[ViewVC] Diff of: 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 1.190 by root, Fri Oct 5 20:39:39 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
…		…
70	/* 5.8.7 */	75	/* 5.8.7 */
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
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	85	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	86	# undef CORO_STACKGUARD
77	#endif	87	#endif
78		88
79	#ifndef STACKGUARD	89	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	90	# define CORO_STACKGUARD 0
81	#endif	91	#endif
82		92
83	/* prefer perl internal functions over our own? */	93	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	94	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	95	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	96	#endif
87		97
88	/* The next macro should declare a variable stacklevel that contains and approximation	98	/* 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	99	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	100	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	101	#define STACKLEVEL ((void *)&stacklevel)
93		102
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	103	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		104
96	#if __GNUC__ >= 3	105	#if __GNUC__ >= 3
…		…
121	I32 laststype;	130	I32 laststype;
122	int laststatval;	131	int laststatval;
123	Stat_t statcache;	132	Stat_t statcache;
124	};	133	};
125		134
		135	static size_t coro_stacksize = CORO_STACKSIZE;
126	static struct CoroAPI coroapi;	136	static struct CoroAPI coroapi;
127	static AV main_mainstack; / used to differentiate between $main and others */	137	static AV main_mainstack; / used to differentiate between $main and others */
		138	static JMPENV *main_top_env;
128	static HV coro_state_stash, coro_stash;	139	static HV coro_state_stash, coro_stash;
129	static SV coro_mortal; / will be freed after next transfer */	140	static SV coro_mortal; / will be freed after next transfer */
130		141
		142	static GV irsgv; / $/ */
		143	static GV stdoutgv; / STDOUT /
		144
		145	/* async_pool helper stuff */
		146	static SV *sv_pool_rss;
		147	static SV *sv_pool_size;
		148	static AV *av_async_pool;
		149
131	static struct coro_cctx *cctx_first;	150	static struct coro_cctx *cctx_first;
132	static int cctx_count, cctx_idle;	151	static int cctx_count, cctx_idle;
		152
		153	enum {
		154	CC_MAPPED = 0x01,
		155	CC_NOREUSE = 0x02, /* throw this away after tracing */
		156	CC_TRACE = 0x04,
		157	CC_TRACE_SUB = 0x08, /* trace sub calls */
		158	CC_TRACE_LINE = 0x10, /* trace each statement */
		159	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		160	};
133		161
134	/* this is a structure representing a c-level coroutine */	162	/* this is a structure representing a c-level coroutine */
135	typedef struct coro_cctx {	163	typedef struct coro_cctx {
136	struct coro_cctx *next;	164	struct coro_cctx *next;
137		165
138	/* the stack */	166	/* the stack */
139	void *sptr;	167	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	168	size_t ssize;
141		169
142	/* cpu state */	170	/* cpu state */
143	void idle_sp; / sp of top-level transfer/schedule/cede call */	171	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 */	172	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
145	JMPENV *top_env;	173	JMPENV *top_env;
146	coro_context cctx;	174	coro_context cctx;
147		175
148	int inuse;
149
150	#if USE_VALGRIND	176	#if CORO_USE_VALGRIND
151	int valgrind_id;	177	int valgrind_id;
152	#endif	178	#endif
		179	unsigned char flags;
153	} coro_cctx;	180	} coro_cctx;
154		181
155	enum {	182	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	183	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	184	CF_READY = 0x0002, /* coroutine is ready */
…		…
165	coro_cctx *cctx;	192	coro_cctx *cctx;
166		193
167	/* data associated with this coroutine (initial args) */	194	/* data associated with this coroutine (initial args) */
168	AV *args;	195	AV *args;
169	int refcnt;	196	int refcnt;
170	int save; /* CORO_SAVE flags */
171	int flags; /* CF_ flags */	197	int flags; /* CF_ flags */
172		198
173	/* optionally saved, might be zero */	199	/* optionally saved, might be zero */
174	AV defav; / @_ */	200	AV defav; / @_ */
175	SV defsv; / $_ */	201	SV defsv; / $_ */
176	SV errsv; / $@ */	202	SV errsv; / $@ */
		203	SV deffh; / default filehandle */
177	SV irssv; / $/ */	204	SV irssv; / $/ */
178	SV irssv_sv; / real $/ cache */	205	SV irssv_sv; / real $/ cache */
179		206
180	#define VAR(name,type) type name;	207	#define VAR(name,type) type name;
181	# include "state.h"	208	# include "state.h"
182	#undef VAR	209	#undef VAR
183		210
		211	/* statistics */
		212	int usecount; /* number of transfers to this coro */
		213
184	/* coro process data */	214	/* coro process data */
185	int prio;	215	int prio;
		216	//SV *throw;
		217
		218	/* async_pool */
		219	SV *saved_deffh;
		220
		221	/* linked list */
		222	struct coro next, prev;
		223	HV hv; / the perl hash associated with this coro, if any */
186	};	224	};
187		225
188	typedef struct coro *Coro__State;	226	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	227	typedef struct coro *Coro__State_or_hashref;
190		228
…		…
199		237
200	/* for Coro.pm */	238	/* for Coro.pm */
201	static SV *coro_current;	239	static SV *coro_current;
202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	240	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203	static int coro_nready;	241	static int coro_nready;
		242	static struct coro *coro_first;
204		243
205	/ lowlevel stuff ********************************************************/	244	/ lowlevel stuff ********************************************************/
206		245
207	static AV *	246	static AV *
208	coro_clone_padlist (CV *cv)	247	coro_clone_padlist (pTHX_ CV *cv)
209	{	248	{
210	AV *padlist = CvPADLIST (cv);	249	AV *padlist = CvPADLIST (cv);
211	AV newpadlist, newpad;	250	AV newpadlist, newpad;
212		251
213	newpadlist = newAV ();	252	newpadlist = newAV ();
…		…
225		264
226	return newpadlist;	265	return newpadlist;
227	}	266	}
228		267
229	static void	268	static void
230	free_padlist (AV *padlist)	269	free_padlist (pTHX_ AV *padlist)
231	{	270	{
232	/* may be during global destruction */	271	/* may be during global destruction */
233	if (SvREFCNT (padlist))	272	if (SvREFCNT (padlist))
234	{	273	{
235	I32 i = AvFILLp (padlist);	274	I32 i = AvFILLp (padlist);
…		…
256	AV *padlist;	295	AV *padlist;
257	AV av = (AV )mg->mg_obj;	296	AV av = (AV )mg->mg_obj;
258		297
259	/* casting is fun. */	298	/* casting is fun. */
260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	299	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
261	free_padlist (padlist);	300	free_padlist (aTHX_ padlist);
262		301
263	SvREFCNT_dec (av);	302	SvREFCNT_dec (av);
264		303
265	return 0;	304	return 0;
266	}	305	}
…		…
274	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	313	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
275	? SvMAGIC (cv) \	314	? SvMAGIC (cv) \
276	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	315	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
277	: 0	316	: 0
278		317
		318	static struct coro *
		319	SvSTATE_ (pTHX_ SV *coro)
		320	{
		321	HV *stash;
		322	MAGIC *mg;
		323
		324	if (SvROK (coro))
		325	coro = SvRV (coro);
		326
		327	if (SvTYPE (coro) != SVt_PVHV)
		328	croak ("Coro::State object required");
		329
		330	stash = SvSTASH (coro);
		331	if (stash != coro_stash && stash != coro_state_stash)
		332	{
		333	/* very slow, but rare, check */
		334	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		335	croak ("Coro::State object required");
		336	}
		337
		338	mg = CORO_MAGIC (coro);
		339	return (struct coro *)mg->mg_ptr;
		340	}
		341
		342	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		343
279	/* the next two functions merely cache the padlists */	344	/* the next two functions merely cache the padlists */
280	static void	345	static void
281	get_padlist (CV *cv)	346	get_padlist (pTHX_ CV *cv)
282	{	347	{
283	MAGIC *mg = CORO_MAGIC (cv);	348	MAGIC *mg = CORO_MAGIC (cv);
284	AV *av;	349	AV *av;
285		350
286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	351	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	352	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288	else	353	else
289	{	354	{
290	#if PREFER_PERL_FUNCTIONS	355	#if CORO_PREFER_PERL_FUNCTIONS
291	/* this is probably cleaner, but also slower? */	356	/* this is probably cleaner, but also slower? */
292	CV *cp = Perl_cv_clone (cv);	357	CV *cp = Perl_cv_clone (cv);
293	CvPADLIST (cv) = CvPADLIST (cp);	358	CvPADLIST (cv) = CvPADLIST (cp);
294	CvPADLIST (cp) = 0;	359	CvPADLIST (cp) = 0;
295	SvREFCNT_dec (cp);	360	SvREFCNT_dec (cp);
296	#else	361	#else
297	CvPADLIST (cv) = coro_clone_padlist (cv);	362	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298	#endif	363	#endif
299	}	364	}
300	}	365	}
301		366
302	static void	367	static void
303	put_padlist (CV *cv)	368	put_padlist (pTHX_ CV *cv)
304	{	369	{
305	MAGIC *mg = CORO_MAGIC (cv);	370	MAGIC *mg = CORO_MAGIC (cv);
306	AV *av;	371	AV *av;
307		372
308	if (!mg)	373	if (!mg)
…		…
321	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	386	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
322	}	387	}
323		388
324	/ load & save, init *****************************************************/	389	/ load & save, init *****************************************************/
325		390
326	#define SB do {
327	#define SE } while (0)
328
329	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
330
331	static void	391	static void
332	load_perl (Coro__State c)	392	load_perl (pTHX_ Coro__State c)
333	{	393	{
334	#define VAR(name,type) PL_ ## name = c->name;	394	#define VAR(name,type) PL_ ## name = c->name;
335	# include "state.h"	395	# include "state.h"
336	#undef VAR	396	#undef VAR
337		397
338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	398	GvSV (PL_defgv) = c->defsv;
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	399	GvAV (PL_defgv) = c->defav;
340	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	400	GvSV (PL_errgv) = c->errsv;
341	if (c->irssv)	401	GvSV (irsgv) = c->irssv_sv;
342	{
343	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
344	SvREFCNT_dec (c->irssv);
345	else
346	{
347	REPLACE_SV (PL_rs, c->irssv);
348	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
349	sv_setsv (c->irssv_sv, PL_rs);
350	}
351	}
352		402
353	{	403	{
354	dSP;	404	dSP;
355	CV *cv;	405	CV *cv;
356		406
357	/* now do the ugly restore mess */	407	/* now do the ugly restore mess */
358	while ((cv = (CV *)POPs))	408	while ((cv = (CV *)POPs))
359	{	409	{
360	put_padlist (cv); /* mark this padlist as available */	410	put_padlist (aTHX_ cv); /* mark this padlist as available */
361	CvDEPTH (cv) = PTR2IV (POPs);	411	CvDEPTH (cv) = PTR2IV (POPs);
362	CvPADLIST (cv) = (AV *)POPs;	412	CvPADLIST (cv) = (AV *)POPs;
363	}	413	}
364		414
365	PUTBACK;	415	PUTBACK;
366	}	416	}
367	}	417	}
368		418
369	static void	419	static void
370	save_perl (Coro__State c)	420	save_perl (pTHX_ Coro__State c)
371	{	421	{
372	{	422	{
373	dSP;	423	dSP;
374	I32 cxix = cxstack_ix;	424	I32 cxix = cxstack_ix;
375	PERL_CONTEXT *ccstk = cxstack;	425	PERL_CONTEXT *ccstk = cxstack;
…		…
378	/*	428	/*
379	* the worst thing you can imagine happens first - we have to save	429	* the worst thing you can imagine happens first - we have to save
380	* (and reinitialize) all cv's in the whole callchain :(	430	* (and reinitialize) all cv's in the whole callchain :(
381	*/	431	*/
382		432
383	EXTEND (SP, 3 + 1);
384	PUSHs (Nullsv);	433	XPUSHs (Nullsv);
385	/* this loop was inspired by pp_caller */	434	/* this loop was inspired by pp_caller */
386	for (;;)	435	for (;;)
387	{	436	{
388	while (cxix >= 0)	437	while (cxix >= 0)
389	{	438	{
390	PERL_CONTEXT *cx = &ccstk[cxix--];	439	PERL_CONTEXT *cx = &ccstk[cxix--];
391		440
392	if (CxTYPE (cx) == CXt_SUB)	441	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
393	{	442	{
394	CV *cv = cx->blk_sub.cv;	443	CV *cv = cx->blk_sub.cv;
395		444
396	if (CvDEPTH (cv))	445	if (CvDEPTH (cv))
397	{	446	{
…		…
399	PUSHs ((SV *)CvPADLIST (cv));	448	PUSHs ((SV *)CvPADLIST (cv));
400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	449	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401	PUSHs ((SV *)cv);	450	PUSHs ((SV *)cv);
402		451
403	CvDEPTH (cv) = 0;	452	CvDEPTH (cv) = 0;
404	get_padlist (cv);	453	get_padlist (aTHX_ cv);
405	}	454	}
406	}	455	}
407	}	456	}
408		457
409	if (top_si->si_type == PERLSI_MAIN)	458	if (top_si->si_type == PERLSI_MAIN)
410	break;	459	break;
411		460
412	top_si = top_si->si_prev;	461	top_si = top_si->si_prev;
413	ccstk = top_si->si_cxstack;	462	ccstk = top_si->si_cxstack;
414	cxix = top_si->si_cxix;	463	cxix = top_si->si_cxix;
415	}	464	}
416		465
417	PUTBACK;	466	PUTBACK;
418	}	467	}
419		468
420	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	469	c->defav = GvAV (PL_defgv);
421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	470	c->defsv = DEFSV;
422	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	471	c->errsv = ERRSV;
423	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	472	c->irssv_sv = GvSV (irsgv);
424		473
425	#define VAR(name,type)c->name = PL_ ## name;	474	#define VAR(name,type)c->name = PL_ ## name;
426	# include "state.h"	475	# include "state.h"
427	#undef VAR	476	#undef VAR
428	}	477	}
…		…
431	* allocate various perl stacks. This is an exact copy	480	* allocate various perl stacks. This is an exact copy
432	* of perl.c:init_stacks, except that it uses less memory	481	* of perl.c:init_stacks, except that it uses less memory
433	* on the (sometimes correct) assumption that coroutines do	482	* on the (sometimes correct) assumption that coroutines do
434	* not usually need a lot of stackspace.	483	* not usually need a lot of stackspace.
435	*/	484	*/
436	#if PREFER_PERL_FUNCTIONS	485	#if CORO_PREFER_PERL_FUNCTIONS
437	# define coro_init_stacks init_stacks	486	# define coro_init_stacks init_stacks
438	#else	487	#else
439	static void	488	static void
440	coro_init_stacks ()	489	coro_init_stacks (pTHX)
441	{	490	{
442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	491	PL_curstackinfo = new_stackinfo(64, 6);
443	PL_curstackinfo->si_type = PERLSI_MAIN;	492	PL_curstackinfo->si_type = PERLSI_MAIN;
444	PL_curstack = PL_curstackinfo->si_stack;	493	PL_curstack = PL_curstackinfo->si_stack;
445	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	494	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446		495
447	PL_stack_base = AvARRAY(PL_curstack);	496	PL_stack_base = AvARRAY(PL_curstack);
448	PL_stack_sp = PL_stack_base;	497	PL_stack_sp = PL_stack_base;
449	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	498	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450		499
451	New(50,PL_tmps_stack,128,SV*);	500	New(50,PL_tmps_stack,64,SV*);
452	PL_tmps_floor = -1;	501	PL_tmps_floor = -1;
453	PL_tmps_ix = -1;	502	PL_tmps_ix = -1;
454	PL_tmps_max = 128;	503	PL_tmps_max = 64;
455		504
456	New(54,PL_markstack,32,I32);	505	New(54,PL_markstack,16,I32);
457	PL_markstack_ptr = PL_markstack;	506	PL_markstack_ptr = PL_markstack;
458	PL_markstack_max = PL_markstack + 32;	507	PL_markstack_max = PL_markstack + 16;
459		508
460	#ifdef SET_MARK_OFFSET	509	#ifdef SET_MARK_OFFSET
461	SET_MARK_OFFSET;	510	SET_MARK_OFFSET;
462	#endif	511	#endif
463		512
464	New(54,PL_scopestack,32,I32);	513	New(54,PL_scopestack,16,I32);
465	PL_scopestack_ix = 0;	514	PL_scopestack_ix = 0;
466	PL_scopestack_max = 32;	515	PL_scopestack_max = 16;
467		516
468	New(54,PL_savestack,64,ANY);	517	New(54,PL_savestack,64,ANY);
469	PL_savestack_ix = 0;	518	PL_savestack_ix = 0;
470	PL_savestack_max = 64;	519	PL_savestack_max = 64;
471		520
472	#if !PERL_VERSION_ATLEAST (5,9,0)	521	#if !PERL_VERSION_ATLEAST (5,9,0)
473	New(54,PL_retstack,16,OP*);	522	New(54,PL_retstack,4,OP*);
474	PL_retstack_ix = 0;	523	PL_retstack_ix = 0;
475	PL_retstack_max = 16;	524	PL_retstack_max = 4;
476	#endif	525	#endif
477	}	526	}
478	#endif	527	#endif
479		528
480	/*	529	/*
481	* destroy the stacks, the callchain etc...	530	* destroy the stacks, the callchain etc...
482	*/	531	*/
483	static void	532	static void
484	coro_destroy_stacks ()	533	coro_destroy_stacks (pTHX)
485	{	534	{
486	if (!IN_DESTRUCT)
487	{
488	/* restore all saved variables and stuff */
489	LEAVE_SCOPE (0);
490	assert (PL_tmps_floor == -1);
491
492	/* free all temporaries */
493	FREETMPS;
494	assert (PL_tmps_ix == -1);
495
496	/* unwind all extra stacks */
497	POPSTACK_TO (PL_mainstack);
498
499	/* unwind main stack */
500	dounwind (-1);
501	}
502
503	while (PL_curstackinfo->si_next)	535	while (PL_curstackinfo->si_next)
504	PL_curstackinfo = PL_curstackinfo->si_next;	536	PL_curstackinfo = PL_curstackinfo->si_next;
505		537
506	while (PL_curstackinfo)	538	while (PL_curstackinfo)
507	{	539	{
…		…
522	#if !PERL_VERSION_ATLEAST (5,9,0)	554	#if !PERL_VERSION_ATLEAST (5,9,0)
523	Safefree (PL_retstack);	555	Safefree (PL_retstack);
524	#endif	556	#endif
525	}	557	}
526		558
		559	static size_t
		560	coro_rss (pTHX_ struct coro *coro)
		561	{
		562	size_t rss = sizeof (*coro);
		563
		564	if (coro->mainstack)
		565	{
		566	if (coro->flags & CF_RUNNING)
		567	{
		568	#define VAR(name,type)coro->name = PL_ ## name;
		569	# include "state.h"
		570	#undef VAR
		571	}
		572
		573	rss += sizeof (coro->curstackinfo);
		574	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		575	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		576	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		577	rss += coro->tmps_max * sizeof (SV *);
		578	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		579	rss += coro->scopestack_max * sizeof (I32);
		580	rss += coro->savestack_max * sizeof (ANY);
		581
		582	#if !PERL_VERSION_ATLEAST (5,9,0)
		583	rss += coro->retstack_max * sizeof (OP *);
		584	#endif
		585	}
		586
		587	return rss;
		588	}
		589
527	/ coroutine stack handling **********************************************/	590	/ coroutine stack handling **********************************************/
528		591
529	static void	592	static void
530	setup_coro (struct coro *coro)	593	coro_setup (pTHX_ struct coro *coro)
531	{	594	{
532	/*	595	/*
533	* emulate part of the perl startup here.	596	* emulate part of the perl startup here.
534	*/	597	*/
535
536	coro_init_stacks ();	598	coro_init_stacks (aTHX);
537		599
		600	PL_runops = RUNOPS_DEFAULT;
538	PL_curcop = &PL_compiling;	601	PL_curcop = &PL_compiling;
539	PL_in_eval = EVAL_NULL;	602	PL_in_eval = EVAL_NULL;
		603	PL_comppad = 0;
540	PL_curpm = 0;	604	PL_curpm = 0;
541	PL_localizing = 0;	605	PL_localizing = 0;
542	PL_dirty = 0;	606	PL_dirty = 0;
543	PL_restartop = 0;	607	PL_restartop = 0;
		608
		609	GvSV (PL_defgv) = NEWSV (0, 0);
		610	GvAV (PL_defgv) = coro->args; coro->args = 0;
		611	GvSV (PL_errgv) = NEWSV (0, 0);
		612	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		613	PL_rs = newSVsv (GvSV (irsgv));
		614	PL_defoutgv = SvREFCNT_inc (stdoutgv);
544		615
545	{	616	{
546	dSP;	617	dSP;
547	LOGOP myop;	618	LOGOP myop;
548		619
549	SvREFCNT_dec (GvAV (PL_defgv));
550	GvAV (PL_defgv) = coro->args; coro->args = 0;
551
552	Zero (&myop, 1, LOGOP);	620	Zero (&myop, 1, LOGOP);
553	myop.op_next = Nullop;	621	myop.op_next = Nullop;
554	myop.op_flags = OPf_WANT_VOID;	622	myop.op_flags = OPf_WANT_VOID;
555		623
556	PUSHMARK (SP);	624	PUSHMARK (SP);
557	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	625	XPUSHs (av_shift (GvAV (PL_defgv)));
558	PUTBACK;	626	PUTBACK;
559	PL_op = (OP *)&myop;	627	PL_op = (OP *)&myop;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	628	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	629	SPAGAIN;
562	}	630	}
563		631
564	ENTER; /* necessary e.g. for dounwind */	632	ENTER; /* necessary e.g. for dounwind */
565	}	633	}
566		634
567	static void	635	static void
		636	coro_destroy (pTHX_ struct coro *coro)
		637	{
		638	if (!IN_DESTRUCT)
		639	{
		640	/* restore all saved variables and stuff */
		641	LEAVE_SCOPE (0);
		642	assert (PL_tmps_floor == -1);
		643
		644	/* free all temporaries */
		645	FREETMPS;
		646	assert (PL_tmps_ix == -1);
		647
		648	/* unwind all extra stacks */
		649	POPSTACK_TO (PL_mainstack);
		650
		651	/* unwind main stack */
		652	dounwind (-1);
		653	}
		654
		655	SvREFCNT_dec (GvSV (PL_defgv));
		656	SvREFCNT_dec (GvAV (PL_defgv));
		657	SvREFCNT_dec (GvSV (PL_errgv));
		658	SvREFCNT_dec (PL_defoutgv);
		659	SvREFCNT_dec (PL_rs);
		660	SvREFCNT_dec (GvSV (irsgv));
		661
		662	SvREFCNT_dec (coro->saved_deffh);
		663	//SvREFCNT_dec (coro->throw);
		664
		665	coro_destroy_stacks (aTHX);
		666	}
		667
		668	static void
568	free_coro_mortal ()	669	free_coro_mortal (pTHX)
569	{	670	{
570	if (coro_mortal)	671	if (coro_mortal)
571	{	672	{
572	SvREFCNT_dec (coro_mortal);	673	SvREFCNT_dec (coro_mortal);
573	coro_mortal = 0;	674	coro_mortal = 0;
574	}	675	}
575	}	676	}
576		677
		678	static int
		679	runops_trace (pTHX)
		680	{
		681	COP *oldcop = 0;
		682	int oldcxix = -2;
		683	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		684	coro_cctx *cctx = coro->cctx;
		685
		686	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		687	{
		688	PERL_ASYNC_CHECK ();
		689
		690	if (cctx->flags & CC_TRACE_ALL)
		691	{
		692	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		693	{
		694	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		695	SV bot, top;
		696	AV av = newAV (); / return values */
		697	SV **cb;
		698	dSP;
		699
		700	GV *gv = CvGV (cx->blk_sub.cv);
		701	SV *fullname = sv_2mortal (newSV (0));
		702	if (isGV (gv))
		703	gv_efullname3 (fullname, gv, 0);
		704
		705	bot = PL_stack_base + cx->blk_oldsp + 1;
		706	top = cx->blk_gimme == G_ARRAY ? SP + 1
		707	: cx->blk_gimme == G_SCALAR ? bot + 1
		708	: bot;
		709
		710	while (bot < top)
		711	av_push (av, SvREFCNT_inc (*bot++));
		712
		713	PL_runops = RUNOPS_DEFAULT;
		714	ENTER;
		715	SAVETMPS;
		716	EXTEND (SP, 3);
		717	PUSHMARK (SP);
		718	PUSHs (&PL_sv_no);
		719	PUSHs (fullname);
		720	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		721	PUTBACK;
		722	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		723	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		724	SPAGAIN;
		725	FREETMPS;
		726	LEAVE;
		727	PL_runops = runops_trace;
		728	}
		729
		730	if (oldcop != PL_curcop)
		731	{
		732	oldcop = PL_curcop;
		733
		734	if (PL_curcop != &PL_compiling)
		735	{
		736	SV **cb;
		737
		738	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		739	{
		740	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		741
		742	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		743	{
		744	runops_proc_t old_runops = PL_runops;
		745	dSP;
		746	GV *gv = CvGV (cx->blk_sub.cv);
		747	SV *fullname = sv_2mortal (newSV (0));
		748
		749	if (isGV (gv))
		750	gv_efullname3 (fullname, gv, 0);
		751
		752	PL_runops = RUNOPS_DEFAULT;
		753	ENTER;
		754	SAVETMPS;
		755	EXTEND (SP, 3);
		756	PUSHMARK (SP);
		757	PUSHs (&PL_sv_yes);
		758	PUSHs (fullname);
		759	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		760	PUTBACK;
		761	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		762	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		763	SPAGAIN;
		764	FREETMPS;
		765	LEAVE;
		766	PL_runops = runops_trace;
		767	}
		768
		769	oldcxix = cxstack_ix;
		770	}
		771
		772	if (cctx->flags & CC_TRACE_LINE)
		773	{
		774	dSP;
		775
		776	PL_runops = RUNOPS_DEFAULT;
		777	ENTER;
		778	SAVETMPS;
		779	EXTEND (SP, 3);
		780	PL_runops = RUNOPS_DEFAULT;
		781	PUSHMARK (SP);
		782	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		783	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		784	PUTBACK;
		785	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		786	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		787	SPAGAIN;
		788	FREETMPS;
		789	LEAVE;
		790	PL_runops = runops_trace;
		791	}
		792	}
		793	}
		794	}
		795	}
		796
		797	TAINT_NOT;
		798	return 0;
		799	}
		800
577	/* inject a fake call to Coro::State::_cctx_init into the execution */	801	/* inject a fake call to Coro::State::_cctx_init into the execution */
		802	/* _cctx_init should be careful, as it could be called at almost any time */
		803	/* during execution of a perl program */
578	static void NOINLINE	804	static void NOINLINE
579	prepare_cctx (coro_cctx *cctx)	805	prepare_cctx (pTHX_ coro_cctx *cctx)
580	{	806	{
581	dSP;	807	dSP;
582	LOGOP myop;	808	LOGOP myop;
		809
		810	PL_top_env = &PL_start_env;
		811
		812	if (cctx->flags & CC_TRACE)
		813	PL_runops = runops_trace;
583		814
584	Zero (&myop, 1, LOGOP);	815	Zero (&myop, 1, LOGOP);
585	myop.op_next = PL_op;	816	myop.op_next = PL_op;
586	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	817	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
587		818
…		…
593	PL_op = (OP *)&myop;	824	PL_op = (OP *)&myop;
594	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	825	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595	SPAGAIN;	826	SPAGAIN;
596	}	827	}
597		828
		829	/*
		830	* this is a _very_ stripped down perl interpreter ;)
		831	*/
598	static void	832	static void
599	coro_run (void *arg)	833	coro_run (void *arg)
600	{	834	{
		835	dTHX;
		836
601	/* coro_run is the alternative tail of transfer(), so unlock here. */	837	/* coro_run is the alternative tail of transfer(), so unlock here. */
602	UNLOCK;	838	UNLOCK;
603		839
604	/*	840	/* we now skip the entersub that lead to transfer() */
605	* this is a _very_ stripped down perl interpreter ;)	841	PL_op = PL_op->op_next;
606	*/
607	PL_top_env = &PL_start_env;
608		842
609	/* inject call to cctx_init */	843	/* inject a fake subroutine call to cctx_init */
610	prepare_cctx ((coro_cctx *)arg);	844	prepare_cctx (aTHX_ (coro_cctx *)arg);
611		845
612	/* somebody will hit me for both perl_run and PL_restartop */	846	/* somebody or something will hit me for both perl_run and PL_restartop */
613	PL_restartop = PL_op;	847	PL_restartop = PL_op;
614	perl_run (PL_curinterp);	848	perl_run (PL_curinterp);
615		849
616	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	850	/*
617	abort ();	851	* If perl-run returns we assume exit() was being called or the coro
		852	* fell off the end, which seems to be the only valid (non-bug)
		853	* reason for perl_run to return. We try to exit by jumping to the
		854	* bootstrap-time "top" top_env, as we cannot restore the "main"
		855	* coroutine as Coro has no such concept
		856	*/
		857	PL_top_env = main_top_env;
		858	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
618	}	859	}
619		860
620	static coro_cctx *	861	static coro_cctx *
621	cctx_new ()	862	cctx_new ()
622	{	863	{
623	coro_cctx *cctx;	864	coro_cctx *cctx;
		865	void *stack_start;
		866	size_t stack_size;
624		867
625	++cctx_count;	868	++cctx_count;
626		869
627	Newz (0, cctx, 1, coro_cctx);	870	Newz (0, cctx, 1, coro_cctx);
628		871
629	#if HAVE_MMAP	872	#if HAVE_MMAP
630		873
631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	874	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632	/* mmap supposedly does allocate-on-write for us */	875	/* 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);	876	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
634		877
635	if (cctx->sptr == (void *)-1)	878	if (cctx->sptr != (void *)-1)
636	{
637	perror ("FATAL: unable to mmap stack for coroutine");
638	_exit (EXIT_FAILURE);
639	}	879	{
640
641	# if STACKGUARD	880	# if CORO_STACKGUARD
642	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	881	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643	# endif	882	# endif
		883	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		884	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		885	cctx->flags \|= CC_MAPPED;
		886	}
		887	else
		888	#endif
		889	{
		890	cctx->ssize = coro_stacksize * (long)sizeof (long);
		891	New (0, cctx->sptr, coro_stacksize, long);
644		892
645	#else
646
647	cctx->ssize = STACKSIZE * (long)sizeof (long);
648	New (0, cctx->sptr, STACKSIZE, long);
649
650	if (!cctx->sptr)	893	if (!cctx->sptr)
651	{	894	{
652	perror ("FATAL: unable to malloc stack for coroutine");	895	perror ("FATAL: unable to allocate stack for coroutine");
653	_exit (EXIT_FAILURE);	896	_exit (EXIT_FAILURE);
654	}	897	}
655		898
656	#endif	899	stack_start = cctx->sptr;
		900	stack_size = cctx->ssize;
		901	}
657		902
658	#if USE_VALGRIND	903	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);	904	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
666		905
667	return cctx;	906	return cctx;
668	}	907	}
669		908
670	static void	909	static void
…		…
673	if (!cctx)	912	if (!cctx)
674	return;	913	return;
675		914
676	--cctx_count;	915	--cctx_count;
677		916
678	#if USE_VALGRIND	917	#if CORO_USE_VALGRIND
679	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	918	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680	#endif	919	#endif
681		920
682	#if HAVE_MMAP	921	#if HAVE_MMAP
		922	if (cctx->flags & CC_MAPPED)
683	munmap (cctx->sptr, cctx->ssize);	923	munmap (cctx->sptr, cctx->ssize);
684	#else	924	else
		925	#endif
685	Safefree (cctx->sptr);	926	Safefree (cctx->sptr);
686	#endif
687		927
688	Safefree (cctx);	928	Safefree (cctx);
689	}	929	}
690		930
691	static coro_cctx *	931	static coro_cctx *
692	cctx_get ()	932	cctx_get (pTHX)
693	{	933	{
694	coro_cctx *cctx;
695
696	if (cctx_first)	934	while (cctx_first)
697	{	935	{
698	cctx = cctx_first;	936	coro_cctx *cctx = cctx_first;
699	cctx_first = cctx->next;	937	cctx_first = cctx->next;
700	--cctx_idle;	938	--cctx_idle;
701	}	939
702	else	940	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
703	{	941	return cctx;
704	cctx = cctx_new ();	942
705	PL_op = PL_op->op_next;	943	cctx_destroy (cctx);
706	}	944	}
707		945
708	return cctx;	946	return cctx_new ();
709	}	947	}
710		948
711	static void	949	static void
712	cctx_put (coro_cctx *cctx)	950	cctx_put (coro_cctx *cctx)
713	{	951	{
…		…
716	{	954	{
717	coro_cctx *first = cctx_first;	955	coro_cctx *first = cctx_first;
718	cctx_first = first->next;	956	cctx_first = first->next;
719	--cctx_idle;	957	--cctx_idle;
720		958
721	assert (!first->inuse);
722	cctx_destroy (first);	959	cctx_destroy (first);
723	}	960	}
724		961
725	++cctx_idle;	962	++cctx_idle;
726	cctx->next = cctx_first;	963	cctx->next = cctx_first;
727	cctx_first = cctx;	964	cctx_first = cctx;
728	}	965	}
729		966
730	/ coroutine switching ***************************************************/	967	/ coroutine switching ***************************************************/
731		968
732	/* never call directly, always through the coro_state_transfer global variable */
733	static void NOINLINE	969	static void NOINLINE
		970	transfer_check (pTHX_ struct coro prev, struct coro next)
		971	{
		972	if (prev != next)
		973	{
		974	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		975	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		976
		977	if (next->flags & CF_RUNNING)
		978	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		979
		980	if (next->flags & CF_DESTROYED)
		981	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		982
		983	if (PL_lex_state != LEX_NOTPARSING)
		984	croak ("Coro::State::transfer called while parsing, but this is not supported");
		985	}
		986	}
		987
		988	/* always use the TRANSFER macro */
		989	static void NOINLINE
734	transfer (struct coro prev, struct coro next)	990	transfer (pTHX_ struct coro prev, struct coro next)
735	{	991	{
736	dSTACKLEVEL;	992	dSTACKLEVEL;
737		993
738	/* sometimes transfer is only called to set idle_sp */	994	/* sometimes transfer is only called to set idle_sp */
739	if (!next)	995	if (!next)
…		…
747		1003
748	if (prev->flags & CF_NEW)	1004	if (prev->flags & CF_NEW)
749	{	1005	{
750	/* create a new empty context */	1006	/* create a new empty context */
751	Newz (0, prev->cctx, 1, coro_cctx);	1007	Newz (0, prev->cctx, 1, coro_cctx);
752	prev->cctx->inuse = 1;
753	prev->flags &= ~CF_NEW;	1008	prev->flags &= ~CF_NEW;
754	prev->flags \|= CF_RUNNING;	1009	prev->flags \|= CF_RUNNING;
755	}	1010	}
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		1011
767	prev->flags &= ~CF_RUNNING;	1012	prev->flags &= ~CF_RUNNING;
768	next->flags \|= CF_RUNNING;	1013	next->flags \|= CF_RUNNING;
769		1014
770	LOCK;	1015	LOCK;
…		…
772	if (next->flags & CF_NEW)	1017	if (next->flags & CF_NEW)
773	{	1018	{
774	/* need to start coroutine */	1019	/* need to start coroutine */
775	next->flags &= ~CF_NEW;	1020	next->flags &= ~CF_NEW;
776	/* first get rid of the old state */	1021	/* first get rid of the old state */
777	save_perl (prev);	1022	save_perl (aTHX_ prev);
778	/* setup coroutine call */	1023	/* setup coroutine call */
779	setup_coro (next);	1024	coro_setup (aTHX_ next);
780	/* need a new stack */
781	assert (!next->cctx);
782	}	1025	}
783	else	1026	else
784	{	1027	{
785	/* coroutine already started */	1028	/* coroutine already started */
786	save_perl (prev);	1029	save_perl (aTHX_ prev);
787	load_perl (next);	1030	load_perl (aTHX_ next);
788	}	1031	}
789		1032
790	prev__cctx = prev->cctx;	1033	prev__cctx = prev->cctx;
791		1034
792	/* possibly "free" the cctx */	1035	/* possibly "free" the cctx */
793	if (prev__cctx->idle_sp == STACKLEVEL)	1036	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
794	{	1037	{
795	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1038	/* 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));	1039	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
797		1040
798	prev->cctx = 0;	1041	prev->cctx = 0;
799		1042
800	cctx_put (prev__cctx);	1043	cctx_put (prev__cctx);
801	prev__cctx->inuse = 0;
802	}	1044	}
803		1045
		1046	++next->usecount;
		1047
804	if (!next->cctx)	1048	if (!next->cctx)
805	{
806	next->cctx = cctx_get ();	1049	next->cctx = cctx_get (aTHX);
807	assert (!next->cctx->inuse);
808	next->cctx->inuse = 1;
809	}
810		1050
811	if (prev__cctx != next->cctx)	1051	if (prev__cctx != next->cctx)
812	{	1052	{
813	prev__cctx->top_env = PL_top_env;	1053	prev__cctx->top_env = PL_top_env;
814	PL_top_env = next->cctx->top_env;	1054	PL_top_env = next->cctx->top_env;
815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1055	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816	}	1056	}
817		1057
818	free_coro_mortal ();	1058	free_coro_mortal (aTHX);
819	UNLOCK;	1059	UNLOCK;
820	}	1060	}
821	}	1061	}
822		1062
823	struct transfer_args	1063	struct transfer_args
824	{	1064	{
825	struct coro prev, next;	1065	struct coro prev, next;
826	};	1066	};
827		1067
828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1068	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1069	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
829		1070
830	/ high level stuff ******************************************************/	1071	/ high level stuff ******************************************************/
831		1072
832	static int	1073	static int
833	coro_state_destroy (struct coro *coro)	1074	coro_state_destroy (pTHX_ struct coro *coro)
834	{	1075	{
835	if (coro->flags & CF_DESTROYED)	1076	if (coro->flags & CF_DESTROYED)
836	return 0;	1077	return 0;
837		1078
838	coro->flags \|= CF_DESTROYED;	1079	coro->flags \|= CF_DESTROYED;
…		…
850		1091
851	if (coro->mainstack && coro->mainstack != main_mainstack)	1092	if (coro->mainstack && coro->mainstack != main_mainstack)
852	{	1093	{
853	struct coro temp;	1094	struct coro temp;
854		1095
855	assert (!(coro->flags & CF_RUNNING));
856
857	Zero (&temp, 1, struct coro);
858	temp.save = CORO_SAVE_ALL;
859
860	if (coro->flags & CF_RUNNING)	1096	if (coro->flags & CF_RUNNING)
861	croak ("FATAL: tried to destroy currently running coroutine");	1097	croak ("FATAL: tried to destroy currently running coroutine");
862		1098
863	save_perl (&temp);	1099	save_perl (aTHX_ &temp);
864	load_perl (coro);	1100	load_perl (aTHX_ coro);
865		1101
866	coro_destroy_stacks ();	1102	coro_destroy (aTHX_ coro);
867		1103
868	load_perl (&temp); /* this will get rid of defsv etc.. */	1104	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
869		1105
870	coro->mainstack = 0;	1106	coro->mainstack = 0;
871	}	1107	}
872		1108
873	cctx_destroy (coro->cctx);	1109	cctx_destroy (coro->cctx);
874	SvREFCNT_dec (coro->args);	1110	SvREFCNT_dec (coro->args);
875		1111
		1112	if (coro->next) coro->next->prev = coro->prev;
		1113	if (coro->prev) coro->prev->next = coro->next;
		1114	if (coro == coro_first) coro_first = coro->next;
		1115
876	return 1;	1116	return 1;
877	}	1117	}
878		1118
879	static int	1119	static int
880	coro_state_free (pTHX_ SV sv, MAGIC mg)	1120	coro_state_free (pTHX_ SV sv, MAGIC mg)
881	{	1121	{
882	struct coro coro = (struct coro )mg->mg_ptr;	1122	struct coro coro = (struct coro )mg->mg_ptr;
883	mg->mg_ptr = 0;	1123	mg->mg_ptr = 0;
884		1124
		1125	coro->hv = 0;
		1126
885	if (--coro->refcnt < 0)	1127	if (--coro->refcnt < 0)
886	{	1128	{
887	coro_state_destroy (coro);	1129	coro_state_destroy (aTHX_ coro);
888	Safefree (coro);	1130	Safefree (coro);
889	}	1131	}
890		1132
891	return 0;	1133	return 0;
892	}	1134	}
…		…
910	#else	1152	#else
911	# define MGf_DUP 0	1153	# define MGf_DUP 0
912	#endif	1154	#endif
913	};	1155	};
914		1156
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	1157	static void
938	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1158	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
939	{	1159	{
940	ta->prev = SvSTATE (prev_sv);	1160	ta->prev = SvSTATE (prev_sv);
941	ta->next = SvSTATE (next_sv);	1161	ta->next = SvSTATE (next_sv);
		1162	TRANSFER_CHECK (*ta);
942	}	1163	}
943		1164
944	static void	1165	static void
945	api_transfer (SV prev_sv, SV next_sv)	1166	api_transfer (SV prev_sv, SV next_sv)
946	{	1167	{
		1168	dTHX;
947	struct transfer_args ta;	1169	struct transfer_args ta;
948		1170
949	prepare_transfer (&ta, prev_sv, next_sv);	1171	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
950	TRANSFER (ta);	1172	TRANSFER (ta);
951	}	1173	}
952		1174
953	static int
954	api_save (SV *coro_sv, int new_save)
955	{
956	struct coro *coro = SvSTATE (coro_sv);
957	int old_save = coro->save;
958
959	if (new_save >= 0)
960	coro->save = new_save;
961
962	return old_save;
963	}
964
965	/ Coro ******************************************************************/	1175	/ Coro ******************************************************************/
966		1176
967	static void	1177	static void
968	coro_enq (SV *coro_sv)	1178	coro_enq (pTHX_ SV *coro_sv)
969	{	1179	{
970	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1180	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
971	}	1181	}
972		1182
973	static SV *	1183	static SV *
974	coro_deq (int min_prio)	1184	coro_deq (pTHX_ int min_prio)
975	{	1185	{
976	int prio = PRIO_MAX - PRIO_MIN;	1186	int prio = PRIO_MAX - PRIO_MIN;
977		1187
978	min_prio -= PRIO_MIN;	1188	min_prio -= PRIO_MIN;
979	if (min_prio < 0)	1189	if (min_prio < 0)
…		…
987	}	1197	}
988		1198
989	static int	1199	static int
990	api_ready (SV *coro_sv)	1200	api_ready (SV *coro_sv)
991	{	1201	{
		1202	dTHX;
992	struct coro *coro;	1203	struct coro *coro;
993		1204
994	if (SvROK (coro_sv))	1205	if (SvROK (coro_sv))
995	coro_sv = SvRV (coro_sv);	1206	coro_sv = SvRV (coro_sv);
996		1207
…		…
1000	return 0;	1211	return 0;
1001		1212
1002	coro->flags \|= CF_READY;	1213	coro->flags \|= CF_READY;
1003		1214
1004	LOCK;	1215	LOCK;
1005	coro_enq (SvREFCNT_inc (coro_sv));	1216	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1006	++coro_nready;	1217	++coro_nready;
1007	UNLOCK;	1218	UNLOCK;
1008		1219
1009	return 1;	1220	return 1;
1010	}	1221	}
1011		1222
1012	static int	1223	static int
1013	api_is_ready (SV *coro_sv)	1224	api_is_ready (SV *coro_sv)
1014	{	1225	{
		1226	dTHX;
1015	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1227	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1016	}	1228	}
1017		1229
1018	static void	1230	static void
1019	prepare_schedule (struct transfer_args *ta)	1231	prepare_schedule (pTHX_ struct transfer_args *ta)
1020	{	1232	{
1021	SV prev_sv, next_sv;	1233	SV prev_sv, next_sv;
1022		1234
1023	for (;;)	1235	for (;;)
1024	{	1236	{
1025	LOCK;	1237	LOCK;
1026	next_sv = coro_deq (PRIO_MIN);	1238	next_sv = coro_deq (aTHX_ PRIO_MIN);
1027		1239
1028	/* nothing to schedule: call the idle handler */	1240	/* nothing to schedule: call the idle handler */
1029	if (!next_sv)	1241	if (!next_sv)
1030	{	1242	{
1031	dSP;	1243	dSP;
…		…
1059	break;	1271	break;
1060	}	1272	}
1061		1273
1062	/* free this only after the transfer */	1274	/* free this only after the transfer */
1063	prev_sv = SvRV (coro_current);	1275	prev_sv = SvRV (coro_current);
1064	SvRV_set (coro_current, next_sv);
1065	ta->prev = SvSTATE (prev_sv);	1276	ta->prev = SvSTATE (prev_sv);
1066		1277	TRANSFER_CHECK (*ta);
1067	assert (ta->next->flags & CF_READY);	1278	assert (ta->next->flags & CF_READY);
1068	ta->next->flags &= ~CF_READY;	1279	ta->next->flags &= ~CF_READY;
		1280	SvRV_set (coro_current, next_sv);
1069		1281
1070	LOCK;	1282	LOCK;
1071	free_coro_mortal ();	1283	free_coro_mortal (aTHX);
1072	coro_mortal = prev_sv;	1284	coro_mortal = prev_sv;
1073	UNLOCK;	1285	UNLOCK;
1074	}	1286	}
1075		1287
1076	static void	1288	static void
1077	prepare_cede (struct transfer_args *ta)	1289	prepare_cede (pTHX_ struct transfer_args *ta)
1078	{	1290	{
1079	api_ready (coro_current);	1291	api_ready (coro_current);
1080	prepare_schedule (ta);	1292	prepare_schedule (aTHX_ ta);
1081	}	1293	}
1082		1294
1083	static int	1295	static int
1084	prepare_cede_notself (struct transfer_args *ta)	1296	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1085	{	1297	{
1086	if (coro_nready)	1298	if (coro_nready)
1087	{	1299	{
1088	SV *prev = SvRV (coro_current);	1300	SV *prev = SvRV (coro_current);
1089	prepare_schedule (ta);	1301	prepare_schedule (aTHX_ ta);
1090	api_ready (prev);	1302	api_ready (prev);
1091	return 1;	1303	return 1;
1092	}	1304	}
1093	else	1305	else
1094	return 0;	1306	return 0;
1095	}	1307	}
1096		1308
1097	static void	1309	static void
1098	api_schedule (void)	1310	api_schedule (void)
1099	{	1311	{
		1312	dTHX;
1100	struct transfer_args ta;	1313	struct transfer_args ta;
1101		1314
1102	prepare_schedule (&ta);	1315	prepare_schedule (aTHX_ &ta);
1103	TRANSFER (ta);	1316	TRANSFER (ta);
1104	}	1317	}
1105		1318
1106	static int	1319	static int
1107	api_cede (void)	1320	api_cede (void)
1108	{	1321	{
		1322	dTHX;
1109	struct transfer_args ta;	1323	struct transfer_args ta;
1110		1324
1111	prepare_cede (&ta);	1325	prepare_cede (aTHX_ &ta);
1112		1326
1113	if (ta.prev != ta.next)	1327	if (ta.prev != ta.next)
1114	{	1328	{
1115	TRANSFER (ta);	1329	TRANSFER (ta);
1116	return 1;	1330	return 1;
…		…
1120	}	1334	}
1121		1335
1122	static int	1336	static int
1123	api_cede_notself (void)	1337	api_cede_notself (void)
1124	{	1338	{
		1339	dTHX;
1125	struct transfer_args ta;	1340	struct transfer_args ta;
1126		1341
1127	if (prepare_cede_notself (&ta))	1342	if (prepare_cede_notself (aTHX_ &ta))
1128	{	1343	{
1129	TRANSFER (ta);	1344	TRANSFER (ta);
1130	return 1;	1345	return 1;
1131	}	1346	}
1132	else	1347	else
1133	return 0;	1348	return 0;
1134	}	1349	}
1135		1350
		1351	static void
		1352	api_trace (SV *coro_sv, int flags)
		1353	{
		1354	dTHX;
		1355	struct coro *coro = SvSTATE (coro_sv);
		1356
		1357	if (flags & CC_TRACE)
		1358	{
		1359	if (!coro->cctx)
		1360	coro->cctx = cctx_new ();
		1361	else if (!(coro->cctx->flags & CC_TRACE))
		1362	croak ("cannot enable tracing on coroutine with custom stack");
		1363
		1364	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1365	}
		1366	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1367	{
		1368	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1369
		1370	if (coro->flags & CF_RUNNING)
		1371	PL_runops = RUNOPS_DEFAULT;
		1372	else
		1373	coro->runops = RUNOPS_DEFAULT;
		1374	}
		1375	}
		1376
1136	MODULE = Coro::State PACKAGE = Coro::State	1377	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1137		1378
1138	PROTOTYPES: DISABLE	1379	PROTOTYPES: DISABLE
1139		1380
1140	BOOT:	1381	BOOT:
1141	{	1382	{
1142	#ifdef USE_ITHREADS	1383	#ifdef USE_ITHREADS
1143	MUTEX_INIT (&coro_mutex);	1384	MUTEX_INIT (&coro_mutex);
1144	#endif	1385	#endif
1145	BOOT_PAGESIZE;	1386	BOOT_PAGESIZE;
1146		1387
		1388	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1389	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1390
1147	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1391	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1148		1392
		1393	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1394	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1149	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1395	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1150	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1151	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1152	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1153	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1396	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1154		1397
1155	main_mainstack = PL_mainstack;	1398	main_mainstack = PL_mainstack;
		1399	main_top_env = PL_top_env;
		1400
		1401	while (main_top_env->je_prev)
		1402	main_top_env = main_top_env->je_prev;
1156		1403
1157	coroapi.ver = CORO_API_VERSION;	1404	coroapi.ver = CORO_API_VERSION;
1158	coroapi.transfer = api_transfer;	1405	coroapi.transfer = api_transfer;
1159		1406
1160	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1407	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1167	struct coro *coro;	1414	struct coro *coro;
1168	HV *hv;	1415	HV *hv;
1169	int i;	1416	int i;
1170		1417
1171	Newz (0, coro, 1, struct coro);	1418	Newz (0, coro, 1, struct coro);
1172	coro->args = newAV ();	1419	coro->args = newAV ();
1173	coro->save = CORO_SAVE_ALL;
1174	coro->flags = CF_NEW;	1420	coro->flags = CF_NEW;
1175		1421
		1422	if (coro_first) coro_first->prev = coro;
		1423	coro->next = coro_first;
		1424	coro_first = coro;
		1425
1176	hv = newHV ();	1426	coro->hv = hv = newHV ();
1177	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1427	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));	1428	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1179		1429
1180	for (i = 1; i < items; i++)	1430	for (i = 1; i < items; i++)
1181	av_push (coro->args, newSVsv (ST (i)));	1431	av_push (coro->args, newSVsv (ST (i)));
1182	}	1432	}
1183	OUTPUT:	1433	OUTPUT:
1184	RETVAL	1434	RETVAL
1185		1435
1186	int	1436	# these not obviously related functions are all rolled into the same xs
1187	save (SV *coro, int new_save = -1)	1437	# function to increase chances that they all will call transfer with the same
1188	CODE:	1438	# stack offset
1189	RETVAL = api_save (coro, new_save);
1190	OUTPUT:
1191	RETVAL
1192
1193	void	1439	void
1194	_set_stacklevel (...)	1440	_set_stacklevel (...)
1195	ALIAS:	1441	ALIAS:
1196	Coro::State::transfer = 1	1442	Coro::State::transfer = 1
1197	Coro::schedule = 2	1443	Coro::schedule = 2
…		…
1210		1456
1211	case 1:	1457	case 1:
1212	if (items != 2)	1458	if (items != 2)
1213	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1459	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1214		1460
1215	prepare_transfer (&ta, ST (0), ST (1));	1461	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1216	break;	1462	break;
1217		1463
1218	case 2:	1464	case 2:
1219	prepare_schedule (&ta);	1465	prepare_schedule (aTHX_ &ta);
1220	break;	1466	break;
1221		1467
1222	case 3:	1468	case 3:
1223	prepare_cede (&ta);	1469	prepare_cede (aTHX_ &ta);
1224	break;	1470	break;
1225		1471
1226	case 4:	1472	case 4:
1227	if (!prepare_cede_notself (&ta))	1473	if (!prepare_cede_notself (aTHX_ &ta))
1228	XSRETURN_EMPTY;	1474	XSRETURN_EMPTY;
1229		1475
1230	break;	1476	break;
1231	}	1477	}
1232		1478
…		…
1238	}	1484	}
1239		1485
1240	bool	1486	bool
1241	_destroy (SV *coro_sv)	1487	_destroy (SV *coro_sv)
1242	CODE:	1488	CODE:
1243	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1489	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1244	OUTPUT:	1490	OUTPUT:
1245	RETVAL	1491	RETVAL
1246		1492
1247	void	1493	void
1248	_exit (code)	1494	_exit (code)
…		…
1250	PROTOTYPE: $	1496	PROTOTYPE: $
1251	CODE:	1497	CODE:
1252	_exit (code);	1498	_exit (code);
1253		1499
1254	int	1500	int
		1501	cctx_stacksize (int new_stacksize = 0)
		1502	CODE:
		1503	RETVAL = coro_stacksize;
		1504	if (new_stacksize)
		1505	coro_stacksize = new_stacksize;
		1506	OUTPUT:
		1507	RETVAL
		1508
		1509	int
1255	cctx_count ()	1510	cctx_count ()
1256	CODE:	1511	CODE:
1257	RETVAL = cctx_count;	1512	RETVAL = cctx_count;
1258	OUTPUT:	1513	OUTPUT:
1259	RETVAL	1514	RETVAL
…		…
1263	CODE:	1518	CODE:
1264	RETVAL = cctx_idle;	1519	RETVAL = cctx_idle;
1265	OUTPUT:	1520	OUTPUT:
1266	RETVAL	1521	RETVAL
1267		1522
		1523	void
		1524	list ()
		1525	PPCODE:
		1526	{
		1527	struct coro *coro;
		1528	for (coro = coro_first; coro; coro = coro->next)
		1529	if (coro->hv)
		1530	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1531	}
		1532
		1533	void
		1534	call (Coro::State coro, SV *coderef)
		1535	ALIAS:
		1536	eval = 1
		1537	CODE:
		1538	{
		1539	if (coro->mainstack)
		1540	{
		1541	struct coro temp;
		1542	Zero (&temp, 1, struct coro);
		1543
		1544	if (!(coro->flags & CF_RUNNING))
		1545	{
		1546	save_perl (aTHX_ &temp);
		1547	load_perl (aTHX_ coro);
		1548	}
		1549
		1550	{
		1551	dSP;
		1552	ENTER;
		1553	SAVETMPS;
		1554	PUSHMARK (SP);
		1555	PUTBACK;
		1556	if (ix)
		1557	eval_sv (coderef, 0);
		1558	else
		1559	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1560	SPAGAIN;
		1561	FREETMPS;
		1562	LEAVE;
		1563	PUTBACK;
		1564	}
		1565
		1566	if (!(coro->flags & CF_RUNNING))
		1567	{
		1568	save_perl (aTHX_ coro);
		1569	load_perl (aTHX_ &temp);
		1570	}
		1571	}
		1572	}
		1573
		1574	SV *
		1575	is_ready (Coro::State coro)
		1576	PROTOTYPE: $
		1577	ALIAS:
		1578	is_ready = CF_READY
		1579	is_running = CF_RUNNING
		1580	is_new = CF_NEW
		1581	is_destroyed = CF_DESTROYED
		1582	CODE:
		1583	RETVAL = boolSV (coro->flags & ix);
		1584	OUTPUT:
		1585	RETVAL
		1586
		1587	void
		1588	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1589
		1590	SV *
		1591	has_stack (Coro::State coro)
		1592	PROTOTYPE: $
		1593	CODE:
		1594	RETVAL = boolSV (!!coro->cctx);
		1595	OUTPUT:
		1596	RETVAL
		1597
		1598	int
		1599	is_traced (Coro::State coro)
		1600	PROTOTYPE: $
		1601	CODE:
		1602	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1603	OUTPUT:
		1604	RETVAL
		1605
		1606	IV
		1607	rss (Coro::State coro)
		1608	PROTOTYPE: $
		1609	ALIAS:
		1610	usecount = 1
		1611	CODE:
		1612	switch (ix)
		1613	{
		1614	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1615	case 1: RETVAL = coro->usecount; break;
		1616	}
		1617	OUTPUT:
		1618	RETVAL
		1619
		1620
1268	MODULE = Coro::State PACKAGE = Coro	1621	MODULE = Coro::State PACKAGE = Coro
1269		1622
1270	BOOT:	1623	BOOT:
1271	{	1624	{
1272	int i;	1625	int i;
		1626
		1627	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1628	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1629	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1630
		1631	coro_current = get_sv ("Coro::current", FALSE);
		1632	SvREADONLY_on (coro_current);
1273		1633
1274	coro_stash = gv_stashpv ("Coro", TRUE);	1634	coro_stash = gv_stashpv ("Coro", TRUE);
1275		1635
1276	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1636	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1277	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1637	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1278	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1638	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1279	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1639	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1280	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1640	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1281	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1641	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1282		1642
1283	coro_current = get_sv ("Coro::current", FALSE);
1284	SvREADONLY_on (coro_current);
1285
1286	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1643	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1287	coro_ready[i] = newAV ();	1644	coro_ready[i] = newAV ();
1288		1645
1289	{	1646	{
1290	SV *sv = perl_get_sv("Coro::API", 1);	1647	SV *sv = perl_get_sv("Coro::API", 1);
1291		1648
1292	coroapi.schedule = api_schedule;	1649	coroapi.schedule = api_schedule;
1293	coroapi.save = api_save;
1294	coroapi.cede = api_cede;	1650	coroapi.cede = api_cede;
1295	coroapi.cede_notself = api_cede_notself;	1651	coroapi.cede_notself = api_cede_notself;
1296	coroapi.ready = api_ready;	1652	coroapi.ready = api_ready;
1297	coroapi.is_ready = api_is_ready;	1653	coroapi.is_ready = api_is_ready;
1298	coroapi.nready = &coro_nready;	1654	coroapi.nready = &coro_nready;
…		…
1339	CODE:	1695	CODE:
1340	RETVAL = boolSV (api_ready (self));	1696	RETVAL = boolSV (api_ready (self));
1341	OUTPUT:	1697	OUTPUT:
1342	RETVAL	1698	RETVAL
1343		1699
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	1700	int
1353	nready (...)	1701	nready (...)
1354	PROTOTYPE:	1702	PROTOTYPE:
1355	CODE:	1703	CODE:
1356	RETVAL = coro_nready;	1704	RETVAL = coro_nready;
1357	OUTPUT:	1705	OUTPUT:
1358	RETVAL	1706	RETVAL
1359		1707
		1708	# for async_pool speedup
		1709	void
		1710	_pool_1 (SV *cb)
		1711	CODE:
		1712	{
		1713	struct coro *coro = SvSTATE (coro_current);
		1714	HV hv = (HV )SvRV (coro_current);
		1715	AV *defav = GvAV (PL_defgv);
		1716	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1717	AV *invoke_av;
		1718	int i, len;
		1719
		1720	if (!invoke)
		1721	croak ("\3terminate\2\n");
		1722
		1723	SvREFCNT_dec (coro->saved_deffh);
		1724	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1725
		1726	hv_store (hv, "desc", sizeof ("desc") - 1,
		1727	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1728
		1729	invoke_av = (AV *)SvRV (invoke);
		1730	len = av_len (invoke_av);
		1731
		1732	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1733
		1734	if (len > 0)
		1735	{
		1736	av_fill (defav, len - 1);
		1737	for (i = 0; i < len; ++i)
		1738	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1739	}
		1740
		1741	SvREFCNT_dec (invoke);
		1742	}
		1743
		1744	void
		1745	_pool_2 (SV *cb)
		1746	CODE:
		1747	{
		1748	struct coro *coro = SvSTATE (coro_current);
		1749
		1750	sv_setsv (cb, &PL_sv_undef);
		1751
		1752	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1753	coro->saved_deffh = 0;
		1754
		1755	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1756	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1757	croak ("\3terminate\2\n");
		1758
		1759	av_clear (GvAV (PL_defgv));
		1760	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1761	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1762
		1763	coro->prio = 0;
		1764
		1765	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1766	api_trace (coro_current, 0);
		1767
		1768	av_push (av_async_pool, newSVsv (coro_current));
		1769	}
		1770
		1771
1360	MODULE = Coro::State PACKAGE = Coro::AIO	1772	MODULE = Coro::State PACKAGE = Coro::AIO
1361		1773
1362	SV *	1774	SV *
1363	_get_state ()	1775	_get_state ()
1364	CODE:	1776	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs. Revision 1.190 by root, Fri Oct 5 20:39:39 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs.
Revision 1.190 by root, Fri Oct 5 20:39:39 2007 UTC