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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 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	#ifndef ST_NODEV	127	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		128
176	#ifndef MCL_CURRENT	129	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	131	#endif
179	#ifndef MCL_FUTURE	132
180	# define MCL_FUTURE 0	133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	135	#endif
182		136
183	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	138	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
186	# else	140	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	142	# endif
189	#endif	143	#endif
190	#ifndef MAP_HUGETLB	144
191	# 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))
192	#endif	150	#endif
193	#ifndef MAP_LOCKED	151	#ifndef major
194	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
195	#endif	153	#endif
196	#ifndef MAP_NORESERVE	154	#ifndef minor
197	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif	156	#endif
205		157
206	#ifndef PAGESIZE	158	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	160	#endif
209		161
210	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	163
212	static void req_destroy (eio_req *grp);	164	static void
213	#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	/*****************************************************************************/
214		258
215	enum {	259	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	261	};
218		262
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
223		266
224	static SV *on_next_submit;	267	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	269	static int max_outstanding;
227		270
228	static s_epipe respipe;	271	static s_epipe respipe;
229		272
230	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
232		275
233	static void want_poll (void)	276	static void
		277	want_poll (void)
234	{	278	{
235	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	280	s_epipe_signal (&respipe);
237	}	281	}
238		282
239	static void done_poll (void)	283	static void
		284	done_poll (void)
240	{	285	{
241	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	287	s_epipe_drain (&respipe);
243	}	288	}
244		289
245	/* must be called at most once */	290	/* must be called at most once */
		291	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	292	req_sv (aio_req req, HV *stash)
247	{	293	{
248	if (!req->self)	294	if (!req->self)
249	{	295	{
250	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	298	}
253		299
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	301	}
256		302
257	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)
258	{	311	{
259	MAGIC *mg;	312	MAGIC *mg;
260		313
261	if (!SvROK (sv)	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	317	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	319	croak ("object of class IO::AIO::REQ expected");
266		320
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		322
269	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	324	}
271		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
272	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
273	{	339	{
274	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
275	{	341	{
276	dSP;	342	dSP;
277		343
…		…
285	FREETMPS;	351	FREETMPS;
286	LEAVE;	352	LEAVE;
287	}	353	}
288	}	354	}
289		355
		356	static void
290	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
291	{	358	{
292	eio_submit (req);	359	eio_submit (req);
293		360
294	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
295	{	362	{
…		…
302	PUTBACK;	369	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
304	}	371	}
305	}	372	}
306		373
		374	static int
307	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
308	{	376	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
313		379
314	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
315	{	381	{
		382	dSP;
		383	static SV *sv_result_cache; /* caches the result integer SV */
		384	SV *sv_result;
		385
316	ENTER;	386	ENTER;
317	SAVETMPS;	387	SAVETMPS;
318	PUSHMARK (SP);	388	PUSHMARK (SP);
319	EXTEND (SP, 1);	389	EXTEND (SP, 1);
320		390
		391	/* do not recreate the result IV from scratch each time */
		392	if (expect_true (sv_result_cache))
		393	{
		394	sv_result = sv_result_cache; sv_result_cache = 0;
		395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
		397	}
		398	else
		399	{
		400	sv_result = newSViv (req->result);
		401	SvREADONLY_on (sv_result);
		402	}
		403
321	switch (req->type)	404	switch (req->type)
322	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
323	case EIO_READDIR:	410	case EIO_READDIR:
324	{	411	{
325	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
326		413
327	if (req->result >= 0)	414	if (req->result >= 0)
…		…
415	case EIO_STATVFS:	502	case EIO_STATVFS:
416	case EIO_FSTATVFS:	503	case EIO_FSTATVFS:
417	{	504	{
418	SV *rv = &PL_sv_undef;	505	SV *rv = &PL_sv_undef;
419		506
		507	#ifndef _WIN32
420	if (req->result >= 0)	508	if (req->result >= 0)
421	{	509	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	511	HV *hv = newHV ();
424		512
…		…
434	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);
435	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);
436	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);
437	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);
438	}	526	}
		527	#endif
439		528
440	PUSHs (rv);	529	PUSHs (rv);
441	}	530	}
442		531
443	break;	532	break;
…		…
459	case EIO_NOP:	548	case EIO_NOP:
460	case EIO_BUSY:	549	case EIO_BUSY:
461	break;	550	break;
462		551
463	case EIO_READLINK:	552	case EIO_READLINK:
		553	case EIO_REALPATH:
464	if (req->result > 0)	554	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	555	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	556	break;
467		557
468	case EIO_STAT:	558	case EIO_STAT:
469	case EIO_LSTAT:	559	case EIO_LSTAT:
470	case EIO_FSTAT:	560	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	561	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		562
472	PL_laststatval = req->result;	563	if (!(PL_laststatval = req->result))
		564	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	565	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	566
		567	PUSHs (sv_result);
		568	break;
		569
		570	case EIO_SEEK:
		571	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
475	break;	572	break;
476		573
477	case EIO_READ:	574	case EIO_READ:
478	{	575	{
479	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));
480	*SvEND (req->sv2) = 0;	577	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	578	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	579	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	580	PUSHs (sv_result);
484	}	581	}
485	break;	582	break;
486		583
487	case EIO_DUP2:	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
		624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	625	if (req->result > 0)
489	req->result = 0;	626	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	627	/* FALLTHROUGH */
491		628
492	default:	629	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	630	PUSHs (sv_result);
494	break;	631	break;
495	}	632	}
496		633
497	errno = req->errorno;	634	errno = req->errorno;
498		635
499	PUTBACK;	636	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	637	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	638	SPAGAIN;
502		639
		640	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		641	SvREFCNT_dec (sv_result);
		642	else
		643	sv_result_cache = sv_result;
		644
503	FREETMPS;	645	FREETMPS;
504	LEAVE;	646	LEAVE;
505		647
506	PUTBACK;	648	PUTBACK;
507	}	649	}
508		650
509	return !!SvTRUE (ERRSV);	651	return !!SvTRUE (ERRSV);
510	}	652	}
511		653
		654	static void
512	static void req_destroy (aio_req req)	655	req_destroy (aio_req req)
513	{	656	{
514	if (req->self)	657	if (req->self)
515	{	658	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	659	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	660	SvREFCNT_dec (req->self);
518	}	661	}
519		662
520	SvREFCNT_dec (req->sv1);	663	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	664	SvREFCNT_dec (req->sv2);
		665	SvREFCNT_dec (req->sv3);
		666	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	667	SvREFCNT_dec (req->callback);
523		668
524	Safefree (req);	669	free (req);
525	}	670	}
526		671
		672	static void
527	static void req_cancel_subs (aio_req grp)	673	req_cancel_subs (aio_req grp)
528	{	674	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	675	if (grp->type != EIO_GROUP)
532	return;	676	return;
533		677
534	SvREFCNT_dec (grp->sv2);	678	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	679	grp->sv2 = 0;
