[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.143 by root, Sat Jun 6 19:44:17 2009 UTC vs.
Revision 1.268 by root, Thu Nov 29 19:49:48 2018 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
		9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
8		12
9	#include <stddef.h>	13	#include <stddef.h>
10	#include <stdlib.h>	14	#include <stdlib.h>
11	#include <errno.h>	15	#include <errno.h>
12	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
13	#include <sys/stat.h>	18	#include <sys/stat.h>
14	#include <limits.h>	19	#include <limits.h>
15	#include <fcntl.h>	20	#include <fcntl.h>
16	#include <sched.h>	21	#include <sched.h>
17		22
		23	/* the incompetent fool that created musl keeps __linux__, refuses
		24	* to implement any linux standard apis, and also has no way to test
		25	* for his broken iplementation. don't complain to me if this fails
		26	* for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
18	/* perl namespace pollution */	37	/* perl namespace pollution */
19	#undef VERSION	38	#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		39
70	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	42	#undef readdir
73	#undef opendir	43	#undef opendir
74	#undef closedir	44	#undef closedir
75		45
		46	#ifdef _WIN32
		47
		48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
		52	#undef open
		53	#undef read
		54	#undef write
		55	#undef send
		56	#undef recv
		57	#undef stat
		58	#undef lstat
		59	#undef fstat
		60	#undef truncate
		61	#undef ftruncate
		62	#undef open
		63	#undef link
		64	#undef close
		65	#undef unlink
		66	#undef mkdir
		67	#undef rmdir
		68	#undef rename
		69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
		79	#undef utime
		80
		81	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
77		83
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	84	#else
82	# define SvVAL64 SvNV	85
		86	#include <sys/time.h>
		87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
83	#endif	94	#endif
84		95
85	/*****************************************************************************/	96	/*****************************************************************************/
86		97
87	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
95		106
96	/*****************************************************************************/	107	/*****************************************************************************/
97		108
98	static HV *stash;	109	#include "config.h"
		110
		111	#if HAVE_SYS_MKDEV_H
		112	# include <sys/mkdev.h>
		113	#elif HAVE_SYS_SYSMACROS_H
		114	# include <sys/sysmacros.h>
		115	#endif
		116
		117	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES
		118	# include <sys/mman.h>
		119	#endif
		120
		121	#if HAVE_ST_XTIMENSEC
		122	# define ATIMENSEC PL_statcache.st_atimensec
		123	# define MTIMENSEC PL_statcache.st_mtimensec
		124	# define CTIMENSEC PL_statcache.st_ctimensec
		125	#elif HAVE_ST_XTIMESPEC
		126	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		127	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		128	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		129	#else
		130	# define ATIMENSEC 0
		131	# define MTIMENSEC 0
		132	# define CTIMENSEC 0
		133	#endif
		134
		135	#if HAVE_ST_BIRTHTIMENSEC
		136	# define BTIMESEC PL_statcache.st_birthtime
		137	# define BTIMENSEC PL_statcache.st_birthtimensec
		138	#elif HAVE_ST_BIRTHTIMESPEC
		139	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		140	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		141	#else
		142	# define BTIMESEC 0
		143	# define BTIMENSEC 0
		144	#endif
		145
		146	#if HAVE_ST_GEN
		147	# define ST_GEN PL_statcache.st_gen
		148	#else
		149	# define ST_GEN 0
		150	#endif
		151
		152	#include "schmorp.h"
		153
		154	#if HAVE_EVENTFD
		155	# include <sys/eventfd.h>
		156	#endif
		157
		158	#if HAVE_TIMERFD
		159	# include <sys/timerfd.h>
		160	#endif
		161
		162	#if HAVE_RLIMITS
		163	#include <sys/time.h>
		164	#include <sys/resource.h>
		165	#endif
		166
99	typedef SV SV8; /* byte-sv, used for argument-checking */	167	typedef SV SV8; /* byte-sv, used for argument-checking */
		168	typedef int aio_rfd; /* read file desriptor */
		169	typedef int aio_wfd; /* write file descriptor */
100		170
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	171	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		172
104	#define EIO_REQ_MEMBERS \	173	#define EIO_REQ_MEMBERS \
105	SV *callback; \	174	SV *callback; \
106	SV sv1, sv2; \	175	SV sv1, sv2; \
		176	SV sv3, sv4; \
107	STRLEN stroffset; \	177	STRLEN stroffset; \
108	SV *self;	178	SV *self;
109		179
110	#define EIO_NO_WRAPPERS 1	180	#define EIO_NO_WRAPPERS 1
111		181
…		…
114	static int req_invoke (eio_req *req);	184	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	185	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	186	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	187	#define EIO_DESTROY(req) req_destroy (req)
118		188
		189	#include "libeio/eio.c"
		190
		191	#if !HAVE_POSIX_FADVISE
		192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		193	#endif
		194
		195	#if !HAVE_POSIX_MADVISE
		196	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		197	#endif
		198
		199	#ifndef MAP_ANONYMOUS
		200	# ifdef MAP_ANON
		201	# define MAP_ANONYMOUS MAP_ANON
		202	# else
		203	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		204	# endif
		205	#endif
		206
		207	#ifndef makedev
		208	# define makedev(maj,min) (((maj) << 8) \| (min))
		209	#endif
		210	#ifndef major
		211	# define major(dev) ((dev) >> 8)
		212	#endif
		213	#ifndef minor
		214	# define minor(dev) ((dev) & 0xff)
		215	#endif
		216
		217	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		218	#ifdef __sun
		219	# undef PAGESIZE
		220	#endif
		221
		222	#if PAGESIZE <= 0
		223	# define PAGESIZE sysconf (_SC_PAGESIZE)
		224	#endif
		225
		226	/*****************************************************************************/
		227
		228	#if !_POSIX_MAPPED_FILES
		229	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		230	# define munmap(addr,length) EIO_ENOSYS ()
		231	#endif
		232
		233	#if !_POSIX_MEMORY_PROTECTION
		234	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		235	#endif
		236
		237	#if !MREMAP_MAYMOVE
		238	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		239	#endif
		240
		241	#define FOREIGN_MAGIC PERL_MAGIC_ext
		242
		243	static int ecb_cold
		244	mmap_free (pTHX_ SV sv, MAGIC mg)
		245	{
		246	int old_errno = errno;
		247	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		248	errno = old_errno;
		249
		250	mg->mg_obj = 0; /* just in case */
		251
		252	SvREADONLY_off (sv);
		253
		254	if (SvPVX (sv) != mg->mg_ptr)
		255	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		256
		257	SvCUR_set (sv, 0);
		258	SvPVX (sv) = 0;
		259	SvOK_off (sv);
		260
		261	return 0;
		262	}
		263
		264	static MGVTBL mmap_vtbl = {
		265	0, 0, 0, 0, mmap_free
		266	};
		267
		268	static int ecb_cold
		269	sysfree_free (pTHX_ SV sv, MAGIC mg)
		270	{
		271	free (mg->mg_ptr);
		272	mg->mg_obj = 0; /* just in case */
		273
		274	SvREADONLY_off (sv);
		275
		276	if (SvPVX (sv) != mg->mg_ptr)
		277	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		278
		279	SvCUR_set (sv, 0);
		280	SvPVX (sv) = 0;
		281	SvOK_off (sv);
		282
		283	return 0;
		284	}
		285
		286	static MGVTBL sysfree_vtbl = {
		287	0, 0, 0, 0, sysfree_free
		288	};
		289
		290	/*****************************************************************************/
		291
		292	/* helper: set scalar to foreign ptr with custom free */
		293	static void
		294	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		295	{
		296	sv_force_normal (sv);
		297
		298	/* we store the length in mg_obj, as namlen is I32 :/ */
		299	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		300	->mg_obj = (SV *)length;
		301
		302	SvUPGRADE (sv, SVt_PV); /* nop... */
		303
		304	if (SvLEN (sv))
		305	Safefree (SvPVX (sv));
		306
		307	SvPVX (sv) = (char *)addr;
		308	SvCUR_set (sv, length);
		309	SvLEN_set (sv, 0);
		310	SvPOK_only (sv);
		311	}
		312
		313	static void
		314	sv_clear_foreign (SV *sv)
		315	{
		316	/* todo: iterate over magic and only free ours, but of course */
		317	/* the perl5porters will call that (correct) behaviour buggy */
		318	sv_unmagic (sv, FOREIGN_MAGIC);
		319	}
		320
		321	/*****************************************************************************/
		322
		323	/* defines all sorts of constants to 0 unless they are already defined */
		324	/* also provides const_iv_ and const_niv_ macros for them */
		325	#include "def0.h"
		326
		327	/*****************************************************************************/
		328
		329	static void
		330	fiemap (eio_req *req)
		331	{
		332	req->result = -1;
		333
		334	#if HAVE_FIEMAP
		335	/* assume some c99 */
		336	struct fiemap *fiemap = 0;
		337	size_t end_offset;
		338	int count = req->int3;
		339
		340	req->flags \|= EIO_FLAG_PTR1_FREE;
		341
		342	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		343	/* increase in 3.5kb steps */
		344	if (count < 0)
		345	count = 8;
		346
		347	fiemap = malloc (sizeof (fiemap) + sizeof (struct fiemap_extent) count);
		348	errno = ENOMEM;
		349	if (!fiemap)
		350	return;
		351
		352	req->ptr1 = fiemap;
		353
		354	fiemap->fm_start = req->offs;
		355	fiemap->fm_length = req->size;
		356	fiemap->fm_flags = req->int2;
		357	fiemap->fm_extent_count = count;
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		360	return;
		361
		362	if (req->int3 >= 0 /* not autosizing */
		363	\|\| !fiemap->fm_mapped_extents /* no more extents */
		364	\|\| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		365	goto done;
		366
		367	/* else we have to loop -
		368	* it would be tempting (actually I tried that first) to just query the
		369	* number of extents needed, but linux often feels like not returning all
		370	* extents, without telling us it left any out. this complicates
		371	* this quite a bit.
