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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.168 by root, Thu Sep 27 16:10:48 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_NOREUSE = 0x02, /* throw this away after tracing */
		148	CC_TRACE = 0x04,
		149	CC_TRACE_SUB = 0x08, /* trace sub calls */
		150	CC_TRACE_LINE = 0x10, /* trace each statement */
		151	CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
		152	};
132		153
133	/* this is a structure representing a c-level coroutine */	154	/* this is a structure representing a c-level coroutine */
134	typedef struct coro_cctx {	155	typedef struct coro_cctx {
135	struct coro_cctx *next;	156	struct coro_cctx *next;
136		157
137	/* the stack */	158	/* the stack */
138	void *sptr;	159	void *sptr;
139	long ssize; /* positive == mmap, otherwise malloc */	160	size_t ssize;
140		161
141	/* cpu state */	162	/* cpu state */
142	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	163	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 */	164	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
144	JMPENV *top_env;	165	JMPENV *top_env;
145	coro_context cctx;	166	coro_context cctx;
146		167
147	int inuse;
148
149	#if USE_VALGRIND	168	#if CORO_USE_VALGRIND
150	int valgrind_id;	169	int valgrind_id;
151	#endif	170	#endif
		171	unsigned char flags;
152	} coro_cctx;	172	} coro_cctx;
153		173
154	enum {	174	enum {
155	CF_RUNNING = 0x0001, /* coroutine is running */	175	CF_RUNNING = 0x0001, /* coroutine is running */
156	CF_READY = 0x0002, /* coroutine is ready */	176	CF_READY = 0x0002, /* coroutine is ready */
…		…
171		191
172	/* optionally saved, might be zero */	192	/* optionally saved, might be zero */
173	AV *defav; /* @_ */	193	AV *defav; /* @_ */
174	SV *defsv; /* $_ */	194	SV *defsv; /* $_ */
175	SV *errsv; /* $@ */	195	SV *errsv; /* $@ */
		196	GV *deffh; /* default filehandle */
176	SV *irssv; /* $/ */	197	SV *irssv; /* $/ */
177	SV *irssv_sv; /* real $/ cache */	198	SV *irssv_sv; /* real $/ cache */
178		199
179	#define VAR(name,type) type name;	200	#define VAR(name,type) type name;
180	# include "state.h"	201	# include "state.h"
181	#undef VAR	202	#undef VAR
182		203
183	/* coro process data */	204	/* coro process data */
184	int prio;	205	int prio;
		206
		207	/* linked list */
		208	struct coro *next, *prev;
		209	HV *hv; /* the perl hash associated with this coro, if any */
185	};	210	};
186		211
187	typedef struct coro *Coro__State;	212	typedef struct coro *Coro__State;
188	typedef struct coro *Coro__State_or_hashref;	213	typedef struct coro *Coro__State_or_hashref;
189		214
		215	/** Coro ********************************************************************/
		216
		217	#define PRIO_MAX 3
		218	#define PRIO_HIGH 1
		219	#define PRIO_NORMAL 0
		220	#define PRIO_LOW -1
		221	#define PRIO_IDLE -3
		222	#define PRIO_MIN -4
		223
		224	/* for Coro.pm */
		225	static SV *coro_current;
		226	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		227	static int coro_nready;
		228	static struct coro *coro_first;
		229
		230	/** lowlevel stuff **********************************************************/
		231
190	static AV *	232	static AV *
191	coro_clone_padlist (CV *cv)	233	coro_clone_padlist (pTHX_ CV *cv)
192	{	234	{
193	AV *padlist = CvPADLIST (cv);	235	AV *padlist = CvPADLIST (cv);
194	AV *newpadlist, *newpad;	236	AV *newpadlist, *newpad;
195		237
196	newpadlist = newAV ();	238	newpadlist = newAV ();
…		…
208		250
209	return newpadlist;	251	return newpadlist;
210	}	252	}
211		253
212	static void	254	static void
213	free_padlist (AV *padlist)	255	free_padlist (pTHX_ AV *padlist)
214	{	256	{
215	/* may be during global destruction */	257	/* may be during global destruction */
216	if (SvREFCNT (padlist))	258	if (SvREFCNT (padlist))
217	{	259	{
218	I32 i = AvFILLp (padlist);	260	I32 i = AvFILLp (padlist);
…		…
239	AV *padlist;	281	AV *padlist;
240	AV *av = (AV *)mg->mg_obj;	282	AV *av = (AV *)mg->mg_obj;
241		283
242	/* casting is fun. */	284	/* casting is fun. */
243	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	285	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
244	free_padlist (padlist);	286	free_padlist (aTHX_ padlist);
245		287
246	SvREFCNT_dec (av);	288	SvREFCNT_dec (av);
247		289
248	return 0;	290	return 0;
249	}	291	}
…		…
259	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	301	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
260	: 0	302	: 0
261		303
262	/* the next two functions merely cache the padlists */	304	/* the next two functions merely cache the padlists */
263	static void	305	static void
264	get_padlist (CV *cv)	306	get_padlist (pTHX_ CV *cv)
265	{	307	{
266	MAGIC *mg = CORO_MAGIC (cv);	308	MAGIC *mg = CORO_MAGIC (cv);
267	AV *av;	309	AV *av;
268		310
269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	311	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	312	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
271	else	313	else
272	{	314	{
273	#if PREFER_PERL_FUNCTIONS	315	#if CORO_PREFER_PERL_FUNCTIONS
274	/* this is probably cleaner, but also slower? */	316	/* this is probably cleaner, but also slower? */
275	CV *cp = Perl_cv_clone (cv);	317	CV *cp = Perl_cv_clone (cv);
276	CvPADLIST (cv) = CvPADLIST (cp);	318	CvPADLIST (cv) = CvPADLIST (cp);
277	CvPADLIST (cp) = 0;	319	CvPADLIST (cp) = 0;
278	SvREFCNT_dec (cp);	320	SvREFCNT_dec (cp);
279	#else	321	#else
280	CvPADLIST (cv) = coro_clone_padlist (cv);	322	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
281	#endif	323	#endif
282	}	324	}
283	}	325	}
284		326
285	static void	327	static void
286	put_padlist (CV *cv)	328	put_padlist (pTHX_ CV *cv)
287	{	329	{
288	MAGIC *mg = CORO_MAGIC (cv);	330	MAGIC *mg = CORO_MAGIC (cv);
289	AV *av;	331	AV *av;
290		332
291	if (!mg)	333	if (!mg)
…		…
302	av_extend (av, AvMAX (av) + 1);	344	av_extend (av, AvMAX (av) + 1);
303		345
304	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	346	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
305	}	347	}
306		348
		349	/** load & save, init *******************************************************/
		350
307	#define SB do {	351	#define SB do {
308	#define SE } while (0)	352	#define SE } while (0)
309		353
310	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	354	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
311		355
312	static void	356	static void
313	load_perl (Coro__State c)	357	load_perl (pTHX_ Coro__State c)
314	{	358	{
315	#define VAR(name,type) PL_ ## name = c->name;	359	#define VAR(name,type) PL_ ## name = c->name;
316	# include "state.h"	360	# include "state.h"
317	#undef VAR	361	#undef VAR
318		362
