[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.157 by root, Fri Sep 21 02:01:13 2007 UTC vs.
Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC

…		…
75	/* 5.8.7 */	75	/* 5.8.7 */
76	#ifndef SvRV_set	76	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	78	#endif
79		79
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84	#ifndef newSV
		85	# define newSV(l) NEWSV(0,l)
		86	#endif
		87
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	89	# undef CORO_STACKGUARD
82	#endif	90	#endif
83		91
84	#ifndef CORO_STACKGUARD	92	#ifndef CORO_STACKGUARD
…		…
88	/* prefer perl internal functions over our own? */	96	/* prefer perl internal functions over our own? */
89	#ifndef CORO_PREFER_PERL_FUNCTIONS	97	#ifndef CORO_PREFER_PERL_FUNCTIONS
90	# define CORO_PREFER_PERL_FUNCTIONS 0	98	# define CORO_PREFER_PERL_FUNCTIONS 0
91	#endif	99	#endif
92		100
93	/* The next macro should declare a variable stacklevel that contains and approximation	101	/* The next macros try to return the current stack pointer, in an as
94	* to the current C stack pointer. Its property is that it changes with each call	102	* portable way as possible. */
95	* and should be unique. */
96	#define dSTACKLEVEL int stacklevel	103	#define dSTACKLEVEL volatile char stacklevel
97	#define STACKLEVEL ((void *)&stacklevel)	104	#define STACKLEVEL ((void *)&stacklevel)
98		105
99	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
100		107
101	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
102	# define attribute(x) __attribute__(x)	109	# define attribute(x) __attribute__(x)
103	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	110	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		111	# define expect(expr,value) __builtin_expect ((expr),(value))
104	#else	112	#else
105	# define attribute(x)	113	# define attribute(x)
106	# define BARRIER	114	# define BARRIER
		115	# define expect(expr,value) (expr)
107	#endif	116	#endif
		117
		118	#define expect_false(expr) expect ((expr) != 0, 0)
		119	#define expect_true(expr) expect ((expr) != 0, 1)
108		120
109	#define NOINLINE attribute ((noinline))	121	#define NOINLINE attribute ((noinline))
110		122
111	#include "CoroAPI.h"	123	#include "CoroAPI.h"
112		124
…		…
133	static AV main_mainstack; / used to differentiate between $main and others */	145	static AV main_mainstack; / used to differentiate between $main and others */
134	static JMPENV *main_top_env;	146	static JMPENV *main_top_env;
135	static HV coro_state_stash, coro_stash;	147	static HV coro_state_stash, coro_stash;
136	static SV coro_mortal; / will be freed after next transfer */	148	static SV coro_mortal; / will be freed after next transfer */
137		149
		150	static GV irsgv; / $/ */
		151	static GV stdoutgv; / STDOUT /
		152
		153	/* async_pool helper stuff */
		154	static SV *sv_pool_rss;
		155	static SV *sv_pool_size;
		156	static AV *av_async_pool;
		157
138	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
139	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
		160
		161	enum {
		162	CC_MAPPED = 0x01,
		163	CC_NOREUSE = 0x02, /* throw this away after tracing */
		164	CC_TRACE = 0x04,
		165	CC_TRACE_SUB = 0x08, /* trace sub calls */
		166	CC_TRACE_LINE = 0x10, /* trace each statement */
		167	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		168	};
140		169
141	/* this is a structure representing a c-level coroutine */	170	/* this is a structure representing a c-level coroutine */
142	typedef struct coro_cctx {	171	typedef struct coro_cctx {
143	struct coro_cctx *next;	172	struct coro_cctx *next;
144		173
…		…
153	coro_context cctx;	182	coro_context cctx;
154		183
155	#if CORO_USE_VALGRIND	184	#if CORO_USE_VALGRIND
156	int valgrind_id;	185	int valgrind_id;
157	#endif	186	#endif
158	char inuse, mapped;	187	unsigned char flags;
159	} coro_cctx;	188	} coro_cctx;
160		189
161	enum {	190	enum {
162	CF_RUNNING = 0x0001, /* coroutine is running */	191	CF_RUNNING = 0x0001, /* coroutine is running */
163	CF_READY = 0x0002, /* coroutine is ready */	192	CF_READY = 0x0002, /* coroutine is ready */
…		…
171	coro_cctx *cctx;	200	coro_cctx *cctx;
172		201
173	/* data associated with this coroutine (initial args) */	202	/* data associated with this coroutine (initial args) */
174	AV *args;	203	AV *args;
175	int refcnt;	204	int refcnt;
176	int save; /* CORO_SAVE flags */
177	int flags; /* CF_ flags */	205	int flags; /* CF_ flags */
178		206
179	/* optionally saved, might be zero */	207	/* optionally saved, might be zero */
180	AV defav; / @_ */	208	AV defav; / @_ */
181	SV defsv; / $_ */	209	SV defsv; / $_ */
182	SV errsv; / $@ */	210	SV errsv; / $@ */
183	GV deffh; / default filehandle */	211	SV deffh; / default filehandle */
184	SV irssv; / $/ */	212	SV irssv; / $/ */
185	SV irssv_sv; / real $/ cache */	213	SV irssv_sv; / real $/ cache */
186		214
187	#define VAR(name,type) type name;	215	#define VAR(name,type) type name;
188	# include "state.h"	216	# include "state.h"
189	#undef VAR	217	#undef VAR
190		218
		219	/* statistics */
		220	int usecount; /* number of transfers to this coro */
		221
191	/* coro process data */	222	/* coro process data */
192	int prio;	223	int prio;
		224	//SV *throw;
		225
		226	/* async_pool */
		227	SV *saved_deffh;
193		228
194	/* linked list */	229	/* linked list */
195	struct coro next, prev;	230	struct coro next, prev;
196	HV hv; / the perl hash associated with this coro, if any */	231	HV hv; / the perl hash associated with this coro, if any */
197	};	232	};
…		…
286	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
287	? SvMAGIC (cv) \	322	? SvMAGIC (cv) \
288	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
289	: 0	324	: 0
290		325
		326	static struct coro *
		327	SvSTATE_ (pTHX_ SV *coro)
		328	{
		329	HV *stash;
		330	MAGIC *mg;
		331
		332	if (SvROK (coro))
		333	coro = SvRV (coro);
		334
		335	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		336	croak ("Coro::State object required");
		337
		338	stash = SvSTASH (coro);
		339	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		340	{
		341	/* very slow, but rare, check */
		342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		343	croak ("Coro::State object required");
		344	}
		345
		346	mg = CORO_MAGIC (coro);
		347	return (struct coro *)mg->mg_ptr;
		348	}
		349
		350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		351
291	/* the next two functions merely cache the padlists */	352	/* the next two functions merely cache the padlists */
292	static void	353	static void
293	get_padlist (pTHX_ CV *cv)	354	get_padlist (pTHX_ CV *cv)
294	{	355	{
295	MAGIC *mg = CORO_MAGIC (cv);	356	MAGIC *mg = CORO_MAGIC (cv);
296	AV *av;	357	AV *av;
297		358
298	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
299	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
300	else	361	else
301	{	362	{
302	#if CORO_PREFER_PERL_FUNCTIONS	363	#if CORO_PREFER_PERL_FUNCTIONS
303	/* this is probably cleaner, but also slower? */	364	/* this is probably cleaner, but also slower? */
…		…
315	put_padlist (pTHX_ CV *cv)	376	put_padlist (pTHX_ CV *cv)
316	{	377	{
317	MAGIC *mg = CORO_MAGIC (cv);	378	MAGIC *mg = CORO_MAGIC (cv);
318	AV *av;	379	AV *av;
319		380
320	if (!mg)	381	if (expect_false (!mg))
321	{	382	{
322	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	383	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
323	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	384	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
324	mg->mg_virtual = &vtbl_coro;	385	mg->mg_virtual = &vtbl_coro;
325	mg->mg_obj = (SV *)newAV ();	386	mg->mg_obj = (SV *)newAV ();
326	}	387	}
327		388
328	av = (AV *)mg->mg_obj;	389	av = (AV *)mg->mg_obj;
329		390
330	if (AvFILLp (av) >= AvMAX (av))	391	if (expect_false (AvFILLp (av) >= AvMAX (av)))
331	av_extend (av, AvMAX (av) + 1);	392	av_extend (av, AvMAX (av) + 1);
332		393
333	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	394	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
334	}	395	}
335		396
336	/ load & save, init *****************************************************/	397	/ load & save, init *****************************************************/
337
338	#define SB do {
339	#define SE } while (0)
340
341	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
342		398
343	static void	399	static void
344	load_perl (pTHX_ Coro__State c)	400	load_perl (pTHX_ Coro__State c)
345	{	401	{
346	#define VAR(name,type) PL_ ## name = c->name;	402	#define VAR(name,type) PL_ ## name = c->name;
347	# include "state.h"	403	# include "state.h"
348	#undef VAR	404	#undef VAR
349		405
350	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	406	GvSV (PL_defgv) = c->defsv;
351	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	407	GvAV (PL_defgv) = c->defav;
352	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	408	GvSV (PL_errgv) = c->errsv;
353	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	409	GvSV (irsgv) = c->irssv_sv;
354
355	if (c->irssv)
356	{
357	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
358	{
359	SvREFCNT_dec (c->irssv);
360	c->irssv = 0;
361	}
362	else
363	{
364	REPLACE_SV (PL_rs, c->irssv);
365	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
366	sv_setsv (c->irssv_sv, PL_rs);
367	}
368	}
369		410
370	{	411	{
371	dSP;	412	dSP;
372	CV *cv;	413	CV *cv;
373		414
374	/* now do the ugly restore mess */	415	/* now do the ugly restore mess */
375	while ((cv = (CV *)POPs))	416	while (expect_true (cv = (CV *)POPs))
376	{	417	{
377	put_padlist (aTHX_ cv); /* mark this padlist as available */	418	put_padlist (aTHX_ cv); /* mark this padlist as available */
378	CvDEPTH (cv) = PTR2IV (POPs);	419	CvDEPTH (cv) = PTR2IV (POPs);
379	CvPADLIST (cv) = (AV *)POPs;	420	CvPADLIST (cv) = (AV *)POPs;
380	}	421	}
…		…
399		440
400	XPUSHs (Nullsv);	441	XPUSHs (Nullsv);
401	/* this loop was inspired by pp_caller */	442	/* this loop was inspired by pp_caller */
402	for (;;)	443	for (;;)
403	{	444	{
404	while (cxix >= 0)	445	while (expect_true (cxix >= 0))
405	{	446	{
406	PERL_CONTEXT *cx = &ccstk[cxix--];	447	PERL_CONTEXT *cx = &ccstk[cxix--];
407		448
408	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	449	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
409	{	450	{
410	CV *cv = cx->blk_sub.cv;	451	CV *cv = cx->blk_sub.cv;
411		452
412	if (CvDEPTH (cv))	453	if (expect_true (CvDEPTH (cv)))
413	{	454	{
414	EXTEND (SP, 3);	455	EXTEND (SP, 3);
415	PUSHs ((SV *)CvPADLIST (cv));	456	PUSHs ((SV *)CvPADLIST (cv));
416	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
417	PUSHs ((SV *)cv);	458	PUSHs ((SV *)cv);
…		…
420	get_padlist (aTHX_ cv);	461	get_padlist (aTHX_ cv);
421	}	462	}
422	}	463	}
423	}	464	}
424		465
425	if (top_si->si_type == PERLSI_MAIN)	466	if (expect_true (top_si->si_type == PERLSI_MAIN))
426	break;	467	break;
427		468
428	top_si = top_si->si_prev;	469	top_si = top_si->si_prev;
429	ccstk = top_si->si_cxstack;	470	ccstk = top_si->si_cxstack;
430	cxix = top_si->si_cxix;	471	cxix = top_si->si_cxix;
431	}	472	}
432		473
433	PUTBACK;	474	PUTBACK;
434	}	475	}
435		476
436	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	477	c->defav = GvAV (PL_defgv);
437	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	478	c->defsv = DEFSV;
438	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	479	c->errsv = ERRSV;
439	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	480	c->irssv_sv = GvSV (irsgv);
440	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
441		481
442	#define VAR(name,type)c->name = PL_ ## name;	482	#define VAR(name,type)c->name = PL_ ## name;
443	# include "state.h"	483	# include "state.h"
444	#undef VAR	484	#undef VAR
445	}	485	}
…		…
498	* destroy the stacks, the callchain etc...	538	* destroy the stacks, the callchain etc...
499	*/	539	*/
500	static void	540	static void
501	coro_destroy_stacks (pTHX)	541	coro_destroy_stacks (pTHX)
502	{	542	{
503	if (!IN_DESTRUCT)
504	{
505	/* restore all saved variables and stuff */
506	LEAVE_SCOPE (0);
507	assert (PL_tmps_floor == -1);
508
509	/* free all temporaries */
510	FREETMPS;
511	assert (PL_tmps_ix == -1);
512
513	/* unwind all extra stacks */
514	POPSTACK_TO (PL_mainstack);
515
516	/* unwind main stack */
517	dounwind (-1);
518	}
519
520	while (PL_curstackinfo->si_next)	543	while (PL_curstackinfo->si_next)
521	PL_curstackinfo = PL_curstackinfo->si_next;	544	PL_curstackinfo = PL_curstackinfo->si_next;
522		545
523	while (PL_curstackinfo)	546	while (PL_curstackinfo)
524	{	547	{
…		…
540	Safefree (PL_retstack);	563	Safefree (PL_retstack);
541	#endif	564	#endif
542	}	565	}
543		566
544	static size_t	567	static size_t
545	coro_rss (struct coro *coro)	568	coro_rss (pTHX_ struct coro *coro)
546	{	569	{
547	size_t rss = sizeof (coro);	570	size_t rss = sizeof (*coro);
548		571
549	if (coro->mainstack)	572	if (coro->mainstack)
550	{	573	{
551	if (coro->flags & CF_RUNNING)	574	if (coro->flags & CF_RUNNING)
552	{	575	{
…		…
554	# include "state.h"	577	# include "state.h"
555	#undef VAR	578	#undef VAR
556	}	579	}
557		580
558	rss += sizeof (coro->curstackinfo);	581	rss += sizeof (coro->curstackinfo);
559	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);	582	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
560	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	583	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
561	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
562	rss += coro->tmps_max * sizeof (SV *);	585	rss += coro->tmps_max * sizeof (SV *);
563	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
564	rss += coro->scopestack_max * sizeof (I32);	587	rss += coro->scopestack_max * sizeof (I32);
565	rss += coro->savestack_max * sizeof (ANY);	588	rss += coro->savestack_max * sizeof (ANY);
566		589
…		…
573	}	596	}
574		597
575	/ coroutine stack handling **********************************************/	598	/ coroutine stack handling **********************************************/
576		599
577	static void	600	static void
578	setup_coro (pTHX_ struct coro *coro)	601	coro_setup (pTHX_ struct coro *coro)
579	{	602	{
580	/*	603	/*
581	* emulate part of the perl startup here.	604	* emulate part of the perl startup here.
582	*/	605	*/
583	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
584		607
		608	PL_runops = RUNOPS_DEFAULT;
585	PL_curcop = &PL_compiling;	609	PL_curcop = &PL_compiling;
586	PL_in_eval = EVAL_NULL;	610	PL_in_eval = EVAL_NULL;
587	PL_comppad = 0;	611	PL_comppad = 0;
588	PL_curpm = 0;	612	PL_curpm = 0;
589	PL_localizing = 0;	613	PL_localizing = 0;
590	PL_dirty = 0;	614	PL_dirty = 0;
591	PL_restartop = 0;	615	PL_restartop = 0;
		616
		617	GvSV (PL_defgv) = newSV (0);
		618	GvAV (PL_defgv) = coro->args; coro->args = 0;
		619	GvSV (PL_errgv) = newSV (0);
		620	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		621	PL_rs = newSVsv (GvSV (irsgv));
		622	PL_defoutgv = SvREFCNT_inc (stdoutgv);
		623
		624	ENTER; /* necessary e.g. for dounwind */
592		625
593	{	626	{
594	dSP;	627	dSP;
595	LOGOP myop;	628	LOGOP myop;
596		629
597	SvREFCNT_dec (GvAV (PL_defgv));
598	GvAV (PL_defgv) = coro->args; coro->args = 0;
599
600	Zero (&myop, 1, LOGOP);	630	Zero (&myop, 1, LOGOP);
601	myop.op_next = Nullop;	631	myop.op_next = Nullop;
602	myop.op_flags = OPf_WANT_VOID;	632	myop.op_flags = OPf_WANT_VOID;
603		633
604	PUSHMARK (SP);	634	PUSHMARK (SP);
605	XPUSHs (av_shift (GvAV (PL_defgv)));	635	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
606	PUTBACK;	636	PUTBACK;
607	PL_op = (OP *)&myop;	637	PL_op = (OP *)&myop;
608	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	638	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
609	SPAGAIN;	639	SPAGAIN;
610	}	640	}
		641	}
611		642
612	ENTER; /* necessary e.g. for dounwind */	643	static void
		644	coro_destroy (pTHX_ struct coro *coro)
		645	{
		646	if (!IN_DESTRUCT)
		647	{
		648	/* restore all saved variables and stuff */
		649	LEAVE_SCOPE (0);
		650	assert (PL_tmps_floor == -1);
		651
		652	/* free all temporaries */
		653	FREETMPS;
		654	assert (PL_tmps_ix == -1);
		655
		656	/* unwind all extra stacks */
		657	POPSTACK_TO (PL_mainstack);
		658
		659	/* unwind main stack */
		660	dounwind (-1);
		661	}
		662
		663	SvREFCNT_dec (GvSV (PL_defgv));
		664	SvREFCNT_dec (GvAV (PL_defgv));
		665	SvREFCNT_dec (GvSV (PL_errgv));
		666	SvREFCNT_dec (PL_defoutgv);
		667	SvREFCNT_dec (PL_rs);
		668	SvREFCNT_dec (GvSV (irsgv));
		669
		670	SvREFCNT_dec (coro->saved_deffh);
		671	//SvREFCNT_dec (coro->throw);
		672
		673	coro_destroy_stacks (aTHX);
613	}	674	}
614		675
615	static void	676	static void
616	free_coro_mortal (pTHX)	677	free_coro_mortal (pTHX)
617	{	678	{
618	if (coro_mortal)	679	if (expect_true (coro_mortal))
619	{	680	{
620	SvREFCNT_dec (coro_mortal);	681	SvREFCNT_dec (coro_mortal);
621	coro_mortal = 0;	682	coro_mortal = 0;
622	}	683	}
		684	}
		685
		686	static int
		687	runops_trace (pTHX)
		688	{
		689	COP *oldcop = 0;
		690	int oldcxix = -2;
		691	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		692	coro_cctx *cctx = coro->cctx;
		693
		694	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		695	{
		696	PERL_ASYNC_CHECK ();
		697
		698	if (cctx->flags & CC_TRACE_ALL)
		699	{
		700	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		701	{
		702	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		703	SV bot, top;
		704	AV av = newAV (); / return values */
		705	SV **cb;
		706	dSP;
		707
		708	GV *gv = CvGV (cx->blk_sub.cv);
		709	SV *fullname = sv_2mortal (newSV (0));
		710	if (isGV (gv))
		711	gv_efullname3 (fullname, gv, 0);
		712
		713	bot = PL_stack_base + cx->blk_oldsp + 1;
		714	top = cx->blk_gimme == G_ARRAY ? SP + 1
		715	: cx->blk_gimme == G_SCALAR ? bot + 1
		716	: bot;
		717
		718	av_extend (av, top - bot);
		719	while (bot < top)
		720	av_push (av, SvREFCNT_inc (*bot++));
		721
		722	PL_runops = RUNOPS_DEFAULT;
		723	ENTER;
		724	SAVETMPS;
		725	EXTEND (SP, 3);
		726	PUSHMARK (SP);
		727	PUSHs (&PL_sv_no);
		728	PUSHs (fullname);
		729	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		730	PUTBACK;
		731	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		732	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		733	SPAGAIN;
		734	FREETMPS;
		735	LEAVE;
		736	PL_runops = runops_trace;
		737	}
		738
		739	if (oldcop != PL_curcop)
		740	{
		741	oldcop = PL_curcop;
		742
		743	if (PL_curcop != &PL_compiling)
		744	{
		745	SV **cb;
		746
		747	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		748	{
		749	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		750
		751	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		752	{
		753	runops_proc_t old_runops = PL_runops;
		754	dSP;
		755	GV *gv = CvGV (cx->blk_sub.cv);
		756	SV *fullname = sv_2mortal (newSV (0));
		757
		758	if (isGV (gv))
		759	gv_efullname3 (fullname, gv, 0);
		760
		761	PL_runops = RUNOPS_DEFAULT;
		762	ENTER;
		763	SAVETMPS;
		764	EXTEND (SP, 3);
		765	PUSHMARK (SP);
		766	PUSHs (&PL_sv_yes);
		767	PUSHs (fullname);
		768	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		769	PUTBACK;
		770	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		771	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		772	SPAGAIN;
		773	FREETMPS;
		774	LEAVE;
		775	PL_runops = runops_trace;
		776	}
		777
		778	oldcxix = cxstack_ix;
		779	}
		780
		781	if (cctx->flags & CC_TRACE_LINE)
		782	{
		783	dSP;
		784
		785	PL_runops = RUNOPS_DEFAULT;
		786	ENTER;
		787	SAVETMPS;
		788	EXTEND (SP, 3);
		789	PL_runops = RUNOPS_DEFAULT;
		790	PUSHMARK (SP);
		791	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		792	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		793	PUTBACK;
		794	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		795	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		796	SPAGAIN;
		797	FREETMPS;
		798	LEAVE;
		799	PL_runops = runops_trace;
		800	}
		801	}
		802	}
		803	}
		804	}
		805
		806	TAINT_NOT;
		807	return 0;
623	}	808	}
624		809
625	/* inject a fake call to Coro::State::_cctx_init into the execution */	810	/* inject a fake call to Coro::State::_cctx_init into the execution */
626	/* _cctx_init should be careful, as it could be called at almost any time */	811	/* _cctx_init should be careful, as it could be called at almost any time */
627	/* during execution of a perl program */	812	/* during execution of a perl program */
628	static void NOINLINE	813	static void NOINLINE
629	prepare_cctx (pTHX_ coro_cctx *cctx)	814	prepare_cctx (pTHX_ coro_cctx *cctx)
630	{	815	{
631	dSP;	816	dSP;
632	LOGOP myop;	817	LOGOP myop;
		818
		819	PL_top_env = &PL_start_env;
		820
		821	if (cctx->flags & CC_TRACE)
		822	PL_runops = runops_trace;
633		823
634	Zero (&myop, 1, LOGOP);	824	Zero (&myop, 1, LOGOP);
635	myop.op_next = PL_op;	825	myop.op_next = PL_op;
636	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	826	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
637		827
…		…
654	dTHX;	844	dTHX;
655		845
656	/* coro_run is the alternative tail of transfer(), so unlock here. */	846	/* coro_run is the alternative tail of transfer(), so unlock here. */
657	UNLOCK;	847	UNLOCK;
658		848
659	PL_top_env = &PL_start_env;	849	/* we now skip the entersub that lead to transfer() */
		850	PL_op = PL_op->op_next;
660		851
661	/* inject a fake subroutine call to cctx_init */	852	/* inject a fake subroutine call to cctx_init */
662	prepare_cctx (aTHX_ (coro_cctx *)arg);	853	prepare_cctx (aTHX_ (coro_cctx *)arg);
663		854
664	/* somebody or something will hit me for both perl_run and PL_restartop */	855	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
698	# if CORO_STACKGUARD	889	# if CORO_STACKGUARD
699	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	890	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
700	# endif	891	# endif
701	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	892	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
702	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	893	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
703	cctx->mapped = 1;	894	cctx->flags \|= CC_MAPPED;
704	}	895	}
705	else	896	else
706	#endif	897	#endif
707	{	898	{
708	cctx->ssize = coro_stacksize * (long)sizeof (long);	899	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
735	#if CORO_USE_VALGRIND	926	#if CORO_USE_VALGRIND
736	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	927	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
737	#endif	928	#endif
738		929
739	#if HAVE_MMAP	930	#if HAVE_MMAP
740	if (cctx->mapped)	931	if (cctx->flags & CC_MAPPED)
741	munmap (cctx->sptr, cctx->ssize);	932	munmap (cctx->sptr, cctx->ssize);
742	else	933	else
743	#endif	934	#endif
744	Safefree (cctx->sptr);	935	Safefree (cctx->sptr);
745		936
746	Safefree (cctx);	937	Safefree (cctx);
747	}	938	}
748		939
		940	/* wether this cctx should be destructed */
		941	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		942
749	static coro_cctx *	943	static coro_cctx *
750	cctx_get (pTHX)	944	cctx_get (pTHX)
751	{	945	{
752	while (cctx_first)	946	while (expect_true (cctx_first))
753	{	947	{
754	coro_cctx *cctx = cctx_first;	948	coro_cctx *cctx = cctx_first;
755	cctx_first = cctx->next;	949	cctx_first = cctx->next;
756	--cctx_idle;	950	--cctx_idle;
757		951
758	if (cctx->ssize >= coro_stacksize)	952	if (expect_true (!CCTX_EXPIRED (cctx)))
