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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC vs.
Revision 1.239 by root, Sat Jun 28 23:14:19 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15
		16	#ifdef WIN32
		17	# undef setjmp
		18	# undef longjmp
		19	# undef _exit
		20	# define setjmp _setjmp // deep magic, don't ask
		21	#else
		22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
14		24
15	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
16	# include <unistd.h>	26	# include <unistd.h>
17	# include <sys/mman.h>	27	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
70	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
72	# endif	82	# endif
73	#endif	83	#endif
74		84
		85	/* 5.8.8 */
		86	#ifndef GV_NOTQUAL
		87	# define GV_NOTQUAL 0
		88	#endif
		89	#ifndef newSV
		90	# define newSV(l) NEWSV(0,l)
		91	#endif
		92
		93	/* 5.11 */
		94	#ifndef CxHASARGS
		95	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		96	#endif
		97
75	/* 5.8.7 */	98	/* 5.8.7 */
76	#ifndef SvRV_set	99	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	101	#endif
79		102
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	121	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		122
100	#if __GNUC__ >= 3	123	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	124	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	125	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		126	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	127	#else
104	# define attribute(x)	128	# define attribute(x)
105	# define BARRIER	129	# define BARRIER
		130	# define expect(expr,value) (expr)
106	#endif	131	#endif
		132
		133	#define expect_false(expr) expect ((expr) != 0, 0)
		134	#define expect_true(expr) expect ((expr) != 0, 1)
107		135
108	#define NOINLINE attribute ((noinline))	136	#define NOINLINE attribute ((noinline))
109		137
110	#include "CoroAPI.h"	138	#include "CoroAPI.h"
111		139
…		…
130	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
131	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
132	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
		164
		165	static GV irsgv; / $/ */
		166	static GV stdoutgv; / STDOUT /
		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
		169	static HV hv_sig; / %SIG */
136		170
137	/* async_pool helper stuff */	171	/* async_pool helper stuff */
138	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
139	static SV *sv_pool_size;	173	static SV *sv_pool_size;
140	static AV *av_async_pool;	174	static AV *av_async_pool;
141		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
		178
142	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
143	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
		181
		182	enum {
		183	CC_MAPPED = 0x01,
		184	CC_NOREUSE = 0x02, /* throw this away after tracing */
		185	CC_TRACE = 0x04,
		186	CC_TRACE_SUB = 0x08, /* trace sub calls */
		187	CC_TRACE_LINE = 0x10, /* trace each statement */
		188	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		189	};
144		190
145	/* this is a structure representing a c-level coroutine */	191	/* this is a structure representing a c-level coroutine */
146	typedef struct coro_cctx {	192	typedef struct coro_cctx {
147	struct coro_cctx *next;	193	struct coro_cctx *next;
148		194
…		…
157	coro_context cctx;	203	coro_context cctx;
158		204
159	#if CORO_USE_VALGRIND	205	#if CORO_USE_VALGRIND
160	int valgrind_id;	206	int valgrind_id;
161	#endif	207	#endif
162	char inuse, mapped;	208	unsigned char flags;
163	} coro_cctx;	209	} coro_cctx;
164		210
165	enum {	211	enum {
166	CF_RUNNING = 0x0001, /* coroutine is running */	212	CF_RUNNING = 0x0001, /* coroutine is running */
167	CF_READY = 0x0002, /* coroutine is ready */	213	CF_READY = 0x0002, /* coroutine is ready */
168	CF_NEW = 0x0004, /* has never been switched to */	214	CF_NEW = 0x0004, /* has never been switched to */
169	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	215	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
170	};	216	};
171		217
		218	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		219	typedef struct {
		220	SV *defsv;
		221	AV *defav;
		222	SV *errsv;
		223	SV *irsgv;
		224	#define VAR(name,type) type name;
		225	# include "state.h"
		226	#undef VAR
		227	} perl_slots;
		228
		229	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		230
172	/* this is a structure representing a perl-level coroutine */	231	/* this is a structure representing a perl-level coroutine */
173	struct coro {	232	struct coro {
174	/* the c coroutine allocated to this perl coroutine, if any */	233	/* the c coroutine allocated to this perl coroutine, if any */
175	coro_cctx *cctx;	234	coro_cctx *cctx;
176		235
		236	/* process data */
		237	AV *mainstack;
		238	perl_slots slot; / basically the saved sp */
		239
177	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
178	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
179	int refcnt;
180	int save; /* CORO_SAVE flags */
181	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
		243	HV hv; / the perl hash associated with this coro, if any */
182		244
183	/* optionally saved, might be zero */	245	/* statistics */
184	AV defav; / @_ */	246	int usecount; /* number of transfers to this coro */
185	SV defsv; / $_ */
186	SV errsv; / $@ */
187	GV deffh; / default filehandle */
188	SV irssv; / $/ */
189	SV irssv_sv; / real $/ cache */
190
191	#define VAR(name,type) type name;
192	# include "state.h"
193	#undef VAR
194		247
195	/* coro process data */	248	/* coro process data */
196	int prio;	249	int prio;
		250	SV throw; / exception to be thrown */
		251
		252	/* async_pool */
		253	SV *saved_deffh;
197		254
198	/* linked list */	255	/* linked list */
199	struct coro next, prev;	256	struct coro next, prev;
200	HV hv; / the perl hash associated with this coro, if any */
201	};	257	};
202		258
203	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
204	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
205		261
…		…
212	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
213	#define PRIO_MIN -4	269	#define PRIO_MIN -4
214		270
215	/* for Coro.pm */	271	/* for Coro.pm */
216	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
217	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
218	static int coro_nready;	275	static int coro_nready;
219	static struct coro *coro_first;	276	static struct coro *coro_first;
220		277
221	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
222		279
		280	static SV *
		281	coro_get_sv (pTHX_ const char *name, int create)
		282	{
		283	#if PERL_VERSION_ATLEAST (5,10,0)
		284	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		285	get_sv (name, create);
		286	#endif
		287	return get_sv (name, create);
		288	}
		289
		290	static AV *
		291	coro_get_av (pTHX_ const char *name, int create)
		292	{
		293	#if PERL_VERSION_ATLEAST (5,10,0)
		294	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		295	get_av (name, create);
		296	#endif
		297	return get_av (name, create);
		298	}
		299
		300	static HV *
		301	coro_get_hv (pTHX_ const char *name, int create)
		302	{
		303	#if PERL_VERSION_ATLEAST (5,10,0)
		304	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		305	get_hv (name, create);
		306	#endif
		307	return get_hv (name, create);
		308	}
		309
223	static AV *	310	static AV *
224	coro_clone_padlist (pTHX_ CV *cv)	311	coro_clone_padlist (pTHX_ CV *cv)
225	{	312	{
226	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
227	AV newpadlist, newpad;	314	AV newpadlist, newpad;
228		315
229	newpadlist = newAV ();	316	newpadlist = newAV ();
230	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
231	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
232	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
233	#else	320	#else
234	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
235	#endif	322	#endif
236	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
274		361
275	/* casting is fun. */	362	/* casting is fun. */
276	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
277	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
278		365
279	SvREFCNT_dec (av);
280
281	return 0;	366	return 0;
282	}	367	}
283		368
284	#define PERL_MAGIC_coro PERL_MAGIC_ext	369	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		370	#define CORO_MAGIC_type_state PERL_MAGIC_ext
285		371
286	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	372	static MGVTBL coro_cv_vtbl = {
		373	0, 0, 0, 0,
		374	coro_cv_free
		375	};
287		376
288	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
289	SvMAGIC (cv) \	378	SvMAGIC (sv) \
290	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
291	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
292	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
293	: 0	382	: 0
		383
		384	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		385	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
		386
		387	static struct coro *
		388	SvSTATE_ (pTHX_ SV *coro)
		389	{
		390	HV *stash;
		391	MAGIC *mg;
		392
		393	if (SvROK (coro))
		394	coro = SvRV (coro);
		395
		396	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		397	croak ("Coro::State object required");
		398
		399	stash = SvSTASH (coro);
		400	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		401	{
		402	/* very slow, but rare, check */
		403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		404	croak ("Coro::State object required");
		405	}
		406
		407	mg = CORO_MAGIC_state (coro);
		408	return (struct coro *)mg->mg_ptr;
		409	}
		410
		411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
294		412
295	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
296	static void	414	static void
297	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
298	{	416	{
299	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
300	AV *av;	418	AV *av;
301		419
302	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
303	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
304	else	422	else
305	{	423	{
306	#if CORO_PREFER_PERL_FUNCTIONS	424	#if CORO_PREFER_PERL_FUNCTIONS
307	/* this is probably cleaner, but also slower? */	425	/* this is probably cleaner, but also slower? */
…		…
316	}	434	}
317		435
318	static void	436	static void
319	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
320	{	438	{
321	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
322	AV *av;	440	AV *av;
323		441
324	if (!mg)	442	if (expect_false (!mg))
325	{	443	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
326	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
327	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
328	mg->mg_virtual = &vtbl_coro;
329	mg->mg_obj = (SV *)newAV ();
330	}
331		444
332	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
333		446
334	if (AvFILLp (av) >= AvMAX (av))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
335	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
336		449
337	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	450	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
338	}	451	}
339		452
340	/ load & save, init *****************************************************/	453	/ load & save, init *****************************************************/
341
342	#define SB do {
343	#define SE } while (0)
344
345	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
346		454
347	static void	455	static void
348	load_perl (pTHX_ Coro__State c)	456	load_perl (pTHX_ Coro__State c)
349	{	457	{
		458	perl_slots *slot = c->slot;
		459	c->slot = 0;
		460
		461	PL_mainstack = c->mainstack;
		462
		463	GvSV (PL_defgv) = slot->defsv;
		464	GvAV (PL_defgv) = slot->defav;
		465	GvSV (PL_errgv) = slot->errsv;
		466	GvSV (irsgv) = slot->irsgv;
		467
350	#define VAR(name,type) PL_ ## name = c->name;	468	#define VAR(name,type) PL_ ## name = slot->name;
351	# include "state.h"	469	# include "state.h"
352	#undef VAR	470	#undef VAR
353
354	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
355	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
356	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
357	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
358
359	if (c->irssv)
360	{
361	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
362	{
363	SvREFCNT_dec (c->irssv);
364	c->irssv = 0;
365	}
366	else
367	{
368	REPLACE_SV (PL_rs, c->irssv);
369	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
370	sv_setsv (c->irssv_sv, PL_rs);
371	}
372	}
373		471
374	{	472	{
375	dSP;	473	dSP;
		474
376	CV *cv;	475	CV *cv;
377		476
378	/* now do the ugly restore mess */	477	/* now do the ugly restore mess */
379	while ((cv = (CV *)POPs))	478	while (expect_true (cv = (CV *)POPs))
380	{	479	{
381	put_padlist (aTHX_ cv); /* mark this padlist as available */	480	put_padlist (aTHX_ cv); /* mark this padlist as available */
382	CvDEPTH (cv) = PTR2IV (POPs);	481	CvDEPTH (cv) = PTR2IV (POPs);
383	CvPADLIST (cv) = (AV *)POPs;	482	CvPADLIST (cv) = (AV *)POPs;
384	}	483	}
…		…
403		502
404	XPUSHs (Nullsv);	503	XPUSHs (Nullsv);
405	/* this loop was inspired by pp_caller */	504	/* this loop was inspired by pp_caller */
406	for (;;)	505	for (;;)
407	{	506	{
408	while (cxix >= 0)	507	while (expect_true (cxix >= 0))
409	{	508	{
410	PERL_CONTEXT *cx = &ccstk[cxix--];	509	PERL_CONTEXT *cx = &ccstk[cxix--];
411		510
412	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	511	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
413	{	512	{
414	CV *cv = cx->blk_sub.cv;	513	CV *cv = cx->blk_sub.cv;
415		514
416	if (CvDEPTH (cv))	515	if (expect_true (CvDEPTH (cv)))
417	{	516	{
418	EXTEND (SP, 3);	517	EXTEND (SP, 3);
419	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
420	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
421	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
422		521
423	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
424	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
425	}	524	}
426	}	525	}
427	}	526	}
428		527
429	if (top_si->si_type == PERLSI_MAIN)	528	if (expect_true (top_si->si_type == PERLSI_MAIN))
430	break;	529	break;
431		530
432	top_si = top_si->si_prev;	531	top_si = top_si->si_prev;
433	ccstk = top_si->si_cxstack;	532	ccstk = top_si->si_cxstack;
434	cxix = top_si->si_cxix;	533	cxix = top_si->si_cxix;
435	}	534	}
436		535
437	PUTBACK;	536	PUTBACK;
438	}	537	}
439		538
440	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	539	/* allocate some space on the context stack for our purposes */
441	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	540	/* we manually unroll here, as usually 2 slots is enough */
442	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	541	if (SLOT_COUNT >= 1) CXINC;
443	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	542	if (SLOT_COUNT >= 2) CXINC;
444	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	543	if (SLOT_COUNT >= 3) CXINC;
		544	{
		545	int i;
		546	for (i = 3; i < SLOT_COUNT; ++i)
		547	CXINC;
		548	}
		549	cxstack_ix -= SLOT_COUNT; /* undo allocation */
445		550
		551	c->mainstack = PL_mainstack;
		552
		553	{
		554	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		555
		556	slot->defav = GvAV (PL_defgv);
		557	slot->defsv = DEFSV;
		558	slot->errsv = ERRSV;
		559	slot->irsgv = GvSV (irsgv);
		560
446	#define VAR(name,type)c->name = PL_ ## name;	561	#define VAR(name,type) slot->name = PL_ ## name;
447	# include "state.h"	562	# include "state.h"
448	#undef VAR	563	#undef VAR
		564	}
449	}	565	}
450		566
451	/*	567	/*
452	* allocate various perl stacks. This is an exact copy	568	* allocate various perl stacks. This is an exact copy
453	* of perl.c:init_stacks, except that it uses less memory	569	* of perl.c:init_stacks, except that it uses less memory
…		…
458	# define coro_init_stacks init_stacks	574	# define coro_init_stacks init_stacks
459	#else	575	#else
460	static void	576	static void
461	coro_init_stacks (pTHX)	577	coro_init_stacks (pTHX)
462	{	578	{
463	PL_curstackinfo = new_stackinfo(64, 6);	579	PL_curstackinfo = new_stackinfo(32, 8);
464	PL_curstackinfo->si_type = PERLSI_MAIN;	580	PL_curstackinfo->si_type = PERLSI_MAIN;
465	PL_curstack = PL_curstackinfo->si_stack;	581	PL_curstack = PL_curstackinfo->si_stack;
466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	582	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
467		583
468	PL_stack_base = AvARRAY(PL_curstack);	584	PL_stack_base = AvARRAY(PL_curstack);
469	PL_stack_sp = PL_stack_base;	585	PL_stack_sp = PL_stack_base;
470	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	586	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
471		587
472	New(50,PL_tmps_stack,64,SV*);	588	New(50,PL_tmps_stack,32,SV*);
473	PL_tmps_floor = -1;	589	PL_tmps_floor = -1;
474	PL_tmps_ix = -1;	590	PL_tmps_ix = -1;
475	PL_tmps_max = 64;	591	PL_tmps_max = 32;
476		592
477	New(54,PL_markstack,16,I32);	593	New(54,PL_markstack,16,I32);
478	PL_markstack_ptr = PL_markstack;	594	PL_markstack_ptr = PL_markstack;
479	PL_markstack_max = PL_markstack + 16;	595	PL_markstack_max = PL_markstack + 16;
480		596
481	#ifdef SET_MARK_OFFSET	597	#ifdef SET_MARK_OFFSET
482	SET_MARK_OFFSET;	598	SET_MARK_OFFSET;
483	#endif	599	#endif
484		600
485	New(54,PL_scopestack,16,I32);	601	New(54,PL_scopestack,8,I32);
486	PL_scopestack_ix = 0;	602	PL_scopestack_ix = 0;
487	PL_scopestack_max = 16;	603	PL_scopestack_max = 8;
488		604
489	New(54,PL_savestack,64,ANY);	605	New(54,PL_savestack,24,ANY);
490	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
491	PL_savestack_max = 64;	607	PL_savestack_max = 24;
492		608
493	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
494	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
495	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
496	PL_retstack_max = 4;	612	PL_retstack_max = 4;
497	#endif	613	#endif
498	}	614	}
…		…
502	* destroy the stacks, the callchain etc...	618	* destroy the stacks, the callchain etc...
503	*/	619	*/
504	static void	620	static void
505	coro_destroy_stacks (pTHX)	621	coro_destroy_stacks (pTHX)
506	{	622	{
507	if (!IN_DESTRUCT)
508	{
509	/* restore all saved variables and stuff */
510	LEAVE_SCOPE (0);
511	assert (PL_tmps_floor == -1);
512
513	/* free all temporaries */
514	FREETMPS;
515	assert (PL_tmps_ix == -1);
516
517	/* unwind all extra stacks */
518	POPSTACK_TO (PL_mainstack);
519
520	/* unwind main stack */
521	dounwind (-1);
522	}
523
524	while (PL_curstackinfo->si_next)	623	while (PL_curstackinfo->si_next)
525	PL_curstackinfo = PL_curstackinfo->si_next;	624	PL_curstackinfo = PL_curstackinfo->si_next;
526		625
527	while (PL_curstackinfo)	626	while (PL_curstackinfo)
528	{	627	{
…		…
538		637
539	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
540	Safefree (PL_markstack);	639	Safefree (PL_markstack);
541	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
542	Safefree (PL_savestack);	641	Safefree (PL_savestack);
543	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
544	Safefree (PL_retstack);	643	Safefree (PL_retstack);
545	#endif	644	#endif
546	}	645	}
547		646
548	static size_t	647	static size_t
549	coro_rss (struct coro *coro)	648	coro_rss (pTHX_ struct coro *coro)
550	{	649	{
551	size_t rss = sizeof (coro);	650	size_t rss = sizeof (*coro);
552		651
553	if (coro->mainstack)	652	if (coro->mainstack)
554	{	653	{
		654	perl_slots tmp_slot;
		655	perl_slots *slot;
		656
555	if (coro->flags & CF_RUNNING)	657	if (coro->flags & CF_RUNNING)
556	{	658	{
		659	slot = &tmp_slot;
		660
557	#define VAR(name,type)coro->name = PL_ ## name;	661	#define VAR(name,type) slot->name = PL_ ## name;
558	# include "state.h"	662	# include "state.h"
559	#undef VAR	663	#undef VAR
560	}	664	}
		665	else
		666	slot = coro->slot;
561		667
562	rss += sizeof (coro->curstackinfo);	668	rss += sizeof (slot->curstackinfo);
563	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
564	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	669	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
565	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	670	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
566	rss += coro->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
567	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
568	rss += coro->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
569	rss += coro->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
570		675
571	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
572	rss += coro->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
573	#endif	678	#endif
574	}	679	}
575		680
576	return rss;	681	return rss;
577	}	682	}
578		683
579	/ coroutine stack handling **********************************************/	684	/ coroutine stack handling **********************************************/
580		685
		686	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		687	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		688	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		689
		690	/* apparently < 5.8.8 */
		691	#undef MgPV_nolen_const
		692	#ifndef MgPV_nolen_const
		693	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		694	SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \
		695	(const char*)(mg)->mg_ptr)
		696	#endif
		697
		698	/*
		699	* This overrides the default magic get method of %SIG elements.
		700	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		701	* and instead of tryign to save and restore the hash elements, we just provide
		702	* readback here.
		703	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		704	* not expecting this to actually change the hook. This is a potential problem
		705	* when a schedule happens then, but we ignore this.
		706	*/
		707	static int
		708	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		709	{
		710	const char *s = MgPV_nolen_const (mg);
		711
		712	if (*s == '_')
		713	{
		714	SV **svp = 0;
		715
		716	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		717	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		718
		719	if (svp)
		720	{
		721	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		722	return 0;
		723	}
		724	}
		725
		726	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		727	}
		728
		729	static int
		730	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		731	{
		732	const char *s = MgPV_nolen_const (mg);
		733
		734	if (*s == '_')
		735	{
		736	SV **svp = 0;
		737
		738	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		739	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		740
		741	if (svp)
		742	{
		743	SV old = svp;
		744	*svp = 0;
		745	SvREFCNT_dec (old);
		746	return 0;
		747	}
		748	}
		749
		750	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		751	}
		752
		753	static int
		754	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		755	{
		756	const char *s = MgPV_nolen_const (mg);
		757
		758	if (*s == '_')
		759	{
		760	SV **svp = 0;
		761
		762	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		763	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		764
		765	if (svp)
		766	{
		767	SV old = svp;
		768	*svp = newSVsv (sv);
		769	SvREFCNT_dec (old);
		770	return 0;
		771	}
		772	}
		773
		774	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		775	}
		776
581	static void	777	static void
582	setup_coro (pTHX_ struct coro *coro)	778	coro_setup (pTHX_ struct coro *coro)
583	{	779	{
584	/*	780	/*
585	* emulate part of the perl startup here.	781	* emulate part of the perl startup here.
586	*/	782	*/
587	coro_init_stacks (aTHX);	783	coro_init_stacks (aTHX);
588		784
		785	PL_runops = RUNOPS_DEFAULT;
589	PL_curcop = &PL_compiling;	786	PL_curcop = &PL_compiling;
590	PL_in_eval = EVAL_NULL;	787	PL_in_eval = EVAL_NULL;
591	PL_comppad = 0;	788	PL_comppad = 0;
592	PL_curpm = 0;	789	PL_curpm = 0;
		790	PL_curpad = 0;
593	PL_localizing = 0;	791	PL_localizing = 0;
594	PL_dirty = 0;	792	PL_dirty = 0;
595	PL_restartop = 0;	793	PL_restartop = 0;
		794	#if PERL_VERSION_ATLEAST (5,10,0)
		795	PL_parser = 0;
		796	#endif
		797
		798	/* recreate the die/warn hooks */
		799	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		800	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
		801
		802	GvSV (PL_defgv) = newSV (0);
		803	GvAV (PL_defgv) = coro->args; coro->args = 0;
		804	GvSV (PL_errgv) = newSV (0);
		805	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		806	PL_rs = newSVsv (GvSV (irsgv));
		807	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
596		808
597	{	809	{
598	dSP;	810	dSP;
599	LOGOP myop;	811	LOGOP myop;
600		812
601	SvREFCNT_dec (GvAV (PL_defgv));
602	GvAV (PL_defgv) = coro->args; coro->args = 0;
603
604	Zero (&myop, 1, LOGOP);	813	Zero (&myop, 1, LOGOP);
605	myop.op_next = Nullop;	814	myop.op_next = Nullop;
606	myop.op_flags = OPf_WANT_VOID;	815	myop.op_flags = OPf_WANT_VOID;
607		816
608	PUSHMARK (SP);	817	PUSHMARK (SP);
609	XPUSHs (av_shift (GvAV (PL_defgv)));	818	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
610	PUTBACK;	819	PUTBACK;
611	PL_op = (OP *)&myop;	820	PL_op = (OP *)&myop;
612	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	821	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
613	SPAGAIN;	822	SPAGAIN;
614	}	823	}
615		824
616	ENTER; /* necessary e.g. for dounwind */	825	/* this newly created coroutine might be run on an existing cctx which most
		826	* likely was suspended in set_stacklevel, called from entersub.
		827	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		828	* so we ENTER here for symmetry
		829	*/
		830	ENTER;
		831	}
		832
		833	static void
		834	coro_destroy (pTHX_ struct coro *coro)
		835	{
		836	if (!IN_DESTRUCT)
		837	{
		838	/* restore all saved variables and stuff */
		839	LEAVE_SCOPE (0);
		840	assert (PL_tmps_floor == -1);
		841
		842	/* free all temporaries */
		843	FREETMPS;
		844	assert (PL_tmps_ix == -1);
		845
		846	/* unwind all extra stacks */
		847	POPSTACK_TO (PL_mainstack);
		848
		849	/* unwind main stack */
		850	dounwind (-1);
		851	}
		852
		853	SvREFCNT_dec (GvSV (PL_defgv));
		854	SvREFCNT_dec (GvAV (PL_defgv));
		855	SvREFCNT_dec (GvSV (PL_errgv));
		856	SvREFCNT_dec (PL_defoutgv);
		857	SvREFCNT_dec (PL_rs);
		858	SvREFCNT_dec (GvSV (irsgv));
		859
		860	SvREFCNT_dec (PL_diehook);
		861	SvREFCNT_dec (PL_warnhook);
		862
		863	SvREFCNT_dec (coro->saved_deffh);
		864	SvREFCNT_dec (coro->throw);
		865
		866	coro_destroy_stacks (aTHX);
617	}	867	}
618		868
619	static void	869	static void
620	free_coro_mortal (pTHX)	870	free_coro_mortal (pTHX)
621	{	871	{
622	if (coro_mortal)	872	if (expect_true (coro_mortal))
623	{	873	{
624	SvREFCNT_dec (coro_mortal);	874	SvREFCNT_dec (coro_mortal);
625	coro_mortal = 0;	875	coro_mortal = 0;
626	}	876	}
		877	}
		878
		879	static int
		880	runops_trace (pTHX)
		881	{
		882	COP *oldcop = 0;
		883	int oldcxix = -2;
		884	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		885	coro_cctx *cctx = coro->cctx;
		886
		887	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		888	{
		889	PERL_ASYNC_CHECK ();
		890
		891	if (cctx->flags & CC_TRACE_ALL)
		892	{
		893	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		894	{
		895	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		896	SV bot, top;
		897	AV av = newAV (); / return values */
		898	SV **cb;
		899	dSP;
		900
		901	GV *gv = CvGV (cx->blk_sub.cv);
		902	SV *fullname = sv_2mortal (newSV (0));
		903	if (isGV (gv))
		904	gv_efullname3 (fullname, gv, 0);
		905
		906	bot = PL_stack_base + cx->blk_oldsp + 1;
		907	top = cx->blk_gimme == G_ARRAY ? SP + 1
		908	: cx->blk_gimme == G_SCALAR ? bot + 1
		909	: bot;
		910
		911	av_extend (av, top - bot);
		912	while (bot < top)
		913	av_push (av, SvREFCNT_inc (*bot++));
		914
		915	PL_runops = RUNOPS_DEFAULT;
		916	ENTER;
		917	SAVETMPS;
		918	EXTEND (SP, 3);
		919	PUSHMARK (SP);
		920	PUSHs (&PL_sv_no);
		921	PUSHs (fullname);
		922	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		923	PUTBACK;
		924	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		925	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		926	SPAGAIN;
		927	FREETMPS;
		928	LEAVE;
		929	PL_runops = runops_trace;
		930	}
		931
		932	if (oldcop != PL_curcop)
		933	{
		934	oldcop = PL_curcop;
		935
		936	if (PL_curcop != &PL_compiling)
		937	{
		938	SV **cb;
		939
		940	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		941	{
		942	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		943
		944	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		945	{
		946	runops_proc_t old_runops = PL_runops;
		947	dSP;
		948	GV *gv = CvGV (cx->blk_sub.cv);
		949	SV *fullname = sv_2mortal (newSV (0));
		950
		951	if (isGV (gv))
		952	gv_efullname3 (fullname, gv, 0);
		953
		954	PL_runops = RUNOPS_DEFAULT;
		955	ENTER;
		956	SAVETMPS;
		957	EXTEND (SP, 3);
		958	PUSHMARK (SP);
		959	PUSHs (&PL_sv_yes);
		960	PUSHs (fullname);
		961	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		962	PUTBACK;
		963	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		964	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		965	SPAGAIN;
		966	FREETMPS;
		967	LEAVE;
		968	PL_runops = runops_trace;
		969	}
		970
		971	oldcxix = cxstack_ix;
		972	}
		973
		974	if (cctx->flags & CC_TRACE_LINE)
		975	{
		976	dSP;
		977
		978	PL_runops = RUNOPS_DEFAULT;
		979	ENTER;
		980	SAVETMPS;
		981	EXTEND (SP, 3);
		982	PL_runops = RUNOPS_DEFAULT;
		983	PUSHMARK (SP);
		984	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		985	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		986	PUTBACK;
		987	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		988	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		989	SPAGAIN;
		990	FREETMPS;
		991	LEAVE;
		992	PL_runops = runops_trace;
		993	}
		994	}
		995	}
		996	}
		997	}
		998
		999	TAINT_NOT;
		1000	return 0;
627	}	1001	}
628		1002
629	/* inject a fake call to Coro::State::_cctx_init into the execution */	1003	/* inject a fake call to Coro::State::_cctx_init into the execution */
630	/* _cctx_init should be careful, as it could be called at almost any time */	1004	/* _cctx_init should be careful, as it could be called at almost any time */
631	/* during execution of a perl program */	1005	/* during execution of a perl program */
632	static void NOINLINE	1006	static void NOINLINE
633	prepare_cctx (pTHX_ coro_cctx *cctx)	1007	cctx_prepare (pTHX_ coro_cctx *cctx)
634	{	1008	{
635	dSP;	1009	dSP;
636	LOGOP myop;	1010	LOGOP myop;
		1011
		1012	PL_top_env = &PL_start_env;
		1013
		1014	if (cctx->flags & CC_TRACE)
		1015	PL_runops = runops_trace;
637		1016
638	Zero (&myop, 1, LOGOP);	1017	Zero (&myop, 1, LOGOP);
639	myop.op_next = PL_op;	1018	myop.op_next = PL_op;
640	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1019	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
641		1020
…		…
651		1030
652	/*	1031	/*
653	* this is a _very_ stripped down perl interpreter ;)	1032	* this is a _very_ stripped down perl interpreter ;)
654	*/	1033	*/
655	static void	1034	static void
656	coro_run (void *arg)	1035	cctx_run (void *arg)
657	{	1036	{
658	dTHX;	1037	dTHX;
659		1038
660	/* coro_run is the alternative tail of transfer(), so unlock here. */	1039	/* cctx_run is the alternative tail of transfer(), so unlock here. */
661	UNLOCK;	1040	UNLOCK;
662		1041
663	PL_top_env = &PL_start_env;	1042	/* we now skip the entersub that lead to transfer() */
		1043	PL_op = PL_op->op_next;
664		1044
665	/* inject a fake subroutine call to cctx_init */	1045	/* inject a fake subroutine call to cctx_init */
666	prepare_cctx (aTHX_ (coro_cctx *)arg);	1046	cctx_prepare (aTHX_ (coro_cctx *)arg);
667		1047
668	/* somebody or something will hit me for both perl_run and PL_restartop */	1048	/* somebody or something will hit me for both perl_run and PL_restartop */
669	PL_restartop = PL_op;	1049	PL_restartop = PL_op;
670	perl_run (PL_curinterp);	1050	perl_run (PL_curinterp);
671		1051
…		…
690	++cctx_count;	1070	++cctx_count;
691		1071
692	Newz (0, cctx, 1, coro_cctx);	1072	Newz (0, cctx, 1, coro_cctx);
693		1073
694	#if HAVE_MMAP	1074	#if HAVE_MMAP
695
696	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1075	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
697	/* mmap supposedly does allocate-on-write for us */	1076	/* mmap supposedly does allocate-on-write for us */
698	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1077	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
699		1078
700	if (cctx->sptr != (void *)-1)	1079	if (cctx->sptr != (void *)-1)
…		…
702	# if CORO_STACKGUARD	1081	# if CORO_STACKGUARD
703	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1082	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
704	# endif	1083	# endif
705	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1084	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
706	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1085	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
707	cctx->mapped = 1;	1086	cctx->flags \|= CC_MAPPED;
708	}	1087	}
709	else	1088	else
710	#endif	1089	#endif
711	{	1090	{
712	cctx->ssize = coro_stacksize * (long)sizeof (long);	1091	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
721	stack_start = cctx->sptr;	1100	stack_start = cctx->sptr;
722	stack_size = cctx->ssize;	1101	stack_size = cctx->ssize;
723	}	1102	}
724		1103
725	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1104	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
726	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1105	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
727		1106
728	return cctx;	1107	return cctx;
729	}	1108	}
730		1109
731	static void	1110	static void
…		…
739	#if CORO_USE_VALGRIND	1118	#if CORO_USE_VALGRIND
740	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1119	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
741	#endif	1120	#endif
742		1121
743	#if HAVE_MMAP	1122	#if HAVE_MMAP
744	if (cctx->mapped)	1123	if (cctx->flags & CC_MAPPED)
745	munmap (cctx->sptr, cctx->ssize);	1124	munmap (cctx->sptr, cctx->ssize);
746	else	1125	else
747	#endif	1126	#endif
748	Safefree (cctx->sptr);	1127	Safefree (cctx->sptr);
749		1128
750	Safefree (cctx);	1129	Safefree (cctx);
751	}	1130	}
752		1131
		1132	/* wether this cctx should be destructed */
		1133	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1134
753	static coro_cctx *	1135	static coro_cctx *
754	cctx_get (pTHX)	1136	cctx_get (pTHX)
755	{	1137	{
756	while (cctx_first)	1138	while (expect_true (cctx_first))
757	{	1139	{
758	coro_cctx *cctx = cctx_first;	1140	coro_cctx *cctx = cctx_first;
759	cctx_first = cctx->next;	1141	cctx_first = cctx->next;
760	--cctx_idle;	1142	--cctx_idle;
761		1143
762	if (cctx->ssize >= coro_stacksize)	1144	if (expect_true (!CCTX_EXPIRED (cctx)))
763	return cctx;	1145	return cctx;
764		1146
765	cctx_destroy (cctx);	1147	cctx_destroy (cctx);
766	}	1148	}
767		1149
768	PL_op = PL_op->op_next;
769	return cctx_new ();	1150	return cctx_new ();
770	}	1151	}
771		1152
772	static void	1153	static void
773	cctx_put (coro_cctx *cctx)	1154	cctx_put (coro_cctx *cctx)
774	{	1155	{
775	/* free another cctx if overlimit */	1156	/* free another cctx if overlimit */
776	if (cctx_idle >= MAX_IDLE_CCTX)	1157	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
777	{	1158	{
778	coro_cctx *first = cctx_first;	1159	coro_cctx *first = cctx_first;
779	cctx_first = first->next;	1160	cctx_first = first->next;
780	--cctx_idle;	1161	--cctx_idle;
781		1162
782	assert (!first->inuse);
783	cctx_destroy (first);	1163	cctx_destroy (first);
784	}	1164	}
785		1165
786	++cctx_idle;	1166	++cctx_idle;
787	cctx->next = cctx_first;	1167	cctx->next = cctx_first;
788	cctx_first = cctx;	1168	cctx_first = cctx;
789	}	1169	}
790		1170
791	/ coroutine switching ***************************************************/	1171	/ coroutine switching ***************************************************/
792		1172
793	/* never call directly, always through the coro_state_transfer global variable */	1173	static void
		1174	transfer_check (pTHX_ struct coro prev, struct coro next)
		1175	{
		1176	if (expect_true (prev != next))
		1177	{
		1178	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		1179	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		1180
		1181	if (expect_false (next->flags & CF_RUNNING))
		1182	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		1183
		1184	if (expect_false (next->flags & CF_DESTROYED))
		1185	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		1186
		1187	#if !PERL_VERSION_ATLEAST (5,10,0)
		1188	if (expect_false (PL_lex_state != LEX_NOTPARSING))
		1189	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1190	#endif
		1191	}
		1192	}
		1193
		1194	/* always use the TRANSFER macro */
794	static void NOINLINE	1195	static void NOINLINE
795	transfer (pTHX_ struct coro prev, struct coro next)	1196	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
796	{	1197	{
797	dSTACKLEVEL;	1198	dSTACKLEVEL;
		1199	static volatile int has_throw;
798		1200
799	/* sometimes transfer is only called to set idle_sp */	1201	/* sometimes transfer is only called to set idle_sp */
800	if (!next)	1202	if (expect_false (!next))
801	{	1203	{
802	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1204	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
803	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1205	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
804	}	1206	}
805	else if (prev != next)	1207	else if (expect_true (prev != next))
806	{	1208	{
807	coro_cctx *prev__cctx;	1209	coro_cctx *prev__cctx;
808		1210
809	if (prev->flags & CF_NEW)	1211	if (expect_false (prev->flags & CF_NEW))
810	{	1212	{
811	/* create a new empty context */	1213	/* create a new empty context */
812	Newz (0, prev->cctx, 1, coro_cctx);	1214	Newz (0, prev->cctx, 1, coro_cctx);
813	prev->cctx->inuse = 1;
814	prev->flags &= ~CF_NEW;	1215	prev->flags &= ~CF_NEW;
815	prev->flags \|= CF_RUNNING;	1216	prev->flags \|= CF_RUNNING;
816	}	1217	}
817		1218
818	/TODO: must not croak here /
819	if (!prev->flags & CF_RUNNING)
820	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
821
822	if (next->flags & CF_RUNNING)
823	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
824
825	if (next->flags & CF_DESTROYED)
826	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
827
828	prev->flags &= ~CF_RUNNING;	1219	prev->flags &= ~CF_RUNNING;
829	next->flags \|= CF_RUNNING;	1220	next->flags \|= CF_RUNNING;
830		1221
831	LOCK;	1222	LOCK;
832		1223
		1224	/* first get rid of the old state */
		1225	save_perl (aTHX_ prev);
		1226
833	if (next->flags & CF_NEW)	1227	if (expect_false (next->flags & CF_NEW))
834	{	1228	{
835	/* need to start coroutine */	1229	/* need to start coroutine */
836	next->flags &= ~CF_NEW;	1230	next->flags &= ~CF_NEW;
837	/* first get rid of the old state */
838	save_perl (aTHX_ prev);
839	/* setup coroutine call */	1231	/* setup coroutine call */
840	setup_coro (aTHX_ next);	1232	coro_setup (aTHX_ next);
841	/* need a new stack */
842	assert (!next->cctx);
843	}	1233	}
844	else	1234	else
845	{
846	/* coroutine already started */
847	save_perl (aTHX_ prev);
848	load_perl (aTHX_ next);	1235	load_perl (aTHX_ next);
849	}
850		1236
851	prev__cctx = prev->cctx;	1237	prev__cctx = prev->cctx;
852		1238
853	/* possibly "free" the cctx */	1239	/* possibly "free" the cctx */
		1240	if (expect_true (
854	if (prev__cctx->idle_sp == STACKLEVEL)	1241	prev__cctx->idle_sp == STACKLEVEL
		1242	&& !(prev__cctx->flags & CC_TRACE)
		1243	&& !force_cctx
		1244	))
855	{	1245	{
856	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1246	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
857	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1247	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
858		1248
859	prev->cctx = 0;	1249	prev->cctx = 0;
860		1250
		1251	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1252	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1253	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1254	if (!next->cctx)
		1255	next->cctx = cctx_get (aTHX);
		1256
861	cctx_put (prev__cctx);	1257	cctx_put (prev__cctx);
862	prev__cctx->inuse = 0;
863	}	1258	}
864		1259
		1260	++next->usecount;
		1261
865	if (!next->cctx)	1262	if (expect_true (!next->cctx))
866	{
867	next->cctx = cctx_get (aTHX);	1263	next->cctx = cctx_get (aTHX);
868	assert (!next->cctx->inuse);
869	next->cctx->inuse = 1;
870	}
871		1264
		1265	has_throw = !!next->throw;
		1266
872	if (prev__cctx != next->cctx)	1267	if (expect_false (prev__cctx != next->cctx))
873	{	1268	{
874	prev__cctx->top_env = PL_top_env;	1269	prev__cctx->top_env = PL_top_env;
875	PL_top_env = next->cctx->top_env;	1270	PL_top_env = next->cctx->top_env;
876	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1271	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
877	}	1272	}
878		1273
879	free_coro_mortal (aTHX);	1274	free_coro_mortal (aTHX);
880	UNLOCK;	1275	UNLOCK;
		1276
		1277	if (expect_false (has_throw))
		1278	{
		1279	struct coro *coro = SvSTATE (coro_current);
		1280
		1281	if (coro->throw)
		1282	{
		1283	SV *exception = coro->throw;
		1284	coro->throw = 0;
		1285	sv_setsv (ERRSV, exception);
		1286	croak (0);
		1287	}
		1288	}
881	}	1289	}
882	}	1290	}
883		1291
884	struct transfer_args	1292	struct transfer_args
885	{	1293	{
886	struct coro prev, next;	1294	struct coro prev, next;
887	};	1295	};
888		1296
		1297	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
889	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1298	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
890		1299
891	/ high level stuff ******************************************************/	1300	/ high level stuff ******************************************************/
892		1301
893	static int	1302	static int
894	coro_state_destroy (pTHX_ struct coro *coro)	1303	coro_state_destroy (pTHX_ struct coro *coro)
…		…
911		1320
912	if (coro->mainstack && coro->mainstack != main_mainstack)	1321	if (coro->mainstack && coro->mainstack != main_mainstack)
913	{	1322	{
914	struct coro temp;	1323	struct coro temp;
915		1324
916	assert (!(coro->flags & CF_RUNNING));
917
918	Zero (&temp, 1, struct coro);
919	temp.save = CORO_SAVE_ALL;
920
921	if (coro->flags & CF_RUNNING)	1325	if (coro->flags & CF_RUNNING)
922	croak ("FATAL: tried to destroy currently running coroutine");	1326	croak ("FATAL: tried to destroy currently running coroutine");
923		1327
924	save_perl (aTHX_ &temp);	1328	save_perl (aTHX_ &temp);
925	load_perl (aTHX_ coro);	1329	load_perl (aTHX_ coro);
926		1330
927	coro_destroy_stacks (aTHX);	1331	coro_destroy (aTHX_ coro);
928		1332
929	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1333	load_perl (aTHX_ &temp);
930		1334
931	coro->mainstack = 0;	1335	coro->slot = 0;
932	}	1336	}
933		1337
934	cctx_destroy (coro->cctx);	1338	cctx_destroy (coro->cctx);
935	SvREFCNT_dec (coro->args);	1339	SvREFCNT_dec (coro->args);
936		1340
…		…
977	#else	1381	#else
978	# define MGf_DUP 0	1382	# define MGf_DUP 0
979	#endif	1383	#endif
980	};	1384	};
981		1385
982	static struct coro *
983	SvSTATE_ (pTHX_ SV *coro)
984	{
985	HV *stash;
986	MAGIC *mg;
987
988	if (SvROK (coro))
989	coro = SvRV (coro);
990
991	stash = SvSTASH (coro);
992	if (stash != coro_stash && stash != coro_state_stash)
993	{
994	/* very slow, but rare, check */
995	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
996	croak ("Coro::State object required");
997	}
998
999	mg = CORO_MAGIC (coro);
1000	return (struct coro *)mg->mg_ptr;
1001	}
1002
1003	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
1004
1005	static void	1386	static void
1006	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1387	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
1007	{	1388	{
1008	ta->prev = SvSTATE (prev_sv);	1389	ta->prev = SvSTATE (prev_sv);
1009	ta->next = SvSTATE (next_sv);	1390	ta->next = SvSTATE (next_sv);
		1391	TRANSFER_CHECK (*ta);
1010	}	1392	}
1011		1393
1012	static void	1394	static void
1013	api_transfer (SV prev_sv, SV next_sv)	1395	api_transfer (SV prev_sv, SV next_sv)
1014	{	1396	{
1015	dTHX;	1397	dTHX;
1016	struct transfer_args ta;	1398	struct transfer_args ta;
1017		1399
1018	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1400	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1019	TRANSFER (ta);	1401	TRANSFER (ta, 1);
1020	}
1021
1022	static int
1023	api_save (SV *coro_sv, int new_save)
1024	{
1025	dTHX;
1026	struct coro *coro = SvSTATE (coro_sv);
1027	int old_save = coro->save;
1028
1029	if (new_save >= 0)
1030	coro->save = new_save;
1031
1032	return old_save;
1033	}	1402	}
1034		1403
1035	/ Coro ******************************************************************/	1404	/ Coro ******************************************************************/
1036		1405
1037	static void	1406	static void
…		…
1039	{	1408	{
1040	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1409	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1041	}	1410	}
1042		1411
1043	static SV *	1412	static SV *
1044	coro_deq (pTHX_ int min_prio)	1413	coro_deq (pTHX)
1045	{	1414	{
1046	int prio = PRIO_MAX - PRIO_MIN;	1415	int prio;
1047		1416
1048	min_prio -= PRIO_MIN;
1049	if (min_prio < 0)
1050	min_prio = 0;
1051
1052	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1417	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1053	if (AvFILLp (coro_ready [prio]) >= 0)	1418	if (AvFILLp (coro_ready [prio]) >= 0)
1054	return av_shift (coro_ready [prio]);	1419	return av_shift (coro_ready [prio]);
1055		1420
1056	return 0;	1421	return 0;
1057	}	1422	}
…		…
1059	static int	1424	static int
1060	api_ready (SV *coro_sv)	1425	api_ready (SV *coro_sv)
1061	{	1426	{
1062	dTHX;	1427	dTHX;
1063	struct coro *coro;	1428	struct coro *coro;
		1429	SV *sv_hook;
		1430	void (*xs_hook)(void);
1064		1431
1065	if (SvROK (coro_sv))	1432	if (SvROK (coro_sv))
1066	coro_sv = SvRV (coro_sv);	1433	coro_sv = SvRV (coro_sv);
1067		1434
1068	coro = SvSTATE (coro_sv);	1435	coro = SvSTATE (coro_sv);
…		…
1071	return 0;	1438	return 0;
1072		1439
1073	coro->flags \|= CF_READY;	1440	coro->flags \|= CF_READY;
1074		1441
1075	LOCK;	1442	LOCK;
		1443
		1444	sv_hook = coro_nready ? 0 : coro_readyhook;
		1445	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1446
1076	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1447	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1077	++coro_nready;	1448	++coro_nready;
		1449
1078	UNLOCK;	1450	UNLOCK;
		1451
		1452	if (sv_hook)
		1453	{
		1454	dSP;
		1455
		1456	ENTER;
		1457	SAVETMPS;
		1458
		1459	PUSHMARK (SP);
		1460	PUTBACK;
		1461	call_sv (sv_hook, G_DISCARD);
		1462	SPAGAIN;
		1463
		1464	FREETMPS;
		1465	LEAVE;
		1466	}
		1467
		1468	if (xs_hook)
		1469	xs_hook ();
1079		1470
1080	return 1;	1471	return 1;
1081	}	1472	}
1082		1473
1083	static int	1474	static int
…		…
1093	SV prev_sv, next_sv;	1484	SV prev_sv, next_sv;
1094		1485
1095	for (;;)	1486	for (;;)
1096	{	1487	{
1097	LOCK;	1488	LOCK;
1098	next_sv = coro_deq (aTHX_ PRIO_MIN);	1489	next_sv = coro_deq (aTHX);
1099		1490
1100	/* nothing to schedule: call the idle handler */	1491	/* nothing to schedule: call the idle handler */
1101	if (!next_sv)	1492	if (expect_false (!next_sv))
1102	{	1493	{
1103	dSP;	1494	dSP;
1104	UNLOCK;	1495	UNLOCK;
1105		1496
1106	ENTER;	1497	ENTER;
1107	SAVETMPS;	1498	SAVETMPS;
1108		1499
1109	PUSHMARK (SP);	1500	PUSHMARK (SP);
1110	PUTBACK;	1501	PUTBACK;
1111	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1502	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1503	SPAGAIN;
1112		1504
1113	FREETMPS;	1505	FREETMPS;
1114	LEAVE;	1506	LEAVE;
1115	continue;	1507	continue;
1116	}	1508	}
1117		1509
1118	ta->next = SvSTATE (next_sv);	1510	ta->next = SvSTATE (next_sv);
1119		1511
1120	/* cannot transfer to destroyed coros, skip and look for next */	1512	/* cannot transfer to destroyed coros, skip and look for next */
1121	if (ta->next->flags & CF_DESTROYED)	1513	if (expect_false (ta->next->flags & CF_DESTROYED))
1122	{	1514	{
1123	UNLOCK;	1515	UNLOCK;
1124	SvREFCNT_dec (next_sv);	1516	SvREFCNT_dec (next_sv);
1125	/* coro_nready is already taken care of by destroy */	1517	/* coro_nready is already taken care of by destroy */
1126	continue;	1518	continue;
…		…
1131	break;	1523	break;
1132	}	1524	}
1133		1525
1134	/* free this only after the transfer */	1526	/* free this only after the transfer */
1135	prev_sv = SvRV (coro_current);	1527	prev_sv = SvRV (coro_current);
1136	SvRV_set (coro_current, next_sv);
1137	ta->prev = SvSTATE (prev_sv);	1528	ta->prev = SvSTATE (prev_sv);
1138		1529	TRANSFER_CHECK (*ta);
1139	assert (ta->next->flags & CF_READY);	1530	assert (ta->next->flags & CF_READY);
1140	ta->next->flags &= ~CF_READY;	1531	ta->next->flags &= ~CF_READY;
		1532	SvRV_set (coro_current, next_sv);
1141		1533
1142	LOCK;	1534	LOCK;
1143	free_coro_mortal (aTHX);	1535	free_coro_mortal (aTHX);
1144	coro_mortal = prev_sv;	1536	coro_mortal = prev_sv;
1145	UNLOCK;	1537	UNLOCK;
…		…
1171	{	1563	{
1172	dTHX;	1564	dTHX;
1173	struct transfer_args ta;	1565	struct transfer_args ta;
1174		1566
1175	prepare_schedule (aTHX_ &ta);	1567	prepare_schedule (aTHX_ &ta);
1176	TRANSFER (ta);	1568	TRANSFER (ta, 1);
1177	}	1569	}
1178		1570
1179	static int	1571	static int
1180	api_cede (void)	1572	api_cede (void)
1181	{	1573	{
1182	dTHX;	1574	dTHX;
1183	struct transfer_args ta;	1575	struct transfer_args ta;
1184		1576
1185	prepare_cede (aTHX_ &ta);	1577	prepare_cede (aTHX_ &ta);
1186		1578
1187	if (ta.prev != ta.next)	1579	if (expect_true (ta.prev != ta.next))
1188	{	1580	{
1189	TRANSFER (ta);	1581	TRANSFER (ta, 1);
1190	return 1;	1582	return 1;
1191	}	1583	}
1192	else	1584	else
1193	return 0;	1585	return 0;
1194	}	1586	}
…		…
1199	dTHX;	1591	dTHX;
1200	struct transfer_args ta;	1592	struct transfer_args ta;
1201		1593
1202	if (prepare_cede_notself (aTHX_ &ta))	1594	if (prepare_cede_notself (aTHX_ &ta))
1203	{	1595	{
1204	TRANSFER (ta);	1596	TRANSFER (ta, 1);
1205	return 1;	1597	return 1;
1206	}	1598	}
1207	else	1599	else
1208	return 0;	1600	return 0;
1209	}	1601	}
1210		1602
		1603	static void
		1604	api_trace (SV *coro_sv, int flags)
		1605	{
		1606	dTHX;
		1607	struct coro *coro = SvSTATE (coro_sv);
		1608
		1609	if (flags & CC_TRACE)
		1610	{
		1611	if (!coro->cctx)
		1612	coro->cctx = cctx_new ();
		1613	else if (!(coro->cctx->flags & CC_TRACE))
		1614	croak ("cannot enable tracing on coroutine with custom stack");
		1615
		1616	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1617	}
		1618	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1619	{
		1620	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1621
		1622	if (coro->flags & CF_RUNNING)
		1623	PL_runops = RUNOPS_DEFAULT;
		1624	else
		1625	coro->slot->runops = RUNOPS_DEFAULT;
		1626	}
		1627	}
		1628
1211	MODULE = Coro::State PACKAGE = Coro::State	1629	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1212		1630
1213	PROTOTYPES: DISABLE	1631	PROTOTYPES: DISABLE
1214		1632
1215	BOOT:	1633	BOOT:
1216	{	1634	{
1217	#ifdef USE_ITHREADS	1635	#ifdef USE_ITHREADS
1218	MUTEX_INIT (&coro_mutex);	1636	MUTEX_INIT (&coro_mutex);
1219	#endif	1637	#endif
1220	BOOT_PAGESIZE;	1638	BOOT_PAGESIZE;
1221		1639
		1640	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1641	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1642
		1643	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1644	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1645	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1646
		1647	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1648	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1649	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1650
1222	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1651	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1223		1652
1224	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1653	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1225	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1654	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1226	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1227	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1228	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1229	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1655	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1230	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1656	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1231		1657
1232	main_mainstack = PL_mainstack;	1658	main_mainstack = PL_mainstack;
1233	main_top_env = PL_top_env;	1659	main_top_env = PL_top_env;
1234		1660
1235	while (main_top_env->je_prev)	1661	while (main_top_env->je_prev)
1236	main_top_env = main_top_env->je_prev;	1662	main_top_env = main_top_env->je_prev;
1237		1663
1238	coroapi.ver = CORO_API_VERSION;	1664	coroapi.ver = CORO_API_VERSION;
		1665	coroapi.rev = CORO_API_REVISION;
1239	coroapi.transfer = api_transfer;	1666	coroapi.transfer = api_transfer;
1240		1667
1241	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1668	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1242	}	1669	}
1243		1670
1244	SV *	1671	SV *
1245	new (char *klass, ...)	1672	new (char *klass, ...)
1246	CODE:	1673	CODE:
1247	{	1674	{
1248	struct coro *coro;	1675	struct coro *coro;
		1676	MAGIC *mg;
1249	HV *hv;	1677	HV *hv;
1250	int i;	1678	int i;
1251		1679
1252	Newz (0, coro, 1, struct coro);	1680	Newz (0, coro, 1, struct coro);
1253	coro->args = newAV ();	1681	coro->args = newAV ();
1254	coro->save = CORO_SAVE_DEF;
1255	coro->flags = CF_NEW;	1682	coro->flags = CF_NEW;
1256		1683
1257	if (coro_first) coro_first->prev = coro;	1684	if (coro_first) coro_first->prev = coro;
1258	coro->next = coro_first;	1685	coro->next = coro_first;
1259	coro_first = coro;	1686	coro_first = coro;
1260		1687
1261	coro->hv = hv = newHV ();	1688	coro->hv = hv = newHV ();
1262	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1689	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1690	mg->mg_flags \|= MGf_DUP;
1263	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1691	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1264		1692
		1693	av_extend (coro->args, items - 1);
1265	for (i = 1; i < items; i++)	1694	for (i = 1; i < items; i++)
1266	av_push (coro->args, newSVsv (ST (i)));	1695	av_push (coro->args, newSVsv (ST (i)));
1267	}	1696	}
1268	OUTPUT:	1697	OUTPUT:
1269	RETVAL	1698	RETVAL
1270		1699
1271	int	1700	# these not obviously related functions are all rolled into the same xs
1272	save (SV *coro, int new_save = -1)	1701	# function to increase chances that they all will call transfer with the same
1273	CODE:	1702	# stack offset
1274	RETVAL = api_save (coro, new_save);
1275	OUTPUT:
1276	RETVAL
1277
1278	int
1279	save_also (SV *coro_sv, int save_also)
1280	CODE:
1281	{
1282	struct coro *coro = SvSTATE (coro_sv);
1283	RETVAL = coro->save;
1284	coro->save \|= save_also;
1285	}
1286	OUTPUT:
1287	RETVAL
1288
1289	void	1703	void
1290	_set_stacklevel (...)	1704	_set_stacklevel (...)
1291	ALIAS:	1705	ALIAS:
1292	Coro::State::transfer = 1	1706	Coro::State::transfer = 1
1293	Coro::schedule = 2	1707	Coro::schedule = 2
…		…
1295	Coro::cede_notself = 4	1709	Coro::cede_notself = 4
1296	CODE:	1710	CODE:
1297	{	1711	{
1298	struct transfer_args ta;	1712	struct transfer_args ta;
1299		1713
		1714	PUTBACK;
1300	switch (ix)	1715	switch (ix)
1301	{	1716	{
1302	case 0:	1717	case 0:
1303	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1718	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1304	ta.next = 0;	1719	ta.next = 0;
…		…
1323	if (!prepare_cede_notself (aTHX_ &ta))	1738	if (!prepare_cede_notself (aTHX_ &ta))
1324	XSRETURN_EMPTY;	1739	XSRETURN_EMPTY;
1325		1740
1326	break;	1741	break;
1327	}	1742	}
		1743	SPAGAIN;
1328		1744
1329	BARRIER;	1745	BARRIER;
		1746	PUTBACK;
1330	TRANSFER (ta);	1747	TRANSFER (ta, 0);
1331		1748	SPAGAIN; /* might be the sp of a different coroutine now */
1332	if (GIMME_V != G_VOID && ta.next != ta.prev)	1749	/* be extra careful not to ever do anything after TRANSFER */
1333	XSRETURN_YES;
1334	}	1750	}
1335		1751
1336	bool	1752	bool
1337	_destroy (SV *coro_sv)	1753	_destroy (SV *coro_sv)
1338	CODE:	1754	CODE:
1339	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1755	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1340	OUTPUT:	1756	OUTPUT:
1341	RETVAL	1757	RETVAL
1342		1758
1343	void	1759	void
1344	_exit (code)	1760	_exit (int code)
1345	int code
1346	PROTOTYPE: $	1761	PROTOTYPE: $
1347	CODE:	1762	CODE:
1348	_exit (code);	1763	_exit (code);
1349		1764
1350	int	1765	int
…		…
1379	if (coro->hv)	1794	if (coro->hv)
1380	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	1795	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1381	}	1796	}
1382		1797
1383	void	1798	void
1384	_eval (Coro::State coro, SV *coderef)	1799	call (Coro::State coro, SV *coderef)
		1800	ALIAS:
		1801	eval = 1
1385	CODE:	1802	CODE:
1386	{	1803	{
1387	if (coro->mainstack)	1804	if (coro->mainstack)
1388	{	1805	{
1389	struct coro temp;	1806	struct coro temp;
1390	Zero (&temp, 1, struct coro);
1391	temp.save = CORO_SAVE_ALL;
1392		1807
1393	if (!(coro->flags & CF_RUNNING))	1808	if (!(coro->flags & CF_RUNNING))
1394	{	1809	{
		1810	PUTBACK;
1395	save_perl (aTHX_ &temp);	1811	save_perl (aTHX_ &temp);
1396	load_perl (aTHX_ coro);	1812	load_perl (aTHX_ coro);
1397	}	1813	}
1398		1814
1399	{	1815	{
1400	dSP;	1816	dSP;
1401	ENTER;	1817	ENTER;
1402	SAVETMPS;	1818	SAVETMPS;
		1819	PUTBACK;
		1820	PUSHSTACK;
1403	PUSHMARK (SP);	1821	PUSHMARK (SP);
1404	PUTBACK;	1822
		1823	if (ix)
		1824	eval_sv (coderef, 0);
		1825	else
1405	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1826	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1827
		1828	POPSTACK;
1406	SPAGAIN;	1829	SPAGAIN;
1407	FREETMPS;	1830	FREETMPS;
1408	LEAVE;	1831	LEAVE;
1409	PUTBACK;	1832	PUTBACK;
1410	}	1833	}
1411		1834
1412	if (!(coro->flags & CF_RUNNING))	1835	if (!(coro->flags & CF_RUNNING))
1413	{	1836	{
1414	save_perl (aTHX_ coro);	1837	save_perl (aTHX_ coro);
1415	load_perl (aTHX_ &temp);	1838	load_perl (aTHX_ &temp);
		1839	SPAGAIN;
1416	}	1840	}
1417	}	1841	}
1418	}	1842	}
1419		1843
1420	SV *	1844	SV *
1421	is_ready (Coro::State coro)	1845	is_ready (Coro::State coro)
1422	PROTOTYPE: $	1846	PROTOTYPE: $
1423	ALIAS:	1847	ALIAS:
1424	is_ready = CF_READY	1848	is_ready = CF_READY
…		…
1428	CODE:	1852	CODE:
1429	RETVAL = boolSV (coro->flags & ix);	1853	RETVAL = boolSV (coro->flags & ix);
1430	OUTPUT:	1854	OUTPUT:
1431	RETVAL	1855	RETVAL
1432		1856
		1857	void
		1858	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1859
		1860	SV *
		1861	has_cctx (Coro::State coro)
		1862	PROTOTYPE: $
		1863	CODE:
		1864	RETVAL = boolSV (!!coro->cctx);
		1865	OUTPUT:
		1866	RETVAL
		1867
		1868	int
		1869	is_traced (Coro::State coro)
		1870	PROTOTYPE: $
		1871	CODE:
		1872	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1873	OUTPUT:
		1874	RETVAL
		1875
1433	IV	1876	IV
1434	rss (Coro::State coro)	1877	rss (Coro::State coro)
1435	PROTOTYPE: $	1878	PROTOTYPE: $
		1879	ALIAS:
		1880	usecount = 1
1436	CODE:	1881	CODE:
1437	RETVAL = coro_rss (coro);	1882	switch (ix)
		1883	{
		1884	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1885	case 1: RETVAL = coro->usecount; break;
		1886	}
1438	OUTPUT:	1887	OUTPUT:
1439	RETVAL	1888	RETVAL
1440		1889
		1890	void
		1891	force_cctx ()
		1892	CODE:
		1893	struct coro *coro = SvSTATE (coro_current);
		1894	coro->cctx->idle_sp = 0;
1441		1895
1442	MODULE = Coro::State PACKAGE = Coro	1896	MODULE = Coro::State PACKAGE = Coro
1443		1897
1444	BOOT:	1898	BOOT:
1445	{	1899	{
1446	int i;	1900	int i;
1447		1901
1448	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1449	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1450	av_async_pool = get_av ("Coro::async_pool", TRUE);	1902	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1903	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1904	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1451		1905
1452	coro_current = get_sv ("Coro::current", FALSE);	1906	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1453	SvREADONLY_on (coro_current);	1907	SvREADONLY_on (coro_current);
1454		1908
1455	coro_stash = gv_stashpv ("Coro", TRUE);	1909	coro_stash = gv_stashpv ("Coro", TRUE);
1456		1910
1457	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1911	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1458	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1912	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1459	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1913	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1460	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1914	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1463		1917
1464	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1918	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1465	coro_ready[i] = newAV ();	1919	coro_ready[i] = newAV ();
1466		1920
1467	{	1921	{
1468	SV *sv = perl_get_sv("Coro::API", 1);	1922	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1923	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1469		1924
1470	coroapi.schedule = api_schedule;	1925	coroapi.schedule = api_schedule;
1471	coroapi.save = api_save;
1472	coroapi.cede = api_cede;	1926	coroapi.cede = api_cede;
1473	coroapi.cede_notself = api_cede_notself;	1927	coroapi.cede_notself = api_cede_notself;
1474	coroapi.ready = api_ready;	1928	coroapi.ready = api_ready;
1475	coroapi.is_ready = api_is_ready;	1929	coroapi.is_ready = api_is_ready;
1476	coroapi.nready = &coro_nready;	1930	coroapi.nready = &coro_nready;
…		…
1486	_set_current (SV *current)	1940	_set_current (SV *current)
1487	PROTOTYPE: $	1941	PROTOTYPE: $
1488	CODE:	1942	CODE:
1489	SvREFCNT_dec (SvRV (coro_current));	1943	SvREFCNT_dec (SvRV (coro_current));
1490	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1944	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
		1945
		1946	void
		1947	_set_readyhook (SV *hook)
		1948	PROTOTYPE: $
		1949	CODE:
		1950	LOCK;
		1951	SvREFCNT_dec (coro_readyhook);
		1952	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1953	UNLOCK;
1491		1954
1492	int	1955	int
1493	prio (Coro::State coro, int newprio = 0)	1956	prio (Coro::State coro, int newprio = 0)
1494	ALIAS:	1957	ALIAS:
1495	nice = 1	1958	nice = 1
…		…
1525	CODE:	1988	CODE:
1526	RETVAL = coro_nready;	1989	RETVAL = coro_nready;
1527	OUTPUT:	1990	OUTPUT:
1528	RETVAL	1991	RETVAL
1529		1992
		1993	void
		1994	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1995	PROTOTYPE: $;$
		1996	CODE:
		1997	SvREFCNT_dec (self->throw);
		1998	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1999
		2000	void
		2001	swap_defsv (Coro::State self)
		2002	PROTOTYPE: $
		2003	ALIAS:
		2004	swap_defav = 1
		2005	CODE:
		2006	if (!self->slot)
		2007	croak ("cannot swap state with coroutine that has no saved state");
		2008	else
		2009	{
		2010	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2011	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2012
		2013	SV tmp = src; src = dst; *dst = tmp;
		2014	}
		2015
1530	# for async_pool speedup	2016	# for async_pool speedup
1531	SV *	2017	void
1532	_pool_1 (...)	2018	_pool_1 (SV *cb)
1533	CODE:	2019	CODE:
1534	{	2020	{
1535	int i, len;	2021	struct coro *coro = SvSTATE (coro_current);
1536	HV hv = (HV )SvRV (coro_current);	2022	HV hv = (HV )SvRV (coro_current);
1537	AV *defav = GvAV (PL_defgv);	2023	AV *defav = GvAV (PL_defgv);
1538	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2024	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1539	AV *invoke_av;	2025	AV *invoke_av;
		2026	int i, len;
1540		2027
1541	if (!invoke)	2028	if (!invoke)
1542	XSRETURN_EMPTY;	2029	{
		2030	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
		2031	croak ("\3async_pool terminate\2\n");
		2032	}
		2033
		2034	SvREFCNT_dec (coro->saved_deffh);
		2035	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1543		2036
1544	hv_store (hv, "desc", sizeof ("desc") - 1,	2037	hv_store (hv, "desc", sizeof ("desc") - 1,
1545	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2038	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1546		2039
1547	invoke_av = (AV *)SvRV (invoke);	2040	invoke_av = (AV *)SvRV (invoke);
1548	len = av_len (invoke_av);	2041	len = av_len (invoke_av);
1549		2042
1550	RETVAL = SvREFCNT_inc (AvARRAY (invoke_av)[0]);	2043	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1551		2044
1552	if (len > 0)	2045	if (len > 0)
1553	{	2046	{
1554	av_clear (defav);
1555	av_extend (defav, len);	2047	av_fill (defav, len - 1);
1556	for (i = 0; i < len; ++i)	2048	for (i = 0; i < len; ++i)
1557	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2049	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1558	}	2050	}
1559		2051
1560	SvREFCNT_dec (invoke);	2052	SvREFCNT_dec (invoke);
1561	}	2053	}
1562	OUTPUT:
1563	RETVAL
1564		2054
1565	void	2055	void
1566	_pool_2 (...)	2056	_pool_2 (SV *cb)
1567	CODE:	2057	CODE:
1568	{	2058	{
1569	struct coro *coro = SvSTATE (coro_current);	2059	struct coro *coro = SvSTATE (coro_current);
1570		2060
		2061	sv_setsv (cb, &PL_sv_undef);
		2062
		2063	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		2064	coro->saved_deffh = 0;
		2065
1571	if (coro_rss (coro) > SvIV (sv_pool_rss)	2066	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1572	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2067	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1573	XSRETURN_YES;	2068	{
		2069	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
		2070	croak ("\3async_pool terminate\2\n");
		2071	}
1574		2072
1575	av_clear (GvAV (PL_defgv));	2073	av_clear (GvAV (PL_defgv));
1576	hv_store (SvRV (coro_current), "desc", sizeof ("desc") - 1,	2074	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1577	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2075	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1578	coro->save = CORO_SAVE_DEF;	2076
1579	coro->prio = 0;	2077	coro->prio = 0;
		2078
		2079	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		2080	api_trace (coro_current, 0);
		2081
1580	av_push (av_async_pool, newSVsv (coro_current));	2082	av_push (av_async_pool, newSVsv (coro_current));
1581
1582	XSRETURN_NO;
1583	}	2083	}
1584		2084
1585		2085
1586	MODULE = Coro::State PACKAGE = Coro::AIO	2086	MODULE = Coro::State PACKAGE = Coro::AIO
1587		2087
…		…
1615	PL_laststype = data->laststype;	2115	PL_laststype = data->laststype;
1616	PL_laststatval = data->laststatval;	2116	PL_laststatval = data->laststatval;
1617	PL_statcache = data->statcache;	2117	PL_statcache = data->statcache;
1618	}	2118	}
1619		2119
		2120
		2121	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2122
		2123	BOOT:
		2124	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2125
		2126	SV *
		2127	_schedule (...)
		2128	PROTOTYPE: @
		2129	CODE:
		2130	{
		2131	static int incede;
		2132
		2133	api_cede_notself ();
		2134
		2135	++incede;
		2136	while (coro_nready >= incede && api_cede ())
		2137	;
		2138
		2139	sv_setsv (sv_activity, &PL_sv_undef);
		2140	if (coro_nready >= incede)
		2141	{
		2142	PUSHMARK (SP);
		2143	PUTBACK;
		2144	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2145	SPAGAIN;
		2146	}
		2147
		2148	--incede;
		2149	}
		2150

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Comparing Coro/Coro/State.xs (file contents): Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC vs. Revision 1.239 by root, Sat Jun 28 23:14:19 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC vs.
Revision 1.239 by root, Sat Jun 28 23:14:19 2008 UTC