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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.299 by root, Wed Nov 19 00:06:55 2008 UTC vs.
Revision 1.330 by root, Wed Nov 26 09:29:06 2008 UTC

…		…
16		16
17	#ifdef WIN32	17	#ifdef WIN32
18	# undef setjmp	18	# undef setjmp
19	# undef longjmp	19	# undef longjmp
20	# undef _exit	20	# undef _exit
21	# define setjmp _setjmp // deep magic, don't ask	21	# define setjmp _setjmp /* deep magic */
22	#else	22	#else
23	# include <inttypes.h> /* most portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
24	#endif	24	#endif
25		25
26	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
167	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
168	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
169	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
170	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
		181
172	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
173	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
174	static SV *rv_diehook;	184	static SV *rv_diehook;
175	static SV *rv_warnhook;	185	static SV *rv_warnhook;
176	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
177		187
178	/* async_pool helper stuff */	188	/* async_pool helper stuff */
179	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
180	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV *sv_async_pool_idle; /* description string */
181	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;
182		196
183	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
184	static SV *sv_activity;	198	static SV *sv_activity;
185		199
186	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
215	int valgrind_id;	229	int valgrind_id;
216	#endif	230	#endif
217	unsigned char flags;	231	unsigned char flags;
218	} coro_cctx;	232	} coro_cctx;
219		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
220	enum {	238	enum {
221	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
222	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
223	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
224	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
229	{	247	{
230	SV *defsv;	248	SV *defsv;
231	AV *defav;	249	AV *defav;
232	SV *errsv;	250	SV *errsv;
233	SV *irsgv;	251	SV *irsgv;
		252	HV *hinthv;
234	#define VAR(name,type) type name;	253	#define VAR(name,type) type name;
235	# include "state.h"	254	# include "state.h"
236	#undef VAR	255	#undef VAR
237	} perl_slots;	256	} perl_slots;
238		257
…		…
246	/* state data */	265	/* state data */
247	struct CoroSLF slf_frame; /* saved slf frame */	266	struct CoroSLF slf_frame; /* saved slf frame */
248	AV *mainstack;	267	AV *mainstack;
249	perl_slots *slot; /* basically the saved sp */	268	perl_slots *slot; /* basically the saved sp */
250		269
		270	CV *startcv; /* the CV to execute */
251	AV *args; /* data associated with this coroutine (initial args) */	271	AV *args; /* data associated with this coroutine (initial args) */
252	int refcnt; /* coroutines are refcounted, yes */	272	int refcnt; /* coroutines are refcounted, yes */
253	int flags; /* CF_ flags */	273	int flags; /* CF_ flags */
254	HV *hv; /* the perl hash associated with this coro, if any */	274	HV *hv; /* the perl hash associated with this coro, if any */
255	void (*on_destroy)(pTHX_ struct coro *coro);	275	void (*on_destroy)(pTHX_ struct coro *coro);
256		276
257	/* statistics */	277	/* statistics */
258	int usecount; /* number of transfers to this coro */	278	int usecount; /* number of transfers to this coro */
259		279
260	/* coro process data */	280	/* coro process data */
261	int prio;	281	int prio;
262	SV *except; /* exception to be thrown */	282	SV *except; /* exception to be thrown */
		283	SV *rouse_cb;
263		284
264	/* async_pool */	285	/* async_pool */
265	SV *saved_deffh;	286	SV *saved_deffh;
		287	SV *invoke_cb;
		288	AV *invoke_av;
266		289
267	/* linked list */	290	/* linked list */
268	struct coro *next, *prev;	291	struct coro *next, *prev;
269	};	292	};
270		293
…		…
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 ();
…		…
353	if (SvREFCNT (padlist))	386	if (SvREFCNT (padlist))
354	{	387	{
355	I32 i = AvFILLp (padlist);	388	I32 i = AvFILLp (padlist);
356	while (i >= 0)	389	while (i >= 0)
357	{	390	{
358	SV **svp = av_fetch (padlist, i--, FALSE);	391	SV **svp = AvARRAY (padlist)[i--];
359	if (svp)	392	if (svp)
360	{	393	{
361	SV *sv;	394	AvREAL_on (*svp);
362	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
363	SvREFCNT_dec (sv);	395	av_undef (*svp);
364
365	SvREFCNT_dec (*svp);	396	SvREFCNT_dec (*svp);
366	}	397	}
367	}	398	}
368		399
369	SvREFCNT_dec ((SV*)padlist);	400	SvREFCNT_dec ((SV*)padlist);
…		…
448	else	479	else
449	{	480	{
450	#if CORO_PREFER_PERL_FUNCTIONS	481	#if CORO_PREFER_PERL_FUNCTIONS
451	/* this is probably cleaner? but also slower! */	482	/* this is probably cleaner? but also slower! */
452	/* in practise, it seems to be less stable */	483	/* in practise, it seems to be less stable */
453	CV *cp = Perl_cv_clone (cv);	484	CV *cp = Perl_cv_clone (aTHX_ cv);
454	CvPADLIST (cv) = CvPADLIST (cp);	485	CvPADLIST (cv) = CvPADLIST (cp);
455	CvPADLIST (cp) = 0;	486	CvPADLIST (cp) = 0;
456	SvREFCNT_dec (cp);	487	SvREFCNT_dec (cp);
457	#else	488	#else
458	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	489	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
459	#endif	490	#endif
460	}	491	}
461	}	492	}
462		493
463	static void	494	static void
…		…
470	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	501	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
471		502
472	av = (AV *)mg->mg_obj;	503	av = (AV *)mg->mg_obj;
473		504
474	if (expect_false (AvFILLp (av) >= AvMAX (av)))	505	if (expect_false (AvFILLp (av) >= AvMAX (av)))
475	av_extend (av, AvMAX (av) + 1);	506	av_extend (av, AvFILLp (av) + 1);
476		507
477	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	508	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
478	}	509	}
479		510
480	/** load & save, init *******************************************************/	511	/** load & save, init *******************************************************/
…		…
485	perl_slots *slot = c->slot;	516	perl_slots *slot = c->slot;
486	c->slot = 0;	517	c->slot = 0;
487		518
488	PL_mainstack = c->mainstack;	519	PL_mainstack = c->mainstack;
489		520
490	GvSV (PL_defgv) = slot->defsv;	521	GvSV (PL_defgv) = slot->defsv;
491	GvAV (PL_defgv) = slot->defav;	522	GvAV (PL_defgv) = slot->defav;
492	GvSV (PL_errgv) = slot->errsv;	523	GvSV (PL_errgv) = slot->errsv;
493	GvSV (irsgv) = slot->irsgv;	524	GvSV (irsgv) = slot->irsgv;
		525	GvHV (PL_hintgv) = slot->hinthv;
494		526
495	#define VAR(name,type) PL_ ## name = slot->name;	527	#define VAR(name,type) PL_ ## name = slot->name;
496	# include "state.h"	528	# include "state.h"
497	#undef VAR	529	#undef VAR
498		530
…		…
584	c->mainstack = PL_mainstack;	616	c->mainstack = PL_mainstack;
585		617
586	{	618	{
587	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	619	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
588		620
589	slot->defav = GvAV (PL_defgv);	621	slot->defav = GvAV (PL_defgv);
590	slot->defsv = DEFSV;	622	slot->defsv = DEFSV;
591	slot->errsv = ERRSV;	623	slot->errsv = ERRSV;
592	slot->irsgv = GvSV (irsgv);	624	slot->irsgv = GvSV (irsgv);
		625	slot->hinthv = GvHV (PL_hintgv);
593		626
594	#define VAR(name,type) slot->name = PL_ ## name;	627	#define VAR(name,type) slot->name = PL_ ## name;
595	# include "state.h"	628	# include "state.h"
596	#undef VAR	629	#undef VAR
597	}	630	}
…		…
602	* of perl.c:init_stacks, except that it uses less memory	635	* of perl.c:init_stacks, except that it uses less memory
603	* on the (sometimes correct) assumption that coroutines do	636	* on the (sometimes correct) assumption that coroutines do
604	* not usually need a lot of stackspace.	637	* not usually need a lot of stackspace.
605	*/	638	*/
606	#if CORO_PREFER_PERL_FUNCTIONS	639	#if CORO_PREFER_PERL_FUNCTIONS
607	# define coro_init_stacks init_stacks	640	# define coro_init_stacks(thx) init_stacks ()
608	#else	641	#else
609	static void	642	static void
610	coro_init_stacks (pTHX)	643	coro_init_stacks (pTHX)
611	{	644	{
612	PL_curstackinfo = new_stackinfo(32, 8);	645	PL_curstackinfo = new_stackinfo(32, 8);
…		…
675	#if !PERL_VERSION_ATLEAST (5,10,0)	708	#if !PERL_VERSION_ATLEAST (5,10,0)
676	Safefree (PL_retstack);	709	Safefree (PL_retstack);
677	#endif	710	#endif
678	}	711	}
679		712
		713	#define CORO_RSS \
		714	rss += sizeof (SYM (curstackinfo)); \
		715	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		716	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		717	rss += SYM (tmps_max) * sizeof (SV *); \
		718	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		719	rss += SYM (scopestack_max) * sizeof (I32); \
		720	rss += SYM (savestack_max) * sizeof (ANY);
		721
680	static size_t	722	static size_t
681	coro_rss (pTHX_ struct coro *coro)	723	coro_rss (pTHX_ struct coro *coro)
682	{	724	{
683	size_t rss = sizeof (*coro);	725	size_t rss = sizeof (*coro);
684		726
685	if (coro->mainstack)	727	if (coro->mainstack)
686	{	728	{
687	perl_slots tmp_slot;
688	perl_slots *slot;
689
690	if (coro->flags & CF_RUNNING)	729	if (coro->flags & CF_RUNNING)
691	{	730	{
692	slot = &tmp_slot;	731	#define SYM(sym) PL_ ## sym
693		732	CORO_RSS;
694	#define VAR(name,type) slot->name = PL_ ## name;
695	# include "state.h"
696	#undef VAR	733	#undef SYM
697	}	734	}
698	else	735	else
699	slot = coro->slot;
700
701	if (slot)
702	{	736	{
703	rss += sizeof (slot->curstackinfo);	737	#define SYM(sym) coro->slot->sym
704	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	738	CORO_RSS;
705	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	739	#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	}	740	}
715	}	741	}
716		742
717	return rss;	743	return rss;
718	}	744	}
…		…
820	slf_check_nop (pTHX_ struct CoroSLF *frame)	846	slf_check_nop (pTHX_ struct CoroSLF *frame)
821	{	847	{
822	return 0;	848	return 0;
823	}	849	}
824		850
		851	static int
		852	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		853	{
		854	return 1;
		855	}
		856
825	static UNOP coro_setup_op;	857	static UNOP coro_setup_op;
826		858
827	static void NOINLINE /* noinline to keep it out of the transfer fast path */	859	static void NOINLINE /* noinline to keep it out of the transfer fast path */
828	coro_setup (pTHX_ struct coro *coro)	860	coro_setup (pTHX_ struct coro *coro)
829	{	861	{
…		…
834		866
835	PL_runops = RUNOPS_DEFAULT;	867	PL_runops = RUNOPS_DEFAULT;
836	PL_curcop = &PL_compiling;	868	PL_curcop = &PL_compiling;
837	PL_in_eval = EVAL_NULL;	869	PL_in_eval = EVAL_NULL;
838	PL_comppad = 0;	870	PL_comppad = 0;
		871	PL_comppad_name = 0;
		872	PL_comppad_name_fill = 0;
		873	PL_comppad_name_floor = 0;
839	PL_curpm = 0;	874	PL_curpm = 0;
840	PL_curpad = 0;	875	PL_curpad = 0;
841	PL_localizing = 0;	876	PL_localizing = 0;
842	PL_dirty = 0;	877	PL_dirty = 0;
843	PL_restartop = 0;	878	PL_restartop = 0;
844	#if PERL_VERSION_ATLEAST (5,10,0)	879	#if PERL_VERSION_ATLEAST (5,10,0)
845	PL_parser = 0;	880	PL_parser = 0;
846	#endif	881	#endif
		882	PL_hints = 0;
847		883
848	/* recreate the die/warn hooks */	884	/* recreate the die/warn hooks */
849	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	885	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);	886	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
851		887
852	GvSV (PL_defgv) = newSV (0);	888	GvSV (PL_defgv) = newSV (0);
853	GvAV (PL_defgv) = coro->args; coro->args = 0;	889	GvAV (PL_defgv) = coro->args; coro->args = 0;
854	GvSV (PL_errgv) = newSV (0);	890	GvSV (PL_errgv) = newSV (0);
855	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	891	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		892	GvHV (PL_hintgv) = 0;
856	PL_rs = newSVsv (GvSV (irsgv));	893	PL_rs = newSVsv (GvSV (irsgv));
857	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	894	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
858		895
859	{	896	{
860	dSP;	897	dSP;
861	UNOP myop;	898	UNOP myop;
862		899
863	Zero (&myop, 1, UNOP);	900	Zero (&myop, 1, UNOP);
864	myop.op_next = Nullop;	901	myop.op_next = Nullop;
		902	myop.op_type = OP_ENTERSUB;
865	myop.op_flags = OPf_WANT_VOID;	903	myop.op_flags = OPf_WANT_VOID;
866		904
867	PUSHMARK (SP);	905	PUSHMARK (SP);
868	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	906	PUSHs ((SV *)coro->startcv);
869	PUTBACK;	907	PUTBACK;
870	PL_op = (OP *)&myop;	908	PL_op = (OP *)&myop;
871	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	909	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
872	SPAGAIN;
873	}	910	}
874		911
875	/* this newly created coroutine might be run on an existing cctx which most	912	/* 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.	913	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
877	*/	914	*/
878	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	915	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 */	916	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
880		917
881	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	918	/* 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;	919	coro_setup_op.op_next = PL_op;
883	coro_setup_op.op_type = OP_CUSTOM;	920	coro_setup_op.op_type = OP_ENTERSUB;
884	coro_setup_op.op_ppaddr = pp_slf;	921	coro_setup_op.op_ppaddr = pp_slf;
885	/* no flags required, as an init function won't be called */	922	/* no flags etc. required, as an init function won't be called */
886		923
887	PL_op = (OP *)&coro_setup_op;	924	PL_op = (OP *)&coro_setup_op;
888		925
889	/* copy throw, in case it was set before coro_setup */	926	/* copy throw, in case it was set before coro_setup */
890	CORO_THROW = coro->except;	927	CORO_THROW = coro->except;
…		…
914	SvREFCNT_dec (GvAV (PL_defgv));	951	SvREFCNT_dec (GvAV (PL_defgv));
915	SvREFCNT_dec (GvSV (PL_errgv));	952	SvREFCNT_dec (GvSV (PL_errgv));
916	SvREFCNT_dec (PL_defoutgv);	953	SvREFCNT_dec (PL_defoutgv);
917	SvREFCNT_dec (PL_rs);	954	SvREFCNT_dec (PL_rs);
918	SvREFCNT_dec (GvSV (irsgv));	955	SvREFCNT_dec (GvSV (irsgv));
		956	SvREFCNT_dec (GvHV (PL_hintgv));
919		957
920	SvREFCNT_dec (PL_diehook);	958	SvREFCNT_dec (PL_diehook);
921	SvREFCNT_dec (PL_warnhook);	959	SvREFCNT_dec (PL_warnhook);
922		960
923	SvREFCNT_dec (coro->saved_deffh);	961	SvREFCNT_dec (coro->saved_deffh);
924	SvREFCNT_dec (CORO_THROW);	962	SvREFCNT_dec (coro->rouse_cb);
		963	SvREFCNT_dec (coro->invoke_cb);
		964	SvREFCNT_dec (coro->invoke_av);
925		965
926	coro_destruct_stacks (aTHX);	966	coro_destruct_stacks (aTHX);
927	}	967	}
928		968
929	INLINE void	969	INLINE void
…		…
939	static int	979	static int
940	runops_trace (pTHX)	980	runops_trace (pTHX)
941	{	981	{
942	COP *oldcop = 0;	982	COP *oldcop = 0;
943	int oldcxix = -2;	983	int oldcxix = -2;
944	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
945	coro_cctx *cctx = coro->cctx;
946		984
947	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	985	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
948	{	986	{
949	PERL_ASYNC_CHECK ();	987	PERL_ASYNC_CHECK ();
950		988
951	if (cctx->flags & CC_TRACE_ALL)	989	if (cctx_current->flags & CC_TRACE_ALL)
952	{	990	{
953	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	991	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
954	{	992	{
955	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	993	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
956	SV **bot, **top;	994	SV **bot, **top;
957	AV *av = newAV (); /* return values */	995	AV *av = newAV (); /* return values */
958	SV **cb;	996	SV **cb;
…		…
995		1033
996	if (PL_curcop != &PL_compiling)	1034	if (PL_curcop != &PL_compiling)
997	{	1035	{
998	SV **cb;	1036	SV **cb;
999		1037
1000	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1038	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1001	{	1039	{
1002	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1040	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1003		1041
1004	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1042	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1005	{	1043	{
1006	runops_proc_t old_runops = PL_runops;
1007	dSP;	1044	dSP;
1008	GV *gv = CvGV (cx->blk_sub.cv);	1045	GV *gv = CvGV (cx->blk_sub.cv);
1009	SV *fullname = sv_2mortal (newSV (0));	1046	SV *fullname = sv_2mortal (newSV (0));
1010		1047
1011	if (isGV (gv))	1048	if (isGV (gv))
…		…
1016	SAVETMPS;	1053	SAVETMPS;
1017	EXTEND (SP, 3);	1054	EXTEND (SP, 3);
1018	PUSHMARK (SP);	1055	PUSHMARK (SP);
1019	PUSHs (&PL_sv_yes);	1056	PUSHs (&PL_sv_yes);
1020	PUSHs (fullname);	1057	PUSHs (fullname);
1021	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1058	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1022	PUTBACK;	1059	PUTBACK;
1023	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1060	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);	1061	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1025	SPAGAIN;	1062	SPAGAIN;
1026	FREETMPS;	1063	FREETMPS;
…		…
1029	}	1066	}
1030		1067
1031	oldcxix = cxstack_ix;	1068	oldcxix = cxstack_ix;
1032	}	1069	}
1033		1070
1034	if (cctx->flags & CC_TRACE_LINE)	1071	if (cctx_current->flags & CC_TRACE_LINE)
1035	{	1072	{
1036	dSP;	1073	dSP;
1037		1074
1038	PL_runops = RUNOPS_DEFAULT;	1075	PL_runops = RUNOPS_DEFAULT;
1039	ENTER;	1076	ENTER;
…		…
1058		1095
1059	TAINT_NOT;	1096	TAINT_NOT;
1060	return 0;	1097	return 0;
1061	}	1098	}
1062		1099
1063	static struct coro_cctx *cctx_ssl_cctx;
1064	static struct CoroSLF cctx_ssl_frame;	1100	static struct CoroSLF cctx_ssl_frame;
1065		1101
1066	static void	1102	static void
1067	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1103	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1068	{	1104	{
1069	ta->prev = (struct coro *)cctx_ssl_cctx;
1070	ta->next = 0;	1105	ta->prev = 0;
1071	}	1106	}
1072		1107
1073	static int	1108	static int
1074	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1109	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1075	{	1110	{
…		…
1078	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1113	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1079	}	1114	}
1080		1115
1081	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1116	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1082	static void NOINLINE	1117	static void NOINLINE
1083	cctx_prepare (pTHX_ coro_cctx *cctx)	1118	cctx_prepare (pTHX)
1084	{	1119	{
1085	PL_top_env = &PL_start_env;	1120	PL_top_env = &PL_start_env;
1086		1121
1087	if (cctx->flags & CC_TRACE)	1122	if (cctx_current->flags & CC_TRACE)
1088	PL_runops = runops_trace;	1123	PL_runops = runops_trace;
1089		1124
1090	/* we already must be executing an SLF op, there is no other valid way	1125	/* we already must be executing an SLF op, there is no other valid way
1091	* that can lead to creation of a new cctx */	1126	* that can lead to creation of a new cctx */
1092	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1127	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1093	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1128	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1094		1129
1095	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1130	/* 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;	1131	cctx_ssl_frame = slf_frame;
1098		1132
1099	slf_frame.prepare = slf_prepare_set_stacklevel;	1133	slf_frame.prepare = slf_prepare_set_stacklevel;
1100	slf_frame.check = slf_check_set_stacklevel;	1134	slf_frame.check = slf_check_set_stacklevel;
1101	}	1135	}
…		…
1124	/* normally we would need to skip the entersub here */	1158	/* normally we would need to skip the entersub here */
1125	/* not doing so will re-execute it, which is exactly what we want */	1159	/* not doing so will re-execute it, which is exactly what we want */
1126	/* PL_nop = PL_nop->op_next */	1160	/* PL_nop = PL_nop->op_next */
1127		1161
1128	/* inject a fake subroutine call to cctx_init */	1162	/* inject a fake subroutine call to cctx_init */
1129	cctx_prepare (aTHX_ (coro_cctx *)arg);	1163	cctx_prepare (aTHX);
1130		1164
1131	/* cctx_run is the alternative tail of transfer() */	1165	/* cctx_run is the alternative tail of transfer() */
1132	transfer_tail (aTHX);	1166	transfer_tail (aTHX);
1133		1167
1134	/* somebody or something will hit me for both perl_run and PL_restartop */	1168	/* somebody or something will hit me for both perl_run and PL_restartop */
1135	PL_restartop = PL_op;	1169	PL_restartop = PL_op;
1136	perl_run (PL_curinterp);	1170	perl_run (PL_curinterp);
		1171	/*
		1172	* Unfortunately, there is no way to get at the return values of the
		1173	* coro body here, as perl_run destroys these
		1174	*/
1137		1175
1138	/*	1176	/*
1139	* If perl-run returns we assume exit() was being called or the coro	1177	* 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)	1178	* 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	1179	* 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"	1180	* bootstrap-time "top" top_env, as we cannot restore the "main"
1143	* coroutine as Coro has no such concept	1181	* coroutine as Coro has no such concept.
		1182	* This actually isn't valid with the pthread backend, but OSes requiring
		1183	* that backend are too broken to do it in a standards-compliant way.
1144	*/	1184	*/
1145	PL_top_env = main_top_env;	1185	PL_top_env = main_top_env;
1146	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1186	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1147	}	1187	}
1148	}	1188	}
…		…
1225	cctx_destroy (coro_cctx *cctx)	1265	cctx_destroy (coro_cctx *cctx)
1226	{	1266	{
1227	if (!cctx)	1267	if (!cctx)
1228	return;	1268	return;
1229		1269
		1270	assert (cctx != cctx_current);//D temporary
		1271
1230	--cctx_count;	1272	--cctx_count;
1231	coro_destroy (&cctx->cctx);	1273	coro_destroy (&cctx->cctx);
1232		1274
1233	/* coro_transfer creates new, empty cctx's */	1275	/* coro_transfer creates new, empty cctx's */
1234	if (cctx->sptr)	1276	if (cctx->sptr)
…		…
1297	/* TODO: throwing up here is considered harmful */	1339	/* TODO: throwing up here is considered harmful */
1298		1340
1299	if (expect_true (prev != next))	1341	if (expect_true (prev != next))
1300	{	1342	{
1301	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1343	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,");	1344	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1303		1345
1304	if (expect_false (next->flags & CF_RUNNING))	1346	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,");	1347	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1306		1348
1307	if (expect_false (next->flags & CF_DESTROYED))	1349	if (expect_false (next->flags & CF_DESTROYED))
…		…
1319	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1361	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1320	{	1362	{
1321	dSTACKLEVEL;	1363	dSTACKLEVEL;
1322		1364
1323	/* sometimes transfer is only called to set idle_sp */	1365	/* sometimes transfer is only called to set idle_sp */
1324	if (expect_false (!next))	1366	if (expect_false (!prev))
1325	{	1367	{
1326	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1368	cctx_current->idle_sp = STACKLEVEL;
1327	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 */
1328	}	1370	}
1329	else if (expect_true (prev != next))	1371	else if (expect_true (prev != next))
1330	{	1372	{
1331	coro_cctx *prev__cctx;	1373	coro_cctx *cctx_prev;
1332		1374
1333	if (expect_false (prev->flags & CF_NEW))	1375	if (expect_false (prev->flags & CF_NEW))
1334	{	1376	{
1335	/* create a new empty/source context */	1377	/* create a new empty/source context */
1336	prev->cctx = cctx_new_empty ();
1337	prev->flags &= ~CF_NEW;	1378	prev->flags &= ~CF_NEW;
1338	prev->flags |= CF_RUNNING;	1379	prev->flags |= CF_RUNNING;
1339	}	1380	}
1340		1381
1341	prev->flags &= ~CF_RUNNING;	1382	prev->flags &= ~CF_RUNNING;
…		…
1352	coro_setup (aTHX_ next);	1393	coro_setup (aTHX_ next);
1353	}	1394	}
1354	else	1395	else
1355	load_perl (aTHX_ next);	1396	load_perl (aTHX_ next);
1356		1397
1357	prev__cctx = prev->cctx;	1398	assert (!prev->cctx);//D temporary
1358		1399
1359	/* possibly untie and reuse the cctx */	1400	/* possibly untie and reuse the cctx */
1360	if (expect_true (	1401	if (expect_true (
1361	prev__cctx->idle_sp == STACKLEVEL	1402	cctx_current->idle_sp == STACKLEVEL
1362	&& !(prev__cctx->flags & CC_TRACE)	1403	&& !(cctx_current->flags & CC_TRACE)
1363	&& !force_cctx	1404	&& !force_cctx
1364	))	1405	))
1365	{	1406	{
1366	/* 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 */
1367	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));
1368		1409
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 */	1410	/* 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 */	1411	/* without this the next cctx_get might destroy the running cctx while still in use */
1373	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1412	if (expect_false (CCTX_EXPIRED (cctx_current)))
1374	if (!next->cctx)	1413	if (expect_true (!next->cctx))
1375	next->cctx = cctx_get (aTHX);	1414	next->cctx = cctx_get (aTHX);
1376		1415
1377	cctx_put (prev__cctx);	1416	cctx_put (cctx_current);
1378	}	1417	}
		1418	else
		1419	prev->cctx = cctx_current;
1379		1420
1380	++next->usecount;	1421	++next->usecount;
1381		1422
1382	if (expect_true (!next->cctx))	1423	cctx_prev = cctx_current;
1383	next->cctx = cctx_get (aTHX);	1424	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1384		1425
1385	if (expect_false (prev__cctx != next->cctx))	1426	next->cctx = 0;
		1427
		1428	if (expect_false (cctx_prev != cctx_current))
1386	{	1429	{
1387	prev__cctx->top_env = PL_top_env;	1430	cctx_prev->top_env = PL_top_env;
1388	PL_top_env = next->cctx->top_env;	1431	PL_top_env = cctx_current->top_env;
1389	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1432	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1390	}	1433	}
1391		1434
1392	transfer_tail (aTHX);	1435	transfer_tail (aTHX);
1393	}	1436	}
1394	}	1437	}
…		…
1433		1476
1434	coro->slot = 0;	1477	coro->slot = 0;
1435	}	1478	}
1436		1479
1437	cctx_destroy (coro->cctx);	1480	cctx_destroy (coro->cctx);
		1481	SvREFCNT_dec (coro->startcv);
1438	SvREFCNT_dec (coro->args);	1482	SvREFCNT_dec (coro->args);
		1483	SvREFCNT_dec (CORO_THROW);
1439		1484
1440	if (coro->next) coro->next->prev = coro->prev;	1485	if (coro->next) coro->next->prev = coro->prev;
1441	if (coro->prev) coro->prev->next = coro->next;	1486	if (coro->prev) coro->prev->next = coro->next;
1442	if (coro == coro_first) coro_first = coro->next;	1487	if (coro == coro_first) coro_first = coro->next;
1443		1488
…		…
1497		1542
1498	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1543	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499	TRANSFER (ta, 1);	1544	TRANSFER (ta, 1);
1500	}	1545	}
1501		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
1502	/** Coro ********************************************************************/	1570	/** Coro ********************************************************************/
1503		1571
1504	INLINE void	1572	INLINE void
1505	coro_enq (pTHX_ struct coro *coro)	1573	coro_enq (pTHX_ struct coro *coro)
1506	{	1574	{
…		…
1524	{	1592	{
1525	struct coro *coro;	1593	struct coro *coro;
1526	SV *sv_hook;	1594	SV *sv_hook;
1527	void (*xs_hook)(void);	1595	void (*xs_hook)(void);
1528		1596
1529	if (SvROK (coro_sv))
1530	coro_sv = SvRV (coro_sv);
1531
1532	coro = SvSTATE (coro_sv);	1597	coro = SvSTATE (coro_sv);
1533		1598
1534	if (coro->flags & CF_READY)	1599	if (coro->flags & CF_READY)
1535	return 0;	1600	return 0;
1536		1601
…		…
1567	api_is_ready (pTHX_ SV *coro_sv)	1632	api_is_ready (pTHX_ SV *coro_sv)
