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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.22 by root, Sat Aug 11 23:10:56 2001 UTC vs.
Revision 1.60 by root, Mon Aug 9 02:41:27 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	/* mostly copied from op.c:cv_clone2 */	142	/* mostly copied from op.c:cv_clone2 */
117	STATIC AV *	143	STATIC AV *
118	clone_padlist (AV *protopadlist)	144	clone_padlist (pTHX_ AV *protopadlist)
119	{	145	{
120	AV *av;	146	AV *av;
121	I32 ix;	147	I32 ix;
122	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	148	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
123	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	149	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
147	AvFLAGS (av) = AVf_REIFY;	173	AvFLAGS (av) = AVf_REIFY;
148		174
149	for (ix = fpad; ix > 0; ix--)	175	for (ix = fpad; ix > 0; ix--)
150	{	176	{
151	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	177	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		178
152	if (namesv && namesv != &PL_sv_undef)	179	if (namesv && namesv != &PL_sv_undef)
153	{	180	{
154	char name = SvPVX (namesv); / XXX */	181	char name = SvPVX (namesv); / XXX */
		182
155	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	183	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
156	{ /* lexical from outside? */	184	{ /* lexical from outside? */
157	npad[ix] = SvREFCNT_inc (ppad[ix]);	185	npad[ix] = SvREFCNT_inc (ppad[ix]);
158	}	186	}
159	else	187	else
…		…
165	sv = (SV *) newAV ();	193	sv = (SV *) newAV ();
166	else if (*name == '%')	194	else if (*name == '%')
167	sv = (SV *) newHV ();	195	sv = (SV *) newHV ();
168	else	196	else
169	sv = NEWSV (0, 0);	197	sv = NEWSV (0, 0);
		198
		199	#ifdef SvPADBUSY
170	if (!SvPADBUSY (sv))	200	if (!SvPADBUSY (sv))
		201	#endif
171	SvPADMY_on (sv);	202	SvPADMY_on (sv);
		203
172	npad[ix] = sv;	204	npad[ix] = sv;
173	}	205	}
174	}	206	}
175	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	207	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
176	{	208	{
…		…
205	#endif	237	#endif
206		238
207	return newpadlist;	239	return newpadlist;
208	}	240	}
209		241
210	#ifdef MAY_FLUSH	242	STATIC void
211	STATIC AV *
212	free_padlist (AV *padlist)	243	free_padlist (pTHX_ AV *padlist)
213	{	244	{
214	/* may be during global destruction */	245	/* may be during global destruction */
215	if (SvREFCNT(padlist))	246	if (SvREFCNT (padlist))
216	{	247	{
217	I32 i = AvFILLp(padlist);	248	I32 i = AvFILLp (padlist);
218	while (i >= 0)	249	while (i >= 0)
219	{	250	{
220	SV **svp = av_fetch(padlist, i--, FALSE);	251	SV **svp = av_fetch (padlist, i--, FALSE);
221	SV sv = svp ? svp : Nullsv;
222	if (sv)	252	if (svp)
		253	{
		254	SV *sv;
		255	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
223	SvREFCNT_dec(sv);	256	SvREFCNT_dec (sv);
		257
		258	SvREFCNT_dec (*svp);
		259	}
224	}	260	}
225		261
226	SvREFCNT_dec((SV*)padlist);	262	SvREFCNT_dec ((SV*)padlist);
227	}	263	}
228	}	264	}
229	#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};
230		280
231	/* the next two functions merely cache the padlists */	281	/* the next two functions merely cache the padlists */
232	STATIC void	282	STATIC void
233	get_padlist (CV *cv)	283	get_padlist (pTHX_ CV *cv)
234	{	284	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	285	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		286
237	if (he && AvFILLp ((AV )he) >= 0)	287	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
238	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	288	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
239	else	289	else
240	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	290	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
241	}	291	}
242		292
243	STATIC void	293	STATIC void
244	put_padlist (CV *cv)	294	put_padlist (pTHX_ CV *cv)
245	{	295	{
246	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	296	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
247		297
248	if (SvTYPE (*he) != SVt_PVAV)	298	if (!mg)
249	{	299	{
250	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;
251	he = (SV )newAV ();	303	mg->mg_obj = (SV *)newAV ();
252	}	304	}
253		305
254	av_push ((AV )he, (SV *)CvPADLIST (cv));	306	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
255	}	307	}
256
257	#ifdef MAY_FLUSH
258	STATIC void
259	flush_padlist_cache ()
260	{
261	HV *hv = padlist_cache;
262	padlist_cache = newHV ();
263
264	if (hv_iterinit (hv))
265	{
266	HE *he;
267	AV *padlist;
268
269	while (!!(he = hv_iternext (hv)))
270	{
271	AV av = (AV )HeVAL(he);
272
273	/* casting is fun. */
274	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
275	free_padlist (padlist);
276	}
277	}
278
279	SvREFCNT_dec (hv);
280	}
281	#endif
282		308
283	#define SB do {	309	#define SB do {
284	#define SE } while (0)	310	#define SE } while (0)
285		311
286	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	312	#define LOAD(state) load_state(aTHX_ (state));
287	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	313	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
288		314
289	#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
290		316
291	static void	317	static void
292	load_state(pTHX_ Coro__State c)	318	load_state(pTHX_ Coro__State c)
293	{	319	{
294	PL_dowarn = c->dowarn;	320	PL_dowarn = c->dowarn;
…		…
298	PL_curstack = c->curstack;	324	PL_curstack = c->curstack;
299	PL_mainstack = c->mainstack;	325	PL_mainstack = c->mainstack;
300	PL_stack_sp = c->stack_sp;	326	PL_stack_sp = c->stack_sp;
301	PL_op = c->op;	327	PL_op = c->op;
302	PL_curpad = c->curpad;	328	PL_curpad = c->curpad;
		329	PL_comppad = c->comppad;
303	PL_stack_base = c->stack_base;	330	PL_stack_base = c->stack_base;
304	PL_stack_max = c->stack_max;	331	PL_stack_max = c->stack_max;
305	PL_tmps_stack = c->tmps_stack;	332	PL_tmps_stack = c->tmps_stack;
306	PL_tmps_floor = c->tmps_floor;	333	PL_tmps_floor = c->tmps_floor;
307	PL_tmps_ix = c->tmps_ix;	334	PL_tmps_ix = c->tmps_ix;
…		…
334	{	361	{
335	AV padlist = (AV )POPs;	362	AV padlist = (AV )POPs;
336		363
337	if (padlist)	364	if (padlist)
338	{	365	{
339	put_padlist (cv); /* mark this padlist as available */	366	put_padlist (aTHX_ cv); /* mark this padlist as available */
340	CvPADLIST(cv) = padlist;	367	CvPADLIST(cv) = padlist;
341	#ifdef USE_THREADS
342	/CvOWNER(cv) = (struct perl_thread )POPs;*/
343	#endif
344	}	368	}
345		369
346	++CvDEPTH(cv);	370	++CvDEPTH(cv);
347	}	371	}
348		372
…		…
366		390
367	PUSHs (Nullsv);	391	PUSHs (Nullsv);
368	/* this loop was inspired by pp_caller */	392	/* this loop was inspired by pp_caller */
369	for (;;)	393	for (;;)
370	{	394	{
371	do	395	while (cxix >= 0)
372	{	396	{
373	PERL_CONTEXT *cx = &ccstk[cxix--];	397	PERL_CONTEXT *cx = &ccstk[cxix--];
374		398
375	if (CxTYPE(cx) == CXt_SUB)	399	if (CxTYPE(cx) == CXt_SUB)
376	{	400	{
377	CV *cv = cx->blk_sub.cv;	401	CV *cv = cx->blk_sub.cv;
378	if (CvDEPTH(cv))	402	if (CvDEPTH(cv))
379	{	403	{
380	#ifdef USE_THREADS
381	/XPUSHs ((SV )CvOWNER(cv));*/
382	/CvOWNER(cv) = 0;/
383	/error must unlock this cv etc.. etc.../
384	#endif
385	EXTEND (SP, CvDEPTH(cv)*2);	404	EXTEND (SP, CvDEPTH(cv)*2);
386		405
387	while (--CvDEPTH(cv))	406	while (--CvDEPTH(cv))
388	{	407	{
389	/* this tells the restore code to increment CvDEPTH */	408	/* this tells the restore code to increment CvDEPTH */
…		…
392	}	411	}
393		412
394	PUSHs ((SV *)CvPADLIST(cv));	413	PUSHs ((SV *)CvPADLIST(cv));
395	PUSHs ((SV *)cv);	414	PUSHs ((SV *)cv);
396		415
397	get_padlist (cv); /* this is a monster */	416	get_padlist (aTHX_ cv); /* this is a monster */
398	}	417	}
399	}	418	}
		419	#ifdef CXt_FORMAT
400	else if (CxTYPE(cx) == CXt_FORMAT)	420	else if (CxTYPE(cx) == CXt_FORMAT)
401	{	421	{
402	/* 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? */
403	/* my bold guess is as a simple, plain sub... */	423	/* my bold guess is as a simple, plain sub... */
404	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");
405	}	425	}
		426	#endif
406	}	427	}
407	while (cxix >= 0);
408		428
409	if (top_si->si_type == PERLSI_MAIN)	429	if (top_si->si_type == PERLSI_MAIN)
410	break;	430	break;
411		431
412	top_si = top_si->si_prev;	432	top_si = top_si->si_prev;
…		…
418	}	438	}
419		439
420	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;
421	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	441	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	442	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
423
424	/* I have not the slightest idea of why av_reify is necessary */
425	/* but if it's missing the defav contents magically get replaced sometimes */
426	if (c->defav)
427	av_reify (c->defav);
428		443
429	c->dowarn = PL_dowarn;	444	c->dowarn = PL_dowarn;
430	c->in_eval = PL_in_eval;	445	c->in_eval = PL_in_eval;
431		446
432	c->curstackinfo = PL_curstackinfo;	447	c->curstackinfo = PL_curstackinfo;
433	c->curstack = PL_curstack;	448	c->curstack = PL_curstack;
434	c->mainstack = PL_mainstack;	449	c->mainstack = PL_mainstack;
435	c->stack_sp = PL_stack_sp;	450	c->stack_sp = PL_stack_sp;
436	c->op = PL_op;	451	c->op = PL_op;
437	c->curpad = PL_curpad;	452	c->curpad = PL_curpad;
		453	c->comppad = PL_comppad;
438	c->stack_base = PL_stack_base;	454	c->stack_base = PL_stack_base;
439	c->stack_max = PL_stack_max;	455	c->stack_max = PL_stack_max;
440	c->tmps_stack = PL_tmps_stack;	456	c->tmps_stack = PL_tmps_stack;
441	c->tmps_floor = PL_tmps_floor;	457	c->tmps_floor = PL_tmps_floor;
442	c->tmps_ix = PL_tmps_ix;	458	c->tmps_ix = PL_tmps_ix;
…		…
458	}	474	}
459		475
460	/*	476	/*
461	* allocate various perl stacks. This is an exact copy	477	* allocate various perl stacks. This is an exact copy
462	* of perl.c:init_stacks, except that it uses less memory	478	* of perl.c:init_stacks, except that it uses less memory
463	* on the assumption that coroutines do not usually need	479	* on the (sometimes correct) assumption that coroutines do
464	* a lot of stackspace.	480	* not usually need a lot of stackspace.
465	*/	481	*/
466	STATIC void	482	STATIC void
467	coro_init_stacks (pTHX)	483	coro_init_stacks (pTHX)
468	{	484	{
		485	LOCK;
		486
469	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	487	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
470	PL_curstackinfo->si_type = PERLSI_MAIN;	488	PL_curstackinfo->si_type = PERLSI_MAIN;
471	PL_curstack = PL_curstackinfo->si_stack;	489	PL_curstack = PL_curstackinfo->si_stack;
472	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	490	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
473		491
…		…
482		500
483	New(54,PL_markstack,16,I32);	501	New(54,PL_markstack,16,I32);
484	PL_markstack_ptr = PL_markstack;	502	PL_markstack_ptr = PL_markstack;
485	PL_markstack_max = PL_markstack + 16;	503	PL_markstack_max = PL_markstack + 16;
486		504
		505	#ifdef SET_MARK_OFFSET
487	SET_MARK_OFFSET;	506	SET_MARK_OFFSET;
		507	#endif
488		508
489	New(54,PL_scopestack,16,I32);	509	New(54,PL_scopestack,16,I32);
490	PL_scopestack_ix = 0;	510	PL_scopestack_ix = 0;
491	PL_scopestack_max = 16;	511	PL_scopestack_max = 16;
492		512
…		…
495	PL_savestack_max = 96;	515	PL_savestack_max = 96;
496		516
497	New(54,PL_retstack,8,OP*);	517	New(54,PL_retstack,8,OP*);
498	PL_retstack_ix = 0;	518	PL_retstack_ix = 0;
499	PL_retstack_max = 8;	519	PL_retstack_max = 8;
		520
		521	UNLOCK;
500	}	522	}
501		523
502	/*	524	/*
503	* destroy the stacks, the callchain etc...	525	* destroy the stacks, the callchain etc...
504	* still there is a memleak of 128 bytes...
505	*/	526	*/
506	STATIC void	527	STATIC void
507	destroy_stacks(pTHX)	528	destroy_stacks(pTHX)
508	{	529	{
		530	if (!IN_DESTRUCT)
		531	{
509	/* is this ugly, I ask? */	532	/* is this ugly, I ask? */
510	while (PL_scopestack_ix)	533	LEAVE_SCOPE (0);
511	LEAVE;
512		534
513	/* sure it is, but more important: is it correct?? :/ */	535	/* sure it is, but more important: is it correct?? :/ */
514	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
515	FREETMPS;	536	FREETMPS;
		537
		538	/POPSTACK_TO (PL_mainstack);//D//use/
		539	}
516		540
517	while (PL_curstackinfo->si_next)	541	while (PL_curstackinfo->si_next)
518	PL_curstackinfo = PL_curstackinfo->si_next;	542	PL_curstackinfo = PL_curstackinfo->si_next;
519		543
520	while (PL_curstackinfo)	544	while (PL_curstackinfo)
521	{	545	{
522	PERL_SI *p = PL_curstackinfo->si_prev;	546	PERL_SI *p = PL_curstackinfo->si_prev;
523		547
524	{	548	{ /D//remove/
525	dSP;	549	dSP;
526	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	550	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
527	PUTBACK; /* possibly superfluous */	551	PUTBACK; /* possibly superfluous */
528	}	552	}
529		553
530	dounwind(-1);	554	if (!IN_DESTRUCT)
531		555	{
		556	dounwind (-1);/D//remove/
532	SvREFCNT_dec(PL_curstackinfo->si_stack);	557	SvREFCNT_dec (PL_curstackinfo->si_stack);
		558	}
		559
533	Safefree(PL_curstackinfo->si_cxstack);	560	Safefree (PL_curstackinfo->si_cxstack);
534	Safefree(PL_curstackinfo);	561	Safefree (PL_curstackinfo);
535	PL_curstackinfo = p;	562	PL_curstackinfo = p;
536	}	563	}
537		564
538	Safefree(PL_tmps_stack);	565	Safefree (PL_tmps_stack);
539	Safefree(PL_markstack);	566	Safefree (PL_markstack);
540	Safefree(PL_scopestack);	567	Safefree (PL_scopestack);
541	Safefree(PL_savestack);	568	Safefree (PL_savestack);
542	Safefree(PL_retstack);	569	Safefree (PL_retstack);
543	}	570	}
544		571
545	static void	572	static void
546	allocate_stack (Coro__State ctx, int alloc)	573	allocate_stack (Coro__State ctx, int alloc)
547	{	574	{
…		…
550	New (0, stack, 1, coro_stack);	577	New (0, stack, 1, coro_stack);
551		578
552	stack->refcnt = 1;	579	stack->refcnt = 1;
553	stack->usecnt = 1;	580	stack->usecnt = 1;
554	stack->gencnt = ctx->gencnt = 0;	581	stack->gencnt = ctx->gencnt = 0;
		582
555	if (alloc)	583	if (alloc)
556	{	584	{
557	#ifdef HAVE_MMAP	585	#if HAVE_MMAP
558	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 */
559	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);
560	if (stack->sptr == (void *)-1)	588	if (stack->sptr == (void *)-1)
561	#endif	589	#endif
562	{	590	{
563	/FIXME//D//* reasonable stack size! */	591	/FIXME//D//* reasonable stack size! */
564	stack->ssize = -4096 * sizeof (long);	592	stack->ssize = - (8192 * sizeof (long));
565	New (0, stack->sptr, 4096, long);	593	New (0, stack->sptr, 8192, long);
566	}	594	}
567	}	595	}
568	else	596	else
569	stack->sptr = 0;	597	stack->sptr = 0;
570		598
…		…
584	{	612	{
585	#ifdef HAVE_MMAP	613	#ifdef HAVE_MMAP
586	if (stack->ssize > 0 && stack->sptr)	614	if (stack->ssize > 0 && stack->sptr)
587	munmap (stack->sptr, stack->ssize);	615	munmap (stack->sptr, stack->ssize);
588	else	616	else
589	#else	617	#endif
590	Safefree (stack->sptr);	618	Safefree (stack->sptr);
591	#endif	619
592	Safefree (stack);	620	Safefree (stack);
593	}	621	}
594	else if (ctx->gencnt == stack->gencnt)	622	else if (ctx->gencnt == stack->gencnt)
595	--stack->usecnt;	623	--stack->usecnt;
596	}	624	}
…		…
600	setup_coro (void *arg)	628	setup_coro (void *arg)
601	{	629	{
602	/*	630	/*
603	* emulate part of the perl startup here.	631	* emulate part of the perl startup here.
604	*/	632	*/
		633	dTHX;
605	dSP;	634	dSP;
606	Coro__State ctx = (Coro__State)arg;	635	Coro__State ctx = (Coro__State)arg;
607	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	636	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
608		637
609	coro_init_stacks (aTHX);	638	coro_init_stacks (aTHX);
610	/PL_curcop = 0;/	639	/PL_curcop = 0;/
611	/PL_in_eval = PL_in_eval;/ /* inherit */	640	/PL_in_eval = PL_in_eval;/ /* inherit */
612	SvREFCNT_dec (GvAV (PL_defgv));	641	SvREFCNT_dec (GvAV (PL_defgv));
613	GvAV (PL_defgv) = ctx->args;	642	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
614		643
615	SPAGAIN;	644	SPAGAIN;
616		645
617	if (ctx->stack)	646	if (ctx->stack)
618	{	647	{
…		…
645	* that doesn't matter, though, since it is only	674	* that doesn't matter, though, since it is only
646	* pp_nextstate and we never return...	675	* pp_nextstate and we never return...
647	* ah yes, and I don't care anyways ;)	676	* ah yes, and I don't care anyways ;)
648	*/	677	*/
649	PUTBACK;	678	PUTBACK;
650	PL_op = pp_entersub();	679	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
651	SPAGAIN;	680	SPAGAIN;
652		681
653	ENTER; /* necessary e.g. for dounwind */	682	ENTER; /* necessary e.g. for dounwind */
654	}	683	}
655	}	684	}
…		…
658	continue_coro (void *arg)	687	continue_coro (void *arg)
659	{	688	{
660	/*	689	/*
661	* this is a _very_ stripped down perl interpreter ;)	690	* this is a _very_ stripped down perl interpreter ;)
662	*/	691	*/
		692	dTHX;
663	Coro__State ctx = (Coro__State)arg;	693	Coro__State ctx = (Coro__State)arg;
		694	JMPENV coro_start_env;
664		695
665	/FIXME//* must set up top_env here */	696	PL_top_env = &ctx->start_env;
		697
666	ctx->cursp = 0;	698	ctx->cursp = 0;
667	PL_op = PL_op->op_next;	699	PL_op = PL_op->op_next;
668	CALLRUNOPS(aTHX);	700	CALLRUNOPS(aTHX);
669		701
670	abort ();	702	abort ();
671	}	703	}
672		704
673	STATIC void	705	STATIC void
674	transfer(pTHX_ struct coro prev, struct coro next, int flags)	706	transfer (pTHX_ struct coro prev, struct coro next, int flags)
675	{	707	{
676	dSP;
677	dSTACKLEVEL;	708	dSTACKLEVEL;
678		709
679	if (prev != next)	710	if (prev != next)
680	{	711	{
681	if (next->mainstack)	712	if (next->mainstack)
682	{	713	{
		714	LOCK;
683	SAVE (prev, flags);	715	SAVE (prev, flags);
684	LOAD (next);	716	LOAD (next);
		717	UNLOCK;
685		718
686	/* mark this state as in-use */	719	/* mark this state as in-use */
687	next->mainstack = 0;	720	next->mainstack = 0;
688	next->tmps_ix = -2;	721	next->tmps_ix = -2;
689		722
…		…
708	continue_coro, (void *)next,	741	continue_coro, (void *)next,
709	next->stack->sptr, labs (next->stack->ssize));	742	next->stack->sptr, labs (next->stack->ssize));
710	}	743	}
711		744
712	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 */
713	}	748	}
714		749	else
		750	next->cursp = stacklevel;
715	}	751	}
716	else if (next->tmps_ix == -2)	752	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	753	croak ("tried to transfer to running coroutine");
718	else	754	else
719	{	755	{
		756	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	757	SAVE (prev, -1); /* first get rid of the old state */
		758	UNLOCK;
721		759
722	if (flags & TRANSFER_SAVE_CCTXT)	760	if (flags & TRANSFER_SAVE_CCTXT)
723	{	761	{
724	if (!prev->stack)	762	if (!prev->stack)
725	allocate_stack (prev, 0);	763	allocate_stack (prev, 0);
726		764
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	765	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	766	{
		767	PL_top_env = &next->start_env;
		768
729	setup_coro (next);	769	setup_coro (next);
		770	next->cursp = stacklevel;
730		771
731	prev->stack->refcnt++;	772	prev->stack->refcnt++;
732	prev->stack->usecnt++;	773	prev->stack->usecnt++;
733	next->stack = prev->stack;	774	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	775	next->gencnt = prev->gencnt;
735	}	776	}
736	else	777	else
737	{	778	{
		779	assert (!next->stack);
738	allocate_stack (next, 1);	780	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	781	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	782	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	783	next->stack->sptr, labs (next->stack->ssize));
742	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 */
743	}	787	}
744	}	788	}
745	else	789	else
		790	{
746	setup_coro (next);	791	setup_coro (next);
		792	next->cursp = stacklevel;
		793	}
747	}	794	}
748	}	795	}
749		796
750	next->cursp = stacklevel;	797	LOCK;
751	}	798	if (coro_mortal)
752
753	static struct coro *
754	sv_to_coro (SV arg, const char funcname, const char *varname)
755	{
756	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
757	{	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	{ \
758	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); \
759		814	\
760	if (!he)	815	if (!he) \
761	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); \
762		817	\
763	arg = HeVAL(he);	818	(sv) = SvRV (HeVAL(he)); \
764	}	819	} \
765		820	\
766	/* must also be changed inside Coro::Cont::yield */	821	/* must also be changed inside Coro::Cont::yield */ \
767	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	822	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
768	return (struct coro ) SvIV((SV)SvRV(arg));
769	else
770	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);
771	}	836	}
772		837
773	/ Coro ******************************************************************/	838	/ Coro ******************************************************************/
774		839
775	#define PRIO_MAX 3	840	#define PRIO_MAX 3
…		…
780	#define PRIO_MIN -4	845	#define PRIO_MIN -4
781		846
782	/* for Coro.pm */	847	/* for Coro.pm */
783	static GV coro_current, coro_idle;	848	static GV coro_current, coro_idle;
784	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	849	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		850	static int coro_nready;
785		851
786	static void	852	static void
787	coro_enq (SV *sv)	853	coro_enq (pTHX_ SV *sv)
788	{	854	{
789	if (SvROK (sv))	855	if (SvTYPE (sv) == SVt_PVHV)
790	{	856	{
791	SV *hv = SvRV (sv);
792	if (SvTYPE (hv) == SVt_PVHV)
793	{
794	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	857	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
795	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	858	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
796		859
797	prio = prio > PRIO_MAX ? PRIO_MAX	860	prio = prio > PRIO_MAX ? PRIO_MAX
798	: prio < PRIO_MIN ? PRIO_MIN	861	: prio < PRIO_MIN ? PRIO_MIN
799	: prio;	862	: prio;
800		863
801	av_push (coro_ready [prio - PRIO_MIN], sv);	864	av_push (coro_ready [prio - PRIO_MIN], sv);
		865	coro_nready++;
802		866
803	return;	867	return;
804	}
805	}	868	}
806		869
807	croak ("Coro::ready tried to enqueue something that is not a coroutine");	870	croak ("Coro::ready tried to enqueue something that is not a coroutine");
808	}	871	}
809		872
810	static SV *	873	static SV *
811	coro_deq (int min_prio)	874	coro_deq (pTHX_ int min_prio)
812	{	875	{
813	int prio = PRIO_MAX - PRIO_MIN;	876	int prio = PRIO_MAX - PRIO_MIN;
814		877
815	min_prio -= PRIO_MIN;	878	min_prio -= PRIO_MIN;
816	if (min_prio < 0)	879	if (min_prio < 0)
817	min_prio = 0;	880	min_prio = 0;
818		881
819	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	882	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
820	if (av_len (coro_ready[prio]) >= 0)	883	if (av_len (coro_ready[prio]) >= 0)
		884	{
		885	coro_nready--;
821	return av_shift (coro_ready[prio]);	886	return av_shift (coro_ready[prio]);
		887	}
822		888
823	return 0;	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 ();
824	}	944	}
825		945
826	MODULE = Coro::State PACKAGE = Coro::State	946	MODULE = Coro::State PACKAGE = Coro::State
827		947
828	PROTOTYPES: ENABLE	948	PROTOTYPES: ENABLE
829		949
830	BOOT:	950	BOOT:
831	{ /* {} 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
832	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	956	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
833	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	957	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
834	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	958	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
835		959
836	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	960	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
837	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	961	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
838	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	962	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
839	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	963	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
840		964
841	if (!padlist_cache)
842	padlist_cache = newHV ();
843
844	main_mainstack = PL_mainstack;	965	main_mainstack = PL_mainstack;
		966
		967	coroapi.ver = CORO_API_VERSION;
		968	coroapi.transfer = api_transfer;
845	}	969	}
846		970
847	Coro::State	971	Coro::State
848	_newprocess(args)	972	_newprocess(args)
849	SV * args	973	SV * args
…		…
852	Coro__State coro;	976	Coro__State coro;
853		977
854	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	978	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
855	croak ("Coro::State::_newprocess expects an arrayref");	979	croak ("Coro::State::_newprocess expects an arrayref");
856		980
857	New (0, coro, 1, struct coro);	981	Newz (0, coro, 1, struct coro);
858		982
859	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	983	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
860	coro->mainstack = 0; /* actual work is done inside transfer */	984	/coro->mainstack = 0; //actual work is done inside transfer /
861	coro->stack = 0;	985	/coro->stack = 0;/
		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;
862		992
863	RETVAL = coro;	993	RETVAL = coro;
864	OUTPUT:	994	OUTPUT:
865	RETVAL	995	RETVAL
866		996
867	void	997	void
868	transfer(prev, next, flags)	998	transfer(prev, next, flags)
869	Coro::State_or_hashref prev	999	SV *prev
870	Coro::State_or_hashref next	1000	SV *next
871	int flags	1001	int flags
872	PROTOTYPE: @	1002	PROTOTYPE: @
873	CODE:	1003	CODE:
874	PUTBACK;	1004	PUTBACK;
		1005	SV_CORO (next, "Coro::transfer");
		1006	SV_CORO (prev, "Coro::transfer");
875	transfer (aTHX_ prev, next, flags);	1007	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
876	SPAGAIN;	1008	SPAGAIN;
877		1009
878	void	1010	void
879	DESTROY(coro)	1011	DESTROY(coro)
880	Coro::State coro	1012	Coro::State coro
…		…
882		1014
883	if (coro->mainstack && coro->mainstack != main_mainstack)	1015	if (coro->mainstack && coro->mainstack != main_mainstack)
884	{	1016	{
885	struct coro temp;	1017	struct coro temp;
886		1018
		1019	PUTBACK;
887	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1020	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
888	LOAD(aTHX_ coro);	1021	LOAD (aTHX_ coro);
		1022	SPAGAIN;
889		1023
890	destroy_stacks (aTHX);	1024	destroy_stacks (aTHX);
891		1025
892	LOAD((&temp)); /* this will get rid of defsv etc.. */	1026	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1027	SPAGAIN;
893		1028
894	coro->mainstack = 0;	1029	coro->mainstack = 0;
895	}	1030	}
896		1031
897	deallocate_stack (coro);	1032	deallocate_stack (coro);
898		1033	SvREFCNT_dec (coro->args);
899	Safefree (coro);	1034	Safefree (coro);
900
901	void
902	flush()
903	CODE:
904	#ifdef MAY_FLUSH
905	flush_padlist_cache ();
906	#endif
907		1035
908	void	1036	void
909	_exit(code)	1037	_exit(code)
910	int code	1038	int code
911	PROTOTYPE: $	1039	PROTOTYPE: $
912	CODE:	1040	CODE:
913	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
914	_exit (code);	1041	_exit (code);
915	#else
916	signal (SIGTERM, SIG_DFL);
917	raise (SIGTERM);
918	exit (code);
919	#endif
920		1042
921	MODULE = Coro::State PACKAGE = Coro::Cont	1043	MODULE = Coro::State PACKAGE = Coro::Cont
922		1044
923	# this is slightly dirty (should expose a c-level api)	1045	# this is slightly dirty (should expose a c-level api)
924		1046
…		…
930	SV *sv;	1052	SV *sv;
931	AV *defav = GvAV (PL_defgv);	1053	AV *defav = GvAV (PL_defgv);
932	struct coro prev, next;	1054	struct coro prev, next;
933		1055
934	if (!returnstk)	1056	if (!returnstk)
935	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1057	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
936		1058
937	/* set up @_ -- ugly */	1059	/* set up @_ -- ugly */
938	av_clear (defav);	1060	av_clear (defav);
939	av_fill (defav, items - 1);	1061	av_fill (defav, items - 1);
940	while (items--)	1062	while (items--)
941	av_store (defav, items, SvREFCNT_inc (ST(items)));	1063	av_store (defav, items, SvREFCNT_inc (ST(items)));
942		1064
943	mg_get (returnstk); /* isn't documentation wrong for mg_get? */	1065	SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
944	sv = av_pop ((AV *)SvRV (returnstk));	1066	sv = av_pop ((AV *)SvRV (returnstk));
945	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1067	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
946	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1068	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
947	SvREFCNT_dec (sv);	1069	SvREFCNT_dec (sv);
948		1070
949	transfer(aTHX_ prev, next, 0);	1071	transfer (aTHX_ prev, next, 0);
950		1072
951	MODULE = Coro::State PACKAGE = Coro	1073	MODULE = Coro::State PACKAGE = Coro
952		1074
953	# this is slightly dirty (should expose a c-level api)	1075	# this is slightly dirty (should expose a c-level api)
954		1076
…		…
967	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1089	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
968	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1090	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
969		1091
970	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1092	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
971	coro_ready[i] = newAV ();	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	}
972	}	1108	}
		1109
		1110	#if !PERL_MICRO
973		1111
974	void	1112	void
975	ready(self)	1113	ready(self)
976	SV * self	1114	SV * self
		1115	PROTOTYPE: $
977	CODE:	1116	CODE:
978	coro_enq (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
979		1128
980	void	1129	void
981	schedule(...)	1130	schedule(...)
982	ALIAS:	1131	PROTOTYPE:
983	cede = 1
984	CODE:	1132	CODE:
985	SV prev, next;	1133	api_schedule ();
986		1134
987	prev = GvSV (coro_current);	1135	void
		1136	cede(...)
		1137	PROTOTYPE:
		1138	CODE:
		1139	api_cede ();
988		1140
989	if (ix)
990	coro_enq (SvREFCNT_inc (prev));
991
992	next = coro_deq (PRIO_MIN);
993
994	if (!next)
995	next = SvREFCNT_inc (GvSV (coro_idle));
996
997	GvSV (coro_current) = SvREFCNT_inc (next);
998	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),
999	sv_to_coro (next, "Coro::schedule", "next coroutine"),
1000	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
1001	SvREFCNT_dec (next);
1002	SvREFCNT_dec (prev);
1003

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Comparing Coro/Coro/State.xs (file contents): Revision 1.22 by root, Sat Aug 11 23:10:56 2001 UTC vs. Revision 1.60 by root, Mon Aug 9 02:41:27 2004 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.22 by root, Sat Aug 11 23:10:56 2001 UTC vs.
Revision 1.60 by root, Mon Aug 9 02:41:27 2004 UTC