319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	363	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	364	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
321	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	365	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		366	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		367
322	if (c->irssv)	368	if (c->irssv)
323	{	369	{
324	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))	370	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
		371	{
325	SvREFCNT_dec (c->irssv);	372	SvREFCNT_dec (c->irssv);
		373	c->irssv = 0;
		374	}
326	else	375	else
327	{	376	{
328	REPLACE_SV (PL_rs, c->irssv);	377	REPLACE_SV (PL_rs, c->irssv);
329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	378	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
330	sv_setsv (c->irssv_sv, PL_rs);	379	sv_setsv (c->irssv_sv, PL_rs);
…		…
336	CV *cv;	385	CV *cv;
337		386
338	/* now do the ugly restore mess */	387	/* now do the ugly restore mess */
339	while ((cv = (CV *)POPs))	388	while ((cv = (CV *)POPs))
340	{	389	{
341	put_padlist (cv); /* mark this padlist as available */	390	put_padlist (aTHX_ cv); /* mark this padlist as available */
342	CvDEPTH (cv) = PTR2IV (POPs);	391	CvDEPTH (cv) = PTR2IV (POPs);
343	CvPADLIST (cv) = (AV *)POPs;	392	CvPADLIST (cv) = (AV *)POPs;
344	}	393	}
345		394
346	PUTBACK;	395	PUTBACK;
347	}	396	}
348	}	397	}
349		398
350	static void	399	static void
351	save_perl (Coro__State c)	400	save_perl (pTHX_ Coro__State c)
352	{	401	{
353	{	402	{
354	dSP;	403	dSP;
355	I32 cxix = cxstack_ix;	404	I32 cxix = cxstack_ix;
356	PERL_CONTEXT *ccstk = cxstack;	405	PERL_CONTEXT *ccstk = cxstack;
…		…
359	/*	408	/*
360	* the worst thing you can imagine happens first - we have to save	409	* the worst thing you can imagine happens first - we have to save
361	* (and reinitialize) all cv's in the whole callchain :(	410	* (and reinitialize) all cv's in the whole callchain :(
362	*/	411	*/
363		412
364	EXTEND (SP, 3 + 1);
365	PUSHs (Nullsv);	413	XPUSHs (Nullsv);
366	/* this loop was inspired by pp_caller */	414	/* this loop was inspired by pp_caller */
367	for (;;)	415	for (;;)
368	{	416	{
369	while (cxix >= 0)	417	while (cxix >= 0)
370	{	418	{
371	PERL_CONTEXT *cx = &ccstk[cxix--];	419	PERL_CONTEXT *cx = &ccstk[cxix--];
372		420
373	if (CxTYPE (cx) == CXt_SUB)	421	if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
374	{	422	{
375	CV *cv = cx->blk_sub.cv;	423	CV *cv = cx->blk_sub.cv;
376		424
377	if (CvDEPTH (cv))	425	if (CvDEPTH (cv))
378	{	426	{
…		…
380	PUSHs ((SV *)CvPADLIST (cv));	428	PUSHs ((SV *)CvPADLIST (cv));
381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	429	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
382	PUSHs ((SV *)cv);	430	PUSHs ((SV *)cv);
383		431
384	CvDEPTH (cv) = 0;	432	CvDEPTH (cv) = 0;
385	get_padlist (cv);	433	get_padlist (aTHX_ cv);
386	}	434	}
387	}	435	}
388	}	436	}
389		437
390	if (top_si->si_type == PERLSI_MAIN)	438	if (top_si->si_type == PERLSI_MAIN)
391	break;	439	break;
392		440
393	top_si = top_si->si_prev;	441	top_si = top_si->si_prev;
394	ccstk = top_si->si_cxstack;	442	ccstk = top_si->si_cxstack;
395	cxix = top_si->si_cxix;	443	cxix = top_si->si_cxix;
396	}	444	}
397		445
398	PUTBACK;	446	PUTBACK;
399	}	447	}
400		448
401	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	449	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	450	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
403	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	451	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		452	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
404	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	453	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
405		454
406	#define VAR(name,type)c->name = PL_ ## name;	455	#define VAR(name,type)c->name = PL_ ## name;
407	# include "state.h"	456	# include "state.h"
408	#undef VAR	457	#undef VAR
…		…
412	* allocate various perl stacks. This is an exact copy	461	* allocate various perl stacks. This is an exact copy
413	* of perl.c:init_stacks, except that it uses less memory	462	* of perl.c:init_stacks, except that it uses less memory
414	* on the (sometimes correct) assumption that coroutines do	463	* on the (sometimes correct) assumption that coroutines do
415	* not usually need a lot of stackspace.	464	* not usually need a lot of stackspace.
416	*/	465	*/
417	#if PREFER_PERL_FUNCTIONS	466	#if CORO_PREFER_PERL_FUNCTIONS
418	# define coro_init_stacks init_stacks	467	# define coro_init_stacks init_stacks
419	#else	468	#else
420	static void	469	static void
421	coro_init_stacks ()	470	coro_init_stacks (pTHX)
422	{	471	{
423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	472	PL_curstackinfo = new_stackinfo(64, 6);
424	PL_curstackinfo->si_type = PERLSI_MAIN;	473	PL_curstackinfo->si_type = PERLSI_MAIN;
425	PL_curstack = PL_curstackinfo->si_stack;	474	PL_curstack = PL_curstackinfo->si_stack;
426	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	475	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
427		476
428	PL_stack_base = AvARRAY(PL_curstack);	477	PL_stack_base = AvARRAY(PL_curstack);
429	PL_stack_sp = PL_stack_base;	478	PL_stack_sp = PL_stack_base;
430	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	479	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
431		480
432	New(50,PL_tmps_stack,128,SV*);	481	New(50,PL_tmps_stack,64,SV*);
433	PL_tmps_floor = -1;	482	PL_tmps_floor = -1;
434	PL_tmps_ix = -1;	483	PL_tmps_ix = -1;
435	PL_tmps_max = 128;	484	PL_tmps_max = 64;
436		485
437	New(54,PL_markstack,32,I32);	486	New(54,PL_markstack,16,I32);
438	PL_markstack_ptr = PL_markstack;	487	PL_markstack_ptr = PL_markstack;
439	PL_markstack_max = PL_markstack + 32;	488	PL_markstack_max = PL_markstack + 16;
440		489
441	#ifdef SET_MARK_OFFSET	490	#ifdef SET_MARK_OFFSET
442	SET_MARK_OFFSET;	491	SET_MARK_OFFSET;
443	#endif	492	#endif
444		493
445	New(54,PL_scopestack,32,I32);	494	New(54,PL_scopestack,16,I32);
446	PL_scopestack_ix = 0;	495	PL_scopestack_ix = 0;
447	PL_scopestack_max = 32;	496	PL_scopestack_max = 16;
448		497
449	New(54,PL_savestack,64,ANY);	498	New(54,PL_savestack,64,ANY);
450	PL_savestack_ix = 0;	499	PL_savestack_ix = 0;
451	PL_savestack_max = 64;	500	PL_savestack_max = 64;
452		501
453	#if !PERL_VERSION_ATLEAST (5,9,0)	502	#if !PERL_VERSION_ATLEAST (5,9,0)
454	New(54,PL_retstack,16,OP*);	503	New(54,PL_retstack,4,OP*);
455	PL_retstack_ix = 0;	504	PL_retstack_ix = 0;
456	PL_retstack_max = 16;	505	PL_retstack_max = 4;
457	#endif	506	#endif
458	}	507	}
459	#endif	508	#endif
460		509
461	/*	510	/*
462	* destroy the stacks, the callchain etc...	511	* destroy the stacks, the callchain etc...
463	*/	512	*/
464	static void	513	static void
465	coro_destroy_stacks ()	514	coro_destroy_stacks (pTHX)
466	{	515	{
467	if (!IN_DESTRUCT)	516	if (!IN_DESTRUCT)
468	{	517	{
469	/* restore all saved variables and stuff */	518	/* restore all saved variables and stuff */
470	LEAVE_SCOPE (0);	519	LEAVE_SCOPE (0);
…		…
472		521
473	/* free all temporaries */	522	/* free all temporaries */
474	FREETMPS;	523	FREETMPS;
475	assert (PL_tmps_ix == -1);	524	assert (PL_tmps_ix == -1);
476		525
		526	/* unwind all extra stacks */
477	POPSTACK_TO (PL_mainstack);	527	POPSTACK_TO (PL_mainstack);
		528
		529	/* unwind main stack */
		530	dounwind (-1);
478	}	531	}
479		532
480	while (PL_curstackinfo->si_next)	533	while (PL_curstackinfo->si_next)
481	PL_curstackinfo = PL_curstackinfo->si_next;	534	PL_curstackinfo = PL_curstackinfo->si_next;
482		535
…		…
499	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
500	Safefree (PL_retstack);	553	Safefree (PL_retstack);
501	#endif	554	#endif
502	}	555	}
503		556
		557	static size_t
		558	coro_rss (struct coro *coro)
		559	{
		560	size_t rss = sizeof (coro);
		561
		562	if (coro->mainstack)
		563	{
		564	if (coro->flags & CF_RUNNING)
		565	{
		566	#define VAR(name,type)coro->name = PL_ ## name;
		567	# include "state.h"
		568	#undef VAR
		569	}
		570
		571	rss += sizeof (coro->curstackinfo);
		572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		575	rss += coro->tmps_max * sizeof (SV *);
		576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		577	rss += coro->scopestack_max * sizeof (I32);
		578	rss += coro->savestack_max * sizeof (ANY);
		579
		580	#if !PERL_VERSION_ATLEAST (5,9,0)
		581	rss += coro->retstack_max * sizeof (OP *);
		582	#endif
		583	}
		584
		585	return rss;
		586	}
		587
		588	/** coroutine stack handling ************************************************/
		589
504	static void	590	static void
505	setup_coro (struct coro *coro)	591	setup_coro (pTHX_ struct coro *coro)
506	{	592	{
507	/*	593	/*
508	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
509	*/	595	*/
510
511	coro_init_stacks ();	596	coro_init_stacks (aTHX);
512		597
513	PL_curcop = &PL_compiling;	598	PL_curcop = &PL_compiling;
514	PL_in_eval = EVAL_NULL;	599	PL_in_eval = EVAL_NULL;
		600	PL_comppad = 0;
515	PL_curpm = 0;	601	PL_curpm = 0;
516	PL_localizing = 0;	602	PL_localizing = 0;
517	PL_dirty = 0;	603	PL_dirty = 0;
518	PL_restartop = 0;	604	PL_restartop = 0;
519		605
…		…
527	Zero (&myop, 1, LOGOP);	613	Zero (&myop, 1, LOGOP);
528	myop.op_next = Nullop;	614	myop.op_next = Nullop;
529	myop.op_flags = OPf_WANT_VOID;	615	myop.op_flags = OPf_WANT_VOID;
530		616
531	PUSHMARK (SP);	617	PUSHMARK (SP);
532	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	618	XPUSHs (av_shift (GvAV (PL_defgv)));
533	PUTBACK;	619	PUTBACK;
534	PL_op = (OP *)&myop;	620	PL_op = (OP *)&myop;
535	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	621	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
536	SPAGAIN;	622	SPAGAIN;
537	}	623	}
538		624
539	ENTER; /* necessary e.g. for dounwind */	625	ENTER; /* necessary e.g. for dounwind */
540	}	626	}
541		627
542	static void	628	static void
543	free_coro_mortal ()	629	free_coro_mortal (pTHX)
544	{	630	{
545	if (coro_mortal)	631	if (coro_mortal)
546	{	632	{
547	SvREFCNT_dec (coro_mortal);	633	SvREFCNT_dec (coro_mortal);
548	coro_mortal = 0;	634	coro_mortal = 0;
549	}	635	}
550	}	636	}
551		637
		638	static int
		639	runops_coro (pTHX)
		640	{
		641	COP *oldcop = 0;
		642	int oldcxix = -2;
		643
		644	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		645	{
		646	PERL_ASYNC_CHECK ();
		647
		648	if (PL_op->op_type == OP_LEAVESUB)
		649	{
		650	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		651	SV **bot, **top;
		652	AV *av = newAV (); /* return values */
		653	runops_proc_t old_runops = PL_runops;
		654	dSP;
		655	ENTER;
		656	SAVETMPS;
		657	EXTEND (SP, 3);
		658	PL_runops = RUNOPS_DEFAULT;
		659
		660	GV *gv = CvGV (cx->blk_sub.cv);
		661	SV *fullname = sv_2mortal (newSV (0));
		662	if (isGV (gv))
		663	gv_efullname3 (fullname, gv, 0);
		664
		665	bot = PL_stack_base + cx->blk_oldsp + 1;
		666	top = cx->blk_gimme == G_ARRAY ? SP + 1
		667	: cx->blk_gimme == G_SCALAR ? bot + 1
		668	: bot;
		669
		670	while (bot < top)
		671	av_push (av, SvREFCNT_inc (*bot++));
		672
		673	PUSHMARK (SP);
		674	PUSHs (&PL_sv_no);
		675	PUSHs (fullname);
		676	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		677	PUTBACK;
		678	call_pv ("Coro::_do_trace_sub", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		679	SPAGAIN;
		680
		681	FREETMPS;
		682	LEAVE;
		683	PL_runops = old_runops;
		684	}
		685
		686	if (oldcop != PL_curcop)
		687	{
		688	oldcop = PL_curcop;
		689
		690	if (PL_curcop != &PL_compiling)
		691	{
		692	runops_proc_t old_runops = PL_runops;
		693	dSP;
		694	ENTER;
		695	SAVETMPS;
		696	EXTEND (SP, 3);
		697	PL_runops = RUNOPS_DEFAULT;
		698
		699	if (oldcxix != cxstack_ix)
		700	{
		701	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		702
		703	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		704	{
		705	GV *gv = CvGV (cx->blk_sub.cv);
		706	SV *fullname = sv_2mortal (newSV (0));
		707	if (isGV (gv))
		708	gv_efullname3 (fullname, gv, 0);
		709
		710	PUSHMARK (SP);
		711	PUSHs (&PL_sv_yes);
		712	PUSHs (fullname);
		713	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		714	PUTBACK;
		715	call_pv ("Coro::_do_trace_sub", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		716	SPAGAIN;
		717	}
		718
		719	oldcxix = cxstack_ix;
		720	}
		721
		722	if (0) {
		723	PUSHMARK (SP);
		724	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		725	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		726	PUTBACK;
		727	call_pv ("Coro::_do_trace_line", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		728	SPAGAIN;
		729	}
		730
		731	FREETMPS;
		732	LEAVE;
		733	PL_runops = old_runops;
		734	}
		735	}
		736	}
		737
		738	TAINT_NOT;
		739	return 0;
		740	}
		741
552	/* inject a fake call to Coro::State::_cctx_init into the execution */	742	/* inject a fake call to Coro::State::_cctx_init into the execution */
		743	/* _cctx_init should be careful, as it could be called at almost any time */
		744	/* during execution of a perl program */
553	static void NOINLINE	745	static void NOINLINE
554	prepare_cctx (coro_cctx *cctx)	746	prepare_cctx (pTHX_ coro_cctx *cctx)
555	{	747	{
556	dSP;	748	dSP;
557	LOGOP myop;	749	LOGOP myop;
		750
		751	PL_top_env = &PL_start_env;
		752
		753	if (cctx->flags & CC_TRACE)
		754	PL_runops = runops_coro;
558		755
559	Zero (&myop, 1, LOGOP);	756	Zero (&myop, 1, LOGOP);
560	myop.op_next = PL_op;	757	myop.op_next = PL_op;
561	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	758	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
562		759
…		…
568	PL_op = (OP *)&myop;	765	PL_op = (OP *)&myop;
569	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	766	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
570	SPAGAIN;	767	SPAGAIN;
571	}	768	}
572		769
		770	/*
		771	* this is a _very_ stripped down perl interpreter ;)
		772	*/
573	static void	773	static void
574	coro_run (void *arg)	774	coro_run (void *arg)
575	{	775	{
		776	dTHX;
		777
576	/* coro_run is the alternative tail of transfer(), so unlock here. */	778	/* coro_run is the alternative tail of transfer(), so unlock here. */
577	UNLOCK;	779	UNLOCK;
578		780
579	/*	781	/* we now skip the entersub that lead to transfer() */
580	* this is a _very_ stripped down perl interpreter ;)	782	PL_op = PL_op->op_next;
581	*/
582	PL_top_env = &PL_start_env;
583		783
584	/* inject call to cctx_init */	784	/* inject a fake subroutine call to cctx_init */
585	prepare_cctx ((coro_cctx *)arg);	785	prepare_cctx (aTHX_ (coro_cctx *)arg);
586		786
587	/* somebody will hit me for both perl_run and PL_restartop */	787	/* somebody or something will hit me for both perl_run and PL_restartop */
588	PL_restartop = PL_op;	788	PL_restartop = PL_op;
589	perl_run (PL_curinterp);	789	perl_run (PL_curinterp);
590		790
591	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	791	/*
592	abort ();	792	* If perl-run returns we assume exit() was being called or the coro
		793	* fell off the end, which seems to be the only valid (non-bug)
		794	* reason for perl_run to return. We try to exit by jumping to the
		795	* bootstrap-time "top" top_env, as we cannot restore the "main"
		796	* coroutine as Coro has no such concept
		797	*/
		798	PL_top_env = main_top_env;
		799	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
593	}	800	}
594		801
595	static coro_cctx *	802	static coro_cctx *
596	cctx_new ()	803	cctx_new ()
597	{	804	{
598	coro_cctx *cctx;	805	coro_cctx *cctx;
		806	void *stack_start;
		807	size_t stack_size;
599		808
600	++cctx_count;	809	++cctx_count;
601		810
602	Newz (0, cctx, 1, coro_cctx);	811	Newz (0, cctx, 1, coro_cctx);
603		812
604	#if HAVE_MMAP	813	#if HAVE_MMAP
605		814
606	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	815	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
607	/* mmap supposedly does allocate-on-write for us */	816	/* mmap supposedly does allocate-on-write for us */
608	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);	817	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
609		818
610	if (cctx->sptr == (void *)-1)	819	if (cctx->sptr != (void *)-1)
611	{
612	perror ("FATAL: unable to mmap stack for coroutine");
613	_exit (EXIT_FAILURE);
614	}	820	{
615
616	# if STACKGUARD	821	# if CORO_STACKGUARD
617	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	822	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
618	# endif	823	# endif
		824	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		825	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		826	cctx->flags |= CC_MAPPED;
		827	}
		828	else
		829	#endif
		830	{
		831	cctx->ssize = coro_stacksize * (long)sizeof (long);
		832	New (0, cctx->sptr, coro_stacksize, long);
619		833
620	#else
621
622	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, cctx->sptr, STACKSIZE, long);
624
625	if (!cctx->sptr)	834	if (!cctx->sptr)
626	{	835	{
627	perror ("FATAL: unable to malloc stack for coroutine");	836	perror ("FATAL: unable to allocate stack for coroutine");
628	_exit (EXIT_FAILURE);	837	_exit (EXIT_FAILURE);
629	}	838	}
630		839
631	#endif	840	stack_start = cctx->sptr;
		841	stack_size = cctx->ssize;
		842	}
632		843
633	#if USE_VALGRIND	844	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
634	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
635	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
636	cctx->ssize + (char *)cctx->sptr
637	);
638	#endif
639
640	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	845	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
641		846
642	return cctx;	847	return cctx;
643	}	848	}
644		849
645	static void	850	static void
…		…
648	if (!cctx)	853	if (!cctx)
649	return;	854	return;
650		855
651	--cctx_count;	856	--cctx_count;
652		857
653	#if USE_VALGRIND	858	#if CORO_USE_VALGRIND
654	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	859	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
655	#endif	860	#endif
656		861
657	#if HAVE_MMAP	862	#if HAVE_MMAP
		863	if (cctx->flags & CC_MAPPED)
658	munmap (cctx->sptr, cctx->ssize);	864	munmap (cctx->sptr, cctx->ssize);
659	#else	865	else
		866	#endif
660	Safefree (cctx->sptr);	867	Safefree (cctx->sptr);
661	#endif
662		868
663	Safefree (cctx);	869	Safefree (cctx);
664	}	870	}
665		871
666	static coro_cctx *	872	static coro_cctx *
667	cctx_get ()	873	cctx_get (pTHX)
668	{	874	{
669	coro_cctx *cctx;
670
671	if (cctx_first)	875	while (cctx_first)
672	{	876	{
673	cctx = cctx_first;	877	coro_cctx *cctx = cctx_first;
674	cctx_first = cctx->next;	878	cctx_first = cctx->next;
675	--cctx_idle;	879	--cctx_idle;
676	}	880
677	else	881	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
678	{	882	return cctx;
679	cctx = cctx_new ();	883
680	PL_op = PL_op->op_next;	884	cctx_destroy (cctx);
681	}	885	}
682		886
683	return cctx;	887	return cctx_new ();
684	}	888	}
685		889
686	static void	890	static void
687	cctx_put (coro_cctx *cctx)	891	cctx_put (coro_cctx *cctx)
688	{	892	{
…		…
691	{	895	{
692	coro_cctx *first = cctx_first;	896	coro_cctx *first = cctx_first;
693	cctx_first = first->next;	897	cctx_first = first->next;
694	--cctx_idle;	898	--cctx_idle;
695		899
696	assert (!first->inuse);
697	cctx_destroy (first);	900	cctx_destroy (first);
698	}	901	}
699		902
700	++cctx_idle;	903	++cctx_idle;
701	cctx->next = cctx_first;	904	cctx->next = cctx_first;
702	cctx_first = cctx;	905	cctx_first = cctx;
703	}	906	}
704		907
		908	/** coroutine switching *****************************************************/
		909
705	/* never call directly, always through the coro_state_transfer global variable */	910	/* never call directly, always through the coro_state_transfer global variable */
706	static void NOINLINE	911	static void NOINLINE
707	transfer (struct coro *prev, struct coro *next)	912	transfer (pTHX_ struct coro *prev, struct coro *next)
708	{	913	{
709	dSTACKLEVEL;	914	dSTACKLEVEL;
710		915
711	/* sometimes transfer is only called to set idle_sp */	916	/* sometimes transfer is only called to set idle_sp */
712	if (!next)	917	if (!next)
…		…
720		925
721	if (prev->flags & CF_NEW)	926	if (prev->flags & CF_NEW)
722	{	927	{
723	/* create a new empty context */	928	/* create a new empty context */
724	Newz (0, prev->cctx, 1, coro_cctx);	929	Newz (0, prev->cctx, 1, coro_cctx);
725	prev->cctx->inuse = 1;
726	prev->flags &= ~CF_NEW;	930	prev->flags &= ~CF_NEW;
727	prev->flags |= CF_RUNNING;	931	prev->flags |= CF_RUNNING;
728	}	932	}
729		933
730	/*TODO: must not croak here */	934	/*TODO: must not croak here */
…		…
745	if (next->flags & CF_NEW)	949	if (next->flags & CF_NEW)
746	{	950	{
747	/* need to start coroutine */	951	/* need to start coroutine */
748	next->flags &= ~CF_NEW;	952	next->flags &= ~CF_NEW;
749	/* first get rid of the old state */	953	/* first get rid of the old state */
750	save_perl (prev);	954	save_perl (aTHX_ prev);
751	/* setup coroutine call */	955	/* setup coroutine call */
752	setup_coro (next);	956	setup_coro (aTHX_ next);
753	/* need a new stack */
754	assert (!next->cctx);
755	}	957	}
756	else	958	else
757	{	959	{
758	/* coroutine already started */	960	/* coroutine already started */
759	save_perl (prev);	961	save_perl (aTHX_ prev);
760	load_perl (next);	962	load_perl (aTHX_ next);
761	}	963	}
762		964
763	prev__cctx = prev->cctx;	965	prev__cctx = prev->cctx;
764		966
765	/* possibly "free" the cctx */	967	/* possibly "free" the cctx */
766	if (prev__cctx->idle_sp == STACKLEVEL)	968	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
767	{	969	{
768	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	970	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
769	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	971	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
770		972
771	prev->cctx = 0;	973	prev->cctx = 0;
772		974
773	cctx_put (prev__cctx);	975	cctx_put (prev__cctx);
774	prev__cctx->inuse = 0;
775	}	976	}
776		977
777	if (!next->cctx)	978	if (!next->cctx)
778	{
779	next->cctx = cctx_get ();	979	next->cctx = cctx_get (aTHX);
780	assert (!next->cctx->inuse);
781	next->cctx->inuse = 1;
782	}
783		980
784	if (prev__cctx != next->cctx)	981	if (prev__cctx != next->cctx)
785	{	982	{
786	prev__cctx->top_env = PL_top_env;	983	prev__cctx->top_env = PL_top_env;
787	PL_top_env = next->cctx->top_env;	984	PL_top_env = next->cctx->top_env;
788	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	985	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
789	}	986	}
790		987
791	free_coro_mortal ();	988	free_coro_mortal (aTHX);
792	UNLOCK;	989	UNLOCK;
793	}	990	}
794	}	991	}
795		992
796	struct transfer_args	993	struct transfer_args
797	{	994	{
798	struct coro *prev, *next;	995	struct coro *prev, *next;
799	};	996	};
800		997
801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	998	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		999
		1000	/** high level stuff ********************************************************/
802		1001
803	static int	1002	static int
804	coro_state_destroy (struct coro *coro)	1003	coro_state_destroy (pTHX_ struct coro *coro)
805	{	1004	{
806	if (coro->refcnt--)
807	return 0;
808
809	if (coro->flags & CF_DESTROYED)	1005	if (coro->flags & CF_DESTROYED)
810	return 0;	1006	return 0;
811		1007
812	coro->flags |= CF_DESTROYED;	1008	coro->flags |= CF_DESTROYED;
		1009
		1010	if (coro->flags & CF_READY)
		1011	{
		1012	/* reduce nready, as destroying a ready coro effectively unreadies it */
		1013	/* alternative: look through all ready queues and remove the coro */
		1014	LOCK;
		1015	--coro_nready;
		1016	UNLOCK;
		1017	}
		1018	else
		1019	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
813		1020
814	if (coro->mainstack && coro->mainstack != main_mainstack)	1021	if (coro->mainstack && coro->mainstack != main_mainstack)
815	{	1022	{
		1023	struct coro temp;
		1024
816	assert (!(coro->flags & CF_RUNNING));	1025	assert (!(coro->flags & CF_RUNNING));
817		1026
818	struct coro temp;
819	Zero (&temp, 1, struct coro);	1027	Zero (&temp, 1, struct coro);
820	temp.save = CORO_SAVE_ALL;	1028	temp.save = CORO_SAVE_ALL;
821		1029
822	if (coro->flags & CF_RUNNING)	1030	if (coro->flags & CF_RUNNING)
823	croak ("FATAL: tried to destroy currently running coroutine");	1031	croak ("FATAL: tried to destroy currently running coroutine");
824		1032
825	save_perl (&temp);	1033	save_perl (aTHX_ &temp);
826	load_perl (coro);	1034	load_perl (aTHX_ coro);
827		1035
828	coro_destroy_stacks ();	1036	coro_destroy_stacks (aTHX);
829		1037
830	load_perl (&temp); /* this will get rid of defsv etc.. */	1038	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
831		1039
832	coro->mainstack = 0;	1040	coro->mainstack = 0;
833	}	1041	}
834		1042
835	cctx_destroy (coro->cctx);	1043	cctx_destroy (coro->cctx);
836	SvREFCNT_dec (coro->args);	1044	SvREFCNT_dec (coro->args);
837		1045
		1046	if (coro->next) coro->next->prev = coro->prev;
		1047	if (coro->prev) coro->prev->next = coro->next;
		1048	if (coro == coro_first) coro_first = coro->next;
		1049
838	return 1;	1050	return 1;
839	}	1051	}
840		1052
841	static int	1053	static int
842	coro_state_clear (pTHX_ SV *sv, MAGIC *mg)	1054	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
843	{	1055	{
844	struct coro *coro = (struct coro *)mg->mg_ptr;	1056	struct coro *coro = (struct coro *)mg->mg_ptr;
845	mg->mg_ptr = 0;	1057	mg->mg_ptr = 0;
846		1058
		1059	coro->hv = 0;
		1060
		1061	if (--coro->refcnt < 0)
		1062	{
847	coro_state_destroy (coro);	1063	coro_state_destroy (aTHX_ coro);
848
849	if (!coro->refcnt)
850	Safefree (coro);	1064	Safefree (coro);
		1065	}
851		1066
852	return 0;	1067	return 0;
853	}	1068	}
854		1069
855	static int	1070	static int
…		…
862	return 0;	1077	return 0;
863	}	1078	}
864		1079
865	static MGVTBL coro_state_vtbl = {	1080	static MGVTBL coro_state_vtbl = {
866	0, 0, 0, 0,	1081	0, 0, 0, 0,
867	coro_state_clear,	1082	coro_state_free,
868	0,	1083	0,
869	#ifdef MGf_DUP	1084	#ifdef MGf_DUP
870	coro_state_dup,	1085	coro_state_dup,
871	#else	1086	#else
872	# define MGf_DUP 0	1087	# define MGf_DUP 0
873	#endif	1088	#endif
874	};	1089	};
875		1090
876	static struct coro *	1091	static struct coro *
877	SvSTATE (SV *coro)	1092	SvSTATE_ (pTHX_ SV *coro)
878	{	1093	{
879	HV *stash;	1094	HV *stash;
880	MAGIC *mg;	1095	MAGIC *mg;
881		1096
882	if (SvROK (coro))	1097	if (SvROK (coro))
…		…
888	/* very slow, but rare, check */	1103	/* very slow, but rare, check */
889	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	1104	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
890	croak ("Coro::State object required");	1105	croak ("Coro::State object required");
891	}	1106	}
892		1107
893	mg = SvMAGIC (coro);	1108	mg = CORO_MAGIC (coro);
894	assert (mg->mg_type == PERL_MAGIC_ext);
895	return (struct coro *)mg->mg_ptr;	1109	return (struct coro *)mg->mg_ptr;
896	}	1110	}
897		1111
		1112	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1113
898	static void	1114	static void
899	prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv)	1115	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
900	{	1116	{
901	ta->prev = SvSTATE (prev_sv);	1117	ta->prev = SvSTATE (prev_sv);
902	ta->next = SvSTATE (next_sv);	1118	ta->next = SvSTATE (next_sv);
903	}	1119	}
904		1120
905	static void	1121	static void
906	api_transfer (SV *prev_sv, SV *next_sv)	1122	api_transfer (SV *prev_sv, SV *next_sv)
907	{	1123	{
		1124	dTHX;
908	struct transfer_args ta;	1125	struct transfer_args ta;
909		1126
910	prepare_transfer (&ta, prev_sv, next_sv);	1127	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
911	TRANSFER (ta);	1128	TRANSFER (ta);
912	}	1129	}
913		1130
914	static int	1131	static int
915	api_save (SV *coro_sv, int new_save)	1132	api_save (SV *coro_sv, int new_save)
916	{	1133	{
		1134	dTHX;
917	struct coro *coro = SvSTATE (coro_sv);	1135	struct coro *coro = SvSTATE (coro_sv);
918	int old_save = coro->save;	1136	int old_save = coro->save;
919		1137
920	if (new_save >= 0)	1138	if (new_save >= 0)
921	coro->save = new_save;	1139	coro->save = new_save;
…		…
923	return old_save;	1141	return old_save;
924	}	1142	}
925		1143
926	/** Coro ********************************************************************/	1144	/** Coro ********************************************************************/
927		1145
928	#define PRIO_MAX 3
929	#define PRIO_HIGH 1
930	#define PRIO_NORMAL 0
931	#define PRIO_LOW -1
932	#define PRIO_IDLE -3
933	#define PRIO_MIN -4
934
935	/* for Coro.pm */
936	static SV *coro_current;
937	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
938	static int coro_nready;
939
940	static void	1146	static void
941	coro_enq (SV *coro_sv)	1147	coro_enq (pTHX_ SV *coro_sv)
942	{	1148	{
943	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1149	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
944	coro_nready++;
945	}	1150	}
946		1151
947	static SV *	1152	static SV *
948	coro_deq (int min_prio)	1153	coro_deq (pTHX_ int min_prio)
949	{	1154	{
950	int prio = PRIO_MAX - PRIO_MIN;	1155	int prio = PRIO_MAX - PRIO_MIN;
951		1156
952	min_prio -= PRIO_MIN;	1157	min_prio -= PRIO_MIN;
953	if (min_prio < 0)	1158	if (min_prio < 0)
954	min_prio = 0;	1159	min_prio = 0;
955		1160
956	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1161	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
957	if (AvFILLp (coro_ready [prio]) >= 0)	1162	if (AvFILLp (coro_ready [prio]) >= 0)
958	{
959	coro_nready--;
960	return av_shift (coro_ready [prio]);	1163	return av_shift (coro_ready [prio]);
961	}
962		1164
963	return 0;	1165	return 0;
964	}	1166	}
965		1167
966	static int	1168	static int
967	api_ready (SV *coro_sv)	1169	api_ready (SV *coro_sv)
968	{	1170	{
		1171	dTHX;
969	struct coro *coro;	1172	struct coro *coro;
970		1173
971	if (SvROK (coro_sv))	1174	if (SvROK (coro_sv))
972	coro_sv = SvRV (coro_sv);	1175	coro_sv = SvRV (coro_sv);
973		1176
…		…
977	return 0;	1180	return 0;
978		1181
979	coro->flags |= CF_READY;	1182	coro->flags |= CF_READY;
980		1183
981	LOCK;	1184	LOCK;
982	coro_enq (SvREFCNT_inc (coro_sv));	1185	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1186	++coro_nready;
983	UNLOCK;	1187	UNLOCK;
984		1188
985	return 1;	1189	return 1;
986	}	1190	}
987		1191
988	static int	1192	static int
989	api_is_ready (SV *coro_sv)	1193	api_is_ready (SV *coro_sv)
990	{	1194	{
		1195	dTHX;
991	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1196	return !!(SvSTATE (coro_sv)->flags & CF_READY);
992	}	1197	}
993		1198
994	static void	1199	static void
995	prepare_schedule (struct transfer_args *ta)	1200	prepare_schedule (pTHX_ struct transfer_args *ta)
996	{	1201	{
997	SV *prev_sv, *next_sv;	1202	SV *prev_sv, *next_sv;
998		1203
999	for (;;)	1204	for (;;)
1000	{	1205	{
1001	LOCK;	1206	LOCK;
1002	next_sv = coro_deq (PRIO_MIN);	1207	next_sv = coro_deq (aTHX_ PRIO_MIN);
1003	UNLOCK;
1004		1208
1005	/* nothing to schedule: call the idle handler */	1209	/* nothing to schedule: call the idle handler */
1006	if (!next_sv)	1210	if (!next_sv)
1007	{	1211	{
1008	dSP;	1212	dSP;
		1213	UNLOCK;
1009		1214
1010	ENTER;	1215	ENTER;
1011	SAVETMPS;	1216	SAVETMPS;
1012		1217
1013	PUSHMARK (SP);	1218	PUSHMARK (SP);
…		…
1022	ta->next = SvSTATE (next_sv);	1227	ta->next = SvSTATE (next_sv);
1023		1228
1024	/* cannot transfer to destroyed coros, skip and look for next */	1229	/* cannot transfer to destroyed coros, skip and look for next */
1025	if (ta->next->flags & CF_DESTROYED)	1230	if (ta->next->flags & CF_DESTROYED)
1026	{	1231	{
		1232	UNLOCK;
1027	SvREFCNT_dec (next_sv);	1233	SvREFCNT_dec (next_sv);
		1234	/* coro_nready is already taken care of by destroy */
1028	continue;	1235	continue;
1029	}	1236	}
1030		1237
		1238	--coro_nready;
		1239	UNLOCK;
1031	break;	1240	break;
1032	}	1241	}
1033		1242
1034	/* free this only after the transfer */	1243	/* free this only after the transfer */
1035	prev_sv = SvRV (coro_current);	1244	prev_sv = SvRV (coro_current);
…		…
1038		1247
1039	assert (ta->next->flags & CF_READY);	1248	assert (ta->next->flags & CF_READY);
1040	ta->next->flags &= ~CF_READY;	1249	ta->next->flags &= ~CF_READY;
1041		1250
1042	LOCK;	1251	LOCK;
1043	free_coro_mortal ();	1252	free_coro_mortal (aTHX);
1044	coro_mortal = prev_sv;	1253	coro_mortal = prev_sv;
1045	UNLOCK;	1254	UNLOCK;
1046	}	1255	}
1047		1256
1048	static void	1257	static void
1049	prepare_cede (struct transfer_args *ta)	1258	prepare_cede (pTHX_ struct transfer_args *ta)
1050	{	1259	{
1051	api_ready (coro_current);	1260	api_ready (coro_current);
1052	prepare_schedule (ta);	1261	prepare_schedule (aTHX_ ta);
1053	}	1262	}
1054		1263
1055	static int	1264	static int
1056	prepare_cede_notself (struct transfer_args *ta)	1265	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1057	{	1266	{
1058	if (coro_nready)	1267	if (coro_nready)
1059	{	1268	{
1060	SV *prev = SvRV (coro_current);	1269	SV *prev = SvRV (coro_current);
1061	prepare_schedule (ta);	1270	prepare_schedule (aTHX_ ta);
1062	api_ready (prev);	1271	api_ready (prev);
1063	return 1;	1272	return 1;
1064	}	1273	}
1065	else	1274	else
1066	return 0;	1275	return 0;
1067	}	1276	}
1068		1277
1069	static void	1278	static void
1070	api_schedule (void)	1279	api_schedule (void)
1071	{	1280	{
		1281	dTHX;
1072	struct transfer_args ta;	1282	struct transfer_args ta;
1073		1283
1074	prepare_schedule (&ta);	1284	prepare_schedule (aTHX_ &ta);
1075	TRANSFER (ta);	1285	TRANSFER (ta);
1076	}	1286	}
1077		1287
1078	static int	1288	static int
1079	api_cede (void)	1289	api_cede (void)
1080	{	1290	{
		1291	dTHX;
1081	struct transfer_args ta;	1292	struct transfer_args ta;
1082		1293
1083	prepare_cede (&ta);	1294	prepare_cede (aTHX_ &ta);
1084		1295
1085	if (ta.prev != ta.next)	1296	if (ta.prev != ta.next)
1086	{	1297	{
1087	TRANSFER (ta);	1298	TRANSFER (ta);
1088	return 1;	1299	return 1;
…		…
1092	}	1303	}
1093		1304
1094	static int	1305	static int
1095	api_cede_notself (void)	1306	api_cede_notself (void)
1096	{	1307	{
		1308	dTHX;
1097	struct transfer_args ta;	1309	struct transfer_args ta;
1098		1310
1099	if (prepare_cede_notself (&ta))	1311	if (prepare_cede_notself (aTHX_ &ta))
1100	{	1312	{
1101	TRANSFER (ta);	1313	TRANSFER (ta);
1102	return 1;	1314	return 1;
1103	}	1315	}
1104	else	1316	else
…		…
1115	MUTEX_INIT (&coro_mutex);	1327	MUTEX_INIT (&coro_mutex);
1116	#endif	1328	#endif
1117	BOOT_PAGESIZE;	1329	BOOT_PAGESIZE;
1118		1330
1119	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1331	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1332
		1333	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1334	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1335	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1336	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1120		1337
1121	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1338	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1122	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1339	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1123	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1340	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1124	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1341	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1342	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1343	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1125	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1344	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1126		1345
1127	main_mainstack = PL_mainstack;	1346	main_mainstack = PL_mainstack;
		1347	main_top_env = PL_top_env;
		1348
		1349	while (main_top_env->je_prev)
		1350	main_top_env = main_top_env->je_prev;
1128		1351
1129	coroapi.ver = CORO_API_VERSION;	1352	coroapi.ver = CORO_API_VERSION;
1130	coroapi.transfer = api_transfer;	1353	coroapi.transfer = api_transfer;
1131		1354
1132	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1355	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1140	HV *hv;	1363	HV *hv;
1141	int i;	1364	int i;
1142		1365
1143	Newz (0, coro, 1, struct coro);	1366	Newz (0, coro, 1, struct coro);
1144	coro->args = newAV ();	1367	coro->args = newAV ();
1145	coro->save = CORO_SAVE_ALL;	1368	coro->save = CORO_SAVE_DEF;
1146	coro->flags = CF_NEW;	1369	coro->flags = CF_NEW;
1147		1370
		1371	if (coro_first) coro_first->prev = coro;
		1372	coro->next = coro_first;
		1373	coro_first = coro;
		1374
1148	hv = newHV ();	1375	coro->hv = hv = newHV ();
1149	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1376	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1150	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1377	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1151		1378
1152	for (i = 1; i < items; i++)	1379	for (i = 1; i < items; i++)
1153	av_push (coro->args, newSVsv (ST (i)));	1380	av_push (coro->args, newSVsv (ST (i)));
…		…
1157		1384
1158	int	1385	int
1159	save (SV *coro, int new_save = -1)	1386	save (SV *coro, int new_save = -1)
1160	CODE:	1387	CODE:
1161	RETVAL = api_save (coro, new_save);	1388	RETVAL = api_save (coro, new_save);
		1389	OUTPUT:
		1390	RETVAL
		1391
		1392	int
		1393	save_also (SV *coro_sv, int save_also)
		1394	CODE:
		1395	{
		1396	struct coro *coro = SvSTATE (coro_sv);
		1397	RETVAL = coro->save;
		1398	coro->save |= save_also;
		1399	}
1162	OUTPUT:	1400	OUTPUT:
1163	RETVAL	1401	RETVAL
1164		1402
1165	void	1403	void
1166	_set_stacklevel (...)	1404	_set_stacklevel (...)
…		…
1182		1420
1183	case 1:	1421	case 1:
1184	if (items != 2)	1422	if (items != 2)
1185	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1423	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1186		1424
1187	prepare_transfer (&ta, ST (0), ST (1));	1425	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1188	break;	1426	break;
1189		1427
1190	case 2:	1428	case 2:
1191	prepare_schedule (&ta);	1429	prepare_schedule (aTHX_ &ta);
1192	break;	1430	break;
1193		1431
1194	case 3:	1432	case 3:
1195	prepare_cede (&ta);	1433	prepare_cede (aTHX_ &ta);
1196	break;	1434	break;
1197		1435
1198	case 4:	1436	case 4:
1199	if (!prepare_cede_notself (&ta))	1437	if (!prepare_cede_notself (aTHX_ &ta))
1200	XSRETURN_EMPTY;	1438	XSRETURN_EMPTY;
1201		1439
1202	break;	1440	break;
1203	}	1441	}
1204		1442
1205	BARRIER;	1443	BARRIER;
1206	TRANSFER (ta);	1444	TRANSFER (ta);
		1445
		1446	if (GIMME_V != G_VOID && ta.next != ta.prev)
		1447	XSRETURN_YES;
1207	}	1448	}
1208		1449
1209	bool	1450	bool
1210	_destroy (SV *coro_sv)	1451	_destroy (SV *coro_sv)
1211	CODE:	1452	CODE:
1212	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1453	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1213	OUTPUT:	1454	OUTPUT:
1214	RETVAL	1455	RETVAL
1215		1456
1216	void	1457	void
1217	_exit (code)	1458	_exit (code)
…		…
1219	PROTOTYPE: $	1460	PROTOTYPE: $
1220	CODE:	1461	CODE:
1221	_exit (code);	1462	_exit (code);
1222		1463
1223	int	1464	int
		1465	cctx_stacksize (int new_stacksize = 0)
		1466	CODE:
		1467	RETVAL = coro_stacksize;
		1468	if (new_stacksize)
		1469	coro_stacksize = new_stacksize;
		1470	OUTPUT:
		1471	RETVAL
		1472
		1473	int
1224	cctx_count ()	1474	cctx_count ()
1225	CODE:	1475	CODE:
1226	RETVAL = cctx_count;	1476	RETVAL = cctx_count;
1227	OUTPUT:	1477	OUTPUT:
1228	RETVAL	1478	RETVAL
…		…
1232	CODE:	1482	CODE:
1233	RETVAL = cctx_idle;	1483	RETVAL = cctx_idle;
1234	OUTPUT:	1484	OUTPUT:
1235	RETVAL	1485	RETVAL
1236		1486
		1487	void
		1488	list ()
		1489	PPCODE:
		1490	{
		1491	struct coro *coro;
		1492	for (coro = coro_first; coro; coro = coro->next)
		1493	if (coro->hv)
		1494	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1495	}
		1496
		1497	void
		1498	call (Coro::State coro, SV *coderef)
		1499	ALIAS:
		1500	eval = 1
		1501	CODE:
		1502	{
		1503	if (coro->mainstack)
		1504	{
		1505	struct coro temp;
		1506	Zero (&temp, 1, struct coro);
		1507	temp.save = CORO_SAVE_ALL;
		1508
		1509	if (!(coro->flags & CF_RUNNING))
		1510	{
		1511	save_perl (aTHX_ &temp);
		1512	load_perl (aTHX_ coro);
		1513	}
		1514
		1515	{
		1516	dSP;
		1517	ENTER;
		1518	SAVETMPS;
		1519	PUSHMARK (SP);
		1520	PUTBACK;
		1521	if (ix)
		1522	eval_sv (coderef, 0);
		1523	else
		1524	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1525	SPAGAIN;
		1526	FREETMPS;
		1527	LEAVE;
		1528	PUTBACK;
		1529	}
		1530
		1531	if (!(coro->flags & CF_RUNNING))
		1532	{
		1533	save_perl (aTHX_ coro);
		1534	load_perl (aTHX_ &temp);
		1535	}
		1536	}
		1537	}
		1538
		1539	SV *
		1540	is_ready (Coro::State coro)
		1541	PROTOTYPE: $
		1542	ALIAS:
		1543	is_ready = CF_READY
		1544	is_running = CF_RUNNING
		1545	is_new = CF_NEW
		1546	is_destroyed = CF_DESTROYED
		1547	CODE:
		1548	RETVAL = boolSV (coro->flags & ix);
		1549	OUTPUT:
		1550	RETVAL
		1551
		1552	void
		1553	trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB)
		1554	CODE:
		1555	if (flags & CC_TRACE)
		1556	{
		1557	if (!coro->cctx)
		1558	coro->cctx = cctx_new ();
		1559	else if (!(coro->cctx->flags & CC_TRACE))
		1560	croak ("cannot enable tracing on coroutine with custom stack");
		1561
		1562	coro->cctx->flags |= flags & (CC_TRACE | CC_TRACE_ALL);
		1563	}
		1564	else
		1565	if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1566	{
		1567	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
		1568	coro->cctx->flags |= CC_NOREUSE;
		1569
		1570	if (coro->flags & CF_RUNNING)
		1571	PL_runops = RUNOPS_DEFAULT;
		1572	else
		1573	coro->runops = RUNOPS_DEFAULT;
		1574	}
		1575
		1576	SV *
		1577	has_stack (Coro::State coro)
		1578	PROTOTYPE: $
		1579	CODE:
		1580	RETVAL = boolSV (!!coro->cctx);
		1581	OUTPUT:
		1582	RETVAL
		1583
		1584	int
		1585	is_traced (Coro::State coro)
		1586	PROTOTYPE: $
		1587	CODE:
		1588	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	IV
		1593	rss (Coro::State coro)
		1594	PROTOTYPE: $
		1595	CODE:
		1596	RETVAL = coro_rss (coro);
		1597	OUTPUT:
		1598	RETVAL
		1599
		1600
1237	MODULE = Coro::State PACKAGE = Coro	1601	MODULE = Coro::State PACKAGE = Coro
1238		1602
1239	BOOT:	1603	BOOT:
1240	{	1604	{
1241	int i;	1605	int i;
		1606
		1607	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1608	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1609	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1610
		1611	coro_current = get_sv ("Coro::current", FALSE);
		1612	SvREADONLY_on (coro_current);
1242		1613
1243	coro_stash = gv_stashpv ("Coro", TRUE);	1614	coro_stash = gv_stashpv ("Coro", TRUE);
1244		1615
1245	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1616	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1246	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1617	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1247	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1618	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1248	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1619	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1249	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1620	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1250	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1621	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1251
1252	coro_current = get_sv ("Coro::current", FALSE);
1253	SvREADONLY_on (coro_current);
1254		1622
1255	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1623	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1256	coro_ready[i] = newAV ();	1624	coro_ready[i] = newAV ();
1257		1625
1258	{	1626	{
…		…
1308	CODE:	1676	CODE:
1309	RETVAL = boolSV (api_ready (self));	1677	RETVAL = boolSV (api_ready (self));
1310	OUTPUT:	1678	OUTPUT:
1311	RETVAL	1679	RETVAL
1312		1680
1313	SV *
1314	is_ready (SV *self)
1315	PROTOTYPE: $
1316	CODE:
1317	RETVAL = boolSV (api_is_ready (self));
1318	OUTPUT:
1319	RETVAL
1320
1321	int	1681	int
1322	nready (...)	1682	nready (...)
1323	PROTOTYPE:	1683	PROTOTYPE:
1324	CODE:	1684	CODE:
1325	RETVAL = coro_nready;	1685	RETVAL = coro_nready;
1326	OUTPUT:	1686	OUTPUT:
1327	RETVAL	1687	RETVAL
1328		1688
		1689	# for async_pool speedup
		1690	void
		1691	_pool_1 (SV *cb)
		1692	CODE:
		1693	{
		1694	int i, len;
		1695	HV *hv = (HV *)SvRV (coro_current);
		1696	AV *defav = GvAV (PL_defgv);
		1697	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1698	AV *invoke_av;
		1699
		1700	if (!invoke)
		1701	croak ("\3terminate\2\n");
		1702
		1703	hv_store (hv, "desc", sizeof ("desc") - 1,
		1704	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1705
		1706	invoke_av = (AV *)SvRV (invoke);
		1707	len = av_len (invoke_av);
		1708
		1709	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1710
		1711	if (len > 0)
		1712	{
		1713	av_fill (defav, len - 1);
		1714	for (i = 0; i < len; ++i)
		1715	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1716	}
		1717
		1718	SvREFCNT_dec (invoke);
		1719	}
		1720
		1721	void
		1722	_pool_2 (SV *cb)
		1723	CODE:
		1724	{
		1725	struct coro *coro = SvSTATE (coro_current);
		1726
		1727	sv_setsv (cb, &PL_sv_undef);
		1728
		1729	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1730	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1731	croak ("\3terminate\2\n");
		1732
		1733	av_clear (GvAV (PL_defgv));
		1734	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1735	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1736	coro->save = CORO_SAVE_DEF;
		1737	coro->prio = 0;
		1738	av_push (av_async_pool, newSVsv (coro_current));
		1739	}
		1740
		1741
1329	MODULE = Coro::State PACKAGE = Coro::AIO	1742	MODULE = Coro::State PACKAGE = Coro::AIO
1330		1743
1331	SV *	1744	SV *
1332	_get_state ()	1745	_get_state ()
1333	CODE:	1746	CODE:

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