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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.47 by pcg, Sat Nov 15 03:53:10 2003 UTC vs.
Revision 1.83 by root, Mon Nov 20 22:32:44 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));
…		…
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
…		…
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));
…		…
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	static void
701	transfer(pTHX_ struct coro prev, struct coro next, int flags)	673	transfer (pTHX_ struct coro prev, struct coro next, int flags)
702	{	674	{
703	dSTACKLEVEL;	675	dSTACKLEVEL;
704	static struct coro *xnext;
705		676
706	if (prev != next)	677	if (prev != next)
707	{	678	{
708	xnext = next;	679	/* has this coro been created yet? */
709
710	if (next->mainstack)	680	if (next->mainstack)
711	{	681	{
		682	LOCK;
712	SAVE (prev, flags);	683	SAVE (prev, flags);
713	LOAD (next);	684	LOAD (next);
		685	UNLOCK;
714		686
715	/* mark this state as in-use */	687	/* mark this state as in-use */
716	next->mainstack = 0;	688	next->mainstack = 0;
717	next->tmps_ix = -2;	689	next->tmps_ix = -2;
718		690
…		…
737	continue_coro, (void *)next,	709	continue_coro, (void *)next,
738	next->stack->sptr, labs (next->stack->ssize));	710	next->stack->sptr, labs (next->stack->ssize));
739	}	711	}
740		712
741	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		714	prev->cursp = stacklevel;
742	/* don't add any code here */	715	/* don't add any code here */
743	}	716	}
744		717	else
		718	next->cursp = stacklevel;
745	}	719	}
746	else if (next->tmps_ix == -2)	720	else if (next->tmps_ix == -2)
747	croak ("tried to transfer to running coroutine");	721	croak ("tried to transfer to running coroutine");
748	else	722	else
749	{	723	{
		724	LOCK;
750	SAVE (prev, -1); /* first get rid of the old state */	725	SAVE (prev, -1); /* first get rid of the old state */
		726	UNLOCK;
751		727
		728	/* create the coroutine for the first time */
752	if (flags & TRANSFER_SAVE_CCTXT)	729	if (flags & TRANSFER_SAVE_CCTXT)
753	{	730	{
754	if (!prev->stack)	731	if (!prev->stack)
755	allocate_stack (prev, 0);	732	allocate_stack (prev, 0);
756		733
		734	/* the new coroutine starts with start_env again */
		735	PL_top_env = &PL_start_env;
		736
757	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	737	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
758	{	738	{
759	PL_top_env = &next->start_env;
760
761	setup_coro (next);	739	setup_coro (next);
		740	next->cursp = stacklevel;
762		741
763	prev->stack->refcnt++;	742	prev->stack->refcnt++;
764	prev->stack->usecnt++;	743	prev->stack->usecnt++;
765	next->stack = prev->stack;	744	next->stack = prev->stack;
766	next->gencnt = prev->gencnt;	745	next->gencnt = prev->gencnt;
…		…
771	allocate_stack (next, 1);	750	allocate_stack (next, 1);
772	coro_create (&(next->stack->cctx),	751	coro_create (&(next->stack->cctx),
773	setup_coro, (void *)next,	752	setup_coro, (void *)next,
774	next->stack->sptr, labs (next->stack->ssize));	753	next->stack->sptr, labs (next->stack->ssize));
775	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		755	prev->cursp = stacklevel;
776	/* don't add any code here */	756	/* don't add any code here */
777	}	757	}
778	}	758	}
779	else	759	else
		760	{
780	setup_coro (next);	761	setup_coro (next);
		762	next->cursp = stacklevel;
		763	}
781	}	764	}
782
783	/*
784	* xnext is now either prev or next, depending on wether
785	* we switched the c stack or not. that's why I use a global
786	* variable, that should become thread-specific at one point.
787	*/
788	xnext->cursp = stacklevel;
789	}	765	}
790		766
		767	LOCK;
791	if (coro_mortal)	768	if (coro_mortal)
792	{	769	{
793	SvREFCNT_dec (coro_mortal);	770	SvREFCNT_dec (coro_mortal);
794	coro_mortal = 0;	771	coro_mortal = 0;
795	}	772	}
		773	UNLOCK;
796	}	774	}
797		775
798	#define SV_CORO(sv,func) \	776	#define SV_CORO(sv,func) \
799	do { \	777	do { \
800	if (SvROK (sv)) \	778	if (SvROK (sv)) \
801	sv = SvRV (sv); \	779	sv = SvRV (sv); \
802	\	780	\
803	if (SvTYPE(sv) == SVt_PVHV) \	781	if (SvTYPE (sv) == SVt_PVHV) \
804	{ \	782	{ \
805	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	783	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
806	\	784	\
807	if (!he) \	785	if (!he) \
808	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	786	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
809	\	787	\
810	(sv) = SvRV (HeVAL(he)); \	788	(sv) = SvRV (HeVAL(he)); \
811	} \	789	} \
812	\	790	\
813	/* must also be changed inside Coro::Cont::yield */ \	791	/* must also be changed inside Coro::Cont::yield */ \
814	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	792	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
815	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	793	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
816	\	794	\
817	} while(0)	795	} while(0)
818		796
819	#define SvSTATE(sv) (struct coro *)SvIV (sv)	797	#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
820		798
821	static void	799	static void
822	api_transfer(pTHX_ SV prev, SV next, int flags)	800	api_transfer(pTHX_ SV prev, SV next, int flags)
823	{	801	{
824	SV_CORO (prev, "Coro::transfer");	802	SV_CORO (prev, "Coro::transfer");
825	SV_CORO (next, "Coro::transfer");	803	SV_CORO (next, "Coro::transfer");
826		804
827	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	805	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
828	}	806	}
829		807
830	/ Coro ******************************************************************/	808	/ Coro ******************************************************************/
831		809
832	#define PRIO_MAX 3	810	#define PRIO_MAX 3
…		…
836	#define PRIO_IDLE -3	814	#define PRIO_IDLE -3
837	#define PRIO_MIN -4	815	#define PRIO_MIN -4
838		816
839	/* for Coro.pm */	817	/* for Coro.pm */
840	static GV coro_current, coro_idle;	818	static GV coro_current, coro_idle;
841	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	819	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
842	static int coro_nready;	820	static int coro_nready;
843		821
844	static void	822	static void
845	coro_enq (SV *sv)	823	coro_enq (pTHX_ SV *sv)
846	{	824	{
		825	SV **xprio;
		826	int prio;
		827
847	if (SvTYPE (sv) == SVt_PVHV)	828	if (SvTYPE (sv) != SVt_PVHV)
848	{
849	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
850	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
851
852	prio = prio > PRIO_MAX ? PRIO_MAX
853	: prio < PRIO_MIN ? PRIO_MIN
854	: prio;
855
856	av_push (coro_ready [prio - PRIO_MIN], sv);
857	coro_nready++;
858
859	return;
860	}
861
862	croak ("Coro::ready tried to enqueue something that is not a coroutine");	829	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		830
		831	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		832	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		833
		834	prio = prio > PRIO_MAX ? PRIO_MAX
		835	: prio < PRIO_MIN ? PRIO_MIN
		836	: prio;
		837
		838	av_push (coro_ready [prio - PRIO_MIN], sv);
		839	coro_nready++;
863	}	840	}
864		841
865	static SV *	842	static SV *
866	coro_deq (int min_prio)	843	coro_deq (pTHX_ int min_prio)
867	{	844	{
868	int prio = PRIO_MAX - PRIO_MIN;	845	int prio = PRIO_MAX - PRIO_MIN;
869		846
870	min_prio -= PRIO_MIN;	847	min_prio -= PRIO_MIN;
871	if (min_prio < 0)	848	if (min_prio < 0)
872	min_prio = 0;	849	min_prio = 0;
873		850
874	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	851	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
875	if (av_len (coro_ready[prio]) >= 0)	852	if (AvFILLp (coro_ready [prio]) >= 0)
876	{	853	{
877	coro_nready--;	854	coro_nready--;
878	return av_shift (coro_ready[prio]);	855	return av_shift (coro_ready [prio]);
879	}	856	}
880		857
881	return 0;	858	return 0;
882	}	859	}
883		860
884	static void	861	static void
885	api_ready (SV *coro)	862	api_ready (SV *coro)
886	{	863	{
		864	dTHX;
		865
887	if (SvROK (coro))	866	if (SvROK (coro))
888	coro = SvRV (coro);	867	coro = SvRV (coro);
889		868
		869	LOCK;
890	coro_enq (SvREFCNT_inc (coro));	870	coro_enq (aTHX_ SvREFCNT_inc (coro));
		871	UNLOCK;
891	}	872	}
892		873
893	static void	874	static void
894	api_schedule (void)	875	api_schedule (void)
895	{	876	{
		877	dTHX;
		878
896	SV prev, next;	879	SV prev, next;
897		880
		881	LOCK;
		882
898	prev = SvRV (GvSV (coro_current));	883	prev = SvRV (GvSV (coro_current));
899	next = coro_deq (PRIO_MIN);	884	next = coro_deq (aTHX_ PRIO_MIN);
900		885
901	if (!next)	886	if (!next)
902	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	887	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
903		888
904	/* free this only after the transfer */	889	/* free this only after the transfer */
…		…
907		892
908	SvRV (GvSV (coro_current)) = next;	893	SvRV (GvSV (coro_current)) = next;
909		894
910	SV_CORO (next, "Coro::schedule");	895	SV_CORO (next, "Coro::schedule");
911		896
		897	UNLOCK;
		898
912	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	899	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
913	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	900	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
914	}	901	}
915		902
916	static void	903	static void
917	api_cede (void)	904	api_cede (void)
918	{	905	{
		906	dTHX;
		907
		908	LOCK;
919	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	909	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		910	UNLOCK;
920		911
921	api_schedule ();	912	api_schedule ();
922	}	913	}
923		914
924	MODULE = Coro::State PACKAGE = Coro::State	915	MODULE = Coro::State PACKAGE = Coro::State
925		916
926	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
927		918
928	BOOT:	919	BOOT:
929	{ /* {} necessary for stoopid perl-5.6.x */	920	{ /* {} necessary for stoopid perl-5.6.x */
		921	#ifdef USE_ITHREADS
		922	MUTEX_INIT (&coro_mutex);
		923	#endif
		924	BOOT_PAGESIZE;
		925
930	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	926	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
931	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	927	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
932	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	928	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
933		929
934	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	930	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
935	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	931	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
936	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	932	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
937	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	933	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
938
939	if (!padlist_cache)
940	padlist_cache = newHV ();
941		934
942	main_mainstack = PL_mainstack;	935	main_mainstack = PL_mainstack;
943		936
944	coroapi.ver = CORO_API_VERSION;	937	coroapi.ver = CORO_API_VERSION;
945	coroapi.transfer = api_transfer;	938	coroapi.transfer = api_transfer;
…		…
956	croak ("Coro::State::_newprocess expects an arrayref");	949	croak ("Coro::State::_newprocess expects an arrayref");
957		950
958	Newz (0, coro, 1, struct coro);	951	Newz (0, coro, 1, struct coro);
959		952
960	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	953	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
961	coro->mainstack = 0; /* actual work is done inside transfer */	954	/coro->mainstack = 0; //actual work is done inside transfer /
962	coro->stack = 0;	955	/coro->stack = 0;/
963
964	/* same as JMPENV_BOOTSTRAP */
965	/* we might be able to recycle start_env, but safe is safe */
966	//Zero(&coro->start_env, 1, JMPENV);
967	coro->start_env.je_ret = -1;
968	coro->start_env.je_mustcatch = TRUE;
969		956
970	RETVAL = coro;	957	RETVAL = coro;
971	OUTPUT:	958	OUTPUT:
972	RETVAL	959	RETVAL
973		960
…		…
992	if (coro->mainstack && coro->mainstack != main_mainstack)	979	if (coro->mainstack && coro->mainstack != main_mainstack)
993	{	980	{
994	struct coro temp;	981	struct coro temp;
995		982
996	PUTBACK;	983	PUTBACK;
997	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	984	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
998	LOAD(aTHX_ coro);	985	LOAD (aTHX_ coro);
999	SPAGAIN;	986	SPAGAIN;
1000		987
1001	destroy_stacks (aTHX);	988	destroy_stacks (aTHX);
1002		989
1003	LOAD((&temp)); /* this will get rid of defsv etc.. */	990	LOAD ((&temp)); /* this will get rid of defsv etc.. */
1004	SPAGAIN;	991	SPAGAIN;
1005		992
1006	coro->mainstack = 0;	993	coro->mainstack = 0;
1007	}	994	}
1008		995
1009	deallocate_stack (coro);	996	deallocate_stack (coro);
1010	SvREFCNT_dec (coro->args);	997	SvREFCNT_dec (coro->args);
1011	Safefree (coro);	998	Safefree (coro);
1012
1013	void
1014	flush()
1015	CODE:
1016	#ifdef MAY_FLUSH
1017	flush_padlist_cache ();
1018	#endif
1019		999
1020	void	1000	void
1021	_exit(code)	1001	_exit(code)
1022	int code	1002	int code
1023	PROTOTYPE: $	1003	PROTOTYPE: $
1024	CODE:	1004	CODE:
1025	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
1026	_exit (code);	1005	_exit (code);
1027	#else
1028	signal (SIGTERM, SIG_DFL);
1029	raise (SIGTERM);
1030	exit (code);
1031	#endif
1032		1006
1033	MODULE = Coro::State PACKAGE = Coro::Cont	1007	MODULE = Coro::State PACKAGE = Coro::Cont
1034
1035	# this is slightly dirty (should expose a c-level api)
1036		1008
1037	void	1009	void
1038	yield(...)	1010	yield(...)
1039	PROTOTYPE: @	1011	PROTOTYPE: @
1040	CODE:	1012	CODE:
1041	static SV *returnstk;	1013	SV *yieldstack;
1042	SV *sv;	1014	SV *sv;
1043	AV *defav = GvAV (PL_defgv);	1015	AV *defav = GvAV (PL_defgv);
1044	struct coro prev, next;	1016	struct coro prev, next;
1045		1017
1046	if (!returnstk)	1018	yieldstack = *hv_fetch (
1047	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));	1019	(HV *)SvRV (GvSV (coro_current)),
		1020	"yieldstack", sizeof ("yieldstack") - 1,
		1021	0
		1022	);
1048		1023
1049	/* set up @_ -- ugly */	1024	/* set up @_ -- ugly */
1050	av_clear (defav);	1025	av_clear (defav);
1051	av_fill (defav, items - 1);	1026	av_fill (defav, items - 1);
1052	while (items--)	1027	while (items--)
1053	av_store (defav, items, SvREFCNT_inc (ST(items)));	1028	av_store (defav, items, SvREFCNT_inc (ST(items)));
1054		1029
1055	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1056	sv = av_pop ((AV *)SvRV (returnstk));	1030	sv = av_pop ((AV *)SvRV (yieldstack));
1057	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1031	prev = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 0, 0)));
1058	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1032	next = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 1, 0)));
1059	SvREFCNT_dec (sv);	1033	SvREFCNT_dec (sv);
1060		1034
1061	transfer(aTHX_ prev, next, 0);	1035	transfer (aTHX_ prev, next, 0);
1062		1036
1063	MODULE = Coro::State PACKAGE = Coro	1037	MODULE = Coro::State PACKAGE = Coro
1064
1065	# this is slightly dirty (should expose a c-level api)
1066		1038
1067	BOOT:	1039	BOOT:
1068	{	1040	{
1069	int i;	1041	int i;
1070	HV *stash = gv_stashpv ("Coro", TRUE);	1042	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1090	coroapi.ready = api_ready;	1062	coroapi.ready = api_ready;
1091	coroapi.nready = &coro_nready;	1063	coroapi.nready = &coro_nready;
1092	coroapi.current = coro_current;	1064	coroapi.current = coro_current;
1093		1065
1094	GCoroAPI = &coroapi;	1066	GCoroAPI = &coroapi;
1095	sv_setiv(sv, (IV)&coroapi);	1067	sv_setiv (sv, (IV)&coroapi);
1096	SvREADONLY_on(sv);	1068	SvREADONLY_on (sv);
1097	}	1069	}
1098	}	1070	}
		1071
		1072	#if !PERL_MICRO
1099		1073
1100	void	1074	void
1101	ready(self)	1075	ready(self)
1102	SV * self	1076	SV * self
1103	PROTOTYPE: $	1077	PROTOTYPE: $
1104	CODE:	1078	CODE:
1105	api_ready (self);	1079	api_ready (self);
		1080
		1081	#endif
1106		1082
1107	int	1083	int
1108	nready(...)	1084	nready(...)
1109	PROTOTYPE:	1085	PROTOTYPE:
1110	CODE:	1086	CODE:
…		…
1122	cede(...)	1098	cede(...)
1123	PROTOTYPE:	1099	PROTOTYPE:
1124	CODE:	1100	CODE:
1125	api_cede ();	1101	api_cede ();
1126		1102
		1103	# and these are hacks
		1104	SV *
		1105	_aio_get_state ()
		1106	CODE:
		1107	{
		1108	struct {
		1109	int errorno;
		1110	int laststype;
		1111	int laststatval;
		1112	Stat_t statcache;
		1113	} data;
		1114
		1115	data.errorno = errno;
		1116	data.laststype = PL_laststype;
		1117	data.laststatval = PL_laststatval;
		1118	data.statcache = PL_statcache;
		1119
		1120	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1121	}
		1122	OUTPUT:
		1123	RETVAL
		1124
		1125	void
		1126	_aio_set_state (char *data_)
		1127	PROTOTYPE: $
		1128	CODE:
		1129	{
		1130	struct {
		1131	int errorno;
		1132	int laststype;
		1133	int laststatval;
		1134	Stat_t statcache;
		1135	} data = (void )data_;
		1136
		1137	errno = data->errorno;
		1138	PL_laststype = data->laststype;
		1139	PL_laststatval = data->laststatval;
		1140	PL_statcache = data->statcache;
		1141	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.47 by pcg, Sat Nov 15 03:53:10 2003 UTC vs. Revision 1.83 by root, Mon Nov 20 22:32:44 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.47 by pcg, Sat Nov 15 03:53:10 2003 UTC vs.
Revision 1.83 by root, Mon Nov 20 22:32:44 2006 UTC