[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 1.186 by root, Fri Oct 5 20:10:42 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
		139	/* async_pool helper stuff */
		140	static SV *sv_pool_rss;
		141	static SV *sv_pool_size;
		142	static AV *av_async_pool;
		143
137	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
138	static int cctx_count, cctx_idle;	145	static int cctx_count, cctx_idle;
		146
		147	enum {
		148	CC_MAPPED = 0x01,
		149	CC_NOREUSE = 0x02, /* throw this away after tracing */
		150	CC_TRACE = 0x04,
		151	CC_TRACE_SUB = 0x08, /* trace sub calls */
		152	CC_TRACE_LINE = 0x10, /* trace each statement */
		153	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		154	};
139		155
140	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	157	typedef struct coro_cctx {
142	struct coro_cctx *next;	158	struct coro_cctx *next;
143		159
…		…
152	coro_context cctx;	168	coro_context cctx;
153		169
154	#if CORO_USE_VALGRIND	170	#if CORO_USE_VALGRIND
155	int valgrind_id;	171	int valgrind_id;
156	#endif	172	#endif
157	char inuse, mapped;	173	unsigned char flags;
158	} coro_cctx;	174	} coro_cctx;
159		175
160	enum {	176	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
…		…
170	coro_cctx *cctx;	186	coro_cctx *cctx;
171		187
172	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
173	AV *args;	189	AV *args;
174	int refcnt;	190	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
177		192
178	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
179	AV defav; / @_ */	194	AV defav; / @_ */
180	SV defsv; / $_ */	195	SV defsv; / $_ */
181	SV errsv; / $@ */	196	SV errsv; / $@ */
182	GV deffh; / default filehandle */	197	SV deffh; / default filehandle */
183	SV irssv; / $/ */	198	SV irssv; / $/ */
184	SV irssv_sv; / real $/ cache */	199	SV irssv_sv; / real $/ cache */
185		200
186	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
187	# include "state.h"	202	# include "state.h"
188	#undef VAR	203	#undef VAR
189		204
		205	/* statistics */
		206	int usecount; /* number of transfers to this coro */
		207
190	/* coro process data */	208	/* coro process data */
191	int prio;	209	int prio;
		210	//SV *throw;
		211
		212	/* async_pool */
		213	SV *saved_deffh;
		214
		215	/* linked list */
		216	struct coro next, prev;
		217	HV hv; / the perl hash associated with this coro, if any */
192	};	218	};
193		219
194	typedef struct coro *Coro__State;	220	typedef struct coro *Coro__State;
195	typedef struct coro *Coro__State_or_hashref;	221	typedef struct coro *Coro__State_or_hashref;
196		222
…		…
205		231
206	/* for Coro.pm */	232	/* for Coro.pm */
207	static SV *coro_current;	233	static SV *coro_current;
208	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
209	static int coro_nready;	235	static int coro_nready;
		236	static struct coro *coro_first;
210		237
211	/ lowlevel stuff ********************************************************/	238	/ lowlevel stuff ********************************************************/
212		239
213	static AV *	240	static AV *
214	coro_clone_padlist (pTHX_ CV *cv)	241	coro_clone_padlist (pTHX_ CV *cv)
…		…
279	SvMAGIC (cv) \	306	SvMAGIC (cv) \
280	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
281	? SvMAGIC (cv) \	308	? SvMAGIC (cv) \
282	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
283	: 0	310	: 0
		311
		312	static struct coro *
		313	SvSTATE_ (pTHX_ SV *coro)
		314	{
		315	HV *stash;
		316	MAGIC *mg;
		317
		318	if (SvROK (coro))
		319	coro = SvRV (coro);
		320
		321	if (SvTYPE (coro) != SVt_PVHV)
		322	croak ("Coro::State object required");
		323
		324	stash = SvSTASH (coro);
		325	if (stash != coro_stash && stash != coro_state_stash)
		326	{
		327	/* very slow, but rare, check */
		328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		329	croak ("Coro::State object required");
		330	}
		331
		332	mg = CORO_MAGIC (coro);
		333	return (struct coro *)mg->mg_ptr;
		334	}
		335
		336	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
284		337
285	/* the next two functions merely cache the padlists */	338	/* the next two functions merely cache the padlists */
286	static void	339	static void
287	get_padlist (pTHX_ CV *cv)	340	get_padlist (pTHX_ CV *cv)
288	{	341	{
…		…
327	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
328	}	381	}
329		382
330	/ load & save, init *****************************************************/	383	/ load & save, init *****************************************************/
331		384
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	385	static void
338	load_perl (pTHX_ Coro__State c)	386	load_perl (pTHX_ Coro__State c)
339	{	387	{
340	#define VAR(name,type) PL_ ## name = c->name;	388	#define VAR(name,type) PL_ ## name = c->name;
341	# include "state.h"	389	# include "state.h"
342	#undef VAR	390	#undef VAR
343		391
344	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	392	GvSV (PL_defgv) = c->defsv;
