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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 2010 UTC vs.
Revision 1.295 by root, Mon Sep 5 00:03:32 2022 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
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	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	20	#include <limits.h>
18	#include <fcntl.h>	21	#include <fcntl.h>
19	#include <sched.h>	22	#include <sched.h>
20		23
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	24	/* the incompetent fool that created musl keeps __linux__, refuses
22	# include <sys/mman.h>	25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
23	#endif	36	#endif
24		37
25	/* perl namespace pollution */	38	/* perl namespace pollution */
26	#undef VERSION	39	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		40
77	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	43	#undef readdir
80	#undef opendir	44	#undef opendir
81	#undef closedir	45	#undef closedir
82		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80	#undef utime
		81
		82	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STATI64
84		84
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	85	#else
91	# define VAL64 NV	86
92	# define SvVAL64 SvNV	87	#include <sys/time.h>
93	# define newSVval64 newSVnv	88	#include <sys/select.h>
		89	#include <sys/wait.h>
		90	#include <unistd.h>
		91	#include <utime.h>
		92	#include <signal.h>
		93
		94	#define EIO_STRUCT_STAT Stat_t
		95
94	#endif	96	#endif
95		97
96	/*****************************************************************************/	98	/*****************************************************************************/
97		99
98	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
106		108
107	/*****************************************************************************/	109	/*****************************************************************************/
108		110
		111	#include "config.h"
		112
		113	#if HAVE_SYS_MKDEV_H
		114	# include <sys/mkdev.h>
		115	#elif HAVE_SYS_SYSMACROS_H
		116	# include <sys/sysmacros.h>
		117	#endif
		118
		119	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		120	# include <sys/mman.h>
		121	#endif
		122
		123	#if HAVE_SYS_UIO_H
		124	# include <sys/uio.h>
		125	#endif
		126
		127	#if HAVE_ST_XTIMENSEC
		128	# define ATIMENSEC PL_statcache.st_atimensec
		129	# define MTIMENSEC PL_statcache.st_mtimensec
		130	# define CTIMENSEC PL_statcache.st_ctimensec
		131	#elif HAVE_ST_XTIMESPEC
		132	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		133	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		134	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		135	#else
		136	# define ATIMENSEC 0
		137	# define MTIMENSEC 0
		138	# define CTIMENSEC 0
		139	#endif
		140
		141	#if HAVE_ST_BIRTHTIMENSEC
		142	# define BTIMESEC PL_statcache.st_birthtime
		143	# define BTIMENSEC PL_statcache.st_birthtimensec
		144	#elif HAVE_ST_BIRTHTIMESPEC
		145	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		146	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		147	#else
		148	# define BTIMESEC 0
		149	# define BTIMENSEC 0
		150	#endif
		151
		152	#if HAVE_ST_GEN
		153	# define ST_GEN PL_statcache.st_gen
		154	#else
		155	# define ST_GEN 0
		156	#endif
		157
		158	#include "schmorp.h"
		159
		160	#if HAVE_EVENTFD
		161	# include <sys/eventfd.h>
		162	#endif
		163
		164	#if HAVE_TIMERFD
		165	# include <sys/timerfd.h>
		166	#endif
		167
		168	#if HAVE_RLIMITS
		169	#include <sys/time.h>
		170	#include <sys/resource.h>
		171	#endif
		172
109	typedef SV SV8; /* byte-sv, used for argument-checking */	173	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	174	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	175	typedef int aio_wfd; /* write file descriptor */
112		176
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	177	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		178
115	#define EIO_REQ_MEMBERS \	179	#define EIO_REQ_MEMBERS \
116	SV *callback; \	180	SV *callback; \
117	SV *sv1, *sv2; \	181	SV *sv1, *sv2; \
		182	SV *sv3, *sv4; \
118	STRLEN stroffset; \	183	STRLEN stroffset; \
119	SV *self;	184	SV *self;
120		185
121	#define EIO_NO_WRAPPERS 1	186	#define EIO_NO_WRAPPERS 1
122		187
123	#include "libeio/eio.h"	188	#include "libeio/eio.h"
124		189
125	#ifndef POSIX_FADV_NORMAL	190	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	191	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	192	static void req_destroy (eio_req *grp);
128	#endif	193	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		194
145	#ifndef ST_NODEV	195	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		196
176	#ifndef MCL_CURRENT	197	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	198	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	199	#endif
179	#ifndef MCL_FUTURE	200
180	# define MCL_FUTURE 0	201	#if !HAVE_POSIX_MADVISE
		202	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	203	#endif
182		204
183	#ifndef MAP_ANONYMOUS	205	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	206	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	207	# define MAP_ANONYMOUS MAP_ANON
186	# else	208	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	209	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	210	# endif
189	#endif	211	#endif
190	#ifndef MAP_HUGETLB
191	# define MAP_HUGETLB 0
192	#endif
193	#ifndef MAP_LOCKED
194	# define MAP_LOCKED 0
195	#endif
196	#ifndef MAP_NORESERVE
197	# define MAP_NORESERVE 0
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif
205		212
		213	#ifndef makedev
		214	# define makedev(maj,min) (((maj) << 8) | (min))
		215	#endif
		216	#ifndef major
		217	# define major(dev) ((dev) >> 8)
		218	#endif
		219	#ifndef minor
		220	# define minor(dev) ((dev) & 0xff)
		221	#endif
		222
		223	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		224	#ifdef __sun
206	#ifndef PAGESIZE	225	# undef PAGESIZE
		226	#endif
		227
		228	#if PAGESIZE <= 0
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	229	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	230	#endif
209		231
210	static int req_invoke (eio_req *req);	232	/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
211	#define EIO_FINISH(req) req_invoke (req)	233	#ifdef __sun
212	static void req_destroy (eio_req *grp);	234	# undef HAVE_SYSCALL
213	#define EIO_DESTROY(req) req_destroy (req)	235	#endif
		236
		237	#if HAVE_SYSCALL
		238	#include <sys/syscall.h>
		239	#else
		240	# define syscall(nr,...) (errno = ENOSYS, -1)
		241	#endif
		242
		243	/*****************************************************************************/
		244
		245	#if !_POSIX_MAPPED_FILES
		246	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		247	# define munmap(addr,length) EIO_ENOSYS ()
		248	#endif
		249
		250	#if !_POSIX_MEMORY_PROTECTION
		251	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		252	#endif
		253
		254	#if !MREMAP_MAYMOVE
		255	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		256	#endif
		257
		258	#define FOREIGN_MAGIC PERL_MAGIC_ext
		259
		260	static int ecb_cold
		261	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		262	{
		263	int old_errno = errno;
		264	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		265	errno = old_errno;
		266
		267	mg->mg_obj = 0; /* just in case */
		268
		269	SvREADONLY_off (sv);
		270
		271	if (SvPVX (sv) != mg->mg_ptr)
		272	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		273
		274	SvCUR_set (sv, 0);
		275	SvPVX (sv) = 0;
		276	SvOK_off (sv);
		277
		278	return 0;
		279	}
		280
		281	static MGVTBL mmap_vtbl = {
		282	0, 0, 0, 0, mmap_free
		283	};
		284
		285	static int ecb_cold
		286	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		287	{
		288	free (mg->mg_ptr);
		289	mg->mg_obj = 0; /* just in case */
		290
		291	SvREADONLY_off (sv);
		292
		293	if (SvPVX (sv) != mg->mg_ptr)
		294	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		295
		296	SvCUR_set (sv, 0);
		297	SvPVX (sv) = 0;
		298	SvOK_off (sv);
		299
		300	return 0;
		301	}
		302
		303	static MGVTBL sysfree_vtbl = {
		304	0, 0, 0, 0, sysfree_free
		305	};
		306
		307	/*****************************************************************************/
		308
		309	/* helper: set scalar to foreign ptr with custom free */
		310	ecb_noinline
		311	static void
		312	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		313	{
		314	sv_force_normal (sv);
		315
		316	/* we store the length in mg_obj, as namlen is I32 :/ */
		317	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		318	->mg_obj = (SV *)length;
		319
		320	SvUPGRADE (sv, SVt_PV); /* nop... */
		321
		322	if (SvLEN (sv))
		323	Safefree (SvPVX (sv));
		324
		325	SvPVX (sv) = (char *)addr;
		326	SvCUR_set (sv, length);
		327	SvLEN_set (sv, 0);
		328	SvPOK_only (sv);
		329	}
		330
		331	static void
		332	sv_clear_foreign (SV *sv)
		333	{
		334	/* todo: iterate over magic and only free ours, but of course */
		335	/* the perl5porters will call that (correct) behaviour buggy */
		336	sv_unmagic (sv, FOREIGN_MAGIC);
		337	}
		338
		339	/*****************************************************************************/
		340
		341	/* defines all sorts of constants to 0 unless they are already defined */
		342	/* also provides const_iv_ and const_niv_ macros for them */
		343	#include "def0.h"
		344
		345	/*****************************************************************************/
		346
		347	static void
		348	fiemap (eio_req *req)
		349	{
		350	req->result = -1;
		351
		352	#if HAVE_FIEMAP
		353	/* assume some c99 */
		354	struct fiemap *fiemap = 0;
		355	size_t end_offset;
		356	int count = req->int3;
		357
		358	req->flags |= EIO_FLAG_PTR1_FREE;
		359
		360	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		361	/* increase in fixed steps */
		362	if (count < 0)
		363	count = 8;
		364
		365	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		366	errno = ENOMEM;
		367	if (!fiemap)
		368	return;
		369
		370	req->ptr1 = fiemap;
		371
		372	fiemap->fm_start = req->offs;
		373	fiemap->fm_length = req->size;
		374	fiemap->fm_flags = req->int2;
		375	fiemap->fm_extent_count = count;
		376
		377	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		378	return;
		379
		380	if (req->int3 >= 0 /* not autosizing */
		381	|| !fiemap->fm_mapped_extents /* no more extents */
		382	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		383	goto done;
		384
		385	/* else we have to loop -
		386	* it would be tempting (actually I tried that first) to just query the
		387	* number of extents needed, but linux often feels like not returning all
		388	* extents, without telling us it left any out. this complicates
		389	* this quite a bit.
