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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.195 by root, Sat Oct 6 00:35:41 2007 UTC vs.
Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
8		10
9	#include "patchlevel.h"	11	#include "patchlevel.h"
10		12
11	#include <stdio.h>	13	#include <stdio.h>
12	#include <errno.h>	14	#include <errno.h>
13	#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
14		25
15	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
16	# include <unistd.h>	27	# include <unistd.h>
17	# include <sys/mman.h>	28	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
35	# define BOOT_PAGESIZE (void)0	46	# define BOOT_PAGESIZE (void)0
36	#endif	47	#endif
37		48
38	#if CORO_USE_VALGRIND	49	#if CORO_USE_VALGRIND
39	# include <valgrind/valgrind.h>	50	# include <valgrind/valgrind.h>
40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
41	#else
42	# define REGISTER_STACK(cctx,start,end)
43	#endif	51	#endif
44		52
45	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
46	#define MAX_IDLE_CCTX 8	54	static int cctx_max_idle = 4;
47		55
48	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
49	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
50	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
51	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
…		…
70	# ifndef IS_PADCONST	78	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	79	# define IS_PADCONST(v) 0
72	# endif	80	# endif
73	#endif	81	#endif
74		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
75	/* 5.8.7 */	101	/* 5.8.7 */
76	#ifndef SvRV_set	102	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	103	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif
79
80	/* 5.8.8 */
81	#ifndef GV_NOTQUAL
82	# define GV_NOTQUAL 0
83	#endif
84	#ifndef newSV
85	# define newSV(l) NEWSV(0,l)
86	#endif	104	#endif
87		105
88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	106	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
89	# undef CORO_STACKGUARD	107	# undef CORO_STACKGUARD
90	#endif	108	#endif
…		…
107		125
108	#if __GNUC__ >= 3	126	#if __GNUC__ >= 3
109	# define attribute(x) __attribute__(x)	127	# define attribute(x) __attribute__(x)
110	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	128	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
111	# define expect(expr,value) __builtin_expect ((expr),(value))	129	# define expect(expr,value) __builtin_expect ((expr),(value))
		130	# define INLINE static inline
112	#else	131	#else
113	# define attribute(x)	132	# define attribute(x)
114	# define BARRIER	133	# define BARRIER
115	# define expect(expr,value) (expr)	134	# define expect(expr,value) (expr)
		135	# define INLINE static
116	#endif	136	#endif
117		137
118	#define expect_false(expr) expect ((expr) != 0, 0)	138	#define expect_false(expr) expect ((expr) != 0, 0)
119	#define expect_true(expr) expect ((expr) != 0, 1)	139	#define expect_true(expr) expect ((expr) != 0, 1)
120		140
121	#define NOINLINE attribute ((noinline))	141	#define NOINLINE attribute ((noinline))
122		142
123	#include "CoroAPI.h"	143	#include "CoroAPI.h"
124		144
125	#ifdef USE_ITHREADS	145	#ifdef USE_ITHREADS
		146
126	static perl_mutex coro_mutex;	147	static perl_mutex coro_lock;
127	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	148	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
128	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	149	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		150	# if CORO_PTHREAD
		151	static void *coro_thx;
		152	# endif
		153
129	#else	154	#else
		155
130	# define LOCK (void)0	156	# define LOCK (void)0
131	# define UNLOCK (void)0	157	# define UNLOCK (void)0
		158
132	#endif	159	#endif
		160
		161	# undef LOCK
		162	# define LOCK (void)0
		163	# undef UNLOCK
		164	# define UNLOCK (void)0
133		165
134	/* helper storage struct for Coro::AIO */	166	/* helper storage struct for Coro::AIO */
135	struct io_state	167	struct io_state
136	{	168	{
		169	AV *res;
137	int errorno;	170	int errorno;
138	I32 laststype;	171	I32 laststype; /* U16 in 5.10.0 */
139	int laststatval;	172	int laststatval;
140	Stat_t statcache;	173	Stat_t statcache;
141	};	174	};
142		175
		176	static double (nvtime)(); / so why doesn't it take void? */
		177
		178	static U32 cctx_gen;
143	static size_t coro_stacksize = CORO_STACKSIZE;	179	static size_t cctx_stacksize = CORO_STACKSIZE;
144	static struct CoroAPI coroapi;	180	static struct CoroAPI coroapi;
145	static AV main_mainstack; / used to differentiate between $main and others */	181	static AV main_mainstack; / used to differentiate between $main and others */
146	static JMPENV *main_top_env;	182	static JMPENV *main_top_env;
147	static HV coro_state_stash, coro_stash;	183	static HV coro_state_stash, coro_stash;
148	static SV coro_mortal; / will be freed after next transfer */	184	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		185	static volatile struct coro *transfer_next;
		186
		187	struct transfer_args
		188	{
		189	struct coro prev, next;
		190	};
149		191
150	static GV irsgv; / $/ */	192	static GV irsgv; / $/ */
151	static GV stdoutgv; / STDOUT /	193	static GV stdoutgv; / STDOUT /
		194	static SV *rv_diehook;
		195	static SV *rv_warnhook;
		196	static HV hv_sig; / %SIG */
152		197
153	/* async_pool helper stuff */	198	/* async_pool helper stuff */
154	static SV *sv_pool_rss;	199	static SV *sv_pool_rss;
155	static SV *sv_pool_size;	200	static SV *sv_pool_size;
156	static AV *av_async_pool;	201	static AV *av_async_pool;
		202
		203	/* Coro::AnyEvent */
		204	static SV *sv_activity;
157		205
158	static struct coro_cctx *cctx_first;	206	static struct coro_cctx *cctx_first;
159	static int cctx_count, cctx_idle;	207	static int cctx_count, cctx_idle;
160		208
161	enum {	209	enum {
…		…
179	void idle_sp; / sp of top-level transfer/schedule/cede call */	227	void idle_sp; / sp of top-level transfer/schedule/cede call */
180	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	228	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
181	JMPENV *top_env;	229	JMPENV *top_env;
182	coro_context cctx;	230	coro_context cctx;
183		231
		232	U32 gen;
184	#if CORO_USE_VALGRIND	233	#if CORO_USE_VALGRIND
185	int valgrind_id;	234	int valgrind_id;
186	#endif	235	#endif
187	unsigned char flags;	236	unsigned char flags;
188	} coro_cctx;	237	} coro_cctx;
…		…
192	CF_READY = 0x0002, /* coroutine is ready */	241	CF_READY = 0x0002, /* coroutine is ready */
193	CF_NEW = 0x0004, /* has never been switched to */	242	CF_NEW = 0x0004, /* has never been switched to */
194	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	243	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
195	};	244	};
196		245
		246	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		247	typedef struct {
		248	SV *defsv;
		249	AV *defav;
		250	SV *errsv;
		251	SV *irsgv;
		252	#define VAR(name,type) type name;
		253	# include "state.h"
		254	#undef VAR
		255	} perl_slots;
		256
		257	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		258
197	/* this is a structure representing a perl-level coroutine */	259	/* this is a structure representing a perl-level coroutine */
198	struct coro {	260	struct coro {
199	/* the c coroutine allocated to this perl coroutine, if any */	261	/* the c coroutine allocated to this perl coroutine, if any */
200	coro_cctx *cctx;	262	coro_cctx *cctx;
201		263
		264	/* process data */
		265	AV *mainstack;
		266	perl_slots slot; / basically the saved sp */
		267
202	/* data associated with this coroutine (initial args) */	268	AV args; / data associated with this coroutine (initial args) */
203	AV *args;	269	int refcnt; /* coroutines are refcounted, yes */
204	int refcnt;
205	int flags; /* CF_ flags */	270	int flags; /* CF_ flags */
206		271	HV hv; / the perl hash associated with this coro, if any */
207	/* optionally saved, might be zero */
208	AV defav; / @_ */
209	SV defsv; / $_ */
210	SV errsv; / $@ */
211	SV deffh; / default filehandle */
212	SV irssv; / $/ */
213	SV irssv_sv; / real $/ cache */
214
215	#define VAR(name,type) type name;
216	# include "state.h"
217	#undef VAR
218		272
219	/* statistics */	273	/* statistics */
220	int usecount; /* number of transfers to this coro */	274	int usecount; /* number of transfers to this coro */
221		275
222	/* coro process data */	276	/* coro process data */
223	int prio;	277	int prio;
224	//SV *throw;	278	SV throw; / exception to be thrown */
225		279
226	/* async_pool */	280	/* async_pool */
227	SV *saved_deffh;	281	SV *saved_deffh;
228		282
229	/* linked list */	283	/* linked list */
230	struct coro next, prev;	284	struct coro next, prev;
231	HV hv; / the perl hash associated with this coro, if any */
232	};	285	};
233		286
234	typedef struct coro *Coro__State;	287	typedef struct coro *Coro__State;
235	typedef struct coro *Coro__State_or_hashref;	288	typedef struct coro *Coro__State_or_hashref;
236		289
…		…
243	#define PRIO_IDLE -3	296	#define PRIO_IDLE -3
244	#define PRIO_MIN -4	297	#define PRIO_MIN -4
245		298
246	/* for Coro.pm */	299	/* for Coro.pm */
247	static SV *coro_current;	300	static SV *coro_current;
		301	static SV *coro_readyhook;
248	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	302	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
249	static int coro_nready;	303	static int coro_nready;
250	static struct coro *coro_first;	304	static struct coro *coro_first;
251		305
252	/ lowlevel stuff ********************************************************/	306	/ lowlevel stuff ********************************************************/
253		307
		308	static SV *
		309	coro_get_sv (pTHX_ const char *name, int create)
		310	{
		311	#if PERL_VERSION_ATLEAST (5,10,0)
		312	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		313	get_sv (name, create);
		314	#endif
		315	return get_sv (name, create);
		316	}
		317
		318	static AV *
		319	coro_get_av (pTHX_ const char *name, int create)
		320	{
		321	#if PERL_VERSION_ATLEAST (5,10,0)
		322	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		323	get_av (name, create);
		324	#endif
		325	return get_av (name, create);
		326	}
		327
		328	static HV *
		329	coro_get_hv (pTHX_ const char *name, int create)
		330	{
		331	#if PERL_VERSION_ATLEAST (5,10,0)
		332	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		333	get_hv (name, create);
		334	#endif
		335	return get_hv (name, create);
		336	}
		337
254	static AV *	338	static AV *
255	coro_clone_padlist (pTHX_ CV *cv)	339	coro_clone_padlist (pTHX_ CV *cv)
256	{	340	{
257	AV *padlist = CvPADLIST (cv);	341	AV *padlist = CvPADLIST (cv);
258	AV newpadlist, newpad;	342	AV newpadlist, newpad;
259		343
260	newpadlist = newAV ();	344	newpadlist = newAV ();
261	AvREAL_off (newpadlist);	345	AvREAL_off (newpadlist);
262	#if PERL_VERSION_ATLEAST (5,9,0)	346	#if PERL_VERSION_ATLEAST (5,10,0)
263	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	347	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
264	#else	348	#else
265	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	349	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
266	#endif	350	#endif
267	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	351	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
268	--AvFILLp (padlist);	352	--AvFILLp (padlist);
269		353
270	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	354	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
271	av_store (newpadlist, 1, (SV *)newpad);	355	av_store (newpadlist, 1, (SV *)newpad);
272		356
273	return newpadlist;	357	return newpadlist;
274	}	358	}
275		359
…		…
305		389
306	/* casting is fun. */	390	/* casting is fun. */
307	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	391	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
308	free_padlist (aTHX_ padlist);	392	free_padlist (aTHX_ padlist);
309		393
310	SvREFCNT_dec (av);	394	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
311		395
312	return 0;	396	return 0;
313	}	397	}
314		398
315	#define PERL_MAGIC_coro PERL_MAGIC_ext	399	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		400	#define CORO_MAGIC_type_state PERL_MAGIC_ext
316		401
317	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	402	static MGVTBL coro_cv_vtbl = {
		403	0, 0, 0, 0,
		404	coro_cv_free
		405	};
318		406
319	#define CORO_MAGIC(cv) \	407	#define CORO_MAGIC(sv, type) \
320	SvMAGIC (cv) \	408	SvMAGIC (sv) \
321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	409	? SvMAGIC (sv)->mg_type == type \
322	? SvMAGIC (cv) \	410	? SvMAGIC (sv) \
323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	411	: mg_find (sv, type) \
324	: 0	412	: 0
325		413
326	static struct coro *	414	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		415	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
		416
		417	INLINE struct coro *
327	SvSTATE_ (pTHX_ SV *coro)	418	SvSTATE_ (pTHX_ SV *coro)
328	{	419	{
329	HV *stash;	420	HV *stash;
330	MAGIC *mg;	421	MAGIC *mg;
331		422
…		…
341	/* very slow, but rare, check */	432	/* very slow, but rare, check */
342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	433	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343	croak ("Coro::State object required");	434	croak ("Coro::State object required");
344	}	435	}
345		436
346	mg = CORO_MAGIC (coro);	437	mg = CORO_MAGIC_state (coro);
347	return (struct coro *)mg->mg_ptr;	438	return (struct coro *)mg->mg_ptr;
348	}	439	}
349		440
350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	441	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351		442
352	/* the next two functions merely cache the padlists */	443	/* the next two functions merely cache the padlists */
353	static void	444	static void
354	get_padlist (pTHX_ CV *cv)	445	get_padlist (pTHX_ CV *cv)
355	{	446	{
356	MAGIC *mg = CORO_MAGIC (cv);	447	MAGIC *mg = CORO_MAGIC_cv (cv);
357	AV *av;	448	AV *av;
358		449
359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	450	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	451	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
361	else	452	else
362	{	453	{
363	#if CORO_PREFER_PERL_FUNCTIONS	454	#if CORO_PREFER_PERL_FUNCTIONS
364	/* this is probably cleaner, but also slower? */	455	/* this is probably cleaner? but also slower! */
		456	/* in practise, it seems to be less stable */
365	CV *cp = Perl_cv_clone (cv);	457	CV *cp = Perl_cv_clone (cv);
366	CvPADLIST (cv) = CvPADLIST (cp);	458	CvPADLIST (cv) = CvPADLIST (cp);
367	CvPADLIST (cp) = 0;	459	CvPADLIST (cp) = 0;
368	SvREFCNT_dec (cp);	460	SvREFCNT_dec (cp);
369	#else	461	#else
…		…
373	}	465	}
374		466
375	static void	467	static void
376	put_padlist (pTHX_ CV *cv)	468	put_padlist (pTHX_ CV *cv)
377	{	469	{
378	MAGIC *mg = CORO_MAGIC (cv);	470	MAGIC *mg = CORO_MAGIC_cv (cv);
379	AV *av;	471	AV *av;
380		472
381	if (expect_false (!mg))	473	if (expect_false (!mg))
382	{	474	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
383	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
384	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
385	mg->mg_virtual = &vtbl_coro;
386	mg->mg_obj = (SV *)newAV ();
387	}
388		475
389	av = (AV *)mg->mg_obj;	476	av = (AV *)mg->mg_obj;
390		477
391	if (expect_false (AvFILLp (av) >= AvMAX (av)))	478	if (expect_false (AvFILLp (av) >= AvMAX (av)))
392	av_extend (av, AvMAX (av) + 1);	479	av_extend (av, AvMAX (av) + 1);
…		…
397	/ load & save, init *****************************************************/	484	/ load & save, init *****************************************************/
398		485
399	static void	486	static void
400	load_perl (pTHX_ Coro__State c)	487	load_perl (pTHX_ Coro__State c)
401	{	488	{
		489	perl_slots *slot = c->slot;
		490	c->slot = 0;
		491
		492	PL_mainstack = c->mainstack;
		493
		494	GvSV (PL_defgv) = slot->defsv;
		495	GvAV (PL_defgv) = slot->defav;
		496	GvSV (PL_errgv) = slot->errsv;
		497	GvSV (irsgv) = slot->irsgv;
		498
402	#define VAR(name,type) PL_ ## name = c->name;	499	#define VAR(name,type) PL_ ## name = slot->name;
403	# include "state.h"	500	# include "state.h"
404	#undef VAR	501	#undef VAR
405
406	GvSV (PL_defgv) = c->defsv;
407	GvAV (PL_defgv) = c->defav;
408	GvSV (PL_errgv) = c->errsv;
409	GvSV (irsgv) = c->irssv_sv;
410		502
411	{	503	{
412	dSP;	504	dSP;
		505
413	CV *cv;	506	CV *cv;
414		507
415	/* now do the ugly restore mess */	508	/* now do the ugly restore mess */
416	while (expect_true (cv = (CV *)POPs))	509	while (expect_true (cv = (CV *)POPs))
417	{	510	{
…		…
452		545
453	if (expect_true (CvDEPTH (cv)))	546	if (expect_true (CvDEPTH (cv)))
454	{	547	{
455	EXTEND (SP, 3);	548	EXTEND (SP, 3);
456	PUSHs ((SV *)CvPADLIST (cv));	549	PUSHs ((SV *)CvPADLIST (cv));
457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	550	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
458	PUSHs ((SV *)cv);	551	PUSHs ((SV *)cv);
459		552
460	CvDEPTH (cv) = 0;	553	CvDEPTH (cv) = 0;
461	get_padlist (aTHX_ cv);	554	get_padlist (aTHX_ cv);
462	}	555	}
…		…
472	}	565	}
473		566
474	PUTBACK;	567	PUTBACK;
475	}	568	}
476		569
		570	/* allocate some space on the context stack for our purposes */
		571	/* we manually unroll here, as usually 2 slots is enough */
		572	if (SLOT_COUNT >= 1) CXINC;
		573	if (SLOT_COUNT >= 2) CXINC;
		574	if (SLOT_COUNT >= 3) CXINC;
		575	{
		576	int i;
		577	for (i = 3; i < SLOT_COUNT; ++i)
		578	CXINC;
		579	}
		580	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		581
		582	c->mainstack = PL_mainstack;
		583
		584	{
		585	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		586
477	c->defav = GvAV (PL_defgv);	587	slot->defav = GvAV (PL_defgv);
478	c->defsv = DEFSV;	588	slot->defsv = DEFSV;
479	c->errsv = ERRSV;	589	slot->errsv = ERRSV;
480	c->irssv_sv = GvSV (irsgv);	590	slot->irsgv = GvSV (irsgv);
481		591
482	#define VAR(name,type)c->name = PL_ ## name;	592	#define VAR(name,type) slot->name = PL_ ## name;
483	# include "state.h"	593	# include "state.h"
484	#undef VAR	594	#undef VAR
		595	}
485	}	596	}
486		597
487	/*	598	/*
488	* allocate various perl stacks. This is an exact copy	599	* allocate various perl stacks. This is an exact copy
489	* of perl.c:init_stacks, except that it uses less memory	600	* of perl.c:init_stacks, except that it uses less memory
…		…
494	# define coro_init_stacks init_stacks	605	# define coro_init_stacks init_stacks
495	#else	606	#else
496	static void	607	static void
497	coro_init_stacks (pTHX)	608	coro_init_stacks (pTHX)
498	{	609	{
499	PL_curstackinfo = new_stackinfo(64, 6);	610	PL_curstackinfo = new_stackinfo(32, 8);
500	PL_curstackinfo->si_type = PERLSI_MAIN;	611	PL_curstackinfo->si_type = PERLSI_MAIN;
501	PL_curstack = PL_curstackinfo->si_stack;	612	PL_curstack = PL_curstackinfo->si_stack;
502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	613	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
503		614
504	PL_stack_base = AvARRAY(PL_curstack);	615	PL_stack_base = AvARRAY(PL_curstack);
505	PL_stack_sp = PL_stack_base;	616	PL_stack_sp = PL_stack_base;
506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	617	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
507		618
508	New(50,PL_tmps_stack,64,SV*);	619	New(50,PL_tmps_stack,32,SV*);
509	PL_tmps_floor = -1;	620	PL_tmps_floor = -1;
510	PL_tmps_ix = -1;	621	PL_tmps_ix = -1;
511	PL_tmps_max = 64;	622	PL_tmps_max = 32;
512		623
513	New(54,PL_markstack,16,I32);	624	New(54,PL_markstack,16,I32);
514	PL_markstack_ptr = PL_markstack;	625	PL_markstack_ptr = PL_markstack;
515	PL_markstack_max = PL_markstack + 16;	626	PL_markstack_max = PL_markstack + 16;
516		627
517	#ifdef SET_MARK_OFFSET	628	#ifdef SET_MARK_OFFSET
518	SET_MARK_OFFSET;	629	SET_MARK_OFFSET;
519	#endif	630	#endif
520		631
521	New(54,PL_scopestack,16,I32);	632	New(54,PL_scopestack,8,I32);
522	PL_scopestack_ix = 0;	633	PL_scopestack_ix = 0;
523	PL_scopestack_max = 16;	634	PL_scopestack_max = 8;
524		635
525	New(54,PL_savestack,64,ANY);	636	New(54,PL_savestack,24,ANY);
526	PL_savestack_ix = 0;	637	PL_savestack_ix = 0;
527	PL_savestack_max = 64;	638	PL_savestack_max = 24;
528		639
529	#if !PERL_VERSION_ATLEAST (5,9,0)	640	#if !PERL_VERSION_ATLEAST (5,10,0)
530	New(54,PL_retstack,4,OP*);	641	New(54,PL_retstack,4,OP*);
531	PL_retstack_ix = 0;	642	PL_retstack_ix = 0;
532	PL_retstack_max = 4;	643	PL_retstack_max = 4;
533	#endif	644	#endif
534	}	645	}
…		…
536		647
537	/*	648	/*
538	* destroy the stacks, the callchain etc...	649	* destroy the stacks, the callchain etc...
539	*/	650	*/
540	static void	651	static void
541	coro_destroy_stacks (pTHX)	652	coro_destruct_stacks (pTHX)
542	{	653	{
543	while (PL_curstackinfo->si_next)	654	while (PL_curstackinfo->si_next)
544	PL_curstackinfo = PL_curstackinfo->si_next;	655	PL_curstackinfo = PL_curstackinfo->si_next;
545		656
546	while (PL_curstackinfo)	657	while (PL_curstackinfo)
…		…
557		668
558	Safefree (PL_tmps_stack);	669	Safefree (PL_tmps_stack);
559	Safefree (PL_markstack);	670	Safefree (PL_markstack);
560	Safefree (PL_scopestack);	671	Safefree (PL_scopestack);
561	Safefree (PL_savestack);	672	Safefree (PL_savestack);
562	#if !PERL_VERSION_ATLEAST (5,9,0)	673	#if !PERL_VERSION_ATLEAST (5,10,0)
563	Safefree (PL_retstack);	674	Safefree (PL_retstack);
564	#endif	675	#endif
565	}	676	}
566		677
567	static size_t	678	static size_t
…		…
569	{	680	{
570	size_t rss = sizeof (*coro);	681	size_t rss = sizeof (*coro);
571		682
572	if (coro->mainstack)	683	if (coro->mainstack)
573	{	684	{
		685	perl_slots tmp_slot;
		686	perl_slots *slot;
		687
574	if (coro->flags & CF_RUNNING)	688	if (coro->flags & CF_RUNNING)
575	{	689	{
		690	slot = &tmp_slot;
		691
576	#define VAR(name,type)coro->name = PL_ ## name;	692	#define VAR(name,type) slot->name = PL_ ## name;
577	# include "state.h"	693	# include "state.h"
578	#undef VAR	694	#undef VAR
579	}	695	}
		696	else
		697	slot = coro->slot;
580		698
		699	if (slot)
		700	{
581	rss += sizeof (coro->curstackinfo);	701	rss += sizeof (slot->curstackinfo);
582	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
583	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
585	rss += coro->tmps_max * sizeof (SV *);	704	rss += slot->tmps_max * sizeof (SV *);
586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	705	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
587	rss += coro->scopestack_max * sizeof (I32);	706	rss += slot->scopestack_max * sizeof (I32);
588	rss += coro->savestack_max * sizeof (ANY);	707	rss += slot->savestack_max * sizeof (ANY);
589		708
590	#if !PERL_VERSION_ATLEAST (5,9,0)	709	#if !PERL_VERSION_ATLEAST (5,10,0)
591	rss += coro->retstack_max * sizeof (OP *);	710	rss += slot->retstack_max * sizeof (OP *);
592	#endif	711	#endif
		712	}
593	}	713	}
594		714
595	return rss;	715	return rss;
596	}	716	}
597		717
598	/ coroutine stack handling **********************************************/	718	/ coroutine stack handling **********************************************/
		719
		720	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		721	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		722	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		723
		724	/* apparently < 5.8.8 */
		725	#ifndef MgPV_nolen_const
		726	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		727	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		728	(const char*)(mg)->mg_ptr)
		729	#endif
		730
		731	/* we sometimes need to create the effect of entersub calling us */
		732	#define ENTERSUB_HEAD ENTER; SAVETMPS
		733	/* we somtimes need to create the effect of leaving via entersub */
		734	#define ENTERSUB_TAIL LEAVE
		735
		736	/*
		737	* This overrides the default magic get method of %SIG elements.
		738	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		739	* and instead of tryign to save and restore the hash elements, we just provide
		740	* readback here.
		741	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		742	* not expecting this to actually change the hook. This is a potential problem
		743	* when a schedule happens then, but we ignore this.
		744	*/
		745	static int
		746	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		747	{
		748	const char *s = MgPV_nolen_const (mg);
		749
		750	if (*s == '_')
		751	{
		752	SV **svp = 0;
		753
		754	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		755	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		756
		757	if (svp)
		758	{
		759	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		760	return 0;
		761	}
		762	}
		763
		764	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		765	}
		766
		767	static int
		768	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		769	{
		770	const char *s = MgPV_nolen_const (mg);
		771
		772	if (*s == '_')
		773	{
		774	SV **svp = 0;
		775
		776	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		777	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		778
		779	if (svp)
		780	{
		781	SV old = svp;
		782	*svp = 0;
		783	SvREFCNT_dec (old);
		784	return 0;
		785	}
		786	}
		787
		788	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		789	}
		790
		791	static int
		792	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		793	{
		794	const char *s = MgPV_nolen_const (mg);
		795
		796	if (*s == '_')
		797	{
		798	SV **svp = 0;
		799
		800	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		801	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		802
		803	if (svp)
		804	{
		805	SV old = svp;
		806	*svp = newSVsv (sv);
		807	SvREFCNT_dec (old);
		808	return 0;
		809	}
		810	}
		811
		812	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		813	}
599		814
600	static void	815	static void
601	coro_setup (pTHX_ struct coro *coro)	816	coro_setup (pTHX_ struct coro *coro)
602	{	817	{
603	/*	818	/*
…		…
608	PL_runops = RUNOPS_DEFAULT;	823	PL_runops = RUNOPS_DEFAULT;
609	PL_curcop = &PL_compiling;	824	PL_curcop = &PL_compiling;
610	PL_in_eval = EVAL_NULL;	825	PL_in_eval = EVAL_NULL;
611	PL_comppad = 0;	826	PL_comppad = 0;
612	PL_curpm = 0;	827	PL_curpm = 0;
613	PL_curpad = 1;	828	PL_curpad = 0;
614	PL_localizing = 0;	829	PL_localizing = 0;
615	PL_dirty = 0;	830	PL_dirty = 0;
616	PL_restartop = 0;	831	PL_restartop = 0;
		832	#if PERL_VERSION_ATLEAST (5,10,0)
		833	PL_parser = 0;
		834	#endif
		835
		836	/* recreate the die/warn hooks */
		837	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		838	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
617		839
618	GvSV (PL_defgv) = newSV (0);	840	GvSV (PL_defgv) = newSV (0);
619	GvAV (PL_defgv) = coro->args; coro->args = 0;	841	GvAV (PL_defgv) = coro->args; coro->args = 0;
620	GvSV (PL_errgv) = newSV (0);	842	GvSV (PL_errgv) = newSV (0);
621	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	843	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
622	PL_rs = newSVsv (GvSV (irsgv));	844	PL_rs = newSVsv (GvSV (irsgv));
623	PL_defoutgv = SvREFCNT_inc (stdoutgv);	845	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
624		846
625	{	847	{
626	dSP;	848	dSP;
627	LOGOP myop;	849	UNOP myop;
628		850
629	Zero (&myop, 1, LOGOP);	851	Zero (&myop, 1, UNOP);
630	myop.op_next = Nullop;	852	myop.op_next = Nullop;
631	myop.op_flags = OPf_WANT_VOID;	853	myop.op_flags = OPf_WANT_VOID;
632		854
633	PUSHMARK (SP);	855	PUSHMARK (SP);
634	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	856	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
636	PL_op = (OP *)&myop;	858	PL_op = (OP *)&myop;
637	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	859	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
638	SPAGAIN;	860	SPAGAIN;
639	}	861	}
640		862
641	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	863	/* this newly created coroutine might be run on an existing cctx which most
		864	* likely was suspended in set_stacklevel, called from entersub.
		865	* set_stacklevel doesn't do anything on return, but entersub does LEAVE,
		866	* so we ENTER here for symmetry.
