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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.194 by root, Sat Oct 6 00:08:04 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
…		…
129	};	141	};
130		142
131	static size_t coro_stacksize = CORO_STACKSIZE;	143	static size_t coro_stacksize = CORO_STACKSIZE;
132	static struct CoroAPI coroapi;	144	static struct CoroAPI coroapi;
133	static AV main_mainstack; / used to differentiate between $main and others */	145	static AV main_mainstack; / used to differentiate between $main and others */
		146	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	147	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	148	static SV coro_mortal; / will be freed after next transfer */
136		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
137	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
138	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	};
139		169
140	/* this is a structure representing a c-level coroutine */	170	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	171	typedef struct coro_cctx {
142	struct coro_cctx *next;	172	struct coro_cctx *next;
143		173
…		…
152	coro_context cctx;	182	coro_context cctx;
153		183
154	#if CORO_USE_VALGRIND	184	#if CORO_USE_VALGRIND
155	int valgrind_id;	185	int valgrind_id;
156	#endif	186	#endif
157	char inuse, mapped;	187	unsigned char flags;
158	} coro_cctx;	188	} coro_cctx;
159		189
160	enum {	190	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	191	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	192	CF_READY = 0x0002, /* coroutine is ready */
…		…
170	coro_cctx *cctx;	200	coro_cctx *cctx;
171		201
172	/* data associated with this coroutine (initial args) */	202	/* data associated with this coroutine (initial args) */
173	AV *args;	203	AV *args;
174	int refcnt;	204	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	205	int flags; /* CF_ flags */
177		206
178	/* optionally saved, might be zero */	207	/* optionally saved, might be zero */
179	AV defav; / @_ */	208	AV defav; / @_ */
180	SV defsv; / $_ */	209	SV defsv; / $_ */
181	SV errsv; / $@ */	210	SV errsv; / $@ */
		211	SV deffh; / default filehandle */
182	SV irssv; / $/ */	212	SV irssv; / $/ */
183	SV irssv_sv; / real $/ cache */	213	SV irssv_sv; / real $/ cache */
184		214
185	#define VAR(name,type) type name;	215	#define VAR(name,type) type name;
186	# include "state.h"	216	# include "state.h"
187	#undef VAR	217	#undef VAR
188		218
		219	/* statistics */
		220	int usecount; /* number of transfers to this coro */
		221
189	/* coro process data */	222	/* coro process data */
190	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 */
191	};	232	};
192		233
193	typedef struct coro *Coro__State;	234	typedef struct coro *Coro__State;
194	typedef struct coro *Coro__State_or_hashref;	235	typedef struct coro *Coro__State_or_hashref;
195		236
…		…
204		245
205	/* for Coro.pm */	246	/* for Coro.pm */
206	static SV *coro_current;	247	static SV *coro_current;
207	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	248	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
208	static int coro_nready;	249	static int coro_nready;
		250	static struct coro *coro_first;
209		251
210	/ lowlevel stuff ********************************************************/	252	/ lowlevel stuff ********************************************************/
211		253
212	static AV *	254	static AV *
213	coro_clone_padlist (pTHX_ CV *cv)	255	coro_clone_padlist (pTHX_ CV *cv)
…		…
279	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
280	? SvMAGIC (cv) \	322	? SvMAGIC (cv) \
281	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
282	: 0	324	: 0
283		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
284	/* the next two functions merely cache the padlists */	352	/* the next two functions merely cache the padlists */
285	static void	353	static void
286	get_padlist (pTHX_ CV *cv)	354	get_padlist (pTHX_ CV *cv)
287	{	355	{
288	MAGIC *mg = CORO_MAGIC (cv);	356	MAGIC *mg = CORO_MAGIC (cv);
289	AV *av;	357	AV *av;
290		358
291	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
292	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
293	else	361	else
294	{	362	{
295	#if CORO_PREFER_PERL_FUNCTIONS	363	#if CORO_PREFER_PERL_FUNCTIONS
296	/* this is probably cleaner, but also slower? */	364	/* this is probably cleaner, but also slower? */
…		…
308	put_padlist (pTHX_ CV *cv)	376	put_padlist (pTHX_ CV *cv)
309	{	377	{
310	MAGIC *mg = CORO_MAGIC (cv);	378	MAGIC *mg = CORO_MAGIC (cv);
311	AV *av;	379	AV *av;
312		380
313	if (!mg)	381	if (expect_false (!mg))
314	{	382	{
315	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	383	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
316	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	384	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
317	mg->mg_virtual = &vtbl_coro;	385	mg->mg_virtual = &vtbl_coro;
318	mg->mg_obj = (SV *)newAV ();	386	mg->mg_obj = (SV *)newAV ();
319	}	387	}
320		388
321	av = (AV *)mg->mg_obj;	389	av = (AV *)mg->mg_obj;
322		390
323	if (AvFILLp (av) >= AvMAX (av))	391	if (expect_false (AvFILLp (av) >= AvMAX (av)))
324	av_extend (av, AvMAX (av) + 1);	392	av_extend (av, AvMAX (av) + 1);
325		393
326	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	394	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
327	}	395	}
328		396
329	/ load & save, init *****************************************************/	397	/ load & save, init *****************************************************/
330
331	#define SB do {
332	#define SE } while (0)
333
334	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
335		398
336	static void	399	static void
337	load_perl (pTHX_ Coro__State c)	400	load_perl (pTHX_ Coro__State c)
338	{	401	{
339	#define VAR(name,type) PL_ ## name = c->name;	402	#define VAR(name,type) PL_ ## name = c->name;
