[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 1.183 by root, Wed Oct 3 19:19:06 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; / $_ */
…		…
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 transfers to this coro */
		207
191	/* coro process data */	208	/* coro process data */
192	int prio;	209	int prio;
		210	//SV *throw;
		211
		212	/* async_pool */
		213	GV *asp_deffh;
		214
		215	/* linked list */
		216	struct coro next, prev;
		217	HV hv; / the perl hash associated with this coro, if any */
193	};	218	};
194		219
195	typedef struct coro *Coro__State;	220	typedef struct coro *Coro__State;
196	typedef struct coro *Coro__State_or_hashref;	221	typedef struct coro *Coro__State_or_hashref;
197		222
…		…
206		231
207	/* for Coro.pm */	232	/* for Coro.pm */
208	static SV *coro_current;	233	static SV *coro_current;
209	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
210	static int coro_nready;	235	static int coro_nready;
		236	static struct coro *coro_first;
211		237
212	/ lowlevel stuff ********************************************************/	238	/ lowlevel stuff ********************************************************/
213		239
214	static AV *	240	static AV *
215	coro_clone_padlist (pTHX_ CV *cv)	241	coro_clone_padlist (pTHX_ CV *cv)
…		…
280	SvMAGIC (cv) \	306	SvMAGIC (cv) \
281	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
282	? SvMAGIC (cv) \	308	? SvMAGIC (cv) \
283	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
284	: 0	310	: 0
		311
		312	static struct coro *
		313	SvSTATE_ (pTHX_ SV *coro)
		314	{
		315	HV *stash;
		316	MAGIC *mg;
		317
		318	if (SvROK (coro))
		319	coro = SvRV (coro);
		320
		321	if (SvTYPE (coro) != SVt_PVHV)
		322	croak ("Coro::State object required");
		323
		324	stash = SvSTASH (coro);
		325	if (stash != coro_stash && stash != coro_state_stash)
		326	{
		327	/* very slow, but rare, check */
		328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		329	croak ("Coro::State object required");
		330	}
		331
		332	mg = CORO_MAGIC (coro);
		333	return (struct coro *)mg->mg_ptr;
		334	}
		335
		336	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
285		337
286	/* the next two functions merely cache the padlists */	338	/* the next two functions merely cache the padlists */
287	static void	339	static void
288	get_padlist (pTHX_ CV *cv)	340	get_padlist (pTHX_ CV *cv)
289	{	341	{
…		…
328	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
329	}	381	}
330		382
331	/ load & save, init *****************************************************/	383	/ load & save, init *****************************************************/
332		384
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	385	static void
339	load_perl (pTHX_ Coro__State c)	386	load_perl (pTHX_ Coro__State c)
340	{	387	{
341	#define VAR(name,type) PL_ ## name = c->name;	388	#define VAR(name,type) PL_ ## name = c->name;
342	# include "state.h"	389	# include "state.h"
343	#undef VAR	390	#undef VAR
344		391
345	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	392	GvSV (PL_defgv) = c->defsv;
346	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	GvAV (PL_defgv) = c->defav;
347	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	GvSV (PL_errgv) = c->errsv;
348	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	395	PL_defoutgv = c->deffh;
349		396	PL_rs = c->irssv;
350	if (c->irssv)	397	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		398
365	{	399	{
366	dSP;	400	dSP;
367	CV *cv;	401	CV *cv;
368		402
…		…
374	CvPADLIST (cv) = (AV *)POPs;	408	CvPADLIST (cv) = (AV *)POPs;
375	}	409	}
376		410
377	PUTBACK;	411	PUTBACK;
378	}	412	}
379	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
380	}	413	}
381		414
382	static void	415	static void
383	save_perl (pTHX_ Coro__State c)	416	save_perl (pTHX_ Coro__State c)
384	{	417	{
385	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
386	{	418	{
387	dSP;	419	dSP;
388	I32 cxix = cxstack_ix;	420	I32 cxix = cxstack_ix;
389	PERL_CONTEXT *ccstk = cxstack;	421	PERL_CONTEXT *ccstk = cxstack;
390	PERL_SI *top_si = PL_curstackinfo;	422	PERL_SI *top_si = PL_curstackinfo;
…		…
392	/*	424	/*
393	* the worst thing you can imagine happens first - we have to save	425	* the worst thing you can imagine happens first - we have to save
394	* (and reinitialize) all cv's in the whole callchain :(	426	* (and reinitialize) all cv's in the whole callchain :(
395	*/	427	*/
396		428
397	EXTEND (SP, 3 + 1);
398	PUSHs (Nullsv);	429	XPUSHs (Nullsv);
399	/* this loop was inspired by pp_caller */	430	/* this loop was inspired by pp_caller */
400	for (;;)	431	for (;;)
401	{	432	{
402	while (cxix >= 0)	433	while (cxix >= 0)
403	{	434	{
404	PERL_CONTEXT *cx = &ccstk[cxix--];	435	PERL_CONTEXT *cx = &ccstk[cxix--];
405		436
406	if (CxTYPE (cx) == CXt_SUB)	437	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
407	{	438	{
408	CV *cv = cx->blk_sub.cv;	439	CV *cv = cx->blk_sub.cv;
409		440
410	if (CvDEPTH (cv))	441	if (CvDEPTH (cv))
411	{	442	{
…		…
422		453
423	if (top_si->si_type == PERLSI_MAIN)	454	if (top_si->si_type == PERLSI_MAIN)
424	break;	455	break;
425		456
426	top_si = top_si->si_prev;	457	top_si = top_si->si_prev;
427	ccstk = top_si->si_cxstack;	458	ccstk = top_si->si_cxstack;
428	cxix = top_si->si_cxix;	459	cxix = top_si->si_cxix;
429	}	460	}
430		461
431	PUTBACK;	462	PUTBACK;
432	}	463	}
433		464
434	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	465	c->defav = GvAV (PL_defgv);
435	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	466	c->defsv = DEFSV;
436	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	467	c->errsv = ERRSV;
437	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	468	c->deffh = PL_defoutgv;
438	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	469	c->irssv = PL_rs;
		470	c->irssv_sv = GvSV (irsgv);
439		471
440	#define VAR(name,type)c->name = PL_ ## name;	472	#define VAR(name,type)c->name = PL_ ## name;
441	# include "state.h"	473	# include "state.h"
442	#undef VAR	474	#undef VAR
443	}	475	}
…		…
452	# define coro_init_stacks init_stacks	484	# define coro_init_stacks init_stacks
453	#else	485	#else
454	static void	486	static void
455	coro_init_stacks (pTHX)	487	coro_init_stacks (pTHX)
456	{	488	{
457	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	489	PL_curstackinfo = new_stackinfo(64, 6);
458	PL_curstackinfo->si_type = PERLSI_MAIN;	490	PL_curstackinfo->si_type = PERLSI_MAIN;
459	PL_curstack = PL_curstackinfo->si_stack;	491	PL_curstack = PL_curstackinfo->si_stack;
460	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	492	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
461		493
462	PL_stack_base = AvARRAY(PL_curstack);	494	PL_stack_base = AvARRAY(PL_curstack);
463	PL_stack_sp = PL_stack_base;	495	PL_stack_sp = PL_stack_base;
464	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	496	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
465		497
466	New(50,PL_tmps_stack,128,SV*);	498	New(50,PL_tmps_stack,64,SV*);
467	PL_tmps_floor = -1;	499	PL_tmps_floor = -1;
468	PL_tmps_ix = -1;	500	PL_tmps_ix = -1;
469	PL_tmps_max = 128;	501	PL_tmps_max = 64;
470		502
471	New(54,PL_markstack,32,I32);	503	New(54,PL_markstack,16,I32);
472	PL_markstack_ptr = PL_markstack;	504	PL_markstack_ptr = PL_markstack;
473	PL_markstack_max = PL_markstack + 32;	505	PL_markstack_max = PL_markstack + 16;
474		506
475	#ifdef SET_MARK_OFFSET	507	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	508	SET_MARK_OFFSET;
477	#endif	509	#endif
478		510
479	New(54,PL_scopestack,32,I32);	511	New(54,PL_scopestack,16,I32);
480	PL_scopestack_ix = 0;	512	PL_scopestack_ix = 0;
481	PL_scopestack_max = 32;	513	PL_scopestack_max = 16;
482		514
483	New(54,PL_savestack,64,ANY);	515	New(54,PL_savestack,64,ANY);
484	PL_savestack_ix = 0;	516	PL_savestack_ix = 0;
485	PL_savestack_max = 64;	517	PL_savestack_max = 64;
486		518
487	#if !PERL_VERSION_ATLEAST (5,9,0)	519	#if !PERL_VERSION_ATLEAST (5,9,0)
488	New(54,PL_retstack,16,OP*);	520	New(54,PL_retstack,4,OP*);
489	PL_retstack_ix = 0;	521	PL_retstack_ix = 0;
490	PL_retstack_max = 16;	522	PL_retstack_max = 4;
491	#endif	523	#endif
492	}	524	}
493	#endif	525	#endif
494		526
495	/*	527	/*
496	* destroy the stacks, the callchain etc...	528	* destroy the stacks, the callchain etc...
