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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.28 by root, Sat Aug 25 21:32:05 2001 UTC vs.
Revision 1.67 by root, Mon Dec 12 20:07:44 2005 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
		3	#include "libcoro/coro.c"
		4
1	#include "EXTERN.h"	5	#include "EXTERN.h"
2	#include "perl.h"	6	#include "perl.h"
3	#include "XSUB.h"	7	#include "XSUB.h"
4		8
5	#include "libcoro/coro.c"	9	#include "patchlevel.h"
		10
		11	// threaded perls might need much more, 65536 or more,
		12	// which is 0.5 to 1MB
		13	#define STACKSIZE 16384
		14
		15	#if PERL_VERSION < 6
		16	# ifndef PL_ppaddr
		17	# define PL_ppaddr ppaddr
		18	# endif
		19	# ifndef call_sv
		20	# define call_sv perl_call_sv
		21	# endif
		22	# ifndef get_sv
		23	# define get_sv perl_get_sv
		24	# endif
		25	# ifndef get_cv
		26	# define get_cv perl_get_cv
		27	# endif
		28	# ifndef IS_PADGV
		29	# define IS_PADGV(v) 0
		30	# endif
		31	# ifndef IS_PADCONST
		32	# define IS_PADCONST(v) 0
		33	# endif
		34	#endif
6		35
7	#include <signal.h>	36	#include <signal.h>
8		37
9	#ifdef HAVE_MMAP	38	#ifdef HAVE_MMAP
10	# include <unistd.h>	39	# include <unistd.h>
11	# include <sys/mman.h>	40	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	41	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	42	# ifdef MAP_ANON
		43	# define MAP_ANONYMOUS MAP_ANON
15	# else	44	# else
16	# undef HAVE_MMAP	45	# undef HAVE_MMAP
17	# endif	46	# endif
18	# endif	47	# endif
19	#endif	48	#endif
20		49
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	50	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	51	#define UCORO_STATE "_coro_state"
25		52
26	/* The next macro should declare a variable stacklevel that contains and approximation	53	/* The next macro should declare a variable stacklevel that contains and approximation
27	* to the current C stack pointer. Its property is that it changes with each call	54	* to the current C stack pointer. Its property is that it changes with each call
28	* and should be unique. */	55	* and should be unique. */
29	#define dSTACKLEVEL void *stacklevel = &stacklevel	56	#define dSTACKLEVEL void *stacklevel = &stacklevel
30		57
		58	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		59
31	#define labs(l) ((l) >= 0 ? (l) : -(l))	60	#define labs(l) ((l) >= 0 ? (l) : -(l))
32		61
33	#include "CoroAPI.h"	62	#include "CoroAPI.h"
34		63
		64	#ifdef USE_ITHREADS
		65	static perl_mutex coro_mutex;
		66	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		67	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		68	#else
		69	# define LOCK 0
		70	# define UNLOCK 0
		71	#endif
		72
35	static struct CoroAPI coroapi;	73	static struct CoroAPI coroapi;
		74	static AV main_mainstack; / used to differentiate between $main and others */
		75	static HV *coro_state_stash;
		76	static SV *ucoro_state_sv;
		77	static U32 ucoro_state_hash;
		78	static SV coro_mortal; / will be freed after next transfer */
36		79
37	/* this is actually not only the c stack but also c registers etc... */	80	/* this is actually not only the c stack but also c registers etc... */
38	typedef struct {	81	typedef struct {
39	int refcnt; /* pointer reference counter */	82	int refcnt; /* pointer reference counter */
40	int usecnt; /* shared by how many coroutines */	83	int usecnt; /* shared by how many coroutines */
45	void *sptr;	88	void *sptr;
46	long ssize; /* positive == mmap, otherwise malloc */	89	long ssize; /* positive == mmap, otherwise malloc */
47	} coro_stack;	90	} coro_stack;
48		91
49	struct coro {	92	struct coro {
		93	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		94	JMPENV start_env;
		95
50	/* the optional C context */	96	/* the optional C context */
51	coro_stack *stack;	97	coro_stack *stack;
52	void *cursp;	98	void *cursp;
53	int gencnt;	99	int gencnt;
54		100
…		…
66	AV *curstack;	112	AV *curstack;
67	AV *mainstack;	113	AV *mainstack;
68	SV **stack_sp;	114	SV **stack_sp;
69	OP *op;	115	OP *op;
70	SV **curpad;	116	SV **curpad;
		117	AV *comppad;
		118	CV *compcv;
71	SV **stack_base;	119	SV **stack_base;
72	SV **stack_max;	120	SV **stack_max;
73	SV **tmps_stack;	121	SV **tmps_stack;
74	I32 tmps_floor;	122	I32 tmps_floor;
75	I32 tmps_ix;	123	I32 tmps_ix;
…		…
84	I32 savestack_ix;	132	I32 savestack_ix;
85	I32 savestack_max;	133	I32 savestack_max;
86	OP **retstack;	134	OP **retstack;
87	I32 retstack_ix;	135	I32 retstack_ix;
88	I32 retstack_max;	136	I32 retstack_max;
		137	PMOP *curpm;
89	COP *curcop;	138	COP *curcop;
90	JMPENV *top_env;	139	JMPENV *top_env;
91		140
92	/* data associated with this coroutine (initial args) */	141	/* data associated with this coroutine (initial args) */
93	AV *args;	142	AV *args;
94	};	143	};
95		144
96	typedef struct coro *Coro__State;	145	typedef struct coro *Coro__State;
97	typedef struct coro *Coro__State_or_hashref;	146	typedef struct coro *Coro__State_or_hashref;
98		147
99	static AV main_mainstack; / used to differentiate between $main and others */
100	static HV *coro_state_stash;
101	static SV *ucoro_state_sv;
102	static U32 ucoro_state_hash;
103	static HV *padlist_cache;
104
105	/* mostly copied from op.c:cv_clone2 */	148	/* mostly copied from op.c:cv_clone2 */
106	STATIC AV *	149	STATIC AV *
107	clone_padlist (AV *protopadlist)	150	clone_padlist (pTHX_ AV *protopadlist)
108	{	151	{
109	AV *av;	152	AV *av;
110	I32 ix;	153	I32 ix;
111	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	154	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
112	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	155	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
136	AvFLAGS (av) = AVf_REIFY;	179	AvFLAGS (av) = AVf_REIFY;
137		180
138	for (ix = fpad; ix > 0; ix--)	181	for (ix = fpad; ix > 0; ix--)
139	{	182	{
140	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	183	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		184
141	if (namesv && namesv != &PL_sv_undef)	185	if (namesv && namesv != &PL_sv_undef)
142	{	186	{
143	char name = SvPVX (namesv); / XXX */	187	char name = SvPVX (namesv); / XXX */
		188
144	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	189	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
145	{ /* lexical from outside? */	190	{ /* lexical from outside? */
146	npad[ix] = SvREFCNT_inc (ppad[ix]);	191	npad[ix] = SvREFCNT_inc (ppad[ix]);
147	}	192	}
148	else	193	else
…		…
154	sv = (SV *) newAV ();	199	sv = (SV *) newAV ();
155	else if (*name == '%')	200	else if (*name == '%')
156	sv = (SV *) newHV ();	201	sv = (SV *) newHV ();
157	else	202	else
158	sv = NEWSV (0, 0);	203	sv = NEWSV (0, 0);
		204
		205	#ifdef SvPADBUSY
159	if (!SvPADBUSY (sv))	206	if (!SvPADBUSY (sv))
		207	#endif
160	SvPADMY_on (sv);	208	SvPADMY_on (sv);
		209
161	npad[ix] = sv;	210	npad[ix] = sv;
162	}	211	}
163	}	212	}
164	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	213	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
165	{	214	{
…		…
194	#endif	243	#endif
195		244
196	return newpadlist;	245	return newpadlist;
197	}	246	}
198		247
199	#ifdef MAY_FLUSH
200	STATIC void	248	STATIC void
201	free_padlist (AV *padlist)	249	free_padlist (pTHX_ AV *padlist)
202	{	250	{
203	/* may be during global destruction */	251	/* may be during global destruction */
204	if (SvREFCNT(padlist))	252	if (SvREFCNT (padlist))
205	{	253	{
206	I32 i = AvFILLp(padlist);	254	I32 i = AvFILLp (padlist);
207	while (i >= 0)	255	while (i >= 0)
208	{	256	{
209	SV **svp = av_fetch(padlist, i--, FALSE);	257	SV **svp = av_fetch (padlist, i--, FALSE);
210	SV sv = svp ? svp : Nullsv;
211	if (sv)	258	if (svp)
		259	{
		260	SV *sv;
		261	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
212	SvREFCNT_dec(sv);	262	SvREFCNT_dec (sv);
		263
		264	SvREFCNT_dec (*svp);
		265	}
213	}	266	}
214		267
215	SvREFCNT_dec((SV*)padlist);	268	SvREFCNT_dec ((SV*)padlist);
216	}	269	}
217	}	270	}
218	#endif	271
		272	STATIC int
		273	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		274	{
		275	AV *padlist;
		276	AV av = (AV )mg->mg_obj;
		277
		278	/* casting is fun. */
		279	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		280	free_padlist (aTHX_ padlist);
		281
		282	SvREFCNT_dec (av);
		283	}
		284
		285	#define PERL_MAGIC_coro PERL_MAGIC_ext
		286
		287	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
219		288
220	/* the next two functions merely cache the padlists */	289	/* the next two functions merely cache the padlists */
221	STATIC void	290	STATIC void
222	get_padlist (CV *cv)	291	get_padlist (pTHX_ CV *cv)
223	{	292	{
224	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	293	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
225		294
226	if (he && AvFILLp ((AV )he) >= 0)	295	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
227	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	296	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
228	else	297	else
229	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	298	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
230	}	299	}
231		300
232	STATIC void	301	STATIC void
233	put_padlist (CV *cv)	302	put_padlist (pTHX_ CV *cv)
234	{	303	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	304	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		305
237	if (SvTYPE (*he) != SVt_PVAV)	306	if (!mg)
238	{	307	{
239	SvREFCNT_dec (*he);	308	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		309	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		310	mg->mg_virtual = &vtbl_coro;
240	he = (SV )newAV ();	311	mg->mg_obj = (SV *)newAV ();
241	}	312	}
242		313
243	av_push ((AV )he, (SV *)CvPADLIST (cv));	314	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
244	}	315	}
245
246	#ifdef MAY_FLUSH
247	STATIC void
248	flush_padlist_cache ()
249	{
250	HV *hv = padlist_cache;
251	padlist_cache = newHV ();
252
253	if (hv_iterinit (hv))
254	{
255	HE *he;
256	AV *padlist;
257
258	while (!!(he = hv_iternext (hv)))
259	{
260	AV av = (AV )HeVAL(he);
261
262	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);
265	}
266	}
267
268	SvREFCNT_dec (hv);
269	}
270	#endif
271		316
272	#define SB do {	317	#define SB do {
273	#define SE } while (0)	318	#define SE } while (0)
274		319
275	#define LOAD(state) load_state(aTHX_ (state));	320	#define LOAD(state) load_state(aTHX_ (state));
276	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	321	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
277		322
278	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	323	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
279		324
280	static void	325	static void
281	load_state(pTHX_ Coro__State c)	326	load_state(pTHX_ Coro__State c)
282	{	327	{
283	PL_dowarn = c->dowarn;	328	PL_dowarn = c->dowarn;
…		…
287	PL_curstack = c->curstack;	332	PL_curstack = c->curstack;
288	PL_mainstack = c->mainstack;	333	PL_mainstack = c->mainstack;
289	PL_stack_sp = c->stack_sp;	334	PL_stack_sp = c->stack_sp;
290	PL_op = c->op;	335	PL_op = c->op;
291	PL_curpad = c->curpad;	336	PL_curpad = c->curpad;
		337	PL_comppad = c->comppad;
		338	PL_compcv = c->compcv;
292	PL_stack_base = c->stack_base;	339	PL_stack_base = c->stack_base;
293	PL_stack_max = c->stack_max;	340	PL_stack_max = c->stack_max;
294	PL_tmps_stack = c->tmps_stack;	341	PL_tmps_stack = c->tmps_stack;
295	PL_tmps_floor = c->tmps_floor;	342	PL_tmps_floor = c->tmps_floor;
296	PL_tmps_ix = c->tmps_ix;	343	PL_tmps_ix = c->tmps_ix;
…		…
305	PL_savestack_ix = c->savestack_ix;	352	PL_savestack_ix = c->savestack_ix;
306	PL_savestack_max = c->savestack_max;	353	PL_savestack_max = c->savestack_max;
307	PL_retstack = c->retstack;	354	PL_retstack = c->retstack;
308	PL_retstack_ix = c->retstack_ix;	355	PL_retstack_ix = c->retstack_ix;
309	PL_retstack_max = c->retstack_max;	356	PL_retstack_max = c->retstack_max;
		357	PL_curpm = c->curpm;
310	PL_curcop = c->curcop;	358	PL_curcop = c->curcop;
311	PL_top_env = c->top_env;	359	PL_top_env = c->top_env;
312		360
313	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	361	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
314	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	362	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
323	{	371	{
324	AV padlist = (AV )POPs;	372	AV padlist = (AV )POPs;
325		373
326	if (padlist)	374	if (padlist)
327	{	375	{
328	put_padlist (cv); /* mark this padlist as available */	376	put_padlist (aTHX_ cv); /* mark this padlist as available */
329	CvPADLIST(cv) = padlist;	377	CvPADLIST(cv) = padlist;
330	#ifdef USE_THREADS
331	/CvOWNER(cv) = (struct perl_thread )POPs;*/
332	#endif
333	}	378	}
334		379
335	++CvDEPTH(cv);	380	++CvDEPTH(cv);
336	}	381	}
337		382
…		…
355		400
356	PUSHs (Nullsv);	401	PUSHs (Nullsv);
357	/* this loop was inspired by pp_caller */	402	/* this loop was inspired by pp_caller */
358	for (;;)	403	for (;;)
359	{	404	{
360	do	405	while (cxix >= 0)
361	{	406	{
362	PERL_CONTEXT *cx = &ccstk[cxix--];	407	PERL_CONTEXT *cx = &ccstk[cxix--];
363		408
364	if (CxTYPE(cx) == CXt_SUB)	409	if (CxTYPE(cx) == CXt_SUB)
365	{	410	{
366	CV *cv = cx->blk_sub.cv;	411	CV *cv = cx->blk_sub.cv;
367	if (CvDEPTH(cv))	412	if (CvDEPTH(cv))
368	{	413	{
369	#ifdef USE_THREADS
370	/XPUSHs ((SV )CvOWNER(cv));*/
371	/CvOWNER(cv) = 0;/
372	/error must unlock this cv etc.. etc.../
373	#endif
374	EXTEND (SP, CvDEPTH(cv)*2);	414	EXTEND (SP, CvDEPTH(cv)*2);
375		415
376	while (--CvDEPTH(cv))	416	while (--CvDEPTH(cv))
377	{	417	{
378	/* this tells the restore code to increment CvDEPTH */	418	/* this tells the restore code to increment CvDEPTH */
…		…
381	}	421	}
382		422
383	PUSHs ((SV *)CvPADLIST(cv));	423	PUSHs ((SV *)CvPADLIST(cv));
384	PUSHs ((SV *)cv);	424	PUSHs ((SV *)cv);
385		425
386	get_padlist (cv); /* this is a monster */	426	get_padlist (aTHX_ cv); /* this is a monster */
387	}	427	}
388	}	428	}
		429	#ifdef CXt_FORMAT
389	else if (CxTYPE(cx) == CXt_FORMAT)	430	else if (CxTYPE(cx) == CXt_FORMAT)
390	{	431	{
391	/* I never used formats, so how should I know how these are implemented? */	432	/* I never used formats, so how should I know how these are implemented? */
392	/* my bold guess is as a simple, plain sub... */	433	/* my bold guess is as a simple, plain sub... */
393	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	434	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
394	}	435	}
		436	#endif
395	}	437	}
396	while (cxix >= 0);
397		438
398	if (top_si->si_type == PERLSI_MAIN)	439	if (top_si->si_type == PERLSI_MAIN)
399	break;	440	break;
400		441
401	top_si = top_si->si_prev;	442	top_si = top_si->si_prev;
…		…
417	c->curstack = PL_curstack;	458	c->curstack = PL_curstack;
418	c->mainstack = PL_mainstack;	459	c->mainstack = PL_mainstack;
419	c->stack_sp = PL_stack_sp;	460	c->stack_sp = PL_stack_sp;
420	c->op = PL_op;	461	c->op = PL_op;
421	c->curpad = PL_curpad;	462	c->curpad = PL_curpad;
		463	c->comppad = PL_comppad;
		464	c->compcv = PL_compcv;
422	c->stack_base = PL_stack_base;	465	c->stack_base = PL_stack_base;
423	c->stack_max = PL_stack_max;	466	c->stack_max = PL_stack_max;
424	c->tmps_stack = PL_tmps_stack;	467	c->tmps_stack = PL_tmps_stack;
425	c->tmps_floor = PL_tmps_floor;	468	c->tmps_floor = PL_tmps_floor;
426	c->tmps_ix = PL_tmps_ix;	469	c->tmps_ix = PL_tmps_ix;
…		…
435	c->savestack_ix = PL_savestack_ix;	478	c->savestack_ix = PL_savestack_ix;
436	c->savestack_max = PL_savestack_max;	479	c->savestack_max = PL_savestack_max;
437	c->retstack = PL_retstack;	480	c->retstack = PL_retstack;
438	c->retstack_ix = PL_retstack_ix;	481	c->retstack_ix = PL_retstack_ix;
439	c->retstack_max = PL_retstack_max;	482	c->retstack_max = PL_retstack_max;
		483	c->curpm = PL_curpm;
440	c->curcop = PL_curcop;	484	c->curcop = PL_curcop;
441	c->top_env = PL_top_env;	485	c->top_env = PL_top_env;
442	}	486	}
443		487
444	/*	488	/*
445	* allocate various perl stacks. This is an exact copy	489	* allocate various perl stacks. This is an exact copy
446	* of perl.c:init_stacks, except that it uses less memory	490	* of perl.c:init_stacks, except that it uses less memory
447	* on the assumption that coroutines do not usually need	491	* on the (sometimes correct) assumption that coroutines do
448	* a lot of stackspace.	492	* not usually need a lot of stackspace.
449	*/	493	*/
450	STATIC void	494	STATIC void
451	coro_init_stacks (pTHX)	495	coro_init_stacks (pTHX)
452	{	496	{
		497	LOCK;
		498
453	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	499	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
454	PL_curstackinfo->si_type = PERLSI_MAIN;	500	PL_curstackinfo->si_type = PERLSI_MAIN;
455	PL_curstack = PL_curstackinfo->si_stack;	501	PL_curstack = PL_curstackinfo->si_stack;
456	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	502	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
457		503
…		…
466		512
467	New(54,PL_markstack,16,I32);	513	New(54,PL_markstack,16,I32);
468	PL_markstack_ptr = PL_markstack;	514	PL_markstack_ptr = PL_markstack;
469	PL_markstack_max = PL_markstack + 16;	515	PL_markstack_max = PL_markstack + 16;
470		516
		517	#ifdef SET_MARK_OFFSET
471	SET_MARK_OFFSET;	518	SET_MARK_OFFSET;
		519	#endif
472		520
473	New(54,PL_scopestack,16,I32);	521	New(54,PL_scopestack,16,I32);
474	PL_scopestack_ix = 0;	522	PL_scopestack_ix = 0;
475	PL_scopestack_max = 16;	523	PL_scopestack_max = 16;
476		524
…		…
479	PL_savestack_max = 96;	527	PL_savestack_max = 96;
480		528
481	New(54,PL_retstack,8,OP*);	529	New(54,PL_retstack,8,OP*);
482	PL_retstack_ix = 0;	530	PL_retstack_ix = 0;
483	PL_retstack_max = 8;	531	PL_retstack_max = 8;
		532
		533	UNLOCK;
484	}	534	}
485		535
486	/*	536	/*
487	* destroy the stacks, the callchain etc...	537	* destroy the stacks, the callchain etc...
488	* still there is a memleak of 128 bytes...
489	*/	538	*/
490	STATIC void	539	STATIC void
491	destroy_stacks(pTHX)	540	destroy_stacks(pTHX)
492	{	541	{
		542	if (!IN_DESTRUCT)
		543	{
493	/* is this ugly, I ask? */	544	/* is this ugly, I ask? */
494	while (PL_scopestack_ix)	545	LEAVE_SCOPE (0);
495	LEAVE;
496		546
497	/* sure it is, but more important: is it correct?? :/ */	547	/* sure it is, but more important: is it correct?? :/ */
498	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
499	FREETMPS;	548	FREETMPS;
		549
		550	/POPSTACK_TO (PL_mainstack);//D//use/
		551	}
500		552
501	while (PL_curstackinfo->si_next)	553	while (PL_curstackinfo->si_next)
502	PL_curstackinfo = PL_curstackinfo->si_next;	554	PL_curstackinfo = PL_curstackinfo->si_next;
503		555
504	while (PL_curstackinfo)	556	while (PL_curstackinfo)
505	{	557	{
506	PERL_SI *p = PL_curstackinfo->si_prev;	558	PERL_SI *p = PL_curstackinfo->si_prev;
507		559
508	{	560	{ /D//remove/
509	dSP;	561	dSP;
510	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	562	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
511	PUTBACK; /* possibly superfluous */	563	PUTBACK; /* possibly superfluous */
512	}	564	}
513		565
514	if (PL_main_cv != Nullcv) /* don't during destruction. hack? */	566	if (!IN_DESTRUCT)
515	dounwind(-1);	567	{
516		568	dounwind (-1);/D//remove/
517	SvREFCNT_dec(PL_curstackinfo->si_stack);	569	SvREFCNT_dec (PL_curstackinfo->si_stack);
		570	}
		571
518	Safefree(PL_curstackinfo->si_cxstack);	572	Safefree (PL_curstackinfo->si_cxstack);
519	Safefree(PL_curstackinfo);	573	Safefree (PL_curstackinfo);
520	PL_curstackinfo = p;	574	PL_curstackinfo = p;
521	}	575	}
522		576
523	Safefree(PL_tmps_stack);	577	Safefree (PL_tmps_stack);
524	Safefree(PL_markstack);	578	Safefree (PL_markstack);
525	Safefree(PL_scopestack);	579	Safefree (PL_scopestack);
526	Safefree(PL_savestack);	580	Safefree (PL_savestack);
527	Safefree(PL_retstack);	581	Safefree (PL_retstack);
528	}	582	}
529		583
530	static void	584	static void
531	allocate_stack (Coro__State ctx, int alloc)	585	allocate_stack (Coro__State ctx, int alloc)
532	{	586	{
…		…
535	New (0, stack, 1, coro_stack);	589	New (0, stack, 1, coro_stack);
536		590
537	stack->refcnt = 1;	591	stack->refcnt = 1;
538	stack->usecnt = 1;	592	stack->usecnt = 1;
539	stack->gencnt = ctx->gencnt = 0;	593	stack->gencnt = ctx->gencnt = 0;
		594
540	if (alloc)	595	if (alloc)
541	{	596	{
542	#ifdef HAVE_MMAP	597	#if HAVE_MMAP
543	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	598	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
544	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	599	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
545	if (stack->sptr == (void *)-1)	600	if (stack->sptr == (void *)-1)
546	#endif	601	#endif
547	{	602	{
548	/FIXME//D//* reasonable stack size! */	603	/FIXME//D//* reasonable stack size! */
549	stack->ssize = -4096 * sizeof (long);	604	stack->ssize = - (STACKSIZE * sizeof (long));
550	New (0, stack->sptr, 4096, long);	605	New (0, stack->sptr, STACKSIZE, long);
551	}	606	}
552	}	607	}
553	else	608	else
554	stack->sptr = 0;	609	stack->sptr = 0;
555		610
…		…
563		618
564	ctx->stack = 0;	619	ctx->stack = 0;
565		620
566	if (stack)	621	if (stack)
567	{	622	{
568	printf ("deallocating stack %p %d\n", stack, stack->refcnt);/D/
569	if (!--stack->refcnt)	623	if (!--stack->refcnt)
570	{	624	{
571	#ifdef HAVE_MMAP	625	#ifdef HAVE_MMAP
572	if (stack->ssize > 0 && stack->sptr)	626	if (stack->ssize > 0 && stack->sptr)
573	munmap (stack->sptr, stack->ssize);	627	munmap (stack->sptr, stack->ssize);
574	else	628	else
575	#else	629	#endif
576	Safefree (stack->sptr);	630	Safefree (stack->sptr);
577	#endif	631
578	Safefree (stack);	632	Safefree (stack);
579	}	633	}
580	else if (ctx->gencnt == stack->gencnt)	634	else if (ctx->gencnt == stack->gencnt)
581	--stack->usecnt;	635	--stack->usecnt;
582	}	636	}
…		…
586	setup_coro (void *arg)	640	setup_coro (void *arg)
587	{	641	{
588	/*	642	/*
589	* emulate part of the perl startup here.	643	* emulate part of the perl startup here.
590	*/	644	*/
		645	dTHX;
591	dSP;	646	dSP;
592	Coro__State ctx = (Coro__State)arg;	647	Coro__State ctx = (Coro__State)arg;
593	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	648	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
594		649
595	coro_init_stacks (aTHX);	650	coro_init_stacks (aTHX);
596	/PL_curcop = 0;/	651	/PL_curcop = 0;/
597	/PL_in_eval = PL_in_eval;/ /* inherit */	652	/PL_in_eval = PL_in_eval;/ /* inherit */
598	SvREFCNT_dec (GvAV (PL_defgv));	653	SvREFCNT_dec (GvAV (PL_defgv));
599	GvAV (PL_defgv) = ctx->args;	654	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
600		655
601	SPAGAIN;	656	SPAGAIN;
602		657
603	if (ctx->stack)	658	if (ctx->stack)
604	{	659	{
…		…
631	* that doesn't matter, though, since it is only	686	* that doesn't matter, though, since it is only
632	* pp_nextstate and we never return...	687	* pp_nextstate and we never return...
633	* ah yes, and I don't care anyways ;)	688	* ah yes, and I don't care anyways ;)
634	*/	689	*/
635	PUTBACK;	690	PUTBACK;
636	PL_op = pp_entersub();	691	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
637	SPAGAIN;	692	SPAGAIN;
638		693
639	ENTER; /* necessary e.g. for dounwind */	694	ENTER; /* necessary e.g. for dounwind */
640	}	695	}
641	}	696	}
…		…
644	continue_coro (void *arg)	699	continue_coro (void *arg)
645	{	700	{
646	/*	701	/*
647	* this is a _very_ stripped down perl interpreter ;)	702	* this is a _very_ stripped down perl interpreter ;)
648	*/	703	*/
		704	dTHX;
649	Coro__State ctx = (Coro__State)arg;	705	Coro__State ctx = (Coro__State)arg;
		706	JMPENV coro_start_env;
650		707
651	/FIXME//* must set up top_env here */	708	PL_top_env = &ctx->start_env;
		709
652	ctx->cursp = 0;	710	ctx->cursp = 0;
653	PL_op = PL_op->op_next;	711	PL_op = PL_op->op_next;
654	CALLRUNOPS(aTHX);	712	CALLRUNOPS(aTHX);
655		713
656	abort ();	714	abort ();
657	}	715	}
658		716
659	STATIC void	717	STATIC void
660	transfer(pTHX_ struct coro prev, struct coro next, int flags)	718	transfer (pTHX_ struct coro prev, struct coro next, int flags)
661	{	719	{
662	dSTACKLEVEL;	720	dSTACKLEVEL;
663	static struct coro *xnext;
664		721
665	printf ("%p => %p\n", prev, next);/D/
666	if (prev != next)	722	if (prev != next)
667	{	723	{
668	xnext = next;
669
670	if (next->mainstack)	724	if (next->mainstack)
671	{	725	{
		726	LOCK;
672	SAVE (prev, flags);	727	SAVE (prev, flags);
673	LOAD (next);	728	LOAD (next);
		729	UNLOCK;
674		730
675	/* mark this state as in-use */	731	/* mark this state as in-use */
676	next->mainstack = 0;	732	next->mainstack = 0;
677	next->tmps_ix = -2;	733	next->tmps_ix = -2;
678		734
…		…
697	continue_coro, (void *)next,	753	continue_coro, (void *)next,
698	next->stack->sptr, labs (next->stack->ssize));	754	next->stack->sptr, labs (next->stack->ssize));
699	}	755	}
700		756
701	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	757	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		758	prev->cursp = stacklevel;
702	/* don't add any code here */	759	/* don't add any code here */
703	}	760	}
704		761	else
		762	next->cursp = stacklevel;
705	}	763	}
706	else if (next->tmps_ix == -2)	764	else if (next->tmps_ix == -2)
707	croak ("tried to transfer to running coroutine");	765	croak ("tried to transfer to running coroutine");
708	else	766	else
709	{	767	{
		768	LOCK;
710	SAVE (prev, -1); /* first get rid of the old state */	769	SAVE (prev, -1); /* first get rid of the old state */
		770	UNLOCK;
711		771
712	if (flags & TRANSFER_SAVE_CCTXT)	772	if (flags & TRANSFER_SAVE_CCTXT)
713	{	773	{
714	if (!prev->stack)	774	if (!prev->stack)
715	allocate_stack (prev, 0);	775	allocate_stack (prev, 0);
716		776
717	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	777	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
718	{	778	{
		779	PL_top_env = &next->start_env;
		780
719	setup_coro (next);	781	setup_coro (next);
		782	next->cursp = stacklevel;
720		783
721	prev->stack->refcnt++;	784	prev->stack->refcnt++;
722	prev->stack->usecnt++;	785	prev->stack->usecnt++;
723	next->stack = prev->stack;	786	next->stack = prev->stack;
724	next->gencnt = prev->gencnt;	787	next->gencnt = prev->gencnt;
725	}	788	}
726	else	789	else
727	{	790	{
		791	assert (!next->stack);
728	allocate_stack (next, 1);	792	allocate_stack (next, 1);
729	coro_create (&(next->stack->cctx),	793	coro_create (&(next->stack->cctx),
730	setup_coro, (void *)next,	794	setup_coro, (void *)next,
731	next->stack->sptr, labs (next->stack->ssize));	795	next->stack->sptr, labs (next->stack->ssize));
732	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	796	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		797	prev->cursp = stacklevel;
733	/* don't add any code here */	798	/* don't add any code here */
734	}	799	}
735	}	800	}
736	else	801	else
		802	{
737	setup_coro (next);	803	setup_coro (next);
		804	next->cursp = stacklevel;
		805	}
738	}	806	}
739	}	807	}
740		808
741	xnext->cursp = stacklevel;	809	LOCK;
742	}	810	if (coro_mortal)
743
744	static struct coro *
745	sv_to_coro (SV arg, const char funcname, const char *varname)
746	{
747	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
748	{	811	{
749	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	812	SvREFCNT_dec (coro_mortal);
750		813	coro_mortal = 0;
751	if (!he)
752	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
753
754	arg = HeVAL(he);
755	}	814	}
756		815	UNLOCK;
		816	}
		817
		818	#define SV_CORO(sv,func) \
		819	do { \
		820	if (SvROK (sv)) \
		821	sv = SvRV (sv); \
		822	\
		823	if (SvTYPE (sv) == SVt_PVHV) \
		824	{ \
		825	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		826	\
		827	if (!he) \
		828	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		829	\
		830	(sv) = SvRV (HeVAL(he)); \
		831	} \
		832	\
757	/* must also be changed inside Coro::Cont::yield */	833	/* must also be changed inside Coro::Cont::yield */ \
758	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	834	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
759	return (struct coro ) SvIV((SV)SvRV(arg));
760
761	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	835	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
762	/NORETURN/	836	\
763	}	837	} while(0)
		838
		839	#define SvSTATE(sv) (struct coro *)SvIV (sv)
764		840
765	static void	841	static void
766	api_transfer(pTHX_ SV prev, SV next, int flags)	842	api_transfer(pTHX_ SV prev, SV next, int flags)
767	{	843	{
768	transfer(aTHX_	844	SV_CORO (prev, "Coro::transfer");
769	sv_to_coro (prev, "Coro::transfer", "prev"),	845	SV_CORO (next, "Coro::transfer");
770	sv_to_coro (next, "Coro::transfer", "next"),	846
771	flags);	847	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
772	}	848	}
773		849
774	/ Coro ******************************************************************/	850	/ Coro ******************************************************************/
775		851
776	#define PRIO_MAX 3	852	#define PRIO_MAX 3
…		…
784	static GV coro_current, coro_idle;	860	static GV coro_current, coro_idle;
785	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	861	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
786	static int coro_nready;	862	static int coro_nready;
787		863
788	static void	864	static void
789	coro_enq (SV *sv)	865	coro_enq (pTHX_ SV *sv)
790	{	866	{
791	if (SvROK (sv))	867	if (SvTYPE (sv) == SVt_PVHV)
792	{	868	{
793	SV *hv = SvRV (sv);
794	if (SvTYPE (hv) == SVt_PVHV)
795	{
796	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	869	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
797	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	870	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
798		871
799	prio = prio > PRIO_MAX ? PRIO_MAX	872	prio = prio > PRIO_MAX ? PRIO_MAX
800	: prio < PRIO_MIN ? PRIO_MIN	873	: prio < PRIO_MIN ? PRIO_MIN
801	: prio;	874	: prio;
802		875
803	av_push (coro_ready [prio - PRIO_MIN], sv);	876	av_push (coro_ready [prio - PRIO_MIN], sv);
804	coro_nready++;	877	coro_nready++;
805		878
806	return;	879	return;
807	}
808	}	880	}
809		881
810	croak ("Coro::ready tried to enqueue something that is not a coroutine");	882	croak ("Coro::ready tried to enqueue something that is not a coroutine");
811	}	883	}
812		884
813	static SV *	885	static SV *
814	coro_deq (int min_prio)	886	coro_deq (pTHX_ int min_prio)
815	{	887	{
816	int prio = PRIO_MAX - PRIO_MIN;	888	int prio = PRIO_MAX - PRIO_MIN;
817		889
818	min_prio -= PRIO_MIN;	890	min_prio -= PRIO_MIN;
819	if (min_prio < 0)	891	if (min_prio < 0)
…		…
830	}	902	}
831		903
832	static void	904	static void
833	api_ready (SV *coro)	905	api_ready (SV *coro)
834	{	906	{
		907	dTHX;
		908
		909	if (SvROK (coro))
		910	coro = SvRV (coro);
		911
		912	LOCK;
835	coro_enq (SvREFCNT_inc (coro));	913	coro_enq (aTHX_ SvREFCNT_inc (coro));
		914	UNLOCK;
836	}	915	}
837		916
838	static void	917	static void
839	api_schedule (int cede)	918	api_schedule (void)
840	{	919	{
		920	dTHX;
		921
841	SV prev, next;	922	SV prev, next;
842		923
		924	LOCK;
		925
843	prev = GvSV (coro_current);	926	prev = SvRV (GvSV (coro_current));
844
845	if (cede)
846	coro_enq (SvREFCNT_inc (prev));
847
848	next = coro_deq (PRIO_MIN);	927	next = coro_deq (aTHX_ PRIO_MIN);
849		928
850	if (!next)	929	if (!next)
851	next = SvREFCNT_inc (GvSV (coro_idle));	930	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
852		931
853	GvSV (coro_current) = SvREFCNT_inc (next);	932	/* free this only after the transfer */
854	transfer (aTHX_	933	coro_mortal = prev;
855	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	934	SV_CORO (prev, "Coro::schedule");
856	sv_to_coro (next, "Coro::schedule", "next coroutine"),	935
		936	SvRV (GvSV (coro_current)) = next;
		937
		938	SV_CORO (next, "Coro::schedule");
		939
		940	UNLOCK;
		941
