[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.126 by root, Thu Sep 25 07:56:07 2008 UTC vs.
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
		16	#include <sys/statvfs.h>
14	#include <limits.h>	17	#include <limits.h>
15	#include <fcntl.h>	18	#include <fcntl.h>
16	#include <sched.h>	19	#include <sched.h>
		20
		21	#if _POSIX_MEMLOCK \|\| _POSIX_MAPPED_FILES
		22	# include <sys/mman.h>
		23	#endif
17		24
18	/* perl namespace pollution */	25	/* perl namespace pollution */
19	#undef VERSION	26	#undef VERSION
20		27
21	#ifdef _WIN32	28	#ifdef _WIN32
…		…
75		82
76	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
77		84
78	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
80	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
81	#else	90	#else
		91	# define VAL64 NV
82	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
83	#endif	94	#endif
84		95
85	static HV *stash;	96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
		100	#else
		101	# define expect(expr,value) (expr)
		102	#endif
		103
		104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
86	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
		110	typedef int aio_rfd; /* read file desriptor */
		111	typedef int aio_wfd; /* write file descriptor */
87		112
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV aio_stash, aio_req_stash, *aio_grp_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		114
91	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
92	SV *callback; \	116	SV *callback; \
93	SV sv1, sv2; \	117	SV sv1, sv2; \
94	STRLEN stroffset; \	118	STRLEN stroffset; \
…		…
96		120
97	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
98		122
99	#include "libeio/eio.h"	123	#include "libeio/eio.h"
100		124
		125	#ifndef POSIX_FADV_NORMAL
		126	# define POSIX_FADV_NORMAL 0
		127	# define NO_FADVISE 1
		128	#endif
		129	#ifndef POSIX_FADV_SEQUENTIAL
		130	# define POSIX_FADV_SEQUENTIAL 0
		131	#endif
		132	#ifndef POSIX_FADV_RANDOM
		133	# define POSIX_FADV_RANDOM 0
		134	#endif
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138	#ifndef POSIX_FADV_WILLNEED
		139	# define POSIX_FADV_WILLNEED 0
		140	#endif
		141	#ifndef POSIX_FADV_DONTNEED
		142	# define POSIX_FADV_DONTNEED 0
		143	#endif
		144
		145	#ifndef POSIX_MADV_NORMAL
		146	# define POSIX_MADV_NORMAL 0
		147	# define NO_MADVISE 1
		148	#endif
		149	#ifndef POSIX_MADV_SEQUENTIAL
		150	# define POSIX_MADV_SEQUENTIAL 0
		151	#endif
		152	#ifndef POSIX_MADV_RANDOM
		153	# define POSIX_MADV_RANDOM 0
		154	#endif
		155	#ifndef POSIX_MADV_WILLNEED
		156	# define POSIX_MADV_WILLNEED 0
		157	#endif
		158	#ifndef POSIX_MADV_DONTNEED
		159	# define POSIX_MADV_DONTNEED 0
		160	#endif
		161
		162	#ifndef ST_NODEV
		163	# define ST_NODEV 0
		164	#endif
		165	#ifndef ST_NOEXEC
		166	# define ST_NOEXEC 0
		167	#endif
		168	#ifndef ST_SYNCHRONOUS
		169	# define ST_SYNCHRONOUS 0
		170	#endif
		171	#ifndef ST_MANDLOCK
		172	# define ST_MANDLOCK 0
		173	#endif
		174	#ifndef ST_WRITE
		175	# define ST_WRITE 0
		176	#endif
		177	#ifndef ST_APPEND
		178	# define ST_APPEND 0
		179	#endif
		180	#ifndef ST_IMMUTABLE
		181	# define ST_IMMUTABLE 0
		182	#endif
		183	#ifndef ST_NOATIME
		184	# define ST_NOATIME 0
		185	#endif
		186	#ifndef ST_NODIRATIME
		187	# define ST_NODIRATIME 0
		188	#endif
		189	#ifndef ST_RELATIME
		190	# define ST_RELATIME 0
		191	#endif
		192
		193	#ifndef MCL_CURRENT
		194	# define MCL_CURRENT 0
		195	#endif
		196	#ifndef MCL_FUTURE
		197	# define MCL_FUTURE 0
		198	#endif
		199
		200	#ifndef MAP_ANONYMOUS
		201	# ifdef MAP_ANON
		202	# define MAP_ANONYMOUS MAP_ANON
		203	# else
		204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		205	# endif
		206	#endif
		207	#ifndef MAP_HUGETLB
		208	# define MAP_HUGETLB 0
		209	#endif
		210	#ifndef MAP_LOCKED
		211	# define MAP_LOCKED 0
		212	#endif
		213	#ifndef MAP_NORESERVE
		214	# define MAP_NORESERVE 0
		215	#endif
		216	#ifndef MAP_POPULATE
		217	# define MAP_POPULATE 0
		218	#endif
		219	#ifndef MAP_NONBLOCK
		220	# define MAP_NONBLOCK 0
		221	#endif
		222
		223	#ifndef PAGESIZE
		224	# define PAGESIZE sysconf (_SC_PAGESIZE)
		225	#endif
		226
101	static int req_invoke (eio_req *req);	227	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	228	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	229	static void req_destroy (eio_req *grp);
106	#define EIO_DESTROY(req) req_destroy (req)	230	#define EIO_DESTROY(req) req_destroy (req)
107		231
108	enum {	232	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	233	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
116		240
117	static SV *on_next_submit;	241	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	242	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	243	static int max_outstanding;
120		244
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	245	static s_epipe respipe;
122		246
123	static void req_destroy (aio_req req);	247	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	248	static void req_cancel (aio_req req);
125		249
126	static void want_poll (void)	250	static void want_poll (void)
127	{	251	{
128	/* write a dummy byte to the pipe so fh becomes ready */	252	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	253	s_epipe_signal (&respipe);
130	}	254	}
131		255
132	static void done_poll (void)	256	static void done_poll (void)
133	{	257	{
134	/* read any signals sent by the worker threads */	258	/* read any signals sent by the worker threads */
135	char buf [4];	259	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	260	}
139		261
140	/* must be called at most once */	262	/* must be called at most once */
141	static SV req_sv (aio_req req, const char klass)	263	static SV req_sv (aio_req req, HV stash)
142	{	264	{
143	if (!req->self)	265	if (!req->self)
144	{	266	{
145	req->self = (SV *)newHV ();	267	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	268	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	269	}
148		270
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	271	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	272	}
151		273
152	static aio_req SvAIO_REQ (SV *sv)	274	static aio_req SvAIO_REQ (SV *sv)
153	{	275	{
154	MAGIC *mg;	276	MAGIC *mg;
155		277
156	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	278	if (!SvROK (sv)
		279	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		280	&& SvSTASH (SvRV (sv)) != aio_req_stash
		281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
158		283
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		285
161	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	287	}
…		…
168	dSP;	293	dSP;
169		294
170	ENTER;	295	ENTER;
171	SAVETMPS;	296	SAVETMPS;
172	PUSHMARK (SP);	297	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	298	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	299	PUTBACK;
175	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	300	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
176	SPAGAIN;	301	SPAGAIN;
177	FREETMPS;	302	FREETMPS;
178	LEAVE;	303	LEAVE;
…		…
181		306
182	static void req_submit (eio_req *req)	307	static void req_submit (eio_req *req)
183	{	308	{
184	eio_submit (req);	309	eio_submit (req);
185		310
186	if (on_next_submit)	311	if (expect_false (on_next_submit))
187	{	312	{
188	dSP;	313	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	314	SV *cb = sv_2mortal (on_next_submit);
190		315
191	on_next_submit = 0;	316	on_next_submit = 0;
…		…
196	}	321	}
197	}	322	}
198		323
199	static int req_invoke (eio_req *req)	324	static int req_invoke (eio_req *req)
200	{	325	{
201	dSP;
202
203	if (req->flags & FLAG_SV2_RO_OFF)	326	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	327	SvREADONLY_off (req->sv2);
205		328
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	329	if (!EIO_CANCELLED (req) && req->callback)
207	{	330	{
		331	dSP;
		332	static SV sv_result_cache; / caches the result integer SV */
		333	SV *sv_result;
		334
208	ENTER;	335	ENTER;
209	SAVETMPS;	336	SAVETMPS;
210	PUSHMARK (SP);	337	PUSHMARK (SP);
211	EXTEND (SP, 1);	338	EXTEND (SP, 1);
		339
		340	/* do not recreate the result IV from scratch each time */
		341	if (expect_true (sv_result_cache))
		342	{
		343	sv_result = sv_result_cache; sv_result_cache = 0;
		344	SvIV_set (sv_result, req->result);
		345	}
		346	else
		347	{
		348	sv_result = newSViv (req->result);
		349	SvREADONLY_on (sv_result);
		350	}
212		351
213	switch (req->type)	352	switch (req->type)
214	{	353	{
215	case EIO_READDIR:	354	case EIO_READDIR:
216	{	355	{
217	SV *rv = &PL_sv_undef;	356	SV *rv = &PL_sv_undef;
218		357
219	if (req->result >= 0)	358	if (req->result >= 0)
220	{	359	{
221	int i;	360	int i;
222	char *buf = req->ptr2;	361	char names = (char )req->ptr2;
		362	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
223	AV *av = newAV ();	363	AV *av = newAV ();
224		364
225	av_extend (av, req->result - 1);	365	av_extend (av, req->result - 1);
226		366
227	for (i = 0; i < req->result; ++i)	367	for (i = 0; i < req->result; ++i)
228	{	368	{
229	SV *sv = newSVpv (buf, 0);	369	if (req->int1 & EIO_READDIR_DENTS)
		370	{
		371	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		372
		373	if (req->int1 & EIO_READDIR_CUSTOM2)
		374	{
		375	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		376	AV *avent = newAV ();
		377
		378	av_extend (avent, 2);
		379
		380	if (!sv_type [ent->type])
		381	{
		382	sv_type [ent->type] = newSViv (ent->type);
		383	SvREADONLY_on (sv_type [ent->type]);
		384	}
		385
		386	av_store (avent, 0, namesv);
		387	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		388	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		389
		390	av_store (av, i, newRV_noinc ((SV *)avent));
		391	}
		392	else
231	av_store (av, i, sv);	393	av_store (av, i, namesv);
		394
		395	++ent;
		396	}
		397	else
		398	{
		399	SV *name = newSVpv (names, 0);
		400	av_store (av, i, name);
232	buf += SvCUR (sv) + 1;	401	names += SvCUR (name) + 1;
		402	}
233	}	403	}
234		404
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	405	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	406	}
237		407
238	PUSHs (rv);	408	PUSHs (rv);
		409
		410	if (req->int1 & EIO_READDIR_CUSTOM1)
		411	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
239	}	412	}
240	break;	413	break;
241		414
242	case EIO_OPEN:	415	case EIO_OPEN:
243	{	416	{
…		…
249	GV gv = (GV )sv_newmortal ();	422	GV gv = (GV )sv_newmortal ();
250	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	423	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
251	char sym [64];	424	char sym [64];
252	int symlen;	425	int symlen;
253		426
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	427	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
255	gv_init (gv, stash, sym, symlen, 0);	428	gv_init (gv, aio_stash, sym, symlen, 0);
256		429
257	symlen = snprintf (	430	symlen = snprintf (
258	sym,	431	sym,
259	sizeof (sym),	432	sizeof (sym),
260	"%s&=%d",	433	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	434	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result	435	(int)req->result
263	);	436	);
264		437
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	438	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
266	fh = (SV *)gv;	439	fh = (SV *)gv;
267	}	440	}
268		441
269	PUSHs (fh);	442	PUSHs (fh);
270	}	443	}
		444	break;
		445
		446	case EIO_STATVFS:
		447	case EIO_FSTATVFS:
		448	{
		449	SV *rv = &PL_sv_undef;
		450
		451	if (req->result >= 0)
		452	{
		453	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		454	HV *hv = newHV ();
		455
		456	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		457
		458	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		459	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		460	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		461	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		462	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		463	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		464	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		465	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		466	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		467	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		468	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		469	}
		470
		471	PUSHs (rv);
		472	}
		473
271	break;	474	break;
272		475
273	case EIO_GROUP:	476	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	477	req->int1 = 2; /* mark group as finished */
275		478
…		…
297	case EIO_LSTAT:	500	case EIO_LSTAT:
298	case EIO_FSTAT:	501	case EIO_FSTAT:
299	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	502	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
300	PL_laststatval = req->result;	503	PL_laststatval = req->result;
301	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	504	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	505	PUSHs (sv_result);
303	break;	506	break;
304		507
305	case EIO_READ:	508	case EIO_READ:
		509	{
306	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	510	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
307	*SvEND (req->sv2) = 0;	511	*SvEND (req->sv2) = 0;
308	PUSHs (sv_2mortal (newSViv (req->result)));	512	SvPOK_only (req->sv2);
		513	SvSETMAGIC (req->sv2);
		514	PUSHs (sv_result);
		515	}
309	break;	516	break;
310		517
311	case EIO_DUP2:	518	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
312	if (req->result > 0)	519	if (req->result > 0)
313	req->result = 0;	520	SvIV_set (sv_result, 0);
314	/* FALLTHROUGH */	521	/* FALLTHROUGH */
315		522
316	default:	523	default:
317	PUSHs (sv_2mortal (newSViv (req->result)));	524	PUSHs (sv_result);
318	break;	525	break;
319	}	526	}
320		527
321	errno = req->errorno;	528	errno = req->errorno;
322		529
323	PUTBACK;	530	PUTBACK;
324	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	531	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
325	SPAGAIN;	532	SPAGAIN;
		533
		534	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		535	SvREFCNT_dec (sv_result);
		536	else
		537	sv_result_cache = sv_result;
326		538
327	FREETMPS;	539	FREETMPS;
328	LEAVE;	540	LEAVE;
329		541
330	PUTBACK;	542	PUTBACK;
…		…
359	grp->sv2 = 0;	571	grp->sv2 = 0;
360		572
361	eio_grp_cancel (grp);	573	eio_grp_cancel (grp);
362	}	574	}
363		575
364	#ifdef USE_SOCKETS_AS_HANDLES
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))
366	#else
367	# define TO_SOCKET(x) (x)
368	#endif
369
370	static void	576	static void
371	create_respipe (void)	577	create_respipe (void)
372	{	578	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))	579	if (s_epipe_renew (&respipe))
382	#endif
383	croak ("unable to initialize result pipe");	580	croak ("IO::AIO: unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}	581	}
407		582
408	static void poll_wait (void)	583	static void poll_wait (void)
409	{	584	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	585	while (eio_nreqs ())
413	{	586	{
414	int size;	587	int size;
415		588
416	X_LOCK (reslock);	589	X_LOCK (reslock);
…		…
420	if (size)	593	if (size)
421	return;	594	return;
422		595
423	etp_maybe_start_thread ();	596	etp_maybe_start_thread ();
424		597
425	FD_ZERO (&rfd);	598	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	599	}
430	}	600	}
431		601
432	static int poll_cb (void)	602	static int poll_cb (void)
433	{	603	{
…		…
448	static void atfork_child (void)	618	static void atfork_child (void)
449	{	619	{
450	create_respipe ();	620	create_respipe ();
451	}	621	}
452		622
		623	/*****************************************************************************/
		624
		625	#if !_POSIX_MAPPED_FILES
		626	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		627	# define munmap(addr,length) (errno = ENOSYS, -1)
		628	#endif
		629
		630	#define MMAP_MAGIC PERL_MAGIC_ext
		631
		632	static int
		633	mmap_free (pTHX_ SV sv, MAGIC mg)
		634	{
		635	int old_errno = errno;
		636	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		637	errno = old_errno;
		638
		639	mg->mg_obj = 0; /* just in case */
		640
		641	SvREADONLY_off (sv);
		642
		643	if (SvPVX (sv) != mg->mg_ptr)
		644	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		645
		646	SvCUR_set (sv, 0);
		647	SvPVX (sv) = 0;
		648	SvOK_off (sv);
		649
		650	return 0;
		651	}
		652
		653	static MGVTBL mmap_vtbl = {
		654	0, 0, 0, 0, mmap_free
		655	};
		656
		657	/*****************************************************************************/
		658
		659	static SV *
		660	get_cb (SV *cb_sv)
		661	{
		662	SvGETMAGIC (cb_sv);
		663	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		664	}
		665
453	#define dREQ \	666	#define dREQ \
		667	SV *cb_cv; \
454	aio_req req; \	668	aio_req req; \
455	int req_pri = next_pri; \	669	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \	670	next_pri = EIO_PRI_DEFAULT; \
457	\	671	\
458	if (SvOK (callback) && !SvROK (callback)) \	672	cb_cv = get_cb (callback); \
459	croak ("callback must be undef or of reference type"); \
460	\	673	\
461	Newz (0, req, 1, eio_req); \	674	Newz (0, req, 1, eio_req); \
462	if (!req) \	675	if (!req) \
463	croak ("out of memory during eio_req allocation"); \	676	croak ("out of memory during eio_req allocation"); \
464	\	677	\
465	req->callback = newSVsv (callback); \	678	req->callback = SvREFCNT_inc (cb_cv); \
466	req->pri = req_pri	679	req->pri = req_pri
467		680
468	#define REQ_SEND \	681	#define REQ_SEND \
469	PUTBACK; \	682	PUTBACK; \
470	req_submit (req); \	683	req_submit (req); \
471	SPAGAIN; \	684	SPAGAIN; \
472	\	685	\
473	if (GIMME_V != G_VOID) \	686	if (GIMME_V != G_VOID) \
474	XPUSHs (req_sv (req, AIO_REQ_KLASS));	687	XPUSHs (req_sv (req, aio_req_stash));
475		688
476	MODULE = IO::AIO PACKAGE = IO::AIO	689	MODULE = IO::AIO PACKAGE = IO::AIO
477		690
478	PROTOTYPES: ENABLE	691	PROTOTYPES: ENABLE
479		692
480	BOOT:	693	BOOT:
481	{	694	{
482	stash = gv_stashpv ("IO::AIO", 1);	695	static const struct {
483		696	const char *name;
484	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	697	IV iv;
485	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	698	} *civ, const_iv[] = {
486	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	699	# define const_niv(name, value) { # name, (IV) value },
487	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	700	# define const_iv(name) { # name, (IV) name },
488	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	701	# define const_eio(name) { # name, (IV) EIO_ ## name },
		702	const_iv (EXDEV)
		703	const_iv (ENOSYS)
		704	const_iv (O_RDONLY)
		705	const_iv (O_WRONLY)
		706	const_iv (O_RDWR)
		707	const_iv (O_CREAT)
		708	const_iv (O_TRUNC)
		709	const_iv (O_EXCL)
		710	const_iv (O_APPEND)
489	#ifndef _WIN32	711	#ifndef _WIN32
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	712	const_iv (S_IFIFO)
491	#endif	713	#endif
		714	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		715	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		716	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		717	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		718	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		719	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
492		720
		721	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		722	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		723	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		724	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		725	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		726
		727	const_iv (ST_RDONLY)
		728	const_iv (ST_NOSUID)
		729	const_iv (ST_NODEV)
		730	const_iv (ST_NOEXEC)
		731	const_iv (ST_SYNCHRONOUS)
		732	const_iv (ST_MANDLOCK)
		733	const_iv (ST_WRITE)
		734	const_iv (ST_APPEND)
		735	const_iv (ST_IMMUTABLE)
		736	const_iv (ST_NOATIME)
		737	const_iv (ST_NODIRATIME)
		738	const_iv (ST_RELATIME)
		739
		740	const_iv (PROT_EXEC)
		741	const_iv (PROT_NONE)
		742	const_iv (PROT_READ)
		743	const_iv (PROT_WRITE)
		744
		745	/const_iv (MAP_FIXED)/
		746	const_iv (MAP_PRIVATE)
		747	const_iv (MAP_SHARED)
		748	const_iv (MAP_ANONYMOUS)
		749
		750	/* linuxish */
		751	const_iv (MAP_HUGETLB)
		752	const_iv (MAP_LOCKED)
		753	const_iv (MAP_NORESERVE)
		754	const_iv (MAP_POPULATE)
		755	const_iv (MAP_NONBLOCK)
		756
		757	const_iv (MCL_FUTURE)
		758	const_iv (MCL_CURRENT)
		759
		760	const_eio (MS_ASYNC)
		761	const_eio (MS_INVALIDATE)
		762	const_eio (MS_SYNC)
		763
		764	const_eio (MT_MODIFY)
		765
		766	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		767	const_eio (SYNC_FILE_RANGE_WRITE)
		768	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		769
		770	const_eio (READDIR_DENTS)
		771	const_eio (READDIR_DIRS_FIRST)
		772	const_eio (READDIR_STAT_ORDER)
		773	const_eio (READDIR_FOUND_UNKNOWN)
		774
		775	const_eio (DT_UNKNOWN)
		776	const_eio (DT_FIFO)
		777	const_eio (DT_CHR)
		778	const_eio (DT_DIR)
		779	const_eio (DT_BLK)
		780	const_eio (DT_REG)
		781	const_eio (DT_LNK)
		782	const_eio (DT_SOCK)
		783	const_eio (DT_WHT)
		784	};
		785
		786	aio_stash = gv_stashpv ("IO::AIO" , 1);
		787	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		788	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		789
		790	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		791	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		792
		793	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		794
493	create_respipe ();	795	create_respipe ();
494		796
495	if (eio_init (want_poll, done_poll) < 0)	797	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");	798	croak ("IO::AIO: unable to initialise eio library");
497		799
498	/* atfork child called in fifo order, so before eio's handler */	800	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	801	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	802	}
501		803
502	void	804	void
503	max_poll_reqs (int nreqs)	805	max_poll_reqs (int nreqs)
504	PROTOTYPE: $	806	PROTOTYPE: $
…		…
557	ALIAS:	859	ALIAS:
558	aio_fsync = EIO_FSYNC	860	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	861	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	862	PPCODE:
561	{	863	{
		864	int fd = s_fileno_croak (fh, 0);
562	dREQ;	865	dREQ;
563		866
564	req->type = ix;	867	req->type = ix;
565	req->sv1 = newSVsv (fh);	868	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	869	req->int1 = fd;
		870
		871	REQ_SEND (req);
		872	}
		873
		874	void
		875	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback=&PL_sv_undef)
		876	PROTOTYPE: $$$$;$
		877	PPCODE:
		878	{
		879	int fd = s_fileno_croak (fh, 0);
		880	dREQ;
		881
		882	req->type = EIO_SYNC_FILE_RANGE;
		883	req->sv1 = newSVsv (fh);
		884	req->int1 = fd;
		885	req->offs = offset;
		886	req->size = nbytes;
		887	req->int2 = flags;
567		888
568	REQ_SEND (req);	889	REQ_SEND (req);
569	}	890	}
570		891
571	void	892	void
572	aio_close (SV fh, SV callback=&PL_sv_undef)	893	aio_close (SV fh, SV callback=&PL_sv_undef)
573	PROTOTYPE: $;$	894	PROTOTYPE: $;$
574	PPCODE:	895	PPCODE:
575	{	896	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	897	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		898	int fd = s_fileno_croak (fh, 0);
577	dREQ;	899	dREQ;
578		900
579	if (close_pipe < 0)	901	if (close_pipe < 0)
580	{	902	{
581	int pipefd [2];	903	int pipefd [2];
…		…
589	}	911	}
590		912
591	req->type = EIO_DUP2;	913	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	914	req->int1 = close_pipe;
593	req->sv2 = newSVsv (fh);	915	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	916	req->int2 = fd;
595		917
596	REQ_SEND (req);	918	REQ_SEND (req);
597	}	919	}
598		920
599	void	921	void
…		…
603	aio_write = EIO_WRITE	925	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$	926	PROTOTYPE: $$$$$;$
605	PPCODE:	927	PPCODE:
606	{	928	{
607	STRLEN svlen;	929	STRLEN svlen;
		930	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	931	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	932	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		933
614	if (dataoffset < 0)	934	if (dataoffset < 0)
615	dataoffset += svlen;	935	dataoffset += svlen;
616		936
617	if (dataoffset < 0 \|\| dataoffset > svlen)	937	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
623	if (!SvOK (length) \|\| len + dataoffset > svlen)	943	if (!SvOK (length) \|\| len + dataoffset > svlen)
624	len = svlen - dataoffset;	944	len = svlen - dataoffset;
625	}	945	}
626	else	946	else
627	{	947	{
628	/* read: grow scalar as necessary */	948	/* read: check type and grow scalar as necessary */
		949	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	950	svptr = SvGROW (data, len + dataoffset + 1);
630	}	951	}
631		952
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	953	{
636	dREQ;	954	dREQ;
637		955
638	req->type = ix;	956	req->type = ix;
639	req->sv1 = newSVsv (fh);	957	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	958	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	959	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	960	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	961	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	962	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	963	req->stroffset = dataoffset;
…		…
669		986
670	REQ_SEND;	987	REQ_SEND;
671	}	988	}
672		989
673	void	990	void
674	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	991	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
675	PROTOTYPE: $$$$;$	992	PROTOTYPE: $$$$;$
676	PPCODE:	993	PPCODE:
677	{	994	{
		995	int ifd = s_fileno_croak (in_fh , 0);
		996	int ofd = s_fileno_croak (out_fh, 1);
678	dREQ;	997	dREQ;
679		998
680	req->type = EIO_SENDFILE;	999	req->type = EIO_SENDFILE;
681	req->sv1 = newSVsv (out_fh);	1000	req->sv1 = newSVsv (out_fh);
682	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1001	req->int1 = ofd;
683	req->sv2 = newSVsv (in_fh);	1002	req->sv2 = newSVsv (in_fh);
684	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1003	req->int2 = ifd;
685	req->offs = SvVAL64 (in_offset);	1004	req->offs = in_offset;
686	req->size = length;	1005	req->size = length;
687		1006
688	REQ_SEND;	1007	REQ_SEND;
689	}	1008	}
690		1009
691	void	1010	void
692	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1011	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
693	PROTOTYPE: $$$;$	1012	PROTOTYPE: $$$;$
694	PPCODE:	1013	PPCODE:
695	{	1014	{
		1015	int fd = s_fileno_croak (fh, 0);
696	dREQ;	1016	dREQ;
697		1017
698	req->type = EIO_READAHEAD;	1018	req->type = EIO_READAHEAD;
699	req->sv1 = newSVsv (fh);	1019	req->sv1 = newSVsv (fh);
700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1020	req->int1 = fd;
701	req->offs = SvVAL64 (offset);	1021	req->offs = offset;
702	req->size = length;	1022	req->size = length;
703		1023
704	REQ_SEND;	1024	REQ_SEND;
705	}	1025	}
706		1026
707	void	1027	void
708	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1028	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
709	ALIAS:	1029	ALIAS:
710	aio_stat = EIO_STAT	1030	aio_stat = EIO_STAT
711	aio_lstat = EIO_LSTAT	1031	aio_lstat = EIO_LSTAT
		1032	aio_statvfs = EIO_STATVFS
712	PPCODE:	1033	PPCODE:
713	{	1034	{
714	dREQ;	1035	dREQ;
715		1036
716	req->sv1 = newSVsv (fh_or_path);	1037	req->sv1 = newSVsv (fh_or_path);
…		…
720	req->type = ix;	1041	req->type = ix;
721	req->ptr1 = SvPVbyte_nolen (req->sv1);	1042	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	}	1043	}
723	else	1044	else
724	{	1045	{
725	req->type = EIO_FSTAT;	1046	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
726	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1047	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
727	}	1048	}
728		1049
729	REQ_SEND;	1050	REQ_SEND;
730	}	1051	}
…		…
825		1146
826	REQ_SEND;	1147	REQ_SEND;
827	}	1148	}
828		1149
829	void	1150	void
		1151	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)
		1152	PPCODE:
		1153	{
		1154	dREQ;
		1155
		1156	req->type = EIO_READDIR;
		1157	req->sv1 = newSVsv (pathname);
		1158	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1159	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1160
		1161	if (flags & EIO_READDIR_DENTS)
		1162	req->int1 \|= EIO_READDIR_CUSTOM2;
		1163
		1164	REQ_SEND;
		1165	}
		1166
		1167	void
830	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1168	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
831	ALIAS:	1169	ALIAS:
832	aio_unlink = EIO_UNLINK	1170	aio_unlink = EIO_UNLINK
833	aio_rmdir = EIO_RMDIR	1171	aio_rmdir = EIO_RMDIR
834	aio_readdir = EIO_READDIR	1172	aio_readdir = EIO_READDIR
…		…
876		1214
877	REQ_SEND;	1215	REQ_SEND;
878	}	1216	}
879		1217
880	void	1218	void
		1219	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1220	ALIAS:
		1221	aio_mtouch = EIO_MTOUCH
		1222	aio_msync = EIO_MSYNC
		1223	PROTOTYPE: $$$$;$
		1224	PPCODE:
		1225	{
		1226	STRLEN svlen;
		1227	UV len = SvUV (length);
		1228	char *svptr = SvPVbyte (data, svlen);
		1229
		1230	if (offset < 0)
		1231	offset += svlen;
		1232
		1233	if (offset < 0 \|\| offset > svlen)
		1234	croak ("offset outside of scalar");
		1235
		1236	if (!SvOK (length) \|\| len + offset > svlen)
		1237	len = svlen - offset;
		1238
		1239	{
		1240	dREQ;
		1241
		1242	req->type = ix;
		1243	req->size = len;
		1244	req->sv2 = SvREFCNT_inc (data);
		1245	req->ptr2 = (char *)svptr + offset;
		1246	req->int1 = flags;
		1247
		1248	REQ_SEND;
		1249	}
		1250	}
		1251
		1252	void
881	aio_busy (double delay, SV *callback=&PL_sv_undef)	1253	aio_busy (double delay, SV *callback=&PL_sv_undef)
882	PPCODE:	1254	PPCODE:
883	{	1255	{
884	dREQ;	1256	dREQ;
885		1257
…		…
896	{	1268	{
897	dREQ;	1269	dREQ;
898		1270
899	req->type = EIO_GROUP;	1271	req->type = EIO_GROUP;
900		1272
901	eio_submit (req);	1273	req_submit (req);
902	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1274	XPUSHs (req_sv (req, aio_grp_stash));
903	}	1275	}
904		1276
905	void	1277	void
906	aio_nop (SV *callback=&PL_sv_undef)	1278	aio_nop (SV *callback=&PL_sv_undef)
907	ALIAS:	1279	ALIAS:
…		…
959		1331
960	int	1332	int
961	poll_fileno()	1333	poll_fileno()
962	PROTOTYPE:	1334	PROTOTYPE:
963	CODE:	1335	CODE:
964	RETVAL = respipe [0];	1336	RETVAL = s_epipe_fd (&respipe);
965	OUTPUT:	1337	OUTPUT:
966	RETVAL	1338	RETVAL
967		1339
968	int	1340	int
969	poll_cb(...)	1341	poll_cb(...)
…		…
1009	CODE:	1381	CODE:
1010	RETVAL = eio_nthreads ();	1382	RETVAL = eio_nthreads ();
1011	OUTPUT:	1383	OUTPUT:
1012	RETVAL	1384	RETVAL
1013		1385
		1386	int
		1387	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1388	PROTOTYPE: $$$$
		1389	CODE:
		1390	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1391	RETVAL = posix_fadvise (fh, offset, length, advice);
		1392	#else
		1393	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
		1394	#endif
		1395	OUTPUT:
		1396	RETVAL
		1397
		1398	ssize_t
		1399	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1400	PROTOTYPE: $$$$
		1401	CODE:
		1402	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1403	OUTPUT:
		1404	RETVAL
		1405
		1406	void
		1407	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1408	PROTOTYPE: $$$$$;$
		1409	PPCODE:
		1410	sv_unmagic (scalar, MMAP_MAGIC);
		1411	{
		1412	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1413	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1414	if (addr == (void *)-1)
		1415	XSRETURN_NO;
		1416
		1417	sv_force_normal (scalar);
		1418
		1419	/* we store the length in mg_obj, as namlen is I32 :/ */
		1420	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1421	->mg_obj = (SV *)length;
		1422
		1423	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1424
		1425	if (!(prot & PROT_WRITE))
		1426	SvREADONLY_on (scalar);
		1427
		1428	if (SvLEN (scalar))
		1429	Safefree (SvPVX (scalar));
		1430
		1431	SvPVX (scalar) = (char *)addr;
		1432	SvCUR_set (scalar, length);
		1433	SvLEN_set (scalar, 0);
		1434	SvPOK_only (scalar);
		1435
		1436	XSRETURN_YES;
		1437	}
		1438
		1439	void
		1440	munmap (SV *scalar)
		1441	PROTOTYPE: $
		1442	CODE:
		1443	sv_unmagic (scalar, MMAP_MAGIC);
		1444
		1445	int
		1446	madvise (SV *scalar, off_t offset, off_t length, IV advice)
		1447	PROTOTYPE: $$$$
		1448	CODE:
		1449	{
		1450	char *addr = SvPV_nolen (scalar) + offset;
		1451
		1452	if (!SvOK (ST (2)))
		1453	length = SvCUR (scalar) - offset;
		1454
		1455	if (addr >= SvEND (scalar) \|\| length <= 0)
		1456	XSRETURN_EMPTY;
		1457
		1458	#if _XOPEN_SOURCE >= 600 && !NO_MADVISE
		1459	RETVAL = posix_madvise (addr, length, advice);
		1460	#else
		1461	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
		1462	#endif
		1463	}
		1464	OUTPUT:
		1465	RETVAL
		1466
		1467	int
		1468	mlockall (int flags)
		1469	PROTOTYPE: $
		1470	CODE:
		1471	#if _POSIX_MEMLOCK
		1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
		1473	extern int mallopt (int, int);
		1474	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
		1475	#endif
		1476	mlockall (flags);
		1477	#else
		1478	RETVAL = -1;
		1479	errno = ENOSYS;
		1480	#endif
		1481	OUTPUT:
		1482	RETVAL
		1483
		1484	int
		1485	munlockall ()
		1486	PROTOTYPE:
		1487	CODE:
		1488	#if _POSIX_MEMLOCK
		1489	munlockall ();
		1490	#else
		1491	RETVAL = -1;
		1492	errno = ENOSYS;
		1493	#endif
		1494	OUTPUT:
		1495	RETVAL
		1496
1014	void _on_next_submit (SV *cb)	1497	void _on_next_submit (SV *cb)
1015	CODE:	1498	CODE:
1016	SvREFCNT_dec (on_next_submit);	1499	SvREFCNT_dec (on_next_submit);
1017	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1018		1501
…		…
1025	CODE:	1508	CODE:
1026	eio_cancel (req);	1509	eio_cancel (req);
1027		1510
1028	void	1511	void
1029	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1512	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1030	CODE:	1513	PPCODE:
		1514	{
		1515	if (GIMME_V != G_VOID)
		1516	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1517
		1518	if (items > 1)
		1519	{
		1520	SV *cb_cv =get_cb (callback);
		1521
1031	SvREFCNT_dec (req->callback);	1522	SvREFCNT_dec (req->callback);
1032	req->callback = newSVsv (callback);	1523	req->callback = SvREFCNT_inc (cb_cv);
		1524	}
		1525	}
1033		1526
1034	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1527	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1035		1528
1036	void	1529	void
1037	add (aio_req grp, ...)	1530	add (aio_req grp, ...)
…		…
1069	AV *av;	1562	AV *av;
1070		1563
1071	grp->errorno = errno;	1564	grp->errorno = errno;
1072		1565
1073	av = newAV ();	1566	av = newAV ();
		1567	av_extend (av, items - 1);
1074		1568
1075	for (i = 1; i < items; ++i )	1569	for (i = 1; i < items; ++i )
1076	av_push (av, newSVsv (ST (i)));	1570	av_push (av, newSVsv (ST (i)));
1077		1571
1078	SvREFCNT_dec (grp->sv1);	1572	SvREFCNT_dec (grp->sv1);
…		…
1092	void	1586	void
1093	feed (aio_req grp, SV *callback=&PL_sv_undef)	1587	feed (aio_req grp, SV *callback=&PL_sv_undef)
1094	CODE:	1588	CODE:
1095	{	1589	{
1096	SvREFCNT_dec (grp->sv2);	1590	SvREFCNT_dec (grp->sv2);
1097	grp->sv2 = newSVsv (callback);	1591	grp->sv2 = newSVsv (callback);
		1592	grp->feed = aio_grp_feed;
1098		1593
1099	if (grp->int2 <= 0)	1594	if (grp->int2 <= 0)
1100	grp->int2 = 2;	1595	grp->int2 = 2;
1101		1596
1102	eio_grp_limit (grp, grp->int2);	1597	eio_grp_limit (grp, grp->int2);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.126 by root, Thu Sep 25 07:56:07 2008 UTC vs. Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.126 by root, Thu Sep 25 07:56:07 2008 UTC vs.
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC