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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.178 by root, Wed Oct 3 01:48:06 2007 UTC vs.
Revision 1.210 by root, Wed Oct 10 03:24:40 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
…		…
116	#else	131	#else
117	# define LOCK (void)0	132	# define LOCK (void)0
118	# define UNLOCK (void)0	133	# define UNLOCK (void)0
119	#endif	134	#endif
120		135
		136	#define strpair(const) const, sizeof (const) - 1
		137
121	/* helper storage struct for Coro::AIO */	138	/* helper storage struct for Coro::AIO */
122	struct io_state	139	struct io_state
123	{	140	{
124	int errorno;	141	int errorno;
125	I32 laststype;	142	I32 laststype;
…		…
132	static AV main_mainstack; / used to differentiate between $main and others */	149	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	150	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	151	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	152	static SV coro_mortal; / will be freed after next transfer */
136		153
137	static GV irsgv; / $/ */	154	static GV irsgv; / $/ */
		155	static GV stdoutgv; / STDOUT /
		156
		157	static HV hv_sig; / %SIG */
		158	static SV *sv_diehook;
		159	static SV *sv_warnhook;
138		160
139	/* async_pool helper stuff */	161	/* async_pool helper stuff */
140	static SV *sv_pool_rss;	162	static SV *sv_pool_rss;
141	static SV *sv_pool_size;	163	static SV *sv_pool_size;
142	static AV *av_async_pool;	164	static AV *av_async_pool;
143		165
144	static struct coro_cctx *cctx_first;	166	static struct coro_cctx cctx_first[3]; / index by GIMME_V type, void, scalar, array */
145	static int cctx_count, cctx_idle;	167	static int cctx_count, cctx_idle[3];
146		168
147	enum {	169	enum {
148	CC_MAPPED = 0x01,	170	CC_MAPPED = 0x01,
149	CC_NOREUSE = 0x02, /* throw this away after tracing */	171	CC_NOREUSE = 0x02, /* throw this away after tracing */
150	CC_TRACE = 0x04,	172	CC_TRACE = 0x04,
…		…
178	CF_READY = 0x0002, /* coroutine is ready */	200	CF_READY = 0x0002, /* coroutine is ready */
179	CF_NEW = 0x0004, /* has never been switched to */	201	CF_NEW = 0x0004, /* has never been switched to */
180	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	202	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
181	};	203	};
182		204
		205	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		206	typedef struct {
		207	SV *defsv;
		208	AV *defav;
		209	SV *errsv;
		210	SV *irsgv;
		211	#define VAR(name,type) type name;
		212	# include "state.h"
		213	#undef VAR
		214	} perl_slots;
		215
		216	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		217
183	/* this is a structure representing a perl-level coroutine */	218	/* this is a structure representing a perl-level coroutine */
184	struct coro {	219	struct coro {
185	/* the c coroutine allocated to this perl coroutine, if any */	220	/* the c coroutine allocated to this perl coroutine, if any */
186	coro_cctx *cctx;	221	coro_cctx *cctx;
		222	int gimme;
187		223
		224	/* process data */
		225	AV *mainstack;
		226	perl_slots slot; / basically the saved sp */
		227
188	/* data associated with this coroutine (initial args) */	228	AV args; / data associated with this coroutine (initial args) */
189	AV *args;	229	int refcnt; /* coroutines are refcounted, yes */
190	int refcnt;
191	int flags; /* CF_ flags */	230	int flags; /* CF_ flags */
192		231	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		232
205	/* statistics */	233	/* statistics */
206	int usecount; /* number of switches to this coro */	234	int usecount; /* number of transfers to this coro */
207		235
208	/* coro process data */	236	/* coro process data */
209	int prio;	237	int prio;
		238	SV throw; / exception to be thrown */
		239
		240	/* async_pool */
		241	SV *saved_deffh;
210		242
211	/* linked list */	243	/* linked list */
212	struct coro next, prev;	244	struct coro next, prev;
213	HV hv; / the perl hash associated with this coro, if any */
214	};	245	};
215		246
216	typedef struct coro *Coro__State;	247	typedef struct coro *Coro__State;
217	typedef struct coro *Coro__State_or_hashref;	248	typedef struct coro *Coro__State_or_hashref;
218		249
…		…
230	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	261	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
231	static int coro_nready;	262	static int coro_nready;
232	static struct coro *coro_first;	263	static struct coro *coro_first;
233		264
234	/ lowlevel stuff ********************************************************/	265	/ lowlevel stuff ********************************************************/
		266
		267	static SV *
		268	coro_get_sv (const char *name, int create)
		269	{
		270	#if PERL_VERSION_ATLEAST (5,9,0)
		271	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		272	get_sv (name, create);
		273	#endif
		274	return get_sv (name, create);
		275	}
		276
		277	static AV *
		278	coro_get_av (const char *name, int create)
		279	{
		280	#if PERL_VERSION_ATLEAST (5,9,0)
		281	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		282	get_av (name, create);
		283	#endif
		284	return get_av (name, create);
		285	}
		286
		287	static HV *
		288	coro_get_hv (const char *name, int create)
		289	{
		290	#if PERL_VERSION_ATLEAST (5,9,0)
		291	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		292	get_hv (name, create);
		293	#endif
		294	return get_hv (name, create);
		295	}
235		296
236	static AV *	297	static AV *
237	coro_clone_padlist (pTHX_ CV *cv)	298	coro_clone_padlist (pTHX_ CV *cv)
238	{	299	{
239	AV *padlist = CvPADLIST (cv);	300	AV *padlist = CvPADLIST (cv);
…		…
312	MAGIC *mg;	373	MAGIC *mg;
313		374
314	if (SvROK (coro))	375	if (SvROK (coro))
315	coro = SvRV (coro);	376	coro = SvRV (coro);
316		377
317	if (SvTYPE (coro) != SVt_PVHV)	378	if (expect_false (SvTYPE (coro) != SVt_PVHV))
318	croak ("Coro::State object required");	379	croak ("Coro::State object required");
319		380
320	stash = SvSTASH (coro);	381	stash = SvSTASH (coro);
321	if (stash != coro_stash && stash != coro_state_stash)	382	if (expect_false (stash != coro_stash && stash != coro_state_stash))
322	{	383	{
323	/* very slow, but rare, check */	384	/* very slow, but rare, check */
324	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	385	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
325	croak ("Coro::State object required");	386	croak ("Coro::State object required");
326	}	387	}
…		…
336	get_padlist (pTHX_ CV *cv)	397	get_padlist (pTHX_ CV *cv)
337	{	398	{
338	MAGIC *mg = CORO_MAGIC (cv);	399	MAGIC *mg = CORO_MAGIC (cv);
339	AV *av;	400	AV *av;
340		401
341	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	402	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
342	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	403	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
343	else	404	else
344	{	405	{
345	#if CORO_PREFER_PERL_FUNCTIONS	406	#if CORO_PREFER_PERL_FUNCTIONS
346	/* this is probably cleaner, but also slower? */	407	/* this is probably cleaner, but also slower? */
…		…
358	put_padlist (pTHX_ CV *cv)	419	put_padlist (pTHX_ CV *cv)
359	{	420	{
360	MAGIC *mg = CORO_MAGIC (cv);	421	MAGIC *mg = CORO_MAGIC (cv);
361	AV *av;	422	AV *av;
362		423
363	if (!mg)	424	if (expect_false (!mg))
364	{	425	{
365	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	426	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
366	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	427	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
367	mg->mg_virtual = &vtbl_coro;	428	mg->mg_virtual = &vtbl_coro;
368	mg->mg_obj = (SV *)newAV ();	429	mg->mg_obj = (SV *)newAV ();
369	}	430	}
370		431
371	av = (AV *)mg->mg_obj;	432	av = (AV *)mg->mg_obj;
372		433
373	if (AvFILLp (av) >= AvMAX (av))	434	if (expect_false (AvFILLp (av) >= AvMAX (av)))
374	av_extend (av, AvMAX (av) + 1);	435	av_extend (av, AvMAX (av) + 1);
375		436
376	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	437	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
377	}	438	}
378		439
379	/ load & save, init *****************************************************/	440	/ load & save, init *****************************************************/
380		441
381	static void	442	static void
382	load_perl (pTHX_ Coro__State c)	443	load_perl (pTHX_ Coro__State c)
383	{	444	{
		445	perl_slots *slot = c->slot;
		446	c->slot = 0;
		447
		448	PL_mainstack = c->mainstack;
		449
		450	GvSV (PL_defgv) = slot->defsv;
		451	GvAV (PL_defgv) = slot->defav;
		452	GvSV (PL_errgv) = slot->errsv;
		453	GvSV (irsgv) = slot->irsgv;
		454
384	#define VAR(name,type) PL_ ## name = c->name;	455	#define VAR(name,type) PL_ ## name = slot->name;
385	# include "state.h"	456	# include "state.h"
386	#undef VAR	457	#undef VAR
387		458
388	GvSV (PL_defgv) = c->defsv;	459	/hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);/
389	GvAV (PL_defgv) = c->defav;	460	/hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);/
390	GvSV (PL_errgv) = c->errsv;
391	GvIOp(PL_defoutgv) = c->deffh;
392	PL_rs = c->irssv;
393	GvSV (irsgv) = c->irssv_sv;
394		461
395	{	462	{
396	dSP;	463	dSP;
		464
397	CV *cv;	465	CV *cv;
398		466
399	/* now do the ugly restore mess */	467	/* now do the ugly restore mess */
400	while ((cv = (CV *)POPs))	468	while (expect_true (cv = (CV *)POPs))
401	{	469	{
402	put_padlist (aTHX_ cv); /* mark this padlist as available */	470	put_padlist (aTHX_ cv); /* mark this padlist as available */
403	CvDEPTH (cv) = PTR2IV (POPs);	471	CvDEPTH (cv) = PTR2IV (POPs);
404	CvPADLIST (cv) = (AV *)POPs;	472	CvPADLIST (cv) = (AV *)POPs;
405	}	473	}
…		…
424		492
425	XPUSHs (Nullsv);	493	XPUSHs (Nullsv);
426	/* this loop was inspired by pp_caller */	494	/* this loop was inspired by pp_caller */
427	for (;;)	495	for (;;)
428	{	496	{
429	while (cxix >= 0)	497	while (expect_true (cxix >= 0))
430	{	498	{
431	PERL_CONTEXT *cx = &ccstk[cxix--];	499	PERL_CONTEXT *cx = &ccstk[cxix--];
432		500
433	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	501	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
434	{	502	{
435	CV *cv = cx->blk_sub.cv;	503	CV *cv = cx->blk_sub.cv;
436		504
437	if (CvDEPTH (cv))	505	if (expect_true (CvDEPTH (cv)))
438	{	506	{
439	EXTEND (SP, 3);	507	EXTEND (SP, 3);
440	PUSHs ((SV *)CvPADLIST (cv));	508	PUSHs ((SV *)CvPADLIST (cv));
441	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	509	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
442	PUSHs ((SV *)cv);	510	PUSHs ((SV *)cv);
…		…
445	get_padlist (aTHX_ cv);	513	get_padlist (aTHX_ cv);
446	}	514	}
447	}	515	}
448	}	516	}
449		517
450	if (top_si->si_type == PERLSI_MAIN)	518	if (expect_true (top_si->si_type == PERLSI_MAIN))
451	break;	519	break;
452		520
453	top_si = top_si->si_prev;	521	top_si = top_si->si_prev;
454	ccstk = top_si->si_cxstack;	522	ccstk = top_si->si_cxstack;
455	cxix = top_si->si_cxix;	523	cxix = top_si->si_cxix;
456	}	524	}
457		525
458	PUTBACK;	526	PUTBACK;
459	}	527	}
460		528
		529	/* allocate some space on the context stack for our purposes */
		530	/* we manually unroll here, as usually 2 slots is enough */
		531	if (SLOT_COUNT >= 1) CXINC;
		532	if (SLOT_COUNT >= 2) CXINC;
		533	if (SLOT_COUNT >= 3) CXINC;
		534	{
		535	int i;
		536	for (i = 3; i < SLOT_COUNT; ++i)
		537	CXINC;
		538	}
		539	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		540
		541	c->mainstack = PL_mainstack;
		542
		543	{
		544	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		545
461	c->defav = GvAV (PL_defgv);	546	slot->defav = GvAV (PL_defgv);
462	c->defsv = DEFSV;	547	slot->defsv = DEFSV;
463	c->errsv = ERRSV;	548	slot->errsv = ERRSV;
464	c->deffh = GvIOp (PL_defoutgv);
465	c->irssv = PL_rs;
466	c->irssv_sv = GvSV (irsgv);	549	slot->irsgv = GvSV (irsgv);
467		550
468	#define VAR(name,type)c->name = PL_ ## name;	551	#define VAR(name,type) slot->name = PL_ ## name;
469	# include "state.h"	552	# include "state.h"
470	#undef VAR	553	#undef VAR
		554	}
471	}	555	}
472		556
473	/*	557	/*
474	* allocate various perl stacks. This is an exact copy	558	* allocate various perl stacks. This is an exact copy
475	* of perl.c:init_stacks, except that it uses less memory	559	* of perl.c:init_stacks, except that it uses less memory
…		…
480	# define coro_init_stacks init_stacks	564	# define coro_init_stacks init_stacks
481	#else	565	#else
482	static void	566	static void
483	coro_init_stacks (pTHX)	567	coro_init_stacks (pTHX)
484	{	568	{
485	PL_curstackinfo = new_stackinfo(64, 6);	569	PL_curstackinfo = new_stackinfo(32, 8);
486	PL_curstackinfo->si_type = PERLSI_MAIN;	570	PL_curstackinfo->si_type = PERLSI_MAIN;
487	PL_curstack = PL_curstackinfo->si_stack;	571	PL_curstack = PL_curstackinfo->si_stack;
488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	572	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
489		573
490	PL_stack_base = AvARRAY(PL_curstack);	574	PL_stack_base = AvARRAY(PL_curstack);
491	PL_stack_sp = PL_stack_base;	575	PL_stack_sp = PL_stack_base;
492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	576	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
493		577
494	New(50,PL_tmps_stack,64,SV*);	578	New(50,PL_tmps_stack,32,SV*);
495	PL_tmps_floor = -1;	579	PL_tmps_floor = -1;
496	PL_tmps_ix = -1;	580	PL_tmps_ix = -1;
497	PL_tmps_max = 64;	581	PL_tmps_max = 32;
498		582
499	New(54,PL_markstack,16,I32);	583	New(54,PL_markstack,16,I32);
500	PL_markstack_ptr = PL_markstack;	584	PL_markstack_ptr = PL_markstack;
501	PL_markstack_max = PL_markstack + 16;	585	PL_markstack_max = PL_markstack + 16;
502		586
503	#ifdef SET_MARK_OFFSET	587	#ifdef SET_MARK_OFFSET
504	SET_MARK_OFFSET;	588	SET_MARK_OFFSET;
505	#endif	589	#endif
506		590
507	New(54,PL_scopestack,16,I32);	591	New(54,PL_scopestack,8,I32);
508	PL_scopestack_ix = 0;	592	PL_scopestack_ix = 0;
509	PL_scopestack_max = 16;	593	PL_scopestack_max = 8;
510		594
511	New(54,PL_savestack,64,ANY);	595	New(54,PL_savestack,24,ANY);
512	PL_savestack_ix = 0;	596	PL_savestack_ix = 0;
513	PL_savestack_max = 64;	597	PL_savestack_max = 24;
514		598
515	#if !PERL_VERSION_ATLEAST (5,9,0)	599	#if !PERL_VERSION_ATLEAST (5,9,0)
516	New(54,PL_retstack,4,OP*);	600	New(54,PL_retstack,4,OP*);
517	PL_retstack_ix = 0;	601	PL_retstack_ix = 0;
518	PL_retstack_max = 4;	602	PL_retstack_max = 4;
…		…
551	}	635	}
552		636
553	static size_t	637	static size_t
554	coro_rss (pTHX_ struct coro *coro)	638	coro_rss (pTHX_ struct coro *coro)
555	{	639	{
556	size_t rss = sizeof (coro);	640	size_t rss = sizeof (*coro);
557		641
558	if (coro->mainstack)	642	if (coro->mainstack)
559	{	643	{
		644	perl_slots tmp_slot;
		645	perl_slots *slot;
		646
560	if (coro->flags & CF_RUNNING)	647	if (coro->flags & CF_RUNNING)
561	{	648	{
		649	slot = &tmp_slot;
		650
562	#define VAR(name,type)coro->name = PL_ ## name;	651	#define VAR(name,type) slot->name = PL_ ## name;
563	# include "state.h"	652	# include "state.h"
564	#undef VAR	653	#undef VAR
565	}	654	}
		655	else
		656	slot = coro->slot;
566		657
567	rss += sizeof (coro->curstackinfo);	658	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);	659	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
570	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	660	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
571	rss += coro->tmps_max * sizeof (SV *);	661	rss += slot->tmps_max * sizeof (SV *);
572	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	662	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
573	rss += coro->scopestack_max * sizeof (I32);	663	rss += slot->scopestack_max * sizeof (I32);
574	rss += coro->savestack_max * sizeof (ANY);	664	rss += slot->savestack_max * sizeof (ANY);
575		665
576	#if !PERL_VERSION_ATLEAST (5,9,0)	666	#if !PERL_VERSION_ATLEAST (5,9,0)
577	rss += coro->retstack_max * sizeof (OP *);	667	rss += slot->retstack_max * sizeof (OP *);
578	#endif	668	#endif
579	}	669	}
580		670
581	return rss;	671	return rss;
582	}	672	}
583		673
584	/ coroutine stack handling **********************************************/	674	/ coroutine stack handling **********************************************/
585		675
586	static void	676	static void
587	setup_coro (pTHX_ struct coro *coro)	677	coro_setup (pTHX_ struct coro *coro)
588	{	678	{
589	/*	679	/*
590	* emulate part of the perl startup here.	680	* emulate part of the perl startup here.
591	*/	681	*/
592	coro_init_stacks (aTHX);	682	coro_init_stacks (aTHX);
…		…
594	PL_runops = RUNOPS_DEFAULT;	684	PL_runops = RUNOPS_DEFAULT;
595	PL_curcop = &PL_compiling;	685	PL_curcop = &PL_compiling;
596	PL_in_eval = EVAL_NULL;	686	PL_in_eval = EVAL_NULL;
597	PL_comppad = 0;	687	PL_comppad = 0;
598	PL_curpm = 0;	688	PL_curpm = 0;
		689	PL_curpad = 0;
599	PL_localizing = 0;	690	PL_localizing = 0;
600	PL_dirty = 0;	691	PL_dirty = 0;
601	PL_restartop = 0;	692	PL_restartop = 0;
		693	PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
		694	PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
602		695
603	GvSV (PL_defgv) = NEWSV (0, 0);	696	GvSV (PL_defgv) = newSV (0);
604	GvAV (PL_defgv) = coro->args; coro->args = 0;	697	GvAV (PL_defgv) = coro->args; coro->args = 0;
605	GvSV (PL_errgv) = NEWSV (0, 0);	698	GvSV (PL_errgv) = newSV (0);
606	GvSV (irsgv) = newSVsv (PL_rs);	699	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
607	PL_rs = newSVpvn ("\n", 1);	700	PL_rs = newSVsv (GvSV (irsgv));
608		701	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
609	{
610	IO *io = newIO ();
611	GvIOp(PL_defoutgv) = io;
612	IoTYPE (io) = IoTYPE_WRONLY;
613	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
614	IoFLAGS (io) \|= IOf_FLUSH;
615	}
616		702
617	{	703	{
618	dSP;	704	dSP;
619	LOGOP myop;	705	LOGOP myop;
620		706
621	Zero (&myop, 1, LOGOP);	707	Zero (&myop, 1, LOGOP);
622	myop.op_next = Nullop;	708	myop.op_next = Nullop;
623	myop.op_flags = OPf_WANT_VOID;	709	myop.op_flags = OPf_WANT_VOID;
624		710
625	PUSHMARK (SP);	711	PUSHMARK (SP);
626	XPUSHs (av_shift (GvAV (PL_defgv)));	712	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
627	PUTBACK;	713	PUTBACK;
628	PL_op = (OP *)&myop;	714	PL_op = (OP *)&myop;
629	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	715	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
630	SPAGAIN;	716	SPAGAIN;
		717
		718	/*
		719	* now its very tricky. the "tail" of the next transfer might end up
		720	* either in a new cctx, or an existing one.
		721	* in case of an existing one we have to take care of whatever
		722	* entersub and transfer do to the perl stack.
		723	*/
		724	ENTER;
		725	EXTEND (SP, 4);
		726	PUSHs ((SV )0); / items */
		727	PUSHs ((SV )0); / ix, set_stacklevel */
		728	PUSHs ((SV )(sp - PL_stack_base + 1)); / ax */
		729	PUSHs ((SV )0); / again */
		730	PUTBACK;
631	}	731	}
632		732
633	ENTER; /* necessary e.g. for dounwind */	733	/* this newly created coroutine might be run on an existing cctx which most
		734	* likely was suspended in set_stacklevel, called from entersub.
		735	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		736	* so we ENTER here for symmetry
		737	*/
		738	ENTER;
634	}	739	}
635		740
636	static void	741	static void
637	destroy_coro (pTHX_ struct coro *coro)	742	coro_destroy (pTHX_ struct coro *coro)
638	{	743	{
639	if (!IN_DESTRUCT)	744	if (!IN_DESTRUCT)
640	{	745	{
641	/* restore all saved variables and stuff */	746	/* restore all saved variables and stuff */
642	LEAVE_SCOPE (0);	747	LEAVE_SCOPE (0);
…		…
654	}	759	}
655		760
656	SvREFCNT_dec (GvSV (PL_defgv));	761	SvREFCNT_dec (GvSV (PL_defgv));
657	SvREFCNT_dec (GvAV (PL_defgv));	762	SvREFCNT_dec (GvAV (PL_defgv));
658	SvREFCNT_dec (GvSV (PL_errgv));	763	SvREFCNT_dec (GvSV (PL_errgv));
659	SvREFCNT_dec (GvIOp(PL_defoutgv));	764	SvREFCNT_dec (PL_defoutgv);
660	SvREFCNT_dec (PL_rs);	765	SvREFCNT_dec (PL_rs);
661	SvREFCNT_dec (GvSV (irsgv));	766	SvREFCNT_dec (GvSV (irsgv));
662		767
		768	SvREFCNT_dec (PL_diehook);
		769	SvREFCNT_dec (PL_warnhook);
		770
		771	SvREFCNT_dec (coro->saved_deffh);
		772	SvREFCNT_dec (coro->throw);
		773
663	coro_destroy_stacks (aTHX);	774	coro_destroy_stacks (aTHX);
664	}	775	}
665		776
666	static void	777	static void
667	free_coro_mortal (pTHX)	778	free_coro_mortal (pTHX)
668	{	779	{
669	if (coro_mortal)	780	if (expect_true (coro_mortal))
670	{	781	{
671	SvREFCNT_dec (coro_mortal);	782	SvREFCNT_dec (coro_mortal);
672	coro_mortal = 0;	783	coro_mortal = 0;
673	}	784	}
674	}	785	}
…		…
703	bot = PL_stack_base + cx->blk_oldsp + 1;	814	bot = PL_stack_base + cx->blk_oldsp + 1;
704	top = cx->blk_gimme == G_ARRAY ? SP + 1	815	top = cx->blk_gimme == G_ARRAY ? SP + 1
705	: cx->blk_gimme == G_SCALAR ? bot + 1	816	: cx->blk_gimme == G_SCALAR ? bot + 1
706	: bot;	817	: bot;
707		818
		819	av_extend (av, top - bot);
708	while (bot < top)	820	while (bot < top)
709	av_push (av, SvREFCNT_inc (*bot++));	821	av_push (av, SvREFCNT_inc (*bot++));
710		822
711	PL_runops = RUNOPS_DEFAULT;	823	PL_runops = RUNOPS_DEFAULT;
712	ENTER;	824	ENTER;
…		…
715	PUSHMARK (SP);	827	PUSHMARK (SP);
716	PUSHs (&PL_sv_no);	828	PUSHs (&PL_sv_no);
717	PUSHs (fullname);	829	PUSHs (fullname);
718	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	830	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
719	PUTBACK;	831	PUTBACK;
720	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	832	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
721	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	833	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
722	SPAGAIN;	834	SPAGAIN;
723	FREETMPS;	835	FREETMPS;
724	LEAVE;	836	LEAVE;
725	PL_runops = runops_trace;	837	PL_runops = runops_trace;
…		…
754	PUSHMARK (SP);	866	PUSHMARK (SP);
755	PUSHs (&PL_sv_yes);	867	PUSHs (&PL_sv_yes);
756	PUSHs (fullname);	868	PUSHs (fullname);
757	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	869	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
758	PUTBACK;	870	PUTBACK;
759	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	871	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
760	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	872	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
761	SPAGAIN;	873	SPAGAIN;
762	FREETMPS;	874	FREETMPS;
763	LEAVE;	875	LEAVE;
764	PL_runops = runops_trace;	876	PL_runops = runops_trace;
…		…
778	PL_runops = RUNOPS_DEFAULT;	890	PL_runops = RUNOPS_DEFAULT;
779	PUSHMARK (SP);	891	PUSHMARK (SP);
780	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	892	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
781	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	893	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
782	PUTBACK;	894	PUTBACK;
783	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);	895	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);
784	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	896	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
785	SPAGAIN;	897	SPAGAIN;
786	FREETMPS;	898	FREETMPS;
787	LEAVE;	899	LEAVE;
788	PL_runops = runops_trace;	900	PL_runops = runops_trace;
…		…
798		910
799	/* inject a fake call to Coro::State::_cctx_init into the execution */	911	/* inject a fake call to Coro::State::_cctx_init into the execution */
800	/* _cctx_init should be careful, as it could be called at almost any time */	912	/* _cctx_init should be careful, as it could be called at almost any time */
801	/* during execution of a perl program */	913	/* during execution of a perl program */
802	static void NOINLINE	914	static void NOINLINE
803	prepare_cctx (pTHX_ coro_cctx *cctx)	915	cctx_prepare (pTHX_ coro_cctx *cctx)
804	{	916	{
805	dSP;	917	dSP;
806	LOGOP myop;	918	LOGOP myop;
807		919
808	PL_top_env = &PL_start_env;	920	PL_top_env = &PL_start_env;
…		…
826		938
827	/*	939	/*
828	* this is a _very_ stripped down perl interpreter ;)	940	* this is a _very_ stripped down perl interpreter ;)
829	*/	941	*/
830	static void	942	static void
831	coro_run (void *arg)	943	cctx_run (void *arg)
832	{	944	{
833	dTHX;	945	dTHX;
834		946
835	/* coro_run is the alternative tail of transfer(), so unlock here. */	947	/* cctx_run is the alternative tail of transfer(), so unlock here. */
836	UNLOCK;	948	UNLOCK;
837		949
838	/* we now skip the entersub that lead to transfer() */	950	/* we now skip the entersub that lead to transfer() */
839	PL_op = PL_op->op_next;	951	PL_op = PL_op->op_next;
840		952
841	/* inject a fake subroutine call to cctx_init */	953	/* inject a fake subroutine call to cctx_init */
842	prepare_cctx (aTHX_ (coro_cctx *)arg);	954	cctx_prepare (aTHX_ (coro_cctx *)arg);
843		955
844	/* somebody or something will hit me for both perl_run and PL_restartop */	956	/* somebody or something will hit me for both perl_run and PL_restartop */
845	PL_restartop = PL_op;	957	PL_restartop = PL_op;
846	perl_run (PL_curinterp);	958	perl_run (PL_curinterp);
847		959
…		…
866	++cctx_count;	978	++cctx_count;
867		979
868	Newz (0, cctx, 1, coro_cctx);	980	Newz (0, cctx, 1, coro_cctx);
869		981
870	#if HAVE_MMAP	982	#if HAVE_MMAP
871
872	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	983	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
873	/* mmap supposedly does allocate-on-write for us */	984	/* mmap supposedly does allocate-on-write for us */
874	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	985	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
875		986
876	if (cctx->sptr != (void *)-1)	987	if (cctx->sptr != (void *)-1)
…		…
897	stack_start = cctx->sptr;	1008	stack_start = cctx->sptr;
898	stack_size = cctx->ssize;	1009	stack_size = cctx->ssize;
899	}	1010	}
900		1011
901	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1012	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
902	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1013	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
903		1014
904	return cctx;	1015	return cctx;
905	}	1016	}
906		1017
907	static void	1018	static void
…		…
924	Safefree (cctx->sptr);	1035	Safefree (cctx->sptr);
925		1036
926	Safefree (cctx);	1037	Safefree (cctx);
927	}	1038	}
928		1039
		1040	/* wether this cctx should be destructed */
		1041	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1042
929	static coro_cctx *	1043	static coro_cctx *
930	cctx_get (pTHX)	1044	cctx_get (pTHX_ int gimme)
931	{	1045	{
932	while (cctx_first)	1046	while (expect_true (cctx_first[gimme]))
933	{	1047	{
934	coro_cctx *cctx = cctx_first;	1048	coro_cctx *cctx = cctx_first[gimme];
935	cctx_first = cctx->next;	1049	cctx_first[gimme] = cctx->next;
936	--cctx_idle;	1050	--cctx_idle[gimme];
937		1051
938	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1052	if (expect_true (!CCTX_EXPIRED (cctx)))
939	return cctx;	1053	return cctx;
940		1054
941	cctx_destroy (cctx);	1055	cctx_destroy (cctx);
942	}	1056	}
943		1057
		1058	assert (!gimme);
944	return cctx_new ();	1059	return cctx_new ();
945	}	1060	}
946		1061
947	static void	1062	static void
948	cctx_put (coro_cctx *cctx)	1063	cctx_put (coro_cctx *cctx, int gimme)
949	{	1064	{
950	/* free another cctx if overlimit */	1065	/* free another cctx if overlimit */
951	if (cctx_idle >= MAX_IDLE_CCTX)	1066	if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX))
952	{	1067	{
953	coro_cctx *first = cctx_first;	1068	coro_cctx *first = cctx_first[gimme];
954	cctx_first = first->next;	1069	cctx_first[gimme] = first->next;
955	--cctx_idle;	1070	--cctx_idle[gimme];
956		1071
957	cctx_destroy (first);	1072	cctx_destroy (first);
958	}	1073	}
959		1074
960	++cctx_idle;	1075	++cctx_idle[gimme];
961	cctx->next = cctx_first;	1076	cctx->next = cctx_first[gimme];
962	cctx_first = cctx;	1077	cctx_first[gimme] = cctx;
963	}	1078	}
964		1079
965	/ coroutine switching ***************************************************/	1080	/ coroutine switching ***************************************************/
966		1081
967	static void NOINLINE	1082	static void
968	transfer_check (pTHX_ struct coro prev, struct coro next)	1083	transfer_check (pTHX_ struct coro prev, struct coro next)
969	{	1084	{
970	if (prev != next)	1085	if (expect_true (prev != next))
971	{	1086	{
972	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1087	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
973	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1088	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
974		1089
975	if (next->flags & CF_RUNNING)	1090	if (expect_false (next->flags & CF_RUNNING))
976	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1091	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
977		1092
978	if (next->flags & CF_DESTROYED)	1093	if (expect_false (next->flags & CF_DESTROYED))
979	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1094	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
980		1095
		1096	if (
		1097	#if PERL_VERSION_ATLEAST (5,9,0)
		1098	expect_false (PL_parser)
		1099	#else
981	if (PL_lex_state != LEX_NOTPARSING)	1100	expect_false (PL_lex_state != LEX_NOTPARSING)
		1101	#endif
		1102	)
982	croak ("Coro::State::transfer called while parsing, but this is not supported");	1103	croak ("Coro::State::transfer called while parsing, but this is not supported");
983	}	1104	}
984	}	1105	}
985		1106
986	/* always use the TRANSFER macro */	1107	/* always use the TRANSFER macro */
…		…
988	transfer (pTHX_ struct coro prev, struct coro next)	1109	transfer (pTHX_ struct coro prev, struct coro next)
989	{	1110	{
990	dSTACKLEVEL;	1111	dSTACKLEVEL;
991		1112
992	/* sometimes transfer is only called to set idle_sp */	1113	/* sometimes transfer is only called to set idle_sp */
993	if (!next)	1114	if (expect_false (!next))
994	{	1115	{
995	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1116	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
996	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1117	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
997	}	1118	}
998	else if (prev != next)	1119	else if (expect_true (prev != next))
999	{	1120	{
1000	coro_cctx *prev__cctx;	1121	coro_cctx *prev__cctx;
1001		1122
1002	if (prev->flags & CF_NEW)	1123	if (expect_false (prev->flags & CF_NEW))
1003	{	1124	{
1004	/* create a new empty context */	1125	/* create a new empty context */
1005	Newz (0, prev->cctx, 1, coro_cctx);	1126	Newz (0, prev->cctx, 1, coro_cctx);
1006	prev->flags &= ~CF_NEW;	1127	prev->flags &= ~CF_NEW;
1007	prev->flags \|= CF_RUNNING;	1128	prev->flags \|= CF_RUNNING;
…		…
1010	prev->flags &= ~CF_RUNNING;	1131	prev->flags &= ~CF_RUNNING;
1011	next->flags \|= CF_RUNNING;	1132	next->flags \|= CF_RUNNING;
1012		1133
1013	LOCK;	1134	LOCK;
1014		1135
1015	if (next->flags & CF_NEW)	1136	if (expect_false (next->flags & CF_NEW))
1016	{	1137	{
1017	/* need to start coroutine */	1138	/* need to start coroutine */
1018	next->flags &= ~CF_NEW;	1139	next->flags &= ~CF_NEW;
1019	/* first get rid of the old state */	1140	/* first get rid of the old state */
1020	save_perl (aTHX_ prev);	1141	save_perl (aTHX_ prev);
1021	/* setup coroutine call */	1142	/* setup coroutine call */
1022	setup_coro (aTHX_ next);	1143	coro_setup (aTHX_ next);
1023	}	1144	}
1024	else	1145	else
1025	{	1146	{
1026	/* coroutine already started */	1147	/* coroutine already started */
1027	save_perl (aTHX_ prev);	1148	save_perl (aTHX_ prev);
…		…
1029	}	1150	}
1030		1151
1031	prev__cctx = prev->cctx;	1152	prev__cctx = prev->cctx;
1032		1153
1033	/* possibly "free" the cctx */	1154	/* possibly "free" the cctx */
1034	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1155	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1035	{	1156	{
1036	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1157	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1037	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1158	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1038		1159
1039	prev->cctx = 0;	1160	prev->cctx = 0;
1040		1161
		1162	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1163	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1164	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1165	if (!next->cctx)
		1166	next->cctx = cctx_get (aTHX_ next->gimme);
		1167
1041	cctx_put (prev__cctx);	1168	cctx_put (prev__cctx, prev->gimme);
1042	}	1169	}
1043		1170
1044	++next->usecount;	1171	++next->usecount;
1045		1172
1046	if (!next->cctx)	1173	if (expect_true (!next->cctx))
1047	next->cctx = cctx_get (aTHX);	1174	next->cctx = cctx_get (aTHX_ next->gimme);
1048		1175
1049	if (prev__cctx != next->cctx)	1176	if (expect_false (prev__cctx != next->cctx))
1050	{	1177	{
1051	prev__cctx->top_env = PL_top_env;	1178	prev__cctx->top_env = PL_top_env;
1052	PL_top_env = next->cctx->top_env;	1179	PL_top_env = next->cctx->top_env;
1053	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1180	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1054	}	1181	}
1055		1182
1056	free_coro_mortal (aTHX);	1183	free_coro_mortal (aTHX);
1057	UNLOCK;	1184	UNLOCK;
		1185
		1186	if (expect_false (prev->throw \|\| next->throw))
		1187	{
		1188	struct coro *coro = SvSTATE (coro_current);
		1189
		1190	if (coro->throw)
		1191	{
		1192	SV *exception = coro->throw;
		1193	coro->throw = 0;
		1194	sv_setsv (ERRSV, exception);
		1195	croak (0);
		1196	}
		1197	}
1058	}	1198	}
1059	}	1199	}
1060		1200
1061	struct transfer_args	1201	struct transfer_args
1062	{	1202	{
…		…
1095	croak ("FATAL: tried to destroy currently running coroutine");	1235	croak ("FATAL: tried to destroy currently running coroutine");
1096		1236
1097	save_perl (aTHX_ &temp);	1237	save_perl (aTHX_ &temp);
1098	load_perl (aTHX_ coro);	1238	load_perl (aTHX_ coro);
1099		1239
1100	destroy_coro (aTHX_ coro);	1240	coro_destroy (aTHX_ coro);
1101		1241
1102	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1242	load_perl (aTHX_ &temp);
1103		1243
1104	coro->mainstack = 0;	1244	coro->slot = 0;
1105	}	1245	}
1106		1246
1107	cctx_destroy (coro->cctx);	1247	cctx_destroy (coro->cctx);
1108	SvREFCNT_dec (coro->args);	1248	SvREFCNT_dec (coro->args);
1109		1249
…		…
1234	{	1374	{
1235	LOCK;	1375	LOCK;
1236	next_sv = coro_deq (aTHX_ PRIO_MIN);	1376	next_sv = coro_deq (aTHX_ PRIO_MIN);
1237		1377
1238	/* nothing to schedule: call the idle handler */	1378	/* nothing to schedule: call the idle handler */
1239	if (!next_sv)	1379	if (expect_false (!next_sv))
1240	{	1380	{
1241	dSP;	1381	dSP;
1242	UNLOCK;	1382	UNLOCK;
1243		1383
1244	ENTER;	1384	ENTER;
…		…
1254	}	1394	}
1255		1395
1256	ta->next = SvSTATE (next_sv);	1396	ta->next = SvSTATE (next_sv);
1257		1397
1258	/* cannot transfer to destroyed coros, skip and look for next */	1398	/* cannot transfer to destroyed coros, skip and look for next */
1259	if (ta->next->flags & CF_DESTROYED)	1399	if (expect_false (ta->next->flags & CF_DESTROYED))
1260	{	1400	{
1261	UNLOCK;	1401	UNLOCK;
1262	SvREFCNT_dec (next_sv);	1402	SvREFCNT_dec (next_sv);
1263	/* coro_nready is already taken care of by destroy */	1403	/* coro_nready is already taken care of by destroy */
1264	continue;	1404	continue;
…		…
1320	dTHX;	1460	dTHX;
1321	struct transfer_args ta;	1461	struct transfer_args ta;
1322		1462
1323	prepare_cede (aTHX_ &ta);	1463	prepare_cede (aTHX_ &ta);
1324		1464
1325	if (ta.prev != ta.next)	1465	if (expect_true (ta.prev != ta.next))
1326	{	1466	{
1327	TRANSFER (ta);	1467	TRANSFER (ta);
1328	return 1;	1468	return 1;
1329	}	1469	}
1330	else	1470	else
…		…
1366	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1506	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1367		1507
1368	if (coro->flags & CF_RUNNING)	1508	if (coro->flags & CF_RUNNING)
1369	PL_runops = RUNOPS_DEFAULT;	1509	PL_runops = RUNOPS_DEFAULT;
1370	else	1510	else
1371	coro->runops = RUNOPS_DEFAULT;	1511	coro->slot->runops = RUNOPS_DEFAULT;
1372	}	1512	}
1373	}	1513	}
1374		1514
1375	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1515	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1376		1516
…		…
1381	#ifdef USE_ITHREADS	1521	#ifdef USE_ITHREADS
1382	MUTEX_INIT (&coro_mutex);	1522	MUTEX_INIT (&coro_mutex);
1383	#endif	1523	#endif
1384	BOOT_PAGESIZE;	1524	BOOT_PAGESIZE;
1385		1525
1386	irsgv = gv_fetchpv ("/", 1, SVt_PV);	1526	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1527	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1528
		1529	hv_sig = coro_get_hv ("SIG", TRUE);
		1530	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
		1531	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
		1532
		1533	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
		1534	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1387		1535
1388	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1536	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1389		1537
1390	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1538	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1391	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1539	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1397		1545
1398	while (main_top_env->je_prev)	1546	while (main_top_env->je_prev)
1399	main_top_env = main_top_env->je_prev;	1547	main_top_env = main_top_env->je_prev;
1400		1548
1401	coroapi.ver = CORO_API_VERSION;	1549	coroapi.ver = CORO_API_VERSION;
		1550	coroapi.rev = CORO_API_REVISION;
1402	coroapi.transfer = api_transfer;	1551	coroapi.transfer = api_transfer;
1403		1552
1404	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1553	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1405	}	1554	}
1406		1555
…		…
1422		1571
1423	coro->hv = hv = newHV ();	1572	coro->hv = hv = newHV ();
1424	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1573	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1425	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1574	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1426		1575
		1576	av_extend (coro->args, items - 1);
1427	for (i = 1; i < items; i++)	1577	for (i = 1; i < items; i++)
1428	av_push (coro->args, newSVsv (ST (i)));	1578	av_push (coro->args, newSVsv (ST (i)));
1429	}	1579	}
1430	OUTPUT:	1580	OUTPUT:
1431	RETVAL	1581	RETVAL
…		…
1472		1622
1473	break;	1623	break;
1474	}	1624	}
1475		1625
1476	BARRIER;	1626	BARRIER;
		1627	PUTBACK;
1477	TRANSFER (ta);	1628	TRANSFER (ta);
1478		1629	SPAGAIN; /* might be the sp of a different coroutine now */
1479	if (GIMME_V != G_VOID && ta.next != ta.prev)	1630	/* be extra careful not to ever do anything after TRANSFER */
1480	XSRETURN_YES;
1481	}	1631	}
1482		1632
1483	bool	1633	bool
1484	_destroy (SV *coro_sv)	1634	_destroy (SV *coro_sv)
1485	CODE:	1635	CODE:
…		…
1511	RETVAL	1661	RETVAL
1512		1662
1513	int	1663	int
1514	cctx_idle ()	1664	cctx_idle ()
1515	CODE:	1665	CODE:
1516	RETVAL = cctx_idle;	1666	RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2];
1517	OUTPUT:	1667	OUTPUT:
1518	RETVAL	1668	RETVAL
1519		1669
1520	void	1670	void
1521	list ()	1671	list ()
…		…
1534	CODE:	1684	CODE:
1535	{	1685	{
1536	if (coro->mainstack)	1686	if (coro->mainstack)
1537	{	1687	{
1538	struct coro temp;	1688	struct coro temp;
1539	Zero (&temp, 1, struct coro);
1540		1689
1541	if (!(coro->flags & CF_RUNNING))	1690	if (!(coro->flags & CF_RUNNING))
1542	{	1691	{
1543	save_perl (aTHX_ &temp);	1692	save_perl (aTHX_ &temp);
1544	load_perl (aTHX_ coro);	1693	load_perl (aTHX_ coro);
…		…
1546		1695
1547	{	1696	{
1548	dSP;	1697	dSP;
1549	ENTER;	1698	ENTER;
1550	SAVETMPS;	1699	SAVETMPS;
		1700	PUTBACK;
		1701	PUSHSTACK;
1551	PUSHMARK (SP);	1702	PUSHMARK (SP);
1552	PUTBACK;	1703
1553	if (ix)	1704	if (ix)
1554	eval_sv (coderef, 0);	1705	eval_sv (coderef, 0);
1555	else	1706	else
1556	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1707	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1708
1557	SPAGAIN;	1709	POPSTACK;
1558	FREETMPS;	1710	FREETMPS;
1559	LEAVE;	1711	LEAVE;
1560	PUTBACK;	1712	PUTBACK;
1561	}	1713	}
1562		1714
…		…
1619		1771
1620	BOOT:	1772	BOOT:
1621	{	1773	{
1622	int i;	1774	int i;
1623		1775
1624	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1776	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1625	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1777	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1626	av_async_pool = get_av ("Coro::async_pool", TRUE);	1778	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1627		1779
1628	coro_current = get_sv ("Coro::current", FALSE);	1780	coro_current = coro_get_sv ("Coro::current", FALSE);
1629	SvREADONLY_on (coro_current);	1781	SvREADONLY_on (coro_current);
1630		1782
1631	coro_stash = gv_stashpv ("Coro", TRUE);	1783	coro_stash = gv_stashpv ("Coro", TRUE);
1632		1784
1633	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1785	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1634	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1786	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1635	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1787	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1636	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1788	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1639		1791
1640	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1792	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1641	coro_ready[i] = newAV ();	1793	coro_ready[i] = newAV ();
1642		1794
1643	{	1795	{
1644	SV *sv = perl_get_sv("Coro::API", 1);	1796	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1797	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1645		1798
1646	coroapi.schedule = api_schedule;	1799	coroapi.schedule = api_schedule;
1647	coroapi.cede = api_cede;	1800	coroapi.cede = api_cede;
1648	coroapi.cede_notself = api_cede_notself;	1801	coroapi.cede_notself = api_cede_notself;
1649	coroapi.ready = api_ready;	1802	coroapi.ready = api_ready;
…		…
1700	CODE:	1853	CODE:
1701	RETVAL = coro_nready;	1854	RETVAL = coro_nready;
1702	OUTPUT:	1855	OUTPUT:
1703	RETVAL	1856	RETVAL
1704		1857
		1858	void
		1859	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1860	PROTOTYPE: $;$
		1861	CODE:
		1862	SvREFCNT_dec (self->throw);
		1863	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1864
1705	# for async_pool speedup	1865	# for async_pool speedup
1706	void	1866	void
1707	_pool_1 (SV *cb)	1867	_pool_1 (SV *cb)
1708	CODE:	1868	CODE:
1709	{	1869	{
1710	int i, len;	1870	struct coro *coro = SvSTATE (coro_current);
1711	HV hv = (HV )SvRV (coro_current);	1871	HV hv = (HV )SvRV (coro_current);
1712	AV *defav = GvAV (PL_defgv);	1872	AV *defav = GvAV (PL_defgv);
1713	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1873	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
1714	AV *invoke_av;	1874	AV *invoke_av;
		1875	int i, len;
1715		1876
1716	if (!invoke)	1877	if (!invoke)
1717	croak ("\3terminate\2\n");	1878	croak ("\3async_pool terminate\2\n");
		1879
		1880	SvREFCNT_dec (coro->saved_deffh);
		1881	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1718		1882
1719	hv_store (hv, "desc", sizeof ("desc") - 1,	1883	hv_store (hv, "desc", sizeof ("desc") - 1,
1720	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1884	newSVpvn (strpair ("[async_pool]")), 0);
1721		1885
1722	invoke_av = (AV *)SvRV (invoke);	1886	invoke_av = (AV *)SvRV (invoke);
1723	len = av_len (invoke_av);	1887	len = av_len (invoke_av);
1724		1888
1725	sv_setsv (cb, AvARRAY (invoke_av)[0]);	1889	sv_setsv (cb, AvARRAY (invoke_av)[0]);
…		…
1740	{	1904	{
1741	struct coro *coro = SvSTATE (coro_current);	1905	struct coro *coro = SvSTATE (coro_current);
1742		1906
1743	sv_setsv (cb, &PL_sv_undef);	1907	sv_setsv (cb, &PL_sv_undef);
1744		1908
		1909	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1910	coro->saved_deffh = 0;
		1911
1745	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1912	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1746	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1913	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1747	croak ("\3terminate\2\n");	1914	croak ("\3async_pool terminate\2\n");
1748		1915
1749	av_clear (GvAV (PL_defgv));	1916	av_clear (GvAV (PL_defgv));
1750	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1917	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
1751	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1918	newSVpvn (strpair ("[async_pool idle]")), 0);
1752		1919
1753	coro->prio = 0;	1920	coro->prio = 0;
1754		1921
1755	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	1922	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1756	api_trace (coro_current, 0);	1923	api_trace (coro_current, 0);

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Comparing Coro/Coro/State.xs (file contents): Revision 1.178 by root, Wed Oct 3 01:48:06 2007 UTC vs. Revision 1.210 by root, Wed Oct 10 03:24:40 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.178 by root, Wed Oct 3 01:48:06 2007 UTC vs.
Revision 1.210 by root, Wed Oct 10 03:24:40 2007 UTC