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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.290 by root, Tue Nov 18 05:51:38 2008 UTC vs.
Revision 1.327 by root, Mon Nov 24 06:07:16 2008 UTC

…		…
16		16
17	#ifdef WIN32	17	#ifdef WIN32
18	# undef setjmp	18	# undef setjmp
19	# undef longjmp	19	# undef longjmp
20	# undef _exit	20	# undef _exit
21	# define setjmp _setjmp // deep magic, don't ask	21	# define setjmp _setjmp /* deep magic */
22	#else	22	#else
23	# include <inttypes.h> /* most portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
24	#endif	24	#endif
25		25
26	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
120	#endif	126	#endif
121		127
122	/* The next macros try to return the current stack pointer, in an as	128	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	129	* portable way as possible. */
124	#if __GNUC__ >= 4	130	#if __GNUC__ >= 4
		131	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	132	# define STACKLEVEL __builtin_frame_address (0)
126	#else	133	#else
127	# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
		135	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	136	#endif
129		137
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		139
132	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	151	#define expect_true(expr) expect ((expr) != 0, 1)
144		152
145	#define NOINLINE attribute ((noinline))	153	#define NOINLINE attribute ((noinline))
146		154
147	#include "CoroAPI.h"	155	#include "CoroAPI.h"
		156	#define GCoroAPI (&coroapi) /* very sneaky */
148		157
149	#ifdef USE_ITHREADS	158	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	159	# if CORO_PTHREAD
151	static void *coro_thx;	160	static void *coro_thx;
152	# endif	161	# endif
…		…
164	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
165	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
166	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
167	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
168		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
		181
169	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
170	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
171	static SV *rv_diehook;	184	static SV *rv_diehook;
172	static SV *rv_warnhook;	185	static SV *rv_warnhook;
173	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
174		187
175	/* async_pool helper stuff */	188	/* async_pool helper stuff */
176	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
177	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV *sv_async_pool_idle; /* description string */
178	static AV *av_async_pool;	192	static AV *av_async_pool; /* idle pool */
		193	static SV *sv_Coro; /* class string */
		194	static CV *cv_pool_handler;
		195	static CV *cv_coro_state_new;
179		196
180	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
181	static SV *sv_activity;	198	static SV *sv_activity;
182		199
183	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
212	int valgrind_id;	229	int valgrind_id;
213	#endif	230	#endif
214	unsigned char flags;	231	unsigned char flags;
215	} coro_cctx;	232	} coro_cctx;
216		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
217	enum {	238	enum {
218	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
219	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
220	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
221	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
226	{	247	{
227	SV *defsv;	248	SV *defsv;
228	AV *defav;	249	AV *defav;
229	SV *errsv;	250	SV *errsv;
230	SV *irsgv;	251	SV *irsgv;
		252	HV *hinthv;
231	#define VAR(name,type) type name;	253	#define VAR(name,type) type name;
232	# include "state.h"	254	# include "state.h"
233	#undef VAR	255	#undef VAR
234	} perl_slots;	256	} perl_slots;
235		257
…		…
243	/* state data */	265	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	266	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	267	AV *mainstack;
246	perl_slots *slot; /* basically the saved sp */	268	perl_slots *slot; /* basically the saved sp */
247		269
		270	CV *startcv; /* the CV to execute */
248	AV *args; /* data associated with this coroutine (initial args) */	271	AV *args; /* data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	272	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	273	int flags; /* CF_ flags */
251	HV *hv; /* the perl hash associated with this coro, if any */	274	HV *hv; /* the perl hash associated with this coro, if any */
252	void (*on_destroy)(pTHX_ struct coro *coro);	275	void (*on_destroy)(pTHX_ struct coro *coro);
253		276
254	/* statistics */	277	/* statistics */
255	int usecount; /* number of transfers to this coro */	278	int usecount; /* number of transfers to this coro */
256		279
257	/* coro process data */	280	/* coro process data */
258	int prio;	281	int prio;
259	SV *throw; /* exception to be thrown */	282	SV *except; /* exception to be thrown */
		283	SV *rouse_cb;
260		284
261	/* async_pool */	285	/* async_pool */
262	SV *saved_deffh;	286	SV *saved_deffh;
		287	SV *invoke_cb;
		288	AV *invoke_av;
263		289
264	/* linked list */	290	/* linked list */
265	struct coro *next, *prev;	291	struct coro *next, *prev;
266	};	292	};
267		293
…		…
270		296
271	/* the following variables are effectively part of the perl context */	297	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	298	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	299	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	300	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		301
277	/** Coro ********************************************************************/	302	/** Coro ********************************************************************/
278		303
279	#define PRIO_MAX 3	304	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	305	#define PRIO_HIGH 1
…		…
285		310
286	/* for Coro.pm */	311	/* for Coro.pm */
287	static SV *coro_current;	312	static SV *coro_current;
288	static SV *coro_readyhook;	313	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		315	static CV *cv_coro_run, *cv_coro_terminate;
290	static struct coro *coro_first;	316	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	317	#define coro_nready coroapi.nready
292		318
293	/** lowlevel stuff **********************************************************/	319	/** lowlevel stuff **********************************************************/
294		320
…		…
320	get_hv (name, create);	346	get_hv (name, create);
321	#endif	347	#endif
322	return get_hv (name, create);	348	return get_hv (name, create);
323	}	349	}
324		350
		351	/* may croak */
		352	INLINE CV *
		353	coro_sv_2cv (pTHX_ SV *sv)
		354	{
		355	HV *st;
		356	GV *gvp;
		357	return sv_2cv (sv, &st, &gvp, 0);
		358	}
		359
325	static AV *	360	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	361	coro_derive_padlist (pTHX_ CV *cv)
327	{	362	{
328	AV *padlist = CvPADLIST (cv);	363	AV *padlist = CvPADLIST (cv);
329	AV *newpadlist, *newpad;	364	AV *newpadlist, *newpad;
330		365
331	newpadlist = newAV ();	366	newpadlist = newAV ();
…		…
446	else	481	else
447	{	482	{
448	#if CORO_PREFER_PERL_FUNCTIONS	483	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	484	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	485	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	486	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	487	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	488	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	489	SvREFCNT_dec (cp);
455	#else	490	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	491	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457	#endif	492	#endif
458	}	493	}
459	}	494	}
460		495
461	static void	496	static void
…		…
483	perl_slots *slot = c->slot;	518	perl_slots *slot = c->slot;
484	c->slot = 0;	519	c->slot = 0;
485		520
486	PL_mainstack = c->mainstack;	521	PL_mainstack = c->mainstack;
487		522
488	GvSV (PL_defgv) = slot->defsv;	523	GvSV (PL_defgv) = slot->defsv;
489	GvAV (PL_defgv) = slot->defav;	524	GvAV (PL_defgv) = slot->defav;
490	GvSV (PL_errgv) = slot->errsv;	525	GvSV (PL_errgv) = slot->errsv;
491	GvSV (irsgv) = slot->irsgv;	526	GvSV (irsgv) = slot->irsgv;
		527	GvHV (PL_hintgv) = slot->hinthv;
492		528
493	#define VAR(name,type) PL_ ## name = slot->name;	529	#define VAR(name,type) PL_ ## name = slot->name;
494	# include "state.h"	530	# include "state.h"
495	#undef VAR	531	#undef VAR
496		532
…		…
509		545
510	PUTBACK;	546	PUTBACK;
511	}	547	}
512		548
513	slf_frame = c->slf_frame;	549	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	550	CORO_THROW = c->except;
515	}	551	}
516		552
517	static void	553	static void
518	save_perl (pTHX_ Coro__State c)	554	save_perl (pTHX_ Coro__State c)
519	{	555	{
520	c->throw = coro_throw;	556	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	557	c->slf_frame = slf_frame;
522		558
523	{	559	{
524	dSP;	560	dSP;
525	I32 cxix = cxstack_ix;	561	I32 cxix = cxstack_ix;
…		…
582	c->mainstack = PL_mainstack;	618	c->mainstack = PL_mainstack;
583		619
584	{	620	{
585	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	621	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
586		622
587	slot->defav = GvAV (PL_defgv);	623	slot->defav = GvAV (PL_defgv);
588	slot->defsv = DEFSV;	624	slot->defsv = DEFSV;
589	slot->errsv = ERRSV;	625	slot->errsv = ERRSV;
590	slot->irsgv = GvSV (irsgv);	626	slot->irsgv = GvSV (irsgv);
		627	slot->hinthv = GvHV (PL_hintgv);
591		628
592	#define VAR(name,type) slot->name = PL_ ## name;	629	#define VAR(name,type) slot->name = PL_ ## name;
593	# include "state.h"	630	# include "state.h"
594	#undef VAR	631	#undef VAR
595	}	632	}
…		…
600	* of perl.c:init_stacks, except that it uses less memory	637	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	638	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	639	* not usually need a lot of stackspace.
603	*/	640	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	641	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	642	# define coro_init_stacks(thx) init_stacks ()
606	#else	643	#else
607	static void	644	static void
608	coro_init_stacks (pTHX)	645	coro_init_stacks (pTHX)
609	{	646	{
610	PL_curstackinfo = new_stackinfo(32, 8);	647	PL_curstackinfo = new_stackinfo(32, 8);
…		…
673	#if !PERL_VERSION_ATLEAST (5,10,0)	710	#if !PERL_VERSION_ATLEAST (5,10,0)
674	Safefree (PL_retstack);	711	Safefree (PL_retstack);
675	#endif	712	#endif
676	}	713	}
677		714
		715	#define CORO_RSS \
		716	rss += sizeof (SYM (curstackinfo)); \
		717	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		718	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		719	rss += SYM (tmps_max) * sizeof (SV *); \
		720	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		721	rss += SYM (scopestack_max) * sizeof (I32); \
		722	rss += SYM (savestack_max) * sizeof (ANY);
		723
678	static size_t	724	static size_t
679	coro_rss (pTHX_ struct coro *coro)	725	coro_rss (pTHX_ struct coro *coro)
680	{	726	{
681	size_t rss = sizeof (*coro);	727	size_t rss = sizeof (*coro);
682		728
683	if (coro->mainstack)	729	if (coro->mainstack)
684	{	730	{
685	perl_slots tmp_slot;
686	perl_slots *slot;
687
688	if (coro->flags & CF_RUNNING)	731	if (coro->flags & CF_RUNNING)
689	{	732	{
690	slot = &tmp_slot;	733	#define SYM(sym) PL_ ## sym
691		734	CORO_RSS;
692	#define VAR(name,type) slot->name = PL_ ## name;
693	# include "state.h"
694	#undef VAR	735	#undef SYM
695	}	736	}
696	else	737	else
697	slot = coro->slot;
698
699	if (slot)
700	{	738	{
701	rss += sizeof (slot->curstackinfo);	739	#define SYM(sym) coro->slot->sym
702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	740	CORO_RSS;
703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	741	#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	}	742	}
713	}	743	}
714		744
715	return rss;	745	return rss;
716	}	746	}
…		…
818	slf_check_nop (pTHX_ struct CoroSLF *frame)	848	slf_check_nop (pTHX_ struct CoroSLF *frame)
819	{	849	{
820	return 0;	850	return 0;
821	}	851	}
822		852
		853	static int
		854	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		855	{
		856	return 1;
		857	}
		858
823	static UNOP coro_setup_op;	859	static UNOP coro_setup_op;
824		860
825	static void NOINLINE /* noinline to keep it out of the transfer fast path */	861	static void NOINLINE /* noinline to keep it out of the transfer fast path */
826	coro_setup (pTHX_ struct coro *coro)	862	coro_setup (pTHX_ struct coro *coro)
827	{	863	{
…		…
832		868
833	PL_runops = RUNOPS_DEFAULT;	869	PL_runops = RUNOPS_DEFAULT;
834	PL_curcop = &PL_compiling;	870	PL_curcop = &PL_compiling;
835	PL_in_eval = EVAL_NULL;	871	PL_in_eval = EVAL_NULL;
836	PL_comppad = 0;	872	PL_comppad = 0;
		873	PL_comppad_name = 0;
		874	PL_comppad_name_fill = 0;
		875	PL_comppad_name_floor = 0;
837	PL_curpm = 0;	876	PL_curpm = 0;
838	PL_curpad = 0;	877	PL_curpad = 0;
839	PL_localizing = 0;	878	PL_localizing = 0;
840	PL_dirty = 0;	879	PL_dirty = 0;
841	PL_restartop = 0;	880	PL_restartop = 0;
842	#if PERL_VERSION_ATLEAST (5,10,0)	881	#if PERL_VERSION_ATLEAST (5,10,0)
843	PL_parser = 0;	882	PL_parser = 0;
844	#endif	883	#endif
		884	PL_hints = 0;
845		885
846	/* recreate the die/warn hooks */	886	/* recreate the die/warn hooks */
847	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	887	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
848	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	888	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
849		889
850	GvSV (PL_defgv) = newSV (0);	890	GvSV (PL_defgv) = newSV (0);
851	GvAV (PL_defgv) = coro->args; coro->args = 0;	891	GvAV (PL_defgv) = coro->args; coro->args = 0;
852	GvSV (PL_errgv) = newSV (0);	892	GvSV (PL_errgv) = newSV (0);
853	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	893	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		894	GvHV (PL_hintgv) = 0;
854	PL_rs = newSVsv (GvSV (irsgv));	895	PL_rs = newSVsv (GvSV (irsgv));
855	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	896	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
856		897
857	{	898	{
858	dSP;	899	dSP;
859	UNOP myop;	900	UNOP myop;
860		901
861	Zero (&myop, 1, UNOP);	902	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	903	myop.op_next = Nullop;
		904	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	905	myop.op_flags = OPf_WANT_VOID;
864		906
865	PUSHMARK (SP);	907	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	908	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	909	PUTBACK;
868	PL_op = (OP *)&myop;	910	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	911	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	912	}
872		913
873	/* this newly created coroutine might be run on an existing cctx which most	914	/* 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.	915	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	916	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	917	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 */	918	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		919
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	920	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		921	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	922	coro_setup_op.op_type = OP_ENTERSUB;
881	coro_setup_op.op_ppaddr = pp_slf;	923	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	924	/* no flags etc. required, as an init function won't be called */
883		925
884	PL_op = (OP *)&coro_setup_op;	926	PL_op = (OP *)&coro_setup_op;
885		927
886	/* copy throw, in case it was set before coro_setup */	928	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	929	CORO_THROW = coro->except;
888	}	930	}
889		931
890	static void	932	static void
891	coro_destruct (pTHX_ struct coro *coro)	933	coro_destruct (pTHX_ struct coro *coro)
892	{	934	{
…		…
911	SvREFCNT_dec (GvAV (PL_defgv));	953	SvREFCNT_dec (GvAV (PL_defgv));
912	SvREFCNT_dec (GvSV (PL_errgv));	954	SvREFCNT_dec (GvSV (PL_errgv));
913	SvREFCNT_dec (PL_defoutgv);	955	SvREFCNT_dec (PL_defoutgv);
914	SvREFCNT_dec (PL_rs);	956	SvREFCNT_dec (PL_rs);
915	SvREFCNT_dec (GvSV (irsgv));	957	SvREFCNT_dec (GvSV (irsgv));
		958	SvREFCNT_dec (GvHV (PL_hintgv));
916		959
917	SvREFCNT_dec (PL_diehook);	960	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	961	SvREFCNT_dec (PL_warnhook);
919		962
920	SvREFCNT_dec (coro->saved_deffh);	963	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	964	SvREFCNT_dec (coro->rouse_cb);
		965	SvREFCNT_dec (coro->invoke_cb);
		966	SvREFCNT_dec (coro->invoke_av);
922		967
923	coro_destruct_stacks (aTHX);	968	coro_destruct_stacks (aTHX);
924	}	969	}
925		970
926	INLINE void	971	INLINE void
…		…
936	static int	981	static int
937	runops_trace (pTHX)	982	runops_trace (pTHX)
938	{	983	{
939	COP *oldcop = 0;	984	COP *oldcop = 0;
940	int oldcxix = -2;	985	int oldcxix = -2;
941	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
942	coro_cctx *cctx = coro->cctx;
943		986
944	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	987	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
945	{	988	{
946	PERL_ASYNC_CHECK ();	989	PERL_ASYNC_CHECK ();
947		990
948	if (cctx->flags & CC_TRACE_ALL)	991	if (cctx_current->flags & CC_TRACE_ALL)
949	{	992	{
950	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	993	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
951	{	994	{
952	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	995	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
953	SV **bot, **top;	996	SV **bot, **top;
954	AV *av = newAV (); /* return values */	997	AV *av = newAV (); /* return values */
955	SV **cb;	998	SV **cb;
…		…
992		1035
993	if (PL_curcop != &PL_compiling)	1036	if (PL_curcop != &PL_compiling)
994	{	1037	{
995	SV **cb;	1038	SV **cb;
996		1039
997	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1040	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
998	{	1041	{
999	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1042	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000		1043
1001	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1044	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002	{	1045	{
1003	runops_proc_t old_runops = PL_runops;
1004	dSP;	1046	dSP;
1005	GV *gv = CvGV (cx->blk_sub.cv);	1047	GV *gv = CvGV (cx->blk_sub.cv);
1006	SV *fullname = sv_2mortal (newSV (0));	1048	SV *fullname = sv_2mortal (newSV (0));
1007		1049
