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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.150 by root, Wed Jun 13 21:04:48 2007 UTC vs.
Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC

…		…
75	/* 5.8.7 */	75	/* 5.8.7 */
76	#ifndef SvRV_set	76	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	78	#endif
79		79
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84	#ifndef newSV
		85	# define newSV(l) NEWSV(0,l)
		86	#endif
		87
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	89	# undef CORO_STACKGUARD
82	#endif	90	#endif
83		91
84	#ifndef CORO_STACKGUARD	92	#ifndef CORO_STACKGUARD
…		…
88	/* prefer perl internal functions over our own? */	96	/* prefer perl internal functions over our own? */
89	#ifndef CORO_PREFER_PERL_FUNCTIONS	97	#ifndef CORO_PREFER_PERL_FUNCTIONS
90	# define CORO_PREFER_PERL_FUNCTIONS 0	98	# define CORO_PREFER_PERL_FUNCTIONS 0
91	#endif	99	#endif
92		100
93	/* The next macro should declare a variable stacklevel that contains and approximation	101	/* The next macros try to return the current stack pointer, in an as
94	* to the current C stack pointer. Its property is that it changes with each call	102	* portable way as possible. */
95	* and should be unique. */
96	#define dSTACKLEVEL int stacklevel	103	#define dSTACKLEVEL volatile char stacklevel
97	#define STACKLEVEL ((void *)&stacklevel)	104	#define STACKLEVEL ((void *)&stacklevel)
98		105
99	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
100		107
101	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
…		…
133	static AV main_mainstack; / used to differentiate between $main and others */	140	static AV main_mainstack; / used to differentiate between $main and others */
134	static JMPENV *main_top_env;	141	static JMPENV *main_top_env;
135	static HV coro_state_stash, coro_stash;	142	static HV coro_state_stash, coro_stash;
136	static SV coro_mortal; / will be freed after next transfer */	143	static SV coro_mortal; / will be freed after next transfer */
137		144
		145	static GV irsgv; / $/ */
		146	static GV stdoutgv; / STDOUT /
		147
		148	/* async_pool helper stuff */
		149	static SV *sv_pool_rss;
		150	static SV *sv_pool_size;
		151	static AV *av_async_pool;
		152
138	static struct coro_cctx *cctx_first;	153	static struct coro_cctx *cctx_first;
139	static int cctx_count, cctx_idle;	154	static int cctx_count, cctx_idle;
		155
		156	enum {
		157	CC_MAPPED = 0x01,
		158	CC_NOREUSE = 0x02, /* throw this away after tracing */
		159	CC_TRACE = 0x04,
		160	CC_TRACE_SUB = 0x08, /* trace sub calls */
		161	CC_TRACE_LINE = 0x10, /* trace each statement */
		162	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		163	};
140		164
141	/* this is a structure representing a c-level coroutine */	165	/* this is a structure representing a c-level coroutine */
142	typedef struct coro_cctx {	166	typedef struct coro_cctx {
143	struct coro_cctx *next;	167	struct coro_cctx *next;
144		168
…		…
153	coro_context cctx;	177	coro_context cctx;
154		178
155	#if CORO_USE_VALGRIND	179	#if CORO_USE_VALGRIND
156	int valgrind_id;	180	int valgrind_id;
157	#endif	181	#endif
158	char inuse, mapped;	182	unsigned char flags;
159	} coro_cctx;	183	} coro_cctx;
160		184
161	enum {	185	enum {
162	CF_RUNNING = 0x0001, /* coroutine is running */	186	CF_RUNNING = 0x0001, /* coroutine is running */
163	CF_READY = 0x0002, /* coroutine is ready */	187	CF_READY = 0x0002, /* coroutine is ready */
…		…
171	coro_cctx *cctx;	195	coro_cctx *cctx;
172		196
173	/* data associated with this coroutine (initial args) */	197	/* data associated with this coroutine (initial args) */
174	AV *args;	198	AV *args;
175	int refcnt;	199	int refcnt;
176	int save; /* CORO_SAVE flags */
177	int flags; /* CF_ flags */	200	int flags; /* CF_ flags */
178		201
179	/* optionally saved, might be zero */	202	/* optionally saved, might be zero */
180	AV defav; / @_ */	203	AV defav; / @_ */
181	SV defsv; / $_ */	204	SV defsv; / $_ */
182	SV errsv; / $@ */	205	SV errsv; / $@ */
183	GV deffh; / default filehandle */	206	SV deffh; / default filehandle */
184	SV irssv; / $/ */	207	SV irssv; / $/ */
185	SV irssv_sv; / real $/ cache */	208	SV irssv_sv; / real $/ cache */
186		209
187	#define VAR(name,type) type name;	210	#define VAR(name,type) type name;
188	# include "state.h"	211	# include "state.h"
189	#undef VAR	212	#undef VAR
190		213
		214	/* statistics */
		215	int usecount; /* number of transfers to this coro */
		216
191	/* coro process data */	217	/* coro process data */
192	int prio;	218	int prio;
		219	//SV *throw;
		220
		221	/* async_pool */
		222	SV *saved_deffh;
		223
		224	/* linked list */
		225	struct coro next, prev;
		226	HV hv; / the perl hash associated with this coro, if any */
193	};	227	};
194		228
195	typedef struct coro *Coro__State;	229	typedef struct coro *Coro__State;
196	typedef struct coro *Coro__State_or_hashref;	230	typedef struct coro *Coro__State_or_hashref;
197		231
…		…
206		240
207	/* for Coro.pm */	241	/* for Coro.pm */
208	static SV *coro_current;	242	static SV *coro_current;
209	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	243	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
210	static int coro_nready;	244	static int coro_nready;
		245	static struct coro *coro_first;
211		246
212	/ lowlevel stuff ********************************************************/	247	/ lowlevel stuff ********************************************************/
213		248
214	static AV *	249	static AV *
215	coro_clone_padlist (pTHX_ CV *cv)	250	coro_clone_padlist (pTHX_ CV *cv)
…		…
280	SvMAGIC (cv) \	315	SvMAGIC (cv) \
281	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	316	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
282	? SvMAGIC (cv) \	317	? SvMAGIC (cv) \
283	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	318	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
284	: 0	319	: 0
		320
		321	static struct coro *
		322	SvSTATE_ (pTHX_ SV *coro)
		323	{
		324	HV *stash;
		325	MAGIC *mg;
		326
		327	if (SvROK (coro))
		328	coro = SvRV (coro);
		329
		330	if (SvTYPE (coro) != SVt_PVHV)
		331	croak ("Coro::State object required");
		332
		333	stash = SvSTASH (coro);
		334	if (stash != coro_stash && stash != coro_state_stash)
		335	{
		336	/* very slow, but rare, check */
		337	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		338	croak ("Coro::State object required");
		339	}
		340
		341	mg = CORO_MAGIC (coro);
		342	return (struct coro *)mg->mg_ptr;
		343	}
		344
		345	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
285		346
286	/* the next two functions merely cache the padlists */	347	/* the next two functions merely cache the padlists */
287	static void	348	static void
288	get_padlist (pTHX_ CV *cv)	349	get_padlist (pTHX_ CV *cv)
289	{	350	{
…		…
328	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	389	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
329	}	390	}
330		391
331	/ load & save, init *****************************************************/	392	/ load & save, init *****************************************************/
332		393
333	#define SB do {
334	#define SE } while (0)
335
336	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
337
338	static void	394	static void
339	load_perl (pTHX_ Coro__State c)	395	load_perl (pTHX_ Coro__State c)
340	{	396	{
341	#define VAR(name,type) PL_ ## name = c->name;	397	#define VAR(name,type) PL_ ## name = c->name;
342	# include "state.h"	398	# include "state.h"
343	#undef VAR	399	#undef VAR
344		400
345	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	401	GvSV (PL_defgv) = c->defsv;
346	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	402	GvAV (PL_defgv) = c->defav;
347	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	403	GvSV (PL_errgv) = c->errsv;
348	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	404	GvSV (irsgv) = c->irssv_sv;
349
350	if (c->irssv)
351	{
352	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
353	{
354	SvREFCNT_dec (c->irssv);
355	c->irssv = 0;
356	}
357	else
358	{
359	REPLACE_SV (PL_rs, c->irssv);
360	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
361	sv_setsv (c->irssv_sv, PL_rs);
362	}
363	}
364		405
365	{	406	{
366	dSP;	407	dSP;
367	CV *cv;	408	CV *cv;
368		409
…		…
374	CvPADLIST (cv) = (AV *)POPs;	415	CvPADLIST (cv) = (AV *)POPs;
375	}	416	}
376		417
377	PUTBACK;	418	PUTBACK;
378	}	419	}
379	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
380	}	420	}
381		421
382	static void	422	static void
383	save_perl (pTHX_ Coro__State c)	423	save_perl (pTHX_ Coro__State c)
384	{	424	{
385	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
386	{	425	{
387	dSP;	426	dSP;
388	I32 cxix = cxstack_ix;	427	I32 cxix = cxstack_ix;
389	PERL_CONTEXT *ccstk = cxstack;	428	PERL_CONTEXT *ccstk = cxstack;
390	PERL_SI *top_si = PL_curstackinfo;	429	PERL_SI *top_si = PL_curstackinfo;
…		…
392	/*	431	/*
393	* the worst thing you can imagine happens first - we have to save	432	* the worst thing you can imagine happens first - we have to save
394	* (and reinitialize) all cv's in the whole callchain :(	433	* (and reinitialize) all cv's in the whole callchain :(
395	*/	434	*/
396		435
397	EXTEND (SP, 3 + 1);
398	PUSHs (Nullsv);	436	XPUSHs (Nullsv);
399	/* this loop was inspired by pp_caller */	437	/* this loop was inspired by pp_caller */
400	for (;;)	438	for (;;)
401	{	439	{
402	while (cxix >= 0)	440	while (cxix >= 0)
403	{	441	{
404	PERL_CONTEXT *cx = &ccstk[cxix--];	442	PERL_CONTEXT *cx = &ccstk[cxix--];
405		443
406	if (CxTYPE (cx) == CXt_SUB)	444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
407	{	445	{
408	CV *cv = cx->blk_sub.cv;	446	CV *cv = cx->blk_sub.cv;
409		447
410	if (CvDEPTH (cv))	448	if (CvDEPTH (cv))
411	{	449	{
…		…
422		460
423	if (top_si->si_type == PERLSI_MAIN)	461	if (top_si->si_type == PERLSI_MAIN)
424	break;	462	break;
425		463
426	top_si = top_si->si_prev;	464	top_si = top_si->si_prev;
427	ccstk = top_si->si_cxstack;	465	ccstk = top_si->si_cxstack;
428	cxix = top_si->si_cxix;	466	cxix = top_si->si_cxix;
429	}	467	}
430		468
431	PUTBACK;	469	PUTBACK;
432	}	470	}
433		471
434	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	472	c->defav = GvAV (PL_defgv);
435	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	473	c->defsv = DEFSV;
436	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	474	c->errsv = ERRSV;
437	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	475	c->irssv_sv = GvSV (irsgv);
438	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
439		476
440	#define VAR(name,type)c->name = PL_ ## name;	477	#define VAR(name,type)c->name = PL_ ## name;
441	# include "state.h"	478	# include "state.h"
442	#undef VAR	479	#undef VAR
443	}	480	}
…		…
452	# define coro_init_stacks init_stacks	489	# define coro_init_stacks init_stacks
453	#else	490	#else
454	static void	491	static void
455	coro_init_stacks (pTHX)	492	coro_init_stacks (pTHX)
456	{	493	{
457	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	494	PL_curstackinfo = new_stackinfo(64, 6);
458	PL_curstackinfo->si_type = PERLSI_MAIN;	495	PL_curstackinfo->si_type = PERLSI_MAIN;
459	PL_curstack = PL_curstackinfo->si_stack;	496	PL_curstack = PL_curstackinfo->si_stack;
460	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	497	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
461		498
462	PL_stack_base = AvARRAY(PL_curstack);	499	PL_stack_base = AvARRAY(PL_curstack);
463	PL_stack_sp = PL_stack_base;	500	PL_stack_sp = PL_stack_base;
464	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	501	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
465		502
466	New(50,PL_tmps_stack,128,SV*);	503	New(50,PL_tmps_stack,64,SV*);
467	PL_tmps_floor = -1;	504	PL_tmps_floor = -1;
468	PL_tmps_ix = -1;	505	PL_tmps_ix = -1;
469	PL_tmps_max = 128;	506	PL_tmps_max = 64;
470		507
471	New(54,PL_markstack,32,I32);	508	New(54,PL_markstack,16,I32);
472	PL_markstack_ptr = PL_markstack;	509	PL_markstack_ptr = PL_markstack;
473	PL_markstack_max = PL_markstack + 32;	510	PL_markstack_max = PL_markstack + 16;
474		511
475	#ifdef SET_MARK_OFFSET	512	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	513	SET_MARK_OFFSET;
477	#endif	514	#endif
478		515
479	New(54,PL_scopestack,32,I32);	516	New(54,PL_scopestack,16,I32);
480	PL_scopestack_ix = 0;	517	PL_scopestack_ix = 0;
481	PL_scopestack_max = 32;	518	PL_scopestack_max = 16;
482		519
483	New(54,PL_savestack,64,ANY);	520	New(54,PL_savestack,64,ANY);
484	PL_savestack_ix = 0;	521	PL_savestack_ix = 0;
485	PL_savestack_max = 64;	522	PL_savestack_max = 64;
486		523
487	#if !PERL_VERSION_ATLEAST (5,9,0)	524	#if !PERL_VERSION_ATLEAST (5,9,0)
488	New(54,PL_retstack,16,OP*);	525	New(54,PL_retstack,4,OP*);
489	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
490	PL_retstack_max = 16;	527	PL_retstack_max = 4;
491	#endif	528	#endif
492	}	529	}
493	#endif	530	#endif
494		531
495	/*	532	/*
496	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
497	*/	534	*/
498	static void	535	static void
499	coro_destroy_stacks (pTHX)	536	coro_destroy_stacks (pTHX)
500	{	537	{
501	if (!IN_DESTRUCT)
502	{
503	/* restore all saved variables and stuff */
504	LEAVE_SCOPE (0);
505	assert (PL_tmps_floor == -1);
506
507	/* free all temporaries */
508	FREETMPS;
509	assert (PL_tmps_ix == -1);
510
511	/* unwind all extra stacks */
512	POPSTACK_TO (PL_mainstack);
513
514	/* unwind main stack */
515	dounwind (-1);
516	}
517
518	while (PL_curstackinfo->si_next)	538	while (PL_curstackinfo->si_next)
519	PL_curstackinfo = PL_curstackinfo->si_next;	539	PL_curstackinfo = PL_curstackinfo->si_next;
520		540
521	while (PL_curstackinfo)	541	while (PL_curstackinfo)
522	{	542	{
…		…
537	#if !PERL_VERSION_ATLEAST (5,9,0)	557	#if !PERL_VERSION_ATLEAST (5,9,0)
538	Safefree (PL_retstack);	558	Safefree (PL_retstack);
539	#endif	559	#endif
540	}	560	}
541		561
		562	static size_t
		563	coro_rss (pTHX_ struct coro *coro)
		564	{
		565	size_t rss = sizeof (*coro);
		566
		567	if (coro->mainstack)
		568	{
		569	if (coro->flags & CF_RUNNING)
		570	{
		571	#define VAR(name,type)coro->name = PL_ ## name;
		572	# include "state.h"
		573	#undef VAR
		574	}
		575
		576	rss += sizeof (coro->curstackinfo);
		577	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		578	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		579	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		580	rss += coro->tmps_max * sizeof (SV *);
		581	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		582	rss += coro->scopestack_max * sizeof (I32);
		583	rss += coro->savestack_max * sizeof (ANY);
		584
		585	#if !PERL_VERSION_ATLEAST (5,9,0)
		586	rss += coro->retstack_max * sizeof (OP *);
		587	#endif
		588	}
		589
		590	return rss;
		591	}
		592
542	/ coroutine stack handling **********************************************/	593	/ coroutine stack handling **********************************************/
543		594
544	static void	595	static void
545	setup_coro (pTHX_ struct coro *coro)	596	coro_setup (pTHX_ struct coro *coro)
546	{	597	{
547	/*	598	/*
548	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
549	*/	600	*/
550	coro_init_stacks (aTHX);	601	coro_init_stacks (aTHX);
551		602
		603	PL_runops = RUNOPS_DEFAULT;
552	PL_curcop = &PL_compiling;	604	PL_curcop = &PL_compiling;
553	PL_in_eval = EVAL_NULL;	605	PL_in_eval = EVAL_NULL;
554	PL_comppad = 0;	606	PL_comppad = 0;
555	PL_curpm = 0;	607	PL_curpm = 0;
556	PL_localizing = 0;	608	PL_localizing = 0;
557	PL_dirty = 0;	609	PL_dirty = 0;
558	PL_restartop = 0;	610	PL_restartop = 0;
		611
		612	GvSV (PL_defgv) = newSV (0);
		613	GvAV (PL_defgv) = coro->args; coro->args = 0;
		614	GvSV (PL_errgv) = newSV (0);
		615	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		616	PL_rs = newSVsv (GvSV (irsgv));
		617	PL_defoutgv = SvREFCNT_inc (stdoutgv);
		618
		619	ENTER; /* necessary e.g. for dounwind */
559		620
560	{	621	{
561	dSP;	622	dSP;
562	LOGOP myop;	623	LOGOP myop;
563		624
564	SvREFCNT_dec (GvAV (PL_defgv));
565	GvAV (PL_defgv) = coro->args; coro->args = 0;
566
567	Zero (&myop, 1, LOGOP);	625	Zero (&myop, 1, LOGOP);
568	myop.op_next = Nullop;	626	myop.op_next = Nullop;
569	myop.op_flags = OPf_WANT_VOID;	627	myop.op_flags = OPf_WANT_VOID;
570		628
571	PUSHMARK (SP);	629	PUSHMARK (SP);
572	XPUSHs (av_shift (GvAV (PL_defgv)));	630	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
573	PUTBACK;	631	PUTBACK;
574	PL_op = (OP *)&myop;	632	PL_op = (OP *)&myop;
575	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	633	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
576	SPAGAIN;	634	SPAGAIN;
577	}	635	}
		636	}
578		637
579	ENTER; /* necessary e.g. for dounwind */	638	static void
		639	coro_destroy (pTHX_ struct coro *coro)
		640	{
		641	if (!IN_DESTRUCT)
		642	{
		643	/* restore all saved variables and stuff */
		644	LEAVE_SCOPE (0);
		645	assert (PL_tmps_floor == -1);
		646
		647	/* free all temporaries */
		648	FREETMPS;
		649	assert (PL_tmps_ix == -1);
		650
		651	/* unwind all extra stacks */
		652	POPSTACK_TO (PL_mainstack);
		653
		654	/* unwind main stack */
		655	dounwind (-1);
		656	}
		657
		658	SvREFCNT_dec (GvSV (PL_defgv));
		659	SvREFCNT_dec (GvAV (PL_defgv));
		660	SvREFCNT_dec (GvSV (PL_errgv));
		661	SvREFCNT_dec (PL_defoutgv);
		662	SvREFCNT_dec (PL_rs);
		663	SvREFCNT_dec (GvSV (irsgv));
		664
		665	SvREFCNT_dec (coro->saved_deffh);
		666	//SvREFCNT_dec (coro->throw);
		667
		668	coro_destroy_stacks (aTHX);
580	}	669	}
581		670
582	static void	671	static void
583	free_coro_mortal (pTHX)	672	free_coro_mortal (pTHX)
584	{	673	{
585	if (coro_mortal)	674	if (coro_mortal)
586	{	675	{
587	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
588	coro_mortal = 0;	677	coro_mortal = 0;
589	}	678	}
		679	}
		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	av_extend (av, top - bot);
		714	while (bot < top)
		715	av_push (av, SvREFCNT_inc (*bot++));
		716
		717	PL_runops = RUNOPS_DEFAULT;
		718	ENTER;
		719	SAVETMPS;
		720	EXTEND (SP, 3);
		721	PUSHMARK (SP);
		722	PUSHs (&PL_sv_no);
		723	PUSHs (fullname);
		724	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		725	PUTBACK;
		726	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		727	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		728	SPAGAIN;
		729	FREETMPS;
		730	LEAVE;
		731	PL_runops = runops_trace;
		732	}
		733
		734	if (oldcop != PL_curcop)
		735	{
		736	oldcop = PL_curcop;
		737
		738	if (PL_curcop != &PL_compiling)
		739	{
		740	SV **cb;
		741
		742	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		743	{
		744	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		745
		746	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		747	{
		748	runops_proc_t old_runops = PL_runops;
		749	dSP;
		750	GV *gv = CvGV (cx->blk_sub.cv);
		751	SV *fullname = sv_2mortal (newSV (0));
		752
		753	if (isGV (gv))
		754	gv_efullname3 (fullname, gv, 0);
		755
		756	PL_runops = RUNOPS_DEFAULT;
		757	ENTER;
		758	SAVETMPS;
		759	EXTEND (SP, 3);
		760	PUSHMARK (SP);
		761	PUSHs (&PL_sv_yes);
		762	PUSHs (fullname);
		763	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		764	PUTBACK;
		765	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		766	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		767	SPAGAIN;
		768	FREETMPS;
		769	LEAVE;
		770	PL_runops = runops_trace;
		771	}
		772
		773	oldcxix = cxstack_ix;
		774	}
		775
		776	if (cctx->flags & CC_TRACE_LINE)
		777	{
		778	dSP;
		779
		780	PL_runops = RUNOPS_DEFAULT;
		781	ENTER;
		782	SAVETMPS;
		783	EXTEND (SP, 3);
		784	PL_runops = RUNOPS_DEFAULT;
		785	PUSHMARK (SP);
		786	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		787	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		788	PUTBACK;
		789	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		790	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		791	SPAGAIN;
		792	FREETMPS;
		793	LEAVE;
		794	PL_runops = runops_trace;
		795	}
		796	}
		797	}
		798	}
		799	}
		800
		801	TAINT_NOT;
		802	return 0;
590	}	803	}
591		804
592	/* inject a fake call to Coro::State::_cctx_init into the execution */	805	/* inject a fake call to Coro::State::_cctx_init into the execution */
593	/* _cctx_init should be careful, as it could be called at almost any time */	806	/* _cctx_init should be careful, as it could be called at almost any time */
594	/* during execution of a perl program */	807	/* during execution of a perl program */
595	static void NOINLINE	808	static void NOINLINE
596	prepare_cctx (pTHX_ coro_cctx *cctx)	809	prepare_cctx (pTHX_ coro_cctx *cctx)
597	{	810	{
598	dSP;	811	dSP;
599	LOGOP myop;	812	LOGOP myop;
		813
		814	PL_top_env = &PL_start_env;
		815
		816	if (cctx->flags & CC_TRACE)
		817	PL_runops = runops_trace;
600		818
601	Zero (&myop, 1, LOGOP);	819	Zero (&myop, 1, LOGOP);
602	myop.op_next = PL_op;	820	myop.op_next = PL_op;
603	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	821	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
604		822
…		…
621	dTHX;	839	dTHX;
622		840
623	/* coro_run is the alternative tail of transfer(), so unlock here. */	841	/* coro_run is the alternative tail of transfer(), so unlock here. */
624	UNLOCK;	842	UNLOCK;
625		843
626	PL_top_env = &PL_start_env;	844	/* we now skip the entersub that lead to transfer() */
		845	PL_op = PL_op->op_next;
627		846
628	/* inject a fake subroutine call to cctx_init */	847	/* inject a fake subroutine call to cctx_init */
629	prepare_cctx (aTHX_ (coro_cctx *)arg);	848	prepare_cctx (aTHX_ (coro_cctx *)arg);
630		849
631	/* somebody or something will hit me for both perl_run and PL_restartop */	850	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
665	# if CORO_STACKGUARD	884	# if CORO_STACKGUARD
666	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	885	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
667	# endif	886	# endif
668	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	887	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
669	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	888	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
670	cctx->mapped = 1;	889	cctx->flags \|= CC_MAPPED;
671	}	890	}
672	else	891	else
673	#endif	892	#endif
674	{	893	{
675	cctx->ssize = coro_stacksize * (long)sizeof (long);	894	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
702	#if CORO_USE_VALGRIND	921	#if CORO_USE_VALGRIND
703	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	922	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
704	#endif	923	#endif
705		924
706	#if HAVE_MMAP	925	#if HAVE_MMAP
707	if (cctx->mapped)	926	if (cctx->flags & CC_MAPPED)
708	munmap (cctx->sptr, cctx->ssize);	927	munmap (cctx->sptr, cctx->ssize);
709	else	928	else
710	#endif	929	#endif
711	Safefree (cctx->sptr);	930	Safefree (cctx->sptr);
712		931
713	Safefree (cctx);	932	Safefree (cctx);
714	}	933	}
		934
		935	/* wether this cctx should be destructed */
		936	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
715		937
716	static coro_cctx *	938	static coro_cctx *
717	cctx_get (pTHX)	939	cctx_get (pTHX)
718	{	940	{
719	while (cctx_first)	941	while (cctx_first)
720	{	942	{
721	coro_cctx *cctx = cctx_first;	943	coro_cctx *cctx = cctx_first;
722	cctx_first = cctx->next;	944	cctx_first = cctx->next;
723	--cctx_idle;	945	--cctx_idle;
724		946
725	if (cctx->ssize >= coro_stacksize)	947	if (!CCTX_EXPIRED (cctx))
726	return cctx;	948	return cctx;
727		949
728	cctx_destroy (cctx);	950	cctx_destroy (cctx);
729	}	951	}
730		952
731	PL_op = PL_op->op_next;
732	return cctx_new ();	953	return cctx_new ();
733	}	954	}
734		955
735	static void	956	static void
736	cctx_put (coro_cctx *cctx)	957	cctx_put (coro_cctx *cctx)
…		…
740	{	961	{
741	coro_cctx *first = cctx_first;	962	coro_cctx *first = cctx_first;
742	cctx_first = first->next;	963	cctx_first = first->next;
743	--cctx_idle;	964	--cctx_idle;
744		965
745	assert (!first->inuse);
746	cctx_destroy (first);	966	cctx_destroy (first);
747	}	967	}
748		968
749	++cctx_idle;	969	++cctx_idle;
750	cctx->next = cctx_first;	970	cctx->next = cctx_first;
751	cctx_first = cctx;	971	cctx_first = cctx;
752	}	972	}
753		973
754	/ coroutine switching ***************************************************/	974	/ coroutine switching ***************************************************/
755		975
756	/* never call directly, always through the coro_state_transfer global variable */	976	static void NOINLINE
		977	transfer_check (pTHX_ struct coro prev, struct coro next)
		978	{
		979	if (prev != next)
		980	{
		981	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		982	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		983
		984	if (next->flags & CF_RUNNING)
		985	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		986
		987	if (next->flags & CF_DESTROYED)
		988	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		989
		990	if (PL_lex_state != LEX_NOTPARSING)
		991	croak ("Coro::State::transfer called while parsing, but this is not supported");
		992	}
		993	}
		994
		995	/* always use the TRANSFER macro */
757	static void NOINLINE	996	static void NOINLINE
758	transfer (pTHX_ struct coro prev, struct coro next)	997	transfer (pTHX_ struct coro prev, struct coro next)
759	{	998	{
760	dSTACKLEVEL;	999	dSTACKLEVEL;
761		1000
…		…
771		1010
772	if (prev->flags & CF_NEW)	1011	if (prev->flags & CF_NEW)
773	{	1012	{
774	/* create a new empty context */	1013	/* create a new empty context */
775	Newz (0, prev->cctx, 1, coro_cctx);	1014	Newz (0, prev->cctx, 1, coro_cctx);
776	prev->cctx->inuse = 1;
777	prev->flags &= ~CF_NEW;	1015	prev->flags &= ~CF_NEW;
778	prev->flags \|= CF_RUNNING;	1016	prev->flags \|= CF_RUNNING;
779	}	1017	}
780
781	/TODO: must not croak here /
782	if (!prev->flags & CF_RUNNING)
783	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
784
785	if (next->flags & CF_RUNNING)
786	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
787
788	if (next->flags & CF_DESTROYED)
789	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
790		1018
791	prev->flags &= ~CF_RUNNING;	1019	prev->flags &= ~CF_RUNNING;
792	next->flags \|= CF_RUNNING;	1020	next->flags \|= CF_RUNNING;
793		1021
794	LOCK;	1022	LOCK;
…		…
798	/* need to start coroutine */	1026	/* need to start coroutine */
799	next->flags &= ~CF_NEW;	1027	next->flags &= ~CF_NEW;
800	/* first get rid of the old state */	1028	/* first get rid of the old state */
801	save_perl (aTHX_ prev);	1029	save_perl (aTHX_ prev);
802	/* setup coroutine call */	1030	/* setup coroutine call */
803	setup_coro (aTHX_ next);	1031	coro_setup (aTHX_ next);
804	/* need a new stack */
805	assert (!next->cctx);
806	}	1032	}
807	else	1033	else
808	{	1034	{
809	/* coroutine already started */	1035	/* coroutine already started */
810	save_perl (aTHX_ prev);	1036	save_perl (aTHX_ prev);
…		…
812	}	1038	}
813		1039
814	prev__cctx = prev->cctx;	1040	prev__cctx = prev->cctx;
815		1041
816	/* possibly "free" the cctx */	1042	/* possibly "free" the cctx */
817	if (prev__cctx->idle_sp == STACKLEVEL)	1043	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
818	{	1044	{
819	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1045	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
820	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1046	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
821		1047
822	prev->cctx = 0;	1048	prev->cctx = 0;
823		1049
		1050	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1051	if (CCTX_EXPIRED (prev__cctx))
		1052	next->cctx = cctx_get (aTHX);
		1053
824	cctx_put (prev__cctx);	1054	cctx_put (prev__cctx);
825	prev__cctx->inuse = 0;
826	}	1055	}
827		1056
		1057	++next->usecount;
		1058
828	if (!next->cctx)	1059	if (!next->cctx)
829	{
830	next->cctx = cctx_get (aTHX);	1060	next->cctx = cctx_get (aTHX);
831	assert (!next->cctx->inuse);
832	next->cctx->inuse = 1;
833	}
834		1061
835	if (prev__cctx != next->cctx)	1062	if (prev__cctx != next->cctx)
836	{	1063	{
837	prev__cctx->top_env = PL_top_env;	1064	prev__cctx->top_env = PL_top_env;
838	PL_top_env = next->cctx->top_env;	1065	PL_top_env = next->cctx->top_env;
…		…
848	{	1075	{
849	struct coro prev, next;	1076	struct coro prev, next;
850	};	1077	};
851		1078
852	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1079	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1080	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
853		1081
854	/ high level stuff ******************************************************/	1082	/ high level stuff ******************************************************/
855		1083
856	static int	1084	static int
857	coro_state_destroy (pTHX_ struct coro *coro)	1085	coro_state_destroy (pTHX_ struct coro *coro)
…		…
874		1102
875	if (coro->mainstack && coro->mainstack != main_mainstack)	1103	if (coro->mainstack && coro->mainstack != main_mainstack)
876	{	1104	{
877	struct coro temp;	1105	struct coro temp;
878		1106
879	assert (!(coro->flags & CF_RUNNING));
880
881	Zero (&temp, 1, struct coro);
882	temp.save = CORO_SAVE_DEF;
883
884	if (coro->flags & CF_RUNNING)	1107	if (coro->flags & CF_RUNNING)
885	croak ("FATAL: tried to destroy currently running coroutine");	1108	croak ("FATAL: tried to destroy currently running coroutine");
886		1109
887	save_perl (aTHX_ &temp);	1110	save_perl (aTHX_ &temp);
888	load_perl (aTHX_ coro);	1111	load_perl (aTHX_ coro);
889		1112
890	coro_destroy_stacks (aTHX);	1113	coro_destroy (aTHX_ coro);
891		1114
892	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1115	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
893		1116
894	coro->mainstack = 0;	1117	coro->mainstack = 0;
895	}	1118	}
896		1119
897	cctx_destroy (coro->cctx);	1120	cctx_destroy (coro->cctx);
898	SvREFCNT_dec (coro->args);	1121	SvREFCNT_dec (coro->args);
899		1122
		1123	if (coro->next) coro->next->prev = coro->prev;
		1124	if (coro->prev) coro->prev->next = coro->next;
		1125	if (coro == coro_first) coro_first = coro->next;
		1126
900	return 1;	1127	return 1;
901	}	1128	}
902		1129
903	static int	1130	static int
904	coro_state_free (pTHX_ SV sv, MAGIC mg)	1131	coro_state_free (pTHX_ SV sv, MAGIC mg)
905	{	1132	{
906	struct coro coro = (struct coro )mg->mg_ptr;	1133	struct coro coro = (struct coro )mg->mg_ptr;
907	mg->mg_ptr = 0;	1134	mg->mg_ptr = 0;
		1135
		1136	coro->hv = 0;
908		1137
909	if (--coro->refcnt < 0)	1138	if (--coro->refcnt < 0)
910	{	1139	{
911	coro_state_destroy (aTHX_ coro);	1140	coro_state_destroy (aTHX_ coro);
912	Safefree (coro);	1141	Safefree (coro);
…		…
934	#else	1163	#else
935	# define MGf_DUP 0	1164	# define MGf_DUP 0
936	#endif	1165	#endif
937	};	1166	};
938		1167
939	static struct coro *
940	SvSTATE_ (pTHX_ SV *coro)
941	{
942	HV *stash;
943	MAGIC *mg;
944
945	if (SvROK (coro))
946	coro = SvRV (coro);
947
948	stash = SvSTASH (coro);
949	if (stash != coro_stash && stash != coro_state_stash)
950	{
951	/* very slow, but rare, check */
952	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
953	croak ("Coro::State object required");
954	}
955
956	mg = CORO_MAGIC (coro);
957	return (struct coro *)mg->mg_ptr;
958	}
959
960	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
961
962	static void	1168	static void
963	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1169	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
964	{	1170	{
965	ta->prev = SvSTATE (prev_sv);	1171	ta->prev = SvSTATE (prev_sv);
966	ta->next = SvSTATE (next_sv);	1172	ta->next = SvSTATE (next_sv);
		1173	TRANSFER_CHECK (*ta);
967	}	1174	}
968		1175
969	static void	1176	static void
970	api_transfer (SV prev_sv, SV next_sv)	1177	api_transfer (SV prev_sv, SV next_sv)
971	{	1178	{
972	dTHX;	1179	dTHX;
973	struct transfer_args ta;	1180	struct transfer_args ta;
974		1181
975	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1182	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
976	TRANSFER (ta);	1183	TRANSFER (ta);
977	}
978
979	static int
980	api_save (SV *coro_sv, int new_save)
981	{
982	dTHX;
983	struct coro *coro = SvSTATE (coro_sv);
984	int old_save = coro->save;
985
986	if (new_save >= 0)
987	coro->save = new_save;
988
989	return old_save;
990	}	1184	}
991		1185
992	/ Coro ******************************************************************/	1186	/ Coro ******************************************************************/
993		1187
994	static void	1188	static void
…		…
1088	break;	1282	break;
1089	}	1283	}
1090		1284
1091	/* free this only after the transfer */	1285	/* free this only after the transfer */
1092	prev_sv = SvRV (coro_current);	1286	prev_sv = SvRV (coro_current);
1093	SvRV_set (coro_current, next_sv);
1094	ta->prev = SvSTATE (prev_sv);	1287	ta->prev = SvSTATE (prev_sv);
1095		1288	TRANSFER_CHECK (*ta);
1096	assert (ta->next->flags & CF_READY);	1289	assert (ta->next->flags & CF_READY);
1097	ta->next->flags &= ~CF_READY;	1290	ta->next->flags &= ~CF_READY;
		1291	SvRV_set (coro_current, next_sv);
1098		1292
1099	LOCK;	1293	LOCK;
1100	free_coro_mortal (aTHX);	1294	free_coro_mortal (aTHX);
1101	coro_mortal = prev_sv;	1295	coro_mortal = prev_sv;
1102	UNLOCK;	1296	UNLOCK;
…		…
1163	}	1357	}
1164	else	1358	else
1165	return 0;	1359	return 0;
1166	}	1360	}
1167		1361
		1362	static void
		1363	api_trace (SV *coro_sv, int flags)
		1364	{
		1365	dTHX;
		1366	struct coro *coro = SvSTATE (coro_sv);
		1367
		1368	if (flags & CC_TRACE)
		1369	{
		1370	if (!coro->cctx)
		1371	coro->cctx = cctx_new ();
		1372	else if (!(coro->cctx->flags & CC_TRACE))
		1373	croak ("cannot enable tracing on coroutine with custom stack");
		1374
		1375	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1376	}
		1377	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1378	{
		1379	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1380
		1381	if (coro->flags & CF_RUNNING)
		1382	PL_runops = RUNOPS_DEFAULT;
		1383	else
		1384	coro->runops = RUNOPS_DEFAULT;
		1385	}
		1386	}
		1387
1168	MODULE = Coro::State PACKAGE = Coro::State	1388	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1169		1389
1170	PROTOTYPES: DISABLE	1390	PROTOTYPES: DISABLE
1171		1391
1172	BOOT:	1392	BOOT:
1173	{	1393	{
1174	#ifdef USE_ITHREADS	1394	#ifdef USE_ITHREADS
1175	MUTEX_INIT (&coro_mutex);	1395	MUTEX_INIT (&coro_mutex);
1176	#endif	1396	#endif
1177	BOOT_PAGESIZE;	1397	BOOT_PAGESIZE;
1178		1398
		1399	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1400	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1401
1179	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1402	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1180		1403
1181	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1404	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1182	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1405	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1183	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1184	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1185	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1186	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1406	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1187	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1407	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1188		1408
1189	main_mainstack = PL_mainstack;	1409	main_mainstack = PL_mainstack;
1190	main_top_env = PL_top_env;	1410	main_top_env = PL_top_env;
1191		1411
1192	while (main_top_env->je_prev)	1412	while (main_top_env->je_prev)
…		…
1205	struct coro *coro;	1425	struct coro *coro;
1206	HV *hv;	1426	HV *hv;
1207	int i;	1427	int i;
1208		1428
1209	Newz (0, coro, 1, struct coro);	1429	Newz (0, coro, 1, struct coro);
1210	coro->args = newAV ();	1430	coro->args = newAV ();
1211	coro->save = CORO_SAVE_DEF;
1212	coro->flags = CF_NEW;	1431	coro->flags = CF_NEW;
1213		1432
		1433	if (coro_first) coro_first->prev = coro;
		1434	coro->next = coro_first;
		1435	coro_first = coro;
		1436
1214	hv = newHV ();	1437	coro->hv = hv = newHV ();
1215	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1438	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1216	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1439	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1217		1440
		1441	av_extend (coro->args, items - 1);
1218	for (i = 1; i < items; i++)	1442	for (i = 1; i < items; i++)
1219	av_push (coro->args, newSVsv (ST (i)));	1443	av_push (coro->args, newSVsv (ST (i)));
1220	}	1444	}
1221	OUTPUT:	1445	OUTPUT:
1222	RETVAL	1446	RETVAL
1223		1447
1224	int	1448	# these not obviously related functions are all rolled into the same xs
1225	save (SV *coro, int new_save = -1)	1449	# function to increase chances that they all will call transfer with the same
1226	CODE:	1450	# stack offset
1227	RETVAL = api_save (coro, new_save);
1228	OUTPUT:
1229	RETVAL
1230
1231	int
1232	save_also (SV *coro_sv, int save_also)
1233	CODE:
1234	{
1235	struct coro *coro = SvSTATE (coro_sv);
1236	RETVAL = coro->save;
1237	coro->save \|= save_also;
1238	}
1239	OUTPUT:
1240	RETVAL
1241
1242	void	1451	void
1243	_set_stacklevel (...)	1452	_set_stacklevel (...)
1244	ALIAS:	1453	ALIAS:
1245	Coro::State::transfer = 1	1454	Coro::State::transfer = 1
1246	Coro::schedule = 2	1455	Coro::schedule = 2
…		…
1321	CODE:	1530	CODE:
1322	RETVAL = cctx_idle;	1531	RETVAL = cctx_idle;
1323	OUTPUT:	1532	OUTPUT:
1324	RETVAL	1533	RETVAL
1325		1534
		1535	void
		1536	list ()
		1537	PPCODE:
		1538	{
		1539	struct coro *coro;
		1540	for (coro = coro_first; coro; coro = coro->next)
		1541	if (coro->hv)
		1542	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1543	}
		1544
		1545	void
		1546	call (Coro::State coro, SV *coderef)
		1547	ALIAS:
		1548	eval = 1
		1549	CODE:
		1550	{
		1551	if (coro->mainstack)
		1552	{
		1553	struct coro temp;
		1554	Zero (&temp, 1, struct coro);
		1555
		1556	if (!(coro->flags & CF_RUNNING))
		1557	{
		1558	save_perl (aTHX_ &temp);
		1559	load_perl (aTHX_ coro);
		1560	}
		1561
		1562	{
		1563	dSP;
		1564	ENTER;
		1565	SAVETMPS;
		1566	PUSHMARK (SP);
		1567	PUTBACK;
		1568	if (ix)
		1569	eval_sv (coderef, 0);
		1570	else
		1571	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1572	SPAGAIN;
		1573	FREETMPS;
		1574	LEAVE;
		1575	PUTBACK;
		1576	}
		1577
		1578	if (!(coro->flags & CF_RUNNING))
		1579	{
		1580	save_perl (aTHX_ coro);
		1581	load_perl (aTHX_ &temp);
		1582	}
		1583	}
		1584	}
		1585
		1586	SV *
		1587	is_ready (Coro::State coro)
		1588	PROTOTYPE: $
		1589	ALIAS:
		1590	is_ready = CF_READY
		1591	is_running = CF_RUNNING
		1592	is_new = CF_NEW
		1593	is_destroyed = CF_DESTROYED
		1594	CODE:
		1595	RETVAL = boolSV (coro->flags & ix);
		1596	OUTPUT:
		1597	RETVAL
		1598
		1599	void
		1600	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1601
		1602	SV *
		1603	has_stack (Coro::State coro)
		1604	PROTOTYPE: $
		1605	CODE:
		1606	RETVAL = boolSV (!!coro->cctx);
		1607	OUTPUT:
		1608	RETVAL
		1609
		1610	int
		1611	is_traced (Coro::State coro)
		1612	PROTOTYPE: $
		1613	CODE:
		1614	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1615	OUTPUT:
		1616	RETVAL
		1617
		1618	IV
		1619	rss (Coro::State coro)
		1620	PROTOTYPE: $
		1621	ALIAS:
		1622	usecount = 1
		1623	CODE:
		1624	switch (ix)
		1625	{
		1626	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1627	case 1: RETVAL = coro->usecount; break;
		1628	}
		1629	OUTPUT:
		1630	RETVAL
		1631
		1632
1326	MODULE = Coro::State PACKAGE = Coro	1633	MODULE = Coro::State PACKAGE = Coro
1327		1634
1328	BOOT:	1635	BOOT:
1329	{	1636	{
1330	int i;	1637	int i;
		1638
		1639	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1640	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1641	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1642
		1643	coro_current = get_sv ("Coro::current", FALSE);
		1644	SvREADONLY_on (coro_current);
1331		1645
1332	coro_stash = gv_stashpv ("Coro", TRUE);	1646	coro_stash = gv_stashpv ("Coro", TRUE);
1333		1647
1334	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1648	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1335	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1649	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1336	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1650	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1337	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1651	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1338	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1652	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1339	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1653	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1340		1654
1341	coro_current = get_sv ("Coro::current", FALSE);
1342	SvREADONLY_on (coro_current);
1343
1344	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1655	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1345	coro_ready[i] = newAV ();	1656	coro_ready[i] = newAV ();
1346		1657
1347	{	1658	{
1348	SV *sv = perl_get_sv("Coro::API", 1);	1659	SV *sv = perl_get_sv("Coro::API", 1);
1349		1660
1350	coroapi.schedule = api_schedule;	1661	coroapi.schedule = api_schedule;
1351	coroapi.save = api_save;
1352	coroapi.cede = api_cede;	1662	coroapi.cede = api_cede;
1353	coroapi.cede_notself = api_cede_notself;	1663	coroapi.cede_notself = api_cede_notself;
1354	coroapi.ready = api_ready;	1664	coroapi.ready = api_ready;
1355	coroapi.is_ready = api_is_ready;	1665	coroapi.is_ready = api_is_ready;
1356	coroapi.nready = &coro_nready;	1666	coroapi.nready = &coro_nready;
…		…
1397	CODE:	1707	CODE:
1398	RETVAL = boolSV (api_ready (self));	1708	RETVAL = boolSV (api_ready (self));
1399	OUTPUT:	1709	OUTPUT:
1400	RETVAL	1710	RETVAL
1401		1711
1402	SV *
1403	is_ready (SV *self)
1404	PROTOTYPE: $
1405	CODE:
1406	RETVAL = boolSV (api_is_ready (self));
1407	OUTPUT:
1408	RETVAL
1409
1410	int	1712	int
1411	nready (...)	1713	nready (...)
1412	PROTOTYPE:	1714	PROTOTYPE:
1413	CODE:	1715	CODE:
1414	RETVAL = coro_nready;	1716	RETVAL = coro_nready;
1415	OUTPUT:	1717	OUTPUT:
1416	RETVAL	1718	RETVAL
1417		1719
		1720	# for async_pool speedup
		1721	void
		1722	_pool_1 (SV *cb)
		1723	CODE:
		1724	{
		1725	struct coro *coro = SvSTATE (coro_current);
		1726	HV hv = (HV )SvRV (coro_current);
		1727	AV *defav = GvAV (PL_defgv);
		1728	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1729	AV *invoke_av;
		1730	int i, len;
		1731
		1732	if (!invoke)
		1733	croak ("\3terminate\2\n");
		1734
		1735	SvREFCNT_dec (coro->saved_deffh);
		1736	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1737
		1738	hv_store (hv, "desc", sizeof ("desc") - 1,
		1739	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1740
		1741	invoke_av = (AV *)SvRV (invoke);
		1742	len = av_len (invoke_av);
		1743
		1744	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1745
		1746	if (len > 0)
		1747	{
		1748	av_fill (defav, len - 1);
		1749	for (i = 0; i < len; ++i)
		1750	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1751	}
		1752
		1753	SvREFCNT_dec (invoke);
		1754	}
		1755
		1756	void
		1757	_pool_2 (SV *cb)
		1758	CODE:
		1759	{
		1760	struct coro *coro = SvSTATE (coro_current);
		1761
		1762	sv_setsv (cb, &PL_sv_undef);
		1763
		1764	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1765	coro->saved_deffh = 0;
		1766
		1767	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1768	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1769	croak ("\3terminate\2\n");
		1770
		1771	av_clear (GvAV (PL_defgv));
		1772	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1773	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1774
		1775	coro->prio = 0;
		1776
		1777	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1778	api_trace (coro_current, 0);
		1779
		1780	av_push (av_async_pool, newSVsv (coro_current));
		1781	}
		1782
		1783
1418	MODULE = Coro::State PACKAGE = Coro::AIO	1784	MODULE = Coro::State PACKAGE = Coro::AIO
1419		1785
1420	SV *	1786	SV *
1421	_get_state ()	1787	_get_state ()
1422	CODE:	1788	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.150 by root, Wed Jun 13 21:04:48 2007 UTC vs. Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.150 by root, Wed Jun 13 21:04:48 2007 UTC vs.
Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC