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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.29 by root, Sat Aug 25 21:40:34 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_ANON
13	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
15	# else	40	# else
16	# undef HAVE_MMAP	41	# undef HAVE_MMAP
17	# endif	42	# endif
18	# endif	43	# endif
19	#endif	44	#endif
20		45
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
25		48
26	/* The next macro should declare a variable stacklevel that contains and approximation	49	/* The next macro should declare a variable stacklevel that contains and approximation
27	* to the current C stack pointer. Its property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
28	* and should be unique. */	51	* and should be unique. */
29	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
30		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
31	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
32		57
33	#include "CoroAPI.h"	58	#include "CoroAPI.h"
34		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
35	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 */
36		75
37	/* 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... */
38	typedef struct {	77	typedef struct {
39	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
40	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
45	void *sptr;	84	void *sptr;
46	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
47	} coro_stack;	86	} coro_stack;
48		87
49	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
50	/* the optional C context */	92	/* the optional C context */
51	coro_stack *stack;	93	coro_stack *stack;
52	void *cursp;	94	void *cursp;
53	int gencnt;	95	int gencnt;
54		96
…		…
66	AV *curstack;	108	AV *curstack;
67	AV *mainstack;	109	AV *mainstack;
68	SV **stack_sp;	110	SV **stack_sp;
69	OP *op;	111	OP *op;
70	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
71	SV **stack_base;	115	SV **stack_base;
72	SV **stack_max;	116	SV **stack_max;
73	SV **tmps_stack;	117	SV **tmps_stack;
74	I32 tmps_floor;	118	I32 tmps_floor;
75	I32 tmps_ix;	119	I32 tmps_ix;
…		…
84	I32 savestack_ix;	128	I32 savestack_ix;
85	I32 savestack_max;	129	I32 savestack_max;
86	OP **retstack;	130	OP **retstack;
87	I32 retstack_ix;	131	I32 retstack_ix;
88	I32 retstack_max;	132	I32 retstack_max;
		133	PMOP *curpm;
89	COP *curcop;	134	COP *curcop;
90	JMPENV *top_env;	135	JMPENV *top_env;
91		136
92	/* data associated with this coroutine (initial args) */	137	/* data associated with this coroutine (initial args) */
93	AV *args;	138	AV *args;
94	};	139	};
95		140
96	typedef struct coro *Coro__State;	141	typedef struct coro *Coro__State;
97	typedef struct coro *Coro__State_or_hashref;	142	typedef struct coro *Coro__State_or_hashref;
98		143
99	static AV main_mainstack; / used to differentiate between $main and others */	144	static AV *
100	static HV *coro_state_stash;	145	coro_clone_padlist (pTHX_ CV *cv)
101	static SV *ucoro_state_sv;
102	static U32 ucoro_state_hash;
103	static HV *padlist_cache;
104
105	/* mostly copied from op.c:cv_clone2 */
106	STATIC AV *
107	clone_padlist (AV *protopadlist)
108	{	146	{
109	AV *av;	147	AV *padlist = CvPADLIST (cv);
110	I32 ix;
111	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
112	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
113	SV **pname = AvARRAY (protopad_name);
114	SV **ppad = AvARRAY (protopad);
115	I32 fname = AvFILLp (protopad_name);
116	I32 fpad = AvFILLp (protopad);
117	AV newpadlist, newpad_name, *newpad;	148	AV newpadlist, newpad;
118	SV **npad;
119
120	newpad_name = newAV ();
121	for (ix = fname; ix >= 0; ix--)
122	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
123
124	newpad = newAV ();
125	av_fill (newpad, AvFILLp (protopad));
126	npad = AvARRAY (newpad);
127		149
128	newpadlist = newAV ();	150	newpadlist = newAV ();
129	AvREAL_off (newpadlist);	151	AvREAL_off (newpadlist);
130	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)));
131	av_store (newpadlist, 1, (SV *) newpad);	157	av_store (newpadlist, 1, (SV *)newpad);
132		158
133	av = newAV (); /* will be @_ */	159	return newpadlist;
134	av_extend (av, 0);	160	}
135	av_store (newpad, 0, (SV *) av);
136	AvFLAGS (av) = AVf_REIFY;
137		161
138	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))
139	{	167	{
140	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	168	I32 i = AvFILLp (padlist);
141	if (namesv && namesv != &PL_sv_undef)	169	while (i >= 0)
142	{	170	{
143	char name = SvPVX (namesv); / XXX */	171	SV **svp = av_fetch (padlist, i--, FALSE);
144	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	172	if (svp)
145	{ /* lexical from outside? */
146	npad[ix] = SvREFCNT_inc (ppad[ix]);
147	}	173	{
148	else
149	{ /* our own lexical */
150	SV *sv;	174	SV *sv;
151	if (*name == '&')	175	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
152	sv = SvREFCNT_inc (ppad[ix]);	176	SvREFCNT_dec (sv);
153	else if (*name == '@')	177
154	sv = (SV *) newAV ();	178	SvREFCNT_dec (*svp);
155	else if (*name == '%')
156	sv = (SV *) newHV ();
157	else
158	sv = NEWSV (0, 0);
159	if (!SvPADBUSY (sv))
160	SvPADMY_on (sv);
161	npad[ix] = sv;
162	}	179	}
163	}	180	}
164	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	181
165	{	182	SvREFCNT_dec ((SV*)padlist);
166	npad[ix] = SvREFCNT_inc (ppad[ix]);
167	}
168	else
169	{
170	SV *sv = NEWSV (0, 0);
171	SvPADTMP_on (sv);
172	npad[ix] = sv;
173	}
174	}	183	}
		184	}
175		185
176	#if 0 /* return -ENOTUNDERSTOOD */	186	static int
177	/* 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;
178		191
179	for (ix = fpad; ix > 0; ix--) {	192	/* casting is fun. */
180	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	193	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
181	if (namesv	194	free_padlist (aTHX_ padlist);
182	&& namesv != &PL_sv_undef	195
183	&& !(SvFLAGS(namesv) & SVf_FAKE)	196	SvREFCNT_dec (av);
184	&& *SvPVX(namesv) == '&'	197
185	&& CvCLONE(ppad[ix]))	198	return 0;
186	{	199	}
187	CV kid = cv_clone((CV)ppad[ix]);	200
188	SvREFCNT_dec(ppad[ix]);	201	#define PERL_MAGIC_coro PERL_MAGIC_ext
189	CvCLONE_on(kid);	202
190	SvPADMY_on(kid);	203	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
191	npad[ix] = (SV*)kid;	204
192	}	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 ();
193	}	238	}
194	#endif
195		239
196	return newpadlist;
197	}
198
199	#ifdef MAY_FLUSH
200	STATIC void
201	free_padlist (AV *padlist)
202	{
203	/* may be during global destruction */
204	if (SvREFCNT(padlist))
205	{
206	I32 i = AvFILLp(padlist);
207	while (i >= 0)
208	{
209	SV **svp = av_fetch(padlist, i--, FALSE);
210	SV sv = svp ? svp : Nullsv;
211	if (sv)
212	SvREFCNT_dec(sv);
213	}
214
215	SvREFCNT_dec((SV*)padlist);
216	}
217	}
218	#endif
219
220	/* the next two functions merely cache the padlists */
221	STATIC void
222	get_padlist (CV *cv)
223	{
224	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
225
226	if (he && AvFILLp ((AV )he) >= 0)
227	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
228	else
229	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
230	}
231
232	STATIC void
233	put_padlist (CV *cv)
234	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
236
237	if (SvTYPE (*he) != SVt_PVAV)
238	{
239	SvREFCNT_dec (*he);
240	he = (SV )newAV ();
241	}
242
243	av_push ((AV )he, (SV *)CvPADLIST (cv));	240	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
244	}	241	}
245
246	#ifdef MAY_FLUSH
247	STATIC void
248	flush_padlist_cache ()
249	{
250	HV *hv = padlist_cache;
251	padlist_cache = newHV ();
252
253	if (hv_iterinit (hv))
254	{
255	HE *he;
256	AV *padlist;
257
258	while (!!(he = hv_iternext (hv)))
259	{
260	AV av = (AV )HeVAL(he);
261
262	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);
265	}
266	}
267
268	SvREFCNT_dec (hv);
269	}
270	#endif
271		242
272	#define SB do {	243	#define SB do {
273	#define SE } while (0)	244	#define SE } while (0)
274		245
275	#define LOAD(state) load_state(aTHX_ (state));	246	#define LOAD(state) load_state(aTHX_ (state));
276	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	247	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
277		248
278	#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
279		250
280	static void	251	static void
281	load_state(pTHX_ Coro__State c)	252	load_state(pTHX_ Coro__State c)
282	{	253	{
283	PL_dowarn = c->dowarn;	254	PL_dowarn = c->dowarn;
…		…
287	PL_curstack = c->curstack;	258	PL_curstack = c->curstack;
288	PL_mainstack = c->mainstack;	259	PL_mainstack = c->mainstack;
289	PL_stack_sp = c->stack_sp;	260	PL_stack_sp = c->stack_sp;
290	PL_op = c->op;	261	PL_op = c->op;
291	PL_curpad = c->curpad;	262	PL_curpad = c->curpad;
		263	PL_comppad = c->comppad;
		264	PL_compcv = c->compcv;
292	PL_stack_base = c->stack_base;	265	PL_stack_base = c->stack_base;
293	PL_stack_max = c->stack_max;	266	PL_stack_max = c->stack_max;
294	PL_tmps_stack = c->tmps_stack;	267	PL_tmps_stack = c->tmps_stack;
295	PL_tmps_floor = c->tmps_floor;	268	PL_tmps_floor = c->tmps_floor;
296	PL_tmps_ix = c->tmps_ix;	269	PL_tmps_ix = c->tmps_ix;
…		…
302	PL_scopestack_ix = c->scopestack_ix;	275	PL_scopestack_ix = c->scopestack_ix;
303	PL_scopestack_max = c->scopestack_max;	276	PL_scopestack_max = c->scopestack_max;
304	PL_savestack = c->savestack;	277	PL_savestack = c->savestack;
305	PL_savestack_ix = c->savestack_ix;	278	PL_savestack_ix = c->savestack_ix;
306	PL_savestack_max = c->savestack_max;	279	PL_savestack_max = c->savestack_max;
		280	#if PERL_VERSION < 9
307	PL_retstack = c->retstack;	281	PL_retstack = c->retstack;
308	PL_retstack_ix = c->retstack_ix;	282	PL_retstack_ix = c->retstack_ix;
309	PL_retstack_max = c->retstack_max;	283	PL_retstack_max = c->retstack_max;
		284	#endif
		285	PL_curpm = c->curpm;
310	PL_curcop = c->curcop;	286	PL_curcop = c->curcop;
311	PL_top_env = c->top_env;	287	PL_top_env = c->top_env;
312		288
313	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	289	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
314	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	290	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
323	{	299	{
324	AV padlist = (AV )POPs;	300	AV padlist = (AV )POPs;
325		301
326	if (padlist)	302	if (padlist)
327	{	303	{
328	put_padlist (cv); /* mark this padlist as available */	304	put_padlist (aTHX_ cv); /* mark this padlist as available */
329	CvPADLIST(cv) = padlist;	305	CvPADLIST(cv) = padlist;
330	#ifdef USE_THREADS
331	/CvOWNER(cv) = (struct perl_thread )POPs;*/
332	#endif
333	}	306	}
334		307
335	++CvDEPTH(cv);	308	++CvDEPTH(cv);
336	}	309	}
337		310
…		…
355		328
356	PUSHs (Nullsv);	329	PUSHs (Nullsv);
357	/* this loop was inspired by pp_caller */	330	/* this loop was inspired by pp_caller */
358	for (;;)	331	for (;;)
359	{	332	{
360	do	333	while (cxix >= 0)
361	{	334	{
362	PERL_CONTEXT *cx = &ccstk[cxix--];	335	PERL_CONTEXT *cx = &ccstk[cxix--];
363		336
364	if (CxTYPE(cx) == CXt_SUB)	337	if (CxTYPE(cx) == CXt_SUB)
365	{	338	{
366	CV *cv = cx->blk_sub.cv;	339	CV *cv = cx->blk_sub.cv;
367	if (CvDEPTH(cv))	340	if (CvDEPTH(cv))
368	{	341	{
369	#ifdef USE_THREADS
370	/XPUSHs ((SV )CvOWNER(cv));*/
371	/CvOWNER(cv) = 0;/
372	/error must unlock this cv etc.. etc.../
373	#endif
374	EXTEND (SP, CvDEPTH(cv)*2);	342	EXTEND (SP, CvDEPTH(cv)*2);
375		343
376	while (--CvDEPTH(cv))	344	while (--CvDEPTH(cv))
377	{	345	{
378	/* this tells the restore code to increment CvDEPTH */	346	/* this tells the restore code to increment CvDEPTH */
…		…
381	}	349	}
382		350
383	PUSHs ((SV *)CvPADLIST(cv));	351	PUSHs ((SV *)CvPADLIST(cv));
384	PUSHs ((SV *)cv);	352	PUSHs ((SV *)cv);
385		353
386	get_padlist (cv); /* this is a monster */	354	get_padlist (aTHX_ cv);
387	}	355	}
388	}	356	}
		357	#ifdef CXt_FORMAT
389	else if (CxTYPE(cx) == CXt_FORMAT)	358	else if (CxTYPE(cx) == CXt_FORMAT)
390	{	359	{
391	/* 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? */
392	/* my bold guess is as a simple, plain sub... */	361	/* my bold guess is as a simple, plain sub... */
393	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");
394	}	363	}
		364	#endif
395	}	365	}
396	while (cxix >= 0);
397		366
398	if (top_si->si_type == PERLSI_MAIN)	367	if (top_si->si_type == PERLSI_MAIN)
399	break;	368	break;
400		369
401	top_si = top_si->si_prev;	370	top_si = top_si->si_prev;
…		…
417	c->curstack = PL_curstack;	386	c->curstack = PL_curstack;
418	c->mainstack = PL_mainstack;	387	c->mainstack = PL_mainstack;
419	c->stack_sp = PL_stack_sp;	388	c->stack_sp = PL_stack_sp;
420	c->op = PL_op;	389	c->op = PL_op;
421	c->curpad = PL_curpad;	390	c->curpad = PL_curpad;
		391	c->comppad = PL_comppad;
		392	c->compcv = PL_compcv;
422	c->stack_base = PL_stack_base;	393	c->stack_base = PL_stack_base;
423	c->stack_max = PL_stack_max;	394	c->stack_max = PL_stack_max;
424	c->tmps_stack = PL_tmps_stack;	395	c->tmps_stack = PL_tmps_stack;
425	c->tmps_floor = PL_tmps_floor;	396	c->tmps_floor = PL_tmps_floor;
426	c->tmps_ix = PL_tmps_ix;	397	c->tmps_ix = PL_tmps_ix;
…		…
432	c->scopestack_ix = PL_scopestack_ix;	403	c->scopestack_ix = PL_scopestack_ix;
433	c->scopestack_max = PL_scopestack_max;	404	c->scopestack_max = PL_scopestack_max;
434	c->savestack = PL_savestack;	405	c->savestack = PL_savestack;
435	c->savestack_ix = PL_savestack_ix;	406	c->savestack_ix = PL_savestack_ix;
436	c->savestack_max = PL_savestack_max;	407	c->savestack_max = PL_savestack_max;
		408	#if PERL_VERSION < 9
437	c->retstack = PL_retstack;	409	c->retstack = PL_retstack;
438	c->retstack_ix = PL_retstack_ix;	410	c->retstack_ix = PL_retstack_ix;
439	c->retstack_max = PL_retstack_max;	411	c->retstack_max = PL_retstack_max;
		412	#endif
		413	c->curpm = PL_curpm;
440	c->curcop = PL_curcop;	414	c->curcop = PL_curcop;
441	c->top_env = PL_top_env;	415	c->top_env = PL_top_env;
442	}	416	}
443		417
444	/*	418	/*
445	* allocate various perl stacks. This is an exact copy	419	* allocate various perl stacks. This is an exact copy
446	* of perl.c:init_stacks, except that it uses less memory	420	* of perl.c:init_stacks, except that it uses less memory
447	* on the assumption that coroutines do not usually need	421	* on the (sometimes correct) assumption that coroutines do
448	* a lot of stackspace.	422	* not usually need a lot of stackspace.
449	*/	423	*/
450	STATIC void	424	static void
451	coro_init_stacks (pTHX)	425	coro_init_stacks (pTHX)
452	{	426	{
		427	LOCK;
		428
453	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	429	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
454	PL_curstackinfo->si_type = PERLSI_MAIN;	430	PL_curstackinfo->si_type = PERLSI_MAIN;
455	PL_curstack = PL_curstackinfo->si_stack;	431	PL_curstack = PL_curstackinfo->si_stack;
456	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	432	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
457		433
…		…
466		442
467	New(54,PL_markstack,16,I32);	443	New(54,PL_markstack,16,I32);
468	PL_markstack_ptr = PL_markstack;	444	PL_markstack_ptr = PL_markstack;
469	PL_markstack_max = PL_markstack + 16;	445	PL_markstack_max = PL_markstack + 16;
470		446
		447	#ifdef SET_MARK_OFFSET
471	SET_MARK_OFFSET;	448	SET_MARK_OFFSET;
		449	#endif
472		450
473	New(54,PL_scopestack,16,I32);	451	New(54,PL_scopestack,16,I32);
474	PL_scopestack_ix = 0;	452	PL_scopestack_ix = 0;
475	PL_scopestack_max = 16;	453	PL_scopestack_max = 16;
476		454
477	New(54,PL_savestack,96,ANY);	455	New(54,PL_savestack,96,ANY);
478	PL_savestack_ix = 0;	456	PL_savestack_ix = 0;
479	PL_savestack_max = 96;	457	PL_savestack_max = 96;
480		458
		459	#if PERL_VERSION < 9
481	New(54,PL_retstack,8,OP*);	460	New(54,PL_retstack,8,OP*);
482	PL_retstack_ix = 0;	461	PL_retstack_ix = 0;
483	PL_retstack_max = 8;	462	PL_retstack_max = 8;
		463	#endif
		464
		465	UNLOCK;
484	}	466	}
485		467
486	/*	468	/*
487	* destroy the stacks, the callchain etc...	469	* destroy the stacks, the callchain etc...
488	* still there is a memleak of 128 bytes...
489	*/	470	*/
490	STATIC void	471	static void
491	destroy_stacks(pTHX)	472	destroy_stacks(pTHX)
492	{	473	{
		474	if (!IN_DESTRUCT)
		475	{
493	/* is this ugly, I ask? */	476	/* is this ugly, I ask? */
494	while (PL_scopestack_ix)	477	LEAVE_SCOPE (0);
495	LEAVE;
496		478
497	/* sure it is, but more important: is it correct?? :/ */	479	/* sure it is, but more important: is it correct?? :/ */
498	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
499	FREETMPS;	480	FREETMPS;
		481
		482	/POPSTACK_TO (PL_mainstack);//D//use/
		483	}
500		484
501	while (PL_curstackinfo->si_next)	485	while (PL_curstackinfo->si_next)
502	PL_curstackinfo = PL_curstackinfo->si_next;	486	PL_curstackinfo = PL_curstackinfo->si_next;
503		487
504	while (PL_curstackinfo)	488	while (PL_curstackinfo)
505	{	489	{
506	PERL_SI *p = PL_curstackinfo->si_prev;	490	PERL_SI *p = PL_curstackinfo->si_prev;
507		491
508	{	492	{ /D//remove/
509	dSP;	493	dSP;
510	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	494	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
511	PUTBACK; /* possibly superfluous */	495	PUTBACK; /* possibly superfluous */
512	}	496	}
513		497
514	if (PL_main_cv != Nullcv) /* don't during destruction. hack? */	498	if (!IN_DESTRUCT)
515	dounwind(-1);	499	{
516		500	dounwind (-1);/D//remove/
517	SvREFCNT_dec(PL_curstackinfo->si_stack);	501	SvREFCNT_dec (PL_curstackinfo->si_stack);
		502	}
		503
518	Safefree(PL_curstackinfo->si_cxstack);	504	Safefree (PL_curstackinfo->si_cxstack);
519	Safefree(PL_curstackinfo);	505	Safefree (PL_curstackinfo);
520	PL_curstackinfo = p;	506	PL_curstackinfo = p;
521	}	507	}
522		508
523	Safefree(PL_tmps_stack);	509	Safefree (PL_tmps_stack);
524	Safefree(PL_markstack);	510	Safefree (PL_markstack);
525	Safefree(PL_scopestack);	511	Safefree (PL_scopestack);
526	Safefree(PL_savestack);	512	Safefree (PL_savestack);
		513	#if PERL_VERSION < 9
527	Safefree(PL_retstack);	514	Safefree (PL_retstack);
		515	#endif
528	}	516	}
529		517
530	static void	518	static void
531	allocate_stack (Coro__State ctx, int alloc)	519	allocate_stack (Coro__State ctx, int alloc)
532	{	520	{
…		…
535	New (0, stack, 1, coro_stack);	523	New (0, stack, 1, coro_stack);
536		524
537	stack->refcnt = 1;	525	stack->refcnt = 1;
538	stack->usecnt = 1;	526	stack->usecnt = 1;
539	stack->gencnt = ctx->gencnt = 0;	527	stack->gencnt = ctx->gencnt = 0;
		528
540	if (alloc)	529	if (alloc)
541	{	530	{
542	#ifdef HAVE_MMAP	531	#if HAVE_MMAP
543	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 */
544	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	533	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
545	if (stack->sptr == (void *)-1)	534	if (stack->sptr == (void *)-1)
546	#endif	535	#endif
547	{	536	{
548	/FIXME//D//* reasonable stack size! */
549	stack->ssize = -4096 * sizeof (long);	537	stack->ssize = - (STACKSIZE * (long)sizeof (long));
550	New (0, stack->sptr, 4096, long);	538	New (0, stack->sptr, STACKSIZE, long);
551	}	539	}
552	}	540	}
553	else	541	else
554	stack->sptr = 0;	542	stack->sptr = 0;
555		543
…		…
569	{	557	{
570	#ifdef HAVE_MMAP	558	#ifdef HAVE_MMAP
571	if (stack->ssize > 0 && stack->sptr)	559	if (stack->ssize > 0 && stack->sptr)
572	munmap (stack->sptr, stack->ssize);	560	munmap (stack->sptr, stack->ssize);
573	else	561	else
574	#else	562	#endif
575	Safefree (stack->sptr);	563	Safefree (stack->sptr);
576	#endif	564
577	Safefree (stack);	565	Safefree (stack);
578	}	566	}
579	else if (ctx->gencnt == stack->gencnt)	567	else if (ctx->gencnt == stack->gencnt)
580	--stack->usecnt;	568	--stack->usecnt;
581	}	569	}
…		…
585	setup_coro (void *arg)	573	setup_coro (void *arg)
586	{	574	{
587	/*	575	/*
588	* emulate part of the perl startup here.	576	* emulate part of the perl startup here.
589	*/	577	*/
		578	dTHX;
590	dSP;	579	dSP;
591	Coro__State ctx = (Coro__State)arg;	580	Coro__State ctx = (Coro__State)arg;
592	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	581	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
593		582
594	coro_init_stacks (aTHX);	583	coro_init_stacks (aTHX);
595	/PL_curcop = 0;/	584	/PL_curcop = 0;/
596	/PL_in_eval = PL_in_eval;/ /* inherit */	585	/PL_in_eval = PL_in_eval;/ /* inherit */
597	SvREFCNT_dec (GvAV (PL_defgv));	586	SvREFCNT_dec (GvAV (PL_defgv));
598	GvAV (PL_defgv) = ctx->args;	587	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
599		588
600	SPAGAIN;	589	SPAGAIN;
601		590
602	if (ctx->stack)	591	if (ctx->stack)
603	{	592	{
…		…
630	* that doesn't matter, though, since it is only	619	* that doesn't matter, though, since it is only
631	* pp_nextstate and we never return...	620	* pp_nextstate and we never return...
632	* ah yes, and I don't care anyways ;)	621	* ah yes, and I don't care anyways ;)
633	*/	622	*/
634	PUTBACK;	623	PUTBACK;
635	PL_op = pp_entersub();	624	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
636	SPAGAIN;	625	SPAGAIN;
637		626
638	ENTER; /* necessary e.g. for dounwind */	627	ENTER; /* necessary e.g. for dounwind */
639	}	628	}
640	}	629	}
…		…
643	continue_coro (void *arg)	632	continue_coro (void *arg)
644	{	633	{
645	/*	634	/*
646	* this is a _very_ stripped down perl interpreter ;)	635	* this is a _very_ stripped down perl interpreter ;)
647	*/	636	*/
		637	dTHX;
648	Coro__State ctx = (Coro__State)arg;	638	Coro__State ctx = (Coro__State)arg;
649		639
650	/FIXME//* must set up top_env here */	640	PL_top_env = &ctx->start_env;
		641
651	ctx->cursp = 0;	642	ctx->cursp = 0;
652	PL_op = PL_op->op_next;	643	PL_op = PL_op->op_next;
653	CALLRUNOPS(aTHX);	644	CALLRUNOPS(aTHX);
654		645
655	abort ();	646	abort ();
656	}	647	}
657		648
658	STATIC void	649	static void
659	transfer(pTHX_ struct coro prev, struct coro next, int flags)	650	transfer (pTHX_ struct coro prev, struct coro next, int flags)
660	{	651	{
661	dSTACKLEVEL;	652	dSTACKLEVEL;
662	static struct coro *xnext;
663		653
664	if (prev != next)	654	if (prev != next)
665	{	655	{
666	xnext = next;
667
668	if (next->mainstack)	656	if (next->mainstack)
669	{	657	{
		658	LOCK;
670	SAVE (prev, flags);	659	SAVE (prev, flags);
671	LOAD (next);	660	LOAD (next);
		661	UNLOCK;
672		662
673	/* mark this state as in-use */	663	/* mark this state as in-use */
674	next->mainstack = 0;	664	next->mainstack = 0;
675	next->tmps_ix = -2;	665	next->tmps_ix = -2;
676		666
…		…
695	continue_coro, (void *)next,	685	continue_coro, (void *)next,
696	next->stack->sptr, labs (next->stack->ssize));	686	next->stack->sptr, labs (next->stack->ssize));
697	}	687	}
698		688
699	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	689	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		690	prev->cursp = stacklevel;
700	/* don't add any code here */	691	/* don't add any code here */
701	}	692	}
702		693	else
		694	next->cursp = stacklevel;
703	}	695	}
704	else if (next->tmps_ix == -2)	696	else if (next->tmps_ix == -2)
705	croak ("tried to transfer to running coroutine");	697	croak ("tried to transfer to running coroutine");
706	else	698	else
707	{	699	{
		700	LOCK;
708	SAVE (prev, -1); /* first get rid of the old state */	701	SAVE (prev, -1); /* first get rid of the old state */
		702	UNLOCK;
709		703
710	if (flags & TRANSFER_SAVE_CCTXT)	704	if (flags & TRANSFER_SAVE_CCTXT)
711	{	705	{
712	if (!prev->stack)	706	if (!prev->stack)
713	allocate_stack (prev, 0);	707	allocate_stack (prev, 0);
714		708
715	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	709	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
716	{	710	{
		711	PL_top_env = &next->start_env;
		712
717	setup_coro (next);	713	setup_coro (next);
		714	next->cursp = stacklevel;
718		715
719	prev->stack->refcnt++;	716	prev->stack->refcnt++;
720	prev->stack->usecnt++;	717	prev->stack->usecnt++;
721	next->stack = prev->stack;	718	next->stack = prev->stack;
722	next->gencnt = prev->gencnt;	719	next->gencnt = prev->gencnt;
723	}	720	}
724	else	721	else
725	{	722	{
		723	assert (!next->stack);
726	allocate_stack (next, 1);	724	allocate_stack (next, 1);
727	coro_create (&(next->stack->cctx),	725	coro_create (&(next->stack->cctx),
728	setup_coro, (void *)next,	726	setup_coro, (void *)next,
729	next->stack->sptr, labs (next->stack->ssize));	727	next->stack->sptr, labs (next->stack->ssize));
730	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	728	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		729	prev->cursp = stacklevel;
731	/* don't add any code here */	730	/* don't add any code here */
732	}	731	}
733	}	732	}
734	else	733	else
		734	{
735	setup_coro (next);	735	setup_coro (next);
		736	next->cursp = stacklevel;
		737	}
736	}	738	}
737	}	739	}
738		740
739	/*	741	LOCK;
740	* xnext is now either prev or next, depending on wether	742	if (coro_mortal)
741	* we switched the c stack or not. that's why i use a global
742	* variable, that should become thread-specific at one point.
743	*/
744	xnext->cursp = stacklevel;
745	}
746
747	static struct coro *
748	sv_to_coro (SV arg, const char funcname, const char *varname)
749	{
750	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
751	{	743	{
752	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	744	SvREFCNT_dec (coro_mortal);
753		745	coro_mortal = 0;
754	if (!he)
755	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
756
757	arg = HeVAL(he);
758	}	746	}
759		747	UNLOCK;
		748	}
		749
		750	#define SV_CORO(sv,func) \
		751	do { \
		752	if (SvROK (sv)) \
		753	sv = SvRV (sv); \
		754	\
		755	if (SvTYPE (sv) == SVt_PVHV) \
		756	{ \
		757	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		758	\
		759	if (!he) \
		760	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		761	\
		762	(sv) = SvRV (HeVAL(he)); \
		763	} \
		764	\
760	/* must also be changed inside Coro::Cont::yield */	765	/* must also be changed inside Coro::Cont::yield */ \
761	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	766	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
762	return (struct coro ) SvIV((SV)SvRV(arg));
763
764	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	767	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
765	/NORETURN/	768	\
766	}	769	} while(0)
		770
		771	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
767		772
768	static void	773	static void
769	api_transfer(pTHX_ SV prev, SV next, int flags)	774	api_transfer(pTHX_ SV prev, SV next, int flags)
770	{	775	{
771	transfer(aTHX_	776	SV_CORO (prev, "Coro::transfer");
772	sv_to_coro (prev, "Coro::transfer", "prev"),	777	SV_CORO (next, "Coro::transfer");
773	sv_to_coro (next, "Coro::transfer", "next"),	778
774	flags);	779	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
775	}	780	}
776		781
777	/ Coro ******************************************************************/	782	/ Coro ******************************************************************/
778		783
779	#define PRIO_MAX 3	784	#define PRIO_MAX 3
…		…
787	static GV coro_current, coro_idle;	792	static GV coro_current, coro_idle;
788	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	793	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
789	static int coro_nready;	794	static int coro_nready;
790		795
791	static void	796	static void
792	coro_enq (SV *sv)	797	coro_enq (pTHX_ SV *sv)
793	{	798	{
794	if (SvROK (sv))	799	SV **xprio;
795	{	800	int prio;
796	SV *hv = SvRV (sv);	801
797	if (SvTYPE (hv) == SVt_PVHV)	802	if (SvTYPE (sv) != SVt_PVHV)
798	{
799	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
800	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
801
802	prio = prio > PRIO_MAX ? PRIO_MAX
803	: prio < PRIO_MIN ? PRIO_MIN
804	: prio;
805
806	av_push (coro_ready [prio - PRIO_MIN], sv);
807	coro_nready++;
808
809	return;
810	}
811	}
812
813	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++;
814	}	814	}
815		815
816	static SV *	816	static SV *
817	coro_deq (int min_prio)	817	coro_deq (pTHX_ int min_prio)
818	{	818	{
819	int prio = PRIO_MAX - PRIO_MIN;	819	int prio = PRIO_MAX - PRIO_MIN;
820		820
821	min_prio -= PRIO_MIN;	821	min_prio -= PRIO_MIN;
822	if (min_prio < 0)	822	if (min_prio < 0)
…		…
833	}	833	}
834		834
835	static void	835	static void
836	api_ready (SV *coro)	836	api_ready (SV *coro)
837	{	837	{
		838	dTHX;
		839
		840	if (SvROK (coro))
		841	coro = SvRV (coro);
		842
		843	LOCK;
838	coro_enq (SvREFCNT_inc (coro));	844	coro_enq (aTHX_ SvREFCNT_inc (coro));
		845	UNLOCK;
839	}	846	}
840		847
841	static void	848	static void
842	api_schedule (int cede)	849	api_schedule (void)
843	{	850	{
		851	dTHX;
		852
844	SV prev, next;	853	SV prev, next;
845		854
		855	LOCK;
		856
846	prev = GvSV (coro_current);	857	prev = SvRV (GvSV (coro_current));
847
848	if (cede)
849	coro_enq (SvREFCNT_inc (prev));
850
851	next = coro_deq (PRIO_MIN);	858	next = coro_deq (aTHX_ PRIO_MIN);
852		859
853	if (!next)	860	if (!next)
854	next = SvREFCNT_inc (GvSV (coro_idle));	861	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
855		862
856	GvSV (coro_current) = SvREFCNT_inc (next);	863	/* free this only after the transfer */
857	transfer (aTHX_	864	coro_mortal = prev;
858	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	865	SV_CORO (prev, "Coro::schedule");
859	sv_to_coro (next, "Coro::schedule", "next coroutine"),	866
		867	SvRV (GvSV (coro_current)) = next;
		868
		869	SV_CORO (next, "Coro::schedule");
		870
		871	UNLOCK;
		872
		873	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
860	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	874	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
861	SvREFCNT_dec (next);	875	}
862	SvREFCNT_dec (prev);	876
		877	static void
		878	api_cede (void)
		879	{
		880	dTHX;
		881
		882	LOCK;
		883	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		884	UNLOCK;
		885
		886	api_schedule ();
863	}	887	}
864		888
865	MODULE = Coro::State PACKAGE = Coro::State	889	MODULE = Coro::State PACKAGE = Coro::State
866		890
867	PROTOTYPES: ENABLE	891	PROTOTYPES: ENABLE
868		892
869	BOOT:	893	BOOT:
870	{ /* {} 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
871	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	899	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
872	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	900	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
873	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	901	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
874		902
875	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	903	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
876	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	904	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
877	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	905	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
878	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	906	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
879
880	if (!padlist_cache)
881	padlist_cache = newHV ();
882		907
883	main_mainstack = PL_mainstack;	908	main_mainstack = PL_mainstack;
884		909
885	coroapi.ver = CORO_API_VERSION;	910	coroapi.ver = CORO_API_VERSION;
886	coroapi.transfer = api_transfer;	911	coroapi.transfer = api_transfer;
…		…
894	Coro__State coro;	919	Coro__State coro;
895		920
896	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	921	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
897	croak ("Coro::State::_newprocess expects an arrayref");	922	croak ("Coro::State::_newprocess expects an arrayref");
898		923
899	New (0, coro, 1, struct coro);	924	Newz (0, coro, 1, struct coro);
900		925
901	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	926	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
902	coro->mainstack = 0; /* actual work is done inside transfer */	927	/coro->mainstack = 0; //actual work is done inside transfer /
903	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;
904		935
905	RETVAL = coro;	936	RETVAL = coro;
906	OUTPUT:	937	OUTPUT:
907	RETVAL	938	RETVAL
908		939
909	void	940	void
910	transfer(prev, next, flags)	941	transfer(prev, next, flags)
911	Coro::State_or_hashref prev	942	SV *prev
912	Coro::State_or_hashref next	943	SV *next
913	int flags	944	int flags
914	PROTOTYPE: @	945	PROTOTYPE: @
915	CODE:	946	CODE:
916	PUTBACK;	947	PUTBACK;
		948	SV_CORO (next, "Coro::transfer");
		949	SV_CORO (prev, "Coro::transfer");
917	transfer (aTHX_ prev, next, flags);	950	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
918	SPAGAIN;	951	SPAGAIN;
919		952
920	void	953	void
921	DESTROY(coro)	954	DESTROY(coro)
922	Coro::State coro	955	Coro::State coro
…		…
925	if (coro->mainstack && coro->mainstack != main_mainstack)	958	if (coro->mainstack && coro->mainstack != main_mainstack)
926	{	959	{
927	struct coro temp;	960	struct coro temp;
928		961
929	PUTBACK;	962	PUTBACK;
930	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	963	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
931	LOAD(aTHX_ coro);	964	LOAD (aTHX_ coro);
932	SPAGAIN;	965	SPAGAIN;
933		966
934	destroy_stacks (aTHX);	967	destroy_stacks (aTHX);
935		968
936	LOAD((&temp)); /* this will get rid of defsv etc.. */	969	LOAD ((&temp)); /* this will get rid of defsv etc.. */
937	SPAGAIN;	970	SPAGAIN;
938		971
939	coro->mainstack = 0;	972	coro->mainstack = 0;
940	}	973	}
941		974
942	deallocate_stack (coro);	975	deallocate_stack (coro);
943		976	SvREFCNT_dec (coro->args);
944	Safefree (coro);	977	Safefree (coro);
945
946	void
947	flush()
948	CODE:
949	#ifdef MAY_FLUSH
950	flush_padlist_cache ();
951	#endif
952		978
953	void	979	void
954	_exit(code)	980	_exit(code)
955	int code	981	int code
956	PROTOTYPE: $	982	PROTOTYPE: $
957	CODE:	983	CODE:
958	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
959	_exit (code);	984	_exit (code);
960	#else
961	signal (SIGTERM, SIG_DFL);
962	raise (SIGTERM);
963	exit (code);
964	#endif
965		985
966	MODULE = Coro::State PACKAGE = Coro::Cont	986	MODULE = Coro::State PACKAGE = Coro::Cont
967		987
968	# this is slightly dirty (should expose a c-level api)	988	# this is slightly dirty (should expose a c-level api)
969		989
970	void	990	void
971	yield(...)	991	yield(...)
972	PROTOTYPE: @	992	PROTOTYPE: @
973	CODE:	993	CODE:
974	static SV *returnstk;	994	SV *yieldstack;
975	SV *sv;	995	SV *sv;
976	AV *defav = GvAV (PL_defgv);	996	AV *defav = GvAV (PL_defgv);
977	struct coro prev, next;	997	struct coro prev, next;
978		998
979	if (!returnstk)	999	yieldstack = *hv_fetch (
980	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1000	(HV *)SvRV (GvSV (coro_current)),
		1001	"yieldstack", sizeof ("yieldstack") - 1,
		1002	0
		1003	);
981		1004
982	/* set up @_ -- ugly */	1005	/* set up @_ -- ugly */
983	av_clear (defav);	1006	av_clear (defav);
984	av_fill (defav, items - 1);	1007	av_fill (defav, items - 1);
985	while (items--)	1008	while (items--)
986	av_store (defav, items, SvREFCNT_inc (ST(items)));	1009	av_store (defav, items, SvREFCNT_inc (ST(items)));
987		1010
988	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
989	sv = av_pop ((AV *)SvRV (returnstk));	1011	sv = av_pop ((AV *)SvRV (yieldstack));
990	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))));
991	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))));
992	SvREFCNT_dec (sv);	1014	SvREFCNT_dec (sv);
993		1015
994	transfer(aTHX_ prev, next, 0);	1016	transfer (aTHX_ prev, next, 0);
995		1017
996	MODULE = Coro::State PACKAGE = Coro	1018	MODULE = Coro::State PACKAGE = Coro
997		1019
998	# this is slightly dirty (should expose a c-level api)	1020	# this is slightly dirty (should expose a c-level api)
999		1021
…		…
1017		1039
1018	{	1040	{
1019	SV *sv = perl_get_sv("Coro::API", 1);	1041	SV *sv = perl_get_sv("Coro::API", 1);
1020		1042
1021	coroapi.schedule = api_schedule;	1043	coroapi.schedule = api_schedule;
		1044	coroapi.cede = api_cede;
1022	coroapi.ready = api_ready;	1045	coroapi.ready = api_ready;
1023	coroapi.nready = &coro_nready;	1046	coroapi.nready = &coro_nready;
1024	coroapi.current = coro_current;	1047	coroapi.current = coro_current;
1025		1048
1026	GCoroAPI = &coroapi;	1049	GCoroAPI = &coroapi;
1027	sv_setiv(sv, (IV)&coroapi);	1050	sv_setiv(sv, (IV)&coroapi);
1028	SvREADONLY_on(sv);	1051	SvREADONLY_on(sv);
1029	}	1052	}
1030	}	1053	}
1031		1054
		1055	#if !PERL_MICRO
		1056
1032	void	1057	void
1033	ready(self)	1058	ready(self)
1034	SV * self	1059	SV * self
		1060	PROTOTYPE: $
1035	CODE:	1061	CODE:
1036	api_ready (self);	1062	api_ready (self);
		1063
		1064	#endif
1037		1065
1038	int	1066	int
1039	nready(...)	1067	nready(...)
1040	PROTOTYPE:	1068	PROTOTYPE:
1041	CODE:	1069	CODE:
…		…
1044	RETVAL	1072	RETVAL
1045		1073
1046	void	1074	void
1047	schedule(...)	1075	schedule(...)
1048	PROTOTYPE:	1076	PROTOTYPE:
1049	ALIAS:
1050	cede = 1
1051	CODE:	1077	CODE:
1052	api_schedule (ix);	1078	api_schedule ();
1053		1079
		1080	void
		1081	cede(...)
		1082	PROTOTYPE:
		1083	CODE:
		1084	api_cede ();
		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 1.29 by root, Sat Aug 25 21:40:34 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 1.29 by root, Sat Aug 25 21:40:34 2001 UTC vs.
Revision 1.77 by root, Tue Oct 31 23:55:33 2006 UTC