1568	{	1633	{
1569	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1634	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1570	}	1635	}
1571		1636
		1637	/* expects to own a reference to next->hv */
1572	INLINE void	1638	INLINE void
1573	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1639	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1574	{	1640	{
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);	1641	SV *prev_sv = SvRV (coro_current);
		1642
1614	ta->prev = SvSTATE_hv (prev_sv);	1643	ta->prev = SvSTATE_hv (prev_sv);
		1644	ta->next = next;
		1645
1615	TRANSFER_CHECK (*ta);	1646	TRANSFER_CHECK (*ta);
1616	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1647
1617	ta->next->flags &= ~CF_READY;
1618	SvRV_set (coro_current, next_sv);	1648	SvRV_set (coro_current, (SV *)next->hv);
1619		1649
1620	free_coro_mortal (aTHX);	1650	free_coro_mortal (aTHX);
1621	coro_mortal = prev_sv;	1651	coro_mortal = prev_sv;
1622	}	1652	}
1623		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
1624	INLINE void	1705	INLINE void
1625	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1706	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1626	{	1707	{
1627	api_ready (aTHX_ coro_current);	1708	api_ready (aTHX_ coro_current);
1628	prepare_schedule (aTHX_ ta);	1709	prepare_schedule (aTHX_ ta);
…		…
1647	{	1728	{
1648	struct coro_transfer_args ta;	1729	struct coro_transfer_args ta;
1649		1730
1650	prepare_schedule (aTHX_ &ta);	1731	prepare_schedule (aTHX_ &ta);
1651	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);
1652	}	1743	}
1653		1744
1654	static int	1745	static int
1655	api_cede (pTHX)	1746	api_cede (pTHX)
1656	{	1747	{
…		…
1685	static void	1776	static void
1686	api_trace (pTHX_ SV *coro_sv, int flags)	1777	api_trace (pTHX_ SV *coro_sv, int flags)
1687	{	1778	{
1688	struct coro *coro = SvSTATE (coro_sv);	1779	struct coro *coro = SvSTATE (coro_sv);
1689		1780
		1781	if (coro->flags & CF_RUNNING)
		1782	croak ("cannot enable tracing on a running coroutine, caught");
		1783
1690	if (flags & CC_TRACE)	1784	if (flags & CC_TRACE)
1691	{	1785	{
1692	if (!coro->cctx)	1786	if (!coro->cctx)
1693	coro->cctx = cctx_new_run ();	1787	coro->cctx = cctx_new_run ();
1694	else if (!(coro->cctx->flags & CC_TRACE))	1788	else if (!(coro->cctx->flags & CC_TRACE))
1695	croak ("cannot enable tracing on coroutine with custom stack,");	1789	croak ("cannot enable tracing on coroutine with custom stack, caught");
1696		1790
1697	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1791	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1698	}	1792	}
1699	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1793	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1700	{	1794	{
…		…
1703	if (coro->flags & CF_RUNNING)	1797	if (coro->flags & CF_RUNNING)
1704	PL_runops = RUNOPS_DEFAULT;	1798	PL_runops = RUNOPS_DEFAULT;
1705	else	1799	else
1706	coro->slot->runops = RUNOPS_DEFAULT;	1800	coro->slot->runops = RUNOPS_DEFAULT;
1707	}	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;
1708	}	2041	}
1709		2042
1710	/*****************************************************************************/	2043	/*****************************************************************************/
1711	/* schedule-like-function opcode (SLF) */	2044	/* schedule-like-function opcode (SLF) */
1712		2045
…		…
1759	static void	2092	static void
1760	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)
1761	{	2094	{
1762	frame->prepare = prepare_schedule;	2095	frame->prepare = prepare_schedule;
1763	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);
1764	}	2125	}
1765		2126
1766	static void	2127	static void
1767	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)
1768	{	2129	{
…		…
1914	}	2275	}
1915	else	2276	else
1916	slf_argc = 0;	2277	slf_argc = 0;
1917		2278
1918	PL_op->op_ppaddr = pp_slf;	2279	PL_op->op_ppaddr = pp_slf;
1919	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 */
1920		2281
1921	PL_op = (OP *)&slf_restore;	2282	PL_op = (OP *)&slf_restore;
1922	}	2283	}
1923		2284
1924	/*****************************************************************************/	2285	/*****************************************************************************/
…		…
1995	PerlIOBuf_get_cnt,	2356	PerlIOBuf_get_cnt,
1996	PerlIOBuf_set_ptrcnt,	2357	PerlIOBuf_set_ptrcnt,
1997	};	2358	};
1998		2359
1999	/*****************************************************************************/	2360	/*****************************************************************************/
2000	/* Coro::Semaphore */	2361	/* Coro::Semaphore & Coro::Signal */
2001		2362
2002	static SV *	2363	static SV *
2003	coro_semaphore_new (int count)	2364	coro_waitarray_new (pTHX_ int count)
2004	{	2365	{
2005	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2366	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2006	AV *av = newAV ();	2367	AV *av = newAV ();
2007	SV **ary;	2368	SV **ary;
2008		2369
2009	/* unfortunately, building manually saves memory */	2370	/* unfortunately, building manually saves memory */
2010	Newx (ary, 2, SV *);	2371	Newx (ary, 2, SV *);
2011	AvALLOC (av) = ary;	2372	AvALLOC (av) = ary;
		2373	#if PERL_VERSION_ATLEAST (5,10,0)
2012	AvARRAY (av) = ary;	2374	AvARRAY (av) = ary;
		2375	#else
		2376	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2377	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2378	SvPVX ((SV *)av) = (char *)ary;
		2379	#endif
2013	AvMAX (av) = 1;	2380	AvMAX (av) = 1;
2014	AvFILLp (av) = 0;	2381	AvFILLp (av) = 0;
2015	ary [0] = newSViv (count);	2382	ary [0] = newSViv (count);
2016		2383
2017	return newRV_noinc ((SV *)av);	2384	return newRV_noinc ((SV *)av);
2018	}	2385	}
		2386
		2387	/* semaphore */
2019		2388
2020	static void	2389	static void
2021	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2390	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2022	{	2391	{
2023	SV *count_sv = AvARRAY (av)[0];	2392	SV *count_sv = AvARRAY (av)[0];
…		…
2035	AvARRAY (av)[0] = AvARRAY (av)[1];	2404	AvARRAY (av)[0] = AvARRAY (av)[1];
2036	AvARRAY (av)[1] = count_sv;	2405	AvARRAY (av)[1] = count_sv;
2037	cb = av_shift (av);	2406	cb = av_shift (av);
2038		2407
2039	if (SvOBJECT (cb))	2408	if (SvOBJECT (cb))
		2409	{
2040	api_ready (aTHX_ cb);	2410	api_ready (aTHX_ cb);
2041	else	2411	--count;
2042	croak ("callbacks not yet supported");	2412	}
		2413	else if (SvTYPE (cb) == SVt_PVCV)
		2414	{
		2415	dSP;
		2416	PUSHMARK (SP);
