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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.37 by root, Tue Oct 9 00:39:11 2001 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 "libcoro/coro.c"	9	#include "patchlevel.h"
6		10
		11	#if PERL_VERSION < 6
		12	# ifndef PL_ppaddr
		13	# define PL_ppaddr ppaddr
		14	# endif
		15	# ifndef call_sv
		16	# define call_sv perl_call_sv
		17	# endif
		18	# ifndef get_sv
		19	# define get_sv perl_get_sv
		20	# endif
		21	# ifndef get_cv
		22	# define get_cv perl_get_cv
		23	# endif
		24	# ifndef IS_PADGV
		25	# define IS_PADGV(v) 0
		26	# endif
		27	# ifndef IS_PADCONST
		28	# define IS_PADCONST(v) 0
		29	# endif
		30	#endif
		31
7	#include <signal.h>	32	#include <errno.h>
		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
8		41
9	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
10	# include <unistd.h>	43	# include <unistd.h>
11	# include <sys/mman.h>	44	# include <sys/mman.h>
12	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
14	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
15	# else	48	# else
16	# undef HAVE_MMAP	49	# undef HAVE_MMAP
17	# endif	50	# endif
18	# 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
19	#endif	59	# endif
20		60	#endif
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22		61
23	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	63	#define UCORO_STATE "_coro_state"
25		64
26	/* 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
…		…
32		71
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	72	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		73
35	#include "CoroAPI.h"	74	#include "CoroAPI.h"
36		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
37	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 */
38		91
39	/* 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... */
40	typedef struct {	93	typedef struct {
41	int refcnt; /* pointer reference counter */	94	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	95	int usecnt; /* shared by how many coroutines */
…		…
68	AV *curstack;	121	AV *curstack;
69	AV *mainstack;	122	AV *mainstack;
70	SV **stack_sp;	123	SV **stack_sp;
71	OP *op;	124	OP *op;
72	SV **curpad;	125	SV **curpad;
		126	AV *comppad;
		127	CV *compcv;
73	SV **stack_base;	128	SV **stack_base;
74	SV **stack_max;	129	SV **stack_max;
75	SV **tmps_stack;	130	SV **tmps_stack;
76	I32 tmps_floor;	131	I32 tmps_floor;
77	I32 tmps_ix;	132	I32 tmps_ix;
…		…
86	I32 savestack_ix;	141	I32 savestack_ix;
87	I32 savestack_max;	142	I32 savestack_max;
88	OP **retstack;	143	OP **retstack;
89	I32 retstack_ix;	144	I32 retstack_ix;
90	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
91	COP *curcop;	147	COP *curcop;
92	JMPENV *top_env;	148	JMPENV *top_env;
93		149
94	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
95	AV *args;	151	AV *args;
96	};	152	};
97		153
98	typedef struct coro *Coro__State;	154	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	155	typedef struct coro *Coro__State_or_hashref;
100		156
101	static AV main_mainstack; / used to differentiate between $main and others */	157	static AV *
102	static HV *coro_state_stash;	158	coro_clone_padlist (pTHX_ CV *cv)
103	static SV *ucoro_state_sv;
104	static U32 ucoro_state_hash;
105	static HV *padlist_cache;
106
107	/* mostly copied from op.c:cv_clone2 */
108	STATIC AV *
109	clone_padlist (AV *protopadlist)
110	{	159	{
111	AV *av;	160	AV *padlist = CvPADLIST (cv);
112	I32 ix;
113	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
114	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
115	SV **pname = AvARRAY (protopad_name);
116	SV **ppad = AvARRAY (protopad);
117	I32 fname = AvFILLp (protopad_name);
118	I32 fpad = AvFILLp (protopad);
119	AV newpadlist, newpad_name, *newpad;	161	AV newpadlist, newpad;
120	SV **npad;
121
122	newpad_name = newAV ();
123	for (ix = fname; ix >= 0; ix--)
124	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
125
126	newpad = newAV ();
127	av_fill (newpad, AvFILLp (protopad));
128	npad = AvARRAY (newpad);
129		162
130	newpadlist = newAV ();	163	newpadlist = newAV ();
131	AvREAL_off (newpadlist);	164	AvREAL_off (newpadlist);
132	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)));
133	av_store (newpadlist, 1, (SV *) newpad);	174	av_store (newpadlist, 1, (SV *)newpad);
134		175
135	av = newAV (); /* will be @_ */	176	return newpadlist;
136	av_extend (av, 0);	177	}
137	av_store (newpad, 0, (SV *) av);
138	AvFLAGS (av) = AVf_REIFY;
139		178
140	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))
141	{	184	{
142	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	185	I32 i = AvFILLp (padlist);
143	if (namesv && namesv != &PL_sv_undef)	186	while (i >= 0)
144	{	187	{
145	char name = SvPVX (namesv); / XXX */	188	SV **svp = av_fetch (padlist, i--, FALSE);
146	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	189	if (svp)
147	{ /* lexical from outside? */
148	npad[ix] = SvREFCNT_inc (ppad[ix]);
149	}	190	{
150	else
151	{ /* our own lexical */
152	SV *sv;	191	SV *sv;
153	if (*name == '&')	192	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
154	sv = SvREFCNT_inc (ppad[ix]);	193	SvREFCNT_dec (sv);
155	else if (*name == '@')	194
156	sv = (SV *) newAV ();	195	SvREFCNT_dec (*svp);
157	else if (*name == '%')
158	sv = (SV *) newHV ();
159	else
160	sv = NEWSV (0, 0);
161	if (!SvPADBUSY (sv))
162	SvPADMY_on (sv);
163	npad[ix] = sv;
164	}	196	}
165	}	197	}
166	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	198
167	{	199	SvREFCNT_dec ((SV*)padlist);
168	npad[ix] = SvREFCNT_inc (ppad[ix]);
169	}
170	else
171	{
172	SV *sv = NEWSV (0, 0);
173	SvPADTMP_on (sv);
174	npad[ix] = sv;
175	}
176	}	200	}
		201	}
177		202
178	#if 0 /* return -ENOTUNDERSTOOD */	203	static int
179	/* 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;
180		208
181	for (ix = fpad; ix > 0; ix--) {	209	/* casting is fun. */
182	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	210	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
183	if (namesv	211	free_padlist (aTHX_ padlist);
184	&& namesv != &PL_sv_undef	212
185	&& !(SvFLAGS(namesv) & SVf_FAKE)	213	SvREFCNT_dec (av);
186	&& *SvPVX(namesv) == '&'	214
187	&& CvCLONE(ppad[ix]))	215	return 0;
188	{	216	}
189	CV kid = cv_clone((CV)ppad[ix]);	217
190	SvREFCNT_dec(ppad[ix]);	218	#define PERL_MAGIC_coro PERL_MAGIC_ext
191	CvCLONE_on(kid);	219
192	SvPADMY_on(kid);	220	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
193	npad[ix] = (SV*)kid;	221
194	}	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 ();
195	}	255	}
196	#endif
197		256
198	return newpadlist;
199	}
200
201	#ifdef MAY_FLUSH
202	STATIC void
203	free_padlist (AV *padlist)
204	{
205	/* may be during global destruction */
206	if (SvREFCNT(padlist))
207	{
208	I32 i = AvFILLp(padlist);
209	while (i >= 0)
210	{
211	SV **svp = av_fetch(padlist, i--, FALSE);
212	SV sv = svp ? svp : Nullsv;
213	if (sv)
214	SvREFCNT_dec(sv);
215	}
216
217	SvREFCNT_dec((SV*)padlist);
218	}
219	}
220	#endif
221
222	/* the next two functions merely cache the padlists */
223	STATIC void
224	get_padlist (CV *cv)
225	{
226	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
227
228	if (he && AvFILLp ((AV )he) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
230	else
231	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
232	}
233
234	STATIC void
235	put_padlist (CV *cv)
236	{
237	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
238
239	if (SvTYPE (*he) != SVt_PVAV)
240	{
241	SvREFCNT_dec (*he);
242	he = (SV )newAV ();
243	}
244
245	av_push ((AV )he, (SV *)CvPADLIST (cv));	257	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
246	}	258	}
247
248	#ifdef MAY_FLUSH
249	STATIC void
250	flush_padlist_cache ()
251	{
252	HV *hv = padlist_cache;
253	padlist_cache = newHV ();
254
255	if (hv_iterinit (hv))
256	{
257	HE *he;
258	AV *padlist;
259
260	while (!!(he = hv_iternext (hv)))
261	{
262	AV av = (AV )HeVAL(he);
263
264	/* casting is fun. */
265	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
266	free_padlist (padlist);
267	}
268	}
269
270	SvREFCNT_dec (hv);
271	}
272	#endif
273		259
274	#define SB do {	260	#define SB do {
275	#define SE } while (0)	261	#define SE } while (0)
276		262
277	#define LOAD(state) load_state(aTHX_ (state));	263	#define LOAD(state) load_state(aTHX_ (state));
278	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	264	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279		265
280	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	266	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281		267
282	static void	268	static void
283	load_state(pTHX_ Coro__State c)	269	load_state(pTHX_ Coro__State c)
284	{	270	{
285	PL_dowarn = c->dowarn;	271	PL_dowarn = c->dowarn;
…		…
289	PL_curstack = c->curstack;	275	PL_curstack = c->curstack;
290	PL_mainstack = c->mainstack;	276	PL_mainstack = c->mainstack;
291	PL_stack_sp = c->stack_sp;	277	PL_stack_sp = c->stack_sp;
292	PL_op = c->op;	278	PL_op = c->op;
293	PL_curpad = c->curpad;	279	PL_curpad = c->curpad;
		280	PL_comppad = c->comppad;
		281	PL_compcv = c->compcv;
294	PL_stack_base = c->stack_base;	282	PL_stack_base = c->stack_base;
295	PL_stack_max = c->stack_max;	283	PL_stack_max = c->stack_max;
296	PL_tmps_stack = c->tmps_stack;	284	PL_tmps_stack = c->tmps_stack;
297	PL_tmps_floor = c->tmps_floor;	285	PL_tmps_floor = c->tmps_floor;
298	PL_tmps_ix = c->tmps_ix;	286	PL_tmps_ix = c->tmps_ix;
…		…
304	PL_scopestack_ix = c->scopestack_ix;	292	PL_scopestack_ix = c->scopestack_ix;
305	PL_scopestack_max = c->scopestack_max;	293	PL_scopestack_max = c->scopestack_max;
306	PL_savestack = c->savestack;	294	PL_savestack = c->savestack;
307	PL_savestack_ix = c->savestack_ix;	295	PL_savestack_ix = c->savestack_ix;
308	PL_savestack_max = c->savestack_max;	296	PL_savestack_max = c->savestack_max;
		297	#if PERL_VERSION < 9
309	PL_retstack = c->retstack;	298	PL_retstack = c->retstack;
310	PL_retstack_ix = c->retstack_ix;	299	PL_retstack_ix = c->retstack_ix;
311	PL_retstack_max = c->retstack_max;	300	PL_retstack_max = c->retstack_max;
		301	#endif
		302	PL_curpm = c->curpm;
312	PL_curcop = c->curcop;	303	PL_curcop = c->curcop;
313	PL_top_env = c->top_env;	304	PL_top_env = c->top_env;
314		305
315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
325	{	316	{
326	AV padlist = (AV )POPs;	317	AV padlist = (AV )POPs;
327		318
328	if (padlist)	319	if (padlist)
329	{	320	{
330	put_padlist (cv); /* mark this padlist as available */	321	put_padlist (aTHX_ cv); /* mark this padlist as available */
331	CvPADLIST(cv) = padlist;	322	CvPADLIST(cv) = padlist;
332	#ifdef USE_THREADS
333	/CvOWNER(cv) = (struct perl_thread )POPs;*/
334	#endif
335	}	323	}
336		324
337	++CvDEPTH(cv);	325	++CvDEPTH(cv);
338	}	326	}
339		327
…		…
366	if (CxTYPE(cx) == CXt_SUB)	354	if (CxTYPE(cx) == CXt_SUB)
367	{	355	{
368	CV *cv = cx->blk_sub.cv;	356	CV *cv = cx->blk_sub.cv;
369	if (CvDEPTH(cv))	357	if (CvDEPTH(cv))
370	{	358	{
371	#ifdef USE_THREADS
372	/XPUSHs ((SV )CvOWNER(cv));*/
373	/CvOWNER(cv) = 0;/
374	/error must unlock this cv etc.. etc.../
375	#endif
376	EXTEND (SP, CvDEPTH(cv)*2);	359	EXTEND (SP, CvDEPTH(cv)*2);
377		360
378	while (--CvDEPTH(cv))	361	while (--CvDEPTH(cv))
379	{	362	{
380	/* this tells the restore code to increment CvDEPTH */	363	/* this tells the restore code to increment CvDEPTH */
…		…
383	}	366	}
384		367
385	PUSHs ((SV *)CvPADLIST(cv));	368	PUSHs ((SV *)CvPADLIST(cv));
386	PUSHs ((SV *)cv);	369	PUSHs ((SV *)cv);
387		370
388	get_padlist (cv); /* this is a monster */	371	get_padlist (aTHX_ cv);
389	}	372	}
390	}	373	}
		374	#ifdef CXt_FORMAT
391	else if (CxTYPE(cx) == CXt_FORMAT)	375	else if (CxTYPE(cx) == CXt_FORMAT)
392	{	376	{
393	/* I never used formats, so how should I know how these are implemented? */	377	/* I never used formats, so how should I know how these are implemented? */
394	/* my bold guess is as a simple, plain sub... */	378	/* my bold guess is as a simple, plain sub... */
395	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	379	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396	}	380	}
		381	#endif
397	}	382	}
398		383
399	if (top_si->si_type == PERLSI_MAIN)	384	if (top_si->si_type == PERLSI_MAIN)
400	break;	385	break;
401		386
…		…
418	c->curstack = PL_curstack;	403	c->curstack = PL_curstack;
419	c->mainstack = PL_mainstack;	404	c->mainstack = PL_mainstack;
420	c->stack_sp = PL_stack_sp;	405	c->stack_sp = PL_stack_sp;
421	c->op = PL_op;	406	c->op = PL_op;
422	c->curpad = PL_curpad;	407	c->curpad = PL_curpad;
		408	c->comppad = PL_comppad;
		409	c->compcv = PL_compcv;
423	c->stack_base = PL_stack_base;	410	c->stack_base = PL_stack_base;
424	c->stack_max = PL_stack_max;	411	c->stack_max = PL_stack_max;
425	c->tmps_stack = PL_tmps_stack;	412	c->tmps_stack = PL_tmps_stack;
426	c->tmps_floor = PL_tmps_floor;	413	c->tmps_floor = PL_tmps_floor;
427	c->tmps_ix = PL_tmps_ix;	414	c->tmps_ix = PL_tmps_ix;
…		…
433	c->scopestack_ix = PL_scopestack_ix;	420	c->scopestack_ix = PL_scopestack_ix;
434	c->scopestack_max = PL_scopestack_max;	421	c->scopestack_max = PL_scopestack_max;
435	c->savestack = PL_savestack;	422	c->savestack = PL_savestack;
436	c->savestack_ix = PL_savestack_ix;	423	c->savestack_ix = PL_savestack_ix;
437	c->savestack_max = PL_savestack_max;	424	c->savestack_max = PL_savestack_max;
		425	#if PERL_VERSION < 9
438	c->retstack = PL_retstack;	426	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;	427	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;	428	c->retstack_max = PL_retstack_max;
		429	#endif
		430	c->curpm = PL_curpm;
441	c->curcop = PL_curcop;	431	c->curcop = PL_curcop;
442	c->top_env = PL_top_env;	432	c->top_env = PL_top_env;
443	}	433	}
444		434
445	/*	435	/*
446	* allocate various perl stacks. This is an exact copy	436	* allocate various perl stacks. This is an exact copy
447	* of perl.c:init_stacks, except that it uses less memory	437	* of perl.c:init_stacks, except that it uses less memory
448	* on the assumption that coroutines do not usually need	438	* on the (sometimes correct) assumption that coroutines do
449	* a lot of stackspace.	439	* not usually need a lot of stackspace.
450	*/	440	*/
451	STATIC void	441	static void
452	coro_init_stacks (pTHX)	442	coro_init_stacks (pTHX)
453	{	443	{
		444	LOCK;
		445
454	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	446	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455	PL_curstackinfo->si_type = PERLSI_MAIN;	447	PL_curstackinfo->si_type = PERLSI_MAIN;
456	PL_curstack = PL_curstackinfo->si_stack;	448	PL_curstack = PL_curstackinfo->si_stack;
457	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	449	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458		450
…		…
467		459
468	New(54,PL_markstack,16,I32);	460	New(54,PL_markstack,16,I32);
469	PL_markstack_ptr = PL_markstack;	461	PL_markstack_ptr = PL_markstack;
470	PL_markstack_max = PL_markstack + 16;	462	PL_markstack_max = PL_markstack + 16;
471		463
		464	#ifdef SET_MARK_OFFSET
472	SET_MARK_OFFSET;	465	SET_MARK_OFFSET;
		466	#endif
473		467
474	New(54,PL_scopestack,16,I32);	468	New(54,PL_scopestack,16,I32);
475	PL_scopestack_ix = 0;	469	PL_scopestack_ix = 0;
476	PL_scopestack_max = 16;	470	PL_scopestack_max = 16;
477		471
478	New(54,PL_savestack,96,ANY);	472	New(54,PL_savestack,96,ANY);
479	PL_savestack_ix = 0;	473	PL_savestack_ix = 0;
480	PL_savestack_max = 96;	474	PL_savestack_max = 96;
481		475
		476	#if PERL_VERSION < 9
482	New(54,PL_retstack,8,OP*);	477	New(54,PL_retstack,8,OP*);
483	PL_retstack_ix = 0;	478	PL_retstack_ix = 0;
484	PL_retstack_max = 8;	479	PL_retstack_max = 8;
		480	#endif
		481
		482	UNLOCK;
485	}	483	}
486		484
487	/*	485	/*
488	* destroy the stacks, the callchain etc...	486	* destroy the stacks, the callchain etc...
489	* still there is a memleak of 128 bytes...
490	*/	487	*/
491	STATIC void	488	static void
492	destroy_stacks(pTHX)	489	destroy_stacks(pTHX)
493	{	490	{
494	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
495	{	492	{
496	/* is this ugly, I ask? */	493	/* is this ugly, I ask? */
497	while (PL_scopestack_ix)	494	LEAVE_SCOPE (0);
498	LEAVE;
499		495
500	/* sure it is, but more important: is it correct?? :/ */	496	/* sure it is, but more important: is it correct?? :/ */
501	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
502	FREETMPS;	497	FREETMPS;
		498
		499	/POPSTACK_TO (PL_mainstack);//D//use/
503	}	500	}
504		501
505	while (PL_curstackinfo->si_next)	502	while (PL_curstackinfo->si_next)
506	PL_curstackinfo = PL_curstackinfo->si_next;	503	PL_curstackinfo = PL_curstackinfo->si_next;
507		504
508	while (PL_curstackinfo)	505	while (PL_curstackinfo)
509	{	506	{
510	PERL_SI *p = PL_curstackinfo->si_prev;	507	PERL_SI *p = PL_curstackinfo->si_prev;
511		508
512	{	509	{ /D//remove/
513	dSP;	510	dSP;
514	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	511	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515	PUTBACK; /* possibly superfluous */	512	PUTBACK; /* possibly superfluous */
516	}	513	}
517		514
518	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
519	{	516	{
520	dounwind(-1);	517	dounwind (-1);/D//remove/
521	SvREFCNT_dec(PL_curstackinfo->si_stack);	518	SvREFCNT_dec (PL_curstackinfo->si_stack);
522	}	519	}
523		520
524	Safefree(PL_curstackinfo->si_cxstack);	521	Safefree (PL_curstackinfo->si_cxstack);
525	Safefree(PL_curstackinfo);	522	Safefree (PL_curstackinfo);
526	PL_curstackinfo = p;	523	PL_curstackinfo = p;
527	}	524	}
528		525
529	Safefree(PL_tmps_stack);	526	Safefree (PL_tmps_stack);
530	Safefree(PL_markstack);	527	Safefree (PL_markstack);
531	Safefree(PL_scopestack);	528	Safefree (PL_scopestack);
532	Safefree(PL_savestack);	529	Safefree (PL_savestack);
		530	#if PERL_VERSION < 9
533	Safefree(PL_retstack);	531	Safefree (PL_retstack);
		532	#endif
534	}	533	}
535		534
536	static void	535	static void
537	allocate_stack (Coro__State ctx, int alloc)	536	allocate_stack (Coro__State ctx, int alloc)
538	{	537	{
…		…
541	New (0, stack, 1, coro_stack);	540	New (0, stack, 1, coro_stack);
542		541
543	stack->refcnt = 1;	542	stack->refcnt = 1;
544	stack->usecnt = 1;	543	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;	544	stack->gencnt = ctx->gencnt = 0;
		545
546	if (alloc)	546	if (alloc)
547	{	547	{
548	#if HAVE_MMAP	548	#if HAVE_MMAP
549	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 */
550	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);
551	if (stack->sptr == (void *)-1)	551	if (stack->sptr != (void *)-1)
552	#endif
553	{	552	{
554	/FIXME//D//* reasonable stack size! */	553	# if STACKGUARD
		554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		555	# endif
		556	}
		557	else
		558	#endif
		559	{
555	stack->ssize = -4096 * sizeof (long);	560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
556	New (0, stack->sptr, 4096, long);	561	New (0, stack->sptr, STACKSIZE, long);
557	}	562	}
558	}	563	}
559	else	564	else
560	stack->sptr = 0;	565	stack->sptr = 0;
561		566
…		…
575	{	580	{
576	#ifdef HAVE_MMAP	581	#ifdef HAVE_MMAP
577	if (stack->ssize > 0 && stack->sptr)	582	if (stack->ssize > 0 && stack->sptr)
578	munmap (stack->sptr, stack->ssize);	583	munmap (stack->sptr, stack->ssize);
579	else	584	else
580	#else	585	#endif
581	Safefree (stack->sptr);	586	Safefree (stack->sptr);
582	#endif	587
583	Safefree (stack);	588	Safefree (stack);
584	}	589	}
585	else if (ctx->gencnt == stack->gencnt)	590	else if (ctx->gencnt == stack->gencnt)
586	--stack->usecnt;	591	--stack->usecnt;
587	}	592	}
…		…
591	setup_coro (void *arg)	596	setup_coro (void *arg)
592	{	597	{
593	/*	598	/*
594	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
595	*/	600	*/
		601	dTHX;
596	dSP;	602	dSP;
597	Coro__State ctx = (Coro__State)arg;	603	Coro__State ctx = (Coro__State)arg;
598	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
599		605
600	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
601	/PL_curcop = 0;/	607	/PL_curcop = 0;/
602	/PL_in_eval = PL_in_eval;/ /* inherit */	608	/PL_in_eval = PL_in_eval;/ /* inherit */
603	SvREFCNT_dec (GvAV (PL_defgv));	609	SvREFCNT_dec (GvAV (PL_defgv));
604	GvAV (PL_defgv) = ctx->args;	610	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605		611
606	SPAGAIN;	612	SPAGAIN;
607		613
608	if (ctx->stack)	614	if (ctx->stack)
609	{	615	{
…		…
620	}	626	}
621	else	627	else
622	{	628	{
623	UNOP myop;	629	UNOP myop;
624		630
625	PL_op = (OP *)&myop;
626
627	Zero(&myop, 1, UNOP);	631	Zero(&myop, 1, UNOP);
628	myop.op_next = Nullop;	632	myop.op_next = Nullop;
629	myop.op_flags = OPf_WANT_VOID;	633	myop.op_flags = OPf_WANT_VOID;
		634
		635	PL_op = (OP *)&myop;
630		636
631	PUSHMARK(SP);	637	PUSHMARK(SP);
632	XPUSHs (sub_init);	638	XPUSHs (sub_init);
633	/*	639	/*
634	* the next line is slightly wrong, as PL_op->op_next	640	* the next line is slightly wrong, as PL_op->op_next
…		…
636	* that doesn't matter, though, since it is only	642	* that doesn't matter, though, since it is only
637	* pp_nextstate and we never return...	643	* pp_nextstate and we never return...
638	* ah yes, and I don't care anyways ;)	644	* ah yes, and I don't care anyways ;)
639	*/	645	*/
640	PUTBACK;	646	PUTBACK;
641	PL_op = pp_entersub();	647	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642	SPAGAIN;	648	SPAGAIN;
643		649
644	ENTER; /* necessary e.g. for dounwind */	650	ENTER; /* necessary e.g. for dounwind */
645	}	651	}
646	}	652	}
…		…
649	continue_coro (void *arg)	655	continue_coro (void *arg)
650	{	656	{
651	/*	657	/*
652	* this is a _very_ stripped down perl interpreter ;)	658	* this is a _very_ stripped down perl interpreter ;)
653	*/	659	*/
		660	dTHX;
654	Coro__State ctx = (Coro__State)arg;	661	Coro__State ctx = (Coro__State)arg;
655	JMPENV coro_start_env;
656		662
657	/* same as JMPENV_BOOTSTRAP */
658	Zero(&coro_start_env, 1, JMPENV);
659	coro_start_env.je_ret = -1;
660	coro_start_env.je_mustcatch = TRUE;
661	PL_top_env = &coro_start_env;	663	PL_top_env = &PL_start_env;
662		664
663	ctx->cursp = 0;	665	ctx->cursp = 0;
664	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
665	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
666		668
667	abort ();	669	abort ();
668	}	670	}
669		671
670	STATIC void	672	static void
671	transfer(pTHX_ struct coro prev, struct coro next, int flags)	673	transfer (pTHX_ struct coro prev, struct coro next, int flags)
672	{	674	{
673	dSTACKLEVEL;	675	dSTACKLEVEL;
674	static struct coro *xnext;
675		676
676	if (prev != next)	677	if (prev != next)
677	{	678	{
678	xnext = next;	679	/* has this coro been created yet? */
679
680	if (next->mainstack)	680	if (next->mainstack)
681	{	681	{
		682	LOCK;
682	SAVE (prev, flags);	683	SAVE (prev, flags);
683	LOAD (next);	684	LOAD (next);
		685	UNLOCK;
684		686
685	/* mark this state as in-use */	687	/* mark this state as in-use */
686	next->mainstack = 0;	688	next->mainstack = 0;
687	next->tmps_ix = -2;	689	next->tmps_ix = -2;
688		690
…		…
707	continue_coro, (void *)next,	709	continue_coro, (void *)next,
708	next->stack->sptr, labs (next->stack->ssize));	710	next->stack->sptr, labs (next->stack->ssize));
709	}	711	}
710		712
711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		714	prev->cursp = stacklevel;
712	/* don't add any code here */	715	/* don't add any code here */
713	}	716	}
714		717	else
		718	next->cursp = stacklevel;
715	}	719	}
716	else if (next->tmps_ix == -2)	720	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	721	croak ("tried to transfer to running coroutine");
718	else	722	else
719	{	723	{
		724	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	725	SAVE (prev, -1); /* first get rid of the old state */
		726	UNLOCK;
721		727
		728	/* create the coroutine for the first time */
722	if (flags & TRANSFER_SAVE_CCTXT)	729	if (flags & TRANSFER_SAVE_CCTXT)
723	{	730	{
724	if (!prev->stack)	731	if (!prev->stack)
725	allocate_stack (prev, 0);	732	allocate_stack (prev, 0);
726		733
		734	/* the new coroutine starts with start_env again */
		735	PL_top_env = &PL_start_env;
		736
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	737	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	738	{
729	setup_coro (next);	739	setup_coro (next);
		740	next->cursp = stacklevel;
730		741
731	prev->stack->refcnt++;	742	prev->stack->refcnt++;
732	prev->stack->usecnt++;	743	prev->stack->usecnt++;
733	next->stack = prev->stack;	744	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	745	next->gencnt = prev->gencnt;
735	}	746	}
736	else	747	else
737	{	748	{
		749	assert (!next->stack);
738	allocate_stack (next, 1);	750	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	751	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	752	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	753	next->stack->sptr, labs (next->stack->ssize));
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		755	prev->cursp = stacklevel;
743	/* don't add any code here */	756	/* don't add any code here */
744	}	757	}
745	}	758	}
746	else	759	else
		760	{
747	setup_coro (next);	761	setup_coro (next);
		762	next->cursp = stacklevel;
		763	}
748	}	764	}
749
750	/*
751	* xnext is now either prev or next, depending on wether
752	* we switched the c stack or not. that's why i use a global
753	* variable, that should become thread-specific at one point.
754	*/
755	xnext->cursp = stacklevel;
756	}	765	}
757	}
758		766
759	static struct coro *	767	LOCK;
760	sv_to_coro (SV arg, const char funcname, const char *varname)	768	if (coro_mortal)
761	{
762	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763	{	769	{
764	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	770	SvREFCNT_dec (coro_mortal);
765		771	coro_mortal = 0;
766	if (!he)
767	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
768
769	arg = HeVAL(he);
770	}	772	}
771		773	UNLOCK;
		774	}
		775
		776	#define SV_CORO(sv,func) \
		777	do { \
		778	if (SvROK (sv)) \
		779	sv = SvRV (sv); \
		780	\
		781	if (SvTYPE (sv) == SVt_PVHV) \
		782	{ \
		783	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		784	\
		785	if (!he) \
		786	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		787	\
		788	(sv) = SvRV (HeVAL(he)); \
		789	} \
		790	\
772	/* must also be changed inside Coro::Cont::yield */	791	/* must also be changed inside Coro::Cont::yield */ \
773	if (SvROK(arg) && SvOBJECT(SvRV(arg))	792	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
774	&& SvSTASH(SvRV(arg)) == coro_state_stash)
775	return (struct coro ) SvIV((SV)SvRV(arg));
776
777	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	793	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778	/NORETURN/	794	\
779	}	795	} while(0)
		796
		797	#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
780		798
781	static void	799	static void
782	api_transfer(pTHX_ SV prev, SV next, int flags)	800	api_transfer(pTHX_ SV prev, SV next, int flags)
783	{	801	{
784	transfer(aTHX_	802	SV_CORO (prev, "Coro::transfer");
785	sv_to_coro (prev, "Coro::transfer", "prev"),	803	SV_CORO (next, "Coro::transfer");
786	sv_to_coro (next, "Coro::transfer", "next"),	804
787	flags);	805	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788	}	806	}
789		807
790	/ Coro ******************************************************************/	808	/ Coro ******************************************************************/
791		809
792	#define PRIO_MAX 3	810	#define PRIO_MAX 3
…		…
796	#define PRIO_IDLE -3	814	#define PRIO_IDLE -3
797	#define PRIO_MIN -4	815	#define PRIO_MIN -4
798		816
799	/* for Coro.pm */	817	/* for Coro.pm */
800	static GV coro_current, coro_idle;	818	static GV coro_current, coro_idle;
801	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	819	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
802	static int coro_nready;	820	static int coro_nready;
803		821
804	static void	822	static void
805	coro_enq (SV *sv)	823	coro_enq (pTHX_ SV *sv)
806	{	824	{
807	if (SvROK (sv))	825	SV **xprio;
808	{	826	int prio;
809	SV *hv = SvRV (sv);	827
810	if (SvTYPE (hv) == SVt_PVHV)	828	if (SvTYPE (sv) != SVt_PVHV)
811	{
812	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
813	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814
815	prio = prio > PRIO_MAX ? PRIO_MAX
816	: prio < PRIO_MIN ? PRIO_MIN
817	: prio;
818
819	av_push (coro_ready [prio - PRIO_MIN], sv);
820	coro_nready++;
821
822	return;
823	}
824	}
825
826	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++;
827	}	840	}
828		841
829	static SV *	842	static SV *
830	coro_deq (int min_prio)	843	coro_deq (pTHX_ int min_prio)
831	{	844	{
832	int prio = PRIO_MAX - PRIO_MIN;	845	int prio = PRIO_MAX - PRIO_MIN;
833		846
834	min_prio -= PRIO_MIN;	847	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	848	if (min_prio < 0)
836	min_prio = 0;	849	min_prio = 0;
837		850
838	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	851	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
839	if (av_len (coro_ready[prio]) >= 0)	852	if (AvFILLp (coro_ready [prio]) >= 0)
840	{	853	{
841	coro_nready--;	854	coro_nready--;
842	return av_shift (coro_ready[prio]);	855	return av_shift (coro_ready [prio]);
843	}	856	}
844		857
845	return 0;	858	return 0;
846	}	859	}
847		860
848	static void	861	static void
849	api_ready (SV *coro)	862	api_ready (SV *coro)
850	{	863	{
		864	dTHX;
		865
		866	if (SvROK (coro))
		867	coro = SvRV (coro);
		868
		869	LOCK;
851	coro_enq (SvREFCNT_inc (coro));	870	coro_enq (aTHX_ SvREFCNT_inc (coro));
		871	UNLOCK;
852	}	872	}
853		873
854	static void	874	static void
855	api_schedule (int cede)	875	api_schedule (void)
856	{	876	{
		877	dTHX;
		878
857	SV prev, next;	879	SV prev, next;
858		880
		881	LOCK;
		882
859	prev = GvSV (coro_current);	883	prev = SvRV (GvSV (coro_current));
860
861	if (cede)
862	coro_enq (SvREFCNT_inc (prev));
863
864	next = coro_deq (PRIO_MIN);	884	next = coro_deq (aTHX_ PRIO_MIN);
865		885
866	if (!next)	886	if (!next)
867	next = SvREFCNT_inc (GvSV (coro_idle));	887	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868		888
869	GvSV (coro_current) = SvREFCNT_inc (next);	889	/* free this only after the transfer */
870	transfer (aTHX_	890	coro_mortal = prev;
871	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	891	SV_CORO (prev, "Coro::schedule");
872	sv_to_coro (next, "Coro::schedule", "next coroutine"),	892
		893	SvRV (GvSV (coro_current)) = next;
		894
		895	SV_CORO (next, "Coro::schedule");
		896
		897	UNLOCK;
		898
		899	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	900	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
874	SvREFCNT_dec (next);	901	}
875	SvREFCNT_dec (prev);	902
		903	static void
		904	api_cede (void)
		905	{
		906	dTHX;
		907
		908	LOCK;
		909	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		910	UNLOCK;
		911
		912	api_schedule ();
876	}	913	}
877		914
878	MODULE = Coro::State PACKAGE = Coro::State	915	MODULE = Coro::State PACKAGE = Coro::State
879		916
880	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
881		918
882	BOOT:	919	BOOT:
883	{ /* {} 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
884	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	926	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	927	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	928	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887		929
888	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	930	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	931	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	932	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	933	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893	if (!padlist_cache)
894	padlist_cache = newHV ();
895		934
896	main_mainstack = PL_mainstack;	935	main_mainstack = PL_mainstack;
897		936
898	coroapi.ver = CORO_API_VERSION;	937	coroapi.ver = CORO_API_VERSION;
899	coroapi.transfer = api_transfer;	938	coroapi.transfer = api_transfer;
…		…
907	Coro__State coro;	946	Coro__State coro;
908		947
909	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	948	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
910	croak ("Coro::State::_newprocess expects an arrayref");	949	croak ("Coro::State::_newprocess expects an arrayref");
911		950
912	New (0, coro, 1, struct coro);	951	Newz (0, coro, 1, struct coro);
913		952
914	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	953	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915	coro->mainstack = 0; /* actual work is done inside transfer */	954	/coro->mainstack = 0; //actual work is done inside transfer /
916	coro->stack = 0;	955	/coro->stack = 0;/
917		956
918	RETVAL = coro;	957	RETVAL = coro;
919	OUTPUT:	958	OUTPUT:
920	RETVAL	959	RETVAL
921		960
922	void	961	void
923	transfer(prev, next, flags)	962	transfer(prev, next, flags)
924	Coro::State_or_hashref prev	963	SV *prev
925	Coro::State_or_hashref next	964	SV *next
926	int flags	965	int flags
927	PROTOTYPE: @	966	PROTOTYPE: @
928	CODE:	967	CODE:
929	PUTBACK;	968	PUTBACK;
		969	SV_CORO (next, "Coro::transfer");
		970	SV_CORO (prev, "Coro::transfer");
930	transfer (aTHX_ prev, next, flags);	971	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931	SPAGAIN;	972	SPAGAIN;
932		973
933	void	974	void
934	DESTROY(coro)	975	DESTROY(coro)
935	Coro::State coro	976	Coro::State coro
…		…
938	if (coro->mainstack && coro->mainstack != main_mainstack)	979	if (coro->mainstack && coro->mainstack != main_mainstack)
939	{	980	{
940	struct coro temp;	981	struct coro temp;
941		982
942	PUTBACK;	983	PUTBACK;
943	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	984	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944	LOAD(aTHX_ coro);	985	LOAD (aTHX_ coro);
945	SPAGAIN;	986	SPAGAIN;
946		987
947	destroy_stacks (aTHX);	988	destroy_stacks (aTHX);
948		989
949	LOAD((&temp)); /* this will get rid of defsv etc.. */	990	LOAD ((&temp)); /* this will get rid of defsv etc.. */
950	SPAGAIN;	991	SPAGAIN;
951		992
952	coro->mainstack = 0;	993	coro->mainstack = 0;
953	}	994	}
954		995
955	deallocate_stack (coro);	996	deallocate_stack (coro);
956		997	SvREFCNT_dec (coro->args);
957	Safefree (coro);	998	Safefree (coro);
958
959	void
960	flush()
961	CODE:
962	#ifdef MAY_FLUSH
963	flush_padlist_cache ();
964	#endif
965		999
966	void	1000	void
967	_exit(code)	1001	_exit(code)
968	int code	1002	int code
969	PROTOTYPE: $	1003	PROTOTYPE: $
970	CODE:	1004	CODE:
971	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
972	_exit (code);	1005	_exit (code);
973	#else
974	signal (SIGTERM, SIG_DFL);
975	raise (SIGTERM);
976	exit (code);
977	#endif
978		1006
979	MODULE = Coro::State PACKAGE = Coro::Cont	1007	MODULE = Coro::State PACKAGE = Coro::Cont
980
981	# this is slightly dirty (should expose a c-level api)
982		1008
983	void	1009	void
984	yield(...)	1010	yield(...)
985	PROTOTYPE: @	1011	PROTOTYPE: @
986	CODE:	1012	CODE:
987	static SV *returnstk;	1013	SV *yieldstack;
988	SV *sv;	1014	SV *sv;
989	AV *defav = GvAV (PL_defgv);	1015	AV *defav = GvAV (PL_defgv);
990	struct coro prev, next;	1016	struct coro prev, next;
991		1017
992	if (!returnstk)	1018	yieldstack = *hv_fetch (
993	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1019	(HV *)SvRV (GvSV (coro_current)),
		1020	"yieldstack", sizeof ("yieldstack") - 1,
		1021	0
		1022	);
994		1023
995	/* set up @_ -- ugly */	1024	/* set up @_ -- ugly */
996	av_clear (defav);	1025	av_clear (defav);
997	av_fill (defav, items - 1);	1026	av_fill (defav, items - 1);
998	while (items--)	1027	while (items--)
999	av_store (defav, items, SvREFCNT_inc (ST(items)));	1028	av_store (defav, items, SvREFCNT_inc (ST(items)));
1000		1029
1001	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1002	sv = av_pop ((AV *)SvRV (returnstk));	1030	sv = av_pop ((AV *)SvRV (yieldstack));
1003	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)));
1004	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)));
1005	SvREFCNT_dec (sv);	1033	SvREFCNT_dec (sv);
1006		1034
1007	transfer(aTHX_ prev, next, 0);	1035	transfer (aTHX_ prev, next, 0);
1008		1036
1009	MODULE = Coro::State PACKAGE = Coro	1037	MODULE = Coro::State PACKAGE = Coro
1010
1011	# this is slightly dirty (should expose a c-level api)
1012		1038
1013	BOOT:	1039	BOOT:
1014	{	1040	{
1015	int i;	1041	int i;
1016	HV *stash = gv_stashpv ("Coro", TRUE);	1042	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1030		1056
1031	{	1057	{
1032	SV *sv = perl_get_sv("Coro::API", 1);	1058	SV *sv = perl_get_sv("Coro::API", 1);
1033		1059
1034	coroapi.schedule = api_schedule;	1060	coroapi.schedule = api_schedule;
		1061	coroapi.cede = api_cede;
1035	coroapi.ready = api_ready;	1062	coroapi.ready = api_ready;
1036	coroapi.nready = &coro_nready;	1063	coroapi.nready = &coro_nready;
1037	coroapi.current = coro_current;	1064	coroapi.current = coro_current;
1038		1065
1039	GCoroAPI = &coroapi;	1066	GCoroAPI = &coroapi;
1040	sv_setiv(sv, (IV)&coroapi);	1067	sv_setiv (sv, (IV)&coroapi);
1041	SvREADONLY_on(sv);	1068	SvREADONLY_on (sv);
1042	}	1069	}
1043	}	1070	}
		1071
		1072	#if !PERL_MICRO
1044		1073
1045	void	1074	void
1046	ready(self)	1075	ready(self)
1047	SV * self	1076	SV * self
1048	PROTOTYPE: $	1077	PROTOTYPE: $
1049	CODE:	1078	CODE:
1050	api_ready (self);	1079	api_ready (self);
		1080
		1081	#endif
1051		1082
1052	int	1083	int
1053	nready(...)	1084	nready(...)
1054	PROTOTYPE:	1085	PROTOTYPE:
1055	CODE:	1086	CODE:
…		…
1058	RETVAL	1089	RETVAL
1059		1090
1060	void	1091	void
1061	schedule(...)	1092	schedule(...)
1062	PROTOTYPE:	1093	PROTOTYPE:
1063	ALIAS:
1064	cede = 1
1065	CODE:	1094	CODE:
1066	api_schedule (ix);	1095	api_schedule ();
1067		1096
		1097	void
		1098	cede(...)
		1099	PROTOTYPE:
		1100	CODE:
		1101	api_cede ();
		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 1.37 by root, Tue Oct 9 00:39:11 2001 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 1.37 by root, Tue Oct 9 00:39:11 2001 UTC vs.
Revision 1.83 by root, Mon Nov 20 22:32:44 2006 UTC