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Comparing Coro/Coro/State.xs (file contents):
Revision 1.132 by root, Fri Dec 29 13:03:05 2006 UTC vs.
Revision 1.166 by root, Wed Sep 26 21:11:28 2007 UTC

1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
…		…
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# 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)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	81	# undef CORO_STACKGUARD
77	#endif	82	#endif
78		83
79	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
81	#endif	86	#endif
82		87
83	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	91	#endif
87		92
88	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macros try to return the current stack pointer, in an as
89	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
93		97
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		99
96	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
112	#else	116	#else
113	# define LOCK (void)0	117	# define LOCK (void)0
114	# define UNLOCK (void)0	118	# define UNLOCK (void)0
115	#endif	119	#endif
116		120
		121	/* helper storage struct for Coro::AIO */
117	struct io_state	122	struct io_state
118	{	123	{
119	int errorno;	124	int errorno;
120	I32 laststype;	125	I32 laststype;
121	int laststatval;	126	int laststatval;
122	Stat_t statcache;	127	Stat_t statcache;
123	};	128	};
124		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
125	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
126	static AV *main_mainstack; /* used to differentiate between $main and others */	132	static AV *main_mainstack; /* used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
127	static HV *coro_state_stash, *coro_stash;	134	static HV *coro_state_stash, *coro_stash;
128	static SV *coro_mortal; /* will be freed after next transfer */	135	static SV *coro_mortal; /* will be freed after next transfer */
129		136
		137	/* async_pool helper stuff */
		138	static SV *sv_pool_rss;
		139	static SV *sv_pool_size;
		140	static AV *av_async_pool;
		141
130	static struct coro_cctx *cctx_first;	142	static struct coro_cctx *cctx_first;
131	static int cctx_count, cctx_idle;	143	static int cctx_count, cctx_idle;
		144
		145	enum {
		146	CC_MAPPED = 0x01,
		147	CC_TRACE = 0x02,
		148	CC_NOREUSE = 0x04, /* throw this away after tracing */
		149	};
132		150
133	/* this is a structure representing a c-level coroutine */	151	/* this is a structure representing a c-level coroutine */
134	typedef struct coro_cctx {	152	typedef struct coro_cctx {
135	struct coro_cctx *next;	153	struct coro_cctx *next;
136		154
137	/* the stack */	155	/* the stack */
138	void *sptr;	156	void *sptr;
139	long ssize; /* positive == mmap, otherwise malloc */	157	size_t ssize;
140		158
141	/* cpu state */	159	/* cpu state */
142	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	160	void *idle_sp; /* sp of top-level transfer/schedule/cede call */
143	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */	161	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
144	JMPENV *top_env;	162	JMPENV *top_env;
145	coro_context cctx;	163	coro_context cctx;
146		164
147	int inuse;
148
149	#if USE_VALGRIND	165	#if CORO_USE_VALGRIND
150	int valgrind_id;	166	int valgrind_id;
151	#endif	167	#endif
		168	unsigned char flags;
152	} coro_cctx;	169	} coro_cctx;
153		170
154	enum {	171	enum {
155	CF_RUNNING = 0x0001, /* coroutine is running */	172	CF_RUNNING = 0x0001, /* coroutine is running */
156	CF_READY = 0x0002, /* coroutine is ready */	173	CF_READY = 0x0002, /* coroutine is ready */
157	CF_NEW = 0x0004, /* ahs never been switched to */	174	CF_NEW = 0x0004, /* has never been switched to */
		175	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
158	};	176	};
159		177
160	/* this is a structure representing a perl-level coroutine */	178	/* this is a structure representing a perl-level coroutine */
161	struct coro {	179	struct coro {
162	/* the c coroutine allocated to this perl coroutine, if any */	180	/* the c coroutine allocated to this perl coroutine, if any */
…		…
170		188
171	/* optionally saved, might be zero */	189	/* optionally saved, might be zero */
172	AV *defav; /* @_ */	190	AV *defav; /* @_ */
173	SV *defsv; /* $_ */	191	SV *defsv; /* $_ */
174	SV *errsv; /* $@ */	192	SV *errsv; /* $@ */
		193	GV *deffh; /* default filehandle */
175	SV *irssv; /* $/ */	194	SV *irssv; /* $/ */
176	SV *irssv_sv; /* real $/ cache */	195	SV *irssv_sv; /* real $/ cache */
177		196
178	#define VAR(name,type) type name;	197	#define VAR(name,type) type name;
179	# include "state.h"	198	# include "state.h"
180	#undef VAR	199	#undef VAR
181		200
182	/* coro process data */	201	/* coro process data */
183	int prio;	202	int prio;
		203
		204	/* linked list */
		205	struct coro *next, *prev;
		206	HV *hv; /* the perl hash associated with this coro, if any */
184	};	207	};
185		208
186	typedef struct coro *Coro__State;	209	typedef struct coro *Coro__State;
187	typedef struct coro *Coro__State_or_hashref;	210	typedef struct coro *Coro__State_or_hashref;
188		211
		212	/** Coro ********************************************************************/
		213
		214	#define PRIO_MAX 3
		215	#define PRIO_HIGH 1
		216	#define PRIO_NORMAL 0
		217	#define PRIO_LOW -1
		218	#define PRIO_IDLE -3
		219	#define PRIO_MIN -4
		220
		221	/* for Coro.pm */
		222	static SV *coro_current;
		223	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		224	static int coro_nready;
		225	static struct coro *coro_first;
		226
		227	/** lowlevel stuff **********************************************************/
		228
189	static AV *	229	static AV *
190	coro_clone_padlist (CV *cv)	230	coro_clone_padlist (pTHX_ CV *cv)
191	{	231	{
192	AV *padlist = CvPADLIST (cv);	232	AV *padlist = CvPADLIST (cv);
193	AV *newpadlist, *newpad;	233	AV *newpadlist, *newpad;
194		234
195	newpadlist = newAV ();	235	newpadlist = newAV ();
…		…
207		247
208	return newpadlist;	248	return newpadlist;
209	}	249	}
210		250
211	static void	251	static void
212	free_padlist (AV *padlist)	252	free_padlist (pTHX_ AV *padlist)
213	{	253	{
214	/* may be during global destruction */	254	/* may be during global destruction */
215	if (SvREFCNT (padlist))	255	if (SvREFCNT (padlist))
216	{	256	{
217	I32 i = AvFILLp (padlist);	257	I32 i = AvFILLp (padlist);
…		…
238	AV *padlist;	278	AV *padlist;
239	AV *av = (AV *)mg->mg_obj;	279	AV *av = (AV *)mg->mg_obj;
240		280
241	/* casting is fun. */	281	/* casting is fun. */
242	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	282	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
243	free_padlist (padlist);	283	free_padlist (aTHX_ padlist);
244		284
245	SvREFCNT_dec (av);	285	SvREFCNT_dec (av);
246		286
247	return 0;	287	return 0;
248	}	288	}
…		…
258	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	298	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
259	: 0	299	: 0
260		300
261	/* the next two functions merely cache the padlists */	301	/* the next two functions merely cache the padlists */
262	static void	302	static void
263	get_padlist (CV *cv)	303	get_padlist (pTHX_ CV *cv)
264	{	304	{
265	MAGIC *mg = CORO_MAGIC (cv);	305	MAGIC *mg = CORO_MAGIC (cv);
266	AV *av;	306	AV *av;
267		307
268	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	308	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
269	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	309	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
270	else	310	else
271	{	311	{
272	#if PREFER_PERL_FUNCTIONS	312	#if CORO_PREFER_PERL_FUNCTIONS
273	/* this is probably cleaner, but also slower? */	313	/* this is probably cleaner, but also slower? */
274	CV *cp = Perl_cv_clone (cv);	314	CV *cp = Perl_cv_clone (cv);
275	CvPADLIST (cv) = CvPADLIST (cp);	315	CvPADLIST (cv) = CvPADLIST (cp);
276	CvPADLIST (cp) = 0;	316	CvPADLIST (cp) = 0;
277	SvREFCNT_dec (cp);	317	SvREFCNT_dec (cp);
278	#else	318	#else
279	CvPADLIST (cv) = coro_clone_padlist (cv);	319	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
280	#endif	320	#endif
281	}	321	}
282	}	322	}
283		323
284	static void	324	static void
285	put_padlist (CV *cv)	325	put_padlist (pTHX_ CV *cv)
286	{	326	{
287	MAGIC *mg = CORO_MAGIC (cv);	327	MAGIC *mg = CORO_MAGIC (cv);
288	AV *av;	328	AV *av;
289		329
290	if (!mg)	330	if (!mg)
…		…
301	av_extend (av, AvMAX (av) + 1);	341	av_extend (av, AvMAX (av) + 1);
302		342
303	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	343	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
304	}	344	}
305		345
		346	/** load & save, init *******************************************************/
		347
306	#define SB do {	348	#define SB do {
307	#define SE } while (0)	349	#define SE } while (0)
308		350
309	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	351	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
310		352
311	static void	353	static void
312	load_perl (Coro__State c)	354	load_perl (pTHX_ Coro__State c)
313	{	355	{
314	#define VAR(name,type) PL_ ## name = c->name;	356	#define VAR(name,type) PL_ ## name = c->name;
315	# include "state.h"	357	# include "state.h"
316	#undef VAR	358	#undef VAR
317		359
318	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	360	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
319	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	361	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
320	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	362	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		363	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		364
321	if (c->irssv)	365	if (c->irssv)
322	{	366	{
323	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))	367	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
		368	{
324	SvREFCNT_dec (c->irssv);	369	SvREFCNT_dec (c->irssv);
		370	c->irssv = 0;
		371	}
325	else	372	else
326	{	373	{
327	REPLACE_SV (PL_rs, c->irssv);	374	REPLACE_SV (PL_rs, c->irssv);
328	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	375	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
329	sv_setsv (c->irssv_sv, PL_rs);	376	sv_setsv (c->irssv_sv, PL_rs);
…		…
335	CV *cv;	382	CV *cv;
336		383
337	/* now do the ugly restore mess */	384	/* now do the ugly restore mess */
338	while ((cv = (CV *)POPs))	385	while ((cv = (CV *)POPs))
339	{	386	{
340	put_padlist (cv); /* mark this padlist as available */	387	put_padlist (aTHX_ cv); /* mark this padlist as available */
341	CvDEPTH (cv) = PTR2IV (POPs);	388	CvDEPTH (cv) = PTR2IV (POPs);
342	CvPADLIST (cv) = (AV *)POPs;	389	CvPADLIST (cv) = (AV *)POPs;
343	}	390	}
344		391
345	PUTBACK;	392	PUTBACK;
346	}	393	}
347	}	394	}
348		395
349	static void	396	static void
350	save_perl (Coro__State c)	397	save_perl (pTHX_ Coro__State c)
351	{	398	{
352	{	399	{
353	dSP;	400	dSP;
354	I32 cxix = cxstack_ix;	401	I32 cxix = cxstack_ix;
355	PERL_CONTEXT *ccstk = cxstack;	402	PERL_CONTEXT *ccstk = cxstack;
…		…
358	/*	405	/*
359	* the worst thing you can imagine happens first - we have to save	406	* the worst thing you can imagine happens first - we have to save
360	* (and reinitialize) all cv's in the whole callchain :(	407	* (and reinitialize) all cv's in the whole callchain :(
361	*/	408	*/
362		409
363	EXTEND (SP, 3 + 1);
364	PUSHs (Nullsv);	410	XPUSHs (Nullsv);
365	/* this loop was inspired by pp_caller */	411	/* this loop was inspired by pp_caller */
366	for (;;)	412	for (;;)
367	{	413	{
368	while (cxix >= 0)	414	while (cxix >= 0)
369	{	415	{
370	PERL_CONTEXT *cx = &ccstk[cxix--];	416	PERL_CONTEXT *cx = &ccstk[cxix--];
371		417
372	if (CxTYPE (cx) == CXt_SUB)	418	if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
373	{	419	{
374	CV *cv = cx->blk_sub.cv;	420	CV *cv = cx->blk_sub.cv;
375		421
376	if (CvDEPTH (cv))	422	if (CvDEPTH (cv))
377	{	423	{
…		…
379	PUSHs ((SV *)CvPADLIST (cv));	425	PUSHs ((SV *)CvPADLIST (cv));
380	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	426	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
381	PUSHs ((SV *)cv);	427	PUSHs ((SV *)cv);
382		428
383	CvDEPTH (cv) = 0;	429	CvDEPTH (cv) = 0;
384	get_padlist (cv);	430	get_padlist (aTHX_ cv);
385	}	431	}
386	}	432	}
387	}	433	}
388		434
389	if (top_si->si_type == PERLSI_MAIN)	435	if (top_si->si_type == PERLSI_MAIN)
390	break;	436	break;
391		437
392	top_si = top_si->si_prev;	438	top_si = top_si->si_prev;
393	ccstk = top_si->si_cxstack;	439	ccstk = top_si->si_cxstack;
394	cxix = top_si->si_cxix;	440	cxix = top_si->si_cxix;
395	}	441	}
396		442
397	PUTBACK;	443	PUTBACK;
398	}	444	}
399		445
400	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	446	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
401	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	447	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
402	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	448	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		449	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
403	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	450	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
404		451
405	#define VAR(name,type)c->name = PL_ ## name;	452	#define VAR(name,type)c->name = PL_ ## name;
406	# include "state.h"	453	# include "state.h"
407	#undef VAR	454	#undef VAR
…		…
411	* allocate various perl stacks. This is an exact copy	458	* allocate various perl stacks. This is an exact copy
412	* of perl.c:init_stacks, except that it uses less memory	459	* of perl.c:init_stacks, except that it uses less memory
413	* on the (sometimes correct) assumption that coroutines do	460	* on the (sometimes correct) assumption that coroutines do
414	* not usually need a lot of stackspace.	461	* not usually need a lot of stackspace.
415	*/	462	*/
416	#if PREFER_PERL_FUNCTIONS	463	#if CORO_PREFER_PERL_FUNCTIONS
417	# define coro_init_stacks init_stacks	464	# define coro_init_stacks init_stacks
418	#else	465	#else
419	static void	466	static void
420	coro_init_stacks ()	467	coro_init_stacks (pTHX)
421	{	468	{
422	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	469	PL_curstackinfo = new_stackinfo(64, 6);
423	PL_curstackinfo->si_type = PERLSI_MAIN;	470	PL_curstackinfo->si_type = PERLSI_MAIN;
424	PL_curstack = PL_curstackinfo->si_stack;	471	PL_curstack = PL_curstackinfo->si_stack;
425	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	472	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
426		473
427	PL_stack_base = AvARRAY(PL_curstack);	474	PL_stack_base = AvARRAY(PL_curstack);
428	PL_stack_sp = PL_stack_base;	475	PL_stack_sp = PL_stack_base;
429	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	476	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
430		477
431	New(50,PL_tmps_stack,128,SV*);	478	New(50,PL_tmps_stack,64,SV*);
432	PL_tmps_floor = -1;	479	PL_tmps_floor = -1;
433	PL_tmps_ix = -1;	480	PL_tmps_ix = -1;
434	PL_tmps_max = 128;	481	PL_tmps_max = 64;
435		482
436	New(54,PL_markstack,32,I32);	483	New(54,PL_markstack,16,I32);
437	PL_markstack_ptr = PL_markstack;	484	PL_markstack_ptr = PL_markstack;
438	PL_markstack_max = PL_markstack + 32;	485	PL_markstack_max = PL_markstack + 16;
439		486
440	#ifdef SET_MARK_OFFSET	487	#ifdef SET_MARK_OFFSET
441	SET_MARK_OFFSET;	488	SET_MARK_OFFSET;
442	#endif	489	#endif
443		490
444	New(54,PL_scopestack,32,I32);	491	New(54,PL_scopestack,16,I32);
445	PL_scopestack_ix = 0;	492	PL_scopestack_ix = 0;
446	PL_scopestack_max = 32;	493	PL_scopestack_max = 16;
447		494
448	New(54,PL_savestack,64,ANY);	495	New(54,PL_savestack,64,ANY);
449	PL_savestack_ix = 0;	496	PL_savestack_ix = 0;
450	PL_savestack_max = 64;	497	PL_savestack_max = 64;
451		498
452	#if !PERL_VERSION_ATLEAST (5,9,0)	499	#if !PERL_VERSION_ATLEAST (5,9,0)
453	New(54,PL_retstack,16,OP*);	500	New(54,PL_retstack,4,OP*);
454	PL_retstack_ix = 0;	501	PL_retstack_ix = 0;
455	PL_retstack_max = 16;	502	PL_retstack_max = 4;
456	#endif	503	#endif
457	}	504	}
458	#endif	505	#endif
459		506
460	/*	507	/*
461	* destroy the stacks, the callchain etc...	508	* destroy the stacks, the callchain etc...
462	*/	509	*/
463	static void	510	static void
464	coro_destroy_stacks ()	511	coro_destroy_stacks (pTHX)
465	{	512	{
466	if (!IN_DESTRUCT)	513	if (!IN_DESTRUCT)
467	{	514	{
468	/* restore all saved variables and stuff */	515	/* restore all saved variables and stuff */
469	LEAVE_SCOPE (0);	516	LEAVE_SCOPE (0);
…		…
471		518
472	/* free all temporaries */	519	/* free all temporaries */
473	FREETMPS;	520	FREETMPS;
474	assert (PL_tmps_ix == -1);	521	assert (PL_tmps_ix == -1);
475		522
		523	/* unwind all extra stacks */
476	POPSTACK_TO (PL_mainstack);	524	POPSTACK_TO (PL_mainstack);
		525
		526	/* unwind main stack */
		527	dounwind (-1);
477	}	528	}
478		529
479	while (PL_curstackinfo->si_next)	530	while (PL_curstackinfo->si_next)
480	PL_curstackinfo = PL_curstackinfo->si_next;	531	PL_curstackinfo = PL_curstackinfo->si_next;
481		532
…		…
498	#if !PERL_VERSION_ATLEAST (5,9,0)	549	#if !PERL_VERSION_ATLEAST (5,9,0)
499	Safefree (PL_retstack);	550	Safefree (PL_retstack);
500	#endif	551	#endif
501	}	552	}
502		553
		554	static size_t
		555	coro_rss (struct coro *coro)
		556	{
		557	size_t rss = sizeof (coro);
		558
		559	if (coro->mainstack)
		560	{
		561	if (coro->flags & CF_RUNNING)
		562	{
		563	#define VAR(name,type)coro->name = PL_ ## name;
		564	# include "state.h"
		565	#undef VAR
		566	}
		567
		568	rss += sizeof (coro->curstackinfo);
		569	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		570	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		571	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		572	rss += coro->tmps_max * sizeof (SV *);
		573	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		574	rss += coro->scopestack_max * sizeof (I32);
		575	rss += coro->savestack_max * sizeof (ANY);
		576
		577	#if !PERL_VERSION_ATLEAST (5,9,0)
		578	rss += coro->retstack_max * sizeof (OP *);
		579	#endif
		580	}
		581
		582	return rss;
		583	}
		584
		585	/** coroutine stack handling ************************************************/
		586
503	static void	587	static void
504	setup_coro (struct coro *coro)	588	setup_coro (pTHX_ struct coro *coro)
505	{	589	{
506	/*	590	/*
507	* emulate part of the perl startup here.	591	* emulate part of the perl startup here.
508	*/	592	*/
509
510	coro_init_stacks ();	593	coro_init_stacks (aTHX);
511		594
512	PL_curcop = &PL_compiling;	595	PL_curcop = &PL_compiling;
513	PL_in_eval = EVAL_NULL;	596	PL_in_eval = EVAL_NULL;
		597	PL_comppad = 0;
514	PL_curpm = 0;	598	PL_curpm = 0;
515	PL_localizing = 0;	599	PL_localizing = 0;
516	PL_dirty = 0;	600	PL_dirty = 0;
517	PL_restartop = 0;	601	PL_restartop = 0;
518		602
…		…
526	Zero (&myop, 1, LOGOP);	610	Zero (&myop, 1, LOGOP);
527	myop.op_next = Nullop;	611	myop.op_next = Nullop;
528	myop.op_flags = OPf_WANT_VOID;	612	myop.op_flags = OPf_WANT_VOID;
529		613
530	PUSHMARK (SP);	614	PUSHMARK (SP);
531	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	615	XPUSHs (av_shift (GvAV (PL_defgv)));
532	PUTBACK;	616	PUTBACK;
533	PL_op = (OP *)&myop;	617	PL_op = (OP *)&myop;
534	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	618	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
535	SPAGAIN;	619	SPAGAIN;
536	}	620	}
537		621
538	ENTER; /* necessary e.g. for dounwind */	622	ENTER; /* necessary e.g. for dounwind */
539	}	623	}
540		624
541	static void	625	static void
542	free_coro_mortal ()	626	free_coro_mortal (pTHX)
543	{	627	{
544	if (coro_mortal)	628	if (coro_mortal)
545	{	629	{
546	SvREFCNT_dec (coro_mortal);	630	SvREFCNT_dec (coro_mortal);
547	coro_mortal = 0;	631	coro_mortal = 0;
548	}	632	}
549	}	633	}
550		634
		635	static void
		636	do_trace (pTHX)
		637	{
		638	if (PL_curcop != &PL_compiling)
		639	{
		640	runops_proc_t old_runops = PL_runops;
		641	dSP;
		642	ENTER;
		643	SAVETMPS;
		644	PUSHMARK (SP);
		645	PUTBACK;
		646	PL_runops = RUNOPS_DEFAULT;
		647	call_pv ("Coro::_do_trace", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD | G_NOARGS);
		648	PL_runops = old_runops;
		649	SPAGAIN;
		650	FREETMPS;
		651	LEAVE;
		652	PUTBACK;
		653	}
		654	}
		655
		656	static int
		657	runops_coro (pTHX)
		658	{
		659	COP *oldcop = 0;
		660
		661	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		662	{
		663	PERL_ASYNC_CHECK ();
		664
		665	if (oldcop != PL_curcop)
		666	{
		667	oldcop = PL_curcop;
		668	do_trace (aTHX);
		669	}
		670	}
		671
		672	TAINT_NOT;
		673	return 0;
		674	}
		675
551	/* inject a fake call to Coro::State::_cctx_init into the execution */	676	/* inject a fake call to Coro::State::_cctx_init into the execution */
		677	/* _cctx_init should be careful, as it could be called at almost any time */
		678	/* during execution of a perl program */
552	static void NOINLINE	679	static void NOINLINE
553	prepare_cctx (coro_cctx *cctx)	680	prepare_cctx (pTHX_ coro_cctx *cctx)
554	{	681	{
555	dSP;	682	dSP;
556	LOGOP myop;	683	LOGOP myop;
		684
		685	PL_top_env = &PL_start_env;
		686
		687	if (cctx->flags & CC_TRACE)
		688	PL_runops = runops_coro;
557		689
558	Zero (&myop, 1, LOGOP);	690	Zero (&myop, 1, LOGOP);
559	myop.op_next = PL_op;	691	myop.op_next = PL_op;
560	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	692	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
561		693
…		…
567	PL_op = (OP *)&myop;	699	PL_op = (OP *)&myop;
568	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	700	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
569	SPAGAIN;	701	SPAGAIN;
570	}	702	}
571		703
		704	/*
		705	* this is a _very_ stripped down perl interpreter ;)
		706	*/
572	static void	707	static void
573	coro_run (void *arg)	708	coro_run (void *arg)
574	{	709	{
		710	dTHX;
		711
575	/* coro_run is the alternative tail of transfer(), so unlock here. */	712	/* coro_run is the alternative tail of transfer(), so unlock here. */
576	UNLOCK;	713	UNLOCK;
577		714
578	/*	715	/* we now skip the entersub that lead to transfer() */
579	* this is a _very_ stripped down perl interpreter ;)	716	PL_op = PL_op->op_next;
580	*/
581	PL_top_env = &PL_start_env;
582		717
583	/* inject call to cctx_init */	718	/* inject a fake subroutine call to cctx_init */
584	prepare_cctx ((coro_cctx *)arg);	719	prepare_cctx (aTHX_ (coro_cctx *)arg);
585		720
586	/* somebody will hit me for both perl_run and PL_restartop */	721	/* somebody or something will hit me for both perl_run and PL_restartop */
587	PL_restartop = PL_op;	722	PL_restartop = PL_op;
588	perl_run (PL_curinterp);	723	perl_run (PL_curinterp);
589		724
590	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	725	/*
591	abort ();	726	* If perl-run returns we assume exit() was being called or the coro
		727	* fell off the end, which seems to be the only valid (non-bug)
		728	* reason for perl_run to return. We try to exit by jumping to the
		729	* bootstrap-time "top" top_env, as we cannot restore the "main"
		730	* coroutine as Coro has no such concept
		731	*/
		732	PL_top_env = main_top_env;
		733	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
592	}	734	}
593		735
594	static coro_cctx *	736	static coro_cctx *
595	cctx_new ()	737	cctx_new ()
596	{	738	{
597	coro_cctx *cctx;	739	coro_cctx *cctx;
		740	void *stack_start;
		741	size_t stack_size;
598		742
599	++cctx_count;	743	++cctx_count;
600		744
601	Newz (0, cctx, 1, coro_cctx);	745	Newz (0, cctx, 1, coro_cctx);
602		746
603	#if HAVE_MMAP	747	#if HAVE_MMAP
604		748
605	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	749	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
606	/* mmap supposedly does allocate-on-write for us */	750	/* mmap supposedly does allocate-on-write for us */
607	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);	751	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
608		752
609	if (cctx->sptr == (void *)-1)	753	if (cctx->sptr != (void *)-1)
610	{
611	perror ("FATAL: unable to mmap stack for coroutine");
612	_exit (EXIT_FAILURE);
613	}	754	{
614
615	# if STACKGUARD	755	# if CORO_STACKGUARD
616	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	756	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
617	# endif	757	# endif
		758	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		759	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		760	cctx->flags |= CC_MAPPED;
		761	}
		762	else
		763	#endif
		764	{
		765	cctx->ssize = coro_stacksize * (long)sizeof (long);
		766	New (0, cctx->sptr, coro_stacksize, long);
618		767
619	#else
620
621	cctx->ssize = STACKSIZE * (long)sizeof (long);
622	New (0, cctx->sptr, STACKSIZE, long);
623
624	if (!cctx->sptr)	768	if (!cctx->sptr)
625	{	769	{
626	perror ("FATAL: unable to malloc stack for coroutine");	770	perror ("FATAL: unable to allocate stack for coroutine");
627	_exit (EXIT_FAILURE);	771	_exit (EXIT_FAILURE);
628	}	772	}
629		773
630	#endif	774	stack_start = cctx->sptr;
		775	stack_size = cctx->ssize;
		776	}
631		777
632	#if USE_VALGRIND	778	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
633	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
634	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
635	cctx->ssize + (char *)cctx->sptr
636	);
637	#endif
638
639	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	779	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
640		780
641	return cctx;	781	return cctx;
642	}	782	}
643		783
644	static void	784	static void
…		…
647	if (!cctx)	787	if (!cctx)
648	return;	788	return;
649		789
650	--cctx_count;	790	--cctx_count;
651		791
652	#if USE_VALGRIND	792	#if CORO_USE_VALGRIND
653	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	793	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
654	#endif	794	#endif
655		795
656	#if HAVE_MMAP	796	#if HAVE_MMAP
		797	if (cctx->flags & CC_MAPPED)
657	munmap (cctx->sptr, cctx->ssize);	798	munmap (cctx->sptr, cctx->ssize);
658	#else	799	else
		800	#endif
659	Safefree (cctx->sptr);	801	Safefree (cctx->sptr);
660	#endif
661		802
662	Safefree (cctx);	803	Safefree (cctx);
663	}	804	}
664		805
665	static coro_cctx *	806	static coro_cctx *
666	cctx_get ()	807	cctx_get (pTHX)
667	{	808	{
668	coro_cctx *cctx;
669
670	if (cctx_first)	809	while (cctx_first)
671	{	810	{
672	cctx = cctx_first;	811	coro_cctx *cctx = cctx_first;
673	cctx_first = cctx->next;	812	cctx_first = cctx->next;
674	--cctx_idle;	813	--cctx_idle;
675	}	814
676	else	815	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
677	{	816	return cctx;
678	cctx = cctx_new ();	817
679	PL_op = PL_op->op_next;	818	cctx_destroy (cctx);
680	}	819	}
681		820
682	return cctx;	821	return cctx_new ();
683	}	822	}
684		823
685	static void	824	static void
686	cctx_put (coro_cctx *cctx)	825	cctx_put (coro_cctx *cctx)
687	{	826	{
…		…
690	{	829	{
691	coro_cctx *first = cctx_first;	830	coro_cctx *first = cctx_first;
692	cctx_first = first->next;	831	cctx_first = first->next;
693	--cctx_idle;	832	--cctx_idle;
694		833
695	assert (!first->inuse);
696	cctx_destroy (first);	834	cctx_destroy (first);
697	}	835	}
698		836
699	++cctx_idle;	837	++cctx_idle;
700	cctx->next = cctx_first;	838	cctx->next = cctx_first;
701	cctx_first = cctx;	839	cctx_first = cctx;
702	}	840	}
703		841
		842	/** coroutine switching *****************************************************/
		843
704	/* never call directly, always through the coro_state_transfer global variable */	844	/* never call directly, always through the coro_state_transfer global variable */
705	static void NOINLINE	845	static void NOINLINE
706	transfer (struct coro *prev, struct coro *next)	846	transfer (pTHX_ struct coro *prev, struct coro *next)
707	{	847	{
708	dSTACKLEVEL;	848	dSTACKLEVEL;
709		849
710	/* sometimes transfer is only called to set idle_sp */	850	/* sometimes transfer is only called to set idle_sp */
711	if (!next)	851	if (!next)
…		…
719		859
720	if (prev->flags & CF_NEW)	860	if (prev->flags & CF_NEW)
721	{	861	{
722	/* create a new empty context */	862	/* create a new empty context */
723	Newz (0, prev->cctx, 1, coro_cctx);	863	Newz (0, prev->cctx, 1, coro_cctx);
724	prev->cctx->inuse = 1;
725	prev->flags &= ~CF_NEW;	864	prev->flags &= ~CF_NEW;
726	prev->flags |= CF_RUNNING;	865	prev->flags |= CF_RUNNING;
727	}	866	}
728		867
729	/*TODO: must not croak here */	868	/*TODO: must not croak here */
730	if (!prev->flags & CF_RUNNING)	869	if (!prev->flags & CF_RUNNING)
731	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	870	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
732		871
733	if (next->flags & CF_RUNNING)	872	if (next->flags & CF_RUNNING)
734	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	873	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		874
		875	if (next->flags & CF_DESTROYED)
		876	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
735		877
736	prev->flags &= ~CF_RUNNING;	878	prev->flags &= ~CF_RUNNING;
737	next->flags |= CF_RUNNING;	879	next->flags |= CF_RUNNING;
738		880
739	LOCK;	881	LOCK;
…		…
741	if (next->flags & CF_NEW)	883	if (next->flags & CF_NEW)
742	{	884	{
743	/* need to start coroutine */	885	/* need to start coroutine */
744	next->flags &= ~CF_NEW;	886	next->flags &= ~CF_NEW;
745	/* first get rid of the old state */	887	/* first get rid of the old state */
746	save_perl (prev);	888	save_perl (aTHX_ prev);
747	/* setup coroutine call */	889	/* setup coroutine call */
748	setup_coro (next);	890	setup_coro (aTHX_ next);
749	/* need a new stack */
750	assert (!next->cctx);
751	}	891	}
752	else	892	else
753	{	893	{
754	/* coroutine already started */	894	/* coroutine already started */
755	save_perl (prev);	895	save_perl (aTHX_ prev);
756	load_perl (next);	896	load_perl (aTHX_ next);
757	}	897	}
758		898
759	prev__cctx = prev->cctx;	899	prev__cctx = prev->cctx;
760		900
761	/* possibly "free" the cctx */	901	/* possibly "free" the cctx */
…		…
765	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	905	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
766		906
767	prev->cctx = 0;	907	prev->cctx = 0;
768		908
769	cctx_put (prev__cctx);	909	cctx_put (prev__cctx);
770	prev__cctx->inuse = 0;
771	}	910	}
772		911
773	if (!next->cctx)	912	if (!next->cctx)
774	{
775	next->cctx = cctx_get ();	913	next->cctx = cctx_get (aTHX);
776	assert (!next->cctx->inuse);
777	next->cctx->inuse = 1;
778	}
779		914
780	if (prev__cctx != next->cctx)	915	if (prev__cctx != next->cctx)
781	{	916	{
782	prev__cctx->top_env = PL_top_env;	917	prev__cctx->top_env = PL_top_env;
783	PL_top_env = next->cctx->top_env;	918	PL_top_env = next->cctx->top_env;
784	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	919	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
785	}	920	}
786		921
787	free_coro_mortal ();	922	free_coro_mortal (aTHX);
788
789	UNLOCK;	923	UNLOCK;
790	}	924	}
791	}	925	}
792		926
793	struct transfer_args	927	struct transfer_args
794	{	928	{
795	struct coro *prev, *next;	929	struct coro *prev, *next;
796	};	930	};
797		931
798	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	932	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
799		933
		934	/** high level stuff ********************************************************/
		935
800	static void	936	static int
801	coro_state_destroy (struct coro *coro)	937	coro_state_destroy (pTHX_ struct coro *coro)
802	{	938	{
803	if (coro->refcnt--)	939	if (coro->flags & CF_DESTROYED)
804	return;	940	return 0;
		941
		942	coro->flags |= CF_DESTROYED;
		943
		944	if (coro->flags & CF_READY)
		945	{
		946	/* reduce nready, as destroying a ready coro effectively unreadies it */
		947	/* alternative: look through all ready queues and remove the coro */
		948	LOCK;
		949	--coro_nready;
		950	UNLOCK;
		951	}
		952	else
		953	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
805		954
806	if (coro->mainstack && coro->mainstack != main_mainstack)	955	if (coro->mainstack && coro->mainstack != main_mainstack)
807	{	956	{
808	struct coro temp;	957	struct coro temp;
		958
		959	assert (!(coro->flags & CF_RUNNING));
		960
809	Zero (&temp, 1, struct coro);	961	Zero (&temp, 1, struct coro);
810	temp.save = CORO_SAVE_ALL;	962	temp.save = CORO_SAVE_ALL;
811		963
812	if (coro->flags & CF_RUNNING)	964	if (coro->flags & CF_RUNNING)
813	croak ("FATAL: tried to destroy currently running coroutine");	965	croak ("FATAL: tried to destroy currently running coroutine");
814		966
815	save_perl (&temp);	967	save_perl (aTHX_ &temp);
816	load_perl (coro);	968	load_perl (aTHX_ coro);
817		969
818	coro_destroy_stacks ();	970	coro_destroy_stacks (aTHX);
819		971
820	load_perl (&temp); /* this will get rid of defsv etc.. */	972	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
821		973
822	coro->mainstack = 0;	974	coro->mainstack = 0;
823	}	975	}
824		976
825	cctx_destroy (coro->cctx);	977	cctx_destroy (coro->cctx);
826	SvREFCNT_dec (coro->args);	978	SvREFCNT_dec (coro->args);
827	Safefree (coro);	979
		980	if (coro->next) coro->next->prev = coro->prev;
		981	if (coro->prev) coro->prev->next = coro->next;
		982	if (coro == coro_first) coro_first = coro->next;
		983
		984	return 1;
828	}	985	}
829		986
830	static int	987	static int
831	coro_state_clear (pTHX_ SV *sv, MAGIC *mg)	988	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
832	{	989	{
833	struct coro *coro = (struct coro *)mg->mg_ptr;	990	struct coro *coro = (struct coro *)mg->mg_ptr;
834	mg->mg_ptr = 0;	991	mg->mg_ptr = 0;
835		992
		993	coro->hv = 0;
		994
		995	if (--coro->refcnt < 0)
		996	{
836	coro_state_destroy (coro);	997	coro_state_destroy (aTHX_ coro);
		998	Safefree (coro);
		999	}
837		1000
838	return 0;	1001	return 0;
839	}	1002	}
840		1003
841	static int	1004	static int
…		…
848	return 0;	1011	return 0;
849	}	1012	}
850		1013
851	static MGVTBL coro_state_vtbl = {	1014	static MGVTBL coro_state_vtbl = {
852	0, 0, 0, 0,	1015	0, 0, 0, 0,
853	coro_state_clear,	1016	coro_state_free,
854	0,	1017	0,
855	#ifdef MGf_DUP	1018	#ifdef MGf_DUP
856	coro_state_dup,	1019	coro_state_dup,
857	#else	1020	#else
858	# define MGf_DUP 0	1021	# define MGf_DUP 0
859	#endif	1022	#endif
860	};	1023	};
861		1024
862	static struct coro *	1025	static struct coro *
863	SvSTATE (SV *coro)	1026	SvSTATE_ (pTHX_ SV *coro)
864	{	1027	{
865	HV *stash;	1028	HV *stash;
866	MAGIC *mg;	1029	MAGIC *mg;
867		1030
868	if (SvROK (coro))	1031	if (SvROK (coro))
…		…
874	/* very slow, but rare, check */	1037	/* very slow, but rare, check */
875	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	1038	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
876	croak ("Coro::State object required");	1039	croak ("Coro::State object required");
877	}	1040	}
878		1041
879	mg = SvMAGIC (coro);	1042	mg = CORO_MAGIC (coro);
880	assert (mg->mg_type == PERL_MAGIC_ext);
881	return (struct coro *)mg->mg_ptr;	1043	return (struct coro *)mg->mg_ptr;
882	}	1044	}
883		1045
		1046	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1047
884	static void	1048	static void
885	prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv)	1049	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
886	{	1050	{
887	ta->prev = SvSTATE (prev_sv);	1051	ta->prev = SvSTATE (prev_sv);
888	ta->next = SvSTATE (next_sv);	1052	ta->next = SvSTATE (next_sv);
889	}	1053	}
890		1054
891	static void	1055	static void
892	api_transfer (SV *prev_sv, SV *next_sv)	1056	api_transfer (SV *prev_sv, SV *next_sv)
893	{	1057	{
		1058	dTHX;
894	struct transfer_args ta;	1059	struct transfer_args ta;
895		1060
896	prepare_transfer (&ta, prev_sv, next_sv);	1061	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
897	TRANSFER (ta);	1062	TRANSFER (ta);
898	}	1063	}
899		1064
900	static int	1065	static int
901	api_save (SV *coro_sv, int new_save)	1066	api_save (SV *coro_sv, int new_save)
902	{	1067	{
		1068	dTHX;
903	struct coro *coro = SvSTATE (coro_sv);	1069	struct coro *coro = SvSTATE (coro_sv);
904	int old_save = coro->save;	1070	int old_save = coro->save;
905		1071
906	if (new_save >= 0)	1072	if (new_save >= 0)
907	coro->save = new_save;	1073	coro->save = new_save;
…		…
909	return old_save;	1075	return old_save;
910	}	1076	}
911		1077
912	/** Coro ********************************************************************/	1078	/** Coro ********************************************************************/
913		1079
914	#define PRIO_MAX 3
915	#define PRIO_HIGH 1
916	#define PRIO_NORMAL 0
917	#define PRIO_LOW -1
918	#define PRIO_IDLE -3
919	#define PRIO_MIN -4
920
921	/* for Coro.pm */
922	static SV *coro_current;
923	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
924	static int coro_nready;
925
926	static void	1080	static void
927	coro_enq (SV *coro_sv)	1081	coro_enq (pTHX_ SV *coro_sv)
928	{	1082	{
929	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1083	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
930	coro_nready++;
931	}	1084	}
932		1085
933	static SV *	1086	static SV *
934	coro_deq (int min_prio)	1087	coro_deq (pTHX_ int min_prio)
935	{	1088	{
936	int prio = PRIO_MAX - PRIO_MIN;	1089	int prio = PRIO_MAX - PRIO_MIN;
937		1090
938	min_prio -= PRIO_MIN;	1091	min_prio -= PRIO_MIN;
939	if (min_prio < 0)	1092	if (min_prio < 0)
940	min_prio = 0;	1093	min_prio = 0;
941		1094
942	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1095	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
943	if (AvFILLp (coro_ready [prio]) >= 0)	1096	if (AvFILLp (coro_ready [prio]) >= 0)
944	{
945	coro_nready--;
946	return av_shift (coro_ready [prio]);	1097	return av_shift (coro_ready [prio]);
947	}
948		1098
949	return 0;	1099	return 0;
950	}	1100	}
951		1101
952	static int	1102	static int
953	api_ready (SV *coro_sv)	1103	api_ready (SV *coro_sv)
954	{	1104	{
		1105	dTHX;
955	struct coro *coro;	1106	struct coro *coro;
956		1107
957	if (SvROK (coro_sv))	1108	if (SvROK (coro_sv))
958	coro_sv = SvRV (coro_sv);	1109	coro_sv = SvRV (coro_sv);
959		1110
…		…
963	return 0;	1114	return 0;
964		1115
965	coro->flags |= CF_READY;	1116	coro->flags |= CF_READY;
966		1117
967	LOCK;	1118	LOCK;
968	coro_enq (SvREFCNT_inc (coro_sv));	1119	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1120	++coro_nready;
969	UNLOCK;	1121	UNLOCK;
970		1122
971	return 1;	1123	return 1;
972	}	1124	}
973		1125
974	static int	1126	static int
975	api_is_ready (SV *coro_sv)	1127	api_is_ready (SV *coro_sv)
976	{	1128	{
		1129	dTHX;
977	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1130	return !!(SvSTATE (coro_sv)->flags & CF_READY);
978	}	1131	}
979		1132
980	static void	1133	static void
981	prepare_schedule (struct transfer_args *ta)	1134	prepare_schedule (pTHX_ struct transfer_args *ta)
982	{	1135	{
983	SV *prev, *next;	1136	SV *prev_sv, *next_sv;
984		1137
985	for (;;)	1138	for (;;)
986	{	1139	{
987	LOCK;	1140	LOCK;
988	next = coro_deq (PRIO_MIN);	1141	next_sv = coro_deq (aTHX_ PRIO_MIN);
		1142
		1143	/* nothing to schedule: call the idle handler */
		1144	if (!next_sv)
		1145	{
		1146	dSP;
		1147	UNLOCK;
		1148
		1149	ENTER;
		1150	SAVETMPS;
		1151
		1152	PUSHMARK (SP);
		1153	PUTBACK;
		1154	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1155
		1156	FREETMPS;
		1157	LEAVE;
		1158	continue;
		1159	}
		1160
		1161	ta->next = SvSTATE (next_sv);
		1162
		1163	/* cannot transfer to destroyed coros, skip and look for next */
		1164	if (ta->next->flags & CF_DESTROYED)
		1165	{
		1166	UNLOCK;
		1167	SvREFCNT_dec (next_sv);
		1168	/* coro_nready is already taken care of by destroy */
		1169	continue;
		1170	}
		1171
		1172	--coro_nready;
989	UNLOCK;	1173	UNLOCK;
990
991	if (next)
992	break;	1174	break;
993
994	{
995	dSP;
996
997	ENTER;
998	SAVETMPS;
999
1000	PUSHMARK (SP);
1001	PUTBACK;
1002	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1003
1004	FREETMPS;
1005	LEAVE;
1006	}	1175	}
1007	}
1008
1009	prev = SvRV (coro_current);
1010	SvRV_set (coro_current, next);
1011		1176
1012	/* free this only after the transfer */	1177	/* free this only after the transfer */
1013	LOCK;	1178	prev_sv = SvRV (coro_current);
1014	free_coro_mortal ();	1179	SvRV_set (coro_current, next_sv);
1015	UNLOCK;
1016	coro_mortal = prev;
1017
1018	assert (!SvROK(prev));//D
1019	assert (!SvROK(next));//D
1020
1021	ta->prev = SvSTATE (prev);	1180	ta->prev = SvSTATE (prev_sv);
1022	ta->next = SvSTATE (next);
1023		1181
1024	assert (ta->next->flags & CF_READY);	1182	assert (ta->next->flags & CF_READY);
1025	ta->next->flags &= ~CF_READY;	1183	ta->next->flags &= ~CF_READY;
1026	}
1027		1184
		1185	LOCK;
		1186	free_coro_mortal (aTHX);
		1187	coro_mortal = prev_sv;
		1188	UNLOCK;
		1189	}
		1190
1028	static void	1191	static void
1029	prepare_cede (struct transfer_args *ta)	1192	prepare_cede (pTHX_ struct transfer_args *ta)
1030	{	1193	{
1031	api_ready (coro_current);	1194	api_ready (coro_current);
1032	prepare_schedule (ta);	1195	prepare_schedule (aTHX_ ta);
1033	}	1196	}
1034		1197
1035	static int	1198	static int
1036	prepare_cede_notself (struct transfer_args *ta)	1199	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1037	{	1200	{
1038	if (coro_nready)	1201	if (coro_nready)
1039	{	1202	{
1040	SV *prev = SvRV (coro_current);	1203	SV *prev = SvRV (coro_current);
1041	prepare_schedule (ta);	1204	prepare_schedule (aTHX_ ta);
1042	api_ready (prev);	1205	api_ready (prev);
1043	return 1;	1206	return 1;
1044	}	1207	}
1045	else	1208	else
1046	return 0;	1209	return 0;
1047	}	1210	}
1048		1211
1049	static void	1212	static void
1050	api_schedule (void)	1213	api_schedule (void)
1051	{	1214	{
		1215	dTHX;
1052	struct transfer_args ta;	1216	struct transfer_args ta;
1053		1217
1054	prepare_schedule (&ta);	1218	prepare_schedule (aTHX_ &ta);
1055	TRANSFER (ta);	1219	TRANSFER (ta);
1056	}	1220	}
1057		1221
1058	static int	1222	static int
1059	api_cede (void)	1223	api_cede (void)
1060	{	1224	{
		1225	dTHX;
1061	struct transfer_args ta;	1226	struct transfer_args ta;
1062		1227
1063	prepare_cede (&ta);	1228	prepare_cede (aTHX_ &ta);
1064		1229
1065	if (ta.prev != ta.next)	1230	if (ta.prev != ta.next)
1066	{	1231	{
1067	TRANSFER (ta);	1232	TRANSFER (ta);
1068	return 1;	1233	return 1;
…		…
1072	}	1237	}
1073		1238
1074	static int	1239	static int
1075	api_cede_notself (void)	1240	api_cede_notself (void)
1076	{	1241	{
		1242	dTHX;
1077	struct transfer_args ta;	1243	struct transfer_args ta;
1078		1244
1079	if (prepare_cede_notself (&ta))	1245	if (prepare_cede_notself (aTHX_ &ta))
1080	{	1246	{
1081	TRANSFER (ta);	1247	TRANSFER (ta);
1082	return 1;	1248	return 1;
1083	}	1249	}
1084	else	1250	else
…		…
1100		1266
1101	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1267	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1102	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1268	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1103	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1269	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1104	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1270	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1271	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1272	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1105	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1273	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1106		1274
1107	main_mainstack = PL_mainstack;	1275	main_mainstack = PL_mainstack;
		1276	main_top_env = PL_top_env;
		1277
		1278	while (main_top_env->je_prev)
		1279	main_top_env = main_top_env->je_prev;
1108		1280
1109	coroapi.ver = CORO_API_VERSION;	1281	coroapi.ver = CORO_API_VERSION;
1110	coroapi.transfer = api_transfer;	1282	coroapi.transfer = api_transfer;
1111		1283
1112	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1284	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1120	HV *hv;	1292	HV *hv;
1121	int i;	1293	int i;
1122		1294
1123	Newz (0, coro, 1, struct coro);	1295	Newz (0, coro, 1, struct coro);
1124	coro->args = newAV ();	1296	coro->args = newAV ();
1125	coro->save = CORO_SAVE_ALL;	1297	coro->save = CORO_SAVE_DEF;
1126	coro->flags = CF_NEW;	1298	coro->flags = CF_NEW;
1127		1299
		1300	if (coro_first) coro_first->prev = coro;
		1301	coro->next = coro_first;
		1302	coro_first = coro;
		1303
1128	hv = newHV ();	1304	coro->hv = hv = newHV ();
1129	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1305	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1130	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1306	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1131		1307
1132	for (i = 1; i < items; i++)	1308	for (i = 1; i < items; i++)
1133	av_push (coro->args, newSVsv (ST (i)));	1309	av_push (coro->args, newSVsv (ST (i)));
…		…
1137		1313
1138	int	1314	int
1139	save (SV *coro, int new_save = -1)	1315	save (SV *coro, int new_save = -1)
1140	CODE:	1316	CODE:
1141	RETVAL = api_save (coro, new_save);	1317	RETVAL = api_save (coro, new_save);
		1318	OUTPUT:
		1319	RETVAL
		1320
		1321	int
		1322	save_also (SV *coro_sv, int save_also)
		1323	CODE:
		1324	{
		1325	struct coro *coro = SvSTATE (coro_sv);
		1326	RETVAL = coro->save;
		1327	coro->save |= save_also;
		1328	}
1142	OUTPUT:	1329	OUTPUT:
1143	RETVAL	1330	RETVAL
1144		1331
1145	void	1332	void
1146	_set_stacklevel (...)	1333	_set_stacklevel (...)
…		…
1162		1349
1163	case 1:	1350	case 1:
1164	if (items != 2)	1351	if (items != 2)
1165	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1352	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1166		1353
1167	prepare_transfer (&ta, ST (0), ST (1));	1354	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1168	break;	1355	break;
1169		1356
1170	case 2:	1357	case 2:
1171	prepare_schedule (&ta);	1358	prepare_schedule (aTHX_ &ta);
1172	break;	1359	break;
1173		1360
1174	case 3:	1361	case 3:
1175	prepare_cede (&ta);	1362	prepare_cede (aTHX_ &ta);
1176	break;	1363	break;
1177		1364
1178	case 4:	1365	case 4:
1179	if (!prepare_cede_notself (&ta))	1366	if (!prepare_cede_notself (aTHX_ &ta))
1180	XSRETURN_EMPTY;	1367	XSRETURN_EMPTY;
1181		1368
1182	break;	1369	break;
1183	}	1370	}
1184		1371
1185	BARRIER;	1372	BARRIER;
1186	TRANSFER (ta);	1373	TRANSFER (ta);
1187	}
1188		1374
1189	void	1375	if (GIMME_V != G_VOID && ta.next != ta.prev)
1190	_clone_state_from (SV *dst, SV *src)	1376	XSRETURN_YES;
		1377	}
		1378
		1379	bool
		1380	_destroy (SV *coro_sv)
1191	CODE:	1381	CODE:
1192	{	1382	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1193	struct coro *coro_src = SvSTATE (src);	1383	OUTPUT:
1194		1384	RETVAL
1195	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1196
1197	++coro_src->refcnt;
1198	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP;
1199	}
1200		1385
1201	void	1386	void
1202	_exit (code)	1387	_exit (code)
1203	int code	1388	int code
1204	PROTOTYPE: $	1389	PROTOTYPE: $
1205	CODE:	1390	CODE:
1206	_exit (code);	1391	_exit (code);
1207		1392
1208	int	1393	int
		1394	cctx_stacksize (int new_stacksize = 0)
		1395	CODE:
		1396	RETVAL = coro_stacksize;
		1397	if (new_stacksize)
		1398	coro_stacksize = new_stacksize;
		1399	OUTPUT:
		1400	RETVAL
		1401
		1402	int
1209	cctx_count ()	1403	cctx_count ()
1210	CODE:	1404	CODE:
1211	RETVAL = cctx_count;	1405	RETVAL = cctx_count;
1212	OUTPUT:	1406	OUTPUT:
1213	RETVAL	1407	RETVAL
…		…
1217	CODE:	1411	CODE:
1218	RETVAL = cctx_idle;	1412	RETVAL = cctx_idle;
1219	OUTPUT:	1413	OUTPUT:
1220	RETVAL	1414	RETVAL
1221		1415
		1416	void
		1417	list ()
		1418	PPCODE:
		1419	{
		1420	struct coro *coro;
		1421	for (coro = coro_first; coro; coro = coro->next)
		1422	if (coro->hv)
		1423	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1424	}
		1425
		1426	void
		1427	call (Coro::State coro, SV *coderef)
		1428	ALIAS:
		1429	eval = 1
		1430	CODE:
		1431	{
		1432	if (coro->mainstack)
		1433	{
		1434	struct coro temp;
		1435	Zero (&temp, 1, struct coro);
		1436	temp.save = CORO_SAVE_ALL;
		1437
		1438	if (!(coro->flags & CF_RUNNING))
		1439	{
		1440	save_perl (aTHX_ &temp);
		1441	load_perl (aTHX_ coro);
		1442	}
		1443
		1444	{
		1445	dSP;
		1446	ENTER;
		1447	SAVETMPS;
		1448	PUSHMARK (SP);
		1449	PUTBACK;
		1450	if (ix)
		1451	eval_sv (coderef, 0);
		1452	else
		1453	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1454	SPAGAIN;
		1455	FREETMPS;
		1456	LEAVE;
		1457	PUTBACK;
		1458	}
		1459
		1460	if (!(coro->flags & CF_RUNNING))
		1461	{
		1462	save_perl (aTHX_ coro);
		1463	load_perl (aTHX_ &temp);
		1464	}
		1465	}
		1466	}
		1467
		1468	SV *
		1469	is_ready (Coro::State coro)
		1470	PROTOTYPE: $
		1471	ALIAS:
		1472	is_ready = CF_READY
		1473	is_running = CF_RUNNING
		1474	is_new = CF_NEW
		1475	is_destroyed = CF_DESTROYED
		1476	CODE:
		1477	RETVAL = boolSV (coro->flags & ix);
		1478	OUTPUT:
		1479	RETVAL
		1480
		1481	void
		1482	trace (Coro::State coro, int enable = 0)
		1483	CODE:
		1484	if (enable)
		1485	{
		1486	if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1487	XSRETURN_EMPTY;
		1488
		1489	if (coro->flags & CF_RUNNING)
		1490	croak ("cannot enable tracing on running coroutine");
		1491
		1492	if (coro->cctx)
		1493	croak ("cannot enable tracing on coroutine with custom stack");
		1494
		1495	coro->cctx = cctx_new ();
		1496	coro->cctx->flags |= CC_TRACE;
		1497	}
		1498	else
		1499	if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1500	{
		1501	coro->cctx->flags &= ~CC_TRACE;
		1502	coro->cctx->flags |= CC_NOREUSE;
		1503	}
		1504
		1505	SV *
		1506	has_stack (Coro::State coro)
		1507	PROTOTYPE: $
		1508	CODE:
		1509	RETVAL = boolSV (!!coro->cctx);
		1510	OUTPUT:
		1511	RETVAL
		1512
		1513	IV
		1514	rss (Coro::State coro)
		1515	PROTOTYPE: $
		1516	CODE:
		1517	RETVAL = coro_rss (coro);
		1518	OUTPUT:
		1519	RETVAL
		1520
		1521
1222	MODULE = Coro::State PACKAGE = Coro	1522	MODULE = Coro::State PACKAGE = Coro
1223		1523
1224	BOOT:	1524	BOOT:
1225	{	1525	{
1226	int i;	1526	int i;
		1527
		1528	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1529	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1530	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1531
		1532	coro_current = get_sv ("Coro::current", FALSE);
		1533	SvREADONLY_on (coro_current);
1227		1534
1228	coro_stash = gv_stashpv ("Coro", TRUE);	1535	coro_stash = gv_stashpv ("Coro", TRUE);
1229		1536
1230	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1537	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1231	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1538	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1232	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1539	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1233	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1540	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1234	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1541	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1235	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1542	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1236
1237	coro_current = get_sv ("Coro::current", FALSE);
1238	SvREADONLY_on (coro_current);
1239		1543
1240	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1544	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1241	coro_ready[i] = newAV ();	1545	coro_ready[i] = newAV ();
1242		1546
1243	{	1547	{
…		…
1293	CODE:	1597	CODE:
1294	RETVAL = boolSV (api_ready (self));	1598	RETVAL = boolSV (api_ready (self));
1295	OUTPUT:	1599	OUTPUT:
1296	RETVAL	1600	RETVAL
1297		1601
1298	SV *
1299	is_ready (SV *self)
1300	PROTOTYPE: $
1301	CODE:
1302	RETVAL = boolSV (api_is_ready (self));
1303	OUTPUT:
1304	RETVAL
1305
1306	int	1602	int
1307	nready (...)	1603	nready (...)
1308	PROTOTYPE:	1604	PROTOTYPE:
1309	CODE:	1605	CODE:
1310	RETVAL = coro_nready;	1606	RETVAL = coro_nready;
1311	OUTPUT:	1607	OUTPUT:
1312	RETVAL	1608	RETVAL
1313		1609
		1610	# for async_pool speedup
		1611	void
		1612	_pool_1 (SV *cb)
		1613	CODE:
		1614	{
		1615	int i, len;
		1616	HV *hv = (HV *)SvRV (coro_current);
		1617	AV *defav = GvAV (PL_defgv);
		1618	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1619	AV *invoke_av;
		1620
		1621	if (!invoke)
		1622	croak ("\3terminate\2\n");
		1623
		1624	hv_store (hv, "desc", sizeof ("desc") - 1,
		1625	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1626
		1627	invoke_av = (AV *)SvRV (invoke);
		1628	len = av_len (invoke_av);
		1629
		1630	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1631
		1632	if (len > 0)
		1633	{
		1634	av_fill (defav, len - 1);
		1635	for (i = 0; i < len; ++i)
		1636	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1637	}
		1638
		1639	SvREFCNT_dec (invoke);
		1640	}
		1641
		1642	void
		1643	_pool_2 (SV *cb)
		1644	CODE:
		1645	{
		1646	struct coro *coro = SvSTATE (coro_current);
		1647
		1648	sv_setsv (cb, &PL_sv_undef);
		1649
		1650	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1651	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1652	croak ("\3terminate\2\n");
		1653
		1654	av_clear (GvAV (PL_defgv));
		1655	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1656	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1657	coro->save = CORO_SAVE_DEF;
		1658	coro->prio = 0;
		1659	av_push (av_async_pool, newSVsv (coro_current));
		1660	}
		1661
		1662
1314	MODULE = Coro::State PACKAGE = Coro::AIO	1663	MODULE = Coro::State PACKAGE = Coro::AIO
1315		1664
1316	SV *	1665	SV *
1317	_get_state ()	1666	_get_state ()
1318	CODE:	1667	CODE:

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