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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.50 by pcg, Sun Nov 30 16:59:15 2003 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
		3	#include "libcoro/coro.c"
		4
1	#include "EXTERN.h"	5	#include "EXTERN.h"
2	#include "perl.h"	6	#include "perl.h"
3	#include "XSUB.h"	7	#include "XSUB.h"
4		8
5	#include "patchlevel.h"	9	#include "patchlevel.h"
6		10
7	#if PATCHLEVEL < 6	11	#if PERL_VERSION < 6
8	# ifndef PL_ppaddr	12	# ifndef PL_ppaddr
9	# define PL_ppaddr ppaddr	13	# define PL_ppaddr ppaddr
10	# endif	14	# endif
11	# ifndef call_sv	15	# ifndef call_sv
12	# define call_sv perl_call_sv	16	# define call_sv perl_call_sv
23	# ifndef IS_PADCONST	27	# ifndef IS_PADCONST
24	# define IS_PADCONST(v) 0	28	# define IS_PADCONST(v) 0
25	# endif	29	# endif
26	#endif	30	#endif
27		31
28	#include "libcoro/coro.c"
29
30	#include <signal.h>	32	#include <errno.h>
		33
		34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		35	# undef STACKGUARD
		36	#endif
		37
		38	#ifndef STACKGUARD
		39	# define STACKGUARD 0
		40	#endif
31		41
32	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
33	# include <unistd.h>	43	# include <unistd.h>
34	# include <sys/mman.h>	44	# include <sys/mman.h>
35	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
…		…
37	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
38	# else	48	# else
39	# undef HAVE_MMAP	49	# undef HAVE_MMAP
40	# endif	50	# endif
41	# endif	51	# endif
		52	# include <limits.h>
		53	# ifndef PAGESIZE
		54	# define PAGESIZE pagesize
		55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
		56	static long pagesize;
		57	# else
		58	# define BOOT_PAGESIZE
		59	# endif
42	#endif	60	#endif
43		61
44	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
45	#define UCORO_STATE "_coro_state"	63	#define UCORO_STATE "_coro_state"
46		64
…		…
53		71
54	#define labs(l) ((l) >= 0 ? (l) : -(l))	72	#define labs(l) ((l) >= 0 ? (l) : -(l))
55		73
56	#include "CoroAPI.h"	74	#include "CoroAPI.h"
57		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
58	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 */
59		91
60	/* 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... */
61	typedef struct {	93	typedef struct {
62	int refcnt; /* pointer reference counter */	94	int refcnt; /* pointer reference counter */
63	int usecnt; /* shared by how many coroutines */	95	int usecnt; /* shared by how many coroutines */
…		…
68	void *sptr;	100	void *sptr;
69	long ssize; /* positive == mmap, otherwise malloc */	101	long ssize; /* positive == mmap, otherwise malloc */
70	} coro_stack;	102	} coro_stack;
71		103
72	struct coro {	104	struct coro {
73	/* the top-level JMPENV for each coroutine, needed to catch dies. */
74	JMPENV start_env;
75
76	/* the optional C context */	105	/* the optional C context */
77	coro_stack *stack;	106	coro_stack *stack;
78	void *cursp;	107	void *cursp;
79	int gencnt;	108	int gencnt;
80		109
…		…
93	AV *mainstack;	122	AV *mainstack;
94	SV **stack_sp;	123	SV **stack_sp;
95	OP *op;	124	OP *op;
96	SV **curpad;	125	SV **curpad;
97	AV *comppad;	126	AV *comppad;
		127	CV *compcv;
98	SV **stack_base;	128	SV **stack_base;
99	SV **stack_max;	129	SV **stack_max;
100	SV **tmps_stack;	130	SV **tmps_stack;
101	I32 tmps_floor;	131	I32 tmps_floor;
102	I32 tmps_ix;	132	I32 tmps_ix;
…		…
111	I32 savestack_ix;	141	I32 savestack_ix;
112	I32 savestack_max;	142	I32 savestack_max;
113	OP **retstack;	143	OP **retstack;
114	I32 retstack_ix;	144	I32 retstack_ix;
115	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
116	COP *curcop;	147	COP *curcop;
117	JMPENV *top_env;	148	JMPENV *top_env;
118		149
		150	/* coro process data */
		151	int prio;
		152
119	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
120	AV *args;	154	AV *args;
		155	int refcnt;
121	};	156	};
122		157
123	typedef struct coro *Coro__State;	158	typedef struct coro *Coro__State;
124	typedef struct coro *Coro__State_or_hashref;	159	typedef struct coro *Coro__State_or_hashref;
125		160
126	static AV main_mainstack; / used to differentiate between $main and others */	161	static AV *
127	static HV *coro_state_stash;	162	coro_clone_padlist (pTHX_ CV *cv)
128	static SV *ucoro_state_sv;
129	static U32 ucoro_state_hash;
130	static HV *padlist_cache;
131	static SV coro_mortal; / will be freed after next transfer */
132
133	/* mostly copied from op.c:cv_clone2 */
134	STATIC AV *
135	clone_padlist (AV *protopadlist)
136	{	163	{
137	AV *av;	164	AV *padlist = CvPADLIST (cv);
138	I32 ix;
139	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
140	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
141	SV **pname = AvARRAY (protopad_name);
142	SV **ppad = AvARRAY (protopad);
143	I32 fname = AvFILLp (protopad_name);
144	I32 fpad = AvFILLp (protopad);
145	AV newpadlist, newpad_name, *newpad;	165	AV newpadlist, newpad;
146	SV **npad;
147
148	newpad_name = newAV ();
149	for (ix = fname; ix >= 0; ix--)
150	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
151
152	newpad = newAV ();
153	av_fill (newpad, AvFILLp (protopad));
154	npad = AvARRAY (newpad);
155		166
156	newpadlist = newAV ();	167	newpadlist = newAV ();
157	AvREAL_off (newpadlist);	168	AvREAL_off (newpadlist);
158	av_store (newpadlist, 0, (SV *) newpad_name);	169	#if PERL_VERSION < 9
		170	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		171	#else
		172	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		173	#endif
		174	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		175	--AvFILLp (padlist);
		176
		177	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
159	av_store (newpadlist, 1, (SV *) newpad);	178	av_store (newpadlist, 1, (SV *)newpad);
160
161	av = newAV (); /* will be @_ */
162	av_extend (av, 0);
163	av_store (newpad, 0, (SV *) av);
164	AvFLAGS (av) = AVf_REIFY;
165
166	for (ix = fpad; ix > 0; ix--)
167	{
168	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
169	if (namesv && namesv != &PL_sv_undef)
170	{
171	char name = SvPVX (namesv); / XXX */
172	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
173	{ /* lexical from outside? */
174	npad[ix] = SvREFCNT_inc (ppad[ix]);
175	}
176	else
177	{ /* our own lexical */
178	SV *sv;
179	if (*name == '&')
180	sv = SvREFCNT_inc (ppad[ix]);
181	else if (*name == '@')
182	sv = (SV *) newAV ();
183	else if (*name == '%')
184	sv = (SV *) newHV ();
185	else
186	sv = NEWSV (0, 0);
187	#ifdef SvPADBUSY
188	if (!SvPADBUSY (sv))
189	#endif
190	SvPADMY_on (sv);
191	npad[ix] = sv;
192	}
193	}
194	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
195	{
196	npad[ix] = SvREFCNT_inc (ppad[ix]);
197	}
198	else
199	{
200	SV *sv = NEWSV (0, 0);
201	SvPADTMP_on (sv);
202	npad[ix] = sv;
203	}
204	}
205
206	#if 0 /* return -ENOTUNDERSTOOD */
207	/* Now that vars are all in place, clone nested closures. */
208
209	for (ix = fpad; ix > 0; ix--) {
210	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
211	if (namesv
212	&& namesv != &PL_sv_undef
213	&& !(SvFLAGS(namesv) & SVf_FAKE)
214	&& *SvPVX(namesv) == '&'
215	&& CvCLONE(ppad[ix]))
216	{
217	CV kid = cv_clone((CV)ppad[ix]);
218	SvREFCNT_dec(ppad[ix]);
219	CvCLONE_on(kid);
220	SvPADMY_on(kid);
221	npad[ix] = (SV*)kid;
222	}
223	}
224	#endif
225		179
226	return newpadlist;	180	return newpadlist;
227	}	181	}
228		182
229	STATIC void	183	static void
230	free_padlist (AV *padlist)	184	free_padlist (pTHX_ AV *padlist)
231	{	185	{
232	/* may be during global destruction */	186	/* may be during global destruction */
233	if (SvREFCNT (padlist))	187	if (SvREFCNT (padlist))
234	{	188	{
235	I32 i = AvFILLp (padlist);	189	I32 i = AvFILLp (padlist);
…		…
248		202
249	SvREFCNT_dec ((SV*)padlist);	203	SvREFCNT_dec ((SV*)padlist);
250	}	204	}
251	}	205	}
252		206
253	STATIC int	207	static int
254	coro_cv_free (SV sv, MAGIC mg)	208	coro_cv_free (pTHX_ SV sv, MAGIC mg)
255	{	209	{
256	AV *padlist;	210	AV *padlist;
257	AV av = (AV )mg->mg_obj;	211	AV av = (AV )mg->mg_obj;
258		212
259	/* casting is fun. */	213	/* casting is fun. */
260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	214	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
261	free_padlist (padlist);	215	free_padlist (aTHX_ padlist);
		216
		217	SvREFCNT_dec (av);
		218
		219	return 0;
262	}	220	}
263		221
264	#define PERL_MAGIC_coro PERL_MAGIC_ext	222	#define PERL_MAGIC_coro PERL_MAGIC_ext
265		223
266	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	224	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
267		225
268	/* the next two functions merely cache the padlists */	226	/* the next two functions merely cache the padlists */
269	STATIC void	227	static void
270	get_padlist (CV *cv)	228	get_padlist (pTHX_ CV *cv)
271	{	229	{
272	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	230	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
273		231
274	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	232	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
275	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	233	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
276	else	234	else
		235	{
		236	#if 0
		237	/* this should work - but it doesn't :( */
		238	CV *cp = Perl_cv_clone (aTHX_ cv);
		239	CvPADLIST (cv) = CvPADLIST (cp);
		240	CvPADLIST (cp) = 0;
		241	SvREFCNT_dec (cp);
		242	#else
277	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	243	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		244	#endif
		245	}
278	}	246	}
279		247
280	STATIC void	248	static void
281	put_padlist (CV *cv)	249	put_padlist (pTHX_ CV *cv)
282	{	250	{
283	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	251	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
284		252
285	if (!mg)	253	if (!mg)
286	{	254	{
…		…
312	PL_mainstack = c->mainstack;	280	PL_mainstack = c->mainstack;
313	PL_stack_sp = c->stack_sp;	281	PL_stack_sp = c->stack_sp;
314	PL_op = c->op;	282	PL_op = c->op;
315	PL_curpad = c->curpad;	283	PL_curpad = c->curpad;
316	PL_comppad = c->comppad;	284	PL_comppad = c->comppad;
		285	PL_compcv = c->compcv;
317	PL_stack_base = c->stack_base;	286	PL_stack_base = c->stack_base;
318	PL_stack_max = c->stack_max;	287	PL_stack_max = c->stack_max;
319	PL_tmps_stack = c->tmps_stack;	288	PL_tmps_stack = c->tmps_stack;
320	PL_tmps_floor = c->tmps_floor;	289	PL_tmps_floor = c->tmps_floor;
321	PL_tmps_ix = c->tmps_ix;	290	PL_tmps_ix = c->tmps_ix;
…		…
327	PL_scopestack_ix = c->scopestack_ix;	296	PL_scopestack_ix = c->scopestack_ix;
328	PL_scopestack_max = c->scopestack_max;	297	PL_scopestack_max = c->scopestack_max;
329	PL_savestack = c->savestack;	298	PL_savestack = c->savestack;
330	PL_savestack_ix = c->savestack_ix;	299	PL_savestack_ix = c->savestack_ix;
331	PL_savestack_max = c->savestack_max;	300	PL_savestack_max = c->savestack_max;
		301	#if PERL_VERSION < 9
332	PL_retstack = c->retstack;	302	PL_retstack = c->retstack;
333	PL_retstack_ix = c->retstack_ix;	303	PL_retstack_ix = c->retstack_ix;
334	PL_retstack_max = c->retstack_max;	304	PL_retstack_max = c->retstack_max;
		305	#endif
		306	PL_curpm = c->curpm;
335	PL_curcop = c->curcop;	307	PL_curcop = c->curcop;
336	PL_top_env = c->top_env;	308	PL_top_env = c->top_env;
337		309
338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
348	{	320	{
349	AV padlist = (AV )POPs;	321	AV padlist = (AV )POPs;
350		322
351	if (padlist)	323	if (padlist)
352	{	324	{
353	put_padlist (cv); /* mark this padlist as available */	325	put_padlist (aTHX_ cv); /* mark this padlist as available */
354	CvPADLIST(cv) = padlist;	326	CvPADLIST(cv) = padlist;
355	#ifdef USE_THREADS
356	/CvOWNER(cv) = (struct perl_thread )POPs;*/
357	#endif
358	}	327	}
359		328
360	++CvDEPTH(cv);	329	++CvDEPTH(cv);
361	}	330	}
362		331
…		…
389	if (CxTYPE(cx) == CXt_SUB)	358	if (CxTYPE(cx) == CXt_SUB)
390	{	359	{
391	CV *cv = cx->blk_sub.cv;	360	CV *cv = cx->blk_sub.cv;
392	if (CvDEPTH(cv))	361	if (CvDEPTH(cv))
393	{	362	{
394	#ifdef USE_THREADS
395	/XPUSHs ((SV )CvOWNER(cv));*/
396	/CvOWNER(cv) = 0;/
397	/error must unlock this cv etc.. etc.../
398	#endif
399	EXTEND (SP, CvDEPTH(cv)*2);	363	EXTEND (SP, CvDEPTH(cv)*2);
400		364
401	while (--CvDEPTH(cv))	365	while (--CvDEPTH(cv))
402	{	366	{
403	/* this tells the restore code to increment CvDEPTH */	367	/* this tells the restore code to increment CvDEPTH */
…		…
406	}	370	}
407		371
408	PUSHs ((SV *)CvPADLIST(cv));	372	PUSHs ((SV *)CvPADLIST(cv));
409	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
410		374
411	get_padlist (cv); /* this is a monster */	375	get_padlist (aTHX_ cv);
412	}	376	}
413	}	377	}
414	#ifdef CXt_FORMAT	378	#ifdef CXt_FORMAT
415	else if (CxTYPE(cx) == CXt_FORMAT)	379	else if (CxTYPE(cx) == CXt_FORMAT)
416	{	380	{
…		…
444	c->mainstack = PL_mainstack;	408	c->mainstack = PL_mainstack;
445	c->stack_sp = PL_stack_sp;	409	c->stack_sp = PL_stack_sp;
446	c->op = PL_op;	410	c->op = PL_op;
447	c->curpad = PL_curpad;	411	c->curpad = PL_curpad;
448	c->comppad = PL_comppad;	412	c->comppad = PL_comppad;
		413	c->compcv = PL_compcv;
449	c->stack_base = PL_stack_base;	414	c->stack_base = PL_stack_base;
450	c->stack_max = PL_stack_max;	415	c->stack_max = PL_stack_max;
451	c->tmps_stack = PL_tmps_stack;	416	c->tmps_stack = PL_tmps_stack;
452	c->tmps_floor = PL_tmps_floor;	417	c->tmps_floor = PL_tmps_floor;
453	c->tmps_ix = PL_tmps_ix;	418	c->tmps_ix = PL_tmps_ix;
…		…
459	c->scopestack_ix = PL_scopestack_ix;	424	c->scopestack_ix = PL_scopestack_ix;
460	c->scopestack_max = PL_scopestack_max;	425	c->scopestack_max = PL_scopestack_max;
461	c->savestack = PL_savestack;	426	c->savestack = PL_savestack;
462	c->savestack_ix = PL_savestack_ix;	427	c->savestack_ix = PL_savestack_ix;
463	c->savestack_max = PL_savestack_max;	428	c->savestack_max = PL_savestack_max;
		429	#if PERL_VERSION < 9
464	c->retstack = PL_retstack;	430	c->retstack = PL_retstack;
465	c->retstack_ix = PL_retstack_ix;	431	c->retstack_ix = PL_retstack_ix;
466	c->retstack_max = PL_retstack_max;	432	c->retstack_max = PL_retstack_max;
		433	#endif
		434	c->curpm = PL_curpm;
467	c->curcop = PL_curcop;	435	c->curcop = PL_curcop;
468	c->top_env = PL_top_env;	436	c->top_env = PL_top_env;
469	}	437	}
470		438
471	/*	439	/*
472	* allocate various perl stacks. This is an exact copy	440	* allocate various perl stacks. This is an exact copy
473	* of perl.c:init_stacks, except that it uses less memory	441	* of perl.c:init_stacks, except that it uses less memory
474	* on the assumption that coroutines do not usually need	442	* on the (sometimes correct) assumption that coroutines do
475	* a lot of stackspace.	443	* not usually need a lot of stackspace.
476	*/	444	*/
477	STATIC void	445	static void
478	coro_init_stacks (pTHX)	446	coro_init_stacks (pTHX)
479	{	447	{
		448	LOCK;
		449
480	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	450	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
481	PL_curstackinfo->si_type = PERLSI_MAIN;	451	PL_curstackinfo->si_type = PERLSI_MAIN;
482	PL_curstack = PL_curstackinfo->si_stack;	452	PL_curstack = PL_curstackinfo->si_stack;
483	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	453	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
484		454
…		…
505		475
506	New(54,PL_savestack,96,ANY);	476	New(54,PL_savestack,96,ANY);
507	PL_savestack_ix = 0;	477	PL_savestack_ix = 0;
508	PL_savestack_max = 96;	478	PL_savestack_max = 96;
509		479
		480	#if PERL_VERSION < 9
510	New(54,PL_retstack,8,OP*);	481	New(54,PL_retstack,8,OP*);
511	PL_retstack_ix = 0;	482	PL_retstack_ix = 0;
512	PL_retstack_max = 8;	483	PL_retstack_max = 8;
		484	#endif
		485
		486	UNLOCK;
513	}	487	}
514		488
515	/*	489	/*
516	* destroy the stacks, the callchain etc...	490	* destroy the stacks, the callchain etc...
517	*/	491	*/
518	STATIC void	492	static void
519	destroy_stacks(pTHX)	493	destroy_stacks(pTHX)
520	{	494	{
521	if (!IN_DESTRUCT)	495	if (!IN_DESTRUCT)
522	{	496	{
523	/* is this ugly, I ask? */	497	/* is this ugly, I ask? */
524	while (PL_scopestack_ix)	498	LEAVE_SCOPE (0);
525	LEAVE;
526		499
527	/* sure it is, but more important: is it correct?? :/ */	500	/* sure it is, but more important: is it correct?? :/ */
528	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
529	FREETMPS;	501	FREETMPS;
		502
		503	/POPSTACK_TO (PL_mainstack);//D//use/
530	}	504	}
531		505
532	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
533	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
534		508
535	while (PL_curstackinfo)	509	while (PL_curstackinfo)
536	{	510	{
537	PERL_SI *p = PL_curstackinfo->si_prev;	511	PERL_SI *p = PL_curstackinfo->si_prev;
538		512
539	{	513	{ /D//remove/
540	dSP;	514	dSP;
541	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
542	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
543	}	517	}
544		518
545	if (!IN_DESTRUCT)	519	if (!IN_DESTRUCT)
546	{	520	{
547	dounwind(-1);	521	dounwind (-1);/D//remove/
548	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec (PL_curstackinfo->si_stack);
549	}	523	}
550		524
551	Safefree(PL_curstackinfo->si_cxstack);	525	Safefree (PL_curstackinfo->si_cxstack);
552	Safefree(PL_curstackinfo);	526	Safefree (PL_curstackinfo);
553	PL_curstackinfo = p;	527	PL_curstackinfo = p;
554	}	528	}
555		529
556	Safefree(PL_tmps_stack);	530	Safefree (PL_tmps_stack);
557	Safefree(PL_markstack);	531	Safefree (PL_markstack);
558	Safefree(PL_scopestack);	532	Safefree (PL_scopestack);
559	Safefree(PL_savestack);	533	Safefree (PL_savestack);
		534	#if PERL_VERSION < 9
560	Safefree(PL_retstack);	535	Safefree (PL_retstack);
		536	#endif
561	}	537	}
562		538
563	static void	539	static void
564	allocate_stack (Coro__State ctx, int alloc)	540	allocate_stack (Coro__State ctx, int alloc)
565	{	541	{
…		…
568	New (0, stack, 1, coro_stack);	544	New (0, stack, 1, coro_stack);
569		545
570	stack->refcnt = 1;	546	stack->refcnt = 1;
571	stack->usecnt = 1;	547	stack->usecnt = 1;
572	stack->gencnt = ctx->gencnt = 0;	548	stack->gencnt = ctx->gencnt = 0;
		549
573	if (alloc)	550	if (alloc)
574	{	551	{
575	#if HAVE_MMAP	552	#if HAVE_MMAP
576	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	553	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
577	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	554	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
578	if (stack->sptr == (void *)-1)	555	if (stack->sptr != (void *)-1)
579	#endif
580	{	556	{
581	/FIXME//D//* reasonable stack size! */	557	# if STACKGUARD
		558	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		559	# endif
		560	}
		561	else
		562	#endif
		563	{
582	stack->ssize = -4096 * sizeof (long);	564	stack->ssize = - (STACKSIZE * (long)sizeof (long));
583	New (0, stack->sptr, 4096, long);	565	New (0, stack->sptr, STACKSIZE, long);
584	}	566	}
585	}	567	}
586	else	568	else
587	stack->sptr = 0;	569	stack->sptr = 0;
588		570
…		…
618	setup_coro (void *arg)	600	setup_coro (void *arg)
619	{	601	{
620	/*	602	/*
621	* emulate part of the perl startup here.	603	* emulate part of the perl startup here.
622	*/	604	*/
		605	dTHX;
623	dSP;	606	dSP;
624	Coro__State ctx = (Coro__State)arg;	607	Coro__State ctx = (Coro__State)arg;
625	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	608	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
626		609
627	coro_init_stacks (aTHX);	610	coro_init_stacks (aTHX);
628	/PL_curcop = 0;/	611	/PL_curcop = 0;/
629	/PL_in_eval = PL_in_eval;/ /* inherit */	612	/PL_in_eval = PL_in_eval;/ /* inherit */
630	SvREFCNT_dec (GvAV (PL_defgv));	613	SvREFCNT_dec (GvAV (PL_defgv));
…		…
647	}	630	}
648	else	631	else
649	{	632	{
650	UNOP myop;	633	UNOP myop;
651		634
652	PL_op = (OP *)&myop;
653
654	Zero(&myop, 1, UNOP);	635	Zero(&myop, 1, UNOP);
655	myop.op_next = Nullop;	636	myop.op_next = Nullop;
656	myop.op_flags = OPf_WANT_VOID;	637	myop.op_flags = OPf_WANT_VOID;
		638
		639	PL_op = (OP *)&myop;
657		640
658	PUSHMARK(SP);	641	PUSHMARK(SP);
659	XPUSHs (sub_init);	642	XPUSHs (sub_init);
660	/*	643	/*
661	* the next line is slightly wrong, as PL_op->op_next	644	* the next line is slightly wrong, as PL_op->op_next
…		…
676	continue_coro (void *arg)	659	continue_coro (void *arg)
677	{	660	{
678	/*	661	/*
679	* this is a _very_ stripped down perl interpreter ;)	662	* this is a _very_ stripped down perl interpreter ;)
680	*/	663	*/
		664	dTHX;
681	Coro__State ctx = (Coro__State)arg;	665	Coro__State ctx = (Coro__State)arg;
682	JMPENV coro_start_env;
683		666
684	PL_top_env = &ctx->start_env;	667	PL_top_env = &PL_start_env;
685		668
686	ctx->cursp = 0;	669	ctx->cursp = 0;
687	PL_op = PL_op->op_next;	670	PL_op = PL_op->op_next;
688	CALLRUNOPS(aTHX);	671	CALLRUNOPS(aTHX);
689		672
690	abort ();	673	abort ();
691	}	674	}
692		675
693	STATIC void	676	/* never call directly, always through the coro_state_transfer global variable */
		677	static void
694	transfer(pTHX_ struct coro prev, struct coro next, int flags)	678	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
695	{	679	{
696	dSTACKLEVEL;	680	dSTACKLEVEL;
697	static struct coro *xnext;
698		681
699	if (prev != next)	682	if (prev != next)
700	{	683	{
701	xnext = next;	684	/* has this coro been created yet? */
702
703	if (next->mainstack)	685	if (next->mainstack)
704	{	686	{
		687	LOCK;
705	SAVE (prev, flags);	688	SAVE (prev, flags);
706	LOAD (next);	689	LOAD (next);
		690	UNLOCK;
707		691
708	/* mark this state as in-use */	692	/* mark this state as in-use */
709	next->mainstack = 0;	693	next->mainstack = 0;
710	next->tmps_ix = -2;	694	next->tmps_ix = -2;
711		695
…		…
730	continue_coro, (void *)next,	714	continue_coro, (void *)next,
731	next->stack->sptr, labs (next->stack->ssize));	715	next->stack->sptr, labs (next->stack->ssize));
732	}	716	}
733		717
734	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	718	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		719	prev->cursp = stacklevel;
735	/* don't add any code here */	720	/* don't add any code here */
736	}	721	}
737		722	else
		723	next->cursp = stacklevel;
738	}	724	}
739	else if (next->tmps_ix == -2)	725	else if (next->tmps_ix == -2)
740	croak ("tried to transfer to running coroutine");	726	croak ("tried to transfer to running coroutine");
741	else	727	else
742	{	728	{
		729	LOCK;
743	SAVE (prev, -1); /* first get rid of the old state */	730	SAVE (prev, -1); /* first get rid of the old state */
		731	UNLOCK;
744		732
		733	/* create the coroutine for the first time */
745	if (flags & TRANSFER_SAVE_CCTXT)	734	if (flags & TRANSFER_SAVE_CCTXT)
746	{	735	{
747	if (!prev->stack)	736	if (!prev->stack)
748	allocate_stack (prev, 0);	737	allocate_stack (prev, 0);
749		738
		739	/* the new coroutine starts with start_env again */
		740	PL_top_env = &PL_start_env;
		741
750	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	742	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
751	{	743	{
752	PL_top_env = &next->start_env;
753
754	setup_coro (next);	744	setup_coro (next);
		745	next->cursp = stacklevel;
755		746
756	prev->stack->refcnt++;	747	prev->stack->refcnt++;
757	prev->stack->usecnt++;	748	prev->stack->usecnt++;
758	next->stack = prev->stack;	749	next->stack = prev->stack;
759	next->gencnt = prev->gencnt;	750	next->gencnt = prev->gencnt;
…		…
764	allocate_stack (next, 1);	755	allocate_stack (next, 1);
765	coro_create (&(next->stack->cctx),	756	coro_create (&(next->stack->cctx),
766	setup_coro, (void *)next,	757	setup_coro, (void *)next,
767	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
768	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	759	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		760	prev->cursp = stacklevel;
769	/* don't add any code here */	761	/* don't add any code here */
770	}	762	}
771	}	763	}
772	else	764	else
		765	{
773	setup_coro (next);	766	setup_coro (next);
		767	next->cursp = stacklevel;
		768	}
774	}	769	}
775
776	/*
777	* xnext is now either prev or next, depending on wether
778	* we switched the c stack or not. that's why I use a global
779	* variable, that should become thread-specific at one point.
780	*/
781	xnext->cursp = stacklevel;
782	}	770	}
783		771
		772	LOCK;
784	if (coro_mortal)	773	if (coro_mortal)
785	{	774	{
786	SvREFCNT_dec (coro_mortal);	775	SvREFCNT_dec (coro_mortal);
787	coro_mortal = 0;	776	coro_mortal = 0;
788	}	777	}
		778	UNLOCK;
789	}	779	}
		780
		781	/* use this function pointer to call the above function */
		782	/* this is done to increase chances of the compiler not inlining the call */
		783	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
790		784
791	#define SV_CORO(sv,func) \	785	#define SV_CORO(sv,func) \
792	do { \	786	do { \
793	if (SvROK (sv)) \	787	if (SvROK (sv)) \
794	sv = SvRV (sv); \	788	sv = SvRV (sv); \
795	\	789	\
796	if (SvTYPE(sv) == SVt_PVHV) \	790	if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \
797	{ \	791	{ \
798	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	792	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
799	\	793	\
800	if (!he) \	794	if (!he) \
801	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	795	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
802	\	796	\
803	(sv) = SvRV (HeVAL(he)); \	797	(sv) = SvRV (HeVAL(he)); \
804	} \	798	} \
805	\	799	\
806	/* must also be changed inside Coro::Cont::yield */ \	800	/* must also be changed inside Coro::Cont::yield */ \
807	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	801	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
808	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	802	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
809	\	803	\
810	} while(0)	804	} while(0)
811		805
812	#define SvSTATE(sv) (struct coro *)SvIV (sv)	806	static void
		807	coro_state_destroy (struct coro *coro)
		808	{
		809	if (coro->refcnt--)
		810	return;
813		811
		812	if (coro->mainstack && coro->mainstack != main_mainstack)
		813	{
		814	struct coro temp;
		815
		816	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
		817	LOAD (aTHX_ coro);
		818
		819	destroy_stacks (aTHX);
		820
		821	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		822
		823	coro->mainstack = 0;
		824	}
		825
		826	deallocate_stack (coro);
		827	SvREFCNT_dec (coro->args);
		828	Safefree (coro);
		829	}
		830
814	static void	831	static int
		832	coro_state_clear (SV sv, MAGIC mg)
		833	{
		834	struct coro coro = (struct coro )mg->mg_ptr;
		835	mg->mg_ptr = 0;
		836
		837	coro_state_destroy (coro);
		838
		839	return 0;
		840	}
		841
		842	static int
		843	coro_state_dup (MAGIC mg, CLONE_PARAMS params)
		844	{
		845	struct coro coro = (struct coro )mg->mg_ptr;
		846
		847	++coro->refcnt;
		848
		849	return 0;
		850	}
		851
		852	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
		853
		854	static struct coro *
		855	SvSTATE (SV *coro)
		856	{
		857	MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro);
		858	assert (mg->mg_type == PERL_MAGIC_ext);
		859	return (struct coro *)mg->mg_ptr;
		860	}
		861
		862	static void
815	api_transfer(pTHX_ SV prev, SV next, int flags)	863	api_transfer (pTHX_ SV prev, SV next, int flags)
816	{	864	{
817	SV_CORO (prev, "Coro::transfer");	865	SV_CORO (prev, "Coro::transfer");
818	SV_CORO (next, "Coro::transfer");	866	SV_CORO (next, "Coro::transfer");
819		867
820	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	868	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
821	}	869	}
822		870
823	/ Coro ******************************************************************/	871	/ Coro ******************************************************************/
824		872
825	#define PRIO_MAX 3	873	#define PRIO_MAX 3
…		…
829	#define PRIO_IDLE -3	877	#define PRIO_IDLE -3
830	#define PRIO_MIN -4	878	#define PRIO_MIN -4
831		879
832	/* for Coro.pm */	880	/* for Coro.pm */
833	static GV coro_current, coro_idle;	881	static GV coro_current, coro_idle;
834	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
835	static int coro_nready;	883	static int coro_nready;
836		884
837	static void	885	static void
838	coro_enq (SV *sv)	886	coro_enq (pTHX_ SV *sv)
839	{	887	{
		888	int prio;
		889
840	if (SvTYPE (sv) == SVt_PVHV)	890	if (SvTYPE (sv) != SVt_PVHV)
841	{
842	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
843	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
844
845	prio = prio > PRIO_MAX ? PRIO_MAX
846	: prio < PRIO_MIN ? PRIO_MIN
847	: prio;
848
849	av_push (coro_ready [prio - PRIO_MIN], sv);
850	coro_nready++;
851
852	return;
853	}
854
855	croak ("Coro::ready tried to enqueue something that is not a coroutine");	891	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		892
		893	{
		894	SV *coro = sv;
		895	SV_CORO (coro, "omg");
		896	prio = SvSTATE (coro)->prio;
		897	}
		898
		899	av_push (coro_ready [prio - PRIO_MIN], sv);
		900	coro_nready++;
856	}	901	}
857		902
858	static SV *	903	static SV *
859	coro_deq (int min_prio)	904	coro_deq (pTHX_ int min_prio)
860	{	905	{
861	int prio = PRIO_MAX - PRIO_MIN;	906	int prio = PRIO_MAX - PRIO_MIN;
862		907
863	min_prio -= PRIO_MIN;	908	min_prio -= PRIO_MIN;
864	if (min_prio < 0)	909	if (min_prio < 0)
865	min_prio = 0;	910	min_prio = 0;
866		911
867	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	912	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
868	if (av_len (coro_ready[prio]) >= 0)	913	if (AvFILLp (coro_ready [prio]) >= 0)
869	{	914	{
870	coro_nready--;	915	coro_nready--;
871	return av_shift (coro_ready[prio]);	916	return av_shift (coro_ready [prio]);
872	}	917	}
873		918
874	return 0;	919	return 0;
875	}	920	}
876		921
877	static void	922	static void
878	api_ready (SV *coro)	923	api_ready (SV *coro)
879	{	924	{
		925	dTHX;
		926
880	if (SvROK (coro))	927	if (SvROK (coro))
881	coro = SvRV (coro);	928	coro = SvRV (coro);
882		929
		930	LOCK;
883	coro_enq (SvREFCNT_inc (coro));	931	coro_enq (aTHX_ SvREFCNT_inc (coro));
		932	UNLOCK;
884	}	933	}
885		934
886	static void	935	static void
887	api_schedule (void)	936	api_schedule (void)
888	{	937	{
		938	dTHX;
		939
889	SV prev, next;	940	SV prev, next;
890		941
		942	LOCK;
		943
891	prev = SvRV (GvSV (coro_current));	944	prev = SvRV (GvSV (coro_current));
892	next = coro_deq (PRIO_MIN);	945	next = coro_deq (aTHX_ PRIO_MIN);
893		946
894	if (!next)	947	if (!next)
895	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	948	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
896		949
897	/* free this only after the transfer */	950	/* free this only after the transfer */
…		…
900		953
901	SvRV (GvSV (coro_current)) = next;	954	SvRV (GvSV (coro_current)) = next;
902		955
903	SV_CORO (next, "Coro::schedule");	956	SV_CORO (next, "Coro::schedule");
904		957
		958	UNLOCK;
		959
905	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
906	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
907	}	962	}
908		963
909	static void	964	static void
910	api_cede (void)	965	api_cede (void)
911	{	966	{
		967	dTHX;
		968
		969	LOCK;
912	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		971	UNLOCK;
913		972
914	api_schedule ();	973	api_schedule ();
915	}	974	}
916		975
917	MODULE = Coro::State PACKAGE = Coro::State	976	MODULE = Coro::State PACKAGE = Coro::State
918		977
919	PROTOTYPES: ENABLE	978	PROTOTYPES: DISABLE
920		979
921	BOOT:	980	BOOT:
922	{ /* {} necessary for stoopid perl-5.6.x */	981	{ /* {} necessary for stoopid perl-5.6.x */
		982	#ifdef USE_ITHREADS
		983	MUTEX_INIT (&coro_mutex);
		984	#endif
		985	BOOT_PAGESIZE;
		986
923	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	987	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
924	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	988	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
925	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	989	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
926		990
927	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	991	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
928	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	992	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
929	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	993	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
930	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	994	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
931		995
932	if (!padlist_cache)
933	padlist_cache = newHV ();
934
935	main_mainstack = PL_mainstack;	996	main_mainstack = PL_mainstack;
936		997
937	coroapi.ver = CORO_API_VERSION;	998	coroapi.ver = CORO_API_VERSION;
938	coroapi.transfer = api_transfer;	999	coroapi.transfer = api_transfer;
939	}
940		1000
941	Coro::State	1001	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
942	_newprocess(args)	1002	}
943	SV * args	1003
944	PROTOTYPE: $	1004	SV *
		1005	new (char *klass, ...)
945	CODE:	1006	CODE:
946	Coro__State coro;	1007	{
		1008	struct coro *coro;
		1009	HV *hv;
		1010	int i;
947		1011
948	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
949	croak ("Coro::State::_newprocess expects an arrayref");
950
951	Newz (0, coro, 1, struct coro);	1012	Newz (0, coro, 1, struct coro);
		1013	coro->args = newAV ();
952		1014
953	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1015	for (i = 1; i < items; i++)
		1016	av_push (coro->args, newSVsv (ST (i)));
		1017
954	coro->mainstack = 0; /* actual work is done inside transfer */	1018	/coro->mainstack = 0; //actual work is done inside transfer /
955	coro->stack = 0;	1019	/coro->stack = 0;/
956		1020
957	/* same as JMPENV_BOOTSTRAP */	1021	hv = newHV ();
958	/* we might be able to recycle start_env, but safe is safe */	1022	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
959	//Zero(&coro->start_env, 1, JMPENV);	1023	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
960	coro->start_env.je_ret = -1;	1024	}
961	coro->start_env.je_mustcatch = TRUE;
962
963	RETVAL = coro;
964	OUTPUT:	1025	OUTPUT:
965	RETVAL	1026	RETVAL
966		1027
967	void	1028	void
968	transfer(prev, next, flags)	1029	transfer(prev, next, flags)
969	SV *prev	1030	SV *prev
970	SV *next	1031	SV *next
971	int flags	1032	int flags
972	PROTOTYPE: @
973	CODE:	1033	CODE:
974	PUTBACK;	1034	PUTBACK;
975	SV_CORO (next, "Coro::transfer");	1035	SV_CORO (next, "Coro::transfer");
976	SV_CORO (prev, "Coro::transfer");	1036	SV_CORO (prev, "Coro::transfer");
977	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1037	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
978	SPAGAIN;	1038	SPAGAIN;
979		1039
		1040	int
		1041	prio (Coro::State coro, int newprio = 0)
		1042	ALIAS:
		1043	nice = 1
		1044	CODE:
		1045	{
		1046	RETVAL = coro->prio;
		1047
		1048	if (items > 1)
		1049	{
		1050	if (ix)
		1051	newprio += coro->prio;
		1052
		1053	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1054	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1055
		1056	coro->prio = newprio;
		1057	}
		1058	}
		1059
980	void	1060	void
981	DESTROY(coro)	1061	_clone_state_from (SV dst, SV src)
982	Coro::State coro	1062	CODE:
983	CODE:	1063	{
		1064	struct coro *coro_src = SvSTATE (src);
984		1065
985	if (coro->mainstack && coro->mainstack != main_mainstack)	1066	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
986	{
987	struct coro temp;
988		1067
989	PUTBACK;	1068	++coro_src->refcnt;
990	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1069	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
991	LOAD(aTHX_ coro);	1070	}
992	SPAGAIN;
993
994	destroy_stacks (aTHX);
995
996	LOAD((&temp)); /* this will get rid of defsv etc.. */
997	SPAGAIN;
998
999	coro->mainstack = 0;
1000	}
1001
1002	deallocate_stack (coro);
1003	SvREFCNT_dec (coro->args);
1004	Safefree (coro);
1005		1071
1006	void	1072	void
1007	_exit(code)	1073	_exit (code)
1008	int code	1074	int code
1009	PROTOTYPE: $	1075	PROTOTYPE: $
1010	CODE:	1076	CODE:
1011	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
1012	_exit (code);	1077	_exit (code);
1013	#else
1014	signal (SIGTERM, SIG_DFL);
1015	raise (SIGTERM);
1016	exit (code);
1017	#endif
1018		1078
1019	MODULE = Coro::State PACKAGE = Coro::Cont	1079	MODULE = Coro::State PACKAGE = Coro::Cont
1020		1080
1021	# this is slightly dirty (should expose a c-level api)
1022
1023	void	1081	void
1024	yield(...)	1082	yield (...)
1025	PROTOTYPE: @	1083	PROTOTYPE: @
1026	CODE:	1084	CODE:
1027	static SV *returnstk;	1085	SV *yieldstack;
1028	SV *sv;	1086	SV *sv;
1029	AV *defav = GvAV (PL_defgv);	1087	AV *defav = GvAV (PL_defgv);
1030	struct coro prev, next;	1088	struct coro prev, next;
1031		1089
1032	if (!returnstk)	1090	yieldstack = *hv_fetch (
1033	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));	1091	(HV *)SvRV (GvSV (coro_current)),
		1092	"yieldstack", sizeof ("yieldstack") - 1,
		1093	0
		1094	);
1034		1095
1035	/* set up @_ -- ugly */	1096	/* set up @_ -- ugly */
1036	av_clear (defav);	1097	av_clear (defav);
1037	av_fill (defav, items - 1);	1098	av_fill (defav, items - 1);
1038	while (items--)	1099	while (items--)
1039	av_store (defav, items, SvREFCNT_inc (ST(items)));	1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1040		1101
1041	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1042	sv = av_pop ((AV *)SvRV (returnstk));	1102	sv = av_pop ((AV *)SvRV (yieldstack));
1043	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1103	prev = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 0, 0)));
1044	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1104	next = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 1, 0)));
1045	SvREFCNT_dec (sv);	1105	SvREFCNT_dec (sv);
1046		1106
1047	transfer(aTHX_ prev, next, 0);	1107	coro_state_transfer (aTHX_ prev, next, 0);
1048		1108
1049	MODULE = Coro::State PACKAGE = Coro	1109	MODULE = Coro::State PACKAGE = Coro
1050
1051	# this is slightly dirty (should expose a c-level api)
1052		1110
1053	BOOT:	1111	BOOT:
1054	{	1112	{
1055	int i;	1113	int i;
1056	HV *stash = gv_stashpv ("Coro", TRUE);	1114	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1076	coroapi.ready = api_ready;	1134	coroapi.ready = api_ready;
1077	coroapi.nready = &coro_nready;	1135	coroapi.nready = &coro_nready;
1078	coroapi.current = coro_current;	1136	coroapi.current = coro_current;
1079		1137
1080	GCoroAPI = &coroapi;	1138	GCoroAPI = &coroapi;
1081	sv_setiv(sv, (IV)&coroapi);	1139	sv_setiv (sv, (IV)&coroapi);
1082	SvREADONLY_on(sv);	1140	SvREADONLY_on (sv);
1083	}	1141	}
1084	}	1142	}
1085		1143
1086	#if !PERL_MICRO	1144	#if !PERL_MICRO
1087		1145
1088	void	1146	void
1089	ready(self)	1147	ready (self)
1090	SV * self	1148	SV * self
1091	PROTOTYPE: $	1149	PROTOTYPE: $
1092	CODE:	1150	CODE:
1093	api_ready (self);	1151	api_ready (self);
1094		1152
1095	#endif	1153	#endif
1096		1154
1097	int	1155	int
1098	nready(...)	1156	nready (...)
1099	PROTOTYPE:	1157	PROTOTYPE:
1100	CODE:	1158	CODE:
1101	RETVAL = coro_nready;	1159	RETVAL = coro_nready;
1102	OUTPUT:	1160	OUTPUT:
1103	RETVAL	1161	RETVAL
1104		1162
1105	void	1163	void
1106	schedule(...)	1164	schedule (...)
1107	PROTOTYPE:	1165	PROTOTYPE:
1108	CODE:	1166	CODE:
1109	api_schedule ();	1167	api_schedule ();
1110		1168
1111	void	1169	void
1112	cede(...)	1170	cede (...)
1113	PROTOTYPE:	1171	PROTOTYPE:
1114	CODE:	1172	CODE:
1115	api_cede ();	1173	api_cede ();
1116		1174
		1175	# and these are hacks
		1176	SV *
		1177	_aio_get_state ()
		1178	CODE:
		1179	{
		1180	struct {
		1181	int errorno;
		1182	int laststype;
		1183	int laststatval;
		1184	Stat_t statcache;
		1185	} data;
		1186
		1187	data.errorno = errno;
		1188	data.laststype = PL_laststype;
		1189	data.laststatval = PL_laststatval;
		1190	data.statcache = PL_statcache;
		1191
		1192	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1193	}
		1194	OUTPUT:
		1195	RETVAL
		1196
		1197	void
		1198	_aio_set_state (char *data_)
		1199	PROTOTYPE: $
		1200	CODE:
		1201	{
		1202	struct {
		1203	int errorno;
		1204	int laststype;
		1205	int laststatval;
		1206	Stat_t statcache;
		1207	} data = (void )data_;
		1208
		1209	errno = data->errorno;
		1210	PL_laststype = data->laststype;
		1211	PL_laststatval = data->laststatval;
		1212	PL_statcache = data->statcache;
		1213	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.50 by pcg, Sun Nov 30 16:59:15 2003 UTC vs. Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.50 by pcg, Sun Nov 30 16:59:15 2003 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC