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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.149 by root, Sat Apr 14 15:06:05 2007 UTC vs.
Revision 1.196 by root, Sat Oct 6 01:11:01 2007 UTC

…		…
75	/* 5.8.7 */	75	/* 5.8.7 */
76	#ifndef SvRV_set	76	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	78	#endif
79		79
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84	#ifndef newSV
		85	# define newSV(l) NEWSV(0,l)
		86	#endif
		87
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	89	# undef CORO_STACKGUARD
82	#endif	90	#endif
83		91
84	#ifndef CORO_STACKGUARD	92	#ifndef CORO_STACKGUARD
…		…
88	/* prefer perl internal functions over our own? */	96	/* prefer perl internal functions over our own? */
89	#ifndef CORO_PREFER_PERL_FUNCTIONS	97	#ifndef CORO_PREFER_PERL_FUNCTIONS
90	# define CORO_PREFER_PERL_FUNCTIONS 0	98	# define CORO_PREFER_PERL_FUNCTIONS 0
91	#endif	99	#endif
92		100
93	/* The next macro should declare a variable stacklevel that contains and approximation	101	/* The next macros try to return the current stack pointer, in an as
94	* to the current C stack pointer. Its property is that it changes with each call	102	* portable way as possible. */
95	* and should be unique. */
96	#define dSTACKLEVEL int stacklevel	103	#define dSTACKLEVEL volatile char stacklevel
97	#define STACKLEVEL ((void *)&stacklevel)	104	#define STACKLEVEL ((void *)&stacklevel)
98		105
99	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
100		107
101	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
102	# define attribute(x) __attribute__(x)	109	# define attribute(x) __attribute__(x)
103	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	110	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		111	# define expect(expr,value) __builtin_expect ((expr),(value))
104	#else	112	#else
105	# define attribute(x)	113	# define attribute(x)
106	# define BARRIER	114	# define BARRIER
		115	# define expect(expr,value) (expr)
107	#endif	116	#endif
		117
		118	#define expect_false(expr) expect ((expr) != 0, 0)
		119	#define expect_true(expr) expect ((expr) != 0, 1)
108		120
109	#define NOINLINE attribute ((noinline))	121	#define NOINLINE attribute ((noinline))
110		122
111	#include "CoroAPI.h"	123	#include "CoroAPI.h"
112		124
…		…
133	static AV main_mainstack; / used to differentiate between $main and others */	145	static AV main_mainstack; / used to differentiate between $main and others */
134	static JMPENV *main_top_env;	146	static JMPENV *main_top_env;
135	static HV coro_state_stash, coro_stash;	147	static HV coro_state_stash, coro_stash;
136	static SV coro_mortal; / will be freed after next transfer */	148	static SV coro_mortal; / will be freed after next transfer */
137		149
		150	static GV irsgv; / $/ */
		151	static GV stdoutgv; / STDOUT /
		152
		153	/* async_pool helper stuff */
		154	static SV *sv_pool_rss;
		155	static SV *sv_pool_size;
		156	static AV *av_async_pool;
		157
138	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
139	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
		160
		161	enum {
		162	CC_MAPPED = 0x01,
		163	CC_NOREUSE = 0x02, /* throw this away after tracing */
		164	CC_TRACE = 0x04,
		165	CC_TRACE_SUB = 0x08, /* trace sub calls */
		166	CC_TRACE_LINE = 0x10, /* trace each statement */
		167	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		168	};
140		169
141	/* this is a structure representing a c-level coroutine */	170	/* this is a structure representing a c-level coroutine */
142	typedef struct coro_cctx {	171	typedef struct coro_cctx {
143	struct coro_cctx *next;	172	struct coro_cctx *next;
144		173
…		…
153	coro_context cctx;	182	coro_context cctx;
154		183
155	#if CORO_USE_VALGRIND	184	#if CORO_USE_VALGRIND
156	int valgrind_id;	185	int valgrind_id;
157	#endif	186	#endif
158	char inuse, mapped;	187	unsigned char flags;
159	} coro_cctx;	188	} coro_cctx;
160		189
161	enum {	190	enum {
162	CF_RUNNING = 0x0001, /* coroutine is running */	191	CF_RUNNING = 0x0001, /* coroutine is running */
163	CF_READY = 0x0002, /* coroutine is ready */	192	CF_READY = 0x0002, /* coroutine is ready */
…		…
171	coro_cctx *cctx;	200	coro_cctx *cctx;
172		201
173	/* data associated with this coroutine (initial args) */	202	/* data associated with this coroutine (initial args) */
174	AV *args;	203	AV *args;
175	int refcnt;	204	int refcnt;
176	int save; /* CORO_SAVE flags */
177	int flags; /* CF_ flags */	205	int flags; /* CF_ flags */
178		206
179	/* optionally saved, might be zero */	207	/* optionally saved, might be zero */
180	AV defav; / @_ */	208	AV defav; / @_ */
181	SV defsv; / $_ */	209	SV defsv; / $_ */
182	SV errsv; / $@ */	210	SV errsv; / $@ */
183	GV deffh; / default filehandle */	211	SV deffh; / default filehandle */
184	SV irssv; / $/ */	212	SV irssv; / $/ */
185	SV irssv_sv; / real $/ cache */	213	SV irssv_sv; / real $/ cache */
186		214
187	#define VAR(name,type) type name;	215	#define VAR(name,type) type name;
188	# include "state.h"	216	# include "state.h"
189	#undef VAR	217	#undef VAR
190		218
		219	/* statistics */
		220	int usecount; /* number of transfers to this coro */
		221
191	/* coro process data */	222	/* coro process data */
192	int prio;	223	int prio;
		224	SV *throw;
		225
		226	/* async_pool */
		227	SV *saved_deffh;
		228
		229	/* linked list */
		230	struct coro next, prev;
		231	HV hv; / the perl hash associated with this coro, if any */
193	};	232	};
194		233
195	typedef struct coro *Coro__State;	234	typedef struct coro *Coro__State;
196	typedef struct coro *Coro__State_or_hashref;	235	typedef struct coro *Coro__State_or_hashref;
197		236
…		…
206		245
207	/* for Coro.pm */	246	/* for Coro.pm */
208	static SV *coro_current;	247	static SV *coro_current;
209	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	248	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
210	static int coro_nready;	249	static int coro_nready;
		250	static struct coro *coro_first;
211		251
212	/ lowlevel stuff ********************************************************/	252	/ lowlevel stuff ********************************************************/
213		253
214	static AV *	254	static AV *
215	coro_clone_padlist (pTHX_ CV *cv)	255	coro_clone_padlist (pTHX_ CV *cv)
…		…
281	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
282	? SvMAGIC (cv) \	322	? SvMAGIC (cv) \
283	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
284	: 0	324	: 0
285		325
		326	static struct coro *
		327	SvSTATE_ (pTHX_ SV *coro)
		328	{
		329	HV *stash;
		330	MAGIC *mg;
		331
		332	if (SvROK (coro))
		333	coro = SvRV (coro);
		334
		335	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		336	croak ("Coro::State object required");
		337
		338	stash = SvSTASH (coro);
		339	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		340	{
		341	/* very slow, but rare, check */
		342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		343	croak ("Coro::State object required");
		344	}
		345
		346	mg = CORO_MAGIC (coro);
		347	return (struct coro *)mg->mg_ptr;
		348	}
		349
		350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		351
286	/* the next two functions merely cache the padlists */	352	/* the next two functions merely cache the padlists */
287	static void	353	static void
288	get_padlist (pTHX_ CV *cv)	354	get_padlist (pTHX_ CV *cv)
289	{	355	{
290	MAGIC *mg = CORO_MAGIC (cv);	356	MAGIC *mg = CORO_MAGIC (cv);
291	AV *av;	357	AV *av;
292		358
293	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
294	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
295	else	361	else
296	{	362	{
297	#if CORO_PREFER_PERL_FUNCTIONS	363	#if CORO_PREFER_PERL_FUNCTIONS
298	/* this is probably cleaner, but also slower? */	364	/* this is probably cleaner, but also slower? */
…		…
310	put_padlist (pTHX_ CV *cv)	376	put_padlist (pTHX_ CV *cv)
311	{	377	{
312	MAGIC *mg = CORO_MAGIC (cv);	378	MAGIC *mg = CORO_MAGIC (cv);
313	AV *av;	379	AV *av;
314		380
315	if (!mg)	381	if (expect_false (!mg))
316	{	382	{
317	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	383	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
318	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	384	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
319	mg->mg_virtual = &vtbl_coro;	385	mg->mg_virtual = &vtbl_coro;
320	mg->mg_obj = (SV *)newAV ();	386	mg->mg_obj = (SV *)newAV ();
321	}	387	}
322		388
323	av = (AV *)mg->mg_obj;	389	av = (AV *)mg->mg_obj;
324		390
325	if (AvFILLp (av) >= AvMAX (av))	391	if (expect_false (AvFILLp (av) >= AvMAX (av)))
326	av_extend (av, AvMAX (av) + 1);	392	av_extend (av, AvMAX (av) + 1);
327		393
328	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	394	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
329	}	395	}
330		396
331	/ load & save, init *****************************************************/	397	/ load & save, init *****************************************************/
332
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		398
338	static void	399	static void
339	load_perl (pTHX_ Coro__State c)	400	load_perl (pTHX_ Coro__State c)
340	{	401	{
341	#define VAR(name,type) PL_ ## name = c->name;	402	#define VAR(name,type) PL_ ## name = c->name;
342	# include "state.h"	403	# include "state.h"
343	#undef VAR	404	#undef VAR
344		405
345	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	406	GvSV (PL_defgv) = c->defsv;
346	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	407	GvAV (PL_defgv) = c->defav;
347	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	408	GvSV (PL_errgv) = c->errsv;
348	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	409	GvSV (irsgv) = c->irssv_sv;
349
350	if (c->irssv)
351	{
352	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
353	{
354	SvREFCNT_dec (c->irssv);
355	c->irssv = 0;
356	}
357	else
358	{
359	REPLACE_SV (PL_rs, c->irssv);
360	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
361	sv_setsv (c->irssv_sv, PL_rs);
362	}
363	}
364		410
365	{	411	{
366	dSP;	412	dSP;
367	CV *cv;	413	CV *cv;
368		414
369	/* now do the ugly restore mess */	415	/* now do the ugly restore mess */
370	while ((cv = (CV *)POPs))	416	while (expect_true (cv = (CV *)POPs))
371	{	417	{
372	put_padlist (aTHX_ cv); /* mark this padlist as available */	418	put_padlist (aTHX_ cv); /* mark this padlist as available */
373	CvDEPTH (cv) = PTR2IV (POPs);	419	CvDEPTH (cv) = PTR2IV (POPs);
374	CvPADLIST (cv) = (AV *)POPs;	420	CvPADLIST (cv) = (AV *)POPs;
375	}	421	}
376		422
377	PUTBACK;	423	PUTBACK;
378	}	424	}
379	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
380	}	425	}
381		426
382	static void	427	static void
383	save_perl (pTHX_ Coro__State c)	428	save_perl (pTHX_ Coro__State c)
384	{	429	{
385	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
386	{	430	{
387	dSP;	431	dSP;
388	I32 cxix = cxstack_ix;	432	I32 cxix = cxstack_ix;
389	PERL_CONTEXT *ccstk = cxstack;	433	PERL_CONTEXT *ccstk = cxstack;
390	PERL_SI *top_si = PL_curstackinfo;	434	PERL_SI *top_si = PL_curstackinfo;
…		…
392	/*	436	/*
393	* the worst thing you can imagine happens first - we have to save	437	* the worst thing you can imagine happens first - we have to save
394	* (and reinitialize) all cv's in the whole callchain :(	438	* (and reinitialize) all cv's in the whole callchain :(
395	*/	439	*/
396		440
397	EXTEND (SP, 3 + 1);
398	PUSHs (Nullsv);	441	XPUSHs (Nullsv);
399	/* this loop was inspired by pp_caller */	442	/* this loop was inspired by pp_caller */
400	for (;;)	443	for (;;)
401	{	444	{
402	while (cxix >= 0)	445	while (expect_true (cxix >= 0))
403	{	446	{
404	PERL_CONTEXT *cx = &ccstk[cxix--];	447	PERL_CONTEXT *cx = &ccstk[cxix--];
405		448
406	if (CxTYPE (cx) == CXt_SUB)	449	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
407	{	450	{
408	CV *cv = cx->blk_sub.cv;	451	CV *cv = cx->blk_sub.cv;
409		452
410	if (CvDEPTH (cv))	453	if (expect_true (CvDEPTH (cv)))
411	{	454	{
412	EXTEND (SP, 3);	455	EXTEND (SP, 3);
413	PUSHs ((SV *)CvPADLIST (cv));	456	PUSHs ((SV *)CvPADLIST (cv));
414	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
415	PUSHs ((SV *)cv);	458	PUSHs ((SV *)cv);
…		…
418	get_padlist (aTHX_ cv);	461	get_padlist (aTHX_ cv);
419	}	462	}
420	}	463	}
421	}	464	}
422		465
423	if (top_si->si_type == PERLSI_MAIN)	466	if (expect_true (top_si->si_type == PERLSI_MAIN))
424	break;	467	break;
425		468
426	top_si = top_si->si_prev;	469	top_si = top_si->si_prev;
427	ccstk = top_si->si_cxstack;	470	ccstk = top_si->si_cxstack;
428	cxix = top_si->si_cxix;	471	cxix = top_si->si_cxix;
429	}	472	}
430		473
431	PUTBACK;	474	PUTBACK;
432	}	475	}
433		476
434	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	477	c->defav = GvAV (PL_defgv);
435	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	478	c->defsv = DEFSV;
436	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	479	c->errsv = ERRSV;
437	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	480	c->irssv_sv = GvSV (irsgv);
438	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
439		481
440	#define VAR(name,type)c->name = PL_ ## name;	482	#define VAR(name,type)c->name = PL_ ## name;
441	# include "state.h"	483	# include "state.h"
442	#undef VAR	484	#undef VAR
443	}	485	}
…		…
452	# define coro_init_stacks init_stacks	494	# define coro_init_stacks init_stacks
453	#else	495	#else
454	static void	496	static void
455	coro_init_stacks (pTHX)	497	coro_init_stacks (pTHX)
456	{	498	{
457	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	499	PL_curstackinfo = new_stackinfo(64, 6);
458	PL_curstackinfo->si_type = PERLSI_MAIN;	500	PL_curstackinfo->si_type = PERLSI_MAIN;
459	PL_curstack = PL_curstackinfo->si_stack;	501	PL_curstack = PL_curstackinfo->si_stack;
460	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
461		503
462	PL_stack_base = AvARRAY(PL_curstack);	504	PL_stack_base = AvARRAY(PL_curstack);
463	PL_stack_sp = PL_stack_base;	505	PL_stack_sp = PL_stack_base;
464	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
465		507
466	New(50,PL_tmps_stack,128,SV*);	508	New(50,PL_tmps_stack,64,SV*);
467	PL_tmps_floor = -1;	509	PL_tmps_floor = -1;
468	PL_tmps_ix = -1;	510	PL_tmps_ix = -1;
469	PL_tmps_max = 128;	511	PL_tmps_max = 64;
470		512
471	New(54,PL_markstack,32,I32);	513	New(54,PL_markstack,16,I32);
472	PL_markstack_ptr = PL_markstack;	514	PL_markstack_ptr = PL_markstack;
473	PL_markstack_max = PL_markstack + 32;	515	PL_markstack_max = PL_markstack + 16;
474		516
475	#ifdef SET_MARK_OFFSET	517	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	518	SET_MARK_OFFSET;
477	#endif	519	#endif
478		520
479	New(54,PL_scopestack,32,I32);	521	New(54,PL_scopestack,16,I32);
480	PL_scopestack_ix = 0;	522	PL_scopestack_ix = 0;
481	PL_scopestack_max = 32;	523	PL_scopestack_max = 16;
482		524
483	New(54,PL_savestack,64,ANY);	525	New(54,PL_savestack,64,ANY);
484	PL_savestack_ix = 0;	526	PL_savestack_ix = 0;
485	PL_savestack_max = 64;	527	PL_savestack_max = 64;
486		528
487	#if !PERL_VERSION_ATLEAST (5,9,0)	529	#if !PERL_VERSION_ATLEAST (5,9,0)
488	New(54,PL_retstack,16,OP*);	530	New(54,PL_retstack,4,OP*);
489	PL_retstack_ix = 0;	531	PL_retstack_ix = 0;
490	PL_retstack_max = 16;	532	PL_retstack_max = 4;
491	#endif	533	#endif
492	}	534	}
493	#endif	535	#endif
494		536
495	/*	537	/*
496	* destroy the stacks, the callchain etc...	538	* destroy the stacks, the callchain etc...
497	*/	539	*/
498	static void	540	static void
499	coro_destroy_stacks (pTHX)	541	coro_destroy_stacks (pTHX)
500	{	542	{
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)	543	while (PL_curstackinfo->si_next)
519	PL_curstackinfo = PL_curstackinfo->si_next;	544	PL_curstackinfo = PL_curstackinfo->si_next;
520		545
521	while (PL_curstackinfo)	546	while (PL_curstackinfo)
522	{	547	{
…		…
537	#if !PERL_VERSION_ATLEAST (5,9,0)	562	#if !PERL_VERSION_ATLEAST (5,9,0)
538	Safefree (PL_retstack);	563	Safefree (PL_retstack);
539	#endif	564	#endif
540	}	565	}
541		566
		567	static size_t
		568	coro_rss (pTHX_ struct coro *coro)
		569	{
		570	size_t rss = sizeof (*coro);
		571
		572	if (coro->mainstack)
		573	{
		574	if (coro->flags & CF_RUNNING)
		575	{
		576	#define VAR(name,type)coro->name = PL_ ## name;
		577	# include "state.h"
		578	#undef VAR
		579	}
		580
		581	rss += sizeof (coro->curstackinfo);
		582	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		583	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		585	rss += coro->tmps_max * sizeof (SV *);
		586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		587	rss += coro->scopestack_max * sizeof (I32);
		588	rss += coro->savestack_max * sizeof (ANY);
		589
		590	#if !PERL_VERSION_ATLEAST (5,9,0)
		591	rss += coro->retstack_max * sizeof (OP *);
		592	#endif
		593	}
		594
		595	return rss;
		596	}
		597
542	/ coroutine stack handling **********************************************/	598	/ coroutine stack handling **********************************************/
543		599
544	static void	600	static void
545	setup_coro (pTHX_ struct coro *coro)	601	coro_setup (pTHX_ struct coro *coro)
546	{	602	{
547	/*	603	/*
548	* emulate part of the perl startup here.	604	* emulate part of the perl startup here.
549	*/	605	*/
550	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
551		607
		608	PL_runops = RUNOPS_DEFAULT;
552	PL_curcop = &PL_compiling;	609	PL_curcop = &PL_compiling;
553	PL_in_eval = EVAL_NULL;	610	PL_in_eval = EVAL_NULL;
554	PL_comppad = 0;	611	PL_comppad = 0;
555	PL_curpm = 0;	612	PL_curpm = 0;
		613	PL_curpad = 0;
556	PL_localizing = 0;	614	PL_localizing = 0;
557	PL_dirty = 0;	615	PL_dirty = 0;
558	PL_restartop = 0;	616	PL_restartop = 0;
		617
		618	GvSV (PL_defgv) = newSV (0);
		619	GvAV (PL_defgv) = coro->args; coro->args = 0;
		620	GvSV (PL_errgv) = newSV (0);
		621	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		622	PL_rs = newSVsv (GvSV (irsgv));
		623	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
559		624
560	{	625	{
561	dSP;	626	dSP;
562	LOGOP myop;	627	LOGOP myop;
563		628
564	SvREFCNT_dec (GvAV (PL_defgv));
565	GvAV (PL_defgv) = coro->args; coro->args = 0;
566
567	Zero (&myop, 1, LOGOP);	629	Zero (&myop, 1, LOGOP);
568	myop.op_next = Nullop;	630	myop.op_next = Nullop;
569	myop.op_flags = OPf_WANT_VOID;	631	myop.op_flags = OPf_WANT_VOID;
570		632
571	PUSHMARK (SP);	633	PUSHMARK (SP);
572	XPUSHs (av_shift (GvAV (PL_defgv)));	634	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
573	PUTBACK;	635	PUTBACK;
574	PL_op = (OP *)&myop;	636	PL_op = (OP *)&myop;
575	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	637	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
576	SPAGAIN;	638	SPAGAIN;
577	}	639	}
578		640
579	ENTER; /* necessary e.g. for dounwind */	641	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
		642	}
		643
		644	static void
		645	coro_destroy (pTHX_ struct coro *coro)
		646	{
		647	if (!IN_DESTRUCT)
		648	{
		649	/* restore all saved variables and stuff */
		650	LEAVE_SCOPE (0);
		651	assert (PL_tmps_floor == -1);
		652
		653	/* free all temporaries */
		654	FREETMPS;
		655	assert (PL_tmps_ix == -1);
		656
		657	/* unwind all extra stacks */
		658	POPSTACK_TO (PL_mainstack);
		659
		660	/* unwind main stack */
		661	dounwind (-1);
		662	}
		663
		664	SvREFCNT_dec (GvSV (PL_defgv));
		665	SvREFCNT_dec (GvAV (PL_defgv));
		666	SvREFCNT_dec (GvSV (PL_errgv));
		667	SvREFCNT_dec (PL_defoutgv);
		668	SvREFCNT_dec (PL_rs);
		669	SvREFCNT_dec (GvSV (irsgv));
		670
		671	SvREFCNT_dec (coro->saved_deffh);
		672	SvREFCNT_dec (coro->throw);
		673
		674	coro_destroy_stacks (aTHX);
580	}	675	}
581		676
582	static void	677	static void
583	free_coro_mortal (pTHX)	678	free_coro_mortal (pTHX)
584	{	679	{
585	if (coro_mortal)	680	if (expect_true (coro_mortal))
586	{	681	{
587	SvREFCNT_dec (coro_mortal);	682	SvREFCNT_dec (coro_mortal);
588	coro_mortal = 0;	683	coro_mortal = 0;
589	}	684	}
590	}	685	}
591		686
		687	static int
		688	runops_trace (pTHX)
		689	{
		690	COP *oldcop = 0;
		691	int oldcxix = -2;
		692	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		693	coro_cctx *cctx = coro->cctx;
		694
		695	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		696	{
		697	PERL_ASYNC_CHECK ();
		698
		699	if (cctx->flags & CC_TRACE_ALL)
		700	{
		701	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		702	{
		703	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		704	SV bot, top;
		705	AV av = newAV (); / return values */
		706	SV **cb;
		707	dSP;
		708
		709	GV *gv = CvGV (cx->blk_sub.cv);
		710	SV *fullname = sv_2mortal (newSV (0));
		711	if (isGV (gv))
		712	gv_efullname3 (fullname, gv, 0);
		713
		714	bot = PL_stack_base + cx->blk_oldsp + 1;
		715	top = cx->blk_gimme == G_ARRAY ? SP + 1
		716	: cx->blk_gimme == G_SCALAR ? bot + 1
		717	: bot;
		718
		719	av_extend (av, top - bot);
		720	while (bot < top)
		721	av_push (av, SvREFCNT_inc (*bot++));
		722
		723	PL_runops = RUNOPS_DEFAULT;
		724	ENTER;
		725	SAVETMPS;
		726	EXTEND (SP, 3);
		727	PUSHMARK (SP);
		728	PUSHs (&PL_sv_no);
		729	PUSHs (fullname);
		730	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		731	PUTBACK;
		732	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		733	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		734	SPAGAIN;
		735	FREETMPS;
		736	LEAVE;
		737	PL_runops = runops_trace;
		738	}
		739
		740	if (oldcop != PL_curcop)
		741	{
		742	oldcop = PL_curcop;
		743
		744	if (PL_curcop != &PL_compiling)
		745	{
		746	SV **cb;
		747
		748	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		749	{
		750	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		751
		752	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		753	{
		754	runops_proc_t old_runops = PL_runops;
		755	dSP;
		756	GV *gv = CvGV (cx->blk_sub.cv);
		757	SV *fullname = sv_2mortal (newSV (0));
		758
		759	if (isGV (gv))
		760	gv_efullname3 (fullname, gv, 0);
		761
		762	PL_runops = RUNOPS_DEFAULT;
		763	ENTER;
		764	SAVETMPS;
		765	EXTEND (SP, 3);
		766	PUSHMARK (SP);
		767	PUSHs (&PL_sv_yes);
		768	PUSHs (fullname);
		769	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		770	PUTBACK;
		771	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		772	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		773	SPAGAIN;
		774	FREETMPS;
		775	LEAVE;
		776	PL_runops = runops_trace;
		777	}
		778
		779	oldcxix = cxstack_ix;
		780	}
		781
		782	if (cctx->flags & CC_TRACE_LINE)
		783	{
		784	dSP;
		785
		786	PL_runops = RUNOPS_DEFAULT;
		787	ENTER;
		788	SAVETMPS;
		789	EXTEND (SP, 3);
		790	PL_runops = RUNOPS_DEFAULT;
		791	PUSHMARK (SP);
		792	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		793	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		794	PUTBACK;
		795	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		796	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		797	SPAGAIN;
		798	FREETMPS;
		799	LEAVE;
		800	PL_runops = runops_trace;
		801	}
		802	}
		803	}
		804	}
		805	}
		806
		807	TAINT_NOT;
		808	return 0;
		809	}
		810
592	/* inject a fake call to Coro::State::_cctx_init into the execution */	811	/* 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 */	812	/* _cctx_init should be careful, as it could be called at almost any time */
594	/* during execution of a pelr program */	813	/* during execution of a perl program */
595	static void NOINLINE	814	static void NOINLINE
596	prepare_cctx (pTHX_ coro_cctx *cctx)	815	prepare_cctx (pTHX_ coro_cctx *cctx)
597	{	816	{
598	dSP;	817	dSP;
599	LOGOP myop;	818	LOGOP myop;
		819
		820	PL_top_env = &PL_start_env;
		821
		822	if (cctx->flags & CC_TRACE)
		823	PL_runops = runops_trace;
600		824
601	Zero (&myop, 1, LOGOP);	825	Zero (&myop, 1, LOGOP);
602	myop.op_next = PL_op;	826	myop.op_next = PL_op;
603	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	827	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
604		828
…		…
621	dTHX;	845	dTHX;
622		846
623	/* coro_run is the alternative tail of transfer(), so unlock here. */	847	/* coro_run is the alternative tail of transfer(), so unlock here. */
624	UNLOCK;	848	UNLOCK;
625		849
626	PL_top_env = &PL_start_env;	850	/* we now skip the entersub that lead to transfer() */
		851	PL_op = PL_op->op_next;
627		852
628	/* inject a fake subroutine call to cctx_init */	853	/* inject a fake subroutine call to cctx_init */
629	prepare_cctx (aTHX_ (coro_cctx *)arg);	854	prepare_cctx (aTHX_ (coro_cctx *)arg);
630		855
631	/* somebody or something will hit me for both perl_run and PL_restartop */	856	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
665	# if CORO_STACKGUARD	890	# if CORO_STACKGUARD
666	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	891	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
667	# endif	892	# endif
668	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	893	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
669	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	894	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
670	cctx->mapped = 1;	895	cctx->flags \|= CC_MAPPED;
671	}	896	}
672	else	897	else
673	#endif	898	#endif
674	{	899	{
675	cctx->ssize = coro_stacksize * (long)sizeof (long);	900	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
702	#if CORO_USE_VALGRIND	927	#if CORO_USE_VALGRIND
703	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	928	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
704	#endif	929	#endif
705		930
706	#if HAVE_MMAP	931	#if HAVE_MMAP
707	if (cctx->mapped)	932	if (cctx->flags & CC_MAPPED)
708	munmap (cctx->sptr, cctx->ssize);	933	munmap (cctx->sptr, cctx->ssize);
709	else	934	else
710	#endif	935	#endif
711	Safefree (cctx->sptr);	936	Safefree (cctx->sptr);
712		937
713	Safefree (cctx);	938	Safefree (cctx);
714	}	939	}
715		940
		941	/* wether this cctx should be destructed */
		942	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		943
716	static coro_cctx *	944	static coro_cctx *
717	cctx_get (pTHX)	945	cctx_get (pTHX)
718	{	946	{
719	while (cctx_first)	947	while (expect_true (cctx_first))
720	{	948	{
721	coro_cctx *cctx = cctx_first;	949	coro_cctx *cctx = cctx_first;
722	cctx_first = cctx->next;	950	cctx_first = cctx->next;
723	--cctx_idle;	951	--cctx_idle;
724		952
725	if (cctx->ssize >= coro_stacksize)	953	if (expect_true (!CCTX_EXPIRED (cctx)))
726	return cctx;	954	return cctx;
727		955
728	cctx_destroy (cctx);	956	cctx_destroy (cctx);
729	}	957	}
730		958
731	PL_op = PL_op->op_next;
732	return cctx_new ();	959	return cctx_new ();
733	}	960	}
734		961
735	static void	962	static void
736	cctx_put (coro_cctx *cctx)	963	cctx_put (coro_cctx *cctx)
737	{	964	{
738	/* free another cctx if overlimit */	965	/* free another cctx if overlimit */
739	if (cctx_idle >= MAX_IDLE_CCTX)	966	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
740	{	967	{
741	coro_cctx *first = cctx_first;	968	coro_cctx *first = cctx_first;
742	cctx_first = first->next;	969	cctx_first = first->next;
743	--cctx_idle;	970	--cctx_idle;
744		971
745	assert (!first->inuse);
746	cctx_destroy (first);	972	cctx_destroy (first);
747	}	973	}
748		974
749	++cctx_idle;	975	++cctx_idle;
750	cctx->next = cctx_first;	976	cctx->next = cctx_first;
751	cctx_first = cctx;	977	cctx_first = cctx;
752	}	978	}
753		979
754	/ coroutine switching ***************************************************/	980	/ coroutine switching ***************************************************/
755		981
756	/* never call directly, always through the coro_state_transfer global variable */	982	static void
		983	transfer_check (pTHX_ struct coro prev, struct coro next)
		984	{
		985	if (expect_true (prev != next))
		986	{
		987	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		988	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		989
		990	if (expect_false (next->flags & CF_RUNNING))
		991	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		992
		993	if (expect_false (next->flags & CF_DESTROYED))
		994	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		995
		996	if (expect_false (PL_lex_state != LEX_NOTPARSING))
		997	croak ("Coro::State::transfer called while parsing, but this is not supported");
		998	}
		999	}
		1000
		1001	/* always use the TRANSFER macro */
757	static void NOINLINE	1002	static void NOINLINE
758	transfer (pTHX_ struct coro prev, struct coro next)	1003	transfer (pTHX_ struct coro prev, struct coro next)
759	{	1004	{
760	dSTACKLEVEL;	1005	dSTACKLEVEL;
761		1006
762	/* sometimes transfer is only called to set idle_sp */	1007	/* sometimes transfer is only called to set idle_sp */
763	if (!next)	1008	if (expect_false (!next))
764	{	1009	{
765	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1010	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
766	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1011	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
767	}	1012	}
768	else if (prev != next)	1013	else if (expect_true (prev != next))
769	{	1014	{
770	coro_cctx *prev__cctx;	1015	coro_cctx *prev__cctx;
771		1016
772	if (prev->flags & CF_NEW)	1017	if (expect_false (prev->flags & CF_NEW))
773	{	1018	{
774	/* create a new empty context */	1019	/* create a new empty context */
775	Newz (0, prev->cctx, 1, coro_cctx);	1020	Newz (0, prev->cctx, 1, coro_cctx);
776	prev->cctx->inuse = 1;
777	prev->flags &= ~CF_NEW;	1021	prev->flags &= ~CF_NEW;
778	prev->flags \|= CF_RUNNING;	1022	prev->flags \|= CF_RUNNING;
779	}	1023	}
780		1024
781	/TODO: must not croak here /
782	if (!prev->flags & CF_RUNNING)
783	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
784
785	if (next->flags & CF_RUNNING)
786	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
787
788	if (next->flags & CF_DESTROYED)
789	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
790
791	prev->flags &= ~CF_RUNNING;	1025	prev->flags &= ~CF_RUNNING;
792	next->flags \|= CF_RUNNING;	1026	next->flags \|= CF_RUNNING;
793		1027
794	LOCK;	1028	LOCK;
795		1029
796	if (next->flags & CF_NEW)	1030	if (expect_false (next->flags & CF_NEW))
797	{	1031	{
798	/* need to start coroutine */	1032	/* need to start coroutine */
799	next->flags &= ~CF_NEW;	1033	next->flags &= ~CF_NEW;
800	/* first get rid of the old state */	1034	/* first get rid of the old state */
801	save_perl (aTHX_ prev);	1035	save_perl (aTHX_ prev);
802	/* setup coroutine call */	1036	/* setup coroutine call */
803	setup_coro (aTHX_ next);	1037	coro_setup (aTHX_ next);
804	/* need a new stack */
805	assert (!next->cctx);
806	}	1038	}
807	else	1039	else
808	{	1040	{
809	/* coroutine already started */	1041	/* coroutine already started */
810	save_perl (aTHX_ prev);	1042	save_perl (aTHX_ prev);
…		…
812	}	1044	}
813		1045
814	prev__cctx = prev->cctx;	1046	prev__cctx = prev->cctx;
815		1047
816	/* possibly "free" the cctx */	1048	/* possibly "free" the cctx */
817	if (prev__cctx->idle_sp == STACKLEVEL)	1049	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
818	{	1050	{
819	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1051	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
820	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1052	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
821		1053
822	prev->cctx = 0;	1054	prev->cctx = 0;
823		1055
		1056	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1057	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1058	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1059	next->cctx = cctx_get (aTHX);
		1060
824	cctx_put (prev__cctx);	1061	cctx_put (prev__cctx);
825	prev__cctx->inuse = 0;
826	}	1062	}
827		1063
		1064	++next->usecount;
		1065
828	if (!next->cctx)	1066	if (expect_true (!next->cctx))
829	{
830	next->cctx = cctx_get (aTHX);	1067	next->cctx = cctx_get (aTHX);
831	assert (!next->cctx->inuse);
832	next->cctx->inuse = 1;
833	}
834		1068
835	if (prev__cctx != next->cctx)	1069	if (expect_false (prev__cctx != next->cctx))
836	{	1070	{
837	prev__cctx->top_env = PL_top_env;	1071	prev__cctx->top_env = PL_top_env;
838	PL_top_env = next->cctx->top_env;	1072	PL_top_env = next->cctx->top_env;
839	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1073	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
840	}	1074	}
841		1075
842	free_coro_mortal (aTHX);	1076	free_coro_mortal (aTHX);
843	UNLOCK;	1077	UNLOCK;
		1078
		1079	if (expect_false (prev->throw \|\| next->throw))
		1080	{
		1081	struct coro *coro = SvSTATE (coro_current);
		1082
		1083	if (coro->throw)
		1084	{
		1085	SV *exception = coro->throw;
		1086	coro->throw = 0;
		1087	sv_setsv (ERRSV, exception);
		1088	croak (0);
		1089	}
		1090	}
844	}	1091	}
845	}	1092	}
846		1093
847	struct transfer_args	1094	struct transfer_args
848	{	1095	{
849	struct coro prev, next;	1096	struct coro prev, next;
850	};	1097	};
851		1098
852	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1099	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1100	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
853		1101
854	/ high level stuff ******************************************************/	1102	/ high level stuff ******************************************************/
855		1103
856	static int	1104	static int
857	coro_state_destroy (pTHX_ struct coro *coro)	1105	coro_state_destroy (pTHX_ struct coro *coro)
…		…
874		1122
875	if (coro->mainstack && coro->mainstack != main_mainstack)	1123	if (coro->mainstack && coro->mainstack != main_mainstack)
876	{	1124	{
877	struct coro temp;	1125	struct coro temp;
878		1126
879	assert (!(coro->flags & CF_RUNNING));
880
881	Zero (&temp, 1, struct coro);
882	temp.save = CORO_SAVE_DEF;
883
884	if (coro->flags & CF_RUNNING)	1127	if (coro->flags & CF_RUNNING)
885	croak ("FATAL: tried to destroy currently running coroutine");	1128	croak ("FATAL: tried to destroy currently running coroutine");
886		1129
887	save_perl (aTHX_ &temp);	1130	save_perl (aTHX_ &temp);
888	load_perl (aTHX_ coro);	1131	load_perl (aTHX_ coro);
889		1132
890	coro_destroy_stacks (aTHX);	1133	coro_destroy (aTHX_ coro);
891		1134
892	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1135	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
893		1136
894	coro->mainstack = 0;	1137	coro->mainstack = 0;
895	}	1138	}
896		1139
897	cctx_destroy (coro->cctx);	1140	cctx_destroy (coro->cctx);
898	SvREFCNT_dec (coro->args);	1141	SvREFCNT_dec (coro->args);
899		1142
		1143	if (coro->next) coro->next->prev = coro->prev;
		1144	if (coro->prev) coro->prev->next = coro->next;
		1145	if (coro == coro_first) coro_first = coro->next;
		1146
900	return 1;	1147	return 1;
901	}	1148	}
902		1149
903	static int	1150	static int
904	coro_state_free (pTHX_ SV sv, MAGIC mg)	1151	coro_state_free (pTHX_ SV sv, MAGIC mg)
905	{	1152	{
906	struct coro coro = (struct coro )mg->mg_ptr;	1153	struct coro coro = (struct coro )mg->mg_ptr;
907	mg->mg_ptr = 0;	1154	mg->mg_ptr = 0;
		1155
		1156	coro->hv = 0;
908		1157
909	if (--coro->refcnt < 0)	1158	if (--coro->refcnt < 0)
910	{	1159	{
911	coro_state_destroy (aTHX_ coro);	1160	coro_state_destroy (aTHX_ coro);
912	Safefree (coro);	1161	Safefree (coro);
…		…
934	#else	1183	#else
935	# define MGf_DUP 0	1184	# define MGf_DUP 0
936	#endif	1185	#endif
937	};	1186	};
938		1187
939	static struct coro *
940	SvSTATE_ (pTHX_ SV *coro)
941	{
942	HV *stash;
943	MAGIC *mg;
944
945	if (SvROK (coro))
946	coro = SvRV (coro);
947
948	stash = SvSTASH (coro);
949	if (stash != coro_stash && stash != coro_state_stash)
950	{
951	/* very slow, but rare, check */
952	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
953	croak ("Coro::State object required");
954	}
955
956	mg = CORO_MAGIC (coro);
957	return (struct coro *)mg->mg_ptr;
958	}
959
960	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
961
962	static void	1188	static void
963	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1189	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
964	{	1190	{
965	ta->prev = SvSTATE (prev_sv);	1191	ta->prev = SvSTATE (prev_sv);
966	ta->next = SvSTATE (next_sv);	1192	ta->next = SvSTATE (next_sv);
		1193	TRANSFER_CHECK (*ta);
967	}	1194	}
968		1195
969	static void	1196	static void
970	api_transfer (SV prev_sv, SV next_sv)	1197	api_transfer (SV prev_sv, SV next_sv)
971	{	1198	{
972	dTHX;	1199	dTHX;
973	struct transfer_args ta;	1200	struct transfer_args ta;
974		1201
975	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1202	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
976	TRANSFER (ta);	1203	TRANSFER (ta);
977	}
978
979	static int
980	api_save (SV *coro_sv, int new_save)
981	{
982	dTHX;
983	struct coro *coro = SvSTATE (coro_sv);
984	int old_save = coro->save;
985
986	if (new_save >= 0)
987	coro->save = new_save;
988
989	return old_save;
990	}	1204	}
991		1205
992	/ Coro ******************************************************************/	1206	/ Coro ******************************************************************/
993		1207
994	static void	1208	static void
…		…
1053	{	1267	{
1054	LOCK;	1268	LOCK;
1055	next_sv = coro_deq (aTHX_ PRIO_MIN);	1269	next_sv = coro_deq (aTHX_ PRIO_MIN);
1056		1270
1057	/* nothing to schedule: call the idle handler */	1271	/* nothing to schedule: call the idle handler */
1058	if (!next_sv)	1272	if (expect_false (!next_sv))
1059	{	1273	{
1060	dSP;	1274	dSP;
1061	UNLOCK;	1275	UNLOCK;
1062		1276
1063	ENTER;	1277	ENTER;
…		…
1073	}	1287	}
1074		1288
1075	ta->next = SvSTATE (next_sv);	1289	ta->next = SvSTATE (next_sv);
1076		1290
1077	/* cannot transfer to destroyed coros, skip and look for next */	1291	/* cannot transfer to destroyed coros, skip and look for next */
1078	if (ta->next->flags & CF_DESTROYED)	1292	if (expect_false (ta->next->flags & CF_DESTROYED))
1079	{	1293	{
1080	UNLOCK;	1294	UNLOCK;
1081	SvREFCNT_dec (next_sv);	1295	SvREFCNT_dec (next_sv);
1082	/* coro_nready is already taken care of by destroy */	1296	/* coro_nready is already taken care of by destroy */
1083	continue;	1297	continue;
…		…
1088	break;	1302	break;
1089	}	1303	}
1090		1304
1091	/* free this only after the transfer */	1305	/* free this only after the transfer */
1092	prev_sv = SvRV (coro_current);	1306	prev_sv = SvRV (coro_current);
1093	SvRV_set (coro_current, next_sv);
1094	ta->prev = SvSTATE (prev_sv);	1307	ta->prev = SvSTATE (prev_sv);
1095		1308	TRANSFER_CHECK (*ta);
1096	assert (ta->next->flags & CF_READY);	1309	assert (ta->next->flags & CF_READY);
1097	ta->next->flags &= ~CF_READY;	1310	ta->next->flags &= ~CF_READY;
		1311	SvRV_set (coro_current, next_sv);
1098		1312
1099	LOCK;	1313	LOCK;
1100	free_coro_mortal (aTHX);	1314	free_coro_mortal (aTHX);
1101	coro_mortal = prev_sv;	1315	coro_mortal = prev_sv;
1102	UNLOCK;	1316	UNLOCK;
…		…
1139	dTHX;	1353	dTHX;
1140	struct transfer_args ta;	1354	struct transfer_args ta;
1141		1355
1142	prepare_cede (aTHX_ &ta);	1356	prepare_cede (aTHX_ &ta);
1143		1357
1144	if (ta.prev != ta.next)	1358	if (expect_true (ta.prev != ta.next))
1145	{	1359	{
1146	TRANSFER (ta);	1360	TRANSFER (ta);
1147	return 1;	1361	return 1;
1148	}	1362	}
1149	else	1363	else
…		…
1163	}	1377	}
1164	else	1378	else
1165	return 0;	1379	return 0;
1166	}	1380	}
1167		1381
		1382	static void
		1383	api_trace (SV *coro_sv, int flags)
		1384	{
		1385	dTHX;
		1386	struct coro *coro = SvSTATE (coro_sv);
		1387
		1388	if (flags & CC_TRACE)
		1389	{
		1390	if (!coro->cctx)
		1391	coro->cctx = cctx_new ();
		1392	else if (!(coro->cctx->flags & CC_TRACE))
		1393	croak ("cannot enable tracing on coroutine with custom stack");
		1394
		1395	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1396	}
		1397	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1398	{
		1399	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1400
		1401	if (coro->flags & CF_RUNNING)
		1402	PL_runops = RUNOPS_DEFAULT;
		1403	else
		1404	coro->runops = RUNOPS_DEFAULT;
		1405	}
		1406	}
		1407
1168	MODULE = Coro::State PACKAGE = Coro::State	1408	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1169		1409
1170	PROTOTYPES: DISABLE	1410	PROTOTYPES: DISABLE
1171		1411
1172	BOOT:	1412	BOOT:
1173	{	1413	{
1174	#ifdef USE_ITHREADS	1414	#ifdef USE_ITHREADS
1175	MUTEX_INIT (&coro_mutex);	1415	MUTEX_INIT (&coro_mutex);
1176	#endif	1416	#endif
1177	BOOT_PAGESIZE;	1417	BOOT_PAGESIZE;
1178		1418
		1419	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1420	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1421
1179	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1422	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1180		1423
1181	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1424	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1182	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1425	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1183	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1184	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1185	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1186	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1426	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1187	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1427	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1188		1428
1189	main_mainstack = PL_mainstack;	1429	main_mainstack = PL_mainstack;
1190	main_top_env = PL_top_env;	1430	main_top_env = PL_top_env;
1191		1431
1192	while (main_top_env->je_prev)	1432	while (main_top_env->je_prev)
…		…
1205	struct coro *coro;	1445	struct coro *coro;
1206	HV *hv;	1446	HV *hv;
1207	int i;	1447	int i;
1208		1448
1209	Newz (0, coro, 1, struct coro);	1449	Newz (0, coro, 1, struct coro);
1210	coro->args = newAV ();	1450	coro->args = newAV ();
1211	coro->save = CORO_SAVE_DEF;
1212	coro->flags = CF_NEW;	1451	coro->flags = CF_NEW;
1213		1452
		1453	if (coro_first) coro_first->prev = coro;
		1454	coro->next = coro_first;
		1455	coro_first = coro;
		1456
1214	hv = newHV ();	1457	coro->hv = hv = newHV ();
1215	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1458	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1216	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1459	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1217		1460
		1461	av_extend (coro->args, items - 1);
1218	for (i = 1; i < items; i++)	1462	for (i = 1; i < items; i++)
1219	av_push (coro->args, newSVsv (ST (i)));	1463	av_push (coro->args, newSVsv (ST (i)));
1220	}	1464	}
1221	OUTPUT:	1465	OUTPUT:
1222	RETVAL	1466	RETVAL
1223		1467
1224	int	1468	# these not obviously related functions are all rolled into the same xs
1225	save (SV *coro, int new_save = -1)	1469	# function to increase chances that they all will call transfer with the same
1226	CODE:	1470	# stack offset
1227	RETVAL = api_save (coro, new_save);
1228	OUTPUT:
1229	RETVAL
1230
1231	int
1232	save_also (SV *coro_sv, int save_also)
1233	CODE:
1234	{
1235	struct coro *coro = SvSTATE (coro_sv);
1236	RETVAL = coro->save;
1237	coro->save \|= save_also;
1238	}
1239	OUTPUT:
1240	RETVAL
1241
1242	void	1471	void
1243	_set_stacklevel (...)	1472	_set_stacklevel (...)
1244	ALIAS:	1473	ALIAS:
1245	Coro::State::transfer = 1	1474	Coro::State::transfer = 1
1246	Coro::schedule = 2	1475	Coro::schedule = 2
…		…
1280	}	1509	}
1281		1510
1282	BARRIER;	1511	BARRIER;
1283	TRANSFER (ta);	1512	TRANSFER (ta);
1284		1513
1285	if (GIMME_V != G_VOID && ta.next != ta.prev)	1514	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1286	XSRETURN_YES;	1515	XSRETURN_YES;
1287	}	1516	}
1288		1517
1289	bool	1518	bool
1290	_destroy (SV *coro_sv)	1519	_destroy (SV *coro_sv)
…		…
1321	CODE:	1550	CODE:
1322	RETVAL = cctx_idle;	1551	RETVAL = cctx_idle;
1323	OUTPUT:	1552	OUTPUT:
1324	RETVAL	1553	RETVAL
1325		1554
		1555	void
		1556	list ()
		1557	PPCODE:
		1558	{
		1559	struct coro *coro;
		1560	for (coro = coro_first; coro; coro = coro->next)
		1561	if (coro->hv)
		1562	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1563	}
		1564
		1565	void
		1566	call (Coro::State coro, SV *coderef)
		1567	ALIAS:
		1568	eval = 1
		1569	CODE:
		1570	{
		1571	if (coro->mainstack)
		1572	{
		1573	struct coro temp;
		1574	Zero (&temp, 1, struct coro);
		1575
		1576	if (!(coro->flags & CF_RUNNING))
		1577	{
		1578	save_perl (aTHX_ &temp);
		1579	load_perl (aTHX_ coro);
		1580	}
		1581
		1582	{
		1583	dSP;
		1584	ENTER;
		1585	SAVETMPS;
		1586	PUSHMARK (SP);
		1587	PUTBACK;
		1588	if (ix)
		1589	eval_sv (coderef, 0);
		1590	else
		1591	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1592	SPAGAIN;
		1593	FREETMPS;
		1594	LEAVE;
		1595	PUTBACK;
		1596	}
		1597
		1598	if (!(coro->flags & CF_RUNNING))
		1599	{
		1600	save_perl (aTHX_ coro);
		1601	load_perl (aTHX_ &temp);
		1602	}
		1603	}
		1604	}
		1605
		1606	SV *
		1607	is_ready (Coro::State coro)
		1608	PROTOTYPE: $
		1609	ALIAS:
		1610	is_ready = CF_READY
		1611	is_running = CF_RUNNING
		1612	is_new = CF_NEW
		1613	is_destroyed = CF_DESTROYED
		1614	CODE:
		1615	RETVAL = boolSV (coro->flags & ix);
		1616	OUTPUT:
		1617	RETVAL
		1618
		1619	void
		1620	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1621
		1622	SV *
		1623	has_stack (Coro::State coro)
		1624	PROTOTYPE: $
		1625	CODE:
		1626	RETVAL = boolSV (!!coro->cctx);
		1627	OUTPUT:
		1628	RETVAL
		1629
		1630	int
		1631	is_traced (Coro::State coro)
		1632	PROTOTYPE: $
		1633	CODE:
		1634	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1635	OUTPUT:
		1636	RETVAL
		1637
		1638	IV
		1639	rss (Coro::State coro)
		1640	PROTOTYPE: $
		1641	ALIAS:
		1642	usecount = 1
		1643	CODE:
		1644	switch (ix)
		1645	{
		1646	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1647	case 1: RETVAL = coro->usecount; break;
		1648	}
		1649	OUTPUT:
		1650	RETVAL
		1651
		1652
1326	MODULE = Coro::State PACKAGE = Coro	1653	MODULE = Coro::State PACKAGE = Coro
1327		1654
1328	BOOT:	1655	BOOT:
1329	{	1656	{
1330	int i;	1657	int i;
		1658
		1659	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1660	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1661	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1662
		1663	coro_current = get_sv ("Coro::current", FALSE);
		1664	SvREADONLY_on (coro_current);
1331		1665
1332	coro_stash = gv_stashpv ("Coro", TRUE);	1666	coro_stash = gv_stashpv ("Coro", TRUE);
1333		1667
1334	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1668	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1335	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1669	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1336	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1670	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1337	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1671	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1338	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1672	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1339	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1673	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1340		1674
1341	coro_current = get_sv ("Coro::current", FALSE);
1342	SvREADONLY_on (coro_current);
1343
1344	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1675	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1345	coro_ready[i] = newAV ();	1676	coro_ready[i] = newAV ();
1346		1677
1347	{	1678	{
1348	SV *sv = perl_get_sv("Coro::API", 1);	1679	SV *sv = perl_get_sv("Coro::API", 1);
1349		1680
1350	coroapi.schedule = api_schedule;	1681	coroapi.schedule = api_schedule;
1351	coroapi.save = api_save;
1352	coroapi.cede = api_cede;	1682	coroapi.cede = api_cede;
1353	coroapi.cede_notself = api_cede_notself;	1683	coroapi.cede_notself = api_cede_notself;
1354	coroapi.ready = api_ready;	1684	coroapi.ready = api_ready;
1355	coroapi.is_ready = api_is_ready;	1685	coroapi.is_ready = api_is_ready;
1356	coroapi.nready = &coro_nready;	1686	coroapi.nready = &coro_nready;
…		…
1397	CODE:	1727	CODE:
1398	RETVAL = boolSV (api_ready (self));	1728	RETVAL = boolSV (api_ready (self));
1399	OUTPUT:	1729	OUTPUT:
1400	RETVAL	1730	RETVAL
1401		1731
1402	SV *
1403	is_ready (SV *self)
1404	PROTOTYPE: $
1405	CODE:
1406	RETVAL = boolSV (api_is_ready (self));
1407	OUTPUT:
1408	RETVAL
1409
1410	int	1732	int
1411	nready (...)	1733	nready (...)
1412	PROTOTYPE:	1734	PROTOTYPE:
1413	CODE:	1735	CODE:
1414	RETVAL = coro_nready;	1736	RETVAL = coro_nready;
1415	OUTPUT:	1737	OUTPUT:
1416	RETVAL	1738	RETVAL
1417		1739
		1740	void
		1741	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1742	PROTOTYPE: $;$
		1743	CODE:
		1744	SvREFCNT_dec (self->throw);
		1745	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1746
		1747	# for async_pool speedup
		1748	void
		1749	_pool_1 (SV *cb)
		1750	CODE:
		1751	{
		1752	struct coro *coro = SvSTATE (coro_current);
		1753	HV hv = (HV )SvRV (coro_current);
		1754	AV *defav = GvAV (PL_defgv);
		1755	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1756	AV *invoke_av;
		1757	int i, len;
		1758
		1759	if (!invoke)
		1760	croak ("\3terminate\2\n");
		1761
		1762	SvREFCNT_dec (coro->saved_deffh);
		1763	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1764
		1765	hv_store (hv, "desc", sizeof ("desc") - 1,
		1766	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1767
		1768	invoke_av = (AV *)SvRV (invoke);
		1769	len = av_len (invoke_av);
		1770
		1771	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1772
		1773	if (len > 0)
		1774	{
		1775	av_fill (defav, len - 1);
		1776	for (i = 0; i < len; ++i)
		1777	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1778	}
		1779
		1780	SvREFCNT_dec (invoke);
		1781	}
		1782
		1783	void
		1784	_pool_2 (SV *cb)
		1785	CODE:
		1786	{
		1787	struct coro *coro = SvSTATE (coro_current);
		1788
		1789	sv_setsv (cb, &PL_sv_undef);
		1790
		1791	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1792	coro->saved_deffh = 0;
		1793
		1794	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1795	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1796	croak ("\3terminate\2\n");
		1797
		1798	av_clear (GvAV (PL_defgv));
		1799	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1800	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1801
		1802	coro->prio = 0;
		1803
		1804	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1805	api_trace (coro_current, 0);
		1806
		1807	av_push (av_async_pool, newSVsv (coro_current));
		1808	}
		1809
		1810
1418	MODULE = Coro::State PACKAGE = Coro::AIO	1811	MODULE = Coro::State PACKAGE = Coro::AIO
1419		1812
1420	SV *	1813	SV *
1421	_get_state ()	1814	_get_state ()
1422	CODE:	1815	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.149 by root, Sat Apr 14 15:06:05 2007 UTC vs. Revision 1.196 by root, Sat Oct 6 01:11:01 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.149 by root, Sat Apr 14 15:06:05 2007 UTC vs.
Revision 1.196 by root, Sat Oct 6 01:11:01 2007 UTC