		372	*/
		373
		374	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		375
		376	for (;;)
		377	{
		378	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		379	char scratch[3072];
		380	struct fiemap incmap = (struct fiemap )scratch;
		381
		382	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		383	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		384	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		385	incmap->fm_flags = fiemap->fm_flags;
		386	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		387
		388	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		389	return;
		390
		391	if (!incmap->fm_mapped_extents)
		392	goto done;
		393
		394	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		395	fiemap = realloc (fiemap, sizeof (fiemap) + sizeof (struct fiemap_extent) count);
		396	errno = ENOMEM;
		397	if (!fiemap)
		398	return;
		399
		400	req->ptr1 = fiemap;
		401
		402	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		403	{
		404	struct fiemap_extent *e = incmap->fm_extents + count;
		405
		406	if (e->fe_logical + e->fe_length >= end_offset)
		407	goto done;
		408
		409	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		410
		411	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		412	goto done;
		413
		414	}
		415	}
		416
		417	done:
		418	req->result = 0;
		419
		420	#else
		421	errno = ENOSYS;
		422	#endif
		423	}
		424
		425	/*****************************************************************************/
		426
		427	static int close_fd; /* dummy fd to close fds via dup2 */
		428
119	enum {	429	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	430	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	431	};
122		432
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	433	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	434	typedef eio_req *aio_req_ornot;
		435	typedef eio_wd aio_wd;
127		436
128	static SV *on_next_submit;	437	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	438	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	439	static int max_outstanding;
131		440
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	441	static s_epipe respipe;
133		442
134	static void req_destroy (aio_req req);	443	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	444	static void req_cancel (aio_req req);
136		445
137	static void want_poll (void)	446	static void
		447	want_poll (void)
138	{	448	{
139	/* write a dummy byte to the pipe so fh becomes ready */	449	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	450	s_epipe_signal (&respipe);
141	}	451	}
142		452
143	static void done_poll (void)	453	static void
		454	done_poll (void)
144	{	455	{
145	/* read any signals sent by the worker threads */	456	/* read any signals sent by the worker threads */
146	char buf [4];	457	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	458	}
150		459
151	/* must be called at most once */	460	/* must be called at most once */
152	static SV req_sv (aio_req req, const char klass)	461	static SV *
		462	req_sv (aio_req req, HV *stash)
153	{	463	{
154	if (!req->self)	464	if (!req->self)
155	{	465	{
156	req->self = (SV *)newHV ();	466	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	467	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	468	}
159		469
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	470	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	471	}
162		472
163	static aio_req SvAIO_REQ (SV *sv)	473	static SV *
		474	newSVaio_wd (aio_wd wd)
		475	{
		476	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		477	}
		478
		479	static aio_req
		480	SvAIO_REQ (SV *sv)
164	{	481	{
165	MAGIC *mg;	482	MAGIC *mg;
166		483
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	484	if (!SvROK (sv)
		485	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		486	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		487	&& SvSTASH (SvRV (sv)) != aio_req_stash
		488	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	489	croak ("object of class IO::AIO::REQ expected");
169		490
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	491	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		492
172	return mg ? (aio_req)mg->mg_ptr : 0;	493	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	494	}
174		495
		496	static aio_wd
		497	SvAIO_WD (SV *sv)
		498	{
		499	if (!SvROK (sv)
		500	\|\| SvTYPE (SvRV (sv)) != SVt_PVMG
		501	\|\| SvSTASH (SvRV (sv)) != aio_wd_stash)
		502	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		503
		504	return (aio_wd)(long)SvIVX (SvRV (sv));
		505	}
		506
		507	static SV *
		508	newmortalFH (int fd, int flags)
		509	{
		510	if (fd < 0)
		511	return &PL_sv_undef;
		512
		513	GV gv = (GV )sv_newmortal ();
		514	char sym[64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		518	gv_init (gv, aio_stash, sym, symlen, 0);
		519
		520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	fd
		526	);
		527
		528	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		529	? (SV *)gv : &PL_sv_undef;
		530	}
		531
		532	static void
175	static void aio_grp_feed (aio_req grp)	533	aio_grp_feed (aio_req grp)
176	{	534	{
177	if (grp->sv2 && SvOK (grp->sv2))	535	if (grp->sv2 && SvOK (grp->sv2))
178	{	536	{
179	dSP;	537	dSP;
180		538
181	ENTER;	539	ENTER;
182	SAVETMPS;	540	SAVETMPS;
183	PUSHMARK (SP);	541	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	542	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	543	PUTBACK;
186	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	544	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
187	SPAGAIN;	545	SPAGAIN;
188	FREETMPS;	546	FREETMPS;
189	LEAVE;	547	LEAVE;
190	}	548	}
191	}	549	}
192		550
		551	static void
193	static void req_submit (eio_req *req)	552	req_submit (eio_req *req)
194	{	553	{
195	eio_submit (req);	554	eio_submit (req);
196		555
197	if (expect_false (on_next_submit))	556	if (expect_false (on_next_submit))
198	{	557	{
…		…
205	PUTBACK;	564	PUTBACK;
206	call_sv (cb, G_DISCARD \| G_EVAL);	565	call_sv (cb, G_DISCARD \| G_EVAL);
207	}	566	}
208	}	567	}
209		568
		569	static int
210	static int req_invoke (eio_req *req)	570	req_invoke (eio_req *req)
211	{	571	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	572	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	573	SvREADONLY_off (req->sv2);
216		574
217	if (!EIO_CANCELLED (req) && req->callback)	575	if (!EIO_CANCELLED (req) && req->callback)
218	{	576	{
		577	dSP;
		578	static SV sv_result_cache; / caches the result integer SV */
		579	SV *sv_result;
		580
219	ENTER;	581	ENTER;
220	SAVETMPS;	582	SAVETMPS;
221	PUSHMARK (SP);	583	PUSHMARK (SP);
222	EXTEND (SP, 1);	584	EXTEND (SP, 1);
223		585
		586	/* do not recreate the result IV from scratch each time */
		587	if (expect_true (sv_result_cache))
		588	{
		589	sv_result = sv_result_cache; sv_result_cache = 0;
		590	SvIV_set (sv_result, req->result);
		591	SvIOK_only (sv_result);
		592	}
		593	else
		594	{
		595	sv_result = newSViv (req->result);
		596	SvREADONLY_on (sv_result);
		597	}
		598
224	switch (req->type)	599	switch (req->type)
225	{	600	{
		601	case EIO_WD_OPEN:
		602	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		603	break;
		604
226	case EIO_READDIR:	605	case EIO_READDIR:
227	{	606	{
228	SV *rv = &PL_sv_undef;	607	SV *rv = &PL_sv_undef;
229		608
230	if (req->result >= 0)	609	if (req->result >= 0)
231	{	610	{
232	int i;	611	int i;
233	char *buf = req->ptr2;	612	char names = (char )req->ptr2;
		613	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
234	AV *av = newAV ();	614	AV *av = newAV ();
235		615
236	av_extend (av, req->result - 1);	616	av_extend (av, req->result - 1);
237		617
238	for (i = 0; i < req->result; ++i)	618	for (i = 0; i < req->result; ++i)
239	{	619	{
240	if (req->int1 & EIO_READDIR_DENTS)	620	if (req->int1 & EIO_READDIR_DENTS)
241	{	621	{
242	eio_dirent ent = (eio_dirent )buf;
243	SV *namesv = newSVpvn (ent->name, ent->namelen);	622	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
244		623
245	if (req->int1 & EIO_READDIR_CUSTOM2)	624	if (req->int1 & EIO_READDIR_CUSTOM2)
246	{	625	{
247	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */	626	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
248	AV *avent = newAV ();	627	AV *avent = newAV ();
…		…
262	av_store (av, i, newRV_noinc ((SV *)avent));	641	av_store (av, i, newRV_noinc ((SV *)avent));
263	}	642	}
264	else	643	else
265	av_store (av, i, namesv);	644	av_store (av, i, namesv);
266		645
267	buf += sizeof (eio_dirent);	646	++ent;
268	}	647	}
269	else	648	else
270	{	649	{
271	SV *name = newSVpv (buf, 0);	650	SV *name = newSVpv (names, 0);
272	av_store (av, i, name);	651	av_store (av, i, name);
273	buf += SvCUR (name) + 1;	652	names += SvCUR (name) + 1;
274	}	653	}
275	}	654	}
276		655
277	rv = sv_2mortal (newRV_noinc ((SV *)av));	656	rv = sv_2mortal (newRV_noinc ((SV *)av));
278	}	657	}
…		…
283	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));	662	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
284	}	663	}
285	break;	664	break;
286		665
287	case EIO_OPEN:	666	case EIO_OPEN:
		667	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR)));
		668	break;
		669
		670	case EIO_STATVFS:
		671	case EIO_FSTATVFS:
288	{	672	{
289	/* convert fd to fh */
290	SV *fh = &PL_sv_undef;	673	SV *rv = &PL_sv_undef;
291		674
		675	#ifndef _WIN32
292	if (req->result >= 0)	676	if (req->result >= 0)
293	{	677	{
		678	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
