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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.295 by root, Tue Nov 18 10:35:01 2008 UTC vs.
Revision 1.328 by root, Tue Nov 25 09:49:43 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
…		…
145	#define expect_true(expr) expect ((expr) != 0, 1)	151	#define expect_true(expr) expect ((expr) != 0, 1)
146		152
147	#define NOINLINE attribute ((noinline))	153	#define NOINLINE attribute ((noinline))
148		154
149	#include "CoroAPI.h"	155	#include "CoroAPI.h"
		156	#define GCoroAPI (&coroapi) /* very sneaky */
150		157
151	#ifdef USE_ITHREADS	158	#ifdef USE_ITHREADS
152	# if CORO_PTHREAD	159	# if CORO_PTHREAD
153	static void *coro_thx;	160	static void *coro_thx;
154	# endif	161	# endif
…		…
166	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
167	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
168	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
169	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 */
170		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
		181
171	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
172	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
173	static SV *rv_diehook;	184	static SV *rv_diehook;
174	static SV *rv_warnhook;	185	static SV *rv_warnhook;
175	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
176		187
177	/* async_pool helper stuff */	188	/* async_pool helper stuff */
178	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
179	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV *sv_async_pool_idle; /* description string */
180	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;
181		196
182	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
183	static SV *sv_activity;	198	static SV *sv_activity;
184		199
185	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
214	int valgrind_id;	229	int valgrind_id;
215	#endif	230	#endif
216	unsigned char flags;	231	unsigned char flags;
217	} coro_cctx;	232	} coro_cctx;
218		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
219	enum {	238	enum {
220	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
221	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
222	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
223	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
228	{	247	{
229	SV *defsv;	248	SV *defsv;
230	AV *defav;	249	AV *defav;
231	SV *errsv;	250	SV *errsv;
232	SV *irsgv;	251	SV *irsgv;
		252	HV *hinthv;
233	#define VAR(name,type) type name;	253	#define VAR(name,type) type name;
234	# include "state.h"	254	# include "state.h"
235	#undef VAR	255	#undef VAR
236	} perl_slots;	256	} perl_slots;
237		257
…		…
245	/* state data */	265	/* state data */
246	struct CoroSLF slf_frame; /* saved slf frame */	266	struct CoroSLF slf_frame; /* saved slf frame */
247	AV *mainstack;	267	AV *mainstack;
248	perl_slots *slot; /* basically the saved sp */	268	perl_slots *slot; /* basically the saved sp */
249		269
		270	CV *startcv; /* the CV to execute */
250	AV *args; /* data associated with this coroutine (initial args) */	271	AV *args; /* data associated with this coroutine (initial args) */
251	int refcnt; /* coroutines are refcounted, yes */	272	int refcnt; /* coroutines are refcounted, yes */
252	int flags; /* CF_ flags */	273	int flags; /* CF_ flags */
253	HV *hv; /* the perl hash associated with this coro, if any */	274	HV *hv; /* the perl hash associated with this coro, if any */
254	void (*on_destroy)(pTHX_ struct coro *coro);	275	void (*on_destroy)(pTHX_ struct coro *coro);
255		276
256	/* statistics */	277	/* statistics */
257	int usecount; /* number of transfers to this coro */	278	int usecount; /* number of transfers to this coro */
258		279
259	/* coro process data */	280	/* coro process data */
260	int prio;	281	int prio;
261	SV *throw; /* exception to be thrown */	282	SV *except; /* exception to be thrown */
		283	SV *rouse_cb;
262		284
263	/* async_pool */	285	/* async_pool */
264	SV *saved_deffh;	286	SV *saved_deffh;
		287	SV *invoke_cb;
		288	AV *invoke_av;
265		289
266	/* linked list */	290	/* linked list */
267	struct coro *next, *prev;	291	struct coro *next, *prev;
268	};	292	};
269		293
…		…
272		296
273	/* the following variables are effectively part of the perl context */	297	/* the following variables are effectively part of the perl context */
274	/* and get copied between struct coro and these variables */	298	/* and get copied between struct coro and these variables */
275	/* the mainr easonw e don't support windows process emulation */	299	/* the mainr easonw e don't support windows process emulation */
276	static struct CoroSLF slf_frame; /* the current slf frame */	300	static struct CoroSLF slf_frame; /* the current slf frame */
277	static SV *coro_throw;
278		301
279	/** Coro ********************************************************************/	302	/** Coro ********************************************************************/
280		303
281	#define PRIO_MAX 3	304	#define PRIO_MAX 3
282	#define PRIO_HIGH 1	305	#define PRIO_HIGH 1
…		…
287		310
288	/* for Coro.pm */	311	/* for Coro.pm */
289	static SV *coro_current;	312	static SV *coro_current;
290	static SV *coro_readyhook;	313	static SV *coro_readyhook;
291	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;
292	static struct coro *coro_first;	316	static struct coro *coro_first;
293	#define coro_nready coroapi.nready	317	#define coro_nready coroapi.nready
294		318
295	/** lowlevel stuff **********************************************************/	319	/** lowlevel stuff **********************************************************/
296		320
…		…
322	get_hv (name, create);	346	get_hv (name, create);
323	#endif	347	#endif
324	return get_hv (name, create);	348	return get_hv (name, create);
325	}	349	}
326		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
327	static AV *	360	static AV *
328	coro_clone_padlist (pTHX_ CV *cv)	361	coro_derive_padlist (pTHX_ CV *cv)
329	{	362	{
330	AV *padlist = CvPADLIST (cv);	363	AV *padlist = CvPADLIST (cv);
331	AV *newpadlist, *newpad;	364	AV *newpadlist, *newpad;
332		365
333	newpadlist = newAV ();	366	newpadlist = newAV ();
…		…
448	else	481	else
449	{	482	{
450	#if CORO_PREFER_PERL_FUNCTIONS	483	#if CORO_PREFER_PERL_FUNCTIONS
451	/* this is probably cleaner? but also slower! */	484	/* this is probably cleaner? but also slower! */
452	/* in practise, it seems to be less stable */	485	/* in practise, it seems to be less stable */
453	CV *cp = Perl_cv_clone (cv);	486	CV *cp = Perl_cv_clone (aTHX_ cv);
454	CvPADLIST (cv) = CvPADLIST (cp);	487	CvPADLIST (cv) = CvPADLIST (cp);
455	CvPADLIST (cp) = 0;	488	CvPADLIST (cp) = 0;
456	SvREFCNT_dec (cp);	489	SvREFCNT_dec (cp);
457	#else	490	#else
458	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	491	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
459	#endif	492	#endif
460	}	493	}
461	}	494	}
462		495
463	static void	496	static void
…		…
485	perl_slots *slot = c->slot;	518	perl_slots *slot = c->slot;
486	c->slot = 0;	519	c->slot = 0;
487		520
488	PL_mainstack = c->mainstack;	521	PL_mainstack = c->mainstack;
489		522
490	GvSV (PL_defgv) = slot->defsv;	523	GvSV (PL_defgv) = slot->defsv;
491	GvAV (PL_defgv) = slot->defav;	524	GvAV (PL_defgv) = slot->defav;
492	GvSV (PL_errgv) = slot->errsv;	525	GvSV (PL_errgv) = slot->errsv;
493	GvSV (irsgv) = slot->irsgv;	526	GvSV (irsgv) = slot->irsgv;
		527	GvHV (PL_hintgv) = slot->hinthv;
494		528
495	#define VAR(name,type) PL_ ## name = slot->name;	529	#define VAR(name,type) PL_ ## name = slot->name;
496	# include "state.h"	530	# include "state.h"
497	#undef VAR	531	#undef VAR
498		532
…		…
511		545
512	PUTBACK;	546	PUTBACK;
513	}	547	}
514		548
515	slf_frame = c->slf_frame;	549	slf_frame = c->slf_frame;
516	coro_throw = c->throw;	550	CORO_THROW = c->except;
517	}	551	}
518		552
519	static void	553	static void
520	save_perl (pTHX_ Coro__State c)	554	save_perl (pTHX_ Coro__State c)
521	{	555	{
522	c->throw = coro_throw;	556	c->except = CORO_THROW;
523	c->slf_frame = slf_frame;	557	c->slf_frame = slf_frame;
524		558
525	{	559	{
526	dSP;	560	dSP;
527	I32 cxix = cxstack_ix;	561	I32 cxix = cxstack_ix;
…		…
584	c->mainstack = PL_mainstack;	618	c->mainstack = PL_mainstack;
585		619
586	{	620	{
587	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	621	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
588		622
589	slot->defav = GvAV (PL_defgv);	623	slot->defav = GvAV (PL_defgv);
590	slot->defsv = DEFSV;	624	slot->defsv = DEFSV;
591	slot->errsv = ERRSV;	625	slot->errsv = ERRSV;
592	slot->irsgv = GvSV (irsgv);	626	slot->irsgv = GvSV (irsgv);
		627	slot->hinthv = GvHV (PL_hintgv);
593		628
594	#define VAR(name,type) slot->name = PL_ ## name;	629	#define VAR(name,type) slot->name = PL_ ## name;
595	# include "state.h"	630	# include "state.h"
596	#undef VAR	631	#undef VAR
597	}	632	}
…		…
602	* of perl.c:init_stacks, except that it uses less memory	637	* of perl.c:init_stacks, except that it uses less memory
603	* on the (sometimes correct) assumption that coroutines do	638	* on the (sometimes correct) assumption that coroutines do
604	* not usually need a lot of stackspace.	639	* not usually need a lot of stackspace.
