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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.180 by root, Wed Oct 3 17:12:20 2007 UTC vs.
Revision 1.226 by root, Fri Apr 4 20:07:35 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15	#include <inttypes.h> /* portable stdint.h */
14		16
15	#ifdef HAVE_MMAP	17	#ifdef HAVE_MMAP
16	# include <unistd.h>	18	# include <unistd.h>
17	# include <sys/mman.h>	19	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	20	# ifndef MAP_ANONYMOUS
70	# ifndef IS_PADCONST	72	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	73	# define IS_PADCONST(v) 0
72	# endif	74	# endif
73	#endif	75	#endif
74		76
		77	/* 5.8.8 */
		78	#ifndef GV_NOTQUAL
		79	# define GV_NOTQUAL 0
		80	#endif
		81	#ifndef newSV
		82	# define newSV(l) NEWSV(0,l)
		83	#endif
		84
		85	/* 5.11 */
		86	#ifndef CxHASARGS
		87	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		88	#endif
		89
75	/* 5.8.7 */	90	/* 5.8.7 */
76	#ifndef SvRV_set	91	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	92	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	93	#endif
79		94
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	113	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		114
100	#if __GNUC__ >= 3	115	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	116	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	117	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		118	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	119	#else
104	# define attribute(x)	120	# define attribute(x)
105	# define BARRIER	121	# define BARRIER
		122	# define expect(expr,value) (expr)
106	#endif	123	#endif
		124
		125	#define expect_false(expr) expect ((expr) != 0, 0)
		126	#define expect_true(expr) expect ((expr) != 0, 1)
107		127
108	#define NOINLINE attribute ((noinline))	128	#define NOINLINE attribute ((noinline))
109		129
110	#include "CoroAPI.h"	130	#include "CoroAPI.h"
111		131
…		…
130	static size_t coro_stacksize = CORO_STACKSIZE;	150	static size_t coro_stacksize = CORO_STACKSIZE;
131	static struct CoroAPI coroapi;	151	static struct CoroAPI coroapi;
132	static AV main_mainstack; / used to differentiate between $main and others */	152	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	153	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	154	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	155	static volatile SV coro_mortal; / will be freed after next transfer */
136		156
137	static GV irsgv; / $/ */	157	static GV irsgv; / $/ */
		158	static GV stdoutgv; / STDOUT /
		159	static SV *rv_diehook;
		160	static SV *rv_warnhook;
		161	static HV hv_sig; / %SIG */
138		162
139	/* async_pool helper stuff */	163	/* async_pool helper stuff */
140	static SV *sv_pool_rss;	164	static SV *sv_pool_rss;
141	static SV *sv_pool_size;	165	static SV *sv_pool_size;
142	static AV *av_async_pool;	166	static AV *av_async_pool;
…		…
178	CF_READY = 0x0002, /* coroutine is ready */	202	CF_READY = 0x0002, /* coroutine is ready */
179	CF_NEW = 0x0004, /* has never been switched to */	203	CF_NEW = 0x0004, /* has never been switched to */
180	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	204	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
181	};	205	};
182		206
		207	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		208	typedef struct {
		209	SV *defsv;
		210	AV *defav;
		211	SV *errsv;
		212	SV *irsgv;
		213	#define VAR(name,type) type name;
		214	# include "state.h"
		215	#undef VAR
		216	} perl_slots;
		217
		218	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		219
183	/* this is a structure representing a perl-level coroutine */	220	/* this is a structure representing a perl-level coroutine */
184	struct coro {	221	struct coro {
185	/* the c coroutine allocated to this perl coroutine, if any */	222	/* the c coroutine allocated to this perl coroutine, if any */
186	coro_cctx *cctx;	223	coro_cctx *cctx;
187		224
		225	/* process data */
		226	AV *mainstack;
		227	perl_slots slot; / basically the saved sp */
		228
188	/* data associated with this coroutine (initial args) */	229	AV args; / data associated with this coroutine (initial args) */
189	AV *args;	230	int refcnt; /* coroutines are refcounted, yes */
190	int refcnt;
191	int flags; /* CF_ flags */	231	int flags; /* CF_ flags */
192		232	HV hv; / the perl hash associated with this coro, if any */
193	/* optionally saved, might be zero */
194	AV defav; / @_ */
195	SV defsv; / $_ */
196	SV errsv; / $@ */
197	IO deffh; / default filehandle */
198	SV irssv; / $/ */
199	SV irssv_sv; / real $/ cache */
200
201	#define VAR(name,type) type name;
202	# include "state.h"
203	#undef VAR
204		233
205	/* statistics */	234	/* statistics */
206	int usecount; /* number of switches to this coro */	235	int usecount; /* number of transfers to this coro */
207		236
208	/* coro process data */	237	/* coro process data */
209	int prio;	238	int prio;
		239	SV throw; / exception to be thrown */
		240
		241	/* async_pool */
		242	SV *saved_deffh;
210		243
211	/* linked list */	244	/* linked list */
212	struct coro next, prev;	245	struct coro next, prev;
213	HV hv; / the perl hash associated with this coro, if any */
214	};	246	};
215		247
216	typedef struct coro *Coro__State;	248	typedef struct coro *Coro__State;
217	typedef struct coro *Coro__State_or_hashref;	249	typedef struct coro *Coro__State_or_hashref;
218		250
…		…
230	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	262	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
231	static int coro_nready;	263	static int coro_nready;
232	static struct coro *coro_first;	264	static struct coro *coro_first;
233		265
234	/ lowlevel stuff ********************************************************/	266	/ lowlevel stuff ********************************************************/
		267
		268	static SV *
		269	coro_get_sv (pTHX_ const char *name, int create)
		270	{
		271	#if PERL_VERSION_ATLEAST (5,9,0)
		272	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		273	get_sv (name, create);
		274	#endif
		275	return get_sv (name, create);
		276	}
		277
		278	static AV *
		279	coro_get_av (pTHX_ const char *name, int create)
		280	{
		281	#if PERL_VERSION_ATLEAST (5,9,0)
		282	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		283	get_av (name, create);
		284	#endif
		285	return get_av (name, create);
		286	}
		287
		288	static HV *
		289	coro_get_hv (pTHX_ const char *name, int create)
		290	{
		291	#if PERL_VERSION_ATLEAST (5,9,0)
		292	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		293	get_hv (name, create);
		294	#endif
		295	return get_hv (name, create);
		296	}
235		297
236	static AV *	298	static AV *
237	coro_clone_padlist (pTHX_ CV *cv)	299	coro_clone_padlist (pTHX_ CV *cv)
238	{	300	{
239	AV *padlist = CvPADLIST (cv);	301	AV *padlist = CvPADLIST (cv);
…		…
287		349
288	/* casting is fun. */	350	/* casting is fun. */
289	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	351	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
290	free_padlist (aTHX_ padlist);	352	free_padlist (aTHX_ padlist);
291		353
292	SvREFCNT_dec (av);
293
294	return 0;	354	return 0;
295	}	355	}
296		356
297	#define PERL_MAGIC_coro PERL_MAGIC_ext	357	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		358	#define CORO_MAGIC_type_state PERL_MAGIC_ext
298		359
299	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	360	static MGVTBL coro_cv_vtbl = {
		361	0, 0, 0, 0,
		362	coro_cv_free
		363	};
300		364
301	#define CORO_MAGIC(cv) \	365	#define CORO_MAGIC(sv,type) \
302	SvMAGIC (cv) \	366	SvMAGIC (sv) \
303	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	367	? SvMAGIC (sv)->mg_type == type \
304	? SvMAGIC (cv) \	368	? SvMAGIC (sv) \
305	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	369	: mg_find (sv, type) \
306	: 0	370	: 0
		371
		372	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		373	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
307		374
308	static struct coro *	375	static struct coro *
309	SvSTATE_ (pTHX_ SV *coro)	376	SvSTATE_ (pTHX_ SV *coro)
310	{	377	{
311	HV *stash;	378	HV *stash;
312	MAGIC *mg;	379	MAGIC *mg;
313		380
314	if (SvROK (coro))	381	if (SvROK (coro))
315	coro = SvRV (coro);	382	coro = SvRV (coro);
316		383
317	if (SvTYPE (coro) != SVt_PVHV)	384	if (expect_false (SvTYPE (coro) != SVt_PVHV))
318	croak ("Coro::State object required");	385	croak ("Coro::State object required");
319		386
320	stash = SvSTASH (coro);	387	stash = SvSTASH (coro);
321	if (stash != coro_stash && stash != coro_state_stash)	388	if (expect_false (stash != coro_stash && stash != coro_state_stash))
322	{	389	{
323	/* very slow, but rare, check */	390	/* very slow, but rare, check */
324	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	391	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
325	croak ("Coro::State object required");	392	croak ("Coro::State object required");
326	}	393	}
327		394
328	mg = CORO_MAGIC (coro);	395	mg = CORO_MAGIC_state (coro);
329	return (struct coro *)mg->mg_ptr;	396	return (struct coro *)mg->mg_ptr;
330	}	397	}
331		398
332	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	399	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
333		400
334	/* the next two functions merely cache the padlists */	401	/* the next two functions merely cache the padlists */
335	static void	402	static void
336	get_padlist (pTHX_ CV *cv)	403	get_padlist (pTHX_ CV *cv)
337	{	404	{
338	MAGIC *mg = CORO_MAGIC (cv);	405	MAGIC *mg = CORO_MAGIC_cv (cv);
339	AV *av;	406	AV *av;
340		407
341	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	408	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
342	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	409	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
343	else	410	else
344	{	411	{
345	#if CORO_PREFER_PERL_FUNCTIONS	412	#if CORO_PREFER_PERL_FUNCTIONS
346	/* this is probably cleaner, but also slower? */	413	/* this is probably cleaner, but also slower? */
…		…
355	}	422	}
356		423
357	static void	424	static void
358	put_padlist (pTHX_ CV *cv)	425	put_padlist (pTHX_ CV *cv)
359	{	426	{
360	MAGIC *mg = CORO_MAGIC (cv);	427	MAGIC *mg = CORO_MAGIC_cv (cv);
361	AV *av;	428	AV *av;
362		429
363	if (!mg)	430	if (expect_false (!mg))
364	{	431	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
365	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
366	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
367	mg->mg_virtual = &vtbl_coro;
368	mg->mg_obj = (SV *)newAV ();
369	}
370		432
371	av = (AV *)mg->mg_obj;	433	av = (AV *)mg->mg_obj;
372		434
373	if (AvFILLp (av) >= AvMAX (av))	435	if (expect_false (AvFILLp (av) >= AvMAX (av)))
374	av_extend (av, AvMAX (av) + 1);	436	av_extend (av, AvMAX (av) + 1);
375		437
376	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	438	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
377	}	439	}
378		440
379	/ load & save, init *****************************************************/	441	/ load & save, init *****************************************************/
380		442
381	static void	443	static void
382	load_perl (pTHX_ Coro__State c)	444	load_perl (pTHX_ Coro__State c)
383	{	445	{
		446	perl_slots *slot = c->slot;
		447	c->slot = 0;
		448
		449	PL_mainstack = c->mainstack;
		450
		451	GvSV (PL_defgv) = slot->defsv;
		452	GvAV (PL_defgv) = slot->defav;
		453	GvSV (PL_errgv) = slot->errsv;
		454	GvSV (irsgv) = slot->irsgv;
		455
384	#define VAR(name,type) PL_ ## name = c->name;	456	#define VAR(name,type) PL_ ## name = slot->name;
385	# include "state.h"	457	# include "state.h"
386	#undef VAR	458	#undef VAR
387
388	GvSV (PL_defgv) = c->defsv;
389	GvAV (PL_defgv) = c->defav;
390	GvSV (PL_errgv) = c->errsv;
391	PL_defoutgv = c->deffh;
392	PL_rs = c->irssv;
393	GvSV (irsgv) = c->irssv_sv;
394		459
395	{	460	{
396	dSP;	461	dSP;
		462
397	CV *cv;	463	CV *cv;
398		464
399	/* now do the ugly restore mess */	465	/* now do the ugly restore mess */
400	while ((cv = (CV *)POPs))	466	while (expect_true (cv = (CV *)POPs))
401	{	467	{
402	put_padlist (aTHX_ cv); /* mark this padlist as available */	468	put_padlist (aTHX_ cv); /* mark this padlist as available */
403	CvDEPTH (cv) = PTR2IV (POPs);	469	CvDEPTH (cv) = PTR2IV (POPs);
404	CvPADLIST (cv) = (AV *)POPs;	470	CvPADLIST (cv) = (AV *)POPs;
405	}	471	}
…		…
424		490
425	XPUSHs (Nullsv);	491	XPUSHs (Nullsv);
426	/* this loop was inspired by pp_caller */	492	/* this loop was inspired by pp_caller */
427	for (;;)	493	for (;;)
428	{	494	{
429	while (cxix >= 0)	495	while (expect_true (cxix >= 0))
430	{	496	{
431	PERL_CONTEXT *cx = &ccstk[cxix--];	497	PERL_CONTEXT *cx = &ccstk[cxix--];
432		498
433	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	499	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
434	{	500	{
435	CV *cv = cx->blk_sub.cv;	501	CV *cv = cx->blk_sub.cv;
436		502
437	if (CvDEPTH (cv))	503	if (expect_true (CvDEPTH (cv)))
438	{	504	{
439	EXTEND (SP, 3);	505	EXTEND (SP, 3);
440	PUSHs ((SV *)CvPADLIST (cv));	506	PUSHs ((SV *)CvPADLIST (cv));
441	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
442	PUSHs ((SV *)cv);	508	PUSHs ((SV *)cv);
…		…
445	get_padlist (aTHX_ cv);	511	get_padlist (aTHX_ cv);
446	}	512	}
447	}	513	}
448	}	514	}
449		515
450	if (top_si->si_type == PERLSI_MAIN)	516	if (expect_true (top_si->si_type == PERLSI_MAIN))
451	break;	517	break;
452		518
453	top_si = top_si->si_prev;	519	top_si = top_si->si_prev;
454	ccstk = top_si->si_cxstack;	520	ccstk = top_si->si_cxstack;
455	cxix = top_si->si_cxix;	521	cxix = top_si->si_cxix;
456	}	522	}
457		523
458	PUTBACK;	524	PUTBACK;
459	}	525	}
460		526
		527	/* allocate some space on the context stack for our purposes */
		528	/* we manually unroll here, as usually 2 slots is enough */
		529	if (SLOT_COUNT >= 1) CXINC;
		530	if (SLOT_COUNT >= 2) CXINC;
		531	if (SLOT_COUNT >= 3) CXINC;
		532	{
		533	int i;
		534	for (i = 3; i < SLOT_COUNT; ++i)
		535	CXINC;
		536	}
		537	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		538
		539	c->mainstack = PL_mainstack;
		540
		541	{
		542	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		543
461	c->defav = GvAV (PL_defgv);	544	slot->defav = GvAV (PL_defgv);
462	c->defsv = DEFSV;	545	slot->defsv = DEFSV;
463	c->errsv = ERRSV;	546	slot->errsv = ERRSV;
464	c->deffh = PL_defoutgv;
465	c->irssv = PL_rs;
466	c->irssv_sv = GvSV (irsgv);	547	slot->irsgv = GvSV (irsgv);
467		548
468	#define VAR(name,type)c->name = PL_ ## name;	549	#define VAR(name,type) slot->name = PL_ ## name;
469	# include "state.h"	550	# include "state.h"
470	#undef VAR	551	#undef VAR
		552	}
471	}	553	}
472		554
473	/*	555	/*
474	* allocate various perl stacks. This is an exact copy	556	* allocate various perl stacks. This is an exact copy
475	* of perl.c:init_stacks, except that it uses less memory	557	* of perl.c:init_stacks, except that it uses less memory
…		…
480	# define coro_init_stacks init_stacks	562	# define coro_init_stacks init_stacks
481	#else	563	#else
482	static void	564	static void
483	coro_init_stacks (pTHX)	565	coro_init_stacks (pTHX)
484	{	566	{
485	PL_curstackinfo = new_stackinfo(64, 6);	567	PL_curstackinfo = new_stackinfo(32, 8);
486	PL_curstackinfo->si_type = PERLSI_MAIN;	568	PL_curstackinfo->si_type = PERLSI_MAIN;
487	PL_curstack = PL_curstackinfo->si_stack;	569	PL_curstack = PL_curstackinfo->si_stack;
488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	570	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
489		571
490	PL_stack_base = AvARRAY(PL_curstack);	572	PL_stack_base = AvARRAY(PL_curstack);
491	PL_stack_sp = PL_stack_base;	573	PL_stack_sp = PL_stack_base;
492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	574	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
493		575
494	New(50,PL_tmps_stack,64,SV*);	576	New(50,PL_tmps_stack,32,SV*);
495	PL_tmps_floor = -1;	577	PL_tmps_floor = -1;
496	PL_tmps_ix = -1;	578	PL_tmps_ix = -1;
497	PL_tmps_max = 64;	579	PL_tmps_max = 32;
498		580
499	New(54,PL_markstack,16,I32);	581	New(54,PL_markstack,16,I32);
500	PL_markstack_ptr = PL_markstack;	582	PL_markstack_ptr = PL_markstack;
501	PL_markstack_max = PL_markstack + 16;	583	PL_markstack_max = PL_markstack + 16;
502		584
503	#ifdef SET_MARK_OFFSET	585	#ifdef SET_MARK_OFFSET
504	SET_MARK_OFFSET;	586	SET_MARK_OFFSET;
505	#endif	587	#endif
506		588
507	New(54,PL_scopestack,16,I32);	589	New(54,PL_scopestack,8,I32);
508	PL_scopestack_ix = 0;	590	PL_scopestack_ix = 0;
509	PL_scopestack_max = 16;	591	PL_scopestack_max = 8;
510		592
511	New(54,PL_savestack,64,ANY);	593	New(54,PL_savestack,24,ANY);
512	PL_savestack_ix = 0;	594	PL_savestack_ix = 0;
513	PL_savestack_max = 64;	595	PL_savestack_max = 24;
514		596
515	#if !PERL_VERSION_ATLEAST (5,9,0)	597	#if !PERL_VERSION_ATLEAST (5,9,0)
516	New(54,PL_retstack,4,OP*);	598	New(54,PL_retstack,4,OP*);
517	PL_retstack_ix = 0;	599	PL_retstack_ix = 0;
518	PL_retstack_max = 4;	600	PL_retstack_max = 4;
…		…
551	}	633	}
552		634
553	static size_t	635	static size_t
554	coro_rss (pTHX_ struct coro *coro)	636	coro_rss (pTHX_ struct coro *coro)
555	{	637	{
556	size_t rss = sizeof (coro);	638	size_t rss = sizeof (*coro);
557		639
558	if (coro->mainstack)	640	if (coro->mainstack)
559	{	641	{
		642	perl_slots tmp_slot;
		643	perl_slots *slot;
		644
560	if (coro->flags & CF_RUNNING)	645	if (coro->flags & CF_RUNNING)
561	{	646	{
		647	slot = &tmp_slot;
		648
562	#define VAR(name,type)coro->name = PL_ ## name;	649	#define VAR(name,type) slot->name = PL_ ## name;
563	# include "state.h"	650	# include "state.h"
564	#undef VAR	651	#undef VAR
565	}	652	}
		653	else
		654	slot = coro->slot;
566		655
567	rss += sizeof (coro->curstackinfo);	656	rss += sizeof (slot->curstackinfo);
568	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
569	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
570	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
571	rss += coro->tmps_max * sizeof (SV *);	659	rss += slot->tmps_max * sizeof (SV *);
572	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
573	rss += coro->scopestack_max * sizeof (I32);	661	rss += slot->scopestack_max * sizeof (I32);
574	rss += coro->savestack_max * sizeof (ANY);	662	rss += slot->savestack_max * sizeof (ANY);
575		663
576	#if !PERL_VERSION_ATLEAST (5,9,0)	664	#if !PERL_VERSION_ATLEAST (5,9,0)
577	rss += coro->retstack_max * sizeof (OP *);	665	rss += slot->retstack_max * sizeof (OP *);
578	#endif	666	#endif
579	}	667	}
580		668
581	return rss;	669	return rss;
582	}	670	}
583		671
584	/ coroutine stack handling **********************************************/	672	/ coroutine stack handling **********************************************/
		673
		674	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		675	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		676
		677	/*
		678	* This overrides the default magic get method of %SIG elements.
		679	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		680	* and instead of tryign to save and restore the hash elements, we just provide
		681	* readback here.
		682	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		683	* not expecting this to actually change the hook. This is a potential problem
		684	* when a schedule happens then, but we ignore this.
		685	*/
		686	static int
		687	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		688	{
		689	const char *s = MgPV_nolen_const (mg);
		690
		691	if (*s == '_')
		692	{
		693	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		694	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		695	}
		696
		697	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		698	}
		699
		700	static int
		701	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		702	{
		703	const char *s = MgPV_nolen_const (mg);
		704
		705	if (*s == '_')
		706	{
		707	SV **svp = 0;
		708
		709	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		710	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		711
		712	if (svp)
		713	{
		714	SV old = svp;
		715	*svp = newSVsv (sv);
		716	SvREFCNT_dec (old);
		717	return;
		718	}
		719	}
		720
		721	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		722	}
585		723
586	static void	724	static void
587	coro_setup (pTHX_ struct coro *coro)	725	coro_setup (pTHX_ struct coro *coro)
588	{	726	{
589	/*	727	/*
…		…
594	PL_runops = RUNOPS_DEFAULT;	732	PL_runops = RUNOPS_DEFAULT;
595	PL_curcop = &PL_compiling;	733	PL_curcop = &PL_compiling;
596	PL_in_eval = EVAL_NULL;	734	PL_in_eval = EVAL_NULL;
597	PL_comppad = 0;	735	PL_comppad = 0;
598	PL_curpm = 0;	736	PL_curpm = 0;
		737	PL_curpad = 0;
599	PL_localizing = 0;	738	PL_localizing = 0;
600	PL_dirty = 0;	739	PL_dirty = 0;
601	PL_restartop = 0;	740	PL_restartop = 0;
		741
		742	/* recreate the die/warn hooks */
		743	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		744	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
602		745
603	GvSV (PL_defgv) = NEWSV (0, 0);	746	GvSV (PL_defgv) = newSV (0);
604	GvAV (PL_defgv) = coro->args; coro->args = 0;	747	GvAV (PL_defgv) = coro->args; coro->args = 0;
605	GvSV (PL_errgv) = NEWSV (0, 0);	748	GvSV (PL_errgv) = newSV (0);
606	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	749	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
607	PL_rs = newSVsv (GvSV (irsgv));	750	PL_rs = newSVsv (GvSV (irsgv));
608		751	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
609	{
610	IO *io = newIO ();
611	PL_defoutgv = newGVgen ("Coro");
612	GvIOp(PL_defoutgv) = io;
613	IoTYPE (io) = IoTYPE_WRONLY;
614	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
615	IoFLAGS (io) \|= IOf_FLUSH;
616	}
617		752
618	{	753	{
619	dSP;	754	dSP;
620	LOGOP myop;	755	LOGOP myop;
621		756
622	Zero (&myop, 1, LOGOP);	757	Zero (&myop, 1, LOGOP);
623	myop.op_next = Nullop;	758	myop.op_next = Nullop;
624	myop.op_flags = OPf_WANT_VOID;	759	myop.op_flags = OPf_WANT_VOID;
625		760
626	PUSHMARK (SP);	761	PUSHMARK (SP);
627	XPUSHs (av_shift (GvAV (PL_defgv)));	762	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
628	PUTBACK;	763	PUTBACK;
629	PL_op = (OP *)&myop;	764	PL_op = (OP *)&myop;
630	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	765	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
631	SPAGAIN;	766	SPAGAIN;
632	}	767	}
633		768
634	ENTER; /* necessary e.g. for dounwind */	769	/* this newly created coroutine might be run on an existing cctx which most
		770	* likely was suspended in set_stacklevel, called from entersub.
		771	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		772	* so we ENTER here for symmetry
		773	*/
		774	ENTER;
635	}	775	}
636		776
637	static void	777	static void
638	coro_destroy (pTHX_ struct coro *coro)	778	coro_destroy (pTHX_ struct coro *coro)
639	{	779	{
…		…
659	SvREFCNT_dec (GvSV (PL_errgv));	799	SvREFCNT_dec (GvSV (PL_errgv));
660	SvREFCNT_dec (PL_defoutgv);	800	SvREFCNT_dec (PL_defoutgv);
661	SvREFCNT_dec (PL_rs);	801	SvREFCNT_dec (PL_rs);
662	SvREFCNT_dec (GvSV (irsgv));	802	SvREFCNT_dec (GvSV (irsgv));
663		803
		804	SvREFCNT_dec (PL_diehook);
		805	SvREFCNT_dec (PL_warnhook);
		806
		807	SvREFCNT_dec (coro->saved_deffh);
		808	SvREFCNT_dec (coro->throw);
		809
664	coro_destroy_stacks (aTHX);	810	coro_destroy_stacks (aTHX);
665	}	811	}
666		812
667	static void	813	static void
668	free_coro_mortal (pTHX)	814	free_coro_mortal (pTHX)
669	{	815	{
670	if (coro_mortal)	816	if (expect_true (coro_mortal))
671	{	817	{
672	SvREFCNT_dec (coro_mortal);	818	SvREFCNT_dec (coro_mortal);
673	coro_mortal = 0;	819	coro_mortal = 0;
674	}	820	}
675	}	821	}
…		…
704	bot = PL_stack_base + cx->blk_oldsp + 1;	850	bot = PL_stack_base + cx->blk_oldsp + 1;
705	top = cx->blk_gimme == G_ARRAY ? SP + 1	851	top = cx->blk_gimme == G_ARRAY ? SP + 1
706	: cx->blk_gimme == G_SCALAR ? bot + 1	852	: cx->blk_gimme == G_SCALAR ? bot + 1
707	: bot;	853	: bot;
708		854
		855	av_extend (av, top - bot);
709	while (bot < top)	856	while (bot < top)
710	av_push (av, SvREFCNT_inc (*bot++));	857	av_push (av, SvREFCNT_inc (*bot++));
711		858
712	PL_runops = RUNOPS_DEFAULT;	859	PL_runops = RUNOPS_DEFAULT;
713	ENTER;	860	ENTER;
…		…
753	SAVETMPS;	900	SAVETMPS;
754	EXTEND (SP, 3);	901	EXTEND (SP, 3);
755	PUSHMARK (SP);	902	PUSHMARK (SP);
756	PUSHs (&PL_sv_yes);	903	PUSHs (&PL_sv_yes);
757	PUSHs (fullname);	904	PUSHs (fullname);
758	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	905	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
759	PUTBACK;	906	PUTBACK;
760	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	907	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
761	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	908	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
762	SPAGAIN;	909	SPAGAIN;
763	FREETMPS;	910	FREETMPS;
…		…
799		946
800	/* inject a fake call to Coro::State::_cctx_init into the execution */	947	/* inject a fake call to Coro::State::_cctx_init into the execution */
801	/* _cctx_init should be careful, as it could be called at almost any time */	948	/* _cctx_init should be careful, as it could be called at almost any time */
802	/* during execution of a perl program */	949	/* during execution of a perl program */
803	static void NOINLINE	950	static void NOINLINE
804	prepare_cctx (pTHX_ coro_cctx *cctx)	951	cctx_prepare (pTHX_ coro_cctx *cctx)
805	{	952	{
806	dSP;	953	dSP;
807	LOGOP myop;	954	LOGOP myop;
808		955
809	PL_top_env = &PL_start_env;	956	PL_top_env = &PL_start_env;
…		…
827		974
828	/*	975	/*
829	* this is a _very_ stripped down perl interpreter ;)	976	* this is a _very_ stripped down perl interpreter ;)
830	*/	977	*/
831	static void	978	static void
832	coro_run (void *arg)	979	cctx_run (void *arg)
833	{	980	{
834	dTHX;	981	dTHX;
835		982
836	/* coro_run is the alternative tail of transfer(), so unlock here. */	983	/* cctx_run is the alternative tail of transfer(), so unlock here. */
837	UNLOCK;	984	UNLOCK;
838		985
839	/* we now skip the entersub that lead to transfer() */	986	/* we now skip the entersub that lead to transfer() */
840	PL_op = PL_op->op_next;	987	PL_op = PL_op->op_next;
841		988
842	/* inject a fake subroutine call to cctx_init */	989	/* inject a fake subroutine call to cctx_init */
843	prepare_cctx (aTHX_ (coro_cctx *)arg);	990	cctx_prepare (aTHX_ (coro_cctx *)arg);
844		991
845	/* somebody or something will hit me for both perl_run and PL_restartop */	992	/* somebody or something will hit me for both perl_run and PL_restartop */
846	PL_restartop = PL_op;	993	PL_restartop = PL_op;
847	perl_run (PL_curinterp);	994	perl_run (PL_curinterp);
848		995
…		…
867	++cctx_count;	1014	++cctx_count;
868		1015
869	Newz (0, cctx, 1, coro_cctx);	1016	Newz (0, cctx, 1, coro_cctx);
870		1017
871	#if HAVE_MMAP	1018	#if HAVE_MMAP
872
873	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1019	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
874	/* mmap supposedly does allocate-on-write for us */	1020	/* mmap supposedly does allocate-on-write for us */
875	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1021	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
876		1022
877	if (cctx->sptr != (void *)-1)	1023	if (cctx->sptr != (void *)-1)
…		…
898	stack_start = cctx->sptr;	1044	stack_start = cctx->sptr;
899	stack_size = cctx->ssize;	1045	stack_size = cctx->ssize;
900	}	1046	}
901		1047
902	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1048	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
903	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1049	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
904		1050
905	return cctx;	1051	return cctx;
906	}	1052	}
907		1053
908	static void	1054	static void
…		…
925	Safefree (cctx->sptr);	1071	Safefree (cctx->sptr);
926		1072
927	Safefree (cctx);	1073	Safefree (cctx);
928	}	1074	}
929		1075
		1076	/* wether this cctx should be destructed */
		1077	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1078
930	static coro_cctx *	1079	static coro_cctx *
931	cctx_get (pTHX)	1080	cctx_get (pTHX)
932	{	1081	{
933	while (cctx_first)	1082	while (expect_true (cctx_first))
934	{	1083	{
935	coro_cctx *cctx = cctx_first;	1084	coro_cctx *cctx = cctx_first;
936	cctx_first = cctx->next;	1085	cctx_first = cctx->next;
937	--cctx_idle;	1086	--cctx_idle;
938		1087
939	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1088	if (expect_true (!CCTX_EXPIRED (cctx)))
940	return cctx;	1089	return cctx;
941		1090
942	cctx_destroy (cctx);	1091	cctx_destroy (cctx);
943	}	1092	}
944		1093
…		…
947		1096
948	static void	1097	static void
949	cctx_put (coro_cctx *cctx)	1098	cctx_put (coro_cctx *cctx)
950	{	1099	{
951	/* free another cctx if overlimit */	1100	/* free another cctx if overlimit */
952	if (cctx_idle >= MAX_IDLE_CCTX)	1101	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
953	{	1102	{
954	coro_cctx *first = cctx_first;	1103	coro_cctx *first = cctx_first;
955	cctx_first = first->next;	1104	cctx_first = first->next;
956	--cctx_idle;	1105	--cctx_idle;
957		1106
…		…
963	cctx_first = cctx;	1112	cctx_first = cctx;
964	}	1113	}
965		1114
966	/ coroutine switching ***************************************************/	1115	/ coroutine switching ***************************************************/
967		1116
968	static void NOINLINE	1117	static void
969	transfer_check (pTHX_ struct coro prev, struct coro next)	1118	transfer_check (pTHX_ struct coro prev, struct coro next)
970	{	1119	{
971	if (prev != next)	1120	if (expect_true (prev != next))
972	{	1121	{
973	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1122	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
974	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1123	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
975		1124
976	if (next->flags & CF_RUNNING)	1125	if (expect_false (next->flags & CF_RUNNING))
977	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1126	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
978		1127
979	if (next->flags & CF_DESTROYED)	1128	if (expect_false (next->flags & CF_DESTROYED))
980	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1129	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
981		1130
		1131	if (
		1132	#if PERL_VERSION_ATLEAST (5,9,0)
		1133	expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
		1134	#else
982	if (PL_lex_state != LEX_NOTPARSING)	1135	expect_false (PL_lex_state != LEX_NOTPARSING)
		1136	#endif
		1137	)
983	croak ("Coro::State::transfer called while parsing, but this is not supported");	1138	croak ("Coro::State::transfer called while parsing, but this is not supported");
984	}	1139	}
985	}	1140	}
986		1141
987	/* always use the TRANSFER macro */	1142	/* always use the TRANSFER macro */
988	static void NOINLINE	1143	static void NOINLINE
989	transfer (pTHX_ struct coro prev, struct coro next)	1144	transfer (pTHX_ struct coro prev, struct coro next)
990	{	1145	{
991	dSTACKLEVEL;	1146	dSTACKLEVEL;
		1147	static volatile int has_throw;
992		1148
993	/* sometimes transfer is only called to set idle_sp */	1149	/* sometimes transfer is only called to set idle_sp */
994	if (!next)	1150	if (expect_false (!next))
995	{	1151	{
996	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1152	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
997	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1153	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
998	}	1154	}
999	else if (prev != next)	1155	else if (expect_true (prev != next))
1000	{	1156	{
1001	coro_cctx *prev__cctx;	1157	coro_cctx *prev__cctx;
1002		1158
1003	if (prev->flags & CF_NEW)	1159	if (expect_false (prev->flags & CF_NEW))
1004	{	1160	{
1005	/* create a new empty context */	1161	/* create a new empty context */
1006	Newz (0, prev->cctx, 1, coro_cctx);	1162	Newz (0, prev->cctx, 1, coro_cctx);
1007	prev->flags &= ~CF_NEW;	1163	prev->flags &= ~CF_NEW;
1008	prev->flags \|= CF_RUNNING;	1164	prev->flags \|= CF_RUNNING;
…		…
1011	prev->flags &= ~CF_RUNNING;	1167	prev->flags &= ~CF_RUNNING;
1012	next->flags \|= CF_RUNNING;	1168	next->flags \|= CF_RUNNING;
1013		1169
1014	LOCK;	1170	LOCK;
1015		1171
		1172	/* first get rid of the old state */
		1173	save_perl (aTHX_ prev);
		1174
1016	if (next->flags & CF_NEW)	1175	if (expect_false (next->flags & CF_NEW))
1017	{	1176	{
1018	/* need to start coroutine */	1177	/* need to start coroutine */
1019	next->flags &= ~CF_NEW;	1178	next->flags &= ~CF_NEW;
1020	/* first get rid of the old state */
1021	save_perl (aTHX_ prev);
1022	/* setup coroutine call */	1179	/* setup coroutine call */
1023	coro_setup (aTHX_ next);	1180	coro_setup (aTHX_ next);
1024	}	1181	}
1025	else	1182	else
1026	{
1027	/* coroutine already started */
1028	save_perl (aTHX_ prev);
1029	load_perl (aTHX_ next);	1183	load_perl (aTHX_ next);
1030	}
1031		1184
1032	prev__cctx = prev->cctx;	1185	prev__cctx = prev->cctx;
1033		1186
1034	/* possibly "free" the cctx */	1187	/* possibly "free" the cctx */
1035	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1188	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1036	{	1189	{
1037	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1190	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1038	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1191	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1039		1192
1040	prev->cctx = 0;	1193	prev->cctx = 0;
1041		1194
		1195	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1196	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1197	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1198	if (!next->cctx)
		1199	next->cctx = cctx_get (aTHX);
		1200
1042	cctx_put (prev__cctx);	1201	cctx_put (prev__cctx);
1043	}	1202	}
1044		1203
1045	++next->usecount;	1204	++next->usecount;
1046		1205
1047	if (!next->cctx)	1206	if (expect_true (!next->cctx))
1048	next->cctx = cctx_get (aTHX);	1207	next->cctx = cctx_get (aTHX);
1049		1208
		1209	has_throw = !!next->throw;
		1210
1050	if (prev__cctx != next->cctx)	1211	if (expect_false (prev__cctx != next->cctx))
1051	{	1212	{
1052	prev__cctx->top_env = PL_top_env;	1213	prev__cctx->top_env = PL_top_env;
1053	PL_top_env = next->cctx->top_env;	1214	PL_top_env = next->cctx->top_env;
1054	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1215	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1055	}	1216	}
1056		1217
1057	free_coro_mortal (aTHX);	1218	free_coro_mortal (aTHX);
1058	UNLOCK;	1219	UNLOCK;
		1220
		1221	if (expect_false (has_throw))
		1222	{
		1223	struct coro *coro = SvSTATE (coro_current);
		1224
		1225	if (coro->throw)
		1226	{
		1227	SV *exception = coro->throw;
		1228	coro->throw = 0;
		1229	sv_setsv (ERRSV, exception);
		1230	croak (0);
		1231	}
		1232	}
1059	}	1233	}
1060	}	1234	}
1061		1235
1062	struct transfer_args	1236	struct transfer_args
1063	{	1237	{
…		…
1098	save_perl (aTHX_ &temp);	1272	save_perl (aTHX_ &temp);
1099	load_perl (aTHX_ coro);	1273	load_perl (aTHX_ coro);
1100		1274
1101	coro_destroy (aTHX_ coro);	1275	coro_destroy (aTHX_ coro);
1102		1276
1103	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1277	load_perl (aTHX_ &temp);
1104		1278
1105	coro->mainstack = 0;	1279	coro->slot = 0;
1106	}	1280	}
1107		1281
1108	cctx_destroy (coro->cctx);	1282	cctx_destroy (coro->cctx);
1109	SvREFCNT_dec (coro->args);	1283	SvREFCNT_dec (coro->args);
1110		1284
…		…
1178	{	1352	{
1179	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1353	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1180	}	1354	}
1181		1355
1182	static SV *	1356	static SV *
1183	coro_deq (pTHX_ int min_prio)	1357	coro_deq (pTHX)
1184	{	1358	{
1185	int prio = PRIO_MAX - PRIO_MIN;	1359	int prio;
1186		1360
1187	min_prio -= PRIO_MIN;
1188	if (min_prio < 0)
1189	min_prio = 0;
1190
1191	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1361	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1192	if (AvFILLp (coro_ready [prio]) >= 0)	1362	if (AvFILLp (coro_ready [prio]) >= 0)
1193	return av_shift (coro_ready [prio]);	1363	return av_shift (coro_ready [prio]);
1194		1364
1195	return 0;	1365	return 0;
1196	}	1366	}
…		…
1232	SV prev_sv, next_sv;	1402	SV prev_sv, next_sv;
1233		1403
1234	for (;;)	1404	for (;;)
1235	{	1405	{
1236	LOCK;	1406	LOCK;
1237	next_sv = coro_deq (aTHX_ PRIO_MIN);	1407	next_sv = coro_deq (aTHX);
1238		1408
1239	/* nothing to schedule: call the idle handler */	1409	/* nothing to schedule: call the idle handler */
1240	if (!next_sv)	1410	if (expect_false (!next_sv))
1241	{	1411	{
1242	dSP;	1412	dSP;
1243	UNLOCK;	1413	UNLOCK;
1244		1414
1245	ENTER;	1415	ENTER;
1246	SAVETMPS;	1416	SAVETMPS;
1247		1417
1248	PUSHMARK (SP);	1418	PUSHMARK (SP);
1249	PUTBACK;	1419	PUTBACK;
1250	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1420	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1421	SPAGAIN;
1251		1422
1252	FREETMPS;	1423	FREETMPS;
1253	LEAVE;	1424	LEAVE;
1254	continue;	1425	continue;
1255	}	1426	}
1256		1427
1257	ta->next = SvSTATE (next_sv);	1428	ta->next = SvSTATE (next_sv);
1258		1429
1259	/* cannot transfer to destroyed coros, skip and look for next */	1430	/* cannot transfer to destroyed coros, skip and look for next */
1260	if (ta->next->flags & CF_DESTROYED)	1431	if (expect_false (ta->next->flags & CF_DESTROYED))
1261	{	1432	{
1262	UNLOCK;	1433	UNLOCK;
1263	SvREFCNT_dec (next_sv);	1434	SvREFCNT_dec (next_sv);
1264	/* coro_nready is already taken care of by destroy */	1435	/* coro_nready is already taken care of by destroy */
1265	continue;	1436	continue;
…		…
1321	dTHX;	1492	dTHX;
1322	struct transfer_args ta;	1493	struct transfer_args ta;
1323		1494
1324	prepare_cede (aTHX_ &ta);	1495	prepare_cede (aTHX_ &ta);
1325		1496
1326	if (ta.prev != ta.next)	1497	if (expect_true (ta.prev != ta.next))
1327	{	1498	{
1328	TRANSFER (ta);	1499	TRANSFER (ta);
1329	return 1;	1500	return 1;
1330	}	1501	}
1331	else	1502	else
…		…
1367	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1538	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1368		1539
1369	if (coro->flags & CF_RUNNING)	1540	if (coro->flags & CF_RUNNING)
1370	PL_runops = RUNOPS_DEFAULT;	1541	PL_runops = RUNOPS_DEFAULT;
1371	else	1542	else
1372	coro->runops = RUNOPS_DEFAULT;	1543	coro->slot->runops = RUNOPS_DEFAULT;
1373	}	1544	}
1374	}	1545	}
1375		1546
1376	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1547	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1377		1548
…		…
1382	#ifdef USE_ITHREADS	1553	#ifdef USE_ITHREADS
1383	MUTEX_INIT (&coro_mutex);	1554	MUTEX_INIT (&coro_mutex);
1384	#endif	1555	#endif
1385	BOOT_PAGESIZE;	1556	BOOT_PAGESIZE;
1386		1557
1387	irsgv = gv_fetchpv ("/", 1, SVt_PV);	1558	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1559	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1560
		1561	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1562	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1563	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1564	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1565
		1566	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1567	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1568	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1388		1569
1389	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1570	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1390		1571
1391	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1572	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1392	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1573	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1398		1579
1399	while (main_top_env->je_prev)	1580	while (main_top_env->je_prev)
1400	main_top_env = main_top_env->je_prev;	1581	main_top_env = main_top_env->je_prev;
1401		1582
1402	coroapi.ver = CORO_API_VERSION;	1583	coroapi.ver = CORO_API_VERSION;
		1584	coroapi.rev = CORO_API_REVISION;
1403	coroapi.transfer = api_transfer;	1585	coroapi.transfer = api_transfer;
1404		1586
1405	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1587	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1406	}	1588	}
1407		1589
1408	SV *	1590	SV *
1409	new (char *klass, ...)	1591	new (char *klass, ...)
1410	CODE:	1592	CODE:
1411	{	1593	{
1412	struct coro *coro;	1594	struct coro *coro;
		1595	MAGIC *mg;
1413	HV *hv;	1596	HV *hv;
1414	int i;	1597	int i;
1415		1598
1416	Newz (0, coro, 1, struct coro);	1599	Newz (0, coro, 1, struct coro);
1417	coro->args = newAV ();	1600	coro->args = newAV ();
…		…
1420	if (coro_first) coro_first->prev = coro;	1603	if (coro_first) coro_first->prev = coro;
1421	coro->next = coro_first;	1604	coro->next = coro_first;
1422	coro_first = coro;	1605	coro_first = coro;
1423		1606
1424	coro->hv = hv = newHV ();	1607	coro->hv = hv = newHV ();
1425	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1608	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1609	mg->mg_flags \|= MGf_DUP;
1426	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1610	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1427		1611
		1612	av_extend (coro->args, items - 1);
1428	for (i = 1; i < items; i++)	1613	for (i = 1; i < items; i++)
1429	av_push (coro->args, newSVsv (ST (i)));	1614	av_push (coro->args, newSVsv (ST (i)));
1430	}	1615	}
1431	OUTPUT:	1616	OUTPUT:
1432	RETVAL	1617	RETVAL
…		…
1443	Coro::cede_notself = 4	1628	Coro::cede_notself = 4
1444	CODE:	1629	CODE:
1445	{	1630	{
1446	struct transfer_args ta;	1631	struct transfer_args ta;
1447		1632
		1633	PUTBACK;
1448	switch (ix)	1634	switch (ix)
1449	{	1635	{
1450	case 0:	1636	case 0:
1451	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1637	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1452	ta.next = 0;	1638	ta.next = 0;
…		…
1471	if (!prepare_cede_notself (aTHX_ &ta))	1657	if (!prepare_cede_notself (aTHX_ &ta))
1472	XSRETURN_EMPTY;	1658	XSRETURN_EMPTY;
1473		1659
1474	break;	1660	break;
1475	}	1661	}
		1662	SPAGAIN;
1476		1663
1477	BARRIER;	1664	BARRIER;
		1665	PUTBACK;
1478	TRANSFER (ta);	1666	TRANSFER (ta);
1479		1667	SPAGAIN; /* might be the sp of a different coroutine now */
1480	if (GIMME_V != G_VOID && ta.next != ta.prev)	1668	/* be extra careful not to ever do anything after TRANSFER */
1481	XSRETURN_YES;
1482	}	1669	}
1483		1670
1484	bool	1671	bool
1485	_destroy (SV *coro_sv)	1672	_destroy (SV *coro_sv)
1486	CODE:	1673	CODE:
…		…
1535	CODE:	1722	CODE:
1536	{	1723	{
1537	if (coro->mainstack)	1724	if (coro->mainstack)
1538	{	1725	{
1539	struct coro temp;	1726	struct coro temp;
1540	Zero (&temp, 1, struct coro);
1541		1727
1542	if (!(coro->flags & CF_RUNNING))	1728	if (!(coro->flags & CF_RUNNING))
1543	{	1729	{
		1730	PUTBACK;
1544	save_perl (aTHX_ &temp);	1731	save_perl (aTHX_ &temp);
1545	load_perl (aTHX_ coro);	1732	load_perl (aTHX_ coro);
1546	}	1733	}
1547		1734
1548	{	1735	{
1549	dSP;	1736	dSP;
1550	ENTER;	1737	ENTER;
1551	SAVETMPS;	1738	SAVETMPS;
		1739	PUTBACK;
		1740	PUSHSTACK;
1552	PUSHMARK (SP);	1741	PUSHMARK (SP);
1553	PUTBACK;	1742
1554	if (ix)	1743	if (ix)
1555	eval_sv (coderef, 0);	1744	eval_sv (coderef, 0);
1556	else	1745	else
1557	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1746	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1747
		1748	POPSTACK;
1558	SPAGAIN;	1749	SPAGAIN;
1559	FREETMPS;	1750	FREETMPS;
1560	LEAVE;	1751	LEAVE;
1561	PUTBACK;	1752	PUTBACK;
1562	}	1753	}
1563		1754
1564	if (!(coro->flags & CF_RUNNING))	1755	if (!(coro->flags & CF_RUNNING))
1565	{	1756	{
1566	save_perl (aTHX_ coro);	1757	save_perl (aTHX_ coro);
1567	load_perl (aTHX_ &temp);	1758	load_perl (aTHX_ &temp);
		1759	SPAGAIN;
1568	}	1760	}
1569	}	1761	}
1570	}	1762	}
1571		1763
1572	SV *	1764	SV *
…		…
1613	case 1: RETVAL = coro->usecount; break;	1805	case 1: RETVAL = coro->usecount; break;
1614	}	1806	}
1615	OUTPUT:	1807	OUTPUT:
1616	RETVAL	1808	RETVAL
1617		1809
		1810	void
		1811	force_cctx ()
		1812	CODE:
		1813	struct coro *coro = SvSTATE (coro_current);
		1814	coro->cctx->idle_sp = 0;
1618		1815
1619	MODULE = Coro::State PACKAGE = Coro	1816	MODULE = Coro::State PACKAGE = Coro
1620		1817
1621	BOOT:	1818	BOOT:
1622	{	1819	{
1623	int i;	1820	int i;
1624		1821
1625	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1822	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1626	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1823	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1627	av_async_pool = get_av ("Coro::async_pool", TRUE);	1824	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1628		1825
1629	coro_current = get_sv ("Coro::current", FALSE);	1826	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1630	SvREADONLY_on (coro_current);	1827	SvREADONLY_on (coro_current);
1631		1828
1632	coro_stash = gv_stashpv ("Coro", TRUE);	1829	coro_stash = gv_stashpv ("Coro", TRUE);
1633		1830
1634	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1831	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1635	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1832	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1636	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1833	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1637	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1834	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1640		1837
1641	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1838	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1642	coro_ready[i] = newAV ();	1839	coro_ready[i] = newAV ();
1643		1840
1644	{	1841	{
1645	SV *sv = perl_get_sv("Coro::API", 1);	1842	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1843	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1646		1844
1647	coroapi.schedule = api_schedule;	1845	coroapi.schedule = api_schedule;
1648	coroapi.cede = api_cede;	1846	coroapi.cede = api_cede;
1649	coroapi.cede_notself = api_cede_notself;	1847	coroapi.cede_notself = api_cede_notself;
1650	coroapi.ready = api_ready;	1848	coroapi.ready = api_ready;
…		…
1701	CODE:	1899	CODE:
1702	RETVAL = coro_nready;	1900	RETVAL = coro_nready;
1703	OUTPUT:	1901	OUTPUT:
1704	RETVAL	1902	RETVAL
1705		1903
		1904	void
		1905	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1906	PROTOTYPE: $;$
		1907	CODE:
		1908	SvREFCNT_dec (self->throw);
		1909	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1910
		1911	void
		1912	swap_defsv (Coro::State self)
		1913	PROTOTYPE: $
		1914	ALIAS:
		1915	swap_defav = 1
		1916	CODE:
		1917	if (!self->slot)
		1918	croak ("cannot swap state with coroutine that has no saved state");
		1919	else
		1920	{
		1921	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1922	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1923
		1924	SV tmp = src; src = dst; *dst = tmp;
		1925	}
		1926
1706	# for async_pool speedup	1927	# for async_pool speedup
1707	void	1928	void
1708	_pool_1 (SV *cb)	1929	_pool_1 (SV *cb)
1709	CODE:	1930	CODE:
1710	{	1931	{
1711	int i, len;	1932	struct coro *coro = SvSTATE (coro_current);
1712	HV hv = (HV )SvRV (coro_current);	1933	HV hv = (HV )SvRV (coro_current);
1713	AV *defav = GvAV (PL_defgv);	1934	AV *defav = GvAV (PL_defgv);
1714	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1935	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1715	AV *invoke_av;	1936	AV *invoke_av;
		1937	int i, len;
1716		1938
1717	if (!invoke)	1939	if (!invoke)
		1940	{
		1941	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1718	croak ("\3terminate\2\n");	1942	croak ("\3async_pool terminate\2\n");
		1943	}
		1944
		1945	SvREFCNT_dec (coro->saved_deffh);
		1946	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1719		1947
1720	hv_store (hv, "desc", sizeof ("desc") - 1,	1948	hv_store (hv, "desc", sizeof ("desc") - 1,
1721	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1949	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1722		1950
1723	invoke_av = (AV *)SvRV (invoke);	1951	invoke_av = (AV *)SvRV (invoke);
…		…
1741	{	1969	{
1742	struct coro *coro = SvSTATE (coro_current);	1970	struct coro *coro = SvSTATE (coro_current);
1743		1971
1744	sv_setsv (cb, &PL_sv_undef);	1972	sv_setsv (cb, &PL_sv_undef);
1745		1973
		1974	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1975	coro->saved_deffh = 0;
		1976
1746	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1977	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1747	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1978	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1979	{
		1980	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1748	croak ("\3terminate\2\n");	1981	croak ("\3async_pool terminate\2\n");
		1982	}
1749		1983
1750	av_clear (GvAV (PL_defgv));	1984	av_clear (GvAV (PL_defgv));
1751	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1985	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1752	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1986	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1753		1987

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Comparing Coro/Coro/State.xs (file contents): Revision 1.180 by root, Wed Oct 3 17:12:20 2007 UTC vs. Revision 1.226 by root, Fri Apr 4 20:07:35 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.180 by root, Wed Oct 3 17:12:20 2007 UTC vs.
Revision 1.226 by root, Fri Apr 4 20:07:35 2008 UTC