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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.293 by root, Tue Nov 18 06:10:03 2008 UTC vs.
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC

		1	#define CORO_CLONE 1 //D
		2
1	#include "libcoro/coro.c"	3	#include "libcoro/coro.c"
2		4
3	#define PERL_NO_GET_CONTEXT	5	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	6	#define PERL_EXT
5		7
…		…
16		18
17	#ifdef WIN32	19	#ifdef WIN32
18	# undef setjmp	20	# undef setjmp
19	# undef longjmp	21	# undef longjmp
20	# undef _exit	22	# undef _exit
21	# define setjmp _setjmp // deep magic, don't ask	23	# define setjmp _setjmp /* deep magic */
22	#else	24	#else
23	# include <inttypes.h> /* most portable stdint.h */	25	# include <inttypes.h> /* most portable stdint.h */
24	#endif	26	#endif
25		27
26	#ifdef HAVE_MMAP	28	#ifdef HAVE_MMAP
…		…
55		57
56	#define PERL_VERSION_ATLEAST(a,b,c) \	58	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	59	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	60	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	61	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	62	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		63
62	#if !PERL_VERSION_ATLEAST (5,6,0)	64	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	65	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	66	# define PL_ppaddr ppaddr
65	# endif	67	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	100	# define newSV(l) NEWSV(0,l)
99	#endif	101	#endif
100	#ifndef CvISXSUB_on	102	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	103	# define CvISXSUB_on(cv) (void)cv
102	#endif	104	#endif
		105	#ifndef CvISXSUB
		106	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		107	#endif
		108	#ifndef Newx
		109	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		110	#endif
103		111
104	/* 5.8.7 */	112	/* 5.8.7 */
105	#ifndef SvRV_set	113	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	114	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	115	#endif
…		…
120	#endif	128	#endif
121		129
122	/* The next macros try to return the current stack pointer, in an as	130	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	131	* portable way as possible. */
124	#if __GNUC__ >= 4	132	#if __GNUC__ >= 4
		133	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	134	# define STACKLEVEL __builtin_frame_address (0)
126	#else	135	#else
127	# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel	136	# define dSTACKLEVEL volatile void *stacklevel
		137	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	138	#endif
129		139
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	140	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		141
132	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	153	#define expect_true(expr) expect ((expr) != 0, 1)
144		154
145	#define NOINLINE attribute ((noinline))	155	#define NOINLINE attribute ((noinline))
146		156
147	#include "CoroAPI.h"	157	#include "CoroAPI.h"
		158	#define GCoroAPI (&coroapi) /* very sneaky */
148		159
149	#ifdef USE_ITHREADS	160	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	161	# if CORO_PTHREAD
151	static void *coro_thx;	162	static void *coro_thx;
152	# endif	163	# endif
…		…
164	static AV *main_mainstack; /* used to differentiate between $main and others */	175	static AV *main_mainstack; /* used to differentiate between $main and others */
165	static JMPENV *main_top_env;	176	static JMPENV *main_top_env;
166	static HV *coro_state_stash, *coro_stash;	177	static HV *coro_state_stash, *coro_stash;
167	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	178	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
168		179
		180	static AV *av_destroy; /* destruction queue */
		181	static SV *sv_manager; /* the manager coro */
		182
169	static GV *irsgv; /* $/ */	183	static GV *irsgv; /* $/ */
170	static GV *stdoutgv; /* *STDOUT */	184	static GV *stdoutgv; /* *STDOUT */
171	static SV *rv_diehook;	185	static SV *rv_diehook;
172	static SV *rv_warnhook;	186	static SV *rv_warnhook;
173	static HV *hv_sig; /* %SIG */	187	static HV *hv_sig; /* %SIG */
174		188
175	/* async_pool helper stuff */	189	/* async_pool helper stuff */
176	static SV *sv_pool_rss;	190	static SV *sv_pool_rss;
177	static SV *sv_pool_size;	191	static SV *sv_pool_size;
		192	static SV *sv_async_pool_idle; /* description string */
178	static AV *av_async_pool;	193	static AV *av_async_pool; /* idle pool */
		194	static SV *sv_Coro; /* class string */
		195	static CV *cv_pool_handler;
		196	static CV *cv_coro_state_new;
179		197
180	/* Coro::AnyEvent */	198	/* Coro::AnyEvent */
181	static SV *sv_activity;	199	static SV *sv_activity;
182		200
183	static struct coro_cctx *cctx_first;	201	static struct coro_cctx *cctx_first;
…		…
243	/* state data */	261	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	262	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	263	AV *mainstack;
246	perl_slots *slot; /* basically the saved sp */	264	perl_slots *slot; /* basically the saved sp */
247		265
		266	CV *startcv; /* the CV to execute */
248	AV *args; /* data associated with this coroutine (initial args) */	267	AV *args; /* data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	268	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	269	int flags; /* CF_ flags */
251	HV *hv; /* the perl hash associated with this coro, if any */	270	HV *hv; /* the perl hash associated with this coro, if any */
252	void (*on_destroy)(pTHX_ struct coro *coro);	271	void (*on_destroy)(pTHX_ struct coro *coro);
253		272
254	/* statistics */	273	/* statistics */
255	int usecount; /* number of transfers to this coro */	274	int usecount; /* number of transfers to this coro */
256		275
257	/* coro process data */	276	/* coro process data */
258	int prio;	277	int prio;
259	SV *throw; /* exception to be thrown */	278	SV *except; /* exception to be thrown */
		279	SV *rouse_cb;
260		280
261	/* async_pool */	281	/* async_pool */
262	SV *saved_deffh;	282	SV *saved_deffh;
		283	SV *invoke_cb;
		284	AV *invoke_av;
263		285
264	/* linked list */	286	/* linked list */
265	struct coro *next, *prev;	287	struct coro *next, *prev;
266	};	288	};
267		289
…		…
270		292
271	/* the following variables are effectively part of the perl context */	293	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	294	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	295	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	296	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		297
277	/** Coro ********************************************************************/	298	/** Coro ********************************************************************/
278		299
279	#define PRIO_MAX 3	300	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	301	#define PRIO_HIGH 1
…		…
285		306
286	/* for Coro.pm */	307	/* for Coro.pm */
287	static SV *coro_current;	308	static SV *coro_current;
288	static SV *coro_readyhook;	309	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	310	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		311	static CV *cv_coro_run, *cv_coro_terminate;
290	static struct coro *coro_first;	312	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	313	#define coro_nready coroapi.nready
292		314
293	/** lowlevel stuff **********************************************************/	315	/** lowlevel stuff **********************************************************/
294		316
…		…
320	get_hv (name, create);	342	get_hv (name, create);
321	#endif	343	#endif
322	return get_hv (name, create);	344	return get_hv (name, create);
323	}	345	}
324		346
		347	/* may croak */
		348	INLINE CV *
		349	coro_sv_2cv (pTHX_ SV *sv)
		350	{
		351	HV *st;
		352	GV *gvp;
		353	return sv_2cv (sv, &st, &gvp, 0);
		354	}
		355
325	static AV *	356	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	357	coro_derive_padlist (pTHX_ CV *cv)
327	{	358	{
328	AV *padlist = CvPADLIST (cv);	359	AV *padlist = CvPADLIST (cv);
329	AV *newpadlist, *newpad;	360	AV *newpadlist, *newpad;
330		361
331	newpadlist = newAV ();	362	newpadlist = newAV ();
…		…
446	else	477	else
447	{	478	{
448	#if CORO_PREFER_PERL_FUNCTIONS	479	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	480	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	481	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	482	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	483	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	484	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	485	SvREFCNT_dec (cp);
455	#else	486	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	487	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457	#endif	488	#endif
458	}	489	}
459	}	490	}
460		491
461	static void	492	static void
…		…
509		540
510	PUTBACK;	541	PUTBACK;
511	}	542	}
512		543
513	slf_frame = c->slf_frame;	544	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	545	CORO_THROW = c->except;
515	}	546	}
516		547
517	static void	548	static void
518	save_perl (pTHX_ Coro__State c)	549	save_perl (pTHX_ Coro__State c)
519	{	550	{
520	c->throw = coro_throw;	551	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	552	c->slf_frame = slf_frame;
522		553
523	{	554	{
524	dSP;	555	dSP;
525	I32 cxix = cxstack_ix;	556	I32 cxix = cxstack_ix;
…		…
600	* of perl.c:init_stacks, except that it uses less memory	631	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	632	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	633	* not usually need a lot of stackspace.
603	*/	634	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	635	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	636	# define coro_init_stacks(thx) init_stacks ()
606	#else	637	#else
607	static void	638	static void
608	coro_init_stacks (pTHX)	639	coro_init_stacks (pTHX)
609	{	640	{
610	PL_curstackinfo = new_stackinfo(32, 8);	641	PL_curstackinfo = new_stackinfo(32, 8);
…		…
673	#if !PERL_VERSION_ATLEAST (5,10,0)	704	#if !PERL_VERSION_ATLEAST (5,10,0)
674	Safefree (PL_retstack);	705	Safefree (PL_retstack);
675	#endif	706	#endif
676	}	707	}
677		708
		709	#define CORO_RSS \
		710	rss += sizeof (SYM (curstackinfo)); \
		711	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		712	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		713	rss += SYM (tmps_max) * sizeof (SV *); \
		714	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		715	rss += SYM (scopestack_max) * sizeof (I32); \
		716	rss += SYM (savestack_max) * sizeof (ANY);
		717
678	static size_t	718	static size_t
679	coro_rss (pTHX_ struct coro *coro)	719	coro_rss (pTHX_ struct coro *coro)
680	{	720	{
681	size_t rss = sizeof (*coro);	721	size_t rss = sizeof (*coro);
682		722
683	if (coro->mainstack)	723	if (coro->mainstack)
684	{	724	{
685	perl_slots tmp_slot;
686	perl_slots *slot;
687
688	if (coro->flags & CF_RUNNING)	725	if (coro->flags & CF_RUNNING)
689	{	726	{
690	slot = &tmp_slot;	727	#define SYM(sym) PL_ ## sym
691		728	CORO_RSS;
692	#define VAR(name,type) slot->name = PL_ ## name;
693	# include "state.h"
694	#undef VAR	729	#undef SYM
695	}	730	}
696	else	731	else
697	slot = coro->slot;
698
699	if (slot)
700	{	732	{
701	rss += sizeof (slot->curstackinfo);	733	#define SYM(sym) coro->slot->sym
702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	734	CORO_RSS;
703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	735	#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	}	736	}
713	}	737	}
714		738
715	return rss;	739	return rss;
716	}	740	}
…		…
818	slf_check_nop (pTHX_ struct CoroSLF *frame)	842	slf_check_nop (pTHX_ struct CoroSLF *frame)
819	{	843	{
820	return 0;	844	return 0;
821	}	845	}
822		846
		847	static int
		848	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		849	{
		850	return 1;
		851	}
		852
823	static UNOP coro_setup_op;	853	static UNOP coro_setup_op;
824		854
825	static void NOINLINE /* noinline to keep it out of the transfer fast path */	855	static void NOINLINE /* noinline to keep it out of the transfer fast path */
826	coro_setup (pTHX_ struct coro *coro)	856	coro_setup (pTHX_ struct coro *coro)
827	{	857	{
…		…
857	{	887	{
858	dSP;	888	dSP;
859	UNOP myop;	889	UNOP myop;
860		890
861	Zero (&myop, 1, UNOP);	891	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	892	myop.op_next = Nullop;
		893	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	894	myop.op_flags = OPf_WANT_VOID;
864		895
865	PUSHMARK (SP);	896	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	897	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	898	PUTBACK;
868	PL_op = (OP *)&myop;	899	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	900	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	901	}
872		902
873	/* this newly created coroutine might be run on an existing cctx which most	903	/* this newly created coroutine might be run on an existing cctx which most
874	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	904	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	905	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	906	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	907	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		908
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	909	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		910	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	911	coro_setup_op.op_type = OP_ENTERSUB;
881	coro_setup_op.op_ppaddr = pp_slf;	912	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	913	/* no flags etc. required, as an init function won't be called */
883		914
884	PL_op = (OP *)&coro_setup_op;	915	PL_op = (OP *)&coro_setup_op;
885		916
886	/* copy throw, in case it was set before coro_setup */	917	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	918	CORO_THROW = coro->except;
888	}	919	}
889		920
890	static void	921	static void
891	coro_destruct (pTHX_ struct coro *coro)	922	coro_destruct (pTHX_ struct coro *coro)
892	{	923	{
…		…
916		947
917	SvREFCNT_dec (PL_diehook);	948	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	949	SvREFCNT_dec (PL_warnhook);
919		950
920	SvREFCNT_dec (coro->saved_deffh);	951	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	952	SvREFCNT_dec (coro->rouse_cb);
		953	SvREFCNT_dec (coro->invoke_cb);
		954	SvREFCNT_dec (coro->invoke_av);
922		955
923	coro_destruct_stacks (aTHX);	956	coro_destruct_stacks (aTHX);
924	}	957	}
925		958
926	INLINE void	959	INLINE void
…		…
998	{	1031	{
999	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1032	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000		1033
1001	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1034	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002	{	1035	{
1003	runops_proc_t old_runops = PL_runops;
1004	dSP;	1036	dSP;
1005	GV *gv = CvGV (cx->blk_sub.cv);	1037	GV *gv = CvGV (cx->blk_sub.cv);
1006	SV *fullname = sv_2mortal (newSV (0));	1038	SV *fullname = sv_2mortal (newSV (0));
1007		1039
1008	if (isGV (gv))	1040	if (isGV (gv))
…		…
1013	SAVETMPS;	1045	SAVETMPS;
1014	EXTEND (SP, 3);	1046	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1047	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1048	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1049	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1050	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1051	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1052	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1053	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022	SPAGAIN;	1054	SPAGAIN;
1023	FREETMPS;	1055	FREETMPS;
…		…
1070	static int	1102	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1103	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1104	{
1073	*frame = cctx_ssl_frame;	1105	*frame = cctx_ssl_frame;
1074		1106
1075	return 1; /* execute the restored frame - there must be one */	1107	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1108	}
1077		1109
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1110	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1111	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1112	cctx_prepare (pTHX_ coro_cctx *cctx)
1081	{	1113	{
1082	PL_top_env = &PL_start_env;	1114	PL_top_env = &PL_start_env;
1083		1115
…		…
1087	/* 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
1088	* that can lead to creation of a new cctx */	1120	* that can lead to creation of a new cctx */
1089	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)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1122	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1123
		1124	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1092	cctx_ssl_cctx = cctx;	1125	cctx_ssl_cctx = cctx;
1093	cctx_ssl_frame = slf_frame;	1126	cctx_ssl_frame = slf_frame;
1094		1127
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1128	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1129	slf_frame.check = slf_check_set_stacklevel;
…		…
1128	transfer_tail (aTHX);	1161	transfer_tail (aTHX);
1129		1162
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1163	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1164	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1165	perl_run (PL_curinterp);
		1166	/*
		1167	* Unfortunately, there is no way to get at the return values of the
		1168	* coro body here, as perl_run destroys these
		1169	*/
1133		1170
1134	/*	1171	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1172	* If perl-run returns we assume exit() was being called or the coro
1136	* fell off the end, which seems to be the only valid (non-bug)	1173	* fell off the end, which seems to be the only valid (non-bug)
1137	* reason for perl_run to return. We try to exit by jumping to the	1174	* reason for perl_run to return. We try to exit by jumping to the
…		…
1317	dSTACKLEVEL;	1354	dSTACKLEVEL;
1318		1355
1319	/* sometimes transfer is only called to set idle_sp */	1356	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1357	if (expect_false (!next))
1321	{	1358	{
1322	((coro_cctx *)prev)->idle_sp = (void *)stacklevel;	1359	((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 */	1360	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324	}	1361	}
1325	else if (expect_true (prev != next))	1362	else if (expect_true (prev != next))
1326	{	1363	{
1327	coro_cctx *prev__cctx;	1364	coro_cctx *prev__cctx;
…		…
1352		1389
1353	prev__cctx = prev->cctx;	1390	prev__cctx = prev->cctx;
1354		1391
1355	/* possibly untie and reuse the cctx */	1392	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1393	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1394	prev__cctx->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1395	&& !(prev__cctx->flags & CC_TRACE)
1359	&& !force_cctx	1396	&& !force_cctx
1360	))	1397	))
1361	{	1398	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1399	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
…		…
1429		1466
1430	coro->slot = 0;	1467	coro->slot = 0;
1431	}	1468	}
1432		1469
1433	cctx_destroy (coro->cctx);	1470	cctx_destroy (coro->cctx);
		1471	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1472	SvREFCNT_dec (coro->args);
		1473	SvREFCNT_dec (CORO_THROW);
1435		1474
1436	if (coro->next) coro->next->prev = coro->prev;	1475	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1476	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1477	if (coro == coro_first) coro_first = coro->next;
1439		1478
…		…
1493		1532
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1533	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1534	TRANSFER (ta, 1);
1496	}	1535	}
1497		1536
		1537	/*****************************************************************************/
		1538	/* gensub: simple closure generation utility */
		1539
		1540	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1541
		1542	/* create a closure from XS, returns a code reference */
		1543	/* the arg can be accessed via GENSUB_ARG from the callback */
		1544	/* the callback must use dXSARGS/XSRETURN */
		1545	static SV *
		1546	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
		1547	{
		1548	CV *cv = (CV *)newSV (0);
		1549
		1550	sv_upgrade ((SV *)cv, SVt_PVCV);
		1551
		1552	CvANON_on (cv);
		1553	CvISXSUB_on (cv);
		1554	CvXSUB (cv) = xsub;
		1555	GENSUB_ARG = arg;
		1556
		1557	return newRV_noinc ((SV *)cv);
		1558	}
		1559
1498	/** Coro ********************************************************************/	1560	/** Coro ********************************************************************/
1499		1561
1500	INLINE void	1562	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1563	coro_enq (pTHX_ struct coro *coro)
1502	{	1564	{
…		…
1563	api_is_ready (pTHX_ SV *coro_sv)	1625	api_is_ready (pTHX_ SV *coro_sv)
1564	{	1626	{
1565	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1627	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566	}	1628	}
1567		1629
		1630	/* expects to own a reference to next->hv */
1568	INLINE void	1631	INLINE void
		1632	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
		1633	{
		1634	SV *prev_sv = SvRV (coro_current);
		1635
		1636	ta->prev = SvSTATE_hv (prev_sv);
		1637	ta->next = next;
		1638
		1639	TRANSFER_CHECK (*ta);
		1640
		1641	SvRV_set (coro_current, (SV *)next->hv);
		1642
		1643	free_coro_mortal (aTHX);
		1644	coro_mortal = prev_sv;
		1645	}
		1646
		1647	static void
1569	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1648	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1570	{	1649	{
1571	SV *prev_sv, *next_sv;
1572
1573	for (;;)	1650	for (;;)
1574	{	1651	{
1575	next_sv = coro_deq (aTHX);	1652	SV *next_sv = coro_deq (aTHX);
1576		1653
1577	/* nothing to schedule: call the idle handler */
1578	if (expect_false (!next_sv))	1654	if (expect_true (next_sv))
1579	{	1655	{
		1656	struct coro *next = SvSTATE_hv (next_sv);
		1657
		1658	/* cannot transfer to destroyed coros, skip and look for next */
		1659	if (expect_false (next->flags & CF_DESTROYED))
		1660	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1661	else
		1662	{
		1663	next->flags &= ~CF_READY;
		1664	--coro_nready;
		1665
		1666	prepare_schedule_to (aTHX_ ta, next);
		1667	break;
		1668	}
		1669	}
		1670	else
		1671	{
		1672	/* nothing to schedule: call the idle handler */
1580	dSP;	1673	dSP;
1581		1674
1582	ENTER;	1675	ENTER;
1583	SAVETMPS;	1676	SAVETMPS;
1584		1677
…		…
1586	PUTBACK;	1679	PUTBACK;
1587	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1680	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1588		1681
1589	FREETMPS;	1682	FREETMPS;
1590	LEAVE;	1683	LEAVE;
1591	continue;
1592	}	1684	}
1593
1594	ta->next = SvSTATE_hv (next_sv);
1595
1596	/* cannot transfer to destroyed coros, skip and look for next */
1597	if (expect_false (ta->next->flags & CF_DESTROYED))
1598	{
1599	SvREFCNT_dec (next_sv);
1600	/* coro_nready has already been taken care of by destroy */
1601	continue;
1602	}
1603
1604	--coro_nready;
1605	break;
1606	}	1685	}
1607
1608	/* free this only after the transfer */
1609	prev_sv = SvRV (coro_current);
1610	ta->prev = SvSTATE_hv (prev_sv);
1611	TRANSFER_CHECK (*ta);
1612	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1613	ta->next->flags &= ~CF_READY;
1614	SvRV_set (coro_current, next_sv);
1615
1616	free_coro_mortal (aTHX);
1617	coro_mortal = prev_sv;
1618	}	1686	}
1619		1687
1620	INLINE void	1688	INLINE void
1621	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1689	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622	{	1690	{
…		…
1643	{	1711	{
1644	struct coro_transfer_args ta;	1712	struct coro_transfer_args ta;
1645		1713
1646	prepare_schedule (aTHX_ &ta);	1714	prepare_schedule (aTHX_ &ta);
1647	TRANSFER (ta, 1);	1715	TRANSFER (ta, 1);
		1716	}
		1717
		1718	static void
		1719	api_schedule_to (pTHX_ SV *coro_sv)
		1720	{
		1721	struct coro_transfer_args ta;
		1722	struct coro *next = SvSTATE (coro_sv);
		1723
		1724	SvREFCNT_inc_NN (coro_sv);
		1725	prepare_schedule_to (aTHX_ &ta, next);
1648	}	1726	}
1649		1727
1650	static int	1728	static int
1651	api_cede (pTHX)	1729	api_cede (pTHX)
1652	{	1730	{
…		…
1699	if (coro->flags & CF_RUNNING)	1777	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1778	PL_runops = RUNOPS_DEFAULT;
1701	else	1779	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1780	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1781	}
		1782	}
		1783
		1784	static void
		1785	coro_call_on_destroy (pTHX_ struct coro *coro)
		1786	{
		1787	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1788	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1789
		1790	if (on_destroyp)
		1791	{
		1792	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1793
		1794	while (AvFILLp (on_destroy) >= 0)
		1795	{
		1796	dSP; /* don't disturb outer sp */
		1797	SV *cb = av_pop (on_destroy);
		1798
		1799	PUSHMARK (SP);
		1800
		1801	if (statusp)
		1802	{
		1803	int i;
		1804	AV *status = (AV *)SvRV (*statusp);
		1805	EXTEND (SP, AvFILLp (status) + 1);
		1806
		1807	for (i = 0; i <= AvFILLp (status); ++i)
		1808	PUSHs (AvARRAY (status)[i]);
		1809	}
		1810
		1811	PUTBACK;
		1812	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1813	}
		1814	}
		1815	}
		1816
		1817	static void
		1818	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1819	{
		1820	int i;
		1821	HV *hv = (HV *)SvRV (coro_current);
		1822	AV *av = newAV ();
		1823
		1824	av_extend (av, items - 1);
		1825	for (i = 0; i < items; ++i)
		1826	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1827
		1828	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1829
		1830	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1831	api_ready (aTHX_ sv_manager);
		1832
		1833	frame->prepare = prepare_schedule;
		1834	frame->check = slf_check_repeat;
		1835	}
		1836
		1837	/*****************************************************************************/
		1838	/* async pool handler */
		1839
		1840	static int
		1841	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1842	{
		1843	HV *hv = (HV *)SvRV (coro_current);
		1844	struct coro *coro = (struct coro *)frame->data;
		1845
		1846	if (!coro->invoke_cb)
		1847	return 1; /* loop till we have invoke */
		1848	else
		1849	{
		1850	hv_store (hv, "desc", sizeof ("desc") - 1,
		1851	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1852
		1853	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1854
		1855	{
		1856	dSP;
		1857	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1858	PUTBACK;
		1859	}
		1860
		1861	SvREFCNT_dec (GvAV (PL_defgv));
		1862	GvAV (PL_defgv) = coro->invoke_av;
		1863	coro->invoke_av = 0;
		1864
		1865	return 0;
		1866	}
		1867	}
		1868
		1869	static void
		1870	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1871	{
		1872	HV *hv = (HV *)SvRV (coro_current);
		1873	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1874
		1875	if (expect_true (coro->saved_deffh))
		1876	{
		1877	/* subsequent iteration */
		1878	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1879	coro->saved_deffh = 0;
		1880
		1881	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1882	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1883	{
		1884	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1885	coro->invoke_av = newAV ();
		1886
		1887	frame->prepare = prepare_nop;
		1888	}
		1889	else
		1890	{
		1891	av_clear (GvAV (PL_defgv));
		1892	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1893
		1894	coro->prio = 0;
		1895
		1896	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1897	api_trace (aTHX_ coro_current, 0);
		1898
		1899	frame->prepare = prepare_schedule;
		1900	av_push (av_async_pool, SvREFCNT_inc (hv));
		1901	}
		1902	}
		1903	else
		1904	{
		1905	/* first iteration, simply fall through */
		1906	frame->prepare = prepare_nop;
		1907	}
		1908
		1909	frame->check = slf_check_pool_handler;
		1910	frame->data = (void *)coro;
		1911	}
		1912
		1913	/*****************************************************************************/
		1914	/* rouse callback */
		1915
		1916	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1917
		1918	static void
		1919	coro_rouse_callback (pTHX_ CV *cv)
		1920	{
		1921	dXSARGS;
		1922	SV *data = (SV *)GENSUB_ARG;
		1923
		1924	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1925	{
		1926	/* first call, set args */
		1927	AV *av = newAV ();
		1928	SV *coro = SvRV (data);
		1929
		1930	SvRV_set (data, (SV *)av);
		1931	api_ready (aTHX_ coro);
		1932	SvREFCNT_dec (coro);
		1933
		1934	/* better take a full copy of the arguments */
		1935	while (items--)
		1936	av_store (av, items, newSVsv (ST (items)));
		1937	}
		1938
		1939	XSRETURN_EMPTY;
		1940	}
		1941
		1942	static int
		1943	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1944	{
		1945	SV *data = (SV *)frame->data;
		1946
		1947	if (CORO_THROW)
		1948	return 0;
		1949
		1950	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1951	return 1;
		1952
		1953	/* now push all results on the stack */
		1954	{
		1955	dSP;
		1956	AV *av = (AV *)SvRV (data);
		1957	int i;
		1958
		1959	EXTEND (SP, AvFILLp (av) + 1);
		1960	for (i = 0; i <= AvFILLp (av); ++i)
		1961	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1962
		1963	/* we have stolen the elements, so ste length to zero and free */
		1964	AvFILLp (av) = -1;
		1965	av_undef (av);
		1966
		1967	PUTBACK;
		1968	}
		1969
		1970	return 0;
		1971	}
		1972
		1973	static void
		1974	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1975	{
		1976	SV *cb;
		1977
		1978	if (items)
		1979	cb = arg [0];
		1980	else
		1981	{
		1982	struct coro *coro = SvSTATE_current;
		1983
		1984	if (!coro->rouse_cb)
		1985	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1986
		1987	cb = sv_2mortal (coro->rouse_cb);
		1988	coro->rouse_cb = 0;
		1989	}
		1990
		1991	if (!SvROK (cb)
		1992	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		1993	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1994	croak ("Coro::rouse_wait called with illegal callback argument,");
		1995
		1996	{
		1997	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		1998	SV *data = (SV *)GENSUB_ARG;
		1999
		2000	frame->data = (void *)data;
		2001	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2002	frame->check = slf_check_rouse_wait;
		2003	}
		2004	}
		2005
		2006	static SV *
		2007	coro_new_rouse_cb (pTHX)
		2008	{
		2009	HV *hv = (HV *)SvRV (coro_current);
		2010	struct coro *coro = SvSTATE_hv (hv);
		2011	SV *data = newRV_inc ((SV *)hv);
		2012	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		2013
		2014	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2015	SvREFCNT_dec (data); /* magicext increases the refcount */
		2016
		2017	SvREFCNT_dec (coro->rouse_cb);
		2018	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2019
		2020	return cb;
1704	}	2021	}
1705		2022
1706	/*****************************************************************************/	2023	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	2024	/* schedule-like-function opcode (SLF) */
1708		2025
…		…
1755	static void	2072	static void
1756	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2073	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757	{	2074	{
1758	frame->prepare = prepare_schedule;	2075	frame->prepare = prepare_schedule;
1759	frame->check = slf_check_nop;	2076	frame->check = slf_check_nop;
		2077	}
		2078
		2079	static void
		2080	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2081	{
		2082	struct coro *next = (struct coro *)slf_frame.data;
		2083
		2084	SvREFCNT_inc_NN (next->hv);
		2085	prepare_schedule_to (aTHX_ ta, next);
		2086	}
		2087
		2088	static void
		2089	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2090	{
		2091	if (!items)
		2092	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2093
		2094	frame->data = (void *)SvSTATE (arg [0]);
		2095	frame->prepare = slf_prepare_schedule_to;
		2096	frame->check = slf_check_nop;
		2097	}
		2098
		2099	static void
		2100	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2101	{
		2102	api_ready (aTHX_ SvRV (coro_current));
		2103
		2104	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760	}	2105	}
1761		2106
1762	static void	2107	static void
1763	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2108	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764	{	2109	{
…		…
1835	}	2180	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	2181	while (slf_frame.check (aTHX_ &slf_frame));
1837		2182
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2183	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		2184
		2185	/* exception handling */
		2186	if (expect_false (CORO_THROW))
		2187	{
		2188	SV *exception = sv_2mortal (CORO_THROW);
		2189
		2190	CORO_THROW = 0;
		2191	sv_setsv (ERRSV, exception);
		2192	croak (0);
		2193	}
		2194
1840	/* return value handling - mostly like entersub */	2195	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2196	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2197	if (GIMME_V == G_SCALAR)
1843	{	2198	{
1844	dSP;	2199	dSP;
…		…
1850	bot [1] = *sp;	2205	bot [1] = *sp;
1851		2206
1852	SP = bot + 1;	2207	SP = bot + 1;
1853		2208
1854	PUTBACK;	2209	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	}	2210	}
1866		2211
1867	return NORMAL;	2212	return NORMAL;
1868	}	2213	}
1869		2214
…		…
1910	}	2255	}
1911	else	2256	else
1912	slf_argc = 0;	2257	slf_argc = 0;
1913		2258
1914	PL_op->op_ppaddr = pp_slf;	2259	PL_op->op_ppaddr = pp_slf;
1915	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2260	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916		2261
1917	PL_op = (OP *)&slf_restore;	2262	PL_op = (OP *)&slf_restore;
1918	}	2263	}
1919		2264
1920	/*****************************************************************************/	2265	/*****************************************************************************/
…		…
1991	PerlIOBuf_get_cnt,	2336	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2337	PerlIOBuf_set_ptrcnt,
1993	};	2338	};
1994		2339
1995	/*****************************************************************************/	2340	/*****************************************************************************/
		2341	/* Coro::Semaphore & Coro::Signal */
		2342
		2343	static SV *
		2344	coro_waitarray_new (pTHX_ int count)
		2345	{
		2346	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2347	AV *av = newAV ();
		2348	SV **ary;
		2349
		2350	/* unfortunately, building manually saves memory */
		2351	Newx (ary, 2, SV *);
		2352	AvALLOC (av) = ary;
		2353	/*AvARRAY (av) = ary;*/
		2354	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2355	AvMAX (av) = 1;
		2356	AvFILLp (av) = 0;
		2357	ary [0] = newSViv (count);
		2358
		2359	return newRV_noinc ((SV *)av);
		2360	}
		2361
1996	/* Coro::Semaphore */	2362	/* semaphore */
1997		2363
1998	static void	2364	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2365	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2366	{
2001	SV *count_sv = AvARRAY (av)[0];	2367	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2379	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2380	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2381	cb = av_shift (av);
2016		2382
2017	if (SvOBJECT (cb))	2383	if (SvOBJECT (cb))
		2384	{
2018	api_ready (aTHX_ cb);	2385	api_ready (aTHX_ cb);
2019	else	2386	--count;
2020	croak ("callbacks not yet supported");	2387	}
		2388	else if (SvTYPE (cb) == SVt_PVCV)
		2389	{
		2390	dSP;
		2391	PUSHMARK (SP);
		2392	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2393	PUTBACK;
		2394	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2395	}
2021		2396
2022	SvREFCNT_dec (cb);	2397	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2398	}
2026	}	2399	}
2027		2400
2028	static void	2401	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2402	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2404	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2405	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2406	}
2034		2407
2035	static int	2408	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2409	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2410	{
2038	AV *av = (AV *)frame->data;	2411	AV *av = (AV *)frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2412	SV *count_sv = AvARRAY (av)[0];
2040		2413
		2414	/* if we are about to throw, don't actually acquire the lock, just throw */
		2415	if (CORO_THROW)
		2416	return 0;
2041	if (SvIVX (count_sv) > 0)	2417	else if (SvIVX (count_sv) > 0)
2042	{	2418	{
2043	SvSTATE_current->on_destroy = 0;	2419	SvSTATE_current->on_destroy = 0;
		2420
		2421	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2422	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2423	else
		2424	coro_semaphore_adjust (aTHX_ av, 0);
		2425
2045	return 0;	2426	return 0;
2046	}	2427	}
2047	else	2428	else
2048	{	2429	{
2049	int i;	2430	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2439	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2440	return 1;
2060	}	2441	}
2061	}	2442	}
2062		2443
2063	static void	2444	static int
		2445	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2446	{
		2447	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2448	}
		2449
		2450	static int
		2451	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2452	{
		2453	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2454	}
		2455
		2456	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2457	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065	{	2458	{
2066	AV *av = (AV *)SvRV (arg [0]);	2459	AV *av = (AV *)SvRV (arg [0]);
2067		2460
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2461	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2462	{
2070	frame->data = (void *)av;	2463	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2464	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2465	}
2074	else	2466	else
2075	{	2467	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2468	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2469
2078	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2470	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079	frame->prepare = prepare_schedule;	2471	frame->prepare = prepare_schedule;
2080		2472
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2473	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2474	/* 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;	2475	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2476	}
		2477	}
2086		2478
		2479	static void
		2480	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2481	{
		2482	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2483	frame->check = slf_check_semaphore_down;
2088
2089	}	2484	}
2090		2485
2091	/*****************************************************************************/	2486	static void
2092	/* gensub: simple closure generation utility */	2487	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	{	2488	{
2102	CV *cv = (CV *)newSV (0);	2489	if (items >= 2)
		2490	{
		2491	/* callback form */
		2492	AV *av = (AV *)SvRV (arg [0]);
		2493	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103		2494
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2495	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2496
2106	CvANON_on (cv);	2497	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2498	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2499
2111	return newRV_noinc ((SV *)cv);	2500	frame->prepare = prepare_nop;
		2501	frame->check = slf_check_nop;
		2502	}
		2503	else
		2504	{
		2505	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2506	frame->check = slf_check_semaphore_wait;
		2507	}
		2508	}
		2509
		2510	/* signal */
		2511
		2512	static void
		2513	coro_signal_wake (pTHX_ AV *av, int count)
		2514	{
		2515	SvIVX (AvARRAY (av)[0]) = 0;
		2516
		2517	/* now signal count waiters */
		2518	while (count > 0 && AvFILLp (av) > 0)
		2519	{
		2520	SV *cb;
		2521
		2522	/* swap first two elements so we can shift a waiter */
		2523	cb = AvARRAY (av)[0];
		2524	AvARRAY (av)[0] = AvARRAY (av)[1];
		2525	AvARRAY (av)[1] = cb;
		2526
		2527	cb = av_shift (av);
		2528
		2529	api_ready (aTHX_ cb);
		2530	sv_setiv (cb, 0); /* signal waiter */
		2531	SvREFCNT_dec (cb);
		2532
		2533	--count;
		2534	}
		2535	}
		2536
		2537	static int
		2538	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2539	{
		2540	/* if we are about to throw, also stop waiting */
		2541	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2542	}
		2543
		2544	static void
		2545	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2546	{
		2547	AV *av = (AV *)SvRV (arg [0]);
		2548
		2549	if (SvIVX (AvARRAY (av)[0]))
		2550	{
		2551	SvIVX (AvARRAY (av)[0]) = 0;
		2552	frame->prepare = prepare_nop;
		2553	frame->check = slf_check_nop;
		2554	}
		2555	else
		2556	{
		2557	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2558
		2559	av_push (av, waiter);
		2560
		2561	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2562	frame->prepare = prepare_schedule;
		2563	frame->check = slf_check_signal_wait;
		2564	}
2112	}	2565	}
2113		2566
2114	/*****************************************************************************/	2567	/*****************************************************************************/
2115	/* Coro::AIO */	2568	/* Coro::AIO */
2116		2569
…		…
2131	dXSARGS;	2584	dXSARGS;
2132	AV *state = (AV *)GENSUB_ARG;	2585	AV *state = (AV *)GENSUB_ARG;
2133	SV *coro = av_pop (state);	2586	SV *coro = av_pop (state);
2134	SV *data_sv = newSV (sizeof (struct io_state));	2587	SV *data_sv = newSV (sizeof (struct io_state));
2135		2588
2136	av_extend (state, items);	2589	av_extend (state, items - 1);
2137		2590
2138	sv_upgrade (data_sv, SVt_PV);	2591	sv_upgrade (data_sv, SVt_PV);
2139	SvCUR_set (data_sv, sizeof (struct io_state));	2592	SvCUR_set (data_sv, sizeof (struct io_state));
2140	SvPOK_only (data_sv);	2593	SvPOK_only (data_sv);
2141		2594
…		…
2166	static int	2619	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2620	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2621	{
2169	AV *state = (AV *)frame->data;	2622	AV *state = (AV *)frame->data;
2170		2623
		2624	/* if we are about to throw, return early */
		2625	/* this does not cancel the aio request, but at least */
		2626	/* it quickly returns */
		2627	if (CORO_THROW)
		2628	return 0;
		2629
2171	/* one element that is an RV? repeat! */	2630	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2631	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2632	return 1;
2174		2633
2175	/* restore status */	2634	/* restore status */
…		…
2270	XSRETURN_EMPTY;	2729	XSRETURN_EMPTY;
2271	}	2730	}
2272		2731
2273	/*****************************************************************************/	2732	/*****************************************************************************/
2274		2733
		2734	#if CORO_CLONE
		2735	# include "clone.c"
		2736	#endif
		2737
2275	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2738	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276		2739
2277	PROTOTYPES: DISABLE	2740	PROTOTYPES: DISABLE
2278		2741
2279	BOOT:	2742	BOOT:
…		…
2311		2774
2312	{	2775	{
2313	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2776	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314		2777
2315	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2778	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316	hv_store_ent (PL_custom_op_names, slf,	2779	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317	newSVpv ("coro_slf", 0), 0);
2318		2780
2319	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2781	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320	hv_store_ent (PL_custom_op_descs, slf,	2782	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321	newSVpv ("coro schedule like function", 0), 0);
2322	}	2783	}
2323		2784
2324	coroapi.ver = CORO_API_VERSION;	2785	coroapi.ver = CORO_API_VERSION;
2325	coroapi.rev = CORO_API_REVISION;	2786	coroapi.rev = CORO_API_REVISION;
2326		2787
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2806	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2807	}
2347		2808
2348	SV *	2809	SV *
2349	new (char *klass, ...)	2810	new (char *klass, ...)
		2811	ALIAS:
		2812	Coro::new = 1
2350	CODE:	2813	CODE:
2351	{	2814	{
2352	struct coro *coro;	2815	struct coro *coro;
2353	MAGIC *mg;	2816	MAGIC *mg;
2354	HV *hv;	2817	HV *hv;
		2818	CV *cb;
2355	int i;	2819	int i;
		2820
		2821	if (items > 1)
		2822	{
		2823	cb = coro_sv_2cv (aTHX_ ST (1));
		2824
		2825	if (!ix)
		2826	{
		2827	if (CvISXSUB (cb))
		2828	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2829
		2830	if (!CvROOT (cb))
		2831	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2832	}
		2833	}
2356		2834
2357	Newz (0, coro, 1, struct coro);	2835	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2836	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2837	coro->flags = CF_NEW;
2360		2838
…		…
2365	coro->hv = hv = newHV ();	2843	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2844	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2367	mg->mg_flags |= MGf_DUP;	2845	mg->mg_flags |= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2846	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2847
		2848	if (items > 1)
		2849	{
2370	av_extend (coro->args, items - 1);	2850	av_extend (coro->args, items - 1 + ix - 1);
		2851
		2852	if (ix)
		2853	{
		2854	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2855	cb = cv_coro_run;
		2856	}
		2857
		2858	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2859
2371	for (i = 1; i < items; i++)	2860	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2861	av_push (coro->args, newSVsv (ST (i)));
		2862	}
2373	}	2863	}
2374	OUTPUT:	2864	OUTPUT:
2375	RETVAL	2865	RETVAL
2376		2866
2377	void	2867	void
…		…
2390	void	2880	void
2391	_exit (int code)	2881	_exit (int code)
2392	PROTOTYPE: $	2882	PROTOTYPE: $
2393	CODE:	2883	CODE:
2394	_exit (code);	2884	_exit (code);
		2885
		2886	#if CORO_CLONE
		2887
		2888	SV *
		2889	clone (Coro::State coro)
		2890	CODE:
		2891	{
		2892	struct coro *ncoro = coro_clone (coro);
		2893	MAGIC *mg;
		2894	/* TODO: too much duplication */
		2895	ncoro->hv = newHV ();
		2896	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2897	mg->mg_flags |= MGf_DUP;
		2898	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2899	}
		2900	OUTPUT:
		2901	RETVAL
		2902
		2903	#endif
2395		2904
2396	int	2905	int
2397	cctx_stacksize (int new_stacksize = 0)	2906	cctx_stacksize (int new_stacksize = 0)
2398	PROTOTYPE: ;$	2907	PROTOTYPE: ;$
2399	CODE:	2908	CODE:
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	3015	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	3016	PROTOTYPE: $;$
2508	CODE:	3017	CODE:
2509	{	3018	{
2510	struct coro *current = SvSTATE_current;	3019	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	3020	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	3021	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3022	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	3023	}
2515		3024
2516	void	3025	void
…		…
2575		3084
2576	BOOT:	3085	BOOT:
2577	{	3086	{
2578	int i;	3087	int i;
2579		3088
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3089	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3090	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		3091	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3092	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3093	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585	SvREADONLY_on (coro_current);	3094	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3095	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3096	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3097
		3098	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3099	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3100	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3101	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2586		3102
2587	coro_stash = gv_stashpv ("Coro", TRUE);	3103	coro_stash = gv_stashpv ("Coro", TRUE);
2588		3104
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3105	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3106	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2598		3114
2599	{	3115	{
2600	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3116	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601		3117
2602	coroapi.schedule = api_schedule;	3118	coroapi.schedule = api_schedule;
		3119	coroapi.schedule_to = api_schedule_to;
2603	coroapi.cede = api_cede;	3120	coroapi.cede = api_cede;
2604	coroapi.cede_notself = api_cede_notself;	3121	coroapi.cede_notself = api_cede_notself;
2605	coroapi.ready = api_ready;	3122	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	3123	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	3124	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	3125	coroapi.current = coro_current;
2609		3126
2610	GCoroAPI = &coroapi;	3127	/*GCoroAPI = &coroapi;*/
2611	sv_setiv (sv, (IV)&coroapi);	3128	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	3129	SvREADONLY_on (sv);
2613	}	3130	}
2614	}	3131	}
		3132
		3133	void
		3134	terminate (...)
		3135	CODE:
		3136	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615		3137
2616	void	3138	void
2617	schedule (...)	3139	schedule (...)
2618	CODE:	3140	CODE:
2619	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3141	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2620		3142
2621	void	3143	void
		3144	schedule_to (...)
		3145	CODE:
		3146	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3147
		3148	void
		3149	cede_to (...)
		3150	CODE:
		3151	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3152
		3153	void
2622	cede (...)	3154	cede (...)
2623	CODE:	3155	CODE:
2624	CORO_EXECUTE_SLF_XS (slf_init_cede);	3156	CORO_EXECUTE_SLF_XS (slf_init_cede);
2625		3157
2626	void	3158	void
2627	cede_notself (...)	3159	cede_notself (...)
2628	CODE:	3160	CODE:
2629	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3161	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3162
		3163	void
		3164	_cancel (Coro::State self)
		3165	CODE:
		3166	coro_state_destroy (aTHX_ self);
		3167	coro_call_on_destroy (aTHX_ self);
2630		3168
2631	void	3169	void
2632	_set_current (SV *current)	3170	_set_current (SV *current)
2633	PROTOTYPE: $	3171	PROTOTYPE: $
2634	CODE:	3172	CODE:
…		…
2679	CODE:	3217	CODE:
2680	RETVAL = coro_nready;	3218	RETVAL = coro_nready;
2681	OUTPUT:	3219	OUTPUT:
2682	RETVAL	3220	RETVAL
2683		3221
2684	# for async_pool speedup
2685	void	3222	void
2686	_pool_1 (SV *cb)	3223	_pool_handler (...)
2687	CODE:	3224	CODE:
2688	{	3225	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		3226
2696	if (!invoke)	3227	void
		3228	async_pool (SV *cv, ...)
		3229	PROTOTYPE: &@
		3230	PPCODE:
		3231	{
		3232	HV *hv = (HV *)av_pop (av_async_pool);
		3233	AV *av = newAV ();
		3234	SV *cb = ST (0);
		3235	int i;
		3236
		3237	av_extend (av, items - 2);
		3238	for (i = 1; i < items; ++i)
		3239	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3240
		3241	if ((SV *)hv == &PL_sv_undef)
2697	{	3242	{
2698	SV *old = PL_diehook;	3243	PUSHMARK (SP);
2699	PL_diehook = 0;	3244	EXTEND (SP, 2);
2700	SvREFCNT_dec (old);	3245	PUSHs (sv_Coro);
2701	croak ("\3async_pool terminate\2\n");	3246	PUSHs ((SV *)cv_pool_handler);
		3247	PUTBACK;
		3248	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3249	SPAGAIN;
		3250
		3251	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702	}	3252	}
2703		3253
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	{	3254	{
2717	av_fill (defav, len - 1);	3255	struct coro *coro = SvSTATE_hv (hv);
2718	for (i = 0; i < len; ++i)	3256
2719	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3257	assert (!coro->invoke_cb);
		3258	assert (!coro->invoke_av);
		3259	coro->invoke_cb = SvREFCNT_inc (cb);
		3260	coro->invoke_av = av;
2720	}	3261	}
		3262
		3263	api_ready (aTHX_ (SV *)hv);
		3264
		3265	if (GIMME_V != G_VOID)
		3266	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3267	else
		3268	SvREFCNT_dec (hv);
2721	}	3269	}
		3270
		3271	SV *
		3272	rouse_cb ()
		3273	PROTOTYPE:
		3274	CODE:
		3275	RETVAL = coro_new_rouse_cb (aTHX);
		3276	OUTPUT:
		3277	RETVAL
2722		3278
2723	void	3279	void
2724	_pool_2 (SV *cb)	3280	rouse_wait (...)
		3281	PROTOTYPE: ;$
2725	CODE:	3282	PPCODE:
2726	{	3283	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		3284
2756		3285
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3286	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3287
2759	BOOT:	3288	BOOT:
…		…
2761		3290
2762		3291
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3292	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3293
2765	SV *	3294	SV *
2766	new (SV *klass, SV *count_ = 0)	3295	new (SV *klass, SV *count = 0)
2767	CODE:	3296	CODE:
2768	{	3297	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3298	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3299	GvSTASH (CvGV (cv))
2771	SV **ary;	3300	);
		3301	OUTPUT:
		3302	RETVAL
2772		3303
2773	/* unfortunately, building manually saves memory */	3304	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3305	SV *
2775	AvALLOC (av) = ary;	3306	_alloc (int count)
2776	AvARRAY (av) = ary;	3307	CODE:
2777	AvMAX (av) = 1;	3308	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:	3309	OUTPUT:
2784	RETVAL	3310	RETVAL
2785		3311
2786	SV *	3312	SV *
2787	count (SV *self)	3313	count (SV *self)
…		…
2796	adjust = 1	3322	adjust = 1
2797	CODE:	3323	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3324	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3325
2800	void	3326	void
2801	down (SV *self)	3327	down (...)
2802	CODE:	3328	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3329	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3330
		3331	void
		3332	wait (...)
		3333	CODE:
		3334	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3335
2805	void	3336	void
2806	try (SV *self)	3337	try (SV *self)
2807	PPCODE:	3338	PPCODE:
2808	{	3339	{
…		…
2820	XSRETURN_NO;	3351	XSRETURN_NO;
2821	}	3352	}
2822		3353
2823	void	3354	void
2824	waiters (SV *self)	3355	waiters (SV *self)
2825	CODE:	3356	PPCODE:
2826	{	3357	{
2827	AV *av = (AV *)SvRV (self);	3358	AV *av = (AV *)SvRV (self);
		3359	int wcount = AvFILLp (av) + 1 - 1;
2828		3360
2829	if (GIMME_V == G_SCALAR)	3361	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3362	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3363	else
2832	{	3364	{
2833	int i;	3365	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3366	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3367	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3368	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3369	}
2838	}	3370	}
		3371
		3372	MODULE = Coro::State PACKAGE = Coro::Signal
		3373
		3374	SV *
		3375	new (SV *klass)
		3376	CODE:
		3377	RETVAL = sv_bless (
		3378	coro_waitarray_new (aTHX_ 0),
		3379	GvSTASH (CvGV (cv))
		3380	);
		3381	OUTPUT:
		3382	RETVAL
		3383
		3384	void
		3385	wait (...)
		3386	CODE:
		3387	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3388
		3389	void
		3390	broadcast (SV *self)
		3391	CODE:
		3392	{
		3393	AV *av = (AV *)SvRV (self);
		3394	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3395	}
		3396
		3397	void
		3398	send (SV *self)
		3399	CODE:
		3400	{
		3401	AV *av = (AV *)SvRV (self);
		3402
		3403	if (AvFILLp (av))
		3404	coro_signal_wake (aTHX_ av, 1);
		3405	else
		3406	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3407	}
		3408
		3409	IV
		3410	awaited (SV *self)
		3411	CODE:
		3412	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3413	OUTPUT:
		3414	RETVAL
2839		3415
2840		3416
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3417	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3418
2843	BOOT:	3419	BOOT:
…		…
2871		3447
2872	void	3448	void
2873	_register (char *target, char *proto, SV *req)	3449	_register (char *target, char *proto, SV *req)
2874	CODE:	3450	CODE:
2875	{	3451	{
2876	HV *st;	3452	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 */	3453	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3454	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3455	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3456	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3457	}

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