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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.21 by root, Sat Aug 11 19:59:19 2001 UTC vs.
Revision 1.58 by pcg, Fri May 14 13:25:09 2004 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
1	#include "EXTERN.h"	3	#include "EXTERN.h"
2	#include "perl.h"	4	#include "perl.h"
3	#include "XSUB.h"	5	#include "XSUB.h"
4		6
		7	#include "patchlevel.h"
		8
		9	#if PATCHLEVEL < 6
		10	# ifndef PL_ppaddr
		11	# define PL_ppaddr ppaddr
		12	# endif
		13	# ifndef call_sv
		14	# define call_sv perl_call_sv
		15	# endif
		16	# ifndef get_sv
		17	# define get_sv perl_get_sv
		18	# endif
		19	# ifndef get_cv
		20	# define get_cv perl_get_cv
		21	# endif
		22	# ifndef IS_PADGV
		23	# define IS_PADGV(v) 0
		24	# endif
		25	# ifndef IS_PADCONST
		26	# define IS_PADCONST(v) 0
		27	# endif
		28	#endif
		29
5	#include "libcoro/coro.c"	30	#include "libcoro/coro.c"
6		31
7	#include <signal.h>	32	#include <signal.h>
8		33
9	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
10	# include <unistd.h>	35	# include <unistd.h>
11	# include <sys/mman.h>	36	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
15	# else	40	# else
16	# undef HAVE_MMAP	41	# undef HAVE_MMAP
17	# endif	42	# endif
18	# endif	43	# endif
19	#endif	44	#endif
20		45
21	#define MAY_FLUSH /* increases codesize */
22
23	/* perl-related */
24	#define TRANSFER_SAVE_DEFAV 0x00000001
25	#define TRANSFER_SAVE_DEFSV 0x00000002
26	#define TRANSFER_SAVE_ERRSV 0x00000004
27	/* c-related */
28	#define TRANSFER_SAVE_CCTXT 0x00000008
29	#ifdef CORO_LAZY_STACK
30	# define TRANSFER_LAZY_STACK 0x00000010
31	#else
32	# define TRANSFER_LAZY_STACK 0x00000000
33	#endif
34
35	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
36	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
37
38	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
39	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
40		48
41	/* The next macro should delcare a variable stacklevel that contains and approximation	49	/* The next macro should declare a variable stacklevel that contains and approximation
42	* to the current C stack pointer. It's property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
43	* and should be unique. */	51	* and should be unique. */
44	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
45		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
46	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
		57
		58	#include "CoroAPI.h"
		59
		60	#ifdef USE_ITHREADS
		61	static perl_mutex coro_mutex;
		62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		64	#else
		65	# define LOCK 0
		66	# define UNLOCK 0
		67	#endif
		68
		69	static struct CoroAPI coroapi;
		70	static AV main_mainstack; / used to differentiate between $main and others */
		71	static HV *coro_state_stash;
		72	static SV *ucoro_state_sv;
		73	static U32 ucoro_state_hash;
		74	static SV coro_mortal; / will be freed after next transfer */
47		75
48	/* this is actually not only the c stack but also c registers etc... */	76	/* this is actually not only the c stack but also c registers etc... */
49	typedef struct {	77	typedef struct {
50	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
51	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
56	void *sptr;	84	void *sptr;
57	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
58	} coro_stack;	86	} coro_stack;
59		87
60	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
61	/* the optional C context */	92	/* the optional C context */
62	coro_stack *stack;	93	coro_stack *stack;
63	void *cursp;	94	void *cursp;
64	int gencnt;	95	int gencnt;
65		96
…		…
77	AV *curstack;	108	AV *curstack;
78	AV *mainstack;	109	AV *mainstack;
79	SV **stack_sp;	110	SV **stack_sp;
80	OP *op;	111	OP *op;
81	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
82	SV **stack_base;	114	SV **stack_base;
83	SV **stack_max;	115	SV **stack_max;
84	SV **tmps_stack;	116	SV **tmps_stack;
85	I32 tmps_floor;	117	I32 tmps_floor;
86	I32 tmps_ix;	118	I32 tmps_ix;
…		…
105	};	137	};
106		138
107	typedef struct coro *Coro__State;	139	typedef struct coro *Coro__State;
108	typedef struct coro *Coro__State_or_hashref;	140	typedef struct coro *Coro__State_or_hashref;
109		141
110	static AV main_mainstack; / used to differentiate between $main and others */
111	static HV *coro_state_stash;
112	static SV *ucoro_state_sv;
113	static U32 ucoro_state_hash;
114	static HV *padlist_cache;
115
116	/* for Coro.pm */
117	static GV coro_current, coro_idle;
118	static AV *coro_ready;
119
120	/* mostly copied from op.c:cv_clone2 */	142	/* mostly copied from op.c:cv_clone2 */
121	STATIC AV *	143	STATIC AV *
122	clone_padlist (AV *protopadlist)	144	clone_padlist (pTHX_ AV *protopadlist)
123	{	145	{
124	AV *av;	146	AV *av;
125	I32 ix;	147	I32 ix;
126	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	148	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
127	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	149	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
151	AvFLAGS (av) = AVf_REIFY;	173	AvFLAGS (av) = AVf_REIFY;
152		174
153	for (ix = fpad; ix > 0; ix--)	175	for (ix = fpad; ix > 0; ix--)
154	{	176	{
155	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	177	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		178
156	if (namesv && namesv != &PL_sv_undef)	179	if (namesv && namesv != &PL_sv_undef)
157	{	180	{
158	char name = SvPVX (namesv); / XXX */	181	char name = SvPVX (namesv); / XXX */
		182
159	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	183	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
160	{ /* lexical from outside? */	184	{ /* lexical from outside? */
161	npad[ix] = SvREFCNT_inc (ppad[ix]);	185	npad[ix] = SvREFCNT_inc (ppad[ix]);
162	}	186	}
163	else	187	else
…		…
169	sv = (SV *) newAV ();	193	sv = (SV *) newAV ();
170	else if (*name == '%')	194	else if (*name == '%')
171	sv = (SV *) newHV ();	195	sv = (SV *) newHV ();
172	else	196	else
173	sv = NEWSV (0, 0);	197	sv = NEWSV (0, 0);
		198
		199	#ifdef SvPADBUSY
174	if (!SvPADBUSY (sv))	200	if (!SvPADBUSY (sv))
		201	#endif
175	SvPADMY_on (sv);	202	SvPADMY_on (sv);
		203
176	npad[ix] = sv;	204	npad[ix] = sv;
177	}	205	}
178	}	206	}
179	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	207	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
180	{	208	{
…		…
209	#endif	237	#endif
210		238
211	return newpadlist;	239	return newpadlist;
212	}	240	}
213		241
214	#ifdef MAY_FLUSH	242	STATIC void
215	STATIC AV *
216	free_padlist (AV *padlist)	243	free_padlist (pTHX_ AV *padlist)
217	{	244	{
218	/* may be during global destruction */	245	/* may be during global destruction */
219	if (SvREFCNT(padlist))	246	if (SvREFCNT (padlist))
220	{	247	{
221	I32 i = AvFILLp(padlist);	248	I32 i = AvFILLp (padlist);
222	while (i >= 0)	249	while (i >= 0)
223	{	250	{
224	SV **svp = av_fetch(padlist, i--, FALSE);	251	SV **svp = av_fetch (padlist, i--, FALSE);
225	SV sv = svp ? svp : Nullsv;
226	if (sv)	252	if (svp)
		253	{
		254	SV *sv;
		255	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
227	SvREFCNT_dec(sv);	256	SvREFCNT_dec (sv);
		257
		258	SvREFCNT_dec (*svp);
		259	}
228	}	260	}
229		261
230	SvREFCNT_dec((SV*)padlist);	262	SvREFCNT_dec ((SV*)padlist);
231	}	263	}
232	}	264	}
233	#endif	265
		266	STATIC int
		267	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		268	{
		269	AV *padlist;
		270	AV av = (AV )mg->mg_obj;
		271
		272	/* casting is fun. */
		273	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		274	free_padlist (aTHX_ padlist);
		275	}
		276
		277	#define PERL_MAGIC_coro PERL_MAGIC_ext
		278
		279	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
234		280
235	/* the next two functions merely cache the padlists */	281	/* the next two functions merely cache the padlists */
236	STATIC void	282	STATIC void
237	get_padlist (CV *cv)	283	get_padlist (pTHX_ CV *cv)
238	{	284	{
239	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	285	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
240		286
241	if (he && AvFILLp ((AV )he) >= 0)	287	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
242	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	288	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
243	else	289	else
244	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	290	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
245	}	291	}
246		292
247	STATIC void	293	STATIC void
248	put_padlist (CV *cv)	294	put_padlist (pTHX_ CV *cv)
249	{	295	{
250	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	296	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
251		297
252	if (SvTYPE (*he) != SVt_PVAV)	298	if (!mg)
253	{	299	{
254	SvREFCNT_dec (*he);	300	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		301	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		302	mg->mg_virtual = &vtbl_coro;
255	he = (SV )newAV ();	303	mg->mg_obj = (SV *)newAV ();
256	}	304	}
257		305
258	av_push ((AV )he, (SV *)CvPADLIST (cv));	306	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
259	}	307	}
260
261	#ifdef MAY_FLUSH
262	STATIC void
263	flush_padlist_cache ()
264	{
265	HV *hv = padlist_cache;
266	padlist_cache = newHV ();
267
268	if (hv_iterinit (hv))
269	{
270	HE *he;
271	AV *padlist;
272
273	while (!!(he = hv_iternext (hv)))
274	{
275	AV av = (AV )HeVAL(he);
276
277	/* casting is fun. */
278	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
279	free_padlist (padlist);
280	}
281	}
282
283	SvREFCNT_dec (hv);
284	}
285	#endif
286		308
287	#define SB do {	309	#define SB do {
288	#define SE } while (0)	310	#define SE } while (0)
289		311
290	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	312	#define LOAD(state) load_state(aTHX_ (state));
291	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	313	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
292		314
293	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	315	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
294		316
295	static void	317	static void
296	load_state(pTHX_ Coro__State c)	318	load_state(pTHX_ Coro__State c)
297	{	319	{
298	PL_dowarn = c->dowarn;	320	PL_dowarn = c->dowarn;
…		…
302	PL_curstack = c->curstack;	324	PL_curstack = c->curstack;
303	PL_mainstack = c->mainstack;	325	PL_mainstack = c->mainstack;
304	PL_stack_sp = c->stack_sp;	326	PL_stack_sp = c->stack_sp;
305	PL_op = c->op;	327	PL_op = c->op;
306	PL_curpad = c->curpad;	328	PL_curpad = c->curpad;
		329	PL_comppad = c->comppad;
307	PL_stack_base = c->stack_base;	330	PL_stack_base = c->stack_base;
308	PL_stack_max = c->stack_max;	331	PL_stack_max = c->stack_max;
309	PL_tmps_stack = c->tmps_stack;	332	PL_tmps_stack = c->tmps_stack;
310	PL_tmps_floor = c->tmps_floor;	333	PL_tmps_floor = c->tmps_floor;
311	PL_tmps_ix = c->tmps_ix;	334	PL_tmps_ix = c->tmps_ix;
…		…
338	{	361	{
339	AV padlist = (AV )POPs;	362	AV padlist = (AV )POPs;
340		363
341	if (padlist)	364	if (padlist)
342	{	365	{
343	put_padlist (cv); /* mark this padlist as available */	366	put_padlist (aTHX_ cv); /* mark this padlist as available */
344	CvPADLIST(cv) = padlist;	367	CvPADLIST(cv) = padlist;
345	#ifdef USE_THREADS
346	/CvOWNER(cv) = (struct perl_thread )POPs;*/
347	#endif
348	}	368	}
349		369
350	++CvDEPTH(cv);	370	++CvDEPTH(cv);
351	}	371	}
352		372
…		…
370		390
371	PUSHs (Nullsv);	391	PUSHs (Nullsv);
372	/* this loop was inspired by pp_caller */	392	/* this loop was inspired by pp_caller */
373	for (;;)	393	for (;;)
374	{	394	{
375	do	395	while (cxix >= 0)
376	{	396	{
377	PERL_CONTEXT *cx = &ccstk[cxix--];	397	PERL_CONTEXT *cx = &ccstk[cxix--];
378		398
379	if (CxTYPE(cx) == CXt_SUB)	399	if (CxTYPE(cx) == CXt_SUB)
380	{	400	{
381	CV *cv = cx->blk_sub.cv;	401	CV *cv = cx->blk_sub.cv;
382	if (CvDEPTH(cv))	402	if (CvDEPTH(cv))
383	{	403	{
384	#ifdef USE_THREADS
385	/XPUSHs ((SV )CvOWNER(cv));*/
386	/CvOWNER(cv) = 0;/
387	/error must unlock this cv etc.. etc.../
388	#endif
389	EXTEND (SP, CvDEPTH(cv)*2);	404	EXTEND (SP, CvDEPTH(cv)*2);
390		405
391	while (--CvDEPTH(cv))	406	while (--CvDEPTH(cv))
392	{	407	{
393	/* this tells the restore code to increment CvDEPTH */	408	/* this tells the restore code to increment CvDEPTH */
…		…
396	}	411	}
397		412
398	PUSHs ((SV *)CvPADLIST(cv));	413	PUSHs ((SV *)CvPADLIST(cv));
399	PUSHs ((SV *)cv);	414	PUSHs ((SV *)cv);
400		415
401	get_padlist (cv); /* this is a monster */	416	get_padlist (aTHX_ cv); /* this is a monster */
402	}	417	}
403	}	418	}
		419	#ifdef CXt_FORMAT
404	else if (CxTYPE(cx) == CXt_FORMAT)	420	else if (CxTYPE(cx) == CXt_FORMAT)
405	{	421	{
406	/* I never used formats, so how should I know how these are implemented? */	422	/* I never used formats, so how should I know how these are implemented? */
407	/* my bold guess is as a simple, plain sub... */	423	/* my bold guess is as a simple, plain sub... */
408	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	424	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
409	}	425	}
		426	#endif
410	}	427	}
411	while (cxix >= 0);
412		428
413	if (top_si->si_type == PERLSI_MAIN)	429	if (top_si->si_type == PERLSI_MAIN)
414	break;	430	break;
415		431
416	top_si = top_si->si_prev;	432	top_si = top_si->si_prev;
…		…
422	}	438	}
423		439
424	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	440	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
425	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	441	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
426	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	442	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
427
428	/* I have not the slightest idea of why av_reify is necessary */
429	/* but if it's missing the defav contents magically get replaced sometimes */
430	if (c->defav)
431	av_reify (c->defav);
432		443
433	c->dowarn = PL_dowarn;	444	c->dowarn = PL_dowarn;
434	c->in_eval = PL_in_eval;	445	c->in_eval = PL_in_eval;
435		446
436	c->curstackinfo = PL_curstackinfo;	447	c->curstackinfo = PL_curstackinfo;
437	c->curstack = PL_curstack;	448	c->curstack = PL_curstack;
438	c->mainstack = PL_mainstack;	449	c->mainstack = PL_mainstack;
439	c->stack_sp = PL_stack_sp;	450	c->stack_sp = PL_stack_sp;
440	c->op = PL_op;	451	c->op = PL_op;
441	c->curpad = PL_curpad;	452	c->curpad = PL_curpad;
		453	c->comppad = PL_comppad;
442	c->stack_base = PL_stack_base;	454	c->stack_base = PL_stack_base;
443	c->stack_max = PL_stack_max;	455	c->stack_max = PL_stack_max;
444	c->tmps_stack = PL_tmps_stack;	456	c->tmps_stack = PL_tmps_stack;
445	c->tmps_floor = PL_tmps_floor;	457	c->tmps_floor = PL_tmps_floor;
446	c->tmps_ix = PL_tmps_ix;	458	c->tmps_ix = PL_tmps_ix;
…		…
462	}	474	}
463		475
464	/*	476	/*
465	* allocate various perl stacks. This is an exact copy	477	* allocate various perl stacks. This is an exact copy
466	* of perl.c:init_stacks, except that it uses less memory	478	* of perl.c:init_stacks, except that it uses less memory
467	* on the assumption that coroutines do not usually need	479	* on the (sometimes correct) assumption that coroutines do
468	* a lot of stackspace.	480	* not usually need a lot of stackspace.
469	*/	481	*/
470	STATIC void	482	STATIC void
471	coro_init_stacks (pTHX)	483	coro_init_stacks (pTHX)
472	{	484	{
		485	LOCK;
		486
473	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	487	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
474	PL_curstackinfo->si_type = PERLSI_MAIN;	488	PL_curstackinfo->si_type = PERLSI_MAIN;
475	PL_curstack = PL_curstackinfo->si_stack;	489	PL_curstack = PL_curstackinfo->si_stack;
476	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	490	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
477		491
…		…
486		500
487	New(54,PL_markstack,16,I32);	501	New(54,PL_markstack,16,I32);
488	PL_markstack_ptr = PL_markstack;	502	PL_markstack_ptr = PL_markstack;
489	PL_markstack_max = PL_markstack + 16;	503	PL_markstack_max = PL_markstack + 16;
490		504
		505	#ifdef SET_MARK_OFFSET
491	SET_MARK_OFFSET;	506	SET_MARK_OFFSET;
		507	#endif
492		508
493	New(54,PL_scopestack,16,I32);	509	New(54,PL_scopestack,16,I32);
494	PL_scopestack_ix = 0;	510	PL_scopestack_ix = 0;
495	PL_scopestack_max = 16;	511	PL_scopestack_max = 16;
496		512
…		…
499	PL_savestack_max = 96;	515	PL_savestack_max = 96;
500		516
501	New(54,PL_retstack,8,OP*);	517	New(54,PL_retstack,8,OP*);
502	PL_retstack_ix = 0;	518	PL_retstack_ix = 0;
503	PL_retstack_max = 8;	519	PL_retstack_max = 8;
		520
		521	UNLOCK;
504	}	522	}
505		523
506	/*	524	/*
507	* destroy the stacks, the callchain etc...	525	* destroy the stacks, the callchain etc...
508	* still there is a memleak of 128 bytes...
509	*/	526	*/
510	STATIC void	527	STATIC void
511	destroy_stacks(pTHX)	528	destroy_stacks(pTHX)
512	{	529	{
		530	if (!IN_DESTRUCT)
		531	{
513	/* is this ugly, I ask? */	532	/* is this ugly, I ask? */
514	while (PL_scopestack_ix)	533	LEAVE_SCOPE (0);
515	LEAVE;
516		534
517	/* sure it is, but more important: is it correct?? :/ */	535	/* sure it is, but more important: is it correct?? :/ */
518	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
519	FREETMPS;	536	FREETMPS;
		537
		538	/POPSTACK_TO (PL_mainstack);//D//use/
		539	}
520		540
521	while (PL_curstackinfo->si_next)	541	while (PL_curstackinfo->si_next)
522	PL_curstackinfo = PL_curstackinfo->si_next;	542	PL_curstackinfo = PL_curstackinfo->si_next;
523		543
524	while (PL_curstackinfo)	544	while (PL_curstackinfo)
525	{	545	{
526	PERL_SI *p = PL_curstackinfo->si_prev;	546	PERL_SI *p = PL_curstackinfo->si_prev;
527		547
528	{	548	{ /D//remove/
529	dSP;	549	dSP;
530	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	550	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
531	PUTBACK; /* possibly superfluous */	551	PUTBACK; /* possibly superfluous */
532	}	552	}
533		553
534	dounwind(-1);	554	if (!IN_DESTRUCT)
535		555	{
		556	dounwind (-1);/D//remove/
536	SvREFCNT_dec(PL_curstackinfo->si_stack);	557	SvREFCNT_dec (PL_curstackinfo->si_stack);
		558	}
		559
537	Safefree(PL_curstackinfo->si_cxstack);	560	Safefree (PL_curstackinfo->si_cxstack);
538	Safefree(PL_curstackinfo);	561	Safefree (PL_curstackinfo);
539	PL_curstackinfo = p;	562	PL_curstackinfo = p;
540	}	563	}
541		564
542	Safefree(PL_tmps_stack);	565	Safefree (PL_tmps_stack);
543	Safefree(PL_markstack);	566	Safefree (PL_markstack);
544	Safefree(PL_scopestack);	567	Safefree (PL_scopestack);
545	Safefree(PL_savestack);	568	Safefree (PL_savestack);
546	Safefree(PL_retstack);	569	Safefree (PL_retstack);
547	}	570	}
548		571
549	static void	572	static void
550	allocate_stack (Coro__State ctx, int alloc)	573	allocate_stack (Coro__State ctx, int alloc)
551	{	574	{
…		…
554	New (0, stack, 1, coro_stack);	577	New (0, stack, 1, coro_stack);
555		578
556	stack->refcnt = 1;	579	stack->refcnt = 1;
557	stack->usecnt = 1;	580	stack->usecnt = 1;
558	stack->gencnt = ctx->gencnt = 0;	581	stack->gencnt = ctx->gencnt = 0;
		582
559	if (alloc)	583	if (alloc)
560	{	584	{
561	#ifdef HAVE_MMAP	585	#if HAVE_MMAP
562	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	586	stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */
563	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	587	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
564	if (stack->sptr == (void *)-1)	588	if (stack->sptr == (void *)-1)
565	#endif	589	#endif
566	{	590	{
567	/FIXME//D//* reasonable stack size! */	591	/FIXME//D//* reasonable stack size! */
568	stack->ssize = -4096 * sizeof (long);	592	stack->ssize = - (8192 * sizeof (long));
569	New (0, stack->sptr, 4096, long);	593	New (0, stack->sptr, 8192, long);
570	}	594	}
571	}	595	}
572	else	596	else
573	stack->sptr = 0;	597	stack->sptr = 0;
574		598
…		…
588	{	612	{
589	#ifdef HAVE_MMAP	613	#ifdef HAVE_MMAP
590	if (stack->ssize > 0 && stack->sptr)	614	if (stack->ssize > 0 && stack->sptr)
591	munmap (stack->sptr, stack->ssize);	615	munmap (stack->sptr, stack->ssize);
592	else	616	else
593	#else	617	#endif
594	Safefree (stack->sptr);	618	Safefree (stack->sptr);
595	#endif	619
596	Safefree (stack);	620	Safefree (stack);
597	}	621	}
598	else if (ctx->gencnt == stack->gencnt)	622	else if (ctx->gencnt == stack->gencnt)
599	--stack->usecnt;	623	--stack->usecnt;
600	}	624	}
…		…
604	setup_coro (void *arg)	628	setup_coro (void *arg)
605	{	629	{
606	/*	630	/*
607	* emulate part of the perl startup here.	631	* emulate part of the perl startup here.
608	*/	632	*/
		633	dTHX;
609	dSP;	634	dSP;
610	Coro__State ctx = (Coro__State)arg;	635	Coro__State ctx = (Coro__State)arg;
611	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	636	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
612		637
613	coro_init_stacks (aTHX);	638	coro_init_stacks (aTHX);
614	/PL_curcop = 0;/	639	/PL_curcop = 0;/
615	/PL_in_eval = PL_in_eval;/ /* inherit */	640	/PL_in_eval = PL_in_eval;/ /* inherit */
616	SvREFCNT_dec (GvAV (PL_defgv));	641	SvREFCNT_dec (GvAV (PL_defgv));
617	GvAV (PL_defgv) = ctx->args;	642	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
618		643
619	SPAGAIN;	644	SPAGAIN;
620		645
621	if (ctx->stack)	646	if (ctx->stack)
622	{	647	{
…		…
649	* that doesn't matter, though, since it is only	674	* that doesn't matter, though, since it is only
650	* pp_nextstate and we never return...	675	* pp_nextstate and we never return...
651	* ah yes, and I don't care anyways ;)	676	* ah yes, and I don't care anyways ;)
652	*/	677	*/
653	PUTBACK;	678	PUTBACK;
654	PL_op = pp_entersub();	679	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
655	SPAGAIN;	680	SPAGAIN;
656		681
657	ENTER; /* necessary e.g. for dounwind */	682	ENTER; /* necessary e.g. for dounwind */
658	}	683	}
659	}	684	}
…		…
662	continue_coro (void *arg)	687	continue_coro (void *arg)
663	{	688	{
664	/*	689	/*
665	* this is a _very_ stripped down perl interpreter ;)	690	* this is a _very_ stripped down perl interpreter ;)
666	*/	691	*/
		692	dTHX;
667	Coro__State ctx = (Coro__State)arg;	693	Coro__State ctx = (Coro__State)arg;
		694	JMPENV coro_start_env;
668		695
669	/FIXME//* must set up top_env here */	696	PL_top_env = &ctx->start_env;
		697
670	ctx->cursp = 0;	698	ctx->cursp = 0;
671	PL_op = PL_op->op_next;	699	PL_op = PL_op->op_next;
672	CALLRUNOPS(aTHX);	700	CALLRUNOPS(aTHX);
673		701
674	abort ();	702	abort ();
675	}	703	}
676		704
677	STATIC void	705	STATIC void
678	transfer(pTHX_ struct coro prev, struct coro next, int flags)	706	transfer (pTHX_ struct coro prev, struct coro next, int flags)
679	{	707	{
680	dSP;
681	dSTACKLEVEL;	708	dSTACKLEVEL;
682		709
683	if (prev != next)	710	if (prev != next)
684	{	711	{
685	if (next->mainstack)	712	if (next->mainstack)
686	{	713	{
		714	LOCK;
687	SAVE (prev, flags);	715	SAVE (prev, flags);
688	LOAD (next);	716	LOAD (next);
		717	UNLOCK;
689		718
690	/* mark this state as in-use */	719	/* mark this state as in-use */
691	next->mainstack = 0;	720	next->mainstack = 0;
692	next->tmps_ix = -2;	721	next->tmps_ix = -2;
693		722
…		…
712	continue_coro, (void *)next,	741	continue_coro, (void *)next,
713	next->stack->sptr, labs (next->stack->ssize));	742	next->stack->sptr, labs (next->stack->ssize));
714	}	743	}
715		744
716	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	745	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		746	prev->cursp = stacklevel;
		747	/* don't add any code here */
717	}	748	}
718		749	else
		750	next->cursp = stacklevel;
719	}	751	}
720	else if (next->tmps_ix == -2)	752	else if (next->tmps_ix == -2)
721	croak ("tried to transfer to running coroutine");	753	croak ("tried to transfer to running coroutine");
722	else	754	else
723	{	755	{
		756	LOCK;
724	SAVE (prev, -1); /* first get rid of the old state */	757	SAVE (prev, -1); /* first get rid of the old state */
		758	UNLOCK;
725		759
726	if (flags & TRANSFER_SAVE_CCTXT)	760	if (flags & TRANSFER_SAVE_CCTXT)
727	{	761	{
728	if (!prev->stack)	762	if (!prev->stack)
729	allocate_stack (prev, 0);	763	allocate_stack (prev, 0);
730		764
731	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	765	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
732	{	766	{
		767	PL_top_env = &next->start_env;
		768
733	setup_coro (next);	769	setup_coro (next);
		770	next->cursp = stacklevel;
734		771
735	prev->stack->refcnt++;	772	prev->stack->refcnt++;
736	prev->stack->usecnt++;	773	prev->stack->usecnt++;
737	next->stack = prev->stack;	774	next->stack = prev->stack;
738	next->gencnt = prev->gencnt;	775	next->gencnt = prev->gencnt;
739	}	776	}
740	else	777	else
741	{	778	{
		779	assert (!next->stack);
742	allocate_stack (next, 1);	780	allocate_stack (next, 1);
743	coro_create (&(next->stack->cctx),	781	coro_create (&(next->stack->cctx),
744	setup_coro, (void *)next,	782	setup_coro, (void *)next,
745	next->stack->sptr, labs (next->stack->ssize));	783	next->stack->sptr, labs (next->stack->ssize));
746	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	784	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		785	prev->cursp = stacklevel;
		786	/* don't add any code here */
747	}	787	}
748	}	788	}
749	else	789	else
		790	{
750	setup_coro (next);	791	setup_coro (next);
		792	next->cursp = stacklevel;
		793	}
751	}	794	}
752	}	795	}
753		796
754	next->cursp = stacklevel;	797	LOCK;
755	}	798	if (coro_mortal)
756
757	static struct coro *
758	sv_to_coro (SV arg, const char funcname, const char *varname)
759	{
760	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
761	{	799	{
		800	SvREFCNT_dec (coro_mortal);
		801	coro_mortal = 0;
		802	}
		803	UNLOCK;
		804	}
		805
		806	#define SV_CORO(sv,func) \
		807	do { \
		808	if (SvROK (sv)) \
		809	sv = SvRV (sv); \
		810	\
		811	if (SvTYPE (sv) == SVt_PVHV) \
		812	{ \
762	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	813	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
763		814	\
764	if (!he)	815	if (!he) \
765	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);	816	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
766		817	\
767	arg = HeVAL(he);	818	(sv) = SvRV (HeVAL(he)); \
768	}	819	} \
769		820	\
770	/* must also be changed inside Coro::Cont::yield */	821	/* must also be changed inside Coro::Cont::yield */ \
771	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	822	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
772	return (struct coro ) SvIV((SV)SvRV(arg));
773	else
774	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	823	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		824	\
		825	} while(0)
		826
		827	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		828
		829	static void
		830	api_transfer(pTHX_ SV prev, SV next, int flags)
		831	{
		832	SV_CORO (prev, "Coro::transfer");
		833	SV_CORO (next, "Coro::transfer");
		834
		835	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		836	}
		837
		838	/ Coro ******************************************************************/
		839
		840	#define PRIO_MAX 3
		841	#define PRIO_HIGH 1
		842	#define PRIO_NORMAL 0
		843	#define PRIO_LOW -1
		844	#define PRIO_IDLE -3
		845	#define PRIO_MIN -4
		846
		847	/* for Coro.pm */
		848	static GV coro_current, coro_idle;
		849	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		850	static int coro_nready;
		851
		852	static void
		853	coro_enq (pTHX_ SV *sv)
		854	{
		855	if (SvTYPE (sv) == SVt_PVHV)
		856	{
		857	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		858	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		859
		860	prio = prio > PRIO_MAX ? PRIO_MAX
		861	: prio < PRIO_MIN ? PRIO_MIN
		862	: prio;
		863
		864	av_push (coro_ready [prio - PRIO_MIN], sv);
		865	coro_nready++;
		866
		867	return;
		868	}
		869
		870	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		871	}
		872
		873	static SV *
		874	coro_deq (pTHX_ int min_prio)
		875	{
		876	int prio = PRIO_MAX - PRIO_MIN;
		877
		878	min_prio -= PRIO_MIN;
		879	if (min_prio < 0)
		880	min_prio = 0;
		881
		882	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		883	if (av_len (coro_ready[prio]) >= 0)
		884	{
		885	coro_nready--;
		886	return av_shift (coro_ready[prio]);
		887	}
		888
		889	return 0;
		890	}
		891
		892	static void
		893	api_ready (SV *coro)
		894	{
		895	dTHX;
		896
		897	if (SvROK (coro))
		898	coro = SvRV (coro);
		899
		900	LOCK;
		901	coro_enq (aTHX_ SvREFCNT_inc (coro));
		902	UNLOCK;
		903	}
		904
		905	static void
		906	api_schedule (void)
		907	{
		908	dTHX;
		909
		910	SV prev, next;
		911
		912	LOCK;
		913
		914	prev = SvRV (GvSV (coro_current));
		915	next = coro_deq (aTHX_ PRIO_MIN);
		916
		917	if (!next)
		918	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		919
		920	/* free this only after the transfer */
		921	coro_mortal = prev;
		922	SV_CORO (prev, "Coro::schedule");
		923
		924	SvRV (GvSV (coro_current)) = next;
		925
		926	SV_CORO (next, "Coro::schedule");
		927
		928	UNLOCK;
		929
		930	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		931	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		932	}
		933
		934	static void
		935	api_cede (void)
		936	{
		937	dTHX;
		938
		939	LOCK;
		940	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		941	UNLOCK;
		942
		943	api_schedule ();
775	}	944	}
776		945
777	MODULE = Coro::State PACKAGE = Coro::State	946	MODULE = Coro::State PACKAGE = Coro::State
778		947
779	PROTOTYPES: ENABLE	948	PROTOTYPES: ENABLE
780		949
781	BOOT:	950	BOOT:
782	{ /* {} necessary for stoopid perl-5.6.x */	951	{ /* {} necessary for stoopid perl-5.6.x */
		952	#ifdef USE_ITHREADS
		953	MUTEX_INIT (&coro_mutex);
		954	#endif
		955
783	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	956	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
784	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	957	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
785	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	958	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
786		959
787	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	960	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
788	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	961	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
789	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	962	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
790	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	963	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
791		964
792	if (!padlist_cache)
793	padlist_cache = newHV ();
794
795	main_mainstack = PL_mainstack;	965	main_mainstack = PL_mainstack;
		966
		967	coroapi.ver = CORO_API_VERSION;
		968	coroapi.transfer = api_transfer;
796	}	969	}
797		970
798	Coro::State	971	Coro::State
799	_newprocess(args)	972	_newprocess(args)
800	SV * args	973	SV * args
…		…
803	Coro__State coro;	976	Coro__State coro;
804		977
805	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	978	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
806	croak ("Coro::State::_newprocess expects an arrayref");	979	croak ("Coro::State::_newprocess expects an arrayref");
807		980
808	New (0, coro, 1, struct coro);	981	Newz (0, coro, 1, struct coro);
809		982
810	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	983	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
811	coro->mainstack = 0; /* actual work is done inside transfer */	984	coro->mainstack = 0; /* actual work is done inside transfer */
812	coro->stack = 0;	985	coro->stack = 0;
813		986
		987	/* same as JMPENV_BOOTSTRAP */
		988	/* we might be able to recycle start_env, but safe is safe */
		989	//Zero(&coro->start_env, 1, JMPENV);
		990	coro->start_env.je_ret = -1;
		991	coro->start_env.je_mustcatch = TRUE;
		992
814	RETVAL = coro;	993	RETVAL = coro;
815	OUTPUT:	994	OUTPUT:
816	RETVAL	995	RETVAL
817		996
818	void	997	void
819	transfer(prev, next, flags)	998	transfer(prev, next, flags)
820	Coro::State_or_hashref prev	999	SV *prev
821	Coro::State_or_hashref next	1000	SV *next
822	int flags	1001	int flags
823	PROTOTYPE: @	1002	PROTOTYPE: @
824	CODE:	1003	CODE:
825	PUTBACK;	1004	PUTBACK;
		1005	SV_CORO (next, "Coro::transfer");
		1006	SV_CORO (prev, "Coro::transfer");
826	transfer (aTHX_ prev, next, flags);	1007	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
827	SPAGAIN;	1008	SPAGAIN;
828		1009
829	void	1010	void
830	DESTROY(coro)	1011	DESTROY(coro)
831	Coro::State coro	1012	Coro::State coro
…		…
833		1014
834	if (coro->mainstack && coro->mainstack != main_mainstack)	1015	if (coro->mainstack && coro->mainstack != main_mainstack)
835	{	1016	{
836	struct coro temp;	1017	struct coro temp;
837		1018
		1019	PUTBACK;
838	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1020	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
839	LOAD(aTHX_ coro);	1021	LOAD(aTHX_ coro);
		1022	SPAGAIN;
840		1023
841	destroy_stacks (aTHX);	1024	destroy_stacks (aTHX);
842		1025
843	LOAD((&temp)); /* this will get rid of defsv etc.. */	1026	LOAD((&temp)); /* this will get rid of defsv etc.. */
		1027	SPAGAIN;
844		1028
845	coro->mainstack = 0;	1029	coro->mainstack = 0;
846	}	1030	}
847		1031
848	deallocate_stack (coro);	1032	deallocate_stack (coro);
849		1033	SvREFCNT_dec (coro->args);
850	Safefree (coro);	1034	Safefree (coro);
851
852	void
853	flush()
854	CODE:
855	#ifdef MAY_FLUSH
856	flush_padlist_cache ();
857	#endif
858		1035
859	void	1036	void
860	_exit(code)	1037	_exit(code)
861	int code	1038	int code
862	PROTOTYPE: $	1039	PROTOTYPE: $
863	CODE:	1040	CODE:
864	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
865	_exit (code);	1041	_exit (code);
866	#else
867	signal (SIGTERM, SIG_DFL);
868	raise (SIGTERM);
869	exit (code);
870	#endif
871		1042
872	MODULE = Coro::State PACKAGE = Coro::Cont	1043	MODULE = Coro::State PACKAGE = Coro::Cont
873		1044
874	# this is slightly dirty (should expose a c-level api)	1045	# this is slightly dirty (should expose a c-level api)
875		1046
…		…
881	SV *sv;	1052	SV *sv;
882	AV *defav = GvAV (PL_defgv);	1053	AV *defav = GvAV (PL_defgv);
883	struct coro prev, next;	1054	struct coro prev, next;
884		1055
885	if (!returnstk)	1056	if (!returnstk)
886	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1057	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
887		1058
888	/* set up @_ -- ugly */	1059	/* set up @_ -- ugly */
889	av_clear (defav);	1060	av_clear (defav);
890	av_fill (defav, items - 1);	1061	av_fill (defav, items - 1);
891	while (items--)	1062	while (items--)
…		…
903		1074
904	# this is slightly dirty (should expose a c-level api)	1075	# this is slightly dirty (should expose a c-level api)
905		1076
906	BOOT:	1077	BOOT:
907	{	1078	{
		1079	int i;
		1080	HV *stash = gv_stashpv ("Coro", TRUE);
		1081
		1082	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1083	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1084	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1085	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1086	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1087	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1088
908	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1089	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
909	coro_ready = newAV ();
910	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1090	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1091
		1092	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1093	coro_ready[i] = newAV ();
		1094
		1095	{
		1096	SV *sv = perl_get_sv("Coro::API", 1);
		1097
		1098	coroapi.schedule = api_schedule;
		1099	coroapi.cede = api_cede;
		1100	coroapi.ready = api_ready;
		1101	coroapi.nready = &coro_nready;
		1102	coroapi.current = coro_current;
		1103
		1104	GCoroAPI = &coroapi;
		1105	sv_setiv(sv, (IV)&coroapi);
		1106	SvREADONLY_on(sv);
		1107	}
911	}	1108	}
		1109
		1110	#if !PERL_MICRO
912		1111
913	void	1112	void
914	ready(self)	1113	ready(self)
915	SV * self	1114	SV * self
		1115	PROTOTYPE: $
916	CODE:	1116	CODE:
917	av_push (coro_ready, SvREFCNT_inc (self));	1117	api_ready (self);
		1118
		1119	#endif
		1120
		1121	int
		1122	nready(...)
		1123	PROTOTYPE:
		1124	CODE:
		1125	RETVAL = coro_nready;
		1126	OUTPUT:
		1127	RETVAL
918		1128
919	void	1129	void
920	schedule(...)	1130	schedule(...)
921	ALIAS:	1131	PROTOTYPE:
922	cede = 1
923	CODE:	1132	CODE:
924	SV *prev = GvSV (coro_current);	1133	api_schedule ();
925	SV *next = av_shift (coro_ready);
926		1134
927	if (next == &PL_sv_undef)	1135	void
928	next = SvREFCNT_inc (GvSV (coro_idle));	1136	cede(...)
		1137	PROTOTYPE:
		1138	CODE:
		1139	api_cede ();
929		1140
930	if (ix)
931	av_push (coro_ready, SvREFCNT_inc (prev));
932
933	GvSV (coro_current) = SvREFCNT_inc (next);
934	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),
935	sv_to_coro (next, "Coro::schedule", "next coroutine"),
936	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
937	SvREFCNT_dec (next);
938	SvREFCNT_dec (prev);
939

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Comparing Coro/Coro/State.xs (file contents): Revision 1.21 by root, Sat Aug 11 19:59:19 2001 UTC vs. Revision 1.58 by pcg, Fri May 14 13:25:09 2004 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.21 by root, Sat Aug 11 19:59:19 2001 UTC vs.
Revision 1.58 by pcg, Fri May 14 13:25:09 2004 UTC