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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.290 by root, Tue Nov 18 05:51:38 2008 UTC vs.
Revision 1.316 by root, Thu Nov 20 06:01:40 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
…		…
173	static HV hv_sig; / %SIG */	179	static HV hv_sig; / %SIG */
174		180
175	/* async_pool helper stuff */	181	/* async_pool helper stuff */
176	static SV *sv_pool_rss;	182	static SV *sv_pool_rss;
177	static SV *sv_pool_size;	183	static SV *sv_pool_size;
		184	static SV *sv_async_pool_idle;
178	static AV *av_async_pool;	185	static AV *av_async_pool;
		186	static SV *sv_Coro;
		187	static CV *cv_pool_handler;
		188	static CV *cv_coro_state_new;
179		189
180	/* Coro::AnyEvent */	190	/* Coro::AnyEvent */
181	static SV *sv_activity;	191	static SV *sv_activity;
182		192
183	static struct coro_cctx *cctx_first;	193	static struct coro_cctx *cctx_first;
…		…
243	/* state data */	253	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	254	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	255	AV *mainstack;
246	perl_slots slot; / basically the saved sp */	256	perl_slots slot; / basically the saved sp */
247		257
		258	CV startcv; / the CV to execute */
248	AV args; / data associated with this coroutine (initial args) */	259	AV args; / data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	260	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	261	int flags; /* CF_ flags */
251	HV hv; / the perl hash associated with this coro, if any */	262	HV hv; / the perl hash associated with this coro, if any */
252	void (on_destroy)(pTHX_ struct coro coro);	263	void (on_destroy)(pTHX_ struct coro coro);
253		264
254	/* statistics */	265	/* statistics */
255	int usecount; /* number of transfers to this coro */	266	int usecount; /* number of transfers to this coro */
256		267
257	/* coro process data */	268	/* coro process data */
258	int prio;	269	int prio;
259	SV throw; / exception to be thrown */	270	SV except; / exception to be thrown */
		271	SV *rouse_cb;
260		272
261	/* async_pool */	273	/* async_pool */
262	SV *saved_deffh;	274	SV *saved_deffh;
		275	SV *invoke_cb;
		276	AV *invoke_av;
263		277
264	/* linked list */	278	/* linked list */
265	struct coro next, prev;	279	struct coro next, prev;
266	};	280	};
267		281
…		…
270		284
271	/* the following variables are effectively part of the perl context */	285	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	286	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	287	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	288	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		289
277	/ Coro ******************************************************************/	290	/ Coro ******************************************************************/
278		291
279	#define PRIO_MAX 3	292	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	293	#define PRIO_HIGH 1
…		…
285		298
286	/* for Coro.pm */	299	/* for Coro.pm */
287	static SV *coro_current;	300	static SV *coro_current;
288	static SV *coro_readyhook;	301	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	302	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		303	static CV cv_coro_run, cv_coro_terminate;
290	static struct coro *coro_first;	304	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	305	#define coro_nready coroapi.nready
292		306
293	/ lowlevel stuff ********************************************************/	307	/ lowlevel stuff ********************************************************/
294		308
…		…
318	#if PERL_VERSION_ATLEAST (5,10,0)	332	#if PERL_VERSION_ATLEAST (5,10,0)
319	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	333	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
320	get_hv (name, create);	334	get_hv (name, create);
321	#endif	335	#endif
322	return get_hv (name, create);	336	return get_hv (name, create);
		337	}
		338
		339	/* may croak */
		340	INLINE CV *
		341	coro_sv_2cv (pTHX_ SV *sv)
		342	{
		343	HV *st;
		344	GV *gvp;
		345	return sv_2cv (sv, &st, &gvp, 0);
323	}	346	}
324		347
325	static AV *	348	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	349	coro_clone_padlist (pTHX_ CV *cv)
327	{	350	{
…		…
446	else	469	else
447	{	470	{
448	#if CORO_PREFER_PERL_FUNCTIONS	471	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	472	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	473	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	474	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	475	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	476	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	477	SvREFCNT_dec (cp);
455	#else	478	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	479	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
509		532
510	PUTBACK;	533	PUTBACK;
511	}	534	}
512		535
513	slf_frame = c->slf_frame;	536	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	537	CORO_THROW = c->except;
515	}	538	}
516		539
517	static void	540	static void
518	save_perl (pTHX_ Coro__State c)	541	save_perl (pTHX_ Coro__State c)
519	{	542	{
520	c->throw = coro_throw;	543	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	544	c->slf_frame = slf_frame;
522		545
523	{	546	{
524	dSP;	547	dSP;
525	I32 cxix = cxstack_ix;	548	I32 cxix = cxstack_ix;
…		…
600	* of perl.c:init_stacks, except that it uses less memory	623	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	624	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	625	* not usually need a lot of stackspace.
603	*/	626	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	627	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	628	# define coro_init_stacks(thx) init_stacks ()
606	#else	629	#else
607	static void	630	static void
608	coro_init_stacks (pTHX)	631	coro_init_stacks (pTHX)
609	{	632	{
610	PL_curstackinfo = new_stackinfo(32, 8);	633	PL_curstackinfo = new_stackinfo(32, 8);
…		…
673	#if !PERL_VERSION_ATLEAST (5,10,0)	696	#if !PERL_VERSION_ATLEAST (5,10,0)
674	Safefree (PL_retstack);	697	Safefree (PL_retstack);
675	#endif	698	#endif
676	}	699	}
677		700
		701	#define CORO_RSS \
		702	rss += sizeof (SYM (curstackinfo)); \
		703	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		704	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		705	rss += SYM (tmps_max) * sizeof (SV *); \
		706	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		707	rss += SYM (scopestack_max) * sizeof (I32); \
		708	rss += SYM (savestack_max) * sizeof (ANY);
		709
678	static size_t	710	static size_t
679	coro_rss (pTHX_ struct coro *coro)	711	coro_rss (pTHX_ struct coro *coro)
680	{	712	{
681	size_t rss = sizeof (*coro);	713	size_t rss = sizeof (*coro);
682		714
683	if (coro->mainstack)	715	if (coro->mainstack)
684	{	716	{
685	perl_slots tmp_slot;
686	perl_slots *slot;
687
688	if (coro->flags & CF_RUNNING)	717	if (coro->flags & CF_RUNNING)
689	{	718	{
690	slot = &tmp_slot;	719	#define SYM(sym) PL_ ## sym
691		720	CORO_RSS;
692	#define VAR(name,type) slot->name = PL_ ## name;
693	# include "state.h"
694	#undef VAR	721	#undef SYM
695	}	722	}
696	else	723	else
697	slot = coro->slot;
698
699	if (slot)
700	{	724	{
701	rss += sizeof (slot->curstackinfo);	725	#define SYM(sym) coro->slot->sym
702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	726	CORO_RSS;
703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	727	#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	}	728	}
713	}	729	}
714		730
715	return rss;	731	return rss;
716	}	732	}
…		…
857	{	873	{
858	dSP;	874	dSP;
859	UNOP myop;	875	UNOP myop;
860		876
861	Zero (&myop, 1, UNOP);	877	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	878	myop.op_next = Nullop;
		879	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	880	myop.op_flags = OPf_WANT_VOID;
864		881
865	PUSHMARK (SP);	882	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	883	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	884	PUTBACK;
868	PL_op = (OP *)&myop;	885	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	886	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	887	}
872		888
873	/* this newly created coroutine might be run on an existing cctx which most	889	/* this newly created coroutine might be run on an existing cctx which most
874	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	890	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	891	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	892	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	893	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		894
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	895	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		896	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	897	coro_setup_op.op_type = OP_CUSTOM;
881	coro_setup_op.op_ppaddr = pp_slf;	898	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	899	/* no flags etc. required, as an init function won't be called */
883		900
884	PL_op = (OP *)&coro_setup_op;	901	PL_op = (OP *)&coro_setup_op;
885		902
886	/* copy throw, in case it was set before coro_setup */	903	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	904	CORO_THROW = coro->except;
888	}	905	}
889		906
890	static void	907	static void
891	coro_destruct (pTHX_ struct coro *coro)	908	coro_destruct (pTHX_ struct coro *coro)
892	{	909	{
…		…
916		933
917	SvREFCNT_dec (PL_diehook);	934	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	935	SvREFCNT_dec (PL_warnhook);
919		936
920	SvREFCNT_dec (coro->saved_deffh);	937	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	938	SvREFCNT_dec (coro->rouse_cb);
		939	SvREFCNT_dec (coro->invoke_cb);
		940	SvREFCNT_dec (coro->invoke_av);
922		941
923	coro_destruct_stacks (aTHX);	942	coro_destruct_stacks (aTHX);
924	}	943	}
925		944
926	INLINE void	945	INLINE void
…		…
1013	SAVETMPS;	1032	SAVETMPS;
1014	EXTEND (SP, 3);	1033	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1034	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1035	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1036	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1037	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1038	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1039	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1040	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1022	SPAGAIN;	1041	SPAGAIN;
1023	FREETMPS;	1042	FREETMPS;
…		…
1070	static int	1089	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1090	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1091	{
1073	*frame = cctx_ssl_frame;	1092	*frame = cctx_ssl_frame;
1074		1093
1075	return 0;	1094	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1095	}
1077		1096
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1097	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1098	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1099	cctx_prepare (pTHX_ coro_cctx *cctx)
1081	{	1100	{
1082	PL_top_env = &PL_start_env;	1101	PL_top_env = &PL_start_env;
1083		1102
1084	if (cctx->flags & CC_TRACE)	1103	if (cctx->flags & CC_TRACE)
1085	PL_runops = runops_trace;	1104	PL_runops = runops_trace;
1086		1105
1087	/* we already must be in an SLF call, there is no other valid way	1106	/* we already must be executing an SLF op, there is no other valid way
1088	* that can lead to creation of a new cctx */	1107	* that can lead to creation of a new cctx */
1089	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1108	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1109	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1110
		1111	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1092	cctx_ssl_cctx = cctx;	1112	cctx_ssl_cctx = cctx;
1093	cctx_ssl_frame = slf_frame;	1113	cctx_ssl_frame = slf_frame;
1094		1114
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1115	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1116	slf_frame.check = slf_check_set_stacklevel;
…		…
1128	transfer_tail (aTHX);	1148	transfer_tail (aTHX);
1129		1149
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1150	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1151	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1152	perl_run (PL_curinterp);
		1153	/*
		1154	* Unfortunately, there is no way to get at the return values of the
		1155	* coro body here, as perl_run destroys these
		1156	*/
1133		1157
1134	/*	1158	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1159	* If perl-run returns we assume exit() was being called or the coro
1136	* fell off the end, which seems to be the only valid (non-bug)	1160	* fell off the end, which seems to be the only valid (non-bug)
1137	* reason for perl_run to return. We try to exit by jumping to the	1161	* reason for perl_run to return. We try to exit by jumping to the
…		…
1317	dSTACKLEVEL;	1341	dSTACKLEVEL;
1318		1342
1319	/* sometimes transfer is only called to set idle_sp */	1343	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1344	if (expect_false (!next))
1321	{	1345	{
1322	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1346	((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 */	1347	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1324	}	1348	}
1325	else if (expect_true (prev != next))	1349	else if (expect_true (prev != next))
1326	{	1350	{
1327	coro_cctx *prev__cctx;	1351	coro_cctx *prev__cctx;
…		…
1352		1376
1353	prev__cctx = prev->cctx;	1377	prev__cctx = prev->cctx;
1354		1378
1355	/* possibly untie and reuse the cctx */	1379	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1380	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1381	prev__cctx->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1382	&& !(prev__cctx->flags & CC_TRACE)
1359	&& !force_cctx	1383	&& !force_cctx
1360	))	1384	))
1361	{	1385	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1386	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
…		…
1429		1453
1430	coro->slot = 0;	1454	coro->slot = 0;
1431	}	1455	}
1432		1456
1433	cctx_destroy (coro->cctx);	1457	cctx_destroy (coro->cctx);
		1458	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1459	SvREFCNT_dec (coro->args);
		1460	SvREFCNT_dec (CORO_THROW);
1435		1461
1436	if (coro->next) coro->next->prev = coro->prev;	1462	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1463	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1464	if (coro == coro_first) coro_first = coro->next;
1439		1465
…		…
1493		1519
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1520	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1521	TRANSFER (ta, 1);
1496	}	1522	}
1497		1523
		1524	/*****************************************************************************/
		1525	/* gensub: simple closure generation utility */
		1526
		1527	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1528
		1529	/* create a closure from XS, returns a code reference */
		1530	/* the arg can be accessed via GENSUB_ARG from the callback */
		1531	/* the callback must use dXSARGS/XSRETURN */
		1532	static SV *
		1533	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
		1534	{
		1535	CV cv = (CV )newSV (0);
		1536
		1537	sv_upgrade ((SV *)cv, SVt_PVCV);
		1538
		1539	CvANON_on (cv);
		1540	CvISXSUB_on (cv);
		1541	CvXSUB (cv) = xsub;
		1542	GENSUB_ARG = arg;
		1543
		1544	return newRV_noinc ((SV *)cv);
		1545	}
		1546
1498	/ Coro ******************************************************************/	1547	/ Coro ******************************************************************/
1499		1548
1500	INLINE void	1549	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1550	coro_enq (pTHX_ struct coro *coro)
1502	{	1551	{
…		…
1563	api_is_ready (pTHX_ SV *coro_sv)	1612	api_is_ready (pTHX_ SV *coro_sv)
1564	{	1613	{
1565	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1614	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566	}	1615	}
1567		1616
		1617	/* expects to own a reference to next->hv */
1568	INLINE void	1618	INLINE void
		1619	prepare_cede_to (pTHX_ struct coro_transfer_args ta, struct coro next)
		1620	{
		1621	SV *prev_sv = SvRV (coro_current);
		1622
		1623	ta->prev = SvSTATE_hv (prev_sv);
		1624	ta->next = next;
		1625
		1626	TRANSFER_CHECK (*ta);
		1627
		1628	SvRV_set (coro_current, next->hv);
		1629
		1630	free_coro_mortal (aTHX);
		1631	coro_mortal = prev_sv;
		1632	}
		1633
		1634	static void
1569	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1635	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1570	{	1636	{
1571	SV prev_sv, next_sv;
1572
1573	for (;;)	1637	for (;;)
1574	{	1638	{
1575	next_sv = coro_deq (aTHX);	1639	SV *next_sv = coro_deq (aTHX);
1576		1640
1577	/* nothing to schedule: call the idle handler */
1578	if (expect_false (!next_sv))	1641	if (expect_false (!next_sv))
1579	{	1642	{
		1643	/* nothing to schedule: call the idle handler */
1580	dSP;	1644	dSP;
1581		1645
1582	ENTER;	1646	ENTER;
1583	SAVETMPS;	1647	SAVETMPS;
1584		1648
…		…
1586	PUTBACK;	1650	PUTBACK;
1587	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);	1651	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);
1588		1652
1589	FREETMPS;	1653	FREETMPS;
1590	LEAVE;	1654	LEAVE;
1591	continue;
1592	}	1655	}
1593		1656	else
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	{	1657	{
1599	SvREFCNT_dec (next_sv);	1658	struct coro *next = SvSTATE_hv (next_sv);
		1659
		1660	/* cannot transfer to destroyed coros, skip and look for next */
		1661	if (expect_false (next->flags & CF_DESTROYED))
1600	/* coro_nready has already been taken care of by destroy */	1662	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
1601	continue;	1663	else
		1664	{
		1665	next->flags &= ~CF_READY;
		1666	--coro_nready;
		1667
		1668	return prepare_cede_to (aTHX_ ta, next);
		1669	}
1602	}	1670	}
1603
1604	--coro_nready;
1605	break;
1606	}	1671	}
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	}	1672	}
1619		1673
1620	INLINE void	1674	INLINE void
1621	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1675	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622	{	1676	{
…		…
1699	if (coro->flags & CF_RUNNING)	1753	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1754	PL_runops = RUNOPS_DEFAULT;
1701	else	1755	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1756	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1757	}
		1758	}
		1759
		1760	/*****************************************************************************/
		1761	/* async pool handler */
		1762
		1763	static int
		1764	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1765	{
		1766	HV hv = (HV )SvRV (coro_current);
		1767	struct coro coro = (struct coro )frame->data;
		1768
		1769	if (!coro->invoke_cb)
		1770	return 1; /* loop till we have invoke */
		1771	else
		1772	{
		1773	hv_store (hv, "desc", sizeof ("desc") - 1,
		1774	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1775
		1776	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1777
		1778	{
		1779	dSP;
		1780	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1781	PUTBACK;
		1782	}
		1783
		1784	SvREFCNT_dec (GvAV (PL_defgv));
		1785	GvAV (PL_defgv) = coro->invoke_av;
		1786	coro->invoke_av = 0;
		1787
		1788	return 0;
		1789	}
		1790	}
		1791
		1792	static void
		1793	slf_init_pool_handler (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1794	{
		1795	HV hv = (HV )SvRV (coro_current);
		1796	struct coro coro = SvSTATE_hv ((SV )hv);
		1797
		1798	if (expect_true (coro->saved_deffh))
		1799	{
		1800	/* subsequent iteration */
		1801	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1802	coro->saved_deffh = 0;
		1803
		1804	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1805	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1806	{
		1807	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1808	coro->invoke_av = newAV ();
		1809
		1810	frame->prepare = prepare_nop;
		1811	}
		1812	else
		1813	{
		1814	av_clear (GvAV (PL_defgv));
		1815	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1816
		1817	coro->prio = 0;
		1818
		1819	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1820	api_trace (aTHX_ coro_current, 0);
		1821
		1822	frame->prepare = prepare_schedule;
		1823	av_push (av_async_pool, SvREFCNT_inc (hv));
		1824	}
		1825	}
		1826	else
		1827	{
		1828	/* first iteration, simply fall through */
		1829	frame->prepare = prepare_nop;
		1830	}
		1831
		1832	frame->check = slf_check_pool_handler;
		1833	frame->data = (void *)coro;
		1834	}
		1835
		1836	/*****************************************************************************/
		1837	/* rouse callback */
		1838
		1839	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1840
		1841	static void
		1842	coro_rouse_callback (pTHX_ CV *cv)
		1843	{
		1844	dXSARGS;
		1845	SV data = (SV )GENSUB_ARG;
		1846
		1847	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1848	{
		1849	/* first call, set args */
		1850	AV *av = newAV ();
		1851	SV *coro = SvRV (data);
		1852
		1853	SvRV_set (data, (SV *)av);
		1854	api_ready (aTHX_ coro);
		1855	SvREFCNT_dec (coro);
		1856
		1857	/* better take a full copy of the arguments */
		1858	while (items--)
		1859	av_store (av, items, newSVsv (ST (items)));
		1860	}
		1861
		1862	XSRETURN_EMPTY;
		1863	}
		1864
		1865	static int
		1866	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1867	{
		1868	SV data = (SV )frame->data;
		1869
		1870	if (CORO_THROW)
		1871	return 0;
		1872
		1873	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1874	return 1;
		1875
		1876	/* now push all results on the stack */
		1877	{
		1878	dSP;
		1879	AV av = (AV )SvRV (data);
		1880	int i;
		1881
		1882	EXTEND (SP, AvFILLp (av) + 1);
		1883	for (i = 0; i <= AvFILLp (av); ++i)
		1884	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1885
		1886	/* we have stolen the elements, so ste length to zero and free */
		1887	AvFILLp (av) = -1;
		1888	av_undef (av);
		1889
		1890	PUTBACK;
		1891	}
		1892
		1893	return 0;
		1894	}
		1895
		1896	static void
		1897	slf_init_rouse_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1898	{
		1899	SV *cb;
		1900
		1901	if (items)
		1902	cb = arg [0];
		1903	else
		1904	{
		1905	struct coro *coro = SvSTATE_current;
		1906
		1907	if (!coro->rouse_cb)
		1908	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1909
		1910	cb = sv_2mortal (coro->rouse_cb);