1008	if (isGV (gv))	1050	if (isGV (gv))
…		…
1013	SAVETMPS;	1055	SAVETMPS;
1014	EXTEND (SP, 3);	1056	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1057	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1058	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1059	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1060	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1061	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1062	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);	1063	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022	SPAGAIN;	1064	SPAGAIN;
1023	FREETMPS;	1065	FREETMPS;
…		…
1026	}	1068	}
1027		1069
1028	oldcxix = cxstack_ix;	1070	oldcxix = cxstack_ix;
1029	}	1071	}
1030		1072
1031	if (cctx->flags & CC_TRACE_LINE)	1073	if (cctx_current->flags & CC_TRACE_LINE)
1032	{	1074	{
1033	dSP;	1075	dSP;
1034		1076
1035	PL_runops = RUNOPS_DEFAULT;	1077	PL_runops = RUNOPS_DEFAULT;
1036	ENTER;	1078	ENTER;
…		…
1055		1097
1056	TAINT_NOT;	1098	TAINT_NOT;
1057	return 0;	1099	return 0;
1058	}	1100	}
1059		1101
1060	static struct coro_cctx *cctx_ssl_cctx;
1061	static struct CoroSLF cctx_ssl_frame;	1102	static struct CoroSLF cctx_ssl_frame;
1062		1103
1063	static void	1104	static void
1064	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1105	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1065	{	1106	{
1066	ta->prev = (struct coro *)cctx_ssl_cctx;
1067	ta->next = 0;	1107	ta->prev = 0;
1068	}	1108	}
1069		1109
1070	static int	1110	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1111	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1112	{
1073	*frame = cctx_ssl_frame;	1113	*frame = cctx_ssl_frame;
1074		1114
1075	return 0;	1115	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1116	}
1077		1117
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1118	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1119	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1120	cctx_prepare (pTHX)
1081	{	1121	{
1082	PL_top_env = &PL_start_env;	1122	PL_top_env = &PL_start_env;
1083		1123
1084	if (cctx->flags & CC_TRACE)	1124	if (cctx_current->flags & CC_TRACE)
1085	PL_runops = runops_trace;	1125	PL_runops = runops_trace;
1086		1126
1087	/* we already must be in an SLF call, there is no other valid way	1127	/* we already must be executing an SLF op, there is no other valid way
1088	* that can lead to creation of a new cctx */	1128	* that can lead to creation of a new cctx */
1089	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1129	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1130	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1131
1092	cctx_ssl_cctx = cctx;	1132	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1093	cctx_ssl_frame = slf_frame;	1133	cctx_ssl_frame = slf_frame;
1094		1134
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1135	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1136	slf_frame.check = slf_check_set_stacklevel;
1097	}	1137	}
…		…
1120	/* normally we would need to skip the entersub here */	1160	/* normally we would need to skip the entersub here */
1121	/* not doing so will re-execute it, which is exactly what we want */	1161	/* not doing so will re-execute it, which is exactly what we want */
1122	/* PL_nop = PL_nop->op_next */	1162	/* PL_nop = PL_nop->op_next */
1123		1163
1124	/* inject a fake subroutine call to cctx_init */	1164	/* inject a fake subroutine call to cctx_init */
1125	cctx_prepare (aTHX_ (coro_cctx *)arg);	1165	cctx_prepare (aTHX);
1126		1166
1127	/* cctx_run is the alternative tail of transfer() */	1167	/* cctx_run is the alternative tail of transfer() */
1128	transfer_tail (aTHX);	1168	transfer_tail (aTHX);
1129		1169
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1170	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1171	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1172	perl_run (PL_curinterp);
		1173	/*
		1174	* Unfortunately, there is no way to get at the return values of the
		1175	* coro body here, as perl_run destroys these
		1176	*/
1133		1177
1134	/*	1178	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1179	* 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)	1180	* 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	1181	* reason for perl_run to return. We try to exit by jumping to the
…		…
1221	cctx_destroy (coro_cctx *cctx)	1265	cctx_destroy (coro_cctx *cctx)
1222	{	1266	{
1223	if (!cctx)	1267	if (!cctx)
1224	return;	1268	return;
1225		1269
		1270	assert (cctx != cctx_current);//D temporary
		1271
1226	--cctx_count;	1272	--cctx_count;
1227	coro_destroy (&cctx->cctx);	1273	coro_destroy (&cctx->cctx);
1228		1274
1229	/* coro_transfer creates new, empty cctx's */	1275	/* coro_transfer creates new, empty cctx's */
1230	if (cctx->sptr)	1276	if (cctx->sptr)
…		…
1293	/* TODO: throwing up here is considered harmful */	1339	/* TODO: throwing up here is considered harmful */
1294		1340
1295	if (expect_true (prev != next))	1341	if (expect_true (prev != next))
1296	{	1342	{
1297	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1343	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1298	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1344	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1299		1345
1300	if (expect_false (next->flags & CF_RUNNING))	1346	if (expect_false (next->flags & CF_RUNNING))
1301	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");	1347	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1302		1348
1303	if (expect_false (next->flags & CF_DESTROYED))	1349	if (expect_false (next->flags & CF_DESTROYED))
…		…
1315	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1361	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1316	{	1362	{
1317	dSTACKLEVEL;	1363	dSTACKLEVEL;
1318		1364
1319	/* sometimes transfer is only called to set idle_sp */	1365	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1366	if (expect_false (!prev))
1321	{	1367	{
1322	((coro_cctx *)prev)->idle_sp = (void *)stacklevel;	1368	cctx_current->idle_sp = STACKLEVEL;
1323	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1369	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324	}	1370	}
1325	else if (expect_true (prev != next))	1371	else if (expect_true (prev != next))
1326	{	1372	{
1327	coro_cctx *prev__cctx;	1373	coro_cctx *cctx_prev;
1328		1374
1329	if (expect_false (prev->flags & CF_NEW))	1375	if (expect_false (prev->flags & CF_NEW))
1330	{	1376	{
1331	/* create a new empty/source context */	1377	/* create a new empty/source context */
1332	prev->cctx = cctx_new_empty ();
1333	prev->flags &= ~CF_NEW;	1378	prev->flags &= ~CF_NEW;
1334	prev->flags |= CF_RUNNING;	1379	prev->flags |= CF_RUNNING;
1335	}	1380	}
1336		1381
1337	prev->flags &= ~CF_RUNNING;	1382	prev->flags &= ~CF_RUNNING;
…		…
1348	coro_setup (aTHX_ next);	1393	coro_setup (aTHX_ next);
1349	}	1394	}
1350	else	1395	else
1351	load_perl (aTHX_ next);	1396	load_perl (aTHX_ next);
1352		1397
1353	prev__cctx = prev->cctx;	1398	assert (!prev->cctx);//D temporary
1354		1399
1355	/* possibly untie and reuse the cctx */	1400	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1401	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1402	cctx_current->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1403	&& !(cctx_current->flags & CC_TRACE)
1359	&& !force_cctx	1404	&& !force_cctx
1360	))	1405	))
1361	{	1406	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1407	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1363	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1408	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1364		1409
1365	prev->cctx = 0;
1366
1367	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1410	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1368	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1411	/* without this the next cctx_get might destroy the running cctx while still in use */
1369	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1412	if (expect_false (CCTX_EXPIRED (cctx_current)))
1370	if (!next->cctx)	1413	if (expect_true (!next->cctx))
1371	next->cctx = cctx_get (aTHX);	1414	next->cctx = cctx_get (aTHX);
1372		1415
1373	cctx_put (prev__cctx);	1416	cctx_put (cctx_current);
1374	}	1417	}
		1418	else
		1419	prev->cctx = cctx_current;
1375		1420
1376	++next->usecount;	1421	++next->usecount;
1377		1422
1378	if (expect_true (!next->cctx))	1423	cctx_prev = cctx_current;
1379	next->cctx = cctx_get (aTHX);	1424	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1380		1425
1381	if (expect_false (prev__cctx != next->cctx))	1426	next->cctx = 0;
		1427
		1428	if (expect_false (cctx_prev != cctx_current))
1382	{	1429	{
1383	prev__cctx->top_env = PL_top_env;	1430	cctx_prev->top_env = PL_top_env;
1384	PL_top_env = next->cctx->top_env;	1431	PL_top_env = cctx_current->top_env;
1385	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1432	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1386	}	1433	}
1387		1434
1388	transfer_tail (aTHX);	1435	transfer_tail (aTHX);
1389	}	1436	}
1390	}	1437	}
…		…
1429		1476
1430	coro->slot = 0;	1477	coro->slot = 0;
1431	}	1478	}
1432		1479
1433	cctx_destroy (coro->cctx);	1480	cctx_destroy (coro->cctx);
		1481	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1482	SvREFCNT_dec (coro->args);
		1483	SvREFCNT_dec (CORO_THROW);
1435		1484
1436	if (coro->next) coro->next->prev = coro->prev;	1485	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1486	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1487	if (coro == coro_first) coro_first = coro->next;
1439		1488
…		…
1493		1542
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1543	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1544	TRANSFER (ta, 1);
1496	}	1545	}
1497		1546
		1547	/*****************************************************************************/
		1548	/* gensub: simple closure generation utility */
		1549
		1550	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1551
		1552	/* create a closure from XS, returns a code reference */
		1553	/* the arg can be accessed via GENSUB_ARG from the callback */
		1554	/* the callback must use dXSARGS/XSRETURN */
		1555	static SV *
		1556	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
		1557	{
		1558	CV *cv = (CV *)newSV (0);
		1559
		1560	sv_upgrade ((SV *)cv, SVt_PVCV);
		1561
		1562	CvANON_on (cv);
		1563	CvISXSUB_on (cv);
		1564	CvXSUB (cv) = xsub;
		1565	GENSUB_ARG = arg;
		1566
		1567	return newRV_noinc ((SV *)cv);
		1568	}
		1569
1498	/** Coro ********************************************************************/	1570	/** Coro ********************************************************************/
1499		1571
1500	INLINE void	1572	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1573	coro_enq (pTHX_ struct coro *coro)
1502	{	1574	{
…		…
1520	{	1592	{
1521	struct coro *coro;	1593	struct coro *coro;
1522	SV *sv_hook;	1594	SV *sv_hook;
1523	void (*xs_hook)(void);	1595	void (*xs_hook)(void);
1524		1596
1525	if (SvROK (coro_sv))
1526	coro_sv = SvRV (coro_sv);
1527
1528	coro = SvSTATE (coro_sv);	1597	coro = SvSTATE (coro_sv);
1529		1598
1530	if (coro->flags & CF_READY)	1599	if (coro->flags & CF_READY)
1531	return 0;	1600	return 0;
1532		1601
…		…
1563	api_is_ready (pTHX_ SV *coro_sv)	1632	api_is_ready (pTHX_ SV *coro_sv)
1564	{	1633	{
1565	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1634	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566	}	1635	}
1567		1636
		1637	/* expects to own a reference to next->hv */
1568	INLINE void	1638	INLINE void
1569	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1639	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1570	{	1640	{
1571	SV *prev_sv, *next_sv;
1572
1573	for (;;)
1574	{
1575	next_sv = coro_deq (aTHX);
1576
1577	/* nothing to schedule: call the idle handler */
1578	if (expect_false (!next_sv))
1579	{
1580	dSP;
1581
1582	ENTER;
1583	SAVETMPS;
1584
1585	PUSHMARK (SP);
1586	PUTBACK;
1587	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1588
1589	FREETMPS;
1590	LEAVE;
1591	continue;
1592	}
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	}
1607
1608	/* free this only after the transfer */
1609	prev_sv = SvRV (coro_current);	1641	SV *prev_sv = SvRV (coro_current);
		1642
1610	ta->prev = SvSTATE_hv (prev_sv);	1643	ta->prev = SvSTATE_hv (prev_sv);
		1644	ta->next = next;
		1645
1611	TRANSFER_CHECK (*ta);	1646	TRANSFER_CHECK (*ta);
1612	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1647
1613	ta->next->flags &= ~CF_READY;
1614	SvRV_set (coro_current, next_sv);	1648	SvRV_set (coro_current, (SV *)next->hv);
1615		1649
1616	free_coro_mortal (aTHX);	1650	free_coro_mortal (aTHX);
1617	coro_mortal = prev_sv;	1651	coro_mortal = prev_sv;
1618	}	1652	}
1619		1653
		1654	static void
		1655	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1656	{
		1657	for (;;)
		1658	{
		1659	SV *next_sv = coro_deq (aTHX);
		1660
		1661	if (expect_true (next_sv))
		1662	{
		1663	struct coro *next = SvSTATE_hv (next_sv);
		1664
		1665	/* cannot transfer to destroyed coros, skip and look for next */
		1666	if (expect_false (next->flags & CF_DESTROYED))
		1667	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1668	else
		1669	{
		1670	next->flags &= ~CF_READY;
		1671	--coro_nready;
		1672
		1673	prepare_schedule_to (aTHX_ ta, next);
		1674	break;
		1675	}
		1676	}
		1677	else
		1678	{
		1679	/* nothing to schedule: call the idle handler */
		1680	if (SvROK (sv_idle)
		1681	&& SvOBJECT (SvRV (sv_idle)))
		1682	{
		1683	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1684	api_ready (aTHX_ SvRV (sv_idle));
		1685	--coro_nready;
		1686	}
		1687	else
		1688	{
		1689	dSP;
		1690
		1691	ENTER;
		1692	SAVETMPS;
		1693
		1694	PUSHMARK (SP);
		1695	PUTBACK;
		1696	call_sv (sv_idle, G_VOID | G_DISCARD);
		1697
		1698	FREETMPS;
		1699	LEAVE;
		1700	}
		1701	}
		1702	}
		1703	}
		1704
1620	INLINE void	1705	INLINE void
1621	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1706	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622	{	1707	{
1623	api_ready (aTHX_ coro_current);	1708	api_ready (aTHX_ coro_current);
1624	prepare_schedule (aTHX_ ta);	1709	prepare_schedule (aTHX_ ta);
…		…
1643	{	1728	{
1644	struct coro_transfer_args ta;	1729	struct coro_transfer_args ta;
1645		1730
1646	prepare_schedule (aTHX_ &ta);	1731	prepare_schedule (aTHX_ &ta);
1647	TRANSFER (ta, 1);	1732	TRANSFER (ta, 1);
		1733	}
		1734
		1735	static void
		1736	api_schedule_to (pTHX_ SV *coro_sv)
		1737	{
		1738	struct coro_transfer_args ta;
		1739	struct coro *next = SvSTATE (coro_sv);
		1740
		1741	SvREFCNT_inc_NN (coro_sv);
		1742	prepare_schedule_to (aTHX_ &ta, next);
1648	}	1743	}
1649		1744
1650	static int	1745	static int
1651	api_cede (pTHX)	1746	api_cede (pTHX)
1652	{	1747	{
…		…
1681	static void	1776	static void
1682	api_trace (pTHX_ SV *coro_sv, int flags)	1777	api_trace (pTHX_ SV *coro_sv, int flags)
1683	{	1778	{
1684	struct coro *coro = SvSTATE (coro_sv);	1779	struct coro *coro = SvSTATE (coro_sv);
1685		1780
		1781	if (coro->flags & CF_RUNNING)
		1782	croak ("cannot enable tracing on a running coroutine, caught");
		1783
1686	if (flags & CC_TRACE)	1784	if (flags & CC_TRACE)
1687	{	1785	{
1688	if (!coro->cctx)	1786	if (!coro->cctx)
1689	coro->cctx = cctx_new_run ();	1787	coro->cctx = cctx_new_run ();
1690	else if (!(coro->cctx->flags & CC_TRACE))	1788	else if (!(coro->cctx->flags & CC_TRACE))
1691	croak ("cannot enable tracing on coroutine with custom stack,");	1789	croak ("cannot enable tracing on coroutine with custom stack, caught");
1692		1790
1693	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1791	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1694	}	1792	}
1695	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1793	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1696	{	1794	{
…		…
1699	if (coro->flags & CF_RUNNING)	1797	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1798	PL_runops = RUNOPS_DEFAULT;
1701	else	1799	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1800	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1801	}
		1802	}
		1803
		1804	static void
		1805	coro_call_on_destroy (pTHX_ struct coro *coro)
		1806	{
		1807	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1808	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1809
		1810	if (on_destroyp)
		1811	{
		1812	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1813
		1814	while (AvFILLp (on_destroy) >= 0)
		1815	{
		1816	dSP; /* don't disturb outer sp */
		1817	SV *cb = av_pop (on_destroy);
		1818
		1819	PUSHMARK (SP);
		1820
		1821	if (statusp)
		1822	{
		1823	int i;
		1824	AV *status = (AV *)SvRV (*statusp);
		1825	EXTEND (SP, AvFILLp (status) + 1);
		1826
		1827	for (i = 0; i <= AvFILLp (status); ++i)
		1828	PUSHs (AvARRAY (status)[i]);
		1829	}
		1830
		1831	PUTBACK;
		1832	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1833	}
		1834	}
		1835	}
		1836
		1837	static void
		1838	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1839	{
		1840	int i;
		1841	HV *hv = (HV *)SvRV (coro_current);
		1842	AV *av = newAV ();
		1843
		1844	av_extend (av, items - 1);
		1845	for (i = 0; i < items; ++i)
		1846	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1847
		1848	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1849
		1850	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1851	api_ready (aTHX_ sv_manager);
		1852
		1853	frame->prepare = prepare_schedule;
		1854	frame->check = slf_check_repeat;
		1855	}
		1856
		1857	/*****************************************************************************/
		1858	/* async pool handler */
		1859
		1860	static int
		1861	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1862	{
		1863	HV *hv = (HV *)SvRV (coro_current);
		1864	struct coro *coro = (struct coro *)frame->data;
		1865
		1866	if (!coro->invoke_cb)
		1867	return 1; /* loop till we have invoke */
		1868	else
		1869	{
		1870	hv_store (hv, "desc", sizeof ("desc") - 1,
		1871	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1872
		1873	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1874
		1875	{
		1876	dSP;
		1877	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1878	PUTBACK;
		1879	}
		1880
		1881	SvREFCNT_dec (GvAV (PL_defgv));
		1882	GvAV (PL_defgv) = coro->invoke_av;
		1883	coro->invoke_av = 0;
		1884
		1885	return 0;
		1886	}
		1887	}
		1888
		1889	static void
		1890	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1891	{
		1892	HV *hv = (HV *)SvRV (coro_current);
		1893	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1894
		1895	if (expect_true (coro->saved_deffh))
		1896	{
		1897	/* subsequent iteration */
		1898	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1899	coro->saved_deffh = 0;
		1900
		1901	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1902	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1903	{
		1904	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1905	coro->invoke_av = newAV ();
		1906
		1907	frame->prepare = prepare_nop;
		1908	}
		1909	else
		1910	{
		1911	av_clear (GvAV (PL_defgv));
		1912	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1913
		1914	coro->prio = 0;
		1915
		1916	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1917	api_trace (aTHX_ coro_current, 0);
		1918
		1919	frame->prepare = prepare_schedule;
		1920	av_push (av_async_pool, SvREFCNT_inc (hv));
		1921	}
		1922	}
		1923	else
		1924	{
		1925	/* first iteration, simply fall through */
		1926	frame->prepare = prepare_nop;
		1927	}
		1928
		1929	frame->check = slf_check_pool_handler;
		1930	frame->data = (void *)coro;
		1931	}
		1932
		1933	/*****************************************************************************/
		1934	/* rouse callback */
		1935
		1936	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1937
		1938	static void
		1939	coro_rouse_callback (pTHX_ CV *cv)
		1940	{
		1941	dXSARGS;
		1942	SV *data = (SV *)GENSUB_ARG;
		1943
		1944	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1945	{
		1946	/* first call, set args */
		1947	AV *av = newAV ();
		1948	SV *coro = SvRV (data);
		1949
		1950	SvRV_set (data, (SV *)av);
		1951	api_ready (aTHX_ coro);
		1952	SvREFCNT_dec (coro);
		1953
		1954	/* better take a full copy of the arguments */
		1955	while (items--)
		1956	av_store (av, items, newSVsv (ST (items)));
		1957	}
		1958
		1959	XSRETURN_EMPTY;
		1960	}
		1961
		1962	static int
		1963	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1964	{
		1965	SV *data = (SV *)frame->data;
		1966
		1967	if (CORO_THROW)
		1968	return 0;
		1969
		1970	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1971	return 1;
		1972
		1973	/* now push all results on the stack */
		1974	{
		1975	dSP;
		1976	AV *av = (AV *)SvRV (data);
		1977	int i;
		1978
		1979	EXTEND (SP, AvFILLp (av) + 1);
		1980	for (i = 0; i <= AvFILLp (av); ++i)
		1981	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1982
		1983	/* we have stolen the elements, so ste length to zero and free */
		1984	AvFILLp (av) = -1;
		1985	av_undef (av);
		1986
		1987	PUTBACK;
		1988	}
		1989
		1990	return 0;
		1991	}
		1992
		1993	static void
		1994	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1995	{
		1996	SV *cb;
		1997
		1998	if (items)
		1999	cb = arg [0];
		2000	else
		2001	{
		2002	struct coro *coro = SvSTATE_current;
		2003
		2004	if (!coro->rouse_cb)
		2005	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		2006
		2007	cb = sv_2mortal (coro->rouse_cb);
		2008	coro->rouse_cb = 0;
		2009	}
		2010
		2011	if (!SvROK (cb)
		2012	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		2013	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		2014	croak ("Coro::rouse_wait called with illegal callback argument,");
		2015
		2016	{
		2017	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		2018	SV *data = (SV *)GENSUB_ARG;
		2019
		2020	frame->data = (void *)data;
		2021	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2022	frame->check = slf_check_rouse_wait;
		2023	}
		2024	}
		2025
		2026	static SV *
		2027	coro_new_rouse_cb (pTHX)
		2028	{
		2029	HV *hv = (HV *)SvRV (coro_current);
		2030	struct coro *coro = SvSTATE_hv (hv);
		2031	SV *data = newRV_inc ((SV *)hv);
		2032	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		2033
		2034	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2035	SvREFCNT_dec (data); /* magicext increases the refcount */
		2036
		2037	SvREFCNT_dec (coro->rouse_cb);
		2038	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2039
		2040	return cb;
1704	}	2041	}
1705		2042
1706	/*****************************************************************************/	2043	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	2044	/* schedule-like-function opcode (SLF) */
1708		2045
…		…
1755	static void	2092	static void
1756	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2093	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757	{	2094	{
1758	frame->prepare = prepare_schedule;	2095	frame->prepare = prepare_schedule;
1759	frame->check = slf_check_nop;	2096	frame->check = slf_check_nop;
		2097	}
		2098
		2099	static void
		2100	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2101	{
		2102	struct coro *next = (struct coro *)slf_frame.data;
		2103
		2104	SvREFCNT_inc_NN (next->hv);
		2105	prepare_schedule_to (aTHX_ ta, next);
		2106	}
		2107
		2108	static void
		2109	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2110	{
		2111	if (!items)
		2112	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2113
		2114	frame->data = (void *)SvSTATE (arg [0]);
		2115	frame->prepare = slf_prepare_schedule_to;
		2116	frame->check = slf_check_nop;
		2117	}
		2118
		2119	static void
		2120	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2121	{
		2122	api_ready (aTHX_ SvRV (coro_current));
		2123
		2124	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760	}	2125	}
1761		2126
1762	static void	2127	static void
1763	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2128	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764	{	2129	{
…		…
1835	}	2200	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	2201	while (slf_frame.check (aTHX_ &slf_frame));
1837		2202
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2203	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		2204
		2205	/* exception handling */
		2206	if (expect_false (CORO_THROW))
		2207	{
		2208	SV *exception = sv_2mortal (CORO_THROW);
		2209
		2210	CORO_THROW = 0;
		2211	sv_setsv (ERRSV, exception);
		2212	croak (0);
		2213	}
		2214
1840	/* return value handling - mostly like entersub */	2215	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2216	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2217	if (GIMME_V == G_SCALAR)
1843	{	2218	{
1844	dSP;	2219	dSP;
…		…
1850	bot [1] = *sp;	2225	bot [1] = *sp;
1851		2226
1852	SP = bot + 1;	2227	SP = bot + 1;
1853		2228
1854	PUTBACK;	2229	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	}	2230	}
1866		2231
1867	return NORMAL;	2232	return NORMAL;
1868	}	2233	}
1869		2234
…		…
1910	}	2275	}
1911	else	2276	else
1912	slf_argc = 0;	2277	slf_argc = 0;
1913		2278
1914	PL_op->op_ppaddr = pp_slf;	2279	PL_op->op_ppaddr = pp_slf;
1915	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2280	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916		2281
1917	PL_op = (OP *)&slf_restore;	2282	PL_op = (OP *)&slf_restore;
1918	}	2283	}
1919		2284
1920	/*****************************************************************************/	2285	/*****************************************************************************/
…		…
1991	PerlIOBuf_get_cnt,	2356	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2357	PerlIOBuf_set_ptrcnt,
1993	};	2358	};
1994		2359
1995	/*****************************************************************************/	2360	/*****************************************************************************/
		2361	/* Coro::Semaphore & Coro::Signal */
		2362
		2363	static SV *
		2364	coro_waitarray_new (pTHX_ int count)
		2365	{
		2366	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2367	AV *av = newAV ();
		2368	SV **ary;
		2369
		2370	/* unfortunately, building manually saves memory */
		2371	Newx (ary, 2, SV *);
		2372	AvALLOC (av) = ary;
		2373	/*AvARRAY (av) = ary;*/
		2374	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2375	AvMAX (av) = 1;
		2376	AvFILLp (av) = 0;
		2377	ary [0] = newSViv (count);
		2378
		2379	return newRV_noinc ((SV *)av);
		2380	}
		2381
1996	/* Coro::Semaphore */	2382	/* semaphore */
1997		2383
1998	static void	2384	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2385	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2386	{
2001	SV *count_sv = AvARRAY (av)[0];	2387	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2399	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2400	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2401	cb = av_shift (av);
2016		2402
2017	if (SvOBJECT (cb))	2403	if (SvOBJECT (cb))
		2404	{
2018	api_ready (aTHX_ cb);	2405	api_ready (aTHX_ cb);
2019	else	2406	--count;
2020	croak ("callbacks not yet supported");	2407	}
		2408	else if (SvTYPE (cb) == SVt_PVCV)
		2409	{
		2410	dSP;
		2411	PUSHMARK (SP);
		2412	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2413	PUTBACK;
		2414	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2415	}
2021		2416
2022	SvREFCNT_dec (cb);	2417	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2418	}
2026	}	2419	}
2027		2420
2028	static void	2421	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2422	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2424	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2425	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2426	}
2034		2427
2035	static int	2428	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2429	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2430	{
2038	AV *av = (AV *)frame->data;	2431	AV *av = (AV *)frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2432	SV *count_sv = AvARRAY (av)[0];
2040		2433
		2434	/* if we are about to throw, don't actually acquire the lock, just throw */
		2435	if (CORO_THROW)
		2436	return 0;
2041	if (SvIVX (count_sv) > 0)	2437	else if (SvIVX (count_sv) > 0)
2042	{	2438	{
2043	SvSTATE_current->on_destroy = 0;	2439	SvSTATE_current->on_destroy = 0;
		2440
		2441	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2442	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2443	else
		2444	coro_semaphore_adjust (aTHX_ av, 0);
		2445
2045	return 0;	2446	return 0;
2046	}	2447	}
2047	else	2448	else
2048	{	2449	{
2049	int i;	2450	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2459	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2460	return 1;
2060	}	2461	}
2061	}	2462	}
2062		2463
2063	static void	2464	static int
		2465	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2466	{
		2467	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2468	}
		2469
		2470	static int
		2471	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2472	{
		2473	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2474	}
		2475
		2476	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2477	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065	{	2478	{
2066	AV *av = (AV *)SvRV (arg [0]);	2479	AV *av = (AV *)SvRV (arg [0]);
2067		2480
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2481	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2482	{
2070	frame->data = (void *)av;	2483	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2484	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2485	}
2074	else	2486	else
2075	{	2487	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2488	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2489
2078	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2490	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079	frame->prepare = prepare_schedule;	2491	frame->prepare = prepare_schedule;
2080		2492
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2493	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2494	/* 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;	2495	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2496	}
		2497	}
2086		2498
		2499	static void
		2500	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2501	{
		2502	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2503	frame->check = slf_check_semaphore_down;
2088
2089	}	2504	}
2090		2505
2091	/*****************************************************************************/	2506	static void
2092	/* gensub: simple closure generation utility */	2507	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	{	2508	{
2102	CV *cv = (CV *)newSV (0);	2509	if (items >= 2)
		2510	{
		2511	/* callback form */
		2512	AV *av = (AV *)SvRV (arg [0]);
		2513	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103		2514
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2515	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2516
2106	CvANON_on (cv);	2517	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2518	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2519
2111	return newRV_noinc ((SV *)cv);	2520	frame->prepare = prepare_nop;
		2521	frame->check = slf_check_nop;
		2522	}
		2523	else
		2524	{
		2525	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2526	frame->check = slf_check_semaphore_wait;
		2527	}
		2528	}
		2529
		2530	/* signal */
		2531
		2532	static void
		2533	coro_signal_wake (pTHX_ AV *av, int count)
		2534	{
		2535	SvIVX (AvARRAY (av)[0]) = 0;
		2536
		2537	/* now signal count waiters */
		2538	while (count > 0 && AvFILLp (av) > 0)
		2539	{
		2540	SV *cb;
		2541
		2542	/* swap first two elements so we can shift a waiter */
		2543	cb = AvARRAY (av)[0];
		2544	AvARRAY (av)[0] = AvARRAY (av)[1];
		2545	AvARRAY (av)[1] = cb;
		2546
		2547	cb = av_shift (av);
		2548
		2549	api_ready (aTHX_ cb);
		2550	sv_setiv (cb, 0); /* signal waiter */
		2551	SvREFCNT_dec (cb);
		2552
		2553	--count;
		2554	}
		2555	}
		2556
		2557	static int
		2558	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2559	{
		2560	/* if we are about to throw, also stop waiting */
		2561	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2562	}
		2563
		2564	static void
		2565	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2566	{
		2567	AV *av = (AV *)SvRV (arg [0]);
		2568
		2569	if (SvIVX (AvARRAY (av)[0]))
		2570	{
		2571	SvIVX (AvARRAY (av)[0]) = 0;
		2572	frame->prepare = prepare_nop;
		2573	frame->check = slf_check_nop;
		2574	}
		2575	else
		2576	{
		2577	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2578
		2579	av_push (av, waiter);
		2580
		2581	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2582	frame->prepare = prepare_schedule;
		2583	frame->check = slf_check_signal_wait;
		2584	}
2112	}	2585	}
2113		2586
2114	/*****************************************************************************/	2587	/*****************************************************************************/
2115	/* Coro::AIO */	2588	/* Coro::AIO */
2116		2589
…		…
2131	dXSARGS;	2604	dXSARGS;
2132	AV *state = (AV *)GENSUB_ARG;	2605	AV *state = (AV *)GENSUB_ARG;
2133	SV *coro = av_pop (state);	2606	SV *coro = av_pop (state);
2134	SV *data_sv = newSV (sizeof (struct io_state));	2607	SV *data_sv = newSV (sizeof (struct io_state));
2135		2608
2136	av_extend (state, items);	2609	av_extend (state, items - 1);
2137		2610
2138	sv_upgrade (data_sv, SVt_PV);	2611	sv_upgrade (data_sv, SVt_PV);
2139	SvCUR_set (data_sv, sizeof (struct io_state));	2612	SvCUR_set (data_sv, sizeof (struct io_state));
2140	SvPOK_only (data_sv);	2613	SvPOK_only (data_sv);
2141		2614
…		…
2166	static int	2639	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2640	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2641	{
2169	AV *state = (AV *)frame->data;	2642	AV *state = (AV *)frame->data;
2170		2643
		2644	/* if we are about to throw, return early */
		2645	/* this does not cancel the aio request, but at least */
		2646	/* it quickly returns */
		2647	if (CORO_THROW)
		2648	return 0;
		2649
2171	/* one element that is an RV? repeat! */	2650	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2651	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2652	return 1;
2174		2653
2175	/* restore status */	2654	/* restore status */
…		…
2270	XSRETURN_EMPTY;	2749	XSRETURN_EMPTY;
2271	}	2750	}
2272		2751
2273	/*****************************************************************************/	2752	/*****************************************************************************/
2274		2753
		2754	#if CORO_CLONE
		2755	# include "clone.c"
		2756	#endif
		2757
2275	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2758	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276		2759
2277	PROTOTYPES: DISABLE	2760	PROTOTYPES: DISABLE
2278		2761
2279	BOOT:	2762	BOOT:
…		…
2283	coro_thx = PERL_GET_CONTEXT;	2766	coro_thx = PERL_GET_CONTEXT;
2284	# endif	2767	# endif
2285	#endif	2768	#endif
2286	BOOT_PAGESIZE;	2769	BOOT_PAGESIZE;
2287		2770
		2771	cctx_current = cctx_new_empty ();
		2772
2288	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2773	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2289	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2774	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2290		2775
2291	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2776	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2292	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2777	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2311		2796
2312	{	2797	{
2313	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2798	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314		2799
2315	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2800	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316	hv_store_ent (PL_custom_op_names, slf,	2801	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317	newSVpv ("coro_slf", 0), 0);
2318		2802
2319	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2803	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320	hv_store_ent (PL_custom_op_descs, slf,	2804	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321	newSVpv ("coro schedule like function", 0), 0);
2322	}	2805	}
2323		2806
2324	coroapi.ver = CORO_API_VERSION;	2807	coroapi.ver = CORO_API_VERSION;
2325	coroapi.rev = CORO_API_REVISION;	2808	coroapi.rev = CORO_API_REVISION;
2326		2809
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2828	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2829	}
2347		2830
2348	SV *	2831	SV *
2349	new (char *klass, ...)	2832	new (char *klass, ...)
		2833	ALIAS:
		2834	Coro::new = 1
2350	CODE:	2835	CODE:
2351	{	2836	{
2352	struct coro *coro;	2837	struct coro *coro;
2353	MAGIC *mg;	2838	MAGIC *mg;
2354	HV *hv;	2839	HV *hv;
		2840	CV *cb;
2355	int i;	2841	int i;
		2842
		2843	if (items > 1)
		2844	{
		2845	cb = coro_sv_2cv (aTHX_ ST (1));
		2846
		2847	if (!ix)
		2848	{
		2849	if (CvISXSUB (cb))
		2850	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2851
		2852	if (!CvROOT (cb))
		2853	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2854	}
		2855	}
2356		2856
2357	Newz (0, coro, 1, struct coro);	2857	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2858	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2859	coro->flags = CF_NEW;
2360		2860
…		…
2365	coro->hv = hv = newHV ();	2865	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2866	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2367	mg->mg_flags |= MGf_DUP;	2867	mg->mg_flags |= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2868	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2869
		2870	if (items > 1)
		2871	{
2370	av_extend (coro->args, items - 1);	2872	av_extend (coro->args, items - 1 + ix - 1);
		2873
		2874	if (ix)
		2875	{
		2876	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2877	cb = cv_coro_run;
		2878	}
		2879
		2880	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2881
2371	for (i = 1; i < items; i++)	2882	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2883	av_push (coro->args, newSVsv (ST (i)));
		2884	}
2373	}	2885	}
2374	OUTPUT:	2886	OUTPUT:
2375	RETVAL	2887	RETVAL
2376		2888
2377	void	2889	void
…		…
2390	void	2902	void
2391	_exit (int code)	2903	_exit (int code)
2392	PROTOTYPE: $	2904	PROTOTYPE: $
2393	CODE:	2905	CODE:
2394	_exit (code);	2906	_exit (code);
		2907
		2908	SV *
		2909	clone (Coro::State coro)
		2910	CODE:
		2911	{
		2912	#if CORO_CLONE
		2913	struct coro *ncoro = coro_clone (coro);
		2914	MAGIC *mg;
		2915	/* TODO: too much duplication */
		2916	ncoro->hv = newHV ();
		2917	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2918	mg->mg_flags |= MGf_DUP;
		2919	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2920	#else
		2921	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2922	#endif
		2923	}
		2924	OUTPUT:
		2925	RETVAL
2395		2926
2396	int	2927	int
2397	cctx_stacksize (int new_stacksize = 0)	2928	cctx_stacksize (int new_stacksize = 0)
2398	PROTOTYPE: ;$	2929	PROTOTYPE: ;$
2399	CODE:	2930	CODE:
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	3037	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	3038	PROTOTYPE: $;$
2508	CODE:	3039	CODE:
2509	{	3040	{
2510	struct coro *current = SvSTATE_current;	3041	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	3042	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	3043	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3044	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	3045	}
2515		3046
2516	void	3047	void
…		…
2520		3051
2521	SV *	3052	SV *
2522	has_cctx (Coro::State coro)	3053	has_cctx (Coro::State coro)
2523	PROTOTYPE: $	3054	PROTOTYPE: $
2524	CODE:	3055	CODE:
2525	RETVAL = boolSV (!!coro->cctx);	3056	/* maybe manage the running flag differently */
		3057	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2526	OUTPUT:	3058	OUTPUT:
2527	RETVAL	3059	RETVAL
2528		3060
2529	int	3061	int
2530	is_traced (Coro::State coro)	3062	is_traced (Coro::State coro)
…		…
2550		3082
2551	void	3083	void
2552	force_cctx ()	3084	force_cctx ()
2553	PROTOTYPE:	3085	PROTOTYPE:
2554	CODE:	3086	CODE:
2555	SvSTATE_current->cctx->idle_sp = 0;	3087	cctx_current->idle_sp = 0;
2556		3088
2557	void	3089	void
2558	swap_defsv (Coro::State self)	3090	swap_defsv (Coro::State self)
2559	PROTOTYPE: $	3091	PROTOTYPE: $
2560	ALIAS:	3092	ALIAS:
…		…
2575		3107
2576	BOOT:	3108	BOOT:
2577	{	3109	{
2578	int i;	3110	int i;
2579		3111
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3112	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3113	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		3114	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3115	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3116	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585	SvREADONLY_on (coro_current);	3117	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3118	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3119	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3120	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3121
		3122	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3123	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3124	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3125	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2586		3126
2587	coro_stash = gv_stashpv ("Coro", TRUE);	3127	coro_stash = gv_stashpv ("Coro", TRUE);
2588		3128
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3129	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3130	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2598		3138
2599	{	3139	{
2600	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3140	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601		3141
2602	coroapi.schedule = api_schedule;	3142	coroapi.schedule = api_schedule;
		3143	coroapi.schedule_to = api_schedule_to;
2603	coroapi.cede = api_cede;	3144	coroapi.cede = api_cede;
2604	coroapi.cede_notself = api_cede_notself;	3145	coroapi.cede_notself = api_cede_notself;
2605	coroapi.ready = api_ready;	3146	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	3147	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	3148	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	3149	coroapi.current = coro_current;
2609		3150
2610	GCoroAPI = &coroapi;	3151	/*GCoroAPI = &coroapi;*/
2611	sv_setiv (sv, (IV)&coroapi);	3152	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	3153	SvREADONLY_on (sv);
2613	}	3154	}
2614	}	3155	}
		3156
		3157	void
		3158	terminate (...)
		3159	CODE:
		3160	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615		3161
2616	void	3162	void
2617	schedule (...)	3163	schedule (...)
2618	CODE:	3164	CODE:
2619	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3165	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2620		3166
2621	void	3167	void
		3168	schedule_to (...)
		3169	CODE:
		3170	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3171
		3172	void
		3173	cede_to (...)
		3174	CODE:
		3175	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3176
		3177	void
2622	cede (...)	3178	cede (...)
2623	CODE:	3179	CODE:
2624	CORO_EXECUTE_SLF_XS (slf_init_cede);	3180	CORO_EXECUTE_SLF_XS (slf_init_cede);
2625		3181
2626	void	3182	void
2627	cede_notself (...)	3183	cede_notself (...)
2628	CODE:	3184	CODE:
2629	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3185	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3186
		3187	void
		3188	_cancel (Coro::State self)
		3189	CODE:
		3190	coro_state_destroy (aTHX_ self);
		3191	coro_call_on_destroy (aTHX_ self);
2630		3192
2631	void	3193	void
2632	_set_current (SV *current)	3194	_set_current (SV *current)
2633	PROTOTYPE: $	3195	PROTOTYPE: $
2634	CODE:	3196	CODE:
…		…
2679	CODE:	3241	CODE:
2680	RETVAL = coro_nready;	3242	RETVAL = coro_nready;
2681	OUTPUT:	3243	OUTPUT:
2682	RETVAL	3244	RETVAL
2683		3245
2684	# for async_pool speedup
2685	void	3246	void
2686	_pool_1 (SV *cb)	3247	_pool_handler (...)
2687	CODE:	3248	CODE:
2688	{	3249	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		3250
2696	if (!invoke)	3251	void
		3252	async_pool (SV *cv, ...)
		3253	PROTOTYPE: &@
		3254	PPCODE:
		3255	{
		3256	HV *hv = (HV *)av_pop (av_async_pool);
		3257	AV *av = newAV ();
		3258	SV *cb = ST (0);
		3259	int i;
		3260
		3261	av_extend (av, items - 2);
		3262	for (i = 1; i < items; ++i)
		3263	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3264
		3265	if ((SV *)hv == &PL_sv_undef)
2697	{	3266	{
2698	SV *old = PL_diehook;	3267	PUSHMARK (SP);
2699	PL_diehook = 0;	3268	EXTEND (SP, 2);
2700	SvREFCNT_dec (old);	3269	PUSHs (sv_Coro);
2701	croak ("\3async_pool terminate\2\n");	3270	PUSHs ((SV *)cv_pool_handler);
		3271	PUTBACK;
		3272	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3273	SPAGAIN;
		3274
		3275	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702	}	3276	}
2703		3277
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	{	3278	{
2717	av_fill (defav, len - 1);	3279	struct coro *coro = SvSTATE_hv (hv);
2718	for (i = 0; i < len; ++i)	3280
2719	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3281	assert (!coro->invoke_cb);
		3282	assert (!coro->invoke_av);
		3283	coro->invoke_cb = SvREFCNT_inc (cb);
		3284	coro->invoke_av = av;
2720	}	3285	}
		3286
		3287	api_ready (aTHX_ (SV *)hv);
		3288
		3289	if (GIMME_V != G_VOID)
		3290	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3291	else
		3292	SvREFCNT_dec (hv);
2721	}	3293	}
		3294
		3295	SV *
		3296	rouse_cb ()
		3297	PROTOTYPE:
		3298	CODE:
		3299	RETVAL = coro_new_rouse_cb (aTHX);
		3300	OUTPUT:
		3301	RETVAL
2722		3302
2723	void	3303	void
2724	_pool_2 (SV *cb)	3304	rouse_wait (...)
		3305	PROTOTYPE: ;$
2725	CODE:	3306	PPCODE:
2726	{	3307	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		3308
2756		3309
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3310	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3311
2759	BOOT:	3312	BOOT:
…		…
2761		3314
2762		3315
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3316	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3317
2765	SV *	3318	SV *
2766	new (SV *klass, SV *count_ = 0)	3319	new (SV *klass, SV *count = 0)
2767	CODE:	3320	CODE:
2768	{	3321	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3322	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3323	GvSTASH (CvGV (cv))
2771	SV **ary;	3324	);
		3325	OUTPUT:
		3326	RETVAL
2772		3327
2773	/* unfortunately, building manually saves memory */	3328	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3329	SV *
2775	AvALLOC (av) = ary;	3330	_alloc (int count)
2776	AvARRAY (av) = ary;	3331	CODE:
2777	AvMAX (av) = 1;	3332	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:	3333	OUTPUT:
2784	RETVAL	3334	RETVAL
2785		3335
2786	SV *	3336	SV *
2787	count (SV *self)	3337	count (SV *self)
…		…
2796	adjust = 1	3346	adjust = 1
2797	CODE:	3347	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3348	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3349
2800	void	3350	void
2801	down (SV *self)	3351	down (...)
2802	CODE:	3352	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3353	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3354
		3355	void
		3356	wait (...)
		3357	CODE:
		3358	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3359
2805	void	3360	void
2806	try (SV *self)	3361	try (SV *self)
2807	PPCODE:	3362	PPCODE:
2808	{	3363	{
…		…
2820	XSRETURN_NO;	3375	XSRETURN_NO;
2821	}	3376	}
2822		3377
2823	void	3378	void
2824	waiters (SV *self)	3379	waiters (SV *self)
2825	CODE:	3380	PPCODE:
2826	{	3381	{
2827	AV *av = (AV *)SvRV (self);	3382	AV *av = (AV *)SvRV (self);
		3383	int wcount = AvFILLp (av) + 1 - 1;
2828		3384
2829	if (GIMME_V == G_SCALAR)	3385	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3386	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3387	else
2832	{	3388	{
2833	int i;	3389	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3390	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3391	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3392	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3393	}
2838	}	3394	}
		3395
		3396	MODULE = Coro::State PACKAGE = Coro::Signal
		3397
		3398	SV *
		3399	new (SV *klass)
		3400	CODE:
		3401	RETVAL = sv_bless (
		3402	coro_waitarray_new (aTHX_ 0),
		3403	GvSTASH (CvGV (cv))
		3404	);
		3405	OUTPUT:
		3406	RETVAL
		3407
		3408	void
		3409	wait (...)
		3410	CODE:
		3411	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3412
		3413	void
		3414	broadcast (SV *self)
		3415	CODE:
		3416	{
		3417	AV *av = (AV *)SvRV (self);
		3418	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3419	}
		3420
		3421	void
		3422	send (SV *self)
		3423	CODE:
		3424	{
		3425	AV *av = (AV *)SvRV (self);
		3426
		3427	if (AvFILLp (av))
		3428	coro_signal_wake (aTHX_ av, 1);
		3429	else
		3430	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3431	}
		3432
		3433	IV
		3434	awaited (SV *self)
		3435	CODE:
		3436	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3437	OUTPUT:
		3438	RETVAL
2839		3439
2840		3440
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3441	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3442
2843	BOOT:	3443	BOOT:
…		…
2871		3471
2872	void	3472	void
2873	_register (char *target, char *proto, SV *req)	3473	_register (char *target, char *proto, SV *req)
2874	CODE:	3474	CODE:
2875	{	3475	{
2876	HV *st;	3476	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 */	3477	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3478	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3479	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3480	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3481	}

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