		2417	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2418	PUTBACK;
		2419	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2420	}
2043		2421
2044	SvREFCNT_dec (cb);	2422	SvREFCNT_dec (cb);
2045
2046	--count;
2047	}	2423	}
2048	}	2424	}
2049		2425
2050	static void	2426	static void
2051	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2427	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2133	}	2509	}
2134		2510
2135	static void	2511	static void
2136	slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2512	slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2137	{	2513	{
		2514	if (items >= 2)
		2515	{
		2516	/* callback form */
		2517	AV *av = (AV *)SvRV (arg [0]);
		2518	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
		2519
		2520	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
		2521
		2522	if (SvIVX (AvARRAY (av)[0]) > 0)
		2523	coro_semaphore_adjust (aTHX_ av, 0);
		2524
		2525	frame->prepare = prepare_nop;
		2526	frame->check = slf_check_nop;
		2527	}
		2528	else
		2529	{
2138	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);	2530	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2139	frame->check = slf_check_semaphore_wait;	2531	frame->check = slf_check_semaphore_wait;
		2532	}
2140	}	2533	}
2141		2534
2142	/*****************************************************************************/	2535	/* signal */
2143	/* gensub: simple closure generation utility */
2144		2536
2145	#define GENSUB_ARG CvXSUBANY (cv).any_ptr	2537	static void
2146		2538	coro_signal_wake (pTHX_ AV *av, int count)
2147	/* create a closure from XS, returns a code reference */
2148	/* the arg can be accessed via GENSUB_ARG from the callback */
2149	/* the callback must use dXSARGS/XSRETURN */
2150	static SV *
2151	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2152	{	2539	{
2153	CV *cv = (CV *)newSV (0);	2540	SvIVX (AvARRAY (av)[0]) = 0;
2154		2541
2155	sv_upgrade ((SV *)cv, SVt_PVCV);	2542	/* now signal count waiters */
		2543	while (count > 0 && AvFILLp (av) > 0)
		2544	{
		2545	SV *cb;
2156		2546
2157	CvANON_on (cv);	2547	/* swap first two elements so we can shift a waiter */
2158	CvISXSUB_on (cv);	2548	cb = AvARRAY (av)[0];
2159	CvXSUB (cv) = xsub;	2549	AvARRAY (av)[0] = AvARRAY (av)[1];
2160	GENSUB_ARG = arg;	2550	AvARRAY (av)[1] = cb;
2161		2551
2162	return newRV_noinc ((SV *)cv);	2552	cb = av_shift (av);
		2553
		2554	api_ready (aTHX_ cb);
		2555	sv_setiv (cb, 0); /* signal waiter */
		2556	SvREFCNT_dec (cb);
		2557
		2558	--count;
		2559	}
		2560	}
		2561
		2562	static int
		2563	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2564	{
		2565	/* if we are about to throw, also stop waiting */
		2566	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2567	}
		2568
		2569	static void
		2570	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2571	{
		2572	AV *av = (AV *)SvRV (arg [0]);
		2573
		2574	if (SvIVX (AvARRAY (av)[0]))
		2575	{
		2576	SvIVX (AvARRAY (av)[0]) = 0;
		2577	frame->prepare = prepare_nop;
		2578	frame->check = slf_check_nop;
		2579	}
		2580	else
		2581	{
		2582	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2583
		2584	av_push (av, waiter);
		2585
		2586	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2587	frame->prepare = prepare_schedule;
		2588	frame->check = slf_check_signal_wait;
		2589	}
2163	}	2590	}
2164		2591
2165	/*****************************************************************************/	2592	/*****************************************************************************/
2166	/* Coro::AIO */	2593	/* Coro::AIO */
2167		2594
…		…
2182	dXSARGS;	2609	dXSARGS;
2183	AV *state = (AV *)GENSUB_ARG;	2610	AV *state = (AV *)GENSUB_ARG;
2184	SV *coro = av_pop (state);	2611	SV *coro = av_pop (state);
2185	SV *data_sv = newSV (sizeof (struct io_state));	2612	SV *data_sv = newSV (sizeof (struct io_state));
2186		2613
2187	av_extend (state, items);	2614	av_extend (state, items - 1);
2188		2615
2189	sv_upgrade (data_sv, SVt_PV);	2616	sv_upgrade (data_sv, SVt_PV);
2190	SvCUR_set (data_sv, sizeof (struct io_state));	2617	SvCUR_set (data_sv, sizeof (struct io_state));
2191	SvPOK_only (data_sv);	2618	SvPOK_only (data_sv);
2192		2619
…		…
2327	XSRETURN_EMPTY;	2754	XSRETURN_EMPTY;
2328	}	2755	}
2329		2756
2330	/*****************************************************************************/	2757	/*****************************************************************************/
2331		2758
		2759	#if CORO_CLONE
		2760	# include "clone.c"
		2761	#endif
		2762
2332	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2763	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2333		2764
2334	PROTOTYPES: DISABLE	2765	PROTOTYPES: DISABLE
2335		2766
2336	BOOT:	2767	BOOT:
…		…
2340	coro_thx = PERL_GET_CONTEXT;	2771	coro_thx = PERL_GET_CONTEXT;
2341	# endif	2772	# endif
2342	#endif	2773	#endif
2343	BOOT_PAGESIZE;	2774	BOOT_PAGESIZE;
2344		2775
		2776	cctx_current = cctx_new_empty ();
		2777
2345	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2778	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2346	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2779	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2347		2780
2348	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2781	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2349	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2782	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2368		2801
2369	{	2802	{
2370	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2803	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2371		2804
2372	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2805	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2373	hv_store_ent (PL_custom_op_names, slf,	2806	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2374	newSVpv ("coro_slf", 0), 0);
2375		2807
2376	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2808	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2377	hv_store_ent (PL_custom_op_descs, slf,	2809	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2378	newSVpv ("coro schedule like function", 0), 0);
2379	}	2810	}
2380		2811
2381	coroapi.ver = CORO_API_VERSION;	2812	coroapi.ver = CORO_API_VERSION;
2382	coroapi.rev = CORO_API_REVISION;	2813	coroapi.rev = CORO_API_REVISION;
2383		2814
…		…
2402	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2833	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2403	}	2834	}
2404		2835
2405	SV *	2836	SV *
2406	new (char *klass, ...)	2837	new (char *klass, ...)
		2838	ALIAS:
		2839	Coro::new = 1
2407	CODE:	2840	CODE:
2408	{	2841	{
2409	struct coro *coro;	2842	struct coro *coro;
2410	MAGIC *mg;	2843	MAGIC *mg;
2411	HV *hv;	2844	HV *hv;
		2845	CV *cb;
2412	int i;	2846	int i;
		2847
		2848	if (items > 1)
		2849	{
		2850	cb = coro_sv_2cv (aTHX_ ST (1));
		2851
		2852	if (!ix)
		2853	{
		2854	if (CvISXSUB (cb))
		2855	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2856
		2857	if (!CvROOT (cb))
		2858	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2859	}
		2860	}
2413		2861
2414	Newz (0, coro, 1, struct coro);	2862	Newz (0, coro, 1, struct coro);
2415	coro->args = newAV ();	2863	coro->args = newAV ();
2416	coro->flags = CF_NEW;	2864	coro->flags = CF_NEW;
2417		2865
…		…
2422	coro->hv = hv = newHV ();	2870	coro->hv = hv = newHV ();
2423	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2871	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2424	mg->mg_flags |= MGf_DUP;	2872	mg->mg_flags |= MGf_DUP;
2425	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2873	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2426		2874
		2875	if (items > 1)
		2876	{
2427	av_extend (coro->args, items - 1);	2877	av_extend (coro->args, items - 1 + ix - 1);
		2878
		2879	if (ix)
		2880	{
		2881	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2882	cb = cv_coro_run;
		2883	}
		2884
		2885	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2886
2428	for (i = 1; i < items; i++)	2887	for (i = 2; i < items; i++)
2429	av_push (coro->args, newSVsv (ST (i)));	2888	av_push (coro->args, newSVsv (ST (i)));
		2889	}
2430	}	2890	}
2431	OUTPUT:	2891	OUTPUT:
2432	RETVAL	2892	RETVAL
2433		2893
2434	void	2894	void
…		…
2447	void	2907	void
2448	_exit (int code)	2908	_exit (int code)
2449	PROTOTYPE: $	2909	PROTOTYPE: $
2450	CODE:	2910	CODE:
2451	_exit (code);	2911	_exit (code);
		2912
		2913	SV *
		2914	clone (Coro::State coro)
		2915	CODE:
		2916	{
		2917	#if CORO_CLONE
		2918	struct coro *ncoro = coro_clone (coro);
		2919	MAGIC *mg;
		2920	/* TODO: too much duplication */
		2921	ncoro->hv = newHV ();
		2922	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2923	mg->mg_flags |= MGf_DUP;
		2924	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2925	#else
		2926	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2927	#endif
		2928	}
		2929	OUTPUT:
		2930	RETVAL
2452		2931
2453	int	2932	int
2454	cctx_stacksize (int new_stacksize = 0)	2933	cctx_stacksize (int new_stacksize = 0)
2455	PROTOTYPE: ;$	2934	PROTOTYPE: ;$
2456	CODE:	2935	CODE:
…		…
2577		3056
2578	SV *	3057	SV *
2579	has_cctx (Coro::State coro)	3058	has_cctx (Coro::State coro)
2580	PROTOTYPE: $	3059	PROTOTYPE: $
2581	CODE:	3060	CODE:
2582	RETVAL = boolSV (!!coro->cctx);	3061	/* maybe manage the running flag differently */
		3062	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2583	OUTPUT:	3063	OUTPUT:
2584	RETVAL	3064	RETVAL
2585		3065
2586	int	3066	int
2587	is_traced (Coro::State coro)	3067	is_traced (Coro::State coro)
…		…
2607		3087
2608	void	3088	void
2609	force_cctx ()	3089	force_cctx ()
2610	PROTOTYPE:	3090	PROTOTYPE:
2611	CODE:	3091	CODE:
2612	SvSTATE_current->cctx->idle_sp = 0;	3092	cctx_current->idle_sp = 0;
2613		3093
2614	void	3094	void
2615	swap_defsv (Coro::State self)	3095	swap_defsv (Coro::State self)
2616	PROTOTYPE: $	3096	PROTOTYPE: $
2617	ALIAS:	3097	ALIAS:
…		…
2632		3112
2633	BOOT:	3113	BOOT:
2634	{	3114	{
2635	int i;	3115	int i;
2636		3116
2637	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2638	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3117	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2639	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3118	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2640		3119	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3120	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2641	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3121	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2642	SvREADONLY_on (coro_current);	3122	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3123	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3124	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3125	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3126
		3127	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3128	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3129	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3130	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2643		3131
2644	coro_stash = gv_stashpv ("Coro", TRUE);	3132	coro_stash = gv_stashpv ("Coro", TRUE);
2645		3133
2646	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3134	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2647	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3135	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2655		3143
2656	{	3144	{
2657	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3145	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2658		3146
2659	coroapi.schedule = api_schedule;	3147	coroapi.schedule = api_schedule;
		3148	coroapi.schedule_to = api_schedule_to;
2660	coroapi.cede = api_cede;	3149	coroapi.cede = api_cede;
2661	coroapi.cede_notself = api_cede_notself;	3150	coroapi.cede_notself = api_cede_notself;
2662	coroapi.ready = api_ready;	3151	coroapi.ready = api_ready;
2663	coroapi.is_ready = api_is_ready;	3152	coroapi.is_ready = api_is_ready;
2664	coroapi.nready = coro_nready;	3153	coroapi.nready = coro_nready;
…		…
2669	SvREADONLY_on (sv);	3158	SvREADONLY_on (sv);
2670	}	3159	}
2671	}	3160	}
2672		3161
2673	void	3162	void
		3163	terminate (...)
		3164	CODE:
		3165	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3166
		3167	void
2674	schedule (...)	3168	schedule (...)
2675	CODE:	3169	CODE:
2676	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3170	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3171
		3172	void
		3173	schedule_to (...)
		3174	CODE:
		3175	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3176
		3177	void
		3178	cede_to (...)
		3179	CODE:
		3180	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2677		3181
2678	void	3182	void
2679	cede (...)	3183	cede (...)
2680	CODE:	3184	CODE:
2681	CORO_EXECUTE_SLF_XS (slf_init_cede);	3185	CORO_EXECUTE_SLF_XS (slf_init_cede);
2682		3186
2683	void	3187	void
2684	cede_notself (...)	3188	cede_notself (...)
2685	CODE:	3189	CODE:
2686	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3190	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3191
		3192	void
		3193	_cancel (Coro::State self)
		3194	CODE:
		3195	coro_state_destroy (aTHX_ self);
		3196	coro_call_on_destroy (aTHX_ self);
2687		3197
2688	void	3198	void
2689	_set_current (SV *current)	3199	_set_current (SV *current)
2690	PROTOTYPE: $	3200	PROTOTYPE: $
2691	CODE:	3201	CODE:
…		…
2736	CODE:	3246	CODE:
2737	RETVAL = coro_nready;	3247	RETVAL = coro_nready;
2738	OUTPUT:	3248	OUTPUT:
2739	RETVAL	3249	RETVAL
2740		3250
2741	# for async_pool speedup
2742	void	3251	void
2743	_pool_1 (SV *cb)	3252	_pool_handler (...)
2744	CODE:	3253	CODE:
2745	{	3254	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2746	HV *hv = (HV *)SvRV (coro_current);
2747	struct coro *coro = SvSTATE_hv ((SV *)hv);
2748	AV *defav = GvAV (PL_defgv);
2749	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2750	AV *invoke_av;
2751	int i, len;
2752		3255
2753	if (!invoke)	3256	void
		3257	async_pool (SV *cv, ...)