		1911	coro->rouse_cb = 0;
		1912	}
		1913
		1914	if (!SvROK (cb)
		1915	\|\| SvTYPE (SvRV (cb)) != SVt_PVCV
		1916	\|\| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1917	croak ("Coro::rouse_wait called with illegal callback argument,");
		1918
		1919	{
		1920	CV cv = (CV )SvRV (cb); /* for GENSUB_ARG */
		1921	SV data = (SV )GENSUB_ARG;
		1922
		1923	frame->data = (void *)data;
		1924	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		1925	frame->check = slf_check_rouse_wait;
		1926	}
		1927	}
		1928
		1929	static SV *
		1930	coro_new_rouse_cb (pTHX)
		1931	{
		1932	HV hv = (HV )SvRV (coro_current);
		1933	struct coro *coro = SvSTATE_hv (hv);
		1934	SV data = newRV_inc ((SV )hv);
		1935	SV cb = gensub (aTHX_ coro_rouse_callback, (void )data);
		1936
		1937	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		1938	SvREFCNT_dec (data); /* magicext increases the refcount */
		1939
		1940	SvREFCNT_dec (coro->rouse_cb);
		1941	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		1942
		1943	return cb;
1704	}	1944	}
1705		1945
1706	/*****************************************************************************/	1946	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	1947	/* schedule-like-function opcode (SLF) */
1708		1948
…		…
1835	}	2075	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	2076	while (slf_frame.check (aTHX_ &slf_frame));
1837		2077
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2078	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		2079
		2080	/* exception handling */
		2081	if (expect_false (CORO_THROW))
		2082	{
		2083	SV *exception = sv_2mortal (CORO_THROW);
		2084
		2085	CORO_THROW = 0;
		2086	sv_setsv (ERRSV, exception);
		2087	croak (0);
		2088	}
		2089
1840	/* return value handling - mostly like entersub */	2090	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2091	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2092	if (GIMME_V == G_SCALAR)
1843	{	2093	{
1844	dSP;	2094	dSP;
…		…
1850	bot [1] = *sp;	2100	bot [1] = *sp;
1851		2101
1852	SP = bot + 1;	2102	SP = bot + 1;
1853		2103
1854	PUTBACK;	2104	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	}	2105	}
1866		2106
1867	return NORMAL;	2107	return NORMAL;
1868	}	2108	}
1869		2109
…		…
1991	PerlIOBuf_get_cnt,	2231	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2232	PerlIOBuf_set_ptrcnt,
1993	};	2233	};
1994		2234
1995	/*****************************************************************************/	2235	/*****************************************************************************/
		2236	/* Coro::Semaphore & Coro::Signal */
		2237
		2238	static SV *
		2239	coro_waitarray_new (pTHX_ int count)
		2240	{
		2241	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2242	AV *av = newAV ();
		2243	SV **ary;
		2244
		2245	/* unfortunately, building manually saves memory */
		2246	Newx (ary, 2, SV *);
		2247	AvALLOC (av) = ary;
		2248	/AvARRAY (av) = ary;/
		2249	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2250	AvMAX (av) = 1;
		2251	AvFILLp (av) = 0;
		2252	ary [0] = newSViv (count);
		2253
		2254	return newRV_noinc ((SV *)av);
		2255	}
		2256
1996	/* Coro::Semaphore */	2257	/* semaphore */
1997		2258
1998	static void	2259	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2260	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2261	{
2001	SV *count_sv = AvARRAY (av)[0];	2262	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2274	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2275	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2276	cb = av_shift (av);
2016		2277
2017	if (SvOBJECT (cb))	2278	if (SvOBJECT (cb))
		2279	{
2018	api_ready (aTHX_ cb);	2280	api_ready (aTHX_ cb);
2019	else	2281	--count;
2020	croak ("callbacks not yet supported");	2282	}
		2283	else if (SvTYPE (cb) == SVt_PVCV)
		2284	{
		2285	dSP;
		2286	PUSHMARK (SP);
		2287	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2288	PUTBACK;
		2289	call_sv (cb, G_VOID \| G_DISCARD \| G_EVAL \| G_KEEPERR);
		2290	}
2021		2291
2022	SvREFCNT_dec (cb);	2292	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2293	}
2026	}	2294	}
2027		2295
2028	static void	2296	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2297	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2299	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2300	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2301	}
2034		2302
2035	static int	2303	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2304	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2305	{
2038	AV av = (AV )frame->data;	2306	AV av = (AV )frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2307	SV *count_sv = AvARRAY (av)[0];
2040		2308
		2309	/* if we are about to throw, don't actually acquire the lock, just throw */
		2310	if (CORO_THROW)
		2311	return 0;
2041	if (SvIVX (count_sv) > 0)	2312	else if (SvIVX (count_sv) > 0)
2042	{	2313	{
2043	SvSTATE_current->on_destroy = 0;	2314	SvSTATE_current->on_destroy = 0;
		2315
		2316	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2317	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2318	else
		2319	coro_semaphore_adjust (aTHX_ av, 0);
		2320
2045	return 0;	2321	return 0;
2046	}	2322	}
2047	else	2323	else
2048	{	2324	{
2049	int i;	2325	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2334	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2335	return 1;
2060	}	2336	}
2061	}	2337	}
2062		2338
2063	static void	2339	static int
		2340	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2341	{
		2342	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2343	}
		2344
		2345	static int
		2346	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2347	{
		2348	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2349	}
		2350
		2351	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2352	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2065	{	2353	{
2066	AV av = (AV )SvRV (arg [0]);	2354	AV av = (AV )SvRV (arg [0]);
2067		2355
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2356	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2357	{
2070	frame->data = (void *)av;	2358	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2359	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2360	}
2074	else	2361	else
2075	{	2362	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2363	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2364
2078	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2365	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2079	frame->prepare = prepare_schedule;	2366	frame->prepare = prepare_schedule;
2080		2367
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2368	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2369	/* 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;	2370	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2371	}
		2372	}
2086		2373
		2374	static void
		2375	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2376	{
		2377	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2378	frame->check = slf_check_semaphore_down;
2088
2089	}	2379	}
2090		2380
2091	/*****************************************************************************/	2381	static void
2092	/* gensub: simple closure generation utility */	2382	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	{	2383	{
2102	CV cv = (CV )newSV (0);	2384	if (items >= 2)
		2385	{
		2386	/* callback form */
		2387	AV av = (AV )SvRV (arg [0]);
		2388	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103		2389
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2390	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2391
2106	CvANON_on (cv);	2392	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2393	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2394
2111	return newRV_noinc ((SV *)cv);	2395	frame->prepare = prepare_nop;
		2396	frame->check = slf_check_nop;
		2397	}
		2398	else
		2399	{
		2400	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2401	frame->check = slf_check_semaphore_wait;
		2402	}
		2403	}
		2404
		2405	/* signal */
		2406
		2407	static void
		2408	coro_signal_wake (pTHX_ AV *av, int count)
		2409	{
		2410	SvIVX (AvARRAY (av)[0]) = 0;
		2411
		2412	/* now signal count waiters */
		2413	while (count > 0 && AvFILLp (av) > 0)
		2414	{
		2415	SV *cb;
		2416
		2417	/* swap first two elements so we can shift a waiter */
		2418	cb = AvARRAY (av)[0];
		2419	AvARRAY (av)[0] = AvARRAY (av)[1];
		2420	AvARRAY (av)[1] = cb;
		2421
		2422	cb = av_shift (av);
		2423
		2424	api_ready (aTHX_ cb);
		2425	sv_setiv (cb, 0); /* signal waiter */
		2426	SvREFCNT_dec (cb);
		2427
		2428	--count;
		2429	}
		2430	}
		2431
		2432	static int
		2433	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2434	{
		2435	/* if we are about to throw, also stop waiting */
		2436	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2437	}
		2438
		2439	static void
		2440	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2441	{
		2442	AV av = (AV )SvRV (arg [0]);
		2443
		2444	if (SvIVX (AvARRAY (av)[0]))
		2445	{
		2446	SvIVX (AvARRAY (av)[0]) = 0;
		2447	frame->prepare = prepare_nop;
		2448	frame->check = slf_check_nop;
		2449	}
		2450	else
		2451	{
		2452	SV waiter = newRV_inc (SvRV (coro_current)); / owned by signal av */
		2453
		2454	av_push (av, waiter);
		2455
		2456	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */
		2457	frame->prepare = prepare_schedule;
		2458	frame->check = slf_check_signal_wait;
		2459	}
2112	}	2460	}
2113		2461
2114	/*****************************************************************************/	2462	/*****************************************************************************/
2115	/* Coro::AIO */	2463	/* Coro::AIO */
2116		2464
…		…
2131	dXSARGS;	2479	dXSARGS;
2132	AV state = (AV )GENSUB_ARG;	2480	AV state = (AV )GENSUB_ARG;
2133	SV *coro = av_pop (state);	2481	SV *coro = av_pop (state);
2134	SV *data_sv = newSV (sizeof (struct io_state));	2482	SV *data_sv = newSV (sizeof (struct io_state));
2135		2483
2136	av_extend (state, items);	2484	av_extend (state, items - 1);
2137		2485
2138	sv_upgrade (data_sv, SVt_PV);	2486	sv_upgrade (data_sv, SVt_PV);
2139	SvCUR_set (data_sv, sizeof (struct io_state));	2487	SvCUR_set (data_sv, sizeof (struct io_state));
2140	SvPOK_only (data_sv);	2488	SvPOK_only (data_sv);
2141		2489
…		…
2165		2513
2166	static int	2514	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2515	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2516	{
2169	AV state = (AV )frame->data;	2517	AV state = (AV )frame->data;
		2518
		2519	/* if we are about to throw, return early */
		2520	/* this does not cancel the aio request, but at least */
		2521	/* it quickly returns */
		2522	if (CORO_THROW)
		2523	return 0;
2170		2524
2171	/* one element that is an RV? repeat! */	2525	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2526	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2527	return 1;
2174		2528
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2699	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2700	}
2347		2701
2348	SV *	2702	SV *
2349	new (char *klass, ...)	2703	new (char *klass, ...)
		2704	ALIAS:
		2705	Coro::new = 1
2350	CODE:	2706	CODE:
2351	{	2707	{
2352	struct coro *coro;	2708	struct coro *coro;
2353	MAGIC *mg;	2709	MAGIC *mg;
2354	HV *hv;	2710	HV *hv;
		2711	CV *cb;
2355	int i;	2712	int i;
		2713
		2714	if (items > 1)
		2715	{
		2716	cb = coro_sv_2cv (aTHX_ ST (1));
		2717
		2718	if (!ix)
		2719	{
		2720	if (CvISXSUB (cb))
		2721	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2722
		2723	if (!CvROOT (cb))
		2724	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2725	}
		2726	}
2356		2727
2357	Newz (0, coro, 1, struct coro);	2728	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2729	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2730	coro->flags = CF_NEW;
2360		2731
…		…
2365	coro->hv = hv = newHV ();	2736	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);	2737	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
2367	mg->mg_flags \|= MGf_DUP;	2738	mg->mg_flags \|= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2739	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2740
		2741	if (items > 1)
		2742	{
2370	av_extend (coro->args, items - 1);	2743	av_extend (coro->args, items - 1 + ix - 1);
		2744
		2745	if (ix)
		2746	{
		2747	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2748	cb = cv_coro_run;
		2749	}
		2750
		2751	coro->startcv = (CV )SvREFCNT_inc_NN ((SV )cb);
		2752
2371	for (i = 1; i < items; i++)	2753	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2754	av_push (coro->args, newSVsv (ST (i)));
		2755	}
2373	}	2756	}
2374	OUTPUT:	2757	OUTPUT:
2375	RETVAL	2758	RETVAL
2376		2759
2377	void	2760	void
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	2889	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	2890	PROTOTYPE: $;$
2508	CODE:	2891	CODE:
2509	{	2892	{
2510	struct coro *current = SvSTATE_current;	2893	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	2894	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	2895	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2896	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	2897	}
2515		2898
2516	void	2899	void
…		…
2575		2958
2576	BOOT:	2959	BOOT:
2577	{	2960	{
2578	int i;	2961	int i;
2579		2962
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	2963	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2964	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2965	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		2966	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		2967	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2968	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585	SvREADONLY_on (coro_current);	2969
		2970	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		2971	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		2972	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		2973	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2586		2974
2587	coro_stash = gv_stashpv ("Coro", TRUE);	2975	coro_stash = gv_stashpv ("Coro", TRUE);
2588		2976
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2977	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	2978	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2605	coroapi.ready = api_ready;	2993	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	2994	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	2995	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	2996	coroapi.current = coro_current;
2609		2997
2610	GCoroAPI = &coroapi;	2998	/GCoroAPI = &coroapi;/
2611	sv_setiv (sv, (IV)&coroapi);	2999	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	3000	SvREADONLY_on (sv);
2613	}	3001	}
2614	}	3002	}
2615		3003
…		…
2679	CODE:	3067	CODE:
2680	RETVAL = coro_nready;	3068	RETVAL = coro_nready;
2681	OUTPUT:	3069	OUTPUT:
2682	RETVAL	3070	RETVAL
2683		3071
2684	# for async_pool speedup
2685	void	3072	void
2686	_pool_1 (SV *cb)	3073	_pool_handler (...)
2687	CODE:	3074	CODE:
2688	{	3075	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		3076
2696	if (!invoke)	3077	void
		3078	async_pool (SV *cv, ...)
		3079	PROTOTYPE: &@
		3080	PPCODE:
		3081	{
		3082	HV hv = (HV )av_pop (av_async_pool);
		3083	AV *av = newAV ();
		3084	SV *cb = ST (0);
		3085	int i;
		3086
		3087	av_extend (av, items - 2);
		3088	for (i = 1; i < items; ++i)
		3089	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3090
		3091	if ((SV *)hv == &PL_sv_undef)
2697	{	3092	{
2698	SV *old = PL_diehook;	3093	PUSHMARK (SP);
2699	PL_diehook = 0;	3094	EXTEND (SP, 2);
2700	SvREFCNT_dec (old);	3095	PUSHs (sv_Coro);
2701	croak ("\3async_pool terminate\2\n");	3096	PUSHs ((SV *)cv_pool_handler);
		3097	PUTBACK;
		3098	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3099	SPAGAIN;
		3100
		3101	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702	}	3102	}
2703		3103
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	{	3104	{
2717	av_fill (defav, len - 1);	3105	struct coro *coro = SvSTATE_hv (hv);
2718	for (i = 0; i < len; ++i)	3106
2719	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3107	assert (!coro->invoke_cb);
		3108	assert (!coro->invoke_av);
		3109	coro->invoke_cb = SvREFCNT_inc (cb);
		3110	coro->invoke_av = av;
2720	}	3111	}
		3112
		3113	api_ready (aTHX_ (SV *)hv);
		3114
		3115	if (GIMME_V != G_VOID)
		3116	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3117	else
		3118	SvREFCNT_dec (hv);
2721	}	3119	}
		3120
		3121	SV *
		3122	rouse_cb ()
		3123	PROTOTYPE:
		3124	CODE:
		3125	RETVAL = coro_new_rouse_cb (aTHX);
		3126	OUTPUT:
		3127	RETVAL
2722		3128
2723	void	3129	void
2724	_pool_2 (SV *cb)	3130	rouse_wait (...)
		3131	PROTOTYPE: ;$
2725	CODE:	3132	PPCODE:
2726	{	3133	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		3134
2756		3135
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3136	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3137
2759	BOOT:	3138	BOOT:
…		…
2761		3140
2762		3141
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3142	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3143
2765	SV *	3144	SV *
2766	new (SV klass, SV count_ = 0)	3145	new (SV klass, SV count = 0)
2767	CODE:	3146	CODE:
2768	{	3147	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3148	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3149	GvSTASH (CvGV (cv))
2771	SV **ary;	3150	);
		3151	OUTPUT:
		3152	RETVAL
2772		3153
2773	/* unfortunately, building manually saves memory */	3154	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3155	SV *
2775	AvALLOC (av) = ary;	3156	_alloc (int count)
2776	AvARRAY (av) = ary;	3157	CODE:
2777	AvMAX (av) = 1;	3158	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:	3159	OUTPUT:
2784	RETVAL	3160	RETVAL
2785		3161
2786	SV *	3162	SV *
2787	count (SV *self)	3163	count (SV *self)
…		…
2796	adjust = 1	3172	adjust = 1
2797	CODE:	3173	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3174	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3175
2800	void	3176	void
2801	down (SV *self)	3177	down (...)
2802	CODE:	3178	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3179	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3180
		3181	void
		3182	wait (...)
		3183	CODE:
		3184	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3185
2805	void	3186	void
2806	try (SV *self)	3187	try (SV *self)
2807	PPCODE:	3188	PPCODE:
2808	{	3189	{
…		…
2820	XSRETURN_NO;	3201	XSRETURN_NO;
2821	}	3202	}
2822		3203
2823	void	3204	void
2824	waiters (SV *self)	3205	waiters (SV *self)
2825	CODE:	3206	PPCODE:
2826	{	3207	{
2827	AV av = (AV )SvRV (self);	3208	AV av = (AV )SvRV (self);
		3209	int wcount = AvFILLp (av) + 1 - 1;
2828		3210
2829	if (GIMME_V == G_SCALAR)	3211	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3212	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3213	else
2832	{	3214	{
2833	int i;	3215	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3216	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3217	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3218	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3219	}
2838	}	3220	}
		3221
		3222	MODULE = Coro::State PACKAGE = Coro::Signal
		3223
		3224	SV *
		3225	new (SV *klass)
		3226	CODE:
		3227	RETVAL = sv_bless (
		3228	coro_waitarray_new (aTHX_ 0),
		3229	GvSTASH (CvGV (cv))
		3230	);
		3231	OUTPUT:
		3232	RETVAL
		3233
		3234	void
		3235	wait (...)
		3236	CODE:
		3237	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3238
		3239	void
		3240	broadcast (SV *self)
		3241	CODE:
		3242	{
		3243	AV av = (AV )SvRV (self);
		3244	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3245	}
		3246
		3247	void
		3248	send (SV *self)
		3249	CODE:
		3250	{
		3251	AV av = (AV )SvRV (self);
		3252
		3253	if (AvFILLp (av))
		3254	coro_signal_wake (aTHX_ av, 1);
		3255	else
		3256	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3257	}
		3258
		3259	IV
		3260	awaited (SV *self)
		3261	CODE:
		3262	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3263	OUTPUT:
		3264	RETVAL
2839		3265
2840		3266
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3267	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3268
2843	BOOT:	3269	BOOT:
…		…
2871		3297
2872	void	3298	void
2873	_register (char target, char proto, SV *req)	3299	_register (char target, char proto, SV *req)
2874	CODE:	3300	CODE:
2875	{	3301	{
2876	HV *st;	3302	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 */	3303	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3304	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3305	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3306	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3307	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.290 by root, Tue Nov 18 05:51:38 2008 UTC vs. Revision 1.316 by root, Thu Nov 20 06:01:40 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.290 by root, Tue Nov 18 05:51:38 2008 UTC vs.
Revision 1.316 by root, Thu Nov 20 06:01:40 2008 UTC