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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.297 by root, Tue Nov 18 11:04:42 2008 UTC vs.
Revision 1.322 by root, Sat Nov 22 05:13:34 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
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
167	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
168	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
169	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
170	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180
172	static GV *irsgv; /* $/ */	181	static GV *irsgv; /* $/ */
173	static GV *stdoutgv; /* *STDOUT */	182	static GV *stdoutgv; /* *STDOUT */
174	static SV *rv_diehook;	183	static SV *rv_diehook;
175	static SV *rv_warnhook;	184	static SV *rv_warnhook;
176	static HV *hv_sig; /* %SIG */	185	static HV *hv_sig; /* %SIG */
177		186
178	/* async_pool helper stuff */	187	/* async_pool helper stuff */
179	static SV *sv_pool_rss;	188	static SV *sv_pool_rss;
180	static SV *sv_pool_size;	189	static SV *sv_pool_size;
		190	static SV *sv_async_pool_idle; /* description string */
181	static AV *av_async_pool;	191	static AV *av_async_pool; /* idle pool */
		192	static SV *sv_Coro; /* class string */
		193	static CV *cv_pool_handler;
		194	static CV *cv_coro_state_new;
182		195
183	/* Coro::AnyEvent */	196	/* Coro::AnyEvent */
184	static SV *sv_activity;	197	static SV *sv_activity;
185		198
186	static struct coro_cctx *cctx_first;	199	static struct coro_cctx *cctx_first;
…		…
215	int valgrind_id;	228	int valgrind_id;
216	#endif	229	#endif
217	unsigned char flags;	230	unsigned char flags;
218	} coro_cctx;	231	} coro_cctx;
219		232
		233	coro_cctx *cctx_current; /* the currently running cctx */
		234
		235	/*****************************************************************************/
		236
220	enum {	237	enum {
221	CF_RUNNING = 0x0001, /* coroutine is running */	238	CF_RUNNING = 0x0001, /* coroutine is running */
222	CF_READY = 0x0002, /* coroutine is ready */	239	CF_READY = 0x0002, /* coroutine is ready */
223	CF_NEW = 0x0004, /* has never been switched to */	240	CF_NEW = 0x0004, /* has never been switched to */
224	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	241	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
246	/* state data */	263	/* state data */
247	struct CoroSLF slf_frame; /* saved slf frame */	264	struct CoroSLF slf_frame; /* saved slf frame */
248	AV *mainstack;	265	AV *mainstack;
249	perl_slots *slot; /* basically the saved sp */	266	perl_slots *slot; /* basically the saved sp */
250		267
		268	CV *startcv; /* the CV to execute */
251	AV *args; /* data associated with this coroutine (initial args) */	269	AV *args; /* data associated with this coroutine (initial args) */
252	int refcnt; /* coroutines are refcounted, yes */	270	int refcnt; /* coroutines are refcounted, yes */
253	int flags; /* CF_ flags */	271	int flags; /* CF_ flags */
254	HV *hv; /* the perl hash associated with this coro, if any */	272	HV *hv; /* the perl hash associated with this coro, if any */
255	void (*on_destroy)(pTHX_ struct coro *coro);	273	void (*on_destroy)(pTHX_ struct coro *coro);
256		274
257	/* statistics */	275	/* statistics */
258	int usecount; /* number of transfers to this coro */	276	int usecount; /* number of transfers to this coro */
259		277
260	/* coro process data */	278	/* coro process data */
261	int prio;	279	int prio;
262	SV *except; /* exception to be thrown */	280	SV *except; /* exception to be thrown */
		281	SV *rouse_cb;
263		282
264	/* async_pool */	283	/* async_pool */
265	SV *saved_deffh;	284	SV *saved_deffh;
		285	SV *invoke_cb;
		286	AV *invoke_av;
266		287
267	/* linked list */	288	/* linked list */
268	struct coro *next, *prev;	289	struct coro *next, *prev;
269	};	290	};
270		291
…		…
287		308
288	/* for Coro.pm */	309	/* for Coro.pm */
289	static SV *coro_current;	310	static SV *coro_current;
290	static SV *coro_readyhook;	311	static SV *coro_readyhook;
291	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	312	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		313	static CV *cv_coro_run, *cv_coro_terminate;
292	static struct coro *coro_first;	314	static struct coro *coro_first;
293	#define coro_nready coroapi.nready	315	#define coro_nready coroapi.nready
294		316
295	/** lowlevel stuff **********************************************************/	317	/** lowlevel stuff **********************************************************/
296		318
…		…
322	get_hv (name, create);	344	get_hv (name, create);
323	#endif	345	#endif
324	return get_hv (name, create);	346	return get_hv (name, create);
325	}	347	}
326		348
		349	/* may croak */
		350	INLINE CV *
		351	coro_sv_2cv (pTHX_ SV *sv)
		352	{
		353	HV *st;
		354	GV *gvp;
		355	return sv_2cv (sv, &st, &gvp, 0);
		356	}
		357
327	static AV *	358	static AV *
328	coro_clone_padlist (pTHX_ CV *cv)	359	coro_derive_padlist (pTHX_ CV *cv)
329	{	360	{
330	AV *padlist = CvPADLIST (cv);	361	AV *padlist = CvPADLIST (cv);
331	AV *newpadlist, *newpad;	362	AV *newpadlist, *newpad;
332		363
333	newpadlist = newAV ();	364	newpadlist = newAV ();
…		…
448	else	479	else
449	{	480	{
450	#if CORO_PREFER_PERL_FUNCTIONS	481	#if CORO_PREFER_PERL_FUNCTIONS
451	/* this is probably cleaner? but also slower! */	482	/* this is probably cleaner? but also slower! */
452	/* in practise, it seems to be less stable */	483	/* in practise, it seems to be less stable */
453	CV *cp = Perl_cv_clone (cv);	484	CV *cp = Perl_cv_clone (aTHX_ cv);
454	CvPADLIST (cv) = CvPADLIST (cp);	485	CvPADLIST (cv) = CvPADLIST (cp);
455	CvPADLIST (cp) = 0;	486	CvPADLIST (cp) = 0;
456	SvREFCNT_dec (cp);	487	SvREFCNT_dec (cp);
457	#else	488	#else
458	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	489	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
459	#endif	490	#endif
460	}	491	}
461	}	492	}
462		493
463	static void	494	static void
…		…
602	* of perl.c:init_stacks, except that it uses less memory	633	* of perl.c:init_stacks, except that it uses less memory
603	* on the (sometimes correct) assumption that coroutines do	634	* on the (sometimes correct) assumption that coroutines do
604	* not usually need a lot of stackspace.	635	* not usually need a lot of stackspace.
605	*/	636	*/
606	#if CORO_PREFER_PERL_FUNCTIONS	637	#if CORO_PREFER_PERL_FUNCTIONS
607	# define coro_init_stacks init_stacks	638	# define coro_init_stacks(thx) init_stacks ()
608	#else	639	#else
609	static void	640	static void
610	coro_init_stacks (pTHX)	641	coro_init_stacks (pTHX)
611	{	642	{
612	PL_curstackinfo = new_stackinfo(32, 8);	643	PL_curstackinfo = new_stackinfo(32, 8);
…		…
675	#if !PERL_VERSION_ATLEAST (5,10,0)	706	#if !PERL_VERSION_ATLEAST (5,10,0)
676	Safefree (PL_retstack);	707	Safefree (PL_retstack);
677	#endif	708	#endif
678	}	709	}
679		710
		711	#define CORO_RSS \
		712	rss += sizeof (SYM (curstackinfo)); \
		713	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		714	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		715	rss += SYM (tmps_max) * sizeof (SV *); \
		716	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		717	rss += SYM (scopestack_max) * sizeof (I32); \
		718	rss += SYM (savestack_max) * sizeof (ANY);
		719
680	static size_t	720	static size_t
681	coro_rss (pTHX_ struct coro *coro)	721	coro_rss (pTHX_ struct coro *coro)
682	{	722	{
683	size_t rss = sizeof (*coro);	723	size_t rss = sizeof (*coro);
684		724
685	if (coro->mainstack)	725	if (coro->mainstack)
686	{	726	{
687	perl_slots tmp_slot;
688	perl_slots *slot;
689
690	if (coro->flags & CF_RUNNING)	727	if (coro->flags & CF_RUNNING)
691	{	728	{
692	slot = &tmp_slot;	729	#define SYM(sym) PL_ ## sym
693		730	CORO_RSS;
694	#define VAR(name,type) slot->name = PL_ ## name;
695	# include "state.h"
696	#undef VAR	731	#undef SYM
697	}	732	}
698	else	733	else
699	slot = coro->slot;
700
701	if (slot)
702	{	734	{
703	rss += sizeof (slot->curstackinfo);	735	#define SYM(sym) coro->slot->sym
704	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	736	CORO_RSS;
705	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	737	#undef SYM
706	rss += slot->tmps_max * sizeof (SV *);
707	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
708	rss += slot->scopestack_max * sizeof (I32);
709	rss += slot->savestack_max * sizeof (ANY);
710
711	#if !PERL_VERSION_ATLEAST (5,10,0)
712	rss += slot->retstack_max * sizeof (OP *);
713	#endif
714	}	738	}
715	}	739	}
716		740
717	return rss;	741	return rss;
718	}	742	}
…		…
820	slf_check_nop (pTHX_ struct CoroSLF *frame)	844	slf_check_nop (pTHX_ struct CoroSLF *frame)
821	{	845	{
822	return 0;	846	return 0;
823	}	847	}
824		848
		849	static int
		850	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		851	{
		852	return 1;
		853	}
		854
825	static UNOP coro_setup_op;	855	static UNOP coro_setup_op;
826		856
827	static void NOINLINE /* noinline to keep it out of the transfer fast path */	857	static void NOINLINE /* noinline to keep it out of the transfer fast path */
828	coro_setup (pTHX_ struct coro *coro)	858	coro_setup (pTHX_ struct coro *coro)
829	{	859	{
…		…
860	dSP;	890	dSP;
861	UNOP myop;	891	UNOP myop;
862		892
863	Zero (&myop, 1, UNOP);	893	Zero (&myop, 1, UNOP);
864	myop.op_next = Nullop;	894	myop.op_next = Nullop;
		895	myop.op_type = OP_ENTERSUB;
865	myop.op_flags = OPf_WANT_VOID;	896	myop.op_flags = OPf_WANT_VOID;
866		897
867	PUSHMARK (SP);	898	PUSHMARK (SP);
868	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	899	PUSHs ((SV *)coro->startcv);
869	PUTBACK;	900	PUTBACK;
870	PL_op = (OP *)&myop;	901	PL_op = (OP *)&myop;
871	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	902	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
872	SPAGAIN;
873	}	903	}
874		904
875	/* this newly created coroutine might be run on an existing cctx which most	905	/* this newly created coroutine might be run on an existing cctx which most
876	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	906	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
877	*/	907	*/
878	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	908	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
879	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	909	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
880		910
881	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	911	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
882	coro_setup_op.op_next = PL_op;	912	coro_setup_op.op_next = PL_op;
883	coro_setup_op.op_type = OP_CUSTOM;	913	coro_setup_op.op_type = OP_ENTERSUB;
884	coro_setup_op.op_ppaddr = pp_slf;	914	coro_setup_op.op_ppaddr = pp_slf;
885	/* no flags required, as an init function won't be called */	915	/* no flags etc. required, as an init function won't be called */
886		916
887	PL_op = (OP *)&coro_setup_op;	917	PL_op = (OP *)&coro_setup_op;
888		918
889	/* copy throw, in case it was set before coro_setup */	919	/* copy throw, in case it was set before coro_setup */
890	CORO_THROW = coro->except;	920	CORO_THROW = coro->except;
…		…
919		949
920	SvREFCNT_dec (PL_diehook);	950	SvREFCNT_dec (PL_diehook);
921	SvREFCNT_dec (PL_warnhook);	951	SvREFCNT_dec (PL_warnhook);
922		952
923	SvREFCNT_dec (coro->saved_deffh);	953	SvREFCNT_dec (coro->saved_deffh);
924	SvREFCNT_dec (CORO_THROW);	954	SvREFCNT_dec (coro->rouse_cb);
		955	SvREFCNT_dec (coro->invoke_cb);
		956	SvREFCNT_dec (coro->invoke_av);
925		957
926	coro_destruct_stacks (aTHX);	958	coro_destruct_stacks (aTHX);
927	}	959	}
928		960
929	INLINE void	961	INLINE void
…		…
1001	{	1033	{
1002	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1034	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1003		1035
1004	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1036	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1005	{	1037	{
1006	runops_proc_t old_runops = PL_runops;
1007	dSP;	1038	dSP;
1008	GV *gv = CvGV (cx->blk_sub.cv);	1039	GV *gv = CvGV (cx->blk_sub.cv);
1009	SV *fullname = sv_2mortal (newSV (0));	1040	SV *fullname = sv_2mortal (newSV (0));
1010		1041
1011	if (isGV (gv))	1042	if (isGV (gv))
…		…
1016	SAVETMPS;	1047	SAVETMPS;
1017	EXTEND (SP, 3);	1048	EXTEND (SP, 3);
1018	PUSHMARK (SP);	1049	PUSHMARK (SP);
1019	PUSHs (&PL_sv_yes);	1050	PUSHs (&PL_sv_yes);
1020	PUSHs (fullname);	1051	PUSHs (fullname);
1021	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1052	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1022	PUTBACK;	1053	PUTBACK;
1023	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1054	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1024	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1055	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1025	SPAGAIN;	1056	SPAGAIN;
1026	FREETMPS;	1057	FREETMPS;
…		…
1058		1089
1059	TAINT_NOT;	1090	TAINT_NOT;
1060	return 0;	1091	return 0;
1061	}	1092	}
1062		1093
1063	static struct coro_cctx *cctx_ssl_cctx;
1064	static struct CoroSLF cctx_ssl_frame;	1094	static struct CoroSLF cctx_ssl_frame;
1065		1095
1066	static void	1096	static void
1067	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1097	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1068	{	1098	{
1069	ta->prev = (struct coro *)cctx_ssl_cctx;
1070	ta->next = 0;	1099	ta->prev = 0;
1071	}	1100	}
1072		1101
1073	static int	1102	static int
1074	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1103	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1075	{	1104	{
…		…
1078	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1107	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1079	}	1108	}
1080		1109
1081	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1110	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1082	static void NOINLINE	1111	static void NOINLINE
1083	cctx_prepare (pTHX_ coro_cctx *cctx)	1112	cctx_prepare (pTHX)
1084	{	1113	{
1085	PL_top_env = &PL_start_env;	1114	PL_top_env = &PL_start_env;
1086		1115
1087	if (cctx->flags & CC_TRACE)	1116	if (cctx_current->flags & CC_TRACE)
1088	PL_runops = runops_trace;	1117	PL_runops = runops_trace;
1089		1118
1090	/* we already must be executing an SLF op, there is no other valid way	1119	/* we already must be executing an SLF op, there is no other valid way
1091	* that can lead to creation of a new cctx */	1120	* that can lead to creation of a new cctx */
1092	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1121	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1093	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1122	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1094		1123
1095	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1124	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1096	cctx_ssl_cctx = cctx;
1097	cctx_ssl_frame = slf_frame;	1125	cctx_ssl_frame = slf_frame;
1098		1126
1099	slf_frame.prepare = slf_prepare_set_stacklevel;	1127	slf_frame.prepare = slf_prepare_set_stacklevel;
1100	slf_frame.check = slf_check_set_stacklevel;	1128	slf_frame.check = slf_check_set_stacklevel;
1101	}	1129	}
…		…
1124	/* normally we would need to skip the entersub here */	1152	/* normally we would need to skip the entersub here */
1125	/* not doing so will re-execute it, which is exactly what we want */	1153	/* not doing so will re-execute it, which is exactly what we want */
1126	/* PL_nop = PL_nop->op_next */	1154	/* PL_nop = PL_nop->op_next */
1127		1155
1128	/* inject a fake subroutine call to cctx_init */	1156	/* inject a fake subroutine call to cctx_init */
1129	cctx_prepare (aTHX_ (coro_cctx *)arg);	1157	cctx_prepare (aTHX);
1130		1158
1131	/* cctx_run is the alternative tail of transfer() */	1159	/* cctx_run is the alternative tail of transfer() */
1132	transfer_tail (aTHX);	1160	transfer_tail (aTHX);
1133		1161
1134	/* somebody or something will hit me for both perl_run and PL_restartop */	1162	/* somebody or something will hit me for both perl_run and PL_restartop */
1135	PL_restartop = PL_op;	1163	PL_restartop = PL_op;
1136	perl_run (PL_curinterp);	1164	perl_run (PL_curinterp);
		1165	/*
		1166	* Unfortunately, there is no way to get at the return values of the
		1167	* coro body here, as perl_run destroys these
		1168	*/
1137		1169
1138	/*	1170	/*
1139	* If perl-run returns we assume exit() was being called or the coro	1171	* If perl-run returns we assume exit() was being called or the coro
1140	* fell off the end, which seems to be the only valid (non-bug)	1172	* fell off the end, which seems to be the only valid (non-bug)
1141	* reason for perl_run to return. We try to exit by jumping to the	1173	* reason for perl_run to return. We try to exit by jumping to the
…		…
1225	cctx_destroy (coro_cctx *cctx)	1257	cctx_destroy (coro_cctx *cctx)
1226	{	1258	{
1227	if (!cctx)	1259	if (!cctx)
1228	return;	1260	return;
1229		1261
		1262	assert (cctx != cctx_current);//D temporary
		1263
1230	--cctx_count;	1264	--cctx_count;
1231	coro_destroy (&cctx->cctx);	1265	coro_destroy (&cctx->cctx);
1232		1266
1233	/* coro_transfer creates new, empty cctx's */	1267	/* coro_transfer creates new, empty cctx's */
1234	if (cctx->sptr)	1268	if (cctx->sptr)
…		…
1319	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1353	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1320	{	1354	{
1321	dSTACKLEVEL;	1355	dSTACKLEVEL;
1322		1356
1323	/* sometimes transfer is only called to set idle_sp */	1357	/* sometimes transfer is only called to set idle_sp */
1324	if (expect_false (!next))	1358	if (expect_false (!prev))
1325	{	1359	{
1326	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1360	cctx_current->idle_sp = STACKLEVEL;
1327	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1361	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1328	}	1362	}
1329	else if (expect_true (prev != next))	1363	else if (expect_true (prev != next))
1330	{	1364	{
1331	coro_cctx *prev__cctx;	1365	coro_cctx *cctx_prev;
1332		1366
1333	if (expect_false (prev->flags & CF_NEW))	1367	if (expect_false (prev->flags & CF_NEW))
1334	{	1368	{
1335	/* create a new empty/source context */	1369	/* create a new empty/source context */
1336	prev->cctx = cctx_new_empty ();
1337	prev->flags &= ~CF_NEW;	1370	prev->flags &= ~CF_NEW;
1338	prev->flags |= CF_RUNNING;	1371	prev->flags |= CF_RUNNING;
1339	}	1372	}
1340		1373
1341	prev->flags &= ~CF_RUNNING;	1374	prev->flags &= ~CF_RUNNING;
…		…
1352	coro_setup (aTHX_ next);	1385	coro_setup (aTHX_ next);
1353	}	1386	}
1354	else	1387	else
1355	load_perl (aTHX_ next);	1388	load_perl (aTHX_ next);
1356		1389
1357	prev__cctx = prev->cctx;
1358
1359	/* possibly untie and reuse the cctx */	1390	/* possibly untie and reuse the cctx */
1360	if (expect_true (	1391	if (expect_true (
1361	prev__cctx->idle_sp == STACKLEVEL	1392	cctx_current->idle_sp == STACKLEVEL
1362	&& !(prev__cctx->flags & CC_TRACE)	1393	&& !(cctx_current->flags & CC_TRACE)
1363	&& !force_cctx	1394	&& !force_cctx
1364	))	1395	))
1365	{	1396	{
1366	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1397	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1367	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1398	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1368
1369	prev->cctx = 0;
1370		1399
1371	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1400	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1372	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1401	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1373	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1402	if (expect_false (CCTX_EXPIRED (cctx_current)))
1374	if (!next->cctx)	1403	if (!next->cctx)
1375	next->cctx = cctx_get (aTHX);	1404	next->cctx = cctx_get (aTHX);
1376		1405
1377	cctx_put (prev__cctx);	1406	cctx_put (cctx_current);
		1407	assert (!prev->cctx);//D temporary
1378	}	1408	}
		1409	else
		1410	prev->cctx = cctx_current;
1379		1411
1380	++next->usecount;	1412	++next->usecount;
1381		1413
1382	if (expect_true (!next->cctx))	1414	cctx_prev = cctx_current;
1383	next->cctx = cctx_get (aTHX);	1415	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1384		1416
1385	if (expect_false (prev__cctx != next->cctx))	1417	next->cctx = 0;
		1418
		1419	if (expect_false (cctx_prev != cctx_current))
1386	{	1420	{
1387	prev__cctx->top_env = PL_top_env;	1421	cctx_prev->top_env = PL_top_env;
1388	PL_top_env = next->cctx->top_env;	1422	PL_top_env = cctx_current->top_env;
1389	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1423	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1390	}	1424	}
1391		1425
1392	transfer_tail (aTHX);	1426	transfer_tail (aTHX);
1393	}	1427	}
1394	}	1428	}
…		…
1433		1467
1434	coro->slot = 0;	1468	coro->slot = 0;
1435	}	1469	}
1436		1470
1437	cctx_destroy (coro->cctx);	1471	cctx_destroy (coro->cctx);
		1472	SvREFCNT_dec (coro->startcv);
1438	SvREFCNT_dec (coro->args);	1473	SvREFCNT_dec (coro->args);
		1474	SvREFCNT_dec (CORO_THROW);
1439		1475
1440	if (coro->next) coro->next->prev = coro->prev;	1476	if (coro->next) coro->next->prev = coro->prev;
1441	if (coro->prev) coro->prev->next = coro->next;	1477	if (coro->prev) coro->prev->next = coro->next;
1442	if (coro == coro_first) coro_first = coro->next;	1478	if (coro == coro_first) coro_first = coro->next;
1443		1479
…		…
1497		1533
1498	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1534	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499	TRANSFER (ta, 1);	1535	TRANSFER (ta, 1);
1500	}	1536	}
1501		1537
		1538	/*****************************************************************************/
		1539	/* gensub: simple closure generation utility */
		1540
		1541	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1542
		1543	/* create a closure from XS, returns a code reference */
		1544	/* the arg can be accessed via GENSUB_ARG from the callback */
		1545	/* the callback must use dXSARGS/XSRETURN */
		1546	static SV *
		1547	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
		1548	{
		1549	CV *cv = (CV *)newSV (0);
		1550
		1551	sv_upgrade ((SV *)cv, SVt_PVCV);
		1552
		1553	CvANON_on (cv);
		1554	CvISXSUB_on (cv);
		1555	CvXSUB (cv) = xsub;
		1556	GENSUB_ARG = arg;
		1557
		1558	return newRV_noinc ((SV *)cv);
		1559	}
		1560
1502	/** Coro ********************************************************************/	1561	/** Coro ********************************************************************/
1503		1562
1504	INLINE void	1563	INLINE void
1505	coro_enq (pTHX_ struct coro *coro)	1564	coro_enq (pTHX_ struct coro *coro)
1506	{	1565	{
…		…
1567	api_is_ready (pTHX_ SV *coro_sv)	1626	api_is_ready (pTHX_ SV *coro_sv)
1568	{	1627	{
1569	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1628	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1570	}	1629	}
1571		1630
		1631	/* expects to own a reference to next->hv */
1572	INLINE void	1632	INLINE void
		1633	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
		1634	{
		1635	SV *prev_sv = SvRV (coro_current);
		1636
		1637	ta->prev = SvSTATE_hv (prev_sv);
		1638	ta->next = next;
		1639
		1640	TRANSFER_CHECK (*ta);
		1641
		1642	SvRV_set (coro_current, (SV *)next->hv);
		1643
		1644	free_coro_mortal (aTHX);
		1645	coro_mortal = prev_sv;
		1646	}
		1647
		1648	static void
1573	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1649	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1574	{	1650	{
1575	SV *prev_sv, *next_sv;
1576
1577	for (;;)	1651	for (;;)
1578	{	1652	{
1579	next_sv = coro_deq (aTHX);	1653	SV *next_sv = coro_deq (aTHX);
1580		1654
1581	/* nothing to schedule: call the idle handler */
1582	if (expect_false (!next_sv))	1655	if (expect_true (next_sv))
1583	{	1656	{
		1657	struct coro *next = SvSTATE_hv (next_sv);
		1658
		1659	/* cannot transfer to destroyed coros, skip and look for next */
		1660	if (expect_false (next->flags & CF_DESTROYED))
		1661	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1662	else
		1663	{
		1664	next->flags &= ~CF_READY;
		1665	--coro_nready;
		1666
		1667	prepare_schedule_to (aTHX_ ta, next);
		1668	break;
		1669	}
		1670	}
		1671	else
		1672	{
		1673	/* nothing to schedule: call the idle handler */
1584	dSP;	1674	dSP;
1585		1675
1586	ENTER;	1676	ENTER;
1587	SAVETMPS;	1677	SAVETMPS;
1588		1678
…		…
1590	PUTBACK;	1680	PUTBACK;
1591	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1681	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1592		1682
1593	FREETMPS;	1683	FREETMPS;
1594	LEAVE;	1684	LEAVE;
1595	continue;
1596	}	1685	}
1597
1598	ta->next = SvSTATE_hv (next_sv);
1599
1600	/* cannot transfer to destroyed coros, skip and look for next */
1601	if (expect_false (ta->next->flags & CF_DESTROYED))
1602	{
1603	SvREFCNT_dec (next_sv);
1604	/* coro_nready has already been taken care of by destroy */
1605	continue;
1606	}
1607
1608	--coro_nready;
1609	break;
1610	}	1686	}
1611
1612	/* free this only after the transfer */
1613	prev_sv = SvRV (coro_current);
1614	ta->prev = SvSTATE_hv (prev_sv);
1615	TRANSFER_CHECK (*ta);
1616	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1617	ta->next->flags &= ~CF_READY;
1618	SvRV_set (coro_current, next_sv);
1619
1620	free_coro_mortal (aTHX);
1621	coro_mortal = prev_sv;
1622	}	1687	}
1623		1688
1624	INLINE void	1689	INLINE void
1625	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1690	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1626	{	1691	{
…		…
1647	{	1712	{
1648	struct coro_transfer_args ta;	1713	struct coro_transfer_args ta;
1649		1714
1650	prepare_schedule (aTHX_ &ta);	1715	prepare_schedule (aTHX_ &ta);
1651	TRANSFER (ta, 1);	1716	TRANSFER (ta, 1);
		1717	}
		1718
		1719	static void
		1720	api_schedule_to (pTHX_ SV *coro_sv)
		1721	{
		1722	struct coro_transfer_args ta;
		1723	struct coro *next = SvSTATE (coro_sv);
		1724
		1725	SvREFCNT_inc_NN (coro_sv);
		1726	prepare_schedule_to (aTHX_ &ta, next);
1652	}	1727	}
1653		1728
1654	static int	1729	static int
1655	api_cede (pTHX)	1730	api_cede (pTHX)
1656	{	1731	{
…		…
1703	if (coro->flags & CF_RUNNING)	1778	if (coro->flags & CF_RUNNING)
1704	PL_runops = RUNOPS_DEFAULT;	1779	PL_runops = RUNOPS_DEFAULT;
1705	else	1780	else
1706	coro->slot->runops = RUNOPS_DEFAULT;	1781	coro->slot->runops = RUNOPS_DEFAULT;
1707	}	1782	}
		1783	}
		1784
		1785	static void
		1786	coro_call_on_destroy (pTHX_ struct coro *coro)
		1787	{
		1788	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1789	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1790
		1791	if (on_destroyp)
		1792	{
		1793	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1794
		1795	while (AvFILLp (on_destroy) >= 0)
		1796	{
		1797	dSP; /* don't disturb outer sp */
		1798	SV *cb = av_pop (on_destroy);
		1799
		1800	PUSHMARK (SP);
		1801
		1802	if (statusp)
		1803	{
		1804	int i;
		1805	AV *status = (AV *)SvRV (*statusp);
		1806	EXTEND (SP, AvFILLp (status) + 1);
		1807
		1808	for (i = 0; i <= AvFILLp (status); ++i)
		1809	PUSHs (AvARRAY (status)[i]);
		1810	}
		1811
		1812	PUTBACK;
		1813	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1814	}
		1815	}
		1816	}
		1817
		1818	static void
		1819	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1820	{
		1821	int i;
		1822	HV *hv = (HV *)SvRV (coro_current);
		1823	AV *av = newAV ();
		1824
		1825	av_extend (av, items - 1);
		1826	for (i = 0; i < items; ++i)
		1827	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1828
		1829	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1830
		1831	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1832	api_ready (aTHX_ sv_manager);
		1833
		1834	frame->prepare = prepare_schedule;
		1835	frame->check = slf_check_repeat;
		1836	}
		1837
		1838	/*****************************************************************************/
		1839	/* async pool handler */
		1840
		1841	static int
		1842	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1843	{
		1844	HV *hv = (HV *)SvRV (coro_current);
		1845	struct coro *coro = (struct coro *)frame->data;
		1846
		1847	if (!coro->invoke_cb)
		1848	return 1; /* loop till we have invoke */
		1849	else
		1850	{
		1851	hv_store (hv, "desc", sizeof ("desc") - 1,
		1852	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1853
		1854	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1855
		1856	{
		1857	dSP;
		1858	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1859	PUTBACK;
		1860	}
		1861
		1862	SvREFCNT_dec (GvAV (PL_defgv));
		1863	GvAV (PL_defgv) = coro->invoke_av;
		1864	coro->invoke_av = 0;
		1865
		1866	return 0;
		1867	}
		1868	}
		1869
		1870	static void
		1871	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1872	{
		1873	HV *hv = (HV *)SvRV (coro_current);
		1874	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1875
		1876	if (expect_true (coro->saved_deffh))
		1877	{
		1878	/* subsequent iteration */
		1879	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1880	coro->saved_deffh = 0;
		1881
		1882	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1883	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1884	{
		1885	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1886	coro->invoke_av = newAV ();
		1887
		1888	frame->prepare = prepare_nop;
		1889	}
		1890	else
		1891	{
		1892	av_clear (GvAV (PL_defgv));
		1893	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1894
		1895	coro->prio = 0;
		1896
		1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1898	api_trace (aTHX_ coro_current, 0);
		1899
		1900	frame->prepare = prepare_schedule;
		1901	av_push (av_async_pool, SvREFCNT_inc (hv));
		1902	}
		1903	}
		1904	else
		1905	{
		1906	/* first iteration, simply fall through */
		1907	frame->prepare = prepare_nop;
		1908	}
		1909
		1910	frame->check = slf_check_pool_handler;
		1911	frame->data = (void *)coro;
		1912	}
		1913
		1914	/*****************************************************************************/
		1915	/* rouse callback */
		1916
		1917	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1918
		1919	static void
		1920	coro_rouse_callback (pTHX_ CV *cv)
		1921	{
		1922	dXSARGS;
		1923	SV *data = (SV *)GENSUB_ARG;
		1924
		1925	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1926	{
		1927	/* first call, set args */
		1928	AV *av = newAV ();
		1929	SV *coro = SvRV (data);
		1930
		1931	SvRV_set (data, (SV *)av);
		1932	api_ready (aTHX_ coro);
		1933	SvREFCNT_dec (coro);
		1934
		1935	/* better take a full copy of the arguments */
		1936	while (items--)
		1937	av_store (av, items, newSVsv (ST (items)));
		1938	}
		1939
		1940	XSRETURN_EMPTY;
		1941	}
		1942
		1943	static int
		1944	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1945	{
		1946	SV *data = (SV *)frame->data;
		1947
		1948	if (CORO_THROW)
		1949	return 0;
		1950
		1951	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1952	return 1;
		1953
		1954	/* now push all results on the stack */
		1955	{
		1956	dSP;
		1957	AV *av = (AV *)SvRV (data);
		1958	int i;
		1959
		1960	EXTEND (SP, AvFILLp (av) + 1);
		1961	for (i = 0; i <= AvFILLp (av); ++i)
		1962	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1963
		1964	/* we have stolen the elements, so ste length to zero and free */
		1965	AvFILLp (av) = -1;
		1966	av_undef (av);
		1967
		1968	PUTBACK;
		1969	}
		1970
		1971	return 0;
		1972	}
		1973
		1974	static void
		1975	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1976	{
		1977	SV *cb;
		1978
		1979	if (items)
		1980	cb = arg [0];
		1981	else
		1982	{
		1983	struct coro *coro = SvSTATE_current;
		1984
		1985	if (!coro->rouse_cb)
		1986	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1987
		1988	cb = sv_2mortal (coro->rouse_cb);
		1989	coro->rouse_cb = 0;
		1990	}
		1991
		1992	if (!SvROK (cb)
		1993	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		1994	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1995	croak ("Coro::rouse_wait called with illegal callback argument,");
		1996
		1997	{
		1998	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		1999	SV *data = (SV *)GENSUB_ARG;
		2000
		2001	frame->data = (void *)data;
		2002	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2003	frame->check = slf_check_rouse_wait;
		2004	}
		2005	}
		2006
		2007	static SV *
		2008	coro_new_rouse_cb (pTHX)
		2009	{
		2010	HV *hv = (HV *)SvRV (coro_current);
		2011	struct coro *coro = SvSTATE_hv (hv);
		2012	SV *data = newRV_inc ((SV *)hv);
		2013	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		2014
		2015	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2016	SvREFCNT_dec (data); /* magicext increases the refcount */
		2017
		2018	SvREFCNT_dec (coro->rouse_cb);
		2019	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2020
		2021	return cb;
1708	}	2022	}
1709		2023
1710	/*****************************************************************************/	2024	/*****************************************************************************/
1711	/* schedule-like-function opcode (SLF) */	2025	/* schedule-like-function opcode (SLF) */
1712		2026
…		…
1759	static void	2073	static void
1760	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2074	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1761	{	2075	{
1762	frame->prepare = prepare_schedule;	2076	frame->prepare = prepare_schedule;
1763	frame->check = slf_check_nop;	2077	frame->check = slf_check_nop;
		2078	}
		2079
		2080	static void
		2081	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2082	{
		2083	struct coro *next = (struct coro *)slf_frame.data;
		2084
		2085	SvREFCNT_inc_NN (next->hv);
		2086	prepare_schedule_to (aTHX_ ta, next);
		2087	}
		2088
		2089	static void
		2090	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2091	{
		2092	if (!items)
		2093	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2094
		2095	frame->data = (void *)SvSTATE (arg [0]);
		2096	frame->prepare = slf_prepare_schedule_to;
		2097	frame->check = slf_check_nop;
		2098	}
		2099
		2100	static void
		2101	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2102	{
		2103	api_ready (aTHX_ SvRV (coro_current));
		2104
		2105	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1764	}	2106	}
1765		2107
1766	static void	2108	static void
1767	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2109	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1768	{	2110	{
…		…
1914	}	2256	}
1915	else	2257	else
1916	slf_argc = 0;	2258	slf_argc = 0;
1917		2259
1918	PL_op->op_ppaddr = pp_slf;	2260	PL_op->op_ppaddr = pp_slf;
1919	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2261	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1920		2262
1921	PL_op = (OP *)&slf_restore;	2263	PL_op = (OP *)&slf_restore;
1922	}	2264	}
1923		2265
1924	/*****************************************************************************/	2266	/*****************************************************************************/
…		…
1995	PerlIOBuf_get_cnt,	2337	PerlIOBuf_get_cnt,
1996	PerlIOBuf_set_ptrcnt,	2338	PerlIOBuf_set_ptrcnt,
1997	};	2339	};
1998		2340
1999	/*****************************************************************************/	2341	/*****************************************************************************/
		2342	/* Coro::Semaphore & Coro::Signal */
		2343
		2344	static SV *
		2345	coro_waitarray_new (pTHX_ int count)
		2346	{
		2347	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2348	AV *av = newAV ();
		2349	SV **ary;
		2350
		2351	/* unfortunately, building manually saves memory */
		2352	Newx (ary, 2, SV *);
		2353	AvALLOC (av) = ary;
		2354	/*AvARRAY (av) = ary;*/
		2355	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2356	AvMAX (av) = 1;
		2357	AvFILLp (av) = 0;
		2358	ary [0] = newSViv (count);
		2359
		2360	return newRV_noinc ((SV *)av);
		2361	}
		2362
2000	/* Coro::Semaphore */	2363	/* semaphore */
2001		2364
2002	static void	2365	static void
2003	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2366	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2004	{	2367	{
2005	SV *count_sv = AvARRAY (av)[0];	2368	SV *count_sv = AvARRAY (av)[0];
…		…
2017	AvARRAY (av)[0] = AvARRAY (av)[1];	2380	AvARRAY (av)[0] = AvARRAY (av)[1];
2018	AvARRAY (av)[1] = count_sv;	2381	AvARRAY (av)[1] = count_sv;
2019	cb = av_shift (av);	2382	cb = av_shift (av);
2020		2383
2021	if (SvOBJECT (cb))	2384	if (SvOBJECT (cb))
		2385	{
2022	api_ready (aTHX_ cb);	2386	api_ready (aTHX_ cb);
2023	else	2387	--count;
2024	croak ("callbacks not yet supported");	2388	}
		2389	else if (SvTYPE (cb) == SVt_PVCV)
		2390	{
		2391	dSP;
		2392	PUSHMARK (SP);
		2393	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2394	PUTBACK;
		2395	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2396	}
2025		2397
2026	SvREFCNT_dec (cb);	2398	SvREFCNT_dec (cb);
2027
2028	--count;
2029	}	2399	}
2030	}	2400	}
2031		2401
2032	static void	2402	static void
2033	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2403	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2035	/* call $sem->adjust (0) to possibly wake up some other waiters */	2405	/* call $sem->adjust (0) to possibly wake up some other waiters */
2036	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2406	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2037	}	2407	}
2038		2408
2039	static int	2409	static int
2040	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2410	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2041	{	2411	{
2042	AV *av = (AV *)frame->data;	2412	AV *av = (AV *)frame->data;
2043	SV *count_sv = AvARRAY (av)[0];	2413	SV *count_sv = AvARRAY (av)[0];
2044		2414
2045	/* if we are about to throw, don't actually acquire the lock, just throw */	2415	/* if we are about to throw, don't actually acquire the lock, just throw */
2046	if (CORO_THROW)	2416	if (CORO_THROW)
2047	return 0;	2417	return 0;
2048	else if (SvIVX (count_sv) > 0)	2418	else if (SvIVX (count_sv) > 0)
2049	{	2419	{
2050	SvSTATE_current->on_destroy = 0;	2420	SvSTATE_current->on_destroy = 0;
		2421
		2422	if (acquire)
2051	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2423	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2424	else
		2425	coro_semaphore_adjust (aTHX_ av, 0);
		2426
2052	return 0;	2427	return 0;
2053	}	2428	}
2054	else	2429	else
2055	{	2430	{
2056	int i;	2431	int i;
…		…
2065	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2440	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2066	return 1;	2441	return 1;
2067	}	2442	}
2068	}	2443	}
2069		2444
2070	static void	2445	static int
		2446	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2447	{
		2448	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2449	}
		2450
		2451	static int
		2452	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2453	{
		2454	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2455	}
		2456
		2457	static void
2071	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2458	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2072	{	2459	{
2073	AV *av = (AV *)SvRV (arg [0]);	2460	AV *av = (AV *)SvRV (arg [0]);
2074		2461
2075	if (SvIVX (AvARRAY (av)[0]) > 0)	2462	if (SvIVX (AvARRAY (av)[0]) > 0)
2076	{	2463	{
…		…
2086		2473
2087	/* to avoid race conditions when a woken-up coro gets terminated */	2474	/* to avoid race conditions when a woken-up coro gets terminated */
2088	/* we arrange for a temporary on_destroy that calls adjust (0) */	2475	/* we arrange for a temporary on_destroy that calls adjust (0) */
2089	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2476	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090	}	2477	}
		2478	}
2091		2479
		2480	static void
		2481	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2482	{
		2483	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092	frame->check = slf_check_semaphore_down;	2484	frame->check = slf_check_semaphore_down;
2093
2094	}	2485	}
2095		2486
2096	/*****************************************************************************/	2487	static void
2097	/* gensub: simple closure generation utility */	2488	slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2098
2099	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2100
2101	/* create a closure from XS, returns a code reference */
2102	/* the arg can be accessed via GENSUB_ARG from the callback */
2103	/* the callback must use dXSARGS/XSRETURN */
2104	static SV *
2105	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2106	{	2489	{
2107	CV *cv = (CV *)newSV (0);	2490	if (items >= 2)
		2491	{
		2492	/* callback form */
		2493	AV *av = (AV *)SvRV (arg [0]);
		2494	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108		2495
2109	sv_upgrade ((SV *)cv, SVt_PVCV);	2496	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110		2497
2111	CvANON_on (cv);	2498	if (SvIVX (AvARRAY (av)[0]) > 0)
2112	CvISXSUB_on (cv);	2499	coro_semaphore_adjust (aTHX_ av, 0);
2113	CvXSUB (cv) = xsub;
2114	GENSUB_ARG = arg;
2115		2500
2116	return newRV_noinc ((SV *)cv);	2501	frame->prepare = prepare_nop;
		2502	frame->check = slf_check_nop;
		2503	}
		2504	else
		2505	{
		2506	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2507	frame->check = slf_check_semaphore_wait;
		2508	}
		2509	}
		2510
		2511	/* signal */
		2512
		2513	static void
		2514	coro_signal_wake (pTHX_ AV *av, int count)
		2515	{
		2516	SvIVX (AvARRAY (av)[0]) = 0;
		2517
		2518	/* now signal count waiters */
		2519	while (count > 0 && AvFILLp (av) > 0)
		2520	{
		2521	SV *cb;
		2522
		2523	/* swap first two elements so we can shift a waiter */
		2524	cb = AvARRAY (av)[0];
		2525	AvARRAY (av)[0] = AvARRAY (av)[1];
		2526	AvARRAY (av)[1] = cb;
		2527
		2528	cb = av_shift (av);
		2529
		2530	api_ready (aTHX_ cb);
		2531	sv_setiv (cb, 0); /* signal waiter */
		2532	SvREFCNT_dec (cb);
		2533
		2534	--count;
		2535	}
		2536	}
		2537
		2538	static int
		2539	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2540	{
		2541	/* if we are about to throw, also stop waiting */
		2542	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2543	}
		2544
		2545	static void
		2546	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2547	{
		2548	AV *av = (AV *)SvRV (arg [0]);
		2549
		2550	if (SvIVX (AvARRAY (av)[0]))
		2551	{
		2552	SvIVX (AvARRAY (av)[0]) = 0;
		2553	frame->prepare = prepare_nop;
		2554	frame->check = slf_check_nop;
		2555	}
		2556	else
		2557	{
		2558	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2559
		2560	av_push (av, waiter);
		2561
		2562	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2563	frame->prepare = prepare_schedule;
		2564	frame->check = slf_check_signal_wait;
		2565	}
2117	}	2566	}
2118		2567
2119	/*****************************************************************************/	2568	/*****************************************************************************/
2120	/* Coro::AIO */	2569	/* Coro::AIO */
2121		2570
…		…
2136	dXSARGS;	2585	dXSARGS;
2137	AV *state = (AV *)GENSUB_ARG;	2586	AV *state = (AV *)GENSUB_ARG;
2138	SV *coro = av_pop (state);	2587	SV *coro = av_pop (state);
2139	SV *data_sv = newSV (sizeof (struct io_state));	2588	SV *data_sv = newSV (sizeof (struct io_state));
2140		2589
2141	av_extend (state, items);	2590	av_extend (state, items - 1);
2142		2591
2143	sv_upgrade (data_sv, SVt_PV);	2592	sv_upgrade (data_sv, SVt_PV);
2144	SvCUR_set (data_sv, sizeof (struct io_state));	2593	SvCUR_set (data_sv, sizeof (struct io_state));
2145	SvPOK_only (data_sv);	2594	SvPOK_only (data_sv);
2146		2595
…		…
2281	XSRETURN_EMPTY;	2730	XSRETURN_EMPTY;
2282	}	2731	}
2283		2732
2284	/*****************************************************************************/	2733	/*****************************************************************************/
2285		2734
		2735	#if CORO_CLONE
		2736	# include "clone.c"
		2737	#endif
		2738
2286	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2739	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2287		2740
2288	PROTOTYPES: DISABLE	2741	PROTOTYPES: DISABLE
2289		2742
2290	BOOT:	2743	BOOT:
…		…
2294	coro_thx = PERL_GET_CONTEXT;	2747	coro_thx = PERL_GET_CONTEXT;
2295	# endif	2748	# endif
2296	#endif	2749	#endif
2297	BOOT_PAGESIZE;	2750	BOOT_PAGESIZE;
2298		2751
		2752	cctx_current = cctx_new_empty ();
		2753
2299	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2754	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2300	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2755	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2301		2756
2302	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2757	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2303	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2758	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2322		2777
2323	{	2778	{
2324	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2779	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2325		2780
2326	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2781	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2327	hv_store_ent (PL_custom_op_names, slf,	2782	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2328	newSVpv ("coro_slf", 0), 0);
2329		2783
2330	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2784	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2331	hv_store_ent (PL_custom_op_descs, slf,	2785	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2332	newSVpv ("coro schedule like function", 0), 0);
2333	}	2786	}
2334		2787
2335	coroapi.ver = CORO_API_VERSION;	2788	coroapi.ver = CORO_API_VERSION;
2336	coroapi.rev = CORO_API_REVISION;	2789	coroapi.rev = CORO_API_REVISION;
2337		2790
…		…
2356	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2809	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2357	}	2810	}
2358		2811
2359	SV *	2812	SV *
2360	new (char *klass, ...)	2813	new (char *klass, ...)
		2814	ALIAS:
		2815	Coro::new = 1
2361	CODE:	2816	CODE:
2362	{	2817	{
2363	struct coro *coro;	2818	struct coro *coro;
2364	MAGIC *mg;	2819	MAGIC *mg;
2365	HV *hv;	2820	HV *hv;
		2821	CV *cb;
2366	int i;	2822	int i;
		2823
		2824	if (items > 1)
		2825	{
		2826	cb = coro_sv_2cv (aTHX_ ST (1));
		2827
		2828	if (!ix)
		2829	{
		2830	if (CvISXSUB (cb))
		2831	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2832
		2833	if (!CvROOT (cb))
		2834	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2835	}
		2836	}
2367		2837
2368	Newz (0, coro, 1, struct coro);	2838	Newz (0, coro, 1, struct coro);
2369	coro->args = newAV ();	2839	coro->args = newAV ();
2370	coro->flags = CF_NEW;	2840	coro->flags = CF_NEW;
2371		2841
…		…
2376	coro->hv = hv = newHV ();	2846	coro->hv = hv = newHV ();
2377	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2847	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2378	mg->mg_flags |= MGf_DUP;	2848	mg->mg_flags |= MGf_DUP;
2379	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2849	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2380		2850
		2851	if (items > 1)
		2852	{
2381	av_extend (coro->args, items - 1);	2853	av_extend (coro->args, items - 1 + ix - 1);
		2854
		2855	if (ix)
		2856	{
		2857	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2858	cb = cv_coro_run;
		2859	}
		2860
		2861	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2862
2382	for (i = 1; i < items; i++)	2863	for (i = 2; i < items; i++)
2383	av_push (coro->args, newSVsv (ST (i)));	2864	av_push (coro->args, newSVsv (ST (i)));
		2865	}
2384	}	2866	}
2385	OUTPUT:	2867	OUTPUT:
2386	RETVAL	2868	RETVAL
2387		2869
2388	void	2870	void
…		…
2401	void	2883	void
2402	_exit (int code)	2884	_exit (int code)
2403	PROTOTYPE: $	2885	PROTOTYPE: $
2404	CODE:	2886	CODE:
2405	_exit (code);	2887	_exit (code);
		2888
		2889	SV *
		2890	clone (Coro::State coro)
		2891	CODE:
		2892	{
		2893	#if CORO_CLONE
		2894	struct coro *ncoro = coro_clone (coro);
		2895	MAGIC *mg;
		2896	/* TODO: too much duplication */
		2897	ncoro->hv = newHV ();
		2898	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2899	mg->mg_flags |= MGf_DUP;
		2900	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2901	#else
		2902	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2903	#endif
		2904	}
		2905	OUTPUT:
		2906	RETVAL
2406		2907
2407	int	2908	int
2408	cctx_stacksize (int new_stacksize = 0)	2909	cctx_stacksize (int new_stacksize = 0)
2409	PROTOTYPE: ;$	2910	PROTOTYPE: ;$
2410	CODE:	2911	CODE:
…		…
2586		3087
2587	BOOT:	3088	BOOT:
2588	{	3089	{
2589	int i;	3090	int i;
2590		3091
2591	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2592	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3092	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2593	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3093	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2594		3094	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3095	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2595	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3096	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2596	SvREADONLY_on (coro_current);	3097	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3098	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3099	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3100
		3101	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3102	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3103	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3104	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2597		3105
2598	coro_stash = gv_stashpv ("Coro", TRUE);	3106	coro_stash = gv_stashpv ("Coro", TRUE);
2599		3107
2600	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3108	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2601	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3109	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2609		3117
2610	{	3118	{
2611	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3119	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2612		3120
2613	coroapi.schedule = api_schedule;	3121	coroapi.schedule = api_schedule;
		3122	coroapi.schedule_to = api_schedule_to;
2614	coroapi.cede = api_cede;	3123	coroapi.cede = api_cede;
2615	coroapi.cede_notself = api_cede_notself;	3124	coroapi.cede_notself = api_cede_notself;
2616	coroapi.ready = api_ready;	3125	coroapi.ready = api_ready;
2617	coroapi.is_ready = api_is_ready;	3126	coroapi.is_ready = api_is_ready;
2618	coroapi.nready = coro_nready;	3127	coroapi.nready = coro_nready;
…		…
2623	SvREADONLY_on (sv);	3132	SvREADONLY_on (sv);
2624	}	3133	}
2625	}	3134	}
2626		3135
2627	void	3136	void
		3137	terminate (...)
		3138	CODE:
		3139	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3140
		3141	void
2628	schedule (...)	3142	schedule (...)
2629	CODE:	3143	CODE:
2630	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3144	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3145
		3146	void
		3147	schedule_to (...)
		3148	CODE:
		3149	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3150
		3151	void
		3152	cede_to (...)
		3153	CODE:
		3154	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2631		3155
2632	void	3156	void
2633	cede (...)	3157	cede (...)
2634	CODE:	3158	CODE:
2635	CORO_EXECUTE_SLF_XS (slf_init_cede);	3159	CORO_EXECUTE_SLF_XS (slf_init_cede);
2636		3160
2637	void	3161	void
2638	cede_notself (...)	3162	cede_notself (...)
2639	CODE:	3163	CODE:
2640	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3164	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3165
		3166	void
		3167	_cancel (Coro::State self)
		3168	CODE:
		3169	coro_state_destroy (aTHX_ self);
		3170	coro_call_on_destroy (aTHX_ self);
2641		3171
2642	void	3172	void
2643	_set_current (SV *current)	3173	_set_current (SV *current)
2644	PROTOTYPE: $	3174	PROTOTYPE: $
2645	CODE:	3175	CODE:
…		…
2690	CODE:	3220	CODE:
2691	RETVAL = coro_nready;	3221	RETVAL = coro_nready;
2692	OUTPUT:	3222	OUTPUT:
2693	RETVAL	3223	RETVAL
2694		3224
2695	# for async_pool speedup
2696	void	3225	void
2697	_pool_1 (SV *cb)	3226	_pool_handler (...)
2698	CODE:	3227	CODE:
2699	{	3228	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2700	HV *hv = (HV *)SvRV (coro_current);
2701	struct coro *coro = SvSTATE_hv ((SV *)hv);
2702	AV *defav = GvAV (PL_defgv);
2703	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2704	AV *invoke_av;
2705	int i, len;
2706		3229
2707	if (!invoke)	3230	void
		3231	async_pool (SV *cv, ...)
		3232	PROTOTYPE: &@
		3233	PPCODE:
		3234	{
		3235	HV *hv = (HV *)av_pop (av_async_pool);
		3236	AV *av = newAV ();
		3237	SV *cb = ST (0);
		3238	int i;
		3239
		3240	av_extend (av, items - 2);
		3241	for (i = 1; i < items; ++i)
		3242	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3243
		3244	if ((SV *)hv == &PL_sv_undef)
2708	{	3245	{
2709	SV *old = PL_diehook;	3246	PUSHMARK (SP);
2710	PL_diehook = 0;	3247	EXTEND (SP, 2);
2711	SvREFCNT_dec (old);	3248	PUSHs (sv_Coro);
2712	croak ("\3async_pool terminate\2\n");	3249	PUSHs ((SV *)cv_pool_handler);
		3250	PUTBACK;
		3251	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3252	SPAGAIN;
		3253
		3254	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2713	}	3255	}
2714		3256
2715	SvREFCNT_dec (coro->saved_deffh);
2716	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2717
2718	hv_store (hv, "desc", sizeof ("desc") - 1,
2719	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2720
2721	invoke_av = (AV *)SvRV (invoke);
2722	len = av_len (invoke_av);
2723
2724	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2725
2726	if (len > 0)
2727	{	3257	{
2728	av_fill (defav, len - 1);	3258	struct coro *coro = SvSTATE_hv (hv);
2729	for (i = 0; i < len; ++i)	3259
2730	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3260	assert (!coro->invoke_cb);
		3261	assert (!coro->invoke_av);
		3262	coro->invoke_cb = SvREFCNT_inc (cb);
		3263	coro->invoke_av = av;
2731	}	3264	}
		3265
		3266	api_ready (aTHX_ (SV *)hv);
		3267
		3268	if (GIMME_V != G_VOID)
		3269	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3270	else
		3271	SvREFCNT_dec (hv);
2732	}	3272	}
		3273
		3274	SV *
		3275	rouse_cb ()
		3276	PROTOTYPE:
		3277	CODE:
		3278	RETVAL = coro_new_rouse_cb (aTHX);
		3279	OUTPUT:
		3280	RETVAL
2733		3281
2734	void	3282	void
2735	_pool_2 (SV *cb)	3283	rouse_wait (...)
		3284	PROTOTYPE: ;$
2736	CODE:	3285	PPCODE:
2737	{	3286	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2738	HV *hv = (HV *)SvRV (coro_current);
2739	struct coro *coro = SvSTATE_hv ((SV *)hv);
2740
2741	sv_setsv (cb, &PL_sv_undef);
2742
2743	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2744	coro->saved_deffh = 0;
2745
2746	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2747	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2748	{
2749	SV *old = PL_diehook;
2750	PL_diehook = 0;
2751	SvREFCNT_dec (old);
2752	croak ("\3async_pool terminate\2\n");
2753	}
2754
2755	av_clear (GvAV (PL_defgv));
2756	hv_store (hv, "desc", sizeof ("desc") - 1,
2757	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2758
2759	coro->prio = 0;
2760
2761	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2762	api_trace (aTHX_ coro_current, 0);
2763
2764	av_push (av_async_pool, newSVsv (coro_current));
2765	}
2766		3287
2767		3288
2768	MODULE = Coro::State PACKAGE = PerlIO::cede	3289	MODULE = Coro::State PACKAGE = PerlIO::cede
2769		3290
2770	BOOT:	3291	BOOT:
…		…
2772		3293
2773		3294
2774	MODULE = Coro::State PACKAGE = Coro::Semaphore	3295	MODULE = Coro::State PACKAGE = Coro::Semaphore
2775		3296
2776	SV *	3297	SV *
2777	new (SV *klass, SV *count_ = 0)	3298	new (SV *klass, SV *count = 0)
2778	CODE:	3299	CODE:
2779	{	3300	RETVAL = sv_bless (
2780	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3301	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2781	AV *av = newAV ();	3302	GvSTASH (CvGV (cv))
2782	SV **ary;	3303	);
		3304	OUTPUT:
		3305	RETVAL
2783		3306
2784	/* unfortunately, building manually saves memory */	3307	# helper for Coro::Channel
2785	Newx (ary, 2, SV *);	3308	SV *
2786	AvALLOC (av) = ary;	3309	_alloc (int count)
2787	AvARRAY (av) = ary;	3310	CODE:
2788	AvMAX (av) = 1;	3311	RETVAL = coro_waitarray_new (aTHX_ count);
2789	AvFILLp (av) = 0;
2790	ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2791
2792	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2793	}
2794	OUTPUT:	3312	OUTPUT:
2795	RETVAL	3313	RETVAL
2796		3314
2797	SV *	3315	SV *
2798	count (SV *self)	3316	count (SV *self)
…		…
2807	adjust = 1	3325	adjust = 1
2808	CODE:	3326	CODE:
2809	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3327	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2810		3328
2811	void	3329	void
2812	down (SV *self)	3330	down (...)
2813	CODE:	3331	CODE:
2814	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3332	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3333
		3334	void
		3335	wait (...)
		3336	CODE:
		3337	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2815		3338
2816	void	3339	void
2817	try (SV *self)	3340	try (SV *self)
2818	PPCODE:	3341	PPCODE:
2819	{	3342	{
…		…
2831	XSRETURN_NO;	3354	XSRETURN_NO;
2832	}	3355	}
2833		3356
2834	void	3357	void
2835	waiters (SV *self)	3358	waiters (SV *self)
2836	CODE:	3359	PPCODE:
2837	{	3360	{
2838	AV *av = (AV *)SvRV (self);	3361	AV *av = (AV *)SvRV (self);
		3362	int wcount = AvFILLp (av) + 1 - 1;
2839		3363
2840	if (GIMME_V == G_SCALAR)	3364	if (GIMME_V == G_SCALAR)
2841	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3365	XPUSHs (sv_2mortal (newSViv (wcount)));
2842	else	3366	else
2843	{	3367	{
2844	int i;	3368	int i;
2845	EXTEND (SP, AvFILLp (av) + 1 - 1);	3369	EXTEND (SP, wcount);
2846	for (i = 1; i <= AvFILLp (av); ++i)	3370	for (i = 1; i <= wcount; ++i)
2847	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3371	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2848	}	3372	}
2849	}	3373	}
		3374
		3375	MODULE = Coro::State PACKAGE = Coro::Signal
		3376
		3377	SV *
		3378	new (SV *klass)
		3379	CODE:
		3380	RETVAL = sv_bless (
		3381	coro_waitarray_new (aTHX_ 0),
		3382	GvSTASH (CvGV (cv))
		3383	);
		3384	OUTPUT:
		3385	RETVAL
		3386
		3387	void
		3388	wait (...)
		3389	CODE:
		3390	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3391
		3392	void
		3393	broadcast (SV *self)
		3394	CODE:
		3395	{
		3396	AV *av = (AV *)SvRV (self);
		3397	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3398	}
		3399
		3400	void
		3401	send (SV *self)
		3402	CODE:
		3403	{
		3404	AV *av = (AV *)SvRV (self);
		3405
		3406	if (AvFILLp (av))
		3407	coro_signal_wake (aTHX_ av, 1);
		3408	else
		3409	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3410	}
		3411
		3412	IV
		3413	awaited (SV *self)
		3414	CODE:
		3415	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3416	OUTPUT:
		3417	RETVAL
2850		3418
2851		3419
2852	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3420	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2853		3421
2854	BOOT:	3422	BOOT:
…		…
2882		3450
2883	void	3451	void
2884	_register (char *target, char *proto, SV *req)	3452	_register (char *target, char *proto, SV *req)
2885	CODE:	3453	CODE:
2886	{	3454	{
2887	HV *st;	3455	CV *req_cv = coro_sv_2cv (aTHX_ req);
2888	GV *gvp;
2889	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2890	/* newXSproto doesn't return the CV on 5.8 */	3456	/* newXSproto doesn't return the CV on 5.8 */
2891	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3457	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2892	sv_setpv ((SV *)slf_cv, proto);	3458	sv_setpv ((SV *)slf_cv, proto);
2893	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3459	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2894	}	3460	}

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