294	GV gv = (GV )sv_newmortal ();	679	HV *hv = newHV ();
295	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	680	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
296	char sym [64];	681	* chooses to make it a struct.
297	int symlen;
298		682	*/
299	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	683	unsigned long fsid = 0;
300	gv_init (gv, stash, sym, symlen, 0);	684	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
301		685
302	symlen = snprintf (	686	rv = sv_2mortal (newRV_noinc ((SV *)hv));
303	sym,
304	sizeof (sym),
305	"%s&=%d",
306	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307	req->result
308	);
309		687
310	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	688	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
311	fh = (SV *)gv;	689	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		690	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		691	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		692	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		693	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		694	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		695	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		696	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		697	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		698	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
312	}	699	}
		700	#endif
313		701
314	PUSHs (fh);	702	PUSHs (rv);
315	}	703	}
		704
316	break;	705	break;
317		706
318	case EIO_GROUP:	707	case EIO_GROUP:
319	req->int1 = 2; /* mark group as finished */	708	req->int1 = 2; /* mark group as finished */
320		709
…		…
332	case EIO_NOP:	721	case EIO_NOP:
333	case EIO_BUSY:	722	case EIO_BUSY:
334	break;	723	break;
335		724
336	case EIO_READLINK:	725	case EIO_READLINK:
		726	case EIO_REALPATH:
337	if (req->result > 0)	727	if (req->result > 0)
338	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	728	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
339	break;	729	break;
340		730
341	case EIO_STAT:	731	case EIO_STAT:
342	case EIO_LSTAT:	732	case EIO_LSTAT:
343	case EIO_FSTAT:	733	case EIO_FSTAT:
344	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	734	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		735
345	PL_laststatval = req->result;	736	if (!(PL_laststatval = req->result))
		737	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
346	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	738	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
347	PUSHs (sv_2mortal (newSViv (req->result)));	739
		740	PUSHs (sv_result);
		741	break;
		742
		743	case EIO_SEEK:
		744	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
348	break;	745	break;
349		746
350	case EIO_READ:	747	case EIO_READ:
351	{	748	{
352	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	749	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353	*SvEND (req->sv2) = 0;	750	*SvEND (req->sv2) = 0;
354	SvPOK_only (req->sv2);	751	SvPOK_only (req->sv2);
355	SvSETMAGIC (req->sv2);	752	SvSETMAGIC (req->sv2);
356	PUSHs (sv_2mortal (newSViv (req->result)));	753	PUSHs (sv_result);
357	}	754	}
358	break;	755	break;
359		756
360	case EIO_DUP2:	757	case EIO_SLURP:
		758	{
		759	if (req->result >= 0)
		760	{
		761	/* if length was originally not known, we steal the malloc'ed memory */
		762	if (req->flags & EIO_FLAG_PTR2_FREE)
		763	{
		764	req->flags &= ~EIO_FLAG_PTR2_FREE;
		765	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		766	}
		767	else
		768	{
		769	SvCUR_set (req->sv2, req->result);
		770	*SvEND (req->sv2) = 0;
		771	SvPOK_only (req->sv2);
		772	}
		773
		774	SvSETMAGIC (req->sv2);
		775	}
		776
		777	PUSHs (sv_result);
		778	}
		779	break;
		780
		781	case EIO_CUSTOM:
		782	if (req->feed == fiemap)
		783	{
		784	#if HAVE_FIEMAP
		785	if (!req->result)
		786	{
		787	struct fiemap fiemap = (struct fiemap )req->ptr1;
		788
		789	if (fiemap->fm_extent_count)
		790	{
		791	AV *av = newAV ();
		792	int i;
		793
		794	while (fiemap->fm_mapped_extents)
		795	{
		796	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		797	AV *ext_av = newAV ();
		798
		799	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		800	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		801	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		802	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		803
		804	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		805	}
		806
		807	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		808	}
		809	else
		810	{
		811	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		812	PUSHs (sv_result);
		813	}
		814	}
		815	#endif
		816	}
		817	else
		818	PUSHs (sv_result);
		819	break;
		820
		821	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
361	if (req->result > 0)	822	if (req->result > 0)
362	req->result = 0;	823	SvIV_set (sv_result, 0);
363	/* FALLTHROUGH */	824	/* FALLTHROUGH */
364		825
365	default:	826	default:
366	PUSHs (sv_2mortal (newSViv (req->result)));	827	PUSHs (sv_result);
367	break;	828	break;
368	}	829	}
369		830
370	errno = req->errorno;	831	errno = req->errorno;
371		832
372	PUTBACK;	833	PUTBACK;
373	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	834	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
374	SPAGAIN;	835	SPAGAIN;
375		836
		837	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		838	SvREFCNT_dec (sv_result);
		839	else
		840	sv_result_cache = sv_result;
		841
376	FREETMPS;	842	FREETMPS;
377	LEAVE;	843	LEAVE;
378		844
379	PUTBACK;	845	PUTBACK;
380	}	846	}
381		847
382	return !!SvTRUE (ERRSV);	848	return !!SvTRUE (ERRSV);
383	}	849	}
384		850
		851	static void
385	static void req_destroy (aio_req req)	852	req_destroy (aio_req req)
386	{	853	{
387	if (req->self)	854	if (req->self)
388	{	855	{
389	sv_unmagic (req->self, PERL_MAGIC_ext);	856	sv_unmagic (req->self, PERL_MAGIC_ext);
390	SvREFCNT_dec (req->self);	857	SvREFCNT_dec (req->self);
391	}	858	}
392		859
393	SvREFCNT_dec (req->sv1);	860	SvREFCNT_dec (req->sv1);
394	SvREFCNT_dec (req->sv2);	861	SvREFCNT_dec (req->sv2);
		862	SvREFCNT_dec (req->sv3);
		863	SvREFCNT_dec (req->sv4);
395	SvREFCNT_dec (req->callback);	864	SvREFCNT_dec (req->callback);
396		865
397	Safefree (req);	866	free (req);
398	}	867	}
399		868
		869	static void
400	static void req_cancel_subs (aio_req grp)	870	req_cancel_subs (aio_req grp)
401	{	871	{
402	aio_req sub;
403
404	if (grp->type != EIO_GROUP)	872	if (grp->type != EIO_GROUP)
405	return;	873	return;
406		874
407	SvREFCNT_dec (grp->sv2);	875	SvREFCNT_dec (grp->sv2);
408	grp->sv2 = 0;	876	grp->sv2 = 0;
409		877
410	eio_grp_cancel (grp);	878	eio_grp_cancel (grp);
411	}	879	}
412		880
413	#ifdef USE_SOCKETS_AS_HANDLES	881	static void ecb_cold
414	# define TO_SOCKET(x) (win32_get_osfhandle (x))	882	create_respipe (void)
415	#else	883	{
416	# define TO_SOCKET(x) (x)	884	if (s_epipe_renew (&respipe))
417	#endif	885	croak ("IO::AIO: unable to initialize result pipe");
		886	}
418		887
419	static void	888	static void
420	create_respipe (void)	889	poll_wait (void)
421	{	890	{
422	int old_readfd = respipe [0];
423
424	if (respipe [1] >= 0)
425	respipe_close (TO_SOCKET (respipe [1]));
426
427	#ifdef _WIN32
428	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
429	#else
430	if (pipe (respipe))
431	#endif
432	croak ("unable to initialize result pipe");
433
434	if (old_readfd >= 0)
435	{
436	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
437	croak ("unable to initialize result pipe(2)");
438
439	respipe_close (respipe [0]);
440	respipe [0] = old_readfd;
441	}
442
443	#ifdef _WIN32
444	int arg = 1;
445	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
446	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
447	#else
448	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
449	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
450	#endif
451	croak ("unable to initialize result pipe(3)");
452
453	respipe_osf [0] = TO_SOCKET (respipe [0]);
454	respipe_osf [1] = TO_SOCKET (respipe [1]);
455	}
456
457	static void poll_wait (void)
458	{
459	fd_set rfd;
460
461	while (eio_nreqs ())	891	while (eio_nreqs ())
462	{	892	{
463	int size;	893	int size;
464		894
465	X_LOCK (reslock);	895	X_LOCK (EIO_POOL->reslock);
466	size = res_queue.size;	896	size = EIO_POOL->res_queue.size;
467	X_UNLOCK (reslock);	897	X_UNLOCK (EIO_POOL->reslock);
468		898
469	if (size)	899	if (size)
470	return;	900	return;
471		901
472	etp_maybe_start_thread ();	902	etp_maybe_start_thread (EIO_POOL);
473		903
474	FD_ZERO (&rfd);	904	s_epipe_wait (&respipe);
475	FD_SET (respipe [0], &rfd);
476
477	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478	}	905	}
479	}	906	}
480		907
481	static int poll_cb (void)	908	static int
		909	poll_cb (void)
482	{	910	{
483	for (;;)	911	for (;;)
484	{	912	{
485	int res = eio_poll ();	913	int res = eio_poll ();
486		914
…		…
492		920
493	poll_wait ();	921	poll_wait ();
494	}	922	}
495	}	923	}
496		924
497	static void atfork_child (void)	925	static void ecb_cold
		926	reinit (void)
498	{	927	{
499	create_respipe ();	928	create_respipe ();
		929
		930	if (eio_init (want_poll, done_poll) < 0)
		931	croak ("IO::AIO: unable to initialise eio library");
500	}	932	}
		933
		934	/*****************************************************************************/
501		935
502	static SV *	936	static SV *
503	get_cb (SV *cb_sv)	937	get_cb (SV *cb_sv)
504	{	938	{
505	HV *st;	939	SvGETMAGIC (cb_sv);
506	GV *gvp;	940	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		941	}
		942
		943	static aio_req ecb_noinline
		944	dreq (SV *callback)
		945	{
507	CV *cv;	946	SV *cb_cv;
		947	aio_req req;
		948	int req_pri = next_pri;
		949	next_pri = EIO_PRI_DEFAULT;
508		950
509	if (!SvOK (cb_sv))	951	cb_cv = get_cb (callback);
		952
		953	req = calloc (sizeof (*req), 1);
		954	if (!req)
		955	croak ("out of memory during eio_req allocation");
		956
		957	req->callback = SvREFCNT_inc (cb_cv);
		958	req->pri = req_pri;
		959
510	return 0;	960	return req;
511
512	cv = sv_2cv (cb_sv, &st, &gvp, 0);
513
514	if (!cv)
515	croak ("IO::AIO callback must be undef or a CODE reference");
516
517	return (SV *)cv;
518	}	961	}
519		962
520	#define dREQ \	963	#define dREQ \
521	SV *cb_cv; \	964	aio_req req = dreq (callback); \
522	aio_req req; \
523	int req_pri = next_pri; \
524	next_pri = EIO_PRI_DEFAULT; \
525	\
526	cb_cv = get_cb (callback); \
527	\
528	Newz (0, req, 1, eio_req); \
529	if (!req) \
530	croak ("out of memory during eio_req allocation"); \
531	\
532	req->callback = SvREFCNT_inc (cb_cv); \
533	req->pri = req_pri
534		965
535	#define REQ_SEND \	966	#define REQ_SEND \
536	PUTBACK; \	967	PUTBACK; \
537	req_submit (req); \	968	req_submit (req); \
538	SPAGAIN; \	969	SPAGAIN; \
539	\	970	\
540	if (GIMME_V != G_VOID) \	971	if (GIMME_V != G_VOID) \
541	XPUSHs (req_sv (req, AIO_REQ_KLASS));	972	XPUSHs (req_sv (req, aio_req_stash));
542		973
		974	ecb_inline void
		975	req_set_path (aio_req req, SV path, SV wdsv, SV pathsv, eio_wd wd, void **ptr)
		976	{
		977	if (expect_false (SvROK (path)))
		978	{
		979	SV *rv = SvRV (path);
		980	SV *wdob;
		981
		982	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		983	{
		984	path = AvARRAY (rv)[1];
		985	wdob = AvARRAY (rv)[0];
		986
		987	if (SvOK (wdob))
		988	{
		989	*wd = SvAIO_WD (wdob);
		990	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		991	}
		992	else
		993	*wd = EIO_INVALID_WD;
		994	}
		995	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		996	{
		997	*wd = (aio_wd)(long)SvIVX (rv);
		998	*wdsv = SvREFCNT_inc_NN (rv);
		999	*ptr = ".";
		1000	return; /* path set to "." */
		1001	}
		1002	else
		1003	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		1004	}
		1005
		1006	*pathsv = newSVsv (path);
		1007	ptr = SvPVbyte_nolen (pathsv);
		1008	}
		1009
		1010	static void ecb_noinline
		1011	req_set_path1 (aio_req req, SV *path)
		1012	{
		1013	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		1014	}
		1015
		1016	static void ecb_noinline
		1017	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		1018	{
		1019	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		1020
		1021	switch (SvTYPE (rv))
		1022	{
		1023	case SVt_PVIO:
		1024	case SVt_PVLV:
		1025	case SVt_PVGV:
		1026	req->type = type_fh;
		1027	req->sv1 = newSVsv (fh_or_path);
		1028	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1029	break;
		1030
		1031	default:
		1032	req->type = type_path;
		1033	req_set_path1 (req, fh_or_path);
		1034	break;
		1035	}
		1036	}
		1037
		1038	/*****************************************************************************/
		1039
543	static int	1040	static void
544	extract_fd (SV *fh, int wr)	1041	ts_set (struct timespec *ts, NV value)
545	{	1042	{
546	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	1043	ts->tv_sec = value;
547		1044	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
548	if (fd < 0)
549	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
550
551	return fd;
552	}	1045	}
		1046
		1047	static NV
		1048	ts_get (const struct timespec *ts)
		1049	{
		1050	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1051	}
		1052
		1053	/*****************************************************************************/
		1054
		1055	XS(boot_IO__AIO) ecb_cold;
553		1056
554	MODULE = IO::AIO PACKAGE = IO::AIO	1057	MODULE = IO::AIO PACKAGE = IO::AIO
555		1058
556	PROTOTYPES: ENABLE	1059	PROTOTYPES: ENABLE
557		1060
558	BOOT:	1061	BOOT:
559	{	1062	{
560	stash = gv_stashpv ("IO::AIO", 1);
561
562	static const struct {	1063	static const struct {
563	const char *name;	1064	const char *name;
564	IV iv;	1065	IV iv;
565	} *civ, const_iv[] = {	1066	} *civ, const_iv[] = {
566	# define const_iv(name, value) { # name, (IV) value },	1067	# define const_niv(name, value) { # name, (IV) value },
		1068	# define const_iv(name) { # name, (IV) name },
567	# define const_eio(name) { # name, (IV) EIO_ ## name },	1069	# define const_eio(name) { # name, (IV) EIO_ ## name },
568	const_iv (EXDEV , EXDEV)	1070
		1071	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1072	/* the first block can be undef if missing */
569	const_iv (ENOSYS , ENOSYS)	1073	const_iv (ENOSYS)
		1074	const_iv (EXDEV)
		1075	const_iv (EBADR)
		1076
		1077	/* for lseek */
		1078	const_iv (SEEK_DATA)
		1079	const_iv (SEEK_HOLE)
		1080
		1081	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1082	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1083	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1084	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1085	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1086	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1087
		1088	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1089	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1090	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1091	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1092	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1093
		1094	/* the second block will be 0 when missing */
		1095	const_iv (O_ACCMODE)
		1096
570	const_iv (O_RDONLY, O_RDONLY)	1097	const_iv (O_RDONLY)
571	const_iv (O_WRONLY, O_WRONLY)	1098	const_iv (O_WRONLY)
		1099	const_iv (O_RDWR)
572	const_iv (O_CREAT , O_CREAT)	1100	const_iv (O_CREAT)
573	const_iv (O_TRUNC , O_TRUNC)	1101	const_iv (O_TRUNC)
574	#ifndef _WIN32	1102	const_iv (O_EXCL)
		1103	const_iv (O_APPEND)
		1104
		1105	const_iv (O_ASYNC)
		1106	const_iv (O_DIRECT)
		1107	const_iv (O_NOATIME)
		1108
		1109	const_iv (O_CLOEXEC)
		1110	const_iv (O_NOCTTY)
		1111	const_iv (O_NOFOLLOW)
		1112	const_iv (O_NONBLOCK)
		1113	const_iv (O_EXEC)
		1114	const_iv (O_SEARCH)
		1115	const_iv (O_DIRECTORY)
		1116	const_iv (O_DSYNC)
		1117	const_iv (O_RSYNC)
		1118	const_iv (O_SYNC)
		1119	const_iv (O_PATH)
		1120	const_iv (O_TMPFILE)
		1121	const_iv (O_TTY_INIT)
		1122
575	const_iv (S_IFIFO , S_IFIFO)	1123	const_iv (S_IFIFO)
576	#endif	1124	const_iv (S_IFCHR)
		1125	const_iv (S_IFBLK)
		1126	const_iv (S_IFLNK)
		1127	const_iv (S_IFREG)
		1128	const_iv (S_IFDIR)
		1129	const_iv (S_IFWHT)
		1130	const_iv (S_IFSOCK)
		1131	const_iv (S_IFMT)
		1132
		1133	const_iv (ST_RDONLY)
		1134	const_iv (ST_NOSUID)
		1135	const_iv (ST_NODEV)
		1136	const_iv (ST_NOEXEC)
		1137	const_iv (ST_SYNCHRONOUS)
		1138	const_iv (ST_MANDLOCK)
		1139	const_iv (ST_WRITE)
		1140	const_iv (ST_APPEND)
		1141	const_iv (ST_IMMUTABLE)
		1142	const_iv (ST_NOATIME)
		1143	const_iv (ST_NODIRATIME)
		1144	const_iv (ST_RELATIME)
		1145
		1146	const_iv (PROT_NONE)
		1147	const_iv (PROT_EXEC)
		1148	const_iv (PROT_READ)
		1149	const_iv (PROT_WRITE)
		1150
		1151	const_iv (MAP_PRIVATE)
		1152	const_iv (MAP_SHARED)
		1153	const_iv (MAP_FIXED)
		1154	const_iv (MAP_ANONYMOUS)
		1155
		1156	/* linuxish */
		1157	const_iv (MAP_LOCKED)
		1158	const_iv (MAP_NORESERVE)
		1159	const_iv (MAP_POPULATE)
		1160	const_iv (MAP_NONBLOCK)
		1161	const_iv (MAP_GROWSDOWN)
		1162	const_iv (MAP_32BIT)
		1163	const_iv (MAP_HUGETLB)
		1164	const_iv (MAP_STACK)
		1165
		1166	const_iv (MREMAP_MAYMOVE)
		1167	const_iv (MREMAP_FIXED)
		1168
		1169	const_iv (F_DUPFD_CLOEXEC)
		1170
		1171	const_iv (MSG_CMSG_CLOEXEC)
		1172	const_iv (SOCK_CLOEXEC)
		1173
		1174	const_iv (F_OFD_GETLK)
		1175	const_iv (F_OFD_SETLK)
		1176	const_iv (F_OFD_GETLKW)
		1177
		1178	const_iv (FIFREEZE)
		1179	const_iv (FITHAW)
		1180	const_iv (FITRIM)
		1181	const_iv (FICLONE)
		1182	const_iv (FICLONERANGE)
		1183	const_iv (FIDEDUPERANGE)
		1184
		1185	const_iv (FS_IOC_GETFLAGS)
		1186	const_iv (FS_IOC_SETFLAGS)
		1187	const_iv (FS_IOC_GETVERSION)
		1188	const_iv (FS_IOC_SETVERSION)
		1189	const_iv (FS_IOC_FIEMAP)
		1190	const_iv (FS_IOC_FSGETXATTR)
		1191	const_iv (FS_IOC_FSSETXATTR)
		1192	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1193	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1195
		1196	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1197
		1198	const_iv (FS_SECRM_FL)
		1199	const_iv (FS_UNRM_FL)
		1200	const_iv (FS_COMPR_FL)
		1201	const_iv (FS_SYNC_FL)
		1202	const_iv (FS_IMMUTABLE_FL)
		1203	const_iv (FS_APPEND_FL)
		1204	const_iv (FS_NODUMP_FL)
		1205	const_iv (FS_NOATIME_FL)
		1206	const_iv (FS_DIRTY_FL)
		1207	const_iv (FS_COMPRBLK_FL)
		1208	const_iv (FS_NOCOMP_FL)
		1209	const_iv (FS_ENCRYPT_FL)
		1210	const_iv (FS_BTREE_FL)
		1211	const_iv (FS_INDEX_FL)
		1212	const_iv (FS_JOURNAL_DATA_FL)
		1213	const_iv (FS_NOTAIL_FL)
		1214	const_iv (FS_DIRSYNC_FL)
		1215	const_iv (FS_TOPDIR_FL)
		1216	const_iv (FS_FL_USER_MODIFIABLE)
		1217
		1218	const_iv (FS_XFLAG_REALTIME)
		1219	const_iv (FS_XFLAG_PREALLOC)
		1220	const_iv (FS_XFLAG_IMMUTABLE)
		1221	const_iv (FS_XFLAG_APPEND)
		1222	const_iv (FS_XFLAG_SYNC)
		1223	const_iv (FS_XFLAG_NOATIME)
		1224	const_iv (FS_XFLAG_NODUMP)
		1225	const_iv (FS_XFLAG_RTINHERIT)
		1226	const_iv (FS_XFLAG_PROJINHERIT)
		1227	const_iv (FS_XFLAG_NOSYMLINKS)
		1228	const_iv (FS_XFLAG_EXTSIZE)
		1229	const_iv (FS_XFLAG_EXTSZINHERIT)
		1230	const_iv (FS_XFLAG_NODEFRAG)
		1231	const_iv (FS_XFLAG_FILESTREAM)
		1232	const_iv (FS_XFLAG_DAX)
		1233	const_iv (FS_XFLAG_HASATTR)
		1234
		1235	const_iv (FIEMAP_FLAG_SYNC)
		1236	const_iv (FIEMAP_FLAG_XATTR)
		1237	const_iv (FIEMAP_FLAGS_COMPAT)
		1238	const_iv (FIEMAP_EXTENT_LAST)
		1239	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1240	const_iv (FIEMAP_EXTENT_DELALLOC)
		1241	const_iv (FIEMAP_EXTENT_ENCODED)
		1242	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1243	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1244	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1245	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1246	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1247	const_iv (FIEMAP_EXTENT_MERGED)
		1248	const_iv (FIEMAP_EXTENT_SHARED)
		1249
		1250	const_iv (SPLICE_F_MOVE)
		1251	const_iv (SPLICE_F_NONBLOCK)
		1252	const_iv (SPLICE_F_MORE)
		1253	const_iv (SPLICE_F_GIFT)
		1254
		1255	const_iv (EFD_CLOEXEC)
		1256	const_iv (EFD_NONBLOCK)
		1257	const_iv (EFD_SEMAPHORE)
		1258
		1259	const_iv (CLOCK_REALTIME)
		1260	const_iv (CLOCK_MONOTONIC)
		1261	const_iv (CLOCK_BOOTTIME)
		1262	const_iv (CLOCK_REALTIME_ALARM)
		1263	const_iv (CLOCK_BOOTTIME_ALARM)
		1264
		1265	const_iv (TFD_NONBLOCK)
		1266	const_iv (TFD_CLOEXEC)
		1267
		1268	const_iv (TFD_TIMER_ABSTIME)
		1269	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1270
		1271	/* these are libeio constants, and are independent of gendef0 */
		1272	const_eio (SEEK_SET)
		1273	const_eio (SEEK_CUR)
		1274	const_eio (SEEK_END)
		1275
		1276	const_eio (MCL_FUTURE)
		1277	const_eio (MCL_CURRENT)
		1278	const_eio (MCL_ONFAULT)
		1279
		1280	const_eio (MS_ASYNC)
		1281	const_eio (MS_INVALIDATE)
		1282	const_eio (MS_SYNC)
		1283
		1284	const_eio (MT_MODIFY)
		1285
577	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1286	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
578	const_eio (SYNC_FILE_RANGE_WRITE)	1287	const_eio (SYNC_FILE_RANGE_WRITE)
579	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1288	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1289
		1290	const_eio (FALLOC_FL_KEEP_SIZE)
		1291	const_eio (FALLOC_FL_PUNCH_HOLE)
		1292	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1293	const_eio (FALLOC_FL_ZERO_RANGE)
		1294	const_eio (FALLOC_FL_INSERT_RANGE)
		1295	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1296
		1297	const_eio (RENAME_NOREPLACE)
		1298	const_eio (RENAME_EXCHANGE)
		1299	const_eio (RENAME_WHITEOUT)
580		1300
581	const_eio (READDIR_DENTS)	1301	const_eio (READDIR_DENTS)
582	const_eio (READDIR_DIRS_FIRST)	1302	const_eio (READDIR_DIRS_FIRST)
583	const_eio (READDIR_STAT_ORDER)	1303	const_eio (READDIR_STAT_ORDER)
584	const_eio (READDIR_FOUND_UNKNOWN)	1304	const_eio (READDIR_FOUND_UNKNOWN)
…		…
592	const_eio (DT_LNK)	1312	const_eio (DT_LNK)
593	const_eio (DT_SOCK)	1313	const_eio (DT_SOCK)
594	const_eio (DT_WHT)	1314	const_eio (DT_WHT)
595	};	1315	};
596		1316
		1317	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1318	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1319	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1320	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
		1321
597	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1322	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
598	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1323	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
599		1324
600	create_respipe ();	1325	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
601		1326
602	if (eio_init (want_poll, done_poll) < 0)	1327	/* allocate dummy pipe fd for aio_close */
603	croak ("IO::AIO: unable to initialise eio library");	1328	{
		1329	int pipefd [2];
604		1330
605	/* atfork child called in fifo order, so before eio's handler */	1331	if (
606	X_THREAD_ATFORK (0, 0, atfork_child);	1332	#ifdef _WIN32
607	}	1333	_pipe (pipefd, 1, _O_BINARY) < 0
		1334	#else
		1335	pipe (pipefd) < 0
		1336	\|\| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1337	#endif
		1338	\|\| close (pipefd [1]) < 0
		1339	)
		1340	croak ("IO::AIO: unable to create dummy pipe for aio_close");
608		1341
		1342	close_fd = pipefd [0];
		1343	}
		1344
		1345	reinit ();
		1346	}
		1347
609	void	1348	void
		1349	reinit ()
		1350	PROTOTYPE:
		1351
		1352	void
610	max_poll_reqs (int nreqs)	1353	max_poll_reqs (unsigned int nreqs)
611	PROTOTYPE: $	1354	PROTOTYPE: $
612	CODE:	1355	CODE:
613	eio_set_max_poll_reqs (nreqs);	1356	eio_set_max_poll_reqs (nreqs);
614		1357
615	void	1358	void
…		…
617	PROTOTYPE: $	1360	PROTOTYPE: $
618	CODE:	1361	CODE:
619	eio_set_max_poll_time (nseconds);	1362	eio_set_max_poll_time (nseconds);
620		1363
621	void	1364	void
622	min_parallel (int nthreads)	1365	min_parallel (unsigned int nthreads)
623	PROTOTYPE: $	1366	PROTOTYPE: $
624	CODE:	1367	CODE:
625	eio_set_min_parallel (nthreads);	1368	eio_set_min_parallel (nthreads);
626		1369
627	void	1370	void
628	max_parallel (int nthreads)	1371	max_parallel (unsigned int nthreads)
629	PROTOTYPE: $	1372	PROTOTYPE: $
630	CODE:	1373	CODE:
631	eio_set_max_parallel (nthreads);	1374	eio_set_max_parallel (nthreads);
632		1375
633	void	1376	void
634	max_idle (int nthreads)	1377	max_idle (unsigned int nthreads)
635	PROTOTYPE: $	1378	PROTOTYPE: $
636	CODE:	1379	CODE:
637	eio_set_max_idle (nthreads);	1380	eio_set_max_idle (nthreads);
638		1381
639	void	1382	void
		1383	idle_timeout (unsigned int seconds)
		1384	PROTOTYPE: $
		1385	CODE:
		1386	eio_set_idle_timeout (seconds);
		1387
		1388	void
640	max_outstanding (int maxreqs)	1389	max_outstanding (unsigned int maxreqs)
641	PROTOTYPE: $	1390	PROTOTYPE: $
642	CODE:	1391	CODE:
643	max_outstanding = maxreqs;	1392	max_outstanding = maxreqs;
644		1393
645	void	1394	void
646	aio_open (SV8 pathname, int flags, int mode, SV callback=&PL_sv_undef)	1395	aio_wd (SV8 pathname, SV callback = &PL_sv_undef)
647	PROTOTYPE: $$$;$
648	PPCODE:	1396	PPCODE:
649	{	1397	{
650	dREQ;	1398	dREQ;
651		1399
		1400	req->type = EIO_WD_OPEN;
		1401	req_set_path1 (req, pathname);
		1402
		1403	REQ_SEND;
		1404	}
		1405
		1406	void
		1407	aio_open (SV8 pathname, int flags, int mode, SV callback = &PL_sv_undef)
		1408	PPCODE:
		1409	{
		1410	dREQ;
		1411
652	req->type = EIO_OPEN;	1412	req->type = EIO_OPEN;
653	req->sv1 = newSVsv (pathname);	1413	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->int1 = flags;	1414	req->int1 = flags;
656	req->int2 = mode;	1415	req->int2 = mode;
657		1416
658	REQ_SEND;	1417	REQ_SEND;
659	}	1418	}
660		1419
661	void	1420	void
662	aio_fsync (SV fh, SV callback=&PL_sv_undef)	1421	aio_fsync (SV fh, SV callback = &PL_sv_undef)
663	PROTOTYPE: $;$
664	ALIAS:	1422	ALIAS:
665	aio_fsync = EIO_FSYNC	1423	aio_fsync = EIO_FSYNC
666	aio_fdatasync = EIO_FDATASYNC	1424	aio_fdatasync = EIO_FDATASYNC
		1425	aio_syncfs = EIO_SYNCFS
667	PPCODE:	1426	PPCODE:
668	{	1427	{
669	int fd = extract_fd (fh, 0);	1428	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1429	dREQ;
671		1430
672	req->type = ix;	1431	req->type = ix;
673	req->sv1 = newSVsv (fh);	1432	req->sv1 = newSVsv (fh);
674	req->int1 = fd;	1433	req->int1 = fd;
675		1434
676	REQ_SEND (req);	1435	REQ_SEND;
677	}	1436	}
678		1437
679	void	1438	void
680	aio_sync_file_range (SV fh, SV offset, SV nbytes, IV flags, SV callback=&PL_sv_undef)	1439	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback = &PL_sv_undef)
681	PROTOTYPE: $$$$;$
682	PPCODE:	1440	PPCODE:
683	{	1441	{
684	int fd = extract_fd (fh, 0);	1442	int fd = s_fileno_croak (fh, 0);
685	dREQ;	1443	dREQ;
686		1444
687	req->type = EIO_SYNC_FILE_RANGE;	1445	req->type = EIO_SYNC_FILE_RANGE;
688	req->sv1 = newSVsv (fh);	1446	req->sv1 = newSVsv (fh);
689	req->int1 = fd;	1447	req->int1 = fd;
690	req->offs = SvVAL64 (offset);	1448	req->offs = offset;
691	req->size = SvVAL64 (nbytes);	1449	req->size = nbytes;
692	req->int2 = flags;	1450	req->int2 = flags;
693		1451
694	REQ_SEND (req);	1452	REQ_SEND;
695	}	1453	}
696		1454
697	void	1455	void
698	aio_close (SV fh, SV callback=&PL_sv_undef)	1456	aio_allocate (SV fh, int mode, off_t offset, size_t len, SV callback = &PL_sv_undef)
699	PROTOTYPE: $;$
700	PPCODE:	1457	PPCODE:
701	{	1458	{
702	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1459	int fd = s_fileno_croak (fh, 0);
703	int fd = extract_fd (fh, 0);
704	dREQ;	1460	dREQ;
705		1461
706	if (close_pipe < 0)	1462	req->type = EIO_FALLOCATE;
707	{	1463	req->sv1 = newSVsv (fh);
708	int pipefd [2];	1464	req->int1 = fd;
		1465	req->int2 = mode;
		1466	req->offs = offset;
		1467	req->size = len;
709		1468
710	if (pipe (pipefd) < 0	1469	REQ_SEND;
711	\|\| close (pipefd [1]) < 0	1470	}
712	\|\| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
713	abort (); /D/
714		1471
715	close_pipe = pipefd [0];	1472	void
716	}	1473	aio_close (SV fh, SV callback = &PL_sv_undef)
		1474	PPCODE:
		1475	{
		1476	int fd = s_fileno_croak (fh, 0);
		1477	dREQ;
717		1478
718	req->type = EIO_DUP2;	1479	req->type = EIO_DUP2;
719	req->int1 = close_pipe;	1480	req->int1 = close_fd;
720	req->sv2 = newSVsv (fh);	1481	req->sv2 = newSVsv (fh);
721	req->int2 = fd;	1482	req->int2 = fd;
722		1483
723	REQ_SEND (req);	1484	REQ_SEND;
724	}	1485	}
725		1486
726	void	1487	void
		1488	aio_seek (SV fh, SV offset, int whence, SV *callback = &PL_sv_undef)
		1489	PPCODE:
		1490	{
		1491	int fd = s_fileno_croak (fh, 0);
		1492	dREQ;
		1493
		1494	req->type = EIO_SEEK;
		1495	req->sv1 = newSVsv (fh);
		1496	req->int1 = fd;
		1497	req->offs = SvVAL64 (offset);
		1498	req->int2 = whence;
		1499
		1500	REQ_SEND;
		1501	}
		1502
		1503	void
727	aio_read (SV fh, SV offset, SV length, SV8 data, IV dataoffset, SV *callback=&PL_sv_undef)	1504	aio_read (SV fh, SV offset, SV length, SV8 data, IV dataoffset, SV *callback = &PL_sv_undef)
728	ALIAS:	1505	ALIAS:
729	aio_read = EIO_READ	1506	aio_read = EIO_READ
730	aio_write = EIO_WRITE	1507	aio_write = EIO_WRITE
731	PROTOTYPE: $$$$$;$
732	PPCODE:	1508	PPCODE:
733	{	1509	{
734	STRLEN svlen;	1510	STRLEN svlen;
735	int fd = extract_fd (fh, ix == EIO_WRITE);	1511	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736	char *svptr = SvPVbyte (data, svlen);	1512	char *svptr = SvPVbyte (data, svlen);
737	UV len = SvUV (length);	1513	UV len = SvUV (length);
738		1514
739	if (dataoffset < 0)	1515	if (dataoffset < 0)
740	dataoffset += svlen;	1516	dataoffset += svlen;
…		…
749	len = svlen - dataoffset;	1525	len = svlen - dataoffset;
750	}	1526	}
751	else	1527	else
752	{	1528	{
753	/* read: check type and grow scalar as necessary */	1529	/* read: check type and grow scalar as necessary */
754	SvUPGRADE (data, SVt_PV);	1530	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
755	svptr = SvGROW (data, len + dataoffset + 1);	1531	svptr = sv_grow (data, len + dataoffset + 1);
		1532	else if (SvCUR (data) < len + dataoffset)
		1533	croak ("length + dataoffset outside of scalar, and cannot grow");
756	}	1534	}
757		1535
758	{	1536	{
759	dREQ;	1537	dREQ;
760		1538
…		…
776	REQ_SEND;	1554	REQ_SEND;
777	}	1555	}
778	}	1556	}
779		1557
780	void	1558	void
781	aio_readlink (SV8 path, SV callback=&PL_sv_undef)	1559	aio_ioctl (SV fh, unsigned long request, SV8 arg, SV *callback = &PL_sv_undef)
782	PROTOTYPE: $$;$	1560	ALIAS:
		1561	aio_ioctl = EIO_IOCTL
		1562	aio_fcntl = EIO_FCNTL
783	PPCODE:	1563	PPCODE:
784	{	1564	{
785	SV *data;	1565	int fd = s_fileno_croak (fh, 0);
		1566	char *svptr;
		1567
		1568	if (SvPOK (arg) \|\| !SvNIOK (arg))
		1569	{
		1570	STRLEN svlen;
		1571	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1572	#ifdef IOCPARM_LEN
		1573	STRLEN need = IOCPARM_LEN (request);
		1574	#else
		1575	STRLEN need = 256;
		1576	#endif
		1577
		1578	if (svlen < need)
		1579	svptr = SvGROW (arg, need);
		1580	}
		1581	else
		1582	svptr = (char *)SvIV (arg);
		1583
		1584	{
		1585	dREQ;
		1586
		1587	req->type = ix;
		1588	req->sv1 = newSVsv (fh);
		1589	req->int1 = fd;
		1590	req->int2 = (long)request;
		1591	req->sv2 = SvREFCNT_inc (arg);
		1592	req->ptr2 = svptr;
		1593
		1594	REQ_SEND;
		1595	}
		1596	}
		1597
		1598	void
		1599	aio_readlink (SV8 pathname, SV callback = &PL_sv_undef)
		1600	ALIAS:
		1601	aio_readlink = EIO_READLINK
		1602	aio_realpath = EIO_REALPATH
		1603	PPCODE:
		1604	{
786	dREQ;	1605	dREQ;
787		1606
788	req->type = EIO_READLINK;	1607	req->type = ix;
789	req->sv1 = newSVsv (path);	1608	req_set_path1 (req, pathname);
790	req->ptr1 = SvPVbyte_nolen (req->sv1);
791		1609
792	REQ_SEND;	1610	REQ_SEND;
793	}	1611	}
794		1612
795	void	1613	void
796	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	1614	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
797	PROTOTYPE: $$$$;$
798	PPCODE:	1615	PPCODE:
799	{	1616	{
800	int ifd = extract_fd (in_fh , 0);	1617	int ifd = s_fileno_croak (in_fh , 0);
801	int ofd = extract_fd (out_fh, 0);	1618	int ofd = s_fileno_croak (out_fh, 1);
802	dREQ;	1619	dREQ;
803		1620
804	req->type = EIO_SENDFILE;	1621	req->type = EIO_SENDFILE;
805	req->sv1 = newSVsv (out_fh);	1622	req->sv1 = newSVsv (out_fh);
806	req->int1 = ofd;	1623	req->int1 = ofd;
807	req->sv2 = newSVsv (in_fh);	1624	req->sv2 = newSVsv (in_fh);
808	req->int2 = ifd;	1625	req->int2 = ifd;
809	req->offs = SvVAL64 (in_offset);	1626	req->offs = in_offset;
810	req->size = length;	1627	req->size = length;
811		1628
812	REQ_SEND;	1629	REQ_SEND;
813	}	1630	}
814		1631
815	void	1632	void
816	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1633	aio_readahead (SV fh, off_t offset, size_t length, SV callback = &PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1634	PPCODE:
819	{	1635	{
820	int fd = extract_fd (fh, 0);	1636	int fd = s_fileno_croak (fh, 0);
821	dREQ;	1637	dREQ;
822		1638
823	req->type = EIO_READAHEAD;	1639	req->type = EIO_READAHEAD;
824	req->sv1 = newSVsv (fh);	1640	req->sv1 = newSVsv (fh);
825	req->int1 = fd;	1641	req->int1 = fd;
826	req->offs = SvVAL64 (offset);	1642	req->offs = offset;
827	req->size = length;	1643	req->size = length;
828		1644
829	REQ_SEND;	1645	REQ_SEND;
830	}	1646	}
831		1647
832	void	1648	void
833	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1649	aio_stat (SV8 fh_or_path, SV callback = &PL_sv_undef)
834	ALIAS:	1650	ALIAS:
835	aio_stat = EIO_STAT	1651	aio_stat = EIO_STAT
836	aio_lstat = EIO_LSTAT	1652	aio_lstat = EIO_LSTAT
		1653	aio_statvfs = EIO_STATVFS
837	PPCODE:	1654	PPCODE:
838	{	1655	{
839	dREQ;	1656	dREQ;
840		1657
841	req->sv1 = newSVsv (fh_or_path);	1658	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
842
843	if (SvPOK (req->sv1))
844	{
845	req->type = ix;
846	req->ptr1 = SvPVbyte_nolen (req->sv1);
847	}
848	else
849	{
850	req->type = EIO_FSTAT;
851	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852	}
853		1659
854	REQ_SEND;	1660	REQ_SEND;
855	}	1661	}
856		1662
857	void	1663	void
		1664	st_xtime ()
		1665	ALIAS:
		1666	st_atime = 0x01
		1667	st_mtime = 0x02
		1668	st_ctime = 0x04
		1669	st_btime = 0x08
		1670	st_xtime = 0x0f
		1671	PPCODE:
		1672	EXTEND (SP, 4);
		1673	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1674	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1675	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1676	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1677
		1678	void
		1679	st_xtimensec ()
		1680	ALIAS:
		1681	st_atimensec = 0x01
		1682	st_mtimensec = 0x02
		1683	st_ctimensec = 0x04
		1684	st_btimensec = 0x08
		1685	st_xtimensec = 0x0f
		1686	st_btimesec = 0x10
		1687	st_gen = 0x20
		1688	PPCODE:
		1689	EXTEND (SP, 4);
		1690	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1691	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1692	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1693	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1694	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1695	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1696
		1697	UV
		1698	major (UV dev)
		1699	ALIAS:
		1700	minor = 1
		1701	CODE:
		1702	RETVAL = ix ? minor (dev) : major (dev);
		1703	OUTPUT:
		1704	RETVAL
		1705
		1706	UV
		1707	makedev (UV maj, UV min)
		1708	CODE:
		1709	RETVAL = makedev (maj, min);
		1710	OUTPUT:
		1711	RETVAL
		1712
		1713	void
858	aio_utime (SV8 fh_or_path, SV atime, SV mtime, SV callback=&PL_sv_undef)	1714	aio_utime (SV8 fh_or_path, SV atime, SV mtime, SV callback = &PL_sv_undef)
859	PPCODE:	1715	PPCODE:
860	{	1716	{
861	dREQ;	1717	dREQ;
862		1718
863	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1719	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
864	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1720	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
865	req->sv1 = newSVsv (fh_or_path);	1721	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
866
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_UTIME;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FUTIME;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1722
878	REQ_SEND;	1723	REQ_SEND;
879	}	1724	}
880		1725
881	void	1726	void
882	aio_truncate (SV8 fh_or_path, SV offset, SV *callback=&PL_sv_undef)	1727	aio_truncate (SV8 fh_or_path, SV offset, SV *callback = &PL_sv_undef)
883	PPCODE:	1728	PPCODE:
884	{	1729	{
885	dREQ;	1730	dREQ;
886		1731
887	req->sv1 = newSVsv (fh_or_path);
888	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1732	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
889		1733	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
890	if (SvPOK (req->sv1))
891	{
892	req->type = EIO_TRUNCATE;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FTRUNCATE;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1734
901	REQ_SEND;	1735	REQ_SEND;
902	}	1736	}
903		1737
904	void	1738	void
905	aio_chmod (SV8 fh_or_path, int mode, SV callback=&PL_sv_undef)	1739	aio_chmod (SV8 fh_or_path, int mode, SV callback = &PL_sv_undef)
906	ALIAS:
907	aio_chmod = EIO_CHMOD
908	aio_mkdir = EIO_MKDIR
909	PPCODE:	1740	PPCODE:
910	{	1741	{
911	dREQ;	1742	dREQ;
912		1743
913	req->int2 = mode;	1744	req->int2 = mode;
914	req->sv1 = newSVsv (fh_or_path);	1745	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
915
916	if (SvPOK (req->sv1))
917	{
918	req->type = ix;
919	req->ptr1 = SvPVbyte_nolen (req->sv1);
920	}
921	else
922	{
923	req->type = EIO_FCHMOD;
924	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
925	}
926		1746
927	REQ_SEND;	1747	REQ_SEND;
928	}	1748	}
929		1749
930	void	1750	void
931	aio_chown (SV8 fh_or_path, SV uid, SV gid, SV callback=&PL_sv_undef)	1751	aio_chown (SV8 fh_or_path, SV uid, SV gid, SV callback = &PL_sv_undef)
932	PPCODE:	1752	PPCODE:
933	{	1753	{
934	dREQ;	1754	dREQ;
935		1755
936	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1756	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
937	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1757	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
938	req->sv1 = newSVsv (fh_or_path);	1758	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
939
940	if (SvPOK (req->sv1))
941	{
942	req->type = EIO_CHOWN;
943	req->ptr1 = SvPVbyte_nolen (req->sv1);
944	}
945	else
946	{
947	req->type = EIO_FCHOWN;
948	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
949	}
950		1759
951	REQ_SEND;	1760	REQ_SEND;
952	}	1761	}
953		1762
954	void	1763	void
955	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)	1764	aio_readdirx (SV8 pathname, IV flags, SV callback = &PL_sv_undef)
956	PPCODE:	1765	PPCODE:
957	{	1766	{
958	dREQ;	1767	dREQ;
959		1768
960	req->type = EIO_READDIR;	1769	req->type = EIO_READDIR;
961	req->sv1 = newSVsv (pathname);
962	req->ptr1 = SvPVbyte_nolen (req->sv1);
963	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;	1770	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
964		1771
965	if (flags & EIO_READDIR_DENTS)	1772	if (flags & EIO_READDIR_DENTS)
966	req->int1 \|= EIO_READDIR_CUSTOM2;	1773	req->int1 \|= EIO_READDIR_CUSTOM2;
967		1774
		1775	req_set_path1 (req, pathname);
		1776
968	REQ_SEND;	1777	REQ_SEND;
969	}	1778	}
970		1779
971	void	1780	void
		1781	aio_mkdir (SV8 pathname, int mode, SV callback = &PL_sv_undef)
		1782	PPCODE:
		1783	{
		1784	dREQ;
		1785
		1786	req->type = EIO_MKDIR;
		1787	req->int2 = mode;
		1788	req_set_path1 (req, pathname);
		1789
		1790	REQ_SEND;
		1791	}
		1792
		1793	void
972	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1794	aio_unlink (SV8 pathname, SV callback = &PL_sv_undef)
973	ALIAS:	1795	ALIAS:
974	aio_unlink = EIO_UNLINK	1796	aio_unlink = EIO_UNLINK
975	aio_rmdir = EIO_RMDIR	1797	aio_rmdir = EIO_RMDIR
976	aio_readdir = EIO_READDIR	1798	aio_readdir = EIO_READDIR
977	PPCODE:	1799	PPCODE:
978	{	1800	{
979	dREQ;	1801	dREQ;
980		1802
981	req->type = ix;	1803	req->type = ix;
982	req->sv1 = newSVsv (pathname);	1804	req_set_path1 (req, pathname);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);
984		1805
985	REQ_SEND;	1806	REQ_SEND;
986	}	1807	}
987		1808
988	void	1809	void
989	aio_link (SV8 oldpath, SV8 newpath, SV *callback=&PL_sv_undef)	1810	aio_link (SV8 oldpath, SV8 newpath, SV *callback = &PL_sv_undef)
990	ALIAS:	1811	ALIAS:
991	aio_link = EIO_LINK	1812	aio_link = EIO_LINK
992	aio_symlink = EIO_SYMLINK	1813	aio_symlink = EIO_SYMLINK
993	aio_rename = EIO_RENAME	1814	aio_rename = EIO_RENAME
994	PPCODE:	1815	PPCODE:
995	{	1816	{
		1817	eio_wd wd2 = 0;
996	dREQ;	1818	dREQ;
997		1819
998	req->type = ix;	1820	req->type = ix;
999	req->sv1 = newSVsv (oldpath);	1821	req_set_path1 (req, oldpath);
1000	req->ptr1 = SvPVbyte_nolen (req->sv1);	1822	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1001	req->sv2 = newSVsv (newpath);	1823	req->int3 = (long)wd2;
1002	req->ptr2 = SvPVbyte_nolen (req->sv2);
1003		1824
1004	REQ_SEND;	1825	REQ_SEND;
1005	}	1826	}
1006		1827
1007	void	1828	void
		1829	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1830	PPCODE:
		1831	{
		1832	eio_wd wd2 = 0;
		1833	dREQ;
		1834
		1835	req->type = EIO_RENAME;
		1836	req_set_path1 (req, oldpath);
		1837	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1838	req->int2 = flags;
		1839	req->int3 = (long)wd2;
		1840
		1841	REQ_SEND;
		1842	}
		1843
		1844	void
1008	aio_mknod (SV8 pathname, int mode, UV dev, SV callback=&PL_sv_undef)	1845	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1009	PPCODE:	1846	PPCODE:
1010	{	1847	{
1011	dREQ;	1848	dREQ;
1012		1849
1013	req->type = EIO_MKNOD;	1850	req->type = EIO_MKNOD;
1014	req->sv1 = newSVsv (pathname);
1015	req->ptr1 = SvPVbyte_nolen (req->sv1);
1016	req->int2 = (mode_t)mode;	1851	req->int2 = (mode_t)mode;
1017	req->offs = dev;	1852	req->offs = dev;
		1853	req_set_path1 (req, pathname);
1018		1854
1019	REQ_SEND;	1855	REQ_SEND;
1020	}	1856	}
1021		1857
1022	void	1858	void
		1859	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1860	ALIAS:
		1861	aio_mtouch = EIO_MTOUCH
		1862	aio_msync = EIO_MSYNC
		1863	PPCODE:
		1864	{
		1865	STRLEN svlen;
		1866	char *svptr = SvPVbyte (data, svlen);
		1867	UV len = SvUV (length);
		1868
		1869	if (flags < 0)
		1870	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1871
		1872	if (offset < 0)
		1873	offset += svlen;
		1874
		1875	if (offset < 0 \|\| offset > svlen)
		1876	croak ("offset outside of scalar");
		1877
		1878	if (!SvOK (length) \|\| len + offset > svlen)
		1879	len = svlen - offset;
		1880
		1881	{
		1882	dREQ;
		1883
		1884	req->type = ix;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = (char *)svptr + offset;
		1887	req->size = len;
		1888	req->int1 = flags;
		1889
		1890	REQ_SEND;
		1891	}
		1892	}
		1893
		1894	void
		1895	aio_mlock (SV8 data, IV offset = 0, SV length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1896	PPCODE:
		1897	{
		1898	STRLEN svlen;
		1899	char *svptr = SvPVbyte (data, svlen);
		1900	UV len = SvUV (length);
		1901
		1902	if (offset < 0)
		1903	offset += svlen;
		1904
		1905	if (offset < 0 \|\| offset > svlen)
		1906	croak ("offset outside of scalar");
		1907
		1908	if (!SvOK (length) \|\| len + offset > svlen)
		1909	len = svlen - offset;
		1910
		1911	{
		1912	dREQ;
		1913
		1914	req->type = EIO_MLOCK;
		1915	req->sv2 = SvREFCNT_inc (data);
		1916	req->ptr2 = (char *)svptr + offset;
		1917	req->size = len;
		1918
		1919	REQ_SEND;
		1920	}
		1921	}
		1922
		1923	void
		1924	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1925	PPCODE:
		1926	{
		1927	dREQ;
		1928
		1929	req->type = EIO_MLOCKALL;
		1930	req->int1 = flags;
		1931
		1932	REQ_SEND;
		1933	}
		1934
		1935	void
		1936	aio_fiemap (SV fh, off_t start, SV length, U32 flags, SV count, SV callback = &PL_sv_undef)
		1937	PPCODE:
		1938	{
		1939	int fd = s_fileno_croak (fh, 0);
		1940	dREQ;
		1941
		1942	req->type = EIO_CUSTOM;
		1943	req->sv1 = newSVsv (fh);
		1944	req->int1 = fd;
		1945
		1946	req->feed = fiemap;
		1947	#if HAVE_FIEMAP
		1948	/* keep our fingers crossed that the next two types are 64 bit */
		1949	req->offs = start;
		1950	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1951	req->int2 = flags;
		1952	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1953	#endif
		1954
		1955	REQ_SEND;
		1956	}
		1957
		1958	void
		1959	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1960	PPCODE:
		1961	{
		1962	char *svptr = 0;
		1963
		1964	sv_clear_foreign (data);
		1965
		1966	if (length) /* known length, directly read into scalar */
		1967	{
		1968	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1969	svptr = sv_grow (data, length + 1);
		1970	else if (SvCUR (data) < length)
		1971	croak ("length outside of scalar, and cannot grow");
		1972	else
		1973	svptr = SvPVbyte_nolen (data);
		1974	}
		1975
		1976	{
		1977	dREQ;
		1978
		1979	req->type = EIO_SLURP;
		1980	req_set_path1 (req, pathname);
		1981	req->offs = offset;
		1982	req->size = length;
		1983	req->sv2 = SvREFCNT_inc (data);
		1984	req->ptr2 = svptr;
		1985
		1986	if (!SvREADONLY (data))
		1987	{
		1988	SvREADONLY_on (data);
		1989	req->flags \|= FLAG_SV2_RO_OFF;
		1990	}
		1991
		1992	REQ_SEND;
		1993	}
		1994	}
		1995
		1996	void
1023	aio_busy (double delay, SV *callback=&PL_sv_undef)	1997	aio_busy (double delay, SV *callback = &PL_sv_undef)
1024	PPCODE:	1998	PPCODE:
1025	{	1999	{
1026	dREQ;	2000	dREQ;
1027		2001
1028	req->type = EIO_BUSY;	2002	req->type = EIO_BUSY;
…		…
1030		2004
1031	REQ_SEND;	2005	REQ_SEND;
1032	}	2006	}
1033		2007
1034	void	2008	void
1035	aio_group (SV *callback=&PL_sv_undef)	2009	aio_group (SV *callback = &PL_sv_undef)
1036	PROTOTYPE: ;$
1037	PPCODE:	2010	PPCODE:
1038	{	2011	{
1039	dREQ;	2012	dREQ;
1040		2013
1041	req->type = EIO_GROUP;	2014	req->type = EIO_GROUP;
1042		2015
		2016	PUTBACK;
1043	req_submit (req);	2017	req_submit (req);
		2018	SPAGAIN;
		2019
1044	XPUSHs (req_sv (req, AIO_GRP_KLASS));	2020	XPUSHs (req_sv (req, aio_grp_stash));
1045	}	2021	}
1046		2022
1047	void	2023	void
1048	aio_nop (SV *callback=&PL_sv_undef)	2024	aio_nop (SV *callback = &PL_sv_undef)
1049	ALIAS:	2025	ALIAS:
1050	aio_nop = EIO_NOP	2026	aio_nop = EIO_NOP
1051	aio_sync = EIO_SYNC	2027	aio_sync = EIO_SYNC
1052	PPCODE:	2028	PPCODE:
1053	{	2029	{
…		…
1057		2033
1058	REQ_SEND;	2034	REQ_SEND;
1059	}	2035	}
1060		2036
1061	int	2037	int
1062	aioreq_pri (int pri = 0)	2038	aioreq_pri (int pri = NO_INIT)
1063	PROTOTYPE: ;$
1064	CODE:	2039	CODE:
1065	RETVAL = next_pri;	2040	RETVAL = next_pri;
1066	if (items > 0)	2041	if (items > 0)
1067	{	2042	{
1068	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2043	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1080	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2055	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081	next_pri = nice;	2056	next_pri = nice;
1082		2057
1083	void	2058	void
1084	flush ()	2059	flush ()
1085	PROTOTYPE:
1086	CODE:	2060	CODE:
1087	while (eio_nreqs ())	2061	while (eio_nreqs ())
1088	{	2062	{
1089	poll_wait ();	2063	poll_wait ();
1090	poll_cb ();	2064	poll_cb ();
1091	}	2065	}
1092		2066
1093	int	2067	int
1094	poll()	2068	poll ()
1095	PROTOTYPE:
1096	CODE:	2069	CODE:
1097	poll_wait ();	2070	poll_wait ();
1098	RETVAL = poll_cb ();	2071	RETVAL = poll_cb ();
1099	OUTPUT:	2072	OUTPUT:
1100	RETVAL	2073	RETVAL
1101		2074
1102	int	2075	int
1103	poll_fileno()	2076	poll_fileno ()
1104	PROTOTYPE:
1105	CODE:	2077	CODE:
1106	RETVAL = respipe [0];	2078	RETVAL = s_epipe_fd (&respipe);
1107	OUTPUT:	2079	OUTPUT:
1108	RETVAL	2080	RETVAL
1109		2081
1110	int	2082	int
1111	poll_cb(...)	2083	poll_cb (...)
1112	PROTOTYPE:	2084	PROTOTYPE:
1113	CODE:	2085	CODE:
1114	RETVAL = poll_cb ();	2086	RETVAL = poll_cb ();
1115	OUTPUT:	2087	OUTPUT:
1116	RETVAL	2088	RETVAL
1117		2089
1118	void	2090	void
1119	poll_wait()	2091	poll_wait ()
1120	PROTOTYPE:
1121	CODE:	2092	CODE:
1122	poll_wait ();	2093	poll_wait ();
1123		2094
1124	int	2095	int
1125	nreqs()	2096	nreqs ()
1126	PROTOTYPE:
1127	CODE:	2097	CODE:
1128	RETVAL = eio_nreqs ();	2098	RETVAL = eio_nreqs ();
1129	OUTPUT:	2099	OUTPUT:
1130	RETVAL	2100	RETVAL
1131		2101
1132	int	2102	int
1133	nready()	2103	nready ()
1134	PROTOTYPE:
1135	CODE:	2104	CODE:
1136	RETVAL = eio_nready ();	2105	RETVAL = eio_nready ();
1137	OUTPUT:	2106	OUTPUT:
1138	RETVAL	2107	RETVAL
1139		2108
1140	int	2109	int
1141	npending()	2110	npending ()
1142	PROTOTYPE:
1143	CODE:	2111	CODE:
1144	RETVAL = eio_npending ();	2112	RETVAL = eio_npending ();
1145	OUTPUT:	2113	OUTPUT:
1146	RETVAL	2114	RETVAL
1147		2115
1148	int	2116	int
1149	nthreads()	2117	nthreads ()
1150	PROTOTYPE:
1151	CODE:	2118	CODE:
1152	RETVAL = eio_nthreads ();	2119	RETVAL = eio_nthreads ();
1153	OUTPUT:	2120	OUTPUT:
1154	RETVAL	2121	RETVAL
1155		2122
		2123	int
		2124	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2125	CODE:
		2126	RETVAL = posix_fadvise (fh, offset, length, advice);
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	IV
		2131	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2132	CODE:
		2133	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2134	OUTPUT:
		2135	RETVAL
		2136
		2137	void
		2138	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
		2139	PPCODE:
		2140	sv_clear_foreign (scalar);
		2141	{
		2142	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2143	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		2144	if (addr == (void *)-1)
		2145	XSRETURN_NO;
		2146
		2147	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2148
		2149	if (!(prot & PROT_WRITE))
		2150	SvREADONLY_on (scalar);
		2151
		2152	XSRETURN_YES;
		2153	}
		2154
		2155	void
		2156	munmap (SV *scalar)
		2157	CODE:
		2158	sv_clear_foreign (scalar);
		2159
		2160	SV *
		2161	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2162	CODE:
		2163	{
		2164	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2165	void *new;
		2166
		2167	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2168	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2169
		2170	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2171
		2172	RETVAL = &PL_sv_no;
		2173
		2174	if (new != (void *)-1)
		2175	{
		2176	RETVAL = new == (void *)mg->mg_ptr
		2177	? newSVpvn ("0 but true", 10)
		2178	: &PL_sv_yes;
		2179
		2180	mg->mg_ptr = (char *)new;
		2181	mg->mg_obj = (SV *)new_length;
		2182
		2183	SvPVX (scalar) = mg->mg_ptr;
		2184	SvCUR_set (scalar, new_length);
		2185	}
		2186	}
		2187	OUTPUT:
		2188	RETVAL
		2189
		2190	int
		2191	madvise (SV scalar, IV offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
		2192	ALIAS:
		2193	mprotect = 1
		2194	CODE:
		2195	{
		2196	STRLEN svlen;
		2197	void *addr = SvPVbyte (scalar, svlen);
		2198	STRLEN len = SvUV (length);
		2199
		2200	if (offset < 0)
		2201	offset += svlen;
		2202
		2203	if (offset < 0 \|\| offset > svlen)
		2204	croak ("offset outside of scalar");
		2205
		2206	if (!SvOK (length) \|\| len + offset > svlen)
		2207	len = svlen - offset;
		2208
		2209	addr = (void *)(((intptr_t)addr) + offset);
		2210	eio_page_align (&addr, &len);
		2211
		2212	switch (ix)
		2213	{
		2214	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2215	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2216	}
		2217	}
		2218	OUTPUT:
		2219	RETVAL
		2220
		2221	int
		2222	munlock (SV scalar, IV offset = 0, SV length = &PL_sv_undef)
		2223	CODE:
		2224	{
		2225	STRLEN svlen;
		2226	void *addr = SvPVbyte (scalar, svlen);
		2227	size_t len = SvUV (length);
		2228
		2229	if (offset < 0)
		2230	offset += svlen;
		2231
		2232	if (offset < 0 \|\| offset > svlen)
		2233	croak ("offset outside of scalar");
		2234
		2235	if (!SvOK (length) \|\| len + offset > svlen)
		2236	len = svlen - offset;
		2237
		2238	addr = (void *)(((intptr_t)addr) + offset);
		2239	eio_page_align (&addr, &len);
		2240	#if _POSIX_MEMLOCK_RANGE
		2241	RETVAL = munlock (addr, len);
		2242	#else
		2243	RETVAL = EIO_ENOSYS ();
		2244	#endif
		2245	}
		2246	OUTPUT:
		2247	RETVAL
		2248
		2249	int
		2250	munlockall ()
		2251	CODE:
		2252	#if _POSIX_MEMLOCK
		2253	munlockall ();
		2254	#else
		2255	RETVAL = EIO_ENOSYS ();
		2256	#endif
		2257	OUTPUT:
		2258	RETVAL
		2259
		2260	int
		2261	splice (aio_rfd rfh, SV off_in, aio_wfd wfh, SV off_out, size_t length, unsigned int flags)
		2262	CODE:
		2263	{
		2264	#if HAVE_LINUX_SPLICE
		2265	loff_t off_in_, off_out_;
		2266	RETVAL = splice (
		2267	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2268	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2269	length, flags
		2270	);
		2271	#else
		2272	RETVAL = EIO_ENOSYS ();
		2273	#endif
		2274	}
		2275	OUTPUT:
		2276	RETVAL
		2277
		2278	int
		2279	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2280	CODE:
		2281	#if HAVE_LINUX_SPLICE
		2282	RETVAL = tee (rfh, wfh, length, flags);
		2283	#else
		2284	RETVAL = EIO_ENOSYS ();
		2285	#endif
		2286	OUTPUT:
		2287	RETVAL
		2288
		2289	int
		2290	pipesize (aio_rfd rfh, int new_size = -1)
		2291	PROTOTYPE: $;$
		2292	CODE:
		2293	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2294	if (new_size >= 0)
		2295	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2296	else
		2297	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2298	#else
		2299	errno = ENOSYS;
		2300	RETVAL = -1;
		2301	#endif
		2302	OUTPUT:
		2303	RETVAL
		2304
		2305	void
		2306	pipe2 (int flags = 0)
		2307	PROTOTYPE: ;$
		2308	PPCODE:
		2309	{
		2310	int fd[2];
		2311	int res;
		2312
		2313	if (flags)
		2314	#if HAVE_PIPE2
		2315	res = pipe2 (fd, flags);
		2316	#else
		2317	res = (errno = ENOSYS, -1);
		2318	#endif
		2319	else
		2320	res = pipe (fd);
		2321
		2322	if (!res)
		2323	{
		2324	EXTEND (SP, 2);
		2325	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2326	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2327	}
		2328	}
		2329
		2330	void
		2331	eventfd (unsigned int initval = 0, int flags = 0)
		2332	PPCODE:
		2333	{
		2334	int fd;
		2335	#if HAVE_EVENTFD
		2336	fd = eventfd (initval, flags);
		2337	#else
		2338	fd = (errno = ENOSYS, -1);
		2339	#endif
		2340
		2341	XPUSHs (newmortalFH (fd, O_RDWR));
		2342	}
		2343
		2344	void
		2345	timerfd_create (int clockid, int flags = 0)
		2346	PPCODE:
		2347	{
		2348	int fd;
		2349	#if HAVE_TIMERFD
		2350	fd = timerfd_create (clockid, flags);
		2351	#else
		2352	fd = (errno = ENOSYS, -1);
		2353	#endif
		2354
		2355	XPUSHs (newmortalFH (fd, O_RDWR));
		2356	}
		2357
		2358	void
		2359	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2360	PPCODE:
		2361	{
		2362	int fd = s_fileno_croak (fh, 0);
		2363	#if HAVE_TIMERFD
		2364	int res;
		2365	struct itimerspec its, ots;
		2366
		2367	ts_set (&its.it_interval, interval);
		2368	ts_set (&its.it_value , value);
		2369	res = timerfd_settime (fd, flags, &its, &ots);
		2370
		2371	if (!res)
		2372	{
		2373	EXTEND (SP, 2);
		2374	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2375	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2376	}
		2377	#else
		2378	errno = ENOSYS;
		2379	#endif
		2380	}
		2381
		2382	void
		2383	timerfd_gettime (SV *fh)
		2384	PPCODE:
		2385	{
		2386	int fd = s_fileno_croak (fh, 0);
		2387	#if HAVE_TIMERFD
		2388	int res;
		2389	struct itimerspec ots;
		2390	res = timerfd_gettime (fd, &ots);
		2391
		2392	if (!res)
		2393	{
		2394	EXTEND (SP, 2);
		2395	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2396	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2397	}
		2398	#else
		2399	errno = ENOSYS;
		2400	#endif
		2401	}
		2402
		2403	UV
		2404	get_fdlimit ()
		2405	CODE:
		2406	#if HAVE_RLIMITS
		2407	struct rlimit rl;
		2408	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2409	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2410	#endif
		2411	XSRETURN_UNDEF;
		2412	OUTPUT:
		2413	RETVAL
		2414
		2415	void
		2416	min_fdlimit (UV limit = 0x7fffffffU)
		2417	CODE:
		2418	{
		2419	#if HAVE_RLIMITS
		2420	struct rlimit rl;
		2421	rlim_t orig_rlim_max;
		2422	UV bit;
		2423
		2424	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2425	goto fail;
		2426
		2427	if (rl.rlim_cur == RLIM_INFINITY)
		2428	XSRETURN_YES;
		2429
		2430	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2431
		2432	if (rl.rlim_cur < limit)
		2433	{
		2434	rl.rlim_cur = limit;
		2435
		2436	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2437	rl.rlim_max = rl.rlim_cur;
		2438	}
		2439
		2440	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2441	XSRETURN_YES;
		2442
		2443	if (errno == EPERM)
		2444	{
		2445	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2446	/* our limit overflows a system-wide limit */
		2447	/* try an adaptive algorithm, but do not lower the hardlimit */
		2448	rl.rlim_max = 0;
		2449	for (bit = 0x40000000U; bit; bit >>= 1)
		2450	{
		2451	rl.rlim_max \|= bit;
		2452	rl.rlim_cur = rl.rlim_max;
		2453
		2454	/* nevr decrease the hard limit */
		2455	if (rl.rlim_max < orig_rlim_max)
		2456	break;
		2457
		2458	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2459	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2460	}
		2461
		2462	/* now, raise the soft limit to the max permitted */
		2463	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2464	{
		2465	rl.rlim_cur = rl.rlim_max;
		2466	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2467	errno = EPERM;
		2468	}
		2469	}
		2470	#endif
		2471	fail:
		2472	XSRETURN_UNDEF;
		2473	}
		2474
1156	void _on_next_submit (SV *cb)	2475	void _on_next_submit (SV *cb)
1157	CODE:	2476	CODE:
1158	SvREFCNT_dec (on_next_submit);	2477	SvREFCNT_dec (on_next_submit);
1159	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2478	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160		2479
1161	PROTOTYPES: DISABLE	2480	PROTOTYPES: DISABLE
1162		2481
		2482	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2483
		2484	BOOT:
		2485	{
		2486	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2487	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2488	}
		2489
		2490	void
		2491	DESTROY (SV *self)
		2492	CODE:
		2493	{
		2494	aio_wd wd = SvAIO_WD (self);
		2495	#if HAVE_AT
		2496	{
		2497	SV *callback = &PL_sv_undef;
		2498	dREQ; /* clobbers next_pri :/ */
		2499	next_pri = req->pri; /* restore next_pri */
		2500	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2501	req->type = EIO_WD_CLOSE;
		2502	req->wd = wd;
		2503	REQ_SEND;
		2504	}
		2505	#else
		2506	eio_wd_close_sync (wd);
		2507	#endif
		2508	}
		2509
1163	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2510	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1164		2511
1165	void	2512	void
1166	cancel (aio_req_ornot req)	2513	cancel (aio_req_ornot req)
1167	CODE:	2514	CODE:
1168	eio_cancel (req);	2515	eio_cancel (req);
1169		2516
1170	void	2517	void
1171	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2518	cb (aio_req_ornot req, SV *callback = NO_INIT)
1172	PPCODE:	2519	PPCODE:
1173	{	2520	{
1174	if (GIMME_V != G_VOID)	2521	if (GIMME_V != G_VOID)
1175	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2522	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176		2523
…		…
1241	limit (aio_req grp, int limit)	2588	limit (aio_req grp, int limit)
1242	CODE:	2589	CODE:
1243	eio_grp_limit (grp, limit);	2590	eio_grp_limit (grp, limit);
1244		2591
1245	void	2592	void
1246	feed (aio_req grp, SV *callback=&PL_sv_undef)	2593	feed (aio_req grp, SV *callback = &PL_sv_undef)
1247	CODE:	2594	CODE:
1248	{	2595	{
1249	SvREFCNT_dec (grp->sv2);	2596	SvREFCNT_dec (grp->sv2);
1250	grp->sv2 = newSVsv (callback);	2597	grp->sv2 = newSVsv (callback);
1251	grp->feed = aio_grp_feed;	2598	grp->feed = aio_grp_feed;

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.143 by root, Sat Jun 6 19:44:17 2009 UTC vs. Revision 1.268 by root, Thu Nov 29 19:49:48 2018 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.143 by root, Sat Jun 6 19:44:17 2009 UTC vs.
Revision 1.268 by root, Thu Nov 29 19:49:48 2018 UTC