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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.170 by root, Wed Aug 4 16:09:36 2010 UTC vs.
Revision 1.222 by root, Fri Aug 24 15:33:40 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
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	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
23	#endif	31	#endif
24		32
25	/* perl namespace pollution */	33	/* perl namespace pollution */
26	#undef VERSION	34	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		35
77	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	38	#undef readdir
80	#undef opendir	39	#undef opendir
81	#undef closedir	40	#undef closedir
82		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
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	79	#else
91	# define VAL64 NV	80
92	# define SvVAL64 SvNV	81	#include <sys/time.h>
93	# 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
94	#endif	89	#endif
95		90
96	/*****************************************************************************/	91	/*****************************************************************************/
97		92
98	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
108		103
109	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
112		107
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		109
115	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
116	SV *callback; \	111	SV *callback; \
117	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
118	STRLEN stroffset; \	114	STRLEN stroffset; \
119	SV *self;	115	SV *self;
120		116
121	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
122		118
		119	#include "libeio/config.h"
123	#include "libeio/eio.h"	120	#include "libeio/eio.h"
124		121
125	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
128	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
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		126
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	131	#endif
148		132
149	#ifndef POSIX_MADV_NORMAL	133	#if !HAVE_POSIX_MADVISE
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 */	134	# 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	135	#endif
207		136
208	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
209	# ifdef MAP_ANON	138	# ifdef MAP_ANON
210	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
211	# else	140	# else
212	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
213	# endif	142	# endif
214	#endif	143	#endif
215	#ifndef MAP_HUGETLB	144
216	# define MAP_HUGETLB 0	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))
217	#endif	150	#endif
218	#ifndef MAP_LOCKED	151	#ifndef major
219	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
220	#endif	153	#endif
221	#ifndef MAP_NORESERVE	154	#ifndef minor
222	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
223	#endif
224	#ifndef MAP_POPULATE
225	# define MAP_POPULATE 0
226	#endif
227	#ifndef MAP_NONBLOCK
228	# define MAP_NONBLOCK 0
229	#endif	156	#endif
230		157
231	#ifndef PAGESIZE	158	#ifndef PAGESIZE
232	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
233	#endif	160	#endif
234		161
235	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
236	#define EIO_FINISH(req) req_invoke (req)	163
237	static void req_destroy (eio_req *grp);	164	static void
238	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (atcually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
		224	return;
		225
		226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
239		258
240	enum {	259	enum {
241	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
242	};	261	};
243		262
244	#include "libeio/eio.c"
245
246	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
247	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
248		266
249	static SV *on_next_submit;	267	static SV *on_next_submit;
250	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
251	static int max_outstanding;	269	static int max_outstanding;
252		270
253	static s_epipe respipe;	271	static s_epipe respipe;
254		272
255	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
256	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
257		275
258	static void want_poll (void)	276	static void
		277	want_poll (void)
259	{	278	{
260	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
261	s_epipe_signal (&respipe);	280	s_epipe_signal (&respipe);
262	}	281	}
263		282
264	static void done_poll (void)	283	static void
		284	done_poll (void)
265	{	285	{
266	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
267	s_epipe_drain (&respipe);	287	s_epipe_drain (&respipe);
268	}	288	}
269		289
270	/* must be called at most once */	290	/* must be called at most once */
		291	static SV *
271	static SV *req_sv (aio_req req, HV *stash)	292	req_sv (aio_req req, HV *stash)
272	{	293	{
273	if (!req->self)	294	if (!req->self)
274	{	295	{
275	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
276	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
277	}	298	}
278		299
279	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
280	}	301	}
281		302
282	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
283	{	311	{
284	MAGIC *mg;	312	MAGIC *mg;
285		313
286	if (!SvROK (sv)	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
287	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
288	&& SvSTASH (SvRV (sv)) != aio_req_stash	317	&& SvSTASH (SvRV (sv)) != aio_req_stash
289	&& !sv_derived_from (sv, "IO::AIO::REQ")))	318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
290	croak ("object of class IO::AIO::REQ expected");	319	croak ("object of class IO::AIO::REQ expected");
291		320
292	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
293		322
294	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
295	}	324	}
296		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
297	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
298	{	339	{
