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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.148 by root, Fri Apr 13 12:56:55 2007 UTC vs.
Revision 1.178 by root, Wed Oct 3 01:48:06 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
…		…
133	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
134	static JMPENV *main_top_env;	133	static JMPENV *main_top_env;
135	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
136	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
137		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
138	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
139	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	};
140		155
141	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
142	typedef struct coro_cctx {	157	typedef struct coro_cctx {
143	struct coro_cctx *next;	158	struct coro_cctx *next;
144		159
…		…
153	coro_context cctx;	168	coro_context cctx;
154		169
155	#if CORO_USE_VALGRIND	170	#if CORO_USE_VALGRIND
156	int valgrind_id;	171	int valgrind_id;
157	#endif	172	#endif
158	char inuse, mapped;	173	unsigned char flags;
159	} coro_cctx;	174	} coro_cctx;
160		175
161	enum {	176	enum {
162	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
163	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
…		…
171	coro_cctx *cctx;	186	coro_cctx *cctx;
172		187
173	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
174	AV *args;	189	AV *args;
175	int refcnt;	190	int refcnt;
176	int save; /* CORO_SAVE flags */
177	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
178		192
179	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
180	AV defav; / @_ */	194	AV defav; / @_ */
181	SV defsv; / $_ */	195	SV defsv; / $_ */
182	SV errsv; / $@ */	196	SV errsv; / $@ */
183	GV deffh; / default filehandle */	197	IO deffh; / default filehandle */
184	SV irssv; / $/ */	198	SV irssv; / $/ */
185	SV irssv_sv; / real $/ cache */	199	SV irssv_sv; / real $/ cache */
186		200
187	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
188	# include "state.h"	202	# include "state.h"
189	#undef VAR	203	#undef VAR
190		204
		205	/* statistics */
		206	int usecount; /* number of switches to this coro */
		207
191	/* coro process data */	208	/* coro process data */
192	int prio;	209	int prio;
		210
		211	/* linked list */
		212	struct coro next, prev;
		213	HV hv; / the perl hash associated with this coro, if any */
193	};	214	};
194		215
195	typedef struct coro *Coro__State;	216	typedef struct coro *Coro__State;
196	typedef struct coro *Coro__State_or_hashref;	217	typedef struct coro *Coro__State_or_hashref;
197		218
…		…
206		227
207	/* for Coro.pm */	228	/* for Coro.pm */
208	static SV *coro_current;	229	static SV *coro_current;
209	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	230	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
210	static int coro_nready;	231	static int coro_nready;
		232	static struct coro *coro_first;
211		233
212	/ lowlevel stuff ********************************************************/	234	/ lowlevel stuff ********************************************************/
213		235
214	static AV *	236	static AV *
215	coro_clone_padlist (pTHX_ CV *cv)	237	coro_clone_padlist (pTHX_ CV *cv)
…		…
280	SvMAGIC (cv) \	302	SvMAGIC (cv) \
281	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	303	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
282	? SvMAGIC (cv) \	304	? SvMAGIC (cv) \
283	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	305	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
284	: 0	306	: 0
		307
		308	static struct coro *
		309	SvSTATE_ (pTHX_ SV *coro)
		310	{
		311	HV *stash;
		312	MAGIC *mg;
		313
		314	if (SvROK (coro))
		315	coro = SvRV (coro);
		316
		317	if (SvTYPE (coro) != SVt_PVHV)
		318	croak ("Coro::State object required");
		319
		320	stash = SvSTASH (coro);
		321	if (stash != coro_stash && stash != coro_state_stash)
		322	{
		323	/* very slow, but rare, check */
		324	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		325	croak ("Coro::State object required");
		326	}
		327
		328	mg = CORO_MAGIC (coro);
		329	return (struct coro *)mg->mg_ptr;
		330	}
		331
		332	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
285		333
286	/* the next two functions merely cache the padlists */	334	/* the next two functions merely cache the padlists */
287	static void	335	static void
288	get_padlist (pTHX_ CV *cv)	336	get_padlist (pTHX_ CV *cv)
289	{	337	{
…		…
328	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	376	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
329	}	377	}
330		378
331	/ load & save, init *****************************************************/	379	/ load & save, init *****************************************************/
332		380
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	381	static void
339	load_perl (pTHX_ Coro__State c)	382	load_perl (pTHX_ Coro__State c)
340	{	383	{
341	#define VAR(name,type) PL_ ## name = c->name;	384	#define VAR(name,type) PL_ ## name = c->name;
342	# include "state.h"	385	# include "state.h"
343	#undef VAR	386	#undef VAR
344		387
345	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	388	GvSV (PL_defgv) = c->defsv;
346	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	389	GvAV (PL_defgv) = c->defav;
347	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	390	GvSV (PL_errgv) = c->errsv;
348	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	391	GvIOp(PL_defoutgv) = c->deffh;
349		392	PL_rs = c->irssv;
350	if (c->irssv)	393	GvSV (irsgv) = c->irssv_sv;
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		394
365	{	395	{
366	dSP;	396	dSP;
367	CV *cv;	397	CV *cv;
368		398
…		…
374	CvPADLIST (cv) = (AV *)POPs;	404	CvPADLIST (cv) = (AV *)POPs;
375	}	405	}
376		406
377	PUTBACK;	407	PUTBACK;
378	}	408	}
379	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
380	}	409	}
381		410
382	static void	411	static void
383	save_perl (pTHX_ Coro__State c)	412	save_perl (pTHX_ Coro__State c)
384	{	413	{
385	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
386	{	414	{
387	dSP;	415	dSP;
388	I32 cxix = cxstack_ix;	416	I32 cxix = cxstack_ix;
389	PERL_CONTEXT *ccstk = cxstack;	417	PERL_CONTEXT *ccstk = cxstack;
390	PERL_SI *top_si = PL_curstackinfo;	418	PERL_SI *top_si = PL_curstackinfo;
…		…
392	/*	420	/*
393	* the worst thing you can imagine happens first - we have to save	421	* the worst thing you can imagine happens first - we have to save
394	* (and reinitialize) all cv's in the whole callchain :(	422	* (and reinitialize) all cv's in the whole callchain :(
395	*/	423	*/
396		424
397	EXTEND (SP, 3 + 1);
398	PUSHs (Nullsv);	425	XPUSHs (Nullsv);
399	/* this loop was inspired by pp_caller */	426	/* this loop was inspired by pp_caller */
400	for (;;)	427	for (;;)
401	{	428	{
402	while (cxix >= 0)	429	while (cxix >= 0)
403	{	430	{
404	PERL_CONTEXT *cx = &ccstk[cxix--];	431	PERL_CONTEXT *cx = &ccstk[cxix--];
405		432
406	if (CxTYPE (cx) == CXt_SUB)	433	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
407	{	434	{
408	CV *cv = cx->blk_sub.cv;	435	CV *cv = cx->blk_sub.cv;
409		436
410	if (CvDEPTH (cv))	437	if (CvDEPTH (cv))
411	{	438	{
…		…
422		449
423	if (top_si->si_type == PERLSI_MAIN)	450	if (top_si->si_type == PERLSI_MAIN)
424	break;	451	break;
425		452
426	top_si = top_si->si_prev;	453	top_si = top_si->si_prev;
427	ccstk = top_si->si_cxstack;	454	ccstk = top_si->si_cxstack;
428	cxix = top_si->si_cxix;	455	cxix = top_si->si_cxix;
429	}	456	}
430		457
431	PUTBACK;	458	PUTBACK;
432	}	459	}
433		460
434	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	461	c->defav = GvAV (PL_defgv);
435	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	462	c->defsv = DEFSV;
436	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	463	c->errsv = ERRSV;
437	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	464	c->deffh = GvIOp (PL_defoutgv);
438	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	465	c->irssv = PL_rs;
		466	c->irssv_sv = GvSV (irsgv);
439		467
440	#define VAR(name,type)c->name = PL_ ## name;	468	#define VAR(name,type)c->name = PL_ ## name;
441	# include "state.h"	469	# include "state.h"
442	#undef VAR	470	#undef VAR
443	}	471	}
…		…
452	# define coro_init_stacks init_stacks	480	# define coro_init_stacks init_stacks
453	#else	481	#else
454	static void	482	static void
455	coro_init_stacks (pTHX)	483	coro_init_stacks (pTHX)
456	{	484	{
457	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	485	PL_curstackinfo = new_stackinfo(64, 6);
458	PL_curstackinfo->si_type = PERLSI_MAIN;	486	PL_curstackinfo->si_type = PERLSI_MAIN;
459	PL_curstack = PL_curstackinfo->si_stack;	487	PL_curstack = PL_curstackinfo->si_stack;
460	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
461		489
462	PL_stack_base = AvARRAY(PL_curstack);	490	PL_stack_base = AvARRAY(PL_curstack);
463	PL_stack_sp = PL_stack_base;	491	PL_stack_sp = PL_stack_base;
464	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
465		493
466	New(50,PL_tmps_stack,128,SV*);	494	New(50,PL_tmps_stack,64,SV*);
467	PL_tmps_floor = -1;	495	PL_tmps_floor = -1;
468	PL_tmps_ix = -1;	496	PL_tmps_ix = -1;
469	PL_tmps_max = 128;	497	PL_tmps_max = 64;
470		498
471	New(54,PL_markstack,32,I32);	499	New(54,PL_markstack,16,I32);
472	PL_markstack_ptr = PL_markstack;	500	PL_markstack_ptr = PL_markstack;
473	PL_markstack_max = PL_markstack + 32;	501	PL_markstack_max = PL_markstack + 16;
474		502
475	#ifdef SET_MARK_OFFSET	503	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	504	SET_MARK_OFFSET;
477	#endif	505	#endif
478		506
479	New(54,PL_scopestack,32,I32);	507	New(54,PL_scopestack,16,I32);
480	PL_scopestack_ix = 0;	508	PL_scopestack_ix = 0;
481	PL_scopestack_max = 32;	509	PL_scopestack_max = 16;
482		510
483	New(54,PL_savestack,64,ANY);	511	New(54,PL_savestack,64,ANY);
484	PL_savestack_ix = 0;	512	PL_savestack_ix = 0;
485	PL_savestack_max = 64;	513	PL_savestack_max = 64;
486		514
487	#if !PERL_VERSION_ATLEAST (5,9,0)	515	#if !PERL_VERSION_ATLEAST (5,9,0)
488	New(54,PL_retstack,16,OP*);	516	New(54,PL_retstack,4,OP*);
489	PL_retstack_ix = 0;	517	PL_retstack_ix = 0;
490	PL_retstack_max = 16;	518	PL_retstack_max = 4;
491	#endif	519	#endif
492	}	520	}
493	#endif	521	#endif
494		522
495	/*	523	/*
496	* destroy the stacks, the callchain etc...	524	* destroy the stacks, the callchain etc...
497	*/	525	*/
498	static void	526	static void
499	coro_destroy_stacks (pTHX)	527	coro_destroy_stacks (pTHX)
500	{	528	{
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)	529	while (PL_curstackinfo->si_next)
519	PL_curstackinfo = PL_curstackinfo->si_next;	530	PL_curstackinfo = PL_curstackinfo->si_next;
520		531
521	while (PL_curstackinfo)	532	while (PL_curstackinfo)
522	{	533	{
…		…
537	#if !PERL_VERSION_ATLEAST (5,9,0)	548	#if !PERL_VERSION_ATLEAST (5,9,0)
538	Safefree (PL_retstack);	549	Safefree (PL_retstack);
539	#endif	550	#endif
540	}	551	}
541		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 (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		569	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		570	rss += 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
542	/ coroutine stack handling **********************************************/	584	/ coroutine stack handling **********************************************/
543		585
544	static void	586	static void
545	setup_coro (pTHX_ struct coro *coro)	587	setup_coro (pTHX_ struct coro *coro)
546	{	588	{
547	/*	589	/*
548	* emulate part of the perl startup here.	590	* emulate part of the perl startup here.
549	*/	591	*/
550	coro_init_stacks (aTHX);	592	coro_init_stacks (aTHX);
551		593
		594	PL_runops = RUNOPS_DEFAULT;
552	PL_curcop = &PL_compiling;	595	PL_curcop = &PL_compiling;
553	PL_in_eval = EVAL_NULL;	596	PL_in_eval = EVAL_NULL;
554	PL_comppad = 0;	597	PL_comppad = 0;
555	PL_curpm = 0;	598	PL_curpm = 0;
556	PL_localizing = 0;	599	PL_localizing = 0;
557	PL_dirty = 0;	600	PL_dirty = 0;
558	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) = newSVsv (PL_rs);
		607	PL_rs = newSVpvn ("\n", 1);
		608
		609	{
		610	IO *io = newIO ();
		611	GvIOp(PL_defoutgv) = io;
		612	IoTYPE (io) = IoTYPE_WRONLY;
		613	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		614	IoFLAGS (io) \|= IOf_FLUSH;
		615	}
559		616
560	{	617	{
561	dSP;	618	dSP;
562	LOGOP myop;	619	LOGOP myop;
563		620
564	SvREFCNT_dec (GvAV (PL_defgv));
565	GvAV (PL_defgv) = coro->args; coro->args = 0;
566
567	Zero (&myop, 1, LOGOP);	621	Zero (&myop, 1, LOGOP);
568	myop.op_next = Nullop;	622	myop.op_next = Nullop;
569	myop.op_flags = OPf_WANT_VOID;	623	myop.op_flags = OPf_WANT_VOID;
570		624
571	PUSHMARK (SP);	625	PUSHMARK (SP);
572	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	626	XPUSHs (av_shift (GvAV (PL_defgv)));
573	PUTBACK;	627	PUTBACK;
574	PL_op = (OP *)&myop;	628	PL_op = (OP *)&myop;
575	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	629	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
576	SPAGAIN;	630	SPAGAIN;
577	}	631	}
578		632
579	ENTER; /* necessary e.g. for dounwind */	633	ENTER; /* necessary e.g. for dounwind */
580	}	634	}
581		635
582	static void	636	static void
		637	destroy_coro (pTHX_ struct coro *coro)
		638	{
		639	if (!IN_DESTRUCT)
		640	{
		641	/* restore all saved variables and stuff */
		642	LEAVE_SCOPE (0);
		643	assert (PL_tmps_floor == -1);
		644
		645	/* free all temporaries */
		646	FREETMPS;
		647	assert (PL_tmps_ix == -1);
		648
		649	/* unwind all extra stacks */
		650	POPSTACK_TO (PL_mainstack);
		651
		652	/* unwind main stack */
		653	dounwind (-1);
		654	}
		655
		656	SvREFCNT_dec (GvSV (PL_defgv));
		657	SvREFCNT_dec (GvAV (PL_defgv));
		658	SvREFCNT_dec (GvSV (PL_errgv));
		659	SvREFCNT_dec (GvIOp(PL_defoutgv));
		660	SvREFCNT_dec (PL_rs);
		661	SvREFCNT_dec (GvSV (irsgv));
		662
		663	coro_destroy_stacks (aTHX);
		664	}
		665
		666	static void
583	free_coro_mortal (pTHX)	667	free_coro_mortal (pTHX)
584	{	668	{
585	if (coro_mortal)	669	if (coro_mortal)
586	{	670	{
587	SvREFCNT_dec (coro_mortal);	671	SvREFCNT_dec (coro_mortal);
588	coro_mortal = 0;	672	coro_mortal = 0;
589	}	673	}
590	}	674	}
591		675
		676	static int
		677	runops_trace (pTHX)
		678	{
		679	COP *oldcop = 0;
		680	int oldcxix = -2;
		681	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		682	coro_cctx *cctx = coro->cctx;
		683
		684	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		685	{
		686	PERL_ASYNC_CHECK ();
		687
		688	if (cctx->flags & CC_TRACE_ALL)
		689	{
		690	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		691	{
		692	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		693	SV bot, top;
		694	AV av = newAV (); / return values */
		695	SV **cb;
		696	dSP;
		697
		698	GV *gv = CvGV (cx->blk_sub.cv);
		699	SV *fullname = sv_2mortal (newSV (0));
		700	if (isGV (gv))
		701	gv_efullname3 (fullname, gv, 0);
		702
		703	bot = PL_stack_base + cx->blk_oldsp + 1;
		704	top = cx->blk_gimme == G_ARRAY ? SP + 1
		705	: cx->blk_gimme == G_SCALAR ? bot + 1
		706	: bot;
		707
		708	while (bot < top)
		709	av_push (av, SvREFCNT_inc (*bot++));
		710
		711	PL_runops = RUNOPS_DEFAULT;
		712	ENTER;
		713	SAVETMPS;
		714	EXTEND (SP, 3);
		715	PUSHMARK (SP);
		716	PUSHs (&PL_sv_no);
		717	PUSHs (fullname);
		718	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		719	PUTBACK;
		720	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		721	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		722	SPAGAIN;
		723	FREETMPS;
		724	LEAVE;
		725	PL_runops = runops_trace;
		726	}
		727
		728	if (oldcop != PL_curcop)
		729	{
		730	oldcop = PL_curcop;
		731
		732	if (PL_curcop != &PL_compiling)
		733	{
		734	SV **cb;
		735
		736	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		737	{
		738	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		739
		740	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		741	{
		742	runops_proc_t old_runops = PL_runops;
		743	dSP;
		744	GV *gv = CvGV (cx->blk_sub.cv);
		745	SV *fullname = sv_2mortal (newSV (0));
		746
		747	if (isGV (gv))
		748	gv_efullname3 (fullname, gv, 0);
		749
		750	PL_runops = RUNOPS_DEFAULT;
		751	ENTER;
		752	SAVETMPS;
		753	EXTEND (SP, 3);
		754	PUSHMARK (SP);
		755	PUSHs (&PL_sv_yes);
		756	PUSHs (fullname);
		757	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		758	PUTBACK;
		759	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		760	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		761	SPAGAIN;
		762	FREETMPS;
		763	LEAVE;
		764	PL_runops = runops_trace;
		765	}
		766
		767	oldcxix = cxstack_ix;
		768	}
		769
		770	if (cctx->flags & CC_TRACE_LINE)
		771	{
		772	dSP;
		773
		774	PL_runops = RUNOPS_DEFAULT;
		775	ENTER;
		776	SAVETMPS;
		777	EXTEND (SP, 3);
		778	PL_runops = RUNOPS_DEFAULT;
		779	PUSHMARK (SP);
		780	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		781	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		782	PUTBACK;
		783	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		784	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		785	SPAGAIN;
		786	FREETMPS;
		787	LEAVE;
		788	PL_runops = runops_trace;
		789	}
		790	}
		791	}
		792	}
		793	}
		794
		795	TAINT_NOT;
		796	return 0;
		797	}
		798
592	/* inject a fake call to Coro::State::_cctx_init into the execution */	799	/* inject a fake call to Coro::State::_cctx_init into the execution */
593	/* _cctx_init shoukld be careful, as it could be called at almost any time */	800	/* _cctx_init should be careful, as it could be called at almost any time */
594	/* during execution of a pelr program */	801	/* during execution of a perl program */
595	static void NOINLINE	802	static void NOINLINE
596	prepare_cctx (pTHX_ coro_cctx *cctx)	803	prepare_cctx (pTHX_ coro_cctx *cctx)
597	{	804	{
598	dSP;	805	dSP;
599	LOGOP myop;	806	LOGOP myop;
		807
		808	PL_top_env = &PL_start_env;
		809
		810	if (cctx->flags & CC_TRACE)
		811	PL_runops = runops_trace;
600		812
601	Zero (&myop, 1, LOGOP);	813	Zero (&myop, 1, LOGOP);
602	myop.op_next = PL_op;	814	myop.op_next = PL_op;
603	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	815	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
604		816
…		…
621	dTHX;	833	dTHX;
622		834
623	/* coro_run is the alternative tail of transfer(), so unlock here. */	835	/* coro_run is the alternative tail of transfer(), so unlock here. */
624	UNLOCK;	836	UNLOCK;
625		837
626	PL_top_env = &PL_start_env;	838	/* we now skip the entersub that lead to transfer() */
		839	PL_op = PL_op->op_next;
627		840
628	/* inject a fake subroutine call to cctx_init */	841	/* inject a fake subroutine call to cctx_init */
629	prepare_cctx (aTHX_ (coro_cctx *)arg);	842	prepare_cctx (aTHX_ (coro_cctx *)arg);
630		843
631	/* somebody or something will hit me for both perl_run and PL_restartop */	844	/* somebody or something will hit me for both perl_run and PL_restartop */
632	PL_restartop = PL_op;	845	PL_restartop = PL_op;
633	perl_run (PL_curinterp);	846	perl_run (PL_curinterp);
634		847
		848	/*
635	/* If perl-run returns we assume exit() was being called, which */	849	* If perl-run returns we assume exit() was being called or the coro
636	/* seems to be the only valid (non-bug) reason for perl_run to return. */	850	* fell off the end, which seems to be the only valid (non-bug)
637	/* We try to exit by jumping to the bootstrap-time "top" top_env, as */	851	* reason for perl_run to return. We try to exit by jumping to the
638	/* we cannot restore the "main" coroutine as Coro has no such concept */	852	* bootstrap-time "top" top_env, as we cannot restore the "main"
		853	* coroutine as Coro has no such concept
		854	*/
639	PL_top_env = main_top_env;	855	PL_top_env = main_top_env;
640	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	856	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
641	}	857	}
642		858
643	static coro_cctx *	859	static coro_cctx *
…		…
662	# if CORO_STACKGUARD	878	# if CORO_STACKGUARD
663	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	879	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
664	# endif	880	# endif
665	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	881	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
666	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	882	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
667	cctx->mapped = 1;	883	cctx->flags \|= CC_MAPPED;
668	}	884	}
669	else	885	else
670	#endif	886	#endif
671	{	887	{
672	cctx->ssize = coro_stacksize * (long)sizeof (long);	888	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
699	#if CORO_USE_VALGRIND	915	#if CORO_USE_VALGRIND
700	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	916	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
701	#endif	917	#endif
702		918
703	#if HAVE_MMAP	919	#if HAVE_MMAP
704	if (cctx->mapped)	920	if (cctx->flags & CC_MAPPED)
705	munmap (cctx->sptr, cctx->ssize);	921	munmap (cctx->sptr, cctx->ssize);
706	else	922	else
707	#endif	923	#endif
708	Safefree (cctx->sptr);	924	Safefree (cctx->sptr);
709		925
…		…
717	{	933	{
718	coro_cctx *cctx = cctx_first;	934	coro_cctx *cctx = cctx_first;
719	cctx_first = cctx->next;	935	cctx_first = cctx->next;
720	--cctx_idle;	936	--cctx_idle;
721		937
722	if (cctx->ssize >= coro_stacksize)	938	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
723	return cctx;	939	return cctx;
724		940
725	cctx_destroy (cctx);	941	cctx_destroy (cctx);
726	}	942	}
727		943
728	PL_op = PL_op->op_next;
729	return cctx_new ();	944	return cctx_new ();
730	}	945	}
731		946
732	static void	947	static void
733	cctx_put (coro_cctx *cctx)	948	cctx_put (coro_cctx *cctx)
…		…
737	{	952	{
738	coro_cctx *first = cctx_first;	953	coro_cctx *first = cctx_first;
739	cctx_first = first->next;	954	cctx_first = first->next;
740	--cctx_idle;	955	--cctx_idle;
741		956
742	assert (!first->inuse);
743	cctx_destroy (first);	957	cctx_destroy (first);
744	}	958	}
745		959
746	++cctx_idle;	960	++cctx_idle;
747	cctx->next = cctx_first;	961	cctx->next = cctx_first;
748	cctx_first = cctx;	962	cctx_first = cctx;
749	}	963	}
750		964
751	/ coroutine switching ***************************************************/	965	/ coroutine switching ***************************************************/
752		966
753	/* never call directly, always through the coro_state_transfer global variable */	967	static void NOINLINE
		968	transfer_check (pTHX_ struct coro prev, struct coro next)
		969	{
		970	if (prev != next)
		971	{
		972	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		973	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		974
		975	if (next->flags & CF_RUNNING)
		976	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		977
		978	if (next->flags & CF_DESTROYED)
		979	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		980
		981	if (PL_lex_state != LEX_NOTPARSING)
		982	croak ("Coro::State::transfer called while parsing, but this is not supported");
		983	}
		984	}
		985
		986	/* always use the TRANSFER macro */
754	static void NOINLINE	987	static void NOINLINE
755	transfer (pTHX_ struct coro prev, struct coro next)	988	transfer (pTHX_ struct coro prev, struct coro next)
756	{	989	{
757	dSTACKLEVEL;	990	dSTACKLEVEL;
758		991
…		…
768		1001
769	if (prev->flags & CF_NEW)	1002	if (prev->flags & CF_NEW)
770	{	1003	{
771	/* create a new empty context */	1004	/* create a new empty context */
772	Newz (0, prev->cctx, 1, coro_cctx);	1005	Newz (0, prev->cctx, 1, coro_cctx);
773	prev->cctx->inuse = 1;
774	prev->flags &= ~CF_NEW;	1006	prev->flags &= ~CF_NEW;
775	prev->flags \|= CF_RUNNING;	1007	prev->flags \|= CF_RUNNING;
776	}	1008	}
777
778	/TODO: must not croak here /
779	if (!prev->flags & CF_RUNNING)
780	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
781
782	if (next->flags & CF_RUNNING)
783	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
784
785	if (next->flags & CF_DESTROYED)
786	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
787		1009
788	prev->flags &= ~CF_RUNNING;	1010	prev->flags &= ~CF_RUNNING;
789	next->flags \|= CF_RUNNING;	1011	next->flags \|= CF_RUNNING;
790		1012
791	LOCK;	1013	LOCK;
…		…
796	next->flags &= ~CF_NEW;	1018	next->flags &= ~CF_NEW;
797	/* first get rid of the old state */	1019	/* first get rid of the old state */
798	save_perl (aTHX_ prev);	1020	save_perl (aTHX_ prev);
799	/* setup coroutine call */	1021	/* setup coroutine call */
800	setup_coro (aTHX_ next);	1022	setup_coro (aTHX_ next);
801	/* need a new stack */
802	assert (!next->cctx);
803	}	1023	}
804	else	1024	else
805	{	1025	{
806	/* coroutine already started */	1026	/* coroutine already started */
807	save_perl (aTHX_ prev);	1027	save_perl (aTHX_ prev);
…		…
809	}	1029	}
810		1030
811	prev__cctx = prev->cctx;	1031	prev__cctx = prev->cctx;
812		1032
813	/* possibly "free" the cctx */	1033	/* possibly "free" the cctx */
814	if (prev__cctx->idle_sp == STACKLEVEL)	1034	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
815	{	1035	{
816	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1036	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
817	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1037	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
818		1038
819	prev->cctx = 0;	1039	prev->cctx = 0;
820		1040
821	cctx_put (prev__cctx);	1041	cctx_put (prev__cctx);
822	prev__cctx->inuse = 0;
823	}	1042	}
824		1043
		1044	++next->usecount;
		1045
825	if (!next->cctx)	1046	if (!next->cctx)
826	{
827	next->cctx = cctx_get (aTHX);	1047	next->cctx = cctx_get (aTHX);
828	assert (!next->cctx->inuse);
829	next->cctx->inuse = 1;
830	}
831		1048
832	if (prev__cctx != next->cctx)	1049	if (prev__cctx != next->cctx)
833	{	1050	{
834	prev__cctx->top_env = PL_top_env;	1051	prev__cctx->top_env = PL_top_env;
835	PL_top_env = next->cctx->top_env;	1052	PL_top_env = next->cctx->top_env;
…		…
845	{	1062	{
846	struct coro prev, next;	1063	struct coro prev, next;
847	};	1064	};
848		1065
849	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1066	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1067	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
850		1068
851	/ high level stuff ******************************************************/	1069	/ high level stuff ******************************************************/
852		1070
853	static int	1071	static int
854	coro_state_destroy (pTHX_ struct coro *coro)	1072	coro_state_destroy (pTHX_ struct coro *coro)
…		…
871		1089
872	if (coro->mainstack && coro->mainstack != main_mainstack)	1090	if (coro->mainstack && coro->mainstack != main_mainstack)
873	{	1091	{
874	struct coro temp;	1092	struct coro temp;
875		1093
876	assert (!(coro->flags & CF_RUNNING));
877
878	Zero (&temp, 1, struct coro);
879	temp.save = CORO_SAVE_DEF;
880
881	if (coro->flags & CF_RUNNING)	1094	if (coro->flags & CF_RUNNING)
882	croak ("FATAL: tried to destroy currently running coroutine");	1095	croak ("FATAL: tried to destroy currently running coroutine");
883		1096
884	save_perl (aTHX_ &temp);	1097	save_perl (aTHX_ &temp);
885	load_perl (aTHX_ coro);	1098	load_perl (aTHX_ coro);
886		1099
887	coro_destroy_stacks (aTHX);	1100	destroy_coro (aTHX_ coro);
888		1101
889	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1102	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
890		1103
891	coro->mainstack = 0;	1104	coro->mainstack = 0;
892	}	1105	}
893		1106
894	cctx_destroy (coro->cctx);	1107	cctx_destroy (coro->cctx);
895	SvREFCNT_dec (coro->args);	1108	SvREFCNT_dec (coro->args);
896		1109
		1110	if (coro->next) coro->next->prev = coro->prev;
		1111	if (coro->prev) coro->prev->next = coro->next;
		1112	if (coro == coro_first) coro_first = coro->next;
		1113
897	return 1;	1114	return 1;
898	}	1115	}
899		1116
900	static int	1117	static int
901	coro_state_free (pTHX_ SV sv, MAGIC mg)	1118	coro_state_free (pTHX_ SV sv, MAGIC mg)
902	{	1119	{
903	struct coro coro = (struct coro )mg->mg_ptr;	1120	struct coro coro = (struct coro )mg->mg_ptr;
904	mg->mg_ptr = 0;	1121	mg->mg_ptr = 0;
		1122
		1123	coro->hv = 0;
905		1124
906	if (--coro->refcnt < 0)	1125	if (--coro->refcnt < 0)
907	{	1126	{
908	coro_state_destroy (aTHX_ coro);	1127	coro_state_destroy (aTHX_ coro);
909	Safefree (coro);	1128	Safefree (coro);
…		…
931	#else	1150	#else
932	# define MGf_DUP 0	1151	# define MGf_DUP 0
933	#endif	1152	#endif
934	};	1153	};
935		1154
936	static struct coro *
937	SvSTATE_ (pTHX_ SV *coro)
938	{
939	HV *stash;
940	MAGIC *mg;
941
942	if (SvROK (coro))
943	coro = SvRV (coro);
944
945	stash = SvSTASH (coro);
946	if (stash != coro_stash && stash != coro_state_stash)
947	{
948	/* very slow, but rare, check */
949	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
950	croak ("Coro::State object required");
951	}
952
953	mg = CORO_MAGIC (coro);
954	return (struct coro *)mg->mg_ptr;
955	}
956
957	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
958
959	static void	1155	static void
960	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1156	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
961	{	1157	{
962	ta->prev = SvSTATE (prev_sv);	1158	ta->prev = SvSTATE (prev_sv);
963	ta->next = SvSTATE (next_sv);	1159	ta->next = SvSTATE (next_sv);
		1160	TRANSFER_CHECK (*ta);
964	}	1161	}
965		1162
966	static void	1163	static void
967	api_transfer (SV prev_sv, SV next_sv)	1164	api_transfer (SV prev_sv, SV next_sv)
968	{	1165	{
969	dTHX;	1166	dTHX;
970	struct transfer_args ta;	1167	struct transfer_args ta;
971		1168
972	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1169	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
973	TRANSFER (ta);	1170	TRANSFER (ta);
974	}
975
976	static int
977	api_save (SV *coro_sv, int new_save)
978	{
979	dTHX;
980	struct coro *coro = SvSTATE (coro_sv);
981	int old_save = coro->save;
982
983	if (new_save >= 0)
984	coro->save = new_save;
985
986	return old_save;
987	}	1171	}
988		1172
989	/ Coro ******************************************************************/	1173	/ Coro ******************************************************************/
990		1174
991	static void	1175	static void
…		…
1085	break;	1269	break;
1086	}	1270	}
1087		1271
1088	/* free this only after the transfer */	1272	/* free this only after the transfer */
1089	prev_sv = SvRV (coro_current);	1273	prev_sv = SvRV (coro_current);
1090	SvRV_set (coro_current, next_sv);
1091	ta->prev = SvSTATE (prev_sv);	1274	ta->prev = SvSTATE (prev_sv);
1092		1275	TRANSFER_CHECK (*ta);
1093	assert (ta->next->flags & CF_READY);	1276	assert (ta->next->flags & CF_READY);
1094	ta->next->flags &= ~CF_READY;	1277	ta->next->flags &= ~CF_READY;
		1278	SvRV_set (coro_current, next_sv);
1095		1279
1096	LOCK;	1280	LOCK;
1097	free_coro_mortal (aTHX);	1281	free_coro_mortal (aTHX);
1098	coro_mortal = prev_sv;	1282	coro_mortal = prev_sv;
1099	UNLOCK;	1283	UNLOCK;
…		…
1160	}	1344	}
1161	else	1345	else
1162	return 0;	1346	return 0;
1163	}	1347	}
1164		1348
		1349	static void
		1350	api_trace (SV *coro_sv, int flags)
		1351	{
		1352	dTHX;
		1353	struct coro *coro = SvSTATE (coro_sv);
		1354
		1355	if (flags & CC_TRACE)
		1356	{
		1357	if (!coro->cctx)
		1358	coro->cctx = cctx_new ();
		1359	else if (!(coro->cctx->flags & CC_TRACE))
		1360	croak ("cannot enable tracing on coroutine with custom stack");
		1361
		1362	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1363	}
		1364	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1365	{
		1366	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1367
		1368	if (coro->flags & CF_RUNNING)
		1369	PL_runops = RUNOPS_DEFAULT;
		1370	else
		1371	coro->runops = RUNOPS_DEFAULT;
		1372	}
		1373	}
		1374
1165	MODULE = Coro::State PACKAGE = Coro::State	1375	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1166		1376
1167	PROTOTYPES: DISABLE	1377	PROTOTYPES: DISABLE
1168		1378
1169	BOOT:	1379	BOOT:
1170	{	1380	{
1171	#ifdef USE_ITHREADS	1381	#ifdef USE_ITHREADS
1172	MUTEX_INIT (&coro_mutex);	1382	MUTEX_INIT (&coro_mutex);
1173	#endif	1383	#endif
1174	BOOT_PAGESIZE;	1384	BOOT_PAGESIZE;
1175		1385
		1386	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1387
1176	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1388	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1177		1389
1178	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1390	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1179	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1391	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1180	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1181	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1182	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1183	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1392	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1184	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1393	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1185		1394
1186	main_mainstack = PL_mainstack;	1395	main_mainstack = PL_mainstack;
1187	main_top_env = PL_top_env;	1396	main_top_env = PL_top_env;
1188		1397
1189	while (main_top_env->je_prev)	1398	while (main_top_env->je_prev)
…		…
1202	struct coro *coro;	1411	struct coro *coro;
1203	HV *hv;	1412	HV *hv;
1204	int i;	1413	int i;
1205		1414
1206	Newz (0, coro, 1, struct coro);	1415	Newz (0, coro, 1, struct coro);
1207	coro->args = newAV ();	1416	coro->args = newAV ();
1208	coro->save = CORO_SAVE_DEF;
1209	coro->flags = CF_NEW;	1417	coro->flags = CF_NEW;
1210		1418
		1419	if (coro_first) coro_first->prev = coro;
		1420	coro->next = coro_first;
		1421	coro_first = coro;
		1422
1211	hv = newHV ();	1423	coro->hv = hv = newHV ();
1212	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1424	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1213	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1425	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1214		1426
1215	for (i = 1; i < items; i++)	1427	for (i = 1; i < items; i++)
1216	av_push (coro->args, newSVsv (ST (i)));	1428	av_push (coro->args, newSVsv (ST (i)));
1217	}	1429	}
1218	OUTPUT:	1430	OUTPUT:
1219	RETVAL	1431	RETVAL
1220		1432
1221	int	1433	# these not obviously related functions are all rolled into the same xs
1222	save (SV *coro, int new_save = -1)	1434	# function to increase chances that they all will call transfer with the same
1223	CODE:	1435	# stack offset
1224	RETVAL = api_save (coro, new_save);
1225	OUTPUT:
1226	RETVAL
1227
1228	int
1229	save_also (SV *coro_sv, int save_also)
1230	CODE:
1231	{
1232	struct coro *coro = SvSTATE (coro_sv);
1233	RETVAL = coro->save;
1234	coro->save \|= save_also;
1235	}
1236	OUTPUT:
1237	RETVAL
1238
1239	void	1436	void
1240	_set_stacklevel (...)	1437	_set_stacklevel (...)
1241	ALIAS:	1438	ALIAS:
1242	Coro::State::transfer = 1	1439	Coro::State::transfer = 1
1243	Coro::schedule = 2	1440	Coro::schedule = 2
…		…
1318	CODE:	1515	CODE:
1319	RETVAL = cctx_idle;	1516	RETVAL = cctx_idle;
1320	OUTPUT:	1517	OUTPUT:
1321	RETVAL	1518	RETVAL
1322		1519
		1520	void
		1521	list ()
		1522	PPCODE:
		1523	{
		1524	struct coro *coro;
		1525	for (coro = coro_first; coro; coro = coro->next)
		1526	if (coro->hv)
		1527	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1528	}
		1529
		1530	void
		1531	call (Coro::State coro, SV *coderef)
		1532	ALIAS:
		1533	eval = 1
		1534	CODE:
		1535	{
		1536	if (coro->mainstack)
		1537	{
		1538	struct coro temp;
		1539	Zero (&temp, 1, struct coro);
		1540
		1541	if (!(coro->flags & CF_RUNNING))
		1542	{
		1543	save_perl (aTHX_ &temp);
		1544	load_perl (aTHX_ coro);
		1545	}
		1546
		1547	{
		1548	dSP;
		1549	ENTER;
		1550	SAVETMPS;
		1551	PUSHMARK (SP);
		1552	PUTBACK;
		1553	if (ix)
		1554	eval_sv (coderef, 0);
		1555	else
		1556	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1557	SPAGAIN;
		1558	FREETMPS;
		1559	LEAVE;
		1560	PUTBACK;
		1561	}
		1562
		1563	if (!(coro->flags & CF_RUNNING))
		1564	{
		1565	save_perl (aTHX_ coro);
		1566	load_perl (aTHX_ &temp);
		1567	}
		1568	}
		1569	}
		1570
		1571	SV *
		1572	is_ready (Coro::State coro)
		1573	PROTOTYPE: $
		1574	ALIAS:
		1575	is_ready = CF_READY
		1576	is_running = CF_RUNNING
		1577	is_new = CF_NEW
		1578	is_destroyed = CF_DESTROYED
		1579	CODE:
		1580	RETVAL = boolSV (coro->flags & ix);
		1581	OUTPUT:
		1582	RETVAL
		1583
		1584	void
		1585	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1586
		1587	SV *
		1588	has_stack (Coro::State coro)
		1589	PROTOTYPE: $
		1590	CODE:
		1591	RETVAL = boolSV (!!coro->cctx);
		1592	OUTPUT:
		1593	RETVAL
		1594
		1595	int
		1596	is_traced (Coro::State coro)
		1597	PROTOTYPE: $
		1598	CODE:
		1599	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1600	OUTPUT:
		1601	RETVAL
		1602
		1603	IV
		1604	rss (Coro::State coro)
		1605	PROTOTYPE: $
		1606	ALIAS:
		1607	usecount = 1
		1608	CODE:
		1609	switch (ix)
		1610	{
		1611	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1612	case 1: RETVAL = coro->usecount; break;
		1613	}
		1614	OUTPUT:
		1615	RETVAL
		1616
		1617
1323	MODULE = Coro::State PACKAGE = Coro	1618	MODULE = Coro::State PACKAGE = Coro
1324		1619
1325	BOOT:	1620	BOOT:
1326	{	1621	{
1327	int i;	1622	int i;
		1623
		1624	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1625	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1626	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1627
		1628	coro_current = get_sv ("Coro::current", FALSE);
		1629	SvREADONLY_on (coro_current);
1328		1630
1329	coro_stash = gv_stashpv ("Coro", TRUE);	1631	coro_stash = gv_stashpv ("Coro", TRUE);
1330		1632
1331	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1633	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1332	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1634	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1333	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1635	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1334	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1636	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1335	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1637	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1336	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1638	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1337		1639
1338	coro_current = get_sv ("Coro::current", FALSE);
1339	SvREADONLY_on (coro_current);
1340
1341	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1640	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1342	coro_ready[i] = newAV ();	1641	coro_ready[i] = newAV ();
1343		1642
1344	{	1643	{
1345	SV *sv = perl_get_sv("Coro::API", 1);	1644	SV *sv = perl_get_sv("Coro::API", 1);
1346		1645
1347	coroapi.schedule = api_schedule;	1646	coroapi.schedule = api_schedule;
1348	coroapi.save = api_save;
1349	coroapi.cede = api_cede;	1647	coroapi.cede = api_cede;
1350	coroapi.cede_notself = api_cede_notself;	1648	coroapi.cede_notself = api_cede_notself;
1351	coroapi.ready = api_ready;	1649	coroapi.ready = api_ready;
1352	coroapi.is_ready = api_is_ready;	1650	coroapi.is_ready = api_is_ready;
1353	coroapi.nready = &coro_nready;	1651	coroapi.nready = &coro_nready;
…		…
1394	CODE:	1692	CODE:
1395	RETVAL = boolSV (api_ready (self));	1693	RETVAL = boolSV (api_ready (self));
1396	OUTPUT:	1694	OUTPUT:
1397	RETVAL	1695	RETVAL
1398		1696
1399	SV *
1400	is_ready (SV *self)
1401	PROTOTYPE: $
1402	CODE:
1403	RETVAL = boolSV (api_is_ready (self));
1404	OUTPUT:
1405	RETVAL
1406
1407	int	1697	int
1408	nready (...)	1698	nready (...)
1409	PROTOTYPE:	1699	PROTOTYPE:
1410	CODE:	1700	CODE:
1411	RETVAL = coro_nready;	1701	RETVAL = coro_nready;
1412	OUTPUT:	1702	OUTPUT:
1413	RETVAL	1703	RETVAL
1414		1704
		1705	# for async_pool speedup
		1706	void
		1707	_pool_1 (SV *cb)
		1708	CODE:
		1709	{
		1710	int i, len;
		1711	HV hv = (HV )SvRV (coro_current);
		1712	AV *defav = GvAV (PL_defgv);
		1713	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1714	AV *invoke_av;
		1715
		1716	if (!invoke)
		1717	croak ("\3terminate\2\n");
		1718
		1719	hv_store (hv, "desc", sizeof ("desc") - 1,
		1720	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1721
		1722	invoke_av = (AV *)SvRV (invoke);
		1723	len = av_len (invoke_av);
		1724
		1725	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1726
		1727	if (len > 0)
		1728	{
		1729	av_fill (defav, len - 1);
		1730	for (i = 0; i < len; ++i)
		1731	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1732	}
		1733
		1734	SvREFCNT_dec (invoke);
		1735	}
		1736
		1737	void
		1738	_pool_2 (SV *cb)
		1739	CODE:
		1740	{
		1741	struct coro *coro = SvSTATE (coro_current);
		1742
		1743	sv_setsv (cb, &PL_sv_undef);
		1744
		1745	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1746	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1747	croak ("\3terminate\2\n");
		1748
		1749	av_clear (GvAV (PL_defgv));
		1750	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1751	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1752
		1753	coro->prio = 0;
		1754
		1755	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1756	api_trace (coro_current, 0);
		1757
		1758	av_push (av_async_pool, newSVsv (coro_current));
		1759	}
		1760
		1761
1415	MODULE = Coro::State PACKAGE = Coro::AIO	1762	MODULE = Coro::State PACKAGE = Coro::AIO
1416		1763
1417	SV *	1764	SV *
1418	_get_state ()	1765	_get_state ()
1419	CODE:	1766	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.148 by root, Fri Apr 13 12:56:55 2007 UTC vs. Revision 1.178 by root, Wed Oct 3 01:48:06 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.148 by root, Fri Apr 13 12:56:55 2007 UTC vs.
Revision 1.178 by root, Wed Oct 3 01:48:06 2007 UTC