759	return cctx;	953	return cctx;
760		954
761	cctx_destroy (cctx);	955	cctx_destroy (cctx);
762	}	956	}
763		957
764	PL_op = PL_op->op_next;
765	return cctx_new ();	958	return cctx_new ();
766	}	959	}
767		960
768	static void	961	static void
769	cctx_put (coro_cctx *cctx)	962	cctx_put (coro_cctx *cctx)
770	{	963	{
771	/* free another cctx if overlimit */	964	/* free another cctx if overlimit */
772	if (cctx_idle >= MAX_IDLE_CCTX)	965	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
773	{	966	{
774	coro_cctx *first = cctx_first;	967	coro_cctx *first = cctx_first;
775	cctx_first = first->next;	968	cctx_first = first->next;
776	--cctx_idle;	969	--cctx_idle;
777		970
778	assert (!first->inuse);
779	cctx_destroy (first);	971	cctx_destroy (first);
780	}	972	}
781		973
782	++cctx_idle;	974	++cctx_idle;
783	cctx->next = cctx_first;	975	cctx->next = cctx_first;
784	cctx_first = cctx;	976	cctx_first = cctx;
785	}	977	}
786		978
787	/ coroutine switching ***************************************************/	979	/ coroutine switching ***************************************************/
788		980
789	/* never call directly, always through the coro_state_transfer global variable */	981	static void
		982	transfer_check (pTHX_ struct coro prev, struct coro next)
		983	{
		984	if (expect_true (prev != next))
		985	{
		986	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		987	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		988
		989	if (expect_false (next->flags & CF_RUNNING))
		990	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		991
		992	if (expect_false (next->flags & CF_DESTROYED))
		993	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		994
		995	if (expect_false (PL_lex_state != LEX_NOTPARSING))
		996	croak ("Coro::State::transfer called while parsing, but this is not supported");
		997	}
		998	}
		999
		1000	/* always use the TRANSFER macro */
790	static void NOINLINE	1001	static void NOINLINE
791	transfer (pTHX_ struct coro prev, struct coro next)	1002	transfer (pTHX_ struct coro prev, struct coro next)
792	{	1003	{
793	dSTACKLEVEL;	1004	dSTACKLEVEL;
794		1005
795	/* sometimes transfer is only called to set idle_sp */	1006	/* sometimes transfer is only called to set idle_sp */
796	if (!next)	1007	if (expect_false (!next))
797	{	1008	{
798	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1009	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
799	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1010	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
800	}	1011	}
801	else if (prev != next)	1012	else if (expect_true (prev != next))
802	{	1013	{
803	coro_cctx *prev__cctx;	1014	coro_cctx *prev__cctx;
804		1015
805	if (prev->flags & CF_NEW)	1016	if (expect_false (prev->flags & CF_NEW))
806	{	1017	{
807	/* create a new empty context */	1018	/* create a new empty context */
808	Newz (0, prev->cctx, 1, coro_cctx);	1019	Newz (0, prev->cctx, 1, coro_cctx);
809	prev->cctx->inuse = 1;
810	prev->flags &= ~CF_NEW;	1020	prev->flags &= ~CF_NEW;
811	prev->flags \|= CF_RUNNING;	1021	prev->flags \|= CF_RUNNING;
812	}	1022	}
813		1023
814	/TODO: must not croak here /
815	if (!prev->flags & CF_RUNNING)
816	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
817
818	if (next->flags & CF_RUNNING)
819	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
820
821	if (next->flags & CF_DESTROYED)
822	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
823
824	prev->flags &= ~CF_RUNNING;	1024	prev->flags &= ~CF_RUNNING;
825	next->flags \|= CF_RUNNING;	1025	next->flags \|= CF_RUNNING;
826		1026
827	LOCK;	1027	LOCK;
828		1028
829	if (next->flags & CF_NEW)	1029	if (expect_false (next->flags & CF_NEW))
830	{	1030	{
831	/* need to start coroutine */	1031	/* need to start coroutine */
832	next->flags &= ~CF_NEW;	1032	next->flags &= ~CF_NEW;
833	/* first get rid of the old state */	1033	/* first get rid of the old state */
834	save_perl (aTHX_ prev);	1034	save_perl (aTHX_ prev);
835	/* setup coroutine call */	1035	/* setup coroutine call */
836	setup_coro (aTHX_ next);	1036	coro_setup (aTHX_ next);
837	/* need a new stack */
838	assert (!next->cctx);
839	}	1037	}
840	else	1038	else
841	{	1039	{
842	/* coroutine already started */	1040	/* coroutine already started */
843	save_perl (aTHX_ prev);	1041	save_perl (aTHX_ prev);
…		…
845	}	1043	}
846		1044
847	prev__cctx = prev->cctx;	1045	prev__cctx = prev->cctx;
848		1046
849	/* possibly "free" the cctx */	1047	/* possibly "free" the cctx */
850	if (prev__cctx->idle_sp == STACKLEVEL)	1048	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
851	{	1049	{
852	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1050	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
853	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1051	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
854		1052
855	prev->cctx = 0;	1053	prev->cctx = 0;
856		1054
		1055	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1056	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1057	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1058	next->cctx = cctx_get (aTHX);
		1059
857	cctx_put (prev__cctx);	1060	cctx_put (prev__cctx);
858	prev__cctx->inuse = 0;
859	}	1061	}
860		1062
		1063	++next->usecount;
		1064
861	if (!next->cctx)	1065	if (expect_true (!next->cctx))
862	{
863	next->cctx = cctx_get (aTHX);	1066	next->cctx = cctx_get (aTHX);
864	assert (!next->cctx->inuse);
865	next->cctx->inuse = 1;
866	}
867		1067
868	if (prev__cctx != next->cctx)	1068	if (expect_false (prev__cctx != next->cctx))
869	{	1069	{
870	prev__cctx->top_env = PL_top_env;	1070	prev__cctx->top_env = PL_top_env;
871	PL_top_env = next->cctx->top_env;	1071	PL_top_env = next->cctx->top_env;