605	*/	640	*/
606	#if CORO_PREFER_PERL_FUNCTIONS	641	#if CORO_PREFER_PERL_FUNCTIONS
607	# define coro_init_stacks init_stacks	642	# define coro_init_stacks(thx) init_stacks ()
608	#else	643	#else
609	static void	644	static void
610	coro_init_stacks (pTHX)	645	coro_init_stacks (pTHX)
611	{	646	{
612	PL_curstackinfo = new_stackinfo(32, 8);	647	PL_curstackinfo = new_stackinfo(32, 8);
…		…
675	#if !PERL_VERSION_ATLEAST (5,10,0)	710	#if !PERL_VERSION_ATLEAST (5,10,0)
676	Safefree (PL_retstack);	711	Safefree (PL_retstack);
677	#endif	712	#endif
678	}	713	}
679		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
680	static size_t	724	static size_t
681	coro_rss (pTHX_ struct coro *coro)	725	coro_rss (pTHX_ struct coro *coro)
682	{	726	{
683	size_t rss = sizeof (*coro);	727	size_t rss = sizeof (*coro);
684		728
685	if (coro->mainstack)	729	if (coro->mainstack)
686	{	730	{
687	perl_slots tmp_slot;
688	perl_slots *slot;
689
690	if (coro->flags & CF_RUNNING)	731	if (coro->flags & CF_RUNNING)
691	{	732	{
692	slot = &tmp_slot;	733	#define SYM(sym) PL_ ## sym
693		734	CORO_RSS;
694	#define VAR(name,type) slot->name = PL_ ## name;
695	# include "state.h"
696	#undef VAR	735	#undef SYM
697	}	736	}
698	else	737	else
699	slot = coro->slot;
700
701	if (slot)
702	{	738	{
703	rss += sizeof (slot->curstackinfo);	739	#define SYM(sym) coro->slot->sym
704	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	740	CORO_RSS;
705	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	741	#undef SYM
706	rss += slot->tmps_max * sizeof (SV *);
707	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
708	rss += slot->scopestack_max * sizeof (I32);
709	rss += slot->savestack_max * sizeof (ANY);
710
711	#if !PERL_VERSION_ATLEAST (5,10,0)
712	rss += slot->retstack_max * sizeof (OP *);
713	#endif
714	}	742	}
715	}	743	}
716		744
717	return rss;	745	return rss;
718	}	746	}
…		…
820	slf_check_nop (pTHX_ struct CoroSLF *frame)	848	slf_check_nop (pTHX_ struct CoroSLF *frame)
821	{	849	{
822	return 0;	850	return 0;
823	}	851	}
824		852
		853	static int
		854	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		855	{
		856	return 1;
		857	}
		858
825	static UNOP coro_setup_op;	859	static UNOP coro_setup_op;
826		860
827	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 */
828	coro_setup (pTHX_ struct coro *coro)	862	coro_setup (pTHX_ struct coro *coro)
829	{	863	{
…		…
834		868
835	PL_runops = RUNOPS_DEFAULT;	869	PL_runops = RUNOPS_DEFAULT;
836	PL_curcop = &PL_compiling;	870	PL_curcop = &PL_compiling;
837	PL_in_eval = EVAL_NULL;	871	PL_in_eval = EVAL_NULL;
838	PL_comppad = 0;	872	PL_comppad = 0;
		873	PL_comppad_name = 0;
		874	PL_comppad_name_fill = 0;
		875	PL_comppad_name_floor = 0;
839	PL_curpm = 0;	876	PL_curpm = 0;
840	PL_curpad = 0;	877	PL_curpad = 0;
841	PL_localizing = 0;	878	PL_localizing = 0;
842	PL_dirty = 0;	879	PL_dirty = 0;
843	PL_restartop = 0;	880	PL_restartop = 0;
844	#if PERL_VERSION_ATLEAST (5,10,0)	881	#if PERL_VERSION_ATLEAST (5,10,0)
845	PL_parser = 0;	882	PL_parser = 0;
846	#endif	883	#endif
		884	PL_hints = 0;
847		885
848	/* recreate the die/warn hooks */	886	/* recreate the die/warn hooks */
849	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 );
850	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);
851		889
852	GvSV (PL_defgv) = newSV (0);	890	GvSV (PL_defgv) = newSV (0);
853	GvAV (PL_defgv) = coro->args; coro->args = 0;	891	GvAV (PL_defgv) = coro->args; coro->args = 0;
854	GvSV (PL_errgv) = newSV (0);	892	GvSV (PL_errgv) = newSV (0);
855	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;
856	PL_rs = newSVsv (GvSV (irsgv));	895	PL_rs = newSVsv (GvSV (irsgv));
857	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	896	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
858		897
859	{	898	{
860	dSP;	899	dSP;
861	UNOP myop;	900	UNOP myop;
862		901
863	Zero (&myop, 1, UNOP);	902	Zero (&myop, 1, UNOP);
864	myop.op_next = Nullop;	903	myop.op_next = Nullop;
		904	myop.op_type = OP_ENTERSUB;
865	myop.op_flags = OPf_WANT_VOID;	905	myop.op_flags = OPf_WANT_VOID;
866		906
867	PUSHMARK (SP);	907	PUSHMARK (SP);
868	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	908	PUSHs ((SV *)coro->startcv);
869	PUTBACK;	909	PUTBACK;
870	PL_op = (OP *)&myop;	910	PL_op = (OP *)&myop;
871	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	911	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
872	SPAGAIN;
873	}	912	}
874		913
875	/* 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
876	* 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.
877	*/	916	*/
878	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 */
879	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 */
880		919
881	/* 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 */
882	coro_setup_op.op_next = PL_op;	921	coro_setup_op.op_next = PL_op;
883	coro_setup_op.op_type = OP_CUSTOM;	922	coro_setup_op.op_type = OP_ENTERSUB;
884	coro_setup_op.op_ppaddr = pp_slf;	923	coro_setup_op.op_ppaddr = pp_slf;
885	/* no flags required, as an init function won't be called */	924	/* no flags etc. required, as an init function won't be called */
886		925
887	PL_op = (OP *)&coro_setup_op;	926	PL_op = (OP *)&coro_setup_op;
888		927
889	/* copy throw, in case it was set before coro_setup */	928	/* copy throw, in case it was set before coro_setup */
890	coro_throw = coro->throw;	929	CORO_THROW = coro->except;
891	}	930	}
892		931
893	static void	932	static void
894	coro_destruct (pTHX_ struct coro *coro)	933	coro_destruct (pTHX_ struct coro *coro)
895	{	934	{
…		…
914	SvREFCNT_dec (GvAV (PL_defgv));	953	SvREFCNT_dec (GvAV (PL_defgv));
915	SvREFCNT_dec (GvSV (PL_errgv));	954	SvREFCNT_dec (GvSV (PL_errgv));
916	SvREFCNT_dec (PL_defoutgv);	955	SvREFCNT_dec (PL_defoutgv);
917	SvREFCNT_dec (PL_rs);	956	SvREFCNT_dec (PL_rs);
918	SvREFCNT_dec (GvSV (irsgv));	957	SvREFCNT_dec (GvSV (irsgv));
		958	SvREFCNT_dec (GvHV (PL_hintgv));
919		959
920	SvREFCNT_dec (PL_diehook);	960	SvREFCNT_dec (PL_diehook);
921	SvREFCNT_dec (PL_warnhook);	961	SvREFCNT_dec (PL_warnhook);
922		962
923	SvREFCNT_dec (coro->saved_deffh);	963	SvREFCNT_dec (coro->saved_deffh);
924	SvREFCNT_dec (coro_throw);	964	SvREFCNT_dec (coro->rouse_cb);
		965	SvREFCNT_dec (coro->invoke_cb);
		966	SvREFCNT_dec (coro->invoke_av);
925		967
926	coro_destruct_stacks (aTHX);	968	coro_destruct_stacks (aTHX);
927	}	969	}
928		970
929	INLINE void	971	INLINE void
…		…
939	static int	981	static int
940	runops_trace (pTHX)	982	runops_trace (pTHX)
941	{	983	{
942	COP *oldcop = 0;	984	COP *oldcop = 0;
943	int oldcxix = -2;	985	int oldcxix = -2;
944	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
945	coro_cctx *cctx = coro->cctx;
946		986
947	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	987	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
948	{	988	{
949	PERL_ASYNC_CHECK ();	989	PERL_ASYNC_CHECK ();
950		990
951	if (cctx->flags & CC_TRACE_ALL)	991	if (cctx_current->flags & CC_TRACE_ALL)
952	{	992	{
953	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)
954	{	994	{
955	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	995	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
956	SV **bot, **top;	996	SV **bot, **top;
957	AV *av = newAV (); /* return values */	997	AV *av = newAV (); /* return values */
958	SV **cb;	998	SV **cb;
…		…
995		1035
996	if (PL_curcop != &PL_compiling)	1036	if (PL_curcop != &PL_compiling)
997	{	1037	{
998	SV **cb;	1038	SV **cb;
999		1039
1000	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1040	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1001	{	1041	{
1002	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1042	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1003		1043
1004	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1044	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1005	{	1045	{
1006	runops_proc_t old_runops = PL_runops;
1007	dSP;	1046	dSP;
1008	GV *gv = CvGV (cx->blk_sub.cv);	1047	GV *gv = CvGV (cx->blk_sub.cv);
1009	SV *fullname = sv_2mortal (newSV (0));	1048	SV *fullname = sv_2mortal (newSV (0));
1010		1049
1011	if (isGV (gv))	1050	if (isGV (gv))
…		…
1016	SAVETMPS;	1055	SAVETMPS;
1017	EXTEND (SP, 3);	1056	EXTEND (SP, 3);
1018	PUSHMARK (SP);	1057	PUSHMARK (SP);
1019	PUSHs (&PL_sv_yes);	1058	PUSHs (&PL_sv_yes);
1020	PUSHs (fullname);	1059	PUSHs (fullname);
1021	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);
1022	PUTBACK;	1061	PUTBACK;
1023	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);
1024	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);
1025	SPAGAIN;	1064	SPAGAIN;
1026	FREETMPS;	1065	FREETMPS;
…		…
1029	}	1068	}
1030		1069
1031	oldcxix = cxstack_ix;	1070	oldcxix = cxstack_ix;
1032	}	1071	}
1033		1072
1034	if (cctx->flags & CC_TRACE_LINE)	1073	if (cctx_current->flags & CC_TRACE_LINE)
1035	{	1074	{
1036	dSP;	1075	dSP;
1037		1076
1038	PL_runops = RUNOPS_DEFAULT;	1077	PL_runops = RUNOPS_DEFAULT;
1039	ENTER;	1078	ENTER;
…		…
1058		1097
1059	TAINT_NOT;	1098	TAINT_NOT;
1060	return 0;	1099	return 0;
1061	}	1100	}
1062		1101
1063	static struct coro_cctx *cctx_ssl_cctx;
1064	static struct CoroSLF cctx_ssl_frame;	1102	static struct CoroSLF cctx_ssl_frame;
1065		1103
1066	static void	1104	static void
