[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 1.78 by root, Wed Nov 1 01:21:21 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 */
…		…
47	void *sptr;	100	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	101	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	102	} coro_stack;
50		103
51	struct coro {	104	struct coro {
		105	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		106	JMPENV start_env;
		107
52	/* the optional C context */	108	/* the optional C context */
53	coro_stack *stack;	109	coro_stack *stack;
54	void *cursp;	110	void *cursp;
55	int gencnt;	111	int gencnt;
56		112
…		…
68	AV *curstack;	124	AV *curstack;
69	AV *mainstack;	125	AV *mainstack;
70	SV **stack_sp;	126	SV **stack_sp;
71	OP *op;	127	OP *op;
72	SV **curpad;	128	SV **curpad;
		129	AV *comppad;
		130	CV *compcv;
73	SV **stack_base;	131	SV **stack_base;
74	SV **stack_max;	132	SV **stack_max;
75	SV **tmps_stack;	133	SV **tmps_stack;
76	I32 tmps_floor;	134	I32 tmps_floor;
77	I32 tmps_ix;	135	I32 tmps_ix;
…		…
86	I32 savestack_ix;	144	I32 savestack_ix;
87	I32 savestack_max;	145	I32 savestack_max;
88	OP **retstack;	146	OP **retstack;
89	I32 retstack_ix;	147	I32 retstack_ix;
90	I32 retstack_max;	148	I32 retstack_max;
		149	PMOP *curpm;
91	COP *curcop;	150	COP *curcop;
92	PMOP *curpm;
93	JMPENV *top_env;	151	JMPENV *top_env;
94		152
95	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
96	AV *args;	154	AV *args;
97	};	155	};
98		156
99	typedef struct coro *Coro__State;	157	typedef struct coro *Coro__State;
100	typedef struct coro *Coro__State_or_hashref;	158	typedef struct coro *Coro__State_or_hashref;
101		159
102	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV *
103	static HV *coro_state_stash;	161	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	{	162	{
113	AV *av;	163	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;	164	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		165
132	newpadlist = newAV ();	166	newpadlist = newAV ();
133	AvREAL_off (newpadlist);	167	AvREAL_off (newpadlist);
134	av_store (newpadlist, 0, (SV *) newpad_name);	168	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		169	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		170	--AvFILLp (padlist);
		171
		172	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
135	av_store (newpadlist, 1, (SV *) newpad);	173	av_store (newpadlist, 1, (SV *)newpad);
136		174
137	av = newAV (); /* will be @_ */	175	return newpadlist;
138	av_extend (av, 0);	176	}
139	av_store (newpad, 0, (SV *) av);
140	AvFLAGS (av) = AVf_REIFY;
141		177
142	for (ix = fpad; ix > 0; ix--)	178	static void
		179	free_padlist (pTHX_ AV *padlist)
		180	{
		181	/* may be during global destruction */
		182	if (SvREFCNT (padlist))
143	{	183	{
144	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	184	I32 i = AvFILLp (padlist);
145	if (namesv && namesv != &PL_sv_undef)	185	while (i >= 0)
146	{	186	{
147	char name = SvPVX (namesv); / XXX */	187	SV **svp = av_fetch (padlist, i--, FALSE);
148	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	188	if (svp)
149	{ /* lexical from outside? */
150	npad[ix] = SvREFCNT_inc (ppad[ix]);
151	}	189	{
152	else
153	{ /* our own lexical */
154	SV *sv;	190	SV *sv;
155	if (*name == '&')	191	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
156	sv = SvREFCNT_inc (ppad[ix]);	192	SvREFCNT_dec (sv);
157	else if (*name == '@')	193
158	sv = (SV *) newAV ();	194	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	}	195	}
167	}	196	}
168	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	197
169	{	198	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	}	199	}
		200	}
179		201
180	#if 0 /* return -ENOTUNDERSTOOD */	202	static int
181	/* Now that vars are all in place, clone nested closures. */	203	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		204	{
		205	AV *padlist;
		206	AV av = (AV )mg->mg_obj;
182		207
183	for (ix = fpad; ix > 0; ix--) {	208	/* casting is fun. */
184	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	209	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
185	if (namesv	210	free_padlist (aTHX_ padlist);
186	&& namesv != &PL_sv_undef	211
187	&& !(SvFLAGS(namesv) & SVf_FAKE)	212	SvREFCNT_dec (av);
188	&& *SvPVX(namesv) == '&'	213
189	&& CvCLONE(ppad[ix]))	214	return 0;
190	{	215	}
191	CV kid = cv_clone((CV)ppad[ix]);	216
192	SvREFCNT_dec(ppad[ix]);	217	#define PERL_MAGIC_coro PERL_MAGIC_ext
193	CvCLONE_on(kid);	218
194	SvPADMY_on(kid);	219	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
195	npad[ix] = (SV*)kid;	220
196	}	221	/* the next two functions merely cache the padlists */
		222	static void
		223	get_padlist (pTHX_ CV *cv)
		224	{
		225	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		226
		227	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
		228	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
		229	else
		230	{
		231	#if 0
		232	/* this should work - but it doesn't :( */
		233	CV *cp = Perl_cv_clone (aTHX_ cv);
		234	CvPADLIST (cv) = CvPADLIST (cp);
		235	CvPADLIST (cp) = 0;
		236	SvREFCNT_dec (cp);
		237	#else
		238	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		239	#endif
		240	}
		241	}
		242
		243	static void
		244	put_padlist (pTHX_ CV *cv)
		245	{
		246	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		247
		248	if (!mg)
		249	{
		250	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		251	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		252	mg->mg_virtual = &vtbl_coro;
		253	mg->mg_obj = (SV *)newAV ();
197	}	254	}
198	#endif
199		255
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));	256	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
248	}	257	}
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		258
276	#define SB do {	259	#define SB do {
277	#define SE } while (0)	260	#define SE } while (0)
278		261
279	#define LOAD(state) load_state(aTHX_ (state));	262	#define LOAD(state) load_state(aTHX_ (state));
280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	263	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281		264
282	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	265	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
283		266
284	static void	267	static void
285	load_state(pTHX_ Coro__State c)	268	load_state(pTHX_ Coro__State c)
286	{	269	{
287	PL_dowarn = c->dowarn;	270	PL_dowarn = c->dowarn;
…		…
291	PL_curstack = c->curstack;	274	PL_curstack = c->curstack;
292	PL_mainstack = c->mainstack;	275	PL_mainstack = c->mainstack;
293	PL_stack_sp = c->stack_sp;	276	PL_stack_sp = c->stack_sp;
294	PL_op = c->op;	277	PL_op = c->op;
295	PL_curpad = c->curpad;	278	PL_curpad = c->curpad;
		279	PL_comppad = c->comppad;
		280	PL_compcv = c->compcv;
296	PL_stack_base = c->stack_base;	281	PL_stack_base = c->stack_base;
297	PL_stack_max = c->stack_max;	282	PL_stack_max = c->stack_max;
298	PL_tmps_stack = c->tmps_stack;	283	PL_tmps_stack = c->tmps_stack;
299	PL_tmps_floor = c->tmps_floor;	284	PL_tmps_floor = c->tmps_floor;
300	PL_tmps_ix = c->tmps_ix;	285	PL_tmps_ix = c->tmps_ix;
…		…
306	PL_scopestack_ix = c->scopestack_ix;	291	PL_scopestack_ix = c->scopestack_ix;
307	PL_scopestack_max = c->scopestack_max;	292	PL_scopestack_max = c->scopestack_max;
308	PL_savestack = c->savestack;	293	PL_savestack = c->savestack;
309	PL_savestack_ix = c->savestack_ix;	294	PL_savestack_ix = c->savestack_ix;
310	PL_savestack_max = c->savestack_max;	295	PL_savestack_max = c->savestack_max;
		296	#if PERL_VERSION < 9
311	PL_retstack = c->retstack;	297	PL_retstack = c->retstack;
312	PL_retstack_ix = c->retstack_ix;	298	PL_retstack_ix = c->retstack_ix;
313	PL_retstack_max = c->retstack_max;	299	PL_retstack_max = c->retstack_max;
		300	#endif
		301	PL_curpm = c->curpm;
314	PL_curcop = c->curcop;	302	PL_curcop = c->curcop;
315	PL_top_env = c->top_env;	303	PL_top_env = c->top_env;
316		304
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	305	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	306	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
327	{	315	{
328	AV padlist = (AV )POPs;	316	AV padlist = (AV )POPs;
329		317
330	if (padlist)	318	if (padlist)
331	{	319	{
332	put_padlist (cv); /* mark this padlist as available */	320	put_padlist (aTHX_ cv); /* mark this padlist as available */
333	CvPADLIST(cv) = padlist;	321	CvPADLIST(cv) = padlist;
334	#ifdef USE_THREADS
335	/CvOWNER(cv) = (struct perl_thread )POPs;*/
336	#endif
337	}	322	}
338		323
339	++CvDEPTH(cv);	324	++CvDEPTH(cv);
340	}	325	}
341		326
…		…
368	if (CxTYPE(cx) == CXt_SUB)	353	if (CxTYPE(cx) == CXt_SUB)
369	{	354	{
370	CV *cv = cx->blk_sub.cv;	355	CV *cv = cx->blk_sub.cv;
371	if (CvDEPTH(cv))	356	if (CvDEPTH(cv))
372	{	357	{
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);	358	EXTEND (SP, CvDEPTH(cv)*2);
379		359
380	while (--CvDEPTH(cv))	360	while (--CvDEPTH(cv))
381	{	361	{
382	/* this tells the restore code to increment CvDEPTH */	362	/* this tells the restore code to increment CvDEPTH */
…		…
385	}	365	}
386		366
387	PUSHs ((SV *)CvPADLIST(cv));	367	PUSHs ((SV *)CvPADLIST(cv));
388	PUSHs ((SV *)cv);	368	PUSHs ((SV *)cv);
389		369
390	get_padlist (cv); /* this is a monster */	370	get_padlist (aTHX_ cv);
391	}	371	}
392	}	372	}
		373	#ifdef CXt_FORMAT
393	else if (CxTYPE(cx) == CXt_FORMAT)	374	else if (CxTYPE(cx) == CXt_FORMAT)
394	{	375	{
395	/* I never used formats, so how should I know how these are implemented? */	376	/* I never used formats, so how should I know how these are implemented? */
396	/* my bold guess is as a simple, plain sub... */	377	/* my bold guess is as a simple, plain sub... */
397	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	378	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
398	}	379	}
		380	#endif
399	}	381	}
400		382
401	if (top_si->si_type == PERLSI_MAIN)	383	if (top_si->si_type == PERLSI_MAIN)
402	break;	384	break;
403		385
…		…
420	c->curstack = PL_curstack;	402	c->curstack = PL_curstack;
421	c->mainstack = PL_mainstack;	403	c->mainstack = PL_mainstack;
422	c->stack_sp = PL_stack_sp;	404	c->stack_sp = PL_stack_sp;
423	c->op = PL_op;	405	c->op = PL_op;
424	c->curpad = PL_curpad;	406	c->curpad = PL_curpad;
		407	c->comppad = PL_comppad;
		408	c->compcv = PL_compcv;
425	c->stack_base = PL_stack_base;	409	c->stack_base = PL_stack_base;
426	c->stack_max = PL_stack_max;	410	c->stack_max = PL_stack_max;
427	c->tmps_stack = PL_tmps_stack;	411	c->tmps_stack = PL_tmps_stack;
428	c->tmps_floor = PL_tmps_floor;	412	c->tmps_floor = PL_tmps_floor;
429	c->tmps_ix = PL_tmps_ix;	413	c->tmps_ix = PL_tmps_ix;
…		…
435	c->scopestack_ix = PL_scopestack_ix;	419	c->scopestack_ix = PL_scopestack_ix;
436	c->scopestack_max = PL_scopestack_max;	420	c->scopestack_max = PL_scopestack_max;
437	c->savestack = PL_savestack;	421	c->savestack = PL_savestack;
438	c->savestack_ix = PL_savestack_ix;	422	c->savestack_ix = PL_savestack_ix;
439	c->savestack_max = PL_savestack_max;	423	c->savestack_max = PL_savestack_max;
		424	#if PERL_VERSION < 9
440	c->retstack = PL_retstack;	425	c->retstack = PL_retstack;
441	c->retstack_ix = PL_retstack_ix;	426	c->retstack_ix = PL_retstack_ix;
442	c->retstack_max = PL_retstack_max;	427	c->retstack_max = PL_retstack_max;
		428	#endif
		429	c->curpm = PL_curpm;
443	c->curcop = PL_curcop;	430	c->curcop = PL_curcop;
444	c->top_env = PL_top_env;	431	c->top_env = PL_top_env;
445	}	432	}
446		433
447	/*	434	/*
448	* allocate various perl stacks. This is an exact copy	435	* allocate various perl stacks. This is an exact copy
449	* of perl.c:init_stacks, except that it uses less memory	436	* of perl.c:init_stacks, except that it uses less memory
450	* on the assumption that coroutines do not usually need	437	* on the (sometimes correct) assumption that coroutines do
451	* a lot of stackspace.	438	* not usually need a lot of stackspace.
452	*/	439	*/
453	STATIC void	440	static void
454	coro_init_stacks (pTHX)	441	coro_init_stacks (pTHX)
455	{	442	{
		443	LOCK;
		444
456	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	445	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
457	PL_curstackinfo->si_type = PERLSI_MAIN;	446	PL_curstackinfo->si_type = PERLSI_MAIN;
458	PL_curstack = PL_curstackinfo->si_stack;	447	PL_curstack = PL_curstackinfo->si_stack;
459	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	448	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460		449
…		…
469		458
470	New(54,PL_markstack,16,I32);	459	New(54,PL_markstack,16,I32);
471	PL_markstack_ptr = PL_markstack;	460	PL_markstack_ptr = PL_markstack;
472	PL_markstack_max = PL_markstack + 16;	461	PL_markstack_max = PL_markstack + 16;
473		462
		463	#ifdef SET_MARK_OFFSET
474	SET_MARK_OFFSET;	464	SET_MARK_OFFSET;
		465	#endif
475		466
476	New(54,PL_scopestack,16,I32);	467	New(54,PL_scopestack,16,I32);
477	PL_scopestack_ix = 0;	468	PL_scopestack_ix = 0;
478	PL_scopestack_max = 16;	469	PL_scopestack_max = 16;
479		470
480	New(54,PL_savestack,96,ANY);	471	New(54,PL_savestack,96,ANY);
481	PL_savestack_ix = 0;	472	PL_savestack_ix = 0;
482	PL_savestack_max = 96;	473	PL_savestack_max = 96;
483		474
		475	#if PERL_VERSION < 9
484	New(54,PL_retstack,8,OP*);	476	New(54,PL_retstack,8,OP*);
485	PL_retstack_ix = 0;	477	PL_retstack_ix = 0;
486	PL_retstack_max = 8;	478	PL_retstack_max = 8;
		479	#endif
		480
		481	UNLOCK;
487	}	482	}
488		483
489	/*	484	/*
490	* destroy the stacks, the callchain etc...	485	* destroy the stacks, the callchain etc...
491	* still there is a memleak of 128 bytes...
492	*/	486	*/
493	STATIC void	487	static void
494	destroy_stacks(pTHX)	488	destroy_stacks(pTHX)
495	{	489	{
496	if (!IN_DESTRUCT)	490	if (!IN_DESTRUCT)
497	{	491	{
498	/* is this ugly, I ask? */	492	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	493	LEAVE_SCOPE (0);
500	LEAVE;
501		494
502	/* sure it is, but more important: is it correct?? :/ */	495	/* 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;	496	FREETMPS;
		497
		498	/POPSTACK_TO (PL_mainstack);//D//use/
505	}	499	}
506		500
507	while (PL_curstackinfo->si_next)	501	while (PL_curstackinfo->si_next)
508	PL_curstackinfo = PL_curstackinfo->si_next;	502	PL_curstackinfo = PL_curstackinfo->si_next;
509		503
510	while (PL_curstackinfo)	504	while (PL_curstackinfo)
511	{	505	{
512	PERL_SI *p = PL_curstackinfo->si_prev;	506	PERL_SI *p = PL_curstackinfo->si_prev;
513		507
514	{	508	{ /D//remove/
515	dSP;	509	dSP;
516	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	510	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
517	PUTBACK; /* possibly superfluous */	511	PUTBACK; /* possibly superfluous */
518	}	512	}
519		513
520	if (!IN_DESTRUCT)	514	if (!IN_DESTRUCT)
521	{	515	{
522	dounwind(-1);	516	dounwind (-1);/D//remove/
523	SvREFCNT_dec(PL_curstackinfo->si_stack);	517	SvREFCNT_dec (PL_curstackinfo->si_stack);
524	}	518	}
525		519
526	Safefree(PL_curstackinfo->si_cxstack);	520	Safefree (PL_curstackinfo->si_cxstack);
527	Safefree(PL_curstackinfo);	521	Safefree (PL_curstackinfo);
528	PL_curstackinfo = p;	522	PL_curstackinfo = p;
529	}	523	}
530		524
531	Safefree(PL_tmps_stack);	525	Safefree (PL_tmps_stack);
532	Safefree(PL_markstack);	526	Safefree (PL_markstack);
533	Safefree(PL_scopestack);	527	Safefree (PL_scopestack);
534	Safefree(PL_savestack);	528	Safefree (PL_savestack);
		529	#if PERL_VERSION < 9
535	Safefree(PL_retstack);	530	Safefree (PL_retstack);
		531	#endif
536	}	532	}
537		533
538	static void	534	static void
539	allocate_stack (Coro__State ctx, int alloc)	535	allocate_stack (Coro__State ctx, int alloc)
540	{	536	{
…		…
543	New (0, stack, 1, coro_stack);	539	New (0, stack, 1, coro_stack);
544		540
545	stack->refcnt = 1;	541	stack->refcnt = 1;
546	stack->usecnt = 1;	542	stack->usecnt = 1;
547	stack->gencnt = ctx->gencnt = 0;	543	stack->gencnt = ctx->gencnt = 0;
		544
548	if (alloc)	545	if (alloc)
549	{	546	{
550	#if HAVE_MMAP	547	#if HAVE_MMAP
551	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	548	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);	549	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
553	if (stack->sptr == (void *)-1)	550	if (stack->sptr != (void *)-1)
554	#endif
555	{	551	{
556	/FIXME//D//* reasonable stack size! */	552	# if STACKGUARD
		553	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		554	# endif
		555	}
		556	else
		557	#endif
		558	{
557	stack->ssize = -4096 * sizeof (long);	559	stack->ssize = - (STACKSIZE * (long)sizeof (long));
558	New (0, stack->sptr, 4096, long);	560	New (0, stack->sptr, STACKSIZE, long);
559	}	561	}
560	}	562	}
561	else	563	else
562	stack->sptr = 0;	564	stack->sptr = 0;
563		565
…		…
577	{	579	{
578	#ifdef HAVE_MMAP	580	#ifdef HAVE_MMAP
579	if (stack->ssize > 0 && stack->sptr)	581	if (stack->ssize > 0 && stack->sptr)
580	munmap (stack->sptr, stack->ssize);	582	munmap (stack->sptr, stack->ssize);
581	else	583	else
582	#else	584	#endif
583	Safefree (stack->sptr);	585	Safefree (stack->sptr);
584	#endif	586
585	Safefree (stack);	587	Safefree (stack);
586	}	588	}
587	else if (ctx->gencnt == stack->gencnt)	589	else if (ctx->gencnt == stack->gencnt)
588	--stack->usecnt;	590	--stack->usecnt;
589	}	591	}
…		…
593	setup_coro (void *arg)	595	setup_coro (void *arg)
594	{	596	{
595	/*	597	/*
596	* emulate part of the perl startup here.	598	* emulate part of the perl startup here.
597	*/	599	*/
		600	dTHX;
598	dSP;	601	dSP;
599	Coro__State ctx = (Coro__State)arg;	602	Coro__State ctx = (Coro__State)arg;
600	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	603	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
601		604
602	coro_init_stacks (aTHX);	605	coro_init_stacks (aTHX);
603	PL_curpm = 0; /* segfault on first access */
604	/PL_curcop = 0;/	606	/PL_curcop = 0;/
605	/PL_in_eval = PL_in_eval;/ /* inherit */	607	/PL_in_eval = PL_in_eval;/ /* inherit */
606	SvREFCNT_dec (GvAV (PL_defgv));	608	SvREFCNT_dec (GvAV (PL_defgv));
607	GvAV (PL_defgv) = ctx->args;	609	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
608		610
609	SPAGAIN;	611	SPAGAIN;
610		612
611	if (ctx->stack)	613	if (ctx->stack)
612	{	614	{
…		…
639	* that doesn't matter, though, since it is only	641	* that doesn't matter, though, since it is only
640	* pp_nextstate and we never return...	642	* pp_nextstate and we never return...
641	* ah yes, and I don't care anyways ;)	643	* ah yes, and I don't care anyways ;)
642	*/	644	*/
643	PUTBACK;	645	PUTBACK;
644	PL_op = pp_entersub();	646	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
645	SPAGAIN;	647	SPAGAIN;
646		648
647	ENTER; /* necessary e.g. for dounwind */	649	ENTER; /* necessary e.g. for dounwind */
648	}	650	}
649	}	651	}
…		…
652	continue_coro (void *arg)	654	continue_coro (void *arg)
653	{	655	{
654	/*	656	/*
655	* this is a _very_ stripped down perl interpreter ;)	657	* this is a _very_ stripped down perl interpreter ;)
656	*/	658	*/
		659	dTHX;
657	Coro__State ctx = (Coro__State)arg;	660	Coro__State ctx = (Coro__State)arg;
658	JMPENV coro_start_env;
659		661
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;	662	PL_top_env = &ctx->start_env;
665		663
666	ctx->cursp = 0;	664	ctx->cursp = 0;
667	PL_op = PL_op->op_next;	665	PL_op = PL_op->op_next;
668	CALLRUNOPS(aTHX);	666	CALLRUNOPS(aTHX);
669		667
670	abort ();	668	abort ();
671	}	669	}
672		670
673	STATIC void	671	static void
674	transfer(pTHX_ struct coro prev, struct coro next, int flags)	672	transfer (pTHX_ struct coro prev, struct coro next, int flags)
675	{	673	{
676	dSTACKLEVEL;	674	dSTACKLEVEL;
677	static struct coro *xnext;
678		675
679	if (prev != next)	676	if (prev != next)
680	{	677	{
681	xnext = next;
682
683	if (next->mainstack)	678	if (next->mainstack)
684	{	679	{
		680	LOCK;
685	SAVE (prev, flags);	681	SAVE (prev, flags);
686	LOAD (next);	682	LOAD (next);
		683	UNLOCK;
687		684
688	/* mark this state as in-use */	685	/* mark this state as in-use */
689	next->mainstack = 0;	686	next->mainstack = 0;
690	next->tmps_ix = -2;	687	next->tmps_ix = -2;
691		688
…		…
710	continue_coro, (void *)next,	707	continue_coro, (void *)next,
711	next->stack->sptr, labs (next->stack->ssize));	708	next->stack->sptr, labs (next->stack->ssize));
712	}	709	}
713		710
714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		712	prev->cursp = stacklevel;
715	/* don't add any code here */	713	/* don't add any code here */
716	}	714	}
717		715	else
		716	next->cursp = stacklevel;
718	}	717	}
719	else if (next->tmps_ix == -2)	718	else if (next->tmps_ix == -2)
720	croak ("tried to transfer to running coroutine");	719	croak ("tried to transfer to running coroutine");
721	else	720	else
722	{	721	{
		722	LOCK;
723	SAVE (prev, -1); /* first get rid of the old state */	723	SAVE (prev, -1); /* first get rid of the old state */
		724	UNLOCK;
724		725
725	if (flags & TRANSFER_SAVE_CCTXT)	726	if (flags & TRANSFER_SAVE_CCTXT)
726	{	727	{
727	if (!prev->stack)	728	if (!prev->stack)
728	allocate_stack (prev, 0);	729	allocate_stack (prev, 0);
729		730
730	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	731	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
731	{	732	{
		733	PL_top_env = &next->start_env;
		734
732	setup_coro (next);	735	setup_coro (next);
		736	next->cursp = stacklevel;
733		737
734	prev->stack->refcnt++;	738	prev->stack->refcnt++;
735	prev->stack->usecnt++;	739	prev->stack->usecnt++;
736	next->stack = prev->stack;	740	next->stack = prev->stack;
737	next->gencnt = prev->gencnt;	741	next->gencnt = prev->gencnt;
738	}	742	}
739	else	743	else
740	{	744	{
		745	assert (!next->stack);
741	allocate_stack (next, 1);	746	allocate_stack (next, 1);
742	coro_create (&(next->stack->cctx),	747	coro_create (&(next->stack->cctx),
743	setup_coro, (void *)next,	748	setup_coro, (void *)next,
744	next->stack->sptr, labs (next->stack->ssize));	749	next->stack->sptr, labs (next->stack->ssize));
745	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	750	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		751	prev->cursp = stacklevel;
746	/* don't add any code here */	752	/* don't add any code here */
747	}	753	}
748	}	754	}
749	else	755	else
		756	{
750	setup_coro (next);	757	setup_coro (next);
		758	next->cursp = stacklevel;
		759	}
751	}	760	}
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	}	761	}
760		762
		763	LOCK;
761	if (coro_mortal)	764	if (coro_mortal)
762	{	765	{
763	SvREFCNT_dec (coro_mortal);	766	SvREFCNT_dec (coro_mortal);
764	coro_mortal = 0;	767	coro_mortal = 0;
765	}	768	}
		769	UNLOCK;
766	}	770	}
767		771
768	#define SV_CORO(sv,func) \	772	#define SV_CORO(sv,func) \
769	do { \	773	do { \
770	if (SvROK (sv)) \	774	if (SvROK (sv)) \
771	sv = SvRV (sv); \	775	sv = SvRV (sv); \
772	\	776	\
773	if (SvTYPE(sv) == SVt_PVHV) \	777	if (SvTYPE (sv) == SVt_PVHV) \
774	{ \	778	{ \
775	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	779	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
776	\	780	\
777	if (!he) \	781	if (!he) \
778	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	782	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
779	\	783	\
780	(sv) = SvRV (HeVAL(he)); \	784	(sv) = SvRV (HeVAL(he)); \
781	} \	785	} \
782	\	786	\
783	/* must also be changed inside Coro::Cont::yield */ \	787	/* must also be changed inside Coro::Cont::yield */ \
784	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	788	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
785	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	789	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
786	\	790	\
787	} while(0)	791	} while(0)
788		792
789	#define SvSTATE(sv) (struct coro *)SvIV (sv)	793	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
790		794
791	static void	795	static void
792	api_transfer(pTHX_ SV prev, SV next, int flags)	796	api_transfer(pTHX_ SV prev, SV next, int flags)
793	{	797	{
794	SV_CORO (prev, "Coro::transfer");	798	SV_CORO (prev, "Coro::transfer");
795	SV_CORO (next, "Coro::transfer");	799	SV_CORO (next, "Coro::transfer");
796		800
797	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	801	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
798	}	802	}
799		803
800	/ Coro ******************************************************************/	804	/ Coro ******************************************************************/
801		805
802	#define PRIO_MAX 3	806	#define PRIO_MAX 3
…		…
810	static GV coro_current, coro_idle;	814	static GV coro_current, coro_idle;
811	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	815	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
812	static int coro_nready;	816	static int coro_nready;
813		817
814	static void	818	static void
815	coro_enq (SV *sv)	819	coro_enq (pTHX_ SV *sv)
816	{	820	{
		821	SV **xprio;
		822	int prio;
		823
817	if (SvTYPE (sv) == SVt_PVHV)	824	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");	825	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		826
		827	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		828	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		829
		830	prio = prio > PRIO_MAX ? PRIO_MAX
		831	: prio < PRIO_MIN ? PRIO_MIN
		832	: prio;
		833
		834	av_push (coro_ready [prio - PRIO_MIN], sv);
		835	coro_nready++;
833	}	836	}
834		837
835	static SV *	838	static SV *
836	coro_deq (int min_prio)	839	coro_deq (pTHX_ int min_prio)
837	{	840	{
838	int prio = PRIO_MAX - PRIO_MIN;	841	int prio = PRIO_MAX - PRIO_MIN;
839		842
840	min_prio -= PRIO_MIN;	843	min_prio -= PRIO_MIN;
841	if (min_prio < 0)	844	if (min_prio < 0)
…		…
852	}	855	}
853		856
854	static void	857	static void
855	api_ready (SV *coro)	858	api_ready (SV *coro)
856	{	859	{
		860	dTHX;
		861
857	if (SvROK (coro))	862	if (SvROK (coro))
858	coro = SvRV (coro);	863	coro = SvRV (coro);
859		864
		865	LOCK;
860	coro_enq (SvREFCNT_inc (coro));	866	coro_enq (aTHX_ SvREFCNT_inc (coro));
		867	UNLOCK;
861	}	868	}
862		869
863	static void	870	static void
864	api_schedule (void)	871	api_schedule (void)
865	{	872	{
		873	dTHX;
		874
866	SV prev, next;	875	SV prev, next;
867		876
		877	LOCK;
		878
868	prev = SvRV (GvSV (coro_current));	879	prev = SvRV (GvSV (coro_current));
869	next = coro_deq (PRIO_MIN);	880	next = coro_deq (aTHX_ PRIO_MIN);
870		881
871	if (!next)	882	if (!next)
872	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	883	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
873		884
874	/* free this only after the transfer */	885	/* free this only after the transfer */
…		…
877		888
878	SvRV (GvSV (coro_current)) = next;	889	SvRV (GvSV (coro_current)) = next;
879		890
880	SV_CORO (next, "Coro::schedule");	891	SV_CORO (next, "Coro::schedule");
881		892
		893	UNLOCK;
		894
882	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	895	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
883	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	896	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
884	}	897	}
885		898
886	static void	899	static void
887	api_cede (void)	900	api_cede (void)
888	{	901	{
		902	dTHX;
		903
		904	LOCK;
889	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	905	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		906	UNLOCK;
890		907
891	api_schedule ();	908	api_schedule ();
892	}	909	}
893		910
894	MODULE = Coro::State PACKAGE = Coro::State	911	MODULE = Coro::State PACKAGE = Coro::State
895		912
896	PROTOTYPES: ENABLE	913	PROTOTYPES: ENABLE
897		914
898	BOOT:	915	BOOT:
899	{ /* {} necessary for stoopid perl-5.6.x */	916	{ /* {} necessary for stoopid perl-5.6.x */
		917	#ifdef USE_ITHREADS
		918	MUTEX_INIT (&coro_mutex);
		919	#endif
		920	BOOT_PAGESIZE;
		921
900	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	922	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
901	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	923	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
902	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	924	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
903		925
904	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	926	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
905	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	927	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
906	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	928	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));	929	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
909
910	if (!padlist_cache)
911	padlist_cache = newHV ();
912		930
913	main_mainstack = PL_mainstack;	931	main_mainstack = PL_mainstack;
914		932
915	coroapi.ver = CORO_API_VERSION;	933	coroapi.ver = CORO_API_VERSION;
916	coroapi.transfer = api_transfer;	934	coroapi.transfer = api_transfer;
…		…
924	Coro__State coro;	942	Coro__State coro;
925		943
926	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	944	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
927	croak ("Coro::State::_newprocess expects an arrayref");	945	croak ("Coro::State::_newprocess expects an arrayref");
928		946
929	New (0, coro, 1, struct coro);	947	Newz (0, coro, 1, struct coro);
930		948
931	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	949	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
932	coro->mainstack = 0; /* actual work is done inside transfer */	950	/coro->mainstack = 0; //actual work is done inside transfer /
933	coro->stack = 0;	951	/coro->stack = 0;/
		952
		953	/* same as JMPENV_BOOTSTRAP */
		954	/* we might be able to recycle start_env, but safe is safe */
		955	/Zero(&coro->start_env, 1, JMPENV);/
		956	coro->start_env.je_ret = -1;
		957	coro->start_env.je_mustcatch = TRUE;
934		958
935	RETVAL = coro;	959	RETVAL = coro;
936	OUTPUT:	960	OUTPUT:
937	RETVAL	961	RETVAL
938		962
…		…
957	if (coro->mainstack && coro->mainstack != main_mainstack)	981	if (coro->mainstack && coro->mainstack != main_mainstack)
958	{	982	{
959	struct coro temp;	983	struct coro temp;
960		984
961	PUTBACK;	985	PUTBACK;
962	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	986	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
963	LOAD(aTHX_ coro);	987	LOAD (aTHX_ coro);
964	SPAGAIN;	988	SPAGAIN;
965		989
966	destroy_stacks (aTHX);	990	destroy_stacks (aTHX);
967		991
968	LOAD((&temp)); /* this will get rid of defsv etc.. */	992	LOAD ((&temp)); /* this will get rid of defsv etc.. */
969	SPAGAIN;	993	SPAGAIN;
970		994
971	coro->mainstack = 0;	995	coro->mainstack = 0;
972	}	996	}
973		997
974	deallocate_stack (coro);	998	deallocate_stack (coro);
975		999	SvREFCNT_dec (coro->args);
976	Safefree (coro);	1000	Safefree (coro);
977
978	void
979	flush()
980	CODE:
981	#ifdef MAY_FLUSH
982	flush_padlist_cache ();
983	#endif
984		1001
985	void	1002	void
986	_exit(code)	1003	_exit(code)
987	int code	1004	int code
988	PROTOTYPE: $	1005	PROTOTYPE: $
989	CODE:	1006	CODE:
990	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
991	_exit (code);	1007	_exit (code);
992	#else
993	signal (SIGTERM, SIG_DFL);
994	raise (SIGTERM);
995	exit (code);
996	#endif
997		1008
998	MODULE = Coro::State PACKAGE = Coro::Cont	1009	MODULE = Coro::State PACKAGE = Coro::Cont
999		1010
1000	# this is slightly dirty (should expose a c-level api)	1011	# this is slightly dirty (should expose a c-level api)
1001		1012
1002	void	1013	void
1003	yield(...)	1014	yield(...)
1004	PROTOTYPE: @	1015	PROTOTYPE: @
1005	CODE:	1016	CODE:
1006	static SV *returnstk;	1017	SV *yieldstack;
1007	SV *sv;	1018	SV *sv;
1008	AV *defav = GvAV (PL_defgv);	1019	AV *defav = GvAV (PL_defgv);
1009	struct coro prev, next;	1020	struct coro prev, next;
1010		1021
1011	if (!returnstk)	1022	yieldstack = *hv_fetch (
1012	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1023	(HV *)SvRV (GvSV (coro_current)),
		1024	"yieldstack", sizeof ("yieldstack") - 1,
		1025	0
		1026	);
1013		1027
1014	/* set up @_ -- ugly */	1028	/* set up @_ -- ugly */
1015	av_clear (defav);	1029	av_clear (defav);
1016	av_fill (defav, items - 1);	1030	av_fill (defav, items - 1);
1017	while (items--)	1031	while (items--)
1018	av_store (defav, items, SvREFCNT_inc (ST(items)));	1032	av_store (defav, items, SvREFCNT_inc (ST(items)));
1019		1033
1020	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1021	sv = av_pop ((AV *)SvRV (returnstk));	1034	sv = av_pop ((AV *)SvRV (yieldstack));
1022	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1035	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));
1023	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1036	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
1024	SvREFCNT_dec (sv);	1037	SvREFCNT_dec (sv);
1025		1038
1026	transfer(aTHX_ prev, next, 0);	1039	transfer (aTHX_ prev, next, 0);
1027		1040
1028	MODULE = Coro::State PACKAGE = Coro	1041	MODULE = Coro::State PACKAGE = Coro
1029		1042
1030	# this is slightly dirty (should expose a c-level api)	1043	# this is slightly dirty (should expose a c-level api)
1031		1044
…		…
1060	sv_setiv(sv, (IV)&coroapi);	1073	sv_setiv(sv, (IV)&coroapi);
1061	SvREADONLY_on(sv);	1074	SvREADONLY_on(sv);
1062	}	1075	}
1063	}	1076	}
1064		1077
		1078	#if !PERL_MICRO
		1079
1065	void	1080	void
1066	ready(self)	1081	ready(self)
1067	SV * self	1082	SV * self
1068	PROTOTYPE: $	1083	PROTOTYPE: $
1069	CODE:	1084	CODE:
1070	api_ready (self);	1085	api_ready (self);
		1086
		1087	#endif
1071		1088
1072	int	1089	int
1073	nready(...)	1090	nready(...)
1074	PROTOTYPE:	1091	PROTOTYPE:
1075	CODE:	1092	CODE:
…		…
1087	cede(...)	1104	cede(...)
1088	PROTOTYPE:	1105	PROTOTYPE:
1089	CODE:	1106	CODE:
1090	api_cede ();	1107	api_cede ();
1091		1108
		1109	# and these are hacks
		1110	SV *
		1111	_aio_get_state ()
		1112	CODE:
		1113	{
		1114	struct {
		1115	int errorno;
		1116	int laststype;
		1117	int laststatval;
		1118	Stat_t statcache;
		1119	} data;
		1120
		1121	data.errorno = errno;
		1122	data.laststype = PL_laststype;
		1123	data.laststatval = PL_laststatval;
		1124	data.statcache = PL_statcache;
		1125
		1126	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1127	}
		1128	OUTPUT:
		1129	RETVAL
		1130
		1131	void
		1132	_aio_set_state (char *data_)
		1133	PROTOTYPE: $
		1134	CODE:
		1135	{
		1136	struct {
		1137	int errorno;
		1138	int laststype;
		1139	int laststatval;
		1140	Stat_t statcache;
		1141	} data = (void )data_;
		1142
		1143	errno = data->errorno;
		1144	PL_laststype = data->laststype;
		1145	PL_laststatval = data->laststatval;
		1146	PL_statcache = data->statcache;
		1147	}

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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 1.78 by root, Wed Nov 1 01:21:21 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 1.78 by root, Wed Nov 1 01:21:21 2006 UTC