340	# include "state.h"	403	# include "state.h"
341	#undef VAR	404	#undef VAR
342		405
343	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	406	GvSV (PL_defgv) = c->defsv;
344	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	407	GvAV (PL_defgv) = c->defav;
345	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	408	GvSV (PL_errgv) = c->errsv;
346	if (c->irssv)	409	GvSV (irsgv) = c->irssv_sv;
347	{
348	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
349	SvREFCNT_dec (c->irssv);
350	else
351	{
352	REPLACE_SV (PL_rs, c->irssv);
353	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
354	sv_setsv (c->irssv_sv, PL_rs);
355	}
356	}
357		410
358	{	411	{
359	dSP;	412	dSP;
360	CV *cv;	413	CV *cv;
361		414
362	/* now do the ugly restore mess */	415	/* now do the ugly restore mess */
363	while ((cv = (CV *)POPs))	416	while (expect_true (cv = (CV *)POPs))
364	{	417	{
365	put_padlist (aTHX_ cv); /* mark this padlist as available */	418	put_padlist (aTHX_ cv); /* mark this padlist as available */
366	CvDEPTH (cv) = PTR2IV (POPs);	419	CvDEPTH (cv) = PTR2IV (POPs);
367	CvPADLIST (cv) = (AV *)POPs;	420	CvPADLIST (cv) = (AV *)POPs;
368	}	421	}
369		422
370	PUTBACK;	423	PUTBACK;
371	}	424	}
372	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
373	}	425	}
374		426
375	static void	427	static void
376	save_perl (pTHX_ Coro__State c)	428	save_perl (pTHX_ Coro__State c)
377	{	429	{
378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
379	{	430	{
380	dSP;	431	dSP;
381	I32 cxix = cxstack_ix;	432	I32 cxix = cxstack_ix;
382	PERL_CONTEXT *ccstk = cxstack;	433	PERL_CONTEXT *ccstk = cxstack;
383	PERL_SI *top_si = PL_curstackinfo;	434	PERL_SI *top_si = PL_curstackinfo;
…		…
385	/*	436	/*
386	* 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
387	* (and reinitialize) all cv's in the whole callchain :(	438	* (and reinitialize) all cv's in the whole callchain :(
388	*/	439	*/
389		440
390	EXTEND (SP, 3 + 1);
391	PUSHs (Nullsv);	441	XPUSHs (Nullsv);
392	/* this loop was inspired by pp_caller */	442	/* this loop was inspired by pp_caller */
393	for (;;)	443	for (;;)
394	{	444	{
395	while (cxix >= 0)	445	while (expect_true (cxix >= 0))
396	{	446	{
397	PERL_CONTEXT *cx = &ccstk[cxix--];	447	PERL_CONTEXT *cx = &ccstk[cxix--];
398		448
399	if (CxTYPE (cx) == CXt_SUB)	449	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
400	{	450	{
401	CV *cv = cx->blk_sub.cv;	451	CV *cv = cx->blk_sub.cv;
402		452
403	if (CvDEPTH (cv))	453	if (expect_true (CvDEPTH (cv)))
404	{	454	{
405	EXTEND (SP, 3);	455	EXTEND (SP, 3);
406	PUSHs ((SV *)CvPADLIST (cv));	456	PUSHs ((SV *)CvPADLIST (cv));
407	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
408	PUSHs ((SV *)cv);	458	PUSHs ((SV *)cv);
…		…
411	get_padlist (aTHX_ cv);	461	get_padlist (aTHX_ cv);
412	}	462	}
413	}	463	}
414	}	464	}
415		465
416	if (top_si->si_type == PERLSI_MAIN)	466	if (expect_true (top_si->si_type == PERLSI_MAIN))
417	break;	467	break;
418		468
419	top_si = top_si->si_prev;	469	top_si = top_si->si_prev;
420	ccstk = top_si->si_cxstack;	470	ccstk = top_si->si_cxstack;
421	cxix = top_si->si_cxix;	471	cxix = top_si->si_cxix;
422	}	472	}
423		473
424	PUTBACK;	474	PUTBACK;
425	}	475	}
426		476
427	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	477	c->defav = GvAV (PL_defgv);
428	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	478	c->defsv = DEFSV;
429	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	479	c->errsv = ERRSV;
430	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	480	c->irssv_sv = GvSV (irsgv);
431		481
432	#define VAR(name,type)c->name = PL_ ## name;	482	#define VAR(name,type)c->name = PL_ ## name;
433	# include "state.h"	483	# include "state.h"
434	#undef VAR	484	#undef VAR
435	}	485	}
…		…
444	# define coro_init_stacks init_stacks	494	# define coro_init_stacks init_stacks
445	#else	495	#else
446	static void	496	static void
447	coro_init_stacks (pTHX)	497	coro_init_stacks (pTHX)
448	{	498	{
449	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	499	PL_curstackinfo = new_stackinfo(64, 6);
450	PL_curstackinfo->si_type = PERLSI_MAIN;	500	PL_curstackinfo->si_type = PERLSI_MAIN;
451	PL_curstack = PL_curstackinfo->si_stack;	501	PL_curstack = PL_curstackinfo->si_stack;
452	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
453		503
454	PL_stack_base = AvARRAY(PL_curstack);	504	PL_stack_base = AvARRAY(PL_curstack);
455	PL_stack_sp = PL_stack_base;	505	PL_stack_sp = PL_stack_base;
456	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
457		507
458	New(50,PL_tmps_stack,128,SV*);	508	New(50,PL_tmps_stack,64,SV*);
459	PL_tmps_floor = -1;	509	PL_tmps_floor = -1;
460	PL_tmps_ix = -1;	510	PL_tmps_ix = -1;
461	PL_tmps_max = 128;	511	PL_tmps_max = 64;
462		512
463	New(54,PL_markstack,32,I32);	513	New(54,PL_markstack,16,I32);
464	PL_markstack_ptr = PL_markstack;	514	PL_markstack_ptr = PL_markstack;
465	PL_markstack_max = PL_markstack + 32;	515	PL_markstack_max = PL_markstack + 16;
466		516
467	#ifdef SET_MARK_OFFSET	517	#ifdef SET_MARK_OFFSET
468	SET_MARK_OFFSET;	518	SET_MARK_OFFSET;
469	#endif	519	#endif
470		520
471	New(54,PL_scopestack,32,I32);	521	New(54,PL_scopestack,16,I32);
472	PL_scopestack_ix = 0;	522	PL_scopestack_ix = 0;
473	PL_scopestack_max = 32;	523	PL_scopestack_max = 16;
474		524
475	New(54,PL_savestack,64,ANY);	525	New(54,PL_savestack,64,ANY);
476	PL_savestack_ix = 0;	526	PL_savestack_ix = 0;
477	PL_savestack_max = 64;	527	PL_savestack_max = 64;
478		528
479	#if !PERL_VERSION_ATLEAST (5,9,0)	529	#if !PERL_VERSION_ATLEAST (5,9,0)
480	New(54,PL_retstack,16,OP*);	530	New(54,PL_retstack,4,OP*);
481	PL_retstack_ix = 0;	531	PL_retstack_ix = 0;
482	PL_retstack_max = 16;	532	PL_retstack_max = 4;
483	#endif	533	#endif
484	}	534	}
485	#endif	535	#endif
486		536
487	/*	537	/*
488	* destroy the stacks, the callchain etc...	538	* destroy the stacks, the callchain etc...
