ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.160 by root, Thu Jan 7 18:25:51 2010 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
21	/* perl namespace pollution */	33	/* perl namespace pollution */
22	#undef VERSION	34	#undef VERSION
23
24	#ifdef _WIN32
25
26	# define EIO_STRUCT_DIRENT Direntry_t
27	# undef malloc
28	# undef free
29
30	// perl overrides all those nice win32 functions
31	# undef open
32	# undef read
33	# undef write
34	# undef send
35	# undef recv
36	# undef stat
37	# undef fstat
38	# define lstat stat
39	# undef truncate
40	# undef ftruncate
41	# undef open
42	# undef close
43	# undef unlink
44	# undef rmdir
45	# undef rename
46	# undef lseek
47
48	# define chown(a,b,c) (errno = ENOSYS, -1)
49	# define fchown(a,b,c) (errno = ENOSYS, -1)
50	# define fchmod(a,b) (errno = ENOSYS, -1)
51	# define symlink(a,b) (errno = ENOSYS, -1)
52	# define readlink(a,b,c) (errno = ENOSYS, -1)
53	# define mknod(a,b,c) (errno = ENOSYS, -1)
54	# define truncate(a,b) (errno = ENOSYS, -1)
55	# define ftruncate(fd,o) chsize ((fd), (o))
56	# define fsync(fd) _commit (fd)
57	# define opendir(fd) (errno = ENOSYS, 0)
58	# define readdir(fd) (errno = ENOSYS, -1)
59	# define closedir(fd) (errno = ENOSYS, -1)
60	# define mkdir(a,b) mkdir (a)
61
62	#else
63
64	# include <sys/time.h>
65	# include <sys/select.h>
66	# include <unistd.h>
67	# include <utime.h>
68	# include <signal.h>
69	# define EIO_STRUCT_DIRENT struct dirent
70
71	#endif
72		35
73	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
74	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
75	#undef readdir	38	#undef readdir
76	#undef opendir	39	#undef opendir
77	#undef closedir	40	#undef closedir
78		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
79	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
80		78
81	/* use NV for 32 bit perls as it allows larger offsets */
82	#if IVSIZE >= 8
83	# define VAL64 IV
84	# define SvVAL64 SvIV
85	# define newSVval64 newSViv
86	#else	79	#else
87	# define VAL64 NV	80
88	# define SvVAL64 SvNV	81	#include <sys/time.h>
89	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
90	#endif	89	#endif
91		90
92	/*****************************************************************************/	91	/*****************************************************************************/
93		92
94	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
104		103
105	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
108		107
109	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110		109
111	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
112	SV *callback; \	111	SV *callback; \
113	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
114	STRLEN stroffset; \	114	STRLEN stroffset; \
115	SV *self;	115	SV *self;
116		116
117	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
118		118
		119	#include "libeio/config.h"
119	#include "libeio/eio.h"	120	#include "libeio/eio.h"
120
121	#ifndef POSIX_FADV_NORMAL
122	# define POSIX_FADV_NORMAL 0
123	# define NO_FADVISE 1
124	#endif
125
126	#ifndef POSIX_FADV_SEQUENTIAL
127	# define POSIX_FADV_SEQUENTIAL 0
128	#endif
129
130	#ifndef POSIX_FADV_RANDOM
131	# define POSIX_FADV_RANDOM 0
132	#endif
133
134	#ifndef POSIX_FADV_NOREUSE
135	# define POSIX_FADV_NOREUSE 0
136	#endif
137
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141
142	#ifndef POSIX_FADV_DONTNEED
143	# define POSIX_FADV_DONTNEED 0
144	#endif
145
146	#ifndef ST_NODEV
147	# define ST_NODEV 0
148	#endif
149
150	#ifndef ST_NOEXEC
151	# define ST_NOEXEC 0
152	#endif
153
154	#ifndef ST_SYNCHRONOUS
155	# define ST_SYNCHRONOUS 0
156	#endif
157
158	#ifndef ST_MANDLOCK
159	# define ST_MANDLOCK 0
160	#endif
161
162	#ifndef ST_WRITE
163	# define ST_WRITE 0
164	#endif
165
166	#ifndef ST_APPEND
167	# define ST_APPEND 0
168	#endif
169
170	#ifndef ST_IMMUTABLE
171	# define ST_IMMUTABLE 0
172	#endif
173
174	#ifndef ST_NOATIME
175	# define ST_NOATIME 0
176	#endif
177
178	#ifndef ST_NODIRATIME
179	# define ST_NODIRATIME 0
180	#endif
181
182	#ifndef ST_RELATIME
183	# define ST_RELATIME 0
184	#endif
185		121
186	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
187	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
188	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
189	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
190		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (!fiemap->fm_mapped_extents)
		200	break; /* if file has no segments, we are done */
		201
		202	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		203	break; /* autosizing successful, we are done */
		204
		205	fiemap->fm_flags = req->int2;
		206	fiemap->fm_extent_count = 0;
		207
		208	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		209	return;
		210
		211	count = fiemap->fm_mapped_extents;
		212
		213	free (fiemap);
		214	}
		215
		216	req->result = 0;
		217
		218	#else
		219	errno = ENOSYS;
		220	#endif
		221	}
		222
		223	/*****************************************************************************/
		224
191	enum {	225	enum {
192	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	226	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
193	};	227	};
194		228
195	#include "libeio/eio.c"
196
197	typedef eio_req *aio_req;	229	typedef eio_req *aio_req;
198	typedef eio_req *aio_req_ornot;	230	typedef eio_req *aio_req_ornot;
		231	typedef eio_wd aio_wd;
199		232
200	static SV *on_next_submit;	233	static SV *on_next_submit;
201	static int next_pri = EIO_PRI_DEFAULT;	234	static int next_pri = EIO_PRI_DEFAULT;
202	static int max_outstanding;	235	static int max_outstanding;
203		236
204	static s_epipe respipe;	237	static s_epipe respipe;
205		238
206	static void req_destroy (aio_req req);	239	static void req_destroy (aio_req req);
207	static void req_cancel (aio_req req);	240	static void req_cancel (aio_req req);
208		241
209	static void want_poll (void)	242	static void
		243	want_poll (void)
210	{	244	{
211	/* write a dummy byte to the pipe so fh becomes ready */	245	/* write a dummy byte to the pipe so fh becomes ready */
212	s_epipe_signal (&respipe);	246	s_epipe_signal (&respipe);
213	}	247	}
214		248
215	static void done_poll (void)	249	static void
		250	done_poll (void)
216	{	251	{
217	/* read any signals sent by the worker threads */	252	/* read any signals sent by the worker threads */
218	s_epipe_drain (&respipe);	253	s_epipe_drain (&respipe);
219	}	254	}
220		255
221	/* must be called at most once */	256	/* must be called at most once */
		257	static SV *
222	static SV *req_sv (aio_req req, HV *stash)	258	req_sv (aio_req req, HV *stash)
223	{	259	{
224	if (!req->self)	260	if (!req->self)
225	{	261	{
226	req->self = (SV *)newHV ();	262	req->self = (SV *)newHV ();
227	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	263	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
228	}	264	}
229		265
230	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	266	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
231	}	267	}
232		268
233	static aio_req SvAIO_REQ (SV *sv)	269	static SV *
		270	newSVaio_wd (aio_wd wd)
		271	{
		272	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		273	}
		274
		275	static aio_req
		276	SvAIO_REQ (SV *sv)
234	{	277	{
235	MAGIC *mg;	278	MAGIC *mg;
236		279
237	if (!SvROK (sv)	280	if (!SvROK (sv)
		281	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
238	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	282	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
239	&& SvSTASH (SvRV (sv)) != aio_req_stash	283	&& SvSTASH (SvRV (sv)) != aio_req_stash
240	&& !sv_derived_from (sv, "IO::AIO::REQ")))	284	&& !sv_derived_from (sv, "IO::AIO::REQ")))
241	croak ("object of class IO::AIO::REQ expected");	285	croak ("object of class IO::AIO::REQ expected");
242		286
243	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	287	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
244		288
245	return mg ? (aio_req)mg->mg_ptr : 0;	289	return mg ? (aio_req)mg->mg_ptr : 0;
246	}	290	}
247		291
		292	static aio_wd
		293	SvAIO_WD (SV *sv)
		294	{
		295	if (!SvROK (sv)
		296	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		297	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		298	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		299
		300	return (aio_wd)(long)SvIVX (SvRV (sv));
		301	}
		302
		303	static void
248	static void aio_grp_feed (aio_req grp)	304	aio_grp_feed (aio_req grp)
249	{	305	{
250	if (grp->sv2 && SvOK (grp->sv2))	306	if (grp->sv2 && SvOK (grp->sv2))
251	{	307	{
252	dSP;	308	dSP;
253		309
…		…
261	FREETMPS;	317	FREETMPS;
262	LEAVE;	318	LEAVE;
263	}	319	}
264	}	320	}
265		321
		322	static void
266	static void req_submit (eio_req *req)	323	req_submit (eio_req *req)
267	{	324	{
268	eio_submit (req);	325	eio_submit (req);
269		326
270	if (expect_false (on_next_submit))	327	if (expect_false (on_next_submit))
271	{	328	{
…		…
278	PUTBACK;	335	PUTBACK;
279	call_sv (cb, G_DISCARD | G_EVAL);	336	call_sv (cb, G_DISCARD | G_EVAL);
280	}	337	}
281	}	338	}
282		339
		340	static int
283	static int req_invoke (eio_req *req)	341	req_invoke (eio_req *req)
284	{	342	{
285	dSP;
286
287	if (req->flags & FLAG_SV2_RO_OFF)	343	if (req->flags & FLAG_SV2_RO_OFF)
288	SvREADONLY_off (req->sv2);	344	SvREADONLY_off (req->sv2);
289		345
290	if (!EIO_CANCELLED (req) && req->callback)	346	if (!EIO_CANCELLED (req) && req->callback)
291	{	347	{
		348	dSP;
		349	static SV *sv_result_cache; /* caches the result integer SV */
		350	SV *sv_result;
		351
292	ENTER;	352	ENTER;
293	SAVETMPS;	353	SAVETMPS;
294	PUSHMARK (SP);	354	PUSHMARK (SP);
295	EXTEND (SP, 1);	355	EXTEND (SP, 1);
296		356
		357	/* do not recreate the result IV from scratch each time */
		358	if (expect_true (sv_result_cache))
		359	{
		360	sv_result = sv_result_cache; sv_result_cache = 0;
		361	SvIV_set (sv_result, req->result);
		362	SvIOK_only (sv_result);
		363	}
		364	else
		365	{
		366	sv_result = newSViv (req->result);
		367	SvREADONLY_on (sv_result);
		368	}
		369
297	switch (req->type)	370	switch (req->type)
298	{	371	{
		372	case EIO_WD_OPEN:
		373	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		374	break;
		375
299	case EIO_READDIR:	376	case EIO_READDIR:
300	{	377	{
301	SV *rv = &PL_sv_undef;	378	SV *rv = &PL_sv_undef;
302		379
303	if (req->result >= 0)	380	if (req->result >= 0)
…		…
391	case EIO_STATVFS:	468	case EIO_STATVFS:
392	case EIO_FSTATVFS:	469	case EIO_FSTATVFS:
393	{	470	{
394	SV *rv = &PL_sv_undef;	471	SV *rv = &PL_sv_undef;
395		472
		473	#ifndef _WIN32
396	if (req->result >= 0)	474	if (req->result >= 0)
397	{	475	{
398	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	476	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
399	HV *hv = newHV ();	477	HV *hv = newHV ();
400		478
…		…
410	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	488	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
411	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	489	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
412	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	490	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
413	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	491	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
414	}	492	}
		493	#endif
415		494
416	PUSHs (rv);	495	PUSHs (rv);
417	}	496	}
418		497
419	break;	498	break;
…		…
435	case EIO_NOP:	514	case EIO_NOP:
436	case EIO_BUSY:	515	case EIO_BUSY:
437	break;	516	break;
438		517
439	case EIO_READLINK:	518	case EIO_READLINK:
		519	case EIO_REALPATH:
440	if (req->result > 0)	520	if (req->result > 0)
441	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	521	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
442	break;	522	break;
443		523
444	case EIO_STAT:	524	case EIO_STAT:
445	case EIO_LSTAT:	525	case EIO_LSTAT:
446	case EIO_FSTAT:	526	case EIO_FSTAT:
447	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	527	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		528
448	PL_laststatval = req->result;	529	if (!(PL_laststatval = req->result))
		530	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
449	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	531	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
450	PUSHs (sv_2mortal (newSViv (req->result)));	532
		533	PUSHs (sv_result);
		534	break;
		535
		536	case EIO_SEEK:
		537	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
451	break;	538	break;
452		539
453	case EIO_READ:	540	case EIO_READ:
454	{	541	{
455	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	542	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
456	*SvEND (req->sv2) = 0;	543	*SvEND (req->sv2) = 0;
457	SvPOK_only (req->sv2);	544	SvPOK_only (req->sv2);
458	SvSETMAGIC (req->sv2);	545	SvSETMAGIC (req->sv2);
459	PUSHs (sv_2mortal (newSViv (req->result)));	546	PUSHs (sv_result);
460	}	547	}
461	break;	548	break;
462		549
463	case EIO_DUP2:	550	case EIO_CUSTOM:
		551	if (req->feed == fiemap)
		552	{
		553	#if HAVE_FIEMAP
		554	if (!req->result)
		555	{
		556	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		557
		558	if (fiemap->fm_extent_count)
		559	{
		560	AV *av = newAV ();
		561	int i;
		562
		563	while (fiemap->fm_mapped_extents)
		564	{
		565	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		566	AV *ext_av = newAV ();
		567
		568	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		569	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		570	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		571	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		572
		573	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		574	}
		575
		576	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		577	}
		578	else
		579	{
		580	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		581	PUSHs (sv_result);
		582	}
		583	}
		584	#endif
		585	}
		586	else
		587	PUSHs (sv_result);
		588	break;
		589
		590	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
464	if (req->result > 0)	591	if (req->result > 0)
465	req->result = 0;	592	SvIV_set (sv_result, 0);
466	/* FALLTHROUGH */	593	/* FALLTHROUGH */
467		594
468	default:	595	default:
469	PUSHs (sv_2mortal (newSViv (req->result)));	596	PUSHs (sv_result);
470	break;	597	break;
471	}	598	}
472		599
473	errno = req->errorno;	600	errno = req->errorno;
474		601
475	PUTBACK;	602	PUTBACK;
476	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	603	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
477	SPAGAIN;	604	SPAGAIN;
478		605
		606	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		607	SvREFCNT_dec (sv_result);
		608	else
		609	sv_result_cache = sv_result;
		610
479	FREETMPS;	611	FREETMPS;
480	LEAVE;	612	LEAVE;
481		613
482	PUTBACK;	614	PUTBACK;
483	}	615	}
484		616
485	return !!SvTRUE (ERRSV);	617	return !!SvTRUE (ERRSV);
486	}	618	}
487		619
		620	static void
488	static void req_destroy (aio_req req)	621	req_destroy (aio_req req)
489	{	622	{
490	if (req->self)	623	if (req->self)
491	{	624	{
492	sv_unmagic (req->self, PERL_MAGIC_ext);	625	sv_unmagic (req->self, PERL_MAGIC_ext);
493	SvREFCNT_dec (req->self);	626	SvREFCNT_dec (req->self);
494	}	627	}
495		628
496	SvREFCNT_dec (req->sv1);	629	SvREFCNT_dec (req->sv1);
497	SvREFCNT_dec (req->sv2);	630	SvREFCNT_dec (req->sv2);
		631	SvREFCNT_dec (req->sv3);
		632	SvREFCNT_dec (req->sv4);
498	SvREFCNT_dec (req->callback);	633	SvREFCNT_dec (req->callback);
499		634
500	Safefree (req);	635	free (req);
501	}	636	}
502		637
		638	static void
503	static void req_cancel_subs (aio_req grp)	639	req_cancel_subs (aio_req grp)
504	{	640	{
505	aio_req sub;
506
507	if (grp->type != EIO_GROUP)	641	if (grp->type != EIO_GROUP)
508	return;	642	return;
509		643
510	SvREFCNT_dec (grp->sv2);	644	SvREFCNT_dec (grp->sv2);
511	grp->sv2 = 0;	645	grp->sv2 = 0;
512		646
513	eio_grp_cancel (grp);	647	eio_grp_cancel (grp);
514	}	648	}
515		649
516	static void	650	static void ecb_cold
517	create_respipe (void)	651	create_respipe (void)
518	{	652	{
519	if (s_epipe_renew (&respipe))	653	if (s_epipe_renew (&respipe))
520	croak ("IO::AIO: unable to initialize result pipe");	654	croak ("IO::AIO: unable to initialize result pipe");
521	}	655	}
522		656
523	static void poll_wait (void)	657	static void
		658	poll_wait (void)
524	{	659	{
525	while (eio_nreqs ())	660	while (eio_nreqs ())
526	{	661	{
527	int size;	662	int size;
528		663
…		…
537		672
538	s_epipe_wait (&respipe);	673	s_epipe_wait (&respipe);
539	}	674	}
540	}	675	}
541		676
542	static int poll_cb (void)	677	static int
		678	poll_cb (void)
543	{	679	{
544	for (;;)	680	for (;;)
545	{	681	{
546	int res = eio_poll ();	682	int res = eio_poll ();
547		683
…		…
553		689
554	poll_wait ();	690	poll_wait ();
555	}	691	}
556	}	692	}
557		693
558	static void atfork_child (void)	694	static void ecb_cold
		695	reinit (void)
559	{	696	{
560	create_respipe ();	697	create_respipe ();
		698
		699	if (eio_init (want_poll, done_poll) < 0)
		700	croak ("IO::AIO: unable to initialise eio library");
561	}	701	}
		702
		703	/*****************************************************************************/
		704
		705	#if !_POSIX_MAPPED_FILES
		706	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		707	# define munmap(addr,length) EIO_ENOSYS ()
		708	#endif
		709
		710	#if !_POSIX_MEMORY_PROTECTION
		711	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		712	# define PROT_NONE 0
		713	# define PROT_WRITE 0
		714	# define MAP_PRIVATE 0
		715	# define MAP_SHARED 0
		716	# define MAP_FIXED 0
		717	#endif
		718
		719	#define MMAP_MAGIC PERL_MAGIC_ext
		720
		721	static int ecb_cold
		722	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		723	{
		724	int old_errno = errno;
		725	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		726	errno = old_errno;
		727
		728	mg->mg_obj = 0; /* just in case */
		729
		730	SvREADONLY_off (sv);
		731
		732	if (SvPVX (sv) != mg->mg_ptr)
		733	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		734
		735	SvCUR_set (sv, 0);
		736	SvPVX (sv) = 0;
		737	SvOK_off (sv);
		738
		739	return 0;
		740	}
		741
		742	static MGVTBL mmap_vtbl = {
		743	0, 0, 0, 0, mmap_free
		744	};
		745
		746	/*****************************************************************************/
562		747
563	static SV *	748	static SV *
564	get_cb (SV *cb_sv)	749	get_cb (SV *cb_sv)
565	{	750	{
566	SvGETMAGIC (cb_sv);	751	SvGETMAGIC (cb_sv);
567	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	752	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
568	}	753	}
569		754
		755	static aio_req ecb_noinline
		756	dreq (SV *callback)
		757	{
		758	SV *cb_cv;
		759	aio_req req;
		760	int req_pri = next_pri;
		761	next_pri = EIO_PRI_DEFAULT;
		762
		763	cb_cv = get_cb (callback);
		764
		765	req = calloc (sizeof (*req), 1);
		766	if (!req)
		767	croak ("out of memory during eio_req allocation");
		768
		769	req->callback = SvREFCNT_inc (cb_cv);
		770	req->pri = req_pri;
		771
		772	return req;
		773	}
		774
570	#define dREQ \	775	#define dREQ \
571	SV *cb_cv; \	776	aio_req req = dreq (callback); \
572	aio_req req; \
573	int req_pri = next_pri; \
574	next_pri = EIO_PRI_DEFAULT; \
575	\
576	cb_cv = get_cb (callback); \
577	\
578	Newz (0, req, 1, eio_req); \
579	if (!req) \
580	croak ("out of memory during eio_req allocation"); \
581	\
582	req->callback = SvREFCNT_inc (cb_cv); \
583	req->pri = req_pri
584		777
585	#define REQ_SEND \	778	#define REQ_SEND \
586	PUTBACK; \	779	PUTBACK; \
587	req_submit (req); \	780	req_submit (req); \
588	SPAGAIN; \	781	SPAGAIN; \
589	\	782	\
590	if (GIMME_V != G_VOID) \	783	if (GIMME_V != G_VOID) \
591	XPUSHs (req_sv (req, aio_req_stash));	784	XPUSHs (req_sv (req, aio_req_stash));
592		785
		786	ecb_inline void
		787	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		788	{
		789	if (expect_false (SvROK (path)))
		790	{
		791	SV *rv = SvRV (path);
		792	SV *wdob;
		793
		794	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		795	{
		796	path = AvARRAY (rv)[1];
		797	wdob = AvARRAY (rv)[0];
		798
		799	if (SvOK (wdob))
		800	{
		801	*wd = SvAIO_WD (wdob);
		802	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		803	}
		804	else
		805	*wd = EIO_INVALID_WD;
		806	}
		807	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		808	{
		809	*wd = (aio_wd)(long)SvIVX (rv);
		810	*wdsv = SvREFCNT_inc_NN (rv);
		811	*ptr = ".";
		812	return; /* path set to "." */
		813	}
		814	else
		815	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		816	}
		817
		818	*pathsv = newSVsv (path);
		819	*ptr = SvPVbyte_nolen (*pathsv);
		820	}
		821
		822	static void ecb_noinline
		823	req_set_path1 (aio_req req, SV *path)
		824	{
		825	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		826	}
		827
		828	static void ecb_noinline
		829	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		830	{
		831	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		832
		833	switch (SvTYPE (rv))
		834	{
		835	case SVt_PVIO:
		836	case SVt_PVLV:
		837	case SVt_PVGV:
		838	req->type = type_fh;
		839	req->sv1 = newSVsv (fh_or_path);
		840	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		841	break;
		842
		843	default:
		844	req->type = type_path;
		845	req_set_path1 (req, fh_or_path);
		846	break;
		847	}
		848	}
		849
		850	XS(boot_IO__AIO) ecb_cold;
		851
593	MODULE = IO::AIO PACKAGE = IO::AIO	852	MODULE = IO::AIO PACKAGE = IO::AIO
594		853
595	PROTOTYPES: ENABLE	854	PROTOTYPES: ENABLE
596		855
597	BOOT:	856	BOOT:
598	{	857	{
599	static const struct {	858	static const struct {
600	const char *name;	859	const char *name;
601	IV iv;	860	IV iv;
602	} *civ, const_iv[] = {	861	} *civ, const_iv[] = {
603	# define const_iv(name, value) { # name, (IV) value },	862	# define const_niv(name, value) { # name, (IV) value },
		863	# define const_iv(name) { # name, (IV) name },
604	# define const_eio(name) { # name, (IV) EIO_ ## name },	864	# define const_eio(name) { # name, (IV) EIO_ ## name },
605	const_iv (EXDEV , EXDEV)	865
		866	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		867
606	const_iv (ENOSYS , ENOSYS)	868	const_iv (ENOSYS)
		869	const_iv (EXDEV)
		870	const_iv (EBADR)
		871
607	const_iv (O_RDONLY, O_RDONLY)	872	const_iv (O_RDONLY)
608	const_iv (O_WRONLY, O_WRONLY)	873	const_iv (O_WRONLY)
		874	const_iv (O_RDWR)
609	const_iv (O_CREAT , O_CREAT)	875	const_iv (O_CREAT)
610	const_iv (O_TRUNC , O_TRUNC)	876	const_iv (O_TRUNC)
611	#ifndef _WIN32	877	const_iv (O_EXCL)
		878	const_iv (O_APPEND)
		879
		880	const_iv (O_ASYNC)
		881	const_iv (O_DIRECT)
		882	const_iv (O_NOATIME)
		883
		884	const_iv (O_CLOEXEC)
		885	const_iv (O_NOCTTY)
		886	const_iv (O_NOFOLLOW)
		887	const_iv (O_NONBLOCK)
		888	const_iv (O_EXEC)
		889	const_iv (O_SEARCH)
		890	const_iv (O_DIRECTORY)
		891	const_iv (O_DSYNC)
		892	const_iv (O_RSYNC)
		893	const_iv (O_SYNC)
		894	const_iv (O_TTY_INIT)
		895
612	const_iv (S_IFIFO , S_IFIFO)	896	const_iv (S_IFIFO)
613	#endif	897	const_iv (S_IFCHR)
		898	const_iv (S_IFBLK)
		899	const_iv (S_IFLNK)
		900	const_iv (S_IFREG)
		901	const_iv (S_IFDIR)
		902	const_iv (S_IFWHT)
		903	const_iv (S_IFSOCK)
		904	const_iv (S_IFMT)
		905
614	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	906	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
615	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	907	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
616	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	908	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
617	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	909	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
618	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	910	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
619	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	911	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
620		912
621	const_iv (ST_RDONLY , ST_RDONLY)	913	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
622	const_iv (ST_NOSUID , ST_NOSUID)	914	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
623	const_iv (ST_NODEV , ST_NODEV)	915	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
624	const_iv (ST_NOEXEC , ST_NOEXEC)	916	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		917	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		918
		919	const_iv (ST_RDONLY)
		920	const_iv (ST_NOSUID)
		921	const_iv (ST_NODEV)
		922	const_iv (ST_NOEXEC)
625	const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS)	923	const_iv (ST_SYNCHRONOUS)
626	const_iv (ST_MANDLOCK , ST_MANDLOCK)	924	const_iv (ST_MANDLOCK)
627	const_iv (ST_WRITE , ST_WRITE)	925	const_iv (ST_WRITE)
628	const_iv (ST_APPEND , ST_APPEND)	926	const_iv (ST_APPEND)
629	const_iv (ST_IMMUTABLE , ST_IMMUTABLE)	927	const_iv (ST_IMMUTABLE)
630	const_iv (ST_NOATIME , ST_NOATIME)	928	const_iv (ST_NOATIME)
631	const_iv (ST_NODIRATIME , ST_NODIRATIME)	929	const_iv (ST_NODIRATIME)
632	const_iv (ST_RELATIME , ST_RELATIME)	930	const_iv (ST_RELATIME)
		931
		932	const_iv (PROT_NONE)
		933	const_iv (PROT_EXEC)
		934	const_iv (PROT_READ)
		935	const_iv (PROT_WRITE)
		936
		937	/*const_iv (MAP_FIXED)*/
		938	const_iv (MAP_PRIVATE)
		939	const_iv (MAP_SHARED)
		940	const_iv (MAP_ANONYMOUS)
		941
		942	/* linuxish */
		943	const_iv (MAP_HUGETLB)
		944	const_iv (MAP_LOCKED)
		945	const_iv (MAP_NORESERVE)
		946	const_iv (MAP_POPULATE)
		947	const_iv (MAP_NONBLOCK)
		948
		949	const_iv (FIEMAP_FLAG_SYNC)
		950	const_iv (FIEMAP_FLAG_XATTR)
		951	const_iv (FIEMAP_FLAGS_COMPAT)
		952	const_iv (FIEMAP_EXTENT_LAST)
		953	const_iv (FIEMAP_EXTENT_UNKNOWN)
		954	const_iv (FIEMAP_EXTENT_DELALLOC)
		955	const_iv (FIEMAP_EXTENT_ENCODED)
		956	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		957	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		958	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		959	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		960	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		961	const_iv (FIEMAP_EXTENT_MERGED)
		962	const_iv (FIEMAP_EXTENT_SHARED)
		963
		964	const_iv (SPLICE_F_MOVE)
		965	const_iv (SPLICE_F_NONBLOCK)
		966	const_iv (SPLICE_F_MORE)
		967	const_iv (SPLICE_F_GIFT)
		968
		969	const_iv (SEEK_DATA)
		970	const_iv (SEEK_HOLE)
		971
		972	/* libeio constants */
		973	const_eio (SEEK_SET)
		974	const_eio (SEEK_CUR)
		975	const_eio (SEEK_END)
		976
		977	const_eio (MCL_FUTURE)
		978	const_eio (MCL_CURRENT)
633		979
634	const_eio (MS_ASYNC)	980	const_eio (MS_ASYNC)
635	const_eio (MS_INVALIDATE)	981	const_eio (MS_INVALIDATE)
636	const_eio (MS_SYNC)	982	const_eio (MS_SYNC)
637		983
638	const_eio (MT_MODIFY)	984	const_eio (MT_MODIFY)
639		985
640	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	986	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
641	const_eio (SYNC_FILE_RANGE_WRITE)	987	const_eio (SYNC_FILE_RANGE_WRITE)
642	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	988	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		989
		990	const_eio (FALLOC_FL_KEEP_SIZE)
		991	const_eio (FALLOC_FL_PUNCH_HOLE)
643		992
644	const_eio (READDIR_DENTS)	993	const_eio (READDIR_DENTS)
645	const_eio (READDIR_DIRS_FIRST)	994	const_eio (READDIR_DIRS_FIRST)
646	const_eio (READDIR_STAT_ORDER)	995	const_eio (READDIR_STAT_ORDER)
647	const_eio (READDIR_FOUND_UNKNOWN)	996	const_eio (READDIR_FOUND_UNKNOWN)
…		…
658	};	1007	};
659		1008
660	aio_stash = gv_stashpv ("IO::AIO" , 1);	1009	aio_stash = gv_stashpv ("IO::AIO" , 1);
661	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1010	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
662	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1011	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1012	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
663		1013
664	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1014	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
665	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1015	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
666		1016
667	create_respipe ();	1017	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
668		1018
669	if (eio_init (want_poll, done_poll) < 0)	1019	reinit ();
670	croak ("IO::AIO: unable to initialise eio library");
671
672	/* atfork child called in fifo order, so before eio's handler */
673	X_THREAD_ATFORK (0, 0, atfork_child);
674	}	1020	}
675		1021
676	void	1022	void
		1023	reinit ()
		1024	PROTOTYPE:
		1025
		1026	void
677	max_poll_reqs (int nreqs)	1027	max_poll_reqs (unsigned int nreqs)
678	PROTOTYPE: $	1028	PROTOTYPE: $
679	CODE:	1029	CODE:
680	eio_set_max_poll_reqs (nreqs);	1030	eio_set_max_poll_reqs (nreqs);
681		1031
682	void	1032	void
…		…
684	PROTOTYPE: $	1034	PROTOTYPE: $
685	CODE:	1035	CODE:
686	eio_set_max_poll_time (nseconds);	1036	eio_set_max_poll_time (nseconds);
687		1037
688	void	1038	void
689	min_parallel (int nthreads)	1039	min_parallel (unsigned int nthreads)
690	PROTOTYPE: $	1040	PROTOTYPE: $
691	CODE:	1041	CODE:
692	eio_set_min_parallel (nthreads);	1042	eio_set_min_parallel (nthreads);
693		1043
694	void	1044	void
695	max_parallel (int nthreads)	1045	max_parallel (unsigned int nthreads)
696	PROTOTYPE: $	1046	PROTOTYPE: $
697	CODE:	1047	CODE:
698	eio_set_max_parallel (nthreads);	1048	eio_set_max_parallel (nthreads);
699		1049
700	void	1050	void
701	max_idle (int nthreads)	1051	max_idle (unsigned int nthreads)
702	PROTOTYPE: $	1052	PROTOTYPE: $
703	CODE:	1053	CODE:
704	eio_set_max_idle (nthreads);	1054	eio_set_max_idle (nthreads);
705		1055
706	void	1056	void
		1057	idle_timeout (unsigned int seconds)
		1058	PROTOTYPE: $
		1059	CODE:
		1060	eio_set_idle_timeout (seconds);
		1061
		1062	void
707	max_outstanding (int maxreqs)	1063	max_outstanding (unsigned int maxreqs)
708	PROTOTYPE: $	1064	PROTOTYPE: $
709	CODE:	1065	CODE:
710	max_outstanding = maxreqs;	1066	max_outstanding = maxreqs;
711		1067
712	void	1068	void
		1069	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1070	PPCODE:
		1071	{
		1072	dREQ;
		1073
		1074	req->type = EIO_WD_OPEN;
		1075	req_set_path1 (req, pathname);
		1076
		1077	REQ_SEND;
		1078	}
		1079
		1080	void
713	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1081	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
714	PROTOTYPE: $$$;$
715	PPCODE:	1082	PPCODE:
716	{	1083	{
717	dREQ;	1084	dREQ;
718		1085
719	req->type = EIO_OPEN;	1086	req->type = EIO_OPEN;
720	req->sv1 = newSVsv (pathname);	1087	req_set_path1 (req, pathname);
721	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	req->int1 = flags;	1088	req->int1 = flags;
723	req->int2 = mode;	1089	req->int2 = mode;
724		1090
725	REQ_SEND;	1091	REQ_SEND;
726	}	1092	}
727		1093
728	void	1094	void
729	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1095	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
730	PROTOTYPE: $;$
731	ALIAS:	1096	ALIAS:
732	aio_fsync = EIO_FSYNC	1097	aio_fsync = EIO_FSYNC
733	aio_fdatasync = EIO_FDATASYNC	1098	aio_fdatasync = EIO_FDATASYNC
		1099	aio_syncfs = EIO_SYNCFS
734	PPCODE:	1100	PPCODE:
735	{	1101	{
736	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
737	dREQ;	1103	dREQ;
738		1104
739	req->type = ix;	1105	req->type = ix;
740	req->sv1 = newSVsv (fh);	1106	req->sv1 = newSVsv (fh);
741	req->int1 = fd;	1107	req->int1 = fd;
742		1108
743	REQ_SEND (req);	1109	REQ_SEND;
744	}	1110	}
745		1111
746	void	1112	void
747	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1113	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
748	PROTOTYPE: $$$$;$
749	PPCODE:	1114	PPCODE:
750	{	1115	{
751	int fd = s_fileno_croak (fh, 0);	1116	int fd = s_fileno_croak (fh, 0);
752	dREQ;	1117	dREQ;
753		1118
…		…
756	req->int1 = fd;	1121	req->int1 = fd;
757	req->offs = offset;	1122	req->offs = offset;
758	req->size = nbytes;	1123	req->size = nbytes;
759	req->int2 = flags;	1124	req->int2 = flags;
760		1125
761	REQ_SEND (req);	1126	REQ_SEND;
762	}	1127	}
763		1128
764	void	1129	void
765	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1130	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
766	PROTOTYPE: $;$
767	PPCODE:	1131	PPCODE:
768	{	1132	{
769	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
770	int fd = s_fileno_croak (fh, 0);	1133	int fd = s_fileno_croak (fh, 0);
771	dREQ;	1134	dREQ;
772		1135
773	if (close_pipe < 0)	1136	req->type = EIO_FALLOCATE;
		1137	req->sv1 = newSVsv (fh);
		1138	req->int1 = fd;
		1139	req->int2 = mode;
		1140	req->offs = offset;
		1141	req->size = len;
		1142
		1143	REQ_SEND;
		1144	}
		1145
		1146	void
		1147	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1148	PPCODE:
		1149	{
		1150	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1151	int fd = s_fileno_croak (fh, 0);
		1152	dREQ;
		1153
		1154	if (expect_false (close_fd < 0))
774	{	1155	{
775	int pipefd [2];	1156	int pipefd [2];
776		1157
		1158	if (
		1159	#ifdef _WIN32
		1160	_pipe (pipefd, 1, _O_BINARY) < 0
		1161	#else
777	if (pipe (pipefd) < 0	1162	pipe (pipefd) < 0
778	|| close (pipefd [1]) < 0
779	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1163	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1164	#endif
		1165	|| close (pipefd [1]) < 0
		1166	)
780	abort (); /*D*/	1167	abort (); /*D*/
781		1168
782	close_pipe = pipefd [0];	1169	close_fd = pipefd [0];
783	}	1170	}
784		1171
785	req->type = EIO_DUP2;	1172	req->type = EIO_DUP2;
786	req->int1 = close_pipe;	1173	req->int1 = close_fd;
787	req->sv2 = newSVsv (fh);	1174	req->sv2 = newSVsv (fh);
788	req->int2 = fd;	1175	req->int2 = fd;
789		1176
790	REQ_SEND (req);	1177	REQ_SEND;
		1178	}
		1179
		1180	void
		1181	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1182	PPCODE:
		1183	{
		1184	int fd = s_fileno_croak (fh, 0);
		1185	dREQ;
		1186
		1187	req->type = EIO_SEEK;
		1188	req->sv1 = newSVsv (fh);
		1189	req->int1 = fd;
		1190	req->offs = SvVAL64 (offset);
		1191	req->int2 = whence;
		1192
		1193	REQ_SEND;
791	}	1194	}
792		1195
793	void	1196	void
794	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
795	ALIAS:	1198	ALIAS:
796	aio_read = EIO_READ	1199	aio_read = EIO_READ
797	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
798	PROTOTYPE: $$$$$;$
799	PPCODE:	1201	PPCODE:
800	{	1202	{
801	STRLEN svlen;	1203	STRLEN svlen;
802	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
803	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
…		…
817	}	1219	}
818	else	1220	else
819	{	1221	{
820	/* read: check type and grow scalar as necessary */	1222	/* read: check type and grow scalar as necessary */
821	SvUPGRADE (data, SVt_PV);	1223	SvUPGRADE (data, SVt_PV);
		1224	if (SvLEN (data) >= SvCUR (data))
822	svptr = SvGROW (data, len + dataoffset + 1);	1225	svptr = SvGROW (data, len + dataoffset + 1);
		1226	else if (SvCUR (data) < len + dataoffset)
		1227	croak ("length + dataoffset outside of scalar, and cannot grow");
823	}	1228	}
824		1229
825	{	1230	{
826	dREQ;	1231	dREQ;
827		1232
…		…
843	REQ_SEND;	1248	REQ_SEND;
844	}	1249	}
845	}	1250	}
846		1251
847	void	1252	void
848	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1253	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
849	PROTOTYPE: $$;$	1254	ALIAS:
		1255	aio_readlink = EIO_READLINK
		1256	aio_realpath = EIO_REALPATH
850	PPCODE:	1257	PPCODE:
851	{	1258	{
852	SV *data;
853	dREQ;	1259	dREQ;
854		1260
855	req->type = EIO_READLINK;	1261	req->type = ix;
856	req->sv1 = newSVsv (path);	1262	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858		1263
859	REQ_SEND;	1264	REQ_SEND;
860	}	1265	}
861		1266
862	void	1267	void
863	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1268	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
864	PROTOTYPE: $$$$;$
865	PPCODE:	1269	PPCODE:
866	{	1270	{
867	int ifd = s_fileno_croak (in_fh , 0);	1271	int ifd = s_fileno_croak (in_fh , 0);
868	int ofd = s_fileno_croak (out_fh, 1);	1272	int ofd = s_fileno_croak (out_fh, 1);
869	dREQ;	1273	dREQ;
…		…
879	REQ_SEND;	1283	REQ_SEND;
880	}	1284	}
881		1285
882	void	1286	void
883	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1287	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$;$
885	PPCODE:	1288	PPCODE:
886	{	1289	{
887	int fd = s_fileno_croak (fh, 0);	1290	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1291	dREQ;
889		1292
…		…
904	aio_statvfs = EIO_STATVFS	1307	aio_statvfs = EIO_STATVFS
905	PPCODE:	1308	PPCODE:
906	{	1309	{
907	dREQ;	1310	dREQ;
908		1311
909	req->sv1 = newSVsv (fh_or_path);	1312	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
910
911	if (SvPOK (req->sv1))
912	{
913	req->type = ix;
914	req->ptr1 = SvPVbyte_nolen (req->sv1);
915	}
916	else
917	{
918	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
919	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
920	}
921		1313
922	REQ_SEND;	1314	REQ_SEND;
923	}	1315	}
		1316
		1317	UV
		1318	major (UV dev)
		1319	ALIAS:
		1320	minor = 1
		1321	CODE:
		1322	RETVAL = ix ? major (dev) : minor (dev);
		1323	OUTPUT:
		1324	RETVAL
		1325
		1326	UV
		1327	makedev (UV maj, UV min)
		1328	CODE:
		1329	RETVAL = makedev (maj, min);
		1330	OUTPUT:
		1331	RETVAL
924		1332
925	void	1333	void
926	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1334	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
927	PPCODE:	1335	PPCODE:
928	{	1336	{
929	dREQ;	1337	dREQ;
930		1338
931	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1339	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
932	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1340	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
933	req->sv1 = newSVsv (fh_or_path);	1341	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
934
935	if (SvPOK (req->sv1))
936	{
937	req->type = EIO_UTIME;
938	req->ptr1 = SvPVbyte_nolen (req->sv1);
939	}
940	else
941	{
942	req->type = EIO_FUTIME;
943	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
944	}
945		1342
946	REQ_SEND;	1343	REQ_SEND;
947	}	1344	}
948		1345
949	void	1346	void
950	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1347	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
951	PPCODE:	1348	PPCODE:
952	{	1349	{
953	dREQ;	1350	dREQ;
954		1351
955	req->sv1 = newSVsv (fh_or_path);
956	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
957		1353	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
958	if (SvPOK (req->sv1))
959	{
960	req->type = EIO_TRUNCATE;
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962	}
963	else
964	{
965	req->type = EIO_FTRUNCATE;
966	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
967	}
968		1354
969	REQ_SEND;	1355	REQ_SEND;
970	}	1356	}
971		1357
972	void	1358	void
973	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1359	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
974	ALIAS:
975	aio_chmod = EIO_CHMOD
976	aio_mkdir = EIO_MKDIR
977	PPCODE:	1360	PPCODE:
978	{	1361	{
979	dREQ;	1362	dREQ;
980		1363
981	req->int2 = mode;	1364	req->int2 = mode;
982	req->sv1 = newSVsv (fh_or_path);	1365	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
983
984	if (SvPOK (req->sv1))
985	{
986	req->type = ix;
987	req->ptr1 = SvPVbyte_nolen (req->sv1);
988	}
989	else
990	{
991	req->type = EIO_FCHMOD;
992	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
993	}
994		1366
995	REQ_SEND;	1367	REQ_SEND;
996	}	1368	}
997		1369
998	void	1370	void
…		…
1001	{	1373	{
1002	dREQ;	1374	dREQ;
1003		1375
1004	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1376	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1005	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1377	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1006	req->sv1 = newSVsv (fh_or_path);	1378	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1007
1008	if (SvPOK (req->sv1))
1009	{
1010	req->type = EIO_CHOWN;
1011	req->ptr1 = SvPVbyte_nolen (req->sv1);
1012	}
1013	else
1014	{
1015	req->type = EIO_FCHOWN;
1016	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1017	}
1018		1379
1019	REQ_SEND;	1380	REQ_SEND;
1020	}	1381	}
1021		1382
1022	void	1383	void
…		…
1024	PPCODE:	1385	PPCODE:
1025	{	1386	{
1026	dREQ;	1387	dREQ;
1027		1388
1028	req->type = EIO_READDIR;	1389	req->type = EIO_READDIR;
1029	req->sv1 = newSVsv (pathname);
1030	req->ptr1 = SvPVbyte_nolen (req->sv1);
1031	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1390	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1032		1391
1033	if (flags & EIO_READDIR_DENTS)	1392	if (flags & EIO_READDIR_DENTS)
1034	req->int1 |= EIO_READDIR_CUSTOM2;	1393	req->int1 |= EIO_READDIR_CUSTOM2;
1035		1394
		1395	req_set_path1 (req, pathname);
		1396
1036	REQ_SEND;	1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	dREQ;
		1405
		1406	req->type = EIO_MKDIR;
		1407	req->int2 = mode;
		1408	req_set_path1 (req, pathname);
		1409
		1410	REQ_SEND;
1037	}	1411	}
1038		1412
1039	void	1413	void
1040	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1414	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1041	ALIAS:	1415	ALIAS:
…		…
1045	PPCODE:	1419	PPCODE:
1046	{	1420	{
1047	dREQ;	1421	dREQ;
1048		1422
1049	req->type = ix;	1423	req->type = ix;
1050	req->sv1 = newSVsv (pathname);	1424	req_set_path1 (req, pathname);
1051	req->ptr1 = SvPVbyte_nolen (req->sv1);
1052		1425
1053	REQ_SEND;	1426	REQ_SEND;
1054	}	1427	}
1055		1428
1056	void	1429	void
…		…
1059	aio_link = EIO_LINK	1432	aio_link = EIO_LINK
1060	aio_symlink = EIO_SYMLINK	1433	aio_symlink = EIO_SYMLINK
1061	aio_rename = EIO_RENAME	1434	aio_rename = EIO_RENAME
1062	PPCODE:	1435	PPCODE:
1063	{	1436	{
		1437	eio_wd wd2 = 0;
1064	dREQ;	1438	dREQ;
1065		1439
1066	req->type = ix;	1440	req->type = ix;
1067	req->sv1 = newSVsv (oldpath);	1441	req_set_path1 (req, oldpath);
1068	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1069	req->sv2 = newSVsv (newpath);	1443	req->int3 = (long)wd2;
1070	req->ptr2 = SvPVbyte_nolen (req->sv2);
1071		1444
1072	REQ_SEND;	1445	REQ_SEND;
1073	}	1446	}
1074		1447
1075	void	1448	void
…		…
1077	PPCODE:	1450	PPCODE:
1078	{	1451	{
1079	dREQ;	1452	dREQ;
1080		1453
1081	req->type = EIO_MKNOD;	1454	req->type = EIO_MKNOD;
1082	req->sv1 = newSVsv (pathname);
1083	req->ptr1 = SvPVbyte_nolen (req->sv1);
1084	req->int2 = (mode_t)mode;	1455	req->int2 = (mode_t)mode;
1085	req->offs = dev;	1456	req->offs = dev;
		1457	req_set_path1 (req, pathname);
1086		1458
1087	REQ_SEND;	1459	REQ_SEND;
1088	}	1460	}
1089		1461
1090	void	1462	void
1091	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1463	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1092	ALIAS:	1464	ALIAS:
1093	aio_mtouch = EIO_MTOUCH	1465	aio_mtouch = EIO_MTOUCH
1094	aio_msync = EIO_MSYNC	1466	aio_msync = EIO_MSYNC
1095	PROTOTYPE: $$$$;$
1096	PPCODE:	1467	PPCODE:
1097	{	1468	{
1098	STRLEN svlen;	1469	STRLEN svlen;
		1470	char *svptr = SvPVbyte (data, svlen);
1099	UV len = SvUV (length);	1471	UV len = SvUV (length);
1100	char *svptr = SvPVbyte (data, svlen);
1101		1472
1102	if (offset < 0)	1473	if (offset < 0)
1103	offset += svlen;	1474	offset += svlen;
1104		1475
1105	if (offset < 0 || offset > svlen)	1476	if (offset < 0 || offset > svlen)
…		…
1110		1481
1111	{	1482	{
1112	dREQ;	1483	dREQ;
1113		1484
1114	req->type = ix;	1485	req->type = ix;
1115	req->size = len;
1116	req->sv2 = SvREFCNT_inc (data);	1486	req->sv2 = SvREFCNT_inc (data);
1117	req->ptr2 = (char *)svptr + offset;	1487	req->ptr2 = (char *)svptr + offset;
		1488	req->size = len;
1118	req->int1 = flags;	1489	req->int1 = flags;
1119		1490
1120	REQ_SEND;	1491	REQ_SEND;
1121	}	1492	}
1122	}	1493	}
1123		1494
1124	void	1495	void
		1496	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1497	PPCODE:
		1498	{
		1499	STRLEN svlen;
		1500	char *svptr = SvPVbyte (data, svlen);
		1501	UV len = SvUV (length);
		1502
		1503	if (offset < 0)
		1504	offset += svlen;
		1505
		1506	if (offset < 0 || offset > svlen)
		1507	croak ("offset outside of scalar");
		1508
		1509	if (!SvOK (length) || len + offset > svlen)
		1510	len = svlen - offset;
		1511
		1512	{
		1513	dREQ;
		1514
		1515	req->type = EIO_MLOCK;
		1516	req->sv2 = SvREFCNT_inc (data);
		1517	req->ptr2 = (char *)svptr + offset;
		1518	req->size = len;
		1519
		1520	REQ_SEND;
		1521	}
		1522	}
		1523
		1524	void
		1525	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1526	PPCODE:
		1527	{
		1528	dREQ;
		1529
		1530	req->type = EIO_MLOCKALL;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535
		1536	void
		1537	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	dREQ;
		1542
		1543	req->type = EIO_CUSTOM;
		1544	req->sv1 = newSVsv (fh);
		1545	req->int1 = fd;
		1546
		1547	req->feed = fiemap;
		1548	#if HAVE_FIEMAP
		1549	/* keep our fingers crossed that the next two types are 64 bit */
		1550	req->offs = start;
		1551	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1552	req->int2 = flags;
		1553	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1554	#endif
		1555
		1556	REQ_SEND;
		1557	}
		1558
		1559	void
1125	aio_busy (double delay, SV *callback=&PL_sv_undef)	1560	aio_busy (double delay, SV *callback=&PL_sv_undef)
1126	PPCODE:	1561	PPCODE:
1127	{	1562	{
1128	dREQ;	1563	dREQ;
1129		1564
…		…
1133	REQ_SEND;	1568	REQ_SEND;
1134	}	1569	}
1135		1570
1136	void	1571	void
1137	aio_group (SV *callback=&PL_sv_undef)	1572	aio_group (SV *callback=&PL_sv_undef)
1138	PROTOTYPE: ;$
1139	PPCODE:	1573	PPCODE:
1140	{	1574	{
1141	dREQ;	1575	dREQ;
1142		1576
1143	req->type = EIO_GROUP;	1577	req->type = EIO_GROUP;
…		…
1160	REQ_SEND;	1594	REQ_SEND;
1161	}	1595	}
1162		1596
1163	int	1597	int
1164	aioreq_pri (int pri = 0)	1598	aioreq_pri (int pri = 0)
1165	PROTOTYPE: ;$
1166	CODE:	1599	CODE:
1167	RETVAL = next_pri;	1600	RETVAL = next_pri;
1168	if (items > 0)	1601	if (items > 0)
1169	{	1602	{
1170	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1603	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1182	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1615	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1183	next_pri = nice;	1616	next_pri = nice;
1184		1617
1185	void	1618	void
1186	flush ()	1619	flush ()
1187	PROTOTYPE:
1188	CODE:	1620	CODE:
1189	while (eio_nreqs ())	1621	while (eio_nreqs ())
1190	{	1622	{
1191	poll_wait ();	1623	poll_wait ();
1192	poll_cb ();	1624	poll_cb ();
1193	}	1625	}
1194		1626
1195	int	1627	int
1196	poll()	1628	poll ()
1197	PROTOTYPE:
1198	CODE:	1629	CODE:
1199	poll_wait ();	1630	poll_wait ();
1200	RETVAL = poll_cb ();	1631	RETVAL = poll_cb ();
1201	OUTPUT:	1632	OUTPUT:
1202	RETVAL	1633	RETVAL
1203		1634
1204	int	1635	int
1205	poll_fileno()	1636	poll_fileno ()
1206	PROTOTYPE:
1207	CODE:	1637	CODE:
1208	RETVAL = s_epipe_fd (&respipe);	1638	RETVAL = s_epipe_fd (&respipe);
1209	OUTPUT:	1639	OUTPUT:
1210	RETVAL	1640	RETVAL
1211		1641
1212	int	1642	int
1213	poll_cb(...)	1643	poll_cb (...)
1214	PROTOTYPE:	1644	PROTOTYPE:
1215	CODE:	1645	CODE:
1216	RETVAL = poll_cb ();	1646	RETVAL = poll_cb ();
1217	OUTPUT:	1647	OUTPUT:
1218	RETVAL	1648	RETVAL
1219		1649
1220	void	1650	void
1221	poll_wait()	1651	poll_wait ()
1222	PROTOTYPE:
1223	CODE:	1652	CODE:
1224	poll_wait ();	1653	poll_wait ();
1225		1654
1226	int	1655	int
1227	nreqs()	1656	nreqs ()
1228	PROTOTYPE:
1229	CODE:	1657	CODE:
1230	RETVAL = eio_nreqs ();	1658	RETVAL = eio_nreqs ();
1231	OUTPUT:	1659	OUTPUT:
1232	RETVAL	1660	RETVAL
1233		1661
1234	int	1662	int
1235	nready()	1663	nready ()
1236	PROTOTYPE:
1237	CODE:	1664	CODE:
1238	RETVAL = eio_nready ();	1665	RETVAL = eio_nready ();
1239	OUTPUT:	1666	OUTPUT:
1240	RETVAL	1667	RETVAL
1241		1668
1242	int	1669	int
1243	npending()	1670	npending ()
1244	PROTOTYPE:
1245	CODE:	1671	CODE:
1246	RETVAL = eio_npending ();	1672	RETVAL = eio_npending ();
1247	OUTPUT:	1673	OUTPUT:
1248	RETVAL	1674	RETVAL
1249		1675
1250	int	1676	int
1251	nthreads()	1677	nthreads ()
1252	PROTOTYPE:
1253	CODE:	1678	CODE:
1254	RETVAL = eio_nthreads ();	1679	RETVAL = eio_nthreads ();
1255	OUTPUT:	1680	OUTPUT:
1256	RETVAL	1681	RETVAL
1257		1682
1258	int	1683	int
1259	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1684	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1260	PROTOTYPE: $$$$
1261	CODE:	1685	CODE:
1262	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263	RETVAL = posix_fadvise (fh, offset, length, advice);	1686	RETVAL = posix_fadvise (fh, offset, length, advice);
1264	#else
1265	RETVAL = errno = ENOSYS;
1266	#endif
1267	OUTPUT:	1687	OUTPUT:
1268	RETVAL	1688	RETVAL
1269		1689
1270	ssize_t	1690	IV
1271	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1691	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1272	PROTOTYPE: $$$$
1273	CODE:	1692	CODE:
1274	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1693	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275	OUTPUT:	1694	OUTPUT:
1276	RETVAL	1695	RETVAL
1277		1696
		1697	void
		1698	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1699	PPCODE:
		1700	sv_unmagic (scalar, MMAP_MAGIC);
		1701	{
		1702	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1703	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1704	if (addr == (void *)-1)
		1705	XSRETURN_NO;
		1706
		1707	sv_force_normal (scalar);
		1708
		1709	/* we store the length in mg_obj, as namlen is I32 :/ */
		1710	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1711	->mg_obj = (SV *)length;
		1712
		1713	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1714
		1715	if (!(prot & PROT_WRITE))
		1716	SvREADONLY_on (scalar);
		1717
		1718	if (SvLEN (scalar))
		1719	Safefree (SvPVX (scalar));
		1720
		1721	SvPVX (scalar) = (char *)addr;
		1722	SvCUR_set (scalar, length);
		1723	SvLEN_set (scalar, 0);
		1724	SvPOK_only (scalar);
		1725
		1726	XSRETURN_YES;
		1727	}
		1728
		1729	void
		1730	munmap (SV *scalar)
		1731	CODE:
		1732	sv_unmagic (scalar, MMAP_MAGIC);
		1733
		1734	int
		1735	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1736	ALIAS:
		1737	mprotect = 1
		1738	CODE:
		1739	{
		1740	STRLEN svlen;
		1741	void *addr = SvPVbyte (scalar, svlen);
		1742	size_t len = SvUV (length);
		1743
		1744	if (offset < 0)
		1745	offset += svlen;
		1746
		1747	if (offset < 0 || offset > svlen)
		1748	croak ("offset outside of scalar");
		1749
		1750	if (!SvOK (length) || len + offset > svlen)
		1751	len = svlen - offset;
		1752
		1753	addr = (void *)(((intptr_t)addr) + offset);
		1754	eio_page_align (&addr, &len);
		1755
		1756	switch (ix)
		1757	{
		1758	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1759	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1760	}
		1761	}
		1762	OUTPUT:
		1763	RETVAL
		1764
		1765	int
		1766	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1767	CODE:
		1768	{
		1769	STRLEN svlen;
		1770	void *addr = SvPVbyte (scalar, svlen);
		1771	size_t len = SvUV (length);
		1772
		1773	if (offset < 0)
		1774	offset += svlen;
		1775
		1776	if (offset < 0 || offset > svlen)
		1777	croak ("offset outside of scalar");
		1778
		1779	if (!SvOK (length) || len + offset > svlen)
		1780	len = svlen - offset;
		1781
		1782	addr = (void *)(((intptr_t)addr) + offset);
		1783	eio_page_align (&addr, &len);
		1784	#if _POSIX_MEMLOCK_RANGE
		1785	RETVAL = munlock (addr, len);
		1786	#else
		1787	RETVAL = EIO_ENOSYS ();
		1788	#endif
		1789	}
		1790	OUTPUT:
		1791	RETVAL
		1792
		1793	int
		1794	munlockall ()
		1795	CODE:
		1796	#if _POSIX_MEMLOCK
		1797	munlockall ();
		1798	#else
		1799	RETVAL = EIO_ENOSYS ();
		1800	#endif
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1806	CODE:
		1807	{
		1808	#if HAVE_LINUX_SPLICE
		1809	loff_t off_in_, off_out_;
		1810	RETVAL = splice (
		1811	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1812	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1813	length, flags
		1814	);
		1815	#else
		1816	RETVAL = EIO_ENOSYS ();
		1817	#endif
		1818	}
		1819	OUTPUT:
		1820	RETVAL
		1821
		1822	int
		1823	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1824	CODE:
		1825	#if HAVE_LINUX_SPLICE
		1826	RETVAL = tee (rfh, wfh, length, flags);
		1827	#else
		1828	RETVAL = EIO_ENOSYS ();
		1829	#endif
		1830	OUTPUT:
		1831	RETVAL
		1832
1278	void _on_next_submit (SV *cb)	1833	void _on_next_submit (SV *cb)
1279	CODE:	1834	CODE:
1280	SvREFCNT_dec (on_next_submit);	1835	SvREFCNT_dec (on_next_submit);
1281	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1836	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1282		1837
1283	PROTOTYPES: DISABLE	1838	PROTOTYPES: DISABLE
1284		1839
		1840	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1841
		1842	BOOT:
		1843	{
		1844	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1845	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1846	}
		1847
		1848	void
		1849	DESTROY (SV *self)
		1850	CODE:
		1851	{
		1852	aio_wd wd = SvAIO_WD (self);
		1853	#if HAVE_AT
		1854	{
		1855	SV *callback = &PL_sv_undef;
		1856	dREQ; /* clobbers next_pri :/ */
		1857	next_pri = req->pri; /* restore next_pri */
		1858	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1859	req->type = EIO_WD_CLOSE;
		1860	req->wd = wd;
		1861	REQ_SEND;
		1862	}
		1863	#else
		1864	eio_wd_close_sync (wd);
		1865	#endif
		1866	}
		1867
1285	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1868	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1286		1869
1287	void	1870	void
1288	cancel (aio_req_ornot req)	1871	cancel (aio_req_ornot req)
1289	CODE:	1872	CODE:

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines