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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC vs.
Revision 1.192 by root, Fri Oct 5 21:51:40 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>
38	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))	40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
39	#else	41	#else
40	# define REGISTER_STACK(cctx,start,end)	42	# define REGISTER_STACK(cctx,start,end)
41	#endif	43	#endif
…		…
73	/* 5.8.7 */	75	/* 5.8.7 */
74	#ifndef SvRV_set	76	#ifndef SvRV_set
75	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
76	#endif	78	#endif
77		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
78	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
79	# undef STACKGUARD	89	# undef CORO_STACKGUARD
80	#endif	90	#endif
81		91
82	#ifndef STACKGUARD	92	#ifndef CORO_STACKGUARD
83	# define STACKGUARD 0	93	# define CORO_STACKGUARD 0
84	#endif	94	#endif
85		95
86	/* prefer perl internal functions over our own? */	96	/* prefer perl internal functions over our own? */
87	#ifndef PREFER_PERL_FUNCTIONS	97	#ifndef CORO_PREFER_PERL_FUNCTIONS
88	# define PREFER_PERL_FUNCTIONS 0	98	# define CORO_PREFER_PERL_FUNCTIONS 0
89	#endif	99	#endif
90		100
91	/* 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
92	* to the current C stack pointer. Its property is that it changes with each call	102	* portable way as possible. */
93	* and should be unique. */
94	#define dSTACKLEVEL int stacklevel	103	#define dSTACKLEVEL volatile char stacklevel
95	#define STACKLEVEL ((void *)&stacklevel)	104	#define STACKLEVEL ((void *)&stacklevel)
96		105
97	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
98		107
99	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
…		…
124	I32 laststype;	133	I32 laststype;
125	int laststatval;	134	int laststatval;
126	Stat_t statcache;	135	Stat_t statcache;
127	};	136	};
128		137
		138	static size_t coro_stacksize = CORO_STACKSIZE;
129	static struct CoroAPI coroapi;	139	static struct CoroAPI coroapi;
130	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;
131	static HV coro_state_stash, coro_stash;	142	static HV coro_state_stash, coro_stash;
132	static SV coro_mortal; / will be freed after next transfer */	143	static SV coro_mortal; / will be freed after next transfer */
133		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
134	static struct coro_cctx *cctx_first;	153	static struct coro_cctx *cctx_first;
135	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	};
136		164
137	/* this is a structure representing a c-level coroutine */	165	/* this is a structure representing a c-level coroutine */
138	typedef struct coro_cctx {	166	typedef struct coro_cctx {
139	struct coro_cctx *next;	167	struct coro_cctx *next;
140		168
141	/* the stack */	169	/* the stack */
142	void *sptr;	170	void *sptr;
143	ssize_t ssize; /* positive == mmap, otherwise malloc */	171	size_t ssize;
144		172
145	/* cpu state */	173	/* cpu state */
146	void idle_sp; / sp of top-level transfer/schedule/cede call */	174	void idle_sp; / sp of top-level transfer/schedule/cede call */
147	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 */
148	JMPENV *top_env;	176	JMPENV *top_env;
149	coro_context cctx;	177	coro_context cctx;
150		178
151	int inuse;
152
153	#if USE_VALGRIND	179	#if CORO_USE_VALGRIND
154	int valgrind_id;	180	int valgrind_id;
155	#endif	181	#endif
		182	unsigned char flags;
156	} coro_cctx;	183	} coro_cctx;
157		184
158	enum {	185	enum {
159	CF_RUNNING = 0x0001, /* coroutine is running */	186	CF_RUNNING = 0x0001, /* coroutine is running */
160	CF_READY = 0x0002, /* coroutine is ready */	187	CF_READY = 0x0002, /* coroutine is ready */
…		…
168	coro_cctx *cctx;	195	coro_cctx *cctx;
169		196
170	/* data associated with this coroutine (initial args) */	197	/* data associated with this coroutine (initial args) */
171	AV *args;	198	AV *args;
172	int refcnt;	199	int refcnt;
173	int save; /* CORO_SAVE flags */
174	int flags; /* CF_ flags */	200	int flags; /* CF_ flags */
175		201
176	/* optionally saved, might be zero */	202	/* optionally saved, might be zero */
177	AV defav; / @_ */	203	AV defav; / @_ */
178	SV defsv; / $_ */	204	SV defsv; / $_ */
179	SV errsv; / $@ */	205	SV errsv; / $@ */
		206	SV deffh; / default filehandle */
180	SV irssv; / $/ */	207	SV irssv; / $/ */
181	SV irssv_sv; / real $/ cache */	208	SV irssv_sv; / real $/ cache */
182		209
183	#define VAR(name,type) type name;	210	#define VAR(name,type) type name;
184	# include "state.h"	211	# include "state.h"
185	#undef VAR	212	#undef VAR
186		213
		214	/* statistics */
		215	int usecount; /* number of transfers to this coro */
		216
187	/* coro process data */	217	/* coro process data */
188	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 */
189	};	227	};
190		228
191	typedef struct coro *Coro__State;	229	typedef struct coro *Coro__State;
192	typedef struct coro *Coro__State_or_hashref;	230	typedef struct coro *Coro__State_or_hashref;
193		231
…		…
202		240
203	/* for Coro.pm */	241	/* for Coro.pm */
204	static SV *coro_current;	242	static SV *coro_current;
205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	243	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
206	static int coro_nready;	244	static int coro_nready;
		245	static struct coro *coro_first;
207		246
208	/ lowlevel stuff ********************************************************/	247	/ lowlevel stuff ********************************************************/
209		248
210	static AV *	249	static AV *
211	coro_clone_padlist (CV *cv)	250	coro_clone_padlist (pTHX_ CV *cv)
212	{	251	{
213	AV *padlist = CvPADLIST (cv);	252	AV *padlist = CvPADLIST (cv);
214	AV newpadlist, newpad;	253	AV newpadlist, newpad;
215		254
216	newpadlist = newAV ();	255	newpadlist = newAV ();
…		…
228		267
229	return newpadlist;	268	return newpadlist;
230	}	269	}
231		270
232	static void	271	static void
233	free_padlist (AV *padlist)	272	free_padlist (pTHX_ AV *padlist)
234	{	273	{
235	/* may be during global destruction */	274	/* may be during global destruction */
236	if (SvREFCNT (padlist))	275	if (SvREFCNT (padlist))
237	{	276	{
238	I32 i = AvFILLp (padlist);	277	I32 i = AvFILLp (padlist);
…		…
259	AV *padlist;	298	AV *padlist;
260	AV av = (AV )mg->mg_obj;	299	AV av = (AV )mg->mg_obj;
261		300
262	/* casting is fun. */	301	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	302	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);	303	free_padlist (aTHX_ padlist);
265		304
266	SvREFCNT_dec (av);	305	SvREFCNT_dec (av);
267		306
268	return 0;	307	return 0;
269	}	308	}
…		…
277	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	316	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
278	? SvMAGIC (cv) \	317	? SvMAGIC (cv) \
279	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	318	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
280	: 0	319	: 0
281		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
282	/* the next two functions merely cache the padlists */	347	/* the next two functions merely cache the padlists */
283	static void	348	static void
284	get_padlist (CV *cv)	349	get_padlist (pTHX_ CV *cv)
285	{	350	{
286	MAGIC *mg = CORO_MAGIC (cv);	351	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	352	AV *av;
288		353
289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	354	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
290	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	355	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
291	else	356	else
292	{	357	{
293	#if PREFER_PERL_FUNCTIONS	358	#if CORO_PREFER_PERL_FUNCTIONS
294	/* this is probably cleaner, but also slower? */	359	/* this is probably cleaner, but also slower? */
295	CV *cp = Perl_cv_clone (cv);	360	CV *cp = Perl_cv_clone (cv);
296	CvPADLIST (cv) = CvPADLIST (cp);	361	CvPADLIST (cv) = CvPADLIST (cp);
297	CvPADLIST (cp) = 0;	362	CvPADLIST (cp) = 0;
298	SvREFCNT_dec (cp);	363	SvREFCNT_dec (cp);
299	#else	364	#else
300	CvPADLIST (cv) = coro_clone_padlist (cv);	365	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
301	#endif	366	#endif
302	}	367	}
303	}	368	}
304		369
305	static void	370	static void
306	put_padlist (CV *cv)	371	put_padlist (pTHX_ CV *cv)
307	{	372	{
308	MAGIC *mg = CORO_MAGIC (cv);	373	MAGIC *mg = CORO_MAGIC (cv);
309	AV *av;	374	AV *av;
310		375
311	if (!mg)	376	if (!mg)
…		…
324	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	389	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
325	}	390	}
326		391
327	/ load & save, init *****************************************************/	392	/ load & save, init *****************************************************/
328		393
329	#define SB do {
330	#define SE } while (0)
331
332	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
333
334	static void	394	static void
335	load_perl (Coro__State c)	395	load_perl (pTHX_ Coro__State c)
336	{	396	{
337	#define VAR(name,type) PL_ ## name = c->name;	397	#define VAR(name,type) PL_ ## name = c->name;
338	# include "state.h"	398	# include "state.h"
339	#undef VAR	399	#undef VAR
340		400
341	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	401	GvSV (PL_defgv) = c->defsv;
342	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	402	GvAV (PL_defgv) = c->defav;
343	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	403	GvSV (PL_errgv) = c->errsv;
344	if (c->irssv)	404	GvSV (irsgv) = c->irssv_sv;
345	{
346	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
347	SvREFCNT_dec (c->irssv);
348	else
349	{
350	REPLACE_SV (PL_rs, c->irssv);
351	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
352	sv_setsv (c->irssv_sv, PL_rs);
353	}
354	}
355		405
356	{	406	{
357	dSP;	407	dSP;
358	CV *cv;	408	CV *cv;
359		409
360	/* now do the ugly restore mess */	410	/* now do the ugly restore mess */
361	while ((cv = (CV *)POPs))	411	while ((cv = (CV *)POPs))
362	{	412	{
363	put_padlist (cv); /* mark this padlist as available */	413	put_padlist (aTHX_ cv); /* mark this padlist as available */
364	CvDEPTH (cv) = PTR2IV (POPs);	414	CvDEPTH (cv) = PTR2IV (POPs);
365	CvPADLIST (cv) = (AV *)POPs;	415	CvPADLIST (cv) = (AV *)POPs;
366	}	416	}
367		417
368	PUTBACK;	418	PUTBACK;
369	}	419	}
370	}	420	}
371		421
372	static void	422	static void
373	save_perl (Coro__State c)	423	save_perl (pTHX_ Coro__State c)
374	{	424	{
375	{	425	{
376	dSP;	426	dSP;
377	I32 cxix = cxstack_ix;	427	I32 cxix = cxstack_ix;
378	PERL_CONTEXT *ccstk = cxstack;	428	PERL_CONTEXT *ccstk = cxstack;
…		…
381	/*	431	/*
382	* 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
383	* (and reinitialize) all cv's in the whole callchain :(	433	* (and reinitialize) all cv's in the whole callchain :(
384	*/	434	*/
385		435
386	EXTEND (SP, 3 + 1);
387	PUSHs (Nullsv);	436	XPUSHs (Nullsv);
388	/* this loop was inspired by pp_caller */	437	/* this loop was inspired by pp_caller */
389	for (;;)	438	for (;;)
390	{	439	{
391	while (cxix >= 0)	440	while (cxix >= 0)
392	{	441	{
393	PERL_CONTEXT *cx = &ccstk[cxix--];	442	PERL_CONTEXT *cx = &ccstk[cxix--];
394		443
395	if (CxTYPE (cx) == CXt_SUB)	444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
396	{	445	{
397	CV *cv = cx->blk_sub.cv;	446	CV *cv = cx->blk_sub.cv;
398		447
399	if (CvDEPTH (cv))	448	if (CvDEPTH (cv))
400	{	449	{
…		…
402	PUSHs ((SV *)CvPADLIST (cv));	451	PUSHs ((SV *)CvPADLIST (cv));
403	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
404	PUSHs ((SV *)cv);	453	PUSHs ((SV *)cv);
405		454
406	CvDEPTH (cv) = 0;	455	CvDEPTH (cv) = 0;
407	get_padlist (cv);	456	get_padlist (aTHX_ cv);
408	}	457	}
409	}	458	}
410	}	459	}
411		460
412	if (top_si->si_type == PERLSI_MAIN)	461	if (top_si->si_type == PERLSI_MAIN)
413	break;	462	break;
414		463
415	top_si = top_si->si_prev;	464	top_si = top_si->si_prev;
416	ccstk = top_si->si_cxstack;	465	ccstk = top_si->si_cxstack;
417	cxix = top_si->si_cxix;	466	cxix = top_si->si_cxix;
418	}	467	}
419		468
420	PUTBACK;	469	PUTBACK;
421	}	470	}
422		471
423	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	472	c->defav = GvAV (PL_defgv);
424	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	473	c->defsv = DEFSV;
425	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	474	c->errsv = ERRSV;
426	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	475	c->irssv_sv = GvSV (irsgv);
427		476
428	#define VAR(name,type)c->name = PL_ ## name;	477	#define VAR(name,type)c->name = PL_ ## name;
429	# include "state.h"	478	# include "state.h"
430	#undef VAR	479	#undef VAR
431	}	480	}
…		…
434	* allocate various perl stacks. This is an exact copy	483	* allocate various perl stacks. This is an exact copy
435	* of perl.c:init_stacks, except that it uses less memory	484	* of perl.c:init_stacks, except that it uses less memory
436	* on the (sometimes correct) assumption that coroutines do	485	* on the (sometimes correct) assumption that coroutines do
437	* not usually need a lot of stackspace.	486	* not usually need a lot of stackspace.
438	*/	487	*/
439	#if PREFER_PERL_FUNCTIONS	488	#if CORO_PREFER_PERL_FUNCTIONS
440	# define coro_init_stacks init_stacks	489	# define coro_init_stacks init_stacks
441	#else	490	#else
442	static void	491	static void
443	coro_init_stacks ()	492	coro_init_stacks (pTHX)
444	{	493	{
445	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	494	PL_curstackinfo = new_stackinfo(64, 6);
446	PL_curstackinfo->si_type = PERLSI_MAIN;	495	PL_curstackinfo->si_type = PERLSI_MAIN;
447	PL_curstack = PL_curstackinfo->si_stack;	496	PL_curstack = PL_curstackinfo->si_stack;
448	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	497	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
449		498
450	PL_stack_base = AvARRAY(PL_curstack);	499	PL_stack_base = AvARRAY(PL_curstack);
451	PL_stack_sp = PL_stack_base;	500	PL_stack_sp = PL_stack_base;
452	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	501	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
453		502
454	New(50,PL_tmps_stack,128,SV*);	503	New(50,PL_tmps_stack,64,SV*);
455	PL_tmps_floor = -1;	504	PL_tmps_floor = -1;
456	PL_tmps_ix = -1;	505	PL_tmps_ix = -1;
457	PL_tmps_max = 128;	506	PL_tmps_max = 64;
458		507
459	New(54,PL_markstack,32,I32);	508	New(54,PL_markstack,16,I32);
460	PL_markstack_ptr = PL_markstack;	509	PL_markstack_ptr = PL_markstack;
461	PL_markstack_max = PL_markstack + 32;	510	PL_markstack_max = PL_markstack + 16;
462		511
463	#ifdef SET_MARK_OFFSET	512	#ifdef SET_MARK_OFFSET
464	SET_MARK_OFFSET;	513	SET_MARK_OFFSET;
465	#endif	514	#endif
466		515
467	New(54,PL_scopestack,32,I32);	516	New(54,PL_scopestack,16,I32);
468	PL_scopestack_ix = 0;	517	PL_scopestack_ix = 0;
469	PL_scopestack_max = 32;	518	PL_scopestack_max = 16;
470		519
471	New(54,PL_savestack,64,ANY);	520	New(54,PL_savestack,64,ANY);
472	PL_savestack_ix = 0;	521	PL_savestack_ix = 0;
473	PL_savestack_max = 64;	522	PL_savestack_max = 64;
474		523
475	#if !PERL_VERSION_ATLEAST (5,9,0)	524	#if !PERL_VERSION_ATLEAST (5,9,0)
476	New(54,PL_retstack,16,OP*);	525	New(54,PL_retstack,4,OP*);
477	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
478	PL_retstack_max = 16;	527	PL_retstack_max = 4;
479	#endif	528	#endif
480	}	529	}
481	#endif	530	#endif
482		531
483	/*	532	/*
484	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
485	*/	534	*/
486	static void	535	static void
487	coro_destroy_stacks ()	536	coro_destroy_stacks (pTHX)
488	{	537	{
489	if (!IN_DESTRUCT)
490	{
491	/* restore all saved variables and stuff */
492	LEAVE_SCOPE (0);
493	assert (PL_tmps_floor == -1);
494
495	/* free all temporaries */
496	FREETMPS;
497	assert (PL_tmps_ix == -1);
498
499	/* unwind all extra stacks */
500	POPSTACK_TO (PL_mainstack);
501
502	/* unwind main stack */
503	dounwind (-1);
504	}
505
506	while (PL_curstackinfo->si_next)	538	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	539	PL_curstackinfo = PL_curstackinfo->si_next;
508		540
509	while (PL_curstackinfo)	541	while (PL_curstackinfo)
510	{	542	{
…		…
525	#if !PERL_VERSION_ATLEAST (5,9,0)	557	#if !PERL_VERSION_ATLEAST (5,9,0)
526	Safefree (PL_retstack);	558	Safefree (PL_retstack);
527	#endif	559	#endif
528	}	560	}
529		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
530	/ coroutine stack handling **********************************************/	593	/ coroutine stack handling **********************************************/
531		594
532	static void	595	static void
533	setup_coro (struct coro *coro)	596	coro_setup (pTHX_ struct coro *coro)
534	{	597	{
535	/*	598	/*
536	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
537	*/	600	*/
538
539	coro_init_stacks ();	601	coro_init_stacks (aTHX);
540		602
		603	PL_runops = RUNOPS_DEFAULT;
541	PL_curcop = &PL_compiling;	604	PL_curcop = &PL_compiling;
542	PL_in_eval = EVAL_NULL;	605	PL_in_eval = EVAL_NULL;
		606	PL_comppad = 0;
543	PL_curpm = 0;	607	PL_curpm = 0;
544	PL_localizing = 0;	608	PL_localizing = 0;
545	PL_dirty = 0;	609	PL_dirty = 0;
546	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 */
547		620
548	{	621	{
549	dSP;	622	dSP;
550	LOGOP myop;	623	LOGOP myop;
551		624
552	SvREFCNT_dec (GvAV (PL_defgv));
553	GvAV (PL_defgv) = coro->args; coro->args = 0;
554
555	Zero (&myop, 1, LOGOP);	625	Zero (&myop, 1, LOGOP);
556	myop.op_next = Nullop;	626	myop.op_next = Nullop;
557	myop.op_flags = OPf_WANT_VOID;	627	myop.op_flags = OPf_WANT_VOID;
558		628
559	PUSHMARK (SP);	629	PUSHMARK (SP);
560	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	630	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
561	PUTBACK;	631	PUTBACK;
562	PL_op = (OP *)&myop;	632	PL_op = (OP *)&myop;
563	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	633	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
564	SPAGAIN;	634	SPAGAIN;
565	}	635	}
566
567	ENTER; /* necessary e.g. for dounwind */
568	}	636	}
569		637
570	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
571	free_coro_mortal ()	672	free_coro_mortal (pTHX)
572	{	673	{
573	if (coro_mortal)	674	if (coro_mortal)
574	{	675	{
575	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;	677	coro_mortal = 0;
577	}	678	}
578	}	679	}
579		680
		681	static int
		682	runops_trace (pTHX)
		683	{
		684	COP *oldcop = 0;
		685	int oldcxix = -2;
		686	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		687	coro_cctx *cctx = coro->cctx;
		688
		689	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		690	{
		691	PERL_ASYNC_CHECK ();
		692
		693	if (cctx->flags & CC_TRACE_ALL)
		694	{
		695	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		696	{
		697	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		698	SV bot, top;
		699	AV av = newAV (); / return values */
		700	SV **cb;
		701	dSP;
		702
		703	GV *gv = CvGV (cx->blk_sub.cv);
		704	SV *fullname = sv_2mortal (newSV (0));
		705	if (isGV (gv))
		706	gv_efullname3 (fullname, gv, 0);
		707
		708	bot = PL_stack_base + cx->blk_oldsp + 1;
		709	top = cx->blk_gimme == G_ARRAY ? SP + 1
		710	: cx->blk_gimme == G_SCALAR ? bot + 1
		711	: bot;
		712
		713	while (bot < top)
		714	av_push (av, SvREFCNT_inc (*bot++));
		715
		716	PL_runops = RUNOPS_DEFAULT;
		717	ENTER;
		718	SAVETMPS;
		719	EXTEND (SP, 3);
		720	PUSHMARK (SP);
		721	PUSHs (&PL_sv_no);
		722	PUSHs (fullname);
		723	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		724	PUTBACK;
		725	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		726	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		727	SPAGAIN;
		728	FREETMPS;
		729	LEAVE;
		730	PL_runops = runops_trace;
		731	}
		732
		733	if (oldcop != PL_curcop)
		734	{
		735	oldcop = PL_curcop;
		736
		737	if (PL_curcop != &PL_compiling)
		738	{
		739	SV **cb;
		740
		741	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		742	{
		743	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		744
		745	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		746	{
		747	runops_proc_t old_runops = PL_runops;
		748	dSP;
		749	GV *gv = CvGV (cx->blk_sub.cv);
		750	SV *fullname = sv_2mortal (newSV (0));
		751
		752	if (isGV (gv))
		753	gv_efullname3 (fullname, gv, 0);
		754
		755	PL_runops = RUNOPS_DEFAULT;
		756	ENTER;
		757	SAVETMPS;
		758	EXTEND (SP, 3);
		759	PUSHMARK (SP);
		760	PUSHs (&PL_sv_yes);
		761	PUSHs (fullname);
		762	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		763	PUTBACK;
		764	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		765	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		766	SPAGAIN;
		767	FREETMPS;
		768	LEAVE;
		769	PL_runops = runops_trace;
		770	}
		771
		772	oldcxix = cxstack_ix;
		773	}
		774
		775	if (cctx->flags & CC_TRACE_LINE)
		776	{
		777	dSP;
		778
		779	PL_runops = RUNOPS_DEFAULT;
		780	ENTER;
		781	SAVETMPS;
		782	EXTEND (SP, 3);
		783	PL_runops = RUNOPS_DEFAULT;
		784	PUSHMARK (SP);
		785	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		786	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		787	PUTBACK;
		788	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		789	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		790	SPAGAIN;
		791	FREETMPS;
		792	LEAVE;
		793	PL_runops = runops_trace;
		794	}
		795	}
		796	}
		797	}
		798	}
		799
		800	TAINT_NOT;
		801	return 0;
		802	}
		803
580	/* inject a fake call to Coro::State::_cctx_init into the execution */	804	/* inject a fake call to Coro::State::_cctx_init into the execution */
		805	/* _cctx_init should be careful, as it could be called at almost any time */
		806	/* during execution of a perl program */
581	static void NOINLINE	807	static void NOINLINE
582	prepare_cctx (coro_cctx *cctx)	808	prepare_cctx (pTHX_ coro_cctx *cctx)
583	{	809	{
584	dSP;	810	dSP;
585	LOGOP myop;	811	LOGOP myop;
		812
		813	PL_top_env = &PL_start_env;
		814
		815	if (cctx->flags & CC_TRACE)
		816	PL_runops = runops_trace;
586		817
587	Zero (&myop, 1, LOGOP);	818	Zero (&myop, 1, LOGOP);
588	myop.op_next = PL_op;	819	myop.op_next = PL_op;
589	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	820	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
590		821
…		…
596	PL_op = (OP *)&myop;	827	PL_op = (OP *)&myop;
597	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	828	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
598	SPAGAIN;	829	SPAGAIN;
599	}	830	}
600		831
		832	/*
		833	* this is a _very_ stripped down perl interpreter ;)
		834	*/
601	static void	835	static void
602	coro_run (void *arg)	836	coro_run (void *arg)
603	{	837	{
		838	dTHX;
		839
604	/* coro_run is the alternative tail of transfer(), so unlock here. */	840	/* coro_run is the alternative tail of transfer(), so unlock here. */
605	UNLOCK;	841	UNLOCK;
606		842
607	/*	843	/* we now skip the entersub that lead to transfer() */
608	* this is a _very_ stripped down perl interpreter ;)	844	PL_op = PL_op->op_next;
609	*/
610	PL_top_env = &PL_start_env;
611		845
612	/* inject call to cctx_init */	846	/* inject a fake subroutine call to cctx_init */
613	prepare_cctx ((coro_cctx *)arg);	847	prepare_cctx (aTHX_ (coro_cctx *)arg);
614		848
615	/* somebody will hit me for both perl_run and PL_restartop */	849	/* somebody or something will hit me for both perl_run and PL_restartop */
616	PL_restartop = PL_op;	850	PL_restartop = PL_op;
617	perl_run (PL_curinterp);	851	perl_run (PL_curinterp);
618		852
619	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	853	/*
620	abort ();	854	* If perl-run returns we assume exit() was being called or the coro
		855	* fell off the end, which seems to be the only valid (non-bug)
		856	* reason for perl_run to return. We try to exit by jumping to the
		857	* bootstrap-time "top" top_env, as we cannot restore the "main"
		858	* coroutine as Coro has no such concept
		859	*/
		860	PL_top_env = main_top_env;
		861	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
621	}	862	}
622		863
623	static coro_cctx *	864	static coro_cctx *
624	cctx_new ()	865	cctx_new ()
625	{	866	{
626	coro_cctx *cctx;	867	coro_cctx *cctx;
		868	void *stack_start;
		869	size_t stack_size;
627		870
628	++cctx_count;	871	++cctx_count;
629		872
630	Newz (0, cctx, 1, coro_cctx);	873	Newz (0, cctx, 1, coro_cctx);
631		874
632	#if HAVE_MMAP	875	#if HAVE_MMAP
633		876
634	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	877	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
635	/* mmap supposedly does allocate-on-write for us */	878	/* mmap supposedly does allocate-on-write for us */
636	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	879	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
637		880
638	if (cctx->sptr != (void *)-1)	881	if (cctx->sptr != (void *)-1)
639	{	882	{
640	# if STACKGUARD	883	# if CORO_STACKGUARD
641	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	884	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
642	# endif	885	# endif
643	REGISTER_STACK (
644	cctx,
645	STACKGUARD * PAGESIZE + (char *)cctx->sptr,	886	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
646	cctx->ssize + (char *)cctx->sptr	887	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
647	);	888	cctx->flags \|= CC_MAPPED;
648
649	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
650	}	889	}
651	else	890	else
652	#endif	891	#endif
653	{	892	{
654	cctx->ssize = -STACKSIZE * (long)sizeof (long);	893	cctx->ssize = coro_stacksize * (long)sizeof (long);
655	New (0, cctx->sptr, STACKSIZE, long);	894	New (0, cctx->sptr, coro_stacksize, long);
656		895
657	if (!cctx->sptr)	896	if (!cctx->sptr)
658	{	897	{
659	perror ("FATAL: unable to allocate stack for coroutine");	898	perror ("FATAL: unable to allocate stack for coroutine");
660	_exit (EXIT_FAILURE);	899	_exit (EXIT_FAILURE);
661	}	900	}
662		901
663	REGISTER_STACK (	902	stack_start = cctx->sptr;
664	cctx,	903	stack_size = cctx->ssize;
665	(char *)cctx->sptr,	904	}
666	(char *)cctx->sptr - cctx->ssize
667	);
668		905
		906	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
669	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize);	907	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
670	}
671		908
672	return cctx;	909	return cctx;
673	}	910	}
674		911
675	static void	912	static void
…		…
678	if (!cctx)	915	if (!cctx)
679	return;	916	return;
680		917
681	--cctx_count;	918	--cctx_count;
682		919
683	#if USE_VALGRIND	920	#if CORO_USE_VALGRIND
684	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	921	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
685	#endif	922	#endif
686		923
687	#if HAVE_MMAP	924	#if HAVE_MMAP
688	if (cctx->ssize > 0)	925	if (cctx->flags & CC_MAPPED)
689	munmap (cctx->sptr, cctx->ssize);	926	munmap (cctx->sptr, cctx->ssize);
690	else	927	else
691	#endif	928	#endif
692	Safefree (cctx->sptr);	929	Safefree (cctx->sptr);
693		930
694	Safefree (cctx);	931	Safefree (cctx);
695	}	932	}
696		933
697	static coro_cctx *	934	static coro_cctx *
698	cctx_get ()	935	cctx_get (pTHX)
699	{	936	{
700	coro_cctx *cctx;
701
702	if (cctx_first)	937	while (cctx_first)
703	{	938	{
704	cctx = cctx_first;	939	coro_cctx *cctx = cctx_first;
705	cctx_first = cctx->next;	940	cctx_first = cctx->next;
706	--cctx_idle;	941	--cctx_idle;
707	}	942
708	else	943	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
709	{	944	return cctx;
710	cctx = cctx_new ();	945
711	PL_op = PL_op->op_next;	946	cctx_destroy (cctx);
712	}	947	}
713		948
714	return cctx;	949	return cctx_new ();
715	}	950	}
716		951
717	static void	952	static void
718	cctx_put (coro_cctx *cctx)	953	cctx_put (coro_cctx *cctx)
719	{	954	{
…		…
722	{	957	{
723	coro_cctx *first = cctx_first;	958	coro_cctx *first = cctx_first;
724	cctx_first = first->next;	959	cctx_first = first->next;
725	--cctx_idle;	960	--cctx_idle;
726		961
727	assert (!first->inuse);
728	cctx_destroy (first);	962	cctx_destroy (first);
729	}	963	}
730		964
731	++cctx_idle;	965	++cctx_idle;
732	cctx->next = cctx_first;	966	cctx->next = cctx_first;
733	cctx_first = cctx;	967	cctx_first = cctx;
734	}	968	}
735		969
736	/ coroutine switching ***************************************************/	970	/ coroutine switching ***************************************************/
737		971
738	/* never call directly, always through the coro_state_transfer global variable */
739	static void NOINLINE	972	static void NOINLINE
		973	transfer_check (pTHX_ struct coro prev, struct coro next)
		974	{
		975	if (prev != next)
		976	{
		977	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		978	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		979
		980	if (next->flags & CF_RUNNING)
		981	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		982
		983	if (next->flags & CF_DESTROYED)
		984	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		985
		986	if (PL_lex_state != LEX_NOTPARSING)
		987	croak ("Coro::State::transfer called while parsing, but this is not supported");
		988	}
		989	}
		990
		991	/* always use the TRANSFER macro */
		992	static void NOINLINE
740	transfer (struct coro prev, struct coro next)	993	transfer (pTHX_ struct coro prev, struct coro next)
741	{	994	{
742	dSTACKLEVEL;	995	dSTACKLEVEL;
743		996
744	/* sometimes transfer is only called to set idle_sp */	997	/* sometimes transfer is only called to set idle_sp */
745	if (!next)	998	if (!next)
…		…
753		1006
754	if (prev->flags & CF_NEW)	1007	if (prev->flags & CF_NEW)
755	{	1008	{
756	/* create a new empty context */	1009	/* create a new empty context */
757	Newz (0, prev->cctx, 1, coro_cctx);	1010	Newz (0, prev->cctx, 1, coro_cctx);
758	prev->cctx->inuse = 1;
759	prev->flags &= ~CF_NEW;	1011	prev->flags &= ~CF_NEW;
760	prev->flags \|= CF_RUNNING;	1012	prev->flags \|= CF_RUNNING;
761	}	1013	}
762
763	/TODO: must not croak here /
764	if (!prev->flags & CF_RUNNING)
765	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
766
767	if (next->flags & CF_RUNNING)
768	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
769
770	if (next->flags & CF_DESTROYED)
771	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
772		1014
773	prev->flags &= ~CF_RUNNING;	1015	prev->flags &= ~CF_RUNNING;
774	next->flags \|= CF_RUNNING;	1016	next->flags \|= CF_RUNNING;
775		1017
776	LOCK;	1018	LOCK;
…		…
778	if (next->flags & CF_NEW)	1020	if (next->flags & CF_NEW)
779	{	1021	{
780	/* need to start coroutine */	1022	/* need to start coroutine */
781	next->flags &= ~CF_NEW;	1023	next->flags &= ~CF_NEW;
782	/* first get rid of the old state */	1024	/* first get rid of the old state */
783	save_perl (prev);	1025	save_perl (aTHX_ prev);
784	/* setup coroutine call */	1026	/* setup coroutine call */
785	setup_coro (next);	1027	coro_setup (aTHX_ next);
786	/* need a new stack */
787	assert (!next->cctx);
788	}	1028	}
789	else	1029	else
790	{	1030	{
791	/* coroutine already started */	1031	/* coroutine already started */
792	save_perl (prev);	1032	save_perl (aTHX_ prev);
793	load_perl (next);	1033	load_perl (aTHX_ next);
794	}	1034	}
795		1035
796	prev__cctx = prev->cctx;	1036	prev__cctx = prev->cctx;
797		1037
798	/* possibly "free" the cctx */	1038	/* possibly "free" the cctx */
799	if (prev__cctx->idle_sp == STACKLEVEL)	1039	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
800	{	1040	{
801	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1041	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
802	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1042	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
803		1043
804	prev->cctx = 0;	1044	prev->cctx = 0;
805		1045
806	cctx_put (prev__cctx);	1046	cctx_put (prev__cctx);
807	prev__cctx->inuse = 0;
808	}	1047	}
809		1048
		1049	++next->usecount;
		1050
810	if (!next->cctx)	1051	if (!next->cctx)
811	{
812	next->cctx = cctx_get ();	1052	next->cctx = cctx_get (aTHX);
813	assert (!next->cctx->inuse);
814	next->cctx->inuse = 1;
815	}
816		1053
817	if (prev__cctx != next->cctx)	1054	if (prev__cctx != next->cctx)
818	{	1055	{
819	prev__cctx->top_env = PL_top_env;	1056	prev__cctx->top_env = PL_top_env;
820	PL_top_env = next->cctx->top_env;	1057	PL_top_env = next->cctx->top_env;
821	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1058	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
822	}	1059	}
823		1060
824	free_coro_mortal ();	1061	free_coro_mortal (aTHX);
825	UNLOCK;	1062	UNLOCK;
826	}	1063	}
827	}	1064	}
828		1065
829	struct transfer_args	1066	struct transfer_args
830	{	1067	{
831	struct coro prev, next;	1068	struct coro prev, next;
832	};	1069	};
833		1070
834	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1071	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1072	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
835		1073
836	/ high level stuff ******************************************************/	1074	/ high level stuff ******************************************************/
837		1075
838	static int	1076	static int
839	coro_state_destroy (struct coro *coro)	1077	coro_state_destroy (pTHX_ struct coro *coro)
840	{	1078	{
841	if (coro->flags & CF_DESTROYED)	1079	if (coro->flags & CF_DESTROYED)
842	return 0;	1080	return 0;
843		1081
844	coro->flags \|= CF_DESTROYED;	1082	coro->flags \|= CF_DESTROYED;
…		…
856		1094
857	if (coro->mainstack && coro->mainstack != main_mainstack)	1095	if (coro->mainstack && coro->mainstack != main_mainstack)
858	{	1096	{
859	struct coro temp;	1097	struct coro temp;
860		1098
861	assert (!(coro->flags & CF_RUNNING));
862
863	Zero (&temp, 1, struct coro);
864	temp.save = CORO_SAVE_ALL;
865
866	if (coro->flags & CF_RUNNING)	1099	if (coro->flags & CF_RUNNING)
867	croak ("FATAL: tried to destroy currently running coroutine");	1100	croak ("FATAL: tried to destroy currently running coroutine");
868		1101
869	save_perl (&temp);	1102	save_perl (aTHX_ &temp);
870	load_perl (coro);	1103	load_perl (aTHX_ coro);
871		1104
872	coro_destroy_stacks ();	1105	coro_destroy (aTHX_ coro);
873		1106
874	load_perl (&temp); /* this will get rid of defsv etc.. */	1107	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
875		1108
876	coro->mainstack = 0;	1109	coro->mainstack = 0;
877	}	1110	}
878		1111
879	cctx_destroy (coro->cctx);	1112	cctx_destroy (coro->cctx);
880	SvREFCNT_dec (coro->args);	1113	SvREFCNT_dec (coro->args);
881		1114
		1115	if (coro->next) coro->next->prev = coro->prev;
		1116	if (coro->prev) coro->prev->next = coro->next;
		1117	if (coro == coro_first) coro_first = coro->next;
		1118
882	return 1;	1119	return 1;
883	}	1120	}
884		1121
885	static int	1122	static int
886	coro_state_free (pTHX_ SV sv, MAGIC mg)	1123	coro_state_free (pTHX_ SV sv, MAGIC mg)
887	{	1124	{
888	struct coro coro = (struct coro )mg->mg_ptr;	1125	struct coro coro = (struct coro )mg->mg_ptr;
889	mg->mg_ptr = 0;	1126	mg->mg_ptr = 0;
890		1127
		1128	coro->hv = 0;
		1129
891	if (--coro->refcnt < 0)	1130	if (--coro->refcnt < 0)
892	{	1131	{
893	coro_state_destroy (coro);	1132	coro_state_destroy (aTHX_ coro);
894	Safefree (coro);	1133	Safefree (coro);
895	}	1134	}
896		1135
897	return 0;	1136	return 0;
898	}	1137	}
…		…
916	#else	1155	#else
917	# define MGf_DUP 0	1156	# define MGf_DUP 0
918	#endif	1157	#endif
919	};	1158	};
920		1159
921	static struct coro *
922	SvSTATE (SV *coro)
923	{
924	HV *stash;
925	MAGIC *mg;
926
927	if (SvROK (coro))
928	coro = SvRV (coro);
929
930	stash = SvSTASH (coro);
931	if (stash != coro_stash && stash != coro_state_stash)
932	{
933	/* very slow, but rare, check */
934	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
935	croak ("Coro::State object required");
936	}
937
938	mg = SvMAGIC (coro);
939	assert (mg->mg_type == PERL_MAGIC_ext);
940	return (struct coro *)mg->mg_ptr;
941	}
942
943	static void	1160	static void
944	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1161	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
945	{	1162	{
946	ta->prev = SvSTATE (prev_sv);	1163	ta->prev = SvSTATE (prev_sv);
947	ta->next = SvSTATE (next_sv);	1164	ta->next = SvSTATE (next_sv);
		1165	TRANSFER_CHECK (*ta);
948	}	1166	}
949		1167
950	static void	1168	static void
951	api_transfer (SV prev_sv, SV next_sv)	1169	api_transfer (SV prev_sv, SV next_sv)
952	{	1170	{
		1171	dTHX;
953	struct transfer_args ta;	1172	struct transfer_args ta;
954		1173
955	prepare_transfer (&ta, prev_sv, next_sv);	1174	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
956	TRANSFER (ta);	1175	TRANSFER (ta);
957	}	1176	}
958		1177
959	static int
960	api_save (SV *coro_sv, int new_save)
961	{
962	struct coro *coro = SvSTATE (coro_sv);
963	int old_save = coro->save;
964
965	if (new_save >= 0)
966	coro->save = new_save;
967
968	return old_save;
969	}
970
971	/ Coro ******************************************************************/	1178	/ Coro ******************************************************************/
972		1179
973	static void	1180	static void
974	coro_enq (SV *coro_sv)	1181	coro_enq (pTHX_ SV *coro_sv)
975	{	1182	{
976	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1183	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
977	}	1184	}
978		1185
979	static SV *	1186	static SV *
980	coro_deq (int min_prio)	1187	coro_deq (pTHX_ int min_prio)
981	{	1188	{
982	int prio = PRIO_MAX - PRIO_MIN;	1189	int prio = PRIO_MAX - PRIO_MIN;
983		1190
984	min_prio -= PRIO_MIN;	1191	min_prio -= PRIO_MIN;
985	if (min_prio < 0)	1192	if (min_prio < 0)
…		…
993	}	1200	}
994		1201
995	static int	1202	static int
996	api_ready (SV *coro_sv)	1203	api_ready (SV *coro_sv)
997	{	1204	{
		1205	dTHX;
998	struct coro *coro;	1206	struct coro *coro;
999		1207
1000	if (SvROK (coro_sv))	1208	if (SvROK (coro_sv))
1001	coro_sv = SvRV (coro_sv);	1209	coro_sv = SvRV (coro_sv);
1002		1210
…		…
1006	return 0;	1214	return 0;
1007		1215
1008	coro->flags \|= CF_READY;	1216	coro->flags \|= CF_READY;
1009		1217
1010	LOCK;	1218	LOCK;
1011	coro_enq (SvREFCNT_inc (coro_sv));	1219	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1012	++coro_nready;	1220	++coro_nready;
1013	UNLOCK;	1221	UNLOCK;
1014		1222
1015	return 1;	1223	return 1;
1016	}	1224	}
1017		1225
1018	static int	1226	static int
1019	api_is_ready (SV *coro_sv)	1227	api_is_ready (SV *coro_sv)
1020	{	1228	{
		1229	dTHX;
1021	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1230	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1022	}	1231	}
1023		1232
1024	static void	1233	static void
1025	prepare_schedule (struct transfer_args *ta)	1234	prepare_schedule (pTHX_ struct transfer_args *ta)
1026	{	1235	{
1027	SV prev_sv, next_sv;	1236	SV prev_sv, next_sv;
1028		1237
1029	for (;;)	1238	for (;;)
1030	{	1239	{
1031	LOCK;	1240	LOCK;
1032	next_sv = coro_deq (PRIO_MIN);	1241	next_sv = coro_deq (aTHX_ PRIO_MIN);
1033		1242
1034	/* nothing to schedule: call the idle handler */	1243	/* nothing to schedule: call the idle handler */
1035	if (!next_sv)	1244	if (!next_sv)
1036	{	1245	{
1037	dSP;	1246	dSP;
…		…
1065	break;	1274	break;
1066	}	1275	}
1067		1276
1068	/* free this only after the transfer */	1277	/* free this only after the transfer */
1069	prev_sv = SvRV (coro_current);	1278	prev_sv = SvRV (coro_current);
1070	SvRV_set (coro_current, next_sv);
1071	ta->prev = SvSTATE (prev_sv);	1279	ta->prev = SvSTATE (prev_sv);
1072		1280	TRANSFER_CHECK (*ta);
1073	assert (ta->next->flags & CF_READY);	1281	assert (ta->next->flags & CF_READY);
1074	ta->next->flags &= ~CF_READY;	1282	ta->next->flags &= ~CF_READY;
		1283	SvRV_set (coro_current, next_sv);
1075		1284
1076	LOCK;	1285	LOCK;
1077	free_coro_mortal ();	1286	free_coro_mortal (aTHX);
1078	coro_mortal = prev_sv;	1287	coro_mortal = prev_sv;
1079	UNLOCK;	1288	UNLOCK;
1080	}	1289	}
1081		1290
1082	static void	1291	static void
1083	prepare_cede (struct transfer_args *ta)	1292	prepare_cede (pTHX_ struct transfer_args *ta)
1084	{	1293	{
1085	api_ready (coro_current);	1294	api_ready (coro_current);
1086	prepare_schedule (ta);	1295	prepare_schedule (aTHX_ ta);
1087	}	1296	}
1088		1297
1089	static int	1298	static int
1090	prepare_cede_notself (struct transfer_args *ta)	1299	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1091	{	1300	{
1092	if (coro_nready)	1301	if (coro_nready)
1093	{	1302	{
1094	SV *prev = SvRV (coro_current);	1303	SV *prev = SvRV (coro_current);
1095	prepare_schedule (ta);	1304	prepare_schedule (aTHX_ ta);
1096	api_ready (prev);	1305	api_ready (prev);
1097	return 1;	1306	return 1;
1098	}	1307	}
1099	else	1308	else
1100	return 0;	1309	return 0;
1101	}	1310	}
1102		1311
1103	static void	1312	static void
1104	api_schedule (void)	1313	api_schedule (void)
1105	{	1314	{
		1315	dTHX;
1106	struct transfer_args ta;	1316	struct transfer_args ta;
1107		1317
1108	prepare_schedule (&ta);	1318	prepare_schedule (aTHX_ &ta);
1109	TRANSFER (ta);	1319	TRANSFER (ta);
1110	}	1320	}
1111		1321
1112	static int	1322	static int
1113	api_cede (void)	1323	api_cede (void)
1114	{	1324	{
		1325	dTHX;
1115	struct transfer_args ta;	1326	struct transfer_args ta;
1116		1327
1117	prepare_cede (&ta);	1328	prepare_cede (aTHX_ &ta);
1118		1329
1119	if (ta.prev != ta.next)	1330	if (ta.prev != ta.next)
1120	{	1331	{
1121	TRANSFER (ta);	1332	TRANSFER (ta);
1122	return 1;	1333	return 1;
…		…
1126	}	1337	}
1127		1338
1128	static int	1339	static int
1129	api_cede_notself (void)	1340	api_cede_notself (void)
1130	{	1341	{
		1342	dTHX;
1131	struct transfer_args ta;	1343	struct transfer_args ta;
1132		1344
1133	if (prepare_cede_notself (&ta))	1345	if (prepare_cede_notself (aTHX_ &ta))
1134	{	1346	{
1135	TRANSFER (ta);	1347	TRANSFER (ta);
1136	return 1;	1348	return 1;
1137	}	1349	}
1138	else	1350	else
1139	return 0;	1351	return 0;
1140	}	1352	}
1141		1353
		1354	static void
		1355	api_trace (SV *coro_sv, int flags)
		1356	{
		1357	dTHX;
		1358	struct coro *coro = SvSTATE (coro_sv);
		1359
		1360	if (flags & CC_TRACE)
		1361	{
		1362	if (!coro->cctx)
		1363	coro->cctx = cctx_new ();
		1364	else if (!(coro->cctx->flags & CC_TRACE))
		1365	croak ("cannot enable tracing on coroutine with custom stack");
		1366
		1367	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1368	}
		1369	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1370	{
		1371	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1372
		1373	if (coro->flags & CF_RUNNING)
		1374	PL_runops = RUNOPS_DEFAULT;
		1375	else
		1376	coro->runops = RUNOPS_DEFAULT;
		1377	}
		1378	}
		1379
1142	MODULE = Coro::State PACKAGE = Coro::State	1380	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1143		1381
1144	PROTOTYPES: DISABLE	1382	PROTOTYPES: DISABLE
1145		1383
1146	BOOT:	1384	BOOT:
1147	{	1385	{
1148	#ifdef USE_ITHREADS	1386	#ifdef USE_ITHREADS
1149	MUTEX_INIT (&coro_mutex);	1387	MUTEX_INIT (&coro_mutex);
1150	#endif	1388	#endif
1151	BOOT_PAGESIZE;	1389	BOOT_PAGESIZE;
1152		1390
		1391	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1392	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1393
1153	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1394	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1154		1395
		1396	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1397	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1155	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1398	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1156	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1157	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1158	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1159	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1399	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1160		1400
1161	main_mainstack = PL_mainstack;	1401	main_mainstack = PL_mainstack;
		1402	main_top_env = PL_top_env;
		1403
		1404	while (main_top_env->je_prev)
		1405	main_top_env = main_top_env->je_prev;
1162		1406
1163	coroapi.ver = CORO_API_VERSION;	1407	coroapi.ver = CORO_API_VERSION;
1164	coroapi.transfer = api_transfer;	1408	coroapi.transfer = api_transfer;
1165		1409
1166	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1410	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1173	struct coro *coro;	1417	struct coro *coro;
1174	HV *hv;	1418	HV *hv;
1175	int i;	1419	int i;
1176		1420
1177	Newz (0, coro, 1, struct coro);	1421	Newz (0, coro, 1, struct coro);
1178	coro->args = newAV ();	1422	coro->args = newAV ();
1179	coro->save = CORO_SAVE_ALL;
1180	coro->flags = CF_NEW;	1423	coro->flags = CF_NEW;
1181		1424
		1425	if (coro_first) coro_first->prev = coro;
		1426	coro->next = coro_first;
		1427	coro_first = coro;
		1428
1182	hv = newHV ();	1429	coro->hv = hv = newHV ();
1183	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1430	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1184	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1431	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1185		1432
		1433	av_extend (coro->args, items - 1);
		1434
1186	for (i = 1; i < items; i++)	1435	for (i = 1; i < items; i++)
1187	av_push (coro->args, newSVsv (ST (i)));	1436	av_push (coro->args, newSVsv (ST (i)));
1188	}	1437	}
1189	OUTPUT:	1438	OUTPUT:
1190	RETVAL	1439	RETVAL
1191		1440
1192	int	1441	# these not obviously related functions are all rolled into the same xs
1193	save (SV *coro, int new_save = -1)	1442	# function to increase chances that they all will call transfer with the same
1194	CODE:	1443	# stack offset
1195	RETVAL = api_save (coro, new_save);
1196	OUTPUT:
1197	RETVAL
1198
1199	void	1444	void
1200	_set_stacklevel (...)	1445	_set_stacklevel (...)
1201	ALIAS:	1446	ALIAS:
1202	Coro::State::transfer = 1	1447	Coro::State::transfer = 1
1203	Coro::schedule = 2	1448	Coro::schedule = 2
…		…
1216		1461
1217	case 1:	1462	case 1:
1218	if (items != 2)	1463	if (items != 2)
1219	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1464	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1220		1465
1221	prepare_transfer (&ta, ST (0), ST (1));	1466	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1222	break;	1467	break;
1223		1468
1224	case 2:	1469	case 2:
1225	prepare_schedule (&ta);	1470	prepare_schedule (aTHX_ &ta);
1226	break;	1471	break;
1227		1472
1228	case 3:	1473	case 3:
1229	prepare_cede (&ta);	1474	prepare_cede (aTHX_ &ta);
1230	break;	1475	break;
1231		1476
1232	case 4:	1477	case 4:
1233	if (!prepare_cede_notself (&ta))	1478	if (!prepare_cede_notself (aTHX_ &ta))
1234	XSRETURN_EMPTY;	1479	XSRETURN_EMPTY;
1235		1480
1236	break;	1481	break;
1237	}	1482	}
1238		1483
…		…
1244	}	1489	}
1245		1490
1246	bool	1491	bool
1247	_destroy (SV *coro_sv)	1492	_destroy (SV *coro_sv)
1248	CODE:	1493	CODE:
1249	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1494	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1250	OUTPUT:	1495	OUTPUT:
1251	RETVAL	1496	RETVAL
1252		1497
1253	void	1498	void
1254	_exit (code)	1499	_exit (code)
…		…
1256	PROTOTYPE: $	1501	PROTOTYPE: $
1257	CODE:	1502	CODE:
1258	_exit (code);	1503	_exit (code);
1259		1504
1260	int	1505	int
		1506	cctx_stacksize (int new_stacksize = 0)
		1507	CODE:
		1508	RETVAL = coro_stacksize;
		1509	if (new_stacksize)
		1510	coro_stacksize = new_stacksize;
		1511	OUTPUT:
		1512	RETVAL
		1513
		1514	int
1261	cctx_count ()	1515	cctx_count ()
1262	CODE:	1516	CODE:
1263	RETVAL = cctx_count;	1517	RETVAL = cctx_count;
1264	OUTPUT:	1518	OUTPUT:
1265	RETVAL	1519	RETVAL
…		…
1269	CODE:	1523	CODE:
1270	RETVAL = cctx_idle;	1524	RETVAL = cctx_idle;
1271	OUTPUT:	1525	OUTPUT:
1272	RETVAL	1526	RETVAL
1273		1527
		1528	void
		1529	list ()
		1530	PPCODE:
		1531	{
		1532	struct coro *coro;
		1533	for (coro = coro_first; coro; coro = coro->next)
		1534	if (coro->hv)
		1535	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1536	}
		1537
		1538	void
		1539	call (Coro::State coro, SV *coderef)
		1540	ALIAS:
		1541	eval = 1
		1542	CODE:
		1543	{
		1544	if (coro->mainstack)
		1545	{
		1546	struct coro temp;
		1547	Zero (&temp, 1, struct coro);
		1548
		1549	if (!(coro->flags & CF_RUNNING))
		1550	{
		1551	save_perl (aTHX_ &temp);
		1552	load_perl (aTHX_ coro);
		1553	}
		1554
		1555	{
		1556	dSP;
		1557	ENTER;
		1558	SAVETMPS;
		1559	PUSHMARK (SP);
		1560	PUTBACK;
		1561	if (ix)
		1562	eval_sv (coderef, 0);
		1563	else
		1564	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1565	SPAGAIN;
		1566	FREETMPS;
		1567	LEAVE;
		1568	PUTBACK;
		1569	}
		1570
		1571	if (!(coro->flags & CF_RUNNING))
		1572	{
		1573	save_perl (aTHX_ coro);
		1574	load_perl (aTHX_ &temp);
		1575	}
		1576	}
		1577	}
		1578
		1579	SV *
		1580	is_ready (Coro::State coro)
		1581	PROTOTYPE: $
		1582	ALIAS:
		1583	is_ready = CF_READY
		1584	is_running = CF_RUNNING
		1585	is_new = CF_NEW
		1586	is_destroyed = CF_DESTROYED
		1587	CODE:
		1588	RETVAL = boolSV (coro->flags & ix);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	void
		1593	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1594
		1595	SV *
		1596	has_stack (Coro::State coro)
		1597	PROTOTYPE: $
		1598	CODE:
		1599	RETVAL = boolSV (!!coro->cctx);
		1600	OUTPUT:
		1601	RETVAL
		1602
		1603	int
		1604	is_traced (Coro::State coro)
		1605	PROTOTYPE: $
		1606	CODE:
		1607	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1608	OUTPUT:
		1609	RETVAL
		1610
		1611	IV
		1612	rss (Coro::State coro)
		1613	PROTOTYPE: $
		1614	ALIAS:
		1615	usecount = 1
		1616	CODE:
		1617	switch (ix)
		1618	{
		1619	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1620	case 1: RETVAL = coro->usecount; break;
		1621	}
		1622	OUTPUT:
		1623	RETVAL
		1624
		1625
1274	MODULE = Coro::State PACKAGE = Coro	1626	MODULE = Coro::State PACKAGE = Coro
1275		1627
1276	BOOT:	1628	BOOT:
1277	{	1629	{
1278	int i;	1630	int i;
		1631
		1632	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1633	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1634	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1635
		1636	coro_current = get_sv ("Coro::current", FALSE);
		1637	SvREADONLY_on (coro_current);
1279		1638
1280	coro_stash = gv_stashpv ("Coro", TRUE);	1639	coro_stash = gv_stashpv ("Coro", TRUE);
1281		1640
1282	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1641	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1283	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1642	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1284	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1643	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1285	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1644	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1286	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1645	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1287	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1646	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1288		1647
1289	coro_current = get_sv ("Coro::current", FALSE);
1290	SvREADONLY_on (coro_current);
1291
1292	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1648	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1293	coro_ready[i] = newAV ();	1649	coro_ready[i] = newAV ();
1294		1650
1295	{	1651	{
1296	SV *sv = perl_get_sv("Coro::API", 1);	1652	SV *sv = perl_get_sv("Coro::API", 1);
1297		1653
1298	coroapi.schedule = api_schedule;	1654	coroapi.schedule = api_schedule;
1299	coroapi.save = api_save;
1300	coroapi.cede = api_cede;	1655	coroapi.cede = api_cede;
1301	coroapi.cede_notself = api_cede_notself;	1656	coroapi.cede_notself = api_cede_notself;
1302	coroapi.ready = api_ready;	1657	coroapi.ready = api_ready;
1303	coroapi.is_ready = api_is_ready;	1658	coroapi.is_ready = api_is_ready;
1304	coroapi.nready = &coro_nready;	1659	coroapi.nready = &coro_nready;
…		…
1345	CODE:	1700	CODE:
1346	RETVAL = boolSV (api_ready (self));	1701	RETVAL = boolSV (api_ready (self));
1347	OUTPUT:	1702	OUTPUT:
1348	RETVAL	1703	RETVAL
1349		1704
1350	SV *
1351	is_ready (SV *self)
1352	PROTOTYPE: $
1353	CODE:
1354	RETVAL = boolSV (api_is_ready (self));
1355	OUTPUT:
1356	RETVAL
1357
1358	int	1705	int
1359	nready (...)	1706	nready (...)
1360	PROTOTYPE:	1707	PROTOTYPE:
1361	CODE:	1708	CODE:
1362	RETVAL = coro_nready;	1709	RETVAL = coro_nready;
1363	OUTPUT:	1710	OUTPUT:
1364	RETVAL	1711	RETVAL
1365		1712
		1713	# for async_pool speedup
		1714	void
		1715	_pool_1 (SV *cb)
		1716	CODE:
		1717	{
		1718	struct coro *coro = SvSTATE (coro_current);
		1719	HV hv = (HV )SvRV (coro_current);
		1720	AV *defav = GvAV (PL_defgv);
		1721	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1722	AV *invoke_av;
		1723	int i, len;
		1724
		1725	if (!invoke)
		1726	croak ("\3terminate\2\n");
		1727
		1728	SvREFCNT_dec (coro->saved_deffh);
		1729	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1730
		1731	hv_store (hv, "desc", sizeof ("desc") - 1,
		1732	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1733
		1734	invoke_av = (AV *)SvRV (invoke);
		1735	len = av_len (invoke_av);
		1736
		1737	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1738
		1739	if (len > 0)
		1740	{
		1741	av_fill (defav, len - 1);
		1742	for (i = 0; i < len; ++i)
		1743	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1744	}
		1745
		1746	SvREFCNT_dec (invoke);
		1747	}
		1748
		1749	void
		1750	_pool_2 (SV *cb)
		1751	CODE:
		1752	{
		1753	struct coro *coro = SvSTATE (coro_current);
		1754
		1755	sv_setsv (cb, &PL_sv_undef);
		1756
		1757	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1758	coro->saved_deffh = 0;
		1759
		1760	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1761	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1762	croak ("\3terminate\2\n");
		1763
		1764	av_clear (GvAV (PL_defgv));
		1765	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1766	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1767
		1768	coro->prio = 0;
		1769
		1770	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1771	api_trace (coro_current, 0);
		1772
		1773	av_push (av_async_pool, newSVsv (coro_current));
		1774	}
		1775
		1776
1366	MODULE = Coro::State PACKAGE = Coro::AIO	1777	MODULE = Coro::State PACKAGE = Coro::AIO
1367		1778
1368	SV *	1779	SV *
1369	_get_state ()	1780	_get_state ()
1370	CODE:	1781	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC vs. Revision 1.192 by root, Fri Oct 5 21:51:40 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC vs.
Revision 1.192 by root, Fri Oct 5 21:51:40 2007 UTC