345	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	GvAV (PL_defgv) = c->defav;
346	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	GvSV (PL_errgv) = c->errsv;
347	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	395	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		396
364	{	397	{
365	dSP;	398	dSP;
366	CV *cv;	399	CV *cv;
367		400
…		…
373	CvPADLIST (cv) = (AV *)POPs;	406	CvPADLIST (cv) = (AV *)POPs;
374	}	407	}
375		408
376	PUTBACK;	409	PUTBACK;
377	}	410	}
378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
379	}	411	}
380		412
381	static void	413	static void
382	save_perl (pTHX_ Coro__State c)	414	save_perl (pTHX_ Coro__State c)
383	{	415	{
384	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
385	{	416	{
386	dSP;	417	dSP;
387	I32 cxix = cxstack_ix;	418	I32 cxix = cxstack_ix;
388	PERL_CONTEXT *ccstk = cxstack;	419	PERL_CONTEXT *ccstk = cxstack;
389	PERL_SI *top_si = PL_curstackinfo;	420	PERL_SI *top_si = PL_curstackinfo;
…		…
391	/*	422	/*
392	* the worst thing you can imagine happens first - we have to save	423	* the worst thing you can imagine happens first - we have to save
393	* (and reinitialize) all cv's in the whole callchain :(	424	* (and reinitialize) all cv's in the whole callchain :(
394	*/	425	*/
395		426
396	EXTEND (SP, 3 + 1);
397	PUSHs (Nullsv);	427	XPUSHs (Nullsv);
398	/* this loop was inspired by pp_caller */	428	/* this loop was inspired by pp_caller */
399	for (;;)	429	for (;;)
400	{	430	{
401	while (cxix >= 0)	431	while (cxix >= 0)
402	{	432	{
403	PERL_CONTEXT *cx = &ccstk[cxix--];	433	PERL_CONTEXT *cx = &ccstk[cxix--];
404		434
405	if (CxTYPE (cx) == CXt_SUB)	435	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
406	{	436	{
407	CV *cv = cx->blk_sub.cv;	437	CV *cv = cx->blk_sub.cv;
408		438
409	if (CvDEPTH (cv))	439	if (CvDEPTH (cv))
410	{	440	{
…		…
421		451
422	if (top_si->si_type == PERLSI_MAIN)	452	if (top_si->si_type == PERLSI_MAIN)
423	break;	453	break;
424		454
425	top_si = top_si->si_prev;	455	top_si = top_si->si_prev;
426	ccstk = top_si->si_cxstack;	456	ccstk = top_si->si_cxstack;
427	cxix = top_si->si_cxix;	457	cxix = top_si->si_cxix;
428	}	458	}
429		459
430	PUTBACK;	460	PUTBACK;
431	}	461	}
432		462
433	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	463	c->defav = GvAV (PL_defgv);
434	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	464	c->defsv = DEFSV;
435	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	465	c->errsv = ERRSV;
436	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	466	c->irssv_sv = GvSV (irsgv);
437	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
438		467
439	#define VAR(name,type)c->name = PL_ ## name;	468	#define VAR(name,type)c->name = PL_ ## name;
440	# include "state.h"	469	# include "state.h"
441	#undef VAR	470	#undef VAR
442	}	471	}
…		…
451	# define coro_init_stacks init_stacks	480	# define coro_init_stacks init_stacks
452	#else	481	#else
453	static void	482	static void
454	coro_init_stacks (pTHX)	483	coro_init_stacks (pTHX)
455	{	484	{
456	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	485	PL_curstackinfo = new_stackinfo(64, 6);
457	PL_curstackinfo->si_type = PERLSI_MAIN;	486	PL_curstackinfo->si_type = PERLSI_MAIN;
458	PL_curstack = PL_curstackinfo->si_stack;	487	PL_curstack = PL_curstackinfo->si_stack;
459	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460		489
461	PL_stack_base = AvARRAY(PL_curstack);	490	PL_stack_base = AvARRAY(PL_curstack);
462	PL_stack_sp = PL_stack_base;	491	PL_stack_sp = PL_stack_base;
463	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
464		493
465	New(50,PL_tmps_stack,128,SV*);	494	New(50,PL_tmps_stack,64,SV*);
466	PL_tmps_floor = -1;	495	PL_tmps_floor = -1;
467	PL_tmps_ix = -1;	496	PL_tmps_ix = -1;
468	PL_tmps_max = 128;	497	PL_tmps_max = 64;
469		498
470	New(54,PL_markstack,32,I32);	499	New(54,PL_markstack,16,I32);
471	PL_markstack_ptr = PL_markstack;	500	PL_markstack_ptr = PL_markstack;
472	PL_markstack_max = PL_markstack + 32;	501	PL_markstack_max = PL_markstack + 16;
473		502
474	#ifdef SET_MARK_OFFSET	503	#ifdef SET_MARK_OFFSET
475	SET_MARK_OFFSET;	504	SET_MARK_OFFSET;
476	#endif	505	#endif
477		506
478	New(54,PL_scopestack,32,I32);	507	New(54,PL_scopestack,16,I32);
479	PL_scopestack_ix = 0;	508	PL_scopestack_ix = 0;
480	PL_scopestack_max = 32;	509	PL_scopestack_max = 16;
481		510
482	New(54,PL_savestack,64,ANY);	511	New(54,PL_savestack,64,ANY);
483	PL_savestack_ix = 0;	512	PL_savestack_ix = 0;
484	PL_savestack_max = 64;	513	PL_savestack_max = 64;
485		514
486	#if !PERL_VERSION_ATLEAST (5,9,0)	515	#if !PERL_VERSION_ATLEAST (5,9,0)
487	New(54,PL_retstack,16,OP*);	516	New(54,PL_retstack,4,OP*);
488	PL_retstack_ix = 0;	517	PL_retstack_ix = 0;
489	PL_retstack_max = 16;	518	PL_retstack_max = 4;
490	#endif	519	#endif
491	}	520	}
492	#endif	521	#endif
493		522
494	/*	523	/*
495	* destroy the stacks, the callchain etc...	524	* destroy the stacks, the callchain etc...
496	*/	525	*/
497	static void	526	static void
498	coro_destroy_stacks (pTHX)	527	coro_destroy_stacks (pTHX)
499	{	528	{
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)	529	while (PL_curstackinfo->si_next)
518	PL_curstackinfo = PL_curstackinfo->si_next;	530	PL_curstackinfo = PL_curstackinfo->si_next;
519		531
520	while (PL_curstackinfo)	532	while (PL_curstackinfo)
521	{	533	{
…		…
536	#if !PERL_VERSION_ATLEAST (5,9,0)	548	#if !PERL_VERSION_ATLEAST (5,9,0)
537	Safefree (PL_retstack);	549	Safefree (PL_retstack);
538	#endif	550	#endif
539	}	551	}
540		552
		553	static size_t
		554	coro_rss (pTHX_ struct coro *coro)
		555	{
		556	size_t rss = sizeof (*coro);
		557
		558	if (coro->mainstack)
		559	{
		560	if (coro->flags & CF_RUNNING)
		561	{
		562	#define VAR(name,type)coro->name = PL_ ## name;
		563	# include "state.h"
		564	#undef VAR
		565	}
		566
		567	rss += sizeof (coro->curstackinfo);
		568	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		569	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		570	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		571	rss += coro->tmps_max * sizeof (SV *);
		572	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		573	rss += coro->scopestack_max * sizeof (I32);
		574	rss += coro->savestack_max * sizeof (ANY);
		575
		576	#if !PERL_VERSION_ATLEAST (5,9,0)
		577	rss += coro->retstack_max * sizeof (OP *);
		578	#endif
		579	}
		580
		581	return rss;
		582	}
		583
541	/ coroutine stack handling **********************************************/	584	/ coroutine stack handling **********************************************/
542		585
543	static void	586	static void
544	setup_coro (pTHX_ struct coro *coro)	587	coro_setup (pTHX_ struct coro *coro)
545	{	588	{
546	/*	589	/*
547	* emulate part of the perl startup here.	590	* emulate part of the perl startup here.
548	*/	591	*/
549	coro_init_stacks (aTHX);	592	coro_init_stacks (aTHX);
550		593
		594	PL_runops = RUNOPS_DEFAULT;
551	PL_curcop = &PL_compiling;	595	PL_curcop = &PL_compiling;
552	PL_in_eval = EVAL_NULL;	596	PL_in_eval = EVAL_NULL;
553	PL_comppad = 0;	597	PL_comppad = 0;
554	PL_curpm = 0;	598	PL_curpm = 0;
555	PL_localizing = 0;	599	PL_localizing = 0;
556	PL_dirty = 0;	600	PL_dirty = 0;
557	PL_restartop = 0;	601	PL_restartop = 0;
		602
		603	GvSV (PL_defgv) = NEWSV (0, 0);
		604	GvAV (PL_defgv) = coro->args; coro->args = 0;
		605	GvSV (PL_errgv) = NEWSV (0, 0);
		606	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		607	PL_rs = newSVsv (GvSV (irsgv));
		608
		609	{
		610	IO *io = newIO ();
		611	PL_defoutgv = (GV *)NEWSV (0, 0);
		612	gv_init (PL_defoutgv, coro_state_stash, "stdout", sizeof ("stdout") - 1, 0);
		613	IoTYPE (io) = IoTYPE_WRONLY;
		614	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		615	IoFLAGS (io) \|= IOf_FLUSH;
		616	GvIOp (PL_defoutgv) = io;
		617	}
558		618
559	{	619	{
560	dSP;	620	dSP;
561	LOGOP myop;	621	LOGOP myop;
562		622
563	SvREFCNT_dec (GvAV (PL_defgv));
564	GvAV (PL_defgv) = coro->args; coro->args = 0;
565
566	Zero (&myop, 1, LOGOP);	623	Zero (&myop, 1, LOGOP);
567	myop.op_next = Nullop;	624	myop.op_next = Nullop;
568	myop.op_flags = OPf_WANT_VOID;	625	myop.op_flags = OPf_WANT_VOID;
569		626
570	PUSHMARK (SP);	627	PUSHMARK (SP);
571	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	628	XPUSHs (av_shift (GvAV (PL_defgv)));
572	PUTBACK;	629	PUTBACK;
573	PL_op = (OP *)&myop;	630	PL_op = (OP *)&myop;
574	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	631	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
575	SPAGAIN;	632	SPAGAIN;
576	}	633	}
577		634
578	ENTER; /* necessary e.g. for dounwind */	635	ENTER; /* necessary e.g. for dounwind */
579	}	636	}
580		637
581	static void	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);
		669	}
		670
		671	static void
582	free_coro_mortal (pTHX)	672	free_coro_mortal (pTHX)
583	{	673	{
584	if (coro_mortal)	674	if (coro_mortal)
585	{	675	{
586	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
587	coro_mortal = 0;	677	coro_mortal = 0;
588	}	678	}
589	}	679	}
590		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
591	/* 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 */
592	static void NOINLINE	807	static void NOINLINE
593	prepare_cctx (pTHX_ coro_cctx *cctx)	808	prepare_cctx (pTHX_ coro_cctx *cctx)
594	{	809	{
595	dSP;	810	dSP;
596	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;
597		817
598	Zero (&myop, 1, LOGOP);	818	Zero (&myop, 1, LOGOP);
599	myop.op_next = PL_op;	819	myop.op_next = PL_op;
600	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	820	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
601		821
…		…
607	PL_op = (OP *)&myop;	827	PL_op = (OP *)&myop;
608	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	828	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
609	SPAGAIN;	829	SPAGAIN;
610	}	830	}
611		831
		832	/*
		833	* this is a _very_ stripped down perl interpreter ;)
		834	*/
612	static void	835	static void
613	coro_run (void *arg)	836	coro_run (void *arg)
614	{	837	{
615	dTHX;	838	dTHX;
616		839
617	/* coro_run is the alternative tail of transfer(), so unlock here. */	840	/* coro_run is the alternative tail of transfer(), so unlock here. */
618	UNLOCK;	841	UNLOCK;
619		842
620	/*	843	/* we now skip the entersub that lead to transfer() */
621	* this is a _very_ stripped down perl interpreter ;)	844	PL_op = PL_op->op_next;
622	*/
623	PL_top_env = &PL_start_env;
624		845
625	/* inject call to cctx_init */	846	/* inject a fake subroutine call to cctx_init */
626	prepare_cctx (aTHX_ (coro_cctx *)arg);	847	prepare_cctx (aTHX_ (coro_cctx *)arg);
627		848
628	/* 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 */
629	PL_restartop = PL_op;	850	PL_restartop = PL_op;
630	perl_run (PL_curinterp);	851	perl_run (PL_curinterp);
631		852
632	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	853	/*
633	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 */
634	}	862	}
635		863
636	static coro_cctx *	864	static coro_cctx *
637	cctx_new ()	865	cctx_new ()
638	{	866	{
…		…
655	# if CORO_STACKGUARD	883	# if CORO_STACKGUARD
656	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	884	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
657	# endif	885	# endif
658	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	886	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
659	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	887	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
660	cctx->mapped = 1;	888	cctx->flags \|= CC_MAPPED;
661	}	889	}
662	else	890	else
663	#endif	891	#endif
664	{	892	{
665	cctx->ssize = coro_stacksize * (long)sizeof (long);	893	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
692	#if CORO_USE_VALGRIND	920	#if CORO_USE_VALGRIND
693	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	921	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694	#endif	922	#endif
695		923
696	#if HAVE_MMAP	924	#if HAVE_MMAP
697	if (cctx->mapped)	925	if (cctx->flags & CC_MAPPED)
698	munmap (cctx->sptr, cctx->ssize);	926	munmap (cctx->sptr, cctx->ssize);
699	else	927	else
700	#endif	928	#endif
701	Safefree (cctx->sptr);	929	Safefree (cctx->sptr);
702		930
…		…
710	{	938	{
711	coro_cctx *cctx = cctx_first;	939	coro_cctx *cctx = cctx_first;
712	cctx_first = cctx->next;	940	cctx_first = cctx->next;
713	--cctx_idle;	941	--cctx_idle;
714		942
715	if (cctx->ssize >= coro_stacksize)	943	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
716	return cctx;	944	return cctx;
717		945
718	cctx_destroy (cctx);	946	cctx_destroy (cctx);
719	}	947	}
720		948
721	PL_op = PL_op->op_next;
722	return cctx_new ();	949	return cctx_new ();
723	}	950	}
724		951
725	static void	952	static void
726	cctx_put (coro_cctx *cctx)	953	cctx_put (coro_cctx *cctx)
…		…
730	{	957	{
731	coro_cctx *first = cctx_first;	958	coro_cctx *first = cctx_first;
732	cctx_first = first->next;	959	cctx_first = first->next;
733	--cctx_idle;	960	--cctx_idle;
734		961
735	assert (!first->inuse);
736	cctx_destroy (first);	962	cctx_destroy (first);
737	}	963	}
738		964
739	++cctx_idle;	965	++cctx_idle;
740	cctx->next = cctx_first;	966	cctx->next = cctx_first;
741	cctx_first = cctx;	967	cctx_first = cctx;
742	}	968	}
743		969
744	/ coroutine switching ***************************************************/	970	/ coroutine switching ***************************************************/
745		971
746	/* 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 */
747	static void NOINLINE	992	static void NOINLINE
748	transfer (pTHX_ struct coro prev, struct coro next)	993	transfer (pTHX_ struct coro prev, struct coro next)
749	{	994	{
750	dSTACKLEVEL;	995	dSTACKLEVEL;
751		996
…		…
761		1006
762	if (prev->flags & CF_NEW)	1007	if (prev->flags & CF_NEW)
763	{	1008	{
764	/* create a new empty context */	1009	/* create a new empty context */
765	Newz (0, prev->cctx, 1, coro_cctx);	1010	Newz (0, prev->cctx, 1, coro_cctx);
766	prev->cctx->inuse = 1;
767	prev->flags &= ~CF_NEW;	1011	prev->flags &= ~CF_NEW;
768	prev->flags \|= CF_RUNNING;	1012	prev->flags \|= CF_RUNNING;
769	}	1013	}
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		1014
781	prev->flags &= ~CF_RUNNING;	1015	prev->flags &= ~CF_RUNNING;
782	next->flags \|= CF_RUNNING;	1016	next->flags \|= CF_RUNNING;
783		1017
784	LOCK;	1018	LOCK;
…		…
788	/* need to start coroutine */	1022	/* need to start coroutine */
789	next->flags &= ~CF_NEW;	1023	next->flags &= ~CF_NEW;
790	/* first get rid of the old state */	1024	/* first get rid of the old state */
791	save_perl (aTHX_ prev);	1025	save_perl (aTHX_ prev);
792	/* setup coroutine call */	1026	/* setup coroutine call */
793	setup_coro (aTHX_ next);	1027	coro_setup (aTHX_ next);
794	/* need a new stack */
795	assert (!next->cctx);
796	}	1028	}
797	else	1029	else
798	{	1030	{
799	/* coroutine already started */	1031	/* coroutine already started */
800	save_perl (aTHX_ prev);	1032	save_perl (aTHX_ prev);
…		…
802	}	1034	}
803		1035
804	prev__cctx = prev->cctx;	1036	prev__cctx = prev->cctx;
805		1037
806	/* possibly "free" the cctx */	1038	/* possibly "free" the cctx */
807	if (prev__cctx->idle_sp == STACKLEVEL)	1039	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
808	{	1040	{
809	/* 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 */
810	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));
811		1043
812	prev->cctx = 0;	1044	prev->cctx = 0;
813		1045
814	cctx_put (prev__cctx);	1046	cctx_put (prev__cctx);
815	prev__cctx->inuse = 0;
816	}	1047	}
817		1048
		1049	++next->usecount;
		1050
818	if (!next->cctx)	1051	if (!next->cctx)
819	{
820	next->cctx = cctx_get (aTHX);	1052	next->cctx = cctx_get (aTHX);
821	assert (!next->cctx->inuse);
822	next->cctx->inuse = 1;
823	}
824		1053
825	if (prev__cctx != next->cctx)	1054	if (prev__cctx != next->cctx)
826	{	1055	{
827	prev__cctx->top_env = PL_top_env;	1056	prev__cctx->top_env = PL_top_env;
828	PL_top_env = next->cctx->top_env;	1057	PL_top_env = next->cctx->top_env;
…		…
838	{	1067	{
839	struct coro prev, next;	1068	struct coro prev, next;
840	};	1069	};
841		1070
842	#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)
843		1073
844	/ high level stuff ******************************************************/	1074	/ high level stuff ******************************************************/
845		1075
846	static int	1076	static int
847	coro_state_destroy (pTHX_ struct coro *coro)	1077	coro_state_destroy (pTHX_ struct coro *coro)
…		…
864		1094
865	if (coro->mainstack && coro->mainstack != main_mainstack)	1095	if (coro->mainstack && coro->mainstack != main_mainstack)
866	{	1096	{
867	struct coro temp;	1097	struct coro temp;
868		1098
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)	1099	if (coro->flags & CF_RUNNING)
875	croak ("FATAL: tried to destroy currently running coroutine");	1100	croak ("FATAL: tried to destroy currently running coroutine");
876		1101
877	save_perl (aTHX_ &temp);	1102	save_perl (aTHX_ &temp);
878	load_perl (aTHX_ coro);	1103	load_perl (aTHX_ coro);
879		1104
880	coro_destroy_stacks (aTHX);	1105	coro_destroy (aTHX_ coro);
881		1106
882	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1107	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
883		1108
884	coro->mainstack = 0;	1109	coro->mainstack = 0;
885	}	1110	}
886		1111
887	cctx_destroy (coro->cctx);	1112	cctx_destroy (coro->cctx);
888	SvREFCNT_dec (coro->args);	1113	SvREFCNT_dec (coro->args);
889		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
890	return 1;	1119	return 1;
891	}	1120	}
892		1121
893	static int	1122	static int
894	coro_state_free (pTHX_ SV sv, MAGIC mg)	1123	coro_state_free (pTHX_ SV sv, MAGIC mg)
895	{	1124	{
896	struct coro coro = (struct coro )mg->mg_ptr;	1125	struct coro coro = (struct coro )mg->mg_ptr;
897	mg->mg_ptr = 0;	1126	mg->mg_ptr = 0;
		1127
		1128	coro->hv = 0;
898		1129
899	if (--coro->refcnt < 0)	1130	if (--coro->refcnt < 0)
900	{	1131	{
901	coro_state_destroy (aTHX_ coro);	1132	coro_state_destroy (aTHX_ coro);
902	Safefree (coro);	1133	Safefree (coro);
…		…
924	#else	1155	#else
925	# define MGf_DUP 0	1156	# define MGf_DUP 0
926	#endif	1157	#endif
927	};	1158	};
928		1159
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	1160	static void
953	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)
954	{	1162	{
955	ta->prev = SvSTATE (prev_sv);	1163	ta->prev = SvSTATE (prev_sv);
956	ta->next = SvSTATE (next_sv);	1164	ta->next = SvSTATE (next_sv);
		1165	TRANSFER_CHECK (*ta);
957	}	1166	}
958		1167
959	static void	1168	static void
960	api_transfer (SV prev_sv, SV next_sv)	1169	api_transfer (SV prev_sv, SV next_sv)
961	{	1170	{
962	dTHX;	1171	dTHX;
963	struct transfer_args ta;	1172	struct transfer_args ta;
964		1173
965	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1174	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
966	TRANSFER (ta);	1175	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	}	1176	}
981		1177
982	/ Coro ******************************************************************/	1178	/ Coro ******************************************************************/
983		1179
984	static void	1180	static void
…		…
1078	break;	1274	break;
1079	}	1275	}
1080		1276
1081	/* free this only after the transfer */	1277	/* free this only after the transfer */
1082	prev_sv = SvRV (coro_current);	1278	prev_sv = SvRV (coro_current);
1083	SvRV_set (coro_current, next_sv);
1084	ta->prev = SvSTATE (prev_sv);	1279	ta->prev = SvSTATE (prev_sv);
1085		1280	TRANSFER_CHECK (*ta);
1086	assert (ta->next->flags & CF_READY);	1281	assert (ta->next->flags & CF_READY);
1087	ta->next->flags &= ~CF_READY;	1282	ta->next->flags &= ~CF_READY;
		1283	SvRV_set (coro_current, next_sv);
1088		1284
1089	LOCK;	1285	LOCK;
1090	free_coro_mortal (aTHX);	1286	free_coro_mortal (aTHX);
1091	coro_mortal = prev_sv;	1287	coro_mortal = prev_sv;
1092	UNLOCK;	1288	UNLOCK;
…		…
1153	}	1349	}
1154	else	1350	else
1155	return 0;	1351	return 0;
1156	}	1352	}
1157		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
1158	MODULE = Coro::State PACKAGE = Coro::State	1380	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1159		1381
1160	PROTOTYPES: DISABLE	1382	PROTOTYPES: DISABLE
1161		1383
1162	BOOT:	1384	BOOT:
1163	{	1385	{
1164	#ifdef USE_ITHREADS	1386	#ifdef USE_ITHREADS
1165	MUTEX_INIT (&coro_mutex);	1387	MUTEX_INIT (&coro_mutex);
1166	#endif	1388	#endif
1167	BOOT_PAGESIZE;	1389	BOOT_PAGESIZE;
1168		1390
		1391	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1392
1169	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1393	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1170		1394
1171	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1395	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1172	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1396	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));	1397	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1177	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1398	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1178		1399
1179	main_mainstack = PL_mainstack;	1400	main_mainstack = PL_mainstack;
		1401	main_top_env = PL_top_env;
		1402
		1403	while (main_top_env->je_prev)
		1404	main_top_env = main_top_env->je_prev;
1180		1405
1181	coroapi.ver = CORO_API_VERSION;	1406	coroapi.ver = CORO_API_VERSION;
1182	coroapi.transfer = api_transfer;	1407	coroapi.transfer = api_transfer;
1183		1408
1184	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1409	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1191	struct coro *coro;	1416	struct coro *coro;
1192	HV *hv;	1417	HV *hv;
1193	int i;	1418	int i;
1194		1419
1195	Newz (0, coro, 1, struct coro);	1420	Newz (0, coro, 1, struct coro);
1196	coro->args = newAV ();	1421	coro->args = newAV ();
1197	coro->save = CORO_SAVE_DEF;
1198	coro->flags = CF_NEW;	1422	coro->flags = CF_NEW;
1199		1423
		1424	if (coro_first) coro_first->prev = coro;
		1425	coro->next = coro_first;
		1426	coro_first = coro;
		1427
1200	hv = newHV ();	1428	coro->hv = hv = newHV ();
1201	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1429	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));	1430	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1203		1431
1204	for (i = 1; i < items; i++)	1432	for (i = 1; i < items; i++)
1205	av_push (coro->args, newSVsv (ST (i)));	1433	av_push (coro->args, newSVsv (ST (i)));
1206	}	1434	}
1207	OUTPUT:	1435	OUTPUT:
1208	RETVAL	1436	RETVAL
1209		1437
1210	int	1438	# these not obviously related functions are all rolled into the same xs
1211	save (SV *coro, int new_save = -1)	1439	# function to increase chances that they all will call transfer with the same
1212	CODE:	1440	# 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	1441	void
1229	_set_stacklevel (...)	1442	_set_stacklevel (...)
1230	ALIAS:	1443	ALIAS:
1231	Coro::State::transfer = 1	1444	Coro::State::transfer = 1
1232	Coro::schedule = 2	1445	Coro::schedule = 2
…		…
1307	CODE:	1520	CODE:
1308	RETVAL = cctx_idle;	1521	RETVAL = cctx_idle;
1309	OUTPUT:	1522	OUTPUT:
1310	RETVAL	1523	RETVAL
1311		1524
		1525	void
		1526	list ()
		1527	PPCODE:
		1528	{
		1529	struct coro *coro;
		1530	for (coro = coro_first; coro; coro = coro->next)
		1531	if (coro->hv)
		1532	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1533	}
		1534
		1535	void
		1536	call (Coro::State coro, SV *coderef)
		1537	ALIAS:
		1538	eval = 1
		1539	CODE:
		1540	{
		1541	if (coro->mainstack)
		1542	{
		1543	struct coro temp;
		1544	Zero (&temp, 1, struct coro);
		1545
		1546	if (!(coro->flags & CF_RUNNING))
		1547	{
		1548	save_perl (aTHX_ &temp);
		1549	load_perl (aTHX_ coro);
		1550	}
		1551
		1552	{
		1553	dSP;
		1554	ENTER;
		1555	SAVETMPS;
		1556	PUSHMARK (SP);
		1557	PUTBACK;
		1558	if (ix)
		1559	eval_sv (coderef, 0);
		1560	else
		1561	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1562	SPAGAIN;
		1563	FREETMPS;
		1564	LEAVE;
		1565	PUTBACK;
		1566	}
		1567
		1568	if (!(coro->flags & CF_RUNNING))
		1569	{
		1570	save_perl (aTHX_ coro);
		1571	load_perl (aTHX_ &temp);
		1572	}
		1573	}
		1574	}
		1575
		1576	SV *
		1577	is_ready (Coro::State coro)
		1578	PROTOTYPE: $
		1579	ALIAS:
		1580	is_ready = CF_READY
		1581	is_running = CF_RUNNING
		1582	is_new = CF_NEW
		1583	is_destroyed = CF_DESTROYED
		1584	CODE:
		1585	RETVAL = boolSV (coro->flags & ix);
		1586	OUTPUT:
		1587	RETVAL
		1588
		1589	void
		1590	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1591
		1592	SV *
		1593	has_stack (Coro::State coro)
		1594	PROTOTYPE: $
		1595	CODE:
		1596	RETVAL = boolSV (!!coro->cctx);
		1597	OUTPUT:
		1598	RETVAL
		1599
		1600	int
		1601	is_traced (Coro::State coro)
		1602	PROTOTYPE: $
		1603	CODE:
		1604	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1605	OUTPUT:
		1606	RETVAL
		1607
		1608	IV
		1609	rss (Coro::State coro)
		1610	PROTOTYPE: $
		1611	ALIAS:
		1612	usecount = 1
		1613	CODE:
		1614	switch (ix)
		1615	{
		1616	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1617	case 1: RETVAL = coro->usecount; break;
		1618	}
		1619	OUTPUT:
		1620	RETVAL
		1621
		1622
1312	MODULE = Coro::State PACKAGE = Coro	1623	MODULE = Coro::State PACKAGE = Coro
1313		1624
1314	BOOT:	1625	BOOT:
1315	{	1626	{
1316	int i;	1627	int i;
		1628
		1629	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1630	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1631	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1632
		1633	coro_current = get_sv ("Coro::current", FALSE);
		1634	SvREADONLY_on (coro_current);
1317		1635
1318	coro_stash = gv_stashpv ("Coro", TRUE);	1636	coro_stash = gv_stashpv ("Coro", TRUE);
1319		1637
1320	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1638	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1321	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1639	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1322	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1640	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1323	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1641	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1324	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1642	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1325	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1643	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1326		1644
1327	coro_current = get_sv ("Coro::current", FALSE);
1328	SvREADONLY_on (coro_current);
1329
1330	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1645	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1331	coro_ready[i] = newAV ();	1646	coro_ready[i] = newAV ();
1332		1647
1333	{	1648	{
1334	SV *sv = perl_get_sv("Coro::API", 1);	1649	SV *sv = perl_get_sv("Coro::API", 1);
1335		1650
1336	coroapi.schedule = api_schedule;	1651	coroapi.schedule = api_schedule;
1337	coroapi.save = api_save;
1338	coroapi.cede = api_cede;	1652	coroapi.cede = api_cede;
1339	coroapi.cede_notself = api_cede_notself;	1653	coroapi.cede_notself = api_cede_notself;
1340	coroapi.ready = api_ready;	1654	coroapi.ready = api_ready;
1341	coroapi.is_ready = api_is_ready;	1655	coroapi.is_ready = api_is_ready;
1342	coroapi.nready = &coro_nready;	1656	coroapi.nready = &coro_nready;
…		…
1383	CODE:	1697	CODE:
1384	RETVAL = boolSV (api_ready (self));	1698	RETVAL = boolSV (api_ready (self));
1385	OUTPUT:	1699	OUTPUT:
1386	RETVAL	1700	RETVAL
1387		1701
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	1702	int
1397	nready (...)	1703	nready (...)
1398	PROTOTYPE:	1704	PROTOTYPE:
1399	CODE:	1705	CODE:
1400	RETVAL = coro_nready;	1706	RETVAL = coro_nready;
1401	OUTPUT:	1707	OUTPUT:
1402	RETVAL	1708	RETVAL
1403		1709
		1710	# for async_pool speedup
		1711	void
		1712	_pool_1 (SV *cb)
		1713	CODE:
		1714	{
		1715	struct coro *coro = SvSTATE (coro_current);
		1716	HV hv = (HV )SvRV (coro_current);
		1717	AV *defav = GvAV (PL_defgv);
		1718	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1719	AV *invoke_av;
		1720	int i, len;
		1721
		1722	if (!invoke)
		1723	croak ("\3terminate\2\n");
		1724
		1725	SvREFCNT_dec (coro->saved_deffh);
		1726	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1727
		1728	hv_store (hv, "desc", sizeof ("desc") - 1,
		1729	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1730
		1731	invoke_av = (AV *)SvRV (invoke);
		1732	len = av_len (invoke_av);
		1733
		1734	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1735
		1736	if (len > 0)
		1737	{
		1738	av_fill (defav, len - 1);
		1739	for (i = 0; i < len; ++i)
		1740	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1741	}
		1742
		1743	SvREFCNT_dec (invoke);
		1744	}
		1745
		1746	void
		1747	_pool_2 (SV *cb)
		1748	CODE:
		1749	{
		1750	struct coro *coro = SvSTATE (coro_current);
		1751
		1752	sv_setsv (cb, &PL_sv_undef);
		1753
		1754	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1755	coro->saved_deffh = 0;
		1756
		1757	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1758	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1759	croak ("\3terminate\2\n");
		1760
		1761	av_clear (GvAV (PL_defgv));
		1762	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1763	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1764
		1765	coro->prio = 0;
		1766
		1767	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1768	api_trace (coro_current, 0);
		1769
		1770	av_push (av_async_pool, newSVsv (coro_current));
		1771	}
		1772
		1773
1404	MODULE = Coro::State PACKAGE = Coro::AIO	1774	MODULE = Coro::State PACKAGE = Coro::AIO
1405		1775
1406	SV *	1776	SV *
1407	_get_state ()	1777	_get_state ()
1408	CODE:	1778	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 1.186 by root, Fri Oct 5 20:10:42 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 1.186 by root, Fri Oct 5 20:10:42 2007 UTC