[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.137 by root, Sun Jan 14 20:47:53 2007 UTC vs.
Revision 1.186 by root, Fri Oct 5 20:10:42 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	static GV irsgv; / $/ */
		138
		139	/* async_pool helper stuff */
		140	static SV *sv_pool_rss;
		141	static SV *sv_pool_size;
		142	static AV *av_async_pool;
		143
131	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
132	static int cctx_count, cctx_idle;	145	static int cctx_count, cctx_idle;
		146
		147	enum {
		148	CC_MAPPED = 0x01,
		149	CC_NOREUSE = 0x02, /* throw this away after tracing */
		150	CC_TRACE = 0x04,
		151	CC_TRACE_SUB = 0x08, /* trace sub calls */
		152	CC_TRACE_LINE = 0x10, /* trace each statement */
		153	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		154	};
133		155
134	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
135	typedef struct coro_cctx {	157	typedef struct coro_cctx {
136	struct coro_cctx *next;	158	struct coro_cctx *next;
137		159
138	/* the stack */	160	/* the stack */
139	void *sptr;	161	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	162	size_t ssize;
141		163
142	/* cpu state */	164	/* cpu state */
143	void idle_sp; / sp of top-level transfer/schedule/cede call */	165	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 */	166	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
145	JMPENV *top_env;	167	JMPENV *top_env;
146	coro_context cctx;	168	coro_context cctx;
147		169
148	int inuse;
149
150	#if USE_VALGRIND	170	#if CORO_USE_VALGRIND
151	int valgrind_id;	171	int valgrind_id;
152	#endif	172	#endif
		173	unsigned char flags;
153	} coro_cctx;	174	} coro_cctx;
154		175
155	enum {	176	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
…		…
165	coro_cctx *cctx;	186	coro_cctx *cctx;
166		187
167	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
168	AV *args;	189	AV *args;
169	int refcnt;	190	int refcnt;
170	int save; /* CORO_SAVE flags */
171	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
172		192
173	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
174	AV defav; / @_ */	194	AV defav; / @_ */
175	SV defsv; / $_ */	195	SV defsv; / $_ */
176	SV errsv; / $@ */	196	SV errsv; / $@ */
		197	SV deffh; / default filehandle */
177	SV irssv; / $/ */	198	SV irssv; / $/ */
178	SV irssv_sv; / real $/ cache */	199	SV irssv_sv; / real $/ cache */
179		200
180	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
181	# include "state.h"	202	# include "state.h"
182	#undef VAR	203	#undef VAR
183		204
		205	/* statistics */
		206	int usecount; /* number of transfers to this coro */
		207
184	/* coro process data */	208	/* coro process data */
185	int prio;	209	int prio;
		210	//SV *throw;
		211
		212	/* async_pool */
		213	SV *saved_deffh;
		214
		215	/* linked list */
		216	struct coro next, prev;
		217	HV hv; / the perl hash associated with this coro, if any */
186	};	218	};
187		219
188	typedef struct coro *Coro__State;	220	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	221	typedef struct coro *Coro__State_or_hashref;
190		222
…		…
199		231
200	/* for Coro.pm */	232	/* for Coro.pm */
201	static SV *coro_current;	233	static SV *coro_current;
202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203	static int coro_nready;	235	static int coro_nready;
		236	static struct coro *coro_first;
204		237
205	/ lowlevel stuff ********************************************************/	238	/ lowlevel stuff ********************************************************/
206		239
207	static AV *	240	static AV *
208	coro_clone_padlist (CV *cv)	241	coro_clone_padlist (pTHX_ CV *cv)
209	{	242	{
210	AV *padlist = CvPADLIST (cv);	243	AV *padlist = CvPADLIST (cv);
211	AV newpadlist, newpad;	244	AV newpadlist, newpad;
212		245
213	newpadlist = newAV ();	246	newpadlist = newAV ();
…		…
225		258
226	return newpadlist;	259	return newpadlist;
227	}	260	}
228		261
229	static void	262	static void
230	free_padlist (AV *padlist)	263	free_padlist (pTHX_ AV *padlist)
231	{	264	{
232	/* may be during global destruction */	265	/* may be during global destruction */
233	if (SvREFCNT (padlist))	266	if (SvREFCNT (padlist))
234	{	267	{
235	I32 i = AvFILLp (padlist);	268	I32 i = AvFILLp (padlist);
…		…
256	AV *padlist;	289	AV *padlist;
257	AV av = (AV )mg->mg_obj;	290	AV av = (AV )mg->mg_obj;
258		291
259	/* casting is fun. */	292	/* casting is fun. */
260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	293	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
261	free_padlist (padlist);	294	free_padlist (aTHX_ padlist);
262		295
263	SvREFCNT_dec (av);	296	SvREFCNT_dec (av);
264		297
265	return 0;	298	return 0;
266	}	299	}
…		…
274	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
275	? SvMAGIC (cv) \	308	? SvMAGIC (cv) \
276	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
277	: 0	310	: 0
278		311
		312	static struct coro *
		313	SvSTATE_ (pTHX_ SV *coro)
		314	{
		315	HV *stash;
		316	MAGIC *mg;
		317
		318	if (SvROK (coro))
		319	coro = SvRV (coro);
		320
		321	if (SvTYPE (coro) != SVt_PVHV)
		322	croak ("Coro::State object required");
		323
		324	stash = SvSTASH (coro);
		325	if (stash != coro_stash && stash != coro_state_stash)
		326	{
		327	/* very slow, but rare, check */
		328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		329	croak ("Coro::State object required");
		330	}
		331
		332	mg = CORO_MAGIC (coro);
		333	return (struct coro *)mg->mg_ptr;
		334	}
		335
		336	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		337
279	/* the next two functions merely cache the padlists */	338	/* the next two functions merely cache the padlists */
280	static void	339	static void
281	get_padlist (CV *cv)	340	get_padlist (pTHX_ CV *cv)
282	{	341	{
283	MAGIC *mg = CORO_MAGIC (cv);	342	MAGIC *mg = CORO_MAGIC (cv);
284	AV *av;	343	AV *av;
285		344
286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	345	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	346	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288	else	347	else
289	{	348	{
290	#if PREFER_PERL_FUNCTIONS	349	#if CORO_PREFER_PERL_FUNCTIONS
291	/* this is probably cleaner, but also slower? */	350	/* this is probably cleaner, but also slower? */
292	CV *cp = Perl_cv_clone (cv);	351	CV *cp = Perl_cv_clone (cv);
293	CvPADLIST (cv) = CvPADLIST (cp);	352	CvPADLIST (cv) = CvPADLIST (cp);
294	CvPADLIST (cp) = 0;	353	CvPADLIST (cp) = 0;
295	SvREFCNT_dec (cp);	354	SvREFCNT_dec (cp);
296	#else	355	#else
297	CvPADLIST (cv) = coro_clone_padlist (cv);	356	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298	#endif	357	#endif
299	}	358	}
300	}	359	}
301		360
302	static void	361	static void
303	put_padlist (CV *cv)	362	put_padlist (pTHX_ CV *cv)
304	{	363	{
305	MAGIC *mg = CORO_MAGIC (cv);	364	MAGIC *mg = CORO_MAGIC (cv);
306	AV *av;	365	AV *av;
307		366
308	if (!mg)	367	if (!mg)
…		…
321	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
322	}	381	}
323		382
324	/ load & save, init *****************************************************/	383	/ load & save, init *****************************************************/
325		384
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	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	GvSV (PL_defgv) = c->defsv;
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	GvAV (PL_defgv) = c->defav;
340	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	GvSV (PL_errgv) = c->errsv;
341	if (c->irssv)	395	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		396
353	{	397	{
354	dSP;	398	dSP;
355	CV *cv;	399	CV *cv;
356		400
357	/* now do the ugly restore mess */	401	/* now do the ugly restore mess */
358	while ((cv = (CV *)POPs))	402	while ((cv = (CV *)POPs))
359	{	403	{
360	put_padlist (cv); /* mark this padlist as available */	404	put_padlist (aTHX_ cv); /* mark this padlist as available */
361	CvDEPTH (cv) = PTR2IV (POPs);	405	CvDEPTH (cv) = PTR2IV (POPs);
362	CvPADLIST (cv) = (AV *)POPs;	406	CvPADLIST (cv) = (AV *)POPs;
363	}	407	}
364		408
365	PUTBACK;	409	PUTBACK;
366	}	410	}
367	}	411	}
368		412
369	static void	413	static void
370	save_perl (Coro__State c)	414	save_perl (pTHX_ Coro__State c)
371	{	415	{
372	{	416	{
373	dSP;	417	dSP;
374	I32 cxix = cxstack_ix;	418	I32 cxix = cxstack_ix;
375	PERL_CONTEXT *ccstk = cxstack;	419	PERL_CONTEXT *ccstk = cxstack;
…		…
378	/*	422	/*
379	* the worst thing you can imagine happens first - we have to save	423	* the worst thing you can imagine happens first - we have to save
380	* (and reinitialize) all cv's in the whole callchain :(	424	* (and reinitialize) all cv's in the whole callchain :(
381	*/	425	*/
382		426
383	EXTEND (SP, 3 + 1);
384	PUSHs (Nullsv);	427	XPUSHs (Nullsv);
385	/* this loop was inspired by pp_caller */	428	/* this loop was inspired by pp_caller */
386	for (;;)	429	for (;;)
387	{	430	{
388	while (cxix >= 0)	431	while (cxix >= 0)
389	{	432	{
390	PERL_CONTEXT *cx = &ccstk[cxix--];	433	PERL_CONTEXT *cx = &ccstk[cxix--];
391		434
392	if (CxTYPE (cx) == CXt_SUB)	435	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
393	{	436	{
394	CV *cv = cx->blk_sub.cv;	437	CV *cv = cx->blk_sub.cv;
395		438
396	if (CvDEPTH (cv))	439	if (CvDEPTH (cv))
397	{	440	{
…		…
399	PUSHs ((SV *)CvPADLIST (cv));	442	PUSHs ((SV *)CvPADLIST (cv));
400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	443	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401	PUSHs ((SV *)cv);	444	PUSHs ((SV *)cv);
402		445
403	CvDEPTH (cv) = 0;	446	CvDEPTH (cv) = 0;
404	get_padlist (cv);	447	get_padlist (aTHX_ cv);
405	}	448	}
406	}	449	}
407	}	450	}
408		451
409	if (top_si->si_type == PERLSI_MAIN)	452	if (top_si->si_type == PERLSI_MAIN)
410	break;	453	break;
411		454
412	top_si = top_si->si_prev;	455	top_si = top_si->si_prev;
413	ccstk = top_si->si_cxstack;	456	ccstk = top_si->si_cxstack;
414	cxix = top_si->si_cxix;	457	cxix = top_si->si_cxix;
415	}	458	}
416		459
417	PUTBACK;	460	PUTBACK;
418	}	461	}
419		462
420	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	463	c->defav = GvAV (PL_defgv);
421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	464	c->defsv = DEFSV;
422	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	465	c->errsv = ERRSV;
423	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	466	c->irssv_sv = GvSV (irsgv);
424		467
425	#define VAR(name,type)c->name = PL_ ## name;	468	#define VAR(name,type)c->name = PL_ ## name;
426	# include "state.h"	469	# include "state.h"
427	#undef VAR	470	#undef VAR
428	}	471	}
…		…
431	* allocate various perl stacks. This is an exact copy	474	* allocate various perl stacks. This is an exact copy
432	* of perl.c:init_stacks, except that it uses less memory	475	* of perl.c:init_stacks, except that it uses less memory
433	* on the (sometimes correct) assumption that coroutines do	476	* on the (sometimes correct) assumption that coroutines do
434	* not usually need a lot of stackspace.	477	* not usually need a lot of stackspace.
435	*/	478	*/
436	#if PREFER_PERL_FUNCTIONS	479	#if CORO_PREFER_PERL_FUNCTIONS
437	# define coro_init_stacks init_stacks	480	# define coro_init_stacks init_stacks
438	#else	481	#else
439	static void	482	static void
440	coro_init_stacks ()	483	coro_init_stacks (pTHX)
441	{	484	{
442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	485	PL_curstackinfo = new_stackinfo(64, 6);
443	PL_curstackinfo->si_type = PERLSI_MAIN;	486	PL_curstackinfo->si_type = PERLSI_MAIN;
444	PL_curstack = PL_curstackinfo->si_stack;	487	PL_curstack = PL_curstackinfo->si_stack;
445	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	488	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446		489
447	PL_stack_base = AvARRAY(PL_curstack);	490	PL_stack_base = AvARRAY(PL_curstack);
448	PL_stack_sp = PL_stack_base;	491	PL_stack_sp = PL_stack_base;
449	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	492	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450		493
451	New(50,PL_tmps_stack,128,SV*);	494	New(50,PL_tmps_stack,64,SV*);
452	PL_tmps_floor = -1;	495	PL_tmps_floor = -1;
453	PL_tmps_ix = -1;	496	PL_tmps_ix = -1;
454	PL_tmps_max = 128;	497	PL_tmps_max = 64;
455		498
456	New(54,PL_markstack,32,I32);	499	New(54,PL_markstack,16,I32);
457	PL_markstack_ptr = PL_markstack;	500	PL_markstack_ptr = PL_markstack;
458	PL_markstack_max = PL_markstack + 32;	501	PL_markstack_max = PL_markstack + 16;
459		502
460	#ifdef SET_MARK_OFFSET	503	#ifdef SET_MARK_OFFSET
461	SET_MARK_OFFSET;	504	SET_MARK_OFFSET;
462	#endif	505	#endif
463		506
464	New(54,PL_scopestack,32,I32);	507	New(54,PL_scopestack,16,I32);
465	PL_scopestack_ix = 0;	508	PL_scopestack_ix = 0;
466	PL_scopestack_max = 32;	509	PL_scopestack_max = 16;
467		510
468	New(54,PL_savestack,64,ANY);	511	New(54,PL_savestack,64,ANY);
469	PL_savestack_ix = 0;	512	PL_savestack_ix = 0;
470	PL_savestack_max = 64;	513	PL_savestack_max = 64;
471		514
472	#if !PERL_VERSION_ATLEAST (5,9,0)	515	#if !PERL_VERSION_ATLEAST (5,9,0)
473	New(54,PL_retstack,16,OP*);	516	New(54,PL_retstack,4,OP*);
474	PL_retstack_ix = 0;	517	PL_retstack_ix = 0;
475	PL_retstack_max = 16;	518	PL_retstack_max = 4;
476	#endif	519	#endif
477	}	520	}
478	#endif	521	#endif
479		522
480	/*	523	/*
481	* destroy the stacks, the callchain etc...	524	* destroy the stacks, the callchain etc...
482	*/	525	*/
483	static void	526	static void
484	coro_destroy_stacks ()	527	coro_destroy_stacks (pTHX)
485	{	528	{
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)	529	while (PL_curstackinfo->si_next)
504	PL_curstackinfo = PL_curstackinfo->si_next;	530	PL_curstackinfo = PL_curstackinfo->si_next;
505		531
506	while (PL_curstackinfo)	532	while (PL_curstackinfo)
507	{	533	{
…		…
522	#if !PERL_VERSION_ATLEAST (5,9,0)	548	#if !PERL_VERSION_ATLEAST (5,9,0)
523	Safefree (PL_retstack);	549	Safefree (PL_retstack);
524	#endif	550	#endif
525	}	551	}
526		552
		553	static size_t
		554	coro_rss (pTHX_ struct coro *coro)
		555	{
		556	size_t rss = sizeof (*coro);
		557
		558	if (coro->mainstack)
		559	{
		560	if (coro->flags & CF_RUNNING)
		561	{
		562	#define VAR(name,type)coro->name = PL_ ## name;
		563	# include "state.h"
		564	#undef VAR
		565	}
		566
		567	rss += sizeof (coro->curstackinfo);
		568	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		569	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		570	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		571	rss += coro->tmps_max * sizeof (SV *);
		572	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		573	rss += coro->scopestack_max * sizeof (I32);
		574	rss += coro->savestack_max * sizeof (ANY);
		575
		576	#if !PERL_VERSION_ATLEAST (5,9,0)
		577	rss += coro->retstack_max * sizeof (OP *);
		578	#endif
		579	}
		580
		581	return rss;
		582	}
		583
527	/ coroutine stack handling **********************************************/	584	/ coroutine stack handling **********************************************/
528		585
529	static void	586	static void
530	setup_coro (struct coro *coro)	587	coro_setup (pTHX_ struct coro *coro)
531	{	588	{
532	/*	589	/*
533	* emulate part of the perl startup here.	590	* emulate part of the perl startup here.
534	*/	591	*/
535
536	coro_init_stacks ();	592	coro_init_stacks (aTHX);
537		593
		594	PL_runops = RUNOPS_DEFAULT;
538	PL_curcop = &PL_compiling;	595	PL_curcop = &PL_compiling;
539	PL_in_eval = EVAL_NULL;	596	PL_in_eval = EVAL_NULL;
		597	PL_comppad = 0;
540	PL_curpm = 0;	598	PL_curpm = 0;
541	PL_localizing = 0;	599	PL_localizing = 0;
542	PL_dirty = 0;	600	PL_dirty = 0;
543	PL_restartop = 0;	601	PL_restartop = 0;
		602
		603	GvSV (PL_defgv) = NEWSV (0, 0);
		604	GvAV (PL_defgv) = coro->args; coro->args = 0;
		605	GvSV (PL_errgv) = NEWSV (0, 0);
		606	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		607	PL_rs = newSVsv (GvSV (irsgv));
		608
		609	{
		610	IO *io = newIO ();
		611	PL_defoutgv = (GV *)NEWSV (0, 0);
		612	gv_init (PL_defoutgv, coro_state_stash, "stdout", sizeof ("stdout") - 1, 0);
		613	IoTYPE (io) = IoTYPE_WRONLY;
		614	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		615	IoFLAGS (io) \|= IOf_FLUSH;
		616	GvIOp (PL_defoutgv) = io;
		617	}
544		618
545	{	619	{
546	dSP;	620	dSP;
547	LOGOP myop;	621	LOGOP myop;
548		622
549	SvREFCNT_dec (GvAV (PL_defgv));
550	GvAV (PL_defgv) = coro->args; coro->args = 0;
551
552	Zero (&myop, 1, LOGOP);	623	Zero (&myop, 1, LOGOP);
553	myop.op_next = Nullop;	624	myop.op_next = Nullop;
554	myop.op_flags = OPf_WANT_VOID;	625	myop.op_flags = OPf_WANT_VOID;
555		626
556	PUSHMARK (SP);	627	PUSHMARK (SP);
557	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	628	XPUSHs (av_shift (GvAV (PL_defgv)));
558	PUTBACK;	629	PUTBACK;
559	PL_op = (OP *)&myop;	630	PL_op = (OP *)&myop;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	631	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	632	SPAGAIN;
562	}	633	}
563		634
564	ENTER; /* necessary e.g. for dounwind */	635	ENTER; /* necessary e.g. for dounwind */
565	}	636	}
566		637
567	static void	638	static void
		639	coro_destroy (pTHX_ struct coro *coro)
		640	{
		641	if (!IN_DESTRUCT)
		642	{
		643	/* restore all saved variables and stuff */
		644	LEAVE_SCOPE (0);
		645	assert (PL_tmps_floor == -1);
		646
		647	/* free all temporaries */
		648	FREETMPS;
		649	assert (PL_tmps_ix == -1);
		650
		651	/* unwind all extra stacks */
		652	POPSTACK_TO (PL_mainstack);
		653
		654	/* unwind main stack */
		655	dounwind (-1);
		656	}
		657
		658	SvREFCNT_dec (GvSV (PL_defgv));
		659	SvREFCNT_dec (GvAV (PL_defgv));
		660	SvREFCNT_dec (GvSV (PL_errgv));
		661	SvREFCNT_dec (PL_defoutgv);
		662	SvREFCNT_dec (PL_rs);
		663	SvREFCNT_dec (GvSV (irsgv));
		664
		665	SvREFCNT_dec (coro->saved_deffh);
		666	//SvREFCNT_dec (coro->throw);
		667
		668	coro_destroy_stacks (aTHX);
		669	}
		670
		671	static void
568	free_coro_mortal ()	672	free_coro_mortal (pTHX)
569	{	673	{
570	if (coro_mortal)	674	if (coro_mortal)
571	{	675	{
572	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
573	coro_mortal = 0;	677	coro_mortal = 0;
574	}	678	}
575	}	679	}
576		680
		681	static int
		682	runops_trace (pTHX)
		683	{
		684	COP *oldcop = 0;
		685	int oldcxix = -2;
		686	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		687	coro_cctx *cctx = coro->cctx;
		688
		689	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		690	{
		691	PERL_ASYNC_CHECK ();
		692
		693	if (cctx->flags & CC_TRACE_ALL)
		694	{
		695	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		696	{
		697	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		698	SV bot, top;
		699	AV av = newAV (); / return values */
		700	SV **cb;
		701	dSP;
		702
		703	GV *gv = CvGV (cx->blk_sub.cv);
		704	SV *fullname = sv_2mortal (newSV (0));
		705	if (isGV (gv))
		706	gv_efullname3 (fullname, gv, 0);
		707
		708	bot = PL_stack_base + cx->blk_oldsp + 1;
		709	top = cx->blk_gimme == G_ARRAY ? SP + 1
		710	: cx->blk_gimme == G_SCALAR ? bot + 1
		711	: bot;
		712
		713	while (bot < top)
		714	av_push (av, SvREFCNT_inc (*bot++));
		715
		716	PL_runops = RUNOPS_DEFAULT;
		717	ENTER;
		718	SAVETMPS;
		719	EXTEND (SP, 3);
		720	PUSHMARK (SP);
		721	PUSHs (&PL_sv_no);
		722	PUSHs (fullname);
		723	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		724	PUTBACK;
		725	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		726	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		727	SPAGAIN;
		728	FREETMPS;
		729	LEAVE;
		730	PL_runops = runops_trace;
		731	}
		732
		733	if (oldcop != PL_curcop)
		734	{
		735	oldcop = PL_curcop;
		736
		737	if (PL_curcop != &PL_compiling)
		738	{
		739	SV **cb;
		740
		741	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		742	{
		743	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		744
		745	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		746	{
		747	runops_proc_t old_runops = PL_runops;
		748	dSP;
		749	GV *gv = CvGV (cx->blk_sub.cv);
		750	SV *fullname = sv_2mortal (newSV (0));
		751
		752	if (isGV (gv))
		753	gv_efullname3 (fullname, gv, 0);
		754
		755	PL_runops = RUNOPS_DEFAULT;
		756	ENTER;
		757	SAVETMPS;
		758	EXTEND (SP, 3);
		759	PUSHMARK (SP);
		760	PUSHs (&PL_sv_yes);
		761	PUSHs (fullname);
		762	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		763	PUTBACK;
		764	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		765	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		766	SPAGAIN;
		767	FREETMPS;
		768	LEAVE;
		769	PL_runops = runops_trace;
		770	}
		771
		772	oldcxix = cxstack_ix;
		773	}
		774
		775	if (cctx->flags & CC_TRACE_LINE)
		776	{
		777	dSP;
		778
		779	PL_runops = RUNOPS_DEFAULT;
		780	ENTER;
		781	SAVETMPS;
		782	EXTEND (SP, 3);
		783	PL_runops = RUNOPS_DEFAULT;
		784	PUSHMARK (SP);
		785	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		786	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		787	PUTBACK;
		788	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		789	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		790	SPAGAIN;
		791	FREETMPS;
		792	LEAVE;
		793	PL_runops = runops_trace;
		794	}
		795	}
		796	}
		797	}
		798	}
		799
		800	TAINT_NOT;
		801	return 0;
		802	}
		803
577	/* inject a fake call to Coro::State::_cctx_init into the execution */	804	/* inject a fake call to Coro::State::_cctx_init into the execution */
		805	/* _cctx_init should be careful, as it could be called at almost any time */
		806	/* during execution of a perl program */
578	static void NOINLINE	807	static void NOINLINE
579	prepare_cctx (coro_cctx *cctx)	808	prepare_cctx (pTHX_ coro_cctx *cctx)
580	{	809	{
581	dSP;	810	dSP;
582	LOGOP myop;	811	LOGOP myop;
		812
		813	PL_top_env = &PL_start_env;
		814
		815	if (cctx->flags & CC_TRACE)
		816	PL_runops = runops_trace;
583		817
584	Zero (&myop, 1, LOGOP);	818	Zero (&myop, 1, LOGOP);
585	myop.op_next = PL_op;	819	myop.op_next = PL_op;
586	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	820	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
587		821
…		…
593	PL_op = (OP *)&myop;	827	PL_op = (OP *)&myop;
594	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	828	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595	SPAGAIN;	829	SPAGAIN;
596	}	830	}
597		831
		832	/*
		833	* this is a _very_ stripped down perl interpreter ;)
		834	*/
598	static void	835	static void
599	coro_run (void *arg)	836	coro_run (void *arg)
600	{	837	{
		838	dTHX;
		839
601	/* coro_run is the alternative tail of transfer(), so unlock here. */	840	/* coro_run is the alternative tail of transfer(), so unlock here. */
602	UNLOCK;	841	UNLOCK;
603		842
604	/*	843	/* we now skip the entersub that lead to transfer() */
605	* this is a _very_ stripped down perl interpreter ;)	844	PL_op = PL_op->op_next;
606	*/
607	PL_top_env = &PL_start_env;
608		845
609	/* inject call to cctx_init */	846	/* inject a fake subroutine call to cctx_init */
610	prepare_cctx ((coro_cctx *)arg);	847	prepare_cctx (aTHX_ (coro_cctx *)arg);
611		848
612	/* somebody will hit me for both perl_run and PL_restartop */	849	/* somebody or something will hit me for both perl_run and PL_restartop */
613	PL_restartop = PL_op;	850	PL_restartop = PL_op;
614	perl_run (PL_curinterp);	851	perl_run (PL_curinterp);
615		852
616	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	853	/*
617	abort ();	854	* If perl-run returns we assume exit() was being called or the coro
		855	* fell off the end, which seems to be the only valid (non-bug)
		856	* reason for perl_run to return. We try to exit by jumping to the
		857	* bootstrap-time "top" top_env, as we cannot restore the "main"
		858	* coroutine as Coro has no such concept
		859	*/
		860	PL_top_env = main_top_env;
		861	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
618	}	862	}
619		863
620	static coro_cctx *	864	static coro_cctx *
621	cctx_new ()	865	cctx_new ()
622	{	866	{
623	coro_cctx *cctx;	867	coro_cctx *cctx;
		868	void *stack_start;
		869	size_t stack_size;
624		870
625	++cctx_count;	871	++cctx_count;
626		872
627	Newz (0, cctx, 1, coro_cctx);	873	Newz (0, cctx, 1, coro_cctx);
628		874
629	#if HAVE_MMAP	875	#if HAVE_MMAP
630		876
631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	877	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632	/* mmap supposedly does allocate-on-write for us */	878	/* 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);	879	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
634		880
635	if (cctx->sptr == (void *)-1)	881	if (cctx->sptr != (void *)-1)
636	{
637	perror ("FATAL: unable to mmap stack for coroutine");
638	_exit (EXIT_FAILURE);
639	}	882	{
640
641	# if STACKGUARD	883	# if CORO_STACKGUARD
642	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	884	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643	# endif	885	# endif
		886	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		887	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		888	cctx->flags \|= CC_MAPPED;
		889	}
		890	else
		891	#endif
		892	{
		893	cctx->ssize = coro_stacksize * (long)sizeof (long);
		894	New (0, cctx->sptr, coro_stacksize, long);
644		895
645	#else
646
647	cctx->ssize = STACKSIZE * (long)sizeof (long);
648	New (0, cctx->sptr, STACKSIZE, long);
649
650	if (!cctx->sptr)	896	if (!cctx->sptr)
651	{	897	{
652	perror ("FATAL: unable to malloc stack for coroutine");	898	perror ("FATAL: unable to allocate stack for coroutine");
653	_exit (EXIT_FAILURE);	899	_exit (EXIT_FAILURE);
654	}	900	}
655		901
656	#endif	902	stack_start = cctx->sptr;
		903	stack_size = cctx->ssize;
		904	}
657		905
658	#if USE_VALGRIND	906	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);	907	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
666		908
667	return cctx;	909	return cctx;
668	}	910	}
669		911
670	static void	912	static void
…		…
673	if (!cctx)	915	if (!cctx)
674	return;	916	return;
675		917
676	--cctx_count;	918	--cctx_count;
677		919
678	#if USE_VALGRIND	920	#if CORO_USE_VALGRIND
679	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	921	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680	#endif	922	#endif
681		923
682	#if HAVE_MMAP	924	#if HAVE_MMAP
		925	if (cctx->flags & CC_MAPPED)
683	munmap (cctx->sptr, cctx->ssize);	926	munmap (cctx->sptr, cctx->ssize);
684	#else	927	else
		928	#endif
685	Safefree (cctx->sptr);	929	Safefree (cctx->sptr);
686	#endif
687		930
688	Safefree (cctx);	931	Safefree (cctx);
689	}	932	}
690		933
691	static coro_cctx *	934	static coro_cctx *
692	cctx_get ()	935	cctx_get (pTHX)
693	{	936	{
694	coro_cctx *cctx;
695
696	if (cctx_first)	937	while (cctx_first)
697	{	938	{
698	cctx = cctx_first;	939	coro_cctx *cctx = cctx_first;
699	cctx_first = cctx->next;	940	cctx_first = cctx->next;
700	--cctx_idle;	941	--cctx_idle;
701	}	942
702	else	943	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
703	{	944	return cctx;
704	cctx = cctx_new ();	945
705	PL_op = PL_op->op_next;	946	cctx_destroy (cctx);
706	}	947	}
707		948
708	return cctx;	949	return cctx_new ();
709	}	950	}
710		951
711	static void	952	static void
712	cctx_put (coro_cctx *cctx)	953	cctx_put (coro_cctx *cctx)
713	{	954	{
…		…
716	{	957	{
717	coro_cctx *first = cctx_first;	958	coro_cctx *first = cctx_first;
718	cctx_first = first->next;	959	cctx_first = first->next;
719	--cctx_idle;	960	--cctx_idle;
720		961
721	assert (!first->inuse);
722	cctx_destroy (first);	962	cctx_destroy (first);
723	}	963	}
724		964
725	++cctx_idle;	965	++cctx_idle;
726	cctx->next = cctx_first;	966	cctx->next = cctx_first;
727	cctx_first = cctx;	967	cctx_first = cctx;
728	}	968	}
729		969
730	/ coroutine switching ***************************************************/	970	/ coroutine switching ***************************************************/
731		971
732	/* never call directly, always through the coro_state_transfer global variable */
733	static void NOINLINE	972	static void NOINLINE
		973	transfer_check (pTHX_ struct coro prev, struct coro next)
		974	{
		975	if (prev != next)
		976	{
		977	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		978	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		979
		980	if (next->flags & CF_RUNNING)
		981	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		982
		983	if (next->flags & CF_DESTROYED)
		984	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		985
		986	if (PL_lex_state != LEX_NOTPARSING)
		987	croak ("Coro::State::transfer called while parsing, but this is not supported");
		988	}
		989	}
		990
		991	/* always use the TRANSFER macro */
		992	static void NOINLINE
734	transfer (struct coro prev, struct coro next)	993	transfer (pTHX_ struct coro prev, struct coro next)
735	{	994	{
736	dSTACKLEVEL;	995	dSTACKLEVEL;
737		996
738	/* sometimes transfer is only called to set idle_sp */	997	/* sometimes transfer is only called to set idle_sp */
739	if (!next)	998	if (!next)
…		…
747		1006
748	if (prev->flags & CF_NEW)	1007	if (prev->flags & CF_NEW)
749	{	1008	{
750	/* create a new empty context */	1009	/* create a new empty context */
751	Newz (0, prev->cctx, 1, coro_cctx);	1010	Newz (0, prev->cctx, 1, coro_cctx);
752	prev->cctx->inuse = 1;
753	prev->flags &= ~CF_NEW;	1011	prev->flags &= ~CF_NEW;
754	prev->flags \|= CF_RUNNING;	1012	prev->flags \|= CF_RUNNING;
755	}	1013	}
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		1014
767	prev->flags &= ~CF_RUNNING;	1015	prev->flags &= ~CF_RUNNING;
768	next->flags \|= CF_RUNNING;	1016	next->flags \|= CF_RUNNING;
769		1017
770	LOCK;	1018	LOCK;
…		…
772	if (next->flags & CF_NEW)	1020	if (next->flags & CF_NEW)
773	{	1021	{
774	/* need to start coroutine */	1022	/* need to start coroutine */
775	next->flags &= ~CF_NEW;	1023	next->flags &= ~CF_NEW;
776	/* first get rid of the old state */	1024	/* first get rid of the old state */
777	save_perl (prev);	1025	save_perl (aTHX_ prev);
778	/* setup coroutine call */	1026	/* setup coroutine call */
779	setup_coro (next);	1027	coro_setup (aTHX_ next);
780	/* need a new stack */
781	assert (!next->cctx);
782	}	1028	}
783	else	1029	else
784	{	1030	{
785	/* coroutine already started */	1031	/* coroutine already started */
786	save_perl (prev);	1032	save_perl (aTHX_ prev);
787	load_perl (next);	1033	load_perl (aTHX_ next);
788	}	1034	}
789		1035
790	prev__cctx = prev->cctx;	1036	prev__cctx = prev->cctx;
791		1037
792	/* possibly "free" the cctx */	1038	/* possibly "free" the cctx */
793	if (prev__cctx->idle_sp == STACKLEVEL)	1039	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
794	{	1040	{
795	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1041	/* 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));	1042	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
797		1043
798	prev->cctx = 0;	1044	prev->cctx = 0;
799		1045
800	cctx_put (prev__cctx);	1046	cctx_put (prev__cctx);
801	prev__cctx->inuse = 0;
802	}	1047	}
803		1048
		1049	++next->usecount;
		1050
804	if (!next->cctx)	1051	if (!next->cctx)
805	{
806	next->cctx = cctx_get ();	1052	next->cctx = cctx_get (aTHX);
807	assert (!next->cctx->inuse);
808	next->cctx->inuse = 1;
809	}
810		1053
811	if (prev__cctx != next->cctx)	1054	if (prev__cctx != next->cctx)
812	{	1055	{
813	prev__cctx->top_env = PL_top_env;	1056	prev__cctx->top_env = PL_top_env;
814	PL_top_env = next->cctx->top_env;	1057	PL_top_env = next->cctx->top_env;
815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1058	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816	}	1059	}
817		1060
818	free_coro_mortal ();	1061	free_coro_mortal (aTHX);
819	UNLOCK;	1062	UNLOCK;
820	}	1063	}
821	}	1064	}
822		1065
823	struct transfer_args	1066	struct transfer_args
824	{	1067	{
825	struct coro prev, next;	1068	struct coro prev, next;
826	};	1069	};
827		1070
828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1071	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1072	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
829		1073
830	/ high level stuff ******************************************************/	1074	/ high level stuff ******************************************************/
831		1075
832	static int	1076	static int
833	coro_state_destroy (struct coro *coro)	1077	coro_state_destroy (pTHX_ struct coro *coro)
834	{	1078	{
835	if (coro->flags & CF_DESTROYED)	1079	if (coro->flags & CF_DESTROYED)
836	return 0;	1080	return 0;
837		1081
838	coro->flags \|= CF_DESTROYED;	1082	coro->flags \|= CF_DESTROYED;
839		1083
840	if (coro->flags & CF_READY)	1084	if (coro->flags & CF_READY)
841	{	1085	{
842	/* reduce nready, as destroying a ready coro effectively unreadies it */	1086	/* reduce nready, as destroying a ready coro effectively unreadies it */
843	/* alternative: look through all ready queues and remove it */	1087	/* alternative: look through all ready queues and remove the coro */
844	LOCK;	1088	LOCK;
845	--coro_nready;	1089	--coro_nready;
846	UNLOCK;	1090	UNLOCK;
847	}	1091	}
848	else	1092	else
849	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */	1093	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
850		1094
851	if (coro->mainstack && coro->mainstack != main_mainstack)	1095	if (coro->mainstack && coro->mainstack != main_mainstack)
852	{	1096	{
853	assert (!(coro->flags & CF_RUNNING));
854
855	struct coro temp;	1097	struct coro temp;
856	Zero (&temp, 1, struct coro);
857	temp.save = CORO_SAVE_ALL;
858		1098
859	if (coro->flags & CF_RUNNING)	1099	if (coro->flags & CF_RUNNING)
860	croak ("FATAL: tried to destroy currently running coroutine");	1100	croak ("FATAL: tried to destroy currently running coroutine");
861		1101
862	save_perl (&temp);	1102	save_perl (aTHX_ &temp);
863	load_perl (coro);	1103	load_perl (aTHX_ coro);
864		1104
865	coro_destroy_stacks ();	1105	coro_destroy (aTHX_ coro);
866		1106
867	load_perl (&temp); /* this will get rid of defsv etc.. */	1107	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
868		1108
869	coro->mainstack = 0;	1109	coro->mainstack = 0;
870	}	1110	}
871		1111
872	cctx_destroy (coro->cctx);	1112	cctx_destroy (coro->cctx);
873	SvREFCNT_dec (coro->args);	1113	SvREFCNT_dec (coro->args);
874		1114
		1115	if (coro->next) coro->next->prev = coro->prev;
		1116	if (coro->prev) coro->prev->next = coro->next;
		1117	if (coro == coro_first) coro_first = coro->next;
		1118
875	return 1;	1119	return 1;
876	}	1120	}
877		1121
878	static int	1122	static int
879	coro_state_free (pTHX_ SV sv, MAGIC mg)	1123	coro_state_free (pTHX_ SV sv, MAGIC mg)
880	{	1124	{
881	struct coro coro = (struct coro )mg->mg_ptr;	1125	struct coro coro = (struct coro )mg->mg_ptr;
882	mg->mg_ptr = 0;	1126	mg->mg_ptr = 0;
883		1127
		1128	coro->hv = 0;
		1129
884	if (--coro->refcnt < 0)	1130	if (--coro->refcnt < 0)
885	{	1131	{
886	coro_state_destroy (coro);	1132	coro_state_destroy (aTHX_ coro);
887	Safefree (coro);	1133	Safefree (coro);
888	}	1134	}
889		1135
890	return 0;	1136	return 0;
891	}	1137	}
…		…
909	#else	1155	#else
910	# define MGf_DUP 0	1156	# define MGf_DUP 0
911	#endif	1157	#endif
912	};	1158	};
913		1159
914	static struct coro *
915	SvSTATE (SV *coro)
916	{
917	HV *stash;
918	MAGIC *mg;
919
920	if (SvROK (coro))
921	coro = SvRV (coro);
922
923	stash = SvSTASH (coro);
924	if (stash != coro_stash && stash != coro_state_stash)
925	{
926	/* very slow, but rare, check */
927	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
928	croak ("Coro::State object required");
929	}
930
931	mg = SvMAGIC (coro);
932	assert (mg->mg_type == PERL_MAGIC_ext);
933	return (struct coro *)mg->mg_ptr;
934	}
935
936	static void	1160	static void
937	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1161	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
938	{	1162	{
939	ta->prev = SvSTATE (prev_sv);	1163	ta->prev = SvSTATE (prev_sv);
940	ta->next = SvSTATE (next_sv);	1164	ta->next = SvSTATE (next_sv);
		1165	TRANSFER_CHECK (*ta);
941	}	1166	}
942		1167
943	static void	1168	static void
944	api_transfer (SV prev_sv, SV next_sv)	1169	api_transfer (SV prev_sv, SV next_sv)
945	{	1170	{
		1171	dTHX;
946	struct transfer_args ta;	1172	struct transfer_args ta;
947		1173
948	prepare_transfer (&ta, prev_sv, next_sv);	1174	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
949	TRANSFER (ta);	1175	TRANSFER (ta);
950	}	1176	}
951		1177
952	static int
953	api_save (SV *coro_sv, int new_save)
954	{
955	struct coro *coro = SvSTATE (coro_sv);
956	int old_save = coro->save;
957
958	if (new_save >= 0)
959	coro->save = new_save;
960
961	return old_save;
962	}
963
964	/ Coro ******************************************************************/	1178	/ Coro ******************************************************************/
965		1179
966	static void	1180	static void
967	coro_enq (SV *coro_sv)	1181	coro_enq (pTHX_ SV *coro_sv)
968	{	1182	{
969	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1183	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
970	}	1184	}
971		1185
972	static SV *	1186	static SV *
973	coro_deq (int min_prio)	1187	coro_deq (pTHX_ int min_prio)
974	{	1188	{
975	int prio = PRIO_MAX - PRIO_MIN;	1189	int prio = PRIO_MAX - PRIO_MIN;
976		1190
977	min_prio -= PRIO_MIN;	1191	min_prio -= PRIO_MIN;
978	if (min_prio < 0)	1192	if (min_prio < 0)
…		…
986	}	1200	}
987		1201
988	static int	1202	static int
989	api_ready (SV *coro_sv)	1203	api_ready (SV *coro_sv)
990	{	1204	{
		1205	dTHX;
991	struct coro *coro;	1206	struct coro *coro;
992		1207
993	if (SvROK (coro_sv))	1208	if (SvROK (coro_sv))
994	coro_sv = SvRV (coro_sv);	1209	coro_sv = SvRV (coro_sv);
995		1210
…		…
999	return 0;	1214	return 0;
1000		1215
1001	coro->flags \|= CF_READY;	1216	coro->flags \|= CF_READY;
1002		1217
1003	LOCK;	1218	LOCK;
1004	coro_enq (SvREFCNT_inc (coro_sv));	1219	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1005	++coro_nready;	1220	++coro_nready;
1006	UNLOCK;	1221	UNLOCK;
1007		1222
1008	return 1;	1223	return 1;
1009	}	1224	}
1010		1225
1011	static int	1226	static int
1012	api_is_ready (SV *coro_sv)	1227	api_is_ready (SV *coro_sv)
1013	{	1228	{
		1229	dTHX;
1014	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1230	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1015	}	1231	}
1016		1232
1017	static void	1233	static void
1018	prepare_schedule (struct transfer_args *ta)	1234	prepare_schedule (pTHX_ struct transfer_args *ta)
1019	{	1235	{
1020	SV prev_sv, next_sv;	1236	SV prev_sv, next_sv;
1021		1237
1022	for (;;)	1238	for (;;)
1023	{	1239	{
1024	LOCK;	1240	LOCK;
1025	next_sv = coro_deq (PRIO_MIN);	1241	next_sv = coro_deq (aTHX_ PRIO_MIN);
1026	UNLOCK;
1027		1242
1028	/* nothing to schedule: call the idle handler */	1243	/* nothing to schedule: call the idle handler */
1029	if (!next_sv)	1244	if (!next_sv)
1030	{	1245	{
1031	dSP;	1246	dSP;
		1247	UNLOCK;
1032		1248
1033	ENTER;	1249	ENTER;
1034	SAVETMPS;	1250	SAVETMPS;
1035		1251
1036	PUSHMARK (SP);	1252	PUSHMARK (SP);
…		…
1045	ta->next = SvSTATE (next_sv);	1261	ta->next = SvSTATE (next_sv);
1046		1262
1047	/* cannot transfer to destroyed coros, skip and look for next */	1263	/* cannot transfer to destroyed coros, skip and look for next */
1048	if (ta->next->flags & CF_DESTROYED)	1264	if (ta->next->flags & CF_DESTROYED)
1049	{	1265	{
		1266	UNLOCK;
1050	SvREFCNT_dec (next_sv);	1267	SvREFCNT_dec (next_sv);
1051	/* coro_nready is already taken care of by destroy */	1268	/* coro_nready is already taken care of by destroy */
1052	continue;	1269	continue;
1053	}	1270	}
1054		1271
1055	LOCK;
1056	--coro_nready;	1272	--coro_nready;
1057	UNLOCK;	1273	UNLOCK;
1058	break;	1274	break;
1059	}	1275	}
1060		1276
1061	/* free this only after the transfer */	1277	/* free this only after the transfer */
1062	prev_sv = SvRV (coro_current);	1278	prev_sv = SvRV (coro_current);
1063	SvRV_set (coro_current, next_sv);
1064	ta->prev = SvSTATE (prev_sv);	1279	ta->prev = SvSTATE (prev_sv);
1065		1280	TRANSFER_CHECK (*ta);
1066	assert (ta->next->flags & CF_READY);	1281	assert (ta->next->flags & CF_READY);
1067	ta->next->flags &= ~CF_READY;	1282	ta->next->flags &= ~CF_READY;
		1283	SvRV_set (coro_current, next_sv);
1068		1284
1069	LOCK;	1285	LOCK;
1070	free_coro_mortal ();	1286	free_coro_mortal (aTHX);
1071	coro_mortal = prev_sv;	1287	coro_mortal = prev_sv;
1072	UNLOCK;	1288	UNLOCK;
1073	}	1289	}
1074		1290
1075	static void	1291	static void
1076	prepare_cede (struct transfer_args *ta)	1292	prepare_cede (pTHX_ struct transfer_args *ta)
1077	{	1293	{
1078	api_ready (coro_current);	1294	api_ready (coro_current);
1079	prepare_schedule (ta);	1295	prepare_schedule (aTHX_ ta);
1080	}	1296	}
1081		1297
1082	static int	1298	static int
1083	prepare_cede_notself (struct transfer_args *ta)	1299	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1084	{	1300	{
1085	if (coro_nready)	1301	if (coro_nready)
1086	{	1302	{
1087	SV *prev = SvRV (coro_current);	1303	SV *prev = SvRV (coro_current);
1088	prepare_schedule (ta);	1304	prepare_schedule (aTHX_ ta);
1089	api_ready (prev);	1305	api_ready (prev);
1090	return 1;	1306	return 1;
1091	}	1307	}
1092	else	1308	else
1093	return 0;	1309	return 0;
1094	}	1310	}
1095		1311
1096	static void	1312	static void
1097	api_schedule (void)	1313	api_schedule (void)
1098	{	1314	{
		1315	dTHX;
1099	struct transfer_args ta;	1316	struct transfer_args ta;
1100		1317
1101	prepare_schedule (&ta);	1318	prepare_schedule (aTHX_ &ta);
1102	TRANSFER (ta);	1319	TRANSFER (ta);
1103	}	1320	}
1104		1321
1105	static int	1322	static int
1106	api_cede (void)	1323	api_cede (void)
1107	{	1324	{
		1325	dTHX;
1108	struct transfer_args ta;	1326	struct transfer_args ta;
1109		1327
1110	prepare_cede (&ta);	1328	prepare_cede (aTHX_ &ta);
1111		1329
1112	if (ta.prev != ta.next)	1330	if (ta.prev != ta.next)
1113	{	1331	{
1114	TRANSFER (ta);	1332	TRANSFER (ta);
1115	return 1;	1333	return 1;
…		…
1119	}	1337	}
1120		1338
1121	static int	1339	static int
1122	api_cede_notself (void)	1340	api_cede_notself (void)
1123	{	1341	{
		1342	dTHX;
1124	struct transfer_args ta;	1343	struct transfer_args ta;
1125		1344
1126	if (prepare_cede_notself (&ta))	1345	if (prepare_cede_notself (aTHX_ &ta))
1127	{	1346	{
1128	TRANSFER (ta);	1347	TRANSFER (ta);
1129	return 1;	1348	return 1;
1130	}	1349	}
1131	else	1350	else
1132	return 0;	1351	return 0;
1133	}	1352	}
1134		1353
		1354	static void
		1355	api_trace (SV *coro_sv, int flags)
		1356	{
		1357	dTHX;
		1358	struct coro *coro = SvSTATE (coro_sv);
		1359
		1360	if (flags & CC_TRACE)
		1361	{
		1362	if (!coro->cctx)
		1363	coro->cctx = cctx_new ();
		1364	else if (!(coro->cctx->flags & CC_TRACE))
		1365	croak ("cannot enable tracing on coroutine with custom stack");
		1366
		1367	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1368	}
		1369	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1370	{
		1371	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1372
		1373	if (coro->flags & CF_RUNNING)
		1374	PL_runops = RUNOPS_DEFAULT;
		1375	else
		1376	coro->runops = RUNOPS_DEFAULT;
		1377	}
		1378	}
		1379
1135	MODULE = Coro::State PACKAGE = Coro::State	1380	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1136		1381
1137	PROTOTYPES: DISABLE	1382	PROTOTYPES: DISABLE
1138		1383
1139	BOOT:	1384	BOOT:
1140	{	1385	{
1141	#ifdef USE_ITHREADS	1386	#ifdef USE_ITHREADS
1142	MUTEX_INIT (&coro_mutex);	1387	MUTEX_INIT (&coro_mutex);
1143	#endif	1388	#endif
1144	BOOT_PAGESIZE;	1389	BOOT_PAGESIZE;
1145		1390
		1391	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1392
1146	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1393	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1147		1394
		1395	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1396	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1148	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1397	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1149	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1150	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1151	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1152	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1398	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1153		1399
1154	main_mainstack = PL_mainstack;	1400	main_mainstack = PL_mainstack;
		1401	main_top_env = PL_top_env;
		1402
		1403	while (main_top_env->je_prev)
		1404	main_top_env = main_top_env->je_prev;
1155		1405
1156	coroapi.ver = CORO_API_VERSION;	1406	coroapi.ver = CORO_API_VERSION;
1157	coroapi.transfer = api_transfer;	1407	coroapi.transfer = api_transfer;
1158		1408
1159	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1409	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1166	struct coro *coro;	1416	struct coro *coro;
1167	HV *hv;	1417	HV *hv;
1168	int i;	1418	int i;
1169		1419
1170	Newz (0, coro, 1, struct coro);	1420	Newz (0, coro, 1, struct coro);
1171	coro->args = newAV ();	1421	coro->args = newAV ();
1172	coro->save = CORO_SAVE_ALL;
1173	coro->flags = CF_NEW;	1422	coro->flags = CF_NEW;
1174		1423
		1424	if (coro_first) coro_first->prev = coro;
		1425	coro->next = coro_first;
		1426	coro_first = coro;
		1427
1175	hv = newHV ();	1428	coro->hv = hv = newHV ();
1176	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1429	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1177	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1430	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1178		1431
1179	for (i = 1; i < items; i++)	1432	for (i = 1; i < items; i++)
1180	av_push (coro->args, newSVsv (ST (i)));	1433	av_push (coro->args, newSVsv (ST (i)));
1181	}	1434	}
1182	OUTPUT:	1435	OUTPUT:
1183	RETVAL	1436	RETVAL
1184		1437
1185	int	1438	# these not obviously related functions are all rolled into the same xs
1186	save (SV *coro, int new_save = -1)	1439	# function to increase chances that they all will call transfer with the same
1187	CODE:	1440	# stack offset
1188	RETVAL = api_save (coro, new_save);
1189	OUTPUT:
1190	RETVAL
1191
1192	void	1441	void
1193	_set_stacklevel (...)	1442	_set_stacklevel (...)
1194	ALIAS:	1443	ALIAS:
1195	Coro::State::transfer = 1	1444	Coro::State::transfer = 1
1196	Coro::schedule = 2	1445	Coro::schedule = 2
…		…
1209		1458
1210	case 1:	1459	case 1:
1211	if (items != 2)	1460	if (items != 2)
1212	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1461	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1213		1462
1214	prepare_transfer (&ta, ST (0), ST (1));	1463	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1215	break;	1464	break;
1216		1465
1217	case 2:	1466	case 2:
1218	prepare_schedule (&ta);	1467	prepare_schedule (aTHX_ &ta);
1219	break;	1468	break;
1220		1469
1221	case 3:	1470	case 3:
1222	prepare_cede (&ta);	1471	prepare_cede (aTHX_ &ta);
1223	break;	1472	break;
1224		1473
1225	case 4:	1474	case 4:
1226	if (!prepare_cede_notself (&ta))	1475	if (!prepare_cede_notself (aTHX_ &ta))
1227	XSRETURN_EMPTY;	1476	XSRETURN_EMPTY;
1228		1477
1229	break;	1478	break;
1230	}	1479	}
1231		1480
…		…
1237	}	1486	}
1238		1487
1239	bool	1488	bool
1240	_destroy (SV *coro_sv)	1489	_destroy (SV *coro_sv)
1241	CODE:	1490	CODE:
1242	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1491	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1243	OUTPUT:	1492	OUTPUT:
1244	RETVAL	1493	RETVAL
1245		1494
1246	void	1495	void
1247	_exit (code)	1496	_exit (code)
…		…
1249	PROTOTYPE: $	1498	PROTOTYPE: $
1250	CODE:	1499	CODE:
1251	_exit (code);	1500	_exit (code);
1252		1501
1253	int	1502	int
		1503	cctx_stacksize (int new_stacksize = 0)
		1504	CODE:
		1505	RETVAL = coro_stacksize;
		1506	if (new_stacksize)
		1507	coro_stacksize = new_stacksize;
		1508	OUTPUT:
		1509	RETVAL
		1510
		1511	int
1254	cctx_count ()	1512	cctx_count ()
1255	CODE:	1513	CODE:
1256	RETVAL = cctx_count;	1514	RETVAL = cctx_count;
1257	OUTPUT:	1515	OUTPUT:
1258	RETVAL	1516	RETVAL
…		…
1262	CODE:	1520	CODE:
1263	RETVAL = cctx_idle;	1521	RETVAL = cctx_idle;
1264	OUTPUT:	1522	OUTPUT:
1265	RETVAL	1523	RETVAL
1266		1524
		1525	void
		1526	list ()
		1527	PPCODE:
		1528	{
		1529	struct coro *coro;
		1530	for (coro = coro_first; coro; coro = coro->next)
		1531	if (coro->hv)
		1532	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1533	}
		1534
		1535	void
		1536	call (Coro::State coro, SV *coderef)
		1537	ALIAS:
		1538	eval = 1
		1539	CODE:
		1540	{
		1541	if (coro->mainstack)
		1542	{
		1543	struct coro temp;
		1544	Zero (&temp, 1, struct coro);
		1545
		1546	if (!(coro->flags & CF_RUNNING))
		1547	{
		1548	save_perl (aTHX_ &temp);
		1549	load_perl (aTHX_ coro);
		1550	}
		1551
		1552	{
		1553	dSP;
		1554	ENTER;
		1555	SAVETMPS;
		1556	PUSHMARK (SP);
		1557	PUTBACK;
		1558	if (ix)
		1559	eval_sv (coderef, 0);
		1560	else
		1561	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1562	SPAGAIN;
		1563	FREETMPS;
		1564	LEAVE;
		1565	PUTBACK;
		1566	}
		1567
		1568	if (!(coro->flags & CF_RUNNING))
		1569	{
		1570	save_perl (aTHX_ coro);
		1571	load_perl (aTHX_ &temp);
		1572	}
		1573	}
		1574	}
		1575
		1576	SV *
		1577	is_ready (Coro::State coro)
		1578	PROTOTYPE: $
		1579	ALIAS:
		1580	is_ready = CF_READY
		1581	is_running = CF_RUNNING
		1582	is_new = CF_NEW
		1583	is_destroyed = CF_DESTROYED
		1584	CODE:
		1585	RETVAL = boolSV (coro->flags & ix);
		1586	OUTPUT:
		1587	RETVAL
		1588
		1589	void
		1590	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1591
		1592	SV *
		1593	has_stack (Coro::State coro)
		1594	PROTOTYPE: $
		1595	CODE:
		1596	RETVAL = boolSV (!!coro->cctx);
		1597	OUTPUT:
		1598	RETVAL
		1599
		1600	int
		1601	is_traced (Coro::State coro)
		1602	PROTOTYPE: $
		1603	CODE:
		1604	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1605	OUTPUT:
		1606	RETVAL
		1607
		1608	IV
		1609	rss (Coro::State coro)
		1610	PROTOTYPE: $
		1611	ALIAS:
		1612	usecount = 1
		1613	CODE:
		1614	switch (ix)
		1615	{
		1616	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1617	case 1: RETVAL = coro->usecount; break;
		1618	}
		1619	OUTPUT:
		1620	RETVAL
		1621
		1622
1267	MODULE = Coro::State PACKAGE = Coro	1623	MODULE = Coro::State PACKAGE = Coro
1268		1624
1269	BOOT:	1625	BOOT:
1270	{	1626	{
1271	int i;	1627	int i;
		1628
		1629	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1630	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1631	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1632
		1633	coro_current = get_sv ("Coro::current", FALSE);
		1634	SvREADONLY_on (coro_current);
1272		1635
1273	coro_stash = gv_stashpv ("Coro", TRUE);	1636	coro_stash = gv_stashpv ("Coro", TRUE);
1274		1637
1275	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1638	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1276	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1639	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1277	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1640	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1278	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1641	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1279	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1642	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1280	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1643	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1281		1644
1282	coro_current = get_sv ("Coro::current", FALSE);
1283	SvREADONLY_on (coro_current);
1284
1285	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1645	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1286	coro_ready[i] = newAV ();	1646	coro_ready[i] = newAV ();
1287		1647
1288	{	1648	{
1289	SV *sv = perl_get_sv("Coro::API", 1);	1649	SV *sv = perl_get_sv("Coro::API", 1);
1290		1650
1291	coroapi.schedule = api_schedule;	1651	coroapi.schedule = api_schedule;
1292	coroapi.save = api_save;
1293	coroapi.cede = api_cede;	1652	coroapi.cede = api_cede;
1294	coroapi.cede_notself = api_cede_notself;	1653	coroapi.cede_notself = api_cede_notself;
1295	coroapi.ready = api_ready;	1654	coroapi.ready = api_ready;
1296	coroapi.is_ready = api_is_ready;	1655	coroapi.is_ready = api_is_ready;
1297	coroapi.nready = &coro_nready;	1656	coroapi.nready = &coro_nready;
…		…
1338	CODE:	1697	CODE:
1339	RETVAL = boolSV (api_ready (self));	1698	RETVAL = boolSV (api_ready (self));
1340	OUTPUT:	1699	OUTPUT:
1341	RETVAL	1700	RETVAL
1342		1701
1343	SV *
1344	is_ready (SV *self)
1345	PROTOTYPE: $
1346	CODE:
1347	RETVAL = boolSV (api_is_ready (self));
1348	OUTPUT:
1349	RETVAL
1350
1351	int	1702	int
1352	nready (...)	1703	nready (...)
1353	PROTOTYPE:	1704	PROTOTYPE:
1354	CODE:	1705	CODE:
1355	RETVAL = coro_nready;	1706	RETVAL = coro_nready;
1356	OUTPUT:	1707	OUTPUT:
1357	RETVAL	1708	RETVAL
1358		1709
		1710	# for async_pool speedup
		1711	void
		1712	_pool_1 (SV *cb)
		1713	CODE:
		1714	{
		1715	struct coro *coro = SvSTATE (coro_current);
		1716	HV hv = (HV )SvRV (coro_current);
		1717	AV *defav = GvAV (PL_defgv);
		1718	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1719	AV *invoke_av;
		1720	int i, len;
		1721
		1722	if (!invoke)
		1723	croak ("\3terminate\2\n");
		1724
		1725	SvREFCNT_dec (coro->saved_deffh);
		1726	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1727
		1728	hv_store (hv, "desc", sizeof ("desc") - 1,
		1729	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1730
		1731	invoke_av = (AV *)SvRV (invoke);
		1732	len = av_len (invoke_av);
		1733
		1734	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1735
		1736	if (len > 0)
		1737	{
		1738	av_fill (defav, len - 1);
		1739	for (i = 0; i < len; ++i)
		1740	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1741	}
		1742
		1743	SvREFCNT_dec (invoke);
		1744	}
		1745
		1746	void
		1747	_pool_2 (SV *cb)
		1748	CODE:
		1749	{
		1750	struct coro *coro = SvSTATE (coro_current);
		1751
		1752	sv_setsv (cb, &PL_sv_undef);
		1753
		1754	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1755	coro->saved_deffh = 0;
		1756
		1757	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1758	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1759	croak ("\3terminate\2\n");
		1760
		1761	av_clear (GvAV (PL_defgv));
		1762	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1763	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1764
		1765	coro->prio = 0;
		1766
		1767	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1768	api_trace (coro_current, 0);
		1769
		1770	av_push (av_async_pool, newSVsv (coro_current));
		1771	}
		1772
		1773
1359	MODULE = Coro::State PACKAGE = Coro::AIO	1774	MODULE = Coro::State PACKAGE = Coro::AIO
1360		1775
1361	SV *	1776	SV *
1362	_get_state ()	1777	_get_state ()
1363	CODE:	1778	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.137 by root, Sun Jan 14 20:47:53 2007 UTC vs. Revision 1.186 by root, Fri Oct 5 20:10:42 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.137 by root, Sun Jan 14 20:47:53 2007 UTC vs.
Revision 1.186 by root, Fri Oct 5 20:10:42 2007 UTC