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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.180 by root, Wed Oct 3 17:12:20 2007 UTC vs.
Revision 1.218 by root, Mon Dec 3 00:41:45 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
…		…
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; / $/ */
		153	static GV stdoutgv; / STDOUT /
		154	static SV *rv_diehook;
		155	static SV *rv_warnhook;
		156	static HV hv_sig; / %SIG */
138		157
139	/* async_pool helper stuff */	158	/* async_pool helper stuff */
140	static SV *sv_pool_rss;	159	static SV *sv_pool_rss;
141	static SV *sv_pool_size;	160	static SV *sv_pool_size;
142	static AV *av_async_pool;	161	static AV *av_async_pool;
…		…
178	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
179	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
180	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	199	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
181	};	200	};
182		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
183	/* this is a structure representing a perl-level coroutine */	215	/* this is a structure representing a perl-level coroutine */
184	struct coro {	216	struct coro {
185	/* the c coroutine allocated to this perl coroutine, if any */	217	/* the c coroutine allocated to this perl coroutine, if any */
186	coro_cctx *cctx;	218	coro_cctx *cctx;
187		219
		220	/* process data */
		221	AV *mainstack;
		222	perl_slots slot; / basically the saved sp */
		223
188	/* data associated with this coroutine (initial args) */	224	AV args; / data associated with this coroutine (initial args) */
189	AV *args;	225	int refcnt; /* coroutines are refcounted, yes */
190	int refcnt;
191	int flags; /* CF_ flags */	226	int flags; /* CF_ flags */
192		227	HV hv; / the perl hash associated with this coro, if any */
193	/* optionally saved, might be zero */
194	AV defav; / @_ */
195	SV defsv; / $_ */
196	SV errsv; / $@ */
197	IO deffh; / default filehandle */
198	SV irssv; / $/ */
199	SV irssv_sv; / real $/ cache */
200
201	#define VAR(name,type) type name;
202	# include "state.h"
203	#undef VAR
204		228
205	/* statistics */	229	/* statistics */
206	int usecount; /* number of switches to this coro */	230	int usecount; /* number of transfers to this coro */
207		231
208	/* coro process data */	232	/* coro process data */
209	int prio;	233	int prio;
		234	SV throw; / exception to be thrown */
		235
		236	/* async_pool */
		237	SV *saved_deffh;
210		238
211	/* linked list */	239	/* linked list */
212	struct coro next, prev;	240	struct coro next, prev;
213	HV hv; / the perl hash associated with this coro, if any */
214	};	241	};
215		242
216	typedef struct coro *Coro__State;	243	typedef struct coro *Coro__State;
217	typedef struct coro *Coro__State_or_hashref;	244	typedef struct coro *Coro__State_or_hashref;
218		245
…		…
230	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	257	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
231	static int coro_nready;	258	static int coro_nready;
232	static struct coro *coro_first;	259	static struct coro *coro_first;
233		260
234	/ 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	}
235		292
236	static AV *	293	static AV *
237	coro_clone_padlist (pTHX_ CV *cv)	294	coro_clone_padlist (pTHX_ CV *cv)
238	{	295	{
239	AV *padlist = CvPADLIST (cv);	296	AV *padlist = CvPADLIST (cv);
…		…
287		344
288	/* casting is fun. */	345	/* casting is fun. */
289	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	346	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
290	free_padlist (aTHX_ padlist);	347	free_padlist (aTHX_ padlist);
291		348
292	SvREFCNT_dec (av);
293
294	return 0;	349	return 0;
295	}	350	}
296		351
297	#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
298		354
299	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	};
300		359
301	#define CORO_MAGIC(cv) \	360	#define CORO_MAGIC(sv,type) \
302	SvMAGIC (cv) \	361	SvMAGIC (sv) \
303	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	362	? SvMAGIC (sv)->mg_type == type \
304	? SvMAGIC (cv) \	363	? SvMAGIC (sv) \
305	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	364	: mg_find (sv, type) \
306	: 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)
307		369
308	static struct coro *	370	static struct coro *
309	SvSTATE_ (pTHX_ SV *coro)	371	SvSTATE_ (pTHX_ SV *coro)
310	{	372	{
311	HV *stash;	373	HV *stash;
312	MAGIC *mg;	374	MAGIC *mg;
313		375
314	if (SvROK (coro))	376	if (SvROK (coro))
315	coro = SvRV (coro);	377	coro = SvRV (coro);
316		378
317	if (SvTYPE (coro) != SVt_PVHV)	379	if (expect_false (SvTYPE (coro) != SVt_PVHV))
318	croak ("Coro::State object required");	380	croak ("Coro::State object required");
319		381
320	stash = SvSTASH (coro);	382	stash = SvSTASH (coro);
321	if (stash != coro_stash && stash != coro_state_stash)	383	if (expect_false (stash != coro_stash && stash != coro_state_stash))
322	{	384	{
323	/* very slow, but rare, check */	385	/* very slow, but rare, check */
324	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	386	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
325	croak ("Coro::State object required");	387	croak ("Coro::State object required");
326	}	388	}
327		389
328	mg = CORO_MAGIC (coro);	390	mg = CORO_MAGIC_state (coro);
329	return (struct coro *)mg->mg_ptr;	391	return (struct coro *)mg->mg_ptr;
330	}	392	}
331		393
332	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	394	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
333		395
334	/* the next two functions merely cache the padlists */	396	/* the next two functions merely cache the padlists */
335	static void	397	static void
336	get_padlist (pTHX_ CV *cv)	398	get_padlist (pTHX_ CV *cv)
337	{	399	{
338	MAGIC *mg = CORO_MAGIC (cv);	400	MAGIC *mg = CORO_MAGIC_cv (cv);
339	AV *av;	401	AV *av;
340		402
341	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	403	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
342	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	404	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
343	else	405	else
344	{	406	{
345	#if CORO_PREFER_PERL_FUNCTIONS	407	#if CORO_PREFER_PERL_FUNCTIONS
346	/* this is probably cleaner, but also slower? */	408	/* this is probably cleaner, but also slower? */
…		…
355	}	417	}
356		418
357	static void	419	static void
358	put_padlist (pTHX_ CV *cv)	420	put_padlist (pTHX_ CV *cv)
359	{	421	{
360	MAGIC *mg = CORO_MAGIC (cv);	422	MAGIC *mg = CORO_MAGIC_cv (cv);
361	AV *av;	423	AV *av;
362		424
363	if (!mg)	425	if (expect_false (!mg))
364	{	426	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
365	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
366	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
367	mg->mg_virtual = &vtbl_coro;
368	mg->mg_obj = (SV *)newAV ();
369	}
370		427
371	av = (AV *)mg->mg_obj;	428	av = (AV *)mg->mg_obj;
372		429
373	if (AvFILLp (av) >= AvMAX (av))	430	if (expect_false (AvFILLp (av) >= AvMAX (av)))
374	av_extend (av, AvMAX (av) + 1);	431	av_extend (av, AvMAX (av) + 1);
375		432
376	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	433	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
377	}	434	}
378		435
379	/ load & save, init *****************************************************/	436	/ load & save, init *****************************************************/
380		437
381	static void	438	static void
382	load_perl (pTHX_ Coro__State c)	439	load_perl (pTHX_ Coro__State c)
383	{	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
384	#define VAR(name,type) PL_ ## name = c->name;	451	#define VAR(name,type) PL_ ## name = slot->name;
385	# include "state.h"	452	# include "state.h"
386	#undef VAR	453	#undef VAR
387
388	GvSV (PL_defgv) = c->defsv;
389	GvAV (PL_defgv) = c->defav;
390	GvSV (PL_errgv) = c->errsv;
391	PL_defoutgv = c->deffh;
392	PL_rs = c->irssv;
393	GvSV (irsgv) = c->irssv_sv;
394		454
395	{	455	{
396	dSP;	456	dSP;
		457
397	CV *cv;	458	CV *cv;
398		459
399	/* now do the ugly restore mess */	460	/* now do the ugly restore mess */
400	while ((cv = (CV *)POPs))	461	while (expect_true (cv = (CV *)POPs))
401	{	462	{
402	put_padlist (aTHX_ cv); /* mark this padlist as available */	463	put_padlist (aTHX_ cv); /* mark this padlist as available */
403	CvDEPTH (cv) = PTR2IV (POPs);	464	CvDEPTH (cv) = PTR2IV (POPs);
404	CvPADLIST (cv) = (AV *)POPs;	465	CvPADLIST (cv) = (AV *)POPs;
405	}	466	}
…		…
424		485
425	XPUSHs (Nullsv);	486	XPUSHs (Nullsv);
426	/* this loop was inspired by pp_caller */	487	/* this loop was inspired by pp_caller */
427	for (;;)	488	for (;;)
428	{	489	{
429	while (cxix >= 0)	490	while (expect_true (cxix >= 0))
430	{	491	{
431	PERL_CONTEXT *cx = &ccstk[cxix--];	492	PERL_CONTEXT *cx = &ccstk[cxix--];
432		493
433	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	494	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
434	{	495	{
435	CV *cv = cx->blk_sub.cv;	496	CV *cv = cx->blk_sub.cv;
436		497
437	if (CvDEPTH (cv))	498	if (expect_true (CvDEPTH (cv)))
438	{	499	{
439	EXTEND (SP, 3);	500	EXTEND (SP, 3);
440	PUSHs ((SV *)CvPADLIST (cv));	501	PUSHs ((SV *)CvPADLIST (cv));
441	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	502	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
442	PUSHs ((SV *)cv);	503	PUSHs ((SV *)cv);
…		…
445	get_padlist (aTHX_ cv);	506	get_padlist (aTHX_ cv);
446	}	507	}
447	}	508	}
448	}	509	}
449		510
450	if (top_si->si_type == PERLSI_MAIN)	511	if (expect_true (top_si->si_type == PERLSI_MAIN))
451	break;	512	break;
452		513
453	top_si = top_si->si_prev;	514	top_si = top_si->si_prev;
454	ccstk = top_si->si_cxstack;	515	ccstk = top_si->si_cxstack;
455	cxix = top_si->si_cxix;	516	cxix = top_si->si_cxix;
456	}	517	}
457		518
458	PUTBACK;	519	PUTBACK;
459	}	520	}
460		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
461	c->defav = GvAV (PL_defgv);	539	slot->defav = GvAV (PL_defgv);
462	c->defsv = DEFSV;	540	slot->defsv = DEFSV;
463	c->errsv = ERRSV;	541	slot->errsv = ERRSV;
464	c->deffh = PL_defoutgv;
465	c->irssv = PL_rs;
466	c->irssv_sv = GvSV (irsgv);	542	slot->irsgv = GvSV (irsgv);
467		543
468	#define VAR(name,type)c->name = PL_ ## name;	544	#define VAR(name,type) slot->name = PL_ ## name;
469	# include "state.h"	545	# include "state.h"
470	#undef VAR	546	#undef VAR
		547	}
471	}	548	}
472		549
473	/*	550	/*
474	* allocate various perl stacks. This is an exact copy	551	* allocate various perl stacks. This is an exact copy
475	* of perl.c:init_stacks, except that it uses less memory	552	* of perl.c:init_stacks, except that it uses less memory
…		…
480	# define coro_init_stacks init_stacks	557	# define coro_init_stacks init_stacks
481	#else	558	#else
482	static void	559	static void
483	coro_init_stacks (pTHX)	560	coro_init_stacks (pTHX)
484	{	561	{
485	PL_curstackinfo = new_stackinfo(64, 6);	562	PL_curstackinfo = new_stackinfo(32, 8);
486	PL_curstackinfo->si_type = PERLSI_MAIN;	563	PL_curstackinfo->si_type = PERLSI_MAIN;
487	PL_curstack = PL_curstackinfo->si_stack;	564	PL_curstack = PL_curstackinfo->si_stack;
488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	565	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
489		566
490	PL_stack_base = AvARRAY(PL_curstack);	567	PL_stack_base = AvARRAY(PL_curstack);
491	PL_stack_sp = PL_stack_base;	568	PL_stack_sp = PL_stack_base;
492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	569	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
493		570
494	New(50,PL_tmps_stack,64,SV*);	571	New(50,PL_tmps_stack,32,SV*);
495	PL_tmps_floor = -1;	572	PL_tmps_floor = -1;
496	PL_tmps_ix = -1;	573	PL_tmps_ix = -1;
497	PL_tmps_max = 64;	574	PL_tmps_max = 32;
498		575
499	New(54,PL_markstack,16,I32);	576	New(54,PL_markstack,16,I32);
500	PL_markstack_ptr = PL_markstack;	577	PL_markstack_ptr = PL_markstack;
501	PL_markstack_max = PL_markstack + 16;	578	PL_markstack_max = PL_markstack + 16;
502		579
503	#ifdef SET_MARK_OFFSET	580	#ifdef SET_MARK_OFFSET
504	SET_MARK_OFFSET;	581	SET_MARK_OFFSET;
505	#endif	582	#endif
506		583
507	New(54,PL_scopestack,16,I32);	584	New(54,PL_scopestack,8,I32);
508	PL_scopestack_ix = 0;	585	PL_scopestack_ix = 0;
509	PL_scopestack_max = 16;	586	PL_scopestack_max = 8;
510		587
511	New(54,PL_savestack,64,ANY);	588	New(54,PL_savestack,24,ANY);
512	PL_savestack_ix = 0;	589	PL_savestack_ix = 0;
513	PL_savestack_max = 64;	590	PL_savestack_max = 24;
514		591
515	#if !PERL_VERSION_ATLEAST (5,9,0)	592	#if !PERL_VERSION_ATLEAST (5,9,0)
516	New(54,PL_retstack,4,OP*);	593	New(54,PL_retstack,4,OP*);
517	PL_retstack_ix = 0;	594	PL_retstack_ix = 0;
518	PL_retstack_max = 4;	595	PL_retstack_max = 4;
…		…
551	}	628	}
552		629
553	static size_t	630	static size_t
554	coro_rss (pTHX_ struct coro *coro)	631	coro_rss (pTHX_ struct coro *coro)
555	{	632	{
556	size_t rss = sizeof (coro);	633	size_t rss = sizeof (*coro);
557		634
558	if (coro->mainstack)	635	if (coro->mainstack)
559	{	636	{
		637	perl_slots tmp_slot;
		638	perl_slots *slot;
		639
560	if (coro->flags & CF_RUNNING)	640	if (coro->flags & CF_RUNNING)
561	{	641	{
		642	slot = &tmp_slot;
		643
562	#define VAR(name,type)coro->name = PL_ ## name;	644	#define VAR(name,type) slot->name = PL_ ## name;
563	# include "state.h"	645	# include "state.h"
564	#undef VAR	646	#undef VAR
565	}	647	}
		648	else
		649	slot = coro->slot;
566		650
567	rss += sizeof (coro->curstackinfo);	651	rss += sizeof (slot->curstackinfo);
568	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
569	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	652	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
570	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	653	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
571	rss += coro->tmps_max * sizeof (SV *);	654	rss += slot->tmps_max * sizeof (SV *);
572	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	655	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
573	rss += coro->scopestack_max * sizeof (I32);	656	rss += slot->scopestack_max * sizeof (I32);
574	rss += coro->savestack_max * sizeof (ANY);	657	rss += slot->savestack_max * sizeof (ANY);
575		658
576	#if !PERL_VERSION_ATLEAST (5,9,0)	659	#if !PERL_VERSION_ATLEAST (5,9,0)
577	rss += coro->retstack_max * sizeof (OP *);	660	rss += slot->retstack_max * sizeof (OP *);
578	#endif	661	#endif
579	}	662	}
580		663
581	return rss;	664	return rss;
582	}	665	}
583		666
584	/ coroutine stack handling **********************************************/	667	/ coroutine stack handling **********************************************/
		668
		669	#if 0
		670	static int (orig_sigelem_get) (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	return orig_sigelem_get (aTHX_ sv, mg);
		685	const char *s = MgPV_nolen_const (mg);
		686
		687	if (*s == '_')
		688	{
		689	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		690	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		691	}
		692
		693	return orig_sigelem_get (aTHX_ sv, mg);
		694	}
		695	#endif
585		696
586	static void	697	static void
587	coro_setup (pTHX_ struct coro *coro)	698	coro_setup (pTHX_ struct coro *coro)
588	{	699	{
589	/*	700	/*
…		…
594	PL_runops = RUNOPS_DEFAULT;	705	PL_runops = RUNOPS_DEFAULT;
595	PL_curcop = &PL_compiling;	706	PL_curcop = &PL_compiling;
596	PL_in_eval = EVAL_NULL;	707	PL_in_eval = EVAL_NULL;
597	PL_comppad = 0;	708	PL_comppad = 0;
598	PL_curpm = 0;	709	PL_curpm = 0;
		710	PL_curpad = 0;
599	PL_localizing = 0;	711	PL_localizing = 0;
