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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.187 by root, Sat Jul 16 16:46:10 2011 UTC vs.
Revision 1.262 by root, Sun Aug 12 05:21:35 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 <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	23	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	24	# include <sys/mman.h>
		25	#endif
		26
		27	/* the incompetent fool that created musl keeps __linux__, refuses
		28	* to implement any linux standard apis, and also has no way to test
		29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
		31	*/
		32	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		33	# include <linux/fs.h>
		34	# ifdef FS_IOC_FIEMAP
		35	# include <linux/types.h>
		36	# include <linux/fiemap.h>
		37	# define HAVE_FIEMAP 1
		38	# endif
22	#endif	39	#endif
23		40
24	/* perl namespace pollution */	41	/* perl namespace pollution */
25	#undef VERSION	42	#undef VERSION
26		43
…		…
30	#undef opendir	47	#undef opendir
31	#undef closedir	48	#undef closedir
32		49
33	#ifdef _WIN32	50	#ifdef _WIN32
34		51
35	# define EIO_STRUCT_DIRENT Direntry_t
36	# undef malloc
37	# undef free
38
39	// perl overrides all those nice win32 functions	52	// perl overrides all those nice libc functions
		53
		54	#undef malloc
		55	#undef free
40	# undef open	56	#undef open
41	# undef read	57	#undef read
42	# undef write	58	#undef write
43	# undef send	59	#undef send
44	# undef recv	60	#undef recv
		61	#undef stat
45	# undef lstat	62	#undef lstat
		63	#undef fstat
46	# undef truncate	64	#undef truncate
47	# undef ftruncate	65	#undef ftruncate
48	# undef open	66	#undef open
49	# undef link	67	#undef link
50	# undef close	68	#undef close
51	# undef unlink	69	#undef unlink
52	# undef mkdir	70	#undef mkdir
53	# undef rmdir	71	#undef rmdir
54	# undef rename	72	#undef rename
55	# undef lseek	73	#undef lseek
56	# undef opendir	74	#undef opendir
57	# undef readdir	75	#undef readdir
58	# undef closedir	76	#undef closedir
59	# undef chmod	77	#undef chmod
60	# undef fchmod	78	#undef fchmod
		79	#undef dup
		80	#undef dup2
		81	#undef abort
		82	#undef pipe
61		83
62	# define opendir(fd) EIO_ERRNO (ENOSYS, 0)	84	#define EIO_STRUCT_STAT struct _stati64
63	# define readdir(fd) EIO_ENOSYS ()	85	#define EIO_STRUCT_STATI64
64	# define closedir(fd) EIO_ENOSYS ()
65		86
66	#else	87	#else
67		88
68	# include <sys/time.h>	89	#include <sys/time.h>
69	# include <sys/select.h>	90	#include <sys/select.h>
70	# include <unistd.h>	91	#include <unistd.h>
71	# include <utime.h>	92	#include <utime.h>
72	# include <signal.h>	93	#include <signal.h>
73		94
74	#endif
75
76	#define EIO_STRUCT_STAT Stat_t	95	#define EIO_STRUCT_STAT Stat_t
77		96
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define VAL64 IV
81	# define SvVAL64 SvIV
82	# define newSVval64 newSViv
83	#else
84	# define VAL64 NV
85	# define SvVAL64 SvNV
86	# define newSVval64 newSVnv
87	#endif	97	#endif
88		98
89	/*****************************************************************************/	99	/*****************************************************************************/
90		100
91	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
99		109
100	/*****************************************************************************/	110	/*****************************************************************************/
101		111
		112	#include "config.h"
		113
		114	#if HAVE_ST_XTIMENSEC
		115	# define ATIMENSEC PL_statcache.st_atimensec
		116	# define MTIMENSEC PL_statcache.st_mtimensec
		117	# define CTIMENSEC PL_statcache.st_ctimensec
		118	#elif HAVE_ST_XTIMESPEC
		119	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		120	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		121	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		122	#else
		123	# define ATIMENSEC 0
		124	# define MTIMENSEC 0
		125	# define CTIMENSEC 0
		126	#endif
		127
		128	#include "schmorp.h"
		129
		130	#if HAVE_EVENTFD
		131	# include <sys/eventfd.h>
		132	#endif
		133
		134	#if HAVE_TIMERFD
		135	# include <sys/timerfd.h>
		136	#endif
		137
		138	#if HAVE_RLIMITS
		139	#include <sys/time.h>
		140	#include <sys/resource.h>
		141	#endif
		142
102	typedef SV SV8; /* byte-sv, used for argument-checking */	143	typedef SV SV8; /* byte-sv, used for argument-checking */
103	typedef int aio_rfd; /* read file desriptor */	144	typedef int aio_rfd; /* read file desriptor */
104	typedef int aio_wfd; /* write file descriptor */	145	typedef int aio_wfd; /* write file descriptor */
105		146
106	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	147	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
107		148
108	#define EIO_REQ_MEMBERS \	149	#define EIO_REQ_MEMBERS \
109	SV *callback; \	150	SV *callback; \
110	SV *sv1, *sv2; \	151	SV *sv1, *sv2; \
		152	SV *sv3, *sv4; \
111	STRLEN stroffset; \	153	STRLEN stroffset; \
112	SV *self;	154	SV *self;
113		155
114	#define EIO_NO_WRAPPERS 1	156	#define EIO_NO_WRAPPERS 1
115		157
116	#include "libeio/config.h"
117	#include "libeio/eio.h"	158	#include "libeio/eio.h"
118		159
119	/* Linux/others */	160	static int req_invoke (eio_req *req);
120	#ifndef O_ASYNC	161	#define EIO_FINISH(req) req_invoke (req)
121	# define O_ASYNC 0	162	static void req_destroy (eio_req *grp);
122	#endif	163	#define EIO_DESTROY(req) req_destroy (req)
123	#ifndef O_DIRECT
124	# define O_DIRECT 0
125	#endif
126	#ifndef O_NOATIME
127	# define O_NOATIME 0
128	#endif
129		164
130	/* POSIX */	165	#include "libeio/eio.c"
131	#ifndef O_CLOEXEC
132	# define O_CLOEXEC 0
133	#endif
134	#ifndef O_NOFOLLOW
135	# define O_NOFOLLOW 0
136	#endif
137	#ifndef O_NOCTTY
138	# define O_NOCTTY 0
139	#endif
140	#ifndef O_NONBLOCK
141	# define O_NONBLOCK 0
142	#endif
143	#ifndef O_EXEC
144	# define O_EXEC 0
145	#endif
146	#ifndef O_SEARCH
147	# define O_SEARCH 0
148	#endif
149	#ifndef O_DIRECTORY
150	# define O_DIRECTORY 0
151	#endif
152	#ifndef O_DSYNC
153	# define O_DSYNC 0
154	#endif
155	#ifndef O_RSYNC
156	# define O_RSYNC 0
157	#endif
158	#ifndef O_SYNC
159	# define O_SYNC 0
160	#endif
161	#ifndef O_TTY_INIT
162	# define O_TTY_INIT 0
163	#endif
164
165	#ifndef POSIX_FADV_NORMAL
166	# define POSIX_FADV_NORMAL 0
167	#endif
168	#ifndef POSIX_FADV_SEQUENTIAL
169	# define POSIX_FADV_SEQUENTIAL 0
170	#endif
171	#ifndef POSIX_FADV_RANDOM
172	# define POSIX_FADV_RANDOM 0
173	#endif
174	#ifndef POSIX_FADV_NOREUSE
175	# define POSIX_FADV_NOREUSE 0
176	#endif
177	#ifndef POSIX_FADV_WILLNEED
178	# define POSIX_FADV_WILLNEED 0
179	#endif
180	#ifndef POSIX_FADV_DONTNEED
181	# define POSIX_FADV_DONTNEED 0
182	#endif
183		166
184	#if !HAVE_POSIX_FADVISE	167	#if !HAVE_POSIX_FADVISE
185	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	168	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
186	#endif	169	#endif
187		170
188	#ifndef POSIX_MADV_NORMAL
189	# define POSIX_MADV_NORMAL 0
190	#endif
191	#ifndef POSIX_MADV_SEQUENTIAL
192	# define POSIX_MADV_SEQUENTIAL 0
193	#endif
194	#ifndef POSIX_MADV_RANDOM
195	# define POSIX_MADV_RANDOM 0
196	#endif
197	#ifndef POSIX_MADV_WILLNEED
198	# define POSIX_MADV_WILLNEED 0
199	#endif
200	#ifndef POSIX_MADV_DONTNEED
201	# define POSIX_MADV_DONTNEED 0
202	#endif
203
204	#if !HAVE_POSIX_MADVISE	171	#if !HAVE_POSIX_MADVISE
205	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	172	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
206	#endif
207
208	#ifndef PROT_NONE
209	# define PROT_NONE 0
210	#endif
211	#ifndef PROT_READ
212	# define PROT_READ 0
213	#endif
214	#ifndef PROT_WRITE
215	# define PROT_READ 0
216	#endif
217	#ifndef PROT_EXEC
218	# define PROT_EXEC 0
219	#endif
220
221	#ifndef ST_RDONLY
222	# define ST_RDONLY 0
223	#endif
224	#ifndef ST_NOSUID
225	# define ST_NOSUID 0
226	#endif
227	#ifndef ST_NODEV
228	# define ST_NODEV 0
229	#endif
230	#ifndef ST_NOEXEC
231	# define ST_NOEXEC 0
232	#endif
233	#ifndef ST_SYNCHRONOUS
234	# define ST_SYNCHRONOUS 0
235	#endif
236	#ifndef ST_MANDLOCK
237	# define ST_MANDLOCK 0
238	#endif
239	#ifndef ST_WRITE
240	# define ST_WRITE 0
241	#endif
242	#ifndef ST_APPEND
243	# define ST_APPEND 0
244	#endif
245	#ifndef ST_IMMUTABLE
246	# define ST_IMMUTABLE 0
247	#endif
248	#ifndef ST_NOATIME
249	# define ST_NOATIME 0
250	#endif
251	#ifndef ST_NODIRATIME
252	# define ST_NODIRATIME 0
253	#endif
254	#ifndef ST_RELATIME
255	# define ST_RELATIME 0
256	#endif
257
258	#ifndef S_IFIFO
259	# define S_IFIFO 0
260	#endif
261	#ifndef S_IFCHR
262	# define S_IFCHR 0
263	#endif
264	#ifndef S_IFBLK
265	# define S_IFBLK 0
266	#endif
267	#ifndef S_IFLNK
268	# define S_IFLNK 0
269	#endif
270	#ifndef S_IFREG
271	# define S_IFREG 0
272	#endif
273	#ifndef S_IFDIR
274	# define S_IFDIR 0
275	#endif
276	#ifndef S_IFWHT
277	# define S_IFWHT 0
278	#endif
279	#ifndef S_IFSOCK
280	# define S_IFSOCK 0
281	#endif	173	#endif
282		174
283	#ifndef MAP_ANONYMOUS	175	#ifndef MAP_ANONYMOUS
284	# ifdef MAP_ANON	176	# ifdef MAP_ANON
285	# define MAP_ANONYMOUS MAP_ANON	177	# define MAP_ANONYMOUS MAP_ANON
286	# else	178	# else
287	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	179	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
288	# endif	180	# endif
289	#endif	181	#endif
290	#ifndef MAP_HUGETLB
291	# define MAP_HUGETLB 0
292	#endif
293	#ifndef MAP_LOCKED
294	# define MAP_LOCKED 0
295	#endif
296	#ifndef MAP_NORESERVE
297	# define MAP_NORESERVE 0
298	#endif
299	#ifndef MAP_POPULATE
300	# define MAP_POPULATE 0
301	#endif
302	#ifndef MAP_NONBLOCK
303	# define MAP_NONBLOCK 0
304	#endif
305		182
306	#ifndef makedev	183	#ifndef makedev
307	# define makedev(maj,min) (((maj) << 8) | (min))	184	# define makedev(maj,min) (((maj) << 8) | (min))
308	#endif	185	#endif
309	#ifndef major	186	#ifndef major
…		…
311	#endif	188	#endif
312	#ifndef minor	189	#ifndef minor
313	# define minor(dev) ((dev) & 0xff)	190	# define minor(dev) ((dev) & 0xff)
314	#endif	191	#endif
315		192
316	#ifndef PAGESIZE	193	#if PAGESIZE <= 0
317	# define PAGESIZE sysconf (_SC_PAGESIZE)	194	# define PAGESIZE sysconf (_SC_PAGESIZE)
318	#endif	195	#endif
319		196
320	static int req_invoke (eio_req *req);	197	/*****************************************************************************/
321	#define EIO_FINISH(req) req_invoke (req)	198
322	static void req_destroy (eio_req *grp);	199	#if !_POSIX_MAPPED_FILES
323	#define EIO_DESTROY(req) req_destroy (req)	200	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		201	# define munmap(addr,length) EIO_ENOSYS ()
		202	#endif
		203
		204	#if !_POSIX_MEMORY_PROTECTION
		205	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !MREMAP_MAYMOVE
		209	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		210	#endif
		211
		212	#define FOREIGN_MAGIC PERL_MAGIC_ext
		213
		214	static int ecb_cold
		215	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		216	{
		217	int old_errno = errno;
		218	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		219	errno = old_errno;
		220
		221	mg->mg_obj = 0; /* just in case */
		222
		223	SvREADONLY_off (sv);
		224
		225	if (SvPVX (sv) != mg->mg_ptr)
		226	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		227
		228	SvCUR_set (sv, 0);
		229	SvPVX (sv) = 0;
		230	SvOK_off (sv);
		231
		232	return 0;
		233	}
		234
		235	static MGVTBL mmap_vtbl = {
		236	0, 0, 0, 0, mmap_free
		237	};
		238
		239	static int ecb_cold
		240	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		241	{
		242	free (mg->mg_ptr);
		243	mg->mg_obj = 0; /* just in case */
		244
		245	SvREADONLY_off (sv);
		246
		247	if (SvPVX (sv) != mg->mg_ptr)
		248	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		249
		250	SvCUR_set (sv, 0);
		251	SvPVX (sv) = 0;
		252	SvOK_off (sv);
		253
		254	return 0;
		255	}
		256
		257	static MGVTBL sysfree_vtbl = {
		258	0, 0, 0, 0, sysfree_free
		259	};
		260
		261	/*****************************************************************************/
		262
		263	/* helper: set scalar to foreign ptr with custom free */
		264	static void
		265	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		266	{
		267	sv_force_normal (sv);
		268
		269	/* we store the length in mg_obj, as namlen is I32 :/ */
		270	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		271	->mg_obj = (SV *)length;
		272
		273	SvUPGRADE (sv, SVt_PV); /* nop... */
		274
		275	if (SvLEN (sv))
		276	Safefree (SvPVX (sv));
		277
		278	SvPVX (sv) = (char *)addr;
		279	SvCUR_set (sv, length);
		280	SvLEN_set (sv, 0);
		281	SvPOK_only (sv);
		282	}
		283
		284	static void
		285	sv_clear_foreign (SV *sv)
		286	{
		287	/* todo: iterate over magic and only free ours, but of course */
		288	/* the perl5porters will call that (correct) behaviour buggy */
		289	sv_unmagic (sv, FOREIGN_MAGIC);
		290	}
		291
		292	/*****************************************************************************/
		293
		294	/* defines all sorts of constants to 0 unless they are already defined */
		295	/* also provides const_iv_ and const_niv_ macros for them */
		296	#include "def0.h"
		297
		298	/*****************************************************************************/
		299
		300	static void
		301	fiemap (eio_req *req)
		302	{
		303	req->result = -1;
		304
		305	#if HAVE_FIEMAP
		306	/* assume some c99 */
		307	struct fiemap *fiemap = 0;
		308	size_t end_offset;
		309	int count = req->int3;
		310
		311	req->flags |= EIO_FLAG_PTR1_FREE;
		312
		313	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		314	/* increase in 3.5kb steps */
		315	if (count < 0)
		316	count = 8;
		317
		318	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		319	errno = ENOMEM;
		320	if (!fiemap)
		321	return;
		322
		323	req->ptr1 = fiemap;
		324
		325	fiemap->fm_start = req->offs;
		326	fiemap->fm_length = req->size;
		327	fiemap->fm_flags = req->int2;
		328	fiemap->fm_extent_count = count;
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		331	return;
		332
		333	if (req->int3 >= 0 /* not autosizing */
		334	|| !fiemap->fm_mapped_extents /* no more extents */
		335	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		336	goto done;
		337
		338	/* else we have to loop -
		339	* it would be tempting (actually I tried that first) to just query the
		340	* number of extents needed, but linux often feels like not returning all
		341	* extents, without telling us it left any out. this complicates
		342	* this quite a bit.
		343	*/
		344
		345	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		346
		347	for (;;)
		348	{
		349	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		350	char scratch[3072];
		351	struct fiemap *incmap = (struct fiemap *)scratch;
		352
		353	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		354	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		355	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		356	incmap->fm_flags = fiemap->fm_flags;
		357	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		360	return;
		361
		362	if (!incmap->fm_mapped_extents)
		363	goto done;
		364
		365	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		366	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		367	errno = ENOMEM;
		368	if (!fiemap)
		369	return;
		370
		371	req->ptr1 = fiemap;
		372
		373	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		374	{
		375	struct fiemap_extent *e = incmap->fm_extents + count;
		376
		377	if (e->fe_logical + e->fe_length >= end_offset)
		378	goto done;
		379
		380	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		381
		382	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		383	goto done;
		384
		385	}
		386	}
		387
		388	done:
		389	req->result = 0;
		390
		391	#else
		392	errno = ENOSYS;
		393	#endif
		394	}
		395
		396	/*****************************************************************************/
324		397
325	enum {	398	enum {
326	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	399	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
327	};	400	};
328		401
329	#include "libeio/eio.c"
330
331	typedef eio_req *aio_req;	402	typedef eio_req *aio_req;
332	typedef eio_req *aio_req_ornot;	403	typedef eio_req *aio_req_ornot;
		404	typedef eio_wd aio_wd;
333		405
334	static SV *on_next_submit;	406	static SV *on_next_submit;
335	static int next_pri = EIO_PRI_DEFAULT;	407	static int next_pri = EIO_PRI_DEFAULT;
336	static int max_outstanding;	408	static int max_outstanding;
337		409
338	static s_epipe respipe;	410	static s_epipe respipe;
339		411
340	static void req_destroy (aio_req req);	412	static void req_destroy (aio_req req);
341	static void req_cancel (aio_req req);	413	static void req_cancel (aio_req req);
342		414
343	static void want_poll (void)	415	static void
		416	want_poll (void)
344	{	417	{
345	/* write a dummy byte to the pipe so fh becomes ready */	418	/* write a dummy byte to the pipe so fh becomes ready */
346	s_epipe_signal (&respipe);	419	s_epipe_signal (&respipe);
347	}	420	}
348		421
349	static void done_poll (void)	422	static void
		423	done_poll (void)
350	{	424	{
351	/* read any signals sent by the worker threads */	425	/* read any signals sent by the worker threads */
352	s_epipe_drain (&respipe);	426	s_epipe_drain (&respipe);
353	}	427	}
354		428
355	/* must be called at most once */	429	/* must be called at most once */
		430	static SV *
356	static SV *req_sv (aio_req req, HV *stash)	431	req_sv (aio_req req, HV *stash)
357	{	432	{
358	if (!req->self)	433	if (!req->self)
359	{	434	{
360	req->self = (SV *)newHV ();	435	req->self = (SV *)newHV ();
361	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	436	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
362	}	437	}
363		438
364	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	439	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
365	}	440	}
366		441
367	static aio_req SvAIO_REQ (SV *sv)	442	static SV *
		443	newSVaio_wd (aio_wd wd)
		444	{
		445	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		446	}
		447
		448	static aio_req
		449	SvAIO_REQ (SV *sv)
368	{	450	{
369	MAGIC *mg;	451	MAGIC *mg;
370		452
371	if (!SvROK (sv)	453	if (!SvROK (sv)
		454	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
372	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	455	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
373	&& SvSTASH (SvRV (sv)) != aio_req_stash	456	&& SvSTASH (SvRV (sv)) != aio_req_stash
374	&& !sv_derived_from (sv, "IO::AIO::REQ")))	457	&& !sv_derived_from (sv, "IO::AIO::REQ")))
375	croak ("object of class IO::AIO::REQ expected");	458	croak ("object of class IO::AIO::REQ expected");
376		459
377	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	460	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
378		461
379	return mg ? (aio_req)mg->mg_ptr : 0;	462	return mg ? (aio_req)mg->mg_ptr : 0;
380	}	463	}
381		464
		465	static aio_wd
		466	SvAIO_WD (SV *sv)
		467	{
		468	if (!SvROK (sv)
		469	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		470	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		471	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		472
		473	return (aio_wd)(long)SvIVX (SvRV (sv));
		474	}
		475
		476	static SV *
		477	newmortalFH (int fd, int flags)
		478	{
		479	if (fd < 0)
		480	return &PL_sv_undef;
		481
		482	GV *gv = (GV *)sv_newmortal ();
		483	char sym[64];
		484	int symlen;
		485
		486	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		487	gv_init (gv, aio_stash, sym, symlen, 0);
		488
		489	symlen = snprintf (
		490	sym,
		491	sizeof (sym),
		492	"%s&=%d",
		493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		494	fd
		495	);
		496
		497	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		498	? (SV *)gv : &PL_sv_undef;
		499	}
		500
		501	static void
382	static void aio_grp_feed (aio_req grp)	502	aio_grp_feed (aio_req grp)
383	{	503	{
384	if (grp->sv2 && SvOK (grp->sv2))	504	if (grp->sv2 && SvOK (grp->sv2))
385	{	505	{
386	dSP;	506	dSP;
387		507
…		…
395	FREETMPS;	515	FREETMPS;
396	LEAVE;	516	LEAVE;
397	}	517	}
398	}	518	}
399		519
		520	static void
400	static void req_submit (eio_req *req)	521	req_submit (eio_req *req)
401	{	522	{
402	eio_submit (req);	523	eio_submit (req);
403		524
404	if (expect_false (on_next_submit))	525	if (expect_false (on_next_submit))
405	{	526	{
…		…
412	PUTBACK;	533	PUTBACK;
413	call_sv (cb, G_DISCARD | G_EVAL);	534	call_sv (cb, G_DISCARD | G_EVAL);
414	}	535	}
415	}	536	}
416		537
		538	static int
417	static int req_invoke (eio_req *req)	539	req_invoke (eio_req *req)
418	{	540	{
419	if (req->flags & FLAG_SV2_RO_OFF)	541	if (req->flags & FLAG_SV2_RO_OFF)
420	SvREADONLY_off (req->sv2);	542	SvREADONLY_off (req->sv2);
421		543
422	if (!EIO_CANCELLED (req) && req->callback)	544	if (!EIO_CANCELLED (req) && req->callback)
…		…
443	SvREADONLY_on (sv_result);	565	SvREADONLY_on (sv_result);
444	}	566	}
445		567
446	switch (req->type)	568	switch (req->type)
447	{	569	{
		570	case EIO_WD_OPEN:
		571	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		572	break;
		573
448	case EIO_READDIR:	574	case EIO_READDIR:
449	{	575	{
450	SV *rv = &PL_sv_undef;	576	SV *rv = &PL_sv_undef;
451		577
452	if (req->result >= 0)	578	if (req->result >= 0)
…		…
505	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	631	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
506	}	632	}
507	break;	633	break;
508		634
509	case EIO_OPEN:	635	case EIO_OPEN:
510	{	636	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
511	/* convert fd to fh */
512	SV *fh = &PL_sv_undef;
513
514	if (req->result >= 0)
515	{
516	GV *gv = (GV *)sv_newmortal ();
517	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
518	char sym [64];
519	int symlen;
520
521	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
522	gv_init (gv, aio_stash, sym, symlen, 0);
523
524	symlen = snprintf (
525	sym,
526	sizeof (sym),
527	"%s&=%d",
528	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
529	(int)req->result
530	);
531
532	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
533	fh = (SV *)gv;
534	}
535
536	PUSHs (fh);
537	}
538	break;	637	break;
539		638
540	case EIO_STATVFS:	639	case EIO_STATVFS:
541	case EIO_FSTATVFS:	640	case EIO_FSTATVFS:
542	{	641	{
…		…
545	#ifndef _WIN32	644	#ifndef _WIN32
546	if (req->result >= 0)	645	if (req->result >= 0)
547	{	646	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	647	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	648	HV *hv = newHV ();
		649	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		650	* chooses to make it a struct.
		651	*/
		652	unsigned long fsid = 0;
		653	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		654
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	655	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		656
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	657	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);	658	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);	660	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);	661	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);	662	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);	663	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);	664	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);	665	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	666	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);	667	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	668	}
565	#endif	669	#endif
566		670
…		…
594	break;	698	break;
595		699
596	case EIO_STAT:	700	case EIO_STAT:
597	case EIO_LSTAT:	701	case EIO_LSTAT:
598	case EIO_FSTAT:	702	case EIO_FSTAT:
599	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	703	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		704
600	PL_laststatval = req->result;	705	if (!(PL_laststatval = req->result))
		706	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
601	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	707	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		708
602	PUSHs (sv_result);	709	PUSHs (sv_result);
		710	break;
		711
		712	case EIO_SEEK:
		713	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
603	break;	714	break;
604		715
605	case EIO_READ:	716	case EIO_READ:
606	{	717	{
607	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	718	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
610	SvSETMAGIC (req->sv2);	721	SvSETMAGIC (req->sv2);
611	PUSHs (sv_result);	722	PUSHs (sv_result);
612	}	723	}
613	break;	724	break;
614		725
		726	case EIO_SLURP:
		727	{
		728	if (req->result >= 0)
		729	{
		730	/* if length was originally not known, we steal the malloc'ed memory */
		731	if (req->flags & EIO_FLAG_PTR2_FREE)
		732	{
		733	req->flags &= ~EIO_FLAG_PTR2_FREE;
		734	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		735	}
		736	else
		737	{
		738	SvCUR_set (req->sv2, req->result);
		739	*SvEND (req->sv2) = 0;
		740	SvPOK_only (req->sv2);
		741	}
		742
		743	SvSETMAGIC (req->sv2);
		744	}
		745
		746	PUSHs (sv_result);
		747	}
		748	break;
		749
		750	case EIO_CUSTOM:
		751	if (req->feed == fiemap)
		752	{
		753	#if HAVE_FIEMAP
		754	if (!req->result)
		755	{
		756	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		757
		758	if (fiemap->fm_extent_count)
		759	{
		760	AV *av = newAV ();
		761	int i;
		762
		763	while (fiemap->fm_mapped_extents)
		764	{
		765	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		766	AV *ext_av = newAV ();
		767
		768	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		769	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		770	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		771	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		772
		773	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		774	}
		775
		776	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		777	}
		778	else
		779	{
		780	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		781	PUSHs (sv_result);
		782	}
		783	}
		784	#endif
		785	}
		786	else
		787	PUSHs (sv_result);
		788	break;
		789
615	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	790	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
616	if (req->result > 0)	791	if (req->result > 0)
617	SvIV_set (sv_result, 0);	792	SvIV_set (sv_result, 0);
618	/* FALLTHROUGH */	793	/* FALLTHROUGH */
619		794
…		…
640	}	815	}
641		816
642	return !!SvTRUE (ERRSV);	817	return !!SvTRUE (ERRSV);
643	}	818	}
644		819
		820	static void
645	static void req_destroy (aio_req req)	821	req_destroy (aio_req req)
646	{	822	{
647	if (req->self)	823	if (req->self)
648	{	824	{
649	sv_unmagic (req->self, PERL_MAGIC_ext);	825	sv_unmagic (req->self, PERL_MAGIC_ext);
650	SvREFCNT_dec (req->self);	826	SvREFCNT_dec (req->self);
651	}	827	}
652		828
653	SvREFCNT_dec (req->sv1);	829	SvREFCNT_dec (req->sv1);
654	SvREFCNT_dec (req->sv2);	830	SvREFCNT_dec (req->sv2);
		831	SvREFCNT_dec (req->sv3);
		832	SvREFCNT_dec (req->sv4);
655	SvREFCNT_dec (req->callback);	833	SvREFCNT_dec (req->callback);
656		834
657	Safefree (req);	835	free (req);
658	}	836	}
659		837
		838	static void
660	static void req_cancel_subs (aio_req grp)	839	req_cancel_subs (aio_req grp)
661	{	840	{
662	aio_req sub;
663
664	if (grp->type != EIO_GROUP)	841	if (grp->type != EIO_GROUP)
665	return;	842	return;
666		843
667	SvREFCNT_dec (grp->sv2);	844	SvREFCNT_dec (grp->sv2);
668	grp->sv2 = 0;	845	grp->sv2 = 0;
669		846
670	eio_grp_cancel (grp);	847	eio_grp_cancel (grp);
671	}	848	}
672		849
		850	static void ecb_cold
673	static void create_respipe (void)	851	create_respipe (void)
674	{	852	{
675	if (s_epipe_renew (&respipe))	853	if (s_epipe_renew (&respipe))
676	croak ("IO::AIO: unable to initialize result pipe");	854	croak ("IO::AIO: unable to initialize result pipe");
677	}	855	}
678		856
679	static void poll_wait (void)	857	static void
		858	poll_wait (void)
680	{	859	{
681	while (eio_nreqs ())	860	while (eio_nreqs ())
682	{	861	{
683	int size;	862	int size;
684		863
685	X_LOCK (reslock);	864	X_LOCK (EIO_POOL->reslock);
686	size = res_queue.size;	865	size = EIO_POOL->res_queue.size;
687	X_UNLOCK (reslock);	866	X_UNLOCK (EIO_POOL->reslock);
688		867
689	if (size)	868	if (size)
690	return;	869	return;
691		870
692	etp_maybe_start_thread ();	871	etp_maybe_start_thread (EIO_POOL);
693		872
694	s_epipe_wait (&respipe);	873	s_epipe_wait (&respipe);
695	}	874	}
696	}	875	}
697		876
698	static int poll_cb (void)	877	static int
		878	poll_cb (void)
699	{	879	{
700	for (;;)	880	for (;;)
701	{	881	{
702	int res = eio_poll ();	882	int res = eio_poll ();
703		883
…		…
709		889
710	poll_wait ();	890	poll_wait ();
711	}	891	}
712	}	892	}
713		893
714	static void atfork_child (void)	894	static void ecb_cold
		895	reinit (void)
715	{	896	{
716	create_respipe ();	897	create_respipe ();
		898
		899	if (eio_init (want_poll, done_poll) < 0)
		900	croak ("IO::AIO: unable to initialise eio library");
717	}	901	}
718		902
719	/*****************************************************************************/	903	/*****************************************************************************/
720		904
721	#if !_POSIX_MAPPED_FILES	905	static SV *
722	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
723	# define munmap(addr,length) (errno = ENOSYS, -1)
724	#endif
725
726	#if !_POSIX_MEMORY_PROTECTION
727	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
728	# define PROT_NONE 0
729	# define PROT_WRITE 0
730	# define MAP_PRIVATE 0
731	# define MAP_SHARED 0
732	# define MAP_FIXED 0
733	#endif
734
735	#define MMAP_MAGIC PERL_MAGIC_ext
736
737	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
738	{
739	int old_errno = errno;
740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
741	errno = old_errno;
742
743	mg->mg_obj = 0; /* just in case */
744
745	SvREADONLY_off (sv);
746
747	if (SvPVX (sv) != mg->mg_ptr)
748	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
749
750	SvCUR_set (sv, 0);
751	SvPVX (sv) = 0;
752	SvOK_off (sv);
753
754	return 0;
755	}
756
757	static MGVTBL mmap_vtbl = {
758	0, 0, 0, 0, mmap_free
759	};
760
761	/*****************************************************************************/
762
763	static SV * get_cb (SV *cb_sv)	906	get_cb (SV *cb_sv)
764	{	907	{
765	SvGETMAGIC (cb_sv);	908	SvGETMAGIC (cb_sv);
766	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	909	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
767	}	910	}
768		911
		912	static aio_req ecb_noinline
		913	dreq (SV *callback)
		914	{
		915	SV *cb_cv;
		916	aio_req req;
		917	int req_pri = next_pri;
		918	next_pri = EIO_PRI_DEFAULT;
		919
		920	cb_cv = get_cb (callback);
		921
		922	req = calloc (sizeof (*req), 1);
		923	if (!req)
		924	croak ("out of memory during eio_req allocation");
		925
		926	req->callback = SvREFCNT_inc (cb_cv);
		927	req->pri = req_pri;
		928
		929	return req;
		930	}
		931
769	#define dREQ \	932	#define dREQ \
770	SV *cb_cv; \	933	aio_req req = dreq (callback); \
771	aio_req req; \
772	int req_pri = next_pri; \
773	next_pri = EIO_PRI_DEFAULT; \
774	\
775	cb_cv = get_cb (callback); \
776	\
777	Newz (0, req, 1, eio_req); \
778	if (!req) \
779	croak ("out of memory during eio_req allocation"); \
780	\
781	req->callback = SvREFCNT_inc (cb_cv); \
782	req->pri = req_pri
783		934
784	#define REQ_SEND \	935	#define REQ_SEND \
785	PUTBACK; \	936	PUTBACK; \
786	req_submit (req); \	937	req_submit (req); \
787	SPAGAIN; \	938	SPAGAIN; \
788	\	939	\
789	if (GIMME_V != G_VOID) \	940	if (GIMME_V != G_VOID) \
790	XPUSHs (req_sv (req, aio_req_stash));	941	XPUSHs (req_sv (req, aio_req_stash));
791		942
		943	ecb_inline void
		944	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		945	{
		946	if (expect_false (SvROK (path)))
		947	{
		948	SV *rv = SvRV (path);
		949	SV *wdob;
		950
		951	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		952	{
		953	path = AvARRAY (rv)[1];
		954	wdob = AvARRAY (rv)[0];
		955
		956	if (SvOK (wdob))
		957	{
		958	*wd = SvAIO_WD (wdob);
		959	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		960	}
		961	else
		962	*wd = EIO_INVALID_WD;
		963	}
		964	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		965	{
		966	*wd = (aio_wd)(long)SvIVX (rv);
		967	*wdsv = SvREFCNT_inc_NN (rv);
		968	*ptr = ".";
		969	return; /* path set to "." */
		970	}
		971	else
		972	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		973	}
		974
		975	*pathsv = newSVsv (path);
		976	*ptr = SvPVbyte_nolen (*pathsv);
		977	}
		978
		979	static void ecb_noinline
		980	req_set_path1 (aio_req req, SV *path)
		981	{
		982	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		983	}
		984
		985	static void ecb_noinline
		986	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		987	{
		988	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		989
		990	switch (SvTYPE (rv))
		991	{
		992	case SVt_PVIO:
		993	case SVt_PVLV:
		994	case SVt_PVGV:
		995	req->type = type_fh;
		996	req->sv1 = newSVsv (fh_or_path);
		997	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		998	break;
		999
		1000	default:
		1001	req->type = type_path;
		1002	req_set_path1 (req, fh_or_path);
		1003	break;
		1004	}
		1005	}
		1006
		1007	/*****************************************************************************/
		1008
		1009	static void
		1010	ts_set (struct timespec *ts, NV value)
		1011	{
		1012	ts->tv_sec = value;
		1013	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1014	}
		1015
		1016	static NV
		1017	ts_get (const struct timespec *ts)
		1018	{
		1019	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1020	}
		1021
		1022	/*****************************************************************************/
		1023
		1024	XS(boot_IO__AIO) ecb_cold;
		1025
792	MODULE = IO::AIO PACKAGE = IO::AIO	1026	MODULE = IO::AIO PACKAGE = IO::AIO
793		1027
794	PROTOTYPES: ENABLE	1028	PROTOTYPES: ENABLE
795		1029
796	BOOT:	1030	BOOT:
…		…
800	IV iv;	1034	IV iv;
801	} *civ, const_iv[] = {	1035	} *civ, const_iv[] = {
802	# define const_niv(name, value) { # name, (IV) value },	1036	# define const_niv(name, value) { # name, (IV) value },
803	# define const_iv(name) { # name, (IV) name },	1037	# define const_iv(name) { # name, (IV) name },
804	# define const_eio(name) { # name, (IV) EIO_ ## name },	1038	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1039
		1040	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1041	/* the first block can be undef if missing */
		1042	const_iv (ENOSYS)
805	const_iv (EXDEV)	1043	const_iv (EXDEV)
806	const_iv (ENOSYS)	1044	const_iv (EBADR)
		1045
		1046	/* for lseek */
		1047	const_iv (SEEK_DATA)
		1048	const_iv (SEEK_HOLE)
		1049
		1050	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1051	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1052	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1053	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1054	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1055	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1056
		1057	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1058	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1059	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1060	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1061	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1062
		1063	/* the second block will be 0 when missing */
		1064	const_iv (O_ACCMODE)
		1065
807	const_iv (O_RDONLY)	1066	const_iv (O_RDONLY)
808	const_iv (O_WRONLY)	1067	const_iv (O_WRONLY)
809	const_iv (O_RDWR)	1068	const_iv (O_RDWR)
810	const_iv (O_CREAT)	1069	const_iv (O_CREAT)
811	const_iv (O_TRUNC)	1070	const_iv (O_TRUNC)
…		…
824	const_iv (O_SEARCH)	1083	const_iv (O_SEARCH)
825	const_iv (O_DIRECTORY)	1084	const_iv (O_DIRECTORY)
826	const_iv (O_DSYNC)	1085	const_iv (O_DSYNC)
827	const_iv (O_RSYNC)	1086	const_iv (O_RSYNC)
828	const_iv (O_SYNC)	1087	const_iv (O_SYNC)
		1088	const_iv (O_PATH)
		1089	const_iv (O_TMPFILE)
829	const_iv (O_TTY_INIT)	1090	const_iv (O_TTY_INIT)
830		1091
831	const_iv (S_IFIFO)	1092	const_iv (S_IFIFO)
832	const_iv (S_IFCHR)	1093	const_iv (S_IFCHR)
833	const_iv (S_IFBLK)	1094	const_iv (S_IFBLK)
…		…
835	const_iv (S_IFREG)	1096	const_iv (S_IFREG)
836	const_iv (S_IFDIR)	1097	const_iv (S_IFDIR)
837	const_iv (S_IFWHT)	1098	const_iv (S_IFWHT)
838	const_iv (S_IFSOCK)	1099	const_iv (S_IFSOCK)
839	const_iv (S_IFMT)	1100	const_iv (S_IFMT)
840
841	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
842	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
843	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
844	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
845	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
846	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
847
848	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
849	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
850	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
851	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
852	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
853		1101
854	const_iv (ST_RDONLY)	1102	const_iv (ST_RDONLY)
855	const_iv (ST_NOSUID)	1103	const_iv (ST_NOSUID)
856	const_iv (ST_NODEV)	1104	const_iv (ST_NODEV)
857	const_iv (ST_NOEXEC)	1105	const_iv (ST_NOEXEC)
…		…
867	const_iv (PROT_NONE)	1115	const_iv (PROT_NONE)
868	const_iv (PROT_EXEC)	1116	const_iv (PROT_EXEC)
869	const_iv (PROT_READ)	1117	const_iv (PROT_READ)
870	const_iv (PROT_WRITE)	1118	const_iv (PROT_WRITE)
871		1119
872	/*const_iv (MAP_FIXED)*/
873	const_iv (MAP_PRIVATE)	1120	const_iv (MAP_PRIVATE)
874	const_iv (MAP_SHARED)	1121	const_iv (MAP_SHARED)
		1122	const_iv (MAP_FIXED)
875	const_iv (MAP_ANONYMOUS)	1123	const_iv (MAP_ANONYMOUS)
876		1124
877	/* linuxish */	1125	/* linuxish */
878	const_iv (MAP_HUGETLB)
879	const_iv (MAP_LOCKED)	1126	const_iv (MAP_LOCKED)
880	const_iv (MAP_NORESERVE)	1127	const_iv (MAP_NORESERVE)
881	const_iv (MAP_POPULATE)	1128	const_iv (MAP_POPULATE)
882	const_iv (MAP_NONBLOCK)	1129	const_iv (MAP_NONBLOCK)
		1130	const_iv (MAP_GROWSDOWN)
		1131	const_iv (MAP_32BIT)
		1132	const_iv (MAP_HUGETLB)
		1133	const_iv (MAP_STACK)
		1134
		1135	const_iv (MREMAP_MAYMOVE)
		1136	const_iv (MREMAP_FIXED)
		1137
		1138	const_iv (F_DUPFD_CLOEXEC)
		1139
		1140	const_iv (MSG_CMSG_CLOEXEC)
		1141	const_iv (SOCK_CLOEXEC)
		1142
		1143	const_iv (F_OFD_GETLK)
		1144	const_iv (F_OFD_SETLK)
		1145	const_iv (F_OFD_GETLKW)
		1146
		1147	const_iv (FIFREEZE)
		1148	const_iv (FITHAW)
		1149	const_iv (FITRIM)
		1150	const_iv (FICLONE)
		1151	const_iv (FICLONERANGE)
		1152	const_iv (FIDEDUPERANGE)
		1153
		1154	const_iv (FS_IOC_GETFLAGS)
		1155	const_iv (FS_IOC_SETFLAGS)
		1156	const_iv (FS_IOC_GETVERSION)
		1157	const_iv (FS_IOC_SETVERSION)
		1158	const_iv (FS_IOC_FIEMAP)
		1159	const_iv (FS_IOC_FSGETXATTR)
		1160	const_iv (FS_IOC_FSSETXATTR)
		1161	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1162	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1163	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1164
		1165	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1166
		1167	const_iv (FS_SECRM_FL)
		1168	const_iv (FS_UNRM_FL)
		1169	const_iv (FS_COMPR_FL)
		1170	const_iv (FS_SYNC_FL)
		1171	const_iv (FS_IMMUTABLE_FL)
		1172	const_iv (FS_APPEND_FL)
		1173	const_iv (FS_NODUMP_FL)
		1174	const_iv (FS_NOATIME_FL)
		1175	const_iv (FS_DIRTY_FL)
		1176	const_iv (FS_COMPRBLK_FL)
		1177	const_iv (FS_NOCOMP_FL)
		1178	const_iv (FS_ENCRYPT_FL)
		1179	const_iv (FS_BTREE_FL)
		1180	const_iv (FS_INDEX_FL)
		1181	const_iv (FS_JOURNAL_DATA_FL)
		1182	const_iv (FS_NOTAIL_FL)
		1183	const_iv (FS_DIRSYNC_FL)
		1184	const_iv (FS_TOPDIR_FL)
		1185	const_iv (FS_FL_USER_MODIFIABLE)
		1186
		1187	const_iv (FS_XFLAG_REALTIME)
		1188	const_iv (FS_XFLAG_PREALLOC)
		1189	const_iv (FS_XFLAG_IMMUTABLE)
		1190	const_iv (FS_XFLAG_APPEND)
		1191	const_iv (FS_XFLAG_SYNC)
		1192	const_iv (FS_XFLAG_NOATIME)
		1193	const_iv (FS_XFLAG_NODUMP)
		1194	const_iv (FS_XFLAG_RTINHERIT)
		1195	const_iv (FS_XFLAG_PROJINHERIT)
		1196	const_iv (FS_XFLAG_NOSYMLINKS)
		1197	const_iv (FS_XFLAG_EXTSIZE)
		1198	const_iv (FS_XFLAG_EXTSZINHERIT)
		1199	const_iv (FS_XFLAG_NODEFRAG)
		1200	const_iv (FS_XFLAG_FILESTREAM)
		1201	const_iv (FS_XFLAG_DAX)
		1202	const_iv (FS_XFLAG_HASATTR)
		1203
		1204	const_iv (FIEMAP_FLAG_SYNC)
		1205	const_iv (FIEMAP_FLAG_XATTR)
		1206	const_iv (FIEMAP_FLAGS_COMPAT)
		1207	const_iv (FIEMAP_EXTENT_LAST)
		1208	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1209	const_iv (FIEMAP_EXTENT_DELALLOC)
		1210	const_iv (FIEMAP_EXTENT_ENCODED)
		1211	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1212	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1213	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1214	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1215	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1216	const_iv (FIEMAP_EXTENT_MERGED)
		1217	const_iv (FIEMAP_EXTENT_SHARED)
		1218
		1219	const_iv (SPLICE_F_MOVE)
		1220	const_iv (SPLICE_F_NONBLOCK)
		1221	const_iv (SPLICE_F_MORE)
		1222	const_iv (SPLICE_F_GIFT)
		1223
		1224	const_iv (EFD_CLOEXEC)
		1225	const_iv (EFD_NONBLOCK)
		1226	const_iv (EFD_SEMAPHORE)
		1227
		1228	const_iv (CLOCK_REALTIME)
		1229	const_iv (CLOCK_MONOTONIC)
		1230	const_iv (CLOCK_BOOTTIME)
		1231	const_iv (CLOCK_REALTIME_ALARM)
		1232	const_iv (CLOCK_BOOTTIME_ALARM)
		1233
		1234	const_iv (TFD_NONBLOCK)
		1235	const_iv (TFD_CLOEXEC)
		1236
		1237	const_iv (TFD_TIMER_ABSTIME)
		1238	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1239
		1240	/* these are libeio constants, and are independent of gendef0 */
		1241	const_eio (SEEK_SET)
		1242	const_eio (SEEK_CUR)
		1243	const_eio (SEEK_END)
883		1244
884	const_eio (MCL_FUTURE)	1245	const_eio (MCL_FUTURE)
885	const_eio (MCL_CURRENT)	1246	const_eio (MCL_CURRENT)
886		1247
887	const_eio (MS_ASYNC)	1248	const_eio (MS_ASYNC)
…		…
893	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1254	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
894	const_eio (SYNC_FILE_RANGE_WRITE)	1255	const_eio (SYNC_FILE_RANGE_WRITE)
895	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1256	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
896		1257
897	const_eio (FALLOC_FL_KEEP_SIZE)	1258	const_eio (FALLOC_FL_KEEP_SIZE)
		1259	const_eio (FALLOC_FL_PUNCH_HOLE)
		1260	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1261	const_eio (FALLOC_FL_ZERO_RANGE)
		1262	const_eio (FALLOC_FL_INSERT_RANGE)
		1263	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1264
		1265	const_eio (RENAME_NOREPLACE)
		1266	const_eio (RENAME_EXCHANGE)
		1267	const_eio (RENAME_WHITEOUT)
898		1268
899	const_eio (READDIR_DENTS)	1269	const_eio (READDIR_DENTS)
900	const_eio (READDIR_DIRS_FIRST)	1270	const_eio (READDIR_DIRS_FIRST)
901	const_eio (READDIR_STAT_ORDER)	1271	const_eio (READDIR_STAT_ORDER)
902	const_eio (READDIR_FOUND_UNKNOWN)	1272	const_eio (READDIR_FOUND_UNKNOWN)
…		…
913	};	1283	};
914		1284
915	aio_stash = gv_stashpv ("IO::AIO" , 1);	1285	aio_stash = gv_stashpv ("IO::AIO" , 1);
916	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1286	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
917	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1287	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1288	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
918		1289
919	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1290	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
920	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1291	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
921		1292
922	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1293	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
923		1294
924	create_respipe ();	1295	reinit ();
925
926	if (eio_init (want_poll, done_poll) < 0)
927	croak ("IO::AIO: unable to initialise eio library");
928
929	/* atfork child called in fifo order, so before eio's handler */
930	X_THREAD_ATFORK (0, 0, atfork_child);
931	}	1296	}
		1297
		1298	void
		1299	reinit ()
		1300	PROTOTYPE:
932		1301
933	void	1302	void
934	max_poll_reqs (unsigned int nreqs)	1303	max_poll_reqs (unsigned int nreqs)
935	PROTOTYPE: $	1304	PROTOTYPE: $
936	CODE:	1305	CODE:
…		…
971	PROTOTYPE: $	1340	PROTOTYPE: $
972	CODE:	1341	CODE:
973	max_outstanding = maxreqs;	1342	max_outstanding = maxreqs;
974		1343
975	void	1344	void
976	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1345	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
977	PPCODE:	1346	PPCODE:
978	{	1347	{
979	dREQ;	1348	dREQ;
980		1349
		1350	req->type = EIO_WD_OPEN;
		1351	req_set_path1 (req, pathname);
		1352
		1353	REQ_SEND;
		1354	}
		1355
		1356	void
		1357	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1358	PPCODE:
		1359	{
		1360	dREQ;
		1361
981	req->type = EIO_OPEN;	1362	req->type = EIO_OPEN;
982	req->sv1 = newSVsv (pathname);	1363	req_set_path1 (req, pathname);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);
984	req->int1 = flags;	1364	req->int1 = flags;
985	req->int2 = mode;	1365	req->int2 = mode;
986		1366
987	REQ_SEND;	1367	REQ_SEND;
988	}	1368	}
989		1369
990	void	1370	void
991	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1371	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
992	ALIAS:	1372	ALIAS:
993	aio_fsync = EIO_FSYNC	1373	aio_fsync = EIO_FSYNC
994	aio_fdatasync = EIO_FDATASYNC	1374	aio_fdatasync = EIO_FDATASYNC
		1375	aio_syncfs = EIO_SYNCFS
995	PPCODE:	1376	PPCODE:
996	{	1377	{
997	int fd = s_fileno_croak (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
998	dREQ;	1379	dREQ;
999		1380
1000	req->type = ix;	1381	req->type = ix;
1001	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
1002	req->int1 = fd;	1383	req->int1 = fd;
1003		1384
1004	REQ_SEND (req);	1385	REQ_SEND;
1005	}	1386	}
1006		1387
1007	void	1388	void
1008	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1389	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1009	PPCODE:	1390	PPCODE:
1010	{	1391	{
1011	int fd = s_fileno_croak (fh, 0);	1392	int fd = s_fileno_croak (fh, 0);
1012	dREQ;	1393	dREQ;
1013		1394
1014	req->type = EIO_SYNC_FILE_RANGE;	1395	req->type = EIO_SYNC_FILE_RANGE;
1015	req->sv1 = newSVsv (fh);	1396	req->sv1 = newSVsv (fh);
1016	req->int1 = fd;	1397	req->int1 = fd;
1017	req->offs = offset;	1398	req->offs = offset;
1018	req->size = nbytes;	1399	req->size = nbytes;
1019	req->int2 = flags;	1400	req->int2 = flags;
1020		1401
1021	REQ_SEND (req);	1402	REQ_SEND;
1022	}	1403	}
1023		1404
1024	void	1405	void
1025	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1406	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1026	PPCODE:	1407	PPCODE:
1027	{	1408	{
1028	int fd = s_fileno_croak (fh, 0);	1409	int fd = s_fileno_croak (fh, 0);
1029	dREQ;	1410	dREQ;
1030		1411
1031	req->type = EIO_FALLOCATE;	1412	req->type = EIO_FALLOCATE;
1032	req->sv1 = newSVsv (fh);	1413	req->sv1 = newSVsv (fh);
1033	req->int1 = fd;	1414	req->int1 = fd;
1034	req->int2 = mode;	1415	req->int2 = mode;
1035	req->offs = offset;	1416	req->offs = offset;
1036	req->size = len;	1417	req->size = len;
1037		1418
1038	REQ_SEND (req);	1419	REQ_SEND;
1039	}	1420	}
1040		1421
1041	void	1422	void
1042	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1423	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1043	PPCODE:	1424	PPCODE:
1044	{	1425	{
1045	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1426	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1046	int fd = s_fileno_croak (fh, 0);	1427	int fd = s_fileno_croak (fh, 0);
1047	dREQ;	1428	dREQ;
1048		1429
1049	if (expect_false (close_fd < 0))	1430	if (expect_false (close_fd < 0))
1050	{	1431	{
		1432	int pipefd [2];
		1433
		1434	if (
1051	#ifdef _WIN32	1435	#ifdef _WIN32
1052	close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);	1436	_pipe (pipefd, 1, _O_BINARY) < 0
1053	#else	1437	#else
1054	int pipefd [2];
1055
1056	if (pipe (pipefd) < 0	1438	pipe (pipefd) < 0
1057	|| close (pipefd [1]) < 0
1058	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1439	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1440	#endif
		1441	|| close (pipefd [1]) < 0
		1442	)
1059	abort (); /*D*/	1443	abort (); /*D*/
1060		1444
1061	close_fd = pipefd [0];	1445	close_fd = pipefd [0];
1062	#endif
1063	}	1446	}
1064		1447
1065	req->type = EIO_DUP2;	1448	req->type = EIO_DUP2;
1066	req->int1 = close_fd;	1449	req->int1 = close_fd;
1067	req->sv2 = newSVsv (fh);	1450	req->sv2 = newSVsv (fh);
1068	req->int2 = fd;	1451	req->int2 = fd;
1069		1452
1070	REQ_SEND (req);	1453	REQ_SEND;
1071	}	1454	}
1072		1455
1073	void	1456	void
		1457	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1458	PPCODE:
		1459	{
		1460	int fd = s_fileno_croak (fh, 0);
		1461	dREQ;
		1462
		1463	req->type = EIO_SEEK;
		1464	req->sv1 = newSVsv (fh);
		1465	req->int1 = fd;
		1466	req->offs = SvVAL64 (offset);
		1467	req->int2 = whence;
		1468
		1469	REQ_SEND;
		1470	}
		1471
		1472	void
1074	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1473	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1075	ALIAS:	1474	ALIAS:
1076	aio_read = EIO_READ	1475	aio_read = EIO_READ
1077	aio_write = EIO_WRITE	1476	aio_write = EIO_WRITE
1078	PPCODE:	1477	PPCODE:
1079	{	1478	{
…		…
1095	len = svlen - dataoffset;	1494	len = svlen - dataoffset;
1096	}	1495	}
1097	else	1496	else
1098	{	1497	{
1099	/* read: check type and grow scalar as necessary */	1498	/* read: check type and grow scalar as necessary */
1100	SvUPGRADE (data, SVt_PV);	1499	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1101	svptr = SvGROW (data, len + dataoffset + 1);	1500	svptr = sv_grow (data, len + dataoffset + 1);
		1501	else if (SvCUR (data) < len + dataoffset)
		1502	croak ("length + dataoffset outside of scalar, and cannot grow");
1102	}	1503	}
1103		1504
1104	{	1505	{
1105	dREQ;	1506	dREQ;
1106		1507
…		…
1122	REQ_SEND;	1523	REQ_SEND;
1123	}	1524	}
1124	}	1525	}
1125		1526
1126	void	1527	void
		1528	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1529	ALIAS:
		1530	aio_ioctl = EIO_IOCTL
		1531	aio_fcntl = EIO_FCNTL
		1532	PPCODE:
		1533	{
		1534	int fd = s_fileno_croak (fh, 0);
		1535	char *svptr;
		1536
		1537	if (SvPOK (arg) || !SvNIOK (arg))
		1538	{
		1539	STRLEN svlen;
		1540	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1541	#ifdef IOCPARM_LEN
		1542	STRLEN need = IOCPARM_LEN (request);
		1543	#else
		1544	STRLEN need = 256;
		1545	#endif
		1546
		1547	if (svlen < need)
		1548	svptr = SvGROW (arg, need);
		1549	}
		1550	else
		1551	svptr = (char *)SvIV (arg);
		1552
		1553	{
		1554	dREQ;
		1555
		1556	req->type = ix;
		1557	req->sv1 = newSVsv (fh);
		1558	req->int1 = fd;
		1559	req->int2 = (long)request;
		1560	req->sv2 = SvREFCNT_inc (arg);
		1561	req->ptr2 = svptr;
		1562
		1563	REQ_SEND;
		1564	}
		1565	}
		1566
		1567	void
1127	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1568	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1128	ALIAS:	1569	ALIAS:
1129	aio_readlink = EIO_READLINK	1570	aio_readlink = EIO_READLINK
1130	aio_realpath = EIO_REALPATH	1571	aio_realpath = EIO_REALPATH
1131	PPCODE:	1572	PPCODE:
1132	{	1573	{
1133	SV *data;
1134	dREQ;	1574	dREQ;
1135		1575
1136	req->type = ix;	1576	req->type = ix;
1137	req->sv1 = newSVsv (path);	1577	req_set_path1 (req, pathname);
1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
1139		1578
1140	REQ_SEND;	1579	REQ_SEND;
1141	}	1580	}
1142		1581
1143	void	1582	void
1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1583	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1145	PPCODE:	1584	PPCODE:
1146	{	1585	{
1147	int ifd = s_fileno_croak (in_fh , 0);	1586	int ifd = s_fileno_croak (in_fh , 0);
1148	int ofd = s_fileno_croak (out_fh, 1);	1587	int ofd = s_fileno_croak (out_fh, 1);
1149	dREQ;	1588	dREQ;
1150		1589
1151	req->type = EIO_SENDFILE;	1590	req->type = EIO_SENDFILE;
1152	req->sv1 = newSVsv (out_fh);	1591	req->sv1 = newSVsv (out_fh);
1153	req->int1 = ofd;	1592	req->int1 = ofd;
…		…
1158		1597
1159	REQ_SEND;	1598	REQ_SEND;
1160	}	1599	}
1161		1600
1162	void	1601	void
1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1602	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1164	PPCODE:	1603	PPCODE:
1165	{	1604	{
1166	int fd = s_fileno_croak (fh, 0);	1605	int fd = s_fileno_croak (fh, 0);
1167	dREQ;	1606	dREQ;
1168		1607
1169	req->type = EIO_READAHEAD;	1608	req->type = EIO_READAHEAD;
1170	req->sv1 = newSVsv (fh);	1609	req->sv1 = newSVsv (fh);
1171	req->int1 = fd;	1610	req->int1 = fd;
…		…
1174		1613
1175	REQ_SEND;	1614	REQ_SEND;
1176	}	1615	}
1177		1616
1178	void	1617	void
1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1618	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1180	ALIAS:	1619	ALIAS:
1181	aio_stat = EIO_STAT	1620	aio_stat = EIO_STAT
1182	aio_lstat = EIO_LSTAT	1621	aio_lstat = EIO_LSTAT
1183	aio_statvfs = EIO_STATVFS	1622	aio_statvfs = EIO_STATVFS
1184	PPCODE:	1623	PPCODE:
1185	{	1624	{
1186	dREQ;	1625	dREQ;
1187		1626
1188	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1189
1190	if (SvPOK (req->sv1))
1191	{
1192	req->type = ix;
1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
1194	}
1195	else
1196	{
1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1199	}
1200		1628
1201	REQ_SEND;	1629	REQ_SEND;
1202	}	1630	}
		1631
		1632	void
		1633	stat_xtime ()
		1634	ALIAS:
		1635	stat_atime = 1
		1636	stat_mtime = 2
		1637	stat_ctime = 4
		1638	stat_xtime = 7
		1639	PPCODE:
		1640	EXTEND (SP, 3);
		1641	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1642	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1643	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1644
		1645	void
		1646	stat_xtimensec ()
		1647	ALIAS:
		1648	stat_atimensec = 1
		1649	stat_mtimensec = 2
		1650	stat_ctimensec = 4
		1651	stat_xtimensec = 7
		1652	PPCODE:
		1653	EXTEND (SP, 3);
		1654	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1655	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1656	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1203		1657
1204	UV	1658	UV
1205	major (UV dev)	1659	major (UV dev)
1206	ALIAS:	1660	ALIAS:
1207	minor = 1	1661	minor = 1
1208	CODE:	1662	CODE:
1209	RETVAL = ix ? major (dev) : minor (dev);	1663	RETVAL = ix ? minor (dev) : major (dev);
1210	OUTPUT:	1664	OUTPUT:
1211	RETVAL	1665	RETVAL
1212		1666
1213	UV	1667	UV
1214	makedev (UV maj, UV min)	1668	makedev (UV maj, UV min)
…		…
1216	RETVAL = makedev (maj, min);	1670	RETVAL = makedev (maj, min);
1217	OUTPUT:	1671	OUTPUT:
1218	RETVAL	1672	RETVAL
1219		1673
1220	void	1674	void
1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1675	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1222	PPCODE:	1676	PPCODE:
1223	{	1677	{
1224	dREQ;	1678	dREQ;
1225		1679
1226	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1680	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1227	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1681	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1228	req->sv1 = newSVsv (fh_or_path);	1682	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1229
1230	if (SvPOK (req->sv1))
1231	{
1232	req->type = EIO_UTIME;
1233	req->ptr1 = SvPVbyte_nolen (req->sv1);
1234	}
1235	else
1236	{
1237	req->type = EIO_FUTIME;
1238	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1239	}
1240		1683
1241	REQ_SEND;	1684	REQ_SEND;
1242	}	1685	}
1243		1686
1244	void	1687	void
1245	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1688	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1246	PPCODE:	1689	PPCODE:
1247	{	1690	{
1248	dREQ;	1691	dREQ;
1249		1692
1250	req->sv1 = newSVsv (fh_or_path);
1251	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1693	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1252		1694	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1253	if (SvPOK (req->sv1))
1254	{
1255	req->type = EIO_TRUNCATE;
1256	req->ptr1 = SvPVbyte_nolen (req->sv1);
1257	}
1258	else
1259	{
1260	req->type = EIO_FTRUNCATE;
1261	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1262	}
1263		1695
1264	REQ_SEND;	1696	REQ_SEND;
1265	}	1697	}
1266		1698
1267	void	1699	void
1268	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1700	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1269	ALIAS:
1270	aio_chmod = EIO_CHMOD
1271	aio_mkdir = EIO_MKDIR
1272	PPCODE:	1701	PPCODE:
1273	{	1702	{
1274	dREQ;	1703	dREQ;
1275		1704
1276	req->int2 = mode;	1705	req->int2 = mode;
1277	req->sv1 = newSVsv (fh_or_path);	1706	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1278
1279	if (SvPOK (req->sv1))
1280	{
1281	req->type = ix;
1282	req->ptr1 = SvPVbyte_nolen (req->sv1);
1283	}
1284	else
1285	{
1286	req->type = EIO_FCHMOD;
1287	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1288	}
1289		1707
1290	REQ_SEND;	1708	REQ_SEND;
1291	}	1709	}
1292		1710
1293	void	1711	void
1294	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1712	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1295	PPCODE:	1713	PPCODE:
1296	{	1714	{
1297	dREQ;	1715	dREQ;
1298		1716
1299	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1717	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1300	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1718	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1301	req->sv1 = newSVsv (fh_or_path);	1719	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1302
1303	if (SvPOK (req->sv1))
1304	{
1305	req->type = EIO_CHOWN;
1306	req->ptr1 = SvPVbyte_nolen (req->sv1);
1307	}
1308	else
1309	{
1310	req->type = EIO_FCHOWN;
1311	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1312	}
1313		1720
1314	REQ_SEND;	1721	REQ_SEND;
1315	}	1722	}
1316		1723
1317	void	1724	void
1318	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1725	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1319	PPCODE:	1726	PPCODE:
1320	{	1727	{
1321	dREQ;	1728	dREQ;
1322		1729
1323	req->type = EIO_READDIR;	1730	req->type = EIO_READDIR;
1324	req->sv1 = newSVsv (pathname);
1325	req->ptr1 = SvPVbyte_nolen (req->sv1);
1326	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1731	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1327		1732
1328	if (flags & EIO_READDIR_DENTS)	1733	if (flags & EIO_READDIR_DENTS)
1329	req->int1 |= EIO_READDIR_CUSTOM2;	1734	req->int1 |= EIO_READDIR_CUSTOM2;
1330		1735
		1736	req_set_path1 (req, pathname);
		1737
1331	REQ_SEND;	1738	REQ_SEND;
1332	}	1739	}
1333		1740
1334	void	1741	void
		1742	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	dREQ;
		1746
		1747	req->type = EIO_MKDIR;
		1748	req->int2 = mode;
		1749	req_set_path1 (req, pathname);
		1750
		1751	REQ_SEND;
		1752	}
		1753
		1754	void
1335	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1755	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1336	ALIAS:	1756	ALIAS:
1337	aio_unlink = EIO_UNLINK	1757	aio_unlink = EIO_UNLINK
1338	aio_rmdir = EIO_RMDIR	1758	aio_rmdir = EIO_RMDIR
1339	aio_readdir = EIO_READDIR	1759	aio_readdir = EIO_READDIR
1340	PPCODE:	1760	PPCODE:
1341	{	1761	{
1342	dREQ;	1762	dREQ;
1343		1763
1344	req->type = ix;	1764	req->type = ix;
1345	req->sv1 = newSVsv (pathname);	1765	req_set_path1 (req, pathname);
1346	req->ptr1 = SvPVbyte_nolen (req->sv1);
1347		1766
1348	REQ_SEND;	1767	REQ_SEND;
1349	}	1768	}
1350		1769
1351	void	1770	void
1352	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1771	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1353	ALIAS:	1772	ALIAS:
1354	aio_link = EIO_LINK	1773	aio_link = EIO_LINK
1355	aio_symlink = EIO_SYMLINK	1774	aio_symlink = EIO_SYMLINK
1356	aio_rename = EIO_RENAME	1775	aio_rename = EIO_RENAME
1357	PPCODE:	1776	PPCODE:
1358	{	1777	{
		1778	eio_wd wd2 = 0;
1359	dREQ;	1779	dREQ;
1360		1780
1361	req->type = ix;	1781	req->type = ix;
1362	req->sv1 = newSVsv (oldpath);	1782	req_set_path1 (req, oldpath);
1363	req->ptr1 = SvPVbyte_nolen (req->sv1);	1783	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1364	req->sv2 = newSVsv (newpath);	1784	req->int3 = (long)wd2;
1365	req->ptr2 = SvPVbyte_nolen (req->sv2);
1366		1785
1367	REQ_SEND;	1786	REQ_SEND;
1368	}	1787	}
1369		1788
1370	void	1789	void
		1790	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1791	PPCODE:
		1792	{
		1793	eio_wd wd2 = 0;
		1794	dREQ;
		1795
		1796	req->type = EIO_RENAME;
		1797	req_set_path1 (req, oldpath);
		1798	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1799	req->int2 = flags;
		1800	req->int3 = (long)wd2;
		1801
		1802	REQ_SEND;
		1803	}
		1804
		1805	void
1371	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1806	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1372	PPCODE:	1807	PPCODE:
1373	{	1808	{
1374	dREQ;	1809	dREQ;
1375		1810
1376	req->type = EIO_MKNOD;	1811	req->type = EIO_MKNOD;
1377	req->sv1 = newSVsv (pathname);
1378	req->ptr1 = SvPVbyte_nolen (req->sv1);
1379	req->int2 = (mode_t)mode;	1812	req->int2 = (mode_t)mode;
1380	req->offs = dev;	1813	req->offs = dev;
		1814	req_set_path1 (req, pathname);
1381		1815
1382	REQ_SEND;	1816	REQ_SEND;
1383	}	1817	}
1384		1818
1385	void	1819	void
1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1820	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1387	ALIAS:	1821	ALIAS:
1388	aio_mtouch = EIO_MTOUCH	1822	aio_mtouch = EIO_MTOUCH
1389	aio_msync = EIO_MSYNC	1823	aio_msync = EIO_MSYNC
1390	PPCODE:	1824	PPCODE:
1391	{	1825	{
1392	STRLEN svlen;	1826	STRLEN svlen;
1393	char *svptr = SvPVbyte (data, svlen);	1827	char *svptr = SvPVbyte (data, svlen);
1394	UV len = SvUV (length);	1828	UV len = SvUV (length);
		1829
		1830	if (flags < 0)
		1831	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1395		1832
1396	if (offset < 0)	1833	if (offset < 0)
1397	offset += svlen;	1834	offset += svlen;
1398		1835
1399	if (offset < 0 || offset > svlen)	1836	if (offset < 0 || offset > svlen)
…		…
1414	REQ_SEND;	1851	REQ_SEND;
1415	}	1852	}
1416	}	1853	}
1417		1854
1418	void	1855	void
1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1856	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1420	PPCODE:	1857	PPCODE:
1421	{	1858	{
1422	STRLEN svlen;	1859	STRLEN svlen;
1423	char *svptr = SvPVbyte (data, svlen);	1860	char *svptr = SvPVbyte (data, svlen);
1424	UV len = SvUV (length);	1861	UV len = SvUV (length);
…		…
1443	REQ_SEND;	1880	REQ_SEND;
1444	}	1881	}
1445	}	1882	}
1446		1883
1447	void	1884	void
1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1885	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1449	PPCODE:	1886	PPCODE:
1450	{	1887	{
1451	dREQ;	1888	dREQ;
1452		1889
1453	req->type = EIO_MLOCKALL;	1890	req->type = EIO_MLOCKALL;
…		…
1455		1892
1456	REQ_SEND;	1893	REQ_SEND;
1457	}	1894	}
1458		1895
1459	void	1896	void
		1897	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1898	PPCODE:
		1899	{
		1900	int fd = s_fileno_croak (fh, 0);
		1901	dREQ;
		1902
		1903	req->type = EIO_CUSTOM;
		1904	req->sv1 = newSVsv (fh);
		1905	req->int1 = fd;
		1906
		1907	req->feed = fiemap;
		1908	#if HAVE_FIEMAP
		1909	/* keep our fingers crossed that the next two types are 64 bit */
		1910	req->offs = start;
		1911	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1912	req->int2 = flags;
		1913	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1914	#endif
		1915
		1916	REQ_SEND;
		1917	}
		1918
		1919	void
		1920	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1921	PPCODE:
		1922	{
		1923	char *svptr = 0;
		1924
		1925	sv_clear_foreign (data);
		1926
		1927	if (length) /* known length, directly read into scalar */
		1928	{
		1929	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1930	svptr = sv_grow (data, length + 1);
		1931	else if (SvCUR (data) < length)
		1932	croak ("length outside of scalar, and cannot grow");
		1933	else
		1934	svptr = SvPVbyte_nolen (data);
		1935	}
		1936
		1937	{
		1938	dREQ;
		1939
		1940	req->type = EIO_SLURP;
		1941	req_set_path1 (req, pathname);
		1942	req->offs = offset;
		1943	req->size = length;
		1944	req->sv2 = SvREFCNT_inc (data);
		1945	req->ptr2 = svptr;
		1946
		1947	if (!SvREADONLY (data))
		1948	{
		1949	SvREADONLY_on (data);
		1950	req->flags |= FLAG_SV2_RO_OFF;
		1951	}
		1952
		1953	REQ_SEND;
		1954	}
		1955	}
		1956
		1957	void
1460	aio_busy (double delay, SV *callback=&PL_sv_undef)	1958	aio_busy (double delay, SV *callback = &PL_sv_undef)
1461	PPCODE:	1959	PPCODE:
1462	{	1960	{
1463	dREQ;	1961	dREQ;
1464		1962
1465	req->type = EIO_BUSY;	1963	req->type = EIO_BUSY;
…		…
1467		1965
1468	REQ_SEND;	1966	REQ_SEND;
1469	}	1967	}
1470		1968
1471	void	1969	void
1472	aio_group (SV *callback=&PL_sv_undef)	1970	aio_group (SV *callback = &PL_sv_undef)
1473	PPCODE:	1971	PPCODE:
1474	{	1972	{
1475	dREQ;	1973	dREQ;
1476		1974
1477	req->type = EIO_GROUP;	1975	req->type = EIO_GROUP;
1478		1976
		1977	PUTBACK;
1479	req_submit (req);	1978	req_submit (req);
		1979	SPAGAIN;
		1980
1480	XPUSHs (req_sv (req, aio_grp_stash));	1981	XPUSHs (req_sv (req, aio_grp_stash));
1481	}	1982	}
1482		1983
1483	void	1984	void
1484	aio_nop (SV *callback=&PL_sv_undef)	1985	aio_nop (SV *callback = &PL_sv_undef)
1485	ALIAS:	1986	ALIAS:
1486	aio_nop = EIO_NOP	1987	aio_nop = EIO_NOP
1487	aio_sync = EIO_SYNC	1988	aio_sync = EIO_SYNC
1488	PPCODE:	1989	PPCODE:
1489	{	1990	{
…		…
1493		1994
1494	REQ_SEND;	1995	REQ_SEND;
1495	}	1996	}
1496		1997
1497	int	1998	int
1498	aioreq_pri (int pri = 0)	1999	aioreq_pri (int pri = NO_INIT)
1499	CODE:	2000	CODE:
1500	RETVAL = next_pri;	2001	RETVAL = next_pri;
1501	if (items > 0)	2002	if (items > 0)
1502	{	2003	{
1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2004	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1585	CODE:	2086	CODE:
1586	RETVAL = posix_fadvise (fh, offset, length, advice);	2087	RETVAL = posix_fadvise (fh, offset, length, advice);
1587	OUTPUT:	2088	OUTPUT:
1588	RETVAL	2089	RETVAL
1589		2090
1590	ssize_t	2091	IV
1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2092	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1592	CODE:	2093	CODE:
1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2094	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1594	OUTPUT:	2095	OUTPUT:
1595	RETVAL	2096	RETVAL
1596		2097
1597	void	2098	void
1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2099	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1599	PPCODE:	2100	PPCODE:
1600	sv_unmagic (scalar, MMAP_MAGIC);	2101	sv_clear_foreign (scalar);
1601	{	2102	{
1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2103	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2104	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1604	if (addr == (void *)-1)	2105	if (addr == (void *)-1)
1605	XSRETURN_NO;	2106	XSRETURN_NO;
1606		2107
1607	sv_force_normal (scalar);	2108	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1608
1609	/* we store the length in mg_obj, as namlen is I32 :/ */
1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1611	->mg_obj = (SV *)length;
1612
1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
1614		2109
1615	if (!(prot & PROT_WRITE))	2110	if (!(prot & PROT_WRITE))
1616	SvREADONLY_on (scalar);	2111	SvREADONLY_on (scalar);
1617		2112
1618	if (SvLEN (scalar))
1619	Safefree (SvPVX (scalar));
1620
1621	SvPVX (scalar) = (char *)addr;
1622	SvCUR_set (scalar, length);
1623	SvLEN_set (scalar, 0);
1624	SvPOK_only (scalar);
1625
1626	XSRETURN_YES;	2113	XSRETURN_YES;
1627	}	2114	}
1628		2115
1629	void	2116	void
1630	munmap (SV *scalar)	2117	munmap (SV *scalar)
1631	CODE:	2118	CODE:
1632	sv_unmagic (scalar, MMAP_MAGIC);	2119	sv_clear_foreign (scalar);
		2120
		2121	SV *
		2122	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2123	CODE:
		2124	{
		2125	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2126	void *new;
		2127
		2128	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2129	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2130
		2131	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2132
		2133	RETVAL = &PL_sv_no;
		2134
		2135	if (new != (void *)-1)
		2136	{
		2137	RETVAL = new == (void *)mg->mg_ptr
		2138	? newSVpvn ("0 but true", 10)
		2139	: &PL_sv_yes;
		2140
		2141	mg->mg_ptr = (char *)new;
		2142	mg->mg_obj = (SV *)new_length;
		2143
		2144	SvPVX (scalar) = mg->mg_ptr;
		2145	SvCUR_set (scalar, new_length);
		2146	}
		2147	}
		2148	OUTPUT:
		2149	RETVAL
1633		2150
1634	int	2151	int
1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2152	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1636	ALIAS:	2153	ALIAS:
1637	mprotect = 1	2154	mprotect = 1
1638	CODE:	2155	CODE:
1639	{	2156	{
1640	STRLEN svlen;	2157	STRLEN svlen;
1641	void *addr = SvPVbyte (scalar, svlen);	2158	void *addr = SvPVbyte (scalar, svlen);
1642	size_t len = SvUV (length);	2159	STRLEN len = SvUV (length);
1643		2160
1644	if (offset < 0)	2161	if (offset < 0)
1645	offset += svlen;	2162	offset += svlen;
1646		2163
1647	if (offset < 0 || offset > svlen)	2164	if (offset < 0 || offset > svlen)
…		…
1661	}	2178	}
1662	OUTPUT:	2179	OUTPUT:
1663	RETVAL	2180	RETVAL
1664		2181
1665	int	2182	int
1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2183	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1667	CODE:	2184	CODE:
1668	{	2185	{
1669	STRLEN svlen;	2186	STRLEN svlen;
1670	void *addr = SvPVbyte (scalar, svlen);	2187	void *addr = SvPVbyte (scalar, svlen);
1671	size_t len = SvUV (length);	2188	size_t len = SvUV (length);
1672		2189
1673	if (offset < 0)	2190	if (offset < 0)
1674	offset += svlen;	2191	offset += svlen;
1675		2192
…		…
1682	addr = (void *)(((intptr_t)addr) + offset);	2199	addr = (void *)(((intptr_t)addr) + offset);
1683	eio_page_align (&addr, &len);	2200	eio_page_align (&addr, &len);
1684	#if _POSIX_MEMLOCK_RANGE	2201	#if _POSIX_MEMLOCK_RANGE
1685	RETVAL = munlock (addr, len);	2202	RETVAL = munlock (addr, len);
1686	#else	2203	#else
1687	RETVAL = ((errno = ENOSYS), -1);	2204	RETVAL = EIO_ENOSYS ();
1688	#endif	2205	#endif
1689	}	2206	}
1690	OUTPUT:	2207	OUTPUT:
1691	RETVAL	2208	RETVAL
1692		2209
…		…
1694	munlockall ()	2211	munlockall ()
1695	CODE:	2212	CODE:
1696	#if _POSIX_MEMLOCK	2213	#if _POSIX_MEMLOCK
1697	munlockall ();	2214	munlockall ();
1698	#else	2215	#else
1699	RETVAL = -1;	2216	RETVAL = EIO_ENOSYS ();
1700	errno = ENOSYS;
1701	#endif	2217	#endif
1702	OUTPUT:	2218	OUTPUT:
1703	RETVAL	2219	RETVAL
		2220
		2221	int
		2222	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2223	CODE:
		2224	{
		2225	#if HAVE_LINUX_SPLICE
		2226	loff_t off_in_, off_out_;
		2227	RETVAL = splice (
		2228	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2229	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2230	length, flags
		2231	);
		2232	#else
		2233	RETVAL = EIO_ENOSYS ();
		2234	#endif
		2235	}
		2236	OUTPUT:
		2237	RETVAL
		2238
		2239	int
		2240	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2241	CODE:
		2242	#if HAVE_LINUX_SPLICE
		2243	RETVAL = tee (rfh, wfh, length, flags);
		2244	#else
		2245	RETVAL = EIO_ENOSYS ();
		2246	#endif
		2247	OUTPUT:
		2248	RETVAL
		2249
		2250	int
		2251	pipesize (aio_rfd rfh, int new_size = -1)
		2252	PROTOTYPE: $;$
		2253	CODE:
		2254	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2255	if (new_size >= 0)
		2256	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2257	else
		2258	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2259	#else
		2260	errno = ENOSYS;
		2261	RETVAL = -1;
		2262	#endif
		2263	OUTPUT:
		2264	RETVAL
		2265
		2266	void
		2267	pipe2 (int flags = 0)
		2268	PROTOTYPE: ;$
		2269	PPCODE:
		2270	{
		2271	int fd[2];
		2272	int res;
		2273
		2274	if (flags)
		2275	#if HAVE_PIPE2
		2276	res = pipe2 (fd, flags);
		2277	#else
		2278	res = (errno = ENOSYS, -1);
		2279	#endif
		2280	else
		2281	res = pipe (fd);
		2282
		2283	if (!res)
		2284	{
		2285	EXTEND (SP, 2);
		2286	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2287	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2288	}
		2289	}
		2290
		2291	void
		2292	eventfd (unsigned int initval = 0, int flags = 0)
		2293	PPCODE:
		2294	{
		2295	int fd;
		2296	#if HAVE_EVENTFD
		2297	fd = eventfd (initval, flags);
		2298	#else
		2299	fd = (errno = ENOSYS, -1);
		2300	#endif
		2301
		2302	XPUSHs (newmortalFH (fd, O_RDWR));
		2303	}
		2304
		2305	void
		2306	timerfd_create (int clockid, int flags = 0)
		2307	PPCODE:
		2308	{
		2309	int fd;
		2310	#if HAVE_TIMERFD
		2311	fd = timerfd_create (clockid, flags);
		2312	#else
		2313	fd = (errno = ENOSYS, -1);
		2314	#endif
		2315
		2316	XPUSHs (newmortalFH (fd, O_RDWR));
		2317	}
		2318
		2319	void
		2320	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2321	PPCODE:
		2322	{
		2323	int fd = s_fileno_croak (fh, 0);
		2324	#if HAVE_TIMERFD
		2325	int res;
		2326	struct itimerspec its, ots;
		2327
		2328	ts_set (&its.it_interval, interval);
		2329	ts_set (&its.it_value , value);
		2330	res = timerfd_settime (fd, flags, &its, &ots);
		2331
		2332	if (!res)
		2333	{
		2334	EXTEND (SP, 2);
		2335	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2336	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2337	}
		2338	#else
		2339	errno = ENOSYS;
		2340	#endif
		2341	}
		2342
		2343	void
		2344	timerfd_gettime (SV *fh)
		2345	PPCODE:
		2346	{
		2347	int fd = s_fileno_croak (fh, 0);
		2348	#if HAVE_TIMERFD
		2349	int res;
		2350	struct itimerspec ots;
		2351	res = timerfd_gettime (fd, &ots);
		2352
		2353	if (!res)
		2354	{
		2355	EXTEND (SP, 2);
		2356	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2357	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2358	}
		2359	#else
		2360	errno = ENOSYS;
		2361	#endif
		2362	}
		2363
		2364	UV
		2365	get_fdlimit ()
		2366	CODE:
		2367	#if HAVE_RLIMITS
		2368	struct rlimit rl;
		2369	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2370	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2371	#endif
		2372	XSRETURN_UNDEF;
		2373	OUTPUT:
		2374	RETVAL
		2375
		2376	void
		2377	min_fdlimit (UV limit = 0x7fffffffU)
		2378	CODE:
		2379	{
		2380	#if HAVE_RLIMITS
		2381	struct rlimit rl;
		2382	rlim_t orig_rlim_max;
		2383	UV bit;
		2384
		2385	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2386	goto fail;
		2387
		2388	if (rl.rlim_cur == RLIM_INFINITY)
		2389	XSRETURN_YES;
		2390
		2391	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2392
		2393	if (rl.rlim_cur < limit)
		2394	{
		2395	rl.rlim_cur = limit;
		2396
		2397	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2398	rl.rlim_max = rl.rlim_cur;
		2399	}
		2400
		2401	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2402	XSRETURN_YES;
		2403
		2404	if (errno == EPERM)
		2405	{
		2406	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2407	/* our limit overflows a system-wide limit */
		2408	/* try an adaptive algorithm, but do not lower the hardlimit */
		2409	rl.rlim_max = 0;
		2410	for (bit = 0x40000000U; bit; bit >>= 1)
		2411	{
		2412	rl.rlim_max |= bit;
		2413	rl.rlim_cur = rl.rlim_max;
		2414
		2415	/* nevr decrease the hard limit */
		2416	if (rl.rlim_max < orig_rlim_max)
		2417	break;
		2418
		2419	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2420	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2421	}
		2422
		2423	/* now, raise the soft limit to the max permitted */
		2424	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2425	{
		2426	rl.rlim_cur = rl.rlim_max;
		2427	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2428	errno = EPERM;
		2429	}
		2430	}
		2431	#endif
		2432	fail:
		2433	XSRETURN_UNDEF;
		2434	}
1704		2435
1705	void _on_next_submit (SV *cb)	2436	void _on_next_submit (SV *cb)
1706	CODE:	2437	CODE:
1707	SvREFCNT_dec (on_next_submit);	2438	SvREFCNT_dec (on_next_submit);
1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2439	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1709		2440
1710	PROTOTYPES: DISABLE	2441	PROTOTYPES: DISABLE
1711		2442
		2443	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2444
		2445	BOOT:
		2446	{
		2447	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2448	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2449	}
		2450
		2451	void
		2452	DESTROY (SV *self)
		2453	CODE:
		2454	{
		2455	aio_wd wd = SvAIO_WD (self);
		2456	#if HAVE_AT
		2457	{
		2458	SV *callback = &PL_sv_undef;
		2459	dREQ; /* clobbers next_pri :/ */
		2460	next_pri = req->pri; /* restore next_pri */
		2461	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2462	req->type = EIO_WD_CLOSE;
		2463	req->wd = wd;
		2464	REQ_SEND;
		2465	}
		2466	#else
		2467	eio_wd_close_sync (wd);
		2468	#endif
		2469	}
		2470
1712	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2471	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1713		2472
1714	void	2473	void
1715	cancel (aio_req_ornot req)	2474	cancel (aio_req_ornot req)
1716	CODE:	2475	CODE:
1717	eio_cancel (req);	2476	eio_cancel (req);
1718		2477
1719	void	2478	void
1720	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2479	cb (aio_req_ornot req, SV *callback = NO_INIT)
1721	PPCODE:	2480	PPCODE:
1722	{	2481	{
1723	if (GIMME_V != G_VOID)	2482	if (GIMME_V != G_VOID)
1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2483	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1725		2484
1726	if (items > 1)	2485	if (items > 1)
1727	{	2486	{
1728	SV *cb_cv =get_cb (callback);	2487	SV *cb_cv = get_cb (callback);
1729		2488
1730	SvREFCNT_dec (req->callback);	2489	SvREFCNT_dec (req->callback);
1731	req->callback = SvREFCNT_inc (cb_cv);	2490	req->callback = SvREFCNT_inc (cb_cv);
1732	}	2491	}
1733	}	2492	}
…		…
1790	limit (aio_req grp, int limit)	2549	limit (aio_req grp, int limit)
1791	CODE:	2550	CODE:
1792	eio_grp_limit (grp, limit);	2551	eio_grp_limit (grp, limit);
1793		2552
1794	void	2553	void
1795	feed (aio_req grp, SV *callback=&PL_sv_undef)	2554	feed (aio_req grp, SV *callback = &PL_sv_undef)
1796	CODE:	2555	CODE:
1797	{	2556	{
1798	SvREFCNT_dec (grp->sv2);	2557	SvREFCNT_dec (grp->sv2);
1799	grp->sv2 = newSVsv (callback);	2558	grp->sv2 = newSVsv (callback);
1800	grp->feed = aio_grp_feed;	2559	grp->feed = aio_grp_feed;

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