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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC vs.
Revision 1.249 by root, Tue Sep 30 17:12:35 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
…		…
70	# ifndef IS_PADCONST	81	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	82	# define IS_PADCONST(v) 0
72	# endif	83	# endif
73	#endif	84	#endif
74		85
		86	/* 5.8.8 */
		87	#ifndef GV_NOTQUAL
		88	# define GV_NOTQUAL 0
		89	#endif
		90	#ifndef newSV
		91	# define newSV(l) NEWSV(0,l)
		92	#endif
		93
		94	/* 5.11 */
		95	#ifndef CxHASARGS
		96	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		97	#endif
		98
75	/* 5.8.7 */	99	/* 5.8.7 */
76	#ifndef SvRV_set	100	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	101	# 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	102	#endif
87		103
88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	104	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
89	# undef CORO_STACKGUARD	105	# undef CORO_STACKGUARD
90	#endif	106	#endif
…		…
132	#endif	148	#endif
133		149
134	/* helper storage struct for Coro::AIO */	150	/* helper storage struct for Coro::AIO */
135	struct io_state	151	struct io_state
136	{	152	{
		153	AV *res;
137	int errorno;	154	int errorno;
138	I32 laststype;	155	I32 laststype;
139	int laststatval;	156	int laststatval;
140	Stat_t statcache;	157	Stat_t statcache;
141	};	158	};
142		159
		160	static double (*nvtime)(); /* so why doesn't it take void? */
		161
143	static size_t coro_stacksize = CORO_STACKSIZE;	162	static size_t coro_stacksize = CORO_STACKSIZE;
144	static struct CoroAPI coroapi;	163	static struct CoroAPI coroapi;
145	static AV *main_mainstack; /* used to differentiate between $main and others */	164	static AV *main_mainstack; /* used to differentiate between $main and others */
146	static JMPENV *main_top_env;	165	static JMPENV *main_top_env;
147	static HV *coro_state_stash, *coro_stash;	166	static HV *coro_state_stash, *coro_stash;
148	static SV *coro_mortal; /* will be freed after next transfer */	167	static volatile SV *coro_mortal; /* will be freed after next transfer */
149		168
150	static GV *irsgv; /* $/ */	169	static GV *irsgv; /* $/ */
151	static GV *stdoutgv; /* *STDOUT */	170	static GV *stdoutgv; /* *STDOUT */
		171	static SV *rv_diehook;
		172	static SV *rv_warnhook;
		173	static HV *hv_sig; /* %SIG */
152		174
153	/* async_pool helper stuff */	175	/* async_pool helper stuff */
154	static SV *sv_pool_rss;	176	static SV *sv_pool_rss;
155	static SV *sv_pool_size;	177	static SV *sv_pool_size;
156	static AV *av_async_pool;	178	static AV *av_async_pool;
		179
		180	/* Coro::AnyEvent */
		181	static SV *sv_activity;
157		182
158	static struct coro_cctx *cctx_first;	183	static struct coro_cctx *cctx_first;
159	static int cctx_count, cctx_idle;	184	static int cctx_count, cctx_idle;
160		185
161	enum {	186	enum {
…		…
192	CF_READY = 0x0002, /* coroutine is ready */	217	CF_READY = 0x0002, /* coroutine is ready */
193	CF_NEW = 0x0004, /* has never been switched to */	218	CF_NEW = 0x0004, /* has never been switched to */
194	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	219	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
195	};	220	};
196		221
		222	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		223	typedef struct {
		224	SV *defsv;
		225	AV *defav;
		226	SV *errsv;
		227	SV *irsgv;
		228	#define VAR(name,type) type name;
		229	# include "state.h"
		230	#undef VAR
		231	} perl_slots;
		232
		233	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		234
197	/* this is a structure representing a perl-level coroutine */	235	/* this is a structure representing a perl-level coroutine */
198	struct coro {	236	struct coro {
199	/* the c coroutine allocated to this perl coroutine, if any */	237	/* the c coroutine allocated to this perl coroutine, if any */
200	coro_cctx *cctx;	238	coro_cctx *cctx;
201		239
		240	/* process data */
		241	AV *mainstack;
		242	perl_slots *slot; /* basically the saved sp */
		243
202	/* data associated with this coroutine (initial args) */	244	AV *args; /* data associated with this coroutine (initial args) */
203	AV *args;	245	int refcnt; /* coroutines are refcounted, yes */
204	int refcnt;
205	int flags; /* CF_ flags */	246	int flags; /* CF_ flags */
206		247	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		248
219	/* statistics */	249	/* statistics */
220	int usecount; /* number of transfers to this coro */	250	int usecount; /* number of transfers to this coro */
221		251
222	/* coro process data */	252	/* coro process data */
223	int prio;	253	int prio;
224	//SV *throw;	254	SV *throw; /* exception to be thrown */
225		255
226	/* async_pool */	256	/* async_pool */
227	SV *saved_deffh;	257	SV *saved_deffh;
228		258
229	/* linked list */	259	/* linked list */
230	struct coro *next, *prev;	260	struct coro *next, *prev;
231	HV *hv; /* the perl hash associated with this coro, if any */
232	};	261	};
233		262
234	typedef struct coro *Coro__State;	263	typedef struct coro *Coro__State;
235	typedef struct coro *Coro__State_or_hashref;	264	typedef struct coro *Coro__State_or_hashref;
236		265
…		…
243	#define PRIO_IDLE -3	272	#define PRIO_IDLE -3
244	#define PRIO_MIN -4	273	#define PRIO_MIN -4
245		274
246	/* for Coro.pm */	275	/* for Coro.pm */
247	static SV *coro_current;	276	static SV *coro_current;
		277	static SV *coro_readyhook;
248	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	278	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
249	static int coro_nready;	279	static int coro_nready;
250	static struct coro *coro_first;	280	static struct coro *coro_first;
251		281
252	/** lowlevel stuff **********************************************************/	282	/** lowlevel stuff **********************************************************/
253		283
		284	static SV *
		285	coro_get_sv (pTHX_ const char *name, int create)
		286	{
		287	#if PERL_VERSION_ATLEAST (5,10,0)
		288	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		289	get_sv (name, create);
		290	#endif
		291	return get_sv (name, create);
		292	}
		293
		294	static AV *
		295	coro_get_av (pTHX_ const char *name, int create)
		296	{
		297	#if PERL_VERSION_ATLEAST (5,10,0)
		298	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		299	get_av (name, create);
		300	#endif
		301	return get_av (name, create);
		302	}
		303
		304	static HV *
		305	coro_get_hv (pTHX_ const char *name, int create)
		306	{
		307	#if PERL_VERSION_ATLEAST (5,10,0)
		308	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		309	get_hv (name, create);
		310	#endif
		311	return get_hv (name, create);
		312	}
		313
254	static AV *	314	static AV *
255	coro_clone_padlist (pTHX_ CV *cv)	315	coro_clone_padlist (pTHX_ CV *cv)
256	{	316	{
257	AV *padlist = CvPADLIST (cv);	317	AV *padlist = CvPADLIST (cv);
258	AV *newpadlist, *newpad;	318	AV *newpadlist, *newpad;
259		319
260	newpadlist = newAV ();	320	newpadlist = newAV ();
261	AvREAL_off (newpadlist);	321	AvREAL_off (newpadlist);
262	#if PERL_VERSION_ATLEAST (5,9,0)	322	#if PERL_VERSION_ATLEAST (5,10,0)
263	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	323	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
264	#else	324	#else
265	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	325	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
266	#endif	326	#endif
267	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	327	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
268	--AvFILLp (padlist);	328	--AvFILLp (padlist);
269		329
270	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	330	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
271	av_store (newpadlist, 1, (SV *)newpad);	331	av_store (newpadlist, 1, (SV *)newpad);
272		332
273	return newpadlist;	333	return newpadlist;
274	}	334	}
275		335
…		…
305		365
306	/* casting is fun. */	366	/* casting is fun. */
307	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	367	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
308	free_padlist (aTHX_ padlist);	368	free_padlist (aTHX_ padlist);
309		369
310	SvREFCNT_dec (av);	370	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
311		371
312	return 0;	372	return 0;
313	}	373	}
314		374
315	#define PERL_MAGIC_coro PERL_MAGIC_ext	375	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		376	#define CORO_MAGIC_type_state PERL_MAGIC_ext
316		377
317	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	378	static MGVTBL coro_cv_vtbl = {
		379	0, 0, 0, 0,
		380	coro_cv_free
		381	};
318		382
319	#define CORO_MAGIC(cv) \	383	#define CORO_MAGIC(sv,type) \
320	SvMAGIC (cv) \	384	SvMAGIC (sv) \
321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	385	? SvMAGIC (sv)->mg_type == type \
322	? SvMAGIC (cv) \	386	? SvMAGIC (sv) \
323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	387	: mg_find (sv, type) \
324	: 0	388	: 0
		389
		390	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		391	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
325		392
326	static struct coro *	393	static struct coro *
327	SvSTATE_ (pTHX_ SV *coro)	394	SvSTATE_ (pTHX_ SV *coro)
328	{	395	{
329	HV *stash;	396	HV *stash;
…		…
341	/* very slow, but rare, check */	408	/* very slow, but rare, check */
342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	409	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343	croak ("Coro::State object required");	410	croak ("Coro::State object required");
344	}	411	}
345		412
346	mg = CORO_MAGIC (coro);	413	mg = CORO_MAGIC_state (coro);
347	return (struct coro *)mg->mg_ptr;	414	return (struct coro *)mg->mg_ptr;
348	}	415	}
349		416
350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	417	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351		418
352	/* the next two functions merely cache the padlists */	419	/* the next two functions merely cache the padlists */
353	static void	420	static void
354	get_padlist (pTHX_ CV *cv)	421	get_padlist (pTHX_ CV *cv)
355	{	422	{
356	MAGIC *mg = CORO_MAGIC (cv);	423	MAGIC *mg = CORO_MAGIC_cv (cv);
357	AV *av;	424	AV *av;
358		425
359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	426	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	427	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
361	else	428	else
362	{	429	{
363	#if CORO_PREFER_PERL_FUNCTIONS	430	#if CORO_PREFER_PERL_FUNCTIONS
364	/* this is probably cleaner, but also slower? */	431	/* this is probably cleaner? but also slower! */
		432	/* in practise, it seems to be less stable */
365	CV *cp = Perl_cv_clone (cv);	433	CV *cp = Perl_cv_clone (cv);
366	CvPADLIST (cv) = CvPADLIST (cp);	434	CvPADLIST (cv) = CvPADLIST (cp);
367	CvPADLIST (cp) = 0;	435	CvPADLIST (cp) = 0;
368	SvREFCNT_dec (cp);	436	SvREFCNT_dec (cp);
369	#else	437	#else
…		…
373	}	441	}
374		442
375	static void	443	static void
376	put_padlist (pTHX_ CV *cv)	444	put_padlist (pTHX_ CV *cv)
377	{	445	{
378	MAGIC *mg = CORO_MAGIC (cv);	446	MAGIC *mg = CORO_MAGIC_cv (cv);
379	AV *av;	447	AV *av;
380		448
381	if (expect_false (!mg))	449	if (expect_false (!mg))
382	{	450	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		451
389	av = (AV *)mg->mg_obj;	452	av = (AV *)mg->mg_obj;
390		453
391	if (expect_false (AvFILLp (av) >= AvMAX (av)))	454	if (expect_false (AvFILLp (av) >= AvMAX (av)))
392	av_extend (av, AvMAX (av) + 1);	455	av_extend (av, AvMAX (av) + 1);
…		…
397	/** load & save, init *******************************************************/	460	/** load & save, init *******************************************************/
398		461
399	static void	462	static void
400	load_perl (pTHX_ Coro__State c)	463	load_perl (pTHX_ Coro__State c)
401	{	464	{
		465	perl_slots *slot = c->slot;
		466	c->slot = 0;
		467
		468	PL_mainstack = c->mainstack;
		469
		470	GvSV (PL_defgv) = slot->defsv;
		471	GvAV (PL_defgv) = slot->defav;
		472	GvSV (PL_errgv) = slot->errsv;
		473	GvSV (irsgv) = slot->irsgv;
		474
402	#define VAR(name,type) PL_ ## name = c->name;	475	#define VAR(name,type) PL_ ## name = slot->name;
403	# include "state.h"	476	# include "state.h"
404	#undef VAR	477	#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		478
411	{	479	{
412	dSP;	480	dSP;
		481
413	CV *cv;	482	CV *cv;
414		483
415	/* now do the ugly restore mess */	484	/* now do the ugly restore mess */
416	while (expect_true (cv = (CV *)POPs))	485	while (expect_true (cv = (CV *)POPs))
417	{	486	{
…		…
452		521
453	if (expect_true (CvDEPTH (cv)))	522	if (expect_true (CvDEPTH (cv)))
454	{	523	{
455	EXTEND (SP, 3);	524	EXTEND (SP, 3);
456	PUSHs ((SV *)CvPADLIST (cv));	525	PUSHs ((SV *)CvPADLIST (cv));
457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	526	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
458	PUSHs ((SV *)cv);	527	PUSHs ((SV *)cv);
459		528
460	CvDEPTH (cv) = 0;	529	CvDEPTH (cv) = 0;
461	get_padlist (aTHX_ cv);	530	get_padlist (aTHX_ cv);
462	}	531	}
…		…
472	}	541	}
473		542
474	PUTBACK;	543	PUTBACK;
475	}	544	}
476		545
		546	/* allocate some space on the context stack for our purposes */
		547	/* we manually unroll here, as usually 2 slots is enough */
		548	if (SLOT_COUNT >= 1) CXINC;
		549	if (SLOT_COUNT >= 2) CXINC;
		550	if (SLOT_COUNT >= 3) CXINC;
		551	{
		552	int i;
		553	for (i = 3; i < SLOT_COUNT; ++i)
		554	CXINC;
		555	}
		556	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		557
		558	c->mainstack = PL_mainstack;
		559
		560	{
		561	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
		562
477	c->defav = GvAV (PL_defgv);	563	slot->defav = GvAV (PL_defgv);
478	c->defsv = DEFSV;	564	slot->defsv = DEFSV;
479	c->errsv = ERRSV;	565	slot->errsv = ERRSV;
480	c->irssv_sv = GvSV (irsgv);	566	slot->irsgv = GvSV (irsgv);
481		567
482	#define VAR(name,type)c->name = PL_ ## name;	568	#define VAR(name,type) slot->name = PL_ ## name;
483	# include "state.h"	569	# include "state.h"
484	#undef VAR	570	#undef VAR
		571	}
485	}	572	}
486		573
487	/*	574	/*
488	* allocate various perl stacks. This is an exact copy	575	* allocate various perl stacks. This is an exact copy
489	* of perl.c:init_stacks, except that it uses less memory	576	* of perl.c:init_stacks, except that it uses less memory
…		…
494	# define coro_init_stacks init_stacks	581	# define coro_init_stacks init_stacks
495	#else	582	#else
496	static void	583	static void
497	coro_init_stacks (pTHX)	584	coro_init_stacks (pTHX)
498	{	585	{
499	PL_curstackinfo = new_stackinfo(64, 6);	586	PL_curstackinfo = new_stackinfo(32, 8);
500	PL_curstackinfo->si_type = PERLSI_MAIN;	587	PL_curstackinfo->si_type = PERLSI_MAIN;
501	PL_curstack = PL_curstackinfo->si_stack;	588	PL_curstack = PL_curstackinfo->si_stack;
502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	589	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
503		590
504	PL_stack_base = AvARRAY(PL_curstack);	591	PL_stack_base = AvARRAY(PL_curstack);
505	PL_stack_sp = PL_stack_base;	592	PL_stack_sp = PL_stack_base;
506	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	593	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
507		594
508	New(50,PL_tmps_stack,64,SV*);	595	New(50,PL_tmps_stack,32,SV*);
509	PL_tmps_floor = -1;	596	PL_tmps_floor = -1;
510	PL_tmps_ix = -1;	597	PL_tmps_ix = -1;
511	PL_tmps_max = 64;	598	PL_tmps_max = 32;
512		599
513	New(54,PL_markstack,16,I32);	600	New(54,PL_markstack,16,I32);
514	PL_markstack_ptr = PL_markstack;	601	PL_markstack_ptr = PL_markstack;
515	PL_markstack_max = PL_markstack + 16;	602	PL_markstack_max = PL_markstack + 16;
516		603
517	#ifdef SET_MARK_OFFSET	604	#ifdef SET_MARK_OFFSET
518	SET_MARK_OFFSET;	605	SET_MARK_OFFSET;
519	#endif	606	#endif
520		607
521	New(54,PL_scopestack,16,I32);	608	New(54,PL_scopestack,8,I32);
522	PL_scopestack_ix = 0;	609	PL_scopestack_ix = 0;
523	PL_scopestack_max = 16;	610	PL_scopestack_max = 8;
524		611
525	New(54,PL_savestack,64,ANY);	612	New(54,PL_savestack,24,ANY);
526	PL_savestack_ix = 0;	613	PL_savestack_ix = 0;
527	PL_savestack_max = 64;	614	PL_savestack_max = 24;
528		615
529	#if !PERL_VERSION_ATLEAST (5,9,0)	616	#if !PERL_VERSION_ATLEAST (5,10,0)
530	New(54,PL_retstack,4,OP*);	617	New(54,PL_retstack,4,OP*);
531	PL_retstack_ix = 0;	618	PL_retstack_ix = 0;
532	PL_retstack_max = 4;	619	PL_retstack_max = 4;
533	#endif	620	#endif
534	}	621	}
…		…
557		644
558	Safefree (PL_tmps_stack);	645	Safefree (PL_tmps_stack);
559	Safefree (PL_markstack);	646	Safefree (PL_markstack);
560	Safefree (PL_scopestack);	647	Safefree (PL_scopestack);
561	Safefree (PL_savestack);	648	Safefree (PL_savestack);
562	#if !PERL_VERSION_ATLEAST (5,9,0)	649	#if !PERL_VERSION_ATLEAST (5,10,0)
563	Safefree (PL_retstack);	650	Safefree (PL_retstack);
564	#endif	651	#endif
565	}	652	}
566		653
567	static size_t	654	static size_t
…		…
569	{	656	{
570	size_t rss = sizeof (*coro);	657	size_t rss = sizeof (*coro);
571		658
572	if (coro->mainstack)	659	if (coro->mainstack)
573	{	660	{
		661	perl_slots tmp_slot;
		662	perl_slots *slot;
		663
574	if (coro->flags & CF_RUNNING)	664	if (coro->flags & CF_RUNNING)
575	{	665	{
		666	slot = &tmp_slot;
		667
576	#define VAR(name,type)coro->name = PL_ ## name;	668	#define VAR(name,type) slot->name = PL_ ## name;
577	# include "state.h"	669	# include "state.h"
578	#undef VAR	670	#undef VAR
579	}	671	}
		672	else
		673	slot = coro->slot;
580		674
		675	if (slot)
		676	{
581	rss += sizeof (coro->curstackinfo);	677	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);	678	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	679	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
585	rss += coro->tmps_max * sizeof (SV *);	680	rss += slot->tmps_max * sizeof (SV *);
586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	681	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
587	rss += coro->scopestack_max * sizeof (I32);	682	rss += slot->scopestack_max * sizeof (I32);
588	rss += coro->savestack_max * sizeof (ANY);	683	rss += slot->savestack_max * sizeof (ANY);
589		684
590	#if !PERL_VERSION_ATLEAST (5,9,0)	685	#if !PERL_VERSION_ATLEAST (5,10,0)
591	rss += coro->retstack_max * sizeof (OP *);	686	rss += slot->retstack_max * sizeof (OP *);
592	#endif	687	#endif
		688	}
593	}	689	}
594		690
595	return rss;	691	return rss;
596	}	692	}
597		693
598	/** coroutine stack handling ************************************************/	694	/** coroutine stack handling ************************************************/
		695
		696	static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
		697	static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
		698	static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
		699
		700	/* apparently < 5.8.8 */
		701	#ifndef MgPV_nolen_const
		702	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		703	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		704	(const char*)(mg)->mg_ptr)
		705	#endif
		706
		707	/*
		708	* This overrides the default magic get method of %SIG elements.
		709	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		710	* and instead of tryign to save and restore the hash elements, we just provide
		711	* readback here.
		712	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		713	* not expecting this to actually change the hook. This is a potential problem
		714	* when a schedule happens then, but we ignore this.
		715	*/
		716	static int
		717	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
		718	{
		719	const char *s = MgPV_nolen_const (mg);
		720
		721	if (*s == '_')
		722	{
		723	SV **svp = 0;
		724
		725	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		726	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		727
		728	if (svp)
		729	{
		730	sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
		731	return 0;
		732	}
		733	}
		734
		735	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		736	}
		737
		738	static int
		739	coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
		740	{
		741	const char *s = MgPV_nolen_const (mg);
		742
		743	if (*s == '_')
		744	{
		745	SV **svp = 0;
		746
		747	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		748	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		749
		750	if (svp)
		751	{
		752	SV *old = *svp;
		753	*svp = 0;
		754	SvREFCNT_dec (old);
		755	return 0;
		756	}
		757	}
		758
		759	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		760	}
		761
		762	static int
		763	coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
		764	{
		765	const char *s = MgPV_nolen_const (mg);
		766
		767	if (*s == '_')
		768	{
		769	SV **svp = 0;
		770
		771	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		772	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		773
		774	if (svp)
		775	{
		776	SV *old = *svp;
		777	*svp = newSVsv (sv);
		778	SvREFCNT_dec (old);
		779	return 0;
		780	}
		781	}
		782
		783	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		784	}
599		785
600	static void	786	static void
601	coro_setup (pTHX_ struct coro *coro)	787	coro_setup (pTHX_ struct coro *coro)
602	{	788	{
603	/*	789	/*
…		…
608	PL_runops = RUNOPS_DEFAULT;	794	PL_runops = RUNOPS_DEFAULT;
609	PL_curcop = &PL_compiling;	795	PL_curcop = &PL_compiling;
610	PL_in_eval = EVAL_NULL;	796	PL_in_eval = EVAL_NULL;
611	PL_comppad = 0;	797	PL_comppad = 0;
612	PL_curpm = 0;	798	PL_curpm = 0;
		799	PL_curpad = 0;
613	PL_localizing = 0;	800	PL_localizing = 0;
614	PL_dirty = 0;	801	PL_dirty = 0;
615	PL_restartop = 0;	802	PL_restartop = 0;
		803	#if PERL_VERSION_ATLEAST (5,10,0)
		804	PL_parser = 0;
		805	#endif
		806
		807	/* recreate the die/warn hooks */
		808	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		809	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
616		810
617	GvSV (PL_defgv) = newSV (0);	811	GvSV (PL_defgv) = newSV (0);
618	GvAV (PL_defgv) = coro->args; coro->args = 0;	812	GvAV (PL_defgv) = coro->args; coro->args = 0;
619	GvSV (PL_errgv) = newSV (0);	813	GvSV (PL_errgv) = newSV (0);
620	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	814	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
621	PL_rs = newSVsv (GvSV (irsgv));	815	PL_rs = newSVsv (GvSV (irsgv));
622	PL_defoutgv = SvREFCNT_inc (stdoutgv);	816	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
623
624	ENTER; /* necessary e.g. for dounwind */
625		817
626	{	818	{
627	dSP;	819	dSP;
628	LOGOP myop;	820	LOGOP myop;
629		821
…		…
636	PUTBACK;	828	PUTBACK;
637	PL_op = (OP *)&myop;	829	PL_op = (OP *)&myop;
638	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	830	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
639	SPAGAIN;	831	SPAGAIN;
640	}	832	}
		833
		834	/* this newly created coroutine might be run on an existing cctx which most
		835	* likely was suspended in set_stacklevel, called from entersub.
		836	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		837	* so we ENTER here for symmetry
		838	*/
		839	ENTER;
641	}	840	}
642		841
643	static void	842	static void
644	coro_destroy (pTHX_ struct coro *coro)	843	coro_destroy (pTHX_ struct coro *coro)
645	{	844	{
…		…
665	SvREFCNT_dec (GvSV (PL_errgv));	864	SvREFCNT_dec (GvSV (PL_errgv));
666	SvREFCNT_dec (PL_defoutgv);	865	SvREFCNT_dec (PL_defoutgv);
667	SvREFCNT_dec (PL_rs);	866	SvREFCNT_dec (PL_rs);
668	SvREFCNT_dec (GvSV (irsgv));	867	SvREFCNT_dec (GvSV (irsgv));
669		868
		869	SvREFCNT_dec (PL_diehook);
		870	SvREFCNT_dec (PL_warnhook);
		871
670	SvREFCNT_dec (coro->saved_deffh);	872	SvREFCNT_dec (coro->saved_deffh);
671	//SvREFCNT_dec (coro->throw);	873	SvREFCNT_dec (coro->throw);
672		874
673	coro_destroy_stacks (aTHX);	875	coro_destroy_stacks (aTHX);
674	}	876	}
675		877
676	static void	878	static void
…		…
715	: cx->blk_gimme == G_SCALAR ? bot + 1	917	: cx->blk_gimme == G_SCALAR ? bot + 1
716	: bot;	918	: bot;
717		919
718	av_extend (av, top - bot);	920	av_extend (av, top - bot);
719	while (bot < top)	921	while (bot < top)
720	av_push (av, SvREFCNT_inc (*bot++));	922	av_push (av, SvREFCNT_inc_NN (*bot++));
721		923
722	PL_runops = RUNOPS_DEFAULT;	924	PL_runops = RUNOPS_DEFAULT;
723	ENTER;	925	ENTER;
724	SAVETMPS;	926	SAVETMPS;
725	EXTEND (SP, 3);	927	EXTEND (SP, 3);
…		…
763	SAVETMPS;	965	SAVETMPS;
764	EXTEND (SP, 3);	966	EXTEND (SP, 3);
765	PUSHMARK (SP);	967	PUSHMARK (SP);
766	PUSHs (&PL_sv_yes);	968	PUSHs (&PL_sv_yes);
767	PUSHs (fullname);	969	PUSHs (fullname);
768	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	970	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
769	PUTBACK;	971	PUTBACK;
770	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	972	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
771	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	973	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
772	SPAGAIN;	974	SPAGAIN;
773	FREETMPS;	975	FREETMPS;
…		…
809		1011
810	/* inject a fake call to Coro::State::_cctx_init into the execution */	1012	/* inject a fake call to Coro::State::_cctx_init into the execution */
811	/* _cctx_init should be careful, as it could be called at almost any time */	1013	/* _cctx_init should be careful, as it could be called at almost any time */
812	/* during execution of a perl program */	1014	/* during execution of a perl program */
813	static void NOINLINE	1015	static void NOINLINE
814	prepare_cctx (pTHX_ coro_cctx *cctx)	1016	cctx_prepare (pTHX_ coro_cctx *cctx)
815	{	1017	{
816	dSP;	1018	dSP;
817	LOGOP myop;	1019	LOGOP myop;
818		1020
819	PL_top_env = &PL_start_env;	1021	PL_top_env = &PL_start_env;
…		…
837		1039
838	/*	1040	/*
839	* this is a _very_ stripped down perl interpreter ;)	1041	* this is a _very_ stripped down perl interpreter ;)
840	*/	1042	*/
841	static void	1043	static void
842	coro_run (void *arg)	1044	cctx_run (void *arg)
843	{	1045	{
844	dTHX;	1046	dTHX;
845		1047
846	/* coro_run is the alternative tail of transfer(), so unlock here. */	1048	/* cctx_run is the alternative tail of transfer(), so unlock here. */
847	UNLOCK;	1049	UNLOCK;
848		1050
849	/* we now skip the entersub that lead to transfer() */	1051	/* we now skip the entersub that lead to transfer() */
850	PL_op = PL_op->op_next;	1052	PL_op = PL_op->op_next;
851		1053
852	/* inject a fake subroutine call to cctx_init */	1054	/* inject a fake subroutine call to cctx_init */
853	prepare_cctx (aTHX_ (coro_cctx *)arg);	1055	cctx_prepare (aTHX_ (coro_cctx *)arg);
854		1056
855	/* somebody or something will hit me for both perl_run and PL_restartop */	1057	/* somebody or something will hit me for both perl_run and PL_restartop */
856	PL_restartop = PL_op;	1058	PL_restartop = PL_op;
857	perl_run (PL_curinterp);	1059	perl_run (PL_curinterp);
858		1060
…		…
877	++cctx_count;	1079	++cctx_count;
878		1080
879	Newz (0, cctx, 1, coro_cctx);	1081	Newz (0, cctx, 1, coro_cctx);
880		1082
881	#if HAVE_MMAP	1083	#if HAVE_MMAP
882
883	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1084	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
884	/* mmap supposedly does allocate-on-write for us */	1085	/* mmap supposedly does allocate-on-write for us */
885	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);	1086	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
886		1087
887	if (cctx->sptr != (void *)-1)	1088	if (cctx->sptr != (void *)-1)
…		…
908	stack_start = cctx->sptr;	1109	stack_start = cctx->sptr;
909	stack_size = cctx->ssize;	1110	stack_size = cctx->ssize;
910	}	1111	}
911		1112
912	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);	1113	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
913	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1114	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
914		1115
915	return cctx;	1116	return cctx;
916	}	1117	}
917		1118
918	static void	1119	static void
…		…
990	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1191	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
991		1192
992	if (expect_false (next->flags & CF_DESTROYED))	1193	if (expect_false (next->flags & CF_DESTROYED))
993	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1194	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
994		1195
		1196	#if !PERL_VERSION_ATLEAST (5,10,0)
995	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1197	if (expect_false (PL_lex_state != LEX_NOTPARSING))
996	croak ("Coro::State::transfer called while parsing, but this is not supported");	1198	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1199	#endif
997	}	1200	}
998	}	1201	}
999		1202
1000	/* always use the TRANSFER macro */	1203	/* always use the TRANSFER macro */
1001	static void NOINLINE	1204	static void NOINLINE
1002	transfer (pTHX_ struct coro *prev, struct coro *next)	1205	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1003	{	1206	{
1004	dSTACKLEVEL;	1207	dSTACKLEVEL;
		1208	static volatile int has_throw;
1005		1209
1006	/* sometimes transfer is only called to set idle_sp */	1210	/* sometimes transfer is only called to set idle_sp */
1007	if (expect_false (!next))	1211	if (expect_false (!next))
1008	{	1212	{
1009	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1213	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1024	prev->flags &= ~CF_RUNNING;	1228	prev->flags &= ~CF_RUNNING;
1025	next->flags |= CF_RUNNING;	1229	next->flags |= CF_RUNNING;
1026		1230
1027	LOCK;	1231	LOCK;
1028		1232
		1233	/* first get rid of the old state */
		1234	save_perl (aTHX_ prev);
		1235
1029	if (expect_false (next->flags & CF_NEW))	1236	if (expect_false (next->flags & CF_NEW))
1030	{	1237	{
1031	/* need to start coroutine */	1238	/* need to start coroutine */
1032	next->flags &= ~CF_NEW;	1239	next->flags &= ~CF_NEW;
1033	/* first get rid of the old state */
1034	save_perl (aTHX_ prev);
1035	/* setup coroutine call */	1240	/* setup coroutine call */
1036	coro_setup (aTHX_ next);	1241	coro_setup (aTHX_ next);
1037	}	1242	}
1038	else	1243	else
1039	{
1040	/* coroutine already started */
1041	save_perl (aTHX_ prev);
1042	load_perl (aTHX_ next);	1244	load_perl (aTHX_ next);
1043	}
1044		1245
1045	prev__cctx = prev->cctx;	1246	prev__cctx = prev->cctx;
1046		1247
1047	/* possibly "free" the cctx */	1248	/* possibly "free" the cctx */
1048	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1249	if (expect_true (
		1250	prev__cctx->idle_sp == STACKLEVEL
		1251	&& !(prev__cctx->flags & CC_TRACE)
		1252	&& !force_cctx
		1253	))
1049	{	1254	{
1050	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1255	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1051	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1256	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1052		1257
1053	prev->cctx = 0;	1258	prev->cctx = 0;
1054		1259
1055	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1260	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1056	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1261	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1057	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1262	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1263	if (!next->cctx)
1058	next->cctx = cctx_get (aTHX);	1264	next->cctx = cctx_get (aTHX);
1059		1265
1060	cctx_put (prev__cctx);	1266	cctx_put (prev__cctx);
1061	}	1267	}
1062		1268
1063	++next->usecount;	1269	++next->usecount;
1064		1270
1065	if (expect_true (!next->cctx))	1271	if (expect_true (!next->cctx))
1066	next->cctx = cctx_get (aTHX);	1272	next->cctx = cctx_get (aTHX);
		1273
		1274	has_throw = !!next->throw;
1067		1275
1068	if (expect_false (prev__cctx != next->cctx))	1276	if (expect_false (prev__cctx != next->cctx))
1069	{	1277	{
1070	prev__cctx->top_env = PL_top_env;	1278	prev__cctx->top_env = PL_top_env;
1071	PL_top_env = next->cctx->top_env;	1279	PL_top_env = next->cctx->top_env;
1072	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1280	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1073	}	1281	}
1074		1282
1075	free_coro_mortal (aTHX);	1283	free_coro_mortal (aTHX);
1076	UNLOCK;	1284	UNLOCK;
		1285
		1286	if (expect_false (has_throw))
		1287	{
		1288	struct coro *coro = SvSTATE (coro_current);
		1289
		1290	if (coro->throw)
		1291	{
		1292	SV *exception = coro->throw;
		1293	coro->throw = 0;
		1294	sv_setsv (ERRSV, exception);
		1295	croak (0);
		1296	}
		1297	}
1077	}	1298	}
1078	}	1299	}
1079		1300
1080	struct transfer_args	1301	struct transfer_args
1081	{	1302	{
1082	struct coro *prev, *next;	1303	struct coro *prev, *next;
1083	};	1304	};
1084		1305
1085	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1306	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1086	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1307	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1087		1308
1088	/** high level stuff ********************************************************/	1309	/** high level stuff ********************************************************/
1089		1310
1090	static int	1311	static int
…		…
1116	save_perl (aTHX_ &temp);	1337	save_perl (aTHX_ &temp);
1117	load_perl (aTHX_ coro);	1338	load_perl (aTHX_ coro);
1118		1339
1119	coro_destroy (aTHX_ coro);	1340	coro_destroy (aTHX_ coro);
1120		1341
1121	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1342	load_perl (aTHX_ &temp);
1122		1343
1123	coro->mainstack = 0;	1344	coro->slot = 0;
1124	}	1345	}
1125		1346
1126	cctx_destroy (coro->cctx);	1347	cctx_destroy (coro->cctx);
1127	SvREFCNT_dec (coro->args);	1348	SvREFCNT_dec (coro->args);
1128		1349
…		…
1184	{	1405	{
1185	dTHX;	1406	dTHX;
1186	struct transfer_args ta;	1407	struct transfer_args ta;
1187		1408
1188	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1409	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1189	TRANSFER (ta);	1410	TRANSFER (ta, 1);
1190	}	1411	}
1191		1412
1192	/** Coro ********************************************************************/	1413	/** Coro ********************************************************************/
1193		1414
1194	static void	1415	static void
…		…
1196	{	1417	{
1197	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1418	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1198	}	1419	}
1199		1420
1200	static SV *	1421	static SV *
1201	coro_deq (pTHX_ int min_prio)	1422	coro_deq (pTHX)
1202	{	1423	{
1203	int prio = PRIO_MAX - PRIO_MIN;	1424	int prio;
1204		1425
1205	min_prio -= PRIO_MIN;
1206	if (min_prio < 0)
1207	min_prio = 0;
1208
1209	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1426	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1210	if (AvFILLp (coro_ready [prio]) >= 0)	1427	if (AvFILLp (coro_ready [prio]) >= 0)
1211	return av_shift (coro_ready [prio]);	1428	return av_shift (coro_ready [prio]);
1212		1429
1213	return 0;	1430	return 0;
1214	}	1431	}
…		…
1216	static int	1433	static int
1217	api_ready (SV *coro_sv)	1434	api_ready (SV *coro_sv)
1218	{	1435	{
1219	dTHX;	1436	dTHX;
1220	struct coro *coro;	1437	struct coro *coro;
		1438	SV *sv_hook;
		1439	void (*xs_hook)(void);
1221		1440
1222	if (SvROK (coro_sv))	1441	if (SvROK (coro_sv))
1223	coro_sv = SvRV (coro_sv);	1442	coro_sv = SvRV (coro_sv);
1224		1443
1225	coro = SvSTATE (coro_sv);	1444	coro = SvSTATE (coro_sv);
…		…
1228	return 0;	1447	return 0;
1229		1448
1230	coro->flags |= CF_READY;	1449	coro->flags |= CF_READY;
1231		1450
1232	LOCK;	1451	LOCK;
		1452
		1453	sv_hook = coro_nready ? 0 : coro_readyhook;
		1454	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1455
1233	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1456	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1234	++coro_nready;	1457	++coro_nready;
		1458
1235	UNLOCK;	1459	UNLOCK;
		1460
		1461	if (sv_hook)
		1462	{
		1463	dSP;
		1464
		1465	ENTER;
		1466	SAVETMPS;
		1467
		1468	PUSHMARK (SP);
		1469	PUTBACK;
		1470	call_sv (sv_hook, G_DISCARD);
		1471	SPAGAIN;
		1472
		1473	FREETMPS;
		1474	LEAVE;
		1475	}
		1476
		1477	if (xs_hook)
		1478	xs_hook ();
1236		1479
1237	return 1;	1480	return 1;
1238	}	1481	}
1239		1482
1240	static int	1483	static int
…		…
1250	SV *prev_sv, *next_sv;	1493	SV *prev_sv, *next_sv;
1251		1494
1252	for (;;)	1495	for (;;)
1253	{	1496	{
1254	LOCK;	1497	LOCK;
1255	next_sv = coro_deq (aTHX_ PRIO_MIN);	1498	next_sv = coro_deq (aTHX);
1256		1499
1257	/* nothing to schedule: call the idle handler */	1500	/* nothing to schedule: call the idle handler */
1258	if (expect_false (!next_sv))	1501	if (expect_false (!next_sv))
1259	{	1502	{
1260	dSP;	1503	dSP;
…		…
1264	SAVETMPS;	1507	SAVETMPS;
1265		1508
1266	PUSHMARK (SP);	1509	PUSHMARK (SP);
1267	PUTBACK;	1510	PUTBACK;
1268	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1511	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1512	SPAGAIN;
1269		1513
1270	FREETMPS;	1514	FREETMPS;
1271	LEAVE;	1515	LEAVE;
1272	continue;	1516	continue;
1273	}	1517	}
…		…
1328	{	1572	{
1329	dTHX;	1573	dTHX;
1330	struct transfer_args ta;	1574	struct transfer_args ta;
1331		1575
1332	prepare_schedule (aTHX_ &ta);	1576	prepare_schedule (aTHX_ &ta);
1333	TRANSFER (ta);	1577	TRANSFER (ta, 1);
1334	}	1578	}
1335		1579
1336	static int	1580	static int
1337	api_cede (void)	1581	api_cede (void)
1338	{	1582	{
…		…
1341		1585
1342	prepare_cede (aTHX_ &ta);	1586	prepare_cede (aTHX_ &ta);
1343		1587
1344	if (expect_true (ta.prev != ta.next))	1588	if (expect_true (ta.prev != ta.next))
1345	{	1589	{
1346	TRANSFER (ta);	1590	TRANSFER (ta, 1);
1347	return 1;	1591	return 1;
1348	}	1592	}
1349	else	1593	else
1350	return 0;	1594	return 0;
1351	}	1595	}
…		…
1356	dTHX;	1600	dTHX;
1357	struct transfer_args ta;	1601	struct transfer_args ta;
1358		1602
1359	if (prepare_cede_notself (aTHX_ &ta))	1603	if (prepare_cede_notself (aTHX_ &ta))
1360	{	1604	{
1361	TRANSFER (ta);	1605	TRANSFER (ta, 1);
1362	return 1;	1606	return 1;
1363	}	1607	}
1364	else	1608	else
1365	return 0;	1609	return 0;
1366	}	1610	}
…		…
1385	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);	1629	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1386		1630
1387	if (coro->flags & CF_RUNNING)	1631	if (coro->flags & CF_RUNNING)
1388	PL_runops = RUNOPS_DEFAULT;	1632	PL_runops = RUNOPS_DEFAULT;
1389	else	1633	else
1390	coro->runops = RUNOPS_DEFAULT;	1634	coro->slot->runops = RUNOPS_DEFAULT;
		1635	}
		1636	}
		1637
		1638	static int
		1639	coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
		1640	{
		1641	AV *padlist;
		1642	AV *av = (AV *)mg->mg_obj;
		1643
		1644	abort ();
		1645
		1646	return 0;
		1647	}
		1648
		1649	static MGVTBL coro_gensub_vtbl = {
		1650	0, 0, 0, 0,
		1651	coro_gensub_free
		1652	};
		1653
		1654	/*****************************************************************************/
		1655	/* PerlIO::cede */
		1656
		1657	typedef struct
		1658	{
		1659	PerlIOBuf base;
		1660	NV next, every;
		1661	} PerlIOCede;
		1662
		1663	static IV
		1664	PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
		1665	{
		1666	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1667
		1668	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1669	self->next = nvtime () + self->every;
		1670
		1671	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1672	}
		1673
		1674	static SV *
		1675	PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
		1676	{
		1677	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1678
		1679	return newSVnv (self->every);
		1680	}
		1681
		1682	static IV
		1683	PerlIOCede_flush (pTHX_ PerlIO *f)
		1684	{
		1685	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1686	double now = nvtime ();
		1687
		1688	if (now >= self->next)
1391	}	1689	{
		1690	api_cede ();
		1691	self->next = now + self->every;
		1692	}
		1693
		1694	return PerlIOBuf_flush (aTHX_ f);
1392	}	1695	}
		1696
		1697	static PerlIO_funcs PerlIO_cede =
		1698	{
		1699	sizeof(PerlIO_funcs),
		1700	"cede",
		1701	sizeof(PerlIOCede),
		1702	PERLIO_K_DESTRUCT | PERLIO_K_RAW,
		1703	PerlIOCede_pushed,
		1704	PerlIOBuf_popped,
		1705	PerlIOBuf_open,
		1706	PerlIOBase_binmode,
		1707	PerlIOCede_getarg,
		1708	PerlIOBase_fileno,
		1709	PerlIOBuf_dup,
		1710	PerlIOBuf_read,
		1711	PerlIOBuf_unread,
		1712	PerlIOBuf_write,
		1713	PerlIOBuf_seek,
		1714	PerlIOBuf_tell,
		1715	PerlIOBuf_close,
		1716	PerlIOCede_flush,
		1717	PerlIOBuf_fill,
		1718	PerlIOBase_eof,
		1719	PerlIOBase_error,
		1720	PerlIOBase_clearerr,
		1721	PerlIOBase_setlinebuf,
		1722	PerlIOBuf_get_base,
		1723	PerlIOBuf_bufsiz,
		1724	PerlIOBuf_get_ptr,
		1725	PerlIOBuf_get_cnt,
		1726	PerlIOBuf_set_ptrcnt,
		1727	};
		1728
1393		1729
1394	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1730	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1395		1731
1396	PROTOTYPES: DISABLE	1732	PROTOTYPES: DISABLE
1397		1733
…		…
1402	#endif	1738	#endif
1403	BOOT_PAGESIZE;	1739	BOOT_PAGESIZE;
1404		1740
1405	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	1741	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1406	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	1742	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
		1743
		1744	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1745	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1746	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1747
		1748	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1749	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1750	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1407		1751
1408	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1752	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1409		1753
1410	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1754	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1411	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1755	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1416	main_top_env = PL_top_env;	1760	main_top_env = PL_top_env;
1417		1761
1418	while (main_top_env->je_prev)	1762	while (main_top_env->je_prev)
1419	main_top_env = main_top_env->je_prev;	1763	main_top_env = main_top_env->je_prev;
1420		1764
1421	coroapi.ver = CORO_API_VERSION;	1765	coroapi.ver = CORO_API_VERSION;
		1766	coroapi.rev = CORO_API_REVISION;
1422	coroapi.transfer = api_transfer;	1767	coroapi.transfer = api_transfer;
		1768
		1769	{
		1770	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1771
		1772	if (!svp) croak ("Time::HiRes is required");
		1773	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1774
		1775	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		1776	}
1423		1777
1424	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1778	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1425	}	1779	}
1426		1780
1427	SV *	1781	SV *
1428	new (char *klass, ...)	1782	new (char *klass, ...)
1429	CODE:	1783	CODE:
1430	{	1784	{
1431	struct coro *coro;	1785	struct coro *coro;
		1786	MAGIC *mg;
1432	HV *hv;	1787	HV *hv;
1433	int i;	1788	int i;
1434		1789
1435	Newz (0, coro, 1, struct coro);	1790	Newz (0, coro, 1, struct coro);
1436	coro->args = newAV ();	1791	coro->args = newAV ();
…		…
1439	if (coro_first) coro_first->prev = coro;	1794	if (coro_first) coro_first->prev = coro;
1440	coro->next = coro_first;	1795	coro->next = coro_first;
1441	coro_first = coro;	1796	coro_first = coro;
1442		1797
1443	coro->hv = hv = newHV ();	1798	coro->hv = hv = newHV ();
1444	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1799	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		1800	mg->mg_flags |= MGf_DUP;
1445	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1801	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1446		1802
1447	av_extend (coro->args, items - 1);	1803	av_extend (coro->args, items - 1);
1448	for (i = 1; i < items; i++)	1804	for (i = 1; i < items; i++)
1449	av_push (coro->args, newSVsv (ST (i)));	1805	av_push (coro->args, newSVsv (ST (i)));
…		…
1463	Coro::cede_notself = 4	1819	Coro::cede_notself = 4
1464	CODE:	1820	CODE:
1465	{	1821	{
1466	struct transfer_args ta;	1822	struct transfer_args ta;
1467		1823
		1824	PUTBACK;
1468	switch (ix)	1825	switch (ix)
1469	{	1826	{
1470	case 0:	1827	case 0:
1471	ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));	1828	ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1472	ta.next = 0;	1829	ta.next = 0;
…		…
1491	if (!prepare_cede_notself (aTHX_ &ta))	1848	if (!prepare_cede_notself (aTHX_ &ta))
1492	XSRETURN_EMPTY;	1849	XSRETURN_EMPTY;
1493		1850
1494	break;	1851	break;
1495	}	1852	}
		1853	SPAGAIN;
1496		1854
1497	BARRIER;	1855	BARRIER;
		1856	PUTBACK;
1498	TRANSFER (ta);	1857	TRANSFER (ta, 0);
1499		1858	SPAGAIN; /* might be the sp of a different coroutine now */
1500	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1859	/* be extra careful not to ever do anything after TRANSFER */
1501	XSRETURN_YES;
1502	}	1860	}
1503		1861
1504	bool	1862	bool
1505	_destroy (SV *coro_sv)	1863	_destroy (SV *coro_sv)
1506	CODE:	1864	CODE:
1507	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1865	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1508	OUTPUT:	1866	OUTPUT:
1509	RETVAL	1867	RETVAL
1510		1868
1511	void	1869	void
1512	_exit (code)	1870	_exit (int code)
1513	int code
1514	PROTOTYPE: $	1871	PROTOTYPE: $
1515	CODE:	1872	CODE:
1516	_exit (code);	1873	_exit (code);
1517		1874
1518	int	1875	int
…		…
1552	call (Coro::State coro, SV *coderef)	1909	call (Coro::State coro, SV *coderef)
1553	ALIAS:	1910	ALIAS:
1554	eval = 1	1911	eval = 1
1555	CODE:	1912	CODE:
1556	{	1913	{
1557	if (coro->mainstack)	1914	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1558	{	1915	{
1559	struct coro temp;	1916	struct coro temp;
1560	Zero (&temp, 1, struct coro);
1561		1917
1562	if (!(coro->flags & CF_RUNNING))	1918	if (!(coro->flags & CF_RUNNING))
1563	{	1919	{
		1920	PUTBACK;
1564	save_perl (aTHX_ &temp);	1921	save_perl (aTHX_ &temp);
1565	load_perl (aTHX_ coro);	1922	load_perl (aTHX_ coro);
1566	}	1923	}
1567		1924
1568	{	1925	{
1569	dSP;	1926	dSP;
1570	ENTER;	1927	ENTER;
1571	SAVETMPS;	1928	SAVETMPS;
		1929	PUTBACK;
		1930	PUSHSTACK;
1572	PUSHMARK (SP);	1931	PUSHMARK (SP);
1573	PUTBACK;	1932
1574	if (ix)	1933	if (ix)
1575	eval_sv (coderef, 0);	1934	eval_sv (coderef, 0);
1576	else	1935	else
1577	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1936	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1937
		1938	POPSTACK;
1578	SPAGAIN;	1939	SPAGAIN;
1579	FREETMPS;	1940	FREETMPS;
1580	LEAVE;	1941	LEAVE;
1581	PUTBACK;	1942	PUTBACK;
1582	}	1943	}
1583		1944
1584	if (!(coro->flags & CF_RUNNING))	1945	if (!(coro->flags & CF_RUNNING))
1585	{	1946	{
1586	save_perl (aTHX_ coro);	1947	save_perl (aTHX_ coro);
1587	load_perl (aTHX_ &temp);	1948	load_perl (aTHX_ &temp);
		1949	SPAGAIN;
1588	}	1950	}
1589	}	1951	}
1590	}	1952	}
1591		1953
1592	SV *	1954	SV *
…		…
1604		1966
1605	void	1967	void
1606	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	1968	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1607		1969
1608	SV *	1970	SV *
1609	has_stack (Coro::State coro)	1971	has_cctx (Coro::State coro)
1610	PROTOTYPE: $	1972	PROTOTYPE: $
1611	CODE:	1973	CODE:
1612	RETVAL = boolSV (!!coro->cctx);	1974	RETVAL = boolSV (!!coro->cctx);
1613	OUTPUT:	1975	OUTPUT:
1614	RETVAL	1976	RETVAL
…		…
1633	case 1: RETVAL = coro->usecount; break;	1995	case 1: RETVAL = coro->usecount; break;
1634	}	1996	}
1635	OUTPUT:	1997	OUTPUT:
1636	RETVAL	1998	RETVAL
1637		1999
		2000	void
		2001	force_cctx ()
		2002	CODE:
		2003	struct coro *coro = SvSTATE (coro_current);
		2004	coro->cctx->idle_sp = 0;
		2005
		2006	void
		2007	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2008	PROTOTYPE: $;$
		2009	CODE:
		2010	SvREFCNT_dec (self->throw);
		2011	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2012
		2013	void
		2014	swap_defsv (Coro::State self)
		2015	PROTOTYPE: $
		2016	ALIAS:
		2017	swap_defav = 1
		2018	CODE:
		2019	if (!self->slot)
		2020	croak ("cannot swap state with coroutine that has no saved state");
		2021	else
		2022	{
		2023	SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2024	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
		2025
		2026	SV *tmp = *src; *src = *dst; *dst = tmp;
		2027	}
1638		2028
1639	MODULE = Coro::State PACKAGE = Coro	2029	MODULE = Coro::State PACKAGE = Coro
1640		2030
1641	BOOT:	2031	BOOT:
1642	{	2032	{
1643	int i;	2033	int i;
1644		2034
1645	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1646	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1647	av_async_pool = get_av ("Coro::async_pool", TRUE);	2035	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2036	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2037	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1648		2038
1649	coro_current = get_sv ("Coro::current", FALSE);	2039	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1650	SvREADONLY_on (coro_current);	2040	SvREADONLY_on (coro_current);
1651		2041
1652	coro_stash = gv_stashpv ("Coro", TRUE);	2042	coro_stash = gv_stashpv ("Coro", TRUE);
1653		2043
1654	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2044	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1655	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	2045	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1656	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	2046	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1657	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	2047	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1660		2050
1661	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	2051	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1662	coro_ready[i] = newAV ();	2052	coro_ready[i] = newAV ();
1663		2053
1664	{	2054	{
1665	SV *sv = perl_get_sv("Coro::API", 1);	2055	SV *sv = perl_get_sv ("Coro::API", TRUE);
		2056	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1666		2057
1667	coroapi.schedule = api_schedule;	2058	coroapi.schedule = api_schedule;
1668	coroapi.cede = api_cede;	2059	coroapi.cede = api_cede;
1669	coroapi.cede_notself = api_cede_notself;	2060	coroapi.cede_notself = api_cede_notself;
1670	coroapi.ready = api_ready;	2061	coroapi.ready = api_ready;
…		…
1681	void	2072	void
1682	_set_current (SV *current)	2073	_set_current (SV *current)
1683	PROTOTYPE: $	2074	PROTOTYPE: $
1684	CODE:	2075	CODE:
1685	SvREFCNT_dec (SvRV (coro_current));	2076	SvREFCNT_dec (SvRV (coro_current));
1686	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2077	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2078
		2079	void
		2080	_set_readyhook (SV *hook)
		2081	PROTOTYPE: $
		2082	CODE:
		2083	LOCK;
		2084	SvREFCNT_dec (coro_readyhook);
		2085	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2086	UNLOCK;
1687		2087
1688	int	2088	int
1689	prio (Coro::State coro, int newprio = 0)	2089	prio (Coro::State coro, int newprio = 0)
1690	ALIAS:	2090	ALIAS:
1691	nice = 1	2091	nice = 1
…		…
1734	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2134	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1735	AV *invoke_av;	2135	AV *invoke_av;
1736	int i, len;	2136	int i, len;
1737		2137
1738	if (!invoke)	2138	if (!invoke)
		2139	{
		2140	SV *old = PL_diehook;
		2141	PL_diehook = 0;
		2142	SvREFCNT_dec (old);
1739	croak ("\3terminate\2\n");	2143	croak ("\3async_pool terminate\2\n");
		2144	}
1740		2145
1741	SvREFCNT_dec (coro->saved_deffh);	2146	SvREFCNT_dec (coro->saved_deffh);
1742	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2147	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1743		2148
1744	hv_store (hv, "desc", sizeof ("desc") - 1,	2149	hv_store (hv, "desc", sizeof ("desc") - 1,
1745	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2150	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1746		2151
1747	invoke_av = (AV *)SvRV (invoke);	2152	invoke_av = (AV *)SvRV (invoke);
…		…
1751		2156
1752	if (len > 0)	2157	if (len > 0)
1753	{	2158	{
1754	av_fill (defav, len - 1);	2159	av_fill (defav, len - 1);
1755	for (i = 0; i < len; ++i)	2160	for (i = 0; i < len; ++i)
1756	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2161	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1757	}	2162	}
1758		2163
1759	SvREFCNT_dec (invoke);	2164	SvREFCNT_dec (invoke);
1760	}	2165	}
1761		2166
…		…
1770	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	2175	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1771	coro->saved_deffh = 0;	2176	coro->saved_deffh = 0;
1772		2177
1773	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2178	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1774	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2179	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2180	{
		2181	SV *old = PL_diehook;
		2182	PL_diehook = 0;
		2183	SvREFCNT_dec (old);
1775	croak ("\3terminate\2\n");	2184	croak ("\3async_pool terminate\2\n");
		2185	}
1776		2186
1777	av_clear (GvAV (PL_defgv));	2187	av_clear (GvAV (PL_defgv));
1778	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2188	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1779	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2189	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1780		2190
…		…
1784	api_trace (coro_current, 0);	2194	api_trace (coro_current, 0);
1785		2195
1786	av_push (av_async_pool, newSVsv (coro_current));	2196	av_push (av_async_pool, newSVsv (coro_current));
1787	}	2197	}
1788		2198
		2199	#if 0
		2200
		2201	void
		2202	_generator_call (...)
		2203	PROTOTYPE: @
		2204	PPCODE:
		2205	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2206	xxxx
		2207	abort ();
		2208
		2209	SV *
		2210	gensub (SV *sub, ...)
		2211	PROTOTYPE: &;@
		2212	CODE:
		2213	{
		2214	struct coro *coro;
		2215	MAGIC *mg;
		2216	CV *xcv;
		2217	CV *ncv = (CV *)newSV_type (SVt_PVCV);
		2218	int i;
		2219
		2220	CvGV (ncv) = CvGV (cv);
		2221	CvFILE (ncv) = CvFILE (cv);
		2222
		2223	Newz (0, coro, 1, struct coro);
		2224	coro->args = newAV ();
		2225	coro->flags = CF_NEW;
		2226
		2227	av_extend (coro->args, items - 1);
		2228	for (i = 1; i < items; i++)
		2229	av_push (coro->args, newSVsv (ST (i)));
		2230
		2231	CvISXSUB_on (ncv);
		2232	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2233
		2234	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2235
		2236	CvXSUB (ncv) = CvXSUB (xcv);
		2237	CvANON_on (ncv);
		2238
		2239	mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
		2240	RETVAL = newRV_noinc ((SV *)ncv);
		2241	}
		2242	OUTPUT:
		2243	RETVAL
		2244
		2245	#endif
		2246
1789		2247
1790	MODULE = Coro::State PACKAGE = Coro::AIO	2248	MODULE = Coro::State PACKAGE = Coro::AIO
1791		2249
1792	SV *	2250	void
1793	_get_state ()	2251	_get_state (SV *self)
1794	CODE:	2252	PPCODE:
1795	{	2253	{
1796	struct io_state *data;	2254	AV *defav = GvAV (PL_defgv);
1797		2255	AV *av = newAV ();
		2256	int i;
1798	RETVAL = newSV (sizeof (struct io_state));	2257	SV *data_sv = newSV (sizeof (struct io_state));
1799	data = (struct io_state *)SvPVX (RETVAL);	2258	struct io_state *data = (struct io_state *)SvPVX (data_sv);
1800	SvCUR_set (RETVAL, sizeof (struct io_state));	2259	SvCUR_set (data_sv, sizeof (struct io_state));
1801	SvPOK_only (RETVAL);	2260	SvPOK_only (data_sv);
1802		2261
1803	data->errorno = errno;	2262	data->errorno = errno;
1804	data->laststype = PL_laststype;	2263	data->laststype = PL_laststype;
1805	data->laststatval = PL_laststatval;	2264	data->laststatval = PL_laststatval;
1806	data->statcache = PL_statcache;	2265	data->statcache = PL_statcache;
		2266
		2267	av_extend (av, AvFILLp (defav) + 1 + 1);
		2268
		2269	for (i = 0; i <= AvFILLp (defav); ++i)
		2270	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2271
		2272	av_push (av, data_sv);
		2273
		2274	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2275
		2276	api_ready (self);
1807	}	2277	}
1808	OUTPUT:
1809	RETVAL
1810		2278
1811	void	2279	void
1812	_set_state (char *data_)	2280	_set_state (SV *state)
1813	PROTOTYPE: $	2281	PROTOTYPE: $
1814	CODE:	2282	PPCODE:
1815	{	2283	{
1816	struct io_state *data = (void *)data_;	2284	AV *av = (AV *)SvRV (state);
		2285	struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2286	int i;
1817		2287
1818	errno = data->errorno;	2288	errno = data->errorno;
1819	PL_laststype = data->laststype;	2289	PL_laststype = data->laststype;
1820	PL_laststatval = data->laststatval;	2290	PL_laststatval = data->laststatval;
1821	PL_statcache = data->statcache;	2291	PL_statcache = data->statcache;
1822	}
1823		2292
		2293	EXTEND (SP, AvFILLp (av));
		2294	for (i = 0; i < AvFILLp (av); ++i)
		2295	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2296	}
		2297
		2298
		2299	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2300
		2301	BOOT:
		2302	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2303
		2304	SV *
		2305	_schedule (...)
		2306	PROTOTYPE: @
		2307	CODE:
		2308	{
		2309	static int incede;
		2310
		2311	api_cede_notself ();
		2312
		2313	++incede;
		2314	while (coro_nready >= incede && api_cede ())
		2315	;
		2316
		2317	sv_setsv (sv_activity, &PL_sv_undef);
		2318	if (coro_nready >= incede)
		2319	{
		2320	PUSHMARK (SP);
		2321	PUTBACK;
		2322	call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
		2323	SPAGAIN;
		2324	}
		2325
		2326	--incede;
		2327	}
		2328
		2329
		2330	MODULE = Coro::State PACKAGE = PerlIO::cede
		2331
		2332	BOOT:
		2333	PerlIO_define_layer (aTHX_ &PerlIO_cede);

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