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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.288 by root, Mon Nov 17 07:14:50 2008 UTC vs.
Revision 1.315 by root, Thu Nov 20 05:25:17 2008 UTC

…		…
16		16
17	#ifdef WIN32	17	#ifdef WIN32
18	# undef setjmp	18	# undef setjmp
19	# undef longjmp	19	# undef longjmp
20	# undef _exit	20	# undef _exit
21	# define setjmp _setjmp // deep magic, don't ask	21	# define setjmp _setjmp /* deep magic */
22	#else	22	#else
23	# include <inttypes.h> /* most portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
24	#endif	24	#endif
25		25
26	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
103		106
104	/* 5.8.7 */	107	/* 5.8.7 */
105	#ifndef SvRV_set	108	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	109	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	110	#endif
…		…
120	#endif	123	#endif
121		124
122	/* The next macros try to return the current stack pointer, in an as	125	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	126	* portable way as possible. */
124	#if __GNUC__ >= 4	127	#if __GNUC__ >= 4
		128	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	129	# define STACKLEVEL __builtin_frame_address (0)
126	#else	130	#else
127	# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel	131	# define dSTACKLEVEL volatile void *stacklevel
		132	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	133	#endif
129		134
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	135	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		136
132	#if __GNUC__ >= 3	137	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	148	#define expect_true(expr) expect ((expr) != 0, 1)
144		149
145	#define NOINLINE attribute ((noinline))	150	#define NOINLINE attribute ((noinline))
146		151
147	#include "CoroAPI.h"	152	#include "CoroAPI.h"
		153	#define GCoroAPI (&coroapi) /* very sneaky */
148		154
149	#ifdef USE_ITHREADS	155	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	156	# if CORO_PTHREAD
151	static void *coro_thx;	157	static void *coro_thx;
152	# endif	158	# endif
153	#endif	159	#endif
154		160
155	static double (*nvtime)(); /* so why doesn't it take void? */	161	static double (*nvtime)(); /* so why doesn't it take void? */
		162
		163	/* we hijack an hopefully unused CV flag for our purposes */
		164	#define CVf_SLF 0x4000
		165	static OP *pp_slf (pTHX);
156		166
157	static U32 cctx_gen;	167	static U32 cctx_gen;
158	static size_t cctx_stacksize = CORO_STACKSIZE;	168	static size_t cctx_stacksize = CORO_STACKSIZE;
159	static struct CoroAPI coroapi;	169	static struct CoroAPI coroapi;
160	static AV *main_mainstack; /* used to differentiate between $main and others */	170	static AV *main_mainstack; /* used to differentiate between $main and others */
…		…
169	static HV *hv_sig; /* %SIG */	179	static HV *hv_sig; /* %SIG */
170		180
171	/* async_pool helper stuff */	181	/* async_pool helper stuff */
172	static SV *sv_pool_rss;	182	static SV *sv_pool_rss;
173	static SV *sv_pool_size;	183	static SV *sv_pool_size;
		184	static SV *sv_async_pool_idle;
174	static AV *av_async_pool;	185	static AV *av_async_pool;
		186	static SV *sv_Coro;
		187	static CV *cv_pool_handler;
		188	static CV *cv_coro_state_new;
175		189
176	/* Coro::AnyEvent */	190	/* Coro::AnyEvent */
177	static SV *sv_activity;	191	static SV *sv_activity;
178		192
179	static struct coro_cctx *cctx_first;	193	static struct coro_cctx *cctx_first;
…		…
239	/* state data */	253	/* state data */
240	struct CoroSLF slf_frame; /* saved slf frame */	254	struct CoroSLF slf_frame; /* saved slf frame */
241	AV *mainstack;	255	AV *mainstack;
242	perl_slots *slot; /* basically the saved sp */	256	perl_slots *slot; /* basically the saved sp */
243		257
		258	CV *startcv; /* the CV to execute */
244	AV *args; /* data associated with this coroutine (initial args) */	259	AV *args; /* data associated with this coroutine (initial args) */
245	int refcnt; /* coroutines are refcounted, yes */	260	int refcnt; /* coroutines are refcounted, yes */
246	int flags; /* CF_ flags */	261	int flags; /* CF_ flags */
247	HV *hv; /* the perl hash associated with this coro, if any */	262	HV *hv; /* the perl hash associated with this coro, if any */
248	void (*on_destroy)(pTHX_ struct coro *coro);	263	void (*on_destroy)(pTHX_ struct coro *coro);
249		264
250	/* statistics */	265	/* statistics */
251	int usecount; /* number of transfers to this coro */	266	int usecount; /* number of transfers to this coro */
252		267
253	/* coro process data */	268	/* coro process data */
254	int prio;	269	int prio;
255	SV *throw; /* exception to be thrown */	270	SV *except; /* exception to be thrown */
		271	SV *rouse_cb;
256		272
257	/* async_pool */	273	/* async_pool */
258	SV *saved_deffh;	274	SV *saved_deffh;
		275	SV *invoke_cb;
		276	AV *invoke_av;
259		277
260	/* linked list */	278	/* linked list */
261	struct coro *next, *prev;	279	struct coro *next, *prev;
262	};	280	};
263		281
…		…
266		284
267	/* the following variables are effectively part of the perl context */	285	/* the following variables are effectively part of the perl context */
268	/* and get copied between struct coro and these variables */	286	/* and get copied between struct coro and these variables */
269	/* the mainr easonw e don't support windows process emulation */	287	/* the mainr easonw e don't support windows process emulation */
270	static struct CoroSLF slf_frame; /* the current slf frame */	288	static struct CoroSLF slf_frame; /* the current slf frame */
271	static SV *coro_throw;
272		289
273	/** Coro ********************************************************************/	290	/** Coro ********************************************************************/
274		291
275	#define PRIO_MAX 3	292	#define PRIO_MAX 3
276	#define PRIO_HIGH 1	293	#define PRIO_HIGH 1
…		…
281		298
282	/* for Coro.pm */	299	/* for Coro.pm */
283	static SV *coro_current;	300	static SV *coro_current;
284	static SV *coro_readyhook;	301	static SV *coro_readyhook;
285	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	302	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		303	static CV *cv_coro_run, *cv_coro_terminate;
286	static struct coro *coro_first;	304	static struct coro *coro_first;
287	#define coro_nready coroapi.nready	305	#define coro_nready coroapi.nready
288		306
289	/** lowlevel stuff **********************************************************/	307	/** lowlevel stuff **********************************************************/
290		308
…		…
314	#if PERL_VERSION_ATLEAST (5,10,0)	332	#if PERL_VERSION_ATLEAST (5,10,0)
315	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	333	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
316	get_hv (name, create);	334	get_hv (name, create);
317	#endif	335	#endif
318	return get_hv (name, create);	336	return get_hv (name, create);
		337	}
		338
		339	/* may croak */
		340	INLINE CV *
		341	coro_sv_2cv (pTHX_ SV *sv)
		342	{
		343	HV *st;
		344	GV *gvp;
		345	return sv_2cv (sv, &st, &gvp, 0);
319	}	346	}
320		347
321	static AV *	348	static AV *
322	coro_clone_padlist (pTHX_ CV *cv)	349	coro_clone_padlist (pTHX_ CV *cv)
323	{	350	{
…		…
442	else	469	else
443	{	470	{
444	#if CORO_PREFER_PERL_FUNCTIONS	471	#if CORO_PREFER_PERL_FUNCTIONS
445	/* this is probably cleaner? but also slower! */	472	/* this is probably cleaner? but also slower! */
446	/* in practise, it seems to be less stable */	473	/* in practise, it seems to be less stable */
447	CV *cp = Perl_cv_clone (cv);	474	CV *cp = Perl_cv_clone (aTHX_ cv);
448	CvPADLIST (cv) = CvPADLIST (cp);	475	CvPADLIST (cv) = CvPADLIST (cp);
449	CvPADLIST (cp) = 0;	476	CvPADLIST (cp) = 0;
450	SvREFCNT_dec (cp);	477	SvREFCNT_dec (cp);
451	#else	478	#else
452	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	479	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
505		532
506	PUTBACK;	533	PUTBACK;
507	}	534	}
508		535
509	slf_frame = c->slf_frame;	536	slf_frame = c->slf_frame;
510	coro_throw = c->throw;	537	CORO_THROW = c->except;
511	}	538	}
512		539
513	static void	540	static void
514	save_perl (pTHX_ Coro__State c)	541	save_perl (pTHX_ Coro__State c)
515	{	542	{
516	c->throw = coro_throw;	543	c->except = CORO_THROW;
517	c->slf_frame = slf_frame;	544	c->slf_frame = slf_frame;
518		545
519	{	546	{
520	dSP;	547	dSP;
521	I32 cxix = cxstack_ix;	548	I32 cxix = cxstack_ix;
…		…
596	* of perl.c:init_stacks, except that it uses less memory	623	* of perl.c:init_stacks, except that it uses less memory
597	* on the (sometimes correct) assumption that coroutines do	624	* on the (sometimes correct) assumption that coroutines do
598	* not usually need a lot of stackspace.	625	* not usually need a lot of stackspace.
599	*/	626	*/
600	#if CORO_PREFER_PERL_FUNCTIONS	627	#if CORO_PREFER_PERL_FUNCTIONS
601	# define coro_init_stacks init_stacks	628	# define coro_init_stacks(thx) init_stacks ()
602	#else	629	#else
603	static void	630	static void
604	coro_init_stacks (pTHX)	631	coro_init_stacks (pTHX)
605	{	632	{
606	PL_curstackinfo = new_stackinfo(32, 8);	633	PL_curstackinfo = new_stackinfo(32, 8);
…		…
669	#if !PERL_VERSION_ATLEAST (5,10,0)	696	#if !PERL_VERSION_ATLEAST (5,10,0)
670	Safefree (PL_retstack);	697	Safefree (PL_retstack);
671	#endif	698	#endif
672	}	699	}
673		700
		701	#define CORO_RSS \
		702	rss += sizeof (SYM (curstackinfo)); \
		703	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		704	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		705	rss += SYM (tmps_max) * sizeof (SV *); \
		706	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		707	rss += SYM (scopestack_max) * sizeof (I32); \
		708	rss += SYM (savestack_max) * sizeof (ANY);
		709
674	static size_t	710	static size_t
675	coro_rss (pTHX_ struct coro *coro)	711	coro_rss (pTHX_ struct coro *coro)
676	{	712	{
677	size_t rss = sizeof (*coro);	713	size_t rss = sizeof (*coro);
678		714
679	if (coro->mainstack)	715	if (coro->mainstack)
680	{	716	{
681	perl_slots tmp_slot;
682	perl_slots *slot;
683
684	if (coro->flags & CF_RUNNING)	717	if (coro->flags & CF_RUNNING)
685	{	718	{
686	slot = &tmp_slot;	719	#define SYM(sym) PL_ ## sym
687		720	CORO_RSS;
688	#define VAR(name,type) slot->name = PL_ ## name;
689	# include "state.h"
690	#undef VAR	721	#undef SYM
691	}	722	}
692	else	723	else
693	slot = coro->slot;
694
695	if (slot)
696	{	724	{
697	rss += sizeof (slot->curstackinfo);	725	#define SYM(sym) coro->slot->sym
698	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	726	CORO_RSS;
699	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	727	#undef SYM
700	rss += slot->tmps_max * sizeof (SV *);
701	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
702	rss += slot->scopestack_max * sizeof (I32);
703	rss += slot->savestack_max * sizeof (ANY);
704
705	#if !PERL_VERSION_ATLEAST (5,10,0)
706	rss += slot->retstack_max * sizeof (OP *);
707	#endif
708	}	728	}
709	}	729	}
710		730
711	return rss;	731	return rss;
712	}	732	}
…		…
814	slf_check_nop (pTHX_ struct CoroSLF *frame)	834	slf_check_nop (pTHX_ struct CoroSLF *frame)
815	{	835	{
816	return 0;	836	return 0;
817	}	837	}
818		838
		839	static UNOP coro_setup_op;
		840
819	static void NOINLINE /* noinline to keep it out of the transfer fast path */	841	static void NOINLINE /* noinline to keep it out of the transfer fast path */
820	coro_setup (pTHX_ struct coro *coro)	842	coro_setup (pTHX_ struct coro *coro)
821	{	843	{
822	/*	844	/*
823	* emulate part of the perl startup here.	845	* emulate part of the perl startup here.
…		…
851	{	873	{
852	dSP;	874	dSP;
853	UNOP myop;	875	UNOP myop;
854		876
855	Zero (&myop, 1, UNOP);	877	Zero (&myop, 1, UNOP);
856	myop.op_next = Nullop;	878	myop.op_next = Nullop;
		879	myop.op_type = OP_ENTERSUB;
857	myop.op_flags = OPf_WANT_VOID;	880	myop.op_flags = OPf_WANT_VOID;
858		881
859	PUSHMARK (SP);	882	PUSHMARK (SP);
860	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	883	PUSHs ((SV *)coro->startcv);
861	PUTBACK;	884	PUTBACK;
862	PL_op = (OP *)&myop;	885	PL_op = (OP *)&myop;
863	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	886	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
864	SPAGAIN;
865	}	887	}
866		888
867	/* this newly created coroutine might be run on an existing cctx which most	889	/* this newly created coroutine might be run on an existing cctx which most
868	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	890	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
869	*/	891	*/
870	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	892	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
871	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	893	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
872		894
873	coro_throw = coro->throw;	895	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		896	coro_setup_op.op_next = PL_op;
		897	coro_setup_op.op_type = OP_CUSTOM;
		898	coro_setup_op.op_ppaddr = pp_slf;
		899	/* no flags etc. required, as an init function won't be called */
		900
		901	PL_op = (OP *)&coro_setup_op;
		902
		903	/* copy throw, in case it was set before coro_setup */
		904	CORO_THROW = coro->except;
874	}	905	}
875		906
876	static void	907	static void
877	coro_destruct (pTHX_ struct coro *coro)	908	coro_destruct (pTHX_ struct coro *coro)
878	{	909	{
…		…
902		933
903	SvREFCNT_dec (PL_diehook);	934	SvREFCNT_dec (PL_diehook);
904	SvREFCNT_dec (PL_warnhook);	935	SvREFCNT_dec (PL_warnhook);
905		936
906	SvREFCNT_dec (coro->saved_deffh);	937	SvREFCNT_dec (coro->saved_deffh);
907	SvREFCNT_dec (coro_throw);	938	SvREFCNT_dec (coro->rouse_cb);
		939	SvREFCNT_dec (coro->invoke_cb);
		940	SvREFCNT_dec (coro->invoke_av);
908		941
909	coro_destruct_stacks (aTHX);	942	coro_destruct_stacks (aTHX);
910	}	943	}
911		944
912	INLINE void	945	INLINE void
…		…
999	SAVETMPS;	1032	SAVETMPS;
1000	EXTEND (SP, 3);	1033	EXTEND (SP, 3);
1001	PUSHMARK (SP);	1034	PUSHMARK (SP);
1002	PUSHs (&PL_sv_yes);	1035	PUSHs (&PL_sv_yes);
1003	PUSHs (fullname);	1036	PUSHs (fullname);
1004	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1037	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1005	PUTBACK;	1038	PUTBACK;
1006	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1039	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1007	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1040	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1008	SPAGAIN;	1041	SPAGAIN;
1009	FREETMPS;	1042	FREETMPS;
…		…
1041		1074
1042	TAINT_NOT;	1075	TAINT_NOT;
1043	return 0;	1076	return 0;
1044	}	1077	}
1045		1078
		1079	static struct coro_cctx *cctx_ssl_cctx;
		1080	static struct CoroSLF cctx_ssl_frame;
		1081
1046	static void	1082	static void
1047	prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx)	1083	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1048	{	1084	{
1049	ta->prev = (struct coro *)cctx;	1085	ta->prev = (struct coro *)cctx_ssl_cctx;
1050	ta->next = 0;	1086	ta->next = 0;
1051	}	1087	}
1052		1088
1053	/* inject a fake call to Coro::State::_cctx_init into the execution */	1089	static int
1054	/* _cctx_init should be careful, as it could be called at almost any time */	1090	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1055	/* during execution of a perl program */	1091	{
1056	/* also initialises PL_top_env */	1092	*frame = cctx_ssl_frame;
		1093
		1094	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
		1095	}
		1096
		1097	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1057	static void NOINLINE	1098	static void NOINLINE
1058	cctx_prepare (pTHX_ coro_cctx *cctx)	1099	cctx_prepare (pTHX_ coro_cctx *cctx)
1059	{	1100	{
1060	dSP;
1061	UNOP myop;
1062
1063	PL_top_env = &PL_start_env;	1101	PL_top_env = &PL_start_env;
1064		1102
1065	if (cctx->flags & CC_TRACE)	1103	if (cctx->flags & CC_TRACE)
1066	PL_runops = runops_trace;	1104	PL_runops = runops_trace;
1067		1105
1068	Zero (&myop, 1, UNOP);	1106	/* we already must be executing an SLF op, there is no other valid way
1069	myop.op_next = PL_op;	1107	* that can lead to creation of a new cctx */
1070	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	1108	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
		1109	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1071		1110
1072	PUSHMARK (SP);	1111	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1073	EXTEND (SP, 2);	1112	cctx_ssl_cctx = cctx;
1074	PUSHs (sv_2mortal (newSViv ((IV)cctx)));	1113	cctx_ssl_frame = slf_frame;
1075	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1114
1076	PUTBACK;	1115	slf_frame.prepare = slf_prepare_set_stacklevel;
1077	PL_op = (OP *)&myop;	1116	slf_frame.check = slf_check_set_stacklevel;
1078	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1079	SPAGAIN;
1080	}	1117	}
1081		1118
1082	/* the tail of transfer: execute stuff we can only do after a transfer */	1119	/* the tail of transfer: execute stuff we can only do after a transfer */
1083	INLINE void	1120	INLINE void
1084	transfer_tail (pTHX)	1121	transfer_tail (pTHX)
…		…
1111	transfer_tail (aTHX);	1148	transfer_tail (aTHX);
1112		1149
1113	/* somebody or something will hit me for both perl_run and PL_restartop */	1150	/* somebody or something will hit me for both perl_run and PL_restartop */
1114	PL_restartop = PL_op;	1151	PL_restartop = PL_op;
1115	perl_run (PL_curinterp);	1152	perl_run (PL_curinterp);
		1153	/*
		1154	* Unfortunately, there is no way to get at the return values of the
		1155	* coro body here, as perl_run destroys these
		1156	*/
1116		1157
1117	/*	1158	/*
1118	* If perl-run returns we assume exit() was being called or the coro	1159	* If perl-run returns we assume exit() was being called or the coro
1119	* fell off the end, which seems to be the only valid (non-bug)	1160	* fell off the end, which seems to be the only valid (non-bug)
1120	* reason for perl_run to return. We try to exit by jumping to the	1161	* reason for perl_run to return. We try to exit by jumping to the
…		…
1300	dSTACKLEVEL;	1341	dSTACKLEVEL;
1301		1342
1302	/* sometimes transfer is only called to set idle_sp */	1343	/* sometimes transfer is only called to set idle_sp */
1303	if (expect_false (!next))	1344	if (expect_false (!next))
1304	{	1345	{
1305	((coro_cctx *)prev)->idle_sp = (void *)stacklevel;	1346	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1306	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1347	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1307	}	1348	}
1308	else if (expect_true (prev != next))	1349	else if (expect_true (prev != next))
1309	{	1350	{
1310	coro_cctx *prev__cctx;	1351	coro_cctx *prev__cctx;
…		…
1335		1376
1336	prev__cctx = prev->cctx;	1377	prev__cctx = prev->cctx;
1337		1378
1338	/* possibly untie and reuse the cctx */	1379	/* possibly untie and reuse the cctx */
1339	if (expect_true (	1380	if (expect_true (
1340	prev__cctx->idle_sp == (void *)stacklevel	1381	prev__cctx->idle_sp == STACKLEVEL
1341	&& !(prev__cctx->flags & CC_TRACE)	1382	&& !(prev__cctx->flags & CC_TRACE)
1342	&& !force_cctx	1383	&& !force_cctx
1343	))	1384	))
1344	{	1385	{
1345	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1386	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
…		…
1412		1453
1413	coro->slot = 0;	1454	coro->slot = 0;
1414	}	1455	}
1415		1456
1416	cctx_destroy (coro->cctx);	1457	cctx_destroy (coro->cctx);
		1458	SvREFCNT_dec (coro->startcv);
1417	SvREFCNT_dec (coro->args);	1459	SvREFCNT_dec (coro->args);
		1460	SvREFCNT_dec (CORO_THROW);
1418		1461
1419	if (coro->next) coro->next->prev = coro->prev;	1462	if (coro->next) coro->next->prev = coro->prev;
1420	if (coro->prev) coro->prev->next = coro->next;	1463	if (coro->prev) coro->prev->next = coro->next;
1421	if (coro == coro_first) coro_first = coro->next;	1464	if (coro == coro_first) coro_first = coro->next;
1422		1465
…		…
1476		1519
1477	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1520	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1478	TRANSFER (ta, 1);	1521	TRANSFER (ta, 1);
1479	}	1522	}
1480		1523
		1524	/*****************************************************************************/
		1525	/* gensub: simple closure generation utility */
		1526
		1527	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1528
		1529	/* create a closure from XS, returns a code reference */
		1530	/* the arg can be accessed via GENSUB_ARG from the callback */
		1531	/* the callback must use dXSARGS/XSRETURN */
		1532	static SV *
		1533	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
		1534	{
		1535	CV *cv = (CV *)newSV (0);
		1536
		1537	sv_upgrade ((SV *)cv, SVt_PVCV);
		1538
		1539	CvANON_on (cv);
		1540	CvISXSUB_on (cv);
		1541	CvXSUB (cv) = xsub;
		1542	GENSUB_ARG = arg;
		1543
		1544	return newRV_noinc ((SV *)cv);
		1545	}
		1546
1481	/** Coro ********************************************************************/	1547	/** Coro ********************************************************************/
1482		1548
1483	INLINE void	1549	INLINE void
1484	coro_enq (pTHX_ struct coro *coro)	1550	coro_enq (pTHX_ struct coro *coro)
1485	{	1551	{
…		…
1528	ENTER;	1594	ENTER;
1529	SAVETMPS;	1595	SAVETMPS;
1530		1596
1531	PUSHMARK (SP);	1597	PUSHMARK (SP);
1532	PUTBACK;	1598	PUTBACK;
1533	call_sv (sv_hook, G_DISCARD);	1599	call_sv (sv_hook, G_VOID | G_DISCARD);
1534	SPAGAIN;
1535		1600
1536	FREETMPS;	1601	FREETMPS;
1537	LEAVE;	1602	LEAVE;
1538	}	1603	}
1539		1604
…		…
1566	ENTER;	1631	ENTER;
1567	SAVETMPS;	1632	SAVETMPS;
1568		1633
1569	PUSHMARK (SP);	1634	PUSHMARK (SP);
1570	PUTBACK;	1635	PUTBACK;
1571	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1636	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1572	SPAGAIN;
1573		1637
1574	FREETMPS;	1638	FREETMPS;
1575	LEAVE;	1639	LEAVE;
1576	continue;	1640	continue;
1577	}	1641	}
…		…
1687	coro->slot->runops = RUNOPS_DEFAULT;	1751	coro->slot->runops = RUNOPS_DEFAULT;
1688	}	1752	}
1689	}	1753	}
1690		1754
1691	/*****************************************************************************/	1755	/*****************************************************************************/
		1756	/* async pool handler */
		1757
		1758	static int
		1759	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1760	{
		1761	HV *hv = (HV *)SvRV (coro_current);
		1762	struct coro *coro = (struct coro *)frame->data;
		1763
		1764	if (!coro->invoke_cb)
		1765	return 1; /* loop till we have invoke */
		1766	else
		1767	{
		1768	hv_store (hv, "desc", sizeof ("desc") - 1,
		1769	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1770
		1771	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1772
		1773	{
		1774	dSP;
		1775	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1776	PUTBACK;
		1777	}
		1778
		1779	SvREFCNT_dec (GvAV (PL_defgv));
		1780	GvAV (PL_defgv) = coro->invoke_av;
		1781	coro->invoke_av = 0;
		1782
		1783	return 0;
		1784	}
		1785	}
		1786
		1787	static void
		1788	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1789	{
		1790	HV *hv = (HV *)SvRV (coro_current);
		1791	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1792
		1793	if (expect_true (coro->saved_deffh))
		1794	{
		1795	/* subsequent iteration */
		1796	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1797	coro->saved_deffh = 0;
		1798
		1799	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1800	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1801	{
		1802	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1803	coro->invoke_av = newAV ();
		1804
		1805	frame->prepare = prepare_nop;
		1806	}
		1807	else
		1808	{
		1809	av_clear (GvAV (PL_defgv));
		1810	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1811
		1812	coro->prio = 0;
		1813
		1814	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1815	api_trace (aTHX_ coro_current, 0);
		1816
		1817	frame->prepare = prepare_schedule;
		1818	av_push (av_async_pool, SvREFCNT_inc (hv));
		1819	}
		1820	}
		1821	else
		1822	{
		1823	/* first iteration, simply fall through */
		1824	frame->prepare = prepare_nop;
		1825	}
		1826
		1827	frame->check = slf_check_pool_handler;
		1828	frame->data = (void *)coro;
		1829	}
		1830
		1831	/*****************************************************************************/
		1832	/* rouse callback */
		1833
		1834	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1835
		1836	static void
		1837	coro_rouse_callback (pTHX_ CV *cv)
		1838	{
		1839	dXSARGS;
		1840	SV *data = (SV *)GENSUB_ARG;
		1841
		1842	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1843	{
		1844	/* first call, set args */
		1845	AV *av = newAV ();
		1846	SV *coro = SvRV (data);
		1847
		1848	SvRV_set (data, (SV *)av);
		1849	api_ready (aTHX_ coro);
		1850	SvREFCNT_dec (coro);
		1851
		1852	/* better take a full copy of the arguments */
		1853	while (items--)
		1854	av_store (av, items, newSVsv (ST (items)));
		1855	}
		1856
		1857	XSRETURN_EMPTY;
		1858	}
		1859
		1860	static int
		1861	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1862	{
		1863	SV *data = (SV *)frame->data;
		1864
		1865	if (CORO_THROW)
		1866	return 0;
		1867
		1868	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1869	return 1;
		1870
		1871	/* now push all results on the stack */
		1872	{
		1873	dSP;
		1874	AV *av = (AV *)SvRV (data);
		1875	int i;
		1876
		1877	EXTEND (SP, AvFILLp (av) + 1);
		1878	for (i = 0; i <= AvFILLp (av); ++i)
		1879	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1880
		1881	/* we have stolen the elements, so ste length to zero and free */
		1882	AvFILLp (av) = -1;
		1883	av_undef (av);
		1884
		1885	PUTBACK;
		1886	}
		1887
		1888	return 0;
		1889	}
		1890
		1891	static void
		1892	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1893	{
		1894	SV *cb;
		1895
		1896	if (items)
		1897	cb = arg [0];
		1898	else
		1899	{
		1900	struct coro *coro = SvSTATE_current;
		1901
		1902	if (!coro->rouse_cb)
		1903	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1904
		1905	cb = sv_2mortal (coro->rouse_cb);
		1906	coro->rouse_cb = 0;
		1907	}
		1908
		1909	if (!SvROK (cb)
		1910	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		1911	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1912	croak ("Coro::rouse_wait called with illegal callback argument,");
		1913
		1914	{
		1915	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		1916	SV *data = (SV *)GENSUB_ARG;
		1917
		1918	frame->data = (void *)data;
		1919	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		1920	frame->check = slf_check_rouse_wait;
		1921	}
		1922	}
		1923
		1924	static SV *
		1925	coro_new_rouse_cb (pTHX)
		1926	{
		1927	HV *hv = (HV *)SvRV (coro_current);
		1928	struct coro *coro = SvSTATE_hv (hv);
		1929	SV *data = newRV_inc ((SV *)hv);
		1930	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		1931
		1932	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		1933	SvREFCNT_dec (data); /* magicext increases the refcount */
		1934
		1935	SvREFCNT_dec (coro->rouse_cb);
		1936	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		1937
		1938	return cb;
		1939	}
		1940
		1941	/*****************************************************************************/
1692	/* schedule-like-function opcode (SLF) */	1942	/* schedule-like-function opcode (SLF) */
1693		1943
1694	static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */	1944	static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1695	static const CV *slf_cv;	1945	static const CV *slf_cv;
1696	static SV **slf_argv;	1946	static SV **slf_argv;
…		…
1717		1967
1718	RETURNOP (slf_restore.op_first);	1968	RETURNOP (slf_restore.op_first);
1719	}	1969	}
1720		1970
1721	static void	1971	static void
1722	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1723	{
1724	prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1725	}
1726
1727	static void
1728	slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1729	{
1730	assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1731
1732	frame->prepare = slf_prepare_set_stacklevel;
1733	frame->check = slf_check_nop;
1734	frame->data = (void *)SvIV (arg [0]);
1735	}
1736
1737	static void
1738	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)	1972	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1739	{	1973	{
1740	SV **arg = (SV **)slf_frame.data;	1974	SV **arg = (SV **)slf_frame.data;
1741		1975
1742	prepare_transfer (aTHX_ ta, arg [0], arg [1]);	1976	prepare_transfer (aTHX_ ta, arg [0], arg [1]);
…		…
1771	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2005	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1772	{	2006	{
1773	frame->prepare = prepare_cede_notself;	2007	frame->prepare = prepare_cede_notself;
1774	frame->check = slf_check_nop;	2008	frame->check = slf_check_nop;
1775	}	2009	}
1776
1777	/* we hijack an hopefully unused CV flag for our purposes */
1778	#define CVf_SLF 0x4000
1779		2010
1780	/*	2011	/*
1781	* these not obviously related functions are all rolled into one	2012	* these not obviously related functions are all rolled into one
1782	* function to increase chances that they all will call transfer with the same	2013	* function to increase chances that they all will call transfer with the same
1783	* stack offset	2014	* stack offset
…		…
1839	}	2070	}
1840	while (slf_frame.check (aTHX_ &slf_frame));	2071	while (slf_frame.check (aTHX_ &slf_frame));
1841		2072
1842	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2073	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843		2074
1844	/* return value handling - mostly like entersub */
1845	{
1846	dSP;
1847	SV **bot = PL_stack_base + checkmark;
1848	int gimme = GIMME_V;
1849
1850	/* make sure we put something on the stack in scalar context */
1851	if (gimme == G_SCALAR)
1852	{
1853	if (sp == bot)
1854	XPUSHs (&PL_sv_undef);
1855
1856	SP = bot + 1;
1857	}
1858
1859	PUTBACK;
1860	}
1861
1862	/* exception handling */	2075	/* exception handling */
1863	if (expect_false (coro_throw))	2076	if (expect_false (CORO_THROW))
1864	{	2077	{
1865	SV *exception = sv_2mortal (coro_throw);	2078	SV *exception = sv_2mortal (CORO_THROW);
1866		2079
1867	coro_throw = 0;	2080	CORO_THROW = 0;
1868	sv_setsv (ERRSV, exception);	2081	sv_setsv (ERRSV, exception);
1869	croak (0);	2082	croak (0);
		2083	}
		2084
		2085	/* return value handling - mostly like entersub */
		2086	/* make sure we put something on the stack in scalar context */
		2087	if (GIMME_V == G_SCALAR)
		2088	{
		2089	dSP;
		2090	SV **bot = PL_stack_base + checkmark;
		2091
		2092	if (sp == bot) /* too few, push undef */
		2093	bot [1] = &PL_sv_undef;
		2094	else if (sp != bot + 1) /* too many, take last one */
		2095	bot [1] = *sp;
		2096
		2097	SP = bot + 1;
		2098
		2099	PUTBACK;
1870	}	2100	}
1871		2101
1872	return NORMAL;	2102	return NORMAL;
1873	}	2103	}
1874		2104
…		…
1996	PerlIOBuf_get_cnt,	2226	PerlIOBuf_get_cnt,
1997	PerlIOBuf_set_ptrcnt,	2227	PerlIOBuf_set_ptrcnt,
1998	};	2228	};
1999		2229
2000	/*****************************************************************************/	2230	/*****************************************************************************/
		2231	/* Coro::Semaphore & Coro::Signal */
		2232
		2233	static SV *
		2234	coro_waitarray_new (pTHX_ int count)
		2235	{
		2236	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2237	AV *av = newAV ();
		2238	SV **ary;
		2239
		2240	/* unfortunately, building manually saves memory */
		2241	Newx (ary, 2, SV *);
		2242	AvALLOC (av) = ary;
		2243	/*AvARRAY (av) = ary;*/
		2244	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2245	AvMAX (av) = 1;
		2246	AvFILLp (av) = 0;
		2247	ary [0] = newSViv (count);
		2248
		2249	return newRV_noinc ((SV *)av);
		2250	}
		2251
2001	/* Coro::Semaphore */	2252	/* semaphore */
2002		2253
2003	static void	2254	static void
2004	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2255	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2005	{	2256	{
2006	SV *count_sv = AvARRAY (av)[0];	2257	SV *count_sv = AvARRAY (av)[0];
…		…
2018	AvARRAY (av)[0] = AvARRAY (av)[1];	2269	AvARRAY (av)[0] = AvARRAY (av)[1];
2019	AvARRAY (av)[1] = count_sv;	2270	AvARRAY (av)[1] = count_sv;
2020	cb = av_shift (av);	2271	cb = av_shift (av);
2021		2272
2022	if (SvOBJECT (cb))	2273	if (SvOBJECT (cb))
		2274	{
2023	api_ready (aTHX_ cb);	2275	api_ready (aTHX_ cb);
2024	else	2276	--count;
2025	croak ("callbacks not yet supported");	2277	}
		2278	else if (SvTYPE (cb) == SVt_PVCV)
		2279	{
		2280	dSP;
		2281	PUSHMARK (SP);
		2282	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2283	PUTBACK;
		2284	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2285	}
2026		2286
2027	SvREFCNT_dec (cb);	2287	SvREFCNT_dec (cb);
2028
2029	--count;
2030	}	2288	}
2031	}	2289	}
2032		2290
2033	static void	2291	static void
2034	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2292	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2036	/* call $sem->adjust (0) to possibly wake up some other waiters */	2294	/* call $sem->adjust (0) to possibly wake up some other waiters */
2037	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2295	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2038	}	2296	}
2039		2297
2040	static int	2298	static int
2041	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2299	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2042	{	2300	{
2043	AV *av = (AV *)frame->data;	2301	AV *av = (AV *)frame->data;
2044	SV *count_sv = AvARRAY (av)[0];	2302	SV *count_sv = AvARRAY (av)[0];
2045		2303
		2304	/* if we are about to throw, don't actually acquire the lock, just throw */
		2305	if (CORO_THROW)
		2306	return 0;
2046	if (SvIVX (count_sv) > 0)	2307	else if (SvIVX (count_sv) > 0)
2047	{	2308	{
2048	SvSTATE_current->on_destroy = 0;	2309	SvSTATE_current->on_destroy = 0;
		2310
		2311	if (acquire)
2049	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2312	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2313	else
		2314	coro_semaphore_adjust (aTHX_ av, 0);
		2315
2050	return 0;	2316	return 0;
2051	}	2317	}
2052	else	2318	else
2053	{	2319	{
2054	int i;	2320	int i;
…		…
2063	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2329	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2064	return 1;	2330	return 1;
2065	}	2331	}
2066	}	2332	}
2067		2333
2068	static void	2334	static int
		2335	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2336	{
		2337	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2338	}
		2339
		2340	static int
		2341	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2342	{
		2343	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2344	}
		2345
		2346	static void
2069	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2347	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2070	{	2348	{
2071	AV *av = (AV *)SvRV (arg [0]);	2349	AV *av = (AV *)SvRV (arg [0]);
2072		2350
2073	if (SvIVX (AvARRAY (av)[0]) > 0)	2351	if (SvIVX (AvARRAY (av)[0]) > 0)
2074	{	2352	{
2075	frame->data = (void *)av;	2353	frame->data = (void *)av;
2076	frame->prepare = prepare_nop;	2354	frame->prepare = prepare_nop;
2077	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2078	}	2355	}
2079	else	2356	else
2080	{	2357	{
2081	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2358	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2082		2359
2083	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2360	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2084	frame->prepare = prepare_schedule;	2361	frame->prepare = prepare_schedule;
2085		2362
2086	/* to avoid race conditions when a woken-up coro gets terminated */	2363	/* to avoid race conditions when a woken-up coro gets terminated */
2087	/* we arrange for a temporary on_destroy that calls adjust (0) */	2364	/* we arrange for a temporary on_destroy that calls adjust (0) */
2088	assert (!SvSTATE_current->on_destroy);//D
2089	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2365	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090	}	2366	}
		2367	}
2091		2368
		2369	static void
		2370	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2371	{
		2372	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092	frame->check = slf_check_semaphore_down;	2373	frame->check = slf_check_semaphore_down;
2093
2094	}	2374	}
2095		2375
2096	/*****************************************************************************/	2376	static void
2097	/* gensub: simple closure generation utility */	2377	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	{	2378	{
2107	CV *cv = (CV *)newSV (0);	2379	if (items >= 2)
		2380	{
		2381	/* callback form */
		2382	AV *av = (AV *)SvRV (arg [0]);
		2383	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108		2384
2109	sv_upgrade ((SV *)cv, SVt_PVCV);	2385	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110		2386
2111	CvANON_on (cv);	2387	if (SvIVX (AvARRAY (av)[0]) > 0)
2112	CvISXSUB_on (cv);	2388	coro_semaphore_adjust (aTHX_ av, 0);
2113	CvXSUB (cv) = xsub;
2114	GENSUB_ARG = arg;
2115		2389
2116	return newRV_noinc ((SV *)cv);	2390	frame->prepare = prepare_nop;
		2391	frame->check = slf_check_nop;
		2392	}
		2393	else
		2394	{
		2395	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2396	frame->check = slf_check_semaphore_wait;
		2397	}
		2398	}
		2399
		2400	/* signal */
		2401
		2402	static void
		2403	coro_signal_wake (pTHX_ AV *av, int count)
		2404	{
		2405	SvIVX (AvARRAY (av)[0]) = 0;
		2406
		2407	/* now signal count waiters */
		2408	while (count > 0 && AvFILLp (av) > 0)
		2409	{
		2410	SV *cb;
		2411
		2412	/* swap first two elements so we can shift a waiter */
		2413	cb = AvARRAY (av)[0];
		2414	AvARRAY (av)[0] = AvARRAY (av)[1];
		2415	AvARRAY (av)[1] = cb;
		2416
		2417	cb = av_shift (av);
		2418
		2419	api_ready (aTHX_ cb);
		2420	sv_setiv (cb, 0); /* signal waiter */
		2421	SvREFCNT_dec (cb);
		2422
		2423	--count;
		2424	}
		2425	}
		2426
		2427	static int
		2428	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2429	{
		2430	/* if we are about to throw, also stop waiting */
		2431	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2432	}
		2433
		2434	static void
		2435	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2436	{
		2437	AV *av = (AV *)SvRV (arg [0]);
		2438
		2439	if (SvIVX (AvARRAY (av)[0]))
		2440	{
		2441	SvIVX (AvARRAY (av)[0]) = 0;
		2442	frame->prepare = prepare_nop;
		2443	frame->check = slf_check_nop;
		2444	}
		2445	else
		2446	{
		2447	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2448
		2449	av_push (av, waiter);
		2450
		2451	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2452	frame->prepare = prepare_schedule;
		2453	frame->check = slf_check_signal_wait;
		2454	}
2117	}	2455	}
2118		2456
2119	/*****************************************************************************/	2457	/*****************************************************************************/
2120	/* Coro::AIO */	2458	/* Coro::AIO */
2121		2459
…		…
2136	dXSARGS;	2474	dXSARGS;
2137	AV *state = (AV *)GENSUB_ARG;	2475	AV *state = (AV *)GENSUB_ARG;
2138	SV *coro = av_pop (state);	2476	SV *coro = av_pop (state);
2139	SV *data_sv = newSV (sizeof (struct io_state));	2477	SV *data_sv = newSV (sizeof (struct io_state));
2140		2478
2141	av_extend (state, items);	2479	av_extend (state, items - 1);
2142		2480
2143	sv_upgrade (data_sv, SVt_PV);	2481	sv_upgrade (data_sv, SVt_PV);
2144	SvCUR_set (data_sv, sizeof (struct io_state));	2482	SvCUR_set (data_sv, sizeof (struct io_state));
2145	SvPOK_only (data_sv);	2483	SvPOK_only (data_sv);
2146		2484
…		…
2170		2508
2171	static int	2509	static int
2172	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2510	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173	{	2511	{
2174	AV *state = (AV *)frame->data;	2512	AV *state = (AV *)frame->data;
		2513
		2514	/* if we are about to throw, return early */
		2515	/* this does not cancel the aio request, but at least */
		2516	/* it quickly returns */
		2517	if (CORO_THROW)
		2518	return 0;
2175		2519
2176	/* one element that is an RV? repeat! */	2520	/* one element that is an RV? repeat! */
2177	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2521	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2178	return 1;	2522	return 1;
2179		2523
…		…
2350	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2694	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2351	}	2695	}
2352		2696
2353	SV *	2697	SV *
2354	new (char *klass, ...)	2698	new (char *klass, ...)
		2699	ALIAS:
		2700	Coro::new = 1
2355	CODE:	2701	CODE:
2356	{	2702	{
2357	struct coro *coro;	2703	struct coro *coro;
2358	MAGIC *mg;	2704	MAGIC *mg;
2359	HV *hv;	2705	HV *hv;
		2706	CV *cb;
2360	int i;	2707	int i;
		2708
		2709	if (items > 1)
		2710	{
		2711	cb = coro_sv_2cv (aTHX_ ST (1));
		2712
		2713	if (!ix)
		2714	{
		2715	if (CvISXSUB (cb))
		2716	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2717
		2718	if (!CvROOT (cb))
		2719	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2720	}
		2721	}
2361		2722
2362	Newz (0, coro, 1, struct coro);	2723	Newz (0, coro, 1, struct coro);
2363	coro->args = newAV ();	2724	coro->args = newAV ();
2364	coro->flags = CF_NEW;	2725	coro->flags = CF_NEW;
2365		2726
…		…
2370	coro->hv = hv = newHV ();	2731	coro->hv = hv = newHV ();
2371	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2732	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2372	mg->mg_flags |= MGf_DUP;	2733	mg->mg_flags |= MGf_DUP;
2373	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2734	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374		2735
		2736	if (items > 1)
		2737	{
2375	av_extend (coro->args, items - 1);	2738	av_extend (coro->args, items - 1 + ix - 1);
		2739
		2740	if (ix)
		2741	{
		2742	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2743	cb = cv_coro_run;
		2744	}
		2745
		2746	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2747
2376	for (i = 1; i < items; i++)	2748	for (i = 2; i < items; i++)
2377	av_push (coro->args, newSVsv (ST (i)));	2749	av_push (coro->args, newSVsv (ST (i)));
		2750	}
2378	}	2751	}
2379	OUTPUT:	2752	OUTPUT:
2380	RETVAL	2753	RETVAL
2381
2382	void
2383	_set_stacklevel (...)
2384	CODE:
2385	CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2386		2754
2387	void	2755	void
2388	transfer (...)	2756	transfer (...)
2389	PROTOTYPE: $$	2757	PROTOTYPE: $$
2390	CODE:	2758	CODE:
…		…
2516	throw (Coro::State self, SV *throw = &PL_sv_undef)	2884	throw (Coro::State self, SV *throw = &PL_sv_undef)
2517	PROTOTYPE: $;$	2885	PROTOTYPE: $;$
2518	CODE:	2886	CODE:
2519	{	2887	{
2520	struct coro *current = SvSTATE_current;	2888	struct coro *current = SvSTATE_current;
2521	SV **throwp = self == current ? &coro_throw : &self->throw;	2889	SV **throwp = self == current ? &CORO_THROW : &self->except;
2522	SvREFCNT_dec (*throwp);	2890	SvREFCNT_dec (*throwp);
2523	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2891	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2524	}	2892	}
2525		2893
2526	void	2894	void
…		…
2585		2953
2586	BOOT:	2954	BOOT:
2587	{	2955	{
2588	int i;	2956	int i;
2589		2957
2590	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	2958	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2591	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2959	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2592	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2960	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2593		2961	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		2962	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2594	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2963	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2595	SvREADONLY_on (coro_current);	2964
		2965	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		2966	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		2967	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		2968	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2596		2969
2597	coro_stash = gv_stashpv ("Coro", TRUE);	2970	coro_stash = gv_stashpv ("Coro", TRUE);
2598		2971
2599	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2972	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2600	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	2973	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2615	coroapi.ready = api_ready;	2988	coroapi.ready = api_ready;
2616	coroapi.is_ready = api_is_ready;	2989	coroapi.is_ready = api_is_ready;
2617	coroapi.nready = coro_nready;	2990	coroapi.nready = coro_nready;
2618	coroapi.current = coro_current;	2991	coroapi.current = coro_current;
2619		2992
2620	GCoroAPI = &coroapi;	2993	/*GCoroAPI = &coroapi;*/
2621	sv_setiv (sv, (IV)&coroapi);	2994	sv_setiv (sv, (IV)&coroapi);
2622	SvREADONLY_on (sv);	2995	SvREADONLY_on (sv);
2623	}	2996	}
2624	}	2997	}
2625		2998
…		…
2689	CODE:	3062	CODE:
2690	RETVAL = coro_nready;	3063	RETVAL = coro_nready;
2691	OUTPUT:	3064	OUTPUT:
2692	RETVAL	3065	RETVAL
2693		3066
2694	# for async_pool speedup
2695	void	3067	void
2696	_pool_1 (SV *cb)	3068	_pool_handler (...)
2697	CODE:	3069	CODE:
2698	{	3070	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2699	HV *hv = (HV *)SvRV (coro_current);
2700	struct coro *coro = SvSTATE_hv ((SV *)hv);
2701	AV *defav = GvAV (PL_defgv);
2702	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2703	AV *invoke_av;
2704	int i, len;
2705		3071
2706	if (!invoke)	3072	void
		3073	async_pool (SV *cv, ...)
		3074	PROTOTYPE: &@
		3075	PPCODE:
		3076	{
		3077	HV *hv = (HV *)av_pop (av_async_pool);
		3078	AV *av = newAV ();
		3079	SV *cb = ST (0);
		3080	int i;
		3081
		3082	av_extend (av, items - 2);
		3083	for (i = 1; i < items; ++i)
		3084	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3085
		3086	if ((SV *)hv == &PL_sv_undef)
2707	{	3087	{
2708	SV *old = PL_diehook;	3088	PUSHMARK (SP);
2709	PL_diehook = 0;	3089	EXTEND (SP, 2);
2710	SvREFCNT_dec (old);	3090	PUSHs (sv_Coro);
2711	croak ("\3async_pool terminate\2\n");	3091	PUSHs ((SV *)cv_pool_handler);
		3092	PUTBACK;
		3093	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3094	SPAGAIN;
		3095
		3096	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2712	}	3097	}
2713		3098
2714	SvREFCNT_dec (coro->saved_deffh);
2715	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2716
2717	hv_store (hv, "desc", sizeof ("desc") - 1,
2718	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2719
2720	invoke_av = (AV *)SvRV (invoke);
2721	len = av_len (invoke_av);
2722
2723	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2724
2725	if (len > 0)
2726	{	3099	{
2727	av_fill (defav, len - 1);	3100	struct coro *coro = SvSTATE_hv (hv);
2728	for (i = 0; i < len; ++i)	3101
2729	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3102	assert (!coro->invoke_cb);
		3103	assert (!coro->invoke_av);
		3104	coro->invoke_cb = SvREFCNT_inc (cb);
		3105	coro->invoke_av = av;
2730	}	3106	}
		3107
		3108	api_ready (aTHX_ (SV *)hv);
		3109
		3110	if (GIMME_V != G_VOID)
		3111	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3112	else
		3113	SvREFCNT_dec (hv);
2731	}	3114	}
		3115
		3116	SV *
		3117	rouse_cb ()
		3118	PROTOTYPE:
		3119	CODE:
		3120	RETVAL = coro_new_rouse_cb (aTHX);
		3121	OUTPUT:
		3122	RETVAL
2732		3123
2733	void	3124	void
2734	_pool_2 (SV *cb)	3125	rouse_wait (...)
		3126	PROTOTYPE: ;$
2735	CODE:	3127	PPCODE:
2736	{	3128	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2737	HV *hv = (HV *)SvRV (coro_current);
2738	struct coro *coro = SvSTATE_hv ((SV *)hv);
2739
2740	sv_setsv (cb, &PL_sv_undef);
2741
2742	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2743	coro->saved_deffh = 0;
2744
2745	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2746	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2747	{
2748	SV *old = PL_diehook;
2749	PL_diehook = 0;
2750	SvREFCNT_dec (old);
2751	croak ("\3async_pool terminate\2\n");
2752	}
2753
2754	av_clear (GvAV (PL_defgv));
2755	hv_store (hv, "desc", sizeof ("desc") - 1,
2756	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2757
2758	coro->prio = 0;
2759
2760	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2761	api_trace (aTHX_ coro_current, 0);
2762
2763	av_push (av_async_pool, newSVsv (coro_current));
2764	}
2765		3129
2766		3130
2767	MODULE = Coro::State PACKAGE = PerlIO::cede	3131	MODULE = Coro::State PACKAGE = PerlIO::cede
2768		3132
2769	BOOT:	3133	BOOT:
…		…
2771		3135
2772		3136
2773	MODULE = Coro::State PACKAGE = Coro::Semaphore	3137	MODULE = Coro::State PACKAGE = Coro::Semaphore
2774		3138
2775	SV *	3139	SV *
2776	new (SV *klass, SV *count_ = 0)	3140	new (SV *klass, SV *count = 0)
2777	CODE:	3141	CODE:
2778	{	3142	RETVAL = sv_bless (
2779	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3143	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2780	AV *av = newAV ();	3144	GvSTASH (CvGV (cv))
2781	av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1));	3145	);
2782	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));	3146	OUTPUT:
2783	}	3147	RETVAL
		3148
		3149	# helper for Coro::Channel
		3150	SV *
		3151	_alloc (int count)
		3152	CODE:
		3153	RETVAL = coro_waitarray_new (aTHX_ count);
2784	OUTPUT:	3154	OUTPUT:
2785	RETVAL	3155	RETVAL
2786		3156
2787	SV *	3157	SV *
2788	count (SV *self)	3158	count (SV *self)
…		…
2797	adjust = 1	3167	adjust = 1
2798	CODE:	3168	CODE:
2799	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3169	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2800		3170
2801	void	3171	void
2802	down (SV *self)	3172	down (...)
2803	CODE:	3173	CODE:
2804	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3174	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3175
		3176	void
		3177	wait (...)
		3178	CODE:
		3179	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2805		3180
2806	void	3181	void
2807	try (SV *self)	3182	try (SV *self)
2808	PPCODE:	3183	PPCODE:
2809	{	3184	{
…		…
2821	XSRETURN_NO;	3196	XSRETURN_NO;
2822	}	3197	}
2823		3198
2824	void	3199	void
2825	waiters (SV *self)	3200	waiters (SV *self)
2826	CODE:	3201	PPCODE:
2827	{	3202	{
2828	AV *av = (AV *)SvRV (self);	3203	AV *av = (AV *)SvRV (self);
		3204	int wcount = AvFILLp (av) + 1 - 1;
2829		3205
2830	if (GIMME_V == G_SCALAR)	3206	if (GIMME_V == G_SCALAR)
2831	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3207	XPUSHs (sv_2mortal (newSViv (wcount)));
2832	else	3208	else
2833	{	3209	{
2834	int i;	3210	int i;
2835	EXTEND (SP, AvFILLp (av) + 1 - 1);	3211	EXTEND (SP, wcount);
2836	for (i = 1; i <= AvFILLp (av); ++i)	3212	for (i = 1; i <= wcount; ++i)
2837	PUSHs (newSVsv (AvARRAY (av)[i]));	3213	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2838	}	3214	}
2839	}	3215	}
		3216
		3217	MODULE = Coro::State PACKAGE = Coro::Signal
		3218
		3219	SV *
		3220	new (SV *klass)
		3221	CODE:
		3222	RETVAL = sv_bless (
		3223	coro_waitarray_new (aTHX_ 0),
		3224	GvSTASH (CvGV (cv))
		3225	);
		3226	OUTPUT:
		3227	RETVAL
		3228
		3229	void
		3230	wait (...)
		3231	CODE:
		3232	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3233
		3234	void
		3235	broadcast (SV *self)
		3236	CODE:
		3237	{
		3238	AV *av = (AV *)SvRV (self);
		3239	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3240	}
		3241
		3242	void
		3243	send (SV *self)
		3244	CODE:
		3245	{
		3246	AV *av = (AV *)SvRV (self);
		3247
		3248	if (AvFILLp (av))
		3249	coro_signal_wake (aTHX_ av, 1);
		3250	else
		3251	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3252	}
		3253
		3254	IV
		3255	awaited (SV *self)
		3256	CODE:
		3257	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3258	OUTPUT:
		3259	RETVAL
2840		3260
2841		3261
2842	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3262	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2843		3263
2844	BOOT:	3264	BOOT:
…		…
2859	sv_setsv (sv_activity, &PL_sv_undef);	3279	sv_setsv (sv_activity, &PL_sv_undef);
2860	if (coro_nready >= incede)	3280	if (coro_nready >= incede)
2861	{	3281	{
2862	PUSHMARK (SP);	3282	PUSHMARK (SP);
2863	PUTBACK;	3283	PUTBACK;
2864	call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);	3284	call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2865	SPAGAIN;
2866	}	3285	}
2867		3286
2868	--incede;	3287	--incede;
2869	}	3288	}
2870		3289
…		…
2873		3292
2874	void	3293	void
2875	_register (char *target, char *proto, SV *req)	3294	_register (char *target, char *proto, SV *req)
2876	CODE:	3295	CODE:
2877	{	3296	{
2878	HV *st;	3297	CV *req_cv = coro_sv_2cv (aTHX_ req);
2879	GV *gvp;
2880	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2881	/* newXSproto doesn't return the CV on 5.8 */	3298	/* newXSproto doesn't return the CV on 5.8 */
2882	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3299	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2883	sv_setpv ((SV *)slf_cv, proto);	3300	sv_setpv ((SV *)slf_cv, proto);
2884	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3301	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2885	}	3302	}

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