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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.138 by root, Sun Jan 14 20:49:45 2007 UTC vs.
Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# include <valgrind/valgrind.h>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
70	/* 5.8.7 */	75	/* 5.8.7 */
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84	#ifndef newSV
		85	# define newSV(l) NEWSV(0,l)
		86	#endif
		87
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	89	# undef CORO_STACKGUARD
77	#endif	90	#endif
78		91
79	#ifndef STACKGUARD	92	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	93	# define CORO_STACKGUARD 0
81	#endif	94	#endif
82		95
83	/* prefer perl internal functions over our own? */	96	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	97	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	98	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	99	#endif
87		100
88	/* The next macro should declare a variable stacklevel that contains and approximation	101	/* 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	102	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	103	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	104	#define STACKLEVEL ((void *)&stacklevel)
93		105
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		107
96	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
…		…
121	I32 laststype;	133	I32 laststype;
122	int laststatval;	134	int laststatval;
123	Stat_t statcache;	135	Stat_t statcache;
124	};	136	};
125		137
		138	static size_t coro_stacksize = CORO_STACKSIZE;
126	static struct CoroAPI coroapi;	139	static struct CoroAPI coroapi;
127	static AV main_mainstack; / used to differentiate between $main and others */	140	static AV main_mainstack; / used to differentiate between $main and others */
		141	static JMPENV *main_top_env;
128	static HV coro_state_stash, coro_stash;	142	static HV coro_state_stash, coro_stash;
129	static SV coro_mortal; / will be freed after next transfer */	143	static SV coro_mortal; / will be freed after next transfer */
130		144
		145	static GV irsgv; / $/ */
		146	static GV stdoutgv; / STDOUT /
		147
		148	/* async_pool helper stuff */
		149	static SV *sv_pool_rss;
		150	static SV *sv_pool_size;
		151	static AV *av_async_pool;
		152
131	static struct coro_cctx *cctx_first;	153	static struct coro_cctx *cctx_first;
132	static int cctx_count, cctx_idle;	154	static int cctx_count, cctx_idle;
		155
		156	enum {
		157	CC_MAPPED = 0x01,
		158	CC_NOREUSE = 0x02, /* throw this away after tracing */
		159	CC_TRACE = 0x04,
		160	CC_TRACE_SUB = 0x08, /* trace sub calls */
		161	CC_TRACE_LINE = 0x10, /* trace each statement */
		162	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		163	};
133		164
134	/* this is a structure representing a c-level coroutine */	165	/* this is a structure representing a c-level coroutine */
135	typedef struct coro_cctx {	166	typedef struct coro_cctx {
136	struct coro_cctx *next;	167	struct coro_cctx *next;
137		168
138	/* the stack */	169	/* the stack */
139	void *sptr;	170	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	171	size_t ssize;
141		172
142	/* cpu state */	173	/* cpu state */
143	void idle_sp; / sp of top-level transfer/schedule/cede call */	174	void idle_sp; / sp of top-level transfer/schedule/cede call */
144	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	175	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
145	JMPENV *top_env;	176	JMPENV *top_env;
146	coro_context cctx;	177	coro_context cctx;
147		178
148	int inuse;
149
150	#if USE_VALGRIND	179	#if CORO_USE_VALGRIND
151	int valgrind_id;	180	int valgrind_id;
152	#endif	181	#endif
		182	unsigned char flags;
153	} coro_cctx;	183	} coro_cctx;
154		184
155	enum {	185	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	186	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	187	CF_READY = 0x0002, /* coroutine is ready */
…		…
165	coro_cctx *cctx;	195	coro_cctx *cctx;
166		196
167	/* data associated with this coroutine (initial args) */	197	/* data associated with this coroutine (initial args) */
168	AV *args;	198	AV *args;
169	int refcnt;	199	int refcnt;
170	int save; /* CORO_SAVE flags */
171	int flags; /* CF_ flags */	200	int flags; /* CF_ flags */
172		201
173	/* optionally saved, might be zero */	202	/* optionally saved, might be zero */
174	AV defav; / @_ */	203	AV defav; / @_ */
175	SV defsv; / $_ */	204	SV defsv; / $_ */
176	SV errsv; / $@ */	205	SV errsv; / $@ */
		206	SV deffh; / default filehandle */
177	SV irssv; / $/ */	207	SV irssv; / $/ */
178	SV irssv_sv; / real $/ cache */	208	SV irssv_sv; / real $/ cache */
179		209
180	#define VAR(name,type) type name;	210	#define VAR(name,type) type name;
181	# include "state.h"	211	# include "state.h"
182	#undef VAR	212	#undef VAR
183		213
		214	/* statistics */
		215	int usecount; /* number of transfers to this coro */
		216
184	/* coro process data */	217	/* coro process data */
185	int prio;	218	int prio;
		219	//SV *throw;
		220
		221	/* async_pool */
		222	SV *saved_deffh;
		223
		224	/* linked list */
		225	struct coro next, prev;
		226	HV hv; / the perl hash associated with this coro, if any */
186	};	227	};
187		228
188	typedef struct coro *Coro__State;	229	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	230	typedef struct coro *Coro__State_or_hashref;
190		231
…		…
199		240
200	/* for Coro.pm */	241	/* for Coro.pm */
201	static SV *coro_current;	242	static SV *coro_current;
202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	243	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203	static int coro_nready;	244	static int coro_nready;
		245	static struct coro *coro_first;
204		246
205	/ lowlevel stuff ********************************************************/	247	/ lowlevel stuff ********************************************************/
206		248
207	static AV *	249	static AV *
208	coro_clone_padlist (CV *cv)	250	coro_clone_padlist (pTHX_ CV *cv)
209	{	251	{
210	AV *padlist = CvPADLIST (cv);	252	AV *padlist = CvPADLIST (cv);
211	AV newpadlist, newpad;	253	AV newpadlist, newpad;
212		254
213	newpadlist = newAV ();	255	newpadlist = newAV ();
…		…
225		267
226	return newpadlist;	268	return newpadlist;
227	}	269	}
228		270
229	static void	271	static void
230	free_padlist (AV *padlist)	272	free_padlist (pTHX_ AV *padlist)
231	{	273	{
232	/* may be during global destruction */	274	/* may be during global destruction */
233	if (SvREFCNT (padlist))	275	if (SvREFCNT (padlist))
234	{	276	{
235	I32 i = AvFILLp (padlist);	277	I32 i = AvFILLp (padlist);
…		…
256	AV *padlist;	298	AV *padlist;
257	AV av = (AV )mg->mg_obj;	299	AV av = (AV )mg->mg_obj;
258		300
259	/* casting is fun. */	301	/* casting is fun. */
260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	302	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
261	free_padlist (padlist);	303	free_padlist (aTHX_ padlist);
262		304
263	SvREFCNT_dec (av);	305	SvREFCNT_dec (av);
264		306
265	return 0;	307	return 0;
266	}	308	}
…		…
274	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	316	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
275	? SvMAGIC (cv) \	317	? SvMAGIC (cv) \
276	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	318	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
277	: 0	319	: 0
278		320
		321	static struct coro *
		322	SvSTATE_ (pTHX_ SV *coro)
		323	{
		324	HV *stash;
		325	MAGIC *mg;
		326
		327	if (SvROK (coro))
		328	coro = SvRV (coro);
		329
		330	if (SvTYPE (coro) != SVt_PVHV)
		331	croak ("Coro::State object required");
		332
		333	stash = SvSTASH (coro);
		334	if (stash != coro_stash && stash != coro_state_stash)
		335	{
		336	/* very slow, but rare, check */
		337	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		338	croak ("Coro::State object required");
		339	}
		340
		341	mg = CORO_MAGIC (coro);
		342	return (struct coro *)mg->mg_ptr;
		343	}
		344
		345	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		346
279	/* the next two functions merely cache the padlists */	347	/* the next two functions merely cache the padlists */
280	static void	348	static void
281	get_padlist (CV *cv)	349	get_padlist (pTHX_ CV *cv)
282	{	350	{
283	MAGIC *mg = CORO_MAGIC (cv);	351	MAGIC *mg = CORO_MAGIC (cv);
284	AV *av;	352	AV *av;
285		353
286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	354	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	355	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288	else	356	else
289	{	357	{
290	#if PREFER_PERL_FUNCTIONS	358	#if CORO_PREFER_PERL_FUNCTIONS
291	/* this is probably cleaner, but also slower? */	359	/* this is probably cleaner, but also slower? */
292	CV *cp = Perl_cv_clone (cv);	360	CV *cp = Perl_cv_clone (cv);
293	CvPADLIST (cv) = CvPADLIST (cp);	361	CvPADLIST (cv) = CvPADLIST (cp);
294	CvPADLIST (cp) = 0;	362	CvPADLIST (cp) = 0;
295	SvREFCNT_dec (cp);	363	SvREFCNT_dec (cp);
296	#else	364	#else
297	CvPADLIST (cv) = coro_clone_padlist (cv);	365	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298	#endif	366	#endif
299	}	367	}
300	}	368	}
301		369
302	static void	370	static void
303	put_padlist (CV *cv)	371	put_padlist (pTHX_ CV *cv)
304	{	372	{
305	MAGIC *mg = CORO_MAGIC (cv);	373	MAGIC *mg = CORO_MAGIC (cv);
306	AV *av;	374	AV *av;
307		375
308	if (!mg)	376	if (!mg)
…		…
321	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	389	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
322	}	390	}
323		391
324	/ load & save, init *****************************************************/	392	/ load & save, init *****************************************************/
325		393
326	#define SB do {
327	#define SE } while (0)
328
329	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
330
331	static void	394	static void
332	load_perl (Coro__State c)	395	load_perl (pTHX_ Coro__State c)
333	{	396	{
334	#define VAR(name,type) PL_ ## name = c->name;	397	#define VAR(name,type) PL_ ## name = c->name;
335	# include "state.h"	398	# include "state.h"
336	#undef VAR	399	#undef VAR
337		400
338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	401	GvSV (PL_defgv) = c->defsv;
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	402	GvAV (PL_defgv) = c->defav;
340	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	403	GvSV (PL_errgv) = c->errsv;
341	if (c->irssv)	404	GvSV (irsgv) = c->irssv_sv;
342	{
343	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
344	SvREFCNT_dec (c->irssv);
345	else
346	{
347	REPLACE_SV (PL_rs, c->irssv);
348	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
349	sv_setsv (c->irssv_sv, PL_rs);
350	}
351	}
352		405
353	{	406	{
354	dSP;	407	dSP;
355	CV *cv;	408	CV *cv;
356		409
357	/* now do the ugly restore mess */	410	/* now do the ugly restore mess */
358	while ((cv = (CV *)POPs))	411	while ((cv = (CV *)POPs))
359	{	412	{
360	put_padlist (cv); /* mark this padlist as available */	413	put_padlist (aTHX_ cv); /* mark this padlist as available */
361	CvDEPTH (cv) = PTR2IV (POPs);	414	CvDEPTH (cv) = PTR2IV (POPs);
362	CvPADLIST (cv) = (AV *)POPs;	415	CvPADLIST (cv) = (AV *)POPs;
363	}	416	}
364		417
365	PUTBACK;	418	PUTBACK;
366	}	419	}
367	}	420	}
368		421
369	static void	422	static void
370	save_perl (Coro__State c)	423	save_perl (pTHX_ Coro__State c)
371	{	424	{
372	{	425	{
373	dSP;	426	dSP;
374	I32 cxix = cxstack_ix;	427	I32 cxix = cxstack_ix;
375	PERL_CONTEXT *ccstk = cxstack;	428	PERL_CONTEXT *ccstk = cxstack;
…		…
378	/*	431	/*
379	* 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
380	* (and reinitialize) all cv's in the whole callchain :(	433	* (and reinitialize) all cv's in the whole callchain :(
381	*/	434	*/
382		435
383	EXTEND (SP, 3 + 1);
384	PUSHs (Nullsv);	436	XPUSHs (Nullsv);
385	/* this loop was inspired by pp_caller */	437	/* this loop was inspired by pp_caller */
386	for (;;)	438	for (;;)
387	{	439	{
388	while (cxix >= 0)	440	while (cxix >= 0)
389	{	441	{
390	PERL_CONTEXT *cx = &ccstk[cxix--];	442	PERL_CONTEXT *cx = &ccstk[cxix--];
391		443
392	if (CxTYPE (cx) == CXt_SUB)	444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
393	{	445	{
394	CV *cv = cx->blk_sub.cv;	446	CV *cv = cx->blk_sub.cv;
395		447
396	if (CvDEPTH (cv))	448	if (CvDEPTH (cv))
397	{	449	{
…		…
399	PUSHs ((SV *)CvPADLIST (cv));	451	PUSHs ((SV *)CvPADLIST (cv));
400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401	PUSHs ((SV *)cv);	453	PUSHs ((SV *)cv);
402		454
403	CvDEPTH (cv) = 0;	455	CvDEPTH (cv) = 0;
404	get_padlist (cv);	456	get_padlist (aTHX_ cv);
405	}	457	}
406	}	458	}
407	}	459	}
408		460
409	if (top_si->si_type == PERLSI_MAIN)	461	if (top_si->si_type == PERLSI_MAIN)
410	break;	462	break;
411		463
412	top_si = top_si->si_prev;	464	top_si = top_si->si_prev;
413	ccstk = top_si->si_cxstack;	465	ccstk = top_si->si_cxstack;
414	cxix = top_si->si_cxix;	466	cxix = top_si->si_cxix;
415	}	467	}
416		468
417	PUTBACK;	469	PUTBACK;
418	}	470	}
419		471
420	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	472	c->defav = GvAV (PL_defgv);
421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	473	c->defsv = DEFSV;
422	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	474	c->errsv = ERRSV;
423	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	475	c->irssv_sv = GvSV (irsgv);
424		476
425	#define VAR(name,type)c->name = PL_ ## name;	477	#define VAR(name,type)c->name = PL_ ## name;
426	# include "state.h"	478	# include "state.h"
427	#undef VAR	479	#undef VAR
428	}	480	}
…		…
431	* allocate various perl stacks. This is an exact copy	483	* allocate various perl stacks. This is an exact copy
432	* of perl.c:init_stacks, except that it uses less memory	484	* of perl.c:init_stacks, except that it uses less memory
433	* on the (sometimes correct) assumption that coroutines do	485	* on the (sometimes correct) assumption that coroutines do
434	* not usually need a lot of stackspace.	486	* not usually need a lot of stackspace.
435	*/	487	*/
436	#if PREFER_PERL_FUNCTIONS	488	#if CORO_PREFER_PERL_FUNCTIONS
437	# define coro_init_stacks init_stacks	489	# define coro_init_stacks init_stacks
438	#else	490	#else
439	static void	491	static void
440	coro_init_stacks ()	492	coro_init_stacks (pTHX)
441	{	493	{
442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	494	PL_curstackinfo = new_stackinfo(64, 6);
443	PL_curstackinfo->si_type = PERLSI_MAIN;	495	PL_curstackinfo->si_type = PERLSI_MAIN;
444	PL_curstack = PL_curstackinfo->si_stack;	496	PL_curstack = PL_curstackinfo->si_stack;
445	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	497	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446		498
447	PL_stack_base = AvARRAY(PL_curstack);	499	PL_stack_base = AvARRAY(PL_curstack);
448	PL_stack_sp = PL_stack_base;	500	PL_stack_sp = PL_stack_base;
449	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	501	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450		502
451	New(50,PL_tmps_stack,128,SV*);	503	New(50,PL_tmps_stack,64,SV*);
452	PL_tmps_floor = -1;	504	PL_tmps_floor = -1;
453	PL_tmps_ix = -1;	505	PL_tmps_ix = -1;
454	PL_tmps_max = 128;	506	PL_tmps_max = 64;
455		507
456	New(54,PL_markstack,32,I32);	508	New(54,PL_markstack,16,I32);
457	PL_markstack_ptr = PL_markstack;	509	PL_markstack_ptr = PL_markstack;
458	PL_markstack_max = PL_markstack + 32;	510	PL_markstack_max = PL_markstack + 16;
459		511
460	#ifdef SET_MARK_OFFSET	512	#ifdef SET_MARK_OFFSET
461	SET_MARK_OFFSET;	513	SET_MARK_OFFSET;
462	#endif	514	#endif
463		515
464	New(54,PL_scopestack,32,I32);	516	New(54,PL_scopestack,16,I32);
465	PL_scopestack_ix = 0;	517	PL_scopestack_ix = 0;
466	PL_scopestack_max = 32;	518	PL_scopestack_max = 16;
467		519
468	New(54,PL_savestack,64,ANY);	520	New(54,PL_savestack,64,ANY);
469	PL_savestack_ix = 0;	521	PL_savestack_ix = 0;
470	PL_savestack_max = 64;	522	PL_savestack_max = 64;
471		523
472	#if !PERL_VERSION_ATLEAST (5,9,0)	524	#if !PERL_VERSION_ATLEAST (5,9,0)
473	New(54,PL_retstack,16,OP*);	525	New(54,PL_retstack,4,OP*);
474	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
475	PL_retstack_max = 16;	527	PL_retstack_max = 4;
476	#endif	528	#endif
477	}	529	}
478	#endif	530	#endif
479		531
480	/*	532	/*
481	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
482	*/	534	*/
483	static void	535	static void
484	coro_destroy_stacks ()	536	coro_destroy_stacks (pTHX)
485	{	537	{
486	if (!IN_DESTRUCT)
487	{
488	/* restore all saved variables and stuff */
489	LEAVE_SCOPE (0);
490	assert (PL_tmps_floor == -1);
491
492	/* free all temporaries */
493	FREETMPS;
494	assert (PL_tmps_ix == -1);
495
496	/* unwind all extra stacks */
497	POPSTACK_TO (PL_mainstack);
498
499	/* unwind main stack */
500	dounwind (-1);
501	}
502
503	while (PL_curstackinfo->si_next)	538	while (PL_curstackinfo->si_next)
504	PL_curstackinfo = PL_curstackinfo->si_next;	539	PL_curstackinfo = PL_curstackinfo->si_next;
505		540
506	while (PL_curstackinfo)	541	while (PL_curstackinfo)
507	{	542	{
…		…
522	#if !PERL_VERSION_ATLEAST (5,9,0)	557	#if !PERL_VERSION_ATLEAST (5,9,0)
523	Safefree (PL_retstack);	558	Safefree (PL_retstack);
524	#endif	559	#endif
525	}	560	}
526		561
		562	static size_t
		563	coro_rss (pTHX_ struct coro *coro)
		564	{
		565	size_t rss = sizeof (*coro);
		566
		567	if (coro->mainstack)
		568	{
		569	if (coro->flags & CF_RUNNING)
		570	{
		571	#define VAR(name,type)coro->name = PL_ ## name;
		572	# include "state.h"
		573	#undef VAR
		574	}
		575
		576	rss += sizeof (coro->curstackinfo);
		577	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		578	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		579	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		580	rss += coro->tmps_max * sizeof (SV *);
		581	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		582	rss += coro->scopestack_max * sizeof (I32);
		583	rss += coro->savestack_max * sizeof (ANY);
		584
		585	#if !PERL_VERSION_ATLEAST (5,9,0)
		586	rss += coro->retstack_max * sizeof (OP *);
		587	#endif
		588	}
		589
		590	return rss;
		591	}
		592
527	/ coroutine stack handling **********************************************/	593	/ coroutine stack handling **********************************************/
528		594
529	static void	595	static void
530	setup_coro (struct coro *coro)	596	coro_setup (pTHX_ struct coro *coro)
531	{	597	{
532	/*	598	/*
533	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
534	*/	600	*/
535
536	coro_init_stacks ();	601	coro_init_stacks (aTHX);
537		602
		603	PL_runops = RUNOPS_DEFAULT;
538	PL_curcop = &PL_compiling;	604	PL_curcop = &PL_compiling;
539	PL_in_eval = EVAL_NULL;	605	PL_in_eval = EVAL_NULL;
		606	PL_comppad = 0;
540	PL_curpm = 0;	607	PL_curpm = 0;
541	PL_localizing = 0;	608	PL_localizing = 0;
542	PL_dirty = 0;	609	PL_dirty = 0;
543	PL_restartop = 0;	610	PL_restartop = 0;
		611
		612	GvSV (PL_defgv) = newSV (0);
		613	GvAV (PL_defgv) = coro->args; coro->args = 0;
		614	GvSV (PL_errgv) = newSV (0);
		615	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		616	PL_rs = newSVsv (GvSV (irsgv));
		617	PL_defoutgv = SvREFCNT_inc (stdoutgv);
		618
		619	ENTER; /* necessary e.g. for dounwind */
544		620
545	{	621	{
546	dSP;	622	dSP;
547	LOGOP myop;	623	LOGOP myop;
548		624
549	SvREFCNT_dec (GvAV (PL_defgv));
550	GvAV (PL_defgv) = coro->args; coro->args = 0;
551
552	Zero (&myop, 1, LOGOP);	625	Zero (&myop, 1, LOGOP);
553	myop.op_next = Nullop;	626	myop.op_next = Nullop;
554	myop.op_flags = OPf_WANT_VOID;	627	myop.op_flags = OPf_WANT_VOID;
555		628
556	PUSHMARK (SP);	629	PUSHMARK (SP);
557	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	630	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
558	PUTBACK;	631	PUTBACK;
559	PL_op = (OP *)&myop;	632	PL_op = (OP *)&myop;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	633	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	634	SPAGAIN;
562	}	635	}
563
564	ENTER; /* necessary e.g. for dounwind */
565	}	636	}
566		637
567	static void	638	static void
		639	coro_destroy (pTHX_ struct coro *coro)
		640	{
		641	if (!IN_DESTRUCT)
		642	{
		643	/* restore all saved variables and stuff */
		644	LEAVE_SCOPE (0);
		645	assert (PL_tmps_floor == -1);
		646
		647	/* free all temporaries */
		648	FREETMPS;
		649	assert (PL_tmps_ix == -1);
		650
		651	/* unwind all extra stacks */
		652	POPSTACK_TO (PL_mainstack);
		653
		654	/* unwind main stack */
		655	dounwind (-1);
		656	}
		657
		658	SvREFCNT_dec (GvSV (PL_defgv));
		659	SvREFCNT_dec (GvAV (PL_defgv));
		660	SvREFCNT_dec (GvSV (PL_errgv));
		661	SvREFCNT_dec (PL_defoutgv);
		662	SvREFCNT_dec (PL_rs);
		663	SvREFCNT_dec (GvSV (irsgv));
		664
		665	SvREFCNT_dec (coro->saved_deffh);
		666	//SvREFCNT_dec (coro->throw);
		667
		668	coro_destroy_stacks (aTHX);
		669	}
		670
		671	static void
568	free_coro_mortal ()	672	free_coro_mortal (pTHX)
569	{	673	{
570	if (coro_mortal)	674	if (coro_mortal)
571	{	675	{
572	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
573	coro_mortal = 0;	677	coro_mortal = 0;
574	}	678	}
575	}	679	}
576		680
		681	static int
		682	runops_trace (pTHX)
		683	{
		684	COP *oldcop = 0;
		685	int oldcxix = -2;
		686	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		687	coro_cctx *cctx = coro->cctx;
		688
		689	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		690	{
		691	PERL_ASYNC_CHECK ();
		692
		693	if (cctx->flags & CC_TRACE_ALL)
		694	{
		695	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		696	{
		697	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		698	SV bot, top;
		699	AV av = newAV (); / return values */
		700	SV **cb;
		701	dSP;
		702
		703	GV *gv = CvGV (cx->blk_sub.cv);
		704	SV *fullname = sv_2mortal (newSV (0));
		705	if (isGV (gv))
		706	gv_efullname3 (fullname, gv, 0);
		707
		708	bot = PL_stack_base + cx->blk_oldsp + 1;
		709	top = cx->blk_gimme == G_ARRAY ? SP + 1
		710	: cx->blk_gimme == G_SCALAR ? bot + 1
		711	: bot;
		712
		713	av_extend (av, top - bot);
		714	while (bot < top)
		715	av_push (av, SvREFCNT_inc (*bot++));
		716
		717	PL_runops = RUNOPS_DEFAULT;
		718	ENTER;
		719	SAVETMPS;
		720	EXTEND (SP, 3);
		721	PUSHMARK (SP);
		722	PUSHs (&PL_sv_no);
		723	PUSHs (fullname);
		724	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		725	PUTBACK;
		726	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		727	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		728	SPAGAIN;
		729	FREETMPS;
		730	LEAVE;
		731	PL_runops = runops_trace;
		732	}
		733
		734	if (oldcop != PL_curcop)
		735	{
		736	oldcop = PL_curcop;
		737
		738	if (PL_curcop != &PL_compiling)
		739	{
		740	SV **cb;
		741
		742	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		743	{
		744	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		745
		746	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		747	{
		748	runops_proc_t old_runops = PL_runops;
		749	dSP;
		750	GV *gv = CvGV (cx->blk_sub.cv);
		751	SV *fullname = sv_2mortal (newSV (0));
		752
		753	if (isGV (gv))
		754	gv_efullname3 (fullname, gv, 0);
		755
		756	PL_runops = RUNOPS_DEFAULT;
		757	ENTER;
		758	SAVETMPS;
		759	EXTEND (SP, 3);
		760	PUSHMARK (SP);
		761	PUSHs (&PL_sv_yes);
		762	PUSHs (fullname);
		763	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		764	PUTBACK;
		765	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		766	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		767	SPAGAIN;
		768	FREETMPS;
		769	LEAVE;
		770	PL_runops = runops_trace;
		771	}
		772
		773	oldcxix = cxstack_ix;
		774	}
		775
		776	if (cctx->flags & CC_TRACE_LINE)
		777	{
		778	dSP;
		779
		780	PL_runops = RUNOPS_DEFAULT;
		781	ENTER;
		782	SAVETMPS;
		783	EXTEND (SP, 3);
		784	PL_runops = RUNOPS_DEFAULT;
		785	PUSHMARK (SP);
		786	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		787	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		788	PUTBACK;
		789	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		790	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		791	SPAGAIN;
		792	FREETMPS;
		793	LEAVE;
		794	PL_runops = runops_trace;
		795	}
		796	}
		797	}
		798	}
		799	}
		800
		801	TAINT_NOT;
		802	return 0;
		803	}
		804
577	/* inject a fake call to Coro::State::_cctx_init into the execution */	805	/* inject a fake call to Coro::State::_cctx_init into the execution */
		806	/* _cctx_init should be careful, as it could be called at almost any time */
		807	/* during execution of a perl program */
578	static void NOINLINE	808	static void NOINLINE
579	prepare_cctx (coro_cctx *cctx)	809	prepare_cctx (pTHX_ coro_cctx *cctx)
580	{	810	{
581	dSP;	811	dSP;
582	LOGOP myop;	812	LOGOP myop;
		813
		814	PL_top_env = &PL_start_env;
		815
		816	if (cctx->flags & CC_TRACE)
		817	PL_runops = runops_trace;
583		818
584	Zero (&myop, 1, LOGOP);	819	Zero (&myop, 1, LOGOP);
585	myop.op_next = PL_op;	820	myop.op_next = PL_op;
586	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	821	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
587		822
…		…
593	PL_op = (OP *)&myop;	828	PL_op = (OP *)&myop;
594	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	829	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595	SPAGAIN;	830	SPAGAIN;
596	}	831	}
597		832
		833	/*
		834	* this is a _very_ stripped down perl interpreter ;)
		835	*/
598	static void	836	static void
599	coro_run (void *arg)	837	coro_run (void *arg)
600	{	838	{
		839	dTHX;
		840
601	/* coro_run is the alternative tail of transfer(), so unlock here. */	841	/* coro_run is the alternative tail of transfer(), so unlock here. */
602	UNLOCK;	842	UNLOCK;
603		843
604	/*	844	/* we now skip the entersub that lead to transfer() */
605	* this is a _very_ stripped down perl interpreter ;)	845	PL_op = PL_op->op_next;
606	*/
607	PL_top_env = &PL_start_env;
608		846
609	/* inject call to cctx_init */	847	/* inject a fake subroutine call to cctx_init */
610	prepare_cctx ((coro_cctx *)arg);	848	prepare_cctx (aTHX_ (coro_cctx *)arg);
611		849
612	/* somebody will hit me for both perl_run and PL_restartop */	850	/* somebody or something will hit me for both perl_run and PL_restartop */
613	PL_restartop = PL_op;	851	PL_restartop = PL_op;
614	perl_run (PL_curinterp);	852	perl_run (PL_curinterp);
615		853
616	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	854	/*
617	abort ();	855	* If perl-run returns we assume exit() was being called or the coro
		856	* fell off the end, which seems to be the only valid (non-bug)
		857	* reason for perl_run to return. We try to exit by jumping to the
		858	* bootstrap-time "top" top_env, as we cannot restore the "main"
		859	* coroutine as Coro has no such concept
		860	*/
		861	PL_top_env = main_top_env;
		862	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
618	}	863	}
619		864
620	static coro_cctx *	865	static coro_cctx *
621	cctx_new ()	866	cctx_new ()
622	{	867	{
623	coro_cctx *cctx;	868	coro_cctx *cctx;
		869	void *stack_start;
		870	size_t stack_size;
624		871
625	++cctx_count;	872	++cctx_count;
626		873
627	Newz (0, cctx, 1, coro_cctx);	874	Newz (0, cctx, 1, coro_cctx);
628		875
629	#if HAVE_MMAP	876	#if HAVE_MMAP
630		877
631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	878	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632	/* mmap supposedly does allocate-on-write for us */	879	/* mmap supposedly does allocate-on-write for us */
633	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	880	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
634		881
635	if (cctx->sptr == (void *)-1)	882	if (cctx->sptr != (void *)-1)
636	{
637	perror ("FATAL: unable to mmap stack for coroutine");
638	_exit (EXIT_FAILURE);
639	}	883	{
640
641	# if STACKGUARD	884	# if CORO_STACKGUARD
642	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	885	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643	# endif	886	# endif
		887	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		888	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		889	cctx->flags \|= CC_MAPPED;
		890	}
		891	else
		892	#endif
		893	{
		894	cctx->ssize = coro_stacksize * (long)sizeof (long);
		895	New (0, cctx->sptr, coro_stacksize, long);
644		896
645	#else
646
647	cctx->ssize = STACKSIZE * (long)sizeof (long);
648	New (0, cctx->sptr, STACKSIZE, long);
649
650	if (!cctx->sptr)	897	if (!cctx->sptr)
651	{	898	{
652	perror ("FATAL: unable to malloc stack for coroutine");	899	perror ("FATAL: unable to allocate stack for coroutine");
653	_exit (EXIT_FAILURE);	900	_exit (EXIT_FAILURE);
654	}	901	}
655		902
656	#endif	903	stack_start = cctx->sptr;
		904	stack_size = cctx->ssize;
		905	}
657		906
658	#if USE_VALGRIND	907	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
659	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
660	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
661	cctx->ssize + (char *)cctx->sptr
662	);
663	#endif
664
665	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	908	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
666		909
667	return cctx;	910	return cctx;
668	}	911	}
669		912
670	static void	913	static void
…		…
673	if (!cctx)	916	if (!cctx)
674	return;	917	return;
675		918
676	--cctx_count;	919	--cctx_count;
677		920
678	#if USE_VALGRIND	921	#if CORO_USE_VALGRIND
679	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	922	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680	#endif	923	#endif
681		924
682	#if HAVE_MMAP	925	#if HAVE_MMAP
		926	if (cctx->flags & CC_MAPPED)
683	munmap (cctx->sptr, cctx->ssize);	927	munmap (cctx->sptr, cctx->ssize);
684	#else	928	else
		929	#endif
685	Safefree (cctx->sptr);	930	Safefree (cctx->sptr);
686	#endif
687		931
688	Safefree (cctx);	932	Safefree (cctx);
689	}	933	}
690		934
		935	/* wether this cctx should be destructed */
		936	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		937
691	static coro_cctx *	938	static coro_cctx *
692	cctx_get ()	939	cctx_get (pTHX)
693	{	940	{
694	coro_cctx *cctx;
695
696	if (cctx_first)	941	while (cctx_first)
697	{	942	{
698	cctx = cctx_first;	943	coro_cctx *cctx = cctx_first;
699	cctx_first = cctx->next;	944	cctx_first = cctx->next;
700	--cctx_idle;	945	--cctx_idle;
701	}	946
702	else	947	if (!CCTX_EXPIRED (cctx))
703	{	948	return cctx;
704	cctx = cctx_new ();	949
705	PL_op = PL_op->op_next;	950	cctx_destroy (cctx);
706	}	951	}
707		952
708	return cctx;	953	return cctx_new ();
709	}	954	}
710		955
711	static void	956	static void
712	cctx_put (coro_cctx *cctx)	957	cctx_put (coro_cctx *cctx)
713	{	958	{
…		…
716	{	961	{
717	coro_cctx *first = cctx_first;	962	coro_cctx *first = cctx_first;
718	cctx_first = first->next;	963	cctx_first = first->next;
719	--cctx_idle;	964	--cctx_idle;
720		965
721	assert (!first->inuse);
722	cctx_destroy (first);	966	cctx_destroy (first);
723	}	967	}
724		968
725	++cctx_idle;	969	++cctx_idle;
726	cctx->next = cctx_first;	970	cctx->next = cctx_first;
727	cctx_first = cctx;	971	cctx_first = cctx;
728	}	972	}
729		973
730	/ coroutine switching ***************************************************/	974	/ coroutine switching ***************************************************/
731		975
732	/* never call directly, always through the coro_state_transfer global variable */
733	static void NOINLINE	976	static void NOINLINE
		977	transfer_check (pTHX_ struct coro prev, struct coro next)
		978	{
		979	if (prev != next)
		980	{
		981	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		982	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		983
		984	if (next->flags & CF_RUNNING)
		985	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		986
		987	if (next->flags & CF_DESTROYED)
		988	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		989
		990	if (PL_lex_state != LEX_NOTPARSING)
		991	croak ("Coro::State::transfer called while parsing, but this is not supported");
		992	}
		993	}
		994
		995	/* always use the TRANSFER macro */
		996	static void NOINLINE
734	transfer (struct coro prev, struct coro next)	997	transfer (pTHX_ struct coro prev, struct coro next)
735	{	998	{
736	dSTACKLEVEL;	999	dSTACKLEVEL;
737		1000
738	/* sometimes transfer is only called to set idle_sp */	1001	/* sometimes transfer is only called to set idle_sp */
739	if (!next)	1002	if (!next)
…		…
747		1010
748	if (prev->flags & CF_NEW)	1011	if (prev->flags & CF_NEW)
749	{	1012	{
750	/* create a new empty context */	1013	/* create a new empty context */
751	Newz (0, prev->cctx, 1, coro_cctx);	1014	Newz (0, prev->cctx, 1, coro_cctx);
752	prev->cctx->inuse = 1;
753	prev->flags &= ~CF_NEW;	1015	prev->flags &= ~CF_NEW;
754	prev->flags \|= CF_RUNNING;	1016	prev->flags \|= CF_RUNNING;
755	}	1017	}
756
757	/TODO: must not croak here /
758	if (!prev->flags & CF_RUNNING)
759	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
760
761	if (next->flags & CF_RUNNING)
762	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
763
764	if (next->flags & CF_DESTROYED)
765	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
766		1018
767	prev->flags &= ~CF_RUNNING;	1019	prev->flags &= ~CF_RUNNING;
768	next->flags \|= CF_RUNNING;	1020	next->flags \|= CF_RUNNING;
769		1021
770	LOCK;	1022	LOCK;
…		…
772	if (next->flags & CF_NEW)	1024	if (next->flags & CF_NEW)
773	{	1025	{
774	/* need to start coroutine */	1026	/* need to start coroutine */
775	next->flags &= ~CF_NEW;	1027	next->flags &= ~CF_NEW;
776	/* first get rid of the old state */	1028	/* first get rid of the old state */
777	save_perl (prev);	1029	save_perl (aTHX_ prev);
778	/* setup coroutine call */	1030	/* setup coroutine call */
779	setup_coro (next);	1031	coro_setup (aTHX_ next);
780	/* need a new stack */
781	assert (!next->cctx);
782	}	1032	}
783	else	1033	else
784	{	1034	{
785	/* coroutine already started */	1035	/* coroutine already started */
786	save_perl (prev);	1036	save_perl (aTHX_ prev);
787	load_perl (next);	1037	load_perl (aTHX_ next);
788	}	1038	}
789		1039
790	prev__cctx = prev->cctx;	1040	prev__cctx = prev->cctx;
791		1041
792	/* possibly "free" the cctx */	1042	/* possibly "free" the cctx */
793	if (prev__cctx->idle_sp == STACKLEVEL)	1043	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
794	{	1044	{
795	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1045	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
796	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1046	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
797		1047
798	prev->cctx = 0;	1048	prev->cctx = 0;
799		1049
		1050	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1051	if (CCTX_EXPIRED (prev__cctx))
		1052	next->cctx = cctx_get (aTHX);
		1053
800	cctx_put (prev__cctx);	1054	cctx_put (prev__cctx);
801	prev__cctx->inuse = 0;
802	}	1055	}
803		1056
		1057	++next->usecount;
		1058
804	if (!next->cctx)	1059	if (!next->cctx)
805	{
806	next->cctx = cctx_get ();	1060	next->cctx = cctx_get (aTHX);
807	assert (!next->cctx->inuse);
808	next->cctx->inuse = 1;
809	}
810		1061
811	if (prev__cctx != next->cctx)	1062	if (prev__cctx != next->cctx)
812	{	1063	{
813	prev__cctx->top_env = PL_top_env;	1064	prev__cctx->top_env = PL_top_env;
814	PL_top_env = next->cctx->top_env;	1065	PL_top_env = next->cctx->top_env;
815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1066	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816	}	1067	}
817		1068
818	free_coro_mortal ();	1069	free_coro_mortal (aTHX);
819	UNLOCK;	1070	UNLOCK;
820	}	1071	}
821	}	1072	}
822		1073
823	struct transfer_args	1074	struct transfer_args
824	{	1075	{
825	struct coro prev, next;	1076	struct coro prev, next;
826	};	1077	};
827		1078
828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1079	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1080	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
829		1081
830	/ high level stuff ******************************************************/	1082	/ high level stuff ******************************************************/
831		1083
832	static int	1084	static int
833	coro_state_destroy (struct coro *coro)	1085	coro_state_destroy (pTHX_ struct coro *coro)
834	{	1086	{
835	if (coro->flags & CF_DESTROYED)	1087	if (coro->flags & CF_DESTROYED)
836	return 0;	1088	return 0;
837		1089
838	coro->flags \|= CF_DESTROYED;	1090	coro->flags \|= CF_DESTROYED;
839		1091
840	if (coro->flags & CF_READY)	1092	if (coro->flags & CF_READY)
841	{	1093	{
842	/* reduce nready, as destroying a ready coro effectively unreadies it */	1094	/* reduce nready, as destroying a ready coro effectively unreadies it */
843	/* alternative: look through all ready queues and remove it */	1095	/* alternative: look through all ready queues and remove the coro */
844	LOCK;	1096	LOCK;
845	--coro_nready;	1097	--coro_nready;
846	UNLOCK;	1098	UNLOCK;
847	}	1099	}
848	else	1100	else
849	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */	1101	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
850		1102
851	if (coro->mainstack && coro->mainstack != main_mainstack)	1103	if (coro->mainstack && coro->mainstack != main_mainstack)
852	{	1104	{
853	assert (!(coro->flags & CF_RUNNING));
854
855	struct coro temp;	1105	struct coro temp;
856	Zero (&temp, 1, struct coro);
857	temp.save = CORO_SAVE_ALL;
858		1106
859	if (coro->flags & CF_RUNNING)	1107	if (coro->flags & CF_RUNNING)
860	croak ("FATAL: tried to destroy currently running coroutine");	1108	croak ("FATAL: tried to destroy currently running coroutine");
861		1109
862	save_perl (&temp);	1110	save_perl (aTHX_ &temp);
863	load_perl (coro);	1111	load_perl (aTHX_ coro);
864		1112
865	coro_destroy_stacks ();	1113	coro_destroy (aTHX_ coro);
866		1114
867	load_perl (&temp); /* this will get rid of defsv etc.. */	1115	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
868		1116
869	coro->mainstack = 0;	1117	coro->mainstack = 0;
870	}	1118	}
871		1119
872	cctx_destroy (coro->cctx);	1120	cctx_destroy (coro->cctx);
873	SvREFCNT_dec (coro->args);	1121	SvREFCNT_dec (coro->args);
874		1122
		1123	if (coro->next) coro->next->prev = coro->prev;
		1124	if (coro->prev) coro->prev->next = coro->next;
		1125	if (coro == coro_first) coro_first = coro->next;
		1126
875	return 1;	1127	return 1;
876	}	1128	}
877		1129
878	static int	1130	static int
879	coro_state_free (pTHX_ SV sv, MAGIC mg)	1131	coro_state_free (pTHX_ SV sv, MAGIC mg)
880	{	1132	{
881	struct coro coro = (struct coro )mg->mg_ptr;	1133	struct coro coro = (struct coro )mg->mg_ptr;
882	mg->mg_ptr = 0;	1134	mg->mg_ptr = 0;
883		1135
		1136	coro->hv = 0;
		1137
884	if (--coro->refcnt < 0)	1138	if (--coro->refcnt < 0)
885	{	1139	{
886	coro_state_destroy (coro);	1140	coro_state_destroy (aTHX_ coro);
887	Safefree (coro);	1141	Safefree (coro);
888	}	1142	}
889		1143
890	return 0;	1144	return 0;
891	}	1145	}
…		…
909	#else	1163	#else
910	# define MGf_DUP 0	1164	# define MGf_DUP 0
911	#endif	1165	#endif
912	};	1166	};
913		1167
914	static struct coro *
915	SvSTATE (SV *coro)
916	{
917	HV *stash;
918	MAGIC *mg;
919
920	if (SvROK (coro))
921	coro = SvRV (coro);
922
923	stash = SvSTASH (coro);
924	if (stash != coro_stash && stash != coro_state_stash)
925	{
926	/* very slow, but rare, check */
927	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
928	croak ("Coro::State object required");
929	}
930
931	mg = SvMAGIC (coro);
932	assert (mg->mg_type == PERL_MAGIC_ext);
933	return (struct coro *)mg->mg_ptr;
934	}
935
936	static void	1168	static void
937	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1169	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
938	{	1170	{
939	ta->prev = SvSTATE (prev_sv);	1171	ta->prev = SvSTATE (prev_sv);
940	ta->next = SvSTATE (next_sv);	1172	ta->next = SvSTATE (next_sv);
		1173	TRANSFER_CHECK (*ta);
941	}	1174	}
942		1175
943	static void	1176	static void
944	api_transfer (SV prev_sv, SV next_sv)	1177	api_transfer (SV prev_sv, SV next_sv)
945	{	1178	{
		1179	dTHX;
946	struct transfer_args ta;	1180	struct transfer_args ta;
947		1181
948	prepare_transfer (&ta, prev_sv, next_sv);	1182	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
949	TRANSFER (ta);	1183	TRANSFER (ta);
950	}	1184	}
951		1185
952	static int
953	api_save (SV *coro_sv, int new_save)
954	{
955	struct coro *coro = SvSTATE (coro_sv);
956	int old_save = coro->save;
957
958	if (new_save >= 0)
959	coro->save = new_save;
960
961	return old_save;
962	}
963
964	/ Coro ******************************************************************/	1186	/ Coro ******************************************************************/
965		1187
966	static void	1188	static void
967	coro_enq (SV *coro_sv)	1189	coro_enq (pTHX_ SV *coro_sv)
968	{	1190	{
969	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1191	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
970	}	1192	}
971		1193
972	static SV *	1194	static SV *
973	coro_deq (int min_prio)	1195	coro_deq (pTHX_ int min_prio)
974	{	1196	{
975	int prio = PRIO_MAX - PRIO_MIN;	1197	int prio = PRIO_MAX - PRIO_MIN;
976		1198
977	min_prio -= PRIO_MIN;	1199	min_prio -= PRIO_MIN;
978	if (min_prio < 0)	1200	if (min_prio < 0)
…		…
986	}	1208	}
987		1209
988	static int	1210	static int
989	api_ready (SV *coro_sv)	1211	api_ready (SV *coro_sv)
990	{	1212	{
		1213	dTHX;
991	struct coro *coro;	1214	struct coro *coro;
992		1215
993	if (SvROK (coro_sv))	1216	if (SvROK (coro_sv))
994	coro_sv = SvRV (coro_sv);	1217	coro_sv = SvRV (coro_sv);
995		1218
…		…
999	return 0;	1222	return 0;
1000		1223
1001	coro->flags \|= CF_READY;	1224	coro->flags \|= CF_READY;
1002		1225
1003	LOCK;	1226	LOCK;
1004	coro_enq (SvREFCNT_inc (coro_sv));	1227	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1005	++coro_nready;	1228	++coro_nready;
1006	UNLOCK;	1229	UNLOCK;
1007		1230
1008	return 1;	1231	return 1;
1009	}	1232	}
1010		1233
1011	static int	1234	static int
1012	api_is_ready (SV *coro_sv)	1235	api_is_ready (SV *coro_sv)
1013	{	1236	{
		1237	dTHX;
1014	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1238	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1015	}	1239	}
1016		1240
1017	static void	1241	static void
1018	prepare_schedule (struct transfer_args *ta)	1242	prepare_schedule (pTHX_ struct transfer_args *ta)
1019	{	1243	{
1020	SV prev_sv, next_sv;	1244	SV prev_sv, next_sv;
1021		1245
1022	for (;;)	1246	for (;;)
1023	{	1247	{
1024	LOCK;	1248	LOCK;
1025	next_sv = coro_deq (PRIO_MIN);	1249	next_sv = coro_deq (aTHX_ PRIO_MIN);
1026		1250
1027	/* nothing to schedule: call the idle handler */	1251	/* nothing to schedule: call the idle handler */
1028	if (!next_sv)	1252	if (!next_sv)
1029	{	1253	{
		1254	dSP;
1030	UNLOCK;	1255	UNLOCK;
1031	dSP;
1032		1256
1033	ENTER;	1257	ENTER;
1034	SAVETMPS;	1258	SAVETMPS;
1035		1259
1036	PUSHMARK (SP);	1260	PUSHMARK (SP);
…		…
1058	break;	1282	break;
1059	}	1283	}
1060		1284
1061	/* free this only after the transfer */	1285	/* free this only after the transfer */
1062	prev_sv = SvRV (coro_current);	1286	prev_sv = SvRV (coro_current);
1063	SvRV_set (coro_current, next_sv);
1064	ta->prev = SvSTATE (prev_sv);	1287	ta->prev = SvSTATE (prev_sv);
1065		1288	TRANSFER_CHECK (*ta);
1066	assert (ta->next->flags & CF_READY);	1289	assert (ta->next->flags & CF_READY);
1067	ta->next->flags &= ~CF_READY;	1290	ta->next->flags &= ~CF_READY;
		1291	SvRV_set (coro_current, next_sv);
1068		1292
1069	LOCK;	1293	LOCK;
1070	free_coro_mortal ();	1294	free_coro_mortal (aTHX);
1071	coro_mortal = prev_sv;	1295	coro_mortal = prev_sv;
1072	UNLOCK;	1296	UNLOCK;
1073	}	1297	}
1074		1298
1075	static void	1299	static void
1076	prepare_cede (struct transfer_args *ta)	1300	prepare_cede (pTHX_ struct transfer_args *ta)
1077	{	1301	{
1078	api_ready (coro_current);	1302	api_ready (coro_current);
1079	prepare_schedule (ta);	1303	prepare_schedule (aTHX_ ta);
1080	}	1304	}
1081		1305
1082	static int	1306	static int
1083	prepare_cede_notself (struct transfer_args *ta)	1307	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1084	{	1308	{
1085	if (coro_nready)	1309	if (coro_nready)
1086	{	1310	{
1087	SV *prev = SvRV (coro_current);	1311	SV *prev = SvRV (coro_current);
1088	prepare_schedule (ta);	1312	prepare_schedule (aTHX_ ta);
1089	api_ready (prev);	1313	api_ready (prev);
1090	return 1;	1314	return 1;
1091	}	1315	}
1092	else	1316	else
1093	return 0;	1317	return 0;
1094	}	1318	}
1095		1319
1096	static void	1320	static void
1097	api_schedule (void)	1321	api_schedule (void)
1098	{	1322	{
		1323	dTHX;
1099	struct transfer_args ta;	1324	struct transfer_args ta;
1100		1325
1101	prepare_schedule (&ta);	1326	prepare_schedule (aTHX_ &ta);
1102	TRANSFER (ta);	1327	TRANSFER (ta);
1103	}	1328	}
1104		1329
1105	static int	1330	static int
1106	api_cede (void)	1331	api_cede (void)
1107	{	1332	{
		1333	dTHX;
1108	struct transfer_args ta;	1334	struct transfer_args ta;
1109		1335
1110	prepare_cede (&ta);	1336	prepare_cede (aTHX_ &ta);
1111		1337
1112	if (ta.prev != ta.next)	1338	if (ta.prev != ta.next)
1113	{	1339	{
1114	TRANSFER (ta);	1340	TRANSFER (ta);
1115	return 1;	1341	return 1;
…		…
1119	}	1345	}
1120		1346
1121	static int	1347	static int
1122	api_cede_notself (void)	1348	api_cede_notself (void)
1123	{	1349	{
		1350	dTHX;
1124	struct transfer_args ta;	1351	struct transfer_args ta;
1125		1352
1126	if (prepare_cede_notself (&ta))	1353	if (prepare_cede_notself (aTHX_ &ta))
1127	{	1354	{
1128	TRANSFER (ta);	1355	TRANSFER (ta);
1129	return 1;	1356	return 1;
1130	}	1357	}
1131	else	1358	else
1132	return 0;	1359	return 0;
1133	}	1360	}
1134		1361
		1362	static void
		1363	api_trace (SV *coro_sv, int flags)
		1364	{
		1365	dTHX;
		1366	struct coro *coro = SvSTATE (coro_sv);
		1367
		1368	if (flags & CC_TRACE)
		1369	{
		1370	if (!coro->cctx)
		1371	coro->cctx = cctx_new ();
		1372	else if (!(coro->cctx->flags & CC_TRACE))
		1373	croak ("cannot enable tracing on coroutine with custom stack");
		1374
		1375	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1376	}
		1377	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1378	{
		1379	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1380
		1381	if (coro->flags & CF_RUNNING)
		1382	PL_runops = RUNOPS_DEFAULT;
		1383	else
		1384	coro->runops = RUNOPS_DEFAULT;
		1385	}
		1386	}
		1387
1135	MODULE = Coro::State PACKAGE = Coro::State	1388	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1136		1389
1137	PROTOTYPES: DISABLE	1390	PROTOTYPES: DISABLE
1138		1391
1139	BOOT:	1392	BOOT:
1140	{	1393	{
1141	#ifdef USE_ITHREADS	1394	#ifdef USE_ITHREADS
1142	MUTEX_INIT (&coro_mutex);	1395	MUTEX_INIT (&coro_mutex);
1143	#endif	1396	#endif
1144	BOOT_PAGESIZE;	1397	BOOT_PAGESIZE;
1145		1398
		1399	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1400	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1401
1146	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1402	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1147		1403
		1404	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1405	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1148	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1406	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1149	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1150	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1151	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1152	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1407	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1153		1408
1154	main_mainstack = PL_mainstack;	1409	main_mainstack = PL_mainstack;
		1410	main_top_env = PL_top_env;
		1411
		1412	while (main_top_env->je_prev)
		1413	main_top_env = main_top_env->je_prev;
1155		1414
1156	coroapi.ver = CORO_API_VERSION;	1415	coroapi.ver = CORO_API_VERSION;
1157	coroapi.transfer = api_transfer;	1416	coroapi.transfer = api_transfer;
1158		1417
1159	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1418	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1166	struct coro *coro;	1425	struct coro *coro;
1167	HV *hv;	1426	HV *hv;
1168	int i;	1427	int i;
1169		1428
1170	Newz (0, coro, 1, struct coro);	1429	Newz (0, coro, 1, struct coro);
1171	coro->args = newAV ();	1430	coro->args = newAV ();
1172	coro->save = CORO_SAVE_ALL;
1173	coro->flags = CF_NEW;	1431	coro->flags = CF_NEW;
1174		1432
		1433	if (coro_first) coro_first->prev = coro;
		1434	coro->next = coro_first;
		1435	coro_first = coro;
		1436
1175	hv = newHV ();	1437	coro->hv = hv = newHV ();
1176	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1438	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1177	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1439	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1178		1440
		1441	av_extend (coro->args, items - 1);
1179	for (i = 1; i < items; i++)	1442	for (i = 1; i < items; i++)
1180	av_push (coro->args, newSVsv (ST (i)));	1443	av_push (coro->args, newSVsv (ST (i)));
1181	}	1444	}
1182	OUTPUT:	1445	OUTPUT:
1183	RETVAL	1446	RETVAL
1184		1447
1185	int	1448	# these not obviously related functions are all rolled into the same xs
1186	save (SV *coro, int new_save = -1)	1449	# function to increase chances that they all will call transfer with the same
1187	CODE:	1450	# stack offset
1188	RETVAL = api_save (coro, new_save);
1189	OUTPUT:
1190	RETVAL
1191
1192	void	1451	void
1193	_set_stacklevel (...)	1452	_set_stacklevel (...)
1194	ALIAS:	1453	ALIAS:
1195	Coro::State::transfer = 1	1454	Coro::State::transfer = 1
1196	Coro::schedule = 2	1455	Coro::schedule = 2
…		…
1209		1468
1210	case 1:	1469	case 1:
1211	if (items != 2)	1470	if (items != 2)
1212	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1471	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1213		1472
1214	prepare_transfer (&ta, ST (0), ST (1));	1473	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1215	break;	1474	break;
1216		1475
1217	case 2:	1476	case 2:
1218	prepare_schedule (&ta);	1477	prepare_schedule (aTHX_ &ta);
1219	break;	1478	break;
1220		1479
1221	case 3:	1480	case 3:
1222	prepare_cede (&ta);	1481	prepare_cede (aTHX_ &ta);
1223	break;	1482	break;
1224		1483
1225	case 4:	1484	case 4:
1226	if (!prepare_cede_notself (&ta))	1485	if (!prepare_cede_notself (aTHX_ &ta))
1227	XSRETURN_EMPTY;	1486	XSRETURN_EMPTY;
1228		1487
1229	break;	1488	break;
1230	}	1489	}
1231		1490
…		…
1237	}	1496	}
1238		1497
1239	bool	1498	bool
1240	_destroy (SV *coro_sv)	1499	_destroy (SV *coro_sv)
1241	CODE:	1500	CODE:
1242	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1501	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1243	OUTPUT:	1502	OUTPUT:
1244	RETVAL	1503	RETVAL
1245		1504
1246	void	1505	void
1247	_exit (code)	1506	_exit (code)
…		…
1249	PROTOTYPE: $	1508	PROTOTYPE: $
1250	CODE:	1509	CODE:
1251	_exit (code);	1510	_exit (code);
1252		1511
1253	int	1512	int
		1513	cctx_stacksize (int new_stacksize = 0)
		1514	CODE:
		1515	RETVAL = coro_stacksize;
		1516	if (new_stacksize)
		1517	coro_stacksize = new_stacksize;
		1518	OUTPUT:
		1519	RETVAL
		1520
		1521	int
1254	cctx_count ()	1522	cctx_count ()
1255	CODE:	1523	CODE:
1256	RETVAL = cctx_count;	1524	RETVAL = cctx_count;
1257	OUTPUT:	1525	OUTPUT:
1258	RETVAL	1526	RETVAL
…		…
1262	CODE:	1530	CODE:
1263	RETVAL = cctx_idle;	1531	RETVAL = cctx_idle;
1264	OUTPUT:	1532	OUTPUT:
1265	RETVAL	1533	RETVAL
1266		1534
		1535	void
		1536	list ()
		1537	PPCODE:
		1538	{
		1539	struct coro *coro;
		1540	for (coro = coro_first; coro; coro = coro->next)
		1541	if (coro->hv)
		1542	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1543	}
		1544
		1545	void
		1546	call (Coro::State coro, SV *coderef)
		1547	ALIAS:
		1548	eval = 1
		1549	CODE:
		1550	{
		1551	if (coro->mainstack)
		1552	{
		1553	struct coro temp;
		1554	Zero (&temp, 1, struct coro);
		1555
		1556	if (!(coro->flags & CF_RUNNING))
		1557	{
		1558	save_perl (aTHX_ &temp);
		1559	load_perl (aTHX_ coro);
		1560	}
		1561
		1562	{
		1563	dSP;
		1564	ENTER;
		1565	SAVETMPS;
		1566	PUSHMARK (SP);
		1567	PUTBACK;
		1568	if (ix)
		1569	eval_sv (coderef, 0);
		1570	else
		1571	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1572	SPAGAIN;
		1573	FREETMPS;
		1574	LEAVE;
		1575	PUTBACK;
		1576	}
		1577
		1578	if (!(coro->flags & CF_RUNNING))
		1579	{
		1580	save_perl (aTHX_ coro);
		1581	load_perl (aTHX_ &temp);
		1582	}
		1583	}
		1584	}
		1585
		1586	SV *
		1587	is_ready (Coro::State coro)
		1588	PROTOTYPE: $
		1589	ALIAS:
		1590	is_ready = CF_READY
		1591	is_running = CF_RUNNING
		1592	is_new = CF_NEW
		1593	is_destroyed = CF_DESTROYED
		1594	CODE:
		1595	RETVAL = boolSV (coro->flags & ix);
		1596	OUTPUT:
		1597	RETVAL
		1598
		1599	void
		1600	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1601
		1602	SV *
		1603	has_stack (Coro::State coro)
		1604	PROTOTYPE: $
		1605	CODE:
		1606	RETVAL = boolSV (!!coro->cctx);
		1607	OUTPUT:
		1608	RETVAL
		1609
		1610	int
		1611	is_traced (Coro::State coro)
		1612	PROTOTYPE: $
		1613	CODE:
		1614	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1615	OUTPUT:
		1616	RETVAL
		1617
		1618	IV
		1619	rss (Coro::State coro)
		1620	PROTOTYPE: $
		1621	ALIAS:
		1622	usecount = 1
		1623	CODE:
		1624	switch (ix)
		1625	{
		1626	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1627	case 1: RETVAL = coro->usecount; break;
		1628	}
		1629	OUTPUT:
		1630	RETVAL
		1631
		1632
1267	MODULE = Coro::State PACKAGE = Coro	1633	MODULE = Coro::State PACKAGE = Coro
1268		1634
1269	BOOT:	1635	BOOT:
1270	{	1636	{
1271	int i;	1637	int i;
		1638
		1639	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1640	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1641	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1642
		1643	coro_current = get_sv ("Coro::current", FALSE);
		1644	SvREADONLY_on (coro_current);
1272		1645
1273	coro_stash = gv_stashpv ("Coro", TRUE);	1646	coro_stash = gv_stashpv ("Coro", TRUE);
1274		1647
1275	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1648	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1276	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1649	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1277	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1650	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1278	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1651	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1279	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1652	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1280	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1653	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1281		1654
1282	coro_current = get_sv ("Coro::current", FALSE);
1283	SvREADONLY_on (coro_current);
1284
1285	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1655	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1286	coro_ready[i] = newAV ();	1656	coro_ready[i] = newAV ();
1287		1657
1288	{	1658	{
1289	SV *sv = perl_get_sv("Coro::API", 1);	1659	SV *sv = perl_get_sv("Coro::API", 1);
1290		1660
1291	coroapi.schedule = api_schedule;	1661	coroapi.schedule = api_schedule;
1292	coroapi.save = api_save;
1293	coroapi.cede = api_cede;	1662	coroapi.cede = api_cede;
1294	coroapi.cede_notself = api_cede_notself;	1663	coroapi.cede_notself = api_cede_notself;
1295	coroapi.ready = api_ready;	1664	coroapi.ready = api_ready;
1296	coroapi.is_ready = api_is_ready;	1665	coroapi.is_ready = api_is_ready;
1297	coroapi.nready = &coro_nready;	1666	coroapi.nready = &coro_nready;
…		…
1338	CODE:	1707	CODE:
1339	RETVAL = boolSV (api_ready (self));	1708	RETVAL = boolSV (api_ready (self));
1340	OUTPUT:	1709	OUTPUT:
1341	RETVAL	1710	RETVAL
1342		1711
1343	SV *
1344	is_ready (SV *self)
1345	PROTOTYPE: $
1346	CODE:
1347	RETVAL = boolSV (api_is_ready (self));
1348	OUTPUT:
1349	RETVAL
1350
1351	int	1712	int
1352	nready (...)	1713	nready (...)
1353	PROTOTYPE:	1714	PROTOTYPE:
1354	CODE:	1715	CODE:
1355	RETVAL = coro_nready;	1716	RETVAL = coro_nready;
1356	OUTPUT:	1717	OUTPUT:
1357	RETVAL	1718	RETVAL
1358		1719
		1720	# for async_pool speedup
		1721	void
		1722	_pool_1 (SV *cb)
		1723	CODE:
		1724	{
		1725	struct coro *coro = SvSTATE (coro_current);
		1726	HV hv = (HV )SvRV (coro_current);
		1727	AV *defav = GvAV (PL_defgv);
		1728	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1729	AV *invoke_av;
		1730	int i, len;
		1731
		1732	if (!invoke)
		1733	croak ("\3terminate\2\n");
		1734
		1735	SvREFCNT_dec (coro->saved_deffh);
		1736	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1737
		1738	hv_store (hv, "desc", sizeof ("desc") - 1,
		1739	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1740
		1741	invoke_av = (AV *)SvRV (invoke);
		1742	len = av_len (invoke_av);
		1743
		1744	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1745
		1746	if (len > 0)
		1747	{
		1748	av_fill (defav, len - 1);
		1749	for (i = 0; i < len; ++i)
		1750	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1751	}
		1752
		1753	SvREFCNT_dec (invoke);
		1754	}
		1755
		1756	void
		1757	_pool_2 (SV *cb)
		1758	CODE:
		1759	{
		1760	struct coro *coro = SvSTATE (coro_current);
		1761
		1762	sv_setsv (cb, &PL_sv_undef);
		1763
		1764	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1765	coro->saved_deffh = 0;
		1766
		1767	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1768	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1769	croak ("\3terminate\2\n");
		1770
		1771	av_clear (GvAV (PL_defgv));
		1772	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1773	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1774
		1775	coro->prio = 0;
		1776
		1777	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1778	api_trace (coro_current, 0);
		1779
		1780	av_push (av_async_pool, newSVsv (coro_current));
		1781	}
		1782
		1783
1359	MODULE = Coro::State PACKAGE = Coro::AIO	1784	MODULE = Coro::State PACKAGE = Coro::AIO
1360		1785
1361	SV *	1786	SV *
1362	_get_state ()	1787	_get_state ()
1363	CODE:	1788	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.138 by root, Sun Jan 14 20:49:45 2007 UTC vs. Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.138 by root, Sun Jan 14 20:49:45 2007 UTC vs.
Revision 1.193 by root, Fri Oct 5 23:38:40 2007 UTC