[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 1.70 by root, Mon Dec 26 19:26:52 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"
6		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
		31
		32	#include <errno.h>
7	#include <signal.h>	33	#include <signal.h>
8		34
9	#ifdef HAVE_MMAP	35	#ifdef HAVE_MMAP
10	# include <unistd.h>	36	# include <unistd.h>
11	# include <sys/mman.h>	37	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	38	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	39	# ifdef MAP_ANON
		40	# define MAP_ANONYMOUS MAP_ANON
15	# else	41	# else
16	# undef HAVE_MMAP	42	# undef HAVE_MMAP
17	# endif	43	# endif
18	# endif	44	# endif
19	#endif	45	#endif
20		46
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	47	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	48	#define UCORO_STATE "_coro_state"
25		49
26	/* The next macro should declare a variable stacklevel that contains and approximation	50	/* 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	51	* to the current C stack pointer. Its property is that it changes with each call
32		56
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	57	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		58
35	#include "CoroAPI.h"	59	#include "CoroAPI.h"
36		60
		61	#ifdef USE_ITHREADS
		62	static perl_mutex coro_mutex;
		63	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		64	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		65	#else
		66	# define LOCK (void)0
		67	# define UNLOCK (void)0
		68	#endif
		69
37	static struct CoroAPI coroapi;	70	static struct CoroAPI coroapi;
		71	static AV main_mainstack; / used to differentiate between $main and others */
		72	static HV *coro_state_stash;
		73	static SV *ucoro_state_sv;
		74	static U32 ucoro_state_hash;
		75	static SV coro_mortal; / will be freed after next transfer */
38		76
39	/* this is actually not only the c stack but also c registers etc... */	77	/* this is actually not only the c stack but also c registers etc... */
40	typedef struct {	78	typedef struct {
41	int refcnt; /* pointer reference counter */	79	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	80	int usecnt; /* shared by how many coroutines */
…		…
47	void *sptr;	85	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	86	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	87	} coro_stack;
50		88
51	struct coro {	89	struct coro {
		90	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		91	JMPENV start_env;
		92
52	/* the optional C context */	93	/* the optional C context */
53	coro_stack *stack;	94	coro_stack *stack;
54	void *cursp;	95	void *cursp;
55	int gencnt;	96	int gencnt;
56		97
…		…
68	AV *curstack;	109	AV *curstack;
69	AV *mainstack;	110	AV *mainstack;
70	SV **stack_sp;	111	SV **stack_sp;
71	OP *op;	112	OP *op;
72	SV **curpad;	113	SV **curpad;
		114	AV *comppad;
		115	CV *compcv;
73	SV **stack_base;	116	SV **stack_base;
74	SV **stack_max;	117	SV **stack_max;
75	SV **tmps_stack;	118	SV **tmps_stack;
76	I32 tmps_floor;	119	I32 tmps_floor;
77	I32 tmps_ix;	120	I32 tmps_ix;
…		…
86	I32 savestack_ix;	129	I32 savestack_ix;
87	I32 savestack_max;	130	I32 savestack_max;
88	OP **retstack;	131	OP **retstack;
89	I32 retstack_ix;	132	I32 retstack_ix;
90	I32 retstack_max;	133	I32 retstack_max;
		134	PMOP *curpm;
91	COP *curcop;	135	COP *curcop;
92	JMPENV *top_env;	136	JMPENV *top_env;
93		137
94	/* data associated with this coroutine (initial args) */	138	/* data associated with this coroutine (initial args) */
95	AV *args;	139	AV *args;
96	};	140	};
97		141
98	typedef struct coro *Coro__State;	142	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	143	typedef struct coro *Coro__State_or_hashref;
100		144
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 */	145	/* mostly copied from op.c:cv_clone2 */
108	STATIC AV *	146	STATIC AV *
109	clone_padlist (AV *protopadlist)	147	clone_padlist (pTHX_ AV *protopadlist)
110	{	148	{
111	AV *av;	149	AV *av;
112	I32 ix;	150	I32 ix;
113	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	151	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
114	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	152	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
138	AvFLAGS (av) = AVf_REIFY;	176	AvFLAGS (av) = AVf_REIFY;
139		177
140	for (ix = fpad; ix > 0; ix--)	178	for (ix = fpad; ix > 0; ix--)
141	{	179	{
142	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	180	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		181
143	if (namesv && namesv != &PL_sv_undef)	182	if (namesv && namesv != &PL_sv_undef)
144	{	183	{
145	char name = SvPVX (namesv); / XXX */	184	char name = SvPVX (namesv); / XXX */
		185
146	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	186	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
147	{ /* lexical from outside? */	187	{ /* lexical from outside? */
148	npad[ix] = SvREFCNT_inc (ppad[ix]);	188	npad[ix] = SvREFCNT_inc (ppad[ix]);
149	}	189	}
150	else	190	else
…		…
156	sv = (SV *) newAV ();	196	sv = (SV *) newAV ();
157	else if (*name == '%')	197	else if (*name == '%')
