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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.147 by root, Mon Mar 19 15:50:48 2007 UTC vs.
Revision 1.188 by root, Fri Oct 5 20:36:31 2007 UTC

…		…
88	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
89	#ifndef CORO_PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
90	# define CORO_PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
91	#endif	91	#endif
92		92
93	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* 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	94	* portable way as possible. */
95	* and should be unique. */
96	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
97	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
98		97
99	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
100		99
101	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
129	};	128	};
130		129
131	static size_t coro_stacksize = CORO_STACKSIZE;	130	static size_t coro_stacksize = CORO_STACKSIZE;
132	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
133	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
136		136
		137	static GV irsgv; / $/ */
		138	static GV stdoutgv; / STDOUT */
		139
		140	/* async_pool helper stuff */
		141	static SV *sv_pool_rss;
		142	static SV *sv_pool_size;
		143	static AV *av_async_pool;
		144
137	static struct coro_cctx *cctx_first;	145	static struct coro_cctx *cctx_first;
138	static int cctx_count, cctx_idle;	146	static int cctx_count, cctx_idle;
		147
		148	enum {
		149	CC_MAPPED = 0x01,
		150	CC_NOREUSE = 0x02, /* throw this away after tracing */
		151	CC_TRACE = 0x04,
		152	CC_TRACE_SUB = 0x08, /* trace sub calls */
		153	CC_TRACE_LINE = 0x10, /* trace each statement */
		154	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		155	};
139		156
140	/* this is a structure representing a c-level coroutine */	157	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	158	typedef struct coro_cctx {
142	struct coro_cctx *next;	159	struct coro_cctx *next;
143		160
…		…
152	coro_context cctx;	169	coro_context cctx;
153		170
154	#if CORO_USE_VALGRIND	171	#if CORO_USE_VALGRIND
155	int valgrind_id;	172	int valgrind_id;
156	#endif	173	#endif
157	char inuse, mapped;	174	unsigned char flags;
158	} coro_cctx;	175	} coro_cctx;
159		176
160	enum {	177	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	178	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	179	CF_READY = 0x0002, /* coroutine is ready */
…		…
170	coro_cctx *cctx;	187	coro_cctx *cctx;
171		188
172	/* data associated with this coroutine (initial args) */	189	/* data associated with this coroutine (initial args) */
173	AV *args;	190	AV *args;
174	int refcnt;	191	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	192	int flags; /* CF_ flags */
177		193
178	/* optionally saved, might be zero */	194	/* optionally saved, might be zero */
179	AV defav; / @_ */	195	AV defav; / @_ */
180	SV defsv; / $_ */	196	SV defsv; / $_ */
181	SV errsv; / $@ */	197	SV errsv; / $@ */
182	GV deffh; / default filehandle */	198	SV deffh; / default filehandle */
183	SV irssv; / $/ */	199	SV irssv; / $/ */
184	SV irssv_sv; / real $/ cache */	200	SV irssv_sv; / real $/ cache */
185		201
186	#define VAR(name,type) type name;	202	#define VAR(name,type) type name;
187	# include "state.h"	203	# include "state.h"
188	#undef VAR	204	#undef VAR
189		205
		206	/* statistics */
		207	int usecount; /* number of transfers to this coro */
		208
190	/* coro process data */	209	/* coro process data */
191	int prio;	210	int prio;
		211	//SV *throw;
		212
		213	/* async_pool */
		214	SV *saved_deffh;
		215
		216	/* linked list */
		217	struct coro next, prev;
		218	HV hv; / the perl hash associated with this coro, if any */
192	};	219	};
193		220
194	typedef struct coro *Coro__State;	221	typedef struct coro *Coro__State;
195	typedef struct coro *Coro__State_or_hashref;	222	typedef struct coro *Coro__State_or_hashref;
196		223
…		…
205		232
206	/* for Coro.pm */	233	/* for Coro.pm */
207	static SV *coro_current;	234	static SV *coro_current;
208	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	235	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
209	static int coro_nready;	236	static int coro_nready;
		237	static struct coro *coro_first;
210		238
211	/ lowlevel stuff ********************************************************/	239	/ lowlevel stuff ********************************************************/
212		240
213	static AV *	241	static AV *
214	coro_clone_padlist (pTHX_ CV *cv)	242	coro_clone_padlist (pTHX_ CV *cv)
…		…
279	SvMAGIC (cv) \	307	SvMAGIC (cv) \
280	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	308	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
281	? SvMAGIC (cv) \	309	? SvMAGIC (cv) \
282	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	310	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
283	: 0	311	: 0
		312
		313	static struct coro *
		314	SvSTATE_ (pTHX_ SV *coro)
		315	{
		316	HV *stash;
		317	MAGIC *mg;
		318
		319	if (SvROK (coro))
		320	coro = SvRV (coro);
		321
		322	if (SvTYPE (coro) != SVt_PVHV)
		323	croak ("Coro::State object required");
		324
		325	stash = SvSTASH (coro);
		326	if (stash != coro_stash && stash != coro_state_stash)
		327	{
		328	/* very slow, but rare, check */
		329	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		330	croak ("Coro::State object required");
		331	}
		332
		333	mg = CORO_MAGIC (coro);
		334	return (struct coro *)mg->mg_ptr;
		335	}
		336
		337	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
284		338
285	/* the next two functions merely cache the padlists */	339	/* the next two functions merely cache the padlists */
286	static void	340	static void
287	get_padlist (pTHX_ CV *cv)	341	get_padlist (pTHX_ CV *cv)
288	{	342	{
…		…
327	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	381	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
328	}	382	}
329		383
330	/ load & save, init *****************************************************/	384	/ load & save, init *****************************************************/
331		385
332	#define SB do {
333	#define SE } while (0)
334
335	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
336
337	static void	386	static void
338	load_perl (pTHX_ Coro__State c)	387	load_perl (pTHX_ Coro__State c)
339	{	388	{
340	#define VAR(name,type) PL_ ## name = c->name;	389	#define VAR(name,type) PL_ ## name = c->name;
341	# include "state.h"	390	# include "state.h"
342	#undef VAR	391	#undef VAR
343		392
344	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	393	GvSV (PL_defgv) = c->defsv;
345	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	394	GvAV (PL_defgv) = c->defav;
346	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	395	GvSV (PL_errgv) = c->errsv;
347	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	396	GvSV (irsgv) = c->irssv_sv;
348
349	if (c->irssv)
350	{
351	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
352	{
353	SvREFCNT_dec (c->irssv);
354	c->irssv = 0;
355	}
356	else
357	{
358	REPLACE_SV (PL_rs, c->irssv);
359	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
360	sv_setsv (c->irssv_sv, PL_rs);
361	}
362	}
363		397
364	{	398	{
365	dSP;	399	dSP;
366	CV *cv;	400	CV *cv;
367		401
…		…
373	CvPADLIST (cv) = (AV *)POPs;	407	CvPADLIST (cv) = (AV *)POPs;
374	}	408	}
375		409
376	PUTBACK;	410	PUTBACK;
377	}	411	}
378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
379	}	412	}
380		413
381	static void	414	static void
382	save_perl (pTHX_ Coro__State c)	415	save_perl (pTHX_ Coro__State c)
383	{	416	{
384	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
385	{	417	{
386	dSP;	418	dSP;
387	I32 cxix = cxstack_ix;	419	I32 cxix = cxstack_ix;
388	PERL_CONTEXT *ccstk = cxstack;	420	PERL_CONTEXT *ccstk = cxstack;
389	PERL_SI *top_si = PL_curstackinfo;	421	PERL_SI *top_si = PL_curstackinfo;
…		…
391	/*	423	/*
392	* the worst thing you can imagine happens first - we have to save	424	* the worst thing you can imagine happens first - we have to save
393	* (and reinitialize) all cv's in the whole callchain :(	425	* (and reinitialize) all cv's in the whole callchain :(
394	*/	426	*/
395		427
396	EXTEND (SP, 3 + 1);
397	PUSHs (Nullsv);	428	XPUSHs (Nullsv);
398	/* this loop was inspired by pp_caller */	429	/* this loop was inspired by pp_caller */
399	for (;;)	430	for (;;)
400	{	431	{
401	while (cxix >= 0)	432	while (cxix >= 0)
402	{	433	{
403	PERL_CONTEXT *cx = &ccstk[cxix--];	434	PERL_CONTEXT *cx = &ccstk[cxix--];
404		435
405	if (CxTYPE (cx) == CXt_SUB)	436	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
406	{	437	{
407	CV *cv = cx->blk_sub.cv;	438	CV *cv = cx->blk_sub.cv;
408		439
409	if (CvDEPTH (cv))	440	if (CvDEPTH (cv))
410	{	441	{
…		…
421		452
422	if (top_si->si_type == PERLSI_MAIN)	453	if (top_si->si_type == PERLSI_MAIN)
423	break;	454	break;
424		455
425	top_si = top_si->si_prev;	456	top_si = top_si->si_prev;
426	ccstk = top_si->si_cxstack;	457	ccstk = top_si->si_cxstack;
427	cxix = top_si->si_cxix;	458	cxix = top_si->si_cxix;
428	}	459	}
429		460
430	PUTBACK;	461	PUTBACK;
431	}	462	}
432		463
433	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	464	c->defav = GvAV (PL_defgv);
434	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	465	c->defsv = DEFSV;
435	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	466	c->errsv = ERRSV;
436	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	467	c->irssv_sv = GvSV (irsgv);
437	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
438		468
439	#define VAR(name,type)c->name = PL_ ## name;	469	#define VAR(name,type)c->name = PL_ ## name;
440	# include "state.h"	470	# include "state.h"
441	#undef VAR	471	#undef VAR
442	}	472	}
…		…
451	# define coro_init_stacks init_stacks	481	# define coro_init_stacks init_stacks
452	#else	482	#else
453	static void	483	static void
454	coro_init_stacks (pTHX)	484	coro_init_stacks (pTHX)
455	{	485	{
456	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	486	PL_curstackinfo = new_stackinfo(64, 6);
457	PL_curstackinfo->si_type = PERLSI_MAIN;	487	PL_curstackinfo->si_type = PERLSI_MAIN;
458	PL_curstack = PL_curstackinfo->si_stack;	488	PL_curstack = PL_curstackinfo->si_stack;
459	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	489	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460		490
461	PL_stack_base = AvARRAY(PL_curstack);	491	PL_stack_base = AvARRAY(PL_curstack);
462	PL_stack_sp = PL_stack_base;	492	PL_stack_sp = PL_stack_base;
463	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	493	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
464		494
465	New(50,PL_tmps_stack,128,SV*);	495	New(50,PL_tmps_stack,64,SV*);
466	PL_tmps_floor = -1;	496	PL_tmps_floor = -1;
467	PL_tmps_ix = -1;	497	PL_tmps_ix = -1;
468	PL_tmps_max = 128;	498	PL_tmps_max = 64;
469		499
470	New(54,PL_markstack,32,I32);	500	New(54,PL_markstack,16,I32);
471	PL_markstack_ptr = PL_markstack;	501	PL_markstack_ptr = PL_markstack;
472	PL_markstack_max = PL_markstack + 32;	502	PL_markstack_max = PL_markstack + 16;
473		503
474	#ifdef SET_MARK_OFFSET	504	#ifdef SET_MARK_OFFSET
475	SET_MARK_OFFSET;	505	SET_MARK_OFFSET;
476	#endif	506	#endif
477		507
478	New(54,PL_scopestack,32,I32);	508	New(54,PL_scopestack,16,I32);
479	PL_scopestack_ix = 0;	509	PL_scopestack_ix = 0;
480	PL_scopestack_max = 32;	510	PL_scopestack_max = 16;
481		511
482	New(54,PL_savestack,64,ANY);	512	New(54,PL_savestack,64,ANY);
483	PL_savestack_ix = 0;	513	PL_savestack_ix = 0;
484	PL_savestack_max = 64;	514	PL_savestack_max = 64;
485		515
486	#if !PERL_VERSION_ATLEAST (5,9,0)	516	#if !PERL_VERSION_ATLEAST (5,9,0)
487	New(54,PL_retstack,16,OP*);	517	New(54,PL_retstack,4,OP*);
488	PL_retstack_ix = 0;	518	PL_retstack_ix = 0;
489	PL_retstack_max = 16;	519	PL_retstack_max = 4;
490	#endif	520	#endif
491	}	521	}
492	#endif	522	#endif
493		523
494	/*	524	/*
495	* destroy the stacks, the callchain etc...	525	* destroy the stacks, the callchain etc...
496	*/	526	*/
497	static void	527	static void
498	coro_destroy_stacks (pTHX)	528	coro_destroy_stacks (pTHX)
499	{	529	{
500	if (!IN_DESTRUCT)
501	{
502	/* restore all saved variables and stuff */
503	LEAVE_SCOPE (0);
504	assert (PL_tmps_floor == -1);
505
506	/* free all temporaries */
507	FREETMPS;
508	assert (PL_tmps_ix == -1);
509
510	/* unwind all extra stacks */
511	POPSTACK_TO (PL_mainstack);
512
513	/* unwind main stack */
514	dounwind (-1);
515	}
516
517	while (PL_curstackinfo->si_next)	530	while (PL_curstackinfo->si_next)
518	PL_curstackinfo = PL_curstackinfo->si_next;	531	PL_curstackinfo = PL_curstackinfo->si_next;
519		532
520	while (PL_curstackinfo)	533	while (PL_curstackinfo)
521	{	534	{
…		…
536	#if !PERL_VERSION_ATLEAST (5,9,0)	549	#if !PERL_VERSION_ATLEAST (5,9,0)
537	Safefree (PL_retstack);	550	Safefree (PL_retstack);
538	#endif	551	#endif
539	}	552	}
540		553
		554	static size_t
		555	coro_rss (pTHX_ struct coro *coro)
		556	{
		557	size_t rss = sizeof (*coro);
		558
		559	if (coro->mainstack)
		560	{
		561	if (coro->flags & CF_RUNNING)
		562	{
		563	#define VAR(name,type)coro->name = PL_ ## name;
		564	# include "state.h"
		565	#undef VAR
		566	}
		567
		568	rss += sizeof (coro->curstackinfo);
		569	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		570	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		571	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		572	rss += coro->tmps_max * sizeof (SV *);
		573	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		574	rss += coro->scopestack_max * sizeof (I32);
		575	rss += coro->savestack_max * sizeof (ANY);
		576
		577	#if !PERL_VERSION_ATLEAST (5,9,0)
		578	rss += coro->retstack_max * sizeof (OP *);
		579	#endif
		580	}
		581
		582	return rss;
		583	}
		584
541	/ coroutine stack handling **********************************************/	585	/ coroutine stack handling **********************************************/
542		586
543	static void	587	static void
544	setup_coro (pTHX_ struct coro *coro)	588	coro_setup (pTHX_ struct coro *coro)
545	{	589	{
546	/*	590	/*
547	* emulate part of the perl startup here.	591	* emulate part of the perl startup here.
548	*/	592	*/
549	coro_init_stacks (aTHX);	593	coro_init_stacks (aTHX);
550		594
		595	PL_runops = RUNOPS_DEFAULT;
551	PL_curcop = &PL_compiling;	596	PL_curcop = &PL_compiling;
552	PL_in_eval = EVAL_NULL;	597	PL_in_eval = EVAL_NULL;
553	PL_comppad = 0;	598	PL_comppad = 0;
554	PL_curpm = 0;	599	PL_curpm = 0;
555	PL_localizing = 0;	600	PL_localizing = 0;
556	PL_dirty = 0;	601	PL_dirty = 0;
557	PL_restartop = 0;	602	PL_restartop = 0;
		603
		604	GvSV (PL_defgv) = NEWSV (0, 0);
		605	GvAV (PL_defgv) = coro->args; coro->args = 0;
		606	GvSV (PL_errgv) = NEWSV (0, 0);
		607	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		608	PL_rs = newSVsv (GvSV (irsgv));
		609	PL_defoutgv = SvREFCNT_inc (stdoutgv);
558		610
559	{	611	{
560	dSP;	612	dSP;
561	LOGOP myop;	613	LOGOP myop;
562		614
563	SvREFCNT_dec (GvAV (PL_defgv));
564	GvAV (PL_defgv) = coro->args; coro->args = 0;
565
566	Zero (&myop, 1, LOGOP);	615	Zero (&myop, 1, LOGOP);
567	myop.op_next = Nullop;	616	myop.op_next = Nullop;
568	myop.op_flags = OPf_WANT_VOID;	617	myop.op_flags = OPf_WANT_VOID;
569		618
570	PUSHMARK (SP);	619	PUSHMARK (SP);
571	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	620	XPUSHs (av_shift (GvAV (PL_defgv)));
572	PUTBACK;	621	PUTBACK;
573	PL_op = (OP *)&myop;	622	PL_op = (OP *)&myop;
574	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	623	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
575	SPAGAIN;	624	SPAGAIN;
576	}	625	}
577		626
578	ENTER; /* necessary e.g. for dounwind */	627	ENTER; /* necessary e.g. for dounwind */
579	}	628	}
580		629
581	static void	630	static void
		631	coro_destroy (pTHX_ struct coro *coro)
		632	{
		633	if (!IN_DESTRUCT)
		634	{
		635	/* restore all saved variables and stuff */
		636	LEAVE_SCOPE (0);
		637	assert (PL_tmps_floor == -1);
		638
		639	/* free all temporaries */
		640	FREETMPS;
		641	assert (PL_tmps_ix == -1);
		642
		643	/* unwind all extra stacks */
		644	POPSTACK_TO (PL_mainstack);
		645
		646	/* unwind main stack */
		647	dounwind (-1);
		648	}
		649
		650	SvREFCNT_dec (GvSV (PL_defgv));
		651	SvREFCNT_dec (GvAV (PL_defgv));
		652	SvREFCNT_dec (GvSV (PL_errgv));
		653	SvREFCNT_dec (PL_defoutgv);
		654	SvREFCNT_dec (PL_rs);
		655	SvREFCNT_dec (GvSV (irsgv));
		656
		657	SvREFCNT_dec (coro->saved_deffh);
		658	//SvREFCNT_dec (coro->throw);
		659
		660	coro_destroy_stacks (aTHX);
		661	}
		662
		663	static void
582	free_coro_mortal (pTHX)	664	free_coro_mortal (pTHX)
583	{	665	{
584	if (coro_mortal)	666	if (coro_mortal)
585	{	667	{
586	SvREFCNT_dec (coro_mortal);	668	SvREFCNT_dec (coro_mortal);
587	coro_mortal = 0;	669	coro_mortal = 0;
588	}	670	}
589	}	671	}
590		672
		673	static int
		674	runops_trace (pTHX)
		675	{
		676	COP *oldcop = 0;
		677	int oldcxix = -2;
		678	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		679	coro_cctx *cctx = coro->cctx;
		680
		681	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		682	{
		683	PERL_ASYNC_CHECK ();
		684
		685	if (cctx->flags & CC_TRACE_ALL)
		686	{
		687	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		688	{
		689	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		690	SV bot, top;
		691	AV av = newAV (); / return values */
		692	SV **cb;
		693	dSP;
		694
		695	GV *gv = CvGV (cx->blk_sub.cv);
		696	SV *fullname = sv_2mortal (newSV (0));
		697	if (isGV (gv))
		698	gv_efullname3 (fullname, gv, 0);
		699
		700	bot = PL_stack_base + cx->blk_oldsp + 1;
		701	top = cx->blk_gimme == G_ARRAY ? SP + 1
		702	: cx->blk_gimme == G_SCALAR ? bot + 1
		703	: bot;
		704
		705	while (bot < top)
		706	av_push (av, SvREFCNT_inc (*bot++));
		707
		708	PL_runops = RUNOPS_DEFAULT;
		709	ENTER;
		710	SAVETMPS;
		711	EXTEND (SP, 3);
		712	PUSHMARK (SP);
		713	PUSHs (&PL_sv_no);
		714	PUSHs (fullname);
		715	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		716	PUTBACK;
		717	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		718	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		719	SPAGAIN;
		720	FREETMPS;
		721	LEAVE;
		722	PL_runops = runops_trace;
		723	}
		724
		725	if (oldcop != PL_curcop)
		726	{
		727	oldcop = PL_curcop;
		728
		729	if (PL_curcop != &PL_compiling)
		730	{
		731	SV **cb;
		732
		733	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		734	{
		735	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		736
		737	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		738	{
		739	runops_proc_t old_runops = PL_runops;
		740	dSP;
		741	GV *gv = CvGV (cx->blk_sub.cv);
		742	SV *fullname = sv_2mortal (newSV (0));
		743
		744	if (isGV (gv))
		745	gv_efullname3 (fullname, gv, 0);
		746
		747	PL_runops = RUNOPS_DEFAULT;
		748	ENTER;
		749	SAVETMPS;
		750	EXTEND (SP, 3);
		751	PUSHMARK (SP);
		752	PUSHs (&PL_sv_yes);
		753	PUSHs (fullname);
		754	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		755	PUTBACK;
		756	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		757	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		758	SPAGAIN;
		759	FREETMPS;
		760	LEAVE;
		761	PL_runops = runops_trace;
		762	}
		763
		764	oldcxix = cxstack_ix;
		765	}
		766
		767	if (cctx->flags & CC_TRACE_LINE)
		768	{
		769	dSP;
		770
		771	PL_runops = RUNOPS_DEFAULT;
		772	ENTER;
		773	SAVETMPS;
		774	EXTEND (SP, 3);
		775	PL_runops = RUNOPS_DEFAULT;
		776	PUSHMARK (SP);
		777	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		778	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		779	PUTBACK;
		780	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		781	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		782	SPAGAIN;
		783	FREETMPS;
		784	LEAVE;
		785	PL_runops = runops_trace;
		786	}
		787	}
		788	}
		789	}
		790	}
		791
		792	TAINT_NOT;
		793	return 0;
		794	}
		795
591	/* inject a fake call to Coro::State::_cctx_init into the execution */	796	/* inject a fake call to Coro::State::_cctx_init into the execution */
		797	/* _cctx_init should be careful, as it could be called at almost any time */
		798	/* during execution of a perl program */
592	static void NOINLINE	799	static void NOINLINE
593	prepare_cctx (pTHX_ coro_cctx *cctx)	800	prepare_cctx (pTHX_ coro_cctx *cctx)
594	{	801	{
595	dSP;	802	dSP;
596	LOGOP myop;	803	LOGOP myop;
		804
		805	PL_top_env = &PL_start_env;
		806
		807	if (cctx->flags & CC_TRACE)
		808	PL_runops = runops_trace;
597		809
598	Zero (&myop, 1, LOGOP);	810	Zero (&myop, 1, LOGOP);
599	myop.op_next = PL_op;	811	myop.op_next = PL_op;
600	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	812	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
601		813
…		…
607	PL_op = (OP *)&myop;	819	PL_op = (OP *)&myop;
608	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	820	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
609	SPAGAIN;	821	SPAGAIN;
610	}	822	}
611		823
		824	/*
		825	* this is a _very_ stripped down perl interpreter ;)
		826	*/
612	static void	827	static void
613	coro_run (void *arg)	828	coro_run (void *arg)
614	{	829	{
615	dTHX;	830	dTHX;
616		831
617	/* coro_run is the alternative tail of transfer(), so unlock here. */	832	/* coro_run is the alternative tail of transfer(), so unlock here. */
618	UNLOCK;	833	UNLOCK;
619		834
620	/*	835	/* we now skip the entersub that lead to transfer() */
621	* this is a _very_ stripped down perl interpreter ;)	836	PL_op = PL_op->op_next;
622	*/
623	PL_top_env = &PL_start_env;
624		837
625	/* inject call to cctx_init */	838	/* inject a fake subroutine call to cctx_init */
626	prepare_cctx (aTHX_ (coro_cctx *)arg);	839	prepare_cctx (aTHX_ (coro_cctx *)arg);
627		840
628	/* somebody will hit me for both perl_run and PL_restartop */	841	/* somebody or something will hit me for both perl_run and PL_restartop */
629	PL_restartop = PL_op;	842	PL_restartop = PL_op;
630	perl_run (PL_curinterp);	843	perl_run (PL_curinterp);
631		844
632	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	845	/*
633	abort ();	846	* If perl-run returns we assume exit() was being called or the coro
		847	* fell off the end, which seems to be the only valid (non-bug)
		848	* reason for perl_run to return. We try to exit by jumping to the
		849	* bootstrap-time "top" top_env, as we cannot restore the "main"
		850	* coroutine as Coro has no such concept
		851	*/
		852	PL_top_env = main_top_env;
		853	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
634	}	854	}
635		855
636	static coro_cctx *	856	static coro_cctx *
637	cctx_new ()	857	cctx_new ()
638	{	858	{
…		…
655	# if CORO_STACKGUARD	875	# if CORO_STACKGUARD
656	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	876	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
657	# endif	877	# endif
658	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	878	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
659	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	879	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
660	cctx->mapped = 1;	880	cctx->flags \|= CC_MAPPED;
661	}	881	}
662	else	882	else
663	#endif	883	#endif
664	{	884	{
665	cctx->ssize = coro_stacksize * (long)sizeof (long);	885	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
692	#if CORO_USE_VALGRIND	912	#if CORO_USE_VALGRIND
693	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	913	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694	#endif	914	#endif
695		915
696	#if HAVE_MMAP	916	#if HAVE_MMAP
697	if (cctx->mapped)	917	if (cctx->flags & CC_MAPPED)
698	munmap (cctx->sptr, cctx->ssize);	918	munmap (cctx->sptr, cctx->ssize);
699	else	919	else
700	#endif	920	#endif
701	Safefree (cctx->sptr);	921	Safefree (cctx->sptr);
702		922
…		…
710	{	930	{
711	coro_cctx *cctx = cctx_first;	931	coro_cctx *cctx = cctx_first;
712	cctx_first = cctx->next;	932	cctx_first = cctx->next;
713	--cctx_idle;	933	--cctx_idle;
714		934
715	if (cctx->ssize >= coro_stacksize)	935	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
716	return cctx;	936	return cctx;
717		937
718	cctx_destroy (cctx);	938	cctx_destroy (cctx);
719	}	939	}
720		940
721	PL_op = PL_op->op_next;
722	return cctx_new ();	941	return cctx_new ();
723	}	942	}
724		943
725	static void	944	static void
726	cctx_put (coro_cctx *cctx)	945	cctx_put (coro_cctx *cctx)
…		…
730	{	949	{
731	coro_cctx *first = cctx_first;	950	coro_cctx *first = cctx_first;
732	cctx_first = first->next;	951	cctx_first = first->next;
733	--cctx_idle;	952	--cctx_idle;
734		953
735	assert (!first->inuse);
736	cctx_destroy (first);	954	cctx_destroy (first);
737	}	955	}
738		956
739	++cctx_idle;	957	++cctx_idle;
740	cctx->next = cctx_first;	958	cctx->next = cctx_first;
741	cctx_first = cctx;	959	cctx_first = cctx;
742	}	960	}
743		961
744	/ coroutine switching ***************************************************/	962	/ coroutine switching ***************************************************/
745		963
746	/* never call directly, always through the coro_state_transfer global variable */	964	static void NOINLINE
		965	transfer_check (pTHX_ struct coro prev, struct coro next)
		966	{
		967	if (prev != next)
		968	{
		969	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		970	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		971
		972	if (next->flags & CF_RUNNING)
		973	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		974
		975	if (next->flags & CF_DESTROYED)
		976	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		977
		978	if (PL_lex_state != LEX_NOTPARSING)
		979	croak ("Coro::State::transfer called while parsing, but this is not supported");
		980	}
		981	}
		982
		983	/* always use the TRANSFER macro */
747	static void NOINLINE	984	static void NOINLINE
748	transfer (pTHX_ struct coro prev, struct coro next)	985	transfer (pTHX_ struct coro prev, struct coro next)
749	{	986	{
750	dSTACKLEVEL;	987	dSTACKLEVEL;
751		988
…		…
761		998
762	if (prev->flags & CF_NEW)	999	if (prev->flags & CF_NEW)
763	{	1000	{
764	/* create a new empty context */	1001	/* create a new empty context */
765	Newz (0, prev->cctx, 1, coro_cctx);	1002	Newz (0, prev->cctx, 1, coro_cctx);
766	prev->cctx->inuse = 1;
767	prev->flags &= ~CF_NEW;	1003	prev->flags &= ~CF_NEW;
768	prev->flags \|= CF_RUNNING;	1004	prev->flags \|= CF_RUNNING;
769	}	1005	}
770
771	/TODO: must not croak here /
772	if (!prev->flags & CF_RUNNING)
773	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
774
775	if (next->flags & CF_RUNNING)
776	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
777
778	if (next->flags & CF_DESTROYED)
779	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
780		1006
781	prev->flags &= ~CF_RUNNING;	1007	prev->flags &= ~CF_RUNNING;
782	next->flags \|= CF_RUNNING;	1008	next->flags \|= CF_RUNNING;
783		1009
784	LOCK;	1010	LOCK;
…		…
788	/* need to start coroutine */	1014	/* need to start coroutine */
789	next->flags &= ~CF_NEW;	1015	next->flags &= ~CF_NEW;
790	/* first get rid of the old state */	1016	/* first get rid of the old state */
791	save_perl (aTHX_ prev);	1017	save_perl (aTHX_ prev);
792	/* setup coroutine call */	1018	/* setup coroutine call */
793	setup_coro (aTHX_ next);	1019	coro_setup (aTHX_ next);
794	/* need a new stack */
795	assert (!next->cctx);
796	}	1020	}
797	else	1021	else
798	{	1022	{
799	/* coroutine already started */	1023	/* coroutine already started */
800	save_perl (aTHX_ prev);	1024	save_perl (aTHX_ prev);
…		…
802	}	1026	}
803		1027
804	prev__cctx = prev->cctx;	1028	prev__cctx = prev->cctx;
805		1029
806	/* possibly "free" the cctx */	1030	/* possibly "free" the cctx */
807	if (prev__cctx->idle_sp == STACKLEVEL)	1031	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
808	{	1032	{
809	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1033	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
810	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1034	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
811		1035
812	prev->cctx = 0;	1036	prev->cctx = 0;
813		1037
814	cctx_put (prev__cctx);	1038	cctx_put (prev__cctx);
815	prev__cctx->inuse = 0;
816	}	1039	}
817		1040
		1041	++next->usecount;
		1042
818	if (!next->cctx)	1043	if (!next->cctx)
819	{
820	next->cctx = cctx_get (aTHX);	1044	next->cctx = cctx_get (aTHX);
821	assert (!next->cctx->inuse);
822	next->cctx->inuse = 1;
823	}
824		1045
825	if (prev__cctx != next->cctx)	1046	if (prev__cctx != next->cctx)
826	{	1047	{
827	prev__cctx->top_env = PL_top_env;	1048	prev__cctx->top_env = PL_top_env;
828	PL_top_env = next->cctx->top_env;	1049	PL_top_env = next->cctx->top_env;
…		…
838	{	1059	{
839	struct coro prev, next;	1060	struct coro prev, next;
840	};	1061	};
841		1062
842	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1063	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1064	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
843		1065
844	/ high level stuff ******************************************************/	1066	/ high level stuff ******************************************************/
845		1067
846	static int	1068	static int
847	coro_state_destroy (pTHX_ struct coro *coro)	1069	coro_state_destroy (pTHX_ struct coro *coro)
…		…
864		1086
865	if (coro->mainstack && coro->mainstack != main_mainstack)	1087	if (coro->mainstack && coro->mainstack != main_mainstack)
866	{	1088	{
867	struct coro temp;	1089	struct coro temp;
868		1090
869	assert (!(coro->flags & CF_RUNNING));
870
871	Zero (&temp, 1, struct coro);
872	temp.save = CORO_SAVE_DEF;
873
874	if (coro->flags & CF_RUNNING)	1091	if (coro->flags & CF_RUNNING)
875	croak ("FATAL: tried to destroy currently running coroutine");	1092	croak ("FATAL: tried to destroy currently running coroutine");
876		1093
877	save_perl (aTHX_ &temp);	1094	save_perl (aTHX_ &temp);
878	load_perl (aTHX_ coro);	1095	load_perl (aTHX_ coro);
879		1096
880	coro_destroy_stacks (aTHX);	1097	coro_destroy (aTHX_ coro);
881		1098
882	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1099	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
883		1100
884	coro->mainstack = 0;	1101	coro->mainstack = 0;
885	}	1102	}
886		1103
887	cctx_destroy (coro->cctx);	1104	cctx_destroy (coro->cctx);
888	SvREFCNT_dec (coro->args);	1105	SvREFCNT_dec (coro->args);
889		1106
		1107	if (coro->next) coro->next->prev = coro->prev;
		1108	if (coro->prev) coro->prev->next = coro->next;
		1109	if (coro == coro_first) coro_first = coro->next;
		1110
890	return 1;	1111	return 1;
891	}	1112	}
892		1113
893	static int	1114	static int
894	coro_state_free (pTHX_ SV sv, MAGIC mg)	1115	coro_state_free (pTHX_ SV sv, MAGIC mg)
895	{	1116	{
896	struct coro coro = (struct coro )mg->mg_ptr;	1117	struct coro coro = (struct coro )mg->mg_ptr;
897	mg->mg_ptr = 0;	1118	mg->mg_ptr = 0;
		1119
		1120	coro->hv = 0;
898		1121
899	if (--coro->refcnt < 0)	1122	if (--coro->refcnt < 0)
900	{	1123	{
901	coro_state_destroy (aTHX_ coro);	1124	coro_state_destroy (aTHX_ coro);
902	Safefree (coro);	1125	Safefree (coro);
…		…
924	#else	1147	#else
925	# define MGf_DUP 0	1148	# define MGf_DUP 0
926	#endif	1149	#endif
927	};	1150	};
928		1151
929	static struct coro *
930	SvSTATE_ (pTHX_ SV *coro)
931	{
932	HV *stash;
933	MAGIC *mg;
934
935	if (SvROK (coro))
936	coro = SvRV (coro);
937
938	stash = SvSTASH (coro);
939	if (stash != coro_stash && stash != coro_state_stash)
940	{
941	/* very slow, but rare, check */
942	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
943	croak ("Coro::State object required");
944	}
945
946	mg = CORO_MAGIC (coro);
947	return (struct coro *)mg->mg_ptr;
948	}
949
950	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
951
952	static void	1152	static void
953	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1153	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
954	{	1154	{
955	ta->prev = SvSTATE (prev_sv);	1155	ta->prev = SvSTATE (prev_sv);
956	ta->next = SvSTATE (next_sv);	1156	ta->next = SvSTATE (next_sv);
		1157	TRANSFER_CHECK (*ta);
957	}	1158	}
958		1159
959	static void	1160	static void
960	api_transfer (SV prev_sv, SV next_sv)	1161	api_transfer (SV prev_sv, SV next_sv)
961	{	1162	{
962	dTHX;	1163	dTHX;
963	struct transfer_args ta;	1164	struct transfer_args ta;
964		1165
965	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1166	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
966	TRANSFER (ta);	1167	TRANSFER (ta);
967	}
968
969	static int
970	api_save (SV *coro_sv, int new_save)
971	{
972	dTHX;
973	struct coro *coro = SvSTATE (coro_sv);
974	int old_save = coro->save;
975
976	if (new_save >= 0)
977	coro->save = new_save;
978
979	return old_save;
980	}	1168	}
981		1169
982	/ Coro ******************************************************************/	1170	/ Coro ******************************************************************/
983		1171
984	static void	1172	static void
…		…
1078	break;	1266	break;
1079	}	1267	}
1080		1268
1081	/* free this only after the transfer */	1269	/* free this only after the transfer */
1082	prev_sv = SvRV (coro_current);	1270	prev_sv = SvRV (coro_current);
1083	SvRV_set (coro_current, next_sv);
1084	ta->prev = SvSTATE (prev_sv);	1271	ta->prev = SvSTATE (prev_sv);
1085		1272	TRANSFER_CHECK (*ta);
1086	assert (ta->next->flags & CF_READY);	1273	assert (ta->next->flags & CF_READY);
1087	ta->next->flags &= ~CF_READY;	1274	ta->next->flags &= ~CF_READY;
		1275	SvRV_set (coro_current, next_sv);
1088		1276
1089	LOCK;	1277	LOCK;
1090	free_coro_mortal (aTHX);	1278	free_coro_mortal (aTHX);
1091	coro_mortal = prev_sv;	1279	coro_mortal = prev_sv;
1092	UNLOCK;	1280	UNLOCK;
…		…
1153	}	1341	}
1154	else	1342	else
1155	return 0;	1343	return 0;
1156	}	1344	}
1157		1345
		1346	static void
		1347	api_trace (SV *coro_sv, int flags)
		1348	{
		1349	dTHX;
		1350	struct coro *coro = SvSTATE (coro_sv);
		1351
		1352	if (flags & CC_TRACE)
		1353	{
		1354	if (!coro->cctx)
		1355	coro->cctx = cctx_new ();
		1356	else if (!(coro->cctx->flags & CC_TRACE))
		1357	croak ("cannot enable tracing on coroutine with custom stack");
		1358
		1359	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1360	}
		1361	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1362	{
		1363	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1364
		1365	if (coro->flags & CF_RUNNING)
		1366	PL_runops = RUNOPS_DEFAULT;
		1367	else
		1368	coro->runops = RUNOPS_DEFAULT;
		1369	}
		1370	}
		1371
1158	MODULE = Coro::State PACKAGE = Coro::State	1372	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1159		1373
1160	PROTOTYPES: DISABLE	1374	PROTOTYPES: DISABLE
1161		1375
1162	BOOT:	1376	BOOT:
1163	{	1377	{
1164	#ifdef USE_ITHREADS	1378	#ifdef USE_ITHREADS
1165	MUTEX_INIT (&coro_mutex);	1379	MUTEX_INIT (&coro_mutex);
1166	#endif	1380	#endif
1167	BOOT_PAGESIZE;	1381	BOOT_PAGESIZE;
1168		1382
		1383	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1384	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1385
1169	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1386	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1170		1387
1171	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1388	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1172	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1389	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1173	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1174	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1175	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1176	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1390	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1177	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1391	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1178		1392
1179	main_mainstack = PL_mainstack;	1393	main_mainstack = PL_mainstack;
		1394	main_top_env = PL_top_env;
		1395
		1396	while (main_top_env->je_prev)
		1397	main_top_env = main_top_env->je_prev;
1180		1398
1181	coroapi.ver = CORO_API_VERSION;	1399	coroapi.ver = CORO_API_VERSION;
1182	coroapi.transfer = api_transfer;	1400	coroapi.transfer = api_transfer;
1183		1401
1184	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1402	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1191	struct coro *coro;	1409	struct coro *coro;
1192	HV *hv;	1410	HV *hv;
1193	int i;	1411	int i;
1194		1412
1195	Newz (0, coro, 1, struct coro);	1413	Newz (0, coro, 1, struct coro);
1196	coro->args = newAV ();	1414	coro->args = newAV ();
1197	coro->save = CORO_SAVE_DEF;
1198	coro->flags = CF_NEW;	1415	coro->flags = CF_NEW;
1199		1416
		1417	if (coro_first) coro_first->prev = coro;
		1418	coro->next = coro_first;
		1419	coro_first = coro;
		1420
1200	hv = newHV ();	1421	coro->hv = hv = newHV ();
1201	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1422	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1202	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1423	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1203		1424
1204	for (i = 1; i < items; i++)	1425	for (i = 1; i < items; i++)
1205	av_push (coro->args, newSVsv (ST (i)));	1426	av_push (coro->args, newSVsv (ST (i)));
1206	}	1427	}
1207	OUTPUT:	1428	OUTPUT:
1208	RETVAL	1429	RETVAL
1209		1430
1210	int	1431	# these not obviously related functions are all rolled into the same xs
1211	save (SV *coro, int new_save = -1)	1432	# function to increase chances that they all will call transfer with the same
1212	CODE:	1433	# stack offset
1213	RETVAL = api_save (coro, new_save);
1214	OUTPUT:
1215	RETVAL
1216
1217	int
1218	save_also (SV *coro_sv, int save_also)
1219	CODE:
1220	{
1221	struct coro *coro = SvSTATE (coro_sv);
1222	RETVAL = coro->save;
1223	coro->save \|= save_also;
1224	}
1225	OUTPUT:
1226	RETVAL
1227
1228	void	1434	void
1229	_set_stacklevel (...)	1435	_set_stacklevel (...)
1230	ALIAS:	1436	ALIAS:
1231	Coro::State::transfer = 1	1437	Coro::State::transfer = 1
1232	Coro::schedule = 2	1438	Coro::schedule = 2
…		…
1307	CODE:	1513	CODE:
1308	RETVAL = cctx_idle;	1514	RETVAL = cctx_idle;
1309	OUTPUT:	1515	OUTPUT:
1310	RETVAL	1516	RETVAL
1311		1517
		1518	void
		1519	list ()
		1520	PPCODE:
		1521	{
		1522	struct coro *coro;
		1523	for (coro = coro_first; coro; coro = coro->next)
		1524	if (coro->hv)
		1525	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1526	}
		1527
		1528	void
		1529	call (Coro::State coro, SV *coderef)
		1530	ALIAS:
		1531	eval = 1
		1532	CODE:
		1533	{
		1534	if (coro->mainstack)
		1535	{
		1536	struct coro temp;
		1537	Zero (&temp, 1, struct coro);
		1538
		1539	if (!(coro->flags & CF_RUNNING))
		1540	{
		1541	save_perl (aTHX_ &temp);
		1542	load_perl (aTHX_ coro);
		1543	}
		1544
		1545	{
		1546	dSP;
		1547	ENTER;
		1548	SAVETMPS;
		1549	PUSHMARK (SP);
		1550	PUTBACK;
		1551	if (ix)
		1552	eval_sv (coderef, 0);
		1553	else
		1554	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1555	SPAGAIN;
		1556	FREETMPS;
		1557	LEAVE;
		1558	PUTBACK;
		1559	}
		1560
		1561	if (!(coro->flags & CF_RUNNING))
		1562	{
		1563	save_perl (aTHX_ coro);
		1564	load_perl (aTHX_ &temp);
		1565	}
		1566	}
		1567	}
		1568
		1569	SV *
		1570	is_ready (Coro::State coro)
		1571	PROTOTYPE: $
		1572	ALIAS:
		1573	is_ready = CF_READY
		1574	is_running = CF_RUNNING
		1575	is_new = CF_NEW
		1576	is_destroyed = CF_DESTROYED
		1577	CODE:
		1578	RETVAL = boolSV (coro->flags & ix);
		1579	OUTPUT:
		1580	RETVAL
		1581
		1582	void
		1583	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1584
		1585	SV *
		1586	has_stack (Coro::State coro)
		1587	PROTOTYPE: $
		1588	CODE:
		1589	RETVAL = boolSV (!!coro->cctx);
		1590	OUTPUT:
		1591	RETVAL
		1592
		1593	int
		1594	is_traced (Coro::State coro)
		1595	PROTOTYPE: $
		1596	CODE:
		1597	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1598	OUTPUT:
		1599	RETVAL
		1600
		1601	IV
		1602	rss (Coro::State coro)
		1603	PROTOTYPE: $
		1604	ALIAS:
		1605	usecount = 1
		1606	CODE:
		1607	switch (ix)
		1608	{
		1609	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1610	case 1: RETVAL = coro->usecount; break;
		1611	}
		1612	OUTPUT:
		1613	RETVAL
		1614
		1615
1312	MODULE = Coro::State PACKAGE = Coro	1616	MODULE = Coro::State PACKAGE = Coro
1313		1617
1314	BOOT:	1618	BOOT:
1315	{	1619	{
1316	int i;	1620	int i;
		1621
		1622	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1623	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1624	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1625
		1626	coro_current = get_sv ("Coro::current", FALSE);
		1627	SvREADONLY_on (coro_current);
1317		1628
1318	coro_stash = gv_stashpv ("Coro", TRUE);	1629	coro_stash = gv_stashpv ("Coro", TRUE);
1319		1630
1320	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1631	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1321	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1632	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1322	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1633	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1323	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1634	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1324	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1635	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1325	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1636	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1326		1637
1327	coro_current = get_sv ("Coro::current", FALSE);
1328	SvREADONLY_on (coro_current);
1329
1330	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1638	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1331	coro_ready[i] = newAV ();	1639	coro_ready[i] = newAV ();
1332		1640
1333	{	1641	{
1334	SV *sv = perl_get_sv("Coro::API", 1);	1642	SV *sv = perl_get_sv("Coro::API", 1);
1335		1643
1336	coroapi.schedule = api_schedule;	1644	coroapi.schedule = api_schedule;
1337	coroapi.save = api_save;
1338	coroapi.cede = api_cede;	1645	coroapi.cede = api_cede;
1339	coroapi.cede_notself = api_cede_notself;	1646	coroapi.cede_notself = api_cede_notself;
1340	coroapi.ready = api_ready;	1647	coroapi.ready = api_ready;
1341	coroapi.is_ready = api_is_ready;	1648	coroapi.is_ready = api_is_ready;
1342	coroapi.nready = &coro_nready;	1649	coroapi.nready = &coro_nready;
…		…
1383	CODE:	1690	CODE:
1384	RETVAL = boolSV (api_ready (self));	1691	RETVAL = boolSV (api_ready (self));
1385	OUTPUT:	1692	OUTPUT:
1386	RETVAL	1693	RETVAL
1387		1694
1388	SV *
1389	is_ready (SV *self)
1390	PROTOTYPE: $
1391	CODE:
1392	RETVAL = boolSV (api_is_ready (self));
1393	OUTPUT:
1394	RETVAL
1395
1396	int	1695	int
1397	nready (...)	1696	nready (...)
1398	PROTOTYPE:	1697	PROTOTYPE:
1399	CODE:	1698	CODE:
1400	RETVAL = coro_nready;	1699	RETVAL = coro_nready;
1401	OUTPUT:	1700	OUTPUT:
1402	RETVAL	1701	RETVAL
1403		1702
		1703	# for async_pool speedup
		1704	void
		1705	_pool_1 (SV *cb)
		1706	CODE:
		1707	{
		1708	struct coro *coro = SvSTATE (coro_current);
		1709	HV hv = (HV )SvRV (coro_current);
		1710	AV *defav = GvAV (PL_defgv);
		1711	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1712	AV *invoke_av;
		1713	int i, len;
		1714
		1715	if (!invoke)
		1716	croak ("\3terminate\2\n");
		1717
		1718	SvREFCNT_dec (coro->saved_deffh);
		1719	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1720
		1721	hv_store (hv, "desc", sizeof ("desc") - 1,
		1722	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1723
		1724	invoke_av = (AV *)SvRV (invoke);
		1725	len = av_len (invoke_av);
		1726
		1727	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1728
		1729	if (len > 0)
		1730	{
		1731	av_fill (defav, len - 1);
		1732	for (i = 0; i < len; ++i)
		1733	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1734	}
		1735
		1736	SvREFCNT_dec (invoke);
		1737	}
		1738
		1739	void
		1740	_pool_2 (SV *cb)
		1741	CODE:
		1742	{
		1743	struct coro *coro = SvSTATE (coro_current);
		1744
		1745	sv_setsv (cb, &PL_sv_undef);
		1746
		1747	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1748	coro->saved_deffh = 0;
		1749
		1750	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1751	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1752	croak ("\3terminate\2\n");
		1753
		1754	av_clear (GvAV (PL_defgv));
		1755	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1756	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1757
		1758	coro->prio = 0;
		1759
		1760	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1761	api_trace (coro_current, 0);
		1762
		1763	av_push (av_async_pool, newSVsv (coro_current));
		1764	}
		1765
		1766
1404	MODULE = Coro::State PACKAGE = Coro::AIO	1767	MODULE = Coro::State PACKAGE = Coro::AIO
1405		1768
1406	SV *	1769	SV *
1407	_get_state ()	1770	_get_state ()
1408	CODE:	1771	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.147 by root, Mon Mar 19 15:50:48 2007 UTC vs. Revision 1.188 by root, Fri Oct 5 20:36:31 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.147 by root, Mon Mar 19 15:50:48 2007 UTC vs.
Revision 1.188 by root, Fri Oct 5 20:36:31 2007 UTC