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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.207 by root, Tue Oct 9 22:29:27 2007 UTC vs.
Revision 1.264 by root, Fri Nov 14 02:29:09 2008 UTC

…		…
4	#define PERL_EXT	4	#define PERL_EXT
5		5
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
9		10
10	#include "patchlevel.h"	11	#include "patchlevel.h"
11		12
12	#include <stdio.h>	13	#include <stdio.h>
13	#include <errno.h>	14	#include <errno.h>
14	#include <assert.h>	15	#include <assert.h>
		16
		17	#ifdef WIN32
		18	# undef setjmp
		19	# undef longjmp
		20	# undef _exit
		21	# define setjmp _setjmp // deep magic, don't ask
		22	#else
		23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
15		25
16	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
17	# include <unistd.h>	27	# include <unistd.h>
18	# include <sys/mman.h>	28	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
36	# define BOOT_PAGESIZE (void)0	46	# define BOOT_PAGESIZE (void)0
37	#endif	47	#endif
38		48
39	#if CORO_USE_VALGRIND	49	#if CORO_USE_VALGRIND
40	# include <valgrind/valgrind.h>	50	# include <valgrind/valgrind.h>
41	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
42	#else
43	# define REGISTER_STACK(cctx,start,end)
44	#endif	51	#endif
45		52
46	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
47	#define MAX_IDLE_CCTX 8	54	static int cctx_max_idle = 4;
48		55
49	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
50	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
51	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
52	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
…		…
71	# ifndef IS_PADCONST	78	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	79	# define IS_PADCONST(v) 0
73	# endif	80	# endif
74	#endif	81	#endif
75		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
		93	/* 5.8.8 */
		94	#ifndef GV_NOTQUAL
		95	# define GV_NOTQUAL 0
		96	#endif
		97	#ifndef newSV
		98	# define newSV(l) NEWSV(0,l)
		99	#endif
		100
76	/* 5.8.7 */	101	/* 5.8.7 */
77	#ifndef SvRV_set	102	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	103	# define SvRV_set(s,v) SvRV(s) = (v)
79	#endif
80
81	/* 5.8.8 */
82	#ifndef GV_NOTQUAL
83	# define GV_NOTQUAL 0
84	#endif
85	#ifndef newSV
86	# define newSV(l) NEWSV(0,l)
87	#endif	104	#endif
88		105
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	106	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	107	# undef CORO_STACKGUARD
91	#endif	108	#endif
…		…
106		123
107	#define IN_DESTRUCT (PL_main_cv == Nullcv)	124	#define IN_DESTRUCT (PL_main_cv == Nullcv)
108		125
109	#if __GNUC__ >= 3	126	#if __GNUC__ >= 3
110	# define attribute(x) __attribute__(x)	127	# define attribute(x) __attribute__(x)
111	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
112	# define expect(expr,value) __builtin_expect ((expr),(value))	128	# define expect(expr,value) __builtin_expect ((expr),(value))
		129	# define INLINE static inline
113	#else	130	#else
114	# define attribute(x)	131	# define attribute(x)
115	# define BARRIER
116	# define expect(expr,value) (expr)	132	# define expect(expr,value) (expr)
		133	# define INLINE static
117	#endif	134	#endif
118		135
119	#define expect_false(expr) expect ((expr) != 0, 0)	136	#define expect_false(expr) expect ((expr) != 0, 0)
120	#define expect_true(expr) expect ((expr) != 0, 1)	137	#define expect_true(expr) expect ((expr) != 0, 1)
121		138
122	#define NOINLINE attribute ((noinline))	139	#define NOINLINE attribute ((noinline))
123		140
124	#include "CoroAPI.h"	141	#include "CoroAPI.h"
125		142
126	#ifdef USE_ITHREADS	143	#ifdef USE_ITHREADS
		144
127	static perl_mutex coro_mutex;	145	static perl_mutex coro_lock;
128	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	146	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129	# 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
130	#else	152	#else
		153
131	# define LOCK (void)0	154	# define LOCK (void)0
132	# define UNLOCK (void)0	155	# define UNLOCK (void)0
133	#endif
134		156
135	#define strpair(const) const, sizeof (const) - 1	157	#endif
		158
		159	# undef LOCK
		160	# define LOCK (void)0
		161	# undef UNLOCK
		162	# define UNLOCK (void)0
136		163
137	/* helper storage struct for Coro::AIO */	164	/* helper storage struct for Coro::AIO */
138	struct io_state	165	struct io_state
139	{	166	{
		167	AV *res;
140	int errorno;	168	int errorno;
141	I32 laststype;	169	I32 laststype; /* U16 in 5.10.0 */
142	int laststatval;	170	int laststatval;
143	Stat_t statcache;	171	Stat_t statcache;
144	};	172	};
145		173
		174	static double (nvtime)(); / so why doesn't it take void? */
		175
		176	static U32 cctx_gen;
146	static size_t coro_stacksize = CORO_STACKSIZE;	177	static size_t cctx_stacksize = CORO_STACKSIZE;
147	static struct CoroAPI coroapi;	178	static struct CoroAPI coroapi;
148	static AV main_mainstack; / used to differentiate between $main and others */	179	static AV main_mainstack; / used to differentiate between $main and others */
149	static JMPENV *main_top_env;	180	static JMPENV *main_top_env;
150	static HV coro_state_stash, coro_stash;	181	static HV coro_state_stash, coro_stash;
151	static 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	};
152		189
153	static GV irsgv; / $/ */	190	static GV irsgv; / $/ */
154	static GV stdoutgv; / STDOUT /	191	static GV stdoutgv; / STDOUT /
155		192	static SV *rv_diehook;
		193	static SV *rv_warnhook;
156	static HV hv_sig; / %SIG */	194	static HV hv_sig; / %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		195
160	/* async_pool helper stuff */	196	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	197	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	198	static SV *sv_pool_size;
163	static AV *av_async_pool;	199	static AV *av_async_pool;
		200
		201	/* Coro::AnyEvent */
		202	static SV *sv_activity;
164		203
165	static struct coro_cctx *cctx_first;	204	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	205	static int cctx_count, cctx_idle;
167		206
168	enum {	207	enum {
…		…
186	void idle_sp; / sp of top-level transfer/schedule/cede call */	225	void idle_sp; / sp of top-level transfer/schedule/cede call */
187	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	226	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
188	JMPENV *top_env;	227	JMPENV *top_env;
189	coro_context cctx;	228	coro_context cctx;
190		229
		230	U32 gen;
191	#if CORO_USE_VALGRIND	231	#if CORO_USE_VALGRIND
192	int valgrind_id;	232	int valgrind_id;
193	#endif	233	#endif
194	unsigned char flags;	234	unsigned char flags;
195	} coro_cctx;	235	} coro_cctx;
…		…
254	#define PRIO_IDLE -3	294	#define PRIO_IDLE -3
255	#define PRIO_MIN -4	295	#define PRIO_MIN -4
256		296
257	/* for Coro.pm */	297	/* for Coro.pm */
258	static SV *coro_current;	298	static SV *coro_current;
		299	static SV *coro_readyhook;
259	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	300	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
260	static int coro_nready;	301	static int coro_nready;
261	static struct coro *coro_first;	302	static struct coro *coro_first;
262		303
263	/ lowlevel stuff ********************************************************/	304	/ lowlevel stuff ********************************************************/
264		305
265	static SV *	306	static SV *
266	coro_get_sv (const char *name, int create)	307	coro_get_sv (pTHX_ const char *name, int create)
267	{	308	{
268	#if PERL_VERSION_ATLEAST (5,9,0)	309	#if PERL_VERSION_ATLEAST (5,10,0)
269	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	310	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
270	get_sv (name, create);	311	get_sv (name, create);
271	#endif	312	#endif
272	return get_sv (name, create);	313	return get_sv (name, create);
273	}	314	}
274		315
275	static AV *	316	static AV *
276	coro_get_av (const char *name, int create)	317	coro_get_av (pTHX_ const char *name, int create)
277	{	318	{
278	#if PERL_VERSION_ATLEAST (5,9,0)	319	#if PERL_VERSION_ATLEAST (5,10,0)
279	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	320	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
280	get_av (name, create);	321	get_av (name, create);
281	#endif	322	#endif
282	return get_av (name, create);	323	return get_av (name, create);
283	}	324	}
284		325
285	static HV *	326	static HV *
286	coro_get_hv (const char *name, int create)	327	coro_get_hv (pTHX_ const char *name, int create)
287	{	328	{
288	#if PERL_VERSION_ATLEAST (5,9,0)	329	#if PERL_VERSION_ATLEAST (5,10,0)
289	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	330	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
290	get_hv (name, create);	331	get_hv (name, create);
291	#endif	332	#endif
292	return get_hv (name, create);	333	return get_hv (name, create);
293	}	334	}
…		…
298	AV *padlist = CvPADLIST (cv);	339	AV *padlist = CvPADLIST (cv);
299	AV newpadlist, newpad;	340	AV newpadlist, newpad;
300		341
301	newpadlist = newAV ();	342	newpadlist = newAV ();
302	AvREAL_off (newpadlist);	343	AvREAL_off (newpadlist);
303	#if PERL_VERSION_ATLEAST (5,9,0)	344	#if PERL_VERSION_ATLEAST (5,10,0)
304	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	345	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
305	#else	346	#else
306	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	347	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
307	#endif	348	#endif
308	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	349	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
309	--AvFILLp (padlist);	350	--AvFILLp (padlist);
310		351
311	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	352	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
312	av_store (newpadlist, 1, (SV *)newpad);	353	av_store (newpadlist, 1, (SV *)newpad);
313		354
314	return newpadlist;	355	return newpadlist;
315	}	356	}
316		357
…		…
346		387
347	/* casting is fun. */	388	/* casting is fun. */
348	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	389	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
349	free_padlist (aTHX_ padlist);	390	free_padlist (aTHX_ padlist);
350		391
351	SvREFCNT_dec (av);	392	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
352		393
353	return 0;	394	return 0;
354	}	395	}
355		396
356	#define PERL_MAGIC_coro PERL_MAGIC_ext	397	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		398	#define CORO_MAGIC_type_state PERL_MAGIC_ext
357		399
358	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	400	static MGVTBL coro_cv_vtbl = {
		401	0, 0, 0, 0,
		402	coro_cv_free
		403	};
359		404
360	#define CORO_MAGIC(cv) \	405	#define CORO_MAGIC(sv, type) \
361	SvMAGIC (cv) \	406	SvMAGIC (sv) \
362	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	407	? SvMAGIC (sv)->mg_type == type \
363	? SvMAGIC (cv) \	408	? SvMAGIC (sv) \
364	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	409	: mg_find (sv, type) \
365	: 0	410	: 0
366		411
367	static struct coro *	412	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		413	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
		414
		415	INLINE struct coro *
368	SvSTATE_ (pTHX_ SV *coro)	416	SvSTATE_ (pTHX_ SV *coro)
369	{	417	{
370	HV *stash;	418	HV *stash;
371	MAGIC *mg;	419	MAGIC *mg;
372		420
…		…
382	/* very slow, but rare, check */	430	/* very slow, but rare, check */
383	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	431	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
384	croak ("Coro::State object required");	432	croak ("Coro::State object required");
385	}	433	}
386		434
387	mg = CORO_MAGIC (coro);	435	mg = CORO_MAGIC_state (coro);
388	return (struct coro *)mg->mg_ptr;	436	return (struct coro *)mg->mg_ptr;
389	}	437	}
390		438
391	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	439	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
392		440
393	/* the next two functions merely cache the padlists */	441	/* the next two functions merely cache the padlists */
394	static void	442	static void
395	get_padlist (pTHX_ CV *cv)	443	get_padlist (pTHX_ CV *cv)
396	{	444	{
397	MAGIC *mg = CORO_MAGIC (cv);	445	MAGIC *mg = CORO_MAGIC_cv (cv);
398	AV *av;	446	AV *av;
399		447
400	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	448	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
401	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	449	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
402	else	450	else
403	{	451	{
404	#if CORO_PREFER_PERL_FUNCTIONS	452	#if CORO_PREFER_PERL_FUNCTIONS
405	/* this is probably cleaner, but also slower? */	453	/* this is probably cleaner? but also slower! */
		454	/* in practise, it seems to be less stable */
406	CV *cp = Perl_cv_clone (cv);	455	CV *cp = Perl_cv_clone (cv);
407	CvPADLIST (cv) = CvPADLIST (cp);	456	CvPADLIST (cv) = CvPADLIST (cp);
408	CvPADLIST (cp) = 0;	457	CvPADLIST (cp) = 0;
409	SvREFCNT_dec (cp);	458	SvREFCNT_dec (cp);
410	#else	459	#else
…		…
414	}	463	}
415		464
416	static void	465	static void
417	put_padlist (pTHX_ CV *cv)	466	put_padlist (pTHX_ CV *cv)
418	{	467	{
419	MAGIC *mg = CORO_MAGIC (cv);	468	MAGIC *mg = CORO_MAGIC_cv (cv);
420	AV *av;	469	AV *av;
421		470
422	if (expect_false (!mg))	471	if (expect_false (!mg))
423	{	472	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
424	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
425	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
426	mg->mg_virtual = &vtbl_coro;
427	mg->mg_obj = (SV *)newAV ();
428	}
429		473
430	av = (AV *)mg->mg_obj;	474	av = (AV *)mg->mg_obj;
431		475
432	if (expect_false (AvFILLp (av) >= AvMAX (av)))	476	if (expect_false (AvFILLp (av) >= AvMAX (av)))
433	av_extend (av, AvMAX (av) + 1);	477	av_extend (av, AvMAX (av) + 1);
…		…
451	GvSV (irsgv) = slot->irsgv;	495	GvSV (irsgv) = slot->irsgv;
452		496
453	#define VAR(name,type) PL_ ## name = slot->name;	497	#define VAR(name,type) PL_ ## name = slot->name;
454	# include "state.h"	498	# include "state.h"
455	#undef VAR	499	#undef VAR
456
457	/hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);/
458	/hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);/
459		500
460	{	501	{
461	dSP;	502	dSP;
462		503
463	CV *cv;	504	CV *cv;
…		…
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	}
…		…
592		633
593	New(54,PL_savestack,24,ANY);	634	New(54,PL_savestack,24,ANY);
594	PL_savestack_ix = 0;	635	PL_savestack_ix = 0;
595	PL_savestack_max = 24;	636	PL_savestack_max = 24;
596		637
597	#if !PERL_VERSION_ATLEAST (5,9,0)	638	#if !PERL_VERSION_ATLEAST (5,10,0)
598	New(54,PL_retstack,4,OP*);	639	New(54,PL_retstack,4,OP*);
599	PL_retstack_ix = 0;	640	PL_retstack_ix = 0;
600	PL_retstack_max = 4;	641	PL_retstack_max = 4;
601	#endif	642	#endif
602	}	643	}
…		…
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)
…		…
625		666
626	Safefree (PL_tmps_stack);	667	Safefree (PL_tmps_stack);
627	Safefree (PL_markstack);	668	Safefree (PL_markstack);
628	Safefree (PL_scopestack);	669	Safefree (PL_scopestack);
629	Safefree (PL_savestack);	670	Safefree (PL_savestack);
630	#if !PERL_VERSION_ATLEAST (5,9,0)	671	#if !PERL_VERSION_ATLEAST (5,10,0)
631	Safefree (PL_retstack);	672	Safefree (PL_retstack);
632	#endif	673	#endif
633	}	674	}
634		675
635	static size_t	676	static size_t
…		…
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 (5,9,0)	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;
670	}	714	}
671		715
672	/ coroutine stack handling **********************************************/	716	/ coroutine stack handling **********************************************/
		717
		718	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		719	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		720	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		721
		722	/* apparently < 5.8.8 */
		723	#ifndef MgPV_nolen_const
		724	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		725	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		726	(const char*)(mg)->mg_ptr)
		727	#endif
		728
		729	/* we sometimes need to create the effect of entersub calling us */
		730	#define SSL_HEAD (void)0
		731	/* we somtimes need to create the effect of leaving via entersub */
		732	#define SSL_TAIL (void)0
		733
		734	/*
		735	* This overrides the default magic get method of %SIG elements.
		736	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		737	* and instead of tryign to save and restore the hash elements, we just provide
		738	* readback here.
		739	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		740	* not expecting this to actually change the hook. This is a potential problem
		741	* when a schedule happens then, but we ignore this.
		742	*/
		743	static int
		744	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		745	{
		746	const char *s = MgPV_nolen_const (mg);
		747
		748	if (*s == '_')
		749	{
		750	SV **svp = 0;
		751
		752	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		753	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		754
		755	if (svp)
		756	{
		757	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		758	return 0;
		759	}
		760	}
		761
		762	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		763	}
		764
		765	static int
		766	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		767	{
		768	const char *s = MgPV_nolen_const (mg);
		769
		770	if (*s == '_')
		771	{
		772	SV **svp = 0;
		773
		774	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		775	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		776
		777	if (svp)
		778	{
		779	SV old = svp;
		780	*svp = 0;
		781	SvREFCNT_dec (old);
		782	return 0;
		783	}
		784	}
		785
		786	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		787	}
		788
		789	static int
		790	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		791	{
		792	const char *s = MgPV_nolen_const (mg);
		793
		794	if (*s == '_')
		795	{
		796	SV **svp = 0;
		797
		798	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		799	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		800
		801	if (svp)
		802	{
		803	SV old = svp;
		804	*svp = newSVsv (sv);
		805	SvREFCNT_dec (old);
		806	return 0;
		807	}
		808	}
		809
		810	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		811	}
673		812
674	static void	813	static void
675	coro_setup (pTHX_ struct coro *coro)	814	coro_setup (pTHX_ struct coro *coro)
676	{	815	{
677	/*	816	/*
…		…
686	PL_curpm = 0;	825	PL_curpm = 0;
687	PL_curpad = 0;	826	PL_curpad = 0;
688	PL_localizing = 0;	827	PL_localizing = 0;
689	PL_dirty = 0;	828	PL_dirty = 0;
690	PL_restartop = 0;	829	PL_restartop = 0;
691	PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	830	#if PERL_VERSION_ATLEAST (5,10,0)
692	PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	831	PL_parser = 0;
		832	#endif
		833
		834	/* recreate the die/warn hooks */
		835	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		836	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
693		837
694	GvSV (PL_defgv) = newSV (0);	838	GvSV (PL_defgv) = newSV (0);
695	GvAV (PL_defgv) = coro->args; coro->args = 0;	839	GvAV (PL_defgv) = coro->args; coro->args = 0;
696	GvSV (PL_errgv) = newSV (0);	840	GvSV (PL_errgv) = newSV (0);
697	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	841	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
698	PL_rs = newSVsv (GvSV (irsgv));	842	PL_rs = newSVsv (GvSV (irsgv));
699	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	843	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
700		844
701	{	845	{
702	dSP;	846	dSP;
703	LOGOP myop;	847	UNOP myop;
704		848
705	Zero (&myop, 1, LOGOP);	849	Zero (&myop, 1, UNOP);
706	myop.op_next = Nullop;	850	myop.op_next = Nullop;
707	myop.op_flags = OPf_WANT_VOID;	851	myop.op_flags = OPf_WANT_VOID;
708		852
709	PUSHMARK (SP);	853	PUSHMARK (SP);
710	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	854	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
712	PL_op = (OP *)&myop;	856	PL_op = (OP *)&myop;
713	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	857	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
714	SPAGAIN;	858	SPAGAIN;
715	}	859	}
716		860
717	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	861	/* this newly created coroutine might be run on an existing cctx which most
		862	* likely was suspended in set_stacklevel, called from entersub.
		863	* set_stacklevel doesn't do anything on return, but entersub does LEAVE,
		864	* so we ENTER here for symmetry.
		865	*/
		866	SSL_HEAD;
718	}	867	}
719		868
720	static void	869	static void
721	coro_destroy (pTHX_ struct coro *coro)	870	coro_destruct (pTHX_ struct coro *coro)
722	{	871	{
723	if (!IN_DESTRUCT)	872	if (!IN_DESTRUCT)
724	{	873	{
725	/* restore all saved variables and stuff */	874	/* restore all saved variables and stuff */
726	LEAVE_SCOPE (0);	875	LEAVE_SCOPE (0);
…		…
748	SvREFCNT_dec (PL_warnhook);	897	SvREFCNT_dec (PL_warnhook);
749		898
750	SvREFCNT_dec (coro->saved_deffh);	899	SvREFCNT_dec (coro->saved_deffh);
751	SvREFCNT_dec (coro->throw);	900	SvREFCNT_dec (coro->throw);
752		901
753	coro_destroy_stacks (aTHX);	902	coro_destruct_stacks (aTHX);
754	}	903	}
755		904
756	static void	905	INLINE void
757	free_coro_mortal (pTHX)	906	free_coro_mortal (pTHX)
758	{	907	{
759	if (expect_true (coro_mortal))	908	if (expect_true (coro_mortal))
760	{	909	{
761	SvREFCNT_dec (coro_mortal);	910	SvREFCNT_dec (coro_mortal);
…		…
795	: cx->blk_gimme == G_SCALAR ? bot + 1	944	: cx->blk_gimme == G_SCALAR ? bot + 1
796	: bot;	945	: bot;
797		946
798	av_extend (av, top - bot);	947	av_extend (av, top - bot);
799	while (bot < top)	948	while (bot < top)
800	av_push (av, SvREFCNT_inc (*bot++));	949	av_push (av, SvREFCNT_inc_NN (*bot++));
801		950
802	PL_runops = RUNOPS_DEFAULT;	951	PL_runops = RUNOPS_DEFAULT;
803	ENTER;	952	ENTER;
804	SAVETMPS;	953	SAVETMPS;
805	EXTEND (SP, 3);	954	EXTEND (SP, 3);
806	PUSHMARK (SP);	955	PUSHMARK (SP);
807	PUSHs (&PL_sv_no);	956	PUSHs (&PL_sv_no);
808	PUSHs (fullname);	957	PUSHs (fullname);
809	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	958	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
810	PUTBACK;	959	PUTBACK;
811	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	960	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
812	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	961	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
813	SPAGAIN;	962	SPAGAIN;
814	FREETMPS;	963	FREETMPS;
815	LEAVE;	964	LEAVE;
816	PL_runops = runops_trace;	965	PL_runops = runops_trace;
…		…
843	SAVETMPS;	992	SAVETMPS;
844	EXTEND (SP, 3);	993	EXTEND (SP, 3);
845	PUSHMARK (SP);	994	PUSHMARK (SP);
846	PUSHs (&PL_sv_yes);	995	PUSHs (&PL_sv_yes);
847	PUSHs (fullname);	996	PUSHs (fullname);
848	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	997	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
849	PUTBACK;	998	PUTBACK;
850	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	999	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
851	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1000	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
852	SPAGAIN;	1001	SPAGAIN;
853	FREETMPS;	1002	FREETMPS;
854	LEAVE;	1003	LEAVE;
855	PL_runops = runops_trace;	1004	PL_runops = runops_trace;
…		…
869	PL_runops = RUNOPS_DEFAULT;	1018	PL_runops = RUNOPS_DEFAULT;
870	PUSHMARK (SP);	1019	PUSHMARK (SP);
871	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1020	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
872	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1021	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
873	PUTBACK;	1022	PUTBACK;
874	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	1023	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
875	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1024	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
876	SPAGAIN;	1025	SPAGAIN;
877	FREETMPS;	1026	FREETMPS;
878	LEAVE;	1027	LEAVE;
879	PL_runops = runops_trace;	1028	PL_runops = runops_trace;
…		…
885		1034
886	TAINT_NOT;	1035	TAINT_NOT;
887	return 0;	1036	return 0;
888	}	1037	}
889		1038
		1039	static void
		1040	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1041	{
		1042	ta->prev = (struct coro *)cctx;
		1043	ta->next = 0;
		1044	}
		1045
890	/* inject a fake call to Coro::State::_cctx_init into the execution */	1046	/* inject a fake call to Coro::State::_cctx_init into the execution */
891	/* _cctx_init should be careful, as it could be called at almost any time */	1047	/* _cctx_init should be careful, as it could be called at almost any time */
892	/* during execution of a perl program */	1048	/* during execution of a perl program */
		1049	/* also initialises PL_top_env */
893	static void NOINLINE	1050	static void NOINLINE
894	cctx_prepare (pTHX_ coro_cctx *cctx)	1051	cctx_prepare (pTHX_ coro_cctx *cctx)
895	{	1052	{
896	dSP;	1053	dSP;
897	LOGOP myop;	1054	UNOP myop;
898		1055
899	PL_top_env = &PL_start_env;	1056	PL_top_env = &PL_start_env;
900		1057
901	if (cctx->flags & CC_TRACE)	1058	if (cctx->flags & CC_TRACE)
902	PL_runops = runops_trace;	1059	PL_runops = runops_trace;
903		1060
904	Zero (&myop, 1, LOGOP);	1061	Zero (&myop, 1, UNOP);
905	myop.op_next = PL_op;	1062	myop.op_next = PL_op;
906	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1063	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
907		1064
908	PUSHMARK (SP);	1065	PUSHMARK (SP);
909	EXTEND (SP, 2);	1066	EXTEND (SP, 2);
910	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1067	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
911	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1068	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
912	PUTBACK;	1069	PUTBACK;
913	PL_op = (OP *)&myop;	1070	PL_op = (OP *)&myop;
914	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1071	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
915	SPAGAIN;	1072	SPAGAIN;
916	}	1073	}
917		1074
		1075	/* the tail of transfer: execute stuff we can only do after a transfer */
		1076	INLINE void
		1077	transfer_tail (pTHX)
		1078	{
		1079	struct coro next = (struct coro )transfer_next;
		1080	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1081	assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
		1082
		1083	free_coro_mortal (aTHX);
		1084	UNLOCK;
		1085
		1086	if (expect_false (next->throw))
		1087	{
		1088	SV *exception = sv_2mortal (next->throw);
		1089
		1090	next->throw = 0;
		1091	sv_setsv (ERRSV, exception);
		1092	croak (0);
		1093	}
		1094	}
		1095
918	/*	1096	/*
919	* this is a _very_ stripped down perl interpreter ;)	1097	* this is a _very_ stripped down perl interpreter ;)
920	*/	1098	*/
921	static void	1099	static void
922	cctx_run (void *arg)	1100	cctx_run (void *arg)
923	{	1101	{
		1102	#ifdef USE_ITHREADS
		1103	# if CORO_PTHREAD
		1104	PERL_SET_CONTEXT (coro_thx);
		1105	# endif
		1106	#endif
		1107	{
924	dTHX;	1108	dTHX;
925		1109
926	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1110	/* entersub called ENTER, but we never 'returned', undo that here */
927	UNLOCK;	1111	SSL_TAIL;
928		1112
929	/* we now skip the entersub that lead to transfer() */	1113	/* we now skip the op that did lead to transfer() */
930	PL_op = PL_op->op_next;	1114	PL_op = PL_op->op_next;
931		1115
932	/* inject a fake subroutine call to cctx_init */	1116	/* inject a fake subroutine call to cctx_init */
933	cctx_prepare (aTHX_ (coro_cctx *)arg);	1117	cctx_prepare (aTHX_ (coro_cctx *)arg);
934		1118
		1119	/* cctx_run is the alternative tail of transfer() */
		1120	transfer_tail (aTHX);
		1121
935	/* somebody or something will hit me for both perl_run and PL_restartop */	1122	/* somebody or something will hit me for both perl_run and PL_restartop */
936	PL_restartop = PL_op;	1123	PL_restartop = PL_op;
937	perl_run (PL_curinterp);	1124	perl_run (PL_curinterp);
938		1125
939	/*	1126	/*
940	* If perl-run returns we assume exit() was being called or the coro	1127	* If perl-run returns we assume exit() was being called or the coro
941	* fell off the end, which seems to be the only valid (non-bug)	1128	* fell off the end, which seems to be the only valid (non-bug)
942	* reason for perl_run to return. We try to exit by jumping to the	1129	* reason for perl_run to return. We try to exit by jumping to the
943	* bootstrap-time "top" top_env, as we cannot restore the "main"	1130	* bootstrap-time "top" top_env, as we cannot restore the "main"
944	* coroutine as Coro has no such concept	1131	* coroutine as Coro has no such concept
945	*/	1132	*/
946	PL_top_env = main_top_env;	1133	PL_top_env = main_top_env;
947	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1134	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1135	}
948	}	1136	}
949		1137
950	static coro_cctx *	1138	static coro_cctx *
951	cctx_new ()	1139	cctx_new ()
952	{	1140	{
953	coro_cctx *cctx;	1141	coro_cctx *cctx;
		1142
		1143	++cctx_count;
		1144	New (0, cctx, 1, coro_cctx);
		1145
		1146	cctx->gen = cctx_gen;
		1147	cctx->flags = 0;
		1148	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1149
		1150	return cctx;
		1151	}
		1152
		1153	/* create a new cctx only suitable as source */
		1154	static coro_cctx *
		1155	cctx_new_empty ()
		1156	{
		1157	coro_cctx *cctx = cctx_new ();
		1158
		1159	cctx->sptr = 0;
		1160	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1161
		1162	return cctx;
		1163	}
		1164
		1165	/* create a new cctx suitable as destination/running a perl interpreter */
		1166	static coro_cctx *
		1167	cctx_new_run ()
		1168	{
		1169	coro_cctx *cctx = cctx_new ();
954	void *stack_start;	1170	void *stack_start;
955	size_t stack_size;	1171	size_t stack_size;
956		1172
957	++cctx_count;
958
959	Newz (0, cctx, 1, coro_cctx);
960
961	#if HAVE_MMAP	1173	#if HAVE_MMAP
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1174	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1175	/* mmap supposedly does allocate-on-write for us */
964	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1176	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
965		1177
966	if (cctx->sptr != (void *)-1)	1178	if (cctx->sptr != (void *)-1)
967	{	1179	{
968	# if CORO_STACKGUARD	1180	#if CORO_STACKGUARD
969	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1181	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
970	# endif	1182	#endif
971	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1183	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
972	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1184	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
973	cctx->flags \|= CC_MAPPED;	1185	cctx->flags \|= CC_MAPPED;
974	}	1186	}
975	else	1187	else
976	#endif	1188	#endif
977	{	1189	{
978	cctx->ssize = coro_stacksize * (long)sizeof (long);	1190	cctx->ssize = cctx_stacksize * (long)sizeof (long);
979	New (0, cctx->sptr, coro_stacksize, long);	1191	New (0, cctx->sptr, cctx_stacksize, long);
980		1192
981	if (!cctx->sptr)	1193	if (!cctx->sptr)
982	{	1194	{
983	perror ("FATAL: unable to allocate stack for coroutine");	1195	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
984	_exit (EXIT_FAILURE);	1196	_exit (EXIT_FAILURE);
985	}	1197	}
986		1198
987	stack_start = cctx->sptr;	1199	stack_start = cctx->sptr;
988	stack_size = cctx->ssize;	1200	stack_size = cctx->ssize;
989	}	1201	}
990		1202
991	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1203	#if CORO_USE_VALGRIND
		1204	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1205	#endif
		1206
992	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1207	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
993		1208
994	return cctx;	1209	return cctx;
995	}	1210	}
996		1211
…		…
999	{	1214	{
1000	if (!cctx)	1215	if (!cctx)
1001	return;	1216	return;
1002		1217
1003	--cctx_count;	1218	--cctx_count;
		1219	coro_destroy (&cctx->cctx);
1004		1220
		1221	/* coro_transfer creates new, empty cctx's */
		1222	if (cctx->sptr)
		1223	{
1005	#if CORO_USE_VALGRIND	1224	#if CORO_USE_VALGRIND
1006	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1225	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1007	#endif	1226	#endif
1008		1227
1009	#if HAVE_MMAP	1228	#if HAVE_MMAP
1010	if (cctx->flags & CC_MAPPED)	1229	if (cctx->flags & CC_MAPPED)
1011	munmap (cctx->sptr, cctx->ssize);	1230	munmap (cctx->sptr, cctx->ssize);
1012	else	1231	else
1013	#endif	1232	#endif
1014	Safefree (cctx->sptr);	1233	Safefree (cctx->sptr);
		1234	}
1015		1235
1016	Safefree (cctx);	1236	Safefree (cctx);
1017	}	1237	}
1018		1238
1019	/* wether this cctx should be destructed */	1239	/* wether this cctx should be destructed */
1020	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1240	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1021		1241
1022	static coro_cctx *	1242	static coro_cctx *
1023	cctx_get (pTHX)	1243	cctx_get (pTHX)
1024	{	1244	{
1025	while (expect_true (cctx_first))	1245	while (expect_true (cctx_first))
…		…
1032	return cctx;	1252	return cctx;
1033		1253
1034	cctx_destroy (cctx);	1254	cctx_destroy (cctx);
1035	}	1255	}
1036		1256
1037	return cctx_new ();	1257	return cctx_new_run ();
1038	}	1258	}
1039		1259
1040	static void	1260	static void
1041	cctx_put (coro_cctx *cctx)	1261	cctx_put (coro_cctx *cctx)
1042	{	1262	{
		1263	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1264
1043	/* free another cctx if overlimit */	1265	/* free another cctx if overlimit */
1044	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1266	if (expect_false (cctx_idle >= cctx_max_idle))
1045	{	1267	{
1046	coro_cctx *first = cctx_first;	1268	coro_cctx *first = cctx_first;
1047	cctx_first = first->next;	1269	cctx_first = first->next;
1048	--cctx_idle;	1270	--cctx_idle;
1049		1271
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1291	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1292
1071	if (expect_false (next->flags & CF_DESTROYED))	1293	if (expect_false (next->flags & CF_DESTROYED))
1072	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1294	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1295
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1296	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1297	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1298	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1299	#endif
1082	}	1300	}
1083	}	1301	}
1084		1302
1085	/* always use the TRANSFER macro */	1303	/* always use the TRANSFER macro */
1086	static void NOINLINE	1304	static void NOINLINE
1087	transfer (pTHX_ struct coro prev, struct coro next)	1305	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1088	{	1306	{
1089	dSTACKLEVEL;	1307	dSTACKLEVEL;
1090		1308
1091	/* sometimes transfer is only called to set idle_sp */	1309	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1310	if (expect_false (!next))
…		…
1098	{	1316	{
1099	coro_cctx *prev__cctx;	1317	coro_cctx *prev__cctx;
1100		1318
1101	if (expect_false (prev->flags & CF_NEW))	1319	if (expect_false (prev->flags & CF_NEW))
1102	{	1320	{
1103	/* create a new empty context */	1321	/* create a new empty/source context */
1104	Newz (0, prev->cctx, 1, coro_cctx);	1322	prev->cctx = cctx_new_empty ();
1105	prev->flags &= ~CF_NEW;	1323	prev->flags &= ~CF_NEW;
1106	prev->flags \|= CF_RUNNING;	1324	prev->flags \|= CF_RUNNING;
1107	}	1325	}
1108		1326
1109	prev->flags &= ~CF_RUNNING;	1327	prev->flags &= ~CF_RUNNING;
1110	next->flags \|= CF_RUNNING;	1328	next->flags \|= CF_RUNNING;
1111		1329
1112	LOCK;	1330	LOCK;
		1331
		1332	/* first get rid of the old state */
		1333	save_perl (aTHX_ prev);
1113		1334
1114	if (expect_false (next->flags & CF_NEW))	1335	if (expect_false (next->flags & CF_NEW))
1115	{	1336	{
1116	/* need to start coroutine */	1337	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1338	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1339	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1340	coro_setup (aTHX_ next);
1122	}	1341	}
1123	else	1342	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1343	load_perl (aTHX_ next);
1128	}
1129		1344
1130	prev__cctx = prev->cctx;	1345	prev__cctx = prev->cctx;
1131		1346
1132	/* possibly "free" the cctx */	1347	/* possibly untie and reuse the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1348	if (expect_true (
		1349	prev__cctx->idle_sp == STACKLEVEL
		1350	&& !(prev__cctx->flags & CC_TRACE)
		1351	&& !force_cctx
		1352	))
1134	{	1353	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1354	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1136	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1355	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1137		1356
1138	prev->cctx = 0;	1357	prev->cctx = 0;
1139		1358
1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1359	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1141	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1360	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1148		1367
1149	++next->usecount;	1368	++next->usecount;
1150		1369
1151	if (expect_true (!next->cctx))	1370	if (expect_true (!next->cctx))
1152	next->cctx = cctx_get (aTHX);	1371	next->cctx = cctx_get (aTHX);
		1372
		1373	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1374	transfer_next = next;
1153		1375
1154	if (expect_false (prev__cctx != next->cctx))	1376	if (expect_false (prev__cctx != next->cctx))
1155	{	1377	{
1156	prev__cctx->top_env = PL_top_env;	1378	prev__cctx->top_env = PL_top_env;
1157	PL_top_env = next->cctx->top_env;	1379	PL_top_env = next->cctx->top_env;
1158	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1380	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1159	}	1381	}
1160		1382
1161	free_coro_mortal (aTHX);	1383	transfer_tail (aTHX);
1162	UNLOCK;
1163
1164	if (expect_false (prev->throw \|\| next->throw))
1165	{
1166	struct coro *coro = SvSTATE (coro_current);
1167
1168	if (coro->throw)
1169	{
1170	SV *exception = coro->throw;
1171	coro->throw = 0;
1172	sv_setsv (ERRSV, exception);
1173	croak (0);
1174	}
1175	}
1176	}	1384	}
1177	}	1385	}
1178		1386
1179	struct transfer_args
1180	{
1181	struct coro prev, next;
1182	};
1183
1184	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1387	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1185	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1388	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1186		1389
1187	/ high level stuff ******************************************************/	1390	/ high level stuff ******************************************************/
1188		1391
1189	static int	1392	static int
…		…
1213	croak ("FATAL: tried to destroy currently running coroutine");	1416	croak ("FATAL: tried to destroy currently running coroutine");
1214		1417
1215	save_perl (aTHX_ &temp);	1418	save_perl (aTHX_ &temp);
1216	load_perl (aTHX_ coro);	1419	load_perl (aTHX_ coro);
1217		1420
1218	coro_destroy (aTHX_ coro);	1421	coro_destruct (aTHX_ coro);
1219		1422
1220	load_perl (aTHX_ &temp);	1423	load_perl (aTHX_ &temp);
1221		1424
1222	coro->slot = 0;	1425	coro->slot = 0;
1223	}	1426	}
…		…
1283	{	1486	{
1284	dTHX;	1487	dTHX;
1285	struct transfer_args ta;	1488	struct transfer_args ta;
1286		1489
1287	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1490	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1288	TRANSFER (ta);	1491	TRANSFER (ta, 1);
1289	}	1492	}
1290		1493
1291	/ Coro ******************************************************************/	1494	/ Coro ******************************************************************/
1292		1495
1293	static void	1496	static void
…		…
1295	{	1498	{
1296	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1499	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1297	}	1500	}
1298		1501
1299	static SV *	1502	static SV *
1300	coro_deq (pTHX_ int min_prio)	1503	coro_deq (pTHX)
1301	{	1504	{
1302	int prio = PRIO_MAX - PRIO_MIN;	1505	int prio;
1303		1506
1304	min_prio -= PRIO_MIN;
1305	if (min_prio < 0)
1306	min_prio = 0;
1307
1308	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1507	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1309	if (AvFILLp (coro_ready [prio]) >= 0)	1508	if (AvFILLp (coro_ready [prio]) >= 0)
1310	return av_shift (coro_ready [prio]);	1509	return av_shift (coro_ready [prio]);
1311		1510
1312	return 0;	1511	return 0;
1313	}	1512	}
…		…
1315	static int	1514	static int
1316	api_ready (SV *coro_sv)	1515	api_ready (SV *coro_sv)
1317	{	1516	{
1318	dTHX;	1517	dTHX;
1319	struct coro *coro;	1518	struct coro *coro;
		1519	SV *sv_hook;
		1520	void (*xs_hook)(void);
1320		1521
1321	if (SvROK (coro_sv))	1522	if (SvROK (coro_sv))
1322	coro_sv = SvRV (coro_sv);	1523	coro_sv = SvRV (coro_sv);
1323		1524
1324	coro = SvSTATE (coro_sv);	1525	coro = SvSTATE (coro_sv);
…		…
1327	return 0;	1528	return 0;
1328		1529
1329	coro->flags \|= CF_READY;	1530	coro->flags \|= CF_READY;
1330		1531
1331	LOCK;	1532	LOCK;
		1533
		1534	sv_hook = coro_nready ? 0 : coro_readyhook;
		1535	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1536
1332	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1537	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1333	++coro_nready;	1538	++coro_nready;
		1539
1334	UNLOCK;	1540	UNLOCK;
		1541
		1542	if (sv_hook)
		1543	{
		1544	dSP;
		1545
		1546	ENTER;
		1547	SAVETMPS;
		1548
		1549	PUSHMARK (SP);
		1550	PUTBACK;
		1551	call_sv (sv_hook, G_DISCARD);
		1552	SPAGAIN;
		1553
		1554	FREETMPS;
		1555	LEAVE;
		1556	}
		1557
		1558	if (xs_hook)
		1559	xs_hook ();
1335		1560
1336	return 1;	1561	return 1;
1337	}	1562	}
1338		1563
1339	static int	1564	static int
1340	api_is_ready (SV *coro_sv)	1565	api_is_ready (SV *coro_sv)
1341	{	1566	{
1342	dTHX;	1567	dTHX;
		1568
1343	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1569	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1344	}	1570	}
1345		1571
1346	static void	1572	INLINE void
1347	prepare_schedule (pTHX_ struct transfer_args *ta)	1573	prepare_schedule (pTHX_ struct transfer_args *ta)
1348	{	1574	{
1349	SV prev_sv, next_sv;	1575	SV prev_sv, next_sv;
1350		1576
1351	for (;;)	1577	for (;;)
1352	{	1578	{
1353	LOCK;	1579	LOCK;
1354	next_sv = coro_deq (aTHX_ PRIO_MIN);	1580	next_sv = coro_deq (aTHX);
1355		1581
1356	/* nothing to schedule: call the idle handler */	1582	/* nothing to schedule: call the idle handler */
1357	if (expect_false (!next_sv))	1583	if (expect_false (!next_sv))
1358	{	1584	{
1359	dSP;	1585	dSP;
…		…
1363	SAVETMPS;	1589	SAVETMPS;
1364		1590
1365	PUSHMARK (SP);	1591	PUSHMARK (SP);
1366	PUTBACK;	1592	PUTBACK;
1367	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1593	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1594	SPAGAIN;
1368		1595
1369	FREETMPS;	1596	FREETMPS;
1370	LEAVE;	1597	LEAVE;
1371	continue;	1598	continue;
1372	}	1599	}
…		…
1376	/* cannot transfer to destroyed coros, skip and look for next */	1603	/* cannot transfer to destroyed coros, skip and look for next */
1377	if (expect_false (ta->next->flags & CF_DESTROYED))	1604	if (expect_false (ta->next->flags & CF_DESTROYED))
1378	{	1605	{
1379	UNLOCK;	1606	UNLOCK;
1380	SvREFCNT_dec (next_sv);	1607	SvREFCNT_dec (next_sv);
1381	/* coro_nready is already taken care of by destroy */	1608	/* coro_nready has already been taken care of by destroy */
1382	continue;	1609	continue;
1383	}	1610	}
1384		1611
1385	--coro_nready;	1612	--coro_nready;
1386	UNLOCK;	1613	UNLOCK;
…		…
1389		1616
1390	/* free this only after the transfer */	1617	/* free this only after the transfer */
1391	prev_sv = SvRV (coro_current);	1618	prev_sv = SvRV (coro_current);
1392	ta->prev = SvSTATE (prev_sv);	1619	ta->prev = SvSTATE (prev_sv);
1393	TRANSFER_CHECK (*ta);	1620	TRANSFER_CHECK (*ta);
1394	assert (ta->next->flags & CF_READY);	1621	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1395	ta->next->flags &= ~CF_READY;	1622	ta->next->flags &= ~CF_READY;
1396	SvRV_set (coro_current, next_sv);	1623	SvRV_set (coro_current, next_sv);
1397		1624
1398	LOCK;	1625	LOCK;
1399	free_coro_mortal (aTHX);	1626	free_coro_mortal (aTHX);
1400	coro_mortal = prev_sv;	1627	coro_mortal = prev_sv;
1401	UNLOCK;	1628	UNLOCK;
1402	}	1629	}
1403		1630
1404	static void	1631	INLINE void
1405	prepare_cede (pTHX_ struct transfer_args *ta)	1632	prepare_cede (pTHX_ struct transfer_args *ta)
1406	{	1633	{
1407	api_ready (coro_current);	1634	api_ready (coro_current);
1408	prepare_schedule (aTHX_ ta);	1635	prepare_schedule (aTHX_ ta);
1409	}	1636	}
…		…
1427	{	1654	{
1428	dTHX;	1655	dTHX;
1429	struct transfer_args ta;	1656	struct transfer_args ta;
1430		1657
1431	prepare_schedule (aTHX_ &ta);	1658	prepare_schedule (aTHX_ &ta);
1432	TRANSFER (ta);	1659	TRANSFER (ta, 1);
1433	}	1660	}
1434		1661
1435	static int	1662	static int
1436	api_cede (void)	1663	api_cede (void)
1437	{	1664	{
…		…
1440		1667
1441	prepare_cede (aTHX_ &ta);	1668	prepare_cede (aTHX_ &ta);
1442		1669
1443	if (expect_true (ta.prev != ta.next))	1670	if (expect_true (ta.prev != ta.next))
1444	{	1671	{
1445	TRANSFER (ta);	1672	TRANSFER (ta, 1);
1446	return 1;	1673	return 1;
1447	}	1674	}
1448	else	1675	else
1449	return 0;	1676	return 0;
1450	}	1677	}
…		…
1455	dTHX;	1682	dTHX;
1456	struct transfer_args ta;	1683	struct transfer_args ta;
1457		1684
1458	if (prepare_cede_notself (aTHX_ &ta))	1685	if (prepare_cede_notself (aTHX_ &ta))
1459	{	1686	{
1460	TRANSFER (ta);	1687	TRANSFER (ta, 1);
1461	return 1;	1688	return 1;
1462	}	1689	}
1463	else	1690	else
1464	return 0;	1691	return 0;
1465	}	1692	}
…		…
1471	struct coro *coro = SvSTATE (coro_sv);	1698	struct coro *coro = SvSTATE (coro_sv);
1472		1699
1473	if (flags & CC_TRACE)	1700	if (flags & CC_TRACE)
1474	{	1701	{
1475	if (!coro->cctx)	1702	if (!coro->cctx)
1476	coro->cctx = cctx_new ();	1703	coro->cctx = cctx_new_run ();
1477	else if (!(coro->cctx->flags & CC_TRACE))	1704	else if (!(coro->cctx->flags & CC_TRACE))
1478	croak ("cannot enable tracing on coroutine with custom stack");	1705	croak ("cannot enable tracing on coroutine with custom stack");
1479		1706
1480	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1707	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1481	}	1708	}
…		…
1488	else	1715	else
1489	coro->slot->runops = RUNOPS_DEFAULT;	1716	coro->slot->runops = RUNOPS_DEFAULT;
1490	}	1717	}
1491	}	1718	}
1492		1719
		1720	#if 0
		1721	static int
		1722	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1723	{
		1724	AV *padlist;
		1725	AV av = (AV )mg->mg_obj;
		1726
		1727	abort ();
		1728
		1729	return 0;
		1730	}
		1731
		1732	static MGVTBL coro_gensub_vtbl = {
		1733	0, 0, 0, 0,
		1734	coro_gensub_free
		1735	};
		1736	#endif
		1737
		1738	/*****************************************************************************/
		1739	/* PerlIO::cede */
		1740
		1741	typedef struct
		1742	{
		1743	PerlIOBuf base;
		1744	NV next, every;
		1745	} PerlIOCede;
		1746
		1747	static IV
		1748	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1749	{
		1750	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1751
		1752	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1753	self->next = nvtime () + self->every;
		1754
		1755	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1756	}
		1757
		1758	static SV *
		1759	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1760	{
		1761	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1762
		1763	return newSVnv (self->every);
		1764	}
		1765
		1766	static IV
		1767	PerlIOCede_flush (pTHX_ PerlIO *f)
		1768	{
		1769	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1770	double now = nvtime ();
		1771
		1772	if (now >= self->next)
		1773	{
		1774	api_cede ();
		1775	self->next = now + self->every;
		1776	}
		1777
		1778	return PerlIOBuf_flush (aTHX_ f);
		1779	}
		1780
		1781	static PerlIO_funcs PerlIO_cede =
		1782	{
		1783	sizeof(PerlIO_funcs),
		1784	"cede",
		1785	sizeof(PerlIOCede),
		1786	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1787	PerlIOCede_pushed,
		1788	PerlIOBuf_popped,
		1789	PerlIOBuf_open,
		1790	PerlIOBase_binmode,
		1791	PerlIOCede_getarg,
		1792	PerlIOBase_fileno,
		1793	PerlIOBuf_dup,
		1794	PerlIOBuf_read,
		1795	PerlIOBuf_unread,
		1796	PerlIOBuf_write,
		1797	PerlIOBuf_seek,
		1798	PerlIOBuf_tell,
		1799	PerlIOBuf_close,
		1800	PerlIOCede_flush,
		1801	PerlIOBuf_fill,
		1802	PerlIOBase_eof,
		1803	PerlIOBase_error,
		1804	PerlIOBase_clearerr,
		1805	PerlIOBase_setlinebuf,
		1806	PerlIOBuf_get_base,
		1807	PerlIOBuf_bufsiz,
		1808	PerlIOBuf_get_ptr,
		1809	PerlIOBuf_get_cnt,
		1810	PerlIOBuf_set_ptrcnt,
		1811	};
		1812
		1813	/*****************************************************************************/
		1814
		1815	static const CV ssl_cv; / for quick consistency check */
		1816
		1817	static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
		1818	static SV *ssl_arg0;
		1819	static SV *ssl_arg1;
		1820
		1821	/* this restores the stack in the case we patched the entersub, to */
		1822	/* recreate the stack frame as perl will on following calls */
		1823	/* since entersub cleared the stack */
		1824	static OP *
		1825	pp_restore (pTHX)
		1826	{
		1827	dSP;
		1828
		1829	PUSHMARK (SP);
		1830
		1831	EXTEND (SP, 3);
		1832	if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
		1833	if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
		1834	PUSHs ((SV *)CvGV (ssl_cv));
		1835
		1836	RETURNOP (ssl_restore.op_first);
		1837	}
		1838
		1839	/* declare prototype */
		1840	XS(XS_Coro__State__set_stacklevel);
		1841
		1842	static OP *
		1843	pp_set_stacklevel (pTHX)
		1844	{
		1845	dSP;
		1846	struct transfer_args ta;
		1847	SV **arg = PL_stack_base + TOPMARK + 1;
		1848	int items = SP - arg; /* args without function object */
		1849
		1850	/* do a quick consistency check on the "function" object, and if it isn't */
		1851	/* for us, divert to the real entersub */
		1852	if (SvTYPE (sp) != SVt_PVGV \|\| CvXSUB (GvCV (sp)) != XS_Coro__State__set_stacklevel)
		1853	return PL_ppaddr[OP_ENTERSUB](aTHX);
		1854
		1855	/* pop args */
		1856	SP = PL_stack_base + POPMARK;
		1857
		1858	if (!(PL_op->op_flags & OPf_STACKED))
		1859	{
		1860	/* ampersand-form of call, use @_ instead of stack */
		1861	AV *av = GvAV (PL_defgv);
		1862	arg = AvARRAY (av);
		1863	items = AvFILLp (av) + 1;
		1864	}
		1865
		1866	PUTBACK;
		1867	switch (PL_op->op_private & 7)
		1868	{
		1869	case 0:
		1870	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
		1871	break;
		1872
		1873	case 1:
		1874	if (items != 2)
		1875	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
		1876
		1877	prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
		1878	break;
		1879
		1880	case 2:
		1881	prepare_schedule (aTHX_ &ta);
		1882	break;
		1883
		1884	case 3:
		1885	prepare_cede (aTHX_ &ta);
		1886	break;
		1887
		1888	case 4:
		1889	if (!prepare_cede_notself (aTHX_ &ta))
		1890	RETURN;
		1891
		1892	break;
		1893	}
		1894
		1895	TRANSFER (ta, 0);
		1896	SPAGAIN;
		1897
		1898	skip:
		1899
		1900	RETURN;
		1901	}
		1902
1493	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1903	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1494		1904
1495	PROTOTYPES: DISABLE	1905	PROTOTYPES: DISABLE
1496
1497	BOOT:
1498	{
1499	#ifdef USE_ITHREADS
1500	MUTEX_INIT (&coro_mutex);
1501	#endif
1502	BOOT_PAGESIZE;
1503
1504	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1505	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1506
1507	hv_sig = coro_get_hv ("SIG", TRUE);
1508	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1509	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1510
1511	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1512	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1513
1514	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1515
1516	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1517	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1518	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1519	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1520
1521	main_mainstack = PL_mainstack;
1522	main_top_env = PL_top_env;
1523
1524	while (main_top_env->je_prev)
1525	main_top_env = main_top_env->je_prev;
1526
1527	coroapi.ver = CORO_API_VERSION;
1528	coroapi.transfer = api_transfer;
1529
1530	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1531	}
1532
1533	SV *
1534	new (char *klass, ...)
1535	CODE:
1536	{
1537	struct coro *coro;
1538	HV *hv;
1539	int i;
1540
1541	Newz (0, coro, 1, struct coro);
1542	coro->args = newAV ();
1543	coro->flags = CF_NEW;
1544
1545	if (coro_first) coro_first->prev = coro;
1546	coro->next = coro_first;
1547	coro_first = coro;
1548
1549	coro->hv = hv = newHV ();
1550	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1551	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1552
1553	av_extend (coro->args, items - 1);
1554	for (i = 1; i < items; i++)
1555	av_push (coro->args, newSVsv (ST (i)));
1556	}
1557	OUTPUT:
1558	RETVAL
1559		1906
1560	# these not obviously related functions are all rolled into the same xs	1907	# these not obviously related functions are all rolled into the same xs
1561	# function to increase chances that they all will call transfer with the same	1908	# function to increase chances that they all will call transfer with the same
1562	# stack offset	1909	# stack offset
1563	void	1910	void
1564	_set_stacklevel (...)	1911	_set_stacklevel (...)
1565	ALIAS:	1912	ALIAS:
1566	Coro::State::transfer = 1	1913	Coro::State::transfer = 1
1567	Coro::schedule = 2	1914	Coro::schedule = 2
1568	Coro::cede = 3	1915	Coro::cede = 3
1569	Coro::cede_notself = 4	1916	Coro::cede_notself = 4
1570	Coro::Event::next = 5
1571	Coro::Event::next_cancel = 6
1572	PPCODE:	1917	CODE:
1573	{	1918	{
1574	struct transfer_args ta;	1919	assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1575	int repeat = 0;
1576		1920
1577	do	1921	/* we patch the op, and then re-run the whole call */
		1922	/* we have to put some dummy argument on the stack for this to work */
		1923	/* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
		1924	ssl_restore.op_next = (OP *)&ssl_restore;
		1925	ssl_restore.op_type = OP_NULL;
		1926	ssl_restore.op_ppaddr = pp_restore;
		1927	ssl_restore.op_first = PL_op;
		1928
		1929	ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
		1930	ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
		1931
		1932	PL_op->op_ppaddr = pp_set_stacklevel;
		1933	PL_op->op_private = PL_op->op_private & ~7 \| ix; /* we potentially share our private flags with entersub */
		1934
		1935	PL_op = (OP *)&ssl_restore;
		1936	}
		1937
		1938	BOOT:
		1939	{
		1940	#ifdef USE_ITHREADS
		1941	MUTEX_INIT (&coro_lock);
		1942	# if CORO_PTHREAD
		1943	coro_thx = PERL_GET_CONTEXT;
		1944	# endif
		1945	#endif
		1946	BOOT_PAGESIZE;
		1947
		1948	ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
		1949
		1950	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1951	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1952
		1953	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1954	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1955	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1956
		1957	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1958	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1959	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1960
		1961	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1962
		1963	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1964	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1965	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1966	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
		1967
		1968	main_mainstack = PL_mainstack;
		1969	main_top_env = PL_top_env;
		1970
		1971	while (main_top_env->je_prev)
		1972	main_top_env = main_top_env->je_prev;
		1973
		1974	coroapi.ver = CORO_API_VERSION;
		1975	coroapi.rev = CORO_API_REVISION;
		1976	coroapi.transfer = api_transfer;
		1977
1578	{	1978	{
1579	switch (ix)	1979	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1580	{
1581	case 0:
1582	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1583	ta.next = 0;
1584	break;
1585		1980
1586	case 1:	1981	if (!svp) croak ("Time::HiRes is required");
1587	if (items != 2)	1982	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1588	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1589		1983
1590	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1984	nvtime = INT2PTR (double ()(), SvIV (svp));
1591	break;
1592
1593	case 2:
1594	prepare_schedule (aTHX_ &ta);
1595	break;
1596
1597	case 3:
1598	prepare_cede (aTHX_ &ta);
1599	break;
1600
1601	case 4:
1602	if (!prepare_cede_notself (aTHX_ &ta))
1603	XSRETURN_EMPTY;
1604
1605	break;
1606
1607	case 5:
1608	case 6:
1609	if (items != 1)
1610	croak ("Coro::Event::next (watcher) expects one argument, not %d", items);
1611
1612	{
1613	SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID);
1614
1615	if (ev)
1616	{
1617	if (GIMME_V != G_VOID)
1618	{
1619	XPUSHs (ev);
1620	XSRETURN (1);
1621	}
1622	else
1623	XSRETURN_EMPTY;
1624	}
1625	}
1626
1627	prepare_schedule (aTHX_ &ta);
1628	repeat = 1;
1629	break;
1630	}
1631
1632	BARRIER;
1633	TRANSFER (ta);
1634	BARRIER;
1635	}	1985	}
1636	while (repeat);
1637		1986
1638	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1987	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1639	XSRETURN_YES;
1640	}	1988	}
		1989
		1990	SV *
		1991	new (char *klass, ...)
		1992	CODE:
		1993	{
		1994	struct coro *coro;
		1995	MAGIC *mg;
		1996	HV *hv;
		1997	int i;
		1998
		1999	Newz (0, coro, 1, struct coro);
		2000	coro->args = newAV ();
		2001	coro->flags = CF_NEW;
		2002
		2003	if (coro_first) coro_first->prev = coro;
		2004	coro->next = coro_first;
		2005	coro_first = coro;
		2006
		2007	coro->hv = hv = newHV ();
		2008	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		2009	mg->mg_flags \|= MGf_DUP;
		2010	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		2011
		2012	av_extend (coro->args, items - 1);
		2013	for (i = 1; i < items; i++)
		2014	av_push (coro->args, newSVsv (ST (i)));
		2015	}
		2016	OUTPUT:
		2017	RETVAL
1641		2018
1642	bool	2019	bool
1643	_destroy (SV *coro_sv)	2020	_destroy (SV *coro_sv)
1644	CODE:	2021	CODE:
1645	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	2022	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1646	OUTPUT:	2023	OUTPUT:
1647	RETVAL	2024	RETVAL
1648		2025
1649	void	2026	void
1650	_exit (code)	2027	_exit (int code)
1651	int code
1652	PROTOTYPE: $	2028	PROTOTYPE: $
1653	CODE:	2029	CODE:
1654	_exit (code);	2030	_exit (code);
1655		2031
1656	int	2032	int
1657	cctx_stacksize (int new_stacksize = 0)	2033	cctx_stacksize (int new_stacksize = 0)
1658	CODE:	2034	CODE:
1659	RETVAL = coro_stacksize;	2035	RETVAL = cctx_stacksize;
1660	if (new_stacksize)	2036	if (new_stacksize)
		2037	{
1661	coro_stacksize = new_stacksize;	2038	cctx_stacksize = new_stacksize;
		2039	++cctx_gen;
		2040	}
		2041	OUTPUT:
		2042	RETVAL
		2043
		2044	int
		2045	cctx_max_idle (int max_idle = 0)
		2046	CODE:
		2047	RETVAL = cctx_max_idle;
		2048	if (max_idle > 1)
		2049	cctx_max_idle = max_idle;
1662	OUTPUT:	2050	OUTPUT:
1663	RETVAL	2051	RETVAL
1664		2052
1665	int	2053	int
1666	cctx_count ()	2054	cctx_count ()
…		…
1690	call (Coro::State coro, SV *coderef)	2078	call (Coro::State coro, SV *coderef)
1691	ALIAS:	2079	ALIAS:
1692	eval = 1	2080	eval = 1
1693	CODE:	2081	CODE:
1694	{	2082	{
1695	if (coro->mainstack)	2083	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1696	{	2084	{
1697	struct coro temp;	2085	struct coro temp;
1698		2086
1699	if (!(coro->flags & CF_RUNNING))	2087	if (!(coro->flags & CF_RUNNING))
1700	{	2088	{
		2089	PUTBACK;
1701	save_perl (aTHX_ &temp);	2090	save_perl (aTHX_ &temp);
1702	load_perl (aTHX_ coro);	2091	load_perl (aTHX_ coro);
1703	}	2092	}
1704		2093
1705	{	2094	{
1706	dSP;	2095	dSP;
1707	ENTER;	2096	ENTER;
1708	SAVETMPS;	2097	SAVETMPS;
		2098	PUTBACK;
		2099	PUSHSTACK;
1709	PUSHMARK (SP);	2100	PUSHMARK (SP);
1710	PUTBACK;
1711		2101
1712	if (ix)	2102	if (ix)
1713	eval_sv (coderef, 0);	2103	eval_sv (coderef, 0);
1714	else	2104	else
1715	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	2105	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1716		2106
		2107	POPSTACK;
1717	SPAGAIN;	2108	SPAGAIN;
1718	FREETMPS;	2109	FREETMPS;
1719	LEAVE;	2110	LEAVE;
1720	PUTBACK;	2111	PUTBACK;
1721	}	2112	}
1722		2113
1723	if (!(coro->flags & CF_RUNNING))	2114	if (!(coro->flags & CF_RUNNING))
1724	{	2115	{
1725	save_perl (aTHX_ coro);	2116	save_perl (aTHX_ coro);
1726	load_perl (aTHX_ &temp);	2117	load_perl (aTHX_ &temp);
		2118	SPAGAIN;
1727	}	2119	}
1728	}	2120	}
1729	}	2121	}
1730		2122
1731	SV *	2123	SV *
…		…
1740	RETVAL = boolSV (coro->flags & ix);	2132	RETVAL = boolSV (coro->flags & ix);
1741	OUTPUT:	2133	OUTPUT:
1742	RETVAL	2134	RETVAL
1743		2135
1744	void	2136	void
		2137	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2138	PROTOTYPE: $;$
		2139	CODE:
		2140	SvREFCNT_dec (self->throw);
		2141	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2142
		2143	void
1745	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2144	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1746		2145
1747	SV *	2146	SV *
1748	has_stack (Coro::State coro)	2147	has_cctx (Coro::State coro)
1749	PROTOTYPE: $	2148	PROTOTYPE: $
1750	CODE:	2149	CODE:
1751	RETVAL = boolSV (!!coro->cctx);	2150	RETVAL = boolSV (!!coro->cctx);
1752	OUTPUT:	2151	OUTPUT:
1753	RETVAL	2152	RETVAL
…		…
1758	CODE:	2157	CODE:
1759	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2158	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1760	OUTPUT:	2159	OUTPUT:
1761	RETVAL	2160	RETVAL
1762		2161
1763	IV	2162	UV
1764	rss (Coro::State coro)	2163	rss (Coro::State coro)
1765	PROTOTYPE: $	2164	PROTOTYPE: $
1766	ALIAS:	2165	ALIAS:
1767	usecount = 1	2166	usecount = 1
1768	CODE:	2167	CODE:
…		…
1772	case 1: RETVAL = coro->usecount; break;	2171	case 1: RETVAL = coro->usecount; break;
1773	}	2172	}
1774	OUTPUT:	2173	OUTPUT:
1775	RETVAL	2174	RETVAL
1776		2175
		2176	void
		2177	force_cctx ()
		2178	CODE:
		2179	struct coro *coro = SvSTATE (coro_current);
		2180	coro->cctx->idle_sp = 0;
		2181
		2182	void
		2183	swap_defsv (Coro::State self)
		2184	PROTOTYPE: $
		2185	ALIAS:
		2186	swap_defav = 1
		2187	CODE:
		2188	if (!self->slot)
		2189	croak ("cannot swap state with coroutine that has no saved state");
		2190	else
		2191	{
		2192	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2193	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2194
		2195	SV tmp = src; src = dst; *dst = tmp;
		2196	}
1777		2197
1778	MODULE = Coro::State PACKAGE = Coro	2198	MODULE = Coro::State PACKAGE = Coro
1779		2199
1780	BOOT:	2200	BOOT:
1781	{	2201	{
1782	int i;	2202	int i;
1783		2203
1784	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1785	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1786	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	2204	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2205	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2206	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1787		2207
1788	coro_current = coro_get_sv ("Coro::current", FALSE);	2208	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1789	SvREADONLY_on (coro_current);	2209	SvREADONLY_on (coro_current);
1790		2210
1791	coro_stash = gv_stashpv ("Coro", TRUE);	2211	coro_stash = gv_stashpv ("Coro", TRUE);
1792		2212
1793	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2213	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1799		2219
1800	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	2220	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1801	coro_ready[i] = newAV ();	2221	coro_ready[i] = newAV ();
1802		2222
1803	{	2223	{
1804	SV *sv = perl_get_sv ("Coro::API", TRUE);	2224	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1805	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1806		2225
1807	coroapi.schedule = api_schedule;	2226	coroapi.schedule = api_schedule;
1808	coroapi.cede = api_cede;	2227	coroapi.cede = api_cede;
1809	coroapi.cede_notself = api_cede_notself;	2228	coroapi.cede_notself = api_cede_notself;
1810	coroapi.ready = api_ready;	2229	coroapi.ready = api_ready;
…		…
1821	void	2240	void
1822	_set_current (SV *current)	2241	_set_current (SV *current)
1823	PROTOTYPE: $	2242	PROTOTYPE: $
1824	CODE:	2243	CODE:
1825	SvREFCNT_dec (SvRV (coro_current));	2244	SvREFCNT_dec (SvRV (coro_current));
1826	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2245	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2246
		2247	void
		2248	_set_readyhook (SV *hook)
		2249	PROTOTYPE: $
		2250	CODE:
		2251	LOCK;
		2252	SvREFCNT_dec (coro_readyhook);
		2253	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2254	UNLOCK;
1827		2255
1828	int	2256	int
1829	prio (Coro::State coro, int newprio = 0)	2257	prio (Coro::State coro, int newprio = 0)
1830	ALIAS:	2258	ALIAS:
1831	nice = 1	2259	nice = 1
…		…
1861	CODE:	2289	CODE:
1862	RETVAL = coro_nready;	2290	RETVAL = coro_nready;
1863	OUTPUT:	2291	OUTPUT:
1864	RETVAL	2292	RETVAL
1865		2293
1866	void
1867	throw (Coro::State self, SV *throw = &PL_sv_undef)
1868	PROTOTYPE: $;$
1869	CODE:
1870	SvREFCNT_dec (self->throw);
1871	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1872
1873	# for async_pool speedup	2294	# for async_pool speedup
1874	void	2295	void
1875	_pool_1 (SV *cb)	2296	_pool_1 (SV *cb)
1876	CODE:	2297	CODE:
1877	{	2298	{
1878	struct coro *coro = SvSTATE (coro_current);	2299	struct coro *coro = SvSTATE (coro_current);
1879	HV hv = (HV )SvRV (coro_current);	2300	HV hv = (HV )SvRV (coro_current);
1880	AV *defav = GvAV (PL_defgv);	2301	AV *defav = GvAV (PL_defgv);
1881	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2302	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1882	AV *invoke_av;	2303	AV *invoke_av;
1883	int i, len;	2304	int i, len;
1884		2305
1885	if (!invoke)	2306	if (!invoke)
		2307	{
		2308	SV *old = PL_diehook;
		2309	PL_diehook = 0;
		2310	SvREFCNT_dec (old);
1886	croak ("\3async_pool terminate\2\n");	2311	croak ("\3async_pool terminate\2\n");
		2312	}
1887		2313
1888	SvREFCNT_dec (coro->saved_deffh);	2314	SvREFCNT_dec (coro->saved_deffh);
1889	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2315	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1890		2316
1891	hv_store (hv, "desc", sizeof ("desc") - 1,	2317	hv_store (hv, "desc", sizeof ("desc") - 1,
1892	newSVpvn (strpair ("[async_pool]")), 0);	2318	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1893		2319
1894	invoke_av = (AV *)SvRV (invoke);	2320	invoke_av = (AV *)SvRV (invoke);
1895	len = av_len (invoke_av);	2321	len = av_len (invoke_av);
1896		2322
1897	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2323	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1898		2324
1899	if (len > 0)	2325	if (len > 0)
1900	{	2326	{
1901	av_fill (defav, len - 1);	2327	av_fill (defav, len - 1);
1902	for (i = 0; i < len; ++i)	2328	for (i = 0; i < len; ++i)
1903	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2329	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1904	}	2330	}
1905		2331
1906	SvREFCNT_dec (invoke);	2332	SvREFCNT_dec (invoke);
1907	}	2333	}
1908		2334
…		…
1915	sv_setsv (cb, &PL_sv_undef);	2341	sv_setsv (cb, &PL_sv_undef);
1916		2342
1917	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2343	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1918	coro->saved_deffh = 0;	2344	coro->saved_deffh = 0;
1919		2345
1920	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2346	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1921	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2347	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2348	{
		2349	SV *old = PL_diehook;
		2350	PL_diehook = 0;
		2351	SvREFCNT_dec (old);
1922	croak ("\3async_pool terminate\2\n");	2352	croak ("\3async_pool terminate\2\n");
		2353	}
1923		2354
1924	av_clear (GvAV (PL_defgv));	2355	av_clear (GvAV (PL_defgv));
1925	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2356	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1926	newSVpvn (strpair ("[async_pool idle]")), 0);	2357	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1927		2358
1928	coro->prio = 0;	2359	coro->prio = 0;
1929		2360
1930	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2361	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1931	api_trace (coro_current, 0);	2362	api_trace (coro_current, 0);
1932		2363
1933	av_push (av_async_pool, newSVsv (coro_current));	2364	av_push (av_async_pool, newSVsv (coro_current));
1934	}	2365	}
1935		2366
		2367	#if 0
		2368
		2369	void
		2370	_generator_call (...)
		2371	PROTOTYPE: @
		2372	PPCODE:
		2373	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2374	xxxx
		2375	abort ();
		2376
		2377	SV *
		2378	gensub (SV *sub, ...)
		2379	PROTOTYPE: &;@
		2380	CODE:
		2381	{
		2382	struct coro *coro;
		2383	MAGIC *mg;
		2384	CV *xcv;
		2385	CV ncv = (CV )newSV_type (SVt_PVCV);
		2386	int i;
		2387
		2388	CvGV (ncv) = CvGV (cv);
		2389	CvFILE (ncv) = CvFILE (cv);
		2390
		2391	Newz (0, coro, 1, struct coro);
		2392	coro->args = newAV ();
		2393	coro->flags = CF_NEW;
		2394
		2395	av_extend (coro->args, items - 1);
		2396	for (i = 1; i < items; i++)
		2397	av_push (coro->args, newSVsv (ST (i)));
		2398
		2399	CvISXSUB_on (ncv);
		2400	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2401
		2402	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2403
		2404	CvXSUB (ncv) = CvXSUB (xcv);
		2405	CvANON_on (ncv);
		2406
		2407	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2408	RETVAL = newRV_noinc ((SV *)ncv);
		2409	}
		2410	OUTPUT:
		2411	RETVAL
		2412
		2413	#endif
		2414
1936		2415
1937	MODULE = Coro::State PACKAGE = Coro::AIO	2416	MODULE = Coro::State PACKAGE = Coro::AIO
1938		2417
1939	SV *	2418	void
1940	_get_state ()	2419	_get_state (SV *self)
1941	CODE:	2420	PPCODE:
1942	{	2421	{
1943	struct io_state *data;	2422	AV *defav = GvAV (PL_defgv);
1944		2423	AV *av = newAV ();
		2424	int i;
1945	RETVAL = newSV (sizeof (struct io_state));	2425	SV *data_sv = newSV (sizeof (struct io_state));
1946	data = (struct io_state *)SvPVX (RETVAL);	2426	struct io_state data = (struct io_state )SvPVX (data_sv);
1947	SvCUR_set (RETVAL, sizeof (struct io_state));	2427	SvCUR_set (data_sv, sizeof (struct io_state));
1948	SvPOK_only (RETVAL);	2428	SvPOK_only (data_sv);
1949		2429
1950	data->errorno = errno;	2430	data->errorno = errno;
1951	data->laststype = PL_laststype;	2431	data->laststype = PL_laststype;
1952	data->laststatval = PL_laststatval;	2432	data->laststatval = PL_laststatval;
1953	data->statcache = PL_statcache;	2433	data->statcache = PL_statcache;
		2434
		2435	av_extend (av, AvFILLp (defav) + 1 + 1);
		2436
		2437	for (i = 0; i <= AvFILLp (defav); ++i)
		2438	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2439
		2440	av_push (av, data_sv);
		2441
		2442	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2443
		2444	api_ready (self);
1954	}	2445	}
1955	OUTPUT:
1956	RETVAL
1957		2446
1958	void	2447	void
1959	_set_state (char *data_)	2448	_set_state (SV *state)
1960	PROTOTYPE: $	2449	PROTOTYPE: $
1961	CODE:	2450	PPCODE:
1962	{	2451	{
1963	struct io_state data = (void )data_;	2452	AV av = (AV )SvRV (state);
		2453	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2454	int i;
1964		2455
1965	errno = data->errorno;	2456	errno = data->errorno;
1966	PL_laststype = data->laststype;	2457	PL_laststype = data->laststype;
1967	PL_laststatval = data->laststatval;	2458	PL_laststatval = data->laststatval;
1968	PL_statcache = data->statcache;	2459	PL_statcache = data->statcache;
1969	}
1970		2460
		2461	EXTEND (SP, AvFILLp (av));
		2462	for (i = 0; i < AvFILLp (av); ++i)
		2463	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2464	}
		2465
		2466
		2467	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2468
		2469	BOOT:
		2470	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2471
		2472	SV *
		2473	_schedule (...)
		2474	PROTOTYPE: @
		2475	CODE:
		2476	{
		2477	static int incede;
		2478
		2479	api_cede_notself ();
		2480
		2481	++incede;
		2482	while (coro_nready >= incede && api_cede ())
		2483	;
		2484
		2485	sv_setsv (sv_activity, &PL_sv_undef);
		2486	if (coro_nready >= incede)
		2487	{
		2488	PUSHMARK (SP);
		2489	PUTBACK;
		2490	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2491	SPAGAIN;
		2492	}
		2493
		2494	--incede;
		2495	}
		2496
		2497
		2498	MODULE = Coro::State PACKAGE = PerlIO::cede
		2499
		2500	BOOT:
		2501	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2502

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Comparing Coro/Coro/State.xs (file contents): Revision 1.207 by root, Tue Oct 9 22:29:27 2007 UTC vs. Revision 1.264 by root, Fri Nov 14 02:29:09 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.207 by root, Tue Oct 9 22:29:27 2007 UTC vs.
Revision 1.264 by root, Fri Nov 14 02:29:09 2008 UTC