[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 1.181 by root, Wed Oct 3 17:37:33 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
…		…
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
78	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
79	# undef STACKGUARD	81	# undef CORO_STACKGUARD
80	#endif	82	#endif
81		83
82	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
83	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
84	#endif	86	#endif
85		87
86	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
87	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
88	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
89	#endif	91	#endif
90		92
91	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macros try to return the current stack pointer, in an as
92	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
93	* and should be unique. */
94	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
95	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
96		97
97	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
98		99
99	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
124	I32 laststype;	125	I32 laststype;
125	int laststatval;	126	int laststatval;
126	Stat_t statcache;	127	Stat_t statcache;
127	};	128	};
128		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
129	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
130	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
131	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
132	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
133		136
		137	static GV irsgv; / $/ */
		138
		139	/* async_pool helper stuff */
		140	static SV *sv_pool_rss;
		141	static SV *sv_pool_size;
		142	static AV *av_async_pool;
		143
134	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
135	static int cctx_count, cctx_idle;	145	static int cctx_count, cctx_idle;
		146
		147	enum {
		148	CC_MAPPED = 0x01,
		149	CC_NOREUSE = 0x02, /* throw this away after tracing */
		150	CC_TRACE = 0x04,
		151	CC_TRACE_SUB = 0x08, /* trace sub calls */
		152	CC_TRACE_LINE = 0x10, /* trace each statement */
		153	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		154	};
136		155
137	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
138	typedef struct coro_cctx {	157	typedef struct coro_cctx {
139	struct coro_cctx *next;	158	struct coro_cctx *next;
140		159
141	/* the stack */	160	/* the stack */
142	void *sptr;	161	void *sptr;
143	ssize_t ssize; /* positive == mmap, otherwise malloc */	162	size_t ssize;
144		163
145	/* cpu state */	164	/* cpu state */
146	void idle_sp; / sp of top-level transfer/schedule/cede call */	165	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 */	166	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
148	JMPENV *top_env;	167	JMPENV *top_env;
149	coro_context cctx;	168	coro_context cctx;
150		169
151	int inuse;
152
153	#if USE_VALGRIND	170	#if CORO_USE_VALGRIND
154	int valgrind_id;	171	int valgrind_id;
155	#endif	172	#endif
		173	unsigned char flags;
156	} coro_cctx;	174	} coro_cctx;
157		175
158	enum {	176	enum {
159	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
160	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
…		…
168	coro_cctx *cctx;	186	coro_cctx *cctx;
169		187
170	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
171	AV *args;	189	AV *args;
172	int refcnt;	190	int refcnt;
173	int save; /* CORO_SAVE flags */
174	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
175		192
176	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
177	AV defav; / @_ */	194	AV defav; / @_ */
178	SV defsv; / $_ */	195	SV defsv; / $_ */
179	SV errsv; / $@ */	196	SV errsv; / $@ */
		197	GV deffh; / default filehandle */
180	SV irssv; / $/ */	198	SV irssv; / $/ */
181	SV irssv_sv; / real $/ cache */	199	SV irssv_sv; / real $/ cache */
182		200
183	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
184	# include "state.h"	202	# include "state.h"
185	#undef VAR	203	#undef VAR
186		204
		205	/* statistics */
		206	int usecount; /* number of transfers to this coro */
		207
187	/* coro process data */	208	/* coro process data */
188	int prio;	209	int prio;
		210	//SV *throw;
		211
		212	/* async_pool */
		213	GV *defoutgv;
		214
		215	/* linked list */
		216	struct coro next, prev;
		217	HV hv; / the perl hash associated with this coro, if any */
189	};	218	};
190		219
191	typedef struct coro *Coro__State;	220	typedef struct coro *Coro__State;
192	typedef struct coro *Coro__State_or_hashref;	221	typedef struct coro *Coro__State_or_hashref;
193		222
…		…
202		231
203	/* for Coro.pm */	232	/* for Coro.pm */
204	static SV *coro_current;	233	static SV *coro_current;
205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
206	static int coro_nready;	235	static int coro_nready;
		236	static struct coro *coro_first;
207		237
208	/ lowlevel stuff ********************************************************/	238	/ lowlevel stuff ********************************************************/
209		239
210	static AV *	240	static AV *
211	coro_clone_padlist (CV *cv)	241	coro_clone_padlist (pTHX_ CV *cv)
212	{	242	{
213	AV *padlist = CvPADLIST (cv);	243	AV *padlist = CvPADLIST (cv);
214	AV newpadlist, newpad;	244	AV newpadlist, newpad;
215		245
216	newpadlist = newAV ();	246	newpadlist = newAV ();
…		…
228		258
229	return newpadlist;	259	return newpadlist;
230	}	260	}
231		261
232	static void	262	static void
233	free_padlist (AV *padlist)	263	free_padlist (pTHX_ AV *padlist)
234	{	264	{
235	/* may be during global destruction */	265	/* may be during global destruction */
236	if (SvREFCNT (padlist))	266	if (SvREFCNT (padlist))
237	{	267	{
238	I32 i = AvFILLp (padlist);	268	I32 i = AvFILLp (padlist);
…		…
259	AV *padlist;	289	AV *padlist;
260	AV av = (AV )mg->mg_obj;	290	AV av = (AV )mg->mg_obj;
261		291
262	/* casting is fun. */	292	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	293	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);	294	free_padlist (aTHX_ padlist);
265		295
266	SvREFCNT_dec (av);	296	SvREFCNT_dec (av);
267		297
268	return 0;	298	return 0;
269	}	299	}
…		…
277	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
278	? SvMAGIC (cv) \	308	? SvMAGIC (cv) \
279	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
280	: 0	310	: 0
281		311
		312	static struct coro *
		313	SvSTATE_ (pTHX_ SV *coro)
		314	{
		315	HV *stash;
		316	MAGIC *mg;
		317
		318	if (SvROK (coro))
		319	coro = SvRV (coro);
		320
		321	if (SvTYPE (coro) != SVt_PVHV)
		322	croak ("Coro::State object required");
		323
		324	stash = SvSTASH (coro);
		325	if (stash != coro_stash && stash != coro_state_stash)
		326	{
		327	/* very slow, but rare, check */
		328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		329	croak ("Coro::State object required");
		330	}
		331
		332	mg = CORO_MAGIC (coro);
		333	return (struct coro *)mg->mg_ptr;
		334	}
		335
		336	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		337
282	/* the next two functions merely cache the padlists */	338	/* the next two functions merely cache the padlists */
283	static void	339	static void
284	get_padlist (CV *cv)	340	get_padlist (pTHX_ CV *cv)
285	{	341	{
286	MAGIC *mg = CORO_MAGIC (cv);	342	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	343	AV *av;
288		344
289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	345	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
290	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	346	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
291	else	347	else
292	{	348	{
293	#if PREFER_PERL_FUNCTIONS	349	#if CORO_PREFER_PERL_FUNCTIONS
294	/* this is probably cleaner, but also slower? */	350	/* this is probably cleaner, but also slower? */
295	CV *cp = Perl_cv_clone (cv);	351	CV *cp = Perl_cv_clone (cv);
296	CvPADLIST (cv) = CvPADLIST (cp);	352	CvPADLIST (cv) = CvPADLIST (cp);
297	CvPADLIST (cp) = 0;	353	CvPADLIST (cp) = 0;
298	SvREFCNT_dec (cp);	354	SvREFCNT_dec (cp);
299	#else	355	#else
300	CvPADLIST (cv) = coro_clone_padlist (cv);	356	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
301	#endif	357	#endif
302	}	358	}
303	}	359	}
304		360
305	static void	361	static void
306	put_padlist (CV *cv)	362	put_padlist (pTHX_ CV *cv)
307	{	363	{
308	MAGIC *mg = CORO_MAGIC (cv);	364	MAGIC *mg = CORO_MAGIC (cv);
309	AV *av;	365	AV *av;
310		366
311	if (!mg)	367	if (!mg)
…		…
324	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
325	}	381	}
326		382
327	/ load & save, init *****************************************************/	383	/ load & save, init *****************************************************/
328		384
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	385	static void
335	load_perl (Coro__State c)	386	load_perl (pTHX_ Coro__State c)
336	{	387	{
337	#define VAR(name,type) PL_ ## name = c->name;	388	#define VAR(name,type) PL_ ## name = c->name;
338	# include "state.h"	389	# include "state.h"
339	#undef VAR	390	#undef VAR
340		391
341	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	392	GvSV (PL_defgv) = c->defsv;
342	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	GvAV (PL_defgv) = c->defav;
343	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	GvSV (PL_errgv) = c->errsv;
344	if (c->irssv)	395	PL_defoutgv = c->deffh;
345	{	396	PL_rs = c->irssv;
346	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	397	GvSV (irsgv) = c->irssv_sv;
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		398
356	{	399	{
357	dSP;	400	dSP;
358	CV *cv;	401	CV *cv;
359		402
360	/* now do the ugly restore mess */	403	/* now do the ugly restore mess */
361	while ((cv = (CV *)POPs))	404	while ((cv = (CV *)POPs))
362	{	405	{
363	put_padlist (cv); /* mark this padlist as available */	406	put_padlist (aTHX_ cv); /* mark this padlist as available */
364	CvDEPTH (cv) = PTR2IV (POPs);	407	CvDEPTH (cv) = PTR2IV (POPs);
365	CvPADLIST (cv) = (AV *)POPs;	408	CvPADLIST (cv) = (AV *)POPs;
366	}	409	}
367		410
368	PUTBACK;	411	PUTBACK;
369	}	412	}
370	}	413	}
371		414
372	static void	415	static void
373	save_perl (Coro__State c)	416	save_perl (pTHX_ Coro__State c)
374	{	417	{
375	{	418	{
376	dSP;	419	dSP;
377	I32 cxix = cxstack_ix;	420	I32 cxix = cxstack_ix;
378	PERL_CONTEXT *ccstk = cxstack;	421	PERL_CONTEXT *ccstk = cxstack;
…		…
381	/*	424	/*
382	* the worst thing you can imagine happens first - we have to save	425	* the worst thing you can imagine happens first - we have to save
383	* (and reinitialize) all cv's in the whole callchain :(	426	* (and reinitialize) all cv's in the whole callchain :(
384	*/	427	*/
385		428
386	EXTEND (SP, 3 + 1);
387	PUSHs (Nullsv);	429	XPUSHs (Nullsv);
388	/* this loop was inspired by pp_caller */	430	/* this loop was inspired by pp_caller */
389	for (;;)	431	for (;;)
390	{	432	{
391	while (cxix >= 0)	433	while (cxix >= 0)
392	{	434	{
393	PERL_CONTEXT *cx = &ccstk[cxix--];	435	PERL_CONTEXT *cx = &ccstk[cxix--];
394		436
395	if (CxTYPE (cx) == CXt_SUB)	437	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
396	{	438	{
397	CV *cv = cx->blk_sub.cv;	439	CV *cv = cx->blk_sub.cv;
398		440
399	if (CvDEPTH (cv))	441	if (CvDEPTH (cv))
400	{	442	{
…		…
402	PUSHs ((SV *)CvPADLIST (cv));	444	PUSHs ((SV *)CvPADLIST (cv));
403	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	445	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
404	PUSHs ((SV *)cv);	446	PUSHs ((SV *)cv);
405		447
406	CvDEPTH (cv) = 0;	448	CvDEPTH (cv) = 0;
407	get_padlist (cv);	449	get_padlist (aTHX_ cv);
408	}	450	}
409	}	451	}
410	}	452	}
411		453
412	if (top_si->si_type == PERLSI_MAIN)	454	if (top_si->si_type == PERLSI_MAIN)
413	break;	455	break;
414		456
415	top_si = top_si->si_prev;	457	top_si = top_si->si_prev;
416	ccstk = top_si->si_cxstack;	458	ccstk = top_si->si_cxstack;
417	cxix = top_si->si_cxix;	459	cxix = top_si->si_cxix;
418	}	460	}
419		461
420	PUTBACK;	462	PUTBACK;
421	}	463	}
422		464
423	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	465	c->defav = GvAV (PL_defgv);
424	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	466	c->defsv = DEFSV;
425	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	467	c->errsv = ERRSV;
426	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	468	c->deffh = PL_defoutgv;
		469	c->irssv = PL_rs;
		470	c->irssv_sv = GvSV (irsgv);
427		471
428	#define VAR(name,type)c->name = PL_ ## name;	472	#define VAR(name,type)c->name = PL_ ## name;
429	# include "state.h"	473	# include "state.h"
430	#undef VAR	474	#undef VAR
431	}	475	}
…		…
434	* allocate various perl stacks. This is an exact copy	478	* allocate various perl stacks. This is an exact copy
435	* of perl.c:init_stacks, except that it uses less memory	479	* of perl.c:init_stacks, except that it uses less memory
436	* on the (sometimes correct) assumption that coroutines do	480	* on the (sometimes correct) assumption that coroutines do
437	* not usually need a lot of stackspace.	481	* not usually need a lot of stackspace.
438	*/	482	*/
439	#if PREFER_PERL_FUNCTIONS	483	#if CORO_PREFER_PERL_FUNCTIONS
440	# define coro_init_stacks init_stacks	484	# define coro_init_stacks init_stacks
441	#else	485	#else
442	static void	486	static void
443	coro_init_stacks ()	487	coro_init_stacks (pTHX)
444	{	488	{
445	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	489	PL_curstackinfo = new_stackinfo(64, 6);
446	PL_curstackinfo->si_type = PERLSI_MAIN;	490	PL_curstackinfo->si_type = PERLSI_MAIN;
447	PL_curstack = PL_curstackinfo->si_stack;	491	PL_curstack = PL_curstackinfo->si_stack;
448	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	492	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
449		493
450	PL_stack_base = AvARRAY(PL_curstack);	494	PL_stack_base = AvARRAY(PL_curstack);
451	PL_stack_sp = PL_stack_base;	495	PL_stack_sp = PL_stack_base;
452	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	496	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
453		497
454	New(50,PL_tmps_stack,128,SV*);	498	New(50,PL_tmps_stack,64,SV*);
455	PL_tmps_floor = -1;	499	PL_tmps_floor = -1;
456	PL_tmps_ix = -1;	500	PL_tmps_ix = -1;
457	PL_tmps_max = 128;	501	PL_tmps_max = 64;
458		502
459	New(54,PL_markstack,32,I32);	503	New(54,PL_markstack,16,I32);
460	PL_markstack_ptr = PL_markstack;	504	PL_markstack_ptr = PL_markstack;
461	PL_markstack_max = PL_markstack + 32;	505	PL_markstack_max = PL_markstack + 16;
462		506
463	#ifdef SET_MARK_OFFSET	507	#ifdef SET_MARK_OFFSET
464	SET_MARK_OFFSET;	508	SET_MARK_OFFSET;
465	#endif	509	#endif
466		510
467	New(54,PL_scopestack,32,I32);	511	New(54,PL_scopestack,16,I32);
468	PL_scopestack_ix = 0;	512	PL_scopestack_ix = 0;
469	PL_scopestack_max = 32;	513	PL_scopestack_max = 16;
470		514
471	New(54,PL_savestack,64,ANY);	515	New(54,PL_savestack,64,ANY);
472	PL_savestack_ix = 0;	516	PL_savestack_ix = 0;
473	PL_savestack_max = 64;	517	PL_savestack_max = 64;
474		518
475	#if !PERL_VERSION_ATLEAST (5,9,0)	519	#if !PERL_VERSION_ATLEAST (5,9,0)
476	New(54,PL_retstack,16,OP*);	520	New(54,PL_retstack,4,OP*);
477	PL_retstack_ix = 0;	521	PL_retstack_ix = 0;
478	PL_retstack_max = 16;	522	PL_retstack_max = 4;
479	#endif	523	#endif
480	}	524	}
481	#endif	525	#endif
482		526
483	/*	527	/*
484	* destroy the stacks, the callchain etc...	528	* destroy the stacks, the callchain etc...
485	*/	529	*/
486	static void	530	static void
487	coro_destroy_stacks ()	531	coro_destroy_stacks (pTHX)
488	{	532	{
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)	533	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	534	PL_curstackinfo = PL_curstackinfo->si_next;
508		535
509	while (PL_curstackinfo)	536	while (PL_curstackinfo)
510	{	537	{
…		…
525	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
526	Safefree (PL_retstack);	553	Safefree (PL_retstack);
527	#endif	554	#endif
528	}	555	}
529		556
		557	static size_t
		558	coro_rss (pTHX_ struct coro *coro)
		559	{
		560	size_t rss = sizeof (coro);
		561
		562	if (coro->mainstack)
		563	{
		564	if (coro->flags & CF_RUNNING)
		565	{
		566	#define VAR(name,type)coro->name = PL_ ## name;
		567	# include "state.h"
		568	#undef VAR
		569	}
		570
		571	rss += sizeof (coro->curstackinfo);
		572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		575	rss += coro->tmps_max * sizeof (SV *);
		576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		577	rss += coro->scopestack_max * sizeof (I32);
		578	rss += coro->savestack_max * sizeof (ANY);
		579
		580	#if !PERL_VERSION_ATLEAST (5,9,0)
		581	rss += coro->retstack_max * sizeof (OP *);
		582	#endif
		583	}
		584
		585	return rss;
		586	}
		587
530	/ coroutine stack handling **********************************************/	588	/ coroutine stack handling **********************************************/
531		589
532	static void	590	static void
533	setup_coro (struct coro *coro)	591	coro_setup (pTHX_ struct coro *coro)
534	{	592	{
535	/*	593	/*
536	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
537	*/	595	*/
538
539	coro_init_stacks ();	596	coro_init_stacks (aTHX);
540		597
		598	PL_runops = RUNOPS_DEFAULT;
541	PL_curcop = &PL_compiling;	599	PL_curcop = &PL_compiling;
542	PL_in_eval = EVAL_NULL;	600	PL_in_eval = EVAL_NULL;
		601	PL_comppad = 0;
543	PL_curpm = 0;	602	PL_curpm = 0;
544	PL_localizing = 0;	603	PL_localizing = 0;
545	PL_dirty = 0;	604	PL_dirty = 0;
546	PL_restartop = 0;	605	PL_restartop = 0;
		606
		607	GvSV (PL_defgv) = NEWSV (0, 0);
		608	GvAV (PL_defgv) = coro->args; coro->args = 0;
		609	GvSV (PL_errgv) = NEWSV (0, 0);
		610	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		611	PL_rs = newSVsv (GvSV (irsgv));
		612
		613	{
		614	IO *io = newIO ();
		615	PL_defoutgv = newGVgen ("Coro");
		616	GvIOp(PL_defoutgv) = io;
		617	IoTYPE (io) = IoTYPE_WRONLY;
		618	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		619	IoFLAGS (io) \|= IOf_FLUSH;
		620	}
547		621
548	{	622	{
549	dSP;	623	dSP;
550	LOGOP myop;	624	LOGOP myop;
551		625
552	SvREFCNT_dec (GvAV (PL_defgv));
553	GvAV (PL_defgv) = coro->args; coro->args = 0;
554
555	Zero (&myop, 1, LOGOP);	626	Zero (&myop, 1, LOGOP);
556	myop.op_next = Nullop;	627	myop.op_next = Nullop;
557	myop.op_flags = OPf_WANT_VOID;	628	myop.op_flags = OPf_WANT_VOID;
558		629
559	PUSHMARK (SP);	630	PUSHMARK (SP);
560	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	631	XPUSHs (av_shift (GvAV (PL_defgv)));
561	PUTBACK;	632	PUTBACK;
562	PL_op = (OP *)&myop;	633	PL_op = (OP *)&myop;
563	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	634	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
564	SPAGAIN;	635	SPAGAIN;
565	}	636	}
566		637
567	ENTER; /* necessary e.g. for dounwind */	638	ENTER; /* necessary e.g. for dounwind */
568	}	639	}
569		640
570	static void	641	static void
		642	coro_destroy (pTHX_ struct coro *coro)
		643	{
		644	if (!IN_DESTRUCT)
		645	{
		646	/* restore all saved variables and stuff */
		647	LEAVE_SCOPE (0);
		648	assert (PL_tmps_floor == -1);
		649
		650	/* free all temporaries */
		651	FREETMPS;
		652	assert (PL_tmps_ix == -1);
		653
		654	/* unwind all extra stacks */
		655	POPSTACK_TO (PL_mainstack);
		656
		657	/* unwind main stack */
		658	dounwind (-1);
		659	}
		660
		661	SvREFCNT_dec (GvSV (PL_defgv));
		662	SvREFCNT_dec (GvAV (PL_defgv));
		663	SvREFCNT_dec (GvSV (PL_errgv));
		664	SvREFCNT_dec (PL_defoutgv);
		665	SvREFCNT_dec (PL_rs);
		666	SvREFCNT_dec (GvSV (irsgv));
		667
		668	SvREFCNT_dec (coro->defoutgv);
		669	//SvREFCNT_dec (coro->throw);
		670
		671	coro_destroy_stacks (aTHX);
		672	}
		673
		674	static void
571	free_coro_mortal ()	675	free_coro_mortal (pTHX)
572	{	676	{
573	if (coro_mortal)	677	if (coro_mortal)
574	{	678	{
575	SvREFCNT_dec (coro_mortal);	679	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;	680	coro_mortal = 0;
577	}	681	}
578	}	682	}
579		683
		684	static int
		685	runops_trace (pTHX)
		686	{
		687	COP *oldcop = 0;
		688	int oldcxix = -2;
		689	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		690	coro_cctx *cctx = coro->cctx;
		691
		692	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		693	{
		694	PERL_ASYNC_CHECK ();
		695
		696	if (cctx->flags & CC_TRACE_ALL)
		697	{
		698	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		699	{
		700	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		701	SV bot, top;
		702	AV av = newAV (); / return values */
		703	SV **cb;
		704	dSP;
		705
		706	GV *gv = CvGV (cx->blk_sub.cv);
		707	SV *fullname = sv_2mortal (newSV (0));
		708	if (isGV (gv))
		709	gv_efullname3 (fullname, gv, 0);
		710
		711	bot = PL_stack_base + cx->blk_oldsp + 1;
		712	top = cx->blk_gimme == G_ARRAY ? SP + 1
		713	: cx->blk_gimme == G_SCALAR ? bot + 1
		714	: bot;
		715
		716	while (bot < top)
		717	av_push (av, SvREFCNT_inc (*bot++));
		718
		719	PL_runops = RUNOPS_DEFAULT;
		720	ENTER;
		721	SAVETMPS;
		722	EXTEND (SP, 3);
		723	PUSHMARK (SP);
		724	PUSHs (&PL_sv_no);
		725	PUSHs (fullname);
		726	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		727	PUTBACK;
		728	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		729	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		730	SPAGAIN;
		731	FREETMPS;
		732	LEAVE;
		733	PL_runops = runops_trace;
		734	}
		735
		736	if (oldcop != PL_curcop)
		737	{
		738	oldcop = PL_curcop;
		739
		740	if (PL_curcop != &PL_compiling)
		741	{
		742	SV **cb;
		743
		744	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		745	{
		746	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		747
		748	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		749	{
		750	runops_proc_t old_runops = PL_runops;
		751	dSP;
		752	GV *gv = CvGV (cx->blk_sub.cv);
		753	SV *fullname = sv_2mortal (newSV (0));
		754
		755	if (isGV (gv))
		756	gv_efullname3 (fullname, gv, 0);
		757
		758	PL_runops = RUNOPS_DEFAULT;
		759	ENTER;
		760	SAVETMPS;
		761	EXTEND (SP, 3);
		762	PUSHMARK (SP);
		763	PUSHs (&PL_sv_yes);
		764	PUSHs (fullname);
		765	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		766	PUTBACK;
		767	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		768	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		769	SPAGAIN;
		770	FREETMPS;
		771	LEAVE;
		772	PL_runops = runops_trace;
		773	}
		774
		775	oldcxix = cxstack_ix;
		776	}
		777
		778	if (cctx->flags & CC_TRACE_LINE)
		779	{
		780	dSP;
		781
		782	PL_runops = RUNOPS_DEFAULT;
		783	ENTER;
		784	SAVETMPS;
		785	EXTEND (SP, 3);
		786	PL_runops = RUNOPS_DEFAULT;
		787	PUSHMARK (SP);
		788	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		789	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		790	PUTBACK;
		791	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		792	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		793	SPAGAIN;
		794	FREETMPS;
		795	LEAVE;
		796	PL_runops = runops_trace;
		797	}
		798	}
		799	}
		800	}
		801	}
		802
		803	TAINT_NOT;
		804	return 0;
		805	}
		806
580	/* inject a fake call to Coro::State::_cctx_init into the execution */	807	/* inject a fake call to Coro::State::_cctx_init into the execution */
		808	/* _cctx_init should be careful, as it could be called at almost any time */
		809	/* during execution of a perl program */
581	static void NOINLINE	810	static void NOINLINE
582	prepare_cctx (coro_cctx *cctx)	811	prepare_cctx (pTHX_ coro_cctx *cctx)
583	{	812	{
584	dSP;	813	dSP;
585	LOGOP myop;	814	LOGOP myop;
		815
		816	PL_top_env = &PL_start_env;
		817
		818	if (cctx->flags & CC_TRACE)
		819	PL_runops = runops_trace;
586		820
587	Zero (&myop, 1, LOGOP);	821	Zero (&myop, 1, LOGOP);
588	myop.op_next = PL_op;	822	myop.op_next = PL_op;
589	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	823	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
590		824
…		…
596	PL_op = (OP *)&myop;	830	PL_op = (OP *)&myop;
597	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	831	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
598	SPAGAIN;	832	SPAGAIN;
599	}	833	}
600		834
		835	/*
		836	* this is a _very_ stripped down perl interpreter ;)
		837	*/
601	static void	838	static void
602	coro_run (void *arg)	839	coro_run (void *arg)
603	{	840	{
		841	dTHX;
		842
604	/* coro_run is the alternative tail of transfer(), so unlock here. */	843	/* coro_run is the alternative tail of transfer(), so unlock here. */
605	UNLOCK;	844	UNLOCK;
606		845
607	/*	846	/* we now skip the entersub that lead to transfer() */
608	* this is a _very_ stripped down perl interpreter ;)	847	PL_op = PL_op->op_next;
609	*/
610	PL_top_env = &PL_start_env;
611		848
612	/* inject call to cctx_init */	849	/* inject a fake subroutine call to cctx_init */
613	prepare_cctx ((coro_cctx *)arg);	850	prepare_cctx (aTHX_ (coro_cctx *)arg);
614		851
615	/* somebody will hit me for both perl_run and PL_restartop */	852	/* somebody or something will hit me for both perl_run and PL_restartop */
616	PL_restartop = PL_op;	853	PL_restartop = PL_op;
617	perl_run (PL_curinterp);	854	perl_run (PL_curinterp);
618		855
619	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	856	/*
620	abort ();	857	* If perl-run returns we assume exit() was being called or the coro
		858	* fell off the end, which seems to be the only valid (non-bug)
		859	* reason for perl_run to return. We try to exit by jumping to the
		860	* bootstrap-time "top" top_env, as we cannot restore the "main"
		861	* coroutine as Coro has no such concept
		862	*/
		863	PL_top_env = main_top_env;
		864	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
621	}	865	}
622		866
623	static coro_cctx *	867	static coro_cctx *
624	cctx_new ()	868	cctx_new ()
625	{	869	{
626	coro_cctx *cctx;	870	coro_cctx *cctx;
		871	void *stack_start;
		872	size_t stack_size;
627		873
628	++cctx_count;	874	++cctx_count;
629		875
630	Newz (0, cctx, 1, coro_cctx);	876	Newz (0, cctx, 1, coro_cctx);
631		877
632	#if HAVE_MMAP	878	#if HAVE_MMAP
633		879
634	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	880	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
635	/* mmap supposedly does allocate-on-write for us */	881	/* 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);	882	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
637		883
638	if (cctx->sptr != (void *)-1)	884	if (cctx->sptr != (void *)-1)
639	{	885	{
640	# if STACKGUARD	886	# if CORO_STACKGUARD
641	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	887	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
642	# endif	888	# endif
643	REGISTER_STACK (
644	cctx,
645	STACKGUARD * PAGESIZE + (char *)cctx->sptr,	889	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
646	cctx->ssize + (char *)cctx->sptr	890	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
647	);	891	cctx->flags \|= CC_MAPPED;
648
649	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
650	}	892	}
651	else	893	else
652	#endif	894	#endif
653	{	895	{
654	cctx->ssize = -STACKSIZE * (long)sizeof (long);	896	cctx->ssize = coro_stacksize * (long)sizeof (long);
655	New (0, cctx->sptr, STACKSIZE, long);	897	New (0, cctx->sptr, coro_stacksize, long);
656		898
657	if (!cctx->sptr)	899	if (!cctx->sptr)
658	{	900	{
659	perror ("FATAL: unable to allocate stack for coroutine");	901	perror ("FATAL: unable to allocate stack for coroutine");
660	_exit (EXIT_FAILURE);	902	_exit (EXIT_FAILURE);
661	}	903	}
662		904
663	REGISTER_STACK (	905	stack_start = cctx->sptr;
664	cctx,	906	stack_size = cctx->ssize;
665	(char *)cctx->sptr,	907	}
666	(char *)cctx->sptr - cctx->ssize
667	);
668		908
		909	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
669	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize);	910	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
670	}
671		911
672	return cctx;	912	return cctx;
673	}	913	}
674		914
675	static void	915	static void
…		…
678	if (!cctx)	918	if (!cctx)
679	return;	919	return;
680		920
681	--cctx_count;	921	--cctx_count;
682		922
683	#if USE_VALGRIND	923	#if CORO_USE_VALGRIND
684	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	924	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
685	#endif	925	#endif
686		926
687	#if HAVE_MMAP	927	#if HAVE_MMAP
688	if (cctx->ssize > 0)	928	if (cctx->flags & CC_MAPPED)
689	munmap (cctx->sptr, cctx->ssize);	929	munmap (cctx->sptr, cctx->ssize);
690	else	930	else
691	#endif	931	#endif
692	Safefree (cctx->sptr);	932	Safefree (cctx->sptr);
693		933
694	Safefree (cctx);	934	Safefree (cctx);
695	}	935	}
696		936
697	static coro_cctx *	937	static coro_cctx *
698	cctx_get ()	938	cctx_get (pTHX)
699	{	939	{
700	coro_cctx *cctx;
701
702	if (cctx_first)	940	while (cctx_first)
703	{	941	{
704	cctx = cctx_first;	942	coro_cctx *cctx = cctx_first;
705	cctx_first = cctx->next;	943	cctx_first = cctx->next;
706	--cctx_idle;	944	--cctx_idle;
707	}	945
708	else	946	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
709	{	947	return cctx;
710	cctx = cctx_new ();	948
711	PL_op = PL_op->op_next;	949	cctx_destroy (cctx);
712	}	950	}
713		951
714	return cctx;	952	return cctx_new ();
715	}	953	}
716		954
717	static void	955	static void
718	cctx_put (coro_cctx *cctx)	956	cctx_put (coro_cctx *cctx)
719	{	957	{
…		…
722	{	960	{
723	coro_cctx *first = cctx_first;	961	coro_cctx *first = cctx_first;
724	cctx_first = first->next;	962	cctx_first = first->next;
725	--cctx_idle;	963	--cctx_idle;
726		964
727	assert (!first->inuse);
728	cctx_destroy (first);	965	cctx_destroy (first);
729	}	966	}
730		967
731	++cctx_idle;	968	++cctx_idle;
732	cctx->next = cctx_first;	969	cctx->next = cctx_first;
733	cctx_first = cctx;	970	cctx_first = cctx;
734	}	971	}
735		972
736	/ coroutine switching ***************************************************/	973	/ coroutine switching ***************************************************/
737		974
738	/* never call directly, always through the coro_state_transfer global variable */
739	static void NOINLINE	975	static void NOINLINE
		976	transfer_check (pTHX_ struct coro prev, struct coro next)
		977	{
		978	if (prev != next)
		979	{
		980	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))
		981	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		982
		983	if (next->flags & CF_RUNNING)
		984	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		985
		986	if (next->flags & CF_DESTROYED)
		987	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		988
		989	if (PL_lex_state != LEX_NOTPARSING)
		990	croak ("Coro::State::transfer called while parsing, but this is not supported");
		991	}
		992	}
		993
		994	/* always use the TRANSFER macro */
		995	static void NOINLINE
740	transfer (struct coro prev, struct coro next)	996	transfer (pTHX_ struct coro prev, struct coro next)
741	{	997	{
742	dSTACKLEVEL;	998	dSTACKLEVEL;
743		999
744	/* sometimes transfer is only called to set idle_sp */	1000	/* sometimes transfer is only called to set idle_sp */
745	if (!next)	1001	if (!next)
…		…
753		1009
754	if (prev->flags & CF_NEW)	1010	if (prev->flags & CF_NEW)
755	{	1011	{
756	/* create a new empty context */	1012	/* create a new empty context */
757	Newz (0, prev->cctx, 1, coro_cctx);	1013	Newz (0, prev->cctx, 1, coro_cctx);
758	prev->cctx->inuse = 1;
759	prev->flags &= ~CF_NEW;	1014	prev->flags &= ~CF_NEW;
760	prev->flags \|= CF_RUNNING;	1015	prev->flags \|= CF_RUNNING;
761	}	1016	}
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		1017
773	prev->flags &= ~CF_RUNNING;	1018	prev->flags &= ~CF_RUNNING;
774	next->flags \|= CF_RUNNING;	1019	next->flags \|= CF_RUNNING;
775		1020
776	LOCK;	1021	LOCK;
…		…
778	if (next->flags & CF_NEW)	1023	if (next->flags & CF_NEW)
779	{	1024	{
780	/* need to start coroutine */	1025	/* need to start coroutine */
781	next->flags &= ~CF_NEW;	1026	next->flags &= ~CF_NEW;
782	/* first get rid of the old state */	1027	/* first get rid of the old state */
783	save_perl (prev);	1028	save_perl (aTHX_ prev);
784	/* setup coroutine call */	1029	/* setup coroutine call */
785	setup_coro (next);	1030	coro_setup (aTHX_ next);
786	/* need a new stack */
787	assert (!next->cctx);
788	}	1031	}
789	else	1032	else
790	{	1033	{
791	/* coroutine already started */	1034	/* coroutine already started */
792	save_perl (prev);	1035	save_perl (aTHX_ prev);
793	load_perl (next);	1036	load_perl (aTHX_ next);
794	}	1037	}
795		1038
796	prev__cctx = prev->cctx;	1039	prev__cctx = prev->cctx;
797		1040
798	/* possibly "free" the cctx */	1041	/* possibly "free" the cctx */
799	if (prev__cctx->idle_sp == STACKLEVEL)	1042	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
800	{	1043	{
801	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1044	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
802	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1045	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
803		1046
804	prev->cctx = 0;	1047	prev->cctx = 0;
805		1048
806	cctx_put (prev__cctx);	1049	cctx_put (prev__cctx);
807	prev__cctx->inuse = 0;
808	}	1050	}
809		1051
		1052	++next->usecount;
		1053
810	if (!next->cctx)	1054	if (!next->cctx)
811	{
812	next->cctx = cctx_get ();	1055	next->cctx = cctx_get (aTHX);
813	assert (!next->cctx->inuse);
814	next->cctx->inuse = 1;
815	}
816		1056
817	if (prev__cctx != next->cctx)	1057	if (prev__cctx != next->cctx)
818	{	1058	{
819	prev__cctx->top_env = PL_top_env;	1059	prev__cctx->top_env = PL_top_env;
820	PL_top_env = next->cctx->top_env;	1060	PL_top_env = next->cctx->top_env;
821	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1061	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
822	}	1062	}
823		1063
824	free_coro_mortal ();	1064	free_coro_mortal (aTHX);
825	UNLOCK;	1065	UNLOCK;
826	}	1066	}
827	}	1067	}
828		1068
829	struct transfer_args	1069	struct transfer_args
830	{	1070	{
831	struct coro prev, next;	1071	struct coro prev, next;
832	};	1072	};
833		1073
834	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1074	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1075	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
835		1076
836	/ high level stuff ******************************************************/	1077	/ high level stuff ******************************************************/
837		1078
838	static int	1079	static int
839	coro_state_destroy (struct coro *coro)	1080	coro_state_destroy (pTHX_ struct coro *coro)
840	{	1081	{
841	if (coro->flags & CF_DESTROYED)	1082	if (coro->flags & CF_DESTROYED)
842	return 0;	1083	return 0;
843		1084
844	coro->flags \|= CF_DESTROYED;	1085	coro->flags \|= CF_DESTROYED;
…		…
856		1097
857	if (coro->mainstack && coro->mainstack != main_mainstack)	1098	if (coro->mainstack && coro->mainstack != main_mainstack)
858	{	1099	{
859	struct coro temp;	1100	struct coro temp;
860		1101
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)	1102	if (coro->flags & CF_RUNNING)
867	croak ("FATAL: tried to destroy currently running coroutine");	1103	croak ("FATAL: tried to destroy currently running coroutine");
868		1104
869	save_perl (&temp);	1105	save_perl (aTHX_ &temp);
870	load_perl (coro);	1106	load_perl (aTHX_ coro);
871		1107
872	coro_destroy_stacks ();	1108	coro_destroy (aTHX_ coro);
873		1109
874	load_perl (&temp); /* this will get rid of defsv etc.. */	1110	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
875		1111
876	coro->mainstack = 0;	1112	coro->mainstack = 0;
877	}	1113	}
878		1114
879	cctx_destroy (coro->cctx);	1115	cctx_destroy (coro->cctx);
880	SvREFCNT_dec (coro->args);	1116	SvREFCNT_dec (coro->args);
881		1117
		1118	if (coro->next) coro->next->prev = coro->prev;
		1119	if (coro->prev) coro->prev->next = coro->next;
		1120	if (coro == coro_first) coro_first = coro->next;
		1121
882	return 1;	1122	return 1;
883	}	1123	}
884		1124
885	static int	1125	static int
886	coro_state_free (pTHX_ SV sv, MAGIC mg)	1126	coro_state_free (pTHX_ SV sv, MAGIC mg)
887	{	1127	{
888	struct coro coro = (struct coro )mg->mg_ptr;	1128	struct coro coro = (struct coro )mg->mg_ptr;
889	mg->mg_ptr = 0;	1129	mg->mg_ptr = 0;
890		1130
		1131	coro->hv = 0;
		1132
891	if (--coro->refcnt < 0)	1133	if (--coro->refcnt < 0)
892	{	1134	{
893	coro_state_destroy (coro);	1135	coro_state_destroy (aTHX_ coro);
894	Safefree (coro);	1136	Safefree (coro);
895	}	1137	}
896		1138
897	return 0;	1139	return 0;
898	}	1140	}
…		…
916	#else	1158	#else
917	# define MGf_DUP 0	1159	# define MGf_DUP 0
918	#endif	1160	#endif
919	};	1161	};
920		1162
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	1163	static void
944	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1164	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
945	{	1165	{
946	ta->prev = SvSTATE (prev_sv);	1166	ta->prev = SvSTATE (prev_sv);
947	ta->next = SvSTATE (next_sv);	1167	ta->next = SvSTATE (next_sv);
		1168	TRANSFER_CHECK (*ta);
948	}	1169	}
949		1170
950	static void	1171	static void
951	api_transfer (SV prev_sv, SV next_sv)	1172	api_transfer (SV prev_sv, SV next_sv)
952	{	1173	{
		1174	dTHX;
953	struct transfer_args ta;	1175	struct transfer_args ta;
954		1176
955	prepare_transfer (&ta, prev_sv, next_sv);	1177	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
956	TRANSFER (ta);	1178	TRANSFER (ta);
957	}	1179	}
958		1180
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 ******************************************************************/	1181	/ Coro ******************************************************************/
972		1182
973	static void	1183	static void
974	coro_enq (SV *coro_sv)	1184	coro_enq (pTHX_ SV *coro_sv)
975	{	1185	{
976	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1186	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
977	}	1187	}
978		1188
979	static SV *	1189	static SV *
980	coro_deq (int min_prio)	1190	coro_deq (pTHX_ int min_prio)
981	{	1191	{
982	int prio = PRIO_MAX - PRIO_MIN;	1192	int prio = PRIO_MAX - PRIO_MIN;
983		1193
984	min_prio -= PRIO_MIN;	1194	min_prio -= PRIO_MIN;
985	if (min_prio < 0)	1195	if (min_prio < 0)
…		…
993	}	1203	}
994		1204
995	static int	1205	static int
996	api_ready (SV *coro_sv)	1206	api_ready (SV *coro_sv)
997	{	1207	{
		1208	dTHX;
998	struct coro *coro;	1209	struct coro *coro;
999		1210
1000	if (SvROK (coro_sv))	1211	if (SvROK (coro_sv))
1001	coro_sv = SvRV (coro_sv);	1212	coro_sv = SvRV (coro_sv);
1002		1213
…		…
1006	return 0;	1217	return 0;
1007		1218
1008	coro->flags \|= CF_READY;	1219	coro->flags \|= CF_READY;
1009		1220
1010	LOCK;	1221	LOCK;
1011	coro_enq (SvREFCNT_inc (coro_sv));	1222	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1012	++coro_nready;	1223	++coro_nready;
1013	UNLOCK;	1224	UNLOCK;
1014		1225
1015	return 1;	1226	return 1;
1016	}	1227	}
1017		1228
1018	static int	1229	static int
1019	api_is_ready (SV *coro_sv)	1230	api_is_ready (SV *coro_sv)
1020	{	1231	{
		1232	dTHX;
1021	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1233	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1022	}	1234	}
1023		1235
1024	static void	1236	static void
1025	prepare_schedule (struct transfer_args *ta)	1237	prepare_schedule (pTHX_ struct transfer_args *ta)
1026	{	1238	{
1027	SV prev_sv, next_sv;	1239	SV prev_sv, next_sv;
1028		1240
1029	for (;;)	1241	for (;;)
1030	{	1242	{
1031	LOCK;	1243	LOCK;
1032	next_sv = coro_deq (PRIO_MIN);	1244	next_sv = coro_deq (aTHX_ PRIO_MIN);
1033		1245
1034	/* nothing to schedule: call the idle handler */	1246	/* nothing to schedule: call the idle handler */
1035	if (!next_sv)	1247	if (!next_sv)
1036	{	1248	{
1037	dSP;	1249	dSP;
…		…
1065	break;	1277	break;
1066	}	1278	}
1067		1279
1068	/* free this only after the transfer */	1280	/* free this only after the transfer */
1069	prev_sv = SvRV (coro_current);	1281	prev_sv = SvRV (coro_current);
1070	SvRV_set (coro_current, next_sv);
1071	ta->prev = SvSTATE (prev_sv);	1282	ta->prev = SvSTATE (prev_sv);
1072		1283	TRANSFER_CHECK (*ta);
1073	assert (ta->next->flags & CF_READY);	1284	assert (ta->next->flags & CF_READY);
1074	ta->next->flags &= ~CF_READY;	1285	ta->next->flags &= ~CF_READY;
		1286	SvRV_set (coro_current, next_sv);
1075		1287
1076	LOCK;	1288	LOCK;
1077	free_coro_mortal ();	1289	free_coro_mortal (aTHX);
1078	coro_mortal = prev_sv;	1290	coro_mortal = prev_sv;
1079	UNLOCK;	1291	UNLOCK;
1080	}	1292	}
1081		1293
1082	static void	1294	static void
1083	prepare_cede (struct transfer_args *ta)	1295	prepare_cede (pTHX_ struct transfer_args *ta)
1084	{	1296	{
1085	api_ready (coro_current);	1297	api_ready (coro_current);
1086	prepare_schedule (ta);	1298	prepare_schedule (aTHX_ ta);
1087	}	1299	}
1088		1300
1089	static int	1301	static int
1090	prepare_cede_notself (struct transfer_args *ta)	1302	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1091	{	1303	{
1092	if (coro_nready)	1304	if (coro_nready)
1093	{	1305	{
1094	SV *prev = SvRV (coro_current);	1306	SV *prev = SvRV (coro_current);
1095	prepare_schedule (ta);	1307	prepare_schedule (aTHX_ ta);
1096	api_ready (prev);	1308	api_ready (prev);
1097	return 1;	1309	return 1;
1098	}	1310	}
1099	else	1311	else
1100	return 0;	1312	return 0;
1101	}	1313	}
1102		1314
1103	static void	1315	static void
1104	api_schedule (void)	1316	api_schedule (void)
1105	{	1317	{
		1318	dTHX;
1106	struct transfer_args ta;	1319	struct transfer_args ta;
1107		1320
1108	prepare_schedule (&ta);	1321	prepare_schedule (aTHX_ &ta);
1109	TRANSFER (ta);	1322	TRANSFER (ta);
1110	}	1323	}
1111		1324
1112	static int	1325	static int
1113	api_cede (void)	1326	api_cede (void)
1114	{	1327	{
		1328	dTHX;
1115	struct transfer_args ta;	1329	struct transfer_args ta;
1116		1330
1117	prepare_cede (&ta);	1331	prepare_cede (aTHX_ &ta);
1118		1332
1119	if (ta.prev != ta.next)	1333	if (ta.prev != ta.next)
1120	{	1334	{
1121	TRANSFER (ta);	1335	TRANSFER (ta);
1122	return 1;	1336	return 1;
…		…
1126	}	1340	}
1127		1341
1128	static int	1342	static int
1129	api_cede_notself (void)	1343	api_cede_notself (void)
1130	{	1344	{
		1345	dTHX;
1131	struct transfer_args ta;	1346	struct transfer_args ta;
1132		1347
1133	if (prepare_cede_notself (&ta))	1348	if (prepare_cede_notself (aTHX_ &ta))
1134	{	1349	{
1135	TRANSFER (ta);	1350	TRANSFER (ta);
1136	return 1;	1351	return 1;
1137	}	1352	}
1138	else	1353	else
1139	return 0;	1354	return 0;
1140	}	1355	}
1141		1356
		1357	static void
		1358	api_trace (SV *coro_sv, int flags)
		1359	{
		1360	dTHX;
		1361	struct coro *coro = SvSTATE (coro_sv);
		1362
		1363	if (flags & CC_TRACE)
		1364	{
		1365	if (!coro->cctx)
		1366	coro->cctx = cctx_new ();
		1367	else if (!(coro->cctx->flags & CC_TRACE))
		1368	croak ("cannot enable tracing on coroutine with custom stack");
		1369
		1370	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1371	}
		1372	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1373	{
		1374	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1375
		1376	if (coro->flags & CF_RUNNING)
		1377	PL_runops = RUNOPS_DEFAULT;
		1378	else
		1379	coro->runops = RUNOPS_DEFAULT;
		1380	}
		1381	}
		1382
1142	MODULE = Coro::State PACKAGE = Coro::State	1383	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1143		1384
1144	PROTOTYPES: DISABLE	1385	PROTOTYPES: DISABLE
1145		1386
1146	BOOT:	1387	BOOT:
1147	{	1388	{
1148	#ifdef USE_ITHREADS	1389	#ifdef USE_ITHREADS
1149	MUTEX_INIT (&coro_mutex);	1390	MUTEX_INIT (&coro_mutex);
1150	#endif	1391	#endif
1151	BOOT_PAGESIZE;	1392	BOOT_PAGESIZE;
1152		1393
		1394	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1395
1153	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1154		1397
		1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1155	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1400	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));	1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1160		1402
1161	main_mainstack = PL_mainstack;	1403	main_mainstack = PL_mainstack;
		1404	main_top_env = PL_top_env;
		1405
		1406	while (main_top_env->je_prev)
		1407	main_top_env = main_top_env->je_prev;
1162		1408
1163	coroapi.ver = CORO_API_VERSION;	1409	coroapi.ver = CORO_API_VERSION;
1164	coroapi.transfer = api_transfer;	1410	coroapi.transfer = api_transfer;
1165		1411
1166	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1412	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1173	struct coro *coro;	1419	struct coro *coro;
1174	HV *hv;	1420	HV *hv;
1175	int i;	1421	int i;
1176		1422
1177	Newz (0, coro, 1, struct coro);	1423	Newz (0, coro, 1, struct coro);
1178	coro->args = newAV ();	1424	coro->args = newAV ();
1179	coro->save = CORO_SAVE_ALL;
1180	coro->flags = CF_NEW;	1425	coro->flags = CF_NEW;
1181		1426
		1427	if (coro_first) coro_first->prev = coro;
		1428	coro->next = coro_first;
		1429	coro_first = coro;
		1430
1182	hv = newHV ();	1431	coro->hv = hv = newHV ();
1183	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1432	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1184	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1433	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1185		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	coro->defoutgv = SvREFCNT_inc (PL_defoutgv);
		1726
		1727	if (!invoke)
		1728	croak ("\3terminate\2\n");
		1729
		1730	hv_store (hv, "desc", sizeof ("desc") - 1,
		1731	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1732
		1733	invoke_av = (AV *)SvRV (invoke);
		1734	len = av_len (invoke_av);
		1735
		1736	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1737
		1738	if (len > 0)
		1739	{
		1740	av_fill (defav, len - 1);
		1741	for (i = 0; i < len; ++i)
		1742	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1743	}
		1744
		1745
		1746
		1747	SvREFCNT_dec (invoke);
		1748	}
		1749
		1750	void
		1751	_pool_2 (SV *cb)
		1752	CODE:
		1753	{
		1754	struct coro *coro = SvSTATE (coro_current);
		1755
		1756	sv_setsv (cb, &PL_sv_undef);
		1757
		1758	SvREFCNT_dec (PL_defoutgv); PL_defoutgv = coro->defoutgv;
		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 1.181 by root, Wed Oct 3 17:37:33 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 1.181 by root, Wed Oct 3 17:37:33 2007 UTC