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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.185 by root, Thu Oct 4 19:35:08 2007 UTC vs.
Revision 1.209 by root, Wed Oct 10 02:58:17 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	SV 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 transfers 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;
210	//SV *throw;	238	SV throw; / exception to be thrown */
211		239
212	/* async_pool */	240	/* async_pool */
213	SV *saved_deffh;	241	SV *saved_deffh;
214		242
215	/* linked list */	243	/* linked list */
216	struct coro next, prev;	244	struct coro next, prev;
217	HV hv; / the perl hash associated with this coro, if any */
218	};	245	};
219		246
220	typedef struct coro *Coro__State;	247	typedef struct coro *Coro__State;
221	typedef struct coro *Coro__State_or_hashref;	248	typedef struct coro *Coro__State_or_hashref;
222		249
…		…
234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	261	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
235	static int coro_nready;	262	static int coro_nready;
236	static struct coro *coro_first;	263	static struct coro *coro_first;
237		264
238	/ 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	}
239		296
240	static AV *	297	static AV *
241	coro_clone_padlist (pTHX_ CV *cv)	298	coro_clone_padlist (pTHX_ CV *cv)
242	{	299	{
243	AV *padlist = CvPADLIST (cv);	300	AV *padlist = CvPADLIST (cv);
…		…
316	MAGIC *mg;	373	MAGIC *mg;
317		374
318	if (SvROK (coro))	375	if (SvROK (coro))
319	coro = SvRV (coro);	376	coro = SvRV (coro);
320		377
321	if (SvTYPE (coro) != SVt_PVHV)	378	if (expect_false (SvTYPE (coro) != SVt_PVHV))
322	croak ("Coro::State object required");	379	croak ("Coro::State object required");
323		380
324	stash = SvSTASH (coro);	381	stash = SvSTASH (coro);
325	if (stash != coro_stash && stash != coro_state_stash)	382	if (expect_false (stash != coro_stash && stash != coro_state_stash))
326	{	383	{
327	/* very slow, but rare, check */	384	/* very slow, but rare, check */
328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	385	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
329	croak ("Coro::State object required");	386	croak ("Coro::State object required");
330	}	387	}
…		…
340	get_padlist (pTHX_ CV *cv)	397	get_padlist (pTHX_ CV *cv)
341	{	398	{
342	MAGIC *mg = CORO_MAGIC (cv);	399	MAGIC *mg = CORO_MAGIC (cv);
343	AV *av;	400	AV *av;
344		401
345	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	402	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
346	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	403	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
347	else	404	else
348	{	405	{
349	#if CORO_PREFER_PERL_FUNCTIONS	406	#if CORO_PREFER_PERL_FUNCTIONS
350	/* this is probably cleaner, but also slower? */	407	/* this is probably cleaner, but also slower? */
…		…
362	put_padlist (pTHX_ CV *cv)	419	put_padlist (pTHX_ CV *cv)
363	{	420	{
364	MAGIC *mg = CORO_MAGIC (cv);	421	MAGIC *mg = CORO_MAGIC (cv);
365	AV *av;	422	AV *av;
366		423
367	if (!mg)	424	if (expect_false (!mg))
368	{	425	{
369	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	426	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
370	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	427	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
371	mg->mg_virtual = &vtbl_coro;	428	mg->mg_virtual = &vtbl_coro;
372	mg->mg_obj = (SV *)newAV ();	429	mg->mg_obj = (SV *)newAV ();
373	}	430	}
374		431
375	av = (AV *)mg->mg_obj;	432	av = (AV *)mg->mg_obj;
376		433
377	if (AvFILLp (av) >= AvMAX (av))	434	if (expect_false (AvFILLp (av) >= AvMAX (av)))
378	av_extend (av, AvMAX (av) + 1);	435	av_extend (av, AvMAX (av) + 1);
379		436
380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	437	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
381	}	438	}
382		439
383	/ load & save, init *****************************************************/	440	/ load & save, init *****************************************************/
384		441
385	static void	442	static void
386	load_perl (pTHX_ Coro__State c)	443	load_perl (pTHX_ Coro__State c)
387	{	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
388	#define VAR(name,type) PL_ ## name = c->name;	455	#define VAR(name,type) PL_ ## name = slot->name;
389	# include "state.h"	456	# include "state.h"
390	#undef VAR	457	#undef VAR
391		458
392	GvSV (PL_defgv) = c->defsv;	459	/hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);/
393	GvAV (PL_defgv) = c->defav;	460	/hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);/
394	GvSV (PL_errgv) = c->errsv;
395	GvSV (irsgv) = c->irssv_sv;
396		461
397	{	462	{
398	dSP;	463	dSP;
		464
399	CV *cv;	465	CV *cv;
400		466
401	/* now do the ugly restore mess */	467	/* now do the ugly restore mess */
402	while ((cv = (CV *)POPs))	468	while (expect_true (cv = (CV *)POPs))
403	{	469	{
404	put_padlist (aTHX_ cv); /* mark this padlist as available */	470	put_padlist (aTHX_ cv); /* mark this padlist as available */
405	CvDEPTH (cv) = PTR2IV (POPs);	471	CvDEPTH (cv) = PTR2IV (POPs);
406	CvPADLIST (cv) = (AV *)POPs;	472	CvPADLIST (cv) = (AV *)POPs;
407	}	473	}
…		…
426		492
427	XPUSHs (Nullsv);	493	XPUSHs (Nullsv);
428	/* this loop was inspired by pp_caller */	494	/* this loop was inspired by pp_caller */
429	for (;;)	495	for (;;)
430	{	496	{
431	while (cxix >= 0)	497	while (expect_true (cxix >= 0))
432	{	498	{
433	PERL_CONTEXT *cx = &ccstk[cxix--];	499	PERL_CONTEXT *cx = &ccstk[cxix--];
434		500
435	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	501	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
436	{	502	{
437	CV *cv = cx->blk_sub.cv;	503	CV *cv = cx->blk_sub.cv;
438		504
439	if (CvDEPTH (cv))	505	if (expect_true (CvDEPTH (cv)))
440	{	506	{
441	EXTEND (SP, 3);	507	EXTEND (SP, 3);
442	PUSHs ((SV *)CvPADLIST (cv));	508	PUSHs ((SV *)CvPADLIST (cv));
443	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	509	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
444	PUSHs ((SV *)cv);	510	PUSHs ((SV *)cv);
…		…
447	get_padlist (aTHX_ cv);	513	get_padlist (aTHX_ cv);
448	}	514	}
449	}	515	}
450	}	516	}
451		517
452	if (top_si->si_type == PERLSI_MAIN)	518	if (expect_true (top_si->si_type == PERLSI_MAIN))
453	break;	519	break;
454		520
455	top_si = top_si->si_prev;	521	top_si = top_si->si_prev;
456	ccstk = top_si->si_cxstack;	522	ccstk = top_si->si_cxstack;
457	cxix = top_si->si_cxix;	523	cxix = top_si->si_cxix;
458	}	524	}
459		525
460	PUTBACK;	526	PUTBACK;
461	}	527	}
462		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
463	c->defav = GvAV (PL_defgv);	546	slot->defav = GvAV (PL_defgv);
464	c->defsv = DEFSV;	547	slot->defsv = DEFSV;
465	c->errsv = ERRSV;	548	slot->errsv = ERRSV;
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;
…		…
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 (SV) + 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 (SV) + 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	}
…		…
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) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	699	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
607	PL_rs = newSVsv (GvSV (irsgv));	700	PL_rs = newSVsv (GvSV (irsgv));
608		701	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		702
618	{	703	{
619	dSP;	704	dSP;
620	LOGOP myop;	705	LOGOP myop;
621		706
622	Zero (&myop, 1, LOGOP);	707	Zero (&myop, 1, LOGOP);
623	myop.op_next = Nullop;	708	myop.op_next = Nullop;
624	myop.op_flags = OPf_WANT_VOID;	709	myop.op_flags = OPf_WANT_VOID;
625		710
626	PUSHMARK (SP);	711	PUSHMARK (SP);
627	XPUSHs (av_shift (GvAV (PL_defgv)));	712	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
628	PUTBACK;	713	PUTBACK;
629	PL_op = (OP *)&myop;	714	PL_op = (OP *)&myop;
630	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	715	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
631	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;
632	}	731	}
633
634	ENTER; /* necessary e.g. for dounwind */
635	}	732	}
636		733
637	static void	734	static void
638	coro_destroy (pTHX_ struct coro *coro)	735	coro_destroy (pTHX_ struct coro *coro)
639	{	736	{
…		…
659	SvREFCNT_dec (GvSV (PL_errgv));	756	SvREFCNT_dec (GvSV (PL_errgv));
660	SvREFCNT_dec (PL_defoutgv);	757	SvREFCNT_dec (PL_defoutgv);
661	SvREFCNT_dec (PL_rs);	758	SvREFCNT_dec (PL_rs);
662	SvREFCNT_dec (GvSV (irsgv));	759	SvREFCNT_dec (GvSV (irsgv));
663		760
		761	SvREFCNT_dec (PL_diehook);
		762	SvREFCNT_dec (PL_warnhook);
		763
664	SvREFCNT_dec (coro->saved_deffh);	764	SvREFCNT_dec (coro->saved_deffh);
665	//SvREFCNT_dec (coro->throw);	765	SvREFCNT_dec (coro->throw);
666		766
667	coro_destroy_stacks (aTHX);	767	coro_destroy_stacks (aTHX);
668	}	768	}
669		769
670	static void	770	static void
671	free_coro_mortal (pTHX)	771	free_coro_mortal (pTHX)
672	{	772	{
673	if (coro_mortal)	773	if (expect_true (coro_mortal))
674	{	774	{
675	SvREFCNT_dec (coro_mortal);	775	SvREFCNT_dec (coro_mortal);
676	coro_mortal = 0;	776	coro_mortal = 0;
677	}	777	}
678	}	778	}
…		…
707	bot = PL_stack_base + cx->blk_oldsp + 1;	807	bot = PL_stack_base + cx->blk_oldsp + 1;
708	top = cx->blk_gimme == G_ARRAY ? SP + 1	808	top = cx->blk_gimme == G_ARRAY ? SP + 1
709	: cx->blk_gimme == G_SCALAR ? bot + 1	809	: cx->blk_gimme == G_SCALAR ? bot + 1
710	: bot;	810	: bot;
711		811
		812	av_extend (av, top - bot);
712	while (bot < top)	813	while (bot < top)
713	av_push (av, SvREFCNT_inc (*bot++));	814	av_push (av, SvREFCNT_inc (*bot++));
714		815
715	PL_runops = RUNOPS_DEFAULT;	816	PL_runops = RUNOPS_DEFAULT;
716	ENTER;	817	ENTER;
…		…
719	PUSHMARK (SP);	820	PUSHMARK (SP);
720	PUSHs (&PL_sv_no);	821	PUSHs (&PL_sv_no);
721	PUSHs (fullname);	822	PUSHs (fullname);
722	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	823	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
723	PUTBACK;	824	PUTBACK;
724	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	825	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
725	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	826	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
726	SPAGAIN;	827	SPAGAIN;
727	FREETMPS;	828	FREETMPS;
728	LEAVE;	829	LEAVE;
729	PL_runops = runops_trace;	830	PL_runops = runops_trace;
…		…
758	PUSHMARK (SP);	859	PUSHMARK (SP);
759	PUSHs (&PL_sv_yes);	860	PUSHs (&PL_sv_yes);
760	PUSHs (fullname);	861	PUSHs (fullname);
761	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	862	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
762	PUTBACK;	863	PUTBACK;
763	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	864	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
764	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	865	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
765	SPAGAIN;	866	SPAGAIN;
766	FREETMPS;	867	FREETMPS;
767	LEAVE;	868	LEAVE;
768	PL_runops = runops_trace;	869	PL_runops = runops_trace;
…		…
782	PL_runops = RUNOPS_DEFAULT;	883	PL_runops = RUNOPS_DEFAULT;
783	PUSHMARK (SP);	884	PUSHMARK (SP);
784	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	885	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
785	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	886	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
786	PUTBACK;	887	PUTBACK;
787	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);	888	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);
788	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	889	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
789	SPAGAIN;	890	SPAGAIN;
790	FREETMPS;	891	FREETMPS;
791	LEAVE;	892	LEAVE;
792	PL_runops = runops_trace;	893	PL_runops = runops_trace;
…		…
802		903
803	/* inject a fake call to Coro::State::_cctx_init into the execution */	904	/* inject a fake call to Coro::State::_cctx_init into the execution */
804	/* _cctx_init should be careful, as it could be called at almost any time */	905	/* _cctx_init should be careful, as it could be called at almost any time */
805	/* during execution of a perl program */	906	/* during execution of a perl program */
806	static void NOINLINE	907	static void NOINLINE
807	prepare_cctx (pTHX_ coro_cctx *cctx)	908	cctx_prepare (pTHX_ coro_cctx *cctx)
808	{	909	{
809	dSP;	910	dSP;
810	LOGOP myop;	911	LOGOP myop;
811		912
812	PL_top_env = &PL_start_env;	913	PL_top_env = &PL_start_env;
…		…
830		931
831	/*	932	/*
832	* this is a _very_ stripped down perl interpreter ;)	933	* this is a _very_ stripped down perl interpreter ;)
833	*/	934	*/
834	static void	935	static void
835	coro_run (void *arg)	936	cctx_run (void *arg)
836	{	937	{
837	dTHX;	938	dTHX;
838		939
839	/* coro_run is the alternative tail of transfer(), so unlock here. */	940	/* cctx_run is the alternative tail of transfer(), so unlock here. */
840	UNLOCK;	941	UNLOCK;
841		942
842	/* we now skip the entersub that lead to transfer() */	943	/* we now skip the entersub that lead to transfer() */
843	PL_op = PL_op->op_next;	944	PL_op = PL_op->op_next;
844		945
845	/* inject a fake subroutine call to cctx_init */	946	/* inject a fake subroutine call to cctx_init */
846	prepare_cctx (aTHX_ (coro_cctx *)arg);	947	cctx_prepare (aTHX_ (coro_cctx *)arg);
847		948
848	/* somebody or something will hit me for both perl_run and PL_restartop */	949	/* somebody or something will hit me for both perl_run and PL_restartop */
849	PL_restartop = PL_op;	950	PL_restartop = PL_op;
850	perl_run (PL_curinterp);	951	perl_run (PL_curinterp);
851		952
…		…
870	++cctx_count;	971	++cctx_count;
871		972
872	Newz (0, cctx, 1, coro_cctx);	973	Newz (0, cctx, 1, coro_cctx);
873		974
874	#if HAVE_MMAP	975	#if HAVE_MMAP
875
876	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	976	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
877	/* mmap supposedly does allocate-on-write for us */	977	/* mmap supposedly does allocate-on-write for us */
878	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	978	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
879		979
880	if (cctx->sptr != (void *)-1)	980	if (cctx->sptr != (void *)-1)
…		…
901	stack_start = cctx->sptr;	1001	stack_start = cctx->sptr;
902	stack_size = cctx->ssize;	1002	stack_size = cctx->ssize;
903	}	1003	}
904		1004
905	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1005	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
906	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1006	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
907		1007
908	return cctx;	1008	return cctx;
909	}	1009	}
910		1010
911	static void	1011	static void
…		…
928	Safefree (cctx->sptr);	1028	Safefree (cctx->sptr);
929		1029
930	Safefree (cctx);	1030	Safefree (cctx);
931	}	1031	}
932		1032
		1033	/* wether this cctx should be destructed */
		1034	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1035
933	static coro_cctx *	1036	static coro_cctx *
934	cctx_get (pTHX)	1037	cctx_get (pTHX_ int gimme)
935	{	1038	{
936	while (cctx_first)	1039	while (expect_true (cctx_first[gimme]))
937	{	1040	{
938	coro_cctx *cctx = cctx_first;	1041	coro_cctx *cctx = cctx_first[gimme];
939	cctx_first = cctx->next;	1042	cctx_first[gimme] = cctx->next;
940	--cctx_idle;	1043	--cctx_idle[gimme];
941		1044
942	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1045	if (expect_true (!CCTX_EXPIRED (cctx)))
943	return cctx;	1046	return cctx;
944		1047
945	cctx_destroy (cctx);	1048	cctx_destroy (cctx);
946	}	1049	}
947		1050
		1051	assert (!gimme);
948	return cctx_new ();	1052	return cctx_new ();
949	}	1053	}
950		1054
951	static void	1055	static void
952	cctx_put (coro_cctx *cctx)	1056	cctx_put (coro_cctx *cctx, int gimme)
953	{	1057	{
954	/* free another cctx if overlimit */	1058	/* free another cctx if overlimit */
955	if (cctx_idle >= MAX_IDLE_CCTX)	1059	if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX))
956	{	1060	{
957	coro_cctx *first = cctx_first;	1061	coro_cctx *first = cctx_first[gimme];
958	cctx_first = first->next;	1062	cctx_first[gimme] = first->next;
959	--cctx_idle;	1063	--cctx_idle[gimme];
960		1064
961	cctx_destroy (first);	1065	cctx_destroy (first);
962	}	1066	}
963		1067
964	++cctx_idle;	1068	++cctx_idle[gimme];
965	cctx->next = cctx_first;	1069	cctx->next = cctx_first[gimme];
966	cctx_first = cctx;	1070	cctx_first[gimme] = cctx;
967	}	1071	}
968		1072
969	/ coroutine switching ***************************************************/	1073	/ coroutine switching ***************************************************/
970		1074
971	static void NOINLINE	1075	static void
972	transfer_check (pTHX_ struct coro prev, struct coro next)	1076	transfer_check (pTHX_ struct coro prev, struct coro next)
973	{	1077	{
974	if (prev != next)	1078	if (expect_true (prev != next))
975	{	1079	{
976	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1080	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
977	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1081	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
978		1082
979	if (next->flags & CF_RUNNING)	1083	if (expect_false (next->flags & CF_RUNNING))
980	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1084	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
981		1085
982	if (next->flags & CF_DESTROYED)	1086	if (expect_false (next->flags & CF_DESTROYED))
983	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1087	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
984		1088
		1089	if (
		1090	#if PERL_VERSION_ATLEAST (5,9,0)
		1091	expect_false (PL_parser)
		1092	#else
985	if (PL_lex_state != LEX_NOTPARSING)	1093	expect_false (PL_lex_state != LEX_NOTPARSING)
		1094	#endif
		1095	)
986	croak ("Coro::State::transfer called while parsing, but this is not supported");	1096	croak ("Coro::State::transfer called while parsing, but this is not supported");
987	}	1097	}
988	}	1098	}
989		1099
990	/* always use the TRANSFER macro */	1100	/* always use the TRANSFER macro */
…		…
992	transfer (pTHX_ struct coro prev, struct coro next)	1102	transfer (pTHX_ struct coro prev, struct coro next)
993	{	1103	{
994	dSTACKLEVEL;	1104	dSTACKLEVEL;
995		1105
996	/* sometimes transfer is only called to set idle_sp */	1106	/* sometimes transfer is only called to set idle_sp */
997	if (!next)	1107	if (expect_false (!next))
998	{	1108	{
999	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1109	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1000	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1110	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1001	}	1111	}
1002	else if (prev != next)	1112	else if (expect_true (prev != next))
1003	{	1113	{
1004	coro_cctx *prev__cctx;	1114	coro_cctx *prev__cctx;
1005		1115
1006	if (prev->flags & CF_NEW)	1116	if (expect_false (prev->flags & CF_NEW))
1007	{	1117	{
1008	/* create a new empty context */	1118	/* create a new empty context */
1009	Newz (0, prev->cctx, 1, coro_cctx);	1119	Newz (0, prev->cctx, 1, coro_cctx);
1010	prev->flags &= ~CF_NEW;	1120	prev->flags &= ~CF_NEW;
1011	prev->flags \|= CF_RUNNING;	1121	prev->flags \|= CF_RUNNING;
…		…
1014	prev->flags &= ~CF_RUNNING;	1124	prev->flags &= ~CF_RUNNING;
1015	next->flags \|= CF_RUNNING;	1125	next->flags \|= CF_RUNNING;
1016		1126
1017	LOCK;	1127	LOCK;
1018		1128
1019	if (next->flags & CF_NEW)	1129	if (expect_false (next->flags & CF_NEW))
1020	{	1130	{
1021	/* need to start coroutine */	1131	/* need to start coroutine */
1022	next->flags &= ~CF_NEW;	1132	next->flags &= ~CF_NEW;
1023	/* first get rid of the old state */	1133	/* first get rid of the old state */
1024	save_perl (aTHX_ prev);	1134	save_perl (aTHX_ prev);
…		…
1033	}	1143	}
1034		1144
1035	prev__cctx = prev->cctx;	1145	prev__cctx = prev->cctx;
1036		1146
1037	/* possibly "free" the cctx */	1147	/* possibly "free" the cctx */
1038	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1148	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1039	{	1149	{
1040	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1150	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1041	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1151	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1042		1152
1043	prev->cctx = 0;	1153	prev->cctx = 0;
1044		1154
		1155	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1156	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1157	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1158	if (!next->cctx)
		1159	next->cctx = cctx_get (aTHX_ next->gimme);
		1160
1045	cctx_put (prev__cctx);	1161	cctx_put (prev__cctx, prev->gimme);
1046	}	1162	}
1047		1163
1048	++next->usecount;	1164	++next->usecount;
1049		1165
1050	if (!next->cctx)	1166	if (expect_true (!next->cctx))
1051	next->cctx = cctx_get (aTHX);	1167	next->cctx = cctx_get (aTHX_ next->gimme);
1052		1168
1053	if (prev__cctx != next->cctx)	1169	if (expect_false (prev__cctx != next->cctx))
1054	{	1170	{
1055	prev__cctx->top_env = PL_top_env;	1171	prev__cctx->top_env = PL_top_env;
1056	PL_top_env = next->cctx->top_env;	1172	PL_top_env = next->cctx->top_env;
1057	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1173	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1058	}	1174	}
1059		1175
1060	free_coro_mortal (aTHX);	1176	free_coro_mortal (aTHX);
1061	UNLOCK;	1177	UNLOCK;
		1178
		1179	if (expect_false (prev->throw \|\| next->throw))
		1180	{
		1181	struct coro *coro = SvSTATE (coro_current);
		1182
		1183	if (coro->throw)
		1184	{
		1185	SV *exception = coro->throw;
		1186	coro->throw = 0;
		1187	sv_setsv (ERRSV, exception);
		1188	croak (0);
		1189	}
		1190	}
1062	}	1191	}
1063	}	1192	}
1064		1193
1065	struct transfer_args	1194	struct transfer_args
1066	{	1195	{
…		…
1101	save_perl (aTHX_ &temp);	1230	save_perl (aTHX_ &temp);
1102	load_perl (aTHX_ coro);	1231	load_perl (aTHX_ coro);
1103		1232
1104	coro_destroy (aTHX_ coro);	1233	coro_destroy (aTHX_ coro);
1105		1234
1106	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1235	load_perl (aTHX_ &temp);
1107		1236
1108	coro->mainstack = 0;	1237	coro->slot = 0;
1109	}	1238	}
1110		1239
1111	cctx_destroy (coro->cctx);	1240	cctx_destroy (coro->cctx);
1112	SvREFCNT_dec (coro->args);	1241	SvREFCNT_dec (coro->args);
1113		1242
…		…
1238	{	1367	{
1239	LOCK;	1368	LOCK;
1240	next_sv = coro_deq (aTHX_ PRIO_MIN);	1369	next_sv = coro_deq (aTHX_ PRIO_MIN);
1241		1370
1242	/* nothing to schedule: call the idle handler */	1371	/* nothing to schedule: call the idle handler */
1243	if (!next_sv)	1372	if (expect_false (!next_sv))
1244	{	1373	{
1245	dSP;	1374	dSP;
1246	UNLOCK;	1375	UNLOCK;
1247		1376
1248	ENTER;	1377	ENTER;
…		…
1258	}	1387	}
1259		1388
1260	ta->next = SvSTATE (next_sv);	1389	ta->next = SvSTATE (next_sv);
1261		1390
1262	/* cannot transfer to destroyed coros, skip and look for next */	1391	/* cannot transfer to destroyed coros, skip and look for next */
1263	if (ta->next->flags & CF_DESTROYED)	1392	if (expect_false (ta->next->flags & CF_DESTROYED))
1264	{	1393	{
1265	UNLOCK;	1394	UNLOCK;
1266	SvREFCNT_dec (next_sv);	1395	SvREFCNT_dec (next_sv);
1267	/* coro_nready is already taken care of by destroy */	1396	/* coro_nready is already taken care of by destroy */
1268	continue;	1397	continue;
…		…
1324	dTHX;	1453	dTHX;
1325	struct transfer_args ta;	1454	struct transfer_args ta;
1326		1455
1327	prepare_cede (aTHX_ &ta);	1456	prepare_cede (aTHX_ &ta);
1328		1457
1329	if (ta.prev != ta.next)	1458	if (expect_true (ta.prev != ta.next))
1330	{	1459	{
1331	TRANSFER (ta);	1460	TRANSFER (ta);
1332	return 1;	1461	return 1;
1333	}	1462	}
1334	else	1463	else
…		…
1370	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1499	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1371		1500
1372	if (coro->flags & CF_RUNNING)	1501	if (coro->flags & CF_RUNNING)
1373	PL_runops = RUNOPS_DEFAULT;	1502	PL_runops = RUNOPS_DEFAULT;
1374	else	1503	else
1375	coro->runops = RUNOPS_DEFAULT;	1504	coro->slot->runops = RUNOPS_DEFAULT;
1376	}	1505	}
1377	}	1506	}
1378		1507
1379	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1508	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1380		1509
…		…
1385	#ifdef USE_ITHREADS	1514	#ifdef USE_ITHREADS
1386	MUTEX_INIT (&coro_mutex);	1515	MUTEX_INIT (&coro_mutex);
1387	#endif	1516	#endif
1388	BOOT_PAGESIZE;	1517	BOOT_PAGESIZE;
1389		1518
1390	irsgv = gv_fetchpv ("/", 1, SVt_PV);	1519	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1520	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1521
		1522	hv_sig = coro_get_hv ("SIG", TRUE);
		1523	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
		1524	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
		1525
		1526	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
		1527	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1391		1528
1392	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1529	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1393		1530
1394	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1531	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1395	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1532	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1426		1563
1427	coro->hv = hv = newHV ();	1564	coro->hv = hv = newHV ();
1428	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1565	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1429	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1566	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1430		1567
		1568	av_extend (coro->args, items - 1);
1431	for (i = 1; i < items; i++)	1569	for (i = 1; i < items; i++)
1432	av_push (coro->args, newSVsv (ST (i)));	1570	av_push (coro->args, newSVsv (ST (i)));
1433	}	1571	}
1434	OUTPUT:	1572	OUTPUT:
1435	RETVAL	1573	RETVAL
…		…
1438	# function to increase chances that they all will call transfer with the same	1576	# function to increase chances that they all will call transfer with the same
1439	# stack offset	1577	# stack offset
1440	void	1578	void
1441	_set_stacklevel (...)	1579	_set_stacklevel (...)
1442	ALIAS:	1580	ALIAS:
1443	Coro::State::transfer = 1	1581	Coro::State::transfer = 1
1444	Coro::schedule = 2	1582	Coro::schedule = 2
1445	Coro::cede = 3	1583	Coro::cede = 3
1446	Coro::cede_notself = 4	1584	Coro::cede_notself = 4
		1585	Coro::Event::next = 5
		1586	Coro::Event::next_cancel = 6
1447	CODE:	1587	PPCODE:
1448	{	1588	{
1449	struct transfer_args ta;	1589	struct transfer_args ta;
		1590	int again = 0;
1450		1591
1451	switch (ix)	1592	do
1452	{	1593	{
		1594	switch (ix)
		1595	{
1453	case 0:	1596	case 0:
1454	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1597	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1455	ta.next = 0;	1598	ta.next = 0;
1456	break;	1599	break;
1457		1600
1458	case 1:	1601	case 1:
1459	if (items != 2)	1602	if (items != 2)
1460	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1603	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1461		1604
1462	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1605	prepare_transfer (aTHX_ &ta, ST(0), ST(1));
1463	break;	1606	break;
1464		1607
1465	case 2:	1608	case 2:
1466	prepare_schedule (aTHX_ &ta);	1609	prepare_schedule (aTHX_ &ta);
1467	break;	1610	break;
1468		1611
1469	case 3:	1612	case 3:
1470	prepare_cede (aTHX_ &ta);	1613	prepare_cede (aTHX_ &ta);
1471	break;	1614	break;
1472		1615
1473	case 4:	1616	case 4:
1474	if (!prepare_cede_notself (aTHX_ &ta))	1617	if (!prepare_cede_notself (aTHX_ &ta))
1475	XSRETURN_EMPTY;	1618	XSRETURN_EMPTY;
1476		1619
1477	break;	1620	break;
		1621
		1622	case 5:
		1623	case 6:
		1624	if (items != 1)
		1625	croak ("Coro::Event::next (watcher) expects one argument, not %d", items);
		1626
		1627	{
		1628	SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID);
		1629
		1630	if (ev)
		1631	{
		1632	if (GIMME_V != G_VOID)
		1633	{
		1634	XPUSHs (ev);
		1635	XSRETURN (1);
		1636	}
		1637	else
		1638	XSRETURN_EMPTY;
		1639	}
		1640	}
		1641
		1642	prepare_schedule (aTHX_ &ta);
		1643	again = 1;
		1644	break;
		1645	}
		1646
		1647	/* our caller, entersub, caches only this value */
		1648	ta.prev->gimme = GIMME_V == G_VOID ? 0
		1649	: GIMME_V == G_SCALAR ? 1
		1650	: 2;
		1651
		1652	/* we need to save all local variables, as we might execute a different coroutine when transfer returns */
		1653	sp += 2; /* save args */
		1654	EXTEND (SP, 4);
		1655	PUSHs ((SV *)(intptr_t)items);
		1656	PUSHs ((SV *)(intptr_t)ix);
		1657	PUSHs ((SV *)(intptr_t)ax);
		1658	PUSHs ((SV *)(intptr_t)again);
		1659	PUTBACK;
		1660	BARRIER;
		1661	TRANSFER (ta);
		1662	BARRIER;
		1663	SPAGAIN;
		1664	again = (intptr_t)POPs;
		1665	ax = (intptr_t)POPs;
		1666	ix = (intptr_t)POPs;
		1667	items = (intptr_t)POPs;
		1668	sp -= 2; /* restore args */
1478	}	1669	}
		1670	while (again);
1479		1671
1480	BARRIER;
1481	TRANSFER (ta);
1482
1483	if (GIMME_V != G_VOID && ta.next != ta.prev)	1672	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1484	XSRETURN_YES;	1673	XSRETURN_YES;
		1674
		1675	XSRETURN_EMPTY; /* not understood why this is necessary, likely some stack handling bug */
1485	}	1676	}
1486		1677
1487	bool	1678	bool
1488	_destroy (SV *coro_sv)	1679	_destroy (SV *coro_sv)
1489	CODE:	1680	CODE:
…		…
1515	RETVAL	1706	RETVAL
1516		1707
1517	int	1708	int
1518	cctx_idle ()	1709	cctx_idle ()
1519	CODE:	1710	CODE:
1520	RETVAL = cctx_idle;	1711	RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2];
1521	OUTPUT:	1712	OUTPUT:
1522	RETVAL	1713	RETVAL
1523		1714
1524	void	1715	void
1525	list ()	1716	list ()
…		…
1538	CODE:	1729	CODE:
1539	{	1730	{
1540	if (coro->mainstack)	1731	if (coro->mainstack)
1541	{	1732	{
1542	struct coro temp;	1733	struct coro temp;
1543	Zero (&temp, 1, struct coro);
1544		1734
1545	if (!(coro->flags & CF_RUNNING))	1735	if (!(coro->flags & CF_RUNNING))
1546	{	1736	{
1547	save_perl (aTHX_ &temp);	1737	save_perl (aTHX_ &temp);
1548	load_perl (aTHX_ coro);	1738	load_perl (aTHX_ coro);
…		…
1550		1740
1551	{	1741	{
1552	dSP;	1742	dSP;
1553	ENTER;	1743	ENTER;
1554	SAVETMPS;	1744	SAVETMPS;
		1745	PUTBACK;
		1746	PUSHSTACK;
1555	PUSHMARK (SP);	1747	PUSHMARK (SP);
1556	PUTBACK;	1748
1557	if (ix)	1749	if (ix)
1558	eval_sv (coderef, 0);	1750	eval_sv (coderef, 0);
1559	else	1751	else
1560	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1752	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1753
1561	SPAGAIN;	1754	POPSTACK;
1562	FREETMPS;	1755	FREETMPS;
1563	LEAVE;	1756	LEAVE;
1564	PUTBACK;
1565	}	1757	}
1566		1758
1567	if (!(coro->flags & CF_RUNNING))	1759	if (!(coro->flags & CF_RUNNING))
1568	{	1760	{
1569	save_perl (aTHX_ coro);	1761	save_perl (aTHX_ coro);
…		…
1623		1815
1624	BOOT:	1816	BOOT:
1625	{	1817	{
1626	int i;	1818	int i;
1627		1819
1628	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1820	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1629	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1821	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1630	av_async_pool = get_av ("Coro::async_pool", TRUE);	1822	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1631		1823
1632	coro_current = get_sv ("Coro::current", FALSE);	1824	coro_current = coro_get_sv ("Coro::current", FALSE);
1633	SvREADONLY_on (coro_current);	1825	SvREADONLY_on (coro_current);
1634		1826
1635	coro_stash = gv_stashpv ("Coro", TRUE);	1827	coro_stash = gv_stashpv ("Coro", TRUE);
1636		1828
1637	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1829	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1638	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1830	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1639	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1831	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1640	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1832	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1643		1835
1644	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1836	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1645	coro_ready[i] = newAV ();	1837	coro_ready[i] = newAV ();
1646		1838
1647	{	1839	{
1648	SV *sv = perl_get_sv("Coro::API", 1);	1840	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1841	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1649		1842
1650	coroapi.schedule = api_schedule;	1843	coroapi.schedule = api_schedule;
1651	coroapi.cede = api_cede;	1844	coroapi.cede = api_cede;
1652	coroapi.cede_notself = api_cede_notself;	1845	coroapi.cede_notself = api_cede_notself;
1653	coroapi.ready = api_ready;	1846	coroapi.ready = api_ready;
…		…
1704	CODE:	1897	CODE:
1705	RETVAL = coro_nready;	1898	RETVAL = coro_nready;
1706	OUTPUT:	1899	OUTPUT:
1707	RETVAL	1900	RETVAL
1708		1901
		1902	void
		1903	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1904	PROTOTYPE: $;$
		1905	CODE:
		1906	SvREFCNT_dec (self->throw);
		1907	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1908
1709	# for async_pool speedup	1909	# for async_pool speedup
1710	void	1910	void
1711	_pool_1 (SV *cb)	1911	_pool_1 (SV *cb)
1712	CODE:	1912	CODE:
1713	{	1913	{
1714	struct coro *coro = SvSTATE (coro_current);	1914	struct coro *coro = SvSTATE (coro_current);
1715	HV hv = (HV )SvRV (coro_current);	1915	HV hv = (HV )SvRV (coro_current);
1716	AV *defav = GvAV (PL_defgv);	1916	AV *defav = GvAV (PL_defgv);
1717	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1917	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
1718	AV *invoke_av;	1918	AV *invoke_av;
1719	int i, len;	1919	int i, len;
1720		1920
1721	if (!invoke)	1921	if (!invoke)
1722	croak ("\3terminate\2\n");	1922	croak ("\3async_pool terminate\2\n");
1723		1923
1724	SvREFCNT_dec (coro->saved_deffh);	1924	SvREFCNT_dec (coro->saved_deffh);
1725	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1925	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1726		1926
1727	hv_store (hv, "desc", sizeof ("desc") - 1,	1927	hv_store (hv, "desc", sizeof ("desc") - 1,
1728	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1928	newSVpvn (strpair ("[async_pool]")), 0);
1729		1929
1730	invoke_av = (AV *)SvRV (invoke);	1930	invoke_av = (AV *)SvRV (invoke);
1731	len = av_len (invoke_av);	1931	len = av_len (invoke_av);
1732		1932
1733	sv_setsv (cb, AvARRAY (invoke_av)[0]);	1933	sv_setsv (cb, AvARRAY (invoke_av)[0]);
…		…
1753	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	1953	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1754	coro->saved_deffh = 0;	1954	coro->saved_deffh = 0;
1755		1955
1756	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1956	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1757	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1957	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1758	croak ("\3terminate\2\n");	1958	croak ("\3async_pool terminate\2\n");
1759		1959
1760	av_clear (GvAV (PL_defgv));	1960	av_clear (GvAV (PL_defgv));
1761	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1961	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
1762	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1962	newSVpvn (strpair ("[async_pool idle]")), 0);
1763		1963
1764	coro->prio = 0;	1964	coro->prio = 0;
1765		1965
1766	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	1966	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1767	api_trace (coro_current, 0);	1967	api_trace (coro_current, 0);

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Comparing Coro/Coro/State.xs (file contents): Revision 1.185 by root, Thu Oct 4 19:35:08 2007 UTC vs. Revision 1.209 by root, Wed Oct 10 02:58:17 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.185 by root, Thu Oct 4 19:35:08 2007 UTC vs.
Revision 1.209 by root, Wed Oct 10 02:58:17 2007 UTC