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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC vs.
Revision 1.237 by root, Fri May 23 00:27:06 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15
		16	#ifdef WIN32
		17	# undef setjmp
		18	# undef longjmp
		19	# undef _exit
		20	# define setjmp _setjmp // deep magic, don't ask
		21	#else
		22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
14		24
15	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
16	# include <unistd.h>	26	# include <unistd.h>
17	# include <sys/mman.h>	27	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
70	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
72	# endif	82	# endif
73	#endif	83	#endif
74		84
		85	/* 5.8.8 */
		86	#ifndef GV_NOTQUAL
		87	# define GV_NOTQUAL 0
		88	#endif
		89	#ifndef newSV
		90	# define newSV(l) NEWSV(0,l)
		91	#endif
		92
		93	/* 5.11 */
		94	#ifndef CxHASARGS
		95	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		96	#endif
		97
75	/* 5.8.7 */	98	/* 5.8.7 */
76	#ifndef SvRV_set	99	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif
79
80	/* 5.8.8 */
81	#ifndef GV_NOTQUAL
82	# define GV_NOTQUAL 0
83	#endif
84	#ifndef newSV
85	# define newSV(l) NEWSV(0,l)
86	#endif	101	#endif
87		102
88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	103	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
89	# undef CORO_STACKGUARD	104	# undef CORO_STACKGUARD
90	#endif	105	#endif
…		…
106	#define IN_DESTRUCT (PL_main_cv == Nullcv)	121	#define IN_DESTRUCT (PL_main_cv == Nullcv)
107		122
108	#if __GNUC__ >= 3	123	#if __GNUC__ >= 3
109	# define attribute(x) __attribute__(x)	124	# define attribute(x) __attribute__(x)
110	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	125	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		126	# define expect(expr,value) __builtin_expect ((expr),(value))
111	#else	127	#else
112	# define attribute(x)	128	# define attribute(x)
113	# define BARRIER	129	# define BARRIER
		130	# define expect(expr,value) (expr)
114	#endif	131	#endif
		132
		133	#define expect_false(expr) expect ((expr) != 0, 0)
		134	#define expect_true(expr) expect ((expr) != 0, 1)
115		135
116	#define NOINLINE attribute ((noinline))	136	#define NOINLINE attribute ((noinline))
117		137
118	#include "CoroAPI.h"	138	#include "CoroAPI.h"
119		139
…		…
138	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
139	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
140	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
141	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
142	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
143	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
144		164
145	static GV irsgv; / $/ */	165	static GV irsgv; / $/ */
146	static GV stdoutgv; / STDOUT /	166	static GV stdoutgv; / STDOUT /
		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
		169	static HV hv_sig; / %SIG */
147		170
148	/* async_pool helper stuff */	171	/* async_pool helper stuff */
149	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
150	static SV *sv_pool_size;	173	static SV *sv_pool_size;
151	static AV *av_async_pool;	174	static AV *av_async_pool;
		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
152		178
153	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
154	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
155		181
156	enum {	182	enum {
…		…
187	CF_READY = 0x0002, /* coroutine is ready */	213	CF_READY = 0x0002, /* coroutine is ready */
188	CF_NEW = 0x0004, /* has never been switched to */	214	CF_NEW = 0x0004, /* has never been switched to */
189	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	215	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
190	};	216	};
191		217
		218	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		219	typedef struct {
		220	SV *defsv;
		221	AV *defav;
		222	SV *errsv;
		223	SV *irsgv;
		224	#define VAR(name,type) type name;
		225	# include "state.h"
		226	#undef VAR
		227	} perl_slots;
		228
		229	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		230
192	/* this is a structure representing a perl-level coroutine */	231	/* this is a structure representing a perl-level coroutine */
193	struct coro {	232	struct coro {
194	/* the c coroutine allocated to this perl coroutine, if any */	233	/* the c coroutine allocated to this perl coroutine, if any */
195	coro_cctx *cctx;	234	coro_cctx *cctx;
196		235
		236	/* process data */
		237	AV *mainstack;
		238	perl_slots slot; / basically the saved sp */
		239
197	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
198	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
199	int refcnt;
200	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
201		243	HV hv; / the perl hash associated with this coro, if any */
202	/* optionally saved, might be zero */
203	AV defav; / @_ */
204	SV defsv; / $_ */
205	SV errsv; / $@ */
206	SV deffh; / default filehandle */
207	SV irssv; / $/ */
208	SV irssv_sv; / real $/ cache */
209
210	#define VAR(name,type) type name;
211	# include "state.h"
212	#undef VAR
213		244
214	/* statistics */	245	/* statistics */
215	int usecount; /* number of transfers to this coro */	246	int usecount; /* number of transfers to this coro */
216		247
217	/* coro process data */	248	/* coro process data */
218	int prio;	249	int prio;
219	//SV *throw;	250	SV throw; / exception to be thrown */
220		251
221	/* async_pool */	252	/* async_pool */
222	SV *saved_deffh;	253	SV *saved_deffh;
223		254
224	/* linked list */	255	/* linked list */
225	struct coro next, prev;	256	struct coro next, prev;
226	HV hv; / the perl hash associated with this coro, if any */
227	};	257	};
228		258
229	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
230	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
231		261
…		…
238	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
239	#define PRIO_MIN -4	269	#define PRIO_MIN -4
240		270
241	/* for Coro.pm */	271	/* for Coro.pm */
242	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
243	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
244	static int coro_nready;	275	static int coro_nready;
245	static struct coro *coro_first;	276	static struct coro *coro_first;
246		277
247	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
248		279
		280	static SV *
		281	coro_get_sv (pTHX_ const char *name, int create)
		282	{
		283	#if PERL_VERSION_ATLEAST (5,10,0)
		284	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		285	get_sv (name, create);
		286	#endif
		287	return get_sv (name, create);
		288	}
		289
		290	static AV *
		291	coro_get_av (pTHX_ const char *name, int create)
		292	{
		293	#if PERL_VERSION_ATLEAST (5,10,0)
		294	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		295	get_av (name, create);
		296	#endif
		297	return get_av (name, create);
		298	}
		299
		300	static HV *
		301	coro_get_hv (pTHX_ const char *name, int create)
		302	{
		303	#if PERL_VERSION_ATLEAST (5,10,0)
		304	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		305	get_hv (name, create);
		306	#endif
		307	return get_hv (name, create);
		308	}
		309
249	static AV *	310	static AV *
250	coro_clone_padlist (pTHX_ CV *cv)	311	coro_clone_padlist (pTHX_ CV *cv)
251	{	312	{
252	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
253	AV newpadlist, newpad;	314	AV newpadlist, newpad;
254		315
255	newpadlist = newAV ();	316	newpadlist = newAV ();
256	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
257	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
258	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
259	#else	320	#else
260	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
261	#endif	322	#endif
262	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
300		361
301	/* casting is fun. */	362	/* casting is fun. */
302	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
303	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
304		365
305	SvREFCNT_dec (av);
306
307	return 0;	366	return 0;
308	}	367	}
309		368
310	#define PERL_MAGIC_coro PERL_MAGIC_ext	369	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		370	#define CORO_MAGIC_type_state PERL_MAGIC_ext
311		371
312	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	372	static MGVTBL coro_cv_vtbl = {
		373	0, 0, 0, 0,
		374	coro_cv_free
		375	};
313		376
314	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
315	SvMAGIC (cv) \	378	SvMAGIC (sv) \
316	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
317	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
318	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
319	: 0	382	: 0
		383
		384	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		385	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
320		386
321	static struct coro *	387	static struct coro *
322	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
323	{	389	{
324	HV *stash;	390	HV *stash;
325	MAGIC *mg;	391	MAGIC *mg;
326		392
327	if (SvROK (coro))	393	if (SvROK (coro))
328	coro = SvRV (coro);	394	coro = SvRV (coro);
329		395
330	if (SvTYPE (coro) != SVt_PVHV)	396	if (expect_false (SvTYPE (coro) != SVt_PVHV))
331	croak ("Coro::State object required");	397	croak ("Coro::State object required");
332		398
333	stash = SvSTASH (coro);	399	stash = SvSTASH (coro);
334	if (stash != coro_stash && stash != coro_state_stash)	400	if (expect_false (stash != coro_stash && stash != coro_state_stash))
335	{	401	{
336	/* very slow, but rare, check */	402	/* very slow, but rare, check */
337	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
338	croak ("Coro::State object required");	404	croak ("Coro::State object required");
339	}	405	}
340		406
341	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
342	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
343	}	409	}
344		410
345	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
346		412
347	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
348	static void	414	static void
349	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
350	{	416	{
351	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
352	AV *av;	418	AV *av;
353		419
354	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
355	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
356	else	422	else
357	{	423	{
358	#if CORO_PREFER_PERL_FUNCTIONS	424	#if CORO_PREFER_PERL_FUNCTIONS
359	/* this is probably cleaner, but also slower? */	425	/* this is probably cleaner, but also slower? */
…		…
368	}	434	}
369		435
370	static void	436	static void
371	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
372	{	438	{
373	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
374	AV *av;	440	AV *av;
375		441
376	if (!mg)	442	if (expect_false (!mg))
377	{	443	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
378	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
379	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
380	mg->mg_virtual = &vtbl_coro;
381	mg->mg_obj = (SV *)newAV ();
382	}
383		444
384	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
385		446
386	if (AvFILLp (av) >= AvMAX (av))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
387	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
388		449
389	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	450	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
390	}	451	}
391		452
392	/ load & save, init *****************************************************/	453	/ load & save, init *****************************************************/
393		454
394	static void	455	static void
395	load_perl (pTHX_ Coro__State c)	456	load_perl (pTHX_ Coro__State c)
396	{	457	{
		458	perl_slots *slot = c->slot;
		459	c->slot = 0;
		460
		461	PL_mainstack = c->mainstack;
		462
		463	GvSV (PL_defgv) = slot->defsv;
		464	GvAV (PL_defgv) = slot->defav;
		465	GvSV (PL_errgv) = slot->errsv;
		466	GvSV (irsgv) = slot->irsgv;
		467
397	#define VAR(name,type) PL_ ## name = c->name;	468	#define VAR(name,type) PL_ ## name = slot->name;
398	# include "state.h"	469	# include "state.h"
399	#undef VAR	470	#undef VAR
400
401	GvSV (PL_defgv) = c->defsv;
402	GvAV (PL_defgv) = c->defav;
403	GvSV (PL_errgv) = c->errsv;
404	GvSV (irsgv) = c->irssv_sv;
405		471
406	{	472	{
407	dSP;	473	dSP;
		474
408	CV *cv;	475	CV *cv;
409		476
410	/* now do the ugly restore mess */	477	/* now do the ugly restore mess */
411	while ((cv = (CV *)POPs))	478	while (expect_true (cv = (CV *)POPs))
412	{	479	{
413	put_padlist (aTHX_ cv); /* mark this padlist as available */	480	put_padlist (aTHX_ cv); /* mark this padlist as available */
414	CvDEPTH (cv) = PTR2IV (POPs);	481	CvDEPTH (cv) = PTR2IV (POPs);
415	CvPADLIST (cv) = (AV *)POPs;	482	CvPADLIST (cv) = (AV *)POPs;
416	}	483	}
…		…
435		502
436	XPUSHs (Nullsv);	503	XPUSHs (Nullsv);
437	/* this loop was inspired by pp_caller */	504	/* this loop was inspired by pp_caller */
438	for (;;)	505	for (;;)
439	{	506	{
440	while (cxix >= 0)	507	while (expect_true (cxix >= 0))
441	{	508	{
442	PERL_CONTEXT *cx = &ccstk[cxix--];	509	PERL_CONTEXT *cx = &ccstk[cxix--];
443		510
444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	511	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
445	{	512	{
446	CV *cv = cx->blk_sub.cv;	513	CV *cv = cx->blk_sub.cv;
447		514
448	if (CvDEPTH (cv))	515	if (expect_true (CvDEPTH (cv)))
449	{	516	{
450	EXTEND (SP, 3);	517	EXTEND (SP, 3);
451	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
453	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
454		521
455	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
456	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
457	}	524	}
458	}	525	}
459	}	526	}
460		527
461	if (top_si->si_type == PERLSI_MAIN)	528	if (expect_true (top_si->si_type == PERLSI_MAIN))
462	break;	529	break;
463		530
464	top_si = top_si->si_prev;	531	top_si = top_si->si_prev;
465	ccstk = top_si->si_cxstack;	532	ccstk = top_si->si_cxstack;
466	cxix = top_si->si_cxix;	533	cxix = top_si->si_cxix;
467	}	534	}
468		535
469	PUTBACK;	536	PUTBACK;
470	}	537	}
471		538
		539	/* allocate some space on the context stack for our purposes */
		540	/* we manually unroll here, as usually 2 slots is enough */
		541	if (SLOT_COUNT >= 1) CXINC;
		542	if (SLOT_COUNT >= 2) CXINC;
		543	if (SLOT_COUNT >= 3) CXINC;
		544	{
		545	int i;
		546	for (i = 3; i < SLOT_COUNT; ++i)
		547	CXINC;
		548	}
		549	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		550
		551	c->mainstack = PL_mainstack;
		552
		553	{
		554	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		555
472	c->defav = GvAV (PL_defgv);	556	slot->defav = GvAV (PL_defgv);
473	c->defsv = DEFSV;	557	slot->defsv = DEFSV;
474	c->errsv = ERRSV;	558	slot->errsv = ERRSV;
475	c->irssv_sv = GvSV (irsgv);	559	slot->irsgv = GvSV (irsgv);
476		560
477	#define VAR(name,type)c->name = PL_ ## name;	561	#define VAR(name,type) slot->name = PL_ ## name;
478	# include "state.h"	562	# include "state.h"
479	#undef VAR	563	#undef VAR
		564	}
480	}	565	}
481		566
482	/*	567	/*
483	* allocate various perl stacks. This is an exact copy	568	* allocate various perl stacks. This is an exact copy
484	* of perl.c:init_stacks, except that it uses less memory	569	* of perl.c:init_stacks, except that it uses less memory
…		…
489	# define coro_init_stacks init_stacks	574	# define coro_init_stacks init_stacks
490	#else	575	#else
491	static void	576	static void
492	coro_init_stacks (pTHX)	577	coro_init_stacks (pTHX)
493	{	578	{
494	PL_curstackinfo = new_stackinfo(64, 6);	579	PL_curstackinfo = new_stackinfo(32, 8);
495	PL_curstackinfo->si_type = PERLSI_MAIN;	580	PL_curstackinfo->si_type = PERLSI_MAIN;
496	PL_curstack = PL_curstackinfo->si_stack;	581	PL_curstack = PL_curstackinfo->si_stack;
497	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	582	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
498		583
499	PL_stack_base = AvARRAY(PL_curstack);	584	PL_stack_base = AvARRAY(PL_curstack);
500	PL_stack_sp = PL_stack_base;	585	PL_stack_sp = PL_stack_base;
501	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	586	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
502		587
503	New(50,PL_tmps_stack,64,SV*);	588	New(50,PL_tmps_stack,32,SV*);
504	PL_tmps_floor = -1;	589	PL_tmps_floor = -1;
505	PL_tmps_ix = -1;	590	PL_tmps_ix = -1;
506	PL_tmps_max = 64;	591	PL_tmps_max = 32;
507		592
508	New(54,PL_markstack,16,I32);	593	New(54,PL_markstack,16,I32);
509	PL_markstack_ptr = PL_markstack;	594	PL_markstack_ptr = PL_markstack;
510	PL_markstack_max = PL_markstack + 16;	595	PL_markstack_max = PL_markstack + 16;
511		596
512	#ifdef SET_MARK_OFFSET	597	#ifdef SET_MARK_OFFSET
513	SET_MARK_OFFSET;	598	SET_MARK_OFFSET;
514	#endif	599	#endif
515		600
516	New(54,PL_scopestack,16,I32);	601	New(54,PL_scopestack,8,I32);
517	PL_scopestack_ix = 0;	602	PL_scopestack_ix = 0;
518	PL_scopestack_max = 16;	603	PL_scopestack_max = 8;
519		604
520	New(54,PL_savestack,64,ANY);	605	New(54,PL_savestack,24,ANY);
521	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
522	PL_savestack_max = 64;	607	PL_savestack_max = 24;
523		608
524	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
525	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
526	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
527	PL_retstack_max = 4;	612	PL_retstack_max = 4;
528	#endif	613	#endif
529	}	614	}
…		…
552		637
553	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
554	Safefree (PL_markstack);	639	Safefree (PL_markstack);
555	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
556	Safefree (PL_savestack);	641	Safefree (PL_savestack);
557	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
558	Safefree (PL_retstack);	643	Safefree (PL_retstack);
559	#endif	644	#endif
560	}	645	}
561		646
562	static size_t	647	static size_t
…		…
564	{	649	{
565	size_t rss = sizeof (*coro);	650	size_t rss = sizeof (*coro);
566		651
567	if (coro->mainstack)	652	if (coro->mainstack)
568	{	653	{
		654	perl_slots tmp_slot;
		655	perl_slots *slot;
		656
569	if (coro->flags & CF_RUNNING)	657	if (coro->flags & CF_RUNNING)
570	{	658	{
		659	slot = &tmp_slot;
		660
571	#define VAR(name,type)coro->name = PL_ ## name;	661	#define VAR(name,type) slot->name = PL_ ## name;
572	# include "state.h"	662	# include "state.h"
573	#undef VAR	663	#undef VAR
574	}	664	}
		665	else
		666	slot = coro->slot;
575		667
576	rss += sizeof (coro->curstackinfo);	668	rss += sizeof (slot->curstackinfo);
577	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
578	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	669	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
579	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	670	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
580	rss += coro->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
581	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
582	rss += coro->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
583	rss += coro->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
584		675
585	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
586	rss += coro->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
587	#endif	678	#endif
588	}	679	}
589		680
590	return rss;	681	return rss;
591	}	682	}
592		683
593	/ coroutine stack handling **********************************************/	684	/ coroutine stack handling **********************************************/
		685
		686	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		687	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		688
		689	/*
		690	* This overrides the default magic get method of %SIG elements.
		691	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		692	* and instead of tryign to save and restore the hash elements, we just provide
		693	* readback here.
		694	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		695	* not expecting this to actually change the hook. This is a potential problem
		696	* when a schedule happens then, but we ignore this.
		697	*/
		698	static int
		699	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		700	{
		701	const char *s = MgPV_nolen_const (mg);
		702
		703	if (*s == '_')
		704	{
		705	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		706	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		707	}
		708
		709	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		710	}
		711
		712	static int
		713	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		714	{
		715	const char *s = MgPV_nolen_const (mg);
		716
		717	if (*s == '_')
		718	{
		719	SV **svp = 0;
		720
		721	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		722	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		723
		724	if (svp)
		725	{
		726	SV old = svp;
		727	*svp = newSVsv (sv);
		728	SvREFCNT_dec (old);
		729	return 0;
		730	}
		731	}
		732
		733	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		734	}
594		735
595	static void	736	static void
596	coro_setup (pTHX_ struct coro *coro)	737	coro_setup (pTHX_ struct coro *coro)
597	{	738	{
598	/*	739	/*
…		…
603	PL_runops = RUNOPS_DEFAULT;	744	PL_runops = RUNOPS_DEFAULT;
604	PL_curcop = &PL_compiling;	745	PL_curcop = &PL_compiling;
605	PL_in_eval = EVAL_NULL;	746	PL_in_eval = EVAL_NULL;
606	PL_comppad = 0;	747	PL_comppad = 0;
607	PL_curpm = 0;	748	PL_curpm = 0;
		749	PL_curpad = 0;
608	PL_localizing = 0;	750	PL_localizing = 0;
609	PL_dirty = 0;	751	PL_dirty = 0;
610	PL_restartop = 0;	752	PL_restartop = 0;
		753	#if PERL_VERSION_ATLEAST (5,10,0)
		754	PL_parser = 0;
		755	#endif
		756
		757	/* recreate the die/warn hooks */
		758	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		759	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
611		760
612	GvSV (PL_defgv) = newSV (0);	761	GvSV (PL_defgv) = newSV (0);
613	GvAV (PL_defgv) = coro->args; coro->args = 0;	762	GvAV (PL_defgv) = coro->args; coro->args = 0;
614	GvSV (PL_errgv) = newSV (0);	763	GvSV (PL_errgv) = newSV (0);
615	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	764	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
616	PL_rs = newSVsv (GvSV (irsgv));	765	PL_rs = newSVsv (GvSV (irsgv));
617	PL_defoutgv = SvREFCNT_inc (stdoutgv);	766	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
618
619	ENTER; /* necessary e.g. for dounwind */
620		767
621	{	768	{
622	dSP;	769	dSP;
623	LOGOP myop;	770	LOGOP myop;
624		771
…		…
631	PUTBACK;	778	PUTBACK;
632	PL_op = (OP *)&myop;	779	PL_op = (OP *)&myop;
633	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	780	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
634	SPAGAIN;	781	SPAGAIN;
635	}	782	}
		783
		784	/* this newly created coroutine might be run on an existing cctx which most
		785	* likely was suspended in set_stacklevel, called from entersub.
		786	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		787	* so we ENTER here for symmetry
		788	*/
		789	ENTER;
636	}	790	}
637		791
638	static void	792	static void
639	coro_destroy (pTHX_ struct coro *coro)	793	coro_destroy (pTHX_ struct coro *coro)
640	{	794	{
…		…
660	SvREFCNT_dec (GvSV (PL_errgv));	814	SvREFCNT_dec (GvSV (PL_errgv));
661	SvREFCNT_dec (PL_defoutgv);	815	SvREFCNT_dec (PL_defoutgv);
662	SvREFCNT_dec (PL_rs);	816	SvREFCNT_dec (PL_rs);
663	SvREFCNT_dec (GvSV (irsgv));	817	SvREFCNT_dec (GvSV (irsgv));
664		818
		819	SvREFCNT_dec (PL_diehook);
		820	SvREFCNT_dec (PL_warnhook);
		821
665	SvREFCNT_dec (coro->saved_deffh);	822	SvREFCNT_dec (coro->saved_deffh);
666	//SvREFCNT_dec (coro->throw);	823	SvREFCNT_dec (coro->throw);
667		824
668	coro_destroy_stacks (aTHX);	825	coro_destroy_stacks (aTHX);
669	}	826	}
670		827
671	static void	828	static void
672	free_coro_mortal (pTHX)	829	free_coro_mortal (pTHX)
673	{	830	{
674	if (coro_mortal)	831	if (expect_true (coro_mortal))
675	{	832	{
676	SvREFCNT_dec (coro_mortal);	833	SvREFCNT_dec (coro_mortal);
677	coro_mortal = 0;	834	coro_mortal = 0;
678	}	835	}
679	}	836	}
…		…
758	SAVETMPS;	915	SAVETMPS;
759	EXTEND (SP, 3);	916	EXTEND (SP, 3);
760	PUSHMARK (SP);	917	PUSHMARK (SP);
761	PUSHs (&PL_sv_yes);	918	PUSHs (&PL_sv_yes);
762	PUSHs (fullname);	919	PUSHs (fullname);
763	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	920	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
764	PUTBACK;	921	PUTBACK;
765	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	922	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
766	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	923	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
767	SPAGAIN;	924	SPAGAIN;
768	FREETMPS;	925	FREETMPS;
…		…
804		961
805	/* inject a fake call to Coro::State::_cctx_init into the execution */	962	/* inject a fake call to Coro::State::_cctx_init into the execution */
806	/* _cctx_init should be careful, as it could be called at almost any time */	963	/* _cctx_init should be careful, as it could be called at almost any time */
807	/* during execution of a perl program */	964	/* during execution of a perl program */
808	static void NOINLINE	965	static void NOINLINE
809	prepare_cctx (pTHX_ coro_cctx *cctx)	966	cctx_prepare (pTHX_ coro_cctx *cctx)
810	{	967	{
811	dSP;	968	dSP;
812	LOGOP myop;	969	LOGOP myop;
813		970
814	PL_top_env = &PL_start_env;	971	PL_top_env = &PL_start_env;
…		…
832		989
833	/*	990	/*
834	* this is a _very_ stripped down perl interpreter ;)	991	* this is a _very_ stripped down perl interpreter ;)
835	*/	992	*/
836	static void	993	static void
837	coro_run (void *arg)	994	cctx_run (void *arg)
838	{	995	{
839	dTHX;	996	dTHX;
840		997
841	/* coro_run is the alternative tail of transfer(), so unlock here. */	998	/* cctx_run is the alternative tail of transfer(), so unlock here. */
842	UNLOCK;	999	UNLOCK;
843		1000
844	/* we now skip the entersub that lead to transfer() */	1001	/* we now skip the entersub that lead to transfer() */
845	PL_op = PL_op->op_next;	1002	PL_op = PL_op->op_next;
846		1003
847	/* inject a fake subroutine call to cctx_init */	1004	/* inject a fake subroutine call to cctx_init */
848	prepare_cctx (aTHX_ (coro_cctx *)arg);	1005	cctx_prepare (aTHX_ (coro_cctx *)arg);
849		1006
850	/* somebody or something will hit me for both perl_run and PL_restartop */	1007	/* somebody or something will hit me for both perl_run and PL_restartop */
851	PL_restartop = PL_op;	1008	PL_restartop = PL_op;
852	perl_run (PL_curinterp);	1009	perl_run (PL_curinterp);
853		1010
…		…
872	++cctx_count;	1029	++cctx_count;
873		1030
874	Newz (0, cctx, 1, coro_cctx);	1031	Newz (0, cctx, 1, coro_cctx);
875		1032
876	#if HAVE_MMAP	1033	#if HAVE_MMAP
877
878	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1034	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
879	/* mmap supposedly does allocate-on-write for us */	1035	/* mmap supposedly does allocate-on-write for us */
880	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1036	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
881		1037
882	if (cctx->sptr != (void *)-1)	1038	if (cctx->sptr != (void *)-1)
…		…
903	stack_start = cctx->sptr;	1059	stack_start = cctx->sptr;
904	stack_size = cctx->ssize;	1060	stack_size = cctx->ssize;
905	}	1061	}
906		1062
907	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1063	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
908	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1064	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
909		1065
910	return cctx;	1066	return cctx;
911	}	1067	}
912		1068
913	static void	1069	static void
…		…
936	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1092	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
937		1093
938	static coro_cctx *	1094	static coro_cctx *
939	cctx_get (pTHX)	1095	cctx_get (pTHX)
940	{	1096	{
941	while (cctx_first)	1097	while (expect_true (cctx_first))
942	{	1098	{
943	coro_cctx *cctx = cctx_first;	1099	coro_cctx *cctx = cctx_first;
944	cctx_first = cctx->next;	1100	cctx_first = cctx->next;
945	--cctx_idle;	1101	--cctx_idle;
946		1102
947	if (!CCTX_EXPIRED (cctx))	1103	if (expect_true (!CCTX_EXPIRED (cctx)))
948	return cctx;	1104	return cctx;
949		1105
950	cctx_destroy (cctx);	1106	cctx_destroy (cctx);
951	}	1107	}
952		1108
…		…
955		1111
956	static void	1112	static void
957	cctx_put (coro_cctx *cctx)	1113	cctx_put (coro_cctx *cctx)
958	{	1114	{
959	/* free another cctx if overlimit */	1115	/* free another cctx if overlimit */
960	if (cctx_idle >= MAX_IDLE_CCTX)	1116	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
961	{	1117	{
962	coro_cctx *first = cctx_first;	1118	coro_cctx *first = cctx_first;
963	cctx_first = first->next;	1119	cctx_first = first->next;
964	--cctx_idle;	1120	--cctx_idle;
965		1121
…		…
971	cctx_first = cctx;	1127	cctx_first = cctx;
972	}	1128	}
973		1129
974	/ coroutine switching ***************************************************/	1130	/ coroutine switching ***************************************************/
975		1131
976	static void NOINLINE	1132	static void
977	transfer_check (pTHX_ struct coro prev, struct coro next)	1133	transfer_check (pTHX_ struct coro prev, struct coro next)
978	{	1134	{
979	if (prev != next)	1135	if (expect_true (prev != next))
980	{	1136	{
981	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1137	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
982	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1138	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
983		1139
984	if (next->flags & CF_RUNNING)	1140	if (expect_false (next->flags & CF_RUNNING))
985	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1141	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
986		1142
987	if (next->flags & CF_DESTROYED)	1143	if (expect_false (next->flags & CF_DESTROYED))
988	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1144	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
989		1145
		1146	#if !PERL_VERSION_ATLEAST (5,10,0)
990	if (PL_lex_state != LEX_NOTPARSING)	1147	if (expect_false (PL_lex_state != LEX_NOTPARSING))
991	croak ("Coro::State::transfer called while parsing, but this is not supported");	1148	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1149	#endif
992	}	1150	}
993	}	1151	}
994		1152
995	/* always use the TRANSFER macro */	1153	/* always use the TRANSFER macro */
996	static void NOINLINE	1154	static void NOINLINE
997	transfer (pTHX_ struct coro prev, struct coro next)	1155	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
998	{	1156	{
999	dSTACKLEVEL;	1157	dSTACKLEVEL;
		1158	static volatile int has_throw;
1000		1159
1001	/* sometimes transfer is only called to set idle_sp */	1160	/* sometimes transfer is only called to set idle_sp */
1002	if (!next)	1161	if (expect_false (!next))
1003	{	1162	{
1004	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1163	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1005	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1164	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1006	}	1165	}
1007	else if (prev != next)	1166	else if (expect_true (prev != next))
1008	{	1167	{
1009	coro_cctx *prev__cctx;	1168	coro_cctx *prev__cctx;
1010		1169
1011	if (prev->flags & CF_NEW)	1170	if (expect_false (prev->flags & CF_NEW))
1012	{	1171	{
1013	/* create a new empty context */	1172	/* create a new empty context */
1014	Newz (0, prev->cctx, 1, coro_cctx);	1173	Newz (0, prev->cctx, 1, coro_cctx);
1015	prev->flags &= ~CF_NEW;	1174	prev->flags &= ~CF_NEW;
1016	prev->flags \|= CF_RUNNING;	1175	prev->flags \|= CF_RUNNING;
…		…
1019	prev->flags &= ~CF_RUNNING;	1178	prev->flags &= ~CF_RUNNING;
1020	next->flags \|= CF_RUNNING;	1179	next->flags \|= CF_RUNNING;
1021		1180
1022	LOCK;	1181	LOCK;
1023		1182
		1183	/* first get rid of the old state */
		1184	save_perl (aTHX_ prev);
		1185
1024	if (next->flags & CF_NEW)	1186	if (expect_false (next->flags & CF_NEW))
1025	{	1187	{
1026	/* need to start coroutine */	1188	/* need to start coroutine */
1027	next->flags &= ~CF_NEW;	1189	next->flags &= ~CF_NEW;
1028	/* first get rid of the old state */
1029	save_perl (aTHX_ prev);
1030	/* setup coroutine call */	1190	/* setup coroutine call */
1031	coro_setup (aTHX_ next);	1191	coro_setup (aTHX_ next);
1032	}	1192	}
1033	else	1193	else
1034	{
1035	/* coroutine already started */
1036	save_perl (aTHX_ prev);
1037	load_perl (aTHX_ next);	1194	load_perl (aTHX_ next);
1038	}
1039		1195
1040	prev__cctx = prev->cctx;	1196	prev__cctx = prev->cctx;
1041		1197
1042	/* possibly "free" the cctx */	1198	/* possibly "free" the cctx */
1043	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1199	if (expect_true (
		1200	prev__cctx->idle_sp == STACKLEVEL
		1201	&& !(prev__cctx->flags & CC_TRACE)
		1202	&& !force_cctx
		1203	))
1044	{	1204	{
1045	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1205	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1046	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1206	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1047		1207
1048	prev->cctx = 0;	1208	prev->cctx = 0;
1049		1209
1050	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1210	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1211	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1051	if (CCTX_EXPIRED (prev__cctx))	1212	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1213	if (!next->cctx)
1052	next->cctx = cctx_get (aTHX);	1214	next->cctx = cctx_get (aTHX);
1053		1215
1054	cctx_put (prev__cctx);	1216	cctx_put (prev__cctx);
1055	}	1217	}
1056		1218
1057	++next->usecount;	1219	++next->usecount;
1058		1220
1059	if (!next->cctx)	1221	if (expect_true (!next->cctx))
1060	next->cctx = cctx_get (aTHX);	1222	next->cctx = cctx_get (aTHX);
1061		1223
		1224	has_throw = !!next->throw;
		1225
1062	if (prev__cctx != next->cctx)	1226	if (expect_false (prev__cctx != next->cctx))
1063	{	1227	{
1064	prev__cctx->top_env = PL_top_env;	1228	prev__cctx->top_env = PL_top_env;
1065	PL_top_env = next->cctx->top_env;	1229	PL_top_env = next->cctx->top_env;
1066	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1230	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1067	}	1231	}
1068		1232
1069	free_coro_mortal (aTHX);	1233	free_coro_mortal (aTHX);
1070	UNLOCK;	1234	UNLOCK;
		1235
		1236	if (expect_false (has_throw))
		1237	{
		1238	struct coro *coro = SvSTATE (coro_current);
		1239
		1240	if (coro->throw)
		1241	{
		1242	SV *exception = coro->throw;
		1243	coro->throw = 0;
		1244	sv_setsv (ERRSV, exception);
		1245	croak (0);
		1246	}
		1247	}
1071	}	1248	}
1072	}	1249	}
1073		1250
1074	struct transfer_args	1251	struct transfer_args
1075	{	1252	{
1076	struct coro prev, next;	1253	struct coro prev, next;
1077	};	1254	};
1078		1255
1079	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1256	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1080	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1257	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1081		1258
1082	/ high level stuff ******************************************************/	1259	/ high level stuff ******************************************************/
1083		1260
1084	static int	1261	static int
…		…
1110	save_perl (aTHX_ &temp);	1287	save_perl (aTHX_ &temp);
1111	load_perl (aTHX_ coro);	1288	load_perl (aTHX_ coro);
1112		1289
1113	coro_destroy (aTHX_ coro);	1290	coro_destroy (aTHX_ coro);
1114		1291
1115	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1292	load_perl (aTHX_ &temp);
1116		1293
1117	coro->mainstack = 0;	1294	coro->slot = 0;
1118	}	1295	}
1119		1296
1120	cctx_destroy (coro->cctx);	1297	cctx_destroy (coro->cctx);
1121	SvREFCNT_dec (coro->args);	1298	SvREFCNT_dec (coro->args);
1122		1299
…		…
1178	{	1355	{
1179	dTHX;	1356	dTHX;
1180	struct transfer_args ta;	1357	struct transfer_args ta;
1181		1358
1182	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1359	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1183	TRANSFER (ta);	1360	TRANSFER (ta, 1);
1184	}	1361	}
1185		1362
1186	/ Coro ******************************************************************/	1363	/ Coro ******************************************************************/
1187		1364
1188	static void	1365	static void
…		…
1190	{	1367	{
1191	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1368	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1192	}	1369	}
1193		1370
1194	static SV *	1371	static SV *
1195	coro_deq (pTHX_ int min_prio)	1372	coro_deq (pTHX)
1196	{	1373	{
1197	int prio = PRIO_MAX - PRIO_MIN;	1374	int prio;
1198		1375
1199	min_prio -= PRIO_MIN;
1200	if (min_prio < 0)
1201	min_prio = 0;
1202
1203	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1376	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1204	if (AvFILLp (coro_ready [prio]) >= 0)	1377	if (AvFILLp (coro_ready [prio]) >= 0)
1205	return av_shift (coro_ready [prio]);	1378	return av_shift (coro_ready [prio]);
1206		1379
1207	return 0;	1380	return 0;
1208	}	1381	}
…		…
1210	static int	1383	static int
1211	api_ready (SV *coro_sv)	1384	api_ready (SV *coro_sv)
1212	{	1385	{
1213	dTHX;	1386	dTHX;
1214	struct coro *coro;	1387	struct coro *coro;
		1388	SV *sv_hook;
		1389	void (*xs_hook)(void);
1215		1390
1216	if (SvROK (coro_sv))	1391	if (SvROK (coro_sv))
1217	coro_sv = SvRV (coro_sv);	1392	coro_sv = SvRV (coro_sv);
1218		1393
1219	coro = SvSTATE (coro_sv);	1394	coro = SvSTATE (coro_sv);
…		…
1222	return 0;	1397	return 0;
1223		1398
1224	coro->flags \|= CF_READY;	1399	coro->flags \|= CF_READY;
1225		1400
1226	LOCK;	1401	LOCK;
		1402
		1403	sv_hook = coro_nready ? 0 : coro_readyhook;
		1404	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1405
1227	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1406	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1228	++coro_nready;	1407	++coro_nready;
		1408
1229	UNLOCK;	1409	UNLOCK;
		1410
		1411	if (sv_hook)
		1412	{
		1413	dSP;
		1414
		1415	ENTER;
		1416	SAVETMPS;
		1417
		1418	PUSHMARK (SP);
		1419	PUTBACK;
		1420	call_sv (sv_hook, G_DISCARD);
		1421	SPAGAIN;
		1422
		1423	FREETMPS;
		1424	LEAVE;
		1425	}
		1426
		1427	if (xs_hook)
		1428	xs_hook ();
1230		1429
1231	return 1;	1430	return 1;
1232	}	1431	}
1233		1432
1234	static int	1433	static int
…		…
1244	SV prev_sv, next_sv;	1443	SV prev_sv, next_sv;
1245		1444
1246	for (;;)	1445	for (;;)
1247	{	1446	{
1248	LOCK;	1447	LOCK;
1249	next_sv = coro_deq (aTHX_ PRIO_MIN);	1448	next_sv = coro_deq (aTHX);
1250		1449
1251	/* nothing to schedule: call the idle handler */	1450	/* nothing to schedule: call the idle handler */
1252	if (!next_sv)	1451	if (expect_false (!next_sv))
1253	{	1452	{
1254	dSP;	1453	dSP;
1255	UNLOCK;	1454	UNLOCK;
1256		1455
1257	ENTER;	1456	ENTER;
1258	SAVETMPS;	1457	SAVETMPS;
1259		1458
1260	PUSHMARK (SP);	1459	PUSHMARK (SP);
1261	PUTBACK;	1460	PUTBACK;
1262	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1461	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1462	SPAGAIN;
1263		1463
1264	FREETMPS;	1464	FREETMPS;
1265	LEAVE;	1465	LEAVE;
1266	continue;	1466	continue;
1267	}	1467	}
1268		1468
1269	ta->next = SvSTATE (next_sv);	1469	ta->next = SvSTATE (next_sv);
1270		1470
1271	/* cannot transfer to destroyed coros, skip and look for next */	1471	/* cannot transfer to destroyed coros, skip and look for next */
1272	if (ta->next->flags & CF_DESTROYED)	1472	if (expect_false (ta->next->flags & CF_DESTROYED))
1273	{	1473	{
1274	UNLOCK;	1474	UNLOCK;
1275	SvREFCNT_dec (next_sv);	1475	SvREFCNT_dec (next_sv);
1276	/* coro_nready is already taken care of by destroy */	1476	/* coro_nready is already taken care of by destroy */
1277	continue;	1477	continue;
…		…
1322	{	1522	{
1323	dTHX;	1523	dTHX;
1324	struct transfer_args ta;	1524	struct transfer_args ta;
1325		1525
1326	prepare_schedule (aTHX_ &ta);	1526	prepare_schedule (aTHX_ &ta);
1327	TRANSFER (ta);	1527	TRANSFER (ta, 1);
1328	}	1528	}
1329		1529
1330	static int	1530	static int
1331	api_cede (void)	1531	api_cede (void)
1332	{	1532	{
1333	dTHX;	1533	dTHX;
1334	struct transfer_args ta;	1534	struct transfer_args ta;
1335		1535
1336	prepare_cede (aTHX_ &ta);	1536	prepare_cede (aTHX_ &ta);
1337		1537
1338	if (ta.prev != ta.next)	1538	if (expect_true (ta.prev != ta.next))
1339	{	1539	{
1340	TRANSFER (ta);	1540	TRANSFER (ta, 1);
1341	return 1;	1541	return 1;
1342	}	1542	}
1343	else	1543	else
1344	return 0;	1544	return 0;
1345	}	1545	}
…		…
1350	dTHX;	1550	dTHX;
1351	struct transfer_args ta;	1551	struct transfer_args ta;
1352		1552
1353	if (prepare_cede_notself (aTHX_ &ta))	1553	if (prepare_cede_notself (aTHX_ &ta))
1354	{	1554	{
1355	TRANSFER (ta);	1555	TRANSFER (ta, 1);
1356	return 1;	1556	return 1;
1357	}	1557	}
1358	else	1558	else
1359	return 0;	1559	return 0;
1360	}	1560	}
…		…
1379	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1579	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1380		1580
1381	if (coro->flags & CF_RUNNING)	1581	if (coro->flags & CF_RUNNING)
1382	PL_runops = RUNOPS_DEFAULT;	1582	PL_runops = RUNOPS_DEFAULT;
1383	else	1583	else
1384	coro->runops = RUNOPS_DEFAULT;	1584	coro->slot->runops = RUNOPS_DEFAULT;
1385	}	1585	}
1386	}	1586	}
1387		1587
1388	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1588	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1389		1589
…		…
1396	#endif	1596	#endif
1397	BOOT_PAGESIZE;	1597	BOOT_PAGESIZE;
1398		1598
1399	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1599	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1400	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1600	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1601
		1602	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1603	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1604	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1605	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1606
		1607	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1608	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1609	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1401		1610
1402	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1611	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1403		1612
1404	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1613	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1405	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1614	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1410	main_top_env = PL_top_env;	1619	main_top_env = PL_top_env;
1411		1620
1412	while (main_top_env->je_prev)	1621	while (main_top_env->je_prev)
1413	main_top_env = main_top_env->je_prev;	1622	main_top_env = main_top_env->je_prev;
1414		1623
1415	coroapi.ver = CORO_API_VERSION;	1624	coroapi.ver = CORO_API_VERSION;
		1625	coroapi.rev = CORO_API_REVISION;
1416	coroapi.transfer = api_transfer;	1626	coroapi.transfer = api_transfer;
1417		1627
1418	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1628	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1419	}	1629	}
1420		1630
1421	SV *	1631	SV *
1422	new (char *klass, ...)	1632	new (char *klass, ...)
1423	CODE:	1633	CODE:
1424	{	1634	{
1425	struct coro *coro;	1635	struct coro *coro;
		1636	MAGIC *mg;
1426	HV *hv;	1637	HV *hv;
1427	int i;	1638	int i;
1428		1639
1429	Newz (0, coro, 1, struct coro);	1640	Newz (0, coro, 1, struct coro);
1430	coro->args = newAV ();	1641	coro->args = newAV ();
…		…
1433	if (coro_first) coro_first->prev = coro;	1644	if (coro_first) coro_first->prev = coro;
1434	coro->next = coro_first;	1645	coro->next = coro_first;
1435	coro_first = coro;	1646	coro_first = coro;
1436		1647
1437	coro->hv = hv = newHV ();	1648	coro->hv = hv = newHV ();
1438	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1649	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1650	mg->mg_flags \|= MGf_DUP;
1439	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1651	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1440		1652
1441	av_extend (coro->args, items - 1);	1653	av_extend (coro->args, items - 1);
1442	for (i = 1; i < items; i++)	1654	for (i = 1; i < items; i++)
1443	av_push (coro->args, newSVsv (ST (i)));	1655	av_push (coro->args, newSVsv (ST (i)));
…		…
1457	Coro::cede_notself = 4	1669	Coro::cede_notself = 4
1458	CODE:	1670	CODE:
1459	{	1671	{
1460	struct transfer_args ta;	1672	struct transfer_args ta;
1461		1673
		1674	PUTBACK;
1462	switch (ix)	1675	switch (ix)
1463	{	1676	{
1464	case 0:	1677	case 0:
1465	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1678	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1466	ta.next = 0;	1679	ta.next = 0;
…		…
1485	if (!prepare_cede_notself (aTHX_ &ta))	1698	if (!prepare_cede_notself (aTHX_ &ta))
1486	XSRETURN_EMPTY;	1699	XSRETURN_EMPTY;
1487		1700
1488	break;	1701	break;
1489	}	1702	}
		1703	SPAGAIN;
1490		1704
1491	BARRIER;	1705	BARRIER;
		1706	PUTBACK;
1492	TRANSFER (ta);	1707	TRANSFER (ta, 0);
1493		1708	SPAGAIN; /* might be the sp of a different coroutine now */
1494	if (GIMME_V != G_VOID && ta.next != ta.prev)	1709	/* be extra careful not to ever do anything after TRANSFER */
1495	XSRETURN_YES;
1496	}	1710	}
1497		1711
1498	bool	1712	bool
1499	_destroy (SV *coro_sv)	1713	_destroy (SV *coro_sv)
1500	CODE:	1714	CODE:
1501	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1715	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1502	OUTPUT:	1716	OUTPUT:
1503	RETVAL	1717	RETVAL
1504		1718
1505	void	1719	void
1506	_exit (code)	1720	_exit (int code)
1507	int code
1508	PROTOTYPE: $	1721	PROTOTYPE: $
1509	CODE:	1722	CODE:
1510	_exit (code);	1723	_exit (code);
1511		1724
1512	int	1725	int
…		…
1549	CODE:	1762	CODE:
1550	{	1763	{
1551	if (coro->mainstack)	1764	if (coro->mainstack)
1552	{	1765	{
1553	struct coro temp;	1766	struct coro temp;
1554	Zero (&temp, 1, struct coro);
1555		1767
1556	if (!(coro->flags & CF_RUNNING))	1768	if (!(coro->flags & CF_RUNNING))
1557	{	1769	{
		1770	PUTBACK;
1558	save_perl (aTHX_ &temp);	1771	save_perl (aTHX_ &temp);
1559	load_perl (aTHX_ coro);	1772	load_perl (aTHX_ coro);
1560	}	1773	}
1561		1774
1562	{	1775	{
1563	dSP;	1776	dSP;
1564	ENTER;	1777	ENTER;
1565	SAVETMPS;	1778	SAVETMPS;
		1779	PUTBACK;
		1780	PUSHSTACK;
1566	PUSHMARK (SP);	1781	PUSHMARK (SP);
1567	PUTBACK;	1782
1568	if (ix)	1783	if (ix)
1569	eval_sv (coderef, 0);	1784	eval_sv (coderef, 0);
1570	else	1785	else
1571	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1786	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1787
		1788	POPSTACK;
1572	SPAGAIN;	1789	SPAGAIN;
1573	FREETMPS;	1790	FREETMPS;
1574	LEAVE;	1791	LEAVE;
1575	PUTBACK;	1792	PUTBACK;
1576	}	1793	}
1577		1794
1578	if (!(coro->flags & CF_RUNNING))	1795	if (!(coro->flags & CF_RUNNING))
1579	{	1796	{
1580	save_perl (aTHX_ coro);	1797	save_perl (aTHX_ coro);
1581	load_perl (aTHX_ &temp);	1798	load_perl (aTHX_ &temp);
		1799	SPAGAIN;
1582	}	1800	}
1583	}	1801	}
1584	}	1802	}
1585		1803
1586	SV *	1804	SV *
…		…
1598		1816
1599	void	1817	void
1600	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1818	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1601		1819
1602	SV *	1820	SV *
1603	has_stack (Coro::State coro)	1821	has_cctx (Coro::State coro)
1604	PROTOTYPE: $	1822	PROTOTYPE: $
1605	CODE:	1823	CODE:
1606	RETVAL = boolSV (!!coro->cctx);	1824	RETVAL = boolSV (!!coro->cctx);
1607	OUTPUT:	1825	OUTPUT:
1608	RETVAL	1826	RETVAL
…		…
1627	case 1: RETVAL = coro->usecount; break;	1845	case 1: RETVAL = coro->usecount; break;
1628	}	1846	}
1629	OUTPUT:	1847	OUTPUT:
1630	RETVAL	1848	RETVAL
1631		1849
		1850	void
		1851	force_cctx ()
		1852	CODE:
		1853	struct coro *coro = SvSTATE (coro_current);
		1854	coro->cctx->idle_sp = 0;
1632		1855
1633	MODULE = Coro::State PACKAGE = Coro	1856	MODULE = Coro::State PACKAGE = Coro
1634		1857
1635	BOOT:	1858	BOOT:
1636	{	1859	{
1637	int i;	1860	int i;
1638		1861
1639	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1640	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1641	av_async_pool = get_av ("Coro::async_pool", TRUE);	1862	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1863	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1864	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1642		1865
1643	coro_current = get_sv ("Coro::current", FALSE);	1866	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1644	SvREADONLY_on (coro_current);	1867	SvREADONLY_on (coro_current);
1645		1868
1646	coro_stash = gv_stashpv ("Coro", TRUE);	1869	coro_stash = gv_stashpv ("Coro", TRUE);
1647		1870
1648	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1871	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1649	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1872	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1650	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1873	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1651	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1874	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1654		1877
1655	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1878	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1656	coro_ready[i] = newAV ();	1879	coro_ready[i] = newAV ();
1657		1880
1658	{	1881	{
1659	SV *sv = perl_get_sv("Coro::API", 1);	1882	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1883	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1660		1884
1661	coroapi.schedule = api_schedule;	1885	coroapi.schedule = api_schedule;
1662	coroapi.cede = api_cede;	1886	coroapi.cede = api_cede;
1663	coroapi.cede_notself = api_cede_notself;	1887	coroapi.cede_notself = api_cede_notself;
1664	coroapi.ready = api_ready;	1888	coroapi.ready = api_ready;
…		…
1677	PROTOTYPE: $	1901	PROTOTYPE: $
1678	CODE:	1902	CODE:
1679	SvREFCNT_dec (SvRV (coro_current));	1903	SvREFCNT_dec (SvRV (coro_current));
1680	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1904	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1681		1905
		1906	void
		1907	_set_readyhook (SV *hook)
		1908	PROTOTYPE: $
		1909	CODE:
		1910	LOCK;
		1911	SvREFCNT_dec (coro_readyhook);
		1912	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1913	UNLOCK;
		1914
1682	int	1915	int
1683	prio (Coro::State coro, int newprio = 0)	1916	prio (Coro::State coro, int newprio = 0)
1684	ALIAS:	1917	ALIAS:
1685	nice = 1	1918	nice = 1
1686	CODE:	1919	CODE:
…		…
1715	CODE:	1948	CODE:
1716	RETVAL = coro_nready;	1949	RETVAL = coro_nready;
1717	OUTPUT:	1950	OUTPUT:
1718	RETVAL	1951	RETVAL
1719		1952
		1953	void
		1954	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1955	PROTOTYPE: $;$
		1956	CODE:
		1957	SvREFCNT_dec (self->throw);
		1958	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1959
		1960	void
		1961	swap_defsv (Coro::State self)
		1962	PROTOTYPE: $
		1963	ALIAS:
		1964	swap_defav = 1
		1965	CODE:
		1966	if (!self->slot)
		1967	croak ("cannot swap state with coroutine that has no saved state");
		1968	else
		1969	{
		1970	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1971	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1972
		1973	SV tmp = src; src = dst; *dst = tmp;
		1974	}
		1975
1720	# for async_pool speedup	1976	# for async_pool speedup
1721	void	1977	void
1722	_pool_1 (SV *cb)	1978	_pool_1 (SV *cb)
1723	CODE:	1979	CODE:
1724	{	1980	{
…		…
1728	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1984	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1729	AV *invoke_av;	1985	AV *invoke_av;
1730	int i, len;	1986	int i, len;
1731		1987
1732	if (!invoke)	1988	if (!invoke)
		1989	{
		1990	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1733	croak ("\3terminate\2\n");	1991	croak ("\3async_pool terminate\2\n");
		1992	}
1734		1993
1735	SvREFCNT_dec (coro->saved_deffh);	1994	SvREFCNT_dec (coro->saved_deffh);
1736	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1995	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1737		1996
1738	hv_store (hv, "desc", sizeof ("desc") - 1,	1997	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1764	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2023	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1765	coro->saved_deffh = 0;	2024	coro->saved_deffh = 0;
1766		2025
1767	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2026	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1768	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2027	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2028	{
		2029	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1769	croak ("\3terminate\2\n");	2030	croak ("\3async_pool terminate\2\n");
		2031	}
1770		2032
1771	av_clear (GvAV (PL_defgv));	2033	av_clear (GvAV (PL_defgv));
1772	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2034	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1773	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2035	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1774		2036
…		…
1813	PL_laststype = data->laststype;	2075	PL_laststype = data->laststype;
1814	PL_laststatval = data->laststatval;	2076	PL_laststatval = data->laststatval;
1815	PL_statcache = data->statcache;	2077	PL_statcache = data->statcache;
1816	}	2078	}
1817		2079
		2080
		2081	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2082
		2083	BOOT:
		2084	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2085
		2086	SV *
		2087	_schedule (...)
		2088	PROTOTYPE: @
		2089	CODE:
		2090	{
		2091	static int incede;
		2092
		2093	api_cede_notself ();
		2094
		2095	++incede;
		2096	while (coro_nready >= incede && api_cede ())
		2097	;
		2098
		2099	sv_setsv (sv_activity, &PL_sv_undef);
		2100	if (coro_nready >= incede)
		2101	{
		2102	PUSHMARK (SP);
		2103	PUTBACK;
		2104	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2105	SPAGAIN;
		2106	}
		2107
		2108	--incede;
		2109	}
		2110

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Comparing Coro/Coro/State.xs (file contents): Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC vs. Revision 1.237 by root, Fri May 23 00:27:06 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC vs.
Revision 1.237 by root, Fri May 23 00:27:06 2008 UTC