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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.225 by root, Wed Mar 12 14:13:11 2008 UTC vs.
Revision 1.263 by root, Wed Nov 12 04:49:06 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
15	#include <inttypes.h> /* portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
16		25
17	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
18	# include <unistd.h>	27	# include <unistd.h>
19	# include <sys/mman.h>	28	# include <sys/mman.h>
20	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
37	# define BOOT_PAGESIZE (void)0	46	# define BOOT_PAGESIZE (void)0
38	#endif	47	#endif
39		48
40	#if CORO_USE_VALGRIND	49	#if CORO_USE_VALGRIND
41	# include <valgrind/valgrind.h>	50	# include <valgrind/valgrind.h>
42	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
43	#else
44	# define REGISTER_STACK(cctx,start,end)
45	#endif	51	#endif
46		52
47	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
48	#define MAX_IDLE_CCTX 8	54	static int cctx_max_idle = 4;
49		55
50	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
51	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
52	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
53	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
…		…
72	# ifndef IS_PADCONST	78	# ifndef IS_PADCONST
73	# define IS_PADCONST(v) 0	79	# define IS_PADCONST(v) 0
74	# endif	80	# endif
75	#endif	81	#endif
76		82
		83	/* 5.11 */
		84	#ifndef CxHASARGS
		85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		86	#endif
		87
		88	/* 5.10.0 */
		89	#ifndef SvREFCNT_inc_NN
		90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		91	#endif
		92
77	/* 5.8.8 */	93	/* 5.8.8 */
78	#ifndef GV_NOTQUAL	94	#ifndef GV_NOTQUAL
79	# define GV_NOTQUAL 0	95	# define GV_NOTQUAL 0
80	#endif	96	#endif
81	#ifndef newSV	97	#ifndef newSV
82	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
83	#endif
84
85	/* 5.11 */
86	#ifndef CxHASARGS
87	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
88	#endif	99	#endif
89		100
90	/* 5.8.7 */	101	/* 5.8.7 */
91	#ifndef SvRV_set	102	#ifndef SvRV_set
92	# define SvRV_set(s,v) SvRV(s) = (v)	103	# define SvRV_set(s,v) SvRV(s) = (v)
…		…
114		125
115	#if __GNUC__ >= 3	126	#if __GNUC__ >= 3
116	# define attribute(x) __attribute__(x)	127	# define attribute(x) __attribute__(x)
117	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	128	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
118	# define expect(expr,value) __builtin_expect ((expr),(value))	129	# define expect(expr,value) __builtin_expect ((expr),(value))
		130	# define INLINE static inline
119	#else	131	#else
120	# define attribute(x)	132	# define attribute(x)
121	# define BARRIER	133	# define BARRIER
122	# define expect(expr,value) (expr)	134	# define expect(expr,value) (expr)
		135	# define INLINE static
123	#endif	136	#endif
124		137
125	#define expect_false(expr) expect ((expr) != 0, 0)	138	#define expect_false(expr) expect ((expr) != 0, 0)
126	#define expect_true(expr) expect ((expr) != 0, 1)	139	#define expect_true(expr) expect ((expr) != 0, 1)
127		140
128	#define NOINLINE attribute ((noinline))	141	#define NOINLINE attribute ((noinline))
129		142
130	#include "CoroAPI.h"	143	#include "CoroAPI.h"
131		144
132	#ifdef USE_ITHREADS	145	#ifdef USE_ITHREADS
		146
133	static perl_mutex coro_mutex;	147	static perl_mutex coro_lock;
134	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	148	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
135	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	149	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		150	# if CORO_PTHREAD
		151	static void *coro_thx;
		152	# endif
		153
136	#else	154	#else
		155
137	# define LOCK (void)0	156	# define LOCK (void)0
138	# define UNLOCK (void)0	157	# define UNLOCK (void)0
		158
139	#endif	159	#endif
		160
		161	# undef LOCK
		162	# define LOCK (void)0
		163	# undef UNLOCK
		164	# define UNLOCK (void)0
140		165
141	/* helper storage struct for Coro::AIO */	166	/* helper storage struct for Coro::AIO */
142	struct io_state	167	struct io_state
143	{	168	{
		169	AV *res;
144	int errorno;	170	int errorno;
145	I32 laststype;	171	I32 laststype; /* U16 in 5.10.0 */
146	int laststatval;	172	int laststatval;
147	Stat_t statcache;	173	Stat_t statcache;
148	};	174	};
149		175
		176	static double (nvtime)(); / so why doesn't it take void? */
		177
		178	static U32 cctx_gen;
150	static size_t coro_stacksize = CORO_STACKSIZE;	179	static size_t cctx_stacksize = CORO_STACKSIZE;
151	static struct CoroAPI coroapi;	180	static struct CoroAPI coroapi;
152	static AV main_mainstack; / used to differentiate between $main and others */	181	static AV main_mainstack; / used to differentiate between $main and others */
153	static JMPENV *main_top_env;	182	static JMPENV *main_top_env;
154	static HV coro_state_stash, coro_stash;	183	static HV coro_state_stash, coro_stash;
155	static volatile SV coro_mortal; / will be freed after next transfer */	184	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		185	static volatile struct coro *transfer_next;
		186
		187	struct transfer_args
		188	{
		189	struct coro prev, next;
		190	};
156		191
157	static GV irsgv; / $/ */	192	static GV irsgv; / $/ */
158	static GV stdoutgv; / STDOUT /	193	static GV stdoutgv; / STDOUT /
159	static SV *rv_diehook;	194	static SV *rv_diehook;
160	static SV *rv_warnhook;	195	static SV *rv_warnhook;
…		…
162		197
163	/* async_pool helper stuff */	198	/* async_pool helper stuff */
164	static SV *sv_pool_rss;	199	static SV *sv_pool_rss;
165	static SV *sv_pool_size;	200	static SV *sv_pool_size;
166	static AV *av_async_pool;	201	static AV *av_async_pool;
		202
		203	/* Coro::AnyEvent */
		204	static SV *sv_activity;
167		205
168	static struct coro_cctx *cctx_first;	206	static struct coro_cctx *cctx_first;
169	static int cctx_count, cctx_idle;	207	static int cctx_count, cctx_idle;
170		208
171	enum {	209	enum {
…		…
189	void idle_sp; / sp of top-level transfer/schedule/cede call */	227	void idle_sp; / sp of top-level transfer/schedule/cede call */
190	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	228	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
191	JMPENV *top_env;	229	JMPENV *top_env;
192	coro_context cctx;	230	coro_context cctx;
193		231
		232	U32 gen;
194	#if CORO_USE_VALGRIND	233	#if CORO_USE_VALGRIND
195	int valgrind_id;	234	int valgrind_id;
196	#endif	235	#endif
197	unsigned char flags;	236	unsigned char flags;
198	} coro_cctx;	237	} coro_cctx;
…		…
257	#define PRIO_IDLE -3	296	#define PRIO_IDLE -3
258	#define PRIO_MIN -4	297	#define PRIO_MIN -4
259		298
260	/* for Coro.pm */	299	/* for Coro.pm */
261	static SV *coro_current;	300	static SV *coro_current;
		301	static SV *coro_readyhook;
262	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	302	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
263	static int coro_nready;	303	static int coro_nready;
264	static struct coro *coro_first;	304	static struct coro *coro_first;
265		305
266	/ lowlevel stuff ********************************************************/	306	/ lowlevel stuff ********************************************************/
267		307
268	static SV *	308	static SV *
269	coro_get_sv (pTHX_ const char *name, int create)	309	coro_get_sv (pTHX_ const char *name, int create)
270	{	310	{
271	#if PERL_VERSION_ATLEAST (5,9,0)	311	#if PERL_VERSION_ATLEAST (5,10,0)
272	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	312	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
273	get_sv (name, create);	313	get_sv (name, create);
274	#endif	314	#endif
275	return get_sv (name, create);	315	return get_sv (name, create);
276	}	316	}
277		317
278	static AV *	318	static AV *
279	coro_get_av (pTHX_ const char *name, int create)	319	coro_get_av (pTHX_ const char *name, int create)
280	{	320	{
281	#if PERL_VERSION_ATLEAST (5,9,0)	321	#if PERL_VERSION_ATLEAST (5,10,0)
282	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	322	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
283	get_av (name, create);	323	get_av (name, create);
284	#endif	324	#endif
285	return get_av (name, create);	325	return get_av (name, create);
286	}	326	}
287		327
288	static HV *	328	static HV *
289	coro_get_hv (pTHX_ const char *name, int create)	329	coro_get_hv (pTHX_ const char *name, int create)
290	{	330	{
291	#if PERL_VERSION_ATLEAST (5,9,0)	331	#if PERL_VERSION_ATLEAST (5,10,0)
292	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	332	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
293	get_hv (name, create);	333	get_hv (name, create);
294	#endif	334	#endif
295	return get_hv (name, create);	335	return get_hv (name, create);
296	}	336	}
…		…
301	AV *padlist = CvPADLIST (cv);	341	AV *padlist = CvPADLIST (cv);
302	AV newpadlist, newpad;	342	AV newpadlist, newpad;
303		343
304	newpadlist = newAV ();	344	newpadlist = newAV ();
305	AvREAL_off (newpadlist);	345	AvREAL_off (newpadlist);
306	#if PERL_VERSION_ATLEAST (5,9,0)	346	#if PERL_VERSION_ATLEAST (5,10,0)
307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	347	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
308	#else	348	#else
309	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	349	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
310	#endif	350	#endif
311	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	351	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
312	--AvFILLp (padlist);	352	--AvFILLp (padlist);
313		353
314	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	354	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
315	av_store (newpadlist, 1, (SV *)newpad);	355	av_store (newpadlist, 1, (SV *)newpad);
316		356
317	return newpadlist;	357	return newpadlist;
318	}	358	}
319		359
…		…
349		389
350	/* casting is fun. */	390	/* casting is fun. */
351	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	391	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
352	free_padlist (aTHX_ padlist);	392	free_padlist (aTHX_ padlist);
353		393
		394	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
		395
354	return 0;	396	return 0;
355	}	397	}
356		398
357	#define CORO_MAGIC_type_cv PERL_MAGIC_ext	399	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
358	#define CORO_MAGIC_type_state PERL_MAGIC_ext	400	#define CORO_MAGIC_type_state PERL_MAGIC_ext
…		…
360	static MGVTBL coro_cv_vtbl = {	402	static MGVTBL coro_cv_vtbl = {
361	0, 0, 0, 0,	403	0, 0, 0, 0,
362	coro_cv_free	404	coro_cv_free
363	};	405	};
364		406
365	#define CORO_MAGIC(sv,type) \	407	#define CORO_MAGIC(sv, type) \
366	SvMAGIC (sv) \	408	SvMAGIC (sv) \
367	? SvMAGIC (sv)->mg_type == type \	409	? SvMAGIC (sv)->mg_type == type \
368	? SvMAGIC (sv) \	410	? SvMAGIC (sv) \
369	: mg_find (sv, type) \	411	: mg_find (sv, type) \
370	: 0	412	: 0
371		413
372	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	414	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
373	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)	415	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
374		416
375	static struct coro *	417	INLINE struct coro *
376	SvSTATE_ (pTHX_ SV *coro)	418	SvSTATE_ (pTHX_ SV *coro)
377	{	419	{
378	HV *stash;	420	HV *stash;
379	MAGIC *mg;	421	MAGIC *mg;
380		422
…		…
408	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	450	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
409	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	451	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
410	else	452	else
411	{	453	{
412	#if CORO_PREFER_PERL_FUNCTIONS	454	#if CORO_PREFER_PERL_FUNCTIONS
413	/* this is probably cleaner, but also slower? */	455	/* this is probably cleaner? but also slower! */
		456	/* in practise, it seems to be less stable */
414	CV *cp = Perl_cv_clone (cv);	457	CV *cp = Perl_cv_clone (cv);
415	CvPADLIST (cv) = CvPADLIST (cp);	458	CvPADLIST (cv) = CvPADLIST (cp);
416	CvPADLIST (cp) = 0;	459	CvPADLIST (cp) = 0;
417	SvREFCNT_dec (cp);	460	SvREFCNT_dec (cp);
418	#else	461	#else
…		…
502		545
503	if (expect_true (CvDEPTH (cv)))	546	if (expect_true (CvDEPTH (cv)))
504	{	547	{
505	EXTEND (SP, 3);	548	EXTEND (SP, 3);
506	PUSHs ((SV *)CvPADLIST (cv));	549	PUSHs ((SV *)CvPADLIST (cv));
507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	550	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508	PUSHs ((SV *)cv);	551	PUSHs ((SV *)cv);
509		552
510	CvDEPTH (cv) = 0;	553	CvDEPTH (cv) = 0;
511	get_padlist (aTHX_ cv);	554	get_padlist (aTHX_ cv);
512	}	555	}
…		…
592		635
593	New(54,PL_savestack,24,ANY);	636	New(54,PL_savestack,24,ANY);
594	PL_savestack_ix = 0;	637	PL_savestack_ix = 0;
595	PL_savestack_max = 24;	638	PL_savestack_max = 24;
596		639
597	#if !PERL_VERSION_ATLEAST (5,9,0)	640	#if !PERL_VERSION_ATLEAST (5,10,0)
598	New(54,PL_retstack,4,OP*);	641	New(54,PL_retstack,4,OP*);
599	PL_retstack_ix = 0;	642	PL_retstack_ix = 0;
600	PL_retstack_max = 4;	643	PL_retstack_max = 4;
601	#endif	644	#endif
602	}	645	}
…		…
604		647
605	/*	648	/*
606	* destroy the stacks, the callchain etc...	649	* destroy the stacks, the callchain etc...
607	*/	650	*/
608	static void	651	static void
609	coro_destroy_stacks (pTHX)	652	coro_destruct_stacks (pTHX)
610	{	653	{
611	while (PL_curstackinfo->si_next)	654	while (PL_curstackinfo->si_next)
612	PL_curstackinfo = PL_curstackinfo->si_next;	655	PL_curstackinfo = PL_curstackinfo->si_next;
613		656
614	while (PL_curstackinfo)	657	while (PL_curstackinfo)
…		…
625		668
626	Safefree (PL_tmps_stack);	669	Safefree (PL_tmps_stack);
627	Safefree (PL_markstack);	670	Safefree (PL_markstack);
628	Safefree (PL_scopestack);	671	Safefree (PL_scopestack);
629	Safefree (PL_savestack);	672	Safefree (PL_savestack);
630	#if !PERL_VERSION_ATLEAST (5,9,0)	673	#if !PERL_VERSION_ATLEAST (5,10,0)
631	Safefree (PL_retstack);	674	Safefree (PL_retstack);
632	#endif	675	#endif
633	}	676	}
634		677
635	static size_t	678	static size_t
…		…
651	#undef VAR	694	#undef VAR
652	}	695	}
653	else	696	else
654	slot = coro->slot;	697	slot = coro->slot;
655		698
		699	if (slot)
		700	{
656	rss += sizeof (slot->curstackinfo);	701	rss += sizeof (slot->curstackinfo);
657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
659	rss += slot->tmps_max * sizeof (SV *);	704	rss += slot->tmps_max * sizeof (SV *);
660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	705	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661	rss += slot->scopestack_max * sizeof (I32);	706	rss += slot->scopestack_max * sizeof (I32);
662	rss += slot->savestack_max * sizeof (ANY);	707	rss += slot->savestack_max * sizeof (ANY);
663		708
664	#if !PERL_VERSION_ATLEAST (5,9,0)	709	#if !PERL_VERSION_ATLEAST (5,10,0)
665	rss += slot->retstack_max * sizeof (OP *);	710	rss += slot->retstack_max * sizeof (OP *);
666	#endif	711	#endif
		712	}
667	}	713	}
668		714
669	return rss;	715	return rss;
670	}	716	}
671		717
672	/ coroutine stack handling **********************************************/	718	/ coroutine stack handling **********************************************/
673		719
674	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);	720	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
675	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);	721	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		722	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		723
		724	/* apparently < 5.8.8 */
		725	#ifndef MgPV_nolen_const
		726	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		727	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		728	(const char*)(mg)->mg_ptr)
		729	#endif
		730
		731	/* we sometimes need to create the effect of entersub calling us */
		732	#define ENTERSUB_HEAD ENTER; SAVETMPS
		733	/* we somtimes need to create the effect of leaving via entersub */
		734	#define ENTERSUB_TAIL LEAVE
676		735
677	/*	736	/*
678	* This overrides the default magic get method of %SIG elements.	737	* This overrides the default magic get method of %SIG elements.
679	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	738	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
680	* and instead of tryign to save and restore the hash elements, we just provide	739	* and instead of tryign to save and restore the hash elements, we just provide
…		…
688	{	747	{
689	const char *s = MgPV_nolen_const (mg);	748	const char *s = MgPV_nolen_const (mg);
690		749
691	if (*s == '_')	750	if (*s == '_')
692	{	751	{
693	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;	752	SV **svp = 0;
694	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;	753
		754	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		755	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		756
		757	if (svp)
		758	{
		759	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		760	return 0;
		761	}
695	}	762	}
696		763
697	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;	764	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		765	}
		766
		767	static int
		768	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		769	{
		770	const char *s = MgPV_nolen_const (mg);
		771
		772	if (*s == '_')
		773	{
		774	SV **svp = 0;
		775
		776	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		777	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		778
		779	if (svp)
		780	{
		781	SV old = svp;
		782	*svp = 0;
		783	SvREFCNT_dec (old);
		784	return 0;
		785	}
		786	}
		787
		788	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
698	}	789	}
699		790
700	static int	791	static int
701	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)	792	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
702	{	793	{
…		…
712	if (svp)	803	if (svp)
713	{	804	{
714	SV old = svp;	805	SV old = svp;
715	*svp = newSVsv (sv);	806	*svp = newSVsv (sv);
716	SvREFCNT_dec (old);	807	SvREFCNT_dec (old);
717	return;	808	return 0;
718	}	809	}
719	}	810	}
720		811
721	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;	812	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
722	}	813	}
…		…
736	PL_curpm = 0;	827	PL_curpm = 0;
737	PL_curpad = 0;	828	PL_curpad = 0;
738	PL_localizing = 0;	829	PL_localizing = 0;
739	PL_dirty = 0;	830	PL_dirty = 0;
740	PL_restartop = 0;	831	PL_restartop = 0;
		832	#if PERL_VERSION_ATLEAST (5,10,0)
		833	PL_parser = 0;
		834	#endif
741		835
742	/* recreate the die/warn hooks */	836	/* recreate the die/warn hooks */
743	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	837	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
744	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	838	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
745		839
746	GvSV (PL_defgv) = newSV (0);	840	GvSV (PL_defgv) = newSV (0);
747	GvAV (PL_defgv) = coro->args; coro->args = 0;	841	GvAV (PL_defgv) = coro->args; coro->args = 0;
748	GvSV (PL_errgv) = newSV (0);	842	GvSV (PL_errgv) = newSV (0);
749	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	843	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
750	PL_rs = newSVsv (GvSV (irsgv));	844	PL_rs = newSVsv (GvSV (irsgv));
751	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	845	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
752		846
753	{	847	{
754	dSP;	848	dSP;
755	LOGOP myop;	849	UNOP myop;
756		850
757	Zero (&myop, 1, LOGOP);	851	Zero (&myop, 1, UNOP);
758	myop.op_next = Nullop;	852	myop.op_next = Nullop;
759	myop.op_flags = OPf_WANT_VOID;	853	myop.op_flags = OPf_WANT_VOID;
760		854
761	PUSHMARK (SP);	855	PUSHMARK (SP);
762	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	856	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
766	SPAGAIN;	860	SPAGAIN;
767	}	861	}
768		862
769	/* this newly created coroutine might be run on an existing cctx which most	863	/* this newly created coroutine might be run on an existing cctx which most
770	* likely was suspended in set_stacklevel, called from entersub.	864	* likely was suspended in set_stacklevel, called from entersub.
771	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,	865	* set_stacklevel doesn't do anything on return, but entersub does LEAVE,
772	* so we ENTER here for symmetry	866	* so we ENTER here for symmetry.
773	*/	867	*/
774	ENTER;	868	ENTERSUB_HEAD;
775	}	869	}
776		870
777	static void	871	static void
778	coro_destroy (pTHX_ struct coro *coro)	872	coro_destruct (pTHX_ struct coro *coro)
779	{	873	{
780	if (!IN_DESTRUCT)	874	if (!IN_DESTRUCT)
781	{	875	{
782	/* restore all saved variables and stuff */	876	/* restore all saved variables and stuff */
783	LEAVE_SCOPE (0);	877	LEAVE_SCOPE (0);
…		…
805	SvREFCNT_dec (PL_warnhook);	899	SvREFCNT_dec (PL_warnhook);
806		900
807	SvREFCNT_dec (coro->saved_deffh);	901	SvREFCNT_dec (coro->saved_deffh);
808	SvREFCNT_dec (coro->throw);	902	SvREFCNT_dec (coro->throw);
809		903
810	coro_destroy_stacks (aTHX);	904	coro_destruct_stacks (aTHX);
811	}	905	}
812		906
813	static void	907	INLINE void
814	free_coro_mortal (pTHX)	908	free_coro_mortal (pTHX)
815	{	909	{
816	if (expect_true (coro_mortal))	910	if (expect_true (coro_mortal))
817	{	911	{
818	SvREFCNT_dec (coro_mortal);	912	SvREFCNT_dec (coro_mortal);
…		…
852	: cx->blk_gimme == G_SCALAR ? bot + 1	946	: cx->blk_gimme == G_SCALAR ? bot + 1
853	: bot;	947	: bot;
854		948
855	av_extend (av, top - bot);	949	av_extend (av, top - bot);
856	while (bot < top)	950	while (bot < top)
857	av_push (av, SvREFCNT_inc (*bot++));	951	av_push (av, SvREFCNT_inc_NN (*bot++));
858		952
859	PL_runops = RUNOPS_DEFAULT;	953	PL_runops = RUNOPS_DEFAULT;
860	ENTER;	954	ENTER;
861	SAVETMPS;	955	SAVETMPS;
862	EXTEND (SP, 3);	956	EXTEND (SP, 3);
…		…
942		1036
943	TAINT_NOT;	1037	TAINT_NOT;
944	return 0;	1038	return 0;
945	}	1039	}
946		1040
		1041	static void
		1042	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1043	{
		1044	ta->prev = (struct coro *)cctx;
		1045	ta->next = 0;
		1046	}
		1047
947	/* inject a fake call to Coro::State::_cctx_init into the execution */	1048	/* inject a fake call to Coro::State::_cctx_init into the execution */
948	/* _cctx_init should be careful, as it could be called at almost any time */	1049	/* _cctx_init should be careful, as it could be called at almost any time */
949	/* during execution of a perl program */	1050	/* during execution of a perl program */
		1051	/* also initialises PL_top_env */
950	static void NOINLINE	1052	static void NOINLINE
951	cctx_prepare (pTHX_ coro_cctx *cctx)	1053	cctx_prepare (pTHX_ coro_cctx *cctx)
952	{	1054	{
953	dSP;	1055	dSP;
954	LOGOP myop;	1056	UNOP myop;
955		1057
956	PL_top_env = &PL_start_env;	1058	PL_top_env = &PL_start_env;
957		1059
958	if (cctx->flags & CC_TRACE)	1060	if (cctx->flags & CC_TRACE)
959	PL_runops = runops_trace;	1061	PL_runops = runops_trace;
960		1062
961	Zero (&myop, 1, LOGOP);	1063	Zero (&myop, 1, UNOP);
962	myop.op_next = PL_op;	1064	myop.op_next = PL_op;
963	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1065	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
964		1066
965	PUSHMARK (SP);	1067	PUSHMARK (SP);
966	EXTEND (SP, 2);	1068	EXTEND (SP, 2);
967	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1069	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
968	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1070	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
969	PUTBACK;	1071	PUTBACK;
970	PL_op = (OP *)&myop;	1072	PL_op = (OP *)&myop;
971	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1073	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
972	SPAGAIN;	1074	SPAGAIN;
973	}	1075	}
974		1076
		1077	/* the tail of transfer: execute stuff we can only do after a transfer */
		1078	INLINE void
		1079	transfer_tail (pTHX)
		1080	{
		1081	struct coro next = (struct coro )transfer_next;
		1082	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1083	assert (("FATAL: transfer_next was zero in transfer_tail (please report)", next));
		1084
		1085	free_coro_mortal (aTHX);
		1086	UNLOCK;
		1087
		1088	if (expect_false (next->throw))
		1089	{
		1090	SV *exception = sv_2mortal (next->throw);
		1091
		1092	next->throw = 0;
		1093	sv_setsv (ERRSV, exception);
		1094	croak (0);
		1095	}
		1096	}
		1097
975	/*	1098	/*
976	* this is a _very_ stripped down perl interpreter ;)	1099	* this is a _very_ stripped down perl interpreter ;)
977	*/	1100	*/
978	static void	1101	static void
979	cctx_run (void *arg)	1102	cctx_run (void *arg)
980	{	1103	{
		1104	#ifdef USE_ITHREADS
		1105	# if CORO_PTHREAD
		1106	PERL_SET_CONTEXT (coro_thx);
		1107	# endif
		1108	#endif
		1109	{
981	dTHX;	1110	dTHX;
982		1111
983	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1112	/* entersub called ENTER, but we never 'returned', undo that here */
984	UNLOCK;	1113	ENTERSUB_TAIL;
985		1114
986	/* we now skip the entersub that lead to transfer() */	1115	/* we now skip the entersub that did lead to transfer() */
987	PL_op = PL_op->op_next;	1116	PL_op = PL_op->op_next;
988		1117
989	/* inject a fake subroutine call to cctx_init */	1118	/* inject a fake subroutine call to cctx_init */
990	cctx_prepare (aTHX_ (coro_cctx *)arg);	1119	cctx_prepare (aTHX_ (coro_cctx *)arg);
991		1120
		1121	/* cctx_run is the alternative tail of transfer() */
		1122	transfer_tail (aTHX);
		1123
992	/* somebody or something will hit me for both perl_run and PL_restartop */	1124	/* somebody or something will hit me for both perl_run and PL_restartop */
993	PL_restartop = PL_op;	1125	PL_restartop = PL_op;
994	perl_run (PL_curinterp);	1126	perl_run (PL_curinterp);
995		1127
996	/*	1128	/*
997	* If perl-run returns we assume exit() was being called or the coro	1129	* If perl-run returns we assume exit() was being called or the coro
998	* fell off the end, which seems to be the only valid (non-bug)	1130	* fell off the end, which seems to be the only valid (non-bug)
999	* reason for perl_run to return. We try to exit by jumping to the	1131	* reason for perl_run to return. We try to exit by jumping to the
1000	* bootstrap-time "top" top_env, as we cannot restore the "main"	1132	* bootstrap-time "top" top_env, as we cannot restore the "main"
1001	* coroutine as Coro has no such concept	1133	* coroutine as Coro has no such concept
1002	*/	1134	*/
1003	PL_top_env = main_top_env;	1135	PL_top_env = main_top_env;
1004	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1136	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1137	}
1005	}	1138	}
1006		1139
1007	static coro_cctx *	1140	static coro_cctx *
1008	cctx_new ()	1141	cctx_new ()
1009	{	1142	{
1010	coro_cctx *cctx;	1143	coro_cctx *cctx;
		1144
		1145	++cctx_count;
		1146	New (0, cctx, 1, coro_cctx);
		1147
		1148	cctx->gen = cctx_gen;
		1149	cctx->flags = 0;
		1150	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1151
		1152	return cctx;
		1153	}
		1154
		1155	/* create a new cctx only suitable as source */
		1156	static coro_cctx *
		1157	cctx_new_empty ()
		1158	{
		1159	coro_cctx *cctx = cctx_new ();
		1160
		1161	cctx->sptr = 0;
		1162	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1163
		1164	return cctx;
		1165	}
		1166
		1167	/* create a new cctx suitable as destination/running a perl interpreter */
		1168	static coro_cctx *
		1169	cctx_new_run ()
		1170	{
		1171	coro_cctx *cctx = cctx_new ();
1011	void *stack_start;	1172	void *stack_start;
1012	size_t stack_size;	1173	size_t stack_size;
1013		1174
1014	++cctx_count;
1015
1016	Newz (0, cctx, 1, coro_cctx);
1017
1018	#if HAVE_MMAP	1175	#if HAVE_MMAP
1019	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1176	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1020	/* mmap supposedly does allocate-on-write for us */	1177	/* mmap supposedly does allocate-on-write for us */
1021	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1178	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
1022		1179
1023	if (cctx->sptr != (void *)-1)	1180	if (cctx->sptr != (void *)-1)
1024	{	1181	{
1025	# if CORO_STACKGUARD	1182	#if CORO_STACKGUARD
1026	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1183	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1027	# endif	1184	#endif
1028	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1185	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
1029	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1186	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1030	cctx->flags \|= CC_MAPPED;	1187	cctx->flags \|= CC_MAPPED;
1031	}	1188	}
1032	else	1189	else
1033	#endif	1190	#endif
1034	{	1191	{
1035	cctx->ssize = coro_stacksize * (long)sizeof (long);	1192	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1036	New (0, cctx->sptr, coro_stacksize, long);	1193	New (0, cctx->sptr, cctx_stacksize, long);
1037		1194
1038	if (!cctx->sptr)	1195	if (!cctx->sptr)
1039	{	1196	{
1040	perror ("FATAL: unable to allocate stack for coroutine");	1197	perror ("FATAL: unable to allocate stack for coroutine");
1041	_exit (EXIT_FAILURE);	1198	_exit (EXIT_FAILURE);
…		…
1043		1200
1044	stack_start = cctx->sptr;	1201	stack_start = cctx->sptr;
1045	stack_size = cctx->ssize;	1202	stack_size = cctx->ssize;
1046	}	1203	}
1047		1204
1048	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1205	#if CORO_USE_VALGRIND
		1206	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1207	#endif
		1208
1049	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1209	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1050		1210
1051	return cctx;	1211	return cctx;
1052	}	1212	}
1053		1213
…		…
1056	{	1216	{
1057	if (!cctx)	1217	if (!cctx)
1058	return;	1218	return;
1059		1219
1060	--cctx_count;	1220	--cctx_count;
		1221	coro_destroy (&cctx->cctx);
1061		1222
		1223	/* coro_transfer creates new, empty cctx's */
		1224	if (cctx->sptr)
		1225	{
1062	#if CORO_USE_VALGRIND	1226	#if CORO_USE_VALGRIND
1063	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1227	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1064	#endif	1228	#endif
1065		1229
1066	#if HAVE_MMAP	1230	#if HAVE_MMAP
1067	if (cctx->flags & CC_MAPPED)	1231	if (cctx->flags & CC_MAPPED)
1068	munmap (cctx->sptr, cctx->ssize);	1232	munmap (cctx->sptr, cctx->ssize);
1069	else	1233	else
1070	#endif	1234	#endif
1071	Safefree (cctx->sptr);	1235	Safefree (cctx->sptr);
		1236	}
1072		1237
1073	Safefree (cctx);	1238	Safefree (cctx);
1074	}	1239	}
1075		1240
1076	/* wether this cctx should be destructed */	1241	/* wether this cctx should be destructed */
1077	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1242	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1078		1243
1079	static coro_cctx *	1244	static coro_cctx *
1080	cctx_get (pTHX)	1245	cctx_get (pTHX)
1081	{	1246	{
1082	while (expect_true (cctx_first))	1247	while (expect_true (cctx_first))
…		…
1089	return cctx;	1254	return cctx;
1090		1255
1091	cctx_destroy (cctx);	1256	cctx_destroy (cctx);
1092	}	1257	}
1093		1258
1094	return cctx_new ();	1259	return cctx_new_run ();
1095	}	1260	}
1096		1261
1097	static void	1262	static void
1098	cctx_put (coro_cctx *cctx)	1263	cctx_put (coro_cctx *cctx)
1099	{	1264	{
		1265	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1266
1100	/* free another cctx if overlimit */	1267	/* free another cctx if overlimit */
1101	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1268	if (expect_false (cctx_idle >= cctx_max_idle))
1102	{	1269	{
1103	coro_cctx *first = cctx_first;	1270	coro_cctx *first = cctx_first;
1104	cctx_first = first->next;	1271	cctx_first = first->next;
1105	--cctx_idle;	1272	--cctx_idle;
1106		1273
…		…
1126	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1293	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1127		1294
1128	if (expect_false (next->flags & CF_DESTROYED))	1295	if (expect_false (next->flags & CF_DESTROYED))
1129	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1296	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1130		1297
1131	if (
1132	#if PERL_VERSION_ATLEAST (5,9,0)	1298	#if !PERL_VERSION_ATLEAST (5,10,0)
1133	expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
1134	#else
1135	expect_false (PL_lex_state != LEX_NOTPARSING)	1299	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1136	#endif
1137	)
1138	croak ("Coro::State::transfer called while parsing, but this is not supported");	1300	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1301	#endif
1139	}	1302	}
1140	}	1303	}
1141		1304
1142	/* always use the TRANSFER macro */	1305	/* always use the TRANSFER macro */
1143	static void NOINLINE	1306	static void NOINLINE
1144	transfer (pTHX_ struct coro prev, struct coro next)	1307	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1145	{	1308	{
1146	dSTACKLEVEL;	1309	dSTACKLEVEL;
1147	static volatile int has_throw;
1148		1310
1149	/* sometimes transfer is only called to set idle_sp */	1311	/* sometimes transfer is only called to set idle_sp */
1150	if (expect_false (!next))	1312	if (expect_false (!next))
1151	{	1313	{
1152	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1314	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1156	{	1318	{
1157	coro_cctx *prev__cctx;	1319	coro_cctx *prev__cctx;
1158		1320
1159	if (expect_false (prev->flags & CF_NEW))	1321	if (expect_false (prev->flags & CF_NEW))
1160	{	1322	{
1161	/* create a new empty context */	1323	/* create a new empty/source context */
1162	Newz (0, prev->cctx, 1, coro_cctx);	1324	prev->cctx = cctx_new_empty ();
1163	prev->flags &= ~CF_NEW;	1325	prev->flags &= ~CF_NEW;
1164	prev->flags \|= CF_RUNNING;	1326	prev->flags \|= CF_RUNNING;
1165	}	1327	}
1166		1328
1167	prev->flags &= ~CF_RUNNING;	1329	prev->flags &= ~CF_RUNNING;
…		…
1182	else	1344	else
1183	load_perl (aTHX_ next);	1345	load_perl (aTHX_ next);
1184		1346
1185	prev__cctx = prev->cctx;	1347	prev__cctx = prev->cctx;
1186		1348
1187	/* possibly "free" the cctx */	1349	/* possibly untie and reuse the cctx */
1188	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1350	if (expect_true (
		1351	prev__cctx->idle_sp == STACKLEVEL
		1352	&& !(prev__cctx->flags & CC_TRACE)
		1353	&& !force_cctx
		1354	))
1189	{	1355	{
1190	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1356	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1191	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1357	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1192		1358
1193	prev->cctx = 0;	1359	prev->cctx = 0;
1194		1360
1195	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1361	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1196	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1362	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1204	++next->usecount;	1370	++next->usecount;
1205		1371
1206	if (expect_true (!next->cctx))	1372	if (expect_true (!next->cctx))
1207	next->cctx = cctx_get (aTHX);	1373	next->cctx = cctx_get (aTHX);
1208		1374
1209	has_throw = !!next->throw;	1375	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1376	transfer_next = next;
1210		1377
1211	if (expect_false (prev__cctx != next->cctx))	1378	if (expect_false (prev__cctx != next->cctx))
1212	{	1379	{
1213	prev__cctx->top_env = PL_top_env;	1380	prev__cctx->top_env = PL_top_env;
1214	PL_top_env = next->cctx->top_env;	1381	PL_top_env = next->cctx->top_env;
1215	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1382	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1216	}	1383	}
1217		1384
1218	free_coro_mortal (aTHX);	1385	transfer_tail (aTHX);
1219	UNLOCK;
1220
1221	if (expect_false (has_throw))
1222	{
1223	struct coro *coro = SvSTATE (coro_current);
1224
1225	if (coro->throw)
1226	{
1227	SV *exception = coro->throw;
1228	coro->throw = 0;
1229	sv_setsv (ERRSV, exception);
1230	croak (0);
1231	}
1232	}
1233	}	1386	}
1234	}	1387	}
1235		1388
1236	struct transfer_args
1237	{
1238	struct coro prev, next;
1239	};
1240
1241	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1389	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1242	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1390	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1243		1391
1244	/ high level stuff ******************************************************/	1392	/ high level stuff ******************************************************/
1245		1393
1246	static int	1394	static int
…		…
1270	croak ("FATAL: tried to destroy currently running coroutine");	1418	croak ("FATAL: tried to destroy currently running coroutine");
1271		1419
1272	save_perl (aTHX_ &temp);	1420	save_perl (aTHX_ &temp);
1273	load_perl (aTHX_ coro);	1421	load_perl (aTHX_ coro);
1274		1422
1275	coro_destroy (aTHX_ coro);	1423	coro_destruct (aTHX_ coro);
1276		1424
1277	load_perl (aTHX_ &temp);	1425	load_perl (aTHX_ &temp);
1278		1426
1279	coro->slot = 0;	1427	coro->slot = 0;
1280	}	1428	}
…		…
1340	{	1488	{
1341	dTHX;	1489	dTHX;
1342	struct transfer_args ta;	1490	struct transfer_args ta;
1343		1491
1344	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1492	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1345	TRANSFER (ta);	1493	TRANSFER (ta, 1);
1346	}	1494	}
1347		1495
1348	/ Coro ******************************************************************/	1496	/ Coro ******************************************************************/
1349		1497
1350	static void	1498	static void
…		…
1368	static int	1516	static int
1369	api_ready (SV *coro_sv)	1517	api_ready (SV *coro_sv)
1370	{	1518	{
1371	dTHX;	1519	dTHX;
1372	struct coro *coro;	1520	struct coro *coro;
		1521	SV *sv_hook;
		1522	void (*xs_hook)(void);
1373		1523
1374	if (SvROK (coro_sv))	1524	if (SvROK (coro_sv))
1375	coro_sv = SvRV (coro_sv);	1525	coro_sv = SvRV (coro_sv);
1376		1526
1377	coro = SvSTATE (coro_sv);	1527	coro = SvSTATE (coro_sv);
…		…
1380	return 0;	1530	return 0;
1381		1531
1382	coro->flags \|= CF_READY;	1532	coro->flags \|= CF_READY;
1383		1533
1384	LOCK;	1534	LOCK;
		1535
		1536	sv_hook = coro_nready ? 0 : coro_readyhook;
		1537	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1538
1385	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1539	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1386	++coro_nready;	1540	++coro_nready;
		1541
1387	UNLOCK;	1542	UNLOCK;
		1543
		1544	if (sv_hook)
		1545	{
		1546	dSP;
		1547
		1548	ENTER;
		1549	SAVETMPS;
		1550
		1551	PUSHMARK (SP);
		1552	PUTBACK;
		1553	call_sv (sv_hook, G_DISCARD);
		1554	SPAGAIN;
		1555
		1556	FREETMPS;
		1557	LEAVE;
		1558	}
		1559
		1560	if (xs_hook)
		1561	xs_hook ();
1388		1562
1389	return 1;	1563	return 1;
1390	}	1564	}
1391		1565
1392	static int	1566	static int
1393	api_is_ready (SV *coro_sv)	1567	api_is_ready (SV *coro_sv)
1394	{	1568	{
1395	dTHX;	1569	dTHX;
		1570
1396	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1571	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1397	}	1572	}
1398		1573
1399	static void	1574	INLINE void
1400	prepare_schedule (pTHX_ struct transfer_args *ta)	1575	prepare_schedule (pTHX_ struct transfer_args *ta)
1401	{	1576	{
1402	SV prev_sv, next_sv;	1577	SV prev_sv, next_sv;
1403		1578
1404	for (;;)	1579	for (;;)
…		…
1430	/* cannot transfer to destroyed coros, skip and look for next */	1605	/* cannot transfer to destroyed coros, skip and look for next */
1431	if (expect_false (ta->next->flags & CF_DESTROYED))	1606	if (expect_false (ta->next->flags & CF_DESTROYED))
1432	{	1607	{
1433	UNLOCK;	1608	UNLOCK;
1434	SvREFCNT_dec (next_sv);	1609	SvREFCNT_dec (next_sv);
1435	/* coro_nready is already taken care of by destroy */	1610	/* coro_nready has already been taken care of by destroy */
1436	continue;	1611	continue;
1437	}	1612	}
1438		1613
1439	--coro_nready;	1614	--coro_nready;
1440	UNLOCK;	1615	UNLOCK;
…		…
1443		1618
1444	/* free this only after the transfer */	1619	/* free this only after the transfer */
1445	prev_sv = SvRV (coro_current);	1620	prev_sv = SvRV (coro_current);
1446	ta->prev = SvSTATE (prev_sv);	1621	ta->prev = SvSTATE (prev_sv);
1447	TRANSFER_CHECK (*ta);	1622	TRANSFER_CHECK (*ta);
1448	assert (ta->next->flags & CF_READY);	1623	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1449	ta->next->flags &= ~CF_READY;	1624	ta->next->flags &= ~CF_READY;
1450	SvRV_set (coro_current, next_sv);	1625	SvRV_set (coro_current, next_sv);
1451		1626
1452	LOCK;	1627	LOCK;
1453	free_coro_mortal (aTHX);	1628	free_coro_mortal (aTHX);
1454	coro_mortal = prev_sv;	1629	coro_mortal = prev_sv;
1455	UNLOCK;	1630	UNLOCK;
1456	}	1631	}
1457		1632
1458	static void	1633	INLINE void
1459	prepare_cede (pTHX_ struct transfer_args *ta)	1634	prepare_cede (pTHX_ struct transfer_args *ta)
1460	{	1635	{
1461	api_ready (coro_current);	1636	api_ready (coro_current);
1462	prepare_schedule (aTHX_ ta);	1637	prepare_schedule (aTHX_ ta);
1463	}	1638	}
…		…
1481	{	1656	{
1482	dTHX;	1657	dTHX;
1483	struct transfer_args ta;	1658	struct transfer_args ta;
1484		1659
1485	prepare_schedule (aTHX_ &ta);	1660	prepare_schedule (aTHX_ &ta);
1486	TRANSFER (ta);	1661	TRANSFER (ta, 1);
1487	}	1662	}
1488		1663
1489	static int	1664	static int
1490	api_cede (void)	1665	api_cede (void)
1491	{	1666	{
…		…
1494		1669
1495	prepare_cede (aTHX_ &ta);	1670	prepare_cede (aTHX_ &ta);
1496		1671
1497	if (expect_true (ta.prev != ta.next))	1672	if (expect_true (ta.prev != ta.next))
1498	{	1673	{
1499	TRANSFER (ta);	1674	TRANSFER (ta, 1);
1500	return 1;	1675	return 1;
1501	}	1676	}
1502	else	1677	else
1503	return 0;	1678	return 0;
1504	}	1679	}
…		…
1509	dTHX;	1684	dTHX;
1510	struct transfer_args ta;	1685	struct transfer_args ta;
1511		1686
1512	if (prepare_cede_notself (aTHX_ &ta))	1687	if (prepare_cede_notself (aTHX_ &ta))
1513	{	1688	{
1514	TRANSFER (ta);	1689	TRANSFER (ta, 1);
1515	return 1;	1690	return 1;
1516	}	1691	}
1517	else	1692	else
1518	return 0;	1693	return 0;
1519	}	1694	}
…		…
1525	struct coro *coro = SvSTATE (coro_sv);	1700	struct coro *coro = SvSTATE (coro_sv);
1526		1701
1527	if (flags & CC_TRACE)	1702	if (flags & CC_TRACE)
1528	{	1703	{
1529	if (!coro->cctx)	1704	if (!coro->cctx)
1530	coro->cctx = cctx_new ();	1705	coro->cctx = cctx_new_run ();
1531	else if (!(coro->cctx->flags & CC_TRACE))	1706	else if (!(coro->cctx->flags & CC_TRACE))
1532	croak ("cannot enable tracing on coroutine with custom stack");	1707	croak ("cannot enable tracing on coroutine with custom stack");
1533		1708
1534	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1709	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1535	}	1710	}
…		…
1542	else	1717	else
1543	coro->slot->runops = RUNOPS_DEFAULT;	1718	coro->slot->runops = RUNOPS_DEFAULT;
1544	}	1719	}
1545	}	1720	}
1546		1721
		1722	#if 0
		1723	static int
		1724	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1725	{
		1726	AV *padlist;
		1727	AV av = (AV )mg->mg_obj;
		1728
		1729	abort ();
		1730
		1731	return 0;
		1732	}
		1733
		1734	static MGVTBL coro_gensub_vtbl = {
		1735	0, 0, 0, 0,
		1736	coro_gensub_free
		1737	};
		1738	#endif
		1739
		1740	/*****************************************************************************/
		1741	/* PerlIO::cede */
		1742
		1743	typedef struct
		1744	{
		1745	PerlIOBuf base;
		1746	NV next, every;
		1747	} PerlIOCede;
		1748
		1749	static IV
		1750	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1751	{
		1752	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1753
		1754	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1755	self->next = nvtime () + self->every;
		1756
		1757	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1758	}
		1759
		1760	static SV *
		1761	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1762	{
		1763	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1764
		1765	return newSVnv (self->every);
		1766	}
		1767
		1768	static IV
		1769	PerlIOCede_flush (pTHX_ PerlIO *f)
		1770	{
		1771	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1772	double now = nvtime ();
		1773
		1774	if (now >= self->next)
		1775	{
		1776	api_cede ();
		1777	self->next = now + self->every;
		1778	}
		1779
		1780	return PerlIOBuf_flush (aTHX_ f);
		1781	}
		1782
		1783	static PerlIO_funcs PerlIO_cede =
		1784	{
		1785	sizeof(PerlIO_funcs),
		1786	"cede",
		1787	sizeof(PerlIOCede),
		1788	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1789	PerlIOCede_pushed,
		1790	PerlIOBuf_popped,
		1791	PerlIOBuf_open,
		1792	PerlIOBase_binmode,
		1793	PerlIOCede_getarg,
		1794	PerlIOBase_fileno,
		1795	PerlIOBuf_dup,
		1796	PerlIOBuf_read,
		1797	PerlIOBuf_unread,
		1798	PerlIOBuf_write,
		1799	PerlIOBuf_seek,
		1800	PerlIOBuf_tell,
		1801	PerlIOBuf_close,
		1802	PerlIOCede_flush,
		1803	PerlIOBuf_fill,
		1804	PerlIOBase_eof,
		1805	PerlIOBase_error,
		1806	PerlIOBase_clearerr,
		1807	PerlIOBase_setlinebuf,
		1808	PerlIOBuf_get_base,
		1809	PerlIOBuf_bufsiz,
		1810	PerlIOBuf_get_ptr,
		1811	PerlIOBuf_get_cnt,
		1812	PerlIOBuf_set_ptrcnt,
		1813	};
		1814
		1815
1547	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1816	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1548		1817
1549	PROTOTYPES: DISABLE	1818	PROTOTYPES: DISABLE
1550		1819
1551	BOOT:	1820	BOOT:
1552	{	1821	{
1553	#ifdef USE_ITHREADS	1822	#ifdef USE_ITHREADS
1554	MUTEX_INIT (&coro_mutex);	1823	MUTEX_INIT (&coro_lock);
		1824	# if CORO_PTHREAD
		1825	coro_thx = PERL_GET_CONTEXT;
		1826	# endif
1555	#endif	1827	#endif
1556	BOOT_PAGESIZE;	1828	BOOT_PAGESIZE;
1557		1829
1558	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1830	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1559	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1831	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1560		1832
1561	orig_sigelem_get = PL_vtbl_sigelem.svt_get;	1833	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1562	PL_vtbl_sigelem.svt_get = coro_sigelem_get;	1834	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1563	orig_sigelem_set = PL_vtbl_sigelem.svt_set;	1835	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1564	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1565		1836
1566	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);	1837	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1567	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	1838	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1568	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));	1839	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1569		1840
…		…
1578	main_top_env = PL_top_env;	1849	main_top_env = PL_top_env;
1579		1850
1580	while (main_top_env->je_prev)	1851	while (main_top_env->je_prev)
1581	main_top_env = main_top_env->je_prev;	1852	main_top_env = main_top_env->je_prev;
1582		1853
1583	coroapi.ver = CORO_API_VERSION;	1854	coroapi.ver = CORO_API_VERSION;
1584	coroapi.rev = CORO_API_REVISION;	1855	coroapi.rev = CORO_API_REVISION;
1585	coroapi.transfer = api_transfer;	1856	coroapi.transfer = api_transfer;
		1857
		1858	{
		1859	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1860
		1861	if (!svp) croak ("Time::HiRes is required");
		1862	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1863
		1864	nvtime = INT2PTR (double ()(), SvIV (svp));
		1865	}
1586		1866
1587	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1867	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1588	}	1868	}
1589		1869
1590	SV *	1870	SV *
…		…
1632		1912
1633	PUTBACK;	1913	PUTBACK;
1634	switch (ix)	1914	switch (ix)
1635	{	1915	{
1636	case 0:	1916	case 0:
1637	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1917	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0)));
1638	ta.next = 0;
1639	break;	1918	break;
1640		1919
1641	case 1:	1920	case 1:
1642	if (items != 2)	1921	if (items != 2)
1643	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1922	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1644		1923
1645	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1924	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1646	break;	1925	break;
1647		1926
1648	case 2:	1927	case 2:
…		…
1661	}	1940	}
1662	SPAGAIN;	1941	SPAGAIN;
1663		1942
1664	BARRIER;	1943	BARRIER;
1665	PUTBACK;	1944	PUTBACK;
1666	TRANSFER (ta);	1945	TRANSFER (ta, 0);
1667	SPAGAIN; /* might be the sp of a different coroutine now */	1946	SPAGAIN; /* might be the sp of a different coroutine now */
1668	/* be extra careful not to ever do anything after TRANSFER */	1947	/* be extra careful not to ever do anything after TRANSFER */
1669	}	1948	}
1670		1949
1671	bool	1950	bool
…		…
1674	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1953	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1675	OUTPUT:	1954	OUTPUT:
1676	RETVAL	1955	RETVAL
1677		1956
1678	void	1957	void
1679	_exit (code)	1958	_exit (int code)
1680	int code
1681	PROTOTYPE: $	1959	PROTOTYPE: $
1682	CODE:	1960	CODE:
1683	_exit (code);	1961	_exit (code);
1684		1962
1685	int	1963	int
1686	cctx_stacksize (int new_stacksize = 0)	1964	cctx_stacksize (int new_stacksize = 0)
1687	CODE:	1965	CODE:
1688	RETVAL = coro_stacksize;	1966	RETVAL = cctx_stacksize;
1689	if (new_stacksize)	1967	if (new_stacksize)
		1968	{
1690	coro_stacksize = new_stacksize;	1969	cctx_stacksize = new_stacksize;
		1970	++cctx_gen;
		1971	}
		1972	OUTPUT:
		1973	RETVAL
		1974
		1975	int
		1976	cctx_max_idle (int max_idle = 0)
		1977	CODE:
		1978	RETVAL = cctx_max_idle;
		1979	if (max_idle > 1)
		1980	cctx_max_idle = max_idle;
1691	OUTPUT:	1981	OUTPUT:
1692	RETVAL	1982	RETVAL
1693		1983
1694	int	1984	int
1695	cctx_count ()	1985	cctx_count ()
…		…
1719	call (Coro::State coro, SV *coderef)	2009	call (Coro::State coro, SV *coderef)
1720	ALIAS:	2010	ALIAS:
1721	eval = 1	2011	eval = 1
1722	CODE:	2012	CODE:
1723	{	2013	{
1724	if (coro->mainstack)	2014	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1725	{	2015	{
1726	struct coro temp;	2016	struct coro temp;
1727		2017
1728	if (!(coro->flags & CF_RUNNING))	2018	if (!(coro->flags & CF_RUNNING))
1729	{	2019	{
…		…
1773	RETVAL = boolSV (coro->flags & ix);	2063	RETVAL = boolSV (coro->flags & ix);
1774	OUTPUT:	2064	OUTPUT:
1775	RETVAL	2065	RETVAL
1776		2066
1777	void	2067	void
		2068	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2069	PROTOTYPE: $;$
		2070	CODE:
		2071	SvREFCNT_dec (self->throw);
		2072	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2073
		2074	void
1778	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2075	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1779		2076
1780	SV *	2077	SV *
1781	has_stack (Coro::State coro)	2078	has_cctx (Coro::State coro)
1782	PROTOTYPE: $	2079	PROTOTYPE: $
1783	CODE:	2080	CODE:
1784	RETVAL = boolSV (!!coro->cctx);	2081	RETVAL = boolSV (!!coro->cctx);
1785	OUTPUT:	2082	OUTPUT:
1786	RETVAL	2083	RETVAL
…		…
1791	CODE:	2088	CODE:
1792	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2089	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1793	OUTPUT:	2090	OUTPUT:
1794	RETVAL	2091	RETVAL
1795		2092
1796	IV	2093	UV
1797	rss (Coro::State coro)	2094	rss (Coro::State coro)
1798	PROTOTYPE: $	2095	PROTOTYPE: $
1799	ALIAS:	2096	ALIAS:
1800	usecount = 1	2097	usecount = 1
1801	CODE:	2098	CODE:
…		…
1805	case 1: RETVAL = coro->usecount; break;	2102	case 1: RETVAL = coro->usecount; break;
1806	}	2103	}
1807	OUTPUT:	2104	OUTPUT:
1808	RETVAL	2105	RETVAL
1809		2106
1810
1811	MODULE = Coro::State PACKAGE = Coro
1812
1813	BOOT:
1814	{
1815	int i;
1816
1817	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1818	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1819	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1820
1821	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1822	SvREADONLY_on (coro_current);
1823
1824	coro_stash = gv_stashpv ("Coro", TRUE);
1825
1826	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1827	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1828	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1829	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1830	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1831	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1832
1833	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1834	coro_ready[i] = newAV ();
1835
1836	{
1837	SV *sv = perl_get_sv ("Coro::API", TRUE);
1838	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1839
1840	coroapi.schedule = api_schedule;
1841	coroapi.cede = api_cede;
1842	coroapi.cede_notself = api_cede_notself;
1843	coroapi.ready = api_ready;
1844	coroapi.is_ready = api_is_ready;
1845	coroapi.nready = &coro_nready;
1846	coroapi.current = coro_current;
1847
1848	GCoroAPI = &coroapi;
1849	sv_setiv (sv, (IV)&coroapi);
1850	SvREADONLY_on (sv);
1851	}
1852	}
1853
1854	void	2107	void
1855	_set_current (SV *current)	2108	force_cctx ()
1856	PROTOTYPE: $
1857	CODE:	2109	CODE:
1858	SvREFCNT_dec (SvRV (coro_current));	2110	struct coro *coro = SvSTATE (coro_current);
1859	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2111	coro->cctx->idle_sp = 0;
1860
1861	int
1862	prio (Coro::State coro, int newprio = 0)
1863	ALIAS:
1864	nice = 1
1865	CODE:
1866	{
1867	RETVAL = coro->prio;
1868
1869	if (items > 1)
1870	{
1871	if (ix)
1872	newprio = coro->prio - newprio;
1873
1874	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1875	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1876
1877	coro->prio = newprio;
1878	}
1879	}
1880	OUTPUT:
1881	RETVAL
1882
1883	SV *
1884	ready (SV *self)
1885	PROTOTYPE: $
1886	CODE:
1887	RETVAL = boolSV (api_ready (self));
1888	OUTPUT:
1889	RETVAL
1890
1891	int
1892	nready (...)
1893	PROTOTYPE:
1894	CODE:
1895	RETVAL = coro_nready;
1896	OUTPUT:
1897	RETVAL
1898
1899	void
1900	throw (Coro::State self, SV *throw = &PL_sv_undef)
1901	PROTOTYPE: $;$
1902	CODE:
1903	SvREFCNT_dec (self->throw);
1904	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1905		2112
1906	void	2113	void
1907	swap_defsv (Coro::State self)	2114	swap_defsv (Coro::State self)
1908	PROTOTYPE: $	2115	PROTOTYPE: $
1909	ALIAS:	2116	ALIAS:
…		…
1917	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;	2124	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
1918		2125
1919	SV tmp = src; src = dst; *dst = tmp;	2126	SV tmp = src; src = dst; *dst = tmp;
1920	}	2127	}
1921		2128
		2129	MODULE = Coro::State PACKAGE = Coro
		2130
		2131	BOOT:
		2132	{
		2133	int i;
		2134
		2135	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2136	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2137	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
		2138
		2139	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
		2140	SvREADONLY_on (coro_current);
		2141
		2142	coro_stash = gv_stashpv ("Coro", TRUE);
		2143
		2144	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
		2145	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		2146	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		2147	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
		2148	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		2149	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
		2150
		2151	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		2152	coro_ready[i] = newAV ();
		2153
		2154	{
		2155	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
		2156
		2157	coroapi.schedule = api_schedule;
		2158	coroapi.cede = api_cede;
		2159	coroapi.cede_notself = api_cede_notself;
		2160	coroapi.ready = api_ready;
		2161	coroapi.is_ready = api_is_ready;
		2162	coroapi.nready = &coro_nready;
		2163	coroapi.current = coro_current;
		2164
		2165	GCoroAPI = &coroapi;
		2166	sv_setiv (sv, (IV)&coroapi);
		2167	SvREADONLY_on (sv);
		2168	}
		2169	}
		2170
		2171	void
		2172	_set_current (SV *current)
		2173	PROTOTYPE: $
		2174	CODE:
		2175	SvREFCNT_dec (SvRV (coro_current));
		2176	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2177
		2178	void
		2179	_set_readyhook (SV *hook)
		2180	PROTOTYPE: $
		2181	CODE:
		2182	LOCK;
		2183	SvREFCNT_dec (coro_readyhook);
		2184	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2185	UNLOCK;
		2186
		2187	int
		2188	prio (Coro::State coro, int newprio = 0)
		2189	ALIAS:
		2190	nice = 1
		2191	CODE:
		2192	{
		2193	RETVAL = coro->prio;
		2194
		2195	if (items > 1)
		2196	{
		2197	if (ix)
		2198	newprio = coro->prio - newprio;
		2199
		2200	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		2201	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		2202
		2203	coro->prio = newprio;
		2204	}
		2205	}
		2206	OUTPUT:
		2207	RETVAL
		2208
		2209	SV *
		2210	ready (SV *self)
		2211	PROTOTYPE: $
		2212	CODE:
		2213	RETVAL = boolSV (api_ready (self));
		2214	OUTPUT:
		2215	RETVAL
		2216
		2217	int
		2218	nready (...)
		2219	PROTOTYPE:
		2220	CODE:
		2221	RETVAL = coro_nready;
		2222	OUTPUT:
		2223	RETVAL
		2224
1922	# for async_pool speedup	2225	# for async_pool speedup
1923	void	2226	void
1924	_pool_1 (SV *cb)	2227	_pool_1 (SV *cb)
1925	CODE:	2228	CODE:
1926	{	2229	{
…		…
1931	AV *invoke_av;	2234	AV *invoke_av;
1932	int i, len;	2235	int i, len;
1933		2236
1934	if (!invoke)	2237	if (!invoke)
1935	{	2238	{
1936	SvREFCNT_dec (PL_diehook); PL_diehook = 0;	2239	SV *old = PL_diehook;
		2240	PL_diehook = 0;
		2241	SvREFCNT_dec (old);
1937	croak ("\3async_pool terminate\2\n");	2242	croak ("\3async_pool terminate\2\n");
1938	}	2243	}
1939		2244
1940	SvREFCNT_dec (coro->saved_deffh);	2245	SvREFCNT_dec (coro->saved_deffh);
1941	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2246	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1942		2247
1943	hv_store (hv, "desc", sizeof ("desc") - 1,	2248	hv_store (hv, "desc", sizeof ("desc") - 1,
1944	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2249	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1945		2250
1946	invoke_av = (AV *)SvRV (invoke);	2251	invoke_av = (AV *)SvRV (invoke);
…		…
1950		2255
1951	if (len > 0)	2256	if (len > 0)
1952	{	2257	{
1953	av_fill (defav, len - 1);	2258	av_fill (defav, len - 1);
1954	for (i = 0; i < len; ++i)	2259	for (i = 0; i < len; ++i)
1955	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2260	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1956	}	2261	}
1957		2262
1958	SvREFCNT_dec (invoke);	2263	SvREFCNT_dec (invoke);
1959	}	2264	}
1960		2265
…		…
1967	sv_setsv (cb, &PL_sv_undef);	2272	sv_setsv (cb, &PL_sv_undef);
1968		2273
1969	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2274	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1970	coro->saved_deffh = 0;	2275	coro->saved_deffh = 0;
1971		2276
1972	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2277	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1973	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2278	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1974	{	2279	{
1975	SvREFCNT_dec (PL_diehook); PL_diehook = 0;	2280	SV *old = PL_diehook;
		2281	PL_diehook = 0;
		2282	SvREFCNT_dec (old);
1976	croak ("\3async_pool terminate\2\n");	2283	croak ("\3async_pool terminate\2\n");
1977	}	2284	}
1978		2285
1979	av_clear (GvAV (PL_defgv));	2286	av_clear (GvAV (PL_defgv));
1980	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2287	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
…		…
1986	api_trace (coro_current, 0);	2293	api_trace (coro_current, 0);
1987		2294
1988	av_push (av_async_pool, newSVsv (coro_current));	2295	av_push (av_async_pool, newSVsv (coro_current));
1989	}	2296	}
1990		2297
		2298	#if 0
		2299
		2300	void
		2301	_generator_call (...)
		2302	PROTOTYPE: @
		2303	PPCODE:
		2304	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2305	xxxx
		2306	abort ();
		2307
		2308	SV *
		2309	gensub (SV *sub, ...)
		2310	PROTOTYPE: &;@
		2311	CODE:
		2312	{
		2313	struct coro *coro;
		2314	MAGIC *mg;
		2315	CV *xcv;
		2316	CV ncv = (CV )newSV_type (SVt_PVCV);
		2317	int i;
		2318
		2319	CvGV (ncv) = CvGV (cv);
		2320	CvFILE (ncv) = CvFILE (cv);
		2321
		2322	Newz (0, coro, 1, struct coro);
		2323	coro->args = newAV ();
		2324	coro->flags = CF_NEW;
		2325
		2326	av_extend (coro->args, items - 1);
		2327	for (i = 1; i < items; i++)
		2328	av_push (coro->args, newSVsv (ST (i)));
		2329
		2330	CvISXSUB_on (ncv);
		2331	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2332
		2333	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2334
		2335	CvXSUB (ncv) = CvXSUB (xcv);
		2336	CvANON_on (ncv);
		2337
		2338	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2339	RETVAL = newRV_noinc ((SV *)ncv);
		2340	}
		2341	OUTPUT:
		2342	RETVAL
		2343
		2344	#endif
		2345
1991		2346
1992	MODULE = Coro::State PACKAGE = Coro::AIO	2347	MODULE = Coro::State PACKAGE = Coro::AIO
1993		2348
1994	SV *	2349	void
1995	_get_state ()	2350	_get_state (SV *self)
1996	CODE:	2351	PPCODE:
1997	{	2352	{
1998	struct io_state *data;	2353	AV *defav = GvAV (PL_defgv);
1999		2354	AV *av = newAV ();
		2355	int i;
2000	RETVAL = newSV (sizeof (struct io_state));	2356	SV *data_sv = newSV (sizeof (struct io_state));
2001	data = (struct io_state *)SvPVX (RETVAL);	2357	struct io_state data = (struct io_state )SvPVX (data_sv);
2002	SvCUR_set (RETVAL, sizeof (struct io_state));	2358	SvCUR_set (data_sv, sizeof (struct io_state));
2003	SvPOK_only (RETVAL);	2359	SvPOK_only (data_sv);
2004		2360
2005	data->errorno = errno;	2361	data->errorno = errno;
2006	data->laststype = PL_laststype;	2362	data->laststype = PL_laststype;
2007	data->laststatval = PL_laststatval;	2363	data->laststatval = PL_laststatval;
2008	data->statcache = PL_statcache;	2364	data->statcache = PL_statcache;
		2365
		2366	av_extend (av, AvFILLp (defav) + 1 + 1);
		2367
		2368	for (i = 0; i <= AvFILLp (defav); ++i)
		2369	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2370
		2371	av_push (av, data_sv);
		2372
		2373	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2374
		2375	api_ready (self);
2009	}	2376	}
2010	OUTPUT:
2011	RETVAL
2012		2377
2013	void	2378	void
2014	_set_state (char *data_)	2379	_set_state (SV *state)
2015	PROTOTYPE: $	2380	PROTOTYPE: $
2016	CODE:	2381	PPCODE:
2017	{	2382	{
2018	struct io_state data = (void )data_;	2383	AV av = (AV )SvRV (state);
		2384	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2385	int i;
2019		2386
2020	errno = data->errorno;	2387	errno = data->errorno;
2021	PL_laststype = data->laststype;	2388	PL_laststype = data->laststype;
2022	PL_laststatval = data->laststatval;	2389	PL_laststatval = data->laststatval;
2023	PL_statcache = data->statcache;	2390	PL_statcache = data->statcache;
2024	}
2025		2391
		2392	EXTEND (SP, AvFILLp (av));
		2393	for (i = 0; i < AvFILLp (av); ++i)
		2394	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2395	}
		2396
		2397
		2398	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2399
		2400	BOOT:
		2401	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2402
		2403	SV *
		2404	_schedule (...)
		2405	PROTOTYPE: @
		2406	CODE:
		2407	{
		2408	static int incede;
		2409
		2410	api_cede_notself ();
		2411
		2412	++incede;
		2413	while (coro_nready >= incede && api_cede ())
		2414	;
		2415
		2416	sv_setsv (sv_activity, &PL_sv_undef);
		2417	if (coro_nready >= incede)
		2418	{
		2419	PUSHMARK (SP);
		2420	PUTBACK;
		2421	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2422	SPAGAIN;
		2423	}
		2424
		2425	--incede;
		2426	}
		2427
		2428
		2429	MODULE = Coro::State PACKAGE = PerlIO::cede
		2430
		2431	BOOT:
		2432	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2433

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Comparing Coro/Coro/State.xs (file contents): Revision 1.225 by root, Wed Mar 12 14:13:11 2008 UTC vs. Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.225 by root, Wed Mar 12 14:13:11 2008 UTC vs.
Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC