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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.39 by root, Sun Nov 25 20:04:05 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>
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
57	/* optionally saved, might be zero */	98	/* optionally saved, might be zero */
58	AV *defav;	99	AV *defav;
59	SV *defsv;	100	SV *defsv;
60	SV *errsv;	101	SV *errsv;
61	/* TODO: PL_pmop might be nice && effortless to save. */
62		102
63	/* saved global state not related to stacks */	103	/* saved global state not related to stacks */
64	U8 dowarn;	104	U8 dowarn;
65	I32 in_eval;	105	I32 in_eval;
66		106
…		…
69	AV *curstack;	109	AV *curstack;
70	AV *mainstack;	110	AV *mainstack;
71	SV **stack_sp;	111	SV **stack_sp;
72	OP *op;	112	OP *op;
73	SV **curpad;	113	SV **curpad;
		114	AV *comppad;
		115	CV *compcv;
74	SV **stack_base;	116	SV **stack_base;
75	SV **stack_max;	117	SV **stack_max;
76	SV **tmps_stack;	118	SV **tmps_stack;
77	I32 tmps_floor;	119	I32 tmps_floor;
78	I32 tmps_ix;	120	I32 tmps_ix;
…		…
87	I32 savestack_ix;	129	I32 savestack_ix;
88	I32 savestack_max;	130	I32 savestack_max;
89	OP **retstack;	131	OP **retstack;
90	I32 retstack_ix;	132	I32 retstack_ix;
91	I32 retstack_max;	133	I32 retstack_max;
		134	PMOP *curpm;
92	COP *curcop;	135	COP *curcop;
93	JMPENV *top_env;	136	JMPENV *top_env;
94		137
95	/* data associated with this coroutine (initial args) */	138	/* data associated with this coroutine (initial args) */
96	AV *args;	139	AV *args;
97	};	140	};
98		141
99	typedef struct coro *Coro__State;	142	typedef struct coro *Coro__State;
100	typedef struct coro *Coro__State_or_hashref;	143	typedef struct coro *Coro__State_or_hashref;
101		144
102	static AV main_mainstack; / used to differentiate between $main and others */
103	static HV *coro_state_stash;
104	static SV *ucoro_state_sv;
105	static U32 ucoro_state_hash;
106	static HV *padlist_cache;
107	static SV coro_mortal; / will be freed after next transfer */
108
109	/* mostly copied from op.c:cv_clone2 */	145	/* mostly copied from op.c:cv_clone2 */
110	STATIC AV *	146	STATIC AV *
111	clone_padlist (AV *protopadlist)	147	clone_padlist (pTHX_ AV *protopadlist)
112	{	148	{
113	AV *av;	149	AV *av;
114	I32 ix;	150	I32 ix;
115	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	151	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
116	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	152	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
140	AvFLAGS (av) = AVf_REIFY;	176	AvFLAGS (av) = AVf_REIFY;
141		177
142	for (ix = fpad; ix > 0; ix--)	178	for (ix = fpad; ix > 0; ix--)
143	{	179	{
144	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	180	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		181
145	if (namesv && namesv != &PL_sv_undef)	182	if (namesv && namesv != &PL_sv_undef)
146	{	183	{
147	char name = SvPVX (namesv); / XXX */	184	char name = SvPVX (namesv); / XXX */
		185
148	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	186	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
149	{ /* lexical from outside? */	187	{ /* lexical from outside? */
150	npad[ix] = SvREFCNT_inc (ppad[ix]);	188	npad[ix] = SvREFCNT_inc (ppad[ix]);
151	}	189	}
152	else	190	else
…		…
158	sv = (SV *) newAV ();	196	sv = (SV *) newAV ();
159	else if (*name == '%')	197	else if (*name == '%')
160	sv = (SV *) newHV ();	198	sv = (SV *) newHV ();
161	else	199	else
162	sv = NEWSV (0, 0);	200	sv = NEWSV (0, 0);
		201
		202	#ifdef SvPADBUSY
163	if (!SvPADBUSY (sv))	203	if (!SvPADBUSY (sv))
		204	#endif
164	SvPADMY_on (sv);	205	SvPADMY_on (sv);
		206
165	npad[ix] = sv;	207	npad[ix] = sv;
166	}	208	}
167	}	209	}
168	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	210	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
169	{	211	{
…		…
198	#endif	240	#endif
199		241
200	return newpadlist;	242	return newpadlist;
201	}	243	}
202		244
203	#ifdef MAY_FLUSH
204	STATIC void	245	STATIC void
