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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.138 by root, Tue Apr 21 20:06:05 2009 UTC vs.
Revision 1.295 by root, Mon Sep 5 00:03:32 2022 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8	#include "perliol.h"
		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);
		771	break;
		772
		773	case EIO_SEEK:
		774	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
314	break;	775	break;
315		776
316	case EIO_READ:	777	case EIO_READ:
317	{	778	{
318	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));
319	*SvEND (req->sv2) = 0;	780	*SvEND (req->sv2) = 0;
320	SvPOK_only (req->sv2);	781	SvPOK_only (req->sv2);
321	SvSETMAGIC (req->sv2);	782	SvSETMAGIC (req->sv2);
322	PUSHs (sv_2mortal (newSViv (req->result)));	783	PUSHs (sv_result);
323	}	784	}
324	break;	785	break;
325		786
326	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 */
327	if (req->result > 0)	858	if (req->result > 0)
328	req->result = 0;	859	SvIV_set (sv_result, 0);
329	/* FALLTHROUGH */	860	/* FALLTHROUGH */
330		861
331	default:	862	default:
332	PUSHs (sv_2mortal (newSViv (req->result)));	863	PUSHs (sv_result);
333	break;	864	break;
334	}	865	}
335		866
336	errno = req->errorno;	867	errno = req->errorno;
337		868
338	PUTBACK;	869	PUTBACK;
339	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	870	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
340	SPAGAIN;	871	SPAGAIN;
341		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
342	FREETMPS;	878	FREETMPS;
343	LEAVE;	879	LEAVE;
344		880
345	PUTBACK;	881	PUTBACK;
346	}	882	}
347		883
348	return !!SvTRUE (ERRSV);	884	return !!SvTRUE (ERRSV);
349	}	885	}
350		886
		887	static void
351	static void req_destroy (aio_req req)	888	req_destroy (aio_req req)
352	{	889	{
353	if (req->self)	890	if (req->self)
354	{	891	{
355	sv_unmagic (req->self, PERL_MAGIC_ext);	892	sv_unmagic (req->self, PERL_MAGIC_ext);
356	SvREFCNT_dec (req->self);	893	SvREFCNT_dec (req->self);
357	}	894	}
358		895
359	SvREFCNT_dec (req->sv1);	896	SvREFCNT_dec (req->sv1);
360	SvREFCNT_dec (req->sv2);	897	SvREFCNT_dec (req->sv2);
		898	SvREFCNT_dec (req->sv3);
		899	SvREFCNT_dec (req->sv4);
361	SvREFCNT_dec (req->callback);	900	SvREFCNT_dec (req->callback);
362		901
363	Safefree (req);	902	free (req);
364	}	903	}
365		904
		905	static void
366	static void req_cancel_subs (aio_req grp)	906	req_cancel_subs (aio_req grp)
367	{	907	{
368	aio_req sub;
369
370	if (grp->type != EIO_GROUP)	908	if (grp->type != EIO_GROUP)
371	return;	909	return;
372		910
373	SvREFCNT_dec (grp->sv2);	911	SvREFCNT_dec (grp->sv2);
374	grp->sv2 = 0;	912	grp->sv2 = 0;
375		913
376	eio_grp_cancel (grp);	914	eio_grp_cancel (grp);
377	}	915	}
378		916
379	#ifdef USE_SOCKETS_AS_HANDLES	917	ecb_cold
380	# define TO_SOCKET(x) (win32_get_osfhandle (x))
381	#else
382	# define TO_SOCKET(x) (x)
383	#endif
384
385	static void	918	static void
386	create_respipe (void)	919	create_respipe (void)
387	{	920	{
388	int old_readfd = respipe [0];
389
390	if (respipe [1] >= 0)
391	respipe_close (TO_SOCKET (respipe [1]));
392
393	#ifdef _WIN32
394	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
395	#else
396	if (pipe (respipe))	921	if (s_epipe_renew (&respipe))
397	#endif
398	croak ("unable to initialize result pipe");	922	croak ("IO::AIO: unable to initialize result pipe");
399
400	if (old_readfd >= 0)
401	{
402	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
403	croak ("unable to initialize result pipe(2)");
404
405	respipe_close (respipe [0]);
406	respipe [0] = old_readfd;
407	}
408
409	#ifdef _WIN32
410	int arg = 1;
411	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
412	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
413	#else
414	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
415	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
416	#endif
417	croak ("unable to initialize result pipe(3)");
418
419	respipe_osf [0] = TO_SOCKET (respipe [0]);
420	respipe_osf [1] = TO_SOCKET (respipe [1]);
421	}	923	}
422		924
423	static void poll_wait (void)	925	static void
		926	poll_wait (void)
424	{	927	{
425	fd_set rfd;
426
427	while (eio_nreqs ())	928	while (eio_nreqs ())
428	{	929	{
429	int size;	930	int size;
430		931
431	X_LOCK (reslock);	932	X_LOCK (EIO_POOL->reslock);
432	size = res_queue.size;	933	size = EIO_POOL->res_queue.size;
433	X_UNLOCK (reslock);	934	X_UNLOCK (EIO_POOL->reslock);
434		935
435	if (size)	936	if (size)
436	return;	937	return;
437		938
438	etp_maybe_start_thread ();	939	etp_maybe_start_thread (EIO_POOL);
439		940
440	FD_ZERO (&rfd);	941	s_epipe_wait (&respipe);
441	FD_SET (respipe [0], &rfd);
442
443	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
444	}	942	}
445	}	943	}
446		944
447	static int poll_cb (void)	945	static int
		946	poll_cb (void)
448	{	947	{
449	for (;;)	948	for (;;)
450	{	949	{
451	int res = eio_poll ();	950	int res = eio_poll ();
452		951
…		…
458		957
459	poll_wait ();	958	poll_wait ();
460	}	959	}
461	}	960	}
462		961
463	static void atfork_child (void)	962	ecb_cold
		963	static void
		964	reinit (void)
464	{	965	{
465	create_respipe ();	966	create_respipe ();
		967
		968	if (eio_init (want_poll, done_poll) < 0)
		969	croak ("IO::AIO: unable to initialise eio library");
466	}	970	}
		971
		972	/*****************************************************************************/
467		973
468	static SV *	974	static SV *
469	get_cb (SV *cb_sv)	975	get_cb (SV *cb_sv)
470	{	976	{
471	HV *st;	977	SvGETMAGIC (cb_sv);
472	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	{
473	CV *cv;	985	SV *cb_cv;
		986	aio_req req;
		987	int req_pri = next_pri;
		988	next_pri = EIO_PRI_DEFAULT;
474		989
475	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
476	return 0;	999	return req;
477
478	cv = sv_2cv (cb_sv, &st, &gvp, 0);
479
480	if (!cv)
481	croak ("IO::AIO callback must be undef or a CODE reference");
482
483	return (SV *)cv;
484	}	1000	}
485		1001
486	#define dREQ \	1002	#define dREQ \
487	SV *cb_cv; \	1003	aio_req req = dreq (callback); \
488	aio_req req; \
489	int req_pri = next_pri; \
490	next_pri = EIO_PRI_DEFAULT; \
491	\
492	cb_cv = get_cb (callback); \
493	\
494	Newz (0, req, 1, eio_req); \
495	if (!req) \
496	croak ("out of memory during eio_req allocation"); \
497	\
498	req->callback = SvREFCNT_inc (cb_cv); \
499	req->pri = req_pri
500		1004
501	#define REQ_SEND \	1005	#define REQ_SEND \
502	PUTBACK; \	1006	PUTBACK; \
503	req_submit (req); \	1007	req_submit (req); \
504	SPAGAIN; \	1008	SPAGAIN; \
505	\	1009	\
506	if (GIMME_V != G_VOID) \	1010	if (GIMME_V != G_VOID) \
507	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1011	XPUSHs (req_sv (req, aio_req_stash));
508		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
509	static int	1052	static void
510	extract_fd (SV *fh, int wr)	1053	req_set_path1 (aio_req req, SV *path)
511	{	1054	{
512	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	1055	req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		1056	}
513		1057
514	if (fd < 0)	1058	ecb_noinline
515	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");	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;
516		1063
		1064	switch (SvTYPE (rv))
		1065	{
		1066	case SVt_PVIO:
		1067	case SVt_PVLV:
		1068	case SVt_PVGV:
		1069	req->type = type_fh;
		1070	req->sv1 = newSVsv (fh_or_path);
		1071	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1072	break;
		1073
		1074	default:
		1075	req->type = type_path;
		1076	req_set_path1 (req, fh_or_path);
		1077	break;
		1078	}
		1079	}
		1080
		1081	/*****************************************************************************/
		1082
		1083	static void
		1084	ts_set (struct timespec *ts, NV value)
		1085	{
		1086	ts->tv_sec = value;
		1087	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1088	}
		1089
		1090	static NV
		1091	ts_get (const struct timespec *ts)
		1092	{
		1093	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1094	}
		1095
		1096	/*****************************************************************************/
		1097
		1098	/* extract a ref-to-array of strings into a temporary c style string vector */
		1099	static char **
		1100	extract_stringvec (SV *sv, const char *croakmsg)
		1101	{
		1102	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
		1103	croak (croakmsg);
		1104
		1105	AV *av = (AV *)SvRV (sv);
		1106	int i, nelem = av_len (av) + 1;
		1107	char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
		1108
		1109	for (i = 0; i < nelem; ++i)
		1110	{
		1111	SV **e = av_fetch (av, i, 0);
		1112
		1113	if (e && *e)
		1114	vecp[i] = SvPVbyte_nolen (*e);
		1115	else
		1116	vecp[i] = "";
		1117	}
		1118
		1119	vecp[nelem] = 0;
		1120
517	return fd;	1121	return vecp;
518	}	1122	}
		1123
		1124	/*****************************************************************************/
		1125
		1126	XS(boot_IO__AIO) ecb_cold;
519		1127
520	MODULE = IO::AIO PACKAGE = IO::AIO	1128	MODULE = IO::AIO PACKAGE = IO::AIO
521		1129
522	PROTOTYPES: ENABLE	1130	PROTOTYPES: ENABLE
523		1131
524	BOOT:	1132	BOOT:
525	{	1133	{
		1134	static const struct {
		1135	const char *name;
		1136	IV iv;
		1137	} *civ, const_iv[] = {
		1138	# define const_niv(name, value) { # name, (IV) value },
		1139	# define const_iv(name) { # name, (IV) name },
		1140	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1141
		1142	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1143	/* the first block can be undef if missing */
		1144	const_iv (ENOSYS)
		1145	const_iv (EXDEV)
		1146	const_iv (EBADR)
		1147
		1148	/* for lseek */
		1149	const_iv (SEEK_DATA)
		1150	const_iv (SEEK_HOLE)
		1151
		1152	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1153	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1154	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1155	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1156	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1157	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1158
		1159	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1160	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1161	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1162	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1163	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1164
		1165	/* the second block will be 0 when missing */
		1166	const_iv (O_ACCMODE)
		1167
		1168	const_iv (O_RDONLY)
		1169	const_iv (O_WRONLY)
		1170	const_iv (O_RDWR)
		1171	const_iv (O_CREAT)
		1172	const_iv (O_TRUNC)
		1173	const_iv (O_EXCL)
		1174	const_iv (O_APPEND)
		1175
		1176	const_iv (O_ASYNC)
		1177	const_iv (O_DIRECT)
		1178	const_iv (O_NOATIME)
		1179
		1180	const_iv (O_CLOEXEC)
		1181	const_iv (O_NOCTTY)
		1182	const_iv (O_NOFOLLOW)
		1183	const_iv (O_NONBLOCK)
		1184	const_iv (O_EXEC)
		1185	const_iv (O_SEARCH)
		1186	const_iv (O_DIRECTORY)
		1187	const_iv (O_DSYNC)
		1188	const_iv (O_RSYNC)
		1189	const_iv (O_SYNC)
		1190	const_iv (O_PATH)
		1191	const_iv (O_TMPFILE)
		1192	const_iv (O_TTY_INIT)
		1193
		1194	const_iv (S_IFIFO)
		1195	const_iv (S_IFCHR)
		1196	const_iv (S_IFBLK)
		1197	const_iv (S_IFLNK)
		1198	const_iv (S_IFREG)
		1199	const_iv (S_IFDIR)
		1200	const_iv (S_IFWHT)
		1201	const_iv (S_IFSOCK)
		1202	const_iv (S_IFMT)
		1203
		1204	const_iv (ST_RDONLY)
		1205	const_iv (ST_NOSUID)
		1206	const_iv (ST_NODEV)
		1207	const_iv (ST_NOEXEC)
		1208	const_iv (ST_SYNCHRONOUS)
		1209	const_iv (ST_MANDLOCK)
		1210	const_iv (ST_WRITE)
		1211	const_iv (ST_APPEND)
		1212	const_iv (ST_IMMUTABLE)
		1213	const_iv (ST_NOATIME)
		1214	const_iv (ST_NODIRATIME)
		1215	const_iv (ST_RELATIME)
		1216
		1217	const_iv (PROT_NONE)
		1218	const_iv (PROT_EXEC)
		1219	const_iv (PROT_READ)
		1220	const_iv (PROT_WRITE)
		1221
		1222	const_iv (MAP_PRIVATE)
		1223	const_iv (MAP_SHARED)
		1224	const_iv (MAP_FIXED)
		1225	const_iv (MAP_ANONYMOUS)
		1226
		1227	/* linuxish */
		1228	const_iv (MAP_LOCKED)
		1229	const_iv (MAP_NORESERVE)
		1230	const_iv (MAP_POPULATE)
		1231	const_iv (MAP_NONBLOCK)
		1232	const_iv (MAP_GROWSDOWN)
		1233	const_iv (MAP_32BIT)
		1234	const_iv (MAP_HUGETLB)
		1235	const_iv (MAP_STACK)
		1236	const_iv (MAP_FIXED_NOREPLACE)
		1237	const_iv (MAP_SHARED_VALIDATE)
		1238	const_iv (MAP_SYNC)
		1239	const_iv (MAP_UNINITIALIZED)
		1240
		1241	const_iv (MREMAP_MAYMOVE)
		1242	const_iv (MREMAP_FIXED)
		1243
		1244	const_iv (MSG_CMSG_CLOEXEC)
		1245	const_iv (SOCK_CLOEXEC)
		1246
		1247	const_iv (F_DUPFD_CLOEXEC)
		1248
		1249	const_iv (F_ADD_SEALS)
		1250	const_iv (F_GET_SEALS)
		1251	const_iv (F_SEAL_SEAL)
		1252	const_iv (F_SEAL_SHRINK)
		1253	const_iv (F_SEAL_GROW)
		1254	const_iv (F_SEAL_WRITE)
		1255
		1256	const_iv (F_OFD_GETLK)
		1257	const_iv (F_OFD_SETLK)
		1258	const_iv (F_OFD_GETLKW)
		1259
		1260	const_iv (FIFREEZE)
		1261	const_iv (FITHAW)
		1262	const_iv (FITRIM)
		1263	const_iv (FICLONE)
		1264	const_iv (FICLONERANGE)
		1265	const_iv (FIDEDUPERANGE)
		1266
		1267	const_iv (FS_IOC_GETFLAGS)
		1268	const_iv (FS_IOC_SETFLAGS)
		1269	const_iv (FS_IOC_GETVERSION)
		1270	const_iv (FS_IOC_SETVERSION)
		1271	const_iv (FS_IOC_FIEMAP)
		1272	const_iv (FS_IOC_FSGETXATTR)
		1273	const_iv (FS_IOC_FSSETXATTR)
		1274	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1275	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1276	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1277
		1278	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1279
		1280	const_iv (FS_SECRM_FL)
		1281	const_iv (FS_UNRM_FL)
		1282	const_iv (FS_COMPR_FL)
		1283	const_iv (FS_SYNC_FL)
		1284	const_iv (FS_IMMUTABLE_FL)
		1285	const_iv (FS_APPEND_FL)
		1286	const_iv (FS_NODUMP_FL)
		1287	const_iv (FS_NOATIME_FL)
		1288	const_iv (FS_DIRTY_FL)
		1289	const_iv (FS_COMPRBLK_FL)
		1290	const_iv (FS_NOCOMP_FL)
		1291	const_iv (FS_ENCRYPT_FL)
		1292	const_iv (FS_BTREE_FL)
		1293	const_iv (FS_INDEX_FL)
		1294	const_iv (FS_JOURNAL_DATA_FL)
		1295	const_iv (FS_NOTAIL_FL)
		1296	const_iv (FS_DIRSYNC_FL)
		1297	const_iv (FS_TOPDIR_FL)
		1298	const_iv (FS_FL_USER_MODIFIABLE)
		1299
		1300	const_iv (FS_XFLAG_REALTIME)
		1301	const_iv (FS_XFLAG_PREALLOC)
		1302	const_iv (FS_XFLAG_IMMUTABLE)
		1303	const_iv (FS_XFLAG_APPEND)
		1304	const_iv (FS_XFLAG_SYNC)
		1305	const_iv (FS_XFLAG_NOATIME)
		1306	const_iv (FS_XFLAG_NODUMP)
		1307	const_iv (FS_XFLAG_RTINHERIT)
		1308	const_iv (FS_XFLAG_PROJINHERIT)
		1309	const_iv (FS_XFLAG_NOSYMLINKS)
		1310	const_iv (FS_XFLAG_EXTSIZE)
		1311	const_iv (FS_XFLAG_EXTSZINHERIT)
		1312	const_iv (FS_XFLAG_NODEFRAG)
		1313	const_iv (FS_XFLAG_FILESTREAM)
		1314	const_iv (FS_XFLAG_DAX)
		1315	const_iv (FS_XFLAG_HASATTR)
		1316
		1317	const_iv (FIEMAP_FLAG_SYNC)
		1318	const_iv (FIEMAP_FLAG_XATTR)
		1319	const_iv (FIEMAP_FLAGS_COMPAT)
		1320	const_iv (FIEMAP_EXTENT_LAST)
		1321	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1322	const_iv (FIEMAP_EXTENT_DELALLOC)
		1323	const_iv (FIEMAP_EXTENT_ENCODED)
		1324	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1325	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1326	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1327	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1328	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1329	const_iv (FIEMAP_EXTENT_MERGED)
		1330	const_iv (FIEMAP_EXTENT_SHARED)
		1331
		1332	const_iv (SPLICE_F_MOVE)
		1333	const_iv (SPLICE_F_NONBLOCK)
		1334	const_iv (SPLICE_F_MORE)
		1335	const_iv (SPLICE_F_GIFT)
		1336
		1337	const_iv (EFD_CLOEXEC)
		1338	const_iv (EFD_NONBLOCK)
		1339	const_iv (EFD_SEMAPHORE)
		1340
		1341	const_iv (MFD_CLOEXEC)
		1342	const_iv (MFD_ALLOW_SEALING)
		1343	const_iv (MFD_HUGETLB)
		1344	const_iv (MFD_HUGETLB_2MB)
		1345	const_iv (MFD_HUGETLB_1GB)
		1346
		1347	const_iv (CLOCK_REALTIME)
		1348	const_iv (CLOCK_MONOTONIC)
		1349	const_iv (CLOCK_BOOTTIME)
		1350	const_iv (CLOCK_REALTIME_ALARM)
		1351	const_iv (CLOCK_BOOTTIME_ALARM)
		1352
		1353	const_iv (TFD_NONBLOCK)
		1354	const_iv (TFD_CLOEXEC)
		1355
		1356	const_iv (TFD_TIMER_ABSTIME)
		1357	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1358
		1359	const_iv (STATX_TYPE)
		1360	const_iv (STATX_MODE)
		1361	const_iv (STATX_NLINK)
		1362	const_iv (STATX_UID)
		1363	const_iv (STATX_GID)
		1364	const_iv (STATX_ATIME)
		1365	const_iv (STATX_MTIME)
		1366	const_iv (STATX_CTIME)
		1367	const_iv (STATX_INO)
		1368	const_iv (STATX_SIZE)
		1369	const_iv (STATX_BLOCKS)
		1370	const_iv (STATX_BASIC_STATS)
		1371	const_iv (STATX_ALL)
		1372	const_iv (STATX_BTIME)
		1373	const_iv (STATX_ATTR_COMPRESSED)
		1374	const_iv (STATX_ATTR_IMMUTABLE)
		1375	const_iv (STATX_ATTR_APPEND)
		1376	const_iv (STATX_ATTR_NODUMP)
		1377	const_iv (STATX_ATTR_ENCRYPTED)
		1378	const_iv (STATX_ATTR_AUTOMOUNT)
		1379
		1380	const_iv (AT_FDCWD)
		1381	const_iv (AT_SYMLINK_NOFOLLOW)
		1382	const_iv (AT_EACCESS)
		1383	const_iv (AT_REMOVEDIR)
		1384	const_iv (AT_SYMLINK_FOLLOW)
		1385	const_iv (AT_NO_AUTOMOUNT)
		1386	const_iv (AT_EMPTY_PATH)
		1387	const_iv (AT_STATX_SYNC_TYPE)
		1388	const_iv (AT_STATX_AS_STAT)
		1389	const_iv (AT_STATX_FORCE_SYNC)
		1390	const_iv (AT_STATX_DONT_SYNC)
		1391	const_iv (AT_RECURSIVE)
		1392
		1393	const_iv (OPEN_TREE_CLONE)
		1394
		1395	const_iv (FSOPEN_CLOEXEC)
		1396
		1397	const_iv (FSPICK_CLOEXEC)
		1398	const_iv (FSPICK_SYMLINK_NOFOLLOW)
		1399	const_iv (FSPICK_NO_AUTOMOUNT)
		1400	const_iv (FSPICK_EMPTY_PATH)
		1401
		1402	const_iv (MOVE_MOUNT_F_SYMLINKS)
		1403	const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
		1404	const_iv (MOVE_MOUNT_F_EMPTY_PATH)
		1405	const_iv (MOVE_MOUNT_T_SYMLINKS)
		1406	const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
		1407	const_iv (MOVE_MOUNT_T_EMPTY_PATH)
		1408
		1409	/* waitid */
		1410	const_iv (P_PID)
		1411	const_iv (P_PIDFD)
		1412	const_iv (P_PGID)
		1413	const_iv (P_ALL)
		1414
		1415	const_iv (FSCONFIG_SET_FLAG)
		1416	const_iv (FSCONFIG_SET_STRING)
		1417	const_iv (FSCONFIG_SET_BINARY)
		1418	const_iv (FSCONFIG_SET_PATH)
		1419	const_iv (FSCONFIG_SET_PATH_EMPTY)
		1420	const_iv (FSCONFIG_SET_FD)
		1421	const_iv (FSCONFIG_CMD_CREATE)
		1422	const_iv (FSCONFIG_CMD_RECONFIGURE)
		1423
		1424	const_iv (MOUNT_ATTR_RDONLY)
		1425	const_iv (MOUNT_ATTR_NOSUID)
		1426	const_iv (MOUNT_ATTR_NODEV)
		1427	const_iv (MOUNT_ATTR_NOEXEC)
		1428	const_iv (MOUNT_ATTR__ATIME)
		1429	const_iv (MOUNT_ATTR_RELATIME)
		1430	const_iv (MOUNT_ATTR_NOATIME)
		1431	const_iv (MOUNT_ATTR_STRICTATIME)
		1432	const_iv (MOUNT_ATTR_NODIRATIME)
		1433
		1434	/* these are libeio constants, and are independent of gendef0 */
		1435	const_eio (SEEK_SET)
		1436	const_eio (SEEK_CUR)
		1437	const_eio (SEEK_END)
		1438
		1439	const_eio (MCL_FUTURE)
		1440	const_eio (MCL_CURRENT)
		1441	const_eio (MCL_ONFAULT)
		1442
		1443	const_eio (MS_ASYNC)
		1444	const_eio (MS_INVALIDATE)
		1445	const_eio (MS_SYNC)
		1446
		1447	const_eio (MT_MODIFY)
		1448
		1449	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1450	const_eio (SYNC_FILE_RANGE_WRITE)
		1451	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1452
		1453	const_eio (FALLOC_FL_KEEP_SIZE)
		1454	const_eio (FALLOC_FL_PUNCH_HOLE)
		1455	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1456	const_eio (FALLOC_FL_ZERO_RANGE)
		1457	const_eio (FALLOC_FL_INSERT_RANGE)
		1458	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1459
		1460	const_eio (RENAME_NOREPLACE)
		1461	const_eio (RENAME_EXCHANGE)
		1462	const_eio (RENAME_WHITEOUT)
		1463
		1464	const_eio (READDIR_DENTS)
		1465	const_eio (READDIR_DIRS_FIRST)
		1466	const_eio (READDIR_STAT_ORDER)
		1467	const_eio (READDIR_FOUND_UNKNOWN)
		1468
		1469	const_eio (DT_UNKNOWN)
		1470	const_eio (DT_FIFO)
		1471	const_eio (DT_CHR)
		1472	const_eio (DT_DIR)
		1473	const_eio (DT_BLK)
		1474	const_eio (DT_REG)
		1475	const_eio (DT_LNK)
		1476	const_eio (DT_SOCK)
		1477	const_eio (DT_WHT)
		1478	};
		1479
526	stash = gv_stashpv ("IO::AIO", 1);	1480	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1481	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1482	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1483	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
527		1484
528	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1485	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
529	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1486	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
530	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1487
531	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1488	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
532	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1489
		1490	/* allocate dummy pipe fd for aio_close */
		1491	{
		1492	int pipefd [2];
		1493
		1494	if (
533	#ifndef _WIN32	1495	#ifdef _WIN32
534	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1496	_pipe (pipefd, 1, _O_BINARY) < 0
		1497	#else
		1498	pipe (pipefd) < 0
		1499	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
535	#endif	1500	#endif
536	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1501	|| close (pipefd [1]) < 0
537	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));	1502	)
538	newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));	1503	croak ("IO::AIO: unable to create dummy pipe for aio_close");
539	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
540		1504
541	create_respipe ();	1505	close_fd = pipefd [0];
		1506	}
542		1507
543	if (eio_init (want_poll, done_poll) < 0)	1508	reinit ();
544	croak ("IO::AIO: unable to initialise eio library");
545
546	/* atfork child called in fifo order, so before eio's handler */
547	X_THREAD_ATFORK (0, 0, atfork_child);
548	}	1509	}
549		1510
550	void	1511	void
		1512	reinit ()
		1513	PROTOTYPE:
		1514
		1515	void
551	max_poll_reqs (int nreqs)	1516	max_poll_reqs (unsigned int nreqs)
552	PROTOTYPE: $	1517	PROTOTYPE: $
553	CODE:	1518	CODE:
554	eio_set_max_poll_reqs (nreqs);	1519	eio_set_max_poll_reqs (nreqs);
555		1520
556	void	1521	void
…		…
558	PROTOTYPE: $	1523	PROTOTYPE: $
559	CODE:	1524	CODE:
560	eio_set_max_poll_time (nseconds);	1525	eio_set_max_poll_time (nseconds);
561		1526
562	void	1527	void
563	min_parallel (int nthreads)	1528	min_parallel (unsigned int nthreads)
564	PROTOTYPE: $	1529	PROTOTYPE: $
565	CODE:	1530	CODE:
566	eio_set_min_parallel (nthreads);	1531	eio_set_min_parallel (nthreads);
567		1532
568	void	1533	void
569	max_parallel (int nthreads)	1534	max_parallel (unsigned int nthreads)
570	PROTOTYPE: $	1535	PROTOTYPE: $
571	CODE:	1536	CODE:
572	eio_set_max_parallel (nthreads);	1537	eio_set_max_parallel (nthreads);
573		1538
574	void	1539	void
575	max_idle (int nthreads)	1540	max_idle (unsigned int nthreads)
576	PROTOTYPE: $	1541	PROTOTYPE: $
577	CODE:	1542	CODE:
578	eio_set_max_idle (nthreads);	1543	eio_set_max_idle (nthreads);
579		1544
580	void	1545	void
		1546	idle_timeout (unsigned int seconds)
		1547	PROTOTYPE: $
		1548	CODE:
		1549	eio_set_idle_timeout (seconds);
		1550
		1551	void
581	max_outstanding (int maxreqs)	1552	max_outstanding (unsigned int maxreqs)
582	PROTOTYPE: $	1553	PROTOTYPE: $
583	CODE:	1554	CODE:
584	max_outstanding = maxreqs;	1555	max_outstanding = maxreqs;
585		1556
586	void	1557	void
587	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1558	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
588	PROTOTYPE: $$$;$
589	PPCODE:	1559	PPCODE:
590	{	1560	{
591	dREQ;	1561	dREQ;
592		1562
		1563	req->type = EIO_WD_OPEN;
		1564	req_set_path1 (req, pathname);
		1565
		1566	REQ_SEND;
		1567	}
		1568
		1569	void
		1570	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1571	PPCODE:
		1572	{
		1573	dREQ;
		1574
593	req->type = EIO_OPEN;	1575	req->type = EIO_OPEN;
594	req->sv1 = newSVsv (pathname);	1576	req_set_path1 (req, pathname);
595	req->ptr1 = SvPVbyte_nolen (req->sv1);
596	req->int1 = flags;	1577	req->int1 = flags;
597	req->int2 = mode;	1578	req->int2 = mode;
598		1579
599	REQ_SEND;	1580	REQ_SEND;
600	}	1581	}
601		1582
602	void	1583	void
603	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1584	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
604	PROTOTYPE: $;$
605	ALIAS:	1585	ALIAS:
606	aio_fsync = EIO_FSYNC	1586	aio_fsync = EIO_FSYNC
607	aio_fdatasync = EIO_FDATASYNC	1587	aio_fdatasync = EIO_FDATASYNC
		1588	aio_syncfs = EIO_SYNCFS
608	PPCODE:	1589	PPCODE:
609	{	1590	{
610	int fd = extract_fd (fh, 0);	1591	int fd = s_fileno_croak (fh, 0);
611	dREQ;	1592	dREQ;
612		1593
613	req->type = ix;	1594	req->type = ix;
614	req->sv1 = newSVsv (fh);	1595	req->sv1 = newSVsv (fh);
615	req->int1 = fd;	1596	req->int1 = fd;
616		1597
617	REQ_SEND (req);	1598	REQ_SEND;
618	}	1599	}
619		1600
620	void	1601	void
621	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1602	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
622	PROTOTYPE: $$$$;$
623	PPCODE:	1603	PPCODE:
624	{	1604	{
625	int fd = extract_fd (fh, 0);	1605	int fd = s_fileno_croak (fh, 0);
626	dREQ;	1606	dREQ;
627		1607
628	req->type = EIO_SYNC_FILE_RANGE;	1608	req->type = EIO_SYNC_FILE_RANGE;
629	req->sv1 = newSVsv (fh);	1609	req->sv1 = newSVsv (fh);
630	req->int1 = fd;	1610	req->int1 = fd;
		1611	req->offs = offset;
		1612	req->size = nbytes;
		1613	req->int2 = flags;
		1614
		1615	REQ_SEND;
		1616	}
		1617
		1618	void
		1619	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1620	PPCODE:
		1621	{
		1622	int fd = s_fileno_croak (fh, 0);
		1623	dREQ;
		1624
		1625	req->type = EIO_FALLOCATE;
		1626	req->sv1 = newSVsv (fh);
		1627	req->int1 = fd;
		1628	req->int2 = mode;
		1629	req->offs = offset;
		1630	req->size = len;
		1631
		1632	REQ_SEND;
		1633	}
		1634
		1635	void
		1636	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1637	PPCODE:
		1638	{
		1639	int fd = s_fileno_croak (fh, 0);
		1640	dREQ;
		1641	#if 0
		1642	/* partially duplicate logic in s_fileno */
		1643	SvGETMAGIC (fh);
		1644
		1645	if (SvROK (fh))
		1646	{
		1647	fh = SvRV (fh);
		1648	SvGETMAGIC (fh);
		1649	}
		1650
		1651	if (SvTYPE (fh) == SVt_PVGV)
		1652	{
		1653	/* perl filehandle */
		1654	PerlIOUnix_refcnt_inc (fd);
		1655	do_close ((GV *)fh, 1);
		1656
		1657	req->type = EIO_CLOSE;
		1658	req->int1 = fd;
		1659	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
		1660	}
		1661	else
		1662	#endif
		1663	{
		1664	/* fd number */
		1665	req->type = EIO_DUP2;
		1666	req->int1 = close_fd;
		1667	req->sv2 = newSVsv (fh);
		1668	req->int2 = fd;
		1669	}
		1670
		1671	REQ_SEND;
		1672	}
		1673
		1674	void
		1675	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1676	PPCODE:
		1677	{
		1678	int fd = s_fileno_croak (fh, 0);
		1679	dREQ;
		1680
		1681	req->type = EIO_SEEK;
		1682	req->sv1 = newSVsv (fh);
		1683	req->int1 = fd;
631	req->offs = SvVAL64 (offset);	1684	req->offs = SvVAL64 (offset);
632	req->size = SvVAL64 (nbytes);
633	req->int2 = flags;	1685	req->int2 = whence;
634		1686
635	REQ_SEND (req);	1687	REQ_SEND;
636	}	1688	}
637		1689
638	void	1690	void
639	aio_close (SV *fh, SV *callback=&PL_sv_undef)
640	PROTOTYPE: $;$
641	PPCODE:
642	{
643	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
644	int fd = extract_fd (fh, 0);
645	dREQ;
646
647	if (close_pipe < 0)
648	{
649	int pipefd [2];
650
651	if (pipe (pipefd) < 0
652	|| close (pipefd [1]) < 0
653	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
654	abort (); /*D*/
655
656	close_pipe = pipefd [0];
657	}
658
659	req->type = EIO_DUP2;
660	req->int1 = close_pipe;
661	req->sv2 = newSVsv (fh);
662	req->int2 = fd;
663
664	REQ_SEND (req);
665	}
666
667	void
668	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1691	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
669	ALIAS:	1692	ALIAS:
670	aio_read = EIO_READ	1693	aio_read = EIO_READ
671	aio_write = EIO_WRITE	1694	aio_write = EIO_WRITE
672	PROTOTYPE: $$$$$;$
673	PPCODE:	1695	PPCODE:
674	{	1696	{
675	STRLEN svlen;	1697	STRLEN svlen;
676	int fd = extract_fd (fh, ix == EIO_WRITE);	1698	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
677	char *svptr = SvPVbyte (data, svlen);	1699	char *svptr = SvPVbyte (data, svlen);
678	UV len = SvUV (length);	1700	UV len = SvUV (length);
679		1701
680	if (dataoffset < 0)	1702	if (dataoffset < 0)
681	dataoffset += svlen;	1703	dataoffset += svlen;
…		…
690	len = svlen - dataoffset;	1712	len = svlen - dataoffset;
691	}	1713	}
692	else	1714	else
693	{	1715	{
694	/* read: check type and grow scalar as necessary */	1716	/* read: check type and grow scalar as necessary */
695	SvUPGRADE (data, SVt_PV);	1717	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
696	svptr = SvGROW (data, len + dataoffset + 1);	1718	svptr = sv_grow (data, len + dataoffset + 1);
		1719	else if (SvCUR (data) < len + dataoffset)
		1720	croak ("length + dataoffset outside of scalar, and cannot grow");
697	}	1721	}
698
699	if (len < 0)
700	croak ("length must not be negative");
701		1722
702	{	1723	{
703	dREQ;	1724	dREQ;
704		1725
705	req->type = ix;	1726	req->type = ix;
…		…
720	REQ_SEND;	1741	REQ_SEND;
721	}	1742	}
722	}	1743	}
723		1744
724	void	1745	void
725	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1746	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
726	PROTOTYPE: $$;$	1747	ALIAS:
		1748	aio_ioctl = EIO_IOCTL
		1749	aio_fcntl = EIO_FCNTL
727	PPCODE:	1750	PPCODE:
728	{	1751	{
729	SV *data;	1752	int fd = s_fileno_croak (fh, 0);
		1753	char *svptr;
		1754
		1755	if (SvPOK (arg) || !SvNIOK (arg))
		1756	{
		1757	STRLEN svlen;
		1758	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1759	#ifdef IOCPARM_LEN
		1760	STRLEN need = IOCPARM_LEN (request);
		1761	#else
		1762	STRLEN need = 256;
		1763	#endif
		1764
		1765	if (svlen < need)
		1766	svptr = SvGROW (arg, need);
		1767	}
		1768	else
		1769	svptr = (char *)SvIV (arg);
		1770
		1771	{
		1772	dREQ;
		1773
		1774	req->type = ix;
		1775	req->sv1 = newSVsv (fh);
		1776	req->int1 = fd;
		1777	req->int2 = (long)request;
		1778	req->sv2 = SvREFCNT_inc (arg);
		1779	req->ptr2 = svptr;
		1780
		1781	REQ_SEND;
		1782	}
		1783	}
		1784
		1785	void
		1786	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1787	ALIAS:
		1788	aio_readlink = EIO_READLINK
		1789	aio_realpath = EIO_REALPATH
		1790	PPCODE:
		1791	{
730	dREQ;	1792	dREQ;
731		1793
732	req->type = EIO_READLINK;	1794	req->type = ix;
733	req->sv1 = newSVsv (path);	1795	req_set_path1 (req, pathname);
734	req->ptr1 = SvPVbyte_nolen (req->sv1);
735		1796
736	REQ_SEND;	1797	REQ_SEND;
737	}	1798	}
738		1799
739	void	1800	void
740	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1801	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
741	PROTOTYPE: $$$$;$
742	PPCODE:	1802	PPCODE:
743	{	1803	{
744	int ifd = extract_fd (in_fh , 0);	1804	int ifd = s_fileno_croak (in_fh , 0);
745	int ofd = extract_fd (out_fh, 0);	1805	int ofd = s_fileno_croak (out_fh, 1);
746	dREQ;	1806	dREQ;
747		1807
748	req->type = EIO_SENDFILE;	1808	req->type = EIO_SENDFILE;
749	req->sv1 = newSVsv (out_fh);	1809	req->sv1 = newSVsv (out_fh);
750	req->int1 = ofd;	1810	req->int1 = ofd;
751	req->sv2 = newSVsv (in_fh);	1811	req->sv2 = newSVsv (in_fh);
752	req->int2 = ifd;	1812	req->int2 = ifd;
753	req->offs = SvVAL64 (in_offset);	1813	req->offs = in_offset;
754	req->size = length;	1814	req->size = length;
755		1815
756	REQ_SEND;	1816	REQ_SEND;
757	}	1817	}
758		1818
759	void	1819	void
760	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1820	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
761	PROTOTYPE: $$$;$
762	PPCODE:	1821	PPCODE:
763	{	1822	{
764	int fd = extract_fd (fh, 0);	1823	int fd = s_fileno_croak (fh, 0);
765	dREQ;	1824	dREQ;
766		1825
767	req->type = EIO_READAHEAD;	1826	req->type = EIO_READAHEAD;
768	req->sv1 = newSVsv (fh);	1827	req->sv1 = newSVsv (fh);
769	req->int1 = fd;	1828	req->int1 = fd;
770	req->offs = SvVAL64 (offset);	1829	req->offs = offset;
771	req->size = length;	1830	req->size = length;
772		1831
773	REQ_SEND;	1832	REQ_SEND;
774	}	1833	}
775		1834
776	void	1835	void
777	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1836	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
778	ALIAS:	1837	ALIAS:
779	aio_stat = EIO_STAT	1838	aio_stat = EIO_STAT
780	aio_lstat = EIO_LSTAT	1839	aio_lstat = EIO_LSTAT
		1840	aio_statvfs = EIO_STATVFS
781	PPCODE:	1841	PPCODE:
782	{	1842	{
783	dREQ;	1843	dREQ;
784		1844
785	req->sv1 = newSVsv (fh_or_path);	1845	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
786
787	if (SvPOK (req->sv1))
788	{
789	req->type = ix;
790	req->ptr1 = SvPVbyte_nolen (req->sv1);
791	}
792	else
793	{
794	req->type = EIO_FSTAT;
795	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
796	}
797		1846
798	REQ_SEND;	1847	REQ_SEND;
799	}	1848	}
800		1849
801	void	1850	void
		1851	st_xtime ()
		1852	ALIAS:
		1853	st_atime = 0x01
		1854	st_mtime = 0x02
		1855	st_ctime = 0x04
		1856	st_btime = 0x08
		1857	st_xtime = 0x0f
		1858	PPCODE:
		1859	EXTEND (SP, 4);
		1860	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1861	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1862	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1863	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1864
		1865	void
		1866	st_xtimensec ()
		1867	ALIAS:
		1868	st_atimensec = 0x01
		1869	st_mtimensec = 0x02
		1870	st_ctimensec = 0x04
		1871	st_btimensec = 0x08
		1872	st_xtimensec = 0x0f
		1873	st_btimesec = 0x10
		1874	st_gen = 0x20
		1875	PPCODE:
		1876	EXTEND (SP, 4);
		1877	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1878	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1879	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1880	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1881	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1882	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1883
		1884	UV
		1885	major (UV dev)
		1886	ALIAS:
		1887	minor = 1
		1888	CODE:
		1889	RETVAL = ix ? minor (dev) : major (dev);
		1890	OUTPUT:
		1891	RETVAL
		1892
		1893	UV
		1894	makedev (UV maj, UV min)
		1895	CODE:
		1896	RETVAL = makedev (maj, min);
		1897	OUTPUT:
		1898	RETVAL
		1899
		1900	void
802	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1901	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
803	PPCODE:	1902	PPCODE:
804	{	1903	{
805	dREQ;	1904	dREQ;
806		1905
807	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1906	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
808	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1907	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
809	req->sv1 = newSVsv (fh_or_path);	1908	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
810
811	if (SvPOK (req->sv1))
812	{
813	req->type = EIO_UTIME;
814	req->ptr1 = SvPVbyte_nolen (req->sv1);
815	}
816	else
817	{
818	req->type = EIO_FUTIME;
819	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
820	}
821		1909
822	REQ_SEND;	1910	REQ_SEND;
823	}	1911	}
824		1912
825	void	1913	void
826	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1914	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
827	PPCODE:	1915	PPCODE:
828	{	1916	{
829	dREQ;	1917	dREQ;
830		1918
831	req->sv1 = newSVsv (fh_or_path);
832	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1919	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
833		1920	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
834	if (SvPOK (req->sv1))
835	{
836	req->type = EIO_TRUNCATE;
837	req->ptr1 = SvPVbyte_nolen (req->sv1);
838	}
839	else
840	{
841	req->type = EIO_FTRUNCATE;
842	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
843	}
844		1921
845	REQ_SEND;	1922	REQ_SEND;
846	}	1923	}
847		1924
848	void	1925	void
849	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1926	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
850	ALIAS:
851	aio_chmod = EIO_CHMOD
852	aio_mkdir = EIO_MKDIR
853	PPCODE:	1927	PPCODE:
854	{	1928	{
855	dREQ;	1929	dREQ;
856		1930
857	req->int2 = mode;	1931	req->int2 = mode;
858	req->sv1 = newSVsv (fh_or_path);	1932	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
859
860	if (SvPOK (req->sv1))
861	{
862	req->type = ix;
863	req->ptr1 = SvPVbyte_nolen (req->sv1);
864	}
865	else
866	{
867	req->type = EIO_FCHMOD;
868	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
869	}
870		1933
871	REQ_SEND;	1934	REQ_SEND;
872	}	1935	}
873		1936
874	void	1937	void
875	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1938	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
876	PPCODE:	1939	PPCODE:
877	{	1940	{
878	dREQ;	1941	dREQ;
879		1942
880	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1943	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
881	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1944	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
882	req->sv1 = newSVsv (fh_or_path);	1945	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
883
884	if (SvPOK (req->sv1))
885	{
886	req->type = EIO_CHOWN;
887	req->ptr1 = SvPVbyte_nolen (req->sv1);
888	}
889	else
890	{
891	req->type = EIO_FCHOWN;
892	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
893	}
894		1946
895	REQ_SEND;	1947	REQ_SEND;
896	}	1948	}
897		1949
898	void	1950	void
		1951	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1952	PPCODE:
		1953	{
		1954	dREQ;
		1955
		1956	req->type = EIO_READDIR;
		1957	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1958
		1959	if (flags & EIO_READDIR_DENTS)
		1960	req->int1 |= EIO_READDIR_CUSTOM2;
		1961
		1962	req_set_path1 (req, pathname);
		1963
		1964	REQ_SEND;
		1965	}
		1966
		1967	void
		1968	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1969	PPCODE:
		1970	{
		1971	dREQ;
		1972
		1973	req->type = EIO_MKDIR;
		1974	req->int2 = mode;
		1975	req_set_path1 (req, pathname);
		1976
		1977	REQ_SEND;
		1978	}
		1979
		1980	void
899	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1981	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
900	ALIAS:	1982	ALIAS:
901	aio_unlink = EIO_UNLINK	1983	aio_unlink = EIO_UNLINK
902	aio_rmdir = EIO_RMDIR	1984	aio_rmdir = EIO_RMDIR
903	aio_readdir = EIO_READDIR	1985	aio_readdir = EIO_READDIR
904	PPCODE:	1986	PPCODE:
905	{	1987	{
906	dREQ;	1988	dREQ;
907		1989
908	req->type = ix;	1990	req->type = ix;
909	req->sv1 = newSVsv (pathname);	1991	req_set_path1 (req, pathname);
910	req->ptr1 = SvPVbyte_nolen (req->sv1);
911		1992
912	REQ_SEND;	1993	REQ_SEND;
913	}	1994	}
914		1995
915	void	1996	void
916	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1997	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
917	ALIAS:	1998	ALIAS:
918	aio_link = EIO_LINK	1999	aio_link = EIO_LINK
919	aio_symlink = EIO_SYMLINK	2000	aio_symlink = EIO_SYMLINK
920	aio_rename = EIO_RENAME	2001	aio_rename = EIO_RENAME
921	PPCODE:	2002	PPCODE:
922	{	2003	{
		2004	eio_wd wd2 = 0;
923	dREQ;	2005	dREQ;
924		2006
925	req->type = ix;	2007	req->type = ix;
926	req->sv1 = newSVsv (oldpath);	2008	req_set_path1 (req, oldpath);
927	req->ptr1 = SvPVbyte_nolen (req->sv1);	2009	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
928	req->sv2 = newSVsv (newpath);	2010	req->int3 = (long)wd2;
929	req->ptr2 = SvPVbyte_nolen (req->sv2);
930		2011
931	REQ_SEND;	2012	REQ_SEND;
932	}	2013	}
933		2014
934	void	2015	void
		2016	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		2017	PPCODE:
		2018	{
		2019	eio_wd wd2 = 0;
		2020	dREQ;
		2021
		2022	req->type = EIO_RENAME;
		2023	req_set_path1 (req, oldpath);
		2024	req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		2025	req->int2 = flags;
		2026	req->int3 = (long)wd2;
		2027
		2028	REQ_SEND;
		2029	}
		2030
		2031	void
935	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	2032	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
936	PPCODE:	2033	PPCODE:
937	{	2034	{
938	dREQ;	2035	dREQ;
939		2036
940	req->type = EIO_MKNOD;	2037	req->type = EIO_MKNOD;
941	req->sv1 = newSVsv (pathname);
942	req->ptr1 = SvPVbyte_nolen (req->sv1);
943	req->int2 = (mode_t)mode;	2038	req->int2 = (mode_t)mode;
944	req->offs = dev;	2039	req->offs = dev;
		2040	req_set_path1 (req, pathname);
945		2041
946	REQ_SEND;	2042	REQ_SEND;
947	}	2043	}
948		2044
949	void	2045	void
		2046	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		2047	ALIAS:
		2048	aio_mtouch = EIO_MTOUCH
		2049	aio_msync = EIO_MSYNC
		2050	PPCODE:
		2051	{
		2052	STRLEN svlen;
		2053	char *svptr = SvPVbyte (data, svlen);
		2054	UV len = SvUV (length);
		2055
		2056	if (flags < 0)
		2057	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		2058
		2059	if (offset < 0)
		2060	offset += svlen;
		2061
		2062	if (offset < 0 || offset > svlen)
		2063	croak ("offset outside of scalar");
		2064
		2065	if (!SvOK (length) || len + offset > svlen)
		2066	len = svlen - offset;
		2067
		2068	{
		2069	dREQ;
		2070
		2071	req->type = ix;
		2072	req->sv2 = SvREFCNT_inc (data);
		2073	req->ptr2 = (char *)svptr + offset;
		2074	req->size = len;
		2075	req->int1 = flags;
		2076
		2077	REQ_SEND;
		2078	}
		2079	}
		2080
		2081	void
		2082	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		2083	PPCODE:
		2084	{
		2085	STRLEN svlen;
		2086	char *svptr = SvPVbyte (data, svlen);
		2087	UV len = SvUV (length);
		2088
		2089	if (offset < 0)
		2090	offset += svlen;
		2091
		2092	if (offset < 0 || offset > svlen)
		2093	croak ("offset outside of scalar");
		2094
		2095	if (!SvOK (length) || len + offset > svlen)
		2096	len = svlen - offset;
		2097
		2098	{
		2099	dREQ;
		2100
		2101	req->type = EIO_MLOCK;
		2102	req->sv2 = SvREFCNT_inc (data);
		2103	req->ptr2 = (char *)svptr + offset;
		2104	req->size = len;
		2105
		2106	REQ_SEND;
		2107	}
		2108	}
		2109
		2110	void
		2111	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		2112	PPCODE:
		2113	{
		2114	dREQ;
		2115
		2116	req->type = EIO_MLOCKALL;
		2117	req->int1 = flags;
		2118
		2119	REQ_SEND;
		2120	}
		2121
		2122	void
		2123	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		2124	PPCODE:
		2125	{
		2126	int fd = s_fileno_croak (fh, 0);
		2127	dREQ;
		2128
		2129	req->type = EIO_CUSTOM;
		2130	req->sv1 = newSVsv (fh);
		2131	req->int1 = fd;
		2132
		2133	req->feed = fiemap;
		2134	#if HAVE_FIEMAP
		2135	/* keep our fingers crossed that the next two types are 64 bit */
		2136	req->offs = start;
		2137	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		2138	req->int2 = flags;
		2139	req->int3 = SvOK (count) ? SvIV (count) : -1;
		2140	#endif
		2141
		2142	REQ_SEND;
		2143	}
		2144
		2145	void
		2146	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		2147	PPCODE:
		2148	{
		2149	char *svptr = 0;
		2150
		2151	sv_clear_foreign (data);
		2152
		2153	if (length) /* known length, directly read into scalar */
		2154	{
		2155	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2156	svptr = sv_grow (data, length + 1);
		2157	else if (SvCUR (data) < length)
		2158	croak ("length outside of scalar, and cannot grow");
		2159	else
		2160	svptr = SvPVbyte_nolen (data);
		2161	}
		2162
		2163	{
		2164	dREQ;
		2165
		2166	req->type = EIO_SLURP;
		2167	req_set_path1 (req, pathname);
		2168	req->offs = offset;
		2169	req->size = length;
		2170	req->sv2 = SvREFCNT_inc (data);
		2171	req->ptr2 = svptr;
		2172
		2173	if (!SvREADONLY (data))
		2174	{
		2175	SvREADONLY_on (data);
		2176	req->flags |= FLAG_SV2_RO_OFF;
		2177	}
		2178
		2179	REQ_SEND;
		2180	}
		2181	}
		2182
		2183	void
950	aio_busy (double delay, SV *callback=&PL_sv_undef)	2184	aio_busy (double delay, SV *callback = &PL_sv_undef)
951	PPCODE:	2185	PPCODE:
952	{	2186	{
953	dREQ;	2187	dREQ;
954		2188
955	req->type = EIO_BUSY;	2189	req->type = EIO_BUSY;
…		…
957		2191
958	REQ_SEND;	2192	REQ_SEND;
959	}	2193	}
960		2194
961	void	2195	void
962	aio_group (SV *callback=&PL_sv_undef)	2196	aio_group (SV *callback = &PL_sv_undef)
963	PROTOTYPE: ;$
964	PPCODE:	2197	PPCODE:
965	{	2198	{
966	dREQ;	2199	dREQ;
967		2200
968	req->type = EIO_GROUP;	2201	req->type = EIO_GROUP;
969		2202
		2203	PUTBACK;
970	req_submit (req);	2204	req_submit (req);
		2205	SPAGAIN;
		2206
971	XPUSHs (req_sv (req, AIO_GRP_KLASS));	2207	XPUSHs (req_sv (req, aio_grp_stash));
972	}	2208	}
973		2209
974	void	2210	void
975	aio_nop (SV *callback=&PL_sv_undef)	2211	aio_nop (SV *callback = &PL_sv_undef)
976	ALIAS:	2212	ALIAS:
977	aio_nop = EIO_NOP	2213	aio_nop = EIO_NOP
978	aio_sync = EIO_SYNC	2214	aio_sync = EIO_SYNC
979	PPCODE:	2215	PPCODE:
980	{	2216	{
…		…
984		2220
985	REQ_SEND;	2221	REQ_SEND;
986	}	2222	}
987		2223
988	int	2224	int
989	aioreq_pri (int pri = 0)	2225	aioreq_pri (int pri = NO_INIT)
990	PROTOTYPE: ;$
991	CODE:	2226	CODE:
992	RETVAL = next_pri;	2227	RETVAL = next_pri;
993	if (items > 0)	2228	if (items > 0)
994	{	2229	{
995	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2230	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1007	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2242	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1008	next_pri = nice;	2243	next_pri = nice;
1009		2244
1010	void	2245	void
1011	flush ()	2246	flush ()
1012	PROTOTYPE:
1013	CODE:	2247	CODE:
1014	while (eio_nreqs ())	2248	while (eio_nreqs ())
1015	{	2249	{
1016	poll_wait ();	2250	poll_wait ();
1017	poll_cb ();	2251	poll_cb ();
1018	}	2252	}
1019		2253
1020	int	2254	int
1021	poll()	2255	poll ()
1022	PROTOTYPE:
1023	CODE:	2256	CODE:
1024	poll_wait ();	2257	poll_wait ();
1025	RETVAL = poll_cb ();	2258	RETVAL = poll_cb ();
1026	OUTPUT:	2259	OUTPUT:
1027	RETVAL	2260	RETVAL
1028		2261
1029	int	2262	int
1030	poll_fileno()	2263	poll_fileno ()
1031	PROTOTYPE:
1032	CODE:	2264	CODE:
1033	RETVAL = respipe [0];	2265	RETVAL = s_epipe_fd (&respipe);
1034	OUTPUT:	2266	OUTPUT:
1035	RETVAL	2267	RETVAL
1036		2268
1037	int	2269	int
1038	poll_cb(...)	2270	poll_cb (...)
1039	PROTOTYPE:	2271	PROTOTYPE:
1040	CODE:	2272	CODE:
1041	RETVAL = poll_cb ();	2273	RETVAL = poll_cb ();
1042	OUTPUT:	2274	OUTPUT:
1043	RETVAL	2275	RETVAL
1044		2276
1045	void	2277	void
1046	poll_wait()	2278	poll_wait ()
1047	PROTOTYPE:
1048	CODE:	2279	CODE:
1049	poll_wait ();	2280	poll_wait ();
1050		2281
1051	int	2282	int
1052	nreqs()	2283	nreqs ()
1053	PROTOTYPE:
1054	CODE:	2284	CODE:
1055	RETVAL = eio_nreqs ();	2285	RETVAL = eio_nreqs ();
1056	OUTPUT:	2286	OUTPUT:
1057	RETVAL	2287	RETVAL
1058		2288
1059	int	2289	int
1060	nready()	2290	nready ()
1061	PROTOTYPE:
1062	CODE:	2291	CODE:
1063	RETVAL = eio_nready ();	2292	RETVAL = eio_nready ();
1064	OUTPUT:	2293	OUTPUT:
1065	RETVAL	2294	RETVAL
1066		2295
1067	int	2296	int
1068	npending()	2297	npending ()
1069	PROTOTYPE:
1070	CODE:	2298	CODE:
1071	RETVAL = eio_npending ();	2299	RETVAL = eio_npending ();
1072	OUTPUT:	2300	OUTPUT:
1073	RETVAL	2301	RETVAL
1074		2302
1075	int	2303	int
1076	nthreads()	2304	nthreads ()
1077	PROTOTYPE:
1078	CODE:	2305	CODE:
1079	RETVAL = eio_nthreads ();	2306	RETVAL = eio_nthreads ();
1080	OUTPUT:	2307	OUTPUT:
1081	RETVAL	2308	RETVAL
1082		2309
		2310	int
		2311	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2312	CODE:
		2313	RETVAL = posix_fadvise (fh, offset, length, advice);
		2314	OUTPUT:
		2315	RETVAL
		2316
		2317	IV
		2318	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2319	CODE:
		2320	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2321	OUTPUT:
		2322	RETVAL
		2323
		2324	void
		2325	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2326	PPCODE:
		2327	sv_clear_foreign (scalar);
		2328	{
		2329	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2330	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2331	if (addr == (void *)-1)
		2332	XSRETURN_NO;
		2333
		2334	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2335
		2336	if (!(prot & PROT_WRITE))
		2337	SvREADONLY_on (scalar);
		2338
		2339	XSRETURN_YES;
		2340	}
		2341
		2342	void
		2343	munmap (SV *scalar)
		2344	CODE:
		2345	sv_clear_foreign (scalar);
		2346
		2347	SV *
		2348	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2349	CODE:
		2350	{
		2351	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2352	void *new;
		2353
		2354	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2355	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2356
		2357	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2358
		2359	RETVAL = &PL_sv_no;
		2360
		2361	if (new != (void *)-1)
		2362	{
		2363	RETVAL = new == (void *)mg->mg_ptr
		2364	? newSVpvn ("0 but true", 10)
		2365	: &PL_sv_yes;
		2366
		2367	mg->mg_ptr = (char *)new;
		2368	mg->mg_obj = (SV *)new_length;
		2369
		2370	SvPVX (scalar) = mg->mg_ptr;
		2371	SvCUR_set (scalar, new_length);
		2372	}
		2373	}
		2374	OUTPUT:
		2375	RETVAL
		2376
		2377	int
		2378	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2379	ALIAS:
		2380	mprotect = 1
		2381	CODE:
		2382	{
		2383	STRLEN svlen;
		2384	void *addr = SvPVbyte (scalar, svlen);
		2385	STRLEN len = SvUV (length);
		2386
		2387	if (offset < 0)
		2388	offset += svlen;
		2389
		2390	if (offset < 0 || offset > svlen)
		2391	croak ("offset outside of scalar");
		2392
		2393	if (!SvOK (length) || len + offset > svlen)
		2394	len = svlen - offset;
		2395
		2396	addr = (void *)(((intptr_t)addr) + offset);
		2397	eio_page_align (&addr, &len);
		2398
		2399	switch (ix)
		2400	{
		2401	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2402	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2403	}
		2404	}
		2405	OUTPUT:
		2406	RETVAL
		2407
		2408	int
		2409	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
		2410	CODE:
		2411	{
		2412	STRLEN svlen;
		2413	void *addr = SvPVbyte (scalar, svlen);
		2414	size_t len = SvUV (length);
		2415
		2416	if (offset < 0)
		2417	offset += svlen;
		2418
		2419	if (offset < 0 || offset > svlen)
		2420	croak ("offset outside of scalar");
		2421
		2422	if (!SvOK (length) || len + offset > svlen)
		2423	len = svlen - offset;
		2424
		2425	addr = (void *)(((intptr_t)addr) + offset);
		2426	eio_page_align (&addr, &len);
		2427	#if _POSIX_MEMLOCK_RANGE
		2428	RETVAL = munlock (addr, len);
		2429	#else
		2430	RETVAL = EIO_ENOSYS ();
		2431	#endif
		2432	}
		2433	OUTPUT:
		2434	RETVAL
		2435
		2436	int
		2437	mlockall (int flags)
		2438	PROTOTYPE: $;
		2439	CODE:
		2440	RETVAL = eio_mlockall_sync (flags);
		2441	OUTPUT:
		2442	RETVAL
		2443
		2444	int
		2445	munlockall ()
		2446	CODE:
		2447	#if _POSIX_MEMLOCK
		2448	munlockall ();
		2449	#else
		2450	RETVAL = EIO_ENOSYS ();
		2451	#endif
		2452	OUTPUT:
		2453	RETVAL
		2454
		2455	int
		2456	statx (SV8 *pathname, int flags, UV mask)
		2457	CODE:
		2458	{
		2459	/* undocumented, and might go away, and anyway, should use eio_statx */
		2460	SV *wdsv = 0;
		2461	SV *pathsv = 0;
		2462	eio_wd wd = EIO_CWD;
		2463	void *ptr;
		2464	int res;
		2465
		2466	req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
		2467	RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
		2468
		2469	SvREFCNT_dec (pathsv);
		2470	SvREFCNT_dec (wdsv);
		2471	}
		2472	OUTPUT:
		2473	RETVAL
		2474
		2475	U32
		2476	stx_mode ()
		2477	PROTOTYPE:
		2478	CODE:
		2479	#if HAVE_STATX
		2480	RETVAL = stx.stx_mode;
		2481	#else
		2482	XSRETURN_UNDEF;
		2483	#endif
		2484	OUTPUT:
		2485	RETVAL
		2486
		2487	#define STATX_OFFSET_mask statx_offsetof (stx_mask)
		2488	#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
		2489	#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
		2490	#define STATX_OFFSET_uid statx_offsetof (stx_uid)
		2491	#define STATX_OFFSET_gid statx_offsetof (stx_gid)
		2492	#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
		2493	#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
		2494	#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
		2495	#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
		2496	#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
		2497	#define STATX_OFFSET_ino statx_offsetof (stx_ino)
		2498	#define STATX_OFFSET_size statx_offsetof (stx_size)
		2499	#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
		2500	#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
		2501	#define STATX_OFFSET_atime statx_offsetof (stx_atime)
		2502	#define STATX_OFFSET_btime statx_offsetof (stx_btime)
		2503	#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
		2504	#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
		2505
		2506	U32
		2507	stx_mask ()
		2508	PROTOTYPE:
		2509	ALIAS:
		2510	stx_mask = STATX_OFFSET_mask
		2511	stx_blksize = STATX_OFFSET_blksize
		2512	stx_nlink = STATX_OFFSET_nlink
		2513	stx_uid = STATX_OFFSET_uid
		2514	stx_gid = STATX_OFFSET_gid
		2515	stx_rdev_major = STATX_OFFSET_rdev_major
		2516	stx_rdev_minor = STATX_OFFSET_rdev_minor
		2517	stx_dev_major = STATX_OFFSET_dev_major
		2518	stx_dev_minor = STATX_OFFSET_dev_minor
		2519	CODE:
		2520	#if HAVE_STATX
		2521	RETVAL = *(__u32 *)((char *)&stx + ix);
		2522	#else
		2523	XSRETURN_UNDEF;
		2524	#endif
		2525	OUTPUT:
		2526	RETVAL
		2527
		2528	VAL64
		2529	stx_attributes ()
		2530	PROTOTYPE:
		2531	ALIAS:
		2532	stx_attributes = STATX_OFFSET_attributes
		2533	stx_ino = STATX_OFFSET_ino
		2534	stx_size = STATX_OFFSET_size
		2535	stx_blocks = STATX_OFFSET_blocks
		2536	stx_attributes_mask = STATX_OFFSET_attributes_mask
		2537	CODE:
		2538	#if HAVE_STATX
		2539	RETVAL = *(__u64 *)((char *)&stx + ix);
		2540	#else
		2541	XSRETURN_UNDEF;
		2542	#endif
		2543	OUTPUT:
		2544	RETVAL
		2545
		2546	NV
		2547	stx_atime ()
		2548	PROTOTYPE:
		2549	ALIAS:
		2550	stx_atime = STATX_OFFSET_atime
		2551	stx_btime = STATX_OFFSET_btime
		2552	stx_ctime = STATX_OFFSET_ctime
		2553	stx_mtime = STATX_OFFSET_mtime
		2554	CODE:
		2555	#if HAVE_STATX
		2556	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2557	RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
		2558	#else
		2559	XSRETURN_UNDEF;
		2560	#endif
		2561	OUTPUT:
		2562	RETVAL
		2563
		2564	VAL64
		2565	stx_atimesec ()
		2566	PROTOTYPE:
		2567	ALIAS:
		2568	stx_atimesec = STATX_OFFSET_atime
		2569	stx_btimesec = STATX_OFFSET_btime
		2570	stx_ctimesec = STATX_OFFSET_ctime
		2571	stx_mtimesec = STATX_OFFSET_mtime
		2572	CODE:
		2573	#if HAVE_STATX
		2574	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2575	RETVAL = ts->tv_sec;
		2576	#else
		2577	XSRETURN_UNDEF;
		2578	#endif
		2579	OUTPUT:
		2580	RETVAL
		2581
		2582	U32
		2583	stx_atimensec ()
		2584	PROTOTYPE:
		2585	ALIAS:
		2586	stx_atimensec = STATX_OFFSET_atime
		2587	stx_btimensec = STATX_OFFSET_btime
		2588	stx_ctimensec = STATX_OFFSET_ctime
		2589	stx_mtimensec = STATX_OFFSET_mtime
		2590	CODE:
		2591	#if HAVE_STATX
		2592	struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
		2593	RETVAL = ts->tv_nsec;
		2594	#else
		2595	RETVAL = 0;
		2596	#endif
		2597	OUTPUT:
		2598	RETVAL
		2599
		2600	void
		2601	accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
		2602	PPCODE:
		2603	{
		2604	SV *retval;
		2605	#if HAVE_ACCEPT4
		2606	socklen_t salen_ = salen ? salen + 1 : 0;
		2607
		2608	if (salen)
		2609	{
		2610	sv_upgrade (sockaddr, SVt_PV);
		2611	sv_grow (sockaddr, salen_);
		2612	}
		2613
		2614	int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
		2615
		2616	retval = newmortalFH (res, O_RDWR);
		2617
		2618	if (res >= 0 && salen > 0)
		2619	{
		2620	if (salen_ > salen + 1)
		2621	salen_ = salen + 1;
		2622
		2623	SvPOK_only (sockaddr);
		2624	SvCUR_set (sockaddr, salen_);
		2625	}
		2626	#else
		2627	errno = ENOSYS;
		2628	retval = &PL_sv_undef;
		2629	#endif
		2630	XPUSHs (retval);
		2631	}
		2632
		2633	ssize_t
		2634	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2635	CODE:
		2636	{
		2637	#if HAVE_LINUX_SPLICE
		2638	loff_t off_in_, off_out_;
		2639	RETVAL = splice (
		2640	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2641	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2642	length, flags
		2643	);
		2644	#else
		2645	RETVAL = EIO_ENOSYS ();
		2646	#endif
		2647	}
		2648	OUTPUT:
		2649	RETVAL
		2650
		2651	ssize_t
		2652	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2653	CODE:
		2654	#if HAVE_LINUX_SPLICE
		2655	RETVAL = tee (rfh, wfh, length, flags);
		2656	#else
		2657	RETVAL = EIO_ENOSYS ();
		2658	#endif
		2659	OUTPUT:
		2660	RETVAL
		2661
		2662	int
		2663	pipesize (aio_rfd rfh, int new_size = -1)
		2664	PROTOTYPE: $;$
		2665	CODE:
		2666	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2667	if (new_size >= 0)
		2668	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2669	else
		2670	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2671	#else
		2672	errno = ENOSYS;
		2673	RETVAL = -1;
		2674	#endif
		2675	OUTPUT:
		2676	RETVAL
		2677
		2678	void
		2679	pipe2 (int flags = 0)
		2680	PROTOTYPE: ;$
		2681	PPCODE:
		2682	{
		2683	int fd[2];
		2684	int res;
		2685
		2686	if (flags)
		2687	#if HAVE_PIPE2
		2688	res = pipe2 (fd, flags);
		2689	#else
		2690	res = (errno = ENOSYS, -1);
		2691	#endif
		2692	else
		2693	res = pipe (fd);
		2694
		2695	if (!res)
		2696	{
		2697	EXTEND (SP, 2);
		2698	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2699	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2700	}
		2701	}
		2702
		2703	void
		2704	pidfd_open (int pid, unsigned int flags = 0)
		2705	PPCODE:
		2706	{
		2707	/*GENDEF0_SYSCALL(pidfd_open,434)*/
		2708	int fd = syscall (SYS_pidfd_open, pid, flags);
		2709	XPUSHs (newmortalFH (fd, O_RDWR));
		2710	}
		2711
		2712	int
		2713	pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
		2714	PPCODE:
		2715	{
		2716	int res;
		2717	#if HAVE_SIGINFO_T
		2718	siginfo_t si = { 0 };
		2719
		2720	if (SvOK (siginfo))
		2721	{
		2722	HV *hv;
		2723	SV **svp;
		2724
		2725	if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
		2726	croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
		2727
		2728	hv = (HV *)SvRV (siginfo);
		2729
		2730	if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
		2731	if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
		2732	if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
		2733	if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
		2734	if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
		2735	}
		2736
		2737	/*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
		2738	res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
		2739	#else
		2740	res = (errno = ENOSYS, -1);
		2741	#endif
		2742
		2743	XPUSHs (sv_2mortal (newSViv (res)));
		2744	}
		2745
		2746	void
		2747	pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
		2748	PPCODE:
		2749	{
		2750	/*GENDEF0_SYSCALL(pidfd_getfd,438)*/
		2751	int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
		2752	XPUSHs (newmortalFH (fd, O_RDWR));
		2753	}
		2754
		2755	void
		2756	eventfd (unsigned int initval = 0, int flags = 0)
		2757	PPCODE:
		2758	{
		2759	int fd;
		2760	#if HAVE_EVENTFD
		2761	fd = eventfd (initval, flags);
		2762	#else
		2763	fd = (errno = ENOSYS, -1);
		2764	#endif
		2765
		2766	XPUSHs (newmortalFH (fd, O_RDWR));
		2767	}
		2768
		2769	void
		2770	timerfd_create (int clockid, int flags = 0)
		2771	PPCODE:
		2772	{
		2773	int fd;
		2774	#if HAVE_TIMERFD
		2775	fd = timerfd_create (clockid, flags);
		2776	#else
		2777	fd = (errno = ENOSYS, -1);
		2778	#endif
		2779
		2780	XPUSHs (newmortalFH (fd, O_RDWR));
		2781	}
		2782
		2783	void
		2784	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2785	PPCODE:
		2786	{
		2787	int fd = s_fileno_croak (fh, 0);
		2788	#if HAVE_TIMERFD
		2789	int res;
		2790	struct itimerspec its, ots;
		2791
		2792	ts_set (&its.it_interval, interval);
		2793	ts_set (&its.it_value , value);
		2794	res = timerfd_settime (fd, flags, &its, &ots);
		2795
		2796	if (!res)
		2797	{
		2798	EXTEND (SP, 2);
		2799	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2800	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2801	}
		2802	#else
		2803	errno = ENOSYS;
		2804	#endif
		2805	}
		2806
		2807	void
		2808	timerfd_gettime (SV *fh)
		2809	PPCODE:
		2810	{
		2811	int fd = s_fileno_croak (fh, 0);
		2812	#if HAVE_TIMERFD
		2813	int res;
		2814	struct itimerspec ots;
		2815	res = timerfd_gettime (fd, &ots);
		2816
		2817	if (!res)
		2818	{
		2819	EXTEND (SP, 2);
		2820	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2821	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2822	}
		2823	#else
		2824	errno = ENOSYS;
		2825	#endif
		2826	}
		2827
		2828	void
		2829	memfd_create (SV8 *pathname, int flags = 0)
		2830	PPCODE:
		2831	{
		2832	int fd;
		2833	#if HAVE_MEMFD_CREATE
		2834	fd = memfd_create (SvPVbyte_nolen (pathname), flags);
		2835	#else
		2836	fd = (errno = ENOSYS, -1);
		2837	#endif
		2838
		2839	XPUSHs (newmortalFH (fd, O_RDWR));
		2840	}
		2841
		2842	int
		2843	fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
		2844	CODE:
		2845	{
		2846	int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
		2847	char **envp, **argv;
		2848	argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
		2849	if (!SvOK (envs))
		2850	{
		2851	extern char **environ;
		2852	envp = environ;
		2853	}
		2854	else
		2855	envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
		2856	#if _POSIX_VERSION >= 200809L
		2857	RETVAL = fexecve (fd, argv, envp);
		2858	#else
		2859	RETVAL = (errno = ENOSYS, -1);
		2860	#endif
		2861	}
		2862	OUTPUT: RETVAL
		2863
		2864	UV
		2865	get_fdlimit ()
		2866	CODE:
		2867	#if HAVE_RLIMITS
		2868	struct rlimit rl;
		2869	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2870	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2871	#endif
		2872	XSRETURN_UNDEF;
		2873	OUTPUT:
		2874	RETVAL
		2875
		2876	void
		2877	min_fdlimit (UV limit = 0x7fffffffU)
		2878	CODE:
		2879	{
		2880	#if HAVE_RLIMITS
		2881	struct rlimit rl;
		2882	rlim_t orig_rlim_max;
		2883	UV bit;
		2884
		2885	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2886	goto fail;
		2887
		2888	if (rl.rlim_cur == RLIM_INFINITY)
		2889	XSRETURN_YES;
		2890
		2891	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2892
		2893	if (rl.rlim_cur < limit)
		2894	{
		2895	rl.rlim_cur = limit;
		2896
		2897	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2898	rl.rlim_max = rl.rlim_cur;
		2899	}
		2900
		2901	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2902	XSRETURN_YES;
		2903
		2904	if (errno == EPERM)
		2905	{
		2906	/* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2907	/* our limit overflows a system-wide limit */
		2908	/* try an adaptive algorithm, but do not lower the hardlimit */
		2909	rl.rlim_max = 0;
		2910	for (bit = 0x40000000U; bit; bit >>= 1)
		2911	{
		2912	rl.rlim_max |= bit;
		2913	rl.rlim_cur = rl.rlim_max;
		2914
		2915	/* never decrease the hard limit */
		2916	if (rl.rlim_max < orig_rlim_max)
		2917	break;
		2918
		2919	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2920	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2921	}
		2922
		2923	/* now, raise the soft limit to the max permitted */
		2924	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2925	{
		2926	rl.rlim_cur = rl.rlim_max;
		2927	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2928	errno = EPERM;
		2929	}
		2930	}
		2931	#endif
		2932	fail:
		2933	XSRETURN_UNDEF;
		2934	}
		2935
1083	void _on_next_submit (SV *cb)	2936	void _on_next_submit (SV *cb)
1084	CODE:	2937	CODE:
1085	SvREFCNT_dec (on_next_submit);	2938	SvREFCNT_dec (on_next_submit);
1086	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2939	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1087		2940
1088	PROTOTYPES: DISABLE	2941	PROTOTYPES: DISABLE
1089		2942
		2943	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2944
		2945	BOOT:
		2946	{
		2947	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2948	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2949	}
		2950
		2951	void
		2952	DESTROY (SV *self)
		2953	CODE:
		2954	{
		2955	aio_wd wd = SvAIO_WD (self);
		2956	#if HAVE_AT
		2957	{
		2958	SV *callback = &PL_sv_undef;
		2959	dREQ; /* clobbers next_pri :/ */
		2960	next_pri = req->pri; /* restore next_pri */
		2961	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2962	req->type = EIO_WD_CLOSE;
		2963	req->wd = wd;
		2964	REQ_SEND;
		2965	}
		2966	#else
		2967	eio_wd_close_sync (wd);
		2968	#endif
		2969	}
		2970
1090	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2971	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1091		2972
1092	void	2973	void
1093	cancel (aio_req_ornot req)	2974	cancel (aio_req_ornot req)
1094	CODE:	2975	CODE:
1095	eio_cancel (req);	2976	eio_cancel (req);
1096		2977
1097	void	2978	void
1098	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2979	cb (aio_req_ornot req, SV *callback = NO_INIT)
1099	PPCODE:	2980	PPCODE:
1100	{	2981	{
1101	if (GIMME_V != G_VOID)	2982	if (GIMME_V != G_VOID)
1102	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2983	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1103		2984
…		…
1148	AV *av;	3029	AV *av;
1149		3030
1150	grp->errorno = errno;	3031	grp->errorno = errno;
1151		3032
1152	av = newAV ();	3033	av = newAV ();
		3034	av_extend (av, items - 1);
1153		3035
1154	for (i = 1; i < items; ++i )	3036	for (i = 1; i < items; ++i )
1155	av_push (av, newSVsv (ST (i)));	3037	av_push (av, newSVsv (ST (i)));
1156		3038
1157	SvREFCNT_dec (grp->sv1);	3039	SvREFCNT_dec (grp->sv1);
…		…
1167	limit (aio_req grp, int limit)	3049	limit (aio_req grp, int limit)
1168	CODE:	3050	CODE:
1169	eio_grp_limit (grp, limit);	3051	eio_grp_limit (grp, limit);
1170		3052
1171	void	3053	void
1172	feed (aio_req grp, SV *callback=&PL_sv_undef)	3054	feed (aio_req grp, SV *callback = &PL_sv_undef)
1173	CODE:	3055	CODE:
1174	{	3056	{
1175	SvREFCNT_dec (grp->sv2);	3057	SvREFCNT_dec (grp->sv2);
1176	grp->sv2 = newSVsv (callback);	3058	grp->sv2 = newSVsv (callback);
1177	grp->feed = aio_grp_feed;	3059	grp->feed = aio_grp_feed;

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