158	sv = (SV *) newHV ();	198	sv = (SV *) newHV ();
159	else	199	else
160	sv = NEWSV (0, 0);	200	sv = NEWSV (0, 0);
		201
		202	#ifdef SvPADBUSY
161	if (!SvPADBUSY (sv))	203	if (!SvPADBUSY (sv))
		204	#endif
162	SvPADMY_on (sv);	205	SvPADMY_on (sv);
		206
163	npad[ix] = sv;	207	npad[ix] = sv;
164	}	208	}
165	}	209	}
166	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	210	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
167	{	211	{
…		…
196	#endif	240	#endif
197		241
198	return newpadlist;	242	return newpadlist;
199	}	243	}
200		244
201	#ifdef MAY_FLUSH
202	STATIC void	245	STATIC void
203	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
204	{	247	{
205	/* may be during global destruction */	248	/* may be during global destruction */
206	if (SvREFCNT(padlist))	249	if (SvREFCNT (padlist))
207	{	250	{
208	I32 i = AvFILLp(padlist);	251	I32 i = AvFILLp (padlist);
209	while (i >= 0)	252	while (i >= 0)
210	{	253	{
211	SV **svp = av_fetch(padlist, i--, FALSE);	254	SV **svp = av_fetch (padlist, i--, FALSE);
212	SV sv = svp ? svp : Nullsv;
213	if (sv)	255	if (svp)
		256	{
		257	SV *sv;
		258	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
214	SvREFCNT_dec(sv);	259	SvREFCNT_dec (sv);
		260
		261	SvREFCNT_dec (*svp);
		262	}
215	}	263	}
216		264
217	SvREFCNT_dec((SV*)padlist);	265	SvREFCNT_dec ((SV*)padlist);
218	}	266	}
219	}	267	}
220	#endif	268
		269	STATIC int
		270	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		271	{
		272	AV *padlist;
		273	AV av = (AV )mg->mg_obj;
		274
		275	/* casting is fun. */
		276	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		277	free_padlist (aTHX_ padlist);
		278
		279	SvREFCNT_dec (av);
		280	}
		281
		282	#define PERL_MAGIC_coro PERL_MAGIC_ext
		283
		284	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221		285
222	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
223	STATIC void	287	STATIC void
224	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
225	{	289	{
226	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	290	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
227		291
228	if (he && AvFILLp ((AV )he) >= 0)	292	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	293	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
230	else	294	else
231	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	295	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
232	}	296	}
233		297
234	STATIC void	298	STATIC void
235	put_padlist (CV *cv)	299	put_padlist (pTHX_ CV *cv)
236	{	300	{
237	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	301	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
238		302
239	if (SvTYPE (*he) != SVt_PVAV)	303	if (!mg)
240	{	304	{
241	SvREFCNT_dec (*he);	305	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		306	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		307	mg->mg_virtual = &vtbl_coro;
242	he = (SV )newAV ();	308	mg->mg_obj = (SV *)newAV ();
243	}	309	}
244		310
245	av_push ((AV )he, (SV *)CvPADLIST (cv));	311	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
246	}	312	}
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		313
274	#define SB do {	314	#define SB do {
275	#define SE } while (0)	315	#define SE } while (0)
276		316
277	#define LOAD(state) load_state(aTHX_ (state));	317	#define LOAD(state) load_state(aTHX_ (state));
278	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	318	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279		319
280	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	320	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281		321
282	static void	322	static void
283	load_state(pTHX_ Coro__State c)	323	load_state(pTHX_ Coro__State c)
284	{	324	{
285	PL_dowarn = c->dowarn;	325	PL_dowarn = c->dowarn;
…		…
289	PL_curstack = c->curstack;	329	PL_curstack = c->curstack;
290	PL_mainstack = c->mainstack;	330	PL_mainstack = c->mainstack;
291	PL_stack_sp = c->stack_sp;	331	PL_stack_sp = c->stack_sp;
292	PL_op = c->op;	332	PL_op = c->op;
293	PL_curpad = c->curpad;	333	PL_curpad = c->curpad;
		334	PL_comppad = c->comppad;
		335	PL_compcv = c->compcv;
294	PL_stack_base = c->stack_base;	336	PL_stack_base = c->stack_base;
295	PL_stack_max = c->stack_max;	337	PL_stack_max = c->stack_max;
296	PL_tmps_stack = c->tmps_stack;	338	PL_tmps_stack = c->tmps_stack;
297	PL_tmps_floor = c->tmps_floor;	339	PL_tmps_floor = c->tmps_floor;
298	PL_tmps_ix = c->tmps_ix;	340	PL_tmps_ix = c->tmps_ix;
…		…
307	PL_savestack_ix = c->savestack_ix;	349	PL_savestack_ix = c->savestack_ix;
308	PL_savestack_max = c->savestack_max;	350	PL_savestack_max = c->savestack_max;
309	PL_retstack = c->retstack;	351	PL_retstack = c->retstack;
310	PL_retstack_ix = c->retstack_ix;	352	PL_retstack_ix = c->retstack_ix;
311	PL_retstack_max = c->retstack_max;	353	PL_retstack_max = c->retstack_max;
		354	PL_curpm = c->curpm;
312	PL_curcop = c->curcop;	355	PL_curcop = c->curcop;
313	PL_top_env = c->top_env;	356	PL_top_env = c->top_env;
314		357
315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	358	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	359	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
325	{	368	{
326	AV padlist = (AV )POPs;	369	AV padlist = (AV )POPs;
327		370
328	if (padlist)	371	if (padlist)
329	{	372	{
330	put_padlist (cv); /* mark this padlist as available */	373	put_padlist (aTHX_ cv); /* mark this padlist as available */
331	CvPADLIST(cv) = padlist;	374	CvPADLIST(cv) = padlist;
332	#ifdef USE_THREADS
333	/CvOWNER(cv) = (struct perl_thread )POPs;*/
334	#endif
335	}	375	}
336		376
337	++CvDEPTH(cv);	377	++CvDEPTH(cv);
338	}	378	}
339		379
…		…
366	if (CxTYPE(cx) == CXt_SUB)	406	if (CxTYPE(cx) == CXt_SUB)
367	{	407	{
368	CV *cv = cx->blk_sub.cv;	408	CV *cv = cx->blk_sub.cv;
369	if (CvDEPTH(cv))	409	if (CvDEPTH(cv))
370	{	410	{
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);	411	EXTEND (SP, CvDEPTH(cv)*2);
377		412
378	while (--CvDEPTH(cv))	413	while (--CvDEPTH(cv))
379	{	414	{
380	/* this tells the restore code to increment CvDEPTH */	415	/* this tells the restore code to increment CvDEPTH */
…		…
383	}	418	}
384		419
385	PUSHs ((SV *)CvPADLIST(cv));	420	PUSHs ((SV *)CvPADLIST(cv));
386	PUSHs ((SV *)cv);	421	PUSHs ((SV *)cv);
387		422
388	get_padlist (cv); /* this is a monster */	423	get_padlist (aTHX_ cv); /* this is a monster */
389	}	424	}
390	}	425	}
		426	#ifdef CXt_FORMAT
391	else if (CxTYPE(cx) == CXt_FORMAT)	427	else if (CxTYPE(cx) == CXt_FORMAT)
392	{	428	{
393	/* I never used formats, so how should I know how these are implemented? */	429	/* I never used formats, so how should I know how these are implemented? */
394	/* my bold guess is as a simple, plain sub... */	430	/* my bold guess is as a simple, plain sub... */
395	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	431	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396	}	432	}
		433	#endif
397	}	434	}
398		435
399	if (top_si->si_type == PERLSI_MAIN)	436	if (top_si->si_type == PERLSI_MAIN)
400	break;	437	break;
401		438
…		…
418	c->curstack = PL_curstack;	455	c->curstack = PL_curstack;
419	c->mainstack = PL_mainstack;	456	c->mainstack = PL_mainstack;
420	c->stack_sp = PL_stack_sp;	457	c->stack_sp = PL_stack_sp;
421	c->op = PL_op;	458	c->op = PL_op;
422	c->curpad = PL_curpad;	459	c->curpad = PL_curpad;
		460	c->comppad = PL_comppad;
		461	c->compcv = PL_compcv;
423	c->stack_base = PL_stack_base;	462	c->stack_base = PL_stack_base;
424	c->stack_max = PL_stack_max;	463	c->stack_max = PL_stack_max;
425	c->tmps_stack = PL_tmps_stack;	464	c->tmps_stack = PL_tmps_stack;
426	c->tmps_floor = PL_tmps_floor;	465	c->tmps_floor = PL_tmps_floor;
427	c->tmps_ix = PL_tmps_ix;	466	c->tmps_ix = PL_tmps_ix;
…		…
436	c->savestack_ix = PL_savestack_ix;	475	c->savestack_ix = PL_savestack_ix;
437	c->savestack_max = PL_savestack_max;	476	c->savestack_max = PL_savestack_max;
438	c->retstack = PL_retstack;	477	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;	478	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;	479	c->retstack_max = PL_retstack_max;
		480	c->curpm = PL_curpm;
441	c->curcop = PL_curcop;	481	c->curcop = PL_curcop;
442	c->top_env = PL_top_env;	482	c->top_env = PL_top_env;
443	}	483	}
444		484
445	/*	485	/*
446	* allocate various perl stacks. This is an exact copy	486	* allocate various perl stacks. This is an exact copy
447	* of perl.c:init_stacks, except that it uses less memory	487	* of perl.c:init_stacks, except that it uses less memory
448	* on the assumption that coroutines do not usually need	488	* on the (sometimes correct) assumption that coroutines do
449	* a lot of stackspace.	489	* not usually need a lot of stackspace.
450	*/	490	*/
451	STATIC void	491	STATIC void
452	coro_init_stacks (pTHX)	492	coro_init_stacks (pTHX)
453	{	493	{
		494	LOCK;
		495
454	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	496	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455	PL_curstackinfo->si_type = PERLSI_MAIN;	497	PL_curstackinfo->si_type = PERLSI_MAIN;
456	PL_curstack = PL_curstackinfo->si_stack;	498	PL_curstack = PL_curstackinfo->si_stack;
457	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	499	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458		500
…		…
467		509
468	New(54,PL_markstack,16,I32);	510	New(54,PL_markstack,16,I32);
469	PL_markstack_ptr = PL_markstack;	511	PL_markstack_ptr = PL_markstack;
470	PL_markstack_max = PL_markstack + 16;	512	PL_markstack_max = PL_markstack + 16;
471		513
		514	#ifdef SET_MARK_OFFSET
472	SET_MARK_OFFSET;	515	SET_MARK_OFFSET;
		516	#endif
473		517
474	New(54,PL_scopestack,16,I32);	518	New(54,PL_scopestack,16,I32);
475	PL_scopestack_ix = 0;	519	PL_scopestack_ix = 0;
476	PL_scopestack_max = 16;	520	PL_scopestack_max = 16;
477		521
…		…
480	PL_savestack_max = 96;	524	PL_savestack_max = 96;
481		525
482	New(54,PL_retstack,8,OP*);	526	New(54,PL_retstack,8,OP*);
483	PL_retstack_ix = 0;	527	PL_retstack_ix = 0;
484	PL_retstack_max = 8;	528	PL_retstack_max = 8;
		529
		530	UNLOCK;
485	}	531	}
486		532
487	/*	533	/*
488	* destroy the stacks, the callchain etc...	534	* destroy the stacks, the callchain etc...
489	* still there is a memleak of 128 bytes...
490	*/	535	*/
491	STATIC void	536	STATIC void
492	destroy_stacks(pTHX)	537	destroy_stacks(pTHX)
493	{	538	{
494	if (!IN_DESTRUCT)	539	if (!IN_DESTRUCT)
495	{	540	{
496	/* is this ugly, I ask? */	541	/* is this ugly, I ask? */
497	while (PL_scopestack_ix)	542	LEAVE_SCOPE (0);
498	LEAVE;
499		543
500	/* sure it is, but more important: is it correct?? :/ */	544	/* 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;	545	FREETMPS;
		546
		547	/POPSTACK_TO (PL_mainstack);//D//use/
503	}	548	}
504		549
505	while (PL_curstackinfo->si_next)	550	while (PL_curstackinfo->si_next)
506	PL_curstackinfo = PL_curstackinfo->si_next;	551	PL_curstackinfo = PL_curstackinfo->si_next;
507		552
508	while (PL_curstackinfo)	553	while (PL_curstackinfo)
509	{	554	{
510	PERL_SI *p = PL_curstackinfo->si_prev;	555	PERL_SI *p = PL_curstackinfo->si_prev;
511		556
512	{	557	{ /D//remove/
513	dSP;	558	dSP;
514	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	559	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515	PUTBACK; /* possibly superfluous */	560	PUTBACK; /* possibly superfluous */
516	}	561	}
517		562
518	if (!IN_DESTRUCT)	563	if (!IN_DESTRUCT)
519	{	564	{
520	dounwind(-1);	565	dounwind (-1);/D//remove/
521	SvREFCNT_dec(PL_curstackinfo->si_stack);	566	SvREFCNT_dec (PL_curstackinfo->si_stack);
522	}	567	}
523		568
524	Safefree(PL_curstackinfo->si_cxstack);	569	Safefree (PL_curstackinfo->si_cxstack);
525	Safefree(PL_curstackinfo);	570	Safefree (PL_curstackinfo);
526	PL_curstackinfo = p;	571	PL_curstackinfo = p;
527	}	572	}
528		573
529	Safefree(PL_tmps_stack);	574	Safefree (PL_tmps_stack);
530	Safefree(PL_markstack);	575	Safefree (PL_markstack);
531	Safefree(PL_scopestack);	576	Safefree (PL_scopestack);
532	Safefree(PL_savestack);	577	Safefree (PL_savestack);
533	Safefree(PL_retstack);	578	Safefree (PL_retstack);
534	}	579	}
535		580
536	static void	581	static void
537	allocate_stack (Coro__State ctx, int alloc)	582	allocate_stack (Coro__State ctx, int alloc)
538	{	583	{
…		…
541	New (0, stack, 1, coro_stack);	586	New (0, stack, 1, coro_stack);
542		587
543	stack->refcnt = 1;	588	stack->refcnt = 1;
544	stack->usecnt = 1;	589	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;	590	stack->gencnt = ctx->gencnt = 0;
		591
546	if (alloc)	592	if (alloc)
547	{	593	{
548	#ifdef HAVE_MMAP	594	#if HAVE_MMAP
549	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	595	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);	596	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
551	if (stack->sptr == (void *)-1)	597	if (stack->sptr == (void *)-1)
552	#endif	598	#endif
553	{	599	{
554	/FIXME//D//* reasonable stack size! */	600	/FIXME//D//* reasonable stack size! */
555	stack->ssize = -4096 * sizeof (long);	601	stack->ssize = - (STACKSIZE * sizeof (long));
556	New (0, stack->sptr, 4096, long);	602	New (0, stack->sptr, STACKSIZE, long);
557	}	603	}
558	}	604	}
559	else	605	else
560	stack->sptr = 0;	606	stack->sptr = 0;
561		607
…		…
575	{	621	{
576	#ifdef HAVE_MMAP	622	#ifdef HAVE_MMAP
577	if (stack->ssize > 0 && stack->sptr)	623	if (stack->ssize > 0 && stack->sptr)
578	munmap (stack->sptr, stack->ssize);	624	munmap (stack->sptr, stack->ssize);
579	else	625	else
580	#else	626	#endif
581	Safefree (stack->sptr);	627	Safefree (stack->sptr);
582	#endif	628
583	Safefree (stack);	629	Safefree (stack);
584	}	630	}
585	else if (ctx->gencnt == stack->gencnt)	631	else if (ctx->gencnt == stack->gencnt)
586	--stack->usecnt;	632	--stack->usecnt;
587	}	633	}
…		…
591	setup_coro (void *arg)	637	setup_coro (void *arg)
592	{	638	{
593	/*	639	/*
594	* emulate part of the perl startup here.	640	* emulate part of the perl startup here.
595	*/	641	*/
		642	dTHX;
596	dSP;	643	dSP;
597	Coro__State ctx = (Coro__State)arg;	644	Coro__State ctx = (Coro__State)arg;
598	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	645	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
599		646
600	coro_init_stacks (aTHX);	647	coro_init_stacks (aTHX);
601	/PL_curcop = 0;/	648	/PL_curcop = 0;/
602	/PL_in_eval = PL_in_eval;/ /* inherit */	649	/PL_in_eval = PL_in_eval;/ /* inherit */
603	SvREFCNT_dec (GvAV (PL_defgv));	650	SvREFCNT_dec (GvAV (PL_defgv));
604	GvAV (PL_defgv) = ctx->args;	651	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605		652
606	SPAGAIN;	653	SPAGAIN;
607		654
608	if (ctx->stack)	655	if (ctx->stack)
609	{	656	{
…		…
636	* that doesn't matter, though, since it is only	683	* that doesn't matter, though, since it is only
637	* pp_nextstate and we never return...	684	* pp_nextstate and we never return...
638	* ah yes, and I don't care anyways ;)	685	* ah yes, and I don't care anyways ;)
639	*/	686	*/
640	PUTBACK;	687	PUTBACK;
641	PL_op = pp_entersub();	688	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642	SPAGAIN;	689	SPAGAIN;
643		690
644	ENTER; /* necessary e.g. for dounwind */	691	ENTER; /* necessary e.g. for dounwind */
645	}	692	}
646	}	693	}
…		…
649	continue_coro (void *arg)	696	continue_coro (void *arg)
650	{	697	{
651	/*	698	/*
652	* this is a _very_ stripped down perl interpreter ;)	699	* this is a _very_ stripped down perl interpreter ;)
653	*/	700	*/
		701	dTHX;
654	Coro__State ctx = (Coro__State)arg;	702	Coro__State ctx = (Coro__State)arg;
655	JMPENV coro_start_env;	703	JMPENV coro_start_env;
656		704
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;	705	PL_top_env = &ctx->start_env;
662		706
663	ctx->cursp = 0;	707	ctx->cursp = 0;
664	PL_op = PL_op->op_next;	708	PL_op = PL_op->op_next;
665	CALLRUNOPS(aTHX);	709	CALLRUNOPS(aTHX);
666		710
667	abort ();	711	abort ();
668	}	712	}
669		713
670	STATIC void	714	STATIC void
671	transfer(pTHX_ struct coro prev, struct coro next, int flags)	715	transfer (pTHX_ struct coro prev, struct coro next, int flags)
672	{	716	{
673	dSTACKLEVEL;	717	dSTACKLEVEL;
674	static struct coro *xnext;
675		718
676	if (prev != next)	719	if (prev != next)
677	{	720	{
678	xnext = next;
679
680	if (next->mainstack)	721	if (next->mainstack)
681	{	722	{
		723	LOCK;
682	SAVE (prev, flags);	724	SAVE (prev, flags);
683	LOAD (next);	725	LOAD (next);
		726	UNLOCK;
684		727
685	/* mark this state as in-use */	728	/* mark this state as in-use */
686	next->mainstack = 0;	729	next->mainstack = 0;
687	next->tmps_ix = -2;	730	next->tmps_ix = -2;
688		731
…		…
707	continue_coro, (void *)next,	750	continue_coro, (void *)next,
708	next->stack->sptr, labs (next->stack->ssize));	751	next->stack->sptr, labs (next->stack->ssize));
709	}	752	}
710		753
711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		755	prev->cursp = stacklevel;
712	/* don't add any code here */	756	/* don't add any code here */
713	}	757	}
714		758	else
		759	next->cursp = stacklevel;
715	}	760	}
716	else if (next->tmps_ix == -2)	761	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	762	croak ("tried to transfer to running coroutine");
718	else	763	else
719	{	764	{
		765	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	766	SAVE (prev, -1); /* first get rid of the old state */
		767	UNLOCK;
721		768
722	if (flags & TRANSFER_SAVE_CCTXT)	769	if (flags & TRANSFER_SAVE_CCTXT)
723	{	770	{
724	if (!prev->stack)	771	if (!prev->stack)
725	allocate_stack (prev, 0);	772	allocate_stack (prev, 0);
726		773
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	774	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	775	{
		776	PL_top_env = &next->start_env;
		777
729	setup_coro (next);	778	setup_coro (next);
		779	next->cursp = stacklevel;
730		780
731	prev->stack->refcnt++;	781	prev->stack->refcnt++;
732	prev->stack->usecnt++;	782	prev->stack->usecnt++;
733	next->stack = prev->stack;	783	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	784	next->gencnt = prev->gencnt;
735	}	785	}
736	else	786	else
737	{	787	{
		788	assert (!next->stack);
738	allocate_stack (next, 1);	789	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	790	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	791	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	792	next->stack->sptr, labs (next->stack->ssize));
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	793	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		794	prev->cursp = stacklevel;
743	/* don't add any code here */	795	/* don't add any code here */
744	}	796	}
745	}	797	}
746	else	798	else
		799	{
747	setup_coro (next);	800	setup_coro (next);
		801	next->cursp = stacklevel;
		802	}
748	}	803	}
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	}	804	}
757	}
758		805
759	static struct coro *	806	LOCK;
760	sv_to_coro (SV arg, const char funcname, const char *varname)	807	if (coro_mortal)
761	{
762	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763	{	808	{
764	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	809	SvREFCNT_dec (coro_mortal);
765		810	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	}	811	}
771		812	UNLOCK;
		813	}
		814
		815	#define SV_CORO(sv,func) \
		816	do { \
		817	if (SvROK (sv)) \
		818	sv = SvRV (sv); \
		819	\
		820	if (SvTYPE (sv) == SVt_PVHV) \
		821	{ \
		822	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		823	\
		824	if (!he) \
		825	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		826	\
		827	(sv) = SvRV (HeVAL(he)); \
		828	} \
		829	\
772	/* must also be changed inside Coro::Cont::yield */	830	/* must also be changed inside Coro::Cont::yield */ \
773	if (SvROK(arg) && SvOBJECT(SvRV(arg))	831	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);	832	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778	/NORETURN/	833	\
779	}	834	} while(0)
		835
		836	#define SvSTATE(sv) (struct coro *)SvIV (sv)
780		837
781	static void	838	static void
782	api_transfer(pTHX_ SV prev, SV next, int flags)	839	api_transfer(pTHX_ SV prev, SV next, int flags)
783	{	840	{
784	transfer(aTHX_	841	SV_CORO (prev, "Coro::transfer");
785	sv_to_coro (prev, "Coro::transfer", "prev"),	842	SV_CORO (next, "Coro::transfer");
786	sv_to_coro (next, "Coro::transfer", "next"),	843
787	flags);	844	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788	}	845	}
789		846
790	/ Coro ******************************************************************/	847	/ Coro ******************************************************************/
791		848
792	#define PRIO_MAX 3	849	#define PRIO_MAX 3
…		…
800	static GV coro_current, coro_idle;	857	static GV coro_current, coro_idle;
801	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	858	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802	static int coro_nready;	859	static int coro_nready;
803		860
804	static void	861	static void
805	coro_enq (SV *sv)	862	coro_enq (pTHX_ SV *sv)
806	{	863	{
807	if (SvROK (sv))	864	if (SvTYPE (sv) == SVt_PVHV)
808	{	865	{
809	SV *hv = SvRV (sv);
810	if (SvTYPE (hv) == SVt_PVHV)
811	{
812	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	866	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
813	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	867	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814		868
815	prio = prio > PRIO_MAX ? PRIO_MAX	869	prio = prio > PRIO_MAX ? PRIO_MAX
816	: prio < PRIO_MIN ? PRIO_MIN	870	: prio < PRIO_MIN ? PRIO_MIN
817	: prio;	871	: prio;
818		872
819	av_push (coro_ready [prio - PRIO_MIN], sv);	873	av_push (coro_ready [prio - PRIO_MIN], sv);
820	coro_nready++;	874	coro_nready++;
821		875
822	return;	876	return;
823	}
824	}	877	}
825		878
826	croak ("Coro::ready tried to enqueue something that is not a coroutine");	879	croak ("Coro::ready tried to enqueue something that is not a coroutine");
827	}	880	}
828		881
829	static SV *	882	static SV *
830	coro_deq (int min_prio)	883	coro_deq (pTHX_ int min_prio)
831	{	884	{
832	int prio = PRIO_MAX - PRIO_MIN;	885	int prio = PRIO_MAX - PRIO_MIN;
833		886
834	min_prio -= PRIO_MIN;	887	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	888	if (min_prio < 0)
…		…
846	}	899	}
847		900
848	static void	901	static void
849	api_ready (SV *coro)	902	api_ready (SV *coro)
850	{	903	{
		904	dTHX;
		905
		906	if (SvROK (coro))
		907	coro = SvRV (coro);
		908
		909	LOCK;
851	coro_enq (SvREFCNT_inc (coro));	910	coro_enq (aTHX_ SvREFCNT_inc (coro));
		911	UNLOCK;
852	}	912	}
853		913
854	static void	914	static void
855	api_schedule (int cede)	915	api_schedule (void)
856	{	916	{
		917	dTHX;
		918
857	SV prev, next;	919	SV prev, next;
858		920
		921	LOCK;
		922
859	prev = GvSV (coro_current);	923	prev = SvRV (GvSV (coro_current));
860
861	if (cede)
862	coro_enq (SvREFCNT_inc (prev));
863
864	next = coro_deq (PRIO_MIN);	924	next = coro_deq (aTHX_ PRIO_MIN);
865		925
866	if (!next)	926	if (!next)
867	next = SvREFCNT_inc (GvSV (coro_idle));	927	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868		928
869	GvSV (coro_current) = SvREFCNT_inc (next);	929	/* free this only after the transfer */
870	transfer (aTHX_	930	coro_mortal = prev;
871	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	931	SV_CORO (prev, "Coro::schedule");
872	sv_to_coro (next, "Coro::schedule", "next coroutine"),	932
		933	SvRV (GvSV (coro_current)) = next;
		934
		935	SV_CORO (next, "Coro::schedule");
		936
		937	UNLOCK;
		938
		939	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	940	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
874	SvREFCNT_dec (next);	941	}
875	SvREFCNT_dec (prev);	942
		943	static void
		944	api_cede (void)
		945	{
		946	dTHX;
		947
		948	LOCK;
		949	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		950	UNLOCK;
		951
		952	api_schedule ();
876	}	953	}
877		954
878	MODULE = Coro::State PACKAGE = Coro::State	955	MODULE = Coro::State PACKAGE = Coro::State
879		956
880	PROTOTYPES: ENABLE	957	PROTOTYPES: ENABLE
881		958
882	BOOT:	959	BOOT:
883	{ /* {} necessary for stoopid perl-5.6.x */	960	{ /* {} necessary for stoopid perl-5.6.x */
		961	#ifdef USE_ITHREADS
		962	MUTEX_INIT (&coro_mutex);
		963	#endif
		964
884	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	965	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	966	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	967	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887		968
888	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	969	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	970	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	971	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	972	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893	if (!padlist_cache)
894	padlist_cache = newHV ();
895		973
896	main_mainstack = PL_mainstack;	974	main_mainstack = PL_mainstack;
897		975
898	coroapi.ver = CORO_API_VERSION;	976	coroapi.ver = CORO_API_VERSION;
899	coroapi.transfer = api_transfer;	977	coroapi.transfer = api_transfer;
…		…
907	Coro__State coro;	985	Coro__State coro;
908		986
909	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	987	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
910	croak ("Coro::State::_newprocess expects an arrayref");	988	croak ("Coro::State::_newprocess expects an arrayref");
911		989
912	New (0, coro, 1, struct coro);	990	Newz (0, coro, 1, struct coro);
913		991
914	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	992	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915	coro->mainstack = 0; /* actual work is done inside transfer */	993	/coro->mainstack = 0; //actual work is done inside transfer /
916	coro->stack = 0;	994	/coro->stack = 0;/
		995
		996	/* same as JMPENV_BOOTSTRAP */
		997	/* we might be able to recycle start_env, but safe is safe */
		998	/Zero(&coro->start_env, 1, JMPENV);/
		999	coro->start_env.je_ret = -1;
		1000	coro->start_env.je_mustcatch = TRUE;
917		1001
918	RETVAL = coro;	1002	RETVAL = coro;
919	OUTPUT:	1003	OUTPUT:
920	RETVAL	1004	RETVAL
921		1005
922	void	1006	void
923	transfer(prev, next, flags)	1007	transfer(prev, next, flags)
924	Coro::State_or_hashref prev	1008	SV *prev
925	Coro::State_or_hashref next	1009	SV *next
926	int flags	1010	int flags
927	PROTOTYPE: @	1011	PROTOTYPE: @
928	CODE:	1012	CODE:
929	PUTBACK;	1013	PUTBACK;
		1014	SV_CORO (next, "Coro::transfer");
		1015	SV_CORO (prev, "Coro::transfer");
930	transfer (aTHX_ prev, next, flags);	1016	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931	SPAGAIN;	1017	SPAGAIN;
932		1018
933	void	1019	void
934	DESTROY(coro)	1020	DESTROY(coro)
935	Coro::State coro	1021	Coro::State coro
…		…
938	if (coro->mainstack && coro->mainstack != main_mainstack)	1024	if (coro->mainstack && coro->mainstack != main_mainstack)
939	{	1025	{
940	struct coro temp;	1026	struct coro temp;
941		1027
942	PUTBACK;	1028	PUTBACK;
943	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1029	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944	LOAD(aTHX_ coro);	1030	LOAD (aTHX_ coro);
945	SPAGAIN;	1031	SPAGAIN;
946		1032
947	destroy_stacks (aTHX);	1033	destroy_stacks (aTHX);
948		1034
949	LOAD((&temp)); /* this will get rid of defsv etc.. */	1035	LOAD ((&temp)); /* this will get rid of defsv etc.. */
950	SPAGAIN;	1036	SPAGAIN;
951		1037
952	coro->mainstack = 0;	1038	coro->mainstack = 0;
953	}	1039	}
954		1040
955	deallocate_stack (coro);	1041	deallocate_stack (coro);
956		1042	SvREFCNT_dec (coro->args);
957	Safefree (coro);	1043	Safefree (coro);
958
959	void
960	flush()
961	CODE:
962	#ifdef MAY_FLUSH
963	flush_padlist_cache ();
964	#endif
965		1044
966	void	1045	void
967	_exit(code)	1046	_exit(code)
968	int code	1047	int code
969	PROTOTYPE: $	1048	PROTOTYPE: $
970	CODE:	1049	CODE:
971	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
972	_exit (code);	1050	_exit (code);
973	#else
974	signal (SIGTERM, SIG_DFL);
975	raise (SIGTERM);
976	exit (code);
977	#endif
978		1051
979	MODULE = Coro::State PACKAGE = Coro::Cont	1052	MODULE = Coro::State PACKAGE = Coro::Cont
980		1053
981	# this is slightly dirty (should expose a c-level api)	1054	# this is slightly dirty (should expose a c-level api)
982		1055
983	void	1056	void
984	yield(...)	1057	yield(...)
985	PROTOTYPE: @	1058	PROTOTYPE: @
986	CODE:	1059	CODE:
987	static SV *returnstk;	1060	SV *yieldstack;
988	SV *sv;	1061	SV *sv;
989	AV *defav = GvAV (PL_defgv);	1062	AV *defav = GvAV (PL_defgv);
990	struct coro prev, next;	1063	struct coro prev, next;
991		1064
992	if (!returnstk)	1065	yieldstack = *hv_fetch (
993	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1066	(HV *)SvRV (GvSV (coro_current)),
		1067	"yieldstack", sizeof ("yieldstack") - 1,
		1068	0
		1069	);
994		1070
995	/* set up @_ -- ugly */	1071	/* set up @_ -- ugly */
996	av_clear (defav);	1072	av_clear (defav);
997	av_fill (defav, items - 1);	1073	av_fill (defav, items - 1);
998	while (items--)	1074	while (items--)
999	av_store (defav, items, SvREFCNT_inc (ST(items)));	1075	av_store (defav, items, SvREFCNT_inc (ST(items)));
1000		1076
1001	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1002	sv = av_pop ((AV *)SvRV (returnstk));	1077	sv = av_pop ((AV *)SvRV (yieldstack));
1003	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1078	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)));	1079	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
1005	SvREFCNT_dec (sv);	1080	SvREFCNT_dec (sv);
1006		1081
1007	transfer(aTHX_ prev, next, 0);	1082	transfer (aTHX_ prev, next, 0);
1008		1083
1009	MODULE = Coro::State PACKAGE = Coro	1084	MODULE = Coro::State PACKAGE = Coro
1010		1085
1011	# this is slightly dirty (should expose a c-level api)	1086	# this is slightly dirty (should expose a c-level api)
1012		1087
…		…
1030		1105
1031	{	1106	{
1032	SV *sv = perl_get_sv("Coro::API", 1);	1107	SV *sv = perl_get_sv("Coro::API", 1);
1033		1108
1034	coroapi.schedule = api_schedule;	1109	coroapi.schedule = api_schedule;
		1110	coroapi.cede = api_cede;
1035	coroapi.ready = api_ready;	1111	coroapi.ready = api_ready;
1036	coroapi.nready = &coro_nready;	1112	coroapi.nready = &coro_nready;
1037	coroapi.current = coro_current;	1113	coroapi.current = coro_current;
1038		1114
1039	GCoroAPI = &coroapi;	1115	GCoroAPI = &coroapi;
1040	sv_setiv(sv, (IV)&coroapi);	1116	sv_setiv(sv, (IV)&coroapi);
1041	SvREADONLY_on(sv);	1117	SvREADONLY_on(sv);
1042	}	1118	}
1043	}	1119	}
		1120
		1121	#if !PERL_MICRO
1044		1122
1045	void	1123	void
1046	ready(self)	1124	ready(self)
1047	SV * self	1125	SV * self
1048	PROTOTYPE: $	1126	PROTOTYPE: $
1049	CODE:	1127	CODE:
1050	api_ready (self);	1128	api_ready (self);
		1129
		1130	#endif
1051		1131
1052	int	1132	int
1053	nready(...)	1133	nready(...)
1054	PROTOTYPE:	1134	PROTOTYPE:
1055	CODE:	1135	CODE:
…		…
1058	RETVAL	1138	RETVAL
1059		1139
1060	void	1140	void
1061	schedule(...)	1141	schedule(...)
1062	PROTOTYPE:	1142	PROTOTYPE:
1063	ALIAS:
1064	cede = 1
1065	CODE:	1143	CODE:
1066	api_schedule (ix);	1144	api_schedule ();
1067		1145
		1146	void
		1147	cede(...)
		1148	PROTOTYPE:
		1149	CODE:
		1150	api_cede ();
		1151
		1152	# and these are hacks
		1153	SV *
		1154	_aio_get_state ()
		1155	CODE:
		1156	{
		1157	struct {
		1158	int errorno;
		1159	int laststype;
		1160	int laststatval;
		1161	Stat_t statcache;
		1162	} data;
		1163
		1164	data.errorno = errno;
		1165	data.laststype = PL_laststype;
		1166	data.laststatval = PL_laststatval;
		1167	data.statcache = PL_statcache;
		1168
		1169	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1170	}
		1171	OUTPUT:
		1172	RETVAL
		1173
		1174	void
		1175	_aio_set_state (char *data_)
		1176	PROTOTYPE: $
		1177	CODE:
		1178	{
		1179	struct {
		1180	int errorno;
		1181	int laststype;
		1182	int laststatval;
		1183	Stat_t statcache;
		1184	} data = (void )data_;
		1185
		1186	errno = data->errorno;
		1187	PL_laststype = data->laststype;
		1188	PL_laststatval = data->laststatval;
		1189	PL_statcache = data->statcache;
		1190	}

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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 1.70 by root, Mon Dec 26 19:26:52 2005 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.35 by root, Mon Sep 24 01:36:20 2001 UTC vs.
Revision 1.70 by root, Mon Dec 26 19:26:52 2005 UTC