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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.170 by root, Thu Sep 27 20:14:49 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# include <valgrind/valgrind.h>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	81	# undef CORO_STACKGUARD
77	#endif	82	#endif
78		83
79	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
81	#endif	86	#endif
82		87
83	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	91	#endif
87		92
88	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macros try to return the current stack pointer, in an as
89	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
93		97
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		99
96	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
112	#else	116	#else
113	# define LOCK (void)0	117	# define LOCK (void)0
114	# define UNLOCK (void)0	118	# define UNLOCK (void)0
115	#endif	119	#endif
116		120
		121	/* helper storage struct for Coro::AIO */
117	struct io_state	122	struct io_state
118	{	123	{
119	int errorno;	124	int errorno;
120	I32 laststype;	125	I32 laststype;
121	int laststatval;	126	int laststatval;
122	Stat_t statcache;	127	Stat_t statcache;
123	};	128	};
124		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
125	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
126	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
127	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
128	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
129		136
		137	/* async_pool helper stuff */
		138	static SV *sv_pool_rss;
		139	static SV *sv_pool_size;
		140	static AV *av_async_pool;
		141
130	static struct coro_cctx *cctx_first;	142	static struct coro_cctx *cctx_first;
131	static int cctx_count, cctx_idle;	143	static int cctx_count, cctx_idle;
		144
		145	enum {
		146	CC_MAPPED = 0x01,
		147	CC_NOREUSE = 0x02, /* throw this away after tracing */
		148	CC_TRACE = 0x04,
		149	CC_TRACE_SUB = 0x08, /* trace sub calls */
		150	CC_TRACE_LINE = 0x10, /* trace each statement */
		151	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		152	};
132		153
133	/* this is a structure representing a c-level coroutine */	154	/* this is a structure representing a c-level coroutine */
134	typedef struct coro_cctx {	155	typedef struct coro_cctx {
135	struct coro_cctx *next;	156	struct coro_cctx *next;
136		157
137	/* the stack */	158	/* the stack */
138	void *sptr;	159	void *sptr;
139	long ssize; /* positive == mmap, otherwise malloc */	160	size_t ssize;
140		161
141	/* cpu state */	162	/* cpu state */
142	void idle_sp; / sp of top-level transfer/schedule/cede call */	163	void idle_sp; / sp of top-level transfer/schedule/cede call */
143	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	164	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
144	JMPENV *top_env;	165	JMPENV *top_env;
145	coro_context cctx;	166	coro_context cctx;
146		167
147	int inuse;
148
149	#if USE_VALGRIND	168	#if CORO_USE_VALGRIND
150	int valgrind_id;	169	int valgrind_id;
151	#endif	170	#endif
		171	unsigned char flags;
152	} coro_cctx;	172	} coro_cctx;
153		173
154	enum {	174	enum {
155	CF_RUNNING = 0x0001, /* coroutine is running */	175	CF_RUNNING = 0x0001, /* coroutine is running */
156	CF_READY = 0x0002, /* coroutine is ready */	176	CF_READY = 0x0002, /* coroutine is ready */
…		…
171		191
172	/* optionally saved, might be zero */	192	/* optionally saved, might be zero */
173	AV defav; / @_ */	193	AV defav; / @_ */
174	SV defsv; / $_ */	194	SV defsv; / $_ */
175	SV errsv; / $@ */	195	SV errsv; / $@ */
		196	GV deffh; / default filehandle */
176	SV irssv; / $/ */	197	SV irssv; / $/ */
177	SV irssv_sv; / real $/ cache */	198	SV irssv_sv; / real $/ cache */
178		199
179	#define VAR(name,type) type name;	200	#define VAR(name,type) type name;
180	# include "state.h"	201	# include "state.h"
181	#undef VAR	202	#undef VAR
182		203
183	/* coro process data */	204	/* coro process data */
184	int prio;	205	int prio;
		206
		207	/* linked list */
		208	struct coro next, prev;
		209	HV hv; / the perl hash associated with this coro, if any */
185	};	210	};
186		211
187	typedef struct coro *Coro__State;	212	typedef struct coro *Coro__State;
188	typedef struct coro *Coro__State_or_hashref;	213	typedef struct coro *Coro__State_or_hashref;
189		214
		215	/ Coro ******************************************************************/
		216
		217	#define PRIO_MAX 3
		218	#define PRIO_HIGH 1
		219	#define PRIO_NORMAL 0
		220	#define PRIO_LOW -1
		221	#define PRIO_IDLE -3
		222	#define PRIO_MIN -4
		223
		224	/* for Coro.pm */
		225	static SV *coro_current;
		226	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		227	static int coro_nready;
		228	static struct coro *coro_first;
		229
		230	/ lowlevel stuff ********************************************************/
		231
190	static AV *	232	static AV *
191	coro_clone_padlist (CV *cv)	233	coro_clone_padlist (pTHX_ CV *cv)
192	{	234	{
193	AV *padlist = CvPADLIST (cv);	235	AV *padlist = CvPADLIST (cv);
194	AV newpadlist, newpad;	236	AV newpadlist, newpad;
195		237
196	newpadlist = newAV ();	238	newpadlist = newAV ();
…		…
208		250
209	return newpadlist;	251	return newpadlist;
210	}	252	}
211		253
212	static void	254	static void
213	free_padlist (AV *padlist)	255	free_padlist (pTHX_ AV *padlist)
214	{	256	{
215	/* may be during global destruction */	257	/* may be during global destruction */
216	if (SvREFCNT (padlist))	258	if (SvREFCNT (padlist))
217	{	259	{
218	I32 i = AvFILLp (padlist);	260	I32 i = AvFILLp (padlist);
…		…
239	AV *padlist;	281	AV *padlist;
240	AV av = (AV )mg->mg_obj;	282	AV av = (AV )mg->mg_obj;
241		283
242	/* casting is fun. */	284	/* casting is fun. */
243	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	285	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
244	free_padlist (padlist);	286	free_padlist (aTHX_ padlist);
245		287
246	SvREFCNT_dec (av);	288	SvREFCNT_dec (av);
247		289
248	return 0;	290	return 0;
249	}	291	}
…		…
257	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	299	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
258	? SvMAGIC (cv) \	300	? SvMAGIC (cv) \
259	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	301	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
260	: 0	302	: 0
261		303
		304	static struct coro *
		305	SvSTATE_ (pTHX_ SV *coro)
		306	{
		307	HV *stash;
		308	MAGIC *mg;
		309
		310	if (SvROK (coro))
		311	coro = SvRV (coro);
		312
		313	stash = SvSTASH (coro);
		314	if (stash != coro_stash && stash != coro_state_stash)
		315	{
		316	/* very slow, but rare, check */
		317	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		318	croak ("Coro::State object required");
		319	}
		320
		321	mg = CORO_MAGIC (coro);
		322	return (struct coro *)mg->mg_ptr;
		323	}
		324
		325	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		326
262	/* the next two functions merely cache the padlists */	327	/* the next two functions merely cache the padlists */
263	static void	328	static void
264	get_padlist (CV *cv)	329	get_padlist (pTHX_ CV *cv)
265	{	330	{
266	MAGIC *mg = CORO_MAGIC (cv);	331	MAGIC *mg = CORO_MAGIC (cv);
267	AV *av;	332	AV *av;
268		333
269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	334	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	335	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
271	else	336	else
272	{	337	{
273	#if PREFER_PERL_FUNCTIONS	338	#if CORO_PREFER_PERL_FUNCTIONS
274	/* this is probably cleaner, but also slower? */	339	/* this is probably cleaner, but also slower? */
275	CV *cp = Perl_cv_clone (cv);	340	CV *cp = Perl_cv_clone (cv);
276	CvPADLIST (cv) = CvPADLIST (cp);	341	CvPADLIST (cv) = CvPADLIST (cp);
277	CvPADLIST (cp) = 0;	342	CvPADLIST (cp) = 0;
278	SvREFCNT_dec (cp);	343	SvREFCNT_dec (cp);
279	#else	344	#else
280	CvPADLIST (cv) = coro_clone_padlist (cv);	345	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
281	#endif	346	#endif
282	}	347	}
283	}	348	}
284		349
285	static void	350	static void
286	put_padlist (CV *cv)	351	put_padlist (pTHX_ CV *cv)
287	{	352	{
288	MAGIC *mg = CORO_MAGIC (cv);	353	MAGIC *mg = CORO_MAGIC (cv);
289	AV *av;	354	AV *av;
290		355
291	if (!mg)	356	if (!mg)
…		…
302	av_extend (av, AvMAX (av) + 1);	367	av_extend (av, AvMAX (av) + 1);
303		368
304	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	369	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
305	}	370	}
306		371
		372	/ load & save, init *****************************************************/
		373
307	#define SB do {	374	#define SB do {
308	#define SE } while (0)	375	#define SE } while (0)
309		376
310	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	377	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
311		378
312	static void	379	static void
313	load_perl (Coro__State c)	380	load_perl (pTHX_ Coro__State c)
314	{	381	{
315	#define VAR(name,type) PL_ ## name = c->name;	382	#define VAR(name,type) PL_ ## name = c->name;
316	# include "state.h"	383	# include "state.h"
317	#undef VAR	384	#undef VAR
318		385
319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	386	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	387	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
321	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	388	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		389	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		390
322	if (c->irssv)	391	if (c->irssv)
323	{	392	{
324	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	393	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		394	{
325	SvREFCNT_dec (c->irssv);	395	SvREFCNT_dec (c->irssv);
		396	c->irssv = 0;
		397	}
326	else	398	else
327	{	399	{
328	REPLACE_SV (PL_rs, c->irssv);	400	REPLACE_SV (PL_rs, c->irssv);
329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	401	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
330	sv_setsv (c->irssv_sv, PL_rs);	402	sv_setsv (c->irssv_sv, PL_rs);
…		…
336	CV *cv;	408	CV *cv;
337		409
338	/* now do the ugly restore mess */	410	/* now do the ugly restore mess */
339	while ((cv = (CV *)POPs))	411	while ((cv = (CV *)POPs))
340	{	412	{
341	put_padlist (cv); /* mark this padlist as available */	413	put_padlist (aTHX_ cv); /* mark this padlist as available */
342	CvDEPTH (cv) = PTR2IV (POPs);	414	CvDEPTH (cv) = PTR2IV (POPs);
343	CvPADLIST (cv) = (AV *)POPs;	415	CvPADLIST (cv) = (AV *)POPs;
344	}	416	}
345		417
346	PUTBACK;	418	PUTBACK;
347	}	419	}
348	}	420	}
349		421
350	static void	422	static void
351	save_perl (Coro__State c)	423	save_perl (pTHX_ Coro__State c)
352	{	424	{
353	{	425	{
354	dSP;	426	dSP;
355	I32 cxix = cxstack_ix;	427	I32 cxix = cxstack_ix;
356	PERL_CONTEXT *ccstk = cxstack;	428	PERL_CONTEXT *ccstk = cxstack;
…		…
359	/*	431	/*
360	* the worst thing you can imagine happens first - we have to save	432	* the worst thing you can imagine happens first - we have to save
361	* (and reinitialize) all cv's in the whole callchain :(	433	* (and reinitialize) all cv's in the whole callchain :(
362	*/	434	*/
363		435
364	EXTEND (SP, 3 + 1);
365	PUSHs (Nullsv);	436	XPUSHs (Nullsv);
366	/* this loop was inspired by pp_caller */	437	/* this loop was inspired by pp_caller */
367	for (;;)	438	for (;;)
368	{	439	{
369	while (cxix >= 0)	440	while (cxix >= 0)
370	{	441	{
371	PERL_CONTEXT *cx = &ccstk[cxix--];	442	PERL_CONTEXT *cx = &ccstk[cxix--];
372		443
373	if (CxTYPE (cx) == CXt_SUB)	444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
374	{	445	{
375	CV *cv = cx->blk_sub.cv;	446	CV *cv = cx->blk_sub.cv;
376		447
377	if (CvDEPTH (cv))	448	if (CvDEPTH (cv))
378	{	449	{
…		…
380	PUSHs ((SV *)CvPADLIST (cv));	451	PUSHs ((SV *)CvPADLIST (cv));
381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
382	PUSHs ((SV *)cv);	453	PUSHs ((SV *)cv);
383		454
384	CvDEPTH (cv) = 0;	455	CvDEPTH (cv) = 0;
385	get_padlist (cv);	456	get_padlist (aTHX_ cv);
386	}	457	}
387	}	458	}
388	}	459	}
389		460
390	if (top_si->si_type == PERLSI_MAIN)	461	if (top_si->si_type == PERLSI_MAIN)
391	break;	462	break;
392		463
393	top_si = top_si->si_prev;	464	top_si = top_si->si_prev;
394	ccstk = top_si->si_cxstack;	465	ccstk = top_si->si_cxstack;
395	cxix = top_si->si_cxix;	466	cxix = top_si->si_cxix;
396	}	467	}
397		468
398	PUTBACK;	469	PUTBACK;
399	}	470	}
400		471
401	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	472	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	473	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
403	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	474	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		475	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
404	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	476	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
405		477
406	#define VAR(name,type)c->name = PL_ ## name;	478	#define VAR(name,type)c->name = PL_ ## name;
407	# include "state.h"	479	# include "state.h"
408	#undef VAR	480	#undef VAR
…		…
412	* allocate various perl stacks. This is an exact copy	484	* allocate various perl stacks. This is an exact copy
413	* of perl.c:init_stacks, except that it uses less memory	485	* of perl.c:init_stacks, except that it uses less memory
414	* on the (sometimes correct) assumption that coroutines do	486	* on the (sometimes correct) assumption that coroutines do
415	* not usually need a lot of stackspace.	487	* not usually need a lot of stackspace.
416	*/	488	*/
417	#if PREFER_PERL_FUNCTIONS	489	#if CORO_PREFER_PERL_FUNCTIONS
418	# define coro_init_stacks init_stacks	490	# define coro_init_stacks init_stacks
419	#else	491	#else
420	static void	492	static void
421	coro_init_stacks ()	493	coro_init_stacks (pTHX)
422	{	494	{
423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	495	PL_curstackinfo = new_stackinfo(64, 6);
424	PL_curstackinfo->si_type = PERLSI_MAIN;	496	PL_curstackinfo->si_type = PERLSI_MAIN;
425	PL_curstack = PL_curstackinfo->si_stack;	497	PL_curstack = PL_curstackinfo->si_stack;
426	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	498	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
427		499
428	PL_stack_base = AvARRAY(PL_curstack);	500	PL_stack_base = AvARRAY(PL_curstack);
429	PL_stack_sp = PL_stack_base;	501	PL_stack_sp = PL_stack_base;
430	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	502	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
431		503
432	New(50,PL_tmps_stack,128,SV*);	504	New(50,PL_tmps_stack,64,SV*);
433	PL_tmps_floor = -1;	505	PL_tmps_floor = -1;
434	PL_tmps_ix = -1;	506	PL_tmps_ix = -1;
435	PL_tmps_max = 128;	507	PL_tmps_max = 64;
436		508
437	New(54,PL_markstack,32,I32);	509	New(54,PL_markstack,16,I32);
438	PL_markstack_ptr = PL_markstack;	510	PL_markstack_ptr = PL_markstack;
439	PL_markstack_max = PL_markstack + 32;	511	PL_markstack_max = PL_markstack + 16;
440		512
441	#ifdef SET_MARK_OFFSET	513	#ifdef SET_MARK_OFFSET
442	SET_MARK_OFFSET;	514	SET_MARK_OFFSET;
443	#endif	515	#endif
444		516
445	New(54,PL_scopestack,32,I32);	517	New(54,PL_scopestack,16,I32);
446	PL_scopestack_ix = 0;	518	PL_scopestack_ix = 0;
447	PL_scopestack_max = 32;	519	PL_scopestack_max = 16;
448		520
449	New(54,PL_savestack,64,ANY);	521	New(54,PL_savestack,64,ANY);
450	PL_savestack_ix = 0;	522	PL_savestack_ix = 0;
451	PL_savestack_max = 64;	523	PL_savestack_max = 64;
452		524
453	#if !PERL_VERSION_ATLEAST (5,9,0)	525	#if !PERL_VERSION_ATLEAST (5,9,0)
454	New(54,PL_retstack,16,OP*);	526	New(54,PL_retstack,4,OP*);
455	PL_retstack_ix = 0;	527	PL_retstack_ix = 0;
456	PL_retstack_max = 16;	528	PL_retstack_max = 4;
457	#endif	529	#endif
458	}	530	}
459	#endif	531	#endif
460		532
461	/*	533	/*
462	* destroy the stacks, the callchain etc...	534	* destroy the stacks, the callchain etc...
463	*/	535	*/
464	static void	536	static void
465	coro_destroy_stacks ()	537	coro_destroy_stacks (pTHX)
466	{	538	{
467	if (!IN_DESTRUCT)	539	if (!IN_DESTRUCT)
468	{	540	{
469	/* restore all saved variables and stuff */	541	/* restore all saved variables and stuff */
470	LEAVE_SCOPE (0);	542	LEAVE_SCOPE (0);
…		…
472		544
473	/* free all temporaries */	545	/* free all temporaries */
474	FREETMPS;	546	FREETMPS;
475	assert (PL_tmps_ix == -1);	547	assert (PL_tmps_ix == -1);
476		548
		549	/* unwind all extra stacks */
477	POPSTACK_TO (PL_mainstack);	550	POPSTACK_TO (PL_mainstack);
		551
		552	/* unwind main stack */
		553	dounwind (-1);
478	}	554	}
479		555
480	while (PL_curstackinfo->si_next)	556	while (PL_curstackinfo->si_next)
481	PL_curstackinfo = PL_curstackinfo->si_next;	557	PL_curstackinfo = PL_curstackinfo->si_next;
482		558
…		…
499	#if !PERL_VERSION_ATLEAST (5,9,0)	575	#if !PERL_VERSION_ATLEAST (5,9,0)
500	Safefree (PL_retstack);	576	Safefree (PL_retstack);
501	#endif	577	#endif
502	}	578	}
503		579
		580	static size_t
		581	coro_rss (struct coro *coro)
		582	{
		583	size_t rss = sizeof (coro);
		584
		585	if (coro->mainstack)
		586	{
		587	if (coro->flags & CF_RUNNING)
		588	{
		589	#define VAR(name,type)coro->name = PL_ ## name;
		590	# include "state.h"
		591	#undef VAR
		592	}
		593
		594	rss += sizeof (coro->curstackinfo);
		595	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		596	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		597	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		598	rss += coro->tmps_max * sizeof (SV *);
		599	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		600	rss += coro->scopestack_max * sizeof (I32);
		601	rss += coro->savestack_max * sizeof (ANY);
		602
		603	#if !PERL_VERSION_ATLEAST (5,9,0)
		604	rss += coro->retstack_max * sizeof (OP *);
		605	#endif
		606	}
		607
		608	return rss;
		609	}
		610
		611	/ coroutine stack handling **********************************************/
		612
504	static void	613	static void
505	setup_coro (struct coro *coro)	614	setup_coro (pTHX_ struct coro *coro)
506	{	615	{
507	/*	616	/*
508	* emulate part of the perl startup here.	617	* emulate part of the perl startup here.
509	*/	618	*/
510
511	coro_init_stacks ();	619	coro_init_stacks (aTHX);
512		620
		621	PL_runops = RUNOPS_DEFAULT;
513	PL_curcop = &PL_compiling;	622	PL_curcop = &PL_compiling;
514	PL_in_eval = EVAL_NULL;	623	PL_in_eval = EVAL_NULL;
		624	PL_comppad = 0;
515	PL_curpm = 0;	625	PL_curpm = 0;
516	PL_localizing = 0;	626	PL_localizing = 0;
517	PL_dirty = 0;	627	PL_dirty = 0;
518	PL_restartop = 0;	628	PL_restartop = 0;
519		629
…		…
527	Zero (&myop, 1, LOGOP);	637	Zero (&myop, 1, LOGOP);
528	myop.op_next = Nullop;	638	myop.op_next = Nullop;
529	myop.op_flags = OPf_WANT_VOID;	639	myop.op_flags = OPf_WANT_VOID;
530		640
531	PUSHMARK (SP);	641	PUSHMARK (SP);
532	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	642	XPUSHs (av_shift (GvAV (PL_defgv)));
533	PUTBACK;	643	PUTBACK;
534	PL_op = (OP *)&myop;	644	PL_op = (OP *)&myop;
535	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	645	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
536	SPAGAIN;	646	SPAGAIN;
537	}	647	}
538		648
539	ENTER; /* necessary e.g. for dounwind */	649	ENTER; /* necessary e.g. for dounwind */
540	}	650	}
541		651
542	static void	652	static void
543	free_coro_mortal ()	653	free_coro_mortal (pTHX)
544	{	654	{
545	if (coro_mortal)	655	if (coro_mortal)
546	{	656	{
547	SvREFCNT_dec (coro_mortal);	657	SvREFCNT_dec (coro_mortal);
548	coro_mortal = 0;	658	coro_mortal = 0;
549	}	659	}
550	}	660	}
551		661
		662	static int
		663	runops_trace (pTHX)
		664	{
		665	COP *oldcop = 0;
		666	int oldcxix = -2;
		667	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		668	coro_cctx *cctx = coro->cctx;
		669
		670	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		671	{
		672	PERL_ASYNC_CHECK ();
		673
		674	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		675	{
		676	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		677	SV bot, top;
		678	AV av = newAV (); / return values */
		679	SV **cb;
		680	runops_proc_t old_runops = PL_runops;
		681	dSP;
		682	ENTER;
		683	SAVETMPS;
		684	EXTEND (SP, 3);
		685	PL_runops = RUNOPS_DEFAULT;
		686
		687	GV *gv = CvGV (cx->blk_sub.cv);
		688	SV *fullname = sv_2mortal (newSV (0));
		689	if (isGV (gv))
		690	gv_efullname3 (fullname, gv, 0);
		691
		692	bot = PL_stack_base + cx->blk_oldsp + 1;
		693	top = cx->blk_gimme == G_ARRAY ? SP + 1
		694	: cx->blk_gimme == G_SCALAR ? bot + 1
		695	: bot;
		696
		697	while (bot < top)
		698	av_push (av, SvREFCNT_inc (*bot++));
		699
		700	PUSHMARK (SP);
		701	PUSHs (&PL_sv_no);
		702	PUSHs (fullname);
		703	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		704	PUTBACK;
		705	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		706	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		707	SPAGAIN;
		708
		709	FREETMPS;
		710	LEAVE;
		711	PL_runops = old_runops;
		712	}
		713
		714	if (oldcop != PL_curcop)
		715	{
		716	oldcop = PL_curcop;
		717
		718	if (PL_curcop != &PL_compiling)
		719	{
		720	SV **cb;
		721	runops_proc_t old_runops = PL_runops;
		722	dSP;
		723	ENTER;
		724	SAVETMPS;
		725	EXTEND (SP, 3);
		726	PL_runops = RUNOPS_DEFAULT;
		727
		728	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		729	{
		730	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		731
		732	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		733	{
		734	GV *gv = CvGV (cx->blk_sub.cv);
		735	SV *fullname = sv_2mortal (newSV (0));
		736	if (isGV (gv))
		737	gv_efullname3 (fullname, gv, 0);
		738
		739	PUSHMARK (SP);
		740	PUSHs (&PL_sv_yes);
		741	PUSHs (fullname);
		742	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		743	PUTBACK;
		744	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		745	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		746	SPAGAIN;
		747	}
		748
		749	oldcxix = cxstack_ix;
		750	}
		751
		752	if (cctx->flags & CC_TRACE_LINE)
		753	{
		754	PUSHMARK (SP);
		755	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		756	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		757	PUTBACK;
		758	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		759	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		760	SPAGAIN;
		761	}
		762
		763	FREETMPS;
		764	LEAVE;
		765	PL_runops = old_runops;
		766	}
		767	}
		768	}
		769
		770	TAINT_NOT;
		771	return 0;
		772	}
		773
552	/* inject a fake call to Coro::State::_cctx_init into the execution */	774	/* inject a fake call to Coro::State::_cctx_init into the execution */
		775	/* _cctx_init should be careful, as it could be called at almost any time */
		776	/* during execution of a perl program */
553	static void NOINLINE	777	static void NOINLINE
554	prepare_cctx (coro_cctx *cctx)	778	prepare_cctx (pTHX_ coro_cctx *cctx)
555	{	779	{
556	dSP;	780	dSP;
557	LOGOP myop;	781	LOGOP myop;
		782
		783	PL_top_env = &PL_start_env;
		784
		785	if (cctx->flags & CC_TRACE)
		786	PL_runops = runops_trace;
558		787
559	Zero (&myop, 1, LOGOP);	788	Zero (&myop, 1, LOGOP);
560	myop.op_next = PL_op;	789	myop.op_next = PL_op;
561	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	790	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
562		791
…		…
568	PL_op = (OP *)&myop;	797	PL_op = (OP *)&myop;
569	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	798	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
570	SPAGAIN;	799	SPAGAIN;
571	}	800	}
572		801
		802	/*
		803	* this is a _very_ stripped down perl interpreter ;)
		804	*/
573	static void	805	static void
574	coro_run (void *arg)	806	coro_run (void *arg)
575	{	807	{
		808	dTHX;
		809
576	/* coro_run is the alternative tail of transfer(), so unlock here. */	810	/* coro_run is the alternative tail of transfer(), so unlock here. */
577	UNLOCK;	811	UNLOCK;
578		812
579	/*	813	/* we now skip the entersub that lead to transfer() */
580	* this is a _very_ stripped down perl interpreter ;)	814	PL_op = PL_op->op_next;
581	*/
582	PL_top_env = &PL_start_env;
583		815
584	/* inject call to cctx_init */	816	/* inject a fake subroutine call to cctx_init */
585	prepare_cctx ((coro_cctx *)arg);	817	prepare_cctx (aTHX_ (coro_cctx *)arg);
586		818
587	/* somebody will hit me for both perl_run and PL_restartop */	819	/* somebody or something will hit me for both perl_run and PL_restartop */
588	PL_restartop = PL_op;	820	PL_restartop = PL_op;
589	perl_run (PL_curinterp);	821	perl_run (PL_curinterp);
590		822
591	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	823	/*
592	abort ();	824	* If perl-run returns we assume exit() was being called or the coro
		825	* fell off the end, which seems to be the only valid (non-bug)
		826	* reason for perl_run to return. We try to exit by jumping to the
		827	* bootstrap-time "top" top_env, as we cannot restore the "main"
		828	* coroutine as Coro has no such concept
		829	*/
		830	PL_top_env = main_top_env;
		831	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
593	}	832	}
594		833
595	static coro_cctx *	834	static coro_cctx *
596	cctx_new ()	835	cctx_new ()
597	{	836	{
598	coro_cctx *cctx;	837	coro_cctx *cctx;
		838	void *stack_start;
		839	size_t stack_size;
599		840
600	++cctx_count;	841	++cctx_count;
601		842
602	Newz (0, cctx, 1, coro_cctx);	843	Newz (0, cctx, 1, coro_cctx);
603		844
604	#if HAVE_MMAP	845	#if HAVE_MMAP
605		846
606	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	847	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
607	/* mmap supposedly does allocate-on-write for us */	848	/* mmap supposedly does allocate-on-write for us */
608	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	849	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
609		850
610	if (cctx->sptr == (void *)-1)	851	if (cctx->sptr != (void *)-1)
611	{
612	perror ("FATAL: unable to mmap stack for coroutine");
613	_exit (EXIT_FAILURE);
614	}	852	{
615
616	# if STACKGUARD	853	# if CORO_STACKGUARD
617	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	854	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
618	# endif	855	# endif
		856	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		857	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		858	cctx->flags \|= CC_MAPPED;
		859	}
		860	else
		861	#endif
		862	{
		863	cctx->ssize = coro_stacksize * (long)sizeof (long);
		864	New (0, cctx->sptr, coro_stacksize, long);
619		865
620	#else
621
622	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, cctx->sptr, STACKSIZE, long);
624
625	if (!cctx->sptr)	866	if (!cctx->sptr)
626	{	867	{
627	perror ("FATAL: unable to malloc stack for coroutine");	868	perror ("FATAL: unable to allocate stack for coroutine");
628	_exit (EXIT_FAILURE);	869	_exit (EXIT_FAILURE);
629	}	870	}
630		871
631	#endif	872	stack_start = cctx->sptr;
		873	stack_size = cctx->ssize;
		874	}
632		875
633	#if USE_VALGRIND	876	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
634	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
635	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
636	cctx->ssize + (char *)cctx->sptr
637	);
638	#endif
639
640	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	877	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
641		878
642	return cctx;	879	return cctx;
643	}	880	}
644		881
645	static void	882	static void
…		…
648	if (!cctx)	885	if (!cctx)
649	return;	886	return;
650		887
651	--cctx_count;	888	--cctx_count;
652		889
653	#if USE_VALGRIND	890	#if CORO_USE_VALGRIND
654	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	891	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
655	#endif	892	#endif
656		893
657	#if HAVE_MMAP	894	#if HAVE_MMAP
		895	if (cctx->flags & CC_MAPPED)
658	munmap (cctx->sptr, cctx->ssize);	896	munmap (cctx->sptr, cctx->ssize);
659	#else	897	else
		898	#endif
660	Safefree (cctx->sptr);	899	Safefree (cctx->sptr);
661	#endif
662		900
663	Safefree (cctx);	901	Safefree (cctx);
664	}	902	}
665		903
666	static coro_cctx *	904	static coro_cctx *
667	cctx_get ()	905	cctx_get (pTHX)
668	{	906	{
669	coro_cctx *cctx;
670
671	if (cctx_first)	907	while (cctx_first)
672	{	908	{
673	cctx = cctx_first;	909	coro_cctx *cctx = cctx_first;
674	cctx_first = cctx->next;	910	cctx_first = cctx->next;
675	--cctx_idle;	911	--cctx_idle;
676	}	912
677	else	913	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
678	{	914	return cctx;
679	cctx = cctx_new ();	915
680	PL_op = PL_op->op_next;	916	cctx_destroy (cctx);
681	}	917	}
682		918
683	return cctx;	919	return cctx_new ();
684	}	920	}
685		921
686	static void	922	static void
687	cctx_put (coro_cctx *cctx)	923	cctx_put (coro_cctx *cctx)
688	{	924	{
…		…
691	{	927	{
692	coro_cctx *first = cctx_first;	928	coro_cctx *first = cctx_first;
693	cctx_first = first->next;	929	cctx_first = first->next;
694	--cctx_idle;	930	--cctx_idle;
695		931
696	assert (!first->inuse);
697	cctx_destroy (first);	932	cctx_destroy (first);
698	}	933	}
699		934
700	++cctx_idle;	935	++cctx_idle;
701	cctx->next = cctx_first;	936	cctx->next = cctx_first;
702	cctx_first = cctx;	937	cctx_first = cctx;
703	}	938	}
704		939
705	/* never call directly, always through the coro_state_transfer global variable */	940	/ coroutine switching ***************************************************/
		941
706	static void NOINLINE	942	static void NOINLINE
		943	transfer_check (pTHX_ struct coro prev, struct coro next)
		944	{
		945	if (prev != next)
		946	{
		947	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		948	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		949
		950	if (next->flags & CF_RUNNING)
		951	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		952
		953	if (next->flags & CF_DESTROYED)
		954	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		955
		956	if (PL_lex_state != LEX_NOTPARSING)
		957	croak ("Coro::State::transfer called while parsing, but this is not supported");
		958	}
		959	}
		960
		961	/* always use the TRANSFER macro */
		962	static void NOINLINE
707	transfer (struct coro prev, struct coro next)	963	transfer (pTHX_ struct coro prev, struct coro next)
708	{	964	{
709	dSTACKLEVEL;	965	dSTACKLEVEL;
710		966
711	/* sometimes transfer is only called to set idle_sp */	967	/* sometimes transfer is only called to set idle_sp */
712	if (!next)	968	if (!next)
…		…
720		976
721	if (prev->flags & CF_NEW)	977	if (prev->flags & CF_NEW)
722	{	978	{
723	/* create a new empty context */	979	/* create a new empty context */
724	Newz (0, prev->cctx, 1, coro_cctx);	980	Newz (0, prev->cctx, 1, coro_cctx);
725	prev->cctx->inuse = 1;
726	prev->flags &= ~CF_NEW;	981	prev->flags &= ~CF_NEW;
727	prev->flags \|= CF_RUNNING;	982	prev->flags \|= CF_RUNNING;
728	}	983	}
729
730	/TODO: must not croak here /
731	if (!prev->flags & CF_RUNNING)
732	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
733
734	if (next->flags & CF_RUNNING)
735	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
736
737	if (next->flags & CF_DESTROYED)
738	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
739		984
740	prev->flags &= ~CF_RUNNING;	985	prev->flags &= ~CF_RUNNING;
741	next->flags \|= CF_RUNNING;	986	next->flags \|= CF_RUNNING;
742		987
743	LOCK;	988	LOCK;
…		…
745	if (next->flags & CF_NEW)	990	if (next->flags & CF_NEW)
746	{	991	{
747	/* need to start coroutine */	992	/* need to start coroutine */
748	next->flags &= ~CF_NEW;	993	next->flags &= ~CF_NEW;
749	/* first get rid of the old state */	994	/* first get rid of the old state */
750	save_perl (prev);	995	save_perl (aTHX_ prev);
751	/* setup coroutine call */	996	/* setup coroutine call */
752	setup_coro (next);	997	setup_coro (aTHX_ next);
753	/* need a new stack */
754	assert (!next->cctx);
755	}	998	}
756	else	999	else
757	{	1000	{
758	/* coroutine already started */	1001	/* coroutine already started */
759	save_perl (prev);	1002	save_perl (aTHX_ prev);
760	load_perl (next);	1003	load_perl (aTHX_ next);
761	}	1004	}
762		1005
763	prev__cctx = prev->cctx;	1006	prev__cctx = prev->cctx;
764		1007
765	/* possibly "free" the cctx */	1008	/* possibly "free" the cctx */
766	if (prev__cctx->idle_sp == STACKLEVEL)	1009	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
767	{	1010	{
768	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1011	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
769	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1012	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
770		1013
771	prev->cctx = 0;	1014	prev->cctx = 0;
772		1015
773	cctx_put (prev__cctx);	1016	cctx_put (prev__cctx);
774	prev__cctx->inuse = 0;
775	}	1017	}
776		1018
777	if (!next->cctx)	1019	if (!next->cctx)
778	{
779	next->cctx = cctx_get ();	1020	next->cctx = cctx_get (aTHX);
780	assert (!next->cctx->inuse);
781	next->cctx->inuse = 1;
782	}
783		1021
784	if (prev__cctx != next->cctx)	1022	if (prev__cctx != next->cctx)
785	{	1023	{
786	prev__cctx->top_env = PL_top_env;	1024	prev__cctx->top_env = PL_top_env;
787	PL_top_env = next->cctx->top_env;	1025	PL_top_env = next->cctx->top_env;
788	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1026	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
789	}	1027	}
790		1028
791	free_coro_mortal ();	1029	free_coro_mortal (aTHX);
792	UNLOCK;	1030	UNLOCK;
793	}	1031	}
794	}	1032	}
795		1033
796	struct transfer_args	1034	struct transfer_args
797	{	1035	{
798	struct coro prev, next;	1036	struct coro prev, next;
799	};	1037	};
800		1038
801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1039	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1040	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
		1041
		1042	/ high level stuff ******************************************************/
802		1043
803	static int	1044	static int
804	coro_state_destroy (struct coro *coro)	1045	coro_state_destroy (pTHX_ struct coro *coro)
805	{	1046	{
806	if (coro->refcnt--)
807	return 0;
808
809	if (coro->flags & CF_DESTROYED)	1047	if (coro->flags & CF_DESTROYED)
810	return 0;	1048	return 0;
811		1049
812	coro->flags \|= CF_DESTROYED;	1050	coro->flags \|= CF_DESTROYED;
		1051
		1052	if (coro->flags & CF_READY)
		1053	{
		1054	/* reduce nready, as destroying a ready coro effectively unreadies it */
		1055	/* alternative: look through all ready queues and remove the coro */
		1056	LOCK;
		1057	--coro_nready;
		1058	UNLOCK;
		1059	}
		1060	else
		1061	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
813		1062
814	if (coro->mainstack && coro->mainstack != main_mainstack)	1063	if (coro->mainstack && coro->mainstack != main_mainstack)
815	{	1064	{
		1065	struct coro temp;
		1066
816	assert (!(coro->flags & CF_RUNNING));	1067	assert (!(coro->flags & CF_RUNNING));
817		1068
818	struct coro temp;
819	Zero (&temp, 1, struct coro);	1069	Zero (&temp, 1, struct coro);
820	temp.save = CORO_SAVE_ALL;	1070	temp.save = CORO_SAVE_ALL;
821		1071
822	if (coro->flags & CF_RUNNING)	1072	if (coro->flags & CF_RUNNING)
823	croak ("FATAL: tried to destroy currently running coroutine");	1073	croak ("FATAL: tried to destroy currently running coroutine");
824		1074
825	save_perl (&temp);	1075	save_perl (aTHX_ &temp);
826	load_perl (coro);	1076	load_perl (aTHX_ coro);
827		1077
828	coro_destroy_stacks ();	1078	coro_destroy_stacks (aTHX);
829		1079
830	load_perl (&temp); /* this will get rid of defsv etc.. */	1080	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
831		1081
832	coro->mainstack = 0;	1082	coro->mainstack = 0;
833	}	1083	}
834		1084
835	cctx_destroy (coro->cctx);	1085	cctx_destroy (coro->cctx);
836	SvREFCNT_dec (coro->args);	1086	SvREFCNT_dec (coro->args);
837		1087
		1088	if (coro->next) coro->next->prev = coro->prev;
		1089	if (coro->prev) coro->prev->next = coro->next;
		1090	if (coro == coro_first) coro_first = coro->next;
		1091
838	return 1;	1092	return 1;
839	}	1093	}
840		1094
841	static int	1095	static int
842	coro_state_clear (pTHX_ SV sv, MAGIC mg)	1096	coro_state_free (pTHX_ SV sv, MAGIC mg)
843	{	1097	{
844	struct coro coro = (struct coro )mg->mg_ptr;	1098	struct coro coro = (struct coro )mg->mg_ptr;
845	mg->mg_ptr = 0;	1099	mg->mg_ptr = 0;
846		1100
		1101	coro->hv = 0;
		1102
		1103	if (--coro->refcnt < 0)
		1104	{
847	coro_state_destroy (coro);	1105	coro_state_destroy (aTHX_ coro);
848
849	if (!coro->refcnt)
850	Safefree (coro);	1106	Safefree (coro);
		1107	}
851		1108
852	return 0;	1109	return 0;
853	}	1110	}
854		1111
855	static int	1112	static int
…		…
862	return 0;	1119	return 0;
863	}	1120	}
864		1121
865	static MGVTBL coro_state_vtbl = {	1122	static MGVTBL coro_state_vtbl = {
866	0, 0, 0, 0,	1123	0, 0, 0, 0,
867	coro_state_clear,	1124	coro_state_free,
868	0,	1125	0,
869	#ifdef MGf_DUP	1126	#ifdef MGf_DUP
870	coro_state_dup,	1127	coro_state_dup,
871	#else	1128	#else
872	# define MGf_DUP 0	1129	# define MGf_DUP 0
873	#endif	1130	#endif
874	};	1131	};
875		1132
876	static struct coro *
877	SvSTATE (SV *coro)
878	{
879	HV *stash;
880	MAGIC *mg;
881
882	if (SvROK (coro))
883	coro = SvRV (coro);
884
885	stash = SvSTASH (coro);
886	if (stash != coro_stash && stash != coro_state_stash)
887	{
888	/* very slow, but rare, check */
889	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
890	croak ("Coro::State object required");
891	}
892
893	mg = SvMAGIC (coro);
894	assert (mg->mg_type == PERL_MAGIC_ext);
895	return (struct coro *)mg->mg_ptr;
896	}
897
898	static void	1133	static void
899	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1134	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
900	{	1135	{
901	ta->prev = SvSTATE (prev_sv);	1136	ta->prev = SvSTATE (prev_sv);
902	ta->next = SvSTATE (next_sv);	1137	ta->next = SvSTATE (next_sv);
		1138	TRANSFER_CHECK (*ta);
903	}	1139	}
904		1140
905	static void	1141	static void
906	api_transfer (SV prev_sv, SV next_sv)	1142	api_transfer (SV prev_sv, SV next_sv)
907	{	1143	{
		1144	dTHX;
908	struct transfer_args ta;	1145	struct transfer_args ta;
909		1146
910	prepare_transfer (&ta, prev_sv, next_sv);	1147	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
911	TRANSFER (ta);	1148	TRANSFER (ta);
912	}	1149	}
913		1150
914	static int	1151	static int
915	api_save (SV *coro_sv, int new_save)	1152	api_save (SV *coro_sv, int new_save)
916	{	1153	{
		1154	dTHX;
917	struct coro *coro = SvSTATE (coro_sv);	1155	struct coro *coro = SvSTATE (coro_sv);
918	int old_save = coro->save;	1156	int old_save = coro->save;
919		1157
920	if (new_save >= 0)	1158	if (new_save >= 0)
921	coro->save = new_save;	1159	coro->save = new_save;
…		…
923	return old_save;	1161	return old_save;
924	}	1162	}
925		1163
926	/ Coro ******************************************************************/	1164	/ Coro ******************************************************************/
927		1165
928	#define PRIO_MAX 3
929	#define PRIO_HIGH 1
930	#define PRIO_NORMAL 0
931	#define PRIO_LOW -1
932	#define PRIO_IDLE -3
933	#define PRIO_MIN -4
934
935	/* for Coro.pm */
936	static SV *coro_current;
937	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
938	static int coro_nready;
939
940	static void	1166	static void
941	coro_enq (SV *coro_sv)	1167	coro_enq (pTHX_ SV *coro_sv)
942	{	1168	{
943	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1169	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
944	coro_nready++;
945	}	1170	}
946		1171
947	static SV *	1172	static SV *
948	coro_deq (int min_prio)	1173	coro_deq (pTHX_ int min_prio)
949	{	1174	{
950	int prio = PRIO_MAX - PRIO_MIN;	1175	int prio = PRIO_MAX - PRIO_MIN;
951		1176
952	min_prio -= PRIO_MIN;	1177	min_prio -= PRIO_MIN;
953	if (min_prio < 0)	1178	if (min_prio < 0)
954	min_prio = 0;	1179	min_prio = 0;
955		1180
956	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1181	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
957	if (AvFILLp (coro_ready [prio]) >= 0)	1182	if (AvFILLp (coro_ready [prio]) >= 0)
958	{
959	coro_nready--;
960	return av_shift (coro_ready [prio]);	1183	return av_shift (coro_ready [prio]);
961	}
962		1184
963	return 0;	1185	return 0;
964	}	1186	}
965		1187
966	static int	1188	static int
967	api_ready (SV *coro_sv)	1189	api_ready (SV *coro_sv)
968	{	1190	{
		1191	dTHX;
969	struct coro *coro;	1192	struct coro *coro;
970		1193
971	if (SvROK (coro_sv))	1194	if (SvROK (coro_sv))
972	coro_sv = SvRV (coro_sv);	1195	coro_sv = SvRV (coro_sv);
973		1196
…		…
977	return 0;	1200	return 0;
978		1201
979	coro->flags \|= CF_READY;	1202	coro->flags \|= CF_READY;
980		1203
981	LOCK;	1204	LOCK;
982	coro_enq (SvREFCNT_inc (coro_sv));	1205	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1206	++coro_nready;
983	UNLOCK;	1207	UNLOCK;
984		1208
985	return 1;	1209	return 1;
986	}	1210	}
987		1211
988	static int	1212	static int
989	api_is_ready (SV *coro_sv)	1213	api_is_ready (SV *coro_sv)
990	{	1214	{
		1215	dTHX;
991	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1216	return !!(SvSTATE (coro_sv)->flags & CF_READY);
992	}	1217	}
993		1218
994	static void	1219	static void
995	prepare_schedule (struct transfer_args *ta)	1220	prepare_schedule (pTHX_ struct transfer_args *ta)
996	{	1221	{
997	SV prev_sv, next_sv;	1222	SV prev_sv, next_sv;
998		1223
999	for (;;)	1224	for (;;)
1000	{	1225	{
1001	LOCK;	1226	LOCK;
1002	next_sv = coro_deq (PRIO_MIN);	1227	next_sv = coro_deq (aTHX_ PRIO_MIN);
1003	UNLOCK;
1004		1228
1005	/* nothing to schedule: call the idle handler */	1229	/* nothing to schedule: call the idle handler */
1006	if (!next_sv)	1230	if (!next_sv)
1007	{	1231	{
1008	dSP;	1232	dSP;
		1233	UNLOCK;
1009		1234
1010	ENTER;	1235	ENTER;
1011	SAVETMPS;	1236	SAVETMPS;
1012		1237
1013	PUSHMARK (SP);	1238	PUSHMARK (SP);
…		…
1022	ta->next = SvSTATE (next_sv);	1247	ta->next = SvSTATE (next_sv);
1023		1248
1024	/* cannot transfer to destroyed coros, skip and look for next */	1249	/* cannot transfer to destroyed coros, skip and look for next */
1025	if (ta->next->flags & CF_DESTROYED)	1250	if (ta->next->flags & CF_DESTROYED)
1026	{	1251	{
		1252	UNLOCK;
1027	SvREFCNT_dec (next_sv);	1253	SvREFCNT_dec (next_sv);
		1254	/* coro_nready is already taken care of by destroy */
1028	continue;	1255	continue;
1029	}	1256	}
1030		1257
		1258	--coro_nready;
		1259	UNLOCK;
1031	break;	1260	break;
1032	}	1261	}
1033		1262
1034	/* free this only after the transfer */	1263	/* free this only after the transfer */
1035	prev_sv = SvRV (coro_current);	1264	prev_sv = SvRV (coro_current);
1036	SvRV_set (coro_current, next_sv);
1037	ta->prev = SvSTATE (prev_sv);	1265	ta->prev = SvSTATE (prev_sv);
1038		1266	TRANSFER_CHECK (*ta);
1039	assert (ta->next->flags & CF_READY);	1267	assert (ta->next->flags & CF_READY);
1040	ta->next->flags &= ~CF_READY;	1268	ta->next->flags &= ~CF_READY;
		1269	SvRV_set (coro_current, next_sv);
1041		1270
1042	LOCK;	1271	LOCK;
1043	free_coro_mortal ();	1272	free_coro_mortal (aTHX);
1044	coro_mortal = prev_sv;	1273	coro_mortal = prev_sv;
1045	UNLOCK;	1274	UNLOCK;
1046	}	1275	}
1047		1276
1048	static void	1277	static void
1049	prepare_cede (struct transfer_args *ta)	1278	prepare_cede (pTHX_ struct transfer_args *ta)
1050	{	1279	{
1051	api_ready (coro_current);	1280	api_ready (coro_current);
1052	prepare_schedule (ta);	1281	prepare_schedule (aTHX_ ta);
1053	}	1282	}
1054		1283
1055	static int	1284	static int
1056	prepare_cede_notself (struct transfer_args *ta)	1285	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1057	{	1286	{
1058	if (coro_nready)	1287	if (coro_nready)
1059	{	1288	{
1060	SV *prev = SvRV (coro_current);	1289	SV *prev = SvRV (coro_current);
1061	prepare_schedule (ta);	1290	prepare_schedule (aTHX_ ta);
1062	api_ready (prev);	1291	api_ready (prev);
1063	return 1;	1292	return 1;
1064	}	1293	}
1065	else	1294	else
1066	return 0;	1295	return 0;
1067	}	1296	}
1068		1297
1069	static void	1298	static void
1070	api_schedule (void)	1299	api_schedule (void)
1071	{	1300	{
		1301	dTHX;
1072	struct transfer_args ta;	1302	struct transfer_args ta;
1073		1303
1074	prepare_schedule (&ta);	1304	prepare_schedule (aTHX_ &ta);
1075	TRANSFER (ta);	1305	TRANSFER (ta);
1076	}	1306	}
1077		1307
1078	static int	1308	static int
1079	api_cede (void)	1309	api_cede (void)
1080	{	1310	{
		1311	dTHX;
1081	struct transfer_args ta;	1312	struct transfer_args ta;
1082		1313
1083	prepare_cede (&ta);	1314	prepare_cede (aTHX_ &ta);
1084		1315
1085	if (ta.prev != ta.next)	1316	if (ta.prev != ta.next)
1086	{	1317	{
1087	TRANSFER (ta);	1318	TRANSFER (ta);
1088	return 1;	1319	return 1;
…		…
1092	}	1323	}
1093		1324
1094	static int	1325	static int
1095	api_cede_notself (void)	1326	api_cede_notself (void)
1096	{	1327	{
		1328	dTHX;
1097	struct transfer_args ta;	1329	struct transfer_args ta;
1098		1330
1099	if (prepare_cede_notself (&ta))	1331	if (prepare_cede_notself (aTHX_ &ta))
1100	{	1332	{
1101	TRANSFER (ta);	1333	TRANSFER (ta);
1102	return 1;	1334	return 1;
1103	}	1335	}
1104	else	1336	else
…		…
1115	MUTEX_INIT (&coro_mutex);	1347	MUTEX_INIT (&coro_mutex);
1116	#endif	1348	#endif
1117	BOOT_PAGESIZE;	1349	BOOT_PAGESIZE;
1118		1350
1119	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1351	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1352
		1353	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1354	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1355	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1356	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1120		1357
1121	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1358	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1122	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1359	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1123	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1360	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1124	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1361	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1362	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1363	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1125	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1364	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1126		1365
1127	main_mainstack = PL_mainstack;	1366	main_mainstack = PL_mainstack;
		1367	main_top_env = PL_top_env;
		1368
		1369	while (main_top_env->je_prev)
		1370	main_top_env = main_top_env->je_prev;
1128		1371
1129	coroapi.ver = CORO_API_VERSION;	1372	coroapi.ver = CORO_API_VERSION;
1130	coroapi.transfer = api_transfer;	1373	coroapi.transfer = api_transfer;
1131		1374
1132	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1375	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1140	HV *hv;	1383	HV *hv;
1141	int i;	1384	int i;
1142		1385
1143	Newz (0, coro, 1, struct coro);	1386	Newz (0, coro, 1, struct coro);
1144	coro->args = newAV ();	1387	coro->args = newAV ();
1145	coro->save = CORO_SAVE_ALL;	1388	coro->save = CORO_SAVE_DEF;
1146	coro->flags = CF_NEW;	1389	coro->flags = CF_NEW;
1147		1390
		1391	if (coro_first) coro_first->prev = coro;
		1392	coro->next = coro_first;
		1393	coro_first = coro;
		1394
1148	hv = newHV ();	1395	coro->hv = hv = newHV ();
1149	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1396	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1150	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1397	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1151		1398
1152	for (i = 1; i < items; i++)	1399	for (i = 1; i < items; i++)
1153	av_push (coro->args, newSVsv (ST (i)));	1400	av_push (coro->args, newSVsv (ST (i)));
…		…
1157		1404
1158	int	1405	int
1159	save (SV *coro, int new_save = -1)	1406	save (SV *coro, int new_save = -1)
1160	CODE:	1407	CODE:
1161	RETVAL = api_save (coro, new_save);	1408	RETVAL = api_save (coro, new_save);
		1409	OUTPUT:
		1410	RETVAL
		1411
		1412	int
		1413	save_also (SV *coro_sv, int save_also)
		1414	CODE:
		1415	{
		1416	struct coro *coro = SvSTATE (coro_sv);
		1417	RETVAL = coro->save;
		1418	coro->save \|= save_also;
		1419	}
1162	OUTPUT:	1420	OUTPUT:
1163	RETVAL	1421	RETVAL
1164		1422
1165	void	1423	void
1166	_set_stacklevel (...)	1424	_set_stacklevel (...)
…		…
1182		1440
1183	case 1:	1441	case 1:
1184	if (items != 2)	1442	if (items != 2)
1185	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1443	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1186		1444
1187	prepare_transfer (&ta, ST (0), ST (1));	1445	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1188	break;	1446	break;
1189		1447
1190	case 2:	1448	case 2:
1191	prepare_schedule (&ta);	1449	prepare_schedule (aTHX_ &ta);
1192	break;	1450	break;
1193		1451
1194	case 3:	1452	case 3:
1195	prepare_cede (&ta);	1453	prepare_cede (aTHX_ &ta);
1196	break;	1454	break;
1197		1455
1198	case 4:	1456	case 4:
1199	if (!prepare_cede_notself (&ta))	1457	if (!prepare_cede_notself (aTHX_ &ta))
1200	XSRETURN_EMPTY;	1458	XSRETURN_EMPTY;
1201		1459
1202	break;	1460	break;
1203	}	1461	}
1204		1462
1205	BARRIER;	1463	BARRIER;
1206	TRANSFER (ta);	1464	TRANSFER (ta);
		1465
		1466	if (GIMME_V != G_VOID && ta.next != ta.prev)
		1467	XSRETURN_YES;
1207	}	1468	}
1208		1469
1209	bool	1470	bool
1210	_destroy (SV *coro_sv)	1471	_destroy (SV *coro_sv)
1211	CODE:	1472	CODE:
1212	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1473	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1213	OUTPUT:	1474	OUTPUT:
1214	RETVAL	1475	RETVAL
1215		1476
1216	void	1477	void
1217	_exit (code)	1478	_exit (code)
…		…
1219	PROTOTYPE: $	1480	PROTOTYPE: $
1220	CODE:	1481	CODE:
1221	_exit (code);	1482	_exit (code);
1222		1483
1223	int	1484	int
		1485	cctx_stacksize (int new_stacksize = 0)
		1486	CODE:
		1487	RETVAL = coro_stacksize;
		1488	if (new_stacksize)
		1489	coro_stacksize = new_stacksize;
		1490	OUTPUT:
		1491	RETVAL
		1492
		1493	int
1224	cctx_count ()	1494	cctx_count ()
1225	CODE:	1495	CODE:
1226	RETVAL = cctx_count;	1496	RETVAL = cctx_count;
1227	OUTPUT:	1497	OUTPUT:
1228	RETVAL	1498	RETVAL
…		…
1232	CODE:	1502	CODE:
1233	RETVAL = cctx_idle;	1503	RETVAL = cctx_idle;
1234	OUTPUT:	1504	OUTPUT:
1235	RETVAL	1505	RETVAL
1236		1506
		1507	void
		1508	list ()
		1509	PPCODE:
		1510	{
		1511	struct coro *coro;
		1512	for (coro = coro_first; coro; coro = coro->next)
		1513	if (coro->hv)
		1514	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1515	}
		1516
		1517	void
		1518	call (Coro::State coro, SV *coderef)
		1519	ALIAS:
		1520	eval = 1
		1521	CODE:
		1522	{
		1523	if (coro->mainstack)
		1524	{
		1525	struct coro temp;
		1526	Zero (&temp, 1, struct coro);
		1527	temp.save = CORO_SAVE_ALL;
		1528
		1529	if (!(coro->flags & CF_RUNNING))
		1530	{
		1531	save_perl (aTHX_ &temp);
		1532	load_perl (aTHX_ coro);
		1533	}
		1534
		1535	{
		1536	dSP;
		1537	ENTER;
		1538	SAVETMPS;
		1539	PUSHMARK (SP);
		1540	PUTBACK;
		1541	if (ix)
		1542	eval_sv (coderef, 0);
		1543	else
		1544	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1545	SPAGAIN;
		1546	FREETMPS;
		1547	LEAVE;
		1548	PUTBACK;
		1549	}
		1550
		1551	if (!(coro->flags & CF_RUNNING))
		1552	{
		1553	save_perl (aTHX_ coro);
		1554	load_perl (aTHX_ &temp);
		1555	}
		1556	}
		1557	}
		1558
		1559	SV *
		1560	is_ready (Coro::State coro)
		1561	PROTOTYPE: $
		1562	ALIAS:
		1563	is_ready = CF_READY
		1564	is_running = CF_RUNNING
		1565	is_new = CF_NEW
		1566	is_destroyed = CF_DESTROYED
		1567	CODE:
		1568	RETVAL = boolSV (coro->flags & ix);
		1569	OUTPUT:
		1570	RETVAL
		1571
		1572	void
		1573	trace (Coro::State coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1574	CODE:
		1575	if (flags & CC_TRACE)
		1576	{
		1577	if (!coro->cctx)
		1578	coro->cctx = cctx_new ();
		1579	else if (!(coro->cctx->flags & CC_TRACE))
		1580	croak ("cannot enable tracing on coroutine with custom stack");
		1581
		1582	coro->cctx->flags \|= flags & (CC_TRACE \| CC_TRACE_ALL);
		1583	}
		1584	else
		1585	if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1586	{
		1587	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1588	coro->cctx->flags \|= CC_NOREUSE;
		1589
		1590	if (coro->flags & CF_RUNNING)
		1591	PL_runops = RUNOPS_DEFAULT;
		1592	else
		1593	coro->runops = RUNOPS_DEFAULT;
		1594	}
		1595
		1596	SV *
		1597	has_stack (Coro::State coro)
		1598	PROTOTYPE: $
		1599	CODE:
		1600	RETVAL = boolSV (!!coro->cctx);
		1601	OUTPUT:
		1602	RETVAL
		1603
		1604	int
		1605	is_traced (Coro::State coro)
		1606	PROTOTYPE: $
		1607	CODE:
		1608	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1609	OUTPUT:
		1610	RETVAL
		1611
		1612	IV
		1613	rss (Coro::State coro)
		1614	PROTOTYPE: $
		1615	CODE:
		1616	RETVAL = coro_rss (coro);
		1617	OUTPUT:
		1618	RETVAL
		1619
		1620
1237	MODULE = Coro::State PACKAGE = Coro	1621	MODULE = Coro::State PACKAGE = Coro
1238		1622
1239	BOOT:	1623	BOOT:
1240	{	1624	{
1241	int i;	1625	int i;
		1626
		1627	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1628	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1629	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1630
		1631	coro_current = get_sv ("Coro::current", FALSE);
		1632	SvREADONLY_on (coro_current);
1242		1633
1243	coro_stash = gv_stashpv ("Coro", TRUE);	1634	coro_stash = gv_stashpv ("Coro", TRUE);
1244		1635
1245	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1636	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1246	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1637	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1247	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1638	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1248	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1639	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1249	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1640	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1250	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1641	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1251
1252	coro_current = get_sv ("Coro::current", FALSE);
1253	SvREADONLY_on (coro_current);
1254		1642
1255	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1643	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1256	coro_ready[i] = newAV ();	1644	coro_ready[i] = newAV ();
1257		1645
1258	{	1646	{
…		…
1308	CODE:	1696	CODE:
1309	RETVAL = boolSV (api_ready (self));	1697	RETVAL = boolSV (api_ready (self));
1310	OUTPUT:	1698	OUTPUT:
1311	RETVAL	1699	RETVAL
1312		1700
1313	SV *
1314	is_ready (SV *self)
1315	PROTOTYPE: $
1316	CODE:
1317	RETVAL = boolSV (api_is_ready (self));
1318	OUTPUT:
1319	RETVAL
1320
1321	int	1701	int
1322	nready (...)	1702	nready (...)
1323	PROTOTYPE:	1703	PROTOTYPE:
1324	CODE:	1704	CODE:
1325	RETVAL = coro_nready;	1705	RETVAL = coro_nready;
1326	OUTPUT:	1706	OUTPUT:
1327	RETVAL	1707	RETVAL
1328		1708
		1709	# for async_pool speedup
		1710	void
		1711	_pool_1 (SV *cb)
		1712	CODE:
		1713	{
		1714	int i, len;
		1715	HV hv = (HV )SvRV (coro_current);
		1716	AV *defav = GvAV (PL_defgv);
		1717	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1718	AV *invoke_av;
		1719
		1720	if (!invoke)
		1721	croak ("\3terminate\2\n");
		1722
		1723	hv_store (hv, "desc", sizeof ("desc") - 1,
		1724	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1725
		1726	invoke_av = (AV *)SvRV (invoke);
		1727	len = av_len (invoke_av);
		1728
		1729	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1730
		1731	if (len > 0)
		1732	{
		1733	av_fill (defav, len - 1);
		1734	for (i = 0; i < len; ++i)
		1735	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1736	}
		1737
		1738	SvREFCNT_dec (invoke);
		1739	}
		1740
		1741	void
		1742	_pool_2 (SV *cb)
		1743	CODE:
		1744	{
		1745	struct coro *coro = SvSTATE (coro_current);
		1746
		1747	sv_setsv (cb, &PL_sv_undef);
		1748
		1749	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1750	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1751	croak ("\3terminate\2\n");
		1752
		1753	av_clear (GvAV (PL_defgv));
		1754	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1755	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1756	coro->save = CORO_SAVE_DEF;
		1757	coro->prio = 0;
		1758	av_push (av_async_pool, newSVsv (coro_current));
		1759	}
		1760
		1761
1329	MODULE = Coro::State PACKAGE = Coro::AIO	1762	MODULE = Coro::State PACKAGE = Coro::AIO
1330		1763
1331	SV *	1764	SV *
1332	_get_state ()	1765	_get_state ()
1333	CODE:	1766	CODE:

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs. Revision 1.170 by root, Thu Sep 27 20:14:49 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.170 by root, Thu Sep 27 20:14:49 2007 UTC