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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs.
Revision 1.177 by root, Tue Oct 2 10:24:44 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
…		…
121	I32 laststype;	125	I32 laststype;
122	int laststatval;	126	int laststatval;
123	Stat_t statcache;	127	Stat_t statcache;
124	};	128	};
125		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
126	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
127	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;
128	static HV *coro_state_stash, *coro_stash;	134	static HV *coro_state_stash, *coro_stash;
129	static SV *coro_mortal; /* will be freed after next transfer */	135	static SV *coro_mortal; /* will be freed after next transfer */
130		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
131	static struct coro_cctx *cctx_first;	142	static struct coro_cctx *cctx_first;
132	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	};
133		153
134	/* this is a structure representing a c-level coroutine */	154	/* this is a structure representing a c-level coroutine */
135	typedef struct coro_cctx {	155	typedef struct coro_cctx {
136	struct coro_cctx *next;	156	struct coro_cctx *next;
137		157
138	/* the stack */	158	/* the stack */
139	void *sptr;	159	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	160	size_t ssize;
141		161
142	/* cpu state */	162	/* cpu state */
143	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	163	void *idle_sp; /* sp of top-level transfer/schedule/cede call */
144	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 */
145	JMPENV *top_env;	165	JMPENV *top_env;
146	coro_context cctx;	166	coro_context cctx;
147		167
148	int inuse;
149
150	#if USE_VALGRIND	168	#if CORO_USE_VALGRIND
151	int valgrind_id;	169	int valgrind_id;
152	#endif	170	#endif
		171	unsigned char flags;
153	} coro_cctx;	172	} coro_cctx;
154		173
155	enum {	174	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	175	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	176	CF_READY = 0x0002, /* coroutine is ready */
…		…
172		191
173	/* optionally saved, might be zero */	192	/* optionally saved, might be zero */
174	AV *defav; /* @_ */	193	AV *defav; /* @_ */
175	SV *defsv; /* $_ */	194	SV *defsv; /* $_ */
176	SV *errsv; /* $@ */	195	SV *errsv; /* $@ */
		196	GV *deffh; /* default filehandle */
177	SV *irssv; /* $/ */	197	SV *irssv; /* $/ */
178	SV *irssv_sv; /* real $/ cache */	198	SV *irssv_sv; /* real $/ cache */
179		199
180	#define VAR(name,type) type name;	200	#define VAR(name,type) type name;
181	# include "state.h"	201	# include "state.h"
182	#undef VAR	202	#undef VAR
183		203
		204	/* statistics */
		205	int usecount; /* number of switches to this coro */
		206
184	/* coro process data */	207	/* coro process data */
185	int prio;	208	int prio;
		209
		210	/* linked list */
		211	struct coro *next, *prev;
		212	HV *hv; /* the perl hash associated with this coro, if any */
186	};	213	};
187		214
188	typedef struct coro *Coro__State;	215	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	216	typedef struct coro *Coro__State_or_hashref;
190		217
…		…
199		226
200	/* for Coro.pm */	227	/* for Coro.pm */
201	static SV *coro_current;	228	static SV *coro_current;
202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	229	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203	static int coro_nready;	230	static int coro_nready;
		231	static struct coro *coro_first;
204		232
205	/** lowlevel stuff **********************************************************/	233	/** lowlevel stuff **********************************************************/
206		234
207	static AV *	235	static AV *
208	coro_clone_padlist (CV *cv)	236	coro_clone_padlist (pTHX_ CV *cv)
209	{	237	{
210	AV *padlist = CvPADLIST (cv);	238	AV *padlist = CvPADLIST (cv);
211	AV *newpadlist, *newpad;	239	AV *newpadlist, *newpad;
212		240
213	newpadlist = newAV ();	241	newpadlist = newAV ();
…		…
225		253
226	return newpadlist;	254	return newpadlist;
227	}	255	}
228		256
229	static void	257	static void
230	free_padlist (AV *padlist)	258	free_padlist (pTHX_ AV *padlist)
231	{	259	{
232	/* may be during global destruction */	260	/* may be during global destruction */
233	if (SvREFCNT (padlist))	261	if (SvREFCNT (padlist))
234	{	262	{
235	I32 i = AvFILLp (padlist);	263	I32 i = AvFILLp (padlist);
…		…
256	AV *padlist;	284	AV *padlist;
257	AV *av = (AV *)mg->mg_obj;	285	AV *av = (AV *)mg->mg_obj;
258		286
259	/* casting is fun. */	287	/* casting is fun. */
260	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	288	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
261	free_padlist (padlist);	289	free_padlist (aTHX_ padlist);
262		290
263	SvREFCNT_dec (av);	291	SvREFCNT_dec (av);
264		292
265	return 0;	293	return 0;
266	}	294	}
…		…
274	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	302	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
275	? SvMAGIC (cv) \	303	? SvMAGIC (cv) \
276	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	304	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
277	: 0	305	: 0
278		306
		307	static struct coro *
		308	SvSTATE_ (pTHX_ SV *coro)
		309	{
		310	HV *stash;
		311	MAGIC *mg;
		312
		313	if (SvROK (coro))
		314	coro = SvRV (coro);
		315
		316	if (SvTYPE (coro) != SVt_PVHV)
		317	croak ("Coro::State object required");
		318
		319	stash = SvSTASH (coro);
		320	if (stash != coro_stash && stash != coro_state_stash)
		321	{
		322	/* very slow, but rare, check */
		323	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		324	croak ("Coro::State object required");
		325	}
		326
		327	mg = CORO_MAGIC (coro);
		328	return (struct coro *)mg->mg_ptr;
		329	}
		330
		331	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		332
279	/* the next two functions merely cache the padlists */	333	/* the next two functions merely cache the padlists */
280	static void	334	static void
281	get_padlist (CV *cv)	335	get_padlist (pTHX_ CV *cv)
282	{	336	{
283	MAGIC *mg = CORO_MAGIC (cv);	337	MAGIC *mg = CORO_MAGIC (cv);
284	AV *av;	338	AV *av;
285		339
286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	340	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	341	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288	else	342	else
289	{	343	{
290	#if PREFER_PERL_FUNCTIONS	344	#if CORO_PREFER_PERL_FUNCTIONS
291	/* this is probably cleaner, but also slower? */	345	/* this is probably cleaner, but also slower? */
292	CV *cp = Perl_cv_clone (cv);	346	CV *cp = Perl_cv_clone (cv);
293	CvPADLIST (cv) = CvPADLIST (cp);	347	CvPADLIST (cv) = CvPADLIST (cp);
294	CvPADLIST (cp) = 0;	348	CvPADLIST (cp) = 0;
295	SvREFCNT_dec (cp);	349	SvREFCNT_dec (cp);
296	#else	350	#else
297	CvPADLIST (cv) = coro_clone_padlist (cv);	351	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298	#endif	352	#endif
299	}	353	}
300	}	354	}
301		355
302	static void	356	static void
303	put_padlist (CV *cv)	357	put_padlist (pTHX_ CV *cv)
304	{	358	{
305	MAGIC *mg = CORO_MAGIC (cv);	359	MAGIC *mg = CORO_MAGIC (cv);
306	AV *av;	360	AV *av;
307		361
308	if (!mg)	362	if (!mg)
…		…
327	#define SE } while (0)	381	#define SE } while (0)
328		382
329	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	383	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
330		384
331	static void	385	static void
332	load_perl (Coro__State c)	386	load_perl (pTHX_ Coro__State c)
333	{	387	{
334	#define VAR(name,type) PL_ ## name = c->name;	388	#define VAR(name,type) PL_ ## name = c->name;
335	# include "state.h"	389	# include "state.h"
336	#undef VAR	390	#undef VAR
337		391
338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	392	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
340	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		395	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		396
341	if (c->irssv)	397	if (c->irssv)
342	{	398	{
343	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))	399	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
		400	{
344	SvREFCNT_dec (c->irssv);	401	SvREFCNT_dec (c->irssv);
		402	c->irssv = 0;
		403	}
345	else	404	else
346	{	405	{
347	REPLACE_SV (PL_rs, c->irssv);	406	REPLACE_SV (PL_rs, c->irssv);
348	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	407	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
349	sv_setsv (c->irssv_sv, PL_rs);	408	sv_setsv (c->irssv_sv, PL_rs);
…		…
355	CV *cv;	414	CV *cv;
356		415
357	/* now do the ugly restore mess */	416	/* now do the ugly restore mess */
358	while ((cv = (CV *)POPs))	417	while ((cv = (CV *)POPs))
359	{	418	{
360	put_padlist (cv); /* mark this padlist as available */	419	put_padlist (aTHX_ cv); /* mark this padlist as available */
361	CvDEPTH (cv) = PTR2IV (POPs);	420	CvDEPTH (cv) = PTR2IV (POPs);
362	CvPADLIST (cv) = (AV *)POPs;	421	CvPADLIST (cv) = (AV *)POPs;
363	}	422	}
364		423
365	PUTBACK;	424	PUTBACK;
366	}	425	}
367	}	426	}
368		427
369	static void	428	static void
370	save_perl (Coro__State c)	429	save_perl (pTHX_ Coro__State c)
371	{	430	{
372	{	431	{
373	dSP;	432	dSP;
374	I32 cxix = cxstack_ix;	433	I32 cxix = cxstack_ix;
375	PERL_CONTEXT *ccstk = cxstack;	434	PERL_CONTEXT *ccstk = cxstack;
…		…
378	/*	437	/*
379	* the worst thing you can imagine happens first - we have to save	438	* the worst thing you can imagine happens first - we have to save
380	* (and reinitialize) all cv's in the whole callchain :(	439	* (and reinitialize) all cv's in the whole callchain :(
381	*/	440	*/
382		441
383	EXTEND (SP, 3 + 1);
384	PUSHs (Nullsv);	442	XPUSHs (Nullsv);
385	/* this loop was inspired by pp_caller */	443	/* this loop was inspired by pp_caller */
386	for (;;)	444	for (;;)
387	{	445	{
388	while (cxix >= 0)	446	while (cxix >= 0)
389	{	447	{
390	PERL_CONTEXT *cx = &ccstk[cxix--];	448	PERL_CONTEXT *cx = &ccstk[cxix--];
391		449
392	if (CxTYPE (cx) == CXt_SUB)	450	if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
393	{	451	{
394	CV *cv = cx->blk_sub.cv;	452	CV *cv = cx->blk_sub.cv;
395		453
396	if (CvDEPTH (cv))	454	if (CvDEPTH (cv))
397	{	455	{
…		…
399	PUSHs ((SV *)CvPADLIST (cv));	457	PUSHs ((SV *)CvPADLIST (cv));
400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	458	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401	PUSHs ((SV *)cv);	459	PUSHs ((SV *)cv);
402		460
403	CvDEPTH (cv) = 0;	461	CvDEPTH (cv) = 0;
404	get_padlist (cv);	462	get_padlist (aTHX_ cv);
405	}	463	}
406	}	464	}
407	}	465	}
408		466
409	if (top_si->si_type == PERLSI_MAIN)	467	if (top_si->si_type == PERLSI_MAIN)
410	break;	468	break;
411		469
412	top_si = top_si->si_prev;	470	top_si = top_si->si_prev;
413	ccstk = top_si->si_cxstack;	471	ccstk = top_si->si_cxstack;
414	cxix = top_si->si_cxix;	472	cxix = top_si->si_cxix;
415	}	473	}
416		474
417	PUTBACK;	475	PUTBACK;
418	}	476	}
419		477
420	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	478	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	479	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	480	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		481	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
423	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	482	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
424		483
425	#define VAR(name,type)c->name = PL_ ## name;	484	#define VAR(name,type)c->name = PL_ ## name;
426	# include "state.h"	485	# include "state.h"
427	#undef VAR	486	#undef VAR
…		…
431	* allocate various perl stacks. This is an exact copy	490	* allocate various perl stacks. This is an exact copy
432	* of perl.c:init_stacks, except that it uses less memory	491	* of perl.c:init_stacks, except that it uses less memory
433	* on the (sometimes correct) assumption that coroutines do	492	* on the (sometimes correct) assumption that coroutines do
434	* not usually need a lot of stackspace.	493	* not usually need a lot of stackspace.
435	*/	494	*/
436	#if PREFER_PERL_FUNCTIONS	495	#if CORO_PREFER_PERL_FUNCTIONS
437	# define coro_init_stacks init_stacks	496	# define coro_init_stacks init_stacks
438	#else	497	#else
439	static void	498	static void
440	coro_init_stacks ()	499	coro_init_stacks (pTHX)
441	{	500	{
442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	501	PL_curstackinfo = new_stackinfo(64, 6);
443	PL_curstackinfo->si_type = PERLSI_MAIN;	502	PL_curstackinfo->si_type = PERLSI_MAIN;
444	PL_curstack = PL_curstackinfo->si_stack;	503	PL_curstack = PL_curstackinfo->si_stack;
445	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446		505
447	PL_stack_base = AvARRAY(PL_curstack);	506	PL_stack_base = AvARRAY(PL_curstack);
448	PL_stack_sp = PL_stack_base;	507	PL_stack_sp = PL_stack_base;
449	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	508	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450		509
451	New(50,PL_tmps_stack,128,SV*);	510	New(50,PL_tmps_stack,64,SV*);
452	PL_tmps_floor = -1;	511	PL_tmps_floor = -1;
453	PL_tmps_ix = -1;	512	PL_tmps_ix = -1;
454	PL_tmps_max = 128;	513	PL_tmps_max = 64;
455		514
456	New(54,PL_markstack,32,I32);	515	New(54,PL_markstack,16,I32);
457	PL_markstack_ptr = PL_markstack;	516	PL_markstack_ptr = PL_markstack;
458	PL_markstack_max = PL_markstack + 32;	517	PL_markstack_max = PL_markstack + 16;
459		518
460	#ifdef SET_MARK_OFFSET	519	#ifdef SET_MARK_OFFSET
461	SET_MARK_OFFSET;	520	SET_MARK_OFFSET;
462	#endif	521	#endif
463		522
464	New(54,PL_scopestack,32,I32);	523	New(54,PL_scopestack,16,I32);
465	PL_scopestack_ix = 0;	524	PL_scopestack_ix = 0;
466	PL_scopestack_max = 32;	525	PL_scopestack_max = 16;
467		526
468	New(54,PL_savestack,64,ANY);	527	New(54,PL_savestack,64,ANY);
469	PL_savestack_ix = 0;	528	PL_savestack_ix = 0;
470	PL_savestack_max = 64;	529	PL_savestack_max = 64;
471		530
472	#if !PERL_VERSION_ATLEAST (5,9,0)	531	#if !PERL_VERSION_ATLEAST (5,9,0)
473	New(54,PL_retstack,16,OP*);	532	New(54,PL_retstack,4,OP*);
474	PL_retstack_ix = 0;	533	PL_retstack_ix = 0;
475	PL_retstack_max = 16;	534	PL_retstack_max = 4;
476	#endif	535	#endif
477	}	536	}
478	#endif	537	#endif
479		538
480	/*	539	/*
481	* destroy the stacks, the callchain etc...	540	* destroy the stacks, the callchain etc...
482	*/	541	*/
483	static void	542	static void
484	coro_destroy_stacks ()	543	coro_destroy_stacks (pTHX)
485	{	544	{
486	if (!IN_DESTRUCT)	545	if (!IN_DESTRUCT)
487	{	546	{
488	/* restore all saved variables and stuff */	547	/* restore all saved variables and stuff */
489	LEAVE_SCOPE (0);	548	LEAVE_SCOPE (0);
…		…
522	#if !PERL_VERSION_ATLEAST (5,9,0)	581	#if !PERL_VERSION_ATLEAST (5,9,0)
523	Safefree (PL_retstack);	582	Safefree (PL_retstack);
524	#endif	583	#endif
525	}	584	}
526		585
		586	static size_t
		587	coro_rss (pTHX_ struct coro *coro)
		588	{
		589	size_t rss = sizeof (coro);
		590
		591	if (coro->mainstack)
		592	{
		593	if (coro->flags & CF_RUNNING)
		594	{
		595	#define VAR(name,type)coro->name = PL_ ## name;
		596	# include "state.h"
		597	#undef VAR
		598	}
		599
		600	rss += sizeof (coro->curstackinfo);
		601	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		602	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		603	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		604	rss += coro->tmps_max * sizeof (SV *);
		605	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		606	rss += coro->scopestack_max * sizeof (I32);
		607	rss += coro->savestack_max * sizeof (ANY);
		608
		609	#if !PERL_VERSION_ATLEAST (5,9,0)
		610	rss += coro->retstack_max * sizeof (OP *);
		611	#endif
		612	}
		613
		614	return rss;
		615	}
		616
527	/** coroutine stack handling ************************************************/	617	/** coroutine stack handling ************************************************/
528		618
529	static void	619	static void
530	setup_coro (struct coro *coro)	620	setup_coro (pTHX_ struct coro *coro)
531	{	621	{
532	/*	622	/*
533	* emulate part of the perl startup here.	623	* emulate part of the perl startup here.
534	*/	624	*/
535
536	coro_init_stacks ();	625	coro_init_stacks (aTHX);
537		626
		627	PL_runops = RUNOPS_DEFAULT;
538	PL_curcop = &PL_compiling;	628	PL_curcop = &PL_compiling;
539	PL_in_eval = EVAL_NULL;	629	PL_in_eval = EVAL_NULL;
		630	PL_comppad = 0;
540	PL_curpm = 0;	631	PL_curpm = 0;
541	PL_localizing = 0;	632	PL_localizing = 0;
542	PL_dirty = 0;	633	PL_dirty = 0;
543	PL_restartop = 0;	634	PL_restartop = 0;
544		635
…		…
552	Zero (&myop, 1, LOGOP);	643	Zero (&myop, 1, LOGOP);
553	myop.op_next = Nullop;	644	myop.op_next = Nullop;
554	myop.op_flags = OPf_WANT_VOID;	645	myop.op_flags = OPf_WANT_VOID;
555		646
556	PUSHMARK (SP);	647	PUSHMARK (SP);
557	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	648	XPUSHs (av_shift (GvAV (PL_defgv)));
558	PUTBACK;	649	PUTBACK;
559	PL_op = (OP *)&myop;	650	PL_op = (OP *)&myop;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	652	SPAGAIN;
562	}	653	}
563		654
564	ENTER; /* necessary e.g. for dounwind */	655	ENTER; /* necessary e.g. for dounwind */
565	}	656	}
566		657
567	static void	658	static void
568	free_coro_mortal ()	659	free_coro_mortal (pTHX)
569	{	660	{
570	if (coro_mortal)	661	if (coro_mortal)
571	{	662	{
572	SvREFCNT_dec (coro_mortal);	663	SvREFCNT_dec (coro_mortal);
573	coro_mortal = 0;	664	coro_mortal = 0;
574	}	665	}
575	}	666	}
576		667
		668	static int
		669	runops_trace (pTHX)
		670	{
		671	COP *oldcop = 0;
		672	int oldcxix = -2;
		673	struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
		674	coro_cctx *cctx = coro->cctx;
		675
		676	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		677	{
		678	PERL_ASYNC_CHECK ();
		679
		680	if (cctx->flags & CC_TRACE_ALL)
		681	{
		682	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		683	{
		684	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		685	SV **bot, **top;
		686	AV *av = newAV (); /* return values */
		687	SV **cb;
		688	dSP;
		689
		690	GV *gv = CvGV (cx->blk_sub.cv);
		691	SV *fullname = sv_2mortal (newSV (0));
		692	if (isGV (gv))
		693	gv_efullname3 (fullname, gv, 0);
		694
		695	bot = PL_stack_base + cx->blk_oldsp + 1;
		696	top = cx->blk_gimme == G_ARRAY ? SP + 1
		697	: cx->blk_gimme == G_SCALAR ? bot + 1
		698	: bot;
		699
		700	while (bot < top)
		701	av_push (av, SvREFCNT_inc (*bot++));
		702
		703	PL_runops = RUNOPS_DEFAULT;
		704	ENTER;
		705	SAVETMPS;
		706	EXTEND (SP, 3);
		707	PUSHMARK (SP);
		708	PUSHs (&PL_sv_no);
		709	PUSHs (fullname);
		710	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		711	PUTBACK;
		712	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		713	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		714	SPAGAIN;
		715	FREETMPS;
		716	LEAVE;
		717	PL_runops = runops_trace;
		718	}
		719
		720	if (oldcop != PL_curcop)
		721	{
		722	oldcop = PL_curcop;
		723
		724	if (PL_curcop != &PL_compiling)
		725	{
		726	SV **cb;
		727
		728	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		729	{
		730	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		731
		732	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		733	{
		734	runops_proc_t old_runops = PL_runops;
		735	dSP;
		736	GV *gv = CvGV (cx->blk_sub.cv);
		737	SV *fullname = sv_2mortal (newSV (0));
		738
		739	if (isGV (gv))
		740	gv_efullname3 (fullname, gv, 0);
		741
		742	PL_runops = RUNOPS_DEFAULT;
		743	ENTER;
		744	SAVETMPS;
		745	EXTEND (SP, 3);
		746	PUSHMARK (SP);
		747	PUSHs (&PL_sv_yes);
		748	PUSHs (fullname);
		749	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		750	PUTBACK;
		751	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		752	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		753	SPAGAIN;
		754	FREETMPS;
		755	LEAVE;
		756	PL_runops = runops_trace;
		757	}
		758
		759	oldcxix = cxstack_ix;
		760	}
		761
		762	if (cctx->flags & CC_TRACE_LINE)
		763	{
		764	dSP;
		765
		766	PL_runops = RUNOPS_DEFAULT;
		767	ENTER;
		768	SAVETMPS;
		769	EXTEND (SP, 3);
		770	PL_runops = RUNOPS_DEFAULT;
		771	PUSHMARK (SP);
		772	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		773	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		774	PUTBACK;
		775	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		776	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		777	SPAGAIN;
		778	FREETMPS;
		779	LEAVE;
		780	PL_runops = runops_trace;
		781	}
		782	}
		783	}
		784	}
		785	}
		786
		787	TAINT_NOT;
		788	return 0;
		789	}
		790
577	/* inject a fake call to Coro::State::_cctx_init into the execution */	791	/* inject a fake call to Coro::State::_cctx_init into the execution */
		792	/* _cctx_init should be careful, as it could be called at almost any time */
		793	/* during execution of a perl program */
578	static void NOINLINE	794	static void NOINLINE
579	prepare_cctx (coro_cctx *cctx)	795	prepare_cctx (pTHX_ coro_cctx *cctx)
580	{	796	{
581	dSP;	797	dSP;
582	LOGOP myop;	798	LOGOP myop;
		799
		800	PL_top_env = &PL_start_env;
		801
		802	if (cctx->flags & CC_TRACE)
		803	PL_runops = runops_trace;
583		804
584	Zero (&myop, 1, LOGOP);	805	Zero (&myop, 1, LOGOP);
585	myop.op_next = PL_op;	806	myop.op_next = PL_op;
586	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	807	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
587		808
…		…
593	PL_op = (OP *)&myop;	814	PL_op = (OP *)&myop;
594	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	815	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595	SPAGAIN;	816	SPAGAIN;
596	}	817	}
597		818
		819	/*
		820	* this is a _very_ stripped down perl interpreter ;)
		821	*/
598	static void	822	static void
599	coro_run (void *arg)	823	coro_run (void *arg)
600	{	824	{
		825	dTHX;
		826
601	/* coro_run is the alternative tail of transfer(), so unlock here. */	827	/* coro_run is the alternative tail of transfer(), so unlock here. */
602	UNLOCK;	828	UNLOCK;
603		829
604	/*	830	/* we now skip the entersub that lead to transfer() */
605	* this is a _very_ stripped down perl interpreter ;)	831	PL_op = PL_op->op_next;
606	*/
607	PL_top_env = &PL_start_env;
608		832
609	/* inject call to cctx_init */	833	/* inject a fake subroutine call to cctx_init */
610	prepare_cctx ((coro_cctx *)arg);	834	prepare_cctx (aTHX_ (coro_cctx *)arg);
611		835
612	/* somebody will hit me for both perl_run and PL_restartop */	836	/* somebody or something will hit me for both perl_run and PL_restartop */
613	PL_restartop = PL_op;	837	PL_restartop = PL_op;
614	perl_run (PL_curinterp);	838	perl_run (PL_curinterp);
615		839
616	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	840	/*
617	abort ();	841	* If perl-run returns we assume exit() was being called or the coro
		842	* fell off the end, which seems to be the only valid (non-bug)
		843	* reason for perl_run to return. We try to exit by jumping to the
		844	* bootstrap-time "top" top_env, as we cannot restore the "main"
		845	* coroutine as Coro has no such concept
		846	*/
		847	PL_top_env = main_top_env;
		848	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
618	}	849	}
619		850
620	static coro_cctx *	851	static coro_cctx *
621	cctx_new ()	852	cctx_new ()
622	{	853	{
623	coro_cctx *cctx;	854	coro_cctx *cctx;
		855	void *stack_start;
		856	size_t stack_size;
624		857
625	++cctx_count;	858	++cctx_count;
626		859
627	Newz (0, cctx, 1, coro_cctx);	860	Newz (0, cctx, 1, coro_cctx);
628		861
629	#if HAVE_MMAP	862	#if HAVE_MMAP
630		863
631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	864	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632	/* mmap supposedly does allocate-on-write for us */	865	/* mmap supposedly does allocate-on-write for us */
633	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);	866	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
634		867
635	if (cctx->sptr == (void *)-1)	868	if (cctx->sptr != (void *)-1)
636	{
637	perror ("FATAL: unable to mmap stack for coroutine");
638	_exit (EXIT_FAILURE);
639	}	869	{
640
641	# if STACKGUARD	870	# if CORO_STACKGUARD
642	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	871	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643	# endif	872	# endif
		873	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		874	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		875	cctx->flags |= CC_MAPPED;
		876	}
		877	else
		878	#endif
		879	{
		880	cctx->ssize = coro_stacksize * (long)sizeof (long);
		881	New (0, cctx->sptr, coro_stacksize, long);
644		882
645	#else
646
647	cctx->ssize = STACKSIZE * (long)sizeof (long);
648	New (0, cctx->sptr, STACKSIZE, long);
649
650	if (!cctx->sptr)	883	if (!cctx->sptr)
651	{	884	{
652	perror ("FATAL: unable to malloc stack for coroutine");	885	perror ("FATAL: unable to allocate stack for coroutine");
653	_exit (EXIT_FAILURE);	886	_exit (EXIT_FAILURE);
654	}	887	}
655		888
656	#endif	889	stack_start = cctx->sptr;
		890	stack_size = cctx->ssize;
		891	}
657		892
658	#if USE_VALGRIND	893	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
659	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
660	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
661	cctx->ssize + (char *)cctx->sptr
662	);
663	#endif
664
665	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	894	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
666		895
667	return cctx;	896	return cctx;
668	}	897	}
669		898
670	static void	899	static void
…		…
673	if (!cctx)	902	if (!cctx)
674	return;	903	return;
675		904
676	--cctx_count;	905	--cctx_count;
677		906
678	#if USE_VALGRIND	907	#if CORO_USE_VALGRIND
679	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	908	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680	#endif	909	#endif
681		910
682	#if HAVE_MMAP	911	#if HAVE_MMAP
		912	if (cctx->flags & CC_MAPPED)
683	munmap (cctx->sptr, cctx->ssize);	913	munmap (cctx->sptr, cctx->ssize);
684	#else	914	else
		915	#endif
685	Safefree (cctx->sptr);	916	Safefree (cctx->sptr);
686	#endif
687		917
688	Safefree (cctx);	918	Safefree (cctx);
689	}	919	}
690		920
691	static coro_cctx *	921	static coro_cctx *
692	cctx_get ()	922	cctx_get (pTHX)
693	{	923	{
694	coro_cctx *cctx;
695
696	if (cctx_first)	924	while (cctx_first)
697	{	925	{
698	cctx = cctx_first;	926	coro_cctx *cctx = cctx_first;
699	cctx_first = cctx->next;	927	cctx_first = cctx->next;
700	--cctx_idle;	928	--cctx_idle;
701	}	929
702	else	930	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
703	{	931	return cctx;
704	cctx = cctx_new ();	932
705	PL_op = PL_op->op_next;	933	cctx_destroy (cctx);
706	}	934	}
707		935
708	return cctx;	936	return cctx_new ();
709	}	937	}
710		938
711	static void	939	static void
712	cctx_put (coro_cctx *cctx)	940	cctx_put (coro_cctx *cctx)
713	{	941	{
…		…
716	{	944	{
717	coro_cctx *first = cctx_first;	945	coro_cctx *first = cctx_first;
718	cctx_first = first->next;	946	cctx_first = first->next;
719	--cctx_idle;	947	--cctx_idle;
720		948
721	assert (!first->inuse);
722	cctx_destroy (first);	949	cctx_destroy (first);
723	}	950	}
724		951
725	++cctx_idle;	952	++cctx_idle;
726	cctx->next = cctx_first;	953	cctx->next = cctx_first;
727	cctx_first = cctx;	954	cctx_first = cctx;
728	}	955	}
729		956
730	/** coroutine switching *****************************************************/	957	/** coroutine switching *****************************************************/
731		958
732	/* never call directly, always through the coro_state_transfer global variable */
733	static void NOINLINE	959	static void NOINLINE
		960	transfer_check (pTHX_ struct coro *prev, struct coro *next)
		961	{
		962	if (prev != next)
		963	{
		964	if (!(prev->flags & (CF_RUNNING | CF_NEW)))
		965	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		966
		967	if (next->flags & CF_RUNNING)
		968	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		969
		970	if (next->flags & CF_DESTROYED)
		971	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		972
		973	if (PL_lex_state != LEX_NOTPARSING)
		974	croak ("Coro::State::transfer called while parsing, but this is not supported");
		975	}
		976	}
		977
		978	/* always use the TRANSFER macro */
		979	static void NOINLINE
734	transfer (struct coro *prev, struct coro *next)	980	transfer (pTHX_ struct coro *prev, struct coro *next)
735	{	981	{
736	dSTACKLEVEL;	982	dSTACKLEVEL;
737		983
738	/* sometimes transfer is only called to set idle_sp */	984	/* sometimes transfer is only called to set idle_sp */
739	if (!next)	985	if (!next)
…		…
747		993
748	if (prev->flags & CF_NEW)	994	if (prev->flags & CF_NEW)
749	{	995	{
750	/* create a new empty context */	996	/* create a new empty context */
751	Newz (0, prev->cctx, 1, coro_cctx);	997	Newz (0, prev->cctx, 1, coro_cctx);
752	prev->cctx->inuse = 1;
753	prev->flags &= ~CF_NEW;	998	prev->flags &= ~CF_NEW;
754	prev->flags |= CF_RUNNING;	999	prev->flags |= CF_RUNNING;
755	}	1000	}
756
757	/*TODO: must not croak here */
758	if (!prev->flags & CF_RUNNING)
759	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
760
761	if (next->flags & CF_RUNNING)
762	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
763
764	if (next->flags & CF_DESTROYED)
765	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
766		1001
767	prev->flags &= ~CF_RUNNING;	1002	prev->flags &= ~CF_RUNNING;
768	next->flags |= CF_RUNNING;	1003	next->flags |= CF_RUNNING;
769		1004
770	LOCK;	1005	LOCK;
…		…
772	if (next->flags & CF_NEW)	1007	if (next->flags & CF_NEW)
773	{	1008	{
774	/* need to start coroutine */	1009	/* need to start coroutine */
775	next->flags &= ~CF_NEW;	1010	next->flags &= ~CF_NEW;
776	/* first get rid of the old state */	1011	/* first get rid of the old state */
777	save_perl (prev);	1012	save_perl (aTHX_ prev);
778	/* setup coroutine call */	1013	/* setup coroutine call */
779	setup_coro (next);	1014	setup_coro (aTHX_ next);
780	/* need a new stack */
781	assert (!next->cctx);
782	}	1015	}
783	else	1016	else
784	{	1017	{
785	/* coroutine already started */	1018	/* coroutine already started */
786	save_perl (prev);	1019	save_perl (aTHX_ prev);
787	load_perl (next);	1020	load_perl (aTHX_ next);
788	}	1021	}
789		1022
790	prev__cctx = prev->cctx;	1023	prev__cctx = prev->cctx;
791		1024
792	/* possibly "free" the cctx */	1025	/* possibly "free" the cctx */
793	if (prev__cctx->idle_sp == STACKLEVEL)	1026	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
794	{	1027	{
795	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1028	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
796	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1029	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
797		1030
798	prev->cctx = 0;	1031	prev->cctx = 0;
799		1032
800	cctx_put (prev__cctx);	1033	cctx_put (prev__cctx);
801	prev__cctx->inuse = 0;
802	}	1034	}
803		1035
		1036	++next->usecount;
		1037
804	if (!next->cctx)	1038	if (!next->cctx)
805	{
806	next->cctx = cctx_get ();	1039	next->cctx = cctx_get (aTHX);
807	assert (!next->cctx->inuse);
808	next->cctx->inuse = 1;
809	}
810		1040
811	if (prev__cctx != next->cctx)	1041	if (prev__cctx != next->cctx)
812	{	1042	{
813	prev__cctx->top_env = PL_top_env;	1043	prev__cctx->top_env = PL_top_env;
814	PL_top_env = next->cctx->top_env;	1044	PL_top_env = next->cctx->top_env;
815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1045	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816	}	1046	}
817		1047
818	free_coro_mortal ();	1048	free_coro_mortal (aTHX);
819	UNLOCK;	1049	UNLOCK;
820	}	1050	}
821	}	1051	}
822		1052
823	struct transfer_args	1053	struct transfer_args
824	{	1054	{
825	struct coro *prev, *next;	1055	struct coro *prev, *next;
826	};	1056	};
827		1057
828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1058	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1059	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
829		1060
830	/** high level stuff ********************************************************/	1061	/** high level stuff ********************************************************/
831		1062
832	static int	1063	static int
833	coro_state_destroy (struct coro *coro)	1064	coro_state_destroy (pTHX_ struct coro *coro)
834	{	1065	{
835	if (coro->flags & CF_DESTROYED)	1066	if (coro->flags & CF_DESTROYED)
836	return 0;	1067	return 0;
837		1068
838	coro->flags |= CF_DESTROYED;	1069	coro->flags |= CF_DESTROYED;
…		…
850		1081
851	if (coro->mainstack && coro->mainstack != main_mainstack)	1082	if (coro->mainstack && coro->mainstack != main_mainstack)
852	{	1083	{
853	struct coro temp;	1084	struct coro temp;
854		1085
855	assert (!(coro->flags & CF_RUNNING));	1086	if (coro->flags & CF_RUNNING)
		1087	croak ("FATAL: tried to destroy currently running coroutine");
856		1088
857	Zero (&temp, 1, struct coro);	1089	Zero (&temp, 1, struct coro);
858	temp.save = CORO_SAVE_ALL;	1090	temp.save = CORO_SAVE_ALL;
859		1091
860	if (coro->flags & CF_RUNNING)
861	croak ("FATAL: tried to destroy currently running coroutine");
862
863	save_perl (&temp);	1092	save_perl (aTHX_ &temp);
864	load_perl (coro);	1093	load_perl (aTHX_ coro);
865		1094
866	coro_destroy_stacks ();	1095	coro_destroy_stacks (aTHX);
867		1096
868	load_perl (&temp); /* this will get rid of defsv etc.. */	1097	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
869		1098
870	coro->mainstack = 0;	1099	coro->mainstack = 0;
871	}	1100	}
872		1101
873	cctx_destroy (coro->cctx);	1102	cctx_destroy (coro->cctx);
874	SvREFCNT_dec (coro->args);	1103	SvREFCNT_dec (coro->args);
875		1104
		1105	if (coro->next) coro->next->prev = coro->prev;
		1106	if (coro->prev) coro->prev->next = coro->next;
		1107	if (coro == coro_first) coro_first = coro->next;
		1108
876	return 1;	1109	return 1;
877	}	1110	}
878		1111
879	static int	1112	static int
880	coro_state_free (pTHX_ SV *sv, MAGIC *mg)	1113	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
881	{	1114	{
882	struct coro *coro = (struct coro *)mg->mg_ptr;	1115	struct coro *coro = (struct coro *)mg->mg_ptr;
883	mg->mg_ptr = 0;	1116	mg->mg_ptr = 0;
884		1117
		1118	coro->hv = 0;
		1119
885	if (--coro->refcnt < 0)	1120	if (--coro->refcnt < 0)
886	{	1121	{
887	coro_state_destroy (coro);	1122	coro_state_destroy (aTHX_ coro);
888	Safefree (coro);	1123	Safefree (coro);
889	}	1124	}
890		1125
891	return 0;	1126	return 0;
892	}	1127	}
…		…
910	#else	1145	#else
911	# define MGf_DUP 0	1146	# define MGf_DUP 0
912	#endif	1147	#endif
913	};	1148	};
914		1149
915	static struct coro *
916	SvSTATE (SV *coro)
917	{
918	HV *stash;
919	MAGIC *mg;
920
921	if (SvROK (coro))
922	coro = SvRV (coro);
923
924	stash = SvSTASH (coro);
925	if (stash != coro_stash && stash != coro_state_stash)
926	{
927	/* very slow, but rare, check */
928	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
929	croak ("Coro::State object required");
930	}
931
932	mg = SvMAGIC (coro);
933	assert (mg->mg_type == PERL_MAGIC_ext);
934	return (struct coro *)mg->mg_ptr;
935	}
936
937	static void	1150	static void
938	prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv)	1151	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
939	{	1152	{
940	ta->prev = SvSTATE (prev_sv);	1153	ta->prev = SvSTATE (prev_sv);
941	ta->next = SvSTATE (next_sv);	1154	ta->next = SvSTATE (next_sv);
		1155	TRANSFER_CHECK (*ta);
942	}	1156	}
943		1157
944	static void	1158	static void
945	api_transfer (SV *prev_sv, SV *next_sv)	1159	api_transfer (SV *prev_sv, SV *next_sv)
946	{	1160	{
		1161	dTHX;
947	struct transfer_args ta;	1162	struct transfer_args ta;
948		1163
949	prepare_transfer (&ta, prev_sv, next_sv);	1164	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
950	TRANSFER (ta);	1165	TRANSFER (ta);
951	}	1166	}
952		1167
953	static int	1168	static int
954	api_save (SV *coro_sv, int new_save)	1169	api_save (SV *coro_sv, int new_save)
955	{	1170	{
		1171	dTHX;
956	struct coro *coro = SvSTATE (coro_sv);	1172	struct coro *coro = SvSTATE (coro_sv);
957	int old_save = coro->save;	1173	int old_save = coro->save;
958		1174
959	if (new_save >= 0)	1175	if (new_save >= 0)
960	coro->save = new_save;	1176	coro->save = new_save;
…		…
963	}	1179	}
964		1180
965	/** Coro ********************************************************************/	1181	/** Coro ********************************************************************/
966		1182
967	static void	1183	static void
968	coro_enq (SV *coro_sv)	1184	coro_enq (pTHX_ SV *coro_sv)
969	{	1185	{
970	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1186	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
971	}	1187	}
972		1188
973	static SV *	1189	static SV *
974	coro_deq (int min_prio)	1190	coro_deq (pTHX_ int min_prio)
975	{	1191	{
976	int prio = PRIO_MAX - PRIO_MIN;	1192	int prio = PRIO_MAX - PRIO_MIN;
977		1193
978	min_prio -= PRIO_MIN;	1194	min_prio -= PRIO_MIN;
979	if (min_prio < 0)	1195	if (min_prio < 0)
…		…
987	}	1203	}
988		1204
989	static int	1205	static int
990	api_ready (SV *coro_sv)	1206	api_ready (SV *coro_sv)
991	{	1207	{
		1208	dTHX;
992	struct coro *coro;	1209	struct coro *coro;
993		1210
994	if (SvROK (coro_sv))	1211	if (SvROK (coro_sv))
995	coro_sv = SvRV (coro_sv);	1212	coro_sv = SvRV (coro_sv);
996		1213
…		…
1000	return 0;	1217	return 0;
1001		1218
1002	coro->flags |= CF_READY;	1219	coro->flags |= CF_READY;
1003		1220
1004	LOCK;	1221	LOCK;
1005	coro_enq (SvREFCNT_inc (coro_sv));	1222	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1006	++coro_nready;	1223	++coro_nready;
1007	UNLOCK;	1224	UNLOCK;
1008		1225
1009	return 1;	1226	return 1;
1010	}	1227	}
1011		1228
1012	static int	1229	static int
1013	api_is_ready (SV *coro_sv)	1230	api_is_ready (SV *coro_sv)
1014	{	1231	{
		1232	dTHX;
1015	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1233	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1016	}	1234	}
1017		1235
1018	static void	1236	static void
1019	prepare_schedule (struct transfer_args *ta)	1237	prepare_schedule (pTHX_ struct transfer_args *ta)
1020	{	1238	{
1021	SV *prev_sv, *next_sv;	1239	SV *prev_sv, *next_sv;
1022		1240
1023	for (;;)	1241	for (;;)
1024	{	1242	{
1025	LOCK;	1243	LOCK;
1026	next_sv = coro_deq (PRIO_MIN);	1244	next_sv = coro_deq (aTHX_ PRIO_MIN);
1027		1245
1028	/* nothing to schedule: call the idle handler */	1246	/* nothing to schedule: call the idle handler */
1029	if (!next_sv)	1247	if (!next_sv)
1030	{	1248	{
1031	dSP;	1249	dSP;
…		…
1059	break;	1277	break;
1060	}	1278	}
1061		1279
1062	/* free this only after the transfer */	1280	/* free this only after the transfer */
1063	prev_sv = SvRV (coro_current);	1281	prev_sv = SvRV (coro_current);
1064	SvRV_set (coro_current, next_sv);
1065	ta->prev = SvSTATE (prev_sv);	1282	ta->prev = SvSTATE (prev_sv);
1066		1283	TRANSFER_CHECK (*ta);
1067	assert (ta->next->flags & CF_READY);	1284	assert (ta->next->flags & CF_READY);
1068	ta->next->flags &= ~CF_READY;	1285	ta->next->flags &= ~CF_READY;
		1286	SvRV_set (coro_current, next_sv);
1069		1287
1070	LOCK;	1288	LOCK;
1071	free_coro_mortal ();	1289	free_coro_mortal (aTHX);
1072	coro_mortal = prev_sv;	1290	coro_mortal = prev_sv;
1073	UNLOCK;	1291	UNLOCK;
1074	}	1292	}
1075		1293
1076	static void	1294	static void
1077	prepare_cede (struct transfer_args *ta)	1295	prepare_cede (pTHX_ struct transfer_args *ta)
1078	{	1296	{
1079	api_ready (coro_current);	1297	api_ready (coro_current);
1080	prepare_schedule (ta);	1298	prepare_schedule (aTHX_ ta);
1081	}	1299	}
1082		1300
1083	static int	1301	static int
1084	prepare_cede_notself (struct transfer_args *ta)	1302	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1085	{	1303	{
1086	if (coro_nready)	1304	if (coro_nready)
1087	{	1305	{
1088	SV *prev = SvRV (coro_current);	1306	SV *prev = SvRV (coro_current);
1089	prepare_schedule (ta);	1307	prepare_schedule (aTHX_ ta);
1090	api_ready (prev);	1308	api_ready (prev);
1091	return 1;	1309	return 1;
1092	}	1310	}
1093	else	1311	else
1094	return 0;	1312	return 0;
1095	}	1313	}
1096		1314
1097	static void	1315	static void
1098	api_schedule (void)	1316	api_schedule (void)
1099	{	1317	{
		1318	dTHX;
1100	struct transfer_args ta;	1319	struct transfer_args ta;
1101		1320
1102	prepare_schedule (&ta);	1321	prepare_schedule (aTHX_ &ta);
1103	TRANSFER (ta);	1322	TRANSFER (ta);
1104	}	1323	}
1105		1324
1106	static int	1325	static int
1107	api_cede (void)	1326	api_cede (void)
1108	{	1327	{
		1328	dTHX;
1109	struct transfer_args ta;	1329	struct transfer_args ta;
1110		1330
1111	prepare_cede (&ta);	1331	prepare_cede (aTHX_ &ta);
1112		1332
1113	if (ta.prev != ta.next)	1333	if (ta.prev != ta.next)
1114	{	1334	{
1115	TRANSFER (ta);	1335	TRANSFER (ta);
1116	return 1;	1336	return 1;
…		…
1120	}	1340	}
1121		1341
1122	static int	1342	static int
1123	api_cede_notself (void)	1343	api_cede_notself (void)
1124	{	1344	{
		1345	dTHX;
1125	struct transfer_args ta;	1346	struct transfer_args ta;
1126		1347
1127	if (prepare_cede_notself (&ta))	1348	if (prepare_cede_notself (aTHX_ &ta))
1128	{	1349	{
1129	TRANSFER (ta);	1350	TRANSFER (ta);
1130	return 1;	1351	return 1;
1131	}	1352	}
1132	else	1353	else
1133	return 0;	1354	return 0;
1134	}	1355	}
1135		1356
		1357	static void
		1358	api_trace (SV *coro_sv, int flags)
		1359	{
		1360	dTHX;
		1361	struct coro *coro = SvSTATE (coro_sv);
		1362
		1363	if (flags & CC_TRACE)
		1364	{
		1365	if (!coro->cctx)
		1366	coro->cctx = cctx_new ();
		1367	else if (!(coro->cctx->flags & CC_TRACE))
		1368	croak ("cannot enable tracing on coroutine with custom stack");
		1369
		1370	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
		1371	}
		1372	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1373	{
		1374	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
		1375
		1376	if (coro->flags & CF_RUNNING)
		1377	PL_runops = RUNOPS_DEFAULT;
		1378	else
		1379	coro->runops = RUNOPS_DEFAULT;
		1380	}
		1381	}
		1382
1136	MODULE = Coro::State PACKAGE = Coro::State	1383	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1137		1384
1138	PROTOTYPES: DISABLE	1385	PROTOTYPES: DISABLE
1139		1386
1140	BOOT:	1387	BOOT:
1141	{	1388	{
…		…
1143	MUTEX_INIT (&coro_mutex);	1390	MUTEX_INIT (&coro_mutex);
1144	#endif	1391	#endif
1145	BOOT_PAGESIZE;	1392	BOOT_PAGESIZE;
1146		1393
1147	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1394	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1395
		1396	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1397	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1398	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1399	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1148		1400
1149	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1401	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1150	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1402	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1151	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1403	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1152	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1404	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1405	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1406	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1153	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1407	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1154		1408
1155	main_mainstack = PL_mainstack;	1409	main_mainstack = PL_mainstack;
		1410	main_top_env = PL_top_env;
		1411
		1412	while (main_top_env->je_prev)
		1413	main_top_env = main_top_env->je_prev;
1156		1414
1157	coroapi.ver = CORO_API_VERSION;	1415	coroapi.ver = CORO_API_VERSION;
1158	coroapi.transfer = api_transfer;	1416	coroapi.transfer = api_transfer;
1159		1417
1160	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1418	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1168	HV *hv;	1426	HV *hv;
1169	int i;	1427	int i;
1170		1428
1171	Newz (0, coro, 1, struct coro);	1429	Newz (0, coro, 1, struct coro);
1172	coro->args = newAV ();	1430	coro->args = newAV ();
1173	coro->save = CORO_SAVE_ALL;	1431	coro->save = CORO_SAVE_DEF;
1174	coro->flags = CF_NEW;	1432	coro->flags = CF_NEW;
1175		1433
		1434	if (coro_first) coro_first->prev = coro;
		1435	coro->next = coro_first;
		1436	coro_first = coro;
		1437
1176	hv = newHV ();	1438	coro->hv = hv = newHV ();
1177	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1439	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1178	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1440	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1179		1441
1180	for (i = 1; i < items; i++)	1442	for (i = 1; i < items; i++)
1181	av_push (coro->args, newSVsv (ST (i)));	1443	av_push (coro->args, newSVsv (ST (i)));
…		…
1188	CODE:	1450	CODE:
1189	RETVAL = api_save (coro, new_save);	1451	RETVAL = api_save (coro, new_save);
1190	OUTPUT:	1452	OUTPUT:
1191	RETVAL	1453	RETVAL
1192		1454
		1455	int
		1456	save_also (SV *coro_sv, int save_also)
		1457	CODE:
		1458	{
		1459	struct coro *coro = SvSTATE (coro_sv);
		1460	RETVAL = coro->save;
		1461	coro->save |= save_also;
		1462	}
		1463	OUTPUT:
		1464	RETVAL
		1465
		1466	# these not obviously related functions are all rolled into the same xs
		1467	# function to increase chances that they all will call transfer with the same
		1468	# stack offset
1193	void	1469	void
1194	_set_stacklevel (...)	1470	_set_stacklevel (...)
1195	ALIAS:	1471	ALIAS:
1196	Coro::State::transfer = 1	1472	Coro::State::transfer = 1
1197	Coro::schedule = 2	1473	Coro::schedule = 2
…		…
1210		1486
1211	case 1:	1487	case 1:
1212	if (items != 2)	1488	if (items != 2)
1213	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1489	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1214		1490
1215	prepare_transfer (&ta, ST (0), ST (1));	1491	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1216	break;	1492	break;
1217		1493
1218	case 2:	1494	case 2:
1219	prepare_schedule (&ta);	1495	prepare_schedule (aTHX_ &ta);
1220	break;	1496	break;
1221		1497
1222	case 3:	1498	case 3:
1223	prepare_cede (&ta);	1499	prepare_cede (aTHX_ &ta);
1224	break;	1500	break;
1225		1501
1226	case 4:	1502	case 4:
1227	if (!prepare_cede_notself (&ta))	1503	if (!prepare_cede_notself (aTHX_ &ta))
1228	XSRETURN_EMPTY;	1504	XSRETURN_EMPTY;
1229		1505
1230	break;	1506	break;
1231	}	1507	}
1232		1508
…		…
1238	}	1514	}
1239		1515
1240	bool	1516	bool
1241	_destroy (SV *coro_sv)	1517	_destroy (SV *coro_sv)
1242	CODE:	1518	CODE:
1243	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1519	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1244	OUTPUT:	1520	OUTPUT:
1245	RETVAL	1521	RETVAL
1246		1522
1247	void	1523	void
1248	_exit (code)	1524	_exit (code)
…		…
1250	PROTOTYPE: $	1526	PROTOTYPE: $
1251	CODE:	1527	CODE:
1252	_exit (code);	1528	_exit (code);
1253		1529
1254	int	1530	int
		1531	cctx_stacksize (int new_stacksize = 0)
		1532	CODE:
		1533	RETVAL = coro_stacksize;
		1534	if (new_stacksize)
		1535	coro_stacksize = new_stacksize;
		1536	OUTPUT:
		1537	RETVAL
		1538
		1539	int
1255	cctx_count ()	1540	cctx_count ()
1256	CODE:	1541	CODE:
1257	RETVAL = cctx_count;	1542	RETVAL = cctx_count;
1258	OUTPUT:	1543	OUTPUT:
1259	RETVAL	1544	RETVAL
…		…
1263	CODE:	1548	CODE:
1264	RETVAL = cctx_idle;	1549	RETVAL = cctx_idle;
1265	OUTPUT:	1550	OUTPUT:
1266	RETVAL	1551	RETVAL
1267		1552
		1553	void
		1554	list ()
		1555	PPCODE:
		1556	{
		1557	struct coro *coro;
		1558	for (coro = coro_first; coro; coro = coro->next)
		1559	if (coro->hv)
		1560	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1561	}
		1562
		1563	void
		1564	call (Coro::State coro, SV *coderef)
		1565	ALIAS:
		1566	eval = 1
		1567	CODE:
		1568	{
		1569	if (coro->mainstack)
		1570	{
		1571	struct coro temp;
		1572	Zero (&temp, 1, struct coro);
		1573	temp.save = CORO_SAVE_ALL;
		1574
		1575	if (!(coro->flags & CF_RUNNING))
		1576	{
		1577	save_perl (aTHX_ &temp);
		1578	load_perl (aTHX_ coro);
		1579	}
		1580
		1581	{
		1582	dSP;
		1583	ENTER;
		1584	SAVETMPS;
		1585	PUSHMARK (SP);
		1586	PUTBACK;
		1587	if (ix)
		1588	eval_sv (coderef, 0);
		1589	else
		1590	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1591	SPAGAIN;
		1592	FREETMPS;
		1593	LEAVE;
		1594	PUTBACK;
		1595	}
		1596
		1597	if (!(coro->flags & CF_RUNNING))
		1598	{
		1599	save_perl (aTHX_ coro);
		1600	load_perl (aTHX_ &temp);
		1601	}
		1602	}
		1603	}
		1604
		1605	SV *
		1606	is_ready (Coro::State coro)
		1607	PROTOTYPE: $
		1608	ALIAS:
		1609	is_ready = CF_READY
		1610	is_running = CF_RUNNING
		1611	is_new = CF_NEW
		1612	is_destroyed = CF_DESTROYED
		1613	CODE:
		1614	RETVAL = boolSV (coro->flags & ix);
		1615	OUTPUT:
		1616	RETVAL
		1617
		1618	void
		1619	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
		1620
		1621	SV *
		1622	has_stack (Coro::State coro)
		1623	PROTOTYPE: $
		1624	CODE:
		1625	RETVAL = boolSV (!!coro->cctx);
		1626	OUTPUT:
		1627	RETVAL
		1628
		1629	int
		1630	is_traced (Coro::State coro)
		1631	PROTOTYPE: $
		1632	CODE:
		1633	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1634	OUTPUT:
		1635	RETVAL
		1636
		1637	IV
		1638	rss (Coro::State coro)
		1639	PROTOTYPE: $
		1640	ALIAS:
		1641	usecount = 1
		1642	CODE:
		1643	switch (ix)
		1644	{
		1645	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1646	case 1: RETVAL = coro->usecount; break;
		1647	}
		1648	OUTPUT:
		1649	RETVAL
		1650
		1651
1268	MODULE = Coro::State PACKAGE = Coro	1652	MODULE = Coro::State PACKAGE = Coro
1269		1653
1270	BOOT:	1654	BOOT:
1271	{	1655	{
1272	int i;	1656	int i;
		1657
		1658	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1659	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1660	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1661
		1662	coro_current = get_sv ("Coro::current", FALSE);
		1663	SvREADONLY_on (coro_current);
1273		1664
1274	coro_stash = gv_stashpv ("Coro", TRUE);	1665	coro_stash = gv_stashpv ("Coro", TRUE);
1275		1666
1276	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1667	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1277	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1668	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1278	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1669	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1279	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1670	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1280	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1671	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1281	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1672	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1282
1283	coro_current = get_sv ("Coro::current", FALSE);
1284	SvREADONLY_on (coro_current);
1285		1673
1286	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1674	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1287	coro_ready[i] = newAV ();	1675	coro_ready[i] = newAV ();
1288		1676
1289	{	1677	{
…		…
1339	CODE:	1727	CODE:
1340	RETVAL = boolSV (api_ready (self));	1728	RETVAL = boolSV (api_ready (self));
1341	OUTPUT:	1729	OUTPUT:
1342	RETVAL	1730	RETVAL
1343		1731
1344	SV *
1345	is_ready (SV *self)
1346	PROTOTYPE: $
1347	CODE:
1348	RETVAL = boolSV (api_is_ready (self));
1349	OUTPUT:
1350	RETVAL
1351
1352	int	1732	int
1353	nready (...)	1733	nready (...)
1354	PROTOTYPE:	1734	PROTOTYPE:
1355	CODE:	1735	CODE:
1356	RETVAL = coro_nready;	1736	RETVAL = coro_nready;
1357	OUTPUT:	1737	OUTPUT:
1358	RETVAL	1738	RETVAL
1359		1739
		1740	# for async_pool speedup
		1741	void
		1742	_pool_1 (SV *cb)
		1743	CODE:
		1744	{
		1745	int i, len;
		1746	HV *hv = (HV *)SvRV (coro_current);
		1747	AV *defav = GvAV (PL_defgv);
		1748	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1749	AV *invoke_av;
		1750
		1751	if (!invoke)
		1752	croak ("\3terminate\2\n");
		1753
		1754	hv_store (hv, "desc", sizeof ("desc") - 1,
		1755	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1756
		1757	invoke_av = (AV *)SvRV (invoke);
		1758	len = av_len (invoke_av);
		1759
		1760	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1761
		1762	if (len > 0)
		1763	{
		1764	av_fill (defav, len - 1);
		1765	for (i = 0; i < len; ++i)
		1766	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1767	}
		1768
		1769	SvREFCNT_dec (invoke);
		1770	}
		1771
		1772	void
		1773	_pool_2 (SV *cb)
		1774	CODE:
		1775	{
		1776	struct coro *coro = SvSTATE (coro_current);
		1777
		1778	sv_setsv (cb, &PL_sv_undef);
		1779
		1780	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1781	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1782	croak ("\3terminate\2\n");
		1783
		1784	av_clear (GvAV (PL_defgv));
		1785	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1786	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1787
		1788	coro->save = CORO_SAVE_DEF;
		1789	coro->prio = 0;
		1790
		1791	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1792	api_trace (coro_current, 0);
		1793
		1794	av_push (av_async_pool, newSVsv (coro_current));
		1795	}
		1796
		1797
1360	MODULE = Coro::State PACKAGE = Coro::AIO	1798	MODULE = Coro::State PACKAGE = Coro::AIO
1361		1799
1362	SV *	1800	SV *
1363	_get_state ()	1801	_get_state ()
1364	CODE:	1802	CODE:

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