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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.179 by root, Wed Oct 3 16:03:17 2007 UTC

…		…
88	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
89	#ifndef CORO_PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
90	# define CORO_PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
91	#endif	91	#endif
92		92
93	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macros try to return the current stack pointer, in an as
94	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
95	* and should be unique. */
96	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
97	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
98		97
99	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
100		99
101	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
129	};	128	};
130		129
131	static size_t coro_stacksize = CORO_STACKSIZE;	130	static size_t coro_stacksize = CORO_STACKSIZE;
132	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
133	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
136		136
		137	static GV irsgv; / $/ */
		138
		139	/* async_pool helper stuff */
		140	static SV *sv_pool_rss;
		141	static SV *sv_pool_size;
		142	static AV *av_async_pool;
		143
137	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
138	static int cctx_count, cctx_idle;	145	static int cctx_count, cctx_idle;
		146
		147	enum {
		148	CC_MAPPED = 0x01,
		149	CC_NOREUSE = 0x02, /* throw this away after tracing */
		150	CC_TRACE = 0x04,
		151	CC_TRACE_SUB = 0x08, /* trace sub calls */
		152	CC_TRACE_LINE = 0x10, /* trace each statement */
		153	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		154	};
139		155
140	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	157	typedef struct coro_cctx {
142	struct coro_cctx *next;	158	struct coro_cctx *next;
143		159
…		…
152	coro_context cctx;	168	coro_context cctx;
153		169
154	#if CORO_USE_VALGRIND	170	#if CORO_USE_VALGRIND
155	int valgrind_id;	171	int valgrind_id;
156	#endif	172	#endif
157	char inuse, mapped;	173	unsigned char flags;
158	} coro_cctx;	174	} coro_cctx;
159		175
160	enum {	176	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
…		…
170	coro_cctx *cctx;	186	coro_cctx *cctx;
171		187
172	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
173	AV *args;	189	AV *args;
174	int refcnt;	190	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
177		192
178	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
179	AV defav; / @_ */	194	AV defav; / @_ */
180	SV defsv; / $_ */	195	SV defsv; / $_ */
181	SV errsv; / $@ */	196	SV errsv; / $@ */
		197	IO deffh; / default filehandle */
182	SV irssv; / $/ */	198	SV irssv; / $/ */
183	SV irssv_sv; / real $/ cache */	199	SV irssv_sv; / real $/ cache */
184		200
185	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
186	# include "state.h"	202	# include "state.h"
187	#undef VAR	203	#undef VAR
188		204
		205	/* statistics */
		206	int usecount; /* number of switches to this coro */
		207
189	/* coro process data */	208	/* coro process data */
190	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 */
191	};	214	};
192		215
193	typedef struct coro *Coro__State;	216	typedef struct coro *Coro__State;
194	typedef struct coro *Coro__State_or_hashref;	217	typedef struct coro *Coro__State_or_hashref;
195		218
…		…
204		227
205	/* for Coro.pm */	228	/* for Coro.pm */
206	static SV *coro_current;	229	static SV *coro_current;
207	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	230	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
208	static int coro_nready;	231	static int coro_nready;
		232	static struct coro *coro_first;
209		233
210	/ lowlevel stuff ********************************************************/	234	/ lowlevel stuff ********************************************************/
211		235
212	static AV *	236	static AV *
213	coro_clone_padlist (pTHX_ CV *cv)	237	coro_clone_padlist (pTHX_ CV *cv)
…		…
278	SvMAGIC (cv) \	302	SvMAGIC (cv) \
279	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	303	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
280	? SvMAGIC (cv) \	304	? SvMAGIC (cv) \
281	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	305	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
282	: 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))
283		333
284	/* the next two functions merely cache the padlists */	334	/* the next two functions merely cache the padlists */
285	static void	335	static void
286	get_padlist (pTHX_ CV *cv)	336	get_padlist (pTHX_ CV *cv)
287	{	337	{
…		…
326	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	376	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
327	}	377	}
328		378
329	/ load & save, init *****************************************************/	379	/ load & save, init *****************************************************/
330		380
331	#define SB do {
332	#define SE } while (0)
333
334	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
335
336	static void	381	static void
337	load_perl (pTHX_ Coro__State c)	382	load_perl (pTHX_ Coro__State c)
338	{	383	{
339	#define VAR(name,type) PL_ ## name = c->name;	384	#define VAR(name,type) PL_ ## name = c->name;
340	# include "state.h"	385	# include "state.h"
341	#undef VAR	386	#undef VAR
342		387
343	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	388	GvSV (PL_defgv) = c->defsv;
344	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	389	GvAV (PL_defgv) = c->defav;
345	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	390	GvSV (PL_errgv) = c->errsv;
346	if (c->irssv)	391	GvIOp(PL_defoutgv) = c->deffh;
347	{	392	PL_rs = c->irssv;
348	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	393	GvSV (irsgv) = c->irssv_sv;
349	SvREFCNT_dec (c->irssv);
350	else
351	{
352	REPLACE_SV (PL_rs, c->irssv);
353	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
354	sv_setsv (c->irssv_sv, PL_rs);
355	}
356	}
357		394
358	{	395	{
359	dSP;	396	dSP;
360	CV *cv;	397	CV *cv;
361		398
…		…
367	CvPADLIST (cv) = (AV *)POPs;	404	CvPADLIST (cv) = (AV *)POPs;
368	}	405	}
369		406
370	PUTBACK;	407	PUTBACK;
371	}	408	}
372	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
373	}	409	}
374		410
375	static void	411	static void
376	save_perl (pTHX_ Coro__State c)	412	save_perl (pTHX_ Coro__State c)
377	{	413	{
378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
379	{	414	{
380	dSP;	415	dSP;
381	I32 cxix = cxstack_ix;	416	I32 cxix = cxstack_ix;
382	PERL_CONTEXT *ccstk = cxstack;	417	PERL_CONTEXT *ccstk = cxstack;
383	PERL_SI *top_si = PL_curstackinfo;	418	PERL_SI *top_si = PL_curstackinfo;
…		…
385	/*	420	/*
386	* 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
387	* (and reinitialize) all cv's in the whole callchain :(	422	* (and reinitialize) all cv's in the whole callchain :(
388	*/	423	*/
389		424
390	EXTEND (SP, 3 + 1);
391	PUSHs (Nullsv);	425	XPUSHs (Nullsv);
392	/* this loop was inspired by pp_caller */	426	/* this loop was inspired by pp_caller */
393	for (;;)	427	for (;;)
394	{	428	{
395	while (cxix >= 0)	429	while (cxix >= 0)
396	{	430	{
397	PERL_CONTEXT *cx = &ccstk[cxix--];	431	PERL_CONTEXT *cx = &ccstk[cxix--];
398		432
399	if (CxTYPE (cx) == CXt_SUB)	433	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
400	{	434	{
401	CV *cv = cx->blk_sub.cv;	435	CV *cv = cx->blk_sub.cv;
402		436
403	if (CvDEPTH (cv))	437	if (CvDEPTH (cv))
404	{	438	{
…		…
415		449
416	if (top_si->si_type == PERLSI_MAIN)	450	if (top_si->si_type == PERLSI_MAIN)
417	break;	451	break;
418		452
419	top_si = top_si->si_prev;	453	top_si = top_si->si_prev;
420	ccstk = top_si->si_cxstack;	454	ccstk = top_si->si_cxstack;
421	cxix = top_si->si_cxix;	455	cxix = top_si->si_cxix;
422	}	456	}
423		457
424	PUTBACK;	458	PUTBACK;
425	}	459	}
426		460
427	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	461	c->defav = GvAV (PL_defgv);
428	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	462	c->defsv = DEFSV;
429	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	463	c->errsv = ERRSV;
430	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	464	c->deffh = GvIOp (PL_defoutgv);
		465	c->irssv = PL_rs;
		466	c->irssv_sv = GvSV (irsgv);
431		467
432	#define VAR(name,type)c->name = PL_ ## name;	468	#define VAR(name,type)c->name = PL_ ## name;
433	# include "state.h"	469	# include "state.h"
434	#undef VAR	470	#undef VAR
435	}	471	}
…		…
444	# define coro_init_stacks init_stacks	480	# define coro_init_stacks init_stacks
445	#else	481	#else
446	static void	482	static void
447	coro_init_stacks (pTHX)	483	coro_init_stacks (pTHX)
448	{	484	{
449	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	485	PL_curstackinfo = new_stackinfo(64, 6);
450	PL_curstackinfo->si_type = PERLSI_MAIN;	486	PL_curstackinfo->si_type = PERLSI_MAIN;
451	PL_curstack = PL_curstackinfo->si_stack;	487	PL_curstack = PL_curstackinfo->si_stack;
452	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
453		489
454	PL_stack_base = AvARRAY(PL_curstack);	490	PL_stack_base = AvARRAY(PL_curstack);
455	PL_stack_sp = PL_stack_base;	491	PL_stack_sp = PL_stack_base;
456	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
457		493
458	New(50,PL_tmps_stack,128,SV*);	494	New(50,PL_tmps_stack,64,SV*);
459	PL_tmps_floor = -1;	495	PL_tmps_floor = -1;
460	PL_tmps_ix = -1;	496	PL_tmps_ix = -1;
461	PL_tmps_max = 128;	497	PL_tmps_max = 64;
462		498
463	New(54,PL_markstack,32,I32);	499	New(54,PL_markstack,16,I32);
464	PL_markstack_ptr = PL_markstack;	500	PL_markstack_ptr = PL_markstack;
465	PL_markstack_max = PL_markstack + 32;	501	PL_markstack_max = PL_markstack + 16;
466		502
467	#ifdef SET_MARK_OFFSET	503	#ifdef SET_MARK_OFFSET
468	SET_MARK_OFFSET;	504	SET_MARK_OFFSET;
469	#endif	505	#endif
470		506
471	New(54,PL_scopestack,32,I32);	507	New(54,PL_scopestack,16,I32);
472	PL_scopestack_ix = 0;	508	PL_scopestack_ix = 0;
473	PL_scopestack_max = 32;	509	PL_scopestack_max = 16;
474		510
475	New(54,PL_savestack,64,ANY);	511	New(54,PL_savestack,64,ANY);
476	PL_savestack_ix = 0;	512	PL_savestack_ix = 0;
477	PL_savestack_max = 64;	513	PL_savestack_max = 64;
478		514
479	#if !PERL_VERSION_ATLEAST (5,9,0)	515	#if !PERL_VERSION_ATLEAST (5,9,0)
480	New(54,PL_retstack,16,OP*);	516	New(54,PL_retstack,4,OP*);
481	PL_retstack_ix = 0;	517	PL_retstack_ix = 0;
482	PL_retstack_max = 16;	518	PL_retstack_max = 4;
483	#endif	519	#endif
484	}	520	}
485	#endif	521	#endif
486		522
487	/*	523	/*
488	* destroy the stacks, the callchain etc...	524	* destroy the stacks, the callchain etc...
489	*/	525	*/
490	static void	526	static void
491	coro_destroy_stacks (pTHX)	527	coro_destroy_stacks (pTHX)
492	{	528	{
493	if (!IN_DESTRUCT)
494	{
495	/* restore all saved variables and stuff */
496	LEAVE_SCOPE (0);
497	assert (PL_tmps_floor == -1);
498
499	/* free all temporaries */
500	FREETMPS;
501	assert (PL_tmps_ix == -1);
502
503	/* unwind all extra stacks */
504	POPSTACK_TO (PL_mainstack);
505
506	/* unwind main stack */
507	dounwind (-1);
508	}
509
510	while (PL_curstackinfo->si_next)	529	while (PL_curstackinfo->si_next)
511	PL_curstackinfo = PL_curstackinfo->si_next;	530	PL_curstackinfo = PL_curstackinfo->si_next;
512		531
513	while (PL_curstackinfo)	532	while (PL_curstackinfo)
514	{	533	{
…		…
529	#if !PERL_VERSION_ATLEAST (5,9,0)	548	#if !PERL_VERSION_ATLEAST (5,9,0)
530	Safefree (PL_retstack);	549	Safefree (PL_retstack);
531	#endif	550	#endif
532	}	551	}
533		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
534	/ coroutine stack handling **********************************************/	584	/ coroutine stack handling **********************************************/
535		585
536	static void	586	static void
537	setup_coro (pTHX_ struct coro *coro)	587	coro_setup (pTHX_ struct coro *coro)
538	{	588	{
539	/*	589	/*
540	* emulate part of the perl startup here.	590	* emulate part of the perl startup here.
541	*/	591	*/
542	coro_init_stacks (aTHX);	592	coro_init_stacks (aTHX);
543		593
		594	PL_runops = RUNOPS_DEFAULT;
544	PL_curcop = &PL_compiling;	595	PL_curcop = &PL_compiling;
545	PL_in_eval = EVAL_NULL;	596	PL_in_eval = EVAL_NULL;
546	PL_comppad = 0;	597	PL_comppad = 0;
547	PL_curpm = 0;	598	PL_curpm = 0;
548	PL_localizing = 0;	599	PL_localizing = 0;
549	PL_dirty = 0;	600	PL_dirty = 0;
550	PL_restartop = 0;	601	PL_restartop = 0;
		602
		603	GvSV (PL_defgv) = NEWSV (0, 0);
		604	GvAV (PL_defgv) = coro->args; coro->args = 0;
		605	GvSV (PL_errgv) = NEWSV (0, 0);
		606	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), irsgv, PERL_MAGIC_sv, "/", 1);
		607	PL_rs = newSVsv (GvSV (irsgv));
		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	}
551		616
552	{	617	{
553	dSP;	618	dSP;
554	LOGOP myop;	619	LOGOP myop;
555		620
556	SvREFCNT_dec (GvAV (PL_defgv));
557	GvAV (PL_defgv) = coro->args; coro->args = 0;
558
559	Zero (&myop, 1, LOGOP);	621	Zero (&myop, 1, LOGOP);
560	myop.op_next = Nullop;	622	myop.op_next = Nullop;
561	myop.op_flags = OPf_WANT_VOID;	623	myop.op_flags = OPf_WANT_VOID;
562		624
563	PUSHMARK (SP);	625	PUSHMARK (SP);
564	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	626	XPUSHs (av_shift (GvAV (PL_defgv)));
565	PUTBACK;	627	PUTBACK;
566	PL_op = (OP *)&myop;	628	PL_op = (OP *)&myop;
567	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	629	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568	SPAGAIN;	630	SPAGAIN;
569	}	631	}
570		632
571	ENTER; /* necessary e.g. for dounwind */	633	ENTER; /* necessary e.g. for dounwind */
572	}	634	}
573		635
574	static void	636	static void
		637	coro_destroy (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
575	free_coro_mortal (pTHX)	667	free_coro_mortal (pTHX)
576	{	668	{
577	if (coro_mortal)	669	if (coro_mortal)
578	{	670	{
579	SvREFCNT_dec (coro_mortal);	671	SvREFCNT_dec (coro_mortal);
580	coro_mortal = 0;	672	coro_mortal = 0;
581	}	673	}
582	}	674	}
583		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
584	/* 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 */
		800	/* _cctx_init should be careful, as it could be called at almost any time */
		801	/* during execution of a perl program */
585	static void NOINLINE	802	static void NOINLINE
586	prepare_cctx (pTHX_ coro_cctx *cctx)	803	prepare_cctx (pTHX_ coro_cctx *cctx)
587	{	804	{
588	dSP;	805	dSP;
589	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;
590		812
591	Zero (&myop, 1, LOGOP);	813	Zero (&myop, 1, LOGOP);
592	myop.op_next = PL_op;	814	myop.op_next = PL_op;
593	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	815	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
594		816
…		…
600	PL_op = (OP *)&myop;	822	PL_op = (OP *)&myop;
601	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	823	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
602	SPAGAIN;	824	SPAGAIN;
603	}	825	}
604		826
		827	/*
		828	* this is a _very_ stripped down perl interpreter ;)
		829	*/
605	static void	830	static void
606	coro_run (void *arg)	831	coro_run (void *arg)
607	{	832	{
608	dTHX;	833	dTHX;
609		834
610	/* coro_run is the alternative tail of transfer(), so unlock here. */	835	/* coro_run is the alternative tail of transfer(), so unlock here. */
611	UNLOCK;	836	UNLOCK;
612		837
613	/*	838	/* we now skip the entersub that lead to transfer() */
614	* this is a _very_ stripped down perl interpreter ;)	839	PL_op = PL_op->op_next;
615	*/
616	PL_top_env = &PL_start_env;
617		840
618	/* inject call to cctx_init */	841	/* inject a fake subroutine call to cctx_init */
619	prepare_cctx (aTHX_ (coro_cctx *)arg);	842	prepare_cctx (aTHX_ (coro_cctx *)arg);
620		843
621	/* somebody will hit me for both perl_run and PL_restartop */	844	/* somebody or something will hit me for both perl_run and PL_restartop */
622	PL_restartop = PL_op;	845	PL_restartop = PL_op;
623	perl_run (PL_curinterp);	846	perl_run (PL_curinterp);
624		847
625	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	848	/*
626	abort ();	849	* If perl-run returns we assume exit() was being called or the coro
		850	* fell off the end, which seems to be the only valid (non-bug)
		851	* reason for perl_run to return. We try to exit by jumping to the
		852	* bootstrap-time "top" top_env, as we cannot restore the "main"
		853	* coroutine as Coro has no such concept
		854	*/
		855	PL_top_env = main_top_env;
		856	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
627	}	857	}
628		858
629	static coro_cctx *	859	static coro_cctx *
630	cctx_new ()	860	cctx_new ()
631	{	861	{
…		…
648	# if CORO_STACKGUARD	878	# if CORO_STACKGUARD
649	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	879	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
650	# endif	880	# endif
651	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	881	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
652	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	882	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
653	cctx->mapped = 1;	883	cctx->flags \|= CC_MAPPED;
654	}	884	}
655	else	885	else
656	#endif	886	#endif
657	{	887	{
658	cctx->ssize = coro_stacksize * (long)sizeof (long);	888	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
685	#if CORO_USE_VALGRIND	915	#if CORO_USE_VALGRIND
686	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	916	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
687	#endif	917	#endif
688		918
689	#if HAVE_MMAP	919	#if HAVE_MMAP
690	if (cctx->mapped)	920	if (cctx->flags & CC_MAPPED)
691	munmap (cctx->sptr, cctx->ssize);	921	munmap (cctx->sptr, cctx->ssize);
692	else	922	else
693	#endif	923	#endif
694	Safefree (cctx->sptr);	924	Safefree (cctx->sptr);
695		925
…		…
703	{	933	{
704	coro_cctx *cctx = cctx_first;	934	coro_cctx *cctx = cctx_first;
705	cctx_first = cctx->next;	935	cctx_first = cctx->next;
706	--cctx_idle;	936	--cctx_idle;
707		937
708	if (cctx->ssize >= coro_stacksize)	938	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
709	return cctx;	939	return cctx;
710		940
711	cctx_destroy (cctx);	941	cctx_destroy (cctx);
712	}	942	}
713		943
714	PL_op = PL_op->op_next;
715	return cctx_new ();	944	return cctx_new ();
716	}	945	}
717		946
718	static void	947	static void
719	cctx_put (coro_cctx *cctx)	948	cctx_put (coro_cctx *cctx)
…		…
723	{	952	{
724	coro_cctx *first = cctx_first;	953	coro_cctx *first = cctx_first;
725	cctx_first = first->next;	954	cctx_first = first->next;
726	--cctx_idle;	955	--cctx_idle;
727		956
728	assert (!first->inuse);
729	cctx_destroy (first);	957	cctx_destroy (first);
730	}	958	}
731		959
732	++cctx_idle;	960	++cctx_idle;
733	cctx->next = cctx_first;	961	cctx->next = cctx_first;
734	cctx_first = cctx;	962	cctx_first = cctx;
735	}	963	}
736		964
737	/ coroutine switching ***************************************************/	965	/ coroutine switching ***************************************************/
738		966
739	/* 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 */
740	static void NOINLINE	987	static void NOINLINE
741	transfer (pTHX_ struct coro prev, struct coro next)	988	transfer (pTHX_ struct coro prev, struct coro next)
742	{	989	{
743	dSTACKLEVEL;	990	dSTACKLEVEL;
744		991
…		…
754		1001
755	if (prev->flags & CF_NEW)	1002	if (prev->flags & CF_NEW)
756	{	1003	{
757	/* create a new empty context */	1004	/* create a new empty context */
758	Newz (0, prev->cctx, 1, coro_cctx);	1005	Newz (0, prev->cctx, 1, coro_cctx);
759	prev->cctx->inuse = 1;
760	prev->flags &= ~CF_NEW;	1006	prev->flags &= ~CF_NEW;
761	prev->flags \|= CF_RUNNING;	1007	prev->flags \|= CF_RUNNING;
762	}	1008	}
763
764	/TODO: must not croak here /
765	if (!prev->flags & CF_RUNNING)
766	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
767
768	if (next->flags & CF_RUNNING)
769	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
770
771	if (next->flags & CF_DESTROYED)
772	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
773		1009
774	prev->flags &= ~CF_RUNNING;	1010	prev->flags &= ~CF_RUNNING;
775	next->flags \|= CF_RUNNING;	1011	next->flags \|= CF_RUNNING;
776		1012
777	LOCK;	1013	LOCK;
…		…
781	/* need to start coroutine */	1017	/* need to start coroutine */
782	next->flags &= ~CF_NEW;	1018	next->flags &= ~CF_NEW;
783	/* first get rid of the old state */	1019	/* first get rid of the old state */
784	save_perl (aTHX_ prev);	1020	save_perl (aTHX_ prev);
785	/* setup coroutine call */	1021	/* setup coroutine call */
786	setup_coro (aTHX_ next);	1022	coro_setup (aTHX_ next);
787	/* need a new stack */
788	assert (!next->cctx);
789	}	1023	}
790	else	1024	else
791	{	1025	{
792	/* coroutine already started */	1026	/* coroutine already started */
793	save_perl (aTHX_ prev);	1027	save_perl (aTHX_ prev);
…		…
795	}	1029	}
796		1030
797	prev__cctx = prev->cctx;	1031	prev__cctx = prev->cctx;
798		1032
799	/* possibly "free" the cctx */	1033	/* possibly "free" the cctx */
800	if (prev__cctx->idle_sp == STACKLEVEL)	1034	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
801	{	1035	{
802	/* 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 */
803	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));
804		1038
805	prev->cctx = 0;	1039	prev->cctx = 0;
806		1040
807	cctx_put (prev__cctx);	1041	cctx_put (prev__cctx);
808	prev__cctx->inuse = 0;
809	}	1042	}
810		1043
		1044	++next->usecount;
		1045
811	if (!next->cctx)	1046	if (!next->cctx)
812	{
813	next->cctx = cctx_get (aTHX);	1047	next->cctx = cctx_get (aTHX);
814	assert (!next->cctx->inuse);
815	next->cctx->inuse = 1;
816	}
817		1048
818	if (prev__cctx != next->cctx)	1049	if (prev__cctx != next->cctx)
819	{	1050	{
820	prev__cctx->top_env = PL_top_env;	1051	prev__cctx->top_env = PL_top_env;
821	PL_top_env = next->cctx->top_env;	1052	PL_top_env = next->cctx->top_env;
…		…
831	{	1062	{
832	struct coro prev, next;	1063	struct coro prev, next;
833	};	1064	};
834		1065
835	#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)
836		1068
837	/ high level stuff ******************************************************/	1069	/ high level stuff ******************************************************/
838		1070
839	static int	1071	static int
840	coro_state_destroy (pTHX_ struct coro *coro)	1072	coro_state_destroy (pTHX_ struct coro *coro)
…		…
857		1089
858	if (coro->mainstack && coro->mainstack != main_mainstack)	1090	if (coro->mainstack && coro->mainstack != main_mainstack)
859	{	1091	{
860	struct coro temp;	1092	struct coro temp;
861		1093
862	assert (!(coro->flags & CF_RUNNING));
863
864	Zero (&temp, 1, struct coro);
865	temp.save = CORO_SAVE_ALL;
866
867	if (coro->flags & CF_RUNNING)	1094	if (coro->flags & CF_RUNNING)
868	croak ("FATAL: tried to destroy currently running coroutine");	1095	croak ("FATAL: tried to destroy currently running coroutine");
869		1096
870	save_perl (aTHX_ &temp);	1097	save_perl (aTHX_ &temp);
871	load_perl (aTHX_ coro);	1098	load_perl (aTHX_ coro);
872		1099
873	coro_destroy_stacks (aTHX);	1100	coro_destroy (aTHX_ coro);
874		1101
875	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1102	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
876		1103
877	coro->mainstack = 0;	1104	coro->mainstack = 0;
878	}	1105	}
879		1106
880	cctx_destroy (coro->cctx);	1107	cctx_destroy (coro->cctx);
881	SvREFCNT_dec (coro->args);	1108	SvREFCNT_dec (coro->args);
882		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
883	return 1;	1114	return 1;
884	}	1115	}
885		1116
886	static int	1117	static int
887	coro_state_free (pTHX_ SV sv, MAGIC mg)	1118	coro_state_free (pTHX_ SV sv, MAGIC mg)
888	{	1119	{
889	struct coro coro = (struct coro )mg->mg_ptr;	1120	struct coro coro = (struct coro )mg->mg_ptr;
890	mg->mg_ptr = 0;	1121	mg->mg_ptr = 0;
		1122
		1123	coro->hv = 0;
891		1124
892	if (--coro->refcnt < 0)	1125	if (--coro->refcnt < 0)
893	{	1126	{
894	coro_state_destroy (aTHX_ coro);	1127	coro_state_destroy (aTHX_ coro);
895	Safefree (coro);	1128	Safefree (coro);
…		…
917	#else	1150	#else
918	# define MGf_DUP 0	1151	# define MGf_DUP 0
919	#endif	1152	#endif
920	};	1153	};
921		1154
922	static struct coro *
923	SvSTATE_ (pTHX_ SV *coro)
924	{
925	HV *stash;
926	MAGIC *mg;
927
928	if (SvROK (coro))
929	coro = SvRV (coro);
930
931	stash = SvSTASH (coro);
932	if (stash != coro_stash && stash != coro_state_stash)
933	{
934	/* very slow, but rare, check */
935	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
936	croak ("Coro::State object required");
937	}
938
939	mg = CORO_MAGIC (coro);
940	return (struct coro *)mg->mg_ptr;
941	}
942
943	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
944
945	static void	1155	static void
946	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)
947	{	1157	{
948	ta->prev = SvSTATE (prev_sv);	1158	ta->prev = SvSTATE (prev_sv);
949	ta->next = SvSTATE (next_sv);	1159	ta->next = SvSTATE (next_sv);
		1160	TRANSFER_CHECK (*ta);
950	}	1161	}
951		1162
952	static void	1163	static void
953	api_transfer (SV prev_sv, SV next_sv)	1164	api_transfer (SV prev_sv, SV next_sv)
954	{	1165	{
955	dTHX;	1166	dTHX;
956	struct transfer_args ta;	1167	struct transfer_args ta;
957		1168
958	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1169	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
959	TRANSFER (ta);	1170	TRANSFER (ta);
960	}
961
962	static int
963	api_save (SV *coro_sv, int new_save)
964	{
965	dTHX;
966	struct coro *coro = SvSTATE (coro_sv);
967	int old_save = coro->save;
968
969	if (new_save >= 0)
970	coro->save = new_save;
971
972	return old_save;
973	}	1171	}
974		1172
975	/ Coro ******************************************************************/	1173	/ Coro ******************************************************************/
976		1174
977	static void	1175	static void
…		…
1071	break;	1269	break;
1072	}	1270	}
1073		1271
1074	/* free this only after the transfer */	1272	/* free this only after the transfer */
1075	prev_sv = SvRV (coro_current);	1273	prev_sv = SvRV (coro_current);
1076	SvRV_set (coro_current, next_sv);
1077	ta->prev = SvSTATE (prev_sv);	1274	ta->prev = SvSTATE (prev_sv);
1078		1275	TRANSFER_CHECK (*ta);
1079	assert (ta->next->flags & CF_READY);	1276	assert (ta->next->flags & CF_READY);
1080	ta->next->flags &= ~CF_READY;	1277	ta->next->flags &= ~CF_READY;
		1278	SvRV_set (coro_current, next_sv);
1081		1279
1082	LOCK;	1280	LOCK;
1083	free_coro_mortal (aTHX);	1281	free_coro_mortal (aTHX);
1084	coro_mortal = prev_sv;	1282	coro_mortal = prev_sv;
1085	UNLOCK;	1283	UNLOCK;
…		…
1146	}	1344	}
1147	else	1345	else
1148	return 0;	1346	return 0;
1149	}	1347	}
1150		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
1151	MODULE = Coro::State PACKAGE = Coro::State	1375	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1152		1376
1153	PROTOTYPES: DISABLE	1377	PROTOTYPES: DISABLE
1154		1378
1155	BOOT:	1379	BOOT:
1156	{	1380	{
1157	#ifdef USE_ITHREADS	1381	#ifdef USE_ITHREADS
1158	MUTEX_INIT (&coro_mutex);	1382	MUTEX_INIT (&coro_mutex);
1159	#endif	1383	#endif
1160	BOOT_PAGESIZE;	1384	BOOT_PAGESIZE;
1161		1385
		1386	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1387
1162	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1388	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1163		1389
		1390	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1391	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1164	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1392	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1165	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1166	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1167	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1168	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1393	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1169		1394
1170	main_mainstack = PL_mainstack;	1395	main_mainstack = PL_mainstack;
		1396	main_top_env = PL_top_env;
		1397
		1398	while (main_top_env->je_prev)
		1399	main_top_env = main_top_env->je_prev;
1171		1400
1172	coroapi.ver = CORO_API_VERSION;	1401	coroapi.ver = CORO_API_VERSION;
1173	coroapi.transfer = api_transfer;	1402	coroapi.transfer = api_transfer;
1174		1403
1175	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1404	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1182	struct coro *coro;	1411	struct coro *coro;
1183	HV *hv;	1412	HV *hv;
1184	int i;	1413	int i;
1185		1414
1186	Newz (0, coro, 1, struct coro);	1415	Newz (0, coro, 1, struct coro);
1187	coro->args = newAV ();	1416	coro->args = newAV ();
1188	coro->save = CORO_SAVE_ALL;
1189	coro->flags = CF_NEW;	1417	coro->flags = CF_NEW;
1190		1418
		1419	if (coro_first) coro_first->prev = coro;
		1420	coro->next = coro_first;
		1421	coro_first = coro;
		1422
1191	hv = newHV ();	1423	coro->hv = hv = newHV ();
1192	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;
1193	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1425	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1194		1426
1195	for (i = 1; i < items; i++)	1427	for (i = 1; i < items; i++)
1196	av_push (coro->args, newSVsv (ST (i)));	1428	av_push (coro->args, newSVsv (ST (i)));
1197	}	1429	}
1198	OUTPUT:	1430	OUTPUT:
1199	RETVAL	1431	RETVAL
1200		1432
1201	int	1433	# these not obviously related functions are all rolled into the same xs
1202	save (SV *coro, int new_save = -1)	1434	# function to increase chances that they all will call transfer with the same
1203	CODE:	1435	# stack offset
1204	RETVAL = api_save (coro, new_save);
1205	OUTPUT:
1206	RETVAL
1207
1208	void	1436	void
1209	_set_stacklevel (...)	1437	_set_stacklevel (...)
1210	ALIAS:	1438	ALIAS:
1211	Coro::State::transfer = 1	1439	Coro::State::transfer = 1
1212	Coro::schedule = 2	1440	Coro::schedule = 2
…		…
1287	CODE:	1515	CODE:
1288	RETVAL = cctx_idle;	1516	RETVAL = cctx_idle;
1289	OUTPUT:	1517	OUTPUT:
1290	RETVAL	1518	RETVAL
1291		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
1292	MODULE = Coro::State PACKAGE = Coro	1618	MODULE = Coro::State PACKAGE = Coro
1293		1619
1294	BOOT:	1620	BOOT:
1295	{	1621	{
1296	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);
1297		1630
1298	coro_stash = gv_stashpv ("Coro", TRUE);	1631	coro_stash = gv_stashpv ("Coro", TRUE);
1299		1632
1300	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1633	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1301	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1634	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1302	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1635	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1303	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1636	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1304	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1637	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1305	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1638	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1306		1639
1307	coro_current = get_sv ("Coro::current", FALSE);
1308	SvREADONLY_on (coro_current);
1309
1310	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1640	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1311	coro_ready[i] = newAV ();	1641	coro_ready[i] = newAV ();
1312		1642
1313	{	1643	{
1314	SV *sv = perl_get_sv("Coro::API", 1);	1644	SV *sv = perl_get_sv("Coro::API", 1);
1315		1645
1316	coroapi.schedule = api_schedule;	1646	coroapi.schedule = api_schedule;
1317	coroapi.save = api_save;
1318	coroapi.cede = api_cede;	1647	coroapi.cede = api_cede;
1319	coroapi.cede_notself = api_cede_notself;	1648	coroapi.cede_notself = api_cede_notself;
1320	coroapi.ready = api_ready;	1649	coroapi.ready = api_ready;
1321	coroapi.is_ready = api_is_ready;	1650	coroapi.is_ready = api_is_ready;
1322	coroapi.nready = &coro_nready;	1651	coroapi.nready = &coro_nready;
…		…
1363	CODE:	1692	CODE:
1364	RETVAL = boolSV (api_ready (self));	1693	RETVAL = boolSV (api_ready (self));
1365	OUTPUT:	1694	OUTPUT:
1366	RETVAL	1695	RETVAL
1367		1696
1368	SV *
1369	is_ready (SV *self)
1370	PROTOTYPE: $
1371	CODE:
1372	RETVAL = boolSV (api_is_ready (self));
1373	OUTPUT:
1374	RETVAL
1375
1376	int	1697	int
1377	nready (...)	1698	nready (...)
1378	PROTOTYPE:	1699	PROTOTYPE:
1379	CODE:	1700	CODE:
1380	RETVAL = coro_nready;	1701	RETVAL = coro_nready;
1381	OUTPUT:	1702	OUTPUT:
1382	RETVAL	1703	RETVAL
1383		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
1384	MODULE = Coro::State PACKAGE = Coro::AIO	1762	MODULE = Coro::State PACKAGE = Coro::AIO
1385		1763
1386	SV *	1764	SV *
1387	_get_state ()	1765	_get_state ()
1388	CODE:	1766	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs. Revision 1.179 by root, Wed Oct 3 16:03:17 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.179 by root, Wed Oct 3 16:03:17 2007 UTC