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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.49 by pcg, Sun Nov 23 03:34:13 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	#ifdef SvPADBUSY
190	if (!SvPADBUSY (sv))
191	#endif
192	SvPADMY_on (sv);
193	npad[ix] = sv;
194	}	196	}
195	}	197	}
196	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	198
197	{	199	SvREFCNT_dec ((SV*)padlist);
198	npad[ix] = SvREFCNT_inc (ppad[ix]);
199	}
200	else
201	{
202	SV *sv = NEWSV (0, 0);
203	SvPADTMP_on (sv);
204	npad[ix] = sv;
205	}
206	}	200	}
		201	}
207		202
208	#if 0 /* return -ENOTUNDERSTOOD */	203	static int
209	/* 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;
210		208
211	for (ix = fpad; ix > 0; ix--) {	209	/* casting is fun. */
212	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	210	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
213	if (namesv	211	free_padlist (aTHX_ padlist);
214	&& namesv != &PL_sv_undef	212
215	&& !(SvFLAGS(namesv) & SVf_FAKE)	213	SvREFCNT_dec (av);
216	&& *SvPVX(namesv) == '&'	214
217	&& CvCLONE(ppad[ix]))	215	return 0;
218	{	216	}
219	CV kid = cv_clone((CV)ppad[ix]);	217
220	SvREFCNT_dec(ppad[ix]);	218	#define PERL_MAGIC_coro PERL_MAGIC_ext
221	CvCLONE_on(kid);	219
222	SvPADMY_on(kid);	220	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
223	npad[ix] = (SV*)kid;	221
224	}	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 ();
225	}	255	}
226	#endif
227		256
228	return newpadlist;
229	}
230
231	#ifdef MAY_FLUSH
232	STATIC void
233	free_padlist (AV *padlist)
234	{
235	/* may be during global destruction */
236	if (SvREFCNT(padlist))
237	{
238	I32 i = AvFILLp(padlist);
239	while (i >= 0)
240	{
241	SV **svp = av_fetch(padlist, i--, FALSE);
242	SV sv = svp ? svp : Nullsv;
243	if (sv)
244	SvREFCNT_dec(sv);
245	}
246
247	SvREFCNT_dec((SV*)padlist);
248	}
249	}
250	#endif
251
252	/* the next two functions merely cache the padlists */
253	STATIC void
254	get_padlist (CV *cv)
255	{
256	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
257
258	if (he && AvFILLp ((AV )he) >= 0)
259	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
260	else
261	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
262	}
263
264	STATIC void
265	put_padlist (CV *cv)
266	{
267	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
268
269	if (SvTYPE (*he) != SVt_PVAV)
270	{
271	SvREFCNT_dec (*he);
272	he = (SV )newAV ();
273	}
274
275	av_push ((AV )he, (SV *)CvPADLIST (cv));	257	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
276	}	258	}
277
278	#ifdef MAY_FLUSH
279	STATIC void
280	flush_padlist_cache ()
281	{
282	HV *hv = padlist_cache;
283	padlist_cache = newHV ();
284
285	if (hv_iterinit (hv))
286	{
287	HE *he;
288	AV *padlist;
289
290	while (!!(he = hv_iternext (hv)))
291	{
292	AV av = (AV )HeVAL(he);
293
294	/* casting is fun. */
295	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
296	free_padlist (padlist);
297	}
298	}
299
300	SvREFCNT_dec (hv);
301	}
302	#endif
303		259
304	#define SB do {	260	#define SB do {
305	#define SE } while (0)	261	#define SE } while (0)
306		262
307	#define LOAD(state) load_state(aTHX_ (state));	263	#define LOAD(state) load_state(aTHX_ (state));
…		…
320	PL_mainstack = c->mainstack;	276	PL_mainstack = c->mainstack;
321	PL_stack_sp = c->stack_sp;	277	PL_stack_sp = c->stack_sp;
322	PL_op = c->op;	278	PL_op = c->op;
323	PL_curpad = c->curpad;	279	PL_curpad = c->curpad;
324	PL_comppad = c->comppad;	280	PL_comppad = c->comppad;
		281	PL_compcv = c->compcv;
325	PL_stack_base = c->stack_base;	282	PL_stack_base = c->stack_base;
326	PL_stack_max = c->stack_max;	283	PL_stack_max = c->stack_max;
327	PL_tmps_stack = c->tmps_stack;	284	PL_tmps_stack = c->tmps_stack;
328	PL_tmps_floor = c->tmps_floor;	285	PL_tmps_floor = c->tmps_floor;
329	PL_tmps_ix = c->tmps_ix;	286	PL_tmps_ix = c->tmps_ix;
…		…
335	PL_scopestack_ix = c->scopestack_ix;	292	PL_scopestack_ix = c->scopestack_ix;
336	PL_scopestack_max = c->scopestack_max;	293	PL_scopestack_max = c->scopestack_max;
337	PL_savestack = c->savestack;	294	PL_savestack = c->savestack;
338	PL_savestack_ix = c->savestack_ix;	295	PL_savestack_ix = c->savestack_ix;
339	PL_savestack_max = c->savestack_max;	296	PL_savestack_max = c->savestack_max;
		297	#if PERL_VERSION < 9
340	PL_retstack = c->retstack;	298	PL_retstack = c->retstack;
341	PL_retstack_ix = c->retstack_ix;	299	PL_retstack_ix = c->retstack_ix;
342	PL_retstack_max = c->retstack_max;	300	PL_retstack_max = c->retstack_max;
		301	#endif
		302	PL_curpm = c->curpm;
343	PL_curcop = c->curcop;	303	PL_curcop = c->curcop;
344	PL_top_env = c->top_env;	304	PL_top_env = c->top_env;
345		305
346	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
347	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
356	{	316	{
357	AV padlist = (AV )POPs;	317	AV padlist = (AV )POPs;
358		318
359	if (padlist)	319	if (padlist)
360	{	320	{
361	put_padlist (cv); /* mark this padlist as available */	321	put_padlist (aTHX_ cv); /* mark this padlist as available */
362	CvPADLIST(cv) = padlist;	322	CvPADLIST(cv) = padlist;
363	#ifdef USE_THREADS
364	/CvOWNER(cv) = (struct perl_thread )POPs;*/
365	#endif
366	}	323	}
367		324
368	++CvDEPTH(cv);	325	++CvDEPTH(cv);
369	}	326	}
370		327
…		…
397	if (CxTYPE(cx) == CXt_SUB)	354	if (CxTYPE(cx) == CXt_SUB)
398	{	355	{
399	CV *cv = cx->blk_sub.cv;	356	CV *cv = cx->blk_sub.cv;
400	if (CvDEPTH(cv))	357	if (CvDEPTH(cv))
401	{	358	{
402	#ifdef USE_THREADS
403	/XPUSHs ((SV )CvOWNER(cv));*/
404	/CvOWNER(cv) = 0;/
405	/error must unlock this cv etc.. etc.../
406	#endif
407	EXTEND (SP, CvDEPTH(cv)*2);	359	EXTEND (SP, CvDEPTH(cv)*2);
408		360
409	while (--CvDEPTH(cv))	361	while (--CvDEPTH(cv))
410	{	362	{
411	/* this tells the restore code to increment CvDEPTH */	363	/* this tells the restore code to increment CvDEPTH */
…		…
414	}	366	}
415		367
416	PUSHs ((SV *)CvPADLIST(cv));	368	PUSHs ((SV *)CvPADLIST(cv));
417	PUSHs ((SV *)cv);	369	PUSHs ((SV *)cv);
418		370
419	get_padlist (cv); /* this is a monster */	371	get_padlist (aTHX_ cv);
420	}	372	}
421	}	373	}
422	#ifdef CXt_FORMAT	374	#ifdef CXt_FORMAT
423	else if (CxTYPE(cx) == CXt_FORMAT)	375	else if (CxTYPE(cx) == CXt_FORMAT)
424	{	376	{
…		…
452	c->mainstack = PL_mainstack;	404	c->mainstack = PL_mainstack;
453	c->stack_sp = PL_stack_sp;	405	c->stack_sp = PL_stack_sp;
454	c->op = PL_op;	406	c->op = PL_op;
455	c->curpad = PL_curpad;	407	c->curpad = PL_curpad;
456	c->comppad = PL_comppad;	408	c->comppad = PL_comppad;
		409	c->compcv = PL_compcv;
457	c->stack_base = PL_stack_base;	410	c->stack_base = PL_stack_base;
458	c->stack_max = PL_stack_max;	411	c->stack_max = PL_stack_max;
459	c->tmps_stack = PL_tmps_stack;	412	c->tmps_stack = PL_tmps_stack;
460	c->tmps_floor = PL_tmps_floor;	413	c->tmps_floor = PL_tmps_floor;
461	c->tmps_ix = PL_tmps_ix;	414	c->tmps_ix = PL_tmps_ix;
…		…
467	c->scopestack_ix = PL_scopestack_ix;	420	c->scopestack_ix = PL_scopestack_ix;
468	c->scopestack_max = PL_scopestack_max;	421	c->scopestack_max = PL_scopestack_max;
469	c->savestack = PL_savestack;	422	c->savestack = PL_savestack;
470	c->savestack_ix = PL_savestack_ix;	423	c->savestack_ix = PL_savestack_ix;
471	c->savestack_max = PL_savestack_max;	424	c->savestack_max = PL_savestack_max;
		425	#if PERL_VERSION < 9
472	c->retstack = PL_retstack;	426	c->retstack = PL_retstack;
473	c->retstack_ix = PL_retstack_ix;	427	c->retstack_ix = PL_retstack_ix;
474	c->retstack_max = PL_retstack_max;	428	c->retstack_max = PL_retstack_max;
		429	#endif
		430	c->curpm = PL_curpm;
475	c->curcop = PL_curcop;	431	c->curcop = PL_curcop;
476	c->top_env = PL_top_env;	432	c->top_env = PL_top_env;
477	}	433	}
478		434
479	/*	435	/*
480	* allocate various perl stacks. This is an exact copy	436	* allocate various perl stacks. This is an exact copy
481	* of perl.c:init_stacks, except that it uses less memory	437	* of perl.c:init_stacks, except that it uses less memory
482	* on the assumption that coroutines do not usually need	438	* on the (sometimes correct) assumption that coroutines do
483	* a lot of stackspace.	439	* not usually need a lot of stackspace.
484	*/	440	*/
485	STATIC void	441	static void
486	coro_init_stacks (pTHX)	442	coro_init_stacks (pTHX)
487	{	443	{
		444	LOCK;
		445
488	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	446	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
489	PL_curstackinfo->si_type = PERLSI_MAIN;	447	PL_curstackinfo->si_type = PERLSI_MAIN;
490	PL_curstack = PL_curstackinfo->si_stack;	448	PL_curstack = PL_curstackinfo->si_stack;
491	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	449	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
492		450
…		…
513		471
514	New(54,PL_savestack,96,ANY);	472	New(54,PL_savestack,96,ANY);
515	PL_savestack_ix = 0;	473	PL_savestack_ix = 0;
516	PL_savestack_max = 96;	474	PL_savestack_max = 96;
517		475
		476	#if PERL_VERSION < 9
518	New(54,PL_retstack,8,OP*);	477	New(54,PL_retstack,8,OP*);
519	PL_retstack_ix = 0;	478	PL_retstack_ix = 0;
520	PL_retstack_max = 8;	479	PL_retstack_max = 8;
		480	#endif
		481
		482	UNLOCK;
521	}	483	}
522		484
523	/*	485	/*
524	* destroy the stacks, the callchain etc...	486	* destroy the stacks, the callchain etc...
525	*/	487	*/
526	STATIC void	488	static void
527	destroy_stacks(pTHX)	489	destroy_stacks(pTHX)
528	{	490	{
529	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
530	{	492	{
531	/* is this ugly, I ask? */	493	/* is this ugly, I ask? */
532	while (PL_scopestack_ix)	494	LEAVE_SCOPE (0);
533	LEAVE;
534		495
535	/* sure it is, but more important: is it correct?? :/ */	496	/* sure it is, but more important: is it correct?? :/ */
536	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
537	FREETMPS;	497	FREETMPS;
		498
		499	/POPSTACK_TO (PL_mainstack);//D//use/
538	}	500	}
539		501
540	while (PL_curstackinfo->si_next)	502	while (PL_curstackinfo->si_next)
541	PL_curstackinfo = PL_curstackinfo->si_next;	503	PL_curstackinfo = PL_curstackinfo->si_next;
542		504
543	while (PL_curstackinfo)	505	while (PL_curstackinfo)
544	{	506	{
545	PERL_SI *p = PL_curstackinfo->si_prev;	507	PERL_SI *p = PL_curstackinfo->si_prev;
546		508
547	{	509	{ /D//remove/
548	dSP;	510	dSP;
549	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	511	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
550	PUTBACK; /* possibly superfluous */	512	PUTBACK; /* possibly superfluous */
551	}	513	}
552		514
553	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
554	{	516	{
555	dounwind(-1);	517	dounwind (-1);/D//remove/
556	SvREFCNT_dec(PL_curstackinfo->si_stack);	518	SvREFCNT_dec (PL_curstackinfo->si_stack);
557	}	519	}
558		520
559	Safefree(PL_curstackinfo->si_cxstack);	521	Safefree (PL_curstackinfo->si_cxstack);
560	Safefree(PL_curstackinfo);	522	Safefree (PL_curstackinfo);
561	PL_curstackinfo = p;	523	PL_curstackinfo = p;
562	}	524	}
563		525
564	Safefree(PL_tmps_stack);	526	Safefree (PL_tmps_stack);
565	Safefree(PL_markstack);	527	Safefree (PL_markstack);
566	Safefree(PL_scopestack);	528	Safefree (PL_scopestack);
567	Safefree(PL_savestack);	529	Safefree (PL_savestack);
		530	#if PERL_VERSION < 9
568	Safefree(PL_retstack);	531	Safefree (PL_retstack);
		532	#endif
569	}	533	}
570		534
571	static void	535	static void
572	allocate_stack (Coro__State ctx, int alloc)	536	allocate_stack (Coro__State ctx, int alloc)
573	{	537	{
…		…
576	New (0, stack, 1, coro_stack);	540	New (0, stack, 1, coro_stack);
577		541
578	stack->refcnt = 1;	542	stack->refcnt = 1;
579	stack->usecnt = 1;	543	stack->usecnt = 1;
580	stack->gencnt = ctx->gencnt = 0;	544	stack->gencnt = ctx->gencnt = 0;
		545
581	if (alloc)	546	if (alloc)
582	{	547	{
583	#if HAVE_MMAP	548	#if HAVE_MMAP
584	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 */
585	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);
586	if (stack->sptr == (void *)-1)	551	if (stack->sptr != (void *)-1)
587	#endif
588	{	552	{
589	/FIXME//D//* reasonable stack size! */	553	# if STACKGUARD
		554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		555	# endif
		556	}
		557	else
		558	#endif
		559	{
590	stack->ssize = -4096 * sizeof (long);	560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
591	New (0, stack->sptr, 4096, long);	561	New (0, stack->sptr, STACKSIZE, long);
592	}	562	}
593	}	563	}
594	else	564	else
595	stack->sptr = 0;	565	stack->sptr = 0;
596		566
…		…
626	setup_coro (void *arg)	596	setup_coro (void *arg)
627	{	597	{
628	/*	598	/*
629	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
630	*/	600	*/
		601	dTHX;
631	dSP;	602	dSP;
632	Coro__State ctx = (Coro__State)arg;	603	Coro__State ctx = (Coro__State)arg;
633	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
634		605
635	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
636	/PL_curcop = 0;/	607	/PL_curcop = 0;/
637	/PL_in_eval = PL_in_eval;/ /* inherit */	608	/PL_in_eval = PL_in_eval;/ /* inherit */
638	SvREFCNT_dec (GvAV (PL_defgv));	609	SvREFCNT_dec (GvAV (PL_defgv));
…		…
655	}	626	}
656	else	627	else
657	{	628	{
658	UNOP myop;	629	UNOP myop;
659		630
660	PL_op = (OP *)&myop;
661
662	Zero(&myop, 1, UNOP);	631	Zero(&myop, 1, UNOP);
663	myop.op_next = Nullop;	632	myop.op_next = Nullop;
664	myop.op_flags = OPf_WANT_VOID;	633	myop.op_flags = OPf_WANT_VOID;
		634
		635	PL_op = (OP *)&myop;
665		636
666	PUSHMARK(SP);	637	PUSHMARK(SP);
667	XPUSHs (sub_init);	638	XPUSHs (sub_init);
668	/*	639	/*
669	* the next line is slightly wrong, as PL_op->op_next	640	* the next line is slightly wrong, as PL_op->op_next
…		…
684	continue_coro (void *arg)	655	continue_coro (void *arg)
685	{	656	{
686	/*	657	/*
687	* this is a _very_ stripped down perl interpreter ;)	658	* this is a _very_ stripped down perl interpreter ;)
688	*/	659	*/
		660	dTHX;
689	Coro__State ctx = (Coro__State)arg;	661	Coro__State ctx = (Coro__State)arg;
690	JMPENV coro_start_env;
691		662
692	PL_top_env = &ctx->start_env;	663	PL_top_env = &PL_start_env;
693		664
694	ctx->cursp = 0;	665	ctx->cursp = 0;
695	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
696	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
697		668
698	abort ();	669	abort ();
699	}	670	}
700		671
701	STATIC void	672	/* never call directly, always through the coro_state_transfer global variable */
		673	static void
702	transfer(pTHX_ struct coro prev, struct coro next, int flags)	674	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
703	{	675	{
704	dSTACKLEVEL;	676	dSTACKLEVEL;
705	static struct coro *xnext;
706		677
707	if (prev != next)	678	if (prev != next)
708	{	679	{
709	xnext = next;	680	/* has this coro been created yet? */
710
711	if (next->mainstack)	681	if (next->mainstack)
712	{	682	{
		683	LOCK;
713	SAVE (prev, flags);	684	SAVE (prev, flags);
714	LOAD (next);	685	LOAD (next);
		686	UNLOCK;
715		687
716	/* mark this state as in-use */	688	/* mark this state as in-use */
717	next->mainstack = 0;	689	next->mainstack = 0;
718	next->tmps_ix = -2;	690	next->tmps_ix = -2;
719		691
…		…
738	continue_coro, (void *)next,	710	continue_coro, (void *)next,
739	next->stack->sptr, labs (next->stack->ssize));	711	next->stack->sptr, labs (next->stack->ssize));
740	}	712	}
741		713
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		715	prev->cursp = stacklevel;
743	/* don't add any code here */	716	/* don't add any code here */
744	}	717	}
745		718	else
		719	next->cursp = stacklevel;
746	}	720	}
747	else if (next->tmps_ix == -2)	721	else if (next->tmps_ix == -2)
748	croak ("tried to transfer to running coroutine");	722	croak ("tried to transfer to running coroutine");
749	else	723	else
750	{	724	{
		725	LOCK;
751	SAVE (prev, -1); /* first get rid of the old state */	726	SAVE (prev, -1); /* first get rid of the old state */
		727	UNLOCK;
752		728
		729	/* create the coroutine for the first time */
753	if (flags & TRANSFER_SAVE_CCTXT)	730	if (flags & TRANSFER_SAVE_CCTXT)
754	{	731	{
755	if (!prev->stack)	732	if (!prev->stack)
756	allocate_stack (prev, 0);	733	allocate_stack (prev, 0);
757		734
		735	/* the new coroutine starts with start_env again */
		736	PL_top_env = &PL_start_env;
		737
758	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	738	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
759	{	739	{
760	PL_top_env = &next->start_env;
761
762	setup_coro (next);	740	setup_coro (next);
		741	next->cursp = stacklevel;
763		742
764	prev->stack->refcnt++;	743	prev->stack->refcnt++;
765	prev->stack->usecnt++;	744	prev->stack->usecnt++;
766	next->stack = prev->stack;	745	next->stack = prev->stack;
767	next->gencnt = prev->gencnt;	746	next->gencnt = prev->gencnt;
…		…
772	allocate_stack (next, 1);	751	allocate_stack (next, 1);
773	coro_create (&(next->stack->cctx),	752	coro_create (&(next->stack->cctx),
774	setup_coro, (void *)next,	753	setup_coro, (void *)next,
775	next->stack->sptr, labs (next->stack->ssize));	754	next->stack->sptr, labs (next->stack->ssize));
776	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	755	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		756	prev->cursp = stacklevel;
777	/* don't add any code here */	757	/* don't add any code here */
778	}	758	}
779	}	759	}
780	else	760	else
		761	{
781	setup_coro (next);	762	setup_coro (next);
		763	next->cursp = stacklevel;
		764	}
782	}	765	}
783
784	/*
785	* xnext is now either prev or next, depending on wether
786	* we switched the c stack or not. that's why I use a global
787	* variable, that should become thread-specific at one point.
788	*/
789	xnext->cursp = stacklevel;
790	}	766	}
791		767
		768	LOCK;
792	if (coro_mortal)	769	if (coro_mortal)
793	{	770	{
794	SvREFCNT_dec (coro_mortal);	771	SvREFCNT_dec (coro_mortal);
795	coro_mortal = 0;	772	coro_mortal = 0;
796	}	773	}
		774	UNLOCK;
797	}	775	}
		776
		777	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
798		778
799	#define SV_CORO(sv,func) \	779	#define SV_CORO(sv,func) \
800	do { \	780	do { \
801	if (SvROK (sv)) \	781	if (SvROK (sv)) \
802	sv = SvRV (sv); \	782	sv = SvRV (sv); \
803	\	783	\
804	if (SvTYPE(sv) == SVt_PVHV) \	784	if (SvTYPE (sv) == SVt_PVHV) \
805	{ \	785	{ \
806	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); \
807	\	787	\
808	if (!he) \	788	if (!he) \
809	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); \
810	\	790	\
811	(sv) = SvRV (HeVAL(he)); \	791	(sv) = SvRV (HeVAL(he)); \
812	} \	792	} \
813	\	793	\
814	/* must also be changed inside Coro::Cont::yield */ \	794	/* must also be changed inside Coro::Cont::yield */ \
815	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	795	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
816	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); \
817	\	797	\
818	} while(0)	798	} while(0)
819		799
820	#define SvSTATE(sv) (struct coro *)SvIV (sv)	800	#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
821		801
822	static void	802	static void
823	api_transfer(pTHX_ SV prev, SV next, int flags)	803	api_transfer (pTHX_ SV prev, SV next, int flags)
824	{	804	{
825	SV_CORO (prev, "Coro::transfer");	805	SV_CORO (prev, "Coro::transfer");
826	SV_CORO (next, "Coro::transfer");	806	SV_CORO (next, "Coro::transfer");
827		807
828	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	808	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
829	}	809	}
830		810
831	/ Coro ******************************************************************/	811	/ Coro ******************************************************************/
832		812
833	#define PRIO_MAX 3	813	#define PRIO_MAX 3
…		…
837	#define PRIO_IDLE -3	817	#define PRIO_IDLE -3
838	#define PRIO_MIN -4	818	#define PRIO_MIN -4
839		819
840	/* for Coro.pm */	820	/* for Coro.pm */
841	static GV coro_current, coro_idle;	821	static GV coro_current, coro_idle;
842	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	822	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
843	static int coro_nready;	823	static int coro_nready;
844		824
845	static void	825	static void
846	coro_enq (SV *sv)	826	coro_enq (pTHX_ SV *sv)
847	{	827	{
		828	SV **xprio;
		829	int prio;
		830
848	if (SvTYPE (sv) == SVt_PVHV)	831	if (SvTYPE (sv) != SVt_PVHV)
849	{
850	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
851	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
852
853	prio = prio > PRIO_MAX ? PRIO_MAX
854	: prio < PRIO_MIN ? PRIO_MIN
855	: prio;
856
857	av_push (coro_ready [prio - PRIO_MIN], sv);
858	coro_nready++;
859
860	return;
861	}
862
863	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++;
864	}	843	}
865		844
866	static SV *	845	static SV *
867	coro_deq (int min_prio)	846	coro_deq (pTHX_ int min_prio)
868	{	847	{
869	int prio = PRIO_MAX - PRIO_MIN;	848	int prio = PRIO_MAX - PRIO_MIN;
870		849
871	min_prio -= PRIO_MIN;	850	min_prio -= PRIO_MIN;
872	if (min_prio < 0)	851	if (min_prio < 0)
873	min_prio = 0;	852	min_prio = 0;
874		853
875	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	854	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
876	if (av_len (coro_ready[prio]) >= 0)	855	if (AvFILLp (coro_ready [prio]) >= 0)
877	{	856	{
878	coro_nready--;	857	coro_nready--;
879	return av_shift (coro_ready[prio]);	858	return av_shift (coro_ready [prio]);
880	}	859	}
881		860
882	return 0;	861	return 0;
883	}	862	}
884		863
885	static void	864	static void
886	api_ready (SV *coro)	865	api_ready (SV *coro)
887	{	866	{
		867	dTHX;
		868
888	if (SvROK (coro))	869	if (SvROK (coro))
889	coro = SvRV (coro);	870	coro = SvRV (coro);
890		871
		872	LOCK;
891	coro_enq (SvREFCNT_inc (coro));	873	coro_enq (aTHX_ SvREFCNT_inc (coro));
		874	UNLOCK;
892	}	875	}
893		876
894	static void	877	static void
895	api_schedule (void)	878	api_schedule (void)
896	{	879	{
		880	dTHX;
		881
897	SV prev, next;	882	SV prev, next;
898		883
		884	LOCK;
		885
899	prev = SvRV (GvSV (coro_current));	886	prev = SvRV (GvSV (coro_current));
900	next = coro_deq (PRIO_MIN);	887	next = coro_deq (aTHX_ PRIO_MIN);
901		888
902	if (!next)	889	if (!next)
903	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	890	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
904		891
905	/* free this only after the transfer */	892	/* free this only after the transfer */
…		…
908		895
909	SvRV (GvSV (coro_current)) = next;	896	SvRV (GvSV (coro_current)) = next;
910		897
911	SV_CORO (next, "Coro::schedule");	898	SV_CORO (next, "Coro::schedule");
912		899
		900	UNLOCK;
		901
913	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	902	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
914	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	903	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
915	}	904	}
916		905
917	static void	906	static void
918	api_cede (void)	907	api_cede (void)
919	{	908	{
		909	dTHX;
		910
		911	LOCK;
920	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	912	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		913	UNLOCK;
921		914
922	api_schedule ();	915	api_schedule ();
923	}	916	}
924		917
925	MODULE = Coro::State PACKAGE = Coro::State	918	MODULE = Coro::State PACKAGE = Coro::State
926		919
927	PROTOTYPES: ENABLE	920	PROTOTYPES: ENABLE
928		921
929	BOOT:	922	BOOT:
930	{ /* {} 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
931	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	929	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
932	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	930	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
933	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	931	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
934		932
935	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	933	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
936	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	934	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
937	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	935	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
938	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	936	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
939
940	if (!padlist_cache)
941	padlist_cache = newHV ();
942		937
943	main_mainstack = PL_mainstack;	938	main_mainstack = PL_mainstack;
944		939
945	coroapi.ver = CORO_API_VERSION;	940	coroapi.ver = CORO_API_VERSION;
946	coroapi.transfer = api_transfer;	941	coroapi.transfer = api_transfer;
…		…
957	croak ("Coro::State::_newprocess expects an arrayref");	952	croak ("Coro::State::_newprocess expects an arrayref");
958		953
959	Newz (0, coro, 1, struct coro);	954	Newz (0, coro, 1, struct coro);
960		955
961	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	956	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
962	coro->mainstack = 0; /* actual work is done inside transfer */	957	/coro->mainstack = 0; //actual work is done inside transfer /
963	coro->stack = 0;	958	/coro->stack = 0;/
964
965	/* same as JMPENV_BOOTSTRAP */
966	/* we might be able to recycle start_env, but safe is safe */
967	//Zero(&coro->start_env, 1, JMPENV);
968	coro->start_env.je_ret = -1;
969	coro->start_env.je_mustcatch = TRUE;
970		959
971	RETVAL = coro;	960	RETVAL = coro;
972	OUTPUT:	961	OUTPUT:
973	RETVAL	962	RETVAL
974		963
…		…
980	PROTOTYPE: @	969	PROTOTYPE: @
981	CODE:	970	CODE:
982	PUTBACK;	971	PUTBACK;
983	SV_CORO (next, "Coro::transfer");	972	SV_CORO (next, "Coro::transfer");
984	SV_CORO (prev, "Coro::transfer");	973	SV_CORO (prev, "Coro::transfer");
985	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	974	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
986	SPAGAIN;	975	SPAGAIN;
987		976
988	void	977	void
989	DESTROY(coro)	978	DESTROY(coro)
990	Coro::State coro	979	Coro::State coro
…		…
993	if (coro->mainstack && coro->mainstack != main_mainstack)	982	if (coro->mainstack && coro->mainstack != main_mainstack)
994	{	983	{
995	struct coro temp;	984	struct coro temp;
996		985
997	PUTBACK;	986	PUTBACK;
998	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	987	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
999	LOAD(aTHX_ coro);	988	LOAD (aTHX_ coro);
1000	SPAGAIN;	989	SPAGAIN;
1001		990
1002	destroy_stacks (aTHX);	991	destroy_stacks (aTHX);
1003		992
1004	LOAD((&temp)); /* this will get rid of defsv etc.. */	993	LOAD ((&temp)); /* this will get rid of defsv etc.. */
1005	SPAGAIN;	994	SPAGAIN;
1006		995
1007	coro->mainstack = 0;	996	coro->mainstack = 0;
1008	}	997	}
1009		998
1010	deallocate_stack (coro);	999	deallocate_stack (coro);
1011	SvREFCNT_dec (coro->args);	1000	SvREFCNT_dec (coro->args);
1012	Safefree (coro);	1001	Safefree (coro);
1013
1014	void
1015	flush()
1016	CODE:
1017	#ifdef MAY_FLUSH
1018	flush_padlist_cache ();
1019	#endif
1020		1002
1021	void	1003	void
1022	_exit(code)	1004	_exit(code)
1023	int code	1005	int code
1024	PROTOTYPE: $	1006	PROTOTYPE: $
1025	CODE:	1007	CODE:
1026	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
1027	_exit (code);	1008	_exit (code);
1028	#else
1029	signal (SIGTERM, SIG_DFL);
1030	raise (SIGTERM);
1031	exit (code);
1032	#endif
1033		1009
1034	MODULE = Coro::State PACKAGE = Coro::Cont	1010	MODULE = Coro::State PACKAGE = Coro::Cont
1035
1036	# this is slightly dirty (should expose a c-level api)
1037		1011
1038	void	1012	void
1039	yield(...)	1013	yield(...)
1040	PROTOTYPE: @	1014	PROTOTYPE: @
1041	CODE:	1015	CODE:
1042	static SV *returnstk;	1016	SV *yieldstack;
1043	SV *sv;	1017	SV *sv;
1044	AV *defav = GvAV (PL_defgv);	1018	AV *defav = GvAV (PL_defgv);
1045	struct coro prev, next;	1019	struct coro prev, next;
1046		1020
1047	if (!returnstk)	1021	yieldstack = *hv_fetch (
1048	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));	1022	(HV *)SvRV (GvSV (coro_current)),
		1023	"yieldstack", sizeof ("yieldstack") - 1,
		1024	0
		1025	);
1049		1026
1050	/* set up @_ -- ugly */	1027	/* set up @_ -- ugly */
1051	av_clear (defav);	1028	av_clear (defav);
1052	av_fill (defav, items - 1);	1029	av_fill (defav, items - 1);
1053	while (items--)	1030	while (items--)
1054	av_store (defav, items, SvREFCNT_inc (ST(items)));	1031	av_store (defav, items, SvREFCNT_inc (ST(items)));
1055		1032
1056	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1057	sv = av_pop ((AV *)SvRV (returnstk));	1033	sv = av_pop ((AV *)SvRV (yieldstack));
1058	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)));
1059	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)));
1060	SvREFCNT_dec (sv);	1036	SvREFCNT_dec (sv);
1061		1037
1062	transfer(aTHX_ prev, next, 0);	1038	coro_state_transfer (aTHX_ prev, next, 0);
1063		1039
1064	MODULE = Coro::State PACKAGE = Coro	1040	MODULE = Coro::State PACKAGE = Coro
1065
1066	# this is slightly dirty (should expose a c-level api)
1067		1041
1068	BOOT:	1042	BOOT:
1069	{	1043	{
1070	int i;	1044	int i;
1071	HV *stash = gv_stashpv ("Coro", TRUE);	1045	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1091	coroapi.ready = api_ready;	1065	coroapi.ready = api_ready;
1092	coroapi.nready = &coro_nready;	1066	coroapi.nready = &coro_nready;
1093	coroapi.current = coro_current;	1067	coroapi.current = coro_current;
1094		1068
1095	GCoroAPI = &coroapi;	1069	GCoroAPI = &coroapi;
1096	sv_setiv(sv, (IV)&coroapi);	1070	sv_setiv (sv, (IV)&coroapi);
1097	SvREADONLY_on(sv);	1071	SvREADONLY_on (sv);
1098	}	1072	}
1099	}	1073	}
		1074
		1075	#if !PERL_MICRO
1100		1076
1101	void	1077	void
1102	ready(self)	1078	ready(self)
1103	SV * self	1079	SV * self
1104	PROTOTYPE: $	1080	PROTOTYPE: $
1105	CODE:	1081	CODE:
1106	api_ready (self);	1082	api_ready (self);
		1083
		1084	#endif
1107		1085
1108	int	1086	int
1109	nready(...)	1087	nready(...)
1110	PROTOTYPE:	1088	PROTOTYPE:
1111	CODE:	1089	CODE:
…		…
1123	cede(...)	1101	cede(...)
1124	PROTOTYPE:	1102	PROTOTYPE:
1125	CODE:	1103	CODE:
1126	api_cede ();	1104	api_cede ();
1127		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 1.49 by pcg, Sun Nov 23 03:34:13 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 1.49 by pcg, Sun Nov 23 03:34:13 2003 UTC vs.
Revision 1.84 by root, Fri Nov 24 00:31:21 2006 UTC