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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.197 by root, Sat Oct 6 19:25:00 2007 UTC vs.
Revision 1.231 by root, Thu Apr 24 10:31:59 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15
		16	#ifdef WIN32
		17	# undef setjmp
		18	# undef longjmp
		19	# undef _exit
		20	#include <setjmp.h>
		21	#else
		22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
14		24
15	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
16	# include <unistd.h>	26	# include <unistd.h>
17	# include <sys/mman.h>	27	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
70	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
72	# endif	82	# endif
73	#endif	83	#endif
74		84
		85	/* 5.8.8 */
		86	#ifndef GV_NOTQUAL
		87	# define GV_NOTQUAL 0
		88	#endif
		89	#ifndef newSV
		90	# define newSV(l) NEWSV(0,l)
		91	#endif
		92
		93	/* 5.11 */
		94	#ifndef CxHASARGS
		95	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		96	#endif
		97
75	/* 5.8.7 */	98	/* 5.8.7 */
76	#ifndef SvRV_set	99	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif
79
80	/* 5.8.8 */
81	#ifndef GV_NOTQUAL
82	# define GV_NOTQUAL 0
83	#endif
84	#ifndef newSV
85	# define newSV(l) NEWSV(0,l)
86	#endif	101	#endif
87		102
88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	103	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
89	# undef CORO_STACKGUARD	104	# undef CORO_STACKGUARD
90	#endif	105	#endif
…		…
143	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
144	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
145	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
146	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
147	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
148	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
149		164
150	static GV irsgv; / $/ */	165	static GV irsgv; / $/ */
151	static GV stdoutgv; / STDOUT /	166	static GV stdoutgv; / STDOUT /
		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
		169	static HV hv_sig; / %SIG */
152		170
153	/* async_pool helper stuff */	171	/* async_pool helper stuff */
154	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
155	static SV *sv_pool_size;	173	static SV *sv_pool_size;
156	static AV *av_async_pool;	174	static AV *av_async_pool;
…		…
192	CF_READY = 0x0002, /* coroutine is ready */	210	CF_READY = 0x0002, /* coroutine is ready */
193	CF_NEW = 0x0004, /* has never been switched to */	211	CF_NEW = 0x0004, /* has never been switched to */
194	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	212	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
195	};	213	};
196		214
		215	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		216	typedef struct {
		217	SV *defsv;
		218	AV *defav;
		219	SV *errsv;
		220	SV *irsgv;
		221	#define VAR(name,type) type name;
		222	# include "state.h"
		223	#undef VAR
		224	} perl_slots;
		225
		226	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		227
197	/* this is a structure representing a perl-level coroutine */	228	/* this is a structure representing a perl-level coroutine */
198	struct coro {	229	struct coro {
199	/* the c coroutine allocated to this perl coroutine, if any */	230	/* the c coroutine allocated to this perl coroutine, if any */
200	coro_cctx *cctx;	231	coro_cctx *cctx;
201		232
		233	/* process data */
		234	AV *mainstack;
		235	perl_slots slot; / basically the saved sp */
		236
202	/* data associated with this coroutine (initial args) */	237	AV args; / data associated with this coroutine (initial args) */
203	AV *args;	238	int refcnt; /* coroutines are refcounted, yes */
204	int refcnt;
205	int flags; /* CF_ flags */	239	int flags; /* CF_ flags */
206		240	HV hv; / the perl hash associated with this coro, if any */
207	/* optionally saved, might be zero */
208	AV defav; / @_ */
209	SV defsv; / $_ */
210	SV errsv; / $@ */
211	SV deffh; / default filehandle */
212	SV irssv; / $/ */
213	SV irssv_sv; / real $/ cache */
214
215	#define VAR(name,type) type name;
216	# include "state.h"
217	#undef VAR
218		241
219	/* statistics */	242	/* statistics */
220	int usecount; /* number of transfers to this coro */	243	int usecount; /* number of transfers to this coro */
221		244
222	/* coro process data */	245	/* coro process data */
223	int prio;	246	int prio;
224	SV *throw;	247	SV throw; / exception to be thrown */
225		248
226	/* async_pool */	249	/* async_pool */
227	SV *saved_deffh;	250	SV *saved_deffh;
228		251
229	/* linked list */	252	/* linked list */
230	struct coro next, prev;	253	struct coro next, prev;
231	HV hv; / the perl hash associated with this coro, if any */
232	};	254	};
233		255
234	typedef struct coro *Coro__State;	256	typedef struct coro *Coro__State;
235	typedef struct coro *Coro__State_or_hashref;	257	typedef struct coro *Coro__State_or_hashref;
236		258
…		…
249	static int coro_nready;	271	static int coro_nready;
250	static struct coro *coro_first;	272	static struct coro *coro_first;
251		273
252	/ lowlevel stuff ********************************************************/	274	/ lowlevel stuff ********************************************************/
253		275
		276	static SV *
		277	coro_get_sv (pTHX_ const char *name, int create)
		278	{
		279	#if PERL_VERSION_ATLEAST (5,10,0)
		280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		281	get_sv (name, create);
		282	#endif
		283	return get_sv (name, create);
		284	}
		285
		286	static AV *
		287	coro_get_av (pTHX_ const char *name, int create)
		288	{
		289	#if PERL_VERSION_ATLEAST (5,10,0)
		290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		291	get_av (name, create);
		292	#endif
		293	return get_av (name, create);
		294	}
		295
		296	static HV *
		297	coro_get_hv (pTHX_ const char *name, int create)
		298	{
		299	#if PERL_VERSION_ATLEAST (5,10,0)
		300	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		301	get_hv (name, create);
		302	#endif
		303	return get_hv (name, create);
		304	}
		305
254	static AV *	306	static AV *
255	coro_clone_padlist (pTHX_ CV *cv)	307	coro_clone_padlist (pTHX_ CV *cv)
256	{	308	{
257	AV *padlist = CvPADLIST (cv);	309	AV *padlist = CvPADLIST (cv);
258	AV newpadlist, newpad;	310	AV newpadlist, newpad;
259		311
260	newpadlist = newAV ();	312	newpadlist = newAV ();
261	AvREAL_off (newpadlist);	313	AvREAL_off (newpadlist);
262	#if PERL_VERSION_ATLEAST (5,9,0)	314	#if PERL_VERSION_ATLEAST (5,10,0)
263	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	315	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
264	#else	316	#else
265	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	317	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
266	#endif	318	#endif
267	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	319	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
305		357
306	/* casting is fun. */	358	/* casting is fun. */
307	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	359	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
308	free_padlist (aTHX_ padlist);	360	free_padlist (aTHX_ padlist);
309		361
310	SvREFCNT_dec (av);
311
312	return 0;	362	return 0;
313	}	363	}
314		364
315	#define PERL_MAGIC_coro PERL_MAGIC_ext	365	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		366	#define CORO_MAGIC_type_state PERL_MAGIC_ext
316		367
317	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	368	static MGVTBL coro_cv_vtbl = {
		369	0, 0, 0, 0,
		370	coro_cv_free
		371	};
318		372
319	#define CORO_MAGIC(cv) \	373	#define CORO_MAGIC(sv,type) \
320	SvMAGIC (cv) \	374	SvMAGIC (sv) \
321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	375	? SvMAGIC (sv)->mg_type == type \
322	? SvMAGIC (cv) \	376	? SvMAGIC (sv) \
323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	377	: mg_find (sv, type) \
324	: 0	378	: 0
		379
		380	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		381	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
325		382
326	static struct coro *	383	static struct coro *
327	SvSTATE_ (pTHX_ SV *coro)	384	SvSTATE_ (pTHX_ SV *coro)
328	{	385	{
329	HV *stash;	386	HV *stash;
…		…
341	/* very slow, but rare, check */	398	/* very slow, but rare, check */
342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	399	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343	croak ("Coro::State object required");	400	croak ("Coro::State object required");
344	}	401	}
345		402
346	mg = CORO_MAGIC (coro);	403	mg = CORO_MAGIC_state (coro);
347	return (struct coro *)mg->mg_ptr;	404	return (struct coro *)mg->mg_ptr;
348	}	405	}
349		406
350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	407	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351		408
352	/* the next two functions merely cache the padlists */	409	/* the next two functions merely cache the padlists */
353	static void	410	static void
354	get_padlist (pTHX_ CV *cv)	411	get_padlist (pTHX_ CV *cv)
355	{	412	{
356	MAGIC *mg = CORO_MAGIC (cv);	413	MAGIC *mg = CORO_MAGIC_cv (cv);
357	AV *av;	414	AV *av;
358		415
359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	416	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	417	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
361	else	418	else
…		…
373	}	430	}
374		431
375	static void	432	static void
376	put_padlist (pTHX_ CV *cv)	433	put_padlist (pTHX_ CV *cv)
377	{	434	{
378	MAGIC *mg = CORO_MAGIC (cv);	435	MAGIC *mg = CORO_MAGIC_cv (cv);
379	AV *av;	436	AV *av;
380		437
381	if (expect_false (!mg))	438	if (expect_false (!mg))
382	{	439	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
383	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
384	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
385	mg->mg_virtual = &vtbl_coro;
386	mg->mg_obj = (SV *)newAV ();
387	}
388		440
389	av = (AV *)mg->mg_obj;	441	av = (AV *)mg->mg_obj;
390		442
391	if (expect_false (AvFILLp (av) >= AvMAX (av)))	443	if (expect_false (AvFILLp (av) >= AvMAX (av)))
392	av_extend (av, AvMAX (av) + 1);	444	av_extend (av, AvMAX (av) + 1);
…		…
397	/ load & save, init *****************************************************/	449	/ load & save, init *****************************************************/
398		450
399	static void	451	static void
400	load_perl (pTHX_ Coro__State c)	452	load_perl (pTHX_ Coro__State c)
401	{	453	{
		454	perl_slots *slot = c->slot;
		455	c->slot = 0;
		456
		457	PL_mainstack = c->mainstack;
		458
		459	GvSV (PL_defgv) = slot->defsv;
		460	GvAV (PL_defgv) = slot->defav;
		461	GvSV (PL_errgv) = slot->errsv;
		462	GvSV (irsgv) = slot->irsgv;
		463
402	#define VAR(name,type) PL_ ## name = c->name;	464	#define VAR(name,type) PL_ ## name = slot->name;
403	# include "state.h"	465	# include "state.h"
404	#undef VAR	466	#undef VAR
405
406	GvSV (PL_defgv) = c->defsv;
407	GvAV (PL_defgv) = c->defav;
408	GvSV (PL_errgv) = c->errsv;
409	GvSV (irsgv) = c->irssv_sv;
410		467
411	{	468	{
412	dSP;	469	dSP;
		470
413	CV *cv;	471	CV *cv;
414		472
415	/* now do the ugly restore mess */	473	/* now do the ugly restore mess */
416	while (expect_true (cv = (CV *)POPs))	474	while (expect_true (cv = (CV *)POPs))
417	{	475	{
…		…
472	}	530	}
473		531
474	PUTBACK;	532	PUTBACK;
475	}	533	}
476		534
		535	/* allocate some space on the context stack for our purposes */
		536	/* we manually unroll here, as usually 2 slots is enough */
		537	if (SLOT_COUNT >= 1) CXINC;
		538	if (SLOT_COUNT >= 2) CXINC;
		539	if (SLOT_COUNT >= 3) CXINC;
		540	{
		541	int i;
		542	for (i = 3; i < SLOT_COUNT; ++i)
		543	CXINC;
		544	}
		545	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		546
		547	c->mainstack = PL_mainstack;
		548
		549	{
		550	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		551
477	c->defav = GvAV (PL_defgv);	552	slot->defav = GvAV (PL_defgv);
478	c->defsv = DEFSV;	553	slot->defsv = DEFSV;
479	c->errsv = ERRSV;	554	slot->errsv = ERRSV;
480	c->irssv_sv = GvSV (irsgv);	555	slot->irsgv = GvSV (irsgv);
481		556
482	#define VAR(name,type)c->name = PL_ ## name;	557	#define VAR(name,type) slot->name = PL_ ## name;
483	# include "state.h"	558	# include "state.h"
484	#undef VAR	559	#undef VAR
		560	}
485	}	561	}
486		562
487	/*	563	/*
488	* allocate various perl stacks. This is an exact copy	564	* allocate various perl stacks. This is an exact copy
489	* of perl.c:init_stacks, except that it uses less memory	565	* of perl.c:init_stacks, except that it uses less memory
…		…
494	# define coro_init_stacks init_stacks	570	# define coro_init_stacks init_stacks
495	#else	571	#else
496	static void	572	static void
497	coro_init_stacks (pTHX)	573	coro_init_stacks (pTHX)
498	{	574	{
499	PL_curstackinfo = new_stackinfo(64, 6);	575	PL_curstackinfo = new_stackinfo(32, 8);
500	PL_curstackinfo->si_type = PERLSI_MAIN;	576	PL_curstackinfo->si_type = PERLSI_MAIN;
501	PL_curstack = PL_curstackinfo->si_stack;	577	PL_curstack = PL_curstackinfo->si_stack;
502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	578	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
503		579
504	PL_stack_base = AvARRAY(PL_curstack);	580	PL_stack_base = AvARRAY(PL_curstack);
505	PL_stack_sp = PL_stack_base;	581	PL_stack_sp = PL_stack_base;
506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	582	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
507		583
508	New(50,PL_tmps_stack,64,SV*);	584	New(50,PL_tmps_stack,32,SV*);
509	PL_tmps_floor = -1;	585	PL_tmps_floor = -1;
510	PL_tmps_ix = -1;	586	PL_tmps_ix = -1;
511	PL_tmps_max = 64;	587	PL_tmps_max = 32;
512		588
513	New(54,PL_markstack,16,I32);	589	New(54,PL_markstack,16,I32);
514	PL_markstack_ptr = PL_markstack;	590	PL_markstack_ptr = PL_markstack;
515	PL_markstack_max = PL_markstack + 16;	591	PL_markstack_max = PL_markstack + 16;
516		592
517	#ifdef SET_MARK_OFFSET	593	#ifdef SET_MARK_OFFSET
518	SET_MARK_OFFSET;	594	SET_MARK_OFFSET;
519	#endif	595	#endif
520		596
521	New(54,PL_scopestack,16,I32);	597	New(54,PL_scopestack,8,I32);
522	PL_scopestack_ix = 0;	598	PL_scopestack_ix = 0;
523	PL_scopestack_max = 16;	599	PL_scopestack_max = 8;
524		600
525	New(54,PL_savestack,64,ANY);	601	New(54,PL_savestack,24,ANY);
526	PL_savestack_ix = 0;	602	PL_savestack_ix = 0;
527	PL_savestack_max = 64;	603	PL_savestack_max = 24;
528		604
529	#if !PERL_VERSION_ATLEAST (5,9,0)	605	#if !PERL_VERSION_ATLEAST (5,10,0)
530	New(54,PL_retstack,4,OP*);	606	New(54,PL_retstack,4,OP*);
531	PL_retstack_ix = 0;	607	PL_retstack_ix = 0;
532	PL_retstack_max = 4;	608	PL_retstack_max = 4;
533	#endif	609	#endif
534	}	610	}
…		…
557		633
558	Safefree (PL_tmps_stack);	634	Safefree (PL_tmps_stack);
559	Safefree (PL_markstack);	635	Safefree (PL_markstack);
560	Safefree (PL_scopestack);	636	Safefree (PL_scopestack);
561	Safefree (PL_savestack);	637	Safefree (PL_savestack);
562	#if !PERL_VERSION_ATLEAST (5,9,0)	638	#if !PERL_VERSION_ATLEAST (5,10,0)
563	Safefree (PL_retstack);	639	Safefree (PL_retstack);
564	#endif	640	#endif
565	}	641	}
566		642
567	static size_t	643	static size_t
…		…
569	{	645	{
570	size_t rss = sizeof (*coro);	646	size_t rss = sizeof (*coro);
571		647
572	if (coro->mainstack)	648	if (coro->mainstack)
573	{	649	{
		650	perl_slots tmp_slot;
		651	perl_slots *slot;
		652
574	if (coro->flags & CF_RUNNING)	653	if (coro->flags & CF_RUNNING)
575	{	654	{
		655	slot = &tmp_slot;
		656
576	#define VAR(name,type)coro->name = PL_ ## name;	657	#define VAR(name,type) slot->name = PL_ ## name;
577	# include "state.h"	658	# include "state.h"
578	#undef VAR	659	#undef VAR
579	}	660	}
		661	else
		662	slot = coro->slot;
580		663
581	rss += sizeof (coro->curstackinfo);	664	rss += sizeof (slot->curstackinfo);
582	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
583	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	665	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	666	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
585	rss += coro->tmps_max * sizeof (SV *);	667	rss += slot->tmps_max * sizeof (SV *);
586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	668	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
587	rss += coro->scopestack_max * sizeof (I32);	669	rss += slot->scopestack_max * sizeof (I32);
588	rss += coro->savestack_max * sizeof (ANY);	670	rss += slot->savestack_max * sizeof (ANY);
589		671
590	#if !PERL_VERSION_ATLEAST (5,9,0)	672	#if !PERL_VERSION_ATLEAST (5,10,0)
591	rss += coro->retstack_max * sizeof (OP *);	673	rss += slot->retstack_max * sizeof (OP *);
592	#endif	674	#endif
593	}	675	}
594		676
595	return rss;	677	return rss;
596	}	678	}
597		679
598	/ coroutine stack handling **********************************************/	680	/ coroutine stack handling **********************************************/
		681
		682	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		683	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		684
		685	/*
		686	* This overrides the default magic get method of %SIG elements.
		687	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		688	* and instead of tryign to save and restore the hash elements, we just provide
		689	* readback here.
		690	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		691	* not expecting this to actually change the hook. This is a potential problem
		692	* when a schedule happens then, but we ignore this.
		693	*/
		694	static int
		695	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		696	{
		697	const char *s = MgPV_nolen_const (mg);
		698
		699	if (*s == '_')
		700	{
		701	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		702	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		703	}
		704
		705	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		706	}
		707
		708	static int
		709	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		710	{
		711	const char *s = MgPV_nolen_const (mg);
		712
		713	if (*s == '_')
		714	{
		715	SV **svp = 0;
		716
		717	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		718	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		719
		720	if (svp)
		721	{
		722	SV old = svp;
		723	*svp = newSVsv (sv);
		724	SvREFCNT_dec (old);
		725	return 0;
		726	}
		727	}
		728
		729	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		730	}
599		731
600	static void	732	static void
601	coro_setup (pTHX_ struct coro *coro)	733	coro_setup (pTHX_ struct coro *coro)
602	{	734	{
603	/*	735	/*
…		…
612	PL_curpm = 0;	744	PL_curpm = 0;
613	PL_curpad = 0;	745	PL_curpad = 0;
614	PL_localizing = 0;	746	PL_localizing = 0;
615	PL_dirty = 0;	747	PL_dirty = 0;
616	PL_restartop = 0;	748	PL_restartop = 0;
		749	#if PERL_VERSION_ATLEAST (5,10,0)
		750	PL_parser = 0;
		751	#endif
		752
		753	/* recreate the die/warn hooks */
		754	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		755	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
617		756
618	GvSV (PL_defgv) = newSV (0);	757	GvSV (PL_defgv) = newSV (0);
619	GvAV (PL_defgv) = coro->args; coro->args = 0;	758	GvAV (PL_defgv) = coro->args; coro->args = 0;
620	GvSV (PL_errgv) = newSV (0);	759	GvSV (PL_errgv) = newSV (0);
621	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	760	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
636	PL_op = (OP *)&myop;	775	PL_op = (OP *)&myop;
637	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	776	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
638	SPAGAIN;	777	SPAGAIN;
639	}	778	}
640		779
641	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	780	/* this newly created coroutine might be run on an existing cctx which most
		781	* likely was suspended in set_stacklevel, called from entersub.
		782	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		783	* so we ENTER here for symmetry
		784	*/
		785	ENTER;
642	}	786	}
643		787
644	static void	788	static void
645	coro_destroy (pTHX_ struct coro *coro)	789	coro_destroy (pTHX_ struct coro *coro)
646	{	790	{
…		…
666	SvREFCNT_dec (GvSV (PL_errgv));	810	SvREFCNT_dec (GvSV (PL_errgv));
667	SvREFCNT_dec (PL_defoutgv);	811	SvREFCNT_dec (PL_defoutgv);
668	SvREFCNT_dec (PL_rs);	812	SvREFCNT_dec (PL_rs);
669	SvREFCNT_dec (GvSV (irsgv));	813	SvREFCNT_dec (GvSV (irsgv));
670		814
		815	SvREFCNT_dec (PL_diehook);
		816	SvREFCNT_dec (PL_warnhook);
		817
671	SvREFCNT_dec (coro->saved_deffh);	818	SvREFCNT_dec (coro->saved_deffh);
672	SvREFCNT_dec (coro->throw);	819	SvREFCNT_dec (coro->throw);
673		820
674	coro_destroy_stacks (aTHX);	821	coro_destroy_stacks (aTHX);
675	}	822	}
…		…
764	SAVETMPS;	911	SAVETMPS;
765	EXTEND (SP, 3);	912	EXTEND (SP, 3);
766	PUSHMARK (SP);	913	PUSHMARK (SP);
767	PUSHs (&PL_sv_yes);	914	PUSHs (&PL_sv_yes);
768	PUSHs (fullname);	915	PUSHs (fullname);
769	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	916	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
770	PUTBACK;	917	PUTBACK;
771	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	918	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
772	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	919	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
773	SPAGAIN;	920	SPAGAIN;
774	FREETMPS;	921	FREETMPS;
…		…
810		957
811	/* inject a fake call to Coro::State::_cctx_init into the execution */	958	/* inject a fake call to Coro::State::_cctx_init into the execution */
812	/* _cctx_init should be careful, as it could be called at almost any time */	959	/* _cctx_init should be careful, as it could be called at almost any time */
813	/* during execution of a perl program */	960	/* during execution of a perl program */
814	static void NOINLINE	961	static void NOINLINE
815	prepare_cctx (pTHX_ coro_cctx *cctx)	962	cctx_prepare (pTHX_ coro_cctx *cctx)
816	{	963	{
817	dSP;	964	dSP;
818	LOGOP myop;	965	LOGOP myop;
819		966
820	PL_top_env = &PL_start_env;	967	PL_top_env = &PL_start_env;
…		…
838		985
839	/*	986	/*
840	* this is a _very_ stripped down perl interpreter ;)	987	* this is a _very_ stripped down perl interpreter ;)
841	*/	988	*/
842	static void	989	static void
843	coro_run (void *arg)	990	cctx_run (void *arg)
844	{	991	{
845	dTHX;	992	dTHX;
846		993
847	/* coro_run is the alternative tail of transfer(), so unlock here. */	994	/* cctx_run is the alternative tail of transfer(), so unlock here. */
848	UNLOCK;	995	UNLOCK;
849		996
850	/* we now skip the entersub that lead to transfer() */	997	/* we now skip the entersub that lead to transfer() */
851	PL_op = PL_op->op_next;	998	PL_op = PL_op->op_next;
852		999
853	/* inject a fake subroutine call to cctx_init */	1000	/* inject a fake subroutine call to cctx_init */
854	prepare_cctx (aTHX_ (coro_cctx *)arg);	1001	cctx_prepare (aTHX_ (coro_cctx *)arg);
855		1002
856	/* somebody or something will hit me for both perl_run and PL_restartop */	1003	/* somebody or something will hit me for both perl_run and PL_restartop */
857	PL_restartop = PL_op;	1004	PL_restartop = PL_op;
858	perl_run (PL_curinterp);	1005	perl_run (PL_curinterp);
859		1006
…		…
878	++cctx_count;	1025	++cctx_count;
879		1026
880	Newz (0, cctx, 1, coro_cctx);	1027	Newz (0, cctx, 1, coro_cctx);
881		1028
882	#if HAVE_MMAP	1029	#if HAVE_MMAP
883
884	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1030	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
885	/* mmap supposedly does allocate-on-write for us */	1031	/* mmap supposedly does allocate-on-write for us */
886	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1032	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
887		1033
888	if (cctx->sptr != (void *)-1)	1034	if (cctx->sptr != (void *)-1)
…		…
909	stack_start = cctx->sptr;	1055	stack_start = cctx->sptr;
910	stack_size = cctx->ssize;	1056	stack_size = cctx->ssize;
911	}	1057	}
912		1058
913	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1059	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
914	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1060	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
915		1061
916	return cctx;	1062	return cctx;
917	}	1063	}
918		1064
919	static void	1065	static void
…		…
991	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1137	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
992		1138
993	if (expect_false (next->flags & CF_DESTROYED))	1139	if (expect_false (next->flags & CF_DESTROYED))
994	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1140	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
995		1141
		1142	#if !PERL_VERSION_ATLEAST (5,10,0)
996	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1143	if (expect_false (PL_lex_state != LEX_NOTPARSING))
997	croak ("Coro::State::transfer called while parsing, but this is not supported");	1144	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1145	#endif
998	}	1146	}
999	}	1147	}
1000		1148
1001	/* always use the TRANSFER macro */	1149	/* always use the TRANSFER macro */
1002	static void NOINLINE	1150	static void NOINLINE
1003	transfer (pTHX_ struct coro prev, struct coro next)	1151	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1004	{	1152	{
1005	dSTACKLEVEL;	1153	dSTACKLEVEL;
		1154	static volatile int has_throw;
1006		1155
1007	/* sometimes transfer is only called to set idle_sp */	1156	/* sometimes transfer is only called to set idle_sp */
1008	if (expect_false (!next))	1157	if (expect_false (!next))
1009	{	1158	{
1010	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1159	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1025	prev->flags &= ~CF_RUNNING;	1174	prev->flags &= ~CF_RUNNING;
1026	next->flags \|= CF_RUNNING;	1175	next->flags \|= CF_RUNNING;
1027		1176
1028	LOCK;	1177	LOCK;
1029		1178
		1179	/* first get rid of the old state */
		1180	save_perl (aTHX_ prev);
		1181
1030	if (expect_false (next->flags & CF_NEW))	1182	if (expect_false (next->flags & CF_NEW))
1031	{	1183	{
1032	/* need to start coroutine */	1184	/* need to start coroutine */
1033	next->flags &= ~CF_NEW;	1185	next->flags &= ~CF_NEW;
1034	/* first get rid of the old state */
1035	save_perl (aTHX_ prev);
1036	/* setup coroutine call */	1186	/* setup coroutine call */
1037	coro_setup (aTHX_ next);	1187	coro_setup (aTHX_ next);
1038	}	1188	}
1039	else	1189	else
1040	{
1041	/* coroutine already started */
1042	save_perl (aTHX_ prev);
1043	load_perl (aTHX_ next);	1190	load_perl (aTHX_ next);
1044	}
1045		1191
1046	prev__cctx = prev->cctx;	1192	prev__cctx = prev->cctx;
1047		1193
1048	/* possibly "free" the cctx */	1194	/* possibly "free" the cctx */
1049	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1195	if (expect_true (
		1196	prev__cctx->idle_sp == STACKLEVEL
		1197	&& !(prev__cctx->flags & CC_TRACE)
		1198	&& !force_cctx
		1199	))
1050	{	1200	{
1051	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1201	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1052	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1202	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1053		1203
1054	prev->cctx = 0;	1204	prev->cctx = 0;
1055		1205
1056	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1206	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1057	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1207	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1058	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1208	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1209	if (!next->cctx)
1059	next->cctx = cctx_get (aTHX);	1210	next->cctx = cctx_get (aTHX);
1060		1211
1061	cctx_put (prev__cctx);	1212	cctx_put (prev__cctx);
1062	}	1213	}
1063		1214
1064	++next->usecount;	1215	++next->usecount;
1065		1216
1066	if (expect_true (!next->cctx))	1217	if (expect_true (!next->cctx))
1067	next->cctx = cctx_get (aTHX);	1218	next->cctx = cctx_get (aTHX);
		1219
		1220	has_throw = !!next->throw;
1068		1221
1069	if (expect_false (prev__cctx != next->cctx))	1222	if (expect_false (prev__cctx != next->cctx))
1070	{	1223	{
1071	prev__cctx->top_env = PL_top_env;	1224	prev__cctx->top_env = PL_top_env;
1072	PL_top_env = next->cctx->top_env;	1225	PL_top_env = next->cctx->top_env;
…		…
1074	}	1227	}
1075		1228
1076	free_coro_mortal (aTHX);	1229	free_coro_mortal (aTHX);
1077	UNLOCK;	1230	UNLOCK;
1078		1231
1079	if (expect_false (prev->throw \|\| next->throw))	1232	if (expect_false (has_throw))
1080	{	1233	{
1081	struct coro *coro = SvSTATE (coro_current);	1234	struct coro *coro = SvSTATE (coro_current);
1082		1235
1083	if (coro->throw)	1236	if (coro->throw)
1084	{	1237	{
…		…
1094	struct transfer_args	1247	struct transfer_args
1095	{	1248	{
1096	struct coro prev, next;	1249	struct coro prev, next;
1097	};	1250	};
1098		1251
1099	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1252	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1100	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1253	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1101		1254
1102	/ high level stuff ******************************************************/	1255	/ high level stuff ******************************************************/
1103		1256
1104	static int	1257	static int
…		…
1130	save_perl (aTHX_ &temp);	1283	save_perl (aTHX_ &temp);
1131	load_perl (aTHX_ coro);	1284	load_perl (aTHX_ coro);
1132		1285
1133	coro_destroy (aTHX_ coro);	1286	coro_destroy (aTHX_ coro);
1134		1287
1135	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1288	load_perl (aTHX_ &temp);
1136		1289
1137	coro->mainstack = 0;	1290	coro->slot = 0;
1138	}	1291	}
1139		1292
1140	cctx_destroy (coro->cctx);	1293	cctx_destroy (coro->cctx);
1141	SvREFCNT_dec (coro->args);	1294	SvREFCNT_dec (coro->args);
1142		1295
…		…
1198	{	1351	{
1199	dTHX;	1352	dTHX;
1200	struct transfer_args ta;	1353	struct transfer_args ta;
1201		1354
1202	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1355	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1203	TRANSFER (ta);	1356	TRANSFER (ta, 1);
1204	}	1357	}
1205		1358
1206	/ Coro ******************************************************************/	1359	/ Coro ******************************************************************/
1207		1360
1208	static void	1361	static void
…		…
1210	{	1363	{
1211	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1364	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1212	}	1365	}
1213		1366
1214	static SV *	1367	static SV *
1215	coro_deq (pTHX_ int min_prio)	1368	coro_deq (pTHX)
1216	{	1369	{
1217	int prio = PRIO_MAX - PRIO_MIN;	1370	int prio;
1218		1371
1219	min_prio -= PRIO_MIN;
1220	if (min_prio < 0)
1221	min_prio = 0;
1222
1223	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1372	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1224	if (AvFILLp (coro_ready [prio]) >= 0)	1373	if (AvFILLp (coro_ready [prio]) >= 0)
1225	return av_shift (coro_ready [prio]);	1374	return av_shift (coro_ready [prio]);
1226		1375
1227	return 0;	1376	return 0;
1228	}	1377	}
…		…
1264	SV prev_sv, next_sv;	1413	SV prev_sv, next_sv;
1265		1414
1266	for (;;)	1415	for (;;)
1267	{	1416	{
1268	LOCK;	1417	LOCK;
1269	next_sv = coro_deq (aTHX_ PRIO_MIN);	1418	next_sv = coro_deq (aTHX);
1270		1419
1271	/* nothing to schedule: call the idle handler */	1420	/* nothing to schedule: call the idle handler */
1272	if (expect_false (!next_sv))	1421	if (expect_false (!next_sv))
1273	{	1422	{
1274	dSP;	1423	dSP;
…		…
1278	SAVETMPS;	1427	SAVETMPS;
1279		1428
1280	PUSHMARK (SP);	1429	PUSHMARK (SP);
1281	PUTBACK;	1430	PUTBACK;
1282	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1431	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1432	SPAGAIN;
1283		1433
1284	FREETMPS;	1434	FREETMPS;
1285	LEAVE;	1435	LEAVE;
1286	continue;	1436	continue;
1287	}	1437	}
…		…
1342	{	1492	{
1343	dTHX;	1493	dTHX;
1344	struct transfer_args ta;	1494	struct transfer_args ta;
1345		1495
1346	prepare_schedule (aTHX_ &ta);	1496	prepare_schedule (aTHX_ &ta);
1347	TRANSFER (ta);	1497	TRANSFER (ta, 1);
1348	}	1498	}
1349		1499
1350	static int	1500	static int
1351	api_cede (void)	1501	api_cede (void)
1352	{	1502	{
…		…
1355		1505
1356	prepare_cede (aTHX_ &ta);	1506	prepare_cede (aTHX_ &ta);
1357		1507
1358	if (expect_true (ta.prev != ta.next))	1508	if (expect_true (ta.prev != ta.next))
1359	{	1509	{
1360	TRANSFER (ta);	1510	TRANSFER (ta, 1);
1361	return 1;	1511	return 1;
1362	}	1512	}
1363	else	1513	else
1364	return 0;	1514	return 0;
1365	}	1515	}
…		…
1370	dTHX;	1520	dTHX;
1371	struct transfer_args ta;	1521	struct transfer_args ta;
1372		1522
1373	if (prepare_cede_notself (aTHX_ &ta))	1523	if (prepare_cede_notself (aTHX_ &ta))
1374	{	1524	{
1375	TRANSFER (ta);	1525	TRANSFER (ta, 1);
1376	return 1;	1526	return 1;
1377	}	1527	}
1378	else	1528	else
1379	return 0;	1529	return 0;
1380	}	1530	}
…		…
1399	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1549	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1400		1550
1401	if (coro->flags & CF_RUNNING)	1551	if (coro->flags & CF_RUNNING)
1402	PL_runops = RUNOPS_DEFAULT;	1552	PL_runops = RUNOPS_DEFAULT;
1403	else	1553	else
1404	coro->runops = RUNOPS_DEFAULT;	1554	coro->slot->runops = RUNOPS_DEFAULT;
1405	}	1555	}
1406	}	1556	}
1407		1557
1408	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1558	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1409		1559
…		…
1416	#endif	1566	#endif
1417	BOOT_PAGESIZE;	1567	BOOT_PAGESIZE;
1418		1568
1419	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1569	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1420	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1570	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1571
		1572	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1573	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1574	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1575	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1576
		1577	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1578	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1579	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1421		1580
1422	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1581	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1423		1582
1424	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1583	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1425	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1584	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1431		1590
1432	while (main_top_env->je_prev)	1591	while (main_top_env->je_prev)
1433	main_top_env = main_top_env->je_prev;	1592	main_top_env = main_top_env->je_prev;
1434		1593
1435	coroapi.ver = CORO_API_VERSION;	1594	coroapi.ver = CORO_API_VERSION;
		1595	coroapi.rev = CORO_API_REVISION;
1436	coroapi.transfer = api_transfer;	1596	coroapi.transfer = api_transfer;
1437		1597
1438	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1598	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1439	}	1599	}
1440		1600
1441	SV *	1601	SV *
1442	new (char *klass, ...)	1602	new (char *klass, ...)
1443	CODE:	1603	CODE:
1444	{	1604	{
1445	struct coro *coro;	1605	struct coro *coro;
		1606	MAGIC *mg;
1446	HV *hv;	1607	HV *hv;
1447	int i;	1608	int i;
1448		1609
1449	Newz (0, coro, 1, struct coro);	1610	Newz (0, coro, 1, struct coro);
1450	coro->args = newAV ();	1611	coro->args = newAV ();
…		…
1453	if (coro_first) coro_first->prev = coro;	1614	if (coro_first) coro_first->prev = coro;
1454	coro->next = coro_first;	1615	coro->next = coro_first;
1455	coro_first = coro;	1616	coro_first = coro;
1456		1617
1457	coro->hv = hv = newHV ();	1618	coro->hv = hv = newHV ();
1458	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1619	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1620	mg->mg_flags \|= MGf_DUP;
1459	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1621	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1460		1622
1461	av_extend (coro->args, items - 1);	1623	av_extend (coro->args, items - 1);
1462	for (i = 1; i < items; i++)	1624	for (i = 1; i < items; i++)
1463	av_push (coro->args, newSVsv (ST (i)));	1625	av_push (coro->args, newSVsv (ST (i)));
…		…
1477	Coro::cede_notself = 4	1639	Coro::cede_notself = 4
1478	CODE:	1640	CODE:
1479	{	1641	{
1480	struct transfer_args ta;	1642	struct transfer_args ta;
1481		1643
		1644	PUTBACK;
1482	switch (ix)	1645	switch (ix)
1483	{	1646	{
1484	case 0:	1647	case 0:
1485	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1648	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1486	ta.next = 0;	1649	ta.next = 0;
…		…
1505	if (!prepare_cede_notself (aTHX_ &ta))	1668	if (!prepare_cede_notself (aTHX_ &ta))
1506	XSRETURN_EMPTY;	1669	XSRETURN_EMPTY;
1507		1670
1508	break;	1671	break;
1509	}	1672	}
		1673	SPAGAIN;
1510		1674
1511	BARRIER;	1675	BARRIER;
		1676	PUTBACK;
1512	TRANSFER (ta);	1677	TRANSFER (ta, 0);
1513		1678	SPAGAIN; /* might be the sp of a different coroutine now */
1514	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1679	/* be extra careful not to ever do anything after TRANSFER */
1515	XSRETURN_YES;
1516	}	1680	}
1517		1681
1518	bool	1682	bool
1519	_destroy (SV *coro_sv)	1683	_destroy (SV *coro_sv)
1520	CODE:	1684	CODE:
…		…
1569	CODE:	1733	CODE:
1570	{	1734	{
1571	if (coro->mainstack)	1735	if (coro->mainstack)
1572	{	1736	{
1573	struct coro temp;	1737	struct coro temp;
1574	Zero (&temp, 1, struct coro);
1575		1738
1576	if (!(coro->flags & CF_RUNNING))	1739	if (!(coro->flags & CF_RUNNING))
1577	{	1740	{
		1741	PUTBACK;
1578	save_perl (aTHX_ &temp);	1742	save_perl (aTHX_ &temp);
1579	load_perl (aTHX_ coro);	1743	load_perl (aTHX_ coro);
1580	}	1744	}
1581		1745
1582	{	1746	{
1583	dSP;	1747	dSP;
1584	ENTER;	1748	ENTER;
1585	SAVETMPS;	1749	SAVETMPS;
		1750	PUTBACK;
		1751	PUSHSTACK;
1586	PUSHMARK (SP);	1752	PUSHMARK (SP);
1587	PUTBACK;	1753
1588	if (ix)	1754	if (ix)
1589	eval_sv (coderef, 0);	1755	eval_sv (coderef, 0);
1590	else	1756	else
1591	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1757	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1758
		1759	POPSTACK;
1592	SPAGAIN;	1760	SPAGAIN;
1593	FREETMPS;	1761	FREETMPS;
1594	LEAVE;	1762	LEAVE;
1595	PUTBACK;	1763	PUTBACK;
1596	}	1764	}
1597		1765
1598	if (!(coro->flags & CF_RUNNING))	1766	if (!(coro->flags & CF_RUNNING))
1599	{	1767	{
1600	save_perl (aTHX_ coro);	1768	save_perl (aTHX_ coro);
1601	load_perl (aTHX_ &temp);	1769	load_perl (aTHX_ &temp);
		1770	SPAGAIN;
1602	}	1771	}
1603	}	1772	}
1604	}	1773	}
1605		1774
1606	SV *	1775	SV *
…		…
1647	case 1: RETVAL = coro->usecount; break;	1816	case 1: RETVAL = coro->usecount; break;
1648	}	1817	}
1649	OUTPUT:	1818	OUTPUT:
1650	RETVAL	1819	RETVAL
1651		1820
		1821	void
		1822	force_cctx ()
		1823	CODE:
		1824	struct coro *coro = SvSTATE (coro_current);
		1825	coro->cctx->idle_sp = 0;
1652		1826
1653	MODULE = Coro::State PACKAGE = Coro	1827	MODULE = Coro::State PACKAGE = Coro
1654		1828
1655	BOOT:	1829	BOOT:
1656	{	1830	{
1657	int i;	1831	int i;
1658		1832
1659	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1833	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1660	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1834	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1661	av_async_pool = get_av ("Coro::async_pool", TRUE);	1835	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1662		1836
1663	coro_current = get_sv ("Coro::current", FALSE);	1837	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1664	SvREADONLY_on (coro_current);	1838	SvREADONLY_on (coro_current);
1665		1839
1666	coro_stash = gv_stashpv ("Coro", TRUE);	1840	coro_stash = gv_stashpv ("Coro", TRUE);
1667		1841
1668	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1842	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1669	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1843	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1670	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1844	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1671	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1845	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1674		1848
1675	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1849	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1676	coro_ready[i] = newAV ();	1850	coro_ready[i] = newAV ();
1677		1851
1678	{	1852	{
1679	SV *sv = perl_get_sv("Coro::API", 1);	1853	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1854	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1680		1855
1681	coroapi.schedule = api_schedule;	1856	coroapi.schedule = api_schedule;
1682	coroapi.cede = api_cede;	1857	coroapi.cede = api_cede;
1683	coroapi.cede_notself = api_cede_notself;	1858	coroapi.cede_notself = api_cede_notself;
1684	coroapi.ready = api_ready;	1859	coroapi.ready = api_ready;
…		…
1742	PROTOTYPE: $;$	1917	PROTOTYPE: $;$
1743	CODE:	1918	CODE:
1744	SvREFCNT_dec (self->throw);	1919	SvREFCNT_dec (self->throw);
1745	self->throw = SvOK (throw) ? newSVsv (throw) : 0;	1920	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1746		1921
		1922	void
		1923	swap_defsv (Coro::State self)
		1924	PROTOTYPE: $
		1925	ALIAS:
		1926	swap_defav = 1
		1927	CODE:
		1928	if (!self->slot)
		1929	croak ("cannot swap state with coroutine that has no saved state");
		1930	else
		1931	{
		1932	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1933	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1934
		1935	SV tmp = src; src = dst; *dst = tmp;
		1936	}
		1937
1747	# for async_pool speedup	1938	# for async_pool speedup
1748	void	1939	void
1749	_pool_1 (SV *cb)	1940	_pool_1 (SV *cb)
1750	CODE:	1941	CODE:
1751	{	1942	{
…		…
1755	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1946	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1756	AV *invoke_av;	1947	AV *invoke_av;
1757	int i, len;	1948	int i, len;
1758		1949
1759	if (!invoke)	1950	if (!invoke)
		1951	{
		1952	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1760	croak ("\3async_pool terminate\2\n");	1953	croak ("\3async_pool terminate\2\n");
		1954	}
1761		1955
1762	SvREFCNT_dec (coro->saved_deffh);	1956	SvREFCNT_dec (coro->saved_deffh);
1763	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1957	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1764		1958
1765	hv_store (hv, "desc", sizeof ("desc") - 1,	1959	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1791	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	1985	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1792	coro->saved_deffh = 0;	1986	coro->saved_deffh = 0;
1793		1987
1794	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1988	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1795	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1989	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1990	{
		1991	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1796	croak ("\3async_pool terminate\2\n");	1992	croak ("\3async_pool terminate\2\n");
		1993	}
1797		1994
1798	av_clear (GvAV (PL_defgv));	1995	av_clear (GvAV (PL_defgv));
1799	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1996	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1800	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1997	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1801		1998

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.197 by root, Sat Oct 6 19:25:00 2007 UTC vs. Revision 1.231 by root, Thu Apr 24 10:31:59 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.197 by root, Sat Oct 6 19:25:00 2007 UTC vs.
Revision 1.231 by root, Thu Apr 24 10:31:59 2008 UTC