[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 1.238 by root, Sat May 31 12:10:55 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	# define setjmp _setjmp // deep magic, don't ask
		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;
		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
157		178
158	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
159	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
160		181
161	enum {	182	enum {
…		…
192	CF_READY = 0x0002, /* coroutine is ready */	213	CF_READY = 0x0002, /* coroutine is ready */
193	CF_NEW = 0x0004, /* has never been switched to */	214	CF_NEW = 0x0004, /* has never been switched to */
194	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	215	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
195	};	216	};
196		217
		218	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		219	typedef struct {
		220	SV *defsv;
		221	AV *defav;
		222	SV *errsv;
		223	SV *irsgv;
		224	#define VAR(name,type) type name;
		225	# include "state.h"
		226	#undef VAR
		227	} perl_slots;
		228
		229	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		230
197	/* this is a structure representing a perl-level coroutine */	231	/* this is a structure representing a perl-level coroutine */
198	struct coro {	232	struct coro {
199	/* the c coroutine allocated to this perl coroutine, if any */	233	/* the c coroutine allocated to this perl coroutine, if any */
200	coro_cctx *cctx;	234	coro_cctx *cctx;
201		235
		236	/* process data */
		237	AV *mainstack;
		238	perl_slots slot; / basically the saved sp */
		239
202	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
203	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
204	int refcnt;
205	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
206		243	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		244
219	/* statistics */	245	/* statistics */
220	int usecount; /* number of transfers to this coro */	246	int usecount; /* number of transfers to this coro */
221		247
222	/* coro process data */	248	/* coro process data */
223	int prio;	249	int prio;
224	SV *throw;	250	SV throw; / exception to be thrown */
225		251
226	/* async_pool */	252	/* async_pool */
227	SV *saved_deffh;	253	SV *saved_deffh;
228		254
229	/* linked list */	255	/* linked list */
230	struct coro next, prev;	256	struct coro next, prev;
231	HV hv; / the perl hash associated with this coro, if any */
232	};	257	};
233		258
234	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
235	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
236		261
…		…
243	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
244	#define PRIO_MIN -4	269	#define PRIO_MIN -4
245		270
246	/* for Coro.pm */	271	/* for Coro.pm */
247	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
248	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
249	static int coro_nready;	275	static int coro_nready;
250	static struct coro *coro_first;	276	static struct coro *coro_first;
251		277
252	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
253		279
		280	static SV *
		281	coro_get_sv (pTHX_ const char *name, int create)
		282	{
		283	#if PERL_VERSION_ATLEAST (5,10,0)
		284	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		285	get_sv (name, create);
		286	#endif
		287	return get_sv (name, create);
		288	}
		289
		290	static AV *
		291	coro_get_av (pTHX_ const char *name, int create)
		292	{
		293	#if PERL_VERSION_ATLEAST (5,10,0)
		294	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		295	get_av (name, create);
		296	#endif
		297	return get_av (name, create);
		298	}
		299
		300	static HV *
		301	coro_get_hv (pTHX_ const char *name, int create)
		302	{
		303	#if PERL_VERSION_ATLEAST (5,10,0)
		304	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		305	get_hv (name, create);
		306	#endif
		307	return get_hv (name, create);
		308	}
		309
254	static AV *	310	static AV *
255	coro_clone_padlist (pTHX_ CV *cv)	311	coro_clone_padlist (pTHX_ CV *cv)
256	{	312	{
257	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
258	AV newpadlist, newpad;	314	AV newpadlist, newpad;
259		315
260	newpadlist = newAV ();	316	newpadlist = newAV ();
261	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
262	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
263	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
264	#else	320	#else
265	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
266	#endif	322	#endif
267	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
305		361
306	/* casting is fun. */	362	/* casting is fun. */
307	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
308	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
309		365
310	SvREFCNT_dec (av);
311
312	return 0;	366	return 0;
313	}	367	}
314		368
315	#define PERL_MAGIC_coro PERL_MAGIC_ext	369	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		370	#define CORO_MAGIC_type_state PERL_MAGIC_ext
316		371
317	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	372	static MGVTBL coro_cv_vtbl = {
		373	0, 0, 0, 0,
		374	coro_cv_free
		375	};
318		376
319	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
320	SvMAGIC (cv) \	378	SvMAGIC (sv) \
321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
322	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
324	: 0	382	: 0
		383
		384	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		385	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
325		386
326	static struct coro *	387	static struct coro *
327	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
328	{	389	{
329	HV *stash;	390	HV *stash;
…		…
341	/* very slow, but rare, check */	402	/* very slow, but rare, check */
342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343	croak ("Coro::State object required");	404	croak ("Coro::State object required");
344	}	405	}
345		406
346	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
347	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
348	}	409	}
349		410
350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351		412
352	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
353	static void	414	static void
354	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
355	{	416	{
356	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
357	AV *av;	418	AV *av;
358		419
359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
361	else	422	else
…		…
373	}	434	}
374		435
375	static void	436	static void
376	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
377	{	438	{
378	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
379	AV *av;	440	AV *av;
380		441
381	if (expect_false (!mg))	442	if (expect_false (!mg))
382	{	443	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		444
389	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
390		446
391	if (expect_false (AvFILLp (av) >= AvMAX (av)))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
392	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
…		…
397	/ load & save, init *****************************************************/	453	/ load & save, init *****************************************************/
398		454
399	static void	455	static void
400	load_perl (pTHX_ Coro__State c)	456	load_perl (pTHX_ Coro__State c)
401	{	457	{
		458	perl_slots *slot = c->slot;
		459	c->slot = 0;
		460
		461	PL_mainstack = c->mainstack;
		462
		463	GvSV (PL_defgv) = slot->defsv;
		464	GvAV (PL_defgv) = slot->defav;
		465	GvSV (PL_errgv) = slot->errsv;
		466	GvSV (irsgv) = slot->irsgv;
		467
402	#define VAR(name,type) PL_ ## name = c->name;	468	#define VAR(name,type) PL_ ## name = slot->name;
403	# include "state.h"	469	# include "state.h"
404	#undef VAR	470	#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		471
411	{	472	{
412	dSP;	473	dSP;
		474
413	CV *cv;	475	CV *cv;
414		476
415	/* now do the ugly restore mess */	477	/* now do the ugly restore mess */
416	while (expect_true (cv = (CV *)POPs))	478	while (expect_true (cv = (CV *)POPs))
417	{	479	{
…		…
452		514
453	if (expect_true (CvDEPTH (cv)))	515	if (expect_true (CvDEPTH (cv)))
454	{	516	{
455	EXTEND (SP, 3);	517	EXTEND (SP, 3);
456	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
458	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
459		521
460	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
461	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
462	}	524	}
…		…
472	}	534	}
473		535
474	PUTBACK;	536	PUTBACK;
475	}	537	}
476		538
		539	/* allocate some space on the context stack for our purposes */
		540	/* we manually unroll here, as usually 2 slots is enough */
		541	if (SLOT_COUNT >= 1) CXINC;
		542	if (SLOT_COUNT >= 2) CXINC;
		543	if (SLOT_COUNT >= 3) CXINC;
		544	{
		545	int i;
		546	for (i = 3; i < SLOT_COUNT; ++i)
		547	CXINC;
		548	}
		549	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		550
		551	c->mainstack = PL_mainstack;
		552
		553	{
		554	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		555
477	c->defav = GvAV (PL_defgv);	556	slot->defav = GvAV (PL_defgv);
478	c->defsv = DEFSV;	557	slot->defsv = DEFSV;
479	c->errsv = ERRSV;	558	slot->errsv = ERRSV;
480	c->irssv_sv = GvSV (irsgv);	559	slot->irsgv = GvSV (irsgv);
481		560
482	#define VAR(name,type)c->name = PL_ ## name;	561	#define VAR(name,type) slot->name = PL_ ## name;
483	# include "state.h"	562	# include "state.h"
484	#undef VAR	563	#undef VAR
		564	}
485	}	565	}
486		566
487	/*	567	/*
488	* allocate various perl stacks. This is an exact copy	568	* allocate various perl stacks. This is an exact copy
489	* of perl.c:init_stacks, except that it uses less memory	569	* of perl.c:init_stacks, except that it uses less memory
…		…
494	# define coro_init_stacks init_stacks	574	# define coro_init_stacks init_stacks
495	#else	575	#else
496	static void	576	static void
497	coro_init_stacks (pTHX)	577	coro_init_stacks (pTHX)
498	{	578	{
499	PL_curstackinfo = new_stackinfo(64, 6);	579	PL_curstackinfo = new_stackinfo(32, 8);
500	PL_curstackinfo->si_type = PERLSI_MAIN;	580	PL_curstackinfo->si_type = PERLSI_MAIN;
501	PL_curstack = PL_curstackinfo->si_stack;	581	PL_curstack = PL_curstackinfo->si_stack;
502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	582	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
503		583
504	PL_stack_base = AvARRAY(PL_curstack);	584	PL_stack_base = AvARRAY(PL_curstack);
505	PL_stack_sp = PL_stack_base;	585	PL_stack_sp = PL_stack_base;
506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	586	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
507		587
508	New(50,PL_tmps_stack,64,SV*);	588	New(50,PL_tmps_stack,32,SV*);
509	PL_tmps_floor = -1;	589	PL_tmps_floor = -1;
510	PL_tmps_ix = -1;	590	PL_tmps_ix = -1;
511	PL_tmps_max = 64;	591	PL_tmps_max = 32;
512		592
513	New(54,PL_markstack,16,I32);	593	New(54,PL_markstack,16,I32);
514	PL_markstack_ptr = PL_markstack;	594	PL_markstack_ptr = PL_markstack;
515	PL_markstack_max = PL_markstack + 16;	595	PL_markstack_max = PL_markstack + 16;
516		596
517	#ifdef SET_MARK_OFFSET	597	#ifdef SET_MARK_OFFSET
518	SET_MARK_OFFSET;	598	SET_MARK_OFFSET;
519	#endif	599	#endif
520		600
521	New(54,PL_scopestack,16,I32);	601	New(54,PL_scopestack,8,I32);
522	PL_scopestack_ix = 0;	602	PL_scopestack_ix = 0;
523	PL_scopestack_max = 16;	603	PL_scopestack_max = 8;
524		604
525	New(54,PL_savestack,64,ANY);	605	New(54,PL_savestack,24,ANY);
526	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
527	PL_savestack_max = 64;	607	PL_savestack_max = 24;
528		608
529	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
530	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
531	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
532	PL_retstack_max = 4;	612	PL_retstack_max = 4;
533	#endif	613	#endif
534	}	614	}
…		…
557		637
558	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
559	Safefree (PL_markstack);	639	Safefree (PL_markstack);
560	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
561	Safefree (PL_savestack);	641	Safefree (PL_savestack);
562	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
563	Safefree (PL_retstack);	643	Safefree (PL_retstack);
564	#endif	644	#endif
565	}	645	}
566		646
567	static size_t	647	static size_t
…		…
569	{	649	{
570	size_t rss = sizeof (*coro);	650	size_t rss = sizeof (*coro);
571		651
572	if (coro->mainstack)	652	if (coro->mainstack)
573	{	653	{
		654	perl_slots tmp_slot;
		655	perl_slots *slot;
		656
574	if (coro->flags & CF_RUNNING)	657	if (coro->flags & CF_RUNNING)
575	{	658	{
		659	slot = &tmp_slot;
		660
576	#define VAR(name,type)coro->name = PL_ ## name;	661	#define VAR(name,type) slot->name = PL_ ## name;
577	# include "state.h"	662	# include "state.h"
578	#undef VAR	663	#undef VAR
579	}	664	}
		665	else
		666	slot = coro->slot;
580		667
581	rss += sizeof (coro->curstackinfo);	668	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);	669	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	670	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
585	rss += coro->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
587	rss += coro->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
588	rss += coro->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
589		675
590	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
591	rss += coro->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
592	#endif	678	#endif
593	}	679	}
594		680
595	return rss;	681	return rss;
596	}	682	}
597		683
598	/ coroutine stack handling **********************************************/	684	/ coroutine stack handling **********************************************/
		685
		686	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		687	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		688
		689	/* apparently < 5.8.8 */
		690	#undef MgPV_nolen_const
		691	#ifndef MgPV_nolen_const
		692	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		693	SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \
		694	(const char*)(mg)->mg_ptr)
		695	#endif
		696
		697	/*
		698	* This overrides the default magic get method of %SIG elements.
		699	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		700	* and instead of tryign to save and restore the hash elements, we just provide
		701	* readback here.
		702	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		703	* not expecting this to actually change the hook. This is a potential problem
		704	* when a schedule happens then, but we ignore this.
		705	*/
		706	static int
		707	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		708	{
		709	const char *s = MgPV_nolen_const (mg);
		710
		711	if (*s == '_')
		712	{
		713	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		714	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		715	}
		716
		717	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		718	}
		719
		720	static int
		721	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		722	{
		723	const char *s = MgPV_nolen_const (mg);
		724
		725	if (*s == '_')
		726	{
		727	SV **svp = 0;
		728
		729	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		730	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		731
		732	if (svp)
		733	{
		734	SV old = svp;
		735	*svp = newSVsv (sv);
		736	SvREFCNT_dec (old);
		737	return 0;
		738	}
		739	}
		740
		741	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		742	}
599		743
600	static void	744	static void
601	coro_setup (pTHX_ struct coro *coro)	745	coro_setup (pTHX_ struct coro *coro)
602	{	746	{
603	/*	747	/*
…		…
612	PL_curpm = 0;	756	PL_curpm = 0;
613	PL_curpad = 0;	757	PL_curpad = 0;
614	PL_localizing = 0;	758	PL_localizing = 0;
615	PL_dirty = 0;	759	PL_dirty = 0;
616	PL_restartop = 0;	760	PL_restartop = 0;
		761	#if PERL_VERSION_ATLEAST (5,10,0)
		762	PL_parser = 0;
		763	#endif
		764
		765	/* recreate the die/warn hooks */
		766	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		767	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
617		768
618	GvSV (PL_defgv) = newSV (0);	769	GvSV (PL_defgv) = newSV (0);
619	GvAV (PL_defgv) = coro->args; coro->args = 0;	770	GvAV (PL_defgv) = coro->args; coro->args = 0;
620	GvSV (PL_errgv) = newSV (0);	771	GvSV (PL_errgv) = newSV (0);
621	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	772	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
636	PL_op = (OP *)&myop;	787	PL_op = (OP *)&myop;
637	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	788	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
638	SPAGAIN;	789	SPAGAIN;
639	}	790	}
640		791
641	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	792	/* this newly created coroutine might be run on an existing cctx which most
		793	* likely was suspended in set_stacklevel, called from entersub.
		794	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		795	* so we ENTER here for symmetry
		796	*/
		797	ENTER;
642	}	798	}
643		799
644	static void	800	static void
645	coro_destroy (pTHX_ struct coro *coro)	801	coro_destroy (pTHX_ struct coro *coro)
646	{	802	{
…		…
666	SvREFCNT_dec (GvSV (PL_errgv));	822	SvREFCNT_dec (GvSV (PL_errgv));
667	SvREFCNT_dec (PL_defoutgv);	823	SvREFCNT_dec (PL_defoutgv);
668	SvREFCNT_dec (PL_rs);	824	SvREFCNT_dec (PL_rs);
669	SvREFCNT_dec (GvSV (irsgv));	825	SvREFCNT_dec (GvSV (irsgv));
670		826
		827	SvREFCNT_dec (PL_diehook);
		828	SvREFCNT_dec (PL_warnhook);
		829
671	SvREFCNT_dec (coro->saved_deffh);	830	SvREFCNT_dec (coro->saved_deffh);
672	SvREFCNT_dec (coro->throw);	831	SvREFCNT_dec (coro->throw);
673		832
674	coro_destroy_stacks (aTHX);	833	coro_destroy_stacks (aTHX);
675	}	834	}
…		…
764	SAVETMPS;	923	SAVETMPS;
765	EXTEND (SP, 3);	924	EXTEND (SP, 3);
766	PUSHMARK (SP);	925	PUSHMARK (SP);
767	PUSHs (&PL_sv_yes);	926	PUSHs (&PL_sv_yes);
768	PUSHs (fullname);	927	PUSHs (fullname);
769	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	928	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
770	PUTBACK;	929	PUTBACK;
771	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	930	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);	931	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
773	SPAGAIN;	932	SPAGAIN;
774	FREETMPS;	933	FREETMPS;
…		…
810		969
811	/* inject a fake call to Coro::State::_cctx_init into the execution */	970	/* 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 */	971	/* _cctx_init should be careful, as it could be called at almost any time */
813	/* during execution of a perl program */	972	/* during execution of a perl program */
814	static void NOINLINE	973	static void NOINLINE
815	prepare_cctx (pTHX_ coro_cctx *cctx)	974	cctx_prepare (pTHX_ coro_cctx *cctx)
816	{	975	{
817	dSP;	976	dSP;
818	LOGOP myop;	977	LOGOP myop;
819		978
820	PL_top_env = &PL_start_env;	979	PL_top_env = &PL_start_env;
…		…
838		997
839	/*	998	/*
840	* this is a _very_ stripped down perl interpreter ;)	999	* this is a _very_ stripped down perl interpreter ;)
841	*/	1000	*/
842	static void	1001	static void
843	coro_run (void *arg)	1002	cctx_run (void *arg)
844	{	1003	{
845	dTHX;	1004	dTHX;
846		1005
847	/* coro_run is the alternative tail of transfer(), so unlock here. */	1006	/* cctx_run is the alternative tail of transfer(), so unlock here. */
848	UNLOCK;	1007	UNLOCK;
849		1008
850	/* we now skip the entersub that lead to transfer() */	1009	/* we now skip the entersub that lead to transfer() */
851	PL_op = PL_op->op_next;	1010	PL_op = PL_op->op_next;
852		1011
853	/* inject a fake subroutine call to cctx_init */	1012	/* inject a fake subroutine call to cctx_init */
854	prepare_cctx (aTHX_ (coro_cctx *)arg);	1013	cctx_prepare (aTHX_ (coro_cctx *)arg);
855		1014
856	/* somebody or something will hit me for both perl_run and PL_restartop */	1015	/* somebody or something will hit me for both perl_run and PL_restartop */
857	PL_restartop = PL_op;	1016	PL_restartop = PL_op;
858	perl_run (PL_curinterp);	1017	perl_run (PL_curinterp);
859		1018
…		…
878	++cctx_count;	1037	++cctx_count;
879		1038
880	Newz (0, cctx, 1, coro_cctx);	1039	Newz (0, cctx, 1, coro_cctx);
881		1040
882	#if HAVE_MMAP	1041	#if HAVE_MMAP
883
884	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1042	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
885	/* mmap supposedly does allocate-on-write for us */	1043	/* 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);	1044	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
887		1045
888	if (cctx->sptr != (void *)-1)	1046	if (cctx->sptr != (void *)-1)
…		…
909	stack_start = cctx->sptr;	1067	stack_start = cctx->sptr;
910	stack_size = cctx->ssize;	1068	stack_size = cctx->ssize;
911	}	1069	}
912		1070
913	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1071	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
914	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1072	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
915		1073
916	return cctx;	1074	return cctx;
917	}	1075	}
918		1076
919	static void	1077	static void
…		…
991	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1149	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
992		1150
993	if (expect_false (next->flags & CF_DESTROYED))	1151	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");	1152	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
995		1153
		1154	#if !PERL_VERSION_ATLEAST (5,10,0)
996	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1155	if (expect_false (PL_lex_state != LEX_NOTPARSING))
997	croak ("Coro::State::transfer called while parsing, but this is not supported");	1156	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1157	#endif
998	}	1158	}
999	}	1159	}
1000		1160
1001	/* always use the TRANSFER macro */	1161	/* always use the TRANSFER macro */
1002	static void NOINLINE	1162	static void NOINLINE
1003	transfer (pTHX_ struct coro prev, struct coro next)	1163	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1004	{	1164	{
1005	dSTACKLEVEL;	1165	dSTACKLEVEL;
		1166	static volatile int has_throw;
1006		1167
1007	/* sometimes transfer is only called to set idle_sp */	1168	/* sometimes transfer is only called to set idle_sp */
1008	if (expect_false (!next))	1169	if (expect_false (!next))
1009	{	1170	{
1010	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1171	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1025	prev->flags &= ~CF_RUNNING;	1186	prev->flags &= ~CF_RUNNING;
1026	next->flags \|= CF_RUNNING;	1187	next->flags \|= CF_RUNNING;
1027		1188
1028	LOCK;	1189	LOCK;
1029		1190
		1191	/* first get rid of the old state */
		1192	save_perl (aTHX_ prev);
		1193
1030	if (expect_false (next->flags & CF_NEW))	1194	if (expect_false (next->flags & CF_NEW))
1031	{	1195	{
1032	/* need to start coroutine */	1196	/* need to start coroutine */
1033	next->flags &= ~CF_NEW;	1197	next->flags &= ~CF_NEW;
1034	/* first get rid of the old state */
1035	save_perl (aTHX_ prev);
1036	/* setup coroutine call */	1198	/* setup coroutine call */
1037	coro_setup (aTHX_ next);	1199	coro_setup (aTHX_ next);
1038	}	1200	}
1039	else	1201	else
1040	{
1041	/* coroutine already started */
1042	save_perl (aTHX_ prev);
1043	load_perl (aTHX_ next);	1202	load_perl (aTHX_ next);
1044	}
1045		1203
1046	prev__cctx = prev->cctx;	1204	prev__cctx = prev->cctx;
1047		1205
1048	/* possibly "free" the cctx */	1206	/* possibly "free" the cctx */
1049	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1207	if (expect_true (
		1208	prev__cctx->idle_sp == STACKLEVEL
		1209	&& !(prev__cctx->flags & CC_TRACE)
		1210	&& !force_cctx
		1211	))
1050	{	1212	{
1051	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1213	/* 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));	1214	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1053		1215
1054	prev->cctx = 0;	1216	prev->cctx = 0;
1055		1217
1056	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1218	/* 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 */	1219	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1058	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1220	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1221	if (!next->cctx)
1059	next->cctx = cctx_get (aTHX);	1222	next->cctx = cctx_get (aTHX);
1060		1223
1061	cctx_put (prev__cctx);	1224	cctx_put (prev__cctx);
1062	}	1225	}
1063		1226
1064	++next->usecount;	1227	++next->usecount;
1065		1228
1066	if (expect_true (!next->cctx))	1229	if (expect_true (!next->cctx))
1067	next->cctx = cctx_get (aTHX);	1230	next->cctx = cctx_get (aTHX);
		1231
		1232	has_throw = !!next->throw;
1068		1233
1069	if (expect_false (prev__cctx != next->cctx))	1234	if (expect_false (prev__cctx != next->cctx))
1070	{	1235	{
1071	prev__cctx->top_env = PL_top_env;	1236	prev__cctx->top_env = PL_top_env;
1072	PL_top_env = next->cctx->top_env;	1237	PL_top_env = next->cctx->top_env;
…		…
1074	}	1239	}
1075		1240
1076	free_coro_mortal (aTHX);	1241	free_coro_mortal (aTHX);
1077	UNLOCK;	1242	UNLOCK;
1078		1243
1079	if (expect_false (prev->throw \|\| next->throw))	1244	if (expect_false (has_throw))
1080	{	1245	{
1081	struct coro *coro = SvSTATE (coro_current);	1246	struct coro *coro = SvSTATE (coro_current);
1082		1247
1083	if (coro->throw)	1248	if (coro->throw)
1084	{	1249	{
…		…
1094	struct transfer_args	1259	struct transfer_args
1095	{	1260	{
1096	struct coro prev, next;	1261	struct coro prev, next;
1097	};	1262	};
1098		1263
1099	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1264	#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)	1265	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1101		1266
1102	/ high level stuff ******************************************************/	1267	/ high level stuff ******************************************************/
1103		1268
1104	static int	1269	static int
…		…
1130	save_perl (aTHX_ &temp);	1295	save_perl (aTHX_ &temp);
1131	load_perl (aTHX_ coro);	1296	load_perl (aTHX_ coro);
1132		1297
1133	coro_destroy (aTHX_ coro);	1298	coro_destroy (aTHX_ coro);
1134		1299
1135	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1300	load_perl (aTHX_ &temp);
1136		1301
1137	coro->mainstack = 0;	1302	coro->slot = 0;
1138	}	1303	}
1139		1304
1140	cctx_destroy (coro->cctx);	1305	cctx_destroy (coro->cctx);
1141	SvREFCNT_dec (coro->args);	1306	SvREFCNT_dec (coro->args);
1142		1307
…		…
1198	{	1363	{
1199	dTHX;	1364	dTHX;
1200	struct transfer_args ta;	1365	struct transfer_args ta;
1201		1366
1202	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1367	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1203	TRANSFER (ta);	1368	TRANSFER (ta, 1);
1204	}	1369	}
1205		1370
1206	/ Coro ******************************************************************/	1371	/ Coro ******************************************************************/
1207		1372
1208	static void	1373	static void
…		…
1210	{	1375	{
1211	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1376	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1212	}	1377	}
1213		1378
1214	static SV *	1379	static SV *
1215	coro_deq (pTHX_ int min_prio)	1380	coro_deq (pTHX)
1216	{	1381	{
1217	int prio = PRIO_MAX - PRIO_MIN;	1382	int prio;
1218		1383
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; )	1384	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1224	if (AvFILLp (coro_ready [prio]) >= 0)	1385	if (AvFILLp (coro_ready [prio]) >= 0)
1225	return av_shift (coro_ready [prio]);	1386	return av_shift (coro_ready [prio]);
1226		1387
1227	return 0;	1388	return 0;
1228	}	1389	}
…		…
1230	static int	1391	static int
1231	api_ready (SV *coro_sv)	1392	api_ready (SV *coro_sv)
1232	{	1393	{
1233	dTHX;	1394	dTHX;
1234	struct coro *coro;	1395	struct coro *coro;
		1396	SV *sv_hook;
		1397	void (*xs_hook)(void);
1235		1398
1236	if (SvROK (coro_sv))	1399	if (SvROK (coro_sv))
1237	coro_sv = SvRV (coro_sv);	1400	coro_sv = SvRV (coro_sv);
1238		1401
1239	coro = SvSTATE (coro_sv);	1402	coro = SvSTATE (coro_sv);
…		…
1242	return 0;	1405	return 0;
1243		1406
1244	coro->flags \|= CF_READY;	1407	coro->flags \|= CF_READY;
1245		1408
1246	LOCK;	1409	LOCK;
		1410
		1411	sv_hook = coro_nready ? 0 : coro_readyhook;
		1412	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1413
1247	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1414	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1248	++coro_nready;	1415	++coro_nready;
		1416
1249	UNLOCK;	1417	UNLOCK;
		1418
		1419	if (sv_hook)
		1420	{
		1421	dSP;
		1422
		1423	ENTER;
		1424	SAVETMPS;
		1425
		1426	PUSHMARK (SP);
		1427	PUTBACK;
		1428	call_sv (sv_hook, G_DISCARD);
		1429	SPAGAIN;
		1430
		1431	FREETMPS;
		1432	LEAVE;
		1433	}
		1434
		1435	if (xs_hook)
		1436	xs_hook ();
1250		1437
1251	return 1;	1438	return 1;
1252	}	1439	}
1253		1440
1254	static int	1441	static int
…		…
1264	SV prev_sv, next_sv;	1451	SV prev_sv, next_sv;
1265		1452
1266	for (;;)	1453	for (;;)
1267	{	1454	{
1268	LOCK;	1455	LOCK;
1269	next_sv = coro_deq (aTHX_ PRIO_MIN);	1456	next_sv = coro_deq (aTHX);
1270		1457
1271	/* nothing to schedule: call the idle handler */	1458	/* nothing to schedule: call the idle handler */
1272	if (expect_false (!next_sv))	1459	if (expect_false (!next_sv))
1273	{	1460	{
1274	dSP;	1461	dSP;
…		…
1278	SAVETMPS;	1465	SAVETMPS;
1279		1466
1280	PUSHMARK (SP);	1467	PUSHMARK (SP);
1281	PUTBACK;	1468	PUTBACK;
1282	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1469	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1470	SPAGAIN;
1283		1471
1284	FREETMPS;	1472	FREETMPS;
1285	LEAVE;	1473	LEAVE;
1286	continue;	1474	continue;
1287	}	1475	}
…		…
1342	{	1530	{
1343	dTHX;	1531	dTHX;
1344	struct transfer_args ta;	1532	struct transfer_args ta;
1345		1533
1346	prepare_schedule (aTHX_ &ta);	1534	prepare_schedule (aTHX_ &ta);
1347	TRANSFER (ta);	1535	TRANSFER (ta, 1);
1348	}	1536	}
1349		1537
1350	static int	1538	static int
1351	api_cede (void)	1539	api_cede (void)
1352	{	1540	{
…		…
1355		1543
1356	prepare_cede (aTHX_ &ta);	1544	prepare_cede (aTHX_ &ta);
1357		1545
1358	if (expect_true (ta.prev != ta.next))	1546	if (expect_true (ta.prev != ta.next))
1359	{	1547	{
1360	TRANSFER (ta);	1548	TRANSFER (ta, 1);
1361	return 1;	1549	return 1;
1362	}	1550	}
1363	else	1551	else
1364	return 0;	1552	return 0;
1365	}	1553	}
…		…
1370	dTHX;	1558	dTHX;
1371	struct transfer_args ta;	1559	struct transfer_args ta;
1372		1560
1373	if (prepare_cede_notself (aTHX_ &ta))	1561	if (prepare_cede_notself (aTHX_ &ta))
1374	{	1562	{
1375	TRANSFER (ta);	1563	TRANSFER (ta, 1);
1376	return 1;	1564	return 1;
1377	}	1565	}
1378	else	1566	else
1379	return 0;	1567	return 0;
1380	}	1568	}
…		…
1399	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1587	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1400		1588
1401	if (coro->flags & CF_RUNNING)	1589	if (coro->flags & CF_RUNNING)
1402	PL_runops = RUNOPS_DEFAULT;	1590	PL_runops = RUNOPS_DEFAULT;
1403	else	1591	else
1404	coro->runops = RUNOPS_DEFAULT;	1592	coro->slot->runops = RUNOPS_DEFAULT;
1405	}	1593	}
1406	}	1594	}
1407		1595
1408	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1596	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1409		1597
…		…
1416	#endif	1604	#endif
1417	BOOT_PAGESIZE;	1605	BOOT_PAGESIZE;
1418		1606
1419	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1607	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1420	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1608	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1609
		1610	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1611	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1612	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1613	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1614
		1615	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1616	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1617	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1421		1618
1422	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1619	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1423		1620
1424	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1621	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1425	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1622	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1430	main_top_env = PL_top_env;	1627	main_top_env = PL_top_env;
1431		1628
1432	while (main_top_env->je_prev)	1629	while (main_top_env->je_prev)
1433	main_top_env = main_top_env->je_prev;	1630	main_top_env = main_top_env->je_prev;
1434		1631
1435	coroapi.ver = CORO_API_VERSION;	1632	coroapi.ver = CORO_API_VERSION;
		1633	coroapi.rev = CORO_API_REVISION;
1436	coroapi.transfer = api_transfer;	1634	coroapi.transfer = api_transfer;
1437		1635
1438	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1636	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1439	}	1637	}
1440		1638
1441	SV *	1639	SV *
1442	new (char *klass, ...)	1640	new (char *klass, ...)
1443	CODE:	1641	CODE:
1444	{	1642	{
1445	struct coro *coro;	1643	struct coro *coro;
		1644	MAGIC *mg;
1446	HV *hv;	1645	HV *hv;
1447	int i;	1646	int i;
1448		1647
1449	Newz (0, coro, 1, struct coro);	1648	Newz (0, coro, 1, struct coro);
1450	coro->args = newAV ();	1649	coro->args = newAV ();
…		…
1453	if (coro_first) coro_first->prev = coro;	1652	if (coro_first) coro_first->prev = coro;
1454	coro->next = coro_first;	1653	coro->next = coro_first;
1455	coro_first = coro;	1654	coro_first = coro;
1456		1655
1457	coro->hv = hv = newHV ();	1656	coro->hv = hv = newHV ();
1458	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1657	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1658	mg->mg_flags \|= MGf_DUP;
1459	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1659	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1460		1660
1461	av_extend (coro->args, items - 1);	1661	av_extend (coro->args, items - 1);
1462	for (i = 1; i < items; i++)	1662	for (i = 1; i < items; i++)
1463	av_push (coro->args, newSVsv (ST (i)));	1663	av_push (coro->args, newSVsv (ST (i)));
…		…
1477	Coro::cede_notself = 4	1677	Coro::cede_notself = 4
1478	CODE:	1678	CODE:
1479	{	1679	{
1480	struct transfer_args ta;	1680	struct transfer_args ta;
1481		1681
		1682	PUTBACK;
1482	switch (ix)	1683	switch (ix)
1483	{	1684	{
1484	case 0:	1685	case 0:
1485	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1686	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1486	ta.next = 0;	1687	ta.next = 0;
…		…
1505	if (!prepare_cede_notself (aTHX_ &ta))	1706	if (!prepare_cede_notself (aTHX_ &ta))
1506	XSRETURN_EMPTY;	1707	XSRETURN_EMPTY;
1507		1708
1508	break;	1709	break;
1509	}	1710	}
		1711	SPAGAIN;
1510		1712
1511	BARRIER;	1713	BARRIER;
		1714	PUTBACK;
1512	TRANSFER (ta);	1715	TRANSFER (ta, 0);
1513		1716	SPAGAIN; /* might be the sp of a different coroutine now */
1514	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1717	/* be extra careful not to ever do anything after TRANSFER */
1515	XSRETURN_YES;
1516	}	1718	}
1517		1719
1518	bool	1720	bool
1519	_destroy (SV *coro_sv)	1721	_destroy (SV *coro_sv)
1520	CODE:	1722	CODE:
1521	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1723	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1522	OUTPUT:	1724	OUTPUT:
1523	RETVAL	1725	RETVAL
1524		1726
1525	void	1727	void
1526	_exit (code)	1728	_exit (int code)
1527	int code
1528	PROTOTYPE: $	1729	PROTOTYPE: $
1529	CODE:	1730	CODE:
1530	_exit (code);	1731	_exit (code);
1531		1732
1532	int	1733	int
…		…
1569	CODE:	1770	CODE:
1570	{	1771	{
1571	if (coro->mainstack)	1772	if (coro->mainstack)
1572	{	1773	{
1573	struct coro temp;	1774	struct coro temp;
1574	Zero (&temp, 1, struct coro);
1575		1775
1576	if (!(coro->flags & CF_RUNNING))	1776	if (!(coro->flags & CF_RUNNING))
1577	{	1777	{
		1778	PUTBACK;
1578	save_perl (aTHX_ &temp);	1779	save_perl (aTHX_ &temp);
1579	load_perl (aTHX_ coro);	1780	load_perl (aTHX_ coro);
1580	}	1781	}
1581		1782
1582	{	1783	{
1583	dSP;	1784	dSP;
1584	ENTER;	1785	ENTER;
1585	SAVETMPS;	1786	SAVETMPS;
		1787	PUTBACK;
		1788	PUSHSTACK;
1586	PUSHMARK (SP);	1789	PUSHMARK (SP);
1587	PUTBACK;	1790
1588	if (ix)	1791	if (ix)
1589	eval_sv (coderef, 0);	1792	eval_sv (coderef, 0);
1590	else	1793	else
1591	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1794	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1795
		1796	POPSTACK;
1592	SPAGAIN;	1797	SPAGAIN;
1593	FREETMPS;	1798	FREETMPS;
1594	LEAVE;	1799	LEAVE;
1595	PUTBACK;	1800	PUTBACK;
1596	}	1801	}
1597		1802
1598	if (!(coro->flags & CF_RUNNING))	1803	if (!(coro->flags & CF_RUNNING))
1599	{	1804	{
1600	save_perl (aTHX_ coro);	1805	save_perl (aTHX_ coro);
1601	load_perl (aTHX_ &temp);	1806	load_perl (aTHX_ &temp);
		1807	SPAGAIN;
1602	}	1808	}
1603	}	1809	}
1604	}	1810	}
1605		1811
1606	SV *	1812	SV *
…		…
1618		1824
1619	void	1825	void
1620	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1826	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1621		1827
1622	SV *	1828	SV *
1623	has_stack (Coro::State coro)	1829	has_cctx (Coro::State coro)
1624	PROTOTYPE: $	1830	PROTOTYPE: $
1625	CODE:	1831	CODE:
1626	RETVAL = boolSV (!!coro->cctx);	1832	RETVAL = boolSV (!!coro->cctx);
1627	OUTPUT:	1833	OUTPUT:
1628	RETVAL	1834	RETVAL
…		…
1647	case 1: RETVAL = coro->usecount; break;	1853	case 1: RETVAL = coro->usecount; break;
1648	}	1854	}
1649	OUTPUT:	1855	OUTPUT:
1650	RETVAL	1856	RETVAL
1651		1857
		1858	void
		1859	force_cctx ()
		1860	CODE:
		1861	struct coro *coro = SvSTATE (coro_current);
		1862	coro->cctx->idle_sp = 0;
1652		1863
1653	MODULE = Coro::State PACKAGE = Coro	1864	MODULE = Coro::State PACKAGE = Coro
1654		1865
1655	BOOT:	1866	BOOT:
1656	{	1867	{
1657	int i;	1868	int i;
1658		1869
1659	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1660	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1661	av_async_pool = get_av ("Coro::async_pool", TRUE);	1870	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1871	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1872	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1662		1873
1663	coro_current = get_sv ("Coro::current", FALSE);	1874	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1664	SvREADONLY_on (coro_current);	1875	SvREADONLY_on (coro_current);
1665		1876
1666	coro_stash = gv_stashpv ("Coro", TRUE);	1877	coro_stash = gv_stashpv ("Coro", TRUE);
1667		1878
1668	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1879	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1669	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1880	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1670	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1881	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1671	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1882	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1674		1885
1675	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1886	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1676	coro_ready[i] = newAV ();	1887	coro_ready[i] = newAV ();
1677		1888
1678	{	1889	{
1679	SV *sv = perl_get_sv("Coro::API", 1);	1890	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1891	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1680		1892
1681	coroapi.schedule = api_schedule;	1893	coroapi.schedule = api_schedule;
1682	coroapi.cede = api_cede;	1894	coroapi.cede = api_cede;
1683	coroapi.cede_notself = api_cede_notself;	1895	coroapi.cede_notself = api_cede_notself;
1684	coroapi.ready = api_ready;	1896	coroapi.ready = api_ready;
…		…
1697	PROTOTYPE: $	1909	PROTOTYPE: $
1698	CODE:	1910	CODE:
1699	SvREFCNT_dec (SvRV (coro_current));	1911	SvREFCNT_dec (SvRV (coro_current));
1700	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1912	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1701		1913
		1914	void
		1915	_set_readyhook (SV *hook)
		1916	PROTOTYPE: $
		1917	CODE:
		1918	LOCK;
		1919	SvREFCNT_dec (coro_readyhook);
		1920	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1921	UNLOCK;
		1922
1702	int	1923	int
1703	prio (Coro::State coro, int newprio = 0)	1924	prio (Coro::State coro, int newprio = 0)
1704	ALIAS:	1925	ALIAS:
1705	nice = 1	1926	nice = 1
1706	CODE:	1927	CODE:
…		…
1742	PROTOTYPE: $;$	1963	PROTOTYPE: $;$
1743	CODE:	1964	CODE:
1744	SvREFCNT_dec (self->throw);	1965	SvREFCNT_dec (self->throw);
1745	self->throw = SvOK (throw) ? newSVsv (throw) : 0;	1966	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1746		1967
		1968	void
		1969	swap_defsv (Coro::State self)
		1970	PROTOTYPE: $
		1971	ALIAS:
		1972	swap_defav = 1
		1973	CODE:
		1974	if (!self->slot)
		1975	croak ("cannot swap state with coroutine that has no saved state");
		1976	else
		1977	{
		1978	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1979	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1980
		1981	SV tmp = src; src = dst; *dst = tmp;
		1982	}
		1983
1747	# for async_pool speedup	1984	# for async_pool speedup
1748	void	1985	void
1749	_pool_1 (SV *cb)	1986	_pool_1 (SV *cb)
1750	CODE:	1987	CODE:
1751	{	1988	{
…		…
1755	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1992	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1756	AV *invoke_av;	1993	AV *invoke_av;
1757	int i, len;	1994	int i, len;
1758		1995
1759	if (!invoke)	1996	if (!invoke)
		1997	{
		1998	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1760	croak ("\3terminate\2\n");	1999	croak ("\3async_pool terminate\2\n");
		2000	}
1761		2001
1762	SvREFCNT_dec (coro->saved_deffh);	2002	SvREFCNT_dec (coro->saved_deffh);
1763	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2003	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1764		2004
1765	hv_store (hv, "desc", sizeof ("desc") - 1,	2005	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1791	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2031	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1792	coro->saved_deffh = 0;	2032	coro->saved_deffh = 0;
1793		2033
1794	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2034	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1795	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2035	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2036	{
		2037	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1796	croak ("\3terminate\2\n");	2038	croak ("\3async_pool terminate\2\n");
		2039	}
1797		2040
1798	av_clear (GvAV (PL_defgv));	2041	av_clear (GvAV (PL_defgv));
1799	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2042	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1800	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2043	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1801		2044
…		…
1840	PL_laststype = data->laststype;	2083	PL_laststype = data->laststype;
1841	PL_laststatval = data->laststatval;	2084	PL_laststatval = data->laststatval;
1842	PL_statcache = data->statcache;	2085	PL_statcache = data->statcache;
1843	}	2086	}
1844		2087
		2088
		2089	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2090
		2091	BOOT:
		2092	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2093
		2094	SV *
		2095	_schedule (...)
		2096	PROTOTYPE: @
		2097	CODE:
		2098	{
		2099	static int incede;
		2100
		2101	api_cede_notself ();
		2102
		2103	++incede;
		2104	while (coro_nready >= incede && api_cede ())
		2105	;
		2106
		2107	sv_setsv (sv_activity, &PL_sv_undef);
		2108	if (coro_nready >= incede)
		2109	{
		2110	PUSHMARK (SP);
		2111	PUTBACK;
		2112	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2113	SPAGAIN;
		2114	}
		2115
		2116	--incede;
		2117	}
		2118

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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 1.238 by root, Sat May 31 12:10:55 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 1.238 by root, Sat May 31 12:10:55 2008 UTC