[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.291 by root, Tue Nov 18 05:55:04 2008 UTC vs.
Revision 1.318 by root, Thu Nov 20 07:02:43 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
…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	\|\| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
103		106
104	/* 5.8.7 */	107	/* 5.8.7 */
105	#ifndef SvRV_set	108	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	109	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	110	#endif
…		…
120	#endif	123	#endif
121		124
122	/* The next macros try to return the current stack pointer, in an as	125	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	126	* portable way as possible. */
124	#if __GNUC__ >= 4	127	#if __GNUC__ >= 4
		128	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	129	# define STACKLEVEL __builtin_frame_address (0)
126	#else	130	#else
127	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel	131	# define dSTACKLEVEL volatile void *stacklevel
		132	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	133	#endif
129		134
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	135	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		136
132	#if __GNUC__ >= 3	137	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	148	#define expect_true(expr) expect ((expr) != 0, 1)
144		149
145	#define NOINLINE attribute ((noinline))	150	#define NOINLINE attribute ((noinline))
146		151
147	#include "CoroAPI.h"	152	#include "CoroAPI.h"
		153	#define GCoroAPI (&coroapi) /* very sneaky */
148		154
149	#ifdef USE_ITHREADS	155	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	156	# if CORO_PTHREAD
151	static void *coro_thx;	157	static void *coro_thx;
152	# endif	158	# endif
…		…
164	static AV main_mainstack; / used to differentiate between $main and others */	170	static AV main_mainstack; / used to differentiate between $main and others */
165	static JMPENV *main_top_env;	171	static JMPENV *main_top_env;
166	static HV coro_state_stash, coro_stash;	172	static HV coro_state_stash, coro_stash;
167	static volatile SV coro_mortal; / will be freed/thrown after next transfer */	173	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
168		174
		175	static AV av_destroy; / destruction queue */
		176	static SV sv_manager; / the manager coro */
		177
169	static GV irsgv; / $/ */	178	static GV irsgv; / $/ */
170	static GV stdoutgv; / STDOUT /	179	static GV stdoutgv; / STDOUT /
171	static SV *rv_diehook;	180	static SV *rv_diehook;
172	static SV *rv_warnhook;	181	static SV *rv_warnhook;
173	static HV hv_sig; / %SIG */	182	static HV hv_sig; / %SIG */
174		183
175	/* async_pool helper stuff */	184	/* async_pool helper stuff */
176	static SV *sv_pool_rss;	185	static SV *sv_pool_rss;
177	static SV *sv_pool_size;	186	static SV *sv_pool_size;
		187	static SV sv_async_pool_idle; / description string */
178	static AV *av_async_pool;	188	static AV av_async_pool; / idle pool */
		189	static SV sv_Coro; / class string */
		190	static CV *cv_pool_handler;
		191	static CV *cv_coro_state_new;
179		192
180	/* Coro::AnyEvent */	193	/* Coro::AnyEvent */
181	static SV *sv_activity;	194	static SV *sv_activity;
182		195
183	static struct coro_cctx *cctx_first;	196	static struct coro_cctx *cctx_first;
…		…
243	/* state data */	256	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	257	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	258	AV *mainstack;
246	perl_slots slot; / basically the saved sp */	259	perl_slots slot; / basically the saved sp */
247		260
		261	CV startcv; / the CV to execute */
248	AV args; / data associated with this coroutine (initial args) */	262	AV args; / data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	263	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	264	int flags; /* CF_ flags */
251	HV hv; / the perl hash associated with this coro, if any */	265	HV hv; / the perl hash associated with this coro, if any */
252	void (on_destroy)(pTHX_ struct coro coro);	266	void (on_destroy)(pTHX_ struct coro coro);
253		267
254	/* statistics */	268	/* statistics */
255	int usecount; /* number of transfers to this coro */	269	int usecount; /* number of transfers to this coro */
256		270
257	/* coro process data */	271	/* coro process data */
258	int prio;	272	int prio;
259	SV throw; / exception to be thrown */	273	SV except; / exception to be thrown */
		274	SV *rouse_cb;
260		275
261	/* async_pool */	276	/* async_pool */
262	SV *saved_deffh;	277	SV *saved_deffh;
		278	SV *invoke_cb;
		279	AV *invoke_av;
263		280
264	/* linked list */	281	/* linked list */
265	struct coro next, prev;	282	struct coro next, prev;
266	};	283	};
267		284
…		…
270		287
271	/* the following variables are effectively part of the perl context */	288	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	289	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	290	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	291	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		292
277	/ Coro ******************************************************************/	293	/ Coro ******************************************************************/
278		294
279	#define PRIO_MAX 3	295	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	296	#define PRIO_HIGH 1
…		…
285		301
286	/* for Coro.pm */	302	/* for Coro.pm */
287	static SV *coro_current;	303	static SV *coro_current;
288	static SV *coro_readyhook;	304	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	305	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		306	static CV cv_coro_run, cv_coro_terminate;
290	static struct coro *coro_first;	307	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	308	#define coro_nready coroapi.nready
292		309
293	/ lowlevel stuff ********************************************************/	310	/ lowlevel stuff ********************************************************/
294		311
…		…
318	#if PERL_VERSION_ATLEAST (5,10,0)	335	#if PERL_VERSION_ATLEAST (5,10,0)
319	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	336	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
320	get_hv (name, create);	337	get_hv (name, create);
321	#endif	338	#endif
322	return get_hv (name, create);	339	return get_hv (name, create);
		340	}
		341
		342	/* may croak */
		343	INLINE CV *
		344	coro_sv_2cv (pTHX_ SV *sv)
		345	{
		346	HV *st;
		347	GV *gvp;
		348	return sv_2cv (sv, &st, &gvp, 0);
323	}	349	}
324		350
325	static AV *	351	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	352	coro_clone_padlist (pTHX_ CV *cv)
327	{	353	{
…		…
446	else	472	else
447	{	473	{
448	#if CORO_PREFER_PERL_FUNCTIONS	474	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	475	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	476	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	477	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	478	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	479	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	480	SvREFCNT_dec (cp);
455	#else	481	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	482	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
509		535
510	PUTBACK;	536	PUTBACK;
511	}	537	}
512		538
513	slf_frame = c->slf_frame;	539	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	540	CORO_THROW = c->except;
515	}	541	}
516		542
517	static void	543	static void
518	save_perl (pTHX_ Coro__State c)	544	save_perl (pTHX_ Coro__State c)
519	{	545	{
520	c->throw = coro_throw;	546	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	547	c->slf_frame = slf_frame;
522		548
523	{	549	{
524	dSP;	550	dSP;
525	I32 cxix = cxstack_ix;	551	I32 cxix = cxstack_ix;
…		…
600	* of perl.c:init_stacks, except that it uses less memory	626	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	627	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	628	* not usually need a lot of stackspace.
603	*/	629	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	630	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	631	# define coro_init_stacks(thx) init_stacks ()
606	#else	632	#else
607	static void	633	static void
608	coro_init_stacks (pTHX)	634	coro_init_stacks (pTHX)
609	{	635	{
610	PL_curstackinfo = new_stackinfo(32, 8);	636	PL_curstackinfo = new_stackinfo(32, 8);
…		…
673	#if !PERL_VERSION_ATLEAST (5,10,0)	699	#if !PERL_VERSION_ATLEAST (5,10,0)
674	Safefree (PL_retstack);	700	Safefree (PL_retstack);
675	#endif	701	#endif
676	}	702	}
677		703
		704	#define CORO_RSS \
		705	rss += sizeof (SYM (curstackinfo)); \
		706	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		707	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		708	rss += SYM (tmps_max) * sizeof (SV *); \
		709	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		710	rss += SYM (scopestack_max) * sizeof (I32); \
		711	rss += SYM (savestack_max) * sizeof (ANY);
		712
678	static size_t	713	static size_t
679	coro_rss (pTHX_ struct coro *coro)	714	coro_rss (pTHX_ struct coro *coro)
680	{	715	{
681	size_t rss = sizeof (*coro);	716	size_t rss = sizeof (*coro);
682		717
683	if (coro->mainstack)	718	if (coro->mainstack)
684	{	719	{
685	perl_slots tmp_slot;
686	perl_slots *slot;
687
688	if (coro->flags & CF_RUNNING)	720	if (coro->flags & CF_RUNNING)
689	{	721	{
690	slot = &tmp_slot;	722	#define SYM(sym) PL_ ## sym
691		723	CORO_RSS;
692	#define VAR(name,type) slot->name = PL_ ## name;
693	# include "state.h"
694	#undef VAR	724	#undef SYM
695	}	725	}
696	else	726	else
697	slot = coro->slot;
698
699	if (slot)
700	{	727	{
701	rss += sizeof (slot->curstackinfo);	728	#define SYM(sym) coro->slot->sym
702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	729	CORO_RSS;
703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	730	#undef SYM
704	rss += slot->tmps_max * sizeof (SV *);
705	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
706	rss += slot->scopestack_max * sizeof (I32);
707	rss += slot->savestack_max * sizeof (ANY);
708
709	#if !PERL_VERSION_ATLEAST (5,10,0)
710	rss += slot->retstack_max * sizeof (OP *);
711	#endif
712	}	731	}
713	}	732	}
714		733
715	return rss;	734	return rss;
716	}	735	}
…		…
816		835
817	static int	836	static int
818	slf_check_nop (pTHX_ struct CoroSLF *frame)	837	slf_check_nop (pTHX_ struct CoroSLF *frame)
819	{	838	{
820	return 0;	839	return 0;
		840	}
		841
		842	static int
		843	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		844	{
		845	return 1;
821	}	846	}
822		847
823	static UNOP coro_setup_op;	848	static UNOP coro_setup_op;
824		849
825	static void NOINLINE /* noinline to keep it out of the transfer fast path */	850	static void NOINLINE /* noinline to keep it out of the transfer fast path */
…		…
857	{	882	{
858	dSP;	883	dSP;
859	UNOP myop;	884	UNOP myop;
860		885
861	Zero (&myop, 1, UNOP);	886	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	887	myop.op_next = Nullop;
		888	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	889	myop.op_flags = OPf_WANT_VOID;
864		890
865	PUSHMARK (SP);	891	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	892	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	893	PUTBACK;
868	PL_op = (OP *)&myop;	894	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	895	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	896	}
872		897
873	/* this newly created coroutine might be run on an existing cctx which most	898	/* this newly created coroutine might be run on an existing cctx which most
874	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	899	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	900	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	901	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	902	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		903
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	904	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		905	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	906	coro_setup_op.op_type = OP_CUSTOM;
881	coro_setup_op.op_ppaddr = pp_slf;	907	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	908	/* no flags etc. required, as an init function won't be called */
883		909
884	PL_op = (OP *)&coro_setup_op;	910	PL_op = (OP *)&coro_setup_op;
885		911
886	/* copy throw, in case it was set before coro_setup */	912	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	913	CORO_THROW = coro->except;
888	}	914	}
889		915
890	static void	916	static void
891	coro_destruct (pTHX_ struct coro *coro)	917	coro_destruct (pTHX_ struct coro *coro)
892	{	918	{
…		…
916		942
917	SvREFCNT_dec (PL_diehook);	943	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	944	SvREFCNT_dec (PL_warnhook);
919		945
920	SvREFCNT_dec (coro->saved_deffh);	946	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	947	SvREFCNT_dec (coro->rouse_cb);
		948	SvREFCNT_dec (coro->invoke_cb);
		949	SvREFCNT_dec (coro->invoke_av);
922		950
923	coro_destruct_stacks (aTHX);	951	coro_destruct_stacks (aTHX);
924	}	952	}
925		953
926	INLINE void	954	INLINE void
…		…
1013	SAVETMPS;	1041	SAVETMPS;
1014	EXTEND (SP, 3);	1042	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1043	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1044	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1045	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1046	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1047	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1048	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1049	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1022	SPAGAIN;	1050	SPAGAIN;
1023	FREETMPS;	1051	FREETMPS;
…		…
1070	static int	1098	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1099	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1100	{
1073	*frame = cctx_ssl_frame;	1101	*frame = cctx_ssl_frame;
1074		1102
1075	return 1;	1103	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1104	}
1077		1105
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1106	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1107	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1108	cctx_prepare (pTHX_ coro_cctx *cctx)
1081	{	1109	{
1082	PL_top_env = &PL_start_env;	1110	PL_top_env = &PL_start_env;
1083		1111
1084	if (cctx->flags & CC_TRACE)	1112	if (cctx->flags & CC_TRACE)
1085	PL_runops = runops_trace;	1113	PL_runops = runops_trace;
1086		1114
1087	/* we already must be in an SLF call, there is no other valid way	1115	/* we already must be executing an SLF op, there is no other valid way
1088	* that can lead to creation of a new cctx */	1116	* that can lead to creation of a new cctx */
1089	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1117	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1118	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1119
		1120	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1092	cctx_ssl_cctx = cctx;	1121	cctx_ssl_cctx = cctx;
1093	cctx_ssl_frame = slf_frame;	1122	cctx_ssl_frame = slf_frame;
1094		1123
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1124	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1125	slf_frame.check = slf_check_set_stacklevel;
…		…
1128	transfer_tail (aTHX);	1157	transfer_tail (aTHX);
1129		1158
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1159	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1160	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1161	perl_run (PL_curinterp);
		1162	/*
		1163	* Unfortunately, there is no way to get at the return values of the
		1164	* coro body here, as perl_run destroys these
		1165	*/
1133		1166
1134	/*	1167	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1168	* If perl-run returns we assume exit() was being called or the coro
1136	* fell off the end, which seems to be the only valid (non-bug)	1169	* fell off the end, which seems to be the only valid (non-bug)
1137	* reason for perl_run to return. We try to exit by jumping to the	1170	* reason for perl_run to return. We try to exit by jumping to the
…		…
1317	dSTACKLEVEL;	1350	dSTACKLEVEL;
1318		1351
1319	/* sometimes transfer is only called to set idle_sp */	1352	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1353	if (expect_false (!next))
1321	{	1354	{
1322	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1355	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1323	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1356	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1324	}	1357	}
1325	else if (expect_true (prev != next))	1358	else if (expect_true (prev != next))
1326	{	1359	{
1327	coro_cctx *prev__cctx;	1360	coro_cctx *prev__cctx;
…		…
1352		1385
1353	prev__cctx = prev->cctx;	1386	prev__cctx = prev->cctx;
1354		1387
1355	/* possibly untie and reuse the cctx */	1388	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1389	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1390	prev__cctx->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1391	&& !(prev__cctx->flags & CC_TRACE)
1359	&& !force_cctx	1392	&& !force_cctx
1360	))	1393	))
1361	{	1394	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1395	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
…		…
1429		1462
1430	coro->slot = 0;	1463	coro->slot = 0;
1431	}	1464	}
1432		1465
1433	cctx_destroy (coro->cctx);	1466	cctx_destroy (coro->cctx);
		1467	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1468	SvREFCNT_dec (coro->args);
		1469	SvREFCNT_dec (CORO_THROW);
1435		1470
1436	if (coro->next) coro->next->prev = coro->prev;	1471	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1472	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1473	if (coro == coro_first) coro_first = coro->next;
1439		1474
…		…
1493		1528
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1529	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1530	TRANSFER (ta, 1);
1496	}	1531	}
1497		1532
		1533	/*****************************************************************************/
		1534	/* gensub: simple closure generation utility */
		1535
		1536	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1537
		1538	/* create a closure from XS, returns a code reference */
		1539	/* the arg can be accessed via GENSUB_ARG from the callback */
		1540	/* the callback must use dXSARGS/XSRETURN */
		1541	static SV *
		1542	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
		1543	{
		1544	CV cv = (CV )newSV (0);
		1545
		1546	sv_upgrade ((SV *)cv, SVt_PVCV);
		1547
		1548	CvANON_on (cv);
		1549	CvISXSUB_on (cv);
		1550	CvXSUB (cv) = xsub;
		1551	GENSUB_ARG = arg;
		1552
		1553	return newRV_noinc ((SV *)cv);
		1554	}
		1555
1498	/ Coro ******************************************************************/	1556	/ Coro ******************************************************************/
1499		1557
1500	INLINE void	1558	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1559	coro_enq (pTHX_ struct coro *coro)
1502	{	1560	{
…		…
1563	api_is_ready (pTHX_ SV *coro_sv)	1621	api_is_ready (pTHX_ SV *coro_sv)
1564	{	1622	{
1565	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1623	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566	}	1624	}
1567		1625
		1626	/* expects to own a reference to next->hv */
1568	INLINE void	1627	INLINE void
		1628	prepare_schedule_to (pTHX_ struct coro_transfer_args ta, struct coro next)
		1629	{
		1630	SV *prev_sv = SvRV (coro_current);
		1631
		1632	ta->prev = SvSTATE_hv (prev_sv);
		1633	ta->next = next;
		1634
		1635	TRANSFER_CHECK (*ta);
		1636
		1637	SvRV_set (coro_current, (SV *)next->hv);
		1638
		1639	free_coro_mortal (aTHX);
		1640	coro_mortal = prev_sv;
		1641	}
		1642
		1643	static void
1569	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1644	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1570	{	1645	{
1571	SV prev_sv, next_sv;
1572
1573	for (;;)	1646	for (;;)
1574	{	1647	{
1575	next_sv = coro_deq (aTHX);	1648	SV *next_sv = coro_deq (aTHX);
1576		1649
1577	/* nothing to schedule: call the idle handler */
1578	if (expect_false (!next_sv))	1650	if (expect_true (next_sv))
1579	{	1651	{
		1652	struct coro *next = SvSTATE_hv (next_sv);
		1653
		1654	/* cannot transfer to destroyed coros, skip and look for next */
		1655	if (expect_false (next->flags & CF_DESTROYED))
		1656	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1657	else
		1658	{
		1659	next->flags &= ~CF_READY;
		1660	--coro_nready;
		1661
		1662	return prepare_schedule_to (aTHX_ ta, next);
		1663	}
		1664	}
		1665	else
		1666	{
		1667	/* nothing to schedule: call the idle handler */
1580	dSP;	1668	dSP;
1581		1669
1582	ENTER;	1670	ENTER;
1583	SAVETMPS;	1671	SAVETMPS;
1584		1672
…		…
1586	PUTBACK;	1674	PUTBACK;
1587	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);	1675	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);
1588		1676
1589	FREETMPS;	1677	FREETMPS;
1590	LEAVE;	1678	LEAVE;
1591	continue;
1592	}	1679	}
1593
1594	ta->next = SvSTATE_hv (next_sv);
1595
1596	/* cannot transfer to destroyed coros, skip and look for next */
1597	if (expect_false (ta->next->flags & CF_DESTROYED))
1598	{
1599	SvREFCNT_dec (next_sv);
1600	/* coro_nready has already been taken care of by destroy */
1601	continue;
1602	}
1603
1604	--coro_nready;
1605	break;
1606	}	1680	}
1607
1608	/* free this only after the transfer */
1609	prev_sv = SvRV (coro_current);
1610	ta->prev = SvSTATE_hv (prev_sv);
1611	TRANSFER_CHECK (*ta);
1612	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1613	ta->next->flags &= ~CF_READY;
1614	SvRV_set (coro_current, next_sv);
1615
1616	free_coro_mortal (aTHX);
1617	coro_mortal = prev_sv;
1618	}	1681	}
1619		1682
1620	INLINE void	1683	INLINE void
1621	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1684	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622	{	1685	{
…		…
1643	{	1706	{
1644	struct coro_transfer_args ta;	1707	struct coro_transfer_args ta;
1645		1708
1646	prepare_schedule (aTHX_ &ta);	1709	prepare_schedule (aTHX_ &ta);
1647	TRANSFER (ta, 1);	1710	TRANSFER (ta, 1);
		1711	}
		1712
		1713	static void
		1714	api_schedule_to (pTHX_ SV *coro_sv)
		1715	{
		1716	struct coro_transfer_args ta;
		1717	struct coro *next = SvSTATE (coro_sv);
		1718
		1719	SvREFCNT_inc_NN (coro_sv);
		1720	prepare_schedule_to (aTHX_ &ta, next);
1648	}	1721	}
1649		1722
1650	static int	1723	static int
1651	api_cede (pTHX)	1724	api_cede (pTHX)
1652	{	1725	{
…		…
1699	if (coro->flags & CF_RUNNING)	1772	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1773	PL_runops = RUNOPS_DEFAULT;
1701	else	1774	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1775	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1776	}
		1777	}
		1778
		1779	static void
		1780	coro_call_on_destroy (pTHX_ struct coro *coro)
		1781	{
		1782	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1783	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1784
		1785	if (on_destroyp)
		1786	{
		1787	AV on_destroy = (AV )SvRV (*on_destroyp);
		1788
		1789	while (AvFILLp (on_destroy) >= 0)
		1790	{
		1791	dSP; /* don't disturb outer sp */
		1792	SV *cb = av_pop (on_destroy);
		1793
		1794	PUSHMARK (SP);
		1795
		1796	if (statusp)
		1797	{
		1798	int i;
		1799	AV status = (AV )SvRV (*statusp);
		1800	EXTEND (SP, AvFILLp (status) + 1);
		1801
		1802	for (i = 0; i <= AvFILLp (status); ++i)
		1803	PUSHs (AvARRAY (status)[i]);
		1804	}
		1805
		1806	PUTBACK;
		1807	call_sv (sv_2mortal (cb), G_VOID \| G_DISCARD);
		1808	}
		1809	}
		1810	}
		1811
		1812	static void
		1813	slf_init_terminate (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1814	{
		1815	int i;
		1816	HV hv = (HV )SvRV (coro_current);
		1817	AV *av = newAV ();
		1818
		1819	av_extend (av, items - 1);
		1820	for (i = 0; i < items; ++i)
		1821	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1822
		1823	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1824
		1825	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */
		1826	api_ready (aTHX_ sv_manager);
		1827
		1828	frame->prepare = prepare_schedule;
		1829	frame->check = slf_check_repeat;
		1830	}
		1831
		1832	/*****************************************************************************/
		1833	/* async pool handler */
		1834
		1835	static int
		1836	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1837	{
		1838	HV hv = (HV )SvRV (coro_current);
		1839	struct coro coro = (struct coro )frame->data;
		1840
		1841	if (!coro->invoke_cb)
		1842	return 1; /* loop till we have invoke */
		1843	else
		1844	{
		1845	hv_store (hv, "desc", sizeof ("desc") - 1,
		1846	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1847
		1848	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1849
		1850	{
		1851	dSP;
		1852	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1853	PUTBACK;
		1854	}
		1855
		1856	SvREFCNT_dec (GvAV (PL_defgv));
		1857	GvAV (PL_defgv) = coro->invoke_av;
		1858	coro->invoke_av = 0;
		1859
		1860	return 0;
		1861	}
		1862	}
		1863
		1864	static void
		1865	slf_init_pool_handler (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1866	{
		1867	HV hv = (HV )SvRV (coro_current);
		1868	struct coro coro = SvSTATE_hv ((SV )hv);
		1869
		1870	if (expect_true (coro->saved_deffh))
		1871	{
		1872	/* subsequent iteration */
		1873	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1874	coro->saved_deffh = 0;
		1875
		1876	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1877	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1878	{
		1879	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1880	coro->invoke_av = newAV ();
		1881
		1882	frame->prepare = prepare_nop;
		1883	}
		1884	else
		1885	{
		1886	av_clear (GvAV (PL_defgv));
		1887	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1888
		1889	coro->prio = 0;
		1890
		1891	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1892	api_trace (aTHX_ coro_current, 0);
		1893
		1894	frame->prepare = prepare_schedule;
		1895	av_push (av_async_pool, SvREFCNT_inc (hv));
		1896	}
		1897	}
		1898	else
		1899	{
		1900	/* first iteration, simply fall through */
		1901	frame->prepare = prepare_nop;
		1902	}
		1903
		1904	frame->check = slf_check_pool_handler;
		1905	frame->data = (void *)coro;
		1906	}
		1907
		1908	/*****************************************************************************/
		1909	/* rouse callback */
		1910
		1911	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1912
		1913	static void
		1914	coro_rouse_callback (pTHX_ CV *cv)
		1915	{
		1916	dXSARGS;
		1917	SV data = (SV )GENSUB_ARG;
		1918
		1919	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1920	{
		1921	/* first call, set args */
		1922	AV *av = newAV ();
		1923	SV *coro = SvRV (data);
		1924
		1925	SvRV_set (data, (SV *)av);
		1926	api_ready (aTHX_ coro);
		1927	SvREFCNT_dec (coro);
		1928
		1929	/* better take a full copy of the arguments */
		1930	while (items--)
		1931	av_store (av, items, newSVsv (ST (items)));
		1932	}
		1933
		1934	XSRETURN_EMPTY;
		1935	}
		1936
		1937	static int
		1938	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1939	{
		1940	SV data = (SV )frame->data;
		1941
		1942	if (CORO_THROW)
		1943	return 0;
		1944
		1945	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1946	return 1;
		1947
		1948	/* now push all results on the stack */
		1949	{
		1950	dSP;
		1951	AV av = (AV )SvRV (data);
		1952	int i;
		1953
		1954	EXTEND (SP, AvFILLp (av) + 1);
		1955	for (i = 0; i <= AvFILLp (av); ++i)
		1956	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1957
		1958	/* we have stolen the elements, so ste length to zero and free */
		1959	AvFILLp (av) = -1;
		1960	av_undef (av);
		1961
		1962	PUTBACK;
		1963	}
		1964
		1965	return 0;
		1966	}
		1967
		1968	static void
		1969	slf_init_rouse_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1970	{
		1971	SV *cb;
		1972
		1973	if (items)
		1974	cb = arg [0];
		1975	else
		1976	{
		1977	struct coro *coro = SvSTATE_current;
		1978
		1979	if (!coro->rouse_cb)
		1980	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1981
		1982	cb = sv_2mortal (coro->rouse_cb);
		1983	coro->rouse_cb = 0;
		1984	}
		1985
		1986	if (!SvROK (cb)
		1987	\|\| SvTYPE (SvRV (cb)) != SVt_PVCV
		1988	\|\| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1989	croak ("Coro::rouse_wait called with illegal callback argument,");
		1990
		1991	{
		1992	CV cv = (CV )SvRV (cb); /* for GENSUB_ARG */
		1993	SV data = (SV )GENSUB_ARG;
		1994
		1995	frame->data = (void *)data;
		1996	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		1997	frame->check = slf_check_rouse_wait;
		1998	}
		1999	}
		2000
		2001	static SV *
		2002	coro_new_rouse_cb (pTHX)
		2003	{
		2004	HV hv = (HV )SvRV (coro_current);
		2005	struct coro *coro = SvSTATE_hv (hv);
		2006	SV data = newRV_inc ((SV )hv);
		2007	SV cb = gensub (aTHX_ coro_rouse_callback, (void )data);
		2008
		2009	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2010	SvREFCNT_dec (data); /* magicext increases the refcount */
		2011
		2012	SvREFCNT_dec (coro->rouse_cb);
		2013	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2014
		2015	return cb;
1704	}	2016	}
1705		2017
1706	/*****************************************************************************/	2018	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	2019	/* schedule-like-function opcode (SLF) */
1708		2020
…		…
1755	static void	2067	static void
1756	slf_init_schedule (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2068	slf_init_schedule (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1757	{	2069	{
1758	frame->prepare = prepare_schedule;	2070	frame->prepare = prepare_schedule;
1759	frame->check = slf_check_nop;	2071	frame->check = slf_check_nop;
		2072	}
		2073
		2074	static void
		2075	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2076	{
		2077	struct coro next = (struct coro )slf_frame.data;
		2078
		2079	SvREFCNT_inc_NN (next->hv);
		2080	prepare_schedule_to (aTHX_ ta, next);
		2081	}
		2082
		2083	static void
		2084	slf_init_schedule_to (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2085	{
		2086	if (!items)
		2087	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2088
		2089	frame->data = (void *)SvSTATE (arg [0]);
		2090	frame->prepare = slf_prepare_schedule_to;
		2091	frame->check = slf_check_nop;
		2092	}
		2093
		2094	static void
		2095	slf_init_cede_to (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2096	{
		2097	api_ready (aTHX_ SvRV (coro_current));
		2098
		2099	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760	}	2100	}
1761		2101
1762	static void	2102	static void
1763	slf_init_cede (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2103	slf_init_cede (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1764	{	2104	{
…		…
1835	}	2175	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	2176	while (slf_frame.check (aTHX_ &slf_frame));
1837		2177
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2178	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		2179
		2180	/* exception handling */
		2181	if (expect_false (CORO_THROW))
		2182	{
		2183	SV *exception = sv_2mortal (CORO_THROW);
		2184
		2185	CORO_THROW = 0;
		2186	sv_setsv (ERRSV, exception);
		2187	croak (0);
		2188	}
		2189
1840	/* return value handling - mostly like entersub */	2190	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2191	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2192	if (GIMME_V == G_SCALAR)
1843	{	2193	{
1844	dSP;	2194	dSP;
…		…
1850	bot [1] = *sp;	2200	bot [1] = *sp;
1851		2201
1852	SP = bot + 1;	2202	SP = bot + 1;
1853		2203
1854	PUTBACK;	2204	PUTBACK;
1855	}
1856
1857	/* exception handling */
1858	if (expect_false (coro_throw))
1859	{
1860	SV *exception = sv_2mortal (coro_throw);
1861
1862	coro_throw = 0;
1863	sv_setsv (ERRSV, exception);
1864	croak (0);
1865	}	2205	}
1866		2206
1867	return NORMAL;	2207	return NORMAL;
1868	}	2208	}
1869		2209
…		…
1991	PerlIOBuf_get_cnt,	2331	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2332	PerlIOBuf_set_ptrcnt,
1993	};	2333	};
1994		2334
1995	/*****************************************************************************/	2335	/*****************************************************************************/
		2336	/* Coro::Semaphore & Coro::Signal */
		2337
		2338	static SV *
		2339	coro_waitarray_new (pTHX_ int count)
		2340	{
		2341	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2342	AV *av = newAV ();
		2343	SV **ary;
		2344
		2345	/* unfortunately, building manually saves memory */
		2346	Newx (ary, 2, SV *);
		2347	AvALLOC (av) = ary;
		2348	/AvARRAY (av) = ary;/
		2349	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2350	AvMAX (av) = 1;
		2351	AvFILLp (av) = 0;
		2352	ary [0] = newSViv (count);
		2353
		2354	return newRV_noinc ((SV *)av);
		2355	}
		2356
1996	/* Coro::Semaphore */	2357	/* semaphore */
1997		2358
1998	static void	2359	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2360	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2361	{
2001	SV *count_sv = AvARRAY (av)[0];	2362	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2374	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2375	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2376	cb = av_shift (av);
2016		2377
2017	if (SvOBJECT (cb))	2378	if (SvOBJECT (cb))
		2379	{
2018	api_ready (aTHX_ cb);	2380	api_ready (aTHX_ cb);
2019	else	2381	--count;
2020	croak ("callbacks not yet supported");	2382	}
		2383	else if (SvTYPE (cb) == SVt_PVCV)
		2384	{
		2385	dSP;
		2386	PUSHMARK (SP);
		2387	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2388	PUTBACK;
		2389	call_sv (cb, G_VOID \| G_DISCARD \| G_EVAL \| G_KEEPERR);
		2390	}
2021		2391
2022	SvREFCNT_dec (cb);	2392	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2393	}
2026	}	2394	}
2027		2395
2028	static void	2396	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2397	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2399	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2400	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2401	}
2034		2402
2035	static int	2403	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2404	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2405	{
2038	AV av = (AV )frame->data;	2406	AV av = (AV )frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2407	SV *count_sv = AvARRAY (av)[0];
2040		2408
		2409	/* if we are about to throw, don't actually acquire the lock, just throw */
		2410	if (CORO_THROW)
		2411	return 0;
2041	if (SvIVX (count_sv) > 0)	2412	else if (SvIVX (count_sv) > 0)
2042	{	2413	{
2043	SvSTATE_current->on_destroy = 0;	2414	SvSTATE_current->on_destroy = 0;
		2415
		2416	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2417	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2418	else
		2419	coro_semaphore_adjust (aTHX_ av, 0);
		2420
2045	return 0;	2421	return 0;
2046	}	2422	}
2047	else	2423	else
2048	{	2424	{
2049	int i;	2425	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2434	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2435	return 1;
2060	}	2436	}
2061	}	2437	}
2062		2438
2063	static void	2439	static int
		2440	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2441	{
		2442	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2443	}
		2444
		2445	static int
		2446	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2447	{
		2448	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2449	}
		2450
		2451	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2452	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2065	{	2453	{
2066	AV av = (AV )SvRV (arg [0]);	2454	AV av = (AV )SvRV (arg [0]);
2067		2455
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2456	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2457	{
2070	frame->data = (void *)av;	2458	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2459	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2460	}
2074	else	2461	else
2075	{	2462	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2463	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2464
2078	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2465	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2079	frame->prepare = prepare_schedule;	2466	frame->prepare = prepare_schedule;
2080		2467
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2468	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2469	/* we arrange for a temporary on_destroy that calls adjust (0) */
2083	assert (!SvSTATE_current->on_destroy);//D
2084	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2470	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2471	}
		2472	}
2086		2473
		2474	static void
		2475	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2476	{
		2477	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2478	frame->check = slf_check_semaphore_down;
2088
2089	}	2479	}
2090		2480
2091	/*****************************************************************************/	2481	static void
2092	/* gensub: simple closure generation utility */	2482	slf_init_semaphore_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2093
2094	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2095
2096	/* create a closure from XS, returns a code reference */
2097	/* the arg can be accessed via GENSUB_ARG from the callback */
2098	/* the callback must use dXSARGS/XSRETURN */
2099	static SV *
2100	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
2101	{	2483	{
2102	CV cv = (CV )newSV (0);	2484	if (items >= 2)
		2485	{
		2486	/* callback form */
		2487	AV av = (AV )SvRV (arg [0]);
		2488	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103		2489
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2490	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2491
2106	CvANON_on (cv);	2492	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2493	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2494
2111	return newRV_noinc ((SV *)cv);	2495	frame->prepare = prepare_nop;
		2496	frame->check = slf_check_nop;
		2497	}
		2498	else
		2499	{
		2500	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2501	frame->check = slf_check_semaphore_wait;
		2502	}
		2503	}
		2504
		2505	/* signal */
		2506
		2507	static void
		2508	coro_signal_wake (pTHX_ AV *av, int count)
		2509	{
		2510	SvIVX (AvARRAY (av)[0]) = 0;
		2511
		2512	/* now signal count waiters */
		2513	while (count > 0 && AvFILLp (av) > 0)
		2514	{
		2515	SV *cb;
		2516
		2517	/* swap first two elements so we can shift a waiter */
		2518	cb = AvARRAY (av)[0];
		2519	AvARRAY (av)[0] = AvARRAY (av)[1];
		2520	AvARRAY (av)[1] = cb;
		2521
		2522	cb = av_shift (av);
		2523
		2524	api_ready (aTHX_ cb);
		2525	sv_setiv (cb, 0); /* signal waiter */
		2526	SvREFCNT_dec (cb);
		2527
		2528	--count;
		2529	}
		2530	}
		2531
		2532	static int
		2533	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2534	{
		2535	/* if we are about to throw, also stop waiting */
		2536	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2537	}
		2538
		2539	static void
		2540	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2541	{
		2542	AV av = (AV )SvRV (arg [0]);
		2543
		2544	if (SvIVX (AvARRAY (av)[0]))
		2545	{
		2546	SvIVX (AvARRAY (av)[0]) = 0;
		2547	frame->prepare = prepare_nop;
		2548	frame->check = slf_check_nop;
		2549	}
		2550	else
		2551	{
		2552	SV waiter = newRV_inc (SvRV (coro_current)); / owned by signal av */
		2553
		2554	av_push (av, waiter);
		2555
		2556	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */
		2557	frame->prepare = prepare_schedule;
		2558	frame->check = slf_check_signal_wait;
		2559	}
2112	}	2560	}
2113		2561
2114	/*****************************************************************************/	2562	/*****************************************************************************/
2115	/* Coro::AIO */	2563	/* Coro::AIO */
2116		2564
…		…
2131	dXSARGS;	2579	dXSARGS;
2132	AV state = (AV )GENSUB_ARG;	2580	AV state = (AV )GENSUB_ARG;
2133	SV *coro = av_pop (state);	2581	SV *coro = av_pop (state);
2134	SV *data_sv = newSV (sizeof (struct io_state));	2582	SV *data_sv = newSV (sizeof (struct io_state));
2135		2583
2136	av_extend (state, items);	2584	av_extend (state, items - 1);
2137		2585
2138	sv_upgrade (data_sv, SVt_PV);	2586	sv_upgrade (data_sv, SVt_PV);
2139	SvCUR_set (data_sv, sizeof (struct io_state));	2587	SvCUR_set (data_sv, sizeof (struct io_state));
2140	SvPOK_only (data_sv);	2588	SvPOK_only (data_sv);
2141		2589
…		…
2165		2613
2166	static int	2614	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2615	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2616	{
2169	AV state = (AV )frame->data;	2617	AV state = (AV )frame->data;
		2618
		2619	/* if we are about to throw, return early */
		2620	/* this does not cancel the aio request, but at least */
		2621	/* it quickly returns */
		2622	if (CORO_THROW)
		2623	return 0;
2170		2624
2171	/* one element that is an RV? repeat! */	2625	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2626	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2627	return 1;
2174		2628
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2799	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2800	}
2347		2801
2348	SV *	2802	SV *
2349	new (char *klass, ...)	2803	new (char *klass, ...)
		2804	ALIAS:
		2805	Coro::new = 1
2350	CODE:	2806	CODE:
2351	{	2807	{
2352	struct coro *coro;	2808	struct coro *coro;
2353	MAGIC *mg;	2809	MAGIC *mg;
2354	HV *hv;	2810	HV *hv;
		2811	CV *cb;
2355	int i;	2812	int i;
		2813
		2814	if (items > 1)
		2815	{
		2816	cb = coro_sv_2cv (aTHX_ ST (1));
		2817
		2818	if (!ix)
		2819	{
		2820	if (CvISXSUB (cb))
		2821	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2822
		2823	if (!CvROOT (cb))
		2824	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2825	}
		2826	}
2356		2827
2357	Newz (0, coro, 1, struct coro);	2828	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2829	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2830	coro->flags = CF_NEW;
2360		2831
…		…
2365	coro->hv = hv = newHV ();	2836	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);	2837	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
2367	mg->mg_flags \|= MGf_DUP;	2838	mg->mg_flags \|= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2839	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2840
		2841	if (items > 1)
		2842	{
2370	av_extend (coro->args, items - 1);	2843	av_extend (coro->args, items - 1 + ix - 1);
		2844
		2845	if (ix)
		2846	{
		2847	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2848	cb = cv_coro_run;
		2849	}
		2850
		2851	coro->startcv = (CV )SvREFCNT_inc_NN ((SV )cb);
		2852
2371	for (i = 1; i < items; i++)	2853	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2854	av_push (coro->args, newSVsv (ST (i)));
		2855	}
2373	}	2856	}
2374	OUTPUT:	2857	OUTPUT:
2375	RETVAL	2858	RETVAL
2376		2859
2377	void	2860	void
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	2989	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	2990	PROTOTYPE: $;$
2508	CODE:	2991	CODE:
2509	{	2992	{
2510	struct coro *current = SvSTATE_current;	2993	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	2994	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	2995	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2996	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	2997	}
2515		2998
2516	void	2999	void
…		…
2575		3058
2576	BOOT:	3059	BOOT:
2577	{	3060	{
2578	int i;	3061	int i;
2579		3062
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3063	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3064	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		3065	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3066	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3067	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585	SvREADONLY_on (coro_current);	3068	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3069	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3070	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3071
		3072	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3073	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3074	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3075	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2586		3076
2587	coro_stash = gv_stashpv ("Coro", TRUE);	3077	coro_stash = gv_stashpv ("Coro", TRUE);
2588		3078
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3079	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3080	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2598		3088
2599	{	3089	{
2600	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3090	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601		3091
2602	coroapi.schedule = api_schedule;	3092	coroapi.schedule = api_schedule;
		3093	coroapi.schedule_to = api_schedule_to;
2603	coroapi.cede = api_cede;	3094	coroapi.cede = api_cede;
2604	coroapi.cede_notself = api_cede_notself;	3095	coroapi.cede_notself = api_cede_notself;
2605	coroapi.ready = api_ready;	3096	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	3097	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	3098	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	3099	coroapi.current = coro_current;
2609		3100
2610	GCoroAPI = &coroapi;	3101	/GCoroAPI = &coroapi;/
2611	sv_setiv (sv, (IV)&coroapi);	3102	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	3103	SvREADONLY_on (sv);
2613	}	3104	}
2614	}	3105	}
		3106
		3107	void
		3108	terminate (...)
		3109	CODE:
		3110	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615		3111
2616	void	3112	void
2617	schedule (...)	3113	schedule (...)
2618	CODE:	3114	CODE:
2619	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3115	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2620		3116
2621	void	3117	void
		3118	schedule_to (...)
		3119	CODE:
		3120	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3121
		3122	void
		3123	cede_to (...)
		3124	CODE:
		3125	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3126
		3127	void
2622	cede (...)	3128	cede (...)
2623	CODE:	3129	CODE:
2624	CORO_EXECUTE_SLF_XS (slf_init_cede);	3130	CORO_EXECUTE_SLF_XS (slf_init_cede);
2625		3131
2626	void	3132	void
2627	cede_notself (...)	3133	cede_notself (...)
2628	CODE:	3134	CODE:
2629	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3135	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3136
		3137	void
		3138	_cancel (Coro::State self)
		3139	CODE:
		3140	coro_state_destroy (aTHX_ self);
		3141	coro_call_on_destroy (aTHX_ self);
2630		3142
2631	void	3143	void
2632	_set_current (SV *current)	3144	_set_current (SV *current)
2633	PROTOTYPE: $	3145	PROTOTYPE: $
2634	CODE:	3146	CODE:
…		…
2679	CODE:	3191	CODE:
2680	RETVAL = coro_nready;	3192	RETVAL = coro_nready;
2681	OUTPUT:	3193	OUTPUT:
2682	RETVAL	3194	RETVAL
2683		3195
2684	# for async_pool speedup
2685	void	3196	void
2686	_pool_1 (SV *cb)	3197	_pool_handler (...)
2687	CODE:	3198	CODE:
2688	{	3199	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2689	HV hv = (HV )SvRV (coro_current);
2690	struct coro coro = SvSTATE_hv ((SV )hv);
2691	AV *defav = GvAV (PL_defgv);
2692	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2693	AV *invoke_av;
2694	int i, len;
2695		3200
2696	if (!invoke)	3201	void
		3202	async_pool (SV *cv, ...)
		3203	PROTOTYPE: &@
		3204	PPCODE:
		3205	{
		3206	HV hv = (HV )av_pop (av_async_pool);
		3207	AV *av = newAV ();
		3208	SV *cb = ST (0);
		3209	int i;
		3210
		3211	av_extend (av, items - 2);
		3212	for (i = 1; i < items; ++i)
		3213	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3214
		3215	if ((SV *)hv == &PL_sv_undef)
2697	{	3216	{
2698	SV *old = PL_diehook;	3217	PUSHMARK (SP);
2699	PL_diehook = 0;	3218	EXTEND (SP, 2);
2700	SvREFCNT_dec (old);	3219	PUSHs (sv_Coro);
2701	croak ("\3async_pool terminate\2\n");	3220	PUSHs ((SV *)cv_pool_handler);
		3221	PUTBACK;
		3222	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3223	SPAGAIN;
		3224
		3225	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702	}	3226	}
2703		3227
2704	SvREFCNT_dec (coro->saved_deffh);
2705	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2706
2707	hv_store (hv, "desc", sizeof ("desc") - 1,
2708	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2709
2710	invoke_av = (AV *)SvRV (invoke);
2711	len = av_len (invoke_av);
2712
2713	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2714
2715	if (len > 0)
2716	{	3228	{
2717	av_fill (defav, len - 1);	3229	struct coro *coro = SvSTATE_hv (hv);
2718	for (i = 0; i < len; ++i)	3230
2719	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3231	assert (!coro->invoke_cb);
		3232	assert (!coro->invoke_av);
		3233	coro->invoke_cb = SvREFCNT_inc (cb);
		3234	coro->invoke_av = av;
2720	}	3235	}
		3236
		3237	api_ready (aTHX_ (SV *)hv);
		3238
		3239	if (GIMME_V != G_VOID)
		3240	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3241	else
		3242	SvREFCNT_dec (hv);
2721	}	3243	}
		3244
		3245	SV *
		3246	rouse_cb ()
		3247	PROTOTYPE:
		3248	CODE:
		3249	RETVAL = coro_new_rouse_cb (aTHX);
		3250	OUTPUT:
		3251	RETVAL
2722		3252
2723	void	3253	void
2724	_pool_2 (SV *cb)	3254	rouse_wait (...)
		3255	PROTOTYPE: ;$
2725	CODE:	3256	PPCODE:
2726	{	3257	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2727	HV hv = (HV )SvRV (coro_current);
2728	struct coro coro = SvSTATE_hv ((SV )hv);
2729
2730	sv_setsv (cb, &PL_sv_undef);
2731
2732	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
2733	coro->saved_deffh = 0;
2734
2735	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2736	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2737	{
2738	SV *old = PL_diehook;
2739	PL_diehook = 0;
2740	SvREFCNT_dec (old);
2741	croak ("\3async_pool terminate\2\n");
2742	}
2743
2744	av_clear (GvAV (PL_defgv));
2745	hv_store (hv, "desc", sizeof ("desc") - 1,
2746	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2747
2748	coro->prio = 0;
2749
2750	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2751	api_trace (aTHX_ coro_current, 0);
2752
2753	av_push (av_async_pool, newSVsv (coro_current));
2754	}
2755		3258
2756		3259
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3260	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3261
2759	BOOT:	3262	BOOT:
…		…
2761		3264
2762		3265
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3266	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3267
2765	SV *	3268	SV *
2766	new (SV klass, SV count_ = 0)	3269	new (SV klass, SV count = 0)
2767	CODE:	3270	CODE:
2768	{	3271	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3272	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3273	GvSTASH (CvGV (cv))
2771	SV **ary;	3274	);
		3275	OUTPUT:
		3276	RETVAL
2772		3277
2773	/* unfortunately, building manually saves memory */	3278	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3279	SV *
2775	AvALLOC (av) = ary;	3280	_alloc (int count)
2776	AvARRAY (av) = ary;	3281	CODE:
2777	AvMAX (av) = 1;	3282	RETVAL = coro_waitarray_new (aTHX_ count);
2778	AvFILLp (av) = 0;
2779	ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2780
2781	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2782	}
2783	OUTPUT:	3283	OUTPUT:
2784	RETVAL	3284	RETVAL
2785		3285
2786	SV *	3286	SV *
2787	count (SV *self)	3287	count (SV *self)
…		…
2796	adjust = 1	3296	adjust = 1
2797	CODE:	3297	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3298	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3299
2800	void	3300	void
2801	down (SV *self)	3301	down (...)
2802	CODE:	3302	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3303	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3304
		3305	void
		3306	wait (...)
		3307	CODE:
		3308	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3309
2805	void	3310	void
2806	try (SV *self)	3311	try (SV *self)
2807	PPCODE:	3312	PPCODE:
2808	{	3313	{
…		…
2820	XSRETURN_NO;	3325	XSRETURN_NO;
2821	}	3326	}
2822		3327
2823	void	3328	void
2824	waiters (SV *self)	3329	waiters (SV *self)
2825	CODE:	3330	PPCODE:
2826	{	3331	{
2827	AV av = (AV )SvRV (self);	3332	AV av = (AV )SvRV (self);
		3333	int wcount = AvFILLp (av) + 1 - 1;
2828		3334
2829	if (GIMME_V == G_SCALAR)	3335	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3336	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3337	else
2832	{	3338	{
2833	int i;	3339	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3340	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3341	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3342	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3343	}
2838	}	3344	}
		3345
		3346	MODULE = Coro::State PACKAGE = Coro::Signal
		3347
		3348	SV *
		3349	new (SV *klass)
		3350	CODE:
		3351	RETVAL = sv_bless (
		3352	coro_waitarray_new (aTHX_ 0),
		3353	GvSTASH (CvGV (cv))
		3354	);
		3355	OUTPUT:
		3356	RETVAL
		3357
		3358	void
		3359	wait (...)
		3360	CODE:
		3361	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3362
		3363	void
		3364	broadcast (SV *self)
		3365	CODE:
		3366	{
		3367	AV av = (AV )SvRV (self);
		3368	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3369	}
		3370
		3371	void
		3372	send (SV *self)
		3373	CODE:
		3374	{
		3375	AV av = (AV )SvRV (self);
		3376
		3377	if (AvFILLp (av))
		3378	coro_signal_wake (aTHX_ av, 1);
		3379	else
		3380	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3381	}
		3382
		3383	IV
		3384	awaited (SV *self)
		3385	CODE:
		3386	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3387	OUTPUT:
		3388	RETVAL
2839		3389
2840		3390
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3391	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3392
2843	BOOT:	3393	BOOT:
…		…
2871		3421
2872	void	3422	void
2873	_register (char target, char proto, SV *req)	3423	_register (char target, char proto, SV *req)
2874	CODE:	3424	CODE:
2875	{	3425	{
2876	HV *st;	3426	CV *req_cv = coro_sv_2cv (aTHX_ req);
2877	GV *gvp;
2878	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2879	/* newXSproto doesn't return the CV on 5.8 */	3427	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3428	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3429	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3430	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3431	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.291 by root, Tue Nov 18 05:55:04 2008 UTC vs. Revision 1.318 by root, Thu Nov 20 07:02:43 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.291 by root, Tue Nov 18 05:55:04 2008 UTC vs.
Revision 1.318 by root, Thu Nov 20 07:02:43 2008 UTC