		390	*/
		391
		392	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		393
		394	for (;;)
		395	{
		396	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		397	char scratch[3072];
		398	struct fiemap *incmap = (struct fiemap *)scratch;
		399
		400	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		401	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		402	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		403	incmap->fm_flags = fiemap->fm_flags;
		404	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		405
		406	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		407	return;
		408
		409	if (!incmap->fm_mapped_extents)
		410	goto done;
		411
		412	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		413	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		414	errno = ENOMEM;
		415	if (!fiemap)
		416	return;
		417
		418	req->ptr1 = fiemap;
		419
		420	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		421	{
		422	struct fiemap_extent *e = incmap->fm_extents + count;
		423
		424	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		425
		426	if (e->fe_logical >= end_offset)
		427	goto done;
		428
		429	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		430	goto done;
		431
		432	}
		433	}
		434
		435	done:
		436	req->result = 0;
		437
		438	#else
		439	errno = ENOSYS;
		440	#endif
		441	}
		442
		443	/*****************************************************************************/
		444
		445	static int close_fd; /* dummy fd to close fds via dup2 */
		446
		447	#if HAVE_STATX
		448	static struct statx stx;
		449	#define statx_offsetof(member) offsetof (struct statx, member)
		450	#define eio__statx statx
		451	#else
		452	#define statx_offsetof(member) 0
		453	#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
		454	#endif
214		455
215	enum {	456	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	457	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	458	};
218		459
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	460	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	461	typedef eio_req *aio_req_ornot;
		462	typedef eio_wd aio_wd;
223		463
224	static SV *on_next_submit;	464	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	465	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	466	static int max_outstanding;
227		467
228	static s_epipe respipe;	468	static s_epipe respipe;
229		469
230	static void req_destroy (aio_req req);	470	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	471	static void req_cancel (aio_req req);
232		472
233	static void want_poll (void)	473	static void
		474	want_poll (void)
234	{	475	{
235	/* write a dummy byte to the pipe so fh becomes ready */	476	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	477	s_epipe_signal (&respipe);
237	}	478	}
238		479
239	static void done_poll (void)	480	static void
		481	done_poll (void)
240	{	482	{
241	/* read any signals sent by the worker threads */	483	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	484	s_epipe_drain (&respipe);
243	}	485	}
244		486
245	/* must be called at most once */	487	/* must be called at most once */
		488	ecb_noinline
		489	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	490	req_sv (aio_req req, HV *stash)
247	{	491	{
248	if (!req->self)	492	if (!req->self)
249	{	493	{
250	req->self = (SV *)newHV ();	494	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	495	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	496	}
253		497
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	498	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	499	}
256		500
257	static aio_req SvAIO_REQ (SV *sv)	501	static SV *
		502	newSVaio_wd (aio_wd wd)
		503	{
		504	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		505	}
		506
		507	ecb_noinline
		508	static aio_req
		509	SvAIO_REQ (SV *sv)
258	{	510	{
259	MAGIC *mg;	511	MAGIC *mg;
260		512
261	if (!SvROK (sv)	513	if (!SvROK (sv)
		514	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	515	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	516	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	517	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	518	croak ("object of class IO::AIO::REQ expected");
266		519
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	520	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		521
269	return mg ? (aio_req)mg->mg_ptr : 0;	522	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	523	}
271		524
		525	static aio_wd
		526	SvAIO_WD (SV *sv)
		527	{
		528	if (!SvROK (sv)
		529	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		530	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		531	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		532
		533	return (aio_wd)(long)SvIVX (SvRV (sv));
		534	}
		535
		536	static SV *
		537	newmortalFH (int fd, int flags)
		538	{
		539	if (fd < 0)
		540	return &PL_sv_undef;
		541
		542	GV *gv = (GV *)sv_newmortal ();
		543	char sym[64];
		544	int symlen;
		545
		546	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		547	gv_init (gv, aio_stash, sym, symlen, 0);
		548
		549	symlen = snprintf (
		550	sym,
		551	sizeof (sym),
		552	"%s&=%d",
		553	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		554	fd
		555	);
		556
		557	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		558	? (SV *)gv : &PL_sv_undef;
		559	}
		560
		561	static void
272	static void aio_grp_feed (aio_req grp)	562	aio_grp_feed (aio_req grp)
273	{	563	{
274	if (grp->sv2 && SvOK (grp->sv2))	564	if (grp->sv2 && SvOK (grp->sv2))
275	{	565	{
276	dSP;	566	dSP;
277		567
…		…
285	FREETMPS;	575	FREETMPS;
286	LEAVE;	576	LEAVE;
287	}	577	}
288	}	578	}
289		579
		580	ecb_noinline
		581	static void
290	static void req_submit (eio_req *req)	582	req_submit (eio_req *req)
291	{	583	{
292	eio_submit (req);	584	eio_submit (req);
293		585
294	if (expect_false (on_next_submit))	586	if (expect_false (on_next_submit))
295	{	587	{
…		…
302	PUTBACK;	594	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	595	call_sv (cb, G_DISCARD | G_EVAL);
304	}	596	}
305	}	597	}
306		598
		599	static int
307	static int req_invoke (eio_req *req)	600	req_invoke (eio_req *req)
308	{	601	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	602	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	603	SvREADONLY_off (req->sv2);
313		604
314	if (!EIO_CANCELLED (req) && req->callback)	605	if (!EIO_CANCELLED (req) && req->callback)
315	{	606	{
		607	dSP;
		608	static SV *sv_result_cache; /* caches the result integer SV */
		609	SV *sv_result;
		610
316	ENTER;	611	ENTER;
317	SAVETMPS;	612	SAVETMPS;
318	PUSHMARK (SP);	613	PUSHMARK (SP);
319	EXTEND (SP, 1);	614	EXTEND (SP, 1);
320		615
		616	/* do not recreate the result IV from scratch each time */
		617	if (expect_true (sv_result_cache))
		618	{
		619	sv_result = sv_result_cache; sv_result_cache = 0;
		620	SvIV_set (sv_result, req->result);
		621	SvIOK_only (sv_result);
		622	}
		623	else
		624	{
		625	sv_result = newSViv (req->result);
		626	SvREADONLY_on (sv_result);
		627	}
		628
321	switch (req->type)	629	switch (req->type)
322	{	630	{
		631	case EIO_WD_OPEN:
		632	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		633	break;
		634
323	case EIO_READDIR:	635	case EIO_READDIR:
324	{	636	{
325	SV *rv = &PL_sv_undef;	637	SV *rv = &PL_sv_undef;
326		638
327	if (req->result >= 0)	639	if (req->result >= 0)
…		…
380	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	692	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
381	}	693	}
382	break;	694	break;
383		695
384	case EIO_OPEN:	696	case EIO_OPEN:
385	{	697	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
386	/* convert fd to fh */
387	SV *fh = &PL_sv_undef;
388
389	if (req->result >= 0)
390	{
391	GV *gv = (GV *)sv_newmortal ();
392	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
393	char sym [64];
394	int symlen;
395
396	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
397	gv_init (gv, aio_stash, sym, symlen, 0);
398
399	symlen = snprintf (
400	sym,
401	sizeof (sym),
402	"%s&=%d",
403	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
404	(int)req->result
405	);
406
407	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
408	fh = (SV *)gv;
409	}
410
411	PUSHs (fh);
412	}
413	break;	698	break;
414		699
415	case EIO_STATVFS:	700	case EIO_STATVFS:
416	case EIO_FSTATVFS:	701	case EIO_FSTATVFS:
417	{	702	{
418	SV *rv = &PL_sv_undef;	703	SV *rv = &PL_sv_undef;
419		704
		705	#ifndef _WIN32
420	if (req->result >= 0)	706	if (req->result >= 0)
421	{	707	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	708	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	709	HV *hv = newHV ();
		710	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		711	* chooses to make it a struct.
		712	*/
		713	unsigned long fsid = 0;
		714	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
424		715
425	rv = sv_2mortal (newRV_noinc ((SV *)hv));	716	rv = sv_2mortal (newRV_noinc ((SV *)hv));
426		717
427	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	718	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
428	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	719	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
430	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	721	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
431	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	722	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
432	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	723	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
433	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	724	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	725	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	726	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	727	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	728	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	729	}
		730	#endif
439		731
440	PUSHs (rv);	732	PUSHs (rv);
441	}	733	}
442		734
443	break;	735	break;
…		…
459	case EIO_NOP:	751	case EIO_NOP:
460	case EIO_BUSY:	752	case EIO_BUSY:
461	break;	753	break;
462		754
463	case EIO_READLINK:	755	case EIO_READLINK:
		756	case EIO_REALPATH:
464	if (req->result > 0)	757	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	758	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	759	break;
467		760
468	case EIO_STAT:	761	case EIO_STAT:
469	case EIO_LSTAT:	762	case EIO_LSTAT:
470	case EIO_FSTAT:	763	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	764	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		765
472	PL_laststatval = req->result;	766	if (!(PL_laststatval = req->result))
		767	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	768	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	769
		770	PUSHs (sv_result);
		771	break;
		772
		773	case EIO_SEEK:
		774	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
475	break;	775	break;
476		776
477	case EIO_READ:	777	case EIO_READ:
478	{	778	{
479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	779	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480	*SvEND (req->sv2) = 0;	780	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	781	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	782	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	783	PUSHs (sv_result);
484	}	784	}
485	break;	785	break;
486		786
487	case EIO_DUP2:	787	case EIO_SLURP:
		788	{
		789	if (req->result >= 0)
		790	{
		791	/* if length was originally not known, we steal the malloc'ed memory */
		792	if (req->flags & EIO_FLAG_PTR2_FREE)
