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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.182 by root, Wed Oct 3 18:37:48 2007 UTC vs.
Revision 1.223 by root, Wed Feb 13 15:46:00 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	GV 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 transfers 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;
210	//SV *throw;	239	SV throw; / exception to be thrown */
211		240
212	/* async_pool */	241	/* async_pool */
213	GV *asp_deffh;	242	SV *saved_deffh;
214		243
215	/* linked list */	244	/* linked list */
216	struct coro next, prev;	245	struct coro next, prev;
217	HV hv; / the perl hash associated with this coro, if any */
218	};	246	};
219		247
220	typedef struct coro *Coro__State;	248	typedef struct coro *Coro__State;
221	typedef struct coro *Coro__State_or_hashref;	249	typedef struct coro *Coro__State_or_hashref;
222		250
…		…
234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	262	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
235	static int coro_nready;	263	static int coro_nready;
236	static struct coro *coro_first;	264	static struct coro *coro_first;
237		265
238	/ 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	}
239		297
240	static AV *	298	static AV *
241	coro_clone_padlist (pTHX_ CV *cv)	299	coro_clone_padlist (pTHX_ CV *cv)
242	{	300	{
243	AV *padlist = CvPADLIST (cv);	301	AV *padlist = CvPADLIST (cv);
…		…
291		349
292	/* casting is fun. */	350	/* casting is fun. */
293	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	351	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
294	free_padlist (aTHX_ padlist);	352	free_padlist (aTHX_ padlist);
295		353
296	SvREFCNT_dec (av);
297
298	return 0;	354	return 0;
299	}	355	}
300		356
301	#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
302		359
303	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	};
304		364
305	#define CORO_MAGIC(cv) \	365	#define CORO_MAGIC(sv,type) \
306	SvMAGIC (cv) \	366	SvMAGIC (sv) \
307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	367	? SvMAGIC (sv)->mg_type == type \
308	? SvMAGIC (cv) \	368	? SvMAGIC (sv) \
309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	369	: mg_find (sv, type) \
310	: 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)
311		374
312	static struct coro *	375	static struct coro *
313	SvSTATE_ (pTHX_ SV *coro)	376	SvSTATE_ (pTHX_ SV *coro)
314	{	377	{
315	HV *stash;	378	HV *stash;
316	MAGIC *mg;	379	MAGIC *mg;
317		380
318	if (SvROK (coro))	381	if (SvROK (coro))
319	coro = SvRV (coro);	382	coro = SvRV (coro);
320		383
321	if (SvTYPE (coro) != SVt_PVHV)	384	if (expect_false (SvTYPE (coro) != SVt_PVHV))
322	croak ("Coro::State object required");	385	croak ("Coro::State object required");
323		386
324	stash = SvSTASH (coro);	387	stash = SvSTASH (coro);
325	if (stash != coro_stash && stash != coro_state_stash)	388	if (expect_false (stash != coro_stash && stash != coro_state_stash))
326	{	389	{
327	/* very slow, but rare, check */	390	/* very slow, but rare, check */
328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	391	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
329	croak ("Coro::State object required");	392	croak ("Coro::State object required");
330	}	393	}
331		394
332	mg = CORO_MAGIC (coro);	395	mg = CORO_MAGIC_state (coro);
333	return (struct coro *)mg->mg_ptr;	396	return (struct coro *)mg->mg_ptr;
334	}	397	}
335		398
336	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	399	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
337		400
338	/* the next two functions merely cache the padlists */	401	/* the next two functions merely cache the padlists */
339	static void	402	static void
340	get_padlist (pTHX_ CV *cv)	403	get_padlist (pTHX_ CV *cv)
341	{	404	{
342	MAGIC *mg = CORO_MAGIC (cv);	405	MAGIC *mg = CORO_MAGIC_cv (cv);
343	AV *av;	406	AV *av;
344		407
345	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	408	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
346	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	409	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
347	else	410	else
348	{	411	{
349	#if CORO_PREFER_PERL_FUNCTIONS	412	#if CORO_PREFER_PERL_FUNCTIONS
350	/* this is probably cleaner, but also slower? */	413	/* this is probably cleaner, but also slower? */
…		…
359	}	422	}
360		423
361	static void	424	static void
362	put_padlist (pTHX_ CV *cv)	425	put_padlist (pTHX_ CV *cv)
363	{	426	{
364	MAGIC *mg = CORO_MAGIC (cv);	427	MAGIC *mg = CORO_MAGIC_cv (cv);
365	AV *av;	428	AV *av;
366		429
367	if (!mg)	430	if (expect_false (!mg))
368	{	431	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
369	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
370	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
371	mg->mg_virtual = &vtbl_coro;
372	mg->mg_obj = (SV *)newAV ();
373	}
374		432
375	av = (AV *)mg->mg_obj;	433	av = (AV *)mg->mg_obj;
376		434
377	if (AvFILLp (av) >= AvMAX (av))	435	if (expect_false (AvFILLp (av) >= AvMAX (av)))
378	av_extend (av, AvMAX (av) + 1);	436	av_extend (av, AvMAX (av) + 1);
379		437
380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	438	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
381	}	439	}
382		440
383	/ load & save, init *****************************************************/	441	/ load & save, init *****************************************************/
384		442
385	static void	443	static void
386	load_perl (pTHX_ Coro__State c)	444	load_perl (pTHX_ Coro__State c)
387	{	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
388	#define VAR(name,type) PL_ ## name = c->name;	456	#define VAR(name,type) PL_ ## name = slot->name;
389	# include "state.h"	457	# include "state.h"
390	#undef VAR	458	#undef VAR
391
392	GvSV (PL_defgv) = c->defsv;
393	GvAV (PL_defgv) = c->defav;
394	GvSV (PL_errgv) = c->errsv;
395	PL_defoutgv = c->deffh;
396	PL_rs = c->irssv;
397	GvSV (irsgv) = c->irssv_sv;
398		459
399	{	460	{
400	dSP;	461	dSP;
		462
401	CV *cv;	463	CV *cv;
402		464
403	/* now do the ugly restore mess */	465	/* now do the ugly restore mess */
404	while ((cv = (CV *)POPs))	466	while (expect_true (cv = (CV *)POPs))
405	{	467	{
406	put_padlist (aTHX_ cv); /* mark this padlist as available */	468	put_padlist (aTHX_ cv); /* mark this padlist as available */
407	CvDEPTH (cv) = PTR2IV (POPs);	469	CvDEPTH (cv) = PTR2IV (POPs);
408	CvPADLIST (cv) = (AV *)POPs;	470	CvPADLIST (cv) = (AV *)POPs;
409	}	471	}
…		…
428		490
429	XPUSHs (Nullsv);	491	XPUSHs (Nullsv);
430	/* this loop was inspired by pp_caller */	492	/* this loop was inspired by pp_caller */
431	for (;;)	493	for (;;)
432	{	494	{
433	while (cxix >= 0)	495	while (expect_true (cxix >= 0))
434	{	496	{
435	PERL_CONTEXT *cx = &ccstk[cxix--];	497	PERL_CONTEXT *cx = &ccstk[cxix--];
436		498
437	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	499	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
438	{	500	{
439	CV *cv = cx->blk_sub.cv;	501	CV *cv = cx->blk_sub.cv;
440		502
441	if (CvDEPTH (cv))	503	if (expect_true (CvDEPTH (cv)))
442	{	504	{
443	EXTEND (SP, 3);	505	EXTEND (SP, 3);
444	PUSHs ((SV *)CvPADLIST (cv));	506	PUSHs ((SV *)CvPADLIST (cv));
445	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
446	PUSHs ((SV *)cv);	508	PUSHs ((SV *)cv);
…		…
449	get_padlist (aTHX_ cv);	511	get_padlist (aTHX_ cv);
450	}	512	}
451	}	513	}
452	}	514	}
453		515
454	if (top_si->si_type == PERLSI_MAIN)	516	if (expect_true (top_si->si_type == PERLSI_MAIN))
455	break;	517	break;
456		518
457	top_si = top_si->si_prev;	519	top_si = top_si->si_prev;
458	ccstk = top_si->si_cxstack;	520	ccstk = top_si->si_cxstack;
459	cxix = top_si->si_cxix;	521	cxix = top_si->si_cxix;
460	}	522	}
461		523
462	PUTBACK;	524	PUTBACK;
463	}	525	}
464		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
465	c->defav = GvAV (PL_defgv);	544	slot->defav = GvAV (PL_defgv);
466	c->defsv = DEFSV;	545	slot->defsv = DEFSV;
467	c->errsv = ERRSV;	546	slot->errsv = ERRSV;
468	c->deffh = PL_defoutgv;
469	c->irssv = PL_rs;
470	c->irssv_sv = GvSV (irsgv);	547	slot->irsgv = GvSV (irsgv);
471		548
472	#define VAR(name,type)c->name = PL_ ## name;	549	#define VAR(name,type) slot->name = PL_ ## name;
473	# include "state.h"	550	# include "state.h"
474	#undef VAR	551	#undef VAR
		552	}
475	}	553	}
476		554
477	/*	555	/*
478	* allocate various perl stacks. This is an exact copy	556	* allocate various perl stacks. This is an exact copy
479	* of perl.c:init_stacks, except that it uses less memory	557	* of perl.c:init_stacks, except that it uses less memory
…		…
484	# define coro_init_stacks init_stacks	562	# define coro_init_stacks init_stacks
485	#else	563	#else
486	static void	564	static void
487	coro_init_stacks (pTHX)	565	coro_init_stacks (pTHX)
488	{	566	{
489	PL_curstackinfo = new_stackinfo(64, 6);	567	PL_curstackinfo = new_stackinfo(32, 8);
490	PL_curstackinfo->si_type = PERLSI_MAIN;	568	PL_curstackinfo->si_type = PERLSI_MAIN;
491	PL_curstack = PL_curstackinfo->si_stack;	569	PL_curstack = PL_curstackinfo->si_stack;
492	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	570	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
493		571
494	PL_stack_base = AvARRAY(PL_curstack);	572	PL_stack_base = AvARRAY(PL_curstack);
495	PL_stack_sp = PL_stack_base;	573	PL_stack_sp = PL_stack_base;
496	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	574	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
497		575
498	New(50,PL_tmps_stack,64,SV*);	576	New(50,PL_tmps_stack,32,SV*);
499	PL_tmps_floor = -1;	577	PL_tmps_floor = -1;
500	PL_tmps_ix = -1;	578	PL_tmps_ix = -1;
501	PL_tmps_max = 64;	579	PL_tmps_max = 32;
502		580
503	New(54,PL_markstack,16,I32);	581	New(54,PL_markstack,16,I32);
504	PL_markstack_ptr = PL_markstack;	582	PL_markstack_ptr = PL_markstack;
505	PL_markstack_max = PL_markstack + 16;	583	PL_markstack_max = PL_markstack + 16;
506		584
507	#ifdef SET_MARK_OFFSET	585	#ifdef SET_MARK_OFFSET
508	SET_MARK_OFFSET;	586	SET_MARK_OFFSET;
509	#endif	587	#endif
510		588
511	New(54,PL_scopestack,16,I32);	589	New(54,PL_scopestack,8,I32);
512	PL_scopestack_ix = 0;	590	PL_scopestack_ix = 0;
513	PL_scopestack_max = 16;	591	PL_scopestack_max = 8;
514		592
515	New(54,PL_savestack,64,ANY);	593	New(54,PL_savestack,24,ANY);
516	PL_savestack_ix = 0;	594	PL_savestack_ix = 0;
517	PL_savestack_max = 64;	595	PL_savestack_max = 24;
518		596
519	#if !PERL_VERSION_ATLEAST (5,9,0)	597	#if !PERL_VERSION_ATLEAST (5,9,0)
520	New(54,PL_retstack,4,OP*);	598	New(54,PL_retstack,4,OP*);
521	PL_retstack_ix = 0;	599	PL_retstack_ix = 0;
522	PL_retstack_max = 4;	600	PL_retstack_max = 4;
…		…
555	}	633	}
556		634
557	static size_t	635	static size_t
558	coro_rss (pTHX_ struct coro *coro)	636	coro_rss (pTHX_ struct coro *coro)
559	{	637	{
560	size_t rss = sizeof (coro);	638	size_t rss = sizeof (*coro);
561		639
562	if (coro->mainstack)	640	if (coro->mainstack)
563	{	641	{
		642	perl_slots tmp_slot;
		643	perl_slots *slot;
		644
564	if (coro->flags & CF_RUNNING)	645	if (coro->flags & CF_RUNNING)
565	{	646	{
		647	slot = &tmp_slot;
		648
566	#define VAR(name,type)coro->name = PL_ ## name;	649	#define VAR(name,type) slot->name = PL_ ## name;
567	# include "state.h"	650	# include "state.h"
568	#undef VAR	651	#undef VAR
569	}	652	}
		653	else
		654	slot = coro->slot;
570		655
571	rss += sizeof (coro->curstackinfo);	656	rss += sizeof (slot->curstackinfo);
572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
575	rss += coro->tmps_max * sizeof (SV *);	659	rss += slot->tmps_max * sizeof (SV *);
576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
577	rss += coro->scopestack_max * sizeof (I32);	661	rss += slot->scopestack_max * sizeof (I32);
578	rss += coro->savestack_max * sizeof (ANY);	662	rss += slot->savestack_max * sizeof (ANY);
579		663
580	#if !PERL_VERSION_ATLEAST (5,9,0)	664	#if !PERL_VERSION_ATLEAST (5,9,0)
581	rss += coro->retstack_max * sizeof (OP *);	665	rss += slot->retstack_max * sizeof (OP *);
582	#endif	666	#endif
583	}	667	}
584		668
585	return rss;	669	return rss;
586	}	670	}
587		671
588	/ 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	}
589		723
590	static void	724	static void
591	coro_setup (pTHX_ struct coro *coro)	725	coro_setup (pTHX_ struct coro *coro)
592	{	726	{
593	/*	727	/*
…		…
598	PL_runops = RUNOPS_DEFAULT;	732	PL_runops = RUNOPS_DEFAULT;
599	PL_curcop = &PL_compiling;	733	PL_curcop = &PL_compiling;
600	PL_in_eval = EVAL_NULL;	734	PL_in_eval = EVAL_NULL;
601	PL_comppad = 0;	735	PL_comppad = 0;
602	PL_curpm = 0;	736	PL_curpm = 0;
		737	PL_curpad = 0;
603	PL_localizing = 0;	738	PL_localizing = 0;
604	PL_dirty = 0;	739	PL_dirty = 0;
605	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);
606		745
607	GvSV (PL_defgv) = NEWSV (0, 0);	746	GvSV (PL_defgv) = newSV (0);
608	GvAV (PL_defgv) = coro->args; coro->args = 0;	747	GvAV (PL_defgv) = coro->args; coro->args = 0;
609	GvSV (PL_errgv) = NEWSV (0, 0);	748	GvSV (PL_errgv) = newSV (0);
610	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);
611	PL_rs = newSVsv (GvSV (irsgv));	750	PL_rs = newSVsv (GvSV (irsgv));
612		751	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
613	{
614	IO *io = newIO ();
615	PL_defoutgv = newGVgen ("Coro");
616	GvIOp(PL_defoutgv) = io;
617	IoTYPE (io) = IoTYPE_WRONLY;
618	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
619	IoFLAGS (io) \|= IOf_FLUSH;
620	}
621		752
622	{	753	{
623	dSP;	754	dSP;
624	LOGOP myop;	755	LOGOP myop;
625		756
626	Zero (&myop, 1, LOGOP);	757	Zero (&myop, 1, LOGOP);
627	myop.op_next = Nullop;	758	myop.op_next = Nullop;
628	myop.op_flags = OPf_WANT_VOID;	759	myop.op_flags = OPf_WANT_VOID;
629		760
630	PUSHMARK (SP);	761	PUSHMARK (SP);
631	XPUSHs (av_shift (GvAV (PL_defgv)));	762	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
632	PUTBACK;	763	PUTBACK;
633	PL_op = (OP *)&myop;	764	PL_op = (OP *)&myop;
634	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	765	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
635	SPAGAIN;	766	SPAGAIN;
636	}	767	}
637		768
638	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;
639	}	775	}
640		776
641	static void	777	static void
642	coro_destroy (pTHX_ struct coro *coro)	778	coro_destroy (pTHX_ struct coro *coro)
643	{	779	{
…		…
663	SvREFCNT_dec (GvSV (PL_errgv));	799	SvREFCNT_dec (GvSV (PL_errgv));
664	SvREFCNT_dec (PL_defoutgv);	800	SvREFCNT_dec (PL_defoutgv);
665	SvREFCNT_dec (PL_rs);	801	SvREFCNT_dec (PL_rs);
666	SvREFCNT_dec (GvSV (irsgv));	802	SvREFCNT_dec (GvSV (irsgv));
667		803
		804	SvREFCNT_dec (PL_diehook);
		805	SvREFCNT_dec (PL_warnhook);
		806
668	SvREFCNT_dec (coro->asp_deffh);	807	SvREFCNT_dec (coro->saved_deffh);
669	//SvREFCNT_dec (coro->throw);	808	SvREFCNT_dec (coro->throw);
670		809
671	coro_destroy_stacks (aTHX);	810	coro_destroy_stacks (aTHX);
672	}	811	}
673		812
674	static void	813	static void
675	free_coro_mortal (pTHX)	814	free_coro_mortal (pTHX)
676	{	815	{
677	if (coro_mortal)	816	if (expect_true (coro_mortal))
678	{	817	{
679	SvREFCNT_dec (coro_mortal);	818	SvREFCNT_dec (coro_mortal);
680	coro_mortal = 0;	819	coro_mortal = 0;
681	}	820	}
682	}	821	}
…		…
711	bot = PL_stack_base + cx->blk_oldsp + 1;	850	bot = PL_stack_base + cx->blk_oldsp + 1;
712	top = cx->blk_gimme == G_ARRAY ? SP + 1	851	top = cx->blk_gimme == G_ARRAY ? SP + 1
713	: cx->blk_gimme == G_SCALAR ? bot + 1	852	: cx->blk_gimme == G_SCALAR ? bot + 1
714	: bot;	853	: bot;
715		854
		855	av_extend (av, top - bot);
716	while (bot < top)	856	while (bot < top)
717	av_push (av, SvREFCNT_inc (*bot++));	857	av_push (av, SvREFCNT_inc (*bot++));
718		858
719	PL_runops = RUNOPS_DEFAULT;	859	PL_runops = RUNOPS_DEFAULT;
720	ENTER;	860	ENTER;
…		…
760	SAVETMPS;	900	SAVETMPS;
761	EXTEND (SP, 3);	901	EXTEND (SP, 3);
762	PUSHMARK (SP);	902	PUSHMARK (SP);
763	PUSHs (&PL_sv_yes);	903	PUSHs (&PL_sv_yes);
764	PUSHs (fullname);	904	PUSHs (fullname);
765	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);
766	PUTBACK;	906	PUTBACK;
767	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);
768	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);
769	SPAGAIN;	909	SPAGAIN;
770	FREETMPS;	910	FREETMPS;
…		…
806		946
807	/* 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 */
808	/* _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 */
809	/* during execution of a perl program */	949	/* during execution of a perl program */
810	static void NOINLINE	950	static void NOINLINE
811	prepare_cctx (pTHX_ coro_cctx *cctx)	951	cctx_prepare (pTHX_ coro_cctx *cctx)
812	{	952	{
813	dSP;	953	dSP;
814	LOGOP myop;	954	LOGOP myop;
815		955
816	PL_top_env = &PL_start_env;	956	PL_top_env = &PL_start_env;
…		…
834		974
835	/*	975	/*
836	* this is a _very_ stripped down perl interpreter ;)	976	* this is a _very_ stripped down perl interpreter ;)
837	*/	977	*/
838	static void	978	static void
839	coro_run (void *arg)	979	cctx_run (void *arg)
840	{	980	{
841	dTHX;	981	dTHX;
842		982
843	/* coro_run is the alternative tail of transfer(), so unlock here. */	983	/* cctx_run is the alternative tail of transfer(), so unlock here. */
844	UNLOCK;	984	UNLOCK;
845		985
846	/* we now skip the entersub that lead to transfer() */	986	/* we now skip the entersub that lead to transfer() */
847	PL_op = PL_op->op_next;	987	PL_op = PL_op->op_next;
848		988
849	/* inject a fake subroutine call to cctx_init */	989	/* inject a fake subroutine call to cctx_init */
850	prepare_cctx (aTHX_ (coro_cctx *)arg);	990	cctx_prepare (aTHX_ (coro_cctx *)arg);
851		991
852	/* 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 */
853	PL_restartop = PL_op;	993	PL_restartop = PL_op;
854	perl_run (PL_curinterp);	994	perl_run (PL_curinterp);
855		995
…		…
874	++cctx_count;	1014	++cctx_count;
875		1015
876	Newz (0, cctx, 1, coro_cctx);	1016	Newz (0, cctx, 1, coro_cctx);
877		1017
878	#if HAVE_MMAP	1018	#if HAVE_MMAP
879
880	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;
881	/* mmap supposedly does allocate-on-write for us */	1020	/* mmap supposedly does allocate-on-write for us */
882	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);
883		1022
884	if (cctx->sptr != (void *)-1)	1023	if (cctx->sptr != (void *)-1)
…		…
905	stack_start = cctx->sptr;	1044	stack_start = cctx->sptr;
906	stack_size = cctx->ssize;	1045	stack_size = cctx->ssize;
907	}	1046	}
908		1047
909	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1048	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
910	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);
911		1050
912	return cctx;	1051	return cctx;
913	}	1052	}
914		1053
915	static void	1054	static void
…		…
932	Safefree (cctx->sptr);	1071	Safefree (cctx->sptr);
933		1072
934	Safefree (cctx);	1073	Safefree (cctx);
935	}	1074	}
936		1075
		1076	/* wether this cctx should be destructed */
		1077	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1078
937	static coro_cctx *	1079	static coro_cctx *
938	cctx_get (pTHX)	1080	cctx_get (pTHX)
939	{	1081	{
940	while (cctx_first)	1082	while (expect_true (cctx_first))
941	{	1083	{
942	coro_cctx *cctx = cctx_first;	1084	coro_cctx *cctx = cctx_first;
943	cctx_first = cctx->next;	1085	cctx_first = cctx->next;
944	--cctx_idle;	1086	--cctx_idle;
945		1087
946	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1088	if (expect_true (!CCTX_EXPIRED (cctx)))
947	return cctx;	1089	return cctx;
948		1090
949	cctx_destroy (cctx);	1091	cctx_destroy (cctx);
950	}	1092	}
951		1093
…		…
954		1096
955	static void	1097	static void
956	cctx_put (coro_cctx *cctx)	1098	cctx_put (coro_cctx *cctx)
957	{	1099	{
958	/* free another cctx if overlimit */	1100	/* free another cctx if overlimit */
959	if (cctx_idle >= MAX_IDLE_CCTX)	1101	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
960	{	1102	{
961	coro_cctx *first = cctx_first;	1103	coro_cctx *first = cctx_first;
962	cctx_first = first->next;	1104	cctx_first = first->next;
963	--cctx_idle;	1105	--cctx_idle;
964		1106
…		…
970	cctx_first = cctx;	1112	cctx_first = cctx;
971	}	1113	}
972		1114
973	/ coroutine switching ***************************************************/	1115	/ coroutine switching ***************************************************/
974		1116
975	static void NOINLINE	1117	static void
976	transfer_check (pTHX_ struct coro prev, struct coro next)	1118	transfer_check (pTHX_ struct coro prev, struct coro next)
977	{	1119	{
978	if (prev != next)	1120	if (expect_true (prev != next))
979	{	1121	{
980	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1122	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
981	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");
982		1124
983	if (next->flags & CF_RUNNING)	1125	if (expect_false (next->flags & CF_RUNNING))
984	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");
985		1127
986	if (next->flags & CF_DESTROYED)	1128	if (expect_false (next->flags & CF_DESTROYED))
987	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");
988		1130
		1131	if (
		1132	#if PERL_VERSION_ATLEAST (5,9,0)
		1133	expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
		1134	#else
989	if (PL_lex_state != LEX_NOTPARSING)	1135	expect_false (PL_lex_state != LEX_NOTPARSING)
		1136	#endif
		1137	)
990	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");
991	}	1139	}
992	}	1140	}
993		1141
994	/* always use the TRANSFER macro */	1142	/* always use the TRANSFER macro */
995	static void NOINLINE	1143	static void NOINLINE
996	transfer (pTHX_ struct coro prev, struct coro next)	1144	transfer (pTHX_ struct coro prev, struct coro next)
997	{	1145	{
998	dSTACKLEVEL;	1146	dSTACKLEVEL;
		1147	static volatile int has_throw;
999		1148
1000	/* sometimes transfer is only called to set idle_sp */	1149	/* sometimes transfer is only called to set idle_sp */
1001	if (!next)	1150	if (expect_false (!next))
1002	{	1151	{
1003	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1152	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1004	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 */
1005	}	1154	}
1006	else if (prev != next)	1155	else if (expect_true (prev != next))
1007	{	1156	{
1008	coro_cctx *prev__cctx;	1157	coro_cctx *prev__cctx;
1009		1158
1010	if (prev->flags & CF_NEW)	1159	if (expect_false (prev->flags & CF_NEW))
1011	{	1160	{
1012	/* create a new empty context */	1161	/* create a new empty context */
1013	Newz (0, prev->cctx, 1, coro_cctx);	1162	Newz (0, prev->cctx, 1, coro_cctx);
1014	prev->flags &= ~CF_NEW;	1163	prev->flags &= ~CF_NEW;
1015	prev->flags \|= CF_RUNNING;	1164	prev->flags \|= CF_RUNNING;
…		…
1018	prev->flags &= ~CF_RUNNING;	1167	prev->flags &= ~CF_RUNNING;
1019	next->flags \|= CF_RUNNING;	1168	next->flags \|= CF_RUNNING;
1020		1169
1021	LOCK;	1170	LOCK;
1022		1171
		1172	/* first get rid of the old state */
		1173	save_perl (aTHX_ prev);
		1174
1023	if (next->flags & CF_NEW)	1175	if (expect_false (next->flags & CF_NEW))
1024	{	1176	{
1025	/* need to start coroutine */	1177	/* need to start coroutine */
1026	next->flags &= ~CF_NEW;	1178	next->flags &= ~CF_NEW;
1027	/* first get rid of the old state */
1028	save_perl (aTHX_ prev);
1029	/* setup coroutine call */	1179	/* setup coroutine call */
1030	coro_setup (aTHX_ next);	1180	coro_setup (aTHX_ next);
1031	}	1181	}
1032	else	1182	else
1033	{
1034	/* coroutine already started */
1035	save_perl (aTHX_ prev);
1036	load_perl (aTHX_ next);	1183	load_perl (aTHX_ next);
1037	}
1038		1184
1039	prev__cctx = prev->cctx;	1185	prev__cctx = prev->cctx;
1040		1186
1041	/* possibly "free" the cctx */	1187	/* possibly "free" the cctx */
1042	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)))
1043	{	1189	{
1044	/* 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 */
1045	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));
1046		1192
1047	prev->cctx = 0;	1193	prev->cctx = 0;
1048		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
1049	cctx_put (prev__cctx);	1201	cctx_put (prev__cctx);
1050	}	1202	}
1051		1203
1052	++next->usecount;	1204	++next->usecount;
1053		1205
1054	if (!next->cctx)	1206	if (expect_true (!next->cctx))
1055	next->cctx = cctx_get (aTHX);	1207	next->cctx = cctx_get (aTHX);
1056		1208
		1209	has_throw = !!next->throw;
		1210
1057	if (prev__cctx != next->cctx)	1211	if (expect_false (prev__cctx != next->cctx))
1058	{	1212	{
1059	prev__cctx->top_env = PL_top_env;	1213	prev__cctx->top_env = PL_top_env;
1060	PL_top_env = next->cctx->top_env;	1214	PL_top_env = next->cctx->top_env;
1061	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1215	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1062	}	1216	}
1063		1217
1064	free_coro_mortal (aTHX);	1218	free_coro_mortal (aTHX);
1065	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	}
1066	}	1233	}
1067	}	1234	}
1068		1235
1069	struct transfer_args	1236	struct transfer_args
1070	{	1237	{
…		…
1105	save_perl (aTHX_ &temp);	1272	save_perl (aTHX_ &temp);
1106	load_perl (aTHX_ coro);	1273	load_perl (aTHX_ coro);
1107		1274
1108	coro_destroy (aTHX_ coro);	1275	coro_destroy (aTHX_ coro);
1109		1276
1110	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1277	load_perl (aTHX_ &temp);
1111		1278
1112	coro->mainstack = 0;	1279	coro->slot = 0;
1113	}	1280	}
1114		1281
1115	cctx_destroy (coro->cctx);	1282	cctx_destroy (coro->cctx);
1116	SvREFCNT_dec (coro->args);	1283	SvREFCNT_dec (coro->args);
1117		1284
…		…
1185	{	1352	{
1186	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);
1187	}	1354	}
1188		1355
1189	static SV *	1356	static SV *
1190	coro_deq (pTHX_ int min_prio)	1357	coro_deq (pTHX)
1191	{	1358	{
1192	int prio = PRIO_MAX - PRIO_MIN;	1359	int prio;
1193		1360
1194	min_prio -= PRIO_MIN;
1195	if (min_prio < 0)
1196	min_prio = 0;
1197
1198	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1361	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1199	if (AvFILLp (coro_ready [prio]) >= 0)	1362	if (AvFILLp (coro_ready [prio]) >= 0)
1200	return av_shift (coro_ready [prio]);	1363	return av_shift (coro_ready [prio]);
1201		1364
1202	return 0;	1365	return 0;
1203	}	1366	}
…		…
1239	SV prev_sv, next_sv;	1402	SV prev_sv, next_sv;
1240		1403
1241	for (;;)	1404	for (;;)
1242	{	1405	{
1243	LOCK;	1406	LOCK;
1244	next_sv = coro_deq (aTHX_ PRIO_MIN);	1407	next_sv = coro_deq (aTHX);
1245		1408
1246	/* nothing to schedule: call the idle handler */	1409	/* nothing to schedule: call the idle handler */
1247	if (!next_sv)	1410	if (expect_false (!next_sv))
1248	{	1411	{
1249	dSP;	1412	dSP;
1250	UNLOCK;	1413	UNLOCK;
1251		1414
1252	ENTER;	1415	ENTER;
1253	SAVETMPS;	1416	SAVETMPS;
1254		1417
1255	PUSHMARK (SP);	1418	PUSHMARK (SP);
1256	PUTBACK;	1419	PUTBACK;
1257	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1420	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1421	SPAGAIN;
1258		1422
1259	FREETMPS;	1423	FREETMPS;
1260	LEAVE;	1424	LEAVE;
1261	continue;	1425	continue;
1262	}	1426	}
1263		1427
1264	ta->next = SvSTATE (next_sv);	1428	ta->next = SvSTATE (next_sv);
1265		1429
1266	/* cannot transfer to destroyed coros, skip and look for next */	1430	/* cannot transfer to destroyed coros, skip and look for next */
1267	if (ta->next->flags & CF_DESTROYED)	1431	if (expect_false (ta->next->flags & CF_DESTROYED))
1268	{	1432	{
1269	UNLOCK;	1433	UNLOCK;
1270	SvREFCNT_dec (next_sv);	1434	SvREFCNT_dec (next_sv);
1271	/* coro_nready is already taken care of by destroy */	1435	/* coro_nready is already taken care of by destroy */
1272	continue;	1436	continue;
…		…
1328	dTHX;	1492	dTHX;
1329	struct transfer_args ta;	1493	struct transfer_args ta;
1330		1494
1331	prepare_cede (aTHX_ &ta);	1495	prepare_cede (aTHX_ &ta);
1332		1496
1333	if (ta.prev != ta.next)	1497	if (expect_true (ta.prev != ta.next))
1334	{	1498	{
1335	TRANSFER (ta);	1499	TRANSFER (ta);
1336	return 1;	1500	return 1;
1337	}	1501	}
1338	else	1502	else
…		…
1374	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1538	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1375		1539
1376	if (coro->flags & CF_RUNNING)	1540	if (coro->flags & CF_RUNNING)
1377	PL_runops = RUNOPS_DEFAULT;	1541	PL_runops = RUNOPS_DEFAULT;
1378	else	1542	else
1379	coro->runops = RUNOPS_DEFAULT;	1543	coro->slot->runops = RUNOPS_DEFAULT;
1380	}	1544	}
1381	}	1545	}
1382		1546
1383	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1547	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1384		1548
…		…
1389	#ifdef USE_ITHREADS	1553	#ifdef USE_ITHREADS
1390	MUTEX_INIT (&coro_mutex);	1554	MUTEX_INIT (&coro_mutex);
1391	#endif	1555	#endif
1392	BOOT_PAGESIZE;	1556	BOOT_PAGESIZE;
1393		1557
1394	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));
1395		1569
1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1570	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1397		1571
1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1572	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1573	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1405		1579
1406	while (main_top_env->je_prev)	1580	while (main_top_env->je_prev)
1407	main_top_env = main_top_env->je_prev;	1581	main_top_env = main_top_env->je_prev;
1408		1582
1409	coroapi.ver = CORO_API_VERSION;	1583	coroapi.ver = CORO_API_VERSION;
		1584	coroapi.rev = CORO_API_REVISION;
1410	coroapi.transfer = api_transfer;	1585	coroapi.transfer = api_transfer;
1411		1586
1412	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1587	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1413	}	1588	}
1414		1589
1415	SV *	1590	SV *
1416	new (char *klass, ...)	1591	new (char *klass, ...)
1417	CODE:	1592	CODE:
1418	{	1593	{
1419	struct coro *coro;	1594	struct coro *coro;
		1595	MAGIC *mg;
1420	HV *hv;	1596	HV *hv;
1421	int i;	1597	int i;
1422		1598
1423	Newz (0, coro, 1, struct coro);	1599	Newz (0, coro, 1, struct coro);
1424	coro->args = newAV ();	1600	coro->args = newAV ();
…		…
1427	if (coro_first) coro_first->prev = coro;	1603	if (coro_first) coro_first->prev = coro;
1428	coro->next = coro_first;	1604	coro->next = coro_first;
1429	coro_first = coro;	1605	coro_first = coro;
1430		1606
1431	coro->hv = hv = newHV ();	1607	coro->hv = hv = newHV ();
1432	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;
1433	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1610	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1434		1611
		1612	av_extend (coro->args, items - 1);
1435	for (i = 1; i < items; i++)	1613	for (i = 1; i < items; i++)
1436	av_push (coro->args, newSVsv (ST (i)));	1614	av_push (coro->args, newSVsv (ST (i)));
1437	}	1615	}
1438	OUTPUT:	1616	OUTPUT:
1439	RETVAL	1617	RETVAL
…		…
1450	Coro::cede_notself = 4	1628	Coro::cede_notself = 4
1451	CODE:	1629	CODE:
1452	{	1630	{
1453	struct transfer_args ta;	1631	struct transfer_args ta;
1454		1632
		1633	PUTBACK;
1455	switch (ix)	1634	switch (ix)
1456	{	1635	{
1457	case 0:	1636	case 0:
1458	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1637	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1459	ta.next = 0;	1638	ta.next = 0;
…		…
1478	if (!prepare_cede_notself (aTHX_ &ta))	1657	if (!prepare_cede_notself (aTHX_ &ta))
1479	XSRETURN_EMPTY;	1658	XSRETURN_EMPTY;
1480		1659
1481	break;	1660	break;
1482	}	1661	}
		1662	SPAGAIN;
1483		1663
1484	BARRIER;	1664	BARRIER;
		1665	PUTBACK;
1485	TRANSFER (ta);	1666	TRANSFER (ta);
1486		1667	SPAGAIN; /* might be the sp of a different coroutine now */
1487	if (GIMME_V != G_VOID && ta.next != ta.prev)	1668	/* be extra careful not to ever do anything after TRANSFER */
1488	XSRETURN_YES;
1489	}	1669	}
1490		1670
1491	bool	1671	bool
1492	_destroy (SV *coro_sv)	1672	_destroy (SV *coro_sv)
1493	CODE:	1673	CODE:
…		…
1542	CODE:	1722	CODE:
1543	{	1723	{
1544	if (coro->mainstack)	1724	if (coro->mainstack)
1545	{	1725	{
1546	struct coro temp;	1726	struct coro temp;
1547	Zero (&temp, 1, struct coro);
1548		1727
1549	if (!(coro->flags & CF_RUNNING))	1728	if (!(coro->flags & CF_RUNNING))
1550	{	1729	{
		1730	PUTBACK;
1551	save_perl (aTHX_ &temp);	1731	save_perl (aTHX_ &temp);
1552	load_perl (aTHX_ coro);	1732	load_perl (aTHX_ coro);
1553	}	1733	}
1554		1734
1555	{	1735	{
1556	dSP;	1736	dSP;
1557	ENTER;	1737	ENTER;
1558	SAVETMPS;	1738	SAVETMPS;
		1739	PUTBACK;
		1740	PUSHSTACK;
1559	PUSHMARK (SP);	1741	PUSHMARK (SP);
1560	PUTBACK;	1742
1561	if (ix)	1743	if (ix)
1562	eval_sv (coderef, 0);	1744	eval_sv (coderef, 0);
1563	else	1745	else
1564	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;
1565	SPAGAIN;	1749	SPAGAIN;
1566	FREETMPS;	1750	FREETMPS;
1567	LEAVE;	1751	LEAVE;
1568	PUTBACK;	1752	PUTBACK;
1569	}	1753	}
1570		1754
1571	if (!(coro->flags & CF_RUNNING))	1755	if (!(coro->flags & CF_RUNNING))
1572	{	1756	{
1573	save_perl (aTHX_ coro);	1757	save_perl (aTHX_ coro);
1574	load_perl (aTHX_ &temp);	1758	load_perl (aTHX_ &temp);
		1759	SPAGAIN;
1575	}	1760	}
1576	}	1761	}
1577	}	1762	}
1578		1763
1579	SV *	1764	SV *
…		…
1627		1812
1628	BOOT:	1813	BOOT:
1629	{	1814	{
1630	int i;	1815	int i;
1631		1816
1632	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1817	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1633	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1818	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1634	av_async_pool = get_av ("Coro::async_pool", TRUE);	1819	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1635		1820
1636	coro_current = get_sv ("Coro::current", FALSE);	1821	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1637	SvREADONLY_on (coro_current);	1822	SvREADONLY_on (coro_current);
1638		1823
1639	coro_stash = gv_stashpv ("Coro", TRUE);	1824	coro_stash = gv_stashpv ("Coro", TRUE);
1640		1825
1641	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1826	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1642	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1827	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1643	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1828	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1644	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1829	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1647		1832
1648	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1833	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1649	coro_ready[i] = newAV ();	1834	coro_ready[i] = newAV ();
1650		1835
1651	{	1836	{
1652	SV *sv = perl_get_sv("Coro::API", 1);	1837	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1838	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1653		1839
1654	coroapi.schedule = api_schedule;	1840	coroapi.schedule = api_schedule;
1655	coroapi.cede = api_cede;	1841	coroapi.cede = api_cede;
1656	coroapi.cede_notself = api_cede_notself;	1842	coroapi.cede_notself = api_cede_notself;
1657	coroapi.ready = api_ready;	1843	coroapi.ready = api_ready;
…		…
1708	CODE:	1894	CODE:
1709	RETVAL = coro_nready;	1895	RETVAL = coro_nready;
1710	OUTPUT:	1896	OUTPUT:
1711	RETVAL	1897	RETVAL
1712		1898
		1899	void
		1900	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1901	PROTOTYPE: $;$
		1902	CODE:
		1903	SvREFCNT_dec (self->throw);
		1904	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1905
1713	# for async_pool speedup	1906	# for async_pool speedup
1714	void	1907	void
1715	_pool_1 (SV *cb)	1908	_pool_1 (SV *cb)
1716	CODE:	1909	CODE:
1717	{	1910	{
…		…
1721	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1914	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1722	AV *invoke_av;	1915	AV *invoke_av;
1723	int i, len;	1916	int i, len;
1724		1917
1725	if (!invoke)	1918	if (!invoke)
		1919	{
		1920	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1726	croak ("\3terminate\2\n");	1921	croak ("\3async_pool terminate\2\n");
		1922	}
1727		1923
1728	SvREFCNT_dec (coro->asp_deffh);	1924	SvREFCNT_dec (coro->saved_deffh);
1729	coro->asp_deffh = SvREFCNT_inc (PL_defoutgv);	1925	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1730		1926
1731	hv_store (hv, "desc", sizeof ("desc") - 1,	1927	hv_store (hv, "desc", sizeof ("desc") - 1,
1732	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1928	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1733		1929
1734	invoke_av = (AV *)SvRV (invoke);	1930	invoke_av = (AV *)SvRV (invoke);
…		…
1752	{	1948	{
1753	struct coro *coro = SvSTATE (coro_current);	1949	struct coro *coro = SvSTATE (coro_current);
1754		1950
1755	sv_setsv (cb, &PL_sv_undef);	1951	sv_setsv (cb, &PL_sv_undef);
1756		1952
1757	SvREFCNT_dec (PL_defoutgv); PL_defoutgv = coro->asp_deffh;	1953	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1758	coro->asp_deffh = 0;	1954	coro->saved_deffh = 0;
1759		1955
1760	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1956	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1761	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1957	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1958	{
		1959	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1762	croak ("\3terminate\2\n");	1960	croak ("\3async_pool terminate\2\n");
		1961	}
1763		1962
1764	av_clear (GvAV (PL_defgv));	1963	av_clear (GvAV (PL_defgv));
1765	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1964	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1766	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1965	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1767		1966

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Comparing Coro/Coro/State.xs (file contents): Revision 1.182 by root, Wed Oct 3 18:37:48 2007 UTC vs. Revision 1.223 by root, Wed Feb 13 15:46:00 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.182 by root, Wed Oct 3 18:37:48 2007 UTC vs.
Revision 1.223 by root, Wed Feb 13 15:46:00 2008 UTC