489	*/	539	*/
490	static void	540	static void
491	coro_destroy_stacks (pTHX)	541	coro_destroy_stacks (pTHX)
492	{	542	{
493	if (!IN_DESTRUCT)
494	{
495	/* restore all saved variables and stuff */
496	LEAVE_SCOPE (0);
497	assert (PL_tmps_floor == -1);
498
499	/* free all temporaries */
500	FREETMPS;
501	assert (PL_tmps_ix == -1);
502
503	/* unwind all extra stacks */
504	POPSTACK_TO (PL_mainstack);
505
506	/* unwind main stack */
507	dounwind (-1);
508	}
509
510	while (PL_curstackinfo->si_next)	543	while (PL_curstackinfo->si_next)
511	PL_curstackinfo = PL_curstackinfo->si_next;	544	PL_curstackinfo = PL_curstackinfo->si_next;
512		545
513	while (PL_curstackinfo)	546	while (PL_curstackinfo)
514	{	547	{
…		…
529	#if !PERL_VERSION_ATLEAST (5,9,0)	562	#if !PERL_VERSION_ATLEAST (5,9,0)
530	Safefree (PL_retstack);	563	Safefree (PL_retstack);
531	#endif	564	#endif
532	}	565	}
533		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
534	/ coroutine stack handling **********************************************/	598	/ coroutine stack handling **********************************************/
535		599
536	static void	600	static void
537	setup_coro (pTHX_ struct coro *coro)	601	coro_setup (pTHX_ struct coro *coro)
538	{	602	{
539	/*	603	/*
540	* emulate part of the perl startup here.	604	* emulate part of the perl startup here.
541	*/	605	*/
542	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
543		607
		608	PL_runops = RUNOPS_DEFAULT;
544	PL_curcop = &PL_compiling;	609	PL_curcop = &PL_compiling;
545	PL_in_eval = EVAL_NULL;	610	PL_in_eval = EVAL_NULL;
546	PL_comppad = 0;	611	PL_comppad = 0;
547	PL_curpm = 0;	612	PL_curpm = 0;
548	PL_localizing = 0;	613	PL_localizing = 0;
549	PL_dirty = 0;	614	PL_dirty = 0;
550	PL_restartop = 0;	615	PL_restartop = 0;
		616
		617	GvSV (PL_defgv) = newSV (0);
		618	GvAV (PL_defgv) = coro->args; coro->args = 0;
		619	GvSV (PL_errgv) = newSV (0);
		620	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		621	PL_rs = newSVsv (GvSV (irsgv));
		622	PL_defoutgv = SvREFCNT_inc (stdoutgv);
		623
		624	ENTER; /* necessary e.g. for dounwind */
551		625
552	{	626	{
553	dSP;	627	dSP;
554	LOGOP myop;	628	LOGOP myop;
555		629
556	SvREFCNT_dec (GvAV (PL_defgv));
557	GvAV (PL_defgv) = coro->args; coro->args = 0;
558
559	Zero (&myop, 1, LOGOP);	630	Zero (&myop, 1, LOGOP);
560	myop.op_next = Nullop;	631	myop.op_next = Nullop;
561	myop.op_flags = OPf_WANT_VOID;	632	myop.op_flags = OPf_WANT_VOID;
562		633
563	PUSHMARK (SP);	634	PUSHMARK (SP);
564	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	635	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
565	PUTBACK;	636	PUTBACK;
566	PL_op = (OP *)&myop;	637	PL_op = (OP *)&myop;
567	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	638	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568	SPAGAIN;	639	SPAGAIN;
569	}	640	}
		641	}
570		642
571	ENTER; /* necessary e.g. for dounwind */	643	static void
		644	coro_destroy (pTHX_ struct coro *coro)
		645	{
		646	if (!IN_DESTRUCT)
		647	{
		648	/* restore all saved variables and stuff */
		649	LEAVE_SCOPE (0);
		650	assert (PL_tmps_floor == -1);
		651
		652	/* free all temporaries */
		653	FREETMPS;
		654	assert (PL_tmps_ix == -1);
		655
		656	/* unwind all extra stacks */
		657	POPSTACK_TO (PL_mainstack);
		658
		659	/* unwind main stack */
		660	dounwind (-1);
		661	}
		662
		663	SvREFCNT_dec (GvSV (PL_defgv));
		664	SvREFCNT_dec (GvAV (PL_defgv));
		665	SvREFCNT_dec (GvSV (PL_errgv));
		666	SvREFCNT_dec (PL_defoutgv);
		667	SvREFCNT_dec (PL_rs);
		668	SvREFCNT_dec (GvSV (irsgv));
		669
		670	SvREFCNT_dec (coro->saved_deffh);
		671	//SvREFCNT_dec (coro->throw);
		672
		673	coro_destroy_stacks (aTHX);
572	}	674	}
573		675
574	static void	676	static void
575	free_coro_mortal (pTHX)	677	free_coro_mortal (pTHX)
576	{	678	{
577	if (coro_mortal)	679	if (expect_true (coro_mortal))
578	{	680	{
579	SvREFCNT_dec (coro_mortal);	681	SvREFCNT_dec (coro_mortal);
580	coro_mortal = 0;	682	coro_mortal = 0;
581	}	683	}
582	}	684	}
583		685
		686	static int
		687	runops_trace (pTHX)
		688	{
		689	COP *oldcop = 0;
		690	int oldcxix = -2;
		691	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		692	coro_cctx *cctx = coro->cctx;
		693
		694	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		695	{
		696	PERL_ASYNC_CHECK ();
		697
		698	if (cctx->flags & CC_TRACE_ALL)
		699	{
		700	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		701	{
		702	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		703	SV bot, top;
		704	AV av = newAV (); / return values */
		705	SV **cb;
		706	dSP;
		707
		708	GV *gv = CvGV (cx->blk_sub.cv);
		709	SV *fullname = sv_2mortal (newSV (0));
		710	if (isGV (gv))
		711	gv_efullname3 (fullname, gv, 0);
		712
		713	bot = PL_stack_base + cx->blk_oldsp + 1;
		714	top = cx->blk_gimme == G_ARRAY ? SP + 1
		715	: cx->blk_gimme == G_SCALAR ? bot + 1
		716	: bot;
		717
		718	av_extend (av, top - bot);
		719	while (bot < top)
		720	av_push (av, SvREFCNT_inc (*bot++));
		721
		722	PL_runops = RUNOPS_DEFAULT;
		723	ENTER;
		724	SAVETMPS;
		725	EXTEND (SP, 3);
		726	PUSHMARK (SP);
		727	PUSHs (&PL_sv_no);
		728	PUSHs (fullname);
		729	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		730	PUTBACK;
		731	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		732	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		733	SPAGAIN;
		734	FREETMPS;
		735	LEAVE;
		736	PL_runops = runops_trace;
		737	}
		738
		739	if (oldcop != PL_curcop)
		740	{
		741	oldcop = PL_curcop;
		742
		743	if (PL_curcop != &PL_compiling)
		744	{
		745	SV **cb;
		746
		747	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		748	{
		749	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		750
		751	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		752	{
		753	runops_proc_t old_runops = PL_runops;
		754	dSP;
		755	GV *gv = CvGV (cx->blk_sub.cv);
		756	SV *fullname = sv_2mortal (newSV (0));
		757
		758	if (isGV (gv))
		759	gv_efullname3 (fullname, gv, 0);
		760
		761	PL_runops = RUNOPS_DEFAULT;
		762	ENTER;
		763	SAVETMPS;
		764	EXTEND (SP, 3);
		765	PUSHMARK (SP);
		766	PUSHs (&PL_sv_yes);
		767	PUSHs (fullname);
		768	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		769	PUTBACK;
		770	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		771	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		772	SPAGAIN;
		773	FREETMPS;
		774	LEAVE;
		775	PL_runops = runops_trace;
		776	}
		777
		778	oldcxix = cxstack_ix;
		779	}
		780
		781	if (cctx->flags & CC_TRACE_LINE)
		782	{
		783	dSP;
		784
		785	PL_runops = RUNOPS_DEFAULT;
		786	ENTER;
		787	SAVETMPS;
		788	EXTEND (SP, 3);
		789	PL_runops = RUNOPS_DEFAULT;
		790	PUSHMARK (SP);
		791	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		792	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		793	PUTBACK;
		794	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		795	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		796	SPAGAIN;
		797	FREETMPS;
		798	LEAVE;
		799	PL_runops = runops_trace;
		800	}
		801	}
		802	}
		803	}
		804	}
		805
		806	TAINT_NOT;
		807	return 0;
		808	}
		809
584	/* inject a fake call to Coro::State::_cctx_init into the execution */	810	/* inject a fake call to Coro::State::_cctx_init into the execution */
		811	/* _cctx_init should be careful, as it could be called at almost any time */
		812	/* during execution of a perl program */
585	static void NOINLINE	813	static void NOINLINE
586	prepare_cctx (pTHX_ coro_cctx *cctx)	814	prepare_cctx (pTHX_ coro_cctx *cctx)
587	{	815	{
588	dSP;	816	dSP;
589	LOGOP myop;	817	LOGOP myop;
		818
		819	PL_top_env = &PL_start_env;
		820
		821	if (cctx->flags & CC_TRACE)
		822	PL_runops = runops_trace;
590		823
591	Zero (&myop, 1, LOGOP);	824	Zero (&myop, 1, LOGOP);
592	myop.op_next = PL_op;	825	myop.op_next = PL_op;
593	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	826	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
594		827
…		…
600	PL_op = (OP *)&myop;	833	PL_op = (OP *)&myop;
601	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	834	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
602	SPAGAIN;	835	SPAGAIN;
603	}	836	}
604		837
		838	/*
		839	* this is a _very_ stripped down perl interpreter ;)
		840	*/
605	static void	841	static void
606	coro_run (void *arg)	842	coro_run (void *arg)
607	{	843	{
608	dTHX;	844	dTHX;
609		845
610	/* coro_run is the alternative tail of transfer(), so unlock here. */	846	/* coro_run is the alternative tail of transfer(), so unlock here. */
611	UNLOCK;	847	UNLOCK;
612		848
613	/*	849	/* we now skip the entersub that lead to transfer() */
614	* this is a _very_ stripped down perl interpreter ;)	850	PL_op = PL_op->op_next;
615	*/
616	PL_top_env = &PL_start_env;
617		851
618	/* inject call to cctx_init */	852	/* inject a fake subroutine call to cctx_init */
619	prepare_cctx (aTHX_ (coro_cctx *)arg);	853	prepare_cctx (aTHX_ (coro_cctx *)arg);
620		854
621	/* somebody will hit me for both perl_run and PL_restartop */	855	/* somebody or something will hit me for both perl_run and PL_restartop */
622	PL_restartop = PL_op;	856	PL_restartop = PL_op;
623	perl_run (PL_curinterp);	857	perl_run (PL_curinterp);
624		858
625	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	859	/*
626	abort ();	860	* If perl-run returns we assume exit() was being called or the coro
		861	* fell off the end, which seems to be the only valid (non-bug)
		862	* reason for perl_run to return. We try to exit by jumping to the
		863	* bootstrap-time "top" top_env, as we cannot restore the "main"
		864	* coroutine as Coro has no such concept
		865	*/
		866	PL_top_env = main_top_env;
		867	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
627	}	868	}
628		869
629	static coro_cctx *	870	static coro_cctx *
630	cctx_new ()	871	cctx_new ()
631	{	872	{
…		…
648	# if CORO_STACKGUARD	889	# if CORO_STACKGUARD
649	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	890	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
650	# endif	891	# endif
651	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	892	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
652	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	893	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
653	cctx->mapped = 1;	894	cctx->flags \|= CC_MAPPED;
654	}	895	}
655	else	896	else
656	#endif	897	#endif
657	{	898	{
658	cctx->ssize = coro_stacksize * (long)sizeof (long);	899	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
685	#if CORO_USE_VALGRIND	926	#if CORO_USE_VALGRIND
686	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	927	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
687	#endif	928	#endif
688		929
689	#if HAVE_MMAP	930	#if HAVE_MMAP
690	if (cctx->mapped)	931	if (cctx->flags & CC_MAPPED)
691	munmap (cctx->sptr, cctx->ssize);	932	munmap (cctx->sptr, cctx->ssize);
692	else	933	else
693	#endif	934	#endif
694	Safefree (cctx->sptr);	935	Safefree (cctx->sptr);
695		936
696	Safefree (cctx);	937	Safefree (cctx);
697	}	938	}
698		939
		940	/* wether this cctx should be destructed */
		941	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		942
699	static coro_cctx *	943	static coro_cctx *
700	cctx_get (pTHX)	944	cctx_get (pTHX)
701	{	945	{
702	while (cctx_first)	946	while (expect_true (cctx_first))
703	{	947	{
704	coro_cctx *cctx = cctx_first;	948	coro_cctx *cctx = cctx_first;
705	cctx_first = cctx->next;	949	cctx_first = cctx->next;
706	--cctx_idle;	950	--cctx_idle;
707		951
708	if (cctx->ssize >= coro_stacksize)	952	if (expect_true (!CCTX_EXPIRED (cctx)))
709	return cctx;	953	return cctx;
710		954
711	cctx_destroy (cctx);	955	cctx_destroy (cctx);
712	}	956	}
713		957
714	PL_op = PL_op->op_next;
715	return cctx_new ();	958	return cctx_new ();
716	}	959	}
717		960
718	static void	961	static void
719	cctx_put (coro_cctx *cctx)	962	cctx_put (coro_cctx *cctx)
720	{	963	{
721	/* free another cctx if overlimit */	964	/* free another cctx if overlimit */
722	if (cctx_idle >= MAX_IDLE_CCTX)	965	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
723	{	966	{
724	coro_cctx *first = cctx_first;	967	coro_cctx *first = cctx_first;
725	cctx_first = first->next;	968	cctx_first = first->next;
726	--cctx_idle;	969	--cctx_idle;
727		970
728	assert (!first->inuse);
729	cctx_destroy (first);	971	cctx_destroy (first);
730	}	972	}
731		973
732	++cctx_idle;	974	++cctx_idle;
733	cctx->next = cctx_first;	975	cctx->next = cctx_first;
734	cctx_first = cctx;	976	cctx_first = cctx;
735	}	977	}
736		978
737	/ coroutine switching ***************************************************/	979	/ coroutine switching ***************************************************/
738		980
739	/* never call directly, always through the coro_state_transfer global variable */	981	static void
		982	transfer_check (pTHX_ struct coro prev, struct coro next)
		983	{
		984	if (expect_true (prev != next))
		985	{
		986	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		987	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		988
		989	if (expect_false (next->flags & CF_RUNNING))
		990	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		991
		992	if (expect_false (next->flags & CF_DESTROYED))
		993	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		994
		995	if (expect_false (PL_lex_state != LEX_NOTPARSING))
		996	croak ("Coro::State::transfer called while parsing, but this is not supported");
		997	}
		998	}
		999
		1000	/* always use the TRANSFER macro */
740	static void NOINLINE	1001	static void NOINLINE
741	transfer (pTHX_ struct coro prev, struct coro next)	1002	transfer (pTHX_ struct coro prev, struct coro next)
742	{	1003	{
743	dSTACKLEVEL;	1004	dSTACKLEVEL;
744		1005
745	/* sometimes transfer is only called to set idle_sp */	1006	/* sometimes transfer is only called to set idle_sp */
746	if (!next)	1007	if (expect_false (!next))
747	{	1008	{
748	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1009	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
749	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1010	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
750	}	1011	}
751	else if (prev != next)	1012	else if (expect_true (prev != next))
752	{	1013	{
753	coro_cctx *prev__cctx;	1014	coro_cctx *prev__cctx;
754		1015
755	if (prev->flags & CF_NEW)	1016	if (expect_false (prev->flags & CF_NEW))
756	{	1017	{
757	/* create a new empty context */	1018	/* create a new empty context */
758	Newz (0, prev->cctx, 1, coro_cctx);	1019	Newz (0, prev->cctx, 1, coro_cctx);
759	prev->cctx->inuse = 1;
760	prev->flags &= ~CF_NEW;	1020	prev->flags &= ~CF_NEW;
761	prev->flags \|= CF_RUNNING;	1021	prev->flags \|= CF_RUNNING;
762	}	1022	}
763		1023
764	/TODO: must not croak here /
765	if (!prev->flags & CF_RUNNING)
766	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
767
768	if (next->flags & CF_RUNNING)
769	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
770
771	if (next->flags & CF_DESTROYED)
772	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
773
774	prev->flags &= ~CF_RUNNING;	1024	prev->flags &= ~CF_RUNNING;
775	next->flags \|= CF_RUNNING;	1025	next->flags \|= CF_RUNNING;
776		1026
777	LOCK;	1027	LOCK;
778		1028
779	if (next->flags & CF_NEW)	1029	if (expect_false (next->flags & CF_NEW))
780	{	1030	{
781	/* need to start coroutine */	1031	/* need to start coroutine */
782	next->flags &= ~CF_NEW;	1032	next->flags &= ~CF_NEW;
783	/* first get rid of the old state */	1033	/* first get rid of the old state */
784	save_perl (aTHX_ prev);	1034	save_perl (aTHX_ prev);
785	/* setup coroutine call */	1035	/* setup coroutine call */
786	setup_coro (aTHX_ next);	1036	coro_setup (aTHX_ next);
787	/* need a new stack */
788	assert (!next->cctx);
789	}	1037	}
790	else	1038	else
791	{	1039	{
792	/* coroutine already started */	1040	/* coroutine already started */
793	save_perl (aTHX_ prev);	1041	save_perl (aTHX_ prev);
…		…
795	}	1043	}
796		1044
797	prev__cctx = prev->cctx;	1045	prev__cctx = prev->cctx;
798		1046
799	/* possibly "free" the cctx */	1047	/* possibly "free" the cctx */
800	if (prev__cctx->idle_sp == STACKLEVEL)	1048	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
801	{	1049	{
802	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1050	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
803	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1051	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
804		1052
805	prev->cctx = 0;	1053	prev->cctx = 0;
806		1054
		1055	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1056	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1057	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1058	next->cctx = cctx_get (aTHX);
		1059
807	cctx_put (prev__cctx);	1060	cctx_put (prev__cctx);
808	prev__cctx->inuse = 0;
809	}	1061	}
810		1062
		1063	++next->usecount;
		1064
811	if (!next->cctx)	1065	if (expect_true (!next->cctx))
812	{
813	next->cctx = cctx_get (aTHX);	1066	next->cctx = cctx_get (aTHX);
814	assert (!next->cctx->inuse);
815	next->cctx->inuse = 1;
816	}
817		1067
818	if (prev__cctx != next->cctx)	1068	if (expect_false (prev__cctx != next->cctx))
819	{	1069	{
820	prev__cctx->top_env = PL_top_env;	1070	prev__cctx->top_env = PL_top_env;
821	PL_top_env = next->cctx->top_env;	1071	PL_top_env = next->cctx->top_env;
822	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1072	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
823	}	1073	}
…		…
831	{	1081	{
832	struct coro prev, next;	1082	struct coro prev, next;
833	};	1083	};
834		1084
835	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1085	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1086	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
836		1087
837	/ high level stuff ******************************************************/	1088	/ high level stuff ******************************************************/
838		1089
839	static int	1090	static int
840	coro_state_destroy (pTHX_ struct coro *coro)	1091	coro_state_destroy (pTHX_ struct coro *coro)
…		…
857		1108
858	if (coro->mainstack && coro->mainstack != main_mainstack)	1109	if (coro->mainstack && coro->mainstack != main_mainstack)
859	{	1110	{
860	struct coro temp;	1111	struct coro temp;
861		1112
862	assert (!(coro->flags & CF_RUNNING));
863
864	Zero (&temp, 1, struct coro);
865	temp.save = CORO_SAVE_ALL;
866
867	if (coro->flags & CF_RUNNING)	1113	if (coro->flags & CF_RUNNING)
868	croak ("FATAL: tried to destroy currently running coroutine");	1114	croak ("FATAL: tried to destroy currently running coroutine");
869		1115
870	save_perl (aTHX_ &temp);	1116	save_perl (aTHX_ &temp);
871	load_perl (aTHX_ coro);	1117	load_perl (aTHX_ coro);
872		1118
873	coro_destroy_stacks (aTHX);	1119	coro_destroy (aTHX_ coro);
874		1120
875	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1121	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
876		1122
877	coro->mainstack = 0;	1123	coro->mainstack = 0;
878	}	1124	}
879		1125
880	cctx_destroy (coro->cctx);	1126	cctx_destroy (coro->cctx);
881	SvREFCNT_dec (coro->args);	1127	SvREFCNT_dec (coro->args);
882		1128
		1129	if (coro->next) coro->next->prev = coro->prev;
		1130	if (coro->prev) coro->prev->next = coro->next;
		1131	if (coro == coro_first) coro_first = coro->next;
		1132
883	return 1;	1133	return 1;
884	}	1134	}
885		1135
886	static int	1136	static int
887	coro_state_free (pTHX_ SV sv, MAGIC mg)	1137	coro_state_free (pTHX_ SV sv, MAGIC mg)
888	{	1138	{
889	struct coro coro = (struct coro )mg->mg_ptr;	1139	struct coro coro = (struct coro )mg->mg_ptr;
890	mg->mg_ptr = 0;	1140	mg->mg_ptr = 0;
		1141
		1142	coro->hv = 0;
891		1143
892	if (--coro->refcnt < 0)	1144	if (--coro->refcnt < 0)
893	{	1145	{
894	coro_state_destroy (aTHX_ coro);	1146	coro_state_destroy (aTHX_ coro);
895	Safefree (coro);	1147	Safefree (coro);
…		…
917	#else	1169	#else
918	# define MGf_DUP 0	1170	# define MGf_DUP 0
919	#endif	1171	#endif
920	};	1172	};
921		1173
922	static struct coro *
923	SvSTATE_ (pTHX_ SV *coro)
924	{
925	HV *stash;
926	MAGIC *mg;
927
928	if (SvROK (coro))
929	coro = SvRV (coro);
930
931	stash = SvSTASH (coro);
932	if (stash != coro_stash && stash != coro_state_stash)
933	{
934	/* very slow, but rare, check */
935	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
936	croak ("Coro::State object required");
937	}
938
939	mg = CORO_MAGIC (coro);
940	return (struct coro *)mg->mg_ptr;
941	}
942
943	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
944
945	static void	1174	static void
946	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1175	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
947	{	1176	{
948	ta->prev = SvSTATE (prev_sv);	1177	ta->prev = SvSTATE (prev_sv);
949	ta->next = SvSTATE (next_sv);	1178	ta->next = SvSTATE (next_sv);
		1179	TRANSFER_CHECK (*ta);
950	}	1180	}
951		1181
952	static void	1182	static void
953	api_transfer (SV prev_sv, SV next_sv)	1183	api_transfer (SV prev_sv, SV next_sv)
954	{	1184	{
955	dTHX;	1185	dTHX;
956	struct transfer_args ta;	1186	struct transfer_args ta;
957		1187
958	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1188	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
959	TRANSFER (ta);	1189	TRANSFER (ta);
960	}
961
962	static int
963	api_save (SV *coro_sv, int new_save)
964	{
965	dTHX;
966	struct coro *coro = SvSTATE (coro_sv);
967	int old_save = coro->save;
968
969	if (new_save >= 0)
970	coro->save = new_save;
971
972	return old_save;
973	}	1190	}
974		1191
975	/ Coro ******************************************************************/	1192	/ Coro ******************************************************************/
976		1193
977	static void	1194	static void
…		…
1036	{	1253	{
1037	LOCK;	1254	LOCK;
1038	next_sv = coro_deq (aTHX_ PRIO_MIN);	1255	next_sv = coro_deq (aTHX_ PRIO_MIN);
1039		1256
1040	/* nothing to schedule: call the idle handler */	1257	/* nothing to schedule: call the idle handler */
1041	if (!next_sv)	1258	if (expect_false (!next_sv))
1042	{	1259	{
1043	dSP;	1260	dSP;
1044	UNLOCK;	1261	UNLOCK;
1045		1262
1046	ENTER;	1263	ENTER;
…		…
1056	}	1273	}
1057		1274
1058	ta->next = SvSTATE (next_sv);	1275	ta->next = SvSTATE (next_sv);
1059		1276
1060	/* cannot transfer to destroyed coros, skip and look for next */	1277	/* cannot transfer to destroyed coros, skip and look for next */
1061	if (ta->next->flags & CF_DESTROYED)	1278	if (expect_false (ta->next->flags & CF_DESTROYED))
1062	{	1279	{
1063	UNLOCK;	1280	UNLOCK;
1064	SvREFCNT_dec (next_sv);	1281	SvREFCNT_dec (next_sv);
1065	/* coro_nready is already taken care of by destroy */	1282	/* coro_nready is already taken care of by destroy */
1066	continue;	1283	continue;
…		…
1071	break;	1288	break;
1072	}	1289	}
1073		1290
1074	/* free this only after the transfer */	1291	/* free this only after the transfer */
1075	prev_sv = SvRV (coro_current);	1292	prev_sv = SvRV (coro_current);
1076	SvRV_set (coro_current, next_sv);
1077	ta->prev = SvSTATE (prev_sv);	1293	ta->prev = SvSTATE (prev_sv);
1078		1294	TRANSFER_CHECK (*ta);
1079	assert (ta->next->flags & CF_READY);	1295	assert (ta->next->flags & CF_READY);
1080	ta->next->flags &= ~CF_READY;	1296	ta->next->flags &= ~CF_READY;
		1297	SvRV_set (coro_current, next_sv);
1081		1298
1082	LOCK;	1299	LOCK;
1083	free_coro_mortal (aTHX);	1300	free_coro_mortal (aTHX);
1084	coro_mortal = prev_sv;	1301	coro_mortal = prev_sv;
1085	UNLOCK;	1302	UNLOCK;
…		…
1122	dTHX;	1339	dTHX;
1123	struct transfer_args ta;	1340	struct transfer_args ta;
1124		1341
1125	prepare_cede (aTHX_ &ta);	1342	prepare_cede (aTHX_ &ta);
1126		1343
1127	if (ta.prev != ta.next)	1344	if (expect_true (ta.prev != ta.next))
1128	{	1345	{
1129	TRANSFER (ta);	1346	TRANSFER (ta);
1130	return 1;	1347	return 1;
1131	}	1348	}
1132	else	1349	else
…		…
1146	}	1363	}
1147	else	1364	else
1148	return 0;	1365	return 0;
1149	}	1366	}
1150		1367
		1368	static void
		1369	api_trace (SV *coro_sv, int flags)
		1370	{
		1371	dTHX;
		1372	struct coro *coro = SvSTATE (coro_sv);
		1373
		1374	if (flags & CC_TRACE)
		1375	{
		1376	if (!coro->cctx)
		1377	coro->cctx = cctx_new ();
		1378	else if (!(coro->cctx->flags & CC_TRACE))
		1379	croak ("cannot enable tracing on coroutine with custom stack");
		1380
		1381	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1382	}
		1383	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1384	{
		1385	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1386
		1387	if (coro->flags & CF_RUNNING)
		1388	PL_runops = RUNOPS_DEFAULT;
		1389	else
		1390	coro->runops = RUNOPS_DEFAULT;
		1391	}
		1392	}
		1393
1151	MODULE = Coro::State PACKAGE = Coro::State	1394	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1152		1395
1153	PROTOTYPES: DISABLE	1396	PROTOTYPES: DISABLE
1154		1397
1155	BOOT:	1398	BOOT:
1156	{	1399	{
1157	#ifdef USE_ITHREADS	1400	#ifdef USE_ITHREADS
1158	MUTEX_INIT (&coro_mutex);	1401	MUTEX_INIT (&coro_mutex);
1159	#endif	1402	#endif
1160	BOOT_PAGESIZE;	1403	BOOT_PAGESIZE;
1161		1404
		1405	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1406	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1407
1162	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1408	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1163		1409
		1410	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1411	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1164	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1412	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1165	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1166	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1167	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1168	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1413	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1169		1414
1170	main_mainstack = PL_mainstack;	1415	main_mainstack = PL_mainstack;
		1416	main_top_env = PL_top_env;
		1417
		1418	while (main_top_env->je_prev)
		1419	main_top_env = main_top_env->je_prev;
1171		1420
1172	coroapi.ver = CORO_API_VERSION;	1421	coroapi.ver = CORO_API_VERSION;
1173	coroapi.transfer = api_transfer;	1422	coroapi.transfer = api_transfer;
1174		1423
1175	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1424	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1182	struct coro *coro;	1431	struct coro *coro;
1183	HV *hv;	1432	HV *hv;
1184	int i;	1433	int i;
1185		1434
1186	Newz (0, coro, 1, struct coro);	1435	Newz (0, coro, 1, struct coro);
1187	coro->args = newAV ();	1436	coro->args = newAV ();
1188	coro->save = CORO_SAVE_ALL;
1189	coro->flags = CF_NEW;	1437	coro->flags = CF_NEW;
1190		1438
		1439	if (coro_first) coro_first->prev = coro;
		1440	coro->next = coro_first;
		1441	coro_first = coro;
		1442
1191	hv = newHV ();	1443	coro->hv = hv = newHV ();
1192	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1444	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1193	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1445	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1194		1446
		1447	av_extend (coro->args, items - 1);
1195	for (i = 1; i < items; i++)	1448	for (i = 1; i < items; i++)
1196	av_push (coro->args, newSVsv (ST (i)));	1449	av_push (coro->args, newSVsv (ST (i)));
1197	}	1450	}
1198	OUTPUT:	1451	OUTPUT:
1199	RETVAL	1452	RETVAL
1200		1453
1201	int	1454	# these not obviously related functions are all rolled into the same xs
1202	save (SV *coro, int new_save = -1)	1455	# function to increase chances that they all will call transfer with the same
1203	CODE:	1456	# stack offset
1204	RETVAL = api_save (coro, new_save);
1205	OUTPUT:
1206	RETVAL
1207
1208	void	1457	void
1209	_set_stacklevel (...)	1458	_set_stacklevel (...)
1210	ALIAS:	1459	ALIAS:
1211	Coro::State::transfer = 1	1460	Coro::State::transfer = 1
1212	Coro::schedule = 2	1461	Coro::schedule = 2
…		…
1246	}	1495	}
1247		1496
1248	BARRIER;	1497	BARRIER;
1249	TRANSFER (ta);	1498	TRANSFER (ta);
1250		1499
1251	if (GIMME_V != G_VOID && ta.next != ta.prev)	1500	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1252	XSRETURN_YES;	1501	XSRETURN_YES;
1253	}	1502	}
1254		1503
1255	bool	1504	bool
1256	_destroy (SV *coro_sv)	1505	_destroy (SV *coro_sv)
…		…
1287	CODE:	1536	CODE:
1288	RETVAL = cctx_idle;	1537	RETVAL = cctx_idle;
1289	OUTPUT:	1538	OUTPUT:
1290	RETVAL	1539	RETVAL
1291		1540
		1541	void
		1542	list ()
		1543	PPCODE:
		1544	{
		1545	struct coro *coro;
		1546	for (coro = coro_first; coro; coro = coro->next)
		1547	if (coro->hv)
		1548	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1549	}
		1550
		1551	void
		1552	call (Coro::State coro, SV *coderef)
		1553	ALIAS:
		1554	eval = 1
		1555	CODE:
		1556	{
		1557	if (coro->mainstack)
		1558	{
		1559	struct coro temp;
		1560	Zero (&temp, 1, struct coro);
		1561
		1562	if (!(coro->flags & CF_RUNNING))
		1563	{
		1564	save_perl (aTHX_ &temp);
		1565	load_perl (aTHX_ coro);
		1566	}
		1567
		1568	{
		1569	dSP;
		1570	ENTER;
		1571	SAVETMPS;
		1572	PUSHMARK (SP);
		1573	PUTBACK;
		1574	if (ix)
		1575	eval_sv (coderef, 0);
		1576	else
		1577	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1578	SPAGAIN;
		1579	FREETMPS;
		1580	LEAVE;
		1581	PUTBACK;
		1582	}
		1583
		1584	if (!(coro->flags & CF_RUNNING))
		1585	{
		1586	save_perl (aTHX_ coro);
		1587	load_perl (aTHX_ &temp);
		1588	}
		1589	}
		1590	}
		1591
		1592	SV *
		1593	is_ready (Coro::State coro)
		1594	PROTOTYPE: $
		1595	ALIAS:
		1596	is_ready = CF_READY
		1597	is_running = CF_RUNNING
		1598	is_new = CF_NEW
		1599	is_destroyed = CF_DESTROYED
		1600	CODE:
		1601	RETVAL = boolSV (coro->flags & ix);
		1602	OUTPUT:
		1603	RETVAL
		1604
		1605	void
		1606	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1607
		1608	SV *
		1609	has_stack (Coro::State coro)
		1610	PROTOTYPE: $
		1611	CODE:
		1612	RETVAL = boolSV (!!coro->cctx);
		1613	OUTPUT:
		1614	RETVAL
		1615
		1616	int
		1617	is_traced (Coro::State coro)
		1618	PROTOTYPE: $
		1619	CODE:
		1620	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1621	OUTPUT:
		1622	RETVAL
		1623
		1624	IV
		1625	rss (Coro::State coro)
		1626	PROTOTYPE: $
		1627	ALIAS:
		1628	usecount = 1
		1629	CODE:
		1630	switch (ix)
		1631	{
		1632	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1633	case 1: RETVAL = coro->usecount; break;
		1634	}
		1635	OUTPUT:
		1636	RETVAL
		1637
		1638
1292	MODULE = Coro::State PACKAGE = Coro	1639	MODULE = Coro::State PACKAGE = Coro
1293		1640
1294	BOOT:	1641	BOOT:
1295	{	1642	{
1296	int i;	1643	int i;
		1644
		1645	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1646	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1647	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1648
		1649	coro_current = get_sv ("Coro::current", FALSE);
		1650	SvREADONLY_on (coro_current);
1297		1651
1298	coro_stash = gv_stashpv ("Coro", TRUE);	1652	coro_stash = gv_stashpv ("Coro", TRUE);
1299		1653
1300	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1654	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1301	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1655	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1302	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1656	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1303	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1657	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1304	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1658	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1305	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1659	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1306		1660
1307	coro_current = get_sv ("Coro::current", FALSE);
1308	SvREADONLY_on (coro_current);
1309
1310	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1661	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1311	coro_ready[i] = newAV ();	1662	coro_ready[i] = newAV ();
1312		1663
1313	{	1664	{
1314	SV *sv = perl_get_sv("Coro::API", 1);	1665	SV *sv = perl_get_sv("Coro::API", 1);
1315		1666
1316	coroapi.schedule = api_schedule;	1667	coroapi.schedule = api_schedule;
1317	coroapi.save = api_save;
1318	coroapi.cede = api_cede;	1668	coroapi.cede = api_cede;
1319	coroapi.cede_notself = api_cede_notself;	1669	coroapi.cede_notself = api_cede_notself;
1320	coroapi.ready = api_ready;	1670	coroapi.ready = api_ready;
1321	coroapi.is_ready = api_is_ready;	1671	coroapi.is_ready = api_is_ready;
1322	coroapi.nready = &coro_nready;	1672	coroapi.nready = &coro_nready;
…		…
1363	CODE:	1713	CODE:
1364	RETVAL = boolSV (api_ready (self));	1714	RETVAL = boolSV (api_ready (self));
1365	OUTPUT:	1715	OUTPUT:
1366	RETVAL	1716	RETVAL
1367		1717
1368	SV *
1369	is_ready (SV *self)
1370	PROTOTYPE: $
1371	CODE:
1372	RETVAL = boolSV (api_is_ready (self));
1373	OUTPUT:
1374	RETVAL
1375
1376	int	1718	int
1377	nready (...)	1719	nready (...)
1378	PROTOTYPE:	1720	PROTOTYPE:
1379	CODE:	1721	CODE:
1380	RETVAL = coro_nready;	1722	RETVAL = coro_nready;
1381	OUTPUT:	1723	OUTPUT:
1382	RETVAL	1724	RETVAL
1383		1725
		1726	# for async_pool speedup
		1727	void
		1728	_pool_1 (SV *cb)
		1729	CODE:
		1730	{
		1731	struct coro *coro = SvSTATE (coro_current);
		1732	HV hv = (HV )SvRV (coro_current);
		1733	AV *defav = GvAV (PL_defgv);
		1734	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1735	AV *invoke_av;
		1736	int i, len;
		1737
		1738	if (!invoke)
		1739	croak ("\3terminate\2\n");
		1740
		1741	SvREFCNT_dec (coro->saved_deffh);
		1742	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1743
		1744	hv_store (hv, "desc", sizeof ("desc") - 1,
		1745	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1746
		1747	invoke_av = (AV *)SvRV (invoke);
		1748	len = av_len (invoke_av);
		1749
		1750	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1751
		1752	if (len > 0)
		1753	{
		1754	av_fill (defav, len - 1);
		1755	for (i = 0; i < len; ++i)
		1756	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1757	}
		1758
		1759	SvREFCNT_dec (invoke);
		1760	}
		1761
		1762	void
		1763	_pool_2 (SV *cb)
		1764	CODE:
		1765	{
		1766	struct coro *coro = SvSTATE (coro_current);
		1767
		1768	sv_setsv (cb, &PL_sv_undef);
		1769
		1770	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1771	coro->saved_deffh = 0;
		1772
		1773	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1774	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1775	croak ("\3terminate\2\n");
		1776
		1777	av_clear (GvAV (PL_defgv));
		1778	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1779	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1780
		1781	coro->prio = 0;
		1782
		1783	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1784	api_trace (coro_current, 0);
		1785
		1786	av_push (av_async_pool, newSVsv (coro_current));
		1787	}
		1788
		1789
1384	MODULE = Coro::State PACKAGE = Coro::AIO	1790	MODULE = Coro::State PACKAGE = Coro::AIO
1385		1791
1386	SV *	1792	SV *
1387	_get_state ()	1793	_get_state ()
1388	CODE:	1794	CODE:

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs. Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC