189
		2190	CORO_THROW = 0;
		2191	sv_setsv (ERRSV, exception);
		2192	croak (0);
		2193	}
		2194
1844	/* return value handling - mostly like entersub */	2195	/* return value handling - mostly like entersub */
1845	/* make sure we put something on the stack in scalar context */	2196	/* make sure we put something on the stack in scalar context */
1846	if (GIMME_V == G_SCALAR)	2197	if (GIMME_V == G_SCALAR)
1847	{	2198	{
1848	dSP;	2199	dSP;
…		…
1854	bot [1] = *sp;	2205	bot [1] = *sp;
1855		2206
1856	SP = bot + 1;	2207	SP = bot + 1;
1857		2208
1858	PUTBACK;	2209	PUTBACK;
1859	}
1860
1861	/* exception handling */
1862	if (expect_false (coro_throw))
1863	{
1864	SV *exception = sv_2mortal (coro_throw);
1865
1866	coro_throw = 0;
1867	sv_setsv (ERRSV, exception);
1868	croak (0);
1869	}	2210	}
1870		2211
1871	return NORMAL;	2212	return NORMAL;
1872	}	2213	}
1873		2214
…		…
1914	}	2255	}
1915	else	2256	else
1916	slf_argc = 0;	2257	slf_argc = 0;
1917		2258
1918	PL_op->op_ppaddr = pp_slf;	2259	PL_op->op_ppaddr = pp_slf;
1919	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2260	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1920		2261
1921	PL_op = (OP *)&slf_restore;	2262	PL_op = (OP *)&slf_restore;
1922	}	2263	}
1923		2264
1924	/*****************************************************************************/	2265	/*****************************************************************************/
…		…
1995	PerlIOBuf_get_cnt,	2336	PerlIOBuf_get_cnt,
1996	PerlIOBuf_set_ptrcnt,	2337	PerlIOBuf_set_ptrcnt,
1997	};	2338	};
1998		2339
1999	/*****************************************************************************/	2340	/*****************************************************************************/
		2341	/* Coro::Semaphore & Coro::Signal */
		2342
		2343	static SV *
		2344	coro_waitarray_new (pTHX_ int count)
		2345	{
		2346	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2347	AV *av = newAV ();
		2348	SV **ary;
		2349
		2350	/* unfortunately, building manually saves memory */
		2351	Newx (ary, 2, SV *);
		2352	AvALLOC (av) = ary;
		2353	/*AvARRAY (av) = ary;*/
		2354	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2355	AvMAX (av) = 1;
		2356	AvFILLp (av) = 0;
		2357	ary [0] = newSViv (count);
		2358
		2359	return newRV_noinc ((SV *)av);
		2360	}
		2361
2000	/* Coro::Semaphore */	2362	/* semaphore */
2001		2363
2002	static void	2364	static void
2003	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2365	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2004	{	2366	{
2005	SV *count_sv = AvARRAY (av)[0];	2367	SV *count_sv = AvARRAY (av)[0];
…		…
2017	AvARRAY (av)[0] = AvARRAY (av)[1];	2379	AvARRAY (av)[0] = AvARRAY (av)[1];
2018	AvARRAY (av)[1] = count_sv;	2380	AvARRAY (av)[1] = count_sv;
2019	cb = av_shift (av);	2381	cb = av_shift (av);
2020		2382
2021	if (SvOBJECT (cb))	2383	if (SvOBJECT (cb))
		2384	{
2022	api_ready (aTHX_ cb);	2385	api_ready (aTHX_ cb);
2023	else	2386	--count;
2024	croak ("callbacks not yet supported");	2387	}
		2388	else if (SvTYPE (cb) == SVt_PVCV)
		2389	{
		2390	dSP;
		2391	PUSHMARK (SP);
		2392	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2393	PUTBACK;
		2394	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2395	}
2025		2396
2026	SvREFCNT_dec (cb);	2397	SvREFCNT_dec (cb);
2027
2028	--count;
2029	}	2398	}
2030	}	2399	}
2031		2400
2032	static void	2401	static void
2033	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2402	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2035	/* call $sem->adjust (0) to possibly wake up some other waiters */	2404	/* call $sem->adjust (0) to possibly wake up some other waiters */
2036	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2405	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2037	}	2406	}
2038		2407
2039	static int	2408	static int
2040	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2409	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2041	{	2410	{
2042	AV *av = (AV *)frame->data;	2411	AV *av = (AV *)frame->data;
2043	SV *count_sv = AvARRAY (av)[0];	2412	SV *count_sv = AvARRAY (av)[0];
2044		2413
		2414	/* if we are about to throw, don't actually acquire the lock, just throw */
		2415	if (CORO_THROW)
		2416	return 0;
2045	if (SvIVX (count_sv) > 0)	2417	else if (SvIVX (count_sv) > 0)
2046	{	2418	{
2047	SvSTATE_current->on_destroy = 0;	2419	SvSTATE_current->on_destroy = 0;
		2420
		2421	if (acquire)
2048	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2422	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2423	else
		2424	coro_semaphore_adjust (aTHX_ av, 0);
		2425
2049	return 0;	2426	return 0;
2050	}	2427	}
2051	else	2428	else
2052	{	2429	{
2053	int i;	2430	int i;
…		…
2062	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2439	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2063	return 1;	2440	return 1;
2064	}	2441	}
2065	}	2442	}
2066		2443
2067	static void	2444	static int
		2445	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2446	{
		2447	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2448	}
		2449
		2450	static int
		2451	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2452	{
		2453	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2454	}
		2455
		2456	static void
2068	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2457	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2069	{	2458	{
2070	AV *av = (AV *)SvRV (arg [0]);	2459	AV *av = (AV *)SvRV (arg [0]);
2071		2460
2072	if (SvIVX (AvARRAY (av)[0]) > 0)	2461	if (SvIVX (AvARRAY (av)[0]) > 0)
2073	{	2462	{
2074	frame->data = (void *)av;	2463	frame->data = (void *)av;
2075	frame->prepare = prepare_nop;	2464	frame->prepare = prepare_nop;
2076	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2077	}	2465	}
2078	else	2466	else
2079	{	2467	{
2080	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2468	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2081		2469
2082	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2470	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2083	frame->prepare = prepare_schedule;	2471	frame->prepare = prepare_schedule;
2084		2472
2085	/* to avoid race conditions when a woken-up coro gets terminated */	2473	/* to avoid race conditions when a woken-up coro gets terminated */
2086	/* we arrange for a temporary on_destroy that calls adjust (0) */	2474	/* we arrange for a temporary on_destroy that calls adjust (0) */
2087	assert (!SvSTATE_current->on_destroy);//D
2088	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2475	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2089	}	2476	}
		2477	}
2090		2478
		2479	static void
		2480	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2481	{
		2482	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2091	frame->check = slf_check_semaphore_down;	2483	frame->check = slf_check_semaphore_down;
2092
2093	}	2484	}
2094		2485
2095	/*****************************************************************************/	2486	static void
2096	/* gensub: simple closure generation utility */	2487	slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2097
2098	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2099
2100	/* create a closure from XS, returns a code reference */
2101	/* the arg can be accessed via GENSUB_ARG from the callback */
2102	/* the callback must use dXSARGS/XSRETURN */
2103	static SV *
2104	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2105	{	2488	{
2106	CV *cv = (CV *)newSV (0);	2489	if (items >= 2)
		2490	{
		2491	/* callback form */
		2492	AV *av = (AV *)SvRV (arg [0]);
		2493	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2107		2494
2108	sv_upgrade ((SV *)cv, SVt_PVCV);	2495	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2109		2496
2110	CvANON_on (cv);	2497	if (SvIVX (AvARRAY (av)[0]) > 0)
2111	CvISXSUB_on (cv);	2498	coro_semaphore_adjust (aTHX_ av, 0);
2112	CvXSUB (cv) = xsub;
2113	GENSUB_ARG = arg;
2114		2499
2115	return newRV_noinc ((SV *)cv);	2500	frame->prepare = prepare_nop;
		2501	frame->check = slf_check_nop;
		2502	}
		2503	else
		2504	{
		2505	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2506	frame->check = slf_check_semaphore_wait;
		2507	}
		2508	}
		2509
		2510	/* signal */
		2511
		2512	static void
		2513	coro_signal_wake (pTHX_ AV *av, int count)
		2514	{
		2515	SvIVX (AvARRAY (av)[0]) = 0;
		2516
		2517	/* now signal count waiters */
		2518	while (count > 0 && AvFILLp (av) > 0)
		2519	{
		2520	SV *cb;
		2521
		2522	/* swap first two elements so we can shift a waiter */
		2523	cb = AvARRAY (av)[0];
		2524	AvARRAY (av)[0] = AvARRAY (av)[1];
		2525	AvARRAY (av)[1] = cb;
		2526
		2527	cb = av_shift (av);
		2528
		2529	api_ready (aTHX_ cb);
		2530	sv_setiv (cb, 0); /* signal waiter */
		2531	SvREFCNT_dec (cb);
		2532
		2533	--count;
		2534	}
		2535	}
		2536
		2537	static int
		2538	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2539	{
		2540	/* if we are about to throw, also stop waiting */
		2541	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2542	}
		2543
		2544	static void
		2545	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2546	{
		2547	AV *av = (AV *)SvRV (arg [0]);
		2548
		2549	if (SvIVX (AvARRAY (av)[0]))
		2550	{
		2551	SvIVX (AvARRAY (av)[0]) = 0;
		2552	frame->prepare = prepare_nop;
		2553	frame->check = slf_check_nop;
		2554	}
		2555	else
		2556	{
		2557	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2558
		2559	av_push (av, waiter);
		2560
		2561	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2562	frame->prepare = prepare_schedule;
		2563	frame->check = slf_check_signal_wait;
		2564	}
2116	}	2565	}
2117		2566
2118	/*****************************************************************************/	2567	/*****************************************************************************/
2119	/* Coro::AIO */	2568	/* Coro::AIO */
2120		2569
…		…
2135	dXSARGS;	2584	dXSARGS;
2136	AV *state = (AV *)GENSUB_ARG;	2585	AV *state = (AV *)GENSUB_ARG;
2137	SV *coro = av_pop (state);	2586	SV *coro = av_pop (state);
2138	SV *data_sv = newSV (sizeof (struct io_state));	2587	SV *data_sv = newSV (sizeof (struct io_state));
2139		2588
2140	av_extend (state, items);	2589	av_extend (state, items - 1);
2141		2590
2142	sv_upgrade (data_sv, SVt_PV);	2591	sv_upgrade (data_sv, SVt_PV);
2143	SvCUR_set (data_sv, sizeof (struct io_state));	2592	SvCUR_set (data_sv, sizeof (struct io_state));
2144	SvPOK_only (data_sv);	2593	SvPOK_only (data_sv);
2145		2594
…		…
2170	static int	2619	static int
2171	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2620	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2172	{	2621	{
2173	AV *state = (AV *)frame->data;	2622	AV *state = (AV *)frame->data;
2174		2623
		2624	/* if we are about to throw, return early */
		2625	/* this does not cancel the aio request, but at least */
		2626	/* it quickly returns */
		2627	if (CORO_THROW)
		2628	return 0;
		2629
2175	/* one element that is an RV? repeat! */	2630	/* one element that is an RV? repeat! */
2176	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2631	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2177	return 1;	2632	return 1;
2178		2633
2179	/* restore status */	2634	/* restore status */
…		…
2274	XSRETURN_EMPTY;	2729	XSRETURN_EMPTY;
2275	}	2730	}
2276		2731
2277	/*****************************************************************************/	2732	/*****************************************************************************/
2278		2733
		2734	#if CORO_CLONE
		2735	# include "clone.c"
		2736	#endif
		2737
2279	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2738	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2280		2739
2281	PROTOTYPES: DISABLE	2740	PROTOTYPES: DISABLE
2282		2741
2283	BOOT:	2742	BOOT:
…		…
2315		2774
2316	{	2775	{
2317	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2776	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2318		2777
2319	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2778	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2320	hv_store_ent (PL_custom_op_names, slf,	2779	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2321	newSVpv ("coro_slf", 0), 0);
2322		2780
2323	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2781	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2324	hv_store_ent (PL_custom_op_descs, slf,	2782	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2325	newSVpv ("coro schedule like function", 0), 0);
2326	}	2783	}
2327		2784
2328	coroapi.ver = CORO_API_VERSION;	2785	coroapi.ver = CORO_API_VERSION;
2329	coroapi.rev = CORO_API_REVISION;	2786	coroapi.rev = CORO_API_REVISION;
2330		2787
…		…
2349	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2806	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2350	}	2807	}
2351		2808
2352	SV *	2809	SV *
2353	new (char *klass, ...)	2810	new (char *klass, ...)
		2811	ALIAS:
		2812	Coro::new = 1
2354	CODE:	2813	CODE:
2355	{	2814	{
2356	struct coro *coro;	2815	struct coro *coro;
2357	MAGIC *mg;	2816	MAGIC *mg;
2358	HV *hv;	2817	HV *hv;
		2818	CV *cb;
2359	int i;	2819	int i;
		2820
		2821	if (items > 1)
		2822	{
		2823	cb = coro_sv_2cv (aTHX_ ST (1));
		2824
		2825	if (!ix)
		2826	{
		2827	if (CvISXSUB (cb))
		2828	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2829
		2830	if (!CvROOT (cb))
		2831	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2832	}
		2833	}
2360		2834
2361	Newz (0, coro, 1, struct coro);	2835	Newz (0, coro, 1, struct coro);
2362	coro->args = newAV ();	2836	coro->args = newAV ();
2363	coro->flags = CF_NEW;	2837	coro->flags = CF_NEW;
2364		2838
…		…
2369	coro->hv = hv = newHV ();	2843	coro->hv = hv = newHV ();
2370	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2844	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2371	mg->mg_flags |= MGf_DUP;	2845	mg->mg_flags |= MGf_DUP;
2372	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2846	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2373		2847
		2848	if (items > 1)
		2849	{
2374	av_extend (coro->args, items - 1);	2850	av_extend (coro->args, items - 1 + ix - 1);
		2851
		2852	if (ix)
		2853	{
		2854	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2855	cb = cv_coro_run;
		2856	}
		2857
		2858	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2859
2375	for (i = 1; i < items; i++)	2860	for (i = 2; i < items; i++)
2376	av_push (coro->args, newSVsv (ST (i)));	2861	av_push (coro->args, newSVsv (ST (i)));
		2862	}
2377	}	2863	}
2378	OUTPUT:	2864	OUTPUT:
2379	RETVAL	2865	RETVAL
2380		2866
2381	void	2867	void
…		…
2394	void	2880	void
2395	_exit (int code)	2881	_exit (int code)
2396	PROTOTYPE: $	2882	PROTOTYPE: $
2397	CODE:	2883	CODE:
2398	_exit (code);	2884	_exit (code);
		2885
		2886	#if CORO_CLONE
		2887
		2888	SV *
		2889	clone (Coro::State coro)
		2890	CODE:
		2891	{
		2892	struct coro *ncoro = coro_clone (coro);
		2893	MAGIC *mg;
		2894	/* TODO: too much duplication */
		2895	ncoro->hv = newHV ();
		2896	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2897	mg->mg_flags |= MGf_DUP;
		2898	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2899	}
		2900	OUTPUT:
		2901	RETVAL
		2902
		2903	#endif
2399		2904
2400	int	2905	int
2401	cctx_stacksize (int new_stacksize = 0)	2906	cctx_stacksize (int new_stacksize = 0)
2402	PROTOTYPE: ;$	2907	PROTOTYPE: ;$
2403	CODE:	2908	CODE:
…		…
2510	throw (Coro::State self, SV *throw = &PL_sv_undef)	3015	throw (Coro::State self, SV *throw = &PL_sv_undef)
2511	PROTOTYPE: $;$	3016	PROTOTYPE: $;$
2512	CODE:	3017	CODE:
2513	{	3018	{
2514	struct coro *current = SvSTATE_current;	3019	struct coro *current = SvSTATE_current;
2515	SV **throwp = self == current ? &coro_throw : &self->throw;	3020	SV **throwp = self == current ? &CORO_THROW : &self->except;
2516	SvREFCNT_dec (*throwp);	3021	SvREFCNT_dec (*throwp);
2517	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3022	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2518	}	3023	}
2519		3024
2520	void	3025	void
…		…
2579		3084
2580	BOOT:	3085	BOOT:
2581	{	3086	{
2582	int i;	3087	int i;
2583		3088
2584	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2585	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3089	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2586	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3090	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2587		3091	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3092	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2588	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3093	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2589	SvREADONLY_on (coro_current);	3094	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3095	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3096	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3097
		3098	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3099	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3100	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3101	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2590		3102
2591	coro_stash = gv_stashpv ("Coro", TRUE);	3103	coro_stash = gv_stashpv ("Coro", TRUE);
2592		3104
2593	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3105	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2594	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3106	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2602		3114
2603	{	3115	{
2604	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3116	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2605		3117
2606	coroapi.schedule = api_schedule;	3118	coroapi.schedule = api_schedule;
		3119	coroapi.schedule_to = api_schedule_to;
2607	coroapi.cede = api_cede;	3120	coroapi.cede = api_cede;
2608	coroapi.cede_notself = api_cede_notself;	3121	coroapi.cede_notself = api_cede_notself;
2609	coroapi.ready = api_ready;	3122	coroapi.ready = api_ready;
2610	coroapi.is_ready = api_is_ready;	3123	coroapi.is_ready = api_is_ready;
2611	coroapi.nready = coro_nready;	3124	coroapi.nready = coro_nready;
2612	coroapi.current = coro_current;	3125	coroapi.current = coro_current;
2613		3126
2614	GCoroAPI = &coroapi;	3127	/*GCoroAPI = &coroapi;*/
2615	sv_setiv (sv, (IV)&coroapi);	3128	sv_setiv (sv, (IV)&coroapi);
2616	SvREADONLY_on (sv);	3129	SvREADONLY_on (sv);
2617	}	3130	}
2618	}	3131	}
		3132
		3133	void
		3134	terminate (...)
		3135	CODE:
		3136	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2619		3137
2620	void	3138	void
2621	schedule (...)	3139	schedule (...)
2622	CODE:	3140	CODE:
2623	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3141	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2624		3142
2625	void	3143	void
		3144	schedule_to (...)
		3145	CODE:
		3146	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3147
		3148	void
		3149	cede_to (...)
		3150	CODE:
		3151	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3152
		3153	void
2626	cede (...)	3154	cede (...)
2627	CODE:	3155	CODE:
2628	CORO_EXECUTE_SLF_XS (slf_init_cede);	3156	CORO_EXECUTE_SLF_XS (slf_init_cede);
2629		3157
2630	void	3158	void
2631	cede_notself (...)	3159	cede_notself (...)
2632	CODE:	3160	CODE:
2633	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3161	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3162
		3163	void
		3164	_cancel (Coro::State self)
		3165	CODE:
		3166	coro_state_destroy (aTHX_ self);
		3167	coro_call_on_destroy (aTHX_ self);
2634		3168
2635	void	3169	void
2636	_set_current (SV *current)	3170	_set_current (SV *current)
2637	PROTOTYPE: $	3171	PROTOTYPE: $
2638	CODE:	3172	CODE:
…		…
2683	CODE:	3217	CODE:
2684	RETVAL = coro_nready;	3218	RETVAL = coro_nready;
2685	OUTPUT:	3219	OUTPUT:
2686	RETVAL	3220	RETVAL
2687		3221
2688	# for async_pool speedup
2689	void	3222	void
2690	_pool_1 (SV *cb)	3223	_pool_handler (...)
2691	CODE:	3224	CODE:
2692	{	3225	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2693	HV *hv = (HV *)SvRV (coro_current);
2694	struct coro *coro = SvSTATE_hv ((SV *)hv);
2695	AV *defav = GvAV (PL_defgv);
2696	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2697	AV *invoke_av;
2698	int i, len;
2699		3226
2700	if (!invoke)	3227	void
		3228	async_pool (SV *cv, ...)
		3229	PROTOTYPE: &@
		3230	PPCODE:
		3231	{
		3232	HV *hv = (HV *)av_pop (av_async_pool);
		3233	AV *av = newAV ();
		3234	SV *cb = ST (0);
		3235	int i;
		3236
		3237	av_extend (av, items - 2);
		3238	for (i = 1; i < items; ++i)
		3239	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3240
		3241	if ((SV *)hv == &PL_sv_undef)
2701	{	3242	{
2702	SV *old = PL_diehook;	3243	PUSHMARK (SP);
2703	PL_diehook = 0;	3244	EXTEND (SP, 2);
2704	SvREFCNT_dec (old);	3245	PUSHs (sv_Coro);
2705	croak ("\3async_pool terminate\2\n");	3246	PUSHs ((SV *)cv_pool_handler);
		3247	PUTBACK;
		3248	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3249	SPAGAIN;
		3250
		3251	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2706	}	3252	}
2707		3253
2708	SvREFCNT_dec (coro->saved_deffh);
2709	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2710
2711	hv_store (hv, "desc", sizeof ("desc") - 1,
2712	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2713
2714	invoke_av = (AV *)SvRV (invoke);
2715	len = av_len (invoke_av);
2716
2717	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2718
2719	if (len > 0)
2720	{	3254	{
2721	av_fill (defav, len - 1);	3255	struct coro *coro = SvSTATE_hv (hv);
2722	for (i = 0; i < len; ++i)	3256
2723	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3257	assert (!coro->invoke_cb);
		3258	assert (!coro->invoke_av);
		3259	coro->invoke_cb = SvREFCNT_inc (cb);
		3260	coro->invoke_av = av;
2724	}	3261	}
		3262
		3263	api_ready (aTHX_ (SV *)hv);
		3264
		3265	if (GIMME_V != G_VOID)
		3266	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3267	else
		3268	SvREFCNT_dec (hv);
2725	}	3269	}
		3270
		3271	SV *
		3272	rouse_cb ()
		3273	PROTOTYPE:
		3274	CODE:
		3275	RETVAL = coro_new_rouse_cb (aTHX);
		3276	OUTPUT:
		3277	RETVAL
2726		3278
2727	void	3279	void
2728	_pool_2 (SV *cb)	3280	rouse_wait (...)
		3281	PROTOTYPE: ;$
2729	CODE:	3282	PPCODE:
2730	{	3283	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2731	HV *hv = (HV *)SvRV (coro_current);
2732	struct coro *coro = SvSTATE_hv ((SV *)hv);
2733
2734	sv_setsv (cb, &PL_sv_undef);
2735
2736	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2737	coro->saved_deffh = 0;
2738
2739	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2740	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2741	{
2742	SV *old = PL_diehook;
2743	PL_diehook = 0;
2744	SvREFCNT_dec (old);
2745	croak ("\3async_pool terminate\2\n");
2746	}
2747
2748	av_clear (GvAV (PL_defgv));
2749	hv_store (hv, "desc", sizeof ("desc") - 1,
2750	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2751
2752	coro->prio = 0;
2753
2754	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2755	api_trace (aTHX_ coro_current, 0);
2756
2757	av_push (av_async_pool, newSVsv (coro_current));
2758	}
2759		3284
2760		3285
2761	MODULE = Coro::State PACKAGE = PerlIO::cede	3286	MODULE = Coro::State PACKAGE = PerlIO::cede
2762		3287
2763	BOOT:	3288	BOOT:
…		…
2765		3290
2766		3291
2767	MODULE = Coro::State PACKAGE = Coro::Semaphore	3292	MODULE = Coro::State PACKAGE = Coro::Semaphore
2768		3293
2769	SV *	3294	SV *
2770	new (SV *klass, SV *count_ = 0)	3295	new (SV *klass, SV *count = 0)
2771	CODE:	3296	CODE:
2772	{	3297	RETVAL = sv_bless (
2773	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3298	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2774	AV *av = newAV ();	3299	GvSTASH (CvGV (cv))
2775	SV **ary;	3300	);
		3301	OUTPUT:
		3302	RETVAL
2776		3303
2777	/* unfortunately, building manually saves memory */	3304	# helper for Coro::Channel
2778	Newx (ary, 2, SV *);	3305	SV *
2779	AvALLOC (av) = ary;	3306	_alloc (int count)
2780	AvARRAY (av) = ary;	3307	CODE:
2781	AvMAX (av) = 1;	3308	RETVAL = coro_waitarray_new (aTHX_ count);
2782	AvFILLp (av) = 0;
2783	ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2784
2785	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2786	}
2787	OUTPUT:	3309	OUTPUT:
2788	RETVAL	3310	RETVAL
2789		3311
2790	SV *	3312	SV *
2791	count (SV *self)	3313	count (SV *self)
…		…
2800	adjust = 1	3322	adjust = 1
2801	CODE:	3323	CODE:
2802	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3324	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2803		3325
2804	void	3326	void
2805	down (SV *self)	3327	down (...)
2806	CODE:	3328	CODE:
2807	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3329	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3330
		3331	void
		3332	wait (...)
		3333	CODE:
		3334	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2808		3335
2809	void	3336	void
2810	try (SV *self)	3337	try (SV *self)
2811	PPCODE:	3338	PPCODE:
2812	{	3339	{
…		…
2824	XSRETURN_NO;	3351	XSRETURN_NO;
2825	}	3352	}
2826		3353
2827	void	3354	void
2828	waiters (SV *self)	3355	waiters (SV *self)
2829	CODE:	3356	PPCODE:
2830	{	3357	{
2831	AV *av = (AV *)SvRV (self);	3358	AV *av = (AV *)SvRV (self);
		3359	int wcount = AvFILLp (av) + 1 - 1;
2832		3360
2833	if (GIMME_V == G_SCALAR)	3361	if (GIMME_V == G_SCALAR)
2834	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3362	XPUSHs (sv_2mortal (newSViv (wcount)));
2835	else	3363	else
2836	{	3364	{
2837	int i;	3365	int i;
2838	EXTEND (SP, AvFILLp (av) + 1 - 1);	3366	EXTEND (SP, wcount);
2839	for (i = 1; i <= AvFILLp (av); ++i)	3367	for (i = 1; i <= wcount; ++i)
2840	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3368	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2841	}	3369	}
2842	}	3370	}
		3371
		3372	MODULE = Coro::State PACKAGE = Coro::Signal
		3373
		3374	SV *
		3375	new (SV *klass)
		3376	CODE:
		3377	RETVAL = sv_bless (
		3378	coro_waitarray_new (aTHX_ 0),
		3379	GvSTASH (CvGV (cv))
		3380	);
		3381	OUTPUT:
		3382	RETVAL
		3383
		3384	void
		3385	wait (...)
		3386	CODE:
		3387	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3388
		3389	void
		3390	broadcast (SV *self)
		3391	CODE:
		3392	{
		3393	AV *av = (AV *)SvRV (self);
		3394	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3395	}
		3396
		3397	void
		3398	send (SV *self)
		3399	CODE:
		3400	{
		3401	AV *av = (AV *)SvRV (self);
		3402
		3403	if (AvFILLp (av))
		3404	coro_signal_wake (aTHX_ av, 1);
		3405	else
		3406	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3407	}
		3408
		3409	IV
		3410	awaited (SV *self)
		3411	CODE:
		3412	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3413	OUTPUT:
		3414	RETVAL
2843		3415
2844		3416
2845	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3417	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2846		3418
2847	BOOT:	3419	BOOT:
…		…
2875		3447
2876	void	3448	void
2877	_register (char *target, char *proto, SV *req)	3449	_register (char *target, char *proto, SV *req)
2878	CODE:	3450	CODE:
2879	{	3451	{
2880	HV *st;	3452	CV *req_cv = coro_sv_2cv (aTHX_ req);
2881	GV *gvp;
2882	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2883	/* newXSproto doesn't return the CV on 5.8 */	3453	/* newXSproto doesn't return the CV on 5.8 */
2884	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3454	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2885	sv_setpv ((SV *)slf_cv, proto);	3455	sv_setpv ((SV *)slf_cv, proto);
2886	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3456	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2887	}	3457	}

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