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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.190 by root, Fri Oct 5 20:39:39 2007 UTC vs.
Revision 1.222 by root, Sun Jan 20 10:22:07 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
79		81
80	/* 5.8.8 */	82	/* 5.8.8 */
81	#ifndef GV_NOTQUAL	83	#ifndef GV_NOTQUAL
82	# define GV_NOTQUAL 0	84	# define GV_NOTQUAL 0
83	#endif	85	#endif
		86	#ifndef newSV
		87	# define newSV(l) NEWSV(0,l)
		88	#endif
84		89
85	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	90	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
86	# undef CORO_STACKGUARD	91	# undef CORO_STACKGUARD
87	#endif	92	#endif
88		93
…		…
103	#define IN_DESTRUCT (PL_main_cv == Nullcv)	108	#define IN_DESTRUCT (PL_main_cv == Nullcv)
104		109
105	#if __GNUC__ >= 3	110	#if __GNUC__ >= 3
106	# define attribute(x) __attribute__(x)	111	# define attribute(x) __attribute__(x)
107	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	112	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		113	# define expect(expr,value) __builtin_expect ((expr),(value))
108	#else	114	#else
109	# define attribute(x)	115	# define attribute(x)
110	# define BARRIER	116	# define BARRIER
		117	# define expect(expr,value) (expr)
111	#endif	118	#endif
		119
		120	#define expect_false(expr) expect ((expr) != 0, 0)
		121	#define expect_true(expr) expect ((expr) != 0, 1)
112		122
113	#define NOINLINE attribute ((noinline))	123	#define NOINLINE attribute ((noinline))
114		124
115	#include "CoroAPI.h"	125	#include "CoroAPI.h"
116		126
…		…
135	static size_t coro_stacksize = CORO_STACKSIZE;	145	static size_t coro_stacksize = CORO_STACKSIZE;
136	static struct CoroAPI coroapi;	146	static struct CoroAPI coroapi;
137	static AV main_mainstack; / used to differentiate between $main and others */	147	static AV main_mainstack; / used to differentiate between $main and others */
138	static JMPENV *main_top_env;	148	static JMPENV *main_top_env;
139	static HV coro_state_stash, coro_stash;	149	static HV coro_state_stash, coro_stash;
140	static SV coro_mortal; / will be freed after next transfer */	150	static volatile SV coro_mortal; / will be freed after next transfer */
141		151
142	static GV irsgv; / $/ */	152	static GV irsgv; / $/ */
143	static GV stdoutgv; / STDOUT /	153	static GV stdoutgv; / STDOUT /
		154	static SV *rv_diehook;
		155	static SV *rv_warnhook;
		156	static HV hv_sig; / %SIG */
144		157
145	/* async_pool helper stuff */	158	/* async_pool helper stuff */
146	static SV *sv_pool_rss;	159	static SV *sv_pool_rss;
147	static SV *sv_pool_size;	160	static SV *sv_pool_size;
148	static AV *av_async_pool;	161	static AV *av_async_pool;
…		…
184	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
185	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
186	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	199	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
187	};	200	};
188		201
		202	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		203	typedef struct {
		204	SV *defsv;
		205	AV *defav;
		206	SV *errsv;
		207	SV *irsgv;
		208	#define VAR(name,type) type name;
		209	# include "state.h"
		210	#undef VAR
		211	} perl_slots;
		212
		213	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		214
189	/* this is a structure representing a perl-level coroutine */	215	/* this is a structure representing a perl-level coroutine */
190	struct coro {	216	struct coro {
191	/* the c coroutine allocated to this perl coroutine, if any */	217	/* the c coroutine allocated to this perl coroutine, if any */
192	coro_cctx *cctx;	218	coro_cctx *cctx;
193		219
		220	/* process data */
		221	AV *mainstack;
		222	perl_slots slot; / basically the saved sp */
		223
194	/* data associated with this coroutine (initial args) */	224	AV args; / data associated with this coroutine (initial args) */
195	AV *args;	225	int refcnt; /* coroutines are refcounted, yes */
196	int refcnt;
197	int flags; /* CF_ flags */	226	int flags; /* CF_ flags */
198		227	HV hv; / the perl hash associated with this coro, if any */
199	/* optionally saved, might be zero */
200	AV defav; / @_ */
201	SV defsv; / $_ */
202	SV errsv; / $@ */
203	SV deffh; / default filehandle */
204	SV irssv; / $/ */
205	SV irssv_sv; / real $/ cache */
206
207	#define VAR(name,type) type name;
208	# include "state.h"
209	#undef VAR
210		228
211	/* statistics */	229	/* statistics */
212	int usecount; /* number of transfers to this coro */	230	int usecount; /* number of transfers to this coro */
213		231
214	/* coro process data */	232	/* coro process data */
215	int prio;	233	int prio;
216	//SV *throw;	234	SV throw; / exception to be thrown */
217		235
218	/* async_pool */	236	/* async_pool */
219	SV *saved_deffh;	237	SV *saved_deffh;
220		238
221	/* linked list */	239	/* linked list */
222	struct coro next, prev;	240	struct coro next, prev;
223	HV hv; / the perl hash associated with this coro, if any */
224	};	241	};
225		242
226	typedef struct coro *Coro__State;	243	typedef struct coro *Coro__State;
227	typedef struct coro *Coro__State_or_hashref;	244	typedef struct coro *Coro__State_or_hashref;
228		245
…		…
240	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	257	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
241	static int coro_nready;	258	static int coro_nready;
242	static struct coro *coro_first;	259	static struct coro *coro_first;
243		260
244	/ lowlevel stuff ********************************************************/	261	/ lowlevel stuff ********************************************************/
		262
		263	static SV *
		264	coro_get_sv (pTHX_ const char *name, int create)
		265	{
		266	#if PERL_VERSION_ATLEAST (5,9,0)
		267	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		268	get_sv (name, create);
		269	#endif
		270	return get_sv (name, create);
		271	}
		272
		273	static AV *
		274	coro_get_av (pTHX_ const char *name, int create)
		275	{
		276	#if PERL_VERSION_ATLEAST (5,9,0)
		277	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		278	get_av (name, create);
		279	#endif
		280	return get_av (name, create);
		281	}
		282
		283	static HV *
		284	coro_get_hv (pTHX_ const char *name, int create)
		285	{
		286	#if PERL_VERSION_ATLEAST (5,9,0)
		287	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		288	get_hv (name, create);
		289	#endif
		290	return get_hv (name, create);
		291	}
245		292
246	static AV *	293	static AV *
247	coro_clone_padlist (pTHX_ CV *cv)	294	coro_clone_padlist (pTHX_ CV *cv)
248	{	295	{
249	AV *padlist = CvPADLIST (cv);	296	AV *padlist = CvPADLIST (cv);
…		…
297		344
298	/* casting is fun. */	345	/* casting is fun. */
299	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	346	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
300	free_padlist (aTHX_ padlist);	347	free_padlist (aTHX_ padlist);
301		348
302	SvREFCNT_dec (av);
303
304	return 0;	349	return 0;
305	}	350	}
306		351
307	#define PERL_MAGIC_coro PERL_MAGIC_ext	352	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		353	#define CORO_MAGIC_type_state PERL_MAGIC_ext
308		354
309	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	355	static MGVTBL coro_cv_vtbl = {
		356	0, 0, 0, 0,
		357	coro_cv_free
		358	};
310		359
311	#define CORO_MAGIC(cv) \	360	#define CORO_MAGIC(sv,type) \
312	SvMAGIC (cv) \	361	SvMAGIC (sv) \
313	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	362	? SvMAGIC (sv)->mg_type == type \
314	? SvMAGIC (cv) \	363	? SvMAGIC (sv) \
315	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	364	: mg_find (sv, type) \
316	: 0	365	: 0
		366
		367	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		368	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
317		369
318	static struct coro *	370	static struct coro *
319	SvSTATE_ (pTHX_ SV *coro)	371	SvSTATE_ (pTHX_ SV *coro)
320	{	372	{
321	HV *stash;	373	HV *stash;
322	MAGIC *mg;	374	MAGIC *mg;
323		375
324	if (SvROK (coro))	376	if (SvROK (coro))
325	coro = SvRV (coro);	377	coro = SvRV (coro);
326		378
327	if (SvTYPE (coro) != SVt_PVHV)	379	if (expect_false (SvTYPE (coro) != SVt_PVHV))
328	croak ("Coro::State object required");	380	croak ("Coro::State object required");
329		381
330	stash = SvSTASH (coro);	382	stash = SvSTASH (coro);
331	if (stash != coro_stash && stash != coro_state_stash)	383	if (expect_false (stash != coro_stash && stash != coro_state_stash))
332	{	384	{
333	/* very slow, but rare, check */	385	/* very slow, but rare, check */
334	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	386	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
335	croak ("Coro::State object required");	387	croak ("Coro::State object required");
336	}	388	}
337		389
338	mg = CORO_MAGIC (coro);	390	mg = CORO_MAGIC_state (coro);
339	return (struct coro *)mg->mg_ptr;	391	return (struct coro *)mg->mg_ptr;
340	}	392	}
341		393
342	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	394	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
343		395
344	/* the next two functions merely cache the padlists */	396	/* the next two functions merely cache the padlists */
345	static void	397	static void
346	get_padlist (pTHX_ CV *cv)	398	get_padlist (pTHX_ CV *cv)
347	{	399	{
348	MAGIC *mg = CORO_MAGIC (cv);	400	MAGIC *mg = CORO_MAGIC_cv (cv);
349	AV *av;	401	AV *av;
350		402
351	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	403	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
352	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	404	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
353	else	405	else
354	{	406	{
355	#if CORO_PREFER_PERL_FUNCTIONS	407	#if CORO_PREFER_PERL_FUNCTIONS
356	/* this is probably cleaner, but also slower? */	408	/* this is probably cleaner, but also slower? */
…		…
365	}	417	}
366		418
367	static void	419	static void
368	put_padlist (pTHX_ CV *cv)	420	put_padlist (pTHX_ CV *cv)
369	{	421	{
370	MAGIC *mg = CORO_MAGIC (cv);	422	MAGIC *mg = CORO_MAGIC_cv (cv);
371	AV *av;	423	AV *av;
372		424
373	if (!mg)	425	if (expect_false (!mg))
374	{	426	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
375	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
376	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
377	mg->mg_virtual = &vtbl_coro;
378	mg->mg_obj = (SV *)newAV ();
379	}
380		427
381	av = (AV *)mg->mg_obj;	428	av = (AV *)mg->mg_obj;
382		429
383	if (AvFILLp (av) >= AvMAX (av))	430	if (expect_false (AvFILLp (av) >= AvMAX (av)))
384	av_extend (av, AvMAX (av) + 1);	431	av_extend (av, AvMAX (av) + 1);
385		432
386	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	433	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
387	}	434	}
388		435
389	/ load & save, init *****************************************************/	436	/ load & save, init *****************************************************/
390		437
391	static void	438	static void
392	load_perl (pTHX_ Coro__State c)	439	load_perl (pTHX_ Coro__State c)
393	{	440	{
		441	perl_slots *slot = c->slot;
		442	c->slot = 0;
		443
		444	PL_mainstack = c->mainstack;
		445
		446	GvSV (PL_defgv) = slot->defsv;
		447	GvAV (PL_defgv) = slot->defav;
		448	GvSV (PL_errgv) = slot->errsv;
		449	GvSV (irsgv) = slot->irsgv;
		450
394	#define VAR(name,type) PL_ ## name = c->name;	451	#define VAR(name,type) PL_ ## name = slot->name;
395	# include "state.h"	452	# include "state.h"
396	#undef VAR	453	#undef VAR
397
398	GvSV (PL_defgv) = c->defsv;
399	GvAV (PL_defgv) = c->defav;
400	GvSV (PL_errgv) = c->errsv;
401	GvSV (irsgv) = c->irssv_sv;
402		454
403	{	455	{
404	dSP;	456	dSP;
		457
405	CV *cv;	458	CV *cv;
406		459
407	/* now do the ugly restore mess */	460	/* now do the ugly restore mess */
408	while ((cv = (CV *)POPs))	461	while (expect_true (cv = (CV *)POPs))
409	{	462	{
410	put_padlist (aTHX_ cv); /* mark this padlist as available */	463	put_padlist (aTHX_ cv); /* mark this padlist as available */
411	CvDEPTH (cv) = PTR2IV (POPs);	464	CvDEPTH (cv) = PTR2IV (POPs);
412	CvPADLIST (cv) = (AV *)POPs;	465	CvPADLIST (cv) = (AV *)POPs;
413	}	466	}
…		…
432		485
433	XPUSHs (Nullsv);	486	XPUSHs (Nullsv);
434	/* this loop was inspired by pp_caller */	487	/* this loop was inspired by pp_caller */
435	for (;;)	488	for (;;)
436	{	489	{
437	while (cxix >= 0)	490	while (expect_true (cxix >= 0))
438	{	491	{
439	PERL_CONTEXT *cx = &ccstk[cxix--];	492	PERL_CONTEXT *cx = &ccstk[cxix--];
440		493
441	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	494	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
442	{	495	{
443	CV *cv = cx->blk_sub.cv;	496	CV *cv = cx->blk_sub.cv;
444		497
445	if (CvDEPTH (cv))	498	if (expect_true (CvDEPTH (cv)))
446	{	499	{
447	EXTEND (SP, 3);	500	EXTEND (SP, 3);
448	PUSHs ((SV *)CvPADLIST (cv));	501	PUSHs ((SV *)CvPADLIST (cv));
449	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	502	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
450	PUSHs ((SV *)cv);	503	PUSHs ((SV *)cv);
…		…
453	get_padlist (aTHX_ cv);	506	get_padlist (aTHX_ cv);
454	}	507	}
455	}	508	}
456	}	509	}
457		510
458	if (top_si->si_type == PERLSI_MAIN)	511	if (expect_true (top_si->si_type == PERLSI_MAIN))
459	break;	512	break;
460		513
461	top_si = top_si->si_prev;	514	top_si = top_si->si_prev;
462	ccstk = top_si->si_cxstack;	515	ccstk = top_si->si_cxstack;
463	cxix = top_si->si_cxix;	516	cxix = top_si->si_cxix;
464	}	517	}
465		518
466	PUTBACK;	519	PUTBACK;
467	}	520	}
468		521
		522	/* allocate some space on the context stack for our purposes */
		523	/* we manually unroll here, as usually 2 slots is enough */
		524	if (SLOT_COUNT >= 1) CXINC;
		525	if (SLOT_COUNT >= 2) CXINC;
		526	if (SLOT_COUNT >= 3) CXINC;
		527	{
		528	int i;
		529	for (i = 3; i < SLOT_COUNT; ++i)
		530	CXINC;
		531	}
		532	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		533
		534	c->mainstack = PL_mainstack;
		535
		536	{
		537	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		538
469	c->defav = GvAV (PL_defgv);	539	slot->defav = GvAV (PL_defgv);
470	c->defsv = DEFSV;	540	slot->defsv = DEFSV;
471	c->errsv = ERRSV;	541	slot->errsv = ERRSV;
472	c->irssv_sv = GvSV (irsgv);	542	slot->irsgv = GvSV (irsgv);
473		543
474	#define VAR(name,type)c->name = PL_ ## name;	544	#define VAR(name,type) slot->name = PL_ ## name;
475	# include "state.h"	545	# include "state.h"
476	#undef VAR	546	#undef VAR
		547	}
477	}	548	}
478		549
479	/*	550	/*
480	* allocate various perl stacks. This is an exact copy	551	* allocate various perl stacks. This is an exact copy
481	* of perl.c:init_stacks, except that it uses less memory	552	* of perl.c:init_stacks, except that it uses less memory
…		…
486	# define coro_init_stacks init_stacks	557	# define coro_init_stacks init_stacks
487	#else	558	#else
488	static void	559	static void
489	coro_init_stacks (pTHX)	560	coro_init_stacks (pTHX)
490	{	561	{
491	PL_curstackinfo = new_stackinfo(64, 6);	562	PL_curstackinfo = new_stackinfo(32, 8);
492	PL_curstackinfo->si_type = PERLSI_MAIN;	563	PL_curstackinfo->si_type = PERLSI_MAIN;
493	PL_curstack = PL_curstackinfo->si_stack;	564	PL_curstack = PL_curstackinfo->si_stack;
494	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	565	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
495		566
496	PL_stack_base = AvARRAY(PL_curstack);	567	PL_stack_base = AvARRAY(PL_curstack);
497	PL_stack_sp = PL_stack_base;	568	PL_stack_sp = PL_stack_base;
498	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	569	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
499		570
500	New(50,PL_tmps_stack,64,SV*);	571	New(50,PL_tmps_stack,32,SV*);
501	PL_tmps_floor = -1;	572	PL_tmps_floor = -1;
502	PL_tmps_ix = -1;	573	PL_tmps_ix = -1;
503	PL_tmps_max = 64;	574	PL_tmps_max = 32;
504		575
505	New(54,PL_markstack,16,I32);	576	New(54,PL_markstack,16,I32);
506	PL_markstack_ptr = PL_markstack;	577	PL_markstack_ptr = PL_markstack;
507	PL_markstack_max = PL_markstack + 16;	578	PL_markstack_max = PL_markstack + 16;
508		579
509	#ifdef SET_MARK_OFFSET	580	#ifdef SET_MARK_OFFSET
510	SET_MARK_OFFSET;	581	SET_MARK_OFFSET;
511	#endif	582	#endif
512		583
513	New(54,PL_scopestack,16,I32);	584	New(54,PL_scopestack,8,I32);
514	PL_scopestack_ix = 0;	585	PL_scopestack_ix = 0;
515	PL_scopestack_max = 16;	586	PL_scopestack_max = 8;
516		587
517	New(54,PL_savestack,64,ANY);	588	New(54,PL_savestack,24,ANY);
518	PL_savestack_ix = 0;	589	PL_savestack_ix = 0;
519	PL_savestack_max = 64;	590	PL_savestack_max = 24;
520		591
521	#if !PERL_VERSION_ATLEAST (5,9,0)	592	#if !PERL_VERSION_ATLEAST (5,9,0)
522	New(54,PL_retstack,4,OP*);	593	New(54,PL_retstack,4,OP*);
523	PL_retstack_ix = 0;	594	PL_retstack_ix = 0;
524	PL_retstack_max = 4;	595	PL_retstack_max = 4;
…		…
561	{	632	{
562	size_t rss = sizeof (*coro);	633	size_t rss = sizeof (*coro);
563		634
564	if (coro->mainstack)	635	if (coro->mainstack)
565	{	636	{
		637	perl_slots tmp_slot;
		638	perl_slots *slot;
		639
566	if (coro->flags & CF_RUNNING)	640	if (coro->flags & CF_RUNNING)
567	{	641	{
		642	slot = &tmp_slot;
		643
568	#define VAR(name,type)coro->name = PL_ ## name;	644	#define VAR(name,type) slot->name = PL_ ## name;
569	# include "state.h"	645	# include "state.h"
570	#undef VAR	646	#undef VAR
571	}	647	}
		648	else
		649	slot = coro->slot;
572		650
573	rss += sizeof (coro->curstackinfo);	651	rss += sizeof (slot->curstackinfo);
574	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
575	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	652	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
576	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	653	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
577	rss += coro->tmps_max * sizeof (SV *);	654	rss += slot->tmps_max * sizeof (SV *);
578	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	655	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
579	rss += coro->scopestack_max * sizeof (I32);	656	rss += slot->scopestack_max * sizeof (I32);
580	rss += coro->savestack_max * sizeof (ANY);	657	rss += slot->savestack_max * sizeof (ANY);
581		658
582	#if !PERL_VERSION_ATLEAST (5,9,0)	659	#if !PERL_VERSION_ATLEAST (5,9,0)
583	rss += coro->retstack_max * sizeof (OP *);	660	rss += slot->retstack_max * sizeof (OP *);
584	#endif	661	#endif
585	}	662	}
586		663
587	return rss;	664	return rss;
588	}	665	}
589		666
590	/ coroutine stack handling **********************************************/	667	/ coroutine stack handling **********************************************/
		668
		669	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		670	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		671
		672	/*
		673	* This overrides the default magic get method of %SIG elements.
