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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.134 by root, Sun Apr 19 13:05:06 2009 UTC vs.
Revision 1.289 by root, Mon Jan 4 22:19:06 2021 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"
		9
		10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
8		13
9	#include <stddef.h>	14	#include <stddef.h>
10	#include <stdlib.h>	15	#include <stdlib.h>
11	#include <errno.h>	16	#include <errno.h>
12	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
13	#include <sys/stat.h>	19	#include <sys/stat.h>
14	#include <limits.h>	20	#include <limits.h>
15	#include <fcntl.h>	21	#include <fcntl.h>
16	#include <sched.h>	22	#include <sched.h>
17		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		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
		36	#endif
		37
18	/* perl namespace pollution */	38	/* perl namespace pollution */
19	#undef VERSION	39	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		40
70	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	43	#undef readdir
73	#undef opendir	44	#undef opendir
74	#undef closedir	45	#undef closedir
75		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
76	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STATI64
77		84
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	85	#else
82	# define SvVAL64 SvNV	86
		87	#include <sys/time.h>
		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
83	#endif	96	#endif
84		97
85	/*****************************************************************************/	98	/*****************************************************************************/
86		99
87	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
95		108
96	/*****************************************************************************/	109	/*****************************************************************************/
97		110
98	static HV *stash;	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
99	typedef SV SV8; /* byte-sv, used for argument-checking */	173	typedef SV SV8; /* byte-sv, used for argument-checking */
		174	typedef int aio_rfd; /* read file desriptor */
		175	typedef int aio_wfd; /* write file descriptor */
100		176
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	177	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		178
104	#define EIO_REQ_MEMBERS \	179	#define EIO_REQ_MEMBERS \
105	SV *callback; \	180	SV *callback; \
106	SV *sv1, *sv2; \	181	SV *sv1, *sv2; \
		182	SV *sv3, *sv4; \
107	STRLEN stroffset; \	183	STRLEN stroffset; \
108	SV *self;	184	SV *self;
109		185
110	#define EIO_NO_WRAPPERS 1	186	#define EIO_NO_WRAPPERS 1
111		187
…		…
114	static int req_invoke (eio_req *req);	190	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	191	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	192	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	193	#define EIO_DESTROY(req) req_destroy (req)
118		194
		195	#include "libeio/eio.c"
		196
		197	#if !HAVE_POSIX_FADVISE
		198	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		199	#endif
		200
		201	#if !HAVE_POSIX_MADVISE
		202	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		203	#endif
		204
		205	#ifndef MAP_ANONYMOUS
		206	# ifdef MAP_ANON
		207	# define MAP_ANONYMOUS MAP_ANON
		208	# else
		209	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		210	# endif
		211	#endif
		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
		225	# undef PAGESIZE
		226	#endif
		227
		228	#if PAGESIZE <= 0
		229	# define PAGESIZE sysconf (_SC_PAGESIZE)
		230	#endif
		231
		232	/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
		233	#ifdef __sun
		234	# undef HAVE_SYSCALL
		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
		455
119	enum {	456	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	457	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	458	};
122		459
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	460	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	461	typedef eio_req *aio_req_ornot;
		462	typedef eio_wd aio_wd;
127		463
128	static SV *on_next_submit;	464	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	465	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	466	static int max_outstanding;
131		467
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	468	static s_epipe respipe;
133		469
134	static void req_destroy (aio_req req);	470	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	471	static void req_cancel (aio_req req);
136		472
137	static void want_poll (void)	473	static void
		474	want_poll (void)
138	{	475	{
139	/* write a dummy byte to the pipe so fh becomes ready */	476	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	477	s_epipe_signal (&respipe);
141	}	478	}
142		479
143	static void done_poll (void)	480	static void
		481	done_poll (void)
144	{	482	{
145	/* read any signals sent by the worker threads */	483	/* read any signals sent by the worker threads */
146	char buf [4];	484	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	485	}
150		486
151	/* must be called at most once */	487	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	488	ecb_noinline
		489	static SV *
		490	req_sv (aio_req req, HV *stash)
153	{	491	{
154	if (!req->self)	492	if (!req->self)
155	{	493	{
156	req->self = (SV *)newHV ();	494	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	495	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	496	}
159		497
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	498	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	499	}
162		500
163	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)
164	{	510	{
165	MAGIC *mg;	511	MAGIC *mg;
166		512
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	513	if (!SvROK (sv)
		514	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		515	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		516	&& SvSTASH (SvRV (sv)) != aio_req_stash
		517	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	518	croak ("object of class IO::AIO::REQ expected");
169		519
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	520	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		521
172	return mg ? (aio_req)mg->mg_ptr : 0;	522	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	523	}
174		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
175	static void aio_grp_feed (aio_req grp)	562	aio_grp_feed (aio_req grp)
176	{	563	{
177	if (grp->sv2 && SvOK (grp->sv2))	564	if (grp->sv2 && SvOK (grp->sv2))
178	{	565	{
179	dSP;	566	dSP;
180		567
181	ENTER;	568	ENTER;
182	SAVETMPS;	569	SAVETMPS;
183	PUSHMARK (SP);	570	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	571	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	572	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	573	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	574	SPAGAIN;
188	FREETMPS;	575	FREETMPS;
189	LEAVE;	576	LEAVE;
190	}	577	}
191	}	578	}
192		579
		580	ecb_noinline
		581	static void
193	static void req_submit (eio_req *req)	582	req_submit (eio_req *req)
194	{	583	{
195	eio_submit (req);	584	eio_submit (req);
196		585
197	if (expect_false (on_next_submit))	586	if (expect_false (on_next_submit))
198	{	587	{
…		…
205	PUTBACK;	594	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	595	call_sv (cb, G_DISCARD | G_EVAL);
207	}	596	}
208	}	597	}
209		598
		599	static int
210	static int req_invoke (eio_req *req)	600	req_invoke (eio_req *req)
211	{	601	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	602	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	603	SvREADONLY_off (req->sv2);
216		604
217	if (!EIO_CANCELLED (req) && req->callback)	605	if (!EIO_CANCELLED (req) && req->callback)
218	{	606	{
		607	dSP;
		608	static SV *sv_result_cache; /* caches the result integer SV */
		609	SV *sv_result;
		610
219	ENTER;	611	ENTER;
220	SAVETMPS;	612	SAVETMPS;
221	PUSHMARK (SP);	613	PUSHMARK (SP);
222	EXTEND (SP, 1);	614	EXTEND (SP, 1);
223		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
224	switch (req->type)	629	switch (req->type)
225	{	630	{
		631	case EIO_WD_OPEN:
		632	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		633	break;
		634
226	case EIO_READDIR:	635	case EIO_READDIR:
227	{	636	{
228	SV *rv = &PL_sv_undef;	637	SV *rv = &PL_sv_undef;
229		638
230	if (req->result >= 0)	639	if (req->result >= 0)
231	{	640	{
232	int i;	641	int i;
233	char *buf = req->ptr2;	642	char *names = (char *)req->ptr2;
		643	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	644	AV *av = newAV ();
235		645
236	av_extend (av, req->result - 1);	646	av_extend (av, req->result - 1);
237		647
238	for (i = 0; i < req->result; ++i)	648	for (i = 0; i < req->result; ++i)
239	{	649	{
240	SV *sv = newSVpv (buf, 0);	650	if (req->int1 & EIO_READDIR_DENTS)
		651	{
		652	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		653
		654	if (req->int1 & EIO_READDIR_CUSTOM2)
		655	{
		656	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		657	AV *avent = newAV ();
		658
		659	av_extend (avent, 2);
		660
		661	if (!sv_type [ent->type])
		662	{
		663	sv_type [ent->type] = newSViv (ent->type);
		664	SvREADONLY_on (sv_type [ent->type]);
		665	}
		666
		667	av_store (avent, 0, namesv);
		668	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		669	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		670
		671	av_store (av, i, newRV_noinc ((SV *)avent));
		672	}
		673	else
242	av_store (av, i, sv);	674	av_store (av, i, namesv);
		675
		676	++ent;
		677	}
		678	else
		679	{
		680	SV *name = newSVpv (names, 0);
		681	av_store (av, i, name);
243	buf += SvCUR (sv) + 1;	682	names += SvCUR (name) + 1;
		683	}
244	}	684	}
245		685
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	686	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	687	}
248		688
249	PUSHs (rv);	689	PUSHs (rv);
		690
		691	if (req->int1 & EIO_READDIR_CUSTOM1)
		692	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250	}	693	}
251	break;	694	break;
252		695
253	case EIO_OPEN:	696	case EIO_OPEN:
		697	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		698	break;
		699
		700	case EIO_STATVFS:
		701	case EIO_FSTATVFS:
254	{	702	{
255	/* convert fd to fh */
256	SV *fh = &PL_sv_undef;	703	SV *rv = &PL_sv_undef;
257		704
		705	#ifndef _WIN32
258	if (req->result >= 0)	706	if (req->result >= 0)
259	{	707	{
		708	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
260	GV *gv = (GV *)sv_newmortal ();	709	HV *hv = newHV ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	710	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
262	char sym [64];	711	* chooses to make it a struct.
263	int symlen;
264		712	*/
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	713	unsigned long fsid = 0;
266	gv_init (gv, stash, sym, symlen, 0);	714	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
267		715
268	symlen = snprintf (	716	rv = sv_2mortal (newRV_noinc ((SV *)hv));
269	sym,
270	sizeof (sym),
271	"%s&=%d",
272	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273	req->result
274	);
275		717
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	718	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
277	fh = (SV *)gv;	719	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		720	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		721	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		722	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		723	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		724	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		725	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		726	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		727	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		728	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
278	}	729	}
		730	#endif
279		731
280	PUSHs (fh);	732	PUSHs (rv);
281	}	733	}
		734
282	break;	735	break;
283		736
284	case EIO_GROUP:	737	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	738	req->int1 = 2; /* mark group as finished */
286		739
…		…
298	case EIO_NOP:	751	case EIO_NOP:
299	case EIO_BUSY:	752	case EIO_BUSY:
300	break;	753	break;
301		754
302	case EIO_READLINK:	755	case EIO_READLINK:
		756	case EIO_REALPATH:
303	if (req->result > 0)	757	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	758	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	759	break;
306		760
307	case EIO_STAT:	761	case EIO_STAT:
308	case EIO_LSTAT:	762	case EIO_LSTAT:
309	case EIO_FSTAT:	763	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	764	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		765
311	PL_laststatval = req->result;	766	if (!(PL_laststatval = req->result))
		767	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	768	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	769
		770	PUSHs (sv_result);
314	break;	771	break;
315		772
		773	case EIO_SEEK:
		774	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		775	break;
		776
316	case EIO_READ:	777	case EIO_READ:
		778	{
317	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));
318	*SvEND (req->sv2) = 0;	780	*SvEND (req->sv2) = 0;
319	PUSHs (sv_2mortal (newSViv (req->result)));	781	SvPOK_only (req->sv2);
		782	SvSETMAGIC (req->sv2);
		783	PUSHs (sv_result);
		784	}
320	break;	785	break;
321		786
322	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 */
323	if (req->result > 0)	858	if (req->result > 0)
324	req->result = 0;	859	SvIV_set (sv_result, 0);
325	/* FALLTHROUGH */	860	/* FALLTHROUGH */
326		861
327	default:	862	default:
328	PUSHs (sv_2mortal (newSViv (req->result)));	863	PUSHs (sv_result);
329	break;	864	break;
330	}	865	}
331		866
332	errno = req->errorno;	867	errno = req->errorno;
333		868
334	PUTBACK;	869	PUTBACK;
335	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	870	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336	SPAGAIN;	871	SPAGAIN;
337		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
338	FREETMPS;	878	FREETMPS;
339	LEAVE;	879	LEAVE;
340		880
341	PUTBACK;	881	PUTBACK;
342	}	882	}
343		883
344	return !!SvTRUE (ERRSV);	884	return !!SvTRUE (ERRSV);
345	}	885	}
346		886
		887	static void
347	static void req_destroy (aio_req req)	888	req_destroy (aio_req req)
348	{	889	{
349	if (req->self)	890	if (req->self)
350	{	891	{
351	sv_unmagic (req->self, PERL_MAGIC_ext);	892	sv_unmagic (req->self, PERL_MAGIC_ext);
352	SvREFCNT_dec (req->self);	893	SvREFCNT_dec (req->self);
353	}	894	}
354		895
355	SvREFCNT_dec (req->sv1);	896	SvREFCNT_dec (req->sv1);
356	SvREFCNT_dec (req->sv2);	897	SvREFCNT_dec (req->sv2);
		898	SvREFCNT_dec (req->sv3);
		899	SvREFCNT_dec (req->sv4);
357	SvREFCNT_dec (req->callback);	900	SvREFCNT_dec (req->callback);
358		901
359	Safefree (req);	902	free (req);
360	}	903	}
361		904
		905	static void
362	static void req_cancel_subs (aio_req grp)	906	req_cancel_subs (aio_req grp)
363	{	907	{
364	aio_req sub;
365
366	if (grp->type != EIO_GROUP)	908	if (grp->type != EIO_GROUP)
367	return;	909	return;
368		910
369	SvREFCNT_dec (grp->sv2);	911	SvREFCNT_dec (grp->sv2);
370	grp->sv2 = 0;	912	grp->sv2 = 0;
371		913
372	eio_grp_cancel (grp);	914	eio_grp_cancel (grp);
373	}	915	}
374		916
375	#ifdef USE_SOCKETS_AS_HANDLES	917	ecb_cold
376	# define TO_SOCKET(x) (win32_get_osfhandle (x))
377	#else
378	# define TO_SOCKET(x) (x)
379	#endif
380
381	static void	918	static void
382	create_respipe (void)	919	create_respipe (void)
383	{	920	{
384	int old_readfd = respipe [0];
385
386	if (respipe [1] >= 0)
387	respipe_close (TO_SOCKET (respipe [1]));
388
389	#ifdef _WIN32
390	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
391	#else
392	if (pipe (respipe))	921	if (s_epipe_renew (&respipe))
393	#endif
394	croak ("unable to initialize result pipe");	922	croak ("IO::AIO: unable to initialize result pipe");
395
396	if (old_readfd >= 0)
397	{
398	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
399	croak ("unable to initialize result pipe(2)");
400
401	respipe_close (respipe [0]);
402	respipe [0] = old_readfd;
403	}
404
405	#ifdef _WIN32
406	int arg = 1;
407	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
408	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
409	#else
410	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
411	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
412	#endif
413	croak ("unable to initialize result pipe(3)");
414
415	respipe_osf [0] = TO_SOCKET (respipe [0]);
416	respipe_osf [1] = TO_SOCKET (respipe [1]);
417	}	923	}
418		924
419	static void poll_wait (void)	925	static void
		926	poll_wait (void)
420	{	927	{
421	fd_set rfd;
422
423	while (eio_nreqs ())	928	while (eio_nreqs ())
424	{	929	{
425	int size;	930	int size;
426		931
427	X_LOCK (reslock);	932	X_LOCK (EIO_POOL->reslock);
428	size = res_queue.size;	933	size = EIO_POOL->res_queue.size;
429	X_UNLOCK (reslock);	934	X_UNLOCK (EIO_POOL->reslock);
430		935
431	if (size)	936	if (size)
432	return;	937	return;
433		938
434	etp_maybe_start_thread ();	939	etp_maybe_start_thread (EIO_POOL);
435		940
436	FD_ZERO (&rfd);	941	s_epipe_wait (&respipe);
437	FD_SET (respipe [0], &rfd);
438
439	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440	}	942	}
441	}	943	}
442		944
443	static int poll_cb (void)	945	static int
		946	poll_cb (void)
444	{	947	{
445	for (;;)	948	for (;;)
446	{	949	{
447	int res = eio_poll ();	950	int res = eio_poll ();
448		951
…		…
454		957
455	poll_wait ();	958	poll_wait ();
456	}	959	}
457	}	960	}
458		961
459	static void atfork_child (void)	962	ecb_cold
		963	static void
		964	reinit (void)
460	{	965	{
461	create_respipe ();	966	create_respipe ();
		967
		968	if (eio_init (want_poll, done_poll) < 0)
		969	croak ("IO::AIO: unable to initialise eio library");
462	}	970	}
		971
		972	/*****************************************************************************/
463		973
464	static SV *	974	static SV *
465	get_cb (SV *cb_sv)	975	get_cb (SV *cb_sv)
466	{	976	{
467	HV *st;	977	SvGETMAGIC (cb_sv);
468	GV *gvp;	978	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		979	}
		980
		981	ecb_noinline
		982	static aio_req ecb_noinline
		983	dreq (SV *callback)
		984	{
469	CV *cv;	985	SV *cb_cv;
		986	aio_req req;
		987	int req_pri = next_pri;
		988	next_pri = EIO_PRI_DEFAULT;
470		989
471	if (!SvOK (cb_sv))	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
472	return 0;	999	return req;
473
474	cv = sv_2cv (cb_sv, &st, &gvp, 0);
475
476	if (!cv)
477	croak ("IO::AIO callback must be undef or a CODE reference");
478
479	return (SV *)cv;
480	}	1000	}
481		1001
482	#define dREQ \	1002	#define dREQ \
483	SV *cb_cv; \	1003	aio_req req = dreq (callback); \
484	aio_req req; \
485	int req_pri = next_pri; \
486	next_pri = EIO_PRI_DEFAULT; \
487	\
488	cb_cv = get_cb (callback); \
489	\
490	Newz (0, req, 1, eio_req); \
491	if (!req) \
492	croak ("out of memory during eio_req allocation"); \
493	\
494	req->callback = SvREFCNT_inc (cb_cv); \
495	req->pri = req_pri
496		1004
497	#define REQ_SEND \	1005	#define REQ_SEND \
498	PUTBACK; \	1006	PUTBACK; \
499	req_submit (req); \	1007	req_submit (req); \
500	SPAGAIN; \	1008	SPAGAIN; \
501	\	1009	\
502	if (GIMME_V != G_VOID) \	1010	if (GIMME_V != G_VOID) \
503	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1011	XPUSHs (req_sv (req, aio_req_stash));
504		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	XS(boot_IO__AIO) ecb_cold;
		1099
505	MODULE = IO::AIO PACKAGE = IO::AIO	1100	MODULE = IO::AIO PACKAGE = IO::AIO
506		1101
507	PROTOTYPES: ENABLE	1102	PROTOTYPES: ENABLE
508		1103
509	BOOT:	1104	BOOT:
510	{	1105	{
		1106	static const struct {
		1107	const char *name;
		1108	IV iv;
		1109	} *civ, const_iv[] = {
		1110	# define const_niv(name, value) { # name, (IV) value },
		1111	# define const_iv(name) { # name, (IV) name },
		1112	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1113
		1114	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1115	/* the first block can be undef if missing */
		1116	const_iv (ENOSYS)
		1117	const_iv (EXDEV)
		1118	const_iv (EBADR)
		1119
		1120	/* for lseek */
		1121	const_iv (SEEK_DATA)
		1122	const_iv (SEEK_HOLE)
		1123
		1124	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1125	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1126	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1127	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1128	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1129	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1130
		1131	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1132	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1133	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1134	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1135	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1136
		1137	/* the second block will be 0 when missing */
		1138	const_iv (O_ACCMODE)
		1139
		1140	const_iv (O_RDONLY)
		1141	const_iv (O_WRONLY)
		1142	const_iv (O_RDWR)
		1143	const_iv (O_CREAT)
		1144	const_iv (O_TRUNC)
		1145	const_iv (O_EXCL)
		1146	const_iv (O_APPEND)
		1147
		1148	const_iv (O_ASYNC)
		1149	const_iv (O_DIRECT)
		1150	const_iv (O_NOATIME)
		1151
		1152	const_iv (O_CLOEXEC)
		1153	const_iv (O_NOCTTY)
		1154	const_iv (O_NOFOLLOW)
		1155	const_iv (O_NONBLOCK)
		1156	const_iv (O_EXEC)
		1157	const_iv (O_SEARCH)
		1158	const_iv (O_DIRECTORY)
		1159	const_iv (O_DSYNC)
		1160	const_iv (O_RSYNC)
		1161	const_iv (O_SYNC)
		1162	const_iv (O_PATH)
		1163	const_iv (O_TMPFILE)
		1164	const_iv (O_TTY_INIT)
		1165
		1166	const_iv (S_IFIFO)
		1167	const_iv (S_IFCHR)
		1168	const_iv (S_IFBLK)
		1169	const_iv (S_IFLNK)
		1170	const_iv (S_IFREG)
		1171	const_iv (S_IFDIR)
		1172	const_iv (S_IFWHT)
		1173	const_iv (S_IFSOCK)
		1174	const_iv (S_IFMT)
		1175
		1176	const_iv (ST_RDONLY)
		1177	const_iv (ST_NOSUID)
		1178	const_iv (ST_NODEV)
		1179	const_iv (ST_NOEXEC)
		1180	const_iv (ST_SYNCHRONOUS)
		1181	const_iv (ST_MANDLOCK)
		1182	const_iv (ST_WRITE)
		1183	const_iv (ST_APPEND)
		1184	const_iv (ST_IMMUTABLE)
		1185	const_iv (ST_NOATIME)
		1186	const_iv (ST_NODIRATIME)
		1187	const_iv (ST_RELATIME)
		1188
		1189	const_iv (PROT_NONE)
		1190	const_iv (PROT_EXEC)
		1191	const_iv (PROT_READ)
		1192	const_iv (PROT_WRITE)
		1193
		1194	const_iv (MAP_PRIVATE)
		1195	const_iv (MAP_SHARED)
		1196	const_iv (MAP_FIXED)
		1197	const_iv (MAP_ANONYMOUS)
		1198
		1199	/* linuxish */
		1200	const_iv (MAP_LOCKED)
		1201	const_iv (MAP_NORESERVE)
		1202	const_iv (MAP_POPULATE)
		1203	const_iv (MAP_NONBLOCK)
		1204	const_iv (MAP_GROWSDOWN)
		1205	const_iv (MAP_32BIT)
		1206	const_iv (MAP_HUGETLB)
		1207	const_iv (MAP_STACK)
		1208
		1209	const_iv (MREMAP_MAYMOVE)
		1210	const_iv (MREMAP_FIXED)
		1211
		1212	const_iv (MSG_CMSG_CLOEXEC)
		1213	const_iv (SOCK_CLOEXEC)
		1214
		1215	const_iv (F_DUPFD_CLOEXEC)
		1216
		1217	const_iv (F_ADD_SEALS)
		1218	const_iv (F_GET_SEALS)
		1219	const_iv (F_SEAL_SEAL)
		1220	const_iv (F_SEAL_SHRINK)
		1221	const_iv (F_SEAL_GROW)
		1222	const_iv (F_SEAL_WRITE)
		1223
		1224	const_iv (F_OFD_GETLK)
		1225	const_iv (F_OFD_SETLK)
		1226	const_iv (F_OFD_GETLKW)
		1227
		1228	const_iv (FIFREEZE)
		1229	const_iv (FITHAW)
		1230	const_iv (FITRIM)
		1231	const_iv (FICLONE)
		1232	const_iv (FICLONERANGE)
		1233	const_iv (FIDEDUPERANGE)
		1234
		1235	const_iv (FS_IOC_GETFLAGS)
		1236	const_iv (FS_IOC_SETFLAGS)
		1237	const_iv (FS_IOC_GETVERSION)
		1238	const_iv (FS_IOC_SETVERSION)
		1239	const_iv (FS_IOC_FIEMAP)
		1240	const_iv (FS_IOC_FSGETXATTR)
		1241	const_iv (FS_IOC_FSSETXATTR)
		1242	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1243	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1244	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1245
		1246	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1247
		1248	const_iv (FS_SECRM_FL)
		1249	const_iv (FS_UNRM_FL)
		1250	const_iv (FS_COMPR_FL)
		1251	const_iv (FS_SYNC_FL)
		1252	const_iv (FS_IMMUTABLE_FL)
		1253	const_iv (FS_APPEND_FL)
		1254	const_iv (FS_NODUMP_FL)
		1255	const_iv (FS_NOATIME_FL)
		1256	const_iv (FS_DIRTY_FL)
		1257	const_iv (FS_COMPRBLK_FL)
		1258	const_iv (FS_NOCOMP_FL)
		1259	const_iv (FS_ENCRYPT_FL)
		1260	const_iv (FS_BTREE_FL)
		1261	const_iv (FS_INDEX_FL)
		1262	const_iv (FS_JOURNAL_DATA_FL)
		1263	const_iv (FS_NOTAIL_FL)
		1264	const_iv (FS_DIRSYNC_FL)
		1265	const_iv (FS_TOPDIR_FL)
		1266	const_iv (FS_FL_USER_MODIFIABLE)
		1267
		1268	const_iv (FS_XFLAG_REALTIME)
		1269	const_iv (FS_XFLAG_PREALLOC)
		1270	const_iv (FS_XFLAG_IMMUTABLE)
		1271	const_iv (FS_XFLAG_APPEND)
		1272	const_iv (FS_XFLAG_SYNC)
		1273	const_iv (FS_XFLAG_NOATIME)
		1274	const_iv (FS_XFLAG_NODUMP)
		1275	const_iv (FS_XFLAG_RTINHERIT)
		1276	const_iv (FS_XFLAG_PROJINHERIT)
		1277	const_iv (FS_XFLAG_NOSYMLINKS)
		1278	const_iv (FS_XFLAG_EXTSIZE)
		1279	const_iv (FS_XFLAG_EXTSZINHERIT)
		1280	const_iv (FS_XFLAG_NODEFRAG)
		1281	const_iv (FS_XFLAG_FILESTREAM)
		1282	const_iv (FS_XFLAG_DAX)
		1283	const_iv (FS_XFLAG_HASATTR)
		1284
		1285	const_iv (FIEMAP_FLAG_SYNC)
		1286	const_iv (FIEMAP_FLAG_XATTR)
		1287	const_iv (FIEMAP_FLAGS_COMPAT)
		1288	const_iv (FIEMAP_EXTENT_LAST)
		1289	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1290	const_iv (FIEMAP_EXTENT_DELALLOC)
		1291	const_iv (FIEMAP_EXTENT_ENCODED)
		1292	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1293	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1294	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1295	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1296	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1297	const_iv (FIEMAP_EXTENT_MERGED)
		1298	const_iv (FIEMAP_EXTENT_SHARED)
		1299
		1300	const_iv (SPLICE_F_MOVE)
		1301	const_iv (SPLICE_F_NONBLOCK)
		1302	const_iv (SPLICE_F_MORE)
		1303	const_iv (SPLICE_F_GIFT)
		1304
		1305	const_iv (EFD_CLOEXEC)
		1306	const_iv (EFD_NONBLOCK)
		1307	const_iv (EFD_SEMAPHORE)
		1308
		1309	const_iv (MFD_CLOEXEC)
		1310	const_iv (MFD_ALLOW_SEALING)
		1311	const_iv (MFD_HUGETLB)
		1312
		1313	const_iv (CLOCK_REALTIME)
		1314	const_iv (CLOCK_MONOTONIC)
		1315	const_iv (CLOCK_BOOTTIME)
		1316	const_iv (CLOCK_REALTIME_ALARM)
		1317	const_iv (CLOCK_BOOTTIME_ALARM)
		1318
		1319	const_iv (TFD_NONBLOCK)
		1320	const_iv (TFD_CLOEXEC)
		1321
		1322	const_iv (TFD_TIMER_ABSTIME)
		1323	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1324
		1325	const_iv (STATX_TYPE)
		1326	const_iv (STATX_MODE)
		1327	const_iv (STATX_NLINK)
		1328	const_iv (STATX_UID)
		1329	const_iv (STATX_GID)
		1330	const_iv (STATX_ATIME)
		1331	const_iv (STATX_MTIME)
		1332	const_iv (STATX_CTIME)
		1333	const_iv (STATX_INO)
		1334	const_iv (STATX_SIZE)
		1335	const_iv (STATX_BLOCKS)
		1336	const_iv (STATX_BASIC_STATS)
		1337	const_iv (STATX_ALL)
		1338	const_iv (STATX_BTIME)
		1339	const_iv (STATX_ATTR_COMPRESSED)
		1340	const_iv (STATX_ATTR_IMMUTABLE)
		1341	const_iv (STATX_ATTR_APPEND)
		1342	const_iv (STATX_ATTR_NODUMP)
		1343	const_iv (STATX_ATTR_ENCRYPTED)
		1344	const_iv (STATX_ATTR_AUTOMOUNT)
		1345
		1346	const_iv (AT_FDCWD)
		1347	const_iv (AT_SYMLINK_NOFOLLOW)
		1348	const_iv (AT_EACCESS)
		1349	const_iv (AT_REMOVEDIR)
		1350	const_iv (AT_SYMLINK_FOLLOW)
		1351	const_iv (AT_NO_AUTOMOUNT)
		1352	const_iv (AT_EMPTY_PATH)
		1353	const_iv (AT_STATX_SYNC_TYPE)
		1354	const_iv (AT_STATX_AS_STAT)
		1355	const_iv (AT_STATX_FORCE_SYNC)
		1356	const_iv (AT_STATX_DONT_SYNC)
		1357	const_iv (AT_RECURSIVE)
		1358
		1359	const_iv (OPEN_TREE_CLONE)
		1360
		1361	const_iv (FSOPEN_CLOEXEC)
		1362
		1363	const_iv (FSPICK_CLOEXEC)
		1364	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1365	const_iv (FSPICK_NO_AUTOMOUNT)
		1366	const_iv (FSPICK_EMPTY_PATH)
		1367
		1368	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1369	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1370	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1371	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1372	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1373	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1374
		1375	/* waitid */
		1376	const_iv (P_PID)
		1377	const_iv (P_PIDFD)
		1378	const_iv (P_PGID)
		1379	const_iv (P_ALL)
		1380
		1381	const_iv (FSCONFIG_SET_FLAG)
		1382	const_iv (FSCONFIG_SET_STRING)
		1383	const_iv (FSCONFIG_SET_BINARY)
		1384	const_iv (FSCONFIG_SET_PATH)
		1385	const_iv (FSCONFIG_SET_PATH_EMPTY)
		1386	const_iv (FSCONFIG_SET_FD)
		1387	const_iv (FSCONFIG_CMD_CREATE)
		1388	const_iv (FSCONFIG_CMD_RECONFIGURE)
		1389
		1390	const_iv (MOUNT_ATTR_RDONLY)
		1391	const_iv (MOUNT_ATTR_NOSUID)
		1392	const_iv (MOUNT_ATTR_NODEV)
		1393	const_iv (MOUNT_ATTR_NOEXEC)
		1394	const_iv (MOUNT_ATTR__ATIME)
		1395	const_iv (MOUNT_ATTR_RELATIME)
		1396	const_iv (MOUNT_ATTR_NOATIME)
		1397	const_iv (MOUNT_ATTR_STRICTATIME)
		1398	const_iv (MOUNT_ATTR_NODIRATIME)
		1399
		1400	/* these are libeio constants, and are independent of gendef0 */
		1401	const_eio (SEEK_SET)
		1402	const_eio (SEEK_CUR)
		1403	const_eio (SEEK_END)
		1404
		1405	const_eio (MCL_FUTURE)
		1406	const_eio (MCL_CURRENT)
		1407	const_eio (MCL_ONFAULT)
		1408
		1409	const_eio (MS_ASYNC)
		1410	const_eio (MS_INVALIDATE)
		1411	const_eio (MS_SYNC)
		1412
		1413	const_eio (MT_MODIFY)
		1414
		1415	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1416	const_eio (SYNC_FILE_RANGE_WRITE)
		1417	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1418
		1419	const_eio (FALLOC_FL_KEEP_SIZE)
		1420	const_eio (FALLOC_FL_PUNCH_HOLE)
		1421	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1422	const_eio (FALLOC_FL_ZERO_RANGE)
		1423	const_eio (FALLOC_FL_INSERT_RANGE)
		1424	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1425
		1426	const_eio (RENAME_NOREPLACE)
		1427	const_eio (RENAME_EXCHANGE)
		1428	const_eio (RENAME_WHITEOUT)
		1429
		1430	const_eio (READDIR_DENTS)
		1431	const_eio (READDIR_DIRS_FIRST)
		1432	const_eio (READDIR_STAT_ORDER)
		1433	const_eio (READDIR_FOUND_UNKNOWN)
		1434
		1435	const_eio (DT_UNKNOWN)
		1436	const_eio (DT_FIFO)
		1437	const_eio (DT_CHR)
		1438	const_eio (DT_DIR)
		1439	const_eio (DT_BLK)
		1440	const_eio (DT_REG)
		1441	const_eio (DT_LNK)
		1442	const_eio (DT_SOCK)
		1443	const_eio (DT_WHT)
		1444	};
		1445
511	stash = gv_stashpv ("IO::AIO", 1);	1446	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1447	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1448	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1449	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
512		1450
513	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1451	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
514	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1452	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
515	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1453
516	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1454	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
517	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1455
		1456	/* allocate dummy pipe fd for aio_close */
		1457	{
		1458	int pipefd [2];
		1459
		1460	if (
518	#ifndef _WIN32	1461	#ifdef _WIN32
519	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1462	_pipe (pipefd, 1, _O_BINARY) < 0
		1463	#else
		1464	pipe (pipefd) < 0
		1465	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
520	#endif	1466	#endif
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1467	|| close (pipefd [1]) < 0
522	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));	1468	)
523	newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));	1469	croak ("IO::AIO: unable to create dummy pipe for aio_close");
524	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
525		1470
526	create_respipe ();	1471	close_fd = pipefd [0];
		1472	}
527		1473
528	if (eio_init (want_poll, done_poll) < 0)	1474	reinit ();
529	croak ("IO::AIO: unable to initialise eio library");
530
531	/* atfork child called in fifo order, so before eio's handler */
532	X_THREAD_ATFORK (0, 0, atfork_child);
533	}	1475	}
534		1476
535	void	1477	void
		1478	reinit ()
		1479	PROTOTYPE:
		1480
		1481	void
536	max_poll_reqs (int nreqs)	1482	max_poll_reqs (unsigned int nreqs)
537	PROTOTYPE: $	1483	PROTOTYPE: $
538	CODE:	1484	CODE:
539	eio_set_max_poll_reqs (nreqs);	1485	eio_set_max_poll_reqs (nreqs);
540		1486
541	void	1487	void
…		…
543	PROTOTYPE: $	1489	PROTOTYPE: $
544	CODE:	1490	CODE:
545	eio_set_max_poll_time (nseconds);	1491	eio_set_max_poll_time (nseconds);
546		1492
547	void	1493	void
548	min_parallel (int nthreads)	1494	min_parallel (unsigned int nthreads)
549	PROTOTYPE: $	1495	PROTOTYPE: $
550	CODE:	1496	CODE:
551	eio_set_min_parallel (nthreads);	1497	eio_set_min_parallel (nthreads);
552		1498
553	void	1499	void
554	max_parallel (int nthreads)	1500	max_parallel (unsigned int nthreads)
555	PROTOTYPE: $	1501	PROTOTYPE: $
556	CODE:	1502	CODE:
557	eio_set_max_parallel (nthreads);	1503	eio_set_max_parallel (nthreads);
558		1504
559	void	1505	void
560	max_idle (int nthreads)	1506	max_idle (unsigned int nthreads)
561	PROTOTYPE: $	1507	PROTOTYPE: $
562	CODE:	1508	CODE:
563	eio_set_max_idle (nthreads);	1509	eio_set_max_idle (nthreads);
564		1510
565	void	1511	void
		1512	idle_timeout (unsigned int seconds)
		1513	PROTOTYPE: $
		1514	CODE:
		1515	eio_set_idle_timeout (seconds);
		1516
		1517	void
566	max_outstanding (int maxreqs)	1518	max_outstanding (unsigned int maxreqs)
567	PROTOTYPE: $	1519	PROTOTYPE: $
568	CODE:	1520	CODE:
569	max_outstanding = maxreqs;	1521	max_outstanding = maxreqs;
570		1522
571	void	1523	void
572	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1524	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
573	PROTOTYPE: $$$;$
574	PPCODE:	1525	PPCODE:
575	{	1526	{
576	dREQ;	1527	dREQ;
577		1528
		1529	req->type = EIO_WD_OPEN;
		1530	req_set_path1 (req, pathname);
		1531
		1532	REQ_SEND;
		1533	}
		1534
		1535	void
		1536	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1537	PPCODE:
		1538	{
		1539	dREQ;
		1540
578	req->type = EIO_OPEN;	1541	req->type = EIO_OPEN;
579	req->sv1 = newSVsv (pathname);	1542	req_set_path1 (req, pathname);
580	req->ptr1 = SvPVbyte_nolen (req->sv1);
581	req->int1 = flags;	1543	req->int1 = flags;
582	req->int2 = mode;	1544	req->int2 = mode;
583		1545
584	REQ_SEND;	1546	REQ_SEND;
585	}	1547	}
586		1548
587	void	1549	void
588	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1550	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
589	PROTOTYPE: $;$
590	ALIAS:	1551	ALIAS:
591	aio_fsync = EIO_FSYNC	1552	aio_fsync = EIO_FSYNC
592	aio_fdatasync = EIO_FDATASYNC	1553	aio_fdatasync = EIO_FDATASYNC
		1554	aio_syncfs = EIO_SYNCFS
593	PPCODE:	1555	PPCODE:
594	{	1556	{
		1557	int fd = s_fileno_croak (fh, 0);
595	dREQ;	1558	dREQ;
596		1559
597	req->type = ix;	1560	req->type = ix;
598	req->sv1 = newSVsv (fh);	1561	req->sv1 = newSVsv (fh);
599	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1562	req->int1 = fd;
600		1563
601	REQ_SEND (req);	1564	REQ_SEND;
602	}	1565	}
603		1566
604	void	1567	void
605	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1568	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
606	PROTOTYPE: $$$$;$
607	PPCODE:	1569	PPCODE:
608	{	1570	{
		1571	int fd = s_fileno_croak (fh, 0);
609	dREQ;	1572	dREQ;
610		1573
611	req->type = EIO_SYNC_FILE_RANGE;	1574	req->type = EIO_SYNC_FILE_RANGE;
612	req->sv1 = newSVsv (fh);	1575	req->sv1 = newSVsv (fh);
613	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1576	req->int1 = fd;
		1577	req->offs = offset;
		1578	req->size = nbytes;
		1579	req->int2 = flags;
		1580
		1581	REQ_SEND;
		1582	}
		1583
		1584	void
		1585	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1586	PPCODE:
		1587	{
		1588	int fd = s_fileno_croak (fh, 0);
		1589	dREQ;
		1590
		1591	req->type = EIO_FALLOCATE;
		1592	req->sv1 = newSVsv (fh);
		1593	req->int1 = fd;
		1594	req->int2 = mode;
		1595	req->offs = offset;
		1596	req->size = len;
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
		1602	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1603	PPCODE:
		1604	{
		1605	int fd = s_fileno_croak (fh, 0);
		1606	dREQ;
		1607	#if 0
		1608	/* partially duplicate logic in s_fileno */
		1609	SvGETMAGIC (fh);
		1610
		1611	if (SvROK (fh))
		1612	{
		1613	fh = SvRV (fh);
		1614	SvGETMAGIC (fh);
		1615	}
		1616
		1617	if (SvTYPE (fh) == SVt_PVGV)
		1618	{
		1619	/* perl filehandle */
		1620	PerlIOUnix_refcnt_inc (fd);
		1621	do_close ((GV *)fh, 1);
		1622
		1623	req->type = EIO_CLOSE;
		1624	req->int1 = fd;
		1625	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
		1626	}
		1627	else
		1628	#endif
		1629	{
		1630	/* fd number */
		1631	req->type = EIO_DUP2;
		1632	req->int1 = close_fd;
		1633	req->sv2 = newSVsv (fh);
		1634	req->int2 = fd;
		1635	}
		1636
		1637	REQ_SEND;
		1638	}
		1639
		1640	void
		1641	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1642	PPCODE:
		1643	{
		1644	int fd = s_fileno_croak (fh, 0);
		1645	dREQ;
		1646
		1647	req->type = EIO_SEEK;
		1648	req->sv1 = newSVsv (fh);
		1649	req->int1 = fd;
614	req->offs = SvVAL64 (offset);	1650	req->offs = SvVAL64 (offset);
615	req->size = SvVAL64 (nbytes);
616	req->int2 = flags;	1651	req->int2 = whence;
617		1652
618	REQ_SEND (req);	1653	REQ_SEND;
619	}	1654	}
620		1655
621	void	1656	void
622	aio_close (SV *fh, SV *callback=&PL_sv_undef)
623	PROTOTYPE: $;$
624	PPCODE:
625	{
626	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
627	dREQ;
628
629	if (close_pipe < 0)
630	{
631	int pipefd [2];
632
633	if (pipe (pipefd) < 0
634	|| close (pipefd [1]) < 0
635	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
636	abort (); /*D*/
637
638	close_pipe = pipefd [0];
639	}
640
641	req->type = EIO_DUP2;
642	req->int1 = close_pipe;
643	req->sv2 = newSVsv (fh);
644	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));
645
646	REQ_SEND (req);
647	}
648
649	void
650	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1657	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
651	ALIAS:	1658	ALIAS:
652	aio_read = EIO_READ	1659	aio_read = EIO_READ
653	aio_write = EIO_WRITE	1660	aio_write = EIO_WRITE
654	PROTOTYPE: $$$$$;$
655	PPCODE:	1661	PPCODE:
656	{	1662	{
657	STRLEN svlen;	1663	STRLEN svlen;
		1664	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
658	char *svptr = SvPVbyte (data, svlen);	1665	char *svptr = SvPVbyte (data, svlen);
659	UV len = SvUV (length);	1666	UV len = SvUV (length);
660	int fd;
661
662	if (SvTYPE (data) > SVt_PVMG)
663	croak ("illegal data argument '%s', must be plain scalar string", SvPV_nolen (data));
664
665	SvUPGRADE (data, SVt_PV);
666	SvPOK_only (data);
667		1667
668	if (dataoffset < 0)	1668	if (dataoffset < 0)
669	dataoffset += svlen;	1669	dataoffset += svlen;
670		1670
671	if (dataoffset < 0 || dataoffset > svlen)	1671	if (dataoffset < 0 || dataoffset > svlen)
…		…
677	if (!SvOK (length) || len + dataoffset > svlen)	1677	if (!SvOK (length) || len + dataoffset > svlen)
678	len = svlen - dataoffset;	1678	len = svlen - dataoffset;
679	}	1679	}
680	else	1680	else
681	{	1681	{
682	/* read: grow scalar as necessary */	1682	/* read: check type and grow scalar as necessary */
		1683	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
683	svptr = SvGROW (data, len + dataoffset + 1);	1684	svptr = sv_grow (data, len + dataoffset + 1);
		1685	else if (SvCUR (data) < len + dataoffset)
		1686	croak ("length + dataoffset outside of scalar, and cannot grow");
684	}	1687	}
685
686	if (len < 0)
687	croak ("length must not be negative");
688
689	fd = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
690	: IoOFP (sv_2io (fh)));
691
692	if (fd < 0)
693	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
694		1688
695	{	1689	{
696	dREQ;	1690	dREQ;
697		1691
698	req->type = ix;	1692	req->type = ix;
699	req->sv1 = newSVsv (fh);	1693	req->sv1 = newSVsv (fh);
700	req->int1 = df;	1694	req->int1 = fd;
701	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1695	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
702	req->size = len;	1696	req->size = len;
703	req->sv2 = SvREFCNT_inc (data);	1697	req->sv2 = SvREFCNT_inc (data);
704	req->ptr2 = (char *)svptr + dataoffset;	1698	req->ptr2 = (char *)svptr + dataoffset;
705	req->stroffset = dataoffset;	1699	req->stroffset = dataoffset;
…		…
713	REQ_SEND;	1707	REQ_SEND;
714	}	1708	}
715	}	1709	}
716		1710
717	void	1711	void
718	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1712	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
719	PROTOTYPE: $$;$	1713	ALIAS:
		1714	aio_ioctl = EIO_IOCTL
		1715	aio_fcntl = EIO_FCNTL
720	PPCODE:	1716	PPCODE:
721	{	1717	{
722	SV *data;	1718	int fd = s_fileno_croak (fh, 0);
		1719	char *svptr;
		1720
		1721	if (SvPOK (arg) || !SvNIOK (arg))
		1722	{
		1723	STRLEN svlen;
		1724	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1725	#ifdef IOCPARM_LEN
		1726	STRLEN need = IOCPARM_LEN (request);
		1727	#else
		1728	STRLEN need = 256;
		1729	#endif
		1730
		1731	if (svlen < need)
		1732	svptr = SvGROW (arg, need);
		1733	}
		1734	else
		1735	svptr = (char *)SvIV (arg);
		1736
		1737	{
		1738	dREQ;
		1739
		1740	req->type = ix;
		1741	req->sv1 = newSVsv (fh);
		1742	req->int1 = fd;
		1743	req->int2 = (long)request;
		1744	req->sv2 = SvREFCNT_inc (arg);
		1745	req->ptr2 = svptr;
		1746
		1747	REQ_SEND;
		1748	}
		1749	}
		1750
		1751	void
		1752	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1753	ALIAS:
		1754	aio_readlink = EIO_READLINK
		1755	aio_realpath = EIO_REALPATH
		1756	PPCODE:
		1757	{
723	dREQ;	1758	dREQ;
724		1759
725	req->type = EIO_READLINK;	1760	req->type = ix;
726	req->sv1 = newSVsv (path);	1761	req_set_path1 (req, pathname);
727	req->ptr1 = SvPVbyte_nolen (req->sv1);
728		1762
729	REQ_SEND;	1763	REQ_SEND;
730	}	1764	}
731		1765
732	void	1766	void
733	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1767	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
734	PROTOTYPE: $$$$;$
735	PPCODE:	1768	PPCODE:
736	{	1769	{
		1770	int ifd = s_fileno_croak (in_fh , 0);
		1771	int ofd = s_fileno_croak (out_fh, 1);
737	dREQ;	1772	dREQ;
738		1773
739	req->type = EIO_SENDFILE;	1774	req->type = EIO_SENDFILE;
740	req->sv1 = newSVsv (out_fh);	1775	req->sv1 = newSVsv (out_fh);
741	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1776	req->int1 = ofd;
742	req->sv2 = newSVsv (in_fh);	1777	req->sv2 = newSVsv (in_fh);
743	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1778	req->int2 = ifd;
744	req->offs = SvVAL64 (in_offset);	1779	req->offs = in_offset;
745	req->size = length;	1780	req->size = length;
746		1781
747	REQ_SEND;	1782	REQ_SEND;
748	}	1783	}
749		1784
750	void	1785	void
751	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1786	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
752	PROTOTYPE: $$$;$
753	PPCODE:	1787	PPCODE:
754	{	1788	{
		1789	int fd = s_fileno_croak (fh, 0);
755	dREQ;	1790	dREQ;
756		1791
757	req->type = EIO_READAHEAD;	1792	req->type = EIO_READAHEAD;
758	req->sv1 = newSVsv (fh);	1793	req->sv1 = newSVsv (fh);
759	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1794	req->int1 = fd;
760	req->offs = SvVAL64 (offset);	1795	req->offs = offset;
761	req->size = length;	1796	req->size = length;
762		1797
763	REQ_SEND;	1798	REQ_SEND;
764	}	1799	}
765		1800
766	void	1801	void
767	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1802	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
768	ALIAS:	1803	ALIAS:
769	aio_stat = EIO_STAT	1804	aio_stat = EIO_STAT
770	aio_lstat = EIO_LSTAT	1805	aio_lstat = EIO_LSTAT
		1806	aio_statvfs = EIO_STATVFS
771	PPCODE:	1807	PPCODE:
772	{	1808	{
773	dREQ;	1809	dREQ;
774		1810
775	req->sv1 = newSVsv (fh_or_path);	1811	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
776
777	if (SvPOK (req->sv1))
778	{
779	req->type = ix;
780	req->ptr1 = SvPVbyte_nolen (req->sv1);
781	}
782	else
783	{
784	req->type = EIO_FSTAT;
785	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
786	}
787		1812
788	REQ_SEND;	1813	REQ_SEND;
789	}	1814	}
790		1815
791	void	1816	void
		1817	st_xtime ()
		1818	ALIAS:
		1819	st_atime = 0x01
		1820	st_mtime = 0x02
		1821	st_ctime = 0x04
		1822	st_btime = 0x08
		1823	st_xtime = 0x0f
		1824	PPCODE:
		1825	EXTEND (SP, 4);
		1826	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1827	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1828	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1829	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1830
		1831	void
		1832	st_xtimensec ()
		1833	ALIAS:
		1834	st_atimensec = 0x01
		1835	st_mtimensec = 0x02
		1836	st_ctimensec = 0x04
		1837	st_btimensec = 0x08
		1838	st_xtimensec = 0x0f
		1839	st_btimesec = 0x10
		1840	st_gen = 0x20
		1841	PPCODE:
		1842	EXTEND (SP, 4);
		1843	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1844	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1845	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1846	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1847	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1848	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1849
		1850	UV
		1851	major (UV dev)
		1852	ALIAS:
		1853	minor = 1
		1854	CODE:
		1855	RETVAL = ix ? minor (dev) : major (dev);
		1856	OUTPUT:
		1857	RETVAL
		1858
		1859	UV
		1860	makedev (UV maj, UV min)
		1861	CODE:
		1862	RETVAL = makedev (maj, min);
		1863	OUTPUT:
		1864	RETVAL
		1865
		1866	void
792	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1867	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
793	PPCODE:	1868	PPCODE:
794	{	1869	{
795	dREQ;	1870	dREQ;
796		1871
797	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1872	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
798	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1873	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
799	req->sv1 = newSVsv (fh_or_path);	1874	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
800
801	if (SvPOK (req->sv1))
802	{
803	req->type = EIO_UTIME;
804	req->ptr1 = SvPVbyte_nolen (req->sv1);
805	}
806	else
807	{
808	req->type = EIO_FUTIME;
809	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
810	}
811		1875
812	REQ_SEND;	1876	REQ_SEND;
813	}	1877	}
814		1878
815	void	1879	void
816	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1880	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
817	PPCODE:	1881	PPCODE:
818	{	1882	{
819	dREQ;	1883	dREQ;
820		1884
821	req->sv1 = newSVsv (fh_or_path);
822	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1885	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
823		1886	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
824	if (SvPOK (req->sv1))
825	{
826	req->type = EIO_TRUNCATE;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}
829	else
830	{
831	req->type = EIO_FTRUNCATE;
832	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
833	}
834		1887
835	REQ_SEND;	1888	REQ_SEND;
836	}	1889	}
837		1890
838	void	1891	void
839	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1892	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
840	ALIAS:
841	aio_chmod = EIO_CHMOD
842	aio_mkdir = EIO_MKDIR
843	PPCODE:	1893	PPCODE:
844	{	1894	{
845	dREQ;	1895	dREQ;
846		1896
847	req->int2 = mode;	1897	req->int2 = mode;
848	req->sv1 = newSVsv (fh_or_path);	1898	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
849
850	if (SvPOK (req->sv1))
851	{
852	req->type = ix;
853	req->ptr1 = SvPVbyte_nolen (req->sv1);
854	}
855	else
856	{
857	req->type = EIO_FCHMOD;
858	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
859	}
860		1899
861	REQ_SEND;	1900	REQ_SEND;
862	}	1901	}
863		1902
864	void	1903	void
865	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1904	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
866	PPCODE:	1905	PPCODE:
867	{	1906	{
868	dREQ;	1907	dREQ;
869		1908
870	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1909	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
871	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1910	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
872	req->sv1 = newSVsv (fh_or_path);	1911	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
873
874	if (SvPOK (req->sv1))
875	{
876	req->type = EIO_CHOWN;
877	req->ptr1 = SvPVbyte_nolen (req->sv1);
878	}
879	else
880	{
881	req->type = EIO_FCHOWN;
882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883	}
884		1912
885	REQ_SEND;	1913	REQ_SEND;
886	}	1914	}
887		1915
888	void	1916	void
		1917	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1918	PPCODE:
		1919	{
		1920	dREQ;
		1921
		1922	req->type = EIO_READDIR;
		1923	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1924
		1925	if (flags & EIO_READDIR_DENTS)
		1926	req->int1 |= EIO_READDIR_CUSTOM2;
		1927
		1928	req_set_path1 (req, pathname);
		1929
		1930	REQ_SEND;
		1931	}
		1932
		1933	void
		1934	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1935	PPCODE:
		1936	{
		1937	dREQ;
		1938
		1939	req->type = EIO_MKDIR;
		1940	req->int2 = mode;
		1941	req_set_path1 (req, pathname);
		1942
		1943	REQ_SEND;
		1944	}
		1945
		1946	void
889	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1947	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
890	ALIAS:	1948	ALIAS:
891	aio_unlink = EIO_UNLINK	1949	aio_unlink = EIO_UNLINK
892	aio_rmdir = EIO_RMDIR	1950	aio_rmdir = EIO_RMDIR
893	aio_readdir = EIO_READDIR	1951	aio_readdir = EIO_READDIR
894	PPCODE:	1952	PPCODE:
895	{	1953	{
896	dREQ;	1954	dREQ;
897		1955
898	req->type = ix;	1956	req->type = ix;
899	req->sv1 = newSVsv (pathname);	1957	req_set_path1 (req, pathname);
900	req->ptr1 = SvPVbyte_nolen (req->sv1);
901		1958
902	REQ_SEND;	1959	REQ_SEND;
903	}	1960	}
904		1961
905	void	1962	void
906	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1963	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
907	ALIAS:	1964	ALIAS:
908	aio_link = EIO_LINK	1965	aio_link = EIO_LINK
909	aio_symlink = EIO_SYMLINK	1966	aio_symlink = EIO_SYMLINK
910	aio_rename = EIO_RENAME	1967	aio_rename = EIO_RENAME
911	PPCODE:	1968	PPCODE:
912	{	1969	{
		1970	eio_wd wd2 = 0;
913	dREQ;	1971	dREQ;
914		1972
915	req->type = ix;	1973	req->type = ix;
916	req->sv1 = newSVsv (oldpath);	1974	req_set_path1 (req, oldpath);
917	req->ptr1 = SvPVbyte_nolen (req->sv1);	1975	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
918	req->sv2 = newSVsv (newpath);	1976	req->int3 = (long)wd2;
919	req->ptr2 = SvPVbyte_nolen (req->sv2);
920		1977
921	REQ_SEND;	1978	REQ_SEND;
922	}	1979	}
923		1980
924	void	1981	void
		1982	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1983	PPCODE:
		1984	{
		1985	eio_wd wd2 = 0;
		1986	dREQ;
		1987
		1988	req->type = EIO_RENAME;
		1989	req_set_path1 (req, oldpath);
		1990	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1991	req->int2 = flags;
		1992	req->int3 = (long)wd2;
		1993
		1994	REQ_SEND;
		1995	}
		1996
		1997	void
925	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1998	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
926	PPCODE:	1999	PPCODE:
927	{	2000	{
928	dREQ;	2001	dREQ;
929		2002
930	req->type = EIO_MKNOD;	2003	req->type = EIO_MKNOD;
931	req->sv1 = newSVsv (pathname);
932	req->ptr1 = SvPVbyte_nolen (req->sv1);
933	req->int2 = (mode_t)mode;	2004	req->int2 = (mode_t)mode;
934	req->offs = dev;	2005	req->offs = dev;
		2006	req_set_path1 (req, pathname);
935		2007
936	REQ_SEND;	2008	REQ_SEND;
937	}	2009	}
938		2010
939	void	2011	void
		2012	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		2013	ALIAS:
		2014	aio_mtouch = EIO_MTOUCH
		2015	aio_msync = EIO_MSYNC
		2016	PPCODE:
		2017	{
		2018	STRLEN svlen;
		2019	char *svptr = SvPVbyte (data, svlen);
		2020	UV len = SvUV (length);
		2021
		2022	if (flags < 0)
		2023	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		2024
		2025	if (offset < 0)
		2026	offset += svlen;
		2027
		2028	if (offset < 0 || offset > svlen)
		2029	croak ("offset outside of scalar");
		2030
		2031	if (!SvOK (length) || len + offset > svlen)
		2032	len = svlen - offset;
		2033
		2034	{
		2035	dREQ;
		2036
		2037	req->type = ix;
		2038	req->sv2 = SvREFCNT_inc (data);
		2039	req->ptr2 = (char *)svptr + offset;
		2040	req->size = len;
		2041	req->int1 = flags;
		2042
		2043	REQ_SEND;
		2044	}
		2045	}
		2046
		2047	void
		2048	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		2049	PPCODE:
		2050	{
		2051	STRLEN svlen;
		2052	char *svptr = SvPVbyte (data, svlen);
		2053	UV len = SvUV (length);
		2054
		2055	if (offset < 0)
		2056	offset += svlen;
		2057
		2058	if (offset < 0 || offset > svlen)
		2059	croak ("offset outside of scalar");
		2060
		2061	if (!SvOK (length) || len + offset > svlen)
		2062	len = svlen - offset;
		2063
		2064	{
		2065	dREQ;
		2066
		2067	req->type = EIO_MLOCK;
		2068	req->sv2 = SvREFCNT_inc (data);
		2069	req->ptr2 = (char *)svptr + offset;
		2070	req->size = len;
		2071
		2072	REQ_SEND;
		2073	}
		2074	}
		2075
		2076	void
		2077	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		2078	PPCODE:
		2079	{
		2080	dREQ;
		2081
		2082	req->type = EIO_MLOCKALL;
		2083	req->int1 = flags;
		2084
		2085	REQ_SEND;
		2086	}
		2087
		2088	void
		2089	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		2090	PPCODE:
		2091	{
		2092	int fd = s_fileno_croak (fh, 0);
		2093	dREQ;
		2094
		2095	req->type = EIO_CUSTOM;
		2096	req->sv1 = newSVsv (fh);
		2097	req->int1 = fd;
		2098
		2099	req->feed = fiemap;
		2100	#if HAVE_FIEMAP
		2101	/* keep our fingers crossed that the next two types are 64 bit */
		2102	req->offs = start;
		2103	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		2104	req->int2 = flags;
		2105	req->int3 = SvOK (count) ? SvIV (count) : -1;
		2106	#endif
		2107
		2108	REQ_SEND;
		2109	}
		2110
		2111	void
		2112	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2113	PPCODE:
		2114	{
		2115	char *svptr = 0;
		2116
		2117	sv_clear_foreign (data);
		2118
		2119	if (length) /* known length, directly read into scalar */
		2120	{
		2121	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2122	svptr = sv_grow (data, length + 1);
		2123	else if (SvCUR (data) < length)
		2124	croak ("length outside of scalar, and cannot grow");
		2125	else
		2126	svptr = SvPVbyte_nolen (data);
		2127	}
		2128
		2129	{
		2130	dREQ;
		2131
		2132	req->type = EIO_SLURP;
		2133	req_set_path1 (req, pathname);
		2134	req->offs = offset;
		2135	req->size = length;
		2136	req->sv2 = SvREFCNT_inc (data);
		2137	req->ptr2 = svptr;
		2138
		2139	if (!SvREADONLY (data))
		2140	{
		2141	SvREADONLY_on (data);
		2142	req->flags |= FLAG_SV2_RO_OFF;
		2143	}
		2144
		2145	REQ_SEND;
		2146	}
		2147	}
		2148
		2149	void
940	aio_busy (double delay, SV *callback=&PL_sv_undef)	2150	aio_busy (double delay, SV *callback = &PL_sv_undef)
941	PPCODE:	2151	PPCODE:
942	{	2152	{
943	dREQ;	2153	dREQ;
944		2154
945	req->type = EIO_BUSY;	2155	req->type = EIO_BUSY;
…		…
947		2157
948	REQ_SEND;	2158	REQ_SEND;
949	}	2159	}
950		2160
951	void	2161	void
952	aio_group (SV *callback=&PL_sv_undef)	2162	aio_group (SV *callback = &PL_sv_undef)
953	PROTOTYPE: ;$
954	PPCODE:	2163	PPCODE:
955	{	2164	{
956	dREQ;	2165	dREQ;
957		2166
958	req->type = EIO_GROUP;	2167	req->type = EIO_GROUP;
959		2168
		2169	PUTBACK;
960	req_submit (req);	2170	req_submit (req);
		2171	SPAGAIN;
		2172
961	XPUSHs (req_sv (req, AIO_GRP_KLASS));	2173	XPUSHs (req_sv (req, aio_grp_stash));
962	}	2174	}
963		2175
964	void	2176	void
965	aio_nop (SV *callback=&PL_sv_undef)	2177	aio_nop (SV *callback = &PL_sv_undef)
966	ALIAS:	2178	ALIAS:
967	aio_nop = EIO_NOP	2179	aio_nop = EIO_NOP
968	aio_sync = EIO_SYNC	2180	aio_sync = EIO_SYNC
969	PPCODE:	2181	PPCODE:
970	{	2182	{
…		…
974		2186
975	REQ_SEND;	2187	REQ_SEND;
976	}	2188	}
977		2189
978	int	2190	int
979	aioreq_pri (int pri = 0)	2191	aioreq_pri (int pri = NO_INIT)
980	PROTOTYPE: ;$
981	CODE:	2192	CODE:
982	RETVAL = next_pri;	2193	RETVAL = next_pri;
983	if (items > 0)	2194	if (items > 0)
984	{	2195	{
985	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2196	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
997	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2208	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
998	next_pri = nice;	2209	next_pri = nice;
999		2210
1000	void	2211	void
1001	flush ()	2212	flush ()
1002	PROTOTYPE:
1003	CODE:	2213	CODE:
1004	while (eio_nreqs ())	2214	while (eio_nreqs ())
1005	{	2215	{
1006	poll_wait ();	2216	poll_wait ();
1007	poll_cb ();	2217	poll_cb ();
1008	}	2218	}
1009		2219
1010	int	2220	int
1011	poll()	2221	poll ()
1012	PROTOTYPE:
1013	CODE:	2222	CODE:
1014	poll_wait ();	2223	poll_wait ();
1015	RETVAL = poll_cb ();	2224	RETVAL = poll_cb ();
1016	OUTPUT:	2225	OUTPUT:
1017	RETVAL	2226	RETVAL
1018		2227
1019	int	2228	int
1020	poll_fileno()	2229	poll_fileno ()
1021	PROTOTYPE:
1022	CODE:	2230	CODE:
1023	RETVAL = respipe [0];	2231	RETVAL = s_epipe_fd (&respipe);
1024	OUTPUT:	2232	OUTPUT:
1025	RETVAL	2233	RETVAL
1026		2234
1027	int	2235	int
1028	poll_cb(...)	2236	poll_cb (...)
1029	PROTOTYPE:	2237	PROTOTYPE:
1030	CODE:	2238	CODE:
1031	RETVAL = poll_cb ();	2239	RETVAL = poll_cb ();
1032	OUTPUT:	2240	OUTPUT:
1033	RETVAL	2241	RETVAL
1034		2242
1035	void	2243	void
1036	poll_wait()	2244	poll_wait ()
1037	PROTOTYPE:
1038	CODE:	2245	CODE:
1039	poll_wait ();	2246	poll_wait ();
1040		2247
1041	int	2248	int
1042	nreqs()	2249	nreqs ()
1043	PROTOTYPE:
1044	CODE:	2250	CODE:
1045	RETVAL = eio_nreqs ();	2251	RETVAL = eio_nreqs ();
1046	OUTPUT:	2252	OUTPUT:
1047	RETVAL	2253	RETVAL
1048		2254
1049	int	2255	int
1050	nready()	2256	nready ()
1051	PROTOTYPE:
1052	CODE:	2257	CODE:
1053	RETVAL = eio_nready ();	2258	RETVAL = eio_nready ();
1054	OUTPUT:	2259	OUTPUT:
1055	RETVAL	2260	RETVAL
1056		2261
1057	int	2262	int
1058	npending()	2263	npending ()
1059	PROTOTYPE:
1060	CODE:	2264	CODE:
1061	RETVAL = eio_npending ();	2265	RETVAL = eio_npending ();
1062	OUTPUT:	2266	OUTPUT:
1063	RETVAL	2267	RETVAL
1064		2268
1065	int	2269	int
1066	nthreads()	2270	nthreads ()
1067	PROTOTYPE:
1068	CODE:	2271	CODE:
1069	RETVAL = eio_nthreads ();	2272	RETVAL = eio_nthreads ();
1070	OUTPUT:	2273	OUTPUT:
1071	RETVAL	2274	RETVAL
1072		2275
		2276	int
		2277	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2278	CODE:
		2279	RETVAL = posix_fadvise (fh, offset, length, advice);
		2280	OUTPUT:
		2281	RETVAL
		2282
		2283	IV
		2284	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2285	CODE:
		2286	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2287	OUTPUT:
		2288	RETVAL
		2289
		2290	void
		2291	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2292	PPCODE:
		2293	sv_clear_foreign (scalar);
		2294	{
		2295	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2296	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2297	if (addr == (void *)-1)
		2298	XSRETURN_NO;
		2299
		2300	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2301
		2302	if (!(prot & PROT_WRITE))
		2303	SvREADONLY_on (scalar);
		2304
		2305	XSRETURN_YES;
		2306	}
		2307
		2308	void
		2309	munmap (SV *scalar)
		2310	CODE:
		2311	sv_clear_foreign (scalar);
		2312
		2313	SV *
		2314	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2315	CODE:
		2316	{
		2317	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2318	void *new;
		2319
		2320	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2321	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2322
		2323	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2324
		2325	RETVAL = &PL_sv_no;
		2326
		2327	if (new != (void *)-1)
		2328	{
		2329	RETVAL = new == (void *)mg->mg_ptr
		2330	? newSVpvn ("0 but true", 10)
		2331	: &PL_sv_yes;
		2332
		2333	mg->mg_ptr = (char *)new;
		2334	mg->mg_obj = (SV *)new_length;
		2335
		2336	SvPVX (scalar) = mg->mg_ptr;
		2337	SvCUR_set (scalar, new_length);
		2338	}
		2339	}
		2340	OUTPUT:
		2341	RETVAL
		2342
		2343	int
		2344	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2345	ALIAS:
		2346	mprotect = 1
		2347	CODE:
		2348	{
		2349	STRLEN svlen;
		2350	void *addr = SvPVbyte (scalar, svlen);
		2351	STRLEN len = SvUV (length);
		2352
		2353	if (offset < 0)
		2354	offset += svlen;
		2355
		2356	if (offset < 0 || offset > svlen)
		2357	croak ("offset outside of scalar");
		2358
		2359	if (!SvOK (length) || len + offset > svlen)
		2360	len = svlen - offset;
		2361
		2362	addr = (void *)(((intptr_t)addr) + offset);
		2363	eio_page_align (&addr, &len);
		2364
		2365	switch (ix)
		2366	{
		2367	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2368	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2369	}
		2370	}
		2371	OUTPUT:
		2372	RETVAL
		2373
		2374	int
		2375	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
		2376	CODE:
		2377	{
		2378	STRLEN svlen;
		2379	void *addr = SvPVbyte (scalar, svlen);
		2380	size_t len = SvUV (length);
		2381
		2382	if (offset < 0)
		2383	offset += svlen;
		2384
		2385	if (offset < 0 || offset > svlen)
		2386	croak ("offset outside of scalar");
		2387
		2388	if (!SvOK (length) || len + offset > svlen)
		2389	len = svlen - offset;
		2390
		2391	addr = (void *)(((intptr_t)addr) + offset);
		2392	eio_page_align (&addr, &len);
		2393	#if _POSIX_MEMLOCK_RANGE
		2394	RETVAL = munlock (addr, len);
		2395	#else
		2396	RETVAL = EIO_ENOSYS ();
		2397	#endif
		2398	}
		2399	OUTPUT:
		2400	RETVAL
		2401
		2402	int
		2403	mlockall (int flags)
		2404	PROTOTYPE: $;
		2405	CODE:
		2406	RETVAL = eio_mlockall_sync (flags);
		2407	OUTPUT:
		2408	RETVAL
		2409
		2410	int
		2411	munlockall ()
		2412	CODE:
		2413	#if _POSIX_MEMLOCK
		2414	munlockall ();
		2415	#else
		2416	RETVAL = EIO_ENOSYS ();
		2417	#endif
		2418	OUTPUT:
		2419	RETVAL
		2420
		2421	int
		2422	statx (SV8 *pathname, int flags, UV mask)
		2423	CODE:
		2424	{
		2425	/* undocumented, and might go away, and anyway, should use eio_statx */
		2426	SV *wdsv = 0;
		2427	SV *pathsv = 0;
		2428	eio_wd wd = EIO_CWD;
		2429	void *ptr;
		2430	int res;
		2431
		2432	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2433	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2434
		2435	SvREFCNT_dec (pathsv);
		2436	SvREFCNT_dec (wdsv);
		2437	}
		2438	OUTPUT:
		2439	RETVAL
		2440
		2441	U32
		2442	stx_mode ()
		2443	PROTOTYPE:
		2444	CODE:
		2445	#if HAVE_STATX
		2446	RETVAL = stx.stx_mode;
		2447	#else
		2448	XSRETURN_UNDEF;
		2449	#endif
		2450	OUTPUT:
		2451	RETVAL
		2452
		2453	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2454	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2455	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2456	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2457	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2458	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2459	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2460	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2461	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2462	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2463	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2464	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2465	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2466	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2467	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2468	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2469	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2470	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2471
		2472	U32
		2473	stx_mask ()
		2474	PROTOTYPE:
		2475	ALIAS:
		2476	stx_mask = STATX_OFFSET_mask
		2477	stx_blksize = STATX_OFFSET_blksize
		2478	stx_nlink = STATX_OFFSET_nlink
		2479	stx_uid = STATX_OFFSET_uid
		2480	stx_gid = STATX_OFFSET_gid
		2481	stx_rdev_major = STATX_OFFSET_rdev_major
		2482	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2483	stx_dev_major = STATX_OFFSET_dev_major
		2484	stx_dev_minor = STATX_OFFSET_dev_minor
		2485	CODE:
		2486	#if HAVE_STATX
		2487	RETVAL = *(__u32 *)((char *)&stx + ix);
		2488	#else
		2489	XSRETURN_UNDEF;
		2490	#endif
		2491	OUTPUT:
		2492	RETVAL
		2493
		2494	VAL64
		2495	stx_attributes ()
		2496	PROTOTYPE:
		2497	ALIAS:
		2498	stx_attributes = STATX_OFFSET_attributes
		2499	stx_ino = STATX_OFFSET_ino
		2500	stx_size = STATX_OFFSET_size
		2501	stx_blocks = STATX_OFFSET_blocks
		2502	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2503	CODE:
		2504	#if HAVE_STATX
		2505	RETVAL = *(__u64 *)((char *)&stx + ix);
		2506	#else
		2507	XSRETURN_UNDEF;
		2508	#endif
		2509	OUTPUT:
		2510	RETVAL
		2511
		2512	NV
		2513	stx_atime ()
		2514	PROTOTYPE:
		2515	ALIAS:
		2516	stx_atime = STATX_OFFSET_atime
		2517	stx_btime = STATX_OFFSET_btime
		2518	stx_ctime = STATX_OFFSET_ctime
		2519	stx_mtime = STATX_OFFSET_mtime
		2520	CODE:
		2521	#if HAVE_STATX
		2522	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2523	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2524	#else
		2525	XSRETURN_UNDEF;
		2526	#endif
		2527	OUTPUT:
		2528	RETVAL
		2529
		2530	VAL64
		2531	stx_atimesec ()
		2532	PROTOTYPE:
		2533	ALIAS:
		2534	stx_atimesec = STATX_OFFSET_atime
		2535	stx_btimesec = STATX_OFFSET_btime
		2536	stx_ctimesec = STATX_OFFSET_ctime
		2537	stx_mtimesec = STATX_OFFSET_mtime
		2538	CODE:
		2539	#if HAVE_STATX
		2540	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2541	RETVAL = ts->tv_sec;
		2542	#else
		2543	XSRETURN_UNDEF;
		2544	#endif
		2545	OUTPUT:
		2546	RETVAL
		2547
		2548	U32
		2549	stx_atimensec ()
		2550	PROTOTYPE:
		2551	ALIAS:
		2552	stx_atimensec = STATX_OFFSET_atime
		2553	stx_btimensec = STATX_OFFSET_btime
		2554	stx_ctimensec = STATX_OFFSET_ctime
		2555	stx_mtimensec = STATX_OFFSET_mtime
		2556	CODE:
		2557	#if HAVE_STATX
		2558	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2559	RETVAL = ts->tv_nsec;
		2560	#else
		2561	RETVAL = 0;
		2562	#endif
		2563	OUTPUT:
		2564	RETVAL
		2565
		2566	void
		2567	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2568	PPCODE:
		2569	{
		2570	SV *retval;
		2571	#if HAVE_ACCEPT4
		2572	socklen_t salen_ = salen ? salen + 1 : 0;
		2573
		2574	if (salen)
		2575	{
		2576	sv_upgrade (sockaddr, SVt_PV);
		2577	sv_grow (sockaddr, salen_);
		2578	}
		2579
		2580	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2581
		2582	retval = newmortalFH (res, O_RDWR);
		2583
		2584	if (res >= 0 && salen > 0)
		2585	{
		2586	if (salen_ > salen + 1)
		2587	salen_ = salen + 1;
		2588
		2589	SvPOK_only (sockaddr);
		2590	SvCUR_set (sockaddr, salen_);
		2591	}
		2592	#else
		2593	errno = ENOSYS;
		2594	retval = &PL_sv_undef;
		2595	#endif
		2596	XPUSHs (retval);
		2597	}
		2598
		2599	ssize_t
		2600	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2601	CODE:
		2602	{
		2603	#if HAVE_LINUX_SPLICE
		2604	loff_t off_in_, off_out_;
		2605	RETVAL = splice (
		2606	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2607	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2608	length, flags
		2609	);
		2610	#else
		2611	RETVAL = EIO_ENOSYS ();
		2612	#endif
		2613	}
		2614	OUTPUT:
		2615	RETVAL
		2616
		2617	ssize_t
		2618	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2619	CODE:
		2620	#if HAVE_LINUX_SPLICE
		2621	RETVAL = tee (rfh, wfh, length, flags);
		2622	#else
		2623	RETVAL = EIO_ENOSYS ();
		2624	#endif
		2625	OUTPUT:
		2626	RETVAL
		2627
		2628	int
		2629	pipesize (aio_rfd rfh, int new_size = -1)
		2630	PROTOTYPE: $;$
		2631	CODE:
		2632	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2633	if (new_size >= 0)
		2634	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2635	else
		2636	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2637	#else
		2638	errno = ENOSYS;
		2639	RETVAL = -1;
		2640	#endif
		2641	OUTPUT:
		2642	RETVAL
		2643
		2644	void
		2645	pipe2 (int flags = 0)
		2646	PROTOTYPE: ;$
		2647	PPCODE:
		2648	{
		2649	int fd[2];
		2650	int res;
		2651
		2652	if (flags)
		2653	#if HAVE_PIPE2
		2654	res = pipe2 (fd, flags);
		2655	#else
		2656	res = (errno = ENOSYS, -1);
		2657	#endif
		2658	else
		2659	res = pipe (fd);
		2660
		2661	if (!res)
		2662	{
		2663	EXTEND (SP, 2);
		2664	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2665	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2666	}
		2667	}
		2668
		2669	void
		2670	pidfd_open (int pid, unsigned int flags = 0)
		2671	PPCODE:
		2672	{
		2673	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2674	int fd = syscall (SYS_pidfd_open, pid, flags);
		2675	XPUSHs (newmortalFH (fd, O_RDWR));
		2676	}
		2677
		2678	int
		2679	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2680	PPCODE:
		2681	{
		2682	int res;
		2683	siginfo_t si = { 0 };
		2684
		2685	if (SvOK (siginfo))
		2686	{
		2687	HV *hv;
		2688	SV **svp;
		2689
		2690	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2691	croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
		2692
		2693	hv = (HV *)SvRV (siginfo);
		2694
		2695	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2696	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2697	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2698	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2699	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2700	}
		2701
		2702	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2703	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2704
		2705	XPUSHs (sv_2mortal (newSViv (res)));
		2706	}
		2707
		2708	void
		2709	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2710	PPCODE:
		2711	{
		2712	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2713	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2714	XPUSHs (newmortalFH (fd, O_RDWR));
		2715	}
		2716
		2717	void
		2718	eventfd (unsigned int initval = 0, int flags = 0)
		2719	PPCODE:
		2720	{
		2721	int fd;
		2722	#if HAVE_EVENTFD
		2723	fd = eventfd (initval, flags);
		2724	#else
		2725	fd = (errno = ENOSYS, -1);
		2726	#endif
		2727
		2728	XPUSHs (newmortalFH (fd, O_RDWR));
		2729	}
		2730
		2731	void
		2732	timerfd_create (int clockid, int flags = 0)
		2733	PPCODE:
		2734	{
		2735	int fd;
		2736	#if HAVE_TIMERFD
		2737	fd = timerfd_create (clockid, flags);
		2738	#else
		2739	fd = (errno = ENOSYS, -1);
		2740	#endif
		2741
		2742	XPUSHs (newmortalFH (fd, O_RDWR));
		2743	}
		2744
		2745	void
		2746	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2747	PPCODE:
		2748	{
		2749	int fd = s_fileno_croak (fh, 0);
		2750	#if HAVE_TIMERFD
		2751	int res;
		2752	struct itimerspec its, ots;
		2753
		2754	ts_set (&its.it_interval, interval);
		2755	ts_set (&its.it_value , value);
		2756	res = timerfd_settime (fd, flags, &its, &ots);
		2757
		2758	if (!res)
		2759	{
		2760	EXTEND (SP, 2);
		2761	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2762	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2763	}
		2764	#else
		2765	errno = ENOSYS;
		2766	#endif
		2767	}
		2768
		2769	void
		2770	timerfd_gettime (SV *fh)
		2771	PPCODE:
		2772	{
		2773	int fd = s_fileno_croak (fh, 0);
		2774	#if HAVE_TIMERFD
		2775	int res;
		2776	struct itimerspec ots;
		2777	res = timerfd_gettime (fd, &ots);
		2778
		2779	if (!res)
		2780	{
		2781	EXTEND (SP, 2);
		2782	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2783	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2784	}
		2785	#else
		2786	errno = ENOSYS;
		2787	#endif
		2788	}
		2789
		2790	void
		2791	memfd_create (SV8 *pathname, int flags = 0)
		2792	PPCODE:
		2793	{
		2794	int fd;
		2795	#if HAVE_MEMFD_CREATE
		2796	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2797	#else
		2798	fd = (errno = ENOSYS, -1);
		2799	#endif
		2800
		2801	XPUSHs (newmortalFH (fd, O_RDWR));
		2802	}
		2803
		2804	UV
		2805	get_fdlimit ()
		2806	CODE:
		2807	#if HAVE_RLIMITS
		2808	struct rlimit rl;
		2809	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2810	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2811	#endif
		2812	XSRETURN_UNDEF;
		2813	OUTPUT:
		2814	RETVAL
		2815
		2816	void
		2817	min_fdlimit (UV limit = 0x7fffffffU)
		2818	CODE:
		2819	{
		2820	#if HAVE_RLIMITS
		2821	struct rlimit rl;
		2822	rlim_t orig_rlim_max;
		2823	UV bit;
		2824
		2825	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2826	goto fail;
		2827
		2828	if (rl.rlim_cur == RLIM_INFINITY)
		2829	XSRETURN_YES;
		2830
		2831	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2832
		2833	if (rl.rlim_cur < limit)
		2834	{
		2835	rl.rlim_cur = limit;
		2836
		2837	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2838	rl.rlim_max = rl.rlim_cur;
		2839	}
		2840
		2841	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2842	XSRETURN_YES;
		2843
		2844	if (errno == EPERM)
		2845	{
		2846	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2847	/* our limit overflows a system-wide limit */
		2848	/* try an adaptive algorithm, but do not lower the hardlimit */
		2849	rl.rlim_max = 0;
		2850	for (bit = 0x40000000U; bit; bit >>= 1)
		2851	{
		2852	rl.rlim_max |= bit;
		2853	rl.rlim_cur = rl.rlim_max;
		2854
		2855	/* never decrease the hard limit */
		2856	if (rl.rlim_max < orig_rlim_max)
		2857	break;
		2858
		2859	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2860	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2861	}
		2862
		2863	/* now, raise the soft limit to the max permitted */
		2864	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2865	{
		2866	rl.rlim_cur = rl.rlim_max;
		2867	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2868	errno = EPERM;
		2869	}
		2870	}
		2871	#endif
		2872	fail:
		2873	XSRETURN_UNDEF;
		2874	}
		2875
1073	void _on_next_submit (SV *cb)	2876	void _on_next_submit (SV *cb)
1074	CODE:	2877	CODE:
1075	SvREFCNT_dec (on_next_submit);	2878	SvREFCNT_dec (on_next_submit);
1076	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2879	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1077		2880
1078	PROTOTYPES: DISABLE	2881	PROTOTYPES: DISABLE
1079		2882
		2883	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2884
		2885	BOOT:
		2886	{
		2887	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2888	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2889	}
		2890
		2891	void
		2892	DESTROY (SV *self)
		2893	CODE:
		2894	{
		2895	aio_wd wd = SvAIO_WD (self);
		2896	#if HAVE_AT
		2897	{
		2898	SV *callback = &PL_sv_undef;
		2899	dREQ; /* clobbers next_pri :/ */
		2900	next_pri = req->pri; /* restore next_pri */
		2901	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2902	req->type = EIO_WD_CLOSE;
		2903	req->wd = wd;
		2904	REQ_SEND;
		2905	}
		2906	#else
		2907	eio_wd_close_sync (wd);
		2908	#endif
		2909	}
		2910
1080	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2911	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1081		2912
1082	void	2913	void
1083	cancel (aio_req_ornot req)	2914	cancel (aio_req_ornot req)
1084	CODE:	2915	CODE:
1085	eio_cancel (req);	2916	eio_cancel (req);
1086		2917
1087	void	2918	void
1088	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2919	cb (aio_req_ornot req, SV *callback = NO_INIT)
1089	PPCODE:	2920	PPCODE:
1090	{	2921	{
1091	if (GIMME_V != G_VOID)	2922	if (GIMME_V != G_VOID)
1092	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2923	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1093		2924
…		…
1138	AV *av;	2969	AV *av;
1139		2970
1140	grp->errorno = errno;	2971	grp->errorno = errno;
1141		2972
1142	av = newAV ();	2973	av = newAV ();
		2974	av_extend (av, items - 1);
1143		2975
1144	for (i = 1; i < items; ++i )	2976	for (i = 1; i < items; ++i )
1145	av_push (av, newSVsv (ST (i)));	2977	av_push (av, newSVsv (ST (i)));
1146		2978
1147	SvREFCNT_dec (grp->sv1);	2979	SvREFCNT_dec (grp->sv1);
…		…
1157	limit (aio_req grp, int limit)	2989	limit (aio_req grp, int limit)
1158	CODE:	2990	CODE:
1159	eio_grp_limit (grp, limit);	2991	eio_grp_limit (grp, limit);
1160		2992
1161	void	2993	void
1162	feed (aio_req grp, SV *callback=&PL_sv_undef)	2994	feed (aio_req grp, SV *callback = &PL_sv_undef)
1163	CODE:	2995	CODE:
1164	{	2996	{
1165	SvREFCNT_dec (grp->sv2);	2997	SvREFCNT_dec (grp->sv2);
1166	grp->sv2 = newSVsv (callback);	2998	grp->sv2 = newSVsv (callback);
1167	grp->feed = aio_grp_feed;	2999	grp->feed = aio_grp_feed;

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