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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.185 by root, Thu Jul 7 22:36:18 2011 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	19	#include <limits.h>
18	#include <fcntl.h>	20	#include <fcntl.h>
19	#include <sched.h>	21	#include <sched.h>
20		22
		23	#if HAVE_SYS_SYSMACROS_H
		24	# include <sys/sysmacros.h>
		25	#endif
		26
21	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	27	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	28	# include <sys/mman.h>
23	#endif	29	#endif
24		30
		31	/* the incompetent fool that created musl keeps __linux__, refuses
		32	* to implement any linux standard apis, and also has no way to test
		33	* for his broken iplementation. don't complain to me if this fails
		34	* for you.
		35	*/
		36	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		37	# include <linux/fs.h>
		38	# ifdef FS_IOC_FIEMAP
		39	# include <linux/types.h>
		40	# include <linux/fiemap.h>
		41	# define HAVE_FIEMAP 1
		42	# endif
		43	#endif
		44
25	/* perl namespace pollution */	45	/* perl namespace pollution */
26	#undef VERSION	46	#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		47
77	/* perl stupidly overrides readdir and maybe others */	48	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	49	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	50	#undef readdir
80	#undef opendir	51	#undef opendir
81	#undef closedir	52	#undef closedir
82		53
		54	#ifdef _WIN32
		55
		56	// perl overrides all those nice libc functions
		57
		58	#undef malloc
		59	#undef free
		60	#undef open
		61	#undef read
		62	#undef write
		63	#undef send
		64	#undef recv
		65	#undef stat
		66	#undef lstat
		67	#undef fstat
		68	#undef truncate
		69	#undef ftruncate
		70	#undef open
		71	#undef link
		72	#undef close
		73	#undef unlink
		74	#undef mkdir
		75	#undef rmdir
		76	#undef rename
		77	#undef lseek
		78	#undef opendir
		79	#undef readdir
		80	#undef closedir
		81	#undef chmod
		82	#undef fchmod
		83	#undef dup
		84	#undef dup2
		85	#undef abort
		86	#undef pipe
		87
		88	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	89	#define EIO_STRUCT_STATI64
84		90
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	91	#else
91	# define VAL64 NV	92
92	# define SvVAL64 SvNV	93	#include <sys/time.h>
93	# define newSVval64 newSVnv	94	#include <sys/select.h>
		95	#include <unistd.h>
		96	#include <utime.h>
		97	#include <signal.h>
		98
		99	#define EIO_STRUCT_STAT Stat_t
		100
94	#endif	101	#endif
95		102
96	/*****************************************************************************/	103	/*****************************************************************************/
97		104
98	#if __GNUC__ >= 3	105	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	111	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	112	#define expect_true(expr) expect ((expr) != 0, 1)
106		113
107	/*****************************************************************************/	114	/*****************************************************************************/
108		115
		116	#include "config.h"
		117
		118	#if HAVE_ST_XTIMENSEC
		119	# define ATIMENSEC PL_statcache.st_atimensec
		120	# define MTIMENSEC PL_statcache.st_mtimensec
		121	# define CTIMENSEC PL_statcache.st_ctimensec
		122	#elif HAVE_ST_XTIMESPEC
		123	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		124	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		125	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		126	#else
		127	# define ATIMENSEC 0
		128	# define MTIMENSEC 0
		129	# define CTIMENSEC 0
		130	#endif
		131
		132	#include "schmorp.h"
		133
		134	#if HAVE_EVENTFD
		135	# include <sys/eventfd.h>
		136	#endif
		137
		138	#if HAVE_TIMERFD
		139	# include <sys/timerfd.h>
		140	#endif
		141
		142	#if HAVE_RLIMITS
		143	#include <sys/time.h>
		144	#include <sys/resource.h>
		145	#endif
		146
109	typedef SV SV8; /* byte-sv, used for argument-checking */	147	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	148	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	149	typedef int aio_wfd; /* write file descriptor */
112		150
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	151	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		152
115	#define EIO_REQ_MEMBERS \	153	#define EIO_REQ_MEMBERS \
116	SV *callback; \	154	SV *callback; \
117	SV *sv1, *sv2; \	155	SV *sv1, *sv2; \
		156	SV *sv3, *sv4; \
118	STRLEN stroffset; \	157	STRLEN stroffset; \
119	SV *self;	158	SV *self;
120		159
121	#define EIO_NO_WRAPPERS 1	160	#define EIO_NO_WRAPPERS 1
122		161
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	162	#include "libeio/eio.h"
125		163
126	/* Linux/others */	164	static int req_invoke (eio_req *req);
127	#ifndef O_ASYNC	165	#define EIO_FINISH(req) req_invoke (req)
128	# define O_ASYNC 0	166	static void req_destroy (eio_req *grp);
129	#endif	167	#define EIO_DESTROY(req) req_destroy (req)
130	#ifndef O_DIRECT
131	# define O_DIRECT 0
132	#endif
133	#ifndef O_NOATIME
134	# define O_NOATIME 0
135	#endif
136		168
137	/* POSIX */	169	#include "libeio/eio.c"
138	#ifndef O_CLOEXEC
139	# define O_CLOEXEC 0
140	#endif
141	#ifndef O_NOFOLLOW
142	# define O_NOFOLLOW 0
143	#endif
144	#ifndef O_NOCTTY
145	# define O_NOCTTY 0
146	#endif
147	#ifndef O_NONBLOCK
148	# define O_NONBLOCK 0
149	#endif
150	#ifndef O_EXEC
151	# define O_EXEC 0
152	#endif
153	#ifndef O_SEARCH
154	# define O_SEARCH 0
155	#endif
156	#ifndef O_DIRECTORY
157	# define O_DIRECTORY 0
158	#endif
159	#ifndef O_DSYNC
160	# define O_DSYNC 0
161	#endif
162	#ifndef O_RSYNC
163	# define O_RSYNC 0
164	#endif
165	#ifndef O_SYNC
166	# define O_SYNC 0
167	#endif
168	#ifndef O_TTY_INIT
169	# define O_TTY_INIT 0
170	#endif
171
172	#ifndef POSIX_FADV_NORMAL
173	# define POSIX_FADV_NORMAL 0
174	#endif
175	#ifndef POSIX_FADV_SEQUENTIAL
176	# define POSIX_FADV_SEQUENTIAL 0
177	#endif
178	#ifndef POSIX_FADV_RANDOM
179	# define POSIX_FADV_RANDOM 0
180	#endif
181	#ifndef POSIX_FADV_NOREUSE
182	# define POSIX_FADV_NOREUSE 0
183	#endif
184	#ifndef POSIX_FADV_WILLNEED
185	# define POSIX_FADV_WILLNEED 0
186	#endif
187	#ifndef POSIX_FADV_DONTNEED
188	# define POSIX_FADV_DONTNEED 0
189	#endif
190		170
191	#if !HAVE_POSIX_FADVISE	171	#if !HAVE_POSIX_FADVISE
192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	172	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193	#endif	173	#endif
194		174
195	#ifndef POSIX_MADV_NORMAL
196	# define POSIX_MADV_NORMAL 0
197	#endif
198	#ifndef POSIX_MADV_SEQUENTIAL
199	# define POSIX_MADV_SEQUENTIAL 0
200	#endif
201	#ifndef POSIX_MADV_RANDOM
202	# define POSIX_MADV_RANDOM 0
203	#endif
204	#ifndef POSIX_MADV_WILLNEED
205	# define POSIX_MADV_WILLNEED 0
206	#endif
207	#ifndef POSIX_MADV_DONTNEED
208	# define POSIX_MADV_DONTNEED 0
209	#endif
210
211	#if !HAVE_POSIX_MADVISE	175	#if !HAVE_POSIX_MADVISE
212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	176	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213	#endif
214
215	#ifndef PROT_NONE
216	# define PROT_NONE 0
217	#endif
218	#ifndef PROT_READ
219	# define PROT_READ 0
220	#endif
221	#ifndef PROT_WRITE
222	# define PROT_READ 0
223	#endif
224	#ifndef PROT_EXEC
225	# define PROT_EXEC 0
226	#endif
227
228	#ifndef ST_NODEV
229	# define ST_NODEV 0
230	#endif
231	#ifndef ST_NOEXEC
232	# define ST_NOEXEC 0
233	#endif
234	#ifndef ST_SYNCHRONOUS
235	# define ST_SYNCHRONOUS 0
236	#endif
237	#ifndef ST_MANDLOCK
238	# define ST_MANDLOCK 0
239	#endif
240	#ifndef ST_WRITE
241	# define ST_WRITE 0
242	#endif
243	#ifndef ST_APPEND
244	# define ST_APPEND 0
245	#endif
246	#ifndef ST_IMMUTABLE
247	# define ST_IMMUTABLE 0
248	#endif
249	#ifndef ST_NOATIME
250	# define ST_NOATIME 0
251	#endif
252	#ifndef ST_NODIRATIME
253	# define ST_NODIRATIME 0
254	#endif
255	#ifndef ST_RELATIME
256	# define ST_RELATIME 0
257	#endif
258
259	#ifndef S_IFIFO
260	# define S_IFIFO 0
261	#endif
262	#ifndef S_IFCHR
263	# define S_IFCHR 0
264	#endif
265	#ifndef S_IFBLK
266	# define S_IFBLK 0
267	#endif
268	#ifndef S_IFLNK
269	# define S_IFLNK 0
270	#endif
271	#ifndef S_IFREG
272	# define S_IFREG 0
273	#endif
274	#ifndef S_IFDIR
275	# define S_IFDIR 0
276	#endif
277	#ifndef S_IFWHT
278	# define S_IFWHT 0
279	#endif
280	#ifndef S_IFSOCK
281	# define S_IFSOCK 0
282	#endif	177	#endif
283		178
284	#ifndef MAP_ANONYMOUS	179	#ifndef MAP_ANONYMOUS
285	# ifdef MAP_ANON	180	# ifdef MAP_ANON
286	# define MAP_ANONYMOUS MAP_ANON	181	# define MAP_ANONYMOUS MAP_ANON
287	# else	182	# else
288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	183	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289	# endif	184	# endif
290	#endif	185	#endif
291	#ifndef MAP_HUGETLB
292	# define MAP_HUGETLB 0
293	#endif
294	#ifndef MAP_LOCKED
295	# define MAP_LOCKED 0
296	#endif
297	#ifndef MAP_NORESERVE
298	# define MAP_NORESERVE 0
299	#endif
300	#ifndef MAP_POPULATE
301	# define MAP_POPULATE 0
302	#endif
303	#ifndef MAP_NONBLOCK
304	# define MAP_NONBLOCK 0
305	#endif
306		186
307	#ifndef makedev	187	#ifndef makedev
308	# define makedev(maj,min) (((maj) << 8) | (min))	188	# define makedev(maj,min) (((maj) << 8) | (min))
309	#endif	189	#endif
310	#ifndef major	190	#ifndef major
…		…
312	#endif	192	#endif
313	#ifndef minor	193	#ifndef minor
314	# define minor(dev) ((dev) & 0xff)	194	# define minor(dev) ((dev) & 0xff)
315	#endif	195	#endif
316		196
317	#ifndef PAGESIZE	197	#if PAGESIZE <= 0
318	# define PAGESIZE sysconf (_SC_PAGESIZE)	198	# define PAGESIZE sysconf (_SC_PAGESIZE)
319	#endif	199	#endif
320		200
321	static int req_invoke (eio_req *req);	201	/*****************************************************************************/
322	#define EIO_FINISH(req) req_invoke (req)	202
323	static void req_destroy (eio_req *grp);	203	#if !_POSIX_MAPPED_FILES
324	#define EIO_DESTROY(req) req_destroy (req)	204	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		205	# define munmap(addr,length) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !_POSIX_MEMORY_PROTECTION
		209	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		210	#endif
		211
		212	#if !MREMAP_MAYMOVE
		213	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		214	#endif
		215
		216	#define FOREIGN_MAGIC PERL_MAGIC_ext
		217
		218	static int ecb_cold
		219	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		220	{
		221	int old_errno = errno;
		222	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		223	errno = old_errno;
		224
		225	mg->mg_obj = 0; /* just in case */
		226
		227	SvREADONLY_off (sv);
		228
		229	if (SvPVX (sv) != mg->mg_ptr)
		230	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		231
		232	SvCUR_set (sv, 0);
		233	SvPVX (sv) = 0;
		234	SvOK_off (sv);
		235
		236	return 0;
		237	}
		238
		239	static MGVTBL mmap_vtbl = {
		240	0, 0, 0, 0, mmap_free
		241	};
		242
		243	static int ecb_cold
		244	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		245	{
		246	free (mg->mg_ptr);
		247	mg->mg_obj = 0; /* just in case */
		248
		249	SvREADONLY_off (sv);
		250
		251	if (SvPVX (sv) != mg->mg_ptr)
		252	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		253
		254	SvCUR_set (sv, 0);
		255	SvPVX (sv) = 0;
		256	SvOK_off (sv);
		257
		258	return 0;
		259	}
		260
		261	static MGVTBL sysfree_vtbl = {
		262	0, 0, 0, 0, sysfree_free
		263	};
		264
		265	/*****************************************************************************/
		266
		267	/* helper: set scalar to foreign ptr with custom free */
		268	static void
		269	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		270	{
		271	sv_force_normal (sv);
		272
		273	/* we store the length in mg_obj, as namlen is I32 :/ */
		274	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		275	->mg_obj = (SV *)length;
		276
		277	SvUPGRADE (sv, SVt_PV); /* nop... */
		278
		279	if (SvLEN (sv))
		280	Safefree (SvPVX (sv));
		281
		282	SvPVX (sv) = (char *)addr;
		283	SvCUR_set (sv, length);
		284	SvLEN_set (sv, 0);
		285	SvPOK_only (sv);
		286	}
		287
		288	static void
		289	sv_clear_foreign (SV *sv)
		290	{
		291	/* todo: iterate over magic and only free ours, but of course */
		292	/* the perl5porters will call that (correct) behaviour buggy */
		293	sv_unmagic (sv, FOREIGN_MAGIC);
		294	}
		295
		296	/*****************************************************************************/
		297
		298	/* defines all sorts of constants to 0 unless they are already defined */
		299	/* also provides const_iv_ and const_niv_ macros for them */
		300	#include "def0.h"
		301
		302	/*****************************************************************************/
		303
		304	static void
		305	fiemap (eio_req *req)
		306	{
		307	req->result = -1;
		308
		309	#if HAVE_FIEMAP
		310	/* assume some c99 */
		311	struct fiemap *fiemap = 0;
		312	size_t end_offset;
		313	int count = req->int3;
		314
		315	req->flags |= EIO_FLAG_PTR1_FREE;
		316
		317	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		318	/* increase in 3.5kb steps */
		319	if (count < 0)
		320	count = 8;
		321
		322	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		323	errno = ENOMEM;
		324	if (!fiemap)
		325	return;
		326
		327	req->ptr1 = fiemap;
		328
		329	fiemap->fm_start = req->offs;
		330	fiemap->fm_length = req->size;
		331	fiemap->fm_flags = req->int2;
		332	fiemap->fm_extent_count = count;
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		335	return;
		336
		337	if (req->int3 >= 0 /* not autosizing */
		338	|| !fiemap->fm_mapped_extents /* no more extents */
		339	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		340	goto done;
		341
		342	/* else we have to loop -
		343	* it would be tempting (actually I tried that first) to just query the
		344	* number of extents needed, but linux often feels like not returning all
		345	* extents, without telling us it left any out. this complicates
		346	* this quite a bit.
		347	*/
		348
		349	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		350
		351	for (;;)
		352	{
		353	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		354	char scratch[3072];
		355	struct fiemap *incmap = (struct fiemap *)scratch;
		356
		357	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		358	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		359	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		360	incmap->fm_flags = fiemap->fm_flags;
		361	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		362
		363	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		364	return;
		365
		366	if (!incmap->fm_mapped_extents)
		367	goto done;
		368
		369	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		370	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		371	errno = ENOMEM;
		372	if (!fiemap)
		373	return;
		374
		375	req->ptr1 = fiemap;
		376
		377	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		378	{
		379	struct fiemap_extent *e = incmap->fm_extents + count;
		380
		381	if (e->fe_logical + e->fe_length >= end_offset)
		382	goto done;
		383
		384	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		385
		386	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		387	goto done;
		388
		389	}
		390	}
		391
		392	done:
		393	req->result = 0;
		394
		395	#else
		396	errno = ENOSYS;
		397	#endif
		398	}
		399
		400	/*****************************************************************************/
325		401
326	enum {	402	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	403	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	404	};
329		405
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	406	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	407	typedef eio_req *aio_req_ornot;
		408	typedef eio_wd aio_wd;
334		409
335	static SV *on_next_submit;	410	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	411	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	412	static int max_outstanding;
338		413
339	static s_epipe respipe;	414	static s_epipe respipe;
340		415
341	static void req_destroy (aio_req req);	416	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	417	static void req_cancel (aio_req req);
343		418
344	static void want_poll (void)	419	static void
		420	want_poll (void)
345	{	421	{
346	/* write a dummy byte to the pipe so fh becomes ready */	422	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	423	s_epipe_signal (&respipe);
348	}	424	}
349		425
350	static void done_poll (void)	426	static void
		427	done_poll (void)
351	{	428	{
352	/* read any signals sent by the worker threads */	429	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	430	s_epipe_drain (&respipe);
354	}	431	}
355		432
356	/* must be called at most once */	433	/* must be called at most once */
		434	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	435	req_sv (aio_req req, HV *stash)
358	{	436	{
359	if (!req->self)	437	if (!req->self)
360	{	438	{
361	req->self = (SV *)newHV ();	439	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	440	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	441	}
364		442
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	443	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	444	}
367		445
368	static aio_req SvAIO_REQ (SV *sv)	446	static SV *
		447	newSVaio_wd (aio_wd wd)
		448	{
		449	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		450	}
		451
		452	static aio_req
		453	SvAIO_REQ (SV *sv)
369	{	454	{
370	MAGIC *mg;	455	MAGIC *mg;
371		456
372	if (!SvROK (sv)	457	if (!SvROK (sv)
		458	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	459	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	460	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	461	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	462	croak ("object of class IO::AIO::REQ expected");
377		463
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	464	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		465
380	return mg ? (aio_req)mg->mg_ptr : 0;	466	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	467	}
382		468
		469	static aio_wd
		470	SvAIO_WD (SV *sv)
		471	{
		472	if (!SvROK (sv)
		473	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		474	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		475	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		476
		477	return (aio_wd)(long)SvIVX (SvRV (sv));
		478	}
		479
		480	static SV *
		481	newmortalFH (int fd, int flags)
		482	{
		483	if (fd < 0)
		484	return &PL_sv_undef;
		485
		486	GV *gv = (GV *)sv_newmortal ();
		487	char sym[64];
		488	int symlen;
		489
		490	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		491	gv_init (gv, aio_stash, sym, symlen, 0);
		492
		493	symlen = snprintf (
		494	sym,
		495	sizeof (sym),
		496	"%s&=%d",
		497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		498	fd
		499	);
		500
		501	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		502	? (SV *)gv : &PL_sv_undef;
		503	}
		504
		505	static void
383	static void aio_grp_feed (aio_req grp)	506	aio_grp_feed (aio_req grp)
384	{	507	{
385	if (grp->sv2 && SvOK (grp->sv2))	508	if (grp->sv2 && SvOK (grp->sv2))
386	{	509	{
387	dSP;	510	dSP;
388		511
…		…
396	FREETMPS;	519	FREETMPS;
397	LEAVE;	520	LEAVE;
398	}	521	}
399	}	522	}
400		523
		524	static void
401	static void req_submit (eio_req *req)	525	req_submit (eio_req *req)
402	{	526	{
403	eio_submit (req);	527	eio_submit (req);
404		528
405	if (expect_false (on_next_submit))	529	if (expect_false (on_next_submit))
406	{	530	{
…		…
413	PUTBACK;	537	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	538	call_sv (cb, G_DISCARD | G_EVAL);
415	}	539	}
416	}	540	}
417		541
		542	static int
418	static int req_invoke (eio_req *req)	543	req_invoke (eio_req *req)
419	{	544	{
420	if (req->flags & FLAG_SV2_RO_OFF)	545	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	546	SvREADONLY_off (req->sv2);
422		547
423	if (!EIO_CANCELLED (req) && req->callback)	548	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	569	SvREADONLY_on (sv_result);
445	}	570	}
446		571
447	switch (req->type)	572	switch (req->type)
448	{	573	{
		574	case EIO_WD_OPEN:
		575	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		576	break;
		577
449	case EIO_READDIR:	578	case EIO_READDIR:
450	{	579	{
451	SV *rv = &PL_sv_undef;	580	SV *rv = &PL_sv_undef;
452		581
453	if (req->result >= 0)	582	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	635	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	636	}
508	break;	637	break;
509		638
510	case EIO_OPEN:	639	case EIO_OPEN:
511	{	640	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
512	/* convert fd to fh */
513	SV *fh = &PL_sv_undef;
514
515	if (req->result >= 0)
516	{
517	GV *gv = (GV *)sv_newmortal ();
518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519	char sym [64];
520	int symlen;
521
522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523	gv_init (gv, aio_stash, sym, symlen, 0);
524
525	symlen = snprintf (
526	sym,
527	sizeof (sym),
528	"%s&=%d",
529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530	(int)req->result
531	);
532
533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534	fh = (SV *)gv;
535	}
536
537	PUSHs (fh);
538	}
539	break;	641	break;
540		642
541	case EIO_STATVFS:	643	case EIO_STATVFS:
542	case EIO_FSTATVFS:	644	case EIO_FSTATVFS:
543	{	645	{
544	SV *rv = &PL_sv_undef;	646	SV *rv = &PL_sv_undef;
545		647
		648	#ifndef _WIN32
546	if (req->result >= 0)	649	if (req->result >= 0)
547	{	650	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	651	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	652	HV *hv = newHV ();
		653	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		654	* chooses to make it a struct.
		655	*/
		656	unsigned long fsid = 0;
		657	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		658
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	659	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		660
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	661	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	662	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	664	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	665	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	666	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	667	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	668	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	669	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	670	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	671	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	672	}
		673	#endif
565		674
566	PUSHs (rv);	675	PUSHs (rv);
567	}	676	}
568		677
569	break;	678	break;
…		…
593	break;	702	break;
594		703
595	case EIO_STAT:	704	case EIO_STAT:
596	case EIO_LSTAT:	705	case EIO_LSTAT:
597	case EIO_FSTAT:	706	case EIO_FSTAT:
598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	707	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		708
599	PL_laststatval = req->result;	709	if (!(PL_laststatval = req->result))
		710	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	711	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		712
601	PUSHs (sv_result);	713	PUSHs (sv_result);
		714	break;
		715
		716	case EIO_SEEK:
		717	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
602	break;	718	break;
603		719
604	case EIO_READ:	720	case EIO_READ:
605	{	721	{
606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	722	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
609	SvSETMAGIC (req->sv2);	725	SvSETMAGIC (req->sv2);
610	PUSHs (sv_result);	726	PUSHs (sv_result);
611	}	727	}
612	break;	728	break;
613		729
		730	case EIO_SLURP:
		731	{
		732	if (req->result >= 0)
		733	{
		734	/* if length was originally not known, we steal the malloc'ed memory */
		735	if (req->flags & EIO_FLAG_PTR2_FREE)
		736	{
		737	req->flags &= ~EIO_FLAG_PTR2_FREE;
		738	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		739	}
		740	else
		741	{
		742	SvCUR_set (req->sv2, req->result);
		743	*SvEND (req->sv2) = 0;
		744	SvPOK_only (req->sv2);
		745	}
		746
		747	SvSETMAGIC (req->sv2);
		748	}
		749
		750	PUSHs (sv_result);
		751	}
		752	break;
		753
		754	case EIO_CUSTOM:
		755	if (req->feed == fiemap)
		756	{
		757	#if HAVE_FIEMAP
		758	if (!req->result)
		759	{
		760	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		761
		762	if (fiemap->fm_extent_count)
		763	{
		764	AV *av = newAV ();
		765	int i;
		766
		767	while (fiemap->fm_mapped_extents)
		768	{
		769	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		770	AV *ext_av = newAV ();
		771
		772	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		773	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		774	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		775	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		776
		777	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		778	}
		779
		780	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		781	}
		782	else
		783	{
		784	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		785	PUSHs (sv_result);
		786	}
		787	}
		788	#endif
		789	}
		790	else
		791	PUSHs (sv_result);
		792	break;
		793
614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	794	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615	if (req->result > 0)	795	if (req->result > 0)
616	SvIV_set (sv_result, 0);	796	SvIV_set (sv_result, 0);
617	/* FALLTHROUGH */	797	/* FALLTHROUGH */
618		798
…		…
639	}	819	}
640		820
641	return !!SvTRUE (ERRSV);	821	return !!SvTRUE (ERRSV);
642	}	822	}
643		823
		824	static void
644	static void req_destroy (aio_req req)	825	req_destroy (aio_req req)
645	{	826	{
646	if (req->self)	827	if (req->self)
647	{	828	{
648	sv_unmagic (req->self, PERL_MAGIC_ext);	829	sv_unmagic (req->self, PERL_MAGIC_ext);
649	SvREFCNT_dec (req->self);	830	SvREFCNT_dec (req->self);
650	}	831	}
651		832
652	SvREFCNT_dec (req->sv1);	833	SvREFCNT_dec (req->sv1);
653	SvREFCNT_dec (req->sv2);	834	SvREFCNT_dec (req->sv2);
		835	SvREFCNT_dec (req->sv3);
		836	SvREFCNT_dec (req->sv4);
654	SvREFCNT_dec (req->callback);	837	SvREFCNT_dec (req->callback);
655		838
656	Safefree (req);	839	free (req);
657	}	840	}
658		841
		842	static void
659	static void req_cancel_subs (aio_req grp)	843	req_cancel_subs (aio_req grp)
660	{	844	{
661	aio_req sub;
662
663	if (grp->type != EIO_GROUP)	845	if (grp->type != EIO_GROUP)
664	return;	846	return;
665		847
666	SvREFCNT_dec (grp->sv2);	848	SvREFCNT_dec (grp->sv2);
667	grp->sv2 = 0;	849	grp->sv2 = 0;
668		850
669	eio_grp_cancel (grp);	851	eio_grp_cancel (grp);
670	}	852	}
671		853
		854	static void ecb_cold
672	static void create_respipe (void)	855	create_respipe (void)
673	{	856	{
674	if (s_epipe_renew (&respipe))	857	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	858	croak ("IO::AIO: unable to initialize result pipe");
676	}	859	}
677		860
678	static void poll_wait (void)	861	static void
		862	poll_wait (void)
679	{	863	{
680	while (eio_nreqs ())	864	while (eio_nreqs ())
681	{	865	{
682	int size;	866	int size;
683		867
684	X_LOCK (reslock);	868	X_LOCK (EIO_POOL->reslock);
685	size = res_queue.size;	869	size = EIO_POOL->res_queue.size;
686	X_UNLOCK (reslock);	870	X_UNLOCK (EIO_POOL->reslock);
687		871
688	if (size)	872	if (size)
689	return;	873	return;
690		874
691	etp_maybe_start_thread ();	875	etp_maybe_start_thread (EIO_POOL);
692		876
693	s_epipe_wait (&respipe);	877	s_epipe_wait (&respipe);
694	}	878	}
695	}	879	}
696		880
697	static int poll_cb (void)	881	static int
		882	poll_cb (void)
698	{	883	{
699	for (;;)	884	for (;;)
700	{	885	{
701	int res = eio_poll ();	886	int res = eio_poll ();
702		887
…		…
708		893
709	poll_wait ();	894	poll_wait ();
710	}	895	}
711	}	896	}
712		897
713	static void atfork_child (void)	898	static void ecb_cold
		899	reinit (void)
714	{	900	{
715	create_respipe ();	901	create_respipe ();
		902
		903	if (eio_init (want_poll, done_poll) < 0)
		904	croak ("IO::AIO: unable to initialise eio library");
716	}	905	}
717		906
718	/*****************************************************************************/	907	/*****************************************************************************/
719		908
720	#if !_POSIX_MAPPED_FILES	909	static SV *
721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
722	# define munmap(addr,length) (errno = ENOSYS, -1)
723	#endif
724
725	#if !_POSIX_MEMORY_PROTECTION
726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
727	# define PROT_NONE 0
728	# define PROT_WRITE 0
729	# define MAP_PRIVATE 0
730	# define MAP_SHARED 0
731	# define MAP_FIXED 0
732	#endif
733
734	#define MMAP_MAGIC PERL_MAGIC_ext
735
736	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
737	{
738	int old_errno = errno;
739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740	errno = old_errno;
741
742	mg->mg_obj = 0; /* just in case */
743
744	SvREADONLY_off (sv);
745
746	if (SvPVX (sv) != mg->mg_ptr)
747	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
748
749	SvCUR_set (sv, 0);
750	SvPVX (sv) = 0;
751	SvOK_off (sv);
752
753	return 0;
754	}
755
756	static MGVTBL mmap_vtbl = {
757	0, 0, 0, 0, mmap_free
758	};
759
760	/*****************************************************************************/
761
762	static SV * get_cb (SV *cb_sv)	910	get_cb (SV *cb_sv)
763	{	911	{
764	SvGETMAGIC (cb_sv);	912	SvGETMAGIC (cb_sv);
765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	913	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766	}	914	}
767		915
		916	static aio_req ecb_noinline
		917	dreq (SV *callback)
		918	{
		919	SV *cb_cv;
		920	aio_req req;
		921	int req_pri = next_pri;
		922	next_pri = EIO_PRI_DEFAULT;
		923
		924	cb_cv = get_cb (callback);
		925
		926	req = calloc (sizeof (*req), 1);
		927	if (!req)
		928	croak ("out of memory during eio_req allocation");
		929
		930	req->callback = SvREFCNT_inc (cb_cv);
		931	req->pri = req_pri;
		932
		933	return req;
		934	}
		935
768	#define dREQ \	936	#define dREQ \
769	SV *cb_cv; \	937	aio_req req = dreq (callback); \
770	aio_req req; \
771	int req_pri = next_pri; \
772	next_pri = EIO_PRI_DEFAULT; \
773	\
774	cb_cv = get_cb (callback); \
775	\
776	Newz (0, req, 1, eio_req); \
777	if (!req) \
778	croak ("out of memory during eio_req allocation"); \
779	\
780	req->callback = SvREFCNT_inc (cb_cv); \
781	req->pri = req_pri
782		938
783	#define REQ_SEND \	939	#define REQ_SEND \
784	PUTBACK; \	940	PUTBACK; \
785	req_submit (req); \	941	req_submit (req); \
786	SPAGAIN; \	942	SPAGAIN; \
787	\	943	\
788	if (GIMME_V != G_VOID) \	944	if (GIMME_V != G_VOID) \
789	XPUSHs (req_sv (req, aio_req_stash));	945	XPUSHs (req_sv (req, aio_req_stash));
790		946
		947	ecb_inline void
		948	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		949	{
		950	if (expect_false (SvROK (path)))
		951	{
		952	SV *rv = SvRV (path);
		953	SV *wdob;
		954
		955	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		956	{
		957	path = AvARRAY (rv)[1];
		958	wdob = AvARRAY (rv)[0];
		959
		960	if (SvOK (wdob))
		961	{
		962	*wd = SvAIO_WD (wdob);
		963	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		964	}
		965	else
		966	*wd = EIO_INVALID_WD;
		967	}
		968	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		969	{
		970	*wd = (aio_wd)(long)SvIVX (rv);
		971	*wdsv = SvREFCNT_inc_NN (rv);
		972	*ptr = ".";
		973	return; /* path set to "." */
		974	}
		975	else
		976	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		977	}
		978
		979	*pathsv = newSVsv (path);
		980	*ptr = SvPVbyte_nolen (*pathsv);
		981	}
		982
		983	static void ecb_noinline
		984	req_set_path1 (aio_req req, SV *path)
		985	{
		986	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		987	}
		988
		989	static void ecb_noinline
		990	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		991	{
		992	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		993
		994	switch (SvTYPE (rv))
		995	{
		996	case SVt_PVIO:
		997	case SVt_PVLV:
		998	case SVt_PVGV:
		999	req->type = type_fh;
		1000	req->sv1 = newSVsv (fh_or_path);
		1001	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1002	break;
		1003
		1004	default:
		1005	req->type = type_path;
		1006	req_set_path1 (req, fh_or_path);
		1007	break;
		1008	}
		1009	}
		1010
		1011	/*****************************************************************************/
		1012
		1013	static void
		1014	ts_set (struct timespec *ts, NV value)
		1015	{
		1016	ts->tv_sec = value;
		1017	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1018	}
		1019
		1020	static NV
		1021	ts_get (const struct timespec *ts)
		1022	{
		1023	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1024	}
		1025
		1026	/*****************************************************************************/
		1027
		1028	XS(boot_IO__AIO) ecb_cold;
		1029
791	MODULE = IO::AIO PACKAGE = IO::AIO	1030	MODULE = IO::AIO PACKAGE = IO::AIO
792		1031
793	PROTOTYPES: ENABLE	1032	PROTOTYPES: ENABLE
794		1033
795	BOOT:	1034	BOOT:
…		…
799	IV iv;	1038	IV iv;
800	} *civ, const_iv[] = {	1039	} *civ, const_iv[] = {
801	# define const_niv(name, value) { # name, (IV) value },	1040	# define const_niv(name, value) { # name, (IV) value },
802	# define const_iv(name) { # name, (IV) name },	1041	# define const_iv(name) { # name, (IV) name },
803	# define const_eio(name) { # name, (IV) EIO_ ## name },	1042	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1043
		1044	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1045	/* the first block can be undef if missing */
		1046	const_iv (ENOSYS)
804	const_iv (EXDEV)	1047	const_iv (EXDEV)
805	const_iv (ENOSYS)	1048	const_iv (EBADR)
		1049
		1050	/* for lseek */
		1051	const_iv (SEEK_DATA)
		1052	const_iv (SEEK_HOLE)
		1053
		1054	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1055	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1056	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1057	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1058	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1059	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1060
		1061	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1062	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1063	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1064	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1065	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1066
		1067	/* the second block will be 0 when missing */
		1068	const_iv (O_ACCMODE)
		1069
806	const_iv (O_RDONLY)	1070	const_iv (O_RDONLY)
807	const_iv (O_WRONLY)	1071	const_iv (O_WRONLY)
808	const_iv (O_RDWR)	1072	const_iv (O_RDWR)
809	const_iv (O_CREAT)	1073	const_iv (O_CREAT)
810	const_iv (O_TRUNC)	1074	const_iv (O_TRUNC)
…		…
823	const_iv (O_SEARCH)	1087	const_iv (O_SEARCH)
824	const_iv (O_DIRECTORY)	1088	const_iv (O_DIRECTORY)
825	const_iv (O_DSYNC)	1089	const_iv (O_DSYNC)
826	const_iv (O_RSYNC)	1090	const_iv (O_RSYNC)
827	const_iv (O_SYNC)	1091	const_iv (O_SYNC)
		1092	const_iv (O_PATH)
		1093	const_iv (O_TMPFILE)
828	const_iv (O_TTY_INIT)	1094	const_iv (O_TTY_INIT)
829		1095
830	const_iv (S_IFIFO)	1096	const_iv (S_IFIFO)
831	const_iv (S_IFCHR)	1097	const_iv (S_IFCHR)
832	const_iv (S_IFBLK)	1098	const_iv (S_IFBLK)
…		…
834	const_iv (S_IFREG)	1100	const_iv (S_IFREG)
835	const_iv (S_IFDIR)	1101	const_iv (S_IFDIR)
836	const_iv (S_IFWHT)	1102	const_iv (S_IFWHT)
837	const_iv (S_IFSOCK)	1103	const_iv (S_IFSOCK)
838	const_iv (S_IFMT)	1104	const_iv (S_IFMT)
839
840	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
841	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
842	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
843	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
844	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
845	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
846
847	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
848	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
849	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
850	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
851	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
852		1105
853	const_iv (ST_RDONLY)	1106	const_iv (ST_RDONLY)
854	const_iv (ST_NOSUID)	1107	const_iv (ST_NOSUID)
855	const_iv (ST_NODEV)	1108	const_iv (ST_NODEV)
856	const_iv (ST_NOEXEC)	1109	const_iv (ST_NOEXEC)
…		…
866	const_iv (PROT_NONE)	1119	const_iv (PROT_NONE)
867	const_iv (PROT_EXEC)	1120	const_iv (PROT_EXEC)
868	const_iv (PROT_READ)	1121	const_iv (PROT_READ)
869	const_iv (PROT_WRITE)	1122	const_iv (PROT_WRITE)
870		1123
871	/*const_iv (MAP_FIXED)*/
872	const_iv (MAP_PRIVATE)	1124	const_iv (MAP_PRIVATE)
873	const_iv (MAP_SHARED)	1125	const_iv (MAP_SHARED)
		1126	const_iv (MAP_FIXED)
874	const_iv (MAP_ANONYMOUS)	1127	const_iv (MAP_ANONYMOUS)
875		1128
876	/* linuxish */	1129	/* linuxish */
877	const_iv (MAP_HUGETLB)
878	const_iv (MAP_LOCKED)	1130	const_iv (MAP_LOCKED)
879	const_iv (MAP_NORESERVE)	1131	const_iv (MAP_NORESERVE)
880	const_iv (MAP_POPULATE)	1132	const_iv (MAP_POPULATE)
881	const_iv (MAP_NONBLOCK)	1133	const_iv (MAP_NONBLOCK)
		1134	const_iv (MAP_GROWSDOWN)
		1135	const_iv (MAP_32BIT)
		1136	const_iv (MAP_HUGETLB)
		1137	const_iv (MAP_STACK)
		1138
		1139	const_iv (MREMAP_MAYMOVE)
		1140	const_iv (MREMAP_FIXED)
		1141
		1142	const_iv (F_DUPFD_CLOEXEC)
		1143
		1144	const_iv (MSG_CMSG_CLOEXEC)
		1145	const_iv (SOCK_CLOEXEC)
		1146
		1147	const_iv (F_OFD_GETLK)
		1148	const_iv (F_OFD_SETLK)
		1149	const_iv (F_OFD_GETLKW)
		1150
		1151	const_iv (FIFREEZE)
		1152	const_iv (FITHAW)
		1153	const_iv (FITRIM)
		1154	const_iv (FICLONE)
		1155	const_iv (FICLONERANGE)
		1156	const_iv (FIDEDUPERANGE)
		1157
		1158	const_iv (FS_IOC_GETFLAGS)
		1159	const_iv (FS_IOC_SETFLAGS)
		1160	const_iv (FS_IOC_GETVERSION)
		1161	const_iv (FS_IOC_SETVERSION)
		1162	const_iv (FS_IOC_FIEMAP)
		1163	const_iv (FS_IOC_FSGETXATTR)
		1164	const_iv (FS_IOC_FSSETXATTR)
		1165	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1166	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1167	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1168
		1169	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1170
		1171	const_iv (FS_SECRM_FL)
		1172	const_iv (FS_UNRM_FL)
		1173	const_iv (FS_COMPR_FL)
		1174	const_iv (FS_SYNC_FL)
		1175	const_iv (FS_IMMUTABLE_FL)
		1176	const_iv (FS_APPEND_FL)
		1177	const_iv (FS_NODUMP_FL)
		1178	const_iv (FS_NOATIME_FL)
		1179	const_iv (FS_DIRTY_FL)
		1180	const_iv (FS_COMPRBLK_FL)
		1181	const_iv (FS_NOCOMP_FL)
		1182	const_iv (FS_ENCRYPT_FL)
		1183	const_iv (FS_BTREE_FL)
		1184	const_iv (FS_INDEX_FL)
		1185	const_iv (FS_JOURNAL_DATA_FL)
		1186	const_iv (FS_NOTAIL_FL)
		1187	const_iv (FS_DIRSYNC_FL)
		1188	const_iv (FS_TOPDIR_FL)
		1189	const_iv (FS_FL_USER_MODIFIABLE)
		1190
		1191	const_iv (FS_XFLAG_REALTIME)
		1192	const_iv (FS_XFLAG_PREALLOC)
		1193	const_iv (FS_XFLAG_IMMUTABLE)
		1194	const_iv (FS_XFLAG_APPEND)
		1195	const_iv (FS_XFLAG_SYNC)
		1196	const_iv (FS_XFLAG_NOATIME)
		1197	const_iv (FS_XFLAG_NODUMP)
		1198	const_iv (FS_XFLAG_RTINHERIT)
		1199	const_iv (FS_XFLAG_PROJINHERIT)
		1200	const_iv (FS_XFLAG_NOSYMLINKS)
		1201	const_iv (FS_XFLAG_EXTSIZE)
		1202	const_iv (FS_XFLAG_EXTSZINHERIT)
		1203	const_iv (FS_XFLAG_NODEFRAG)
		1204	const_iv (FS_XFLAG_FILESTREAM)
		1205	const_iv (FS_XFLAG_DAX)
		1206	const_iv (FS_XFLAG_HASATTR)
		1207
		1208	const_iv (FIEMAP_FLAG_SYNC)
		1209	const_iv (FIEMAP_FLAG_XATTR)
		1210	const_iv (FIEMAP_FLAGS_COMPAT)
		1211	const_iv (FIEMAP_EXTENT_LAST)
		1212	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1213	const_iv (FIEMAP_EXTENT_DELALLOC)
		1214	const_iv (FIEMAP_EXTENT_ENCODED)
		1215	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1216	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1217	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1218	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1219	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1220	const_iv (FIEMAP_EXTENT_MERGED)
		1221	const_iv (FIEMAP_EXTENT_SHARED)
		1222
		1223	const_iv (SPLICE_F_MOVE)
		1224	const_iv (SPLICE_F_NONBLOCK)
		1225	const_iv (SPLICE_F_MORE)
		1226	const_iv (SPLICE_F_GIFT)
		1227
		1228	const_iv (EFD_CLOEXEC)
		1229	const_iv (EFD_NONBLOCK)
		1230	const_iv (EFD_SEMAPHORE)
		1231
		1232	const_iv (CLOCK_REALTIME)
		1233	const_iv (CLOCK_MONOTONIC)
		1234	const_iv (CLOCK_BOOTTIME)
		1235	const_iv (CLOCK_REALTIME_ALARM)
		1236	const_iv (CLOCK_BOOTTIME_ALARM)
		1237
		1238	const_iv (TFD_NONBLOCK)
		1239	const_iv (TFD_CLOEXEC)
		1240
		1241	const_iv (TFD_TIMER_ABSTIME)
		1242	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1243
		1244	/* these are libeio constants, and are independent of gendef0 */
		1245	const_eio (SEEK_SET)
		1246	const_eio (SEEK_CUR)
		1247	const_eio (SEEK_END)
882		1248
883	const_eio (MCL_FUTURE)	1249	const_eio (MCL_FUTURE)
884	const_eio (MCL_CURRENT)	1250	const_eio (MCL_CURRENT)
885		1251
886	const_eio (MS_ASYNC)	1252	const_eio (MS_ASYNC)
…		…
892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1258	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893	const_eio (SYNC_FILE_RANGE_WRITE)	1259	const_eio (SYNC_FILE_RANGE_WRITE)
894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1260	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
895		1261
896	const_eio (FALLOC_FL_KEEP_SIZE)	1262	const_eio (FALLOC_FL_KEEP_SIZE)
		1263	const_eio (FALLOC_FL_PUNCH_HOLE)
		1264	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1265	const_eio (FALLOC_FL_ZERO_RANGE)
		1266	const_eio (FALLOC_FL_INSERT_RANGE)
		1267	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1268
		1269	const_eio (RENAME_NOREPLACE)
		1270	const_eio (RENAME_EXCHANGE)
		1271	const_eio (RENAME_WHITEOUT)
897		1272
898	const_eio (READDIR_DENTS)	1273	const_eio (READDIR_DENTS)
899	const_eio (READDIR_DIRS_FIRST)	1274	const_eio (READDIR_DIRS_FIRST)
900	const_eio (READDIR_STAT_ORDER)	1275	const_eio (READDIR_STAT_ORDER)
901	const_eio (READDIR_FOUND_UNKNOWN)	1276	const_eio (READDIR_FOUND_UNKNOWN)
…		…
912	};	1287	};
913		1288
914	aio_stash = gv_stashpv ("IO::AIO" , 1);	1289	aio_stash = gv_stashpv ("IO::AIO" , 1);
915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1290	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1291	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1292	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
917		1293
918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1294	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
919	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1295	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
920		1296
921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1297	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922		1298
923	create_respipe ();	1299	reinit ();
924
925	if (eio_init (want_poll, done_poll) < 0)
926	croak ("IO::AIO: unable to initialise eio library");
927
928	/* atfork child called in fifo order, so before eio's handler */
929	X_THREAD_ATFORK (0, 0, atfork_child);
930	}	1300	}
		1301
		1302	void
		1303	reinit ()
		1304	PROTOTYPE:
931		1305
932	void	1306	void
933	max_poll_reqs (unsigned int nreqs)	1307	max_poll_reqs (unsigned int nreqs)
934	PROTOTYPE: $	1308	PROTOTYPE: $
935	CODE:	1309	CODE:
…		…
970	PROTOTYPE: $	1344	PROTOTYPE: $
971	CODE:	1345	CODE:
972	max_outstanding = maxreqs;	1346	max_outstanding = maxreqs;
973		1347
974	void	1348	void
975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1349	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
976	PPCODE:	1350	PPCODE:
977	{	1351	{
978	dREQ;	1352	dREQ;
979		1353
		1354	req->type = EIO_WD_OPEN;
		1355	req_set_path1 (req, pathname);
		1356
		1357	REQ_SEND;
		1358	}
		1359
		1360	void
		1361	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1362	PPCODE:
		1363	{
		1364	dREQ;
		1365
980	req->type = EIO_OPEN;	1366	req->type = EIO_OPEN;
981	req->sv1 = newSVsv (pathname);	1367	req_set_path1 (req, pathname);
982	req->ptr1 = SvPVbyte_nolen (req->sv1);
983	req->int1 = flags;	1368	req->int1 = flags;
984	req->int2 = mode;	1369	req->int2 = mode;
985		1370
986	REQ_SEND;	1371	REQ_SEND;
987	}	1372	}
988		1373
989	void	1374	void
990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1375	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
991	ALIAS:	1376	ALIAS:
992	aio_fsync = EIO_FSYNC	1377	aio_fsync = EIO_FSYNC
993	aio_fdatasync = EIO_FDATASYNC	1378	aio_fdatasync = EIO_FDATASYNC
		1379	aio_syncfs = EIO_SYNCFS
994	PPCODE:	1380	PPCODE:
995	{	1381	{
996	int fd = s_fileno_croak (fh, 0);	1382	int fd = s_fileno_croak (fh, 0);
997	dREQ;	1383	dREQ;
998		1384
999	req->type = ix;	1385	req->type = ix;
1000	req->sv1 = newSVsv (fh);	1386	req->sv1 = newSVsv (fh);
1001	req->int1 = fd;	1387	req->int1 = fd;
1002		1388
1003	REQ_SEND (req);	1389	REQ_SEND;
1004	}	1390	}
1005		1391
1006	void	1392	void
1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1393	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1008	PPCODE:	1394	PPCODE:
1009	{	1395	{
1010	int fd = s_fileno_croak (fh, 0);	1396	int fd = s_fileno_croak (fh, 0);
1011	dREQ;	1397	dREQ;
1012		1398
1013	req->type = EIO_SYNC_FILE_RANGE;	1399	req->type = EIO_SYNC_FILE_RANGE;
1014	req->sv1 = newSVsv (fh);	1400	req->sv1 = newSVsv (fh);
1015	req->int1 = fd;	1401	req->int1 = fd;
1016	req->offs = offset;	1402	req->offs = offset;
1017	req->size = nbytes;	1403	req->size = nbytes;
1018	req->int2 = flags;	1404	req->int2 = flags;
1019		1405
1020	REQ_SEND (req);	1406	REQ_SEND;
1021	}	1407	}
1022		1408
1023	void	1409	void
1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1410	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1025	PPCODE:	1411	PPCODE:
1026	{	1412	{
1027	int fd = s_fileno_croak (fh, 0);	1413	int fd = s_fileno_croak (fh, 0);
1028	dREQ;	1414	dREQ;
1029		1415
1030	req->type = EIO_FALLOCATE;	1416	req->type = EIO_FALLOCATE;
1031	req->sv1 = newSVsv (fh);	1417	req->sv1 = newSVsv (fh);
1032	req->int1 = fd;	1418	req->int1 = fd;
1033	req->int2 = mode;	1419	req->int2 = mode;
1034	req->offs = offset;	1420	req->offs = offset;
1035	req->size = len;	1421	req->size = len;
1036		1422
1037	REQ_SEND (req);	1423	REQ_SEND;
1038	}	1424	}
1039		1425
1040	void	1426	void
1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1427	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1042	PPCODE:	1428	PPCODE:
1043	{	1429	{
1044	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1430	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1045	int fd = s_fileno_croak (fh, 0);	1431	int fd = s_fileno_croak (fh, 0);
1046	dREQ;	1432	dREQ;
1047		1433
1048	if (close_pipe < 0)	1434	if (expect_false (close_fd < 0))
1049	{	1435	{
1050	int pipefd [2];	1436	int pipefd [2];
1051		1437
		1438	if (
		1439	#ifdef _WIN32
		1440	_pipe (pipefd, 1, _O_BINARY) < 0
		1441	#else
1052	if (pipe (pipefd) < 0	1442	pipe (pipefd) < 0
1053	|| close (pipefd [1]) < 0
1054	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1443	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1444	#endif
		1445	|| close (pipefd [1]) < 0
		1446	)
1055	abort (); /*D*/	1447	abort (); /*D*/
1056		1448
1057	close_pipe = pipefd [0];	1449	close_fd = pipefd [0];
1058	}	1450	}
1059		1451
1060	req->type = EIO_DUP2;	1452	req->type = EIO_DUP2;
1061	req->int1 = close_pipe;	1453	req->int1 = close_fd;
1062	req->sv2 = newSVsv (fh);	1454	req->sv2 = newSVsv (fh);
1063	req->int2 = fd;	1455	req->int2 = fd;
1064		1456
1065	REQ_SEND (req);	1457	REQ_SEND;
1066	}	1458	}
1067		1459
1068	void	1460	void
		1461	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1462	PPCODE:
		1463	{
		1464	int fd = s_fileno_croak (fh, 0);
		1465	dREQ;
		1466
		1467	req->type = EIO_SEEK;
		1468	req->sv1 = newSVsv (fh);
		1469	req->int1 = fd;
		1470	req->offs = SvVAL64 (offset);
		1471	req->int2 = whence;
		1472
		1473	REQ_SEND;
		1474	}
		1475
		1476	void
1069	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1477	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1070	ALIAS:	1478	ALIAS:
1071	aio_read = EIO_READ	1479	aio_read = EIO_READ
1072	aio_write = EIO_WRITE	1480	aio_write = EIO_WRITE
1073	PPCODE:	1481	PPCODE:
1074	{	1482	{
…		…
1090	len = svlen - dataoffset;	1498	len = svlen - dataoffset;
1091	}	1499	}
1092	else	1500	else
1093	{	1501	{
1094	/* read: check type and grow scalar as necessary */	1502	/* read: check type and grow scalar as necessary */
1095	SvUPGRADE (data, SVt_PV);	1503	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1096	svptr = SvGROW (data, len + dataoffset + 1);	1504	svptr = sv_grow (data, len + dataoffset + 1);
		1505	else if (SvCUR (data) < len + dataoffset)
		1506	croak ("length + dataoffset outside of scalar, and cannot grow");
1097	}	1507	}
1098		1508
1099	{	1509	{
1100	dREQ;	1510	dREQ;
1101		1511
…		…
1117	REQ_SEND;	1527	REQ_SEND;
1118	}	1528	}
1119	}	1529	}
1120		1530
1121	void	1531	void
		1532	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1533	ALIAS:
		1534	aio_ioctl = EIO_IOCTL
		1535	aio_fcntl = EIO_FCNTL
		1536	PPCODE:
		1537	{
		1538	int fd = s_fileno_croak (fh, 0);
		1539	char *svptr;
		1540
		1541	if (SvPOK (arg) || !SvNIOK (arg))
		1542	{
		1543	STRLEN svlen;
		1544	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1545	#ifdef IOCPARM_LEN
		1546	STRLEN need = IOCPARM_LEN (request);
		1547	#else
		1548	STRLEN need = 256;
		1549	#endif
		1550
		1551	if (svlen < need)
		1552	svptr = SvGROW (arg, need);
		1553	}
		1554	else
		1555	svptr = (char *)SvIV (arg);
		1556
		1557	{
		1558	dREQ;
		1559
		1560	req->type = ix;
		1561	req->sv1 = newSVsv (fh);
		1562	req->int1 = fd;
		1563	req->int2 = (long)request;
		1564	req->sv2 = SvREFCNT_inc (arg);
		1565	req->ptr2 = svptr;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
1122	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1572	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1123	ALIAS:	1573	ALIAS:
1124	aio_readlink = EIO_READLINK	1574	aio_readlink = EIO_READLINK
1125	aio_realpath = EIO_REALPATH	1575	aio_realpath = EIO_REALPATH
1126	PPCODE:	1576	PPCODE:
1127	{	1577	{
1128	SV *data;
1129	dREQ;	1578	dREQ;
1130		1579
1131	req->type = ix;	1580	req->type = ix;
1132	req->sv1 = newSVsv (path);	1581	req_set_path1 (req, pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134		1582
1135	REQ_SEND;	1583	REQ_SEND;
1136	}	1584	}
1137		1585
1138	void	1586	void
1139	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1587	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1140	PPCODE:	1588	PPCODE:
1141	{	1589	{
1142	int ifd = s_fileno_croak (in_fh , 0);	1590	int ifd = s_fileno_croak (in_fh , 0);
1143	int ofd = s_fileno_croak (out_fh, 1);	1591	int ofd = s_fileno_croak (out_fh, 1);
1144	dREQ;	1592	dREQ;
1145		1593
1146	req->type = EIO_SENDFILE;	1594	req->type = EIO_SENDFILE;
1147	req->sv1 = newSVsv (out_fh);	1595	req->sv1 = newSVsv (out_fh);
1148	req->int1 = ofd;	1596	req->int1 = ofd;
…		…
1153		1601
1154	REQ_SEND;	1602	REQ_SEND;
1155	}	1603	}
1156		1604
1157	void	1605	void
1158	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1606	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1159	PPCODE:	1607	PPCODE:
1160	{	1608	{
1161	int fd = s_fileno_croak (fh, 0);	1609	int fd = s_fileno_croak (fh, 0);
1162	dREQ;	1610	dREQ;
1163		1611
1164	req->type = EIO_READAHEAD;	1612	req->type = EIO_READAHEAD;
1165	req->sv1 = newSVsv (fh);	1613	req->sv1 = newSVsv (fh);
1166	req->int1 = fd;	1614	req->int1 = fd;
…		…
1169		1617
1170	REQ_SEND;	1618	REQ_SEND;
1171	}	1619	}
1172		1620
1173	void	1621	void
1174	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1622	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1175	ALIAS:	1623	ALIAS:
1176	aio_stat = EIO_STAT	1624	aio_stat = EIO_STAT
1177	aio_lstat = EIO_LSTAT	1625	aio_lstat = EIO_LSTAT
1178	aio_statvfs = EIO_STATVFS	1626	aio_statvfs = EIO_STATVFS
1179	PPCODE:	1627	PPCODE:
1180	{	1628	{
1181	dREQ;	1629	dREQ;
1182		1630
1183	req->sv1 = newSVsv (fh_or_path);	1631	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1184
1185	if (SvPOK (req->sv1))
1186	{
1187	req->type = ix;
1188	req->ptr1 = SvPVbyte_nolen (req->sv1);
1189	}
1190	else
1191	{
1192	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1193	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1194	}
1195		1632
1196	REQ_SEND;	1633	REQ_SEND;
1197	}	1634	}
		1635
		1636	void
		1637	st_xtime ()
		1638	ALIAS:
		1639	st_atime = 1
		1640	st_mtime = 2
		1641	st_ctime = 4
		1642	st_xtime = 7
		1643	PPCODE:
		1644	EXTEND (SP, 3);
		1645	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1646	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1647	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1648
		1649	void
		1650	st_xtimensec ()
		1651	ALIAS:
		1652	st_atimensec = 1
		1653	st_mtimensec = 2
		1654	st_ctimensec = 4
		1655	st_xtimensec = 7
		1656	PPCODE:
		1657	EXTEND (SP, 3);
		1658	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1659	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1660	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1198		1661
1199	UV	1662	UV
1200	major (UV dev)	1663	major (UV dev)
1201	ALIAS:	1664	ALIAS:
1202	minor = 1	1665	minor = 1
1203	CODE:	1666	CODE:
1204	RETVAL = ix ? major (dev) : minor (dev);	1667	RETVAL = ix ? minor (dev) : major (dev);
1205	OUTPUT:	1668	OUTPUT:
1206	RETVAL	1669	RETVAL
1207		1670
1208	UV	1671	UV
1209	makedev (UV maj, UV min)	1672	makedev (UV maj, UV min)
…		…
1211	RETVAL = makedev (maj, min);	1674	RETVAL = makedev (maj, min);
1212	OUTPUT:	1675	OUTPUT:
1213	RETVAL	1676	RETVAL
1214		1677
1215	void	1678	void
1216	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1679	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1217	PPCODE:	1680	PPCODE:
1218	{	1681	{
1219	dREQ;	1682	dREQ;
1220		1683
1221	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1684	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1222	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1685	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1223	req->sv1 = newSVsv (fh_or_path);	1686	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1224
1225	if (SvPOK (req->sv1))
1226	{
1227	req->type = EIO_UTIME;
1228	req->ptr1 = SvPVbyte_nolen (req->sv1);
1229	}
1230	else
1231	{
1232	req->type = EIO_FUTIME;
1233	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1234	}
1235		1687
1236	REQ_SEND;	1688	REQ_SEND;
1237	}	1689	}
1238		1690
1239	void	1691	void
1240	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1692	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1241	PPCODE:	1693	PPCODE:
1242	{	1694	{
1243	dREQ;	1695	dREQ;
1244		1696
1245	req->sv1 = newSVsv (fh_or_path);
1246	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1697	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1247		1698	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1248	if (SvPOK (req->sv1))
1249	{
1250	req->type = EIO_TRUNCATE;
1251	req->ptr1 = SvPVbyte_nolen (req->sv1);
1252	}
1253	else
1254	{
1255	req->type = EIO_FTRUNCATE;
1256	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1257	}
1258		1699
1259	REQ_SEND;	1700	REQ_SEND;
1260	}	1701	}
1261		1702
1262	void	1703	void
1263	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1704	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1264	ALIAS:
1265	aio_chmod = EIO_CHMOD
1266	aio_mkdir = EIO_MKDIR
1267	PPCODE:	1705	PPCODE:
1268	{	1706	{
1269	dREQ;	1707	dREQ;
1270		1708
1271	req->int2 = mode;	1709	req->int2 = mode;
1272	req->sv1 = newSVsv (fh_or_path);	1710	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1273
1274	if (SvPOK (req->sv1))
1275	{
1276	req->type = ix;
1277	req->ptr1 = SvPVbyte_nolen (req->sv1);
1278	}
1279	else
1280	{
1281	req->type = EIO_FCHMOD;
1282	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1283	}
1284		1711
1285	REQ_SEND;	1712	REQ_SEND;
1286	}	1713	}
1287		1714
1288	void	1715	void
1289	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1716	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1290	PPCODE:	1717	PPCODE:
1291	{	1718	{
1292	dREQ;	1719	dREQ;
1293		1720
1294	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1721	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1295	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1722	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1296	req->sv1 = newSVsv (fh_or_path);	1723	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1297
1298	if (SvPOK (req->sv1))
1299	{
1300	req->type = EIO_CHOWN;
1301	req->ptr1 = SvPVbyte_nolen (req->sv1);
1302	}
1303	else
1304	{
1305	req->type = EIO_FCHOWN;
1306	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1307	}
1308		1724
1309	REQ_SEND;	1725	REQ_SEND;
1310	}	1726	}
1311		1727
1312	void	1728	void
1313	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1729	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1314	PPCODE:	1730	PPCODE:
1315	{	1731	{
1316	dREQ;	1732	dREQ;
1317		1733
1318	req->type = EIO_READDIR;	1734	req->type = EIO_READDIR;
1319	req->sv1 = newSVsv (pathname);
1320	req->ptr1 = SvPVbyte_nolen (req->sv1);
1321	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1735	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1322		1736
1323	if (flags & EIO_READDIR_DENTS)	1737	if (flags & EIO_READDIR_DENTS)
1324	req->int1 |= EIO_READDIR_CUSTOM2;	1738	req->int1 |= EIO_READDIR_CUSTOM2;
1325		1739
		1740	req_set_path1 (req, pathname);
		1741
1326	REQ_SEND;	1742	REQ_SEND;
1327	}	1743	}
1328		1744
1329	void	1745	void
		1746	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1747	PPCODE:
		1748	{
		1749	dREQ;
		1750
		1751	req->type = EIO_MKDIR;
		1752	req->int2 = mode;
		1753	req_set_path1 (req, pathname);
		1754
		1755	REQ_SEND;
		1756	}
		1757
		1758	void
1330	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1759	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1331	ALIAS:	1760	ALIAS:
1332	aio_unlink = EIO_UNLINK	1761	aio_unlink = EIO_UNLINK
1333	aio_rmdir = EIO_RMDIR	1762	aio_rmdir = EIO_RMDIR
1334	aio_readdir = EIO_READDIR	1763	aio_readdir = EIO_READDIR
1335	PPCODE:	1764	PPCODE:
1336	{	1765	{
1337	dREQ;	1766	dREQ;
1338		1767
1339	req->type = ix;	1768	req->type = ix;
1340	req->sv1 = newSVsv (pathname);	1769	req_set_path1 (req, pathname);
1341	req->ptr1 = SvPVbyte_nolen (req->sv1);
1342		1770
1343	REQ_SEND;	1771	REQ_SEND;
1344	}	1772	}
1345		1773
1346	void	1774	void
1347	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1775	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1348	ALIAS:	1776	ALIAS:
1349	aio_link = EIO_LINK	1777	aio_link = EIO_LINK
1350	aio_symlink = EIO_SYMLINK	1778	aio_symlink = EIO_SYMLINK
1351	aio_rename = EIO_RENAME	1779	aio_rename = EIO_RENAME
1352	PPCODE:	1780	PPCODE:
1353	{	1781	{
		1782	eio_wd wd2 = 0;
1354	dREQ;	1783	dREQ;
1355		1784
1356	req->type = ix;	1785	req->type = ix;
1357	req->sv1 = newSVsv (oldpath);	1786	req_set_path1 (req, oldpath);
1358	req->ptr1 = SvPVbyte_nolen (req->sv1);	1787	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1359	req->sv2 = newSVsv (newpath);	1788	req->int3 = (long)wd2;
1360	req->ptr2 = SvPVbyte_nolen (req->sv2);
1361		1789
1362	REQ_SEND;	1790	REQ_SEND;
1363	}	1791	}
1364		1792
1365	void	1793	void
		1794	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1795	PPCODE:
		1796	{
		1797	eio_wd wd2 = 0;
		1798	dREQ;
		1799
		1800	req->type = EIO_RENAME;
		1801	req_set_path1 (req, oldpath);
		1802	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1803	req->int2 = flags;
		1804	req->int3 = (long)wd2;
		1805
		1806	REQ_SEND;
		1807	}
		1808
		1809	void
1366	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1810	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1367	PPCODE:	1811	PPCODE:
1368	{	1812	{
1369	dREQ;	1813	dREQ;
1370		1814
1371	req->type = EIO_MKNOD;	1815	req->type = EIO_MKNOD;
1372	req->sv1 = newSVsv (pathname);
1373	req->ptr1 = SvPVbyte_nolen (req->sv1);
1374	req->int2 = (mode_t)mode;	1816	req->int2 = (mode_t)mode;
1375	req->offs = dev;	1817	req->offs = dev;
		1818	req_set_path1 (req, pathname);
1376		1819
1377	REQ_SEND;	1820	REQ_SEND;
1378	}	1821	}
1379		1822
1380	void	1823	void
1381	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1824	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1382	ALIAS:	1825	ALIAS:
1383	aio_mtouch = EIO_MTOUCH	1826	aio_mtouch = EIO_MTOUCH
1384	aio_msync = EIO_MSYNC	1827	aio_msync = EIO_MSYNC
1385	PPCODE:	1828	PPCODE:
1386	{	1829	{
1387	STRLEN svlen;	1830	STRLEN svlen;
1388	char *svptr = SvPVbyte (data, svlen);	1831	char *svptr = SvPVbyte (data, svlen);
1389	UV len = SvUV (length);	1832	UV len = SvUV (length);
		1833
		1834	if (flags < 0)
		1835	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1390		1836
1391	if (offset < 0)	1837	if (offset < 0)
1392	offset += svlen;	1838	offset += svlen;
1393		1839
1394	if (offset < 0 || offset > svlen)	1840	if (offset < 0 || offset > svlen)
…		…
1409	REQ_SEND;	1855	REQ_SEND;
1410	}	1856	}
1411	}	1857	}
1412		1858
1413	void	1859	void
1414	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1860	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1415	PPCODE:	1861	PPCODE:
1416	{	1862	{
1417	STRLEN svlen;	1863	STRLEN svlen;
1418	char *svptr = SvPVbyte (data, svlen);	1864	char *svptr = SvPVbyte (data, svlen);
1419	UV len = SvUV (length);	1865	UV len = SvUV (length);
…		…
1438	REQ_SEND;	1884	REQ_SEND;
1439	}	1885	}
1440	}	1886	}
1441		1887
1442	void	1888	void
1443	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1889	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1444	PPCODE:	1890	PPCODE:
1445	{	1891	{
1446	dREQ;	1892	dREQ;
1447		1893
1448	req->type = EIO_MLOCKALL;	1894	req->type = EIO_MLOCKALL;
…		…
1450		1896
1451	REQ_SEND;	1897	REQ_SEND;
1452	}	1898	}
1453		1899
1454	void	1900	void
		1901	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1902	PPCODE:
		1903	{
		1904	int fd = s_fileno_croak (fh, 0);
		1905	dREQ;
		1906
		1907	req->type = EIO_CUSTOM;
		1908	req->sv1 = newSVsv (fh);
		1909	req->int1 = fd;
		1910
		1911	req->feed = fiemap;
		1912	#if HAVE_FIEMAP
		1913	/* keep our fingers crossed that the next two types are 64 bit */
		1914	req->offs = start;
		1915	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1916	req->int2 = flags;
		1917	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1918	#endif
		1919
		1920	REQ_SEND;
		1921	}
		1922
		1923	void
		1924	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1925	PPCODE:
		1926	{
		1927	char *svptr = 0;
		1928
		1929	sv_clear_foreign (data);
		1930
		1931	if (length) /* known length, directly read into scalar */
		1932	{
		1933	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1934	svptr = sv_grow (data, length + 1);
		1935	else if (SvCUR (data) < length)
		1936	croak ("length outside of scalar, and cannot grow");
		1937	else
		1938	svptr = SvPVbyte_nolen (data);
		1939	}
		1940
		1941	{
		1942	dREQ;
		1943
		1944	req->type = EIO_SLURP;
		1945	req_set_path1 (req, pathname);
		1946	req->offs = offset;
		1947	req->size = length;
		1948	req->sv2 = SvREFCNT_inc (data);
		1949	req->ptr2 = svptr;
		1950
		1951	if (!SvREADONLY (data))
		1952	{
		1953	SvREADONLY_on (data);
		1954	req->flags |= FLAG_SV2_RO_OFF;
		1955	}
		1956
		1957	REQ_SEND;
		1958	}
		1959	}
		1960
		1961	void
1455	aio_busy (double delay, SV *callback=&PL_sv_undef)	1962	aio_busy (double delay, SV *callback = &PL_sv_undef)
1456	PPCODE:	1963	PPCODE:
1457	{	1964	{
1458	dREQ;	1965	dREQ;
1459		1966
1460	req->type = EIO_BUSY;	1967	req->type = EIO_BUSY;
…		…
1462		1969
1463	REQ_SEND;	1970	REQ_SEND;
1464	}	1971	}
1465		1972
1466	void	1973	void
1467	aio_group (SV *callback=&PL_sv_undef)	1974	aio_group (SV *callback = &PL_sv_undef)
1468	PPCODE:	1975	PPCODE:
1469	{	1976	{
1470	dREQ;	1977	dREQ;
1471		1978
1472	req->type = EIO_GROUP;	1979	req->type = EIO_GROUP;
1473		1980
		1981	PUTBACK;
1474	req_submit (req);	1982	req_submit (req);
		1983	SPAGAIN;
		1984
1475	XPUSHs (req_sv (req, aio_grp_stash));	1985	XPUSHs (req_sv (req, aio_grp_stash));
1476	}	1986	}
1477		1987
1478	void	1988	void
1479	aio_nop (SV *callback=&PL_sv_undef)	1989	aio_nop (SV *callback = &PL_sv_undef)
1480	ALIAS:	1990	ALIAS:
1481	aio_nop = EIO_NOP	1991	aio_nop = EIO_NOP
1482	aio_sync = EIO_SYNC	1992	aio_sync = EIO_SYNC
1483	PPCODE:	1993	PPCODE:
1484	{	1994	{
…		…
1488		1998
1489	REQ_SEND;	1999	REQ_SEND;
1490	}	2000	}
1491		2001
1492	int	2002	int
1493	aioreq_pri (int pri = 0)	2003	aioreq_pri (int pri = NO_INIT)
1494	CODE:	2004	CODE:
1495	RETVAL = next_pri;	2005	RETVAL = next_pri;
1496	if (items > 0)	2006	if (items > 0)
1497	{	2007	{
1498	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2008	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1580	CODE:	2090	CODE:
1581	RETVAL = posix_fadvise (fh, offset, length, advice);	2091	RETVAL = posix_fadvise (fh, offset, length, advice);
1582	OUTPUT:	2092	OUTPUT:
1583	RETVAL	2093	RETVAL
1584		2094
1585	ssize_t	2095	IV
1586	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2096	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1587	CODE:	2097	CODE:
1588	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2098	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1589	OUTPUT:	2099	OUTPUT:
1590	RETVAL	2100	RETVAL
1591		2101
1592	void	2102	void
1593	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2103	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1594	PPCODE:	2104	PPCODE:
1595	sv_unmagic (scalar, MMAP_MAGIC);	2105	sv_clear_foreign (scalar);
1596	{	2106	{
1597	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2107	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1598	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2108	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1599	if (addr == (void *)-1)	2109	if (addr == (void *)-1)
1600	XSRETURN_NO;	2110	XSRETURN_NO;
1601		2111
1602	sv_force_normal (scalar);	2112	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1603
1604	/* we store the length in mg_obj, as namlen is I32 :/ */
1605	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1606	->mg_obj = (SV *)length;
1607
1608	SvUPGRADE (scalar, SVt_PV); /* nop... */
1609		2113
1610	if (!(prot & PROT_WRITE))	2114	if (!(prot & PROT_WRITE))
1611	SvREADONLY_on (scalar);	2115	SvREADONLY_on (scalar);
1612		2116
1613	if (SvLEN (scalar))
1614	Safefree (SvPVX (scalar));
1615
1616	SvPVX (scalar) = (char *)addr;
1617	SvCUR_set (scalar, length);
1618	SvLEN_set (scalar, 0);
1619	SvPOK_only (scalar);
1620
1621	XSRETURN_YES;	2117	XSRETURN_YES;
1622	}	2118	}
1623		2119
1624	void	2120	void
1625	munmap (SV *scalar)	2121	munmap (SV *scalar)
1626	CODE:	2122	CODE:
1627	sv_unmagic (scalar, MMAP_MAGIC);	2123	sv_clear_foreign (scalar);
		2124
		2125	SV *
		2126	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2127	CODE:
		2128	{
		2129	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2130	void *new;
		2131
		2132	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2133	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2134
		2135	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2136
		2137	RETVAL = &PL_sv_no;
		2138
		2139	if (new != (void *)-1)
		2140	{
		2141	RETVAL = new == (void *)mg->mg_ptr
		2142	? newSVpvn ("0 but true", 10)
		2143	: &PL_sv_yes;
		2144
		2145	mg->mg_ptr = (char *)new;
		2146	mg->mg_obj = (SV *)new_length;
		2147
		2148	SvPVX (scalar) = mg->mg_ptr;
		2149	SvCUR_set (scalar, new_length);
		2150	}
		2151	}
		2152	OUTPUT:
		2153	RETVAL
1628		2154
1629	int	2155	int
1630	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2156	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1631	ALIAS:	2157	ALIAS:
1632	mprotect = 1	2158	mprotect = 1
1633	CODE:	2159	CODE:
1634	{	2160	{
1635	STRLEN svlen;	2161	STRLEN svlen;
1636	void *addr = SvPVbyte (scalar, svlen);	2162	void *addr = SvPVbyte (scalar, svlen);
1637	size_t len = SvUV (length);	2163	STRLEN len = SvUV (length);
1638		2164
1639	if (offset < 0)	2165	if (offset < 0)
1640	offset += svlen;	2166	offset += svlen;
1641		2167
1642	if (offset < 0 || offset > svlen)	2168	if (offset < 0 || offset > svlen)
…		…
1656	}	2182	}
1657	OUTPUT:	2183	OUTPUT:
1658	RETVAL	2184	RETVAL
1659		2185
1660	int	2186	int
1661	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2187	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1662	CODE:	2188	CODE:
1663	{	2189	{
1664	STRLEN svlen;	2190	STRLEN svlen;
1665	void *addr = SvPVbyte (scalar, svlen);	2191	void *addr = SvPVbyte (scalar, svlen);
1666	size_t len = SvUV (length);	2192	size_t len = SvUV (length);
1667		2193
1668	if (offset < 0)	2194	if (offset < 0)
1669	offset += svlen;	2195	offset += svlen;
1670		2196
…		…
1677	addr = (void *)(((intptr_t)addr) + offset);	2203	addr = (void *)(((intptr_t)addr) + offset);
1678	eio_page_align (&addr, &len);	2204	eio_page_align (&addr, &len);
1679	#if _POSIX_MEMLOCK_RANGE	2205	#if _POSIX_MEMLOCK_RANGE
1680	RETVAL = munlock (addr, len);	2206	RETVAL = munlock (addr, len);
1681	#else	2207	#else
1682	RETVAL = ((errno = ENOSYS), -1);	2208	RETVAL = EIO_ENOSYS ();
1683	#endif	2209	#endif
1684	}	2210	}
1685	OUTPUT:	2211	OUTPUT:
1686	RETVAL	2212	RETVAL
1687		2213
…		…
1689	munlockall ()	2215	munlockall ()
1690	CODE:	2216	CODE:
1691	#if _POSIX_MEMLOCK	2217	#if _POSIX_MEMLOCK
1692	munlockall ();	2218	munlockall ();
1693	#else	2219	#else
1694	RETVAL = -1;	2220	RETVAL = EIO_ENOSYS ();
1695	errno = ENOSYS;
1696	#endif	2221	#endif
1697	OUTPUT:	2222	OUTPUT:
1698	RETVAL	2223	RETVAL
		2224
		2225	int
		2226	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2227	CODE:
		2228	{
		2229	#if HAVE_LINUX_SPLICE
		2230	loff_t off_in_, off_out_;
		2231	RETVAL = splice (
		2232	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2233	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2234	length, flags
		2235	);
		2236	#else
		2237	RETVAL = EIO_ENOSYS ();
		2238	#endif
		2239	}
		2240	OUTPUT:
		2241	RETVAL
		2242
		2243	int
		2244	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2245	CODE:
		2246	#if HAVE_LINUX_SPLICE
		2247	RETVAL = tee (rfh, wfh, length, flags);
		2248	#else
		2249	RETVAL = EIO_ENOSYS ();
		2250	#endif
		2251	OUTPUT:
		2252	RETVAL
		2253
		2254	int
		2255	pipesize (aio_rfd rfh, int new_size = -1)
		2256	PROTOTYPE: $;$
		2257	CODE:
		2258	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2259	if (new_size >= 0)
		2260	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2261	else
		2262	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2263	#else
		2264	errno = ENOSYS;
		2265	RETVAL = -1;
		2266	#endif
		2267	OUTPUT:
		2268	RETVAL
		2269
		2270	void
		2271	pipe2 (int flags = 0)
		2272	PROTOTYPE: ;$
		2273	PPCODE:
		2274	{
		2275	int fd[2];
		2276	int res;
		2277
		2278	if (flags)
		2279	#if HAVE_PIPE2
		2280	res = pipe2 (fd, flags);
		2281	#else
		2282	res = (errno = ENOSYS, -1);
		2283	#endif
		2284	else
		2285	res = pipe (fd);
		2286
		2287	if (!res)
		2288	{
		2289	EXTEND (SP, 2);
		2290	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2291	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2292	}
		2293	}
		2294
		2295	void
		2296	eventfd (unsigned int initval = 0, int flags = 0)
		2297	PPCODE:
		2298	{
		2299	int fd;
		2300	#if HAVE_EVENTFD
		2301	fd = eventfd (initval, flags);
		2302	#else
		2303	fd = (errno = ENOSYS, -1);
		2304	#endif
		2305
		2306	XPUSHs (newmortalFH (fd, O_RDWR));
		2307	}
		2308
		2309	void
		2310	timerfd_create (int clockid, int flags = 0)
		2311	PPCODE:
		2312	{
		2313	int fd;
		2314	#if HAVE_TIMERFD
		2315	fd = timerfd_create (clockid, flags);
		2316	#else
		2317	fd = (errno = ENOSYS, -1);
		2318	#endif
		2319
		2320	XPUSHs (newmortalFH (fd, O_RDWR));
		2321	}
		2322
		2323	void
		2324	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2325	PPCODE:
		2326	{
		2327	int fd = s_fileno_croak (fh, 0);
		2328	#if HAVE_TIMERFD
		2329	int res;
		2330	struct itimerspec its, ots;
		2331
		2332	ts_set (&its.it_interval, interval);
		2333	ts_set (&its.it_value , value);
		2334	res = timerfd_settime (fd, flags, &its, &ots);
		2335
		2336	if (!res)
		2337	{
		2338	EXTEND (SP, 2);
		2339	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2340	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2341	}
		2342	#else
		2343	errno = ENOSYS;
		2344	#endif
		2345	}
		2346
		2347	void
		2348	timerfd_gettime (SV *fh)
		2349	PPCODE:
		2350	{
		2351	int fd = s_fileno_croak (fh, 0);
		2352	#if HAVE_TIMERFD
		2353	int res;
		2354	struct itimerspec ots;
		2355	res = timerfd_gettime (fd, &ots);
		2356
		2357	if (!res)
		2358	{
		2359	EXTEND (SP, 2);
		2360	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2361	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2362	}
		2363	#else
		2364	errno = ENOSYS;
		2365	#endif
		2366	}
		2367
		2368	UV
		2369	get_fdlimit ()
		2370	CODE:
		2371	#if HAVE_RLIMITS
		2372	struct rlimit rl;
		2373	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2374	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2375	#endif
		2376	XSRETURN_UNDEF;
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	void
		2381	min_fdlimit (UV limit = 0x7fffffffU)
		2382	CODE:
		2383	{
		2384	#if HAVE_RLIMITS
		2385	struct rlimit rl;
		2386	rlim_t orig_rlim_max;
		2387	UV bit;
		2388
		2389	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2390	goto fail;
		2391
		2392	if (rl.rlim_cur == RLIM_INFINITY)
		2393	XSRETURN_YES;
		2394
		2395	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2396
		2397	if (rl.rlim_cur < limit)
		2398	{
		2399	rl.rlim_cur = limit;
		2400
		2401	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2402	rl.rlim_max = rl.rlim_cur;
		2403	}
		2404
		2405	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2406	XSRETURN_YES;
		2407
		2408	if (errno == EPERM)
		2409	{
		2410	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2411	/* our limit overflows a system-wide limit */
		2412	/* try an adaptive algorithm, but do not lower the hardlimit */
		2413	rl.rlim_max = 0;
		2414	for (bit = 0x40000000U; bit; bit >>= 1)
		2415	{
		2416	rl.rlim_max |= bit;
		2417	rl.rlim_cur = rl.rlim_max;
		2418
		2419	/* nevr decrease the hard limit */
		2420	if (rl.rlim_max < orig_rlim_max)
		2421	break;
		2422
		2423	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2424	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2425	}
		2426
		2427	/* now, raise the soft limit to the max permitted */
		2428	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2429	{
		2430	rl.rlim_cur = rl.rlim_max;
		2431	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2432	errno = EPERM;
		2433	}
		2434	}
		2435	#endif
		2436	fail:
		2437	XSRETURN_UNDEF;
		2438	}
1699		2439
1700	void _on_next_submit (SV *cb)	2440	void _on_next_submit (SV *cb)
1701	CODE:	2441	CODE:
1702	SvREFCNT_dec (on_next_submit);	2442	SvREFCNT_dec (on_next_submit);
1703	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2443	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1704		2444
1705	PROTOTYPES: DISABLE	2445	PROTOTYPES: DISABLE
1706		2446
		2447	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2448
		2449	BOOT:
		2450	{
		2451	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2452	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2453	}
		2454
		2455	void
		2456	DESTROY (SV *self)
		2457	CODE:
		2458	{
		2459	aio_wd wd = SvAIO_WD (self);
		2460	#if HAVE_AT
		2461	{
		2462	SV *callback = &PL_sv_undef;
		2463	dREQ; /* clobbers next_pri :/ */
		2464	next_pri = req->pri; /* restore next_pri */
		2465	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2466	req->type = EIO_WD_CLOSE;
		2467	req->wd = wd;
		2468	REQ_SEND;
		2469	}
		2470	#else
		2471	eio_wd_close_sync (wd);
		2472	#endif
		2473	}
		2474
1707	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2475	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1708		2476
1709	void	2477	void
1710	cancel (aio_req_ornot req)	2478	cancel (aio_req_ornot req)
1711	CODE:	2479	CODE:
1712	eio_cancel (req);	2480	eio_cancel (req);
1713		2481
1714	void	2482	void
1715	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2483	cb (aio_req_ornot req, SV *callback = NO_INIT)
1716	PPCODE:	2484	PPCODE:
1717	{	2485	{
1718	if (GIMME_V != G_VOID)	2486	if (GIMME_V != G_VOID)
1719	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2487	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1720		2488
1721	if (items > 1)	2489	if (items > 1)
1722	{	2490	{
1723	SV *cb_cv =get_cb (callback);	2491	SV *cb_cv = get_cb (callback);
1724		2492
1725	SvREFCNT_dec (req->callback);	2493	SvREFCNT_dec (req->callback);
1726	req->callback = SvREFCNT_inc (cb_cv);	2494	req->callback = SvREFCNT_inc (cb_cv);
1727	}	2495	}
1728	}	2496	}
…		…
1785	limit (aio_req grp, int limit)	2553	limit (aio_req grp, int limit)
1786	CODE:	2554	CODE:
1787	eio_grp_limit (grp, limit);	2555	eio_grp_limit (grp, limit);
1788		2556
1789	void	2557	void
1790	feed (aio_req grp, SV *callback=&PL_sv_undef)	2558	feed (aio_req grp, SV *callback = &PL_sv_undef)
1791	CODE:	2559	CODE:
1792	{	2560	{
1793	SvREFCNT_dec (grp->sv2);	2561	SvREFCNT_dec (grp->sv2);
1794	grp->sv2 = newSVsv (callback);	2562	grp->sv2 = newSVsv (callback);
1795	grp->feed = aio_grp_feed;	2563	grp->feed = aio_grp_feed;

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