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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs.
Revision 1.84 by root, Fri Nov 24 00:31:21 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 "patchlevel.h"	9	#include "patchlevel.h"
6		10
7	#if PATCHLEVEL < 6	11	#if PERL_VERSION < 6
8	# ifndef PL_ppaddr	12	# ifndef PL_ppaddr
9	# define PL_ppaddr ppaddr	13	# define PL_ppaddr ppaddr
10	# endif	14	# endif
11	# ifndef call_sv	15	# ifndef call_sv
12	# define call_sv perl_call_sv	16	# define call_sv perl_call_sv
23	# ifndef IS_PADCONST	27	# ifndef IS_PADCONST
24	# define IS_PADCONST(v) 0	28	# define IS_PADCONST(v) 0
25	# endif	29	# endif
26	#endif	30	#endif
27		31
28	#include "libcoro/coro.c"
29
30	#include <signal.h>	32	#include <errno.h>
		33
		34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		35	# undef STACKGUARD
		36	#endif
		37
		38	#ifndef STACKGUARD
		39	# define STACKGUARD 0
		40	#endif
31		41
32	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
33	# include <unistd.h>	43	# include <unistd.h>
34	# include <sys/mman.h>	44	# include <sys/mman.h>
35	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
…		…
37	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
38	# else	48	# else
39	# undef HAVE_MMAP	49	# undef HAVE_MMAP
40	# endif	50	# endif
41	# endif	51	# endif
		52	# include <limits.h>
		53	# ifndef PAGESIZE
		54	# define PAGESIZE pagesize
		55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
		56	static long pagesize;
		57	# else
		58	# define BOOT_PAGESIZE
42	#endif	59	# endif
43		60	#endif
44	#define MAY_FLUSH /* increases codesize and is rarely used */
45		61
46	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
47	#define UCORO_STATE "_coro_state"	63	#define UCORO_STATE "_coro_state"
48		64
49	/* The next macro should declare a variable stacklevel that contains and approximation	65	/* The next macro should declare a variable stacklevel that contains and approximation
…		…
55		71
56	#define labs(l) ((l) >= 0 ? (l) : -(l))	72	#define labs(l) ((l) >= 0 ? (l) : -(l))
57		73
58	#include "CoroAPI.h"	74	#include "CoroAPI.h"
59		75
		76	#ifdef USE_ITHREADS
		77	static perl_mutex coro_mutex;
		78	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		79	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		80	#else
		81	# define LOCK (void)0
		82	# define UNLOCK (void)0
		83	#endif
		84
60	static struct CoroAPI coroapi;	85	static struct CoroAPI coroapi;
		86	static AV main_mainstack; / used to differentiate between $main and others */
		87	static HV *coro_state_stash;
		88	static SV *ucoro_state_sv;
		89	static U32 ucoro_state_hash;
		90	static SV coro_mortal; / will be freed after next transfer */
61		91
62	/* this is actually not only the c stack but also c registers etc... */	92	/* this is actually not only the c stack but also c registers etc... */
63	typedef struct {	93	typedef struct {
64	int refcnt; /* pointer reference counter */	94	int refcnt; /* pointer reference counter */
65	int usecnt; /* shared by how many coroutines */	95	int usecnt; /* shared by how many coroutines */
…		…
70	void *sptr;	100	void *sptr;
71	long ssize; /* positive == mmap, otherwise malloc */	101	long ssize; /* positive == mmap, otherwise malloc */
72	} coro_stack;	102	} coro_stack;
73		103
74	struct coro {	104	struct coro {
75	/* the top-level JMPENV for each coroutine, needed to catch dies. */
76	JMPENV start_env;
77
78	/* the optional C context */	105	/* the optional C context */
79	coro_stack *stack;	106	coro_stack *stack;
80	void *cursp;	107	void *cursp;
81	int gencnt;	108	int gencnt;
82		109
…		…
95	AV *mainstack;	122	AV *mainstack;
96	SV **stack_sp;	123	SV **stack_sp;
97	OP *op;	124	OP *op;
98	SV **curpad;	125	SV **curpad;
99	AV *comppad;	126	AV *comppad;
		127	CV *compcv;
100	SV **stack_base;	128	SV **stack_base;
101	SV **stack_max;	129	SV **stack_max;
102	SV **tmps_stack;	130	SV **tmps_stack;
103	I32 tmps_floor;	131	I32 tmps_floor;
104	I32 tmps_ix;	132	I32 tmps_ix;
…		…
113	I32 savestack_ix;	141	I32 savestack_ix;
114	I32 savestack_max;	142	I32 savestack_max;
115	OP **retstack;	143	OP **retstack;
116	I32 retstack_ix;	144	I32 retstack_ix;
117	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
118	COP *curcop;	147	COP *curcop;
119	JMPENV *top_env;	148	JMPENV *top_env;
120		149
121	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
122	AV *args;	151	AV *args;
123	};	152	};
124		153
125	typedef struct coro *Coro__State;	154	typedef struct coro *Coro__State;
126	typedef struct coro *Coro__State_or_hashref;	155	typedef struct coro *Coro__State_or_hashref;
127		156
128	static AV main_mainstack; / used to differentiate between $main and others */	157	static AV *
129	static HV *coro_state_stash;	158	coro_clone_padlist (pTHX_ CV *cv)
130	static SV *ucoro_state_sv;
131	static U32 ucoro_state_hash;
132	static HV *padlist_cache;
133	static SV coro_mortal; / will be freed after next transfer */
134
135	/* mostly copied from op.c:cv_clone2 */
136	STATIC AV *
137	clone_padlist (AV *protopadlist)
138	{	159	{
139	AV *av;	160	AV *padlist = CvPADLIST (cv);
140	I32 ix;
141	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
142	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
143	SV **pname = AvARRAY (protopad_name);
144	SV **ppad = AvARRAY (protopad);
145	I32 fname = AvFILLp (protopad_name);
146	I32 fpad = AvFILLp (protopad);
147	AV newpadlist, newpad_name, *newpad;	161	AV newpadlist, newpad;
148	SV **npad;
149
150	newpad_name = newAV ();
151	for (ix = fname; ix >= 0; ix--)
152	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
153
154	newpad = newAV ();
155	av_fill (newpad, AvFILLp (protopad));
156	npad = AvARRAY (newpad);
157		162
158	newpadlist = newAV ();	163	newpadlist = newAV ();
159	AvREAL_off (newpadlist);	164	AvREAL_off (newpadlist);
160	av_store (newpadlist, 0, (SV *) newpad_name);	165	#if PERL_VERSION < 9
		166	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		167	#else
		168	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		169	#endif
		170	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		171	--AvFILLp (padlist);
		172
		173	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
161	av_store (newpadlist, 1, (SV *) newpad);	174	av_store (newpadlist, 1, (SV *)newpad);
162		175
163	av = newAV (); /* will be @_ */	176	return newpadlist;
164	av_extend (av, 0);	177	}
165	av_store (newpad, 0, (SV *) av);
166	AvFLAGS (av) = AVf_REIFY;
167		178
168	for (ix = fpad; ix > 0; ix--)	179	static void
		180	free_padlist (pTHX_ AV *padlist)
		181	{
		182	/* may be during global destruction */
		183	if (SvREFCNT (padlist))
169	{	184	{
170	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	185	I32 i = AvFILLp (padlist);
171	if (namesv && namesv != &PL_sv_undef)	186	while (i >= 0)
172	{	187	{
173	char name = SvPVX (namesv); / XXX */	188	SV **svp = av_fetch (padlist, i--, FALSE);
174	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	189	if (svp)
175	{ /* lexical from outside? */
176	npad[ix] = SvREFCNT_inc (ppad[ix]);
177	}	190	{
178	else
179	{ /* our own lexical */
180	SV *sv;	191	SV *sv;
181	if (*name == '&')	192	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
182	sv = SvREFCNT_inc (ppad[ix]);	193	SvREFCNT_dec (sv);
183	else if (*name == '@')	194
184	sv = (SV *) newAV ();	195	SvREFCNT_dec (*svp);
185	else if (*name == '%')
186	sv = (SV *) newHV ();
187	else
188	sv = NEWSV (0, 0);
189	if (!SvPADBUSY (sv))
190	SvPADMY_on (sv);
191	npad[ix] = sv;
192	}	196	}
193	}	197	}
194	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	198
195	{	199	SvREFCNT_dec ((SV*)padlist);
196	npad[ix] = SvREFCNT_inc (ppad[ix]);
197	}
198	else
199	{
200	SV *sv = NEWSV (0, 0);
201	SvPADTMP_on (sv);
202	npad[ix] = sv;
203	}
204	}	200	}
		201	}
205		202
206	#if 0 /* return -ENOTUNDERSTOOD */	203	static int
207	/* Now that vars are all in place, clone nested closures. */	204	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		205	{
		206	AV *padlist;
		207	AV av = (AV )mg->mg_obj;
208		208
209	for (ix = fpad; ix > 0; ix--) {	209	/* casting is fun. */
210	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	210	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
211	if (namesv	211	free_padlist (aTHX_ padlist);
212	&& namesv != &PL_sv_undef	212
213	&& !(SvFLAGS(namesv) & SVf_FAKE)	213	SvREFCNT_dec (av);
214	&& *SvPVX(namesv) == '&'	214
215	&& CvCLONE(ppad[ix]))	215	return 0;
216	{	216	}
217	CV kid = cv_clone((CV)ppad[ix]);	217
218	SvREFCNT_dec(ppad[ix]);	218	#define PERL_MAGIC_coro PERL_MAGIC_ext
219	CvCLONE_on(kid);	219
220	SvPADMY_on(kid);	220	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221	npad[ix] = (SV*)kid;	221
222	}	222	/* the next two functions merely cache the padlists */
		223	static void
		224	get_padlist (pTHX_ CV *cv)
		225	{
		226	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		227
		228	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
		229	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
		230	else
		231	{
		232	#if 0
		233	/* this should work - but it doesn't :( */
		234	CV *cp = Perl_cv_clone (aTHX_ cv);
		235	CvPADLIST (cv) = CvPADLIST (cp);
		236	CvPADLIST (cp) = 0;
		237	SvREFCNT_dec (cp);
		238	#else
		239	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		240	#endif
		241	}
		242	}
		243
		244	static void
		245	put_padlist (pTHX_ CV *cv)
		246	{
		247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		248
		249	if (!mg)
		250	{
		251	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		252	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		253	mg->mg_virtual = &vtbl_coro;
		254	mg->mg_obj = (SV *)newAV ();
223	}	255	}
224	#endif
225		256
226	return newpadlist;
227	}
228
229	#ifdef MAY_FLUSH
230	STATIC void
231	free_padlist (AV *padlist)
232	{
233	/* may be during global destruction */
234	if (SvREFCNT(padlist))
235	{
236	I32 i = AvFILLp(padlist);
237	while (i >= 0)
238	{
239	SV **svp = av_fetch(padlist, i--, FALSE);
240	SV sv = svp ? svp : Nullsv;
241	if (sv)
242	SvREFCNT_dec(sv);
243	}
244
245	SvREFCNT_dec((SV*)padlist);
246	}
247	}
248	#endif
249
250	/* the next two functions merely cache the padlists */
251	STATIC void
252	get_padlist (CV *cv)
253	{
254	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
255
256	if (he && AvFILLp ((AV )he) >= 0)
257	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
258	else
259	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
260	}
261
262	STATIC void
263	put_padlist (CV *cv)
264	{
265	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
266
267	if (SvTYPE (*he) != SVt_PVAV)
268	{
269	SvREFCNT_dec (*he);
270	he = (SV )newAV ();
271	}
272
273	av_push ((AV )he, (SV *)CvPADLIST (cv));	257	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
274	}	258	}
275
276	#ifdef MAY_FLUSH
277	STATIC void
278	flush_padlist_cache ()
279	{
280	HV *hv = padlist_cache;
281	padlist_cache = newHV ();
282
283	if (hv_iterinit (hv))
284	{
285	HE *he;
286	AV *padlist;
287
288	while (!!(he = hv_iternext (hv)))
289	{
290	AV av = (AV )HeVAL(he);
291
292	/* casting is fun. */
293	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
294	free_padlist (padlist);
295	}
296	}
297
298	SvREFCNT_dec (hv);
299	}
300	#endif
301		259
302	#define SB do {	260	#define SB do {
303	#define SE } while (0)	261	#define SE } while (0)
304		262
305	#define LOAD(state) load_state(aTHX_ (state));	263	#define LOAD(state) load_state(aTHX_ (state));
306	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	264	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
307		265
308	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	266	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
309		267
310	static void	268	static void
311	load_state(pTHX_ Coro__State c)	269	load_state(pTHX_ Coro__State c)
312	{	270	{
313	PL_dowarn = c->dowarn;	271	PL_dowarn = c->dowarn;
…		…
318	PL_mainstack = c->mainstack;	276	PL_mainstack = c->mainstack;
319	PL_stack_sp = c->stack_sp;	277	PL_stack_sp = c->stack_sp;
320	PL_op = c->op;	278	PL_op = c->op;
321	PL_curpad = c->curpad;	279	PL_curpad = c->curpad;
322	PL_comppad = c->comppad;	280	PL_comppad = c->comppad;
		281	PL_compcv = c->compcv;
323	PL_stack_base = c->stack_base;	282	PL_stack_base = c->stack_base;
324	PL_stack_max = c->stack_max;	283	PL_stack_max = c->stack_max;
325	PL_tmps_stack = c->tmps_stack;	284	PL_tmps_stack = c->tmps_stack;
326	PL_tmps_floor = c->tmps_floor;	285	PL_tmps_floor = c->tmps_floor;
327	PL_tmps_ix = c->tmps_ix;	286	PL_tmps_ix = c->tmps_ix;
…		…
333	PL_scopestack_ix = c->scopestack_ix;	292	PL_scopestack_ix = c->scopestack_ix;
334	PL_scopestack_max = c->scopestack_max;	293	PL_scopestack_max = c->scopestack_max;
335	PL_savestack = c->savestack;	294	PL_savestack = c->savestack;
336	PL_savestack_ix = c->savestack_ix;	295	PL_savestack_ix = c->savestack_ix;
337	PL_savestack_max = c->savestack_max;	296	PL_savestack_max = c->savestack_max;
		297	#if PERL_VERSION < 9
338	PL_retstack = c->retstack;	298	PL_retstack = c->retstack;
339	PL_retstack_ix = c->retstack_ix;	299	PL_retstack_ix = c->retstack_ix;
340	PL_retstack_max = c->retstack_max;	300	PL_retstack_max = c->retstack_max;
		301	#endif
		302	PL_curpm = c->curpm;
341	PL_curcop = c->curcop;	303	PL_curcop = c->curcop;
342	PL_top_env = c->top_env;	304	PL_top_env = c->top_env;
343		305
344	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
345	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
354	{	316	{
355	AV padlist = (AV )POPs;	317	AV padlist = (AV )POPs;
356		318
357	if (padlist)	319	if (padlist)
358	{	320	{
359	put_padlist (cv); /* mark this padlist as available */	321	put_padlist (aTHX_ cv); /* mark this padlist as available */
360	CvPADLIST(cv) = padlist;	322	CvPADLIST(cv) = padlist;
361	#ifdef USE_THREADS
362	/CvOWNER(cv) = (struct perl_thread )POPs;*/
363	#endif
364	}	323	}
365		324
366	++CvDEPTH(cv);	325	++CvDEPTH(cv);
367	}	326	}
368		327
…		…
395	if (CxTYPE(cx) == CXt_SUB)	354	if (CxTYPE(cx) == CXt_SUB)
396	{	355	{
397	CV *cv = cx->blk_sub.cv;	356	CV *cv = cx->blk_sub.cv;
398	if (CvDEPTH(cv))	357	if (CvDEPTH(cv))
399	{	358	{
400	#ifdef USE_THREADS
401	/XPUSHs ((SV )CvOWNER(cv));*/
402	/CvOWNER(cv) = 0;/
403	/error must unlock this cv etc.. etc.../
404	#endif
405	EXTEND (SP, CvDEPTH(cv)*2);	359	EXTEND (SP, CvDEPTH(cv)*2);
406		360
407	while (--CvDEPTH(cv))	361	while (--CvDEPTH(cv))
408	{	362	{
409	/* this tells the restore code to increment CvDEPTH */	363	/* this tells the restore code to increment CvDEPTH */
…		…
412	}	366	}
413		367
414	PUSHs ((SV *)CvPADLIST(cv));	368	PUSHs ((SV *)CvPADLIST(cv));
415	PUSHs ((SV *)cv);	369	PUSHs ((SV *)cv);
416		370
417	get_padlist (cv); /* this is a monster */	371	get_padlist (aTHX_ cv);
418	}	372	}
419	}	373	}
420	#ifdef CXt_FORMAT	374	#ifdef CXt_FORMAT
421	else if (CxTYPE(cx) == CXt_FORMAT)	375	else if (CxTYPE(cx) == CXt_FORMAT)
422	{	376	{
…		…
450	c->mainstack = PL_mainstack;	404	c->mainstack = PL_mainstack;
451	c->stack_sp = PL_stack_sp;	405	c->stack_sp = PL_stack_sp;
452	c->op = PL_op;	406	c->op = PL_op;
453	c->curpad = PL_curpad;	407	c->curpad = PL_curpad;
454	c->comppad = PL_comppad;	408	c->comppad = PL_comppad;
		409	c->compcv = PL_compcv;
455	c->stack_base = PL_stack_base;	410	c->stack_base = PL_stack_base;
456	c->stack_max = PL_stack_max;	411	c->stack_max = PL_stack_max;
457	c->tmps_stack = PL_tmps_stack;	412	c->tmps_stack = PL_tmps_stack;
458	c->tmps_floor = PL_tmps_floor;	413	c->tmps_floor = PL_tmps_floor;
459	c->tmps_ix = PL_tmps_ix;	414	c->tmps_ix = PL_tmps_ix;
…		…
465	c->scopestack_ix = PL_scopestack_ix;	420	c->scopestack_ix = PL_scopestack_ix;
466	c->scopestack_max = PL_scopestack_max;	421	c->scopestack_max = PL_scopestack_max;
467	c->savestack = PL_savestack;	422	c->savestack = PL_savestack;
468	c->savestack_ix = PL_savestack_ix;	423	c->savestack_ix = PL_savestack_ix;
469	c->savestack_max = PL_savestack_max;	424	c->savestack_max = PL_savestack_max;
		425	#if PERL_VERSION < 9
470	c->retstack = PL_retstack;	426	c->retstack = PL_retstack;
471	c->retstack_ix = PL_retstack_ix;	427	c->retstack_ix = PL_retstack_ix;
472	c->retstack_max = PL_retstack_max;	428	c->retstack_max = PL_retstack_max;
		429	#endif
		430	c->curpm = PL_curpm;
473	c->curcop = PL_curcop;	431	c->curcop = PL_curcop;
474	c->top_env = PL_top_env;	432	c->top_env = PL_top_env;
475	}	433	}
476		434
477	/*	435	/*
478	* allocate various perl stacks. This is an exact copy	436	* allocate various perl stacks. This is an exact copy
479	* of perl.c:init_stacks, except that it uses less memory	437	* of perl.c:init_stacks, except that it uses less memory
480	* on the assumption that coroutines do not usually need	438	* on the (sometimes correct) assumption that coroutines do
481	* a lot of stackspace.	439	* not usually need a lot of stackspace.
482	*/	440	*/
483	STATIC void	441	static void
484	coro_init_stacks (pTHX)	442	coro_init_stacks (pTHX)
485	{	443	{
		444	LOCK;
		445
486	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	446	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
487	PL_curstackinfo->si_type = PERLSI_MAIN;	447	PL_curstackinfo->si_type = PERLSI_MAIN;
488	PL_curstack = PL_curstackinfo->si_stack;	448	PL_curstack = PL_curstackinfo->si_stack;
489	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	449	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
490		450
…		…
511		471
512	New(54,PL_savestack,96,ANY);	472	New(54,PL_savestack,96,ANY);
513	PL_savestack_ix = 0;	473	PL_savestack_ix = 0;
514	PL_savestack_max = 96;	474	PL_savestack_max = 96;
515		475
		476	#if PERL_VERSION < 9
516	New(54,PL_retstack,8,OP*);	477	New(54,PL_retstack,8,OP*);
517	PL_retstack_ix = 0;	478	PL_retstack_ix = 0;
518	PL_retstack_max = 8;	479	PL_retstack_max = 8;
		480	#endif
		481
		482	UNLOCK;
519	}	483	}
520		484
521	/*	485	/*
522	* destroy the stacks, the callchain etc...	486	* destroy the stacks, the callchain etc...
523	* still there is a memleak of 128 bytes...
524	*/	487	*/
525	STATIC void	488	static void
526	destroy_stacks(pTHX)	489	destroy_stacks(pTHX)
527	{	490	{
528	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
529	{	492	{
530	/* is this ugly, I ask? */	493	/* is this ugly, I ask? */
531	while (PL_scopestack_ix)	494	LEAVE_SCOPE (0);
532	LEAVE;
533		495
534	/* sure it is, but more important: is it correct?? :/ */	496	/* sure it is, but more important: is it correct?? :/ */
535	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
536	FREETMPS;	497	FREETMPS;
		498
		499	/POPSTACK_TO (PL_mainstack);//D//use/
537	}	500	}
538		501
539	while (PL_curstackinfo->si_next)	502	while (PL_curstackinfo->si_next)
540	PL_curstackinfo = PL_curstackinfo->si_next;	503	PL_curstackinfo = PL_curstackinfo->si_next;
541		504
542	while (PL_curstackinfo)	505	while (PL_curstackinfo)
543	{	506	{
544	PERL_SI *p = PL_curstackinfo->si_prev;	507	PERL_SI *p = PL_curstackinfo->si_prev;
545		508
546	{	509	{ /D//remove/
547	dSP;	510	dSP;
548	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	511	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
549	PUTBACK; /* possibly superfluous */	512	PUTBACK; /* possibly superfluous */
550	}	513	}
551		514
552	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
553	{	516	{
554	dounwind(-1);	517	dounwind (-1);/D//remove/
555	SvREFCNT_dec(PL_curstackinfo->si_stack);	518	SvREFCNT_dec (PL_curstackinfo->si_stack);
556	}	519	}
557		520
558	Safefree(PL_curstackinfo->si_cxstack);	521	Safefree (PL_curstackinfo->si_cxstack);
559	Safefree(PL_curstackinfo);	522	Safefree (PL_curstackinfo);
560	PL_curstackinfo = p;	523	PL_curstackinfo = p;
561	}	524	}
562		525
563	Safefree(PL_tmps_stack);	526	Safefree (PL_tmps_stack);
564	Safefree(PL_markstack);	527	Safefree (PL_markstack);
565	Safefree(PL_scopestack);	528	Safefree (PL_scopestack);
566	Safefree(PL_savestack);	529	Safefree (PL_savestack);
		530	#if PERL_VERSION < 9
567	Safefree(PL_retstack);	531	Safefree (PL_retstack);
		532	#endif
568	}	533	}
569		534
570	static void	535	static void
571	allocate_stack (Coro__State ctx, int alloc)	536	allocate_stack (Coro__State ctx, int alloc)
572	{	537	{
…		…
575	New (0, stack, 1, coro_stack);	540	New (0, stack, 1, coro_stack);
576		541
577	stack->refcnt = 1;	542	stack->refcnt = 1;
578	stack->usecnt = 1;	543	stack->usecnt = 1;
579	stack->gencnt = ctx->gencnt = 0;	544	stack->gencnt = ctx->gencnt = 0;
		545
580	if (alloc)	546	if (alloc)
581	{	547	{
582	#if HAVE_MMAP	548	#if HAVE_MMAP
583	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	549	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
584	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	550	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
585	if (stack->sptr == (void *)-1)	551	if (stack->sptr != (void *)-1)
586	#endif
587	{	552	{
588	/FIXME//D//* reasonable stack size! */	553	# if STACKGUARD
		554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		555	# endif
		556	}
		557	else
		558	#endif
		559	{
589	stack->ssize = -4096 * sizeof (long);	560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
590	New (0, stack->sptr, 4096, long);	561	New (0, stack->sptr, STACKSIZE, long);
591	}	562	}
592	}	563	}
593	else	564	else
594	stack->sptr = 0;	565	stack->sptr = 0;
595		566
…		…
609	{	580	{
610	#ifdef HAVE_MMAP	581	#ifdef HAVE_MMAP
611	if (stack->ssize > 0 && stack->sptr)	582	if (stack->ssize > 0 && stack->sptr)
612	munmap (stack->sptr, stack->ssize);	583	munmap (stack->sptr, stack->ssize);
613	else	584	else
614	#else	585	#endif
615	Safefree (stack->sptr);	586	Safefree (stack->sptr);
616	#endif	587
617	Safefree (stack);	588	Safefree (stack);
618	}	589	}
619	else if (ctx->gencnt == stack->gencnt)	590	else if (ctx->gencnt == stack->gencnt)
620	--stack->usecnt;	591	--stack->usecnt;
621	}	592	}
…		…
625	setup_coro (void *arg)	596	setup_coro (void *arg)
626	{	597	{
627	/*	598	/*
628	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
629	*/	600	*/
		601	dTHX;
630	dSP;	602	dSP;
631	Coro__State ctx = (Coro__State)arg;	603	Coro__State ctx = (Coro__State)arg;
632	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
633		605
634	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
635	/PL_curcop = 0;/	607	/PL_curcop = 0;/
636	/PL_in_eval = PL_in_eval;/ /* inherit */	608	/PL_in_eval = PL_in_eval;/ /* inherit */
637	SvREFCNT_dec (GvAV (PL_defgv));	609	SvREFCNT_dec (GvAV (PL_defgv));
638	GvAV (PL_defgv) = ctx->args;	610	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
639		611
640	SPAGAIN;	612	SPAGAIN;
641		613
642	if (ctx->stack)	614	if (ctx->stack)
643	{	615	{
…		…
654	}	626	}
655	else	627	else
656	{	628	{
657	UNOP myop;	629	UNOP myop;
658		630
659	PL_op = (OP *)&myop;
660
661	Zero(&myop, 1, UNOP);	631	Zero(&myop, 1, UNOP);
662	myop.op_next = Nullop;	632	myop.op_next = Nullop;
663	myop.op_flags = OPf_WANT_VOID;	633	myop.op_flags = OPf_WANT_VOID;
		634
		635	PL_op = (OP *)&myop;
664		636
665	PUSHMARK(SP);	637	PUSHMARK(SP);
666	XPUSHs (sub_init);	638	XPUSHs (sub_init);
667	/*	639	/*
668	* the next line is slightly wrong, as PL_op->op_next	640	* the next line is slightly wrong, as PL_op->op_next
…		…
683	continue_coro (void *arg)	655	continue_coro (void *arg)
684	{	656	{
685	/*	657	/*
686	* this is a _very_ stripped down perl interpreter ;)	658	* this is a _very_ stripped down perl interpreter ;)
687	*/	659	*/
		660	dTHX;
688	Coro__State ctx = (Coro__State)arg;	661	Coro__State ctx = (Coro__State)arg;
689	JMPENV coro_start_env;
690		662
691	PL_top_env = &ctx->start_env;	663	PL_top_env = &PL_start_env;
692		664
693	ctx->cursp = 0;	665	ctx->cursp = 0;
694	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
695	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
696		668
697	abort ();	669	abort ();
698	}	670	}
699		671
700	STATIC void	672	/* never call directly, always through the coro_state_transfer global variable */
		673	static void
701	transfer(pTHX_ struct coro prev, struct coro next, int flags)	674	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
702	{	675	{
703	dSTACKLEVEL;	676	dSTACKLEVEL;
704	static struct coro *xnext;
705		677
706	if (prev != next)	678	if (prev != next)
707	{	679	{
708	xnext = next;	680	/* has this coro been created yet? */
709
710	if (next->mainstack)	681	if (next->mainstack)
711	{	682	{
		683	LOCK;
712	SAVE (prev, flags);	684	SAVE (prev, flags);
713	LOAD (next);	685	LOAD (next);
		686	UNLOCK;
714		687
715	/* mark this state as in-use */	688	/* mark this state as in-use */
716	next->mainstack = 0;	689	next->mainstack = 0;
717	next->tmps_ix = -2;	690	next->tmps_ix = -2;
718		691
…		…
737	continue_coro, (void *)next,	710	continue_coro, (void *)next,
738	next->stack->sptr, labs (next->stack->ssize));	711	next->stack->sptr, labs (next->stack->ssize));
739	}	712	}
740		713
741	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		715	prev->cursp = stacklevel;
742	/* don't add any code here */	716	/* don't add any code here */
743	}	717	}
744		718	else
		719	next->cursp = stacklevel;
745	}	720	}
746	else if (next->tmps_ix == -2)	721	else if (next->tmps_ix == -2)
747	croak ("tried to transfer to running coroutine");	722	croak ("tried to transfer to running coroutine");
748	else	723	else
749	{	724	{
		725	LOCK;
750	SAVE (prev, -1); /* first get rid of the old state */	726	SAVE (prev, -1); /* first get rid of the old state */
		727	UNLOCK;
751		728
		729	/* create the coroutine for the first time */
752	if (flags & TRANSFER_SAVE_CCTXT)	730	if (flags & TRANSFER_SAVE_CCTXT)
753	{	731	{
754	if (!prev->stack)	732	if (!prev->stack)
755	allocate_stack (prev, 0);	733	allocate_stack (prev, 0);
756		734
		735	/* the new coroutine starts with start_env again */
		736	PL_top_env = &PL_start_env;
		737
757	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	738	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
758	{	739	{
759	PL_top_env = &next->start_env;
760
761	setup_coro (next);	740	setup_coro (next);
		741	next->cursp = stacklevel;
762		742
763	prev->stack->refcnt++;	743	prev->stack->refcnt++;
764	prev->stack->usecnt++;	744	prev->stack->usecnt++;
765	next->stack = prev->stack;	745	next->stack = prev->stack;
766	next->gencnt = prev->gencnt;	746	next->gencnt = prev->gencnt;
767	}	747	}
768	else	748	else
769	{	749	{
		750	assert (!next->stack);
770	allocate_stack (next, 1);	751	allocate_stack (next, 1);
771	coro_create (&(next->stack->cctx),	752	coro_create (&(next->stack->cctx),
772	setup_coro, (void *)next,	753	setup_coro, (void *)next,
773	next->stack->sptr, labs (next->stack->ssize));	754	next->stack->sptr, labs (next->stack->ssize));
774	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	755	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		756	prev->cursp = stacklevel;
775	/* don't add any code here */	757	/* don't add any code here */
776	}	758	}
777	}	759	}
778	else	760	else
		761	{
779	setup_coro (next);	762	setup_coro (next);
		763	next->cursp = stacklevel;
		764	}
780	}	765	}
781
782	/*
783	* xnext is now either prev or next, depending on wether
784	* we switched the c stack or not. that's why I use a global
785	* variable, that should become thread-specific at one point.
786	*/
787	xnext->cursp = stacklevel;
788	}	766	}
789		767
		768	LOCK;
790	if (coro_mortal)	769	if (coro_mortal)
791	{	770	{
792	SvREFCNT_dec (coro_mortal);	771	SvREFCNT_dec (coro_mortal);
793	coro_mortal = 0;	772	coro_mortal = 0;
794	}	773	}
		774	UNLOCK;
795	}	775	}
		776
		777	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
796		778
797	#define SV_CORO(sv,func) \	779	#define SV_CORO(sv,func) \
798	do { \	780	do { \
799	if (SvROK (sv)) \	781	if (SvROK (sv)) \
800	sv = SvRV (sv); \	782	sv = SvRV (sv); \
801	\	783	\
802	if (SvTYPE(sv) == SVt_PVHV) \	784	if (SvTYPE (sv) == SVt_PVHV) \
803	{ \	785	{ \
804	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	786	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
805	\	787	\
806	if (!he) \	788	if (!he) \
807	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	789	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
808	\	790	\
809	(sv) = SvRV (HeVAL(he)); \	791	(sv) = SvRV (HeVAL(he)); \
810	} \	792	} \
811	\	793	\
812	/* must also be changed inside Coro::Cont::yield */ \	794	/* must also be changed inside Coro::Cont::yield */ \
813	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	795	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
814	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	796	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
815	\	797	\
816	} while(0)	798	} while(0)
817		799
818	#define SvSTATE(sv) (struct coro *)SvIV (sv)	800	#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
819		801
820	static void	802	static void
821	api_transfer(pTHX_ SV prev, SV next, int flags)	803	api_transfer (pTHX_ SV prev, SV next, int flags)
822	{	804	{
823	SV_CORO (prev, "Coro::transfer");	805	SV_CORO (prev, "Coro::transfer");
824	SV_CORO (next, "Coro::transfer");	806	SV_CORO (next, "Coro::transfer");
825		807
826	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	808	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
827	}	809	}
828		810
829	/ Coro ******************************************************************/	811	/ Coro ******************************************************************/
830		812
831	#define PRIO_MAX 3	813	#define PRIO_MAX 3
…		…
835	#define PRIO_IDLE -3	817	#define PRIO_IDLE -3
836	#define PRIO_MIN -4	818	#define PRIO_MIN -4
837		819
838	/* for Coro.pm */	820	/* for Coro.pm */
839	static GV coro_current, coro_idle;	821	static GV coro_current, coro_idle;
840	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	822	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
841	static int coro_nready;	823	static int coro_nready;
842		824
843	static void	825	static void
844	coro_enq (SV *sv)	826	coro_enq (pTHX_ SV *sv)
845	{	827	{
		828	SV **xprio;
		829	int prio;
		830
846	if (SvTYPE (sv) == SVt_PVHV)	831	if (SvTYPE (sv) != SVt_PVHV)
847	{
848	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
849	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
850
851	prio = prio > PRIO_MAX ? PRIO_MAX
852	: prio < PRIO_MIN ? PRIO_MIN
853	: prio;
854
855	av_push (coro_ready [prio - PRIO_MIN], sv);
856	coro_nready++;
857
858	return;
859	}
860
861	croak ("Coro::ready tried to enqueue something that is not a coroutine");	832	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		833
		834	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		835	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		836
		837	prio = prio > PRIO_MAX ? PRIO_MAX
		838	: prio < PRIO_MIN ? PRIO_MIN
		839	: prio;
		840
		841	av_push (coro_ready [prio - PRIO_MIN], sv);
		842	coro_nready++;
862	}	843	}
863		844
864	static SV *	845	static SV *
865	coro_deq (int min_prio)	846	coro_deq (pTHX_ int min_prio)
866	{	847	{
867	int prio = PRIO_MAX - PRIO_MIN;	848	int prio = PRIO_MAX - PRIO_MIN;
868		849
869	min_prio -= PRIO_MIN;	850	min_prio -= PRIO_MIN;
870	if (min_prio < 0)	851	if (min_prio < 0)
871	min_prio = 0;	852	min_prio = 0;
872		853
873	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	854	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
874	if (av_len (coro_ready[prio]) >= 0)	855	if (AvFILLp (coro_ready [prio]) >= 0)
875	{	856	{
876	coro_nready--;	857	coro_nready--;
877	return av_shift (coro_ready[prio]);	858	return av_shift (coro_ready [prio]);
878	}	859	}
879		860
880	return 0;	861	return 0;
881	}	862	}
882		863
883	static void	864	static void
884	api_ready (SV *coro)	865	api_ready (SV *coro)
885	{	866	{
		867	dTHX;
		868
886	if (SvROK (coro))	869	if (SvROK (coro))
887	coro = SvRV (coro);	870	coro = SvRV (coro);
888		871
		872	LOCK;
889	coro_enq (SvREFCNT_inc (coro));	873	coro_enq (aTHX_ SvREFCNT_inc (coro));
		874	UNLOCK;
890	}	875	}
891		876
892	static void	877	static void
893	api_schedule (void)	878	api_schedule (void)
894	{	879	{
		880	dTHX;
		881
895	SV prev, next;	882	SV prev, next;
896		883
		884	LOCK;
		885
897	prev = SvRV (GvSV (coro_current));	886	prev = SvRV (GvSV (coro_current));
898	next = coro_deq (PRIO_MIN);	887	next = coro_deq (aTHX_ PRIO_MIN);
899		888
900	if (!next)	889	if (!next)
901	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	890	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
902		891
903	/* free this only after the transfer */	892	/* free this only after the transfer */
…		…
906		895
907	SvRV (GvSV (coro_current)) = next;	896	SvRV (GvSV (coro_current)) = next;
908		897
909	SV_CORO (next, "Coro::schedule");	898	SV_CORO (next, "Coro::schedule");
910		899
		900	UNLOCK;
		901
911	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	902	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
912	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	903	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
913	}	904	}
914		905
915	static void	906	static void
916	api_cede (void)	907	api_cede (void)
917	{	908	{
		909	dTHX;
		910
		911	LOCK;
918	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	912	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		913	UNLOCK;
919		914
920	api_schedule ();	915	api_schedule ();
921	}	916	}
922		917
923	MODULE = Coro::State PACKAGE = Coro::State	918	MODULE = Coro::State PACKAGE = Coro::State
924		919
925	PROTOTYPES: ENABLE	920	PROTOTYPES: ENABLE
926		921
927	BOOT:	922	BOOT:
928	{ /* {} necessary for stoopid perl-5.6.x */	923	{ /* {} necessary for stoopid perl-5.6.x */
		924	#ifdef USE_ITHREADS
		925	MUTEX_INIT (&coro_mutex);
		926	#endif
		927	BOOT_PAGESIZE;
		928
929	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	929	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
930	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	930	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
931	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	931	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
932		932
933	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	933	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
934	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	934	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
935	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	935	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
936	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	936	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
937
938	if (!padlist_cache)
939	padlist_cache = newHV ();
940		937
941	main_mainstack = PL_mainstack;	938	main_mainstack = PL_mainstack;
942		939
943	coroapi.ver = CORO_API_VERSION;	940	coroapi.ver = CORO_API_VERSION;
944	coroapi.transfer = api_transfer;	941	coroapi.transfer = api_transfer;
…		…
952	Coro__State coro;	949	Coro__State coro;
953		950
954	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	951	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
955	croak ("Coro::State::_newprocess expects an arrayref");	952	croak ("Coro::State::_newprocess expects an arrayref");
956		953
957	New (0, coro, 1, struct coro);	954	Newz (0, coro, 1, struct coro);
958		955
959	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	956	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
960	coro->mainstack = 0; /* actual work is done inside transfer */	957	/coro->mainstack = 0; //actual work is done inside transfer /
961	coro->stack = 0;	958	/coro->stack = 0;/
962
963	/* same as JMPENV_BOOTSTRAP */
964	/* we might be able to recycle start_env, but safe is safe */
965	Zero(&coro->start_env, 1, JMPENV);
966	coro->start_env.je_ret = -1;
967	coro->start_env.je_mustcatch = TRUE;
968		959
969	RETVAL = coro;	960	RETVAL = coro;
970	OUTPUT:	961	OUTPUT:
971	RETVAL	962	RETVAL
972		963
…		…
978	PROTOTYPE: @	969	PROTOTYPE: @
979	CODE:	970	CODE:
980	PUTBACK;	971	PUTBACK;
981	SV_CORO (next, "Coro::transfer");	972	SV_CORO (next, "Coro::transfer");
982	SV_CORO (prev, "Coro::transfer");	973	SV_CORO (prev, "Coro::transfer");
983	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	974	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
984	SPAGAIN;	975	SPAGAIN;
985		976
986	void	977	void
987	DESTROY(coro)	978	DESTROY(coro)
988	Coro::State coro	979	Coro::State coro
…		…
991	if (coro->mainstack && coro->mainstack != main_mainstack)	982	if (coro->mainstack && coro->mainstack != main_mainstack)
992	{	983	{
993	struct coro temp;	984	struct coro temp;
994		985
995	PUTBACK;	986	PUTBACK;
996	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	987	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
997	LOAD(aTHX_ coro);	988	LOAD (aTHX_ coro);
998	SPAGAIN;	989	SPAGAIN;
999		990
1000	destroy_stacks (aTHX);	991	destroy_stacks (aTHX);
1001		992
1002	LOAD((&temp)); /* this will get rid of defsv etc.. */	993	LOAD ((&temp)); /* this will get rid of defsv etc.. */
1003	SPAGAIN;	994	SPAGAIN;
1004		995
1005	coro->mainstack = 0;	996	coro->mainstack = 0;
1006	}	997	}
1007		998
1008	deallocate_stack (coro);	999	deallocate_stack (coro);
1009		1000	SvREFCNT_dec (coro->args);
1010	Safefree (coro);	1001	Safefree (coro);
1011
1012	void
1013	flush()
1014	CODE:
1015	#ifdef MAY_FLUSH
1016	flush_padlist_cache ();
1017	#endif
1018		1002
1019	void	1003	void
1020	_exit(code)	1004	_exit(code)
1021	int code	1005	int code
1022	PROTOTYPE: $	1006	PROTOTYPE: $
1023	CODE:	1007	CODE:
1024	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
1025	_exit (code);	1008	_exit (code);
1026	#else
1027	signal (SIGTERM, SIG_DFL);
1028	raise (SIGTERM);
1029	exit (code);
1030	#endif
1031		1009
1032	MODULE = Coro::State PACKAGE = Coro::Cont	1010	MODULE = Coro::State PACKAGE = Coro::Cont
1033
1034	# this is slightly dirty (should expose a c-level api)
1035		1011
1036	void	1012	void
1037	yield(...)	1013	yield(...)
1038	PROTOTYPE: @	1014	PROTOTYPE: @
1039	CODE:	1015	CODE:
1040	static SV *returnstk;	1016	SV *yieldstack;
1041	SV *sv;	1017	SV *sv;
1042	AV *defav = GvAV (PL_defgv);	1018	AV *defav = GvAV (PL_defgv);
1043	struct coro prev, next;	1019	struct coro prev, next;
1044		1020
1045	if (!returnstk)	1021	yieldstack = *hv_fetch (
1046	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));	1022	(HV *)SvRV (GvSV (coro_current)),
		1023	"yieldstack", sizeof ("yieldstack") - 1,
		1024	0
		1025	);
1047		1026
1048	/* set up @_ -- ugly */	1027	/* set up @_ -- ugly */
1049	av_clear (defav);	1028	av_clear (defav);
1050	av_fill (defav, items - 1);	1029	av_fill (defav, items - 1);
1051	while (items--)	1030	while (items--)
1052	av_store (defav, items, SvREFCNT_inc (ST(items)));	1031	av_store (defav, items, SvREFCNT_inc (ST(items)));
1053		1032
1054	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1055	sv = av_pop ((AV *)SvRV (returnstk));	1033	sv = av_pop ((AV *)SvRV (yieldstack));
1056	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1034	prev = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 0, 0)));
1057	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1035	next = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 1, 0)));
1058	SvREFCNT_dec (sv);	1036	SvREFCNT_dec (sv);
1059		1037
1060	transfer(aTHX_ prev, next, 0);	1038	coro_state_transfer (aTHX_ prev, next, 0);
1061		1039
1062	MODULE = Coro::State PACKAGE = Coro	1040	MODULE = Coro::State PACKAGE = Coro
1063
1064	# this is slightly dirty (should expose a c-level api)
1065		1041
1066	BOOT:	1042	BOOT:
1067	{	1043	{
1068	int i;	1044	int i;
1069	HV *stash = gv_stashpv ("Coro", TRUE);	1045	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1089	coroapi.ready = api_ready;	1065	coroapi.ready = api_ready;
1090	coroapi.nready = &coro_nready;	1066	coroapi.nready = &coro_nready;
1091	coroapi.current = coro_current;	1067	coroapi.current = coro_current;
1092		1068
1093	GCoroAPI = &coroapi;	1069	GCoroAPI = &coroapi;
1094	sv_setiv(sv, (IV)&coroapi);	1070	sv_setiv (sv, (IV)&coroapi);
1095	SvREADONLY_on(sv);	1071	SvREADONLY_on (sv);
1096	}	1072	}
1097	}	1073	}
		1074
		1075	#if !PERL_MICRO
1098		1076
1099	void	1077	void
1100	ready(self)	1078	ready(self)
1101	SV * self	1079	SV * self
1102	PROTOTYPE: $	1080	PROTOTYPE: $
1103	CODE:	1081	CODE:
1104	api_ready (self);	1082	api_ready (self);
		1083
		1084	#endif
1105		1085
1106	int	1086	int
1107	nready(...)	1087	nready(...)
1108	PROTOTYPE:	1088	PROTOTYPE:
1109	CODE:	1089	CODE:
…		…
1121	cede(...)	1101	cede(...)
1122	PROTOTYPE:	1102	PROTOTYPE:
1123	CODE:	1103	CODE:
1124	api_cede ();	1104	api_cede ();
1125		1105
		1106	# and these are hacks
		1107	SV *
		1108	_aio_get_state ()
		1109	CODE:
		1110	{
		1111	struct {
		1112	int errorno;
		1113	int laststype;
		1114	int laststatval;
		1115	Stat_t statcache;
		1116	} data;
		1117
		1118	data.errorno = errno;
		1119	data.laststype = PL_laststype;
		1120	data.laststatval = PL_laststatval;
		1121	data.statcache = PL_statcache;
		1122
		1123	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1124	}
		1125	OUTPUT:
		1126	RETVAL
		1127
		1128	void
		1129	_aio_set_state (char *data_)
		1130	PROTOTYPE: $
		1131	CODE:
		1132	{
		1133	struct {
		1134	int errorno;
		1135	int laststype;
		1136	int laststatval;
		1137	Stat_t statcache;
		1138	} data = (void )data_;
		1139
		1140	errno = data->errorno;
		1141	PL_laststype = data->laststype;
		1142	PL_laststatval = data->laststatval;
		1143	PL_statcache = data->statcache;
		1144	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs. Revision 1.84 by root, Fri Nov 24 00:31:21 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs.
Revision 1.84 by root, Fri Nov 24 00:31:21 2006 UTC