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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.193 by root, Mon Jul 25 16:51:07 2011 UTC vs.
Revision 1.267 by root, Sat Aug 25 19:25:32 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
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	30	# include <sys/mman.h>
		31	#endif
		32
		33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		39	# include <linux/fs.h>
		40	# ifdef FS_IOC_FIEMAP
		41	# include <linux/types.h>
		42	# include <linux/fiemap.h>
		43	# define HAVE_FIEMAP 1
		44	# endif
22	#endif	45	#endif
23		46
24	/* perl namespace pollution */	47	/* perl namespace pollution */
25	#undef VERSION	48	#undef VERSION
26		49
…		…
61	#undef fchmod	84	#undef fchmod
62	#undef dup	85	#undef dup
63	#undef dup2	86	#undef dup2
64	#undef abort	87	#undef abort
65	#undef pipe	88	#undef pipe
		89	#undef utime
		90
		91	#define EIO_STRUCT_STAT struct _stati64
		92	#define EIO_STRUCT_STATI64
66		93
67	#else	94	#else
68		95
69	#include <sys/time.h>	96	#include <sys/time.h>
70	#include <sys/select.h>	97	#include <sys/select.h>
71	#include <unistd.h>	98	#include <unistd.h>
72	#include <utime.h>	99	#include <utime.h>
73	#include <signal.h>	100	#include <signal.h>
74		101
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	102	#define EIO_STRUCT_STAT Stat_t
78		103
79	/* use NV for 32 bit perls as it allows larger offsets */
80	#if IVSIZE >= 8
81	# define VAL64 IV
82	# define SvVAL64 SvIV
83	# define newSVval64 newSViv
84	#else
85	# define VAL64 NV
86	# define SvVAL64 SvNV
87	# define newSVval64 newSVnv
88	#endif	104	#endif
89		105
90	/*****************************************************************************/	106	/*****************************************************************************/
91		107
92	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	114	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	115	#define expect_true(expr) expect ((expr) != 0, 1)
100		116
101	/*****************************************************************************/	117	/*****************************************************************************/
102		118
		119	#include "config.h"
		120
		121	#if HAVE_ST_XTIMENSEC
		122	# define ATIMENSEC PL_statcache.st_atimensec
		123	# define MTIMENSEC PL_statcache.st_mtimensec
		124	# define CTIMENSEC PL_statcache.st_ctimensec
		125	#elif HAVE_ST_XTIMESPEC
		126	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		127	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		128	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		129	#else
		130	# define ATIMENSEC 0
		131	# define MTIMENSEC 0
		132	# define CTIMENSEC 0
		133	#endif
		134
		135	#if HAVE_ST_BIRTHTIMENSEC
		136	# define BTIMESEC PL_statcache.st_birthtime
		137	# define BTIMENSEC PL_statcache.st_birthtimensec
		138	#elif HAVE_ST_BIRTHTIMESPEC
		139	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		140	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		141	#else
		142	# define BTIMESEC 0
		143	# define BTIMENSEC 0
		144	#endif
		145
		146	#if HAVE_ST_GEN
		147	# define ST_GEN PL_statcache.st_gen
		148	#else
		149	# define ST_GEN 0
		150	#endif
		151
		152	#include "schmorp.h"
		153
		154	#if HAVE_EVENTFD
		155	# include <sys/eventfd.h>
		156	#endif
		157
		158	#if HAVE_TIMERFD
		159	# include <sys/timerfd.h>
		160	#endif
		161
		162	#if HAVE_RLIMITS
		163	#include <sys/time.h>
		164	#include <sys/resource.h>
		165	#endif
		166
103	typedef SV SV8; /* byte-sv, used for argument-checking */	167	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	168	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	169	typedef int aio_wfd; /* write file descriptor */
106		170
107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	171	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108		172
109	#define EIO_REQ_MEMBERS \	173	#define EIO_REQ_MEMBERS \
110	SV *callback; \	174	SV *callback; \
111	SV *sv1, *sv2; \	175	SV *sv1, *sv2; \
		176	SV *sv3, *sv4; \
112	STRLEN stroffset; \	177	STRLEN stroffset; \
113	SV *self;	178	SV *self;
114		179
115	#define EIO_NO_WRAPPERS 1	180	#define EIO_NO_WRAPPERS 1
116		181
117	#include "libeio/config.h"
118	#include "libeio/eio.h"	182	#include "libeio/eio.h"
119		183
120	static int req_invoke (eio_req *req);	184	static int req_invoke (eio_req *req);
121	#define EIO_FINISH(req) req_invoke (req)	185	#define EIO_FINISH(req) req_invoke (req)
122	static void req_destroy (eio_req *grp);	186	static void req_destroy (eio_req *grp);
123	#define EIO_DESTROY(req) req_destroy (req)	187	#define EIO_DESTROY(req) req_destroy (req)
124		188
125	#include "libeio/eio.c"	189	#include "libeio/eio.c"
126		190
127	/* Linux/others */
128	#ifndef O_ASYNC
129	# define O_ASYNC 0
130	#endif
131	#ifndef O_DIRECT
132	# define O_DIRECT 0
133	#endif
134	#ifndef O_NOATIME
135	# define O_NOATIME 0
136	#endif
137
138	/* POSIX */
139	#ifndef O_CLOEXEC
140	# define O_CLOEXEC 0
141	#endif
142	#ifndef O_NOFOLLOW
143	# define O_NOFOLLOW 0
144	#endif
145	#ifndef O_NOCTTY
146	# define O_NOCTTY 0
147	#endif
148	#ifndef O_NONBLOCK
149	# define O_NONBLOCK 0
150	#endif
151	#ifndef O_EXEC
152	# define O_EXEC 0
153	#endif
154	#ifndef O_SEARCH
155	# define O_SEARCH 0
156	#endif
157	#ifndef O_DIRECTORY
158	# define O_DIRECTORY 0
159	#endif
160	#ifndef O_DSYNC
161	# define O_DSYNC 0
162	#endif
163	#ifndef O_RSYNC
164	# define O_RSYNC 0
165	#endif
166	#ifndef O_SYNC
167	# define O_SYNC 0
168	#endif
169	#ifndef O_TTY_INIT
170	# define O_TTY_INIT 0
171	#endif
172
173	#ifndef POSIX_FADV_NORMAL
174	# define POSIX_FADV_NORMAL 0
175	#endif
176	#ifndef POSIX_FADV_SEQUENTIAL
177	# define POSIX_FADV_SEQUENTIAL 0
178	#endif
179	#ifndef POSIX_FADV_RANDOM
180	# define POSIX_FADV_RANDOM 0
181	#endif
182	#ifndef POSIX_FADV_NOREUSE
183	# define POSIX_FADV_NOREUSE 0
184	#endif
185	#ifndef POSIX_FADV_WILLNEED
186	# define POSIX_FADV_WILLNEED 0
187	#endif
188	#ifndef POSIX_FADV_DONTNEED
189	# define POSIX_FADV_DONTNEED 0
190	#endif
191
192	#if !HAVE_POSIX_FADVISE	191	#if !HAVE_POSIX_FADVISE
193	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
194	#endif	193	#endif
195		194
196	#ifndef POSIX_MADV_NORMAL
197	# define POSIX_MADV_NORMAL 0
198	#endif
199	#ifndef POSIX_MADV_SEQUENTIAL
200	# define POSIX_MADV_SEQUENTIAL 0
201	#endif
202	#ifndef POSIX_MADV_RANDOM
203	# define POSIX_MADV_RANDOM 0
204	#endif
205	#ifndef POSIX_MADV_WILLNEED
206	# define POSIX_MADV_WILLNEED 0
207	#endif
208	#ifndef POSIX_MADV_DONTNEED
209	# define POSIX_MADV_DONTNEED 0
210	#endif
211
212	#if !HAVE_POSIX_MADVISE	195	#if !HAVE_POSIX_MADVISE
213	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	196	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
214	#endif
215
216	#ifndef PROT_NONE
217	# define PROT_NONE 0
218	#endif
219	#ifndef PROT_READ
220	# define PROT_READ 0
221	#endif
222	#ifndef PROT_WRITE
223	# define PROT_READ 0
224	#endif
225	#ifndef PROT_EXEC
226	# define PROT_EXEC 0
227	#endif
228
229	#ifndef ST_RDONLY
230	# define ST_RDONLY 0
231	#endif
232	#ifndef ST_NOSUID
233	# define ST_NOSUID 0
234	#endif
235	#ifndef ST_NODEV
236	# define ST_NODEV 0
237	#endif
238	#ifndef ST_NOEXEC
239	# define ST_NOEXEC 0
240	#endif
241	#ifndef ST_SYNCHRONOUS
242	# define ST_SYNCHRONOUS 0
243	#endif
244	#ifndef ST_MANDLOCK
245	# define ST_MANDLOCK 0
246	#endif
247	#ifndef ST_WRITE
248	# define ST_WRITE 0
249	#endif
250	#ifndef ST_APPEND
251	# define ST_APPEND 0
252	#endif
253	#ifndef ST_IMMUTABLE
254	# define ST_IMMUTABLE 0
255	#endif
256	#ifndef ST_NOATIME
257	# define ST_NOATIME 0
258	#endif
259	#ifndef ST_NODIRATIME
260	# define ST_NODIRATIME 0
261	#endif
262	#ifndef ST_RELATIME
263	# define ST_RELATIME 0
264	#endif
265
266	#ifndef S_IFIFO
267	# define S_IFIFO 0
268	#endif
269	#ifndef S_IFCHR
270	# define S_IFCHR 0
271	#endif
272	#ifndef S_IFBLK
273	# define S_IFBLK 0
274	#endif
275	#ifndef S_IFLNK
276	# define S_IFLNK 0
277	#endif
278	#ifndef S_IFREG
279	# define S_IFREG 0
280	#endif
281	#ifndef S_IFDIR
282	# define S_IFDIR 0
283	#endif
284	#ifndef S_IFWHT
285	# define S_IFWHT 0
286	#endif
287	#ifndef S_IFSOCK
288	# define S_IFSOCK 0
289	#endif	197	#endif
290		198
291	#ifndef MAP_ANONYMOUS	199	#ifndef MAP_ANONYMOUS
292	# ifdef MAP_ANON	200	# ifdef MAP_ANON
293	# define MAP_ANONYMOUS MAP_ANON	201	# define MAP_ANONYMOUS MAP_ANON
294	# else	202	# else
295	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	203	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
296	# endif	204	# endif
297	#endif	205	#endif
298	#ifndef MAP_HUGETLB
299	# define MAP_HUGETLB 0
300	#endif
301	#ifndef MAP_LOCKED
302	# define MAP_LOCKED 0
303	#endif
304	#ifndef MAP_NORESERVE
305	# define MAP_NORESERVE 0
306	#endif
307	#ifndef MAP_POPULATE
308	# define MAP_POPULATE 0
309	#endif
310	#ifndef MAP_NONBLOCK
311	# define MAP_NONBLOCK 0
312	#endif
313		206
314	#ifndef makedev	207	#ifndef makedev
315	# define makedev(maj,min) (((maj) << 8) | (min))	208	# define makedev(maj,min) (((maj) << 8) | (min))
316	#endif	209	#endif
317	#ifndef major	210	#ifndef major
…		…
319	#endif	212	#endif
320	#ifndef minor	213	#ifndef minor
321	# define minor(dev) ((dev) & 0xff)	214	# define minor(dev) ((dev) & 0xff)
322	#endif	215	#endif
323		216
		217	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		218	#ifdef __sun
324	#ifndef PAGESIZE	219	# undef PAGESIZE
		220	#endif
		221
		222	#if PAGESIZE <= 0
325	# define PAGESIZE sysconf (_SC_PAGESIZE)	223	# define PAGESIZE sysconf (_SC_PAGESIZE)
326	#endif	224	#endif
		225
		226	/*****************************************************************************/
		227
		228	#if !_POSIX_MAPPED_FILES
		229	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		230	# define munmap(addr,length) EIO_ENOSYS ()
		231	#endif
		232
		233	#if !_POSIX_MEMORY_PROTECTION
		234	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		235	#endif
		236
		237	#if !MREMAP_MAYMOVE
		238	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		239	#endif
		240
		241	#define FOREIGN_MAGIC PERL_MAGIC_ext
		242
		243	static int ecb_cold
		244	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		245	{
		246	int old_errno = errno;
		247	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		248	errno = old_errno;
		249
		250	mg->mg_obj = 0; /* just in case */
		251
		252	SvREADONLY_off (sv);
		253
		254	if (SvPVX (sv) != mg->mg_ptr)
		255	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		256
		257	SvCUR_set (sv, 0);
		258	SvPVX (sv) = 0;
		259	SvOK_off (sv);
		260
		261	return 0;
		262	}
		263
		264	static MGVTBL mmap_vtbl = {
		265	0, 0, 0, 0, mmap_free
		266	};
		267
		268	static int ecb_cold
		269	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		270	{
		271	free (mg->mg_ptr);
		272	mg->mg_obj = 0; /* just in case */
		273
		274	SvREADONLY_off (sv);
		275
		276	if (SvPVX (sv) != mg->mg_ptr)
		277	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		278
		279	SvCUR_set (sv, 0);
		280	SvPVX (sv) = 0;
		281	SvOK_off (sv);
		282
		283	return 0;
		284	}
		285
		286	static MGVTBL sysfree_vtbl = {
		287	0, 0, 0, 0, sysfree_free
		288	};
		289
		290	/*****************************************************************************/
		291
		292	/* helper: set scalar to foreign ptr with custom free */
		293	static void
		294	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		295	{
		296	sv_force_normal (sv);
		297
		298	/* we store the length in mg_obj, as namlen is I32 :/ */
		299	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		300	->mg_obj = (SV *)length;
		301
		302	SvUPGRADE (sv, SVt_PV); /* nop... */
		303
		304	if (SvLEN (sv))
		305	Safefree (SvPVX (sv));
		306
		307	SvPVX (sv) = (char *)addr;
		308	SvCUR_set (sv, length);
		309	SvLEN_set (sv, 0);
		310	SvPOK_only (sv);
		311	}
		312
		313	static void
		314	sv_clear_foreign (SV *sv)
		315	{
		316	/* todo: iterate over magic and only free ours, but of course */
		317	/* the perl5porters will call that (correct) behaviour buggy */
		318	sv_unmagic (sv, FOREIGN_MAGIC);
		319	}
		320
		321	/*****************************************************************************/
		322
		323	/* defines all sorts of constants to 0 unless they are already defined */
		324	/* also provides const_iv_ and const_niv_ macros for them */
		325	#include "def0.h"
		326
		327	/*****************************************************************************/
		328
		329	static void
		330	fiemap (eio_req *req)
		331	{
		332	req->result = -1;
		333
		334	#if HAVE_FIEMAP
		335	/* assume some c99 */
		336	struct fiemap *fiemap = 0;
		337	size_t end_offset;
		338	int count = req->int3;
		339
		340	req->flags |= EIO_FLAG_PTR1_FREE;
		341
		342	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		343	/* increase in 3.5kb steps */
		344	if (count < 0)
		345	count = 8;
		346
		347	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		348	errno = ENOMEM;
		349	if (!fiemap)
		350	return;
		351
		352	req->ptr1 = fiemap;
		353
		354	fiemap->fm_start = req->offs;
		355	fiemap->fm_length = req->size;
		356	fiemap->fm_flags = req->int2;
		357	fiemap->fm_extent_count = count;
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		360	return;
		361
		362	if (req->int3 >= 0 /* not autosizing */
		363	|| !fiemap->fm_mapped_extents /* no more extents */
		364	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		365	goto done;
		366
		367	/* else we have to loop -
		368	* it would be tempting (actually I tried that first) to just query the
		369	* number of extents needed, but linux often feels like not returning all
		370	* extents, without telling us it left any out. this complicates
		371	* this quite a bit.
		372	*/
		373
		374	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		375
		376	for (;;)
		377	{
		378	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		379	char scratch[3072];
		380	struct fiemap *incmap = (struct fiemap *)scratch;
		381
		382	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		383	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		384	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		385	incmap->fm_flags = fiemap->fm_flags;
		386	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		387
		388	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		389	return;
		390
		391	if (!incmap->fm_mapped_extents)
		392	goto done;
		393
		394	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		395	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		396	errno = ENOMEM;
		397	if (!fiemap)
		398	return;
		399
		400	req->ptr1 = fiemap;
		401
		402	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		403	{
		404	struct fiemap_extent *e = incmap->fm_extents + count;
		405
		406	if (e->fe_logical + e->fe_length >= end_offset)
		407	goto done;
		408
		409	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		410
		411	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		412	goto done;
		413
		414	}
		415	}
		416
		417	done:
		418	req->result = 0;
		419
		420	#else
		421	errno = ENOSYS;
		422	#endif
		423	}
		424
		425	/*****************************************************************************/
		426
		427	static int close_fd; /* dummy fd to close fds via dup2 */
327		428
328	enum {	429	enum {
329	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	430	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
330	};	431	};
331		432
332	typedef eio_req *aio_req;	433	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	434	typedef eio_req *aio_req_ornot;
		435	typedef eio_wd aio_wd;
334		436
335	static SV *on_next_submit;	437	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	438	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	439	static int max_outstanding;
338		440
339	static s_epipe respipe;	441	static s_epipe respipe;
340		442
341	static void req_destroy (aio_req req);	443	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	444	static void req_cancel (aio_req req);
343		445
344	static void want_poll (void)	446	static void
		447	want_poll (void)
345	{	448	{
346	/* write a dummy byte to the pipe so fh becomes ready */	449	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	450	s_epipe_signal (&respipe);
348	}	451	}
349		452
350	static void done_poll (void)	453	static void
		454	done_poll (void)
351	{	455	{
352	/* read any signals sent by the worker threads */	456	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	457	s_epipe_drain (&respipe);
354	}	458	}
355		459
356	/* must be called at most once */	460	/* must be called at most once */
		461	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	462	req_sv (aio_req req, HV *stash)
358	{	463	{
359	if (!req->self)	464	if (!req->self)
360	{	465	{
361	req->self = (SV *)newHV ();	466	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	467	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	468	}
364		469
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	470	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	471	}
367		472
368	static aio_req SvAIO_REQ (SV *sv)	473	static SV *
		474	newSVaio_wd (aio_wd wd)
		475	{
		476	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		477	}
		478
		479	static aio_req
		480	SvAIO_REQ (SV *sv)
369	{	481	{
370	MAGIC *mg;	482	MAGIC *mg;
371		483
372	if (!SvROK (sv)	484	if (!SvROK (sv)
		485	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	486	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	487	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	488	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	489	croak ("object of class IO::AIO::REQ expected");
377		490
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	491	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		492
380	return mg ? (aio_req)mg->mg_ptr : 0;	493	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	494	}
382		495
		496	static aio_wd
		497	SvAIO_WD (SV *sv)
		498	{
		499	if (!SvROK (sv)
		500	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		501	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		502	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		503
		504	return (aio_wd)(long)SvIVX (SvRV (sv));
		505	}
		506
		507	static SV *
		508	newmortalFH (int fd, int flags)
		509	{
		510	if (fd < 0)
		511	return &PL_sv_undef;
		512
		513	GV *gv = (GV *)sv_newmortal ();
		514	char sym[64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		518	gv_init (gv, aio_stash, sym, symlen, 0);
		519
		520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	fd
		526	);
		527
		528	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		529	? (SV *)gv : &PL_sv_undef;
		530	}
		531
		532	static void
383	static void aio_grp_feed (aio_req grp)	533	aio_grp_feed (aio_req grp)
384	{	534	{
385	if (grp->sv2 && SvOK (grp->sv2))	535	if (grp->sv2 && SvOK (grp->sv2))
386	{	536	{
387	dSP;	537	dSP;
388		538
…		…
396	FREETMPS;	546	FREETMPS;
397	LEAVE;	547	LEAVE;
398	}	548	}
399	}	549	}
400		550
		551	static void
401	static void req_submit (eio_req *req)	552	req_submit (eio_req *req)
402	{	553	{
403	eio_submit (req);	554	eio_submit (req);
404		555
405	if (expect_false (on_next_submit))	556	if (expect_false (on_next_submit))
406	{	557	{
…		…
413	PUTBACK;	564	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	565	call_sv (cb, G_DISCARD | G_EVAL);
415	}	566	}
416	}	567	}
417		568
		569	static int
418	static int req_invoke (eio_req *req)	570	req_invoke (eio_req *req)
419	{	571	{
420	if (req->flags & FLAG_SV2_RO_OFF)	572	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	573	SvREADONLY_off (req->sv2);
422		574
423	if (!EIO_CANCELLED (req) && req->callback)	575	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	596	SvREADONLY_on (sv_result);
445	}	597	}
446		598
447	switch (req->type)	599	switch (req->type)
448	{	600	{
		601	case EIO_WD_OPEN:
		602	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		603	break;
		604
449	case EIO_READDIR:	605	case EIO_READDIR:
450	{	606	{
451	SV *rv = &PL_sv_undef;	607	SV *rv = &PL_sv_undef;
452		608
453	if (req->result >= 0)	609	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	662	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	663	}
508	break;	664	break;
509		665
510	case EIO_OPEN:	666	case EIO_OPEN:
511	{	667	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;	668	break;
540		669
541	case EIO_STATVFS:	670	case EIO_STATVFS:
542	case EIO_FSTATVFS:	671	case EIO_FSTATVFS:
543	{	672	{
…		…
546	#ifndef _WIN32	675	#ifndef _WIN32
547	if (req->result >= 0)	676	if (req->result >= 0)
548	{	677	{
549	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	678	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
550	HV *hv = newHV ();	679	HV *hv = newHV ();
		680	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		681	* chooses to make it a struct.
		682	*/
		683	unsigned long fsid = 0;
		684	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
551		685
552	rv = sv_2mortal (newRV_noinc ((SV *)hv));	686	rv = sv_2mortal (newRV_noinc ((SV *)hv));
553		687
554	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	688	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
555	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	689	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
557	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	691	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
558	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	692	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
559	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	693	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
560	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	694	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
561	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	695	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
562	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	696	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
563	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	697	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
564	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	698	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
565	}	699	}
566	#endif	700	#endif
567		701
…		…
595	break;	729	break;
596		730
597	case EIO_STAT:	731	case EIO_STAT:
598	case EIO_LSTAT:	732	case EIO_LSTAT:
599	case EIO_FSTAT:	733	case EIO_FSTAT:
600	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	734	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		735
601	PL_laststatval = req->result;	736	if (!(PL_laststatval = req->result))
602	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	737	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
603	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	738	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		739
604	PUSHs (sv_result);	740	PUSHs (sv_result);
		741	break;
		742
		743	case EIO_SEEK:
		744	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
605	break;	745	break;
606		746
607	case EIO_READ:	747	case EIO_READ:
608	{	748	{
609	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	749	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
612	SvSETMAGIC (req->sv2);	752	SvSETMAGIC (req->sv2);
613	PUSHs (sv_result);	753	PUSHs (sv_result);
614	}	754	}
615	break;	755	break;
616		756
		757	case EIO_SLURP:
		758	{
		759	if (req->result >= 0)
		760	{
		761	/* if length was originally not known, we steal the malloc'ed memory */
		762	if (req->flags & EIO_FLAG_PTR2_FREE)
		763	{
		764	req->flags &= ~EIO_FLAG_PTR2_FREE;
		765	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		766	}
		767	else
		768	{
		769	SvCUR_set (req->sv2, req->result);
		770	*SvEND (req->sv2) = 0;
		771	SvPOK_only (req->sv2);
		772	}
		773
		774	SvSETMAGIC (req->sv2);
		775	}
		776
		777	PUSHs (sv_result);
		778	}
		779	break;
		780
		781	case EIO_CUSTOM:
		782	if (req->feed == fiemap)
		783	{
		784	#if HAVE_FIEMAP
		785	if (!req->result)
		786	{
		787	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		788
		789	if (fiemap->fm_extent_count)
		790	{
		791	AV *av = newAV ();
		792	int i;
		793
		794	while (fiemap->fm_mapped_extents)
		795	{
		796	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		797	AV *ext_av = newAV ();
		798
		799	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		800	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		801	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		802	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		803
		804	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		805	}
		806
		807	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		808	}
		809	else
		810	{
		811	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		812	PUSHs (sv_result);
		813	}
		814	}
		815	#endif
		816	}
		817	else
		818	PUSHs (sv_result);
		819	break;
		820
617	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	821	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
618	if (req->result > 0)	822	if (req->result > 0)
619	SvIV_set (sv_result, 0);	823	SvIV_set (sv_result, 0);
620	/* FALLTHROUGH */	824	/* FALLTHROUGH */
621		825
…		…
642	}	846	}
643		847
644	return !!SvTRUE (ERRSV);	848	return !!SvTRUE (ERRSV);
645	}	849	}
646		850
		851	static void
647	static void req_destroy (aio_req req)	852	req_destroy (aio_req req)
648	{	853	{
649	if (req->self)	854	if (req->self)
650	{	855	{
651	sv_unmagic (req->self, PERL_MAGIC_ext);	856	sv_unmagic (req->self, PERL_MAGIC_ext);
652	SvREFCNT_dec (req->self);	857	SvREFCNT_dec (req->self);
653	}	858	}
654		859
655	SvREFCNT_dec (req->sv1);	860	SvREFCNT_dec (req->sv1);
656	SvREFCNT_dec (req->sv2);	861	SvREFCNT_dec (req->sv2);
		862	SvREFCNT_dec (req->sv3);
		863	SvREFCNT_dec (req->sv4);
657	SvREFCNT_dec (req->callback);	864	SvREFCNT_dec (req->callback);
658		865
659	Safefree (req);	866	free (req);
660	}	867	}
661		868
		869	static void
662	static void req_cancel_subs (aio_req grp)	870	req_cancel_subs (aio_req grp)
663	{	871	{
664	if (grp->type != EIO_GROUP)	872	if (grp->type != EIO_GROUP)
665	return;	873	return;
666		874
667	SvREFCNT_dec (grp->sv2);	875	SvREFCNT_dec (grp->sv2);
668	grp->sv2 = 0;	876	grp->sv2 = 0;
669		877
670	eio_grp_cancel (grp);	878	eio_grp_cancel (grp);
671	}	879	}
672		880
		881	static void ecb_cold
673	static void create_respipe (void)	882	create_respipe (void)
674	{	883	{
675	if (s_epipe_renew (&respipe))	884	if (s_epipe_renew (&respipe))
676	croak ("IO::AIO: unable to initialize result pipe");	885	croak ("IO::AIO: unable to initialize result pipe");
677	}	886	}
678		887
679	static void poll_wait (void)	888	static void
		889	poll_wait (void)
680	{	890	{
681	while (eio_nreqs ())	891	while (eio_nreqs ())
682	{	892	{
683	int size;	893	int size;
684		894
685	X_LOCK (reslock);	895	X_LOCK (EIO_POOL->reslock);
686	size = res_queue.size;	896	size = EIO_POOL->res_queue.size;
687	X_UNLOCK (reslock);	897	X_UNLOCK (EIO_POOL->reslock);
688		898
689	if (size)	899	if (size)
690	return;	900	return;
691		901
692	etp_maybe_start_thread ();	902	etp_maybe_start_thread (EIO_POOL);
693		903
694	s_epipe_wait (&respipe);	904	s_epipe_wait (&respipe);
695	}	905	}
696	}	906	}
697		907
698	static int poll_cb (void)	908	static int
		909	poll_cb (void)
699	{	910	{
700	for (;;)	911	for (;;)
701	{	912	{
702	int res = eio_poll ();	913	int res = eio_poll ();
703		914
…		…
720	croak ("IO::AIO: unable to initialise eio library");	931	croak ("IO::AIO: unable to initialise eio library");
721	}	932	}
722		933
723	/*****************************************************************************/	934	/*****************************************************************************/
724		935
725	#if !_POSIX_MAPPED_FILES	936	static SV *
726	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
727	# define munmap(addr,length) (errno = ENOSYS, -1)
728	#endif
729
730	#if !_POSIX_MEMORY_PROTECTION
731	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
732	# define PROT_NONE 0
733	# define PROT_WRITE 0
734	# define MAP_PRIVATE 0
735	# define MAP_SHARED 0
736	# define MAP_FIXED 0
737	#endif
738
739	#define MMAP_MAGIC PERL_MAGIC_ext
740
741	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
742	{
743	int old_errno = errno;
744	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
745	errno = old_errno;
746
747	mg->mg_obj = 0; /* just in case */
748
749	SvREADONLY_off (sv);
750
751	if (SvPVX (sv) != mg->mg_ptr)
752	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
753
754	SvCUR_set (sv, 0);
755	SvPVX (sv) = 0;
756	SvOK_off (sv);
757
758	return 0;
759	}
760
761	static MGVTBL mmap_vtbl = {
762	0, 0, 0, 0, mmap_free
763	};
764
765	/*****************************************************************************/
766
767	static SV * get_cb (SV *cb_sv)	937	get_cb (SV *cb_sv)
768	{	938	{
769	SvGETMAGIC (cb_sv);	939	SvGETMAGIC (cb_sv);
770	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	940	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
771	}	941	}
772		942
		943	static aio_req ecb_noinline
		944	dreq (SV *callback)
		945	{
		946	SV *cb_cv;
		947	aio_req req;
		948	int req_pri = next_pri;
		949	next_pri = EIO_PRI_DEFAULT;
		950
		951	cb_cv = get_cb (callback);
		952
		953	req = calloc (sizeof (*req), 1);
		954	if (!req)
		955	croak ("out of memory during eio_req allocation");
		956
		957	req->callback = SvREFCNT_inc (cb_cv);
		958	req->pri = req_pri;
		959
		960	return req;
		961	}
		962
773	#define dREQ \	963	#define dREQ \
774	SV *cb_cv; \	964	aio_req req = dreq (callback); \
775	aio_req req; \
776	int req_pri = next_pri; \
777	next_pri = EIO_PRI_DEFAULT; \
778	\
779	cb_cv = get_cb (callback); \
780	\
781	Newz (0, req, 1, eio_req); \
782	if (!req) \
783	croak ("out of memory during eio_req allocation"); \
784	\
785	req->callback = SvREFCNT_inc (cb_cv); \
786	req->pri = req_pri
787		965
788	#define REQ_SEND \	966	#define REQ_SEND \
789	PUTBACK; \	967	PUTBACK; \
790	req_submit (req); \	968	req_submit (req); \
791	SPAGAIN; \	969	SPAGAIN; \
792	\	970	\
793	if (GIMME_V != G_VOID) \	971	if (GIMME_V != G_VOID) \
794	XPUSHs (req_sv (req, aio_req_stash));	972	XPUSHs (req_sv (req, aio_req_stash));
795		973
		974	ecb_inline void
		975	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		976	{
		977	if (expect_false (SvROK (path)))
		978	{
		979	SV *rv = SvRV (path);
		980	SV *wdob;
		981
		982	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		983	{
		984	path = AvARRAY (rv)[1];
		985	wdob = AvARRAY (rv)[0];
		986
		987	if (SvOK (wdob))
		988	{
		989	*wd = SvAIO_WD (wdob);
		990	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		991	}
		992	else
		993	*wd = EIO_INVALID_WD;
		994	}
		995	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		996	{
		997	*wd = (aio_wd)(long)SvIVX (rv);
		998	*wdsv = SvREFCNT_inc_NN (rv);
		999	*ptr = ".";
		1000	return; /* path set to "." */
		1001	}
		1002	else
		1003	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		1004	}
		1005
		1006	*pathsv = newSVsv (path);
		1007	*ptr = SvPVbyte_nolen (*pathsv);
		1008	}
		1009
		1010	static void ecb_noinline
		1011	req_set_path1 (aio_req req, SV *path)
		1012	{
		1013	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		1014	}
		1015
		1016	static void ecb_noinline
		1017	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		1018	{
		1019	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		1020
		1021	switch (SvTYPE (rv))
		1022	{
		1023	case SVt_PVIO:
		1024	case SVt_PVLV:
		1025	case SVt_PVGV:
		1026	req->type = type_fh;
		1027	req->sv1 = newSVsv (fh_or_path);
		1028	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1029	break;
		1030
		1031	default:
		1032	req->type = type_path;
		1033	req_set_path1 (req, fh_or_path);
		1034	break;
		1035	}
		1036	}
		1037
		1038	/*****************************************************************************/
		1039
		1040	static void
		1041	ts_set (struct timespec *ts, NV value)
		1042	{
		1043	ts->tv_sec = value;
		1044	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1045	}
		1046
		1047	static NV
		1048	ts_get (const struct timespec *ts)
		1049	{
		1050	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1051	}
		1052
		1053	/*****************************************************************************/
		1054
		1055	XS(boot_IO__AIO) ecb_cold;
		1056
796	MODULE = IO::AIO PACKAGE = IO::AIO	1057	MODULE = IO::AIO PACKAGE = IO::AIO
797		1058
798	PROTOTYPES: ENABLE	1059	PROTOTYPES: ENABLE
799		1060
800	BOOT:	1061	BOOT:
…		…
804	IV iv;	1065	IV iv;
805	} *civ, const_iv[] = {	1066	} *civ, const_iv[] = {
806	# define const_niv(name, value) { # name, (IV) value },	1067	# define const_niv(name, value) { # name, (IV) value },
807	# define const_iv(name) { # name, (IV) name },	1068	# define const_iv(name) { # name, (IV) name },
808	# define const_eio(name) { # name, (IV) EIO_ ## name },	1069	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1070
		1071	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1072	/* the first block can be undef if missing */
		1073	const_iv (ENOSYS)
809	const_iv (EXDEV)	1074	const_iv (EXDEV)
810	const_iv (ENOSYS)	1075	const_iv (EBADR)
		1076
		1077	/* for lseek */
		1078	const_iv (SEEK_DATA)
		1079	const_iv (SEEK_HOLE)
		1080
		1081	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1082	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1083	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1084	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1085	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1086	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1087
		1088	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1089	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1090	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1091	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1092	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1093
		1094	/* the second block will be 0 when missing */
		1095	const_iv (O_ACCMODE)
		1096
811	const_iv (O_RDONLY)	1097	const_iv (O_RDONLY)
812	const_iv (O_WRONLY)	1098	const_iv (O_WRONLY)
813	const_iv (O_RDWR)	1099	const_iv (O_RDWR)
814	const_iv (O_CREAT)	1100	const_iv (O_CREAT)
815	const_iv (O_TRUNC)	1101	const_iv (O_TRUNC)
…		…
828	const_iv (O_SEARCH)	1114	const_iv (O_SEARCH)
829	const_iv (O_DIRECTORY)	1115	const_iv (O_DIRECTORY)
830	const_iv (O_DSYNC)	1116	const_iv (O_DSYNC)
831	const_iv (O_RSYNC)	1117	const_iv (O_RSYNC)
832	const_iv (O_SYNC)	1118	const_iv (O_SYNC)
		1119	const_iv (O_PATH)
		1120	const_iv (O_TMPFILE)
833	const_iv (O_TTY_INIT)	1121	const_iv (O_TTY_INIT)
834		1122
835	const_iv (S_IFIFO)	1123	const_iv (S_IFIFO)
836	const_iv (S_IFCHR)	1124	const_iv (S_IFCHR)
837	const_iv (S_IFBLK)	1125	const_iv (S_IFBLK)
…		…
839	const_iv (S_IFREG)	1127	const_iv (S_IFREG)
840	const_iv (S_IFDIR)	1128	const_iv (S_IFDIR)
841	const_iv (S_IFWHT)	1129	const_iv (S_IFWHT)
842	const_iv (S_IFSOCK)	1130	const_iv (S_IFSOCK)
843	const_iv (S_IFMT)	1131	const_iv (S_IFMT)
844
845	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
846	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
847	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
848	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
849	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
850	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
851
852	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
853	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
854	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
855	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
856	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
857		1132
858	const_iv (ST_RDONLY)	1133	const_iv (ST_RDONLY)
859	const_iv (ST_NOSUID)	1134	const_iv (ST_NOSUID)
860	const_iv (ST_NODEV)	1135	const_iv (ST_NODEV)
861	const_iv (ST_NOEXEC)	1136	const_iv (ST_NOEXEC)
…		…
871	const_iv (PROT_NONE)	1146	const_iv (PROT_NONE)
872	const_iv (PROT_EXEC)	1147	const_iv (PROT_EXEC)
873	const_iv (PROT_READ)	1148	const_iv (PROT_READ)
874	const_iv (PROT_WRITE)	1149	const_iv (PROT_WRITE)
875		1150
876	/*const_iv (MAP_FIXED)*/
877	const_iv (MAP_PRIVATE)	1151	const_iv (MAP_PRIVATE)
878	const_iv (MAP_SHARED)	1152	const_iv (MAP_SHARED)
		1153	const_iv (MAP_FIXED)
879	const_iv (MAP_ANONYMOUS)	1154	const_iv (MAP_ANONYMOUS)
880		1155
881	/* linuxish */	1156	/* linuxish */
882	const_iv (MAP_HUGETLB)
883	const_iv (MAP_LOCKED)	1157	const_iv (MAP_LOCKED)
884	const_iv (MAP_NORESERVE)	1158	const_iv (MAP_NORESERVE)
885	const_iv (MAP_POPULATE)	1159	const_iv (MAP_POPULATE)
886	const_iv (MAP_NONBLOCK)	1160	const_iv (MAP_NONBLOCK)
		1161	const_iv (MAP_GROWSDOWN)
		1162	const_iv (MAP_32BIT)
		1163	const_iv (MAP_HUGETLB)
		1164	const_iv (MAP_STACK)
		1165
		1166	const_iv (MREMAP_MAYMOVE)
		1167	const_iv (MREMAP_FIXED)
		1168
		1169	const_iv (F_DUPFD_CLOEXEC)
		1170
		1171	const_iv (MSG_CMSG_CLOEXEC)
		1172	const_iv (SOCK_CLOEXEC)
		1173
		1174	const_iv (F_OFD_GETLK)
		1175	const_iv (F_OFD_SETLK)
		1176	const_iv (F_OFD_GETLKW)
		1177
		1178	const_iv (FIFREEZE)
		1179	const_iv (FITHAW)
		1180	const_iv (FITRIM)
		1181	const_iv (FICLONE)
		1182	const_iv (FICLONERANGE)
		1183	const_iv (FIDEDUPERANGE)
		1184
		1185	const_iv (FS_IOC_GETFLAGS)
		1186	const_iv (FS_IOC_SETFLAGS)
		1187	const_iv (FS_IOC_GETVERSION)
		1188	const_iv (FS_IOC_SETVERSION)
		1189	const_iv (FS_IOC_FIEMAP)
		1190	const_iv (FS_IOC_FSGETXATTR)
		1191	const_iv (FS_IOC_FSSETXATTR)
		1192	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1193	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1195
		1196	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1197
		1198	const_iv (FS_SECRM_FL)
		1199	const_iv (FS_UNRM_FL)
		1200	const_iv (FS_COMPR_FL)
		1201	const_iv (FS_SYNC_FL)
		1202	const_iv (FS_IMMUTABLE_FL)
		1203	const_iv (FS_APPEND_FL)
		1204	const_iv (FS_NODUMP_FL)
		1205	const_iv (FS_NOATIME_FL)
		1206	const_iv (FS_DIRTY_FL)
		1207	const_iv (FS_COMPRBLK_FL)
		1208	const_iv (FS_NOCOMP_FL)
		1209	const_iv (FS_ENCRYPT_FL)
		1210	const_iv (FS_BTREE_FL)
		1211	const_iv (FS_INDEX_FL)
		1212	const_iv (FS_JOURNAL_DATA_FL)
		1213	const_iv (FS_NOTAIL_FL)
		1214	const_iv (FS_DIRSYNC_FL)
		1215	const_iv (FS_TOPDIR_FL)
		1216	const_iv (FS_FL_USER_MODIFIABLE)
		1217
		1218	const_iv (FS_XFLAG_REALTIME)
		1219	const_iv (FS_XFLAG_PREALLOC)
		1220	const_iv (FS_XFLAG_IMMUTABLE)
		1221	const_iv (FS_XFLAG_APPEND)
		1222	const_iv (FS_XFLAG_SYNC)
		1223	const_iv (FS_XFLAG_NOATIME)
		1224	const_iv (FS_XFLAG_NODUMP)
		1225	const_iv (FS_XFLAG_RTINHERIT)
		1226	const_iv (FS_XFLAG_PROJINHERIT)
		1227	const_iv (FS_XFLAG_NOSYMLINKS)
		1228	const_iv (FS_XFLAG_EXTSIZE)
		1229	const_iv (FS_XFLAG_EXTSZINHERIT)
		1230	const_iv (FS_XFLAG_NODEFRAG)
		1231	const_iv (FS_XFLAG_FILESTREAM)
		1232	const_iv (FS_XFLAG_DAX)
		1233	const_iv (FS_XFLAG_HASATTR)
		1234
		1235	const_iv (FIEMAP_FLAG_SYNC)
		1236	const_iv (FIEMAP_FLAG_XATTR)
		1237	const_iv (FIEMAP_FLAGS_COMPAT)
		1238	const_iv (FIEMAP_EXTENT_LAST)
		1239	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1240	const_iv (FIEMAP_EXTENT_DELALLOC)
		1241	const_iv (FIEMAP_EXTENT_ENCODED)
		1242	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1243	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1244	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1245	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1246	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1247	const_iv (FIEMAP_EXTENT_MERGED)
		1248	const_iv (FIEMAP_EXTENT_SHARED)
		1249
		1250	const_iv (SPLICE_F_MOVE)
		1251	const_iv (SPLICE_F_NONBLOCK)
		1252	const_iv (SPLICE_F_MORE)
		1253	const_iv (SPLICE_F_GIFT)
		1254
		1255	const_iv (EFD_CLOEXEC)
		1256	const_iv (EFD_NONBLOCK)
		1257	const_iv (EFD_SEMAPHORE)
		1258
		1259	const_iv (CLOCK_REALTIME)
		1260	const_iv (CLOCK_MONOTONIC)
		1261	const_iv (CLOCK_BOOTTIME)
		1262	const_iv (CLOCK_REALTIME_ALARM)
		1263	const_iv (CLOCK_BOOTTIME_ALARM)
		1264
		1265	const_iv (TFD_NONBLOCK)
		1266	const_iv (TFD_CLOEXEC)
		1267
		1268	const_iv (TFD_TIMER_ABSTIME)
		1269	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1270
		1271	/* these are libeio constants, and are independent of gendef0 */
		1272	const_eio (SEEK_SET)
		1273	const_eio (SEEK_CUR)
		1274	const_eio (SEEK_END)
887		1275
888	const_eio (MCL_FUTURE)	1276	const_eio (MCL_FUTURE)
889	const_eio (MCL_CURRENT)	1277	const_eio (MCL_CURRENT)
890		1278
891	const_eio (MS_ASYNC)	1279	const_eio (MS_ASYNC)
…		…
897	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1285	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
898	const_eio (SYNC_FILE_RANGE_WRITE)	1286	const_eio (SYNC_FILE_RANGE_WRITE)
899	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1287	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
900		1288
901	const_eio (FALLOC_FL_KEEP_SIZE)	1289	const_eio (FALLOC_FL_KEEP_SIZE)
		1290	const_eio (FALLOC_FL_PUNCH_HOLE)
		1291	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1292	const_eio (FALLOC_FL_ZERO_RANGE)
		1293	const_eio (FALLOC_FL_INSERT_RANGE)
		1294	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1295
		1296	const_eio (RENAME_NOREPLACE)
		1297	const_eio (RENAME_EXCHANGE)
		1298	const_eio (RENAME_WHITEOUT)
902		1299
903	const_eio (READDIR_DENTS)	1300	const_eio (READDIR_DENTS)
904	const_eio (READDIR_DIRS_FIRST)	1301	const_eio (READDIR_DIRS_FIRST)
905	const_eio (READDIR_STAT_ORDER)	1302	const_eio (READDIR_STAT_ORDER)
906	const_eio (READDIR_FOUND_UNKNOWN)	1303	const_eio (READDIR_FOUND_UNKNOWN)
…		…
917	};	1314	};
918		1315
919	aio_stash = gv_stashpv ("IO::AIO" , 1);	1316	aio_stash = gv_stashpv ("IO::AIO" , 1);
920	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1317	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
921	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1318	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1319	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
922		1320
923	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1321	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
924	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1322	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
925		1323
926	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1324	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		1325
		1326	/* allocate dummy pipe fd for aio_close */
		1327	{
		1328	int pipefd [2];
		1329
		1330	if (
		1331	#ifdef _WIN32
		1332	_pipe (pipefd, 1, _O_BINARY) < 0
		1333	#else
		1334	pipe (pipefd) < 0
		1335	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1336	#endif
		1337	|| close (pipefd [1]) < 0
		1338	)
		1339	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1340
		1341	close_fd = pipefd [0];
		1342	}
927		1343
928	reinit ();	1344	reinit ();
929	}	1345	}
930		1346
931	void	1347	void
…		…
973	PROTOTYPE: $	1389	PROTOTYPE: $
974	CODE:	1390	CODE:
975	max_outstanding = maxreqs;	1391	max_outstanding = maxreqs;
976		1392
977	void	1393	void
978	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1394	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
979	PPCODE:	1395	PPCODE:
980	{	1396	{
981	dREQ;	1397	dREQ;
982		1398
		1399	req->type = EIO_WD_OPEN;
		1400	req_set_path1 (req, pathname);
		1401
		1402	REQ_SEND;
		1403	}
		1404
		1405	void
		1406	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1407	PPCODE:
		1408	{
		1409	dREQ;
		1410
983	req->type = EIO_OPEN;	1411	req->type = EIO_OPEN;
984	req->sv1 = newSVsv (pathname);	1412	req_set_path1 (req, pathname);
985	req->ptr1 = SvPVbyte_nolen (req->sv1);
986	req->int1 = flags;	1413	req->int1 = flags;
987	req->int2 = mode;	1414	req->int2 = mode;
988		1415
989	REQ_SEND;	1416	REQ_SEND;
990	}	1417	}
991		1418
992	void	1419	void
993	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1420	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
994	ALIAS:	1421	ALIAS:
995	aio_fsync = EIO_FSYNC	1422	aio_fsync = EIO_FSYNC
996	aio_fdatasync = EIO_FDATASYNC	1423	aio_fdatasync = EIO_FDATASYNC
997	aio_syncfs = EIO_SYNCFS	1424	aio_syncfs = EIO_SYNCFS
998	PPCODE:	1425	PPCODE:
999	{	1426	{
1000	int fd = s_fileno_croak (fh, 0);	1427	int fd = s_fileno_croak (fh, 0);
1001	dREQ;	1428	dREQ;
1002		1429
1003	req->type = ix;	1430	req->type = ix;
1004	req->sv1 = newSVsv (fh);	1431	req->sv1 = newSVsv (fh);
1005	req->int1 = fd;	1432	req->int1 = fd;
1006		1433
1007	REQ_SEND (req);	1434	REQ_SEND;
1008	}	1435	}
1009		1436
1010	void	1437	void
1011	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1438	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1012	PPCODE:	1439	PPCODE:
1013	{	1440	{
1014	int fd = s_fileno_croak (fh, 0);	1441	int fd = s_fileno_croak (fh, 0);
1015	dREQ;	1442	dREQ;
1016		1443
1017	req->type = EIO_SYNC_FILE_RANGE;	1444	req->type = EIO_SYNC_FILE_RANGE;
1018	req->sv1 = newSVsv (fh);	1445	req->sv1 = newSVsv (fh);
1019	req->int1 = fd;	1446	req->int1 = fd;
1020	req->offs = offset;	1447	req->offs = offset;
1021	req->size = nbytes;	1448	req->size = nbytes;
1022	req->int2 = flags;	1449	req->int2 = flags;
1023		1450
1024	REQ_SEND (req);	1451	REQ_SEND;
1025	}	1452	}
1026		1453
1027	void	1454	void
1028	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1455	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1029	PPCODE:	1456	PPCODE:
1030	{	1457	{
1031	int fd = s_fileno_croak (fh, 0);	1458	int fd = s_fileno_croak (fh, 0);
1032	dREQ;	1459	dREQ;
1033		1460
1034	req->type = EIO_FALLOCATE;	1461	req->type = EIO_FALLOCATE;
1035	req->sv1 = newSVsv (fh);	1462	req->sv1 = newSVsv (fh);
1036	req->int1 = fd;	1463	req->int1 = fd;
1037	req->int2 = mode;	1464	req->int2 = mode;
1038	req->offs = offset;	1465	req->offs = offset;
1039	req->size = len;	1466	req->size = len;
1040		1467
1041	REQ_SEND (req);	1468	REQ_SEND;
1042	}	1469	}
1043		1470
1044	void	1471	void
1045	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1472	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1046	PPCODE:	1473	PPCODE:
1047	{	1474	{
1048	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1049	int fd = s_fileno_croak (fh, 0);	1475	int fd = s_fileno_croak (fh, 0);
1050	dREQ;	1476	dREQ;
1051
1052	if (expect_false (close_fd < 0))
1053	{
1054	int pipefd [2];
1055
1056	if (
1057	#ifdef _WIN32
1058	_pipe (pipefd, 1, _O_BINARY) < 0
1059	#else
1060	pipe (pipefd) < 0
1061	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1062	#endif
1063	|| close (pipefd [1]) < 0
1064	)
1065	abort (); /*D*/
1066
1067	close_fd = pipefd [0];
1068	}
1069		1477
1070	req->type = EIO_DUP2;	1478	req->type = EIO_DUP2;
1071	req->int1 = close_fd;	1479	req->int1 = close_fd;
1072	req->sv2 = newSVsv (fh);	1480	req->sv2 = newSVsv (fh);
1073	req->int2 = fd;	1481	req->int2 = fd;
1074		1482
1075	REQ_SEND (req);	1483	REQ_SEND;
1076	}	1484	}
1077		1485
1078	void	1486	void
		1487	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1488	PPCODE:
		1489	{
		1490	int fd = s_fileno_croak (fh, 0);
		1491	dREQ;
		1492
		1493	req->type = EIO_SEEK;
		1494	req->sv1 = newSVsv (fh);
		1495	req->int1 = fd;
		1496	req->offs = SvVAL64 (offset);
		1497	req->int2 = whence;
		1498
		1499	REQ_SEND;
		1500	}
		1501
		1502	void
1079	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1503	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1080	ALIAS:	1504	ALIAS:
1081	aio_read = EIO_READ	1505	aio_read = EIO_READ
1082	aio_write = EIO_WRITE	1506	aio_write = EIO_WRITE
1083	PPCODE:	1507	PPCODE:
1084	{	1508	{
…		…
1100	len = svlen - dataoffset;	1524	len = svlen - dataoffset;
1101	}	1525	}
1102	else	1526	else
1103	{	1527	{
1104	/* read: check type and grow scalar as necessary */	1528	/* read: check type and grow scalar as necessary */
1105	SvUPGRADE (data, SVt_PV);	1529	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1106	svptr = SvGROW (data, len + dataoffset + 1);	1530	svptr = sv_grow (data, len + dataoffset + 1);
		1531	else if (SvCUR (data) < len + dataoffset)
		1532	croak ("length + dataoffset outside of scalar, and cannot grow");
1107	}	1533	}
1108		1534
1109	{	1535	{
1110	dREQ;	1536	dREQ;
1111		1537
…		…
1127	REQ_SEND;	1553	REQ_SEND;
1128	}	1554	}
1129	}	1555	}
1130		1556
1131	void	1557	void
		1558	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1559	ALIAS:
		1560	aio_ioctl = EIO_IOCTL
		1561	aio_fcntl = EIO_FCNTL
		1562	PPCODE:
		1563	{
		1564	int fd = s_fileno_croak (fh, 0);
		1565	char *svptr;
		1566
		1567	if (SvPOK (arg) || !SvNIOK (arg))
		1568	{
		1569	STRLEN svlen;
		1570	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1571	#ifdef IOCPARM_LEN
		1572	STRLEN need = IOCPARM_LEN (request);
		1573	#else
		1574	STRLEN need = 256;
		1575	#endif
		1576
		1577	if (svlen < need)
		1578	svptr = SvGROW (arg, need);
		1579	}
		1580	else
		1581	svptr = (char *)SvIV (arg);
		1582
		1583	{
		1584	dREQ;
		1585
		1586	req->type = ix;
		1587	req->sv1 = newSVsv (fh);
		1588	req->int1 = fd;
		1589	req->int2 = (long)request;
		1590	req->sv2 = SvREFCNT_inc (arg);
		1591	req->ptr2 = svptr;
		1592
		1593	REQ_SEND;
		1594	}
		1595	}
		1596
		1597	void
1132	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1598	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1133	ALIAS:	1599	ALIAS:
1134	aio_readlink = EIO_READLINK	1600	aio_readlink = EIO_READLINK
1135	aio_realpath = EIO_REALPATH	1601	aio_realpath = EIO_REALPATH
1136	PPCODE:	1602	PPCODE:
1137	{	1603	{
1138	dREQ;	1604	dREQ;
1139		1605
1140	req->type = ix;	1606	req->type = ix;
1141	req->sv1 = newSVsv (path);	1607	req_set_path1 (req, pathname);
1142	req->ptr1 = SvPVbyte_nolen (req->sv1);
1143		1608
1144	REQ_SEND;	1609	REQ_SEND;
1145	}	1610	}
1146		1611
1147	void	1612	void
1148	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1613	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1149	PPCODE:	1614	PPCODE:
1150	{	1615	{
1151	int ifd = s_fileno_croak (in_fh , 0);	1616	int ifd = s_fileno_croak (in_fh , 0);
1152	int ofd = s_fileno_croak (out_fh, 1);	1617	int ofd = s_fileno_croak (out_fh, 1);
1153	dREQ;	1618	dREQ;
1154		1619
1155	req->type = EIO_SENDFILE;	1620	req->type = EIO_SENDFILE;
1156	req->sv1 = newSVsv (out_fh);	1621	req->sv1 = newSVsv (out_fh);
1157	req->int1 = ofd;	1622	req->int1 = ofd;
…		…
1162		1627
1163	REQ_SEND;	1628	REQ_SEND;
1164	}	1629	}
1165		1630
1166	void	1631	void
1167	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1632	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1168	PPCODE:	1633	PPCODE:
1169	{	1634	{
1170	int fd = s_fileno_croak (fh, 0);	1635	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1636	dREQ;
1172		1637
1173	req->type = EIO_READAHEAD;	1638	req->type = EIO_READAHEAD;
1174	req->sv1 = newSVsv (fh);	1639	req->sv1 = newSVsv (fh);
1175	req->int1 = fd;	1640	req->int1 = fd;
…		…
1178		1643
1179	REQ_SEND;	1644	REQ_SEND;
1180	}	1645	}
1181		1646
1182	void	1647	void
1183	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1648	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1184	ALIAS:	1649	ALIAS:
1185	aio_stat = EIO_STAT	1650	aio_stat = EIO_STAT
1186	aio_lstat = EIO_LSTAT	1651	aio_lstat = EIO_LSTAT
1187	aio_statvfs = EIO_STATVFS	1652	aio_statvfs = EIO_STATVFS
1188	PPCODE:	1653	PPCODE:
1189	{	1654	{
1190	dREQ;	1655	dREQ;
1191		1656
1192	req->sv1 = newSVsv (fh_or_path);	1657	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1193
1194	if (SvPOK (req->sv1))
1195	{
1196	req->type = ix;
1197	req->ptr1 = SvPVbyte_nolen (req->sv1);
1198	}
1199	else
1200	{
1201	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1202	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1203	}
1204		1658
1205	REQ_SEND;	1659	REQ_SEND;
1206	}	1660	}
		1661
		1662	void
		1663	st_xtime ()
		1664	ALIAS:
		1665	st_atime = 0x01
		1666	st_mtime = 0x02
		1667	st_ctime = 0x04
		1668	st_btime = 0x08
		1669	st_xtime = 0x0f
		1670	PPCODE:
		1671	EXTEND (SP, 4);
		1672	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1673	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1674	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1675	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1676
		1677	void
		1678	st_xtimensec ()
		1679	ALIAS:
		1680	st_atimensec = 0x01
		1681	st_mtimensec = 0x02
		1682	st_ctimensec = 0x04
		1683	st_btimensec = 0x08
		1684	st_xtimensec = 0x0f
		1685	st_btimesec = 0x10
		1686	st_gen = 0x20
		1687	PPCODE:
		1688	EXTEND (SP, 4);
		1689	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1690	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1691	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1692	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1693	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1694	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1207		1695
1208	UV	1696	UV
1209	major (UV dev)	1697	major (UV dev)
1210	ALIAS:	1698	ALIAS:
1211	minor = 1	1699	minor = 1
1212	CODE:	1700	CODE:
1213	RETVAL = ix ? major (dev) : minor (dev);	1701	RETVAL = ix ? minor (dev) : major (dev);
1214	OUTPUT:	1702	OUTPUT:
1215	RETVAL	1703	RETVAL
1216		1704
1217	UV	1705	UV
1218	makedev (UV maj, UV min)	1706	makedev (UV maj, UV min)
…		…
1220	RETVAL = makedev (maj, min);	1708	RETVAL = makedev (maj, min);
1221	OUTPUT:	1709	OUTPUT:
1222	RETVAL	1710	RETVAL
1223		1711
1224	void	1712	void
1225	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1713	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1226	PPCODE:	1714	PPCODE:
1227	{	1715	{
1228	dREQ;	1716	dREQ;
1229		1717
1230	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1718	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1231	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1719	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1232	req->sv1 = newSVsv (fh_or_path);	1720	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1233
1234	if (SvPOK (req->sv1))
1235	{
1236	req->type = EIO_UTIME;
1237	req->ptr1 = SvPVbyte_nolen (req->sv1);
1238	}
1239	else
1240	{
1241	req->type = EIO_FUTIME;
1242	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1243	}
1244		1721
1245	REQ_SEND;	1722	REQ_SEND;
1246	}	1723	}
1247		1724
1248	void	1725	void
1249	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1726	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1250	PPCODE:	1727	PPCODE:
1251	{	1728	{
1252	dREQ;	1729	dREQ;
1253		1730
1254	req->sv1 = newSVsv (fh_or_path);
1255	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1731	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1256		1732	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1257	if (SvPOK (req->sv1))
1258	{
1259	req->type = EIO_TRUNCATE;
1260	req->ptr1 = SvPVbyte_nolen (req->sv1);
1261	}
1262	else
1263	{
1264	req->type = EIO_FTRUNCATE;
1265	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1266	}
1267		1733
1268	REQ_SEND;	1734	REQ_SEND;
1269	}	1735	}
1270		1736
1271	void	1737	void
1272	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1738	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1273	ALIAS:
1274	aio_chmod = EIO_CHMOD
1275	aio_mkdir = EIO_MKDIR
1276	PPCODE:	1739	PPCODE:
1277	{	1740	{
1278	dREQ;	1741	dREQ;
1279		1742
1280	req->int2 = mode;	1743	req->int2 = mode;
1281	req->sv1 = newSVsv (fh_or_path);	1744	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1282
1283	if (SvPOK (req->sv1))
1284	{
1285	req->type = ix;
1286	req->ptr1 = SvPVbyte_nolen (req->sv1);
1287	}
1288	else
1289	{
1290	req->type = EIO_FCHMOD;
1291	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292	}
1293		1745
1294	REQ_SEND;	1746	REQ_SEND;
1295	}	1747	}
1296		1748
1297	void	1749	void
1298	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1750	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1299	PPCODE:	1751	PPCODE:
1300	{	1752	{
1301	dREQ;	1753	dREQ;
1302		1754
1303	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1755	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1304	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1756	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1305	req->sv1 = newSVsv (fh_or_path);	1757	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1306
1307	if (SvPOK (req->sv1))
1308	{
1309	req->type = EIO_CHOWN;
1310	req->ptr1 = SvPVbyte_nolen (req->sv1);
1311	}
1312	else
1313	{
1314	req->type = EIO_FCHOWN;
1315	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1316	}
1317		1758
1318	REQ_SEND;	1759	REQ_SEND;
1319	}	1760	}
1320		1761
1321	void	1762	void
1322	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1763	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1323	PPCODE:	1764	PPCODE:
1324	{	1765	{
1325	dREQ;	1766	dREQ;
1326		1767
1327	req->type = EIO_READDIR;	1768	req->type = EIO_READDIR;
1328	req->sv1 = newSVsv (pathname);
1329	req->ptr1 = SvPVbyte_nolen (req->sv1);
1330	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1769	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1331		1770
1332	if (flags & EIO_READDIR_DENTS)	1771	if (flags & EIO_READDIR_DENTS)
1333	req->int1 |= EIO_READDIR_CUSTOM2;	1772	req->int1 |= EIO_READDIR_CUSTOM2;
1334		1773
		1774	req_set_path1 (req, pathname);
		1775
1335	REQ_SEND;	1776	REQ_SEND;
1336	}	1777	}
1337		1778
1338	void	1779	void
		1780	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1781	PPCODE:
		1782	{
		1783	dREQ;
		1784
		1785	req->type = EIO_MKDIR;
		1786	req->int2 = mode;
		1787	req_set_path1 (req, pathname);
		1788
		1789	REQ_SEND;
		1790	}
		1791
		1792	void
1339	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1793	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1340	ALIAS:	1794	ALIAS:
1341	aio_unlink = EIO_UNLINK	1795	aio_unlink = EIO_UNLINK
1342	aio_rmdir = EIO_RMDIR	1796	aio_rmdir = EIO_RMDIR
1343	aio_readdir = EIO_READDIR	1797	aio_readdir = EIO_READDIR
1344	PPCODE:	1798	PPCODE:
1345	{	1799	{
1346	dREQ;	1800	dREQ;
1347		1801
1348	req->type = ix;	1802	req->type = ix;
1349	req->sv1 = newSVsv (pathname);	1803	req_set_path1 (req, pathname);
1350	req->ptr1 = SvPVbyte_nolen (req->sv1);
1351		1804
1352	REQ_SEND;	1805	REQ_SEND;
1353	}	1806	}
1354		1807
1355	void	1808	void
1356	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1809	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1357	ALIAS:	1810	ALIAS:
1358	aio_link = EIO_LINK	1811	aio_link = EIO_LINK
1359	aio_symlink = EIO_SYMLINK	1812	aio_symlink = EIO_SYMLINK
1360	aio_rename = EIO_RENAME	1813	aio_rename = EIO_RENAME
1361	PPCODE:	1814	PPCODE:
1362	{	1815	{
		1816	eio_wd wd2 = 0;
1363	dREQ;	1817	dREQ;
1364		1818
1365	req->type = ix;	1819	req->type = ix;
1366	req->sv1 = newSVsv (oldpath);	1820	req_set_path1 (req, oldpath);
1367	req->ptr1 = SvPVbyte_nolen (req->sv1);	1821	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1368	req->sv2 = newSVsv (newpath);	1822	req->int3 = (long)wd2;
1369	req->ptr2 = SvPVbyte_nolen (req->sv2);
1370		1823
1371	REQ_SEND;	1824	REQ_SEND;
1372	}	1825	}
1373		1826
1374	void	1827	void
		1828	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	eio_wd wd2 = 0;
		1832	dREQ;
		1833
		1834	req->type = EIO_RENAME;
		1835	req_set_path1 (req, oldpath);
		1836	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1837	req->int2 = flags;
		1838	req->int3 = (long)wd2;
		1839
		1840	REQ_SEND;
		1841	}
		1842
		1843	void
1375	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1844	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1376	PPCODE:	1845	PPCODE:
1377	{	1846	{
1378	dREQ;	1847	dREQ;
1379		1848
1380	req->type = EIO_MKNOD;	1849	req->type = EIO_MKNOD;
1381	req->sv1 = newSVsv (pathname);
1382	req->ptr1 = SvPVbyte_nolen (req->sv1);
1383	req->int2 = (mode_t)mode;	1850	req->int2 = (mode_t)mode;
1384	req->offs = dev;	1851	req->offs = dev;
		1852	req_set_path1 (req, pathname);
1385		1853
1386	REQ_SEND;	1854	REQ_SEND;
1387	}	1855	}
1388		1856
1389	void	1857	void
1390	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1858	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1391	ALIAS:	1859	ALIAS:
1392	aio_mtouch = EIO_MTOUCH	1860	aio_mtouch = EIO_MTOUCH
1393	aio_msync = EIO_MSYNC	1861	aio_msync = EIO_MSYNC
1394	PPCODE:	1862	PPCODE:
1395	{	1863	{
1396	STRLEN svlen;	1864	STRLEN svlen;
1397	char *svptr = SvPVbyte (data, svlen);	1865	char *svptr = SvPVbyte (data, svlen);
1398	UV len = SvUV (length);	1866	UV len = SvUV (length);
		1867
		1868	if (flags < 0)
		1869	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1399		1870
1400	if (offset < 0)	1871	if (offset < 0)
1401	offset += svlen;	1872	offset += svlen;
1402		1873
1403	if (offset < 0 || offset > svlen)	1874	if (offset < 0 || offset > svlen)
…		…
1418	REQ_SEND;	1889	REQ_SEND;
1419	}	1890	}
1420	}	1891	}
1421		1892
1422	void	1893	void
1423	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1894	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1424	PPCODE:	1895	PPCODE:
1425	{	1896	{
1426	STRLEN svlen;	1897	STRLEN svlen;
1427	char *svptr = SvPVbyte (data, svlen);	1898	char *svptr = SvPVbyte (data, svlen);
1428	UV len = SvUV (length);	1899	UV len = SvUV (length);
…		…
1447	REQ_SEND;	1918	REQ_SEND;
1448	}	1919	}
1449	}	1920	}
1450		1921
1451	void	1922	void
1452	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1923	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1453	PPCODE:	1924	PPCODE:
1454	{	1925	{
1455	dREQ;	1926	dREQ;
1456		1927
1457	req->type = EIO_MLOCKALL;	1928	req->type = EIO_MLOCKALL;
…		…
1459		1930
1460	REQ_SEND;	1931	REQ_SEND;
1461	}	1932	}
1462		1933
1463	void	1934	void
		1935	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1936	PPCODE:
		1937	{
		1938	int fd = s_fileno_croak (fh, 0);
		1939	dREQ;
		1940
		1941	req->type = EIO_CUSTOM;
		1942	req->sv1 = newSVsv (fh);
		1943	req->int1 = fd;
		1944
		1945	req->feed = fiemap;
		1946	#if HAVE_FIEMAP
		1947	/* keep our fingers crossed that the next two types are 64 bit */
		1948	req->offs = start;
		1949	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1950	req->int2 = flags;
		1951	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1952	#endif
		1953
		1954	REQ_SEND;
		1955	}
		1956
		1957	void
		1958	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1959	PPCODE:
		1960	{
		1961	char *svptr = 0;
		1962
		1963	sv_clear_foreign (data);
		1964
		1965	if (length) /* known length, directly read into scalar */
		1966	{
		1967	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1968	svptr = sv_grow (data, length + 1);
		1969	else if (SvCUR (data) < length)
		1970	croak ("length outside of scalar, and cannot grow");
		1971	else
		1972	svptr = SvPVbyte_nolen (data);
		1973	}
		1974
		1975	{
		1976	dREQ;
		1977
		1978	req->type = EIO_SLURP;
		1979	req_set_path1 (req, pathname);
		1980	req->offs = offset;
		1981	req->size = length;
		1982	req->sv2 = SvREFCNT_inc (data);
		1983	req->ptr2 = svptr;
		1984
		1985	if (!SvREADONLY (data))
		1986	{
		1987	SvREADONLY_on (data);
		1988	req->flags |= FLAG_SV2_RO_OFF;
		1989	}
		1990
		1991	REQ_SEND;
		1992	}
		1993	}
		1994
		1995	void
1464	aio_busy (double delay, SV *callback=&PL_sv_undef)	1996	aio_busy (double delay, SV *callback = &PL_sv_undef)
1465	PPCODE:	1997	PPCODE:
1466	{	1998	{
1467	dREQ;	1999	dREQ;
1468		2000
1469	req->type = EIO_BUSY;	2001	req->type = EIO_BUSY;
…		…
1471		2003
1472	REQ_SEND;	2004	REQ_SEND;
1473	}	2005	}
1474		2006
1475	void	2007	void
1476	aio_group (SV *callback=&PL_sv_undef)	2008	aio_group (SV *callback = &PL_sv_undef)
1477	PPCODE:	2009	PPCODE:
1478	{	2010	{
1479	dREQ;	2011	dREQ;
1480		2012
1481	req->type = EIO_GROUP;	2013	req->type = EIO_GROUP;
1482		2014
		2015	PUTBACK;
1483	req_submit (req);	2016	req_submit (req);
		2017	SPAGAIN;
		2018
1484	XPUSHs (req_sv (req, aio_grp_stash));	2019	XPUSHs (req_sv (req, aio_grp_stash));
1485	}	2020	}
1486		2021
1487	void	2022	void
1488	aio_nop (SV *callback=&PL_sv_undef)	2023	aio_nop (SV *callback = &PL_sv_undef)
1489	ALIAS:	2024	ALIAS:
1490	aio_nop = EIO_NOP	2025	aio_nop = EIO_NOP
1491	aio_sync = EIO_SYNC	2026	aio_sync = EIO_SYNC
1492	PPCODE:	2027	PPCODE:
1493	{	2028	{
…		…
1497		2032
1498	REQ_SEND;	2033	REQ_SEND;
1499	}	2034	}
1500		2035
1501	int	2036	int
1502	aioreq_pri (int pri = 0)	2037	aioreq_pri (int pri = NO_INIT)
1503	CODE:	2038	CODE:
1504	RETVAL = next_pri;	2039	RETVAL = next_pri;
1505	if (items > 0)	2040	if (items > 0)
1506	{	2041	{
1507	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1597	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2132	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1598	OUTPUT:	2133	OUTPUT:
1599	RETVAL	2134	RETVAL
1600		2135
1601	void	2136	void
1602	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2137	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1603	PPCODE:	2138	PPCODE:
1604	sv_unmagic (scalar, MMAP_MAGIC);	2139	sv_clear_foreign (scalar);
1605	{	2140	{
1606	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2141	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1607	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2142	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1608	if (addr == (void *)-1)	2143	if (addr == (void *)-1)
1609	XSRETURN_NO;	2144	XSRETURN_NO;
1610		2145
1611	sv_force_normal (scalar);	2146	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1612
1613	/* we store the length in mg_obj, as namlen is I32 :/ */
1614	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1615	->mg_obj = (SV *)length;
1616
1617	SvUPGRADE (scalar, SVt_PV); /* nop... */
1618		2147
1619	if (!(prot & PROT_WRITE))	2148	if (!(prot & PROT_WRITE))
1620	SvREADONLY_on (scalar);	2149	SvREADONLY_on (scalar);
1621		2150
1622	if (SvLEN (scalar))
1623	Safefree (SvPVX (scalar));
1624
1625	SvPVX (scalar) = (char *)addr;
1626	SvCUR_set (scalar, length);
1627	SvLEN_set (scalar, 0);
1628	SvPOK_only (scalar);
1629
1630	XSRETURN_YES;	2151	XSRETURN_YES;
1631	}	2152	}
1632		2153
1633	void	2154	void
1634	munmap (SV *scalar)	2155	munmap (SV *scalar)
1635	CODE:	2156	CODE:
1636	sv_unmagic (scalar, MMAP_MAGIC);	2157	sv_clear_foreign (scalar);
		2158
		2159	SV *
		2160	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2161	CODE:
		2162	{
		2163	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2164	void *new;
		2165
		2166	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2167	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2168
		2169	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2170
		2171	RETVAL = &PL_sv_no;
		2172
		2173	if (new != (void *)-1)
		2174	{
		2175	RETVAL = new == (void *)mg->mg_ptr
		2176	? newSVpvn ("0 but true", 10)
		2177	: &PL_sv_yes;
		2178
		2179	mg->mg_ptr = (char *)new;
		2180	mg->mg_obj = (SV *)new_length;
		2181
		2182	SvPVX (scalar) = mg->mg_ptr;
		2183	SvCUR_set (scalar, new_length);
		2184	}
		2185	}
		2186	OUTPUT:
		2187	RETVAL
1637		2188
1638	int	2189	int
1639	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2190	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1640	ALIAS:	2191	ALIAS:
1641	mprotect = 1	2192	mprotect = 1
1642	CODE:	2193	CODE:
1643	{	2194	{
1644	STRLEN svlen;	2195	STRLEN svlen;
1645	void *addr = SvPVbyte (scalar, svlen);	2196	void *addr = SvPVbyte (scalar, svlen);
1646	size_t len = SvUV (length);	2197	STRLEN len = SvUV (length);
1647		2198
1648	if (offset < 0)	2199	if (offset < 0)
1649	offset += svlen;	2200	offset += svlen;
1650		2201
1651	if (offset < 0 || offset > svlen)	2202	if (offset < 0 || offset > svlen)
…		…
1665	}	2216	}
1666	OUTPUT:	2217	OUTPUT:
1667	RETVAL	2218	RETVAL
1668		2219
1669	int	2220	int
1670	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2221	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1671	CODE:	2222	CODE:
1672	{	2223	{
1673	STRLEN svlen;	2224	STRLEN svlen;
1674	void *addr = SvPVbyte (scalar, svlen);	2225	void *addr = SvPVbyte (scalar, svlen);
1675	size_t len = SvUV (length);	2226	size_t len = SvUV (length);
1676		2227
1677	if (offset < 0)	2228	if (offset < 0)
1678	offset += svlen;	2229	offset += svlen;
1679		2230
…		…
1686	addr = (void *)(((intptr_t)addr) + offset);	2237	addr = (void *)(((intptr_t)addr) + offset);
1687	eio_page_align (&addr, &len);	2238	eio_page_align (&addr, &len);
1688	#if _POSIX_MEMLOCK_RANGE	2239	#if _POSIX_MEMLOCK_RANGE
1689	RETVAL = munlock (addr, len);	2240	RETVAL = munlock (addr, len);
1690	#else	2241	#else
1691	RETVAL = ((errno = ENOSYS), -1);	2242	RETVAL = EIO_ENOSYS ();
1692	#endif	2243	#endif
1693	}	2244	}
1694	OUTPUT:	2245	OUTPUT:
1695	RETVAL	2246	RETVAL
1696		2247
…		…
1698	munlockall ()	2249	munlockall ()
1699	CODE:	2250	CODE:
1700	#if _POSIX_MEMLOCK	2251	#if _POSIX_MEMLOCK
1701	munlockall ();	2252	munlockall ();
1702	#else	2253	#else
1703	RETVAL = -1;	2254	RETVAL = EIO_ENOSYS ();
1704	errno = ENOSYS;
1705	#endif	2255	#endif
1706	OUTPUT:	2256	OUTPUT:
1707	RETVAL	2257	RETVAL
		2258
		2259	int
		2260	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2261	CODE:
		2262	{
		2263	#if HAVE_LINUX_SPLICE
		2264	loff_t off_in_, off_out_;
		2265	RETVAL = splice (
		2266	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2267	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2268	length, flags
		2269	);
		2270	#else
		2271	RETVAL = EIO_ENOSYS ();
		2272	#endif
		2273	}
		2274	OUTPUT:
		2275	RETVAL
		2276
		2277	int
		2278	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2279	CODE:
		2280	#if HAVE_LINUX_SPLICE
		2281	RETVAL = tee (rfh, wfh, length, flags);
		2282	#else
		2283	RETVAL = EIO_ENOSYS ();
		2284	#endif
		2285	OUTPUT:
		2286	RETVAL
		2287
		2288	int
		2289	pipesize (aio_rfd rfh, int new_size = -1)
		2290	PROTOTYPE: $;$
		2291	CODE:
		2292	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2293	if (new_size >= 0)
		2294	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2295	else
		2296	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2297	#else
		2298	errno = ENOSYS;
		2299	RETVAL = -1;
		2300	#endif
		2301	OUTPUT:
		2302	RETVAL
		2303
		2304	void
		2305	pipe2 (int flags = 0)
		2306	PROTOTYPE: ;$
		2307	PPCODE:
		2308	{
		2309	int fd[2];
		2310	int res;
		2311
		2312	if (flags)
		2313	#if HAVE_PIPE2
		2314	res = pipe2 (fd, flags);
		2315	#else
		2316	res = (errno = ENOSYS, -1);
		2317	#endif
		2318	else
		2319	res = pipe (fd);
		2320
		2321	if (!res)
		2322	{
		2323	EXTEND (SP, 2);
		2324	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2325	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2326	}
		2327	}
		2328
		2329	void
		2330	eventfd (unsigned int initval = 0, int flags = 0)
		2331	PPCODE:
		2332	{
		2333	int fd;
		2334	#if HAVE_EVENTFD
		2335	fd = eventfd (initval, flags);
		2336	#else
		2337	fd = (errno = ENOSYS, -1);
		2338	#endif
		2339
		2340	XPUSHs (newmortalFH (fd, O_RDWR));
		2341	}
		2342
		2343	void
		2344	timerfd_create (int clockid, int flags = 0)
		2345	PPCODE:
		2346	{
		2347	int fd;
		2348	#if HAVE_TIMERFD
		2349	fd = timerfd_create (clockid, flags);
		2350	#else
		2351	fd = (errno = ENOSYS, -1);
		2352	#endif
		2353
		2354	XPUSHs (newmortalFH (fd, O_RDWR));
		2355	}
		2356
		2357	void
		2358	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2359	PPCODE:
		2360	{
		2361	int fd = s_fileno_croak (fh, 0);
		2362	#if HAVE_TIMERFD
		2363	int res;
		2364	struct itimerspec its, ots;
		2365
		2366	ts_set (&its.it_interval, interval);
		2367	ts_set (&its.it_value , value);
		2368	res = timerfd_settime (fd, flags, &its, &ots);
		2369
		2370	if (!res)
		2371	{
		2372	EXTEND (SP, 2);
		2373	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2374	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2375	}
		2376	#else
		2377	errno = ENOSYS;
		2378	#endif
		2379	}
		2380
		2381	void
		2382	timerfd_gettime (SV *fh)
		2383	PPCODE:
		2384	{
		2385	int fd = s_fileno_croak (fh, 0);
		2386	#if HAVE_TIMERFD
		2387	int res;
		2388	struct itimerspec ots;
		2389	res = timerfd_gettime (fd, &ots);
		2390
		2391	if (!res)
		2392	{
		2393	EXTEND (SP, 2);
		2394	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2395	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2396	}
		2397	#else
		2398	errno = ENOSYS;
		2399	#endif
		2400	}
		2401
		2402	UV
		2403	get_fdlimit ()
		2404	CODE:
		2405	#if HAVE_RLIMITS
		2406	struct rlimit rl;
		2407	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2409	#endif
		2410	XSRETURN_UNDEF;
		2411	OUTPUT:
		2412	RETVAL
		2413
		2414	void
		2415	min_fdlimit (UV limit = 0x7fffffffU)
		2416	CODE:
		2417	{
		2418	#if HAVE_RLIMITS
		2419	struct rlimit rl;
		2420	rlim_t orig_rlim_max;
		2421	UV bit;
		2422
		2423	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2424	goto fail;
		2425
		2426	if (rl.rlim_cur == RLIM_INFINITY)
		2427	XSRETURN_YES;
		2428
		2429	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2430
		2431	if (rl.rlim_cur < limit)
		2432	{
		2433	rl.rlim_cur = limit;
		2434
		2435	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2436	rl.rlim_max = rl.rlim_cur;
		2437	}
		2438
		2439	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2440	XSRETURN_YES;
		2441
		2442	if (errno == EPERM)
		2443	{
		2444	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2445	/* our limit overflows a system-wide limit */
		2446	/* try an adaptive algorithm, but do not lower the hardlimit */
		2447	rl.rlim_max = 0;
		2448	for (bit = 0x40000000U; bit; bit >>= 1)
		2449	{
		2450	rl.rlim_max |= bit;
		2451	rl.rlim_cur = rl.rlim_max;
		2452
		2453	/* nevr decrease the hard limit */
		2454	if (rl.rlim_max < orig_rlim_max)
		2455	break;
		2456
		2457	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2458	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2459	}
		2460
		2461	/* now, raise the soft limit to the max permitted */
		2462	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2463	{
		2464	rl.rlim_cur = rl.rlim_max;
		2465	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2466	errno = EPERM;
		2467	}
		2468	}
		2469	#endif
		2470	fail:
		2471	XSRETURN_UNDEF;
		2472	}
1708		2473
1709	void _on_next_submit (SV *cb)	2474	void _on_next_submit (SV *cb)
1710	CODE:	2475	CODE:
1711	SvREFCNT_dec (on_next_submit);	2476	SvREFCNT_dec (on_next_submit);
1712	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2477	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1713		2478
1714	PROTOTYPES: DISABLE	2479	PROTOTYPES: DISABLE
1715		2480
		2481	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2482
		2483	BOOT:
		2484	{
		2485	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2486	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2487	}
		2488
		2489	void
		2490	DESTROY (SV *self)
		2491	CODE:
		2492	{
		2493	aio_wd wd = SvAIO_WD (self);
		2494	#if HAVE_AT
		2495	{
		2496	SV *callback = &PL_sv_undef;
		2497	dREQ; /* clobbers next_pri :/ */
		2498	next_pri = req->pri; /* restore next_pri */
		2499	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2500	req->type = EIO_WD_CLOSE;
		2501	req->wd = wd;
		2502	REQ_SEND;
		2503	}
		2504	#else
		2505	eio_wd_close_sync (wd);
		2506	#endif
		2507	}
		2508
1716	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2509	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1717		2510
1718	void	2511	void
1719	cancel (aio_req_ornot req)	2512	cancel (aio_req_ornot req)
1720	CODE:	2513	CODE:
1721	eio_cancel (req);	2514	eio_cancel (req);
1722		2515
1723	void	2516	void
1724	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2517	cb (aio_req_ornot req, SV *callback = NO_INIT)
1725	PPCODE:	2518	PPCODE:
1726	{	2519	{
1727	if (GIMME_V != G_VOID)	2520	if (GIMME_V != G_VOID)
1728	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2521	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1729		2522
1730	if (items > 1)	2523	if (items > 1)
1731	{	2524	{
1732	SV *cb_cv =get_cb (callback);	2525	SV *cb_cv = get_cb (callback);
1733		2526
1734	SvREFCNT_dec (req->callback);	2527	SvREFCNT_dec (req->callback);
1735	req->callback = SvREFCNT_inc (cb_cv);	2528	req->callback = SvREFCNT_inc (cb_cv);
1736	}	2529	}
1737	}	2530	}
…		…
1794	limit (aio_req grp, int limit)	2587	limit (aio_req grp, int limit)
1795	CODE:	2588	CODE:
1796	eio_grp_limit (grp, limit);	2589	eio_grp_limit (grp, limit);
1797		2590
1798	void	2591	void
1799	feed (aio_req grp, SV *callback=&PL_sv_undef)	2592	feed (aio_req grp, SV *callback = &PL_sv_undef)
1800	CODE:	2593	CODE:
1801	{	2594	{
1802	SvREFCNT_dec (grp->sv2);	2595	SvREFCNT_dec (grp->sv2);
1803	grp->sv2 = newSVsv (callback);	2596	grp->sv2 = newSVsv (callback);
1804	grp->feed = aio_grp_feed;	2597	grp->feed = aio_grp_feed;

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