497	*/	529	*/
498	static void	530	static void
499	coro_destroy_stacks (pTHX)	531	coro_destroy_stacks (pTHX)
500	{	532	{
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)	533	while (PL_curstackinfo->si_next)
519	PL_curstackinfo = PL_curstackinfo->si_next;	534	PL_curstackinfo = PL_curstackinfo->si_next;
520		535
521	while (PL_curstackinfo)	536	while (PL_curstackinfo)
522	{	537	{
…		…
537	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
538	Safefree (PL_retstack);	553	Safefree (PL_retstack);
539	#endif	554	#endif
540	}	555	}
541		556
		557	static size_t
		558	coro_rss (pTHX_ struct coro *coro)
		559	{
		560	size_t rss = sizeof (*coro);
		561
		562	if (coro->mainstack)
		563	{
		564	if (coro->flags & CF_RUNNING)
		565	{
		566	#define VAR(name,type)coro->name = PL_ ## name;
		567	# include "state.h"
		568	#undef VAR
		569	}
		570
		571	rss += sizeof (coro->curstackinfo);
		572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		575	rss += coro->tmps_max * sizeof (SV *);
		576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		577	rss += coro->scopestack_max * sizeof (I32);
		578	rss += coro->savestack_max * sizeof (ANY);
		579
		580	#if !PERL_VERSION_ATLEAST (5,9,0)
		581	rss += coro->retstack_max * sizeof (OP *);
		582	#endif
		583	}
		584
		585	return rss;
		586	}
		587
542	/ coroutine stack handling **********************************************/	588	/ coroutine stack handling **********************************************/
543		589
544	static void	590	static void
545	setup_coro (pTHX_ struct coro *coro)	591	coro_setup (pTHX_ struct coro *coro)
546	{	592	{
547	/*	593	/*
548	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
549	*/	595	*/
550	coro_init_stacks (aTHX);	596	coro_init_stacks (aTHX);
551		597
		598	PL_runops = RUNOPS_DEFAULT;
552	PL_curcop = &PL_compiling;	599	PL_curcop = &PL_compiling;
553	PL_in_eval = EVAL_NULL;	600	PL_in_eval = EVAL_NULL;
554	PL_comppad = 0;	601	PL_comppad = 0;
555	PL_curpm = 0;	602	PL_curpm = 0;
556	PL_localizing = 0;	603	PL_localizing = 0;
557	PL_dirty = 0;	604	PL_dirty = 0;
558	PL_restartop = 0;	605	PL_restartop = 0;
		606
		607	GvSV (PL_defgv) = NEWSV (0, 0);
		608	GvAV (PL_defgv) = coro->args; coro->args = 0;
		609	GvSV (PL_errgv) = NEWSV (0, 0);
		610	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		611	PL_rs = newSVsv (GvSV (irsgv));
		612
		613	{
		614	IO *io = newIO ();
		615	PL_defoutgv = newGVgen ("Coro");
		616	GvIOp(PL_defoutgv) = io;
		617	IoTYPE (io) = IoTYPE_WRONLY;
		618	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		619	IoFLAGS (io) \|= IOf_FLUSH;
		620	}
559		621
560	{	622	{
561	dSP;	623	dSP;
562	LOGOP myop;	624	LOGOP myop;
563		625
564	SvREFCNT_dec (GvAV (PL_defgv));
565	GvAV (PL_defgv) = coro->args; coro->args = 0;
566
567	Zero (&myop, 1, LOGOP);	626	Zero (&myop, 1, LOGOP);
568	myop.op_next = Nullop;	627	myop.op_next = Nullop;
569	myop.op_flags = OPf_WANT_VOID;	628	myop.op_flags = OPf_WANT_VOID;
570		629
571	PUSHMARK (SP);	630	PUSHMARK (SP);
572	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	631	XPUSHs (av_shift (GvAV (PL_defgv)));
573	PUTBACK;	632	PUTBACK;
574	PL_op = (OP *)&myop;	633	PL_op = (OP *)&myop;
575	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	634	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
576	SPAGAIN;	635	SPAGAIN;
577	}	636	}
578		637
579	ENTER; /* necessary e.g. for dounwind */	638	ENTER; /* necessary e.g. for dounwind */
580	}	639	}
581		640
582	static void	641	static void
		642	coro_destroy (pTHX_ struct coro *coro)
		643	{
		644	if (!IN_DESTRUCT)
		645	{
		646	/* restore all saved variables and stuff */
		647	LEAVE_SCOPE (0);
		648	assert (PL_tmps_floor == -1);
		649
		650	/* free all temporaries */
		651	FREETMPS;
		652	assert (PL_tmps_ix == -1);
		653
		654	/* unwind all extra stacks */
		655	POPSTACK_TO (PL_mainstack);
		656
		657	/* unwind main stack */
		658	dounwind (-1);
		659	}
		660
		661	SvREFCNT_dec (GvSV (PL_defgv));
		662	SvREFCNT_dec (GvAV (PL_defgv));
		663	SvREFCNT_dec (GvSV (PL_errgv));
		664	SvREFCNT_dec (PL_defoutgv);
		665	SvREFCNT_dec (PL_rs);
		666	SvREFCNT_dec (GvSV (irsgv));
		667
		668	SvREFCNT_dec (coro->asp_deffh);
		669	//SvREFCNT_dec (coro->throw);
		670
		671	coro_destroy_stacks (aTHX);
		672	}
		673
		674	static void
583	free_coro_mortal (pTHX)	675	free_coro_mortal (pTHX)
584	{	676	{
585	if (coro_mortal)	677	if (coro_mortal)
586	{	678	{
587	SvREFCNT_dec (coro_mortal);	679	SvREFCNT_dec (coro_mortal);
588	coro_mortal = 0;	680	coro_mortal = 0;
589	}	681	}
590	}	682	}
591		683
		684	static int
		685	runops_trace (pTHX)
		686	{
		687	COP *oldcop = 0;
		688	int oldcxix = -2;
		689	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		690	coro_cctx *cctx = coro->cctx;
		691
		692	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		693	{
		694	PERL_ASYNC_CHECK ();
		695
		696	if (cctx->flags & CC_TRACE_ALL)
		697	{
		698	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		699	{