		793	{
		794	req->flags &= ~EIO_FLAG_PTR2_FREE;
		795	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		796	}
		797	else
		798	{
		799	SvCUR_set (req->sv2, req->result);
		800	*SvEND (req->sv2) = 0;
		801	SvPOK_only (req->sv2);
		802	}
		803
		804	SvSETMAGIC (req->sv2);
		805	}
		806
		807	PUSHs (sv_result);
		808	}
		809	break;
		810
		811	case EIO_CUSTOM:
		812	if (req->feed == fiemap)
		813	{
		814	#if HAVE_FIEMAP
		815	if (!req->result)
		816	{
		817	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		818
		819	if (fiemap->fm_extent_count)
		820	{
		821	AV *av = newAV ();
		822	int i;
		823
		824	while (fiemap->fm_mapped_extents)
		825	{
		826	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		827	AV *ext_av = newAV ();
		828
		829	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		830	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		831	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		832	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		833
		834	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		835	}
		836
		837	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		838	}
		839	else
		840	{
		841	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		842	PUSHs (sv_result);
		843	}
		844	}
		845	#endif
		846	}
		847	else
		848	PUSHs (sv_result);
		849	break;
		850
		851	#if 0
		852	case EIO_CLOSE:
		853	PerlIOUnix_refcnt_dec (req->int1);
		854	break;
		855	#endif
		856
		857	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	858	if (req->result > 0)
489	req->result = 0;	859	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	860	/* FALLTHROUGH */
491		861
492	default:	862	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	863	PUSHs (sv_result);
494	break;	864	break;
495	}	865	}
496		866
497	errno = req->errorno;	867	errno = req->errorno;
498		868
499	PUTBACK;	869	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	870	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	871	SPAGAIN;
502		872
		873	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		874	SvREFCNT_dec (sv_result);
		875	else
		876	sv_result_cache = sv_result;
		877
503	FREETMPS;	878	FREETMPS;
504	LEAVE;	879	LEAVE;
505		880
506	PUTBACK;	881	PUTBACK;
507	}	882	}
508		883
509	return !!SvTRUE (ERRSV);	884	return !!SvTRUE (ERRSV);
510	}	885	}
511		886
		887	static void
512	static void req_destroy (aio_req req)	888	req_destroy (aio_req req)
513	{	889	{
514	if (req->self)	890	if (req->self)
515	{	891	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	892	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	893	SvREFCNT_dec (req->self);
518	}	894	}
519		895
520	SvREFCNT_dec (req->sv1);	896	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	897	SvREFCNT_dec (req->sv2);
		898	SvREFCNT_dec (req->sv3);
		899	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	900	SvREFCNT_dec (req->callback);
523		901
524	Safefree (req);	902	free (req);
525	}	903	}
526		904
		905	static void
527	static void req_cancel_subs (aio_req grp)	906	req_cancel_subs (aio_req grp)
528	{	907	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	908	if (grp->type != EIO_GROUP)
532	return;	909	return;
533		910
534	SvREFCNT_dec (grp->sv2);	911	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	912	grp->sv2 = 0;
536		913
537	eio_grp_cancel (grp);	914	eio_grp_cancel (grp);
538	}	915	}
539		916
		917	ecb_cold
540	static void	918	static void
541	create_respipe (void)	919	create_respipe (void)
542	{	920	{
543	if (s_epipe_renew (&respipe))	921	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	922	croak ("IO::AIO: unable to initialize result pipe");
545	}	923	}
546		924
547	static void poll_wait (void)	925	static void
		926	poll_wait (void)
548	{	927	{
549	while (eio_nreqs ())	928	while (eio_nreqs ())
550	{	929	{
551	int size;	930	int size;
552		931
553	X_LOCK (reslock);	932	X_LOCK (EIO_POOL->reslock);
554	size = res_queue.size;	933	size = EIO_POOL->res_queue.size;
555	X_UNLOCK (reslock);	934	X_UNLOCK (EIO_POOL->reslock);
556		935
557	if (size)	936	if (size)
558	return;	937	return;
559		938
560	etp_maybe_start_thread ();	939	etp_maybe_start_thread (EIO_POOL);
561		940
562	s_epipe_wait (&respipe);	941	s_epipe_wait (&respipe);
563	}	942	}
564	}	943	}
565		944
566	static int poll_cb (void)	945	static int
		946	poll_cb (void)
567	{	947	{
568	for (;;)	948	for (;;)
569	{	949	{
570	int res = eio_poll ();	950	int res = eio_poll ();
571		951
…		…
577		957
578	poll_wait ();	958	poll_wait ();
579	}	959	}
580	}	960	}
581		961
582	static void atfork_child (void)	962	ecb_cold
		963	static void
		964	reinit (void)
583	{	965	{
584	create_respipe ();	966	create_respipe ();
585	}
586		967
587	/*****************************************************************************/	968	if (eio_init (want_poll, done_poll) < 0)
588		969	croak ("IO::AIO: unable to initialise eio library");
589	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591	# define munmap(addr,length) (errno = ENOSYS, -1)
592	#endif
593
594	#define MMAP_MAGIC PERL_MAGIC_ext
595
596	static int
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{
599	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;
602
603	mg->mg_obj = 0; /* just in case */
604
605	SvREADONLY_off (sv);
606	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;
609	SvOK_off (sv);
610
611	return 0;
612	}	970	}
613
614	static MGVTBL mmap_vtbl = {
615	0, 0, 0, 0, mmap_free
616	};
617		971
618	/*****************************************************************************/	972	/*****************************************************************************/
619		973
620	static SV *	974	static SV *
621	get_cb (SV *cb_sv)	975	get_cb (SV *cb_sv)
622	{	976	{
623	SvGETMAGIC (cb_sv);	977	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	978	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	979	}
626		980
		981	ecb_noinline
		982	static aio_req ecb_noinline
		983	dreq (SV *callback)
		984	{
		985	SV *cb_cv;
		986	aio_req req;
		987	int req_pri = next_pri;
		988	next_pri = EIO_PRI_DEFAULT;
		989
		990	cb_cv = get_cb (callback);
		991
		992	req = calloc (sizeof (*req), 1);
		993	if (!req)
		994	croak ("out of memory during eio_req allocation");
		995
		996	req->callback = SvREFCNT_inc (cb_cv);
		997	req->pri = req_pri;
		998
		999	return req;
		1000	}
		1001
627	#define dREQ \	1002	#define dREQ \
628	SV *cb_cv; \	1003	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		1004
642	#define REQ_SEND \	1005	#define REQ_SEND \
643	PUTBACK; \	1006	PUTBACK; \
644	req_submit (req); \	1007	req_submit (req); \
645	SPAGAIN; \	1008	SPAGAIN; \
646	\	1009	\
647	if (GIMME_V != G_VOID) \	1010	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	1011	XPUSHs (req_sv (req, aio_req_stash));
649		1012
		1013	/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
		1014	ecb_inline
		1015	void
		1016	req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		1017	{
		1018	if (expect_false (SvROK (path)))
		1019	{
		1020	SV *rv = SvRV (path);
		1021	SV *wdob;
		1022
		1023	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		1024	{
		1025	path = AvARRAY (rv)[1];
		1026	wdob = AvARRAY (rv)[0];
		1027
		1028	if (SvOK (wdob))
		1029	{
		1030	*wd = SvAIO_WD (wdob);
		1031	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		1032	}
		1033	else
		1034	*wd = EIO_INVALID_WD;
		1035	}
		1036	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		1037	{
		1038	*wd = (aio_wd)(long)SvIVX (rv);
		1039	*wdsv = SvREFCNT_inc_NN (rv);
		1040	*ptr = ".";
		1041	return; /* path set to "." */
		1042	}
		1043	else
		1044	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		1045	}
		1046
		1047	*pathsv = newSVsv (path);
		1048	*ptr = SvPVbyte_nolen (*pathsv);
		1049	}
		1050
		1051	ecb_noinline
		1052	static void
		1053	req_set_path1 (aio_req req, SV *path)
		1054	{
		1055	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		1056	}
		1057
		1058	ecb_noinline
		1059	static void
		1060	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		1061	{
		1062	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		1063
		1064	switch (SvTYPE (rv))
		1065	{
		1066	case SVt_PVIO:
		1067	case SVt_PVLV:
		1068	case SVt_PVGV:
		1069	req->type = type_fh;
		1070	req->sv1 = newSVsv (fh_or_path);
		1071	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1072	break;
		1073
		1074	default:
		1075	req->type = type_path;
		1076	req_set_path1 (req, fh_or_path);
		1077	break;
		1078	}
		1079	}
		1080
		1081	/*****************************************************************************/
		1082
		1083	static void
		1084	ts_set (struct timespec *ts, NV value)
		1085	{
		1086	ts->tv_sec = value;
		1087	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1088	}
		1089
		1090	static NV
		1091	ts_get (const struct timespec *ts)
		1092	{
		1093	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1094	}
		1095
		1096	/*****************************************************************************/
		1097
		1098	/* extract a ref-to-array of strings into a temporary c style string vector */
		1099	static char **
		1100	extract_stringvec (SV *sv, const char *croakmsg)
		1101	{
		1102	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
		1103	croak (croakmsg);
		1104
		1105	AV *av = (AV *)SvRV (sv);
		1106	int i, nelem = av_len (av) + 1;
		1107	char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
		1108
		1109	for (i = 0; i < nelem; ++i)
		1110	{
		1111	SV **e = av_fetch (av, i, 0);
		1112
		1113	if (e && *e)
		1114	vecp[i] = SvPVbyte_nolen (*e);
		1115	else
		1116	vecp[i] = "";
		1117	}
		1118
		1119	vecp[nelem] = 0;
		1120
		1121	return vecp;
		1122	}
		1123
		1124	/*****************************************************************************/
		1125
		1126	XS(boot_IO__AIO) ecb_cold;
		1127
650	MODULE = IO::AIO PACKAGE = IO::AIO	1128	MODULE = IO::AIO PACKAGE = IO::AIO
651		1129
652	PROTOTYPES: ENABLE	1130	PROTOTYPES: ENABLE
653		1131
654	BOOT:	1132	BOOT:
…		…
658	IV iv;	1136	IV iv;
659	} *civ, const_iv[] = {	1137	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	1138	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	1139	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	1140	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1141
		1142	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1143	/* the first block can be undef if missing */
		1144	const_iv (ENOSYS)
663	const_iv (EXDEV)	1145	const_iv (EXDEV)
664	const_iv (ENOSYS)	1146	const_iv (EBADR)
665	const_iv (O_RDONLY)	1147
666	const_iv (O_WRONLY)	1148	/* for lseek */
667	const_iv (O_CREAT)	1149	const_iv (SEEK_DATA)
668	const_iv (O_TRUNC)
669	#ifndef _WIN32
670	const_iv (S_IFIFO)	1150	const_iv (SEEK_HOLE)
671	#endif	1151
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1152	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1153	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1154	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1155	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1156	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1157	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1158
		1159	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1160	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1161	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1162	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1163	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1164
		1165	/* the second block will be 0 when missing */
		1166	const_iv (O_ACCMODE)
		1167
		1168	const_iv (O_RDONLY)
		1169	const_iv (O_WRONLY)
		1170	const_iv (O_RDWR)
		1171	const_iv (O_CREAT)
		1172	const_iv (O_TRUNC)
		1173	const_iv (O_EXCL)
		1174	const_iv (O_APPEND)
		1175
		1176	const_iv (O_ASYNC)
		1177	const_iv (O_DIRECT)
		1178	const_iv (O_NOATIME)
		1179
		1180	const_iv (O_CLOEXEC)
		1181	const_iv (O_NOCTTY)
		1182	const_iv (O_NOFOLLOW)
		1183	const_iv (O_NONBLOCK)
		1184	const_iv (O_EXEC)
		1185	const_iv (O_SEARCH)
		1186	const_iv (O_DIRECTORY)
		1187	const_iv (O_DSYNC)
		1188	const_iv (O_RSYNC)
		1189	const_iv (O_SYNC)
		1190	const_iv (O_PATH)
		1191	const_iv (O_TMPFILE)
		1192	const_iv (O_TTY_INIT)
		1193
		1194	const_iv (S_IFIFO)
		1195	const_iv (S_IFCHR)
		1196	const_iv (S_IFBLK)
		1197	const_iv (S_IFLNK)
		1198	const_iv (S_IFREG)
		1199	const_iv (S_IFDIR)
		1200	const_iv (S_IFWHT)
		1201	const_iv (S_IFSOCK)
		1202	const_iv (S_IFMT)
678		1203
679	const_iv (ST_RDONLY)	1204	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	1205	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	1206	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	1207	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	1212	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	1213	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	1214	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	1215	const_iv (ST_RELATIME)
691		1216
		1217	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	1218	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	1219	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	1220	const_iv (PROT_WRITE)
696		1221
697	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	1222	const_iv (MAP_PRIVATE)
699	const_iv (MAP_SHARED)	1223	const_iv (MAP_SHARED)
		1224	const_iv (MAP_FIXED)
700	const_iv (MAP_ANONYMOUS)	1225	const_iv (MAP_ANONYMOUS)
701		1226
702	/* linuxish */	1227	/* linuxish */
703	const_iv (MAP_HUGETLB)
704	const_iv (MAP_LOCKED)	1228	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	1229	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	1230	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	1231	const_iv (MAP_NONBLOCK)
		1232	const_iv (MAP_GROWSDOWN)
		1233	const_iv (MAP_32BIT)
		1234	const_iv (MAP_HUGETLB)
		1235	const_iv (MAP_STACK)
		1236	const_iv (MAP_FIXED_NOREPLACE)
		1237	const_iv (MAP_SHARED_VALIDATE)
		1238	const_iv (MAP_SYNC)
		1239	const_iv (MAP_UNINITIALIZED)
708		1240
		1241	const_iv (MREMAP_MAYMOVE)
		1242	const_iv (MREMAP_FIXED)
		1243
		1244	const_iv (MSG_CMSG_CLOEXEC)
		1245	const_iv (SOCK_CLOEXEC)
		1246
		1247	const_iv (F_DUPFD_CLOEXEC)
		1248
		1249	const_iv (F_ADD_SEALS)
		1250	const_iv (F_GET_SEALS)
		1251	const_iv (F_SEAL_SEAL)
		1252	const_iv (F_SEAL_SHRINK)
		1253	const_iv (F_SEAL_GROW)
		1254	const_iv (F_SEAL_WRITE)
		1255
		1256	const_iv (F_OFD_GETLK)
		1257	const_iv (F_OFD_SETLK)
		1258	const_iv (F_OFD_GETLKW)
		1259
		1260	const_iv (FIFREEZE)
		1261	const_iv (FITHAW)
		1262	const_iv (FITRIM)
		1263	const_iv (FICLONE)
		1264	const_iv (FICLONERANGE)
		1265	const_iv (FIDEDUPERANGE)
		1266
		1267	const_iv (FS_IOC_GETFLAGS)
		1268	const_iv (FS_IOC_SETFLAGS)
		1269	const_iv (FS_IOC_GETVERSION)
		1270	const_iv (FS_IOC_SETVERSION)
		1271	const_iv (FS_IOC_FIEMAP)
		1272	const_iv (FS_IOC_FSGETXATTR)
		1273	const_iv (FS_IOC_FSSETXATTR)
		1274	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1275	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1276	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1277
		1278	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1279
		1280	const_iv (FS_SECRM_FL)
		1281	const_iv (FS_UNRM_FL)
		1282	const_iv (FS_COMPR_FL)
		1283	const_iv (FS_SYNC_FL)
		1284	const_iv (FS_IMMUTABLE_FL)
		1285	const_iv (FS_APPEND_FL)
		1286	const_iv (FS_NODUMP_FL)
		1287	const_iv (FS_NOATIME_FL)
		1288	const_iv (FS_DIRTY_FL)
		1289	const_iv (FS_COMPRBLK_FL)
		1290	const_iv (FS_NOCOMP_FL)
		1291	const_iv (FS_ENCRYPT_FL)
		1292	const_iv (FS_BTREE_FL)
		1293	const_iv (FS_INDEX_FL)
		1294	const_iv (FS_JOURNAL_DATA_FL)
		1295	const_iv (FS_NOTAIL_FL)
		1296	const_iv (FS_DIRSYNC_FL)
		1297	const_iv (FS_TOPDIR_FL)
		1298	const_iv (FS_FL_USER_MODIFIABLE)
		1299
		1300	const_iv (FS_XFLAG_REALTIME)
		1301	const_iv (FS_XFLAG_PREALLOC)
		1302	const_iv (FS_XFLAG_IMMUTABLE)
		1303	const_iv (FS_XFLAG_APPEND)
		1304	const_iv (FS_XFLAG_SYNC)
		1305	const_iv (FS_XFLAG_NOATIME)
		1306	const_iv (FS_XFLAG_NODUMP)
		1307	const_iv (FS_XFLAG_RTINHERIT)
		1308	const_iv (FS_XFLAG_PROJINHERIT)
		1309	const_iv (FS_XFLAG_NOSYMLINKS)
		1310	const_iv (FS_XFLAG_EXTSIZE)
		1311	const_iv (FS_XFLAG_EXTSZINHERIT)
		1312	const_iv (FS_XFLAG_NODEFRAG)
		1313	const_iv (FS_XFLAG_FILESTREAM)
		1314	const_iv (FS_XFLAG_DAX)
		1315	const_iv (FS_XFLAG_HASATTR)
		1316
		1317	const_iv (FIEMAP_FLAG_SYNC)
		1318	const_iv (FIEMAP_FLAG_XATTR)
		1319	const_iv (FIEMAP_FLAGS_COMPAT)
		1320	const_iv (FIEMAP_EXTENT_LAST)
		1321	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1322	const_iv (FIEMAP_EXTENT_DELALLOC)
		1323	const_iv (FIEMAP_EXTENT_ENCODED)
		1324	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1325	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1326	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1327	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1328	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1329	const_iv (FIEMAP_EXTENT_MERGED)
		1330	const_iv (FIEMAP_EXTENT_SHARED)
		1331
		1332	const_iv (SPLICE_F_MOVE)
		1333	const_iv (SPLICE_F_NONBLOCK)
		1334	const_iv (SPLICE_F_MORE)
		1335	const_iv (SPLICE_F_GIFT)
		1336
		1337	const_iv (EFD_CLOEXEC)
		1338	const_iv (EFD_NONBLOCK)
		1339	const_iv (EFD_SEMAPHORE)
		1340
		1341	const_iv (MFD_CLOEXEC)
		1342	const_iv (MFD_ALLOW_SEALING)
		1343	const_iv (MFD_HUGETLB)
		1344	const_iv (MFD_HUGETLB_2MB)
		1345	const_iv (MFD_HUGETLB_1GB)
		1346
		1347	const_iv (CLOCK_REALTIME)
		1348	const_iv (CLOCK_MONOTONIC)
		1349	const_iv (CLOCK_BOOTTIME)
		1350	const_iv (CLOCK_REALTIME_ALARM)
		1351	const_iv (CLOCK_BOOTTIME_ALARM)
		1352
		1353	const_iv (TFD_NONBLOCK)
		1354	const_iv (TFD_CLOEXEC)
		1355
		1356	const_iv (TFD_TIMER_ABSTIME)
		1357	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1358
		1359	const_iv (STATX_TYPE)
		1360	const_iv (STATX_MODE)
		1361	const_iv (STATX_NLINK)
		1362	const_iv (STATX_UID)
		1363	const_iv (STATX_GID)
		1364	const_iv (STATX_ATIME)
		1365	const_iv (STATX_MTIME)
		1366	const_iv (STATX_CTIME)
		1367	const_iv (STATX_INO)
		1368	const_iv (STATX_SIZE)
		1369	const_iv (STATX_BLOCKS)
		1370	const_iv (STATX_BASIC_STATS)
		1371	const_iv (STATX_ALL)
		1372	const_iv (STATX_BTIME)
		1373	const_iv (STATX_ATTR_COMPRESSED)
		1374	const_iv (STATX_ATTR_IMMUTABLE)
		1375	const_iv (STATX_ATTR_APPEND)
		1376	const_iv (STATX_ATTR_NODUMP)
		1377	const_iv (STATX_ATTR_ENCRYPTED)
		1378	const_iv (STATX_ATTR_AUTOMOUNT)
		1379
		1380	const_iv (AT_FDCWD)
		1381	const_iv (AT_SYMLINK_NOFOLLOW)
		1382	const_iv (AT_EACCESS)
		1383	const_iv (AT_REMOVEDIR)
		1384	const_iv (AT_SYMLINK_FOLLOW)
		1385	const_iv (AT_NO_AUTOMOUNT)
		1386	const_iv (AT_EMPTY_PATH)
		1387	const_iv (AT_STATX_SYNC_TYPE)
		1388	const_iv (AT_STATX_AS_STAT)
		1389	const_iv (AT_STATX_FORCE_SYNC)
		1390	const_iv (AT_STATX_DONT_SYNC)
		1391	const_iv (AT_RECURSIVE)
		1392
		1393	const_iv (OPEN_TREE_CLONE)
		1394
		1395	const_iv (FSOPEN_CLOEXEC)
		1396
		1397	const_iv (FSPICK_CLOEXEC)
		1398	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1399	const_iv (FSPICK_NO_AUTOMOUNT)
		1400	const_iv (FSPICK_EMPTY_PATH)
		1401
		1402	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1403	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1404	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1405	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1406	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1407	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1408
		1409	/* waitid */
		1410	const_iv (P_PID)
		1411	const_iv (P_PIDFD)
		1412	const_iv (P_PGID)
		1413	const_iv (P_ALL)
		1414
		1415	const_iv (FSCONFIG_SET_FLAG)
		1416	const_iv (FSCONFIG_SET_STRING)
		1417	const_iv (FSCONFIG_SET_BINARY)
		1418	const_iv (FSCONFIG_SET_PATH)
		1419	const_iv (FSCONFIG_SET_PATH_EMPTY)
		1420	const_iv (FSCONFIG_SET_FD)
		1421	const_iv (FSCONFIG_CMD_CREATE)
		1422	const_iv (FSCONFIG_CMD_RECONFIGURE)
		1423
		1424	const_iv (MOUNT_ATTR_RDONLY)
		1425	const_iv (MOUNT_ATTR_NOSUID)
		1426	const_iv (MOUNT_ATTR_NODEV)
		1427	const_iv (MOUNT_ATTR_NOEXEC)
		1428	const_iv (MOUNT_ATTR__ATIME)
		1429	const_iv (MOUNT_ATTR_RELATIME)
		1430	const_iv (MOUNT_ATTR_NOATIME)
		1431	const_iv (MOUNT_ATTR_STRICTATIME)
		1432	const_iv (MOUNT_ATTR_NODIRATIME)
		1433
		1434	/* these are libeio constants, and are independent of gendef0 */
		1435	const_eio (SEEK_SET)
		1436	const_eio (SEEK_CUR)
		1437	const_eio (SEEK_END)
		1438
709	const_iv (MCL_FUTURE)	1439	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	1440	const_eio (MCL_CURRENT)
		1441	const_eio (MCL_ONFAULT)
711		1442
712	const_eio (MS_ASYNC)	1443	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	1444	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	1445	const_eio (MS_SYNC)
715		1446
716	const_eio (MT_MODIFY)	1447	const_eio (MT_MODIFY)
717		1448
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1449	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	1450	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1451	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1452
		1453	const_eio (FALLOC_FL_KEEP_SIZE)
		1454	const_eio (FALLOC_FL_PUNCH_HOLE)
		1455	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1456	const_eio (FALLOC_FL_ZERO_RANGE)
		1457	const_eio (FALLOC_FL_INSERT_RANGE)
		1458	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1459
		1460	const_eio (RENAME_NOREPLACE)
		1461	const_eio (RENAME_EXCHANGE)
		1462	const_eio (RENAME_WHITEOUT)
721		1463
722	const_eio (READDIR_DENTS)	1464	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	1465	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	1466	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1467	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1478	};
737		1479
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1480	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1481	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1482	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1483	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
741		1484
742	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1485	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
743	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1486	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1487
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1488	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1489
747	create_respipe ();	1490	/* allocate dummy pipe fd for aio_close */
		1491	{
		1492	int pipefd [2];
748		1493
749	if (eio_init (want_poll, done_poll) < 0)	1494	if (
750	croak ("IO::AIO: unable to initialise eio library");	1495	#ifdef _WIN32
		1496	_pipe (pipefd, 1, _O_BINARY) < 0
		1497	#else
		1498	pipe (pipefd) < 0
		1499	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1500	#endif
		1501	|| close (pipefd [1]) < 0
		1502	)
		1503	croak ("IO::AIO: unable to create dummy pipe for aio_close");
751		1504
752	/* atfork child called in fifo order, so before eio's handler */	1505	close_fd = pipefd [0];
753	X_THREAD_ATFORK (0, 0, atfork_child);	1506	}
754	}
755		1507
		1508	reinit ();
		1509	}
		1510
756	void	1511	void
		1512	reinit ()
		1513	PROTOTYPE:
		1514
		1515	void
757	max_poll_reqs (int nreqs)	1516	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1517	PROTOTYPE: $
759	CODE:	1518	CODE:
760	eio_set_max_poll_reqs (nreqs);	1519	eio_set_max_poll_reqs (nreqs);
761		1520
762	void	1521	void
…		…
764	PROTOTYPE: $	1523	PROTOTYPE: $
765	CODE:	1524	CODE:
766	eio_set_max_poll_time (nseconds);	1525	eio_set_max_poll_time (nseconds);
767		1526
768	void	1527	void
769	min_parallel (int nthreads)	1528	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1529	PROTOTYPE: $
771	CODE:	1530	CODE:
772	eio_set_min_parallel (nthreads);	1531	eio_set_min_parallel (nthreads);
773		1532
774	void	1533	void
775	max_parallel (int nthreads)	1534	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1535	PROTOTYPE: $
777	CODE:	1536	CODE:
778	eio_set_max_parallel (nthreads);	1537	eio_set_max_parallel (nthreads);
779		1538
780	void	1539	void
781	max_idle (int nthreads)	1540	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1541	PROTOTYPE: $
783	CODE:	1542	CODE:
784	eio_set_max_idle (nthreads);	1543	eio_set_max_idle (nthreads);
785		1544
786	void	1545	void
		1546	idle_timeout (unsigned int seconds)
		1547	PROTOTYPE: $
		1548	CODE:
		1549	eio_set_idle_timeout (seconds);
		1550
		1551	void
787	max_outstanding (int maxreqs)	1552	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1553	PROTOTYPE: $
789	CODE:	1554	CODE:
790	max_outstanding = maxreqs;	1555	max_outstanding = maxreqs;
791		1556
792	void	1557	void
793	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1558	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1559	PPCODE:
796	{	1560	{
797	dREQ;	1561	dREQ;
798		1562
		1563	req->type = EIO_WD_OPEN;
		1564	req_set_path1 (req, pathname);
		1565
		1566	REQ_SEND;
		1567	}
		1568
		1569	void
		1570	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1571	PPCODE:
		1572	{
		1573	dREQ;
		1574
799	req->type = EIO_OPEN;	1575	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1576	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1577	req->int1 = flags;
803	req->int2 = mode;	1578	req->int2 = mode;
804		1579
805	REQ_SEND;	1580	REQ_SEND;
806	}	1581	}
807		1582
808	void	1583	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1584	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1585	ALIAS:
812	aio_fsync = EIO_FSYNC	1586	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1587	aio_fdatasync = EIO_FDATASYNC
		1588	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1589	PPCODE:
815	{	1590	{
816	int fd = s_fileno_croak (fh, 0);	1591	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1592	dREQ;
818		1593
819	req->type = ix;	1594	req->type = ix;
820	req->sv1 = newSVsv (fh);	1595	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1596	req->int1 = fd;
822		1597
823	REQ_SEND (req);	1598	REQ_SEND;
824	}	1599	}
825		1600
826	void	1601	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1602	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1603	PPCODE:
830	{	1604	{
831	int fd = s_fileno_croak (fh, 0);	1605	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1606	dREQ;
833		1607
834	req->type = EIO_SYNC_FILE_RANGE;	1608	req->type = EIO_SYNC_FILE_RANGE;
835	req->sv1 = newSVsv (fh);	1609	req->sv1 = newSVsv (fh);
836	req->int1 = fd;	1610	req->int1 = fd;
837	req->offs = offset;	1611	req->offs = offset;
838	req->size = nbytes;	1612	req->size = nbytes;
839	req->int2 = flags;	1613	req->int2 = flags;
840		1614
841	REQ_SEND (req);	1615	REQ_SEND;
842	}	1616	}
843		1617
844	void	1618	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1619	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1620	PPCODE:
848	{	1621	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1622	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1623	dREQ;
852		1624
853	if (close_pipe < 0)	1625	req->type = EIO_FALLOCATE;
		1626	req->sv1 = newSVsv (fh);
		1627	req->int1 = fd;
		1628	req->int2 = mode;
		1629	req->offs = offset;
		1630	req->size = len;
		1631
		1632	REQ_SEND;
		1633	}
		1634
		1635	void
		1636	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1637	PPCODE:
		1638	{
		1639	int fd = s_fileno_croak (fh, 0);
		1640	dREQ;
		1641	#if 0
		1642	/* partially duplicate logic in s_fileno */
		1643	SvGETMAGIC (fh);
		1644
		1645	if (SvROK (fh))
		1646	{
		1647	fh = SvRV (fh);
		1648	SvGETMAGIC (fh);
		1649	}
		1650
		1651	if (SvTYPE (fh) == SVt_PVGV)
854	{	1652	{
855	int pipefd [2];	1653	/* perl filehandle */
		1654	PerlIOUnix_refcnt_inc (fd);
		1655	do_close ((GV *)fh, 1);
856		1656
857	if (pipe (pipefd) < 0	1657	req->type = EIO_CLOSE;
858	|| close (pipefd [1]) < 0	1658	req->int1 = fd;
859	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1659	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
860	abort (); /*D*/
861
862	close_pipe = pipefd [0];
863	}	1660	}
864		1661	else
		1662	#endif
		1663	{
		1664	/* fd number */
865	req->type = EIO_DUP2;	1665	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1666	req->int1 = close_fd;
		1667	req->sv2 = newSVsv (fh);
		1668	req->int2 = fd;
		1669	}
		1670
		1671	REQ_SEND;
		1672	}
		1673
		1674	void
		1675	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1676	PPCODE:
		1677	{
		1678	int fd = s_fileno_croak (fh, 0);
		1679	dREQ;
		1680
		1681	req->type = EIO_SEEK;
867	req->sv2 = newSVsv (fh);	1682	req->sv1 = newSVsv (fh);
868	req->int2 = fd;	1683	req->int1 = fd;
		1684	req->offs = SvVAL64 (offset);
		1685	req->int2 = whence;
869		1686
870	REQ_SEND (req);	1687	REQ_SEND;
871	}	1688	}
872		1689
873	void	1690	void
874	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1691	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
875	ALIAS:	1692	ALIAS:
876	aio_read = EIO_READ	1693	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1694	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1695	PPCODE:
880	{	1696	{
881	STRLEN svlen;	1697	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1698	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1699	char *svptr = SvPVbyte (data, svlen);
…		…
896	len = svlen - dataoffset;	1712	len = svlen - dataoffset;
897	}	1713	}
898	else	1714	else
899	{	1715	{
900	/* read: check type and grow scalar as necessary */	1716	/* read: check type and grow scalar as necessary */
901	SvUPGRADE (data, SVt_PV);	1717	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
902	svptr = SvGROW (data, len + dataoffset + 1);	1718	svptr = sv_grow (data, len + dataoffset + 1);
		1719	else if (SvCUR (data) < len + dataoffset)
		1720	croak ("length + dataoffset outside of scalar, and cannot grow");
903	}	1721	}
904		1722
905	{	1723	{
906	dREQ;	1724	dREQ;
907		1725
…		…
923	REQ_SEND;	1741	REQ_SEND;
924	}	1742	}
925	}	1743	}
926		1744
927	void	1745	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1746	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
929	PROTOTYPE: $$;$	1747	ALIAS:
		1748	aio_ioctl = EIO_IOCTL
		1749	aio_fcntl = EIO_FCNTL
930	PPCODE:	1750	PPCODE:
931	{	1751	{
932	SV *data;	1752	int fd = s_fileno_croak (fh, 0);
		1753	char *svptr;
		1754
		1755	if (SvPOK (arg) || !SvNIOK (arg))
		1756	{
		1757	STRLEN svlen;
		1758	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1759	#ifdef IOCPARM_LEN
		1760	STRLEN need = IOCPARM_LEN (request);
		1761	#else
		1762	STRLEN need = 256;
		1763	#endif
		1764
		1765	if (svlen < need)
		1766	svptr = SvGROW (arg, need);
		1767	}
		1768	else
		1769	svptr = (char *)SvIV (arg);
		1770
		1771	{
		1772	dREQ;
		1773
		1774	req->type = ix;
		1775	req->sv1 = newSVsv (fh);
		1776	req->int1 = fd;
		1777	req->int2 = (long)request;
		1778	req->sv2 = SvREFCNT_inc (arg);
		1779	req->ptr2 = svptr;
		1780
		1781	REQ_SEND;
		1782	}
		1783	}
		1784
		1785	void
		1786	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1787	ALIAS:
		1788	aio_readlink = EIO_READLINK
		1789	aio_realpath = EIO_REALPATH
		1790	PPCODE:
		1791	{
933	dREQ;	1792	dREQ;
934		1793
935	req->type = EIO_READLINK;	1794	req->type = ix;
936	req->sv1 = newSVsv (path);	1795	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1796
939	REQ_SEND;	1797	REQ_SEND;
940	}	1798	}
941		1799
942	void	1800	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1801	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1802	PPCODE:
946	{	1803	{
947	int ifd = s_fileno_croak (in_fh , 0);	1804	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1805	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1806	dREQ;
950		1807
951	req->type = EIO_SENDFILE;	1808	req->type = EIO_SENDFILE;
952	req->sv1 = newSVsv (out_fh);	1809	req->sv1 = newSVsv (out_fh);
953	req->int1 = ofd;	1810	req->int1 = ofd;
…		…
958		1815
959	REQ_SEND;	1816	REQ_SEND;
960	}	1817	}
961		1818
962	void	1819	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1820	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1821	PPCODE:
966	{	1822	{
967	int fd = s_fileno_croak (fh, 0);	1823	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1824	dREQ;
969		1825
970	req->type = EIO_READAHEAD;	1826	req->type = EIO_READAHEAD;
971	req->sv1 = newSVsv (fh);	1827	req->sv1 = newSVsv (fh);
972	req->int1 = fd;	1828	req->int1 = fd;
…		…
975		1831
976	REQ_SEND;	1832	REQ_SEND;
977	}	1833	}
978		1834
979	void	1835	void
980	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1836	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
981	ALIAS:	1837	ALIAS:
982	aio_stat = EIO_STAT	1838	aio_stat = EIO_STAT
983	aio_lstat = EIO_LSTAT	1839	aio_lstat = EIO_LSTAT
984	aio_statvfs = EIO_STATVFS	1840	aio_statvfs = EIO_STATVFS
985	PPCODE:	1841	PPCODE:
986	{	1842	{
987	dREQ;	1843	dREQ;
988		1844
989	req->sv1 = newSVsv (fh_or_path);	1845	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
990
991	if (SvPOK (req->sv1))
992	{
993	req->type = ix;
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995	}
996	else
997	{
998	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
999	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1000	}
1001		1846
1002	REQ_SEND;	1847	REQ_SEND;
1003	}	1848	}
1004		1849
1005	void	1850	void
		1851	st_xtime ()
		1852	ALIAS:
		1853	st_atime = 0x01
		1854	st_mtime = 0x02
		1855	st_ctime = 0x04
		1856	st_btime = 0x08
		1857	st_xtime = 0x0f
		1858	PPCODE:
		1859	EXTEND (SP, 4);
		1860	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1861	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1862	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1863	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1864
		1865	void
		1866	st_xtimensec ()
		1867	ALIAS:
		1868	st_atimensec = 0x01
		1869	st_mtimensec = 0x02
		1870	st_ctimensec = 0x04
		1871	st_btimensec = 0x08
		1872	st_xtimensec = 0x0f
		1873	st_btimesec = 0x10
		1874	st_gen = 0x20
		1875	PPCODE:
		1876	EXTEND (SP, 4);
		1877	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1878	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1879	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1880	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1881	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1882	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1883
		1884	UV
		1885	major (UV dev)
		1886	ALIAS:
		1887	minor = 1
		1888	CODE:
		1889	RETVAL = ix ? minor (dev) : major (dev);
		1890	OUTPUT:
		1891	RETVAL
		1892
		1893	UV
		1894	makedev (UV maj, UV min)
		1895	CODE:
		1896	RETVAL = makedev (maj, min);
		1897	OUTPUT:
		1898	RETVAL
		1899
		1900	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1901	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1007	PPCODE:	1902	PPCODE:
1008	{	1903	{
1009	dREQ;	1904	dREQ;
1010		1905
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1906	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1907	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1908	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1014
1015	if (SvPOK (req->sv1))
1016	{
1017	req->type = EIO_UTIME;
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
1019	}
1020	else
1021	{
1022	req->type = EIO_FUTIME;
1023	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1024	}
1025		1909
1026	REQ_SEND;	1910	REQ_SEND;
1027	}	1911	}
1028		1912
1029	void	1913	void
1030	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1914	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1031	PPCODE:	1915	PPCODE:
1032	{	1916	{
1033	dREQ;	1917	dREQ;
1034		1918
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1919	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1920	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_TRUNCATE;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FTRUNCATE;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1921
1049	REQ_SEND;	1922	REQ_SEND;
1050	}	1923	}
1051		1924
1052	void	1925	void
1053	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1926	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1054	ALIAS:
1055	aio_chmod = EIO_CHMOD
1056	aio_mkdir = EIO_MKDIR
1057	PPCODE:	1927	PPCODE:
1058	{	1928	{
1059	dREQ;	1929	dREQ;
1060		1930
1061	req->int2 = mode;	1931	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1932	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1063
1064	if (SvPOK (req->sv1))
1065	{
1066	req->type = ix;
1067	req->ptr1 = SvPVbyte_nolen (req->sv1);
1068	}
1069	else
1070	{
1071	req->type = EIO_FCHMOD;
1072	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1073	}
1074		1933
1075	REQ_SEND;	1934	REQ_SEND;
1076	}	1935	}
1077		1936
1078	void	1937	void
1079	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1938	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1080	PPCODE:	1939	PPCODE:
1081	{	1940	{
1082	dREQ;	1941	dREQ;
1083		1942
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1943	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1944	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1945	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1087
1088	if (SvPOK (req->sv1))
1089	{
1090	req->type = EIO_CHOWN;
1091	req->ptr1 = SvPVbyte_nolen (req->sv1);
1092	}
1093	else
1094	{
1095	req->type = EIO_FCHOWN;
1096	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1097	}
1098		1946
1099	REQ_SEND;	1947	REQ_SEND;
1100	}	1948	}
1101		1949
1102	void	1950	void
1103	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1951	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1104	PPCODE:	1952	PPCODE:
1105	{	1953	{
1106	dREQ;	1954	dREQ;
1107		1955
1108	req->type = EIO_READDIR;	1956	req->type = EIO_READDIR;
1109	req->sv1 = newSVsv (pathname);
1110	req->ptr1 = SvPVbyte_nolen (req->sv1);
1111	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1957	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1958
1113	if (flags & EIO_READDIR_DENTS)	1959	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1960	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1961
		1962	req_set_path1 (req, pathname);
		1963
1116	REQ_SEND;	1964	REQ_SEND;
1117	}	1965	}
1118		1966
1119	void	1967	void
		1968	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1969	PPCODE:
		1970	{
		1971	dREQ;
		1972
		1973	req->type = EIO_MKDIR;
		1974	req->int2 = mode;
		1975	req_set_path1 (req, pathname);
		1976
		1977	REQ_SEND;
		1978	}
		1979
		1980	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1981	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1121	ALIAS:	1982	ALIAS:
1122	aio_unlink = EIO_UNLINK	1983	aio_unlink = EIO_UNLINK
1123	aio_rmdir = EIO_RMDIR	1984	aio_rmdir = EIO_RMDIR
1124	aio_readdir = EIO_READDIR	1985	aio_readdir = EIO_READDIR
1125	PPCODE:	1986	PPCODE:
1126	{	1987	{
1127	dREQ;	1988	dREQ;
1128		1989
1129	req->type = ix;	1990	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1991	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1992
1133	REQ_SEND;	1993	REQ_SEND;
1134	}	1994	}
1135		1995
1136	void	1996	void
1137	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1997	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1138	ALIAS:	1998	ALIAS:
1139	aio_link = EIO_LINK	1999	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	2000	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	2001	aio_rename = EIO_RENAME
1142	PPCODE:	2002	PPCODE:
1143	{	2003	{
		2004	eio_wd wd2 = 0;
1144	dREQ;	2005	dREQ;
1145		2006
1146	req->type = ix;	2007	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	2008	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	2009	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	2010	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		2011
1152	REQ_SEND;	2012	REQ_SEND;
1153	}	2013	}
1154		2014
1155	void	2015	void
		2016	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		2017	PPCODE:
		2018	{
		2019	eio_wd wd2 = 0;
		2020	dREQ;
		2021
		2022	req->type = EIO_RENAME;
		2023	req_set_path1 (req, oldpath);
		2024	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		2025	req->int2 = flags;
		2026	req->int3 = (long)wd2;
		2027
		2028	REQ_SEND;
		2029	}
		2030
		2031	void
1156	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	2032	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1157	PPCODE:	2033	PPCODE:
1158	{	2034	{
1159	dREQ;	2035	dREQ;
1160		2036
1161	req->type = EIO_MKNOD;	2037	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	2038	req->int2 = (mode_t)mode;
1165	req->offs = dev;	2039	req->offs = dev;
		2040	req_set_path1 (req, pathname);
1166		2041
1167	REQ_SEND;	2042	REQ_SEND;
1168	}	2043	}
1169		2044
1170	void	2045	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	2046	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1172	ALIAS:	2047	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	2048	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	2049	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	2050	PPCODE:
1177	{	2051	{
1178	STRLEN svlen;	2052	STRLEN svlen;
		2053	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	2054	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);	2055
		2056	if (flags < 0)
		2057	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1181		2058
1182	if (offset < 0)	2059	if (offset < 0)
1183	offset += svlen;	2060	offset += svlen;
1184		2061
1185	if (offset < 0 || offset > svlen)	2062	if (offset < 0 || offset > svlen)
…		…
1190		2067
1191	{	2068	{
1192	dREQ;	2069	dREQ;
1193		2070
1194	req->type = ix;	2071	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	2072	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	2073	req->ptr2 = (char *)svptr + offset;
		2074	req->size = len;
1198	req->int1 = flags;	2075	req->int1 = flags;
1199		2076
1200	REQ_SEND;	2077	REQ_SEND;
1201	}	2078	}
1202	}	2079	}
1203		2080
1204	void	2081	void
		2082	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		2083	PPCODE:
		2084	{
		2085	STRLEN svlen;
		2086	char *svptr = SvPVbyte (data, svlen);
		2087	UV len = SvUV (length);
		2088
		2089	if (offset < 0)
		2090	offset += svlen;
		2091
		2092	if (offset < 0 || offset > svlen)
		2093	croak ("offset outside of scalar");
		2094
		2095	if (!SvOK (length) || len + offset > svlen)
		2096	len = svlen - offset;
		2097
		2098	{
		2099	dREQ;
		2100
		2101	req->type = EIO_MLOCK;
		2102	req->sv2 = SvREFCNT_inc (data);
		2103	req->ptr2 = (char *)svptr + offset;
		2104	req->size = len;
		2105
		2106	REQ_SEND;
		2107	}
		2108	}
		2109
		2110	void
		2111	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		2112	PPCODE:
		2113	{
		2114	dREQ;
		2115
		2116	req->type = EIO_MLOCKALL;
		2117	req->int1 = flags;
		2118
		2119	REQ_SEND;
		2120	}
		2121
		2122	void
		2123	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		2124	PPCODE:
		2125	{
		2126	int fd = s_fileno_croak (fh, 0);
		2127	dREQ;
		2128
		2129	req->type = EIO_CUSTOM;
		2130	req->sv1 = newSVsv (fh);
		2131	req->int1 = fd;
		2132
		2133	req->feed = fiemap;
		2134	#if HAVE_FIEMAP
		2135	/* keep our fingers crossed that the next two types are 64 bit */
		2136	req->offs = start;
		2137	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		2138	req->int2 = flags;
		2139	req->int3 = SvOK (count) ? SvIV (count) : -1;
		2140	#endif
		2141
		2142	REQ_SEND;
		2143	}
		2144
		2145	void
		2146	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2147	PPCODE:
		2148	{
		2149	char *svptr = 0;
		2150
		2151	sv_clear_foreign (data);
		2152
		2153	if (length) /* known length, directly read into scalar */
		2154	{
		2155	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2156	svptr = sv_grow (data, length + 1);
		2157	else if (SvCUR (data) < length)
		2158	croak ("length outside of scalar, and cannot grow");
		2159	else
		2160	svptr = SvPVbyte_nolen (data);
		2161	}
		2162
		2163	{
		2164	dREQ;
		2165
		2166	req->type = EIO_SLURP;
		2167	req_set_path1 (req, pathname);
		2168	req->offs = offset;
		2169	req->size = length;
		2170	req->sv2 = SvREFCNT_inc (data);
		2171	req->ptr2 = svptr;
		2172
		2173	if (!SvREADONLY (data))
		2174	{
		2175	SvREADONLY_on (data);
		2176	req->flags |= FLAG_SV2_RO_OFF;
		2177	}
		2178
		2179	REQ_SEND;
		2180	}
		2181	}
		2182
		2183	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	2184	aio_busy (double delay, SV *callback = &PL_sv_undef)
1206	PPCODE:	2185	PPCODE:
1207	{	2186	{
1208	dREQ;	2187	dREQ;
1209		2188
1210	req->type = EIO_BUSY;	2189	req->type = EIO_BUSY;
…		…
1212		2191
1213	REQ_SEND;	2192	REQ_SEND;
1214	}	2193	}
1215		2194
1216	void	2195	void
1217	aio_group (SV *callback=&PL_sv_undef)	2196	aio_group (SV *callback = &PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	2197	PPCODE:
1220	{	2198	{
1221	dREQ;	2199	dREQ;
1222		2200
1223	req->type = EIO_GROUP;	2201	req->type = EIO_GROUP;
1224		2202
		2203	PUTBACK;
1225	req_submit (req);	2204	req_submit (req);
		2205	SPAGAIN;
		2206
1226	XPUSHs (req_sv (req, aio_grp_stash));	2207	XPUSHs (req_sv (req, aio_grp_stash));
1227	}	2208	}
1228		2209
1229	void	2210	void
1230	aio_nop (SV *callback=&PL_sv_undef)	2211	aio_nop (SV *callback = &PL_sv_undef)
1231	ALIAS:	2212	ALIAS:
1232	aio_nop = EIO_NOP	2213	aio_nop = EIO_NOP
1233	aio_sync = EIO_SYNC	2214	aio_sync = EIO_SYNC
1234	PPCODE:	2215	PPCODE:
1235	{	2216	{
…		…
1239		2220
1240	REQ_SEND;	2221	REQ_SEND;
1241	}	2222	}
1242		2223
1243	int	2224	int
1244	aioreq_pri (int pri = 0)	2225	aioreq_pri (int pri = NO_INIT)
1245	PROTOTYPE: ;$
1246	CODE:	2226	CODE:
1247	RETVAL = next_pri;	2227	RETVAL = next_pri;
1248	if (items > 0)	2228	if (items > 0)
1249	{	2229	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2230	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2242	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	2243	next_pri = nice;
1264		2244
1265	void	2245	void
1266	flush ()	2246	flush ()
1267	PROTOTYPE:
1268	CODE:	2247	CODE:
1269	while (eio_nreqs ())	2248	while (eio_nreqs ())
1270	{	2249	{
1271	poll_wait ();	2250	poll_wait ();
1272	poll_cb ();	2251	poll_cb ();
1273	}	2252	}
1274		2253
1275	int	2254	int
1276	poll()	2255	poll ()
1277	PROTOTYPE:
1278	CODE:	2256	CODE:
1279	poll_wait ();	2257	poll_wait ();
1280	RETVAL = poll_cb ();	2258	RETVAL = poll_cb ();
1281	OUTPUT:	2259	OUTPUT:
1282	RETVAL	2260	RETVAL
1283		2261
1284	int	2262	int
1285	poll_fileno()	2263	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	2264	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	2265	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	2266	OUTPUT:
1290	RETVAL	2267	RETVAL
1291		2268
1292	int	2269	int
1293	poll_cb(...)	2270	poll_cb (...)
1294	PROTOTYPE:	2271	PROTOTYPE:
1295	CODE:	2272	CODE:
1296	RETVAL = poll_cb ();	2273	RETVAL = poll_cb ();
1297	OUTPUT:	2274	OUTPUT:
1298	RETVAL	2275	RETVAL
1299		2276
1300	void	2277	void
1301	poll_wait()	2278	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	2279	CODE:
1304	poll_wait ();	2280	poll_wait ();
1305		2281
1306	int	2282	int
1307	nreqs()	2283	nreqs ()
1308	PROTOTYPE:
1309	CODE:	2284	CODE:
1310	RETVAL = eio_nreqs ();	2285	RETVAL = eio_nreqs ();
1311	OUTPUT:	2286	OUTPUT:
1312	RETVAL	2287	RETVAL
1313		2288
1314	int	2289	int
1315	nready()	2290	nready ()
1316	PROTOTYPE:
1317	CODE:	2291	CODE:
1318	RETVAL = eio_nready ();	2292	RETVAL = eio_nready ();
1319	OUTPUT:	2293	OUTPUT:
1320	RETVAL	2294	RETVAL
1321		2295
1322	int	2296	int
1323	npending()	2297	npending ()
1324	PROTOTYPE:
1325	CODE:	2298	CODE:
1326	RETVAL = eio_npending ();	2299	RETVAL = eio_npending ();
1327	OUTPUT:	2300	OUTPUT:
1328	RETVAL	2301	RETVAL
1329		2302
1330	int	2303	int
1331	nthreads()	2304	nthreads ()
1332	PROTOTYPE:
1333	CODE:	2305	CODE:
1334	RETVAL = eio_nthreads ();	2306	RETVAL = eio_nthreads ();
1335	OUTPUT:	2307	OUTPUT:
1336	RETVAL	2308	RETVAL
1337		2309
1338	int	2310	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2311	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	2312	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	2313	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	2314	OUTPUT:
1348	RETVAL	2315	RETVAL
1349		2316
1350	ssize_t	2317	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2318	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	2319	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2320	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	2321	OUTPUT:
1356	RETVAL	2322	RETVAL
1357		2323
1358	void	2324	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2325	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	2326	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	2327	sv_clear_foreign (scalar);
1363	{	2328	{
1364	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2329	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2330	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	2331	if (addr == (void *)-1)
1367	XSRETURN_NO;	2332	XSRETURN_NO;
1368		2333
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	2334	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;
1372		2335
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */
1374	if (!(prot & PROT_WRITE))	2336	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	2337	SvREADONLY_on (scalar);
1376		2338
1377	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);
1381
1382	XSRETURN_YES;	2339	XSRETURN_YES;
1383	}	2340	}
1384		2341
1385	void	2342	void
1386	munmap (SV *scalar)	2343	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	2344	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	2345	sv_clear_foreign (scalar);
		2346
		2347	SV *
		2348	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2349	CODE:
		2350	{
		2351	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2352	void *new;
		2353
		2354	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2355	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2356
		2357	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2358
		2359	RETVAL = &PL_sv_no;
		2360
		2361	if (new != (void *)-1)
		2362	{
		2363	RETVAL = new == (void *)mg->mg_ptr
		2364	? newSVpvn ("0 but true", 10)
		2365	: &PL_sv_yes;
		2366
		2367	mg->mg_ptr = (char *)new;
		2368	mg->mg_obj = (SV *)new_length;
		2369
		2370	SvPVX (scalar) = mg->mg_ptr;
		2371	SvCUR_set (scalar, new_length);
		2372	}
		2373	}
		2374	OUTPUT:
		2375	RETVAL
		2376
		2377	int
		2378	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2379	ALIAS:
		2380	mprotect = 1
		2381	CODE:
		2382	{
		2383	STRLEN svlen;
		2384	void *addr = SvPVbyte (scalar, svlen);
		2385	STRLEN len = SvUV (length);
		2386
		2387	if (offset < 0)
		2388	offset += svlen;
		2389
		2390	if (offset < 0 || offset > svlen)
		2391	croak ("offset outside of scalar");
		2392
		2393	if (!SvOK (length) || len + offset > svlen)
		2394	len = svlen - offset;
		2395
		2396	addr = (void *)(((intptr_t)addr) + offset);
		2397	eio_page_align (&addr, &len);
		2398
		2399	switch (ix)
		2400	{
		2401	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2402	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2403	}
		2404	}
		2405	OUTPUT:
		2406	RETVAL
		2407
		2408	int
		2409	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
		2410	CODE:
		2411	{
		2412	STRLEN svlen;
		2413	void *addr = SvPVbyte (scalar, svlen);
		2414	size_t len = SvUV (length);
		2415
		2416	if (offset < 0)
		2417	offset += svlen;
		2418
		2419	if (offset < 0 || offset > svlen)
		2420	croak ("offset outside of scalar");
		2421
		2422	if (!SvOK (length) || len + offset > svlen)
		2423	len = svlen - offset;
		2424
		2425	addr = (void *)(((intptr_t)addr) + offset);
		2426	eio_page_align (&addr, &len);
		2427	#if _POSIX_MEMLOCK_RANGE
		2428	RETVAL = munlock (addr, len);
		2429	#else
		2430	RETVAL = EIO_ENOSYS ();
		2431	#endif
		2432	}
		2433	OUTPUT:
		2434	RETVAL
1390		2435
1391	int	2436	int
1392	mlockall (int flags)	2437	mlockall (int flags)
1393	PROTOTYPE: $	2438	PROTOTYPE: $;
1394	CODE:	2439	CODE:
1395	#if _POSIX_MEMLOCK	2440	RETVAL = eio_mlockall_sync (flags);
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	2441	OUTPUT:
1397	extern int mallopt (int, int);
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399	#endif
1400	mlockall (flags);
1401	#else
1402	RETVAL = -1;
1403	errno = ENOSYS;
1404	#endif
1405	OUTPUT:
1406	RETVAL	2442	RETVAL
1407		2443
1408	int	2444	int
1409	munlockall ()	2445	munlockall ()
1410	PROTOTYPE:
1411	CODE:	2446	CODE:
1412	#if _POSIX_MEMLOCK	2447	#if _POSIX_MEMLOCK
1413	munlockall ();	2448	munlockall ();
1414	#else	2449	#else
1415	RETVAL = -1;	2450	RETVAL = EIO_ENOSYS ();
1416	errno = ENOSYS;
1417	#endif	2451	#endif
1418	OUTPUT:	2452	OUTPUT:
1419	RETVAL	2453	RETVAL
		2454
		2455	int
		2456	statx (SV8 *pathname, int flags, UV mask)
		2457	CODE:
		2458	{
		2459	/* undocumented, and might go away, and anyway, should use eio_statx */
		2460	SV *wdsv = 0;
		2461	SV *pathsv = 0;
		2462	eio_wd wd = EIO_CWD;
		2463	void *ptr;
		2464	int res;
		2465
		2466	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2467	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2468
		2469	SvREFCNT_dec (pathsv);
		2470	SvREFCNT_dec (wdsv);
		2471	}
		2472	OUTPUT:
		2473	RETVAL
		2474
		2475	U32
		2476	stx_mode ()
		2477	PROTOTYPE:
		2478	CODE:
		2479	#if HAVE_STATX
		2480	RETVAL = stx.stx_mode;
		2481	#else
		2482	XSRETURN_UNDEF;
		2483	#endif
		2484	OUTPUT:
		2485	RETVAL
		2486
		2487	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2488	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2489	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2490	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2491	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2492	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2493	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2494	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2495	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2496	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2497	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2498	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2499	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2500	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2501	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2502	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2503	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2504	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2505
		2506	U32
		2507	stx_mask ()
		2508	PROTOTYPE:
		2509	ALIAS:
		2510	stx_mask = STATX_OFFSET_mask
		2511	stx_blksize = STATX_OFFSET_blksize
		2512	stx_nlink = STATX_OFFSET_nlink
		2513	stx_uid = STATX_OFFSET_uid
		2514	stx_gid = STATX_OFFSET_gid
		2515	stx_rdev_major = STATX_OFFSET_rdev_major
		2516	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2517	stx_dev_major = STATX_OFFSET_dev_major
		2518	stx_dev_minor = STATX_OFFSET_dev_minor
		2519	CODE:
		2520	#if HAVE_STATX
		2521	RETVAL = *(__u32 *)((char *)&stx + ix);
		2522	#else
		2523	XSRETURN_UNDEF;
		2524	#endif
		2525	OUTPUT:
		2526	RETVAL
		2527
		2528	VAL64
		2529	stx_attributes ()
		2530	PROTOTYPE:
		2531	ALIAS:
		2532	stx_attributes = STATX_OFFSET_attributes
		2533	stx_ino = STATX_OFFSET_ino
		2534	stx_size = STATX_OFFSET_size
		2535	stx_blocks = STATX_OFFSET_blocks
		2536	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2537	CODE:
		2538	#if HAVE_STATX
		2539	RETVAL = *(__u64 *)((char *)&stx + ix);
		2540	#else
		2541	XSRETURN_UNDEF;
		2542	#endif
		2543	OUTPUT:
		2544	RETVAL
		2545
		2546	NV
		2547	stx_atime ()
		2548	PROTOTYPE:
		2549	ALIAS:
		2550	stx_atime = STATX_OFFSET_atime
		2551	stx_btime = STATX_OFFSET_btime
		2552	stx_ctime = STATX_OFFSET_ctime
		2553	stx_mtime = STATX_OFFSET_mtime
		2554	CODE:
		2555	#if HAVE_STATX
		2556	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2557	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2558	#else
		2559	XSRETURN_UNDEF;
		2560	#endif
		2561	OUTPUT:
		2562	RETVAL
		2563
		2564	VAL64
		2565	stx_atimesec ()
		2566	PROTOTYPE:
		2567	ALIAS:
		2568	stx_atimesec = STATX_OFFSET_atime
		2569	stx_btimesec = STATX_OFFSET_btime
		2570	stx_ctimesec = STATX_OFFSET_ctime
		2571	stx_mtimesec = STATX_OFFSET_mtime
		2572	CODE:
		2573	#if HAVE_STATX
		2574	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2575	RETVAL = ts->tv_sec;
		2576	#else
		2577	XSRETURN_UNDEF;
		2578	#endif
		2579	OUTPUT:
		2580	RETVAL
		2581
		2582	U32
		2583	stx_atimensec ()
		2584	PROTOTYPE:
		2585	ALIAS:
		2586	stx_atimensec = STATX_OFFSET_atime
		2587	stx_btimensec = STATX_OFFSET_btime
		2588	stx_ctimensec = STATX_OFFSET_ctime
		2589	stx_mtimensec = STATX_OFFSET_mtime
		2590	CODE:
		2591	#if HAVE_STATX
		2592	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2593	RETVAL = ts->tv_nsec;
		2594	#else
		2595	RETVAL = 0;
		2596	#endif
		2597	OUTPUT:
		2598	RETVAL
		2599
		2600	void
		2601	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2602	PPCODE:
		2603	{
		2604	SV *retval;
		2605	#if HAVE_ACCEPT4
		2606	socklen_t salen_ = salen ? salen + 1 : 0;
		2607
		2608	if (salen)
		2609	{
		2610	sv_upgrade (sockaddr, SVt_PV);
		2611	sv_grow (sockaddr, salen_);
		2612	}
		2613
		2614	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2615
		2616	retval = newmortalFH (res, O_RDWR);
		2617
		2618	if (res >= 0 && salen > 0)
		2619	{
		2620	if (salen_ > salen + 1)
		2621	salen_ = salen + 1;
		2622
		2623	SvPOK_only (sockaddr);
		2624	SvCUR_set (sockaddr, salen_);
		2625	}
		2626	#else
		2627	errno = ENOSYS;
		2628	retval = &PL_sv_undef;
		2629	#endif
		2630	XPUSHs (retval);
		2631	}
		2632
		2633	ssize_t
		2634	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2635	CODE:
		2636	{
		2637	#if HAVE_LINUX_SPLICE
		2638	loff_t off_in_, off_out_;
		2639	RETVAL = splice (
		2640	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2641	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2642	length, flags
		2643	);
		2644	#else
		2645	RETVAL = EIO_ENOSYS ();
		2646	#endif
		2647	}
		2648	OUTPUT:
		2649	RETVAL
		2650
		2651	ssize_t
		2652	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2653	CODE:
		2654	#if HAVE_LINUX_SPLICE
		2655	RETVAL = tee (rfh, wfh, length, flags);
		2656	#else
		2657	RETVAL = EIO_ENOSYS ();
		2658	#endif
		2659	OUTPUT:
		2660	RETVAL
		2661
		2662	int
		2663	pipesize (aio_rfd rfh, int new_size = -1)
		2664	PROTOTYPE: $;$
		2665	CODE:
		2666	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2667	if (new_size >= 0)
		2668	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2669	else
		2670	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2671	#else
		2672	errno = ENOSYS;
		2673	RETVAL = -1;
		2674	#endif
		2675	OUTPUT:
		2676	RETVAL
		2677
		2678	void
		2679	pipe2 (int flags = 0)
		2680	PROTOTYPE: ;$
		2681	PPCODE:
		2682	{
		2683	int fd[2];
		2684	int res;
		2685
		2686	if (flags)
		2687	#if HAVE_PIPE2
		2688	res = pipe2 (fd, flags);
		2689	#else
		2690	res = (errno = ENOSYS, -1);
		2691	#endif
		2692	else
		2693	res = pipe (fd);
		2694
		2695	if (!res)
		2696	{
		2697	EXTEND (SP, 2);
		2698	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2699	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2700	}
		2701	}
		2702
		2703	void
		2704	pidfd_open (int pid, unsigned int flags = 0)
		2705	PPCODE:
		2706	{
		2707	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2708	int fd = syscall (SYS_pidfd_open, pid, flags);
		2709	XPUSHs (newmortalFH (fd, O_RDWR));
		2710	}
		2711
		2712	int
		2713	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2714	PPCODE:
		2715	{
		2716	int res;
		2717	#if HAVE_SIGINFO_T
		2718	siginfo_t si = { 0 };
		2719
		2720	if (SvOK (siginfo))
		2721	{
		2722	HV *hv;
		2723	SV **svp;
		2724
		2725	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2726	croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
		2727
		2728	hv = (HV *)SvRV (siginfo);
		2729
		2730	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2731	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2732	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2733	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2734	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2735	}
		2736
		2737	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2738	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2739	#else
		2740	res = (errno = ENOSYS, -1);
		2741	#endif
		2742
		2743	XPUSHs (sv_2mortal (newSViv (res)));
		2744	}
		2745
		2746	void
		2747	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2748	PPCODE:
		2749	{
		2750	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2751	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2752	XPUSHs (newmortalFH (fd, O_RDWR));
		2753	}
		2754
		2755	void
		2756	eventfd (unsigned int initval = 0, int flags = 0)
		2757	PPCODE:
		2758	{
		2759	int fd;
		2760	#if HAVE_EVENTFD
		2761	fd = eventfd (initval, flags);
		2762	#else
		2763	fd = (errno = ENOSYS, -1);
		2764	#endif
		2765
		2766	XPUSHs (newmortalFH (fd, O_RDWR));
		2767	}
		2768
		2769	void
		2770	timerfd_create (int clockid, int flags = 0)
		2771	PPCODE:
		2772	{
		2773	int fd;
		2774	#if HAVE_TIMERFD
		2775	fd = timerfd_create (clockid, flags);
		2776	#else
		2777	fd = (errno = ENOSYS, -1);
		2778	#endif
		2779
		2780	XPUSHs (newmortalFH (fd, O_RDWR));
		2781	}
		2782
		2783	void
		2784	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2785	PPCODE:
		2786	{
		2787	int fd = s_fileno_croak (fh, 0);
		2788	#if HAVE_TIMERFD
		2789	int res;
		2790	struct itimerspec its, ots;
		2791
		2792	ts_set (&its.it_interval, interval);
		2793	ts_set (&its.it_value , value);
		2794	res = timerfd_settime (fd, flags, &its, &ots);
		2795
		2796	if (!res)
		2797	{
		2798	EXTEND (SP, 2);
		2799	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2800	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2801	}
		2802	#else
		2803	errno = ENOSYS;
		2804	#endif
		2805	}
		2806
		2807	void
		2808	timerfd_gettime (SV *fh)
		2809	PPCODE:
		2810	{
		2811	int fd = s_fileno_croak (fh, 0);
		2812	#if HAVE_TIMERFD
		2813	int res;
		2814	struct itimerspec ots;
		2815	res = timerfd_gettime (fd, &ots);
		2816
		2817	if (!res)
		2818	{
		2819	EXTEND (SP, 2);
		2820	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2821	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2822	}
		2823	#else
		2824	errno = ENOSYS;
		2825	#endif
		2826	}
		2827
		2828	void
		2829	memfd_create (SV8 *pathname, int flags = 0)
		2830	PPCODE:
		2831	{
		2832	int fd;
		2833	#if HAVE_MEMFD_CREATE
		2834	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2835	#else
		2836	fd = (errno = ENOSYS, -1);
		2837	#endif
		2838
		2839	XPUSHs (newmortalFH (fd, O_RDWR));
		2840	}
		2841
		2842	int
		2843	fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
		2844	CODE:
		2845	{
		2846	int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
		2847	char **envp, **argv;
		2848	argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
		2849	if (!SvOK (envs))
		2850	{
		2851	extern char **environ;
		2852	envp = environ;
		2853	}
		2854	else
		2855	envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
		2856	#if _POSIX_VERSION >= 200809L
		2857	RETVAL = fexecve (fd, argv, envp);
		2858	#else
		2859	RETVAL = (errno = ENOSYS, -1);
		2860	#endif
		2861	}
		2862	OUTPUT: RETVAL
		2863
		2864	UV
		2865	get_fdlimit ()
		2866	CODE:
		2867	#if HAVE_RLIMITS
		2868	struct rlimit rl;
		2869	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2870	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2871	#endif
		2872	XSRETURN_UNDEF;
		2873	OUTPUT:
		2874	RETVAL
		2875
		2876	void
		2877	min_fdlimit (UV limit = 0x7fffffffU)
		2878	CODE:
		2879	{
		2880	#if HAVE_RLIMITS
		2881	struct rlimit rl;
		2882	rlim_t orig_rlim_max;
		2883	UV bit;
		2884
		2885	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2886	goto fail;
		2887
		2888	if (rl.rlim_cur == RLIM_INFINITY)
		2889	XSRETURN_YES;
		2890
		2891	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2892
		2893	if (rl.rlim_cur < limit)
		2894	{
		2895	rl.rlim_cur = limit;
		2896
		2897	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2898	rl.rlim_max = rl.rlim_cur;
		2899	}
		2900
		2901	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2902	XSRETURN_YES;
		2903
		2904	if (errno == EPERM)
		2905	{
		2906	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2907	/* our limit overflows a system-wide limit */
		2908	/* try an adaptive algorithm, but do not lower the hardlimit */
		2909	rl.rlim_max = 0;
		2910	for (bit = 0x40000000U; bit; bit >>= 1)
		2911	{
		2912	rl.rlim_max |= bit;
		2913	rl.rlim_cur = rl.rlim_max;
		2914
		2915	/* never decrease the hard limit */
		2916	if (rl.rlim_max < orig_rlim_max)
		2917	break;
		2918
		2919	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2920	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2921	}
		2922
		2923	/* now, raise the soft limit to the max permitted */
		2924	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2925	{
		2926	rl.rlim_cur = rl.rlim_max;
		2927	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2928	errno = EPERM;
		2929	}
		2930	}
		2931	#endif
		2932	fail:
		2933	XSRETURN_UNDEF;
		2934	}
1420		2935
1421	void _on_next_submit (SV *cb)	2936	void _on_next_submit (SV *cb)
1422	CODE:	2937	CODE:
1423	SvREFCNT_dec (on_next_submit);	2938	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2939	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		2940
1426	PROTOTYPES: DISABLE	2941	PROTOTYPES: DISABLE
1427		2942
		2943	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2944
		2945	BOOT:
		2946	{
		2947	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2948	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2949	}
		2950
		2951	void
		2952	DESTROY (SV *self)
		2953	CODE:
		2954	{
		2955	aio_wd wd = SvAIO_WD (self);
		2956	#if HAVE_AT
		2957	{
		2958	SV *callback = &PL_sv_undef;
		2959	dREQ; /* clobbers next_pri :/ */
		2960	next_pri = req->pri; /* restore next_pri */
		2961	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2962	req->type = EIO_WD_CLOSE;
		2963	req->wd = wd;
		2964	REQ_SEND;
		2965	}
		2966	#else
		2967	eio_wd_close_sync (wd);
		2968	#endif
		2969	}
		2970
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2971	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		2972
1430	void	2973	void
1431	cancel (aio_req_ornot req)	2974	cancel (aio_req_ornot req)
1432	CODE:	2975	CODE:
1433	eio_cancel (req);	2976	eio_cancel (req);
1434		2977
1435	void	2978	void
1436	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2979	cb (aio_req_ornot req, SV *callback = NO_INIT)
1437	PPCODE:	2980	PPCODE:
1438	{	2981	{
1439	if (GIMME_V != G_VOID)	2982	if (GIMME_V != G_VOID)
1440	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2983	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1441		2984
1442	if (items > 1)	2985	if (items > 1)
1443	{	2986	{
1444	SV *cb_cv =get_cb (callback);	2987	SV *cb_cv = get_cb (callback);
1445		2988
1446	SvREFCNT_dec (req->callback);	2989	SvREFCNT_dec (req->callback);
1447	req->callback = SvREFCNT_inc (cb_cv);	2990	req->callback = SvREFCNT_inc (cb_cv);
1448	}	2991	}
1449	}	2992	}
…		…
1506	limit (aio_req grp, int limit)	3049	limit (aio_req grp, int limit)
1507	CODE:	3050	CODE:
1508	eio_grp_limit (grp, limit);	3051	eio_grp_limit (grp, limit);
1509		3052
1510	void	3053	void
1511	feed (aio_req grp, SV *callback=&PL_sv_undef)	3054	feed (aio_req grp, SV *callback = &PL_sv_undef)
1512	CODE:	3055	CODE:
1513	{	3056	{
1514	SvREFCNT_dec (grp->sv2);	3057	SvREFCNT_dec (grp->sv2);
1515	grp->sv2 = newSVsv (callback);	3058	grp->sv2 = newSVsv (callback);
1516	grp->feed = aio_grp_feed;	3059	grp->feed = aio_grp_feed;

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