1067	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1105	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1068	{	1106	{
1069	ta->prev = (struct coro *)cctx_ssl_cctx;
1070	ta->next = 0;	1107	ta->prev = 0;
1071	}	1108	}
1072		1109
1073	static int	1110	static int
1074	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1111	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1075	{	1112	{
…		…
1078	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1115	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1079	}	1116	}
1080		1117
1081	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1118	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1082	static void NOINLINE	1119	static void NOINLINE
1083	cctx_prepare (pTHX_ coro_cctx *cctx)	1120	cctx_prepare (pTHX)
1084	{	1121	{
1085	PL_top_env = &PL_start_env;	1122	PL_top_env = &PL_start_env;
1086		1123
1087	if (cctx->flags & CC_TRACE)	1124	if (cctx_current->flags & CC_TRACE)
1088	PL_runops = runops_trace;	1125	PL_runops = runops_trace;
1089		1126
1090	/* we already must be executing an SLF op, there is no other valid way	1127	/* we already must be executing an SLF op, there is no other valid way
1091	* that can lead to creation of a new cctx */	1128	* that can lead to creation of a new cctx */
1092	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)",
1093	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1130	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1094		1131
1095	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1132	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1096	cctx_ssl_cctx = cctx;
1097	cctx_ssl_frame = slf_frame;	1133	cctx_ssl_frame = slf_frame;
1098		1134
1099	slf_frame.prepare = slf_prepare_set_stacklevel;	1135	slf_frame.prepare = slf_prepare_set_stacklevel;
1100	slf_frame.check = slf_check_set_stacklevel;	1136	slf_frame.check = slf_check_set_stacklevel;
1101	}	1137	}
…		…
1124	/* normally we would need to skip the entersub here */	1160	/* normally we would need to skip the entersub here */
1125	/* 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 */
1126	/* PL_nop = PL_nop->op_next */	1162	/* PL_nop = PL_nop->op_next */
1127		1163
1128	/* inject a fake subroutine call to cctx_init */	1164	/* inject a fake subroutine call to cctx_init */
1129	cctx_prepare (aTHX_ (coro_cctx *)arg);	1165	cctx_prepare (aTHX);
1130		1166
1131	/* cctx_run is the alternative tail of transfer() */	1167	/* cctx_run is the alternative tail of transfer() */
1132	transfer_tail (aTHX);	1168	transfer_tail (aTHX);
1133		1169
1134	/* 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 */
1135	PL_restartop = PL_op;	1171	PL_restartop = PL_op;
1136	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	*/
1137		1177
1138	/*	1178	/*
1139	* 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
1140	* 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)
1141	* 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
1142	* bootstrap-time "top" top_env, as we cannot restore the "main"	1182	* bootstrap-time "top" top_env, as we cannot restore the "main"
1143	* coroutine as Coro has no such concept	1183	* coroutine as Coro has no such concept.
		1184	* This actually isn't valid with the pthread backend, but OSes requiring
		1185	* that backend are too broken to do it in a standards-compliant way.
1144	*/	1186	*/
1145	PL_top_env = main_top_env;	1187	PL_top_env = main_top_env;
1146	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1188	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1147	}	1189	}
1148	}	1190	}
…		…
1225	cctx_destroy (coro_cctx *cctx)	1267	cctx_destroy (coro_cctx *cctx)
1226	{	1268	{
1227	if (!cctx)	1269	if (!cctx)
1228	return;	1270	return;
1229		1271
		1272	assert (cctx != cctx_current);//D temporary
		1273
1230	--cctx_count;	1274	--cctx_count;
1231	coro_destroy (&cctx->cctx);	1275	coro_destroy (&cctx->cctx);
1232		1276
1233	/* coro_transfer creates new, empty cctx's */	1277	/* coro_transfer creates new, empty cctx's */
1234	if (cctx->sptr)	1278	if (cctx->sptr)
…		…
1297	/* TODO: throwing up here is considered harmful */	1341	/* TODO: throwing up here is considered harmful */
1298		1342
1299	if (expect_true (prev != next))	1343	if (expect_true (prev != next))
1300	{	1344	{
1301	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1345	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1302	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1346	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1303		1347
1304	if (expect_false (next->flags & CF_RUNNING))	1348	if (expect_false (next->flags & CF_RUNNING))
1305	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");	1349	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1306		1350
1307	if (expect_false (next->flags & CF_DESTROYED))	1351	if (expect_false (next->flags & CF_DESTROYED))
…		…
1319	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1363	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1320	{	1364	{
1321	dSTACKLEVEL;	1365	dSTACKLEVEL;
1322		1366
1323	/* sometimes transfer is only called to set idle_sp */	1367	/* sometimes transfer is only called to set idle_sp */
1324	if (expect_false (!next))	1368	if (expect_false (!prev))
1325	{	1369	{
1326	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1370	cctx_current->idle_sp = STACKLEVEL;
1327	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1371	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1328	}	1372	}
1329	else if (expect_true (prev != next))	1373	else if (expect_true (prev != next))
1330	{	1374	{
1331	coro_cctx *prev__cctx;	1375	coro_cctx *cctx_prev;
1332		1376
1333	if (expect_false (prev->flags & CF_NEW))	1377	if (expect_false (prev->flags & CF_NEW))
1334	{	1378	{
1335	/* create a new empty/source context */	1379	/* create a new empty/source context */
1336	prev->cctx = cctx_new_empty ();
1337	prev->flags &= ~CF_NEW;	1380	prev->flags &= ~CF_NEW;
1338	prev->flags |= CF_RUNNING;	1381	prev->flags |= CF_RUNNING;
1339	}	1382	}
1340		1383
1341	prev->flags &= ~CF_RUNNING;	1384	prev->flags &= ~CF_RUNNING;
…		…
1352	coro_setup (aTHX_ next);	1395	coro_setup (aTHX_ next);
1353	}	1396	}
1354	else	1397	else
1355	load_perl (aTHX_ next);	1398	load_perl (aTHX_ next);
1356		1399
1357	prev__cctx = prev->cctx;	1400	assert (!prev->cctx);//D temporary
1358		1401
1359	/* possibly untie and reuse the cctx */	1402	/* possibly untie and reuse the cctx */
1360	if (expect_true (	1403	if (expect_true (
1361	prev__cctx->idle_sp == STACKLEVEL	1404	cctx_current->idle_sp == STACKLEVEL
1362	&& !(prev__cctx->flags & CC_TRACE)	1405	&& !(cctx_current->flags & CC_TRACE)
1363	&& !force_cctx	1406	&& !force_cctx
1364	))	1407	))
1365	{	1408	{
1366	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1409	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1367	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1410	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1368		1411
1369	prev->cctx = 0;
1370
1371	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1412	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1372	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1413	/* without this the next cctx_get might destroy the running cctx while still in use */
1373	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1414	if (expect_false (CCTX_EXPIRED (cctx_current)))
1374	if (!next->cctx)	1415	if (expect_true (!next->cctx))
1375	next->cctx = cctx_get (aTHX);	1416	next->cctx = cctx_get (aTHX);
1376		1417
1377	cctx_put (prev__cctx);	1418	cctx_put (cctx_current);
1378	}	1419	}
		1420	else
		1421	prev->cctx = cctx_current;
1379		1422
1380	++next->usecount;	1423	++next->usecount;
1381		1424
1382	if (expect_true (!next->cctx))	1425	cctx_prev = cctx_current;
1383	next->cctx = cctx_get (aTHX);	1426	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1384		1427
1385	if (expect_false (prev__cctx != next->cctx))	1428	next->cctx = 0;
		1429
		1430	if (expect_false (cctx_prev != cctx_current))
1386	{	1431	{
1387	prev__cctx->top_env = PL_top_env;	1432	cctx_prev->top_env = PL_top_env;
1388	PL_top_env = next->cctx->top_env;	1433	PL_top_env = cctx_current->top_env;
1389	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1434	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1390	}	1435	}
1391		1436
1392	transfer_tail (aTHX);	1437	transfer_tail (aTHX);
1393	}	1438	}
1394	}	1439	}
…		…
1433		1478
1434	coro->slot = 0;	1479	coro->slot = 0;
1435	}	1480	}
1436		1481
1437	cctx_destroy (coro->cctx);	1482	cctx_destroy (coro->cctx);
		1483	SvREFCNT_dec (coro->startcv);
1438	SvREFCNT_dec (coro->args);	1484	SvREFCNT_dec (coro->args);
		1485	SvREFCNT_dec (CORO_THROW);
1439		1486
1440	if (coro->next) coro->next->prev = coro->prev;	1487	if (coro->next) coro->next->prev = coro->prev;
1441	if (coro->prev) coro->prev->next = coro->next;	1488	if (coro->prev) coro->prev->next = coro->next;
1442	if (coro == coro_first) coro_first = coro->next;	1489	if (coro == coro_first) coro_first = coro->next;
1443		1490
…		…
1497		1544
1498	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1545	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499	TRANSFER (ta, 1);	1546	TRANSFER (ta, 1);
1500	}	1547	}
1501		1548
		1549	/*****************************************************************************/
		1550	/* gensub: simple closure generation utility */
		1551
		1552	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1553
		1554	/* create a closure from XS, returns a code reference */
		1555	/* the arg can be accessed via GENSUB_ARG from the callback */
		1556	/* the callback must use dXSARGS/XSRETURN */
		1557	static SV *
		1558	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
		1559	{
		1560	CV *cv = (CV *)newSV (0);
		1561
		1562	sv_upgrade ((SV *)cv, SVt_PVCV);
		1563
		1564	CvANON_on (cv);
		1565	CvISXSUB_on (cv);
		1566	CvXSUB (cv) = xsub;
		1567	GENSUB_ARG = arg;
		1568
		1569	return newRV_noinc ((SV *)cv);
		1570	}
		1571
1502	/** Coro ********************************************************************/	1572	/** Coro ********************************************************************/
1503		1573
1504	INLINE void	1574	INLINE void
1505	coro_enq (pTHX_ struct coro *coro)	1575	coro_enq (pTHX_ struct coro *coro)
1506	{	1576	{
…		…
1524	{	1594	{
1525	struct coro *coro;	1595	struct coro *coro;
1526	SV *sv_hook;	1596	SV *sv_hook;
1527	void (*xs_hook)(void);	1597	void (*xs_hook)(void);
1528		1598
1529	if (SvROK (coro_sv))
1530	coro_sv = SvRV (coro_sv);
1531
1532	coro = SvSTATE (coro_sv);	1599	coro = SvSTATE (coro_sv);
1533		1600
1534	if (coro->flags & CF_READY)	1601	if (coro->flags & CF_READY)
1535	return 0;	1602	return 0;
1536		1603
…		…
1567	api_is_ready (pTHX_ SV *coro_sv)	1634	api_is_ready (pTHX_ SV *coro_sv)
1568	{	1635	{
1569	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1636	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1570	}	1637	}
1571		1638
		1639	/* expects to own a reference to next->hv */
1572	INLINE void	1640	INLINE void
1573	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1641	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1574	{	1642	{
1575	SV *prev_sv, *next_sv;
1576
1577	for (;;)
1578	{
1579	next_sv = coro_deq (aTHX);
1580
1581	/* nothing to schedule: call the idle handler */
1582	if (expect_false (!next_sv))
1583	{
1584	dSP;
1585
1586	ENTER;
1587	SAVETMPS;
1588
1589	PUSHMARK (SP);
1590	PUTBACK;
1591	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1592
1593	FREETMPS;
1594	LEAVE;
1595	continue;
1596	}
1597
1598	ta->next = SvSTATE_hv (next_sv);
1599
1600	/* cannot transfer to destroyed coros, skip and look for next */
1601	if (expect_false (ta->next->flags & CF_DESTROYED))
1602	{
1603	SvREFCNT_dec (next_sv);
1604	/* coro_nready has already been taken care of by destroy */
1605	continue;
1606	}
1607
1608	--coro_nready;
1609	break;
1610	}
1611
1612	/* free this only after the transfer */
1613	prev_sv = SvRV (coro_current);	1643	SV *prev_sv = SvRV (coro_current);
		1644
1614	ta->prev = SvSTATE_hv (prev_sv);	1645	ta->prev = SvSTATE_hv (prev_sv);
		1646	ta->next = next;
		1647
1615	TRANSFER_CHECK (*ta);	1648	TRANSFER_CHECK (*ta);
1616	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1649
1617	ta->next->flags &= ~CF_READY;
1618	SvRV_set (coro_current, next_sv);	1650	SvRV_set (coro_current, (SV *)next->hv);
1619		1651
1620	free_coro_mortal (aTHX);	1652	free_coro_mortal (aTHX);
1621	coro_mortal = prev_sv;	1653	coro_mortal = prev_sv;
1622	}	1654	}
1623		1655
		1656	static void
		1657	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1658	{
		1659	for (;;)
		1660	{
		1661	SV *next_sv = coro_deq (aTHX);
		1662
		1663	if (expect_true (next_sv))
		1664	{
		1665	struct coro *next = SvSTATE_hv (next_sv);
		1666
		1667	/* cannot transfer to destroyed coros, skip and look for next */
		1668	if (expect_false (next->flags & CF_DESTROYED))
		1669	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1670	else
		1671	{
		1672	next->flags &= ~CF_READY;
		1673	--coro_nready;
		1674
		1675	prepare_schedule_to (aTHX_ ta, next);
		1676	break;
		1677	}
		1678	}
		1679	else
		1680	{
		1681	/* nothing to schedule: call the idle handler */
		1682	if (SvROK (sv_idle)
		1683	&& SvOBJECT (SvRV (sv_idle)))
		1684	{
		1685	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1686	api_ready (aTHX_ SvRV (sv_idle));
		1687	--coro_nready;
		1688	}
		1689	else
		1690	{
		1691	dSP;
		1692
		1693	ENTER;
		1694	SAVETMPS;
		1695
		1696	PUSHMARK (SP);
		1697	PUTBACK;
		1698	call_sv (sv_idle, G_VOID | G_DISCARD);
		1699
		1700	FREETMPS;
		1701	LEAVE;
		1702	}
		1703	}
		1704	}
		1705	}
		1706
1624	INLINE void	1707	INLINE void
1625	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1708	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1626	{	1709	{
1627	api_ready (aTHX_ coro_current);	1710	api_ready (aTHX_ coro_current);
1628	prepare_schedule (aTHX_ ta);	1711	prepare_schedule (aTHX_ ta);
…		…
1647	{	1730	{
1648	struct coro_transfer_args ta;	1731	struct coro_transfer_args ta;
1649		1732
1650	prepare_schedule (aTHX_ &ta);	1733	prepare_schedule (aTHX_ &ta);
1651	TRANSFER (ta, 1);	1734	TRANSFER (ta, 1);
		1735	}
		1736
		1737	static void
		1738	api_schedule_to (pTHX_ SV *coro_sv)
		1739	{
		1740	struct coro_transfer_args ta;
		1741	struct coro *next = SvSTATE (coro_sv);
		1742
		1743	SvREFCNT_inc_NN (coro_sv);
		1744	prepare_schedule_to (aTHX_ &ta, next);
1652	}	1745	}
1653		1746
1654	static int	1747	static int
1655	api_cede (pTHX)	1748	api_cede (pTHX)
1656	{	1749	{
…		…
1685	static void	1778	static void
1686	api_trace (pTHX_ SV *coro_sv, int flags)	1779	api_trace (pTHX_ SV *coro_sv, int flags)
1687	{	1780	{
1688	struct coro *coro = SvSTATE (coro_sv);	1781	struct coro *coro = SvSTATE (coro_sv);
1689		1782
		1783	if (coro->flags & CF_RUNNING)
		1784	croak ("cannot enable tracing on a running coroutine, caught");
		1785
1690	if (flags & CC_TRACE)	1786	if (flags & CC_TRACE)
1691	{	1787	{
1692	if (!coro->cctx)	1788	if (!coro->cctx)
1693	coro->cctx = cctx_new_run ();	1789	coro->cctx = cctx_new_run ();
1694	else if (!(coro->cctx->flags & CC_TRACE))	1790	else if (!(coro->cctx->flags & CC_TRACE))
1695	croak ("cannot enable tracing on coroutine with custom stack,");	1791	croak ("cannot enable tracing on coroutine with custom stack, caught");
1696		1792
1697	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1793	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1698	}	1794	}
1699	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1795	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1700	{	1796	{
…		…
1703	if (coro->flags & CF_RUNNING)	1799	if (coro->flags & CF_RUNNING)
1704	PL_runops = RUNOPS_DEFAULT;	1800	PL_runops = RUNOPS_DEFAULT;
1705	else	1801	else
1706	coro->slot->runops = RUNOPS_DEFAULT;	1802	coro->slot->runops = RUNOPS_DEFAULT;
1707	}	1803	}
		1804	}
		1805
		1806	static void
		1807	coro_call_on_destroy (pTHX_ struct coro *coro)
		1808	{
		1809	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1810	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1811
		1812	if (on_destroyp)
		1813	{
		1814	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1815
		1816	while (AvFILLp (on_destroy) >= 0)
		1817	{
		1818	dSP; /* don't disturb outer sp */
		1819	SV *cb = av_pop (on_destroy);
		1820
		1821	PUSHMARK (SP);
		1822
		1823	if (statusp)
		1824	{
		1825	int i;
		1826	AV *status = (AV *)SvRV (*statusp);
		1827	EXTEND (SP, AvFILLp (status) + 1);
		1828
		1829	for (i = 0; i <= AvFILLp (status); ++i)
		1830	PUSHs (AvARRAY (status)[i]);
		1831	}
		1832
		1833	PUTBACK;
		1834	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1835	}
		1836	}
		1837	}
		1838
		1839	static void
		1840	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1841	{
		1842	int i;
		1843	HV *hv = (HV *)SvRV (coro_current);
		1844	AV *av = newAV ();
		1845
		1846	av_extend (av, items - 1);
		1847	for (i = 0; i < items; ++i)
		1848	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1849
		1850	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1851
		1852	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1853	api_ready (aTHX_ sv_manager);
		1854
		1855	frame->prepare = prepare_schedule;
		1856	frame->check = slf_check_repeat;
		1857	}
		1858
		1859	/*****************************************************************************/
		1860	/* async pool handler */
		1861
		1862	static int
		1863	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1864	{
		1865	HV *hv = (HV *)SvRV (coro_current);
		1866	struct coro *coro = (struct coro *)frame->data;
		1867
		1868	if (!coro->invoke_cb)
		1869	return 1; /* loop till we have invoke */
		1870	else
		1871	{
		1872	hv_store (hv, "desc", sizeof ("desc") - 1,
		1873	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1874
		1875	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1876
		1877	{
		1878	dSP;
		1879	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1880	PUTBACK;
		1881	}
		1882
		1883	SvREFCNT_dec (GvAV (PL_defgv));
		1884	GvAV (PL_defgv) = coro->invoke_av;
		1885	coro->invoke_av = 0;
		1886
		1887	return 0;
		1888	}
		1889	}
		1890
		1891	static void
		1892	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1893	{
		1894	HV *hv = (HV *)SvRV (coro_current);
		1895	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1896
		1897	if (expect_true (coro->saved_deffh))
		1898	{
		1899	/* subsequent iteration */
		1900	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1901	coro->saved_deffh = 0;
		1902
		1903	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1904	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1905	{
		1906	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1907	coro->invoke_av = newAV ();
		1908
		1909	frame->prepare = prepare_nop;
		1910	}
		1911	else
		1912	{
		1913	av_clear (GvAV (PL_defgv));
		1914	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1915
		1916	coro->prio = 0;
		1917
		1918	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1919	api_trace (aTHX_ coro_current, 0);
		1920
		1921	frame->prepare = prepare_schedule;
		1922	av_push (av_async_pool, SvREFCNT_inc (hv));
		1923	}
		1924	}
		1925	else
		1926	{
		1927	/* first iteration, simply fall through */
		1928	frame->prepare = prepare_nop;
		1929	}
		1930
		1931	frame->check = slf_check_pool_handler;
		1932	frame->data = (void *)coro;
		1933	}
		1934
		1935	/*****************************************************************************/
		1936	/* rouse callback */
		1937
		1938	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1939
		1940	static void
		1941	coro_rouse_callback (pTHX_ CV *cv)
		1942	{
		1943	dXSARGS;
		1944	SV *data = (SV *)GENSUB_ARG;
		1945
		1946	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1947	{
		1948	/* first call, set args */
		1949	AV *av = newAV ();
		1950	SV *coro = SvRV (data);
		1951
		1952	SvRV_set (data, (SV *)av);
		1953	api_ready (aTHX_ coro);
		1954	SvREFCNT_dec (coro);
		1955
		1956	/* better take a full copy of the arguments */
		1957	while (items--)
		1958	av_store (av, items, newSVsv (ST (items)));
		1959	}
		1960
		1961	XSRETURN_EMPTY;
		1962	}
		1963
		1964	static int
		1965	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1966	{
		1967	SV *data = (SV *)frame->data;
		1968
		1969	if (CORO_THROW)
		1970	return 0;
		1971
		1972	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1973	return 1;
		1974
		1975	/* now push all results on the stack */
		1976	{
		1977	dSP;
		1978	AV *av = (AV *)SvRV (data);
		1979	int i;
		1980
		1981	EXTEND (SP, AvFILLp (av) + 1);
		1982	for (i = 0; i <= AvFILLp (av); ++i)
		1983	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1984
		1985	/* we have stolen the elements, so ste length to zero and free */
		1986	AvFILLp (av) = -1;
		1987	av_undef (av);
		1988
		1989	PUTBACK;
		1990	}
		1991
		1992	return 0;
		1993	}
		1994
		1995	static void
		1996	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1997	{
		1998	SV *cb;
		1999
		2000	if (items)
		2001	cb = arg [0];
		2002	else
		2003	{
		2004	struct coro *coro = SvSTATE_current;
		2005
		2006	if (!coro->rouse_cb)
		2007	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		2008
		2009	cb = sv_2mortal (coro->rouse_cb);
		2010	coro->rouse_cb = 0;
		2011	}
		2012
		2013	if (!SvROK (cb)
		2014	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		2015	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		2016	croak ("Coro::rouse_wait called with illegal callback argument,");
		2017
		2018	{
		2019	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		2020	SV *data = (SV *)GENSUB_ARG;
		2021
		2022	frame->data = (void *)data;
		2023	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2024	frame->check = slf_check_rouse_wait;
		2025	}
		2026	}
		2027
		2028	static SV *
		2029	coro_new_rouse_cb (pTHX)
		2030	{
		2031	HV *hv = (HV *)SvRV (coro_current);
		2032	struct coro *coro = SvSTATE_hv (hv);
		2033	SV *data = newRV_inc ((SV *)hv);
		2034	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		2035
		2036	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2037	SvREFCNT_dec (data); /* magicext increases the refcount */
		2038
		2039	SvREFCNT_dec (coro->rouse_cb);
		2040	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2041
		2042	return cb;
1708	}	2043	}
1709		2044
1710	/*****************************************************************************/	2045	/*****************************************************************************/
1711	/* schedule-like-function opcode (SLF) */	2046	/* schedule-like-function opcode (SLF) */
1712		2047
…		…
1759	static void	2094	static void
1760	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2095	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1761	{	2096	{
1762	frame->prepare = prepare_schedule;	2097	frame->prepare = prepare_schedule;
1763	frame->check = slf_check_nop;	2098	frame->check = slf_check_nop;
		2099	}
		2100
		2101	static void
		2102	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2103	{
		2104	struct coro *next = (struct coro *)slf_frame.data;
		2105
		2106	SvREFCNT_inc_NN (next->hv);
		2107	prepare_schedule_to (aTHX_ ta, next);
		2108	}
		2109
		2110	static void
		2111	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2112	{
		2113	if (!items)
		2114	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2115
		2116	frame->data = (void *)SvSTATE (arg [0]);
		2117	frame->prepare = slf_prepare_schedule_to;
		2118	frame->check = slf_check_nop;
		2119	}
		2120
		2121	static void
		2122	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2123	{
		2124	api_ready (aTHX_ SvRV (coro_current));
		2125
		2126	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1764	}	2127	}
1765		2128
1766	static void	2129	static void
1767	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2130	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1768	{	2131	{
…		…
1839	}	2202	}
1840	while (slf_frame.check (aTHX_ &slf_frame));	2203	while (slf_frame.check (aTHX_ &slf_frame));
1841		2204
1842	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2205	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843		2206
		2207	/* exception handling */
		2208	if (expect_false (CORO_THROW))
		2209	{
		2210	SV *exception = sv_2mortal (CORO_THROW);
		2211
		2212	CORO_THROW = 0;
		2213	sv_setsv (ERRSV, exception);
		2214	croak (0);
		2215	}
		2216
1844	/* return value handling - mostly like entersub */	2217	/* return value handling - mostly like entersub */
1845	/* make sure we put something on the stack in scalar context */	2218	/* make sure we put something on the stack in scalar context */
1846	if (GIMME_V == G_SCALAR)	2219	if (GIMME_V == G_SCALAR)
1847	{	2220	{
1848	dSP;	2221	dSP;
…		…
1854	bot [1] = *sp;	2227	bot [1] = *sp;
1855		2228
1856	SP = bot + 1;	2229	SP = bot + 1;
1857		2230
1858	PUTBACK;	2231	PUTBACK;
1859	}
1860
1861	/* exception handling */
1862	if (expect_false (coro_throw))
1863	{
1864	SV *exception = sv_2mortal (coro_throw);
1865
1866	coro_throw = 0;
1867	sv_setsv (ERRSV, exception);
1868	croak (0);
1869	}	2232	}
1870		2233
1871	return NORMAL;	2234	return NORMAL;
1872	}	2235	}
1873		2236
…		…
1914	}	2277	}
1915	else	2278	else
1916	slf_argc = 0;	2279	slf_argc = 0;
1917		2280
1918	PL_op->op_ppaddr = pp_slf;	2281	PL_op->op_ppaddr = pp_slf;
1919	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2282	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1920		2283
1921	PL_op = (OP *)&slf_restore;	2284	PL_op = (OP *)&slf_restore;
1922	}	2285	}
1923		2286
1924	/*****************************************************************************/	2287	/*****************************************************************************/
…		…
1995	PerlIOBuf_get_cnt,	2358	PerlIOBuf_get_cnt,
1996	PerlIOBuf_set_ptrcnt,	2359	PerlIOBuf_set_ptrcnt,
1997	};	2360	};
1998		2361
1999	/*****************************************************************************/	2362	/*****************************************************************************/
		2363	/* Coro::Semaphore & Coro::Signal */
		2364
		2365	static SV *
		2366	coro_waitarray_new (pTHX_ int count)
		2367	{
		2368	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2369	AV *av = newAV ();
		2370	SV **ary;
		2371
		2372	/* unfortunately, building manually saves memory */
		2373	Newx (ary, 2, SV *);
		2374	AvALLOC (av) = ary;
		2375	/*AvARRAY (av) = ary;*/
		2376	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2377	AvMAX (av) = 1;
		2378	AvFILLp (av) = 0;
		2379	ary [0] = newSViv (count);
		2380
		2381	return newRV_noinc ((SV *)av);
		2382	}
		2383
2000	/* Coro::Semaphore */	2384	/* semaphore */
2001		2385
2002	static void	2386	static void
2003	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2387	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2004	{	2388	{
2005	SV *count_sv = AvARRAY (av)[0];	2389	SV *count_sv = AvARRAY (av)[0];
…		…
2017	AvARRAY (av)[0] = AvARRAY (av)[1];	2401	AvARRAY (av)[0] = AvARRAY (av)[1];
2018	AvARRAY (av)[1] = count_sv;	2402	AvARRAY (av)[1] = count_sv;
2019	cb = av_shift (av);	2403	cb = av_shift (av);
2020		2404
2021	if (SvOBJECT (cb))	2405	if (SvOBJECT (cb))
		2406	{
2022	api_ready (aTHX_ cb);	2407	api_ready (aTHX_ cb);
2023	else	2408	--count;
2024	croak ("callbacks not yet supported");	2409	}
		2410	else if (SvTYPE (cb) == SVt_PVCV)
		2411	{
		2412	dSP;
		2413	PUSHMARK (SP);
		2414	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2415	PUTBACK;
		2416	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2417	}
2025		2418
2026	SvREFCNT_dec (cb);	2419	SvREFCNT_dec (cb);
2027
2028	--count;
2029	}	2420	}
2030	}	2421	}
2031		2422
2032	static void	2423	static void
2033	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2424	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2035	/* call $sem->adjust (0) to possibly wake up some other waiters */	2426	/* call $sem->adjust (0) to possibly wake up some other waiters */
2036	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2427	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2037	}	2428	}
2038		2429
2039	static int	2430	static int
2040	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2431	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2041	{	2432	{
2042	AV *av = (AV *)frame->data;	2433	AV *av = (AV *)frame->data;
2043	SV *count_sv = AvARRAY (av)[0];	2434	SV *count_sv = AvARRAY (av)[0];
2044		2435
2045	/* if we are about to throw, don't actually acquire the lock, just throw */	2436	/* if we are about to throw, don't actually acquire the lock, just throw */
2046	if (coro_throw && 0)//D	2437	if (CORO_THROW)
2047	return 0;	2438	return 0;
2048	else if (SvIVX (count_sv) > 0)	2439	else if (SvIVX (count_sv) > 0)
2049	{	2440	{
2050	SvSTATE_current->on_destroy = 0;	2441	SvSTATE_current->on_destroy = 0;
		2442
		2443	if (acquire)
2051	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2444	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2445	else
		2446	coro_semaphore_adjust (aTHX_ av, 0);
		2447
2052	return 0;	2448	return 0;
2053	}	2449	}
2054	else	2450	else
2055	{	2451	{
2056	int i;	2452	int i;
…		…
2065	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2461	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2066	return 1;	2462	return 1;
2067	}	2463	}
2068	}	2464	}
2069		2465
2070	static void	2466	static int
		2467	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2468	{
		2469	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2470	}
		2471
		2472	static int
		2473	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2474	{
		2475	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2476	}
		2477
		2478	static void
2071	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2479	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2072	{	2480	{
2073	AV *av = (AV *)SvRV (arg [0]);	2481	AV *av = (AV *)SvRV (arg [0]);
2074		2482
2075	if (SvIVX (AvARRAY (av)[0]) > 0)	2483	if (SvIVX (AvARRAY (av)[0]) > 0)
2076	{	2484	{
…		…
2086		2494
2087	/* to avoid race conditions when a woken-up coro gets terminated */	2495	/* to avoid race conditions when a woken-up coro gets terminated */
2088	/* we arrange for a temporary on_destroy that calls adjust (0) */	2496	/* we arrange for a temporary on_destroy that calls adjust (0) */
2089	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2497	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090	}	2498	}
		2499	}
2091		2500
		2501	static void
		2502	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2503	{
		2504	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092	frame->check = slf_check_semaphore_down;	2505	frame->check = slf_check_semaphore_down;
2093
2094	}	2506	}
2095		2507
2096	/*****************************************************************************/	2508	static void
2097	/* gensub: simple closure generation utility */	2509	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	{	2510	{
2107	CV *cv = (CV *)newSV (0);	2511	if (items >= 2)
		2512	{
		2513	/* callback form */
		2514	AV *av = (AV *)SvRV (arg [0]);
		2515	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108		2516
2109	sv_upgrade ((SV *)cv, SVt_PVCV);	2517	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110		2518
2111	CvANON_on (cv);	2519	if (SvIVX (AvARRAY (av)[0]) > 0)
2112	CvISXSUB_on (cv);	2520	coro_semaphore_adjust (aTHX_ av, 0);
2113	CvXSUB (cv) = xsub;
2114	GENSUB_ARG = arg;
2115		2521
2116	return newRV_noinc ((SV *)cv);	2522	frame->prepare = prepare_nop;
		2523	frame->check = slf_check_nop;
		2524	}
		2525	else
		2526	{
		2527	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2528	frame->check = slf_check_semaphore_wait;
		2529	}
		2530	}
		2531
		2532	/* signal */
		2533
		2534	static void
		2535	coro_signal_wake (pTHX_ AV *av, int count)
		2536	{
		2537	SvIVX (AvARRAY (av)[0]) = 0;
		2538
		2539	/* now signal count waiters */
		2540	while (count > 0 && AvFILLp (av) > 0)
		2541	{
		2542	SV *cb;
		2543
		2544	/* swap first two elements so we can shift a waiter */
		2545	cb = AvARRAY (av)[0];
		2546	AvARRAY (av)[0] = AvARRAY (av)[1];
		2547	AvARRAY (av)[1] = cb;
		2548
		2549	cb = av_shift (av);
		2550
		2551	api_ready (aTHX_ cb);
		2552	sv_setiv (cb, 0); /* signal waiter */
		2553	SvREFCNT_dec (cb);
		2554
		2555	--count;
		2556	}
		2557	}
		2558
		2559	static int
		2560	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2561	{
		2562	/* if we are about to throw, also stop waiting */
		2563	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2564	}
		2565
		2566	static void
		2567	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2568	{
		2569	AV *av = (AV *)SvRV (arg [0]);
		2570
		2571	if (SvIVX (AvARRAY (av)[0]))
		2572	{
		2573	SvIVX (AvARRAY (av)[0]) = 0;
		2574	frame->prepare = prepare_nop;
		2575	frame->check = slf_check_nop;
		2576	}
		2577	else
		2578	{
		2579	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2580
		2581	av_push (av, waiter);
		2582
		2583	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2584	frame->prepare = prepare_schedule;
		2585	frame->check = slf_check_signal_wait;
		2586	}
2117	}	2587	}
2118		2588
2119	/*****************************************************************************/	2589	/*****************************************************************************/
2120	/* Coro::AIO */	2590	/* Coro::AIO */
2121		2591
…		…
2136	dXSARGS;	2606	dXSARGS;
2137	AV *state = (AV *)GENSUB_ARG;	2607	AV *state = (AV *)GENSUB_ARG;
2138	SV *coro = av_pop (state);	2608	SV *coro = av_pop (state);
2139	SV *data_sv = newSV (sizeof (struct io_state));	2609	SV *data_sv = newSV (sizeof (struct io_state));
2140		2610
2141	av_extend (state, items);	2611	av_extend (state, items - 1);
2142		2612
2143	sv_upgrade (data_sv, SVt_PV);	2613	sv_upgrade (data_sv, SVt_PV);
2144	SvCUR_set (data_sv, sizeof (struct io_state));	2614	SvCUR_set (data_sv, sizeof (struct io_state));
2145	SvPOK_only (data_sv);	2615	SvPOK_only (data_sv);
2146		2616
…		…
2171	static int	2641	static int
2172	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2642	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173	{	2643	{
2174	AV *state = (AV *)frame->data;	2644	AV *state = (AV *)frame->data;
2175		2645
		2646	/* if we are about to throw, return early */
		2647	/* this does not cancel the aio request, but at least */
		2648	/* it quickly returns */
		2649	if (CORO_THROW)
		2650	return 0;
		2651
2176	/* one element that is an RV? repeat! */	2652	/* one element that is an RV? repeat! */
2177	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2653	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2178	return 1;	2654	return 1;
2179		2655
2180	/* restore status */	2656	/* restore status */
…		…
2275	XSRETURN_EMPTY;	2751	XSRETURN_EMPTY;
2276	}	2752	}
2277		2753
2278	/*****************************************************************************/	2754	/*****************************************************************************/
2279		2755
		2756	#if CORO_CLONE
		2757	# include "clone.c"
		2758	#endif
		2759
2280	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2760	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2281		2761
2282	PROTOTYPES: DISABLE	2762	PROTOTYPES: DISABLE
2283		2763
2284	BOOT:	2764	BOOT:
…		…
2288	coro_thx = PERL_GET_CONTEXT;	2768	coro_thx = PERL_GET_CONTEXT;
2289	# endif	2769	# endif
2290	#endif	2770	#endif
2291	BOOT_PAGESIZE;	2771	BOOT_PAGESIZE;
2292		2772
		2773	cctx_current = cctx_new_empty ();
		2774
2293	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2775	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2294	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2776	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2295		2777
2296	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2778	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2297	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2779	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2316		2798
2317	{	2799	{
2318	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2800	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2319		2801
2320	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2802	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2321	hv_store_ent (PL_custom_op_names, slf,	2803	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2322	newSVpv ("coro_slf", 0), 0);
2323		2804
2324	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2805	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2325	hv_store_ent (PL_custom_op_descs, slf,	2806	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2326	newSVpv ("coro schedule like function", 0), 0);
2327	}	2807	}
2328		2808
2329	coroapi.ver = CORO_API_VERSION;	2809	coroapi.ver = CORO_API_VERSION;
2330	coroapi.rev = CORO_API_REVISION;	2810	coroapi.rev = CORO_API_REVISION;
2331		2811
…		…
2350	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2830	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2351	}	2831	}
2352		2832
2353	SV *	2833	SV *
2354	new (char *klass, ...)	2834	new (char *klass, ...)
		2835	ALIAS:
		2836	Coro::new = 1
2355	CODE:	2837	CODE:
2356	{	2838	{
2357	struct coro *coro;	2839	struct coro *coro;
2358	MAGIC *mg;	2840	MAGIC *mg;
2359	HV *hv;	2841	HV *hv;
		2842	CV *cb;
2360	int i;	2843	int i;
		2844
		2845	if (items > 1)
		2846	{
		2847	cb = coro_sv_2cv (aTHX_ ST (1));
		2848
		2849	if (!ix)
		2850	{
		2851	if (CvISXSUB (cb))
		2852	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2853
		2854	if (!CvROOT (cb))
		2855	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2856	}
		2857	}
2361		2858
2362	Newz (0, coro, 1, struct coro);	2859	Newz (0, coro, 1, struct coro);
2363	coro->args = newAV ();	2860	coro->args = newAV ();
2364	coro->flags = CF_NEW;	2861	coro->flags = CF_NEW;
2365		2862
…		…
2370	coro->hv = hv = newHV ();	2867	coro->hv = hv = newHV ();
2371	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2868	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2372	mg->mg_flags |= MGf_DUP;	2869	mg->mg_flags |= MGf_DUP;
2373	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2870	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374		2871
		2872	if (items > 1)
		2873	{
2375	av_extend (coro->args, items - 1);	2874	av_extend (coro->args, items - 1 + ix - 1);
		2875
		2876	if (ix)
		2877	{
		2878	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2879	cb = cv_coro_run;
		2880	}
		2881
		2882	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2883
2376	for (i = 1; i < items; i++)	2884	for (i = 2; i < items; i++)
2377	av_push (coro->args, newSVsv (ST (i)));	2885	av_push (coro->args, newSVsv (ST (i)));
		2886	}
2378	}	2887	}
2379	OUTPUT:	2888	OUTPUT:
2380	RETVAL	2889	RETVAL
2381		2890
2382	void	2891	void
…		…
2395	void	2904	void
2396	_exit (int code)	2905	_exit (int code)
2397	PROTOTYPE: $	2906	PROTOTYPE: $
2398	CODE:	2907	CODE:
2399	_exit (code);	2908	_exit (code);
		2909
		2910	SV *
		2911	clone (Coro::State coro)
		2912	CODE:
		2913	{
		2914	#if CORO_CLONE
		2915	struct coro *ncoro = coro_clone (coro);
		2916	MAGIC *mg;
		2917	/* TODO: too much duplication */
		2918	ncoro->hv = newHV ();
		2919	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2920	mg->mg_flags |= MGf_DUP;
		2921	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2922	#else
		2923	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2924	#endif
		2925	}
		2926	OUTPUT:
		2927	RETVAL
2400		2928
2401	int	2929	int
2402	cctx_stacksize (int new_stacksize = 0)	2930	cctx_stacksize (int new_stacksize = 0)
2403	PROTOTYPE: ;$	2931	PROTOTYPE: ;$
2404	CODE:	2932	CODE:
…		…
2511	throw (Coro::State self, SV *throw = &PL_sv_undef)	3039	throw (Coro::State self, SV *throw = &PL_sv_undef)
2512	PROTOTYPE: $;$	3040	PROTOTYPE: $;$
2513	CODE:	3041	CODE:
2514	{	3042	{
2515	struct coro *current = SvSTATE_current;	3043	struct coro *current = SvSTATE_current;
2516	SV **throwp = self == current ? &coro_throw : &self->throw;	3044	SV **throwp = self == current ? &CORO_THROW : &self->except;
2517	SvREFCNT_dec (*throwp);	3045	SvREFCNT_dec (*throwp);
2518	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3046	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2519	}	3047	}
2520		3048
2521	void	3049	void
…		…
2525		3053
2526	SV *	3054	SV *
2527	has_cctx (Coro::State coro)	3055	has_cctx (Coro::State coro)
2528	PROTOTYPE: $	3056	PROTOTYPE: $
2529	CODE:	3057	CODE:
2530	RETVAL = boolSV (!!coro->cctx);	3058	/* maybe manage the running flag differently */
		3059	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2531	OUTPUT:	3060	OUTPUT:
2532	RETVAL	3061	RETVAL
2533		3062
2534	int	3063	int
2535	is_traced (Coro::State coro)	3064	is_traced (Coro::State coro)
…		…
2555		3084
2556	void	3085	void
2557	force_cctx ()	3086	force_cctx ()
2558	PROTOTYPE:	3087	PROTOTYPE:
2559	CODE:	3088	CODE:
2560	SvSTATE_current->cctx->idle_sp = 0;	3089	cctx_current->idle_sp = 0;
2561		3090
2562	void	3091	void
2563	swap_defsv (Coro::State self)	3092	swap_defsv (Coro::State self)
2564	PROTOTYPE: $	3093	PROTOTYPE: $
2565	ALIAS:	3094	ALIAS:
…		…
2580		3109
2581	BOOT:	3110	BOOT:
2582	{	3111	{
2583	int i;	3112	int i;
2584		3113
2585	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2586	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3114	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2587	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3115	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2588		3116	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3117	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2589	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3118	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2590	SvREADONLY_on (coro_current);	3119	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3120	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3121	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3122	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3123
		3124	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3125	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3126	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3127	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2591		3128
2592	coro_stash = gv_stashpv ("Coro", TRUE);	3129	coro_stash = gv_stashpv ("Coro", TRUE);
2593		3130
2594	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3131	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2595	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3132	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2603		3140
2604	{	3141	{
2605	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3142	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2606		3143
2607	coroapi.schedule = api_schedule;	3144	coroapi.schedule = api_schedule;
		3145	coroapi.schedule_to = api_schedule_to;
2608	coroapi.cede = api_cede;	3146	coroapi.cede = api_cede;
2609	coroapi.cede_notself = api_cede_notself;	3147	coroapi.cede_notself = api_cede_notself;
2610	coroapi.ready = api_ready;	3148	coroapi.ready = api_ready;
2611	coroapi.is_ready = api_is_ready;	3149	coroapi.is_ready = api_is_ready;
2612	coroapi.nready = coro_nready;	3150	coroapi.nready = coro_nready;
2613	coroapi.current = coro_current;	3151	coroapi.current = coro_current;
2614		3152
2615	GCoroAPI = &coroapi;	3153	/*GCoroAPI = &coroapi;*/
2616	sv_setiv (sv, (IV)&coroapi);	3154	sv_setiv (sv, (IV)&coroapi);
2617	SvREADONLY_on (sv);	3155	SvREADONLY_on (sv);
2618	}	3156	}
2619	}	3157	}
		3158
		3159	void
		3160	terminate (...)
		3161	CODE:
		3162	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2620		3163
2621	void	3164	void
2622	schedule (...)	3165	schedule (...)
2623	CODE:	3166	CODE:
2624	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3167	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2625		3168
2626	void	3169	void
		3170	schedule_to (...)
		3171	CODE:
		3172	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3173
		3174	void
		3175	cede_to (...)
		3176	CODE:
		3177	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3178
		3179	void
2627	cede (...)	3180	cede (...)
2628	CODE:	3181	CODE:
2629	CORO_EXECUTE_SLF_XS (slf_init_cede);	3182	CORO_EXECUTE_SLF_XS (slf_init_cede);
2630		3183
2631	void	3184	void
2632	cede_notself (...)	3185	cede_notself (...)
2633	CODE:	3186	CODE:
2634	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3187	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3188
		3189	void
		3190	_cancel (Coro::State self)
		3191	CODE:
		3192	coro_state_destroy (aTHX_ self);
		3193	coro_call_on_destroy (aTHX_ self);
2635		3194
2636	void	3195	void
2637	_set_current (SV *current)	3196	_set_current (SV *current)
2638	PROTOTYPE: $	3197	PROTOTYPE: $
2639	CODE:	3198	CODE:
…		…
2684	CODE:	3243	CODE:
2685	RETVAL = coro_nready;	3244	RETVAL = coro_nready;
2686	OUTPUT:	3245	OUTPUT:
2687	RETVAL	3246	RETVAL
2688		3247
2689	# for async_pool speedup
2690	void	3248	void
2691	_pool_1 (SV *cb)	3249	_pool_handler (...)
2692	CODE:	3250	CODE:
2693	{	3251	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2694	HV *hv = (HV *)SvRV (coro_current);
2695	struct coro *coro = SvSTATE_hv ((SV *)hv);
2696	AV *defav = GvAV (PL_defgv);
2697	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2698	AV *invoke_av;
2699	int i, len;
2700		3252
2701	if (!invoke)	3253	void
		3254	async_pool (SV *cv, ...)
		3255	PROTOTYPE: &@
		3256	PPCODE:
		3257	{
		3258	HV *hv = (HV *)av_pop (av_async_pool);
		3259	AV *av = newAV ();
		3260	SV *cb = ST (0);
		3261	int i;
		3262
		3263	av_extend (av, items - 2);
		3264	for (i = 1; i < items; ++i)
		3265	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3266
		3267	if ((SV *)hv == &PL_sv_undef)
2702	{	3268	{
2703	SV *old = PL_diehook;	3269	PUSHMARK (SP);
2704	PL_diehook = 0;	3270	EXTEND (SP, 2);
2705	SvREFCNT_dec (old);	3271	PUSHs (sv_Coro);
2706	croak ("\3async_pool terminate\2\n");	3272	PUSHs ((SV *)cv_pool_handler);
		3273	PUTBACK;
		3274	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3275	SPAGAIN;
		3276
		3277	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2707	}	3278	}
2708		3279
2709	SvREFCNT_dec (coro->saved_deffh);
2710	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2711
2712	hv_store (hv, "desc", sizeof ("desc") - 1,
2713	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2714
2715	invoke_av = (AV *)SvRV (invoke);
2716	len = av_len (invoke_av);
2717
2718	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2719
2720	if (len > 0)
2721	{	3280	{
2722	av_fill (defav, len - 1);	3281	struct coro *coro = SvSTATE_hv (hv);
2723	for (i = 0; i < len; ++i)	3282
2724	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3283	assert (!coro->invoke_cb);
		3284	assert (!coro->invoke_av);
		3285	coro->invoke_cb = SvREFCNT_inc (cb);
		3286	coro->invoke_av = av;
2725	}	3287	}
		3288
		3289	api_ready (aTHX_ (SV *)hv);
		3290
		3291	if (GIMME_V != G_VOID)
		3292	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3293	else
		3294	SvREFCNT_dec (hv);
2726	}	3295	}
		3296
		3297	SV *
		3298	rouse_cb ()
		3299	PROTOTYPE:
		3300	CODE:
		3301	RETVAL = coro_new_rouse_cb (aTHX);
		3302	OUTPUT:
		3303	RETVAL
2727		3304
2728	void	3305	void
2729	_pool_2 (SV *cb)	3306	rouse_wait (...)
		3307	PROTOTYPE: ;$
2730	CODE:	3308	PPCODE:
2731	{	3309	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2732	HV *hv = (HV *)SvRV (coro_current);
2733	struct coro *coro = SvSTATE_hv ((SV *)hv);
2734
2735	sv_setsv (cb, &PL_sv_undef);
2736
2737	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2738	coro->saved_deffh = 0;
2739
2740	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2741	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2742	{
2743	SV *old = PL_diehook;
2744	PL_diehook = 0;
2745	SvREFCNT_dec (old);
2746	croak ("\3async_pool terminate\2\n");
2747	}
2748
2749	av_clear (GvAV (PL_defgv));
2750	hv_store (hv, "desc", sizeof ("desc") - 1,
2751	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2752
2753	coro->prio = 0;
2754
2755	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2756	api_trace (aTHX_ coro_current, 0);
2757
2758	av_push (av_async_pool, newSVsv (coro_current));
2759	}
2760		3310
2761		3311
2762	MODULE = Coro::State PACKAGE = PerlIO::cede	3312	MODULE = Coro::State PACKAGE = PerlIO::cede
2763		3313
2764	BOOT:	3314	BOOT:
…		…
2766		3316
2767		3317
2768	MODULE = Coro::State PACKAGE = Coro::Semaphore	3318	MODULE = Coro::State PACKAGE = Coro::Semaphore
2769		3319
2770	SV *	3320	SV *
2771	new (SV *klass, SV *count_ = 0)	3321	new (SV *klass, SV *count = 0)
2772	CODE:	3322	CODE:
2773	{	3323	RETVAL = sv_bless (
2774	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3324	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2775	AV *av = newAV ();	3325	GvSTASH (CvGV (cv))
2776	SV **ary;	3326	);
		3327	OUTPUT:
		3328	RETVAL
2777		3329
2778	/* unfortunately, building manually saves memory */	3330	# helper for Coro::Channel
2779	Newx (ary, 2, SV *);	3331	SV *
2780	AvALLOC (av) = ary;	3332	_alloc (int count)
2781	AvARRAY (av) = ary;	3333	CODE:
2782	AvMAX (av) = 1;	3334	RETVAL = coro_waitarray_new (aTHX_ count);
2783	AvFILLp (av) = 0;
2784	ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2785
2786	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2787	}
2788	OUTPUT:	3335	OUTPUT:
2789	RETVAL	3336	RETVAL
2790		3337
2791	SV *	3338	SV *
2792	count (SV *self)	3339	count (SV *self)
…		…
2801	adjust = 1	3348	adjust = 1
2802	CODE:	3349	CODE:
2803	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3350	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2804		3351
2805	void	3352	void
2806	down (SV *self)	3353	down (...)
2807	CODE:	3354	CODE:
2808	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3355	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3356
		3357	void
		3358	wait (...)
		3359	CODE:
		3360	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2809		3361
2810	void	3362	void
2811	try (SV *self)	3363	try (SV *self)
2812	PPCODE:	3364	PPCODE:
2813	{	3365	{
…		…
2825	XSRETURN_NO;	3377	XSRETURN_NO;
2826	}	3378	}
2827		3379
2828	void	3380	void
2829	waiters (SV *self)	3381	waiters (SV *self)
2830	CODE:	3382	PPCODE:
2831	{	3383	{
2832	AV *av = (AV *)SvRV (self);	3384	AV *av = (AV *)SvRV (self);
		3385	int wcount = AvFILLp (av) + 1 - 1;
2833		3386
2834	if (GIMME_V == G_SCALAR)	3387	if (GIMME_V == G_SCALAR)
2835	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3388	XPUSHs (sv_2mortal (newSViv (wcount)));
2836	else	3389	else
2837	{	3390	{
2838	int i;	3391	int i;
2839	EXTEND (SP, AvFILLp (av) + 1 - 1);	3392	EXTEND (SP, wcount);
2840	for (i = 1; i <= AvFILLp (av); ++i)	3393	for (i = 1; i <= wcount; ++i)
2841	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3394	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2842	}	3395	}
2843	}	3396	}
		3397
		3398	MODULE = Coro::State PACKAGE = Coro::Signal
		3399
		3400	SV *
		3401	new (SV *klass)
		3402	CODE:
		3403	RETVAL = sv_bless (
		3404	coro_waitarray_new (aTHX_ 0),
		3405	GvSTASH (CvGV (cv))
		3406	);
		3407	OUTPUT:
		3408	RETVAL
		3409
		3410	void
		3411	wait (...)
		3412	CODE:
		3413	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3414
		3415	void
		3416	broadcast (SV *self)
		3417	CODE:
		3418	{
		3419	AV *av = (AV *)SvRV (self);
		3420	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3421	}
		3422
		3423	void
		3424	send (SV *self)
		3425	CODE:
		3426	{
		3427	AV *av = (AV *)SvRV (self);
		3428
		3429	if (AvFILLp (av))
		3430	coro_signal_wake (aTHX_ av, 1);
		3431	else
		3432	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3433	}
		3434
		3435	IV
		3436	awaited (SV *self)
		3437	CODE:
		3438	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3439	OUTPUT:
		3440	RETVAL
2844		3441
2845		3442
2846	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3443	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2847		3444
2848	BOOT:	3445	BOOT:
…		…
2876		3473
2877	void	3474	void
2878	_register (char *target, char *proto, SV *req)	3475	_register (char *target, char *proto, SV *req)
2879	CODE:	3476	CODE:
2880	{	3477	{
2881	HV *st;	3478	CV *req_cv = coro_sv_2cv (aTHX_ req);
2882	GV *gvp;
2883	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2884	/* newXSproto doesn't return the CV on 5.8 */	3479	/* newXSproto doesn't return the CV on 5.8 */
2885	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3480	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2886	sv_setpv ((SV *)slf_cv, proto);	3481	sv_setpv ((SV *)slf_cv, proto);
2887	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3482	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2888	}	3483	}

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