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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.48 by pcg, Sat Nov 15 03:53:37 2003 UTC vs.
Revision 1.81 by root, Fri Nov 3 00:56:03 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	*/	487	*/
524	STATIC void	488	static void
525	destroy_stacks(pTHX)	489	destroy_stacks(pTHX)
526	{	490	{
527	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
528	{	492	{
529	/* is this ugly, I ask? */	493	/* is this ugly, I ask? */
530	while (PL_scopestack_ix)	494	LEAVE_SCOPE (0);
531	LEAVE;
532		495
533	/* sure it is, but more important: is it correct?? :/ */	496	/* sure it is, but more important: is it correct?? :/ */
534	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
535	FREETMPS;	497	FREETMPS;
		498
		499	/POPSTACK_TO (PL_mainstack);//D//use/
536	}	500	}
537		501
538	while (PL_curstackinfo->si_next)	502	while (PL_curstackinfo->si_next)
539	PL_curstackinfo = PL_curstackinfo->si_next;	503	PL_curstackinfo = PL_curstackinfo->si_next;
540		504
541	while (PL_curstackinfo)	505	while (PL_curstackinfo)
542	{	506	{
543	PERL_SI *p = PL_curstackinfo->si_prev;	507	PERL_SI *p = PL_curstackinfo->si_prev;
544		508
545	{	509	{ /D//remove/
546	dSP;	510	dSP;
547	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	511	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
548	PUTBACK; /* possibly superfluous */	512	PUTBACK; /* possibly superfluous */
549	}	513	}
550		514
551	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
552	{	516	{
553	dounwind(-1);	517	dounwind (-1);/D//remove/
554	SvREFCNT_dec(PL_curstackinfo->si_stack);	518	SvREFCNT_dec (PL_curstackinfo->si_stack);
555	}	519	}
556		520
557	Safefree(PL_curstackinfo->si_cxstack);	521	Safefree (PL_curstackinfo->si_cxstack);
558	Safefree(PL_curstackinfo);	522	Safefree (PL_curstackinfo);
559	PL_curstackinfo = p;	523	PL_curstackinfo = p;
560	}	524	}
561		525
562	Safefree(PL_tmps_stack);	526	Safefree (PL_tmps_stack);
563	Safefree(PL_markstack);	527	Safefree (PL_markstack);
564	Safefree(PL_scopestack);	528	Safefree (PL_scopestack);
565	Safefree(PL_savestack);	529	Safefree (PL_savestack);
		530	#if PERL_VERSION < 9
566	Safefree(PL_retstack);	531	Safefree (PL_retstack);
		532	#endif
567	}	533	}
568		534
569	static void	535	static void
570	allocate_stack (Coro__State ctx, int alloc)	536	allocate_stack (Coro__State ctx, int alloc)
571	{	537	{
…		…
574	New (0, stack, 1, coro_stack);	540	New (0, stack, 1, coro_stack);
575		541
576	stack->refcnt = 1;	542	stack->refcnt = 1;
577	stack->usecnt = 1;	543	stack->usecnt = 1;
578	stack->gencnt = ctx->gencnt = 0;	544	stack->gencnt = ctx->gencnt = 0;
		545
579	if (alloc)	546	if (alloc)
580	{	547	{
581	#if HAVE_MMAP	548	#if HAVE_MMAP
582	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 */
583	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);
584	if (stack->sptr == (void *)-1)	551	if (stack->sptr != (void *)-1)
585	#endif
586	{	552	{
587	/FIXME//D//* reasonable stack size! */	553	# if STACKGUARD
		554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		555	# endif
		556	}
		557	else
		558	#endif
		559	{
588	stack->ssize = -4096 * sizeof (long);	560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
589	New (0, stack->sptr, 4096, long);	561	New (0, stack->sptr, STACKSIZE, long);
590	}	562	}
591	}	563	}
592	else	564	else
593	stack->sptr = 0;	565	stack->sptr = 0;
594		566
…		…
624	setup_coro (void *arg)	596	setup_coro (void *arg)
625	{	597	{
626	/*	598	/*
627	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
628	*/	600	*/
		601	dTHX;
629	dSP;	602	dSP;
630	Coro__State ctx = (Coro__State)arg;	603	Coro__State ctx = (Coro__State)arg;
631	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
632		605
633	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
634	/PL_curcop = 0;/	607	/PL_curcop = 0;/
635	/PL_in_eval = PL_in_eval;/ /* inherit */	608	/PL_in_eval = PL_in_eval;/ /* inherit */
636	SvREFCNT_dec (GvAV (PL_defgv));	609	SvREFCNT_dec (GvAV (PL_defgv));
…		…
653	}	626	}
654	else	627	else
655	{	628	{
656	UNOP myop;	629	UNOP myop;
657		630
658	PL_op = (OP *)&myop;
659
660	Zero(&myop, 1, UNOP);	631	Zero(&myop, 1, UNOP);
661	myop.op_next = Nullop;	632	myop.op_next = Nullop;
662	myop.op_flags = OPf_WANT_VOID;	633	myop.op_flags = OPf_WANT_VOID;
		634
		635	PL_op = (OP *)&myop;
663		636
664	PUSHMARK(SP);	637	PUSHMARK(SP);
665	XPUSHs (sub_init);	638	XPUSHs (sub_init);
666	/*	639	/*
667	* the next line is slightly wrong, as PL_op->op_next	640	* the next line is slightly wrong, as PL_op->op_next
…		…
682	continue_coro (void *arg)	655	continue_coro (void *arg)
683	{	656	{
684	/*	657	/*
685	* this is a _very_ stripped down perl interpreter ;)	658	* this is a _very_ stripped down perl interpreter ;)
686	*/	659	*/
		660	dTHX;
687	Coro__State ctx = (Coro__State)arg;	661	Coro__State ctx = (Coro__State)arg;
688	JMPENV coro_start_env;
689		662
690	PL_top_env = &ctx->start_env;	663	PL_top_env = &PL_start_env;
691		664
692	ctx->cursp = 0;	665	ctx->cursp = 0;
693	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
694	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
695		668
696	abort ();	669	abort ();
697	}	670	}
698		671
699	STATIC void	672	static void
700	transfer(pTHX_ struct coro prev, struct coro next, int flags)	673	transfer (pTHX_ struct coro prev, struct coro next, int flags)
701	{	674	{
702	dSTACKLEVEL;	675	dSTACKLEVEL;
703	static struct coro *xnext;
704		676
705	if (prev != next)	677	if (prev != next)
706	{	678	{
707	xnext = next;	679	/* has this coro been created yet? */
708
709	if (next->mainstack)	680	if (next->mainstack)
710	{	681	{
		682	LOCK;
711	SAVE (prev, flags);	683	SAVE (prev, flags);
712	LOAD (next);	684	LOAD (next);
		685	UNLOCK;
713		686
714	/* mark this state as in-use */	687	/* mark this state as in-use */
715	next->mainstack = 0;	688	next->mainstack = 0;
716	next->tmps_ix = -2;	689	next->tmps_ix = -2;
717		690
…		…
736	continue_coro, (void *)next,	709	continue_coro, (void *)next,
737	next->stack->sptr, labs (next->stack->ssize));	710	next->stack->sptr, labs (next->stack->ssize));
738	}	711	}
739		712
740	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		714	prev->cursp = stacklevel;
741	/* don't add any code here */	715	/* don't add any code here */
742	}	716	}
743		717	else
		718	next->cursp = stacklevel;
744	}	719	}
745	else if (next->tmps_ix == -2)	720	else if (next->tmps_ix == -2)
746	croak ("tried to transfer to running coroutine");	721	croak ("tried to transfer to running coroutine");
747	else	722	else
748	{	723	{
		724	LOCK;
749	SAVE (prev, -1); /* first get rid of the old state */	725	SAVE (prev, -1); /* first get rid of the old state */
		726	UNLOCK;
750		727
		728	/* create the coroutine for the first time */
751	if (flags & TRANSFER_SAVE_CCTXT)	729	if (flags & TRANSFER_SAVE_CCTXT)
752	{	730	{
753	if (!prev->stack)	731	if (!prev->stack)
754	allocate_stack (prev, 0);	732	allocate_stack (prev, 0);
755		733
		734	/* the new coroutine starts with start_env again */
		735	PL_top_env = &PL_start_env;
		736
756	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	737	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
757	{	738	{
758	PL_top_env = &next->start_env;
759
760	setup_coro (next);	739	setup_coro (next);
		740	next->cursp = stacklevel;
761		741
762	prev->stack->refcnt++;	742	prev->stack->refcnt++;
763	prev->stack->usecnt++;	743	prev->stack->usecnt++;
764	next->stack = prev->stack;	744	next->stack = prev->stack;
765	next->gencnt = prev->gencnt;	745	next->gencnt = prev->gencnt;
…		…
770	allocate_stack (next, 1);	750	allocate_stack (next, 1);
771	coro_create (&(next->stack->cctx),	751	coro_create (&(next->stack->cctx),
772	setup_coro, (void *)next,	752	setup_coro, (void *)next,
773	next->stack->sptr, labs (next->stack->ssize));	753	next->stack->sptr, labs (next->stack->ssize));
774	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		755	prev->cursp = stacklevel;
775	/* don't add any code here */	756	/* don't add any code here */
776	}	757	}
777	}	758	}
778	else	759	else
		760	{
779	setup_coro (next);	761	setup_coro (next);
		762	next->cursp = stacklevel;
		763	}
780	}	764	}
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	}	765	}
789		766
		767	LOCK;
790	if (coro_mortal)	768	if (coro_mortal)
791	{	769	{
792	SvREFCNT_dec (coro_mortal);	770	SvREFCNT_dec (coro_mortal);
793	coro_mortal = 0;	771	coro_mortal = 0;
794	}	772	}
		773	UNLOCK;
795	}	774	}
796		775
797	#define SV_CORO(sv,func) \	776	#define SV_CORO(sv,func) \
798	do { \	777	do { \
799	if (SvROK (sv)) \	778	if (SvROK (sv)) \
800	sv = SvRV (sv); \	779	sv = SvRV (sv); \
801	\	780	\
802	if (SvTYPE(sv) == SVt_PVHV) \	781	if (SvTYPE (sv) == SVt_PVHV) \
803	{ \	782	{ \
804	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); \
805	\	784	\
806	if (!he) \	785	if (!he) \
807	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); \
808	\	787	\
809	(sv) = SvRV (HeVAL(he)); \	788	(sv) = SvRV (HeVAL(he)); \
810	} \	789	} \
811	\	790	\
812	/* must also be changed inside Coro::Cont::yield */ \	791	/* must also be changed inside Coro::Cont::yield */ \
813	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	792	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
814	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); \
815	\	794	\
816	} while(0)	795	} while(0)
817		796
818	#define SvSTATE(sv) (struct coro *)SvIV (sv)	797	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
819		798
820	static void	799	static void
821	api_transfer(pTHX_ SV prev, SV next, int flags)	800	api_transfer(pTHX_ SV prev, SV next, int flags)
822	{	801	{
823	SV_CORO (prev, "Coro::transfer");	802	SV_CORO (prev, "Coro::transfer");
824	SV_CORO (next, "Coro::transfer");	803	SV_CORO (next, "Coro::transfer");
825		804
826	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	805	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
827	}	806	}
828		807
829	/ Coro ******************************************************************/	808	/ Coro ******************************************************************/
830		809
831	#define PRIO_MAX 3	810	#define PRIO_MAX 3
…		…
839	static GV coro_current, coro_idle;	818	static GV coro_current, coro_idle;
840	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	819	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
841	static int coro_nready;	820	static int coro_nready;
842		821
843	static void	822	static void
844	coro_enq (SV *sv)	823	coro_enq (pTHX_ SV *sv)
845	{	824	{
		825	SV **xprio;
		826	int prio;
		827
846	if (SvTYPE (sv) == SVt_PVHV)	828	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");	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++;
862	}	840	}
863		841
864	static SV *	842	static SV *
865	coro_deq (int min_prio)	843	coro_deq (pTHX_ int min_prio)
866	{	844	{
867	int prio = PRIO_MAX - PRIO_MIN;	845	int prio = PRIO_MAX - PRIO_MIN;
868		846
869	min_prio -= PRIO_MIN;	847	min_prio -= PRIO_MIN;
870	if (min_prio < 0)	848	if (min_prio < 0)
…		…
881	}	859	}
882		860
883	static void	861	static void
884	api_ready (SV *coro)	862	api_ready (SV *coro)
885	{	863	{
		864	dTHX;
		865
886	if (SvROK (coro))	866	if (SvROK (coro))
887	coro = SvRV (coro);	867	coro = SvRV (coro);
888		868
		869	LOCK;
889	coro_enq (SvREFCNT_inc (coro));	870	coro_enq (aTHX_ SvREFCNT_inc (coro));
		871	UNLOCK;
890	}	872	}
891		873
892	static void	874	static void
893	api_schedule (void)	875	api_schedule (void)
894	{	876	{
		877	dTHX;
		878
895	SV prev, next;	879	SV prev, next;
896		880
		881	LOCK;
		882
897	prev = SvRV (GvSV (coro_current));	883	prev = SvRV (GvSV (coro_current));
898	next = coro_deq (PRIO_MIN);	884	next = coro_deq (aTHX_ PRIO_MIN);
899		885
900	if (!next)	886	if (!next)
901	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	887	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
902		888
903	/* free this only after the transfer */	889	/* free this only after the transfer */
…		…
906		892
907	SvRV (GvSV (coro_current)) = next;	893	SvRV (GvSV (coro_current)) = next;
908		894
909	SV_CORO (next, "Coro::schedule");	895	SV_CORO (next, "Coro::schedule");
910		896
		897	UNLOCK;
		898
911	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	899	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
912	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	900	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
913	}	901	}
914		902
915	static void	903	static void
916	api_cede (void)	904	api_cede (void)
917	{	905	{
		906	dTHX;
		907
		908	LOCK;
918	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	909	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		910	UNLOCK;
919		911
920	api_schedule ();	912	api_schedule ();
921	}	913	}
922		914
923	MODULE = Coro::State PACKAGE = Coro::State	915	MODULE = Coro::State PACKAGE = Coro::State
924		916
925	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
926		918
927	BOOT:	919	BOOT:
928	{ /* {} 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
929	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	926	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
930	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	927	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
931	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	928	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
932		929
933	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	930	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
934	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	931	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
935	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	932	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
936	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	933	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
937
938	if (!padlist_cache)
939	padlist_cache = newHV ();
940		934
941	main_mainstack = PL_mainstack;	935	main_mainstack = PL_mainstack;
942		936
943	coroapi.ver = CORO_API_VERSION;	937	coroapi.ver = CORO_API_VERSION;
944	coroapi.transfer = api_transfer;	938	coroapi.transfer = api_transfer;
…		…
955	croak ("Coro::State::_newprocess expects an arrayref");	949	croak ("Coro::State::_newprocess expects an arrayref");
956		950
957	Newz (0, coro, 1, struct coro);	951	Newz (0, coro, 1, struct coro);
958		952
959	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	953	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
960	coro->mainstack = 0; /* actual work is done inside transfer */	954	/coro->mainstack = 0; //actual work is done inside transfer /
961	coro->stack = 0;	955	/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		956
969	RETVAL = coro;	957	RETVAL = coro;
970	OUTPUT:	958	OUTPUT:
971	RETVAL	959	RETVAL
972		960
…		…
991	if (coro->mainstack && coro->mainstack != main_mainstack)	979	if (coro->mainstack && coro->mainstack != main_mainstack)
992	{	980	{
993	struct coro temp;	981	struct coro temp;
994		982
995	PUTBACK;	983	PUTBACK;
996	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	984	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
997	LOAD(aTHX_ coro);	985	LOAD (aTHX_ coro);
998	SPAGAIN;	986	SPAGAIN;
999		987
1000	destroy_stacks (aTHX);	988	destroy_stacks (aTHX);
1001		989
1002	LOAD((&temp)); /* this will get rid of defsv etc.. */	990	LOAD ((&temp)); /* this will get rid of defsv etc.. */
1003	SPAGAIN;	991	SPAGAIN;
1004		992
1005	coro->mainstack = 0;	993	coro->mainstack = 0;
1006	}	994	}
1007		995
1008	deallocate_stack (coro);	996	deallocate_stack (coro);
1009	SvREFCNT_dec (coro->args);	997	SvREFCNT_dec (coro->args);
1010	Safefree (coro);	998	Safefree (coro);
1011
1012	void
1013	flush()
1014	CODE:
1015	#ifdef MAY_FLUSH
1016	flush_padlist_cache ();
1017	#endif
1018		999
1019	void	1000	void
1020	_exit(code)	1001	_exit(code)
1021	int code	1002	int code
1022	PROTOTYPE: $	1003	PROTOTYPE: $
1023	CODE:	1004	CODE:
1024	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
1025	_exit (code);	1005	_exit (code);
1026	#else
1027	signal (SIGTERM, SIG_DFL);
1028	raise (SIGTERM);
1029	exit (code);
1030	#endif
1031		1006
1032	MODULE = Coro::State PACKAGE = Coro::Cont	1007	MODULE = Coro::State PACKAGE = Coro::Cont
1033
1034	# this is slightly dirty (should expose a c-level api)
1035		1008
1036	void	1009	void
1037	yield(...)	1010	yield(...)
1038	PROTOTYPE: @	1011	PROTOTYPE: @
1039	CODE:	1012	CODE:
1040	static SV *returnstk;	1013	SV *yieldstack;
1041	SV *sv;	1014	SV *sv;
1042	AV *defav = GvAV (PL_defgv);	1015	AV *defav = GvAV (PL_defgv);
1043	struct coro prev, next;	1016	struct coro prev, next;
1044		1017
1045	if (!returnstk)	1018	yieldstack = *hv_fetch (
1046	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));	1019	(HV *)SvRV (GvSV (coro_current)),
		1020	"yieldstack", sizeof ("yieldstack") - 1,
		1021	0
		1022	);
1047		1023
1048	/* set up @_ -- ugly */	1024	/* set up @_ -- ugly */
1049	av_clear (defav);	1025	av_clear (defav);
1050	av_fill (defav, items - 1);	1026	av_fill (defav, items - 1);
1051	while (items--)	1027	while (items--)
1052	av_store (defav, items, SvREFCNT_inc (ST(items)));	1028	av_store (defav, items, SvREFCNT_inc (ST(items)));
1053		1029
1054	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1055	sv = av_pop ((AV *)SvRV (returnstk));	1030	sv = av_pop ((AV *)SvRV (yieldstack));
1056	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1031	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));
1057	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1032	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
1058	SvREFCNT_dec (sv);	1033	SvREFCNT_dec (sv);
1059		1034
1060	transfer(aTHX_ prev, next, 0);	1035	transfer (aTHX_ prev, next, 0);
1061		1036
1062	MODULE = Coro::State PACKAGE = Coro	1037	MODULE = Coro::State PACKAGE = Coro
1063
1064	# this is slightly dirty (should expose a c-level api)
1065		1038
1066	BOOT:	1039	BOOT:
1067	{	1040	{
1068	int i;	1041	int i;
1069	HV *stash = gv_stashpv ("Coro", TRUE);	1042	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1089	coroapi.ready = api_ready;	1062	coroapi.ready = api_ready;
1090	coroapi.nready = &coro_nready;	1063	coroapi.nready = &coro_nready;
1091	coroapi.current = coro_current;	1064	coroapi.current = coro_current;
1092		1065
1093	GCoroAPI = &coroapi;	1066	GCoroAPI = &coroapi;
1094	sv_setiv(sv, (IV)&coroapi);	1067	sv_setiv (sv, (IV)&coroapi);
1095	SvREADONLY_on(sv);	1068	SvREADONLY_on (sv);
1096	}	1069	}
1097	}	1070	}
		1071
		1072	#if !PERL_MICRO
1098		1073
1099	void	1074	void
1100	ready(self)	1075	ready(self)
1101	SV * self	1076	SV * self
1102	PROTOTYPE: $	1077	PROTOTYPE: $
1103	CODE:	1078	CODE:
1104	api_ready (self);	1079	api_ready (self);
		1080
		1081	#endif
1105		1082
1106	int	1083	int
1107	nready(...)	1084	nready(...)
1108	PROTOTYPE:	1085	PROTOTYPE:
1109	CODE:	1086	CODE:
…		…
1121	cede(...)	1098	cede(...)
1122	PROTOTYPE:	1099	PROTOTYPE:
1123	CODE:	1100	CODE:
1124	api_cede ();	1101	api_cede ();
1125		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 1.48 by pcg, Sat Nov 15 03:53:37 2003 UTC vs. Revision 1.81 by root, Fri Nov 3 00:56:03 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.48 by pcg, Sat Nov 15 03:53:37 2003 UTC vs.
Revision 1.81 by root, Fri Nov 3 00:56:03 2006 UTC