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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.202 by root, Mon Oct 8 02:50:23 2007 UTC vs.
Revision 1.256 by root, Sat Nov 8 13:32:18 2008 UTC

…		…
4	#define PERL_EXT	4	#define PERL_EXT
5		5
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
9		10
10	#include "patchlevel.h"	11	#include "patchlevel.h"
11		12
12	#include <stdio.h>	13	#include <stdio.h>
13	#include <errno.h>	14	#include <errno.h>
14	#include <assert.h>	15	#include <assert.h>
		16
		17	#ifdef WIN32
		18	# undef setjmp
		19	# undef longjmp
		20	# undef _exit
		21	# define setjmp _setjmp // deep magic, don't ask
		22	#else
		23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
15		25
16	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
17	# include <unistd.h>	27	# include <unistd.h>
18	# include <sys/mman.h>	28	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
42	#else	52	#else
43	# define REGISTER_STACK(cctx,start,end)	53	# define REGISTER_STACK(cctx,start,end)
44	#endif	54	#endif
45		55
46	/* the maximum number of idle cctx that will be pooled */	56	/* the maximum number of idle cctx that will be pooled */
47	#define MAX_IDLE_CCTX 8	57	static int cctx_max_idle = 4;
48		58
49	#define PERL_VERSION_ATLEAST(a,b,c) \	59	#define PERL_VERSION_ATLEAST(a,b,c) \
50	(PERL_REVISION > (a) \	60	(PERL_REVISION > (a) \
51	\|\| (PERL_REVISION == (a) \	61	\|\| (PERL_REVISION == (a) \
52	&& (PERL_VERSION > (b) \	62	&& (PERL_VERSION > (b) \
…		…
71	# ifndef IS_PADCONST	81	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	82	# define IS_PADCONST(v) 0
73	# endif	83	# endif
74	#endif	84	#endif
75		85
		86	/* 5.11 */
		87	#ifndef CxHASARGS
		88	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		89	#endif
		90
		91	/* 5.10.0 */
		92	#ifndef SvREFCNT_inc_NN
		93	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		94	#endif
		95
		96	/* 5.8.8 */
		97	#ifndef GV_NOTQUAL
		98	# define GV_NOTQUAL 0
		99	#endif
		100	#ifndef newSV
		101	# define newSV(l) NEWSV(0,l)
		102	#endif
		103
76	/* 5.8.7 */	104	/* 5.8.7 */
77	#ifndef SvRV_set	105	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	106	# define SvRV_set(s,v) SvRV(s) = (v)
79	#endif
80
81	/* 5.8.8 */
82	#ifndef GV_NOTQUAL
83	# define GV_NOTQUAL 0
84	#endif
85	#ifndef newSV
86	# define newSV(l) NEWSV(0,l)
87	#endif	107	#endif
88		108
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	109	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	110	# undef CORO_STACKGUARD
91	#endif	111	#endif
…		…
122	#define NOINLINE attribute ((noinline))	142	#define NOINLINE attribute ((noinline))
123		143
124	#include "CoroAPI.h"	144	#include "CoroAPI.h"
125		145
126	#ifdef USE_ITHREADS	146	#ifdef USE_ITHREADS
		147
127	static perl_mutex coro_mutex;	148	static perl_mutex coro_lock;
128	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	149	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	150	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		151	# if CORO_PTHREAD
		152	static void *coro_thx;
		153	# endif
		154
130	#else	155	#else
		156
131	# define LOCK (void)0	157	# define LOCK (void)0
132	# define UNLOCK (void)0	158	# define UNLOCK (void)0
133	#endif
134		159
135	#define strpair(const) const, sizeof (const) - 1	160	#endif
		161
		162	# undef LOCK
		163	# define LOCK (void)0
		164	# undef UNLOCK
		165	# define UNLOCK (void)0
136		166
137	/* helper storage struct for Coro::AIO */	167	/* helper storage struct for Coro::AIO */
138	struct io_state	168	struct io_state
139	{	169	{
		170	AV *res;
140	int errorno;	171	int errorno;
141	I32 laststype;	172	I32 laststype; /* U16 in 5.10.0 */
142	int laststatval;	173	int laststatval;
143	Stat_t statcache;	174	Stat_t statcache;
144	};	175	};
145		176
		177	static double (nvtime)(); / so why doesn't it take void? */
		178
		179	static U32 cctx_gen;
146	static size_t coro_stacksize = CORO_STACKSIZE;	180	static size_t cctx_stacksize = CORO_STACKSIZE;
147	static struct CoroAPI coroapi;	181	static struct CoroAPI coroapi;
148	static AV main_mainstack; / used to differentiate between $main and others */	182	static AV main_mainstack; / used to differentiate between $main and others */
149	static JMPENV *main_top_env;	183	static JMPENV *main_top_env;
150	static HV coro_state_stash, coro_stash;	184	static HV coro_state_stash, coro_stash;
151	static SV coro_mortal; / will be freed after next transfer */	185	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
152		186
153	static GV irsgv; / $/ */	187	static GV irsgv; / $/ */
154	static GV stdoutgv; / STDOUT /	188	static GV stdoutgv; / STDOUT /
155		189	static SV *rv_diehook;
		190	static SV *rv_warnhook;
156	static HV hv_sig; / %SIG */	191	static HV hv_sig; / %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		192
160	/* async_pool helper stuff */	193	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	194	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	195	static SV *sv_pool_size;
163	static AV *av_async_pool;	196	static AV *av_async_pool;
		197
		198	/* Coro::AnyEvent */
		199	static SV *sv_activity;
164		200
165	static struct coro_cctx *cctx_first;	201	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	202	static int cctx_count, cctx_idle;
167		203
168	enum {	204	enum {
…		…
186	void idle_sp; / sp of top-level transfer/schedule/cede call */	222	void idle_sp; / sp of top-level transfer/schedule/cede call */
187	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	223	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
188	JMPENV *top_env;	224	JMPENV *top_env;
189	coro_context cctx;	225	coro_context cctx;
190		226
		227	U32 gen;
191	#if CORO_USE_VALGRIND	228	#if CORO_USE_VALGRIND
192	int valgrind_id;	229	int valgrind_id;
193	#endif	230	#endif
194	unsigned char flags;	231	unsigned char flags;
195	} coro_cctx;	232	} coro_cctx;
…		…
221		258
222	/* process data */	259	/* process data */
223	AV *mainstack;	260	AV *mainstack;
224	perl_slots slot; / basically the saved sp */	261	perl_slots slot; / basically the saved sp */
225		262
226	/* data associated with this coroutine (initial args) */	263	AV args; / data associated with this coroutine (initial args) */
227	AV *args;	264	int refcnt; /* coroutines are refcounted, yes */
228	int refcnt;
229	int flags; /* CF_ flags */	265	int flags; /* CF_ flags */
		266	HV hv; / the perl hash associated with this coro, if any */
230		267
231	/* statistics */	268	/* statistics */
232	int usecount; /* number of transfers to this coro */	269	int usecount; /* number of transfers to this coro */
233		270
234	/* coro process data */	271	/* coro process data */
235	int prio;	272	int prio;
236	SV *throw;	273	SV throw; / exception to be thrown */
237		274
238	/* async_pool */	275	/* async_pool */
239	SV *saved_deffh;	276	SV *saved_deffh;
240		277
241	/* linked list */	278	/* linked list */
242	struct coro next, prev;	279	struct coro next, prev;
243	HV hv; / the perl hash associated with this coro, if any */
244	};	280	};
245		281
246	typedef struct coro *Coro__State;	282	typedef struct coro *Coro__State;
247	typedef struct coro *Coro__State_or_hashref;	283	typedef struct coro *Coro__State_or_hashref;
248		284
…		…
255	#define PRIO_IDLE -3	291	#define PRIO_IDLE -3
256	#define PRIO_MIN -4	292	#define PRIO_MIN -4
257		293
258	/* for Coro.pm */	294	/* for Coro.pm */
259	static SV *coro_current;	295	static SV *coro_current;
		296	static SV *coro_readyhook;
260	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	297	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
261	static int coro_nready;	298	static int coro_nready;
262	static struct coro *coro_first;	299	static struct coro *coro_first;
263		300
264	/ lowlevel stuff ********************************************************/	301	/ lowlevel stuff ********************************************************/
265		302
266	static SV *	303	static SV *
267	coro_get_sv (const char *name, int create)	304	coro_get_sv (pTHX_ const char *name, int create)
268	{	305	{
269	#if PERL_VERSION_ATLEAST (5,9,0)	306	#if PERL_VERSION_ATLEAST (5,10,0)
270	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	307	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
271	get_sv (name, create);	308	get_sv (name, create);
272	#endif	309	#endif
273	return get_sv (name, create);	310	return get_sv (name, create);
274	}	311	}
275		312
276	static AV *	313	static AV *
277	coro_get_av (const char *name, int create)	314	coro_get_av (pTHX_ const char *name, int create)
278	{	315	{
279	#if PERL_VERSION_ATLEAST (5,9,0)	316	#if PERL_VERSION_ATLEAST (5,10,0)
280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	317	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
281	get_av (name, create);	318	get_av (name, create);
282	#endif	319	#endif
283	return get_av (name, create);	320	return get_av (name, create);
284	}	321	}
285		322
286	static HV *	323	static HV *
287	coro_get_hv (const char *name, int create)	324	coro_get_hv (pTHX_ const char *name, int create)
288	{	325	{
289	#if PERL_VERSION_ATLEAST (5,9,0)	326	#if PERL_VERSION_ATLEAST (5,10,0)
290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	327	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
291	get_hv (name, create);	328	get_hv (name, create);
292	#endif	329	#endif
293	return get_hv (name, create);	330	return get_hv (name, create);
294	}	331	}
…		…
299	AV *padlist = CvPADLIST (cv);	336	AV *padlist = CvPADLIST (cv);
300	AV newpadlist, newpad;	337	AV newpadlist, newpad;
301		338
302	newpadlist = newAV ();	339	newpadlist = newAV ();
303	AvREAL_off (newpadlist);	340	AvREAL_off (newpadlist);
304	#if PERL_VERSION_ATLEAST (5,9,0)	341	#if PERL_VERSION_ATLEAST (5,10,0)
305	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	342	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
306	#else	343	#else
307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	344	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
308	#endif	345	#endif
309	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	346	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
310	--AvFILLp (padlist);	347	--AvFILLp (padlist);
311		348
312	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	349	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
313	av_store (newpadlist, 1, (SV *)newpad);	350	av_store (newpadlist, 1, (SV *)newpad);
314		351
315	return newpadlist;	352	return newpadlist;
316	}	353	}
317		354
…		…
347		384
348	/* casting is fun. */	385	/* casting is fun. */
349	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	386	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
350	free_padlist (aTHX_ padlist);	387	free_padlist (aTHX_ padlist);
351		388
352	SvREFCNT_dec (av);	389	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
353		390
354	return 0;	391	return 0;
355	}	392	}
356		393
357	#define PERL_MAGIC_coro PERL_MAGIC_ext	394	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		395	#define CORO_MAGIC_type_state PERL_MAGIC_ext
358		396
359	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	397	static MGVTBL coro_cv_vtbl = {
		398	0, 0, 0, 0,
		399	coro_cv_free
		400	};
360		401
361	#define CORO_MAGIC(cv) \	402	#define CORO_MAGIC(sv, type) \
362	SvMAGIC (cv) \	403	SvMAGIC (sv) \
363	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	404	? SvMAGIC (sv)->mg_type == type \
364	? SvMAGIC (cv) \	405	? SvMAGIC (sv) \
365	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	406	: mg_find (sv, type) \
366	: 0	407	: 0
		408
		409	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		410	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
367		411
368	static struct coro *	412	static struct coro *
369	SvSTATE_ (pTHX_ SV *coro)	413	SvSTATE_ (pTHX_ SV *coro)
370	{	414	{
371	HV *stash;	415	HV *stash;
…		…
383	/* very slow, but rare, check */	427	/* very slow, but rare, check */
384	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	428	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
385	croak ("Coro::State object required");	429	croak ("Coro::State object required");
386	}	430	}
387		431
388	mg = CORO_MAGIC (coro);	432	mg = CORO_MAGIC_state (coro);
389	return (struct coro *)mg->mg_ptr;	433	return (struct coro *)mg->mg_ptr;
390	}	434	}
391		435
392	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	436	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
393		437
394	/* the next two functions merely cache the padlists */	438	/* the next two functions merely cache the padlists */
395	static void	439	static void
396	get_padlist (pTHX_ CV *cv)	440	get_padlist (pTHX_ CV *cv)
397	{	441	{
398	MAGIC *mg = CORO_MAGIC (cv);	442	MAGIC *mg = CORO_MAGIC_cv (cv);
399	AV *av;	443	AV *av;
400		444
401	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	445	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
402	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	446	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
403	else	447	else
404	{	448	{
405	#if CORO_PREFER_PERL_FUNCTIONS	449	#if CORO_PREFER_PERL_FUNCTIONS
406	/* this is probably cleaner, but also slower? */	450	/* this is probably cleaner? but also slower! */
		451	/* in practise, it seems to be less stable */
407	CV *cp = Perl_cv_clone (cv);	452	CV *cp = Perl_cv_clone (cv);
408	CvPADLIST (cv) = CvPADLIST (cp);	453	CvPADLIST (cv) = CvPADLIST (cp);
409	CvPADLIST (cp) = 0;	454	CvPADLIST (cp) = 0;
410	SvREFCNT_dec (cp);	455	SvREFCNT_dec (cp);
411	#else	456	#else
…		…
415	}	460	}
416		461
417	static void	462	static void
418	put_padlist (pTHX_ CV *cv)	463	put_padlist (pTHX_ CV *cv)
419	{	464	{
420	MAGIC *mg = CORO_MAGIC (cv);	465	MAGIC *mg = CORO_MAGIC_cv (cv);
421	AV *av;	466	AV *av;
422		467
423	if (expect_false (!mg))	468	if (expect_false (!mg))
424	{	469	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
425	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
426	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
427	mg->mg_virtual = &vtbl_coro;
428	mg->mg_obj = (SV *)newAV ();
429	}
430		470
431	av = (AV *)mg->mg_obj;	471	av = (AV *)mg->mg_obj;
432		472
433	if (expect_false (AvFILLp (av) >= AvMAX (av)))	473	if (expect_false (AvFILLp (av) >= AvMAX (av)))
434	av_extend (av, AvMAX (av) + 1);	474	av_extend (av, AvMAX (av) + 1);
…		…
452	GvSV (irsgv) = slot->irsgv;	492	GvSV (irsgv) = slot->irsgv;
453		493
454	#define VAR(name,type) PL_ ## name = slot->name;	494	#define VAR(name,type) PL_ ## name = slot->name;
455	# include "state.h"	495	# include "state.h"
456	#undef VAR	496	#undef VAR
457
458	/hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);/
459	/hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);/
460		497
461	{	498	{
462	dSP;	499	dSP;
463		500
464	CV *cv;	501	CV *cv;
…		…
503		540
504	if (expect_true (CvDEPTH (cv)))	541	if (expect_true (CvDEPTH (cv)))
505	{	542	{
506	EXTEND (SP, 3);	543	EXTEND (SP, 3);
507	PUSHs ((SV *)CvPADLIST (cv));	544	PUSHs ((SV *)CvPADLIST (cv));
508	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	545	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
509	PUSHs ((SV *)cv);	546	PUSHs ((SV *)cv);
510		547
511	CvDEPTH (cv) = 0;	548	CvDEPTH (cv) = 0;
512	get_padlist (aTHX_ cv);	549	get_padlist (aTHX_ cv);
513	}	550	}
…		…
557	* allocate various perl stacks. This is an exact copy	594	* allocate various perl stacks. This is an exact copy
558	* of perl.c:init_stacks, except that it uses less memory	595	* of perl.c:init_stacks, except that it uses less memory
559	* on the (sometimes correct) assumption that coroutines do	596	* on the (sometimes correct) assumption that coroutines do
560	* not usually need a lot of stackspace.	597	* not usually need a lot of stackspace.
561	*/	598	*/
562	#if 1	599	#if CORO_PREFER_PERL_FUNCTIONS
563	# define coro_init_stacks init_stacks	600	# define coro_init_stacks init_stacks
564	#else	601	#else
565	static void	602	static void
566	coro_init_stacks (pTHX)	603	coro_init_stacks (pTHX)
567	{	604	{
…		…
593		630
594	New(54,PL_savestack,24,ANY);	631	New(54,PL_savestack,24,ANY);
595	PL_savestack_ix = 0;	632	PL_savestack_ix = 0;
596	PL_savestack_max = 24;	633	PL_savestack_max = 24;
597		634
598	#if !PERL_VERSION_ATLEAST (5,9,0)	635	#if !PERL_VERSION_ATLEAST (5,10,0)
599	New(54,PL_retstack,4,OP*);	636	New(54,PL_retstack,4,OP*);
600	PL_retstack_ix = 0;	637	PL_retstack_ix = 0;
601	PL_retstack_max = 4;	638	PL_retstack_max = 4;
602	#endif	639	#endif
603	}	640	}
…		…
605		642
606	/*	643	/*
607	* destroy the stacks, the callchain etc...	644	* destroy the stacks, the callchain etc...
608	*/	645	*/
609	static void	646	static void
610	coro_destroy_stacks (pTHX)	647	coro_destruct_stacks (pTHX)
611	{	648	{
612	while (PL_curstackinfo->si_next)	649	while (PL_curstackinfo->si_next)
613	PL_curstackinfo = PL_curstackinfo->si_next;	650	PL_curstackinfo = PL_curstackinfo->si_next;
614		651
615	while (PL_curstackinfo)	652	while (PL_curstackinfo)
…		…
626		663
627	Safefree (PL_tmps_stack);	664	Safefree (PL_tmps_stack);
628	Safefree (PL_markstack);	665	Safefree (PL_markstack);
629	Safefree (PL_scopestack);	666	Safefree (PL_scopestack);
630	Safefree (PL_savestack);	667	Safefree (PL_savestack);
631	#if !PERL_VERSION_ATLEAST (5,9,0)	668	#if !PERL_VERSION_ATLEAST (5,10,0)
632	Safefree (PL_retstack);	669	Safefree (PL_retstack);
633	#endif	670	#endif
634	}	671	}
635		672
636	static size_t	673	static size_t
…		…
652	#undef VAR	689	#undef VAR
653	}	690	}
654	else	691	else
655	slot = coro->slot;	692	slot = coro->slot;
656		693
		694	if (slot)
		695	{
657	rss += sizeof (slot->curstackinfo);	696	rss += sizeof (slot->curstackinfo);
658	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	697	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
659	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	698	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
660	rss += slot->tmps_max * sizeof (SV *);	699	rss += slot->tmps_max * sizeof (SV *);
661	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	700	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
662	rss += slot->scopestack_max * sizeof (I32);	701	rss += slot->scopestack_max * sizeof (I32);
663	rss += slot->savestack_max * sizeof (ANY);	702	rss += slot->savestack_max * sizeof (ANY);
664		703
665	#if !PERL_VERSION_ATLEAST (5,9,0)	704	#if !PERL_VERSION_ATLEAST (5,10,0)
666	rss += slot->retstack_max * sizeof (OP *);	705	rss += slot->retstack_max * sizeof (OP *);
667	#endif	706	#endif
		707	}
668	}	708	}
669		709
670	return rss;	710	return rss;
671	}	711	}
672		712
673	/ coroutine stack handling **********************************************/	713	/ coroutine stack handling **********************************************/
		714
		715	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		716	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		717	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		718
		719	/* apparently < 5.8.8 */
		720	#ifndef MgPV_nolen_const
		721	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		722	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		723	(const char*)(mg)->mg_ptr)
		724	#endif
		725
		726	/*
		727	* This overrides the default magic get method of %SIG elements.
		728	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		729	* and instead of tryign to save and restore the hash elements, we just provide
		730	* readback here.
		731	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		732	* not expecting this to actually change the hook. This is a potential problem
		733	* when a schedule happens then, but we ignore this.
		734	*/
		735	static int
		736	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		737	{
		738	const char *s = MgPV_nolen_const (mg);
		739
		740	if (*s == '_')
		741	{
		742	SV **svp = 0;
		743
		744	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		745	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		746
		747	if (svp)
		748	{
		749	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		750	return 0;
		751	}
		752	}
		753
		754	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		755	}
		756
		757	static int
		758	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		759	{
		760	const char *s = MgPV_nolen_const (mg);
		761
		762	if (*s == '_')
		763	{
		764	SV **svp = 0;
		765
		766	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		767	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		768
		769	if (svp)
		770	{
		771	SV old = svp;
		772	*svp = 0;
		773	SvREFCNT_dec (old);
		774	return 0;
		775	}
		776	}
		777
		778	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		779	}
		780
		781	static int
		782	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		783	{
		784	const char *s = MgPV_nolen_const (mg);
		785
		786	if (*s == '_')
		787	{
		788	SV **svp = 0;
		789
		790	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		791	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		792
		793	if (svp)
		794	{
		795	SV old = svp;
		796	*svp = newSVsv (sv);
		797	SvREFCNT_dec (old);
		798	return 0;
		799	}
		800	}
		801
		802	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		803	}
674		804
675	static void	805	static void
676	coro_setup (pTHX_ struct coro *coro)	806	coro_setup (pTHX_ struct coro *coro)
677	{	807	{
678	/*	808	/*
…		…
687	PL_curpm = 0;	817	PL_curpm = 0;
688	PL_curpad = 0;	818	PL_curpad = 0;
689	PL_localizing = 0;	819	PL_localizing = 0;
690	PL_dirty = 0;	820	PL_dirty = 0;
691	PL_restartop = 0;	821	PL_restartop = 0;
692	PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	822	#if PERL_VERSION_ATLEAST (5,10,0)
693	PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	823	PL_parser = 0;
		824	#endif
		825
		826	/* recreate the die/warn hooks */
		827	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		828	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
694		829
695	GvSV (PL_defgv) = newSV (0);	830	GvSV (PL_defgv) = newSV (0);
696	GvAV (PL_defgv) = coro->args; coro->args = 0;	831	GvAV (PL_defgv) = coro->args; coro->args = 0;
697	GvSV (PL_errgv) = newSV (0);	832	GvSV (PL_errgv) = newSV (0);
698	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	833	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
699	PL_rs = newSVsv (GvSV (irsgv));	834	PL_rs = newSVsv (GvSV (irsgv));
700	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	835	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
701		836
702	{	837	{
703	dSP;	838	dSP;
704	LOGOP myop;	839	LOGOP myop;
705		840
…		…
713	PL_op = (OP *)&myop;	848	PL_op = (OP *)&myop;
714	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	849	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
715	SPAGAIN;	850	SPAGAIN;
716	}	851	}
717		852
718	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	853	/* this newly created coroutine might be run on an existing cctx which most
		854	* likely was suspended in set_stacklevel, called from entersub.
		855	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		856	* so we ENTER here for symmetry
		857	*/
		858	ENTER;
719	}	859	}
720		860
721	static void	861	static void
722	coro_destroy (pTHX_ struct coro *coro)	862	coro_destruct (pTHX_ struct coro *coro)
723	{	863	{
724	if (!IN_DESTRUCT)	864	if (!IN_DESTRUCT)
725	{	865	{
726	/* restore all saved variables and stuff */	866	/* restore all saved variables and stuff */
727	LEAVE_SCOPE (0);	867	LEAVE_SCOPE (0);
…		…
749	SvREFCNT_dec (PL_warnhook);	889	SvREFCNT_dec (PL_warnhook);
750		890
751	SvREFCNT_dec (coro->saved_deffh);	891	SvREFCNT_dec (coro->saved_deffh);
752	SvREFCNT_dec (coro->throw);	892	SvREFCNT_dec (coro->throw);
753		893
754	coro_destroy_stacks (aTHX);	894	coro_destruct_stacks (aTHX);
755	}	895	}
756		896
757	static void	897	static void
758	free_coro_mortal (pTHX)	898	free_coro_mortal (pTHX)
759	{	899	{
…		…
796	: cx->blk_gimme == G_SCALAR ? bot + 1	936	: cx->blk_gimme == G_SCALAR ? bot + 1
797	: bot;	937	: bot;
798		938
799	av_extend (av, top - bot);	939	av_extend (av, top - bot);
800	while (bot < top)	940	while (bot < top)
801	av_push (av, SvREFCNT_inc (*bot++));	941	av_push (av, SvREFCNT_inc_NN (*bot++));
802		942
803	PL_runops = RUNOPS_DEFAULT;	943	PL_runops = RUNOPS_DEFAULT;
804	ENTER;	944	ENTER;
805	SAVETMPS;	945	SAVETMPS;
806	EXTEND (SP, 3);	946	EXTEND (SP, 3);
807	PUSHMARK (SP);	947	PUSHMARK (SP);
808	PUSHs (&PL_sv_no);	948	PUSHs (&PL_sv_no);
809	PUSHs (fullname);	949	PUSHs (fullname);
810	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	950	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
811	PUTBACK;	951	PUTBACK;
812	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	952	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
813	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	953	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
814	SPAGAIN;	954	SPAGAIN;
815	FREETMPS;	955	FREETMPS;
816	LEAVE;	956	LEAVE;
817	PL_runops = runops_trace;	957	PL_runops = runops_trace;
…		…
844	SAVETMPS;	984	SAVETMPS;
845	EXTEND (SP, 3);	985	EXTEND (SP, 3);
846	PUSHMARK (SP);	986	PUSHMARK (SP);
847	PUSHs (&PL_sv_yes);	987	PUSHs (&PL_sv_yes);
848	PUSHs (fullname);	988	PUSHs (fullname);
849	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	989	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
850	PUTBACK;	990	PUTBACK;
851	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	991	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
852	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	992	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
853	SPAGAIN;	993	SPAGAIN;
854	FREETMPS;	994	FREETMPS;
855	LEAVE;	995	LEAVE;
856	PL_runops = runops_trace;	996	PL_runops = runops_trace;
…		…
870	PL_runops = RUNOPS_DEFAULT;	1010	PL_runops = RUNOPS_DEFAULT;
871	PUSHMARK (SP);	1011	PUSHMARK (SP);
872	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1012	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
873	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1013	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
874	PUTBACK;	1014	PUTBACK;
875	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	1015	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
876	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1016	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
877	SPAGAIN;	1017	SPAGAIN;
878	FREETMPS;	1018	FREETMPS;
879	LEAVE;	1019	LEAVE;
880	PL_runops = runops_trace;	1020	PL_runops = runops_trace;
…		…
920	* this is a _very_ stripped down perl interpreter ;)	1060	* this is a _very_ stripped down perl interpreter ;)
921	*/	1061	*/
922	static void	1062	static void
923	cctx_run (void *arg)	1063	cctx_run (void *arg)
924	{	1064	{
		1065	#ifdef USE_ITHREADS
		1066	# if CORO_PTHREAD
		1067	PERL_SET_CONTEXT (coro_thx);
		1068	# endif
		1069	#endif
		1070	{
925	dTHX;	1071	dTHX;
926		1072
927	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1073	/* cctx_run is the alternative tail of transfer(), so unlock here. */
928	UNLOCK;	1074	UNLOCK;
929		1075
930	/* we now skip the entersub that lead to transfer() */	1076	/* we now skip the entersub that lead to transfer() */
931	PL_op = PL_op->op_next;	1077	PL_op = PL_op->op_next;
932		1078
933	/* inject a fake subroutine call to cctx_init */	1079	/* inject a fake subroutine call to cctx_init */
934	cctx_prepare (aTHX_ (coro_cctx *)arg);	1080	cctx_prepare (aTHX_ (coro_cctx *)arg);
935		1081
936	/* somebody or something will hit me for both perl_run and PL_restartop */	1082	/* somebody or something will hit me for both perl_run and PL_restartop */
937	PL_restartop = PL_op;	1083	PL_restartop = PL_op;
938	perl_run (PL_curinterp);	1084	perl_run (PL_curinterp);
939		1085
940	/*	1086	/*
941	* If perl-run returns we assume exit() was being called or the coro	1087	* If perl-run returns we assume exit() was being called or the coro
942	* fell off the end, which seems to be the only valid (non-bug)	1088	* fell off the end, which seems to be the only valid (non-bug)
943	* reason for perl_run to return. We try to exit by jumping to the	1089	* reason for perl_run to return. We try to exit by jumping to the
944	* bootstrap-time "top" top_env, as we cannot restore the "main"	1090	* bootstrap-time "top" top_env, as we cannot restore the "main"
945	* coroutine as Coro has no such concept	1091	* coroutine as Coro has no such concept
946	*/	1092	*/
947	PL_top_env = main_top_env;	1093	PL_top_env = main_top_env;
948	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1094	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1095	}
949	}	1096	}
950		1097
951	static coro_cctx *	1098	static coro_cctx *
952	cctx_new ()	1099	cctx_new ()
953	{	1100	{
954	coro_cctx *cctx;	1101	coro_cctx *cctx;
955	void *stack_start;	1102	void *stack_start;
956	size_t stack_size;	1103	size_t stack_size;
957		1104
958	++cctx_count;	1105	++cctx_count;
959
960	Newz (0, cctx, 1, coro_cctx);	1106	Newz (0, cctx, 1, coro_cctx);
961		1107
		1108	cctx->gen = cctx_gen;
		1109
962	#if HAVE_MMAP	1110	#if HAVE_MMAP
963	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1111	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
964	/* mmap supposedly does allocate-on-write for us */	1112	/* mmap supposedly does allocate-on-write for us */
965	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1113	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
966		1114
967	if (cctx->sptr != (void *)-1)	1115	if (cctx->sptr != (void *)-1)
968	{	1116	{
…		…
974	cctx->flags \|= CC_MAPPED;	1122	cctx->flags \|= CC_MAPPED;
975	}	1123	}
976	else	1124	else
977	#endif	1125	#endif
978	{	1126	{
979	cctx->ssize = coro_stacksize * (long)sizeof (long);	1127	cctx->ssize = cctx_stacksize * (long)sizeof (long);
980	New (0, cctx->sptr, coro_stacksize, long);	1128	New (0, cctx->sptr, cctx_stacksize, long);
981		1129
982	if (!cctx->sptr)	1130	if (!cctx->sptr)
983	{	1131	{
984	perror ("FATAL: unable to allocate stack for coroutine");	1132	perror ("FATAL: unable to allocate stack for coroutine");
985	_exit (EXIT_FAILURE);	1133	_exit (EXIT_FAILURE);
…		…
1000	{	1148	{
1001	if (!cctx)	1149	if (!cctx)
1002	return;	1150	return;
1003		1151
1004	--cctx_count;	1152	--cctx_count;
		1153	coro_destroy (&cctx->cctx);
1005		1154
		1155	/* coro_transfer creates new, empty cctx's */
		1156	if (cctx->sptr)
		1157	{
1006	#if CORO_USE_VALGRIND	1158	#if CORO_USE_VALGRIND
1007	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1159	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1008	#endif	1160	#endif
1009		1161
1010	#if HAVE_MMAP	1162	#if HAVE_MMAP
1011	if (cctx->flags & CC_MAPPED)	1163	if (cctx->flags & CC_MAPPED)
1012	munmap (cctx->sptr, cctx->ssize);	1164	munmap (cctx->sptr, cctx->ssize);
1013	else	1165	else
1014	#endif	1166	#endif
1015	Safefree (cctx->sptr);	1167	Safefree (cctx->sptr);
		1168	}
1016		1169
1017	Safefree (cctx);	1170	Safefree (cctx);
1018	}	1171	}
1019		1172
1020	/* wether this cctx should be destructed */	1173	/* wether this cctx should be destructed */
1021	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1174	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1022		1175
1023	static coro_cctx *	1176	static coro_cctx *
1024	cctx_get (pTHX)	1177	cctx_get (pTHX)
1025	{	1178	{
1026	while (expect_true (cctx_first))	1179	while (expect_true (cctx_first))
…		…
1039	}	1192	}
1040		1193
1041	static void	1194	static void
1042	cctx_put (coro_cctx *cctx)	1195	cctx_put (coro_cctx *cctx)
1043	{	1196	{
		1197	assert (("cctx_put called on non-initialised cctx", cctx->sptr));
		1198
1044	/* free another cctx if overlimit */	1199	/* free another cctx if overlimit */
1045	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1200	if (expect_false (cctx_idle >= cctx_max_idle))
1046	{	1201	{
1047	coro_cctx *first = cctx_first;	1202	coro_cctx *first = cctx_first;
1048	cctx_first = first->next;	1203	cctx_first = first->next;
1049	--cctx_idle;	1204	--cctx_idle;
1050		1205
…		…
1070	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1225	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1071		1226
1072	if (expect_false (next->flags & CF_DESTROYED))	1227	if (expect_false (next->flags & CF_DESTROYED))
1073	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1228	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1074		1229
1075	if (
1076	#if PERL_VERSION_ATLEAST (5,9,0)	1230	#if !PERL_VERSION_ATLEAST (5,10,0)
1077	expect_false (PL_parser)
1078	#else
1079	expect_false (PL_lex_state != LEX_NOTPARSING)	1231	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1080	#endif
1081	)
1082	croak ("Coro::State::transfer called while parsing, but this is not supported");	1232	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1233	#endif
1083	}	1234	}
1084	}	1235	}
1085		1236
1086	/* always use the TRANSFER macro */	1237	/* always use the TRANSFER macro */
1087	static void NOINLINE	1238	static void NOINLINE
1088	transfer (pTHX_ struct coro prev, struct coro next)	1239	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1089	{	1240	{
1090	dSTACKLEVEL;	1241	dSTACKLEVEL;
1091		1242
1092	/* sometimes transfer is only called to set idle_sp */	1243	/* sometimes transfer is only called to set idle_sp */
1093	if (expect_false (!next))	1244	if (expect_false (!next))
…		…
1095	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1246	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1096	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1247	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1097	}	1248	}
1098	else if (expect_true (prev != next))	1249	else if (expect_true (prev != next))
1099	{	1250	{
		1251	static volatile int has_throw;
1100	coro_cctx *prev__cctx;	1252	coro_cctx *prev__cctx;
1101		1253
1102	if (expect_false (prev->flags & CF_NEW))	1254	if (expect_false (prev->flags & CF_NEW))
1103	{	1255	{
1104	/* create a new empty context */	1256	/* create a new empty/source context */
		1257	++cctx_count;
1105	Newz (0, prev->cctx, 1, coro_cctx);	1258	New (0, prev->cctx, 1, coro_cctx);
		1259	prev->cctx->sptr = 0;
		1260	coro_create (&prev->cctx->cctx, 0, 0, 0, 0);
		1261
1106	prev->flags &= ~CF_NEW;	1262	prev->flags &= ~CF_NEW;
1107	prev->flags \|= CF_RUNNING;	1263	prev->flags \|= CF_RUNNING;
1108	}	1264	}
1109		1265
1110	prev->flags &= ~CF_RUNNING;	1266	prev->flags &= ~CF_RUNNING;
1111	next->flags \|= CF_RUNNING;	1267	next->flags \|= CF_RUNNING;
1112		1268
1113	LOCK;	1269	LOCK;
		1270
		1271	/* first get rid of the old state */
		1272	save_perl (aTHX_ prev);
1114		1273
1115	if (expect_false (next->flags & CF_NEW))	1274	if (expect_false (next->flags & CF_NEW))
1116	{	1275	{
1117	/* need to start coroutine */	1276	/* need to start coroutine */
1118	next->flags &= ~CF_NEW;	1277	next->flags &= ~CF_NEW;
1119	/* first get rid of the old state */
1120	save_perl (aTHX_ prev);
1121	/* setup coroutine call */	1278	/* setup coroutine call */
1122	coro_setup (aTHX_ next);	1279	coro_setup (aTHX_ next);
1123	}	1280	}
1124	else	1281	else
1125	{
1126	/* coroutine already started */
1127	save_perl (aTHX_ prev);
1128	load_perl (aTHX_ next);	1282	load_perl (aTHX_ next);
1129	}
1130		1283
1131	prev__cctx = prev->cctx;	1284	prev__cctx = prev->cctx;
1132		1285
1133	/* possibly "free" the cctx */	1286	/* possibly "free" the cctx */
1134	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1287	if (expect_true (
		1288	prev__cctx->idle_sp == STACKLEVEL
		1289	&& !(prev__cctx->flags & CC_TRACE)
		1290	&& !force_cctx
		1291	))
1135	{	1292	{
1136	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1293	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1137	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1294	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1138		1295
1139	prev->cctx = 0;	1296	prev->cctx = 0;
…		…
1149		1306
1150	++next->usecount;	1307	++next->usecount;
1151		1308
1152	if (expect_true (!next->cctx))	1309	if (expect_true (!next->cctx))
1153	next->cctx = cctx_get (aTHX);	1310	next->cctx = cctx_get (aTHX);
		1311
		1312	has_throw = !!next->throw;
1154		1313
1155	if (expect_false (prev__cctx != next->cctx))	1314	if (expect_false (prev__cctx != next->cctx))
1156	{	1315	{
1157	prev__cctx->top_env = PL_top_env;	1316	prev__cctx->top_env = PL_top_env;
1158	PL_top_env = next->cctx->top_env;	1317	PL_top_env = next->cctx->top_env;
…		…
1160	}	1319	}
1161		1320
1162	free_coro_mortal (aTHX);	1321	free_coro_mortal (aTHX);
1163	UNLOCK;	1322	UNLOCK;
1164		1323
1165	if (expect_false (prev->throw \|\| next->throw))	1324	if (expect_false (has_throw))
1166	{	1325	{
1167	struct coro *coro = SvSTATE (coro_current);	1326	struct coro *coro = SvSTATE (coro_current);
1168		1327
1169	if (coro->throw)	1328	if (coro->throw)
1170	{	1329	{
…		…
1180	struct transfer_args	1339	struct transfer_args
1181	{	1340	{
1182	struct coro prev, next;	1341	struct coro prev, next;
1183	};	1342	};
1184		1343
1185	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1344	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1186	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1345	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1187		1346
1188	/ high level stuff ******************************************************/	1347	/ high level stuff ******************************************************/
1189		1348
1190	static int	1349	static int
…		…
1214	croak ("FATAL: tried to destroy currently running coroutine");	1373	croak ("FATAL: tried to destroy currently running coroutine");
1215		1374
1216	save_perl (aTHX_ &temp);	1375	save_perl (aTHX_ &temp);
1217	load_perl (aTHX_ coro);	1376	load_perl (aTHX_ coro);
1218		1377
1219	coro_destroy (aTHX_ coro);	1378	coro_destruct (aTHX_ coro);
1220		1379
1221	load_perl (aTHX_ &temp);	1380	load_perl (aTHX_ &temp);
1222		1381
1223	coro->slot = 0;	1382	coro->slot = 0;
1224	}	1383	}
…		…
1284	{	1443	{
1285	dTHX;	1444	dTHX;
1286	struct transfer_args ta;	1445	struct transfer_args ta;
1287		1446
1288	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1447	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1289	TRANSFER (ta);	1448	TRANSFER (ta, 1);
1290	}	1449	}
1291		1450
1292	/ Coro ******************************************************************/	1451	/ Coro ******************************************************************/
1293		1452
1294	static void	1453	static void
…		…
1296	{	1455	{
1297	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1456	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1298	}	1457	}
1299		1458
1300	static SV *	1459	static SV *
1301	coro_deq (pTHX_ int min_prio)	1460	coro_deq (pTHX)
1302	{	1461	{
1303	int prio = PRIO_MAX - PRIO_MIN;	1462	int prio;
1304		1463
1305	min_prio -= PRIO_MIN;
1306	if (min_prio < 0)
1307	min_prio = 0;
1308
1309	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1464	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1310	if (AvFILLp (coro_ready [prio]) >= 0)	1465	if (AvFILLp (coro_ready [prio]) >= 0)
1311	return av_shift (coro_ready [prio]);	1466	return av_shift (coro_ready [prio]);
1312		1467
1313	return 0;	1468	return 0;
1314	}	1469	}
…		…
1316	static int	1471	static int
1317	api_ready (SV *coro_sv)	1472	api_ready (SV *coro_sv)
1318	{	1473	{
1319	dTHX;	1474	dTHX;
1320	struct coro *coro;	1475	struct coro *coro;
		1476	SV *sv_hook;
		1477	void (*xs_hook)(void);
1321		1478
1322	if (SvROK (coro_sv))	1479	if (SvROK (coro_sv))
1323	coro_sv = SvRV (coro_sv);	1480	coro_sv = SvRV (coro_sv);
1324		1481
1325	coro = SvSTATE (coro_sv);	1482	coro = SvSTATE (coro_sv);
…		…
1328	return 0;	1485	return 0;
1329		1486
1330	coro->flags \|= CF_READY;	1487	coro->flags \|= CF_READY;
1331		1488
1332	LOCK;	1489	LOCK;
		1490
		1491	sv_hook = coro_nready ? 0 : coro_readyhook;
		1492	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1493
1333	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1494	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1334	++coro_nready;	1495	++coro_nready;
		1496
1335	UNLOCK;	1497	UNLOCK;
		1498
		1499	if (sv_hook)
		1500	{
		1501	dSP;
		1502
		1503	ENTER;
		1504	SAVETMPS;
		1505
		1506	PUSHMARK (SP);
		1507	PUTBACK;
		1508	call_sv (sv_hook, G_DISCARD);
		1509	SPAGAIN;
		1510
		1511	FREETMPS;
		1512	LEAVE;
		1513	}
		1514
		1515	if (xs_hook)
		1516	xs_hook ();
1336		1517
1337	return 1;	1518	return 1;
1338	}	1519	}
1339		1520
1340	static int	1521	static int
…		…
1350	SV prev_sv, next_sv;	1531	SV prev_sv, next_sv;
1351		1532
1352	for (;;)	1533	for (;;)
1353	{	1534	{
1354	LOCK;	1535	LOCK;
1355	next_sv = coro_deq (aTHX_ PRIO_MIN);	1536	next_sv = coro_deq (aTHX);
1356		1537
1357	/* nothing to schedule: call the idle handler */	1538	/* nothing to schedule: call the idle handler */
1358	if (expect_false (!next_sv))	1539	if (expect_false (!next_sv))
1359	{	1540	{
1360	dSP;	1541	dSP;
…		…
1364	SAVETMPS;	1545	SAVETMPS;
1365		1546
1366	PUSHMARK (SP);	1547	PUSHMARK (SP);
1367	PUTBACK;	1548	PUTBACK;
1368	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1549	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1550	SPAGAIN;
1369		1551
1370	FREETMPS;	1552	FREETMPS;
1371	LEAVE;	1553	LEAVE;
1372	continue;	1554	continue;
1373	}	1555	}
…		…
1428	{	1610	{
1429	dTHX;	1611	dTHX;
1430	struct transfer_args ta;	1612	struct transfer_args ta;
1431		1613
1432	prepare_schedule (aTHX_ &ta);	1614	prepare_schedule (aTHX_ &ta);
1433	TRANSFER (ta);	1615	TRANSFER (ta, 1);
1434	}	1616	}
1435		1617
1436	static int	1618	static int
1437	api_cede (void)	1619	api_cede (void)
1438	{	1620	{
…		…
1441		1623
1442	prepare_cede (aTHX_ &ta);	1624	prepare_cede (aTHX_ &ta);
1443		1625
1444	if (expect_true (ta.prev != ta.next))	1626	if (expect_true (ta.prev != ta.next))
1445	{	1627	{
1446	TRANSFER (ta);	1628	TRANSFER (ta, 1);
1447	return 1;	1629	return 1;
1448	}	1630	}
1449	else	1631	else
1450	return 0;	1632	return 0;
1451	}	1633	}
…		…
1456	dTHX;	1638	dTHX;
1457	struct transfer_args ta;	1639	struct transfer_args ta;
1458		1640
1459	if (prepare_cede_notself (aTHX_ &ta))	1641	if (prepare_cede_notself (aTHX_ &ta))
1460	{	1642	{
1461	TRANSFER (ta);	1643	TRANSFER (ta, 1);
1462	return 1;	1644	return 1;
1463	}	1645	}
1464	else	1646	else
1465	return 0;	1647	return 0;
1466	}	1648	}
…		…
1489	else	1671	else
1490	coro->slot->runops = RUNOPS_DEFAULT;	1672	coro->slot->runops = RUNOPS_DEFAULT;
1491	}	1673	}
1492	}	1674	}
1493		1675
		1676	#if 0
		1677	static int
		1678	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1679	{
		1680	AV *padlist;
		1681	AV av = (AV )mg->mg_obj;
		1682
		1683	abort ();
		1684
		1685	return 0;
		1686	}
		1687
		1688	static MGVTBL coro_gensub_vtbl = {
		1689	0, 0, 0, 0,
		1690	coro_gensub_free
		1691	};
		1692	#endif
		1693
		1694	/*****************************************************************************/
		1695	/* PerlIO::cede */
		1696
		1697	typedef struct
		1698	{
		1699	PerlIOBuf base;
		1700	NV next, every;
		1701	} PerlIOCede;
		1702
		1703	static IV
		1704	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1705	{
		1706	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1707
		1708	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1709	self->next = nvtime () + self->every;
		1710
		1711	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1712	}
		1713
		1714	static SV *
		1715	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1716	{
		1717	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1718
		1719	return newSVnv (self->every);
		1720	}
		1721
		1722	static IV
		1723	PerlIOCede_flush (pTHX_ PerlIO *f)
		1724	{
		1725	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1726	double now = nvtime ();
		1727
		1728	if (now >= self->next)
		1729	{
		1730	api_cede ();
		1731	self->next = now + self->every;
		1732	}
		1733
		1734	return PerlIOBuf_flush (aTHX_ f);
		1735	}
		1736
		1737	static PerlIO_funcs PerlIO_cede =
		1738	{
		1739	sizeof(PerlIO_funcs),
		1740	"cede",
		1741	sizeof(PerlIOCede),
		1742	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1743	PerlIOCede_pushed,
		1744	PerlIOBuf_popped,
		1745	PerlIOBuf_open,
		1746	PerlIOBase_binmode,
		1747	PerlIOCede_getarg,
		1748	PerlIOBase_fileno,
		1749	PerlIOBuf_dup,
		1750	PerlIOBuf_read,
		1751	PerlIOBuf_unread,
		1752	PerlIOBuf_write,
		1753	PerlIOBuf_seek,
		1754	PerlIOBuf_tell,
		1755	PerlIOBuf_close,
		1756	PerlIOCede_flush,
		1757	PerlIOBuf_fill,
		1758	PerlIOBase_eof,
		1759	PerlIOBase_error,
		1760	PerlIOBase_clearerr,
		1761	PerlIOBase_setlinebuf,
		1762	PerlIOBuf_get_base,
		1763	PerlIOBuf_bufsiz,
		1764	PerlIOBuf_get_ptr,
		1765	PerlIOBuf_get_cnt,
		1766	PerlIOBuf_set_ptrcnt,
		1767	};
		1768
		1769
1494	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1770	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1495		1771
1496	PROTOTYPES: DISABLE	1772	PROTOTYPES: DISABLE
1497		1773
1498	BOOT:	1774	BOOT:
1499	{	1775	{
1500	#ifdef USE_ITHREADS	1776	#ifdef USE_ITHREADS
1501	MUTEX_INIT (&coro_mutex);	1777	MUTEX_INIT (&coro_lock);
		1778	# if CORO_PTHREAD
		1779	coro_thx = PERL_GET_CONTEXT;
		1780	# endif
1502	#endif	1781	#endif
1503	BOOT_PAGESIZE;	1782	BOOT_PAGESIZE;
1504		1783
1505	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1784	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1506	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1785	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1507		1786
		1787	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1788	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1789	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1790
1508	hv_sig = coro_get_hv ("SIG", TRUE);	1791	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1509	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1792	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1510	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1793	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1511
1512	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1513	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1514		1794
1515	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1795	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1516		1796
1517	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1797	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1518	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1798	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1523	main_top_env = PL_top_env;	1803	main_top_env = PL_top_env;
1524		1804
1525	while (main_top_env->je_prev)	1805	while (main_top_env->je_prev)
1526	main_top_env = main_top_env->je_prev;	1806	main_top_env = main_top_env->je_prev;
1527		1807
1528	coroapi.ver = CORO_API_VERSION;	1808	coroapi.ver = CORO_API_VERSION;
		1809	coroapi.rev = CORO_API_REVISION;
1529	coroapi.transfer = api_transfer;	1810	coroapi.transfer = api_transfer;
		1811
		1812	{
		1813	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1814
		1815	if (!svp) croak ("Time::HiRes is required");
		1816	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1817
		1818	nvtime = INT2PTR (double ()(), SvIV (svp));
		1819	}
1530		1820
1531	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1821	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1532	}	1822	}
1533		1823
1534	SV *	1824	SV *
1535	new (char *klass, ...)	1825	new (char *klass, ...)
1536	CODE:	1826	CODE:
1537	{	1827	{
1538	struct coro *coro;	1828	struct coro *coro;
		1829	MAGIC *mg;
1539	HV *hv;	1830	HV *hv;
1540	int i;	1831	int i;
1541		1832
1542	Newz (0, coro, 1, struct coro);	1833	Newz (0, coro, 1, struct coro);
1543	coro->args = newAV ();	1834	coro->args = newAV ();
…		…
1546	if (coro_first) coro_first->prev = coro;	1837	if (coro_first) coro_first->prev = coro;
1547	coro->next = coro_first;	1838	coro->next = coro_first;
1548	coro_first = coro;	1839	coro_first = coro;
1549		1840
1550	coro->hv = hv = newHV ();	1841	coro->hv = hv = newHV ();
1551	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1842	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1843	mg->mg_flags \|= MGf_DUP;
1552	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1844	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1553		1845
1554	av_extend (coro->args, items - 1);	1846	av_extend (coro->args, items - 1);
1555	for (i = 1; i < items; i++)	1847	for (i = 1; i < items; i++)
1556	av_push (coro->args, newSVsv (ST (i)));	1848	av_push (coro->args, newSVsv (ST (i)));
…		…
1570	Coro::cede_notself = 4	1862	Coro::cede_notself = 4
1571	CODE:	1863	CODE:
1572	{	1864	{
1573	struct transfer_args ta;	1865	struct transfer_args ta;
1574		1866
		1867	PUTBACK;
1575	switch (ix)	1868	switch (ix)
1576	{	1869	{
1577	case 0:	1870	case 0:
1578	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1871	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1579	ta.next = 0;	1872	ta.next = 0;
1580	break;	1873	break;
1581		1874
1582	case 1:	1875	case 1:
1583	if (items != 2)	1876	if (items != 2)
1584	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1877	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1585		1878
1586	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1879	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1587	break;	1880	break;
1588		1881
1589	case 2:	1882	case 2:
…		…
1598	if (!prepare_cede_notself (aTHX_ &ta))	1891	if (!prepare_cede_notself (aTHX_ &ta))
1599	XSRETURN_EMPTY;	1892	XSRETURN_EMPTY;
1600		1893
1601	break;	1894	break;
1602	}	1895	}
		1896	SPAGAIN;
1603		1897
1604	BARRIER;	1898	BARRIER;
		1899	PUTBACK;
1605	TRANSFER (ta);	1900	TRANSFER (ta, 0);
1606		1901	SPAGAIN; /* might be the sp of a different coroutine now */
1607	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1902	/* be extra careful not to ever do anything after TRANSFER */
1608	XSRETURN_YES;
1609	}	1903	}
1610		1904
1611	bool	1905	bool
1612	_destroy (SV *coro_sv)	1906	_destroy (SV *coro_sv)
1613	CODE:	1907	CODE:
1614	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1908	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1615	OUTPUT:	1909	OUTPUT:
1616	RETVAL	1910	RETVAL
1617		1911
1618	void	1912	void
1619	_exit (code)	1913	_exit (int code)
1620	int code
1621	PROTOTYPE: $	1914	PROTOTYPE: $
1622	CODE:	1915	CODE:
1623	_exit (code);	1916	_exit (code);
1624		1917
1625	int	1918	int
1626	cctx_stacksize (int new_stacksize = 0)	1919	cctx_stacksize (int new_stacksize = 0)
1627	CODE:	1920	CODE:
1628	RETVAL = coro_stacksize;	1921	RETVAL = cctx_stacksize;
1629	if (new_stacksize)	1922	if (new_stacksize)
		1923	{
1630	coro_stacksize = new_stacksize;	1924	cctx_stacksize = new_stacksize;
		1925	++cctx_gen;
		1926	}
		1927	OUTPUT:
		1928	RETVAL
		1929
		1930	int
		1931	cctx_max_idle (int max_idle = 0)
		1932	CODE:
		1933	RETVAL = cctx_max_idle;
		1934	if (max_idle > 1)
		1935	cctx_max_idle = max_idle;
1631	OUTPUT:	1936	OUTPUT:
1632	RETVAL	1937	RETVAL
1633		1938
1634	int	1939	int
1635	cctx_count ()	1940	cctx_count ()
…		…
1659	call (Coro::State coro, SV *coderef)	1964	call (Coro::State coro, SV *coderef)
1660	ALIAS:	1965	ALIAS:
1661	eval = 1	1966	eval = 1
1662	CODE:	1967	CODE:
1663	{	1968	{
1664	if (coro->mainstack)	1969	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1665	{	1970	{
1666	struct coro temp;	1971	struct coro temp;
1667		1972
1668	if (!(coro->flags & CF_RUNNING))	1973	if (!(coro->flags & CF_RUNNING))
1669	{	1974	{
		1975	PUTBACK;
1670	save_perl (aTHX_ &temp);	1976	save_perl (aTHX_ &temp);
1671	load_perl (aTHX_ coro);	1977	load_perl (aTHX_ coro);
1672	}	1978	}
1673		1979
1674	{	1980	{
1675	dSP;	1981	dSP;
1676	ENTER;	1982	ENTER;
1677	SAVETMPS;	1983	SAVETMPS;
		1984	PUTBACK;
		1985	PUSHSTACK;
1678	PUSHMARK (SP);	1986	PUSHMARK (SP);
1679	PUTBACK;
1680		1987
1681	if (ix)	1988	if (ix)
1682	eval_sv (coderef, 0);	1989	eval_sv (coderef, 0);
1683	else	1990	else
1684	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1991	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1685		1992
		1993	POPSTACK;
1686	SPAGAIN;	1994	SPAGAIN;
1687	FREETMPS;	1995	FREETMPS;
1688	LEAVE;	1996	LEAVE;
1689	PUTBACK;	1997	PUTBACK;
1690	}	1998	}
1691		1999
1692	if (!(coro->flags & CF_RUNNING))	2000	if (!(coro->flags & CF_RUNNING))
1693	{	2001	{
1694	save_perl (aTHX_ coro);	2002	save_perl (aTHX_ coro);
1695	load_perl (aTHX_ &temp);	2003	load_perl (aTHX_ &temp);
		2004	SPAGAIN;
1696	}	2005	}
1697	}	2006	}
1698	}	2007	}
1699		2008
1700	SV *	2009	SV *
…		…
1712		2021
1713	void	2022	void
1714	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2023	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1715		2024
1716	SV *	2025	SV *
1717	has_stack (Coro::State coro)	2026	has_cctx (Coro::State coro)
1718	PROTOTYPE: $	2027	PROTOTYPE: $
1719	CODE:	2028	CODE:
1720	RETVAL = boolSV (!!coro->cctx);	2029	RETVAL = boolSV (!!coro->cctx);
1721	OUTPUT:	2030	OUTPUT:
1722	RETVAL	2031	RETVAL
…		…
1727	CODE:	2036	CODE:
1728	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2037	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1729	OUTPUT:	2038	OUTPUT:
1730	RETVAL	2039	RETVAL
1731		2040
1732	IV	2041	UV
1733	rss (Coro::State coro)	2042	rss (Coro::State coro)
1734	PROTOTYPE: $	2043	PROTOTYPE: $
1735	ALIAS:	2044	ALIAS:
1736	usecount = 1	2045	usecount = 1
1737	CODE:	2046	CODE:
…		…
1741	case 1: RETVAL = coro->usecount; break;	2050	case 1: RETVAL = coro->usecount; break;
1742	}	2051	}
1743	OUTPUT:	2052	OUTPUT:
1744	RETVAL	2053	RETVAL
1745		2054
		2055	void
		2056	force_cctx ()
		2057	CODE:
		2058	struct coro *coro = SvSTATE (coro_current);
		2059	coro->cctx->idle_sp = 0;
		2060
		2061	void
		2062	swap_defsv (Coro::State self)
		2063	PROTOTYPE: $
		2064	ALIAS:
		2065	swap_defav = 1
		2066	CODE:
		2067	if (!self->slot)
		2068	croak ("cannot swap state with coroutine that has no saved state");
		2069	else
		2070	{
		2071	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2072	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2073
		2074	SV tmp = src; src = dst; *dst = tmp;
		2075	}
1746		2076
1747	MODULE = Coro::State PACKAGE = Coro	2077	MODULE = Coro::State PACKAGE = Coro
1748		2078
1749	BOOT:	2079	BOOT:
1750	{	2080	{
1751	int i;	2081	int i;
1752		2082
1753	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1754	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1755	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	2083	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2084	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2085	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1756		2086
1757	coro_current = coro_get_sv ("Coro::current", FALSE);	2087	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1758	SvREADONLY_on (coro_current);	2088	SvREADONLY_on (coro_current);
1759		2089
1760	coro_stash = gv_stashpv ("Coro", TRUE);	2090	coro_stash = gv_stashpv ("Coro", TRUE);
1761		2091
1762	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2092	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1790	void	2120	void
1791	_set_current (SV *current)	2121	_set_current (SV *current)
1792	PROTOTYPE: $	2122	PROTOTYPE: $
1793	CODE:	2123	CODE:
1794	SvREFCNT_dec (SvRV (coro_current));	2124	SvREFCNT_dec (SvRV (coro_current));
1795	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2125	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2126
		2127	void
		2128	_set_readyhook (SV *hook)
		2129	PROTOTYPE: $
		2130	CODE:
		2131	LOCK;
		2132	SvREFCNT_dec (coro_readyhook);
		2133	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2134	UNLOCK;
1796		2135
1797	int	2136	int
1798	prio (Coro::State coro, int newprio = 0)	2137	prio (Coro::State coro, int newprio = 0)
1799	ALIAS:	2138	ALIAS:
1800	nice = 1	2139	nice = 1
…		…
1845	CODE:	2184	CODE:
1846	{	2185	{
1847	struct coro *coro = SvSTATE (coro_current);	2186	struct coro *coro = SvSTATE (coro_current);
1848	HV hv = (HV )SvRV (coro_current);	2187	HV hv = (HV )SvRV (coro_current);
1849	AV *defav = GvAV (PL_defgv);	2188	AV *defav = GvAV (PL_defgv);
1850	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2189	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1851	AV *invoke_av;	2190	AV *invoke_av;
1852	int i, len;	2191	int i, len;
1853		2192
1854	if (!invoke)	2193	if (!invoke)
		2194	{
		2195	SV *old = PL_diehook;
		2196	PL_diehook = 0;
		2197	SvREFCNT_dec (old);
1855	croak ("\3async_pool terminate\2\n");	2198	croak ("\3async_pool terminate\2\n");
		2199	}
1856		2200
1857	SvREFCNT_dec (coro->saved_deffh);	2201	SvREFCNT_dec (coro->saved_deffh);
1858	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2202	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1859		2203
1860	hv_store (hv, "desc", sizeof ("desc") - 1,	2204	hv_store (hv, "desc", sizeof ("desc") - 1,
1861	newSVpvn (strpair ("[async_pool]")), 0);	2205	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1862		2206
1863	invoke_av = (AV *)SvRV (invoke);	2207	invoke_av = (AV *)SvRV (invoke);
1864	len = av_len (invoke_av);	2208	len = av_len (invoke_av);
1865		2209
1866	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2210	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1867		2211
1868	if (len > 0)	2212	if (len > 0)
1869	{	2213	{
1870	av_fill (defav, len - 1);	2214	av_fill (defav, len - 1);
1871	for (i = 0; i < len; ++i)	2215	for (i = 0; i < len; ++i)
1872	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2216	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1873	}	2217	}
1874		2218
1875	SvREFCNT_dec (invoke);	2219	SvREFCNT_dec (invoke);
1876	}	2220	}
1877		2221
…		…
1884	sv_setsv (cb, &PL_sv_undef);	2228	sv_setsv (cb, &PL_sv_undef);
1885		2229
1886	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2230	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1887	coro->saved_deffh = 0;	2231	coro->saved_deffh = 0;
1888		2232
1889	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2233	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1890	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2234	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2235	{
		2236	SV *old = PL_diehook;
		2237	PL_diehook = 0;
		2238	SvREFCNT_dec (old);
1891	croak ("\3async_pool terminate\2\n");	2239	croak ("\3async_pool terminate\2\n");
		2240	}
1892		2241
1893	av_clear (GvAV (PL_defgv));	2242	av_clear (GvAV (PL_defgv));
1894	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2243	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1895	newSVpvn (strpair ("[async_pool idle]")), 0);	2244	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1896		2245
1897	coro->prio = 0;	2246	coro->prio = 0;
1898		2247
1899	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2248	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1900	api_trace (coro_current, 0);	2249	api_trace (coro_current, 0);
1901		2250
1902	av_push (av_async_pool, newSVsv (coro_current));	2251	av_push (av_async_pool, newSVsv (coro_current));
1903	}	2252	}
1904		2253
		2254	#if 0
		2255
		2256	void
		2257	_generator_call (...)
		2258	PROTOTYPE: @
		2259	PPCODE:
		2260	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2261	xxxx
		2262	abort ();
		2263
		2264	SV *
		2265	gensub (SV *sub, ...)
		2266	PROTOTYPE: &;@
		2267	CODE:
		2268	{
		2269	struct coro *coro;
		2270	MAGIC *mg;
		2271	CV *xcv;
		2272	CV ncv = (CV )newSV_type (SVt_PVCV);
		2273	int i;
		2274
		2275	CvGV (ncv) = CvGV (cv);
		2276	CvFILE (ncv) = CvFILE (cv);
		2277
		2278	Newz (0, coro, 1, struct coro);
		2279	coro->args = newAV ();
		2280	coro->flags = CF_NEW;
		2281
		2282	av_extend (coro->args, items - 1);
		2283	for (i = 1; i < items; i++)
		2284	av_push (coro->args, newSVsv (ST (i)));
		2285
		2286	CvISXSUB_on (ncv);
		2287	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2288
		2289	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2290
		2291	CvXSUB (ncv) = CvXSUB (xcv);
		2292	CvANON_on (ncv);
		2293
		2294	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2295	RETVAL = newRV_noinc ((SV *)ncv);
		2296	}
		2297	OUTPUT:
		2298	RETVAL
		2299
		2300	#endif
		2301
1905		2302
1906	MODULE = Coro::State PACKAGE = Coro::AIO	2303	MODULE = Coro::State PACKAGE = Coro::AIO
1907		2304
1908	SV *	2305	void
1909	_get_state ()	2306	_get_state (SV *self)
1910	CODE:	2307	PPCODE:
1911	{	2308	{
1912	struct io_state *data;	2309	AV *defav = GvAV (PL_defgv);
1913		2310	AV *av = newAV ();
		2311	int i;
1914	RETVAL = newSV (sizeof (struct io_state));	2312	SV *data_sv = newSV (sizeof (struct io_state));
1915	data = (struct io_state *)SvPVX (RETVAL);	2313	struct io_state data = (struct io_state )SvPVX (data_sv);
1916	SvCUR_set (RETVAL, sizeof (struct io_state));	2314	SvCUR_set (data_sv, sizeof (struct io_state));
1917	SvPOK_only (RETVAL);	2315	SvPOK_only (data_sv);
1918		2316
1919	data->errorno = errno;	2317	data->errorno = errno;
1920	data->laststype = PL_laststype;	2318	data->laststype = PL_laststype;
1921	data->laststatval = PL_laststatval;	2319	data->laststatval = PL_laststatval;
1922	data->statcache = PL_statcache;	2320	data->statcache = PL_statcache;
		2321
		2322	av_extend (av, AvFILLp (defav) + 1 + 1);
		2323
		2324	for (i = 0; i <= AvFILLp (defav); ++i)
		2325	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2326
		2327	av_push (av, data_sv);
		2328
		2329	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2330
		2331	api_ready (self);
1923	}	2332	}
1924	OUTPUT:
1925	RETVAL
1926		2333
1927	void	2334	void
1928	_set_state (char *data_)	2335	_set_state (SV *state)
1929	PROTOTYPE: $	2336	PROTOTYPE: $
1930	CODE:	2337	PPCODE:
1931	{	2338	{
1932	struct io_state data = (void )data_;	2339	AV av = (AV )SvRV (state);
		2340	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2341	int i;
1933		2342
1934	errno = data->errorno;	2343	errno = data->errorno;
1935	PL_laststype = data->laststype;	2344	PL_laststype = data->laststype;
1936	PL_laststatval = data->laststatval;	2345	PL_laststatval = data->laststatval;
1937	PL_statcache = data->statcache;	2346	PL_statcache = data->statcache;
1938	}
1939		2347
		2348	EXTEND (SP, AvFILLp (av));
		2349	for (i = 0; i < AvFILLp (av); ++i)
		2350	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2351	}
		2352
		2353
		2354	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2355
		2356	BOOT:
		2357	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2358
		2359	SV *
		2360	_schedule (...)
		2361	PROTOTYPE: @
		2362	CODE:
		2363	{
		2364	static int incede;
		2365
		2366	api_cede_notself ();
		2367
		2368	++incede;
		2369	while (coro_nready >= incede && api_cede ())
		2370	;
		2371
		2372	sv_setsv (sv_activity, &PL_sv_undef);
		2373	if (coro_nready >= incede)
		2374	{
		2375	PUSHMARK (SP);
		2376	PUTBACK;
		2377	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2378	SPAGAIN;
		2379	}
		2380
		2381	--incede;
		2382	}
		2383
		2384
		2385	MODULE = Coro::State PACKAGE = PerlIO::cede
		2386
		2387	BOOT:
		2388	PerlIO_define_layer (aTHX_ &PerlIO_cede);

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Comparing Coro/Coro/State.xs (file contents): Revision 1.202 by root, Mon Oct 8 02:50:23 2007 UTC vs. Revision 1.256 by root, Sat Nov 8 13:32:18 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.202 by root, Mon Oct 8 02:50:23 2007 UTC vs.
Revision 1.256 by root, Sat Nov 8 13:32:18 2008 UTC