205	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
206	{	247	{
207	/* may be during global destruction */	248	/* may be during global destruction */
208	if (SvREFCNT(padlist))	249	if (SvREFCNT (padlist))
209	{	250	{
210	I32 i = AvFILLp(padlist);	251	I32 i = AvFILLp (padlist);
211	while (i >= 0)	252	while (i >= 0)
212	{	253	{
213	SV **svp = av_fetch(padlist, i--, FALSE);	254	SV **svp = av_fetch (padlist, i--, FALSE);
214	SV sv = svp ? svp : Nullsv;
215	if (sv)	255	if (svp)
		256	{
		257	SV *sv;
		258	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
216	SvREFCNT_dec(sv);	259	SvREFCNT_dec (sv);
		260
		261	SvREFCNT_dec (*svp);
		262	}
217	}	263	}
218		264
219	SvREFCNT_dec((SV*)padlist);	265	SvREFCNT_dec ((SV*)padlist);
220	}	266	}
221	}	267	}
222	#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};
223		285
224	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
225	STATIC void	287	STATIC void
226	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
227	{	289	{
228	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	290	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
229		291
230	if (he && AvFILLp ((AV )he) >= 0)	292	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
231	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	293	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
232	else	294	else
233	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	295	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
234	}	296	}
235		297
236	STATIC void	298	STATIC void
237	put_padlist (CV *cv)	299	put_padlist (pTHX_ CV *cv)
238	{	300	{
239	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	301	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
240		302
241	if (SvTYPE (*he) != SVt_PVAV)	303	if (!mg)
242	{	304	{
243	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;
244	he = (SV )newAV ();	308	mg->mg_obj = (SV *)newAV ();
245	}	309	}
246		310
247	av_push ((AV )he, (SV *)CvPADLIST (cv));	311	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
248	}	312	}
249
250	#ifdef MAY_FLUSH
251	STATIC void
252	flush_padlist_cache ()
253	{
254	HV *hv = padlist_cache;
255	padlist_cache = newHV ();
256
257	if (hv_iterinit (hv))
258	{
259	HE *he;
260	AV *padlist;
261
262	while (!!(he = hv_iternext (hv)))
263	{
264	AV av = (AV )HeVAL(he);
265
266	/* casting is fun. */
267	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
268	free_padlist (padlist);
269	}
270	}
271
272	SvREFCNT_dec (hv);
273	}
274	#endif
275		313
276	#define SB do {	314	#define SB do {
277	#define SE } while (0)	315	#define SE } while (0)
278		316
279	#define LOAD(state) load_state(aTHX_ (state));	317	#define LOAD(state) load_state(aTHX_ (state));
280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	318	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281		319
282	#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
283		321
284	static void	322	static void
285	load_state(pTHX_ Coro__State c)	323	load_state(pTHX_ Coro__State c)
286	{	324	{
287	PL_dowarn = c->dowarn;	325	PL_dowarn = c->dowarn;
…		…
291	PL_curstack = c->curstack;	329	PL_curstack = c->curstack;
292	PL_mainstack = c->mainstack;	330	PL_mainstack = c->mainstack;
293	PL_stack_sp = c->stack_sp;	331	PL_stack_sp = c->stack_sp;
294	PL_op = c->op;	332	PL_op = c->op;
295	PL_curpad = c->curpad;	333	PL_curpad = c->curpad;
		334	PL_comppad = c->comppad;
		335	PL_compcv = c->compcv;
296	PL_stack_base = c->stack_base;	336	PL_stack_base = c->stack_base;
297	PL_stack_max = c->stack_max;	337	PL_stack_max = c->stack_max;
298	PL_tmps_stack = c->tmps_stack;	338	PL_tmps_stack = c->tmps_stack;
299	PL_tmps_floor = c->tmps_floor;	339	PL_tmps_floor = c->tmps_floor;
300	PL_tmps_ix = c->tmps_ix;	340	PL_tmps_ix = c->tmps_ix;
…		…
309	PL_savestack_ix = c->savestack_ix;	349	PL_savestack_ix = c->savestack_ix;
310	PL_savestack_max = c->savestack_max;	350	PL_savestack_max = c->savestack_max;
311	PL_retstack = c->retstack;	351	PL_retstack = c->retstack;
312	PL_retstack_ix = c->retstack_ix;	352	PL_retstack_ix = c->retstack_ix;
313	PL_retstack_max = c->retstack_max;	353	PL_retstack_max = c->retstack_max;
		354	PL_curpm = c->curpm;
314	PL_curcop = c->curcop;	355	PL_curcop = c->curcop;
315	PL_top_env = c->top_env;	356	PL_top_env = c->top_env;
316		357
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	358	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	359	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
327	{	368	{
328	AV padlist = (AV )POPs;	369	AV padlist = (AV )POPs;
329		370
330	if (padlist)	371	if (padlist)
331	{	372	{
332	put_padlist (cv); /* mark this padlist as available */	373	put_padlist (aTHX_ cv); /* mark this padlist as available */
333	CvPADLIST(cv) = padlist;	374	CvPADLIST(cv) = padlist;
334	#ifdef USE_THREADS
335	/CvOWNER(cv) = (struct perl_thread )POPs;*/
336	#endif
337	}	375	}
338		376
339	++CvDEPTH(cv);	377	++CvDEPTH(cv);
340	}	378	}
341		379
…		…
368	if (CxTYPE(cx) == CXt_SUB)	406	if (CxTYPE(cx) == CXt_SUB)
369	{	407	{
370	CV *cv = cx->blk_sub.cv;	408	CV *cv = cx->blk_sub.cv;
371	if (CvDEPTH(cv))	409	if (CvDEPTH(cv))
372	{	410	{
373	#ifdef USE_THREADS
374	/XPUSHs ((SV )CvOWNER(cv));*/
375	/CvOWNER(cv) = 0;/
376	/error must unlock this cv etc.. etc.../
377	#endif
378	EXTEND (SP, CvDEPTH(cv)*2);	411	EXTEND (SP, CvDEPTH(cv)*2);
379		412
380	while (--CvDEPTH(cv))	413	while (--CvDEPTH(cv))
381	{	414	{
382	/* this tells the restore code to increment CvDEPTH */	415	/* this tells the restore code to increment CvDEPTH */
…		…
385	}	418	}
386		419
387	PUSHs ((SV *)CvPADLIST(cv));	420	PUSHs ((SV *)CvPADLIST(cv));
388	PUSHs ((SV *)cv);	421	PUSHs ((SV *)cv);
389		422
390	get_padlist (cv); /* this is a monster */	423	get_padlist (aTHX_ cv); /* this is a monster */
391	}	424	}
392	}	425	}
		426	#ifdef CXt_FORMAT
393	else if (CxTYPE(cx) == CXt_FORMAT)	427	else if (CxTYPE(cx) == CXt_FORMAT)
394	{	428	{
395	/* 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? */
396	/* my bold guess is as a simple, plain sub... */	430	/* my bold guess is as a simple, plain sub... */
397	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");
398	}	432	}
		433	#endif
399	}	434	}
400		435
401	if (top_si->si_type == PERLSI_MAIN)	436	if (top_si->si_type == PERLSI_MAIN)
402	break;	437	break;
403		438
…		…
420	c->curstack = PL_curstack;	455	c->curstack = PL_curstack;
421	c->mainstack = PL_mainstack;	456	c->mainstack = PL_mainstack;
422	c->stack_sp = PL_stack_sp;	457	c->stack_sp = PL_stack_sp;
423	c->op = PL_op;	458	c->op = PL_op;
424	c->curpad = PL_curpad;	459	c->curpad = PL_curpad;
		460	c->comppad = PL_comppad;
		461	c->compcv = PL_compcv;
425	c->stack_base = PL_stack_base;	462	c->stack_base = PL_stack_base;
426	c->stack_max = PL_stack_max;	463	c->stack_max = PL_stack_max;
427	c->tmps_stack = PL_tmps_stack;	464	c->tmps_stack = PL_tmps_stack;
428	c->tmps_floor = PL_tmps_floor;	465	c->tmps_floor = PL_tmps_floor;
429	c->tmps_ix = PL_tmps_ix;	466	c->tmps_ix = PL_tmps_ix;
…		…
438	c->savestack_ix = PL_savestack_ix;	475	c->savestack_ix = PL_savestack_ix;
439	c->savestack_max = PL_savestack_max;	476	c->savestack_max = PL_savestack_max;
440	c->retstack = PL_retstack;	477	c->retstack = PL_retstack;
441	c->retstack_ix = PL_retstack_ix;	478	c->retstack_ix = PL_retstack_ix;
442	c->retstack_max = PL_retstack_max;	479	c->retstack_max = PL_retstack_max;
		480	c->curpm = PL_curpm;
443	c->curcop = PL_curcop;	481	c->curcop = PL_curcop;
444	c->top_env = PL_top_env;	482	c->top_env = PL_top_env;
445	}	483	}
446		484
447	/*	485	/*
448	* allocate various perl stacks. This is an exact copy	486	* allocate various perl stacks. This is an exact copy
449	* of perl.c:init_stacks, except that it uses less memory	487	* of perl.c:init_stacks, except that it uses less memory
450	* on the assumption that coroutines do not usually need	488	* on the (sometimes correct) assumption that coroutines do
451	* a lot of stackspace.	489	* not usually need a lot of stackspace.