		3258	PROTOTYPE: &@
		3259	PPCODE:
		3260	{
		3261	HV *hv = (HV *)av_pop (av_async_pool);
		3262	AV *av = newAV ();
		3263	SV *cb = ST (0);
		3264	int i;
		3265
		3266	av_extend (av, items - 2);
		3267	for (i = 1; i < items; ++i)
		3268	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3269
		3270	if ((SV *)hv == &PL_sv_undef)
2754	{	3271	{
2755	SV *old = PL_diehook;	3272	PUSHMARK (SP);
2756	PL_diehook = 0;	3273	EXTEND (SP, 2);
2757	SvREFCNT_dec (old);	3274	PUSHs (sv_Coro);
2758	croak ("\3async_pool terminate\2\n");	3275	PUSHs ((SV *)cv_pool_handler);
		3276	PUTBACK;
		3277	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3278	SPAGAIN;
		3279
		3280	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2759	}	3281	}
2760		3282
2761	SvREFCNT_dec (coro->saved_deffh);
2762	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2763
2764	hv_store (hv, "desc", sizeof ("desc") - 1,
2765	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2766
2767	invoke_av = (AV *)SvRV (invoke);
2768	len = av_len (invoke_av);
2769
2770	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2771
2772	if (len > 0)
2773	{	3283	{
2774	av_fill (defav, len - 1);	3284	struct coro *coro = SvSTATE_hv (hv);
2775	for (i = 0; i < len; ++i)	3285
2776	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3286	assert (!coro->invoke_cb);
		3287	assert (!coro->invoke_av);
		3288	coro->invoke_cb = SvREFCNT_inc (cb);
		3289	coro->invoke_av = av;
2777	}	3290	}
		3291
		3292	api_ready (aTHX_ (SV *)hv);
		3293
		3294	if (GIMME_V != G_VOID)
		3295	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3296	else
		3297	SvREFCNT_dec (hv);
2778	}	3298	}
		3299
		3300	SV *
		3301	rouse_cb ()
		3302	PROTOTYPE:
		3303	CODE:
		3304	RETVAL = coro_new_rouse_cb (aTHX);
		3305	OUTPUT:
		3306	RETVAL
2779		3307
2780	void	3308	void
2781	_pool_2 (SV *cb)	3309	rouse_wait (...)
		3310	PROTOTYPE: ;$
2782	CODE:	3311	PPCODE:
2783	{	3312	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2784	HV *hv = (HV *)SvRV (coro_current);
2785	struct coro *coro = SvSTATE_hv ((SV *)hv);
2786
2787	sv_setsv (cb, &PL_sv_undef);
2788
2789	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2790	coro->saved_deffh = 0;
2791
2792	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2793	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2794	{
2795	SV *old = PL_diehook;
2796	PL_diehook = 0;
2797	SvREFCNT_dec (old);
2798	croak ("\3async_pool terminate\2\n");
2799	}
2800
2801	av_clear (GvAV (PL_defgv));
2802	hv_store (hv, "desc", sizeof ("desc") - 1,
2803	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2804
2805	coro->prio = 0;
2806
2807	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2808	api_trace (aTHX_ coro_current, 0);
2809
2810	av_push (av_async_pool, newSVsv (coro_current));
2811	}
2812		3313
2813		3314
2814	MODULE = Coro::State PACKAGE = PerlIO::cede	3315	MODULE = Coro::State PACKAGE = PerlIO::cede
2815		3316
2816	BOOT:	3317	BOOT:
…		…
2821		3322
2822	SV *	3323	SV *
2823	new (SV *klass, SV *count = 0)	3324	new (SV *klass, SV *count = 0)
2824	CODE:	3325	CODE:
2825	RETVAL = sv_bless (	3326	RETVAL = sv_bless (
2826	coro_semaphore_new (count && SvOK (count) ? SvIV (count) : 1),	3327	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2827	GvSTASH (CvGV (cv))	3328	GvSTASH (CvGV (cv))
2828	);	3329	);
2829	OUTPUT:	3330	OUTPUT:
2830	RETVAL	3331	RETVAL
2831		3332
2832	# helper for Coro::Channel	3333	# helper for Coro::Channel
2833	SV *	3334	SV *
2834	_alloc (int count)	3335	_alloc (int count)
2835	CODE:	3336	CODE:
2836	RETVAL = coro_semaphore_new (count);	3337	RETVAL = coro_waitarray_new (aTHX_ count);
2837	OUTPUT:	3338	OUTPUT:
2838	RETVAL	3339	RETVAL
2839		3340
2840	SV *	3341	SV *
2841	count (SV *self)	3342	count (SV *self)
…		…
2850	adjust = 1	3351	adjust = 1
2851	CODE:	3352	CODE:
2852	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3353	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2853		3354
2854	void	3355	void
2855	down (SV *self)	3356	down (...)
2856	ALIAS:
2857	Coro::Signal::wait = 0
2858	CODE:	3357	CODE:
2859	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3358	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
2860		3359
2861	void	3360	void
2862	wait (SV *self)	3361	wait (...)
2863	CODE:	3362	CODE:
2864	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);	3363	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2865		3364
2866	void	3365	void
2867	try (SV *self)	3366	try (SV *self)
…		…
2903		3402
2904	SV *	3403	SV *
2905	new (SV *klass)	3404	new (SV *klass)
2906	CODE:	3405	CODE:
2907	RETVAL = sv_bless (	3406	RETVAL = sv_bless (
2908	coro_semaphore_new (0),	3407	coro_waitarray_new (aTHX_ 0),
2909	GvSTASH (CvGV (cv))	3408	GvSTASH (CvGV (cv))
2910	);	3409	);
2911	OUTPUT:	3410	OUTPUT:
2912	RETVAL	3411	RETVAL
2913		3412
2914	void	3413	void
2915	broadcast (SV *self, int adjust = 1)	3414	wait (...)
2916	CODE:	3415	CODE:
		3416	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3417
		3418	void
		3419	broadcast (SV *self)
		3420	CODE:
		3421	{
		3422	AV *av = (AV *)SvRV (self);
		3423	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3424	}
		3425
		3426	void
		3427	send (SV *self)
		3428	CODE:
2917	{	3429	{
2918	AV *av = (AV *)SvRV (self);	3430	AV *av = (AV *)SvRV (self);
2919	SvIVX (AvARRAY (av)[0]) = 0; /* not necessary, but gives me fuzzy warm feelings */	3431
2920	coro_semaphore_adjust (aTHX_ av, AvFILLp (av) + 1 - 1);	3432	if (AvFILLp (av))
		3433	coro_signal_wake (aTHX_ av, 1);
		3434	else
2921	SvIVX (AvARRAY (av)[0]) = 0; /* necessary */	3435	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
2922	}	3436	}
		3437
		3438	IV
		3439	awaited (SV *self)
		3440	CODE:
		3441	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3442	OUTPUT:
		3443	RETVAL
2923		3444
2924		3445
2925	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3446	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2926		3447
2927	BOOT:	3448	BOOT:
…		…
2955		3476
2956	void	3477	void
2957	_register (char *target, char *proto, SV *req)	3478	_register (char *target, char *proto, SV *req)
2958	CODE:	3479	CODE:
2959	{	3480	{
2960	HV *st;	3481	CV *req_cv = coro_sv_2cv (aTHX_ req);
2961	GV *gvp;
2962	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2963	/* newXSproto doesn't return the CV on 5.8 */	3482	/* newXSproto doesn't return the CV on 5.8 */
2964	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3483	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2965	sv_setpv ((SV *)slf_cv, proto);	3484	sv_setpv ((SV *)slf_cv, proto);
2966	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3485	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2967	}	3486	}

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