		674	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		675	* and instead of tryign to save and restore the hash elements, we just provide
		676	* readback here.
		677	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		678	* not expecting this to actually change the hook. This is a potential problem
		679	* when a schedule happens then, but we ignore this.
		680	*/
		681	static int
		682	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		683	{
		684	const char *s = MgPV_nolen_const (mg);
		685
		686	if (*s == '_')
		687	{
		688	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		689	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		690	}
		691
		692	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		693	}
		694
		695	static int
		696	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		697	{
		698	const char *s = MgPV_nolen_const (mg);
		699
		700	if (*s == '_')
		701	{
		702	SV **svp = 0;
		703
		704	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		705	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		706
		707	if (svp)
		708	{
		709	SV old = svp;
		710	*svp = newSVsv (sv);
		711	SvREFCNT_dec (old);
		712	return;
		713	}
		714	}
		715
		716	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		717	}
591		718
592	static void	719	static void
593	coro_setup (pTHX_ struct coro *coro)	720	coro_setup (pTHX_ struct coro *coro)
594	{	721	{
595	/*	722	/*
…		…
600	PL_runops = RUNOPS_DEFAULT;	727	PL_runops = RUNOPS_DEFAULT;
601	PL_curcop = &PL_compiling;	728	PL_curcop = &PL_compiling;
602	PL_in_eval = EVAL_NULL;	729	PL_in_eval = EVAL_NULL;
603	PL_comppad = 0;	730	PL_comppad = 0;
604	PL_curpm = 0;	731	PL_curpm = 0;
		732	PL_curpad = 0;
605	PL_localizing = 0;	733	PL_localizing = 0;
606	PL_dirty = 0;	734	PL_dirty = 0;
607	PL_restartop = 0;	735	PL_restartop = 0;
		736
		737	/* recreate the die/warn hooks */
		738	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		739	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
608		740
609	GvSV (PL_defgv) = NEWSV (0, 0);	741	GvSV (PL_defgv) = newSV (0);
610	GvAV (PL_defgv) = coro->args; coro->args = 0;	742	GvAV (PL_defgv) = coro->args; coro->args = 0;
611	GvSV (PL_errgv) = NEWSV (0, 0);	743	GvSV (PL_errgv) = newSV (0);
612	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	744	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
613	PL_rs = newSVsv (GvSV (irsgv));	745	PL_rs = newSVsv (GvSV (irsgv));
614	PL_defoutgv = SvREFCNT_inc (stdoutgv);	746	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
615		747
616	{	748	{
617	dSP;	749	dSP;
618	LOGOP myop;	750	LOGOP myop;
619		751
620	Zero (&myop, 1, LOGOP);	752	Zero (&myop, 1, LOGOP);
621	myop.op_next = Nullop;	753	myop.op_next = Nullop;
622	myop.op_flags = OPf_WANT_VOID;	754	myop.op_flags = OPf_WANT_VOID;
623		755
624	PUSHMARK (SP);	756	PUSHMARK (SP);
625	XPUSHs (av_shift (GvAV (PL_defgv)));	757	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
626	PUTBACK;	758	PUTBACK;
627	PL_op = (OP *)&myop;	759	PL_op = (OP *)&myop;
628	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	760	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
629	SPAGAIN;	761	SPAGAIN;
630	}	762	}
631		763
632	ENTER; /* necessary e.g. for dounwind */	764	/* this newly created coroutine might be run on an existing cctx which most
		765	* likely was suspended in set_stacklevel, called from entersub.
		766	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		767	* so we ENTER here for symmetry
		768	*/
		769	ENTER;
633	}	770	}
634		771
635	static void	772	static void
636	coro_destroy (pTHX_ struct coro *coro)	773	coro_destroy (pTHX_ struct coro *coro)
637	{	774	{
…		…
657	SvREFCNT_dec (GvSV (PL_errgv));	794	SvREFCNT_dec (GvSV (PL_errgv));
658	SvREFCNT_dec (PL_defoutgv);	795	SvREFCNT_dec (PL_defoutgv);
659	SvREFCNT_dec (PL_rs);	796	SvREFCNT_dec (PL_rs);
660	SvREFCNT_dec (GvSV (irsgv));	797	SvREFCNT_dec (GvSV (irsgv));
661		798
		799	SvREFCNT_dec (PL_diehook);
		800	SvREFCNT_dec (PL_warnhook);
		801
662	SvREFCNT_dec (coro->saved_deffh);	802	SvREFCNT_dec (coro->saved_deffh);
663	//SvREFCNT_dec (coro->throw);	803	SvREFCNT_dec (coro->throw);
664		804
665	coro_destroy_stacks (aTHX);	805	coro_destroy_stacks (aTHX);
666	}	806	}
667		807
668	static void	808	static void
669	free_coro_mortal (pTHX)	809	free_coro_mortal (pTHX)
670	{	810	{
671	if (coro_mortal)	811	if (expect_true (coro_mortal))
672	{	812	{
673	SvREFCNT_dec (coro_mortal);	813	SvREFCNT_dec (coro_mortal);
674	coro_mortal = 0;	814	coro_mortal = 0;
675	}	815	}
676	}	816	}
…		…
705	bot = PL_stack_base + cx->blk_oldsp + 1;	845	bot = PL_stack_base + cx->blk_oldsp + 1;
706	top = cx->blk_gimme == G_ARRAY ? SP + 1	846	top = cx->blk_gimme == G_ARRAY ? SP + 1
707	: cx->blk_gimme == G_SCALAR ? bot + 1	847	: cx->blk_gimme == G_SCALAR ? bot + 1
708	: bot;	848	: bot;
709		849
		850	av_extend (av, top - bot);
710	while (bot < top)	851	while (bot < top)
711	av_push (av, SvREFCNT_inc (*bot++));	852	av_push (av, SvREFCNT_inc (*bot++));
712		853
713	PL_runops = RUNOPS_DEFAULT;	854	PL_runops = RUNOPS_DEFAULT;
714	ENTER;	855	ENTER;
…		…
800		941
801	/* inject a fake call to Coro::State::_cctx_init into the execution */	942	/* inject a fake call to Coro::State::_cctx_init into the execution */
802	/* _cctx_init should be careful, as it could be called at almost any time */	943	/* _cctx_init should be careful, as it could be called at almost any time */
803	/* during execution of a perl program */	944	/* during execution of a perl program */
804	static void NOINLINE	945	static void NOINLINE
805	prepare_cctx (pTHX_ coro_cctx *cctx)	946	cctx_prepare (pTHX_ coro_cctx *cctx)
806	{	947	{
807	dSP;	948	dSP;
808	LOGOP myop;	949	LOGOP myop;
809		950
810	PL_top_env = &PL_start_env;	951	PL_top_env = &PL_start_env;
…		…
828		969
829	/*	970	/*
830	* this is a _very_ stripped down perl interpreter ;)	971	* this is a _very_ stripped down perl interpreter ;)
831	*/	972	*/
832	static void	973	static void
833	coro_run (void *arg)	974	cctx_run (void *arg)
834	{	975	{
835	dTHX;	976	dTHX;
836		977
837	/* coro_run is the alternative tail of transfer(), so unlock here. */	978	/* cctx_run is the alternative tail of transfer(), so unlock here. */
838	UNLOCK;	979	UNLOCK;
839		980
840	/* we now skip the entersub that lead to transfer() */	981	/* we now skip the entersub that lead to transfer() */
841	PL_op = PL_op->op_next;	982	PL_op = PL_op->op_next;
842		983
843	/* inject a fake subroutine call to cctx_init */	984	/* inject a fake subroutine call to cctx_init */
844	prepare_cctx (aTHX_ (coro_cctx *)arg);	985	cctx_prepare (aTHX_ (coro_cctx *)arg);
845		986
846	/* somebody or something will hit me for both perl_run and PL_restartop */	987	/* somebody or something will hit me for both perl_run and PL_restartop */
847	PL_restartop = PL_op;	988	PL_restartop = PL_op;
848	perl_run (PL_curinterp);	989	perl_run (PL_curinterp);
849		990
…		…
868	++cctx_count;	1009	++cctx_count;
869		1010
870	Newz (0, cctx, 1, coro_cctx);	1011	Newz (0, cctx, 1, coro_cctx);
871		1012
872	#if HAVE_MMAP	1013	#if HAVE_MMAP
873
874	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1014	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
875	/* mmap supposedly does allocate-on-write for us */	1015	/* mmap supposedly does allocate-on-write for us */
876	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1016	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
877		1017
878	if (cctx->sptr != (void *)-1)	1018	if (cctx->sptr != (void *)-1)
…		…
899	stack_start = cctx->sptr;	1039	stack_start = cctx->sptr;
900	stack_size = cctx->ssize;	1040	stack_size = cctx->ssize;
901	}	1041	}
902		1042
903	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1043	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
904	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1044	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
905		1045
906	return cctx;	1046	return cctx;
907	}	1047	}
908		1048
909	static void	1049	static void
…		…
926	Safefree (cctx->sptr);	1066	Safefree (cctx->sptr);
927		1067
928	Safefree (cctx);	1068	Safefree (cctx);
929	}	1069	}
930		1070
		1071	/* wether this cctx should be destructed */
		1072	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1073
931	static coro_cctx *	1074	static coro_cctx *
932	cctx_get (pTHX)	1075	cctx_get (pTHX)
933	{	1076	{
934	while (cctx_first)	1077	while (expect_true (cctx_first))
935	{	1078	{
936	coro_cctx *cctx = cctx_first;	1079	coro_cctx *cctx = cctx_first;
937	cctx_first = cctx->next;	1080	cctx_first = cctx->next;
938	--cctx_idle;	1081	--cctx_idle;
939		1082
940	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1083	if (expect_true (!CCTX_EXPIRED (cctx)))
941	return cctx;	1084	return cctx;
942		1085
943	cctx_destroy (cctx);	1086	cctx_destroy (cctx);
944	}	1087	}
945		1088
…		…
948		1091
949	static void	1092	static void
950	cctx_put (coro_cctx *cctx)	1093	cctx_put (coro_cctx *cctx)
951	{	1094	{
952	/* free another cctx if overlimit */	1095	/* free another cctx if overlimit */
953	if (cctx_idle >= MAX_IDLE_CCTX)	1096	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
954	{	1097	{
955	coro_cctx *first = cctx_first;	1098	coro_cctx *first = cctx_first;
956	cctx_first = first->next;	1099	cctx_first = first->next;
957	--cctx_idle;	1100	--cctx_idle;
958		1101
…		…
964	cctx_first = cctx;	1107	cctx_first = cctx;
965	}	1108	}
966		1109
967	/ coroutine switching ***************************************************/	1110	/ coroutine switching ***************************************************/
968		1111
969	static void NOINLINE	1112	static void
970	transfer_check (pTHX_ struct coro prev, struct coro next)	1113	transfer_check (pTHX_ struct coro prev, struct coro next)
971	{	1114	{
972	if (prev != next)	1115	if (expect_true (prev != next))
973	{	1116	{
974	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1117	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
975	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1118	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
976		1119
977	if (next->flags & CF_RUNNING)	1120	if (expect_false (next->flags & CF_RUNNING))
978	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1121	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
979		1122
980	if (next->flags & CF_DESTROYED)	1123	if (expect_false (next->flags & CF_DESTROYED))
981	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1124	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
982		1125
		1126	if (
		1127	#if PERL_VERSION_ATLEAST (5,9,0)
		1128	expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
		1129	#else
983	if (PL_lex_state != LEX_NOTPARSING)	1130	expect_false (PL_lex_state != LEX_NOTPARSING)
		1131	#endif
		1132	)
984	croak ("Coro::State::transfer called while parsing, but this is not supported");	1133	croak ("Coro::State::transfer called while parsing, but this is not supported");
985	}	1134	}
986	}	1135	}
987		1136
988	/* always use the TRANSFER macro */	1137	/* always use the TRANSFER macro */
989	static void NOINLINE	1138	static void NOINLINE
990	transfer (pTHX_ struct coro prev, struct coro next)	1139	transfer (pTHX_ struct coro prev, struct coro next)
991	{	1140	{
992	dSTACKLEVEL;	1141	dSTACKLEVEL;
		1142	static volatile int has_throw;
993		1143
994	/* sometimes transfer is only called to set idle_sp */	1144	/* sometimes transfer is only called to set idle_sp */
995	if (!next)	1145	if (expect_false (!next))
996	{	1146	{
997	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1147	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
998	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1148	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
999	}	1149	}
1000	else if (prev != next)	1150	else if (expect_true (prev != next))
1001	{	1151	{
1002	coro_cctx *prev__cctx;	1152	coro_cctx *prev__cctx;
1003		1153
1004	if (prev->flags & CF_NEW)	1154	if (expect_false (prev->flags & CF_NEW))
1005	{	1155	{
1006	/* create a new empty context */	1156	/* create a new empty context */
1007	Newz (0, prev->cctx, 1, coro_cctx);	1157	Newz (0, prev->cctx, 1, coro_cctx);
1008	prev->flags &= ~CF_NEW;	1158	prev->flags &= ~CF_NEW;
1009	prev->flags \|= CF_RUNNING;	1159	prev->flags \|= CF_RUNNING;
…		…
1012	prev->flags &= ~CF_RUNNING;	1162	prev->flags &= ~CF_RUNNING;
1013	next->flags \|= CF_RUNNING;	1163	next->flags \|= CF_RUNNING;
1014		1164
1015	LOCK;	1165	LOCK;
1016		1166
		1167	/* first get rid of the old state */
		1168	save_perl (aTHX_ prev);
		1169
1017	if (next->flags & CF_NEW)	1170	if (expect_false (next->flags & CF_NEW))
1018	{	1171	{
1019	/* need to start coroutine */	1172	/* need to start coroutine */
1020	next->flags &= ~CF_NEW;	1173	next->flags &= ~CF_NEW;
1021	/* first get rid of the old state */
1022	save_perl (aTHX_ prev);
1023	/* setup coroutine call */	1174	/* setup coroutine call */
1024	coro_setup (aTHX_ next);	1175	coro_setup (aTHX_ next);
1025	}	1176	}
1026	else	1177	else
1027	{
1028	/* coroutine already started */
1029	save_perl (aTHX_ prev);
1030	load_perl (aTHX_ next);	1178	load_perl (aTHX_ next);
1031	}
1032		1179
1033	prev__cctx = prev->cctx;	1180	prev__cctx = prev->cctx;
1034		1181
1035	/* possibly "free" the cctx */	1182	/* possibly "free" the cctx */
1036	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1183	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1037	{	1184	{
1038	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1185	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1039	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1186	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1040		1187
1041	prev->cctx = 0;	1188	prev->cctx = 0;
1042		1189
		1190	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1191	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1192	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1193	if (!next->cctx)
		1194	next->cctx = cctx_get (aTHX);
		1195
1043	cctx_put (prev__cctx);	1196	cctx_put (prev__cctx);
1044	}	1197	}
1045		1198
1046	++next->usecount;	1199	++next->usecount;
1047		1200
1048	if (!next->cctx)	1201	if (expect_true (!next->cctx))
1049	next->cctx = cctx_get (aTHX);	1202	next->cctx = cctx_get (aTHX);
1050		1203
		1204	has_throw = !!next->throw;
		1205
1051	if (prev__cctx != next->cctx)	1206	if (expect_false (prev__cctx != next->cctx))
1052	{	1207	{
1053	prev__cctx->top_env = PL_top_env;	1208	prev__cctx->top_env = PL_top_env;
1054	PL_top_env = next->cctx->top_env;	1209	PL_top_env = next->cctx->top_env;
1055	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1210	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1056	}	1211	}
1057		1212
1058	free_coro_mortal (aTHX);	1213	free_coro_mortal (aTHX);
1059	UNLOCK;	1214	UNLOCK;
		1215
		1216	if (expect_false (has_throw))
		1217	{
		1218	struct coro *coro = SvSTATE (coro_current);
		1219
		1220	if (coro->throw)
		1221	{
		1222	SV *exception = coro->throw;
		1223	coro->throw = 0;
		1224	sv_setsv (ERRSV, exception);
		1225	croak (0);
		1226	}
		1227	}
1060	}	1228	}
1061	}	1229	}
1062		1230
1063	struct transfer_args	1231	struct transfer_args
1064	{	1232	{
…		…
1099	save_perl (aTHX_ &temp);	1267	save_perl (aTHX_ &temp);
1100	load_perl (aTHX_ coro);	1268	load_perl (aTHX_ coro);
1101		1269
1102	coro_destroy (aTHX_ coro);	1270	coro_destroy (aTHX_ coro);
1103		1271
1104	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1272	load_perl (aTHX_ &temp);
1105		1273
1106	coro->mainstack = 0;	1274	coro->slot = 0;
1107	}	1275	}
1108		1276
1109	cctx_destroy (coro->cctx);	1277	cctx_destroy (coro->cctx);
1110	SvREFCNT_dec (coro->args);	1278	SvREFCNT_dec (coro->args);
1111		1279
…		…
1179	{	1347	{
1180	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1348	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1181	}	1349	}
1182		1350
1183	static SV *	1351	static SV *
1184	coro_deq (pTHX_ int min_prio)	1352	coro_deq (pTHX)
1185	{	1353	{
1186	int prio = PRIO_MAX - PRIO_MIN;	1354	int prio;
1187		1355
1188	min_prio -= PRIO_MIN;
1189	if (min_prio < 0)
1190	min_prio = 0;
1191
1192	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1356	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1193	if (AvFILLp (coro_ready [prio]) >= 0)	1357	if (AvFILLp (coro_ready [prio]) >= 0)
1194	return av_shift (coro_ready [prio]);	1358	return av_shift (coro_ready [prio]);
1195		1359
1196	return 0;	1360	return 0;
1197	}	1361	}
…		…
1233	SV prev_sv, next_sv;	1397	SV prev_sv, next_sv;
1234		1398
1235	for (;;)	1399	for (;;)
1236	{	1400	{
1237	LOCK;	1401	LOCK;
1238	next_sv = coro_deq (aTHX_ PRIO_MIN);	1402	next_sv = coro_deq (aTHX);
1239		1403
1240	/* nothing to schedule: call the idle handler */	1404	/* nothing to schedule: call the idle handler */
1241	if (!next_sv)	1405	if (expect_false (!next_sv))
1242	{	1406	{
1243	dSP;	1407	dSP;
1244	UNLOCK;	1408	UNLOCK;
1245		1409
1246	ENTER;	1410	ENTER;
1247	SAVETMPS;	1411	SAVETMPS;
1248		1412
1249	PUSHMARK (SP);	1413	PUSHMARK (SP);
1250	PUTBACK;	1414	PUTBACK;
1251	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1415	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1416	SPAGAIN;
1252		1417
1253	FREETMPS;	1418	FREETMPS;
1254	LEAVE;	1419	LEAVE;
1255	continue;	1420	continue;
1256	}	1421	}
1257		1422
1258	ta->next = SvSTATE (next_sv);	1423	ta->next = SvSTATE (next_sv);
1259		1424
1260	/* cannot transfer to destroyed coros, skip and look for next */	1425	/* cannot transfer to destroyed coros, skip and look for next */
1261	if (ta->next->flags & CF_DESTROYED)	1426	if (expect_false (ta->next->flags & CF_DESTROYED))
1262	{	1427	{
1263	UNLOCK;	1428	UNLOCK;
1264	SvREFCNT_dec (next_sv);	1429	SvREFCNT_dec (next_sv);
1265	/* coro_nready is already taken care of by destroy */	1430	/* coro_nready is already taken care of by destroy */
1266	continue;	1431	continue;
…		…
1322	dTHX;	1487	dTHX;
1323	struct transfer_args ta;	1488	struct transfer_args ta;
1324		1489
1325	prepare_cede (aTHX_ &ta);	1490	prepare_cede (aTHX_ &ta);
1326		1491
1327	if (ta.prev != ta.next)	1492	if (expect_true (ta.prev != ta.next))
1328	{	1493	{
1329	TRANSFER (ta);	1494	TRANSFER (ta);
1330	return 1;	1495	return 1;
1331	}	1496	}
1332	else	1497	else
…		…
1368	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1533	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1369		1534
1370	if (coro->flags & CF_RUNNING)	1535	if (coro->flags & CF_RUNNING)
1371	PL_runops = RUNOPS_DEFAULT;	1536	PL_runops = RUNOPS_DEFAULT;
1372	else	1537	else
1373	coro->runops = RUNOPS_DEFAULT;	1538	coro->slot->runops = RUNOPS_DEFAULT;
1374	}	1539	}
1375	}	1540	}
1376		1541
1377	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1542	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1378		1543
…		…
1385	#endif	1550	#endif
1386	BOOT_PAGESIZE;	1551	BOOT_PAGESIZE;
1387		1552
1388	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1553	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1389	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1554	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1555
		1556	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1557	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1558	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1559	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1560
		1561	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1562	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1563	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1390		1564
1391	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1565	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1392		1566
1393	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1567	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1394	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1568	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1400		1574
1401	while (main_top_env->je_prev)	1575	while (main_top_env->je_prev)
1402	main_top_env = main_top_env->je_prev;	1576	main_top_env = main_top_env->je_prev;
1403		1577
1404	coroapi.ver = CORO_API_VERSION;	1578	coroapi.ver = CORO_API_VERSION;
		1579	coroapi.rev = CORO_API_REVISION;
1405	coroapi.transfer = api_transfer;	1580	coroapi.transfer = api_transfer;
1406		1581
1407	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1582	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1408	}	1583	}
1409		1584
1410	SV *	1585	SV *
1411	new (char *klass, ...)	1586	new (char *klass, ...)
1412	CODE:	1587	CODE:
1413	{	1588	{
1414	struct coro *coro;	1589	struct coro *coro;
		1590	MAGIC *mg;
1415	HV *hv;	1591	HV *hv;
1416	int i;	1592	int i;
1417		1593
1418	Newz (0, coro, 1, struct coro);	1594	Newz (0, coro, 1, struct coro);
1419	coro->args = newAV ();	1595	coro->args = newAV ();
…		…
1422	if (coro_first) coro_first->prev = coro;	1598	if (coro_first) coro_first->prev = coro;
1423	coro->next = coro_first;	1599	coro->next = coro_first;
1424	coro_first = coro;	1600	coro_first = coro;
1425		1601
1426	coro->hv = hv = newHV ();	1602	coro->hv = hv = newHV ();
1427	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1603	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1604	mg->mg_flags \|= MGf_DUP;
1428	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1605	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1429		1606
		1607	av_extend (coro->args, items - 1);
1430	for (i = 1; i < items; i++)	1608	for (i = 1; i < items; i++)
1431	av_push (coro->args, newSVsv (ST (i)));	1609	av_push (coro->args, newSVsv (ST (i)));
1432	}	1610	}
1433	OUTPUT:	1611	OUTPUT:
1434	RETVAL	1612	RETVAL
…		…
1445	Coro::cede_notself = 4	1623	Coro::cede_notself = 4
1446	CODE:	1624	CODE:
1447	{	1625	{
1448	struct transfer_args ta;	1626	struct transfer_args ta;
1449		1627
		1628	PUTBACK;
1450	switch (ix)	1629	switch (ix)
1451	{	1630	{
1452	case 0:	1631	case 0:
1453	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1632	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1454	ta.next = 0;	1633	ta.next = 0;
…		…
1473	if (!prepare_cede_notself (aTHX_ &ta))	1652	if (!prepare_cede_notself (aTHX_ &ta))
1474	XSRETURN_EMPTY;	1653	XSRETURN_EMPTY;
1475		1654
1476	break;	1655	break;
1477	}	1656	}
		1657	SPAGAIN;
1478		1658
1479	BARRIER;	1659	BARRIER;
		1660	PUTBACK;
1480	TRANSFER (ta);	1661	TRANSFER (ta);
1481		1662	SPAGAIN; /* might be the sp of a different coroutine now */
1482	if (GIMME_V != G_VOID && ta.next != ta.prev)	1663	/* be extra careful not to ever do anything after TRANSFER */
1483	XSRETURN_YES;
1484	}	1664	}
1485		1665
1486	bool	1666	bool
1487	_destroy (SV *coro_sv)	1667	_destroy (SV *coro_sv)
1488	CODE:	1668	CODE:
…		…
1537	CODE:	1717	CODE:
1538	{	1718	{
1539	if (coro->mainstack)	1719	if (coro->mainstack)
1540	{	1720	{
1541	struct coro temp;	1721	struct coro temp;
1542	Zero (&temp, 1, struct coro);
1543		1722
1544	if (!(coro->flags & CF_RUNNING))	1723	if (!(coro->flags & CF_RUNNING))
1545	{	1724	{
		1725	PUTBACK;
1546	save_perl (aTHX_ &temp);	1726	save_perl (aTHX_ &temp);
1547	load_perl (aTHX_ coro);	1727	load_perl (aTHX_ coro);
1548	}	1728	}
1549		1729
1550	{	1730	{
1551	dSP;	1731	dSP;
1552	ENTER;	1732	ENTER;
1553	SAVETMPS;	1733	SAVETMPS;
		1734	PUTBACK;
		1735	PUSHSTACK;
1554	PUSHMARK (SP);	1736	PUSHMARK (SP);
1555	PUTBACK;	1737
1556	if (ix)	1738	if (ix)
1557	eval_sv (coderef, 0);	1739	eval_sv (coderef, 0);
1558	else	1740	else
1559	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1741	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1742
		1743	POPSTACK;
1560	SPAGAIN;	1744	SPAGAIN;
1561	FREETMPS;	1745	FREETMPS;
1562	LEAVE;	1746	LEAVE;
1563	PUTBACK;	1747	PUTBACK;
1564	}	1748	}
1565		1749
1566	if (!(coro->flags & CF_RUNNING))	1750	if (!(coro->flags & CF_RUNNING))
1567	{	1751	{
1568	save_perl (aTHX_ coro);	1752	save_perl (aTHX_ coro);
1569	load_perl (aTHX_ &temp);	1753	load_perl (aTHX_ &temp);
		1754	SPAGAIN;
1570	}	1755	}
1571	}	1756	}
1572	}	1757	}
1573		1758
1574	SV *	1759	SV *
…		…
1622		1807
1623	BOOT:	1808	BOOT:
1624	{	1809	{
1625	int i;	1810	int i;
1626		1811
1627	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1812	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1628	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1813	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1629	av_async_pool = get_av ("Coro::async_pool", TRUE);	1814	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1630		1815
1631	coro_current = get_sv ("Coro::current", FALSE);	1816	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1632	SvREADONLY_on (coro_current);	1817	SvREADONLY_on (coro_current);
1633		1818
1634	coro_stash = gv_stashpv ("Coro", TRUE);	1819	coro_stash = gv_stashpv ("Coro", TRUE);
1635		1820
1636	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1821	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1637	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1822	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1638	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1823	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1639	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1824	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1642		1827
1643	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1828	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1644	coro_ready[i] = newAV ();	1829	coro_ready[i] = newAV ();
1645		1830
1646	{	1831	{
1647	SV *sv = perl_get_sv("Coro::API", 1);	1832	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1833	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1648		1834
1649	coroapi.schedule = api_schedule;	1835	coroapi.schedule = api_schedule;
1650	coroapi.cede = api_cede;	1836	coroapi.cede = api_cede;
1651	coroapi.cede_notself = api_cede_notself;	1837	coroapi.cede_notself = api_cede_notself;
1652	coroapi.ready = api_ready;	1838	coroapi.ready = api_ready;
…		…
1703	CODE:	1889	CODE:
1704	RETVAL = coro_nready;	1890	RETVAL = coro_nready;
1705	OUTPUT:	1891	OUTPUT:
1706	RETVAL	1892	RETVAL
1707		1893
		1894	void
		1895	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1896	PROTOTYPE: $;$
		1897	CODE:
		1898	SvREFCNT_dec (self->throw);
		1899	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1900
1708	# for async_pool speedup	1901	# for async_pool speedup
1709	void	1902	void
1710	_pool_1 (SV *cb)	1903	_pool_1 (SV *cb)
1711	CODE:	1904	CODE:
1712	{	1905	{
…		…
1716	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1909	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1717	AV *invoke_av;	1910	AV *invoke_av;
1718	int i, len;	1911	int i, len;
1719		1912
1720	if (!invoke)	1913	if (!invoke)
		1914	{
		1915	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1721	croak ("\3terminate\2\n");	1916	croak ("\3async_pool terminate\2\n");
		1917	}
1722		1918
1723	SvREFCNT_dec (coro->saved_deffh);	1919	SvREFCNT_dec (coro->saved_deffh);
1724	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1920	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1725		1921
1726	hv_store (hv, "desc", sizeof ("desc") - 1,	1922	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1752	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	1948	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1753	coro->saved_deffh = 0;	1949	coro->saved_deffh = 0;
1754		1950
1755	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1951	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1756	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1952	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1953	{
		1954	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1757	croak ("\3terminate\2\n");	1955	croak ("\3async_pool terminate\2\n");
		1956	}
1758		1957
1759	av_clear (GvAV (PL_defgv));	1958	av_clear (GvAV (PL_defgv));
1760	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1959	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1761	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1960	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1762		1961

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Comparing Coro/Coro/State.xs (file contents): Revision 1.190 by root, Fri Oct 5 20:39:39 2007 UTC vs. Revision 1.222 by root, Sun Jan 20 10:22:07 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.190 by root, Fri Oct 5 20:39:39 2007 UTC vs.
Revision 1.222 by root, Sun Jan 20 10:22:07 2008 UTC