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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.35 by root, Mon Sep 24 01:36:20 2001 UTC vs.
Revision 1.69 by root, Fri Dec 16 01:33:20 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	#if PERL_VERSION < 6
		12	# ifndef PL_ppaddr
		13	# define PL_ppaddr ppaddr
		14	# endif
		15	# ifndef call_sv
		16	# define call_sv perl_call_sv
		17	# endif
		18	# ifndef get_sv
		19	# define get_sv perl_get_sv
		20	# endif
		21	# ifndef get_cv
		22	# define get_cv perl_get_cv
		23	# endif
		24	# ifndef IS_PADGV
		25	# define IS_PADGV(v) 0
		26	# endif
		27	# ifndef IS_PADCONST
		28	# define IS_PADCONST(v) 0
		29	# endif
		30	#endif
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 and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
25		48
26	/* The next macro should declare a variable stacklevel that contains and approximation	49	/* 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	50	* to the current C stack pointer. Its property is that it changes with each call
32		55
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		57
35	#include "CoroAPI.h"	58	#include "CoroAPI.h"
36		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 (void)0
		66	# define UNLOCK (void)0
		67	#endif
		68
37	static struct CoroAPI coroapi;	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 */
38		75
39	/* 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... */
40	typedef struct {	77	typedef struct {
41	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
…		…
47	void *sptr;	84	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	86	} coro_stack;
50		87
51	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
52	/* the optional C context */	92	/* the optional C context */
53	coro_stack *stack;	93	coro_stack *stack;
54	void *cursp;	94	void *cursp;
55	int gencnt;	95	int gencnt;
56		96
…		…
68	AV *curstack;	108	AV *curstack;
69	AV *mainstack;	109	AV *mainstack;
70	SV **stack_sp;	110	SV **stack_sp;
71	OP *op;	111	OP *op;
72	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
73	SV **stack_base;	115	SV **stack_base;
74	SV **stack_max;	116	SV **stack_max;
75	SV **tmps_stack;	117	SV **tmps_stack;
76	I32 tmps_floor;	118	I32 tmps_floor;
77	I32 tmps_ix;	119	I32 tmps_ix;
…		…
86	I32 savestack_ix;	128	I32 savestack_ix;
87	I32 savestack_max;	129	I32 savestack_max;
88	OP **retstack;	130	OP **retstack;
89	I32 retstack_ix;	131	I32 retstack_ix;
90	I32 retstack_max;	132	I32 retstack_max;
		133	PMOP *curpm;
91	COP *curcop;	134	COP *curcop;
92	JMPENV *top_env;	135	JMPENV *top_env;
93		136
94	/* data associated with this coroutine (initial args) */	137	/* data associated with this coroutine (initial args) */
95	AV *args;	138	AV *args;
96	};	139	};
97		140
98	typedef struct coro *Coro__State;	141	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	142	typedef struct coro *Coro__State_or_hashref;
100		143
101	static AV main_mainstack; / used to differentiate between $main and others */
102	static HV *coro_state_stash;
103	static SV *ucoro_state_sv;
104	static U32 ucoro_state_hash;
105	static HV *padlist_cache;
106
107	/* mostly copied from op.c:cv_clone2 */	144	/* mostly copied from op.c:cv_clone2 */
108	STATIC AV *	145	STATIC AV *
109	clone_padlist (AV *protopadlist)	146	clone_padlist (pTHX_ AV *protopadlist)
110	{	147	{
111	AV *av;	148	AV *av;
112	I32 ix;	149	I32 ix;
113	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
114	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
138	AvFLAGS (av) = AVf_REIFY;	175	AvFLAGS (av) = AVf_REIFY;
139		176
140	for (ix = fpad; ix > 0; ix--)	177	for (ix = fpad; ix > 0; ix--)
141	{	178	{
142	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		180
143	if (namesv && namesv != &PL_sv_undef)	181	if (namesv && namesv != &PL_sv_undef)
144	{	182	{
145	char name = SvPVX (namesv); / XXX */	183	char name = SvPVX (namesv); / XXX */
		184
146	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
147	{ /* lexical from outside? */	186	{ /* lexical from outside? */
148	npad[ix] = SvREFCNT_inc (ppad[ix]);	187	npad[ix] = SvREFCNT_inc (ppad[ix]);
149	}	188	}
150	else	189	else
…		…
156	sv = (SV *) newAV ();	195	sv = (SV *) newAV ();
157	else if (*name == '%')	196	else if (*name == '%')
158	sv = (SV *) newHV ();	197	sv = (SV *) newHV ();
159	else	198	else
160	sv = NEWSV (0, 0);	199	sv = NEWSV (0, 0);
		200
		201	#ifdef SvPADBUSY
161	if (!SvPADBUSY (sv))	202	if (!SvPADBUSY (sv))
		203	#endif
162	SvPADMY_on (sv);	204	SvPADMY_on (sv);
