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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.213 by root, Thu Oct 11 00:40:48 2007 UTC vs.
Revision 1.265 by root, Fri Nov 14 02:42:26 2008 UTC

…		…
4	#define PERL_EXT	4	#define PERL_EXT
5		5
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
9		10
10	#include "patchlevel.h"	11	#include "patchlevel.h"
11		12
12	#include <stdio.h>	13	#include <stdio.h>
13	#include <errno.h>	14	#include <errno.h>
14	#include <assert.h>	15	#include <assert.h>
		16
		17	#ifdef WIN32
		18	# undef setjmp
		19	# undef longjmp
		20	# undef _exit
		21	# define setjmp _setjmp // deep magic, don't ask
		22	#else
15	#include <inttypes.h> /* portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
16		25
17	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
18	# include <unistd.h>	27	# include <unistd.h>
19	# include <sys/mman.h>	28	# include <sys/mman.h>
20	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
37	# define BOOT_PAGESIZE (void)0	46	# define BOOT_PAGESIZE (void)0
38	#endif	47	#endif
39		48
40	#if CORO_USE_VALGRIND	49	#if CORO_USE_VALGRIND
41	# include <valgrind/valgrind.h>	50	# include <valgrind/valgrind.h>
42	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
43	#else
44	# define REGISTER_STACK(cctx,start,end)
45	#endif	51	#endif
46		52
47	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
48	#define MAX_IDLE_CCTX 8	54	static int cctx_max_idle = 4;
49		55
50	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
51	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
52	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
53	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
…		…
72	# ifndef IS_PADCONST	78	# ifndef IS_PADCONST
73	# define IS_PADCONST(v) 0	79	# define IS_PADCONST(v) 0
74	# endif	80	# endif
75	#endif	81	#endif
76		82
		83	/* 5.11 */
		84	#ifndef CxHASARGS
		85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		86	#endif
		87
		88	/* 5.10.0 */
		89	#ifndef SvREFCNT_inc_NN
		90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		91	#endif
		92
		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
77	/* 5.8.7 */	101	/* 5.8.7 */
78	#ifndef SvRV_set	102	#ifndef SvRV_set
79	# define SvRV_set(s,v) SvRV(s) = (v)	103	# define SvRV_set(s,v) SvRV(s) = (v)
80	#endif
81
82	/* 5.8.8 */
83	#ifndef GV_NOTQUAL
84	# define GV_NOTQUAL 0
85	#endif
86	#ifndef newSV
87	# define newSV(l) NEWSV(0,l)
88	#endif	104	#endif
89		105
90	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	106	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
91	# undef CORO_STACKGUARD	107	# undef CORO_STACKGUARD
92	#endif	108	#endif
…		…
107		123
108	#define IN_DESTRUCT (PL_main_cv == Nullcv)	124	#define IN_DESTRUCT (PL_main_cv == Nullcv)
109		125
110	#if __GNUC__ >= 3	126	#if __GNUC__ >= 3
111	# define attribute(x) __attribute__(x)	127	# define attribute(x) __attribute__(x)
112	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
113	# define expect(expr,value) __builtin_expect ((expr),(value))	128	# define expect(expr,value) __builtin_expect ((expr),(value))
		129	# define INLINE static inline
114	#else	130	#else
115	# define attribute(x)	131	# define attribute(x)
116	# define BARRIER
117	# define expect(expr,value) (expr)	132	# define expect(expr,value) (expr)
		133	# define INLINE static
118	#endif	134	#endif
119		135
120	#define expect_false(expr) expect ((expr) != 0, 0)	136	#define expect_false(expr) expect ((expr) != 0, 0)
121	#define expect_true(expr) expect ((expr) != 0, 1)	137	#define expect_true(expr) expect ((expr) != 0, 1)
122		138
123	#define NOINLINE attribute ((noinline))	139	#define NOINLINE attribute ((noinline))
124		140
125	#include "CoroAPI.h"	141	#include "CoroAPI.h"
126		142
127	#ifdef USE_ITHREADS	143	#ifdef USE_ITHREADS
		144
128	static perl_mutex coro_mutex;	145	static perl_mutex coro_lock;
129	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	146	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
130	# 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
131	#else	152	#else
		153
132	# define LOCK (void)0	154	# define LOCK (void)0
133	# define UNLOCK (void)0	155	# define UNLOCK (void)0
		156
134	#endif	157	#endif
		158
		159	# undef LOCK
		160	# define LOCK (void)0
		161	# undef UNLOCK
		162	# define UNLOCK (void)0
135		163
136	/* helper storage struct for Coro::AIO */	164	/* helper storage struct for Coro::AIO */
137	struct io_state	165	struct io_state
138	{	166	{
		167	AV *res;
139	int errorno;	168	int errorno;
140	I32 laststype;	169	I32 laststype; /* U16 in 5.10.0 */
141	int laststatval;	170	int laststatval;
142	Stat_t statcache;	171	Stat_t statcache;
143	};	172	};
144		173
		174	static double (nvtime)(); / so why doesn't it take void? */
		175
		176	static U32 cctx_gen;
145	static size_t coro_stacksize = CORO_STACKSIZE;	177	static size_t cctx_stacksize = CORO_STACKSIZE;
146	static struct CoroAPI coroapi;	178	static struct CoroAPI coroapi;
147	static AV main_mainstack; / used to differentiate between $main and others */	179	static AV main_mainstack; / used to differentiate between $main and others */
148	static JMPENV *main_top_env;	180	static JMPENV *main_top_env;
149	static HV coro_state_stash, coro_stash;	181	static HV coro_state_stash, coro_stash;
150	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	};
151		189
152	static GV irsgv; / $/ */	190	static GV irsgv; / $/ */
153	static GV stdoutgv; / STDOUT /	191	static GV stdoutgv; / STDOUT /
154		192	static SV *rv_diehook;
		193	static SV *rv_warnhook;
155	static HV hv_sig; / %SIG */	194	static HV hv_sig; / %SIG */
156	static SV *sv_diehook;
157	static SV *sv_warnhook;
158		195
159	/* async_pool helper stuff */	196	/* async_pool helper stuff */
160	static SV *sv_pool_rss;	197	static SV *sv_pool_rss;
161	static SV *sv_pool_size;	198	static SV *sv_pool_size;
162	static AV *av_async_pool;	199	static AV *av_async_pool;
		200
		201	/* Coro::AnyEvent */
		202	static SV *sv_activity;
163		203
164	static struct coro_cctx *cctx_first;	204	static struct coro_cctx *cctx_first;
165	static int cctx_count, cctx_idle;	205	static int cctx_count, cctx_idle;
166		206
167	enum {	207	enum {
…		…
185	void idle_sp; / sp of top-level transfer/schedule/cede call */	225	void idle_sp; / sp of top-level transfer/schedule/cede call */
186	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 */
187	JMPENV *top_env;	227	JMPENV *top_env;
188	coro_context cctx;	228	coro_context cctx;
189		229
		230	U32 gen;
190	#if CORO_USE_VALGRIND	231	#if CORO_USE_VALGRIND
191	int valgrind_id;	232	int valgrind_id;
192	#endif	233	#endif
193	unsigned char flags;	234	unsigned char flags;
194	} coro_cctx;	235	} coro_cctx;
…		…
253	#define PRIO_IDLE -3	294	#define PRIO_IDLE -3
254	#define PRIO_MIN -4	295	#define PRIO_MIN -4
255		296
256	/* for Coro.pm */	297	/* for Coro.pm */
257	static SV *coro_current;	298	static SV *coro_current;
		299	static SV *coro_readyhook;
258	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	300	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
259	static int coro_nready;	301	static int coro_nready;
260	static struct coro *coro_first;	302	static struct coro *coro_first;
261		303
262	/ lowlevel stuff ********************************************************/	304	/ lowlevel stuff ********************************************************/
263		305
264	static SV *	306	static SV *
265	coro_get_sv (pTHX_ const char *name, int create)	307	coro_get_sv (pTHX_ const char *name, int create)
266	{	308	{
267	#if PERL_VERSION_ATLEAST (5,9,0)	309	#if PERL_VERSION_ATLEAST (5,10,0)
268	/* 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 */
269	get_sv (name, create);	311	get_sv (name, create);
270	#endif	312	#endif
271	return get_sv (name, create);	313	return get_sv (name, create);
272	}	314	}
273		315
274	static AV *	316	static AV *
275	coro_get_av (pTHX_ const char *name, int create)	317	coro_get_av (pTHX_ const char *name, int create)
276	{	318	{
277	#if PERL_VERSION_ATLEAST (5,9,0)	319	#if PERL_VERSION_ATLEAST (5,10,0)
278	/* 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 */
279	get_av (name, create);	321	get_av (name, create);
280	#endif	322	#endif
281	return get_av (name, create);	323	return get_av (name, create);
282	}	324	}
283		325
284	static HV *	326	static HV *
285	coro_get_hv (pTHX_ const char *name, int create)	327	coro_get_hv (pTHX_ const char *name, int create)
286	{	328	{
287	#if PERL_VERSION_ATLEAST (5,9,0)	329	#if PERL_VERSION_ATLEAST (5,10,0)
288	/* 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 */
289	get_hv (name, create);	331	get_hv (name, create);
290	#endif	332	#endif
291	return get_hv (name, create);	333	return get_hv (name, create);
292	}	334	}
…		…
297	AV *padlist = CvPADLIST (cv);	339	AV *padlist = CvPADLIST (cv);
298	AV newpadlist, newpad;	340	AV newpadlist, newpad;
299		341
300	newpadlist = newAV ();	342	newpadlist = newAV ();
301	AvREAL_off (newpadlist);	343	AvREAL_off (newpadlist);
302	#if PERL_VERSION_ATLEAST (5,9,0)	344	#if PERL_VERSION_ATLEAST (5,10,0)
303	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	345	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
304	#else	346	#else
305	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	347	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
306	#endif	348	#endif
307	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	349	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
308	--AvFILLp (padlist);	350	--AvFILLp (padlist);
309		351
310	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	352	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
311	av_store (newpadlist, 1, (SV *)newpad);	353	av_store (newpadlist, 1, (SV *)newpad);
312		354
313	return newpadlist;	355	return newpadlist;
314	}	356	}
315		357
…		…
345		387
346	/* casting is fun. */	388	/* casting is fun. */
347	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	389	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
348	free_padlist (aTHX_ padlist);	390	free_padlist (aTHX_ padlist);
349		391
350	SvREFCNT_dec (av);	392	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
351		393
352	return 0;	394	return 0;
353	}	395	}
354		396
355	#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
356		399
357	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	};
358		404
359	#define CORO_MAGIC(cv) \	405	#define CORO_MAGIC(sv, type) \
360	SvMAGIC (cv) \	406	SvMAGIC (sv) \
361	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	407	? SvMAGIC (sv)->mg_type == type \
362	? SvMAGIC (cv) \	408	? SvMAGIC (sv) \
363	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	409	: mg_find (sv, type) \
364	: 0	410	: 0
365		411
366	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 *
367	SvSTATE_ (pTHX_ SV *coro)	416	SvSTATE_ (pTHX_ SV *coro)
368	{	417	{
369	HV *stash;	418	HV *stash;
370	MAGIC *mg;	419	MAGIC *mg;
371		420
…		…
381	/* very slow, but rare, check */	430	/* very slow, but rare, check */
382	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	431	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
383	croak ("Coro::State object required");	432	croak ("Coro::State object required");
384	}	433	}
385		434
386	mg = CORO_MAGIC (coro);	435	mg = CORO_MAGIC_state (coro);
387	return (struct coro *)mg->mg_ptr;	436	return (struct coro *)mg->mg_ptr;
388	}	437	}
389		438
390	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	439	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
391		440
392	/* the next two functions merely cache the padlists */	441	/* the next two functions merely cache the padlists */
393	static void	442	static void
394	get_padlist (pTHX_ CV *cv)	443	get_padlist (pTHX_ CV *cv)
395	{	444	{
396	MAGIC *mg = CORO_MAGIC (cv);	445	MAGIC *mg = CORO_MAGIC_cv (cv);
397	AV *av;	446	AV *av;
398		447
399	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	448	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
400	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	449	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
401	else	450	else
402	{	451	{
403	#if CORO_PREFER_PERL_FUNCTIONS	452	#if CORO_PREFER_PERL_FUNCTIONS
404	/* this is probably cleaner, but also slower? */	453	/* this is probably cleaner? but also slower! */
		454	/* in practise, it seems to be less stable */
405	CV *cp = Perl_cv_clone (cv);	455	CV *cp = Perl_cv_clone (cv);
406	CvPADLIST (cv) = CvPADLIST (cp);	456	CvPADLIST (cv) = CvPADLIST (cp);
407	CvPADLIST (cp) = 0;	457	CvPADLIST (cp) = 0;
408	SvREFCNT_dec (cp);	458	SvREFCNT_dec (cp);
409	#else	459	#else
…		…
413	}	463	}
414		464
415	static void	465	static void
416	put_padlist (pTHX_ CV *cv)	466	put_padlist (pTHX_ CV *cv)
417	{	467	{
418	MAGIC *mg = CORO_MAGIC (cv);	468	MAGIC *mg = CORO_MAGIC_cv (cv);
419	AV *av;	469	AV *av;
420		470
421	if (expect_false (!mg))	471	if (expect_false (!mg))
422	{	472	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
423	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
424	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
425	mg->mg_virtual = &vtbl_coro;
426	mg->mg_obj = (SV *)newAV ();
427	}
428		473
429	av = (AV *)mg->mg_obj;	474	av = (AV *)mg->mg_obj;
430		475
431	if (expect_false (AvFILLp (av) >= AvMAX (av)))	476	if (expect_false (AvFILLp (av) >= AvMAX (av)))
432	av_extend (av, AvMAX (av) + 1);	477	av_extend (av, AvMAX (av) + 1);
…		…
450	GvSV (irsgv) = slot->irsgv;	495	GvSV (irsgv) = slot->irsgv;
451		496
452	#define VAR(name,type) PL_ ## name = slot->name;	497	#define VAR(name,type) PL_ ## name = slot->name;
453	# include "state.h"	498	# include "state.h"
454	#undef VAR	499	#undef VAR
455
456	/hv_store (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, SvREFCNT_inc (sv_diehook ), 0);/
457	/hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, SvREFCNT_inc (sv_warnhook), 0);/
458		500
459	{	501	{
460	dSP;	502	dSP;
461		503
462	CV *cv;	504	CV *cv;
…		…
501		543
502	if (expect_true (CvDEPTH (cv)))	544	if (expect_true (CvDEPTH (cv)))
503	{	545	{
504	EXTEND (SP, 3);	546	EXTEND (SP, 3);
505	PUSHs ((SV *)CvPADLIST (cv));	547	PUSHs ((SV *)CvPADLIST (cv));
506	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	548	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
507	PUSHs ((SV *)cv);	549	PUSHs ((SV *)cv);
508		550
509	CvDEPTH (cv) = 0;	551	CvDEPTH (cv) = 0;
510	get_padlist (aTHX_ cv);	552	get_padlist (aTHX_ cv);
511	}	553	}
…		…
591		633
592	New(54,PL_savestack,24,ANY);	634	New(54,PL_savestack,24,ANY);
593	PL_savestack_ix = 0;	635	PL_savestack_ix = 0;
594	PL_savestack_max = 24;	636	PL_savestack_max = 24;
595		637
596	#if !PERL_VERSION_ATLEAST (5,9,0)	638	#if !PERL_VERSION_ATLEAST (5,10,0)
597	New(54,PL_retstack,4,OP*);	639	New(54,PL_retstack,4,OP*);
598	PL_retstack_ix = 0;	640	PL_retstack_ix = 0;
599	PL_retstack_max = 4;	641	PL_retstack_max = 4;
600	#endif	642	#endif
601	}	643	}
…		…
603		645
604	/*	646	/*
605	* destroy the stacks, the callchain etc...	647	* destroy the stacks, the callchain etc...
606	*/	648	*/
607	static void	649	static void
608	coro_destroy_stacks (pTHX)	650	coro_destruct_stacks (pTHX)
609	{	651	{
610	while (PL_curstackinfo->si_next)	652	while (PL_curstackinfo->si_next)
611	PL_curstackinfo = PL_curstackinfo->si_next;	653	PL_curstackinfo = PL_curstackinfo->si_next;
612		654
613	while (PL_curstackinfo)	655	while (PL_curstackinfo)
…		…
624		666
625	Safefree (PL_tmps_stack);	667	Safefree (PL_tmps_stack);
626	Safefree (PL_markstack);	668	Safefree (PL_markstack);
627	Safefree (PL_scopestack);	669	Safefree (PL_scopestack);
628	Safefree (PL_savestack);	670	Safefree (PL_savestack);
629	#if !PERL_VERSION_ATLEAST (5,9,0)	671	#if !PERL_VERSION_ATLEAST (5,10,0)
630	Safefree (PL_retstack);	672	Safefree (PL_retstack);
631	#endif	673	#endif
632	}	674	}
633		675
634	static size_t	676	static size_t
…		…
650	#undef VAR	692	#undef VAR
651	}	693	}
652	else	694	else
653	slot = coro->slot;	695	slot = coro->slot;
654		696
		697	if (slot)
		698	{
655	rss += sizeof (slot->curstackinfo);	699	rss += sizeof (slot->curstackinfo);
656	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	700	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
657	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 *);
658	rss += slot->tmps_max * sizeof (SV *);	702	rss += slot->tmps_max * sizeof (SV *);
659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	703	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
660	rss += slot->scopestack_max * sizeof (I32);	704	rss += slot->scopestack_max * sizeof (I32);
661	rss += slot->savestack_max * sizeof (ANY);	705	rss += slot->savestack_max * sizeof (ANY);
662		706
663	#if !PERL_VERSION_ATLEAST (5,9,0)	707	#if !PERL_VERSION_ATLEAST (5,10,0)
664	rss += slot->retstack_max * sizeof (OP *);	708	rss += slot->retstack_max * sizeof (OP *);
665	#endif	709	#endif
		710	}
666	}	711	}
667		712
668	return rss;	713	return rss;
669	}	714	}
670		715
		716	/ set stacklevel support ************************************************/
		717
		718	/* we sometimes need to create the effect of pp_set_stacklevel calling us */
		719	#define SSL_HEAD (void)0
		720	/* we somtimes need to create the effect of leaving via pp_set_stacklevel */
		721	#define SSL_TAIL set_stacklevel_tail (aTHX)
		722
		723	INLINE void
		724	set_stacklevel_tail (pTHX)
		725	{
		726	dSP;
		727	int gimme = GIMME_V;
		728
		729	if (gimme == G_SCALAR)
		730	XPUSHs (&PL_sv_undef);
		731
		732	PUTBACK;
		733	}
		734
671	/ coroutine stack handling **********************************************/	735	/ coroutine stack handling **********************************************/
		736
		737	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		738	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		739	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		740
		741	/* apparently < 5.8.8 */
		742	#ifndef MgPV_nolen_const
		743	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		744	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		745	(const char*)(mg)->mg_ptr)
		746	#endif
		747
		748	/*
		749	* This overrides the default magic get method of %SIG elements.
		750	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		751	* and instead of tryign to save and restore the hash elements, we just provide
		752	* readback here.
		753	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		754	* not expecting this to actually change the hook. This is a potential problem
		755	* when a schedule happens then, but we ignore this.
		756	*/
		757	static int
		758	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		759	{
		760	const char *s = MgPV_nolen_const (mg);
		761
		762	if (*s == '_')
		763	{
		764	SV **svp = 0;
		765
		766	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		767	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		768
		769	if (svp)
		770	{
		771	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		772	return 0;
		773	}
		774	}
		775
		776	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		777	}
		778
		779	static int
		780	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		781	{
		782	const char *s = MgPV_nolen_const (mg);
		783
		784	if (*s == '_')
		785	{
		786	SV **svp = 0;
		787
		788	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		789	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		790
		791	if (svp)
		792	{
		793	SV old = svp;
		794	*svp = 0;
		795	SvREFCNT_dec (old);
		796	return 0;
		797	}
		798	}
		799
		800	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		801	}
		802
		803	static int
		804	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		805	{
		806	const char *s = MgPV_nolen_const (mg);
		807
		808	if (*s == '_')
		809	{
		810	SV **svp = 0;
		811
		812	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		813	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		814
		815	if (svp)
		816	{
		817	SV old = svp;
		818	*svp = newSVsv (sv);
		819	SvREFCNT_dec (old);
		820	return 0;
		821	}
		822	}
		823
		824	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		825	}
672		826
673	static void	827	static void
674	coro_setup (pTHX_ struct coro *coro)	828	coro_setup (pTHX_ struct coro *coro)
675	{	829	{
676	/*	830	/*
…		…
685	PL_curpm = 0;	839	PL_curpm = 0;
686	PL_curpad = 0;	840	PL_curpad = 0;
687	PL_localizing = 0;	841	PL_localizing = 0;
688	PL_dirty = 0;	842	PL_dirty = 0;
689	PL_restartop = 0;	843	PL_restartop = 0;
		844	#if PERL_VERSION_ATLEAST (5,10,0)
		845	PL_parser = 0;
		846	#endif
		847
		848	/* recreate the die/warn hooks */
690	PL_diehook = 0; hv_store (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, SvREFCNT_inc (sv_diehook ), 0);	849	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
691	PL_warnhook = 0; hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, SvREFCNT_inc (sv_warnhook), 0);	850	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
692		851
693	GvSV (PL_defgv) = newSV (0);	852	GvSV (PL_defgv) = newSV (0);
694	GvAV (PL_defgv) = coro->args; coro->args = 0;	853	GvAV (PL_defgv) = coro->args; coro->args = 0;
695	GvSV (PL_errgv) = newSV (0);	854	GvSV (PL_errgv) = newSV (0);
696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	855	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
697	PL_rs = newSVsv (GvSV (irsgv));	856	PL_rs = newSVsv (GvSV (irsgv));
698	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	857	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
699		858
700	{	859	{
701	dSP;	860	dSP;
702	LOGOP myop;	861	UNOP myop;
703		862
704	Zero (&myop, 1, LOGOP);	863	Zero (&myop, 1, UNOP);
705	myop.op_next = Nullop;	864	myop.op_next = Nullop;
706	myop.op_flags = OPf_WANT_VOID;	865	myop.op_flags = OPf_WANT_VOID;
707		866
708	PUSHMARK (SP);	867	PUSHMARK (SP);
709	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	868	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	871	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
713	SPAGAIN;	872	SPAGAIN;
714	}	873	}
715		874
716	/* this newly created coroutine might be run on an existing cctx which most	875	/* this newly created coroutine might be run on an existing cctx which most
717	* likely was suspended in set_stacklevel, called from entersub.	876	* likely was suspended in set_stacklevel, called from pp_set_stacklevel,
718	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,	877	* so we have to emulate entering pp_set_stacklevel here.
719	* so we ENTER here for symmetry
720	*/	878	*/
721	ENTER;	879	SSL_HEAD;
722	}	880	}
723		881
724	static void	882	static void
725	coro_destroy (pTHX_ struct coro *coro)	883	coro_destruct (pTHX_ struct coro *coro)
726	{	884	{
727	if (!IN_DESTRUCT)	885	if (!IN_DESTRUCT)
728	{	886	{
729	/* restore all saved variables and stuff */	887	/* restore all saved variables and stuff */
730	LEAVE_SCOPE (0);	888	LEAVE_SCOPE (0);
…		…
752	SvREFCNT_dec (PL_warnhook);	910	SvREFCNT_dec (PL_warnhook);
753		911
754	SvREFCNT_dec (coro->saved_deffh);	912	SvREFCNT_dec (coro->saved_deffh);
755	SvREFCNT_dec (coro->throw);	913	SvREFCNT_dec (coro->throw);
756		914
757	coro_destroy_stacks (aTHX);	915	coro_destruct_stacks (aTHX);
758	}	916	}
759		917
760	static void	918	INLINE void
761	free_coro_mortal (pTHX)	919	free_coro_mortal (pTHX)
762	{	920	{
763	if (expect_true (coro_mortal))	921	if (expect_true (coro_mortal))
764	{	922	{
765	SvREFCNT_dec (coro_mortal);	923	SvREFCNT_dec (coro_mortal);
…		…
799	: cx->blk_gimme == G_SCALAR ? bot + 1	957	: cx->blk_gimme == G_SCALAR ? bot + 1
800	: bot;	958	: bot;
801		959
802	av_extend (av, top - bot);	960	av_extend (av, top - bot);
803	while (bot < top)	961	while (bot < top)
804	av_push (av, SvREFCNT_inc (*bot++));	962	av_push (av, SvREFCNT_inc_NN (*bot++));
805		963
806	PL_runops = RUNOPS_DEFAULT;	964	PL_runops = RUNOPS_DEFAULT;
807	ENTER;	965	ENTER;
808	SAVETMPS;	966	SAVETMPS;
809	EXTEND (SP, 3);	967	EXTEND (SP, 3);
…		…
847	SAVETMPS;	1005	SAVETMPS;
848	EXTEND (SP, 3);	1006	EXTEND (SP, 3);
849	PUSHMARK (SP);	1007	PUSHMARK (SP);
850	PUSHs (&PL_sv_yes);	1008	PUSHs (&PL_sv_yes);
851	PUSHs (fullname);	1009	PUSHs (fullname);
852	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1010	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
853	PUTBACK;	1011	PUTBACK;
854	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1012	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
855	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1013	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
856	SPAGAIN;	1014	SPAGAIN;
857	FREETMPS;	1015	FREETMPS;
…		…
889		1047
890	TAINT_NOT;	1048	TAINT_NOT;
891	return 0;	1049	return 0;
892	}	1050	}
893		1051
		1052	static void
		1053	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1054	{
		1055	ta->prev = (struct coro *)cctx;
		1056	ta->next = 0;
		1057	}
		1058
894	/* inject a fake call to Coro::State::_cctx_init into the execution */	1059	/* inject a fake call to Coro::State::_cctx_init into the execution */
895	/* _cctx_init should be careful, as it could be called at almost any time */	1060	/* _cctx_init should be careful, as it could be called at almost any time */
896	/* during execution of a perl program */	1061	/* during execution of a perl program */
		1062	/* also initialises PL_top_env */
897	static void NOINLINE	1063	static void NOINLINE
898	cctx_prepare (pTHX_ coro_cctx *cctx)	1064	cctx_prepare (pTHX_ coro_cctx *cctx)
899	{	1065	{
900	dSP;	1066	dSP;
901	LOGOP myop;	1067	UNOP myop;
902		1068
903	PL_top_env = &PL_start_env;	1069	PL_top_env = &PL_start_env;
904		1070
905	if (cctx->flags & CC_TRACE)	1071	if (cctx->flags & CC_TRACE)
906	PL_runops = runops_trace;	1072	PL_runops = runops_trace;
907		1073
908	Zero (&myop, 1, LOGOP);	1074	Zero (&myop, 1, UNOP);
909	myop.op_next = PL_op;	1075	myop.op_next = PL_op;
910	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1076	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
911		1077
912	PUSHMARK (SP);	1078	PUSHMARK (SP);
913	EXTEND (SP, 2);	1079	EXTEND (SP, 2);
914	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1080	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
915	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1081	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
916	PUTBACK;	1082	PUTBACK;
917	PL_op = (OP *)&myop;	1083	PL_op = (OP *)&myop;
918	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1084	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
919	SPAGAIN;	1085	SPAGAIN;
920	}	1086	}
921		1087
		1088	/* the tail of transfer: execute stuff we can only do after a transfer */
		1089	INLINE void
		1090	transfer_tail (pTHX)
		1091	{
		1092	struct coro next = (struct coro )transfer_next;
		1093	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1094	assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
		1095
		1096	free_coro_mortal (aTHX);
		1097	UNLOCK;
		1098
		1099	if (expect_false (next->throw))
		1100	{
		1101	SV *exception = sv_2mortal (next->throw);
		1102
		1103	next->throw = 0;
		1104	sv_setsv (ERRSV, exception);
		1105	croak (0);
		1106	}
		1107	}
		1108
922	/*	1109	/*
923	* this is a _very_ stripped down perl interpreter ;)	1110	* this is a _very_ stripped down perl interpreter ;)
924	*/	1111	*/
925	static void	1112	static void
926	cctx_run (void *arg)	1113	cctx_run (void *arg)
927	{	1114	{
		1115	#ifdef USE_ITHREADS
		1116	# if CORO_PTHREAD
		1117	PERL_SET_CONTEXT (coro_thx);
		1118	# endif
		1119	#endif
		1120	{
928	dTHX;	1121	dTHX;
929		1122
930	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1123	/* we are the alternative tail to pp_set_stacklevel */
931	UNLOCK;	1124	/* so do the same things here */
		1125	SSL_TAIL;
932		1126
933	/* we now skip the entersub that lead to transfer() */	1127	/* we now skip the op that did lead to transfer() */
934	PL_op = PL_op->op_next;	1128	PL_op = PL_op->op_next;
935		1129
936	/* inject a fake subroutine call to cctx_init */	1130	/* inject a fake subroutine call to cctx_init */
937	cctx_prepare (aTHX_ (coro_cctx *)arg);	1131	cctx_prepare (aTHX_ (coro_cctx *)arg);
938		1132
		1133	/* cctx_run is the alternative tail of transfer() */
		1134	transfer_tail (aTHX);
		1135
939	/* somebody or something will hit me for both perl_run and PL_restartop */	1136	/* somebody or something will hit me for both perl_run and PL_restartop */
940	PL_restartop = PL_op;	1137	PL_restartop = PL_op;
941	perl_run (PL_curinterp);	1138	perl_run (PL_curinterp);
942		1139
943	/*	1140	/*
944	* If perl-run returns we assume exit() was being called or the coro	1141	* If perl-run returns we assume exit() was being called or the coro
945	* fell off the end, which seems to be the only valid (non-bug)	1142	* fell off the end, which seems to be the only valid (non-bug)
946	* reason for perl_run to return. We try to exit by jumping to the	1143	* reason for perl_run to return. We try to exit by jumping to the
947	* bootstrap-time "top" top_env, as we cannot restore the "main"	1144	* bootstrap-time "top" top_env, as we cannot restore the "main"
948	* coroutine as Coro has no such concept	1145	* coroutine as Coro has no such concept
949	*/	1146	*/
950	PL_top_env = main_top_env;	1147	PL_top_env = main_top_env;
951	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1148	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1149	}
952	}	1150	}
953		1151
954	static coro_cctx *	1152	static coro_cctx *
955	cctx_new ()	1153	cctx_new ()
956	{	1154	{
957	coro_cctx *cctx;	1155	coro_cctx *cctx;
		1156
		1157	++cctx_count;
		1158	New (0, cctx, 1, coro_cctx);
		1159
		1160	cctx->gen = cctx_gen;
		1161	cctx->flags = 0;
		1162	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1163
		1164	return cctx;
		1165	}
		1166
		1167	/* create a new cctx only suitable as source */
		1168	static coro_cctx *
		1169	cctx_new_empty ()
		1170	{
		1171	coro_cctx *cctx = cctx_new ();
		1172
		1173	cctx->sptr = 0;
		1174	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1175
		1176	return cctx;
		1177	}
		1178
		1179	/* create a new cctx suitable as destination/running a perl interpreter */
		1180	static coro_cctx *
		1181	cctx_new_run ()
		1182	{
		1183	coro_cctx *cctx = cctx_new ();
958	void *stack_start;	1184	void *stack_start;
959	size_t stack_size;	1185	size_t stack_size;
960		1186
961	++cctx_count;
962
963	Newz (0, cctx, 1, coro_cctx);
964
965	#if HAVE_MMAP	1187	#if HAVE_MMAP
966	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1188	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
967	/* mmap supposedly does allocate-on-write for us */	1189	/* mmap supposedly does allocate-on-write for us */
968	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1190	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
969		1191
970	if (cctx->sptr != (void *)-1)	1192	if (cctx->sptr != (void *)-1)
971	{	1193	{
972	# if CORO_STACKGUARD	1194	#if CORO_STACKGUARD
973	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1195	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
974	# endif	1196	#endif
975	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1197	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
976	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1198	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
977	cctx->flags \|= CC_MAPPED;	1199	cctx->flags \|= CC_MAPPED;
978	}	1200	}
979	else	1201	else
980	#endif	1202	#endif
981	{	1203	{
982	cctx->ssize = coro_stacksize * (long)sizeof (long);	1204	cctx->ssize = cctx_stacksize * (long)sizeof (long);
983	New (0, cctx->sptr, coro_stacksize, long);	1205	New (0, cctx->sptr, cctx_stacksize, long);
984		1206
985	if (!cctx->sptr)	1207	if (!cctx->sptr)
986	{	1208	{
987	perror ("FATAL: unable to allocate stack for coroutine");	1209	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
988	_exit (EXIT_FAILURE);	1210	_exit (EXIT_FAILURE);
989	}	1211	}
990		1212
991	stack_start = cctx->sptr;	1213	stack_start = cctx->sptr;
992	stack_size = cctx->ssize;	1214	stack_size = cctx->ssize;
993	}	1215	}
994		1216
995	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1217	#if CORO_USE_VALGRIND
		1218	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1219	#endif
		1220
996	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1221	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
997		1222
998	return cctx;	1223	return cctx;
999	}	1224	}
1000		1225
…		…
1003	{	1228	{
1004	if (!cctx)	1229	if (!cctx)
1005	return;	1230	return;
1006		1231
1007	--cctx_count;	1232	--cctx_count;
		1233	coro_destroy (&cctx->cctx);
1008		1234
		1235	/* coro_transfer creates new, empty cctx's */
		1236	if (cctx->sptr)
		1237	{
1009	#if CORO_USE_VALGRIND	1238	#if CORO_USE_VALGRIND
1010	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1239	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1011	#endif	1240	#endif
1012		1241
1013	#if HAVE_MMAP	1242	#if HAVE_MMAP
1014	if (cctx->flags & CC_MAPPED)	1243	if (cctx->flags & CC_MAPPED)
1015	munmap (cctx->sptr, cctx->ssize);	1244	munmap (cctx->sptr, cctx->ssize);
1016	else	1245	else
1017	#endif	1246	#endif
1018	Safefree (cctx->sptr);	1247	Safefree (cctx->sptr);
		1248	}
1019		1249
1020	Safefree (cctx);	1250	Safefree (cctx);
1021	}	1251	}
1022		1252
1023	/* wether this cctx should be destructed */	1253	/* wether this cctx should be destructed */
1024	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1254	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1025		1255
1026	static coro_cctx *	1256	static coro_cctx *
1027	cctx_get (pTHX)	1257	cctx_get (pTHX)
1028	{	1258	{
1029	while (expect_true (cctx_first))	1259	while (expect_true (cctx_first))
…		…
1036	return cctx;	1266	return cctx;
1037		1267
1038	cctx_destroy (cctx);	1268	cctx_destroy (cctx);
1039	}	1269	}
1040		1270
1041	return cctx_new ();	1271	return cctx_new_run ();
1042	}	1272	}
1043		1273
1044	static void	1274	static void
1045	cctx_put (coro_cctx *cctx)	1275	cctx_put (coro_cctx *cctx)
1046	{	1276	{
		1277	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1278
1047	/* free another cctx if overlimit */	1279	/* free another cctx if overlimit */
1048	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1280	if (expect_false (cctx_idle >= cctx_max_idle))
1049	{	1281	{
1050	coro_cctx *first = cctx_first;	1282	coro_cctx *first = cctx_first;
1051	cctx_first = first->next;	1283	cctx_first = first->next;
1052	--cctx_idle;	1284	--cctx_idle;
1053		1285
…		…
1073	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1305	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1074		1306
1075	if (expect_false (next->flags & CF_DESTROYED))	1307	if (expect_false (next->flags & CF_DESTROYED))
1076	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1308	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1077		1309
1078	if (
1079	#if PERL_VERSION_ATLEAST (5,9,0)	1310	#if !PERL_VERSION_ATLEAST (5,10,0)
1080	expect_false (PL_parser)
1081	#else
1082	expect_false (PL_lex_state != LEX_NOTPARSING)	1311	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1083	#endif
1084	)
1085	croak ("Coro::State::transfer called while parsing, but this is not supported");	1312	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1313	#endif
1086	}	1314	}
1087	}	1315	}
1088		1316
1089	/* always use the TRANSFER macro */	1317	/* always use the TRANSFER macro */
1090	static void NOINLINE	1318	static void NOINLINE
1091	transfer (pTHX_ struct coro prev, struct coro next)	1319	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1092	{	1320	{
1093	dSTACKLEVEL;	1321	dSTACKLEVEL;
1094		1322
1095	/* sometimes transfer is only called to set idle_sp */	1323	/* sometimes transfer is only called to set idle_sp */
1096	if (expect_false (!next))	1324	if (expect_false (!next))
…		…
1102	{	1330	{
1103	coro_cctx *prev__cctx;	1331	coro_cctx *prev__cctx;
1104		1332
1105	if (expect_false (prev->flags & CF_NEW))	1333	if (expect_false (prev->flags & CF_NEW))
1106	{	1334	{
1107	/* create a new empty context */	1335	/* create a new empty/source context */
1108	Newz (0, prev->cctx, 1, coro_cctx);	1336	prev->cctx = cctx_new_empty ();
1109	prev->flags &= ~CF_NEW;	1337	prev->flags &= ~CF_NEW;
1110	prev->flags \|= CF_RUNNING;	1338	prev->flags \|= CF_RUNNING;
1111	}	1339	}
1112		1340
1113	prev->flags &= ~CF_RUNNING;	1341	prev->flags &= ~CF_RUNNING;
1114	next->flags \|= CF_RUNNING;	1342	next->flags \|= CF_RUNNING;
1115		1343
1116	LOCK;	1344	LOCK;
		1345
		1346	/* first get rid of the old state */
		1347	save_perl (aTHX_ prev);
1117		1348
1118	if (expect_false (next->flags & CF_NEW))	1349	if (expect_false (next->flags & CF_NEW))
1119	{	1350	{
1120	/* need to start coroutine */	1351	/* need to start coroutine */
1121	next->flags &= ~CF_NEW;	1352	next->flags &= ~CF_NEW;
1122	/* first get rid of the old state */
1123	save_perl (aTHX_ prev);
1124	/* setup coroutine call */	1353	/* setup coroutine call */
1125	coro_setup (aTHX_ next);	1354	coro_setup (aTHX_ next);
1126	}	1355	}
1127	else	1356	else
1128	{
1129	/* coroutine already started */
1130	save_perl (aTHX_ prev);
1131	load_perl (aTHX_ next);	1357	load_perl (aTHX_ next);
1132	}
1133		1358
1134	prev__cctx = prev->cctx;	1359	prev__cctx = prev->cctx;
1135		1360
1136	/* possibly "free" the cctx */	1361	/* possibly untie and reuse the cctx */
1137	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1362	if (expect_true (
		1363	prev__cctx->idle_sp == STACKLEVEL
		1364	&& !(prev__cctx->flags & CC_TRACE)
		1365	&& !force_cctx
		1366	))
1138	{	1367	{
1139	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1368	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1140	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1369	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1141		1370
1142	prev->cctx = 0;	1371	prev->cctx = 0;
1143		1372
1144	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1373	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1145	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1374	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1152		1381
1153	++next->usecount;	1382	++next->usecount;
1154		1383
1155	if (expect_true (!next->cctx))	1384	if (expect_true (!next->cctx))
1156	next->cctx = cctx_get (aTHX);	1385	next->cctx = cctx_get (aTHX);
		1386
		1387	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1388	transfer_next = next;
1157		1389
1158	if (expect_false (prev__cctx != next->cctx))	1390	if (expect_false (prev__cctx != next->cctx))
1159	{	1391	{
1160	prev__cctx->top_env = PL_top_env;	1392	prev__cctx->top_env = PL_top_env;
1161	PL_top_env = next->cctx->top_env;	1393	PL_top_env = next->cctx->top_env;
1162	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1394	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1163	}	1395	}
1164		1396
1165	free_coro_mortal (aTHX);	1397	transfer_tail (aTHX);
1166	UNLOCK;
1167
1168	if (expect_false (prev->throw \|\| next->throw))
1169	{
1170	struct coro *coro = SvSTATE (coro_current);
1171
1172	if (coro->throw)
1173	{
1174	SV *exception = coro->throw;
1175	coro->throw = 0;
1176	sv_setsv (ERRSV, exception);
1177	croak (0);
1178	}
1179	}
1180	}	1398	}
1181	}	1399	}
1182		1400
1183	struct transfer_args
1184	{
1185	struct coro prev, next;
1186	};
1187
1188	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1401	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1189	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1402	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1190		1403
1191	/ high level stuff ******************************************************/	1404	/ high level stuff ******************************************************/
1192		1405
1193	static int	1406	static int
…		…
1217	croak ("FATAL: tried to destroy currently running coroutine");	1430	croak ("FATAL: tried to destroy currently running coroutine");
1218		1431
1219	save_perl (aTHX_ &temp);	1432	save_perl (aTHX_ &temp);
1220	load_perl (aTHX_ coro);	1433	load_perl (aTHX_ coro);
1221		1434
1222	coro_destroy (aTHX_ coro);	1435	coro_destruct (aTHX_ coro);
1223		1436
1224	load_perl (aTHX_ &temp);	1437	load_perl (aTHX_ &temp);
1225		1438
1226	coro->slot = 0;	1439	coro->slot = 0;
1227	}	1440	}
…		…
1287	{	1500	{
1288	dTHX;	1501	dTHX;
1289	struct transfer_args ta;	1502	struct transfer_args ta;
1290		1503
1291	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1504	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1292	TRANSFER (ta);	1505	TRANSFER (ta, 1);
1293	}	1506	}
1294		1507
1295	/ Coro ******************************************************************/	1508	/ Coro ******************************************************************/
1296		1509
1297	static void	1510	static void
…		…
1299	{	1512	{
1300	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1513	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1301	}	1514	}
1302		1515
1303	static SV *	1516	static SV *
1304	coro_deq (pTHX_ int min_prio)	1517	coro_deq (pTHX)
1305	{	1518	{
1306	int prio = PRIO_MAX - PRIO_MIN;	1519	int prio;
1307		1520
1308	min_prio -= PRIO_MIN;
1309	if (min_prio < 0)
1310	min_prio = 0;
1311
1312	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1521	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1313	if (AvFILLp (coro_ready [prio]) >= 0)	1522	if (AvFILLp (coro_ready [prio]) >= 0)
1314	return av_shift (coro_ready [prio]);	1523	return av_shift (coro_ready [prio]);
1315		1524
1316	return 0;	1525	return 0;
1317	}	1526	}
…		…
1319	static int	1528	static int
1320	api_ready (SV *coro_sv)	1529	api_ready (SV *coro_sv)
1321	{	1530	{
1322	dTHX;	1531	dTHX;
1323	struct coro *coro;	1532	struct coro *coro;
		1533	SV *sv_hook;
		1534	void (*xs_hook)(void);
1324		1535
1325	if (SvROK (coro_sv))	1536	if (SvROK (coro_sv))
1326	coro_sv = SvRV (coro_sv);	1537	coro_sv = SvRV (coro_sv);
1327		1538
1328	coro = SvSTATE (coro_sv);	1539	coro = SvSTATE (coro_sv);
…		…
1331	return 0;	1542	return 0;
1332		1543
1333	coro->flags \|= CF_READY;	1544	coro->flags \|= CF_READY;
1334		1545
1335	LOCK;	1546	LOCK;
		1547
		1548	sv_hook = coro_nready ? 0 : coro_readyhook;
		1549	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1550
1336	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1551	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1337	++coro_nready;	1552	++coro_nready;
		1553
1338	UNLOCK;	1554	UNLOCK;
		1555
		1556	if (sv_hook)
		1557	{
		1558	dSP;
		1559
		1560	ENTER;
		1561	SAVETMPS;
		1562
		1563	PUSHMARK (SP);
		1564	PUTBACK;
		1565	call_sv (sv_hook, G_DISCARD);
		1566	SPAGAIN;
		1567
		1568	FREETMPS;
		1569	LEAVE;
		1570	}
		1571
		1572	if (xs_hook)
		1573	xs_hook ();
1339		1574
1340	return 1;	1575	return 1;
1341	}	1576	}
1342		1577
1343	static int	1578	static int
1344	api_is_ready (SV *coro_sv)	1579	api_is_ready (SV *coro_sv)
1345	{	1580	{
1346	dTHX;	1581	dTHX;
		1582
1347	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1583	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1348	}	1584	}
1349		1585
1350	static void	1586	INLINE void
1351	prepare_schedule (pTHX_ struct transfer_args *ta)	1587	prepare_schedule (pTHX_ struct transfer_args *ta)
1352	{	1588	{
1353	SV prev_sv, next_sv;	1589	SV prev_sv, next_sv;
1354		1590
1355	for (;;)	1591	for (;;)
1356	{	1592	{
1357	LOCK;	1593	LOCK;
1358	next_sv = coro_deq (aTHX_ PRIO_MIN);	1594	next_sv = coro_deq (aTHX);
1359		1595
1360	/* nothing to schedule: call the idle handler */	1596	/* nothing to schedule: call the idle handler */
1361	if (expect_false (!next_sv))	1597	if (expect_false (!next_sv))
1362	{	1598	{
1363	dSP;	1599	dSP;
…		…
1367	SAVETMPS;	1603	SAVETMPS;
1368		1604
1369	PUSHMARK (SP);	1605	PUSHMARK (SP);
1370	PUTBACK;	1606	PUTBACK;
1371	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1607	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1608	SPAGAIN;
1372		1609
1373	FREETMPS;	1610	FREETMPS;
1374	LEAVE;	1611	LEAVE;
1375	continue;	1612	continue;
1376	}	1613	}
…		…
1380	/* cannot transfer to destroyed coros, skip and look for next */	1617	/* cannot transfer to destroyed coros, skip and look for next */
1381	if (expect_false (ta->next->flags & CF_DESTROYED))	1618	if (expect_false (ta->next->flags & CF_DESTROYED))
1382	{	1619	{
1383	UNLOCK;	1620	UNLOCK;
1384	SvREFCNT_dec (next_sv);	1621	SvREFCNT_dec (next_sv);
1385	/* coro_nready is already taken care of by destroy */	1622	/* coro_nready has already been taken care of by destroy */
1386	continue;	1623	continue;
1387	}	1624	}
1388		1625
1389	--coro_nready;	1626	--coro_nready;
1390	UNLOCK;	1627	UNLOCK;
…		…
1393		1630
1394	/* free this only after the transfer */	1631	/* free this only after the transfer */
1395	prev_sv = SvRV (coro_current);	1632	prev_sv = SvRV (coro_current);
1396	ta->prev = SvSTATE (prev_sv);	1633	ta->prev = SvSTATE (prev_sv);
1397	TRANSFER_CHECK (*ta);	1634	TRANSFER_CHECK (*ta);
1398	assert (ta->next->flags & CF_READY);	1635	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1399	ta->next->flags &= ~CF_READY;	1636	ta->next->flags &= ~CF_READY;
1400	SvRV_set (coro_current, next_sv);	1637	SvRV_set (coro_current, next_sv);
1401		1638
1402	LOCK;	1639	LOCK;
1403	free_coro_mortal (aTHX);	1640	free_coro_mortal (aTHX);
1404	coro_mortal = prev_sv;	1641	coro_mortal = prev_sv;
1405	UNLOCK;	1642	UNLOCK;
1406	}	1643	}
1407		1644
1408	static void	1645	INLINE void
1409	prepare_cede (pTHX_ struct transfer_args *ta)	1646	prepare_cede (pTHX_ struct transfer_args *ta)
1410	{	1647	{
1411	api_ready (coro_current);	1648	api_ready (coro_current);
1412	prepare_schedule (aTHX_ ta);	1649	prepare_schedule (aTHX_ ta);
1413	}	1650	}
…		…
1431	{	1668	{
1432	dTHX;	1669	dTHX;
1433	struct transfer_args ta;	1670	struct transfer_args ta;
1434		1671
1435	prepare_schedule (aTHX_ &ta);	1672	prepare_schedule (aTHX_ &ta);
1436	TRANSFER (ta);	1673	TRANSFER (ta, 1);
1437	}	1674	}
1438		1675
1439	static int	1676	static int
1440	api_cede (void)	1677	api_cede (void)
1441	{	1678	{
…		…
1444		1681
1445	prepare_cede (aTHX_ &ta);	1682	prepare_cede (aTHX_ &ta);
1446		1683
1447	if (expect_true (ta.prev != ta.next))	1684	if (expect_true (ta.prev != ta.next))
1448	{	1685	{
1449	TRANSFER (ta);	1686	TRANSFER (ta, 1);
1450	return 1;	1687	return 1;
1451	}	1688	}
1452	else	1689	else
1453	return 0;	1690	return 0;
1454	}	1691	}
…		…
1459	dTHX;	1696	dTHX;
1460	struct transfer_args ta;	1697	struct transfer_args ta;
1461		1698
1462	if (prepare_cede_notself (aTHX_ &ta))	1699	if (prepare_cede_notself (aTHX_ &ta))
1463	{	1700	{
1464	TRANSFER (ta);	1701	TRANSFER (ta, 1);
1465	return 1;	1702	return 1;
1466	}	1703	}
1467	else	1704	else
1468	return 0;	1705	return 0;
1469	}	1706	}
…		…
1475	struct coro *coro = SvSTATE (coro_sv);	1712	struct coro *coro = SvSTATE (coro_sv);
1476		1713
1477	if (flags & CC_TRACE)	1714	if (flags & CC_TRACE)
1478	{	1715	{
1479	if (!coro->cctx)	1716	if (!coro->cctx)
1480	coro->cctx = cctx_new ();	1717	coro->cctx = cctx_new_run ();
1481	else if (!(coro->cctx->flags & CC_TRACE))	1718	else if (!(coro->cctx->flags & CC_TRACE))
1482	croak ("cannot enable tracing on coroutine with custom stack");	1719	croak ("cannot enable tracing on coroutine with custom stack");
1483		1720
1484	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1721	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1485	}	1722	}
…		…
1492	else	1729	else
1493	coro->slot->runops = RUNOPS_DEFAULT;	1730	coro->slot->runops = RUNOPS_DEFAULT;
1494	}	1731	}
1495	}	1732	}
1496		1733
		1734	#if 0
		1735	static int
		1736	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1737	{
		1738	AV *padlist;
		1739	AV av = (AV )mg->mg_obj;
		1740
		1741	abort ();
		1742
		1743	return 0;
		1744	}
		1745
		1746	static MGVTBL coro_gensub_vtbl = {
		1747	0, 0, 0, 0,
		1748	coro_gensub_free
		1749	};
		1750	#endif
		1751
		1752	/*****************************************************************************/
		1753	/* PerlIO::cede */
		1754
		1755	typedef struct
		1756	{
		1757	PerlIOBuf base;
		1758	NV next, every;
		1759	} PerlIOCede;
		1760
		1761	static IV
		1762	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1763	{
		1764	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1765
		1766	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1767	self->next = nvtime () + self->every;
		1768
		1769	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1770	}
		1771
		1772	static SV *
		1773	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1774	{
		1775	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1776
		1777	return newSVnv (self->every);
		1778	}
		1779
		1780	static IV
		1781	PerlIOCede_flush (pTHX_ PerlIO *f)
		1782	{
		1783	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1784	double now = nvtime ();
		1785
		1786	if (now >= self->next)
		1787	{
		1788	api_cede ();
		1789	self->next = now + self->every;
		1790	}
		1791
		1792	return PerlIOBuf_flush (aTHX_ f);
		1793	}
		1794
		1795	static PerlIO_funcs PerlIO_cede =
		1796	{
		1797	sizeof(PerlIO_funcs),
		1798	"cede",
		1799	sizeof(PerlIOCede),
		1800	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1801	PerlIOCede_pushed,
		1802	PerlIOBuf_popped,
		1803	PerlIOBuf_open,
		1804	PerlIOBase_binmode,
		1805	PerlIOCede_getarg,
		1806	PerlIOBase_fileno,
		1807	PerlIOBuf_dup,
		1808	PerlIOBuf_read,
		1809	PerlIOBuf_unread,
		1810	PerlIOBuf_write,
		1811	PerlIOBuf_seek,
		1812	PerlIOBuf_tell,
		1813	PerlIOBuf_close,
		1814	PerlIOCede_flush,
		1815	PerlIOBuf_fill,
		1816	PerlIOBase_eof,
		1817	PerlIOBase_error,
		1818	PerlIOBase_clearerr,
		1819	PerlIOBase_setlinebuf,
		1820	PerlIOBuf_get_base,
		1821	PerlIOBuf_bufsiz,
		1822	PerlIOBuf_get_ptr,
		1823	PerlIOBuf_get_cnt,
		1824	PerlIOBuf_set_ptrcnt,
		1825	};
		1826
		1827	/*****************************************************************************/
		1828
		1829	static const CV ssl_cv; / for quick consistency check */
		1830
		1831	static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
		1832	static SV *ssl_arg0;
		1833	static SV *ssl_arg1;
		1834
		1835	/* this restores the stack in the case we patched the entersub, to */
		1836	/* recreate the stack frame as perl will on following calls */
		1837	/* since entersub cleared the stack */
		1838	static OP *
		1839	pp_restore (pTHX)
		1840	{
		1841	dSP;
		1842
		1843	PUSHMARK (SP);
		1844
		1845	EXTEND (SP, 3);
		1846	if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
		1847	if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
		1848	PUSHs ((SV *)CvGV (ssl_cv));
		1849
		1850	RETURNOP (ssl_restore.op_first);
		1851	}
		1852
		1853	/* declare prototype */
		1854	XS(XS_Coro__State__set_stacklevel);
		1855
		1856	static OP *
		1857	pp_set_stacklevel (pTHX)
		1858	{
		1859	dSP;
		1860	struct transfer_args ta;
		1861	SV **arg = PL_stack_base + TOPMARK + 1;
		1862	int items = SP - arg; /* args without function object */
		1863
		1864	/* do a quick consistency check on the "function" object, and if it isn't */
		1865	/* for us, divert to the real entersub */
		1866	if (SvTYPE (sp) != SVt_PVGV \|\| CvXSUB (GvCV (sp)) != XS_Coro__State__set_stacklevel)
		1867	return PL_ppaddr[OP_ENTERSUB](aTHX);
		1868
		1869	/* pop args */
		1870	SP = PL_stack_base + POPMARK;
		1871
		1872	if (!(PL_op->op_flags & OPf_STACKED))
		1873	{
		1874	/* ampersand-form of call, use @_ instead of stack */
		1875	AV *av = GvAV (PL_defgv);
		1876	arg = AvARRAY (av);
		1877	items = AvFILLp (av) + 1;
		1878	}
		1879
		1880	PUTBACK;
		1881	switch (PL_op->op_private & 7)
		1882	{
		1883	case 0:
		1884	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
		1885	break;
		1886
		1887	case 1:
		1888	if (items != 2)
		1889	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
		1890
		1891	prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
		1892	break;
		1893
		1894	case 2:
		1895	prepare_schedule (aTHX_ &ta);
		1896	break;
		1897
		1898	case 3:
		1899	prepare_cede (aTHX_ &ta);
		1900	break;
		1901
		1902	case 4:
		1903	if (!prepare_cede_notself (aTHX_ &ta))
		1904	goto skip;
		1905
		1906	break;
		1907	}
		1908
		1909	TRANSFER (ta, 0);
		1910	SPAGAIN;
		1911
		1912	skip:
		1913	PUTBACK;
		1914	SSL_TAIL;
		1915	SPAGAIN;
		1916	RETURN;
		1917	}
		1918
1497	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1919	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1498		1920
1499	PROTOTYPES: DISABLE	1921	PROTOTYPES: DISABLE
1500
1501	BOOT:
1502	{
1503	#ifdef USE_ITHREADS
1504	MUTEX_INIT (&coro_mutex);
1505	#endif
1506	BOOT_PAGESIZE;
1507
1508	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1509	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1510
1511	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1512	sv_diehook = coro_get_sv (aTHX_ "Coro::State::DIEHOOK" , TRUE);
1513	sv_warnhook = coro_get_sv (aTHX_ "Coro::State::WARNHOOK", TRUE);
1514
1515	if (!PL_diehook ) hv_store (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, SvREFCNT_inc (sv_diehook ), 0);
1516	if (!PL_warnhook) hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, SvREFCNT_inc (sv_warnhook), 0);
1517
1518	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1519
1520	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1521	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1522	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1523	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1524
1525	main_mainstack = PL_mainstack;
1526	main_top_env = PL_top_env;
1527
1528	while (main_top_env->je_prev)
1529	main_top_env = main_top_env->je_prev;
1530
1531	coroapi.ver = CORO_API_VERSION;
1532	coroapi.rev = CORO_API_REVISION;
1533	coroapi.transfer = api_transfer;
1534
1535	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1536	}
1537
1538	SV *
1539	new (char *klass, ...)
1540	CODE:
1541	{
1542	struct coro *coro;
1543	HV *hv;
1544	int i;
1545
1546	Newz (0, coro, 1, struct coro);
1547	coro->args = newAV ();
1548	coro->flags = CF_NEW;
1549
1550	if (coro_first) coro_first->prev = coro;
1551	coro->next = coro_first;
1552	coro_first = coro;
1553
1554	coro->hv = hv = newHV ();
1555	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1556	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1557
1558	av_extend (coro->args, items - 1);
1559	for (i = 1; i < items; i++)
1560	av_push (coro->args, newSVsv (ST (i)));
1561	}
1562	OUTPUT:
1563	RETVAL
1564		1922
1565	# these not obviously related functions are all rolled into the same xs	1923	# these not obviously related functions are all rolled into the same xs
1566	# function to increase chances that they all will call transfer with the same	1924	# function to increase chances that they all will call transfer with the same
1567	# stack offset	1925	# stack offset
1568	void	1926	void
…		…
1572	Coro::schedule = 2	1930	Coro::schedule = 2
1573	Coro::cede = 3	1931	Coro::cede = 3
1574	Coro::cede_notself = 4	1932	Coro::cede_notself = 4
1575	CODE:	1933	CODE:
1576	{	1934	{
1577	struct transfer_args ta;	1935	assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1578		1936
1579	switch (ix)	1937	/* we patch the op, and then re-run the whole call */
		1938	/* we have to put some dummy argument on the stack for this to work */
		1939	/* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
		1940	ssl_restore.op_next = (OP *)&ssl_restore;
		1941	ssl_restore.op_type = OP_NULL;
		1942	ssl_restore.op_ppaddr = pp_restore;
		1943	ssl_restore.op_first = PL_op;
		1944
		1945	ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
		1946	ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
		1947
		1948	PL_op->op_ppaddr = pp_set_stacklevel;
		1949	PL_op->op_private = PL_op->op_private & ~7 \| ix; /* we potentially share our private flags with entersub */
		1950
		1951	PL_op = (OP *)&ssl_restore;
		1952	}
		1953
		1954	BOOT:
		1955	{
		1956	#ifdef USE_ITHREADS
		1957	MUTEX_INIT (&coro_lock);
		1958	# if CORO_PTHREAD
		1959	coro_thx = PERL_GET_CONTEXT;
		1960	# endif
		1961	#endif
		1962	BOOT_PAGESIZE;
		1963
		1964	ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
		1965
		1966	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1967	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1968
		1969	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1970	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1971	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1972
		1973	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1974	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1975	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1976
		1977	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1978
		1979	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1980	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1981	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1982	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
		1983
		1984	main_mainstack = PL_mainstack;
		1985	main_top_env = PL_top_env;
		1986
		1987	while (main_top_env->je_prev)
		1988	main_top_env = main_top_env->je_prev;
		1989
		1990	coroapi.ver = CORO_API_VERSION;
		1991	coroapi.rev = CORO_API_REVISION;
		1992	coroapi.transfer = api_transfer;
		1993
1580	{	1994	{
1581	case 0:	1995	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1582	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1583	ta.next = 0;
1584	break;
1585		1996
1586	case 1:	1997	if (!svp) croak ("Time::HiRes is required");
1587	if (items != 2)	1998	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		1999
1590	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	2000	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	}	2001	}
1607		2002
1608	BARRIER;	2003	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1609	PUTBACK;
1610	TRANSFER (ta);
1611	SPAGAIN; /* might be the sp of a different coroutine now */
1612	/* be extra careful not to ever do anything after TRANSFER */
1613	}	2004	}
		2005
		2006	SV *
		2007	new (char *klass, ...)
		2008	CODE:
		2009	{
		2010	struct coro *coro;
		2011	MAGIC *mg;
		2012	HV *hv;
		2013	int i;
		2014
		2015	Newz (0, coro, 1, struct coro);
		2016	coro->args = newAV ();
		2017	coro->flags = CF_NEW;
		2018
		2019	if (coro_first) coro_first->prev = coro;
		2020	coro->next = coro_first;
		2021	coro_first = coro;
		2022
		2023	coro->hv = hv = newHV ();
		2024	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		2025	mg->mg_flags \|= MGf_DUP;
		2026	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		2027
		2028	av_extend (coro->args, items - 1);
		2029	for (i = 1; i < items; i++)
		2030	av_push (coro->args, newSVsv (ST (i)));
		2031	}
		2032	OUTPUT:
		2033	RETVAL
1614		2034
1615	bool	2035	bool
1616	_destroy (SV *coro_sv)	2036	_destroy (SV *coro_sv)
1617	CODE:	2037	CODE:
1618	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	2038	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1619	OUTPUT:	2039	OUTPUT:
1620	RETVAL	2040	RETVAL
1621		2041
1622	void	2042	void
1623	_exit (code)	2043	_exit (int code)
1624	int code
1625	PROTOTYPE: $	2044	PROTOTYPE: $
1626	CODE:	2045	CODE:
1627	_exit (code);	2046	_exit (code);
1628		2047
1629	int	2048	int
1630	cctx_stacksize (int new_stacksize = 0)	2049	cctx_stacksize (int new_stacksize = 0)
1631	CODE:	2050	CODE:
1632	RETVAL = coro_stacksize;	2051	RETVAL = cctx_stacksize;
1633	if (new_stacksize)	2052	if (new_stacksize)
		2053	{
1634	coro_stacksize = new_stacksize;	2054	cctx_stacksize = new_stacksize;
		2055	++cctx_gen;
		2056	}
		2057	OUTPUT:
		2058	RETVAL
		2059
		2060	int
		2061	cctx_max_idle (int max_idle = 0)
		2062	CODE:
		2063	RETVAL = cctx_max_idle;
		2064	if (max_idle > 1)
		2065	cctx_max_idle = max_idle;
1635	OUTPUT:	2066	OUTPUT:
1636	RETVAL	2067	RETVAL
1637		2068
1638	int	2069	int
1639	cctx_count ()	2070	cctx_count ()
…		…
1663	call (Coro::State coro, SV *coderef)	2094	call (Coro::State coro, SV *coderef)
1664	ALIAS:	2095	ALIAS:
1665	eval = 1	2096	eval = 1
1666	CODE:	2097	CODE:
1667	{	2098	{
1668	if (coro->mainstack)	2099	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1669	{	2100	{
1670	struct coro temp;	2101	struct coro temp;
1671		2102
1672	if (!(coro->flags & CF_RUNNING))	2103	if (!(coro->flags & CF_RUNNING))
1673	{	2104	{
		2105	PUTBACK;
1674	save_perl (aTHX_ &temp);	2106	save_perl (aTHX_ &temp);
1675	load_perl (aTHX_ coro);	2107	load_perl (aTHX_ coro);
1676	}	2108	}
1677		2109
1678	{	2110	{
…		…
1697		2129
1698	if (!(coro->flags & CF_RUNNING))	2130	if (!(coro->flags & CF_RUNNING))
1699	{	2131	{
1700	save_perl (aTHX_ coro);	2132	save_perl (aTHX_ coro);
1701	load_perl (aTHX_ &temp);	2133	load_perl (aTHX_ &temp);
		2134	SPAGAIN;
1702	}	2135	}
1703	}	2136	}
1704	}	2137	}
1705		2138
1706	SV *	2139	SV *
…		…
1715	RETVAL = boolSV (coro->flags & ix);	2148	RETVAL = boolSV (coro->flags & ix);
1716	OUTPUT:	2149	OUTPUT:
1717	RETVAL	2150	RETVAL
1718		2151
1719	void	2152	void
		2153	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2154	PROTOTYPE: $;$
		2155	CODE:
		2156	SvREFCNT_dec (self->throw);
		2157	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2158
		2159	void
1720	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2160	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1721		2161
1722	SV *	2162	SV *
1723	has_stack (Coro::State coro)	2163	has_cctx (Coro::State coro)
1724	PROTOTYPE: $	2164	PROTOTYPE: $
1725	CODE:	2165	CODE:
1726	RETVAL = boolSV (!!coro->cctx);	2166	RETVAL = boolSV (!!coro->cctx);
1727	OUTPUT:	2167	OUTPUT:
1728	RETVAL	2168	RETVAL
…		…
1733	CODE:	2173	CODE:
1734	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2174	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1735	OUTPUT:	2175	OUTPUT:
1736	RETVAL	2176	RETVAL
1737		2177
1738	IV	2178	UV
1739	rss (Coro::State coro)	2179	rss (Coro::State coro)
1740	PROTOTYPE: $	2180	PROTOTYPE: $
1741	ALIAS:	2181	ALIAS:
1742	usecount = 1	2182	usecount = 1
1743	CODE:	2183	CODE:
…		…
1747	case 1: RETVAL = coro->usecount; break;	2187	case 1: RETVAL = coro->usecount; break;
1748	}	2188	}
1749	OUTPUT:	2189	OUTPUT:
1750	RETVAL	2190	RETVAL
1751		2191
		2192	void
		2193	force_cctx ()
		2194	CODE:
		2195	struct coro *coro = SvSTATE (coro_current);
		2196	coro->cctx->idle_sp = 0;
		2197
		2198	void
		2199	swap_defsv (Coro::State self)
		2200	PROTOTYPE: $
		2201	ALIAS:
		2202	swap_defav = 1
		2203	CODE:
		2204	if (!self->slot)
		2205	croak ("cannot swap state with coroutine that has no saved state");
		2206	else
		2207	{
		2208	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2209	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2210
		2211	SV tmp = src; src = dst; *dst = tmp;
		2212	}
1752		2213
1753	MODULE = Coro::State PACKAGE = Coro	2214	MODULE = Coro::State PACKAGE = Coro
1754		2215
1755	BOOT:	2216	BOOT:
1756	{	2217	{
1757	int i;	2218	int i;
1758		2219
		2220	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1759	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2221	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1760	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2222	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1761	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1762		2223
1763	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2224	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1764	SvREADONLY_on (coro_current);	2225	SvREADONLY_on (coro_current);
1765		2226
1766	coro_stash = gv_stashpv ("Coro", TRUE);	2227	coro_stash = gv_stashpv ("Coro", TRUE);
…		…
1774		2235
1775	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	2236	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1776	coro_ready[i] = newAV ();	2237	coro_ready[i] = newAV ();
1777		2238
1778	{	2239	{
1779	SV *sv = perl_get_sv ("Coro::API", TRUE);	2240	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1780	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1781		2241
1782	coroapi.schedule = api_schedule;	2242	coroapi.schedule = api_schedule;
1783	coroapi.cede = api_cede;	2243	coroapi.cede = api_cede;
1784	coroapi.cede_notself = api_cede_notself;	2244	coroapi.cede_notself = api_cede_notself;
1785	coroapi.ready = api_ready;	2245	coroapi.ready = api_ready;
…		…
1796	void	2256	void
1797	_set_current (SV *current)	2257	_set_current (SV *current)
1798	PROTOTYPE: $	2258	PROTOTYPE: $
1799	CODE:	2259	CODE:
1800	SvREFCNT_dec (SvRV (coro_current));	2260	SvREFCNT_dec (SvRV (coro_current));
1801	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2261	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2262
		2263	void
		2264	_set_readyhook (SV *hook)
		2265	PROTOTYPE: $
		2266	CODE:
		2267	LOCK;
		2268	SvREFCNT_dec (coro_readyhook);
		2269	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2270	UNLOCK;
1802		2271
1803	int	2272	int
1804	prio (Coro::State coro, int newprio = 0)	2273	prio (Coro::State coro, int newprio = 0)
1805	ALIAS:	2274	ALIAS:
1806	nice = 1	2275	nice = 1
…		…
1836	CODE:	2305	CODE:
1837	RETVAL = coro_nready;	2306	RETVAL = coro_nready;
1838	OUTPUT:	2307	OUTPUT:
1839	RETVAL	2308	RETVAL
1840		2309
1841	void
1842	throw (Coro::State self, SV *throw = &PL_sv_undef)
1843	PROTOTYPE: $;$
1844	CODE:
1845	SvREFCNT_dec (self->throw);
1846	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1847
1848	# for async_pool speedup	2310	# for async_pool speedup
1849	void	2311	void
1850	_pool_1 (SV *cb)	2312	_pool_1 (SV *cb)
1851	CODE:	2313	CODE:
1852	{	2314	{
…		…
1856	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2318	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1857	AV *invoke_av;	2319	AV *invoke_av;
1858	int i, len;	2320	int i, len;
1859		2321
1860	if (!invoke)	2322	if (!invoke)
		2323	{
		2324	SV *old = PL_diehook;
		2325	PL_diehook = 0;
		2326	SvREFCNT_dec (old);
1861	croak ("\3async_pool terminate\2\n");	2327	croak ("\3async_pool terminate\2\n");
		2328	}
1862		2329
1863	SvREFCNT_dec (coro->saved_deffh);	2330	SvREFCNT_dec (coro->saved_deffh);
1864	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2331	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1865		2332
1866	hv_store (hv, "desc", sizeof ("desc") - 1,	2333	hv_store (hv, "desc", sizeof ("desc") - 1,
1867	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2334	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1868		2335
1869	invoke_av = (AV *)SvRV (invoke);	2336	invoke_av = (AV *)SvRV (invoke);
…		…
1873		2340
1874	if (len > 0)	2341	if (len > 0)
1875	{	2342	{
1876	av_fill (defav, len - 1);	2343	av_fill (defav, len - 1);
1877	for (i = 0; i < len; ++i)	2344	for (i = 0; i < len; ++i)
1878	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2345	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1879	}	2346	}
1880		2347
1881	SvREFCNT_dec (invoke);	2348	SvREFCNT_dec (invoke);
1882	}	2349	}
1883		2350
…		…
1890	sv_setsv (cb, &PL_sv_undef);	2357	sv_setsv (cb, &PL_sv_undef);
1891		2358
1892	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2359	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1893	coro->saved_deffh = 0;	2360	coro->saved_deffh = 0;
1894		2361
1895	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2362	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1896	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2363	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2364	{
		2365	SV *old = PL_diehook;
		2366	PL_diehook = 0;
		2367	SvREFCNT_dec (old);
1897	croak ("\3async_pool terminate\2\n");	2368	croak ("\3async_pool terminate\2\n");
		2369	}
1898		2370
1899	av_clear (GvAV (PL_defgv));	2371	av_clear (GvAV (PL_defgv));
1900	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2372	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1901	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2373	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1902		2374
…		…
1906	api_trace (coro_current, 0);	2378	api_trace (coro_current, 0);
1907		2379
1908	av_push (av_async_pool, newSVsv (coro_current));	2380	av_push (av_async_pool, newSVsv (coro_current));
1909	}	2381	}
1910		2382
		2383	#if 0
		2384
		2385	void
		2386	_generator_call (...)
		2387	PROTOTYPE: @
		2388	PPCODE:
		2389	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2390	xxxx
		2391	abort ();
		2392
		2393	SV *
		2394	gensub (SV *sub, ...)
		2395	PROTOTYPE: &;@
		2396	CODE:
		2397	{
		2398	struct coro *coro;
		2399	MAGIC *mg;
		2400	CV *xcv;
		2401	CV ncv = (CV )newSV_type (SVt_PVCV);
		2402	int i;
		2403
		2404	CvGV (ncv) = CvGV (cv);
		2405	CvFILE (ncv) = CvFILE (cv);
		2406
		2407	Newz (0, coro, 1, struct coro);
		2408	coro->args = newAV ();
		2409	coro->flags = CF_NEW;
		2410
		2411	av_extend (coro->args, items - 1);
		2412	for (i = 1; i < items; i++)
		2413	av_push (coro->args, newSVsv (ST (i)));
		2414
		2415	CvISXSUB_on (ncv);
		2416	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2417
		2418	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2419
		2420	CvXSUB (ncv) = CvXSUB (xcv);
		2421	CvANON_on (ncv);
		2422
		2423	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2424	RETVAL = newRV_noinc ((SV *)ncv);
		2425	}
		2426	OUTPUT:
		2427	RETVAL
		2428
		2429	#endif
		2430
1911		2431
1912	MODULE = Coro::State PACKAGE = Coro::AIO	2432	MODULE = Coro::State PACKAGE = Coro::AIO
1913		2433
1914	SV *	2434	void
1915	_get_state ()	2435	_get_state (SV *self)
1916	CODE:	2436	PPCODE:
1917	{	2437	{
1918	struct io_state *data;	2438	AV *defav = GvAV (PL_defgv);
1919		2439	AV *av = newAV ();
		2440	int i;
1920	RETVAL = newSV (sizeof (struct io_state));	2441	SV *data_sv = newSV (sizeof (struct io_state));
1921	data = (struct io_state *)SvPVX (RETVAL);	2442	struct io_state data = (struct io_state )SvPVX (data_sv);
1922	SvCUR_set (RETVAL, sizeof (struct io_state));	2443	SvCUR_set (data_sv, sizeof (struct io_state));
1923	SvPOK_only (RETVAL);	2444	SvPOK_only (data_sv);
1924		2445
1925	data->errorno = errno;	2446	data->errorno = errno;
1926	data->laststype = PL_laststype;	2447	data->laststype = PL_laststype;
1927	data->laststatval = PL_laststatval;	2448	data->laststatval = PL_laststatval;
1928	data->statcache = PL_statcache;	2449	data->statcache = PL_statcache;
		2450
		2451	av_extend (av, AvFILLp (defav) + 1 + 1);
		2452
		2453	for (i = 0; i <= AvFILLp (defav); ++i)
		2454	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2455
		2456	av_push (av, data_sv);
		2457
		2458	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2459
		2460	api_ready (self);
1929	}	2461	}
1930	OUTPUT:
1931	RETVAL
1932		2462
1933	void	2463	void
1934	_set_state (char *data_)	2464	_set_state (SV *state)
1935	PROTOTYPE: $	2465	PROTOTYPE: $
1936	CODE:	2466	PPCODE:
1937	{	2467	{
1938	struct io_state data = (void )data_;	2468	AV av = (AV )SvRV (state);
		2469	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2470	int i;
1939		2471
1940	errno = data->errorno;	2472	errno = data->errorno;
1941	PL_laststype = data->laststype;	2473	PL_laststype = data->laststype;
1942	PL_laststatval = data->laststatval;	2474	PL_laststatval = data->laststatval;
1943	PL_statcache = data->statcache;	2475	PL_statcache = data->statcache;
1944	}
1945		2476
		2477	EXTEND (SP, AvFILLp (av));
		2478	for (i = 0; i < AvFILLp (av); ++i)
		2479	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2480	}
		2481
		2482
		2483	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2484
		2485	BOOT:
		2486	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2487
		2488	SV *
		2489	_schedule (...)
		2490	PROTOTYPE: @
		2491	CODE:
		2492	{
		2493	static int incede;
		2494
		2495	api_cede_notself ();
		2496
		2497	++incede;
		2498	while (coro_nready >= incede && api_cede ())
		2499	;
		2500
		2501	sv_setsv (sv_activity, &PL_sv_undef);
		2502	if (coro_nready >= incede)
		2503	{
		2504	PUSHMARK (SP);
		2505	PUTBACK;
		2506	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2507	SPAGAIN;
		2508	}
		2509
		2510	--incede;
		2511	}
		2512
		2513
		2514	MODULE = Coro::State PACKAGE = PerlIO::cede
		2515
		2516	BOOT:
		2517	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2518

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.213 by root, Thu Oct 11 00:40:48 2007 UTC vs. Revision 1.265 by root, Fri Nov 14 02:42:26 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.213 by root, Thu Oct 11 00:40:48 2007 UTC vs.
Revision 1.265 by root, Fri Nov 14 02:42:26 2008 UTC