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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.121 by root, Tue May 13 18:50:27 2008 UTC vs.
Revision 1.170 by root, Wed Aug 4 16:09:36 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
…		…
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
67		74
68	#endif	75	#endif
69		76
		77	/* perl stupidly overrides readdir and maybe others */
		78	/* with thread-unsafe versions, imagine that :( */
		79	#undef readdir
		80	#undef opendir
		81	#undef closedir
		82
70	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
71		84
72	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
74	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
75	#else	90	#else
		91	# define VAL64 NV
76	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
77	#endif	94	#endif
78		95
79	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
80	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 */
81		112
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV aio_stash, aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		114
85	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
86	SV *callback; \	116	SV *callback; \
87	SV sv1, sv2; \	117	SV sv1, sv2; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
89	SV *self;	119	SV *self;
90		120
		121	#define EIO_NO_WRAPPERS 1
		122
91	#include "libeio/eio.h"	123	#include "libeio/eio.h"
		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	#if _XOPEN_SOURCE < 600 \|\| NO_FADVISE
		146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		147	#endif
		148
		149	#ifndef POSIX_MADV_NORMAL
		150	# define POSIX_MADV_NORMAL 0
		151	# define NO_MADVISE 1
		152	#endif
		153	#ifndef POSIX_MADV_SEQUENTIAL
		154	# define POSIX_MADV_SEQUENTIAL 0
		155	#endif
		156	#ifndef POSIX_MADV_RANDOM
		157	# define POSIX_MADV_RANDOM 0
		158	#endif
		159	#ifndef POSIX_MADV_WILLNEED
		160	# define POSIX_MADV_WILLNEED 0
		161	#endif
		162	#ifndef POSIX_MADV_DONTNEED
		163	# define POSIX_MADV_DONTNEED 0
		164	#endif
		165
		166	#if _XOPEN_SOURCE < 600 \|\| NO_MADVISE
		167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		168	#endif
		169
		170	#ifndef ST_NODEV
		171	# define ST_NODEV 0
		172	#endif
		173	#ifndef ST_NOEXEC
		174	# define ST_NOEXEC 0
		175	#endif
		176	#ifndef ST_SYNCHRONOUS
		177	# define ST_SYNCHRONOUS 0
		178	#endif
		179	#ifndef ST_MANDLOCK
		180	# define ST_MANDLOCK 0
		181	#endif
		182	#ifndef ST_WRITE
		183	# define ST_WRITE 0
		184	#endif
		185	#ifndef ST_APPEND
		186	# define ST_APPEND 0
		187	#endif
		188	#ifndef ST_IMMUTABLE
		189	# define ST_IMMUTABLE 0
		190	#endif
		191	#ifndef ST_NOATIME
		192	# define ST_NOATIME 0
		193	#endif
		194	#ifndef ST_NODIRATIME
		195	# define ST_NODIRATIME 0
		196	#endif
		197	#ifndef ST_RELATIME
		198	# define ST_RELATIME 0
		199	#endif
		200
		201	#ifndef MCL_CURRENT
		202	# define MCL_CURRENT 0
		203	#endif
		204	#ifndef MCL_FUTURE
		205	# define MCL_FUTURE 0
		206	#endif
		207
		208	#ifndef MAP_ANONYMOUS
		209	# ifdef MAP_ANON
		210	# define MAP_ANONYMOUS MAP_ANON
		211	# else
		212	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		213	# endif
		214	#endif
		215	#ifndef MAP_HUGETLB
		216	# define MAP_HUGETLB 0
		217	#endif
		218	#ifndef MAP_LOCKED
		219	# define MAP_LOCKED 0
		220	#endif
		221	#ifndef MAP_NORESERVE
		222	# define MAP_NORESERVE 0
		223	#endif
		224	#ifndef MAP_POPULATE
		225	# define MAP_POPULATE 0
		226	#endif
		227	#ifndef MAP_NONBLOCK
		228	# define MAP_NONBLOCK 0
		229	#endif
		230
		231	#ifndef PAGESIZE
		232	# define PAGESIZE sysconf (_SC_PAGESIZE)
		233	#endif
92		234
93	static int req_invoke (eio_req *req);	235	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	236	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	237	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	238	#define EIO_DESTROY(req) req_destroy (req)
99		239
100	enum {	240	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	241	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
108		248
109	static SV *on_next_submit;	249	static SV *on_next_submit;
110	static int next_pri = EIO_PRI_DEFAULT;	250	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	251	static int max_outstanding;
112		252
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	253	static s_epipe respipe;
114		254
115	static void req_destroy (aio_req req);	255	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	256	static void req_cancel (aio_req req);
117		257
118	static void want_poll (void)	258	static void want_poll (void)
119	{	259	{
120	/* write a dummy byte to the pipe so fh becomes ready */	260	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	261	s_epipe_signal (&respipe);
122	}	262	}
123		263
124	static void done_poll (void)	264	static void done_poll (void)
125	{	265	{
126	/* read any signals sent by the worker threads */	266	/* read any signals sent by the worker threads */
127	char buf [4];	267	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	268	}
131		269
132	/* must be called at most once */	270	/* must be called at most once */
133	static SV req_sv (aio_req req, const char klass)	271	static SV req_sv (aio_req req, HV stash)
134	{	272	{
135	if (!req->self)	273	if (!req->self)
136	{	274	{
137	req->self = (SV *)newHV ();	275	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	276	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	277	}
140		278
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	279	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	280	}
143		281
144	static aio_req SvAIO_REQ (SV *sv)	282	static aio_req SvAIO_REQ (SV *sv)
145	{	283	{
146	MAGIC *mg;	284	MAGIC *mg;
147		285
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	286	if (!SvROK (sv)
		287	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		288	&& SvSTASH (SvRV (sv)) != aio_req_stash
		289	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	290	croak ("object of class IO::AIO::REQ expected");
150		291
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	292	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		293
153	return mg ? (aio_req)mg->mg_ptr : 0;	294	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	295	}
…		…
160	dSP;	301	dSP;
161		302
162	ENTER;	303	ENTER;
163	SAVETMPS;	304	SAVETMPS;
164	PUSHMARK (SP);	305	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	306	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	307	PUTBACK;
167	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	308	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
168	SPAGAIN;	309	SPAGAIN;
169	FREETMPS;	310	FREETMPS;
170	LEAVE;	311	LEAVE;
…		…
173		314
174	static void req_submit (eio_req *req)	315	static void req_submit (eio_req *req)
175	{	316	{
176	eio_submit (req);	317	eio_submit (req);
177		318
178	if (on_next_submit)	319	if (expect_false (on_next_submit))
179	{	320	{
180	dSP;	321	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	322	SV *cb = sv_2mortal (on_next_submit);
182		323
183	on_next_submit = 0;	324	on_next_submit = 0;
…		…
188	}	329	}
189	}	330	}
190		331
191	static int req_invoke (eio_req *req)	332	static int req_invoke (eio_req *req)
192	{	333	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	334	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	335	SvREADONLY_off (req->sv2);
197		336
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	337	if (!EIO_CANCELLED (req) && req->callback)
199	{	338	{
		339	dSP;
		340	static SV sv_result_cache; / caches the result integer SV */
		341	SV *sv_result;
		342
200	ENTER;	343	ENTER;
201	SAVETMPS;	344	SAVETMPS;
202	PUSHMARK (SP);	345	PUSHMARK (SP);
203	EXTEND (SP, 1);	346	EXTEND (SP, 1);
		347
		348	/* do not recreate the result IV from scratch each time */
		349	if (expect_true (sv_result_cache))
		350	{
		351	sv_result = sv_result_cache; sv_result_cache = 0;
		352	SvIV_set (sv_result, req->result);
		353	}
		354	else
		355	{
		356	sv_result = newSViv (req->result);
		357	SvREADONLY_on (sv_result);
		358	}
204		359
205	switch (req->type)	360	switch (req->type)
206	{	361	{
207	case EIO_READDIR:	362	case EIO_READDIR:
208	{	363	{
209	SV *rv = &PL_sv_undef;	364	SV *rv = &PL_sv_undef;
210		365
211	if (req->result >= 0)	366	if (req->result >= 0)
212	{	367	{
213	int i;	368	int i;
214	char *buf = req->ptr2;	369	char names = (char )req->ptr2;
		370	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
215	AV *av = newAV ();	371	AV *av = newAV ();
216		372
217	av_extend (av, req->result - 1);	373	av_extend (av, req->result - 1);
218		374
219	for (i = 0; i < req->result; ++i)	375	for (i = 0; i < req->result; ++i)
220	{	376	{
221	SV *sv = newSVpv (buf, 0);	377	if (req->int1 & EIO_READDIR_DENTS)
		378	{
		379	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		380
		381	if (req->int1 & EIO_READDIR_CUSTOM2)
		382	{
		383	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		384	AV *avent = newAV ();
		385
		386	av_extend (avent, 2);
		387
		388	if (!sv_type [ent->type])
		389	{
		390	sv_type [ent->type] = newSViv (ent->type);
		391	SvREADONLY_on (sv_type [ent->type]);
		392	}
		393
		394	av_store (avent, 0, namesv);
		395	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		396	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		397
		398	av_store (av, i, newRV_noinc ((SV *)avent));
		399	}
		400	else
223	av_store (av, i, sv);	401	av_store (av, i, namesv);
		402
		403	++ent;
		404	}
		405	else
		406	{
		407	SV *name = newSVpv (names, 0);
		408	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	409	names += SvCUR (name) + 1;
		410	}
225	}	411	}
226		412
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	413	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	414	}
229		415
230	PUSHs (rv);	416	PUSHs (rv);
		417
		418	if (req->int1 & EIO_READDIR_CUSTOM1)
		419	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
231	}	420	}
232	break;	421	break;
233		422
234	case EIO_OPEN:	423	case EIO_OPEN:
235	{	424	{
…		…
241	GV gv = (GV )sv_newmortal ();	430	GV gv = (GV )sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	431	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
243	char sym [64];	432	char sym [64];
244	int symlen;	433	int symlen;
245		434
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	435	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	436	gv_init (gv, aio_stash, sym, symlen, 0);
248		437
249	symlen = snprintf (	438	symlen = snprintf (
250	sym,	439	sym,
251	sizeof (sym),	440	sizeof (sym),
252	"%s&=%d",	441	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	442	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	443	(int)req->result
255	);	444	);
256		445
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	446	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	447	fh = (SV *)gv;
259	}	448	}
260		449
261	PUSHs (fh);	450	PUSHs (fh);
262	}	451	}
		452	break;
		453
		454	case EIO_STATVFS:
		455	case EIO_FSTATVFS:
		456	{
		457	SV *rv = &PL_sv_undef;
		458
		459	if (req->result >= 0)
		460	{
		461	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		462	HV *hv = newHV ();
		463
		464	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		465
		466	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		467	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		468	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		469	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		470	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		471	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		472	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		473	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		474	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		475	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		476	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		477	}
		478
		479	PUSHs (rv);
		480	}
		481
263	break;	482	break;
264		483
265	case EIO_GROUP:	484	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	485	req->int1 = 2; /* mark group as finished */
267		486
…		…
289	case EIO_LSTAT:	508	case EIO_LSTAT:
290	case EIO_FSTAT:	509	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	510	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292	PL_laststatval = req->result;	511	PL_laststatval = req->result;
293	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	512	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	513	PUSHs (sv_result);
295	break;	514	break;
296		515
297	case EIO_READ:	516	case EIO_READ:
		517	{
298	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	518	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299	*SvEND (req->sv2) = 0;	519	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	520	SvPOK_only (req->sv2);
		521	SvSETMAGIC (req->sv2);
		522	PUSHs (sv_result);
		523	}
301	break;	524	break;
302		525
303	case EIO_DUP2:	526	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
304	if (req->result > 0)	527	if (req->result > 0)
305	req->result = 0;	528	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	529	/* FALLTHROUGH */
307		530
308	default:	531	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	532	PUSHs (sv_result);
310	break;	533	break;
311	}	534	}
312		535
313	errno = req->errorno;	536	errno = req->errorno;
314		537
315	PUTBACK;	538	PUTBACK;
316	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	539	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
317	SPAGAIN;	540	SPAGAIN;
		541
		542	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		543	SvREFCNT_dec (sv_result);
		544	else
		545	sv_result_cache = sv_result;
318		546
319	FREETMPS;	547	FREETMPS;
320	LEAVE;	548	LEAVE;
321		549
322	PUTBACK;	550	PUTBACK;
…		…
351	grp->sv2 = 0;	579	grp->sv2 = 0;
352		580
353	eio_grp_cancel (grp);	581	eio_grp_cancel (grp);
354	}	582	}
355		583
356	#ifdef USE_SOCKETS_AS_HANDLES
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))
358	#else
359	# define TO_SOCKET(x) (x)
360	#endif
361
362	static void	584	static void
363	create_respipe (void)	585	create_respipe (void)
364	{	586	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))	587	if (s_epipe_renew (&respipe))
374	#endif
375	croak ("unable to initialize result pipe");	588	croak ("IO::AIO: unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}	589	}
399		590
400	static void poll_wait (void)	591	static void poll_wait (void)
401	{	592	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	593	while (eio_nreqs ())
405	{	594	{
406	int size;	595	int size;
407		596
408	X_LOCK (reslock);	597	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	599	X_UNLOCK (reslock);
411		600
412	if (size)	601	if (size)
413	return;	602	return;
414		603
415	maybe_start_thread ();	604	etp_maybe_start_thread ();
416		605
417	FD_ZERO (&rfd);	606	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	607	}
422	}	608	}
423		609
424	static int poll_cb (void)	610	static int poll_cb (void)
425	{	611	{
426	int res;	612	for (;;)
427
428	do
429	{	613	{
430	res = eio_poll ();	614	int res = eio_poll ();
431		615
432	if (res > 0)	616	if (res > 0)
433	croak (0);	617	croak (0);
		618
		619	if (!max_outstanding \|\| max_outstanding > eio_nreqs ())
		620	return res;
		621
		622	poll_wait ();
434	}	623	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	624	}
439		625
440	static void atfork_child (void)	626	static void atfork_child (void)
441	{	627	{
442	create_respipe ();	628	create_respipe ();
443	}	629	}
444		630
		631	/*****************************************************************************/
		632
		633	#if !_POSIX_MAPPED_FILES
		634	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		635	# define munmap(addr,length) (errno = ENOSYS, -1)
		636	#endif
		637
		638	#define MMAP_MAGIC PERL_MAGIC_ext
		639
		640	static int
		641	mmap_free (pTHX_ SV sv, MAGIC mg)
		642	{
		643	int old_errno = errno;
		644	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		645	errno = old_errno;
		646
		647	mg->mg_obj = 0; /* just in case */
		648
		649	SvREADONLY_off (sv);
		650
		651	if (SvPVX (sv) != mg->mg_ptr)
		652	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		653
		654	SvCUR_set (sv, 0);
		655	SvPVX (sv) = 0;
		656	SvOK_off (sv);
		657
		658	return 0;
		659	}
		660
		661	static MGVTBL mmap_vtbl = {
		662	0, 0, 0, 0, mmap_free
		663	};
		664
		665	/*****************************************************************************/
		666
		667	static SV *
		668	get_cb (SV *cb_sv)
		669	{
		670	SvGETMAGIC (cb_sv);
		671	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		672	}
		673
445	#define dREQ \	674	#define dREQ \
		675	SV *cb_cv; \
446	aio_req req; \	676	aio_req req; \
447	int req_pri = next_pri; \	677	int req_pri = next_pri; \
448	next_pri = EIO_PRI_DEFAULT; \	678	next_pri = EIO_PRI_DEFAULT; \
449	\	679	\
450	if (SvOK (callback) && !SvROK (callback)) \	680	cb_cv = get_cb (callback); \
451	croak ("callback must be undef or of reference type"); \
452	\	681	\
453	Newz (0, req, 1, eio_req); \	682	Newz (0, req, 1, eio_req); \
454	if (!req) \	683	if (!req) \
455	croak ("out of memory during eio_req allocation"); \	684	croak ("out of memory during eio_req allocation"); \
456	\	685	\
457	req->callback = newSVsv (callback); \	686	req->callback = SvREFCNT_inc (cb_cv); \
458	req->pri = req_pri	687	req->pri = req_pri
459		688
460	#define REQ_SEND \	689	#define REQ_SEND \
		690	PUTBACK; \
461	req_submit (req); \	691	req_submit (req); \
		692	SPAGAIN; \
462	\	693	\
463	if (GIMME_V != G_VOID) \	694	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	695	XPUSHs (req_sv (req, aio_req_stash));
465		696
466	MODULE = IO::AIO PACKAGE = IO::AIO	697	MODULE = IO::AIO PACKAGE = IO::AIO
467		698
468	PROTOTYPES: ENABLE	699	PROTOTYPES: ENABLE
469		700
470	BOOT:	701	BOOT:
471	{	702	{
472	stash = gv_stashpv ("IO::AIO", 1);	703	static const struct {
473		704	const char *name;
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	705	IV iv;
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	706	} *civ, const_iv[] = {
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	707	# define const_niv(name, value) { # name, (IV) value },
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	708	# define const_iv(name) { # name, (IV) name },
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	709	# define const_eio(name) { # name, (IV) EIO_ ## name },
		710	const_iv (EXDEV)
		711	const_iv (ENOSYS)
		712	const_iv (O_RDONLY)
		713	const_iv (O_WRONLY)
		714	const_iv (O_RDWR)
		715	const_iv (O_CREAT)
		716	const_iv (O_TRUNC)
		717	const_iv (O_EXCL)
		718	const_iv (O_APPEND)
479	#ifdef _WIN32	719	#ifndef _WIN32
480	X_MUTEX_CHECK (wrklock);	720	const_iv (S_IFIFO)
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486
487	X_COND_CHECK (reqwait);
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif	721	#endif
		722	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		723	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		724	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		725	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		726	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		727	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
491		728
		729	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		730	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		731	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		732	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		733	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		734
		735	const_iv (ST_RDONLY)
		736	const_iv (ST_NOSUID)
		737	const_iv (ST_NODEV)
		738	const_iv (ST_NOEXEC)
		739	const_iv (ST_SYNCHRONOUS)
		740	const_iv (ST_MANDLOCK)
		741	const_iv (ST_WRITE)
		742	const_iv (ST_APPEND)
		743	const_iv (ST_IMMUTABLE)
		744	const_iv (ST_NOATIME)
		745	const_iv (ST_NODIRATIME)
		746	const_iv (ST_RELATIME)
		747
		748	const_iv (PROT_EXEC)
		749	const_iv (PROT_NONE)
		750	const_iv (PROT_READ)
		751	const_iv (PROT_WRITE)
		752
		753	/const_iv (MAP_FIXED)/
		754	const_iv (MAP_PRIVATE)
		755	const_iv (MAP_SHARED)
		756	const_iv (MAP_ANONYMOUS)
		757
		758	/* linuxish */
		759	const_iv (MAP_HUGETLB)
		760	const_iv (MAP_LOCKED)
		761	const_iv (MAP_NORESERVE)
		762	const_iv (MAP_POPULATE)
		763	const_iv (MAP_NONBLOCK)
		764
		765	const_iv (MCL_FUTURE)
		766	const_iv (MCL_CURRENT)
		767
		768	const_eio (MS_ASYNC)
		769	const_eio (MS_INVALIDATE)
		770	const_eio (MS_SYNC)
		771
		772	const_eio (MT_MODIFY)
		773
		774	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		775	const_eio (SYNC_FILE_RANGE_WRITE)
		776	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		777
		778	const_eio (READDIR_DENTS)
		779	const_eio (READDIR_DIRS_FIRST)
		780	const_eio (READDIR_STAT_ORDER)
		781	const_eio (READDIR_FOUND_UNKNOWN)
		782
		783	const_eio (DT_UNKNOWN)
		784	const_eio (DT_FIFO)
		785	const_eio (DT_CHR)
		786	const_eio (DT_DIR)
		787	const_eio (DT_BLK)
		788	const_eio (DT_REG)
		789	const_eio (DT_LNK)
		790	const_eio (DT_SOCK)
		791	const_eio (DT_WHT)
		792	};
		793
		794	aio_stash = gv_stashpv ("IO::AIO" , 1);
		795	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		796	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		797
		798	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		799	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		800
		801	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		802
492	create_respipe ();	803	create_respipe ();
493		804
494	if (eio_init (want_poll, done_poll) < 0)	805	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");	806	croak ("IO::AIO: unable to initialise eio library");
496		807
497	/* atfork child called in fifo order, so before eio's handler */	808	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);	809	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	810	}
500		811
501	void	812	void
502	max_poll_reqs (int nreqs)	813	max_poll_reqs (int nreqs)
503	PROTOTYPE: $	814	PROTOTYPE: $
…		…
556	ALIAS:	867	ALIAS:
557	aio_fsync = EIO_FSYNC	868	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	869	aio_fdatasync = EIO_FDATASYNC
559	PPCODE:	870	PPCODE:
560	{	871	{
		872	int fd = s_fileno_croak (fh, 0);
561	dREQ;	873	dREQ;
562		874
563	req->type = ix;	875	req->type = ix;
564	req->sv1 = newSVsv (fh);	876	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	877	req->int1 = fd;
		878
		879	REQ_SEND (req);
		880	}
		881
		882	void
		883	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback=&PL_sv_undef)
		884	PROTOTYPE: $$$$;$
		885	PPCODE:
		886	{
		887	int fd = s_fileno_croak (fh, 0);
		888	dREQ;
		889
		890	req->type = EIO_SYNC_FILE_RANGE;
		891	req->sv1 = newSVsv (fh);
		892	req->int1 = fd;
		893	req->offs = offset;
		894	req->size = nbytes;
		895	req->int2 = flags;
566		896
567	REQ_SEND (req);	897	REQ_SEND (req);
568	}	898	}
569		899
570	void	900	void
571	aio_close (SV fh, SV callback=&PL_sv_undef)	901	aio_close (SV fh, SV callback=&PL_sv_undef)
572	PROTOTYPE: $;$	902	PROTOTYPE: $;$
573	PPCODE:	903	PPCODE:
574	{	904	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	905	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		906	int fd = s_fileno_croak (fh, 0);
576	dREQ;	907	dREQ;
577		908
578	if (close_pipe < 0)	909	if (close_pipe < 0)
579	{	910	{
580	int pipefd [2];	911	int pipefd [2];
…		…
588	}	919	}
589		920
590	req->type = EIO_DUP2;	921	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	922	req->int1 = close_pipe;
592	req->sv2 = newSVsv (fh);	923	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	924	req->int2 = fd;
594		925
595	REQ_SEND (req);	926	REQ_SEND (req);
596	}	927	}
597		928
598	void	929	void
…		…
602	aio_write = EIO_WRITE	933	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$	934	PROTOTYPE: $$$$$;$
604	PPCODE:	935	PPCODE:
605	{	936	{
606	STRLEN svlen;	937	STRLEN svlen;
		938	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	939	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	940	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		941
613	if (dataoffset < 0)	942	if (dataoffset < 0)
614	dataoffset += svlen;	943	dataoffset += svlen;
615		944
616	if (dataoffset < 0 \|\| dataoffset > svlen)	945	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
622	if (!SvOK (length) \|\| len + dataoffset > svlen)	951	if (!SvOK (length) \|\| len + dataoffset > svlen)
623	len = svlen - dataoffset;	952	len = svlen - dataoffset;
624	}	953	}
625	else	954	else
626	{	955	{
627	/* read: grow scalar as necessary */	956	/* read: check type and grow scalar as necessary */
		957	SvUPGRADE (data, SVt_PV);
628	svptr = SvGROW (data, len + dataoffset + 1);	958	svptr = SvGROW (data, len + dataoffset + 1);
629	}	959	}
630		960
631	if (len < 0)
632	croak ("length must not be negative");
633
634	{	961	{
635	dREQ;	962	dREQ;
636		963
637	req->type = ix;	964	req->type = ix;
638	req->sv1 = newSVsv (fh);	965	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	966	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	967	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	968	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	969	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	970	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	971	req->stroffset = dataoffset;
…		…
668		994
669	REQ_SEND;	995	REQ_SEND;
670	}	996	}
671		997
672	void	998	void
673	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	999	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$	1000	PROTOTYPE: $$$$;$
675	PPCODE:	1001	PPCODE:
676	{	1002	{
		1003	int ifd = s_fileno_croak (in_fh , 0);
		1004	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1005	dREQ;
678		1006
679	req->type = EIO_SENDFILE;	1007	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1008	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1009	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1010	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1011	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1012	req->offs = in_offset;
685	req->size = length;	1013	req->size = length;
686		1014
687	REQ_SEND;	1015	REQ_SEND;
688	}	1016	}
689		1017
690	void	1018	void
691	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1019	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$	1020	PROTOTYPE: $$$;$
693	PPCODE:	1021	PPCODE:
694	{	1022	{
		1023	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1024	dREQ;
696		1025
697	req->type = EIO_READAHEAD;	1026	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1027	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1028	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1029	req->offs = offset;
701	req->size = length;	1030	req->size = length;
702		1031
703	REQ_SEND;	1032	REQ_SEND;
704	}	1033	}
705		1034
706	void	1035	void
707	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1036	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
708	ALIAS:	1037	ALIAS:
709	aio_stat = EIO_STAT	1038	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1039	aio_lstat = EIO_LSTAT
		1040	aio_statvfs = EIO_STATVFS
711	PPCODE:	1041	PPCODE:
712	{	1042	{
713	dREQ;	1043	dREQ;
714		1044
715	req->sv1 = newSVsv (fh_or_path);	1045	req->sv1 = newSVsv (fh_or_path);
…		…
719	req->type = ix;	1049	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);	1050	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}	1051	}
722	else	1052	else
723	{	1053	{
724	req->type = EIO_FSTAT;	1054	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1055	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}	1056	}
727		1057
728	REQ_SEND;	1058	REQ_SEND;
729	}	1059	}
…		…
824		1154
825	REQ_SEND;	1155	REQ_SEND;
826	}	1156	}
827		1157
828	void	1158	void
		1159	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)
		1160	PPCODE:
		1161	{
		1162	dREQ;
		1163
		1164	req->type = EIO_READDIR;
		1165	req->sv1 = newSVsv (pathname);
		1166	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1167	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1168
		1169	if (flags & EIO_READDIR_DENTS)
		1170	req->int1 \|= EIO_READDIR_CUSTOM2;
		1171
		1172	REQ_SEND;
		1173	}
		1174
		1175	void
829	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1176	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
830	ALIAS:	1177	ALIAS:
831	aio_unlink = EIO_UNLINK	1178	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1179	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1180	aio_readdir = EIO_READDIR
…		…
875		1222
876	REQ_SEND;	1223	REQ_SEND;
877	}	1224	}
878		1225
879	void	1226	void
		1227	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1228	ALIAS:
		1229	aio_mtouch = EIO_MTOUCH
		1230	aio_msync = EIO_MSYNC
		1231	PROTOTYPE: $$$$;$
		1232	PPCODE:
		1233	{
		1234	STRLEN svlen;
		1235	UV len = SvUV (length);
		1236	char *svptr = SvPVbyte (data, svlen);
		1237
		1238	if (offset < 0)
		1239	offset += svlen;
		1240
		1241	if (offset < 0 \|\| offset > svlen)
		1242	croak ("offset outside of scalar");
		1243
		1244	if (!SvOK (length) \|\| len + offset > svlen)
		1245	len = svlen - offset;
		1246
		1247	{
		1248	dREQ;
		1249
		1250	req->type = ix;
		1251	req->size = len;
		1252	req->sv2 = SvREFCNT_inc (data);
		1253	req->ptr2 = (char *)svptr + offset;
		1254	req->int1 = flags;
		1255
		1256	REQ_SEND;
		1257	}
		1258	}
		1259
		1260	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1261	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1262	PPCODE:
882	{	1263	{
883	dREQ;	1264	dREQ;
884		1265
…		…
895	{	1276	{
896	dREQ;	1277	dREQ;
897		1278
898	req->type = EIO_GROUP;	1279	req->type = EIO_GROUP;
899		1280
900	eio_submit (req);	1281	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1282	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1283	}
903		1284
904	void	1285	void
905	aio_nop (SV *callback=&PL_sv_undef)	1286	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1287	ALIAS:
…		…
958		1339
959	int	1340	int
960	poll_fileno()	1341	poll_fileno()
961	PROTOTYPE:	1342	PROTOTYPE:
962	CODE:	1343	CODE:
963	RETVAL = respipe [0];	1344	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1345	OUTPUT:
965	RETVAL	1346	RETVAL
966		1347
967	int	1348	int
968	poll_cb(...)	1349	poll_cb(...)
…		…
1004		1385
1005	int	1386	int
1006	nthreads()	1387	nthreads()
1007	PROTOTYPE:	1388	PROTOTYPE:
1008	CODE:	1389	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1390	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1391	OUTPUT:
1013	RETVAL	1392	RETVAL
1014		1393
		1394	int
		1395	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1396	PROTOTYPE: $$$$
		1397	CODE:
		1398	RETVAL = posix_fadvise (fh, offset, length, advice);
		1399	OUTPUT:
		1400	RETVAL
		1401
		1402	ssize_t
		1403	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1404	PROTOTYPE: $$$$
		1405	CODE:
		1406	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1407	OUTPUT:
		1408	RETVAL
		1409
		1410	void
		1411	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1412	PROTOTYPE: $$$$$;$
		1413	PPCODE:
		1414	sv_unmagic (scalar, MMAP_MAGIC);
		1415	{
		1416	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1417	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1418	if (addr == (void *)-1)
		1419	XSRETURN_NO;
		1420
		1421	sv_force_normal (scalar);
		1422
		1423	/* we store the length in mg_obj, as namlen is I32 :/ */
		1424	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1425	->mg_obj = (SV *)length;
		1426
		1427	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1428
		1429	if (!(prot & PROT_WRITE))
		1430	SvREADONLY_on (scalar);
		1431
		1432	if (SvLEN (scalar))
		1433	Safefree (SvPVX (scalar));
		1434
		1435	SvPVX (scalar) = (char *)addr;
		1436	SvCUR_set (scalar, length);
		1437	SvLEN_set (scalar, 0);
		1438	SvPOK_only (scalar);
		1439
		1440	XSRETURN_YES;
		1441	}
		1442
		1443	void
		1444	munmap (SV *scalar)
		1445	PROTOTYPE: $
		1446	CODE:
		1447	sv_unmagic (scalar, MMAP_MAGIC);
		1448
		1449	int
		1450	madvise (SV *scalar, off_t offset, off_t length, IV advice)
		1451	PROTOTYPE: $$$$
		1452	CODE:
		1453	{
		1454	char *addr = SvPV_nolen (scalar) + offset;
		1455
		1456	if (!SvOK (ST (2)))
		1457	length = SvCUR (scalar) - offset;
		1458
		1459	if (addr >= SvEND (scalar) \|\| length <= 0)
		1460	XSRETURN_EMPTY;
		1461
		1462	RETVAL = posix_madvise (addr, length, advice);
		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
1015	void _on_next_submit (SV *cb)	1497	void _on_next_submit (SV *cb)
1016	CODE:	1498	CODE:
1017	SvREFCNT_dec (on_next_submit);	1499	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1501
…		…
1026	CODE:	1508	CODE:
1027	eio_cancel (req);	1509	eio_cancel (req);
1028		1510
1029	void	1511	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1512	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	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
1032	SvREFCNT_dec (req->callback);	1522	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1523	req->callback = SvREFCNT_inc (cb_cv);
		1524	}
		1525	}
1034		1526
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1527	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1528
1037	void	1529	void
1038	add (aio_req grp, ...)	1530	add (aio_req grp, ...)
…		…
1070	AV *av;	1562	AV *av;
1071		1563
1072	grp->errorno = errno;	1564	grp->errorno = errno;
1073		1565
1074	av = newAV ();	1566	av = newAV ();
		1567	av_extend (av, items - 1);
1075		1568
1076	for (i = 1; i < items; ++i )	1569	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1570	av_push (av, newSVsv (ST (i)));
1078		1571
1079	SvREFCNT_dec (grp->sv1);	1572	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1586	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1587	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1588	CODE:
1096	{	1589	{
1097	SvREFCNT_dec (grp->sv2);	1590	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1591	grp->sv2 = newSVsv (callback);
		1592	grp->feed = aio_grp_feed;
1099		1593
1100	if (grp->int2 <= 0)	1594	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1595	grp->int2 = 2;
1102		1596
1103	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 1.121 by root, Tue May 13 18:50:27 2008 UTC vs. Revision 1.170 by root, Wed Aug 4 16:09:36 2010 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.121 by root, Tue May 13 18:50:27 2008 UTC vs.
Revision 1.170 by root, Wed Aug 4 16:09:36 2010 UTC