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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.189 by root, Fri Oct 5 20:38:43 2007 UTC vs.
Revision 1.241 by root, Mon Jul 21 02:39:15 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 */
136		164
137	static GV irsgv; / $/ */	165	static GV irsgv; / $/ */
138	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 */
139		170
140	/* async_pool helper stuff */	171	/* async_pool helper stuff */
141	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
142	static SV *sv_pool_size;	173	static SV *sv_pool_size;
143	static AV *av_async_pool;	174	static AV *av_async_pool;
		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
144		178
145	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
146	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
147		181
148	enum {	182	enum {
…		…
179	CF_READY = 0x0002, /* coroutine is ready */	213	CF_READY = 0x0002, /* coroutine is ready */
180	CF_NEW = 0x0004, /* has never been switched to */	214	CF_NEW = 0x0004, /* has never been switched to */
181	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	215	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
182	};	216	};
183		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
184	/* this is a structure representing a perl-level coroutine */	231	/* this is a structure representing a perl-level coroutine */
185	struct coro {	232	struct coro {
186	/* the c coroutine allocated to this perl coroutine, if any */	233	/* the c coroutine allocated to this perl coroutine, if any */
187	coro_cctx *cctx;	234	coro_cctx *cctx;
188		235
		236	/* process data */
		237	AV *mainstack;
		238	perl_slots slot; / basically the saved sp */
		239
189	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
190	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
191	int refcnt;
192	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
193		243	HV hv; / the perl hash associated with this coro, if any */
194	/* optionally saved, might be zero */
195	AV defav; / @_ */
196	SV defsv; / $_ */
197	SV errsv; / $@ */
198	SV deffh; / default filehandle */
199	SV irssv; / $/ */
200	SV irssv_sv; / real $/ cache */
201
202	#define VAR(name,type) type name;
203	# include "state.h"
204	#undef VAR
205		244
206	/* statistics */	245	/* statistics */
207	int usecount; /* number of transfers to this coro */	246	int usecount; /* number of transfers to this coro */
208		247
209	/* coro process data */	248	/* coro process data */
210	int prio;	249	int prio;
211	//SV *throw;	250	SV throw; / exception to be thrown */
212		251
213	/* async_pool */	252	/* async_pool */
214	SV *saved_deffh;	253	SV *saved_deffh;
215		254
216	/* linked list */	255	/* linked list */
217	struct coro next, prev;	256	struct coro next, prev;
218	HV hv; / the perl hash associated with this coro, if any */
219	};	257	};
220		258
221	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
222	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
223		261
…		…
230	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
231	#define PRIO_MIN -4	269	#define PRIO_MIN -4
232		270
233	/* for Coro.pm */	271	/* for Coro.pm */
234	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
235	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
236	static int coro_nready;	275	static int coro_nready;
237	static struct coro *coro_first;	276	static struct coro *coro_first;
238		277
239	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
240		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
241	static AV *	310	static AV *
242	coro_clone_padlist (pTHX_ CV *cv)	311	coro_clone_padlist (pTHX_ CV *cv)
243	{	312	{
244	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
245	AV newpadlist, newpad;	314	AV newpadlist, newpad;
246		315
247	newpadlist = newAV ();	316	newpadlist = newAV ();
248	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
249	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
250	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
251	#else	320	#else
252	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
253	#endif	322	#endif
254	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
292		361
293	/* casting is fun. */	362	/* casting is fun. */
294	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
295	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
296		365
297	SvREFCNT_dec (av);
298
299	return 0;	366	return 0;
300	}	367	}
301		368
302	#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
303		371
304	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	};
305		376
306	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
307	SvMAGIC (cv) \	378	SvMAGIC (sv) \
308	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
309	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
310	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
311	: 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)
312		386
313	static struct coro *	387	static struct coro *
314	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
315	{	389	{
316	HV *stash;	390	HV *stash;
317	MAGIC *mg;	391	MAGIC *mg;
318		392
319	if (SvROK (coro))	393	if (SvROK (coro))
320	coro = SvRV (coro);	394	coro = SvRV (coro);
321		395
322	if (SvTYPE (coro) != SVt_PVHV)	396	if (expect_false (SvTYPE (coro) != SVt_PVHV))
323	croak ("Coro::State object required");	397	croak ("Coro::State object required");
324		398
325	stash = SvSTASH (coro);	399	stash = SvSTASH (coro);
326	if (stash != coro_stash && stash != coro_state_stash)	400	if (expect_false (stash != coro_stash && stash != coro_state_stash))
327	{	401	{
328	/* very slow, but rare, check */	402	/* very slow, but rare, check */
329	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
330	croak ("Coro::State object required");	404	croak ("Coro::State object required");
331	}	405	}
332		406
333	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
334	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
335	}	409	}
336		410
337	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
338		412
339	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
340	static void	414	static void
341	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
342	{	416	{
343	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
344	AV *av;	418	AV *av;
345		419
346	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
347	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
348	else	422	else
349	{	423	{
350	#if CORO_PREFER_PERL_FUNCTIONS	424	#if CORO_PREFER_PERL_FUNCTIONS
351	/* this is probably cleaner, but also slower? */	425	/* this is probably cleaner, but also slower? */
…		…
360	}	434	}
361		435
362	static void	436	static void
363	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
364	{	438	{
365	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
366	AV *av;	440	AV *av;
367		441
368	if (!mg)	442	if (expect_false (!mg))
369	{	443	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
370	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
371	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
372	mg->mg_virtual = &vtbl_coro;
373	mg->mg_obj = (SV *)newAV ();
374	}
375		444
376	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
377		446
378	if (AvFILLp (av) >= AvMAX (av))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
379	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
380		449
381	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	450	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
382	}	451	}
383		452
384	/ load & save, init *****************************************************/	453	/ load & save, init *****************************************************/
385		454
386	static void	455	static void
387	load_perl (pTHX_ Coro__State c)	456	load_perl (pTHX_ Coro__State c)
388	{	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
389	#define VAR(name,type) PL_ ## name = c->name;	468	#define VAR(name,type) PL_ ## name = slot->name;
390	# include "state.h"	469	# include "state.h"
391	#undef VAR	470	#undef VAR
392
393	GvSV (PL_defgv) = c->defsv;
394	GvAV (PL_defgv) = c->defav;
395	GvSV (PL_errgv) = c->errsv;
396	GvSV (irsgv) = c->irssv_sv;
397		471
398	{	472	{
399	dSP;	473	dSP;
		474
400	CV *cv;	475	CV *cv;
401		476
402	/* now do the ugly restore mess */	477	/* now do the ugly restore mess */
403	while ((cv = (CV *)POPs))	478	while (expect_true (cv = (CV *)POPs))
404	{	479	{
405	put_padlist (aTHX_ cv); /* mark this padlist as available */	480	put_padlist (aTHX_ cv); /* mark this padlist as available */
406	CvDEPTH (cv) = PTR2IV (POPs);	481	CvDEPTH (cv) = PTR2IV (POPs);
407	CvPADLIST (cv) = (AV *)POPs;	482	CvPADLIST (cv) = (AV *)POPs;
408	}	483	}
…		…
427		502
428	XPUSHs (Nullsv);	503	XPUSHs (Nullsv);
429	/* this loop was inspired by pp_caller */	504	/* this loop was inspired by pp_caller */
430	for (;;)	505	for (;;)
431	{	506	{
432	while (cxix >= 0)	507	while (expect_true (cxix >= 0))
433	{	508	{
434	PERL_CONTEXT *cx = &ccstk[cxix--];	509	PERL_CONTEXT *cx = &ccstk[cxix--];
435		510
436	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	511	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
437	{	512	{
438	CV *cv = cx->blk_sub.cv;	513	CV *cv = cx->blk_sub.cv;
439		514
440	if (CvDEPTH (cv))	515	if (expect_true (CvDEPTH (cv)))
441	{	516	{
442	EXTEND (SP, 3);	517	EXTEND (SP, 3);
443	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
444	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
445	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
446		521
447	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
448	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
449	}	524	}
450	}	525	}
451	}	526	}
452		527
453	if (top_si->si_type == PERLSI_MAIN)	528	if (expect_true (top_si->si_type == PERLSI_MAIN))
454	break;	529	break;
455		530
456	top_si = top_si->si_prev;	531	top_si = top_si->si_prev;
457	ccstk = top_si->si_cxstack;	532	ccstk = top_si->si_cxstack;
458	cxix = top_si->si_cxix;	533	cxix = top_si->si_cxix;
459	}	534	}
460		535
461	PUTBACK;	536	PUTBACK;
462	}	537	}
463		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
464	c->defav = GvAV (PL_defgv);	556	slot->defav = GvAV (PL_defgv);
465	c->defsv = DEFSV;	557	slot->defsv = DEFSV;
466	c->errsv = ERRSV;	558	slot->errsv = ERRSV;
467	c->irssv_sv = GvSV (irsgv);	559	slot->irsgv = GvSV (irsgv);
468		560
469	#define VAR(name,type)c->name = PL_ ## name;	561	#define VAR(name,type) slot->name = PL_ ## name;
470	# include "state.h"	562	# include "state.h"
471	#undef VAR	563	#undef VAR
		564	}
472	}	565	}
473		566
474	/*	567	/*
475	* allocate various perl stacks. This is an exact copy	568	* allocate various perl stacks. This is an exact copy
476	* of perl.c:init_stacks, except that it uses less memory	569	* of perl.c:init_stacks, except that it uses less memory
…		…
481	# define coro_init_stacks init_stacks	574	# define coro_init_stacks init_stacks
482	#else	575	#else
483	static void	576	static void
484	coro_init_stacks (pTHX)	577	coro_init_stacks (pTHX)
485	{	578	{
486	PL_curstackinfo = new_stackinfo(64, 6);	579	PL_curstackinfo = new_stackinfo(32, 8);
487	PL_curstackinfo->si_type = PERLSI_MAIN;	580	PL_curstackinfo->si_type = PERLSI_MAIN;
488	PL_curstack = PL_curstackinfo->si_stack;	581	PL_curstack = PL_curstackinfo->si_stack;
489	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	582	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
490		583
491	PL_stack_base = AvARRAY(PL_curstack);	584	PL_stack_base = AvARRAY(PL_curstack);
492	PL_stack_sp = PL_stack_base;	585	PL_stack_sp = PL_stack_base;
493	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	586	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
494		587
495	New(50,PL_tmps_stack,64,SV*);	588	New(50,PL_tmps_stack,32,SV*);
496	PL_tmps_floor = -1;	589	PL_tmps_floor = -1;
497	PL_tmps_ix = -1;	590	PL_tmps_ix = -1;
498	PL_tmps_max = 64;	591	PL_tmps_max = 32;
499		592
500	New(54,PL_markstack,16,I32);	593	New(54,PL_markstack,16,I32);
501	PL_markstack_ptr = PL_markstack;	594	PL_markstack_ptr = PL_markstack;
502	PL_markstack_max = PL_markstack + 16;	595	PL_markstack_max = PL_markstack + 16;
503		596
504	#ifdef SET_MARK_OFFSET	597	#ifdef SET_MARK_OFFSET
505	SET_MARK_OFFSET;	598	SET_MARK_OFFSET;
506	#endif	599	#endif
507		600
508	New(54,PL_scopestack,16,I32);	601	New(54,PL_scopestack,8,I32);
509	PL_scopestack_ix = 0;	602	PL_scopestack_ix = 0;
510	PL_scopestack_max = 16;	603	PL_scopestack_max = 8;
511		604
512	New(54,PL_savestack,64,ANY);	605	New(54,PL_savestack,24,ANY);
513	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
514	PL_savestack_max = 64;	607	PL_savestack_max = 24;
515		608
516	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
517	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
518	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
519	PL_retstack_max = 4;	612	PL_retstack_max = 4;
520	#endif	613	#endif
521	}	614	}
…		…
544		637
545	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
546	Safefree (PL_markstack);	639	Safefree (PL_markstack);
547	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
548	Safefree (PL_savestack);	641	Safefree (PL_savestack);
549	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
550	Safefree (PL_retstack);	643	Safefree (PL_retstack);
551	#endif	644	#endif
552	}	645	}
553		646
554	static size_t	647	static size_t
…		…
556	{	649	{
557	size_t rss = sizeof (*coro);	650	size_t rss = sizeof (*coro);
558		651
559	if (coro->mainstack)	652	if (coro->mainstack)
560	{	653	{
		654	perl_slots tmp_slot;
		655	perl_slots *slot;
		656
561	if (coro->flags & CF_RUNNING)	657	if (coro->flags & CF_RUNNING)
562	{	658	{
		659	slot = &tmp_slot;
		660
563	#define VAR(name,type)coro->name = PL_ ## name;	661	#define VAR(name,type) slot->name = PL_ ## name;
564	# include "state.h"	662	# include "state.h"
565	#undef VAR	663	#undef VAR
566	}	664	}
		665	else
		666	slot = coro->slot;
567		667
568	rss += sizeof (coro->curstackinfo);	668	rss += sizeof (slot->curstackinfo);
569	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
570	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	669	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
571	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 *);
572	rss += coro->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
573	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
574	rss += coro->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
575	rss += coro->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
576		675
577	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
578	rss += coro->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
579	#endif	678	#endif
580	}	679	}
581		680
582	return rss;	681	return rss;
583	}	682	}
584		683
585	/ 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	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		689
		690	/* apparently < 5.8.8 */
		691	#ifndef MgPV_nolen_const
		692	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		693	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		694	(const char*)(mg)->mg_ptr)
		695	#endif
		696
		697	/*
		698	* This overrides the default magic get method of %SIG elements.
		699	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		700	* and instead of tryign to save and restore the hash elements, we just provide
		701	* readback here.
		702	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		703	* not expecting this to actually change the hook. This is a potential problem
		704	* when a schedule happens then, but we ignore this.
		705	*/
		706	static int
		707	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		708	{
		709	const char *s = MgPV_nolen_const (mg);
		710
		711	if (*s == '_')
		712	{
		713	SV **svp = 0;
		714
		715	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		716	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		717
		718	if (svp)
		719	{
		720	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		721	return 0;
		722	}
		723	}
		724
		725	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		726	}
		727
		728	static int
		729	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		730	{
		731	const char *s = MgPV_nolen_const (mg);
		732
		733	if (*s == '_')
		734	{
		735	SV **svp = 0;
		736
		737	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		738	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		739
		740	if (svp)
		741	{
		742	SV old = svp;
		743	*svp = 0;
		744	SvREFCNT_dec (old);
		745	return 0;
		746	}
		747	}
		748
		749	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		750	}
		751
		752	static int
		753	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		754	{
		755	const char *s = MgPV_nolen_const (mg);
		756
		757	if (*s == '_')
		758	{
		759	SV **svp = 0;
		760
		761	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		762	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		763
		764	if (svp)
		765	{
		766	SV old = svp;
		767	*svp = newSVsv (sv);
		768	SvREFCNT_dec (old);
		769	return 0;
		770	}
		771	}
		772
		773	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		774	}
586		775
587	static void	776	static void
588	coro_setup (pTHX_ struct coro *coro)	777	coro_setup (pTHX_ struct coro *coro)
589	{	778	{
590	/*	779	/*
…		…
595	PL_runops = RUNOPS_DEFAULT;	784	PL_runops = RUNOPS_DEFAULT;
596	PL_curcop = &PL_compiling;	785	PL_curcop = &PL_compiling;
597	PL_in_eval = EVAL_NULL;	786	PL_in_eval = EVAL_NULL;
598	PL_comppad = 0;	787	PL_comppad = 0;
599	PL_curpm = 0;	788	PL_curpm = 0;
		789	PL_curpad = 0;
600	PL_localizing = 0;	790	PL_localizing = 0;
601	PL_dirty = 0;	791	PL_dirty = 0;
602	PL_restartop = 0;	792	PL_restartop = 0;
		793	#if PERL_VERSION_ATLEAST (5,10,0)
		794	PL_parser = 0;
		795	#endif
		796
		797	/* recreate the die/warn hooks */
		798	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		799	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
603		800
604	GvSV (PL_defgv) = NEWSV (0, 0);	801	GvSV (PL_defgv) = newSV (0);
605	GvAV (PL_defgv) = coro->args; coro->args = 0;	802	GvAV (PL_defgv) = coro->args; coro->args = 0;
606	GvSV (PL_errgv) = NEWSV (0, 0);	803	GvSV (PL_errgv) = newSV (0);
607	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	804	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
608	PL_rs = newSVsv (GvSV (irsgv));	805	PL_rs = newSVsv (GvSV (irsgv));
609	PL_defoutgv = SvREFCNT_inc (stdoutgv);	806	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
610		807
611	{	808	{
612	dSP;	809	dSP;
613	LOGOP myop;	810	LOGOP myop;
614		811
615	Zero (&myop, 1, LOGOP);	812	Zero (&myop, 1, LOGOP);
616	myop.op_next = Nullop;	813	myop.op_next = Nullop;
617	myop.op_flags = OPf_WANT_VOID;	814	myop.op_flags = OPf_WANT_VOID;
618		815
619	PUSHMARK (SP);	816	PUSHMARK (SP);
620	XPUSHs (av_shift (GvAV (PL_defgv)));	817	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
621	PUTBACK;	818	PUTBACK;
622	PL_op = (OP *)&myop;	819	PL_op = (OP *)&myop;
623	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	820	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
624	SPAGAIN;	821	SPAGAIN;
625	}	822	}
626		823
627	ENTER; /* necessary e.g. for dounwind */	824	/* this newly created coroutine might be run on an existing cctx which most
		825	* likely was suspended in set_stacklevel, called from entersub.
		826	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		827	* so we ENTER here for symmetry
		828	*/
		829	ENTER;
628	}	830	}
629		831
630	static void	832	static void
631	coro_destroy (pTHX_ struct coro *coro)	833	coro_destroy (pTHX_ struct coro *coro)
632	{	834	{
…		…
652	SvREFCNT_dec (GvSV (PL_errgv));	854	SvREFCNT_dec (GvSV (PL_errgv));
653	SvREFCNT_dec (PL_defoutgv);	855	SvREFCNT_dec (PL_defoutgv);
654	SvREFCNT_dec (PL_rs);	856	SvREFCNT_dec (PL_rs);
655	SvREFCNT_dec (GvSV (irsgv));	857	SvREFCNT_dec (GvSV (irsgv));
656		858
		859	SvREFCNT_dec (PL_diehook);
		860	SvREFCNT_dec (PL_warnhook);
		861
657	SvREFCNT_dec (coro->saved_deffh);	862	SvREFCNT_dec (coro->saved_deffh);
658	//SvREFCNT_dec (coro->throw);	863	SvREFCNT_dec (coro->throw);
659		864
660	coro_destroy_stacks (aTHX);	865	coro_destroy_stacks (aTHX);
661	}	866	}
662		867
663	static void	868	static void
664	free_coro_mortal (pTHX)	869	free_coro_mortal (pTHX)
665	{	870	{
666	if (coro_mortal)	871	if (expect_true (coro_mortal))
667	{	872	{
668	SvREFCNT_dec (coro_mortal);	873	SvREFCNT_dec (coro_mortal);
669	coro_mortal = 0;	874	coro_mortal = 0;
670	}	875	}
671	}	876	}
…		…
700	bot = PL_stack_base + cx->blk_oldsp + 1;	905	bot = PL_stack_base + cx->blk_oldsp + 1;
701	top = cx->blk_gimme == G_ARRAY ? SP + 1	906	top = cx->blk_gimme == G_ARRAY ? SP + 1
702	: cx->blk_gimme == G_SCALAR ? bot + 1	907	: cx->blk_gimme == G_SCALAR ? bot + 1
703	: bot;	908	: bot;
704		909
		910	av_extend (av, top - bot);
705	while (bot < top)	911	while (bot < top)
706	av_push (av, SvREFCNT_inc (*bot++));	912	av_push (av, SvREFCNT_inc (*bot++));
707		913
708	PL_runops = RUNOPS_DEFAULT;	914	PL_runops = RUNOPS_DEFAULT;
709	ENTER;	915	ENTER;
…		…
749	SAVETMPS;	955	SAVETMPS;
750	EXTEND (SP, 3);	956	EXTEND (SP, 3);
751	PUSHMARK (SP);	957	PUSHMARK (SP);
752	PUSHs (&PL_sv_yes);	958	PUSHs (&PL_sv_yes);
753	PUSHs (fullname);	959	PUSHs (fullname);
754	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	960	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
755	PUTBACK;	961	PUTBACK;
756	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	962	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
757	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	963	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
758	SPAGAIN;	964	SPAGAIN;
759	FREETMPS;	965	FREETMPS;
…		…
795		1001
796	/* inject a fake call to Coro::State::_cctx_init into the execution */	1002	/* inject a fake call to Coro::State::_cctx_init into the execution */
797	/* _cctx_init should be careful, as it could be called at almost any time */	1003	/* _cctx_init should be careful, as it could be called at almost any time */
798	/* during execution of a perl program */	1004	/* during execution of a perl program */
799	static void NOINLINE	1005	static void NOINLINE
800	prepare_cctx (pTHX_ coro_cctx *cctx)	1006	cctx_prepare (pTHX_ coro_cctx *cctx)
801	{	1007	{
802	dSP;	1008	dSP;
803	LOGOP myop;	1009	LOGOP myop;
804		1010
805	PL_top_env = &PL_start_env;	1011	PL_top_env = &PL_start_env;
…		…
823		1029
824	/*	1030	/*
825	* this is a _very_ stripped down perl interpreter ;)	1031	* this is a _very_ stripped down perl interpreter ;)
826	*/	1032	*/
827	static void	1033	static void
828	coro_run (void *arg)	1034	cctx_run (void *arg)
829	{	1035	{
830	dTHX;	1036	dTHX;
831		1037
832	/* coro_run is the alternative tail of transfer(), so unlock here. */	1038	/* cctx_run is the alternative tail of transfer(), so unlock here. */
833	UNLOCK;	1039	UNLOCK;
834		1040
835	/* we now skip the entersub that lead to transfer() */	1041	/* we now skip the entersub that lead to transfer() */
836	PL_op = PL_op->op_next;	1042	PL_op = PL_op->op_next;
837		1043
838	/* inject a fake subroutine call to cctx_init */	1044	/* inject a fake subroutine call to cctx_init */
839	prepare_cctx (aTHX_ (coro_cctx *)arg);	1045	cctx_prepare (aTHX_ (coro_cctx *)arg);
840		1046
841	/* somebody or something will hit me for both perl_run and PL_restartop */	1047	/* somebody or something will hit me for both perl_run and PL_restartop */
842	PL_restartop = PL_op;	1048	PL_restartop = PL_op;
843	perl_run (PL_curinterp);	1049	perl_run (PL_curinterp);
844		1050
…		…
863	++cctx_count;	1069	++cctx_count;
864		1070
865	Newz (0, cctx, 1, coro_cctx);	1071	Newz (0, cctx, 1, coro_cctx);
866		1072
867	#if HAVE_MMAP	1073	#if HAVE_MMAP
868
869	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1074	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
870	/* mmap supposedly does allocate-on-write for us */	1075	/* mmap supposedly does allocate-on-write for us */
871	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1076	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
872		1077
873	if (cctx->sptr != (void *)-1)	1078	if (cctx->sptr != (void *)-1)
…		…
894	stack_start = cctx->sptr;	1099	stack_start = cctx->sptr;
895	stack_size = cctx->ssize;	1100	stack_size = cctx->ssize;
896	}	1101	}
897		1102
898	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1103	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
899	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1104	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
900		1105
901	return cctx;	1106	return cctx;
902	}	1107	}
903		1108
904	static void	1109	static void
…		…
921	Safefree (cctx->sptr);	1126	Safefree (cctx->sptr);
922		1127
923	Safefree (cctx);	1128	Safefree (cctx);
924	}	1129	}
925		1130
		1131	/* wether this cctx should be destructed */
		1132	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1133
926	static coro_cctx *	1134	static coro_cctx *
927	cctx_get (pTHX)	1135	cctx_get (pTHX)
928	{	1136	{
929	while (cctx_first)	1137	while (expect_true (cctx_first))
930	{	1138	{
931	coro_cctx *cctx = cctx_first;	1139	coro_cctx *cctx = cctx_first;
932	cctx_first = cctx->next;	1140	cctx_first = cctx->next;
933	--cctx_idle;	1141	--cctx_idle;
934		1142
935	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1143	if (expect_true (!CCTX_EXPIRED (cctx)))
936	return cctx;	1144	return cctx;
937		1145
938	cctx_destroy (cctx);	1146	cctx_destroy (cctx);
939	}	1147	}
940		1148
…		…
943		1151
944	static void	1152	static void
945	cctx_put (coro_cctx *cctx)	1153	cctx_put (coro_cctx *cctx)
946	{	1154	{
947	/* free another cctx if overlimit */	1155	/* free another cctx if overlimit */
948	if (cctx_idle >= MAX_IDLE_CCTX)	1156	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
949	{	1157	{
950	coro_cctx *first = cctx_first;	1158	coro_cctx *first = cctx_first;
951	cctx_first = first->next;	1159	cctx_first = first->next;
952	--cctx_idle;	1160	--cctx_idle;
953		1161
…		…
959	cctx_first = cctx;	1167	cctx_first = cctx;
960	}	1168	}
961		1169
962	/ coroutine switching ***************************************************/	1170	/ coroutine switching ***************************************************/
963		1171
964	static void NOINLINE	1172	static void
965	transfer_check (pTHX_ struct coro prev, struct coro next)	1173	transfer_check (pTHX_ struct coro prev, struct coro next)
966	{	1174	{
967	if (prev != next)	1175	if (expect_true (prev != next))
968	{	1176	{
969	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1177	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
970	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1178	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
971		1179
972	if (next->flags & CF_RUNNING)	1180	if (expect_false (next->flags & CF_RUNNING))
973	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1181	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
974		1182
975	if (next->flags & CF_DESTROYED)	1183	if (expect_false (next->flags & CF_DESTROYED))
976	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1184	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
977		1185
		1186	#if !PERL_VERSION_ATLEAST (5,10,0)
978	if (PL_lex_state != LEX_NOTPARSING)	1187	if (expect_false (PL_lex_state != LEX_NOTPARSING))
979	croak ("Coro::State::transfer called while parsing, but this is not supported");	1188	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1189	#endif
980	}	1190	}
981	}	1191	}
982		1192
983	/* always use the TRANSFER macro */	1193	/* always use the TRANSFER macro */
984	static void NOINLINE	1194	static void NOINLINE
985	transfer (pTHX_ struct coro prev, struct coro next)	1195	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
986	{	1196	{
987	dSTACKLEVEL;	1197	dSTACKLEVEL;
		1198	static volatile int has_throw;
988		1199
989	/* sometimes transfer is only called to set idle_sp */	1200	/* sometimes transfer is only called to set idle_sp */
990	if (!next)	1201	if (expect_false (!next))
991	{	1202	{
992	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1203	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
993	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1204	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
994	}	1205	}
995	else if (prev != next)	1206	else if (expect_true (prev != next))
996	{	1207	{
997	coro_cctx *prev__cctx;	1208	coro_cctx *prev__cctx;
998		1209
999	if (prev->flags & CF_NEW)	1210	if (expect_false (prev->flags & CF_NEW))
1000	{	1211	{
1001	/* create a new empty context */	1212	/* create a new empty context */
1002	Newz (0, prev->cctx, 1, coro_cctx);	1213	Newz (0, prev->cctx, 1, coro_cctx);
1003	prev->flags &= ~CF_NEW;	1214	prev->flags &= ~CF_NEW;
1004	prev->flags \|= CF_RUNNING;	1215	prev->flags \|= CF_RUNNING;
…		…
1007	prev->flags &= ~CF_RUNNING;	1218	prev->flags &= ~CF_RUNNING;
1008	next->flags \|= CF_RUNNING;	1219	next->flags \|= CF_RUNNING;
1009		1220
1010	LOCK;	1221	LOCK;
1011		1222
		1223	/* first get rid of the old state */
		1224	save_perl (aTHX_ prev);
		1225
1012	if (next->flags & CF_NEW)	1226	if (expect_false (next->flags & CF_NEW))
1013	{	1227	{
1014	/* need to start coroutine */	1228	/* need to start coroutine */
1015	next->flags &= ~CF_NEW;	1229	next->flags &= ~CF_NEW;
1016	/* first get rid of the old state */
1017	save_perl (aTHX_ prev);
1018	/* setup coroutine call */	1230	/* setup coroutine call */
1019	coro_setup (aTHX_ next);	1231	coro_setup (aTHX_ next);
1020	}	1232	}
1021	else	1233	else
1022	{
1023	/* coroutine already started */
1024	save_perl (aTHX_ prev);
1025	load_perl (aTHX_ next);	1234	load_perl (aTHX_ next);
1026	}
1027		1235
1028	prev__cctx = prev->cctx;	1236	prev__cctx = prev->cctx;
1029		1237
1030	/* possibly "free" the cctx */	1238	/* possibly "free" the cctx */
1031	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1239	if (expect_true (
		1240	prev__cctx->idle_sp == STACKLEVEL
		1241	&& !(prev__cctx->flags & CC_TRACE)
		1242	&& !force_cctx
		1243	))
1032	{	1244	{
1033	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1245	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1034	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1246	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1035		1247
1036	prev->cctx = 0;	1248	prev->cctx = 0;
1037		1249
		1250	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1251	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1252	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1253	if (!next->cctx)
		1254	next->cctx = cctx_get (aTHX);
		1255
1038	cctx_put (prev__cctx);	1256	cctx_put (prev__cctx);
1039	}	1257	}
1040		1258
1041	++next->usecount;	1259	++next->usecount;
1042		1260
1043	if (!next->cctx)	1261	if (expect_true (!next->cctx))
1044	next->cctx = cctx_get (aTHX);	1262	next->cctx = cctx_get (aTHX);
1045		1263
		1264	has_throw = !!next->throw;
		1265
1046	if (prev__cctx != next->cctx)	1266	if (expect_false (prev__cctx != next->cctx))
1047	{	1267	{
1048	prev__cctx->top_env = PL_top_env;	1268	prev__cctx->top_env = PL_top_env;
1049	PL_top_env = next->cctx->top_env;	1269	PL_top_env = next->cctx->top_env;
1050	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1270	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1051	}	1271	}
1052		1272
1053	free_coro_mortal (aTHX);	1273	free_coro_mortal (aTHX);
1054	UNLOCK;	1274	UNLOCK;
		1275
		1276	if (expect_false (has_throw))
		1277	{
		1278	struct coro *coro = SvSTATE (coro_current);
		1279
		1280	if (coro->throw)
		1281	{
		1282	SV *exception = coro->throw;
		1283	coro->throw = 0;
		1284	sv_setsv (ERRSV, exception);
		1285	croak (0);
		1286	}
		1287	}
1055	}	1288	}
1056	}	1289	}
1057		1290
1058	struct transfer_args	1291	struct transfer_args
1059	{	1292	{
1060	struct coro prev, next;	1293	struct coro prev, next;
1061	};	1294	};
1062		1295
1063	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1296	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1064	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1297	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1065		1298
1066	/ high level stuff ******************************************************/	1299	/ high level stuff ******************************************************/
1067		1300
1068	static int	1301	static int
…		…
1094	save_perl (aTHX_ &temp);	1327	save_perl (aTHX_ &temp);
1095	load_perl (aTHX_ coro);	1328	load_perl (aTHX_ coro);
1096		1329
1097	coro_destroy (aTHX_ coro);	1330	coro_destroy (aTHX_ coro);
1098		1331
1099	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1332	load_perl (aTHX_ &temp);
1100		1333
1101	coro->mainstack = 0;	1334	coro->slot = 0;
1102	}	1335	}
1103		1336
1104	cctx_destroy (coro->cctx);	1337	cctx_destroy (coro->cctx);
1105	SvREFCNT_dec (coro->args);	1338	SvREFCNT_dec (coro->args);
1106		1339
…		…
1162	{	1395	{
1163	dTHX;	1396	dTHX;
1164	struct transfer_args ta;	1397	struct transfer_args ta;
1165		1398
1166	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1399	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1167	TRANSFER (ta);	1400	TRANSFER (ta, 1);
1168	}	1401	}
1169		1402
1170	/ Coro ******************************************************************/	1403	/ Coro ******************************************************************/
1171		1404
1172	static void	1405	static void
…		…
1174	{	1407	{
1175	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1408	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1176	}	1409	}
1177		1410
1178	static SV *	1411	static SV *
1179	coro_deq (pTHX_ int min_prio)	1412	coro_deq (pTHX)
1180	{	1413	{
1181	int prio = PRIO_MAX - PRIO_MIN;	1414	int prio;
1182		1415
1183	min_prio -= PRIO_MIN;
1184	if (min_prio < 0)
1185	min_prio = 0;
1186
1187	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1416	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1188	if (AvFILLp (coro_ready [prio]) >= 0)	1417	if (AvFILLp (coro_ready [prio]) >= 0)
1189	return av_shift (coro_ready [prio]);	1418	return av_shift (coro_ready [prio]);
1190		1419
1191	return 0;	1420	return 0;
1192	}	1421	}
…		…
1194	static int	1423	static int
1195	api_ready (SV *coro_sv)	1424	api_ready (SV *coro_sv)
1196	{	1425	{
1197	dTHX;	1426	dTHX;
1198	struct coro *coro;	1427	struct coro *coro;
		1428	SV *sv_hook;
		1429	void (*xs_hook)(void);
1199		1430
1200	if (SvROK (coro_sv))	1431	if (SvROK (coro_sv))
1201	coro_sv = SvRV (coro_sv);	1432	coro_sv = SvRV (coro_sv);
1202		1433
1203	coro = SvSTATE (coro_sv);	1434	coro = SvSTATE (coro_sv);
…		…
1206	return 0;	1437	return 0;
1207		1438
1208	coro->flags \|= CF_READY;	1439	coro->flags \|= CF_READY;
1209		1440
1210	LOCK;	1441	LOCK;
		1442
		1443	sv_hook = coro_nready ? 0 : coro_readyhook;
		1444	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1445
1211	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1446	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1212	++coro_nready;	1447	++coro_nready;
		1448
1213	UNLOCK;	1449	UNLOCK;
		1450
		1451	if (sv_hook)
		1452	{
		1453	dSP;
		1454
		1455	ENTER;
		1456	SAVETMPS;
		1457
		1458	PUSHMARK (SP);
		1459	PUTBACK;
		1460	call_sv (sv_hook, G_DISCARD);
		1461	SPAGAIN;
		1462
		1463	FREETMPS;
		1464	LEAVE;
		1465	}
		1466
		1467	if (xs_hook)
		1468	xs_hook ();
1214		1469
1215	return 1;	1470	return 1;
1216	}	1471	}
1217		1472
1218	static int	1473	static int
…		…
1228	SV prev_sv, next_sv;	1483	SV prev_sv, next_sv;
1229		1484
1230	for (;;)	1485	for (;;)
1231	{	1486	{
1232	LOCK;	1487	LOCK;
1233	next_sv = coro_deq (aTHX_ PRIO_MIN);	1488	next_sv = coro_deq (aTHX);
1234		1489
1235	/* nothing to schedule: call the idle handler */	1490	/* nothing to schedule: call the idle handler */
1236	if (!next_sv)	1491	if (expect_false (!next_sv))
1237	{	1492	{
1238	dSP;	1493	dSP;
1239	UNLOCK;	1494	UNLOCK;
1240		1495
1241	ENTER;	1496	ENTER;
1242	SAVETMPS;	1497	SAVETMPS;
1243		1498
1244	PUSHMARK (SP);	1499	PUSHMARK (SP);
1245	PUTBACK;	1500	PUTBACK;
1246	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1501	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1502	SPAGAIN;
1247		1503
1248	FREETMPS;	1504	FREETMPS;
1249	LEAVE;	1505	LEAVE;
1250	continue;	1506	continue;
1251	}	1507	}
1252		1508
1253	ta->next = SvSTATE (next_sv);	1509	ta->next = SvSTATE (next_sv);
1254		1510
1255	/* cannot transfer to destroyed coros, skip and look for next */	1511	/* cannot transfer to destroyed coros, skip and look for next */
1256	if (ta->next->flags & CF_DESTROYED)	1512	if (expect_false (ta->next->flags & CF_DESTROYED))
1257	{	1513	{
1258	UNLOCK;	1514	UNLOCK;
1259	SvREFCNT_dec (next_sv);	1515	SvREFCNT_dec (next_sv);
1260	/* coro_nready is already taken care of by destroy */	1516	/* coro_nready is already taken care of by destroy */
1261	continue;	1517	continue;
…		…
1306	{	1562	{
1307	dTHX;	1563	dTHX;
1308	struct transfer_args ta;	1564	struct transfer_args ta;
1309		1565
1310	prepare_schedule (aTHX_ &ta);	1566	prepare_schedule (aTHX_ &ta);
1311	TRANSFER (ta);	1567	TRANSFER (ta, 1);
1312	}	1568	}
1313		1569
1314	static int	1570	static int
1315	api_cede (void)	1571	api_cede (void)
1316	{	1572	{
1317	dTHX;	1573	dTHX;
1318	struct transfer_args ta;	1574	struct transfer_args ta;
1319		1575
1320	prepare_cede (aTHX_ &ta);	1576	prepare_cede (aTHX_ &ta);
1321		1577
1322	if (ta.prev != ta.next)	1578	if (expect_true (ta.prev != ta.next))
1323	{	1579	{
1324	TRANSFER (ta);	1580	TRANSFER (ta, 1);
1325	return 1;	1581	return 1;
1326	}	1582	}
1327	else	1583	else
1328	return 0;	1584	return 0;
1329	}	1585	}
…		…
1334	dTHX;	1590	dTHX;
1335	struct transfer_args ta;	1591	struct transfer_args ta;
1336		1592
1337	if (prepare_cede_notself (aTHX_ &ta))	1593	if (prepare_cede_notself (aTHX_ &ta))
1338	{	1594	{
1339	TRANSFER (ta);	1595	TRANSFER (ta, 1);
1340	return 1;	1596	return 1;
1341	}	1597	}
1342	else	1598	else
1343	return 0;	1599	return 0;
1344	}	1600	}
…		…
1363	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1619	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1364		1620
1365	if (coro->flags & CF_RUNNING)	1621	if (coro->flags & CF_RUNNING)
1366	PL_runops = RUNOPS_DEFAULT;	1622	PL_runops = RUNOPS_DEFAULT;
1367	else	1623	else
1368	coro->runops = RUNOPS_DEFAULT;	1624	coro->slot->runops = RUNOPS_DEFAULT;
1369	}	1625	}
1370	}	1626	}
1371		1627
1372	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1628	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1373		1629
…		…
1378	#ifdef USE_ITHREADS	1634	#ifdef USE_ITHREADS
1379	MUTEX_INIT (&coro_mutex);	1635	MUTEX_INIT (&coro_mutex);
1380	#endif	1636	#endif
1381	BOOT_PAGESIZE;	1637	BOOT_PAGESIZE;
1382		1638
1383	irsgv = gv_fetchpv ("/" , GV_ADD, SVt_PV);	1639	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1384	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD, SVt_PVIO);	1640	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1641
		1642	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1643	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1644	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1645
		1646	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1647	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1648	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1385		1649
1386	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1650	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1387		1651
1388	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1652	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1389	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1653	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1394	main_top_env = PL_top_env;	1658	main_top_env = PL_top_env;
1395		1659
1396	while (main_top_env->je_prev)	1660	while (main_top_env->je_prev)
1397	main_top_env = main_top_env->je_prev;	1661	main_top_env = main_top_env->je_prev;
1398		1662
1399	coroapi.ver = CORO_API_VERSION;	1663	coroapi.ver = CORO_API_VERSION;
		1664	coroapi.rev = CORO_API_REVISION;
1400	coroapi.transfer = api_transfer;	1665	coroapi.transfer = api_transfer;
1401		1666
1402	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1667	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1403	}	1668	}
1404		1669
1405	SV *	1670	SV *
1406	new (char *klass, ...)	1671	new (char *klass, ...)
1407	CODE:	1672	CODE:
1408	{	1673	{
1409	struct coro *coro;	1674	struct coro *coro;
		1675	MAGIC *mg;
1410	HV *hv;	1676	HV *hv;
1411	int i;	1677	int i;
1412		1678
1413	Newz (0, coro, 1, struct coro);	1679	Newz (0, coro, 1, struct coro);
1414	coro->args = newAV ();	1680	coro->args = newAV ();
…		…
1417	if (coro_first) coro_first->prev = coro;	1683	if (coro_first) coro_first->prev = coro;
1418	coro->next = coro_first;	1684	coro->next = coro_first;
1419	coro_first = coro;	1685	coro_first = coro;
1420		1686
1421	coro->hv = hv = newHV ();	1687	coro->hv = hv = newHV ();
1422	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1688	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1689	mg->mg_flags \|= MGf_DUP;
1423	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1690	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1424		1691
		1692	av_extend (coro->args, items - 1);
1425	for (i = 1; i < items; i++)	1693	for (i = 1; i < items; i++)
1426	av_push (coro->args, newSVsv (ST (i)));	1694	av_push (coro->args, newSVsv (ST (i)));
1427	}	1695	}
1428	OUTPUT:	1696	OUTPUT:
1429	RETVAL	1697	RETVAL
…		…
1440	Coro::cede_notself = 4	1708	Coro::cede_notself = 4
1441	CODE:	1709	CODE:
1442	{	1710	{
1443	struct transfer_args ta;	1711	struct transfer_args ta;
1444		1712
		1713	PUTBACK;
1445	switch (ix)	1714	switch (ix)
1446	{	1715	{
1447	case 0:	1716	case 0:
1448	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1717	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1449	ta.next = 0;	1718	ta.next = 0;
…		…
1468	if (!prepare_cede_notself (aTHX_ &ta))	1737	if (!prepare_cede_notself (aTHX_ &ta))
1469	XSRETURN_EMPTY;	1738	XSRETURN_EMPTY;
1470		1739
1471	break;	1740	break;
1472	}	1741	}
		1742	SPAGAIN;
1473		1743
1474	BARRIER;	1744	BARRIER;
		1745	PUTBACK;
1475	TRANSFER (ta);	1746	TRANSFER (ta, 0);
1476		1747	SPAGAIN; /* might be the sp of a different coroutine now */
1477	if (GIMME_V != G_VOID && ta.next != ta.prev)	1748	/* be extra careful not to ever do anything after TRANSFER */
1478	XSRETURN_YES;
1479	}	1749	}
1480		1750
1481	bool	1751	bool
1482	_destroy (SV *coro_sv)	1752	_destroy (SV *coro_sv)
1483	CODE:	1753	CODE:
1484	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1754	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1485	OUTPUT:	1755	OUTPUT:
1486	RETVAL	1756	RETVAL
1487		1757
1488	void	1758	void
1489	_exit (code)	1759	_exit (int code)
1490	int code
1491	PROTOTYPE: $	1760	PROTOTYPE: $
1492	CODE:	1761	CODE:
1493	_exit (code);	1762	_exit (code);
1494		1763
1495	int	1764	int
…		…
1532	CODE:	1801	CODE:
1533	{	1802	{
1534	if (coro->mainstack)	1803	if (coro->mainstack)
1535	{	1804	{
1536	struct coro temp;	1805	struct coro temp;
1537	Zero (&temp, 1, struct coro);
1538		1806
1539	if (!(coro->flags & CF_RUNNING))	1807	if (!(coro->flags & CF_RUNNING))
1540	{	1808	{
		1809	PUTBACK;
1541	save_perl (aTHX_ &temp);	1810	save_perl (aTHX_ &temp);
1542	load_perl (aTHX_ coro);	1811	load_perl (aTHX_ coro);
1543	}	1812	}
1544		1813
1545	{	1814	{
1546	dSP;	1815	dSP;
1547	ENTER;	1816	ENTER;
1548	SAVETMPS;	1817	SAVETMPS;
		1818	PUTBACK;
		1819	PUSHSTACK;
1549	PUSHMARK (SP);	1820	PUSHMARK (SP);
1550	PUTBACK;	1821
1551	if (ix)	1822	if (ix)
1552	eval_sv (coderef, 0);	1823	eval_sv (coderef, 0);
1553	else	1824	else
1554	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1825	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1826
		1827	POPSTACK;
1555	SPAGAIN;	1828	SPAGAIN;
1556	FREETMPS;	1829	FREETMPS;
1557	LEAVE;	1830	LEAVE;
1558	PUTBACK;	1831	PUTBACK;
1559	}	1832	}
1560		1833
1561	if (!(coro->flags & CF_RUNNING))	1834	if (!(coro->flags & CF_RUNNING))
1562	{	1835	{
1563	save_perl (aTHX_ coro);	1836	save_perl (aTHX_ coro);
1564	load_perl (aTHX_ &temp);	1837	load_perl (aTHX_ &temp);
		1838	SPAGAIN;
1565	}	1839	}
1566	}	1840	}
1567	}	1841	}
1568		1842
1569	SV *	1843	SV *
…		…
1581		1855
1582	void	1856	void
1583	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1857	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1584		1858
1585	SV *	1859	SV *
1586	has_stack (Coro::State coro)	1860	has_cctx (Coro::State coro)
1587	PROTOTYPE: $	1861	PROTOTYPE: $
1588	CODE:	1862	CODE:
1589	RETVAL = boolSV (!!coro->cctx);	1863	RETVAL = boolSV (!!coro->cctx);
1590	OUTPUT:	1864	OUTPUT:
1591	RETVAL	1865	RETVAL
…		…
1610	case 1: RETVAL = coro->usecount; break;	1884	case 1: RETVAL = coro->usecount; break;
1611	}	1885	}
1612	OUTPUT:	1886	OUTPUT:
1613	RETVAL	1887	RETVAL
1614		1888
		1889	void
		1890	force_cctx ()
		1891	CODE:
		1892	struct coro *coro = SvSTATE (coro_current);
		1893	coro->cctx->idle_sp = 0;
1615		1894
1616	MODULE = Coro::State PACKAGE = Coro	1895	MODULE = Coro::State PACKAGE = Coro
1617		1896
1618	BOOT:	1897	BOOT:
1619	{	1898	{
1620	int i;	1899	int i;
1621		1900
1622	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1623	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1624	av_async_pool = get_av ("Coro::async_pool", TRUE);	1901	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1902	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1903	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1625		1904
1626	coro_current = get_sv ("Coro::current", FALSE);	1905	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1627	SvREADONLY_on (coro_current);	1906	SvREADONLY_on (coro_current);
1628		1907
1629	coro_stash = gv_stashpv ("Coro", TRUE);	1908	coro_stash = gv_stashpv ("Coro", TRUE);
1630		1909
1631	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1910	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1632	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1911	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1633	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1912	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1634	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1913	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1637		1916
1638	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1917	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1639	coro_ready[i] = newAV ();	1918	coro_ready[i] = newAV ();
1640		1919
1641	{	1920	{
1642	SV *sv = perl_get_sv("Coro::API", 1);	1921	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1922	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1643		1923
1644	coroapi.schedule = api_schedule;	1924	coroapi.schedule = api_schedule;
1645	coroapi.cede = api_cede;	1925	coroapi.cede = api_cede;
1646	coroapi.cede_notself = api_cede_notself;	1926	coroapi.cede_notself = api_cede_notself;
1647	coroapi.ready = api_ready;	1927	coroapi.ready = api_ready;
…		…
1660	PROTOTYPE: $	1940	PROTOTYPE: $
1661	CODE:	1941	CODE:
1662	SvREFCNT_dec (SvRV (coro_current));	1942	SvREFCNT_dec (SvRV (coro_current));
1663	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1943	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1664		1944
		1945	void
		1946	_set_readyhook (SV *hook)
		1947	PROTOTYPE: $
		1948	CODE:
		1949	LOCK;
		1950	SvREFCNT_dec (coro_readyhook);
		1951	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1952	UNLOCK;
		1953
1665	int	1954	int
1666	prio (Coro::State coro, int newprio = 0)	1955	prio (Coro::State coro, int newprio = 0)
1667	ALIAS:	1956	ALIAS:
1668	nice = 1	1957	nice = 1
1669	CODE:	1958	CODE:
…		…
1698	CODE:	1987	CODE:
1699	RETVAL = coro_nready;	1988	RETVAL = coro_nready;
1700	OUTPUT:	1989	OUTPUT:
1701	RETVAL	1990	RETVAL
1702		1991
		1992	void
		1993	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1994	PROTOTYPE: $;$
		1995	CODE:
		1996	SvREFCNT_dec (self->throw);
		1997	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1998
		1999	void
		2000	swap_defsv (Coro::State self)
		2001	PROTOTYPE: $
		2002	ALIAS:
		2003	swap_defav = 1
		2004	CODE:
		2005	if (!self->slot)
		2006	croak ("cannot swap state with coroutine that has no saved state");
		2007	else
		2008	{
		2009	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2010	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2011
		2012	SV tmp = src; src = dst; *dst = tmp;
		2013	}
		2014
1703	# for async_pool speedup	2015	# for async_pool speedup
1704	void	2016	void
1705	_pool_1 (SV *cb)	2017	_pool_1 (SV *cb)
1706	CODE:	2018	CODE:
1707	{	2019	{
…		…
1711	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2023	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1712	AV *invoke_av;	2024	AV *invoke_av;
1713	int i, len;	2025	int i, len;
1714		2026
1715	if (!invoke)	2027	if (!invoke)
		2028	{
		2029	SV *old = PL_diehook;
		2030	PL_diehook = 0;
		2031	SvREFCNT_dec (old);
1716	croak ("\3terminate\2\n");	2032	croak ("\3async_pool terminate\2\n");
		2033	}
1717		2034
1718	SvREFCNT_dec (coro->saved_deffh);	2035	SvREFCNT_dec (coro->saved_deffh);
1719	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2036	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1720		2037
1721	hv_store (hv, "desc", sizeof ("desc") - 1,	2038	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1747	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2064	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1748	coro->saved_deffh = 0;	2065	coro->saved_deffh = 0;
1749		2066
1750	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2067	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1751	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2068	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2069	{
		2070	SV *old = PL_diehook;
		2071	PL_diehook = 0;
		2072	SvREFCNT_dec (old);
1752	croak ("\3terminate\2\n");	2073	croak ("\3async_pool terminate\2\n");
		2074	}
1753		2075
1754	av_clear (GvAV (PL_defgv));	2076	av_clear (GvAV (PL_defgv));
1755	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2077	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1756	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2078	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1757		2079
…		…
1796	PL_laststype = data->laststype;	2118	PL_laststype = data->laststype;
1797	PL_laststatval = data->laststatval;	2119	PL_laststatval = data->laststatval;
1798	PL_statcache = data->statcache;	2120	PL_statcache = data->statcache;
1799	}	2121	}
1800		2122
		2123
		2124	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2125
		2126	BOOT:
		2127	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2128
		2129	SV *
		2130	_schedule (...)
		2131	PROTOTYPE: @
		2132	CODE:
		2133	{
		2134	static int incede;
		2135
		2136	api_cede_notself ();
		2137
		2138	++incede;
		2139	while (coro_nready >= incede && api_cede ())
		2140	;
		2141
		2142	sv_setsv (sv_activity, &PL_sv_undef);
		2143	if (coro_nready >= incede)
		2144	{
		2145	PUSHMARK (SP);
		2146	PUTBACK;
		2147	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2148	SPAGAIN;
		2149	}
		2150
		2151	--incede;
		2152	}
		2153

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Comparing Coro/Coro/State.xs (file contents): Revision 1.189 by root, Fri Oct 5 20:38:43 2007 UTC vs. Revision 1.241 by root, Mon Jul 21 02:39:15 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.189 by root, Fri Oct 5 20:38:43 2007 UTC vs.
Revision 1.241 by root, Mon Jul 21 02:39:15 2008 UTC