		205
163	npad[ix] = sv;	206	npad[ix] = sv;
164	}	207	}
165	}	208	}
166	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
167	{	210	{
…		…
196	#endif	239	#endif
197		240
198	return newpadlist;	241	return newpadlist;
199	}	242	}
200		243
201	#ifdef MAY_FLUSH
202	STATIC void	244	STATIC void
203	free_padlist (AV *padlist)	245	free_padlist (pTHX_ AV *padlist)
204	{	246	{
205	/* may be during global destruction */	247	/* may be during global destruction */
206	if (SvREFCNT(padlist))	248	if (SvREFCNT (padlist))
207	{	249	{
208	I32 i = AvFILLp(padlist);	250	I32 i = AvFILLp (padlist);
209	while (i >= 0)	251	while (i >= 0)
210	{	252	{
211	SV **svp = av_fetch(padlist, i--, FALSE);	253	SV **svp = av_fetch (padlist, i--, FALSE);
212	SV sv = svp ? svp : Nullsv;
213	if (sv)	254	if (svp)
		255	{
		256	SV *sv;
		257	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
214	SvREFCNT_dec(sv);	258	SvREFCNT_dec (sv);
		259
		260	SvREFCNT_dec (*svp);
		261	}
215	}	262	}
216		263
217	SvREFCNT_dec((SV*)padlist);	264	SvREFCNT_dec ((SV*)padlist);
218	}	265	}
219	}	266	}
220	#endif	267
		268	STATIC int
		269	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		270	{
		271	AV *padlist;
		272	AV av = (AV )mg->mg_obj;
		273
		274	/* casting is fun. */
		275	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		276	free_padlist (aTHX_ padlist);
		277
		278	SvREFCNT_dec (av);
		279	}
		280
		281	#define PERL_MAGIC_coro PERL_MAGIC_ext
		282
		283	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221		284
222	/* the next two functions merely cache the padlists */	285	/* the next two functions merely cache the padlists */
223	STATIC void	286	STATIC void
224	get_padlist (CV *cv)	287	get_padlist (pTHX_ CV *cv)
225	{	288	{
226	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	289	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
227		290
228	if (he && AvFILLp ((AV )he) >= 0)	291	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	292	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
230	else	293	else
231	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	294	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
232	}	295	}
233		296
234	STATIC void	297	STATIC void
235	put_padlist (CV *cv)	298	put_padlist (pTHX_ CV *cv)
236	{	299	{
237	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	300	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
238		301
239	if (SvTYPE (*he) != SVt_PVAV)	302	if (!mg)
240	{	303	{
241	SvREFCNT_dec (*he);	304	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		305	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		306	mg->mg_virtual = &vtbl_coro;
242	he = (SV )newAV ();	307	mg->mg_obj = (SV *)newAV ();
243	}	308	}
244		309
245	av_push ((AV )he, (SV *)CvPADLIST (cv));	310	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
246	}	311	}
247
248	#ifdef MAY_FLUSH
249	STATIC void
250	flush_padlist_cache ()
251	{
252	HV *hv = padlist_cache;
253	padlist_cache = newHV ();
254
255	if (hv_iterinit (hv))
256	{
257	HE *he;
258	AV *padlist;
259
260	while (!!(he = hv_iternext (hv)))
261	{
262	AV av = (AV )HeVAL(he);
263
264	/* casting is fun. */
265	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
266	free_padlist (padlist);
267	}
268	}
269
270	SvREFCNT_dec (hv);
271	}
272	#endif
273		312
274	#define SB do {	313	#define SB do {
275	#define SE } while (0)	314	#define SE } while (0)
276		315
277	#define LOAD(state) load_state(aTHX_ (state));	316	#define LOAD(state) load_state(aTHX_ (state));
278	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	317	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279		318
280	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	319	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281		320
282	static void	321	static void
283	load_state(pTHX_ Coro__State c)	322	load_state(pTHX_ Coro__State c)
284	{	323	{
285	PL_dowarn = c->dowarn;	324	PL_dowarn = c->dowarn;
…		…
289	PL_curstack = c->curstack;	328	PL_curstack = c->curstack;
290	PL_mainstack = c->mainstack;	329	PL_mainstack = c->mainstack;
291	PL_stack_sp = c->stack_sp;	330	PL_stack_sp = c->stack_sp;
292	PL_op = c->op;	331	PL_op = c->op;
293	PL_curpad = c->curpad;	332	PL_curpad = c->curpad;
		333	PL_comppad = c->comppad;
		334	PL_compcv = c->compcv;
294	PL_stack_base = c->stack_base;	335	PL_stack_base = c->stack_base;
295	PL_stack_max = c->stack_max;	336	PL_stack_max = c->stack_max;
296	PL_tmps_stack = c->tmps_stack;	337	PL_tmps_stack = c->tmps_stack;
297	PL_tmps_floor = c->tmps_floor;	338	PL_tmps_floor = c->tmps_floor;
298	PL_tmps_ix = c->tmps_ix;	339	PL_tmps_ix = c->tmps_ix;
…		…
307	PL_savestack_ix = c->savestack_ix;	348	PL_savestack_ix = c->savestack_ix;
308	PL_savestack_max = c->savestack_max;	349	PL_savestack_max = c->savestack_max;
309	PL_retstack = c->retstack;	350	PL_retstack = c->retstack;
310	PL_retstack_ix = c->retstack_ix;	351	PL_retstack_ix = c->retstack_ix;
311	PL_retstack_max = c->retstack_max;	352	PL_retstack_max = c->retstack_max;
		353	PL_curpm = c->curpm;
312	PL_curcop = c->curcop;	354	PL_curcop = c->curcop;
313	PL_top_env = c->top_env;	355	PL_top_env = c->top_env;
314		356
315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	357	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	358	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
325	{	367	{
326	AV padlist = (AV )POPs;	368	AV padlist = (AV )POPs;
327		369
328	if (padlist)	370	if (padlist)
329	{	371	{
330	put_padlist (cv); /* mark this padlist as available */	372	put_padlist (aTHX_ cv); /* mark this padlist as available */
331	CvPADLIST(cv) = padlist;	373	CvPADLIST(cv) = padlist;
332	#ifdef USE_THREADS
333	/CvOWNER(cv) = (struct perl_thread )POPs;*/
334	#endif
335	}	374	}
336		375
337	++CvDEPTH(cv);	376	++CvDEPTH(cv);
338	}	377	}
339		378
…		…
366	if (CxTYPE(cx) == CXt_SUB)	405	if (CxTYPE(cx) == CXt_SUB)
367	{	406	{
368	CV *cv = cx->blk_sub.cv;	407	CV *cv = cx->blk_sub.cv;
369	if (CvDEPTH(cv))	408	if (CvDEPTH(cv))
370	{	409	{
371	#ifdef USE_THREADS
372	/XPUSHs ((SV )CvOWNER(cv));*/
373	/CvOWNER(cv) = 0;/
374	/error must unlock this cv etc.. etc.../
375	#endif
376	EXTEND (SP, CvDEPTH(cv)*2);	410	EXTEND (SP, CvDEPTH(cv)*2);
377		411
378	while (--CvDEPTH(cv))	412	while (--CvDEPTH(cv))
379	{	413	{
380	/* this tells the restore code to increment CvDEPTH */	414	/* this tells the restore code to increment CvDEPTH */
…		…
383	}	417	}
384		418
385	PUSHs ((SV *)CvPADLIST(cv));	419	PUSHs ((SV *)CvPADLIST(cv));
386	PUSHs ((SV *)cv);	420	PUSHs ((SV *)cv);
387		421
388	get_padlist (cv); /* this is a monster */	422	get_padlist (aTHX_ cv); /* this is a monster */
389	}	423	}
390	}	424	}
		425	#ifdef CXt_FORMAT
391	else if (CxTYPE(cx) == CXt_FORMAT)	426	else if (CxTYPE(cx) == CXt_FORMAT)
392	{	427	{
393	/* I never used formats, so how should I know how these are implemented? */	428	/* I never used formats, so how should I know how these are implemented? */
394	/* my bold guess is as a simple, plain sub... */	429	/* my bold guess is as a simple, plain sub... */
395	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	430	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396	}	431	}
		432	#endif
397	}	433	}
398		434
399	if (top_si->si_type == PERLSI_MAIN)	435	if (top_si->si_type == PERLSI_MAIN)
400	break;	436	break;
401		437
…		…
418	c->curstack = PL_curstack;	454	c->curstack = PL_curstack;
419	c->mainstack = PL_mainstack;	455	c->mainstack = PL_mainstack;
420	c->stack_sp = PL_stack_sp;	456	c->stack_sp = PL_stack_sp;
421	c->op = PL_op;	457	c->op = PL_op;
422	c->curpad = PL_curpad;	458	c->curpad = PL_curpad;
		459	c->comppad = PL_comppad;
		460	c->compcv = PL_compcv;
423	c->stack_base = PL_stack_base;	461	c->stack_base = PL_stack_base;
424	c->stack_max = PL_stack_max;	462	c->stack_max = PL_stack_max;
425	c->tmps_stack = PL_tmps_stack;	463	c->tmps_stack = PL_tmps_stack;
426	c->tmps_floor = PL_tmps_floor;	464	c->tmps_floor = PL_tmps_floor;
427	c->tmps_ix = PL_tmps_ix;	465	c->tmps_ix = PL_tmps_ix;
…		…
436	c->savestack_ix = PL_savestack_ix;	474	c->savestack_ix = PL_savestack_ix;
437	c->savestack_max = PL_savestack_max;	475	c->savestack_max = PL_savestack_max;
438	c->retstack = PL_retstack;	476	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;	477	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;	478	c->retstack_max = PL_retstack_max;
		479	c->curpm = PL_curpm;
441	c->curcop = PL_curcop;	480	c->curcop = PL_curcop;
442	c->top_env = PL_top_env;	481	c->top_env = PL_top_env;
443	}	482	}
444		483
445	/*	484	/*
446	* allocate various perl stacks. This is an exact copy	485	* allocate various perl stacks. This is an exact copy
447	* of perl.c:init_stacks, except that it uses less memory	486	* of perl.c:init_stacks, except that it uses less memory
448	* on the assumption that coroutines do not usually need	487	* on the (sometimes correct) assumption that coroutines do
449	* a lot of stackspace.	488	* not usually need a lot of stackspace.
450	*/	489	*/
451	STATIC void	490	STATIC void
452	coro_init_stacks (pTHX)	491	coro_init_stacks (pTHX)
453	{	492	{
		493	LOCK;
		494
454	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	495	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455	PL_curstackinfo->si_type = PERLSI_MAIN;	496	PL_curstackinfo->si_type = PERLSI_MAIN;
456	PL_curstack = PL_curstackinfo->si_stack;	497	PL_curstack = PL_curstackinfo->si_stack;
457	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	498	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458		499
…		…
467		508
468	New(54,PL_markstack,16,I32);	509	New(54,PL_markstack,16,I32);
469	PL_markstack_ptr = PL_markstack;	510	PL_markstack_ptr = PL_markstack;
470	PL_markstack_max = PL_markstack + 16;	511	PL_markstack_max = PL_markstack + 16;
471		512
		513	#ifdef SET_MARK_OFFSET
472	SET_MARK_OFFSET;	514	SET_MARK_OFFSET;
		515	#endif
473		516
474	New(54,PL_scopestack,16,I32);	517	New(54,PL_scopestack,16,I32);
475	PL_scopestack_ix = 0;	518	PL_scopestack_ix = 0;
476	PL_scopestack_max = 16;	519	PL_scopestack_max = 16;
477		520
…		…
480	PL_savestack_max = 96;	523	PL_savestack_max = 96;
481		524
482	New(54,PL_retstack,8,OP*);	525	New(54,PL_retstack,8,OP*);
483	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
484	PL_retstack_max = 8;	527	PL_retstack_max = 8;
		528
		529	UNLOCK;
485	}	530	}
486		531
487	/*	532	/*
488	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
489	* still there is a memleak of 128 bytes...
490	*/	534	*/
491	STATIC void	535	STATIC void
492	destroy_stacks(pTHX)	536	destroy_stacks(pTHX)
493	{	537	{
494	if (!IN_DESTRUCT)	538	if (!IN_DESTRUCT)
495	{	539	{
496	/* is this ugly, I ask? */	540	/* is this ugly, I ask? */
497	while (PL_scopestack_ix)	541	LEAVE_SCOPE (0);
498	LEAVE;
499		542
500	/* sure it is, but more important: is it correct?? :/ */	543	/* sure it is, but more important: is it correct?? :/ */
501	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
502	FREETMPS;	544	FREETMPS;
		545
		546	/POPSTACK_TO (PL_mainstack);//D//use/
503	}	547	}
504		548
505	while (PL_curstackinfo->si_next)	549	while (PL_curstackinfo->si_next)
506	PL_curstackinfo = PL_curstackinfo->si_next;	550	PL_curstackinfo = PL_curstackinfo->si_next;
507		551
508	while (PL_curstackinfo)	552	while (PL_curstackinfo)
509	{	553	{
510	PERL_SI *p = PL_curstackinfo->si_prev;	554	PERL_SI *p = PL_curstackinfo->si_prev;
511		555
512	{	556	{ /D//remove/
513	dSP;	557	dSP;
514	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	558	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515	PUTBACK; /* possibly superfluous */	559	PUTBACK; /* possibly superfluous */
516	}	560	}
517		561
518	if (!IN_DESTRUCT)	562	if (!IN_DESTRUCT)
519	{	563	{
520	dounwind(-1);	564	dounwind (-1);/D//remove/
521	SvREFCNT_dec(PL_curstackinfo->si_stack);	565	SvREFCNT_dec (PL_curstackinfo->si_stack);
522	}	566	}
523		567
524	Safefree(PL_curstackinfo->si_cxstack);	568	Safefree (PL_curstackinfo->si_cxstack);
525	Safefree(PL_curstackinfo);	569	Safefree (PL_curstackinfo);
526	PL_curstackinfo = p;	570	PL_curstackinfo = p;
527	}	571	}
528		572
529	Safefree(PL_tmps_stack);	573	Safefree (PL_tmps_stack);
530	Safefree(PL_markstack);	574	Safefree (PL_markstack);
531	Safefree(PL_scopestack);	575	Safefree (PL_scopestack);
532	Safefree(PL_savestack);	576	Safefree (PL_savestack);
533	Safefree(PL_retstack);	577	Safefree (PL_retstack);
534	}	578	}
535		579
536	static void	580	static void
537	allocate_stack (Coro__State ctx, int alloc)	581	allocate_stack (Coro__State ctx, int alloc)
538	{	582	{
…		…
541	New (0, stack, 1, coro_stack);	585	New (0, stack, 1, coro_stack);
542		586
543	stack->refcnt = 1;	587	stack->refcnt = 1;
544	stack->usecnt = 1;	588	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;	589	stack->gencnt = ctx->gencnt = 0;
		590
546	if (alloc)	591	if (alloc)
547	{	592	{
548	#ifdef HAVE_MMAP	593	#if HAVE_MMAP
549	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	594	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
550	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	595	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
551	if (stack->sptr == (void *)-1)	596	if (stack->sptr == (void *)-1)
552	#endif	597	#endif
553	{	598	{
554	/FIXME//D//* reasonable stack size! */	599	/FIXME//D//* reasonable stack size! */
555	stack->ssize = -4096 * sizeof (long);	600	stack->ssize = - (STACKSIZE * sizeof (long));
556	New (0, stack->sptr, 4096, long);	601	New (0, stack->sptr, STACKSIZE, long);
557	}	602	}
558	}	603	}
559	else	604	else
560	stack->sptr = 0;	605	stack->sptr = 0;
561		606
…		…
575	{	620	{
576	#ifdef HAVE_MMAP	621	#ifdef HAVE_MMAP
577	if (stack->ssize > 0 && stack->sptr)	622	if (stack->ssize > 0 && stack->sptr)
578	munmap (stack->sptr, stack->ssize);	623	munmap (stack->sptr, stack->ssize);
579	else	624	else
580	#else	625	#endif
581	Safefree (stack->sptr);	626	Safefree (stack->sptr);
582	#endif	627
583	Safefree (stack);	628	Safefree (stack);
584	}	629	}
585	else if (ctx->gencnt == stack->gencnt)	630	else if (ctx->gencnt == stack->gencnt)
586	--stack->usecnt;	631	--stack->usecnt;
587	}	632	}
…		…
591	setup_coro (void *arg)	636	setup_coro (void *arg)
592	{	637	{
593	/*	638	/*
594	* emulate part of the perl startup here.	639	* emulate part of the perl startup here.
595	*/	640	*/
		641	dTHX;
596	dSP;	642	dSP;
597	Coro__State ctx = (Coro__State)arg;	643	Coro__State ctx = (Coro__State)arg;
598	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	644	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
599		645
600	coro_init_stacks (aTHX);	646	coro_init_stacks (aTHX);
601	/PL_curcop = 0;/	647	/PL_curcop = 0;/
602	/PL_in_eval = PL_in_eval;/ /* inherit */	648	/PL_in_eval = PL_in_eval;/ /* inherit */
603	SvREFCNT_dec (GvAV (PL_defgv));	649	SvREFCNT_dec (GvAV (PL_defgv));
604	GvAV (PL_defgv) = ctx->args;	650	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605		651
606	SPAGAIN;	652	SPAGAIN;
607		653
608	if (ctx->stack)	654	if (ctx->stack)
609	{	655	{
…		…
636	* that doesn't matter, though, since it is only	682	* that doesn't matter, though, since it is only
637	* pp_nextstate and we never return...	683	* pp_nextstate and we never return...
638	* ah yes, and I don't care anyways ;)	684	* ah yes, and I don't care anyways ;)
639	*/	685	*/
640	PUTBACK;	686	PUTBACK;
641	PL_op = pp_entersub();	687	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642	SPAGAIN;	688	SPAGAIN;
643		689
644	ENTER; /* necessary e.g. for dounwind */	690	ENTER; /* necessary e.g. for dounwind */
645	}	691	}
646	}	692	}
…		…
649	continue_coro (void *arg)	695	continue_coro (void *arg)
650	{	696	{
651	/*	697	/*
652	* this is a _very_ stripped down perl interpreter ;)	698	* this is a _very_ stripped down perl interpreter ;)
653	*/	699	*/
		700	dTHX;
654	Coro__State ctx = (Coro__State)arg;	701	Coro__State ctx = (Coro__State)arg;
655	JMPENV coro_start_env;	702	JMPENV coro_start_env;
656		703
657	/* same as JMPENV_BOOTSTRAP */
658	Zero(&coro_start_env, 1, JMPENV);
659	coro_start_env.je_ret = -1;
660	coro_start_env.je_mustcatch = TRUE;
661	PL_top_env = &coro_start_env;	704	PL_top_env = &ctx->start_env;
662		705
663	ctx->cursp = 0;	706	ctx->cursp = 0;
664	PL_op = PL_op->op_next;	707	PL_op = PL_op->op_next;
665	CALLRUNOPS(aTHX);	708	CALLRUNOPS(aTHX);
666		709
667	abort ();	710	abort ();
668	}	711	}
669		712
670	STATIC void	713	STATIC void
671	transfer(pTHX_ struct coro prev, struct coro next, int flags)	714	transfer (pTHX_ struct coro prev, struct coro next, int flags)
672	{	715	{
673	dSTACKLEVEL;	716	dSTACKLEVEL;
674	static struct coro *xnext;
675		717
676	if (prev != next)	718	if (prev != next)
677	{	719	{
678	xnext = next;
679
680	if (next->mainstack)	720	if (next->mainstack)
681	{	721	{
		722	LOCK;
682	SAVE (prev, flags);	723	SAVE (prev, flags);
683	LOAD (next);	724	LOAD (next);
		725	UNLOCK;
684		726
685	/* mark this state as in-use */	727	/* mark this state as in-use */
686	next->mainstack = 0;	728	next->mainstack = 0;
687	next->tmps_ix = -2;	729	next->tmps_ix = -2;
688		730
…		…
707	continue_coro, (void *)next,	749	continue_coro, (void *)next,
708	next->stack->sptr, labs (next->stack->ssize));	750	next->stack->sptr, labs (next->stack->ssize));
709	}	751	}
710		752
711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	753	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		754	prev->cursp = stacklevel;
712	/* don't add any code here */	755	/* don't add any code here */
713	}	756	}
714		757	else
		758	next->cursp = stacklevel;
715	}	759	}
716	else if (next->tmps_ix == -2)	760	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	761	croak ("tried to transfer to running coroutine");
718	else	762	else
719	{	763	{
		764	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	765	SAVE (prev, -1); /* first get rid of the old state */
		766	UNLOCK;
721		767
722	if (flags & TRANSFER_SAVE_CCTXT)	768	if (flags & TRANSFER_SAVE_CCTXT)
723	{	769	{
724	if (!prev->stack)	770	if (!prev->stack)
725	allocate_stack (prev, 0);	771	allocate_stack (prev, 0);
726		772
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	773	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	774	{
		775	PL_top_env = &next->start_env;
		776
729	setup_coro (next);	777	setup_coro (next);
		778	next->cursp = stacklevel;
730		779
731	prev->stack->refcnt++;	780	prev->stack->refcnt++;
732	prev->stack->usecnt++;	781	prev->stack->usecnt++;
733	next->stack = prev->stack;	782	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	783	next->gencnt = prev->gencnt;
735	}	784	}
736	else	785	else
737	{	786	{
		787	assert (!next->stack);
738	allocate_stack (next, 1);	788	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	789	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	790	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	791	next->stack->sptr, labs (next->stack->ssize));
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	792	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		793	prev->cursp = stacklevel;
743	/* don't add any code here */	794	/* don't add any code here */
744	}	795	}
745	}	796	}
746	else	797	else
		798	{
747	setup_coro (next);	799	setup_coro (next);
		800	next->cursp = stacklevel;
		801	}
748	}	802	}
749
750	/*
751	* xnext is now either prev or next, depending on wether
752	* we switched the c stack or not. that's why i use a global
753	* variable, that should become thread-specific at one point.
754	*/
755	xnext->cursp = stacklevel;
756	}	803	}
757	}
758		804
759	static struct coro *	805	LOCK;
760	sv_to_coro (SV arg, const char funcname, const char *varname)	806	if (coro_mortal)
761	{
762	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763	{	807	{
764	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	808	SvREFCNT_dec (coro_mortal);
765		809	coro_mortal = 0;
766	if (!he)
767	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
768
769	arg = HeVAL(he);
770	}	810	}
771		811	UNLOCK;
		812	}
		813
		814	#define SV_CORO(sv,func) \
		815	do { \
		816	if (SvROK (sv)) \
		817	sv = SvRV (sv); \
		818	\
		819	if (SvTYPE (sv) == SVt_PVHV) \
		820	{ \
		821	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		822	\
		823	if (!he) \
		824	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		825	\
		826	(sv) = SvRV (HeVAL(he)); \
		827	} \
		828	\
772	/* must also be changed inside Coro::Cont::yield */	829	/* must also be changed inside Coro::Cont::yield */ \
773	if (SvROK(arg) && SvOBJECT(SvRV(arg))	830	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
774	&& SvSTASH(SvRV(arg)) == coro_state_stash)
775	return (struct coro ) SvIV((SV)SvRV(arg));
776
777	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	831	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778	/NORETURN/	832	\
779	}	833	} while(0)
		834
		835	#define SvSTATE(sv) (struct coro *)SvIV (sv)
780		836
781	static void	837	static void
782	api_transfer(pTHX_ SV prev, SV next, int flags)	838	api_transfer(pTHX_ SV prev, SV next, int flags)
783	{	839	{
784	transfer(aTHX_	840	SV_CORO (prev, "Coro::transfer");
785	sv_to_coro (prev, "Coro::transfer", "prev"),	841	SV_CORO (next, "Coro::transfer");
786	sv_to_coro (next, "Coro::transfer", "next"),	842
787	flags);	843	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788	}	844	}
789		845
790	/ Coro ******************************************************************/	846	/ Coro ******************************************************************/
791		847
792	#define PRIO_MAX 3	848	#define PRIO_MAX 3
…		…
800	static GV coro_current, coro_idle;	856	static GV coro_current, coro_idle;
801	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	857	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802	static int coro_nready;	858	static int coro_nready;
803		859
804	static void	860	static void
805	coro_enq (SV *sv)	861	coro_enq (pTHX_ SV *sv)
806	{	862	{
807	if (SvROK (sv))	863	if (SvTYPE (sv) == SVt_PVHV)
808	{	864	{
809	SV *hv = SvRV (sv);
810	if (SvTYPE (hv) == SVt_PVHV)
811	{
812	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	865	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
813	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	866	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814		867
815	prio = prio > PRIO_MAX ? PRIO_MAX	868	prio = prio > PRIO_MAX ? PRIO_MAX
816	: prio < PRIO_MIN ? PRIO_MIN	869	: prio < PRIO_MIN ? PRIO_MIN
817	: prio;	870	: prio;
818		871
819	av_push (coro_ready [prio - PRIO_MIN], sv);	872	av_push (coro_ready [prio - PRIO_MIN], sv);
820	coro_nready++;	873	coro_nready++;
821		874
822	return;	875	return;
823	}
824	}	876	}
825		877
826	croak ("Coro::ready tried to enqueue something that is not a coroutine");	878	croak ("Coro::ready tried to enqueue something that is not a coroutine");
827	}	879	}
828		880
829	static SV *	881	static SV *
830	coro_deq (int min_prio)	882	coro_deq (pTHX_ int min_prio)
831	{	883	{
832	int prio = PRIO_MAX - PRIO_MIN;	884	int prio = PRIO_MAX - PRIO_MIN;
833		885
834	min_prio -= PRIO_MIN;	886	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	887	if (min_prio < 0)
…		…
846	}	898	}
847		899
848	static void	900	static void
849	api_ready (SV *coro)	901	api_ready (SV *coro)
850	{	902	{
		903	dTHX;
		904
		905	if (SvROK (coro))
		906	coro = SvRV (coro);
		907
		908	LOCK;
851	coro_enq (SvREFCNT_inc (coro));	909	coro_enq (aTHX_ SvREFCNT_inc (coro));
		910	UNLOCK;
852	}	911	}
853		912
854	static void	913	static void
855	api_schedule (int cede)	914	api_schedule (void)
856	{	915	{
		916	dTHX;
		917
857	SV prev, next;	918	SV prev, next;
858		919
		920	LOCK;
		921
859	prev = GvSV (coro_current);	922	prev = SvRV (GvSV (coro_current));
860
861	if (cede)
862	coro_enq (SvREFCNT_inc (prev));
863
864	next = coro_deq (PRIO_MIN);	923	next = coro_deq (aTHX_ PRIO_MIN);
865		924
866	if (!next)	925	if (!next)
867	next = SvREFCNT_inc (GvSV (coro_idle));	926	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868		927
869	GvSV (coro_current) = SvREFCNT_inc (next);	928	/* free this only after the transfer */
870	transfer (aTHX_	929	coro_mortal = prev;
871	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	930	SV_CORO (prev, "Coro::schedule");
872	sv_to_coro (next, "Coro::schedule", "next coroutine"),	931
		932	SvRV (GvSV (coro_current)) = next;
		933
		934	SV_CORO (next, "Coro::schedule");
		935
		936	UNLOCK;
		937
		938	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	939	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
874	SvREFCNT_dec (next);	940	}
875	SvREFCNT_dec (prev);	941
		942	static void
		943	api_cede (void)
		944	{
		945	dTHX;
		946
		947	LOCK;
		948	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		949	UNLOCK;
		950
		951	api_schedule ();
876	}	952	}
877		953
878	MODULE = Coro::State PACKAGE = Coro::State	954	MODULE = Coro::State PACKAGE = Coro::State
879		955
880	PROTOTYPES: ENABLE	956	PROTOTYPES: ENABLE
881		957
882	BOOT:	958	BOOT:
883	{ /* {} necessary for stoopid perl-5.6.x */	959	{ /* {} necessary for stoopid perl-5.6.x */
		960	#ifdef USE_ITHREADS
		961	MUTEX_INIT (&coro_mutex);
		962	#endif
		963
884	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	964	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	965	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	966	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887		967
888	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	968	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	969	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	970	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	971	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893	if (!padlist_cache)
894	padlist_cache = newHV ();
895		972
896	main_mainstack = PL_mainstack;	973	main_mainstack = PL_mainstack;
897		974
898	coroapi.ver = CORO_API_VERSION;	975	coroapi.ver = CORO_API_VERSION;
899	coroapi.transfer = api_transfer;	976	coroapi.transfer = api_transfer;
…		…
907	Coro__State coro;	984	Coro__State coro;
908		985
909	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	986	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
910	croak ("Coro::State::_newprocess expects an arrayref");	987	croak ("Coro::State::_newprocess expects an arrayref");
911		988
912	New (0, coro, 1, struct coro);	989	Newz (0, coro, 1, struct coro);
913		990
914	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	991	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915	coro->mainstack = 0; /* actual work is done inside transfer */	992	/coro->mainstack = 0; //actual work is done inside transfer /
916	coro->stack = 0;	993	/coro->stack = 0;/
		994
		995	/* same as JMPENV_BOOTSTRAP */
		996	/* we might be able to recycle start_env, but safe is safe */
		997	/Zero(&coro->start_env, 1, JMPENV);/
		998	coro->start_env.je_ret = -1;
		999	coro->start_env.je_mustcatch = TRUE;
917		1000
918	RETVAL = coro;	1001	RETVAL = coro;
919	OUTPUT:	1002	OUTPUT:
920	RETVAL	1003	RETVAL
921		1004
922	void	1005	void
923	transfer(prev, next, flags)	1006	transfer(prev, next, flags)
924	Coro::State_or_hashref prev	1007	SV *prev
925	Coro::State_or_hashref next	1008	SV *next
926	int flags	1009	int flags
927	PROTOTYPE: @	1010	PROTOTYPE: @
928	CODE:	1011	CODE:
929	PUTBACK;	1012	PUTBACK;
		1013	SV_CORO (next, "Coro::transfer");
		1014	SV_CORO (prev, "Coro::transfer");
930	transfer (aTHX_ prev, next, flags);	1015	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931	SPAGAIN;	1016	SPAGAIN;
932		1017
933	void	1018	void
934	DESTROY(coro)	1019	DESTROY(coro)
935	Coro::State coro	1020	Coro::State coro
…		…
938	if (coro->mainstack && coro->mainstack != main_mainstack)	1023	if (coro->mainstack && coro->mainstack != main_mainstack)
939	{	1024	{
940	struct coro temp;	1025	struct coro temp;
941		1026
942	PUTBACK;	1027	PUTBACK;
943	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1028	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944	LOAD(aTHX_ coro);	1029	LOAD (aTHX_ coro);
945	SPAGAIN;	1030	SPAGAIN;
946		1031
947	destroy_stacks (aTHX);	1032	destroy_stacks (aTHX);
948		1033
949	LOAD((&temp)); /* this will get rid of defsv etc.. */	1034	LOAD ((&temp)); /* this will get rid of defsv etc.. */
950	SPAGAIN;	1035	SPAGAIN;
951		1036
952	coro->mainstack = 0;	1037	coro->mainstack = 0;
953	}	1038	}
954		1039
955	deallocate_stack (coro);	1040	deallocate_stack (coro);
956		1041	SvREFCNT_dec (coro->args);
957	Safefree (coro);	1042	Safefree (coro);
958
959	void
960	flush()
961	CODE:
962	#ifdef MAY_FLUSH
963	flush_padlist_cache ();
964	#endif
965		1043
966	void	1044	void
967	_exit(code)	1045	_exit(code)
968	int code	1046	int code
969	PROTOTYPE: $	1047	PROTOTYPE: $
970	CODE:	1048	CODE:
971	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
972	_exit (code);	1049	_exit (code);
973	#else
974	signal (SIGTERM, SIG_DFL);
975	raise (SIGTERM);
976	exit (code);
977	#endif
978		1050
979	MODULE = Coro::State PACKAGE = Coro::Cont	1051	MODULE = Coro::State PACKAGE = Coro::Cont
980		1052
981	# this is slightly dirty (should expose a c-level api)	1053	# this is slightly dirty (should expose a c-level api)
982		1054
983	void	1055	void
984	yield(...)	1056	yield(...)
985	PROTOTYPE: @	1057	PROTOTYPE: @
986	CODE:	1058	CODE:
987	static SV *returnstk;	1059	SV *yieldstack;
988	SV *sv;	1060	SV *sv;
989	AV *defav = GvAV (PL_defgv);	1061	AV *defav = GvAV (PL_defgv);
990	struct coro prev, next;	1062	struct coro prev, next;
991		1063
992	if (!returnstk)	1064	yieldstack = *hv_fetch (
993	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1065	(HV *)SvRV (GvSV (coro_current)),
		1066	"yieldstack", sizeof ("yieldstack") - 1,
		1067	0
		1068	);
994		1069
995	/* set up @_ -- ugly */	1070	/* set up @_ -- ugly */
996	av_clear (defav);	1071	av_clear (defav);
997	av_fill (defav, items - 1);	1072	av_fill (defav, items - 1);
998	while (items--)	1073	while (items--)
999	av_store (defav, items, SvREFCNT_inc (ST(items)));	1074	av_store (defav, items, SvREFCNT_inc (ST(items)));
1000		1075
1001	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1002	sv = av_pop ((AV *)SvRV (returnstk));	1076	sv = av_pop ((AV *)SvRV (yieldstack));
1003	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1077	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
1004	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1078	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
1005	SvREFCNT_dec (sv);	1079	SvREFCNT_dec (sv);
1006		1080
1007	transfer(aTHX_ prev, next, 0);	1081	transfer (aTHX_ prev, next, 0);
1008		1082
1009	MODULE = Coro::State PACKAGE = Coro	1083	MODULE = Coro::State PACKAGE = Coro
1010		1084
1011	# this is slightly dirty (should expose a c-level api)	1085	# this is slightly dirty (should expose a c-level api)
1012		1086
…		…
1030		1104
1031	{	1105	{
1032	SV *sv = perl_get_sv("Coro::API", 1);	1106	SV *sv = perl_get_sv("Coro::API", 1);
1033		1107
1034	coroapi.schedule = api_schedule;	1108	coroapi.schedule = api_schedule;
		1109	coroapi.cede = api_cede;
1035	coroapi.ready = api_ready;	1110	coroapi.ready = api_ready;
1036	coroapi.nready = &coro_nready;	1111	coroapi.nready = &coro_nready;
1037	coroapi.current = coro_current;	1112	coroapi.current = coro_current;
1038		1113
1039	GCoroAPI = &coroapi;	1114	GCoroAPI = &coroapi;
1040	sv_setiv(sv, (IV)&coroapi);	1115	sv_setiv(sv, (IV)&coroapi);
1041	SvREADONLY_on(sv);	1116	SvREADONLY_on(sv);
1042	}	1117	}
1043	}	1118	}
		1119
		1120	#if !PERL_MICRO
1044		1121
1045	void	1122	void
1046	ready(self)	1123	ready(self)
1047	SV * self	1124	SV * self
1048	PROTOTYPE: $	1125	PROTOTYPE: $
1049	CODE:	1126	CODE:
1050	api_ready (self);	1127	api_ready (self);
		1128
		1129	#endif
1051		1130
1052	int	1131	int
1053	nready(...)	1132	nready(...)
1054	PROTOTYPE:	1133	PROTOTYPE:
1055	CODE:	1134	CODE:
…		…
1058	RETVAL	1137	RETVAL
1059		1138
1060	void	1139	void
1061	schedule(...)	1140	schedule(...)
1062	PROTOTYPE:	1141	PROTOTYPE:
1063	ALIAS:
1064	cede = 1
1065	CODE:	1142	CODE:
1066	api_schedule (ix);	1143	api_schedule ();
1067		1144
		1145	void
		1146	cede(...)
		1147	PROTOTYPE:
		1148	CODE:
		1149	api_cede ();
		1150

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Comparing Coro/Coro/State.xs (file contents): Revision 1.35 by root, Mon Sep 24 01:36:20 2001 UTC vs. Revision 1.69 by root, Fri Dec 16 01:33:20 2005 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.35 by root, Mon Sep 24 01:36:20 2001 UTC vs.
Revision 1.69 by root, Fri Dec 16 01:33:20 2005 UTC