872	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1072	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
873	}	1073	}
…		…
881	{	1081	{
882	struct coro prev, next;	1082	struct coro prev, next;
883	};	1083	};
884		1084
885	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1085	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1086	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
886		1087
887	/ high level stuff ******************************************************/	1088	/ high level stuff ******************************************************/
888		1089
889	static int	1090	static int
890	coro_state_destroy (pTHX_ struct coro *coro)	1091	coro_state_destroy (pTHX_ struct coro *coro)
…		…
907		1108
908	if (coro->mainstack && coro->mainstack != main_mainstack)	1109	if (coro->mainstack && coro->mainstack != main_mainstack)
909	{	1110	{
910	struct coro temp;	1111	struct coro temp;
911		1112
912	assert (!(coro->flags & CF_RUNNING));
913
914	Zero (&temp, 1, struct coro);
915	temp.save = CORO_SAVE_ALL;
916
917	if (coro->flags & CF_RUNNING)	1113	if (coro->flags & CF_RUNNING)
918	croak ("FATAL: tried to destroy currently running coroutine");	1114	croak ("FATAL: tried to destroy currently running coroutine");
919		1115
920	save_perl (aTHX_ &temp);	1116	save_perl (aTHX_ &temp);
921	load_perl (aTHX_ coro);	1117	load_perl (aTHX_ coro);
922		1118
923	coro_destroy_stacks (aTHX);	1119	coro_destroy (aTHX_ coro);
924		1120
925	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1121	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
926		1122
927	coro->mainstack = 0;	1123	coro->mainstack = 0;
928	}	1124	}
…		…
973	#else	1169	#else
974	# define MGf_DUP 0	1170	# define MGf_DUP 0
975	#endif	1171	#endif
976	};	1172	};
977		1173
978	static struct coro *
979	SvSTATE_ (pTHX_ SV *coro)
980	{
981	HV *stash;
982	MAGIC *mg;
983
984	if (SvROK (coro))
985	coro = SvRV (coro);
986
987	stash = SvSTASH (coro);
988	if (stash != coro_stash && stash != coro_state_stash)
989	{
990	/* very slow, but rare, check */
991	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
992	croak ("Coro::State object required");
993	}
994
995	mg = CORO_MAGIC (coro);
996	return (struct coro *)mg->mg_ptr;
997	}
998
999	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
1000
1001	static void	1174	static void
1002	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1175	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
1003	{	1176	{
1004	ta->prev = SvSTATE (prev_sv);	1177	ta->prev = SvSTATE (prev_sv);
1005	ta->next = SvSTATE (next_sv);	1178	ta->next = SvSTATE (next_sv);
		1179	TRANSFER_CHECK (*ta);
1006	}	1180	}
1007		1181
1008	static void	1182	static void
1009	api_transfer (SV prev_sv, SV next_sv)	1183	api_transfer (SV prev_sv, SV next_sv)
1010	{	1184	{
1011	dTHX;	1185	dTHX;
1012	struct transfer_args ta;	1186	struct transfer_args ta;
1013		1187
1014	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1188	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1015	TRANSFER (ta);	1189	TRANSFER (ta);
1016	}
1017
1018	static int
1019	api_save (SV *coro_sv, int new_save)
1020	{
1021	dTHX;
1022	struct coro *coro = SvSTATE (coro_sv);
1023	int old_save = coro->save;
1024
1025	if (new_save >= 0)
1026	coro->save = new_save;
1027
1028	return old_save;
1029	}	1190	}
1030		1191
1031	/ Coro ******************************************************************/	1192	/ Coro ******************************************************************/
1032		1193
1033	static void	1194	static void
…		…
1092	{	1253	{
1093	LOCK;	1254	LOCK;
1094	next_sv = coro_deq (aTHX_ PRIO_MIN);	1255	next_sv = coro_deq (aTHX_ PRIO_MIN);
1095		1256
1096	/* nothing to schedule: call the idle handler */	1257	/* nothing to schedule: call the idle handler */
1097	if (!next_sv)	1258	if (expect_false (!next_sv))
1098	{	1259	{
1099	dSP;	1260	dSP;
1100	UNLOCK;	1261	UNLOCK;
1101		1262
1102	ENTER;	1263	ENTER;
…		…
1112	}	1273	}
1113		1274
1114	ta->next = SvSTATE (next_sv);	1275	ta->next = SvSTATE (next_sv);
1115		1276
1116	/* cannot transfer to destroyed coros, skip and look for next */	1277	/* cannot transfer to destroyed coros, skip and look for next */
1117	if (ta->next->flags & CF_DESTROYED)	1278	if (expect_false (ta->next->flags & CF_DESTROYED))
1118	{	1279	{
1119	UNLOCK;	1280	UNLOCK;
1120	SvREFCNT_dec (next_sv);	1281	SvREFCNT_dec (next_sv);
1121	/* coro_nready is already taken care of by destroy */	1282	/* coro_nready is already taken care of by destroy */
1122	continue;	1283	continue;
…		…
1127	break;	1288	break;
1128	}	1289	}
1129		1290
1130	/* free this only after the transfer */	1291	/* free this only after the transfer */
1131	prev_sv = SvRV (coro_current);	1292	prev_sv = SvRV (coro_current);
1132	SvRV_set (coro_current, next_sv);
1133	ta->prev = SvSTATE (prev_sv);	1293	ta->prev = SvSTATE (prev_sv);
1134		1294	TRANSFER_CHECK (*ta);
1135	assert (ta->next->flags & CF_READY);	1295	assert (ta->next->flags & CF_READY);
1136	ta->next->flags &= ~CF_READY;	1296	ta->next->flags &= ~CF_READY;
		1297	SvRV_set (coro_current, next_sv);
1137		1298
1138	LOCK;	1299	LOCK;
1139	free_coro_mortal (aTHX);	1300	free_coro_mortal (aTHX);
1140	coro_mortal = prev_sv;	1301	coro_mortal = prev_sv;
1141	UNLOCK;	1302	UNLOCK;
…		…
1178	dTHX;	1339	dTHX;
1179	struct transfer_args ta;	1340	struct transfer_args ta;
1180		1341
1181	prepare_cede (aTHX_ &ta);	1342	prepare_cede (aTHX_ &ta);
1182		1343
1183	if (ta.prev != ta.next)	1344	if (expect_true (ta.prev != ta.next))
1184	{	1345	{
1185	TRANSFER (ta);	1346	TRANSFER (ta);
1186	return 1;	1347	return 1;
1187	}	1348	}
1188	else	1349	else
…		…
1202	}	1363	}
1203	else	1364	else
1204	return 0;	1365	return 0;
1205	}	1366	}
1206		1367
		1368	static void
		1369	api_trace (SV *coro_sv, int flags)
		1370	{
		1371	dTHX;
		1372	struct coro *coro = SvSTATE (coro_sv);
		1373
		1374	if (flags & CC_TRACE)
		1375	{
		1376	if (!coro->cctx)
		1377	coro->cctx = cctx_new ();
		1378	else if (!(coro->cctx->flags & CC_TRACE))
		1379	croak ("cannot enable tracing on coroutine with custom stack");
		1380
		1381	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1382	}
		1383	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1384	{
		1385	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1386
		1387	if (coro->flags & CF_RUNNING)
		1388	PL_runops = RUNOPS_DEFAULT;
		1389	else
		1390	coro->runops = RUNOPS_DEFAULT;
		1391	}
		1392	}
		1393
1207	MODULE = Coro::State PACKAGE = Coro::State	1394	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1208		1395
1209	PROTOTYPES: DISABLE	1396	PROTOTYPES: DISABLE
1210		1397
1211	BOOT:	1398	BOOT:
1212	{	1399	{
1213	#ifdef USE_ITHREADS	1400	#ifdef USE_ITHREADS
1214	MUTEX_INIT (&coro_mutex);	1401	MUTEX_INIT (&coro_mutex);
1215	#endif	1402	#endif
1216	BOOT_PAGESIZE;	1403	BOOT_PAGESIZE;
1217		1404
		1405	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1406	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1407
1218	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1408	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1219		1409
1220	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1410	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1221	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1411	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1222	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1223	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1224	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1225	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1412	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1226	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1413	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1227		1414
1228	main_mainstack = PL_mainstack;	1415	main_mainstack = PL_mainstack;
1229	main_top_env = PL_top_env;	1416	main_top_env = PL_top_env;
1230		1417
1231	while (main_top_env->je_prev)	1418	while (main_top_env->je_prev)
…		…
1244	struct coro *coro;	1431	struct coro *coro;
1245	HV *hv;	1432	HV *hv;
1246	int i;	1433	int i;
1247		1434
1248	Newz (0, coro, 1, struct coro);	1435	Newz (0, coro, 1, struct coro);
1249	coro->args = newAV ();	1436	coro->args = newAV ();
1250	coro->save = CORO_SAVE_DEF;
1251	coro->flags = CF_NEW;	1437	coro->flags = CF_NEW;
1252		1438
1253	if (coro_first) coro_first->prev = coro;	1439	if (coro_first) coro_first->prev = coro;
1254	coro->next = coro_first;	1440	coro->next = coro_first;
1255	coro_first = coro;	1441	coro_first = coro;
1256		1442
1257	coro->hv = hv = newHV ();	1443	coro->hv = hv = newHV ();
1258	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1444	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1259	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1445	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1260		1446
		1447	av_extend (coro->args, items - 1);
1261	for (i = 1; i < items; i++)	1448	for (i = 1; i < items; i++)
1262	av_push (coro->args, newSVsv (ST (i)));	1449	av_push (coro->args, newSVsv (ST (i)));
1263	}	1450	}
1264	OUTPUT:	1451	OUTPUT:
1265	RETVAL	1452	RETVAL
1266		1453
1267	int	1454	# these not obviously related functions are all rolled into the same xs
1268	save (SV *coro, int new_save = -1)	1455	# function to increase chances that they all will call transfer with the same
1269	CODE:	1456	# stack offset
1270	RETVAL = api_save (coro, new_save);
1271	OUTPUT:
1272	RETVAL
1273
1274	int
1275	save_also (SV *coro_sv, int save_also)
1276	CODE:
1277	{
1278	struct coro *coro = SvSTATE (coro_sv);
1279	RETVAL = coro->save;
1280	coro->save \|= save_also;
1281	}
1282	OUTPUT:
1283	RETVAL
1284
1285	void	1457	void
1286	_set_stacklevel (...)	1458	_set_stacklevel (...)
1287	ALIAS:	1459	ALIAS:
1288	Coro::State::transfer = 1	1460	Coro::State::transfer = 1
1289	Coro::schedule = 2	1461	Coro::schedule = 2
…		…
1323	}	1495	}
1324		1496
1325	BARRIER;	1497	BARRIER;
1326	TRANSFER (ta);	1498	TRANSFER (ta);
1327		1499
1328	if (GIMME_V != G_VOID && ta.next != ta.prev)	1500	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1329	XSRETURN_YES;	1501	XSRETURN_YES;
1330	}	1502	}
1331		1503
1332	bool	1504	bool
1333	_destroy (SV *coro_sv)	1505	_destroy (SV *coro_sv)
…		…
1375	if (coro->hv)	1547	if (coro->hv)
1376	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	1548	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1377	}	1549	}
1378		1550
1379	void	1551	void
1380	_eval (Coro::State coro, SV *coderef)	1552	call (Coro::State coro, SV *coderef)
		1553	ALIAS:
		1554	eval = 1
1381	CODE:	1555	CODE:
1382	{	1556	{
1383	if (coro->mainstack)	1557	if (coro->mainstack)
1384	{	1558	{
1385	struct coro temp;	1559	struct coro temp;
1386	Zero (&temp, 1, struct coro);	1560	Zero (&temp, 1, struct coro);
1387	temp.save = CORO_SAVE_ALL;
1388		1561
1389	if (!(coro->flags & CF_RUNNING))	1562	if (!(coro->flags & CF_RUNNING))
1390	{	1563	{
1391	save_perl (aTHX_ &temp);	1564	save_perl (aTHX_ &temp);
1392	load_perl (aTHX_ coro);	1565	load_perl (aTHX_ coro);
…		…
1396	dSP;	1569	dSP;
1397	ENTER;	1570	ENTER;
1398	SAVETMPS;	1571	SAVETMPS;
1399	PUSHMARK (SP);	1572	PUSHMARK (SP);
1400	PUTBACK;	1573	PUTBACK;
		1574	if (ix)
		1575	eval_sv (coderef, 0);
		1576	else
1401	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1577	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1402	SPAGAIN;	1578	SPAGAIN;
1403	FREETMPS;	1579	FREETMPS;
1404	LEAVE;	1580	LEAVE;
1405	PUTBACK;	1581	PUTBACK;
1406	}	1582	}
…		…
1410	save_perl (aTHX_ coro);	1586	save_perl (aTHX_ coro);
1411	load_perl (aTHX_ &temp);	1587	load_perl (aTHX_ &temp);
1412	}	1588	}
1413	}	1589	}
1414	}	1590	}
1415		1591
1416	SV *	1592	SV *
1417	is_ready (Coro::State coro)	1593	is_ready (Coro::State coro)
1418	PROTOTYPE: $	1594	PROTOTYPE: $
1419	ALIAS:	1595	ALIAS:
1420	is_ready = CF_READY	1596	is_ready = CF_READY
…		…
1424	CODE:	1600	CODE:
1425	RETVAL = boolSV (coro->flags & ix);	1601	RETVAL = boolSV (coro->flags & ix);
1426	OUTPUT:	1602	OUTPUT:
1427	RETVAL	1603	RETVAL
1428		1604
		1605	void
		1606	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1607
		1608	SV *
		1609	has_stack (Coro::State coro)
		1610	PROTOTYPE: $
		1611	CODE:
		1612	RETVAL = boolSV (!!coro->cctx);
		1613	OUTPUT:
		1614	RETVAL
		1615
		1616	int
		1617	is_traced (Coro::State coro)
		1618	PROTOTYPE: $
		1619	CODE:
		1620	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1621	OUTPUT:
		1622	RETVAL
		1623
1429	IV	1624	IV
1430	rss (Coro::State coro)	1625	rss (Coro::State coro)
1431	PROTOTYPE: $	1626	PROTOTYPE: $
		1627	ALIAS:
		1628	usecount = 1
1432	CODE:	1629	CODE:
1433	RETVAL = coro_rss (coro);	1630	switch (ix)
		1631	{
		1632	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1633	case 1: RETVAL = coro->usecount; break;
		1634	}
1434	OUTPUT:	1635	OUTPUT:
1435	RETVAL	1636	RETVAL
1436		1637
1437		1638
1438	MODULE = Coro::State PACKAGE = Coro	1639	MODULE = Coro::State PACKAGE = Coro
1439		1640
1440	BOOT:	1641	BOOT:
1441	{	1642	{
1442	int i;	1643	int i;
		1644
		1645	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1646	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1647	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1648
		1649	coro_current = get_sv ("Coro::current", FALSE);
		1650	SvREADONLY_on (coro_current);
1443		1651
1444	coro_stash = gv_stashpv ("Coro", TRUE);	1652	coro_stash = gv_stashpv ("Coro", TRUE);
1445		1653
1446	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1654	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1447	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1655	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1448	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1656	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1449	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1657	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1450	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1658	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1451	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1659	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1452		1660
1453	coro_current = get_sv ("Coro::current", FALSE);
1454	SvREADONLY_on (coro_current);
1455
1456	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1661	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1457	coro_ready[i] = newAV ();	1662	coro_ready[i] = newAV ();
1458		1663
1459	{	1664	{
1460	SV *sv = perl_get_sv("Coro::API", 1);	1665	SV *sv = perl_get_sv("Coro::API", 1);
1461		1666
1462	coroapi.schedule = api_schedule;	1667	coroapi.schedule = api_schedule;
1463	coroapi.save = api_save;
1464	coroapi.cede = api_cede;	1668	coroapi.cede = api_cede;
1465	coroapi.cede_notself = api_cede_notself;	1669	coroapi.cede_notself = api_cede_notself;
1466	coroapi.ready = api_ready;	1670	coroapi.ready = api_ready;
1467	coroapi.is_ready = api_is_ready;	1671	coroapi.is_ready = api_is_ready;
1468	coroapi.nready = &coro_nready;	1672	coroapi.nready = &coro_nready;
…		…
1517	CODE:	1721	CODE:
1518	RETVAL = coro_nready;	1722	RETVAL = coro_nready;
1519	OUTPUT:	1723	OUTPUT:
1520	RETVAL	1724	RETVAL
1521		1725
		1726	# for async_pool speedup
		1727	void
		1728	_pool_1 (SV *cb)
		1729	CODE:
		1730	{
		1731	struct coro *coro = SvSTATE (coro_current);
		1732	HV hv = (HV )SvRV (coro_current);
		1733	AV *defav = GvAV (PL_defgv);
		1734	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1735	AV *invoke_av;
		1736	int i, len;
		1737
		1738	if (!invoke)
		1739	croak ("\3terminate\2\n");
		1740
		1741	SvREFCNT_dec (coro->saved_deffh);
		1742	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1743
		1744	hv_store (hv, "desc", sizeof ("desc") - 1,
		1745	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1746
		1747	invoke_av = (AV *)SvRV (invoke);
		1748	len = av_len (invoke_av);
		1749
		1750	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1751
		1752	if (len > 0)
		1753	{
		1754	av_fill (defav, len - 1);
		1755	for (i = 0; i < len; ++i)
		1756	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1757	}
		1758
		1759	SvREFCNT_dec (invoke);
		1760	}
		1761
		1762	void
		1763	_pool_2 (SV *cb)
		1764	CODE:
		1765	{
		1766	struct coro *coro = SvSTATE (coro_current);
		1767
		1768	sv_setsv (cb, &PL_sv_undef);
		1769
		1770	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1771	coro->saved_deffh = 0;
		1772
		1773	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1774	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1775	croak ("\3terminate\2\n");
		1776
		1777	av_clear (GvAV (PL_defgv));
		1778	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1779	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1780
		1781	coro->prio = 0;
		1782
		1783	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1784	api_trace (coro_current, 0);
		1785
		1786	av_push (av_async_pool, newSVsv (coro_current));
		1787	}
		1788
		1789
1522	MODULE = Coro::State PACKAGE = Coro::AIO	1790	MODULE = Coro::State PACKAGE = Coro::AIO
1523		1791
1524	SV *	1792	SV *
1525	_get_state ()	1793	_get_state ()
1526	CODE:	1794	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.157 by root, Fri Sep 21 02:01:13 2007 UTC vs. Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.157 by root, Fri Sep 21 02:01:13 2007 UTC vs.
Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC