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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.189 by root, Fri Oct 5 20:38:43 2007 UTC vs.
Revision 1.222 by root, Sun Jan 20 10:22:07 2008 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
…		…
130	static size_t coro_stacksize = CORO_STACKSIZE;	145	static size_t coro_stacksize = CORO_STACKSIZE;
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 volatile SV coro_mortal; / will be freed after next transfer */
136		151
137	static GV irsgv; / $/ */	152	static GV irsgv; / $/ */
138	static GV stdoutgv; / STDOUT /	153	static GV stdoutgv; / STDOUT /
		154	static SV *rv_diehook;
		155	static SV *rv_warnhook;
		156	static HV hv_sig; / %SIG */
139		157
140	/* async_pool helper stuff */	158	/* async_pool helper stuff */
141	static SV *sv_pool_rss;	159	static SV *sv_pool_rss;
142	static SV *sv_pool_size;	160	static SV *sv_pool_size;
143	static AV *av_async_pool;	161	static AV *av_async_pool;
…		…
179	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
180	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
181	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	199	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
182	};	200	};
183		201
		202	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		203	typedef struct {
		204	SV *defsv;
		205	AV *defav;
		206	SV *errsv;
		207	SV *irsgv;
		208	#define VAR(name,type) type name;
		209	# include "state.h"
		210	#undef VAR
		211	} perl_slots;
		212
		213	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		214
184	/* this is a structure representing a perl-level coroutine */	215	/* this is a structure representing a perl-level coroutine */
185	struct coro {	216	struct coro {
186	/* the c coroutine allocated to this perl coroutine, if any */	217	/* the c coroutine allocated to this perl coroutine, if any */
187	coro_cctx *cctx;	218	coro_cctx *cctx;
188		219
		220	/* process data */
		221	AV *mainstack;
		222	perl_slots slot; / basically the saved sp */
		223
189	/* data associated with this coroutine (initial args) */	224	AV args; / data associated with this coroutine (initial args) */
190	AV *args;	225	int refcnt; /* coroutines are refcounted, yes */
191	int refcnt;
192	int flags; /* CF_ flags */	226	int flags; /* CF_ flags */
193		227	HV hv; / the perl hash associated with this coro, if any */
194	/* optionally saved, might be zero */
195	AV defav; / @_ */
196	SV defsv; / $_ */
197	SV errsv; / $@ */
198	SV deffh; / default filehandle */
199	SV irssv; / $/ */
200	SV irssv_sv; / real $/ cache */
201
202	#define VAR(name,type) type name;
203	# include "state.h"
204	#undef VAR
205		228
206	/* statistics */	229	/* statistics */
207	int usecount; /* number of transfers to this coro */	230	int usecount; /* number of transfers to this coro */
208		231
209	/* coro process data */	232	/* coro process data */
210	int prio;	233	int prio;
211	//SV *throw;	234	SV throw; / exception to be thrown */
212		235
213	/* async_pool */	236	/* async_pool */
214	SV *saved_deffh;	237	SV *saved_deffh;
215		238
216	/* linked list */	239	/* linked list */
217	struct coro next, prev;	240	struct coro next, prev;
218	HV hv; / the perl hash associated with this coro, if any */
219	};	241	};
220		242
221	typedef struct coro *Coro__State;	243	typedef struct coro *Coro__State;
222	typedef struct coro *Coro__State_or_hashref;	244	typedef struct coro *Coro__State_or_hashref;
223		245
…		…
235	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	257	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
236	static int coro_nready;	258	static int coro_nready;
237	static struct coro *coro_first;	259	static struct coro *coro_first;
238		260
239	/ lowlevel stuff ********************************************************/	261	/ lowlevel stuff ********************************************************/
		262
		263	static SV *
		264	coro_get_sv (pTHX_ const char *name, int create)
		265	{
		266	#if PERL_VERSION_ATLEAST (5,9,0)
		267	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		268	get_sv (name, create);
		269	#endif
		270	return get_sv (name, create);
		271	}
		272
		273	static AV *
		274	coro_get_av (pTHX_ const char *name, int create)
		275	{
		276	#if PERL_VERSION_ATLEAST (5,9,0)
		277	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		278	get_av (name, create);
		279	#endif
		280	return get_av (name, create);
		281	}
		282
		283	static HV *
		284	coro_get_hv (pTHX_ const char *name, int create)
		285	{
		286	#if PERL_VERSION_ATLEAST (5,9,0)
		287	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		288	get_hv (name, create);
		289	#endif
		290	return get_hv (name, create);
		291	}
240		292
241	static AV *	293	static AV *
242	coro_clone_padlist (pTHX_ CV *cv)	294	coro_clone_padlist (pTHX_ CV *cv)
243	{	295	{
244	AV *padlist = CvPADLIST (cv);	296	AV *padlist = CvPADLIST (cv);
…		…
292		344
293	/* casting is fun. */	345	/* casting is fun. */
294	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	346	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
295	free_padlist (aTHX_ padlist);	347	free_padlist (aTHX_ padlist);
296		348
297	SvREFCNT_dec (av);
298
299	return 0;	349	return 0;
300	}	350	}
301		351
302	#define PERL_MAGIC_coro PERL_MAGIC_ext	352	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		353	#define CORO_MAGIC_type_state PERL_MAGIC_ext
303		354
304	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	355	static MGVTBL coro_cv_vtbl = {
		356	0, 0, 0, 0,
		357	coro_cv_free
		358	};
305		359
306	#define CORO_MAGIC(cv) \	360	#define CORO_MAGIC(sv,type) \
307	SvMAGIC (cv) \	361	SvMAGIC (sv) \
308	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	362	? SvMAGIC (sv)->mg_type == type \
309	? SvMAGIC (cv) \	363	? SvMAGIC (sv) \
310	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	364	: mg_find (sv, type) \
311	: 0	365	: 0
		366
		367	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		368	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
312		369
313	static struct coro *	370	static struct coro *
314	SvSTATE_ (pTHX_ SV *coro)	371	SvSTATE_ (pTHX_ SV *coro)
315	{	372	{
316	HV *stash;	373	HV *stash;
317	MAGIC *mg;	374	MAGIC *mg;
318		375
319	if (SvROK (coro))	376	if (SvROK (coro))
320	coro = SvRV (coro);	377	coro = SvRV (coro);
321		378
322	if (SvTYPE (coro) != SVt_PVHV)	379	if (expect_false (SvTYPE (coro) != SVt_PVHV))
323	croak ("Coro::State object required");	380	croak ("Coro::State object required");
324		381
325	stash = SvSTASH (coro);	382	stash = SvSTASH (coro);
326	if (stash != coro_stash && stash != coro_state_stash)	383	if (expect_false (stash != coro_stash && stash != coro_state_stash))
327	{	384	{
328	/* very slow, but rare, check */	385	/* very slow, but rare, check */
329	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	386	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
330	croak ("Coro::State object required");	387	croak ("Coro::State object required");
331	}	388	}
332		389
333	mg = CORO_MAGIC (coro);	390	mg = CORO_MAGIC_state (coro);
334	return (struct coro *)mg->mg_ptr;	391	return (struct coro *)mg->mg_ptr;
335	}	392	}
336		393
337	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	394	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
338		395
339	/* the next two functions merely cache the padlists */	396	/* the next two functions merely cache the padlists */
340	static void	397	static void
341	get_padlist (pTHX_ CV *cv)	398	get_padlist (pTHX_ CV *cv)
342	{	399	{
343	MAGIC *mg = CORO_MAGIC (cv);	400	MAGIC *mg = CORO_MAGIC_cv (cv);
344	AV *av;	401	AV *av;
345		402
346	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	403	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
347	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	404	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
348	else	405	else
349	{	406	{
350	#if CORO_PREFER_PERL_FUNCTIONS	407	#if CORO_PREFER_PERL_FUNCTIONS
351	/* this is probably cleaner, but also slower? */	408	/* this is probably cleaner, but also slower? */
…		…
360	}	417	}
361		418
362	static void	419	static void
363	put_padlist (pTHX_ CV *cv)	420	put_padlist (pTHX_ CV *cv)
364	{	421	{
365	MAGIC *mg = CORO_MAGIC (cv);	422	MAGIC *mg = CORO_MAGIC_cv (cv);
366	AV *av;	423	AV *av;
367		424
368	if (!mg)	425	if (expect_false (!mg))
369	{	426	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
370	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
371	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
372	mg->mg_virtual = &vtbl_coro;
373	mg->mg_obj = (SV *)newAV ();
374	}
375		427
376	av = (AV *)mg->mg_obj;	428	av = (AV *)mg->mg_obj;
377		429
378	if (AvFILLp (av) >= AvMAX (av))	430	if (expect_false (AvFILLp (av) >= AvMAX (av)))
379	av_extend (av, AvMAX (av) + 1);	431	av_extend (av, AvMAX (av) + 1);
380		432
381	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	433	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
382	}	434	}
383		435
384	/ load & save, init *****************************************************/	436	/ load & save, init *****************************************************/
385		437
386	static void	438	static void
387	load_perl (pTHX_ Coro__State c)	439	load_perl (pTHX_ Coro__State c)
388	{	440	{
		441	perl_slots *slot = c->slot;
		442	c->slot = 0;
		443
		444	PL_mainstack = c->mainstack;
		445
		446	GvSV (PL_defgv) = slot->defsv;
		447	GvAV (PL_defgv) = slot->defav;
		448	GvSV (PL_errgv) = slot->errsv;
		449	GvSV (irsgv) = slot->irsgv;
		450
389	#define VAR(name,type) PL_ ## name = c->name;	451	#define VAR(name,type) PL_ ## name = slot->name;
390	# include "state.h"	452	# include "state.h"
391	#undef VAR	453	#undef VAR
392
393	GvSV (PL_defgv) = c->defsv;
394	GvAV (PL_defgv) = c->defav;
395	GvSV (PL_errgv) = c->errsv;
396	GvSV (irsgv) = c->irssv_sv;
397		454
398	{	455	{
399	dSP;	456	dSP;
		457
400	CV *cv;	458	CV *cv;
401		459
402	/* now do the ugly restore mess */	460	/* now do the ugly restore mess */
403	while ((cv = (CV *)POPs))	461	while (expect_true (cv = (CV *)POPs))
404	{	462	{
405	put_padlist (aTHX_ cv); /* mark this padlist as available */	463	put_padlist (aTHX_ cv); /* mark this padlist as available */
406	CvDEPTH (cv) = PTR2IV (POPs);	464	CvDEPTH (cv) = PTR2IV (POPs);
407	CvPADLIST (cv) = (AV *)POPs;	465	CvPADLIST (cv) = (AV *)POPs;
408	}	466	}
…		…
427		485
428	XPUSHs (Nullsv);	486	XPUSHs (Nullsv);
429	/* this loop was inspired by pp_caller */	487	/* this loop was inspired by pp_caller */
430	for (;;)	488	for (;;)
431	{	489	{
432	while (cxix >= 0)	490	while (expect_true (cxix >= 0))
433	{	491	{
434	PERL_CONTEXT *cx = &ccstk[cxix--];	492	PERL_CONTEXT *cx = &ccstk[cxix--];
435		493
436	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	494	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
437	{	495	{
438	CV *cv = cx->blk_sub.cv;	496	CV *cv = cx->blk_sub.cv;
439		497
440	if (CvDEPTH (cv))	498	if (expect_true (CvDEPTH (cv)))
441	{	499	{
442	EXTEND (SP, 3);	500	EXTEND (SP, 3);
443	PUSHs ((SV *)CvPADLIST (cv));	501	PUSHs ((SV *)CvPADLIST (cv));
444	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	502	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
445	PUSHs ((SV *)cv);	503	PUSHs ((SV *)cv);
…		…
448	get_padlist (aTHX_ cv);	506	get_padlist (aTHX_ cv);
449	}	507	}
450	}	508	}
