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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs.
Revision 1.312 by root, Thu Nov 20 03:10:30 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
…		…
120	#endif	120	#endif
121		121
122	/* The next macros try to return the current stack pointer, in an as	122	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	123	* portable way as possible. */
124	#if __GNUC__ >= 4	124	#if __GNUC__ >= 4
		125	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	126	# define STACKLEVEL __builtin_frame_address (0)
126	#else	127	#else
127	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel	128	# define dSTACKLEVEL volatile void *stacklevel
		129	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	130	#endif
129		131
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	132	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		133
132	#if __GNUC__ >= 3	134	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	145	#define expect_true(expr) expect ((expr) != 0, 1)
144		146
145	#define NOINLINE attribute ((noinline))	147	#define NOINLINE attribute ((noinline))
146		148
147	#include "CoroAPI.h"	149	#include "CoroAPI.h"
		150	#define GCoroAPI (&coroapi) /* very sneaky */
148		151
149	#ifdef USE_ITHREADS	152	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	153	# if CORO_PTHREAD
151	static void *coro_thx;	154	static void *coro_thx;
152	# endif	155	# endif
…		…
173	static HV hv_sig; / %SIG */	176	static HV hv_sig; / %SIG */
174		177
175	/* async_pool helper stuff */	178	/* async_pool helper stuff */
176	static SV *sv_pool_rss;	179	static SV *sv_pool_rss;
177	static SV *sv_pool_size;	180	static SV *sv_pool_size;
		181	static SV *sv_async_pool_idle;
178	static AV *av_async_pool;	182	static AV *av_async_pool;
		183	static SV *sv_Coro;
		184	static CV *cv_pool_handler;
		185	static CV *cv_coro_new;
179		186
180	/* Coro::AnyEvent */	187	/* Coro::AnyEvent */
181	static SV *sv_activity;	188	static SV *sv_activity;
182		189
183	static struct coro_cctx *cctx_first;	190	static struct coro_cctx *cctx_first;
…		…
243	/* state data */	250	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	251	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	252	AV *mainstack;
246	perl_slots slot; / basically the saved sp */	253	perl_slots slot; / basically the saved sp */
247		254
		255	CV startcv; / the CV to execute */
248	AV args; / data associated with this coroutine (initial args) */	256	AV args; / data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	257	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	258	int flags; /* CF_ flags */
251	HV hv; / the perl hash associated with this coro, if any */	259	HV hv; / the perl hash associated with this coro, if any */
252	void (on_destroy)(pTHX_ struct coro coro);	260	void (on_destroy)(pTHX_ struct coro coro);
253		261
254	/* statistics */	262	/* statistics */
255	int usecount; /* number of transfers to this coro */	263	int usecount; /* number of transfers to this coro */
256		264
257	/* coro process data */	265	/* coro process data */
258	int prio;	266	int prio;
259	SV throw; / exception to be thrown */	267	SV except; / exception to be thrown */
		268	SV *rouse_cb;
260		269
261	/* async_pool */	270	/* async_pool */
262	SV *saved_deffh;	271	SV *saved_deffh;
		272	SV *invoke_cb;
		273	AV *invoke_av;
263		274
264	/* linked list */	275	/* linked list */
265	struct coro next, prev;	276	struct coro next, prev;
266	};	277	};
267		278
…		…
270		281
271	/* the following variables are effectively part of the perl context */	282	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	283	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	284	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	285	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		286
277	/ Coro ******************************************************************/	287	/ Coro ******************************************************************/
278		288
279	#define PRIO_MAX 3	289	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	290	#define PRIO_HIGH 1
…		…
285		295
286	/* for Coro.pm */	296	/* for Coro.pm */
287	static SV *coro_current;	297	static SV *coro_current;
288	static SV *coro_readyhook;	298	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	299	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		300	static CV cv_coro_run, cv_coro_terminate;
290	static struct coro *coro_first;	301	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	302	#define coro_nready coroapi.nready
292		303
293	/ lowlevel stuff ********************************************************/	304	/ lowlevel stuff ********************************************************/
294		305
…		…
318	#if PERL_VERSION_ATLEAST (5,10,0)	329	#if PERL_VERSION_ATLEAST (5,10,0)
319	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	330	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
320	get_hv (name, create);	331	get_hv (name, create);
321	#endif	332	#endif
322	return get_hv (name, create);	333	return get_hv (name, create);
		334	}
		335
		336	/* may croak */
		337	INLINE CV *
		338	coro_sv_2cv (pTHX_ SV *sv)
		339	{
		340	HV *st;
		341	GV *gvp;
		342	return sv_2cv (sv, &st, &gvp, 0);
323	}	343	}
324		344
325	static AV *	345	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	346	coro_clone_padlist (pTHX_ CV *cv)
327	{	347	{
…		…
446	else	466	else
447	{	467	{
448	#if CORO_PREFER_PERL_FUNCTIONS	468	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	469	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	470	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	471	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	472	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	473	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	474	SvREFCNT_dec (cp);
455	#else	475	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	476	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
509		529
510	PUTBACK;	530	PUTBACK;
511	}	531	}
512		532
513	slf_frame = c->slf_frame;	533	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	534	CORO_THROW = c->except;
515	}	535	}
516		536
517	static void	537	static void
518	save_perl (pTHX_ Coro__State c)	538	save_perl (pTHX_ Coro__State c)
519	{	539	{
520	c->throw = coro_throw;	540	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	541	c->slf_frame = slf_frame;
522		542
523	{	543	{
524	dSP;	544	dSP;
525	I32 cxix = cxstack_ix;	545	I32 cxix = cxstack_ix;
…		…
600	* of perl.c:init_stacks, except that it uses less memory	620	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	621	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	622	* not usually need a lot of stackspace.
603	*/	623	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	624	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	625	# define coro_init_stacks(thx) init_stacks ()
606	#else	626	#else
607	static void	627	static void
608	coro_init_stacks (pTHX)	628	coro_init_stacks (pTHX)
609	{	629	{
610	PL_curstackinfo = new_stackinfo(32, 8);	630	PL_curstackinfo = new_stackinfo(32, 8);
…		…
673	#if !PERL_VERSION_ATLEAST (5,10,0)	693	#if !PERL_VERSION_ATLEAST (5,10,0)
674	Safefree (PL_retstack);	694	Safefree (PL_retstack);
675	#endif	695	#endif
676	}	696	}
677		697
		698	#define CORO_RSS \
		699	rss += sizeof (SYM (curstackinfo)); \
		700	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		701	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		702	rss += SYM (tmps_max) * sizeof (SV *); \
		703	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		704	rss += SYM (scopestack_max) * sizeof (I32); \
		705	rss += SYM (savestack_max) * sizeof (ANY);
		706
678	static size_t	707	static size_t
679	coro_rss (pTHX_ struct coro *coro)	708	coro_rss (pTHX_ struct coro *coro)
680	{	709	{
681	size_t rss = sizeof (*coro);	710	size_t rss = sizeof (*coro);
682		711
683	if (coro->mainstack)	712	if (coro->mainstack)
684	{	713	{
685	perl_slots tmp_slot;
686	perl_slots *slot;
687
688	if (coro->flags & CF_RUNNING)	714	if (coro->flags & CF_RUNNING)
689	{	715	{
690	slot = &tmp_slot;	716	#define SYM(sym) PL_ ## sym
691		717	CORO_RSS;
692	#define VAR(name,type) slot->name = PL_ ## name;
693	# include "state.h"
694	#undef VAR	718	#undef SYM
695	}	719	}
696	else	720	else
697	slot = coro->slot;
698
699	if (slot)
700	{	721	{
701	rss += sizeof (slot->curstackinfo);	722	#define SYM(sym) coro->slot->sym
702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	723	CORO_RSS;
703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	724	#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	}	725	}
713	}	726	}
714		727
715	return rss;	728	return rss;
716	}	729	}
…		…
857	{	870	{
858	dSP;	871	dSP;
859	UNOP myop;	872	UNOP myop;
860		873
861	Zero (&myop, 1, UNOP);	874	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	875	myop.op_next = Nullop;
		876	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	877	myop.op_flags = OPf_WANT_VOID;
864		878
865	PUSHMARK (SP);	879	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	880	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	881	PUTBACK;
868	PL_op = (OP *)&myop;	882	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	883	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	884	}
872		885
873	/* this newly created coroutine might be run on an existing cctx which most	886	/* this newly created coroutine might be run on an existing cctx which most
874	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	887	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	888	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	889	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	890	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		891
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	892	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		893	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	894	coro_setup_op.op_type = OP_CUSTOM;
881	coro_setup_op.op_ppaddr = pp_slf;	895	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	896	/* no flags etc. required, as an init function won't be called */
883		897
884	PL_op = (OP *)&coro_setup_op;	898	PL_op = (OP *)&coro_setup_op;
885		899
886	/* copy throw, in case it was set before coro_setup */	900	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	901	CORO_THROW = coro->except;
888	}	902	}
889		903
890	static void	904	static void
891	coro_destruct (pTHX_ struct coro *coro)	905	coro_destruct (pTHX_ struct coro *coro)
892	{	906	{
…		…
916		930
917	SvREFCNT_dec (PL_diehook);	931	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	932	SvREFCNT_dec (PL_warnhook);
919		933
920	SvREFCNT_dec (coro->saved_deffh);	934	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	935	SvREFCNT_dec (coro->rouse_cb);
		936	SvREFCNT_dec (coro->invoke_cb);
		937	SvREFCNT_dec (coro->invoke_av);
922		938
923	coro_destruct_stacks (aTHX);	939	coro_destruct_stacks (aTHX);
924	}	940	}
925		941
926	INLINE void	942	INLINE void
…		…
1013	SAVETMPS;	1029	SAVETMPS;
1014	EXTEND (SP, 3);	1030	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1031	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1032	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1033	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1034	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1035	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1036	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);	1037	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1022	SPAGAIN;	1038	SPAGAIN;
1023	FREETMPS;	1039	FREETMPS;
…		…
1070	static int	1086	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1087	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1088	{
1073	*frame = cctx_ssl_frame;	1089	*frame = cctx_ssl_frame;
1074		1090
1075	return 1; /* execute the restored frame - there must be one */	1091	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1092	}
1077		1093
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1094	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1095	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1096	cctx_prepare (pTHX_ coro_cctx *cctx)
1081	{	1097	{
1082	PL_top_env = &PL_start_env;	1098	PL_top_env = &PL_start_env;
1083		1099
1084	if (cctx->flags & CC_TRACE)	1100	if (cctx->flags & CC_TRACE)
1085	PL_runops = runops_trace;	1101	PL_runops = runops_trace;
1086		1102
1087	/* we already must be in an SLF call, there is no other valid way	1103	/* we already must be executing an SLF op, there is no other valid way
1088	* that can lead to creation of a new cctx */	1104	* that can lead to creation of a new cctx */
1089	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1105	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1106	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1107
		1108	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1092	cctx_ssl_cctx = cctx;	1109	cctx_ssl_cctx = cctx;
1093	cctx_ssl_frame = slf_frame;	1110	cctx_ssl_frame = slf_frame;
1094		1111
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1112	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1113	slf_frame.check = slf_check_set_stacklevel;
…		…
1128	transfer_tail (aTHX);	1145	transfer_tail (aTHX);
1129		1146
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1147	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1148	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1149	perl_run (PL_curinterp);
		1150	/*
		1151	* Unfortunately, there is no way to get at the return values of the
		1152	* coro body here, as perl_run destroys these
		1153	*/
1133		1154
1134	/*	1155	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1156	* 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)	1157	* 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	1158	* reason for perl_run to return. We try to exit by jumping to the
…		…
1317	dSTACKLEVEL;	1338	dSTACKLEVEL;
1318		1339
1319	/* sometimes transfer is only called to set idle_sp */	1340	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1341	if (expect_false (!next))
1321	{	1342	{
1322	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1343	((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 */	1344	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1324	}	1345	}
1325	else if (expect_true (prev != next))	1346	else if (expect_true (prev != next))
1326	{	1347	{
1327	coro_cctx *prev__cctx;	1348	coro_cctx *prev__cctx;
…		…
1352		1373
1353	prev__cctx = prev->cctx;	1374	prev__cctx = prev->cctx;
1354		1375
1355	/* possibly untie and reuse the cctx */	1376	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1377	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1378	prev__cctx->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1379	&& !(prev__cctx->flags & CC_TRACE)
1359	&& !force_cctx	1380	&& !force_cctx
1360	))	1381	))
1361	{	1382	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1383	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
…		…
1429		1450
1430	coro->slot = 0;	1451	coro->slot = 0;
1431	}	1452	}
1432		1453
1433	cctx_destroy (coro->cctx);	1454	cctx_destroy (coro->cctx);
		1455	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1456	SvREFCNT_dec (coro->args);
		1457	SvREFCNT_dec (CORO_THROW);
1435		1458
1436	if (coro->next) coro->next->prev = coro->prev;	1459	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1460	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1461	if (coro == coro_first) coro_first = coro->next;
1439		1462
…		…
1493		1516
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1517	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1518	TRANSFER (ta, 1);
1496	}	1519	}
1497		1520
		1521	/*****************************************************************************/
		1522	/* gensub: simple closure generation utility */
		1523
		1524	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1525
		1526	/* create a closure from XS, returns a code reference */
		1527	/* the arg can be accessed via GENSUB_ARG from the callback */
		1528	/* the callback must use dXSARGS/XSRETURN */
		1529	static SV *
		1530	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
		1531	{
		1532	CV cv = (CV )newSV (0);
		1533
		1534	sv_upgrade ((SV *)cv, SVt_PVCV);
		1535
		1536	CvANON_on (cv);
		1537	CvISXSUB_on (cv);
		1538	CvXSUB (cv) = xsub;
		1539	GENSUB_ARG = arg;
		1540
		1541	return newRV_noinc ((SV *)cv);
		1542	}
		1543
1498	/ Coro ******************************************************************/	1544	/ Coro ******************************************************************/
1499		1545
1500	INLINE void	1546	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1547	coro_enq (pTHX_ struct coro *coro)
1502	{	1548	{
…		…
1699	if (coro->flags & CF_RUNNING)	1745	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1746	PL_runops = RUNOPS_DEFAULT;
1701	else	1747	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1748	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1749	}
		1750	}
		1751
		1752	/*****************************************************************************/
		1753	/* async pool handler */
		1754
		1755	static int
		1756	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1757	{
		1758	HV hv = (HV )SvRV (coro_current);
		1759	struct coro coro = (struct coro )frame->data;
		1760
		1761	if (!coro->invoke_cb)
		1762	return 1; /* loop till we have invoke */
		1763	else
		1764	{
		1765	int i, len;
		1766
		1767	hv_store (hv, "desc", sizeof ("desc") - 1,
		1768	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1769
		1770	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1771
		1772	len = av_len (coro->invoke_av);
		1773
		1774	{
		1775	dSP;
		1776	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1777	PUTBACK;
		1778	}
		1779
		1780	SvREFCNT_dec (GvAV (PL_defgv));
		1781	GvAV (PL_defgv) = coro->invoke_av;
		1782	coro->invoke_av = 0;
		1783
		1784	return 0;
		1785	}
		1786	}
		1787
		1788	static void
		1789	slf_init_pool_handler (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1790	{
		1791	HV hv = (HV )SvRV (coro_current);
		1792	struct coro coro = SvSTATE_hv ((SV )hv);
		1793
		1794	if (expect_true (coro->saved_deffh))
		1795	{
		1796	/* subsequent iteration */
		1797	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1798	coro->saved_deffh = 0;
		1799
		1800	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1801	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1802	{
		1803	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1804	coro->invoke_av = newAV ();
		1805
		1806	frame->prepare = prepare_nop;
		1807	}
		1808	else
		1809	{
		1810	av_clear (GvAV (PL_defgv));
		1811	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1812
		1813	coro->prio = 0;
		1814
		1815	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1816	api_trace (aTHX_ coro_current, 0);
		1817
		1818	frame->prepare = prepare_schedule;
		1819	av_push (av_async_pool, SvREFCNT_inc (hv));
		1820	}
		1821	}
		1822	else
		1823	{
		1824	/* first iteration, simply fall through */
		1825	frame->prepare = prepare_nop;
		1826	}
		1827
		1828	frame->check = slf_check_pool_handler;
		1829	frame->data = (void *)coro;
		1830	}
		1831
		1832	/*****************************************************************************/
		1833	/* rouse callback */
		1834
		1835	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1836
		1837	static void
		1838	coro_rouse_callback (pTHX_ CV *cv)
		1839	{
		1840	dXSARGS;
		1841	SV data = (SV )GENSUB_ARG;
		1842
		1843	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1844	{
		1845	/* first call, set args */
		1846	int i;
		1847	AV *av = newAV ();
		1848	SV *coro = SvRV (data);
		1849
		1850	SvRV_set (data, (SV *)av);
		1851	api_ready (aTHX_ coro);
		1852	SvREFCNT_dec (coro);
		1853
		1854	/* better take a full copy of the arguments */
		1855	while (items--)
		1856	av_store (av, items, newSVsv (ST (items)));
		1857	}
		1858
		1859	XSRETURN_EMPTY;
		1860	}
		1861
		1862	static int
		1863	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1864	{
		1865	SV data = (SV )frame->data;
		1866
		1867	if (CORO_THROW)
		1868	return 0;
		1869
		1870	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1871	return 1;
		1872
		1873	/* now push all results on the stack */
		1874	{
		1875	dSP;
		1876	AV av = (AV )SvRV (data);
		1877	int i;
		1878
		1879	EXTEND (SP, AvFILLp (av) + 1);
		1880	for (i = 0; i <= AvFILLp (av); ++i)
		1881	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1882
		1883	/* we have stolen the elements, so ste length to zero and free */
		1884	AvFILLp (av) = -1;
		1885	av_undef (av);
		1886
		1887	PUTBACK;
		1888	}
		1889
		1890	return 0;
		1891	}
		1892
		1893	static void
		1894	slf_init_rouse_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1895	{
		1896	SV *cb;
		1897
		1898	if (items)
		1899	cb = arg [0];
		1900	else
		1901	{
		1902	struct coro *coro = SvSTATE_current;
		1903
		1904	if (!coro->rouse_cb)
		1905	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1906
		1907	cb = sv_2mortal (coro->rouse_cb);
		1908	coro->rouse_cb = 0;
		1909	}
		1910
		1911	if (!SvROK (cb)
		1912	\|\| SvTYPE (SvRV (cb)) != SVt_PVCV
		1913	\|\| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1914	croak ("Coro::rouse_wait called with illegal callback argument,");
		1915
		1916	{
		1917	CV cv = (CV )SvRV (cb); /* for GENSUB_ARG */
		1918	SV data = (SV )GENSUB_ARG;
		1919
		1920	frame->data = (void *)data;
		1921	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		1922	frame->check = slf_check_rouse_wait;
		1923	}
		1924	}
		1925
		1926	static SV *
		1927	coro_new_rouse_cb (pTHX)
		1928	{
		1929	HV hv = (HV )SvRV (coro_current);
		1930	struct coro *coro = SvSTATE_hv (hv);
		1931	SV data = newRV_inc ((SV )hv);
		1932	SV cb = gensub (aTHX_ coro_rouse_callback, (void )data);
		1933
		1934	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		1935	SvREFCNT_dec (data); /* magicext increases the refcount */
		1936
		1937	SvREFCNT_dec (coro->rouse_cb);
		1938	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		1939
		1940	return cb;
1704	}	1941	}
1705		1942
1706	/*****************************************************************************/	1943	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	1944	/* schedule-like-function opcode (SLF) */
1708		1945
…		…
1835	}	2072	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	2073	while (slf_frame.check (aTHX_ &slf_frame));
1837		2074
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2075	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		2076
		2077	/* exception handling */
		2078	if (expect_false (CORO_THROW))
		2079	{
		2080	SV *exception = sv_2mortal (CORO_THROW);
		2081
		2082	CORO_THROW = 0;
		2083	sv_setsv (ERRSV, exception);
		2084	croak (0);
		2085	}
		2086
1840	/* return value handling - mostly like entersub */	2087	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2088	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2089	if (GIMME_V == G_SCALAR)
1843	{	2090	{
1844	dSP;	2091	dSP;
…		…
1850	bot [1] = *sp;	2097	bot [1] = *sp;
1851		2098
1852	SP = bot + 1;	2099	SP = bot + 1;
1853		2100
1854	PUTBACK;	2101	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	}	2102	}
1866		2103
1867	return NORMAL;	2104	return NORMAL;
1868	}	2105	}
1869		2106
…		…
1991	PerlIOBuf_get_cnt,	2228	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2229	PerlIOBuf_set_ptrcnt,
1993	};	2230	};
1994		2231
1995	/*****************************************************************************/	2232	/*****************************************************************************/
		2233	/* Coro::Semaphore & Coro::Signal */
		2234
		2235	static SV *
		2236	coro_waitarray_new (pTHX_ int count)
		2237	{
		2238	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2239	AV *av = newAV ();
		2240	SV **ary;
		2241
		2242	/* unfortunately, building manually saves memory */
		2243	Newx (ary, 2, SV *);
		2244	AvALLOC (av) = ary;
		2245	/AvARRAY (av) = ary;/
		2246	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2247	AvMAX (av) = 1;
		2248	AvFILLp (av) = 0;
		2249	ary [0] = newSViv (count);
		2250
		2251	return newRV_noinc ((SV *)av);
		2252	}
		2253
1996	/* Coro::Semaphore */	2254	/* semaphore */
1997		2255
1998	static void	2256	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2257	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2258	{
2001	SV *count_sv = AvARRAY (av)[0];	2259	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2271	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2272	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2273	cb = av_shift (av);
2016		2274
2017	if (SvOBJECT (cb))	2275	if (SvOBJECT (cb))
		2276	{
2018	api_ready (aTHX_ cb);	2277	api_ready (aTHX_ cb);
2019	else	2278	--count;
2020	croak ("callbacks not yet supported");	2279	}
		2280	else if (SvTYPE (cb) == SVt_PVCV)
		2281	{
		2282	dSP;
		2283	PUSHMARK (SP);
		2284	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2285	PUTBACK;
		2286	call_sv (cb, G_VOID \| G_DISCARD \| G_EVAL \| G_KEEPERR);
		2287	}
2021		2288
2022	SvREFCNT_dec (cb);	2289	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2290	}
2026	}	2291	}
2027		2292
2028	static void	2293	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2294	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2296	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2297	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2298	}
2034		2299
2035	static int	2300	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2301	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2302	{
2038	AV av = (AV )frame->data;	2303	AV av = (AV )frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2304	SV *count_sv = AvARRAY (av)[0];
2040		2305
		2306	/* if we are about to throw, don't actually acquire the lock, just throw */
		2307	if (CORO_THROW)
		2308	return 0;
2041	if (SvIVX (count_sv) > 0)	2309	else if (SvIVX (count_sv) > 0)
2042	{	2310	{
2043	SvSTATE_current->on_destroy = 0;	2311	SvSTATE_current->on_destroy = 0;
		2312
		2313	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2314	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2315	else
		2316	coro_semaphore_adjust (aTHX_ av, 0);
		2317
2045	return 0;	2318	return 0;
2046	}	2319	}
2047	else	2320	else
2048	{	2321	{
2049	int i;	2322	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2331	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2332	return 1;
2060	}	2333	}
2061	}	2334	}
2062		2335
2063	static void	2336	static int
		2337	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2338	{
		2339	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2340	}
		2341
		2342	static int
		2343	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2344	{
		2345	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2346	}
		2347
		2348	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2349	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2065	{	2350	{
2066	AV av = (AV )SvRV (arg [0]);	2351	AV av = (AV )SvRV (arg [0]);
2067		2352
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2353	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2354	{
2070	frame->data = (void *)av;	2355	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2356	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2357	}
2074	else	2358	else
2075	{	2359	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2360	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2361
2078	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2362	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2079	frame->prepare = prepare_schedule;	2363	frame->prepare = prepare_schedule;
2080		2364
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2365	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2366	/* 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;	2367	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2368	}
		2369	}
2086		2370
		2371	static void
		2372	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2373	{
		2374	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2375	frame->check = slf_check_semaphore_down;
2088
2089	}	2376	}
2090		2377
2091	/*****************************************************************************/	2378	static void
2092	/* gensub: simple closure generation utility */	2379	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	{	2380	{
2102	CV cv = (CV )newSV (0);	2381	if (items >= 2)
		2382	{
		2383	/* callback form */
		2384	AV av = (AV )SvRV (arg [0]);
		2385	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103		2386
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2387	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2388
2106	CvANON_on (cv);	2389	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2390	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2391
2111	return newRV_noinc ((SV *)cv);	2392	frame->prepare = prepare_nop;
		2393	frame->check = slf_check_nop;
		2394	}
		2395	else
		2396	{
		2397	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2398	frame->check = slf_check_semaphore_wait;
		2399	}
		2400	}
		2401
		2402	/* signal */
		2403
		2404	static void
		2405	coro_signal_wake (pTHX_ AV *av, int count)
		2406	{
		2407	SvIVX (AvARRAY (av)[0]) = 0;
		2408
		2409	/* now signal count waiters */
		2410	while (count > 0 && AvFILLp (av) > 0)
		2411	{
		2412	SV *cb;
		2413
		2414	/* swap first two elements so we can shift a waiter */
		2415	cb = AvARRAY (av)[0];
		2416	AvARRAY (av)[0] = AvARRAY (av)[1];
		2417	AvARRAY (av)[1] = cb;
		2418
		2419	cb = av_shift (av);
		2420
		2421	api_ready (aTHX_ cb);
		2422	sv_setiv (cb, 0); /* signal waiter */
		2423	SvREFCNT_dec (cb);
		2424
		2425	--count;
		2426	}
		2427	}
		2428
		2429	static int
		2430	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2431	{
		2432	/* if we are about to throw, also stop waiting */
		2433	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2434	}
		2435
		2436	static void
		2437	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2438	{
		2439	AV av = (AV )SvRV (arg [0]);
		2440
		2441	if (SvIVX (AvARRAY (av)[0]))
		2442	{
		2443	SvIVX (AvARRAY (av)[0]) = 0;
		2444	frame->prepare = prepare_nop;
		2445	frame->check = slf_check_nop;
		2446	}
		2447	else
		2448	{
		2449	SV waiter = newRV_inc (SvRV (coro_current)); / owned by signal av */
		2450
		2451	av_push (av, waiter);
		2452
		2453	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */
		2454	frame->prepare = prepare_schedule;
		2455	frame->check = slf_check_signal_wait;
		2456	}
2112	}	2457	}
2113		2458
2114	/*****************************************************************************/	2459	/*****************************************************************************/
2115	/* Coro::AIO */	2460	/* Coro::AIO */
2116		2461
…		…
2131	dXSARGS;	2476	dXSARGS;
2132	AV state = (AV )GENSUB_ARG;	2477	AV state = (AV )GENSUB_ARG;
2133	SV *coro = av_pop (state);	2478	SV *coro = av_pop (state);
2134	SV *data_sv = newSV (sizeof (struct io_state));	2479	SV *data_sv = newSV (sizeof (struct io_state));
2135		2480
2136	av_extend (state, items);	2481	av_extend (state, items - 1);
2137		2482
2138	sv_upgrade (data_sv, SVt_PV);	2483	sv_upgrade (data_sv, SVt_PV);
2139	SvCUR_set (data_sv, sizeof (struct io_state));	2484	SvCUR_set (data_sv, sizeof (struct io_state));
2140	SvPOK_only (data_sv);	2485	SvPOK_only (data_sv);
2141		2486
…		…
2165		2510
2166	static int	2511	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2512	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2513	{
2169	AV state = (AV )frame->data;	2514	AV state = (AV )frame->data;
		2515
		2516	/* if we are about to throw, return early */
		2517	/* this does not cancel the aio request, but at least */
		2518	/* it quickly returns */
		2519	if (CORO_THROW)
		2520	return 0;
2170		2521
2171	/* one element that is an RV? repeat! */	2522	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2523	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2524	return 1;
2174		2525
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2696	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2697	}
2347		2698
2348	SV *	2699	SV *
2349	new (char *klass, ...)	2700	new (char *klass, ...)
		2701	ALIAS:
		2702	Coro::new = 1
2350	CODE:	2703	CODE:
2351	{	2704	{
2352	struct coro *coro;	2705	struct coro *coro;
2353	MAGIC *mg;	2706	MAGIC *mg;
2354	HV *hv;	2707	HV *hv;
		2708	CV *cb;
2355	int i;	2709	int i;
		2710
		2711	if (items > 1)
		2712	{
		2713	cb = coro_sv_2cv (aTHX_ ST (1));
		2714
		2715	if (!ix)
		2716	{
		2717	if (CvISXSUB (cb))
		2718	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2719
		2720	if (!CvROOT (cb))
		2721	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2722	}
		2723	}
2356		2724
2357	Newz (0, coro, 1, struct coro);	2725	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2726	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2727	coro->flags = CF_NEW;
2360		2728
…		…
2365	coro->hv = hv = newHV ();	2733	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);	2734	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
2367	mg->mg_flags \|= MGf_DUP;	2735	mg->mg_flags \|= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2736	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2737
		2738	if (items > 1)
		2739	{
2370	av_extend (coro->args, items - 1);	2740	av_extend (coro->args, items - 1 + ix - 1);
		2741
		2742	if (ix)
		2743	{
		2744	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2745	cb = cv_coro_run;
		2746	}
		2747
		2748	coro->startcv = (CV )SvREFCNT_inc_NN ((SV )cb);
		2749
2371	for (i = 1; i < items; i++)	2750	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2751	av_push (coro->args, newSVsv (ST (i)));
		2752	}
2373	}	2753	}
2374	OUTPUT:	2754	OUTPUT:
2375	RETVAL	2755	RETVAL
2376		2756
2377	void	2757	void
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	2886	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	2887	PROTOTYPE: $;$
2508	CODE:	2888	CODE:
2509	{	2889	{
2510	struct coro *current = SvSTATE_current;	2890	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	2891	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	2892	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2893	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	2894	}
2515		2895
2516	void	2896	void
…		…
2575		2955
2576	BOOT:	2956	BOOT:
2577	{	2957	{
2578	int i;	2958	int i;
2579		2959
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	2960	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2961	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2962	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		2963	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		2964	cv_coro_terminate = get_cv ( "Coro::terminate", GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2965	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);
2585	SvREADONLY_on (coro_current);	2966	SvREADONLY_on (coro_current);
		2967
		2968	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		2969	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		2970	cv_pool_handler = get_cv ("Coro::_pool_handler", 0); SvREADONLY_on (cv_pool_handler);
		2971	cv_coro_new = get_cv ("Coro::new", 0); SvREADONLY_on (cv_coro_new);
2586		2972
2587	coro_stash = gv_stashpv ("Coro", TRUE);	2973	coro_stash = gv_stashpv ("Coro", TRUE);
2588		2974
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2975	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	2976	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2605	coroapi.ready = api_ready;	2991	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	2992	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	2993	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	2994	coroapi.current = coro_current;
2609		2995
2610	GCoroAPI = &coroapi;	2996	/GCoroAPI = &coroapi;/
2611	sv_setiv (sv, (IV)&coroapi);	2997	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	2998	SvREADONLY_on (sv);
2613	}	2999	}
2614	}	3000	}
2615		3001
…		…
2679	CODE:	3065	CODE:
2680	RETVAL = coro_nready;	3066	RETVAL = coro_nready;
2681	OUTPUT:	3067	OUTPUT:
2682	RETVAL	3068	RETVAL
2683		3069
2684	# for async_pool speedup
2685	void	3070	void
2686	_pool_1 (SV *cb)	3071	_pool_handler (...)
2687	CODE:	3072	CODE:
2688	{	3073	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		3074
2696	if (!invoke)	3075	void
		3076	async_pool (SV *cv, ...)
		3077	PROTOTYPE: &@
		3078	PPCODE:
		3079	{
		3080	HV hv = (HV )av_pop (av_async_pool);
		3081	AV *av = newAV ();
		3082	SV *cb = ST (0);
		3083	int i;
		3084
		3085	av_extend (av, items - 2);
		3086	for (i = 1; i < items; ++i)
		3087	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3088
		3089	if ((SV *)hv == &PL_sv_undef)
2697	{	3090	{
2698	SV *old = PL_diehook;	3091	PUSHMARK (SP);
2699	PL_diehook = 0;	3092	EXTEND (SP, 2);
2700	SvREFCNT_dec (old);	3093	PUSHs (sv_Coro);
2701	croak ("\3async_pool terminate\2\n");	3094	PUSHs ((SV *)cv_pool_handler);
		3095	PUTBACK;
		3096	call_sv (cv_coro_new, G_SCALAR);
		3097	SPAGAIN;
		3098
		3099	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702	}	3100	}
2703		3101
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	{	3102	{
2717	av_fill (defav, len - 1);	3103	struct coro *coro = SvSTATE_hv (hv);
2718	for (i = 0; i < len; ++i)	3104
2719	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3105	assert (!coro->invoke_cb);
		3106	assert (!coro->invoke_av);
		3107	coro->invoke_cb = SvREFCNT_inc (cb);
		3108	coro->invoke_av = av;
2720	}	3109	}
		3110
		3111	api_ready ((SV *)hv);
		3112
		3113	if (GIMME_V != G_VOID)
		3114	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3115	else
		3116	SvREFCNT_dec (hv);
2721	}	3117	}
		3118
		3119	SV *
		3120	rouse_cb ()
		3121	PROTOTYPE:
		3122	CODE:
		3123	RETVAL = coro_new_rouse_cb (aTHX);
		3124	OUTPUT:
		3125	RETVAL
2722		3126
2723	void	3127	void
2724	_pool_2 (SV *cb)	3128	rouse_wait (...)
		3129	PROTOTYPE: ;$
2725	CODE:	3130	PPCODE:
2726	{	3131	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		3132
2756		3133
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3134	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3135
2759	BOOT:	3136	BOOT:
…		…
2761		3138
2762		3139
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3140	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3141
2765	SV *	3142	SV *
2766	new (SV klass, SV count_ = 0)	3143	new (SV klass, SV count = 0)
2767	CODE:	3144	CODE:
2768	{	3145	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3146	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3147	GvSTASH (CvGV (cv))
2771	SV **ary;	3148	);
		3149	OUTPUT:
		3150	RETVAL
2772		3151
2773	/* unfortunately, building manually saves memory */	3152	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3153	SV *
2775	AvALLOC (av) = ary;	3154	_alloc (int count)
2776	AvARRAY (av) = ary;	3155	CODE:
2777	AvMAX (av) = 1;	3156	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:	3157	OUTPUT:
2784	RETVAL	3158	RETVAL
2785		3159
2786	SV *	3160	SV *
2787	count (SV *self)	3161	count (SV *self)
…		…
2796	adjust = 1	3170	adjust = 1
2797	CODE:	3171	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3172	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3173
2800	void	3174	void
2801	down (SV *self)	3175	down (...)
2802	CODE:	3176	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3177	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3178
		3179	void
		3180	wait (...)
		3181	CODE:
		3182	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3183
2805	void	3184	void
2806	try (SV *self)	3185	try (SV *self)
2807	PPCODE:	3186	PPCODE:
2808	{	3187	{
…		…
2820	XSRETURN_NO;	3199	XSRETURN_NO;
2821	}	3200	}
2822		3201
2823	void	3202	void
2824	waiters (SV *self)	3203	waiters (SV *self)
2825	CODE:	3204	PPCODE:
2826	{	3205	{
2827	AV av = (AV )SvRV (self);	3206	AV av = (AV )SvRV (self);
		3207	int wcount = AvFILLp (av) + 1 - 1;
2828		3208
2829	if (GIMME_V == G_SCALAR)	3209	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3210	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3211	else
2832	{	3212	{
2833	int i;	3213	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3214	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3215	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3216	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3217	}
2838	}	3218	}
		3219
		3220	MODULE = Coro::State PACKAGE = Coro::Signal
		3221
		3222	SV *
		3223	new (SV *klass)
		3224	CODE:
		3225	RETVAL = sv_bless (
		3226	coro_waitarray_new (aTHX_ 0),
		3227	GvSTASH (CvGV (cv))
		3228	);
		3229	OUTPUT:
		3230	RETVAL
		3231
		3232	void
		3233	wait (...)
		3234	CODE:
		3235	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3236
		3237	void
		3238	broadcast (SV *self)
		3239	CODE:
		3240	{
		3241	AV av = (AV )SvRV (self);
		3242	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3243	}
		3244
		3245	void
		3246	send (SV *self)
		3247	CODE:
		3248	{
		3249	AV av = (AV )SvRV (self);
		3250
		3251	if (AvFILLp (av))
		3252	coro_signal_wake (aTHX_ av, 1);
		3253	else
		3254	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3255	}
		3256
		3257	IV
		3258	awaited (SV *self)
		3259	CODE:
		3260	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3261	OUTPUT:
		3262	RETVAL
2839		3263
2840		3264
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3265	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3266
2843	BOOT:	3267	BOOT:
…		…
2871		3295
2872	void	3296	void
2873	_register (char target, char proto, SV *req)	3297	_register (char target, char proto, SV *req)
2874	CODE:	3298	CODE:
2875	{	3299	{
2876	HV *st;	3300	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 */	3301	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3302	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3303	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3304	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3305	}

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+Removed lines
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Comparing Coro/Coro/State.xs (file contents): Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs. Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs.
Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC