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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 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
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	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (!fiemap->fm_mapped_extents)
		200	break; /* if file has no segments, we are done */
		201
		202	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		203	break; /* autosizing successful, we are done */
		204
		205	fiemap->fm_flags = req->int2;
		206	fiemap->fm_extent_count = 0;
		207
		208	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		209	return;
		210
		211	count = fiemap->fm_mapped_extents;
		212
		213	free (fiemap);
		214	}
		215
		216	req->result = 0;
		217
		218	#else
		219	errno = ENOSYS;
		220	#endif
		221	}
		222
		223	/*****************************************************************************/
239		224
240	enum {	225	enum {
241	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	226	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
242	};	227	};
243		228
244	#include "libeio/eio.c"
245
246	typedef eio_req *aio_req;	229	typedef eio_req *aio_req;
247	typedef eio_req *aio_req_ornot;	230	typedef eio_req *aio_req_ornot;
		231	typedef eio_wd aio_wd;
248		232
249	static SV *on_next_submit;	233	static SV *on_next_submit;
250	static int next_pri = EIO_PRI_DEFAULT;	234	static int next_pri = EIO_PRI_DEFAULT;
251	static int max_outstanding;	235	static int max_outstanding;
252		236
253	static s_epipe respipe;	237	static s_epipe respipe;
254		238
255	static void req_destroy (aio_req req);	239	static void req_destroy (aio_req req);
256	static void req_cancel (aio_req req);	240	static void req_cancel (aio_req req);
257		241
258	static void want_poll (void)	242	static void
		243	want_poll (void)
259	{	244	{
260	/* write a dummy byte to the pipe so fh becomes ready */	245	/* write a dummy byte to the pipe so fh becomes ready */
261	s_epipe_signal (&respipe);	246	s_epipe_signal (&respipe);
262	}	247	}
263		248
264	static void done_poll (void)	249	static void
		250	done_poll (void)
265	{	251	{
266	/* read any signals sent by the worker threads */	252	/* read any signals sent by the worker threads */
267	s_epipe_drain (&respipe);	253	s_epipe_drain (&respipe);
268	}	254	}
269		255
270	/* must be called at most once */	256	/* must be called at most once */
		257	static SV *
271	static SV *req_sv (aio_req req, HV *stash)	258	req_sv (aio_req req, HV *stash)
272	{	259	{
273	if (!req->self)	260	if (!req->self)
274	{	261	{
275	req->self = (SV *)newHV ();	262	req->self = (SV *)newHV ();
276	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	263	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
277	}	264	}
278		265
279	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	266	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
280	}	267	}
281		268
282	static aio_req SvAIO_REQ (SV *sv)	269	static SV *
		270	newSVaio_wd (aio_wd wd)
		271	{
		272	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		273	}
		274
		275	static aio_req
		276	SvAIO_REQ (SV *sv)
283	{	277	{
284	MAGIC *mg;	278	MAGIC *mg;
285		279
286	if (!SvROK (sv)	280	if (!SvROK (sv)
		281	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
287	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	282	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
288	&& SvSTASH (SvRV (sv)) != aio_req_stash	283	&& SvSTASH (SvRV (sv)) != aio_req_stash
289	&& !sv_derived_from (sv, "IO::AIO::REQ")))	284	&& !sv_derived_from (sv, "IO::AIO::REQ")))
290	croak ("object of class IO::AIO::REQ expected");	285	croak ("object of class IO::AIO::REQ expected");
291		286
292	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	287	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
293		288
294	return mg ? (aio_req)mg->mg_ptr : 0;	289	return mg ? (aio_req)mg->mg_ptr : 0;
295	}	290	}
296		291
		292	static aio_wd
		293	SvAIO_WD (SV *sv)
		294	{
		295	if (!SvROK (sv)
		296	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		297	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		298	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		299
		300	return (aio_wd)(long)SvIVX (SvRV (sv));
		301	}
		302
		303	static void
297	static void aio_grp_feed (aio_req grp)	304	aio_grp_feed (aio_req grp)
298	{	305	{
299	if (grp->sv2 && SvOK (grp->sv2))	306	if (grp->sv2 && SvOK (grp->sv2))
300	{	307	{
301	dSP;	308	dSP;
302		309
…		…
310	FREETMPS;	317	FREETMPS;
311	LEAVE;	318	LEAVE;
312	}	319	}
313	}	320	}
314		321
		322	static void
315	static void req_submit (eio_req *req)	323	req_submit (eio_req *req)
316	{	324	{
317	eio_submit (req);	325	eio_submit (req);
318		326
319	if (expect_false (on_next_submit))	327	if (expect_false (on_next_submit))
320	{	328	{
…		…
327	PUTBACK;	335	PUTBACK;
328	call_sv (cb, G_DISCARD | G_EVAL);	336	call_sv (cb, G_DISCARD | G_EVAL);
329	}	337	}
330	}	338	}
331		339
		340	static int
332	static int req_invoke (eio_req *req)	341	req_invoke (eio_req *req)
333	{	342	{
334	if (req->flags & FLAG_SV2_RO_OFF)	343	if (req->flags & FLAG_SV2_RO_OFF)
335	SvREADONLY_off (req->sv2);	344	SvREADONLY_off (req->sv2);
336		345
337	if (!EIO_CANCELLED (req) && req->callback)	346	if (!EIO_CANCELLED (req) && req->callback)
…		…
348	/* do not recreate the result IV from scratch each time */	357	/* do not recreate the result IV from scratch each time */
349	if (expect_true (sv_result_cache))	358	if (expect_true (sv_result_cache))
350	{	359	{
351	sv_result = sv_result_cache; sv_result_cache = 0;	360	sv_result = sv_result_cache; sv_result_cache = 0;
352	SvIV_set (sv_result, req->result);	361	SvIV_set (sv_result, req->result);
		362	SvIOK_only (sv_result);
353	}	363	}
354	else	364	else
355	{	365	{
356	sv_result = newSViv (req->result);	366	sv_result = newSViv (req->result);
357	SvREADONLY_on (sv_result);	367	SvREADONLY_on (sv_result);
358	}	368	}
359		369
360	switch (req->type)	370	switch (req->type)
361	{	371	{
		372	case EIO_WD_OPEN:
		373	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		374	break;
		375
362	case EIO_READDIR:	376	case EIO_READDIR:
363	{	377	{
364	SV *rv = &PL_sv_undef;	378	SV *rv = &PL_sv_undef;
365		379
366	if (req->result >= 0)	380	if (req->result >= 0)
…		…
454	case EIO_STATVFS:	468	case EIO_STATVFS:
455	case EIO_FSTATVFS:	469	case EIO_FSTATVFS:
456	{	470	{
457	SV *rv = &PL_sv_undef;	471	SV *rv = &PL_sv_undef;
458		472
		473	#ifndef _WIN32
459	if (req->result >= 0)	474	if (req->result >= 0)
460	{	475	{
461	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	476	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
462	HV *hv = newHV ();	477	HV *hv = newHV ();
463		478
…		…
473	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	488	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
474	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	489	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
475	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	490	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
476	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	491	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
477	}	492	}
		493	#endif
478		494
479	PUSHs (rv);	495	PUSHs (rv);
480	}	496	}
481		497
482	break;	498	break;
…		…
498	case EIO_NOP:	514	case EIO_NOP:
499	case EIO_BUSY:	515	case EIO_BUSY:
500	break;	516	break;
501		517
502	case EIO_READLINK:	518	case EIO_READLINK:
		519	case EIO_REALPATH:
503	if (req->result > 0)	520	if (req->result > 0)
504	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	521	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
505	break;	522	break;
506		523
507	case EIO_STAT:	524	case EIO_STAT:
508	case EIO_LSTAT:	525	case EIO_LSTAT:
509	case EIO_FSTAT:	526	case EIO_FSTAT:
510	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	527	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		528
511	PL_laststatval = req->result;	529	if (!(PL_laststatval = req->result))
		530	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
512	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	531	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		532
513	PUSHs (sv_result);	533	PUSHs (sv_result);
		534	break;
		535
		536	case EIO_SEEK:
		537	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
514	break;	538	break;
515		539
516	case EIO_READ:	540	case EIO_READ:
517	{	541	{
518	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	542	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
521	SvSETMAGIC (req->sv2);	545	SvSETMAGIC (req->sv2);
522	PUSHs (sv_result);	546	PUSHs (sv_result);
523	}	547	}
524	break;	548	break;
525		549
		550	case EIO_CUSTOM:
		551	if (req->feed == fiemap)
		552	{
		553	#if HAVE_FIEMAP
		554	if (!req->result)
		555	{
		556	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		557
		558	if (fiemap->fm_extent_count)
		559	{
		560	AV *av = newAV ();
		561	int i;
		562
		563	while (fiemap->fm_mapped_extents)
		564	{
		565	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		566	AV *ext_av = newAV ();
		567
		568	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		569	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		570	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		571	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		572
		573	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		574	}
		575
		576	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		577	}
		578	else
		579	{
		580	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		581	PUSHs (sv_result);
		582	}
		583	}
		584	#endif
		585	}
		586	else
		587	PUSHs (sv_result);
		588	break;
		589
526	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	590	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
527	if (req->result > 0)	591	if (req->result > 0)
528	SvIV_set (sv_result, 0);	592	SvIV_set (sv_result, 0);
529	/* FALLTHROUGH */	593	/* FALLTHROUGH */
530		594
531	default:	595	default:
…		…
551	}	615	}
552		616
553	return !!SvTRUE (ERRSV);	617	return !!SvTRUE (ERRSV);
554	}	618	}
555		619
		620	static void
556	static void req_destroy (aio_req req)	621	req_destroy (aio_req req)
557	{	622	{
558	if (req->self)	623	if (req->self)
559	{	624	{
560	sv_unmagic (req->self, PERL_MAGIC_ext);	625	sv_unmagic (req->self, PERL_MAGIC_ext);
561	SvREFCNT_dec (req->self);	626	SvREFCNT_dec (req->self);
562	}	627	}
563		628
564	SvREFCNT_dec (req->sv1);	629	SvREFCNT_dec (req->sv1);
565	SvREFCNT_dec (req->sv2);	630	SvREFCNT_dec (req->sv2);
		631	SvREFCNT_dec (req->sv3);
		632	SvREFCNT_dec (req->sv4);
566	SvREFCNT_dec (req->callback);	633	SvREFCNT_dec (req->callback);
567		634
568	Safefree (req);	635	free (req);
569	}	636	}
570		637
		638	static void
571	static void req_cancel_subs (aio_req grp)	639	req_cancel_subs (aio_req grp)
572	{	640	{
573	aio_req sub;
574
575	if (grp->type != EIO_GROUP)	641	if (grp->type != EIO_GROUP)
576	return;	642	return;
577		643
578	SvREFCNT_dec (grp->sv2);	644	SvREFCNT_dec (grp->sv2);
579	grp->sv2 = 0;	645	grp->sv2 = 0;
580		646
581	eio_grp_cancel (grp);	647	eio_grp_cancel (grp);
582	}	648	}
583		649
584	static void	650	static void ecb_cold
585	create_respipe (void)	651	create_respipe (void)
586	{	652	{
587	if (s_epipe_renew (&respipe))	653	if (s_epipe_renew (&respipe))
588	croak ("IO::AIO: unable to initialize result pipe");	654	croak ("IO::AIO: unable to initialize result pipe");
589	}	655	}
590		656
591	static void poll_wait (void)	657	static void
		658	poll_wait (void)
592	{	659	{
593	while (eio_nreqs ())	660	while (eio_nreqs ())
594	{	661	{
595	int size;	662	int size;
596		663
…		…
605		672
606	s_epipe_wait (&respipe);	673	s_epipe_wait (&respipe);
607	}	674	}
608	}	675	}
609		676
610	static int poll_cb (void)	677	static int
		678	poll_cb (void)
611	{	679	{
612	for (;;)	680	for (;;)
613	{	681	{
614	int res = eio_poll ();	682	int res = eio_poll ();
615		683
…		…
621		689
622	poll_wait ();	690	poll_wait ();
623	}	691	}
624	}	692	}
625		693
626	static void atfork_child (void)	694	static void ecb_cold
		695	reinit (void)
627	{	696	{
628	create_respipe ();	697	create_respipe ();
		698
		699	if (eio_init (want_poll, done_poll) < 0)
		700	croak ("IO::AIO: unable to initialise eio library");
629	}	701	}
630		702
631	/*****************************************************************************/	703	/*****************************************************************************/
632		704
633	#if !_POSIX_MAPPED_FILES	705	#if !_POSIX_MAPPED_FILES
634	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	706	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
635	# define munmap(addr,length) (errno = ENOSYS, -1)	707	# define munmap(addr,length) EIO_ENOSYS ()
		708	#endif
		709
		710	#if !_POSIX_MEMORY_PROTECTION
		711	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		712	# define PROT_NONE 0
		713	# define PROT_WRITE 0
		714	# define MAP_PRIVATE 0
		715	# define MAP_SHARED 0
		716	# define MAP_FIXED 0
636	#endif	717	#endif
637		718
638	#define MMAP_MAGIC PERL_MAGIC_ext	719	#define MMAP_MAGIC PERL_MAGIC_ext
639		720
640	static int	721	static int ecb_cold
641	mmap_free (pTHX_ SV *sv, MAGIC *mg)	722	mmap_free (pTHX_ SV *sv, MAGIC *mg)
642	{	723	{
643	int old_errno = errno;	724	int old_errno = errno;
644	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	725	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
645	errno = old_errno;	726	errno = old_errno;
…		…
669	{	750	{
670	SvGETMAGIC (cb_sv);	751	SvGETMAGIC (cb_sv);
671	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	752	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
672	}	753	}
673		754
		755	static aio_req ecb_noinline
		756	dreq (SV *callback)
		757	{
		758	SV *cb_cv;
		759	aio_req req;
		760	int req_pri = next_pri;
		761	next_pri = EIO_PRI_DEFAULT;
		762
		763	cb_cv = get_cb (callback);
		764
		765	req = calloc (sizeof (*req), 1);
		766	if (!req)
		767	croak ("out of memory during eio_req allocation");
		768
		769	req->callback = SvREFCNT_inc (cb_cv);
		770	req->pri = req_pri;
		771
		772	return req;
		773	}
		774
674	#define dREQ \	775	#define dREQ \
675	SV *cb_cv; \	776	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		777
689	#define REQ_SEND \	778	#define REQ_SEND \
690	PUTBACK; \	779	PUTBACK; \
691	req_submit (req); \	780	req_submit (req); \
692	SPAGAIN; \	781	SPAGAIN; \
693	\	782	\
694	if (GIMME_V != G_VOID) \	783	if (GIMME_V != G_VOID) \
695	XPUSHs (req_sv (req, aio_req_stash));	784	XPUSHs (req_sv (req, aio_req_stash));
696		785
		786	ecb_inline void
		787	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		788	{
		789	if (expect_false (SvROK (path)))
		790	{
		791	SV *rv = SvRV (path);
		792	SV *wdob;
		793
		794	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		795	{
		796	path = AvARRAY (rv)[1];
		797	wdob = AvARRAY (rv)[0];
		798
		799	if (SvOK (wdob))
		800	{
		801	*wd = SvAIO_WD (wdob);
		802	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		803	}
		804	else
		805	*wd = EIO_INVALID_WD;
		806	}
		807	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		808	{
		809	*wd = (aio_wd)(long)SvIVX (rv);
		810	*wdsv = SvREFCNT_inc_NN (rv);
		811	*ptr = ".";
		812	return; /* path set to "." */
		813	}
		814	else
		815	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		816	}
		817
		818	*pathsv = newSVsv (path);
		819	*ptr = SvPVbyte_nolen (*pathsv);
		820	}
		821
		822	static void ecb_noinline
		823	req_set_path1 (aio_req req, SV *path)
		824	{
		825	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		826	}
		827
		828	static void ecb_noinline
		829	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		830	{
		831	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		832
		833	switch (SvTYPE (rv))
		834	{
		835	case SVt_PVIO:
		836	case SVt_PVLV:
		837	case SVt_PVGV:
		838	req->type = type_fh;
		839	req->sv1 = newSVsv (fh_or_path);
		840	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		841	break;
		842
		843	default:
		844	req->type = type_path;
		845	req_set_path1 (req, fh_or_path);
		846	break;
		847	}
		848	}
		849
		850	XS(boot_IO__AIO) ecb_cold;
		851
697	MODULE = IO::AIO PACKAGE = IO::AIO	852	MODULE = IO::AIO PACKAGE = IO::AIO
698		853
699	PROTOTYPES: ENABLE	854	PROTOTYPES: ENABLE
700		855
701	BOOT:	856	BOOT:
…		…
705	IV iv;	860	IV iv;
706	} *civ, const_iv[] = {	861	} *civ, const_iv[] = {
707	# define const_niv(name, value) { # name, (IV) value },	862	# define const_niv(name, value) { # name, (IV) value },
708	# define const_iv(name) { # name, (IV) name },	863	# define const_iv(name) { # name, (IV) name },
709	# define const_eio(name) { # name, (IV) EIO_ ## name },	864	# define const_eio(name) { # name, (IV) EIO_ ## name },
		865
		866	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		867
		868	const_iv (ENOSYS)
710	const_iv (EXDEV)	869	const_iv (EXDEV)
711	const_iv (ENOSYS)	870	const_iv (EBADR)
		871
712	const_iv (O_RDONLY)	872	const_iv (O_RDONLY)
713	const_iv (O_WRONLY)	873	const_iv (O_WRONLY)
714	const_iv (O_RDWR)	874	const_iv (O_RDWR)
715	const_iv (O_CREAT)	875	const_iv (O_CREAT)
716	const_iv (O_TRUNC)	876	const_iv (O_TRUNC)
717	const_iv (O_EXCL)	877	const_iv (O_EXCL)
718	const_iv (O_APPEND)	878	const_iv (O_APPEND)
719	#ifndef _WIN32	879
		880	const_iv (O_ASYNC)
		881	const_iv (O_DIRECT)
		882	const_iv (O_NOATIME)
		883
		884	const_iv (O_CLOEXEC)
		885	const_iv (O_NOCTTY)
		886	const_iv (O_NOFOLLOW)
		887	const_iv (O_NONBLOCK)
		888	const_iv (O_EXEC)
		889	const_iv (O_SEARCH)
		890	const_iv (O_DIRECTORY)
		891	const_iv (O_DSYNC)
		892	const_iv (O_RSYNC)
		893	const_iv (O_SYNC)
		894	const_iv (O_TTY_INIT)
		895
720	const_iv (S_IFIFO)	896	const_iv (S_IFIFO)
721	#endif	897	const_iv (S_IFCHR)
		898	const_iv (S_IFBLK)
		899	const_iv (S_IFLNK)
		900	const_iv (S_IFREG)
		901	const_iv (S_IFDIR)
		902	const_iv (S_IFWHT)
		903	const_iv (S_IFSOCK)
		904	const_iv (S_IFMT)
		905
722	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	906	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
723	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	907	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
724	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	908	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
725	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	909	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
726	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	910	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
743	const_iv (ST_IMMUTABLE)	927	const_iv (ST_IMMUTABLE)
744	const_iv (ST_NOATIME)	928	const_iv (ST_NOATIME)
745	const_iv (ST_NODIRATIME)	929	const_iv (ST_NODIRATIME)
746	const_iv (ST_RELATIME)	930	const_iv (ST_RELATIME)
747		931
		932	const_iv (PROT_NONE)
748	const_iv (PROT_EXEC)	933	const_iv (PROT_EXEC)
749	const_iv (PROT_NONE)
750	const_iv (PROT_READ)	934	const_iv (PROT_READ)
751	const_iv (PROT_WRITE)	935	const_iv (PROT_WRITE)
752		936
753	/*const_iv (MAP_FIXED)*/	937	/*const_iv (MAP_FIXED)*/
754	const_iv (MAP_PRIVATE)	938	const_iv (MAP_PRIVATE)
…		…
760	const_iv (MAP_LOCKED)	944	const_iv (MAP_LOCKED)
761	const_iv (MAP_NORESERVE)	945	const_iv (MAP_NORESERVE)
762	const_iv (MAP_POPULATE)	946	const_iv (MAP_POPULATE)
763	const_iv (MAP_NONBLOCK)	947	const_iv (MAP_NONBLOCK)
764		948
		949	const_iv (FIEMAP_FLAG_SYNC)
		950	const_iv (FIEMAP_FLAG_XATTR)
		951	const_iv (FIEMAP_FLAGS_COMPAT)
		952	const_iv (FIEMAP_EXTENT_LAST)
		953	const_iv (FIEMAP_EXTENT_UNKNOWN)
		954	const_iv (FIEMAP_EXTENT_DELALLOC)
		955	const_iv (FIEMAP_EXTENT_ENCODED)
		956	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		957	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		958	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		959	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		960	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		961	const_iv (FIEMAP_EXTENT_MERGED)
		962	const_iv (FIEMAP_EXTENT_SHARED)
		963
		964	const_iv (SPLICE_F_MOVE)
		965	const_iv (SPLICE_F_NONBLOCK)
		966	const_iv (SPLICE_F_MORE)
		967	const_iv (SPLICE_F_GIFT)
		968
		969	const_iv (SEEK_DATA)
		970	const_iv (SEEK_HOLE)
		971
		972	/* libeio constants */
		973	const_eio (SEEK_SET)
		974	const_eio (SEEK_CUR)
		975	const_eio (SEEK_END)
		976
765	const_iv (MCL_FUTURE)	977	const_eio (MCL_FUTURE)
766	const_iv (MCL_CURRENT)	978	const_eio (MCL_CURRENT)
767		979
768	const_eio (MS_ASYNC)	980	const_eio (MS_ASYNC)
769	const_eio (MS_INVALIDATE)	981	const_eio (MS_INVALIDATE)
770	const_eio (MS_SYNC)	982	const_eio (MS_SYNC)
771		983
772	const_eio (MT_MODIFY)	984	const_eio (MT_MODIFY)
773		985
774	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	986	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
775	const_eio (SYNC_FILE_RANGE_WRITE)	987	const_eio (SYNC_FILE_RANGE_WRITE)
776	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	988	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		989
		990	const_eio (FALLOC_FL_KEEP_SIZE)
		991	const_eio (FALLOC_FL_PUNCH_HOLE)
777		992
778	const_eio (READDIR_DENTS)	993	const_eio (READDIR_DENTS)
779	const_eio (READDIR_DIRS_FIRST)	994	const_eio (READDIR_DIRS_FIRST)
780	const_eio (READDIR_STAT_ORDER)	995	const_eio (READDIR_STAT_ORDER)
781	const_eio (READDIR_FOUND_UNKNOWN)	996	const_eio (READDIR_FOUND_UNKNOWN)
…		…
792	};	1007	};
793		1008
794	aio_stash = gv_stashpv ("IO::AIO" , 1);	1009	aio_stash = gv_stashpv ("IO::AIO" , 1);
795	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1010	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
796	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1011	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1012	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
797		1013
798	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1014	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
799	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1015	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
800		1016
801	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1017	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
802		1018
803	create_respipe ();	1019	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	}	1020	}
811		1021
812	void	1022	void
		1023	reinit ()
		1024	PROTOTYPE:
		1025
		1026	void
813	max_poll_reqs (int nreqs)	1027	max_poll_reqs (unsigned int nreqs)
814	PROTOTYPE: $	1028	PROTOTYPE: $
815	CODE:	1029	CODE:
816	eio_set_max_poll_reqs (nreqs);	1030	eio_set_max_poll_reqs (nreqs);
817		1031
818	void	1032	void
…		…
820	PROTOTYPE: $	1034	PROTOTYPE: $
821	CODE:	1035	CODE:
822	eio_set_max_poll_time (nseconds);	1036	eio_set_max_poll_time (nseconds);
823		1037
824	void	1038	void
825	min_parallel (int nthreads)	1039	min_parallel (unsigned int nthreads)
826	PROTOTYPE: $	1040	PROTOTYPE: $
827	CODE:	1041	CODE:
828	eio_set_min_parallel (nthreads);	1042	eio_set_min_parallel (nthreads);
829		1043
830	void	1044	void
831	max_parallel (int nthreads)	1045	max_parallel (unsigned int nthreads)
832	PROTOTYPE: $	1046	PROTOTYPE: $
833	CODE:	1047	CODE:
834	eio_set_max_parallel (nthreads);	1048	eio_set_max_parallel (nthreads);
835		1049
836	void	1050	void
837	max_idle (int nthreads)	1051	max_idle (unsigned int nthreads)
838	PROTOTYPE: $	1052	PROTOTYPE: $
839	CODE:	1053	CODE:
840	eio_set_max_idle (nthreads);	1054	eio_set_max_idle (nthreads);
841		1055
842	void	1056	void
		1057	idle_timeout (unsigned int seconds)
		1058	PROTOTYPE: $
		1059	CODE:
		1060	eio_set_idle_timeout (seconds);
		1061
		1062	void
843	max_outstanding (int maxreqs)	1063	max_outstanding (unsigned int maxreqs)
844	PROTOTYPE: $	1064	PROTOTYPE: $
845	CODE:	1065	CODE:
846	max_outstanding = maxreqs;	1066	max_outstanding = maxreqs;
847		1067
848	void	1068	void
		1069	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1070	PPCODE:
		1071	{
		1072	dREQ;
		1073
		1074	req->type = EIO_WD_OPEN;
		1075	req_set_path1 (req, pathname);
		1076
		1077	REQ_SEND;
		1078	}
		1079
		1080	void
849	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1081	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
850	PROTOTYPE: $$$;$
851	PPCODE:	1082	PPCODE:
852	{	1083	{
853	dREQ;	1084	dREQ;
854		1085
855	req->type = EIO_OPEN;	1086	req->type = EIO_OPEN;
856	req->sv1 = newSVsv (pathname);	1087	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858	req->int1 = flags;	1088	req->int1 = flags;
859	req->int2 = mode;	1089	req->int2 = mode;
860		1090
861	REQ_SEND;	1091	REQ_SEND;
862	}	1092	}
863		1093
864	void	1094	void
865	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1095	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
866	PROTOTYPE: $;$
867	ALIAS:	1096	ALIAS:
868	aio_fsync = EIO_FSYNC	1097	aio_fsync = EIO_FSYNC
869	aio_fdatasync = EIO_FDATASYNC	1098	aio_fdatasync = EIO_FDATASYNC
		1099	aio_syncfs = EIO_SYNCFS
870	PPCODE:	1100	PPCODE:
871	{	1101	{
872	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
873	dREQ;	1103	dREQ;
874		1104
875	req->type = ix;	1105	req->type = ix;
876	req->sv1 = newSVsv (fh);	1106	req->sv1 = newSVsv (fh);
877	req->int1 = fd;	1107	req->int1 = fd;
878		1108
879	REQ_SEND (req);	1109	REQ_SEND;
880	}	1110	}
881		1111
882	void	1112	void
883	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1113	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$$;$
885	PPCODE:	1114	PPCODE:
886	{	1115	{
887	int fd = s_fileno_croak (fh, 0);	1116	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1117	dREQ;
889		1118
…		…
892	req->int1 = fd;	1121	req->int1 = fd;
893	req->offs = offset;	1122	req->offs = offset;
894	req->size = nbytes;	1123	req->size = nbytes;
895	req->int2 = flags;	1124	req->int2 = flags;
896		1125
897	REQ_SEND (req);	1126	REQ_SEND;
898	}	1127	}
899		1128
900	void	1129	void
901	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1130	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
902	PROTOTYPE: $;$
903	PPCODE:	1131	PPCODE:
904	{	1132	{
905	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
906	int fd = s_fileno_croak (fh, 0);	1133	int fd = s_fileno_croak (fh, 0);
907	dREQ;	1134	dREQ;
908		1135
909	if (close_pipe < 0)	1136	req->type = EIO_FALLOCATE;
		1137	req->sv1 = newSVsv (fh);
		1138	req->int1 = fd;
		1139	req->int2 = mode;
		1140	req->offs = offset;
		1141	req->size = len;
		1142
		1143	REQ_SEND;
		1144	}
		1145
		1146	void
		1147	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1148	PPCODE:
		1149	{
		1150	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1151	int fd = s_fileno_croak (fh, 0);
		1152	dREQ;
		1153
		1154	if (expect_false (close_fd < 0))
910	{	1155	{
911	int pipefd [2];	1156	int pipefd [2];
912		1157
		1158	if (
		1159	#ifdef _WIN32
		1160	_pipe (pipefd, 1, _O_BINARY) < 0
		1161	#else
913	if (pipe (pipefd) < 0	1162	pipe (pipefd) < 0
914	|| close (pipefd [1]) < 0
915	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1163	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1164	#endif
		1165	|| close (pipefd [1]) < 0
		1166	)
916	abort (); /*D*/	1167	abort (); /*D*/
917		1168
918	close_pipe = pipefd [0];	1169	close_fd = pipefd [0];
919	}	1170	}
920		1171
921	req->type = EIO_DUP2;	1172	req->type = EIO_DUP2;
922	req->int1 = close_pipe;	1173	req->int1 = close_fd;
923	req->sv2 = newSVsv (fh);	1174	req->sv2 = newSVsv (fh);
924	req->int2 = fd;	1175	req->int2 = fd;
925		1176
926	REQ_SEND (req);	1177	REQ_SEND;
		1178	}
		1179
		1180	void
		1181	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1182	PPCODE:
		1183	{
		1184	int fd = s_fileno_croak (fh, 0);
		1185	dREQ;
		1186
		1187	req->type = EIO_SEEK;
		1188	req->sv1 = newSVsv (fh);
		1189	req->int1 = fd;
		1190	req->offs = SvVAL64 (offset);
		1191	req->int2 = whence;
		1192
		1193	REQ_SEND;
927	}	1194	}
928		1195
929	void	1196	void
930	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
931	ALIAS:	1198	ALIAS:
932	aio_read = EIO_READ	1199	aio_read = EIO_READ
933	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
934	PROTOTYPE: $$$$$;$
935	PPCODE:	1201	PPCODE:
936	{	1202	{
937	STRLEN svlen;	1203	STRLEN svlen;
938	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
939	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
…		…
953	}	1219	}
954	else	1220	else
955	{	1221	{
956	/* read: check type and grow scalar as necessary */	1222	/* read: check type and grow scalar as necessary */
957	SvUPGRADE (data, SVt_PV);	1223	SvUPGRADE (data, SVt_PV);
		1224	if (SvLEN (data) >= SvCUR (data))
958	svptr = SvGROW (data, len + dataoffset + 1);	1225	svptr = SvGROW (data, len + dataoffset + 1);
		1226	else if (SvCUR (data) < len + dataoffset)
		1227	croak ("length + dataoffset outside of scalar, and cannot grow");
959	}	1228	}
960		1229
961	{	1230	{
962	dREQ;	1231	dREQ;
963		1232
…		…
979	REQ_SEND;	1248	REQ_SEND;
980	}	1249	}
981	}	1250	}
982		1251
983	void	1252	void
984	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1253	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
985	PROTOTYPE: $$;$	1254	ALIAS:
		1255	aio_readlink = EIO_READLINK
		1256	aio_realpath = EIO_REALPATH
986	PPCODE:	1257	PPCODE:
987	{	1258	{
988	SV *data;
989	dREQ;	1259	dREQ;
990		1260
991	req->type = EIO_READLINK;	1261	req->type = ix;
992	req->sv1 = newSVsv (path);	1262	req_set_path1 (req, pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994		1263
995	REQ_SEND;	1264	REQ_SEND;
996	}	1265	}
997		1266
998	void	1267	void
999	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1268	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1000	PROTOTYPE: $$$$;$
1001	PPCODE:	1269	PPCODE:
1002	{	1270	{
1003	int ifd = s_fileno_croak (in_fh , 0);	1271	int ifd = s_fileno_croak (in_fh , 0);
1004	int ofd = s_fileno_croak (out_fh, 1);	1272	int ofd = s_fileno_croak (out_fh, 1);
1005	dREQ;	1273	dREQ;
…		…
1015	REQ_SEND;	1283	REQ_SEND;
1016	}	1284	}
1017		1285
1018	void	1286	void
1019	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1287	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1020	PROTOTYPE: $$$;$
1021	PPCODE:	1288	PPCODE:
1022	{	1289	{
1023	int fd = s_fileno_croak (fh, 0);	1290	int fd = s_fileno_croak (fh, 0);
1024	dREQ;	1291	dREQ;
1025		1292
…		…
1040	aio_statvfs = EIO_STATVFS	1307	aio_statvfs = EIO_STATVFS
1041	PPCODE:	1308	PPCODE:
1042	{	1309	{
1043	dREQ;	1310	dREQ;
1044		1311
1045	req->sv1 = newSVsv (fh_or_path);	1312	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		1313
1058	REQ_SEND;	1314	REQ_SEND;
1059	}	1315	}
		1316
		1317	UV
		1318	major (UV dev)
		1319	ALIAS:
		1320	minor = 1
		1321	CODE:
		1322	RETVAL = ix ? major (dev) : minor (dev);
		1323	OUTPUT:
		1324	RETVAL
		1325
		1326	UV
		1327	makedev (UV maj, UV min)
		1328	CODE:
		1329	RETVAL = makedev (maj, min);
		1330	OUTPUT:
		1331	RETVAL
1060		1332
1061	void	1333	void
1062	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1334	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1063	PPCODE:	1335	PPCODE:
1064	{	1336	{
1065	dREQ;	1337	dREQ;
1066		1338
1067	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1339	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1068	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1340	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1069	req->sv1 = newSVsv (fh_or_path);	1341	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		1342
1082	REQ_SEND;	1343	REQ_SEND;
1083	}	1344	}
1084		1345
1085	void	1346	void
1086	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1347	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1087	PPCODE:	1348	PPCODE:
1088	{	1349	{
1089	dREQ;	1350	dREQ;
1090		1351
1091	req->sv1 = newSVsv (fh_or_path);
1092	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1093		1353	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		1354
1105	REQ_SEND;	1355	REQ_SEND;
1106	}	1356	}
1107		1357
1108	void	1358	void
1109	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1359	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1110	ALIAS:
1111	aio_chmod = EIO_CHMOD
1112	aio_mkdir = EIO_MKDIR
1113	PPCODE:	1360	PPCODE:
1114	{	1361	{
1115	dREQ;	1362	dREQ;
1116		1363
1117	req->int2 = mode;	1364	req->int2 = mode;
1118	req->sv1 = newSVsv (fh_or_path);	1365	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		1366
1131	REQ_SEND;	1367	REQ_SEND;
1132	}	1368	}
1133		1369
1134	void	1370	void
…		…
1137	{	1373	{
1138	dREQ;	1374	dREQ;
1139		1375
1140	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1376	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1141	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1377	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1142	req->sv1 = newSVsv (fh_or_path);	1378	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		1379
1155	REQ_SEND;	1380	REQ_SEND;
1156	}	1381	}
1157		1382
1158	void	1383	void
…		…
1160	PPCODE:	1385	PPCODE:
1161	{	1386	{
1162	dREQ;	1387	dREQ;
1163		1388
1164	req->type = EIO_READDIR;	1389	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;	1390	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1168		1391
1169	if (flags & EIO_READDIR_DENTS)	1392	if (flags & EIO_READDIR_DENTS)
1170	req->int1 |= EIO_READDIR_CUSTOM2;	1393	req->int1 |= EIO_READDIR_CUSTOM2;
1171		1394
		1395	req_set_path1 (req, pathname);
		1396
1172	REQ_SEND;	1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	dREQ;
		1405
		1406	req->type = EIO_MKDIR;
		1407	req->int2 = mode;
		1408	req_set_path1 (req, pathname);
		1409
		1410	REQ_SEND;
1173	}	1411	}
1174		1412
1175	void	1413	void
1176	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1414	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1177	ALIAS:	1415	ALIAS:
…		…
1181	PPCODE:	1419	PPCODE:
1182	{	1420	{
1183	dREQ;	1421	dREQ;
1184		1422
1185	req->type = ix;	1423	req->type = ix;
1186	req->sv1 = newSVsv (pathname);	1424	req_set_path1 (req, pathname);
1187	req->ptr1 = SvPVbyte_nolen (req->sv1);
1188		1425
1189	REQ_SEND;	1426	REQ_SEND;
1190	}	1427	}
1191		1428
1192	void	1429	void
…		…
1195	aio_link = EIO_LINK	1432	aio_link = EIO_LINK
1196	aio_symlink = EIO_SYMLINK	1433	aio_symlink = EIO_SYMLINK
1197	aio_rename = EIO_RENAME	1434	aio_rename = EIO_RENAME
1198	PPCODE:	1435	PPCODE:
1199	{	1436	{
		1437	eio_wd wd2 = 0;
1200	dREQ;	1438	dREQ;
1201		1439
1202	req->type = ix;	1440	req->type = ix;
1203	req->sv1 = newSVsv (oldpath);	1441	req_set_path1 (req, oldpath);
1204	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1205	req->sv2 = newSVsv (newpath);	1443	req->int3 = (long)wd2;
1206	req->ptr2 = SvPVbyte_nolen (req->sv2);
1207		1444
1208	REQ_SEND;	1445	REQ_SEND;
1209	}	1446	}
1210		1447
1211	void	1448	void
…		…
1213	PPCODE:	1450	PPCODE:
1214	{	1451	{
1215	dREQ;	1452	dREQ;
1216		1453
1217	req->type = EIO_MKNOD;	1454	req->type = EIO_MKNOD;
1218	req->sv1 = newSVsv (pathname);
1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
1220	req->int2 = (mode_t)mode;	1455	req->int2 = (mode_t)mode;
1221	req->offs = dev;	1456	req->offs = dev;
		1457	req_set_path1 (req, pathname);
1222		1458
1223	REQ_SEND;	1459	REQ_SEND;
1224	}	1460	}
1225		1461
1226	void	1462	void
1227	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1463	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1228	ALIAS:	1464	ALIAS:
1229	aio_mtouch = EIO_MTOUCH	1465	aio_mtouch = EIO_MTOUCH
1230	aio_msync = EIO_MSYNC	1466	aio_msync = EIO_MSYNC
1231	PROTOTYPE: $$$$;$
1232	PPCODE:	1467	PPCODE:
1233	{	1468	{
1234	STRLEN svlen;	1469	STRLEN svlen;
		1470	char *svptr = SvPVbyte (data, svlen);
1235	UV len = SvUV (length);	1471	UV len = SvUV (length);
1236	char *svptr = SvPVbyte (data, svlen);
1237		1472
1238	if (offset < 0)	1473	if (offset < 0)
1239	offset += svlen;	1474	offset += svlen;
1240		1475
1241	if (offset < 0 || offset > svlen)	1476	if (offset < 0 || offset > svlen)
…		…
1246		1481
1247	{	1482	{
1248	dREQ;	1483	dREQ;
1249		1484
1250	req->type = ix;	1485	req->type = ix;
1251	req->size = len;
1252	req->sv2 = SvREFCNT_inc (data);	1486	req->sv2 = SvREFCNT_inc (data);
1253	req->ptr2 = (char *)svptr + offset;	1487	req->ptr2 = (char *)svptr + offset;
		1488	req->size = len;
1254	req->int1 = flags;	1489	req->int1 = flags;
1255		1490
1256	REQ_SEND;	1491	REQ_SEND;
1257	}	1492	}
1258	}	1493	}
1259		1494
1260	void	1495	void
		1496	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1497	PPCODE:
		1498	{
		1499	STRLEN svlen;
		1500	char *svptr = SvPVbyte (data, svlen);
		1501	UV len = SvUV (length);
		1502
		1503	if (offset < 0)
		1504	offset += svlen;
		1505
		1506	if (offset < 0 || offset > svlen)
		1507	croak ("offset outside of scalar");
		1508
		1509	if (!SvOK (length) || len + offset > svlen)
		1510	len = svlen - offset;
		1511
		1512	{
		1513	dREQ;
		1514
		1515	req->type = EIO_MLOCK;
		1516	req->sv2 = SvREFCNT_inc (data);
		1517	req->ptr2 = (char *)svptr + offset;
		1518	req->size = len;
		1519
		1520	REQ_SEND;
		1521	}
		1522	}
		1523
		1524	void
		1525	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1526	PPCODE:
		1527	{
		1528	dREQ;
		1529
		1530	req->type = EIO_MLOCKALL;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535
		1536	void
		1537	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	dREQ;
		1542
		1543	req->type = EIO_CUSTOM;
		1544	req->sv1 = newSVsv (fh);
		1545	req->int1 = fd;
		1546
		1547	req->feed = fiemap;
		1548	#if HAVE_FIEMAP
		1549	/* keep our fingers crossed that the next two types are 64 bit */
		1550	req->offs = start;
		1551	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1552	req->int2 = flags;
		1553	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1554	#endif
		1555
		1556	REQ_SEND;
		1557	}
		1558
		1559	void
1261	aio_busy (double delay, SV *callback=&PL_sv_undef)	1560	aio_busy (double delay, SV *callback=&PL_sv_undef)
1262	PPCODE:	1561	PPCODE:
1263	{	1562	{
1264	dREQ;	1563	dREQ;
1265		1564
…		…
1269	REQ_SEND;	1568	REQ_SEND;
1270	}	1569	}
1271		1570
1272	void	1571	void
1273	aio_group (SV *callback=&PL_sv_undef)	1572	aio_group (SV *callback=&PL_sv_undef)
1274	PROTOTYPE: ;$
1275	PPCODE:	1573	PPCODE:
1276	{	1574	{
1277	dREQ;	1575	dREQ;
1278		1576
1279	req->type = EIO_GROUP;	1577	req->type = EIO_GROUP;
…		…
1296	REQ_SEND;	1594	REQ_SEND;
1297	}	1595	}
1298		1596
1299	int	1597	int
1300	aioreq_pri (int pri = 0)	1598	aioreq_pri (int pri = 0)
1301	PROTOTYPE: ;$
1302	CODE:	1599	CODE:
1303	RETVAL = next_pri;	1600	RETVAL = next_pri;
1304	if (items > 0)	1601	if (items > 0)
1305	{	1602	{
1306	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1603	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1318	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1615	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1319	next_pri = nice;	1616	next_pri = nice;
1320		1617
1321	void	1618	void
1322	flush ()	1619	flush ()
1323	PROTOTYPE:
1324	CODE:	1620	CODE:
1325	while (eio_nreqs ())	1621	while (eio_nreqs ())
1326	{	1622	{
1327	poll_wait ();	1623	poll_wait ();
1328	poll_cb ();	1624	poll_cb ();
1329	}	1625	}
1330		1626
1331	int	1627	int
1332	poll()	1628	poll ()
1333	PROTOTYPE:
1334	CODE:	1629	CODE:
1335	poll_wait ();	1630	poll_wait ();
1336	RETVAL = poll_cb ();	1631	RETVAL = poll_cb ();
1337	OUTPUT:	1632	OUTPUT:
1338	RETVAL	1633	RETVAL
1339		1634
1340	int	1635	int
1341	poll_fileno()	1636	poll_fileno ()
1342	PROTOTYPE:
1343	CODE:	1637	CODE:
1344	RETVAL = s_epipe_fd (&respipe);	1638	RETVAL = s_epipe_fd (&respipe);
1345	OUTPUT:	1639	OUTPUT:
1346	RETVAL	1640	RETVAL
1347		1641
1348	int	1642	int
1349	poll_cb(...)	1643	poll_cb (...)
1350	PROTOTYPE:	1644	PROTOTYPE:
1351	CODE:	1645	CODE:
1352	RETVAL = poll_cb ();	1646	RETVAL = poll_cb ();
1353	OUTPUT:	1647	OUTPUT:
1354	RETVAL	1648	RETVAL
1355		1649
1356	void	1650	void
1357	poll_wait()	1651	poll_wait ()
1358	PROTOTYPE:
1359	CODE:	1652	CODE:
1360	poll_wait ();	1653	poll_wait ();
1361		1654
1362	int	1655	int
1363	nreqs()	1656	nreqs ()
1364	PROTOTYPE:
1365	CODE:	1657	CODE:
1366	RETVAL = eio_nreqs ();	1658	RETVAL = eio_nreqs ();
1367	OUTPUT:	1659	OUTPUT:
1368	RETVAL	1660	RETVAL
1369		1661
1370	int	1662	int
1371	nready()	1663	nready ()
1372	PROTOTYPE:
1373	CODE:	1664	CODE:
1374	RETVAL = eio_nready ();	1665	RETVAL = eio_nready ();
1375	OUTPUT:	1666	OUTPUT:
1376	RETVAL	1667	RETVAL
1377		1668
1378	int	1669	int
1379	npending()	1670	npending ()
1380	PROTOTYPE:
1381	CODE:	1671	CODE:
1382	RETVAL = eio_npending ();	1672	RETVAL = eio_npending ();
1383	OUTPUT:	1673	OUTPUT:
1384	RETVAL	1674	RETVAL
1385		1675
1386	int	1676	int
1387	nthreads()	1677	nthreads ()
1388	PROTOTYPE:
1389	CODE:	1678	CODE:
1390	RETVAL = eio_nthreads ();	1679	RETVAL = eio_nthreads ();
1391	OUTPUT:	1680	OUTPUT:
1392	RETVAL	1681	RETVAL
1393		1682
1394	int	1683	int
1395	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1684	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1396	PROTOTYPE: $$$$
1397	CODE:	1685	CODE:
1398	RETVAL = posix_fadvise (fh, offset, length, advice);	1686	RETVAL = posix_fadvise (fh, offset, length, advice);
1399	OUTPUT:	1687	OUTPUT:
1400	RETVAL	1688	RETVAL
1401		1689
1402	ssize_t	1690	IV
1403	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1691	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1404	PROTOTYPE: $$$$
1405	CODE:	1692	CODE:
1406	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1693	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1407	OUTPUT:	1694	OUTPUT:
1408	RETVAL	1695	RETVAL
1409		1696
1410	void	1697	void
1411	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1698	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1412	PROTOTYPE: $$$$$;$
1413	PPCODE:	1699	PPCODE:
1414	sv_unmagic (scalar, MMAP_MAGIC);	1700	sv_unmagic (scalar, MMAP_MAGIC);
1415	{	1701	{
1416	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1702	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1417	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1703	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1440	XSRETURN_YES;	1726	XSRETURN_YES;
1441	}	1727	}
1442		1728
1443	void	1729	void
1444	munmap (SV *scalar)	1730	munmap (SV *scalar)
1445	PROTOTYPE: $
1446	CODE:	1731	CODE:
1447	sv_unmagic (scalar, MMAP_MAGIC);	1732	sv_unmagic (scalar, MMAP_MAGIC);
1448		1733
1449	int	1734	int
1450	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1735	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1451	PROTOTYPE: $$$$	1736	ALIAS:
		1737	mprotect = 1
1452	CODE:	1738	CODE:
1453	{	1739	{
1454	char *addr = SvPV_nolen (scalar) + offset;	1740	STRLEN svlen;
		1741	void *addr = SvPVbyte (scalar, svlen);
		1742	size_t len = SvUV (length);
1455		1743
1456	if (!SvOK (ST (2)))	1744	if (offset < 0)
		1745	offset += svlen;
		1746
		1747	if (offset < 0 || offset > svlen)
		1748	croak ("offset outside of scalar");
		1749
		1750	if (!SvOK (length) || len + offset > svlen)
1457	length = SvCUR (scalar) - offset;	1751	len = svlen - offset;
1458		1752
1459	if (addr >= SvEND (scalar) || length <= 0)	1753	addr = (void *)(((intptr_t)addr) + offset);
1460	XSRETURN_EMPTY;	1754	eio_page_align (&addr, &len);
1461		1755
		1756	switch (ix)
		1757	{
1462	RETVAL = posix_madvise (addr, length, advice);	1758	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1759	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1760	}
1463	}	1761	}
1464	OUTPUT:	1762	OUTPUT:
1465	RETVAL	1763	RETVAL
1466		1764
1467	int	1765	int
1468	mlockall (int flags)	1766	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1469	PROTOTYPE: $
1470	CODE:	1767	CODE:
		1768	{
		1769	STRLEN svlen;
		1770	void *addr = SvPVbyte (scalar, svlen);
		1771	size_t len = SvUV (length);
		1772
		1773	if (offset < 0)
		1774	offset += svlen;
		1775
		1776	if (offset < 0 || offset > svlen)
		1777	croak ("offset outside of scalar");
		1778
		1779	if (!SvOK (length) || len + offset > svlen)
		1780	len = svlen - offset;
		1781
		1782	addr = (void *)(((intptr_t)addr) + offset);
		1783	eio_page_align (&addr, &len);
1471	#if _POSIX_MEMLOCK	1784	#if _POSIX_MEMLOCK_RANGE
1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1785	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	1786	#else
1478	RETVAL = -1;	1787	RETVAL = EIO_ENOSYS ();
1479	errno = ENOSYS;
1480	#endif	1788	#endif
		1789	}
1481	OUTPUT:	1790	OUTPUT:
1482	RETVAL	1791	RETVAL
1483		1792
1484	int	1793	int
1485	munlockall ()	1794	munlockall ()
1486	PROTOTYPE:
1487	CODE:	1795	CODE:
1488	#if _POSIX_MEMLOCK	1796	#if _POSIX_MEMLOCK
1489	munlockall ();	1797	munlockall ();
1490	#else	1798	#else
1491	RETVAL = -1;	1799	RETVAL = EIO_ENOSYS ();
1492	errno = ENOSYS;
1493	#endif	1800	#endif
1494	OUTPUT:	1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1806	CODE:
		1807	{
		1808	#if HAVE_LINUX_SPLICE
		1809	loff_t off_in_, off_out_;
		1810	RETVAL = splice (
		1811	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1812	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1813	length, flags
		1814	);
		1815	#else
		1816	RETVAL = EIO_ENOSYS ();
		1817	#endif
		1818	}
		1819	OUTPUT:
		1820	RETVAL
		1821
		1822	int
		1823	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1824	CODE:
		1825	#if HAVE_LINUX_SPLICE
		1826	RETVAL = tee (rfh, wfh, length, flags);
		1827	#else
		1828	RETVAL = EIO_ENOSYS ();
		1829	#endif
		1830	OUTPUT:
1495	RETVAL	1831	RETVAL
1496		1832
1497	void _on_next_submit (SV *cb)	1833	void _on_next_submit (SV *cb)
1498	CODE:	1834	CODE:
1499	SvREFCNT_dec (on_next_submit);	1835	SvREFCNT_dec (on_next_submit);
1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1836	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1501		1837
1502	PROTOTYPES: DISABLE	1838	PROTOTYPES: DISABLE
1503		1839
		1840	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1841
		1842	BOOT:
		1843	{
		1844	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1845	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1846	}
		1847
		1848	void
		1849	DESTROY (SV *self)
		1850	CODE:
		1851	{
		1852	aio_wd wd = SvAIO_WD (self);
		1853	#if HAVE_AT
		1854	{
		1855	SV *callback = &PL_sv_undef;
		1856	dREQ; /* clobbers next_pri :/ */
		1857	next_pri = req->pri; /* restore next_pri */
		1858	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1859	req->type = EIO_WD_CLOSE;
		1860	req->wd = wd;
		1861	REQ_SEND;
		1862	}
		1863	#else
		1864	eio_wd_close_sync (wd);
		1865	#endif
		1866	}
		1867
1504	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1868	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1505		1869
1506	void	1870	void
1507	cancel (aio_req_ornot req)	1871	cancel (aio_req_ornot req)
1508	CODE:	1872	CODE:

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