452	*/	490	*/
453	STATIC void	491	STATIC void
454	coro_init_stacks (pTHX)	492	coro_init_stacks (pTHX)
455	{	493	{
		494	LOCK;
		495
456	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	496	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
457	PL_curstackinfo->si_type = PERLSI_MAIN;	497	PL_curstackinfo->si_type = PERLSI_MAIN;
458	PL_curstack = PL_curstackinfo->si_stack;	498	PL_curstack = PL_curstackinfo->si_stack;
459	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	499	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460		500
…		…
469		509
470	New(54,PL_markstack,16,I32);	510	New(54,PL_markstack,16,I32);
471	PL_markstack_ptr = PL_markstack;	511	PL_markstack_ptr = PL_markstack;
472	PL_markstack_max = PL_markstack + 16;	512	PL_markstack_max = PL_markstack + 16;
473		513
		514	#ifdef SET_MARK_OFFSET
474	SET_MARK_OFFSET;	515	SET_MARK_OFFSET;
		516	#endif
475		517
476	New(54,PL_scopestack,16,I32);	518	New(54,PL_scopestack,16,I32);
477	PL_scopestack_ix = 0;	519	PL_scopestack_ix = 0;
478	PL_scopestack_max = 16;	520	PL_scopestack_max = 16;
479		521
…		…
482	PL_savestack_max = 96;	524	PL_savestack_max = 96;
483		525
484	New(54,PL_retstack,8,OP*);	526	New(54,PL_retstack,8,OP*);
485	PL_retstack_ix = 0;	527	PL_retstack_ix = 0;
486	PL_retstack_max = 8;	528	PL_retstack_max = 8;
		529
		530	UNLOCK;
487	}	531	}
488		532
489	/*	533	/*
490	* destroy the stacks, the callchain etc...	534	* destroy the stacks, the callchain etc...
491	* still there is a memleak of 128 bytes...
492	*/	535	*/
493	STATIC void	536	STATIC void
494	destroy_stacks(pTHX)	537	destroy_stacks(pTHX)
495	{	538	{
496	if (!IN_DESTRUCT)	539	if (!IN_DESTRUCT)
497	{	540	{
498	/* is this ugly, I ask? */	541	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	542	LEAVE_SCOPE (0);
500	LEAVE;
501		543
502	/* sure it is, but more important: is it correct?? :/ */	544	/* sure it is, but more important: is it correct?? :/ */
503	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
504	FREETMPS;	545	FREETMPS;
		546
		547	/POPSTACK_TO (PL_mainstack);//D//use/
505	}	548	}
506		549
507	while (PL_curstackinfo->si_next)	550	while (PL_curstackinfo->si_next)
508	PL_curstackinfo = PL_curstackinfo->si_next;	551	PL_curstackinfo = PL_curstackinfo->si_next;
509		552
510	while (PL_curstackinfo)	553	while (PL_curstackinfo)
511	{	554	{
512	PERL_SI *p = PL_curstackinfo->si_prev;	555	PERL_SI *p = PL_curstackinfo->si_prev;
513		556
514	{	557	{ /D//remove/
515	dSP;	558	dSP;
516	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	559	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
517	PUTBACK; /* possibly superfluous */	560	PUTBACK; /* possibly superfluous */
518	}	561	}
519		562
520	if (!IN_DESTRUCT)	563	if (!IN_DESTRUCT)
521	{	564	{
522	dounwind(-1);	565	dounwind (-1);/D//remove/
523	SvREFCNT_dec(PL_curstackinfo->si_stack);	566	SvREFCNT_dec (PL_curstackinfo->si_stack);
524	}	567	}
525		568
526	Safefree(PL_curstackinfo->si_cxstack);	569	Safefree (PL_curstackinfo->si_cxstack);
527	Safefree(PL_curstackinfo);	570	Safefree (PL_curstackinfo);
528	PL_curstackinfo = p;	571	PL_curstackinfo = p;
529	}	572	}
530		573
531	Safefree(PL_tmps_stack);	574	Safefree (PL_tmps_stack);
532	Safefree(PL_markstack);	575	Safefree (PL_markstack);
533	Safefree(PL_scopestack);	576	Safefree (PL_scopestack);
534	Safefree(PL_savestack);	577	Safefree (PL_savestack);
535	Safefree(PL_retstack);	578	Safefree (PL_retstack);
536	}	579	}
537		580
538	static void	581	static void
539	allocate_stack (Coro__State ctx, int alloc)	582	allocate_stack (Coro__State ctx, int alloc)
540	{	583	{
…		…
543	New (0, stack, 1, coro_stack);	586	New (0, stack, 1, coro_stack);
544		587
545	stack->refcnt = 1;	588	stack->refcnt = 1;
546	stack->usecnt = 1;	589	stack->usecnt = 1;
547	stack->gencnt = ctx->gencnt = 0;	590	stack->gencnt = ctx->gencnt = 0;
		591
548	if (alloc)	592	if (alloc)
549	{	593	{
550	#if HAVE_MMAP	594	#if HAVE_MMAP
551	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 */
552	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	596	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
553	if (stack->sptr == (void *)-1)	597	if (stack->sptr == (void *)-1)
554	#endif	598	#endif
555	{	599	{
556	/FIXME//D//* reasonable stack size! */	600	/FIXME//D//* reasonable stack size! */
557	stack->ssize = -4096 * sizeof (long);	601	stack->ssize = - (STACKSIZE * sizeof (long));
558	New (0, stack->sptr, 4096, long);	602	New (0, stack->sptr, STACKSIZE, long);
559	}	603	}
560	}	604	}
561	else	605	else
562	stack->sptr = 0;	606	stack->sptr = 0;
563		607
…		…
577	{	621	{
578	#ifdef HAVE_MMAP	622	#ifdef HAVE_MMAP
579	if (stack->ssize > 0 && stack->sptr)	623	if (stack->ssize > 0 && stack->sptr)
580	munmap (stack->sptr, stack->ssize);	624	munmap (stack->sptr, stack->ssize);
581	else	625	else
582	#else	626	#endif
583	Safefree (stack->sptr);	627	Safefree (stack->sptr);
584	#endif	628
585	Safefree (stack);	629	Safefree (stack);
586	}	630	}
587	else if (ctx->gencnt == stack->gencnt)	631	else if (ctx->gencnt == stack->gencnt)
588	--stack->usecnt;	632	--stack->usecnt;
589	}	633	}
…		…
593	setup_coro (void *arg)	637	setup_coro (void *arg)
594	{	638	{
595	/*	639	/*
596	* emulate part of the perl startup here.	640	* emulate part of the perl startup here.
597	*/	641	*/
		642	dTHX;
598	dSP;	643	dSP;
599	Coro__State ctx = (Coro__State)arg;	644	Coro__State ctx = (Coro__State)arg;
600	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	645	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
601		646
602	coro_init_stacks (aTHX);	647	coro_init_stacks (aTHX);
603	/PL_curcop = 0;/	648	/PL_curcop = 0;/
604	/PL_in_eval = PL_in_eval;/ /* inherit */	649	/PL_in_eval = PL_in_eval;/ /* inherit */
605	SvREFCNT_dec (GvAV (PL_defgv));	650	SvREFCNT_dec (GvAV (PL_defgv));
606	GvAV (PL_defgv) = ctx->args;	651	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
607		652
608	SPAGAIN;	653	SPAGAIN;
609		654
610	if (ctx->stack)	655	if (ctx->stack)
611	{	656	{
…		…
638	* that doesn't matter, though, since it is only	683	* that doesn't matter, though, since it is only
639	* pp_nextstate and we never return...	684	* pp_nextstate and we never return...
640	* ah yes, and I don't care anyways ;)	685	* ah yes, and I don't care anyways ;)
641	*/	686	*/
642	PUTBACK;	687	PUTBACK;
643	PL_op = pp_entersub();	688	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
644	SPAGAIN;	689	SPAGAIN;
645		690
646	ENTER; /* necessary e.g. for dounwind */	691	ENTER; /* necessary e.g. for dounwind */
647	}	692	}
648	}	693	}
…		…
651	continue_coro (void *arg)	696	continue_coro (void *arg)
652	{	697	{
653	/*	698	/*
654	* this is a _very_ stripped down perl interpreter ;)	699	* this is a _very_ stripped down perl interpreter ;)
655	*/	700	*/
		701	dTHX;
656	Coro__State ctx = (Coro__State)arg;	702	Coro__State ctx = (Coro__State)arg;
657	JMPENV coro_start_env;	703	JMPENV coro_start_env;
658		704
659	/* same as JMPENV_BOOTSTRAP */
660	Zero(&coro_start_env, 1, JMPENV);
661	coro_start_env.je_ret = -1;
662	coro_start_env.je_mustcatch = TRUE;
663	PL_top_env = &coro_start_env;	705	PL_top_env = &ctx->start_env;
664		706
665	ctx->cursp = 0;	707	ctx->cursp = 0;
666	PL_op = PL_op->op_next;	708	PL_op = PL_op->op_next;
667	CALLRUNOPS(aTHX);	709	CALLRUNOPS(aTHX);
668		710
669	abort ();	711	abort ();
670	}	712	}
671		713
672	STATIC void	714	STATIC void
673	transfer(pTHX_ struct coro prev, struct coro next, int flags)	715	transfer (pTHX_ struct coro prev, struct coro next, int flags)
674	{	716	{
675	dSTACKLEVEL;	717	dSTACKLEVEL;
676	static struct coro *xnext;
677		718
678	if (prev != next)	719	if (prev != next)
679	{	720	{
680	xnext = next;
681
682	if (next->mainstack)	721	if (next->mainstack)
683	{	722	{
		723	LOCK;
684	SAVE (prev, flags);	724	SAVE (prev, flags);
685	LOAD (next);	725	LOAD (next);
		726	UNLOCK;
686		727
687	/* mark this state as in-use */	728	/* mark this state as in-use */
688	next->mainstack = 0;	729	next->mainstack = 0;
689	next->tmps_ix = -2;	730	next->tmps_ix = -2;
690		731
…		…
709	continue_coro, (void *)next,	750	continue_coro, (void *)next,
710	next->stack->sptr, labs (next->stack->ssize));	751	next->stack->sptr, labs (next->stack->ssize));
711	}	752	}
712		753
713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		755	prev->cursp = stacklevel;
714	/* don't add any code here */	756	/* don't add any code here */
715	}	757	}
716		758	else
		759	next->cursp = stacklevel;
717	}	760	}
718	else if (next->tmps_ix == -2)	761	else if (next->tmps_ix == -2)
719	croak ("tried to transfer to running coroutine");	762	croak ("tried to transfer to running coroutine");
720	else	763	else
721	{	764	{
		765	LOCK;
722	SAVE (prev, -1); /* first get rid of the old state */	766	SAVE (prev, -1); /* first get rid of the old state */
		767	UNLOCK;
723		768
724	if (flags & TRANSFER_SAVE_CCTXT)	769	if (flags & TRANSFER_SAVE_CCTXT)
725	{	770	{
726	if (!prev->stack)	771	if (!prev->stack)
727	allocate_stack (prev, 0);	772	allocate_stack (prev, 0);
728		773
729	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	774	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
730	{	775	{
		776	PL_top_env = &next->start_env;
		777
731	setup_coro (next);	778	setup_coro (next);
		779	next->cursp = stacklevel;
732		780
733	prev->stack->refcnt++;	781	prev->stack->refcnt++;
734	prev->stack->usecnt++;	782	prev->stack->usecnt++;
735	next->stack = prev->stack;	783	next->stack = prev->stack;
736	next->gencnt = prev->gencnt;	784	next->gencnt = prev->gencnt;
737	}	785	}
738	else	786	else
739	{	787	{
		788	assert (!next->stack);
740	allocate_stack (next, 1);	789	allocate_stack (next, 1);
741	coro_create (&(next->stack->cctx),	790	coro_create (&(next->stack->cctx),
742	setup_coro, (void *)next,	791	setup_coro, (void *)next,
743	next->stack->sptr, labs (next->stack->ssize));	792	next->stack->sptr, labs (next->stack->ssize));
744	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	793	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		794	prev->cursp = stacklevel;
745	/* don't add any code here */	795	/* don't add any code here */
746	}	796	}
747	}	797	}
748	else	798	else
		799	{
749	setup_coro (next);	800	setup_coro (next);
		801	next->cursp = stacklevel;
		802	}
750	}	803	}
751
752	/*
753	* xnext is now either prev or next, depending on wether
754	* we switched the c stack or not. that's why i use a global
755	* variable, that should become thread-specific at one point.
756	*/
757	xnext->cursp = stacklevel;
758	}	804	}
759		805
		806	LOCK;
760	if (coro_mortal)	807	if (coro_mortal)
761	{	808	{
762	SvREFCNT_dec (coro_mortal);	809	SvREFCNT_dec (coro_mortal);
763	coro_mortal = 0;	810	coro_mortal = 0;
764	}	811	}
		812	UNLOCK;
765	}	813	}
766		814
767	#define SV_CORO(sv,func) \	815	#define SV_CORO(sv,func) \
768	do { \	816	do { \
769	if (SvROK (sv)) \	817	if (SvROK (sv)) \
770	sv = SvRV (sv); \	818	sv = SvRV (sv); \
771	\	819	\
772	if (SvTYPE(sv) == SVt_PVHV) \	820	if (SvTYPE (sv) == SVt_PVHV) \
773	{ \	821	{ \
774	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	822	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
775	\	823	\
776	if (!he) \	824	if (!he) \
777	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	825	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
778	\	826	\
779	(sv) = SvRV (HeVAL(he)); \	827	(sv) = SvRV (HeVAL(he)); \
780	} \	828	} \
781	\	829	\
782	/* must also be changed inside Coro::Cont::yield */ \	830	/* must also be changed inside Coro::Cont::yield */ \
783	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	831	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
784	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	832	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
785	\	833	\
786	} while(0)	834	} while(0)
787		835
788	#define SvSTATE(sv) (struct coro *)SvIV (sv)	836	#define SvSTATE(sv) (struct coro *)SvIV (sv)
…		…
791	api_transfer(pTHX_ SV prev, SV next, int flags)	839	api_transfer(pTHX_ SV prev, SV next, int flags)
792	{	840	{
793	SV_CORO (prev, "Coro::transfer");	841	SV_CORO (prev, "Coro::transfer");
794	SV_CORO (next, "Coro::transfer");	842	SV_CORO (next, "Coro::transfer");
795		843
796	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	844	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
797	}	845	}
798		846
799	/ Coro ******************************************************************/	847	/ Coro ******************************************************************/
800		848
801	#define PRIO_MAX 3	849	#define PRIO_MAX 3
…		…
809	static GV coro_current, coro_idle;	857	static GV coro_current, coro_idle;
810	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	858	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
811	static int coro_nready;	859	static int coro_nready;
812		860
813	static void	861	static void
814	coro_enq (SV *sv)	862	coro_enq (pTHX_ SV *sv)
815	{	863	{
816	if (SvTYPE (sv) == SVt_PVHV)	864	if (SvTYPE (sv) == SVt_PVHV)
817	{	865	{
818	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);	866	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
819	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	867	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
…		…
830		878
831	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");
832	}	880	}
833		881
834	static SV *	882	static SV *
835	coro_deq (int min_prio)	883	coro_deq (pTHX_ int min_prio)
836	{	884	{
837	int prio = PRIO_MAX - PRIO_MIN;	885	int prio = PRIO_MAX - PRIO_MIN;
838		886
839	min_prio -= PRIO_MIN;	887	min_prio -= PRIO_MIN;
840	if (min_prio < 0)	888	if (min_prio < 0)
…		…
851	}	899	}
852		900
853	static void	901	static void
854	api_ready (SV *coro)	902	api_ready (SV *coro)
855	{	903	{
		904	dTHX;
		905
856	if (SvROK (coro))	906	if (SvROK (coro))
857	coro = SvRV (coro);	907	coro = SvRV (coro);
858		908
		909	LOCK;
859	coro_enq (SvREFCNT_inc (coro));	910	coro_enq (aTHX_ SvREFCNT_inc (coro));
		911	UNLOCK;
860	}	912	}
861		913
862	static void	914	static void
863	api_schedule (void)	915	api_schedule (void)
864	{	916	{
		917	dTHX;
		918
865	SV prev, next;	919	SV prev, next;
866		920
		921	LOCK;
		922
867	prev = SvRV (GvSV (coro_current));	923	prev = SvRV (GvSV (coro_current));
868	next = coro_deq (PRIO_MIN);	924	next = coro_deq (aTHX_ PRIO_MIN);
869		925
870	if (!next)	926	if (!next)
871	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	927	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
872		928
		929	/* free this only after the transfer */
873	coro_mortal = prev;	930	coro_mortal = prev;
874	SV_CORO (prev, "Coro::schedule");	931	SV_CORO (prev, "Coro::schedule");
875		932
876	SvRV (GvSV (coro_current)) = next;	933	SvRV (GvSV (coro_current)) = next;
877		934
878	SV_CORO (next, "Coro::schedule");	935	SV_CORO (next, "Coro::schedule");
879		936
		937	UNLOCK;
		938
880	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	939	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
881	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	940	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
882	}	941	}
883		942
884	static void	943	static void
885	api_cede (void)	944	api_cede (void)
886	{	945	{
		946	dTHX;
		947
		948	LOCK;
887	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	949	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		950	UNLOCK;
888		951
889	api_schedule ();	952	api_schedule ();
890	}	953	}
891		954
892	MODULE = Coro::State PACKAGE = Coro::State	955	MODULE = Coro::State PACKAGE = Coro::State
893		956
894	PROTOTYPES: ENABLE	957	PROTOTYPES: ENABLE
895		958
896	BOOT:	959	BOOT:
897	{ /* {} 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
898	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	965	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
899	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	966	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
900	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	967	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
901		968
902	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	969	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
903	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	970	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
904	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	971	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
905	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	972	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
906
907	if (!padlist_cache)
908	padlist_cache = newHV ();
909		973
910	main_mainstack = PL_mainstack;	974	main_mainstack = PL_mainstack;
911		975
912	coroapi.ver = CORO_API_VERSION;	976	coroapi.ver = CORO_API_VERSION;
913	coroapi.transfer = api_transfer;	977	coroapi.transfer = api_transfer;
…		…
921	Coro__State coro;	985	Coro__State coro;
922		986
923	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	987	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
924	croak ("Coro::State::_newprocess expects an arrayref");	988	croak ("Coro::State::_newprocess expects an arrayref");
925		989
926	New (0, coro, 1, struct coro);	990	Newz (0, coro, 1, struct coro);
927		991
928	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	992	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
929	coro->mainstack = 0; /* actual work is done inside transfer */	993	/coro->mainstack = 0; //actual work is done inside transfer /
930	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;
931		1001
932	RETVAL = coro;	1002	RETVAL = coro;
933	OUTPUT:	1003	OUTPUT:
934	RETVAL	1004	RETVAL
935		1005
…		…
954	if (coro->mainstack && coro->mainstack != main_mainstack)	1024	if (coro->mainstack && coro->mainstack != main_mainstack)
955	{	1025	{
956	struct coro temp;	1026	struct coro temp;
957		1027
958	PUTBACK;	1028	PUTBACK;
959	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1029	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
960	LOAD(aTHX_ coro);	1030	LOAD (aTHX_ coro);
961	SPAGAIN;	1031	SPAGAIN;
962		1032
963	destroy_stacks (aTHX);	1033	destroy_stacks (aTHX);
964		1034
965	LOAD((&temp)); /* this will get rid of defsv etc.. */	1035	LOAD ((&temp)); /* this will get rid of defsv etc.. */
966	SPAGAIN;	1036	SPAGAIN;
967		1037
968	coro->mainstack = 0;	1038	coro->mainstack = 0;
969	}	1039	}
970		1040
971	deallocate_stack (coro);	1041	deallocate_stack (coro);
972		1042	SvREFCNT_dec (coro->args);
973	Safefree (coro);	1043	Safefree (coro);
974
975	void
976	flush()
977	CODE:
978	#ifdef MAY_FLUSH
979	flush_padlist_cache ();
980	#endif
981		1044
982	void	1045	void
983	_exit(code)	1046	_exit(code)
984	int code	1047	int code
985	PROTOTYPE: $	1048	PROTOTYPE: $
986	CODE:	1049	CODE:
987	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
988	_exit (code);	1050	_exit (code);
989	#else
990	signal (SIGTERM, SIG_DFL);
991	raise (SIGTERM);
992	exit (code);
993	#endif
994		1051
995	MODULE = Coro::State PACKAGE = Coro::Cont	1052	MODULE = Coro::State PACKAGE = Coro::Cont
996		1053
997	# this is slightly dirty (should expose a c-level api)	1054	# this is slightly dirty (should expose a c-level api)
998		1055
999	void	1056	void
1000	yield(...)	1057	yield(...)
1001	PROTOTYPE: @	1058	PROTOTYPE: @
1002	CODE:	1059	CODE:
1003	static SV *returnstk;	1060	SV *yieldstack;
1004	SV *sv;	1061	SV *sv;
1005	AV *defav = GvAV (PL_defgv);	1062	AV *defav = GvAV (PL_defgv);
1006	struct coro prev, next;	1063	struct coro prev, next;
1007		1064
1008	if (!returnstk)	1065	yieldstack = *hv_fetch (
1009	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1066	(HV *)SvRV (GvSV (coro_current)),
		1067	"yieldstack", sizeof ("yieldstack") - 1,
		1068	0
		1069	);
1010		1070
1011	/* set up @_ -- ugly */	1071	/* set up @_ -- ugly */
1012	av_clear (defav);	1072	av_clear (defav);
1013	av_fill (defav, items - 1);	1073	av_fill (defav, items - 1);
1014	while (items--)	1074	while (items--)
1015	av_store (defav, items, SvREFCNT_inc (ST(items)));	1075	av_store (defav, items, SvREFCNT_inc (ST(items)));
1016		1076
1017	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1018	sv = av_pop ((AV *)SvRV (returnstk));	1077	sv = av_pop ((AV *)SvRV (yieldstack));
1019	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)));
1020	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)));
1021	SvREFCNT_dec (sv);	1080	SvREFCNT_dec (sv);
1022		1081
1023	transfer(aTHX_ prev, next, 0);	1082	transfer (aTHX_ prev, next, 0);
1024		1083
1025	MODULE = Coro::State PACKAGE = Coro	1084	MODULE = Coro::State PACKAGE = Coro
1026		1085
1027	# this is slightly dirty (should expose a c-level api)	1086	# this is slightly dirty (should expose a c-level api)
1028		1087
…		…
1057	sv_setiv(sv, (IV)&coroapi);	1116	sv_setiv(sv, (IV)&coroapi);
1058	SvREADONLY_on(sv);	1117	SvREADONLY_on(sv);
1059	}	1118	}
1060	}	1119	}
1061		1120
		1121	#if !PERL_MICRO
		1122
1062	void	1123	void
1063	ready(self)	1124	ready(self)
1064	SV * self	1125	SV * self
1065	PROTOTYPE: $	1126	PROTOTYPE: $
1066	CODE:	1127	CODE:
1067	api_ready (self);	1128	api_ready (self);
		1129
		1130	#endif
1068		1131
1069	int	1132	int
1070	nready(...)	1133	nready(...)
1071	PROTOTYPE:	1134	PROTOTYPE:
1072	CODE:	1135	CODE:
…		…
1084	cede(...)	1147	cede(...)
1085	PROTOTYPE:	1148	PROTOTYPE:
1086	CODE:	1149	CODE:
1087	api_cede ();	1150	api_cede ();
1088		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 1.39 by root, Sun Nov 25 20:04:05 2001 UTC vs. Revision 1.70 by root, Mon Dec 26 19:26:52 2005 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.39 by root, Sun Nov 25 20:04:05 2001 UTC vs.
Revision 1.70 by root, Mon Dec 26 19:26:52 2005 UTC