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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.175 by root, Sun Sep 30 13:43:45 2007 UTC vs.
Revision 1.212 by root, Wed Oct 10 04:21:33 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15	#include <inttypes.h> /* portable stdint.h */
14		16
15	#ifdef HAVE_MMAP	17	#ifdef HAVE_MMAP
16	# include <unistd.h>	18	# include <unistd.h>
17	# include <sys/mman.h>	19	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	20	# ifndef MAP_ANONYMOUS
75	/* 5.8.7 */	77	/* 5.8.7 */
76	#ifndef SvRV_set	78	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	79	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	80	#endif
79		81
		82	/* 5.8.8 */
		83	#ifndef GV_NOTQUAL
		84	# define GV_NOTQUAL 0
		85	#endif
		86	#ifndef newSV
		87	# define newSV(l) NEWSV(0,l)
		88	#endif
		89
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	90	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	91	# undef CORO_STACKGUARD
82	#endif	92	#endif
83		93
84	#ifndef CORO_STACKGUARD	94	#ifndef CORO_STACKGUARD
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	108	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		109
100	#if __GNUC__ >= 3	110	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	111	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	112	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		113	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	114	#else
104	# define attribute(x)	115	# define attribute(x)
105	# define BARRIER	116	# define BARRIER
		117	# define expect(expr,value) (expr)
106	#endif	118	#endif
		119
		120	#define expect_false(expr) expect ((expr) != 0, 0)
		121	#define expect_true(expr) expect ((expr) != 0, 1)
107		122
108	#define NOINLINE attribute ((noinline))	123	#define NOINLINE attribute ((noinline))
109		124
110	#include "CoroAPI.h"	125	#include "CoroAPI.h"
111		126
…		…
131	static struct CoroAPI coroapi;	146	static struct CoroAPI coroapi;
132	static AV main_mainstack; / used to differentiate between $main and others */	147	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	148	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	149	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	150	static SV coro_mortal; / will be freed after next transfer */
		151
		152	static GV irsgv; / $/ */
		153	static GV stdoutgv; / STDOUT /
		154
		155	static HV hv_sig; / %SIG */
		156	static SV *sv_diehook;
		157	static SV *sv_warnhook;
136		158
137	/* async_pool helper stuff */	159	/* async_pool helper stuff */
138	static SV *sv_pool_rss;	160	static SV *sv_pool_rss;
139	static SV *sv_pool_size;	161	static SV *sv_pool_size;
140	static AV *av_async_pool;	162	static AV *av_async_pool;
…		…
176	CF_READY = 0x0002, /* coroutine is ready */	198	CF_READY = 0x0002, /* coroutine is ready */
177	CF_NEW = 0x0004, /* has never been switched to */	199	CF_NEW = 0x0004, /* has never been switched to */
178	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	200	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
179	};	201	};
180		202
		203	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		204	typedef struct {
		205	SV *defsv;
		206	AV *defav;
		207	SV *errsv;
		208	SV *irsgv;
		209	#define VAR(name,type) type name;
		210	# include "state.h"
		211	#undef VAR
		212	} perl_slots;
		213
		214	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		215
181	/* this is a structure representing a perl-level coroutine */	216	/* this is a structure representing a perl-level coroutine */
182	struct coro {	217	struct coro {
183	/* the c coroutine allocated to this perl coroutine, if any */	218	/* the c coroutine allocated to this perl coroutine, if any */
184	coro_cctx *cctx;	219	coro_cctx *cctx;
185		220
		221	/* process data */
		222	AV *mainstack;
		223	perl_slots slot; / basically the saved sp */
		224
186	/* data associated with this coroutine (initial args) */	225	AV args; / data associated with this coroutine (initial args) */
187	AV *args;	226	int refcnt; /* coroutines are refcounted, yes */
188	int refcnt;
189	int save; /* CORO_SAVE flags */
190	int flags; /* CF_ flags */	227	int flags; /* CF_ flags */
191		228	HV hv; / the perl hash associated with this coro, if any */
192	/* optionally saved, might be zero */
193	AV defav; / @_ */
194	SV defsv; / $_ */
195	SV errsv; / $@ */
196	GV deffh; / default filehandle */
197	SV irssv; / $/ */
198	SV irssv_sv; / real $/ cache */
199
200	#define VAR(name,type) type name;
201	# include "state.h"
202	#undef VAR
203		229
204	/* statistics */	230	/* statistics */
205	int usecount; /* number of switches to this coro */	231	int usecount; /* number of transfers to this coro */
206		232
207	/* coro process data */	233	/* coro process data */
208	int prio;	234	int prio;
		235	SV throw; / exception to be thrown */
		236
		237	/* async_pool */
		238	SV *saved_deffh;
209		239
210	/* linked list */	240	/* linked list */
211	struct coro next, prev;	241	struct coro next, prev;
212	HV hv; / the perl hash associated with this coro, if any */
213	};	242	};
214		243
215	typedef struct coro *Coro__State;	244	typedef struct coro *Coro__State;
216	typedef struct coro *Coro__State_or_hashref;	245	typedef struct coro *Coro__State_or_hashref;
217		246
…		…
229	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	258	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
230	static int coro_nready;	259	static int coro_nready;
231	static struct coro *coro_first;	260	static struct coro *coro_first;
232		261
233	/ lowlevel stuff ********************************************************/	262	/ lowlevel stuff ********************************************************/
		263
		264	static SV *
		265	coro_get_sv (const char *name, int create)
		266	{
		267	#if PERL_VERSION_ATLEAST (5,9,0)
		268	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		269	get_sv (name, create);
		270	#endif
		271	return get_sv (name, create);
		272	}
		273
		274	static AV *
		275	coro_get_av (const char *name, int create)
		276	{
		277	#if PERL_VERSION_ATLEAST (5,9,0)
		278	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		279	get_av (name, create);
		280	#endif
		281	return get_av (name, create);
		282	}
		283
		284	static HV *
		285	coro_get_hv (const char *name, int create)
		286	{
		287	#if PERL_VERSION_ATLEAST (5,9,0)
		288	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		289	get_hv (name, create);
		290	#endif
		291	return get_hv (name, create);
		292	}
234		293
235	static AV *	294	static AV *
236	coro_clone_padlist (pTHX_ CV *cv)	295	coro_clone_padlist (pTHX_ CV *cv)
237	{	296	{
238	AV *padlist = CvPADLIST (cv);	297	AV *padlist = CvPADLIST (cv);
…		…
311	MAGIC *mg;	370	MAGIC *mg;
312		371
313	if (SvROK (coro))	372	if (SvROK (coro))
314	coro = SvRV (coro);	373	coro = SvRV (coro);
315		374
316	if (SvTYPE (coro) != SVt_PVHV)	375	if (expect_false (SvTYPE (coro) != SVt_PVHV))
317	croak ("Coro::State object required");	376	croak ("Coro::State object required");
318		377
319	stash = SvSTASH (coro);	378	stash = SvSTASH (coro);
320	if (stash != coro_stash && stash != coro_state_stash)	379	if (expect_false (stash != coro_stash && stash != coro_state_stash))
321	{	380	{
322	/* very slow, but rare, check */	381	/* very slow, but rare, check */
323	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	382	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
324	croak ("Coro::State object required");	383	croak ("Coro::State object required");
325	}	384	}
…		…
335	get_padlist (pTHX_ CV *cv)	394	get_padlist (pTHX_ CV *cv)
336	{	395	{
337	MAGIC *mg = CORO_MAGIC (cv);	396	MAGIC *mg = CORO_MAGIC (cv);
338	AV *av;	397	AV *av;
339		398
340	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	399	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
341	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	400	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
342	else	401	else
343	{	402	{
344	#if CORO_PREFER_PERL_FUNCTIONS	403	#if CORO_PREFER_PERL_FUNCTIONS
345	/* this is probably cleaner, but also slower? */	404	/* this is probably cleaner, but also slower? */
…		…
357	put_padlist (pTHX_ CV *cv)	416	put_padlist (pTHX_ CV *cv)
358	{	417	{
359	MAGIC *mg = CORO_MAGIC (cv);	418	MAGIC *mg = CORO_MAGIC (cv);
360	AV *av;	419	AV *av;
361		420
362	if (!mg)	421	if (expect_false (!mg))
363	{	422	{
364	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	423	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
365	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	424	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
366	mg->mg_virtual = &vtbl_coro;	425	mg->mg_virtual = &vtbl_coro;
367	mg->mg_obj = (SV *)newAV ();	426	mg->mg_obj = (SV *)newAV ();
368	}	427	}
369		428
370	av = (AV *)mg->mg_obj;	429	av = (AV *)mg->mg_obj;
371		430
372	if (AvFILLp (av) >= AvMAX (av))	431	if (expect_false (AvFILLp (av) >= AvMAX (av)))
373	av_extend (av, AvMAX (av) + 1);	432	av_extend (av, AvMAX (av) + 1);
374		433
375	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	434	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
376	}	435	}
377		436
378	/ load & save, init *****************************************************/	437	/ load & save, init *****************************************************/
379		438
380	#define SB do {
381	#define SE } while (0)
382
383	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
384
385	static void	439	static void
386	load_perl (pTHX_ Coro__State c)	440	load_perl (pTHX_ Coro__State c)
387	{	441	{
		442	perl_slots *slot = c->slot;
		443	c->slot = 0;
		444
		445	PL_mainstack = c->mainstack;
		446
		447	GvSV (PL_defgv) = slot->defsv;
		448	GvAV (PL_defgv) = slot->defav;
		449	GvSV (PL_errgv) = slot->errsv;
		450	GvSV (irsgv) = slot->irsgv;
		451
388	#define VAR(name,type) PL_ ## name = c->name;	452	#define VAR(name,type) PL_ ## name = slot->name;
389	# include "state.h"	453	# include "state.h"
390	#undef VAR	454	#undef VAR
391		455
392	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	456	/hv_store (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, SvREFCNT_inc (sv_diehook ), 0);/
393	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	457	/hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, SvREFCNT_inc (sv_warnhook), 0);/
394	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
395	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
396
397	if (c->irssv)
398	{
399	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
400	{
401	SvREFCNT_dec (c->irssv);
402	c->irssv = 0;
403	}
404	else
405	{
406	REPLACE_SV (PL_rs, c->irssv);
407	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
408	sv_setsv (c->irssv_sv, PL_rs);
409	}
410	}
411		458
412	{	459	{
413	dSP;	460	dSP;
		461
414	CV *cv;	462	CV *cv;
415		463
416	/* now do the ugly restore mess */	464	/* now do the ugly restore mess */
417	while ((cv = (CV *)POPs))	465	while (expect_true (cv = (CV *)POPs))
418	{	466	{
419	put_padlist (aTHX_ cv); /* mark this padlist as available */	467	put_padlist (aTHX_ cv); /* mark this padlist as available */
420	CvDEPTH (cv) = PTR2IV (POPs);	468	CvDEPTH (cv) = PTR2IV (POPs);
421	CvPADLIST (cv) = (AV *)POPs;	469	CvPADLIST (cv) = (AV *)POPs;
422	}	470	}
…		…
441		489
442	XPUSHs (Nullsv);	490	XPUSHs (Nullsv);
443	/* this loop was inspired by pp_caller */	491	/* this loop was inspired by pp_caller */
444	for (;;)	492	for (;;)
445	{	493	{
446	while (cxix >= 0)	494	while (expect_true (cxix >= 0))
447	{	495	{
448	PERL_CONTEXT *cx = &ccstk[cxix--];	496	PERL_CONTEXT *cx = &ccstk[cxix--];
449		497
450	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	498	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
451	{	499	{
452	CV *cv = cx->blk_sub.cv;	500	CV *cv = cx->blk_sub.cv;
453		501
454	if (CvDEPTH (cv))	502	if (expect_true (CvDEPTH (cv)))
455	{	503	{
456	EXTEND (SP, 3);	504	EXTEND (SP, 3);
457	PUSHs ((SV *)CvPADLIST (cv));	505	PUSHs ((SV *)CvPADLIST (cv));
458	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	506	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
459	PUSHs ((SV *)cv);	507	PUSHs ((SV *)cv);
…		…
462	get_padlist (aTHX_ cv);	510	get_padlist (aTHX_ cv);
463	}	511	}
464	}	512	}
465	}	513	}
466		514
467	if (top_si->si_type == PERLSI_MAIN)	515	if (expect_true (top_si->si_type == PERLSI_MAIN))
468	break;	516	break;
469		517
470	top_si = top_si->si_prev;	518	top_si = top_si->si_prev;
471	ccstk = top_si->si_cxstack;	519	ccstk = top_si->si_cxstack;
472	cxix = top_si->si_cxix;	520	cxix = top_si->si_cxix;
473	}	521	}
474		522
475	PUTBACK;	523	PUTBACK;
476	}	524	}
477		525
