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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.40 by root, Tue Nov 27 01:41:41 2001 UTC vs.
Revision 1.88 by root, Fri Nov 24 15:34:33 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
		60	#endif
20		61
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"
25		63
26	/* The next macro should declare a variable stacklevel that contains and approximation	64	/* The next macro should declare a variable stacklevel that contains and approximation
27	* to the current C stack pointer. Its property is that it changes with each call	65	* to the current C stack pointer. Its property is that it changes with each call
28	* and should be unique. */	66	* and should be unique. */
29	#define dSTACKLEVEL void *stacklevel = &stacklevel	67	#define dSTACKLEVEL void *stacklevel = &stacklevel
…		…
32		70
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	71	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		72
35	#include "CoroAPI.h"	73	#include "CoroAPI.h"
36		74
		75	#ifdef USE_ITHREADS
		76	static perl_mutex coro_mutex;
		77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		79	#else
		80	# define LOCK (void)0
		81	# define UNLOCK (void)0
		82	#endif
		83
37	static struct CoroAPI coroapi;	84	static struct CoroAPI coroapi;
		85	static AV main_mainstack; / used to differentiate between $main and others */
		86	static HV coro_state_stash, coro_stash;
		87	static SV coro_mortal; / will be freed after next transfer */
38		88
39	/* this is actually not only the c stack but also c registers etc... */	89	/* this is actually not only the c stack but also c registers etc... */
40	typedef struct {	90	typedef struct {
41	int refcnt; /* pointer reference counter */	91	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	92	int usecnt; /* shared by how many coroutines */
…		…
68	AV *curstack;	118	AV *curstack;
69	AV *mainstack;	119	AV *mainstack;
70	SV **stack_sp;	120	SV **stack_sp;
71	OP *op;	121	OP *op;
72	SV **curpad;	122	SV **curpad;
		123	AV *comppad;
		124	CV *compcv;
73	SV **stack_base;	125	SV **stack_base;
74	SV **stack_max;	126	SV **stack_max;
75	SV **tmps_stack;	127	SV **tmps_stack;
76	I32 tmps_floor;	128	I32 tmps_floor;
77	I32 tmps_ix;	129	I32 tmps_ix;
…		…
86	I32 savestack_ix;	138	I32 savestack_ix;
87	I32 savestack_max;	139	I32 savestack_max;
88	OP **retstack;	140	OP **retstack;
89	I32 retstack_ix;	141	I32 retstack_ix;
90	I32 retstack_max;	142	I32 retstack_max;
		143	PMOP *curpm;
91	COP *curcop;	144	COP *curcop;
92	PMOP *curpm;
93	JMPENV *top_env;	145	JMPENV *top_env;
		146
		147	/* coro process data */
		148	int prio;
94		149
95	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
96	AV *args;	151	AV *args;
		152	int refcnt;
97	};	153	};
98		154
99	typedef struct coro *Coro__State;	155	typedef struct coro *Coro__State;
100	typedef struct coro *Coro__State_or_hashref;	156	typedef struct coro *Coro__State_or_hashref;
101		157
102	static AV main_mainstack; / used to differentiate between $main and others */	158	static AV *
103	static HV *coro_state_stash;	159	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	{	160	{
113	AV *av;	161	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;	162	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		163
132	newpadlist = newAV ();	164	newpadlist = newAV ();
133	AvREAL_off (newpadlist);	165	AvREAL_off (newpadlist);
134	av_store (newpadlist, 0, (SV *) newpad_name);	166	#if PERL_VERSION < 9
		167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		168	#else
		169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		170	#endif
		171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		172	--AvFILLp (padlist);
		173
		174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
135	av_store (newpadlist, 1, (SV *) newpad);	175	av_store (newpadlist, 1, (SV *)newpad);
136		176
137	av = newAV (); /* will be @_ */	177	return newpadlist;
138	av_extend (av, 0);	178	}
139	av_store (newpad, 0, (SV *) av);
140	AvFLAGS (av) = AVf_REIFY;
141		179
142	for (ix = fpad; ix > 0; ix--)	180	static void
		181	free_padlist (pTHX_ AV *padlist)
		182	{
		183	/* may be during global destruction */
		184	if (SvREFCNT (padlist))
143	{	185	{
144	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	186	I32 i = AvFILLp (padlist);
145	if (namesv && namesv != &PL_sv_undef)	187	while (i >= 0)
146	{	188	{
147	char name = SvPVX (namesv); / XXX */	189	SV **svp = av_fetch (padlist, i--, FALSE);
148	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	190	if (svp)
149	{ /* lexical from outside? */
150	npad[ix] = SvREFCNT_inc (ppad[ix]);
151	}	191	{
152	else
153	{ /* our own lexical */
154	SV *sv;	192	SV *sv;
155	if (*name == '&')	193	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
156	sv = SvREFCNT_inc (ppad[ix]);	194	SvREFCNT_dec (sv);
157	else if (*name == '@')	195
158	sv = (SV *) newAV ();	196	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	}	197	}
167	}	198	}
168	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	199
169	{	200	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	}	201	}
		202	}
179		203
180	#if 0 /* return -ENOTUNDERSTOOD */	204	static int
181	/* Now that vars are all in place, clone nested closures. */	205	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		206	{
		207	AV *padlist;
		208	AV av = (AV )mg->mg_obj;
182		209
183	for (ix = fpad; ix > 0; ix--) {	210	/* casting is fun. */
184	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
185	if (namesv	212	free_padlist (aTHX_ padlist);
186	&& namesv != &PL_sv_undef	213
187	&& !(SvFLAGS(namesv) & SVf_FAKE)	214	SvREFCNT_dec (av);
188	&& *SvPVX(namesv) == '&'	215
189	&& CvCLONE(ppad[ix]))	216	return 0;
190	{	217	}
191	CV kid = cv_clone((CV)ppad[ix]);	218
192	SvREFCNT_dec(ppad[ix]);	219	#define PERL_MAGIC_coro PERL_MAGIC_ext
193	CvCLONE_on(kid);	220
194	SvPADMY_on(kid);	221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
195	npad[ix] = (SV*)kid;	222
196	}	223	/* the next two functions merely cache the padlists */
		224	static void
		225	get_padlist (pTHX_ CV *cv)
		226	{
		227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		228
		229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
		230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
		231	else
		232	{
		233	#if 0
		234	/* this should work - but it doesn't :( */
		235	CV *cp = Perl_cv_clone (aTHX_ cv);
		236	CvPADLIST (cv) = CvPADLIST (cp);
		237	CvPADLIST (cp) = 0;
		238	SvREFCNT_dec (cp);
		239	#else
		240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		241	#endif
		242	}
		243	}
		244
		245	static void
		246	put_padlist (pTHX_ CV *cv)
		247	{
		248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		249
		250	if (!mg)
		251	{
		252	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		253	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		254	mg->mg_virtual = &vtbl_coro;
		255	mg->mg_obj = (SV *)newAV ();
197	}	256	}
198	#endif
199		257
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));	258	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
248	}	259	}
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		260
276	#define SB do {	261	#define SB do {
277	#define SE } while (0)	262	#define SE } while (0)
278		263
279	#define LOAD(state) load_state(aTHX_ (state));	264	#define LOAD(state) load_state(aTHX_ (state));
280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	265	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281		266
282	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	267	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
283		268
284	static void	269	static void
285	load_state(pTHX_ Coro__State c)	270	load_state(pTHX_ Coro__State c)
286	{	271	{
287	PL_dowarn = c->dowarn;	272	PL_dowarn = c->dowarn;
…		…
291	PL_curstack = c->curstack;	276	PL_curstack = c->curstack;
292	PL_mainstack = c->mainstack;	277	PL_mainstack = c->mainstack;
293	PL_stack_sp = c->stack_sp;	278	PL_stack_sp = c->stack_sp;
294	PL_op = c->op;	279	PL_op = c->op;
295	PL_curpad = c->curpad;	280	PL_curpad = c->curpad;
		281	PL_comppad = c->comppad;
		282	PL_compcv = c->compcv;
296	PL_stack_base = c->stack_base;	283	PL_stack_base = c->stack_base;
297	PL_stack_max = c->stack_max;	284	PL_stack_max = c->stack_max;
298	PL_tmps_stack = c->tmps_stack;	285	PL_tmps_stack = c->tmps_stack;
299	PL_tmps_floor = c->tmps_floor;	286	PL_tmps_floor = c->tmps_floor;
300	PL_tmps_ix = c->tmps_ix;	287	PL_tmps_ix = c->tmps_ix;
…		…
306	PL_scopestack_ix = c->scopestack_ix;	293	PL_scopestack_ix = c->scopestack_ix;
307	PL_scopestack_max = c->scopestack_max;	294	PL_scopestack_max = c->scopestack_max;
308	PL_savestack = c->savestack;	295	PL_savestack = c->savestack;
309	PL_savestack_ix = c->savestack_ix;	296	PL_savestack_ix = c->savestack_ix;
310	PL_savestack_max = c->savestack_max;	297	PL_savestack_max = c->savestack_max;
		298	#if PERL_VERSION < 9
311	PL_retstack = c->retstack;	299	PL_retstack = c->retstack;
312	PL_retstack_ix = c->retstack_ix;	300	PL_retstack_ix = c->retstack_ix;
313	PL_retstack_max = c->retstack_max;	301	PL_retstack_max = c->retstack_max;
		302	#endif
		303	PL_curpm = c->curpm;
314	PL_curcop = c->curcop;	304	PL_curcop = c->curcop;
315	PL_top_env = c->top_env;	305	PL_top_env = c->top_env;
316		306
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
327	{	317	{
328	AV padlist = (AV )POPs;	318	AV padlist = (AV )POPs;
329		319
330	if (padlist)	320	if (padlist)
331	{	321	{
332	put_padlist (cv); /* mark this padlist as available */	322	put_padlist (aTHX_ cv); /* mark this padlist as available */
333	CvPADLIST(cv) = padlist;	323	CvPADLIST(cv) = padlist;
334	#ifdef USE_THREADS
335	/CvOWNER(cv) = (struct perl_thread )POPs;*/
336	#endif
337	}	324	}
338		325
339	++CvDEPTH(cv);	326	++CvDEPTH(cv);
340	}	327	}
341		328
…		…
368	if (CxTYPE(cx) == CXt_SUB)	355	if (CxTYPE(cx) == CXt_SUB)
369	{	356	{
370	CV *cv = cx->blk_sub.cv;	357	CV *cv = cx->blk_sub.cv;
371	if (CvDEPTH(cv))	358	if (CvDEPTH(cv))
372	{	359	{
373	#ifdef USE_THREADS
374	/XPUSHs ((SV )CvOWNER(cv));*/
375	/CvOWNER(cv) = 0;/
376	/error must unlock this cv etc.. etc.../
377	#endif
378	EXTEND (SP, CvDEPTH(cv)*2);	360	EXTEND (SP, CvDEPTH(cv)*2);
379		361
380	while (--CvDEPTH(cv))	362	while (--CvDEPTH(cv))
381	{	363	{
382	/* this tells the restore code to increment CvDEPTH */	364	/* this tells the restore code to increment CvDEPTH */
…		…
385	}	367	}
386		368
387	PUSHs ((SV *)CvPADLIST(cv));	369	PUSHs ((SV *)CvPADLIST(cv));
388	PUSHs ((SV *)cv);	370	PUSHs ((SV *)cv);
389		371
390	get_padlist (cv); /* this is a monster */	372	get_padlist (aTHX_ cv);
391	}	373	}
392	}	374	}
		375	#ifdef CXt_FORMAT
393	else if (CxTYPE(cx) == CXt_FORMAT)	376	else if (CxTYPE(cx) == CXt_FORMAT)
394	{	377	{
395	/* I never used formats, so how should I know how these are implemented? */	378	/* I never used formats, so how should I know how these are implemented? */
396	/* my bold guess is as a simple, plain sub... */	379	/* my bold guess is as a simple, plain sub... */
397	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	380	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
398	}	381	}
		382	#endif
399	}	383	}
400		384
401	if (top_si->si_type == PERLSI_MAIN)	385	if (top_si->si_type == PERLSI_MAIN)
402	break;	386	break;
403		387
…		…
420	c->curstack = PL_curstack;	404	c->curstack = PL_curstack;
421	c->mainstack = PL_mainstack;	405	c->mainstack = PL_mainstack;
422	c->stack_sp = PL_stack_sp;	406	c->stack_sp = PL_stack_sp;
423	c->op = PL_op;	407	c->op = PL_op;
424	c->curpad = PL_curpad;	408	c->curpad = PL_curpad;
		409	c->comppad = PL_comppad;
		410	c->compcv = PL_compcv;
425	c->stack_base = PL_stack_base;	411	c->stack_base = PL_stack_base;
426	c->stack_max = PL_stack_max;	412	c->stack_max = PL_stack_max;
427	c->tmps_stack = PL_tmps_stack;	413	c->tmps_stack = PL_tmps_stack;
428	c->tmps_floor = PL_tmps_floor;	414	c->tmps_floor = PL_tmps_floor;
429	c->tmps_ix = PL_tmps_ix;	415	c->tmps_ix = PL_tmps_ix;
…		…
435	c->scopestack_ix = PL_scopestack_ix;	421	c->scopestack_ix = PL_scopestack_ix;
436	c->scopestack_max = PL_scopestack_max;	422	c->scopestack_max = PL_scopestack_max;
437	c->savestack = PL_savestack;	423	c->savestack = PL_savestack;
438	c->savestack_ix = PL_savestack_ix;	424	c->savestack_ix = PL_savestack_ix;
439	c->savestack_max = PL_savestack_max;	425	c->savestack_max = PL_savestack_max;
		426	#if PERL_VERSION < 9
440	c->retstack = PL_retstack;	427	c->retstack = PL_retstack;
441	c->retstack_ix = PL_retstack_ix;	428	c->retstack_ix = PL_retstack_ix;
442	c->retstack_max = PL_retstack_max;	429	c->retstack_max = PL_retstack_max;
		430	#endif
		431	c->curpm = PL_curpm;
443	c->curcop = PL_curcop;	432	c->curcop = PL_curcop;
444	c->top_env = PL_top_env;	433	c->top_env = PL_top_env;
445	}	434	}
446		435
447	/*	436	/*
448	* allocate various perl stacks. This is an exact copy	437	* allocate various perl stacks. This is an exact copy
449	* of perl.c:init_stacks, except that it uses less memory	438	* of perl.c:init_stacks, except that it uses less memory
450	* on the assumption that coroutines do not usually need	439	* on the (sometimes correct) assumption that coroutines do
451	* a lot of stackspace.	440	* not usually need a lot of stackspace.
452	*/	441	*/
453	STATIC void	442	static void
454	coro_init_stacks (pTHX)	443	coro_init_stacks (pTHX)
455	{	444	{
		445	LOCK;
		446
456	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
457	PL_curstackinfo->si_type = PERLSI_MAIN;	448	PL_curstackinfo->si_type = PERLSI_MAIN;
458	PL_curstack = PL_curstackinfo->si_stack;	449	PL_curstack = PL_curstackinfo->si_stack;
459	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460		451
…		…
469		460
470	New(54,PL_markstack,16,I32);	461	New(54,PL_markstack,16,I32);
471	PL_markstack_ptr = PL_markstack;	462	PL_markstack_ptr = PL_markstack;
472	PL_markstack_max = PL_markstack + 16;	463	PL_markstack_max = PL_markstack + 16;
473		464
		465	#ifdef SET_MARK_OFFSET
474	SET_MARK_OFFSET;	466	SET_MARK_OFFSET;
		467	#endif
475		468
476	New(54,PL_scopestack,16,I32);	469	New(54,PL_scopestack,16,I32);
477	PL_scopestack_ix = 0;	470	PL_scopestack_ix = 0;
478	PL_scopestack_max = 16;	471	PL_scopestack_max = 16;
479		472
480	New(54,PL_savestack,96,ANY);	473	New(54,PL_savestack,96,ANY);
481	PL_savestack_ix = 0;	474	PL_savestack_ix = 0;
482	PL_savestack_max = 96;	475	PL_savestack_max = 96;
483		476
		477	#if PERL_VERSION < 9
484	New(54,PL_retstack,8,OP*);	478	New(54,PL_retstack,8,OP*);
485	PL_retstack_ix = 0;	479	PL_retstack_ix = 0;
486	PL_retstack_max = 8;	480	PL_retstack_max = 8;
		481	#endif
		482
		483	UNLOCK;
487	}	484	}
488		485
489	/*	486	/*
490	* destroy the stacks, the callchain etc...	487	* destroy the stacks, the callchain etc...
491	* still there is a memleak of 128 bytes...
492	*/	488	*/
493	STATIC void	489	static void
494	destroy_stacks(pTHX)	490	destroy_stacks(pTHX)
495	{	491	{
496	if (!IN_DESTRUCT)	492	if (!IN_DESTRUCT)
497	{	493	{
498	/* is this ugly, I ask? */	494	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	495	LEAVE_SCOPE (0);
500	LEAVE;
501		496
502	/* sure it is, but more important: is it correct?? :/ */	497	/* sure it is, but more important: is it correct?? :/ */
503	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
504	FREETMPS;	498	FREETMPS;
		499
		500	/POPSTACK_TO (PL_mainstack);//D//use/
505	}	501	}
506		502
507	while (PL_curstackinfo->si_next)	503	while (PL_curstackinfo->si_next)
508	PL_curstackinfo = PL_curstackinfo->si_next;	504	PL_curstackinfo = PL_curstackinfo->si_next;
509		505
510	while (PL_curstackinfo)	506	while (PL_curstackinfo)
511	{	507	{
512	PERL_SI *p = PL_curstackinfo->si_prev;	508	PERL_SI *p = PL_curstackinfo->si_prev;
513		509
514	{	510	{ /D//remove/
515	dSP;	511	dSP;
516	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	512	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
517	PUTBACK; /* possibly superfluous */	513	PUTBACK; /* possibly superfluous */
518	}	514	}
519		515
520	if (!IN_DESTRUCT)	516	if (!IN_DESTRUCT)
521	{	517	{
522	dounwind(-1);	518	dounwind (-1);/D//remove/
523	SvREFCNT_dec(PL_curstackinfo->si_stack);	519	SvREFCNT_dec (PL_curstackinfo->si_stack);
524	}	520	}
525		521
526	Safefree(PL_curstackinfo->si_cxstack);	522	Safefree (PL_curstackinfo->si_cxstack);
527	Safefree(PL_curstackinfo);	523	Safefree (PL_curstackinfo);
528	PL_curstackinfo = p;	524	PL_curstackinfo = p;
529	}	525	}
530		526
531	Safefree(PL_tmps_stack);	527	Safefree (PL_tmps_stack);
532	Safefree(PL_markstack);	528	Safefree (PL_markstack);
533	Safefree(PL_scopestack);	529	Safefree (PL_scopestack);
534	Safefree(PL_savestack);	530	Safefree (PL_savestack);
		531	#if PERL_VERSION < 9
535	Safefree(PL_retstack);	532	Safefree (PL_retstack);
		533	#endif
536	}	534	}
537		535
538	static void	536	static void
539	allocate_stack (Coro__State ctx, int alloc)	537	allocate_stack (Coro__State ctx, int alloc)
540	{	538	{
…		…
543	New (0, stack, 1, coro_stack);	541	New (0, stack, 1, coro_stack);
544		542
545	stack->refcnt = 1;	543	stack->refcnt = 1;
546	stack->usecnt = 1;	544	stack->usecnt = 1;
547	stack->gencnt = ctx->gencnt = 0;	545	stack->gencnt = ctx->gencnt = 0;
		546
548	if (alloc)	547	if (alloc)
549	{	548	{
550	#if HAVE_MMAP	549	#if HAVE_MMAP
551	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	550	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
552	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	551	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
553	if (stack->sptr == (void *)-1)	552	if (stack->sptr != (void *)-1)
554	#endif
555	{	553	{
556	/FIXME//D//* reasonable stack size! */	554	# if STACKGUARD
		555	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		556	# endif
		557	}
		558	else
		559	#endif
		560	{
557	stack->ssize = -4096 * sizeof (long);	561	stack->ssize = - (STACKSIZE * (long)sizeof (long));
558	New (0, stack->sptr, 4096, long);	562	New (0, stack->sptr, STACKSIZE, long);
559	}	563	}
560	}	564	}
561	else	565	else
562	stack->sptr = 0;	566	stack->sptr = 0;
563		567
…		…
577	{	581	{
578	#ifdef HAVE_MMAP	582	#ifdef HAVE_MMAP
579	if (stack->ssize > 0 && stack->sptr)	583	if (stack->ssize > 0 && stack->sptr)
580	munmap (stack->sptr, stack->ssize);	584	munmap (stack->sptr, stack->ssize);
581	else	585	else
582	#else	586	#endif
583	Safefree (stack->sptr);	587	Safefree (stack->sptr);
584	#endif	588
585	Safefree (stack);	589	Safefree (stack);
586	}	590	}
587	else if (ctx->gencnt == stack->gencnt)	591	else if (ctx->gencnt == stack->gencnt)
588	--stack->usecnt;	592	--stack->usecnt;
589	}	593	}
…		…
593	setup_coro (void *arg)	597	setup_coro (void *arg)
594	{	598	{
595	/*	599	/*
596	* emulate part of the perl startup here.	600	* emulate part of the perl startup here.
597	*/	601	*/
		602	dTHX;
598	dSP;	603	dSP;
599	Coro__State ctx = (Coro__State)arg;	604	Coro__State ctx = (Coro__State)arg;
600	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	605	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
601		606
602	coro_init_stacks (aTHX);	607	coro_init_stacks (aTHX);
603	PL_curpm = 0; /* segfault on first access */
604	/PL_curcop = 0;/	608	/PL_curcop = 0;/
605	/PL_in_eval = PL_in_eval;/ /* inherit */	609	/PL_in_eval = PL_in_eval;/ /* inherit */
606	SvREFCNT_dec (GvAV (PL_defgv));	610	SvREFCNT_dec (GvAV (PL_defgv));
607	GvAV (PL_defgv) = ctx->args;	611	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
608		612
609	SPAGAIN;	613	SPAGAIN;
610		614
611	if (ctx->stack)	615	if (ctx->stack)
612	{	616	{
…		…
623	}	627	}
624	else	628	else
625	{	629	{
626	UNOP myop;	630	UNOP myop;
627		631
628	PL_op = (OP *)&myop;
629
630	Zero(&myop, 1, UNOP);	632	Zero(&myop, 1, UNOP);
631	myop.op_next = Nullop;	633	myop.op_next = Nullop;
632	myop.op_flags = OPf_WANT_VOID;	634	myop.op_flags = OPf_WANT_VOID;
		635
		636	PL_op = (OP *)&myop;
633		637
634	PUSHMARK(SP);	638	PUSHMARK(SP);
635	XPUSHs (sub_init);	639	XPUSHs (sub_init);
636	/*	640	/*
637	* the next line is slightly wrong, as PL_op->op_next	641	* the next line is slightly wrong, as PL_op->op_next
…		…
639	* that doesn't matter, though, since it is only	643	* that doesn't matter, though, since it is only
640	* pp_nextstate and we never return...	644	* pp_nextstate and we never return...
641	* ah yes, and I don't care anyways ;)	645	* ah yes, and I don't care anyways ;)
642	*/	646	*/
643	PUTBACK;	647	PUTBACK;
644	PL_op = pp_entersub();	648	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
645	SPAGAIN;	649	SPAGAIN;
646		650
647	ENTER; /* necessary e.g. for dounwind */	651	ENTER; /* necessary e.g. for dounwind */
648	}	652	}
649	}	653	}
…		…
652	continue_coro (void *arg)	656	continue_coro (void *arg)
653	{	657	{
654	/*	658	/*
655	* this is a _very_ stripped down perl interpreter ;)	659	* this is a _very_ stripped down perl interpreter ;)
656	*/	660	*/
		661	dTHX;
657	Coro__State ctx = (Coro__State)arg;	662	Coro__State ctx = (Coro__State)arg;
658	JMPENV coro_start_env;
659		663
660	/* same as JMPENV_BOOTSTRAP */
661	Zero(&coro_start_env, 1, JMPENV);
662	coro_start_env.je_ret = -1;
663	coro_start_env.je_mustcatch = TRUE;
664	PL_top_env = &coro_start_env;	664	PL_top_env = &PL_start_env;
665		665
666	ctx->cursp = 0;	666	ctx->cursp = 0;
667	PL_op = PL_op->op_next;	667	PL_op = PL_op->op_next;
668	CALLRUNOPS(aTHX);	668	CALLRUNOPS(aTHX);
669		669
670	abort ();	670	abort ();
671	}	671	}
672		672
673	STATIC void	673	/* never call directly, always through the coro_state_transfer global variable */
		674	static void
674	transfer(pTHX_ struct coro prev, struct coro next, int flags)	675	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
675	{	676	{
676	dSTACKLEVEL;	677	dSTACKLEVEL;
677	static struct coro *xnext;
678		678
679	if (prev != next)	679	if (prev != next)
680	{	680	{
681	xnext = next;	681	/* has this coro been created yet? */
682
683	if (next->mainstack)	682	if (next->mainstack)
684	{	683	{
		684	LOCK;
685	SAVE (prev, flags);	685	SAVE (prev, flags);
686	LOAD (next);	686	LOAD (next);
		687	UNLOCK;
687		688
688	/* mark this state as in-use */	689	/* mark this state as in-use */
689	next->mainstack = 0;	690	next->mainstack = 0;
690	next->tmps_ix = -2;	691	next->tmps_ix = -2;
691		692
…		…
710	continue_coro, (void *)next,	711	continue_coro, (void *)next,
711	next->stack->sptr, labs (next->stack->ssize));	712	next->stack->sptr, labs (next->stack->ssize));
712	}	713	}
713		714
714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	715	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		716	prev->cursp = stacklevel;
715	/* don't add any code here */	717	/* don't add any code here */
716	}	718	}
717		719	else
		720	next->cursp = stacklevel;
718	}	721	}
719	else if (next->tmps_ix == -2)	722	else if (next->tmps_ix == -2)
720	croak ("tried to transfer to running coroutine");	723	croak ("tried to transfer to running coroutine");
721	else	724	else
722	{	725	{
		726	LOCK;
723	SAVE (prev, -1); /* first get rid of the old state */	727	SAVE (prev, -1); /* first get rid of the old state */
		728	UNLOCK;
724		729
		730	/* create the coroutine for the first time */
725	if (flags & TRANSFER_SAVE_CCTXT)	731	if (flags & TRANSFER_SAVE_CCTXT)
726	{	732	{
727	if (!prev->stack)	733	if (!prev->stack)
728	allocate_stack (prev, 0);	734	allocate_stack (prev, 0);
729		735
		736	/* the new coroutine starts with start_env again */
		737	PL_top_env = &PL_start_env;
		738
730	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	739	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
731	{	740	{
732	setup_coro (next);	741	setup_coro (next);
		742	next->cursp = stacklevel;
733		743
734	prev->stack->refcnt++;	744	prev->stack->refcnt++;
735	prev->stack->usecnt++;	745	prev->stack->usecnt++;
736	next->stack = prev->stack;	746	next->stack = prev->stack;
737	next->gencnt = prev->gencnt;	747	next->gencnt = prev->gencnt;
738	}	748	}
739	else	749	else
740	{	750	{
		751	assert (!next->stack);
741	allocate_stack (next, 1);	752	allocate_stack (next, 1);
742	coro_create (&(next->stack->cctx),	753	coro_create (&(next->stack->cctx),
743	setup_coro, (void *)next,	754	setup_coro, (void *)next,
744	next->stack->sptr, labs (next->stack->ssize));	755	next->stack->sptr, labs (next->stack->ssize));
745	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	756	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		757	prev->cursp = stacklevel;
746	/* don't add any code here */	758	/* don't add any code here */
747	}	759	}
748	}	760	}
749	else	761	else
		762	{
750	setup_coro (next);	763	setup_coro (next);
		764	next->cursp = stacklevel;
		765	}
751	}	766	}
752
753	/*
754	* xnext is now either prev or next, depending on wether
755	* we switched the c stack or not. that's why i use a global
756	* variable, that should become thread-specific at one point.
757	*/
758	xnext->cursp = stacklevel;
759	}	767	}
760		768
		769	LOCK;
761	if (coro_mortal)	770	if (coro_mortal)
762	{	771	{
763	SvREFCNT_dec (coro_mortal);	772	SvREFCNT_dec (coro_mortal);
764	coro_mortal = 0;	773	coro_mortal = 0;
765	}	774	}
		775	UNLOCK;
766	}	776	}
767		777
768	#define SV_CORO(sv,func) \	778	/* use this function pointer to call the above function */
769	do { \	779	/* this is done to increase chances of the compiler not inlining the call */
770	if (SvROK (sv)) \	780	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
771	sv = SvRV (sv); \
772	\
773	if (SvTYPE(sv) == SVt_PVHV) \
774	{ \
775	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
776	\
777	if (!he) \
778	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
779	\
780	(sv) = SvRV (HeVAL(he)); \
781	} \
782	\
783	/* must also be changed inside Coro::Cont::yield */ \
784	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \
785	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
786	\
787	} while(0)
788		781
789	#define SvSTATE(sv) (struct coro *)SvIV (sv)	782	static void
		783	coro_state_destroy (struct coro *coro)
		784	{
		785	if (coro->refcnt--)
		786	return;
790		787
		788	if (coro->mainstack && coro->mainstack != main_mainstack)
		789	{
		790	struct coro temp;
		791
		792	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
		793	LOAD (aTHX_ coro);
		794
		795	destroy_stacks (aTHX);
		796
		797	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		798
		799	coro->mainstack = 0;
		800	}
		801
		802	deallocate_stack (coro);
		803	SvREFCNT_dec (coro->args);
		804	Safefree (coro);
		805	}
		806
791	static void	807	static int
		808	coro_state_clear (SV sv, MAGIC mg)
		809	{
		810	struct coro coro = (struct coro )mg->mg_ptr;
		811	mg->mg_ptr = 0;
		812
		813	coro_state_destroy (coro);
		814
		815	return 0;
		816	}
		817
		818	static int
		819	coro_state_dup (MAGIC mg, CLONE_PARAMS params)
		820	{
		821	struct coro coro = (struct coro )mg->mg_ptr;
		822
		823	++coro->refcnt;
		824
		825	return 0;
		826	}
		827
		828	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
		829
		830	static struct coro *
		831	SvSTATE (SV *coro)
		832	{
		833	HV *stash;
		834	MAGIC *mg;
		835
		836	if (SvROK (coro))
		837	coro = SvRV (coro);
		838
		839	stash = SvSTASH (coro);
		840	if (stash != coro_stash && stash != coro_state_stash)
		841	{
		842	/* very slow, but rare, check */
		843	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		844	croak ("Coro::State object required");
		845	}
		846
		847	mg = SvMAGIC (coro);
		848	assert (mg->mg_type == PERL_MAGIC_ext);
		849	return (struct coro *)mg->mg_ptr;
		850	}
		851
		852	static void
792	api_transfer(pTHX_ SV prev, SV next, int flags)	853	api_transfer (pTHX_ SV prev, SV next, int flags)
793	{	854	{
794	SV_CORO (prev, "Coro::transfer");
795	SV_CORO (next, "Coro::transfer");
796
797	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	855	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
798	}	856	}
799		857
800	/ Coro ******************************************************************/	858	/ Coro ******************************************************************/
801		859
802	#define PRIO_MAX 3	860	#define PRIO_MAX 3
…		…
806	#define PRIO_IDLE -3	864	#define PRIO_IDLE -3
807	#define PRIO_MIN -4	865	#define PRIO_MIN -4
808		866
809	/* for Coro.pm */	867	/* for Coro.pm */
810	static GV coro_current, coro_idle;	868	static GV coro_current, coro_idle;
811	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	869	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
812	static int coro_nready;	870	static int coro_nready;
813		871
814	static void	872	static void
815	coro_enq (SV *sv)	873	coro_enq (pTHX_ SV *sv)
816	{	874	{
		875	int prio;
		876
817	if (SvTYPE (sv) == SVt_PVHV)	877	if (SvTYPE (sv) != SVt_PVHV)
818	{
819	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
820	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
821
822	prio = prio > PRIO_MAX ? PRIO_MAX
823	: prio < PRIO_MIN ? PRIO_MIN
824	: prio;
825
826	av_push (coro_ready [prio - PRIO_MIN], sv);
827	coro_nready++;
828
829	return;
830	}
831
832	croak ("Coro::ready tried to enqueue something that is not a coroutine");	878	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		879
		880	prio = SvSTATE (sv)->prio;
		881
		882	av_push (coro_ready [prio - PRIO_MIN], sv);
		883	coro_nready++;
833	}	884	}
834		885
835	static SV *	886	static SV *
836	coro_deq (int min_prio)	887	coro_deq (pTHX_ int min_prio)
837	{	888	{
838	int prio = PRIO_MAX - PRIO_MIN;	889	int prio = PRIO_MAX - PRIO_MIN;
839		890
840	min_prio -= PRIO_MIN;	891	min_prio -= PRIO_MIN;
841	if (min_prio < 0)	892	if (min_prio < 0)
842	min_prio = 0;	893	min_prio = 0;
843		894
844	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	895	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
845	if (av_len (coro_ready[prio]) >= 0)	896	if (AvFILLp (coro_ready [prio]) >= 0)
846	{	897	{
847	coro_nready--;	898	coro_nready--;
848	return av_shift (coro_ready[prio]);	899	return av_shift (coro_ready [prio]);
849	}	900	}
850		901
851	return 0;	902	return 0;
852	}	903	}
853		904
854	static void	905	static void
855	api_ready (SV *coro)	906	api_ready (SV *coro)
856	{	907	{
		908	dTHX;
		909
857	if (SvROK (coro))	910	if (SvROK (coro))
858	coro = SvRV (coro);	911	coro = SvRV (coro);
859		912
		913	LOCK;
860	coro_enq (SvREFCNT_inc (coro));	914	coro_enq (aTHX_ SvREFCNT_inc (coro));
		915	UNLOCK;
861	}	916	}
862		917
863	static void	918	static void
864	api_schedule (void)	919	api_schedule (void)
865	{	920	{
		921	dTHX;
		922
866	SV prev, next;	923	SV prev, next;
867
868	prev = SvRV (GvSV (coro_current));	924	SV *current = GvSV (coro_current);
		925
		926	for (;;)
		927	{
		928	LOCK;
		929
869	next = coro_deq (PRIO_MIN);	930	next = coro_deq (aTHX_ PRIO_MIN);
870		931
871	if (!next)	932	if (next)
872	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	933	break;
		934
		935	UNLOCK;
		936
		937	{
		938	dSP;
		939
		940	ENTER;
		941	SAVETMPS;
		942
		943	PUSHMARK (SP);
		944	PUTBACK;
		945	call_sv (GvSV (coro_idle), G_DISCARD);
		946
		947	FREETMPS;
		948	LEAVE;
		949	}
		950	}
		951
		952	prev = SvRV (current);
		953	SvRV (current) = next;
873		954
874	/* free this only after the transfer */	955	/* free this only after the transfer */
875	coro_mortal = prev;	956	coro_mortal = prev;
876	SV_CORO (prev, "Coro::schedule");
877		957
878	SvRV (GvSV (coro_current)) = next;	958	UNLOCK;
879		959
880	SV_CORO (next, "Coro::schedule");
881
882	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
883	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
884	}	962	}
885		963
886	static void	964	static void
887	api_cede (void)	965	api_cede (void)
888	{	966	{
		967	dTHX;
		968
		969	LOCK;
889	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		971	UNLOCK;
890		972
891	api_schedule ();	973	api_schedule ();
892	}	974	}
893		975
894	MODULE = Coro::State PACKAGE = Coro::State	976	MODULE = Coro::State PACKAGE = Coro::State
895		977
896	PROTOTYPES: ENABLE	978	PROTOTYPES: DISABLE
897		979
898	BOOT:	980	BOOT:
899	{ /* {} necessary for stoopid perl-5.6.x */	981	{
900	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	982	#ifdef USE_ITHREADS
901	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	983	MUTEX_INIT (&coro_mutex);
		984	#endif
		985	BOOT_PAGESIZE;
		986
902	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	987	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
903		988
904	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	989	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
905	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	990	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
906	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	991	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
907	newCONSTSUB (coro_state_stash, "SAVE_CURPM", newSViv (TRANSFER_SAVE_CURPM));
908	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	992	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
909
910	if (!padlist_cache)
911	padlist_cache = newHV ();
912		993
913	main_mainstack = PL_mainstack;	994	main_mainstack = PL_mainstack;
914		995
915	coroapi.ver = CORO_API_VERSION;	996	coroapi.ver = CORO_API_VERSION;
916	coroapi.transfer = api_transfer;	997	coroapi.transfer = api_transfer;
917	}
918		998
919	Coro::State	999	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
920	_newprocess(args)	1000	}
921	SV * args	1001
922	PROTOTYPE: $	1002	SV *
		1003	new (char *klass, ...)
923	CODE:	1004	CODE:
924	Coro__State coro;	1005	{
		1006	struct coro *coro;
		1007	HV *hv;
		1008	int i;
925		1009
926	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
927	croak ("Coro::State::_newprocess expects an arrayref");
928
929	New (0, coro, 1, struct coro);	1010	Newz (0, coro, 1, struct coro);
		1011	coro->args = newAV ();
930		1012
931	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1013	for (i = 1; i < items; i++)
		1014	av_push (coro->args, newSVsv (ST (i)));
		1015
932	coro->mainstack = 0; /* actual work is done inside transfer */	1016	/coro->mainstack = 0; //actual work is done inside transfer /
933	coro->stack = 0;	1017	/coro->stack = 0;/
934		1018
935	RETVAL = coro;	1019	hv = newHV ();
		1020	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
		1021	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		1022	}
936	OUTPUT:	1023	OUTPUT:
937	RETVAL	1024	RETVAL
938		1025
939	void	1026	void
940	transfer(prev, next, flags)	1027	transfer(prev, next, flags)
941	SV *prev	1028	SV *prev
942	SV *next	1029	SV *next
943	int flags	1030	int flags
944	PROTOTYPE: @
945	CODE:	1031	CODE:
946	PUTBACK;	1032	PUTBACK;
947	SV_CORO (next, "Coro::transfer");
948	SV_CORO (prev, "Coro::transfer");
949	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1033	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
950	SPAGAIN;	1034	SPAGAIN;
951		1035
		1036	int
		1037	prio (Coro::State coro, int newprio = 0)
		1038	ALIAS:
		1039	nice = 1
		1040	CODE:
		1041	{
		1042	RETVAL = coro->prio;
		1043
		1044	if (items > 1)
		1045	{
		1046	if (ix)
		1047	newprio += coro->prio;
		1048
		1049	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1050	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1051
		1052	coro->prio = newprio;
		1053	}
		1054	}
		1055
952	void	1056	void
953	DESTROY(coro)	1057	_clone_state_from (SV dst, SV src)
954	Coro::State coro	1058	CODE:
955	CODE:	1059	{
		1060	struct coro *coro_src = SvSTATE (src);
956		1061
957	if (coro->mainstack && coro->mainstack != main_mainstack)	1062	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
958	{
959	struct coro temp;
960		1063
961	PUTBACK;	1064	++coro_src->refcnt;
962	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1065	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
963	LOAD(aTHX_ coro);	1066	}
964	SPAGAIN;
965
966	destroy_stacks (aTHX);
967
968	LOAD((&temp)); /* this will get rid of defsv etc.. */
969	SPAGAIN;
970
971	coro->mainstack = 0;
972	}
973
974	deallocate_stack (coro);
975
976	Safefree (coro);
977		1067
978	void	1068	void
979	flush()
980	CODE:
981	#ifdef MAY_FLUSH
982	flush_padlist_cache ();
983	#endif
984
985	void
986	_exit(code)	1069	_exit (code)
987	int code	1070	int code
988	PROTOTYPE: $	1071	PROTOTYPE: $
989	CODE:	1072	CODE:
990	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
991	_exit (code);	1073	_exit (code);
992	#else
993	signal (SIGTERM, SIG_DFL);
994	raise (SIGTERM);
995	exit (code);
996	#endif
997		1074
998	MODULE = Coro::State PACKAGE = Coro::Cont	1075	MODULE = Coro::State PACKAGE = Coro::Cont
999		1076
1000	# this is slightly dirty (should expose a c-level api)
1001
1002	void	1077	void
1003	yield(...)	1078	yield (...)
1004	PROTOTYPE: @	1079	PROTOTYPE: @
1005	CODE:	1080	CODE:
1006	static SV *returnstk;	1081	{
		1082	SV *yieldstack;
1007	SV *sv;	1083	SV *sv;
1008	AV *defav = GvAV (PL_defgv);	1084	AV *defav = GvAV (PL_defgv);
1009	struct coro prev, next;	1085	struct coro prev, next;
1010		1086
1011	if (!returnstk)	1087	yieldstack = *hv_fetch (
1012	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1088	(HV *)SvRV (GvSV (coro_current)),
		1089	"yieldstack", sizeof ("yieldstack") - 1,
		1090	0
		1091	);
1013		1092
1014	/* set up @_ -- ugly */	1093	/* set up @_ -- ugly */
1015	av_clear (defav);	1094	av_clear (defav);
1016	av_fill (defav, items - 1);	1095	av_fill (defav, items - 1);
1017	while (items--)	1096	while (items--)
1018	av_store (defav, items, SvREFCNT_inc (ST(items)));	1097	av_store (defav, items, SvREFCNT_inc (ST(items)));
1019		1098
1020	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1021	sv = av_pop ((AV *)SvRV (returnstk));	1099	sv = av_pop ((AV *)SvRV (yieldstack));
1022	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1100	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1023	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1101	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1024	SvREFCNT_dec (sv);	1102	SvREFCNT_dec (sv);
1025		1103
1026	transfer(aTHX_ prev, next, 0);	1104	coro_state_transfer (aTHX_ prev, next, 0);
		1105	}
1027		1106
1028	MODULE = Coro::State PACKAGE = Coro	1107	MODULE = Coro::State PACKAGE = Coro
1029		1108
1030	# this is slightly dirty (should expose a c-level api)
1031
1032	BOOT:	1109	BOOT:
1033	{	1110	{
1034	int i;	1111	int i;
		1112
1035	HV *stash = gv_stashpv ("Coro", TRUE);	1113	coro_stash = gv_stashpv ("Coro", TRUE);
1036		1114
1037	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));	1115	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1038	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1116	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1039	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1117	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1040	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));	1118	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1041	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1119	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1042	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));	1120	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1043		1121
1044	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1122	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1045	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1123	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1046		1124
1047	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1125	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
…		…
1055	coroapi.ready = api_ready;	1133	coroapi.ready = api_ready;
1056	coroapi.nready = &coro_nready;	1134	coroapi.nready = &coro_nready;
1057	coroapi.current = coro_current;	1135	coroapi.current = coro_current;
1058		1136
1059	GCoroAPI = &coroapi;	1137	GCoroAPI = &coroapi;
1060	sv_setiv(sv, (IV)&coroapi);	1138	sv_setiv (sv, (IV)&coroapi);
1061	SvREADONLY_on(sv);	1139	SvREADONLY_on (sv);
1062	}	1140	}
1063	}	1141	}
1064		1142
		1143	#if !PERL_MICRO
		1144
1065	void	1145	void
1066	ready(self)	1146	ready (self)
1067	SV * self	1147	SV * self
1068	PROTOTYPE: $	1148	PROTOTYPE: $
1069	CODE:	1149	CODE:
1070	api_ready (self);	1150	api_ready (self);
1071		1151
		1152	#endif
		1153
1072	int	1154	int
1073	nready(...)	1155	nready (...)
1074	PROTOTYPE:	1156	PROTOTYPE:
1075	CODE:	1157	CODE:
1076	RETVAL = coro_nready;	1158	RETVAL = coro_nready;
1077	OUTPUT:	1159	OUTPUT:
1078	RETVAL	1160	RETVAL
1079		1161
1080	void	1162	void
1081	schedule(...)	1163	schedule (...)
1082	PROTOTYPE:	1164	PROTOTYPE:
1083	CODE:	1165	CODE:
1084	api_schedule ();	1166	api_schedule ();
1085		1167
1086	void	1168	void
1087	cede(...)	1169	cede (...)
1088	PROTOTYPE:	1170	PROTOTYPE:
1089	CODE:	1171	CODE:
1090	api_cede ();	1172	api_cede ();
1091		1173
		1174	# and these are hacks
		1175	SV *
		1176	_aio_get_state ()
		1177	CODE:
		1178	{
		1179	struct {
		1180	int errorno;
		1181	int laststype;
		1182	int laststatval;
		1183	Stat_t statcache;
		1184	} data;
		1185
		1186	data.errorno = errno;
		1187	data.laststype = PL_laststype;
		1188	data.laststatval = PL_laststatval;
		1189	data.statcache = PL_statcache;
		1190
		1191	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1192	}
		1193	OUTPUT:
		1194	RETVAL
		1195
		1196	void
		1197	_aio_set_state (char *data_)
		1198	PROTOTYPE: $
		1199	CODE:
		1200	{
		1201	struct {
		1202	int errorno;
		1203	int laststype;
		1204	int laststatval;
		1205	Stat_t statcache;
		1206	} data = (void )data_;
		1207
		1208	errno = data->errorno;
		1209	PL_laststype = data->laststype;
		1210	PL_laststatval = data->laststatval;
		1211	PL_statcache = data->statcache;
		1212	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.40 by root, Tue Nov 27 01:41:41 2001 UTC vs. Revision 1.88 by root, Fri Nov 24 15:34:33 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.40 by root, Tue Nov 27 01:41:41 2001 UTC vs.
Revision 1.88 by root, Fri Nov 24 15:34:33 2006 UTC