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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.228 by root, Sun Apr 6 17:51:15 2008 UTC vs.
Revision 1.265 by root, Fri Nov 14 02:42:26 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)
…		…
112		123
113	#define IN_DESTRUCT (PL_main_cv == Nullcv)	124	#define IN_DESTRUCT (PL_main_cv == Nullcv)
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")
118	# define expect(expr,value) __builtin_expect ((expr),(value))	128	# define expect(expr,value) __builtin_expect ((expr),(value))
		129	# define INLINE static inline
119	#else	130	#else
120	# define attribute(x)	131	# define attribute(x)
121	# define BARRIER
122	# define expect(expr,value) (expr)	132	# define expect(expr,value) (expr)
		133	# define INLINE static
123	#endif	134	#endif
124		135
125	#define expect_false(expr) expect ((expr) != 0, 0)	136	#define expect_false(expr) expect ((expr) != 0, 0)
126	#define expect_true(expr) expect ((expr) != 0, 1)	137	#define expect_true(expr) expect ((expr) != 0, 1)
127		138
128	#define NOINLINE attribute ((noinline))	139	#define NOINLINE attribute ((noinline))
129		140
130	#include "CoroAPI.h"	141	#include "CoroAPI.h"
131		142
132	#ifdef USE_ITHREADS	143	#ifdef USE_ITHREADS
		144
133	static perl_mutex coro_mutex;	145	static perl_mutex coro_lock;
134	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	146	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
135	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	147	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		148	# if CORO_PTHREAD
		149	static void *coro_thx;
		150	# endif
		151
136	#else	152	#else
		153
137	# define LOCK (void)0	154	# define LOCK (void)0
138	# define UNLOCK (void)0	155	# define UNLOCK (void)0
		156
139	#endif	157	#endif
		158
		159	# undef LOCK
		160	# define LOCK (void)0
		161	# undef UNLOCK
		162	# define UNLOCK (void)0
140		163
141	/* helper storage struct for Coro::AIO */	164	/* helper storage struct for Coro::AIO */
142	struct io_state	165	struct io_state
143	{	166	{
		167	AV *res;
144	int errorno;	168	int errorno;
145	I32 laststype;	169	I32 laststype; /* U16 in 5.10.0 */
146	int laststatval;	170	int laststatval;
147	Stat_t statcache;	171	Stat_t statcache;
148	};	172	};
149		173
		174	static double (nvtime)(); / so why doesn't it take void? */
		175
		176	static U32 cctx_gen;
150	static size_t coro_stacksize = CORO_STACKSIZE;	177	static size_t cctx_stacksize = CORO_STACKSIZE;
151	static struct CoroAPI coroapi;	178	static struct CoroAPI coroapi;
152	static AV main_mainstack; / used to differentiate between $main and others */	179	static AV main_mainstack; / used to differentiate between $main and others */
153	static JMPENV *main_top_env;	180	static JMPENV *main_top_env;
154	static HV coro_state_stash, coro_stash;	181	static HV coro_state_stash, coro_stash;
155	static volatile SV coro_mortal; / will be freed after next transfer */	182	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		183	static volatile struct coro *transfer_next;
		184
		185	struct transfer_args
		186	{
		187	struct coro prev, next;
		188	};
156		189
157	static GV irsgv; / $/ */	190	static GV irsgv; / $/ */
158	static GV stdoutgv; / STDOUT /	191	static GV stdoutgv; / STDOUT /
159	static SV *rv_diehook;	192	static SV *rv_diehook;
160	static SV *rv_warnhook;	193	static SV *rv_warnhook;
…		…
162		195
163	/* async_pool helper stuff */	196	/* async_pool helper stuff */
164	static SV *sv_pool_rss;	197	static SV *sv_pool_rss;
165	static SV *sv_pool_size;	198	static SV *sv_pool_size;
166	static AV *av_async_pool;	199	static AV *av_async_pool;
		200
		201	/* Coro::AnyEvent */
		202	static SV *sv_activity;
167		203
168	static struct coro_cctx *cctx_first;	204	static struct coro_cctx *cctx_first;
169	static int cctx_count, cctx_idle;	205	static int cctx_count, cctx_idle;
170		206
171	enum {	207	enum {
…		…
189	void idle_sp; / sp of top-level transfer/schedule/cede call */	225	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 */	226	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
191	JMPENV *top_env;	227	JMPENV *top_env;
192	coro_context cctx;	228	coro_context cctx;
193		229
		230	U32 gen;
194	#if CORO_USE_VALGRIND	231	#if CORO_USE_VALGRIND
195	int valgrind_id;	232	int valgrind_id;
196	#endif	233	#endif
197	unsigned char flags;	234	unsigned char flags;
198	} coro_cctx;	235	} coro_cctx;
…		…
257	#define PRIO_IDLE -3	294	#define PRIO_IDLE -3
258	#define PRIO_MIN -4	295	#define PRIO_MIN -4
259		296
260	/* for Coro.pm */	297	/* for Coro.pm */
261	static SV *coro_current;	298	static SV *coro_current;
		299	static SV *coro_readyhook;
262	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	300	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
263	static int coro_nready;	301	static int coro_nready;
264	static struct coro *coro_first;	302	static struct coro *coro_first;
265		303
266	/ lowlevel stuff ********************************************************/	304	/ lowlevel stuff ********************************************************/
267		305
…		…
309	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	347	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
310	#endif	348	#endif
311	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	349	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
312	--AvFILLp (padlist);	350	--AvFILLp (padlist);
313		351
314	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	352	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
315	av_store (newpadlist, 1, (SV *)newpad);	353	av_store (newpadlist, 1, (SV *)newpad);
316		354
317	return newpadlist;	355	return newpadlist;
318	}	356	}
319		357
…		…
349		387
350	/* casting is fun. */	388	/* casting is fun. */
351	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	389	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
352	free_padlist (aTHX_ padlist);	390	free_padlist (aTHX_ padlist);
353		391
		392	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
		393
354	return 0;	394	return 0;
355	}	395	}
356		396
357	#define CORO_MAGIC_type_cv PERL_MAGIC_ext	397	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
358	#define CORO_MAGIC_type_state PERL_MAGIC_ext	398	#define CORO_MAGIC_type_state PERL_MAGIC_ext
…		…
360	static MGVTBL coro_cv_vtbl = {	400	static MGVTBL coro_cv_vtbl = {
361	0, 0, 0, 0,	401	0, 0, 0, 0,
362	coro_cv_free	402	coro_cv_free
363	};	403	};
364		404
365	#define CORO_MAGIC(sv,type) \	405	#define CORO_MAGIC(sv, type) \
366	SvMAGIC (sv) \	406	SvMAGIC (sv) \
367	? SvMAGIC (sv)->mg_type == type \	407	? SvMAGIC (sv)->mg_type == type \
368	? SvMAGIC (sv) \	408	? SvMAGIC (sv) \
369	: mg_find (sv, type) \	409	: mg_find (sv, type) \
370	: 0	410	: 0
371		411
372	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	412	#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)	413	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
374		414
375	static struct coro *	415	INLINE struct coro *
376	SvSTATE_ (pTHX_ SV *coro)	416	SvSTATE_ (pTHX_ SV *coro)
377	{	417	{
378	HV *stash;	418	HV *stash;
379	MAGIC *mg;	419	MAGIC *mg;
380		420
…		…
408	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	448	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
409	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	449	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
410	else	450	else
411	{	451	{
412	#if CORO_PREFER_PERL_FUNCTIONS	452	#if CORO_PREFER_PERL_FUNCTIONS
413	/* this is probably cleaner, but also slower? */	453	/* this is probably cleaner? but also slower! */
		454	/* in practise, it seems to be less stable */
414	CV *cp = Perl_cv_clone (cv);	455	CV *cp = Perl_cv_clone (cv);
415	CvPADLIST (cv) = CvPADLIST (cp);	456	CvPADLIST (cv) = CvPADLIST (cp);
416	CvPADLIST (cp) = 0;	457	CvPADLIST (cp) = 0;
417	SvREFCNT_dec (cp);	458	SvREFCNT_dec (cp);
418	#else	459	#else
…		…
502		543
503	if (expect_true (CvDEPTH (cv)))	544	if (expect_true (CvDEPTH (cv)))
504	{	545	{
505	EXTEND (SP, 3);	546	EXTEND (SP, 3);
506	PUSHs ((SV *)CvPADLIST (cv));	547	PUSHs ((SV *)CvPADLIST (cv));
507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	548	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508	PUSHs ((SV *)cv);	549	PUSHs ((SV *)cv);
509		550
510	CvDEPTH (cv) = 0;	551	CvDEPTH (cv) = 0;
511	get_padlist (aTHX_ cv);	552	get_padlist (aTHX_ cv);
512	}	553	}
…		…
604		645
605	/*	646	/*
606	* destroy the stacks, the callchain etc...	647	* destroy the stacks, the callchain etc...
607	*/	648	*/
608	static void	649	static void
609	coro_destroy_stacks (pTHX)	650	coro_destruct_stacks (pTHX)
610	{	651	{
611	while (PL_curstackinfo->si_next)	652	while (PL_curstackinfo->si_next)
612	PL_curstackinfo = PL_curstackinfo->si_next;	653	PL_curstackinfo = PL_curstackinfo->si_next;
613		654
614	while (PL_curstackinfo)	655	while (PL_curstackinfo)
…		…
651	#undef VAR	692	#undef VAR
652	}	693	}
653	else	694	else
654	slot = coro->slot;	695	slot = coro->slot;
655		696
		697	if (slot)
		698	{
656	rss += sizeof (slot->curstackinfo);	699	rss += sizeof (slot->curstackinfo);
657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	700	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	701	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
659	rss += slot->tmps_max * sizeof (SV *);	702	rss += slot->tmps_max * sizeof (SV *);
660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	703	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661	rss += slot->scopestack_max * sizeof (I32);	704	rss += slot->scopestack_max * sizeof (I32);
662	rss += slot->savestack_max * sizeof (ANY);	705	rss += slot->savestack_max * sizeof (ANY);
663		706
664	#if !PERL_VERSION_ATLEAST (5,10,0)	707	#if !PERL_VERSION_ATLEAST (5,10,0)
665	rss += slot->retstack_max * sizeof (OP *);	708	rss += slot->retstack_max * sizeof (OP *);
666	#endif	709	#endif
		710	}
667	}	711	}
668		712
669	return rss;	713	return rss;
		714	}
		715
		716	/ set stacklevel support ************************************************/
		717
		718	/* we sometimes need to create the effect of pp_set_stacklevel calling us */
		719	#define SSL_HEAD (void)0
		720	/* we somtimes need to create the effect of leaving via pp_set_stacklevel */
		721	#define SSL_TAIL set_stacklevel_tail (aTHX)
		722
		723	INLINE void
		724	set_stacklevel_tail (pTHX)
		725	{
		726	dSP;
		727	int gimme = GIMME_V;
		728
		729	if (gimme == G_SCALAR)
		730	XPUSHs (&PL_sv_undef);
		731
		732	PUTBACK;
670	}	733	}
671		734
672	/ coroutine stack handling **********************************************/	735	/ coroutine stack handling **********************************************/
673		736
674	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);	737	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
675	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);	738	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		739	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		740
		741	/* apparently < 5.8.8 */
		742	#ifndef MgPV_nolen_const
		743	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		744	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		745	(const char*)(mg)->mg_ptr)
		746	#endif
676		747
677	/*	748	/*
678	* This overrides the default magic get method of %SIG elements.	749	* 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	750	* 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	751	* and instead of tryign to save and restore the hash elements, we just provide
…		…
688	{	759	{
689	const char *s = MgPV_nolen_const (mg);	760	const char *s = MgPV_nolen_const (mg);
690		761
691	if (*s == '_')	762	if (*s == '_')
692	{	763	{
693	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;	764	SV **svp = 0;
694	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 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_setsv (sv, svp ? svp : &PL_sv_undef);
		772	return 0;
		773	}
695	}	774	}
696		775
697	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;	776	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		777	}
		778
		779	static int
		780	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		781	{
		782	const char *s = MgPV_nolen_const (mg);
		783
		784	if (*s == '_')
		785	{
		786	SV **svp = 0;
		787
		788	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		789	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		790
		791	if (svp)
		792	{
		793	SV old = svp;
		794	*svp = 0;
		795	SvREFCNT_dec (old);
		796	return 0;
		797	}
		798	}
		799
		800	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
698	}	801	}
699		802
700	static int	803	static int
701	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)	804	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
702	{	805	{
…		…
712	if (svp)	815	if (svp)
713	{	816	{
714	SV old = svp;	817	SV old = svp;
715	*svp = newSVsv (sv);	818	*svp = newSVsv (sv);
716	SvREFCNT_dec (old);	819	SvREFCNT_dec (old);
717	return;	820	return 0;
718	}	821	}
719	}	822	}
720		823
721	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;	824	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
722	}	825	}
…		…
736	PL_curpm = 0;	839	PL_curpm = 0;
737	PL_curpad = 0;	840	PL_curpad = 0;
738	PL_localizing = 0;	841	PL_localizing = 0;
739	PL_dirty = 0;	842	PL_dirty = 0;
740	PL_restartop = 0;	843	PL_restartop = 0;
741	#if !PERL_VERSION_ATLEAST (5,10,0)	844	#if PERL_VERSION_ATLEAST (5,10,0)
742	PL_parser = 0;	845	PL_parser = 0;
743	#endif	846	#endif
744		847
745	/* recreate the die/warn hooks */	848	/* recreate the die/warn hooks */
746	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	849	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
…		…
749	GvSV (PL_defgv) = newSV (0);	852	GvSV (PL_defgv) = newSV (0);
750	GvAV (PL_defgv) = coro->args; coro->args = 0;	853	GvAV (PL_defgv) = coro->args; coro->args = 0;
751	GvSV (PL_errgv) = newSV (0);	854	GvSV (PL_errgv) = newSV (0);
752	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	855	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
753	PL_rs = newSVsv (GvSV (irsgv));	856	PL_rs = newSVsv (GvSV (irsgv));
754	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	857	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
755		858
756	{	859	{
757	dSP;	860	dSP;
758	LOGOP myop;	861	UNOP myop;
759		862
760	Zero (&myop, 1, LOGOP);	863	Zero (&myop, 1, UNOP);
761	myop.op_next = Nullop;	864	myop.op_next = Nullop;
762	myop.op_flags = OPf_WANT_VOID;	865	myop.op_flags = OPf_WANT_VOID;
763		866
764	PUSHMARK (SP);	867	PUSHMARK (SP);
765	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	868	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
768	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	871	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
769	SPAGAIN;	872	SPAGAIN;
770	}	873	}
771		874
772	/* this newly created coroutine might be run on an existing cctx which most	875	/* this newly created coroutine might be run on an existing cctx which most
773	* likely was suspended in set_stacklevel, called from entersub.	876	* likely was suspended in set_stacklevel, called from pp_set_stacklevel,
774	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,	877	* so we have to emulate entering pp_set_stacklevel here.
775	* so we ENTER here for symmetry
776	*/	878	*/
777	ENTER;	879	SSL_HEAD;
778	}	880	}
779		881
780	static void	882	static void
781	coro_destroy (pTHX_ struct coro *coro)	883	coro_destruct (pTHX_ struct coro *coro)
782	{	884	{
783	if (!IN_DESTRUCT)	885	if (!IN_DESTRUCT)
784	{	886	{
785	/* restore all saved variables and stuff */	887	/* restore all saved variables and stuff */
786	LEAVE_SCOPE (0);	888	LEAVE_SCOPE (0);
…		…
808	SvREFCNT_dec (PL_warnhook);	910	SvREFCNT_dec (PL_warnhook);
809		911
810	SvREFCNT_dec (coro->saved_deffh);	912	SvREFCNT_dec (coro->saved_deffh);
811	SvREFCNT_dec (coro->throw);	913	SvREFCNT_dec (coro->throw);
812		914
813	coro_destroy_stacks (aTHX);	915	coro_destruct_stacks (aTHX);
814	}	916	}
815		917
816	static void	918	INLINE void
817	free_coro_mortal (pTHX)	919	free_coro_mortal (pTHX)
818	{	920	{
819	if (expect_true (coro_mortal))	921	if (expect_true (coro_mortal))
820	{	922	{
821	SvREFCNT_dec (coro_mortal);	923	SvREFCNT_dec (coro_mortal);
…		…
855	: cx->blk_gimme == G_SCALAR ? bot + 1	957	: cx->blk_gimme == G_SCALAR ? bot + 1
856	: bot;	958	: bot;
857		959
858	av_extend (av, top - bot);	960	av_extend (av, top - bot);
859	while (bot < top)	961	while (bot < top)
860	av_push (av, SvREFCNT_inc (*bot++));	962	av_push (av, SvREFCNT_inc_NN (*bot++));
861		963
862	PL_runops = RUNOPS_DEFAULT;	964	PL_runops = RUNOPS_DEFAULT;
863	ENTER;	965	ENTER;
864	SAVETMPS;	966	SAVETMPS;
865	EXTEND (SP, 3);	967	EXTEND (SP, 3);
…		…
945		1047
946	TAINT_NOT;	1048	TAINT_NOT;
947	return 0;	1049	return 0;
948	}	1050	}
949		1051
		1052	static void
		1053	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1054	{
		1055	ta->prev = (struct coro *)cctx;
		1056	ta->next = 0;
		1057	}
		1058
950	/* inject a fake call to Coro::State::_cctx_init into the execution */	1059	/* inject a fake call to Coro::State::_cctx_init into the execution */
951	/* _cctx_init should be careful, as it could be called at almost any time */	1060	/* _cctx_init should be careful, as it could be called at almost any time */
952	/* during execution of a perl program */	1061	/* during execution of a perl program */
		1062	/* also initialises PL_top_env */
953	static void NOINLINE	1063	static void NOINLINE
954	cctx_prepare (pTHX_ coro_cctx *cctx)	1064	cctx_prepare (pTHX_ coro_cctx *cctx)
955	{	1065	{
956	dSP;	1066	dSP;
957	LOGOP myop;	1067	UNOP myop;
958		1068
959	PL_top_env = &PL_start_env;	1069	PL_top_env = &PL_start_env;
960		1070
961	if (cctx->flags & CC_TRACE)	1071	if (cctx->flags & CC_TRACE)
962	PL_runops = runops_trace;	1072	PL_runops = runops_trace;
963		1073
964	Zero (&myop, 1, LOGOP);	1074	Zero (&myop, 1, UNOP);
965	myop.op_next = PL_op;	1075	myop.op_next = PL_op;
966	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1076	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
967		1077
968	PUSHMARK (SP);	1078	PUSHMARK (SP);
969	EXTEND (SP, 2);	1079	EXTEND (SP, 2);
970	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1080	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
971	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1081	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
972	PUTBACK;	1082	PUTBACK;
973	PL_op = (OP *)&myop;	1083	PL_op = (OP *)&myop;
974	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1084	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
975	SPAGAIN;	1085	SPAGAIN;
976	}	1086	}
977		1087
		1088	/* the tail of transfer: execute stuff we can only do after a transfer */
		1089	INLINE void
		1090	transfer_tail (pTHX)
		1091	{
		1092	struct coro next = (struct coro )transfer_next;
		1093	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1094	assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
		1095
		1096	free_coro_mortal (aTHX);
		1097	UNLOCK;
		1098
		1099	if (expect_false (next->throw))
		1100	{
		1101	SV *exception = sv_2mortal (next->throw);
		1102
		1103	next->throw = 0;
		1104	sv_setsv (ERRSV, exception);
		1105	croak (0);
		1106	}
		1107	}
		1108
978	/*	1109	/*
979	* this is a _very_ stripped down perl interpreter ;)	1110	* this is a _very_ stripped down perl interpreter ;)
980	*/	1111	*/
981	static void	1112	static void
982	cctx_run (void *arg)	1113	cctx_run (void *arg)
983	{	1114	{
		1115	#ifdef USE_ITHREADS
		1116	# if CORO_PTHREAD
		1117	PERL_SET_CONTEXT (coro_thx);
		1118	# endif
		1119	#endif
		1120	{
984	dTHX;	1121	dTHX;
985		1122
986	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1123	/* we are the alternative tail to pp_set_stacklevel */
987	UNLOCK;	1124	/* so do the same things here */
		1125	SSL_TAIL;
988		1126
989	/* we now skip the entersub that lead to transfer() */	1127	/* we now skip the op that did lead to transfer() */
990	PL_op = PL_op->op_next;	1128	PL_op = PL_op->op_next;
991		1129
992	/* inject a fake subroutine call to cctx_init */	1130	/* inject a fake subroutine call to cctx_init */
993	cctx_prepare (aTHX_ (coro_cctx *)arg);	1131	cctx_prepare (aTHX_ (coro_cctx *)arg);
994		1132
		1133	/* cctx_run is the alternative tail of transfer() */
		1134	transfer_tail (aTHX);
		1135
995	/* somebody or something will hit me for both perl_run and PL_restartop */	1136	/* somebody or something will hit me for both perl_run and PL_restartop */
996	PL_restartop = PL_op;	1137	PL_restartop = PL_op;
997	perl_run (PL_curinterp);	1138	perl_run (PL_curinterp);
998		1139
999	/*	1140	/*
1000	* If perl-run returns we assume exit() was being called or the coro	1141	* If perl-run returns we assume exit() was being called or the coro
1001	* fell off the end, which seems to be the only valid (non-bug)	1142	* fell off the end, which seems to be the only valid (non-bug)
1002	* reason for perl_run to return. We try to exit by jumping to the	1143	* reason for perl_run to return. We try to exit by jumping to the
1003	* bootstrap-time "top" top_env, as we cannot restore the "main"	1144	* bootstrap-time "top" top_env, as we cannot restore the "main"
1004	* coroutine as Coro has no such concept	1145	* coroutine as Coro has no such concept
1005	*/	1146	*/
1006	PL_top_env = main_top_env;	1147	PL_top_env = main_top_env;
1007	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1148	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1149	}
1008	}	1150	}
1009		1151
1010	static coro_cctx *	1152	static coro_cctx *
1011	cctx_new ()	1153	cctx_new ()
1012	{	1154	{
1013	coro_cctx *cctx;	1155	coro_cctx *cctx;
		1156
		1157	++cctx_count;
		1158	New (0, cctx, 1, coro_cctx);
		1159
		1160	cctx->gen = cctx_gen;
		1161	cctx->flags = 0;
		1162	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1163
		1164	return cctx;
		1165	}
		1166
		1167	/* create a new cctx only suitable as source */
		1168	static coro_cctx *
		1169	cctx_new_empty ()
		1170	{
		1171	coro_cctx *cctx = cctx_new ();
		1172
		1173	cctx->sptr = 0;
		1174	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1175
		1176	return cctx;
		1177	}
		1178
		1179	/* create a new cctx suitable as destination/running a perl interpreter */
		1180	static coro_cctx *
		1181	cctx_new_run ()
		1182	{
		1183	coro_cctx *cctx = cctx_new ();
1014	void *stack_start;	1184	void *stack_start;
1015	size_t stack_size;	1185	size_t stack_size;
1016		1186
1017	++cctx_count;
1018
1019	Newz (0, cctx, 1, coro_cctx);
1020
1021	#if HAVE_MMAP	1187	#if HAVE_MMAP
1022	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1188	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1023	/* mmap supposedly does allocate-on-write for us */	1189	/* mmap supposedly does allocate-on-write for us */
1024	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1190	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
1025		1191
1026	if (cctx->sptr != (void *)-1)	1192	if (cctx->sptr != (void *)-1)
1027	{	1193	{
1028	# if CORO_STACKGUARD	1194	#if CORO_STACKGUARD
1029	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1195	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1030	# endif	1196	#endif
1031	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1197	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
1032	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1198	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1033	cctx->flags \|= CC_MAPPED;	1199	cctx->flags \|= CC_MAPPED;
1034	}	1200	}
1035	else	1201	else
1036	#endif	1202	#endif
1037	{	1203	{
1038	cctx->ssize = coro_stacksize * (long)sizeof (long);	1204	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1039	New (0, cctx->sptr, coro_stacksize, long);	1205	New (0, cctx->sptr, cctx_stacksize, long);
1040		1206
1041	if (!cctx->sptr)	1207	if (!cctx->sptr)
1042	{	1208	{
1043	perror ("FATAL: unable to allocate stack for coroutine");	1209	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1044	_exit (EXIT_FAILURE);	1210	_exit (EXIT_FAILURE);
1045	}	1211	}
1046		1212
1047	stack_start = cctx->sptr;	1213	stack_start = cctx->sptr;
1048	stack_size = cctx->ssize;	1214	stack_size = cctx->ssize;
1049	}	1215	}
1050		1216
1051	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1217	#if CORO_USE_VALGRIND
		1218	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1219	#endif
		1220
1052	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1221	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1053		1222
1054	return cctx;	1223	return cctx;
1055	}	1224	}
1056		1225
…		…
1059	{	1228	{
1060	if (!cctx)	1229	if (!cctx)
1061	return;	1230	return;
1062		1231
1063	--cctx_count;	1232	--cctx_count;
		1233	coro_destroy (&cctx->cctx);
1064		1234
		1235	/* coro_transfer creates new, empty cctx's */
		1236	if (cctx->sptr)
		1237	{
1065	#if CORO_USE_VALGRIND	1238	#if CORO_USE_VALGRIND
1066	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1239	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1067	#endif	1240	#endif
1068		1241
1069	#if HAVE_MMAP	1242	#if HAVE_MMAP
1070	if (cctx->flags & CC_MAPPED)	1243	if (cctx->flags & CC_MAPPED)
1071	munmap (cctx->sptr, cctx->ssize);	1244	munmap (cctx->sptr, cctx->ssize);
1072	else	1245	else
1073	#endif	1246	#endif
1074	Safefree (cctx->sptr);	1247	Safefree (cctx->sptr);
		1248	}
1075		1249
1076	Safefree (cctx);	1250	Safefree (cctx);
1077	}	1251	}
1078		1252
1079	/* wether this cctx should be destructed */	1253	/* wether this cctx should be destructed */
1080	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1254	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1081		1255
1082	static coro_cctx *	1256	static coro_cctx *
1083	cctx_get (pTHX)	1257	cctx_get (pTHX)
1084	{	1258	{
1085	while (expect_true (cctx_first))	1259	while (expect_true (cctx_first))
…		…
1092	return cctx;	1266	return cctx;
1093		1267
1094	cctx_destroy (cctx);	1268	cctx_destroy (cctx);
1095	}	1269	}
1096		1270
1097	return cctx_new ();	1271	return cctx_new_run ();
1098	}	1272	}
1099		1273
1100	static void	1274	static void
1101	cctx_put (coro_cctx *cctx)	1275	cctx_put (coro_cctx *cctx)
1102	{	1276	{
		1277	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1278
1103	/* free another cctx if overlimit */	1279	/* free another cctx if overlimit */
1104	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1280	if (expect_false (cctx_idle >= cctx_max_idle))
1105	{	1281	{
1106	coro_cctx *first = cctx_first;	1282	coro_cctx *first = cctx_first;
1107	cctx_first = first->next;	1283	cctx_first = first->next;
1108	--cctx_idle;	1284	--cctx_idle;
1109		1285
…		…
1130		1306
1131	if (expect_false (next->flags & CF_DESTROYED))	1307	if (expect_false (next->flags & CF_DESTROYED))
1132	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1308	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1133		1309
1134	#if !PERL_VERSION_ATLEAST (5,10,0)	1310	#if !PERL_VERSION_ATLEAST (5,10,0)
1135	if (expect_false (PL_lex_state != LEX_NOTPARSING)	1311	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1136	croak ("Coro::State::transfer called while parsing, but this is not supported");	1312	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1137	#endif	1313	#endif
1138	}	1314	}
1139	}	1315	}
1140		1316
1141	/* always use the TRANSFER macro */	1317	/* always use the TRANSFER macro */
1142	static void NOINLINE	1318	static void NOINLINE
1143	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)	1319	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1144	{	1320	{
1145	dSTACKLEVEL;	1321	dSTACKLEVEL;
1146	static volatile int has_throw;
1147		1322
1148	/* sometimes transfer is only called to set idle_sp */	1323	/* sometimes transfer is only called to set idle_sp */
1149	if (expect_false (!next))	1324	if (expect_false (!next))
1150	{	1325	{
1151	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1326	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1155	{	1330	{
1156	coro_cctx *prev__cctx;	1331	coro_cctx *prev__cctx;
1157		1332
1158	if (expect_false (prev->flags & CF_NEW))	1333	if (expect_false (prev->flags & CF_NEW))
1159	{	1334	{
1160	/* create a new empty context */	1335	/* create a new empty/source context */
1161	Newz (0, prev->cctx, 1, coro_cctx);	1336	prev->cctx = cctx_new_empty ();
1162	prev->flags &= ~CF_NEW;	1337	prev->flags &= ~CF_NEW;
1163	prev->flags \|= CF_RUNNING;	1338	prev->flags \|= CF_RUNNING;
1164	}	1339	}
1165		1340
1166	prev->flags &= ~CF_RUNNING;	1341	prev->flags &= ~CF_RUNNING;
…		…
1181	else	1356	else
1182	load_perl (aTHX_ next);	1357	load_perl (aTHX_ next);
1183		1358
1184	prev__cctx = prev->cctx;	1359	prev__cctx = prev->cctx;
1185		1360
1186	/* possibly "free" the cctx */	1361	/* possibly untie and reuse the cctx */
1187	if (expect_true (	1362	if (expect_true (
1188	prev__cctx->idle_sp == STACKLEVEL	1363	prev__cctx->idle_sp == STACKLEVEL
1189	&& !(prev__cctx->flags & CC_TRACE)	1364	&& !(prev__cctx->flags & CC_TRACE)
1190	&& !force_cctx	1365	&& !force_cctx
1191	))	1366	))
1192	{	1367	{
1193	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1368	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1194	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1369	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1195		1370
1196	prev->cctx = 0;	1371	prev->cctx = 0;
1197		1372
1198	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1373	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1199	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1374	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1207	++next->usecount;	1382	++next->usecount;
1208		1383
1209	if (expect_true (!next->cctx))	1384	if (expect_true (!next->cctx))
1210	next->cctx = cctx_get (aTHX);	1385	next->cctx = cctx_get (aTHX);
1211		1386
1212	has_throw = !!next->throw;	1387	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1388	transfer_next = next;
1213		1389
1214	if (expect_false (prev__cctx != next->cctx))	1390	if (expect_false (prev__cctx != next->cctx))
1215	{	1391	{
1216	prev__cctx->top_env = PL_top_env;	1392	prev__cctx->top_env = PL_top_env;
1217	PL_top_env = next->cctx->top_env;	1393	PL_top_env = next->cctx->top_env;
1218	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1394	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1219	}	1395	}
1220		1396
1221	free_coro_mortal (aTHX);	1397	transfer_tail (aTHX);
1222	UNLOCK;
1223
1224	if (expect_false (has_throw))
1225	{
1226	struct coro *coro = SvSTATE (coro_current);
1227
1228	if (coro->throw)
1229	{
1230	SV *exception = coro->throw;
1231	coro->throw = 0;
1232	sv_setsv (ERRSV, exception);
1233	croak (0);
1234	}
1235	}
1236	}	1398	}
1237	}	1399	}
1238
1239	struct transfer_args
1240	{
1241	struct coro prev, next;
1242	};
1243		1400
1244	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))	1401	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1245	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1402	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1246		1403
1247	/ high level stuff ******************************************************/	1404	/ high level stuff ******************************************************/
…		…
1273	croak ("FATAL: tried to destroy currently running coroutine");	1430	croak ("FATAL: tried to destroy currently running coroutine");
1274		1431
1275	save_perl (aTHX_ &temp);	1432	save_perl (aTHX_ &temp);
1276	load_perl (aTHX_ coro);	1433	load_perl (aTHX_ coro);
1277		1434
1278	coro_destroy (aTHX_ coro);	1435	coro_destruct (aTHX_ coro);
1279		1436
1280	load_perl (aTHX_ &temp);	1437	load_perl (aTHX_ &temp);
1281		1438
1282	coro->slot = 0;	1439	coro->slot = 0;
1283	}	1440	}
…		…
1371	static int	1528	static int
1372	api_ready (SV *coro_sv)	1529	api_ready (SV *coro_sv)
1373	{	1530	{
1374	dTHX;	1531	dTHX;
1375	struct coro *coro;	1532	struct coro *coro;
		1533	SV *sv_hook;
		1534	void (*xs_hook)(void);
1376		1535
1377	if (SvROK (coro_sv))	1536	if (SvROK (coro_sv))
1378	coro_sv = SvRV (coro_sv);	1537	coro_sv = SvRV (coro_sv);
1379		1538
1380	coro = SvSTATE (coro_sv);	1539	coro = SvSTATE (coro_sv);
…		…
1383	return 0;	1542	return 0;
1384		1543
1385	coro->flags \|= CF_READY;	1544	coro->flags \|= CF_READY;
1386		1545
1387	LOCK;	1546	LOCK;
		1547
		1548	sv_hook = coro_nready ? 0 : coro_readyhook;
		1549	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1550
1388	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1551	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1389	++coro_nready;	1552	++coro_nready;
		1553
1390	UNLOCK;	1554	UNLOCK;
		1555
		1556	if (sv_hook)
		1557	{
		1558	dSP;
		1559
		1560	ENTER;
		1561	SAVETMPS;
		1562
		1563	PUSHMARK (SP);
		1564	PUTBACK;
		1565	call_sv (sv_hook, G_DISCARD);
		1566	SPAGAIN;
		1567
		1568	FREETMPS;
		1569	LEAVE;
		1570	}
		1571
		1572	if (xs_hook)
		1573	xs_hook ();
1391		1574
1392	return 1;	1575	return 1;
1393	}	1576	}
1394		1577
1395	static int	1578	static int
1396	api_is_ready (SV *coro_sv)	1579	api_is_ready (SV *coro_sv)
1397	{	1580	{
1398	dTHX;	1581	dTHX;
		1582
1399	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1583	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1400	}	1584	}
1401		1585
1402	static void	1586	INLINE void
1403	prepare_schedule (pTHX_ struct transfer_args *ta)	1587	prepare_schedule (pTHX_ struct transfer_args *ta)
1404	{	1588	{
1405	SV prev_sv, next_sv;	1589	SV prev_sv, next_sv;
1406		1590
1407	for (;;)	1591	for (;;)
…		…
1433	/* cannot transfer to destroyed coros, skip and look for next */	1617	/* cannot transfer to destroyed coros, skip and look for next */
1434	if (expect_false (ta->next->flags & CF_DESTROYED))	1618	if (expect_false (ta->next->flags & CF_DESTROYED))
1435	{	1619	{
1436	UNLOCK;	1620	UNLOCK;
1437	SvREFCNT_dec (next_sv);	1621	SvREFCNT_dec (next_sv);
1438	/* coro_nready is already taken care of by destroy */	1622	/* coro_nready has already been taken care of by destroy */
1439	continue;	1623	continue;
1440	}	1624	}
1441		1625
1442	--coro_nready;	1626	--coro_nready;
1443	UNLOCK;	1627	UNLOCK;
…		…
1446		1630
1447	/* free this only after the transfer */	1631	/* free this only after the transfer */
1448	prev_sv = SvRV (coro_current);	1632	prev_sv = SvRV (coro_current);
1449	ta->prev = SvSTATE (prev_sv);	1633	ta->prev = SvSTATE (prev_sv);
1450	TRANSFER_CHECK (*ta);	1634	TRANSFER_CHECK (*ta);
1451	assert (ta->next->flags & CF_READY);	1635	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1452	ta->next->flags &= ~CF_READY;	1636	ta->next->flags &= ~CF_READY;
1453	SvRV_set (coro_current, next_sv);	1637	SvRV_set (coro_current, next_sv);
1454		1638
1455	LOCK;	1639	LOCK;
1456	free_coro_mortal (aTHX);	1640	free_coro_mortal (aTHX);
1457	coro_mortal = prev_sv;	1641	coro_mortal = prev_sv;
1458	UNLOCK;	1642	UNLOCK;
1459	}	1643	}
1460		1644
1461	static void	1645	INLINE void
1462	prepare_cede (pTHX_ struct transfer_args *ta)	1646	prepare_cede (pTHX_ struct transfer_args *ta)
1463	{	1647	{
1464	api_ready (coro_current);	1648	api_ready (coro_current);
1465	prepare_schedule (aTHX_ ta);	1649	prepare_schedule (aTHX_ ta);
1466	}	1650	}
…		…
1528	struct coro *coro = SvSTATE (coro_sv);	1712	struct coro *coro = SvSTATE (coro_sv);
1529		1713
1530	if (flags & CC_TRACE)	1714	if (flags & CC_TRACE)
1531	{	1715	{
1532	if (!coro->cctx)	1716	if (!coro->cctx)
1533	coro->cctx = cctx_new ();	1717	coro->cctx = cctx_new_run ();
1534	else if (!(coro->cctx->flags & CC_TRACE))	1718	else if (!(coro->cctx->flags & CC_TRACE))
1535	croak ("cannot enable tracing on coroutine with custom stack");	1719	croak ("cannot enable tracing on coroutine with custom stack");
1536		1720
1537	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1721	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1538	}	1722	}
…		…
1545	else	1729	else
1546	coro->slot->runops = RUNOPS_DEFAULT;	1730	coro->slot->runops = RUNOPS_DEFAULT;
1547	}	1731	}
1548	}	1732	}
1549		1733
		1734	#if 0
		1735	static int
		1736	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1737	{
		1738	AV *padlist;
		1739	AV av = (AV )mg->mg_obj;
		1740
		1741	abort ();
		1742
		1743	return 0;
		1744	}
		1745
		1746	static MGVTBL coro_gensub_vtbl = {
		1747	0, 0, 0, 0,
		1748	coro_gensub_free
		1749	};
		1750	#endif
		1751
		1752	/*****************************************************************************/
		1753	/* PerlIO::cede */
		1754
		1755	typedef struct
		1756	{
		1757	PerlIOBuf base;
		1758	NV next, every;
		1759	} PerlIOCede;
		1760
		1761	static IV
		1762	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1763	{
		1764	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1765
		1766	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1767	self->next = nvtime () + self->every;
		1768
		1769	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1770	}
		1771
		1772	static SV *
		1773	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1774	{
		1775	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1776
		1777	return newSVnv (self->every);
		1778	}
		1779
		1780	static IV
		1781	PerlIOCede_flush (pTHX_ PerlIO *f)
		1782	{
		1783	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1784	double now = nvtime ();
		1785
		1786	if (now >= self->next)
		1787	{
		1788	api_cede ();
		1789	self->next = now + self->every;
		1790	}
		1791
		1792	return PerlIOBuf_flush (aTHX_ f);
		1793	}
		1794
		1795	static PerlIO_funcs PerlIO_cede =
		1796	{
		1797	sizeof(PerlIO_funcs),
		1798	"cede",
		1799	sizeof(PerlIOCede),
		1800	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1801	PerlIOCede_pushed,
		1802	PerlIOBuf_popped,
		1803	PerlIOBuf_open,
		1804	PerlIOBase_binmode,
		1805	PerlIOCede_getarg,
		1806	PerlIOBase_fileno,
		1807	PerlIOBuf_dup,
		1808	PerlIOBuf_read,
		1809	PerlIOBuf_unread,
		1810	PerlIOBuf_write,
		1811	PerlIOBuf_seek,
		1812	PerlIOBuf_tell,
		1813	PerlIOBuf_close,
		1814	PerlIOCede_flush,
		1815	PerlIOBuf_fill,
		1816	PerlIOBase_eof,
		1817	PerlIOBase_error,
		1818	PerlIOBase_clearerr,
		1819	PerlIOBase_setlinebuf,
		1820	PerlIOBuf_get_base,
		1821	PerlIOBuf_bufsiz,
		1822	PerlIOBuf_get_ptr,
		1823	PerlIOBuf_get_cnt,
		1824	PerlIOBuf_set_ptrcnt,
		1825	};
		1826
		1827	/*****************************************************************************/
		1828
		1829	static const CV ssl_cv; / for quick consistency check */
		1830
		1831	static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
		1832	static SV *ssl_arg0;
		1833	static SV *ssl_arg1;
		1834
		1835	/* this restores the stack in the case we patched the entersub, to */
		1836	/* recreate the stack frame as perl will on following calls */
		1837	/* since entersub cleared the stack */
		1838	static OP *
		1839	pp_restore (pTHX)
		1840	{
		1841	dSP;
		1842
		1843	PUSHMARK (SP);
		1844
		1845	EXTEND (SP, 3);
		1846	if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
		1847	if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
		1848	PUSHs ((SV *)CvGV (ssl_cv));
		1849
		1850	RETURNOP (ssl_restore.op_first);
		1851	}
		1852
		1853	/* declare prototype */
		1854	XS(XS_Coro__State__set_stacklevel);
		1855
		1856	static OP *
		1857	pp_set_stacklevel (pTHX)
		1858	{
		1859	dSP;
		1860	struct transfer_args ta;
		1861	SV **arg = PL_stack_base + TOPMARK + 1;
		1862	int items = SP - arg; /* args without function object */
		1863
		1864	/* do a quick consistency check on the "function" object, and if it isn't */
		1865	/* for us, divert to the real entersub */
		1866	if (SvTYPE (sp) != SVt_PVGV \|\| CvXSUB (GvCV (sp)) != XS_Coro__State__set_stacklevel)
		1867	return PL_ppaddr[OP_ENTERSUB](aTHX);
		1868
		1869	/* pop args */
		1870	SP = PL_stack_base + POPMARK;
		1871
		1872	if (!(PL_op->op_flags & OPf_STACKED))
		1873	{
		1874	/* ampersand-form of call, use @_ instead of stack */
		1875	AV *av = GvAV (PL_defgv);
		1876	arg = AvARRAY (av);
		1877	items = AvFILLp (av) + 1;
		1878	}
		1879
		1880	PUTBACK;
		1881	switch (PL_op->op_private & 7)
		1882	{
		1883	case 0:
		1884	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
		1885	break;
		1886
		1887	case 1:
		1888	if (items != 2)
		1889	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
		1890
		1891	prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
		1892	break;
		1893
		1894	case 2:
		1895	prepare_schedule (aTHX_ &ta);
		1896	break;
		1897
		1898	case 3:
		1899	prepare_cede (aTHX_ &ta);
		1900	break;
		1901
		1902	case 4:
		1903	if (!prepare_cede_notself (aTHX_ &ta))
		1904	goto skip;
		1905
		1906	break;
		1907	}
		1908
		1909	TRANSFER (ta, 0);
		1910	SPAGAIN;
		1911
		1912	skip:
		1913	PUTBACK;
		1914	SSL_TAIL;
		1915	SPAGAIN;
		1916	RETURN;
		1917	}
		1918
1550	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1919	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1551		1920
1552	PROTOTYPES: DISABLE	1921	PROTOTYPES: DISABLE
1553
1554	BOOT:
1555	{
1556	#ifdef USE_ITHREADS
1557	MUTEX_INIT (&coro_mutex);
1558	#endif
1559	BOOT_PAGESIZE;
1560
1561	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1562	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1563
1564	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
1565	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1566	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
1567	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1568
1569	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1570	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1571	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1572
1573	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1574
1575	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1576	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1577	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1578	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1579
1580	main_mainstack = PL_mainstack;
1581	main_top_env = PL_top_env;
1582
1583	while (main_top_env->je_prev)
1584	main_top_env = main_top_env->je_prev;
1585
1586	coroapi.ver = CORO_API_VERSION;
1587	coroapi.rev = CORO_API_REVISION;
1588	coroapi.transfer = api_transfer;
1589
1590	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1591	}
1592
1593	SV *
1594	new (char *klass, ...)
1595	CODE:
1596	{
1597	struct coro *coro;
1598	MAGIC *mg;
1599	HV *hv;
1600	int i;
1601
1602	Newz (0, coro, 1, struct coro);
1603	coro->args = newAV ();
1604	coro->flags = CF_NEW;
1605
1606	if (coro_first) coro_first->prev = coro;
1607	coro->next = coro_first;
1608	coro_first = coro;
1609
1610	coro->hv = hv = newHV ();
1611	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
1612	mg->mg_flags \|= MGf_DUP;
1613	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1614
1615	av_extend (coro->args, items - 1);
1616	for (i = 1; i < items; i++)
1617	av_push (coro->args, newSVsv (ST (i)));
1618	}
1619	OUTPUT:
1620	RETVAL
1621		1922
1622	# these not obviously related functions are all rolled into the same xs	1923	# these not obviously related functions are all rolled into the same xs
1623	# function to increase chances that they all will call transfer with the same	1924	# function to increase chances that they all will call transfer with the same
1624	# stack offset	1925	# stack offset
1625	void	1926	void
…		…
1629	Coro::schedule = 2	1930	Coro::schedule = 2
1630	Coro::cede = 3	1931	Coro::cede = 3
1631	Coro::cede_notself = 4	1932	Coro::cede_notself = 4
1632	CODE:	1933	CODE:
1633	{	1934	{
1634	struct transfer_args ta;	1935	assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1635		1936
1636	PUTBACK;	1937	/* we patch the op, and then re-run the whole call */
1637	switch (ix)	1938	/* we have to put some dummy argument on the stack for this to work */
		1939	/* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
		1940	ssl_restore.op_next = (OP *)&ssl_restore;
		1941	ssl_restore.op_type = OP_NULL;
		1942	ssl_restore.op_ppaddr = pp_restore;
		1943	ssl_restore.op_first = PL_op;
		1944
		1945	ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
		1946	ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
		1947
		1948	PL_op->op_ppaddr = pp_set_stacklevel;
		1949	PL_op->op_private = PL_op->op_private & ~7 \| ix; /* we potentially share our private flags with entersub */
		1950
		1951	PL_op = (OP *)&ssl_restore;
		1952	}
		1953
		1954	BOOT:
		1955	{
		1956	#ifdef USE_ITHREADS
		1957	MUTEX_INIT (&coro_lock);
		1958	# if CORO_PTHREAD
		1959	coro_thx = PERL_GET_CONTEXT;
		1960	# endif
		1961	#endif
		1962	BOOT_PAGESIZE;
		1963
		1964	ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
		1965
		1966	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1967	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1968
		1969	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1970	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1971	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1972
		1973	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1974	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1975	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1976
		1977	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1978
		1979	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1980	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1981	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1982	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
		1983
		1984	main_mainstack = PL_mainstack;
		1985	main_top_env = PL_top_env;
		1986
		1987	while (main_top_env->je_prev)
		1988	main_top_env = main_top_env->je_prev;
		1989
		1990	coroapi.ver = CORO_API_VERSION;
		1991	coroapi.rev = CORO_API_REVISION;
		1992	coroapi.transfer = api_transfer;
		1993
1638	{	1994	{
1639	case 0:	1995	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1640	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1641	ta.next = 0;
1642	break;
1643		1996
1644	case 1:	1997	if (!svp) croak ("Time::HiRes is required");
1645	if (items != 2)	1998	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1646	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1647		1999
1648	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	2000	nvtime = INT2PTR (double ()(), SvIV (svp));
1649	break;
1650
1651	case 2:
1652	prepare_schedule (aTHX_ &ta);
1653	break;
1654
1655	case 3:
1656	prepare_cede (aTHX_ &ta);
1657	break;
1658
1659	case 4:
1660	if (!prepare_cede_notself (aTHX_ &ta))
1661	XSRETURN_EMPTY;
1662
1663	break;
1664	}	2001	}
1665	SPAGAIN;
1666		2002
1667	BARRIER;	2003	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1668	PUTBACK;
1669	TRANSFER (ta, 0);
1670	SPAGAIN; /* might be the sp of a different coroutine now */
1671	/* be extra careful not to ever do anything after TRANSFER */
1672	}	2004	}
		2005
		2006	SV *
		2007	new (char *klass, ...)
		2008	CODE:
		2009	{
		2010	struct coro *coro;
		2011	MAGIC *mg;
		2012	HV *hv;
		2013	int i;
		2014
		2015	Newz (0, coro, 1, struct coro);
		2016	coro->args = newAV ();
		2017	coro->flags = CF_NEW;
		2018
		2019	if (coro_first) coro_first->prev = coro;
		2020	coro->next = coro_first;
		2021	coro_first = coro;
		2022
		2023	coro->hv = hv = newHV ();
		2024	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		2025	mg->mg_flags \|= MGf_DUP;
		2026	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		2027
		2028	av_extend (coro->args, items - 1);
		2029	for (i = 1; i < items; i++)
		2030	av_push (coro->args, newSVsv (ST (i)));
		2031	}
		2032	OUTPUT:
		2033	RETVAL
1673		2034
1674	bool	2035	bool
1675	_destroy (SV *coro_sv)	2036	_destroy (SV *coro_sv)
1676	CODE:	2037	CODE:
1677	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	2038	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1678	OUTPUT:	2039	OUTPUT:
1679	RETVAL	2040	RETVAL
1680		2041
1681	void	2042	void
1682	_exit (code)	2043	_exit (int code)
1683	int code
1684	PROTOTYPE: $	2044	PROTOTYPE: $
1685	CODE:	2045	CODE:
1686	_exit (code);	2046	_exit (code);
1687		2047
1688	int	2048	int
1689	cctx_stacksize (int new_stacksize = 0)	2049	cctx_stacksize (int new_stacksize = 0)
1690	CODE:	2050	CODE:
1691	RETVAL = coro_stacksize;	2051	RETVAL = cctx_stacksize;
1692	if (new_stacksize)	2052	if (new_stacksize)
		2053	{
1693	coro_stacksize = new_stacksize;	2054	cctx_stacksize = new_stacksize;
		2055	++cctx_gen;
		2056	}
		2057	OUTPUT:
		2058	RETVAL
		2059
		2060	int
		2061	cctx_max_idle (int max_idle = 0)
		2062	CODE:
		2063	RETVAL = cctx_max_idle;
		2064	if (max_idle > 1)
		2065	cctx_max_idle = max_idle;
1694	OUTPUT:	2066	OUTPUT:
1695	RETVAL	2067	RETVAL
1696		2068
1697	int	2069	int
1698	cctx_count ()	2070	cctx_count ()
…		…
1722	call (Coro::State coro, SV *coderef)	2094	call (Coro::State coro, SV *coderef)
1723	ALIAS:	2095	ALIAS:
1724	eval = 1	2096	eval = 1
1725	CODE:	2097	CODE:
1726	{	2098	{
1727	if (coro->mainstack)	2099	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1728	{	2100	{
1729	struct coro temp;	2101	struct coro temp;
1730		2102
1731	if (!(coro->flags & CF_RUNNING))	2103	if (!(coro->flags & CF_RUNNING))
1732	{	2104	{
…		…
1776	RETVAL = boolSV (coro->flags & ix);	2148	RETVAL = boolSV (coro->flags & ix);
1777	OUTPUT:	2149	OUTPUT:
1778	RETVAL	2150	RETVAL
1779		2151
1780	void	2152	void
		2153	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2154	PROTOTYPE: $;$
		2155	CODE:
		2156	SvREFCNT_dec (self->throw);
		2157	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2158
		2159	void
1781	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2160	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1782		2161
1783	SV *	2162	SV *
1784	has_stack (Coro::State coro)	2163	has_cctx (Coro::State coro)
1785	PROTOTYPE: $	2164	PROTOTYPE: $
1786	CODE:	2165	CODE:
1787	RETVAL = boolSV (!!coro->cctx);	2166	RETVAL = boolSV (!!coro->cctx);
1788	OUTPUT:	2167	OUTPUT:
1789	RETVAL	2168	RETVAL
…		…
1794	CODE:	2173	CODE:
1795	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2174	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1796	OUTPUT:	2175	OUTPUT:
1797	RETVAL	2176	RETVAL
1798		2177
1799	IV	2178	UV
1800	rss (Coro::State coro)	2179	rss (Coro::State coro)
1801	PROTOTYPE: $	2180	PROTOTYPE: $
1802	ALIAS:	2181	ALIAS:
1803	usecount = 1	2182	usecount = 1
1804	CODE:	2183	CODE:
…		…
1814	force_cctx ()	2193	force_cctx ()
1815	CODE:	2194	CODE:
1816	struct coro *coro = SvSTATE (coro_current);	2195	struct coro *coro = SvSTATE (coro_current);
1817	coro->cctx->idle_sp = 0;	2196	coro->cctx->idle_sp = 0;
1818		2197
1819	MODULE = Coro::State PACKAGE = Coro
1820
1821	BOOT:
1822	{
1823	int i;
1824
1825	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1826	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1827	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1828
1829	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1830	SvREADONLY_on (coro_current);
1831
1832	coro_stash = gv_stashpv ("Coro", TRUE);
1833
1834	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1835	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1836	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1837	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1838	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1839	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1840
1841	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1842	coro_ready[i] = newAV ();
1843
1844	{
1845	SV *sv = perl_get_sv ("Coro::API", TRUE);
1846	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1847
1848	coroapi.schedule = api_schedule;
1849	coroapi.cede = api_cede;
1850	coroapi.cede_notself = api_cede_notself;
1851	coroapi.ready = api_ready;
1852	coroapi.is_ready = api_is_ready;
1853	coroapi.nready = &coro_nready;
1854	coroapi.current = coro_current;
1855
1856	GCoroAPI = &coroapi;
1857	sv_setiv (sv, (IV)&coroapi);
1858	SvREADONLY_on (sv);
1859	}
1860	}
1861
1862	void
1863	_set_current (SV *current)
1864	PROTOTYPE: $
1865	CODE:
1866	SvREFCNT_dec (SvRV (coro_current));
1867	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1868
1869	int
1870	prio (Coro::State coro, int newprio = 0)
1871	ALIAS:
1872	nice = 1
1873	CODE:
1874	{
1875	RETVAL = coro->prio;
1876
1877	if (items > 1)
1878	{
1879	if (ix)
1880	newprio = coro->prio - newprio;
1881
1882	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1883	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1884
1885	coro->prio = newprio;
1886	}
1887	}
1888	OUTPUT:
1889	RETVAL
1890
1891	SV *
1892	ready (SV *self)
1893	PROTOTYPE: $
1894	CODE:
1895	RETVAL = boolSV (api_ready (self));
1896	OUTPUT:
1897	RETVAL
1898
1899	int
1900	nready (...)
1901	PROTOTYPE:
1902	CODE:
1903	RETVAL = coro_nready;
1904	OUTPUT:
1905	RETVAL
1906
1907	void
1908	throw (Coro::State self, SV *throw = &PL_sv_undef)
1909	PROTOTYPE: $;$
1910	CODE:
1911	SvREFCNT_dec (self->throw);
1912	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1913
1914	void	2198	void
1915	swap_defsv (Coro::State self)	2199	swap_defsv (Coro::State self)
1916	PROTOTYPE: $	2200	PROTOTYPE: $
1917	ALIAS:	2201	ALIAS:
1918	swap_defav = 1	2202	swap_defav = 1
…		…
1925	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;	2209	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
1926		2210
1927	SV tmp = src; src = dst; *dst = tmp;	2211	SV tmp = src; src = dst; *dst = tmp;
1928	}	2212	}
1929		2213
		2214	MODULE = Coro::State PACKAGE = Coro
		2215
		2216	BOOT:
		2217	{
		2218	int i;
		2219
		2220	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2221	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2222	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
		2223
		2224	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
		2225	SvREADONLY_on (coro_current);
		2226
		2227	coro_stash = gv_stashpv ("Coro", TRUE);
		2228
		2229	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
		2230	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		2231	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		2232	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
		2233	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		2234	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
		2235
		2236	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		2237	coro_ready[i] = newAV ();
		2238
		2239	{
		2240	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
		2241
		2242	coroapi.schedule = api_schedule;
		2243	coroapi.cede = api_cede;
		2244	coroapi.cede_notself = api_cede_notself;
		2245	coroapi.ready = api_ready;
		2246	coroapi.is_ready = api_is_ready;
		2247	coroapi.nready = &coro_nready;
		2248	coroapi.current = coro_current;
		2249
		2250	GCoroAPI = &coroapi;
		2251	sv_setiv (sv, (IV)&coroapi);
		2252	SvREADONLY_on (sv);
		2253	}
		2254	}
		2255
		2256	void
		2257	_set_current (SV *current)
		2258	PROTOTYPE: $
		2259	CODE:
		2260	SvREFCNT_dec (SvRV (coro_current));
		2261	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2262
		2263	void
		2264	_set_readyhook (SV *hook)
		2265	PROTOTYPE: $
		2266	CODE:
		2267	LOCK;
		2268	SvREFCNT_dec (coro_readyhook);
		2269	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2270	UNLOCK;
		2271
		2272	int
		2273	prio (Coro::State coro, int newprio = 0)
		2274	ALIAS:
		2275	nice = 1
		2276	CODE:
		2277	{
		2278	RETVAL = coro->prio;
		2279
		2280	if (items > 1)
		2281	{
		2282	if (ix)
		2283	newprio = coro->prio - newprio;
		2284
		2285	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		2286	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		2287
		2288	coro->prio = newprio;
		2289	}
		2290	}
		2291	OUTPUT:
		2292	RETVAL
		2293
		2294	SV *
		2295	ready (SV *self)
		2296	PROTOTYPE: $
		2297	CODE:
		2298	RETVAL = boolSV (api_ready (self));
		2299	OUTPUT:
		2300	RETVAL
		2301
		2302	int
		2303	nready (...)
		2304	PROTOTYPE:
		2305	CODE:
		2306	RETVAL = coro_nready;
		2307	OUTPUT:
		2308	RETVAL
		2309
1930	# for async_pool speedup	2310	# for async_pool speedup
1931	void	2311	void
1932	_pool_1 (SV *cb)	2312	_pool_1 (SV *cb)
1933	CODE:	2313	CODE:
1934	{	2314	{
…		…
1939	AV *invoke_av;	2319	AV *invoke_av;
1940	int i, len;	2320	int i, len;
1941		2321
1942	if (!invoke)	2322	if (!invoke)
1943	{	2323	{
1944	SvREFCNT_dec (PL_diehook); PL_diehook = 0;	2324	SV *old = PL_diehook;
		2325	PL_diehook = 0;
		2326	SvREFCNT_dec (old);
1945	croak ("\3async_pool terminate\2\n");	2327	croak ("\3async_pool terminate\2\n");
1946	}	2328	}
1947		2329
1948	SvREFCNT_dec (coro->saved_deffh);	2330	SvREFCNT_dec (coro->saved_deffh);
1949	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2331	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1950		2332
1951	hv_store (hv, "desc", sizeof ("desc") - 1,	2333	hv_store (hv, "desc", sizeof ("desc") - 1,
1952	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2334	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1953		2335
1954	invoke_av = (AV *)SvRV (invoke);	2336	invoke_av = (AV *)SvRV (invoke);
…		…
1958		2340
1959	if (len > 0)	2341	if (len > 0)
1960	{	2342	{
1961	av_fill (defav, len - 1);	2343	av_fill (defav, len - 1);
1962	for (i = 0; i < len; ++i)	2344	for (i = 0; i < len; ++i)
1963	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2345	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1964	}	2346	}
1965		2347
1966	SvREFCNT_dec (invoke);	2348	SvREFCNT_dec (invoke);
1967	}	2349	}
1968		2350
…		…
1975	sv_setsv (cb, &PL_sv_undef);	2357	sv_setsv (cb, &PL_sv_undef);
1976		2358
1977	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2359	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1978	coro->saved_deffh = 0;	2360	coro->saved_deffh = 0;
1979		2361
1980	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2362	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1981	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2363	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1982	{	2364	{
1983	SvREFCNT_dec (PL_diehook); PL_diehook = 0;	2365	SV *old = PL_diehook;
		2366	PL_diehook = 0;
		2367	SvREFCNT_dec (old);
1984	croak ("\3async_pool terminate\2\n");	2368	croak ("\3async_pool terminate\2\n");
1985	}	2369	}
1986		2370
1987	av_clear (GvAV (PL_defgv));	2371	av_clear (GvAV (PL_defgv));
1988	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2372	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
…		…
1994	api_trace (coro_current, 0);	2378	api_trace (coro_current, 0);
1995		2379
1996	av_push (av_async_pool, newSVsv (coro_current));	2380	av_push (av_async_pool, newSVsv (coro_current));
1997	}	2381	}
1998		2382
		2383	#if 0
		2384
		2385	void
		2386	_generator_call (...)
		2387	PROTOTYPE: @
		2388	PPCODE:
		2389	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2390	xxxx
		2391	abort ();
		2392
		2393	SV *
		2394	gensub (SV *sub, ...)
		2395	PROTOTYPE: &;@
		2396	CODE:
		2397	{
		2398	struct coro *coro;
		2399	MAGIC *mg;
		2400	CV *xcv;
		2401	CV ncv = (CV )newSV_type (SVt_PVCV);
		2402	int i;
		2403
		2404	CvGV (ncv) = CvGV (cv);
		2405	CvFILE (ncv) = CvFILE (cv);
		2406
		2407	Newz (0, coro, 1, struct coro);
		2408	coro->args = newAV ();
		2409	coro->flags = CF_NEW;
		2410
		2411	av_extend (coro->args, items - 1);
		2412	for (i = 1; i < items; i++)
		2413	av_push (coro->args, newSVsv (ST (i)));
		2414
		2415	CvISXSUB_on (ncv);
		2416	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2417
		2418	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2419
		2420	CvXSUB (ncv) = CvXSUB (xcv);
		2421	CvANON_on (ncv);
		2422
		2423	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2424	RETVAL = newRV_noinc ((SV *)ncv);
		2425	}
		2426	OUTPUT:
		2427	RETVAL
		2428
		2429	#endif
		2430
1999		2431
2000	MODULE = Coro::State PACKAGE = Coro::AIO	2432	MODULE = Coro::State PACKAGE = Coro::AIO
2001		2433
2002	SV *	2434	void
2003	_get_state ()	2435	_get_state (SV *self)
2004	CODE:	2436	PPCODE:
2005	{	2437	{
2006	struct io_state *data;	2438	AV *defav = GvAV (PL_defgv);
2007		2439	AV *av = newAV ();
		2440	int i;
2008	RETVAL = newSV (sizeof (struct io_state));	2441	SV *data_sv = newSV (sizeof (struct io_state));
2009	data = (struct io_state *)SvPVX (RETVAL);	2442	struct io_state data = (struct io_state )SvPVX (data_sv);
2010	SvCUR_set (RETVAL, sizeof (struct io_state));	2443	SvCUR_set (data_sv, sizeof (struct io_state));
2011	SvPOK_only (RETVAL);	2444	SvPOK_only (data_sv);
2012		2445
2013	data->errorno = errno;	2446	data->errorno = errno;
2014	data->laststype = PL_laststype;	2447	data->laststype = PL_laststype;
2015	data->laststatval = PL_laststatval;	2448	data->laststatval = PL_laststatval;
2016	data->statcache = PL_statcache;	2449	data->statcache = PL_statcache;
		2450
		2451	av_extend (av, AvFILLp (defav) + 1 + 1);
		2452
		2453	for (i = 0; i <= AvFILLp (defav); ++i)
		2454	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2455
		2456	av_push (av, data_sv);
		2457
		2458	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2459
		2460	api_ready (self);
2017	}	2461	}
2018	OUTPUT:
2019	RETVAL
2020		2462
2021	void	2463	void
2022	_set_state (char *data_)	2464	_set_state (SV *state)
2023	PROTOTYPE: $	2465	PROTOTYPE: $
2024	CODE:	2466	PPCODE:
2025	{	2467	{
2026	struct io_state data = (void )data_;	2468	AV av = (AV )SvRV (state);
		2469	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2470	int i;
2027		2471
2028	errno = data->errorno;	2472	errno = data->errorno;
2029	PL_laststype = data->laststype;	2473	PL_laststype = data->laststype;
2030	PL_laststatval = data->laststatval;	2474	PL_laststatval = data->laststatval;
2031	PL_statcache = data->statcache;	2475	PL_statcache = data->statcache;
2032	}
2033		2476
		2477	EXTEND (SP, AvFILLp (av));
		2478	for (i = 0; i < AvFILLp (av); ++i)
		2479	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2480	}
		2481
		2482
		2483	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2484
		2485	BOOT:
		2486	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2487
		2488	SV *
		2489	_schedule (...)
		2490	PROTOTYPE: @
		2491	CODE:
		2492	{
		2493	static int incede;
		2494
		2495	api_cede_notself ();
		2496
		2497	++incede;
		2498	while (coro_nready >= incede && api_cede ())
		2499	;
		2500
		2501	sv_setsv (sv_activity, &PL_sv_undef);
		2502	if (coro_nready >= incede)
		2503	{
		2504	PUSHMARK (SP);
		2505	PUTBACK;
		2506	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2507	SPAGAIN;
		2508	}
		2509
		2510	--incede;
		2511	}
		2512
		2513
		2514	MODULE = Coro::State PACKAGE = PerlIO::cede
		2515
		2516	BOOT:
		2517	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2518

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Comparing Coro/Coro/State.xs (file contents): Revision 1.228 by root, Sun Apr 6 17:51:15 2008 UTC vs. Revision 1.265 by root, Fri Nov 14 02:42:26 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.228 by root, Sun Apr 6 17:51:15 2008 UTC vs.
Revision 1.265 by root, Fri Nov 14 02:42:26 2008 UTC