		700	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		701	SV bot, top;
		702	AV av = newAV (); / return values */
		703	SV **cb;
		704	dSP;
		705
		706	GV *gv = CvGV (cx->blk_sub.cv);
		707	SV *fullname = sv_2mortal (newSV (0));
		708	if (isGV (gv))
		709	gv_efullname3 (fullname, gv, 0);
		710
		711	bot = PL_stack_base + cx->blk_oldsp + 1;
		712	top = cx->blk_gimme == G_ARRAY ? SP + 1
		713	: cx->blk_gimme == G_SCALAR ? bot + 1
		714	: bot;
		715
		716	while (bot < top)
		717	av_push (av, SvREFCNT_inc (*bot++));
		718
		719	PL_runops = RUNOPS_DEFAULT;
		720	ENTER;
		721	SAVETMPS;
		722	EXTEND (SP, 3);
		723	PUSHMARK (SP);
		724	PUSHs (&PL_sv_no);
		725	PUSHs (fullname);
		726	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		727	PUTBACK;
		728	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		729	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		730	SPAGAIN;
		731	FREETMPS;
		732	LEAVE;
		733	PL_runops = runops_trace;
		734	}
		735
		736	if (oldcop != PL_curcop)
		737	{
		738	oldcop = PL_curcop;
		739
		740	if (PL_curcop != &PL_compiling)
		741	{
		742	SV **cb;
		743
		744	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		745	{
		746	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		747
		748	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		749	{
		750	runops_proc_t old_runops = PL_runops;
		751	dSP;
		752	GV *gv = CvGV (cx->blk_sub.cv);
		753	SV *fullname = sv_2mortal (newSV (0));
		754
		755	if (isGV (gv))
		756	gv_efullname3 (fullname, gv, 0);
		757
		758	PL_runops = RUNOPS_DEFAULT;
		759	ENTER;
		760	SAVETMPS;
		761	EXTEND (SP, 3);
		762	PUSHMARK (SP);
		763	PUSHs (&PL_sv_yes);
		764	PUSHs (fullname);
		765	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		766	PUTBACK;
		767	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		768	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		769	SPAGAIN;
		770	FREETMPS;
		771	LEAVE;
		772	PL_runops = runops_trace;
		773	}
		774
		775	oldcxix = cxstack_ix;
		776	}
		777
		778	if (cctx->flags & CC_TRACE_LINE)
		779	{
		780	dSP;
		781
		782	PL_runops = RUNOPS_DEFAULT;
		783	ENTER;
		784	SAVETMPS;
		785	EXTEND (SP, 3);
		786	PL_runops = RUNOPS_DEFAULT;
		787	PUSHMARK (SP);
		788	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		789	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		790	PUTBACK;
		791	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		792	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		793	SPAGAIN;
		794	FREETMPS;
		795	LEAVE;
		796	PL_runops = runops_trace;
		797	}
		798	}
		799	}
		800	}
		801	}
		802
		803	TAINT_NOT;
		804	return 0;
		805	}
		806
592	/* inject a fake call to Coro::State::_cctx_init into the execution */	807	/* 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 */	808	/* _cctx_init should be careful, as it could be called at almost any time */
594	/* during execution of a pelr program */	809	/* during execution of a perl program */
595	static void NOINLINE	810	static void NOINLINE
596	prepare_cctx (pTHX_ coro_cctx *cctx)	811	prepare_cctx (pTHX_ coro_cctx *cctx)
597	{	812	{
598	dSP;	813	dSP;
599	LOGOP myop;	814	LOGOP myop;
		815
		816	PL_top_env = &PL_start_env;
		817
		818	if (cctx->flags & CC_TRACE)
		819	PL_runops = runops_trace;
600		820
601	Zero (&myop, 1, LOGOP);	821	Zero (&myop, 1, LOGOP);
602	myop.op_next = PL_op;	822	myop.op_next = PL_op;
603	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	823	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
604		824
…		…
621	dTHX;	841	dTHX;
622		842
623	/* coro_run is the alternative tail of transfer(), so unlock here. */	843	/* coro_run is the alternative tail of transfer(), so unlock here. */
624	UNLOCK;	844	UNLOCK;
625		845
626	PL_top_env = &PL_start_env;	846	/* we now skip the entersub that lead to transfer() */
		847	PL_op = PL_op->op_next;
627		848
628	/* inject a fake subroutine call to cctx_init */	849	/* inject a fake subroutine call to cctx_init */
629	prepare_cctx (aTHX_ (coro_cctx *)arg);	850	prepare_cctx (aTHX_ (coro_cctx *)arg);
630		851
631	/* somebody or something will hit me for both perl_run and PL_restartop */	852	/* somebody or something will hit me for both perl_run and PL_restartop */
632	PL_restartop = PL_op;	853	PL_restartop = PL_op;
633	perl_run (PL_curinterp);	854	perl_run (PL_curinterp);
634		855
		856	/*
635	/* If perl-run returns we assume exit() was being called, which */	857	* 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. */	858	* 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 */	859	* 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 */	860	* bootstrap-time "top" top_env, as we cannot restore the "main"
		861	* coroutine as Coro has no such concept
		862	*/
639	PL_top_env = main_top_env;	863	PL_top_env = main_top_env;
640	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	864	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
641	}	865	}
642		866
643	static coro_cctx *	867	static coro_cctx *
…		…
662	# if CORO_STACKGUARD	886	# if CORO_STACKGUARD
663	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	887	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
664	# endif	888	# endif
665	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	889	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
666	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	890	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
667	cctx->mapped = 1;	891	cctx->flags \|= CC_MAPPED;
668	}	892	}
669	else	893	else
670	#endif	894	#endif
671	{	895	{
672	cctx->ssize = coro_stacksize * (long)sizeof (long);	896	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
699	#if CORO_USE_VALGRIND	923	#if CORO_USE_VALGRIND
700	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	924	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
701	#endif	925	#endif
702		926
703	#if HAVE_MMAP	927	#if HAVE_MMAP
704	if (cctx->mapped)	928	if (cctx->flags & CC_MAPPED)
705	munmap (cctx->sptr, cctx->ssize);	929	munmap (cctx->sptr, cctx->ssize);
706	else	930	else
707	#endif	931	#endif
708	Safefree (cctx->sptr);	932	Safefree (cctx->sptr);
709		933
…		…
717	{	941	{
718	coro_cctx *cctx = cctx_first;	942	coro_cctx *cctx = cctx_first;
719	cctx_first = cctx->next;	943	cctx_first = cctx->next;
720	--cctx_idle;	944	--cctx_idle;
721		945
722	if (cctx->ssize >= coro_stacksize)	946	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
723	return cctx;	947	return cctx;
724		948
725	cctx_destroy (cctx);	949	cctx_destroy (cctx);
726	}	950	}
727		951
728	PL_op = PL_op->op_next;
729	return cctx_new ();	952	return cctx_new ();
730	}	953	}
731		954
732	static void	955	static void
733	cctx_put (coro_cctx *cctx)	956	cctx_put (coro_cctx *cctx)
…		…
737	{	960	{
738	coro_cctx *first = cctx_first;	961	coro_cctx *first = cctx_first;
739	cctx_first = first->next;	962	cctx_first = first->next;
740	--cctx_idle;	963	--cctx_idle;
741		964
742	assert (!first->inuse);
743	cctx_destroy (first);	965	cctx_destroy (first);
744	}	966	}
745		967
746	++cctx_idle;	968	++cctx_idle;
747	cctx->next = cctx_first;	969	cctx->next = cctx_first;
748	cctx_first = cctx;	970	cctx_first = cctx;
749	}	971	}
750		972
751	/ coroutine switching ***************************************************/	973	/ coroutine switching ***************************************************/
752		974
753	/* never call directly, always through the coro_state_transfer global variable */	975	static void NOINLINE
		976	transfer_check (pTHX_ struct coro prev, struct coro next)
		977	{
		978	if (prev != next)
		979	{
		980	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		981	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		982
		983	if (next->flags & CF_RUNNING)
		984	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		985
		986	if (next->flags & CF_DESTROYED)
		987	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		988
		989	if (PL_lex_state != LEX_NOTPARSING)
		990	croak ("Coro::State::transfer called while parsing, but this is not supported");
		991	}
		992	}
		993
		994	/* always use the TRANSFER macro */
754	static void NOINLINE	995	static void NOINLINE
755	transfer (pTHX_ struct coro prev, struct coro next)	996	transfer (pTHX_ struct coro prev, struct coro next)
756	{	997	{
757	dSTACKLEVEL;	998	dSTACKLEVEL;
758		999
…		…
768		1009
769	if (prev->flags & CF_NEW)	1010	if (prev->flags & CF_NEW)
770	{	1011	{
771	/* create a new empty context */	1012	/* create a new empty context */
772	Newz (0, prev->cctx, 1, coro_cctx);	1013	Newz (0, prev->cctx, 1, coro_cctx);
773	prev->cctx->inuse = 1;
774	prev->flags &= ~CF_NEW;	1014	prev->flags &= ~CF_NEW;
775	prev->flags \|= CF_RUNNING;	1015	prev->flags \|= CF_RUNNING;
776	}	1016	}
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		1017
788	prev->flags &= ~CF_RUNNING;	1018	prev->flags &= ~CF_RUNNING;
789	next->flags \|= CF_RUNNING;	1019	next->flags \|= CF_RUNNING;
790		1020
791	LOCK;	1021	LOCK;
…		…
795	/* need to start coroutine */	1025	/* need to start coroutine */
796	next->flags &= ~CF_NEW;	1026	next->flags &= ~CF_NEW;
797	/* first get rid of the old state */	1027	/* first get rid of the old state */
798	save_perl (aTHX_ prev);	1028	save_perl (aTHX_ prev);
799	/* setup coroutine call */	1029	/* setup coroutine call */
800	setup_coro (aTHX_ next);	1030	coro_setup (aTHX_ next);
801	/* need a new stack */
802	assert (!next->cctx);
803	}	1031	}
804	else	1032	else
805	{	1033	{
806	/* coroutine already started */	1034	/* coroutine already started */
807	save_perl (aTHX_ prev);	1035	save_perl (aTHX_ prev);
…		…
809	}	1037	}
810		1038
811	prev__cctx = prev->cctx;	1039	prev__cctx = prev->cctx;
812		1040
813	/* possibly "free" the cctx */	1041	/* possibly "free" the cctx */
814	if (prev__cctx->idle_sp == STACKLEVEL)	1042	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
815	{	1043	{
816	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1044	/* 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));	1045	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
818		1046
819	prev->cctx = 0;	1047	prev->cctx = 0;
820		1048
821	cctx_put (prev__cctx);	1049	cctx_put (prev__cctx);
822	prev__cctx->inuse = 0;
823	}	1050	}
824		1051
		1052	++next->usecount;
		1053
825	if (!next->cctx)	1054	if (!next->cctx)
826	{
827	next->cctx = cctx_get (aTHX);	1055	next->cctx = cctx_get (aTHX);
828	assert (!next->cctx->inuse);
829	next->cctx->inuse = 1;
830	}
831		1056
832	if (prev__cctx != next->cctx)	1057	if (prev__cctx != next->cctx)
833	{	1058	{
834	prev__cctx->top_env = PL_top_env;	1059	prev__cctx->top_env = PL_top_env;
835	PL_top_env = next->cctx->top_env;	1060	PL_top_env = next->cctx->top_env;
…		…
845	{	1070	{
846	struct coro prev, next;	1071	struct coro prev, next;
847	};	1072	};
848		1073
849	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1074	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1075	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
850		1076
851	/ high level stuff ******************************************************/	1077	/ high level stuff ******************************************************/
852		1078
853	static int	1079	static int
854	coro_state_destroy (pTHX_ struct coro *coro)	1080	coro_state_destroy (pTHX_ struct coro *coro)
…		…
871		1097
872	if (coro->mainstack && coro->mainstack != main_mainstack)	1098	if (coro->mainstack && coro->mainstack != main_mainstack)
873	{	1099	{
874	struct coro temp;	1100	struct coro temp;
875		1101
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)	1102	if (coro->flags & CF_RUNNING)
882	croak ("FATAL: tried to destroy currently running coroutine");	1103	croak ("FATAL: tried to destroy currently running coroutine");
883		1104
884	save_perl (aTHX_ &temp);	1105	save_perl (aTHX_ &temp);
885	load_perl (aTHX_ coro);	1106	load_perl (aTHX_ coro);
886		1107
887	coro_destroy_stacks (aTHX);	1108	coro_destroy (aTHX_ coro);
888		1109
889	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1110	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
890		1111
891	coro->mainstack = 0;	1112	coro->mainstack = 0;
892	}	1113	}
893		1114
894	cctx_destroy (coro->cctx);	1115	cctx_destroy (coro->cctx);
895	SvREFCNT_dec (coro->args);	1116	SvREFCNT_dec (coro->args);
896		1117
		1118	if (coro->next) coro->next->prev = coro->prev;
		1119	if (coro->prev) coro->prev->next = coro->next;
		1120	if (coro == coro_first) coro_first = coro->next;
		1121
897	return 1;	1122	return 1;
898	}	1123	}
899		1124
900	static int	1125	static int
901	coro_state_free (pTHX_ SV sv, MAGIC mg)	1126	coro_state_free (pTHX_ SV sv, MAGIC mg)
902	{	1127	{
903	struct coro coro = (struct coro )mg->mg_ptr;	1128	struct coro coro = (struct coro )mg->mg_ptr;
904	mg->mg_ptr = 0;	1129	mg->mg_ptr = 0;
		1130
		1131	coro->hv = 0;
905		1132
906	if (--coro->refcnt < 0)	1133	if (--coro->refcnt < 0)
907	{	1134	{
908	coro_state_destroy (aTHX_ coro);	1135	coro_state_destroy (aTHX_ coro);
909	Safefree (coro);	1136	Safefree (coro);
…		…
931	#else	1158	#else
932	# define MGf_DUP 0	1159	# define MGf_DUP 0
933	#endif	1160	#endif
934	};	1161	};
935		1162
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	1163	static void
960	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1164	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
961	{	1165	{
962	ta->prev = SvSTATE (prev_sv);	1166	ta->prev = SvSTATE (prev_sv);
963	ta->next = SvSTATE (next_sv);	1167	ta->next = SvSTATE (next_sv);
		1168	TRANSFER_CHECK (*ta);
964	}	1169	}
965		1170
966	static void	1171	static void
967	api_transfer (SV prev_sv, SV next_sv)	1172	api_transfer (SV prev_sv, SV next_sv)
968	{	1173	{
969	dTHX;	1174	dTHX;
970	struct transfer_args ta;	1175	struct transfer_args ta;
971		1176
972	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1177	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
973	TRANSFER (ta);	1178	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	}	1179	}
988		1180
989	/ Coro ******************************************************************/	1181	/ Coro ******************************************************************/
990		1182
991	static void	1183	static void
…		…
1085	break;	1277	break;
1086	}	1278	}
1087		1279
1088	/* free this only after the transfer */	1280	/* free this only after the transfer */
1089	prev_sv = SvRV (coro_current);	1281	prev_sv = SvRV (coro_current);
1090	SvRV_set (coro_current, next_sv);
1091	ta->prev = SvSTATE (prev_sv);	1282	ta->prev = SvSTATE (prev_sv);
1092		1283	TRANSFER_CHECK (*ta);
1093	assert (ta->next->flags & CF_READY);	1284	assert (ta->next->flags & CF_READY);
1094	ta->next->flags &= ~CF_READY;	1285	ta->next->flags &= ~CF_READY;
		1286	SvRV_set (coro_current, next_sv);
1095		1287
1096	LOCK;	1288	LOCK;
1097	free_coro_mortal (aTHX);	1289	free_coro_mortal (aTHX);
1098	coro_mortal = prev_sv;	1290	coro_mortal = prev_sv;
1099	UNLOCK;	1291	UNLOCK;
…		…
1160	}	1352	}
1161	else	1353	else
1162	return 0;	1354	return 0;
1163	}	1355	}
1164		1356
		1357	static void
		1358	api_trace (SV *coro_sv, int flags)
		1359	{
		1360	dTHX;
		1361	struct coro *coro = SvSTATE (coro_sv);
		1362
		1363	if (flags & CC_TRACE)
		1364	{
		1365	if (!coro->cctx)
		1366	coro->cctx = cctx_new ();
		1367	else if (!(coro->cctx->flags & CC_TRACE))
		1368	croak ("cannot enable tracing on coroutine with custom stack");
		1369
		1370	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1371	}
		1372	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1373	{
		1374	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1375
		1376	if (coro->flags & CF_RUNNING)
		1377	PL_runops = RUNOPS_DEFAULT;
		1378	else
		1379	coro->runops = RUNOPS_DEFAULT;
		1380	}
		1381	}
		1382
1165	MODULE = Coro::State PACKAGE = Coro::State	1383	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1166		1384
1167	PROTOTYPES: DISABLE	1385	PROTOTYPES: DISABLE
1168		1386
1169	BOOT:	1387	BOOT:
1170	{	1388	{
1171	#ifdef USE_ITHREADS	1389	#ifdef USE_ITHREADS
1172	MUTEX_INIT (&coro_mutex);	1390	MUTEX_INIT (&coro_mutex);
1173	#endif	1391	#endif
1174	BOOT_PAGESIZE;	1392	BOOT_PAGESIZE;
1175		1393
		1394	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1395
1176	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1177		1397
1178	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1179	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1399	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));	1400	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1184	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1185		1402
1186	main_mainstack = PL_mainstack;	1403	main_mainstack = PL_mainstack;
1187	main_top_env = PL_top_env;	1404	main_top_env = PL_top_env;
1188		1405
1189	while (main_top_env->je_prev)	1406	while (main_top_env->je_prev)
…		…
1202	struct coro *coro;	1419	struct coro *coro;
1203	HV *hv;	1420	HV *hv;
1204	int i;	1421	int i;
1205		1422
1206	Newz (0, coro, 1, struct coro);	1423	Newz (0, coro, 1, struct coro);
1207	coro->args = newAV ();	1424	coro->args = newAV ();
1208	coro->save = CORO_SAVE_DEF;
1209	coro->flags = CF_NEW;	1425	coro->flags = CF_NEW;
1210		1426
		1427	if (coro_first) coro_first->prev = coro;
		1428	coro->next = coro_first;
		1429	coro_first = coro;
		1430
1211	hv = newHV ();	1431	coro->hv = hv = newHV ();
1212	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1432	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));	1433	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1214		1434
1215	for (i = 1; i < items; i++)	1435	for (i = 1; i < items; i++)
1216	av_push (coro->args, newSVsv (ST (i)));	1436	av_push (coro->args, newSVsv (ST (i)));
1217	}	1437	}
1218	OUTPUT:	1438	OUTPUT:
1219	RETVAL	1439	RETVAL
1220		1440
1221	int	1441	# these not obviously related functions are all rolled into the same xs
1222	save (SV *coro, int new_save = -1)	1442	# function to increase chances that they all will call transfer with the same
1223	CODE:	1443	# 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	1444	void
1240	_set_stacklevel (...)	1445	_set_stacklevel (...)
1241	ALIAS:	1446	ALIAS:
1242	Coro::State::transfer = 1	1447	Coro::State::transfer = 1
1243	Coro::schedule = 2	1448	Coro::schedule = 2
…		…
1318	CODE:	1523	CODE:
1319	RETVAL = cctx_idle;	1524	RETVAL = cctx_idle;
1320	OUTPUT:	1525	OUTPUT:
1321	RETVAL	1526	RETVAL
1322		1527
		1528	void
		1529	list ()
		1530	PPCODE:
		1531	{
		1532	struct coro *coro;
		1533	for (coro = coro_first; coro; coro = coro->next)
		1534	if (coro->hv)
		1535	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1536	}
		1537
		1538	void
		1539	call (Coro::State coro, SV *coderef)
		1540	ALIAS:
		1541	eval = 1
		1542	CODE:
		1543	{
		1544	if (coro->mainstack)
		1545	{
		1546	struct coro temp;
		1547	Zero (&temp, 1, struct coro);
		1548
		1549	if (!(coro->flags & CF_RUNNING))
		1550	{
		1551	save_perl (aTHX_ &temp);
		1552	load_perl (aTHX_ coro);
		1553	}
		1554
		1555	{
		1556	dSP;
		1557	ENTER;
		1558	SAVETMPS;
		1559	PUSHMARK (SP);
		1560	PUTBACK;
		1561	if (ix)
		1562	eval_sv (coderef, 0);
		1563	else
		1564	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1565	SPAGAIN;
		1566	FREETMPS;
		1567	LEAVE;
		1568	PUTBACK;
		1569	}
		1570
		1571	if (!(coro->flags & CF_RUNNING))
		1572	{
		1573	save_perl (aTHX_ coro);
		1574	load_perl (aTHX_ &temp);
		1575	}
		1576	}
		1577	}
		1578
		1579	SV *
		1580	is_ready (Coro::State coro)
		1581	PROTOTYPE: $
		1582	ALIAS:
		1583	is_ready = CF_READY
		1584	is_running = CF_RUNNING
		1585	is_new = CF_NEW
		1586	is_destroyed = CF_DESTROYED
		1587	CODE:
		1588	RETVAL = boolSV (coro->flags & ix);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	void
		1593	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1594
		1595	SV *
		1596	has_stack (Coro::State coro)
		1597	PROTOTYPE: $
		1598	CODE:
		1599	RETVAL = boolSV (!!coro->cctx);
		1600	OUTPUT:
		1601	RETVAL
		1602
		1603	int
		1604	is_traced (Coro::State coro)
		1605	PROTOTYPE: $
		1606	CODE:
		1607	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1608	OUTPUT:
		1609	RETVAL
		1610
		1611	IV
		1612	rss (Coro::State coro)
		1613	PROTOTYPE: $
		1614	ALIAS:
		1615	usecount = 1
		1616	CODE:
		1617	switch (ix)
		1618	{
		1619	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1620	case 1: RETVAL = coro->usecount; break;
		1621	}
		1622	OUTPUT:
		1623	RETVAL
		1624
		1625
1323	MODULE = Coro::State PACKAGE = Coro	1626	MODULE = Coro::State PACKAGE = Coro
1324		1627
1325	BOOT:	1628	BOOT:
1326	{	1629	{
1327	int i;	1630	int i;
		1631
		1632	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1633	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1634	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1635
		1636	coro_current = get_sv ("Coro::current", FALSE);
		1637	SvREADONLY_on (coro_current);
1328		1638
1329	coro_stash = gv_stashpv ("Coro", TRUE);	1639	coro_stash = gv_stashpv ("Coro", TRUE);
1330		1640
1331	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1641	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1332	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1642	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1333	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1643	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1334	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1644	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1335	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1645	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1336	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1646	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1337		1647
1338	coro_current = get_sv ("Coro::current", FALSE);
1339	SvREADONLY_on (coro_current);
1340
1341	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1648	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1342	coro_ready[i] = newAV ();	1649	coro_ready[i] = newAV ();
1343		1650
1344	{	1651	{
1345	SV *sv = perl_get_sv("Coro::API", 1);	1652	SV *sv = perl_get_sv("Coro::API", 1);
1346		1653
1347	coroapi.schedule = api_schedule;	1654	coroapi.schedule = api_schedule;
1348	coroapi.save = api_save;
1349	coroapi.cede = api_cede;	1655	coroapi.cede = api_cede;
1350	coroapi.cede_notself = api_cede_notself;	1656	coroapi.cede_notself = api_cede_notself;
1351	coroapi.ready = api_ready;	1657	coroapi.ready = api_ready;
1352	coroapi.is_ready = api_is_ready;	1658	coroapi.is_ready = api_is_ready;
1353	coroapi.nready = &coro_nready;	1659	coroapi.nready = &coro_nready;
…		…
1394	CODE:	1700	CODE:
1395	RETVAL = boolSV (api_ready (self));	1701	RETVAL = boolSV (api_ready (self));
1396	OUTPUT:	1702	OUTPUT:
1397	RETVAL	1703	RETVAL
1398		1704
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	1705	int
1408	nready (...)	1706	nready (...)
1409	PROTOTYPE:	1707	PROTOTYPE:
1410	CODE:	1708	CODE:
1411	RETVAL = coro_nready;	1709	RETVAL = coro_nready;
1412	OUTPUT:	1710	OUTPUT:
1413	RETVAL	1711	RETVAL
1414		1712
		1713	# for async_pool speedup
		1714	void
		1715	_pool_1 (SV *cb)
		1716	CODE:
		1717	{
		1718	struct coro *coro = SvSTATE (coro_current);
		1719	HV hv = (HV )SvRV (coro_current);
		1720	AV *defav = GvAV (PL_defgv);
		1721	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1722	AV *invoke_av;
		1723	int i, len;
		1724
		1725	if (!invoke)
		1726	croak ("\3terminate\2\n");
		1727
		1728	SvREFCNT_dec (coro->asp_deffh);
		1729	coro->asp_deffh = SvREFCNT_inc (PL_defoutgv);
		1730
		1731	hv_store (hv, "desc", sizeof ("desc") - 1,
		1732	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1733
		1734	invoke_av = (AV *)SvRV (invoke);
		1735	len = av_len (invoke_av);
		1736
		1737	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1738
		1739	if (len > 0)
		1740	{
		1741	av_fill (defav, len - 1);
		1742	for (i = 0; i < len; ++i)
		1743	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1744	}
		1745
		1746	SvREFCNT_dec (invoke);
		1747	}
		1748
		1749	void
		1750	_pool_2 (SV *cb)
		1751	CODE:
		1752	{
		1753	struct coro *coro = SvSTATE (coro_current);
		1754
		1755	sv_setsv (cb, &PL_sv_undef);
		1756
		1757	SvREFCNT_dec (PL_defoutgv); PL_defoutgv = coro->asp_deffh;
		1758	coro->asp_deffh = 0;
		1759
		1760	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1761	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1762	croak ("\3terminate\2\n");
		1763
		1764	av_clear (GvAV (PL_defgv));
		1765	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1766	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1767
		1768	coro->prio = 0;
		1769
		1770	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1771	api_trace (coro_current, 0);
		1772
		1773	av_push (av_async_pool, newSVsv (coro_current));
		1774	}
		1775
		1776
1415	MODULE = Coro::State PACKAGE = Coro::AIO	1777	MODULE = Coro::State PACKAGE = Coro::AIO
1416		1778
1417	SV *	1779	SV *
1418	_get_state ()	1780	_get_state ()
1419	CODE:	1781	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 1.183 by root, Wed Oct 3 19:19:06 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 1.183 by root, Wed Oct 3 19:19:06 2007 UTC