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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.44 by root, Sat Mar 22 18:50:32 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 "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 */
…		…
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;
73	AV *comppad;	126	AV *comppad;
		127	CV *compcv;
74	SV **stack_base;	128	SV **stack_base;
75	SV **stack_max;	129	SV **stack_max;
76	SV **tmps_stack;	130	SV **tmps_stack;
77	I32 tmps_floor;	131	I32 tmps_floor;
78	I32 tmps_ix;	132	I32 tmps_ix;
…		…
87	I32 savestack_ix;	141	I32 savestack_ix;
88	I32 savestack_max;	142	I32 savestack_max;
89	OP **retstack;	143	OP **retstack;
90	I32 retstack_ix;	144	I32 retstack_ix;
91	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
92	COP *curcop;	147	COP *curcop;
93	JMPENV *top_env;	148	JMPENV *top_env;
94		149
95	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
96	AV *args;	151	AV *args;
97	};	152	};
98		153
99	typedef struct coro *Coro__State;	154	typedef struct coro *Coro__State;
100	typedef struct coro *Coro__State_or_hashref;	155	typedef struct coro *Coro__State_or_hashref;
101		156
102	static AV main_mainstack; / used to differentiate between $main and others */	157	static AV *
103	static HV *coro_state_stash;	158	coro_clone_padlist (pTHX_ CV *cv)
104	static SV *ucoro_state_sv;
105	static U32 ucoro_state_hash;
106	static HV *padlist_cache;
107	static SV coro_mortal; / will be freed after next transfer */
108
109	/* mostly copied from op.c:cv_clone2 */
110	STATIC AV *
111	clone_padlist (AV *protopadlist)
112	{	159	{
113	AV *av;	160	AV *padlist = CvPADLIST (cv);
114	I32 ix;
115	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
116	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
117	SV **pname = AvARRAY (protopad_name);
118	SV **ppad = AvARRAY (protopad);
119	I32 fname = AvFILLp (protopad_name);
120	I32 fpad = AvFILLp (protopad);
121	AV newpadlist, newpad_name, *newpad;	161	AV newpadlist, newpad;
122	SV **npad;
123
124	newpad_name = newAV ();
125	for (ix = fname; ix >= 0; ix--)
126	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
127
128	newpad = newAV ();
129	av_fill (newpad, AvFILLp (protopad));
130	npad = AvARRAY (newpad);
131		162
132	newpadlist = newAV ();	163	newpadlist = newAV ();
133	AvREAL_off (newpadlist);	164	AvREAL_off (newpadlist);
134	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)));
135	av_store (newpadlist, 1, (SV *) newpad);	174	av_store (newpadlist, 1, (SV *)newpad);
136		175
137	av = newAV (); /* will be @_ */	176	return newpadlist;
138	av_extend (av, 0);	177	}
139	av_store (newpad, 0, (SV *) av);
140	AvFLAGS (av) = AVf_REIFY;
141		178
142	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))
143	{	184	{
144	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	185	I32 i = AvFILLp (padlist);
145	if (namesv && namesv != &PL_sv_undef)	186	while (i >= 0)
146	{	187	{
147	char name = SvPVX (namesv); / XXX */	188	SV **svp = av_fetch (padlist, i--, FALSE);
148	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	189	if (svp)
149	{ /* lexical from outside? */
150	npad[ix] = SvREFCNT_inc (ppad[ix]);
151	}	190	{
152	else
153	{ /* our own lexical */
154	SV *sv;	191	SV *sv;
155	if (*name == '&')	192	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
156	sv = SvREFCNT_inc (ppad[ix]);	193	SvREFCNT_dec (sv);
157	else if (*name == '@')	194
158	sv = (SV *) newAV ();	195	SvREFCNT_dec (*svp);
159	else if (*name == '%')
160	sv = (SV *) newHV ();
161	else
162	sv = NEWSV (0, 0);
163	if (!SvPADBUSY (sv))
164	SvPADMY_on (sv);
165	npad[ix] = sv;
166	}	196	}
167	}	197	}
168	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	198
169	{	199	SvREFCNT_dec ((SV*)padlist);
170	npad[ix] = SvREFCNT_inc (ppad[ix]);
171	}
172	else
173	{
174	SV *sv = NEWSV (0, 0);
175	SvPADTMP_on (sv);
176	npad[ix] = sv;
177	}
178	}	200	}
		201	}
179		202
180	#if 0 /* return -ENOTUNDERSTOOD */	203	static int
181	/* 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;
182		208
183	for (ix = fpad; ix > 0; ix--) {	209	/* casting is fun. */
184	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	210	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
185	if (namesv	211	free_padlist (aTHX_ padlist);
186	&& namesv != &PL_sv_undef	212
187	&& !(SvFLAGS(namesv) & SVf_FAKE)	213	SvREFCNT_dec (av);
188	&& *SvPVX(namesv) == '&'	214
189	&& CvCLONE(ppad[ix]))	215	return 0;
190	{	216	}
191	CV kid = cv_clone((CV)ppad[ix]);	217
192	SvREFCNT_dec(ppad[ix]);	218	#define PERL_MAGIC_coro PERL_MAGIC_ext
193	CvCLONE_on(kid);	219
194	SvPADMY_on(kid);	220	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
195	npad[ix] = (SV*)kid;	221
196	}	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 ();
197	}	255	}
198	#endif
199		256
200	return newpadlist;
201	}
202
203	#ifdef MAY_FLUSH
204	STATIC void
205	free_padlist (AV *padlist)
206	{
207	/* may be during global destruction */
208	if (SvREFCNT(padlist))
209	{
210	I32 i = AvFILLp(padlist);
211	while (i >= 0)
212	{
213	SV **svp = av_fetch(padlist, i--, FALSE);
214	SV sv = svp ? svp : Nullsv;
215	if (sv)
216	SvREFCNT_dec(sv);
217	}
218
219	SvREFCNT_dec((SV*)padlist);
220	}
221	}
222	#endif
223
224	/* the next two functions merely cache the padlists */
225	STATIC void
226	get_padlist (CV *cv)
227	{
228	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
229
230	if (he && AvFILLp ((AV )he) >= 0)
231	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
232	else
233	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
234	}
235
236	STATIC void
237	put_padlist (CV *cv)
238	{
239	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
240
241	if (SvTYPE (*he) != SVt_PVAV)
242	{
243	SvREFCNT_dec (*he);
244	he = (SV )newAV ();
245	}
246
247	av_push ((AV )he, (SV *)CvPADLIST (cv));	257	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
248	}	258	}
249
250	#ifdef MAY_FLUSH
251	STATIC void
252	flush_padlist_cache ()
253	{
254	HV *hv = padlist_cache;
255	padlist_cache = newHV ();
256
257	if (hv_iterinit (hv))
258	{
259	HE *he;
260	AV *padlist;
261
262	while (!!(he = hv_iternext (hv)))
263	{
264	AV av = (AV )HeVAL(he);
265
266	/* casting is fun. */
267	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
268	free_padlist (padlist);
269	}
270	}
271
272	SvREFCNT_dec (hv);
273	}
274	#endif
275		259
276	#define SB do {	260	#define SB do {
277	#define SE } while (0)	261	#define SE } while (0)
278		262
279	#define LOAD(state) load_state(aTHX_ (state));	263	#define LOAD(state) load_state(aTHX_ (state));
280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	264	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281		265
282	#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
283		267
284	static void	268	static void
285	load_state(pTHX_ Coro__State c)	269	load_state(pTHX_ Coro__State c)
286	{	270	{
287	PL_dowarn = c->dowarn;	271	PL_dowarn = c->dowarn;
…		…
292	PL_mainstack = c->mainstack;	276	PL_mainstack = c->mainstack;
293	PL_stack_sp = c->stack_sp;	277	PL_stack_sp = c->stack_sp;
294	PL_op = c->op;	278	PL_op = c->op;
295	PL_curpad = c->curpad;	279	PL_curpad = c->curpad;
296	PL_comppad = c->comppad;	280	PL_comppad = c->comppad;
		281	PL_compcv = c->compcv;
297	PL_stack_base = c->stack_base;	282	PL_stack_base = c->stack_base;
298	PL_stack_max = c->stack_max;	283	PL_stack_max = c->stack_max;
299	PL_tmps_stack = c->tmps_stack;	284	PL_tmps_stack = c->tmps_stack;
300	PL_tmps_floor = c->tmps_floor;	285	PL_tmps_floor = c->tmps_floor;
301	PL_tmps_ix = c->tmps_ix;	286	PL_tmps_ix = c->tmps_ix;
…		…
307	PL_scopestack_ix = c->scopestack_ix;	292	PL_scopestack_ix = c->scopestack_ix;
308	PL_scopestack_max = c->scopestack_max;	293	PL_scopestack_max = c->scopestack_max;
309	PL_savestack = c->savestack;	294	PL_savestack = c->savestack;
310	PL_savestack_ix = c->savestack_ix;	295	PL_savestack_ix = c->savestack_ix;
311	PL_savestack_max = c->savestack_max;	296	PL_savestack_max = c->savestack_max;
		297	#if PERL_VERSION < 9
312	PL_retstack = c->retstack;	298	PL_retstack = c->retstack;
313	PL_retstack_ix = c->retstack_ix;	299	PL_retstack_ix = c->retstack_ix;
314	PL_retstack_max = c->retstack_max;	300	PL_retstack_max = c->retstack_max;
		301	#endif
		302	PL_curpm = c->curpm;
315	PL_curcop = c->curcop;	303	PL_curcop = c->curcop;
316	PL_top_env = c->top_env;	304	PL_top_env = c->top_env;
317		305
318	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
319	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
328	{	316	{
329	AV padlist = (AV )POPs;	317	AV padlist = (AV )POPs;
330		318
331	if (padlist)	319	if (padlist)
332	{	320	{
333	put_padlist (cv); /* mark this padlist as available */	321	put_padlist (aTHX_ cv); /* mark this padlist as available */
334	CvPADLIST(cv) = padlist;	322	CvPADLIST(cv) = padlist;
335	#ifdef USE_THREADS
336	/CvOWNER(cv) = (struct perl_thread )POPs;*/
337	#endif
338	}	323	}
339		324
340	++CvDEPTH(cv);	325	++CvDEPTH(cv);
341	}	326	}
342		327
…		…
369	if (CxTYPE(cx) == CXt_SUB)	354	if (CxTYPE(cx) == CXt_SUB)
370	{	355	{
371	CV *cv = cx->blk_sub.cv;	356	CV *cv = cx->blk_sub.cv;
372	if (CvDEPTH(cv))	357	if (CvDEPTH(cv))
373	{	358	{
374	#ifdef USE_THREADS
375	/XPUSHs ((SV )CvOWNER(cv));*/
376	/CvOWNER(cv) = 0;/
377	/error must unlock this cv etc.. etc.../
378	#endif
379	EXTEND (SP, CvDEPTH(cv)*2);	359	EXTEND (SP, CvDEPTH(cv)*2);
380		360
381	while (--CvDEPTH(cv))	361	while (--CvDEPTH(cv))
382	{	362	{
383	/* this tells the restore code to increment CvDEPTH */	363	/* this tells the restore code to increment CvDEPTH */
…		…
386	}	366	}
387		367
388	PUSHs ((SV *)CvPADLIST(cv));	368	PUSHs ((SV *)CvPADLIST(cv));
389	PUSHs ((SV *)cv);	369	PUSHs ((SV *)cv);
390		370
391	get_padlist (cv); /* this is a monster */	371	get_padlist (aTHX_ cv);
392	}	372	}
393	}	373	}
		374	#ifdef CXt_FORMAT
394	else if (CxTYPE(cx) == CXt_FORMAT)	375	else if (CxTYPE(cx) == CXt_FORMAT)
395	{	376	{
396	/* 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? */
397	/* my bold guess is as a simple, plain sub... */	378	/* my bold guess is as a simple, plain sub... */
398	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");
399	}	380	}
		381	#endif
400	}	382	}
401		383
402	if (top_si->si_type == PERLSI_MAIN)	384	if (top_si->si_type == PERLSI_MAIN)
403	break;	385	break;
404		386
…		…
422	c->mainstack = PL_mainstack;	404	c->mainstack = PL_mainstack;
423	c->stack_sp = PL_stack_sp;	405	c->stack_sp = PL_stack_sp;
424	c->op = PL_op;	406	c->op = PL_op;
425	c->curpad = PL_curpad;	407	c->curpad = PL_curpad;
426	c->comppad = PL_comppad;	408	c->comppad = PL_comppad;
		409	c->compcv = PL_compcv;
427	c->stack_base = PL_stack_base;	410	c->stack_base = PL_stack_base;
428	c->stack_max = PL_stack_max;	411	c->stack_max = PL_stack_max;
429	c->tmps_stack = PL_tmps_stack;	412	c->tmps_stack = PL_tmps_stack;
430	c->tmps_floor = PL_tmps_floor;	413	c->tmps_floor = PL_tmps_floor;
431	c->tmps_ix = PL_tmps_ix;	414	c->tmps_ix = PL_tmps_ix;
…		…
437	c->scopestack_ix = PL_scopestack_ix;	420	c->scopestack_ix = PL_scopestack_ix;
438	c->scopestack_max = PL_scopestack_max;	421	c->scopestack_max = PL_scopestack_max;
439	c->savestack = PL_savestack;	422	c->savestack = PL_savestack;
440	c->savestack_ix = PL_savestack_ix;	423	c->savestack_ix = PL_savestack_ix;
441	c->savestack_max = PL_savestack_max;	424	c->savestack_max = PL_savestack_max;
		425	#if PERL_VERSION < 9
442	c->retstack = PL_retstack;	426	c->retstack = PL_retstack;
443	c->retstack_ix = PL_retstack_ix;	427	c->retstack_ix = PL_retstack_ix;
444	c->retstack_max = PL_retstack_max;	428	c->retstack_max = PL_retstack_max;
		429	#endif
		430	c->curpm = PL_curpm;
445	c->curcop = PL_curcop;	431	c->curcop = PL_curcop;
446	c->top_env = PL_top_env;	432	c->top_env = PL_top_env;
447	}	433	}
448		434
449	/*	435	/*
450	* allocate various perl stacks. This is an exact copy	436	* allocate various perl stacks. This is an exact copy
451	* of perl.c:init_stacks, except that it uses less memory	437	* of perl.c:init_stacks, except that it uses less memory
452	* on the assumption that coroutines do not usually need	438	* on the (sometimes correct) assumption that coroutines do
453	* a lot of stackspace.	439	* not usually need a lot of stackspace.
454	*/	440	*/
455	STATIC void	441	static void
456	coro_init_stacks (pTHX)	442	coro_init_stacks (pTHX)
457	{	443	{
		444	LOCK;
		445
458	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	446	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
459	PL_curstackinfo->si_type = PERLSI_MAIN;	447	PL_curstackinfo->si_type = PERLSI_MAIN;
460	PL_curstack = PL_curstackinfo->si_stack;	448	PL_curstack = PL_curstackinfo->si_stack;
461	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	449	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
462		450
…		…
471		459
472	New(54,PL_markstack,16,I32);	460	New(54,PL_markstack,16,I32);
473	PL_markstack_ptr = PL_markstack;	461	PL_markstack_ptr = PL_markstack;
474	PL_markstack_max = PL_markstack + 16;	462	PL_markstack_max = PL_markstack + 16;
475		463
		464	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	465	SET_MARK_OFFSET;
		466	#endif
477		467
478	New(54,PL_scopestack,16,I32);	468	New(54,PL_scopestack,16,I32);
479	PL_scopestack_ix = 0;	469	PL_scopestack_ix = 0;
480	PL_scopestack_max = 16;	470	PL_scopestack_max = 16;
481		471
482	New(54,PL_savestack,96,ANY);	472	New(54,PL_savestack,96,ANY);
483	PL_savestack_ix = 0;	473	PL_savestack_ix = 0;
484	PL_savestack_max = 96;	474	PL_savestack_max = 96;
485		475
		476	#if PERL_VERSION < 9
486	New(54,PL_retstack,8,OP*);	477	New(54,PL_retstack,8,OP*);
487	PL_retstack_ix = 0;	478	PL_retstack_ix = 0;
488	PL_retstack_max = 8;	479	PL_retstack_max = 8;
		480	#endif
		481
		482	UNLOCK;
489	}	483	}
490		484
491	/*	485	/*
492	* destroy the stacks, the callchain etc...	486	* destroy the stacks, the callchain etc...
493	* still there is a memleak of 128 bytes...
494	*/	487	*/
495	STATIC void	488	static void
496	destroy_stacks(pTHX)	489	destroy_stacks(pTHX)
497	{	490	{
498	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
499	{	492	{
500	/* is this ugly, I ask? */	493	/* is this ugly, I ask? */
501	while (PL_scopestack_ix)	494	LEAVE_SCOPE (0);
502	LEAVE;
503		495
504	/* sure it is, but more important: is it correct?? :/ */	496	/* sure it is, but more important: is it correct?? :/ */
505	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
506	FREETMPS;	497	FREETMPS;
		498
		499	/POPSTACK_TO (PL_mainstack);//D//use/
507	}	500	}
508		501
509	while (PL_curstackinfo->si_next)	502	while (PL_curstackinfo->si_next)
510	PL_curstackinfo = PL_curstackinfo->si_next;	503	PL_curstackinfo = PL_curstackinfo->si_next;
511		504
512	while (PL_curstackinfo)	505	while (PL_curstackinfo)
513	{	506	{
514	PERL_SI *p = PL_curstackinfo->si_prev;	507	PERL_SI *p = PL_curstackinfo->si_prev;
515		508
516	{	509	{ /D//remove/
517	dSP;	510	dSP;
518	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	511	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
519	PUTBACK; /* possibly superfluous */	512	PUTBACK; /* possibly superfluous */
520	}	513	}
521		514
522	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
523	{	516	{
524	dounwind(-1);	517	dounwind (-1);/D//remove/
525	SvREFCNT_dec(PL_curstackinfo->si_stack);	518	SvREFCNT_dec (PL_curstackinfo->si_stack);
526	}	519	}
527		520
528	Safefree(PL_curstackinfo->si_cxstack);	521	Safefree (PL_curstackinfo->si_cxstack);
529	Safefree(PL_curstackinfo);	522	Safefree (PL_curstackinfo);
530	PL_curstackinfo = p;	523	PL_curstackinfo = p;
531	}	524	}
532		525
533	Safefree(PL_tmps_stack);	526	Safefree (PL_tmps_stack);
534	Safefree(PL_markstack);	527	Safefree (PL_markstack);
535	Safefree(PL_scopestack);	528	Safefree (PL_scopestack);
536	Safefree(PL_savestack);	529	Safefree (PL_savestack);
		530	#if PERL_VERSION < 9
537	Safefree(PL_retstack);	531	Safefree (PL_retstack);
		532	#endif
538	}	533	}
539		534
540	static void	535	static void
541	allocate_stack (Coro__State ctx, int alloc)	536	allocate_stack (Coro__State ctx, int alloc)
542	{	537	{
…		…
545	New (0, stack, 1, coro_stack);	540	New (0, stack, 1, coro_stack);
546		541
547	stack->refcnt = 1;	542	stack->refcnt = 1;
548	stack->usecnt = 1;	543	stack->usecnt = 1;
549	stack->gencnt = ctx->gencnt = 0;	544	stack->gencnt = ctx->gencnt = 0;
		545
550	if (alloc)	546	if (alloc)
551	{	547	{
552	#if HAVE_MMAP	548	#if HAVE_MMAP
553	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 */
554	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);
555	if (stack->sptr == (void *)-1)	551	if (stack->sptr != (void *)-1)
556	#endif
557	{	552	{
558	/FIXME//D//* reasonable stack size! */	553	# if STACKGUARD
		554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		555	# endif
		556	}
		557	else
		558	#endif
		559	{
559	stack->ssize = -4096 * sizeof (long);	560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
560	New (0, stack->sptr, 4096, long);	561	New (0, stack->sptr, STACKSIZE, long);
561	}	562	}
562	}	563	}
563	else	564	else
564	stack->sptr = 0;	565	stack->sptr = 0;
565		566
…		…
579	{	580	{
580	#ifdef HAVE_MMAP	581	#ifdef HAVE_MMAP
581	if (stack->ssize > 0 && stack->sptr)	582	if (stack->ssize > 0 && stack->sptr)
582	munmap (stack->sptr, stack->ssize);	583	munmap (stack->sptr, stack->ssize);
583	else	584	else
584	#else	585	#endif
585	Safefree (stack->sptr);	586	Safefree (stack->sptr);
586	#endif	587
587	Safefree (stack);	588	Safefree (stack);
588	}	589	}
589	else if (ctx->gencnt == stack->gencnt)	590	else if (ctx->gencnt == stack->gencnt)
590	--stack->usecnt;	591	--stack->usecnt;
591	}	592	}
…		…
595	setup_coro (void *arg)	596	setup_coro (void *arg)
596	{	597	{
597	/*	598	/*
598	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
599	*/	600	*/
		601	dTHX;
600	dSP;	602	dSP;
601	Coro__State ctx = (Coro__State)arg;	603	Coro__State ctx = (Coro__State)arg;
602	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
603		605
604	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
605	/PL_curcop = 0;/	607	/PL_curcop = 0;/
606	/PL_in_eval = PL_in_eval;/ /* inherit */	608	/PL_in_eval = PL_in_eval;/ /* inherit */
607	SvREFCNT_dec (GvAV (PL_defgv));	609	SvREFCNT_dec (GvAV (PL_defgv));
608	GvAV (PL_defgv) = ctx->args;	610	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
609		611
610	SPAGAIN;	612	SPAGAIN;
611		613
612	if (ctx->stack)	614	if (ctx->stack)
613	{	615	{
…		…
624	}	626	}
625	else	627	else
626	{	628	{
627	UNOP myop;	629	UNOP myop;
628		630
629	PL_op = (OP *)&myop;
630
631	Zero(&myop, 1, UNOP);	631	Zero(&myop, 1, UNOP);
632	myop.op_next = Nullop;	632	myop.op_next = Nullop;
633	myop.op_flags = OPf_WANT_VOID;	633	myop.op_flags = OPf_WANT_VOID;
		634
		635	PL_op = (OP *)&myop;
634		636
635	PUSHMARK(SP);	637	PUSHMARK(SP);
636	XPUSHs (sub_init);	638	XPUSHs (sub_init);
637	/*	639	/*
638	* the next line is slightly wrong, as PL_op->op_next	640	* the next line is slightly wrong, as PL_op->op_next
…		…
653	continue_coro (void *arg)	655	continue_coro (void *arg)
654	{	656	{
655	/*	657	/*
656	* this is a _very_ stripped down perl interpreter ;)	658	* this is a _very_ stripped down perl interpreter ;)
657	*/	659	*/
		660	dTHX;
658	Coro__State ctx = (Coro__State)arg;	661	Coro__State ctx = (Coro__State)arg;
659	JMPENV coro_start_env;
660		662
661	/* same as JMPENV_BOOTSTRAP */
662	Zero(&coro_start_env, 1, JMPENV);
663	coro_start_env.je_ret = -1;
664	coro_start_env.je_mustcatch = TRUE;
665	PL_top_env = &coro_start_env;	663	PL_top_env = &PL_start_env;
666		664
667	ctx->cursp = 0;	665	ctx->cursp = 0;
668	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
669	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
670		668
671	abort ();	669	abort ();
672	}	670	}
673		671
674	STATIC void	672	static void
675	transfer(pTHX_ struct coro prev, struct coro next, int flags)	673	transfer (pTHX_ struct coro prev, struct coro next, int flags)
676	{	674	{
677	dSTACKLEVEL;	675	dSTACKLEVEL;
678	static struct coro *xnext;
679		676
680	if (prev != next)	677	if (prev != next)
681	{	678	{
682	xnext = next;	679	/* has this coro been created yet? */
683
684	if (next->mainstack)	680	if (next->mainstack)
685	{	681	{
		682	LOCK;
686	SAVE (prev, flags);	683	SAVE (prev, flags);
687	LOAD (next);	684	LOAD (next);
		685	UNLOCK;
688		686
689	/* mark this state as in-use */	687	/* mark this state as in-use */
690	next->mainstack = 0;	688	next->mainstack = 0;
691	next->tmps_ix = -2;	689	next->tmps_ix = -2;
692		690
…		…
711	continue_coro, (void *)next,	709	continue_coro, (void *)next,
712	next->stack->sptr, labs (next->stack->ssize));	710	next->stack->sptr, labs (next->stack->ssize));
713	}	711	}
714		712
715	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		714	prev->cursp = stacklevel;
716	/* don't add any code here */	715	/* don't add any code here */
717	}	716	}
718		717	else
		718	next->cursp = stacklevel;
719	}	719	}
720	else if (next->tmps_ix == -2)	720	else if (next->tmps_ix == -2)
721	croak ("tried to transfer to running coroutine");	721	croak ("tried to transfer to running coroutine");
722	else	722	else
723	{	723	{
		724	LOCK;
724	SAVE (prev, -1); /* first get rid of the old state */	725	SAVE (prev, -1); /* first get rid of the old state */
		726	UNLOCK;
725		727
		728	/* create the coroutine for the first time */
726	if (flags & TRANSFER_SAVE_CCTXT)	729	if (flags & TRANSFER_SAVE_CCTXT)
727	{	730	{
728	if (!prev->stack)	731	if (!prev->stack)
729	allocate_stack (prev, 0);	732	allocate_stack (prev, 0);
730		733
		734	/* the new coroutine starts with start_env again */
		735	PL_top_env = &PL_start_env;
		736
731	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	737	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
732	{	738	{
733	setup_coro (next);	739	setup_coro (next);
		740	next->cursp = stacklevel;
734		741
735	prev->stack->refcnt++;	742	prev->stack->refcnt++;
736	prev->stack->usecnt++;	743	prev->stack->usecnt++;
737	next->stack = prev->stack;	744	next->stack = prev->stack;
738	next->gencnt = prev->gencnt;	745	next->gencnt = prev->gencnt;
739	}	746	}
740	else	747	else
741	{	748	{
		749	assert (!next->stack);
742	allocate_stack (next, 1);	750	allocate_stack (next, 1);
743	coro_create (&(next->stack->cctx),	751	coro_create (&(next->stack->cctx),
744	setup_coro, (void *)next,	752	setup_coro, (void *)next,
745	next->stack->sptr, labs (next->stack->ssize));	753	next->stack->sptr, labs (next->stack->ssize));
746	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		755	prev->cursp = stacklevel;
747	/* don't add any code here */	756	/* don't add any code here */
748	}	757	}
749	}	758	}
750	else	759	else
		760	{
751	setup_coro (next);	761	setup_coro (next);
		762	next->cursp = stacklevel;
		763	}
752	}	764	}
753
754	/*
755	* xnext is now either prev or next, depending on wether
756	* we switched the c stack or not. that's why I use a global
757	* variable, that should become thread-specific at one point.
758	*/
759	xnext->cursp = stacklevel;
760	}	765	}
761		766
		767	LOCK;
762	if (coro_mortal)	768	if (coro_mortal)
763	{	769	{
764	SvREFCNT_dec (coro_mortal);	770	SvREFCNT_dec (coro_mortal);
765	coro_mortal = 0;	771	coro_mortal = 0;
766	}	772	}
		773	UNLOCK;
767	}	774	}
768		775
769	#define SV_CORO(sv,func) \	776	#define SV_CORO(sv,func) \
770	do { \	777	do { \
771	if (SvROK (sv)) \	778	if (SvROK (sv)) \
772	sv = SvRV (sv); \	779	sv = SvRV (sv); \
773	\	780	\
774	if (SvTYPE(sv) == SVt_PVHV) \	781	if (SvTYPE (sv) == SVt_PVHV) \
775	{ \	782	{ \
776	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); \
777	\	784	\
778	if (!he) \	785	if (!he) \
779	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); \
780	\	787	\
781	(sv) = SvRV (HeVAL(he)); \	788	(sv) = SvRV (HeVAL(he)); \
782	} \	789	} \
783	\	790	\
784	/* must also be changed inside Coro::Cont::yield */ \	791	/* must also be changed inside Coro::Cont::yield */ \
785	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	792	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
786	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); \
787	\	794	\
788	} while(0)	795	} while(0)
789		796
790	#define SvSTATE(sv) (struct coro *)SvIV (sv)	797	#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
791		798
792	static void	799	static void
793	api_transfer(pTHX_ SV prev, SV next, int flags)	800	api_transfer(pTHX_ SV prev, SV next, int flags)
794	{	801	{
795	SV_CORO (prev, "Coro::transfer");	802	SV_CORO (prev, "Coro::transfer");
796	SV_CORO (next, "Coro::transfer");	803	SV_CORO (next, "Coro::transfer");
797		804
798	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	805	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
799	}	806	}
800		807
801	/ Coro ******************************************************************/	808	/ Coro ******************************************************************/
802		809
803	#define PRIO_MAX 3	810	#define PRIO_MAX 3
…		…
807	#define PRIO_IDLE -3	814	#define PRIO_IDLE -3
808	#define PRIO_MIN -4	815	#define PRIO_MIN -4
809		816
810	/* for Coro.pm */	817	/* for Coro.pm */
811	static GV coro_current, coro_idle;	818	static GV coro_current, coro_idle;
812	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	819	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
813	static int coro_nready;	820	static int coro_nready;
814		821
815	static void	822	static void
816	coro_enq (SV *sv)	823	coro_enq (pTHX_ SV *sv)
817	{	824	{
		825	SV **xprio;
		826	int prio;
		827
818	if (SvTYPE (sv) == SVt_PVHV)	828	if (SvTYPE (sv) != SVt_PVHV)
819	{
820	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
821	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
822
823	prio = prio > PRIO_MAX ? PRIO_MAX
824	: prio < PRIO_MIN ? PRIO_MIN
825	: prio;
826
827	av_push (coro_ready [prio - PRIO_MIN], sv);
828	coro_nready++;
829
830	return;
831	}
832
833	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++;
834	}	840	}
835		841
836	static SV *	842	static SV *
837	coro_deq (int min_prio)	843	coro_deq (pTHX_ int min_prio)
838	{	844	{
839	int prio = PRIO_MAX - PRIO_MIN;	845	int prio = PRIO_MAX - PRIO_MIN;
840		846
841	min_prio -= PRIO_MIN;	847	min_prio -= PRIO_MIN;
842	if (min_prio < 0)	848	if (min_prio < 0)
843	min_prio = 0;	849	min_prio = 0;
844		850
845	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	851	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
846	if (av_len (coro_ready[prio]) >= 0)	852	if (AvFILLp (coro_ready [prio]) >= 0)
847	{	853	{
848	coro_nready--;	854	coro_nready--;
849	return av_shift (coro_ready[prio]);	855	return av_shift (coro_ready [prio]);
850	}	856	}
851		857
852	return 0;	858	return 0;
853	}	859	}
854		860
855	static void	861	static void
856	api_ready (SV *coro)	862	api_ready (SV *coro)
857	{	863	{
		864	dTHX;
		865
858	if (SvROK (coro))	866	if (SvROK (coro))
859	coro = SvRV (coro);	867	coro = SvRV (coro);
860		868
		869	LOCK;
861	coro_enq (SvREFCNT_inc (coro));	870	coro_enq (aTHX_ SvREFCNT_inc (coro));
		871	UNLOCK;
862	}	872	}
863		873
864	static void	874	static void
865	api_schedule (void)	875	api_schedule (void)
866	{	876	{
		877	dTHX;
		878
867	SV prev, next;	879	SV prev, next;
868		880
		881	LOCK;
		882
869	prev = SvRV (GvSV (coro_current));	883	prev = SvRV (GvSV (coro_current));
870	next = coro_deq (PRIO_MIN);	884	next = coro_deq (aTHX_ PRIO_MIN);
871		885
872	if (!next)	886	if (!next)
873	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	887	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
874		888
875	/* free this only after the transfer */	889	/* free this only after the transfer */
…		…
878		892
879	SvRV (GvSV (coro_current)) = next;	893	SvRV (GvSV (coro_current)) = next;
880		894
881	SV_CORO (next, "Coro::schedule");	895	SV_CORO (next, "Coro::schedule");
882		896
		897	UNLOCK;
		898
883	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	899	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
884	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	900	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
885	}	901	}
886		902
887	static void	903	static void
888	api_cede (void)	904	api_cede (void)
889	{	905	{
		906	dTHX;
		907
		908	LOCK;
890	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	909	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		910	UNLOCK;
891		911
892	api_schedule ();	912	api_schedule ();
893	}	913	}
894		914
895	MODULE = Coro::State PACKAGE = Coro::State	915	MODULE = Coro::State PACKAGE = Coro::State
896		916
897	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
898		918
899	BOOT:	919	BOOT:
900	{ /* {} 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
901	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	926	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
902	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	927	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
903	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	928	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
904		929
905	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	930	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
906	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	931	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
907	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	932	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
908	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	933	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
909
910	if (!padlist_cache)
911	padlist_cache = newHV ();
912		934
913	main_mainstack = PL_mainstack;	935	main_mainstack = PL_mainstack;
914		936
915	coroapi.ver = CORO_API_VERSION;	937	coroapi.ver = CORO_API_VERSION;
916	coroapi.transfer = api_transfer;	938	coroapi.transfer = api_transfer;
…		…
924	Coro__State coro;	946	Coro__State coro;
925		947
926	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	948	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
927	croak ("Coro::State::_newprocess expects an arrayref");	949	croak ("Coro::State::_newprocess expects an arrayref");
928		950
929	New (0, coro, 1, struct coro);	951	Newz (0, coro, 1, struct coro);
930		952
931	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	953	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
932	coro->mainstack = 0; /* actual work is done inside transfer */	954	/coro->mainstack = 0; //actual work is done inside transfer /
933	coro->stack = 0;	955	/coro->stack = 0;/
934		956
935	RETVAL = coro;	957	RETVAL = coro;
936	OUTPUT:	958	OUTPUT:
937	RETVAL	959	RETVAL
938		960
…		…
957	if (coro->mainstack && coro->mainstack != main_mainstack)	979	if (coro->mainstack && coro->mainstack != main_mainstack)
958	{	980	{
959	struct coro temp;	981	struct coro temp;
960		982
961	PUTBACK;	983	PUTBACK;
962	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	984	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
963	LOAD(aTHX_ coro);	985	LOAD (aTHX_ coro);
964	SPAGAIN;	986	SPAGAIN;
965		987
966	destroy_stacks (aTHX);	988	destroy_stacks (aTHX);
967		989
968	LOAD((&temp)); /* this will get rid of defsv etc.. */	990	LOAD ((&temp)); /* this will get rid of defsv etc.. */
969	SPAGAIN;	991	SPAGAIN;
970		992
971	coro->mainstack = 0;	993	coro->mainstack = 0;
972	}	994	}
973		995
974	deallocate_stack (coro);	996	deallocate_stack (coro);
975		997	SvREFCNT_dec (coro->args);
976	Safefree (coro);	998	Safefree (coro);
977
978	void
979	flush()
980	CODE:
981	#ifdef MAY_FLUSH
982	flush_padlist_cache ();
983	#endif
984		999
985	void	1000	void
986	_exit(code)	1001	_exit(code)
987	int code	1002	int code
988	PROTOTYPE: $	1003	PROTOTYPE: $
989	CODE:	1004	CODE:
990	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
991	_exit (code);	1005	_exit (code);
992	#else
993	signal (SIGTERM, SIG_DFL);
994	raise (SIGTERM);
995	exit (code);
996	#endif
997		1006
998	MODULE = Coro::State PACKAGE = Coro::Cont	1007	MODULE = Coro::State PACKAGE = Coro::Cont
999
1000	# this is slightly dirty (should expose a c-level api)
1001		1008
1002	void	1009	void
1003	yield(...)	1010	yield(...)
1004	PROTOTYPE: @	1011	PROTOTYPE: @
1005	CODE:	1012	CODE:
1006	static SV *returnstk;	1013	SV *yieldstack;
1007	SV *sv;	1014	SV *sv;
1008	AV *defav = GvAV (PL_defgv);	1015	AV *defav = GvAV (PL_defgv);
1009	struct coro prev, next;	1016	struct coro prev, next;
1010		1017
1011	if (!returnstk)	1018	yieldstack = *hv_fetch (
1012	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1019	(HV *)SvRV (GvSV (coro_current)),
		1020	"yieldstack", sizeof ("yieldstack") - 1,
		1021	0
		1022	);
1013		1023
1014	/* set up @_ -- ugly */	1024	/* set up @_ -- ugly */
1015	av_clear (defav);	1025	av_clear (defav);
1016	av_fill (defav, items - 1);	1026	av_fill (defav, items - 1);
1017	while (items--)	1027	while (items--)
1018	av_store (defav, items, SvREFCNT_inc (ST(items)));	1028	av_store (defav, items, SvREFCNT_inc (ST(items)));
1019		1029
1020	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1021	sv = av_pop ((AV *)SvRV (returnstk));	1030	sv = av_pop ((AV *)SvRV (yieldstack));
1022	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)));
1023	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)));
1024	SvREFCNT_dec (sv);	1033	SvREFCNT_dec (sv);
1025		1034
1026	transfer(aTHX_ prev, next, 0);	1035	transfer (aTHX_ prev, next, 0);
1027		1036
1028	MODULE = Coro::State PACKAGE = Coro	1037	MODULE = Coro::State PACKAGE = Coro
1029
1030	# this is slightly dirty (should expose a c-level api)
1031		1038
1032	BOOT:	1039	BOOT:
1033	{	1040	{
1034	int i;	1041	int i;
1035	HV *stash = gv_stashpv ("Coro", TRUE);	1042	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1055	coroapi.ready = api_ready;	1062	coroapi.ready = api_ready;
1056	coroapi.nready = &coro_nready;	1063	coroapi.nready = &coro_nready;
1057	coroapi.current = coro_current;	1064	coroapi.current = coro_current;
1058		1065
1059	GCoroAPI = &coroapi;	1066	GCoroAPI = &coroapi;
1060	sv_setiv(sv, (IV)&coroapi);	1067	sv_setiv (sv, (IV)&coroapi);
1061	SvREADONLY_on(sv);	1068	SvREADONLY_on (sv);
1062	}	1069	}
1063	}	1070	}
		1071
		1072	#if !PERL_MICRO
1064		1073
1065	void	1074	void
1066	ready(self)	1075	ready(self)
1067	SV * self	1076	SV * self
1068	PROTOTYPE: $	1077	PROTOTYPE: $
1069	CODE:	1078	CODE:
1070	api_ready (self);	1079	api_ready (self);
		1080
		1081	#endif
1071		1082
1072	int	1083	int
1073	nready(...)	1084	nready(...)
1074	PROTOTYPE:	1085	PROTOTYPE:
1075	CODE:	1086	CODE:
…		…
1087	cede(...)	1098	cede(...)
1088	PROTOTYPE:	1099	PROTOTYPE:
1089	CODE:	1100	CODE:
1090	api_cede ();	1101	api_cede ();
1091		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 1.44 by root, Sat Mar 22 18:50:32 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 1.44 by root, Sat Mar 22 18:50:32 2003 UTC vs.
Revision 1.83 by root, Mon Nov 20 22:32:44 2006 UTC