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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.175 by root, Sun Sep 30 13:43:45 2007 UTC vs.
Revision 1.232 by root, Thu Apr 24 12:40:38 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15
		16	#ifdef WIN32
		17	# undef setjmp
		18	# undef longjmp
		19	# undef _exit
		20	# define setjmp _setjmp // deep magic, don't ask
		21	#else
		22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
14		24
15	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
16	# include <unistd.h>	26	# include <unistd.h>
17	# include <sys/mman.h>	27	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
70	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
72	# endif	82	# endif
73	#endif	83	#endif
74		84
		85	/* 5.8.8 */
		86	#ifndef GV_NOTQUAL
		87	# define GV_NOTQUAL 0
		88	#endif
		89	#ifndef newSV
		90	# define newSV(l) NEWSV(0,l)
		91	#endif
		92
		93	/* 5.11 */
		94	#ifndef CxHASARGS
		95	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		96	#endif
		97
75	/* 5.8.7 */	98	/* 5.8.7 */
76	#ifndef SvRV_set	99	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	101	#endif
79		102
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	121	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		122
100	#if __GNUC__ >= 3	123	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	124	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	125	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		126	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	127	#else
104	# define attribute(x)	128	# define attribute(x)
105	# define BARRIER	129	# define BARRIER
		130	# define expect(expr,value) (expr)
106	#endif	131	#endif
		132
		133	#define expect_false(expr) expect ((expr) != 0, 0)
		134	#define expect_true(expr) expect ((expr) != 0, 1)
107		135
108	#define NOINLINE attribute ((noinline))	136	#define NOINLINE attribute ((noinline))
109		137
110	#include "CoroAPI.h"	138	#include "CoroAPI.h"
111		139
…		…
130	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
131	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
132	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
		164
		165	static GV irsgv; / $/ */
		166	static GV stdoutgv; / STDOUT /
		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
		169	static HV hv_sig; / %SIG */
136		170
137	/* async_pool helper stuff */	171	/* async_pool helper stuff */
138	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
139	static SV *sv_pool_size;	173	static SV *sv_pool_size;
140	static AV *av_async_pool;	174	static AV *av_async_pool;
…		…
176	CF_READY = 0x0002, /* coroutine is ready */	210	CF_READY = 0x0002, /* coroutine is ready */
177	CF_NEW = 0x0004, /* has never been switched to */	211	CF_NEW = 0x0004, /* has never been switched to */
178	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	212	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
179	};	213	};
180		214
		215	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		216	typedef struct {
		217	SV *defsv;
		218	AV *defav;
		219	SV *errsv;
		220	SV *irsgv;
		221	#define VAR(name,type) type name;
		222	# include "state.h"
		223	#undef VAR
		224	} perl_slots;
		225
		226	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		227
181	/* this is a structure representing a perl-level coroutine */	228	/* this is a structure representing a perl-level coroutine */
182	struct coro {	229	struct coro {
183	/* the c coroutine allocated to this perl coroutine, if any */	230	/* the c coroutine allocated to this perl coroutine, if any */
184	coro_cctx *cctx;	231	coro_cctx *cctx;
185		232
		233	/* process data */
		234	AV *mainstack;
		235	perl_slots slot; / basically the saved sp */
		236
186	/* data associated with this coroutine (initial args) */	237	AV args; / data associated with this coroutine (initial args) */
187	AV *args;	238	int refcnt; /* coroutines are refcounted, yes */
188	int refcnt;
189	int save; /* CORO_SAVE flags */
190	int flags; /* CF_ flags */	239	int flags; /* CF_ flags */
191		240	HV hv; / the perl hash associated with this coro, if any */
192	/* optionally saved, might be zero */
193	AV defav; / @_ */
194	SV defsv; / $_ */
195	SV errsv; / $@ */
196	GV deffh; / default filehandle */
197	SV irssv; / $/ */
198	SV irssv_sv; / real $/ cache */
199
200	#define VAR(name,type) type name;
201	# include "state.h"
202	#undef VAR
203		241
204	/* statistics */	242	/* statistics */
205	int usecount; /* number of switches to this coro */	243	int usecount; /* number of transfers to this coro */
206		244
207	/* coro process data */	245	/* coro process data */
208	int prio;	246	int prio;
		247	SV throw; / exception to be thrown */
		248
		249	/* async_pool */
		250	SV *saved_deffh;
209		251
210	/* linked list */	252	/* linked list */
211	struct coro next, prev;	253	struct coro next, prev;
212	HV hv; / the perl hash associated with this coro, if any */
213	};	254	};
214		255
215	typedef struct coro *Coro__State;	256	typedef struct coro *Coro__State;
216	typedef struct coro *Coro__State_or_hashref;	257	typedef struct coro *Coro__State_or_hashref;
217		258
…		…
230	static int coro_nready;	271	static int coro_nready;
231	static struct coro *coro_first;	272	static struct coro *coro_first;
232		273
233	/ lowlevel stuff ********************************************************/	274	/ lowlevel stuff ********************************************************/
234		275
		276	static SV *
		277	coro_get_sv (pTHX_ const char *name, int create)
		278	{
		279	#if PERL_VERSION_ATLEAST (5,10,0)
		280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		281	get_sv (name, create);
		282	#endif
		283	return get_sv (name, create);
		284	}
		285
		286	static AV *
		287	coro_get_av (pTHX_ const char *name, int create)
		288	{
		289	#if PERL_VERSION_ATLEAST (5,10,0)
		290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		291	get_av (name, create);
		292	#endif
		293	return get_av (name, create);
		294	}
		295
		296	static HV *
		297	coro_get_hv (pTHX_ const char *name, int create)
		298	{
		299	#if PERL_VERSION_ATLEAST (5,10,0)
		300	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		301	get_hv (name, create);
		302	#endif
		303	return get_hv (name, create);
		304	}
		305
235	static AV *	306	static AV *
236	coro_clone_padlist (pTHX_ CV *cv)	307	coro_clone_padlist (pTHX_ CV *cv)
237	{	308	{
238	AV *padlist = CvPADLIST (cv);	309	AV *padlist = CvPADLIST (cv);
239	AV newpadlist, newpad;	310	AV newpadlist, newpad;
240		311
241	newpadlist = newAV ();	312	newpadlist = newAV ();
242	AvREAL_off (newpadlist);	313	AvREAL_off (newpadlist);
243	#if PERL_VERSION_ATLEAST (5,9,0)	314	#if PERL_VERSION_ATLEAST (5,10,0)
244	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	315	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
245	#else	316	#else
246	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	317	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
247	#endif	318	#endif
248	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	319	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
286		357
287	/* casting is fun. */	358	/* casting is fun. */
288	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	359	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
289	free_padlist (aTHX_ padlist);	360	free_padlist (aTHX_ padlist);
290		361
291	SvREFCNT_dec (av);
292
293	return 0;	362	return 0;
294	}	363	}
295		364
296	#define PERL_MAGIC_coro PERL_MAGIC_ext	365	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		366	#define CORO_MAGIC_type_state PERL_MAGIC_ext
297		367
298	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	368	static MGVTBL coro_cv_vtbl = {
		369	0, 0, 0, 0,
		370	coro_cv_free
		371	};
299		372
300	#define CORO_MAGIC(cv) \	373	#define CORO_MAGIC(sv,type) \
301	SvMAGIC (cv) \	374	SvMAGIC (sv) \
302	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	375	? SvMAGIC (sv)->mg_type == type \
303	? SvMAGIC (cv) \	376	? SvMAGIC (sv) \
304	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	377	: mg_find (sv, type) \
305	: 0	378	: 0
		379
		380	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		381	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
306		382
307	static struct coro *	383	static struct coro *
308	SvSTATE_ (pTHX_ SV *coro)	384	SvSTATE_ (pTHX_ SV *coro)
309	{	385	{
310	HV *stash;	386	HV *stash;
311	MAGIC *mg;	387	MAGIC *mg;
312		388
313	if (SvROK (coro))	389	if (SvROK (coro))
314	coro = SvRV (coro);	390	coro = SvRV (coro);
315		391
316	if (SvTYPE (coro) != SVt_PVHV)	392	if (expect_false (SvTYPE (coro) != SVt_PVHV))
317	croak ("Coro::State object required");	393	croak ("Coro::State object required");
318		394
319	stash = SvSTASH (coro);	395	stash = SvSTASH (coro);
320	if (stash != coro_stash && stash != coro_state_stash)	396	if (expect_false (stash != coro_stash && stash != coro_state_stash))
321	{	397	{
322	/* very slow, but rare, check */	398	/* very slow, but rare, check */
323	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	399	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
324	croak ("Coro::State object required");	400	croak ("Coro::State object required");
325	}	401	}
326		402
327	mg = CORO_MAGIC (coro);	403	mg = CORO_MAGIC_state (coro);
328	return (struct coro *)mg->mg_ptr;	404	return (struct coro *)mg->mg_ptr;
329	}	405	}
330		406
331	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	407	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
332		408
333	/* the next two functions merely cache the padlists */	409	/* the next two functions merely cache the padlists */
334	static void	410	static void
335	get_padlist (pTHX_ CV *cv)	411	get_padlist (pTHX_ CV *cv)
336	{	412	{
337	MAGIC *mg = CORO_MAGIC (cv);	413	MAGIC *mg = CORO_MAGIC_cv (cv);
338	AV *av;	414	AV *av;
339		415
340	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	416	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
341	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	417	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
342	else	418	else
343	{	419	{
344	#if CORO_PREFER_PERL_FUNCTIONS	420	#if CORO_PREFER_PERL_FUNCTIONS
345	/* this is probably cleaner, but also slower? */	421	/* this is probably cleaner, but also slower? */
…		…
354	}	430	}
355		431
356	static void	432	static void
357	put_padlist (pTHX_ CV *cv)	433	put_padlist (pTHX_ CV *cv)
358	{	434	{
359	MAGIC *mg = CORO_MAGIC (cv);	435	MAGIC *mg = CORO_MAGIC_cv (cv);
360	AV *av;	436	AV *av;
361		437
362	if (!mg)	438	if (expect_false (!mg))
363	{	439	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
364	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
365	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
366	mg->mg_virtual = &vtbl_coro;
367	mg->mg_obj = (SV *)newAV ();
368	}
369		440
370	av = (AV *)mg->mg_obj;	441	av = (AV *)mg->mg_obj;
371		442
372	if (AvFILLp (av) >= AvMAX (av))	443	if (expect_false (AvFILLp (av) >= AvMAX (av)))
373	av_extend (av, AvMAX (av) + 1);	444	av_extend (av, AvMAX (av) + 1);
374		445
375	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	446	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
376	}	447	}
377		448
378	/ load & save, init *****************************************************/	449	/ load & save, init *****************************************************/
379
380	#define SB do {
381	#define SE } while (0)
382
383	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
384		450
385	static void	451	static void
386	load_perl (pTHX_ Coro__State c)	452	load_perl (pTHX_ Coro__State c)
387	{	453	{
		454	perl_slots *slot = c->slot;
		455	c->slot = 0;
		456
		457	PL_mainstack = c->mainstack;
		458
		459	GvSV (PL_defgv) = slot->defsv;
		460	GvAV (PL_defgv) = slot->defav;
		461	GvSV (PL_errgv) = slot->errsv;
		462	GvSV (irsgv) = slot->irsgv;
		463
388	#define VAR(name,type) PL_ ## name = c->name;	464	#define VAR(name,type) PL_ ## name = slot->name;
389	# include "state.h"	465	# include "state.h"
390	#undef VAR	466	#undef VAR
391
392	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
393	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
394	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
395	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
396
397	if (c->irssv)
398	{
399	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
400	{
401	SvREFCNT_dec (c->irssv);
402	c->irssv = 0;
403	}
404	else
405	{
406	REPLACE_SV (PL_rs, c->irssv);
407	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
408	sv_setsv (c->irssv_sv, PL_rs);
409	}
410	}
411		467
412	{	468	{
413	dSP;	469	dSP;
		470
414	CV *cv;	471	CV *cv;
415		472
416	/* now do the ugly restore mess */	473	/* now do the ugly restore mess */
417	while ((cv = (CV *)POPs))	474	while (expect_true (cv = (CV *)POPs))
418	{	475	{
419	put_padlist (aTHX_ cv); /* mark this padlist as available */	476	put_padlist (aTHX_ cv); /* mark this padlist as available */
420	CvDEPTH (cv) = PTR2IV (POPs);	477	CvDEPTH (cv) = PTR2IV (POPs);
421	CvPADLIST (cv) = (AV *)POPs;	478	CvPADLIST (cv) = (AV *)POPs;
422	}	479	}
…		…
441		498
442	XPUSHs (Nullsv);	499	XPUSHs (Nullsv);
443	/* this loop was inspired by pp_caller */	500	/* this loop was inspired by pp_caller */
444	for (;;)	501	for (;;)
445	{	502	{
446	while (cxix >= 0)	503	while (expect_true (cxix >= 0))
447	{	504	{
448	PERL_CONTEXT *cx = &ccstk[cxix--];	505	PERL_CONTEXT *cx = &ccstk[cxix--];
449		506
450	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	507	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
451	{	508	{
452	CV *cv = cx->blk_sub.cv;	509	CV *cv = cx->blk_sub.cv;
453		510
454	if (CvDEPTH (cv))	511	if (expect_true (CvDEPTH (cv)))
455	{	512	{
456	EXTEND (SP, 3);	513	EXTEND (SP, 3);
457	PUSHs ((SV *)CvPADLIST (cv));	514	PUSHs ((SV *)CvPADLIST (cv));
458	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	515	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
459	PUSHs ((SV *)cv);	516	PUSHs ((SV *)cv);
…		…
462	get_padlist (aTHX_ cv);	519	get_padlist (aTHX_ cv);
463	}	520	}
464	}	521	}
465	}	522	}
466		523
467	if (top_si->si_type == PERLSI_MAIN)	524	if (expect_true (top_si->si_type == PERLSI_MAIN))
468	break;	525	break;
469		526
470	top_si = top_si->si_prev;	527	top_si = top_si->si_prev;
471	ccstk = top_si->si_cxstack;	528	ccstk = top_si->si_cxstack;
472	cxix = top_si->si_cxix;	529	cxix = top_si->si_cxix;
473	}	530	}
474		531
475	PUTBACK;	532	PUTBACK;
476	}	533	}
477		534
478	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	535	/* allocate some space on the context stack for our purposes */
479	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	536	/* we manually unroll here, as usually 2 slots is enough */
480	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	537	if (SLOT_COUNT >= 1) CXINC;
481	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	538	if (SLOT_COUNT >= 2) CXINC;
482	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	539	if (SLOT_COUNT >= 3) CXINC;
		540	{
		541	int i;
		542	for (i = 3; i < SLOT_COUNT; ++i)
		543	CXINC;
		544	}
		545	cxstack_ix -= SLOT_COUNT; /* undo allocation */
483		546
		547	c->mainstack = PL_mainstack;
		548
		549	{
		550	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		551
		552	slot->defav = GvAV (PL_defgv);
		553	slot->defsv = DEFSV;
		554	slot->errsv = ERRSV;
		555	slot->irsgv = GvSV (irsgv);
		556
484	#define VAR(name,type)c->name = PL_ ## name;	557	#define VAR(name,type) slot->name = PL_ ## name;
485	# include "state.h"	558	# include "state.h"
486	#undef VAR	559	#undef VAR
		560	}
487	}	561	}
488		562
489	/*	563	/*
490	* allocate various perl stacks. This is an exact copy	564	* allocate various perl stacks. This is an exact copy
491	* of perl.c:init_stacks, except that it uses less memory	565	* of perl.c:init_stacks, except that it uses less memory
…		…
496	# define coro_init_stacks init_stacks	570	# define coro_init_stacks init_stacks
497	#else	571	#else
498	static void	572	static void
499	coro_init_stacks (pTHX)	573	coro_init_stacks (pTHX)
500	{	574	{
501	PL_curstackinfo = new_stackinfo(64, 6);	575	PL_curstackinfo = new_stackinfo(32, 8);
502	PL_curstackinfo->si_type = PERLSI_MAIN;	576	PL_curstackinfo->si_type = PERLSI_MAIN;
503	PL_curstack = PL_curstackinfo->si_stack;	577	PL_curstack = PL_curstackinfo->si_stack;
504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	578	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
505		579
506	PL_stack_base = AvARRAY(PL_curstack);	580	PL_stack_base = AvARRAY(PL_curstack);
507	PL_stack_sp = PL_stack_base;	581	PL_stack_sp = PL_stack_base;
508	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	582	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
509		583
510	New(50,PL_tmps_stack,64,SV*);	584	New(50,PL_tmps_stack,32,SV*);
511	PL_tmps_floor = -1;	585	PL_tmps_floor = -1;
512	PL_tmps_ix = -1;	586	PL_tmps_ix = -1;
513	PL_tmps_max = 64;	587	PL_tmps_max = 32;
514		588
515	New(54,PL_markstack,16,I32);	589	New(54,PL_markstack,16,I32);
516	PL_markstack_ptr = PL_markstack;	590	PL_markstack_ptr = PL_markstack;
517	PL_markstack_max = PL_markstack + 16;	591	PL_markstack_max = PL_markstack + 16;
518		592
519	#ifdef SET_MARK_OFFSET	593	#ifdef SET_MARK_OFFSET
520	SET_MARK_OFFSET;	594	SET_MARK_OFFSET;
521	#endif	595	#endif
522		596
523	New(54,PL_scopestack,16,I32);	597	New(54,PL_scopestack,8,I32);
524	PL_scopestack_ix = 0;	598	PL_scopestack_ix = 0;
525	PL_scopestack_max = 16;	599	PL_scopestack_max = 8;
526		600
527	New(54,PL_savestack,64,ANY);	601	New(54,PL_savestack,24,ANY);
528	PL_savestack_ix = 0;	602	PL_savestack_ix = 0;
529	PL_savestack_max = 64;	603	PL_savestack_max = 24;
530		604
531	#if !PERL_VERSION_ATLEAST (5,9,0)	605	#if !PERL_VERSION_ATLEAST (5,10,0)
532	New(54,PL_retstack,4,OP*);	606	New(54,PL_retstack,4,OP*);
533	PL_retstack_ix = 0;	607	PL_retstack_ix = 0;
534	PL_retstack_max = 4;	608	PL_retstack_max = 4;
535	#endif	609	#endif
536	}	610	}
…		…
540	* destroy the stacks, the callchain etc...	614	* destroy the stacks, the callchain etc...
541	*/	615	*/
542	static void	616	static void
543	coro_destroy_stacks (pTHX)	617	coro_destroy_stacks (pTHX)
544	{	618	{
545	if (!IN_DESTRUCT)
546	{
547	/* restore all saved variables and stuff */
548	LEAVE_SCOPE (0);
549	assert (PL_tmps_floor == -1);
550
551	/* free all temporaries */
552	FREETMPS;
553	assert (PL_tmps_ix == -1);
554
555	/* unwind all extra stacks */
556	POPSTACK_TO (PL_mainstack);
557
558	/* unwind main stack */
559	dounwind (-1);
560	}
561
562	while (PL_curstackinfo->si_next)	619	while (PL_curstackinfo->si_next)
563	PL_curstackinfo = PL_curstackinfo->si_next;	620	PL_curstackinfo = PL_curstackinfo->si_next;
564		621
565	while (PL_curstackinfo)	622	while (PL_curstackinfo)
566	{	623	{
…		…
576		633
577	Safefree (PL_tmps_stack);	634	Safefree (PL_tmps_stack);
578	Safefree (PL_markstack);	635	Safefree (PL_markstack);
579	Safefree (PL_scopestack);	636	Safefree (PL_scopestack);
580	Safefree (PL_savestack);	637	Safefree (PL_savestack);
581	#if !PERL_VERSION_ATLEAST (5,9,0)	638	#if !PERL_VERSION_ATLEAST (5,10,0)
582	Safefree (PL_retstack);	639	Safefree (PL_retstack);
583	#endif	640	#endif
584	}	641	}
585		642
586	static size_t	643	static size_t
587	coro_rss (pTHX_ struct coro *coro)	644	coro_rss (pTHX_ struct coro *coro)
588	{	645	{
589	size_t rss = sizeof (coro);	646	size_t rss = sizeof (*coro);
590		647
591	if (coro->mainstack)	648	if (coro->mainstack)
592	{	649	{
		650	perl_slots tmp_slot;
		651	perl_slots *slot;
		652
593	if (coro->flags & CF_RUNNING)	653	if (coro->flags & CF_RUNNING)
594	{	654	{
		655	slot = &tmp_slot;
		656
595	#define VAR(name,type)coro->name = PL_ ## name;	657	#define VAR(name,type) slot->name = PL_ ## name;
596	# include "state.h"	658	# include "state.h"
597	#undef VAR	659	#undef VAR
598	}	660	}
		661	else
		662	slot = coro->slot;
599		663
600	rss += sizeof (coro->curstackinfo);	664	rss += sizeof (slot->curstackinfo);
601	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
602	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	665	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
603	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	666	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
604	rss += coro->tmps_max * sizeof (SV *);	667	rss += slot->tmps_max * sizeof (SV *);
605	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	668	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
606	rss += coro->scopestack_max * sizeof (I32);	669	rss += slot->scopestack_max * sizeof (I32);
607	rss += coro->savestack_max * sizeof (ANY);	670	rss += slot->savestack_max * sizeof (ANY);
608		671
609	#if !PERL_VERSION_ATLEAST (5,9,0)	672	#if !PERL_VERSION_ATLEAST (5,10,0)
610	rss += coro->retstack_max * sizeof (OP *);	673	rss += slot->retstack_max * sizeof (OP *);
611	#endif	674	#endif
612	}	675	}
613		676
614	return rss;	677	return rss;
615	}	678	}
616		679
617	/ coroutine stack handling **********************************************/	680	/ coroutine stack handling **********************************************/
618		681
		682	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		683	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		684
		685	/*
		686	* This overrides the default magic get method of %SIG elements.
		687	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		688	* and instead of tryign to save and restore the hash elements, we just provide
		689	* readback here.
		690	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		691	* not expecting this to actually change the hook. This is a potential problem
		692	* when a schedule happens then, but we ignore this.
		693	*/
		694	static int
		695	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		696	{
		697	const char *s = MgPV_nolen_const (mg);
		698
		699	if (*s == '_')
		700	{
		701	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		702	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		703	}
		704
		705	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		706	}
		707
		708	static int
		709	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		710	{
		711	const char *s = MgPV_nolen_const (mg);
		712
		713	if (*s == '_')
		714	{
		715	SV **svp = 0;
		716
		717	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		718	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		719
		720	if (svp)
		721	{
		722	SV old = svp;
		723	*svp = newSVsv (sv);
		724	SvREFCNT_dec (old);
		725	return 0;
		726	}
		727	}
		728
		729	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		730	}
		731
619	static void	732	static void
620	setup_coro (pTHX_ struct coro *coro)	733	coro_setup (pTHX_ struct coro *coro)
621	{	734	{
622	/*	735	/*
623	* emulate part of the perl startup here.	736	* emulate part of the perl startup here.
624	*/	737	*/
625	coro_init_stacks (aTHX);	738	coro_init_stacks (aTHX);
…		…
627	PL_runops = RUNOPS_DEFAULT;	740	PL_runops = RUNOPS_DEFAULT;
628	PL_curcop = &PL_compiling;	741	PL_curcop = &PL_compiling;
629	PL_in_eval = EVAL_NULL;	742	PL_in_eval = EVAL_NULL;
630	PL_comppad = 0;	743	PL_comppad = 0;
631	PL_curpm = 0;	744	PL_curpm = 0;
		745	PL_curpad = 0;
632	PL_localizing = 0;	746	PL_localizing = 0;
633	PL_dirty = 0;	747	PL_dirty = 0;
634	PL_restartop = 0;	748	PL_restartop = 0;
		749	#if PERL_VERSION_ATLEAST (5,10,0)
		750	PL_parser = 0;
		751	#endif
		752
		753	/* recreate the die/warn hooks */
		754	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		755	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
		756
		757	GvSV (PL_defgv) = newSV (0);
		758	GvAV (PL_defgv) = coro->args; coro->args = 0;
		759	GvSV (PL_errgv) = newSV (0);
		760	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		761	PL_rs = newSVsv (GvSV (irsgv));
		762	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
635		763
636	{	764	{
637	dSP;	765	dSP;
638	LOGOP myop;	766	LOGOP myop;
639		767
640	SvREFCNT_dec (GvAV (PL_defgv));
641	GvAV (PL_defgv) = coro->args; coro->args = 0;
642
643	Zero (&myop, 1, LOGOP);	768	Zero (&myop, 1, LOGOP);
644	myop.op_next = Nullop;	769	myop.op_next = Nullop;
645	myop.op_flags = OPf_WANT_VOID;	770	myop.op_flags = OPf_WANT_VOID;
646		771
647	PUSHMARK (SP);	772	PUSHMARK (SP);
648	XPUSHs (av_shift (GvAV (PL_defgv)));	773	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
649	PUTBACK;	774	PUTBACK;
650	PL_op = (OP *)&myop;	775	PL_op = (OP *)&myop;
651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	776	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
652	SPAGAIN;	777	SPAGAIN;
653	}	778	}
654		779
655	ENTER; /* necessary e.g. for dounwind */	780	/* this newly created coroutine might be run on an existing cctx which most
		781	* likely was suspended in set_stacklevel, called from entersub.
		782	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		783	* so we ENTER here for symmetry
		784	*/
		785	ENTER;
		786	}
		787
		788	static void
		789	coro_destroy (pTHX_ struct coro *coro)
		790	{
		791	if (!IN_DESTRUCT)
		792	{
		793	/* restore all saved variables and stuff */
		794	LEAVE_SCOPE (0);
		795	assert (PL_tmps_floor == -1);
		796
		797	/* free all temporaries */
		798	FREETMPS;
		799	assert (PL_tmps_ix == -1);
		800
		801	/* unwind all extra stacks */
		802	POPSTACK_TO (PL_mainstack);
		803
		804	/* unwind main stack */
		805	dounwind (-1);
		806	}
		807
		808	SvREFCNT_dec (GvSV (PL_defgv));
		809	SvREFCNT_dec (GvAV (PL_defgv));
		810	SvREFCNT_dec (GvSV (PL_errgv));
		811	SvREFCNT_dec (PL_defoutgv);
		812	SvREFCNT_dec (PL_rs);
		813	SvREFCNT_dec (GvSV (irsgv));
		814
		815	SvREFCNT_dec (PL_diehook);
		816	SvREFCNT_dec (PL_warnhook);
		817
		818	SvREFCNT_dec (coro->saved_deffh);
		819	SvREFCNT_dec (coro->throw);
		820
		821	coro_destroy_stacks (aTHX);
656	}	822	}
657		823
658	static void	824	static void
659	free_coro_mortal (pTHX)	825	free_coro_mortal (pTHX)
660	{	826	{
661	if (coro_mortal)	827	if (expect_true (coro_mortal))
662	{	828	{
663	SvREFCNT_dec (coro_mortal);	829	SvREFCNT_dec (coro_mortal);
664	coro_mortal = 0;	830	coro_mortal = 0;
665	}	831	}
666	}	832	}
…		…
695	bot = PL_stack_base + cx->blk_oldsp + 1;	861	bot = PL_stack_base + cx->blk_oldsp + 1;
696	top = cx->blk_gimme == G_ARRAY ? SP + 1	862	top = cx->blk_gimme == G_ARRAY ? SP + 1
697	: cx->blk_gimme == G_SCALAR ? bot + 1	863	: cx->blk_gimme == G_SCALAR ? bot + 1
698	: bot;	864	: bot;
699		865
		866	av_extend (av, top - bot);
700	while (bot < top)	867	while (bot < top)
701	av_push (av, SvREFCNT_inc (*bot++));	868	av_push (av, SvREFCNT_inc (*bot++));
702		869
703	PL_runops = RUNOPS_DEFAULT;	870	PL_runops = RUNOPS_DEFAULT;
704	ENTER;	871	ENTER;
…		…
744	SAVETMPS;	911	SAVETMPS;
745	EXTEND (SP, 3);	912	EXTEND (SP, 3);
746	PUSHMARK (SP);	913	PUSHMARK (SP);
747	PUSHs (&PL_sv_yes);	914	PUSHs (&PL_sv_yes);
748	PUSHs (fullname);	915	PUSHs (fullname);
749	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	916	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
750	PUTBACK;	917	PUTBACK;
751	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	918	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
752	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	919	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
753	SPAGAIN;	920	SPAGAIN;
754	FREETMPS;	921	FREETMPS;
…		…
790		957
791	/* inject a fake call to Coro::State::_cctx_init into the execution */	958	/* inject a fake call to Coro::State::_cctx_init into the execution */
792	/* _cctx_init should be careful, as it could be called at almost any time */	959	/* _cctx_init should be careful, as it could be called at almost any time */
793	/* during execution of a perl program */	960	/* during execution of a perl program */
794	static void NOINLINE	961	static void NOINLINE
795	prepare_cctx (pTHX_ coro_cctx *cctx)	962	cctx_prepare (pTHX_ coro_cctx *cctx)
796	{	963	{
797	dSP;	964	dSP;
798	LOGOP myop;	965	LOGOP myop;
799		966
800	PL_top_env = &PL_start_env;	967	PL_top_env = &PL_start_env;
…		…
818		985
819	/*	986	/*
820	* this is a _very_ stripped down perl interpreter ;)	987	* this is a _very_ stripped down perl interpreter ;)
821	*/	988	*/
822	static void	989	static void
823	coro_run (void *arg)	990	cctx_run (void *arg)
824	{	991	{
825	dTHX;	992	dTHX;
826		993
827	/* coro_run is the alternative tail of transfer(), so unlock here. */	994	/* cctx_run is the alternative tail of transfer(), so unlock here. */
828	UNLOCK;	995	UNLOCK;
829		996
830	/* we now skip the entersub that lead to transfer() */	997	/* we now skip the entersub that lead to transfer() */
831	PL_op = PL_op->op_next;	998	PL_op = PL_op->op_next;
832		999
833	/* inject a fake subroutine call to cctx_init */	1000	/* inject a fake subroutine call to cctx_init */
834	prepare_cctx (aTHX_ (coro_cctx *)arg);	1001	cctx_prepare (aTHX_ (coro_cctx *)arg);
835		1002
836	/* somebody or something will hit me for both perl_run and PL_restartop */	1003	/* somebody or something will hit me for both perl_run and PL_restartop */
837	PL_restartop = PL_op;	1004	PL_restartop = PL_op;
838	perl_run (PL_curinterp);	1005	perl_run (PL_curinterp);
839		1006
…		…
858	++cctx_count;	1025	++cctx_count;
859		1026
860	Newz (0, cctx, 1, coro_cctx);	1027	Newz (0, cctx, 1, coro_cctx);
861		1028
862	#if HAVE_MMAP	1029	#if HAVE_MMAP
863
864	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1030	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
865	/* mmap supposedly does allocate-on-write for us */	1031	/* mmap supposedly does allocate-on-write for us */
866	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1032	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
867		1033
868	if (cctx->sptr != (void *)-1)	1034	if (cctx->sptr != (void *)-1)
…		…
889	stack_start = cctx->sptr;	1055	stack_start = cctx->sptr;
890	stack_size = cctx->ssize;	1056	stack_size = cctx->ssize;
891	}	1057	}
892		1058
893	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1059	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
894	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1060	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
895		1061
896	return cctx;	1062	return cctx;
897	}	1063	}
898		1064
899	static void	1065	static void
…		…
916	Safefree (cctx->sptr);	1082	Safefree (cctx->sptr);
917		1083
918	Safefree (cctx);	1084	Safefree (cctx);
919	}	1085	}
920		1086
		1087	/* wether this cctx should be destructed */
		1088	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1089
921	static coro_cctx *	1090	static coro_cctx *
922	cctx_get (pTHX)	1091	cctx_get (pTHX)
923	{	1092	{
924	while (cctx_first)	1093	while (expect_true (cctx_first))
925	{	1094	{
926	coro_cctx *cctx = cctx_first;	1095	coro_cctx *cctx = cctx_first;
927	cctx_first = cctx->next;	1096	cctx_first = cctx->next;
928	--cctx_idle;	1097	--cctx_idle;
929		1098
930	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1099	if (expect_true (!CCTX_EXPIRED (cctx)))
931	return cctx;	1100	return cctx;
932		1101
933	cctx_destroy (cctx);	1102	cctx_destroy (cctx);
934	}	1103	}
935		1104
…		…
938		1107
939	static void	1108	static void
940	cctx_put (coro_cctx *cctx)	1109	cctx_put (coro_cctx *cctx)
941	{	1110	{
942	/* free another cctx if overlimit */	1111	/* free another cctx if overlimit */
943	if (cctx_idle >= MAX_IDLE_CCTX)	1112	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
944	{	1113	{
945	coro_cctx *first = cctx_first;	1114	coro_cctx *first = cctx_first;
946	cctx_first = first->next;	1115	cctx_first = first->next;
947	--cctx_idle;	1116	--cctx_idle;
948		1117
…		…
954	cctx_first = cctx;	1123	cctx_first = cctx;
955	}	1124	}
956		1125
957	/ coroutine switching ***************************************************/	1126	/ coroutine switching ***************************************************/
958		1127
959	static void NOINLINE	1128	static void
960	transfer_check (pTHX_ struct coro prev, struct coro next)	1129	transfer_check (pTHX_ struct coro prev, struct coro next)
961	{	1130	{
962	if (prev != next)	1131	if (expect_true (prev != next))
963	{	1132	{
964	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1133	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
965	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1134	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
966		1135
967	if (next->flags & CF_RUNNING)	1136	if (expect_false (next->flags & CF_RUNNING))
968	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1137	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
969		1138
970	if (next->flags & CF_DESTROYED)	1139	if (expect_false (next->flags & CF_DESTROYED))
971	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1140	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
972		1141
		1142	#if !PERL_VERSION_ATLEAST (5,10,0)
973	if (PL_lex_state != LEX_NOTPARSING)	1143	if (expect_false (PL_lex_state != LEX_NOTPARSING))
974	croak ("Coro::State::transfer called while parsing, but this is not supported");	1144	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1145	#endif
975	}	1146	}
976	}	1147	}
977		1148
978	/* always use the TRANSFER macro */	1149	/* always use the TRANSFER macro */
979	static void NOINLINE	1150	static void NOINLINE
980	transfer (pTHX_ struct coro prev, struct coro next)	1151	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
981	{	1152	{
982	dSTACKLEVEL;	1153	dSTACKLEVEL;
		1154	static volatile int has_throw;
983		1155
984	/* sometimes transfer is only called to set idle_sp */	1156	/* sometimes transfer is only called to set idle_sp */
985	if (!next)	1157	if (expect_false (!next))
986	{	1158	{
987	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1159	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
988	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1160	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
989	}	1161	}
990	else if (prev != next)	1162	else if (expect_true (prev != next))
991	{	1163	{
992	coro_cctx *prev__cctx;	1164	coro_cctx *prev__cctx;
993		1165
994	if (prev->flags & CF_NEW)	1166	if (expect_false (prev->flags & CF_NEW))
995	{	1167	{
996	/* create a new empty context */	1168	/* create a new empty context */
997	Newz (0, prev->cctx, 1, coro_cctx);	1169	Newz (0, prev->cctx, 1, coro_cctx);
998	prev->flags &= ~CF_NEW;	1170	prev->flags &= ~CF_NEW;
999	prev->flags \|= CF_RUNNING;	1171	prev->flags \|= CF_RUNNING;
…		…
1002	prev->flags &= ~CF_RUNNING;	1174	prev->flags &= ~CF_RUNNING;
1003	next->flags \|= CF_RUNNING;	1175	next->flags \|= CF_RUNNING;
1004		1176
1005	LOCK;	1177	LOCK;
1006		1178
		1179	/* first get rid of the old state */
		1180	save_perl (aTHX_ prev);
		1181
1007	if (next->flags & CF_NEW)	1182	if (expect_false (next->flags & CF_NEW))
1008	{	1183	{
1009	/* need to start coroutine */	1184	/* need to start coroutine */
1010	next->flags &= ~CF_NEW;	1185	next->flags &= ~CF_NEW;
1011	/* first get rid of the old state */
1012	save_perl (aTHX_ prev);
1013	/* setup coroutine call */	1186	/* setup coroutine call */
1014	setup_coro (aTHX_ next);	1187	coro_setup (aTHX_ next);
1015	}	1188	}
1016	else	1189	else
1017	{
1018	/* coroutine already started */
1019	save_perl (aTHX_ prev);
1020	load_perl (aTHX_ next);	1190	load_perl (aTHX_ next);
1021	}
1022		1191
1023	prev__cctx = prev->cctx;	1192	prev__cctx = prev->cctx;
1024		1193
1025	/* possibly "free" the cctx */	1194	/* possibly "free" the cctx */
1026	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1195	if (expect_true (
		1196	prev__cctx->idle_sp == STACKLEVEL
		1197	&& !(prev__cctx->flags & CC_TRACE)
		1198	&& !force_cctx
		1199	))
1027	{	1200	{
1028	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1201	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1029	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1202	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1030		1203
1031	prev->cctx = 0;	1204	prev->cctx = 0;
1032		1205
		1206	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1207	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1208	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1209	if (!next->cctx)
		1210	next->cctx = cctx_get (aTHX);
		1211
1033	cctx_put (prev__cctx);	1212	cctx_put (prev__cctx);
1034	}	1213	}
1035		1214
1036	++next->usecount;	1215	++next->usecount;
1037		1216
1038	if (!next->cctx)	1217	if (expect_true (!next->cctx))
1039	next->cctx = cctx_get (aTHX);	1218	next->cctx = cctx_get (aTHX);
1040		1219
		1220	has_throw = !!next->throw;
		1221
1041	if (prev__cctx != next->cctx)	1222	if (expect_false (prev__cctx != next->cctx))
1042	{	1223	{
1043	prev__cctx->top_env = PL_top_env;	1224	prev__cctx->top_env = PL_top_env;
1044	PL_top_env = next->cctx->top_env;	1225	PL_top_env = next->cctx->top_env;
1045	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1226	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1046	}	1227	}
1047		1228
1048	free_coro_mortal (aTHX);	1229	free_coro_mortal (aTHX);
1049	UNLOCK;	1230	UNLOCK;
		1231
		1232	if (expect_false (has_throw))
		1233	{
		1234	struct coro *coro = SvSTATE (coro_current);
		1235
		1236	if (coro->throw)
		1237	{
		1238	SV *exception = coro->throw;
		1239	coro->throw = 0;
		1240	sv_setsv (ERRSV, exception);
		1241	croak (0);
		1242	}
		1243	}
1050	}	1244	}
1051	}	1245	}
1052		1246
1053	struct transfer_args	1247	struct transfer_args
1054	{	1248	{
1055	struct coro prev, next;	1249	struct coro prev, next;
1056	};	1250	};
1057		1251
1058	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1252	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1059	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1253	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1060		1254
1061	/ high level stuff ******************************************************/	1255	/ high level stuff ******************************************************/
1062		1256
1063	static int	1257	static int
…		…
1081		1275
1082	if (coro->mainstack && coro->mainstack != main_mainstack)	1276	if (coro->mainstack && coro->mainstack != main_mainstack)
1083	{	1277	{
1084	struct coro temp;	1278	struct coro temp;
1085		1279
1086	assert (!(coro->flags & CF_RUNNING));
1087
1088	Zero (&temp, 1, struct coro);
1089	temp.save = CORO_SAVE_ALL;
1090
1091	if (coro->flags & CF_RUNNING)	1280	if (coro->flags & CF_RUNNING)
1092	croak ("FATAL: tried to destroy currently running coroutine");	1281	croak ("FATAL: tried to destroy currently running coroutine");
1093		1282
1094	save_perl (aTHX_ &temp);	1283	save_perl (aTHX_ &temp);
1095	load_perl (aTHX_ coro);	1284	load_perl (aTHX_ coro);
1096		1285
1097	coro_destroy_stacks (aTHX);	1286	coro_destroy (aTHX_ coro);
1098		1287
1099	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1288	load_perl (aTHX_ &temp);
1100		1289
1101	coro->mainstack = 0;	1290	coro->slot = 0;
1102	}	1291	}
1103		1292
1104	cctx_destroy (coro->cctx);	1293	cctx_destroy (coro->cctx);
1105	SvREFCNT_dec (coro->args);	1294	SvREFCNT_dec (coro->args);
1106		1295
…		…
1162	{	1351	{
1163	dTHX;	1352	dTHX;
1164	struct transfer_args ta;	1353	struct transfer_args ta;
1165		1354
1166	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1355	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1167	TRANSFER (ta);	1356	TRANSFER (ta, 1);
1168	}
1169
1170	static int
1171	api_save (SV *coro_sv, int new_save)
1172	{
1173	dTHX;
1174	struct coro *coro = SvSTATE (coro_sv);
1175	int old_save = coro->save;
1176
1177	if (new_save >= 0)
1178	coro->save = new_save;
1179
1180	return old_save;
1181	}	1357	}
1182		1358
1183	/ Coro ******************************************************************/	1359	/ Coro ******************************************************************/
1184		1360
1185	static void	1361	static void
…		…
1187	{	1363	{
1188	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1364	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1189	}	1365	}
1190		1366
1191	static SV *	1367	static SV *
1192	coro_deq (pTHX_ int min_prio)	1368	coro_deq (pTHX)
1193	{	1369	{
1194	int prio = PRIO_MAX - PRIO_MIN;	1370	int prio;
1195		1371
1196	min_prio -= PRIO_MIN;
1197	if (min_prio < 0)
1198	min_prio = 0;
1199
1200	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1372	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1201	if (AvFILLp (coro_ready [prio]) >= 0)	1373	if (AvFILLp (coro_ready [prio]) >= 0)
1202	return av_shift (coro_ready [prio]);	1374	return av_shift (coro_ready [prio]);
1203		1375
1204	return 0;	1376	return 0;
1205	}	1377	}
…		…
1241	SV prev_sv, next_sv;	1413	SV prev_sv, next_sv;
1242		1414
1243	for (;;)	1415	for (;;)
1244	{	1416	{
1245	LOCK;	1417	LOCK;
1246	next_sv = coro_deq (aTHX_ PRIO_MIN);	1418	next_sv = coro_deq (aTHX);
1247		1419
1248	/* nothing to schedule: call the idle handler */	1420	/* nothing to schedule: call the idle handler */
1249	if (!next_sv)	1421	if (expect_false (!next_sv))
1250	{	1422	{
1251	dSP;	1423	dSP;
1252	UNLOCK;	1424	UNLOCK;
1253		1425
1254	ENTER;	1426	ENTER;
1255	SAVETMPS;	1427	SAVETMPS;
1256		1428
1257	PUSHMARK (SP);	1429	PUSHMARK (SP);
1258	PUTBACK;	1430	PUTBACK;
1259	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1431	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1432	SPAGAIN;
1260		1433
1261	FREETMPS;	1434	FREETMPS;
1262	LEAVE;	1435	LEAVE;
1263	continue;	1436	continue;
1264	}	1437	}
1265		1438
1266	ta->next = SvSTATE (next_sv);	1439	ta->next = SvSTATE (next_sv);
1267		1440
1268	/* cannot transfer to destroyed coros, skip and look for next */	1441	/* cannot transfer to destroyed coros, skip and look for next */
1269	if (ta->next->flags & CF_DESTROYED)	1442	if (expect_false (ta->next->flags & CF_DESTROYED))
1270	{	1443	{
1271	UNLOCK;	1444	UNLOCK;
1272	SvREFCNT_dec (next_sv);	1445	SvREFCNT_dec (next_sv);
1273	/* coro_nready is already taken care of by destroy */	1446	/* coro_nready is already taken care of by destroy */
1274	continue;	1447	continue;
…		…
1319	{	1492	{
1320	dTHX;	1493	dTHX;
1321	struct transfer_args ta;	1494	struct transfer_args ta;
1322		1495
1323	prepare_schedule (aTHX_ &ta);	1496	prepare_schedule (aTHX_ &ta);
1324	TRANSFER (ta);	1497	TRANSFER (ta, 1);
1325	}	1498	}
1326		1499
1327	static int	1500	static int
1328	api_cede (void)	1501	api_cede (void)
1329	{	1502	{
1330	dTHX;	1503	dTHX;
1331	struct transfer_args ta;	1504	struct transfer_args ta;
1332		1505
1333	prepare_cede (aTHX_ &ta);	1506	prepare_cede (aTHX_ &ta);
1334		1507
1335	if (ta.prev != ta.next)	1508	if (expect_true (ta.prev != ta.next))
1336	{	1509	{
1337	TRANSFER (ta);	1510	TRANSFER (ta, 1);
1338	return 1;	1511	return 1;
1339	}	1512	}
1340	else	1513	else
1341	return 0;	1514	return 0;
1342	}	1515	}
…		…
1347	dTHX;	1520	dTHX;
1348	struct transfer_args ta;	1521	struct transfer_args ta;
1349		1522
1350	if (prepare_cede_notself (aTHX_ &ta))	1523	if (prepare_cede_notself (aTHX_ &ta))
1351	{	1524	{
1352	TRANSFER (ta);	1525	TRANSFER (ta, 1);
1353	return 1;	1526	return 1;
1354	}	1527	}
1355	else	1528	else
1356	return 0;	1529	return 0;
1357	}	1530	}
…		…
1376	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1549	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1377		1550
1378	if (coro->flags & CF_RUNNING)	1551	if (coro->flags & CF_RUNNING)
1379	PL_runops = RUNOPS_DEFAULT;	1552	PL_runops = RUNOPS_DEFAULT;
1380	else	1553	else
1381	coro->runops = RUNOPS_DEFAULT;	1554	coro->slot->runops = RUNOPS_DEFAULT;
1382	}	1555	}
1383	}	1556	}
1384		1557
1385	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1558	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1386		1559
…		…
1390	{	1563	{
1391	#ifdef USE_ITHREADS	1564	#ifdef USE_ITHREADS
1392	MUTEX_INIT (&coro_mutex);	1565	MUTEX_INIT (&coro_mutex);
1393	#endif	1566	#endif
1394	BOOT_PAGESIZE;	1567	BOOT_PAGESIZE;
		1568
		1569	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1570	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1571
		1572	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1573	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1574	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1575	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1576
		1577	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1578	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1579	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1395		1580
1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1581	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1397		1582
1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1583	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1584	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1400	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1585	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	1586	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1402		1587
1403	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1404	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1405	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1406	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1407	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1408	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1409	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1410
1411	main_mainstack = PL_mainstack;	1588	main_mainstack = PL_mainstack;
1412	main_top_env = PL_top_env;	1589	main_top_env = PL_top_env;
1413		1590
1414	while (main_top_env->je_prev)	1591	while (main_top_env->je_prev)
1415	main_top_env = main_top_env->je_prev;	1592	main_top_env = main_top_env->je_prev;
1416		1593
1417	coroapi.ver = CORO_API_VERSION;	1594	coroapi.ver = CORO_API_VERSION;
		1595	coroapi.rev = CORO_API_REVISION;
1418	coroapi.transfer = api_transfer;	1596	coroapi.transfer = api_transfer;
1419		1597
1420	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1598	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1421	}	1599	}
1422		1600
1423	SV *	1601	SV *
1424	new (char *klass, ...)	1602	new (char *klass, ...)
1425	CODE:	1603	CODE:
1426	{	1604	{
1427	struct coro *coro;	1605	struct coro *coro;
		1606	MAGIC *mg;
1428	HV *hv;	1607	HV *hv;
1429	int i;	1608	int i;
1430		1609
1431	Newz (0, coro, 1, struct coro);	1610	Newz (0, coro, 1, struct coro);
1432	coro->args = newAV ();	1611	coro->args = newAV ();
1433	coro->save = CORO_SAVE_DEF;
1434	coro->flags = CF_NEW;	1612	coro->flags = CF_NEW;
1435		1613
1436	if (coro_first) coro_first->prev = coro;	1614	if (coro_first) coro_first->prev = coro;
1437	coro->next = coro_first;	1615	coro->next = coro_first;
1438	coro_first = coro;	1616	coro_first = coro;
1439		1617
1440	coro->hv = hv = newHV ();	1618	coro->hv = hv = newHV ();
1441	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1619	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1620	mg->mg_flags \|= MGf_DUP;
1442	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1621	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1443		1622
		1623	av_extend (coro->args, items - 1);
1444	for (i = 1; i < items; i++)	1624	for (i = 1; i < items; i++)
1445	av_push (coro->args, newSVsv (ST (i)));	1625	av_push (coro->args, newSVsv (ST (i)));
1446	}	1626	}
1447	OUTPUT:	1627	OUTPUT:
1448	RETVAL	1628	RETVAL
1449		1629
1450	int	1630	# these not obviously related functions are all rolled into the same xs
1451	save (SV *coro, int new_save = -1)	1631	# function to increase chances that they all will call transfer with the same
1452	CODE:	1632	# stack offset
1453	RETVAL = api_save (coro, new_save);
1454	OUTPUT:
1455	RETVAL
1456
1457	int
1458	save_also (SV *coro_sv, int save_also)
1459	CODE:
1460	{
1461	struct coro *coro = SvSTATE (coro_sv);
1462	RETVAL = coro->save;
1463	coro->save \|= save_also;
1464	}
1465	OUTPUT:
1466	RETVAL
1467
1468	void	1633	void
1469	_set_stacklevel (...)	1634	_set_stacklevel (...)
1470	ALIAS:	1635	ALIAS:
1471	Coro::State::transfer = 1	1636	Coro::State::transfer = 1
1472	Coro::schedule = 2	1637	Coro::schedule = 2
…		…
1474	Coro::cede_notself = 4	1639	Coro::cede_notself = 4
1475	CODE:	1640	CODE:
1476	{	1641	{
1477	struct transfer_args ta;	1642	struct transfer_args ta;
1478		1643
		1644	PUTBACK;
1479	switch (ix)	1645	switch (ix)
1480	{	1646	{
1481	case 0:	1647	case 0:
1482	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1648	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1483	ta.next = 0;	1649	ta.next = 0;
…		…
1502	if (!prepare_cede_notself (aTHX_ &ta))	1668	if (!prepare_cede_notself (aTHX_ &ta))
1503	XSRETURN_EMPTY;	1669	XSRETURN_EMPTY;
1504		1670
1505	break;	1671	break;
1506	}	1672	}
		1673	SPAGAIN;
1507		1674
1508	BARRIER;	1675	BARRIER;
		1676	PUTBACK;
1509	TRANSFER (ta);	1677	TRANSFER (ta, 0);
1510		1678	SPAGAIN; /* might be the sp of a different coroutine now */
1511	if (GIMME_V != G_VOID && ta.next != ta.prev)	1679	/* be extra careful not to ever do anything after TRANSFER */
1512	XSRETURN_YES;
1513	}	1680	}
1514		1681
1515	bool	1682	bool
1516	_destroy (SV *coro_sv)	1683	_destroy (SV *coro_sv)
1517	CODE:	1684	CODE:
…		…
1566	CODE:	1733	CODE:
1567	{	1734	{
1568	if (coro->mainstack)	1735	if (coro->mainstack)
1569	{	1736	{
1570	struct coro temp;	1737	struct coro temp;
1571	Zero (&temp, 1, struct coro);
1572	temp.save = CORO_SAVE_ALL;
1573		1738
1574	if (!(coro->flags & CF_RUNNING))	1739	if (!(coro->flags & CF_RUNNING))
1575	{	1740	{
		1741	PUTBACK;
1576	save_perl (aTHX_ &temp);	1742	save_perl (aTHX_ &temp);
1577	load_perl (aTHX_ coro);	1743	load_perl (aTHX_ coro);
1578	}	1744	}
1579		1745
1580	{	1746	{
1581	dSP;	1747	dSP;
1582	ENTER;	1748	ENTER;
1583	SAVETMPS;	1749	SAVETMPS;
		1750	PUTBACK;
		1751	PUSHSTACK;
1584	PUSHMARK (SP);	1752	PUSHMARK (SP);
1585	PUTBACK;	1753
1586	if (ix)	1754	if (ix)
1587	eval_sv (coderef, 0);	1755	eval_sv (coderef, 0);
1588	else	1756	else
1589	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1757	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1758
		1759	POPSTACK;
1590	SPAGAIN;	1760	SPAGAIN;
1591	FREETMPS;	1761	FREETMPS;
1592	LEAVE;	1762	LEAVE;
1593	PUTBACK;	1763	PUTBACK;
1594	}	1764	}
1595		1765
1596	if (!(coro->flags & CF_RUNNING))	1766	if (!(coro->flags & CF_RUNNING))
1597	{	1767	{
1598	save_perl (aTHX_ coro);	1768	save_perl (aTHX_ coro);
1599	load_perl (aTHX_ &temp);	1769	load_perl (aTHX_ &temp);
		1770	SPAGAIN;
1600	}	1771	}
1601	}	1772	}
1602	}	1773	}
1603		1774
1604	SV *	1775	SV *
…		…
1645	case 1: RETVAL = coro->usecount; break;	1816	case 1: RETVAL = coro->usecount; break;
1646	}	1817	}
1647	OUTPUT:	1818	OUTPUT:
1648	RETVAL	1819	RETVAL
1649		1820
		1821	void
		1822	force_cctx ()
		1823	CODE:
		1824	struct coro *coro = SvSTATE (coro_current);
		1825	coro->cctx->idle_sp = 0;
1650		1826
1651	MODULE = Coro::State PACKAGE = Coro	1827	MODULE = Coro::State PACKAGE = Coro
1652		1828
1653	BOOT:	1829	BOOT:
1654	{	1830	{
1655	int i;	1831	int i;
1656		1832
1657	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1833	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1658	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1834	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1659	av_async_pool = get_av ("Coro::async_pool", TRUE);	1835	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1660		1836
1661	coro_current = get_sv ("Coro::current", FALSE);	1837	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1662	SvREADONLY_on (coro_current);	1838	SvREADONLY_on (coro_current);
1663		1839
1664	coro_stash = gv_stashpv ("Coro", TRUE);	1840	coro_stash = gv_stashpv ("Coro", TRUE);
1665		1841
1666	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1842	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1667	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1843	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1668	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1844	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1669	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1845	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1672		1848
1673	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1849	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1674	coro_ready[i] = newAV ();	1850	coro_ready[i] = newAV ();
1675		1851
1676	{	1852	{
1677	SV *sv = perl_get_sv("Coro::API", 1);	1853	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1854	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1678		1855
1679	coroapi.schedule = api_schedule;	1856	coroapi.schedule = api_schedule;
1680	coroapi.save = api_save;
1681	coroapi.cede = api_cede;	1857	coroapi.cede = api_cede;
1682	coroapi.cede_notself = api_cede_notself;	1858	coroapi.cede_notself = api_cede_notself;
1683	coroapi.ready = api_ready;	1859	coroapi.ready = api_ready;
1684	coroapi.is_ready = api_is_ready;	1860	coroapi.is_ready = api_is_ready;
1685	coroapi.nready = &coro_nready;	1861	coroapi.nready = &coro_nready;
…		…
1734	CODE:	1910	CODE:
1735	RETVAL = coro_nready;	1911	RETVAL = coro_nready;
1736	OUTPUT:	1912	OUTPUT:
1737	RETVAL	1913	RETVAL
1738		1914
		1915	void
		1916	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1917	PROTOTYPE: $;$
		1918	CODE:
		1919	SvREFCNT_dec (self->throw);
		1920	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1921
		1922	void
		1923	swap_defsv (Coro::State self)
		1924	PROTOTYPE: $
		1925	ALIAS:
		1926	swap_defav = 1
		1927	CODE:
		1928	if (!self->slot)
		1929	croak ("cannot swap state with coroutine that has no saved state");
		1930	else
		1931	{
		1932	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1933	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1934
		1935	SV tmp = src; src = dst; *dst = tmp;
		1936	}
		1937
1739	# for async_pool speedup	1938	# for async_pool speedup
1740	void	1939	void
1741	_pool_1 (SV *cb)	1940	_pool_1 (SV *cb)
1742	CODE:	1941	CODE:
1743	{	1942	{
1744	int i, len;	1943	struct coro *coro = SvSTATE (coro_current);
1745	HV hv = (HV )SvRV (coro_current);	1944	HV hv = (HV )SvRV (coro_current);
1746	AV *defav = GvAV (PL_defgv);	1945	AV *defav = GvAV (PL_defgv);
1747	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1946	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1748	AV *invoke_av;	1947	AV *invoke_av;
		1948	int i, len;
1749		1949
1750	if (!invoke)	1950	if (!invoke)
		1951	{
		1952	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1751	croak ("\3terminate\2\n");	1953	croak ("\3async_pool terminate\2\n");
		1954	}
		1955
		1956	SvREFCNT_dec (coro->saved_deffh);
		1957	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1752		1958
1753	hv_store (hv, "desc", sizeof ("desc") - 1,	1959	hv_store (hv, "desc", sizeof ("desc") - 1,
1754	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1960	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1755		1961
1756	invoke_av = (AV *)SvRV (invoke);	1962	invoke_av = (AV *)SvRV (invoke);
…		…
1774	{	1980	{
1775	struct coro *coro = SvSTATE (coro_current);	1981	struct coro *coro = SvSTATE (coro_current);
1776		1982
1777	sv_setsv (cb, &PL_sv_undef);	1983	sv_setsv (cb, &PL_sv_undef);
1778		1984
		1985	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1986	coro->saved_deffh = 0;
		1987
1779	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1988	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1780	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1989	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1990	{
		1991	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1781	croak ("\3terminate\2\n");	1992	croak ("\3async_pool terminate\2\n");
		1993	}
1782		1994
1783	av_clear (GvAV (PL_defgv));	1995	av_clear (GvAV (PL_defgv));
1784	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1996	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1785	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1997	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1786		1998
1787	coro->save = CORO_SAVE_DEF;
1788	coro->prio = 0;	1999	coro->prio = 0;
1789		2000
1790	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2001	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1791	api_trace (coro_current, 0);	2002	api_trace (coro_current, 0);
1792		2003

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.175 by root, Sun Sep 30 13:43:45 2007 UTC vs. Revision 1.232 by root, Thu Apr 24 12:40:38 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.175 by root, Sun Sep 30 13:43:45 2007 UTC vs.
Revision 1.232 by root, Thu Apr 24 12:40:38 2008 UTC