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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.132 by root, Fri Dec 29 13:03:05 2006 UTC vs.
Revision 1.183 by root, Wed Oct 3 19:19:06 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# include <valgrind/valgrind.h>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	81	# undef CORO_STACKGUARD
77	#endif	82	#endif
78		83
79	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
81	#endif	86	#endif
82		87
83	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	91	#endif
87		92
88	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macros try to return the current stack pointer, in an as
89	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
93		97
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		99
96	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
112	#else	116	#else
113	# define LOCK (void)0	117	# define LOCK (void)0
114	# define UNLOCK (void)0	118	# define UNLOCK (void)0
115	#endif	119	#endif
116		120
		121	/* helper storage struct for Coro::AIO */
117	struct io_state	122	struct io_state
118	{	123	{
119	int errorno;	124	int errorno;
120	I32 laststype;	125	I32 laststype;
121	int laststatval;	126	int laststatval;
122	Stat_t statcache;	127	Stat_t statcache;
123	};	128	};
124		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
125	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
126	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
127	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
128	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
129		136
		137	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
130	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
131	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	};
132		155
133	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
134	typedef struct coro_cctx {	157	typedef struct coro_cctx {
135	struct coro_cctx *next;	158	struct coro_cctx *next;
136		159
137	/* the stack */	160	/* the stack */
138	void *sptr;	161	void *sptr;
139	long ssize; /* positive == mmap, otherwise malloc */	162	size_t ssize;
140		163
141	/* cpu state */	164	/* cpu state */
142	void idle_sp; / sp of top-level transfer/schedule/cede call */	165	void idle_sp; / sp of top-level transfer/schedule/cede call */
143	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	166	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
144	JMPENV *top_env;	167	JMPENV *top_env;
145	coro_context cctx;	168	coro_context cctx;
146		169
147	int inuse;
148
149	#if USE_VALGRIND	170	#if CORO_USE_VALGRIND
150	int valgrind_id;	171	int valgrind_id;
151	#endif	172	#endif
		173	unsigned char flags;
152	} coro_cctx;	174	} coro_cctx;
153		175
154	enum {	176	enum {
155	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
156	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
157	CF_NEW = 0x0004, /* ahs never been switched to */	179	CF_NEW = 0x0004, /* has never been switched to */
		180	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
158	};	181	};
159		182
160	/* this is a structure representing a perl-level coroutine */	183	/* this is a structure representing a perl-level coroutine */
161	struct coro {	184	struct coro {
162	/* the c coroutine allocated to this perl coroutine, if any */	185	/* the c coroutine allocated to this perl coroutine, if any */
163	coro_cctx *cctx;	186	coro_cctx *cctx;
164		187
165	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
166	AV *args;	189	AV *args;
167	int refcnt;	190	int refcnt;
168	int save; /* CORO_SAVE flags */
169	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
170		192
171	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
172	AV defav; / @_ */	194	AV defav; / @_ */
173	SV defsv; / $_ */	195	SV defsv; / $_ */
174	SV errsv; / $@ */	196	SV errsv; / $@ */
		197	GV deffh; / default filehandle */
175	SV irssv; / $/ */	198	SV irssv; / $/ */
176	SV irssv_sv; / real $/ cache */	199	SV irssv_sv; / real $/ cache */
177		200
178	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
179	# include "state.h"	202	# include "state.h"
180	#undef VAR	203	#undef VAR
181		204
		205	/* statistics */
		206	int usecount; /* number of transfers to this coro */
		207
182	/* coro process data */	208	/* coro process data */
183	int prio;	209	int prio;
		210	//SV *throw;
		211
		212	/* async_pool */
		213	GV *asp_deffh;
		214
		215	/* linked list */
		216	struct coro next, prev;
		217	HV hv; / the perl hash associated with this coro, if any */
184	};	218	};
185		219
186	typedef struct coro *Coro__State;	220	typedef struct coro *Coro__State;
187	typedef struct coro *Coro__State_or_hashref;	221	typedef struct coro *Coro__State_or_hashref;
188		222
		223	/ Coro ******************************************************************/
		224
		225	#define PRIO_MAX 3
		226	#define PRIO_HIGH 1
		227	#define PRIO_NORMAL 0
		228	#define PRIO_LOW -1
		229	#define PRIO_IDLE -3
		230	#define PRIO_MIN -4
		231
		232	/* for Coro.pm */
		233	static SV *coro_current;
		234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		235	static int coro_nready;
		236	static struct coro *coro_first;
		237
		238	/ lowlevel stuff ********************************************************/
		239
189	static AV *	240	static AV *
190	coro_clone_padlist (CV *cv)	241	coro_clone_padlist (pTHX_ CV *cv)
191	{	242	{
192	AV *padlist = CvPADLIST (cv);	243	AV *padlist = CvPADLIST (cv);
193	AV newpadlist, newpad;	244	AV newpadlist, newpad;
194		245
195	newpadlist = newAV ();	246	newpadlist = newAV ();
…		…
207		258
208	return newpadlist;	259	return newpadlist;
209	}	260	}
210		261
211	static void	262	static void
212	free_padlist (AV *padlist)	263	free_padlist (pTHX_ AV *padlist)
213	{	264	{
214	/* may be during global destruction */	265	/* may be during global destruction */
215	if (SvREFCNT (padlist))	266	if (SvREFCNT (padlist))
216	{	267	{
217	I32 i = AvFILLp (padlist);	268	I32 i = AvFILLp (padlist);
…		…
238	AV *padlist;	289	AV *padlist;
239	AV av = (AV )mg->mg_obj;	290	AV av = (AV )mg->mg_obj;
240		291
241	/* casting is fun. */	292	/* casting is fun. */
242	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	293	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
243	free_padlist (padlist);	294	free_padlist (aTHX_ padlist);
244		295
245	SvREFCNT_dec (av);	296	SvREFCNT_dec (av);
246		297
247	return 0;	298	return 0;
248	}	299	}
…		…
256	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
257	? SvMAGIC (cv) \	308	? SvMAGIC (cv) \
258	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
259	: 0	310	: 0
260		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
261	/* the next two functions merely cache the padlists */	338	/* the next two functions merely cache the padlists */
262	static void	339	static void
263	get_padlist (CV *cv)	340	get_padlist (pTHX_ CV *cv)
264	{	341	{
265	MAGIC *mg = CORO_MAGIC (cv);	342	MAGIC *mg = CORO_MAGIC (cv);
266	AV *av;	343	AV *av;
267		344
268	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	345	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
269	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	346	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
270	else	347	else
271	{	348	{
272	#if PREFER_PERL_FUNCTIONS	349	#if CORO_PREFER_PERL_FUNCTIONS
273	/* this is probably cleaner, but also slower? */	350	/* this is probably cleaner, but also slower? */
274	CV *cp = Perl_cv_clone (cv);	351	CV *cp = Perl_cv_clone (cv);
275	CvPADLIST (cv) = CvPADLIST (cp);	352	CvPADLIST (cv) = CvPADLIST (cp);
276	CvPADLIST (cp) = 0;	353	CvPADLIST (cp) = 0;
277	SvREFCNT_dec (cp);	354	SvREFCNT_dec (cp);
278	#else	355	#else
279	CvPADLIST (cv) = coro_clone_padlist (cv);	356	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
280	#endif	357	#endif
281	}	358	}
282	}	359	}
283		360
284	static void	361	static void
285	put_padlist (CV *cv)	362	put_padlist (pTHX_ CV *cv)
286	{	363	{
287	MAGIC *mg = CORO_MAGIC (cv);	364	MAGIC *mg = CORO_MAGIC (cv);
288	AV *av;	365	AV *av;
289		366
290	if (!mg)	367	if (!mg)
…		…
301	av_extend (av, AvMAX (av) + 1);	378	av_extend (av, AvMAX (av) + 1);
302		379
303	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
304	}	381	}
305		382
306	#define SB do {	383	/ load & save, init *****************************************************/
307	#define SE } while (0)
308		384
309	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
310
311	static void	385	static void
312	load_perl (Coro__State c)	386	load_perl (pTHX_ Coro__State c)
313	{	387	{
314	#define VAR(name,type) PL_ ## name = c->name;	388	#define VAR(name,type) PL_ ## name = c->name;
315	# include "state.h"	389	# include "state.h"
316	#undef VAR	390	#undef VAR
317		391
318	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	392	GvSV (PL_defgv) = c->defsv;
319	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	GvAV (PL_defgv) = c->defav;
320	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	GvSV (PL_errgv) = c->errsv;
321	if (c->irssv)	395	PL_defoutgv = c->deffh;
322	{	396	PL_rs = c->irssv;
323	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	397	GvSV (irsgv) = c->irssv_sv;
324	SvREFCNT_dec (c->irssv);
325	else
326	{
327	REPLACE_SV (PL_rs, c->irssv);
328	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
329	sv_setsv (c->irssv_sv, PL_rs);
330	}
331	}
332		398
333	{	399	{
334	dSP;	400	dSP;
335	CV *cv;	401	CV *cv;
336		402
337	/* now do the ugly restore mess */	403	/* now do the ugly restore mess */
338	while ((cv = (CV *)POPs))	404	while ((cv = (CV *)POPs))
339	{	405	{
340	put_padlist (cv); /* mark this padlist as available */	406	put_padlist (aTHX_ cv); /* mark this padlist as available */
341	CvDEPTH (cv) = PTR2IV (POPs);	407	CvDEPTH (cv) = PTR2IV (POPs);
342	CvPADLIST (cv) = (AV *)POPs;	408	CvPADLIST (cv) = (AV *)POPs;
343	}	409	}
344		410
345	PUTBACK;	411	PUTBACK;
346	}	412	}
347	}	413	}
348		414
349	static void	415	static void
350	save_perl (Coro__State c)	416	save_perl (pTHX_ Coro__State c)
351	{	417	{
352	{	418	{
353	dSP;	419	dSP;
354	I32 cxix = cxstack_ix;	420	I32 cxix = cxstack_ix;
355	PERL_CONTEXT *ccstk = cxstack;	421	PERL_CONTEXT *ccstk = cxstack;
…		…
358	/*	424	/*
359	* the worst thing you can imagine happens first - we have to save	425	* the worst thing you can imagine happens first - we have to save
360	* (and reinitialize) all cv's in the whole callchain :(	426	* (and reinitialize) all cv's in the whole callchain :(
361	*/	427	*/
362		428
363	EXTEND (SP, 3 + 1);
364	PUSHs (Nullsv);	429	XPUSHs (Nullsv);
365	/* this loop was inspired by pp_caller */	430	/* this loop was inspired by pp_caller */
366	for (;;)	431	for (;;)
367	{	432	{
368	while (cxix >= 0)	433	while (cxix >= 0)
369	{	434	{
370	PERL_CONTEXT *cx = &ccstk[cxix--];	435	PERL_CONTEXT *cx = &ccstk[cxix--];
371		436
372	if (CxTYPE (cx) == CXt_SUB)	437	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
373	{	438	{
374	CV *cv = cx->blk_sub.cv;	439	CV *cv = cx->blk_sub.cv;
375		440
376	if (CvDEPTH (cv))	441	if (CvDEPTH (cv))
377	{	442	{
…		…
379	PUSHs ((SV *)CvPADLIST (cv));	444	PUSHs ((SV *)CvPADLIST (cv));
380	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	445	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
381	PUSHs ((SV *)cv);	446	PUSHs ((SV *)cv);
382		447
383	CvDEPTH (cv) = 0;	448	CvDEPTH (cv) = 0;
384	get_padlist (cv);	449	get_padlist (aTHX_ cv);
385	}	450	}
386	}	451	}
387	}	452	}
388		453
389	if (top_si->si_type == PERLSI_MAIN)	454	if (top_si->si_type == PERLSI_MAIN)
390	break;	455	break;
391		456
392	top_si = top_si->si_prev;	457	top_si = top_si->si_prev;
393	ccstk = top_si->si_cxstack;	458	ccstk = top_si->si_cxstack;
394	cxix = top_si->si_cxix;	459	cxix = top_si->si_cxix;
395	}	460	}
396		461
397	PUTBACK;	462	PUTBACK;
398	}	463	}
399		464
400	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	465	c->defav = GvAV (PL_defgv);
401	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	466	c->defsv = DEFSV;
402	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	467	c->errsv = ERRSV;
403	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	468	c->deffh = PL_defoutgv;
		469	c->irssv = PL_rs;
		470	c->irssv_sv = GvSV (irsgv);
404		471
405	#define VAR(name,type)c->name = PL_ ## name;	472	#define VAR(name,type)c->name = PL_ ## name;
406	# include "state.h"	473	# include "state.h"
407	#undef VAR	474	#undef VAR
408	}	475	}
…		…
411	* allocate various perl stacks. This is an exact copy	478	* allocate various perl stacks. This is an exact copy
412	* of perl.c:init_stacks, except that it uses less memory	479	* of perl.c:init_stacks, except that it uses less memory
413	* on the (sometimes correct) assumption that coroutines do	480	* on the (sometimes correct) assumption that coroutines do
414	* not usually need a lot of stackspace.	481	* not usually need a lot of stackspace.
415	*/	482	*/
416	#if PREFER_PERL_FUNCTIONS	483	#if CORO_PREFER_PERL_FUNCTIONS
417	# define coro_init_stacks init_stacks	484	# define coro_init_stacks init_stacks
418	#else	485	#else
419	static void	486	static void
420	coro_init_stacks ()	487	coro_init_stacks (pTHX)
421	{	488	{
422	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	489	PL_curstackinfo = new_stackinfo(64, 6);
423	PL_curstackinfo->si_type = PERLSI_MAIN;	490	PL_curstackinfo->si_type = PERLSI_MAIN;
424	PL_curstack = PL_curstackinfo->si_stack;	491	PL_curstack = PL_curstackinfo->si_stack;
425	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	492	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
426		493
427	PL_stack_base = AvARRAY(PL_curstack);	494	PL_stack_base = AvARRAY(PL_curstack);
428	PL_stack_sp = PL_stack_base;	495	PL_stack_sp = PL_stack_base;
429	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	496	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
430		497
431	New(50,PL_tmps_stack,128,SV*);	498	New(50,PL_tmps_stack,64,SV*);
432	PL_tmps_floor = -1;	499	PL_tmps_floor = -1;
433	PL_tmps_ix = -1;	500	PL_tmps_ix = -1;
434	PL_tmps_max = 128;	501	PL_tmps_max = 64;
435		502
436	New(54,PL_markstack,32,I32);	503	New(54,PL_markstack,16,I32);
437	PL_markstack_ptr = PL_markstack;	504	PL_markstack_ptr = PL_markstack;
438	PL_markstack_max = PL_markstack + 32;	505	PL_markstack_max = PL_markstack + 16;
439		506
440	#ifdef SET_MARK_OFFSET	507	#ifdef SET_MARK_OFFSET
441	SET_MARK_OFFSET;	508	SET_MARK_OFFSET;
442	#endif	509	#endif
443		510
444	New(54,PL_scopestack,32,I32);	511	New(54,PL_scopestack,16,I32);
445	PL_scopestack_ix = 0;	512	PL_scopestack_ix = 0;
446	PL_scopestack_max = 32;	513	PL_scopestack_max = 16;
447		514
448	New(54,PL_savestack,64,ANY);	515	New(54,PL_savestack,64,ANY);
449	PL_savestack_ix = 0;	516	PL_savestack_ix = 0;
450	PL_savestack_max = 64;	517	PL_savestack_max = 64;
451		518
452	#if !PERL_VERSION_ATLEAST (5,9,0)	519	#if !PERL_VERSION_ATLEAST (5,9,0)
453	New(54,PL_retstack,16,OP*);	520	New(54,PL_retstack,4,OP*);
454	PL_retstack_ix = 0;	521	PL_retstack_ix = 0;
455	PL_retstack_max = 16;	522	PL_retstack_max = 4;
456	#endif	523	#endif
457	}	524	}
458	#endif	525	#endif
459		526
460	/*	527	/*
461	* destroy the stacks, the callchain etc...	528	* destroy the stacks, the callchain etc...
462	*/	529	*/
463	static void	530	static void
464	coro_destroy_stacks ()	531	coro_destroy_stacks (pTHX)
465	{	532	{
466	if (!IN_DESTRUCT)
467	{
468	/* restore all saved variables and stuff */
469	LEAVE_SCOPE (0);
470	assert (PL_tmps_floor == -1);
471
472	/* free all temporaries */
473	FREETMPS;
474	assert (PL_tmps_ix == -1);
475
476	POPSTACK_TO (PL_mainstack);
477	}
478
479	while (PL_curstackinfo->si_next)	533	while (PL_curstackinfo->si_next)
480	PL_curstackinfo = PL_curstackinfo->si_next;	534	PL_curstackinfo = PL_curstackinfo->si_next;
481		535
482	while (PL_curstackinfo)	536	while (PL_curstackinfo)
483	{	537	{
…		…
498	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
499	Safefree (PL_retstack);	553	Safefree (PL_retstack);
500	#endif	554	#endif
501	}	555	}
502		556
503	static void	557	static size_t
504	setup_coro (struct coro *coro)	558	coro_rss (pTHX_ struct coro *coro)
		559	{
		560	size_t rss = sizeof (*coro);
		561
		562	if (coro->mainstack)
		563	{
		564	if (coro->flags & CF_RUNNING)
		565	{
		566	#define VAR(name,type)coro->name = PL_ ## name;
		567	# include "state.h"
		568	#undef VAR
		569	}
		570
		571	rss += sizeof (coro->curstackinfo);
		572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		575	rss += coro->tmps_max * sizeof (SV *);
		576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		577	rss += coro->scopestack_max * sizeof (I32);
		578	rss += coro->savestack_max * sizeof (ANY);
		579
		580	#if !PERL_VERSION_ATLEAST (5,9,0)
		581	rss += coro->retstack_max * sizeof (OP *);
		582	#endif
		583	}
		584
		585	return rss;
		586	}
		587
		588	/ coroutine stack handling **********************************************/
		589
		590	static void
		591	coro_setup (pTHX_ struct coro *coro)
505	{	592	{
506	/*	593	/*
507	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
508	*/	595	*/
509
510	coro_init_stacks ();	596	coro_init_stacks (aTHX);
511		597
		598	PL_runops = RUNOPS_DEFAULT;
512	PL_curcop = &PL_compiling;	599	PL_curcop = &PL_compiling;
513	PL_in_eval = EVAL_NULL;	600	PL_in_eval = EVAL_NULL;
		601	PL_comppad = 0;
514	PL_curpm = 0;	602	PL_curpm = 0;
515	PL_localizing = 0;	603	PL_localizing = 0;
516	PL_dirty = 0;	604	PL_dirty = 0;
517	PL_restartop = 0;	605	PL_restartop = 0;
		606
		607	GvSV (PL_defgv) = NEWSV (0, 0);
		608	GvAV (PL_defgv) = coro->args; coro->args = 0;
		609	GvSV (PL_errgv) = NEWSV (0, 0);
		610	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		611	PL_rs = newSVsv (GvSV (irsgv));
		612
		613	{
		614	IO *io = newIO ();
		615	PL_defoutgv = newGVgen ("Coro");
		616	GvIOp(PL_defoutgv) = io;
		617	IoTYPE (io) = IoTYPE_WRONLY;
		618	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		619	IoFLAGS (io) \|= IOf_FLUSH;
		620	}
518		621
519	{	622	{
520	dSP;	623	dSP;
521	LOGOP myop;	624	LOGOP myop;
522		625
523	SvREFCNT_dec (GvAV (PL_defgv));
524	GvAV (PL_defgv) = coro->args; coro->args = 0;
525
526	Zero (&myop, 1, LOGOP);	626	Zero (&myop, 1, LOGOP);
527	myop.op_next = Nullop;	627	myop.op_next = Nullop;
528	myop.op_flags = OPf_WANT_VOID;	628	myop.op_flags = OPf_WANT_VOID;
529		629
530	PUSHMARK (SP);	630	PUSHMARK (SP);
531	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	631	XPUSHs (av_shift (GvAV (PL_defgv)));
532	PUTBACK;	632	PUTBACK;
533	PL_op = (OP *)&myop;	633	PL_op = (OP *)&myop;
534	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	634	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
535	SPAGAIN;	635	SPAGAIN;
536	}	636	}
537		637
538	ENTER; /* necessary e.g. for dounwind */	638	ENTER; /* necessary e.g. for dounwind */
539	}	639	}
540		640
541	static void	641	static void
		642	coro_destroy (pTHX_ struct coro *coro)
		643	{
		644	if (!IN_DESTRUCT)
		645	{
		646	/* restore all saved variables and stuff */
		647	LEAVE_SCOPE (0);
		648	assert (PL_tmps_floor == -1);
		649
		650	/* free all temporaries */
		651	FREETMPS;
		652	assert (PL_tmps_ix == -1);
		653
		654	/* unwind all extra stacks */
		655	POPSTACK_TO (PL_mainstack);
		656
		657	/* unwind main stack */
		658	dounwind (-1);
		659	}
		660
		661	SvREFCNT_dec (GvSV (PL_defgv));
		662	SvREFCNT_dec (GvAV (PL_defgv));
		663	SvREFCNT_dec (GvSV (PL_errgv));
		664	SvREFCNT_dec (PL_defoutgv);
		665	SvREFCNT_dec (PL_rs);
		666	SvREFCNT_dec (GvSV (irsgv));
		667
		668	SvREFCNT_dec (coro->asp_deffh);
		669	//SvREFCNT_dec (coro->throw);
		670
		671	coro_destroy_stacks (aTHX);
		672	}
		673
		674	static void
542	free_coro_mortal ()	675	free_coro_mortal (pTHX)
543	{	676	{
544	if (coro_mortal)	677	if (coro_mortal)
545	{	678	{
546	SvREFCNT_dec (coro_mortal);	679	SvREFCNT_dec (coro_mortal);
547	coro_mortal = 0;	680	coro_mortal = 0;
548	}	681	}
549	}	682	}
550		683
		684	static int
		685	runops_trace (pTHX)
		686	{
		687	COP *oldcop = 0;
		688	int oldcxix = -2;
		689	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		690	coro_cctx *cctx = coro->cctx;
		691
		692	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		693	{
		694	PERL_ASYNC_CHECK ();
		695
		696	if (cctx->flags & CC_TRACE_ALL)
		697	{
		698	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		699	{
		700	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		701	SV bot, top;
		702	AV av = newAV (); / return values */
		703	SV **cb;
		704	dSP;
		705
		706	GV *gv = CvGV (cx->blk_sub.cv);
		707	SV *fullname = sv_2mortal (newSV (0));
		708	if (isGV (gv))
		709	gv_efullname3 (fullname, gv, 0);
		710
		711	bot = PL_stack_base + cx->blk_oldsp + 1;
		712	top = cx->blk_gimme == G_ARRAY ? SP + 1
		713	: cx->blk_gimme == G_SCALAR ? bot + 1
		714	: bot;
		715
		716	while (bot < top)
		717	av_push (av, SvREFCNT_inc (*bot++));
		718
		719	PL_runops = RUNOPS_DEFAULT;
		720	ENTER;
		721	SAVETMPS;
		722	EXTEND (SP, 3);
		723	PUSHMARK (SP);
		724	PUSHs (&PL_sv_no);
		725	PUSHs (fullname);
		726	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		727	PUTBACK;
		728	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		729	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		730	SPAGAIN;
		731	FREETMPS;
		732	LEAVE;
		733	PL_runops = runops_trace;
		734	}
		735
		736	if (oldcop != PL_curcop)
		737	{
		738	oldcop = PL_curcop;
		739
		740	if (PL_curcop != &PL_compiling)
		741	{
		742	SV **cb;
		743
		744	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		745	{
		746	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		747
		748	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		749	{
		750	runops_proc_t old_runops = PL_runops;
		751	dSP;
		752	GV *gv = CvGV (cx->blk_sub.cv);
		753	SV *fullname = sv_2mortal (newSV (0));
		754
		755	if (isGV (gv))
		756	gv_efullname3 (fullname, gv, 0);
		757
		758	PL_runops = RUNOPS_DEFAULT;
		759	ENTER;
		760	SAVETMPS;
		761	EXTEND (SP, 3);
		762	PUSHMARK (SP);
		763	PUSHs (&PL_sv_yes);
		764	PUSHs (fullname);
		765	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		766	PUTBACK;
		767	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		768	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		769	SPAGAIN;
		770	FREETMPS;
		771	LEAVE;
		772	PL_runops = runops_trace;
		773	}
		774
		775	oldcxix = cxstack_ix;
		776	}
		777
		778	if (cctx->flags & CC_TRACE_LINE)
		779	{
		780	dSP;
		781
		782	PL_runops = RUNOPS_DEFAULT;
		783	ENTER;
		784	SAVETMPS;
		785	EXTEND (SP, 3);
		786	PL_runops = RUNOPS_DEFAULT;
		787	PUSHMARK (SP);
		788	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		789	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		790	PUTBACK;
		791	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		792	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		793	SPAGAIN;
		794	FREETMPS;
		795	LEAVE;
		796	PL_runops = runops_trace;
		797	}
		798	}
		799	}
		800	}
		801	}
		802
		803	TAINT_NOT;
		804	return 0;
		805	}
		806
551	/* inject a fake call to Coro::State::_cctx_init into the execution */	807	/* inject a fake call to Coro::State::_cctx_init into the execution */
		808	/* _cctx_init should be careful, as it could be called at almost any time */
		809	/* during execution of a perl program */
552	static void NOINLINE	810	static void NOINLINE
553	prepare_cctx (coro_cctx *cctx)	811	prepare_cctx (pTHX_ coro_cctx *cctx)
554	{	812	{
555	dSP;	813	dSP;
556	LOGOP myop;	814	LOGOP myop;
		815
		816	PL_top_env = &PL_start_env;
		817
		818	if (cctx->flags & CC_TRACE)
		819	PL_runops = runops_trace;
557		820
558	Zero (&myop, 1, LOGOP);	821	Zero (&myop, 1, LOGOP);
559	myop.op_next = PL_op;	822	myop.op_next = PL_op;
560	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	823	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
561		824
…		…
567	PL_op = (OP *)&myop;	830	PL_op = (OP *)&myop;
568	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	831	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
569	SPAGAIN;	832	SPAGAIN;
570	}	833	}
571		834
		835	/*
		836	* this is a _very_ stripped down perl interpreter ;)
		837	*/
572	static void	838	static void
573	coro_run (void *arg)	839	coro_run (void *arg)
574	{	840	{
		841	dTHX;
		842
575	/* coro_run is the alternative tail of transfer(), so unlock here. */	843	/* coro_run is the alternative tail of transfer(), so unlock here. */
576	UNLOCK;	844	UNLOCK;
577		845
578	/*	846	/* we now skip the entersub that lead to transfer() */
579	* this is a _very_ stripped down perl interpreter ;)	847	PL_op = PL_op->op_next;
580	*/
581	PL_top_env = &PL_start_env;
582		848
583	/* inject call to cctx_init */	849	/* inject a fake subroutine call to cctx_init */
584	prepare_cctx ((coro_cctx *)arg);	850	prepare_cctx (aTHX_ (coro_cctx *)arg);
585		851
586	/* somebody will hit me for both perl_run and PL_restartop */	852	/* somebody or something will hit me for both perl_run and PL_restartop */
587	PL_restartop = PL_op;	853	PL_restartop = PL_op;
588	perl_run (PL_curinterp);	854	perl_run (PL_curinterp);
589		855
590	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	856	/*
591	abort ();	857	* If perl-run returns we assume exit() was being called or the coro
		858	* fell off the end, which seems to be the only valid (non-bug)
		859	* reason for perl_run to return. We try to exit by jumping to the
		860	* bootstrap-time "top" top_env, as we cannot restore the "main"
		861	* coroutine as Coro has no such concept
		862	*/
		863	PL_top_env = main_top_env;
		864	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
592	}	865	}
593		866
594	static coro_cctx *	867	static coro_cctx *
595	cctx_new ()	868	cctx_new ()
596	{	869	{
597	coro_cctx *cctx;	870	coro_cctx *cctx;
		871	void *stack_start;
		872	size_t stack_size;
598		873
599	++cctx_count;	874	++cctx_count;
600		875
601	Newz (0, cctx, 1, coro_cctx);	876	Newz (0, cctx, 1, coro_cctx);
602		877
603	#if HAVE_MMAP	878	#if HAVE_MMAP
604		879
605	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	880	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
606	/* mmap supposedly does allocate-on-write for us */	881	/* mmap supposedly does allocate-on-write for us */
607	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	882	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
608		883
609	if (cctx->sptr == (void *)-1)	884	if (cctx->sptr != (void *)-1)
610	{
611	perror ("FATAL: unable to mmap stack for coroutine");
612	_exit (EXIT_FAILURE);
613	}	885	{
614
615	# if STACKGUARD	886	# if CORO_STACKGUARD
616	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	887	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
617	# endif	888	# endif
		889	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		890	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		891	cctx->flags \|= CC_MAPPED;
		892	}
		893	else
		894	#endif
		895	{
		896	cctx->ssize = coro_stacksize * (long)sizeof (long);
		897	New (0, cctx->sptr, coro_stacksize, long);
618		898
619	#else
620
621	cctx->ssize = STACKSIZE * (long)sizeof (long);
622	New (0, cctx->sptr, STACKSIZE, long);
623
624	if (!cctx->sptr)	899	if (!cctx->sptr)
625	{	900	{
626	perror ("FATAL: unable to malloc stack for coroutine");	901	perror ("FATAL: unable to allocate stack for coroutine");
627	_exit (EXIT_FAILURE);	902	_exit (EXIT_FAILURE);
628	}	903	}
629		904
630	#endif	905	stack_start = cctx->sptr;
		906	stack_size = cctx->ssize;
		907	}
631		908
632	#if USE_VALGRIND	909	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
633	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
634	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
635	cctx->ssize + (char *)cctx->sptr
636	);
637	#endif
638
639	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	910	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
640		911
641	return cctx;	912	return cctx;
642	}	913	}
643		914
644	static void	915	static void
…		…
647	if (!cctx)	918	if (!cctx)
648	return;	919	return;
649		920
650	--cctx_count;	921	--cctx_count;
651		922
652	#if USE_VALGRIND	923	#if CORO_USE_VALGRIND
653	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	924	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
654	#endif	925	#endif
655		926
656	#if HAVE_MMAP	927	#if HAVE_MMAP
		928	if (cctx->flags & CC_MAPPED)
657	munmap (cctx->sptr, cctx->ssize);	929	munmap (cctx->sptr, cctx->ssize);
658	#else	930	else
		931	#endif
659	Safefree (cctx->sptr);	932	Safefree (cctx->sptr);
660	#endif
661		933
662	Safefree (cctx);	934	Safefree (cctx);
663	}	935	}
664		936
665	static coro_cctx *	937	static coro_cctx *
666	cctx_get ()	938	cctx_get (pTHX)
667	{	939	{
668	coro_cctx *cctx;
669
670	if (cctx_first)	940	while (cctx_first)
671	{	941	{
672	cctx = cctx_first;	942	coro_cctx *cctx = cctx_first;
673	cctx_first = cctx->next;	943	cctx_first = cctx->next;
674	--cctx_idle;	944	--cctx_idle;
675	}	945
676	else	946	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
677	{	947	return cctx;
678	cctx = cctx_new ();	948
679	PL_op = PL_op->op_next;	949	cctx_destroy (cctx);
680	}	950	}
681		951
682	return cctx;	952	return cctx_new ();
683	}	953	}
684		954
685	static void	955	static void
686	cctx_put (coro_cctx *cctx)	956	cctx_put (coro_cctx *cctx)
687	{	957	{
…		…
690	{	960	{
691	coro_cctx *first = cctx_first;	961	coro_cctx *first = cctx_first;
692	cctx_first = first->next;	962	cctx_first = first->next;
693	--cctx_idle;	963	--cctx_idle;
694		964
695	assert (!first->inuse);
696	cctx_destroy (first);	965	cctx_destroy (first);
697	}	966	}
698		967
699	++cctx_idle;	968	++cctx_idle;
700	cctx->next = cctx_first;	969	cctx->next = cctx_first;
701	cctx_first = cctx;	970	cctx_first = cctx;
702	}	971	}
703		972
704	/* never call directly, always through the coro_state_transfer global variable */	973	/ coroutine switching ***************************************************/
		974
705	static void NOINLINE	975	static void NOINLINE
		976	transfer_check (pTHX_ struct coro prev, struct coro next)
		977	{
		978	if (prev != next)
		979	{
		980	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		981	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		982
		983	if (next->flags & CF_RUNNING)
		984	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		985
		986	if (next->flags & CF_DESTROYED)
		987	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		988
		989	if (PL_lex_state != LEX_NOTPARSING)
		990	croak ("Coro::State::transfer called while parsing, but this is not supported");
		991	}
		992	}
		993
		994	/* always use the TRANSFER macro */
		995	static void NOINLINE
706	transfer (struct coro prev, struct coro next)	996	transfer (pTHX_ struct coro prev, struct coro next)
707	{	997	{
708	dSTACKLEVEL;	998	dSTACKLEVEL;
709		999
710	/* sometimes transfer is only called to set idle_sp */	1000	/* sometimes transfer is only called to set idle_sp */
711	if (!next)	1001	if (!next)
…		…
719		1009
720	if (prev->flags & CF_NEW)	1010	if (prev->flags & CF_NEW)
721	{	1011	{
722	/* create a new empty context */	1012	/* create a new empty context */
723	Newz (0, prev->cctx, 1, coro_cctx);	1013	Newz (0, prev->cctx, 1, coro_cctx);
724	prev->cctx->inuse = 1;
725	prev->flags &= ~CF_NEW;	1014	prev->flags &= ~CF_NEW;
726	prev->flags \|= CF_RUNNING;	1015	prev->flags \|= CF_RUNNING;
727	}	1016	}
728
729	/TODO: must not croak here /
730	if (!prev->flags & CF_RUNNING)
731	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
732
733	if (next->flags & CF_RUNNING)
734	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
735		1017
736	prev->flags &= ~CF_RUNNING;	1018	prev->flags &= ~CF_RUNNING;
737	next->flags \|= CF_RUNNING;	1019	next->flags \|= CF_RUNNING;
738		1020
739	LOCK;	1021	LOCK;
…		…
741	if (next->flags & CF_NEW)	1023	if (next->flags & CF_NEW)
742	{	1024	{
743	/* need to start coroutine */	1025	/* need to start coroutine */
744	next->flags &= ~CF_NEW;	1026	next->flags &= ~CF_NEW;
745	/* first get rid of the old state */	1027	/* first get rid of the old state */
746	save_perl (prev);	1028	save_perl (aTHX_ prev);
747	/* setup coroutine call */	1029	/* setup coroutine call */
748	setup_coro (next);	1030	coro_setup (aTHX_ next);
749	/* need a new stack */
750	assert (!next->cctx);
751	}	1031	}
752	else	1032	else
753	{	1033	{
754	/* coroutine already started */	1034	/* coroutine already started */
755	save_perl (prev);	1035	save_perl (aTHX_ prev);
756	load_perl (next);	1036	load_perl (aTHX_ next);
757	}	1037	}
758		1038
759	prev__cctx = prev->cctx;	1039	prev__cctx = prev->cctx;
760		1040
761	/* possibly "free" the cctx */	1041	/* possibly "free" the cctx */
762	if (prev__cctx->idle_sp == STACKLEVEL)	1042	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
763	{	1043	{
764	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1044	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
765	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1045	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
766		1046
767	prev->cctx = 0;	1047	prev->cctx = 0;
768		1048
769	cctx_put (prev__cctx);	1049	cctx_put (prev__cctx);
770	prev__cctx->inuse = 0;
771	}	1050	}
772		1051
		1052	++next->usecount;
		1053
773	if (!next->cctx)	1054	if (!next->cctx)
774	{
775	next->cctx = cctx_get ();	1055	next->cctx = cctx_get (aTHX);
776	assert (!next->cctx->inuse);
777	next->cctx->inuse = 1;
778	}
779		1056
780	if (prev__cctx != next->cctx)	1057	if (prev__cctx != next->cctx)
781	{	1058	{
782	prev__cctx->top_env = PL_top_env;	1059	prev__cctx->top_env = PL_top_env;
783	PL_top_env = next->cctx->top_env;	1060	PL_top_env = next->cctx->top_env;
784	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1061	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
785	}	1062	}
786		1063
787	free_coro_mortal ();	1064	free_coro_mortal (aTHX);
788
789	UNLOCK;	1065	UNLOCK;
790	}	1066	}
791	}	1067	}
792		1068
793	struct transfer_args	1069	struct transfer_args
794	{	1070	{
795	struct coro prev, next;	1071	struct coro prev, next;
796	};	1072	};
797		1073
798	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1074	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1075	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
799		1076
		1077	/ high level stuff ******************************************************/
		1078
800	static void	1079	static int
801	coro_state_destroy (struct coro *coro)	1080	coro_state_destroy (pTHX_ struct coro *coro)
802	{	1081	{
803	if (coro->refcnt--)	1082	if (coro->flags & CF_DESTROYED)
804	return;	1083	return 0;
		1084
		1085	coro->flags \|= CF_DESTROYED;
		1086
		1087	if (coro->flags & CF_READY)
		1088	{
		1089	/* reduce nready, as destroying a ready coro effectively unreadies it */
		1090	/* alternative: look through all ready queues and remove the coro */
		1091	LOCK;
		1092	--coro_nready;
		1093	UNLOCK;
		1094	}
		1095	else
		1096	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
805		1097
806	if (coro->mainstack && coro->mainstack != main_mainstack)	1098	if (coro->mainstack && coro->mainstack != main_mainstack)
807	{	1099	{
808	struct coro temp;	1100	struct coro temp;
809	Zero (&temp, 1, struct coro);
810	temp.save = CORO_SAVE_ALL;
811		1101
812	if (coro->flags & CF_RUNNING)	1102	if (coro->flags & CF_RUNNING)
813	croak ("FATAL: tried to destroy currently running coroutine");	1103	croak ("FATAL: tried to destroy currently running coroutine");
814		1104
815	save_perl (&temp);	1105	save_perl (aTHX_ &temp);
816	load_perl (coro);	1106	load_perl (aTHX_ coro);
817		1107
818	coro_destroy_stacks ();	1108	coro_destroy (aTHX_ coro);
819		1109
820	load_perl (&temp); /* this will get rid of defsv etc.. */	1110	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
821		1111
822	coro->mainstack = 0;	1112	coro->mainstack = 0;
823	}	1113	}
824		1114
825	cctx_destroy (coro->cctx);	1115	cctx_destroy (coro->cctx);
826	SvREFCNT_dec (coro->args);	1116	SvREFCNT_dec (coro->args);
827	Safefree (coro);	1117
		1118	if (coro->next) coro->next->prev = coro->prev;
		1119	if (coro->prev) coro->prev->next = coro->next;
		1120	if (coro == coro_first) coro_first = coro->next;
		1121
		1122	return 1;
828	}	1123	}
829		1124
830	static int	1125	static int
831	coro_state_clear (pTHX_ SV sv, MAGIC mg)	1126	coro_state_free (pTHX_ SV sv, MAGIC mg)
832	{	1127	{
833	struct coro coro = (struct coro )mg->mg_ptr;	1128	struct coro coro = (struct coro )mg->mg_ptr;
834	mg->mg_ptr = 0;	1129	mg->mg_ptr = 0;
835		1130
		1131	coro->hv = 0;
		1132
		1133	if (--coro->refcnt < 0)
		1134	{
836	coro_state_destroy (coro);	1135	coro_state_destroy (aTHX_ coro);
		1136	Safefree (coro);
		1137	}
837		1138
838	return 0;	1139	return 0;
839	}	1140	}
840		1141
841	static int	1142	static int
…		…
848	return 0;	1149	return 0;
849	}	1150	}
850		1151
851	static MGVTBL coro_state_vtbl = {	1152	static MGVTBL coro_state_vtbl = {
852	0, 0, 0, 0,	1153	0, 0, 0, 0,
853	coro_state_clear,	1154	coro_state_free,
854	0,	1155	0,
855	#ifdef MGf_DUP	1156	#ifdef MGf_DUP
856	coro_state_dup,	1157	coro_state_dup,
857	#else	1158	#else
858	# define MGf_DUP 0	1159	# define MGf_DUP 0
859	#endif	1160	#endif
860	};	1161	};
861		1162
862	static struct coro *
863	SvSTATE (SV *coro)
864	{
865	HV *stash;
866	MAGIC *mg;
867
868	if (SvROK (coro))
869	coro = SvRV (coro);
870
871	stash = SvSTASH (coro);
872	if (stash != coro_stash && stash != coro_state_stash)
873	{
874	/* very slow, but rare, check */
875	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
876	croak ("Coro::State object required");
877	}
878
879	mg = SvMAGIC (coro);
880	assert (mg->mg_type == PERL_MAGIC_ext);
881	return (struct coro *)mg->mg_ptr;
882	}
883
884	static void	1163	static void
885	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1164	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
886	{	1165	{
887	ta->prev = SvSTATE (prev_sv);	1166	ta->prev = SvSTATE (prev_sv);
888	ta->next = SvSTATE (next_sv);	1167	ta->next = SvSTATE (next_sv);
		1168	TRANSFER_CHECK (*ta);
889	}	1169	}
890		1170
891	static void	1171	static void
892	api_transfer (SV prev_sv, SV next_sv)	1172	api_transfer (SV prev_sv, SV next_sv)
893	{	1173	{
		1174	dTHX;
894	struct transfer_args ta;	1175	struct transfer_args ta;
895		1176
896	prepare_transfer (&ta, prev_sv, next_sv);	1177	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
897	TRANSFER (ta);	1178	TRANSFER (ta);
898	}	1179	}
899		1180
900	static int
901	api_save (SV *coro_sv, int new_save)
902	{
903	struct coro *coro = SvSTATE (coro_sv);
904	int old_save = coro->save;
905
906	if (new_save >= 0)
907	coro->save = new_save;
908
909	return old_save;
910	}
911
912	/ Coro ******************************************************************/	1181	/ Coro ******************************************************************/
913		1182
914	#define PRIO_MAX 3
915	#define PRIO_HIGH 1
916	#define PRIO_NORMAL 0
917	#define PRIO_LOW -1
918	#define PRIO_IDLE -3
919	#define PRIO_MIN -4
920
921	/* for Coro.pm */
922	static SV *coro_current;
923	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
924	static int coro_nready;
925
926	static void	1183	static void
927	coro_enq (SV *coro_sv)	1184	coro_enq (pTHX_ SV *coro_sv)
928	{	1185	{
929	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1186	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
930	coro_nready++;
931	}	1187	}
932		1188
933	static SV *	1189	static SV *
934	coro_deq (int min_prio)	1190	coro_deq (pTHX_ int min_prio)
935	{	1191	{
936	int prio = PRIO_MAX - PRIO_MIN;	1192	int prio = PRIO_MAX - PRIO_MIN;
937		1193
938	min_prio -= PRIO_MIN;	1194	min_prio -= PRIO_MIN;
939	if (min_prio < 0)	1195	if (min_prio < 0)
940	min_prio = 0;	1196	min_prio = 0;
941		1197
942	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1198	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
943	if (AvFILLp (coro_ready [prio]) >= 0)	1199	if (AvFILLp (coro_ready [prio]) >= 0)
944	{
945	coro_nready--;
946	return av_shift (coro_ready [prio]);	1200	return av_shift (coro_ready [prio]);
947	}
948		1201
949	return 0;	1202	return 0;
950	}	1203	}
951		1204
952	static int	1205	static int
953	api_ready (SV *coro_sv)	1206	api_ready (SV *coro_sv)
954	{	1207	{
		1208	dTHX;
955	struct coro *coro;	1209	struct coro *coro;
956		1210
957	if (SvROK (coro_sv))	1211	if (SvROK (coro_sv))
958	coro_sv = SvRV (coro_sv);	1212	coro_sv = SvRV (coro_sv);
959		1213
…		…
963	return 0;	1217	return 0;
964		1218
965	coro->flags \|= CF_READY;	1219	coro->flags \|= CF_READY;
966		1220
967	LOCK;	1221	LOCK;
968	coro_enq (SvREFCNT_inc (coro_sv));	1222	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1223	++coro_nready;
969	UNLOCK;	1224	UNLOCK;
970		1225
971	return 1;	1226	return 1;
972	}	1227	}
973		1228
974	static int	1229	static int
975	api_is_ready (SV *coro_sv)	1230	api_is_ready (SV *coro_sv)
976	{	1231	{
		1232	dTHX;
977	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1233	return !!(SvSTATE (coro_sv)->flags & CF_READY);
978	}	1234	}
979		1235
980	static void	1236	static void
981	prepare_schedule (struct transfer_args *ta)	1237	prepare_schedule (pTHX_ struct transfer_args *ta)
982	{	1238	{
983	SV prev, next;	1239	SV prev_sv, next_sv;
984		1240
985	for (;;)	1241	for (;;)
986	{	1242	{
987	LOCK;	1243	LOCK;
988	next = coro_deq (PRIO_MIN);	1244	next_sv = coro_deq (aTHX_ PRIO_MIN);
		1245
		1246	/* nothing to schedule: call the idle handler */
		1247	if (!next_sv)
		1248	{
		1249	dSP;
		1250	UNLOCK;
		1251
		1252	ENTER;
		1253	SAVETMPS;
		1254
		1255	PUSHMARK (SP);
		1256	PUTBACK;
		1257	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1258
		1259	FREETMPS;
		1260	LEAVE;
		1261	continue;
		1262	}
		1263
		1264	ta->next = SvSTATE (next_sv);
		1265
		1266	/* cannot transfer to destroyed coros, skip and look for next */
		1267	if (ta->next->flags & CF_DESTROYED)
		1268	{
		1269	UNLOCK;
		1270	SvREFCNT_dec (next_sv);
		1271	/* coro_nready is already taken care of by destroy */
		1272	continue;
		1273	}
		1274
		1275	--coro_nready;
989	UNLOCK;	1276	UNLOCK;
990
991	if (next)
992	break;	1277	break;
993
994	{
995	dSP;
996
997	ENTER;
998	SAVETMPS;
999
1000	PUSHMARK (SP);
1001	PUTBACK;
1002	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1003
1004	FREETMPS;
1005	LEAVE;
1006	}	1278	}
1007	}
1008
1009	prev = SvRV (coro_current);
1010	SvRV_set (coro_current, next);
1011		1279
1012	/* free this only after the transfer */	1280	/* free this only after the transfer */
1013	LOCK;	1281	prev_sv = SvRV (coro_current);
1014	free_coro_mortal ();
1015	UNLOCK;
1016	coro_mortal = prev;
1017
1018	assert (!SvROK(prev));//D
1019	assert (!SvROK(next));//D
1020
1021	ta->prev = SvSTATE (prev);	1282	ta->prev = SvSTATE (prev_sv);
1022	ta->next = SvSTATE (next);	1283	TRANSFER_CHECK (*ta);
1023
1024	assert (ta->next->flags & CF_READY);	1284	assert (ta->next->flags & CF_READY);
1025	ta->next->flags &= ~CF_READY;	1285	ta->next->flags &= ~CF_READY;
1026	}	1286	SvRV_set (coro_current, next_sv);
1027		1287
		1288	LOCK;
		1289	free_coro_mortal (aTHX);
		1290	coro_mortal = prev_sv;
		1291	UNLOCK;
		1292	}
		1293
1028	static void	1294	static void
1029	prepare_cede (struct transfer_args *ta)	1295	prepare_cede (pTHX_ struct transfer_args *ta)
1030	{	1296	{
1031	api_ready (coro_current);	1297	api_ready (coro_current);
1032	prepare_schedule (ta);	1298	prepare_schedule (aTHX_ ta);
1033	}	1299	}
1034		1300
1035	static int	1301	static int
1036	prepare_cede_notself (struct transfer_args *ta)	1302	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1037	{	1303	{
1038	if (coro_nready)	1304	if (coro_nready)
1039	{	1305	{
1040	SV *prev = SvRV (coro_current);	1306	SV *prev = SvRV (coro_current);
1041	prepare_schedule (ta);	1307	prepare_schedule (aTHX_ ta);
1042	api_ready (prev);	1308	api_ready (prev);
1043	return 1;	1309	return 1;
1044	}	1310	}
1045	else	1311	else
1046	return 0;	1312	return 0;
1047	}	1313	}
1048		1314
1049	static void	1315	static void
1050	api_schedule (void)	1316	api_schedule (void)
1051	{	1317	{
		1318	dTHX;
1052	struct transfer_args ta;	1319	struct transfer_args ta;
1053		1320
1054	prepare_schedule (&ta);	1321	prepare_schedule (aTHX_ &ta);
1055	TRANSFER (ta);	1322	TRANSFER (ta);
1056	}	1323	}
1057		1324
1058	static int	1325	static int
1059	api_cede (void)	1326	api_cede (void)
1060	{	1327	{
		1328	dTHX;
1061	struct transfer_args ta;	1329	struct transfer_args ta;
1062		1330
1063	prepare_cede (&ta);	1331	prepare_cede (aTHX_ &ta);
1064		1332
1065	if (ta.prev != ta.next)	1333	if (ta.prev != ta.next)
1066	{	1334	{
1067	TRANSFER (ta);	1335	TRANSFER (ta);
1068	return 1;	1336	return 1;
…		…
1072	}	1340	}
1073		1341
1074	static int	1342	static int
1075	api_cede_notself (void)	1343	api_cede_notself (void)
1076	{	1344	{
		1345	dTHX;
1077	struct transfer_args ta;	1346	struct transfer_args ta;
1078		1347
1079	if (prepare_cede_notself (&ta))	1348	if (prepare_cede_notself (aTHX_ &ta))
1080	{	1349	{
1081	TRANSFER (ta);	1350	TRANSFER (ta);
1082	return 1;	1351	return 1;
1083	}	1352	}
1084	else	1353	else
1085	return 0;	1354	return 0;
1086	}	1355	}
1087		1356
		1357	static void
		1358	api_trace (SV *coro_sv, int flags)
		1359	{
		1360	dTHX;
		1361	struct coro *coro = SvSTATE (coro_sv);
		1362
		1363	if (flags & CC_TRACE)
		1364	{
		1365	if (!coro->cctx)
		1366	coro->cctx = cctx_new ();
		1367	else if (!(coro->cctx->flags & CC_TRACE))
		1368	croak ("cannot enable tracing on coroutine with custom stack");
		1369
		1370	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1371	}
		1372	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1373	{
		1374	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1375
		1376	if (coro->flags & CF_RUNNING)
		1377	PL_runops = RUNOPS_DEFAULT;
		1378	else
		1379	coro->runops = RUNOPS_DEFAULT;
		1380	}
		1381	}
		1382
1088	MODULE = Coro::State PACKAGE = Coro::State	1383	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1089		1384
1090	PROTOTYPES: DISABLE	1385	PROTOTYPES: DISABLE
1091		1386
1092	BOOT:	1387	BOOT:
1093	{	1388	{
1094	#ifdef USE_ITHREADS	1389	#ifdef USE_ITHREADS
1095	MUTEX_INIT (&coro_mutex);	1390	MUTEX_INIT (&coro_mutex);
1096	#endif	1391	#endif
1097	BOOT_PAGESIZE;	1392	BOOT_PAGESIZE;
1098		1393
		1394	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1395
1099	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1100		1397
		1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1101	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1400	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1102	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1103	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1104	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1105	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1106		1402
1107	main_mainstack = PL_mainstack;	1403	main_mainstack = PL_mainstack;
		1404	main_top_env = PL_top_env;
		1405
		1406	while (main_top_env->je_prev)
		1407	main_top_env = main_top_env->je_prev;
1108		1408
1109	coroapi.ver = CORO_API_VERSION;	1409	coroapi.ver = CORO_API_VERSION;
1110	coroapi.transfer = api_transfer;	1410	coroapi.transfer = api_transfer;
1111		1411
1112	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1412	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1119	struct coro *coro;	1419	struct coro *coro;
1120	HV *hv;	1420	HV *hv;
1121	int i;	1421	int i;
1122		1422
1123	Newz (0, coro, 1, struct coro);	1423	Newz (0, coro, 1, struct coro);
1124	coro->args = newAV ();	1424	coro->args = newAV ();
1125	coro->save = CORO_SAVE_ALL;
1126	coro->flags = CF_NEW;	1425	coro->flags = CF_NEW;
1127		1426
		1427	if (coro_first) coro_first->prev = coro;
		1428	coro->next = coro_first;
		1429	coro_first = coro;
		1430
1128	hv = newHV ();	1431	coro->hv = hv = newHV ();
1129	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1432	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1130	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1433	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1131		1434
1132	for (i = 1; i < items; i++)	1435	for (i = 1; i < items; i++)
1133	av_push (coro->args, newSVsv (ST (i)));	1436	av_push (coro->args, newSVsv (ST (i)));
1134	}	1437	}
1135	OUTPUT:	1438	OUTPUT:
1136	RETVAL	1439	RETVAL
1137		1440
1138	int	1441	# these not obviously related functions are all rolled into the same xs
1139	save (SV *coro, int new_save = -1)	1442	# function to increase chances that they all will call transfer with the same
1140	CODE:	1443	# stack offset
1141	RETVAL = api_save (coro, new_save);
1142	OUTPUT:
1143	RETVAL
1144
1145	void	1444	void
1146	_set_stacklevel (...)	1445	_set_stacklevel (...)
1147	ALIAS:	1446	ALIAS:
1148	Coro::State::transfer = 1	1447	Coro::State::transfer = 1
1149	Coro::schedule = 2	1448	Coro::schedule = 2
…		…
1162		1461
1163	case 1:	1462	case 1:
1164	if (items != 2)	1463	if (items != 2)
1165	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1464	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1166		1465
1167	prepare_transfer (&ta, ST (0), ST (1));	1466	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1168	break;	1467	break;
1169		1468
1170	case 2:	1469	case 2:
1171	prepare_schedule (&ta);	1470	prepare_schedule (aTHX_ &ta);
1172	break;	1471	break;
1173		1472
1174	case 3:	1473	case 3:
1175	prepare_cede (&ta);	1474	prepare_cede (aTHX_ &ta);
1176	break;	1475	break;
1177		1476
1178	case 4:	1477	case 4:
1179	if (!prepare_cede_notself (&ta))	1478	if (!prepare_cede_notself (aTHX_ &ta))
1180	XSRETURN_EMPTY;	1479	XSRETURN_EMPTY;
1181		1480
1182	break;	1481	break;
1183	}	1482	}
1184		1483
1185	BARRIER;	1484	BARRIER;
1186	TRANSFER (ta);	1485	TRANSFER (ta);
1187	}
1188		1486
1189	void	1487	if (GIMME_V != G_VOID && ta.next != ta.prev)
1190	_clone_state_from (SV dst, SV src)	1488	XSRETURN_YES;
		1489	}
		1490
		1491	bool
		1492	_destroy (SV *coro_sv)
1191	CODE:	1493	CODE:
1192	{	1494	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1193	struct coro *coro_src = SvSTATE (src);	1495	OUTPUT:
1194		1496	RETVAL
1195	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1196
1197	++coro_src->refcnt;
1198	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1199	}
1200		1497
1201	void	1498	void
1202	_exit (code)	1499	_exit (code)
1203	int code	1500	int code
1204	PROTOTYPE: $	1501	PROTOTYPE: $
1205	CODE:	1502	CODE:
1206	_exit (code);	1503	_exit (code);
1207		1504
1208	int	1505	int
		1506	cctx_stacksize (int new_stacksize = 0)
		1507	CODE:
		1508	RETVAL = coro_stacksize;
		1509	if (new_stacksize)
		1510	coro_stacksize = new_stacksize;
		1511	OUTPUT:
		1512	RETVAL
		1513
		1514	int
1209	cctx_count ()	1515	cctx_count ()
1210	CODE:	1516	CODE:
1211	RETVAL = cctx_count;	1517	RETVAL = cctx_count;
1212	OUTPUT:	1518	OUTPUT:
1213	RETVAL	1519	RETVAL
…		…
1217	CODE:	1523	CODE:
1218	RETVAL = cctx_idle;	1524	RETVAL = cctx_idle;
1219	OUTPUT:	1525	OUTPUT:
1220	RETVAL	1526	RETVAL
1221		1527
		1528	void
		1529	list ()
		1530	PPCODE:
		1531	{
		1532	struct coro *coro;
		1533	for (coro = coro_first; coro; coro = coro->next)
		1534	if (coro->hv)
		1535	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1536	}
		1537
		1538	void
		1539	call (Coro::State coro, SV *coderef)
		1540	ALIAS:
		1541	eval = 1
		1542	CODE:
		1543	{
		1544	if (coro->mainstack)
		1545	{
		1546	struct coro temp;
		1547	Zero (&temp, 1, struct coro);
		1548
		1549	if (!(coro->flags & CF_RUNNING))
		1550	{
		1551	save_perl (aTHX_ &temp);
		1552	load_perl (aTHX_ coro);
		1553	}
		1554
		1555	{
		1556	dSP;
		1557	ENTER;
		1558	SAVETMPS;
		1559	PUSHMARK (SP);
		1560	PUTBACK;
		1561	if (ix)
		1562	eval_sv (coderef, 0);
		1563	else
		1564	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1565	SPAGAIN;
		1566	FREETMPS;
		1567	LEAVE;
		1568	PUTBACK;
		1569	}
		1570
		1571	if (!(coro->flags & CF_RUNNING))
		1572	{
		1573	save_perl (aTHX_ coro);
		1574	load_perl (aTHX_ &temp);
		1575	}
		1576	}
		1577	}
		1578
		1579	SV *
		1580	is_ready (Coro::State coro)
		1581	PROTOTYPE: $
		1582	ALIAS:
		1583	is_ready = CF_READY
		1584	is_running = CF_RUNNING
		1585	is_new = CF_NEW
		1586	is_destroyed = CF_DESTROYED
		1587	CODE:
		1588	RETVAL = boolSV (coro->flags & ix);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	void
		1593	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1594
		1595	SV *
		1596	has_stack (Coro::State coro)
		1597	PROTOTYPE: $
		1598	CODE:
		1599	RETVAL = boolSV (!!coro->cctx);
		1600	OUTPUT:
		1601	RETVAL
		1602
		1603	int
		1604	is_traced (Coro::State coro)
		1605	PROTOTYPE: $
		1606	CODE:
		1607	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1608	OUTPUT:
		1609	RETVAL
		1610
		1611	IV
		1612	rss (Coro::State coro)
		1613	PROTOTYPE: $
		1614	ALIAS:
		1615	usecount = 1
		1616	CODE:
		1617	switch (ix)
		1618	{
		1619	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1620	case 1: RETVAL = coro->usecount; break;
		1621	}
		1622	OUTPUT:
		1623	RETVAL
		1624
		1625
1222	MODULE = Coro::State PACKAGE = Coro	1626	MODULE = Coro::State PACKAGE = Coro
1223		1627
1224	BOOT:	1628	BOOT:
1225	{	1629	{
1226	int i;	1630	int i;
		1631
		1632	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1633	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1634	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1635
		1636	coro_current = get_sv ("Coro::current", FALSE);
		1637	SvREADONLY_on (coro_current);
1227		1638
1228	coro_stash = gv_stashpv ("Coro", TRUE);	1639	coro_stash = gv_stashpv ("Coro", TRUE);
1229		1640
1230	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1641	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1231	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1642	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1232	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1643	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1233	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1644	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1234	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1645	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1235	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1646	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1236		1647
1237	coro_current = get_sv ("Coro::current", FALSE);
1238	SvREADONLY_on (coro_current);
1239
1240	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1648	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1241	coro_ready[i] = newAV ();	1649	coro_ready[i] = newAV ();
1242		1650
1243	{	1651	{
1244	SV *sv = perl_get_sv("Coro::API", 1);	1652	SV *sv = perl_get_sv("Coro::API", 1);
1245		1653
1246	coroapi.schedule = api_schedule;	1654	coroapi.schedule = api_schedule;
1247	coroapi.save = api_save;
1248	coroapi.cede = api_cede;	1655	coroapi.cede = api_cede;
1249	coroapi.cede_notself = api_cede_notself;	1656	coroapi.cede_notself = api_cede_notself;
1250	coroapi.ready = api_ready;	1657	coroapi.ready = api_ready;
1251	coroapi.is_ready = api_is_ready;	1658	coroapi.is_ready = api_is_ready;
1252	coroapi.nready = &coro_nready;	1659	coroapi.nready = &coro_nready;
…		…
1293	CODE:	1700	CODE:
1294	RETVAL = boolSV (api_ready (self));	1701	RETVAL = boolSV (api_ready (self));
1295	OUTPUT:	1702	OUTPUT:
1296	RETVAL	1703	RETVAL
1297		1704
1298	SV *
1299	is_ready (SV *self)
1300	PROTOTYPE: $
1301	CODE:
1302	RETVAL = boolSV (api_is_ready (self));
1303	OUTPUT:
1304	RETVAL
1305
1306	int	1705	int
1307	nready (...)	1706	nready (...)
1308	PROTOTYPE:	1707	PROTOTYPE:
1309	CODE:	1708	CODE:
1310	RETVAL = coro_nready;	1709	RETVAL = coro_nready;
1311	OUTPUT:	1710	OUTPUT:
1312	RETVAL	1711	RETVAL
1313		1712
		1713	# for async_pool speedup
		1714	void
		1715	_pool_1 (SV *cb)
		1716	CODE:
		1717	{
		1718	struct coro *coro = SvSTATE (coro_current);
		1719	HV hv = (HV )SvRV (coro_current);
		1720	AV *defav = GvAV (PL_defgv);
		1721	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1722	AV *invoke_av;
		1723	int i, len;
		1724
		1725	if (!invoke)
		1726	croak ("\3terminate\2\n");
		1727
		1728	SvREFCNT_dec (coro->asp_deffh);
		1729	coro->asp_deffh = SvREFCNT_inc (PL_defoutgv);
		1730
		1731	hv_store (hv, "desc", sizeof ("desc") - 1,
		1732	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1733
		1734	invoke_av = (AV *)SvRV (invoke);
		1735	len = av_len (invoke_av);
		1736
		1737	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1738
		1739	if (len > 0)
		1740	{
		1741	av_fill (defav, len - 1);
		1742	for (i = 0; i < len; ++i)
		1743	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1744	}
		1745
		1746	SvREFCNT_dec (invoke);
		1747	}
		1748
		1749	void
		1750	_pool_2 (SV *cb)
		1751	CODE:
		1752	{
		1753	struct coro *coro = SvSTATE (coro_current);
		1754
		1755	sv_setsv (cb, &PL_sv_undef);
		1756
		1757	SvREFCNT_dec (PL_defoutgv); PL_defoutgv = coro->asp_deffh;
		1758	coro->asp_deffh = 0;
		1759
		1760	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1761	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1762	croak ("\3terminate\2\n");
		1763
		1764	av_clear (GvAV (PL_defgv));
		1765	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1766	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1767
		1768	coro->prio = 0;
		1769
		1770	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1771	api_trace (coro_current, 0);
		1772
		1773	av_push (av_async_pool, newSVsv (coro_current));
		1774	}
		1775
		1776
1314	MODULE = Coro::State PACKAGE = Coro::AIO	1777	MODULE = Coro::State PACKAGE = Coro::AIO
1315		1778
1316	SV *	1779	SV *
1317	_get_state ()	1780	_get_state ()
1318	CODE:	1781	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.132 by root, Fri Dec 29 13:03:05 2006 UTC vs. Revision 1.183 by root, Wed Oct 3 19:19:06 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.132 by root, Fri Dec 29 13:03:05 2006 UTC vs.
Revision 1.183 by root, Wed Oct 3 19:19:06 2007 UTC