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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.196 by root, Sat Oct 6 01:11:01 2007 UTC vs.
Revision 1.230 by root, Mon Apr 14 11:28:59 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	#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
70	# ifndef IS_PADCONST	72	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	73	# define IS_PADCONST(v) 0
72	# endif	74	# endif
73	#endif	75	#endif
74		76
		77	/* 5.8.8 */
		78	#ifndef GV_NOTQUAL
		79	# define GV_NOTQUAL 0
		80	#endif
		81	#ifndef newSV
		82	# define newSV(l) NEWSV(0,l)
		83	#endif
		84
		85	/* 5.11 */
		86	#ifndef CxHASARGS
		87	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		88	#endif
		89
75	/* 5.8.7 */	90	/* 5.8.7 */
76	#ifndef SvRV_set	91	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	92	# 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	93	#endif
87		94
88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	95	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
89	# undef CORO_STACKGUARD	96	# undef CORO_STACKGUARD
90	#endif	97	#endif
…		…
143	static size_t coro_stacksize = CORO_STACKSIZE;	150	static size_t coro_stacksize = CORO_STACKSIZE;
144	static struct CoroAPI coroapi;	151	static struct CoroAPI coroapi;
145	static AV main_mainstack; / used to differentiate between $main and others */	152	static AV main_mainstack; / used to differentiate between $main and others */
146	static JMPENV *main_top_env;	153	static JMPENV *main_top_env;
147	static HV coro_state_stash, coro_stash;	154	static HV coro_state_stash, coro_stash;
148	static SV coro_mortal; / will be freed after next transfer */	155	static volatile SV coro_mortal; / will be freed after next transfer */
149		156
150	static GV irsgv; / $/ */	157	static GV irsgv; / $/ */
151	static GV stdoutgv; / STDOUT /	158	static GV stdoutgv; / STDOUT /
		159	static SV *rv_diehook;
		160	static SV *rv_warnhook;
		161	static HV hv_sig; / %SIG */
152		162
153	/* async_pool helper stuff */	163	/* async_pool helper stuff */
154	static SV *sv_pool_rss;	164	static SV *sv_pool_rss;
155	static SV *sv_pool_size;	165	static SV *sv_pool_size;
156	static AV *av_async_pool;	166	static AV *av_async_pool;
…		…
192	CF_READY = 0x0002, /* coroutine is ready */	202	CF_READY = 0x0002, /* coroutine is ready */
193	CF_NEW = 0x0004, /* has never been switched to */	203	CF_NEW = 0x0004, /* has never been switched to */
194	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	204	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
195	};	205	};
196		206
		207	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		208	typedef struct {
		209	SV *defsv;
		210	AV *defav;
		211	SV *errsv;
		212	SV *irsgv;
		213	#define VAR(name,type) type name;
		214	# include "state.h"
		215	#undef VAR
		216	} perl_slots;
		217
		218	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		219
197	/* this is a structure representing a perl-level coroutine */	220	/* this is a structure representing a perl-level coroutine */
198	struct coro {	221	struct coro {
199	/* the c coroutine allocated to this perl coroutine, if any */	222	/* the c coroutine allocated to this perl coroutine, if any */
200	coro_cctx *cctx;	223	coro_cctx *cctx;
201		224
		225	/* process data */
		226	AV *mainstack;
		227	perl_slots slot; / basically the saved sp */
		228
202	/* data associated with this coroutine (initial args) */	229	AV args; / data associated with this coroutine (initial args) */
203	AV *args;	230	int refcnt; /* coroutines are refcounted, yes */
204	int refcnt;
205	int flags; /* CF_ flags */	231	int flags; /* CF_ flags */
206		232	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		233
219	/* statistics */	234	/* statistics */
220	int usecount; /* number of transfers to this coro */	235	int usecount; /* number of transfers to this coro */
221		236
222	/* coro process data */	237	/* coro process data */
223	int prio;	238	int prio;
224	SV *throw;	239	SV throw; / exception to be thrown */
225		240
226	/* async_pool */	241	/* async_pool */
227	SV *saved_deffh;	242	SV *saved_deffh;
228		243
229	/* linked list */	244	/* linked list */
230	struct coro next, prev;	245	struct coro next, prev;
231	HV hv; / the perl hash associated with this coro, if any */
232	};	246	};
233		247
234	typedef struct coro *Coro__State;	248	typedef struct coro *Coro__State;
235	typedef struct coro *Coro__State_or_hashref;	249	typedef struct coro *Coro__State_or_hashref;
236		250
…		…
249	static int coro_nready;	263	static int coro_nready;
250	static struct coro *coro_first;	264	static struct coro *coro_first;
251		265
252	/ lowlevel stuff ********************************************************/	266	/ lowlevel stuff ********************************************************/
253		267
		268	static SV *
		269	coro_get_sv (pTHX_ const char *name, int create)
		270	{
		271	#if PERL_VERSION_ATLEAST (5,10,0)
		272	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		273	get_sv (name, create);
		274	#endif
		275	return get_sv (name, create);
		276	}
		277
		278	static AV *
		279	coro_get_av (pTHX_ const char *name, int create)
		280	{
		281	#if PERL_VERSION_ATLEAST (5,10,0)
		282	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		283	get_av (name, create);
		284	#endif
		285	return get_av (name, create);
		286	}
		287
		288	static HV *
		289	coro_get_hv (pTHX_ const char *name, int create)
		290	{
		291	#if PERL_VERSION_ATLEAST (5,10,0)
		292	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		293	get_hv (name, create);
		294	#endif
		295	return get_hv (name, create);
		296	}
		297
254	static AV *	298	static AV *
255	coro_clone_padlist (pTHX_ CV *cv)	299	coro_clone_padlist (pTHX_ CV *cv)
256	{	300	{
257	AV *padlist = CvPADLIST (cv);	301	AV *padlist = CvPADLIST (cv);
258	AV newpadlist, newpad;	302	AV newpadlist, newpad;
259		303
260	newpadlist = newAV ();	304	newpadlist = newAV ();
261	AvREAL_off (newpadlist);	305	AvREAL_off (newpadlist);
262	#if PERL_VERSION_ATLEAST (5,9,0)	306	#if PERL_VERSION_ATLEAST (5,10,0)
263	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
264	#else	308	#else
265	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	309	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
266	#endif	310	#endif
267	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	311	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
305		349
306	/* casting is fun. */	350	/* casting is fun. */
307	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	351	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
308	free_padlist (aTHX_ padlist);	352	free_padlist (aTHX_ padlist);
309		353
310	SvREFCNT_dec (av);
311
312	return 0;	354	return 0;
313	}	355	}
314		356
315	#define PERL_MAGIC_coro PERL_MAGIC_ext	357	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		358	#define CORO_MAGIC_type_state PERL_MAGIC_ext
316		359
317	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	360	static MGVTBL coro_cv_vtbl = {
		361	0, 0, 0, 0,
		362	coro_cv_free
		363	};
318		364
319	#define CORO_MAGIC(cv) \	365	#define CORO_MAGIC(sv,type) \
320	SvMAGIC (cv) \	366	SvMAGIC (sv) \
321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	367	? SvMAGIC (sv)->mg_type == type \
322	? SvMAGIC (cv) \	368	? SvMAGIC (sv) \
323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	369	: mg_find (sv, type) \
324	: 0	370	: 0
		371
		372	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		373	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
325		374
326	static struct coro *	375	static struct coro *
327	SvSTATE_ (pTHX_ SV *coro)	376	SvSTATE_ (pTHX_ SV *coro)
328	{	377	{
329	HV *stash;	378	HV *stash;
…		…
341	/* very slow, but rare, check */	390	/* very slow, but rare, check */
342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	391	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343	croak ("Coro::State object required");	392	croak ("Coro::State object required");
344	}	393	}
345		394
346	mg = CORO_MAGIC (coro);	395	mg = CORO_MAGIC_state (coro);
347	return (struct coro *)mg->mg_ptr;	396	return (struct coro *)mg->mg_ptr;
348	}	397	}
349		398
350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	399	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351		400
352	/* the next two functions merely cache the padlists */	401	/* the next two functions merely cache the padlists */
353	static void	402	static void
354	get_padlist (pTHX_ CV *cv)	403	get_padlist (pTHX_ CV *cv)
355	{	404	{
356	MAGIC *mg = CORO_MAGIC (cv);	405	MAGIC *mg = CORO_MAGIC_cv (cv);
357	AV *av;	406	AV *av;
358		407
359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	408	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	409	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
361	else	410	else
…		…
373	}	422	}
374		423
375	static void	424	static void
376	put_padlist (pTHX_ CV *cv)	425	put_padlist (pTHX_ CV *cv)
377	{	426	{
378	MAGIC *mg = CORO_MAGIC (cv);	427	MAGIC *mg = CORO_MAGIC_cv (cv);
379	AV *av;	428	AV *av;
380		429
381	if (expect_false (!mg))	430	if (expect_false (!mg))
382	{	431	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		432
389	av = (AV *)mg->mg_obj;	433	av = (AV *)mg->mg_obj;
390		434
391	if (expect_false (AvFILLp (av) >= AvMAX (av)))	435	if (expect_false (AvFILLp (av) >= AvMAX (av)))
392	av_extend (av, AvMAX (av) + 1);	436	av_extend (av, AvMAX (av) + 1);
…		…
397	/ load & save, init *****************************************************/	441	/ load & save, init *****************************************************/
398		442
399	static void	443	static void
400	load_perl (pTHX_ Coro__State c)	444	load_perl (pTHX_ Coro__State c)
401	{	445	{
		446	perl_slots *slot = c->slot;
		447	c->slot = 0;
		448
		449	PL_mainstack = c->mainstack;
		450
		451	GvSV (PL_defgv) = slot->defsv;
		452	GvAV (PL_defgv) = slot->defav;
		453	GvSV (PL_errgv) = slot->errsv;
		454	GvSV (irsgv) = slot->irsgv;
		455
402	#define VAR(name,type) PL_ ## name = c->name;	456	#define VAR(name,type) PL_ ## name = slot->name;
403	# include "state.h"	457	# include "state.h"
404	#undef VAR	458	#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		459
411	{	460	{
412	dSP;	461	dSP;
		462
413	CV *cv;	463	CV *cv;
414		464
415	/* now do the ugly restore mess */	465	/* now do the ugly restore mess */
416	while (expect_true (cv = (CV *)POPs))	466	while (expect_true (cv = (CV *)POPs))
417	{	467	{
…		…
472	}	522	}
473		523
474	PUTBACK;	524	PUTBACK;
475	}	525	}
476		526
		527	/* allocate some space on the context stack for our purposes */
		528	/* we manually unroll here, as usually 2 slots is enough */
		529	if (SLOT_COUNT >= 1) CXINC;
		530	if (SLOT_COUNT >= 2) CXINC;
		531	if (SLOT_COUNT >= 3) CXINC;
		532	{
		533	int i;
		534	for (i = 3; i < SLOT_COUNT; ++i)
		535	CXINC;
		536	}
		537	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		538
		539	c->mainstack = PL_mainstack;
		540
		541	{
		542	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		543
477	c->defav = GvAV (PL_defgv);	544	slot->defav = GvAV (PL_defgv);
478	c->defsv = DEFSV;	545	slot->defsv = DEFSV;
479	c->errsv = ERRSV;	546	slot->errsv = ERRSV;
480	c->irssv_sv = GvSV (irsgv);	547	slot->irsgv = GvSV (irsgv);
481		548
482	#define VAR(name,type)c->name = PL_ ## name;	549	#define VAR(name,type) slot->name = PL_ ## name;
483	# include "state.h"	550	# include "state.h"
484	#undef VAR	551	#undef VAR
		552	}
485	}	553	}
486		554
487	/*	555	/*
488	* allocate various perl stacks. This is an exact copy	556	* allocate various perl stacks. This is an exact copy
489	* of perl.c:init_stacks, except that it uses less memory	557	* of perl.c:init_stacks, except that it uses less memory
…		…
494	# define coro_init_stacks init_stacks	562	# define coro_init_stacks init_stacks
495	#else	563	#else
496	static void	564	static void
497	coro_init_stacks (pTHX)	565	coro_init_stacks (pTHX)
498	{	566	{
499	PL_curstackinfo = new_stackinfo(64, 6);	567	PL_curstackinfo = new_stackinfo(32, 8);
500	PL_curstackinfo->si_type = PERLSI_MAIN;	568	PL_curstackinfo->si_type = PERLSI_MAIN;
501	PL_curstack = PL_curstackinfo->si_stack;	569	PL_curstack = PL_curstackinfo->si_stack;
502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	570	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
503		571
504	PL_stack_base = AvARRAY(PL_curstack);	572	PL_stack_base = AvARRAY(PL_curstack);
505	PL_stack_sp = PL_stack_base;	573	PL_stack_sp = PL_stack_base;
506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	574	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
507		575
508	New(50,PL_tmps_stack,64,SV*);	576	New(50,PL_tmps_stack,32,SV*);
509	PL_tmps_floor = -1;	577	PL_tmps_floor = -1;
510	PL_tmps_ix = -1;	578	PL_tmps_ix = -1;
511	PL_tmps_max = 64;	579	PL_tmps_max = 32;
512		580
513	New(54,PL_markstack,16,I32);	581	New(54,PL_markstack,16,I32);
514	PL_markstack_ptr = PL_markstack;	582	PL_markstack_ptr = PL_markstack;
515	PL_markstack_max = PL_markstack + 16;	583	PL_markstack_max = PL_markstack + 16;
516		584
517	#ifdef SET_MARK_OFFSET	585	#ifdef SET_MARK_OFFSET
518	SET_MARK_OFFSET;	586	SET_MARK_OFFSET;
519	#endif	587	#endif
520		588
521	New(54,PL_scopestack,16,I32);	589	New(54,PL_scopestack,8,I32);
522	PL_scopestack_ix = 0;	590	PL_scopestack_ix = 0;
523	PL_scopestack_max = 16;	591	PL_scopestack_max = 8;
524		592
525	New(54,PL_savestack,64,ANY);	593	New(54,PL_savestack,24,ANY);
526	PL_savestack_ix = 0;	594	PL_savestack_ix = 0;
527	PL_savestack_max = 64;	595	PL_savestack_max = 24;
528		596
529	#if !PERL_VERSION_ATLEAST (5,9,0)	597	#if !PERL_VERSION_ATLEAST (5,10,0)
530	New(54,PL_retstack,4,OP*);	598	New(54,PL_retstack,4,OP*);
531	PL_retstack_ix = 0;	599	PL_retstack_ix = 0;
532	PL_retstack_max = 4;	600	PL_retstack_max = 4;
533	#endif	601	#endif
534	}	602	}
…		…
557		625
558	Safefree (PL_tmps_stack);	626	Safefree (PL_tmps_stack);
559	Safefree (PL_markstack);	627	Safefree (PL_markstack);
560	Safefree (PL_scopestack);	628	Safefree (PL_scopestack);
561	Safefree (PL_savestack);	629	Safefree (PL_savestack);
562	#if !PERL_VERSION_ATLEAST (5,9,0)	630	#if !PERL_VERSION_ATLEAST (5,10,0)
563	Safefree (PL_retstack);	631	Safefree (PL_retstack);
564	#endif	632	#endif
565	}	633	}
566		634
567	static size_t	635	static size_t
…		…
569	{	637	{
570	size_t rss = sizeof (*coro);	638	size_t rss = sizeof (*coro);
571		639
572	if (coro->mainstack)	640	if (coro->mainstack)
573	{	641	{
		642	perl_slots tmp_slot;
		643	perl_slots *slot;
		644
574	if (coro->flags & CF_RUNNING)	645	if (coro->flags & CF_RUNNING)
575	{	646	{
		647	slot = &tmp_slot;
		648
576	#define VAR(name,type)coro->name = PL_ ## name;	649	#define VAR(name,type) slot->name = PL_ ## name;
577	# include "state.h"	650	# include "state.h"
578	#undef VAR	651	#undef VAR
579	}	652	}
		653	else
		654	slot = coro->slot;
580		655
581	rss += sizeof (coro->curstackinfo);	656	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);	657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
585	rss += coro->tmps_max * sizeof (SV *);	659	rss += slot->tmps_max * sizeof (SV *);
586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
587	rss += coro->scopestack_max * sizeof (I32);	661	rss += slot->scopestack_max * sizeof (I32);
588	rss += coro->savestack_max * sizeof (ANY);	662	rss += slot->savestack_max * sizeof (ANY);
589		663
590	#if !PERL_VERSION_ATLEAST (5,9,0)	664	#if !PERL_VERSION_ATLEAST (5,10,0)
591	rss += coro->retstack_max * sizeof (OP *);	665	rss += slot->retstack_max * sizeof (OP *);
592	#endif	666	#endif
593	}	667	}
594		668
595	return rss;	669	return rss;
596	}	670	}
597		671
598	/ coroutine stack handling **********************************************/	672	/ coroutine stack handling **********************************************/
		673
		674	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		675	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		676
		677	/*
		678	* This overrides the default magic get method of %SIG elements.
		679	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		680	* and instead of tryign to save and restore the hash elements, we just provide
		681	* readback here.
		682	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		683	* not expecting this to actually change the hook. This is a potential problem
		684	* when a schedule happens then, but we ignore this.
		685	*/
		686	static int
		687	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		688	{
		689	const char *s = MgPV_nolen_const (mg);
		690
		691	if (*s == '_')
		692	{
		693	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		694	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		695	}
		696
		697	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		698	}
		699
		700	static int
		701	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		702	{
		703	const char *s = MgPV_nolen_const (mg);
		704
		705	if (*s == '_')
		706	{
		707	SV **svp = 0;
		708
		709	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		710	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		711
		712	if (svp)
		713	{
		714	SV old = svp;
		715	*svp = newSVsv (sv);
		716	SvREFCNT_dec (old);
		717	return;
		718	}
		719	}
		720
		721	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		722	}
599		723
600	static void	724	static void
601	coro_setup (pTHX_ struct coro *coro)	725	coro_setup (pTHX_ struct coro *coro)
602	{	726	{
603	/*	727	/*
…		…
612	PL_curpm = 0;	736	PL_curpm = 0;
613	PL_curpad = 0;	737	PL_curpad = 0;
614	PL_localizing = 0;	738	PL_localizing = 0;
615	PL_dirty = 0;	739	PL_dirty = 0;
616	PL_restartop = 0;	740	PL_restartop = 0;
		741	#if PERL_VERSION_ATLEAST (5,10,0)
		742	PL_parser = 0;
		743	#endif
		744
		745	/* recreate the die/warn hooks */
		746	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		747	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
617		748
618	GvSV (PL_defgv) = newSV (0);	749	GvSV (PL_defgv) = newSV (0);
619	GvAV (PL_defgv) = coro->args; coro->args = 0;	750	GvAV (PL_defgv) = coro->args; coro->args = 0;
620	GvSV (PL_errgv) = newSV (0);	751	GvSV (PL_errgv) = newSV (0);
621	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	752	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
636	PL_op = (OP *)&myop;	767	PL_op = (OP *)&myop;
637	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	768	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
638	SPAGAIN;	769	SPAGAIN;
639	}	770	}
640		771
641	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	772	/* this newly created coroutine might be run on an existing cctx which most
		773	* likely was suspended in set_stacklevel, called from entersub.
		774	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		775	* so we ENTER here for symmetry
		776	*/
		777	ENTER;
642	}	778	}
643		779
644	static void	780	static void
645	coro_destroy (pTHX_ struct coro *coro)	781	coro_destroy (pTHX_ struct coro *coro)
646	{	782	{
…		…
666	SvREFCNT_dec (GvSV (PL_errgv));	802	SvREFCNT_dec (GvSV (PL_errgv));
667	SvREFCNT_dec (PL_defoutgv);	803	SvREFCNT_dec (PL_defoutgv);
668	SvREFCNT_dec (PL_rs);	804	SvREFCNT_dec (PL_rs);
669	SvREFCNT_dec (GvSV (irsgv));	805	SvREFCNT_dec (GvSV (irsgv));
670		806
		807	SvREFCNT_dec (PL_diehook);
		808	SvREFCNT_dec (PL_warnhook);
		809
671	SvREFCNT_dec (coro->saved_deffh);	810	SvREFCNT_dec (coro->saved_deffh);
672	SvREFCNT_dec (coro->throw);	811	SvREFCNT_dec (coro->throw);
673		812
674	coro_destroy_stacks (aTHX);	813	coro_destroy_stacks (aTHX);
675	}	814	}
…		…
764	SAVETMPS;	903	SAVETMPS;
765	EXTEND (SP, 3);	904	EXTEND (SP, 3);
766	PUSHMARK (SP);	905	PUSHMARK (SP);
767	PUSHs (&PL_sv_yes);	906	PUSHs (&PL_sv_yes);
768	PUSHs (fullname);	907	PUSHs (fullname);
769	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	908	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
770	PUTBACK;	909	PUTBACK;
771	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	910	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);	911	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
773	SPAGAIN;	912	SPAGAIN;
774	FREETMPS;	913	FREETMPS;
…		…
810		949
811	/* inject a fake call to Coro::State::_cctx_init into the execution */	950	/* 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 */	951	/* _cctx_init should be careful, as it could be called at almost any time */
813	/* during execution of a perl program */	952	/* during execution of a perl program */
814	static void NOINLINE	953	static void NOINLINE
815	prepare_cctx (pTHX_ coro_cctx *cctx)	954	cctx_prepare (pTHX_ coro_cctx *cctx)
816	{	955	{
817	dSP;	956	dSP;
818	LOGOP myop;	957	LOGOP myop;
819		958
820	PL_top_env = &PL_start_env;	959	PL_top_env = &PL_start_env;
…		…
838		977
839	/*	978	/*
840	* this is a _very_ stripped down perl interpreter ;)	979	* this is a _very_ stripped down perl interpreter ;)
841	*/	980	*/
842	static void	981	static void
843	coro_run (void *arg)	982	cctx_run (void *arg)
844	{	983	{
845	dTHX;	984	dTHX;
846		985
847	/* coro_run is the alternative tail of transfer(), so unlock here. */	986	/* cctx_run is the alternative tail of transfer(), so unlock here. */
848	UNLOCK;	987	UNLOCK;
849		988
850	/* we now skip the entersub that lead to transfer() */	989	/* we now skip the entersub that lead to transfer() */
851	PL_op = PL_op->op_next;	990	PL_op = PL_op->op_next;
852		991
853	/* inject a fake subroutine call to cctx_init */	992	/* inject a fake subroutine call to cctx_init */
854	prepare_cctx (aTHX_ (coro_cctx *)arg);	993	cctx_prepare (aTHX_ (coro_cctx *)arg);
855		994
856	/* somebody or something will hit me for both perl_run and PL_restartop */	995	/* somebody or something will hit me for both perl_run and PL_restartop */
857	PL_restartop = PL_op;	996	PL_restartop = PL_op;
858	perl_run (PL_curinterp);	997	perl_run (PL_curinterp);
859		998
…		…
878	++cctx_count;	1017	++cctx_count;
879		1018
880	Newz (0, cctx, 1, coro_cctx);	1019	Newz (0, cctx, 1, coro_cctx);
881		1020
882	#if HAVE_MMAP	1021	#if HAVE_MMAP
883
884	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1022	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
885	/* mmap supposedly does allocate-on-write for us */	1023	/* 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);	1024	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
887		1025
888	if (cctx->sptr != (void *)-1)	1026	if (cctx->sptr != (void *)-1)
…		…
909	stack_start = cctx->sptr;	1047	stack_start = cctx->sptr;
910	stack_size = cctx->ssize;	1048	stack_size = cctx->ssize;
911	}	1049	}
912		1050
913	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1051	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
914	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1052	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
915		1053
916	return cctx;	1054	return cctx;
917	}	1055	}
918		1056
919	static void	1057	static void
…		…
991	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1129	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
992		1130
993	if (expect_false (next->flags & CF_DESTROYED))	1131	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");	1132	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
995		1133
		1134	#if !PERL_VERSION_ATLEAST (5,10,0)
996	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1135	if (expect_false (PL_lex_state != LEX_NOTPARSING))
997	croak ("Coro::State::transfer called while parsing, but this is not supported");	1136	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1137	#endif
998	}	1138	}
999	}	1139	}
1000		1140
1001	/* always use the TRANSFER macro */	1141	/* always use the TRANSFER macro */
1002	static void NOINLINE	1142	static void NOINLINE
1003	transfer (pTHX_ struct coro prev, struct coro next)	1143	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1004	{	1144	{
1005	dSTACKLEVEL;	1145	dSTACKLEVEL;
		1146	static volatile int has_throw;
1006		1147
1007	/* sometimes transfer is only called to set idle_sp */	1148	/* sometimes transfer is only called to set idle_sp */
1008	if (expect_false (!next))	1149	if (expect_false (!next))
1009	{	1150	{
1010	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1151	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1025	prev->flags &= ~CF_RUNNING;	1166	prev->flags &= ~CF_RUNNING;
1026	next->flags \|= CF_RUNNING;	1167	next->flags \|= CF_RUNNING;
1027		1168
1028	LOCK;	1169	LOCK;
1029		1170
		1171	/* first get rid of the old state */
		1172	save_perl (aTHX_ prev);
		1173
1030	if (expect_false (next->flags & CF_NEW))	1174	if (expect_false (next->flags & CF_NEW))
1031	{	1175	{
1032	/* need to start coroutine */	1176	/* need to start coroutine */
1033	next->flags &= ~CF_NEW;	1177	next->flags &= ~CF_NEW;
1034	/* first get rid of the old state */
1035	save_perl (aTHX_ prev);
1036	/* setup coroutine call */	1178	/* setup coroutine call */
1037	coro_setup (aTHX_ next);	1179	coro_setup (aTHX_ next);
1038	}	1180	}
1039	else	1181	else
1040	{
1041	/* coroutine already started */
1042	save_perl (aTHX_ prev);
1043	load_perl (aTHX_ next);	1182	load_perl (aTHX_ next);
1044	}
1045		1183
1046	prev__cctx = prev->cctx;	1184	prev__cctx = prev->cctx;
1047		1185
1048	/* possibly "free" the cctx */	1186	/* possibly "free" the cctx */
1049	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1187	if (expect_true (
		1188	prev__cctx->idle_sp == STACKLEVEL
		1189	&& !(prev__cctx->flags & CC_TRACE)
		1190	&& !force_cctx
		1191	))
1050	{	1192	{
1051	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1193	/* 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));	1194	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1053		1195
1054	prev->cctx = 0;	1196	prev->cctx = 0;
1055		1197
1056	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1198	/* 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 */	1199	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1058	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1200	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1201	if (!next->cctx)
1059	next->cctx = cctx_get (aTHX);	1202	next->cctx = cctx_get (aTHX);
1060		1203
1061	cctx_put (prev__cctx);	1204	cctx_put (prev__cctx);
1062	}	1205	}
1063		1206
1064	++next->usecount;	1207	++next->usecount;
1065		1208
1066	if (expect_true (!next->cctx))	1209	if (expect_true (!next->cctx))
1067	next->cctx = cctx_get (aTHX);	1210	next->cctx = cctx_get (aTHX);
		1211
		1212	has_throw = !!next->throw;
1068		1213
1069	if (expect_false (prev__cctx != next->cctx))	1214	if (expect_false (prev__cctx != next->cctx))
1070	{	1215	{
1071	prev__cctx->top_env = PL_top_env;	1216	prev__cctx->top_env = PL_top_env;
1072	PL_top_env = next->cctx->top_env;	1217	PL_top_env = next->cctx->top_env;
…		…
1074	}	1219	}
1075		1220
1076	free_coro_mortal (aTHX);	1221	free_coro_mortal (aTHX);
1077	UNLOCK;	1222	UNLOCK;
1078		1223
1079	if (expect_false (prev->throw \|\| next->throw))	1224	if (expect_false (has_throw))
1080	{	1225	{
1081	struct coro *coro = SvSTATE (coro_current);	1226	struct coro *coro = SvSTATE (coro_current);
1082		1227
1083	if (coro->throw)	1228	if (coro->throw)
1084	{	1229	{
…		…
1094	struct transfer_args	1239	struct transfer_args
1095	{	1240	{
1096	struct coro prev, next;	1241	struct coro prev, next;
1097	};	1242	};
1098		1243
1099	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1244	#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)	1245	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1101		1246
1102	/ high level stuff ******************************************************/	1247	/ high level stuff ******************************************************/
1103		1248
1104	static int	1249	static int
…		…
1130	save_perl (aTHX_ &temp);	1275	save_perl (aTHX_ &temp);
1131	load_perl (aTHX_ coro);	1276	load_perl (aTHX_ coro);
1132		1277
1133	coro_destroy (aTHX_ coro);	1278	coro_destroy (aTHX_ coro);
1134		1279
1135	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1280	load_perl (aTHX_ &temp);
1136		1281
1137	coro->mainstack = 0;	1282	coro->slot = 0;
1138	}	1283	}
1139		1284
1140	cctx_destroy (coro->cctx);	1285	cctx_destroy (coro->cctx);
1141	SvREFCNT_dec (coro->args);	1286	SvREFCNT_dec (coro->args);
1142		1287
…		…
1198	{	1343	{
1199	dTHX;	1344	dTHX;
1200	struct transfer_args ta;	1345	struct transfer_args ta;
1201		1346
1202	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1347	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1203	TRANSFER (ta);	1348	TRANSFER (ta, 1);
1204	}	1349	}
1205		1350
1206	/ Coro ******************************************************************/	1351	/ Coro ******************************************************************/
1207		1352
1208	static void	1353	static void
…		…
1210	{	1355	{
1211	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1356	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1212	}	1357	}
1213		1358
1214	static SV *	1359	static SV *
1215	coro_deq (pTHX_ int min_prio)	1360	coro_deq (pTHX)
1216	{	1361	{
1217	int prio = PRIO_MAX - PRIO_MIN;	1362	int prio;
1218		1363
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; )	1364	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1224	if (AvFILLp (coro_ready [prio]) >= 0)	1365	if (AvFILLp (coro_ready [prio]) >= 0)
1225	return av_shift (coro_ready [prio]);	1366	return av_shift (coro_ready [prio]);
1226		1367
1227	return 0;	1368	return 0;
1228	}	1369	}
…		…
1264	SV prev_sv, next_sv;	1405	SV prev_sv, next_sv;
1265		1406
1266	for (;;)	1407	for (;;)
1267	{	1408	{
1268	LOCK;	1409	LOCK;
1269	next_sv = coro_deq (aTHX_ PRIO_MIN);	1410	next_sv = coro_deq (aTHX);
1270		1411
1271	/* nothing to schedule: call the idle handler */	1412	/* nothing to schedule: call the idle handler */
1272	if (expect_false (!next_sv))	1413	if (expect_false (!next_sv))
1273	{	1414	{
1274	dSP;	1415	dSP;
…		…
1278	SAVETMPS;	1419	SAVETMPS;
1279		1420
1280	PUSHMARK (SP);	1421	PUSHMARK (SP);
1281	PUTBACK;	1422	PUTBACK;
1282	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1423	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1424	SPAGAIN;
1283		1425
1284	FREETMPS;	1426	FREETMPS;
1285	LEAVE;	1427	LEAVE;
1286	continue;	1428	continue;
1287	}	1429	}
…		…
1342	{	1484	{
1343	dTHX;	1485	dTHX;
1344	struct transfer_args ta;	1486	struct transfer_args ta;
1345		1487
1346	prepare_schedule (aTHX_ &ta);	1488	prepare_schedule (aTHX_ &ta);
1347	TRANSFER (ta);	1489	TRANSFER (ta, 1);
1348	}	1490	}
1349		1491
1350	static int	1492	static int
1351	api_cede (void)	1493	api_cede (void)
1352	{	1494	{
…		…
1355		1497
1356	prepare_cede (aTHX_ &ta);	1498	prepare_cede (aTHX_ &ta);
1357		1499
1358	if (expect_true (ta.prev != ta.next))	1500	if (expect_true (ta.prev != ta.next))
1359	{	1501	{
1360	TRANSFER (ta);	1502	TRANSFER (ta, 1);
1361	return 1;	1503	return 1;
1362	}	1504	}
1363	else	1505	else
1364	return 0;	1506	return 0;
1365	}	1507	}
…		…
1370	dTHX;	1512	dTHX;
1371	struct transfer_args ta;	1513	struct transfer_args ta;
1372		1514
1373	if (prepare_cede_notself (aTHX_ &ta))	1515	if (prepare_cede_notself (aTHX_ &ta))
1374	{	1516	{
1375	TRANSFER (ta);	1517	TRANSFER (ta, 1);
1376	return 1;	1518	return 1;
1377	}	1519	}
1378	else	1520	else
1379	return 0;	1521	return 0;
1380	}	1522	}
…		…
1399	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1541	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1400		1542
1401	if (coro->flags & CF_RUNNING)	1543	if (coro->flags & CF_RUNNING)
1402	PL_runops = RUNOPS_DEFAULT;	1544	PL_runops = RUNOPS_DEFAULT;
1403	else	1545	else
1404	coro->runops = RUNOPS_DEFAULT;	1546	coro->slot->runops = RUNOPS_DEFAULT;
1405	}	1547	}
1406	}	1548	}
1407		1549
1408	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1550	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1409		1551
…		…
1416	#endif	1558	#endif
1417	BOOT_PAGESIZE;	1559	BOOT_PAGESIZE;
1418		1560
1419	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1561	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1420	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1562	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1563
		1564	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1565	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1566	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1567	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1568
		1569	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1570	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1571	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1421		1572
1422	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1573	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1423		1574
1424	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1575	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1425	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1576	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1431		1582
1432	while (main_top_env->je_prev)	1583	while (main_top_env->je_prev)
1433	main_top_env = main_top_env->je_prev;	1584	main_top_env = main_top_env->je_prev;
1434		1585
1435	coroapi.ver = CORO_API_VERSION;	1586	coroapi.ver = CORO_API_VERSION;
		1587	coroapi.rev = CORO_API_REVISION;
1436	coroapi.transfer = api_transfer;	1588	coroapi.transfer = api_transfer;
1437		1589
1438	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1590	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1439	}	1591	}
1440		1592
1441	SV *	1593	SV *
1442	new (char *klass, ...)	1594	new (char *klass, ...)
1443	CODE:	1595	CODE:
1444	{	1596	{
1445	struct coro *coro;	1597	struct coro *coro;
		1598	MAGIC *mg;
1446	HV *hv;	1599	HV *hv;
1447	int i;	1600	int i;
1448		1601
1449	Newz (0, coro, 1, struct coro);	1602	Newz (0, coro, 1, struct coro);
1450	coro->args = newAV ();	1603	coro->args = newAV ();
…		…
1453	if (coro_first) coro_first->prev = coro;	1606	if (coro_first) coro_first->prev = coro;
1454	coro->next = coro_first;	1607	coro->next = coro_first;
1455	coro_first = coro;	1608	coro_first = coro;
1456		1609
1457	coro->hv = hv = newHV ();	1610	coro->hv = hv = newHV ();
1458	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1611	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1612	mg->mg_flags \|= MGf_DUP;
1459	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1613	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1460		1614
1461	av_extend (coro->args, items - 1);	1615	av_extend (coro->args, items - 1);
1462	for (i = 1; i < items; i++)	1616	for (i = 1; i < items; i++)
1463	av_push (coro->args, newSVsv (ST (i)));	1617	av_push (coro->args, newSVsv (ST (i)));
…		…
1477	Coro::cede_notself = 4	1631	Coro::cede_notself = 4
1478	CODE:	1632	CODE:
1479	{	1633	{
1480	struct transfer_args ta;	1634	struct transfer_args ta;
1481		1635
		1636	PUTBACK;
1482	switch (ix)	1637	switch (ix)
1483	{	1638	{
1484	case 0:	1639	case 0:
1485	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1640	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1486	ta.next = 0;	1641	ta.next = 0;
…		…
1505	if (!prepare_cede_notself (aTHX_ &ta))	1660	if (!prepare_cede_notself (aTHX_ &ta))
1506	XSRETURN_EMPTY;	1661	XSRETURN_EMPTY;
1507		1662
1508	break;	1663	break;
1509	}	1664	}
		1665	SPAGAIN;
1510		1666
1511	BARRIER;	1667	BARRIER;
		1668	PUTBACK;
1512	TRANSFER (ta);	1669	TRANSFER (ta, 0);
1513		1670	SPAGAIN; /* might be the sp of a different coroutine now */
1514	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1671	/* be extra careful not to ever do anything after TRANSFER */
1515	XSRETURN_YES;
1516	}	1672	}
1517		1673
1518	bool	1674	bool
1519	_destroy (SV *coro_sv)	1675	_destroy (SV *coro_sv)
1520	CODE:	1676	CODE:
…		…
1569	CODE:	1725	CODE:
1570	{	1726	{
1571	if (coro->mainstack)	1727	if (coro->mainstack)
1572	{	1728	{
1573	struct coro temp;	1729	struct coro temp;
1574	Zero (&temp, 1, struct coro);
1575		1730
1576	if (!(coro->flags & CF_RUNNING))	1731	if (!(coro->flags & CF_RUNNING))
1577	{	1732	{
		1733	PUTBACK;
1578	save_perl (aTHX_ &temp);	1734	save_perl (aTHX_ &temp);
1579	load_perl (aTHX_ coro);	1735	load_perl (aTHX_ coro);
1580	}	1736	}
1581		1737
1582	{	1738	{
1583	dSP;	1739	dSP;
1584	ENTER;	1740	ENTER;
1585	SAVETMPS;	1741	SAVETMPS;
		1742	PUTBACK;
		1743	PUSHSTACK;
1586	PUSHMARK (SP);	1744	PUSHMARK (SP);
1587	PUTBACK;	1745
1588	if (ix)	1746	if (ix)
1589	eval_sv (coderef, 0);	1747	eval_sv (coderef, 0);
1590	else	1748	else
1591	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1749	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1750
		1751	POPSTACK;
1592	SPAGAIN;	1752	SPAGAIN;
1593	FREETMPS;	1753	FREETMPS;
1594	LEAVE;	1754	LEAVE;
1595	PUTBACK;	1755	PUTBACK;
1596	}	1756	}
1597		1757
1598	if (!(coro->flags & CF_RUNNING))	1758	if (!(coro->flags & CF_RUNNING))
1599	{	1759	{
1600	save_perl (aTHX_ coro);	1760	save_perl (aTHX_ coro);
1601	load_perl (aTHX_ &temp);	1761	load_perl (aTHX_ &temp);
		1762	SPAGAIN;
1602	}	1763	}
1603	}	1764	}
1604	}	1765	}
1605		1766
1606	SV *	1767	SV *
…		…
1647	case 1: RETVAL = coro->usecount; break;	1808	case 1: RETVAL = coro->usecount; break;
1648	}	1809	}
1649	OUTPUT:	1810	OUTPUT:
1650	RETVAL	1811	RETVAL
1651		1812
		1813	void
		1814	force_cctx ()
		1815	CODE:
		1816	struct coro *coro = SvSTATE (coro_current);
		1817	coro->cctx->idle_sp = 0;
1652		1818
1653	MODULE = Coro::State PACKAGE = Coro	1819	MODULE = Coro::State PACKAGE = Coro
1654		1820
1655	BOOT:	1821	BOOT:
1656	{	1822	{
1657	int i;	1823	int i;
1658		1824
1659	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1825	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1660	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1826	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1661	av_async_pool = get_av ("Coro::async_pool", TRUE);	1827	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1662		1828
1663	coro_current = get_sv ("Coro::current", FALSE);	1829	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1664	SvREADONLY_on (coro_current);	1830	SvREADONLY_on (coro_current);
1665		1831
1666	coro_stash = gv_stashpv ("Coro", TRUE);	1832	coro_stash = gv_stashpv ("Coro", TRUE);
1667		1833
1668	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1834	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1669	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1835	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1670	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1836	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1671	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1837	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1674		1840
1675	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1841	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1676	coro_ready[i] = newAV ();	1842	coro_ready[i] = newAV ();
1677		1843
1678	{	1844	{
1679	SV *sv = perl_get_sv("Coro::API", 1);	1845	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1846	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1680		1847
1681	coroapi.schedule = api_schedule;	1848	coroapi.schedule = api_schedule;
1682	coroapi.cede = api_cede;	1849	coroapi.cede = api_cede;
1683	coroapi.cede_notself = api_cede_notself;	1850	coroapi.cede_notself = api_cede_notself;
1684	coroapi.ready = api_ready;	1851	coroapi.ready = api_ready;
…		…
1742	PROTOTYPE: $;$	1909	PROTOTYPE: $;$
1743	CODE:	1910	CODE:
1744	SvREFCNT_dec (self->throw);	1911	SvREFCNT_dec (self->throw);
1745	self->throw = SvOK (throw) ? newSVsv (throw) : 0;	1912	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1746		1913
		1914	void
		1915	swap_defsv (Coro::State self)
		1916	PROTOTYPE: $
		1917	ALIAS:
		1918	swap_defav = 1
		1919	CODE:
		1920	if (!self->slot)
		1921	croak ("cannot swap state with coroutine that has no saved state");
		1922	else
		1923	{
		1924	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1925	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1926
		1927	SV tmp = src; src = dst; *dst = tmp;
		1928	}
		1929
1747	# for async_pool speedup	1930	# for async_pool speedup
1748	void	1931	void
1749	_pool_1 (SV *cb)	1932	_pool_1 (SV *cb)
1750	CODE:	1933	CODE:
1751	{	1934	{
…		…
1755	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1938	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1756	AV *invoke_av;	1939	AV *invoke_av;
1757	int i, len;	1940	int i, len;
1758		1941
1759	if (!invoke)	1942	if (!invoke)
		1943	{
		1944	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1760	croak ("\3terminate\2\n");	1945	croak ("\3async_pool terminate\2\n");
		1946	}
1761		1947
1762	SvREFCNT_dec (coro->saved_deffh);	1948	SvREFCNT_dec (coro->saved_deffh);
1763	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1949	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1764		1950
1765	hv_store (hv, "desc", sizeof ("desc") - 1,	1951	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1791	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	1977	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1792	coro->saved_deffh = 0;	1978	coro->saved_deffh = 0;
1793		1979
1794	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1980	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1795	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1981	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1982	{
		1983	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1796	croak ("\3terminate\2\n");	1984	croak ("\3async_pool terminate\2\n");
		1985	}
1797		1986
1798	av_clear (GvAV (PL_defgv));	1987	av_clear (GvAV (PL_defgv));
1799	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1988	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1800	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1989	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1801		1990

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Comparing Coro/Coro/State.xs (file contents): Revision 1.196 by root, Sat Oct 6 01:11:01 2007 UTC vs. Revision 1.230 by root, Mon Apr 14 11:28:59 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.196 by root, Sat Oct 6 01:11:01 2007 UTC vs.
Revision 1.230 by root, Mon Apr 14 11:28:59 2008 UTC