478	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	526	/* allocate some space on the context stack for our purposes */
479	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	527	/* we manually unroll here, as usually 2 slots is enough */
480	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	528	if (SLOT_COUNT >= 1) CXINC;
481	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	529	if (SLOT_COUNT >= 2) CXINC;
482	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	530	if (SLOT_COUNT >= 3) CXINC;
		531	{
		532	int i;
		533	for (i = 3; i < SLOT_COUNT; ++i)
		534	CXINC;
		535	}
		536	cxstack_ix -= SLOT_COUNT; /* undo allocation */
483		537
		538	c->mainstack = PL_mainstack;
		539
		540	{
		541	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		542
		543	slot->defav = GvAV (PL_defgv);
		544	slot->defsv = DEFSV;
		545	slot->errsv = ERRSV;
		546	slot->irsgv = GvSV (irsgv);
		547
484	#define VAR(name,type)c->name = PL_ ## name;	548	#define VAR(name,type) slot->name = PL_ ## name;
485	# include "state.h"	549	# include "state.h"
486	#undef VAR	550	#undef VAR
		551	}
487	}	552	}
488		553
489	/*	554	/*
490	* allocate various perl stacks. This is an exact copy	555	* allocate various perl stacks. This is an exact copy
491	* of perl.c:init_stacks, except that it uses less memory	556	* of perl.c:init_stacks, except that it uses less memory
…		…
496	# define coro_init_stacks init_stacks	561	# define coro_init_stacks init_stacks
497	#else	562	#else
498	static void	563	static void
499	coro_init_stacks (pTHX)	564	coro_init_stacks (pTHX)
500	{	565	{
501	PL_curstackinfo = new_stackinfo(64, 6);	566	PL_curstackinfo = new_stackinfo(32, 8);
502	PL_curstackinfo->si_type = PERLSI_MAIN;	567	PL_curstackinfo->si_type = PERLSI_MAIN;
503	PL_curstack = PL_curstackinfo->si_stack;	568	PL_curstack = PL_curstackinfo->si_stack;
504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	569	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
505		570
506	PL_stack_base = AvARRAY(PL_curstack);	571	PL_stack_base = AvARRAY(PL_curstack);
507	PL_stack_sp = PL_stack_base;	572	PL_stack_sp = PL_stack_base;
508	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	573	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
509		574
510	New(50,PL_tmps_stack,64,SV*);	575	New(50,PL_tmps_stack,32,SV*);
511	PL_tmps_floor = -1;	576	PL_tmps_floor = -1;
512	PL_tmps_ix = -1;	577	PL_tmps_ix = -1;
513	PL_tmps_max = 64;	578	PL_tmps_max = 32;
514		579
515	New(54,PL_markstack,16,I32);	580	New(54,PL_markstack,16,I32);
516	PL_markstack_ptr = PL_markstack;	581	PL_markstack_ptr = PL_markstack;
517	PL_markstack_max = PL_markstack + 16;	582	PL_markstack_max = PL_markstack + 16;
518		583
519	#ifdef SET_MARK_OFFSET	584	#ifdef SET_MARK_OFFSET
520	SET_MARK_OFFSET;	585	SET_MARK_OFFSET;
521	#endif	586	#endif
522		587
523	New(54,PL_scopestack,16,I32);	588	New(54,PL_scopestack,8,I32);
524	PL_scopestack_ix = 0;	589	PL_scopestack_ix = 0;
525	PL_scopestack_max = 16;	590	PL_scopestack_max = 8;
526		591
527	New(54,PL_savestack,64,ANY);	592	New(54,PL_savestack,24,ANY);
528	PL_savestack_ix = 0;	593	PL_savestack_ix = 0;
529	PL_savestack_max = 64;	594	PL_savestack_max = 24;
530		595
531	#if !PERL_VERSION_ATLEAST (5,9,0)	596	#if !PERL_VERSION_ATLEAST (5,9,0)
532	New(54,PL_retstack,4,OP*);	597	New(54,PL_retstack,4,OP*);
533	PL_retstack_ix = 0;	598	PL_retstack_ix = 0;
534	PL_retstack_max = 4;	599	PL_retstack_max = 4;
…		…
540	* destroy the stacks, the callchain etc...	605	* destroy the stacks, the callchain etc...
541	*/	606	*/
542	static void	607	static void
543	coro_destroy_stacks (pTHX)	608	coro_destroy_stacks (pTHX)
544	{	609	{
545	if (!IN_DESTRUCT)
546	{
547	/* restore all saved variables and stuff */
548	LEAVE_SCOPE (0);
549	assert (PL_tmps_floor == -1);
550
551	/* free all temporaries */
552	FREETMPS;
553	assert (PL_tmps_ix == -1);
554
555	/* unwind all extra stacks */
556	POPSTACK_TO (PL_mainstack);
557
558	/* unwind main stack */
559	dounwind (-1);
560	}
561
562	while (PL_curstackinfo->si_next)	610	while (PL_curstackinfo->si_next)
563	PL_curstackinfo = PL_curstackinfo->si_next;	611	PL_curstackinfo = PL_curstackinfo->si_next;
564		612
565	while (PL_curstackinfo)	613	while (PL_curstackinfo)
566	{	614	{
…		…
584	}	632	}
585		633
586	static size_t	634	static size_t
587	coro_rss (pTHX_ struct coro *coro)	635	coro_rss (pTHX_ struct coro *coro)
588	{	636	{
589	size_t rss = sizeof (coro);	637	size_t rss = sizeof (*coro);
590		638
591	if (coro->mainstack)	639	if (coro->mainstack)
592	{	640	{
		641	perl_slots tmp_slot;
		642	perl_slots *slot;
		643
593	if (coro->flags & CF_RUNNING)	644	if (coro->flags & CF_RUNNING)
594	{	645	{
		646	slot = &tmp_slot;
		647
595	#define VAR(name,type)coro->name = PL_ ## name;	648	#define VAR(name,type) slot->name = PL_ ## name;
596	# include "state.h"	649	# include "state.h"
597	#undef VAR	650	#undef VAR
598	}	651	}
		652	else
		653	slot = coro->slot;
599		654
600	rss += sizeof (coro->curstackinfo);	655	rss += sizeof (slot->curstackinfo);
601	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
602	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	656	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
603	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	657	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
604	rss += coro->tmps_max * sizeof (SV *);	658	rss += slot->tmps_max * sizeof (SV *);
605	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
606	rss += coro->scopestack_max * sizeof (I32);	660	rss += slot->scopestack_max * sizeof (I32);
607	rss += coro->savestack_max * sizeof (ANY);	661	rss += slot->savestack_max * sizeof (ANY);
608		662
609	#if !PERL_VERSION_ATLEAST (5,9,0)	663	#if !PERL_VERSION_ATLEAST (5,9,0)
610	rss += coro->retstack_max * sizeof (OP *);	664	rss += slot->retstack_max * sizeof (OP *);
611	#endif	665	#endif
612	}	666	}
613		667
614	return rss;	668	return rss;
615	}	669	}
616		670
617	/ coroutine stack handling **********************************************/	671	/ coroutine stack handling **********************************************/
618		672
619	static void	673	static void
620	setup_coro (pTHX_ struct coro *coro)	674	coro_setup (pTHX_ struct coro *coro)
621	{	675	{
622	/*	676	/*
623	* emulate part of the perl startup here.	677	* emulate part of the perl startup here.
624	*/	678	*/
625	coro_init_stacks (aTHX);	679	coro_init_stacks (aTHX);
…		…
627	PL_runops = RUNOPS_DEFAULT;	681	PL_runops = RUNOPS_DEFAULT;
628	PL_curcop = &PL_compiling;	682	PL_curcop = &PL_compiling;
629	PL_in_eval = EVAL_NULL;	683	PL_in_eval = EVAL_NULL;
630	PL_comppad = 0;	684	PL_comppad = 0;
631	PL_curpm = 0;	685	PL_curpm = 0;
		686	PL_curpad = 0;
632	PL_localizing = 0;	687	PL_localizing = 0;
633	PL_dirty = 0;	688	PL_dirty = 0;
634	PL_restartop = 0;	689	PL_restartop = 0;
		690	PL_diehook = 0; hv_store (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, SvREFCNT_inc (sv_diehook ), 0);
		691	PL_warnhook = 0; hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, SvREFCNT_inc (sv_warnhook), 0);
		692
		693	GvSV (PL_defgv) = newSV (0);
		694	GvAV (PL_defgv) = coro->args; coro->args = 0;
		695	GvSV (PL_errgv) = newSV (0);
		696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		697	PL_rs = newSVsv (GvSV (irsgv));
		698	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
635		699
636	{	700	{
637	dSP;	701	dSP;
638	LOGOP myop;	702	LOGOP myop;
639		703
640	SvREFCNT_dec (GvAV (PL_defgv));
641	GvAV (PL_defgv) = coro->args; coro->args = 0;
642
643	Zero (&myop, 1, LOGOP);	704	Zero (&myop, 1, LOGOP);
644	myop.op_next = Nullop;	705	myop.op_next = Nullop;
645	myop.op_flags = OPf_WANT_VOID;	706	myop.op_flags = OPf_WANT_VOID;
646		707
647	PUSHMARK (SP);	708	PUSHMARK (SP);
648	XPUSHs (av_shift (GvAV (PL_defgv)));	709	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
649	PUTBACK;	710	PUTBACK;
650	PL_op = (OP *)&myop;	711	PL_op = (OP *)&myop;
651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
652	SPAGAIN;	713	SPAGAIN;
653	}	714	}
654		715
655	ENTER; /* necessary e.g. for dounwind */	716	/* this newly created coroutine might be run on an existing cctx which most
		717	* likely was suspended in set_stacklevel, called from entersub.
		718	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		719	* so we ENTER here for symmetry
		720	*/
		721	ENTER;
		722	}
		723
		724	static void
		725	coro_destroy (pTHX_ struct coro *coro)
		726	{
		727	if (!IN_DESTRUCT)
		728	{
		729	/* restore all saved variables and stuff */
		730	LEAVE_SCOPE (0);
		731	assert (PL_tmps_floor == -1);
		732
		733	/* free all temporaries */
		734	FREETMPS;
		735	assert (PL_tmps_ix == -1);
		736
		737	/* unwind all extra stacks */
		738	POPSTACK_TO (PL_mainstack);
		739
		740	/* unwind main stack */
		741	dounwind (-1);
		742	}
		743
		744	SvREFCNT_dec (GvSV (PL_defgv));
		745	SvREFCNT_dec (GvAV (PL_defgv));
		746	SvREFCNT_dec (GvSV (PL_errgv));
		747	SvREFCNT_dec (PL_defoutgv);
		748	SvREFCNT_dec (PL_rs);
		749	SvREFCNT_dec (GvSV (irsgv));
		750
		751	SvREFCNT_dec (PL_diehook);
		752	SvREFCNT_dec (PL_warnhook);
		753
		754	SvREFCNT_dec (coro->saved_deffh);
		755	SvREFCNT_dec (coro->throw);
		756
		757	coro_destroy_stacks (aTHX);
656	}	758	}
657		759
658	static void	760	static void
659	free_coro_mortal (pTHX)	761	free_coro_mortal (pTHX)
660	{	762	{
661	if (coro_mortal)	763	if (expect_true (coro_mortal))
662	{	764	{
663	SvREFCNT_dec (coro_mortal);	765	SvREFCNT_dec (coro_mortal);
664	coro_mortal = 0;	766	coro_mortal = 0;
665	}	767	}
666	}	768	}
…		…
695	bot = PL_stack_base + cx->blk_oldsp + 1;	797	bot = PL_stack_base + cx->blk_oldsp + 1;
696	top = cx->blk_gimme == G_ARRAY ? SP + 1	798	top = cx->blk_gimme == G_ARRAY ? SP + 1
697	: cx->blk_gimme == G_SCALAR ? bot + 1	799	: cx->blk_gimme == G_SCALAR ? bot + 1
698	: bot;	800	: bot;
699		801
		802	av_extend (av, top - bot);
700	while (bot < top)	803	while (bot < top)
701	av_push (av, SvREFCNT_inc (*bot++));	804	av_push (av, SvREFCNT_inc (*bot++));
702		805
703	PL_runops = RUNOPS_DEFAULT;	806	PL_runops = RUNOPS_DEFAULT;
704	ENTER;	807	ENTER;
…		…
790		893
791	/* inject a fake call to Coro::State::_cctx_init into the execution */	894	/* inject a fake call to Coro::State::_cctx_init into the execution */
792	/* _cctx_init should be careful, as it could be called at almost any time */	895	/* _cctx_init should be careful, as it could be called at almost any time */
793	/* during execution of a perl program */	896	/* during execution of a perl program */
794	static void NOINLINE	897	static void NOINLINE
795	prepare_cctx (pTHX_ coro_cctx *cctx)	898	cctx_prepare (pTHX_ coro_cctx *cctx)
796	{	899	{
797	dSP;	900	dSP;
798	LOGOP myop;	901	LOGOP myop;
799		902
800	PL_top_env = &PL_start_env;	903	PL_top_env = &PL_start_env;
…		…
818		921
819	/*	922	/*
820	* this is a _very_ stripped down perl interpreter ;)	923	* this is a _very_ stripped down perl interpreter ;)
821	*/	924	*/
822	static void	925	static void
823	coro_run (void *arg)	926	cctx_run (void *arg)
824	{	927	{
825	dTHX;	928	dTHX;
826		929
827	/* coro_run is the alternative tail of transfer(), so unlock here. */	930	/* cctx_run is the alternative tail of transfer(), so unlock here. */
828	UNLOCK;	931	UNLOCK;
829		932
830	/* we now skip the entersub that lead to transfer() */	933	/* we now skip the entersub that lead to transfer() */
831	PL_op = PL_op->op_next;	934	PL_op = PL_op->op_next;
832		935
833	/* inject a fake subroutine call to cctx_init */	936	/* inject a fake subroutine call to cctx_init */
834	prepare_cctx (aTHX_ (coro_cctx *)arg);	937	cctx_prepare (aTHX_ (coro_cctx *)arg);
835		938
836	/* somebody or something will hit me for both perl_run and PL_restartop */	939	/* somebody or something will hit me for both perl_run and PL_restartop */
837	PL_restartop = PL_op;	940	PL_restartop = PL_op;
838	perl_run (PL_curinterp);	941	perl_run (PL_curinterp);
839		942
…		…
858	++cctx_count;	961	++cctx_count;
859		962
860	Newz (0, cctx, 1, coro_cctx);	963	Newz (0, cctx, 1, coro_cctx);
861		964
862	#if HAVE_MMAP	965	#if HAVE_MMAP
863
864	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	966	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
865	/* mmap supposedly does allocate-on-write for us */	967	/* mmap supposedly does allocate-on-write for us */
866	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	968	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
867		969
868	if (cctx->sptr != (void *)-1)	970	if (cctx->sptr != (void *)-1)
…		…
889	stack_start = cctx->sptr;	991	stack_start = cctx->sptr;
890	stack_size = cctx->ssize;	992	stack_size = cctx->ssize;
891	}	993	}
892		994
893	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	995	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
894	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	996	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
895		997
896	return cctx;	998	return cctx;
897	}	999	}
898		1000
899	static void	1001	static void
…		…
916	Safefree (cctx->sptr);	1018	Safefree (cctx->sptr);
917		1019
918	Safefree (cctx);	1020	Safefree (cctx);
919	}	1021	}
920		1022
		1023	/* wether this cctx should be destructed */
		1024	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1025
921	static coro_cctx *	1026	static coro_cctx *
922	cctx_get (pTHX)	1027	cctx_get (pTHX)
923	{	1028	{
924	while (cctx_first)	1029	while (expect_true (cctx_first))
925	{	1030	{
926	coro_cctx *cctx = cctx_first;	1031	coro_cctx *cctx = cctx_first;
927	cctx_first = cctx->next;	1032	cctx_first = cctx->next;
928	--cctx_idle;	1033	--cctx_idle;
929		1034
930	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1035	if (expect_true (!CCTX_EXPIRED (cctx)))
931	return cctx;	1036	return cctx;
932		1037
933	cctx_destroy (cctx);	1038	cctx_destroy (cctx);
934	}	1039	}
935		1040
…		…
938		1043
939	static void	1044	static void
940	cctx_put (coro_cctx *cctx)	1045	cctx_put (coro_cctx *cctx)
941	{	1046	{
942	/* free another cctx if overlimit */	1047	/* free another cctx if overlimit */
943	if (cctx_idle >= MAX_IDLE_CCTX)	1048	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
944	{	1049	{
945	coro_cctx *first = cctx_first;	1050	coro_cctx *first = cctx_first;
946	cctx_first = first->next;	1051	cctx_first = first->next;
947	--cctx_idle;	1052	--cctx_idle;
948		1053
…		…
954	cctx_first = cctx;	1059	cctx_first = cctx;
955	}	1060	}
956		1061
957	/ coroutine switching ***************************************************/	1062	/ coroutine switching ***************************************************/
958		1063
959	static void NOINLINE	1064	static void
960	transfer_check (pTHX_ struct coro prev, struct coro next)	1065	transfer_check (pTHX_ struct coro prev, struct coro next)
961	{	1066	{
962	if (prev != next)	1067	if (expect_true (prev != next))
963	{	1068	{
964	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1069	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
965	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1070	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
966		1071
967	if (next->flags & CF_RUNNING)	1072	if (expect_false (next->flags & CF_RUNNING))
968	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1073	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
969		1074
970	if (next->flags & CF_DESTROYED)	1075	if (expect_false (next->flags & CF_DESTROYED))
971	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1076	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
972		1077
		1078	if (
		1079	#if PERL_VERSION_ATLEAST (5,9,0)
		1080	expect_false (PL_parser)
		1081	#else
973	if (PL_lex_state != LEX_NOTPARSING)	1082	expect_false (PL_lex_state != LEX_NOTPARSING)
		1083	#endif
		1084	)
974	croak ("Coro::State::transfer called while parsing, but this is not supported");	1085	croak ("Coro::State::transfer called while parsing, but this is not supported");
975	}	1086	}
976	}	1087	}
977		1088
978	/* always use the TRANSFER macro */	1089	/* always use the TRANSFER macro */
…		…
980	transfer (pTHX_ struct coro prev, struct coro next)	1091	transfer (pTHX_ struct coro prev, struct coro next)
981	{	1092	{
982	dSTACKLEVEL;	1093	dSTACKLEVEL;
983		1094
984	/* sometimes transfer is only called to set idle_sp */	1095	/* sometimes transfer is only called to set idle_sp */
985	if (!next)	1096	if (expect_false (!next))
986	{	1097	{
987	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1098	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
988	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1099	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
989	}	1100	}
990	else if (prev != next)	1101	else if (expect_true (prev != next))
991	{	1102	{
992	coro_cctx *prev__cctx;	1103	coro_cctx *prev__cctx;
993		1104
994	if (prev->flags & CF_NEW)	1105	if (expect_false (prev->flags & CF_NEW))
995	{	1106	{
996	/* create a new empty context */	1107	/* create a new empty context */
997	Newz (0, prev->cctx, 1, coro_cctx);	1108	Newz (0, prev->cctx, 1, coro_cctx);
998	prev->flags &= ~CF_NEW;	1109	prev->flags &= ~CF_NEW;
999	prev->flags \|= CF_RUNNING;	1110	prev->flags \|= CF_RUNNING;
…		…
1002	prev->flags &= ~CF_RUNNING;	1113	prev->flags &= ~CF_RUNNING;
1003	next->flags \|= CF_RUNNING;	1114	next->flags \|= CF_RUNNING;
1004		1115
1005	LOCK;	1116	LOCK;
1006		1117
1007	if (next->flags & CF_NEW)	1118	if (expect_false (next->flags & CF_NEW))
1008	{	1119	{
1009	/* need to start coroutine */	1120	/* need to start coroutine */
1010	next->flags &= ~CF_NEW;	1121	next->flags &= ~CF_NEW;
1011	/* first get rid of the old state */	1122	/* first get rid of the old state */
1012	save_perl (aTHX_ prev);	1123	save_perl (aTHX_ prev);
1013	/* setup coroutine call */	1124	/* setup coroutine call */
1014	setup_coro (aTHX_ next);	1125	coro_setup (aTHX_ next);
1015	}	1126	}
1016	else	1127	else
1017	{	1128	{
1018	/* coroutine already started */	1129	/* coroutine already started */
1019	save_perl (aTHX_ prev);	1130	save_perl (aTHX_ prev);
…		…
1021	}	1132	}
1022		1133
1023	prev__cctx = prev->cctx;	1134	prev__cctx = prev->cctx;
1024		1135
1025	/* possibly "free" the cctx */	1136	/* possibly "free" the cctx */
1026	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1137	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1027	{	1138	{
1028	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1139	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1029	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1140	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1030		1141
1031	prev->cctx = 0;	1142	prev->cctx = 0;
1032		1143
		1144	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1145	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1146	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1147	if (!next->cctx)
		1148	next->cctx = cctx_get (aTHX);
		1149
1033	cctx_put (prev__cctx);	1150	cctx_put (prev__cctx);
1034	}	1151	}
1035		1152
1036	++next->usecount;	1153	++next->usecount;
1037		1154
1038	if (!next->cctx)	1155	if (expect_true (!next->cctx))
1039	next->cctx = cctx_get (aTHX);	1156	next->cctx = cctx_get (aTHX);
1040		1157
1041	if (prev__cctx != next->cctx)	1158	if (expect_false (prev__cctx != next->cctx))
1042	{	1159	{
1043	prev__cctx->top_env = PL_top_env;	1160	prev__cctx->top_env = PL_top_env;
1044	PL_top_env = next->cctx->top_env;	1161	PL_top_env = next->cctx->top_env;
1045	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1162	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1046	}	1163	}
1047		1164
1048	free_coro_mortal (aTHX);	1165	free_coro_mortal (aTHX);
1049	UNLOCK;	1166	UNLOCK;
		1167
		1168	if (expect_false (prev->throw \|\| next->throw))
		1169	{
		1170	struct coro *coro = SvSTATE (coro_current);
		1171
		1172	if (coro->throw)
		1173	{
		1174	SV *exception = coro->throw;
		1175	coro->throw = 0;
		1176	sv_setsv (ERRSV, exception);
		1177	croak (0);
		1178	}
		1179	}
1050	}	1180	}
1051	}	1181	}
1052		1182
1053	struct transfer_args	1183	struct transfer_args
1054	{	1184	{
…		…
1081		1211
1082	if (coro->mainstack && coro->mainstack != main_mainstack)	1212	if (coro->mainstack && coro->mainstack != main_mainstack)
1083	{	1213	{
1084	struct coro temp;	1214	struct coro temp;
1085		1215
1086	assert (!(coro->flags & CF_RUNNING));
1087
1088	Zero (&temp, 1, struct coro);
1089	temp.save = CORO_SAVE_ALL;
1090
1091	if (coro->flags & CF_RUNNING)	1216	if (coro->flags & CF_RUNNING)
1092	croak ("FATAL: tried to destroy currently running coroutine");	1217	croak ("FATAL: tried to destroy currently running coroutine");
1093		1218
1094	save_perl (aTHX_ &temp);	1219	save_perl (aTHX_ &temp);
1095	load_perl (aTHX_ coro);	1220	load_perl (aTHX_ coro);
1096		1221
1097	coro_destroy_stacks (aTHX);	1222	coro_destroy (aTHX_ coro);
1098		1223
1099	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1224	load_perl (aTHX_ &temp);
1100		1225
1101	coro->mainstack = 0;	1226	coro->slot = 0;
1102	}	1227	}
1103		1228
1104	cctx_destroy (coro->cctx);	1229	cctx_destroy (coro->cctx);
1105	SvREFCNT_dec (coro->args);	1230	SvREFCNT_dec (coro->args);
1106		1231
…		…
1165		1290
1166	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1291	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1167	TRANSFER (ta);	1292	TRANSFER (ta);
1168	}	1293	}
1169		1294
1170	static int
1171	api_save (SV *coro_sv, int new_save)
1172	{
1173	dTHX;
1174	struct coro *coro = SvSTATE (coro_sv);
1175	int old_save = coro->save;
1176
1177	if (new_save >= 0)
1178	coro->save = new_save;
1179
1180	return old_save;
1181	}
1182
1183	/ Coro ******************************************************************/	1295	/ Coro ******************************************************************/
1184		1296
1185	static void	1297	static void
1186	coro_enq (pTHX_ SV *coro_sv)	1298	coro_enq (pTHX_ SV *coro_sv)
1187	{	1299	{
…		…
1244	{	1356	{
1245	LOCK;	1357	LOCK;
1246	next_sv = coro_deq (aTHX_ PRIO_MIN);	1358	next_sv = coro_deq (aTHX_ PRIO_MIN);
1247		1359
1248	/* nothing to schedule: call the idle handler */	1360	/* nothing to schedule: call the idle handler */
1249	if (!next_sv)	1361	if (expect_false (!next_sv))
1250	{	1362	{
1251	dSP;	1363	dSP;
1252	UNLOCK;	1364	UNLOCK;
1253		1365
1254	ENTER;	1366	ENTER;
…		…
1264	}	1376	}
1265		1377
1266	ta->next = SvSTATE (next_sv);	1378	ta->next = SvSTATE (next_sv);
1267		1379
1268	/* cannot transfer to destroyed coros, skip and look for next */	1380	/* cannot transfer to destroyed coros, skip and look for next */
1269	if (ta->next->flags & CF_DESTROYED)	1381	if (expect_false (ta->next->flags & CF_DESTROYED))
1270	{	1382	{
1271	UNLOCK;	1383	UNLOCK;
1272	SvREFCNT_dec (next_sv);	1384	SvREFCNT_dec (next_sv);
1273	/* coro_nready is already taken care of by destroy */	1385	/* coro_nready is already taken care of by destroy */
1274	continue;	1386	continue;
…		…
1330	dTHX;	1442	dTHX;
1331	struct transfer_args ta;	1443	struct transfer_args ta;
1332		1444
1333	prepare_cede (aTHX_ &ta);	1445	prepare_cede (aTHX_ &ta);
1334		1446
1335	if (ta.prev != ta.next)	1447	if (expect_true (ta.prev != ta.next))
1336	{	1448	{
1337	TRANSFER (ta);	1449	TRANSFER (ta);
1338	return 1;	1450	return 1;
1339	}	1451	}
1340	else	1452	else
…		…
1376	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1488	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1377		1489
1378	if (coro->flags & CF_RUNNING)	1490	if (coro->flags & CF_RUNNING)
1379	PL_runops = RUNOPS_DEFAULT;	1491	PL_runops = RUNOPS_DEFAULT;
1380	else	1492	else
1381	coro->runops = RUNOPS_DEFAULT;	1493	coro->slot->runops = RUNOPS_DEFAULT;
1382	}	1494	}
1383	}	1495	}
1384		1496
1385	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1497	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1386		1498
…		…
1390	{	1502	{
1391	#ifdef USE_ITHREADS	1503	#ifdef USE_ITHREADS
1392	MUTEX_INIT (&coro_mutex);	1504	MUTEX_INIT (&coro_mutex);
1393	#endif	1505	#endif
1394	BOOT_PAGESIZE;	1506	BOOT_PAGESIZE;
		1507
		1508	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1509	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1510
		1511	hv_sig = coro_get_hv ("SIG", TRUE);
		1512	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
		1513	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
		1514
		1515	if (!PL_diehook ) hv_store (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, SvREFCNT_inc (sv_diehook ), 0);
		1516	if (!PL_warnhook) hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, SvREFCNT_inc (sv_warnhook), 0);
1395		1517
1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1518	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1397		1519
1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1520	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1521	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1400	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1522	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	1523	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1402		1524
1403	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1404	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1405	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1406	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1407	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1408	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1409	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1410
1411	main_mainstack = PL_mainstack;	1525	main_mainstack = PL_mainstack;
1412	main_top_env = PL_top_env;	1526	main_top_env = PL_top_env;
1413		1527
1414	while (main_top_env->je_prev)	1528	while (main_top_env->je_prev)
1415	main_top_env = main_top_env->je_prev;	1529	main_top_env = main_top_env->je_prev;
1416		1530
1417	coroapi.ver = CORO_API_VERSION;	1531	coroapi.ver = CORO_API_VERSION;
		1532	coroapi.rev = CORO_API_REVISION;
1418	coroapi.transfer = api_transfer;	1533	coroapi.transfer = api_transfer;
1419		1534
1420	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1535	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1421	}	1536	}
1422		1537
…		…
1427	struct coro *coro;	1542	struct coro *coro;
1428	HV *hv;	1543	HV *hv;
1429	int i;	1544	int i;
1430		1545
1431	Newz (0, coro, 1, struct coro);	1546	Newz (0, coro, 1, struct coro);
1432	coro->args = newAV ();	1547	coro->args = newAV ();
1433	coro->save = CORO_SAVE_DEF;
1434	coro->flags = CF_NEW;	1548	coro->flags = CF_NEW;
1435		1549
1436	if (coro_first) coro_first->prev = coro;	1550	if (coro_first) coro_first->prev = coro;
1437	coro->next = coro_first;	1551	coro->next = coro_first;
1438	coro_first = coro;	1552	coro_first = coro;
1439		1553
1440	coro->hv = hv = newHV ();	1554	coro->hv = hv = newHV ();
1441	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1555	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1442	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1556	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1443		1557
		1558	av_extend (coro->args, items - 1);
1444	for (i = 1; i < items; i++)	1559	for (i = 1; i < items; i++)
1445	av_push (coro->args, newSVsv (ST (i)));	1560	av_push (coro->args, newSVsv (ST (i)));
1446	}	1561	}
1447	OUTPUT:	1562	OUTPUT:
1448	RETVAL	1563	RETVAL
1449		1564
1450	int	1565	# these not obviously related functions are all rolled into the same xs
1451	save (SV *coro, int new_save = -1)	1566	# function to increase chances that they all will call transfer with the same
1452	CODE:	1567	# stack offset
1453	RETVAL = api_save (coro, new_save);
1454	OUTPUT:
1455	RETVAL
1456
1457	int
1458	save_also (SV *coro_sv, int save_also)
1459	CODE:
1460	{
1461	struct coro *coro = SvSTATE (coro_sv);
1462	RETVAL = coro->save;
1463	coro->save \|= save_also;
1464	}
1465	OUTPUT:
1466	RETVAL
1467
1468	void	1568	void
1469	_set_stacklevel (...)	1569	_set_stacklevel (...)
1470	ALIAS:	1570	ALIAS:
1471	Coro::State::transfer = 1	1571	Coro::State::transfer = 1
1472	Coro::schedule = 2	1572	Coro::schedule = 2
…		…
1504		1604
1505	break;	1605	break;
1506	}	1606	}
1507		1607
1508	BARRIER;	1608	BARRIER;
		1609	PUTBACK;
1509	TRANSFER (ta);	1610	TRANSFER (ta);
1510		1611	SPAGAIN; /* might be the sp of a different coroutine now */
1511	if (GIMME_V != G_VOID && ta.next != ta.prev)	1612	/* be extra careful not to ever do anything after TRANSFER */
1512	XSRETURN_YES;
1513	}	1613	}
1514		1614
1515	bool	1615	bool
1516	_destroy (SV *coro_sv)	1616	_destroy (SV *coro_sv)
1517	CODE:	1617	CODE:
…		…
1566	CODE:	1666	CODE:
1567	{	1667	{
1568	if (coro->mainstack)	1668	if (coro->mainstack)
1569	{	1669	{
1570	struct coro temp;	1670	struct coro temp;
1571	Zero (&temp, 1, struct coro);
1572	temp.save = CORO_SAVE_ALL;
1573		1671
1574	if (!(coro->flags & CF_RUNNING))	1672	if (!(coro->flags & CF_RUNNING))
1575	{	1673	{
1576	save_perl (aTHX_ &temp);	1674	save_perl (aTHX_ &temp);
1577	load_perl (aTHX_ coro);	1675	load_perl (aTHX_ coro);
…		…
1579		1677
1580	{	1678	{
1581	dSP;	1679	dSP;
1582	ENTER;	1680	ENTER;
1583	SAVETMPS;	1681	SAVETMPS;
		1682	PUTBACK;
		1683	PUSHSTACK;
1584	PUSHMARK (SP);	1684	PUSHMARK (SP);
1585	PUTBACK;	1685
1586	if (ix)	1686	if (ix)
1587	eval_sv (coderef, 0);	1687	eval_sv (coderef, 0);
1588	else	1688	else
1589	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1689	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1690
		1691	POPSTACK;
1590	SPAGAIN;	1692	SPAGAIN;
1591	FREETMPS;	1693	FREETMPS;
1592	LEAVE;	1694	LEAVE;
1593	PUTBACK;	1695	PUTBACK;
1594	}	1696	}
…		…
1652		1754
1653	BOOT:	1755	BOOT:
1654	{	1756	{
1655	int i;	1757	int i;
1656		1758
1657	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1759	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1658	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1760	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1659	av_async_pool = get_av ("Coro::async_pool", TRUE);	1761	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1660		1762
1661	coro_current = get_sv ("Coro::current", FALSE);	1763	coro_current = coro_get_sv ("Coro::current", FALSE);
1662	SvREADONLY_on (coro_current);	1764	SvREADONLY_on (coro_current);
1663		1765
1664	coro_stash = gv_stashpv ("Coro", TRUE);	1766	coro_stash = gv_stashpv ("Coro", TRUE);
1665		1767
1666	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1768	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1667	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1769	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1668	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1770	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1669	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1771	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1672		1774
1673	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1775	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1674	coro_ready[i] = newAV ();	1776	coro_ready[i] = newAV ();
1675		1777
1676	{	1778	{
1677	SV *sv = perl_get_sv("Coro::API", 1);	1779	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1780	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1678		1781
1679	coroapi.schedule = api_schedule;	1782	coroapi.schedule = api_schedule;
1680	coroapi.save = api_save;
1681	coroapi.cede = api_cede;	1783	coroapi.cede = api_cede;
1682	coroapi.cede_notself = api_cede_notself;	1784	coroapi.cede_notself = api_cede_notself;
1683	coroapi.ready = api_ready;	1785	coroapi.ready = api_ready;
1684	coroapi.is_ready = api_is_ready;	1786	coroapi.is_ready = api_is_ready;
1685	coroapi.nready = &coro_nready;	1787	coroapi.nready = &coro_nready;
…		…
1734	CODE:	1836	CODE:
1735	RETVAL = coro_nready;	1837	RETVAL = coro_nready;
1736	OUTPUT:	1838	OUTPUT:
1737	RETVAL	1839	RETVAL
1738		1840
		1841	void
		1842	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1843	PROTOTYPE: $;$
		1844	CODE:
		1845	SvREFCNT_dec (self->throw);
		1846	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1847
1739	# for async_pool speedup	1848	# for async_pool speedup
1740	void	1849	void
1741	_pool_1 (SV *cb)	1850	_pool_1 (SV *cb)
1742	CODE:	1851	CODE:
1743	{	1852	{
1744	int i, len;	1853	struct coro *coro = SvSTATE (coro_current);
1745	HV hv = (HV )SvRV (coro_current);	1854	HV hv = (HV )SvRV (coro_current);
1746	AV *defav = GvAV (PL_defgv);	1855	AV *defav = GvAV (PL_defgv);
1747	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1856	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1748	AV *invoke_av;	1857	AV *invoke_av;
		1858	int i, len;
1749		1859
1750	if (!invoke)	1860	if (!invoke)
1751	croak ("\3terminate\2\n");	1861	croak ("\3async_pool terminate\2\n");
		1862
		1863	SvREFCNT_dec (coro->saved_deffh);
		1864	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1752		1865
1753	hv_store (hv, "desc", sizeof ("desc") - 1,	1866	hv_store (hv, "desc", sizeof ("desc") - 1,
1754	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1867	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1755		1868
1756	invoke_av = (AV *)SvRV (invoke);	1869	invoke_av = (AV *)SvRV (invoke);
…		…
1774	{	1887	{
1775	struct coro *coro = SvSTATE (coro_current);	1888	struct coro *coro = SvSTATE (coro_current);
1776		1889
1777	sv_setsv (cb, &PL_sv_undef);	1890	sv_setsv (cb, &PL_sv_undef);
1778		1891
		1892	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1893	coro->saved_deffh = 0;
		1894
1779	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1895	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1780	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1896	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1781	croak ("\3terminate\2\n");	1897	croak ("\3async_pool terminate\2\n");
1782		1898
1783	av_clear (GvAV (PL_defgv));	1899	av_clear (GvAV (PL_defgv));
1784	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1900	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1785	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1901	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1786		1902
1787	coro->save = CORO_SAVE_DEF;
1788	coro->prio = 0;	1903	coro->prio = 0;
1789		1904
1790	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	1905	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1791	api_trace (coro_current, 0);	1906	api_trace (coro_current, 0);
1792		1907

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Comparing Coro/Coro/State.xs (file contents): Revision 1.175 by root, Sun Sep 30 13:43:45 2007 UTC vs. Revision 1.212 by root, Wed Oct 10 04:21:33 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.175 by root, Sun Sep 30 13:43:45 2007 UTC vs.
Revision 1.212 by root, Wed Oct 10 04:21:33 2007 UTC