		942	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
857	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	943	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
858	SvREFCNT_dec (next);	944	}
859	SvREFCNT_dec (prev);	945
		946	static void
		947	api_cede (void)
		948	{
		949	dTHX;
		950
		951	LOCK;
		952	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		953	UNLOCK;
		954
		955	api_schedule ();
860	}	956	}
861		957
862	MODULE = Coro::State PACKAGE = Coro::State	958	MODULE = Coro::State PACKAGE = Coro::State
863		959
864	PROTOTYPES: ENABLE	960	PROTOTYPES: ENABLE
865		961
866	BOOT:	962	BOOT:
867	{ /* {} necessary for stoopid perl-5.6.x */	963	{ /* {} necessary for stoopid perl-5.6.x */
		964	#ifdef USE_ITHREADS
		965	MUTEX_INIT (&coro_mutex);
		966	#endif
		967
868	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	968	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
869	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	969	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
870	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	970	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
871		971
872	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	972	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
873	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	973	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
874	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	974	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
875	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	975	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
876
877	if (!padlist_cache)
878	padlist_cache = newHV ();
879		976
880	main_mainstack = PL_mainstack;	977	main_mainstack = PL_mainstack;
881		978
882	coroapi.ver = CORO_API_VERSION;	979	coroapi.ver = CORO_API_VERSION;
883	coroapi.transfer = api_transfer;	980	coroapi.transfer = api_transfer;
…		…
891	Coro__State coro;	988	Coro__State coro;
892		989
893	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	990	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
894	croak ("Coro::State::_newprocess expects an arrayref");	991	croak ("Coro::State::_newprocess expects an arrayref");
895		992
896	New (0, coro, 1, struct coro);	993	Newz (0, coro, 1, struct coro);
897		994
898	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	995	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
899	coro->mainstack = 0; /* actual work is done inside transfer */	996	/coro->mainstack = 0; //actual work is done inside transfer /
900	coro->stack = 0;	997	/coro->stack = 0;/
		998
		999	/* same as JMPENV_BOOTSTRAP */
		1000	/* we might be able to recycle start_env, but safe is safe */
		1001	/Zero(&coro->start_env, 1, JMPENV);/
		1002	coro->start_env.je_ret = -1;
		1003	coro->start_env.je_mustcatch = TRUE;
901		1004
902	RETVAL = coro;	1005	RETVAL = coro;
903	OUTPUT:	1006	OUTPUT:
904	RETVAL	1007	RETVAL
905		1008
906	void	1009	void
907	transfer(prev, next, flags)	1010	transfer(prev, next, flags)
908	Coro::State_or_hashref prev	1011	SV *prev
909	Coro::State_or_hashref next	1012	SV *next
910	int flags	1013	int flags
911	PROTOTYPE: @	1014	PROTOTYPE: @
912	CODE:	1015	CODE:
913	PUTBACK;	1016	PUTBACK;
		1017	SV_CORO (next, "Coro::transfer");
		1018	SV_CORO (prev, "Coro::transfer");
914	transfer (aTHX_ prev, next, flags);	1019	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
915	SPAGAIN;	1020	SPAGAIN;
916		1021
917	void	1022	void
918	DESTROY(coro)	1023	DESTROY(coro)
919	Coro::State coro	1024	Coro::State coro
…		…
922	if (coro->mainstack && coro->mainstack != main_mainstack)	1027	if (coro->mainstack && coro->mainstack != main_mainstack)
923	{	1028	{
924	struct coro temp;	1029	struct coro temp;
925		1030
926	PUTBACK;	1031	PUTBACK;
927	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1032	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
928	LOAD(aTHX_ coro);	1033	LOAD (aTHX_ coro);
929	SPAGAIN;	1034	SPAGAIN;
930		1035
931	destroy_stacks (aTHX);	1036	destroy_stacks (aTHX);
932		1037
933	LOAD((&temp)); /* this will get rid of defsv etc.. */	1038	LOAD ((&temp)); /* this will get rid of defsv etc.. */
934	SPAGAIN;	1039	SPAGAIN;
935		1040
936	coro->mainstack = 0;	1041	coro->mainstack = 0;
937	}	1042	}
938		1043
939	deallocate_stack (coro);	1044	deallocate_stack (coro);
940		1045	SvREFCNT_dec (coro->args);
941	Safefree (coro);	1046	Safefree (coro);
942
943	void
944	flush()
945	CODE:
946	#ifdef MAY_FLUSH
947	flush_padlist_cache ();
948	#endif
949		1047
950	void	1048	void
951	_exit(code)	1049	_exit(code)
952	int code	1050	int code
953	PROTOTYPE: $	1051	PROTOTYPE: $
954	CODE:	1052	CODE:
955	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
956	_exit (code);	1053	_exit (code);
957	#else
958	signal (SIGTERM, SIG_DFL);
959	raise (SIGTERM);
960	exit (code);
961	#endif
962		1054
963	MODULE = Coro::State PACKAGE = Coro::Cont	1055	MODULE = Coro::State PACKAGE = Coro::Cont
964		1056
965	# this is slightly dirty (should expose a c-level api)	1057	# this is slightly dirty (should expose a c-level api)
966		1058
967	void	1059	void
968	yield(...)	1060	yield(...)
969	PROTOTYPE: @	1061	PROTOTYPE: @
970	CODE:	1062	CODE:
971	static SV *returnstk;	1063	SV *yieldstack;
972	SV *sv;	1064	SV *sv;
973	AV *defav = GvAV (PL_defgv);	1065	AV *defav = GvAV (PL_defgv);
974	struct coro prev, next;	1066	struct coro prev, next;
975		1067
976	if (!returnstk)	1068	yieldstack = *hv_fetch (
977	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1069	(HV *)SvRV (GvSV (coro_current)),
		1070	"yieldstack", sizeof ("yieldstack") - 1,
		1071	0
		1072	);
978		1073
979	/* set up @_ -- ugly */	1074	/* set up @_ -- ugly */
980	av_clear (defav);	1075	av_clear (defav);
981	av_fill (defav, items - 1);	1076	av_fill (defav, items - 1);
982	while (items--)	1077	while (items--)
983	av_store (defav, items, SvREFCNT_inc (ST(items)));	1078	av_store (defav, items, SvREFCNT_inc (ST(items)));
984		1079
985	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
986	sv = av_pop ((AV *)SvRV (returnstk));	1080	sv = av_pop ((AV *)SvRV (yieldstack));
987	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1081	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
988	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1082	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
989	SvREFCNT_dec (sv);	1083	SvREFCNT_dec (sv);
990		1084
991	transfer(aTHX_ prev, next, 0);	1085	transfer (aTHX_ prev, next, 0);
992		1086
993	MODULE = Coro::State PACKAGE = Coro	1087	MODULE = Coro::State PACKAGE = Coro
994		1088
995	# this is slightly dirty (should expose a c-level api)	1089	# this is slightly dirty (should expose a c-level api)
996		1090
…		…
1014		1108
1015	{	1109	{
1016	SV *sv = perl_get_sv("Coro::API", 1);	1110	SV *sv = perl_get_sv("Coro::API", 1);
1017		1111
1018	coroapi.schedule = api_schedule;	1112	coroapi.schedule = api_schedule;
		1113	coroapi.cede = api_cede;
1019	coroapi.ready = api_ready;	1114	coroapi.ready = api_ready;
1020	coroapi.nready = &coro_nready;	1115	coroapi.nready = &coro_nready;
1021	coroapi.current = coro_current;	1116	coroapi.current = coro_current;
1022		1117
1023	GCoroAPI = &coroapi;	1118	GCoroAPI = &coroapi;
1024	sv_setiv(sv, (IV)&coroapi);	1119	sv_setiv(sv, (IV)&coroapi);
1025	SvREADONLY_on(sv);	1120	SvREADONLY_on(sv);
1026	}	1121	}
1027	}	1122	}
1028		1123
		1124	#if !PERL_MICRO
		1125
1029	void	1126	void
1030	ready(self)	1127	ready(self)
1031	SV * self	1128	SV * self
		1129	PROTOTYPE: $
1032	CODE:	1130	CODE:
1033	api_ready (self);	1131	api_ready (self);
		1132
		1133	#endif
1034		1134
1035	int	1135	int
1036	nready(...)	1136	nready(...)
1037	PROTOTYPE:	1137	PROTOTYPE:
1038	CODE:	1138	CODE:
…		…
1041	RETVAL	1141	RETVAL
1042		1142
1043	void	1143	void
1044	schedule(...)	1144	schedule(...)
1045	PROTOTYPE:	1145	PROTOTYPE:
1046	ALIAS:
1047	cede = 1
1048	CODE:	1146	CODE:
1049	api_schedule (ix);	1147	api_schedule ();
1050		1148
		1149	void
		1150	cede(...)
		1151	PROTOTYPE:
		1152	CODE:
		1153	api_cede ();
		1154

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Comparing Coro/Coro/State.xs (file contents): Revision 1.28 by root, Sat Aug 25 21:32:05 2001 UTC vs. Revision 1.67 by root, Mon Dec 12 20:07:44 2005 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.28 by root, Sat Aug 25 21:32:05 2001 UTC vs.
Revision 1.67 by root, Mon Dec 12 20:07:44 2005 UTC