536		680
537	eio_grp_cancel (grp);	681	eio_grp_cancel (grp);
538	}	682	}
539		683
540	static void	684	static void ecb_cold
541	create_respipe (void)	685	create_respipe (void)
542	{	686	{
543	if (s_epipe_renew (&respipe))	687	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	688	croak ("IO::AIO: unable to initialize result pipe");
545	}	689	}
546		690
547	static void poll_wait (void)	691	static void
		692	poll_wait (void)
548	{	693	{
549	while (eio_nreqs ())	694	while (eio_nreqs ())
550	{	695	{
551	int size;	696	int size;
552		697
…		…
561		706
562	s_epipe_wait (&respipe);	707	s_epipe_wait (&respipe);
563	}	708	}
564	}	709	}
565		710
566	static int poll_cb (void)	711	static int
		712	poll_cb (void)
567	{	713	{
568	for (;;)	714	for (;;)
569	{	715	{
570	int res = eio_poll ();	716	int res = eio_poll ();
571		717
…		…
577		723
578	poll_wait ();	724	poll_wait ();
579	}	725	}
580	}	726	}
581		727
582	static void atfork_child (void)	728	static void ecb_cold
		729	reinit (void)
583	{	730	{
584	create_respipe ();	731	create_respipe ();
		732
		733	if (eio_init (want_poll, done_poll) < 0)
		734	croak ("IO::AIO: unable to initialise eio library");
585	}	735	}
586		736
587	/*****************************************************************************/	737	/*****************************************************************************/
588		738
589	#if !_POSIX_MAPPED_FILES	739	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
591	# 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
592	#endif	751	#endif
593		752
594	#define MMAP_MAGIC PERL_MAGIC_ext	753	#define MMAP_MAGIC PERL_MAGIC_ext
595		754
596	static int	755	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	757	{
599	int old_errno = errno;	758	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	760	errno = old_errno;
602		761
603	mg->mg_obj = 0; /* just in case */	762	mg->mg_obj = 0; /* just in case */
604		763
605	SvREADONLY_off (sv);	764	SvREADONLY_off (sv);
		765
		766	if (SvPVX (sv) != mg->mg_ptr)
		767	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		768
606	SvCUR_set (sv, 0);	769	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	770	SvPVX (sv) = 0;
609	SvOK_off (sv);	771	SvOK_off (sv);
610		772
611	return 0;	773	return 0;
612	}	774	}
…		…
622	{	784	{
623	SvGETMAGIC (cb_sv);	785	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	786	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	787	}
626		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
627	#define dREQ \	809	#define dREQ \
628	SV *cb_cv; \	810	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		811
642	#define REQ_SEND \	812	#define REQ_SEND \
643	PUTBACK; \	813	PUTBACK; \
644	req_submit (req); \	814	req_submit (req); \
645	SPAGAIN; \	815	SPAGAIN; \
646	\	816	\
647	if (GIMME_V != G_VOID) \	817	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	818	XPUSHs (req_sv (req, aio_req_stash));
649		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
650	MODULE = IO::AIO PACKAGE = IO::AIO	886	MODULE = IO::AIO PACKAGE = IO::AIO
651		887
652	PROTOTYPES: ENABLE	888	PROTOTYPES: ENABLE
653		889
654	BOOT:	890	BOOT:
…		…
658	IV iv;	894	IV iv;
659	} *civ, const_iv[] = {	895	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	896	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	897	# define const_iv(name) { # name, (IV) name },
662	# 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)
663	const_iv (EXDEV)	903	const_iv (EXDEV)
664	const_iv (ENOSYS)	904	const_iv (EBADR)
		905
665	const_iv (O_RDONLY)	906	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	907	const_iv (O_WRONLY)
		908	const_iv (O_RDWR)
667	const_iv (O_CREAT)	909	const_iv (O_CREAT)
668	const_iv (O_TRUNC)	910	const_iv (O_TRUNC)
669	#ifndef _WIN32	911	const_iv (O_EXCL)
		912	const_iv (O_APPEND)
		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
670	const_iv (S_IFIFO)	930	const_iv (S_IFIFO)
671	#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
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	940	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	941	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	942	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	943	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	944	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	945	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		946
		947	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		948	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		949	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		950	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		951	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678		952
679	const_iv (ST_RDONLY)	953	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	954	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	955	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	956	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	961	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	962	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	963	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	964	const_iv (ST_RELATIME)
691		965
		966	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	967	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	968	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	969	const_iv (PROT_WRITE)
696		970
697	/*const_iv (MAP_FIXED)*/	971	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	972	const_iv (MAP_PRIVATE)
…		…
704	const_iv (MAP_LOCKED)	978	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	979	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	980	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	981	const_iv (MAP_NONBLOCK)
708		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
709	const_iv (MCL_FUTURE)	1011	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	1012	const_eio (MCL_CURRENT)
711		1013
712	const_eio (MS_ASYNC)	1014	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	1015	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	1016	const_eio (MS_SYNC)
715		1017
716	const_eio (MT_MODIFY)	1018	const_eio (MT_MODIFY)
717		1019
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1020	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	1021	const_eio (SYNC_FILE_RANGE_WRITE)
720	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)
721		1026
722	const_eio (READDIR_DENTS)	1027	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	1028	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	1029	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1030	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1041	};
737		1042
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1043	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1044	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	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);
741		1047
742	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--)
743	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1050
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1052
747	create_respipe ();	1053	reinit ();
748
749	if (eio_init (want_poll, done_poll) < 0)
750	croak ("IO::AIO: unable to initialise eio library");
751
752	/* atfork child called in fifo order, so before eio's handler */
753	X_THREAD_ATFORK (0, 0, atfork_child);
754	}	1054	}
755		1055
756	void	1056	void
		1057	reinit ()
		1058	PROTOTYPE:
		1059
		1060	void
757	max_poll_reqs (int nreqs)	1061	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1062	PROTOTYPE: $
759	CODE:	1063	CODE:
760	eio_set_max_poll_reqs (nreqs);	1064	eio_set_max_poll_reqs (nreqs);
761		1065
762	void	1066	void
…		…
764	PROTOTYPE: $	1068	PROTOTYPE: $
765	CODE:	1069	CODE:
766	eio_set_max_poll_time (nseconds);	1070	eio_set_max_poll_time (nseconds);
767		1071
768	void	1072	void
769	min_parallel (int nthreads)	1073	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1074	PROTOTYPE: $
771	CODE:	1075	CODE:
772	eio_set_min_parallel (nthreads);	1076	eio_set_min_parallel (nthreads);
773		1077
774	void	1078	void
775	max_parallel (int nthreads)	1079	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1080	PROTOTYPE: $
777	CODE:	1081	CODE:
778	eio_set_max_parallel (nthreads);	1082	eio_set_max_parallel (nthreads);
779		1083
780	void	1084	void
781	max_idle (int nthreads)	1085	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1086	PROTOTYPE: $
783	CODE:	1087	CODE:
784	eio_set_max_idle (nthreads);	1088	eio_set_max_idle (nthreads);
785		1089
786	void	1090	void
		1091	idle_timeout (unsigned int seconds)
		1092	PROTOTYPE: $
		1093	CODE:
		1094	eio_set_idle_timeout (seconds);
		1095
		1096	void
787	max_outstanding (int maxreqs)	1097	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1098	PROTOTYPE: $
789	CODE:	1099	CODE:
790	max_outstanding = maxreqs;	1100	max_outstanding = maxreqs;
791		1101
792	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
793	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)
794	PROTOTYPE: $$$;$
795	PPCODE:	1116	PPCODE:
796	{	1117	{
797	dREQ;	1118	dREQ;
798		1119
799	req->type = EIO_OPEN;	1120	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1121	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1122	req->int1 = flags;
803	req->int2 = mode;	1123	req->int2 = mode;
804		1124
805	REQ_SEND;	1125	REQ_SEND;
806	}	1126	}
807		1127
808	void	1128	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1130	ALIAS:
812	aio_fsync = EIO_FSYNC	1131	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1132	aio_fdatasync = EIO_FDATASYNC
		1133	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1134	PPCODE:
815	{	1135	{
816	int fd = s_fileno_croak (fh, 0);	1136	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1137	dREQ;
818		1138
819	req->type = ix;	1139	req->type = ix;
820	req->sv1 = newSVsv (fh);	1140	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1141	req->int1 = fd;
822		1142
823	REQ_SEND (req);	1143	REQ_SEND;
824	}	1144	}
825		1145
826	void	1146	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1148	PPCODE:
830	{	1149	{
831	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1151	dREQ;
833		1152
834	req->type = EIO_SYNC_FILE_RANGE;	1153	req->type = EIO_SYNC_FILE_RANGE;
835	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
836	req->int1 = fd;	1155	req->int1 = fd;
837	req->offs = offset;	1156	req->offs = offset;
838	req->size = nbytes;	1157	req->size = nbytes;
839	req->int2 = flags;	1158	req->int2 = flags;
840		1159
841	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;
842	}	1178	}
843		1179
844	void	1180	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1182	PPCODE:
848	{	1183	{
849	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 */
850	int fd = s_fileno_croak (fh, 0);	1185	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1186	dREQ;
852		1187
853	if (close_pipe < 0)	1188	if (expect_false (close_fd < 0))
854	{	1189	{
855	int pipefd [2];	1190	int pipefd [2];
856		1191
		1192	if (
		1193	#ifdef _WIN32
		1194	_pipe (pipefd, 1, _O_BINARY) < 0
		1195	#else
857	if (pipe (pipefd) < 0	1196	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| 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	)
860	abort (); /*D*/	1201	abort (); /*D*/
861		1202
862	close_pipe = pipefd [0];	1203	close_fd = pipefd [0];
863	}	1204	}
864		1205
865	req->type = EIO_DUP2;	1206	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1207	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1208	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1209	req->int2 = fd;
869		1210
870	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;
871	}	1228	}
872		1229
873	void	1230	void
874	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)
875	ALIAS:	1232	ALIAS:
876	aio_read = EIO_READ	1233	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1234	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1235	PPCODE:
880	{	1236	{
881	STRLEN svlen;	1237	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1238	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1239	char *svptr = SvPVbyte (data, svlen);
…		…
897	}	1253	}
898	else	1254	else
899	{	1255	{
900	/* read: check type and grow scalar as necessary */	1256	/* read: check type and grow scalar as necessary */
901	SvUPGRADE (data, SVt_PV);	1257	SvUPGRADE (data, SVt_PV);
		1258	if (SvLEN (data) >= SvCUR (data))
902	svptr = SvGROW (data, len + dataoffset + 1);	1259	svptr = SvGROW (data, len + dataoffset + 1);
		1260	else if (SvCUR (data) < len + dataoffset)
		1261	croak ("length + dataoffset outside of scalar, and cannot grow");
903	}	1262	}
904		1263
905	{	1264	{
906	dREQ;	1265	dREQ;
907		1266
…		…
923	REQ_SEND;	1282	REQ_SEND;
924	}	1283	}
925	}	1284	}
926		1285
927	void	1286	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
929	PROTOTYPE: $$;$	1288	ALIAS:
		1289	aio_readlink = EIO_READLINK
		1290	aio_realpath = EIO_REALPATH
930	PPCODE:	1291	PPCODE:
931	{	1292	{
932	SV *data;
933	dREQ;	1293	dREQ;
934		1294
935	req->type = EIO_READLINK;	1295	req->type = ix;
936	req->sv1 = newSVsv (path);	1296	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1297
939	REQ_SEND;	1298	REQ_SEND;
940	}	1299	}
941		1300
942	void	1301	void
943	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)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1303	PPCODE:
946	{	1304	{
947	int ifd = s_fileno_croak (in_fh , 0);	1305	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1306	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1307	dREQ;
950		1308
951	req->type = EIO_SENDFILE;	1309	req->type = EIO_SENDFILE;
952	req->sv1 = newSVsv (out_fh);	1310	req->sv1 = newSVsv (out_fh);
953	req->int1 = ofd;	1311	req->int1 = ofd;
…		…
959	REQ_SEND;	1317	REQ_SEND;
960	}	1318	}
961		1319
962	void	1320	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1322	PPCODE:
966	{	1323	{
967	int fd = s_fileno_croak (fh, 0);	1324	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1325	dREQ;
969		1326
970	req->type = EIO_READAHEAD;	1327	req->type = EIO_READAHEAD;
971	req->sv1 = newSVsv (fh);	1328	req->sv1 = newSVsv (fh);
972	req->int1 = fd;	1329	req->int1 = fd;
…		…
984	aio_statvfs = EIO_STATVFS	1341	aio_statvfs = EIO_STATVFS
985	PPCODE:	1342	PPCODE:
986	{	1343	{
987	dREQ;	1344	dREQ;
988		1345
989	req->sv1 = newSVsv (fh_or_path);	1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
990
991	if (SvPOK (req->sv1))
992	{
993	req->type = ix;
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995	}
996	else
997	{
998	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
999	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1000	}
1001		1347
1002	REQ_SEND;	1348	REQ_SEND;
1003	}	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
1004		1366
1005	void	1367	void
1006	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)
1007	PPCODE:	1369	PPCODE:
1008	{	1370	{
1009	dREQ;	1371	dREQ;
1010		1372
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1374	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1014
1015	if (SvPOK (req->sv1))
1016	{
1017	req->type = EIO_UTIME;
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
1019	}
1020	else
1021	{
1022	req->type = EIO_FUTIME;
1023	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1024	}
1025		1376
1026	REQ_SEND;	1377	REQ_SEND;
1027	}	1378	}
1028		1379
1029	void	1380	void
1030	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)
1031	PPCODE:	1382	PPCODE:
1032	{	1383	{
1033	dREQ;	1384	dREQ;
1034		1385
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1387	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_TRUNCATE;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FTRUNCATE;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1388
1049	REQ_SEND;	1389	REQ_SEND;
1050	}	1390	}
1051		1391
1052	void	1392	void
1053	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)
1054	ALIAS:
1055	aio_chmod = EIO_CHMOD
1056	aio_mkdir = EIO_MKDIR
1057	PPCODE:	1394	PPCODE:
1058	{	1395	{
1059	dREQ;	1396	dREQ;
1060		1397
1061	req->int2 = mode;	1398	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1399	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1063
1064	if (SvPOK (req->sv1))
1065	{
1066	req->type = ix;
1067	req->ptr1 = SvPVbyte_nolen (req->sv1);
1068	}
1069	else
1070	{
1071	req->type = EIO_FCHMOD;
1072	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1073	}
1074		1400
1075	REQ_SEND;	1401	REQ_SEND;
1076	}	1402	}
1077		1403
1078	void	1404	void
…		…
1081	{	1407	{
1082	dREQ;	1408	dREQ;
1083		1409
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1411	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1087
1088	if (SvPOK (req->sv1))
1089	{
1090	req->type = EIO_CHOWN;
1091	req->ptr1 = SvPVbyte_nolen (req->sv1);
1092	}
1093	else
1094	{
1095	req->type = EIO_FCHOWN;
1096	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1097	}
1098		1413
1099	REQ_SEND;	1414	REQ_SEND;
1100	}	1415	}
1101		1416
1102	void	1417	void
…		…
1104	PPCODE:	1419	PPCODE:
1105	{	1420	{
1106	dREQ;	1421	dREQ;
1107		1422
1108	req->type = EIO_READDIR;	1423	req->type = EIO_READDIR;
1109	req->sv1 = newSVsv (pathname);
1110	req->ptr1 = SvPVbyte_nolen (req->sv1);
1111	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1424	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1425
1113	if (flags & EIO_READDIR_DENTS)	1426	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1427	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1428
		1429	req_set_path1 (req, pathname);
		1430
1116	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;
1117	}	1445	}
1118		1446
1119	void	1447	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1121	ALIAS:	1449	ALIAS:
…		…
1125	PPCODE:	1453	PPCODE:
1126	{	1454	{
1127	dREQ;	1455	dREQ;
1128		1456
1129	req->type = ix;	1457	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1458	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1459
1133	REQ_SEND;	1460	REQ_SEND;
1134	}	1461	}
1135		1462
1136	void	1463	void
…		…
1139	aio_link = EIO_LINK	1466	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1467	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1468	aio_rename = EIO_RENAME
1142	PPCODE:	1469	PPCODE:
1143	{	1470	{
		1471	eio_wd wd2 = 0;
1144	dREQ;	1472	dREQ;
1145		1473
1146	req->type = ix;	1474	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1475	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1476	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1477	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1478
1152	REQ_SEND;	1479	REQ_SEND;
1153	}	1480	}
1154		1481
1155	void	1482	void
…		…
1157	PPCODE:	1484	PPCODE:
1158	{	1485	{
1159	dREQ;	1486	dREQ;
1160		1487
1161	req->type = EIO_MKNOD;	1488	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1489	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1490	req->offs = dev;
		1491	req_set_path1 (req, pathname);
1166		1492
1167	REQ_SEND;	1493	REQ_SEND;
1168	}	1494	}
1169		1495
1170	void	1496	void
1171	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)
1172	ALIAS:	1498	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1499	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1500	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1501	PPCODE:
1177	{	1502	{
1178	STRLEN svlen;	1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1505	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);
1181		1506
1182	if (offset < 0)	1507	if (offset < 0)
1183	offset += svlen;	1508	offset += svlen;
1184		1509
1185	if (offset < 0 || offset > svlen)	1510	if (offset < 0 || offset > svlen)
…		…
1190		1515
1191	{	1516	{
1192	dREQ;	1517	dREQ;
1193		1518
1194	req->type = ix;	1519	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1520	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
1198	req->int1 = flags;	1523	req->int1 = flags;
1199		1524
1200	REQ_SEND;	1525	REQ_SEND;
1201	}	1526	}
1202	}	1527	}
1203		1528
1204	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
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1594	aio_busy (double delay, SV *callback=&PL_sv_undef)
1206	PPCODE:	1595	PPCODE:
1207	{	1596	{
1208	dREQ;	1597	dREQ;
1209		1598
…		…
1213	REQ_SEND;	1602	REQ_SEND;
1214	}	1603	}
1215		1604
1216	void	1605	void
1217	aio_group (SV *callback=&PL_sv_undef)	1606	aio_group (SV *callback=&PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1607	PPCODE:
1220	{	1608	{
1221	dREQ;	1609	dREQ;
1222		1610
1223	req->type = EIO_GROUP;	1611	req->type = EIO_GROUP;
…		…
1240	REQ_SEND;	1628	REQ_SEND;
1241	}	1629	}
1242		1630
1243	int	1631	int
1244	aioreq_pri (int pri = 0)	1632	aioreq_pri (int pri = 0)
1245	PROTOTYPE: ;$
1246	CODE:	1633	CODE:
1247	RETVAL = next_pri;	1634	RETVAL = next_pri;
1248	if (items > 0)	1635	if (items > 0)
1249	{	1636	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1637	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1649	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1650	next_pri = nice;
1264		1651
1265	void	1652	void
1266	flush ()	1653	flush ()
1267	PROTOTYPE:
1268	CODE:	1654	CODE:
1269	while (eio_nreqs ())	1655	while (eio_nreqs ())
1270	{	1656	{
1271	poll_wait ();	1657	poll_wait ();
1272	poll_cb ();	1658	poll_cb ();
1273	}	1659	}
1274		1660
1275	int	1661	int
1276	poll()	1662	poll ()
1277	PROTOTYPE:
1278	CODE:	1663	CODE:
1279	poll_wait ();	1664	poll_wait ();
1280	RETVAL = poll_cb ();	1665	RETVAL = poll_cb ();
1281	OUTPUT:	1666	OUTPUT:
1282	RETVAL	1667	RETVAL
1283		1668
1284	int	1669	int
1285	poll_fileno()	1670	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1671	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1672	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1673	OUTPUT:
1290	RETVAL	1674	RETVAL
1291		1675
1292	int	1676	int
1293	poll_cb(...)	1677	poll_cb (...)
1294	PROTOTYPE:	1678	PROTOTYPE:
1295	CODE:	1679	CODE:
1296	RETVAL = poll_cb ();	1680	RETVAL = poll_cb ();
1297	OUTPUT:	1681	OUTPUT:
1298	RETVAL	1682	RETVAL
1299		1683
1300	void	1684	void
1301	poll_wait()	1685	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1686	CODE:
1304	poll_wait ();	1687	poll_wait ();
1305		1688
1306	int	1689	int
1307	nreqs()	1690	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1691	CODE:
1310	RETVAL = eio_nreqs ();	1692	RETVAL = eio_nreqs ();
1311	OUTPUT:	1693	OUTPUT:
1312	RETVAL	1694	RETVAL
1313		1695
1314	int	1696	int
1315	nready()	1697	nready ()
1316	PROTOTYPE:
1317	CODE:	1698	CODE:
1318	RETVAL = eio_nready ();	1699	RETVAL = eio_nready ();
1319	OUTPUT:	1700	OUTPUT:
1320	RETVAL	1701	RETVAL
1321		1702
1322	int	1703	int
1323	npending()	1704	npending ()
1324	PROTOTYPE:
1325	CODE:	1705	CODE:
1326	RETVAL = eio_npending ();	1706	RETVAL = eio_npending ();
1327	OUTPUT:	1707	OUTPUT:
1328	RETVAL	1708	RETVAL
1329		1709
1330	int	1710	int
1331	nthreads()	1711	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1712	CODE:
1334	RETVAL = eio_nthreads ();	1713	RETVAL = eio_nthreads ();
1335	OUTPUT:	1714	OUTPUT:
1336	RETVAL	1715	RETVAL
1337		1716
1338	int	1717	int
1339	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)
1340	PROTOTYPE: $$$$
1341	CODE:	1719	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1720	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1721	OUTPUT:
1348	RETVAL	1722	RETVAL
1349		1723
1350	ssize_t	1724	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1725	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1726	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1728	OUTPUT:
1356	RETVAL	1729	RETVAL
1357		1730
1358	void	1731	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1733	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1734	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1735	{
1364	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;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1738	if (addr == (void *)-1)
1367	XSRETURN_NO;	1739	XSRETURN_NO;
1368		1740
		1741	sv_force_normal (scalar);
		1742
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1743	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1744	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1745	->mg_obj = (SV *)length;
1372		1746
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1747	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1748
1374	if (!(prot & PROT_WRITE))	1749	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1750	SvREADONLY_on (scalar);
		1751
		1752	if (SvLEN (scalar))
		1753	Safefree (SvPVX (scalar));
1376		1754
1377	SvPVX (scalar) = (char *)addr;	1755	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1756	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1757	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1758	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1760	XSRETURN_YES;
1383	}	1761	}
1384		1762
1385	void	1763	void
1386	munmap (SV *scalar)	1764	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1765	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1766	sv_unmagic (scalar, MMAP_MAGIC);
1390		1767
1391	int	1768	int
1392	mlockall (int flags)	1769	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1770	ALIAS:
		1771	mprotect = 1
1394	CODE:	1772	CODE:
		1773	{
		1774	STRLEN svlen;
		1775	void *addr = SvPVbyte (scalar, svlen);
		1776	size_t len = SvUV (length);
		1777
		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)
		1785	len = svlen - offset;
		1786
		1787	addr = (void *)(((intptr_t)addr) + offset);
		1788	eio_page_align (&addr, &len);
		1789
		1790	switch (ix)
		1791	{
		1792	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1793	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1794	}
		1795	}
		1796	OUTPUT:
		1797	RETVAL
		1798
		1799	int
		1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		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);
1395	#if _POSIX_MEMLOCK	1818	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1819	RETVAL = munlock (addr, len);
1397	extern int mallopt (int, int);
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399	#endif
1400	mlockall (flags);
1401	#else	1820	#else
1402	RETVAL = -1;	1821	RETVAL = EIO_ENOSYS ();
1403	errno = ENOSYS;
1404	#endif	1822	#endif
		1823	}
1405	OUTPUT:	1824	OUTPUT:
1406	RETVAL	1825	RETVAL
1407		1826
1408	int	1827	int
1409	munlockall ()	1828	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1829	CODE:
1412	#if _POSIX_MEMLOCK	1830	#if _POSIX_MEMLOCK
1413	munlockall ();	1831	munlockall ();
1414	#else	1832	#else
1415	RETVAL = -1;	1833	RETVAL = EIO_ENOSYS ();
1416	errno = ENOSYS;
1417	#endif	1834	#endif
1418	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:
1419	RETVAL	1865	RETVAL
1420		1866
1421	void _on_next_submit (SV *cb)	1867	void _on_next_submit (SV *cb)
1422	CODE:	1868	CODE:
1423	SvREFCNT_dec (on_next_submit);	1869	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		1871
1426	PROTOTYPES: DISABLE	1872	PROTOTYPES: DISABLE
1427		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
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1902	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		1903
1430	void	1904	void
1431	cancel (aio_req_ornot req)	1905	cancel (aio_req_ornot req)
1432	CODE:	1906	CODE:

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