451	}	509	}
452		510
453	if (top_si->si_type == PERLSI_MAIN)	511	if (expect_true (top_si->si_type == PERLSI_MAIN))
454	break;	512	break;
455		513
456	top_si = top_si->si_prev;	514	top_si = top_si->si_prev;
457	ccstk = top_si->si_cxstack;	515	ccstk = top_si->si_cxstack;
458	cxix = top_si->si_cxix;	516	cxix = top_si->si_cxix;
459	}	517	}
460		518
461	PUTBACK;	519	PUTBACK;
462	}	520	}
463		521
		522	/* allocate some space on the context stack for our purposes */
		523	/* we manually unroll here, as usually 2 slots is enough */
		524	if (SLOT_COUNT >= 1) CXINC;
		525	if (SLOT_COUNT >= 2) CXINC;
		526	if (SLOT_COUNT >= 3) CXINC;
		527	{
		528	int i;
		529	for (i = 3; i < SLOT_COUNT; ++i)
		530	CXINC;
		531	}
		532	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		533
		534	c->mainstack = PL_mainstack;
		535
		536	{
		537	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		538
464	c->defav = GvAV (PL_defgv);	539	slot->defav = GvAV (PL_defgv);
465	c->defsv = DEFSV;	540	slot->defsv = DEFSV;
466	c->errsv = ERRSV;	541	slot->errsv = ERRSV;
467	c->irssv_sv = GvSV (irsgv);	542	slot->irsgv = GvSV (irsgv);
468		543
469	#define VAR(name,type)c->name = PL_ ## name;	544	#define VAR(name,type) slot->name = PL_ ## name;
470	# include "state.h"	545	# include "state.h"
471	#undef VAR	546	#undef VAR
		547	}
472	}	548	}
473		549
474	/*	550	/*
475	* allocate various perl stacks. This is an exact copy	551	* allocate various perl stacks. This is an exact copy
476	* of perl.c:init_stacks, except that it uses less memory	552	* of perl.c:init_stacks, except that it uses less memory
…		…
481	# define coro_init_stacks init_stacks	557	# define coro_init_stacks init_stacks
482	#else	558	#else
483	static void	559	static void
484	coro_init_stacks (pTHX)	560	coro_init_stacks (pTHX)
485	{	561	{
486	PL_curstackinfo = new_stackinfo(64, 6);	562	PL_curstackinfo = new_stackinfo(32, 8);
487	PL_curstackinfo->si_type = PERLSI_MAIN;	563	PL_curstackinfo->si_type = PERLSI_MAIN;
488	PL_curstack = PL_curstackinfo->si_stack;	564	PL_curstack = PL_curstackinfo->si_stack;
489	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	565	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
490		566
491	PL_stack_base = AvARRAY(PL_curstack);	567	PL_stack_base = AvARRAY(PL_curstack);
492	PL_stack_sp = PL_stack_base;	568	PL_stack_sp = PL_stack_base;
493	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	569	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
494		570
495	New(50,PL_tmps_stack,64,SV*);	571	New(50,PL_tmps_stack,32,SV*);
496	PL_tmps_floor = -1;	572	PL_tmps_floor = -1;
497	PL_tmps_ix = -1;	573	PL_tmps_ix = -1;
498	PL_tmps_max = 64;	574	PL_tmps_max = 32;
499		575
500	New(54,PL_markstack,16,I32);	576	New(54,PL_markstack,16,I32);
501	PL_markstack_ptr = PL_markstack;	577	PL_markstack_ptr = PL_markstack;
502	PL_markstack_max = PL_markstack + 16;	578	PL_markstack_max = PL_markstack + 16;
503		579
504	#ifdef SET_MARK_OFFSET	580	#ifdef SET_MARK_OFFSET
505	SET_MARK_OFFSET;	581	SET_MARK_OFFSET;
506	#endif	582	#endif
507		583
508	New(54,PL_scopestack,16,I32);	584	New(54,PL_scopestack,8,I32);
509	PL_scopestack_ix = 0;	585	PL_scopestack_ix = 0;
510	PL_scopestack_max = 16;	586	PL_scopestack_max = 8;
511		587
512	New(54,PL_savestack,64,ANY);	588	New(54,PL_savestack,24,ANY);
513	PL_savestack_ix = 0;	589	PL_savestack_ix = 0;
514	PL_savestack_max = 64;	590	PL_savestack_max = 24;
515		591
516	#if !PERL_VERSION_ATLEAST (5,9,0)	592	#if !PERL_VERSION_ATLEAST (5,9,0)
517	New(54,PL_retstack,4,OP*);	593	New(54,PL_retstack,4,OP*);
518	PL_retstack_ix = 0;	594	PL_retstack_ix = 0;
519	PL_retstack_max = 4;	595	PL_retstack_max = 4;
…		…
556	{	632	{
557	size_t rss = sizeof (*coro);	633	size_t rss = sizeof (*coro);
558		634
559	if (coro->mainstack)	635	if (coro->mainstack)
560	{	636	{
		637	perl_slots tmp_slot;
		638	perl_slots *slot;
		639
561	if (coro->flags & CF_RUNNING)	640	if (coro->flags & CF_RUNNING)
562	{	641	{
		642	slot = &tmp_slot;
		643
563	#define VAR(name,type)coro->name = PL_ ## name;	644	#define VAR(name,type) slot->name = PL_ ## name;
564	# include "state.h"	645	# include "state.h"
565	#undef VAR	646	#undef VAR
566	}	647	}
		648	else
		649	slot = coro->slot;
567		650
568	rss += sizeof (coro->curstackinfo);	651	rss += sizeof (slot->curstackinfo);
569	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
570	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	652	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
571	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	653	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
572	rss += coro->tmps_max * sizeof (SV *);	654	rss += slot->tmps_max * sizeof (SV *);
573	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	655	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
574	rss += coro->scopestack_max * sizeof (I32);	656	rss += slot->scopestack_max * sizeof (I32);
575	rss += coro->savestack_max * sizeof (ANY);	657	rss += slot->savestack_max * sizeof (ANY);
576		658
577	#if !PERL_VERSION_ATLEAST (5,9,0)	659	#if !PERL_VERSION_ATLEAST (5,9,0)
578	rss += coro->retstack_max * sizeof (OP *);	660	rss += slot->retstack_max * sizeof (OP *);
579	#endif	661	#endif
580	}	662	}
581		663
582	return rss;	664	return rss;
583	}	665	}
584		666
585	/ coroutine stack handling **********************************************/	667	/ coroutine stack handling **********************************************/
		668
		669	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		670	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		671
		672	/*
		673	* This overrides the default magic get method of %SIG elements.
		674	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		675	* and instead of tryign to save and restore the hash elements, we just provide
		676	* readback here.
		677	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		678	* not expecting this to actually change the hook. This is a potential problem
		679	* when a schedule happens then, but we ignore this.
		680	*/
		681	static int
		682	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		683	{
		684	const char *s = MgPV_nolen_const (mg);
		685
		686	if (*s == '_')
		687	{
		688	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		689	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		690	}
		691
		692	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		693	}
		694
		695	static int
		696	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		697	{
		698	const char *s = MgPV_nolen_const (mg);
		699
		700	if (*s == '_')
		701	{
		702	SV **svp = 0;
		703
		704	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		705	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		706
		707	if (svp)
		708	{
		709	SV old = svp;
		710	*svp = newSVsv (sv);
		711	SvREFCNT_dec (old);
		712	return;
		713	}
		714	}
		715
		716	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		717	}
586		718
587	static void	719	static void
588	coro_setup (pTHX_ struct coro *coro)	720	coro_setup (pTHX_ struct coro *coro)
589	{	721	{
590	/*	722	/*
…		…
595	PL_runops = RUNOPS_DEFAULT;	727	PL_runops = RUNOPS_DEFAULT;
596	PL_curcop = &PL_compiling;	728	PL_curcop = &PL_compiling;
597	PL_in_eval = EVAL_NULL;	729	PL_in_eval = EVAL_NULL;
598	PL_comppad = 0;	730	PL_comppad = 0;
599	PL_curpm = 0;	731	PL_curpm = 0;
		732	PL_curpad = 0;
600	PL_localizing = 0;	733	PL_localizing = 0;
601	PL_dirty = 0;	734	PL_dirty = 0;
602	PL_restartop = 0;	735	PL_restartop = 0;
		736
		737	/* recreate the die/warn hooks */
		738	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		739	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
603		740
604	GvSV (PL_defgv) = NEWSV (0, 0);	741	GvSV (PL_defgv) = newSV (0);
605	GvAV (PL_defgv) = coro->args; coro->args = 0;	742	GvAV (PL_defgv) = coro->args; coro->args = 0;
606	GvSV (PL_errgv) = NEWSV (0, 0);	743	GvSV (PL_errgv) = newSV (0);
607	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	744	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
608	PL_rs = newSVsv (GvSV (irsgv));	745	PL_rs = newSVsv (GvSV (irsgv));
609	PL_defoutgv = SvREFCNT_inc (stdoutgv);	746	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
610		747
611	{	748	{
612	dSP;	749	dSP;
613	LOGOP myop;	750	LOGOP myop;
614		751
615	Zero (&myop, 1, LOGOP);	752	Zero (&myop, 1, LOGOP);
616	myop.op_next = Nullop;	753	myop.op_next = Nullop;
617	myop.op_flags = OPf_WANT_VOID;	754	myop.op_flags = OPf_WANT_VOID;
618		755
619	PUSHMARK (SP);	756	PUSHMARK (SP);
620	XPUSHs (av_shift (GvAV (PL_defgv)));	757	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
621	PUTBACK;	758	PUTBACK;
622	PL_op = (OP *)&myop;	759	PL_op = (OP *)&myop;
623	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	760	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
624	SPAGAIN;	761	SPAGAIN;
625	}	762	}
626		763
627	ENTER; /* necessary e.g. for dounwind */	764	/* this newly created coroutine might be run on an existing cctx which most
		765	* likely was suspended in set_stacklevel, called from entersub.
		766	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		767	* so we ENTER here for symmetry
		768	*/
		769	ENTER;
628	}	770	}
629		771
630	static void	772	static void
631	coro_destroy (pTHX_ struct coro *coro)	773	coro_destroy (pTHX_ struct coro *coro)
632	{	774	{
…		…
652	SvREFCNT_dec (GvSV (PL_errgv));	794	SvREFCNT_dec (GvSV (PL_errgv));
653	SvREFCNT_dec (PL_defoutgv);	795	SvREFCNT_dec (PL_defoutgv);
654	SvREFCNT_dec (PL_rs);	796	SvREFCNT_dec (PL_rs);
655	SvREFCNT_dec (GvSV (irsgv));	797	SvREFCNT_dec (GvSV (irsgv));
656		798
		799	SvREFCNT_dec (PL_diehook);
		800	SvREFCNT_dec (PL_warnhook);
		801
657	SvREFCNT_dec (coro->saved_deffh);	802	SvREFCNT_dec (coro->saved_deffh);
658	//SvREFCNT_dec (coro->throw);	803	SvREFCNT_dec (coro->throw);
659		804
660	coro_destroy_stacks (aTHX);	805	coro_destroy_stacks (aTHX);
661	}	806	}
662		807
663	static void	808	static void
664	free_coro_mortal (pTHX)	809	free_coro_mortal (pTHX)
665	{	810	{
666	if (coro_mortal)	811	if (expect_true (coro_mortal))
667	{	812	{
668	SvREFCNT_dec (coro_mortal);	813	SvREFCNT_dec (coro_mortal);
669	coro_mortal = 0;	814	coro_mortal = 0;
670	}	815	}
671	}	816	}
…		…
700	bot = PL_stack_base + cx->blk_oldsp + 1;	845	bot = PL_stack_base + cx->blk_oldsp + 1;
701	top = cx->blk_gimme == G_ARRAY ? SP + 1	846	top = cx->blk_gimme == G_ARRAY ? SP + 1
702	: cx->blk_gimme == G_SCALAR ? bot + 1	847	: cx->blk_gimme == G_SCALAR ? bot + 1
703	: bot;	848	: bot;
704		849
		850	av_extend (av, top - bot);
705	while (bot < top)	851	while (bot < top)
706	av_push (av, SvREFCNT_inc (*bot++));	852	av_push (av, SvREFCNT_inc (*bot++));
707		853
708	PL_runops = RUNOPS_DEFAULT;	854	PL_runops = RUNOPS_DEFAULT;
709	ENTER;	855	ENTER;
…		…
795		941
796	/* inject a fake call to Coro::State::_cctx_init into the execution */	942	/* inject a fake call to Coro::State::_cctx_init into the execution */
797	/* _cctx_init should be careful, as it could be called at almost any time */	943	/* _cctx_init should be careful, as it could be called at almost any time */
798	/* during execution of a perl program */	944	/* during execution of a perl program */
799	static void NOINLINE	945	static void NOINLINE
800	prepare_cctx (pTHX_ coro_cctx *cctx)	946	cctx_prepare (pTHX_ coro_cctx *cctx)
801	{	947	{
802	dSP;	948	dSP;
803	LOGOP myop;	949	LOGOP myop;
804		950
805	PL_top_env = &PL_start_env;	951	PL_top_env = &PL_start_env;
…		…
823		969
824	/*	970	/*
825	* this is a _very_ stripped down perl interpreter ;)	971	* this is a _very_ stripped down perl interpreter ;)
826	*/	972	*/
827	static void	973	static void
828	coro_run (void *arg)	974	cctx_run (void *arg)
829	{	975	{
830	dTHX;	976	dTHX;
831		977
832	/* coro_run is the alternative tail of transfer(), so unlock here. */	978	/* cctx_run is the alternative tail of transfer(), so unlock here. */
833	UNLOCK;	979	UNLOCK;
834		980
835	/* we now skip the entersub that lead to transfer() */	981	/* we now skip the entersub that lead to transfer() */
836	PL_op = PL_op->op_next;	982	PL_op = PL_op->op_next;
837		983
838	/* inject a fake subroutine call to cctx_init */	984	/* inject a fake subroutine call to cctx_init */
839	prepare_cctx (aTHX_ (coro_cctx *)arg);	985	cctx_prepare (aTHX_ (coro_cctx *)arg);
840		986
841	/* somebody or something will hit me for both perl_run and PL_restartop */	987	/* somebody or something will hit me for both perl_run and PL_restartop */
842	PL_restartop = PL_op;	988	PL_restartop = PL_op;
843	perl_run (PL_curinterp);	989	perl_run (PL_curinterp);
844		990
…		…
863	++cctx_count;	1009	++cctx_count;
864		1010
865	Newz (0, cctx, 1, coro_cctx);	1011	Newz (0, cctx, 1, coro_cctx);
866		1012
867	#if HAVE_MMAP	1013	#if HAVE_MMAP
868
869	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1014	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
870	/* mmap supposedly does allocate-on-write for us */	1015	/* mmap supposedly does allocate-on-write for us */
871	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1016	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
872		1017
873	if (cctx->sptr != (void *)-1)	1018	if (cctx->sptr != (void *)-1)
…		…
894	stack_start = cctx->sptr;	1039	stack_start = cctx->sptr;
895	stack_size = cctx->ssize;	1040	stack_size = cctx->ssize;
896	}	1041	}
897		1042
898	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1043	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
899	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1044	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
900		1045
901	return cctx;	1046	return cctx;
902	}	1047	}
903		1048
904	static void	1049	static void
…		…
921	Safefree (cctx->sptr);	1066	Safefree (cctx->sptr);
922		1067
923	Safefree (cctx);	1068	Safefree (cctx);
924	}	1069	}
925		1070
		1071	/* wether this cctx should be destructed */
		1072	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1073
926	static coro_cctx *	1074	static coro_cctx *
927	cctx_get (pTHX)	1075	cctx_get (pTHX)
928	{	1076	{
929	while (cctx_first)	1077	while (expect_true (cctx_first))
930	{	1078	{
931	coro_cctx *cctx = cctx_first;	1079	coro_cctx *cctx = cctx_first;
932	cctx_first = cctx->next;	1080	cctx_first = cctx->next;
933	--cctx_idle;	1081	--cctx_idle;
934		1082
935	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1083	if (expect_true (!CCTX_EXPIRED (cctx)))
936	return cctx;	1084	return cctx;
937		1085
938	cctx_destroy (cctx);	1086	cctx_destroy (cctx);
939	}	1087	}
940		1088
…		…
943		1091
944	static void	1092	static void
945	cctx_put (coro_cctx *cctx)	1093	cctx_put (coro_cctx *cctx)
946	{	1094	{
947	/* free another cctx if overlimit */	1095	/* free another cctx if overlimit */
948	if (cctx_idle >= MAX_IDLE_CCTX)	1096	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
949	{	1097	{
950	coro_cctx *first = cctx_first;	1098	coro_cctx *first = cctx_first;
951	cctx_first = first->next;	1099	cctx_first = first->next;
952	--cctx_idle;	1100	--cctx_idle;
953		1101
…		…
959	cctx_first = cctx;	1107	cctx_first = cctx;
960	}	1108	}
961		1109
962	/ coroutine switching ***************************************************/	1110	/ coroutine switching ***************************************************/
963		1111
964	static void NOINLINE	1112	static void
965	transfer_check (pTHX_ struct coro prev, struct coro next)	1113	transfer_check (pTHX_ struct coro prev, struct coro next)
966	{	1114	{
967	if (prev != next)	1115	if (expect_true (prev != next))
968	{	1116	{
969	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1117	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
970	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1118	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
971		1119
972	if (next->flags & CF_RUNNING)	1120	if (expect_false (next->flags & CF_RUNNING))
973	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1121	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
974		1122
975	if (next->flags & CF_DESTROYED)	1123	if (expect_false (next->flags & CF_DESTROYED))
976	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1124	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
977		1125
		1126	if (
		1127	#if PERL_VERSION_ATLEAST (5,9,0)
		1128	expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
		1129	#else
978	if (PL_lex_state != LEX_NOTPARSING)	1130	expect_false (PL_lex_state != LEX_NOTPARSING)
		1131	#endif
		1132	)
979	croak ("Coro::State::transfer called while parsing, but this is not supported");	1133	croak ("Coro::State::transfer called while parsing, but this is not supported");
980	}	1134	}
981	}	1135	}
982		1136
983	/* always use the TRANSFER macro */	1137	/* always use the TRANSFER macro */
984	static void NOINLINE	1138	static void NOINLINE
985	transfer (pTHX_ struct coro prev, struct coro next)	1139	transfer (pTHX_ struct coro prev, struct coro next)
986	{	1140	{
987	dSTACKLEVEL;	1141	dSTACKLEVEL;
		1142	static volatile int has_throw;
988		1143
989	/* sometimes transfer is only called to set idle_sp */	1144	/* sometimes transfer is only called to set idle_sp */
990	if (!next)	1145	if (expect_false (!next))
991	{	1146	{
992	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1147	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
993	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1148	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
994	}	1149	}
995	else if (prev != next)	1150	else if (expect_true (prev != next))
996	{	1151	{
997	coro_cctx *prev__cctx;	1152	coro_cctx *prev__cctx;
998		1153
999	if (prev->flags & CF_NEW)	1154	if (expect_false (prev->flags & CF_NEW))
1000	{	1155	{
1001	/* create a new empty context */	1156	/* create a new empty context */
1002	Newz (0, prev->cctx, 1, coro_cctx);	1157	Newz (0, prev->cctx, 1, coro_cctx);
1003	prev->flags &= ~CF_NEW;	1158	prev->flags &= ~CF_NEW;
1004	prev->flags \|= CF_RUNNING;	1159	prev->flags \|= CF_RUNNING;
…		…
1007	prev->flags &= ~CF_RUNNING;	1162	prev->flags &= ~CF_RUNNING;
1008	next->flags \|= CF_RUNNING;	1163	next->flags \|= CF_RUNNING;
1009		1164
1010	LOCK;	1165	LOCK;
1011		1166
		1167	/* first get rid of the old state */
		1168	save_perl (aTHX_ prev);
		1169
1012	if (next->flags & CF_NEW)	1170	if (expect_false (next->flags & CF_NEW))
1013	{	1171	{
1014	/* need to start coroutine */	1172	/* need to start coroutine */
1015	next->flags &= ~CF_NEW;	1173	next->flags &= ~CF_NEW;
1016	/* first get rid of the old state */
1017	save_perl (aTHX_ prev);
1018	/* setup coroutine call */	1174	/* setup coroutine call */
1019	coro_setup (aTHX_ next);	1175	coro_setup (aTHX_ next);
1020	}	1176	}
1021	else	1177	else
1022	{
1023	/* coroutine already started */
1024	save_perl (aTHX_ prev);
1025	load_perl (aTHX_ next);	1178	load_perl (aTHX_ next);
1026	}
1027		1179
1028	prev__cctx = prev->cctx;	1180	prev__cctx = prev->cctx;
1029		1181
1030	/* possibly "free" the cctx */	1182	/* possibly "free" the cctx */
1031	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1183	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1032	{	1184	{
1033	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1185	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1034	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1186	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1035		1187
1036	prev->cctx = 0;	1188	prev->cctx = 0;
1037		1189
		1190	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1191	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1192	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1193	if (!next->cctx)
		1194	next->cctx = cctx_get (aTHX);
		1195
1038	cctx_put (prev__cctx);	1196	cctx_put (prev__cctx);
1039	}	1197	}
1040		1198
1041	++next->usecount;	1199	++next->usecount;
1042		1200
1043	if (!next->cctx)	1201	if (expect_true (!next->cctx))
1044	next->cctx = cctx_get (aTHX);	1202	next->cctx = cctx_get (aTHX);
1045		1203
		1204	has_throw = !!next->throw;
		1205
1046	if (prev__cctx != next->cctx)	1206	if (expect_false (prev__cctx != next->cctx))
1047	{	1207	{
1048	prev__cctx->top_env = PL_top_env;	1208	prev__cctx->top_env = PL_top_env;
1049	PL_top_env = next->cctx->top_env;	1209	PL_top_env = next->cctx->top_env;
1050	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1210	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1051	}	1211	}
1052		1212
1053	free_coro_mortal (aTHX);	1213	free_coro_mortal (aTHX);
1054	UNLOCK;	1214	UNLOCK;
		1215
		1216	if (expect_false (has_throw))
		1217	{
		1218	struct coro *coro = SvSTATE (coro_current);
		1219
		1220	if (coro->throw)
		1221	{
		1222	SV *exception = coro->throw;
		1223	coro->throw = 0;
		1224	sv_setsv (ERRSV, exception);
		1225	croak (0);
		1226	}
		1227	}
1055	}	1228	}
1056	}	1229	}
1057		1230
1058	struct transfer_args	1231	struct transfer_args
1059	{	1232	{
…		…
1094	save_perl (aTHX_ &temp);	1267	save_perl (aTHX_ &temp);
1095	load_perl (aTHX_ coro);	1268	load_perl (aTHX_ coro);
1096		1269
1097	coro_destroy (aTHX_ coro);	1270	coro_destroy (aTHX_ coro);
1098		1271
1099	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1272	load_perl (aTHX_ &temp);
1100		1273
1101	coro->mainstack = 0;	1274	coro->slot = 0;
1102	}	1275	}
1103		1276
1104	cctx_destroy (coro->cctx);	1277	cctx_destroy (coro->cctx);
1105	SvREFCNT_dec (coro->args);	1278	SvREFCNT_dec (coro->args);
1106		1279
…		…
1174	{	1347	{
1175	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1348	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1176	}	1349	}
1177		1350
1178	static SV *	1351	static SV *
1179	coro_deq (pTHX_ int min_prio)	1352	coro_deq (pTHX)
1180	{	1353	{
1181	int prio = PRIO_MAX - PRIO_MIN;	1354	int prio;
1182		1355
1183	min_prio -= PRIO_MIN;
1184	if (min_prio < 0)
1185	min_prio = 0;
1186
1187	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1356	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1188	if (AvFILLp (coro_ready [prio]) >= 0)	1357	if (AvFILLp (coro_ready [prio]) >= 0)
1189	return av_shift (coro_ready [prio]);	1358	return av_shift (coro_ready [prio]);
1190		1359
1191	return 0;	1360	return 0;
1192	}	1361	}
…		…
1228	SV prev_sv, next_sv;	1397	SV prev_sv, next_sv;
1229		1398
1230	for (;;)	1399	for (;;)
1231	{	1400	{
1232	LOCK;	1401	LOCK;
1233	next_sv = coro_deq (aTHX_ PRIO_MIN);	1402	next_sv = coro_deq (aTHX);
1234		1403
1235	/* nothing to schedule: call the idle handler */	1404	/* nothing to schedule: call the idle handler */
1236	if (!next_sv)	1405	if (expect_false (!next_sv))
1237	{	1406	{
1238	dSP;	1407	dSP;
1239	UNLOCK;	1408	UNLOCK;
1240		1409
1241	ENTER;	1410	ENTER;
1242	SAVETMPS;	1411	SAVETMPS;
1243		1412
1244	PUSHMARK (SP);	1413	PUSHMARK (SP);
1245	PUTBACK;	1414	PUTBACK;
1246	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1415	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1416	SPAGAIN;
1247		1417
1248	FREETMPS;	1418	FREETMPS;
1249	LEAVE;	1419	LEAVE;
1250	continue;	1420	continue;
1251	}	1421	}
1252		1422
1253	ta->next = SvSTATE (next_sv);	1423	ta->next = SvSTATE (next_sv);
1254		1424
1255	/* cannot transfer to destroyed coros, skip and look for next */	1425	/* cannot transfer to destroyed coros, skip and look for next */
1256	if (ta->next->flags & CF_DESTROYED)	1426	if (expect_false (ta->next->flags & CF_DESTROYED))
1257	{	1427	{
1258	UNLOCK;	1428	UNLOCK;
1259	SvREFCNT_dec (next_sv);	1429	SvREFCNT_dec (next_sv);
1260	/* coro_nready is already taken care of by destroy */	1430	/* coro_nready is already taken care of by destroy */
1261	continue;	1431	continue;
…		…
1317	dTHX;	1487	dTHX;
1318	struct transfer_args ta;	1488	struct transfer_args ta;
1319		1489
1320	prepare_cede (aTHX_ &ta);	1490	prepare_cede (aTHX_ &ta);
1321		1491
1322	if (ta.prev != ta.next)	1492	if (expect_true (ta.prev != ta.next))
1323	{	1493	{
1324	TRANSFER (ta);	1494	TRANSFER (ta);
1325	return 1;	1495	return 1;
1326	}	1496	}
1327	else	1497	else
…		…
1363	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1533	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1364		1534
1365	if (coro->flags & CF_RUNNING)	1535	if (coro->flags & CF_RUNNING)
1366	PL_runops = RUNOPS_DEFAULT;	1536	PL_runops = RUNOPS_DEFAULT;
1367	else	1537	else
1368	coro->runops = RUNOPS_DEFAULT;	1538	coro->slot->runops = RUNOPS_DEFAULT;
1369	}	1539	}
1370	}	1540	}
1371		1541
1372	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1542	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1373		1543
…		…
1378	#ifdef USE_ITHREADS	1548	#ifdef USE_ITHREADS
1379	MUTEX_INIT (&coro_mutex);	1549	MUTEX_INIT (&coro_mutex);
1380	#endif	1550	#endif
1381	BOOT_PAGESIZE;	1551	BOOT_PAGESIZE;
1382		1552
1383	irsgv = gv_fetchpv ("/" , GV_ADD, SVt_PV);	1553	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1384	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD, SVt_PVIO);	1554	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1555
		1556	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1557	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1558	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1559	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1560
		1561	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1562	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1563	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1385		1564
1386	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1565	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1387		1566
1388	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1567	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1389	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1568	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1395		1574
1396	while (main_top_env->je_prev)	1575	while (main_top_env->je_prev)
1397	main_top_env = main_top_env->je_prev;	1576	main_top_env = main_top_env->je_prev;
1398		1577
1399	coroapi.ver = CORO_API_VERSION;	1578	coroapi.ver = CORO_API_VERSION;
		1579	coroapi.rev = CORO_API_REVISION;
1400	coroapi.transfer = api_transfer;	1580	coroapi.transfer = api_transfer;
1401		1581
1402	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1582	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1403	}	1583	}
1404		1584
1405	SV *	1585	SV *
1406	new (char *klass, ...)	1586	new (char *klass, ...)
1407	CODE:	1587	CODE:
1408	{	1588	{
1409	struct coro *coro;	1589	struct coro *coro;
		1590	MAGIC *mg;
1410	HV *hv;	1591	HV *hv;
1411	int i;	1592	int i;
1412		1593
1413	Newz (0, coro, 1, struct coro);	1594	Newz (0, coro, 1, struct coro);
1414	coro->args = newAV ();	1595	coro->args = newAV ();
…		…
1417	if (coro_first) coro_first->prev = coro;	1598	if (coro_first) coro_first->prev = coro;
1418	coro->next = coro_first;	1599	coro->next = coro_first;
1419	coro_first = coro;	1600	coro_first = coro;
1420		1601
1421	coro->hv = hv = newHV ();	1602	coro->hv = hv = newHV ();
1422	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1603	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1604	mg->mg_flags \|= MGf_DUP;
1423	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1605	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1424		1606
		1607	av_extend (coro->args, items - 1);
1425	for (i = 1; i < items; i++)	1608	for (i = 1; i < items; i++)
1426	av_push (coro->args, newSVsv (ST (i)));	1609	av_push (coro->args, newSVsv (ST (i)));
1427	}	1610	}
1428	OUTPUT:	1611	OUTPUT:
1429	RETVAL	1612	RETVAL
…		…
1440	Coro::cede_notself = 4	1623	Coro::cede_notself = 4
1441	CODE:	1624	CODE:
1442	{	1625	{
1443	struct transfer_args ta;	1626	struct transfer_args ta;
1444		1627
		1628	PUTBACK;
1445	switch (ix)	1629	switch (ix)
1446	{	1630	{
1447	case 0:	1631	case 0:
1448	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1632	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1449	ta.next = 0;	1633	ta.next = 0;
…		…
1468	if (!prepare_cede_notself (aTHX_ &ta))	1652	if (!prepare_cede_notself (aTHX_ &ta))
1469	XSRETURN_EMPTY;	1653	XSRETURN_EMPTY;
1470		1654
1471	break;	1655	break;
1472	}	1656	}
		1657	SPAGAIN;
1473		1658
1474	BARRIER;	1659	BARRIER;
		1660	PUTBACK;
1475	TRANSFER (ta);	1661	TRANSFER (ta);
1476		1662	SPAGAIN; /* might be the sp of a different coroutine now */
1477	if (GIMME_V != G_VOID && ta.next != ta.prev)	1663	/* be extra careful not to ever do anything after TRANSFER */
1478	XSRETURN_YES;
1479	}	1664	}
1480		1665
1481	bool	1666	bool
1482	_destroy (SV *coro_sv)	1667	_destroy (SV *coro_sv)
1483	CODE:	1668	CODE:
…		…
1532	CODE:	1717	CODE:
1533	{	1718	{
1534	if (coro->mainstack)	1719	if (coro->mainstack)
1535	{	1720	{
1536	struct coro temp;	1721	struct coro temp;
1537	Zero (&temp, 1, struct coro);
1538		1722
1539	if (!(coro->flags & CF_RUNNING))	1723	if (!(coro->flags & CF_RUNNING))
1540	{	1724	{
		1725	PUTBACK;
1541	save_perl (aTHX_ &temp);	1726	save_perl (aTHX_ &temp);
1542	load_perl (aTHX_ coro);	1727	load_perl (aTHX_ coro);
1543	}	1728	}
1544		1729
1545	{	1730	{
1546	dSP;	1731	dSP;
1547	ENTER;	1732	ENTER;
1548	SAVETMPS;	1733	SAVETMPS;
		1734	PUTBACK;
		1735	PUSHSTACK;
1549	PUSHMARK (SP);	1736	PUSHMARK (SP);
1550	PUTBACK;	1737
1551	if (ix)	1738	if (ix)
1552	eval_sv (coderef, 0);	1739	eval_sv (coderef, 0);
1553	else	1740	else
1554	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1741	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1742
		1743	POPSTACK;
1555	SPAGAIN;	1744	SPAGAIN;
1556	FREETMPS;	1745	FREETMPS;
1557	LEAVE;	1746	LEAVE;
1558	PUTBACK;	1747	PUTBACK;
1559	}	1748	}
1560		1749
1561	if (!(coro->flags & CF_RUNNING))	1750	if (!(coro->flags & CF_RUNNING))
1562	{	1751	{
1563	save_perl (aTHX_ coro);	1752	save_perl (aTHX_ coro);
1564	load_perl (aTHX_ &temp);	1753	load_perl (aTHX_ &temp);
		1754	SPAGAIN;
1565	}	1755	}
1566	}	1756	}
1567	}	1757	}
1568		1758
1569	SV *	1759	SV *
…		…
1617		1807
1618	BOOT:	1808	BOOT:
1619	{	1809	{
1620	int i;	1810	int i;
1621		1811
1622	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1812	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1623	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1813	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1624	av_async_pool = get_av ("Coro::async_pool", TRUE);	1814	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1625		1815
1626	coro_current = get_sv ("Coro::current", FALSE);	1816	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1627	SvREADONLY_on (coro_current);	1817	SvREADONLY_on (coro_current);
1628		1818
1629	coro_stash = gv_stashpv ("Coro", TRUE);	1819	coro_stash = gv_stashpv ("Coro", TRUE);
1630		1820
1631	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1821	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1632	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1822	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1633	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1823	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1634	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1824	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1637		1827
1638	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1828	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1639	coro_ready[i] = newAV ();	1829	coro_ready[i] = newAV ();
1640		1830
1641	{	1831	{
1642	SV *sv = perl_get_sv("Coro::API", 1);	1832	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1833	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1643		1834
1644	coroapi.schedule = api_schedule;	1835	coroapi.schedule = api_schedule;
1645	coroapi.cede = api_cede;	1836	coroapi.cede = api_cede;
1646	coroapi.cede_notself = api_cede_notself;	1837	coroapi.cede_notself = api_cede_notself;
1647	coroapi.ready = api_ready;	1838	coroapi.ready = api_ready;
…		…
1698	CODE:	1889	CODE:
1699	RETVAL = coro_nready;	1890	RETVAL = coro_nready;
1700	OUTPUT:	1891	OUTPUT:
1701	RETVAL	1892	RETVAL
1702		1893
		1894	void
		1895	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1896	PROTOTYPE: $;$
		1897	CODE:
		1898	SvREFCNT_dec (self->throw);
		1899	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1900
1703	# for async_pool speedup	1901	# for async_pool speedup
1704	void	1902	void
1705	_pool_1 (SV *cb)	1903	_pool_1 (SV *cb)
1706	CODE:	1904	CODE:
1707	{	1905	{
…		…
1711	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1909	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1712	AV *invoke_av;	1910	AV *invoke_av;
1713	int i, len;	1911	int i, len;
1714		1912
1715	if (!invoke)	1913	if (!invoke)
		1914	{
		1915	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1716	croak ("\3terminate\2\n");	1916	croak ("\3async_pool terminate\2\n");
		1917	}
1717		1918
1718	SvREFCNT_dec (coro->saved_deffh);	1919	SvREFCNT_dec (coro->saved_deffh);
1719	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1920	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1720		1921
1721	hv_store (hv, "desc", sizeof ("desc") - 1,	1922	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1747	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	1948	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1748	coro->saved_deffh = 0;	1949	coro->saved_deffh = 0;
1749		1950
1750	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1951	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1751	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1952	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1953	{
		1954	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1752	croak ("\3terminate\2\n");	1955	croak ("\3async_pool terminate\2\n");
		1956	}
1753		1957
1754	av_clear (GvAV (PL_defgv));	1958	av_clear (GvAV (PL_defgv));
1755	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1959	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1756	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1960	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1757		1961

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Comparing Coro/Coro/State.xs (file contents): Revision 1.189 by root, Fri Oct 5 20:38:43 2007 UTC vs. Revision 1.222 by root, Sun Jan 20 10:22:07 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.189 by root, Fri Oct 5 20:38:43 2007 UTC vs.
Revision 1.222 by root, Sun Jan 20 10:22:07 2008 UTC