299	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
300	{	341	{
301	dSP;	342	dSP;
302		343
…		…
310	FREETMPS;	351	FREETMPS;
311	LEAVE;	352	LEAVE;
312	}	353	}
313	}	354	}
314		355
		356	static void
315	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
316	{	358	{
317	eio_submit (req);	359	eio_submit (req);
318		360
319	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
320	{	362	{
…		…
327	PUTBACK;	369	PUTBACK;
328	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
329	}	371	}
330	}	372	}
331		373
		374	static int
332	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
333	{	376	{
334	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
335	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
336		379
337	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
…		…
348	/* do not recreate the result IV from scratch each time */	391	/* do not recreate the result IV from scratch each time */
349	if (expect_true (sv_result_cache))	392	if (expect_true (sv_result_cache))
350	{	393	{
351	sv_result = sv_result_cache; sv_result_cache = 0;	394	sv_result = sv_result_cache; sv_result_cache = 0;
352	SvIV_set (sv_result, req->result);	395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
353	}	397	}
354	else	398	else
355	{	399	{
356	sv_result = newSViv (req->result);	400	sv_result = newSViv (req->result);
357	SvREADONLY_on (sv_result);	401	SvREADONLY_on (sv_result);
358	}	402	}
359		403
360	switch (req->type)	404	switch (req->type)
361	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
362	case EIO_READDIR:	410	case EIO_READDIR:
363	{	411	{
364	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
365		413
366	if (req->result >= 0)	414	if (req->result >= 0)
…		…
454	case EIO_STATVFS:	502	case EIO_STATVFS:
455	case EIO_FSTATVFS:	503	case EIO_FSTATVFS:
456	{	504	{
457	SV *rv = &PL_sv_undef;	505	SV *rv = &PL_sv_undef;
458		506
		507	#ifndef _WIN32
459	if (req->result >= 0)	508	if (req->result >= 0)
460	{	509	{
461	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
462	HV *hv = newHV ();	511	HV *hv = newHV ();
463		512
…		…
473	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	522	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);	523	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);	524	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);	525	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
477	}	526	}
		527	#endif
478		528
479	PUSHs (rv);	529	PUSHs (rv);
480	}	530	}
481		531
482	break;	532	break;
…		…
498	case EIO_NOP:	548	case EIO_NOP:
499	case EIO_BUSY:	549	case EIO_BUSY:
500	break;	550	break;
501		551
502	case EIO_READLINK:	552	case EIO_READLINK:
		553	case EIO_REALPATH:
503	if (req->result > 0)	554	if (req->result > 0)
504	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	555	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
505	break;	556	break;
506		557
507	case EIO_STAT:	558	case EIO_STAT:
508	case EIO_LSTAT:	559	case EIO_LSTAT:
509	case EIO_FSTAT:	560	case EIO_FSTAT:
510	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	561	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		562
511	PL_laststatval = req->result;	563	if (!(PL_laststatval = req->result))
		564	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
512	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	565	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		566
513	PUSHs (sv_result);	567	PUSHs (sv_result);
		568	break;
		569
		570	case EIO_SEEK:
		571	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
514	break;	572	break;
515		573
516	case EIO_READ:	574	case EIO_READ:
517	{	575	{
518	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	576	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
521	SvSETMAGIC (req->sv2);	579	SvSETMAGIC (req->sv2);
522	PUSHs (sv_result);	580	PUSHs (sv_result);
523	}	581	}
524	break;	582	break;
525		583
		584	case EIO_CUSTOM:
		585	if (req->feed == fiemap)
		586	{
		587	#if HAVE_FIEMAP
		588	if (!req->result)
		589	{
		590	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		591
		592	if (fiemap->fm_extent_count)
		593	{
		594	AV *av = newAV ();
		595	int i;
		596
		597	while (fiemap->fm_mapped_extents)
		598	{
		599	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		600	AV *ext_av = newAV ();
		601
		602	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		603	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		604	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		605	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		606
		607	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		608	}
		609
		610	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		611	}
		612	else
		613	{
		614	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		615	PUSHs (sv_result);
		616	}
		617	}
		618	#endif
		619	}
		620	else
		621	PUSHs (sv_result);
		622	break;
		623
526	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
527	if (req->result > 0)	625	if (req->result > 0)
528	SvIV_set (sv_result, 0);	626	SvIV_set (sv_result, 0);
529	/* FALLTHROUGH */	627	/* FALLTHROUGH */
530		628
531	default:	629	default:
…		…
551	}	649	}
552		650
553	return !!SvTRUE (ERRSV);	651	return !!SvTRUE (ERRSV);
554	}	652	}
555		653
		654	static void
556	static void req_destroy (aio_req req)	655	req_destroy (aio_req req)
557	{	656	{
558	if (req->self)	657	if (req->self)
559	{	658	{
560	sv_unmagic (req->self, PERL_MAGIC_ext);	659	sv_unmagic (req->self, PERL_MAGIC_ext);
561	SvREFCNT_dec (req->self);	660	SvREFCNT_dec (req->self);
562	}	661	}
563		662
564	SvREFCNT_dec (req->sv1);	663	SvREFCNT_dec (req->sv1);
565	SvREFCNT_dec (req->sv2);	664	SvREFCNT_dec (req->sv2);
		665	SvREFCNT_dec (req->sv3);
		666	SvREFCNT_dec (req->sv4);
566	SvREFCNT_dec (req->callback);	667	SvREFCNT_dec (req->callback);
567		668
568	Safefree (req);	669	free (req);
569	}	670	}
570		671
		672	static void
571	static void req_cancel_subs (aio_req grp)	673	req_cancel_subs (aio_req grp)
572	{	674	{
573	aio_req sub;
574
575	if (grp->type != EIO_GROUP)	675	if (grp->type != EIO_GROUP)
576	return;	676	return;
577		677
578	SvREFCNT_dec (grp->sv2);	678	SvREFCNT_dec (grp->sv2);
579	grp->sv2 = 0;	679	grp->sv2 = 0;
580		680
581	eio_grp_cancel (grp);	681	eio_grp_cancel (grp);
582	}	682	}
583		683
584	static void	684	static void ecb_cold
585	create_respipe (void)	685	create_respipe (void)
586	{	686	{
587	if (s_epipe_renew (&respipe))	687	if (s_epipe_renew (&respipe))
588	croak ("IO::AIO: unable to initialize result pipe");	688	croak ("IO::AIO: unable to initialize result pipe");
589	}	689	}
590		690
591	static void poll_wait (void)	691	static void
		692	poll_wait (void)
592	{	693	{
593	while (eio_nreqs ())	694	while (eio_nreqs ())
594	{	695	{
595	int size;	696	int size;
596		697
…		…
605		706
606	s_epipe_wait (&respipe);	707	s_epipe_wait (&respipe);
607	}	708	}
608	}	709	}
609		710
610	static int poll_cb (void)	711	static int
		712	poll_cb (void)
611	{	713	{
612	for (;;)	714	for (;;)
613	{	715	{
614	int res = eio_poll ();	716	int res = eio_poll ();
615		717
…		…
621		723
622	poll_wait ();	724	poll_wait ();
623	}	725	}
624	}	726	}
625		727
626	static void atfork_child (void)	728	static void ecb_cold
		729	reinit (void)
627	{	730	{
628	create_respipe ();	731	create_respipe ();
		732
		733	if (eio_init (want_poll, done_poll) < 0)
		734	croak ("IO::AIO: unable to initialise eio library");
629	}	735	}
630		736
631	/*****************************************************************************/	737	/*****************************************************************************/
632		738
633	#if !_POSIX_MAPPED_FILES	739	#if !_POSIX_MAPPED_FILES
634	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
635	# define munmap(addr,length) (errno = ENOSYS, -1)	741	# define munmap(addr,length) EIO_ENOSYS ()
		742	#endif
		743
		744	#if !_POSIX_MEMORY_PROTECTION
		745	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		746	# define PROT_NONE 0
		747	# define PROT_WRITE 0
		748	# define MAP_PRIVATE 0
		749	# define MAP_SHARED 0
		750	# define MAP_FIXED 0
636	#endif	751	#endif
637		752
638	#define MMAP_MAGIC PERL_MAGIC_ext	753	#define MMAP_MAGIC PERL_MAGIC_ext
639		754
640	static int	755	static int ecb_cold
641	mmap_free (pTHX_ SV *sv, MAGIC *mg)	756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
642	{	757	{
643	int old_errno = errno;	758	int old_errno = errno;
644	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
645	errno = old_errno;	760	errno = old_errno;
…		…
669	{	784	{
670	SvGETMAGIC (cb_sv);	785	SvGETMAGIC (cb_sv);
671	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	786	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
672	}	787	}
673		788
		789	static aio_req ecb_noinline
		790	dreq (SV *callback)
		791	{
		792	SV *cb_cv;
		793	aio_req req;
		794	int req_pri = next_pri;
		795	next_pri = EIO_PRI_DEFAULT;
		796
		797	cb_cv = get_cb (callback);
		798
		799	req = calloc (sizeof (*req), 1);
		800	if (!req)
		801	croak ("out of memory during eio_req allocation");
		802
		803	req->callback = SvREFCNT_inc (cb_cv);
		804	req->pri = req_pri;
		805
		806	return req;
		807	}
		808
674	#define dREQ \	809	#define dREQ \
675	SV *cb_cv; \	810	aio_req req = dreq (callback); \
676	aio_req req; \
677	int req_pri = next_pri; \
678	next_pri = EIO_PRI_DEFAULT; \
679	\
680	cb_cv = get_cb (callback); \
681	\
682	Newz (0, req, 1, eio_req); \
683	if (!req) \
684	croak ("out of memory during eio_req allocation"); \
685	\
686	req->callback = SvREFCNT_inc (cb_cv); \
687	req->pri = req_pri
688		811
689	#define REQ_SEND \	812	#define REQ_SEND \
690	PUTBACK; \	813	PUTBACK; \
691	req_submit (req); \	814	req_submit (req); \
692	SPAGAIN; \	815	SPAGAIN; \
693	\	816	\
694	if (GIMME_V != G_VOID) \	817	if (GIMME_V != G_VOID) \
695	XPUSHs (req_sv (req, aio_req_stash));	818	XPUSHs (req_sv (req, aio_req_stash));
696		819
		820	ecb_inline void
		821	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		822	{
		823	if (expect_false (SvROK (path)))
		824	{
		825	SV *rv = SvRV (path);
		826	SV *wdob;
		827
		828	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		829	{
		830	path = AvARRAY (rv)[1];
		831	wdob = AvARRAY (rv)[0];
		832
		833	if (SvOK (wdob))
		834	{
		835	*wd = SvAIO_WD (wdob);
		836	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		837	}
		838	else
		839	*wd = EIO_INVALID_WD;
		840	}
		841	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		842	{
		843	*wd = (aio_wd)(long)SvIVX (rv);
		844	*wdsv = SvREFCNT_inc_NN (rv);
		845	*ptr = ".";
		846	return; /* path set to "." */
		847	}
		848	else
		849	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		850	}
		851
		852	*pathsv = newSVsv (path);
		853	*ptr = SvPVbyte_nolen (*pathsv);
		854	}
		855
		856	static void ecb_noinline
		857	req_set_path1 (aio_req req, SV *path)
		858	{
		859	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		864	{
		865	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		866
		867	switch (SvTYPE (rv))
		868	{
		869	case SVt_PVIO:
		870	case SVt_PVLV:
		871	case SVt_PVGV:
		872	req->type = type_fh;
		873	req->sv1 = newSVsv (fh_or_path);
		874	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		875	break;
		876
		877	default:
		878	req->type = type_path;
		879	req_set_path1 (req, fh_or_path);
		880	break;
		881	}
		882	}
		883
		884	XS(boot_IO__AIO) ecb_cold;
		885
697	MODULE = IO::AIO PACKAGE = IO::AIO	886	MODULE = IO::AIO PACKAGE = IO::AIO
698		887
699	PROTOTYPES: ENABLE	888	PROTOTYPES: ENABLE
700		889
701	BOOT:	890	BOOT:
…		…
705	IV iv;	894	IV iv;
706	} *civ, const_iv[] = {	895	} *civ, const_iv[] = {
707	# define const_niv(name, value) { # name, (IV) value },	896	# define const_niv(name, value) { # name, (IV) value },
708	# define const_iv(name) { # name, (IV) name },	897	# define const_iv(name) { # name, (IV) name },
709	# define const_eio(name) { # name, (IV) EIO_ ## name },	898	# define const_eio(name) { # name, (IV) EIO_ ## name },
		899
		900	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		901
		902	const_iv (ENOSYS)
710	const_iv (EXDEV)	903	const_iv (EXDEV)
711	const_iv (ENOSYS)	904	const_iv (EBADR)
		905
712	const_iv (O_RDONLY)	906	const_iv (O_RDONLY)
713	const_iv (O_WRONLY)	907	const_iv (O_WRONLY)
714	const_iv (O_RDWR)	908	const_iv (O_RDWR)
715	const_iv (O_CREAT)	909	const_iv (O_CREAT)
716	const_iv (O_TRUNC)	910	const_iv (O_TRUNC)
717	const_iv (O_EXCL)	911	const_iv (O_EXCL)
718	const_iv (O_APPEND)	912	const_iv (O_APPEND)
719	#ifndef _WIN32	913
		914	const_iv (O_ASYNC)
		915	const_iv (O_DIRECT)
		916	const_iv (O_NOATIME)
		917
		918	const_iv (O_CLOEXEC)
		919	const_iv (O_NOCTTY)
		920	const_iv (O_NOFOLLOW)
		921	const_iv (O_NONBLOCK)
		922	const_iv (O_EXEC)
		923	const_iv (O_SEARCH)
		924	const_iv (O_DIRECTORY)
		925	const_iv (O_DSYNC)
		926	const_iv (O_RSYNC)
		927	const_iv (O_SYNC)
		928	const_iv (O_TTY_INIT)
		929
720	const_iv (S_IFIFO)	930	const_iv (S_IFIFO)
721	#endif	931	const_iv (S_IFCHR)
		932	const_iv (S_IFBLK)
		933	const_iv (S_IFLNK)
		934	const_iv (S_IFREG)
		935	const_iv (S_IFDIR)
		936	const_iv (S_IFWHT)
		937	const_iv (S_IFSOCK)
		938	const_iv (S_IFMT)
		939
722	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	940	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
723	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	941	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
724	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	942	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
725	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	943	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
726	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	944	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
743	const_iv (ST_IMMUTABLE)	961	const_iv (ST_IMMUTABLE)
744	const_iv (ST_NOATIME)	962	const_iv (ST_NOATIME)
745	const_iv (ST_NODIRATIME)	963	const_iv (ST_NODIRATIME)
746	const_iv (ST_RELATIME)	964	const_iv (ST_RELATIME)
747		965
		966	const_iv (PROT_NONE)
748	const_iv (PROT_EXEC)	967	const_iv (PROT_EXEC)
749	const_iv (PROT_NONE)
750	const_iv (PROT_READ)	968	const_iv (PROT_READ)
751	const_iv (PROT_WRITE)	969	const_iv (PROT_WRITE)
752		970
753	/*const_iv (MAP_FIXED)*/	971	/*const_iv (MAP_FIXED)*/
754	const_iv (MAP_PRIVATE)	972	const_iv (MAP_PRIVATE)
…		…
760	const_iv (MAP_LOCKED)	978	const_iv (MAP_LOCKED)
761	const_iv (MAP_NORESERVE)	979	const_iv (MAP_NORESERVE)
762	const_iv (MAP_POPULATE)	980	const_iv (MAP_POPULATE)
763	const_iv (MAP_NONBLOCK)	981	const_iv (MAP_NONBLOCK)
764		982
		983	const_iv (FIEMAP_FLAG_SYNC)
		984	const_iv (FIEMAP_FLAG_XATTR)
		985	const_iv (FIEMAP_FLAGS_COMPAT)
		986	const_iv (FIEMAP_EXTENT_LAST)
		987	const_iv (FIEMAP_EXTENT_UNKNOWN)
		988	const_iv (FIEMAP_EXTENT_DELALLOC)
		989	const_iv (FIEMAP_EXTENT_ENCODED)
		990	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		991	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		992	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		993	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		994	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		995	const_iv (FIEMAP_EXTENT_MERGED)
		996	const_iv (FIEMAP_EXTENT_SHARED)
		997
		998	const_iv (SPLICE_F_MOVE)
		999	const_iv (SPLICE_F_NONBLOCK)
		1000	const_iv (SPLICE_F_MORE)
		1001	const_iv (SPLICE_F_GIFT)
		1002
		1003	const_iv (SEEK_DATA)
		1004	const_iv (SEEK_HOLE)
		1005
		1006	/* libeio constants */
		1007	const_eio (SEEK_SET)
		1008	const_eio (SEEK_CUR)
		1009	const_eio (SEEK_END)
		1010
765	const_iv (MCL_FUTURE)	1011	const_eio (MCL_FUTURE)
766	const_iv (MCL_CURRENT)	1012	const_eio (MCL_CURRENT)
767		1013
768	const_eio (MS_ASYNC)	1014	const_eio (MS_ASYNC)
769	const_eio (MS_INVALIDATE)	1015	const_eio (MS_INVALIDATE)
770	const_eio (MS_SYNC)	1016	const_eio (MS_SYNC)
771		1017
772	const_eio (MT_MODIFY)	1018	const_eio (MT_MODIFY)
773		1019
774	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1020	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
775	const_eio (SYNC_FILE_RANGE_WRITE)	1021	const_eio (SYNC_FILE_RANGE_WRITE)
776	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1023
		1024	const_eio (FALLOC_FL_KEEP_SIZE)
		1025	const_eio (FALLOC_FL_PUNCH_HOLE)
777		1026
778	const_eio (READDIR_DENTS)	1027	const_eio (READDIR_DENTS)
779	const_eio (READDIR_DIRS_FIRST)	1028	const_eio (READDIR_DIRS_FIRST)
780	const_eio (READDIR_STAT_ORDER)	1029	const_eio (READDIR_STAT_ORDER)
781	const_eio (READDIR_FOUND_UNKNOWN)	1030	const_eio (READDIR_FOUND_UNKNOWN)
…		…
792	};	1041	};
793		1042
794	aio_stash = gv_stashpv ("IO::AIO" , 1);	1043	aio_stash = gv_stashpv ("IO::AIO" , 1);
795	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1044	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
796	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1045	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1046	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
797		1047
798	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
799	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
800		1050
801	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
802		1052
803	create_respipe ();	1053	reinit ();
804
805	if (eio_init (want_poll, done_poll) < 0)
806	croak ("IO::AIO: unable to initialise eio library");
807
808	/* atfork child called in fifo order, so before eio's handler */
809	X_THREAD_ATFORK (0, 0, atfork_child);
810	}	1054	}
811		1055
812	void	1056	void
		1057	reinit ()
		1058	PROTOTYPE:
		1059
		1060	void
813	max_poll_reqs (int nreqs)	1061	max_poll_reqs (unsigned int nreqs)
814	PROTOTYPE: $	1062	PROTOTYPE: $
815	CODE:	1063	CODE:
816	eio_set_max_poll_reqs (nreqs);	1064	eio_set_max_poll_reqs (nreqs);
817		1065
818	void	1066	void
…		…
820	PROTOTYPE: $	1068	PROTOTYPE: $
821	CODE:	1069	CODE:
822	eio_set_max_poll_time (nseconds);	1070	eio_set_max_poll_time (nseconds);
823		1071
824	void	1072	void
825	min_parallel (int nthreads)	1073	min_parallel (unsigned int nthreads)
826	PROTOTYPE: $	1074	PROTOTYPE: $
827	CODE:	1075	CODE:
828	eio_set_min_parallel (nthreads);	1076	eio_set_min_parallel (nthreads);
829		1077
830	void	1078	void
831	max_parallel (int nthreads)	1079	max_parallel (unsigned int nthreads)
832	PROTOTYPE: $	1080	PROTOTYPE: $
833	CODE:	1081	CODE:
834	eio_set_max_parallel (nthreads);	1082	eio_set_max_parallel (nthreads);
835		1083
836	void	1084	void
837	max_idle (int nthreads)	1085	max_idle (unsigned int nthreads)
838	PROTOTYPE: $	1086	PROTOTYPE: $
839	CODE:	1087	CODE:
840	eio_set_max_idle (nthreads);	1088	eio_set_max_idle (nthreads);
841		1089
842	void	1090	void
		1091	idle_timeout (unsigned int seconds)
		1092	PROTOTYPE: $
		1093	CODE:
		1094	eio_set_idle_timeout (seconds);
		1095
		1096	void
843	max_outstanding (int maxreqs)	1097	max_outstanding (unsigned int maxreqs)
844	PROTOTYPE: $	1098	PROTOTYPE: $
845	CODE:	1099	CODE:
846	max_outstanding = maxreqs;	1100	max_outstanding = maxreqs;
847		1101
848	void	1102	void
		1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1104	PPCODE:
		1105	{
		1106	dREQ;
		1107
		1108	req->type = EIO_WD_OPEN;
		1109	req_set_path1 (req, pathname);
		1110
		1111	REQ_SEND;
		1112	}
		1113
		1114	void
849	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
850	PROTOTYPE: $$$;$
851	PPCODE:	1116	PPCODE:
852	{	1117	{
853	dREQ;	1118	dREQ;
854		1119
855	req->type = EIO_OPEN;	1120	req->type = EIO_OPEN;
856	req->sv1 = newSVsv (pathname);	1121	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858	req->int1 = flags;	1122	req->int1 = flags;
859	req->int2 = mode;	1123	req->int2 = mode;
860		1124
861	REQ_SEND;	1125	REQ_SEND;
862	}	1126	}
863		1127
864	void	1128	void
865	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
866	PROTOTYPE: $;$
867	ALIAS:	1130	ALIAS:
868	aio_fsync = EIO_FSYNC	1131	aio_fsync = EIO_FSYNC
869	aio_fdatasync = EIO_FDATASYNC	1132	aio_fdatasync = EIO_FDATASYNC
		1133	aio_syncfs = EIO_SYNCFS
870	PPCODE:	1134	PPCODE:
871	{	1135	{
872	int fd = s_fileno_croak (fh, 0);	1136	int fd = s_fileno_croak (fh, 0);
873	dREQ;	1137	dREQ;
874		1138
875	req->type = ix;	1139	req->type = ix;
876	req->sv1 = newSVsv (fh);	1140	req->sv1 = newSVsv (fh);
877	req->int1 = fd;	1141	req->int1 = fd;
878		1142
879	REQ_SEND (req);	1143	REQ_SEND;
880	}	1144	}
881		1145
882	void	1146	void
883	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$$;$
885	PPCODE:	1148	PPCODE:
886	{	1149	{
887	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1151	dREQ;
889		1152
890	req->type = EIO_SYNC_FILE_RANGE;	1153	req->type = EIO_SYNC_FILE_RANGE;
891	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
892	req->int1 = fd;	1155	req->int1 = fd;
893	req->offs = offset;	1156	req->offs = offset;
894	req->size = nbytes;	1157	req->size = nbytes;
895	req->int2 = flags;	1158	req->int2 = flags;
896		1159
897	REQ_SEND (req);	1160	REQ_SEND;
		1161	}
		1162
		1163	void
		1164	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1165	PPCODE:
		1166	{
		1167	int fd = s_fileno_croak (fh, 0);
		1168	dREQ;
		1169
		1170	req->type = EIO_FALLOCATE;
		1171	req->sv1 = newSVsv (fh);
		1172	req->int1 = fd;
		1173	req->int2 = mode;
		1174	req->offs = offset;
		1175	req->size = len;
		1176
		1177	REQ_SEND;
898	}	1178	}
899		1179
900	void	1180	void
901	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)
902	PROTOTYPE: $;$
903	PPCODE:	1182	PPCODE:
904	{	1183	{
905	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
906	int fd = s_fileno_croak (fh, 0);	1185	int fd = s_fileno_croak (fh, 0);
907	dREQ;	1186	dREQ;
908		1187
909	if (close_pipe < 0)	1188	if (expect_false (close_fd < 0))
910	{	1189	{
911	int pipefd [2];	1190	int pipefd [2];
912		1191
		1192	if (
		1193	#ifdef _WIN32
		1194	_pipe (pipefd, 1, _O_BINARY) < 0
		1195	#else
913	if (pipe (pipefd) < 0	1196	pipe (pipefd) < 0
914	|| close (pipefd [1]) < 0
915	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1197	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1198	#endif
		1199	|| close (pipefd [1]) < 0
		1200	)
916	abort (); /*D*/	1201	abort (); /*D*/
917		1202
918	close_pipe = pipefd [0];	1203	close_fd = pipefd [0];
919	}	1204	}
920		1205
921	req->type = EIO_DUP2;	1206	req->type = EIO_DUP2;
922	req->int1 = close_pipe;	1207	req->int1 = close_fd;
923	req->sv2 = newSVsv (fh);	1208	req->sv2 = newSVsv (fh);
924	req->int2 = fd;	1209	req->int2 = fd;
925		1210
926	REQ_SEND (req);	1211	REQ_SEND;
		1212	}
		1213
		1214	void
		1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1216	PPCODE:
		1217	{
		1218	int fd = s_fileno_croak (fh, 0);
		1219	dREQ;
		1220
		1221	req->type = EIO_SEEK;
		1222	req->sv1 = newSVsv (fh);
		1223	req->int1 = fd;
		1224	req->offs = SvVAL64 (offset);
		1225	req->int2 = whence;
		1226
		1227	REQ_SEND;
927	}	1228	}
928		1229
929	void	1230	void
930	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
931	ALIAS:	1232	ALIAS:
932	aio_read = EIO_READ	1233	aio_read = EIO_READ
933	aio_write = EIO_WRITE	1234	aio_write = EIO_WRITE
934	PROTOTYPE: $$$$$;$
935	PPCODE:	1235	PPCODE:
936	{	1236	{
937	STRLEN svlen;	1237	STRLEN svlen;
938	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1238	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
939	char *svptr = SvPVbyte (data, svlen);	1239	char *svptr = SvPVbyte (data, svlen);
…		…
953	}	1253	}
954	else	1254	else
955	{	1255	{
956	/* read: check type and grow scalar as necessary */	1256	/* read: check type and grow scalar as necessary */
957	SvUPGRADE (data, SVt_PV);	1257	SvUPGRADE (data, SVt_PV);
		1258	if (SvLEN (data) >= SvCUR (data))
958	svptr = SvGROW (data, len + dataoffset + 1);	1259	svptr = SvGROW (data, len + dataoffset + 1);
		1260	else if (SvCUR (data) < len + dataoffset)
		1261	croak ("length + dataoffset outside of scalar, and cannot grow");
959	}	1262	}
960		1263
961	{	1264	{
962	dREQ;	1265	dREQ;
963		1266
…		…
979	REQ_SEND;	1282	REQ_SEND;
980	}	1283	}
981	}	1284	}
982		1285
983	void	1286	void
984	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
985	PROTOTYPE: $$;$	1288	ALIAS:
		1289	aio_readlink = EIO_READLINK
		1290	aio_realpath = EIO_REALPATH
986	PPCODE:	1291	PPCODE:
987	{	1292	{
988	SV *data;
989	dREQ;	1293	dREQ;
990		1294
991	req->type = EIO_READLINK;	1295	req->type = ix;
992	req->sv1 = newSVsv (path);	1296	req_set_path1 (req, pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994		1297
995	REQ_SEND;	1298	REQ_SEND;
996	}	1299	}
997		1300
998	void	1301	void
999	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1000	PROTOTYPE: $$$$;$
1001	PPCODE:	1303	PPCODE:
1002	{	1304	{
1003	int ifd = s_fileno_croak (in_fh , 0);	1305	int ifd = s_fileno_croak (in_fh , 0);
1004	int ofd = s_fileno_croak (out_fh, 1);	1306	int ofd = s_fileno_croak (out_fh, 1);
1005	dREQ;	1307	dREQ;
1006		1308
1007	req->type = EIO_SENDFILE;	1309	req->type = EIO_SENDFILE;
1008	req->sv1 = newSVsv (out_fh);	1310	req->sv1 = newSVsv (out_fh);
1009	req->int1 = ofd;	1311	req->int1 = ofd;
…		…
1015	REQ_SEND;	1317	REQ_SEND;
1016	}	1318	}
1017		1319
1018	void	1320	void
1019	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1020	PROTOTYPE: $$$;$
1021	PPCODE:	1322	PPCODE:
1022	{	1323	{
1023	int fd = s_fileno_croak (fh, 0);	1324	int fd = s_fileno_croak (fh, 0);
1024	dREQ;	1325	dREQ;
1025		1326
1026	req->type = EIO_READAHEAD;	1327	req->type = EIO_READAHEAD;
1027	req->sv1 = newSVsv (fh);	1328	req->sv1 = newSVsv (fh);
1028	req->int1 = fd;	1329	req->int1 = fd;
…		…
1040	aio_statvfs = EIO_STATVFS	1341	aio_statvfs = EIO_STATVFS
1041	PPCODE:	1342	PPCODE:
1042	{	1343	{
1043	dREQ;	1344	dREQ;
1044		1345
1045	req->sv1 = newSVsv (fh_or_path);	1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1046
1047	if (SvPOK (req->sv1))
1048	{
1049	req->type = ix;
1050	req->ptr1 = SvPVbyte_nolen (req->sv1);
1051	}
1052	else
1053	{
1054	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1055	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1056	}
1057		1347
1058	REQ_SEND;	1348	REQ_SEND;
1059	}	1349	}
		1350
		1351	UV
		1352	major (UV dev)
		1353	ALIAS:
		1354	minor = 1
		1355	CODE:
		1356	RETVAL = ix ? major (dev) : minor (dev);
		1357	OUTPUT:
		1358	RETVAL
		1359
		1360	UV
		1361	makedev (UV maj, UV min)
		1362	CODE:
		1363	RETVAL = makedev (maj, min);
		1364	OUTPUT:
		1365	RETVAL
1060		1366
1061	void	1367	void
1062	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1368	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1063	PPCODE:	1369	PPCODE:
1064	{	1370	{
1065	dREQ;	1371	dREQ;
1066		1372
1067	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1068	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1374	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1069	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1070
1071	if (SvPOK (req->sv1))
1072	{
1073	req->type = EIO_UTIME;
1074	req->ptr1 = SvPVbyte_nolen (req->sv1);
1075	}
1076	else
1077	{
1078	req->type = EIO_FUTIME;
1079	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1080	}
1081		1376
1082	REQ_SEND;	1377	REQ_SEND;
1083	}	1378	}
1084		1379
1085	void	1380	void
1086	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1087	PPCODE:	1382	PPCODE:
1088	{	1383	{
1089	dREQ;	1384	dREQ;
1090		1385
1091	req->sv1 = newSVsv (fh_or_path);
1092	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1093		1387	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1094	if (SvPOK (req->sv1))
1095	{
1096	req->type = EIO_TRUNCATE;
1097	req->ptr1 = SvPVbyte_nolen (req->sv1);
1098	}
1099	else
1100	{
1101	req->type = EIO_FTRUNCATE;
1102	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1103	}
1104		1388
1105	REQ_SEND;	1389	REQ_SEND;
1106	}	1390	}
1107		1391
1108	void	1392	void
1109	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1110	ALIAS:
1111	aio_chmod = EIO_CHMOD
1112	aio_mkdir = EIO_MKDIR
1113	PPCODE:	1394	PPCODE:
1114	{	1395	{
1115	dREQ;	1396	dREQ;
1116		1397
1117	req->int2 = mode;	1398	req->int2 = mode;
1118	req->sv1 = newSVsv (fh_or_path);	1399	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1119
1120	if (SvPOK (req->sv1))
1121	{
1122	req->type = ix;
1123	req->ptr1 = SvPVbyte_nolen (req->sv1);
1124	}
1125	else
1126	{
1127	req->type = EIO_FCHMOD;
1128	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1129	}
1130		1400
1131	REQ_SEND;	1401	REQ_SEND;
1132	}	1402	}
1133		1403
1134	void	1404	void
…		…
1137	{	1407	{
1138	dREQ;	1408	dREQ;
1139		1409
1140	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1141	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1411	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1142	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1143
1144	if (SvPOK (req->sv1))
1145	{
1146	req->type = EIO_CHOWN;
1147	req->ptr1 = SvPVbyte_nolen (req->sv1);
1148	}
1149	else
1150	{
1151	req->type = EIO_FCHOWN;
1152	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1153	}
1154		1413
1155	REQ_SEND;	1414	REQ_SEND;
1156	}	1415	}
1157		1416
1158	void	1417	void
…		…
1160	PPCODE:	1419	PPCODE:
1161	{	1420	{
1162	dREQ;	1421	dREQ;
1163		1422
1164	req->type = EIO_READDIR;	1423	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;	1424	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1168		1425
1169	if (flags & EIO_READDIR_DENTS)	1426	if (flags & EIO_READDIR_DENTS)
1170	req->int1 |= EIO_READDIR_CUSTOM2;	1427	req->int1 |= EIO_READDIR_CUSTOM2;
1171		1428
		1429	req_set_path1 (req, pathname);
		1430
1172	REQ_SEND;	1431	REQ_SEND;
		1432	}
		1433
		1434	void
		1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	dREQ;
		1439
		1440	req->type = EIO_MKDIR;
		1441	req->int2 = mode;
		1442	req_set_path1 (req, pathname);
		1443
		1444	REQ_SEND;
1173	}	1445	}
1174		1446
1175	void	1447	void
1176	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1177	ALIAS:	1449	ALIAS:
…		…
1181	PPCODE:	1453	PPCODE:
1182	{	1454	{
1183	dREQ;	1455	dREQ;
1184		1456
1185	req->type = ix;	1457	req->type = ix;
1186	req->sv1 = newSVsv (pathname);	1458	req_set_path1 (req, pathname);
1187	req->ptr1 = SvPVbyte_nolen (req->sv1);
1188		1459
1189	REQ_SEND;	1460	REQ_SEND;
1190	}	1461	}
1191		1462
1192	void	1463	void
…		…
1195	aio_link = EIO_LINK	1466	aio_link = EIO_LINK
1196	aio_symlink = EIO_SYMLINK	1467	aio_symlink = EIO_SYMLINK
1197	aio_rename = EIO_RENAME	1468	aio_rename = EIO_RENAME
1198	PPCODE:	1469	PPCODE:
1199	{	1470	{
		1471	eio_wd wd2 = 0;
1200	dREQ;	1472	dREQ;
1201		1473
1202	req->type = ix;	1474	req->type = ix;
1203	req->sv1 = newSVsv (oldpath);	1475	req_set_path1 (req, oldpath);
1204	req->ptr1 = SvPVbyte_nolen (req->sv1);	1476	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1205	req->sv2 = newSVsv (newpath);	1477	req->int3 = (long)wd2;
1206	req->ptr2 = SvPVbyte_nolen (req->sv2);
1207		1478
1208	REQ_SEND;	1479	REQ_SEND;
1209	}	1480	}
1210		1481
1211	void	1482	void
…		…
1213	PPCODE:	1484	PPCODE:
1214	{	1485	{
1215	dREQ;	1486	dREQ;
1216		1487
1217	req->type = EIO_MKNOD;	1488	req->type = EIO_MKNOD;
1218	req->sv1 = newSVsv (pathname);
1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
1220	req->int2 = (mode_t)mode;	1489	req->int2 = (mode_t)mode;
1221	req->offs = dev;	1490	req->offs = dev;
		1491	req_set_path1 (req, pathname);
1222		1492
1223	REQ_SEND;	1493	REQ_SEND;
1224	}	1494	}
1225		1495
1226	void	1496	void
1227	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1497	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1228	ALIAS:	1498	ALIAS:
1229	aio_mtouch = EIO_MTOUCH	1499	aio_mtouch = EIO_MTOUCH
1230	aio_msync = EIO_MSYNC	1500	aio_msync = EIO_MSYNC
1231	PROTOTYPE: $$$$;$
1232	PPCODE:	1501	PPCODE:
1233	{	1502	{
1234	STRLEN svlen;	1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
1235	UV len = SvUV (length);	1505	UV len = SvUV (length);
1236	char *svptr = SvPVbyte (data, svlen);
1237		1506
1238	if (offset < 0)	1507	if (offset < 0)
1239	offset += svlen;	1508	offset += svlen;
1240		1509
1241	if (offset < 0 || offset > svlen)	1510	if (offset < 0 || offset > svlen)
…		…
1246		1515
1247	{	1516	{
1248	dREQ;	1517	dREQ;
1249		1518
1250	req->type = ix;	1519	req->type = ix;
1251	req->size = len;
1252	req->sv2 = SvREFCNT_inc (data);	1520	req->sv2 = SvREFCNT_inc (data);
1253	req->ptr2 = (char *)svptr + offset;	1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
1254	req->int1 = flags;	1523	req->int1 = flags;
1255		1524
1256	REQ_SEND;	1525	REQ_SEND;
1257	}	1526	}
1258	}	1527	}
1259		1528
1260	void	1529	void
		1530	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1531	PPCODE:
		1532	{
		1533	STRLEN svlen;
		1534	char *svptr = SvPVbyte (data, svlen);
		1535	UV len = SvUV (length);
		1536
		1537	if (offset < 0)
		1538	offset += svlen;
		1539
		1540	if (offset < 0 || offset > svlen)
		1541	croak ("offset outside of scalar");
		1542
		1543	if (!SvOK (length) || len + offset > svlen)
		1544	len = svlen - offset;
		1545
		1546	{
		1547	dREQ;
		1548
		1549	req->type = EIO_MLOCK;
		1550	req->sv2 = SvREFCNT_inc (data);
		1551	req->ptr2 = (char *)svptr + offset;
		1552	req->size = len;
		1553
		1554	REQ_SEND;
		1555	}
		1556	}
		1557
		1558	void
		1559	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1560	PPCODE:
		1561	{
		1562	dREQ;
		1563
		1564	req->type = EIO_MLOCKALL;
		1565	req->int1 = flags;
		1566
		1567	REQ_SEND;
		1568	}
		1569
		1570	void
		1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1572	PPCODE:
		1573	{
		1574	int fd = s_fileno_croak (fh, 0);
		1575	dREQ;
		1576
		1577	req->type = EIO_CUSTOM;
		1578	req->sv1 = newSVsv (fh);
		1579	req->int1 = fd;
		1580
		1581	req->feed = fiemap;
		1582	#if HAVE_FIEMAP
		1583	/* keep our fingers crossed that the next two types are 64 bit */
		1584	req->offs = start;
		1585	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1586	req->int2 = flags;
		1587	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1588	#endif
		1589
		1590	REQ_SEND;
		1591	}
		1592
		1593	void
1261	aio_busy (double delay, SV *callback=&PL_sv_undef)	1594	aio_busy (double delay, SV *callback=&PL_sv_undef)
1262	PPCODE:	1595	PPCODE:
1263	{	1596	{
1264	dREQ;	1597	dREQ;
1265		1598
…		…
1269	REQ_SEND;	1602	REQ_SEND;
1270	}	1603	}
1271		1604
1272	void	1605	void
1273	aio_group (SV *callback=&PL_sv_undef)	1606	aio_group (SV *callback=&PL_sv_undef)
1274	PROTOTYPE: ;$
1275	PPCODE:	1607	PPCODE:
1276	{	1608	{
1277	dREQ;	1609	dREQ;
1278		1610
1279	req->type = EIO_GROUP;	1611	req->type = EIO_GROUP;
…		…
1296	REQ_SEND;	1628	REQ_SEND;
1297	}	1629	}
1298		1630
1299	int	1631	int
1300	aioreq_pri (int pri = 0)	1632	aioreq_pri (int pri = 0)
1301	PROTOTYPE: ;$
1302	CODE:	1633	CODE:
1303	RETVAL = next_pri;	1634	RETVAL = next_pri;
1304	if (items > 0)	1635	if (items > 0)
1305	{	1636	{
1306	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1637	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1318	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1649	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1319	next_pri = nice;	1650	next_pri = nice;
1320		1651
1321	void	1652	void
1322	flush ()	1653	flush ()
1323	PROTOTYPE:
1324	CODE:	1654	CODE:
1325	while (eio_nreqs ())	1655	while (eio_nreqs ())
1326	{	1656	{
1327	poll_wait ();	1657	poll_wait ();
1328	poll_cb ();	1658	poll_cb ();
1329	}	1659	}
1330		1660
1331	int	1661	int
1332	poll()	1662	poll ()
1333	PROTOTYPE:
1334	CODE:	1663	CODE:
1335	poll_wait ();	1664	poll_wait ();
1336	RETVAL = poll_cb ();	1665	RETVAL = poll_cb ();
1337	OUTPUT:	1666	OUTPUT:
1338	RETVAL	1667	RETVAL
1339		1668
1340	int	1669	int
1341	poll_fileno()	1670	poll_fileno ()
1342	PROTOTYPE:
1343	CODE:	1671	CODE:
1344	RETVAL = s_epipe_fd (&respipe);	1672	RETVAL = s_epipe_fd (&respipe);
1345	OUTPUT:	1673	OUTPUT:
1346	RETVAL	1674	RETVAL
1347		1675
1348	int	1676	int
1349	poll_cb(...)	1677	poll_cb (...)
1350	PROTOTYPE:	1678	PROTOTYPE:
1351	CODE:	1679	CODE:
1352	RETVAL = poll_cb ();	1680	RETVAL = poll_cb ();
1353	OUTPUT:	1681	OUTPUT:
1354	RETVAL	1682	RETVAL
1355		1683
1356	void	1684	void
1357	poll_wait()	1685	poll_wait ()
1358	PROTOTYPE:
1359	CODE:	1686	CODE:
1360	poll_wait ();	1687	poll_wait ();
1361		1688
1362	int	1689	int
1363	nreqs()	1690	nreqs ()
1364	PROTOTYPE:
1365	CODE:	1691	CODE:
1366	RETVAL = eio_nreqs ();	1692	RETVAL = eio_nreqs ();
1367	OUTPUT:	1693	OUTPUT:
1368	RETVAL	1694	RETVAL
1369		1695
1370	int	1696	int
1371	nready()	1697	nready ()
1372	PROTOTYPE:
1373	CODE:	1698	CODE:
1374	RETVAL = eio_nready ();	1699	RETVAL = eio_nready ();
1375	OUTPUT:	1700	OUTPUT:
1376	RETVAL	1701	RETVAL
1377		1702
1378	int	1703	int
1379	npending()	1704	npending ()
1380	PROTOTYPE:
1381	CODE:	1705	CODE:
1382	RETVAL = eio_npending ();	1706	RETVAL = eio_npending ();
1383	OUTPUT:	1707	OUTPUT:
1384	RETVAL	1708	RETVAL
1385		1709
1386	int	1710	int
1387	nthreads()	1711	nthreads ()
1388	PROTOTYPE:
1389	CODE:	1712	CODE:
1390	RETVAL = eio_nthreads ();	1713	RETVAL = eio_nthreads ();
1391	OUTPUT:	1714	OUTPUT:
1392	RETVAL	1715	RETVAL
1393		1716
1394	int	1717	int
1395	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1718	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1396	PROTOTYPE: $$$$
1397	CODE:	1719	CODE:
1398	RETVAL = posix_fadvise (fh, offset, length, advice);	1720	RETVAL = posix_fadvise (fh, offset, length, advice);
1399	OUTPUT:	1721	OUTPUT:
1400	RETVAL	1722	RETVAL
1401		1723
1402	ssize_t	1724	IV
1403	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1725	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1404	PROTOTYPE: $$$$
1405	CODE:	1726	CODE:
1406	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1407	OUTPUT:	1728	OUTPUT:
1408	RETVAL	1729	RETVAL
1409		1730
1410	void	1731	void
1411	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1412	PROTOTYPE: $$$$$;$
1413	PPCODE:	1733	PPCODE:
1414	sv_unmagic (scalar, MMAP_MAGIC);	1734	sv_unmagic (scalar, MMAP_MAGIC);
1415	{	1735	{
1416	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1417	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1440	XSRETURN_YES;	1760	XSRETURN_YES;
1441	}	1761	}
1442		1762
1443	void	1763	void
1444	munmap (SV *scalar)	1764	munmap (SV *scalar)
1445	PROTOTYPE: $
1446	CODE:	1765	CODE:
1447	sv_unmagic (scalar, MMAP_MAGIC);	1766	sv_unmagic (scalar, MMAP_MAGIC);
1448		1767
1449	int	1768	int
1450	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1769	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1451	PROTOTYPE: $$$$	1770	ALIAS:
		1771	mprotect = 1
1452	CODE:	1772	CODE:
1453	{	1773	{
1454	char *addr = SvPV_nolen (scalar) + offset;	1774	STRLEN svlen;
		1775	void *addr = SvPVbyte (scalar, svlen);
		1776	size_t len = SvUV (length);
1455		1777
1456	if (!SvOK (ST (2)))	1778	if (offset < 0)
		1779	offset += svlen;
		1780
		1781	if (offset < 0 || offset > svlen)
		1782	croak ("offset outside of scalar");
		1783
		1784	if (!SvOK (length) || len + offset > svlen)
1457	length = SvCUR (scalar) - offset;	1785	len = svlen - offset;
1458		1786
1459	if (addr >= SvEND (scalar) || length <= 0)	1787	addr = (void *)(((intptr_t)addr) + offset);
1460	XSRETURN_EMPTY;	1788	eio_page_align (&addr, &len);
1461		1789
		1790	switch (ix)
		1791	{
1462	RETVAL = posix_madvise (addr, length, advice);	1792	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1793	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1794	}
1463	}	1795	}
1464	OUTPUT:	1796	OUTPUT:
1465	RETVAL	1797	RETVAL
1466		1798
1467	int	1799	int
1468	mlockall (int flags)	1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1469	PROTOTYPE: $
1470	CODE:	1801	CODE:
		1802	{
		1803	STRLEN svlen;
		1804	void *addr = SvPVbyte (scalar, svlen);
		1805	size_t len = SvUV (length);
		1806
		1807	if (offset < 0)
		1808	offset += svlen;
		1809
		1810	if (offset < 0 || offset > svlen)
		1811	croak ("offset outside of scalar");
		1812
		1813	if (!SvOK (length) || len + offset > svlen)
		1814	len = svlen - offset;
		1815
		1816	addr = (void *)(((intptr_t)addr) + offset);
		1817	eio_page_align (&addr, &len);
1471	#if _POSIX_MEMLOCK	1818	#if _POSIX_MEMLOCK_RANGE
1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1819	RETVAL = munlock (addr, len);
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	1820	#else
1478	RETVAL = -1;	1821	RETVAL = EIO_ENOSYS ();
1479	errno = ENOSYS;
1480	#endif	1822	#endif
		1823	}
1481	OUTPUT:	1824	OUTPUT:
1482	RETVAL	1825	RETVAL
1483		1826
1484	int	1827	int
1485	munlockall ()	1828	munlockall ()
1486	PROTOTYPE:
1487	CODE:	1829	CODE:
1488	#if _POSIX_MEMLOCK	1830	#if _POSIX_MEMLOCK
1489	munlockall ();	1831	munlockall ();
1490	#else	1832	#else
1491	RETVAL = -1;	1833	RETVAL = EIO_ENOSYS ();
1492	errno = ENOSYS;
1493	#endif	1834	#endif
1494	OUTPUT:	1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1840	CODE:
		1841	{
		1842	#if HAVE_LINUX_SPLICE
		1843	loff_t off_in_, off_out_;
		1844	RETVAL = splice (
		1845	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1846	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1847	length, flags
		1848	);
		1849	#else
		1850	RETVAL = EIO_ENOSYS ();
		1851	#endif
		1852	}
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int
		1857	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1858	CODE:
		1859	#if HAVE_LINUX_SPLICE
		1860	RETVAL = tee (rfh, wfh, length, flags);
		1861	#else
		1862	RETVAL = EIO_ENOSYS ();
		1863	#endif
		1864	OUTPUT:
1495	RETVAL	1865	RETVAL
1496		1866
1497	void _on_next_submit (SV *cb)	1867	void _on_next_submit (SV *cb)
1498	CODE:	1868	CODE:
1499	SvREFCNT_dec (on_next_submit);	1869	SvREFCNT_dec (on_next_submit);
1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1501		1871
1502	PROTOTYPES: DISABLE	1872	PROTOTYPES: DISABLE
1503		1873
		1874	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1875
		1876	BOOT:
		1877	{
		1878	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1879	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1880	}
		1881
		1882	void
		1883	DESTROY (SV *self)
		1884	CODE:
		1885	{
		1886	aio_wd wd = SvAIO_WD (self);
		1887	#if HAVE_AT
		1888	{
		1889	SV *callback = &PL_sv_undef;
		1890	dREQ; /* clobbers next_pri :/ */
		1891	next_pri = req->pri; /* restore next_pri */
		1892	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1893	req->type = EIO_WD_CLOSE;
		1894	req->wd = wd;
		1895	REQ_SEND;
		1896	}
		1897	#else
		1898	eio_wd_close_sync (wd);
		1899	#endif
		1900	}
		1901
1504	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1902	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1505		1903
1506	void	1904	void
1507	cancel (aio_req_ornot req)	1905	cancel (aio_req_ornot req)
1508	CODE:	1906	CODE:

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