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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.230 by root, Mon Apr 14 11:28:59 2008 UTC vs.
Revision 1.270 by root, Fri Nov 14 07:22:11 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	99	#endif
84		100
85	/* 5.11 */
86	#ifndef CxHASARGS
87	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
88	#endif
89
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)
93	#endif	104	#endif
94		105
…		…
105	# define CORO_PREFER_PERL_FUNCTIONS 0	116	# define CORO_PREFER_PERL_FUNCTIONS 0
106	#endif	117	#endif
107		118
108	/* The next macros try to return the current stack pointer, in an as	119	/* The next macros try to return the current stack pointer, in an as
109	* portable way as possible. */	120	* portable way as possible. */
110	#define dSTACKLEVEL volatile char stacklevel	121	#if __GNUC__ >= 4
111	#define STACKLEVEL ((void *)&stacklevel)	122	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)
		123	#else
		124	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel
		125	#endif
112		126
113	#define IN_DESTRUCT (PL_main_cv == Nullcv)	127	#define IN_DESTRUCT (PL_main_cv == Nullcv)
114		128
115	#if __GNUC__ >= 3	129	#if __GNUC__ >= 3
116	# define attribute(x) __attribute__(x)	130	# define attribute(x) __attribute__(x)
117	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
118	# define expect(expr,value) __builtin_expect ((expr),(value))	131	# define expect(expr,value) __builtin_expect ((expr),(value))
		132	# define INLINE static inline
119	#else	133	#else
120	# define attribute(x)	134	# define attribute(x)
121	# define BARRIER
122	# define expect(expr,value) (expr)	135	# define expect(expr,value) (expr)
		136	# define INLINE static
123	#endif	137	#endif
124		138
125	#define expect_false(expr) expect ((expr) != 0, 0)	139	#define expect_false(expr) expect ((expr) != 0, 0)
126	#define expect_true(expr) expect ((expr) != 0, 1)	140	#define expect_true(expr) expect ((expr) != 0, 1)
127		141
128	#define NOINLINE attribute ((noinline))	142	#define NOINLINE attribute ((noinline))
129		143
130	#include "CoroAPI.h"	144	#include "CoroAPI.h"
131		145
132	#ifdef USE_ITHREADS	146	#ifdef USE_ITHREADS
		147
133	static perl_mutex coro_mutex;	148	static perl_mutex coro_lock;
134	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	149	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
135	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	150	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		151	# if CORO_PTHREAD
		152	static void *coro_thx;
		153	# endif
		154
136	#else	155	#else
		156
137	# define LOCK (void)0	157	# define LOCK (void)0
138	# define UNLOCK (void)0	158	# define UNLOCK (void)0
		159
139	#endif	160	#endif
		161
		162	# undef LOCK
		163	# define LOCK (void)0
		164	# undef UNLOCK
		165	# define UNLOCK (void)0
140		166
141	/* helper storage struct for Coro::AIO */	167	/* helper storage struct for Coro::AIO */
142	struct io_state	168	struct io_state
143	{	169	{
		170	AV *res;
144	int errorno;	171	int errorno;
145	I32 laststype;	172	I32 laststype; /* U16 in 5.10.0 */
146	int laststatval;	173	int laststatval;
147	Stat_t statcache;	174	Stat_t statcache;
148	};	175	};
149		176
		177	static double (nvtime)(); / so why doesn't it take void? */
		178
		179	static U32 cctx_gen;
150	static size_t coro_stacksize = CORO_STACKSIZE;	180	static size_t cctx_stacksize = CORO_STACKSIZE;
151	static struct CoroAPI coroapi;	181	static struct CoroAPI coroapi;
152	static AV main_mainstack; / used to differentiate between $main and others */	182	static AV main_mainstack; / used to differentiate between $main and others */
153	static JMPENV *main_top_env;	183	static JMPENV *main_top_env;
154	static HV coro_state_stash, coro_stash;	184	static HV coro_state_stash, coro_stash;
155	static volatile SV coro_mortal; / will be freed after next transfer */	185	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		186	static volatile struct coro *transfer_next;
		187
		188	struct transfer_args
		189	{
		190	struct coro prev, next;
		191	};
156		192
157	static GV irsgv; / $/ */	193	static GV irsgv; / $/ */
158	static GV stdoutgv; / STDOUT /	194	static GV stdoutgv; / STDOUT /
159	static SV *rv_diehook;	195	static SV *rv_diehook;
160	static SV *rv_warnhook;	196	static SV *rv_warnhook;
…		…
162		198
163	/* async_pool helper stuff */	199	/* async_pool helper stuff */
164	static SV *sv_pool_rss;	200	static SV *sv_pool_rss;
165	static SV *sv_pool_size;	201	static SV *sv_pool_size;
166	static AV *av_async_pool;	202	static AV *av_async_pool;
		203
		204	/* Coro::AnyEvent */
		205	static SV *sv_activity;
167		206
168	static struct coro_cctx *cctx_first;	207	static struct coro_cctx *cctx_first;
169	static int cctx_count, cctx_idle;	208	static int cctx_count, cctx_idle;
170		209
171	enum {	210	enum {
…		…
189	void idle_sp; / sp of top-level transfer/schedule/cede call */	228	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 */	229	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
191	JMPENV *top_env;	230	JMPENV *top_env;
192	coro_context cctx;	231	coro_context cctx;
193		232
		233	U32 gen;
194	#if CORO_USE_VALGRIND	234	#if CORO_USE_VALGRIND
195	int valgrind_id;	235	int valgrind_id;
196	#endif	236	#endif
197	unsigned char flags;	237	unsigned char flags;
198	} coro_cctx;	238	} coro_cctx;
…		…
257	#define PRIO_IDLE -3	297	#define PRIO_IDLE -3
258	#define PRIO_MIN -4	298	#define PRIO_MIN -4
259		299
260	/* for Coro.pm */	300	/* for Coro.pm */
261	static SV *coro_current;	301	static SV *coro_current;
		302	static SV *coro_readyhook;
262	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	303	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
263	static int coro_nready;
264	static struct coro *coro_first;	304	static struct coro *coro_first;
		305	#define coro_nready coroapi.nready
265		306
266	/ lowlevel stuff ********************************************************/	307	/ lowlevel stuff ********************************************************/
267		308
268	static SV *	309	static SV *
269	coro_get_sv (pTHX_ const char *name, int create)	310	coro_get_sv (pTHX_ const char *name, int create)
…		…
309	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	350	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
310	#endif	351	#endif
311	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	352	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
312	--AvFILLp (padlist);	353	--AvFILLp (padlist);
313		354
314	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	355	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
315	av_store (newpadlist, 1, (SV *)newpad);	356	av_store (newpadlist, 1, (SV *)newpad);
316		357
317	return newpadlist;	358	return newpadlist;
318	}	359	}
319		360
…		…
349		390
350	/* casting is fun. */	391	/* casting is fun. */
351	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	392	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
352	free_padlist (aTHX_ padlist);	393	free_padlist (aTHX_ padlist);
353		394
		395	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
		396
354	return 0;	397	return 0;
355	}	398	}
356		399
357	#define CORO_MAGIC_type_cv PERL_MAGIC_ext	400	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
358	#define CORO_MAGIC_type_state PERL_MAGIC_ext	401	#define CORO_MAGIC_type_state PERL_MAGIC_ext
…		…
360	static MGVTBL coro_cv_vtbl = {	403	static MGVTBL coro_cv_vtbl = {
361	0, 0, 0, 0,	404	0, 0, 0, 0,
362	coro_cv_free	405	coro_cv_free
363	};	406	};
364		407
365	#define CORO_MAGIC(sv,type) \	408	#define CORO_MAGIC(sv, type) \
366	SvMAGIC (sv) \	409	SvMAGIC (sv) \
367	? SvMAGIC (sv)->mg_type == type \	410	? SvMAGIC (sv)->mg_type == type \
368	? SvMAGIC (sv) \	411	? SvMAGIC (sv) \
369	: mg_find (sv, type) \	412	: mg_find (sv, type) \
370	: 0	413	: 0
371		414
372	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	415	#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)	416	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
374		417
375	static struct coro *	418	INLINE struct coro *
376	SvSTATE_ (pTHX_ SV *coro)	419	SvSTATE_ (pTHX_ SV *coro)
377	{	420	{
378	HV *stash;	421	HV *stash;
379	MAGIC *mg;	422	MAGIC *mg;
380		423
…		…
408	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	451	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
409	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	452	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
410	else	453	else
411	{	454	{
412	#if CORO_PREFER_PERL_FUNCTIONS	455	#if CORO_PREFER_PERL_FUNCTIONS
413	/* this is probably cleaner, but also slower? */	456	/* this is probably cleaner? but also slower! */
		457	/* in practise, it seems to be less stable */
414	CV *cp = Perl_cv_clone (cv);	458	CV *cp = Perl_cv_clone (cv);
415	CvPADLIST (cv) = CvPADLIST (cp);	459	CvPADLIST (cv) = CvPADLIST (cp);
416	CvPADLIST (cp) = 0;	460	CvPADLIST (cp) = 0;
417	SvREFCNT_dec (cp);	461	SvREFCNT_dec (cp);
418	#else	462	#else
…		…
502		546
503	if (expect_true (CvDEPTH (cv)))	547	if (expect_true (CvDEPTH (cv)))
504	{	548	{
505	EXTEND (SP, 3);	549	EXTEND (SP, 3);
506	PUSHs ((SV *)CvPADLIST (cv));	550	PUSHs ((SV *)CvPADLIST (cv));
507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	551	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508	PUSHs ((SV *)cv);	552	PUSHs ((SV *)cv);
509		553
510	CvDEPTH (cv) = 0;	554	CvDEPTH (cv) = 0;
511	get_padlist (aTHX_ cv);	555	get_padlist (aTHX_ cv);
512	}	556	}
…		…
604		648
605	/*	649	/*
606	* destroy the stacks, the callchain etc...	650	* destroy the stacks, the callchain etc...
607	*/	651	*/
608	static void	652	static void
609	coro_destroy_stacks (pTHX)	653	coro_destruct_stacks (pTHX)
610	{	654	{
611	while (PL_curstackinfo->si_next)	655	while (PL_curstackinfo->si_next)
612	PL_curstackinfo = PL_curstackinfo->si_next;	656	PL_curstackinfo = PL_curstackinfo->si_next;
613		657
614	while (PL_curstackinfo)	658	while (PL_curstackinfo)
…		…
651	#undef VAR	695	#undef VAR
652	}	696	}
653	else	697	else
654	slot = coro->slot;	698	slot = coro->slot;
655		699
		700	if (slot)
		701	{
656	rss += sizeof (slot->curstackinfo);	702	rss += sizeof (slot->curstackinfo);
657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	703	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	704	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
659	rss += slot->tmps_max * sizeof (SV *);	705	rss += slot->tmps_max * sizeof (SV *);
660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	706	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661	rss += slot->scopestack_max * sizeof (I32);	707	rss += slot->scopestack_max * sizeof (I32);
662	rss += slot->savestack_max * sizeof (ANY);	708	rss += slot->savestack_max * sizeof (ANY);
663		709
664	#if !PERL_VERSION_ATLEAST (5,10,0)	710	#if !PERL_VERSION_ATLEAST (5,10,0)
665	rss += slot->retstack_max * sizeof (OP *);	711	rss += slot->retstack_max * sizeof (OP *);
666	#endif	712	#endif
		713	}
667	}	714	}
668		715
669	return rss;	716	return rss;
		717	}
		718
		719	/ set stacklevel support ************************************************/
		720
		721	/* we sometimes need to create the effect of pp_slf calling us */
		722	#define SLF_HEAD (void)0
		723	/* we sometimes need to create the effect of leaving via pp_slf */
		724	#define SLF_TAIL slf_tail (aTHX)
		725
		726	INLINE void
		727	slf_tail (pTHX)
		728	{
		729	dSP;
		730	SV **bot = SP;
		731
		732	int gimme = GIMME_V;
		733
		734	/* make sure we put something on the stack in scalar context */
		735	if (gimme == G_SCALAR)
		736	{
		737	if (sp == bot)
		738	XPUSHs (&PL_sv_undef);
		739
		740	SP = bot + 1;
		741	}
		742
		743	PUTBACK;
670	}	744	}
671		745
672	/ coroutine stack handling **********************************************/	746	/ coroutine stack handling **********************************************/
673		747
674	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);	748	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
675	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);	749	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		750	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		751
		752	/* apparently < 5.8.8 */
		753	#ifndef MgPV_nolen_const
		754	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		755	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		756	(const char*)(mg)->mg_ptr)
		757	#endif
676		758
677	/*	759	/*
678	* This overrides the default magic get method of %SIG elements.	760	* 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	761	* 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	762	* and instead of tryign to save and restore the hash elements, we just provide
…		…
688	{	770	{
689	const char *s = MgPV_nolen_const (mg);	771	const char *s = MgPV_nolen_const (mg);
690		772
691	if (*s == '_')	773	if (*s == '_')
692	{	774	{
693	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;	775	SV **svp = 0;
694	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;	776
		777	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		778	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		779
		780	if (svp)
		781	{
		782	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		783	return 0;
		784	}
695	}	785	}
696		786
697	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;	787	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		788	}
		789
		790	static int
		791	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		792	{
		793	const char *s = MgPV_nolen_const (mg);
		794
		795	if (*s == '_')
		796	{
		797	SV **svp = 0;
		798
		799	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		800	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		801
		802	if (svp)
		803	{
		804	SV old = svp;
		805	*svp = 0;
		806	SvREFCNT_dec (old);
		807	return 0;
		808	}
		809	}
		810
		811	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
698	}	812	}
699		813
700	static int	814	static int
701	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)	815	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
702	{	816	{
…		…
712	if (svp)	826	if (svp)
713	{	827	{
714	SV old = svp;	828	SV old = svp;
715	*svp = newSVsv (sv);	829	*svp = newSVsv (sv);
716	SvREFCNT_dec (old);	830	SvREFCNT_dec (old);
717	return;	831	return 0;
718	}	832	}
719	}	833	}
720		834
721	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;	835	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
722	}	836	}
…		…
749	GvSV (PL_defgv) = newSV (0);	863	GvSV (PL_defgv) = newSV (0);
750	GvAV (PL_defgv) = coro->args; coro->args = 0;	864	GvAV (PL_defgv) = coro->args; coro->args = 0;
751	GvSV (PL_errgv) = newSV (0);	865	GvSV (PL_errgv) = newSV (0);
752	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	866	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
753	PL_rs = newSVsv (GvSV (irsgv));	867	PL_rs = newSVsv (GvSV (irsgv));
754	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	868	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
755		869
756	{	870	{
757	dSP;	871	dSP;
758	LOGOP myop;	872	UNOP myop;
759		873
760	Zero (&myop, 1, LOGOP);	874	Zero (&myop, 1, UNOP);
761	myop.op_next = Nullop;	875	myop.op_next = Nullop;
762	myop.op_flags = OPf_WANT_VOID;	876	myop.op_flags = OPf_WANT_VOID;
763		877
764	PUSHMARK (SP);	878	PUSHMARK (SP);
765	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	879	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
768	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	882	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
769	SPAGAIN;	883	SPAGAIN;
770	}	884	}
771		885
772	/* this newly created coroutine might be run on an existing cctx which most	886	/* this newly created coroutine might be run on an existing cctx which most
773	* likely was suspended in set_stacklevel, called from entersub.	887	* likely was suspended in set_stacklevel, called from pp_set_stacklevel,
774	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,	888	* so we have to emulate entering pp_set_stacklevel here.
775	* so we ENTER here for symmetry
776	*/	889	*/
777	ENTER;	890	SLF_HEAD;
778	}	891	}
779		892
780	static void	893	static void
781	coro_destroy (pTHX_ struct coro *coro)	894	coro_destruct (pTHX_ struct coro *coro)
782	{	895	{
783	if (!IN_DESTRUCT)	896	if (!IN_DESTRUCT)
784	{	897	{
785	/* restore all saved variables and stuff */	898	/* restore all saved variables and stuff */
786	LEAVE_SCOPE (0);	899	LEAVE_SCOPE (0);
…		…
808	SvREFCNT_dec (PL_warnhook);	921	SvREFCNT_dec (PL_warnhook);
809		922
810	SvREFCNT_dec (coro->saved_deffh);	923	SvREFCNT_dec (coro->saved_deffh);
811	SvREFCNT_dec (coro->throw);	924	SvREFCNT_dec (coro->throw);
812		925
813	coro_destroy_stacks (aTHX);	926	coro_destruct_stacks (aTHX);
814	}	927	}
815		928
816	static void	929	INLINE void
817	free_coro_mortal (pTHX)	930	free_coro_mortal (pTHX)
818	{	931	{
819	if (expect_true (coro_mortal))	932	if (expect_true (coro_mortal))
820	{	933	{
821	SvREFCNT_dec (coro_mortal);	934	SvREFCNT_dec (coro_mortal);
…		…
855	: cx->blk_gimme == G_SCALAR ? bot + 1	968	: cx->blk_gimme == G_SCALAR ? bot + 1
856	: bot;	969	: bot;
857		970
858	av_extend (av, top - bot);	971	av_extend (av, top - bot);
859	while (bot < top)	972	while (bot < top)
860	av_push (av, SvREFCNT_inc (*bot++));	973	av_push (av, SvREFCNT_inc_NN (*bot++));
861		974
862	PL_runops = RUNOPS_DEFAULT;	975	PL_runops = RUNOPS_DEFAULT;
863	ENTER;	976	ENTER;
864	SAVETMPS;	977	SAVETMPS;
865	EXTEND (SP, 3);	978	EXTEND (SP, 3);
…		…
945		1058
946	TAINT_NOT;	1059	TAINT_NOT;
947	return 0;	1060	return 0;
948	}	1061	}
949		1062
		1063	static void
		1064	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1065	{
		1066	ta->prev = (struct coro *)cctx;
		1067	ta->next = 0;
		1068	}
		1069
950	/* inject a fake call to Coro::State::_cctx_init into the execution */	1070	/* 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 */	1071	/* _cctx_init should be careful, as it could be called at almost any time */
952	/* during execution of a perl program */	1072	/* during execution of a perl program */
		1073	/* also initialises PL_top_env */
953	static void NOINLINE	1074	static void NOINLINE
954	cctx_prepare (pTHX_ coro_cctx *cctx)	1075	cctx_prepare (pTHX_ coro_cctx *cctx)
955	{	1076	{
956	dSP;	1077	dSP;
957	LOGOP myop;	1078	UNOP myop;
958		1079
959	PL_top_env = &PL_start_env;	1080	PL_top_env = &PL_start_env;
960		1081
961	if (cctx->flags & CC_TRACE)	1082	if (cctx->flags & CC_TRACE)
962	PL_runops = runops_trace;	1083	PL_runops = runops_trace;
963		1084
964	Zero (&myop, 1, LOGOP);	1085	Zero (&myop, 1, UNOP);
965	myop.op_next = PL_op;	1086	myop.op_next = PL_op;
966	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1087	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
967		1088
968	PUSHMARK (SP);	1089	PUSHMARK (SP);
969	EXTEND (SP, 2);	1090	EXTEND (SP, 2);
970	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1091	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
971	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1092	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
972	PUTBACK;	1093	PUTBACK;
973	PL_op = (OP *)&myop;	1094	PL_op = (OP *)&myop;
974	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1095	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
975	SPAGAIN;	1096	SPAGAIN;
976	}	1097	}
977		1098
		1099	/* the tail of transfer: execute stuff we can only do after a transfer */
		1100	INLINE void
		1101	transfer_tail (pTHX)
		1102	{
		1103	struct coro next = (struct coro )transfer_next;
		1104	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1105	assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
		1106
		1107	free_coro_mortal (aTHX);
		1108	UNLOCK;
		1109
		1110	if (expect_false (next->throw))
		1111	{
		1112	SV *exception = sv_2mortal (next->throw);
		1113
		1114	next->throw = 0;
		1115	sv_setsv (ERRSV, exception);
		1116	croak (0);
		1117	}
		1118	}
		1119
978	/*	1120	/*
979	* this is a _very_ stripped down perl interpreter ;)	1121	* this is a _very_ stripped down perl interpreter ;)
980	*/	1122	*/
981	static void	1123	static void
982	cctx_run (void *arg)	1124	cctx_run (void *arg)
983	{	1125	{
		1126	#ifdef USE_ITHREADS
		1127	# if CORO_PTHREAD
		1128	PERL_SET_CONTEXT (coro_thx);
		1129	# endif
		1130	#endif
		1131	{
984	dTHX;	1132	dTHX;
985		1133
986	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1134	/* we are the alternative tail to pp_set_stacklevel */
987	UNLOCK;	1135	/* so do the same things here */
		1136	SLF_TAIL;
988		1137
989	/* we now skip the entersub that lead to transfer() */	1138	/* we now skip the op that did lead to transfer() */
990	PL_op = PL_op->op_next;	1139	PL_op = PL_op->op_next;
991		1140
992	/* inject a fake subroutine call to cctx_init */	1141	/* inject a fake subroutine call to cctx_init */
993	cctx_prepare (aTHX_ (coro_cctx *)arg);	1142	cctx_prepare (aTHX_ (coro_cctx *)arg);
994		1143
		1144	/* cctx_run is the alternative tail of transfer() */
		1145	transfer_tail (aTHX);
		1146
995	/* somebody or something will hit me for both perl_run and PL_restartop */	1147	/* somebody or something will hit me for both perl_run and PL_restartop */
996	PL_restartop = PL_op;	1148	PL_restartop = PL_op;
997	perl_run (PL_curinterp);	1149	perl_run (PL_curinterp);
998		1150
999	/*	1151	/*
1000	* If perl-run returns we assume exit() was being called or the coro	1152	* 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)	1153	* 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	1154	* 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"	1155	* bootstrap-time "top" top_env, as we cannot restore the "main"
1004	* coroutine as Coro has no such concept	1156	* coroutine as Coro has no such concept
1005	*/	1157	*/
1006	PL_top_env = main_top_env;	1158	PL_top_env = main_top_env;
1007	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1159	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1160	}
1008	}	1161	}
1009		1162
1010	static coro_cctx *	1163	static coro_cctx *
1011	cctx_new ()	1164	cctx_new ()
1012	{	1165	{
1013	coro_cctx *cctx;	1166	coro_cctx *cctx;
		1167
		1168	++cctx_count;
		1169	New (0, cctx, 1, coro_cctx);
		1170
		1171	cctx->gen = cctx_gen;
		1172	cctx->flags = 0;
		1173	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1174
		1175	return cctx;
		1176	}
		1177
		1178	/* create a new cctx only suitable as source */
		1179	static coro_cctx *
		1180	cctx_new_empty ()
		1181	{
		1182	coro_cctx *cctx = cctx_new ();
		1183
		1184	cctx->sptr = 0;
		1185	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1186
		1187	return cctx;
		1188	}
		1189
		1190	/* create a new cctx suitable as destination/running a perl interpreter */
		1191	static coro_cctx *
		1192	cctx_new_run ()
		1193	{
		1194	coro_cctx *cctx = cctx_new ();
1014	void *stack_start;	1195	void *stack_start;
1015	size_t stack_size;	1196	size_t stack_size;
1016		1197
1017	++cctx_count;
1018
1019	Newz (0, cctx, 1, coro_cctx);
1020
1021	#if HAVE_MMAP	1198	#if HAVE_MMAP
1022	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1199	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1023	/* mmap supposedly does allocate-on-write for us */	1200	/* 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);	1201	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
1025		1202
1026	if (cctx->sptr != (void *)-1)	1203	if (cctx->sptr != (void *)-1)
1027	{	1204	{
1028	# if CORO_STACKGUARD	1205	#if CORO_STACKGUARD
1029	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1206	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1030	# endif	1207	#endif
1031	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1208	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
1032	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1209	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1033	cctx->flags \|= CC_MAPPED;	1210	cctx->flags \|= CC_MAPPED;
1034	}	1211	}
1035	else	1212	else
1036	#endif	1213	#endif
1037	{	1214	{
1038	cctx->ssize = coro_stacksize * (long)sizeof (long);	1215	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1039	New (0, cctx->sptr, coro_stacksize, long);	1216	New (0, cctx->sptr, cctx_stacksize, long);
1040		1217
1041	if (!cctx->sptr)	1218	if (!cctx->sptr)
1042	{	1219	{
1043	perror ("FATAL: unable to allocate stack for coroutine");	1220	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1044	_exit (EXIT_FAILURE);	1221	_exit (EXIT_FAILURE);
1045	}	1222	}
1046		1223
1047	stack_start = cctx->sptr;	1224	stack_start = cctx->sptr;
1048	stack_size = cctx->ssize;	1225	stack_size = cctx->ssize;
1049	}	1226	}
1050		1227
1051	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1228	#if CORO_USE_VALGRIND
		1229	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1230	#endif
		1231
1052	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1232	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1053		1233
1054	return cctx;	1234	return cctx;
1055	}	1235	}
1056		1236
…		…
1059	{	1239	{
1060	if (!cctx)	1240	if (!cctx)
1061	return;	1241	return;
1062		1242
1063	--cctx_count;	1243	--cctx_count;
		1244	coro_destroy (&cctx->cctx);
1064		1245
		1246	/* coro_transfer creates new, empty cctx's */
		1247	if (cctx->sptr)
		1248	{
1065	#if CORO_USE_VALGRIND	1249	#if CORO_USE_VALGRIND
1066	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1250	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1067	#endif	1251	#endif
1068		1252
1069	#if HAVE_MMAP	1253	#if HAVE_MMAP
1070	if (cctx->flags & CC_MAPPED)	1254	if (cctx->flags & CC_MAPPED)
1071	munmap (cctx->sptr, cctx->ssize);	1255	munmap (cctx->sptr, cctx->ssize);
1072	else	1256	else
1073	#endif	1257	#endif
1074	Safefree (cctx->sptr);	1258	Safefree (cctx->sptr);
		1259	}
1075		1260
1076	Safefree (cctx);	1261	Safefree (cctx);
1077	}	1262	}
1078		1263
1079	/* wether this cctx should be destructed */	1264	/* wether this cctx should be destructed */
1080	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1265	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1081		1266
1082	static coro_cctx *	1267	static coro_cctx *
1083	cctx_get (pTHX)	1268	cctx_get (pTHX)
1084	{	1269	{
1085	while (expect_true (cctx_first))	1270	while (expect_true (cctx_first))
…		…
1092	return cctx;	1277	return cctx;
1093		1278
1094	cctx_destroy (cctx);	1279	cctx_destroy (cctx);
1095	}	1280	}
1096		1281
1097	return cctx_new ();	1282	return cctx_new_run ();
1098	}	1283	}
1099		1284
1100	static void	1285	static void
1101	cctx_put (coro_cctx *cctx)	1286	cctx_put (coro_cctx *cctx)
1102	{	1287	{
		1288	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1289
1103	/* free another cctx if overlimit */	1290	/* free another cctx if overlimit */
1104	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1291	if (expect_false (cctx_idle >= cctx_max_idle))
1105	{	1292	{
1106	coro_cctx *first = cctx_first;	1293	coro_cctx *first = cctx_first;
1107	cctx_first = first->next;	1294	cctx_first = first->next;
1108	--cctx_idle;	1295	--cctx_idle;
1109		1296
…		…
1141	/* always use the TRANSFER macro */	1328	/* always use the TRANSFER macro */
1142	static void NOINLINE	1329	static void NOINLINE
1143	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)	1330	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1144	{	1331	{
1145	dSTACKLEVEL;	1332	dSTACKLEVEL;
1146	static volatile int has_throw;
1147		1333
1148	/* sometimes transfer is only called to set idle_sp */	1334	/* sometimes transfer is only called to set idle_sp */
1149	if (expect_false (!next))	1335	if (expect_false (!next))
1150	{	1336	{
1151	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1337	((coro_cctx *)prev)->idle_sp = stacklevel;
1152	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1338	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1153	}	1339	}
1154	else if (expect_true (prev != next))	1340	else if (expect_true (prev != next))
1155	{	1341	{
1156	coro_cctx *prev__cctx;	1342	coro_cctx *prev__cctx;
1157		1343
1158	if (expect_false (prev->flags & CF_NEW))	1344	if (expect_false (prev->flags & CF_NEW))
1159	{	1345	{
1160	/* create a new empty context */	1346	/* create a new empty/source context */
1161	Newz (0, prev->cctx, 1, coro_cctx);	1347	prev->cctx = cctx_new_empty ();
1162	prev->flags &= ~CF_NEW;	1348	prev->flags &= ~CF_NEW;
1163	prev->flags \|= CF_RUNNING;	1349	prev->flags \|= CF_RUNNING;
1164	}	1350	}
1165		1351
1166	prev->flags &= ~CF_RUNNING;	1352	prev->flags &= ~CF_RUNNING;
…		…
1181	else	1367	else
1182	load_perl (aTHX_ next);	1368	load_perl (aTHX_ next);
1183		1369
1184	prev__cctx = prev->cctx;	1370	prev__cctx = prev->cctx;
1185		1371
1186	/* possibly "free" the cctx */	1372	/* possibly untie and reuse the cctx */
1187	if (expect_true (	1373	if (expect_true (
1188	prev__cctx->idle_sp == STACKLEVEL	1374	prev__cctx->idle_sp == stacklevel
1189	&& !(prev__cctx->flags & CC_TRACE)	1375	&& !(prev__cctx->flags & CC_TRACE)
1190	&& !force_cctx	1376	&& !force_cctx
1191	))	1377	))
1192	{	1378	{
1193	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1379	/* 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));	1380	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1195		1381
1196	prev->cctx = 0;	1382	prev->cctx = 0;
1197		1383
1198	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1384	/* 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 */	1385	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1207	++next->usecount;	1393	++next->usecount;
1208		1394
1209	if (expect_true (!next->cctx))	1395	if (expect_true (!next->cctx))
1210	next->cctx = cctx_get (aTHX);	1396	next->cctx = cctx_get (aTHX);
1211		1397
1212	has_throw = !!next->throw;	1398	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1399	transfer_next = next;
1213		1400
1214	if (expect_false (prev__cctx != next->cctx))	1401	if (expect_false (prev__cctx != next->cctx))
1215	{	1402	{
1216	prev__cctx->top_env = PL_top_env;	1403	prev__cctx->top_env = PL_top_env;
1217	PL_top_env = next->cctx->top_env;	1404	PL_top_env = next->cctx->top_env;
1218	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1405	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1219	}	1406	}
1220		1407
1221	free_coro_mortal (aTHX);	1408	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	}	1409	}
1237	}	1410	}
1238
1239	struct transfer_args
1240	{
1241	struct coro prev, next;
1242	};
1243		1411
1244	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))	1412	#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)	1413	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1246		1414
1247	/ high level stuff ******************************************************/	1415	/ high level stuff ******************************************************/
…		…
1273	croak ("FATAL: tried to destroy currently running coroutine");	1441	croak ("FATAL: tried to destroy currently running coroutine");
1274		1442
1275	save_perl (aTHX_ &temp);	1443	save_perl (aTHX_ &temp);
1276	load_perl (aTHX_ coro);	1444	load_perl (aTHX_ coro);
1277		1445
1278	coro_destroy (aTHX_ coro);	1446	coro_destruct (aTHX_ coro);
1279		1447
1280	load_perl (aTHX_ &temp);	1448	load_perl (aTHX_ &temp);
1281		1449
1282	coro->slot = 0;	1450	coro->slot = 0;
1283	}	1451	}
…		…
1337	ta->next = SvSTATE (next_sv);	1505	ta->next = SvSTATE (next_sv);
1338	TRANSFER_CHECK (*ta);	1506	TRANSFER_CHECK (*ta);
1339	}	1507	}
1340		1508
1341	static void	1509	static void
1342	api_transfer (SV prev_sv, SV next_sv)	1510	api_transfer (pTHX_ SV prev_sv, SV next_sv)
1343	{	1511	{
1344	dTHX;
1345	struct transfer_args ta;	1512	struct transfer_args ta;
1346		1513
1347	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1514	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1348	TRANSFER (ta, 1);	1515	TRANSFER (ta, 1);
1349	}	1516	}
…		…
1367		1534
1368	return 0;	1535	return 0;
1369	}	1536	}
1370		1537
1371	static int	1538	static int
1372	api_ready (SV *coro_sv)	1539	api_ready (pTHX_ SV *coro_sv)
1373	{	1540	{
1374	dTHX;
1375	struct coro *coro;	1541	struct coro *coro;
		1542	SV *sv_hook;
		1543	void (*xs_hook)(void);
1376		1544
1377	if (SvROK (coro_sv))	1545	if (SvROK (coro_sv))
1378	coro_sv = SvRV (coro_sv);	1546	coro_sv = SvRV (coro_sv);
1379		1547
1380	coro = SvSTATE (coro_sv);	1548	coro = SvSTATE (coro_sv);
…		…
1383	return 0;	1551	return 0;
1384		1552
1385	coro->flags \|= CF_READY;	1553	coro->flags \|= CF_READY;
1386		1554
1387	LOCK;	1555	LOCK;
		1556
		1557	sv_hook = coro_nready ? 0 : coro_readyhook;
		1558	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1559
1388	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1560	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1389	++coro_nready;	1561	++coro_nready;
		1562
1390	UNLOCK;	1563	UNLOCK;
		1564
		1565	if (sv_hook)
		1566	{
		1567	dSP;
		1568
		1569	ENTER;
		1570	SAVETMPS;
		1571
		1572	PUSHMARK (SP);
		1573	PUTBACK;
		1574	call_sv (sv_hook, G_DISCARD);
		1575	SPAGAIN;
		1576
		1577	FREETMPS;
		1578	LEAVE;
		1579	}
		1580
		1581	if (xs_hook)
		1582	xs_hook ();
1391		1583
1392	return 1;	1584	return 1;
1393	}	1585	}
1394		1586
1395	static int	1587	static int
1396	api_is_ready (SV *coro_sv)	1588	api_is_ready (pTHX_ SV *coro_sv)
1397	{	1589	{
1398	dTHX;
1399	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1590	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1400	}	1591	}
1401		1592
1402	static void	1593	INLINE void
1403	prepare_schedule (pTHX_ struct transfer_args *ta)	1594	prepare_schedule (pTHX_ struct transfer_args *ta)
1404	{	1595	{
1405	SV prev_sv, next_sv;	1596	SV prev_sv, next_sv;
1406		1597
1407	for (;;)	1598	for (;;)
…		…
1433	/* cannot transfer to destroyed coros, skip and look for next */	1624	/* cannot transfer to destroyed coros, skip and look for next */
1434	if (expect_false (ta->next->flags & CF_DESTROYED))	1625	if (expect_false (ta->next->flags & CF_DESTROYED))
1435	{	1626	{
1436	UNLOCK;	1627	UNLOCK;
1437	SvREFCNT_dec (next_sv);	1628	SvREFCNT_dec (next_sv);
1438	/* coro_nready is already taken care of by destroy */	1629	/* coro_nready has already been taken care of by destroy */
1439	continue;	1630	continue;
1440	}	1631	}
1441		1632
1442	--coro_nready;	1633	--coro_nready;
1443	UNLOCK;	1634	UNLOCK;
…		…
1446		1637
1447	/* free this only after the transfer */	1638	/* free this only after the transfer */
1448	prev_sv = SvRV (coro_current);	1639	prev_sv = SvRV (coro_current);
1449	ta->prev = SvSTATE (prev_sv);	1640	ta->prev = SvSTATE (prev_sv);
1450	TRANSFER_CHECK (*ta);	1641	TRANSFER_CHECK (*ta);
1451	assert (ta->next->flags & CF_READY);	1642	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1452	ta->next->flags &= ~CF_READY;	1643	ta->next->flags &= ~CF_READY;
1453	SvRV_set (coro_current, next_sv);	1644	SvRV_set (coro_current, next_sv);
1454		1645
1455	LOCK;	1646	LOCK;
1456	free_coro_mortal (aTHX);	1647	free_coro_mortal (aTHX);
1457	coro_mortal = prev_sv;	1648	coro_mortal = prev_sv;
1458	UNLOCK;	1649	UNLOCK;
1459	}	1650	}
1460		1651
		1652	INLINE void
		1653	prepare_cede (pTHX_ struct transfer_args *ta)
		1654	{
		1655	api_ready (aTHX_ coro_current);
		1656	prepare_schedule (aTHX_ ta);
		1657	}
		1658
1461	static void	1659	static void
1462	prepare_cede (pTHX_ struct transfer_args *ta)	1660	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1463	{	1661	{
1464	api_ready (coro_current);	1662	SV *prev = SvRV (coro_current);
		1663
		1664	if (coro_nready)
		1665	{
		1666	prepare_schedule (aTHX_ ta);
		1667	api_ready (aTHX_ prev);
		1668	}
		1669	else
		1670	ta->prev = ta->next = SvSTATE (prev);
		1671	}
		1672
		1673	static void
		1674	api_schedule (pTHX)
		1675	{
		1676	struct transfer_args ta;
		1677
1465	prepare_schedule (aTHX_ ta);	1678	prepare_schedule (aTHX_ &ta);
		1679	TRANSFER (ta, 1);
1466	}	1680	}
1467		1681
1468	static int	1682	static int
1469	prepare_cede_notself (pTHX_ struct transfer_args *ta)	1683	api_cede (pTHX)
1470	{	1684	{
1471	if (coro_nready)	1685	struct transfer_args ta;
1472	{	1686
1473	SV *prev = SvRV (coro_current);
1474	prepare_schedule (aTHX_ ta);	1687	prepare_cede (aTHX_ &ta);
1475	api_ready (prev);	1688
		1689	if (expect_true (ta.prev != ta.next))
		1690	{
		1691	TRANSFER (ta, 1);
1476	return 1;	1692	return 1;
1477	}	1693	}
1478	else	1694	else
1479	return 0;	1695	return 0;
1480	}	1696	}
1481		1697
1482	static void
1483	api_schedule (void)
1484	{
1485	dTHX;
1486	struct transfer_args ta;
1487
1488	prepare_schedule (aTHX_ &ta);
1489	TRANSFER (ta, 1);
1490	}
1491
1492	static int	1698	static int
1493	api_cede (void)	1699	api_cede_notself (pTHX)
1494	{	1700	{
1495	dTHX;	1701	if (coro_nready)
		1702	{
1496	struct transfer_args ta;	1703	struct transfer_args ta;
1497		1704
1498	prepare_cede (aTHX_ &ta);	1705	prepare_cede_notself (aTHX_ &ta);
1499
1500	if (expect_true (ta.prev != ta.next))
1501	{
1502	TRANSFER (ta, 1);	1706	TRANSFER (ta, 1);
1503	return 1;	1707	return 1;
1504	}	1708	}
1505	else	1709	else
1506	return 0;	1710	return 0;
1507	}	1711	}
1508		1712
1509	static int
1510	api_cede_notself (void)
1511	{
1512	dTHX;
1513	struct transfer_args ta;
1514
1515	if (prepare_cede_notself (aTHX_ &ta))
1516	{
1517	TRANSFER (ta, 1);
1518	return 1;
1519	}
1520	else
1521	return 0;
1522	}
1523
1524	static void	1713	static void
1525	api_trace (SV *coro_sv, int flags)	1714	api_trace (pTHX_ SV *coro_sv, int flags)
1526	{	1715	{
1527	dTHX;
1528	struct coro *coro = SvSTATE (coro_sv);	1716	struct coro *coro = SvSTATE (coro_sv);
1529		1717
1530	if (flags & CC_TRACE)	1718	if (flags & CC_TRACE)
1531	{	1719	{
1532	if (!coro->cctx)	1720	if (!coro->cctx)
1533	coro->cctx = cctx_new ();	1721	coro->cctx = cctx_new_run ();
1534	else if (!(coro->cctx->flags & CC_TRACE))	1722	else if (!(coro->cctx->flags & CC_TRACE))
1535	croak ("cannot enable tracing on coroutine with custom stack");	1723	croak ("cannot enable tracing on coroutine with custom stack");
1536		1724
1537	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1725	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1538	}	1726	}
…		…
1545	else	1733	else
1546	coro->slot->runops = RUNOPS_DEFAULT;	1734	coro->slot->runops = RUNOPS_DEFAULT;
1547	}	1735	}
1548	}	1736	}
1549		1737
		1738	#if 0
		1739	static int
		1740	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1741	{
		1742	AV *padlist;
		1743	AV av = (AV )mg->mg_obj;
		1744
		1745	abort ();
		1746
		1747	return 0;
		1748	}
		1749
		1750	static MGVTBL coro_gensub_vtbl = {
		1751	0, 0, 0, 0,
		1752	coro_gensub_free
		1753	};
		1754	#endif
		1755
		1756	/*****************************************************************************/
		1757	/* PerlIO::cede */
		1758
		1759	typedef struct
		1760	{
		1761	PerlIOBuf base;
		1762	NV next, every;
		1763	} PerlIOCede;
		1764
		1765	static IV
		1766	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1767	{
		1768	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1769
		1770	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1771	self->next = nvtime () + self->every;
		1772
		1773	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1774	}
		1775
		1776	static SV *
		1777	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1778	{
		1779	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1780
		1781	return newSVnv (self->every);
		1782	}
		1783
		1784	static IV
		1785	PerlIOCede_flush (pTHX_ PerlIO *f)
		1786	{
		1787	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1788	double now = nvtime ();
		1789
		1790	if (now >= self->next)
		1791	{
		1792	api_cede (aTHX);
		1793	self->next = now + self->every;
		1794	}
		1795
		1796	return PerlIOBuf_flush (aTHX_ f);
		1797	}
		1798
		1799	static PerlIO_funcs PerlIO_cede =
		1800	{
		1801	sizeof(PerlIO_funcs),
		1802	"cede",
		1803	sizeof(PerlIOCede),
		1804	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1805	PerlIOCede_pushed,
		1806	PerlIOBuf_popped,
		1807	PerlIOBuf_open,
		1808	PerlIOBase_binmode,
		1809	PerlIOCede_getarg,
		1810	PerlIOBase_fileno,
		1811	PerlIOBuf_dup,
		1812	PerlIOBuf_read,
		1813	PerlIOBuf_unread,
		1814	PerlIOBuf_write,
		1815	PerlIOBuf_seek,
		1816	PerlIOBuf_tell,
		1817	PerlIOBuf_close,
		1818	PerlIOCede_flush,
		1819	PerlIOBuf_fill,
		1820	PerlIOBase_eof,
		1821	PerlIOBase_error,
		1822	PerlIOBase_clearerr,
		1823	PerlIOBase_setlinebuf,
		1824	PerlIOBuf_get_base,
		1825	PerlIOBuf_bufsiz,
		1826	PerlIOBuf_get_ptr,
		1827	PerlIOBuf_get_cnt,
		1828	PerlIOBuf_set_ptrcnt,
		1829	};
		1830
		1831	/*****************************************************************************/
		1832
		1833	static const CV slf_cv; / for quick consistency check */
		1834
		1835	static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
		1836	static SV *slf_arg0;
		1837	static SV *slf_arg1;
		1838
		1839	/* this restores the stack in the case we patched the entersub, to */
		1840	/* recreate the stack frame as perl will on following calls */
		1841	/* since entersub cleared the stack */
		1842	static OP *
		1843	pp_restore (pTHX)
		1844	{
		1845	dSP;
		1846
		1847	PUSHMARK (SP);
		1848
		1849	EXTEND (SP, 3);
		1850	if (slf_arg0) PUSHs (sv_2mortal (slf_arg0));
		1851	if (slf_arg1) PUSHs (sv_2mortal (slf_arg1));
		1852	PUSHs ((SV *)CvGV (slf_cv));
		1853
		1854	RETURNOP (slf_restore.op_first);
		1855	}
		1856
		1857	#define OPpENTERSUB_SLF 15 /* the part of op_private entersub hopefully doesn't use */
		1858
		1859	enum {
		1860	CORO_SLF_CUSTOM = 0,
		1861	CORO_SLF_SET_STACKLEVEL = 1,
		1862	CORO_SLF_TRANSFER = 2
		1863	};
		1864
		1865	/* declare prototype */
		1866	XS(XS_Coro__State__set_stacklevel);
		1867
		1868	/*
		1869	* these not obviously related functions are all rolled into one
		1870	* function to increase chances that they all will call transfer with the same
		1871	* stack offset
		1872	* SLF stands for "schedule-like-function".
		1873	*/
		1874	static OP *
		1875	pp_slf (pTHX)
		1876	{
		1877	dSP;
		1878	struct transfer_args ta;
		1879	SV **arg = PL_stack_base + TOPMARK + 1;
		1880	int items = SP - arg; /* args without function object */
		1881	int ix = PL_op->op_private & OPpENTERSUB_SLF;
		1882	struct CoroSLF *slf = 0;
		1883
		1884	/* do a quick consistency check on the "function" object, and if it isn't */
		1885	/* for us, divert to the real entersub */
		1886	if (SvTYPE (sp) != SVt_PVGV \|\| CvXSUB (GvCV (sp)) != XS_Coro__State__set_stacklevel)
		1887	return PL_ppaddr[OP_ENTERSUB](aTHX);
		1888
		1889	/* pop args */
		1890	SP = PL_stack_base + POPMARK;
		1891
		1892	if (!(PL_op->op_flags & OPf_STACKED))
		1893	{
		1894	/* ampersand-form of call, use @_ instead of stack */
		1895	AV *av = GvAV (PL_defgv);
		1896	arg = AvARRAY (av);
		1897	items = AvFILLp (av) + 1;
		1898	}
		1899
		1900	PUTBACK;
		1901
		1902	if (!ix)
		1903	{
		1904	slf = (struct CoroSLF )CvSTART (GvCV (sp));
		1905	ix = slf->prepare (aTHX_ arg, items);
		1906	}
		1907
		1908	switch (ix)
		1909	{
		1910	case CORO_SLF_SET_STACKLEVEL:
		1911	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
		1912	break;
		1913
		1914	case CORO_SLF_TRANSFER:
		1915	if (items != 2)
		1916	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
		1917
		1918	prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
		1919	break;
		1920
		1921	case CORO_SLF_SCHEDULE:
		1922	prepare_schedule (aTHX_ &ta);
		1923	break;
		1924
		1925	case CORO_SLF_CEDE:
		1926	prepare_cede (aTHX_ &ta);
		1927	break;
		1928
		1929	case CORO_SLF_CEDE_NOTSELF:
		1930	prepare_cede_notself (aTHX_ &ta);
		1931	break;
		1932
		1933	default:
		1934	abort ();
		1935	}
		1936
		1937	do
		1938	TRANSFER (ta, 0);
		1939	while (slf && slf->check (aTHX));
		1940
		1941	SPAGAIN;
		1942
		1943	PUTBACK;
		1944	SLF_TAIL;
		1945	SPAGAIN;
		1946	RETURN;
		1947	}
		1948
		1949	static void
		1950	coro_slf_patch (pTHX_ CV cv, int ix, SV *args, int items)
		1951	{
		1952	assert (("FATAL: SLF call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_slf));
		1953
		1954	assert (("FATAL: SLF call with illegal CV value", CvGV (cv)));
		1955	slf_cv = cv;
		1956
		1957	/* we patch the op, and then re-run the whole call */
		1958	/* we have to put the same argument on the stack for this to work */
		1959	/* and this will be done by pp_restore */
		1960	slf_restore.op_next = (OP *)&slf_restore;
		1961	slf_restore.op_type = OP_NULL;
		1962	slf_restore.op_ppaddr = pp_restore;
		1963	slf_restore.op_first = PL_op;
		1964
		1965	slf_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0;
		1966	slf_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0;
		1967
		1968	PL_op->op_ppaddr = pp_slf;
		1969	PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SLF \| ix; /* we potentially share our private flags with entersub */
		1970
		1971	PL_op = (OP *)&slf_restore;
		1972	}
		1973
1550	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1974	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1551		1975
1552	PROTOTYPES: DISABLE	1976	PROTOTYPES: DISABLE
1553		1977
1554	BOOT:	1978	BOOT:
1555	{	1979	{
1556	#ifdef USE_ITHREADS	1980	#ifdef USE_ITHREADS
1557	MUTEX_INIT (&coro_mutex);	1981	MUTEX_INIT (&coro_lock);
		1982	# if CORO_PTHREAD
		1983	coro_thx = PERL_GET_CONTEXT;
		1984	# endif
1558	#endif	1985	#endif
1559	BOOT_PAGESIZE;	1986	BOOT_PAGESIZE;
1560		1987
1561	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1988	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1562	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1989	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1563		1990
1564	orig_sigelem_get = PL_vtbl_sigelem.svt_get;	1991	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1565	PL_vtbl_sigelem.svt_get = coro_sigelem_get;	1992	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1566	orig_sigelem_set = PL_vtbl_sigelem.svt_set;	1993	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1567	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1568		1994
1569	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);	1995	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1570	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	1996	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));	1997	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1572		1998
…		…
1581	main_top_env = PL_top_env;	2007	main_top_env = PL_top_env;
1582		2008
1583	while (main_top_env->je_prev)	2009	while (main_top_env->je_prev)
1584	main_top_env = main_top_env->je_prev;	2010	main_top_env = main_top_env->je_prev;
1585		2011
1586	coroapi.ver = CORO_API_VERSION;	2012	coroapi.ver = CORO_API_VERSION;
1587	coroapi.rev = CORO_API_REVISION;	2013	coroapi.rev = CORO_API_REVISION;
1588	coroapi.transfer = api_transfer;	2014	coroapi.transfer = api_transfer;
		2015
		2016	{
		2017	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		2018
		2019	if (!svp) croak ("Time::HiRes is required");
		2020	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		2021
		2022	nvtime = INT2PTR (double ()(), SvIV (svp));
		2023	}
1589		2024
1590	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2025	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1591	}	2026	}
1592		2027
1593	SV *	2028	SV *
…		…
1617	av_push (coro->args, newSVsv (ST (i)));	2052	av_push (coro->args, newSVsv (ST (i)));
1618	}	2053	}
1619	OUTPUT:	2054	OUTPUT:
1620	RETVAL	2055	RETVAL
1621		2056
1622	# 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
1624	# stack offset
1625	void	2057	void
1626	_set_stacklevel (...)	2058	_set_stacklevel (...)
1627	ALIAS:	2059	ALIAS:
		2060	_set_stacklevel = CORO_SLF_SET_STACKLEVEL
1628	Coro::State::transfer = 1	2061	Coro::State::transfer = CORO_SLF_TRANSFER
1629	Coro::schedule = 2	2062	Coro::schedule = CORO_SLF_SCHEDULE
1630	Coro::cede = 3	2063	Coro::cede = CORO_SLF_CEDE
1631	Coro::cede_notself = 4	2064	Coro::cede_notself = CORO_SLF_CEDE_NOTSELF
1632	CODE:	2065	CODE:
1633	{	2066	coro_slf_patch (aTHX_ cv, ix, &ST (0), items);
1634	struct transfer_args ta;
1635
1636	PUTBACK;
1637	switch (ix)
1638	{
1639	case 0:
1640	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1641	ta.next = 0;
1642	break;
1643
1644	case 1:
1645	if (items != 2)
1646	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1647
1648	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
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	}
1665	SPAGAIN;
1666
1667	BARRIER;
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	}
1673		2067
1674	bool	2068	bool
1675	_destroy (SV *coro_sv)	2069	_destroy (SV *coro_sv)
1676	CODE:	2070	CODE:
1677	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	2071	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1678	OUTPUT:	2072	OUTPUT:
1679	RETVAL	2073	RETVAL
1680		2074
1681	void	2075	void
1682	_exit (code)	2076	_exit (int code)
1683	int code
1684	PROTOTYPE: $	2077	PROTOTYPE: $
1685	CODE:	2078	CODE:
1686	_exit (code);	2079	_exit (code);
1687		2080
1688	int	2081	int
1689	cctx_stacksize (int new_stacksize = 0)	2082	cctx_stacksize (int new_stacksize = 0)
1690	CODE:	2083	CODE:
1691	RETVAL = coro_stacksize;	2084	RETVAL = cctx_stacksize;
1692	if (new_stacksize)	2085	if (new_stacksize)
		2086	{
1693	coro_stacksize = new_stacksize;	2087	cctx_stacksize = new_stacksize;
		2088	++cctx_gen;
		2089	}
		2090	OUTPUT:
		2091	RETVAL
		2092
		2093	int
		2094	cctx_max_idle (int max_idle = 0)
		2095	CODE:
		2096	RETVAL = cctx_max_idle;
		2097	if (max_idle > 1)
		2098	cctx_max_idle = max_idle;
1694	OUTPUT:	2099	OUTPUT:
1695	RETVAL	2100	RETVAL
1696		2101
1697	int	2102	int
1698	cctx_count ()	2103	cctx_count ()
…		…
1722	call (Coro::State coro, SV *coderef)	2127	call (Coro::State coro, SV *coderef)
1723	ALIAS:	2128	ALIAS:
1724	eval = 1	2129	eval = 1
1725	CODE:	2130	CODE:
1726	{	2131	{
1727	if (coro->mainstack)	2132	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1728	{	2133	{
1729	struct coro temp;	2134	struct coro temp;
1730		2135
1731	if (!(coro->flags & CF_RUNNING))	2136	if (!(coro->flags & CF_RUNNING))
1732	{	2137	{
…		…
1776	RETVAL = boolSV (coro->flags & ix);	2181	RETVAL = boolSV (coro->flags & ix);
1777	OUTPUT:	2182	OUTPUT:
1778	RETVAL	2183	RETVAL
1779		2184
1780	void	2185	void
		2186	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2187	PROTOTYPE: $;$
		2188	CODE:
		2189	SvREFCNT_dec (self->throw);
		2190	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2191
		2192	void
1781	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2193	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		2194	C_ARGS: aTHX_ coro, flags
1782		2195
1783	SV *	2196	SV *
1784	has_stack (Coro::State coro)	2197	has_cctx (Coro::State coro)
1785	PROTOTYPE: $	2198	PROTOTYPE: $
1786	CODE:	2199	CODE:
1787	RETVAL = boolSV (!!coro->cctx);	2200	RETVAL = boolSV (!!coro->cctx);
1788	OUTPUT:	2201	OUTPUT:
1789	RETVAL	2202	RETVAL
…		…
1794	CODE:	2207	CODE:
1795	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2208	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1796	OUTPUT:	2209	OUTPUT:
1797	RETVAL	2210	RETVAL
1798		2211
1799	IV	2212	UV
1800	rss (Coro::State coro)	2213	rss (Coro::State coro)
1801	PROTOTYPE: $	2214	PROTOTYPE: $
1802	ALIAS:	2215	ALIAS:
1803	usecount = 1	2216	usecount = 1
1804	CODE:	2217	CODE:
…		…
1814	force_cctx ()	2227	force_cctx ()
1815	CODE:	2228	CODE:
1816	struct coro *coro = SvSTATE (coro_current);	2229	struct coro *coro = SvSTATE (coro_current);
1817	coro->cctx->idle_sp = 0;	2230	coro->cctx->idle_sp = 0;
1818		2231
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	2232	void
1915	swap_defsv (Coro::State self)	2233	swap_defsv (Coro::State self)
1916	PROTOTYPE: $	2234	PROTOTYPE: $
1917	ALIAS:	2235	ALIAS:
1918	swap_defav = 1	2236	swap_defav = 1
…		…
1925	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;	2243	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
1926		2244
1927	SV tmp = src; src = dst; *dst = tmp;	2245	SV tmp = src; src = dst; *dst = tmp;
1928	}	2246	}
1929		2247
		2248	MODULE = Coro::State PACKAGE = Coro
		2249
		2250	BOOT:
		2251	{
		2252	int i;
		2253
		2254	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2255	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2256	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
		2257
		2258	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
		2259	SvREADONLY_on (coro_current);
		2260
		2261	coro_stash = gv_stashpv ("Coro", TRUE);
		2262
		2263	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
		2264	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		2265	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		2266	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
		2267	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		2268	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
		2269
		2270	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		2271	coro_ready[i] = newAV ();
		2272
		2273	{
		2274	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
		2275
		2276	coroapi.schedule = api_schedule;
		2277	coroapi.cede = api_cede;
		2278	coroapi.cede_notself = api_cede_notself;
		2279	coroapi.ready = api_ready;
		2280	coroapi.is_ready = api_is_ready;
		2281	coroapi.nready = coro_nready;
		2282	coroapi.current = coro_current;
		2283
		2284	GCoroAPI = &coroapi;
		2285	sv_setiv (sv, (IV)&coroapi);
		2286	SvREADONLY_on (sv);
		2287	}
		2288	}
		2289
		2290	void
		2291	_set_current (SV *current)
		2292	PROTOTYPE: $
		2293	CODE:
		2294	SvREFCNT_dec (SvRV (coro_current));
		2295	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2296
		2297	void
		2298	_set_readyhook (SV *hook)
		2299	PROTOTYPE: $
		2300	CODE:
		2301	LOCK;
		2302	SvREFCNT_dec (coro_readyhook);
		2303	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2304	UNLOCK;
		2305
		2306	int
		2307	prio (Coro::State coro, int newprio = 0)
		2308	ALIAS:
		2309	nice = 1
		2310	CODE:
		2311	{
		2312	RETVAL = coro->prio;
		2313
		2314	if (items > 1)
		2315	{
		2316	if (ix)
		2317	newprio = coro->prio - newprio;
		2318
		2319	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		2320	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		2321
		2322	coro->prio = newprio;
		2323	}
		2324	}
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	SV *
		2329	ready (SV *self)
		2330	PROTOTYPE: $
		2331	CODE:
		2332	RETVAL = boolSV (api_ready (aTHX_ self));
		2333	OUTPUT:
		2334	RETVAL
		2335
		2336	int
		2337	nready (...)
		2338	PROTOTYPE:
		2339	CODE:
		2340	RETVAL = coro_nready;
		2341	OUTPUT:
		2342	RETVAL
		2343
1930	# for async_pool speedup	2344	# for async_pool speedup
1931	void	2345	void
1932	_pool_1 (SV *cb)	2346	_pool_1 (SV *cb)
1933	CODE:	2347	CODE:
1934	{	2348	{
…		…
1939	AV *invoke_av;	2353	AV *invoke_av;
1940	int i, len;	2354	int i, len;
1941		2355
1942	if (!invoke)	2356	if (!invoke)
1943	{	2357	{
1944	SvREFCNT_dec (PL_diehook); PL_diehook = 0;	2358	SV *old = PL_diehook;
		2359	PL_diehook = 0;
		2360	SvREFCNT_dec (old);
1945	croak ("\3async_pool terminate\2\n");	2361	croak ("\3async_pool terminate\2\n");
1946	}	2362	}
1947		2363
1948	SvREFCNT_dec (coro->saved_deffh);	2364	SvREFCNT_dec (coro->saved_deffh);
1949	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2365	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1950		2366
1951	hv_store (hv, "desc", sizeof ("desc") - 1,	2367	hv_store (hv, "desc", sizeof ("desc") - 1,
1952	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2368	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1953		2369
1954	invoke_av = (AV *)SvRV (invoke);	2370	invoke_av = (AV *)SvRV (invoke);
…		…
1958		2374
1959	if (len > 0)	2375	if (len > 0)
1960	{	2376	{
1961	av_fill (defav, len - 1);	2377	av_fill (defav, len - 1);
1962	for (i = 0; i < len; ++i)	2378	for (i = 0; i < len; ++i)
1963	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2379	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1964	}	2380	}
1965		2381
1966	SvREFCNT_dec (invoke);	2382	SvREFCNT_dec (invoke);
1967	}	2383	}
1968		2384
…		…
1975	sv_setsv (cb, &PL_sv_undef);	2391	sv_setsv (cb, &PL_sv_undef);
1976		2392
1977	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2393	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1978	coro->saved_deffh = 0;	2394	coro->saved_deffh = 0;
1979		2395
1980	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2396	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1981	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2397	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1982	{	2398	{
1983	SvREFCNT_dec (PL_diehook); PL_diehook = 0;	2399	SV *old = PL_diehook;
		2400	PL_diehook = 0;
		2401	SvREFCNT_dec (old);
1984	croak ("\3async_pool terminate\2\n");	2402	croak ("\3async_pool terminate\2\n");
1985	}	2403	}
1986		2404
1987	av_clear (GvAV (PL_defgv));	2405	av_clear (GvAV (PL_defgv));
1988	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2406	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1989	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2407	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1990		2408
1991	coro->prio = 0;	2409	coro->prio = 0;
1992		2410
1993	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2411	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1994	api_trace (coro_current, 0);	2412	api_trace (aTHX_ coro_current, 0);
1995		2413
1996	av_push (av_async_pool, newSVsv (coro_current));	2414	av_push (av_async_pool, newSVsv (coro_current));
1997	}	2415	}
1998		2416
		2417	#if 0
		2418
		2419	void
		2420	_generator_call (...)
		2421	PROTOTYPE: @
		2422	PPCODE:
		2423	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2424	xxxx
		2425	abort ();
		2426
		2427	SV *
		2428	gensub (SV *sub, ...)
		2429	PROTOTYPE: &;@
		2430	CODE:
		2431	{
		2432	struct coro *coro;
		2433	MAGIC *mg;
		2434	CV *xcv;
		2435	CV ncv = (CV )newSV_type (SVt_PVCV);
		2436	int i;
		2437
		2438	CvGV (ncv) = CvGV (cv);
		2439	CvFILE (ncv) = CvFILE (cv);
		2440
		2441	Newz (0, coro, 1, struct coro);
		2442	coro->args = newAV ();
		2443	coro->flags = CF_NEW;
		2444
		2445	av_extend (coro->args, items - 1);
		2446	for (i = 1; i < items; i++)
		2447	av_push (coro->args, newSVsv (ST (i)));
		2448
		2449	CvISXSUB_on (ncv);
		2450	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2451
		2452	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2453
		2454	CvXSUB (ncv) = CvXSUB (xcv);
		2455	CvANON_on (ncv);
		2456
		2457	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2458	RETVAL = newRV_noinc ((SV *)ncv);
		2459	}
		2460	OUTPUT:
		2461	RETVAL
		2462
		2463	#endif
		2464
1999		2465
2000	MODULE = Coro::State PACKAGE = Coro::AIO	2466	MODULE = Coro::State PACKAGE = Coro::AIO
2001		2467
2002	SV *	2468	void
2003	_get_state ()	2469	_get_state (SV *self)
2004	CODE:	2470	PPCODE:
2005	{	2471	{
2006	struct io_state *data;	2472	AV *defav = GvAV (PL_defgv);
2007		2473	AV *av = newAV ();
		2474	int i;
2008	RETVAL = newSV (sizeof (struct io_state));	2475	SV *data_sv = newSV (sizeof (struct io_state));
2009	data = (struct io_state *)SvPVX (RETVAL);	2476	struct io_state data = (struct io_state )SvPVX (data_sv);
2010	SvCUR_set (RETVAL, sizeof (struct io_state));	2477	SvCUR_set (data_sv, sizeof (struct io_state));
2011	SvPOK_only (RETVAL);	2478	SvPOK_only (data_sv);
2012		2479
2013	data->errorno = errno;	2480	data->errorno = errno;
2014	data->laststype = PL_laststype;	2481	data->laststype = PL_laststype;
2015	data->laststatval = PL_laststatval;	2482	data->laststatval = PL_laststatval;
2016	data->statcache = PL_statcache;	2483	data->statcache = PL_statcache;
		2484
		2485	av_extend (av, AvFILLp (defav) + 1 + 1);
		2486
		2487	for (i = 0; i <= AvFILLp (defav); ++i)
		2488	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2489
		2490	av_push (av, data_sv);
		2491
		2492	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2493
		2494	api_ready (aTHX_ self);
2017	}	2495	}
2018	OUTPUT:
2019	RETVAL
2020		2496
2021	void	2497	void
2022	_set_state (char *data_)	2498	_set_state (SV *state)
2023	PROTOTYPE: $	2499	PROTOTYPE: $
2024	CODE:	2500	PPCODE:
2025	{	2501	{
2026	struct io_state data = (void )data_;	2502	AV av = (AV )SvRV (state);
		2503	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2504	int i;
2027		2505
2028	errno = data->errorno;	2506	errno = data->errorno;
2029	PL_laststype = data->laststype;	2507	PL_laststype = data->laststype;
2030	PL_laststatval = data->laststatval;	2508	PL_laststatval = data->laststatval;
2031	PL_statcache = data->statcache;	2509	PL_statcache = data->statcache;
2032	}
2033		2510
		2511	EXTEND (SP, AvFILLp (av));
		2512	for (i = 0; i < AvFILLp (av); ++i)
		2513	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2514	}
		2515
		2516
		2517	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2518
		2519	BOOT:
		2520	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2521
		2522	SV *
		2523	_schedule (...)
		2524	PROTOTYPE: @
		2525	CODE:
		2526	{
		2527	static int incede;
		2528
		2529	api_cede_notself (aTHX);
		2530
		2531	++incede;
		2532	while (coro_nready >= incede && api_cede (aTHX))
		2533	;
		2534
		2535	sv_setsv (sv_activity, &PL_sv_undef);
		2536	if (coro_nready >= incede)
		2537	{
		2538	PUSHMARK (SP);
		2539	PUTBACK;
		2540	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2541	SPAGAIN;
		2542	}
		2543
		2544	--incede;
		2545	}
		2546
		2547
		2548	MODULE = Coro::State PACKAGE = PerlIO::cede
		2549
		2550	BOOT:
		2551	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2552

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Comparing Coro/Coro/State.xs (file contents): Revision 1.230 by root, Mon Apr 14 11:28:59 2008 UTC vs. Revision 1.270 by root, Fri Nov 14 07:22:11 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.230 by root, Mon Apr 14 11:28:59 2008 UTC vs.
Revision 1.270 by root, Fri Nov 14 07:22:11 2008 UTC