600	PL_dirty = 0;	712	PL_dirty = 0;
601	PL_restartop = 0;	713	PL_restartop = 0;
		714
		715	/* recreate the die/warn hooks */
		716	PL_diehook = 0;
		717	hv_store (hv_sig, "__DIE__", sizeof ("__DIE__") - 1, newSV (0), 0);
		718	PL_diehook = SvREFCNT_inc (rv_diehook);
		719
		720	PL_warnhook = 0;
		721	hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, newSV (0), 0);
		722	PL_warnhook = SvREFCNT_inc (rv_warnhook);
602		723
603	GvSV (PL_defgv) = NEWSV (0, 0);	724	GvSV (PL_defgv) = newSV (0);
604	GvAV (PL_defgv) = coro->args; coro->args = 0;	725	GvAV (PL_defgv) = coro->args; coro->args = 0;
605	GvSV (PL_errgv) = NEWSV (0, 0);	726	GvSV (PL_errgv) = newSV (0);
606	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	727	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
607	PL_rs = newSVsv (GvSV (irsgv));	728	PL_rs = newSVsv (GvSV (irsgv));
608		729	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
609	{
610	IO *io = newIO ();
611	PL_defoutgv = newGVgen ("Coro");
612	GvIOp(PL_defoutgv) = io;
613	IoTYPE (io) = IoTYPE_WRONLY;
614	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
615	IoFLAGS (io) \|= IOf_FLUSH;
616	}
617		730
618	{	731	{
619	dSP;	732	dSP;
620	LOGOP myop;	733	LOGOP myop;
621		734
622	Zero (&myop, 1, LOGOP);	735	Zero (&myop, 1, LOGOP);
623	myop.op_next = Nullop;	736	myop.op_next = Nullop;
624	myop.op_flags = OPf_WANT_VOID;	737	myop.op_flags = OPf_WANT_VOID;
625		738
626	PUSHMARK (SP);	739	PUSHMARK (SP);
627	XPUSHs (av_shift (GvAV (PL_defgv)));	740	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
628	PUTBACK;	741	PUTBACK;
629	PL_op = (OP *)&myop;	742	PL_op = (OP *)&myop;
630	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	743	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
631	SPAGAIN;	744	SPAGAIN;
632	}	745	}
633		746
634	ENTER; /* necessary e.g. for dounwind */	747	/* this newly created coroutine might be run on an existing cctx which most
		748	* likely was suspended in set_stacklevel, called from entersub.
		749	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		750	* so we ENTER here for symmetry
		751	*/
		752	ENTER;
635	}	753	}
636		754
637	static void	755	static void
638	coro_destroy (pTHX_ struct coro *coro)	756	coro_destroy (pTHX_ struct coro *coro)
639	{	757	{
…		…
659	SvREFCNT_dec (GvSV (PL_errgv));	777	SvREFCNT_dec (GvSV (PL_errgv));
660	SvREFCNT_dec (PL_defoutgv);	778	SvREFCNT_dec (PL_defoutgv);
661	SvREFCNT_dec (PL_rs);	779	SvREFCNT_dec (PL_rs);
662	SvREFCNT_dec (GvSV (irsgv));	780	SvREFCNT_dec (GvSV (irsgv));
663		781
		782	SvREFCNT_dec (PL_diehook);
		783	SvREFCNT_dec (PL_warnhook);
		784
		785	SvREFCNT_dec (coro->saved_deffh);
		786	SvREFCNT_dec (coro->throw);
		787
664	coro_destroy_stacks (aTHX);	788	coro_destroy_stacks (aTHX);
665	}	789	}
666		790
667	static void	791	static void
668	free_coro_mortal (pTHX)	792	free_coro_mortal (pTHX)
669	{	793	{
670	if (coro_mortal)	794	if (expect_true (coro_mortal))
671	{	795	{
672	SvREFCNT_dec (coro_mortal);	796	SvREFCNT_dec (coro_mortal);
673	coro_mortal = 0;	797	coro_mortal = 0;
674	}	798	}
675	}	799	}
…		…
704	bot = PL_stack_base + cx->blk_oldsp + 1;	828	bot = PL_stack_base + cx->blk_oldsp + 1;
705	top = cx->blk_gimme == G_ARRAY ? SP + 1	829	top = cx->blk_gimme == G_ARRAY ? SP + 1
706	: cx->blk_gimme == G_SCALAR ? bot + 1	830	: cx->blk_gimme == G_SCALAR ? bot + 1
707	: bot;	831	: bot;
708		832
		833	av_extend (av, top - bot);
709	while (bot < top)	834	while (bot < top)
710	av_push (av, SvREFCNT_inc (*bot++));	835	av_push (av, SvREFCNT_inc (*bot++));
711		836
712	PL_runops = RUNOPS_DEFAULT;	837	PL_runops = RUNOPS_DEFAULT;
713	ENTER;	838	ENTER;
…		…
799		924
800	/* inject a fake call to Coro::State::_cctx_init into the execution */	925	/* inject a fake call to Coro::State::_cctx_init into the execution */
801	/* _cctx_init should be careful, as it could be called at almost any time */	926	/* _cctx_init should be careful, as it could be called at almost any time */
802	/* during execution of a perl program */	927	/* during execution of a perl program */
803	static void NOINLINE	928	static void NOINLINE
804	prepare_cctx (pTHX_ coro_cctx *cctx)	929	cctx_prepare (pTHX_ coro_cctx *cctx)
805	{	930	{
806	dSP;	931	dSP;
807	LOGOP myop;	932	LOGOP myop;
808		933
809	PL_top_env = &PL_start_env;	934	PL_top_env = &PL_start_env;
…		…
827		952
828	/*	953	/*
829	* this is a _very_ stripped down perl interpreter ;)	954	* this is a _very_ stripped down perl interpreter ;)
830	*/	955	*/
831	static void	956	static void
832	coro_run (void *arg)	957	cctx_run (void *arg)
833	{	958	{
834	dTHX;	959	dTHX;
835		960
836	/* coro_run is the alternative tail of transfer(), so unlock here. */	961	/* cctx_run is the alternative tail of transfer(), so unlock here. */
837	UNLOCK;	962	UNLOCK;
838		963
839	/* we now skip the entersub that lead to transfer() */	964	/* we now skip the entersub that lead to transfer() */
840	PL_op = PL_op->op_next;	965	PL_op = PL_op->op_next;
841		966
842	/* inject a fake subroutine call to cctx_init */	967	/* inject a fake subroutine call to cctx_init */
843	prepare_cctx (aTHX_ (coro_cctx *)arg);	968	cctx_prepare (aTHX_ (coro_cctx *)arg);
844		969
845	/* somebody or something will hit me for both perl_run and PL_restartop */	970	/* somebody or something will hit me for both perl_run and PL_restartop */
846	PL_restartop = PL_op;	971	PL_restartop = PL_op;
847	perl_run (PL_curinterp);	972	perl_run (PL_curinterp);
848		973
…		…
867	++cctx_count;	992	++cctx_count;
868		993
869	Newz (0, cctx, 1, coro_cctx);	994	Newz (0, cctx, 1, coro_cctx);
870		995
871	#if HAVE_MMAP	996	#if HAVE_MMAP
872
873	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	997	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
874	/* mmap supposedly does allocate-on-write for us */	998	/* mmap supposedly does allocate-on-write for us */
875	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	999	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
876		1000
877	if (cctx->sptr != (void *)-1)	1001	if (cctx->sptr != (void *)-1)
…		…
898	stack_start = cctx->sptr;	1022	stack_start = cctx->sptr;
899	stack_size = cctx->ssize;	1023	stack_size = cctx->ssize;
900	}	1024	}
901		1025
902	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1026	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
903	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1027	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
904		1028
905	return cctx;	1029	return cctx;
906	}	1030	}
907		1031
908	static void	1032	static void
…		…
925	Safefree (cctx->sptr);	1049	Safefree (cctx->sptr);
926		1050
927	Safefree (cctx);	1051	Safefree (cctx);
928	}	1052	}
929		1053
		1054	/* wether this cctx should be destructed */
		1055	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1056
930	static coro_cctx *	1057	static coro_cctx *
931	cctx_get (pTHX)	1058	cctx_get (pTHX)
932	{	1059	{
933	while (cctx_first)	1060	while (expect_true (cctx_first))
934	{	1061	{
935	coro_cctx *cctx = cctx_first;	1062	coro_cctx *cctx = cctx_first;
936	cctx_first = cctx->next;	1063	cctx_first = cctx->next;
937	--cctx_idle;	1064	--cctx_idle;
938		1065
939	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1066	if (expect_true (!CCTX_EXPIRED (cctx)))
940	return cctx;	1067	return cctx;
941		1068
942	cctx_destroy (cctx);	1069	cctx_destroy (cctx);
943	}	1070	}
944		1071
…		…
947		1074
948	static void	1075	static void
949	cctx_put (coro_cctx *cctx)	1076	cctx_put (coro_cctx *cctx)
950	{	1077	{
951	/* free another cctx if overlimit */	1078	/* free another cctx if overlimit */
952	if (cctx_idle >= MAX_IDLE_CCTX)	1079	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
953	{	1080	{
954	coro_cctx *first = cctx_first;	1081	coro_cctx *first = cctx_first;
955	cctx_first = first->next;	1082	cctx_first = first->next;
956	--cctx_idle;	1083	--cctx_idle;
957		1084
…		…
963	cctx_first = cctx;	1090	cctx_first = cctx;
964	}	1091	}
965		1092
966	/ coroutine switching ***************************************************/	1093	/ coroutine switching ***************************************************/
967		1094
968	static void NOINLINE	1095	static void
969	transfer_check (pTHX_ struct coro prev, struct coro next)	1096	transfer_check (pTHX_ struct coro prev, struct coro next)
970	{	1097	{
971	if (prev != next)	1098	if (expect_true (prev != next))
972	{	1099	{
973	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1100	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
974	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1101	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
975		1102
976	if (next->flags & CF_RUNNING)	1103	if (expect_false (next->flags & CF_RUNNING))
977	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1104	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
978		1105
979	if (next->flags & CF_DESTROYED)	1106	if (expect_false (next->flags & CF_DESTROYED))
980	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1107	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
981		1108
		1109	if (
		1110	#if PERL_VERSION_ATLEAST (5,9,0)
		1111	expect_false (PL_parser)
		1112	#else
982	if (PL_lex_state != LEX_NOTPARSING)	1113	expect_false (PL_lex_state != LEX_NOTPARSING)
		1114	#endif
		1115	)
983	croak ("Coro::State::transfer called while parsing, but this is not supported");	1116	croak ("Coro::State::transfer called while parsing, but this is not supported");
984	}	1117	}
985	}	1118	}
986		1119
987	/* always use the TRANSFER macro */	1120	/* always use the TRANSFER macro */
988	static void NOINLINE	1121	static void NOINLINE
989	transfer (pTHX_ struct coro prev, struct coro next)	1122	transfer (pTHX_ struct coro prev, struct coro next)
990	{	1123	{
991	dSTACKLEVEL;	1124	dSTACKLEVEL;
		1125	static volatile int has_throw;
992		1126
993	/* sometimes transfer is only called to set idle_sp */	1127	/* sometimes transfer is only called to set idle_sp */
994	if (!next)	1128	if (expect_false (!next))
995	{	1129	{
996	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1130	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
997	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1131	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
998	}	1132	}
999	else if (prev != next)	1133	else if (expect_true (prev != next))
1000	{	1134	{
1001	coro_cctx *prev__cctx;	1135	coro_cctx *prev__cctx;
1002		1136
1003	if (prev->flags & CF_NEW)	1137	if (expect_false (prev->flags & CF_NEW))
1004	{	1138	{
1005	/* create a new empty context */	1139	/* create a new empty context */
1006	Newz (0, prev->cctx, 1, coro_cctx);	1140	Newz (0, prev->cctx, 1, coro_cctx);
1007	prev->flags &= ~CF_NEW;	1141	prev->flags &= ~CF_NEW;
1008	prev->flags \|= CF_RUNNING;	1142	prev->flags \|= CF_RUNNING;
…		…
1011	prev->flags &= ~CF_RUNNING;	1145	prev->flags &= ~CF_RUNNING;
1012	next->flags \|= CF_RUNNING;	1146	next->flags \|= CF_RUNNING;
1013		1147
1014	LOCK;	1148	LOCK;
1015		1149
		1150	/* first get rid of the old state */
		1151	save_perl (aTHX_ prev);
		1152
1016	if (next->flags & CF_NEW)	1153	if (expect_false (next->flags & CF_NEW))
1017	{	1154	{
1018	/* need to start coroutine */	1155	/* need to start coroutine */
1019	next->flags &= ~CF_NEW;	1156	next->flags &= ~CF_NEW;
1020	/* first get rid of the old state */
1021	save_perl (aTHX_ prev);
1022	/* setup coroutine call */	1157	/* setup coroutine call */
1023	coro_setup (aTHX_ next);	1158	coro_setup (aTHX_ next);
1024	}	1159	}
1025	else	1160	else
1026	{
1027	/* coroutine already started */
1028	save_perl (aTHX_ prev);
1029	load_perl (aTHX_ next);	1161	load_perl (aTHX_ next);
1030	}
1031		1162
1032	prev__cctx = prev->cctx;	1163	prev__cctx = prev->cctx;
1033		1164
1034	/* possibly "free" the cctx */	1165	/* possibly "free" the cctx */
1035	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1166	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1036	{	1167	{
1037	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1168	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1038	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1169	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1039		1170
1040	prev->cctx = 0;	1171	prev->cctx = 0;
1041		1172
		1173	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1174	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1175	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1176	if (!next->cctx)
		1177	next->cctx = cctx_get (aTHX);
		1178
1042	cctx_put (prev__cctx);	1179	cctx_put (prev__cctx);
1043	}	1180	}
1044		1181
1045	++next->usecount;	1182	++next->usecount;
1046		1183
1047	if (!next->cctx)	1184	if (expect_true (!next->cctx))
1048	next->cctx = cctx_get (aTHX);	1185	next->cctx = cctx_get (aTHX);
1049		1186
		1187	has_throw = !!next->throw;
		1188
1050	if (prev__cctx != next->cctx)	1189	if (expect_false (prev__cctx != next->cctx))
1051	{	1190	{
1052	prev__cctx->top_env = PL_top_env;	1191	prev__cctx->top_env = PL_top_env;
1053	PL_top_env = next->cctx->top_env;	1192	PL_top_env = next->cctx->top_env;
1054	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1193	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1055	}	1194	}
1056		1195
1057	free_coro_mortal (aTHX);	1196	free_coro_mortal (aTHX);
1058	UNLOCK;	1197	UNLOCK;
		1198
		1199	if (expect_false (has_throw))
		1200	{
		1201	struct coro *coro = SvSTATE (coro_current);
		1202
		1203	if (coro->throw)
		1204	{
		1205	SV *exception = coro->throw;
		1206	coro->throw = 0;
		1207	sv_setsv (ERRSV, exception);
		1208	croak (0);
		1209	}
		1210	}
1059	}	1211	}
1060	}	1212	}
1061		1213
1062	struct transfer_args	1214	struct transfer_args
1063	{	1215	{
…		…
1098	save_perl (aTHX_ &temp);	1250	save_perl (aTHX_ &temp);
1099	load_perl (aTHX_ coro);	1251	load_perl (aTHX_ coro);
1100		1252
1101	coro_destroy (aTHX_ coro);	1253	coro_destroy (aTHX_ coro);
1102		1254
1103	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1255	load_perl (aTHX_ &temp);
1104		1256
1105	coro->mainstack = 0;	1257	coro->slot = 0;
1106	}	1258	}
1107		1259
1108	cctx_destroy (coro->cctx);	1260	cctx_destroy (coro->cctx);
1109	SvREFCNT_dec (coro->args);	1261	SvREFCNT_dec (coro->args);
1110		1262
…		…
1178	{	1330	{
1179	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1331	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1180	}	1332	}
1181		1333
1182	static SV *	1334	static SV *
1183	coro_deq (pTHX_ int min_prio)	1335	coro_deq (pTHX)
1184	{	1336	{
1185	int prio = PRIO_MAX - PRIO_MIN;	1337	int prio;
1186		1338
1187	min_prio -= PRIO_MIN;
1188	if (min_prio < 0)
1189	min_prio = 0;
1190
1191	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1339	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1192	if (AvFILLp (coro_ready [prio]) >= 0)	1340	if (AvFILLp (coro_ready [prio]) >= 0)
1193	return av_shift (coro_ready [prio]);	1341	return av_shift (coro_ready [prio]);
1194		1342
1195	return 0;	1343	return 0;
1196	}	1344	}
…		…
1232	SV prev_sv, next_sv;	1380	SV prev_sv, next_sv;
1233		1381
1234	for (;;)	1382	for (;;)
1235	{	1383	{
1236	LOCK;	1384	LOCK;
1237	next_sv = coro_deq (aTHX_ PRIO_MIN);	1385	next_sv = coro_deq (aTHX);
1238		1386
1239	/* nothing to schedule: call the idle handler */	1387	/* nothing to schedule: call the idle handler */
1240	if (!next_sv)	1388	if (expect_false (!next_sv))
1241	{	1389	{
1242	dSP;	1390	dSP;
1243	UNLOCK;	1391	UNLOCK;
1244		1392
1245	ENTER;	1393	ENTER;
…		…
1255	}	1403	}
1256		1404
1257	ta->next = SvSTATE (next_sv);	1405	ta->next = SvSTATE (next_sv);
1258		1406
1259	/* cannot transfer to destroyed coros, skip and look for next */	1407	/* cannot transfer to destroyed coros, skip and look for next */
1260	if (ta->next->flags & CF_DESTROYED)	1408	if (expect_false (ta->next->flags & CF_DESTROYED))
1261	{	1409	{
1262	UNLOCK;	1410	UNLOCK;
1263	SvREFCNT_dec (next_sv);	1411	SvREFCNT_dec (next_sv);
1264	/* coro_nready is already taken care of by destroy */	1412	/* coro_nready is already taken care of by destroy */
1265	continue;	1413	continue;
…		…
1321	dTHX;	1469	dTHX;
1322	struct transfer_args ta;	1470	struct transfer_args ta;
1323		1471
1324	prepare_cede (aTHX_ &ta);	1472	prepare_cede (aTHX_ &ta);
1325		1473
1326	if (ta.prev != ta.next)	1474	if (expect_true (ta.prev != ta.next))
1327	{	1475	{
1328	TRANSFER (ta);	1476	TRANSFER (ta);
1329	return 1;	1477	return 1;
1330	}	1478	}
1331	else	1479	else
…		…
1367	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1515	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1368		1516
1369	if (coro->flags & CF_RUNNING)	1517	if (coro->flags & CF_RUNNING)
1370	PL_runops = RUNOPS_DEFAULT;	1518	PL_runops = RUNOPS_DEFAULT;
1371	else	1519	else
1372	coro->runops = RUNOPS_DEFAULT;	1520	coro->slot->runops = RUNOPS_DEFAULT;
1373	}	1521	}
1374	}	1522	}
1375		1523
1376	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1524	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1377		1525
…		…
1382	#ifdef USE_ITHREADS	1530	#ifdef USE_ITHREADS
1383	MUTEX_INIT (&coro_mutex);	1531	MUTEX_INIT (&coro_mutex);
1384	#endif	1532	#endif
1385	BOOT_PAGESIZE;	1533	BOOT_PAGESIZE;
1386		1534
1387	irsgv = gv_fetchpv ("/", 1, SVt_PV);	1535	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1536	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1537	#if 0
		1538	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1539	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1540	#endif
		1541	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1542	rv_diehook = SvREFCNT_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1543	rv_warnhook = SvREFCNT_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1388		1544
1389	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1545	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1390		1546
1391	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1547	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1392	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1548	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1398		1554
1399	while (main_top_env->je_prev)	1555	while (main_top_env->je_prev)
1400	main_top_env = main_top_env->je_prev;	1556	main_top_env = main_top_env->je_prev;
1401		1557
1402	coroapi.ver = CORO_API_VERSION;	1558	coroapi.ver = CORO_API_VERSION;
		1559	coroapi.rev = CORO_API_REVISION;
1403	coroapi.transfer = api_transfer;	1560	coroapi.transfer = api_transfer;
1404		1561
1405	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1562	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1406	}	1563	}
1407		1564
1408	SV *	1565	SV *
1409	new (char *klass, ...)	1566	new (char *klass, ...)
1410	CODE:	1567	CODE:
1411	{	1568	{
1412	struct coro *coro;	1569	struct coro *coro;
		1570	MAGIC *mg;
1413	HV *hv;	1571	HV *hv;
1414	int i;	1572	int i;
1415		1573
1416	Newz (0, coro, 1, struct coro);	1574	Newz (0, coro, 1, struct coro);
1417	coro->args = newAV ();	1575	coro->args = newAV ();
…		…
1420	if (coro_first) coro_first->prev = coro;	1578	if (coro_first) coro_first->prev = coro;
1421	coro->next = coro_first;	1579	coro->next = coro_first;
1422	coro_first = coro;	1580	coro_first = coro;
1423		1581
1424	coro->hv = hv = newHV ();	1582	coro->hv = hv = newHV ();
1425	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1583	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1584	mg->mg_flags \|= MGf_DUP;
1426	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1585	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1427		1586
		1587	av_extend (coro->args, items - 1);
1428	for (i = 1; i < items; i++)	1588	for (i = 1; i < items; i++)
1429	av_push (coro->args, newSVsv (ST (i)));	1589	av_push (coro->args, newSVsv (ST (i)));
1430	}	1590	}
1431	OUTPUT:	1591	OUTPUT:
1432	RETVAL	1592	RETVAL
…		…
1473		1633
1474	break;	1634	break;
1475	}	1635	}
1476		1636
1477	BARRIER;	1637	BARRIER;
		1638	PUTBACK;
1478	TRANSFER (ta);	1639	TRANSFER (ta);
1479		1640	SPAGAIN; /* might be the sp of a different coroutine now */
1480	if (GIMME_V != G_VOID && ta.next != ta.prev)	1641	/* be extra careful not to ever do anything after TRANSFER */
1481	XSRETURN_YES;
1482	}	1642	}
1483		1643
1484	bool	1644	bool
1485	_destroy (SV *coro_sv)	1645	_destroy (SV *coro_sv)
1486	CODE:	1646	CODE:
…		…
1535	CODE:	1695	CODE:
1536	{	1696	{
1537	if (coro->mainstack)	1697	if (coro->mainstack)
1538	{	1698	{
1539	struct coro temp;	1699	struct coro temp;
1540	Zero (&temp, 1, struct coro);
1541		1700
1542	if (!(coro->flags & CF_RUNNING))	1701	if (!(coro->flags & CF_RUNNING))
1543	{	1702	{
1544	save_perl (aTHX_ &temp);	1703	save_perl (aTHX_ &temp);
1545	load_perl (aTHX_ coro);	1704	load_perl (aTHX_ coro);
…		…
1547		1706
1548	{	1707	{
1549	dSP;	1708	dSP;
1550	ENTER;	1709	ENTER;
1551	SAVETMPS;	1710	SAVETMPS;
		1711	PUTBACK;
		1712	PUSHSTACK;
1552	PUSHMARK (SP);	1713	PUSHMARK (SP);
1553	PUTBACK;	1714
1554	if (ix)	1715	if (ix)
1555	eval_sv (coderef, 0);	1716	eval_sv (coderef, 0);
1556	else	1717	else
1557	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1718	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1719
		1720	POPSTACK;
1558	SPAGAIN;	1721	SPAGAIN;
1559	FREETMPS;	1722	FREETMPS;
1560	LEAVE;	1723	LEAVE;
1561	PUTBACK;	1724	PUTBACK;
1562	}	1725	}
…		…
1620		1783
1621	BOOT:	1784	BOOT:
1622	{	1785	{
1623	int i;	1786	int i;
1624		1787
1625	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1788	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1626	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1789	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1627	av_async_pool = get_av ("Coro::async_pool", TRUE);	1790	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1628		1791
1629	coro_current = get_sv ("Coro::current", FALSE);	1792	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1630	SvREADONLY_on (coro_current);	1793	SvREADONLY_on (coro_current);
1631		1794
1632	coro_stash = gv_stashpv ("Coro", TRUE);	1795	coro_stash = gv_stashpv ("Coro", TRUE);
1633		1796
1634	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1797	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1635	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1798	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1636	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1799	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1637	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1800	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1640		1803
1641	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1804	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1642	coro_ready[i] = newAV ();	1805	coro_ready[i] = newAV ();
1643		1806
1644	{	1807	{
1645	SV *sv = perl_get_sv("Coro::API", 1);	1808	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1809	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1646		1810
1647	coroapi.schedule = api_schedule;	1811	coroapi.schedule = api_schedule;
1648	coroapi.cede = api_cede;	1812	coroapi.cede = api_cede;
1649	coroapi.cede_notself = api_cede_notself;	1813	coroapi.cede_notself = api_cede_notself;
1650	coroapi.ready = api_ready;	1814	coroapi.ready = api_ready;
…		…
1701	CODE:	1865	CODE:
1702	RETVAL = coro_nready;	1866	RETVAL = coro_nready;
1703	OUTPUT:	1867	OUTPUT:
1704	RETVAL	1868	RETVAL
1705		1869
		1870	void
		1871	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1872	PROTOTYPE: $;$
		1873	CODE:
		1874	SvREFCNT_dec (self->throw);
		1875	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1876
1706	# for async_pool speedup	1877	# for async_pool speedup
1707	void	1878	void
1708	_pool_1 (SV *cb)	1879	_pool_1 (SV *cb)
1709	CODE:	1880	CODE:
1710	{	1881	{
1711	int i, len;	1882	struct coro *coro = SvSTATE (coro_current);
1712	HV hv = (HV )SvRV (coro_current);	1883	HV hv = (HV )SvRV (coro_current);
1713	AV *defav = GvAV (PL_defgv);	1884	AV *defav = GvAV (PL_defgv);
1714	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1885	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1715	AV *invoke_av;	1886	AV *invoke_av;
		1887	int i, len;
1716		1888
1717	if (!invoke)	1889	if (!invoke)
1718	croak ("\3terminate\2\n");	1890	croak ("\3async_pool terminate\2\n");
		1891
		1892	SvREFCNT_dec (coro->saved_deffh);
		1893	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1719		1894
1720	hv_store (hv, "desc", sizeof ("desc") - 1,	1895	hv_store (hv, "desc", sizeof ("desc") - 1,
1721	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1896	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1722		1897
1723	invoke_av = (AV *)SvRV (invoke);	1898	invoke_av = (AV *)SvRV (invoke);
…		…
1741	{	1916	{
1742	struct coro *coro = SvSTATE (coro_current);	1917	struct coro *coro = SvSTATE (coro_current);
1743		1918
1744	sv_setsv (cb, &PL_sv_undef);	1919	sv_setsv (cb, &PL_sv_undef);
1745		1920
		1921	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1922	coro->saved_deffh = 0;
		1923
1746	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1924	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1747	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1925	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1748	croak ("\3terminate\2\n");	1926	croak ("\3async_pool terminate\2\n");
1749		1927
1750	av_clear (GvAV (PL_defgv));	1928	av_clear (GvAV (PL_defgv));
1751	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1929	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1752	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1930	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1753		1931

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Comparing Coro/Coro/State.xs (file contents): Revision 1.180 by root, Wed Oct 3 17:12:20 2007 UTC vs. Revision 1.218 by root, Mon Dec 3 00:41:45 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.180 by root, Wed Oct 3 17:12:20 2007 UTC vs.
Revision 1.218 by root, Mon Dec 3 00:41:45 2007 UTC