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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.42 by root, Mon Dec 31 20:41:45 2001 UTC vs.
Revision 1.77 by root, Tue Oct 31 23:55:33 2006 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
7	#include <signal.h>	32	#include <errno.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_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
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 */	144	static AV *
102	static HV *coro_state_stash;	145	coro_clone_padlist (pTHX_ CV *cv)
103	static SV *ucoro_state_sv;
104	static U32 ucoro_state_hash;
105	static HV *padlist_cache;
106	static SV coro_mortal; / will be freed after next transfer */
107
108	/* mostly copied from op.c:cv_clone2 */
109	STATIC AV *
110	clone_padlist (AV *protopadlist)
111	{	146	{
112	AV *av;	147	AV *padlist = CvPADLIST (cv);
113	I32 ix;
114	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
115	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
116	SV **pname = AvARRAY (protopad_name);
117	SV **ppad = AvARRAY (protopad);
118	I32 fname = AvFILLp (protopad_name);
119	I32 fpad = AvFILLp (protopad);
120	AV newpadlist, newpad_name, *newpad;	148	AV newpadlist, newpad;
121	SV **npad;
122
123	newpad_name = newAV ();
124	for (ix = fname; ix >= 0; ix--)
125	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
126
127	newpad = newAV ();
128	av_fill (newpad, AvFILLp (protopad));
129	npad = AvARRAY (newpad);
130		149
131	newpadlist = newAV ();	150	newpadlist = newAV ();
132	AvREAL_off (newpadlist);	151	AvREAL_off (newpadlist);
133	av_store (newpadlist, 0, (SV *) newpad_name);	152	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		153	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		154	--AvFILLp (padlist);
		155
		156	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
134	av_store (newpadlist, 1, (SV *) newpad);	157	av_store (newpadlist, 1, (SV *)newpad);
135		158
136	av = newAV (); /* will be @_ */	159	return newpadlist;
137	av_extend (av, 0);	160	}
138	av_store (newpad, 0, (SV *) av);
139	AvFLAGS (av) = AVf_REIFY;
140		161
141	for (ix = fpad; ix > 0; ix--)	162	static void
		163	free_padlist (pTHX_ AV *padlist)
		164	{
		165	/* may be during global destruction */
		166	if (SvREFCNT (padlist))
142	{	167	{
143	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	168	I32 i = AvFILLp (padlist);
144	if (namesv && namesv != &PL_sv_undef)	169	while (i >= 0)
145	{	170	{
146	char name = SvPVX (namesv); / XXX */	171	SV **svp = av_fetch (padlist, i--, FALSE);
147	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	172	if (svp)
148	{ /* lexical from outside? */
149	npad[ix] = SvREFCNT_inc (ppad[ix]);
150	}	173	{
151	else
152	{ /* our own lexical */
153	SV *sv;	174	SV *sv;
154	if (*name == '&')	175	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
155	sv = SvREFCNT_inc (ppad[ix]);	176	SvREFCNT_dec (sv);
156	else if (*name == '@')	177
157	sv = (SV *) newAV ();	178	SvREFCNT_dec (*svp);
158	else if (*name == '%')
159	sv = (SV *) newHV ();
160	else
161	sv = NEWSV (0, 0);
162	if (!SvPADBUSY (sv))
163	SvPADMY_on (sv);
164	npad[ix] = sv;
165	}	179	}
166	}	180	}
167	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	181
168	{	182	SvREFCNT_dec ((SV*)padlist);
169	npad[ix] = SvREFCNT_inc (ppad[ix]);
170	}
171	else
172	{
173	SV *sv = NEWSV (0, 0);
174	SvPADTMP_on (sv);
175	npad[ix] = sv;
176	}
177	}	183	}
		184	}
178		185
179	#if 0 /* return -ENOTUNDERSTOOD */	186	static int
180	/* Now that vars are all in place, clone nested closures. */	187	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		188	{
		189	AV *padlist;
		190	AV av = (AV )mg->mg_obj;
181		191
182	for (ix = fpad; ix > 0; ix--) {	192	/* casting is fun. */
183	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	193	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
184	if (namesv	194	free_padlist (aTHX_ padlist);
185	&& namesv != &PL_sv_undef	195
186	&& !(SvFLAGS(namesv) & SVf_FAKE)	196	SvREFCNT_dec (av);
187	&& *SvPVX(namesv) == '&'	197
188	&& CvCLONE(ppad[ix]))	198	return 0;
189	{	199	}
190	CV kid = cv_clone((CV)ppad[ix]);	200
191	SvREFCNT_dec(ppad[ix]);	201	#define PERL_MAGIC_coro PERL_MAGIC_ext
192	CvCLONE_on(kid);	202
193	SvPADMY_on(kid);	203	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
194	npad[ix] = (SV*)kid;	204
195	}	205	/* the next two functions merely cache the padlists */
		206	static void
		207	get_padlist (pTHX_ CV *cv)
		208	{
		209	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		210
		211	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
		212	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
		213	else
		214	{
		215	#if 0
		216	/* this should work - but it doesn't :( */
		217	CV *cp = Perl_cv_clone (aTHX_ cv);
		218	CvPADLIST (cv) = CvPADLIST (cp);
		219	CvPADLIST (cp) = 0;
		220	SvREFCNT_dec (cp);
		221	#else
		222	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		223	#endif
		224	}
		225	}
		226
		227	static void
		228	put_padlist (pTHX_ CV *cv)
		229	{
		230	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		231
		232	if (!mg)
		233	{
		234	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		235	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		236	mg->mg_virtual = &vtbl_coro;
		237	mg->mg_obj = (SV *)newAV ();
196	}	238	}
197	#endif
198		239
199	return newpadlist;
200	}
201
202	#ifdef MAY_FLUSH
203	STATIC void
204	free_padlist (AV *padlist)
205	{
206	/* may be during global destruction */
207	if (SvREFCNT(padlist))
208	{
209	I32 i = AvFILLp(padlist);
210	while (i >= 0)
211	{
212	SV **svp = av_fetch(padlist, i--, FALSE);
213	SV sv = svp ? svp : Nullsv;
214	if (sv)
215	SvREFCNT_dec(sv);
216	}
217
218	SvREFCNT_dec((SV*)padlist);
219	}
220	}
221	#endif
222
223	/* the next two functions merely cache the padlists */
224	STATIC void
225	get_padlist (CV *cv)
226	{
227	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
228
229	if (he && AvFILLp ((AV )he) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
231	else
232	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
233	}
234
235	STATIC void
236	put_padlist (CV *cv)
237	{
238	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
239
240	if (SvTYPE (*he) != SVt_PVAV)
241	{
242	SvREFCNT_dec (*he);
243	he = (SV )newAV ();
244	}
245
246	av_push ((AV )he, (SV *)CvPADLIST (cv));	240	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
247	}	241	}
248
249	#ifdef MAY_FLUSH
250	STATIC void
251	flush_padlist_cache ()
252	{
253	HV *hv = padlist_cache;
254	padlist_cache = newHV ();
255
256	if (hv_iterinit (hv))
257	{
258	HE *he;
259	AV *padlist;
260
261	while (!!(he = hv_iternext (hv)))
262	{
263	AV av = (AV )HeVAL(he);
264
265	/* casting is fun. */
266	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
267	free_padlist (padlist);
268	}
269	}
270
271	SvREFCNT_dec (hv);
272	}
273	#endif
274		242
275	#define SB do {	243	#define SB do {
276	#define SE } while (0)	244	#define SE } while (0)
277		245
278	#define LOAD(state) load_state(aTHX_ (state));	246	#define LOAD(state) load_state(aTHX_ (state));
279	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	247	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
280		248
281	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	249	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
282		250
283	static void	251	static void
284	load_state(pTHX_ Coro__State c)	252	load_state(pTHX_ Coro__State c)
285	{	253	{
286	PL_dowarn = c->dowarn;	254	PL_dowarn = c->dowarn;
…		…
290	PL_curstack = c->curstack;	258	PL_curstack = c->curstack;
291	PL_mainstack = c->mainstack;	259	PL_mainstack = c->mainstack;
292	PL_stack_sp = c->stack_sp;	260	PL_stack_sp = c->stack_sp;
293	PL_op = c->op;	261	PL_op = c->op;
294	PL_curpad = c->curpad;	262	PL_curpad = c->curpad;
		263	PL_comppad = c->comppad;
		264	PL_compcv = c->compcv;
295	PL_stack_base = c->stack_base;	265	PL_stack_base = c->stack_base;
296	PL_stack_max = c->stack_max;	266	PL_stack_max = c->stack_max;
297	PL_tmps_stack = c->tmps_stack;	267	PL_tmps_stack = c->tmps_stack;
298	PL_tmps_floor = c->tmps_floor;	268	PL_tmps_floor = c->tmps_floor;
299	PL_tmps_ix = c->tmps_ix;	269	PL_tmps_ix = c->tmps_ix;
…		…
305	PL_scopestack_ix = c->scopestack_ix;	275	PL_scopestack_ix = c->scopestack_ix;
306	PL_scopestack_max = c->scopestack_max;	276	PL_scopestack_max = c->scopestack_max;
307	PL_savestack = c->savestack;	277	PL_savestack = c->savestack;
308	PL_savestack_ix = c->savestack_ix;	278	PL_savestack_ix = c->savestack_ix;
309	PL_savestack_max = c->savestack_max;	279	PL_savestack_max = c->savestack_max;
		280	#if PERL_VERSION < 9
310	PL_retstack = c->retstack;	281	PL_retstack = c->retstack;
311	PL_retstack_ix = c->retstack_ix;	282	PL_retstack_ix = c->retstack_ix;
312	PL_retstack_max = c->retstack_max;	283	PL_retstack_max = c->retstack_max;
		284	#endif
		285	PL_curpm = c->curpm;
313	PL_curcop = c->curcop;	286	PL_curcop = c->curcop;
314	PL_top_env = c->top_env;	287	PL_top_env = c->top_env;
315		288
316	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	289	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
317	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	290	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
326	{	299	{
327	AV padlist = (AV )POPs;	300	AV padlist = (AV )POPs;
328		301
329	if (padlist)	302	if (padlist)
330	{	303	{
331	put_padlist (cv); /* mark this padlist as available */	304	put_padlist (aTHX_ cv); /* mark this padlist as available */
332	CvPADLIST(cv) = padlist;	305	CvPADLIST(cv) = padlist;
333	#ifdef USE_THREADS
334	/CvOWNER(cv) = (struct perl_thread )POPs;*/
335	#endif
336	}	306	}
337		307
338	++CvDEPTH(cv);	308	++CvDEPTH(cv);
339	}	309	}
340		310
…		…
367	if (CxTYPE(cx) == CXt_SUB)	337	if (CxTYPE(cx) == CXt_SUB)
368	{	338	{
369	CV *cv = cx->blk_sub.cv;	339	CV *cv = cx->blk_sub.cv;
370	if (CvDEPTH(cv))	340	if (CvDEPTH(cv))
371	{	341	{
372	#ifdef USE_THREADS
373	/XPUSHs ((SV )CvOWNER(cv));*/
374	/CvOWNER(cv) = 0;/
375	/error must unlock this cv etc.. etc.../
376	#endif
377	EXTEND (SP, CvDEPTH(cv)*2);	342	EXTEND (SP, CvDEPTH(cv)*2);
378		343
379	while (--CvDEPTH(cv))	344	while (--CvDEPTH(cv))
380	{	345	{
381	/* this tells the restore code to increment CvDEPTH */	346	/* this tells the restore code to increment CvDEPTH */
…		…
384	}	349	}
385		350
386	PUSHs ((SV *)CvPADLIST(cv));	351	PUSHs ((SV *)CvPADLIST(cv));
387	PUSHs ((SV *)cv);	352	PUSHs ((SV *)cv);
388		353
389	get_padlist (cv); /* this is a monster */	354	get_padlist (aTHX_ cv);
390	}	355	}
391	}	356	}
		357	#ifdef CXt_FORMAT
392	else if (CxTYPE(cx) == CXt_FORMAT)	358	else if (CxTYPE(cx) == CXt_FORMAT)
393	{	359	{
394	/* I never used formats, so how should I know how these are implemented? */	360	/* I never used formats, so how should I know how these are implemented? */
395	/* my bold guess is as a simple, plain sub... */	361	/* my bold guess is as a simple, plain sub... */
396	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	362	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
397	}	363	}
		364	#endif
398	}	365	}
399		366
400	if (top_si->si_type == PERLSI_MAIN)	367	if (top_si->si_type == PERLSI_MAIN)
401	break;	368	break;
402		369
…		…
419	c->curstack = PL_curstack;	386	c->curstack = PL_curstack;
420	c->mainstack = PL_mainstack;	387	c->mainstack = PL_mainstack;
421	c->stack_sp = PL_stack_sp;	388	c->stack_sp = PL_stack_sp;
422	c->op = PL_op;	389	c->op = PL_op;
423	c->curpad = PL_curpad;	390	c->curpad = PL_curpad;
		391	c->comppad = PL_comppad;
		392	c->compcv = PL_compcv;
424	c->stack_base = PL_stack_base;	393	c->stack_base = PL_stack_base;
425	c->stack_max = PL_stack_max;	394	c->stack_max = PL_stack_max;
426	c->tmps_stack = PL_tmps_stack;	395	c->tmps_stack = PL_tmps_stack;
427	c->tmps_floor = PL_tmps_floor;	396	c->tmps_floor = PL_tmps_floor;
428	c->tmps_ix = PL_tmps_ix;	397	c->tmps_ix = PL_tmps_ix;
…		…
434	c->scopestack_ix = PL_scopestack_ix;	403	c->scopestack_ix = PL_scopestack_ix;
435	c->scopestack_max = PL_scopestack_max;	404	c->scopestack_max = PL_scopestack_max;
436	c->savestack = PL_savestack;	405	c->savestack = PL_savestack;
437	c->savestack_ix = PL_savestack_ix;	406	c->savestack_ix = PL_savestack_ix;
438	c->savestack_max = PL_savestack_max;	407	c->savestack_max = PL_savestack_max;
		408	#if PERL_VERSION < 9
439	c->retstack = PL_retstack;	409	c->retstack = PL_retstack;
440	c->retstack_ix = PL_retstack_ix;	410	c->retstack_ix = PL_retstack_ix;
441	c->retstack_max = PL_retstack_max;	411	c->retstack_max = PL_retstack_max;
		412	#endif
		413	c->curpm = PL_curpm;
442	c->curcop = PL_curcop;	414	c->curcop = PL_curcop;
443	c->top_env = PL_top_env;	415	c->top_env = PL_top_env;
444	}	416	}
445		417
446	/*	418	/*
447	* allocate various perl stacks. This is an exact copy	419	* allocate various perl stacks. This is an exact copy
448	* of perl.c:init_stacks, except that it uses less memory	420	* of perl.c:init_stacks, except that it uses less memory
449	* on the assumption that coroutines do not usually need	421	* on the (sometimes correct) assumption that coroutines do
450	* a lot of stackspace.	422	* not usually need a lot of stackspace.
451	*/	423	*/
452	STATIC void	424	static void
453	coro_init_stacks (pTHX)	425	coro_init_stacks (pTHX)
454	{	426	{
		427	LOCK;
		428
455	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	429	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
456	PL_curstackinfo->si_type = PERLSI_MAIN;	430	PL_curstackinfo->si_type = PERLSI_MAIN;
457	PL_curstack = PL_curstackinfo->si_stack;	431	PL_curstack = PL_curstackinfo->si_stack;
458	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	432	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
459		433
…		…
468		442
469	New(54,PL_markstack,16,I32);	443	New(54,PL_markstack,16,I32);
470	PL_markstack_ptr = PL_markstack;	444	PL_markstack_ptr = PL_markstack;
471	PL_markstack_max = PL_markstack + 16;	445	PL_markstack_max = PL_markstack + 16;
472		446
		447	#ifdef SET_MARK_OFFSET
473	SET_MARK_OFFSET;	448	SET_MARK_OFFSET;
		449	#endif
474		450
475	New(54,PL_scopestack,16,I32);	451	New(54,PL_scopestack,16,I32);
476	PL_scopestack_ix = 0;	452	PL_scopestack_ix = 0;
477	PL_scopestack_max = 16;	453	PL_scopestack_max = 16;
478		454
479	New(54,PL_savestack,96,ANY);	455	New(54,PL_savestack,96,ANY);
480	PL_savestack_ix = 0;	456	PL_savestack_ix = 0;
481	PL_savestack_max = 96;	457	PL_savestack_max = 96;
482		458
		459	#if PERL_VERSION < 9
483	New(54,PL_retstack,8,OP*);	460	New(54,PL_retstack,8,OP*);
484	PL_retstack_ix = 0;	461	PL_retstack_ix = 0;
485	PL_retstack_max = 8;	462	PL_retstack_max = 8;
		463	#endif
		464
		465	UNLOCK;
486	}	466	}
487		467
488	/*	468	/*
489	* destroy the stacks, the callchain etc...	469	* destroy the stacks, the callchain etc...
490	* still there is a memleak of 128 bytes...
491	*/	470	*/
492	STATIC void	471	static void
493	destroy_stacks(pTHX)	472	destroy_stacks(pTHX)
494	{	473	{
495	if (!IN_DESTRUCT)	474	if (!IN_DESTRUCT)
496	{	475	{
497	/* is this ugly, I ask? */	476	/* is this ugly, I ask? */
498	while (PL_scopestack_ix)	477	LEAVE_SCOPE (0);
499	LEAVE;
500		478
501	/* sure it is, but more important: is it correct?? :/ */	479	/* sure it is, but more important: is it correct?? :/ */
502	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
503	FREETMPS;	480	FREETMPS;
		481
		482	/POPSTACK_TO (PL_mainstack);//D//use/
504	}	483	}
505		484
506	while (PL_curstackinfo->si_next)	485	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	486	PL_curstackinfo = PL_curstackinfo->si_next;
508		487
509	while (PL_curstackinfo)	488	while (PL_curstackinfo)
510	{	489	{
511	PERL_SI *p = PL_curstackinfo->si_prev;	490	PERL_SI *p = PL_curstackinfo->si_prev;
512		491
513	{	492	{ /D//remove/
514	dSP;	493	dSP;
515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	494	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
516	PUTBACK; /* possibly superfluous */	495	PUTBACK; /* possibly superfluous */
517	}	496	}
518		497
519	if (!IN_DESTRUCT)	498	if (!IN_DESTRUCT)
520	{	499	{
521	dounwind(-1);	500	dounwind (-1);/D//remove/
522	SvREFCNT_dec(PL_curstackinfo->si_stack);	501	SvREFCNT_dec (PL_curstackinfo->si_stack);
523	}	502	}
524		503
525	Safefree(PL_curstackinfo->si_cxstack);	504	Safefree (PL_curstackinfo->si_cxstack);
526	Safefree(PL_curstackinfo);	505	Safefree (PL_curstackinfo);
527	PL_curstackinfo = p;	506	PL_curstackinfo = p;
528	}	507	}
529		508
530	Safefree(PL_tmps_stack);	509	Safefree (PL_tmps_stack);
531	Safefree(PL_markstack);	510	Safefree (PL_markstack);
532	Safefree(PL_scopestack);	511	Safefree (PL_scopestack);
533	Safefree(PL_savestack);	512	Safefree (PL_savestack);
		513	#if PERL_VERSION < 9
534	Safefree(PL_retstack);	514	Safefree (PL_retstack);
		515	#endif
535	}	516	}
536		517
537	static void	518	static void
538	allocate_stack (Coro__State ctx, int alloc)	519	allocate_stack (Coro__State ctx, int alloc)
539	{	520	{
…		…
542	New (0, stack, 1, coro_stack);	523	New (0, stack, 1, coro_stack);
543		524
544	stack->refcnt = 1;	525	stack->refcnt = 1;
545	stack->usecnt = 1;	526	stack->usecnt = 1;
546	stack->gencnt = ctx->gencnt = 0;	527	stack->gencnt = ctx->gencnt = 0;
		528
547	if (alloc)	529	if (alloc)
548	{	530	{
549	#if HAVE_MMAP	531	#if HAVE_MMAP
550	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	532	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
551	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	533	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
552	if (stack->sptr == (void *)-1)	534	if (stack->sptr == (void *)-1)
553	#endif	535	#endif
554	{	536	{
555	/FIXME//D//* reasonable stack size! */
556	stack->ssize = -4096 * sizeof (long);	537	stack->ssize = - (STACKSIZE * (long)sizeof (long));
557	New (0, stack->sptr, 4096, long);	538	New (0, stack->sptr, STACKSIZE, long);
558	}	539	}
559	}	540	}
560	else	541	else
561	stack->sptr = 0;	542	stack->sptr = 0;
562		543
…		…
576	{	557	{
577	#ifdef HAVE_MMAP	558	#ifdef HAVE_MMAP
578	if (stack->ssize > 0 && stack->sptr)	559	if (stack->ssize > 0 && stack->sptr)
579	munmap (stack->sptr, stack->ssize);	560	munmap (stack->sptr, stack->ssize);
580	else	561	else
581	#else	562	#endif
582	Safefree (stack->sptr);	563	Safefree (stack->sptr);
583	#endif	564
584	Safefree (stack);	565	Safefree (stack);
585	}	566	}
586	else if (ctx->gencnt == stack->gencnt)	567	else if (ctx->gencnt == stack->gencnt)
587	--stack->usecnt;	568	--stack->usecnt;
588	}	569	}
…		…
592	setup_coro (void *arg)	573	setup_coro (void *arg)
593	{	574	{
594	/*	575	/*
595	* emulate part of the perl startup here.	576	* emulate part of the perl startup here.
596	*/	577	*/
		578	dTHX;
597	dSP;	579	dSP;
598	Coro__State ctx = (Coro__State)arg;	580	Coro__State ctx = (Coro__State)arg;
599	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	581	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
600		582
601	coro_init_stacks (aTHX);	583	coro_init_stacks (aTHX);
602	/PL_curcop = 0;/	584	/PL_curcop = 0;/
603	/PL_in_eval = PL_in_eval;/ /* inherit */	585	/PL_in_eval = PL_in_eval;/ /* inherit */
604	SvREFCNT_dec (GvAV (PL_defgv));	586	SvREFCNT_dec (GvAV (PL_defgv));
605	GvAV (PL_defgv) = ctx->args;	587	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
606		588
607	SPAGAIN;	589	SPAGAIN;
608		590
609	if (ctx->stack)	591	if (ctx->stack)
610	{	592	{
…		…
637	* that doesn't matter, though, since it is only	619	* that doesn't matter, though, since it is only
638	* pp_nextstate and we never return...	620	* pp_nextstate and we never return...
639	* ah yes, and I don't care anyways ;)	621	* ah yes, and I don't care anyways ;)
640	*/	622	*/
641	PUTBACK;	623	PUTBACK;
642	PL_op = PL_ppaddr[OP_ENTERSUB]();	624	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
643	SPAGAIN;	625	SPAGAIN;
644		626
645	ENTER; /* necessary e.g. for dounwind */	627	ENTER; /* necessary e.g. for dounwind */
646	}	628	}
647	}	629	}
…		…
650	continue_coro (void *arg)	632	continue_coro (void *arg)
651	{	633	{
652	/*	634	/*
653	* this is a _very_ stripped down perl interpreter ;)	635	* this is a _very_ stripped down perl interpreter ;)
654	*/	636	*/
		637	dTHX;
655	Coro__State ctx = (Coro__State)arg;	638	Coro__State ctx = (Coro__State)arg;
656	JMPENV coro_start_env;
657		639
658	/* same as JMPENV_BOOTSTRAP */
659	Zero(&coro_start_env, 1, JMPENV);
660	coro_start_env.je_ret = -1;
661	coro_start_env.je_mustcatch = TRUE;
662	PL_top_env = &coro_start_env;	640	PL_top_env = &ctx->start_env;
663		641
664	ctx->cursp = 0;	642	ctx->cursp = 0;
665	PL_op = PL_op->op_next;	643	PL_op = PL_op->op_next;
666	CALLRUNOPS(aTHX);	644	CALLRUNOPS(aTHX);
667		645
668	abort ();	646	abort ();
669	}	647	}
670		648
671	STATIC void	649	static void
672	transfer(pTHX_ struct coro prev, struct coro next, int flags)	650	transfer (pTHX_ struct coro prev, struct coro next, int flags)
673	{	651	{
674	dSTACKLEVEL;	652	dSTACKLEVEL;
675	static struct coro *xnext;
676		653
677	if (prev != next)	654	if (prev != next)
678	{	655	{
679	xnext = next;
680
681	if (next->mainstack)	656	if (next->mainstack)
682	{	657	{
		658	LOCK;
683	SAVE (prev, flags);	659	SAVE (prev, flags);
684	LOAD (next);	660	LOAD (next);
		661	UNLOCK;
685		662
686	/* mark this state as in-use */	663	/* mark this state as in-use */
687	next->mainstack = 0;	664	next->mainstack = 0;
688	next->tmps_ix = -2;	665	next->tmps_ix = -2;
689		666
…		…
708	continue_coro, (void *)next,	685	continue_coro, (void *)next,
709	next->stack->sptr, labs (next->stack->ssize));	686	next->stack->sptr, labs (next->stack->ssize));
710	}	687	}
711		688
712	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	689	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		690	prev->cursp = stacklevel;
713	/* don't add any code here */	691	/* don't add any code here */
714	}	692	}
715		693	else
		694	next->cursp = stacklevel;
716	}	695	}
717	else if (next->tmps_ix == -2)	696	else if (next->tmps_ix == -2)
718	croak ("tried to transfer to running coroutine");	697	croak ("tried to transfer to running coroutine");
719	else	698	else
720	{	699	{
		700	LOCK;
721	SAVE (prev, -1); /* first get rid of the old state */	701	SAVE (prev, -1); /* first get rid of the old state */
		702	UNLOCK;
722		703
723	if (flags & TRANSFER_SAVE_CCTXT)	704	if (flags & TRANSFER_SAVE_CCTXT)
724	{	705	{
725	if (!prev->stack)	706	if (!prev->stack)
726	allocate_stack (prev, 0);	707	allocate_stack (prev, 0);
727		708
728	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	709	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
729	{	710	{
		711	PL_top_env = &next->start_env;
		712
730	setup_coro (next);	713	setup_coro (next);
		714	next->cursp = stacklevel;
731		715
732	prev->stack->refcnt++;	716	prev->stack->refcnt++;
733	prev->stack->usecnt++;	717	prev->stack->usecnt++;
734	next->stack = prev->stack;	718	next->stack = prev->stack;
735	next->gencnt = prev->gencnt;	719	next->gencnt = prev->gencnt;
736	}	720	}
737	else	721	else
738	{	722	{
		723	assert (!next->stack);
739	allocate_stack (next, 1);	724	allocate_stack (next, 1);
740	coro_create (&(next->stack->cctx),	725	coro_create (&(next->stack->cctx),
741	setup_coro, (void *)next,	726	setup_coro, (void *)next,
742	next->stack->sptr, labs (next->stack->ssize));	727	next->stack->sptr, labs (next->stack->ssize));
743	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	728	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		729	prev->cursp = stacklevel;
744	/* don't add any code here */	730	/* don't add any code here */
745	}	731	}
746	}	732	}
747	else	733	else
		734	{
748	setup_coro (next);	735	setup_coro (next);
		736	next->cursp = stacklevel;
		737	}
749	}	738	}
750
751	/*
752	* xnext is now either prev or next, depending on wether
753	* we switched the c stack or not. that's why I use a global
754	* variable, that should become thread-specific at one point.
755	*/
756	xnext->cursp = stacklevel;
757	}	739	}
758		740
		741	LOCK;
759	if (coro_mortal)	742	if (coro_mortal)
760	{	743	{
761	SvREFCNT_dec (coro_mortal);	744	SvREFCNT_dec (coro_mortal);
762	coro_mortal = 0;	745	coro_mortal = 0;
763	}	746	}
		747	UNLOCK;
764	}	748	}
765		749
766	#define SV_CORO(sv,func) \	750	#define SV_CORO(sv,func) \
767	do { \	751	do { \
768	if (SvROK (sv)) \	752	if (SvROK (sv)) \
769	sv = SvRV (sv); \	753	sv = SvRV (sv); \
770	\	754	\
771	if (SvTYPE(sv) == SVt_PVHV) \	755	if (SvTYPE (sv) == SVt_PVHV) \
772	{ \	756	{ \
773	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	757	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
774	\	758	\
775	if (!he) \	759	if (!he) \
776	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	760	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
777	\	761	\
778	(sv) = SvRV (HeVAL(he)); \	762	(sv) = SvRV (HeVAL(he)); \
779	} \	763	} \
780	\	764	\
781	/* must also be changed inside Coro::Cont::yield */ \	765	/* must also be changed inside Coro::Cont::yield */ \
782	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	766	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
783	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	767	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
784	\	768	\
785	} while(0)	769	} while(0)
786		770
787	#define SvSTATE(sv) (struct coro *)SvIV (sv)	771	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
788		772
789	static void	773	static void
790	api_transfer(pTHX_ SV prev, SV next, int flags)	774	api_transfer(pTHX_ SV prev, SV next, int flags)
791	{	775	{
792	SV_CORO (prev, "Coro::transfer");	776	SV_CORO (prev, "Coro::transfer");
793	SV_CORO (next, "Coro::transfer");	777	SV_CORO (next, "Coro::transfer");
794		778
795	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	779	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
796	}	780	}
797		781
798	/ Coro ******************************************************************/	782	/ Coro ******************************************************************/
799		783
800	#define PRIO_MAX 3	784	#define PRIO_MAX 3
…		…
808	static GV coro_current, coro_idle;	792	static GV coro_current, coro_idle;
809	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	793	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
810	static int coro_nready;	794	static int coro_nready;
811		795
812	static void	796	static void
813	coro_enq (SV *sv)	797	coro_enq (pTHX_ SV *sv)
814	{	798	{
		799	SV **xprio;
		800	int prio;
		801
815	if (SvTYPE (sv) == SVt_PVHV)	802	if (SvTYPE (sv) != SVt_PVHV)
816	{
817	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
818	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
819
820	prio = prio > PRIO_MAX ? PRIO_MAX
821	: prio < PRIO_MIN ? PRIO_MIN
822	: prio;
823
824	av_push (coro_ready [prio - PRIO_MIN], sv);
825	coro_nready++;
826
827	return;
828	}
829
830	croak ("Coro::ready tried to enqueue something that is not a coroutine");	803	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		804
		805	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		806	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		807
		808	prio = prio > PRIO_MAX ? PRIO_MAX
		809	: prio < PRIO_MIN ? PRIO_MIN
		810	: prio;
		811
		812	av_push (coro_ready [prio - PRIO_MIN], sv);
		813	coro_nready++;
831	}	814	}
832		815
833	static SV *	816	static SV *
834	coro_deq (int min_prio)	817	coro_deq (pTHX_ int min_prio)
835	{	818	{
836	int prio = PRIO_MAX - PRIO_MIN;	819	int prio = PRIO_MAX - PRIO_MIN;
837		820
838	min_prio -= PRIO_MIN;	821	min_prio -= PRIO_MIN;
839	if (min_prio < 0)	822	if (min_prio < 0)
…		…
850	}	833	}
851		834
852	static void	835	static void
853	api_ready (SV *coro)	836	api_ready (SV *coro)
854	{	837	{
		838	dTHX;
		839
855	if (SvROK (coro))	840	if (SvROK (coro))
856	coro = SvRV (coro);	841	coro = SvRV (coro);
857		842
		843	LOCK;
858	coro_enq (SvREFCNT_inc (coro));	844	coro_enq (aTHX_ SvREFCNT_inc (coro));
		845	UNLOCK;
859	}	846	}
860		847
861	static void	848	static void
862	api_schedule (void)	849	api_schedule (void)
863	{	850	{
		851	dTHX;
		852
864	SV prev, next;	853	SV prev, next;
865		854
		855	LOCK;
		856
866	prev = SvRV (GvSV (coro_current));	857	prev = SvRV (GvSV (coro_current));
867	next = coro_deq (PRIO_MIN);	858	next = coro_deq (aTHX_ PRIO_MIN);
868		859
869	if (!next)	860	if (!next)
870	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	861	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
871		862
872	/* free this only after the transfer */	863	/* free this only after the transfer */
…		…
875		866
876	SvRV (GvSV (coro_current)) = next;	867	SvRV (GvSV (coro_current)) = next;
877		868
878	SV_CORO (next, "Coro::schedule");	869	SV_CORO (next, "Coro::schedule");
879		870
		871	UNLOCK;
		872
880	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	873	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
881	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	874	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
882	}	875	}
883		876
884	static void	877	static void
885	api_cede (void)	878	api_cede (void)
886	{	879	{
		880	dTHX;
		881
		882	LOCK;
887	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	883	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		884	UNLOCK;
888		885
889	api_schedule ();	886	api_schedule ();
890	}	887	}
891		888
892	MODULE = Coro::State PACKAGE = Coro::State	889	MODULE = Coro::State PACKAGE = Coro::State
893		890
894	PROTOTYPES: ENABLE	891	PROTOTYPES: ENABLE
895		892
896	BOOT:	893	BOOT:
897	{ /* {} necessary for stoopid perl-5.6.x */	894	{ /* {} necessary for stoopid perl-5.6.x */
		895	#ifdef USE_ITHREADS
		896	MUTEX_INIT (&coro_mutex);
		897	#endif
		898
898	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	899	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
899	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	900	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
900	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	901	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
901		902
902	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	903	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
903	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	904	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
904	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	905	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
905	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	906	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
906
907	if (!padlist_cache)
908	padlist_cache = newHV ();
909		907
910	main_mainstack = PL_mainstack;	908	main_mainstack = PL_mainstack;
911		909
912	coroapi.ver = CORO_API_VERSION;	910	coroapi.ver = CORO_API_VERSION;
913	coroapi.transfer = api_transfer;	911	coroapi.transfer = api_transfer;
…		…
921	Coro__State coro;	919	Coro__State coro;
922		920
923	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	921	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
924	croak ("Coro::State::_newprocess expects an arrayref");	922	croak ("Coro::State::_newprocess expects an arrayref");
925		923
926	New (0, coro, 1, struct coro);	924	Newz (0, coro, 1, struct coro);
927		925
928	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	926	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
929	coro->mainstack = 0; /* actual work is done inside transfer */	927	/coro->mainstack = 0; //actual work is done inside transfer /
930	coro->stack = 0;	928	/coro->stack = 0;/
		929
		930	/* same as JMPENV_BOOTSTRAP */
		931	/* we might be able to recycle start_env, but safe is safe */
		932	/Zero(&coro->start_env, 1, JMPENV);/
		933	coro->start_env.je_ret = -1;
		934	coro->start_env.je_mustcatch = TRUE;
931		935
932	RETVAL = coro;	936	RETVAL = coro;
933	OUTPUT:	937	OUTPUT:
934	RETVAL	938	RETVAL
935		939
…		…
954	if (coro->mainstack && coro->mainstack != main_mainstack)	958	if (coro->mainstack && coro->mainstack != main_mainstack)
955	{	959	{
956	struct coro temp;	960	struct coro temp;
957		961
958	PUTBACK;	962	PUTBACK;
959	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	963	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
960	LOAD(aTHX_ coro);	964	LOAD (aTHX_ coro);
961	SPAGAIN;	965	SPAGAIN;
962		966
963	destroy_stacks (aTHX);	967	destroy_stacks (aTHX);
964		968
965	LOAD((&temp)); /* this will get rid of defsv etc.. */	969	LOAD ((&temp)); /* this will get rid of defsv etc.. */
966	SPAGAIN;	970	SPAGAIN;
967		971
968	coro->mainstack = 0;	972	coro->mainstack = 0;
969	}	973	}
970		974
971	deallocate_stack (coro);	975	deallocate_stack (coro);
972		976	SvREFCNT_dec (coro->args);
973	Safefree (coro);	977	Safefree (coro);
974
975	void
976	flush()
977	CODE:
978	#ifdef MAY_FLUSH
979	flush_padlist_cache ();
980	#endif
981		978
982	void	979	void
983	_exit(code)	980	_exit(code)
984	int code	981	int code
985	PROTOTYPE: $	982	PROTOTYPE: $
986	CODE:	983	CODE:
987	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
988	_exit (code);	984	_exit (code);
989	#else
990	signal (SIGTERM, SIG_DFL);
991	raise (SIGTERM);
992	exit (code);
993	#endif
994		985
995	MODULE = Coro::State PACKAGE = Coro::Cont	986	MODULE = Coro::State PACKAGE = Coro::Cont
996		987
997	# this is slightly dirty (should expose a c-level api)	988	# this is slightly dirty (should expose a c-level api)
998		989
999	void	990	void
1000	yield(...)	991	yield(...)
1001	PROTOTYPE: @	992	PROTOTYPE: @
1002	CODE:	993	CODE:
1003	static SV *returnstk;	994	SV *yieldstack;
1004	SV *sv;	995	SV *sv;
1005	AV *defav = GvAV (PL_defgv);	996	AV *defav = GvAV (PL_defgv);
1006	struct coro prev, next;	997	struct coro prev, next;
1007		998
1008	if (!returnstk)	999	yieldstack = *hv_fetch (
1009	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1000	(HV *)SvRV (GvSV (coro_current)),
		1001	"yieldstack", sizeof ("yieldstack") - 1,
		1002	0
		1003	);
1010		1004
1011	/* set up @_ -- ugly */	1005	/* set up @_ -- ugly */
1012	av_clear (defav);	1006	av_clear (defav);
1013	av_fill (defav, items - 1);	1007	av_fill (defav, items - 1);
1014	while (items--)	1008	while (items--)
1015	av_store (defav, items, SvREFCNT_inc (ST(items)));	1009	av_store (defav, items, SvREFCNT_inc (ST(items)));
1016		1010
1017	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1018	sv = av_pop ((AV *)SvRV (returnstk));	1011	sv = av_pop ((AV *)SvRV (yieldstack));
1019	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1012	prev = INT2PTR (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)));	1013	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
1021	SvREFCNT_dec (sv);	1014	SvREFCNT_dec (sv);
1022		1015
1023	transfer(aTHX_ prev, next, 0);	1016	transfer (aTHX_ prev, next, 0);
1024		1017
1025	MODULE = Coro::State PACKAGE = Coro	1018	MODULE = Coro::State PACKAGE = Coro
1026		1019
1027	# this is slightly dirty (should expose a c-level api)	1020	# this is slightly dirty (should expose a c-level api)
1028		1021
…		…
1057	sv_setiv(sv, (IV)&coroapi);	1050	sv_setiv(sv, (IV)&coroapi);
1058	SvREADONLY_on(sv);	1051	SvREADONLY_on(sv);
1059	}	1052	}
1060	}	1053	}
1061		1054
		1055	#if !PERL_MICRO
		1056
1062	void	1057	void
1063	ready(self)	1058	ready(self)
1064	SV * self	1059	SV * self
1065	PROTOTYPE: $	1060	PROTOTYPE: $
1066	CODE:	1061	CODE:
1067	api_ready (self);	1062	api_ready (self);
		1063
		1064	#endif
1068		1065
1069	int	1066	int
1070	nready(...)	1067	nready(...)
1071	PROTOTYPE:	1068	PROTOTYPE:
1072	CODE:	1069	CODE:
…		…
1084	cede(...)	1081	cede(...)
1085	PROTOTYPE:	1082	PROTOTYPE:
1086	CODE:	1083	CODE:
1087	api_cede ();	1084	api_cede ();
1088		1085
		1086	# and these are hacks
		1087	SV *
		1088	_aio_get_state ()
		1089	CODE:
		1090	{
		1091	struct {
		1092	int errorno;
		1093	int laststype;
		1094	int laststatval;
		1095	Stat_t statcache;
		1096	} data;
		1097
		1098	data.errorno = errno;
		1099	data.laststype = PL_laststype;
		1100	data.laststatval = PL_laststatval;
		1101	data.statcache = PL_statcache;
		1102
		1103	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1104	}
		1105	OUTPUT:
		1106	RETVAL
		1107
		1108	void
		1109	_aio_set_state (char *data_)
		1110	PROTOTYPE: $
		1111	CODE:
		1112	{
		1113	struct {
		1114	int errorno;
		1115	int laststype;
		1116	int laststatval;
		1117	Stat_t statcache;
		1118	} data = (void )data_;
		1119
		1120	errno = data->errorno;
		1121	PL_laststype = data->laststype;
		1122	PL_laststatval = data->laststatval;
		1123	PL_statcache = data->statcache;
		1124	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.42 by root, Mon Dec 31 20:41:45 2001 UTC vs. Revision 1.77 by root, Tue Oct 31 23:55:33 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.42 by root, Mon Dec 31 20:41:45 2001 UTC vs.
Revision 1.77 by root, Tue Oct 31 23:55:33 2006 UTC