		867	*/
		868	ENTERSUB_HEAD;
642	}	869	}
643		870
644	static void	871	static void
645	coro_destroy (pTHX_ struct coro *coro)	872	coro_destruct (pTHX_ struct coro *coro)
646	{	873	{
647	if (!IN_DESTRUCT)	874	if (!IN_DESTRUCT)
648	{	875	{
649	/* restore all saved variables and stuff */	876	/* restore all saved variables and stuff */
650	LEAVE_SCOPE (0);	877	LEAVE_SCOPE (0);
…		…
666	SvREFCNT_dec (GvSV (PL_errgv));	893	SvREFCNT_dec (GvSV (PL_errgv));
667	SvREFCNT_dec (PL_defoutgv);	894	SvREFCNT_dec (PL_defoutgv);
668	SvREFCNT_dec (PL_rs);	895	SvREFCNT_dec (PL_rs);
669	SvREFCNT_dec (GvSV (irsgv));	896	SvREFCNT_dec (GvSV (irsgv));
670		897
		898	SvREFCNT_dec (PL_diehook);
		899	SvREFCNT_dec (PL_warnhook);
		900
671	SvREFCNT_dec (coro->saved_deffh);	901	SvREFCNT_dec (coro->saved_deffh);
672	//SvREFCNT_dec (coro->throw);	902	SvREFCNT_dec (coro->throw);
673		903
674	coro_destroy_stacks (aTHX);	904	coro_destruct_stacks (aTHX);
675	}	905	}
676		906
677	static void	907	INLINE void
678	free_coro_mortal (pTHX)	908	free_coro_mortal (pTHX)
679	{	909	{
680	if (expect_true (coro_mortal))	910	if (expect_true (coro_mortal))
681	{	911	{
682	SvREFCNT_dec (coro_mortal);	912	SvREFCNT_dec (coro_mortal);
…		…
716	: cx->blk_gimme == G_SCALAR ? bot + 1	946	: cx->blk_gimme == G_SCALAR ? bot + 1
717	: bot;	947	: bot;
718		948
719	av_extend (av, top - bot);	949	av_extend (av, top - bot);
720	while (bot < top)	950	while (bot < top)
721	av_push (av, SvREFCNT_inc (*bot++));	951	av_push (av, SvREFCNT_inc_NN (*bot++));
722		952
723	PL_runops = RUNOPS_DEFAULT;	953	PL_runops = RUNOPS_DEFAULT;
724	ENTER;	954	ENTER;
725	SAVETMPS;	955	SAVETMPS;
726	EXTEND (SP, 3);	956	EXTEND (SP, 3);
…		…
764	SAVETMPS;	994	SAVETMPS;
765	EXTEND (SP, 3);	995	EXTEND (SP, 3);
766	PUSHMARK (SP);	996	PUSHMARK (SP);
767	PUSHs (&PL_sv_yes);	997	PUSHs (&PL_sv_yes);
768	PUSHs (fullname);	998	PUSHs (fullname);
769	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	999	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
770	PUTBACK;	1000	PUTBACK;
771	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1001	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
772	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1002	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
773	SPAGAIN;	1003	SPAGAIN;
774	FREETMPS;	1004	FREETMPS;
…		…
806		1036
807	TAINT_NOT;	1037	TAINT_NOT;
808	return 0;	1038	return 0;
809	}	1039	}
810		1040
		1041	static void
		1042	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1043	{
		1044	ta->prev = (struct coro *)cctx;
		1045	ta->next = 0;
		1046	}
		1047
811	/* inject a fake call to Coro::State::_cctx_init into the execution */	1048	/* inject a fake call to Coro::State::_cctx_init into the execution */
812	/* _cctx_init should be careful, as it could be called at almost any time */	1049	/* _cctx_init should be careful, as it could be called at almost any time */
813	/* during execution of a perl program */	1050	/* during execution of a perl program */
		1051	/* also initialises PL_top_env */
814	static void NOINLINE	1052	static void NOINLINE
815	prepare_cctx (pTHX_ coro_cctx *cctx)	1053	cctx_prepare (pTHX_ coro_cctx *cctx)
816	{	1054	{
817	dSP;	1055	dSP;
818	LOGOP myop;	1056	UNOP myop;
819		1057
820	PL_top_env = &PL_start_env;	1058	PL_top_env = &PL_start_env;
821		1059
822	if (cctx->flags & CC_TRACE)	1060	if (cctx->flags & CC_TRACE)
823	PL_runops = runops_trace;	1061	PL_runops = runops_trace;
824		1062
825	Zero (&myop, 1, LOGOP);	1063	Zero (&myop, 1, UNOP);
826	myop.op_next = PL_op;	1064	myop.op_next = PL_op;
827	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1065	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
828		1066
829	PUSHMARK (SP);	1067	PUSHMARK (SP);
830	EXTEND (SP, 2);	1068	EXTEND (SP, 2);
831	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1069	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
832	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1070	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
833	PUTBACK;	1071	PUTBACK;
834	PL_op = (OP *)&myop;	1072	PL_op = (OP *)&myop;
835	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1073	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
836	SPAGAIN;	1074	SPAGAIN;
837	}	1075	}
838		1076
		1077	/* the tail of transfer: execute stuff we can only do after a transfer */
		1078	INLINE void
		1079	transfer_tail (pTHX)
		1080	{
		1081	struct coro next = (struct coro )transfer_next;
		1082	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1083	assert (("FATAL: transfer_next was zero in transfer_tail (please report)", next));
		1084
		1085	free_coro_mortal (aTHX);
		1086	UNLOCK;
		1087
		1088	if (expect_false (next->throw))
		1089	{
		1090	SV *exception = sv_2mortal (next->throw);
		1091
		1092	next->throw = 0;
		1093	sv_setsv (ERRSV, exception);
		1094	croak (0);
		1095	}
		1096	}
		1097
839	/*	1098	/*
840	* this is a _very_ stripped down perl interpreter ;)	1099	* this is a _very_ stripped down perl interpreter ;)
841	*/	1100	*/
842	static void	1101	static void
843	coro_run (void *arg)	1102	cctx_run (void *arg)
844	{	1103	{
		1104	#ifdef USE_ITHREADS
		1105	# if CORO_PTHREAD
		1106	PERL_SET_CONTEXT (coro_thx);
		1107	# endif
		1108	#endif
		1109	{
845	dTHX;	1110	dTHX;
846		1111
847	/* coro_run is the alternative tail of transfer(), so unlock here. */	1112	/* entersub called ENTER, but we never 'returned', undo that here */
848	UNLOCK;	1113	ENTERSUB_TAIL;
849		1114
850	/* we now skip the entersub that lead to transfer() */	1115	/* we now skip the entersub that did lead to transfer() */
851	PL_op = PL_op->op_next;	1116	PL_op = PL_op->op_next;
852		1117
853	/* inject a fake subroutine call to cctx_init */	1118	/* inject a fake subroutine call to cctx_init */
854	prepare_cctx (aTHX_ (coro_cctx *)arg);	1119	cctx_prepare (aTHX_ (coro_cctx *)arg);
855		1120
		1121	/* cctx_run is the alternative tail of transfer() */
		1122	transfer_tail (aTHX);
		1123
856	/* somebody or something will hit me for both perl_run and PL_restartop */	1124	/* somebody or something will hit me for both perl_run and PL_restartop */
857	PL_restartop = PL_op;	1125	PL_restartop = PL_op;
858	perl_run (PL_curinterp);	1126	perl_run (PL_curinterp);
859		1127
860	/*	1128	/*
861	* If perl-run returns we assume exit() was being called or the coro	1129	* If perl-run returns we assume exit() was being called or the coro
862	* fell off the end, which seems to be the only valid (non-bug)	1130	* fell off the end, which seems to be the only valid (non-bug)
863	* reason for perl_run to return. We try to exit by jumping to the	1131	* reason for perl_run to return. We try to exit by jumping to the
864	* bootstrap-time "top" top_env, as we cannot restore the "main"	1132	* bootstrap-time "top" top_env, as we cannot restore the "main"
865	* coroutine as Coro has no such concept	1133	* coroutine as Coro has no such concept
866	*/	1134	*/
867	PL_top_env = main_top_env;	1135	PL_top_env = main_top_env;
868	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1136	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1137	}
869	}	1138	}
870		1139
871	static coro_cctx *	1140	static coro_cctx *
872	cctx_new ()	1141	cctx_new ()
873	{	1142	{
874	coro_cctx *cctx;	1143	coro_cctx *cctx;
		1144
		1145	++cctx_count;
		1146	New (0, cctx, 1, coro_cctx);
		1147
		1148	cctx->gen = cctx_gen;
		1149	cctx->flags = 0;
		1150	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1151
		1152	return cctx;
		1153	}
		1154
		1155	/* create a new cctx only suitable as source */
		1156	static coro_cctx *
		1157	cctx_new_empty ()
		1158	{
		1159	coro_cctx *cctx = cctx_new ();
		1160
		1161	cctx->sptr = 0;
		1162	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1163
		1164	return cctx;
		1165	}
		1166
		1167	/* create a new cctx suitable as destination/running a perl interpreter */
		1168	static coro_cctx *
		1169	cctx_new_run ()
		1170	{
		1171	coro_cctx *cctx = cctx_new ();
875	void *stack_start;	1172	void *stack_start;
876	size_t stack_size;	1173	size_t stack_size;
877		1174
878	++cctx_count;
879
880	Newz (0, cctx, 1, coro_cctx);
881
882	#if HAVE_MMAP	1175	#if HAVE_MMAP
883
884	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1176	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
885	/* mmap supposedly does allocate-on-write for us */	1177	/* mmap supposedly does allocate-on-write for us */
886	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1178	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
887		1179
888	if (cctx->sptr != (void *)-1)	1180	if (cctx->sptr != (void *)-1)
889	{	1181	{
890	# if CORO_STACKGUARD	1182	#if CORO_STACKGUARD
891	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1183	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
892	# endif	1184	#endif
893	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1185	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
894	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1186	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
895	cctx->flags \|= CC_MAPPED;	1187	cctx->flags \|= CC_MAPPED;
896	}	1188	}
897	else	1189	else
898	#endif	1190	#endif
899	{	1191	{
900	cctx->ssize = coro_stacksize * (long)sizeof (long);	1192	cctx->ssize = cctx_stacksize * (long)sizeof (long);
901	New (0, cctx->sptr, coro_stacksize, long);	1193	New (0, cctx->sptr, cctx_stacksize, long);
902		1194
903	if (!cctx->sptr)	1195	if (!cctx->sptr)
904	{	1196	{
905	perror ("FATAL: unable to allocate stack for coroutine");	1197	perror ("FATAL: unable to allocate stack for coroutine");
906	_exit (EXIT_FAILURE);	1198	_exit (EXIT_FAILURE);
…		…
908		1200
909	stack_start = cctx->sptr;	1201	stack_start = cctx->sptr;
910	stack_size = cctx->ssize;	1202	stack_size = cctx->ssize;
911	}	1203	}
912		1204
913	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1205	#if CORO_USE_VALGRIND
		1206	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1207	#endif
		1208
914	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1209	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
915		1210
916	return cctx;	1211	return cctx;
917	}	1212	}
918		1213
919	static void	1214	static void
…		…
921	{	1216	{
922	if (!cctx)	1217	if (!cctx)
923	return;	1218	return;
924		1219
925	--cctx_count;	1220	--cctx_count;
		1221	coro_destroy (&cctx->cctx);
926		1222
		1223	/* coro_transfer creates new, empty cctx's */
		1224	if (cctx->sptr)
		1225	{
927	#if CORO_USE_VALGRIND	1226	#if CORO_USE_VALGRIND
928	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1227	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
929	#endif	1228	#endif
930		1229
931	#if HAVE_MMAP	1230	#if HAVE_MMAP
932	if (cctx->flags & CC_MAPPED)	1231	if (cctx->flags & CC_MAPPED)
933	munmap (cctx->sptr, cctx->ssize);	1232	munmap (cctx->sptr, cctx->ssize);
934	else	1233	else
935	#endif	1234	#endif
936	Safefree (cctx->sptr);	1235	Safefree (cctx->sptr);
		1236	}
937		1237
938	Safefree (cctx);	1238	Safefree (cctx);
939	}	1239	}
940		1240
941	/* wether this cctx should be destructed */	1241	/* wether this cctx should be destructed */
942	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1242	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
943		1243
944	static coro_cctx *	1244	static coro_cctx *
945	cctx_get (pTHX)	1245	cctx_get (pTHX)
946	{	1246	{
947	while (expect_true (cctx_first))	1247	while (expect_true (cctx_first))
…		…
954	return cctx;	1254	return cctx;
955		1255
956	cctx_destroy (cctx);	1256	cctx_destroy (cctx);
957	}	1257	}
958		1258
959	return cctx_new ();	1259	return cctx_new_run ();
960	}	1260	}
961		1261
962	static void	1262	static void
963	cctx_put (coro_cctx *cctx)	1263	cctx_put (coro_cctx *cctx)
964	{	1264	{
		1265	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1266
965	/* free another cctx if overlimit */	1267	/* free another cctx if overlimit */
966	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1268	if (expect_false (cctx_idle >= cctx_max_idle))
967	{	1269	{
968	coro_cctx *first = cctx_first;	1270	coro_cctx *first = cctx_first;
969	cctx_first = first->next;	1271	cctx_first = first->next;
970	--cctx_idle;	1272	--cctx_idle;
971		1273
…		…
991	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1293	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
992		1294
993	if (expect_false (next->flags & CF_DESTROYED))	1295	if (expect_false (next->flags & CF_DESTROYED))
994	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1296	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
995		1297
		1298	#if !PERL_VERSION_ATLEAST (5,10,0)
996	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1299	if (expect_false (PL_lex_state != LEX_NOTPARSING))
997	croak ("Coro::State::transfer called while parsing, but this is not supported");	1300	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1301	#endif
998	}	1302	}
999	}	1303	}
1000		1304
1001	/* always use the TRANSFER macro */	1305	/* always use the TRANSFER macro */
1002	static void NOINLINE	1306	static void NOINLINE
1003	transfer (pTHX_ struct coro prev, struct coro next)	1307	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1004	{	1308	{
1005	dSTACKLEVEL;	1309	dSTACKLEVEL;
1006		1310
1007	/* sometimes transfer is only called to set idle_sp */	1311	/* sometimes transfer is only called to set idle_sp */
1008	if (expect_false (!next))	1312	if (expect_false (!next))
…		…
1014	{	1318	{
1015	coro_cctx *prev__cctx;	1319	coro_cctx *prev__cctx;
1016		1320
1017	if (expect_false (prev->flags & CF_NEW))	1321	if (expect_false (prev->flags & CF_NEW))
1018	{	1322	{
1019	/* create a new empty context */	1323	/* create a new empty/source context */
1020	Newz (0, prev->cctx, 1, coro_cctx);	1324	prev->cctx = cctx_new_empty ();
1021	prev->flags &= ~CF_NEW;	1325	prev->flags &= ~CF_NEW;
1022	prev->flags \|= CF_RUNNING;	1326	prev->flags \|= CF_RUNNING;
1023	}	1327	}
1024		1328
1025	prev->flags &= ~CF_RUNNING;	1329	prev->flags &= ~CF_RUNNING;
1026	next->flags \|= CF_RUNNING;	1330	next->flags \|= CF_RUNNING;
1027		1331
1028	LOCK;	1332	LOCK;
		1333
		1334	/* first get rid of the old state */
		1335	save_perl (aTHX_ prev);
1029		1336
1030	if (expect_false (next->flags & CF_NEW))	1337	if (expect_false (next->flags & CF_NEW))
1031	{	1338	{
1032	/* need to start coroutine */	1339	/* need to start coroutine */
1033	next->flags &= ~CF_NEW;	1340	next->flags &= ~CF_NEW;
1034	/* first get rid of the old state */
1035	save_perl (aTHX_ prev);
1036	/* setup coroutine call */	1341	/* setup coroutine call */
1037	coro_setup (aTHX_ next);	1342	coro_setup (aTHX_ next);
1038	}	1343	}
1039	else	1344	else
1040	{
1041	/* coroutine already started */
1042	save_perl (aTHX_ prev);
1043	load_perl (aTHX_ next);	1345	load_perl (aTHX_ next);
1044	}
1045		1346
1046	prev__cctx = prev->cctx;	1347	prev__cctx = prev->cctx;
1047		1348
1048	/* possibly "free" the cctx */	1349	/* possibly untie and reuse the cctx */
1049	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1350	if (expect_true (
		1351	prev__cctx->idle_sp == STACKLEVEL
		1352	&& !(prev__cctx->flags & CC_TRACE)
		1353	&& !force_cctx
		1354	))
1050	{	1355	{
1051	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1356	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1052	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1357	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1053		1358
1054	prev->cctx = 0;	1359	prev->cctx = 0;
1055		1360
1056	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1361	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1057	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1362	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1058	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1363	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1364	if (!next->cctx)
1059	next->cctx = cctx_get (aTHX);	1365	next->cctx = cctx_get (aTHX);
1060		1366
1061	cctx_put (prev__cctx);	1367	cctx_put (prev__cctx);
1062	}	1368	}
1063		1369
1064	++next->usecount;	1370	++next->usecount;
1065		1371
1066	if (expect_true (!next->cctx))	1372	if (expect_true (!next->cctx))
1067	next->cctx = cctx_get (aTHX);	1373	next->cctx = cctx_get (aTHX);
		1374
		1375	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1376	transfer_next = next;
1068		1377
1069	if (expect_false (prev__cctx != next->cctx))	1378	if (expect_false (prev__cctx != next->cctx))
1070	{	1379	{
1071	prev__cctx->top_env = PL_top_env;	1380	prev__cctx->top_env = PL_top_env;
1072	PL_top_env = next->cctx->top_env;	1381	PL_top_env = next->cctx->top_env;
1073	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1382	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1074	}	1383	}
1075		1384
1076	free_coro_mortal (aTHX);	1385	transfer_tail (aTHX);
1077	UNLOCK;
1078	}	1386	}
1079	}	1387	}
1080		1388
1081	struct transfer_args
1082	{
1083	struct coro prev, next;
1084	};
1085
1086	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1389	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1087	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1390	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1088		1391
1089	/ high level stuff ******************************************************/	1392	/ high level stuff ******************************************************/
1090		1393
1091	static int	1394	static int
…		…
1115	croak ("FATAL: tried to destroy currently running coroutine");	1418	croak ("FATAL: tried to destroy currently running coroutine");
1116		1419
1117	save_perl (aTHX_ &temp);	1420	save_perl (aTHX_ &temp);
1118	load_perl (aTHX_ coro);	1421	load_perl (aTHX_ coro);
1119		1422
1120	coro_destroy (aTHX_ coro);	1423	coro_destruct (aTHX_ coro);
1121		1424
1122	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1425	load_perl (aTHX_ &temp);
1123		1426
1124	coro->mainstack = 0;	1427	coro->slot = 0;
1125	}	1428	}
1126		1429
1127	cctx_destroy (coro->cctx);	1430	cctx_destroy (coro->cctx);
1128	SvREFCNT_dec (coro->args);	1431	SvREFCNT_dec (coro->args);
1129		1432
…		…
1185	{	1488	{
1186	dTHX;	1489	dTHX;
1187	struct transfer_args ta;	1490	struct transfer_args ta;
1188		1491
1189	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1492	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1190	TRANSFER (ta);	1493	TRANSFER (ta, 1);
1191	}	1494	}
1192		1495
1193	/ Coro ******************************************************************/	1496	/ Coro ******************************************************************/
1194		1497
1195	static void	1498	static void
…		…
1197	{	1500	{
1198	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1501	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1199	}	1502	}
1200		1503
1201	static SV *	1504	static SV *
1202	coro_deq (pTHX_ int min_prio)	1505	coro_deq (pTHX)
1203	{	1506	{
1204	int prio = PRIO_MAX - PRIO_MIN;	1507	int prio;
1205		1508
1206	min_prio -= PRIO_MIN;
1207	if (min_prio < 0)
1208	min_prio = 0;
1209
1210	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1509	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1211	if (AvFILLp (coro_ready [prio]) >= 0)	1510	if (AvFILLp (coro_ready [prio]) >= 0)
1212	return av_shift (coro_ready [prio]);	1511	return av_shift (coro_ready [prio]);
1213		1512
1214	return 0;	1513	return 0;
1215	}	1514	}
…		…
1217	static int	1516	static int
1218	api_ready (SV *coro_sv)	1517	api_ready (SV *coro_sv)
1219	{	1518	{
1220	dTHX;	1519	dTHX;
1221	struct coro *coro;	1520	struct coro *coro;
		1521	SV *sv_hook;
		1522	void (*xs_hook)(void);
1222		1523
1223	if (SvROK (coro_sv))	1524	if (SvROK (coro_sv))
1224	coro_sv = SvRV (coro_sv);	1525	coro_sv = SvRV (coro_sv);
1225		1526
1226	coro = SvSTATE (coro_sv);	1527	coro = SvSTATE (coro_sv);
…		…
1229	return 0;	1530	return 0;
1230		1531
1231	coro->flags \|= CF_READY;	1532	coro->flags \|= CF_READY;
1232		1533
1233	LOCK;	1534	LOCK;
		1535
		1536	sv_hook = coro_nready ? 0 : coro_readyhook;
		1537	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1538
1234	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1539	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1235	++coro_nready;	1540	++coro_nready;
		1541
1236	UNLOCK;	1542	UNLOCK;
		1543
		1544	if (sv_hook)
		1545	{
		1546	dSP;
		1547
		1548	ENTER;
		1549	SAVETMPS;
		1550
		1551	PUSHMARK (SP);
		1552	PUTBACK;
		1553	call_sv (sv_hook, G_DISCARD);
		1554	SPAGAIN;
		1555
		1556	FREETMPS;
		1557	LEAVE;
		1558	}
		1559
		1560	if (xs_hook)
		1561	xs_hook ();
1237		1562
1238	return 1;	1563	return 1;
1239	}	1564	}
1240		1565
1241	static int	1566	static int
1242	api_is_ready (SV *coro_sv)	1567	api_is_ready (SV *coro_sv)
1243	{	1568	{
1244	dTHX;	1569	dTHX;
		1570
1245	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1571	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1246	}	1572	}
1247		1573
1248	static void	1574	INLINE void
1249	prepare_schedule (pTHX_ struct transfer_args *ta)	1575	prepare_schedule (pTHX_ struct transfer_args *ta)
1250	{	1576	{
1251	SV prev_sv, next_sv;	1577	SV prev_sv, next_sv;
1252		1578
1253	for (;;)	1579	for (;;)
1254	{	1580	{
1255	LOCK;	1581	LOCK;
1256	next_sv = coro_deq (aTHX_ PRIO_MIN);	1582	next_sv = coro_deq (aTHX);
1257		1583
1258	/* nothing to schedule: call the idle handler */	1584	/* nothing to schedule: call the idle handler */
1259	if (expect_false (!next_sv))	1585	if (expect_false (!next_sv))
1260	{	1586	{
1261	dSP;	1587	dSP;
…		…
1265	SAVETMPS;	1591	SAVETMPS;
1266		1592
1267	PUSHMARK (SP);	1593	PUSHMARK (SP);
1268	PUTBACK;	1594	PUTBACK;
1269	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1595	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1596	SPAGAIN;
1270		1597
1271	FREETMPS;	1598	FREETMPS;
1272	LEAVE;	1599	LEAVE;
1273	continue;	1600	continue;
1274	}	1601	}
…		…
1278	/* cannot transfer to destroyed coros, skip and look for next */	1605	/* cannot transfer to destroyed coros, skip and look for next */
1279	if (expect_false (ta->next->flags & CF_DESTROYED))	1606	if (expect_false (ta->next->flags & CF_DESTROYED))
1280	{	1607	{
1281	UNLOCK;	1608	UNLOCK;
1282	SvREFCNT_dec (next_sv);	1609	SvREFCNT_dec (next_sv);
1283	/* coro_nready is already taken care of by destroy */	1610	/* coro_nready has already been taken care of by destroy */
1284	continue;	1611	continue;
1285	}	1612	}
1286		1613
1287	--coro_nready;	1614	--coro_nready;
1288	UNLOCK;	1615	UNLOCK;
…		…
1291		1618
1292	/* free this only after the transfer */	1619	/* free this only after the transfer */
1293	prev_sv = SvRV (coro_current);	1620	prev_sv = SvRV (coro_current);
1294	ta->prev = SvSTATE (prev_sv);	1621	ta->prev = SvSTATE (prev_sv);
1295	TRANSFER_CHECK (*ta);	1622	TRANSFER_CHECK (*ta);
1296	assert (ta->next->flags & CF_READY);	1623	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1297	ta->next->flags &= ~CF_READY;	1624	ta->next->flags &= ~CF_READY;
1298	SvRV_set (coro_current, next_sv);	1625	SvRV_set (coro_current, next_sv);
1299		1626
1300	LOCK;	1627	LOCK;
1301	free_coro_mortal (aTHX);	1628	free_coro_mortal (aTHX);
1302	coro_mortal = prev_sv;	1629	coro_mortal = prev_sv;
1303	UNLOCK;	1630	UNLOCK;
1304	}	1631	}
1305		1632
1306	static void	1633	INLINE void
1307	prepare_cede (pTHX_ struct transfer_args *ta)	1634	prepare_cede (pTHX_ struct transfer_args *ta)
1308	{	1635	{
1309	api_ready (coro_current);	1636	api_ready (coro_current);
1310	prepare_schedule (aTHX_ ta);	1637	prepare_schedule (aTHX_ ta);
1311	}	1638	}
…		…
1329	{	1656	{
1330	dTHX;	1657	dTHX;
1331	struct transfer_args ta;	1658	struct transfer_args ta;
1332		1659
1333	prepare_schedule (aTHX_ &ta);	1660	prepare_schedule (aTHX_ &ta);
1334	TRANSFER (ta);	1661	TRANSFER (ta, 1);
1335	}	1662	}
1336		1663
1337	static int	1664	static int
1338	api_cede (void)	1665	api_cede (void)
1339	{	1666	{
…		…
1342		1669
1343	prepare_cede (aTHX_ &ta);	1670	prepare_cede (aTHX_ &ta);
1344		1671
1345	if (expect_true (ta.prev != ta.next))	1672	if (expect_true (ta.prev != ta.next))
1346	{	1673	{
1347	TRANSFER (ta);	1674	TRANSFER (ta, 1);
1348	return 1;	1675	return 1;
1349	}	1676	}
1350	else	1677	else
1351	return 0;	1678	return 0;
1352	}	1679	}
…		…
1357	dTHX;	1684	dTHX;
1358	struct transfer_args ta;	1685	struct transfer_args ta;
1359		1686
1360	if (prepare_cede_notself (aTHX_ &ta))	1687	if (prepare_cede_notself (aTHX_ &ta))
1361	{	1688	{
1362	TRANSFER (ta);	1689	TRANSFER (ta, 1);
1363	return 1;	1690	return 1;
1364	}	1691	}
1365	else	1692	else
1366	return 0;	1693	return 0;
1367	}	1694	}
…		…
1373	struct coro *coro = SvSTATE (coro_sv);	1700	struct coro *coro = SvSTATE (coro_sv);
1374		1701
1375	if (flags & CC_TRACE)	1702	if (flags & CC_TRACE)
1376	{	1703	{
1377	if (!coro->cctx)	1704	if (!coro->cctx)
1378	coro->cctx = cctx_new ();	1705	coro->cctx = cctx_new_run ();
1379	else if (!(coro->cctx->flags & CC_TRACE))	1706	else if (!(coro->cctx->flags & CC_TRACE))
1380	croak ("cannot enable tracing on coroutine with custom stack");	1707	croak ("cannot enable tracing on coroutine with custom stack");
1381		1708
1382	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1709	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1383	}	1710	}
…		…
1386	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1713	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1387		1714
1388	if (coro->flags & CF_RUNNING)	1715	if (coro->flags & CF_RUNNING)
1389	PL_runops = RUNOPS_DEFAULT;	1716	PL_runops = RUNOPS_DEFAULT;
1390	else	1717	else
1391	coro->runops = RUNOPS_DEFAULT;	1718	coro->slot->runops = RUNOPS_DEFAULT;
		1719	}
		1720	}
		1721
		1722	#if 0
		1723	static int
		1724	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1725	{
		1726	AV *padlist;
		1727	AV av = (AV )mg->mg_obj;
		1728
		1729	abort ();
		1730
		1731	return 0;
		1732	}
		1733
		1734	static MGVTBL coro_gensub_vtbl = {
		1735	0, 0, 0, 0,
		1736	coro_gensub_free
		1737	};
		1738	#endif
		1739
		1740	/*****************************************************************************/
		1741	/* PerlIO::cede */
		1742
		1743	typedef struct
		1744	{
		1745	PerlIOBuf base;
		1746	NV next, every;
		1747	} PerlIOCede;
		1748
		1749	static IV
		1750	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1751	{
		1752	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1753
		1754	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1755	self->next = nvtime () + self->every;
		1756
		1757	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1758	}
		1759
		1760	static SV *
		1761	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1762	{
		1763	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1764
		1765	return newSVnv (self->every);
		1766	}
		1767
		1768	static IV
		1769	PerlIOCede_flush (pTHX_ PerlIO *f)
		1770	{
		1771	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1772	double now = nvtime ();
		1773
		1774	if (now >= self->next)
1392	}	1775	{
		1776	api_cede ();
		1777	self->next = now + self->every;
		1778	}
		1779
		1780	return PerlIOBuf_flush (aTHX_ f);
1393	}	1781	}
		1782
		1783	static PerlIO_funcs PerlIO_cede =
		1784	{
		1785	sizeof(PerlIO_funcs),
		1786	"cede",
		1787	sizeof(PerlIOCede),
		1788	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1789	PerlIOCede_pushed,
		1790	PerlIOBuf_popped,
		1791	PerlIOBuf_open,
		1792	PerlIOBase_binmode,
		1793	PerlIOCede_getarg,
		1794	PerlIOBase_fileno,
		1795	PerlIOBuf_dup,
		1796	PerlIOBuf_read,
		1797	PerlIOBuf_unread,
		1798	PerlIOBuf_write,
		1799	PerlIOBuf_seek,
		1800	PerlIOBuf_tell,
		1801	PerlIOBuf_close,
		1802	PerlIOCede_flush,
		1803	PerlIOBuf_fill,
		1804	PerlIOBase_eof,
		1805	PerlIOBase_error,
		1806	PerlIOBase_clearerr,
		1807	PerlIOBase_setlinebuf,
		1808	PerlIOBuf_get_base,
		1809	PerlIOBuf_bufsiz,
		1810	PerlIOBuf_get_ptr,
		1811	PerlIOBuf_get_cnt,
		1812	PerlIOBuf_set_ptrcnt,
		1813	};
		1814
1394		1815
1395	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1816	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1396		1817
1397	PROTOTYPES: DISABLE	1818	PROTOTYPES: DISABLE
1398		1819
1399	BOOT:	1820	BOOT:
1400	{	1821	{
1401	#ifdef USE_ITHREADS	1822	#ifdef USE_ITHREADS
1402	MUTEX_INIT (&coro_mutex);	1823	MUTEX_INIT (&coro_lock);
		1824	# if CORO_PTHREAD
		1825	coro_thx = PERL_GET_CONTEXT;
		1826	# endif
1403	#endif	1827	#endif
1404	BOOT_PAGESIZE;	1828	BOOT_PAGESIZE;
1405		1829
1406	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1830	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1407	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1831	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1832
		1833	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1834	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1835	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1836
		1837	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1838	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1839	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1408		1840
1409	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1841	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1410		1842
1411	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1843	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1412	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1844	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1417	main_top_env = PL_top_env;	1849	main_top_env = PL_top_env;
1418		1850
1419	while (main_top_env->je_prev)	1851	while (main_top_env->je_prev)
1420	main_top_env = main_top_env->je_prev;	1852	main_top_env = main_top_env->je_prev;
1421		1853
1422	coroapi.ver = CORO_API_VERSION;	1854	coroapi.ver = CORO_API_VERSION;
		1855	coroapi.rev = CORO_API_REVISION;
1423	coroapi.transfer = api_transfer;	1856	coroapi.transfer = api_transfer;
		1857
		1858	{
		1859	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1860
		1861	if (!svp) croak ("Time::HiRes is required");
		1862	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1863
		1864	nvtime = INT2PTR (double ()(), SvIV (svp));
		1865	}
1424		1866
1425	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1867	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1426	}	1868	}
1427		1869
1428	SV *	1870	SV *
1429	new (char *klass, ...)	1871	new (char *klass, ...)
1430	CODE:	1872	CODE:
1431	{	1873	{
1432	struct coro *coro;	1874	struct coro *coro;
		1875	MAGIC *mg;
1433	HV *hv;	1876	HV *hv;
1434	int i;	1877	int i;
1435		1878
1436	Newz (0, coro, 1, struct coro);	1879	Newz (0, coro, 1, struct coro);
1437	coro->args = newAV ();	1880	coro->args = newAV ();
…		…
1440	if (coro_first) coro_first->prev = coro;	1883	if (coro_first) coro_first->prev = coro;
1441	coro->next = coro_first;	1884	coro->next = coro_first;
1442	coro_first = coro;	1885	coro_first = coro;
1443		1886
1444	coro->hv = hv = newHV ();	1887	coro->hv = hv = newHV ();
1445	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1888	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1889	mg->mg_flags \|= MGf_DUP;
1446	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1890	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1447		1891
1448	av_extend (coro->args, items - 1);	1892	av_extend (coro->args, items - 1);
1449	for (i = 1; i < items; i++)	1893	for (i = 1; i < items; i++)
1450	av_push (coro->args, newSVsv (ST (i)));	1894	av_push (coro->args, newSVsv (ST (i)));
…		…
1464	Coro::cede_notself = 4	1908	Coro::cede_notself = 4
1465	CODE:	1909	CODE:
1466	{	1910	{
1467	struct transfer_args ta;	1911	struct transfer_args ta;
1468		1912
		1913	PUTBACK;
1469	switch (ix)	1914	switch (ix)
1470	{	1915	{
1471	case 0:	1916	case 0:
1472	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1917	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0)));
1473	ta.next = 0;
1474	break;	1918	break;
1475		1919
1476	case 1:	1920	case 1:
1477	if (items != 2)	1921	if (items != 2)
1478	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1922	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1479		1923
1480	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1924	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1481	break;	1925	break;
1482		1926
1483	case 2:	1927	case 2:
…		…
1492	if (!prepare_cede_notself (aTHX_ &ta))	1936	if (!prepare_cede_notself (aTHX_ &ta))
1493	XSRETURN_EMPTY;	1937	XSRETURN_EMPTY;
1494		1938
1495	break;	1939	break;
1496	}	1940	}
		1941	SPAGAIN;
1497		1942
1498	BARRIER;	1943	BARRIER;
		1944	PUTBACK;
1499	TRANSFER (ta);	1945	TRANSFER (ta, 0);
1500		1946	SPAGAIN; /* might be the sp of a different coroutine now */
1501	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1947	/* be extra careful not to ever do anything after TRANSFER */
1502	XSRETURN_YES;
1503	}	1948	}
1504		1949
1505	bool	1950	bool
1506	_destroy (SV *coro_sv)	1951	_destroy (SV *coro_sv)
1507	CODE:	1952	CODE:
1508	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1953	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1509	OUTPUT:	1954	OUTPUT:
1510	RETVAL	1955	RETVAL
1511		1956
1512	void	1957	void
1513	_exit (code)	1958	_exit (int code)
1514	int code
1515	PROTOTYPE: $	1959	PROTOTYPE: $
1516	CODE:	1960	CODE:
1517	_exit (code);	1961	_exit (code);
1518		1962
1519	int	1963	int
1520	cctx_stacksize (int new_stacksize = 0)	1964	cctx_stacksize (int new_stacksize = 0)
1521	CODE:	1965	CODE:
1522	RETVAL = coro_stacksize;	1966	RETVAL = cctx_stacksize;
1523	if (new_stacksize)	1967	if (new_stacksize)
		1968	{
1524	coro_stacksize = new_stacksize;	1969	cctx_stacksize = new_stacksize;
		1970	++cctx_gen;
		1971	}
		1972	OUTPUT:
		1973	RETVAL
		1974
		1975	int
		1976	cctx_max_idle (int max_idle = 0)
		1977	CODE:
		1978	RETVAL = cctx_max_idle;
		1979	if (max_idle > 1)
		1980	cctx_max_idle = max_idle;
1525	OUTPUT:	1981	OUTPUT:
1526	RETVAL	1982	RETVAL
1527		1983
1528	int	1984	int
1529	cctx_count ()	1985	cctx_count ()
…		…
1553	call (Coro::State coro, SV *coderef)	2009	call (Coro::State coro, SV *coderef)
1554	ALIAS:	2010	ALIAS:
1555	eval = 1	2011	eval = 1
1556	CODE:	2012	CODE:
1557	{	2013	{
1558	if (coro->mainstack)	2014	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1559	{	2015	{
1560	struct coro temp;	2016	struct coro temp;
1561	Zero (&temp, 1, struct coro);
1562		2017
1563	if (!(coro->flags & CF_RUNNING))	2018	if (!(coro->flags & CF_RUNNING))
1564	{	2019	{
		2020	PUTBACK;
1565	save_perl (aTHX_ &temp);	2021	save_perl (aTHX_ &temp);
1566	load_perl (aTHX_ coro);	2022	load_perl (aTHX_ coro);
1567	}	2023	}
1568		2024
1569	{	2025	{
1570	dSP;	2026	dSP;
1571	ENTER;	2027	ENTER;
1572	SAVETMPS;	2028	SAVETMPS;
		2029	PUTBACK;
		2030	PUSHSTACK;
1573	PUSHMARK (SP);	2031	PUSHMARK (SP);
1574	PUTBACK;	2032
1575	if (ix)	2033	if (ix)
1576	eval_sv (coderef, 0);	2034	eval_sv (coderef, 0);
1577	else	2035	else
1578	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	2036	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		2037
		2038	POPSTACK;
1579	SPAGAIN;	2039	SPAGAIN;
1580	FREETMPS;	2040	FREETMPS;
1581	LEAVE;	2041	LEAVE;
1582	PUTBACK;	2042	PUTBACK;
1583	}	2043	}
1584		2044
1585	if (!(coro->flags & CF_RUNNING))	2045	if (!(coro->flags & CF_RUNNING))
1586	{	2046	{
1587	save_perl (aTHX_ coro);	2047	save_perl (aTHX_ coro);
1588	load_perl (aTHX_ &temp);	2048	load_perl (aTHX_ &temp);
		2049	SPAGAIN;
1589	}	2050	}
1590	}	2051	}
1591	}	2052	}
1592		2053
1593	SV *	2054	SV *
…		…
1602	RETVAL = boolSV (coro->flags & ix);	2063	RETVAL = boolSV (coro->flags & ix);
1603	OUTPUT:	2064	OUTPUT:
1604	RETVAL	2065	RETVAL
1605		2066
1606	void	2067	void
		2068	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2069	PROTOTYPE: $;$
		2070	CODE:
		2071	SvREFCNT_dec (self->throw);
		2072	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2073
		2074	void
1607	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2075	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1608		2076
1609	SV *	2077	SV *
1610	has_stack (Coro::State coro)	2078	has_cctx (Coro::State coro)
1611	PROTOTYPE: $	2079	PROTOTYPE: $
1612	CODE:	2080	CODE:
1613	RETVAL = boolSV (!!coro->cctx);	2081	RETVAL = boolSV (!!coro->cctx);
1614	OUTPUT:	2082	OUTPUT:
1615	RETVAL	2083	RETVAL
…		…
1620	CODE:	2088	CODE:
1621	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2089	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1622	OUTPUT:	2090	OUTPUT:
1623	RETVAL	2091	RETVAL
1624		2092
1625	IV	2093	UV
1626	rss (Coro::State coro)	2094	rss (Coro::State coro)
1627	PROTOTYPE: $	2095	PROTOTYPE: $
1628	ALIAS:	2096	ALIAS:
1629	usecount = 1	2097	usecount = 1
1630	CODE:	2098	CODE:
…		…
1634	case 1: RETVAL = coro->usecount; break;	2102	case 1: RETVAL = coro->usecount; break;
1635	}	2103	}
1636	OUTPUT:	2104	OUTPUT:
1637	RETVAL	2105	RETVAL
1638		2106
		2107	void
		2108	force_cctx ()
		2109	CODE:
		2110	struct coro *coro = SvSTATE (coro_current);
		2111	coro->cctx->idle_sp = 0;
		2112
		2113	void
		2114	swap_defsv (Coro::State self)
		2115	PROTOTYPE: $
		2116	ALIAS:
		2117	swap_defav = 1
		2118	CODE:
		2119	if (!self->slot)
		2120	croak ("cannot swap state with coroutine that has no saved state");
		2121	else
		2122	{
		2123	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2124	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2125
		2126	SV tmp = src; src = dst; *dst = tmp;
		2127	}
1639		2128
1640	MODULE = Coro::State PACKAGE = Coro	2129	MODULE = Coro::State PACKAGE = Coro
1641		2130
1642	BOOT:	2131	BOOT:
1643	{	2132	{
1644	int i;	2133	int i;
1645		2134
1646	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1647	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1648	av_async_pool = get_av ("Coro::async_pool", TRUE);	2135	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2136	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2137	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1649		2138
1650	coro_current = get_sv ("Coro::current", FALSE);	2139	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1651	SvREADONLY_on (coro_current);	2140	SvREADONLY_on (coro_current);
1652		2141
1653	coro_stash = gv_stashpv ("Coro", TRUE);	2142	coro_stash = gv_stashpv ("Coro", TRUE);
1654		2143
1655	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2144	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1656	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	2145	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1657	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	2146	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1658	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	2147	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1661		2150
1662	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	2151	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1663	coro_ready[i] = newAV ();	2152	coro_ready[i] = newAV ();
1664		2153
1665	{	2154	{
1666	SV *sv = perl_get_sv("Coro::API", 1);	2155	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1667		2156
1668	coroapi.schedule = api_schedule;	2157	coroapi.schedule = api_schedule;
1669	coroapi.cede = api_cede;	2158	coroapi.cede = api_cede;
1670	coroapi.cede_notself = api_cede_notself;	2159	coroapi.cede_notself = api_cede_notself;
1671	coroapi.ready = api_ready;	2160	coroapi.ready = api_ready;
…		…
1682	void	2171	void
1683	_set_current (SV *current)	2172	_set_current (SV *current)
1684	PROTOTYPE: $	2173	PROTOTYPE: $
1685	CODE:	2174	CODE:
1686	SvREFCNT_dec (SvRV (coro_current));	2175	SvREFCNT_dec (SvRV (coro_current));
1687	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2176	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2177
		2178	void
		2179	_set_readyhook (SV *hook)
		2180	PROTOTYPE: $
		2181	CODE:
		2182	LOCK;
		2183	SvREFCNT_dec (coro_readyhook);
		2184	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2185	UNLOCK;
1688		2186
1689	int	2187	int
1690	prio (Coro::State coro, int newprio = 0)	2188	prio (Coro::State coro, int newprio = 0)
1691	ALIAS:	2189	ALIAS:
1692	nice = 1	2190	nice = 1
…		…
1735	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2233	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1736	AV *invoke_av;	2234	AV *invoke_av;
1737	int i, len;	2235	int i, len;
1738		2236
1739	if (!invoke)	2237	if (!invoke)
		2238	{
		2239	SV *old = PL_diehook;
		2240	PL_diehook = 0;
		2241	SvREFCNT_dec (old);
1740	croak ("\3terminate\2\n");	2242	croak ("\3async_pool terminate\2\n");
		2243	}
1741		2244
1742	SvREFCNT_dec (coro->saved_deffh);	2245	SvREFCNT_dec (coro->saved_deffh);
1743	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2246	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1744		2247
1745	hv_store (hv, "desc", sizeof ("desc") - 1,	2248	hv_store (hv, "desc", sizeof ("desc") - 1,
1746	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2249	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1747		2250
1748	invoke_av = (AV *)SvRV (invoke);	2251	invoke_av = (AV *)SvRV (invoke);
…		…
1752		2255
1753	if (len > 0)	2256	if (len > 0)
1754	{	2257	{
1755	av_fill (defav, len - 1);	2258	av_fill (defav, len - 1);
1756	for (i = 0; i < len; ++i)	2259	for (i = 0; i < len; ++i)
1757	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2260	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1758	}	2261	}
1759		2262
1760	SvREFCNT_dec (invoke);	2263	SvREFCNT_dec (invoke);
1761	}	2264	}
1762		2265
…		…
1769	sv_setsv (cb, &PL_sv_undef);	2272	sv_setsv (cb, &PL_sv_undef);
1770		2273
1771	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2274	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1772	coro->saved_deffh = 0;	2275	coro->saved_deffh = 0;
1773		2276
1774	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2277	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1775	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2278	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2279	{
		2280	SV *old = PL_diehook;
		2281	PL_diehook = 0;
		2282	SvREFCNT_dec (old);
1776	croak ("\3terminate\2\n");	2283	croak ("\3async_pool terminate\2\n");
		2284	}
1777		2285
1778	av_clear (GvAV (PL_defgv));	2286	av_clear (GvAV (PL_defgv));
1779	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2287	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1780	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2288	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1781		2289
…		…
1785	api_trace (coro_current, 0);	2293	api_trace (coro_current, 0);
1786		2294
1787	av_push (av_async_pool, newSVsv (coro_current));	2295	av_push (av_async_pool, newSVsv (coro_current));
1788	}	2296	}
1789		2297
		2298	#if 0
		2299
		2300	void
		2301	_generator_call (...)
		2302	PROTOTYPE: @
		2303	PPCODE:
		2304	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2305	xxxx
		2306	abort ();
		2307
		2308	SV *
		2309	gensub (SV *sub, ...)
		2310	PROTOTYPE: &;@
		2311	CODE:
		2312	{
		2313	struct coro *coro;
		2314	MAGIC *mg;
		2315	CV *xcv;
		2316	CV ncv = (CV )newSV_type (SVt_PVCV);
		2317	int i;
		2318
		2319	CvGV (ncv) = CvGV (cv);
		2320	CvFILE (ncv) = CvFILE (cv);
		2321
		2322	Newz (0, coro, 1, struct coro);
		2323	coro->args = newAV ();
		2324	coro->flags = CF_NEW;
		2325
		2326	av_extend (coro->args, items - 1);
		2327	for (i = 1; i < items; i++)
		2328	av_push (coro->args, newSVsv (ST (i)));
		2329
		2330	CvISXSUB_on (ncv);
		2331	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2332
		2333	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2334
		2335	CvXSUB (ncv) = CvXSUB (xcv);
		2336	CvANON_on (ncv);
		2337
		2338	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2339	RETVAL = newRV_noinc ((SV *)ncv);
		2340	}
		2341	OUTPUT:
		2342	RETVAL
		2343
		2344	#endif
		2345
1790		2346
1791	MODULE = Coro::State PACKAGE = Coro::AIO	2347	MODULE = Coro::State PACKAGE = Coro::AIO
1792		2348
1793	SV *	2349	void
1794	_get_state ()	2350	_get_state (SV *self)
1795	CODE:	2351	PPCODE:
1796	{	2352	{
1797	struct io_state *data;	2353	AV *defav = GvAV (PL_defgv);
1798		2354	AV *av = newAV ();
		2355	int i;
1799	RETVAL = newSV (sizeof (struct io_state));	2356	SV *data_sv = newSV (sizeof (struct io_state));
1800	data = (struct io_state *)SvPVX (RETVAL);	2357	struct io_state data = (struct io_state )SvPVX (data_sv);
1801	SvCUR_set (RETVAL, sizeof (struct io_state));	2358	SvCUR_set (data_sv, sizeof (struct io_state));
1802	SvPOK_only (RETVAL);	2359	SvPOK_only (data_sv);
1803		2360
1804	data->errorno = errno;	2361	data->errorno = errno;
1805	data->laststype = PL_laststype;	2362	data->laststype = PL_laststype;
1806	data->laststatval = PL_laststatval;	2363	data->laststatval = PL_laststatval;
1807	data->statcache = PL_statcache;	2364	data->statcache = PL_statcache;
		2365
		2366	av_extend (av, AvFILLp (defav) + 1 + 1);
		2367
		2368	for (i = 0; i <= AvFILLp (defav); ++i)
		2369	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2370
		2371	av_push (av, data_sv);
		2372
		2373	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2374
		2375	api_ready (self);
1808	}	2376	}
1809	OUTPUT:
1810	RETVAL
1811		2377
1812	void	2378	void
1813	_set_state (char *data_)	2379	_set_state (SV *state)
1814	PROTOTYPE: $	2380	PROTOTYPE: $
1815	CODE:	2381	PPCODE:
1816	{	2382	{
1817	struct io_state data = (void )data_;	2383	AV av = (AV )SvRV (state);
		2384	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2385	int i;
1818		2386
1819	errno = data->errorno;	2387	errno = data->errorno;
1820	PL_laststype = data->laststype;	2388	PL_laststype = data->laststype;
1821	PL_laststatval = data->laststatval;	2389	PL_laststatval = data->laststatval;
1822	PL_statcache = data->statcache;	2390	PL_statcache = data->statcache;
1823	}
1824		2391
		2392	EXTEND (SP, AvFILLp (av));
		2393	for (i = 0; i < AvFILLp (av); ++i)
		2394	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2395	}
		2396
		2397
		2398	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2399
		2400	BOOT:
		2401	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2402
		2403	SV *
		2404	_schedule (...)
		2405	PROTOTYPE: @
		2406	CODE:
		2407	{
		2408	static int incede;
		2409
		2410	api_cede_notself ();
		2411
		2412	++incede;
		2413	while (coro_nready >= incede && api_cede ())
		2414	;
		2415
		2416	sv_setsv (sv_activity, &PL_sv_undef);
		2417	if (coro_nready >= incede)
		2418	{
		2419	PUSHMARK (SP);
		2420	PUTBACK;
		2421	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2422	SPAGAIN;
		2423	}
		2424
		2425	--incede;
		2426	}
		2427
		2428
		2429	MODULE = Coro::State PACKAGE = PerlIO::cede
		2430
		2431	BOOT:
		2432	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2433

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Comparing Coro/Coro/State.xs (file contents): Revision 1.195 by root, Sat Oct 6 00:35:41 2007 UTC vs. Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.195 by root, Sat Oct 6 00:35:41 2007 UTC vs.
Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC