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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.192 by root, Fri Oct 5 21:51:40 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
…		…
129	};	136	};
130		137
131	static size_t coro_stacksize = CORO_STACKSIZE;	138	static size_t coro_stacksize = CORO_STACKSIZE;
132	static struct CoroAPI coroapi;	139	static struct CoroAPI coroapi;
133	static AV main_mainstack; / used to differentiate between $main and others */	140	static AV main_mainstack; / used to differentiate between $main and others */
		141	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	142	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	143	static SV coro_mortal; / will be freed after next transfer */
136		144
		145	static GV irsgv; / $/ */
		146	static GV stdoutgv; / STDOUT /
		147
		148	/* async_pool helper stuff */
		149	static SV *sv_pool_rss;
		150	static SV *sv_pool_size;
		151	static AV *av_async_pool;
		152
137	static struct coro_cctx *cctx_first;	153	static struct coro_cctx *cctx_first;
138	static int cctx_count, cctx_idle;	154	static int cctx_count, cctx_idle;
		155
		156	enum {
		157	CC_MAPPED = 0x01,
		158	CC_NOREUSE = 0x02, /* throw this away after tracing */
		159	CC_TRACE = 0x04,
		160	CC_TRACE_SUB = 0x08, /* trace sub calls */
		161	CC_TRACE_LINE = 0x10, /* trace each statement */
		162	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		163	};
139		164
140	/* this is a structure representing a c-level coroutine */	165	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	166	typedef struct coro_cctx {
142	struct coro_cctx *next;	167	struct coro_cctx *next;
143		168
…		…
152	coro_context cctx;	177	coro_context cctx;
153		178
154	#if CORO_USE_VALGRIND	179	#if CORO_USE_VALGRIND
155	int valgrind_id;	180	int valgrind_id;
156	#endif	181	#endif
157	char inuse, mapped;	182	unsigned char flags;
158	} coro_cctx;	183	} coro_cctx;
159		184
160	enum {	185	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	186	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	187	CF_READY = 0x0002, /* coroutine is ready */
…		…
170	coro_cctx *cctx;	195	coro_cctx *cctx;
171		196
172	/* data associated with this coroutine (initial args) */	197	/* data associated with this coroutine (initial args) */
173	AV *args;	198	AV *args;
174	int refcnt;	199	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	200	int flags; /* CF_ flags */
177		201
178	/* optionally saved, might be zero */	202	/* optionally saved, might be zero */
179	AV defav; / @_ */	203	AV defav; / @_ */
180	SV defsv; / $_ */	204	SV defsv; / $_ */
181	SV errsv; / $@ */	205	SV errsv; / $@ */
		206	SV deffh; / default filehandle */
182	SV irssv; / $/ */	207	SV irssv; / $/ */
183	SV irssv_sv; / real $/ cache */	208	SV irssv_sv; / real $/ cache */
184		209
185	#define VAR(name,type) type name;	210	#define VAR(name,type) type name;
186	# include "state.h"	211	# include "state.h"
187	#undef VAR	212	#undef VAR
188		213
		214	/* statistics */
		215	int usecount; /* number of transfers to this coro */
		216
189	/* coro process data */	217	/* coro process data */
190	int prio;	218	int prio;
		219	//SV *throw;
		220
		221	/* async_pool */
		222	SV *saved_deffh;
		223
		224	/* linked list */
		225	struct coro next, prev;
		226	HV hv; / the perl hash associated with this coro, if any */
191	};	227	};
192		228
193	typedef struct coro *Coro__State;	229	typedef struct coro *Coro__State;
194	typedef struct coro *Coro__State_or_hashref;	230	typedef struct coro *Coro__State_or_hashref;
195		231
…		…
204		240
205	/* for Coro.pm */	241	/* for Coro.pm */
206	static SV *coro_current;	242	static SV *coro_current;
207	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	243	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
208	static int coro_nready;	244	static int coro_nready;
		245	static struct coro *coro_first;
209		246
210	/ lowlevel stuff ********************************************************/	247	/ lowlevel stuff ********************************************************/
211		248
212	static AV *	249	static AV *
213	coro_clone_padlist (pTHX_ CV *cv)	250	coro_clone_padlist (pTHX_ CV *cv)
…		…
278	SvMAGIC (cv) \	315	SvMAGIC (cv) \
279	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	316	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
280	? SvMAGIC (cv) \	317	? SvMAGIC (cv) \
281	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	318	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
282	: 0	319	: 0
		320
		321	static struct coro *
		322	SvSTATE_ (pTHX_ SV *coro)
		323	{
		324	HV *stash;
		325	MAGIC *mg;
		326
		327	if (SvROK (coro))
		328	coro = SvRV (coro);
		329
		330	if (SvTYPE (coro) != SVt_PVHV)
		331	croak ("Coro::State object required");
		332
		333	stash = SvSTASH (coro);
		334	if (stash != coro_stash && stash != coro_state_stash)
		335	{
		336	/* very slow, but rare, check */
		337	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		338	croak ("Coro::State object required");
		339	}
		340
		341	mg = CORO_MAGIC (coro);
		342	return (struct coro *)mg->mg_ptr;
		343	}
		344
		345	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
283		346
284	/* the next two functions merely cache the padlists */	347	/* the next two functions merely cache the padlists */
285	static void	348	static void
286	get_padlist (pTHX_ CV *cv)	349	get_padlist (pTHX_ CV *cv)
287	{	350	{
…		…
326	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	389	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
327	}	390	}
328		391
329	/ load & save, init *****************************************************/	392	/ load & save, init *****************************************************/
330		393
331	#define SB do {
332	#define SE } while (0)
333
334	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
335
336	static void	394	static void
337	load_perl (pTHX_ Coro__State c)	395	load_perl (pTHX_ Coro__State c)
338	{	396	{
339	#define VAR(name,type) PL_ ## name = c->name;	397	#define VAR(name,type) PL_ ## name = c->name;
340	# include "state.h"	398	# include "state.h"
341	#undef VAR	399	#undef VAR
342		400
343	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	401	GvSV (PL_defgv) = c->defsv;
344	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	402	GvAV (PL_defgv) = c->defav;
345	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	403	GvSV (PL_errgv) = c->errsv;
346	if (c->irssv)	404	GvSV (irsgv) = c->irssv_sv;
347	{
348	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
349	SvREFCNT_dec (c->irssv);
350	else
351	{
352	REPLACE_SV (PL_rs, c->irssv);
353	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
354	sv_setsv (c->irssv_sv, PL_rs);
355	}
356	}
357		405
358	{	406	{
359	dSP;	407	dSP;
360	CV *cv;	408	CV *cv;
361		409
…		…
367	CvPADLIST (cv) = (AV *)POPs;	415	CvPADLIST (cv) = (AV *)POPs;
368	}	416	}
369		417
370	PUTBACK;	418	PUTBACK;
371	}	419	}
372	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
373	}	420	}
374		421
375	static void	422	static void
376	save_perl (pTHX_ Coro__State c)	423	save_perl (pTHX_ Coro__State c)
377	{	424	{
378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
379	{	425	{
380	dSP;	426	dSP;
381	I32 cxix = cxstack_ix;	427	I32 cxix = cxstack_ix;
382	PERL_CONTEXT *ccstk = cxstack;	428	PERL_CONTEXT *ccstk = cxstack;
383	PERL_SI *top_si = PL_curstackinfo;	429	PERL_SI *top_si = PL_curstackinfo;
…		…
385	/*	431	/*
386	* the worst thing you can imagine happens first - we have to save	432	* the worst thing you can imagine happens first - we have to save
387	* (and reinitialize) all cv's in the whole callchain :(	433	* (and reinitialize) all cv's in the whole callchain :(
388	*/	434	*/
389		435
390	EXTEND (SP, 3 + 1);
391	PUSHs (Nullsv);	436	XPUSHs (Nullsv);
392	/* this loop was inspired by pp_caller */	437	/* this loop was inspired by pp_caller */
393	for (;;)	438	for (;;)
394	{	439	{
395	while (cxix >= 0)	440	while (cxix >= 0)
396	{	441	{
397	PERL_CONTEXT *cx = &ccstk[cxix--];	442	PERL_CONTEXT *cx = &ccstk[cxix--];
398		443
399	if (CxTYPE (cx) == CXt_SUB)	444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
400	{	445	{
401	CV *cv = cx->blk_sub.cv;	446	CV *cv = cx->blk_sub.cv;
402		447
403	if (CvDEPTH (cv))	448	if (CvDEPTH (cv))
404	{	449	{
…		…
415		460
416	if (top_si->si_type == PERLSI_MAIN)	461	if (top_si->si_type == PERLSI_MAIN)
417	break;	462	break;
418		463
419	top_si = top_si->si_prev;	464	top_si = top_si->si_prev;
420	ccstk = top_si->si_cxstack;	465	ccstk = top_si->si_cxstack;
421	cxix = top_si->si_cxix;	466	cxix = top_si->si_cxix;
422	}	467	}
423		468
424	PUTBACK;	469	PUTBACK;
425	}	470	}
426		471
427	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	472	c->defav = GvAV (PL_defgv);
428	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	473	c->defsv = DEFSV;
429	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	474	c->errsv = ERRSV;
430	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	475	c->irssv_sv = GvSV (irsgv);
431		476
432	#define VAR(name,type)c->name = PL_ ## name;	477	#define VAR(name,type)c->name = PL_ ## name;
433	# include "state.h"	478	# include "state.h"
434	#undef VAR	479	#undef VAR
435	}	480	}
…		…
444	# define coro_init_stacks init_stacks	489	# define coro_init_stacks init_stacks
445	#else	490	#else
446	static void	491	static void
447	coro_init_stacks (pTHX)	492	coro_init_stacks (pTHX)
448	{	493	{
449	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	494	PL_curstackinfo = new_stackinfo(64, 6);
450	PL_curstackinfo->si_type = PERLSI_MAIN;	495	PL_curstackinfo->si_type = PERLSI_MAIN;
451	PL_curstack = PL_curstackinfo->si_stack;	496	PL_curstack = PL_curstackinfo->si_stack;
452	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	497	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
453		498
454	PL_stack_base = AvARRAY(PL_curstack);	499	PL_stack_base = AvARRAY(PL_curstack);
455	PL_stack_sp = PL_stack_base;	500	PL_stack_sp = PL_stack_base;
456	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	501	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
457		502
458	New(50,PL_tmps_stack,128,SV*);	503	New(50,PL_tmps_stack,64,SV*);
459	PL_tmps_floor = -1;	504	PL_tmps_floor = -1;
460	PL_tmps_ix = -1;	505	PL_tmps_ix = -1;
461	PL_tmps_max = 128;	506	PL_tmps_max = 64;
462		507
463	New(54,PL_markstack,32,I32);	508	New(54,PL_markstack,16,I32);
464	PL_markstack_ptr = PL_markstack;	509	PL_markstack_ptr = PL_markstack;
465	PL_markstack_max = PL_markstack + 32;	510	PL_markstack_max = PL_markstack + 16;
466		511
467	#ifdef SET_MARK_OFFSET	512	#ifdef SET_MARK_OFFSET
468	SET_MARK_OFFSET;	513	SET_MARK_OFFSET;
469	#endif	514	#endif
470		515
471	New(54,PL_scopestack,32,I32);	516	New(54,PL_scopestack,16,I32);
472	PL_scopestack_ix = 0;	517	PL_scopestack_ix = 0;
473	PL_scopestack_max = 32;	518	PL_scopestack_max = 16;
474		519
475	New(54,PL_savestack,64,ANY);	520	New(54,PL_savestack,64,ANY);
476	PL_savestack_ix = 0;	521	PL_savestack_ix = 0;
477	PL_savestack_max = 64;	522	PL_savestack_max = 64;
478		523
479	#if !PERL_VERSION_ATLEAST (5,9,0)	524	#if !PERL_VERSION_ATLEAST (5,9,0)
480	New(54,PL_retstack,16,OP*);	525	New(54,PL_retstack,4,OP*);
481	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
482	PL_retstack_max = 16;	527	PL_retstack_max = 4;
483	#endif	528	#endif
484	}	529	}
485	#endif	530	#endif
486		531
487	/*	532	/*
488	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
489	*/	534	*/
490	static void	535	static void
491	coro_destroy_stacks (pTHX)	536	coro_destroy_stacks (pTHX)
492	{	537	{
493	if (!IN_DESTRUCT)
494	{
495	/* restore all saved variables and stuff */
496	LEAVE_SCOPE (0);
497	assert (PL_tmps_floor == -1);
498
499	/* free all temporaries */
500	FREETMPS;
501	assert (PL_tmps_ix == -1);
502
503	/* unwind all extra stacks */
504	POPSTACK_TO (PL_mainstack);
505
506	/* unwind main stack */
507	dounwind (-1);
508	}
509
510	while (PL_curstackinfo->si_next)	538	while (PL_curstackinfo->si_next)
511	PL_curstackinfo = PL_curstackinfo->si_next;	539	PL_curstackinfo = PL_curstackinfo->si_next;
512		540
513	while (PL_curstackinfo)	541	while (PL_curstackinfo)
514	{	542	{
…		…
529	#if !PERL_VERSION_ATLEAST (5,9,0)	557	#if !PERL_VERSION_ATLEAST (5,9,0)
530	Safefree (PL_retstack);	558	Safefree (PL_retstack);
531	#endif	559	#endif
532	}	560	}
533		561
		562	static size_t
		563	coro_rss (pTHX_ struct coro *coro)
		564	{
		565	size_t rss = sizeof (*coro);
		566
		567	if (coro->mainstack)
		568	{
		569	if (coro->flags & CF_RUNNING)
		570	{
		571	#define VAR(name,type)coro->name = PL_ ## name;
		572	# include "state.h"
		573	#undef VAR
		574	}
		575
		576	rss += sizeof (coro->curstackinfo);
		577	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		578	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		579	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		580	rss += coro->tmps_max * sizeof (SV *);
		581	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		582	rss += coro->scopestack_max * sizeof (I32);
		583	rss += coro->savestack_max * sizeof (ANY);
		584
		585	#if !PERL_VERSION_ATLEAST (5,9,0)
		586	rss += coro->retstack_max * sizeof (OP *);
		587	#endif
		588	}
		589
		590	return rss;
		591	}
		592
534	/ coroutine stack handling **********************************************/	593	/ coroutine stack handling **********************************************/
535		594
536	static void	595	static void
537	setup_coro (pTHX_ struct coro *coro)	596	coro_setup (pTHX_ struct coro *coro)
538	{	597	{
539	/*	598	/*
540	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
541	*/	600	*/
542	coro_init_stacks (aTHX);	601	coro_init_stacks (aTHX);
543		602
		603	PL_runops = RUNOPS_DEFAULT;
544	PL_curcop = &PL_compiling;	604	PL_curcop = &PL_compiling;
545	PL_in_eval = EVAL_NULL;	605	PL_in_eval = EVAL_NULL;
546	PL_comppad = 0;	606	PL_comppad = 0;
547	PL_curpm = 0;	607	PL_curpm = 0;
548	PL_localizing = 0;	608	PL_localizing = 0;
549	PL_dirty = 0;	609	PL_dirty = 0;
550	PL_restartop = 0;	610	PL_restartop = 0;
		611
		612	GvSV (PL_defgv) = newSV (0);
		613	GvAV (PL_defgv) = coro->args; coro->args = 0;
		614	GvSV (PL_errgv) = newSV (0);
		615	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		616	PL_rs = newSVsv (GvSV (irsgv));
		617	PL_defoutgv = SvREFCNT_inc (stdoutgv);
		618
		619	ENTER; /* necessary e.g. for dounwind */
551		620
552	{	621	{
553	dSP;	622	dSP;
554	LOGOP myop;	623	LOGOP myop;
555		624
556	SvREFCNT_dec (GvAV (PL_defgv));
557	GvAV (PL_defgv) = coro->args; coro->args = 0;
558
559	Zero (&myop, 1, LOGOP);	625	Zero (&myop, 1, LOGOP);
560	myop.op_next = Nullop;	626	myop.op_next = Nullop;
561	myop.op_flags = OPf_WANT_VOID;	627	myop.op_flags = OPf_WANT_VOID;
562		628
563	PUSHMARK (SP);	629	PUSHMARK (SP);
564	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	630	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
565	PUTBACK;	631	PUTBACK;
566	PL_op = (OP *)&myop;	632	PL_op = (OP *)&myop;
567	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	633	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568	SPAGAIN;	634	SPAGAIN;
569	}	635	}
		636	}
570		637
571	ENTER; /* necessary e.g. for dounwind */	638	static void
		639	coro_destroy (pTHX_ struct coro *coro)
		640	{
		641	if (!IN_DESTRUCT)
		642	{
		643	/* restore all saved variables and stuff */
		644	LEAVE_SCOPE (0);
		645	assert (PL_tmps_floor == -1);
		646
		647	/* free all temporaries */
		648	FREETMPS;
		649	assert (PL_tmps_ix == -1);
		650
		651	/* unwind all extra stacks */
		652	POPSTACK_TO (PL_mainstack);
		653
		654	/* unwind main stack */
		655	dounwind (-1);
		656	}
		657
		658	SvREFCNT_dec (GvSV (PL_defgv));
		659	SvREFCNT_dec (GvAV (PL_defgv));
		660	SvREFCNT_dec (GvSV (PL_errgv));
		661	SvREFCNT_dec (PL_defoutgv);
		662	SvREFCNT_dec (PL_rs);
		663	SvREFCNT_dec (GvSV (irsgv));
		664
		665	SvREFCNT_dec (coro->saved_deffh);
		666	//SvREFCNT_dec (coro->throw);
		667
		668	coro_destroy_stacks (aTHX);
572	}	669	}
573		670
574	static void	671	static void
575	free_coro_mortal (pTHX)	672	free_coro_mortal (pTHX)
576	{	673	{
…		…
579	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
580	coro_mortal = 0;	677	coro_mortal = 0;
581	}	678	}
582	}	679	}
583		680
		681	static int
		682	runops_trace (pTHX)
		683	{
		684	COP *oldcop = 0;
		685	int oldcxix = -2;
		686	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		687	coro_cctx *cctx = coro->cctx;
		688
		689	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		690	{
		691	PERL_ASYNC_CHECK ();
		692
		693	if (cctx->flags & CC_TRACE_ALL)
		694	{
		695	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		696	{
		697	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		698	SV bot, top;
		699	AV av = newAV (); / return values */
		700	SV **cb;
		701	dSP;
		702
		703	GV *gv = CvGV (cx->blk_sub.cv);
		704	SV *fullname = sv_2mortal (newSV (0));
		705	if (isGV (gv))
		706	gv_efullname3 (fullname, gv, 0);
		707
		708	bot = PL_stack_base + cx->blk_oldsp + 1;
		709	top = cx->blk_gimme == G_ARRAY ? SP + 1
		710	: cx->blk_gimme == G_SCALAR ? bot + 1
		711	: bot;
		712
		713	while (bot < top)
		714	av_push (av, SvREFCNT_inc (*bot++));
		715
		716	PL_runops = RUNOPS_DEFAULT;
		717	ENTER;
		718	SAVETMPS;
		719	EXTEND (SP, 3);
		720	PUSHMARK (SP);
		721	PUSHs (&PL_sv_no);
		722	PUSHs (fullname);
		723	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		724	PUTBACK;
		725	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		726	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		727	SPAGAIN;
		728	FREETMPS;
		729	LEAVE;
		730	PL_runops = runops_trace;
		731	}
		732
		733	if (oldcop != PL_curcop)
		734	{
		735	oldcop = PL_curcop;
		736
		737	if (PL_curcop != &PL_compiling)
		738	{
		739	SV **cb;
		740
		741	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		742	{
		743	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		744
		745	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		746	{
		747	runops_proc_t old_runops = PL_runops;
		748	dSP;
		749	GV *gv = CvGV (cx->blk_sub.cv);
		750	SV *fullname = sv_2mortal (newSV (0));
		751
		752	if (isGV (gv))
		753	gv_efullname3 (fullname, gv, 0);
		754
		755	PL_runops = RUNOPS_DEFAULT;
		756	ENTER;
		757	SAVETMPS;
		758	EXTEND (SP, 3);
		759	PUSHMARK (SP);
		760	PUSHs (&PL_sv_yes);
		761	PUSHs (fullname);
		762	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		763	PUTBACK;
		764	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		765	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		766	SPAGAIN;
		767	FREETMPS;
		768	LEAVE;
		769	PL_runops = runops_trace;
		770	}
		771
		772	oldcxix = cxstack_ix;
		773	}
		774
		775	if (cctx->flags & CC_TRACE_LINE)
		776	{
		777	dSP;
		778
		779	PL_runops = RUNOPS_DEFAULT;
		780	ENTER;
		781	SAVETMPS;
		782	EXTEND (SP, 3);
		783	PL_runops = RUNOPS_DEFAULT;
		784	PUSHMARK (SP);
		785	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		786	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		787	PUTBACK;
		788	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		789	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		790	SPAGAIN;
		791	FREETMPS;
		792	LEAVE;
		793	PL_runops = runops_trace;
		794	}
		795	}
		796	}
		797	}
		798	}
		799
		800	TAINT_NOT;
		801	return 0;
		802	}
		803
584	/* inject a fake call to Coro::State::_cctx_init into the execution */	804	/* inject a fake call to Coro::State::_cctx_init into the execution */
		805	/* _cctx_init should be careful, as it could be called at almost any time */
		806	/* during execution of a perl program */
585	static void NOINLINE	807	static void NOINLINE
586	prepare_cctx (pTHX_ coro_cctx *cctx)	808	prepare_cctx (pTHX_ coro_cctx *cctx)
587	{	809	{
588	dSP;	810	dSP;
589	LOGOP myop;	811	LOGOP myop;
		812
		813	PL_top_env = &PL_start_env;
		814
		815	if (cctx->flags & CC_TRACE)
		816	PL_runops = runops_trace;
590		817
591	Zero (&myop, 1, LOGOP);	818	Zero (&myop, 1, LOGOP);
592	myop.op_next = PL_op;	819	myop.op_next = PL_op;
593	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	820	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
594		821
…		…
600	PL_op = (OP *)&myop;	827	PL_op = (OP *)&myop;
601	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	828	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
602	SPAGAIN;	829	SPAGAIN;
603	}	830	}
604		831
		832	/*
		833	* this is a _very_ stripped down perl interpreter ;)
		834	*/
605	static void	835	static void
606	coro_run (void *arg)	836	coro_run (void *arg)
607	{	837	{
608	dTHX;	838	dTHX;
609		839
610	/* coro_run is the alternative tail of transfer(), so unlock here. */	840	/* coro_run is the alternative tail of transfer(), so unlock here. */
611	UNLOCK;	841	UNLOCK;
612		842
613	/*	843	/* we now skip the entersub that lead to transfer() */
614	* this is a _very_ stripped down perl interpreter ;)	844	PL_op = PL_op->op_next;
615	*/
616	PL_top_env = &PL_start_env;
617		845
618	/* inject call to cctx_init */	846	/* inject a fake subroutine call to cctx_init */
619	prepare_cctx (aTHX_ (coro_cctx *)arg);	847	prepare_cctx (aTHX_ (coro_cctx *)arg);
620		848
621	/* somebody will hit me for both perl_run and PL_restartop */	849	/* somebody or something will hit me for both perl_run and PL_restartop */
622	PL_restartop = PL_op;	850	PL_restartop = PL_op;
623	perl_run (PL_curinterp);	851	perl_run (PL_curinterp);
624		852
625	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	853	/*
626	abort ();	854	* If perl-run returns we assume exit() was being called or the coro
		855	* fell off the end, which seems to be the only valid (non-bug)
		856	* reason for perl_run to return. We try to exit by jumping to the
		857	* bootstrap-time "top" top_env, as we cannot restore the "main"
		858	* coroutine as Coro has no such concept
		859	*/
		860	PL_top_env = main_top_env;
		861	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
627	}	862	}
628		863
629	static coro_cctx *	864	static coro_cctx *
630	cctx_new ()	865	cctx_new ()
631	{	866	{
…		…
648	# if CORO_STACKGUARD	883	# if CORO_STACKGUARD
649	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	884	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
650	# endif	885	# endif
651	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	886	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
652	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	887	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
653	cctx->mapped = 1;	888	cctx->flags \|= CC_MAPPED;
654	}	889	}
655	else	890	else
656	#endif	891	#endif
657	{	892	{
658	cctx->ssize = coro_stacksize * (long)sizeof (long);	893	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
685	#if CORO_USE_VALGRIND	920	#if CORO_USE_VALGRIND
686	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	921	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
687	#endif	922	#endif
688		923
689	#if HAVE_MMAP	924	#if HAVE_MMAP
690	if (cctx->mapped)	925	if (cctx->flags & CC_MAPPED)
691	munmap (cctx->sptr, cctx->ssize);	926	munmap (cctx->sptr, cctx->ssize);
692	else	927	else
693	#endif	928	#endif
694	Safefree (cctx->sptr);	929	Safefree (cctx->sptr);
695		930
…		…
703	{	938	{
704	coro_cctx *cctx = cctx_first;	939	coro_cctx *cctx = cctx_first;
705	cctx_first = cctx->next;	940	cctx_first = cctx->next;
706	--cctx_idle;	941	--cctx_idle;
707		942
708	if (cctx->ssize >= coro_stacksize)	943	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
709	return cctx;	944	return cctx;
710		945
711	cctx_destroy (cctx);	946	cctx_destroy (cctx);
712	}	947	}
713		948
714	PL_op = PL_op->op_next;
715	return cctx_new ();	949	return cctx_new ();
716	}	950	}
717		951
718	static void	952	static void
719	cctx_put (coro_cctx *cctx)	953	cctx_put (coro_cctx *cctx)
…		…
723	{	957	{
724	coro_cctx *first = cctx_first;	958	coro_cctx *first = cctx_first;
725	cctx_first = first->next;	959	cctx_first = first->next;
726	--cctx_idle;	960	--cctx_idle;
727		961
728	assert (!first->inuse);
729	cctx_destroy (first);	962	cctx_destroy (first);
730	}	963	}
731		964
732	++cctx_idle;	965	++cctx_idle;
733	cctx->next = cctx_first;	966	cctx->next = cctx_first;
734	cctx_first = cctx;	967	cctx_first = cctx;
735	}	968	}
736		969
737	/ coroutine switching ***************************************************/	970	/ coroutine switching ***************************************************/
738		971
739	/* never call directly, always through the coro_state_transfer global variable */	972	static void NOINLINE
		973	transfer_check (pTHX_ struct coro prev, struct coro next)
		974	{
		975	if (prev != next)
		976	{
		977	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		978	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		979
		980	if (next->flags & CF_RUNNING)
		981	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		982
		983	if (next->flags & CF_DESTROYED)
		984	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		985
		986	if (PL_lex_state != LEX_NOTPARSING)
		987	croak ("Coro::State::transfer called while parsing, but this is not supported");
		988	}
		989	}
		990
		991	/* always use the TRANSFER macro */
740	static void NOINLINE	992	static void NOINLINE
741	transfer (pTHX_ struct coro prev, struct coro next)	993	transfer (pTHX_ struct coro prev, struct coro next)
742	{	994	{
743	dSTACKLEVEL;	995	dSTACKLEVEL;
744		996
…		…
754		1006
755	if (prev->flags & CF_NEW)	1007	if (prev->flags & CF_NEW)
756	{	1008	{
757	/* create a new empty context */	1009	/* create a new empty context */
758	Newz (0, prev->cctx, 1, coro_cctx);	1010	Newz (0, prev->cctx, 1, coro_cctx);
759	prev->cctx->inuse = 1;
760	prev->flags &= ~CF_NEW;	1011	prev->flags &= ~CF_NEW;
761	prev->flags \|= CF_RUNNING;	1012	prev->flags \|= CF_RUNNING;
762	}	1013	}
763
764	/TODO: must not croak here /
765	if (!prev->flags & CF_RUNNING)
766	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
767
768	if (next->flags & CF_RUNNING)
769	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
770
771	if (next->flags & CF_DESTROYED)
772	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
773		1014
774	prev->flags &= ~CF_RUNNING;	1015	prev->flags &= ~CF_RUNNING;
775	next->flags \|= CF_RUNNING;	1016	next->flags \|= CF_RUNNING;
776		1017
777	LOCK;	1018	LOCK;
…		…
781	/* need to start coroutine */	1022	/* need to start coroutine */
782	next->flags &= ~CF_NEW;	1023	next->flags &= ~CF_NEW;
783	/* first get rid of the old state */	1024	/* first get rid of the old state */
784	save_perl (aTHX_ prev);	1025	save_perl (aTHX_ prev);
785	/* setup coroutine call */	1026	/* setup coroutine call */
786	setup_coro (aTHX_ next);	1027	coro_setup (aTHX_ next);
787	/* need a new stack */
788	assert (!next->cctx);
789	}	1028	}
790	else	1029	else
791	{	1030	{
792	/* coroutine already started */	1031	/* coroutine already started */
793	save_perl (aTHX_ prev);	1032	save_perl (aTHX_ prev);
…		…
795	}	1034	}
796		1035
797	prev__cctx = prev->cctx;	1036	prev__cctx = prev->cctx;
798		1037
799	/* possibly "free" the cctx */	1038	/* possibly "free" the cctx */
800	if (prev__cctx->idle_sp == STACKLEVEL)	1039	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
801	{	1040	{
802	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1041	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
803	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1042	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
804		1043
805	prev->cctx = 0;	1044	prev->cctx = 0;
806		1045
807	cctx_put (prev__cctx);	1046	cctx_put (prev__cctx);
808	prev__cctx->inuse = 0;
809	}	1047	}
810		1048
		1049	++next->usecount;
		1050
811	if (!next->cctx)	1051	if (!next->cctx)
812	{
813	next->cctx = cctx_get (aTHX);	1052	next->cctx = cctx_get (aTHX);
814	assert (!next->cctx->inuse);
815	next->cctx->inuse = 1;
816	}
817		1053
818	if (prev__cctx != next->cctx)	1054	if (prev__cctx != next->cctx)
819	{	1055	{
820	prev__cctx->top_env = PL_top_env;	1056	prev__cctx->top_env = PL_top_env;
821	PL_top_env = next->cctx->top_env;	1057	PL_top_env = next->cctx->top_env;
…		…
831	{	1067	{
832	struct coro prev, next;	1068	struct coro prev, next;
833	};	1069	};
834		1070
835	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1071	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1072	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
836		1073
837	/ high level stuff ******************************************************/	1074	/ high level stuff ******************************************************/
838		1075
839	static int	1076	static int
840	coro_state_destroy (pTHX_ struct coro *coro)	1077	coro_state_destroy (pTHX_ struct coro *coro)
…		…
857		1094
858	if (coro->mainstack && coro->mainstack != main_mainstack)	1095	if (coro->mainstack && coro->mainstack != main_mainstack)
859	{	1096	{
860	struct coro temp;	1097	struct coro temp;
861		1098
862	assert (!(coro->flags & CF_RUNNING));
863
864	Zero (&temp, 1, struct coro);
865	temp.save = CORO_SAVE_ALL;
866
867	if (coro->flags & CF_RUNNING)	1099	if (coro->flags & CF_RUNNING)
868	croak ("FATAL: tried to destroy currently running coroutine");	1100	croak ("FATAL: tried to destroy currently running coroutine");
869		1101
870	save_perl (aTHX_ &temp);	1102	save_perl (aTHX_ &temp);
871	load_perl (aTHX_ coro);	1103	load_perl (aTHX_ coro);
872		1104
873	coro_destroy_stacks (aTHX);	1105	coro_destroy (aTHX_ coro);
874		1106
875	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1107	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
876		1108
877	coro->mainstack = 0;	1109	coro->mainstack = 0;
878	}	1110	}
879		1111
880	cctx_destroy (coro->cctx);	1112	cctx_destroy (coro->cctx);
881	SvREFCNT_dec (coro->args);	1113	SvREFCNT_dec (coro->args);
882		1114
		1115	if (coro->next) coro->next->prev = coro->prev;
		1116	if (coro->prev) coro->prev->next = coro->next;
		1117	if (coro == coro_first) coro_first = coro->next;
		1118
883	return 1;	1119	return 1;
884	}	1120	}
885		1121
886	static int	1122	static int
887	coro_state_free (pTHX_ SV sv, MAGIC mg)	1123	coro_state_free (pTHX_ SV sv, MAGIC mg)
888	{	1124	{
889	struct coro coro = (struct coro )mg->mg_ptr;	1125	struct coro coro = (struct coro )mg->mg_ptr;
890	mg->mg_ptr = 0;	1126	mg->mg_ptr = 0;
		1127
		1128	coro->hv = 0;
891		1129
892	if (--coro->refcnt < 0)	1130	if (--coro->refcnt < 0)
893	{	1131	{
894	coro_state_destroy (aTHX_ coro);	1132	coro_state_destroy (aTHX_ coro);
895	Safefree (coro);	1133	Safefree (coro);
…		…
917	#else	1155	#else
918	# define MGf_DUP 0	1156	# define MGf_DUP 0
919	#endif	1157	#endif
920	};	1158	};
921		1159
922	static struct coro *
923	SvSTATE_ (pTHX_ SV *coro)
924	{
925	HV *stash;
926	MAGIC *mg;
927
928	if (SvROK (coro))
929	coro = SvRV (coro);
930
931	stash = SvSTASH (coro);
932	if (stash != coro_stash && stash != coro_state_stash)
933	{
934	/* very slow, but rare, check */
935	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
936	croak ("Coro::State object required");
937	}
938
939	mg = CORO_MAGIC (coro);
940	return (struct coro *)mg->mg_ptr;
941	}
942
943	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
944
945	static void	1160	static void
946	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1161	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
947	{	1162	{
948	ta->prev = SvSTATE (prev_sv);	1163	ta->prev = SvSTATE (prev_sv);
949	ta->next = SvSTATE (next_sv);	1164	ta->next = SvSTATE (next_sv);
		1165	TRANSFER_CHECK (*ta);
950	}	1166	}
951		1167
952	static void	1168	static void
953	api_transfer (SV prev_sv, SV next_sv)	1169	api_transfer (SV prev_sv, SV next_sv)
954	{	1170	{
955	dTHX;	1171	dTHX;
956	struct transfer_args ta;	1172	struct transfer_args ta;
957		1173
958	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1174	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
959	TRANSFER (ta);	1175	TRANSFER (ta);
960	}
961
962	static int
963	api_save (SV *coro_sv, int new_save)
964	{
965	dTHX;
966	struct coro *coro = SvSTATE (coro_sv);
967	int old_save = coro->save;
968
969	if (new_save >= 0)
970	coro->save = new_save;
971
972	return old_save;
973	}	1176	}
974		1177
975	/ Coro ******************************************************************/	1178	/ Coro ******************************************************************/
976		1179
977	static void	1180	static void
…		…
1071	break;	1274	break;
1072	}	1275	}
1073		1276
1074	/* free this only after the transfer */	1277	/* free this only after the transfer */
1075	prev_sv = SvRV (coro_current);	1278	prev_sv = SvRV (coro_current);
1076	SvRV_set (coro_current, next_sv);
1077	ta->prev = SvSTATE (prev_sv);	1279	ta->prev = SvSTATE (prev_sv);
1078		1280	TRANSFER_CHECK (*ta);
1079	assert (ta->next->flags & CF_READY);	1281	assert (ta->next->flags & CF_READY);
1080	ta->next->flags &= ~CF_READY;	1282	ta->next->flags &= ~CF_READY;
		1283	SvRV_set (coro_current, next_sv);
1081		1284
1082	LOCK;	1285	LOCK;
1083	free_coro_mortal (aTHX);	1286	free_coro_mortal (aTHX);
1084	coro_mortal = prev_sv;	1287	coro_mortal = prev_sv;
1085	UNLOCK;	1288	UNLOCK;
…		…
1146	}	1349	}
1147	else	1350	else
1148	return 0;	1351	return 0;
1149	}	1352	}
1150		1353
		1354	static void
		1355	api_trace (SV *coro_sv, int flags)
		1356	{
		1357	dTHX;
		1358	struct coro *coro = SvSTATE (coro_sv);
		1359
		1360	if (flags & CC_TRACE)
		1361	{
		1362	if (!coro->cctx)
		1363	coro->cctx = cctx_new ();
		1364	else if (!(coro->cctx->flags & CC_TRACE))
		1365	croak ("cannot enable tracing on coroutine with custom stack");
		1366
		1367	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1368	}
		1369	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1370	{
		1371	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1372
		1373	if (coro->flags & CF_RUNNING)
		1374	PL_runops = RUNOPS_DEFAULT;
		1375	else
		1376	coro->runops = RUNOPS_DEFAULT;
		1377	}
		1378	}
		1379
1151	MODULE = Coro::State PACKAGE = Coro::State	1380	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1152		1381
1153	PROTOTYPES: DISABLE	1382	PROTOTYPES: DISABLE
1154		1383
1155	BOOT:	1384	BOOT:
1156	{	1385	{
1157	#ifdef USE_ITHREADS	1386	#ifdef USE_ITHREADS
1158	MUTEX_INIT (&coro_mutex);	1387	MUTEX_INIT (&coro_mutex);
1159	#endif	1388	#endif
1160	BOOT_PAGESIZE;	1389	BOOT_PAGESIZE;
1161		1390
		1391	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1392	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1393
1162	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1394	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1163		1395
		1396	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1397	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1164	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1398	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1165	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1166	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1167	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1168	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1399	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1169		1400
1170	main_mainstack = PL_mainstack;	1401	main_mainstack = PL_mainstack;
		1402	main_top_env = PL_top_env;
		1403
		1404	while (main_top_env->je_prev)
		1405	main_top_env = main_top_env->je_prev;
1171		1406
1172	coroapi.ver = CORO_API_VERSION;	1407	coroapi.ver = CORO_API_VERSION;
1173	coroapi.transfer = api_transfer;	1408	coroapi.transfer = api_transfer;
1174		1409
1175	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1410	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1182	struct coro *coro;	1417	struct coro *coro;
1183	HV *hv;	1418	HV *hv;
1184	int i;	1419	int i;
1185		1420
1186	Newz (0, coro, 1, struct coro);	1421	Newz (0, coro, 1, struct coro);
1187	coro->args = newAV ();	1422	coro->args = newAV ();
1188	coro->save = CORO_SAVE_ALL;
1189	coro->flags = CF_NEW;	1423	coro->flags = CF_NEW;
1190		1424
		1425	if (coro_first) coro_first->prev = coro;
		1426	coro->next = coro_first;
		1427	coro_first = coro;
		1428
1191	hv = newHV ();	1429	coro->hv = hv = newHV ();
1192	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1430	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1193	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1431	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1194		1432
		1433	av_extend (coro->args, items - 1);
		1434
1195	for (i = 1; i < items; i++)	1435	for (i = 1; i < items; i++)
1196	av_push (coro->args, newSVsv (ST (i)));	1436	av_push (coro->args, newSVsv (ST (i)));
1197	}	1437	}
1198	OUTPUT:	1438	OUTPUT:
1199	RETVAL	1439	RETVAL
1200		1440
1201	int	1441	# these not obviously related functions are all rolled into the same xs
1202	save (SV *coro, int new_save = -1)	1442	# function to increase chances that they all will call transfer with the same
1203	CODE:	1443	# stack offset
1204	RETVAL = api_save (coro, new_save);
1205	OUTPUT:
1206	RETVAL
1207
1208	void	1444	void
1209	_set_stacklevel (...)	1445	_set_stacklevel (...)
1210	ALIAS:	1446	ALIAS:
1211	Coro::State::transfer = 1	1447	Coro::State::transfer = 1
1212	Coro::schedule = 2	1448	Coro::schedule = 2
…		…
1287	CODE:	1523	CODE:
1288	RETVAL = cctx_idle;	1524	RETVAL = cctx_idle;
1289	OUTPUT:	1525	OUTPUT:
1290	RETVAL	1526	RETVAL
1291		1527
		1528	void
		1529	list ()
		1530	PPCODE:
		1531	{
		1532	struct coro *coro;
		1533	for (coro = coro_first; coro; coro = coro->next)
		1534	if (coro->hv)
		1535	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1536	}
		1537
		1538	void
		1539	call (Coro::State coro, SV *coderef)
		1540	ALIAS:
		1541	eval = 1
		1542	CODE:
		1543	{
		1544	if (coro->mainstack)
		1545	{
		1546	struct coro temp;
		1547	Zero (&temp, 1, struct coro);
		1548
		1549	if (!(coro->flags & CF_RUNNING))
		1550	{
		1551	save_perl (aTHX_ &temp);
		1552	load_perl (aTHX_ coro);
		1553	}
		1554
		1555	{
		1556	dSP;
		1557	ENTER;
		1558	SAVETMPS;
		1559	PUSHMARK (SP);
		1560	PUTBACK;
		1561	if (ix)
		1562	eval_sv (coderef, 0);
		1563	else
		1564	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1565	SPAGAIN;
		1566	FREETMPS;
		1567	LEAVE;
		1568	PUTBACK;
		1569	}
		1570
		1571	if (!(coro->flags & CF_RUNNING))
		1572	{
		1573	save_perl (aTHX_ coro);
		1574	load_perl (aTHX_ &temp);
		1575	}
		1576	}
		1577	}
		1578
		1579	SV *
		1580	is_ready (Coro::State coro)
		1581	PROTOTYPE: $
		1582	ALIAS:
		1583	is_ready = CF_READY
		1584	is_running = CF_RUNNING
		1585	is_new = CF_NEW
		1586	is_destroyed = CF_DESTROYED
		1587	CODE:
		1588	RETVAL = boolSV (coro->flags & ix);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	void
		1593	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1594
		1595	SV *
		1596	has_stack (Coro::State coro)
		1597	PROTOTYPE: $
		1598	CODE:
		1599	RETVAL = boolSV (!!coro->cctx);
		1600	OUTPUT:
		1601	RETVAL
		1602
		1603	int
		1604	is_traced (Coro::State coro)
		1605	PROTOTYPE: $
		1606	CODE:
		1607	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1608	OUTPUT:
		1609	RETVAL
		1610
		1611	IV
		1612	rss (Coro::State coro)
		1613	PROTOTYPE: $
		1614	ALIAS:
		1615	usecount = 1
		1616	CODE:
		1617	switch (ix)
		1618	{
		1619	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1620	case 1: RETVAL = coro->usecount; break;
		1621	}
		1622	OUTPUT:
		1623	RETVAL
		1624
		1625
1292	MODULE = Coro::State PACKAGE = Coro	1626	MODULE = Coro::State PACKAGE = Coro
1293		1627
1294	BOOT:	1628	BOOT:
1295	{	1629	{
1296	int i;	1630	int i;
		1631
		1632	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1633	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1634	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1635
		1636	coro_current = get_sv ("Coro::current", FALSE);
		1637	SvREADONLY_on (coro_current);
1297		1638
1298	coro_stash = gv_stashpv ("Coro", TRUE);	1639	coro_stash = gv_stashpv ("Coro", TRUE);
1299		1640
1300	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1641	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1301	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1642	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1302	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1643	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1303	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1644	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1304	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1645	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1305	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1646	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1306		1647
1307	coro_current = get_sv ("Coro::current", FALSE);
1308	SvREADONLY_on (coro_current);
1309
1310	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1648	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1311	coro_ready[i] = newAV ();	1649	coro_ready[i] = newAV ();
1312		1650
1313	{	1651	{
1314	SV *sv = perl_get_sv("Coro::API", 1);	1652	SV *sv = perl_get_sv("Coro::API", 1);
1315		1653
1316	coroapi.schedule = api_schedule;	1654	coroapi.schedule = api_schedule;
1317	coroapi.save = api_save;
1318	coroapi.cede = api_cede;	1655	coroapi.cede = api_cede;
1319	coroapi.cede_notself = api_cede_notself;	1656	coroapi.cede_notself = api_cede_notself;
1320	coroapi.ready = api_ready;	1657	coroapi.ready = api_ready;
1321	coroapi.is_ready = api_is_ready;	1658	coroapi.is_ready = api_is_ready;
1322	coroapi.nready = &coro_nready;	1659	coroapi.nready = &coro_nready;
…		…
1363	CODE:	1700	CODE:
1364	RETVAL = boolSV (api_ready (self));	1701	RETVAL = boolSV (api_ready (self));
1365	OUTPUT:	1702	OUTPUT:
1366	RETVAL	1703	RETVAL
1367		1704
1368	SV *
1369	is_ready (SV *self)
1370	PROTOTYPE: $
1371	CODE:
1372	RETVAL = boolSV (api_is_ready (self));
1373	OUTPUT:
1374	RETVAL
1375
1376	int	1705	int
1377	nready (...)	1706	nready (...)
1378	PROTOTYPE:	1707	PROTOTYPE:
1379	CODE:	1708	CODE:
1380	RETVAL = coro_nready;	1709	RETVAL = coro_nready;
1381	OUTPUT:	1710	OUTPUT:
1382	RETVAL	1711	RETVAL
1383		1712
		1713	# for async_pool speedup
		1714	void
		1715	_pool_1 (SV *cb)
		1716	CODE:
		1717	{
		1718	struct coro *coro = SvSTATE (coro_current);
		1719	HV hv = (HV )SvRV (coro_current);
		1720	AV *defav = GvAV (PL_defgv);
		1721	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1722	AV *invoke_av;
		1723	int i, len;
		1724
		1725	if (!invoke)
		1726	croak ("\3terminate\2\n");
		1727
		1728	SvREFCNT_dec (coro->saved_deffh);
		1729	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1730
		1731	hv_store (hv, "desc", sizeof ("desc") - 1,
		1732	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1733
		1734	invoke_av = (AV *)SvRV (invoke);
		1735	len = av_len (invoke_av);
		1736
		1737	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1738
		1739	if (len > 0)
		1740	{
		1741	av_fill (defav, len - 1);
		1742	for (i = 0; i < len; ++i)
		1743	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1744	}
		1745
		1746	SvREFCNT_dec (invoke);
		1747	}
		1748
		1749	void
		1750	_pool_2 (SV *cb)
		1751	CODE:
		1752	{
		1753	struct coro *coro = SvSTATE (coro_current);
		1754
		1755	sv_setsv (cb, &PL_sv_undef);
		1756
		1757	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1758	coro->saved_deffh = 0;
		1759
		1760	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1761	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1762	croak ("\3terminate\2\n");
		1763
		1764	av_clear (GvAV (PL_defgv));
		1765	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1766	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1767
		1768	coro->prio = 0;
		1769
		1770	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1771	api_trace (coro_current, 0);
		1772
		1773	av_push (av_async_pool, newSVsv (coro_current));
		1774	}
		1775
		1776
1384	MODULE = Coro::State PACKAGE = Coro::AIO	1777	MODULE = Coro::State PACKAGE = Coro::AIO
1385		1778
1386	SV *	1779	SV *
1387	_get_state ()	1780	_get_state ()
1388	CODE:	1781	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs. Revision 1.192 by root, Fri Oct 5 21:51:40 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.192 by root, Fri Oct 5 21:51:40 2007 UTC