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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.136 by root, Sun Apr 19 13:15:55 2009 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 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	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
		29	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		30	# include <sys/mman.h>
		31	#endif
		32
		33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		39	# include <linux/fs.h>
		40	# ifdef FS_IOC_FIEMAP
		41	# include <linux/types.h>
		42	# include <linux/fiemap.h>
		43	# define HAVE_FIEMAP 1
		44	# endif
		45	#endif
		46
18	/* perl namespace pollution */	47	/* perl namespace pollution */
19	#undef VERSION	48	#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		49
70	/* perl stupidly overrides readdir and maybe others */	50	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	51	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	52	#undef readdir
73	#undef opendir	53	#undef opendir
74	#undef closedir	54	#undef closedir
75		55
		56	#ifdef _WIN32
		57
		58	// perl overrides all those nice libc functions
		59
		60	#undef malloc
		61	#undef free
		62	#undef open
		63	#undef read
		64	#undef write
		65	#undef send
		66	#undef recv
		67	#undef stat
		68	#undef lstat
		69	#undef fstat
		70	#undef truncate
		71	#undef ftruncate
		72	#undef open
		73	#undef link
		74	#undef close
		75	#undef unlink
		76	#undef mkdir
		77	#undef rmdir
		78	#undef rename
		79	#undef lseek
		80	#undef opendir
		81	#undef readdir
		82	#undef closedir
		83	#undef chmod
		84	#undef fchmod
		85	#undef dup
		86	#undef dup2
		87	#undef abort
		88	#undef pipe
		89
		90	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STATI64
77		92
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	93	#else
82	# define SvVAL64 SvNV	94
		95	#include <sys/time.h>
		96	#include <sys/select.h>
		97	#include <unistd.h>
		98	#include <utime.h>
		99	#include <signal.h>
		100
		101	#define EIO_STRUCT_STAT Stat_t
		102
83	#endif	103	#endif
84		104
85	/*****************************************************************************/	105	/*****************************************************************************/
86		106
87	#if __GNUC__ >= 3	107	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
95		115
96	/*****************************************************************************/	116	/*****************************************************************************/
97		117
98	static HV *stash;	118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
		148
99	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
		150	typedef int aio_rfd; /* read file desriptor */
		151	typedef int aio_wfd; /* write file descriptor */
100		152
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	153	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		154
104	#define EIO_REQ_MEMBERS \	155	#define EIO_REQ_MEMBERS \
105	SV *callback; \	156	SV *callback; \
106	SV *sv1, *sv2; \	157	SV *sv1, *sv2; \
		158	SV *sv3, *sv4; \
107	STRLEN stroffset; \	159	STRLEN stroffset; \
108	SV *self;	160	SV *self;
109		161
110	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
111		163
…		…
114	static int req_invoke (eio_req *req);	166	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	167	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	168	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	169	#define EIO_DESTROY(req) req_destroy (req)
118		170
		171	#include "libeio/eio.c"
		172
		173	#if !HAVE_POSIX_FADVISE
		174	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		175	#endif
		176
		177	#if !HAVE_POSIX_MADVISE
		178	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		179	#endif
		180
		181	#ifndef MAP_ANONYMOUS
		182	# ifdef MAP_ANON
		183	# define MAP_ANONYMOUS MAP_ANON
		184	# else
		185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		186	# endif
		187	#endif
		188
		189	#ifndef makedev
		190	# define makedev(maj,min) (((maj) << 8) | (min))
		191	#endif
		192	#ifndef major
		193	# define major(dev) ((dev) >> 8)
		194	#endif
		195	#ifndef minor
		196	# define minor(dev) ((dev) & 0xff)
		197	#endif
		198
		199	#if PAGESIZE <= 0
		200	# define PAGESIZE sysconf (_SC_PAGESIZE)
		201	#endif
		202
		203	/*****************************************************************************/
		204
		205	#if !_POSIX_MAPPED_FILES
		206	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		207	# define munmap(addr,length) EIO_ENOSYS ()
		208	#endif
		209
		210	#if !_POSIX_MEMORY_PROTECTION
		211	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		212	#endif
		213
		214	#if !MREMAP_MAYMOVE
		215	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		216	#endif
		217
		218	#define FOREIGN_MAGIC PERL_MAGIC_ext
		219
		220	static int ecb_cold
		221	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	int old_errno = errno;
		224	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		225	errno = old_errno;
		226
		227	mg->mg_obj = 0; /* just in case */
		228
		229	SvREADONLY_off (sv);
		230
		231	if (SvPVX (sv) != mg->mg_ptr)
		232	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		233
		234	SvCUR_set (sv, 0);
		235	SvPVX (sv) = 0;
		236	SvOK_off (sv);
		237
		238	return 0;
		239	}
		240
		241	static MGVTBL mmap_vtbl = {
		242	0, 0, 0, 0, mmap_free
		243	};
		244
		245	static int ecb_cold
		246	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		247	{
		248	free (mg->mg_ptr);
		249	mg->mg_obj = 0; /* just in case */
		250
		251	SvREADONLY_off (sv);
		252
		253	if (SvPVX (sv) != mg->mg_ptr)
		254	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		255
		256	SvCUR_set (sv, 0);
		257	SvPVX (sv) = 0;
		258	SvOK_off (sv);
		259
		260	return 0;
		261	}
		262
		263	static MGVTBL sysfree_vtbl = {
		264	0, 0, 0, 0, sysfree_free
		265	};
		266
		267	/*****************************************************************************/
		268
		269	/* helper: set scalar to foreign ptr with custom free */
		270	static void
		271	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		272	{
		273	sv_force_normal (sv);
		274
		275	/* we store the length in mg_obj, as namlen is I32 :/ */
		276	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		277	->mg_obj = (SV *)length;
		278
		279	SvUPGRADE (sv, SVt_PV); /* nop... */
		280
		281	if (SvLEN (sv))
		282	Safefree (SvPVX (sv));
		283
		284	SvPVX (sv) = (char *)addr;
		285	SvCUR_set (sv, length);
		286	SvLEN_set (sv, 0);
		287	SvPOK_only (sv);
		288	}
		289
		290	static void
		291	sv_clear_foreign (SV *sv)
		292	{
		293	/* todo: iterate over magic and only free ours, but of course */
		294	/* the perl5porters will call that (correct) behaviour buggy */
		295	sv_unmagic (sv, FOREIGN_MAGIC);
		296	}
		297
		298	/*****************************************************************************/
		299
		300	/* defines all sorts of constants to 0 unless they are already defined */
		301	/* also provides const_iv_ and const_niv_ macros for them */
		302	#include "def0.h"
		303
		304	/*****************************************************************************/
		305
		306	static void
		307	fiemap (eio_req *req)
		308	{
		309	req->result = -1;
		310
		311	#if HAVE_FIEMAP
		312	/* assume some c99 */
		313	struct fiemap *fiemap = 0;
		314	size_t end_offset;
		315	int count = req->int3;
		316
		317	req->flags |= EIO_FLAG_PTR1_FREE;
		318
		319	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		320	/* increase in 3.5kb steps */
		321	if (count < 0)
		322	count = 8;
		323
		324	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		325	errno = ENOMEM;
		326	if (!fiemap)
		327	return;
		328
		329	req->ptr1 = fiemap;
		330
		331	fiemap->fm_start = req->offs;
		332	fiemap->fm_length = req->size;
		333	fiemap->fm_flags = req->int2;
		334	fiemap->fm_extent_count = count;
		335
		336	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		337	return;
		338
		339	if (req->int3 >= 0 /* not autosizing */
		340	|| !fiemap->fm_mapped_extents /* no more extents */
		341	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		342	goto done;
		343
		344	/* else we have to loop -
		345	* it would be tempting (actually I tried that first) to just query the
		346	* number of extents needed, but linux often feels like not returning all
		347	* extents, without telling us it left any out. this complicates
		348	* this quite a bit.
		349	*/
		350
		351	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		352
		353	for (;;)
		354	{
		355	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		356	char scratch[3072];
		357	struct fiemap *incmap = (struct fiemap *)scratch;
		358
		359	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		360	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		361	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		362	incmap->fm_flags = fiemap->fm_flags;
		363	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		364
		365	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		366	return;
		367
		368	if (!incmap->fm_mapped_extents)
		369	goto done;
		370
		371	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		372	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		373	errno = ENOMEM;
		374	if (!fiemap)
		375	return;
		376
		377	req->ptr1 = fiemap;
		378
		379	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		380	{
		381	struct fiemap_extent *e = incmap->fm_extents + count;
		382
		383	if (e->fe_logical + e->fe_length >= end_offset)
		384	goto done;
		385
		386	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		387
		388	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		389	goto done;
		390
		391	}
		392	}
		393
		394	done:
		395	req->result = 0;
		396
		397	#else
		398	errno = ENOSYS;
		399	#endif
		400	}
		401
		402	/*****************************************************************************/
		403
119	enum {	404	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	405	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	406	};
122		407
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	408	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	409	typedef eio_req *aio_req_ornot;
		410	typedef eio_wd aio_wd;
127		411
128	static SV *on_next_submit;	412	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	413	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	414	static int max_outstanding;
131		415
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	416	static s_epipe respipe;
133		417
134	static void req_destroy (aio_req req);	418	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	419	static void req_cancel (aio_req req);
136		420
137	static void want_poll (void)	421	static void
		422	want_poll (void)
138	{	423	{
139	/* write a dummy byte to the pipe so fh becomes ready */	424	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	425	s_epipe_signal (&respipe);
141	}	426	}
142		427
143	static void done_poll (void)	428	static void
		429	done_poll (void)
144	{	430	{
145	/* read any signals sent by the worker threads */	431	/* read any signals sent by the worker threads */
146	char buf [4];	432	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	433	}
150		434
151	/* must be called at most once */	435	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	436	static SV *
		437	req_sv (aio_req req, HV *stash)
153	{	438	{
154	if (!req->self)	439	if (!req->self)
155	{	440	{
156	req->self = (SV *)newHV ();	441	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	442	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	443	}
159		444
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	445	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	446	}
162		447
163	static aio_req SvAIO_REQ (SV *sv)	448	static SV *
		449	newSVaio_wd (aio_wd wd)
		450	{
		451	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		452	}
		453
		454	static aio_req
		455	SvAIO_REQ (SV *sv)
164	{	456	{
165	MAGIC *mg;	457	MAGIC *mg;
166		458
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	459	if (!SvROK (sv)
		460	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		461	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		462	&& SvSTASH (SvRV (sv)) != aio_req_stash
		463	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	464	croak ("object of class IO::AIO::REQ expected");
169		465
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	466	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		467
172	return mg ? (aio_req)mg->mg_ptr : 0;	468	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	469	}
174		470
		471	static aio_wd
		472	SvAIO_WD (SV *sv)
		473	{
		474	if (!SvROK (sv)
		475	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		476	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		477	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		478
		479	return (aio_wd)(long)SvIVX (SvRV (sv));
		480	}
		481
		482	static SV *
		483	newmortalFH (int fd, int flags)
		484	{
		485	if (fd < 0)
		486	return &PL_sv_undef;
		487
		488	GV *gv = (GV *)sv_newmortal ();
		489	char sym[64];
		490	int symlen;
		491
		492	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		493	gv_init (gv, aio_stash, sym, symlen, 0);
		494
		495	symlen = snprintf (
		496	sym,
		497	sizeof (sym),
		498	"%s&=%d",
		499	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		500	fd
		501	);
		502
		503	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		504	? (SV *)gv : &PL_sv_undef;
		505	}
		506
		507	static void
175	static void aio_grp_feed (aio_req grp)	508	aio_grp_feed (aio_req grp)
176	{	509	{
177	if (grp->sv2 && SvOK (grp->sv2))	510	if (grp->sv2 && SvOK (grp->sv2))
178	{	511	{
179	dSP;	512	dSP;
180		513
181	ENTER;	514	ENTER;
182	SAVETMPS;	515	SAVETMPS;
183	PUSHMARK (SP);	516	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	517	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	518	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	519	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	520	SPAGAIN;
188	FREETMPS;	521	FREETMPS;
189	LEAVE;	522	LEAVE;
190	}	523	}
191	}	524	}
192		525
		526	static void
193	static void req_submit (eio_req *req)	527	req_submit (eio_req *req)
194	{	528	{
195	eio_submit (req);	529	eio_submit (req);
196		530
197	if (expect_false (on_next_submit))	531	if (expect_false (on_next_submit))
198	{	532	{
…		…
205	PUTBACK;	539	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	540	call_sv (cb, G_DISCARD | G_EVAL);
207	}	541	}
208	}	542	}
209		543
		544	static int
210	static int req_invoke (eio_req *req)	545	req_invoke (eio_req *req)
211	{	546	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	547	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	548	SvREADONLY_off (req->sv2);
216		549
217	if (!EIO_CANCELLED (req) && req->callback)	550	if (!EIO_CANCELLED (req) && req->callback)
218	{	551	{
		552	dSP;
		553	static SV *sv_result_cache; /* caches the result integer SV */
		554	SV *sv_result;
		555
219	ENTER;	556	ENTER;
220	SAVETMPS;	557	SAVETMPS;
221	PUSHMARK (SP);	558	PUSHMARK (SP);
222	EXTEND (SP, 1);	559	EXTEND (SP, 1);
223		560
		561	/* do not recreate the result IV from scratch each time */
		562	if (expect_true (sv_result_cache))
		563	{
		564	sv_result = sv_result_cache; sv_result_cache = 0;
		565	SvIV_set (sv_result, req->result);
		566	SvIOK_only (sv_result);
		567	}
		568	else
		569	{
		570	sv_result = newSViv (req->result);
		571	SvREADONLY_on (sv_result);
		572	}
		573
224	switch (req->type)	574	switch (req->type)
225	{	575	{
		576	case EIO_WD_OPEN:
		577	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		578	break;
		579
226	case EIO_READDIR:	580	case EIO_READDIR:
227	{	581	{
228	SV *rv = &PL_sv_undef;	582	SV *rv = &PL_sv_undef;
229		583
230	if (req->result >= 0)	584	if (req->result >= 0)
231	{	585	{
232	int i;	586	int i;
233	char *buf = req->ptr2;	587	char *names = (char *)req->ptr2;
		588	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	589	AV *av = newAV ();
235		590
236	av_extend (av, req->result - 1);	591	av_extend (av, req->result - 1);
237		592
238	for (i = 0; i < req->result; ++i)	593	for (i = 0; i < req->result; ++i)
239	{	594	{
240	SV *sv = newSVpv (buf, 0);	595	if (req->int1 & EIO_READDIR_DENTS)
		596	{
		597	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		598
		599	if (req->int1 & EIO_READDIR_CUSTOM2)
		600	{
		601	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		602	AV *avent = newAV ();
		603
		604	av_extend (avent, 2);
		605
		606	if (!sv_type [ent->type])
		607	{
		608	sv_type [ent->type] = newSViv (ent->type);
		609	SvREADONLY_on (sv_type [ent->type]);
		610	}
		611
		612	av_store (avent, 0, namesv);
		613	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		614	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		615
		616	av_store (av, i, newRV_noinc ((SV *)avent));
		617	}
		618	else
242	av_store (av, i, sv);	619	av_store (av, i, namesv);
		620
		621	++ent;
		622	}
		623	else
		624	{
		625	SV *name = newSVpv (names, 0);
		626	av_store (av, i, name);
243	buf += SvCUR (sv) + 1;	627	names += SvCUR (name) + 1;
		628	}
244	}	629	}
245		630
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	631	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	632	}
248		633
249	PUSHs (rv);	634	PUSHs (rv);
		635
		636	if (req->int1 & EIO_READDIR_CUSTOM1)
		637	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250	}	638	}
251	break;	639	break;
252		640
253	case EIO_OPEN:	641	case EIO_OPEN:
		642	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		643	break;
		644
		645	case EIO_STATVFS:
		646	case EIO_FSTATVFS:
254	{	647	{
255	/* convert fd to fh */
256	SV *fh = &PL_sv_undef;	648	SV *rv = &PL_sv_undef;
257		649
		650	#ifndef _WIN32
258	if (req->result >= 0)	651	if (req->result >= 0)
259	{	652	{
		653	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
260	GV *gv = (GV *)sv_newmortal ();	654	HV *hv = newHV ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	655	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
262	char sym [64];	656	* chooses to make it a struct.
263	int symlen;
264		657	*/
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	658	unsigned long fsid = 0;
266	gv_init (gv, stash, sym, symlen, 0);	659	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
267		660
268	symlen = snprintf (	661	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		662
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	663	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
277	fh = (SV *)gv;	664	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		665	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		666	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		667	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		668	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		669	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		670	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		671	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		672	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		673	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
278	}	674	}
		675	#endif
279		676
280	PUSHs (fh);	677	PUSHs (rv);
281	}	678	}
		679
282	break;	680	break;
283		681
284	case EIO_GROUP:	682	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	683	req->int1 = 2; /* mark group as finished */
286		684
…		…
298	case EIO_NOP:	696	case EIO_NOP:
299	case EIO_BUSY:	697	case EIO_BUSY:
300	break;	698	break;
301		699
302	case EIO_READLINK:	700	case EIO_READLINK:
		701	case EIO_REALPATH:
303	if (req->result > 0)	702	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	703	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	704	break;
306		705
307	case EIO_STAT:	706	case EIO_STAT:
308	case EIO_LSTAT:	707	case EIO_LSTAT:
309	case EIO_FSTAT:	708	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	709	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		710
311	PL_laststatval = req->result;	711	if (!(PL_laststatval = req->result))
		712	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	713	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	714
		715	PUSHs (sv_result);
314	break;	716	break;
315		717
		718	case EIO_SEEK:
		719	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		720	break;
		721
316	case EIO_READ:	722	case EIO_READ:
		723	{
317	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	724	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
318	*SvEND (req->sv2) = 0;	725	*SvEND (req->sv2) = 0;
319	PUSHs (sv_2mortal (newSViv (req->result)));	726	SvPOK_only (req->sv2);
		727	SvSETMAGIC (req->sv2);
		728	PUSHs (sv_result);
		729	}
320	break;	730	break;
321		731
322	case EIO_DUP2:	732	case EIO_SLURP:
		733	{
		734	if (req->result >= 0)
		735	{
		736	/* if length was originally not known, we steal the malloc'ed memory */
		737	if (req->flags & EIO_FLAG_PTR2_FREE)
		738	{
		739	req->flags &= ~EIO_FLAG_PTR2_FREE;
		740	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		741	}
		742	else
		743	{
		744	SvCUR_set (req->sv2, req->result);
		745	*SvEND (req->sv2) = 0;
		746	SvPOK_only (req->sv2);
		747	}
		748
		749	SvSETMAGIC (req->sv2);
		750	}
		751
		752	PUSHs (sv_result);
		753	}
		754	break;
		755
		756	case EIO_CUSTOM:
		757	if (req->feed == fiemap)
		758	{
		759	#if HAVE_FIEMAP
		760	if (!req->result)
		761	{
		762	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		763
		764	if (fiemap->fm_extent_count)
		765	{
		766	AV *av = newAV ();
		767	int i;
		768
		769	while (fiemap->fm_mapped_extents)
		770	{
		771	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		772	AV *ext_av = newAV ();
		773
		774	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		775	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		776	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		777	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		778
		779	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		780	}
		781
		782	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		783	}
		784	else
		785	{
		786	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		787	PUSHs (sv_result);
		788	}
		789	}
		790	#endif
		791	}
		792	else
		793	PUSHs (sv_result);
		794	break;
		795
		796	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
323	if (req->result > 0)	797	if (req->result > 0)
324	req->result = 0;	798	SvIV_set (sv_result, 0);
325	/* FALLTHROUGH */	799	/* FALLTHROUGH */
326		800
327	default:	801	default:
328	PUSHs (sv_2mortal (newSViv (req->result)));	802	PUSHs (sv_result);
329	break;	803	break;
330	}	804	}
331		805
332	errno = req->errorno;	806	errno = req->errorno;
333		807
334	PUTBACK;	808	PUTBACK;
335	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	809	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336	SPAGAIN;	810	SPAGAIN;
337		811
		812	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		813	SvREFCNT_dec (sv_result);
		814	else
		815	sv_result_cache = sv_result;
		816
338	FREETMPS;	817	FREETMPS;
339	LEAVE;	818	LEAVE;
340		819
341	PUTBACK;	820	PUTBACK;
342	}	821	}
343		822
344	return !!SvTRUE (ERRSV);	823	return !!SvTRUE (ERRSV);
345	}	824	}
346		825
		826	static void
347	static void req_destroy (aio_req req)	827	req_destroy (aio_req req)
348	{	828	{
349	if (req->self)	829	if (req->self)
350	{	830	{
351	sv_unmagic (req->self, PERL_MAGIC_ext);	831	sv_unmagic (req->self, PERL_MAGIC_ext);
352	SvREFCNT_dec (req->self);	832	SvREFCNT_dec (req->self);
353	}	833	}
354		834
355	SvREFCNT_dec (req->sv1);	835	SvREFCNT_dec (req->sv1);
356	SvREFCNT_dec (req->sv2);	836	SvREFCNT_dec (req->sv2);
		837	SvREFCNT_dec (req->sv3);
		838	SvREFCNT_dec (req->sv4);
357	SvREFCNT_dec (req->callback);	839	SvREFCNT_dec (req->callback);
358		840
359	Safefree (req);	841	free (req);
360	}	842	}
361		843
		844	static void
362	static void req_cancel_subs (aio_req grp)	845	req_cancel_subs (aio_req grp)
363	{	846	{
364	aio_req sub;
365
366	if (grp->type != EIO_GROUP)	847	if (grp->type != EIO_GROUP)
367	return;	848	return;
368		849
369	SvREFCNT_dec (grp->sv2);	850	SvREFCNT_dec (grp->sv2);
370	grp->sv2 = 0;	851	grp->sv2 = 0;
371		852
372	eio_grp_cancel (grp);	853	eio_grp_cancel (grp);
373	}	854	}
374		855
375	#ifdef USE_SOCKETS_AS_HANDLES	856	static void ecb_cold
376	# define TO_SOCKET(x) (win32_get_osfhandle (x))	857	create_respipe (void)
377	#else	858	{
378	# define TO_SOCKET(x) (x)	859	if (s_epipe_renew (&respipe))
379	#endif	860	croak ("IO::AIO: unable to initialize result pipe");
		861	}
380		862
381	static void	863	static void
382	create_respipe (void)	864	poll_wait (void)
383	{	865	{
384	int old_readfd = respipe [0];
385
386	if (respipe [1] >= 0)
387	respipe_close (TO_SOCKET (respipe [1]));
388
389	#ifdef _WIN32
390	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
391	#else
392	if (pipe (respipe))
393	#endif
394	croak ("unable to initialize result pipe");
395
396	if (old_readfd >= 0)
397	{
398	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
399	croak ("unable to initialize result pipe(2)");
400
401	respipe_close (respipe [0]);
402	respipe [0] = old_readfd;
403	}
404
405	#ifdef _WIN32
406	int arg = 1;
407	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
408	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
409	#else
410	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
411	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
412	#endif
413	croak ("unable to initialize result pipe(3)");
414
415	respipe_osf [0] = TO_SOCKET (respipe [0]);
416	respipe_osf [1] = TO_SOCKET (respipe [1]);
417	}
418
419	static void poll_wait (void)
420	{
421	fd_set rfd;
422
423	while (eio_nreqs ())	866	while (eio_nreqs ())
424	{	867	{
425	int size;	868	int size;
426		869
427	X_LOCK (reslock);	870	X_LOCK (EIO_POOL->reslock);
428	size = res_queue.size;	871	size = EIO_POOL->res_queue.size;
429	X_UNLOCK (reslock);	872	X_UNLOCK (EIO_POOL->reslock);
430		873
431	if (size)	874	if (size)
432	return;	875	return;
433		876
434	etp_maybe_start_thread ();	877	etp_maybe_start_thread (EIO_POOL);
435		878
436	FD_ZERO (&rfd);	879	s_epipe_wait (&respipe);
437	FD_SET (respipe [0], &rfd);
438
439	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440	}	880	}
441	}	881	}
442		882
443	static int poll_cb (void)	883	static int
		884	poll_cb (void)
444	{	885	{
445	for (;;)	886	for (;;)
446	{	887	{
447	int res = eio_poll ();	888	int res = eio_poll ();
448		889
…		…
454		895
455	poll_wait ();	896	poll_wait ();
456	}	897	}
457	}	898	}
458		899
459	static void atfork_child (void)	900	static void ecb_cold
		901	reinit (void)
460	{	902	{
461	create_respipe ();	903	create_respipe ();
		904
		905	if (eio_init (want_poll, done_poll) < 0)
		906	croak ("IO::AIO: unable to initialise eio library");
462	}	907	}
		908
		909	/*****************************************************************************/
463		910
464	static SV *	911	static SV *
465	get_cb (SV *cb_sv)	912	get_cb (SV *cb_sv)
466	{	913	{
467	HV *st;	914	SvGETMAGIC (cb_sv);
468	GV *gvp;	915	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		916	}
		917
		918	static aio_req ecb_noinline
		919	dreq (SV *callback)
		920	{
469	CV *cv;	921	SV *cb_cv;
		922	aio_req req;
		923	int req_pri = next_pri;
		924	next_pri = EIO_PRI_DEFAULT;
470		925
471	if (!SvOK (cb_sv))	926	cb_cv = get_cb (callback);
		927
		928	req = calloc (sizeof (*req), 1);
		929	if (!req)
		930	croak ("out of memory during eio_req allocation");
		931
		932	req->callback = SvREFCNT_inc (cb_cv);
		933	req->pri = req_pri;
		934
472	return 0;	935	return req;
473
474	cv = sv_2cv (cb_sv, &st, &gvp, 0);
475
476	if (!cv)
477	croak ("IO::AIO callback must be undef or a CODE reference");
478
479	return (SV *)cv;
480	}	936	}
481		937
482	#define dREQ \	938	#define dREQ \
483	SV *cb_cv; \	939	aio_req req = dreq (callback); \
484	aio_req req; \
485	int req_pri = next_pri; \
486	next_pri = EIO_PRI_DEFAULT; \
487	\
488	cb_cv = get_cb (callback); \
489	\
490	Newz (0, req, 1, eio_req); \
491	if (!req) \
492	croak ("out of memory during eio_req allocation"); \
493	\
494	req->callback = SvREFCNT_inc (cb_cv); \
495	req->pri = req_pri
496		940
497	#define REQ_SEND \	941	#define REQ_SEND \
498	PUTBACK; \	942	PUTBACK; \
499	req_submit (req); \	943	req_submit (req); \
500	SPAGAIN; \	944	SPAGAIN; \
501	\	945	\
502	if (GIMME_V != G_VOID) \	946	if (GIMME_V != G_VOID) \
503	XPUSHs (req_sv (req, AIO_REQ_KLASS));	947	XPUSHs (req_sv (req, aio_req_stash));
504		948
		949	ecb_inline void
		950	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		951	{
		952	if (expect_false (SvROK (path)))
		953	{
		954	SV *rv = SvRV (path);
		955	SV *wdob;
		956
		957	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		958	{
		959	path = AvARRAY (rv)[1];
		960	wdob = AvARRAY (rv)[0];
		961
		962	if (SvOK (wdob))
		963	{
		964	*wd = SvAIO_WD (wdob);
		965	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		966	}
		967	else
		968	*wd = EIO_INVALID_WD;
		969	}
		970	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		971	{
		972	*wd = (aio_wd)(long)SvIVX (rv);
		973	*wdsv = SvREFCNT_inc_NN (rv);
		974	*ptr = ".";
		975	return; /* path set to "." */
		976	}
		977	else
		978	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		979	}
		980
		981	*pathsv = newSVsv (path);
		982	*ptr = SvPVbyte_nolen (*pathsv);
		983	}
		984
		985	static void ecb_noinline
		986	req_set_path1 (aio_req req, SV *path)
		987	{
		988	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		989	}
		990
		991	static void ecb_noinline
		992	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		993	{
		994	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		995
		996	switch (SvTYPE (rv))
		997	{
		998	case SVt_PVIO:
		999	case SVt_PVLV:
		1000	case SVt_PVGV:
		1001	req->type = type_fh;
		1002	req->sv1 = newSVsv (fh_or_path);
		1003	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1004	break;
		1005
		1006	default:
		1007	req->type = type_path;
		1008	req_set_path1 (req, fh_or_path);
		1009	break;
		1010	}
		1011	}
		1012
		1013	/*****************************************************************************/
		1014
505	static int	1015	static void
506	extract_fd (SV *fh, int wr)	1016	ts_set (struct timespec *ts, NV value)
507	{	1017	{
508	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	1018	ts->tv_sec = value;
509		1019	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
510	if (fd < 0)
511	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
512
513	return fd;
514	}	1020	}
		1021
		1022	static NV
		1023	ts_get (const struct timespec *ts)
		1024	{
		1025	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1026	}
		1027
		1028	/*****************************************************************************/
		1029
		1030	XS(boot_IO__AIO) ecb_cold;
515		1031
516	MODULE = IO::AIO PACKAGE = IO::AIO	1032	MODULE = IO::AIO PACKAGE = IO::AIO
517		1033
518	PROTOTYPES: ENABLE	1034	PROTOTYPES: ENABLE
519		1035
520	BOOT:	1036	BOOT:
521	{	1037	{
		1038	static const struct {
		1039	const char *name;
		1040	IV iv;
		1041	} *civ, const_iv[] = {
		1042	# define const_niv(name, value) { # name, (IV) value },
		1043	# define const_iv(name) { # name, (IV) name },
		1044	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1045
		1046	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1047	/* the first block can be undef if missing */
		1048	const_iv (ENOSYS)
		1049	const_iv (EXDEV)
		1050	const_iv (EBADR)
		1051
		1052	/* for lseek */
		1053	const_iv (SEEK_DATA)
		1054	const_iv (SEEK_HOLE)
		1055
		1056	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1057	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1058	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1059	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1060	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1061	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1062
		1063	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1064	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1065	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1066	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1067	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1068
		1069	/* the second block will be 0 when missing */
		1070	const_iv (O_ACCMODE)
		1071
		1072	const_iv (O_RDONLY)
		1073	const_iv (O_WRONLY)
		1074	const_iv (O_RDWR)
		1075	const_iv (O_CREAT)
		1076	const_iv (O_TRUNC)
		1077	const_iv (O_EXCL)
		1078	const_iv (O_APPEND)
		1079
		1080	const_iv (O_ASYNC)
		1081	const_iv (O_DIRECT)
		1082	const_iv (O_NOATIME)
		1083
		1084	const_iv (O_CLOEXEC)
		1085	const_iv (O_NOCTTY)
		1086	const_iv (O_NOFOLLOW)
		1087	const_iv (O_NONBLOCK)
		1088	const_iv (O_EXEC)
		1089	const_iv (O_SEARCH)
		1090	const_iv (O_DIRECTORY)
		1091	const_iv (O_DSYNC)
		1092	const_iv (O_RSYNC)
		1093	const_iv (O_SYNC)
		1094	const_iv (O_PATH)
		1095	const_iv (O_TMPFILE)
		1096	const_iv (O_TTY_INIT)
		1097
		1098	const_iv (S_IFIFO)
		1099	const_iv (S_IFCHR)
		1100	const_iv (S_IFBLK)
		1101	const_iv (S_IFLNK)
		1102	const_iv (S_IFREG)
		1103	const_iv (S_IFDIR)
		1104	const_iv (S_IFWHT)
		1105	const_iv (S_IFSOCK)
		1106	const_iv (S_IFMT)
		1107
		1108	const_iv (ST_RDONLY)
		1109	const_iv (ST_NOSUID)
		1110	const_iv (ST_NODEV)
		1111	const_iv (ST_NOEXEC)
		1112	const_iv (ST_SYNCHRONOUS)
		1113	const_iv (ST_MANDLOCK)
		1114	const_iv (ST_WRITE)
		1115	const_iv (ST_APPEND)
		1116	const_iv (ST_IMMUTABLE)
		1117	const_iv (ST_NOATIME)
		1118	const_iv (ST_NODIRATIME)
		1119	const_iv (ST_RELATIME)
		1120
		1121	const_iv (PROT_NONE)
		1122	const_iv (PROT_EXEC)
		1123	const_iv (PROT_READ)
		1124	const_iv (PROT_WRITE)
		1125
		1126	const_iv (MAP_PRIVATE)
		1127	const_iv (MAP_SHARED)
		1128	const_iv (MAP_FIXED)
		1129	const_iv (MAP_ANONYMOUS)
		1130
		1131	/* linuxish */
		1132	const_iv (MAP_LOCKED)
		1133	const_iv (MAP_NORESERVE)
		1134	const_iv (MAP_POPULATE)
		1135	const_iv (MAP_NONBLOCK)
		1136	const_iv (MAP_GROWSDOWN)
		1137	const_iv (MAP_32BIT)
		1138	const_iv (MAP_HUGETLB)
		1139	const_iv (MAP_STACK)
		1140
		1141	const_iv (MREMAP_MAYMOVE)
		1142	const_iv (MREMAP_FIXED)
		1143
		1144	const_iv (F_DUPFD_CLOEXEC)
		1145
		1146	const_iv (MSG_CMSG_CLOEXEC)
		1147	const_iv (SOCK_CLOEXEC)
		1148
		1149	const_iv (F_OFD_GETLK)
		1150	const_iv (F_OFD_SETLK)
		1151	const_iv (F_OFD_GETLKW)
		1152
		1153	const_iv (FIFREEZE)
		1154	const_iv (FITHAW)
		1155	const_iv (FITRIM)
		1156	const_iv (FICLONE)
		1157	const_iv (FICLONERANGE)
		1158	const_iv (FIDEDUPERANGE)
		1159
		1160	const_iv (FS_IOC_GETFLAGS)
		1161	const_iv (FS_IOC_SETFLAGS)
		1162	const_iv (FS_IOC_GETVERSION)
		1163	const_iv (FS_IOC_SETVERSION)
		1164	const_iv (FS_IOC_FIEMAP)
		1165	const_iv (FS_IOC_FSGETXATTR)
		1166	const_iv (FS_IOC_FSSETXATTR)
		1167	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1168	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1169	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1170
		1171	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1172
		1173	const_iv (FS_SECRM_FL)
		1174	const_iv (FS_UNRM_FL)
		1175	const_iv (FS_COMPR_FL)
		1176	const_iv (FS_SYNC_FL)
		1177	const_iv (FS_IMMUTABLE_FL)
		1178	const_iv (FS_APPEND_FL)
		1179	const_iv (FS_NODUMP_FL)
		1180	const_iv (FS_NOATIME_FL)
		1181	const_iv (FS_DIRTY_FL)
		1182	const_iv (FS_COMPRBLK_FL)
		1183	const_iv (FS_NOCOMP_FL)
		1184	const_iv (FS_ENCRYPT_FL)
		1185	const_iv (FS_BTREE_FL)
		1186	const_iv (FS_INDEX_FL)
		1187	const_iv (FS_JOURNAL_DATA_FL)
		1188	const_iv (FS_NOTAIL_FL)
		1189	const_iv (FS_DIRSYNC_FL)
		1190	const_iv (FS_TOPDIR_FL)
		1191	const_iv (FS_FL_USER_MODIFIABLE)
		1192
		1193	const_iv (FS_XFLAG_REALTIME)
		1194	const_iv (FS_XFLAG_PREALLOC)
		1195	const_iv (FS_XFLAG_IMMUTABLE)
		1196	const_iv (FS_XFLAG_APPEND)
		1197	const_iv (FS_XFLAG_SYNC)
		1198	const_iv (FS_XFLAG_NOATIME)
		1199	const_iv (FS_XFLAG_NODUMP)
		1200	const_iv (FS_XFLAG_RTINHERIT)
		1201	const_iv (FS_XFLAG_PROJINHERIT)
		1202	const_iv (FS_XFLAG_NOSYMLINKS)
		1203	const_iv (FS_XFLAG_EXTSIZE)
		1204	const_iv (FS_XFLAG_EXTSZINHERIT)
		1205	const_iv (FS_XFLAG_NODEFRAG)
		1206	const_iv (FS_XFLAG_FILESTREAM)
		1207	const_iv (FS_XFLAG_DAX)
		1208	const_iv (FS_XFLAG_HASATTR)
		1209
		1210	const_iv (FIEMAP_FLAG_SYNC)
		1211	const_iv (FIEMAP_FLAG_XATTR)
		1212	const_iv (FIEMAP_FLAGS_COMPAT)
		1213	const_iv (FIEMAP_EXTENT_LAST)
		1214	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1215	const_iv (FIEMAP_EXTENT_DELALLOC)
		1216	const_iv (FIEMAP_EXTENT_ENCODED)
		1217	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1218	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1219	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1220	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1221	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1222	const_iv (FIEMAP_EXTENT_MERGED)
		1223	const_iv (FIEMAP_EXTENT_SHARED)
		1224
		1225	const_iv (SPLICE_F_MOVE)
		1226	const_iv (SPLICE_F_NONBLOCK)
		1227	const_iv (SPLICE_F_MORE)
		1228	const_iv (SPLICE_F_GIFT)
		1229
		1230	const_iv (EFD_CLOEXEC)
		1231	const_iv (EFD_NONBLOCK)
		1232	const_iv (EFD_SEMAPHORE)
		1233
		1234	const_iv (CLOCK_REALTIME)
		1235	const_iv (CLOCK_MONOTONIC)
		1236	const_iv (CLOCK_BOOTTIME)
		1237	const_iv (CLOCK_REALTIME_ALARM)
		1238	const_iv (CLOCK_BOOTTIME_ALARM)
		1239
		1240	const_iv (TFD_NONBLOCK)
		1241	const_iv (TFD_CLOEXEC)
		1242
		1243	const_iv (TFD_TIMER_ABSTIME)
		1244	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1245
		1246	/* these are libeio constants, and are independent of gendef0 */
		1247	const_eio (SEEK_SET)
		1248	const_eio (SEEK_CUR)
		1249	const_eio (SEEK_END)
		1250
		1251	const_eio (MCL_FUTURE)
		1252	const_eio (MCL_CURRENT)
		1253
		1254	const_eio (MS_ASYNC)
		1255	const_eio (MS_INVALIDATE)
		1256	const_eio (MS_SYNC)
		1257
		1258	const_eio (MT_MODIFY)
		1259
		1260	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1261	const_eio (SYNC_FILE_RANGE_WRITE)
		1262	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1263
		1264	const_eio (FALLOC_FL_KEEP_SIZE)
		1265	const_eio (FALLOC_FL_PUNCH_HOLE)
		1266	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1267	const_eio (FALLOC_FL_ZERO_RANGE)
		1268	const_eio (FALLOC_FL_INSERT_RANGE)
		1269	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1270
		1271	const_eio (RENAME_NOREPLACE)
		1272	const_eio (RENAME_EXCHANGE)
		1273	const_eio (RENAME_WHITEOUT)
		1274
		1275	const_eio (READDIR_DENTS)
		1276	const_eio (READDIR_DIRS_FIRST)
		1277	const_eio (READDIR_STAT_ORDER)
		1278	const_eio (READDIR_FOUND_UNKNOWN)
		1279
		1280	const_eio (DT_UNKNOWN)
		1281	const_eio (DT_FIFO)
		1282	const_eio (DT_CHR)
		1283	const_eio (DT_DIR)
		1284	const_eio (DT_BLK)
		1285	const_eio (DT_REG)
		1286	const_eio (DT_LNK)
		1287	const_eio (DT_SOCK)
		1288	const_eio (DT_WHT)
		1289	};
		1290
522	stash = gv_stashpv ("IO::AIO", 1);	1291	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1292	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1293	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1294	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
523		1295
524	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1296	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
525	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1297	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
526	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
527	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
528	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
529	#ifndef _WIN32
530	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
531	#endif
532	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
533	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));
534	newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));
535	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
536		1298
537	create_respipe ();	1299	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
538		1300
539	if (eio_init (want_poll, done_poll) < 0)	1301	reinit ();
540	croak ("IO::AIO: unable to initialise eio library");
541
542	/* atfork child called in fifo order, so before eio's handler */
543	X_THREAD_ATFORK (0, 0, atfork_child);
544	}	1302	}
545		1303
546	void	1304	void
		1305	reinit ()
		1306	PROTOTYPE:
		1307
		1308	void
547	max_poll_reqs (int nreqs)	1309	max_poll_reqs (unsigned int nreqs)
548	PROTOTYPE: $	1310	PROTOTYPE: $
549	CODE:	1311	CODE:
550	eio_set_max_poll_reqs (nreqs);	1312	eio_set_max_poll_reqs (nreqs);
551		1313
552	void	1314	void
…		…
554	PROTOTYPE: $	1316	PROTOTYPE: $
555	CODE:	1317	CODE:
556	eio_set_max_poll_time (nseconds);	1318	eio_set_max_poll_time (nseconds);
557		1319
558	void	1320	void
559	min_parallel (int nthreads)	1321	min_parallel (unsigned int nthreads)
560	PROTOTYPE: $	1322	PROTOTYPE: $
561	CODE:	1323	CODE:
562	eio_set_min_parallel (nthreads);	1324	eio_set_min_parallel (nthreads);
563		1325
564	void	1326	void
565	max_parallel (int nthreads)	1327	max_parallel (unsigned int nthreads)
566	PROTOTYPE: $	1328	PROTOTYPE: $
567	CODE:	1329	CODE:
568	eio_set_max_parallel (nthreads);	1330	eio_set_max_parallel (nthreads);
569		1331
570	void	1332	void
571	max_idle (int nthreads)	1333	max_idle (unsigned int nthreads)
572	PROTOTYPE: $	1334	PROTOTYPE: $
573	CODE:	1335	CODE:
574	eio_set_max_idle (nthreads);	1336	eio_set_max_idle (nthreads);
575		1337
576	void	1338	void
		1339	idle_timeout (unsigned int seconds)
		1340	PROTOTYPE: $
		1341	CODE:
		1342	eio_set_idle_timeout (seconds);
		1343
		1344	void
577	max_outstanding (int maxreqs)	1345	max_outstanding (unsigned int maxreqs)
578	PROTOTYPE: $	1346	PROTOTYPE: $
579	CODE:	1347	CODE:
580	max_outstanding = maxreqs;	1348	max_outstanding = maxreqs;
581		1349
582	void	1350	void
583	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1351	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
584	PROTOTYPE: $$$;$
585	PPCODE:	1352	PPCODE:
586	{	1353	{
587	dREQ;	1354	dREQ;
588		1355
		1356	req->type = EIO_WD_OPEN;
		1357	req_set_path1 (req, pathname);
		1358
		1359	REQ_SEND;
		1360	}
		1361
		1362	void
		1363	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1364	PPCODE:
		1365	{
		1366	dREQ;
		1367
589	req->type = EIO_OPEN;	1368	req->type = EIO_OPEN;
590	req->sv1 = newSVsv (pathname);	1369	req_set_path1 (req, pathname);
591	req->ptr1 = SvPVbyte_nolen (req->sv1);
592	req->int1 = flags;	1370	req->int1 = flags;
593	req->int2 = mode;	1371	req->int2 = mode;
594		1372
595	REQ_SEND;	1373	REQ_SEND;
596	}	1374	}
597		1375
598	void	1376	void
599	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1377	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
600	PROTOTYPE: $;$
601	ALIAS:	1378	ALIAS:
602	aio_fsync = EIO_FSYNC	1379	aio_fsync = EIO_FSYNC
603	aio_fdatasync = EIO_FDATASYNC	1380	aio_fdatasync = EIO_FDATASYNC
		1381	aio_syncfs = EIO_SYNCFS
604	PPCODE:	1382	PPCODE:
605	{	1383	{
606	int fd = extract_fd (fh, 0);	1384	int fd = s_fileno_croak (fh, 0);
607	dREQ;	1385	dREQ;
608		1386
609	req->type = ix;	1387	req->type = ix;
610	req->sv1 = newSVsv (fh);	1388	req->sv1 = newSVsv (fh);
611	req->int1 = fd;	1389	req->int1 = fd;
612		1390
613	REQ_SEND (req);	1391	REQ_SEND;
614	}	1392	}
615		1393
616	void	1394	void
617	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1395	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
618	PROTOTYPE: $$$$;$
619	PPCODE:	1396	PPCODE:
620	{	1397	{
621	int fd = extract_fd (fh, 0);	1398	int fd = s_fileno_croak (fh, 0);
622	dREQ;	1399	dREQ;
623		1400
624	req->type = EIO_SYNC_FILE_RANGE;	1401	req->type = EIO_SYNC_FILE_RANGE;
625	req->sv1 = newSVsv (fh);	1402	req->sv1 = newSVsv (fh);
626	req->int1 = fd;	1403	req->int1 = fd;
627	req->offs = SvVAL64 (offset);	1404	req->offs = offset;
628	req->size = SvVAL64 (nbytes);	1405	req->size = nbytes;
629	req->int2 = flags;	1406	req->int2 = flags;
630		1407
631	REQ_SEND (req);	1408	REQ_SEND;
632	}	1409	}
633		1410
634	void	1411	void
635	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1412	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
636	PROTOTYPE: $;$
637	PPCODE:	1413	PPCODE:
638	{	1414	{
639	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1415	int fd = s_fileno_croak (fh, 0);
640	int fd = extract_fd (fh, 0);
641	dREQ;	1416	dREQ;
642		1417
643	if (close_pipe < 0)	1418	req->type = EIO_FALLOCATE;
		1419	req->sv1 = newSVsv (fh);
		1420	req->int1 = fd;
		1421	req->int2 = mode;
		1422	req->offs = offset;
		1423	req->size = len;
		1424
		1425	REQ_SEND;
		1426	}
		1427
		1428	void
		1429	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1430	PPCODE:
		1431	{
		1432	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1433	int fd = s_fileno_croak (fh, 0);
		1434	dREQ;
		1435
		1436	if (expect_false (close_fd < 0))
644	{	1437	{
645	int pipefd [2];	1438	int pipefd [2];
646		1439
		1440	if (
		1441	#ifdef _WIN32
		1442	_pipe (pipefd, 1, _O_BINARY) < 0
		1443	#else
647	if (pipe (pipefd) < 0	1444	pipe (pipefd) < 0
648	|| close (pipefd [1]) < 0
649	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1445	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1446	#endif
		1447	|| close (pipefd [1]) < 0
		1448	)
650	abort (); /*D*/	1449	abort (); /*D*/
651		1450
652	close_pipe = pipefd [0];	1451	close_fd = pipefd [0];
653	}	1452	}
654		1453
655	req->type = EIO_DUP2;	1454	req->type = EIO_DUP2;
656	req->int1 = close_pipe;	1455	req->int1 = close_fd;
657	req->sv2 = newSVsv (fh);	1456	req->sv2 = newSVsv (fh);
658	req->int2 = fd;	1457	req->int2 = fd;
659		1458
660	REQ_SEND (req);	1459	REQ_SEND;
661	}	1460	}
662		1461
663	void	1462	void
		1463	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1464	PPCODE:
		1465	{
		1466	int fd = s_fileno_croak (fh, 0);
		1467	dREQ;
		1468
		1469	req->type = EIO_SEEK;
		1470	req->sv1 = newSVsv (fh);
		1471	req->int1 = fd;
		1472	req->offs = SvVAL64 (offset);
		1473	req->int2 = whence;
		1474
		1475	REQ_SEND;
		1476	}
		1477
		1478	void
664	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
665	ALIAS:	1480	ALIAS:
666	aio_read = EIO_READ	1481	aio_read = EIO_READ
667	aio_write = EIO_WRITE	1482	aio_write = EIO_WRITE
668	PROTOTYPE: $$$$$;$
669	PPCODE:	1483	PPCODE:
670	{	1484	{
671	STRLEN svlen;	1485	STRLEN svlen;
		1486	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
672	char *svptr = SvPVbyte (data, svlen);	1487	char *svptr = SvPVbyte (data, svlen);
673	UV len = SvUV (length);	1488	UV len = SvUV (length);
674	int fd;
675
676	if (SvTYPE (data) > SVt_PVMG)
677	croak ("illegal data argument '%s', must be plain scalar string", SvPV_nolen (data));
678
679	SvUPGRADE (data, SVt_PV);
680	SvPOK_only (data);
681		1489
682	if (dataoffset < 0)	1490	if (dataoffset < 0)
683	dataoffset += svlen;	1491	dataoffset += svlen;
684		1492
685	if (dataoffset < 0 || dataoffset > svlen)	1493	if (dataoffset < 0 || dataoffset > svlen)
…		…
691	if (!SvOK (length) || len + dataoffset > svlen)	1499	if (!SvOK (length) || len + dataoffset > svlen)
692	len = svlen - dataoffset;	1500	len = svlen - dataoffset;
693	}	1501	}
694	else	1502	else
695	{	1503	{
696	/* read: grow scalar as necessary */	1504	/* read: check type and grow scalar as necessary */
		1505	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
697	svptr = SvGROW (data, len + dataoffset + 1);	1506	svptr = sv_grow (data, len + dataoffset + 1);
		1507	else if (SvCUR (data) < len + dataoffset)
		1508	croak ("length + dataoffset outside of scalar, and cannot grow");
698	}	1509	}
699
700	if (len < 0)
701	croak ("length must not be negative");
702
703	fd = extract_fd (fh, ix == EIO_WRITE);
704		1510
705	{	1511	{
706	dREQ;	1512	dREQ;
707		1513
708	req->type = ix;	1514	req->type = ix;
…		…
723	REQ_SEND;	1529	REQ_SEND;
724	}	1530	}
725	}	1531	}
726		1532
727	void	1533	void
728	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1534	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
729	PROTOTYPE: $$;$	1535	ALIAS:
		1536	aio_ioctl = EIO_IOCTL
		1537	aio_fcntl = EIO_FCNTL
730	PPCODE:	1538	PPCODE:
731	{	1539	{
732	SV *data;	1540	int fd = s_fileno_croak (fh, 0);
		1541	char *svptr;
		1542
		1543	if (SvPOK (arg) || !SvNIOK (arg))
		1544	{
		1545	STRLEN svlen;
		1546	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1547	#ifdef IOCPARM_LEN
		1548	STRLEN need = IOCPARM_LEN (request);
		1549	#else
		1550	STRLEN need = 256;
		1551	#endif
		1552
		1553	if (svlen < need)
		1554	svptr = SvGROW (arg, need);
		1555	}
		1556	else
		1557	svptr = (char *)SvIV (arg);
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = ix;
		1563	req->sv1 = newSVsv (fh);
		1564	req->int1 = fd;
		1565	req->int2 = (long)request;
		1566	req->sv2 = SvREFCNT_inc (arg);
		1567	req->ptr2 = svptr;
		1568
		1569	REQ_SEND;
		1570	}
		1571	}
		1572
		1573	void
		1574	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1575	ALIAS:
		1576	aio_readlink = EIO_READLINK
		1577	aio_realpath = EIO_REALPATH
		1578	PPCODE:
		1579	{
733	dREQ;	1580	dREQ;
734		1581
735	req->type = EIO_READLINK;	1582	req->type = ix;
736	req->sv1 = newSVsv (path);	1583	req_set_path1 (req, pathname);
737	req->ptr1 = SvPVbyte_nolen (req->sv1);
738		1584
739	REQ_SEND;	1585	REQ_SEND;
740	}	1586	}
741		1587
742	void	1588	void
743	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1589	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
744	PROTOTYPE: $$$$;$
745	PPCODE:	1590	PPCODE:
746	{	1591	{
747	int ifd = extract_fd (in_fh , 0);	1592	int ifd = s_fileno_croak (in_fh , 0);
748	int ofd = extract_fd (out_fh, 0);	1593	int ofd = s_fileno_croak (out_fh, 1);
749	dREQ;	1594	dREQ;
750		1595
751	req->type = EIO_SENDFILE;	1596	req->type = EIO_SENDFILE;
752	req->sv1 = newSVsv (out_fh);	1597	req->sv1 = newSVsv (out_fh);
753	req->int1 = ofd;	1598	req->int1 = ofd;
754	req->sv2 = newSVsv (in_fh);	1599	req->sv2 = newSVsv (in_fh);
755	req->int2 = ifd;	1600	req->int2 = ifd;
756	req->offs = SvVAL64 (in_offset);	1601	req->offs = in_offset;
757	req->size = length;	1602	req->size = length;
758		1603
759	REQ_SEND;	1604	REQ_SEND;
760	}	1605	}
761		1606
762	void	1607	void
763	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1608	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
764	PROTOTYPE: $$$;$
765	PPCODE:	1609	PPCODE:
766	{	1610	{
767	int fd = extract_fd (fh, 0);	1611	int fd = s_fileno_croak (fh, 0);
768	dREQ;	1612	dREQ;
769		1613
770	req->type = EIO_READAHEAD;	1614	req->type = EIO_READAHEAD;
771	req->sv1 = newSVsv (fh);	1615	req->sv1 = newSVsv (fh);
772	req->int1 = fd;	1616	req->int1 = fd;
773	req->offs = SvVAL64 (offset);	1617	req->offs = offset;
774	req->size = length;	1618	req->size = length;
775		1619
776	REQ_SEND;	1620	REQ_SEND;
777	}	1621	}
778		1622
779	void	1623	void
780	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1624	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
781	ALIAS:	1625	ALIAS:
782	aio_stat = EIO_STAT	1626	aio_stat = EIO_STAT
783	aio_lstat = EIO_LSTAT	1627	aio_lstat = EIO_LSTAT
		1628	aio_statvfs = EIO_STATVFS
784	PPCODE:	1629	PPCODE:
785	{	1630	{
786	dREQ;	1631	dREQ;
787		1632
788	req->sv1 = newSVsv (fh_or_path);	1633	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
789
790	if (SvPOK (req->sv1))
791	{
792	req->type = ix;
793	req->ptr1 = SvPVbyte_nolen (req->sv1);
794	}
795	else
796	{
797	req->type = EIO_FSTAT;
798	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799	}
800		1634
801	REQ_SEND;	1635	REQ_SEND;
802	}	1636	}
803		1637
804	void	1638	void
		1639	st_xtime ()
		1640	ALIAS:
		1641	st_atime = 1
		1642	st_mtime = 2
		1643	st_ctime = 4
		1644	st_xtime = 7
		1645	PPCODE:
		1646	EXTEND (SP, 3);
		1647	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1648	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1649	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1650
		1651	void
		1652	st_xtimensec ()
		1653	ALIAS:
		1654	st_atimensec = 1
		1655	st_mtimensec = 2
		1656	st_ctimensec = 4
		1657	st_xtimensec = 7
		1658	PPCODE:
		1659	EXTEND (SP, 3);
		1660	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1661	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1662	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1663
		1664	UV
		1665	major (UV dev)
		1666	ALIAS:
		1667	minor = 1
		1668	CODE:
		1669	RETVAL = ix ? minor (dev) : major (dev);
		1670	OUTPUT:
		1671	RETVAL
		1672
		1673	UV
		1674	makedev (UV maj, UV min)
		1675	CODE:
		1676	RETVAL = makedev (maj, min);
		1677	OUTPUT:
		1678	RETVAL
		1679
		1680	void
805	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1681	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
806	PPCODE:	1682	PPCODE:
807	{	1683	{
808	dREQ;	1684	dREQ;
809		1685
810	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1686	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
811	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1687	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
812	req->sv1 = newSVsv (fh_or_path);	1688	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
813
814	if (SvPOK (req->sv1))
815	{
816	req->type = EIO_UTIME;
817	req->ptr1 = SvPVbyte_nolen (req->sv1);
818	}
819	else
820	{
821	req->type = EIO_FUTIME;
822	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823	}
824		1689
825	REQ_SEND;	1690	REQ_SEND;
826	}	1691	}
827		1692
828	void	1693	void
829	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1694	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
830	PPCODE:	1695	PPCODE:
831	{	1696	{
832	dREQ;	1697	dREQ;
833		1698
834	req->sv1 = newSVsv (fh_or_path);
835	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1699	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
836		1700	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
837	if (SvPOK (req->sv1))
838	{
839	req->type = EIO_TRUNCATE;
840	req->ptr1 = SvPVbyte_nolen (req->sv1);
841	}
842	else
843	{
844	req->type = EIO_FTRUNCATE;
845	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
846	}
847		1701
848	REQ_SEND;	1702	REQ_SEND;
849	}	1703	}
850		1704
851	void	1705	void
852	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1706	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
853	ALIAS:
854	aio_chmod = EIO_CHMOD
855	aio_mkdir = EIO_MKDIR
856	PPCODE:	1707	PPCODE:
857	{	1708	{
858	dREQ;	1709	dREQ;
859		1710
860	req->int2 = mode;	1711	req->int2 = mode;
861	req->sv1 = newSVsv (fh_or_path);	1712	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
862
863	if (SvPOK (req->sv1))
864	{
865	req->type = ix;
866	req->ptr1 = SvPVbyte_nolen (req->sv1);
867	}
868	else
869	{
870	req->type = EIO_FCHMOD;
871	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
872	}
873		1713
874	REQ_SEND;	1714	REQ_SEND;
875	}	1715	}
876		1716
877	void	1717	void
878	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1718	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
879	PPCODE:	1719	PPCODE:
880	{	1720	{
881	dREQ;	1721	dREQ;
882		1722
883	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1723	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
884	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1724	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
885	req->sv1 = newSVsv (fh_or_path);	1725	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
886
887	if (SvPOK (req->sv1))
888	{
889	req->type = EIO_CHOWN;
890	req->ptr1 = SvPVbyte_nolen (req->sv1);
891	}
892	else
893	{
894	req->type = EIO_FCHOWN;
895	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
896	}
897		1726
898	REQ_SEND;	1727	REQ_SEND;
899	}	1728	}
900		1729
901	void	1730	void
		1731	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	dREQ;
		1735
		1736	req->type = EIO_READDIR;
		1737	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1738
		1739	if (flags & EIO_READDIR_DENTS)
		1740	req->int1 |= EIO_READDIR_CUSTOM2;
		1741
		1742	req_set_path1 (req, pathname);
		1743
		1744	REQ_SEND;
		1745	}
		1746
		1747	void
		1748	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1749	PPCODE:
		1750	{
		1751	dREQ;
		1752
		1753	req->type = EIO_MKDIR;
		1754	req->int2 = mode;
		1755	req_set_path1 (req, pathname);
		1756
		1757	REQ_SEND;
		1758	}
		1759
		1760	void
902	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1761	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
903	ALIAS:	1762	ALIAS:
904	aio_unlink = EIO_UNLINK	1763	aio_unlink = EIO_UNLINK
905	aio_rmdir = EIO_RMDIR	1764	aio_rmdir = EIO_RMDIR
906	aio_readdir = EIO_READDIR	1765	aio_readdir = EIO_READDIR
907	PPCODE:	1766	PPCODE:
908	{	1767	{
909	dREQ;	1768	dREQ;
910		1769
911	req->type = ix;	1770	req->type = ix;
912	req->sv1 = newSVsv (pathname);	1771	req_set_path1 (req, pathname);
913	req->ptr1 = SvPVbyte_nolen (req->sv1);
914		1772
915	REQ_SEND;	1773	REQ_SEND;
916	}	1774	}
917		1775
918	void	1776	void
919	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
920	ALIAS:	1778	ALIAS:
921	aio_link = EIO_LINK	1779	aio_link = EIO_LINK
922	aio_symlink = EIO_SYMLINK	1780	aio_symlink = EIO_SYMLINK
923	aio_rename = EIO_RENAME	1781	aio_rename = EIO_RENAME
924	PPCODE:	1782	PPCODE:
925	{	1783	{
		1784	eio_wd wd2 = 0;
926	dREQ;	1785	dREQ;
927		1786
928	req->type = ix;	1787	req->type = ix;
929	req->sv1 = newSVsv (oldpath);	1788	req_set_path1 (req, oldpath);
930	req->ptr1 = SvPVbyte_nolen (req->sv1);	1789	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
931	req->sv2 = newSVsv (newpath);	1790	req->int3 = (long)wd2;
932	req->ptr2 = SvPVbyte_nolen (req->sv2);
933		1791
934	REQ_SEND;	1792	REQ_SEND;
935	}	1793	}
936		1794
937	void	1795	void
		1796	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	eio_wd wd2 = 0;
		1800	dREQ;
		1801
		1802	req->type = EIO_RENAME;
		1803	req_set_path1 (req, oldpath);
		1804	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1805	req->int2 = flags;
		1806	req->int3 = (long)wd2;
		1807
		1808	REQ_SEND;
		1809	}
		1810
		1811	void
938	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
939	PPCODE:	1813	PPCODE:
940	{	1814	{
941	dREQ;	1815	dREQ;
942		1816
943	req->type = EIO_MKNOD;	1817	req->type = EIO_MKNOD;
944	req->sv1 = newSVsv (pathname);
945	req->ptr1 = SvPVbyte_nolen (req->sv1);
946	req->int2 = (mode_t)mode;	1818	req->int2 = (mode_t)mode;
947	req->offs = dev;	1819	req->offs = dev;
		1820	req_set_path1 (req, pathname);
948		1821
949	REQ_SEND;	1822	REQ_SEND;
950	}	1823	}
951		1824
952	void	1825	void
		1826	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1827	ALIAS:
		1828	aio_mtouch = EIO_MTOUCH
		1829	aio_msync = EIO_MSYNC
		1830	PPCODE:
		1831	{
		1832	STRLEN svlen;
		1833	char *svptr = SvPVbyte (data, svlen);
		1834	UV len = SvUV (length);
		1835
		1836	if (flags < 0)
		1837	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1838
		1839	if (offset < 0)
		1840	offset += svlen;
		1841
		1842	if (offset < 0 || offset > svlen)
		1843	croak ("offset outside of scalar");
		1844
		1845	if (!SvOK (length) || len + offset > svlen)
		1846	len = svlen - offset;
		1847
		1848	{
		1849	dREQ;
		1850
		1851	req->type = ix;
		1852	req->sv2 = SvREFCNT_inc (data);
		1853	req->ptr2 = (char *)svptr + offset;
		1854	req->size = len;
		1855	req->int1 = flags;
		1856
		1857	REQ_SEND;
		1858	}
		1859	}
		1860
		1861	void
		1862	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1863	PPCODE:
		1864	{
		1865	STRLEN svlen;
		1866	char *svptr = SvPVbyte (data, svlen);
		1867	UV len = SvUV (length);
		1868
		1869	if (offset < 0)
		1870	offset += svlen;
		1871
		1872	if (offset < 0 || offset > svlen)
		1873	croak ("offset outside of scalar");
		1874
		1875	if (!SvOK (length) || len + offset > svlen)
		1876	len = svlen - offset;
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_MLOCK;
		1882	req->sv2 = SvREFCNT_inc (data);
		1883	req->ptr2 = (char *)svptr + offset;
		1884	req->size = len;
		1885
		1886	REQ_SEND;
		1887	}
		1888	}
		1889
		1890	void
		1891	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1892	PPCODE:
		1893	{
		1894	dREQ;
		1895
		1896	req->type = EIO_MLOCKALL;
		1897	req->int1 = flags;
		1898
		1899	REQ_SEND;
		1900	}
		1901
		1902	void
		1903	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1904	PPCODE:
		1905	{
		1906	int fd = s_fileno_croak (fh, 0);
		1907	dREQ;
		1908
		1909	req->type = EIO_CUSTOM;
		1910	req->sv1 = newSVsv (fh);
		1911	req->int1 = fd;
		1912
		1913	req->feed = fiemap;
		1914	#if HAVE_FIEMAP
		1915	/* keep our fingers crossed that the next two types are 64 bit */
		1916	req->offs = start;
		1917	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1918	req->int2 = flags;
		1919	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1920	#endif
		1921
		1922	REQ_SEND;
		1923	}
		1924
		1925	void
		1926	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1927	PPCODE:
		1928	{
		1929	char *svptr = 0;
		1930
		1931	sv_clear_foreign (data);
		1932
		1933	if (length) /* known length, directly read into scalar */
		1934	{
		1935	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1936	svptr = sv_grow (data, length + 1);
		1937	else if (SvCUR (data) < length)
		1938	croak ("length outside of scalar, and cannot grow");
		1939	else
		1940	svptr = SvPVbyte_nolen (data);
		1941	}
		1942
		1943	{
		1944	dREQ;
		1945
		1946	req->type = EIO_SLURP;
		1947	req_set_path1 (req, pathname);
		1948	req->offs = offset;
		1949	req->size = length;
		1950	req->sv2 = SvREFCNT_inc (data);
		1951	req->ptr2 = svptr;
		1952
		1953	if (!SvREADONLY (data))
		1954	{
		1955	SvREADONLY_on (data);
		1956	req->flags |= FLAG_SV2_RO_OFF;
		1957	}
		1958
		1959	REQ_SEND;
		1960	}
		1961	}
		1962
		1963	void
953	aio_busy (double delay, SV *callback=&PL_sv_undef)	1964	aio_busy (double delay, SV *callback = &PL_sv_undef)
954	PPCODE:	1965	PPCODE:
955	{	1966	{
956	dREQ;	1967	dREQ;
957		1968
958	req->type = EIO_BUSY;	1969	req->type = EIO_BUSY;
…		…
960		1971
961	REQ_SEND;	1972	REQ_SEND;
962	}	1973	}
963		1974
964	void	1975	void
965	aio_group (SV *callback=&PL_sv_undef)	1976	aio_group (SV *callback = &PL_sv_undef)
966	PROTOTYPE: ;$
967	PPCODE:	1977	PPCODE:
968	{	1978	{
969	dREQ;	1979	dREQ;
970		1980
971	req->type = EIO_GROUP;	1981	req->type = EIO_GROUP;
972		1982
		1983	PUTBACK;
973	req_submit (req);	1984	req_submit (req);
		1985	SPAGAIN;
		1986
974	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1987	XPUSHs (req_sv (req, aio_grp_stash));
975	}	1988	}
976		1989
977	void	1990	void
978	aio_nop (SV *callback=&PL_sv_undef)	1991	aio_nop (SV *callback = &PL_sv_undef)
979	ALIAS:	1992	ALIAS:
980	aio_nop = EIO_NOP	1993	aio_nop = EIO_NOP
981	aio_sync = EIO_SYNC	1994	aio_sync = EIO_SYNC
982	PPCODE:	1995	PPCODE:
983	{	1996	{
…		…
987		2000
988	REQ_SEND;	2001	REQ_SEND;
989	}	2002	}
990		2003
991	int	2004	int
992	aioreq_pri (int pri = 0)	2005	aioreq_pri (int pri = NO_INIT)
993	PROTOTYPE: ;$
994	CODE:	2006	CODE:
995	RETVAL = next_pri;	2007	RETVAL = next_pri;
996	if (items > 0)	2008	if (items > 0)
997	{	2009	{
998	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2010	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1010	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2022	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1011	next_pri = nice;	2023	next_pri = nice;
1012		2024
1013	void	2025	void
1014	flush ()	2026	flush ()
1015	PROTOTYPE:
1016	CODE:	2027	CODE:
1017	while (eio_nreqs ())	2028	while (eio_nreqs ())
1018	{	2029	{
1019	poll_wait ();	2030	poll_wait ();
1020	poll_cb ();	2031	poll_cb ();
1021	}	2032	}
1022		2033
1023	int	2034	int
1024	poll()	2035	poll ()
1025	PROTOTYPE:
1026	CODE:	2036	CODE:
1027	poll_wait ();	2037	poll_wait ();
1028	RETVAL = poll_cb ();	2038	RETVAL = poll_cb ();
1029	OUTPUT:	2039	OUTPUT:
1030	RETVAL	2040	RETVAL
1031		2041
1032	int	2042	int
1033	poll_fileno()	2043	poll_fileno ()
1034	PROTOTYPE:
1035	CODE:	2044	CODE:
1036	RETVAL = respipe [0];	2045	RETVAL = s_epipe_fd (&respipe);
1037	OUTPUT:	2046	OUTPUT:
1038	RETVAL	2047	RETVAL
1039		2048
1040	int	2049	int
1041	poll_cb(...)	2050	poll_cb (...)
1042	PROTOTYPE:	2051	PROTOTYPE:
1043	CODE:	2052	CODE:
1044	RETVAL = poll_cb ();	2053	RETVAL = poll_cb ();
1045	OUTPUT:	2054	OUTPUT:
1046	RETVAL	2055	RETVAL
1047		2056
1048	void	2057	void
1049	poll_wait()	2058	poll_wait ()
1050	PROTOTYPE:
1051	CODE:	2059	CODE:
1052	poll_wait ();	2060	poll_wait ();
1053		2061
1054	int	2062	int
1055	nreqs()	2063	nreqs ()
1056	PROTOTYPE:
1057	CODE:	2064	CODE:
1058	RETVAL = eio_nreqs ();	2065	RETVAL = eio_nreqs ();
1059	OUTPUT:	2066	OUTPUT:
1060	RETVAL	2067	RETVAL
1061		2068
1062	int	2069	int
1063	nready()	2070	nready ()
1064	PROTOTYPE:
1065	CODE:	2071	CODE:
1066	RETVAL = eio_nready ();	2072	RETVAL = eio_nready ();
1067	OUTPUT:	2073	OUTPUT:
1068	RETVAL	2074	RETVAL
1069		2075
1070	int	2076	int
1071	npending()	2077	npending ()
1072	PROTOTYPE:
1073	CODE:	2078	CODE:
1074	RETVAL = eio_npending ();	2079	RETVAL = eio_npending ();
1075	OUTPUT:	2080	OUTPUT:
1076	RETVAL	2081	RETVAL
1077		2082
1078	int	2083	int
1079	nthreads()	2084	nthreads ()
1080	PROTOTYPE:
1081	CODE:	2085	CODE:
1082	RETVAL = eio_nthreads ();	2086	RETVAL = eio_nthreads ();
1083	OUTPUT:	2087	OUTPUT:
1084	RETVAL	2088	RETVAL
1085		2089
		2090	int
		2091	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2092	CODE:
		2093	RETVAL = posix_fadvise (fh, offset, length, advice);
		2094	OUTPUT:
		2095	RETVAL
		2096
		2097	IV
		2098	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2099	CODE:
		2100	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2101	OUTPUT:
		2102	RETVAL
		2103
		2104	void
		2105	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2106	PPCODE:
		2107	sv_clear_foreign (scalar);
		2108	{
		2109	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2110	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2111	if (addr == (void *)-1)
		2112	XSRETURN_NO;
		2113
		2114	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2115
		2116	if (!(prot & PROT_WRITE))
		2117	SvREADONLY_on (scalar);
		2118
		2119	XSRETURN_YES;
		2120	}
		2121
		2122	void
		2123	munmap (SV *scalar)
		2124	CODE:
		2125	sv_clear_foreign (scalar);
		2126
		2127	SV *
		2128	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2129	CODE:
		2130	{
		2131	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2132	void *new;
		2133
		2134	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2135	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2136
		2137	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2138
		2139	RETVAL = &PL_sv_no;
		2140
		2141	if (new != (void *)-1)
		2142	{
		2143	RETVAL = new == (void *)mg->mg_ptr
		2144	? newSVpvn ("0 but true", 10)
		2145	: &PL_sv_yes;
		2146
		2147	mg->mg_ptr = (char *)new;
		2148	mg->mg_obj = (SV *)new_length;
		2149
		2150	SvPVX (scalar) = mg->mg_ptr;
		2151	SvCUR_set (scalar, new_length);
		2152	}
		2153	}
		2154	OUTPUT:
		2155	RETVAL
		2156
		2157	int
		2158	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2159	ALIAS:
		2160	mprotect = 1
		2161	CODE:
		2162	{
		2163	STRLEN svlen;
		2164	void *addr = SvPVbyte (scalar, svlen);
		2165	STRLEN len = SvUV (length);
		2166
		2167	if (offset < 0)
		2168	offset += svlen;
		2169
		2170	if (offset < 0 || offset > svlen)
		2171	croak ("offset outside of scalar");
		2172
		2173	if (!SvOK (length) || len + offset > svlen)
		2174	len = svlen - offset;
		2175
		2176	addr = (void *)(((intptr_t)addr) + offset);
		2177	eio_page_align (&addr, &len);
		2178
		2179	switch (ix)
		2180	{
		2181	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2182	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2183	}
		2184	}
		2185	OUTPUT:
		2186	RETVAL
		2187
		2188	int
		2189	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2190	CODE:
		2191	{
		2192	STRLEN svlen;
		2193	void *addr = SvPVbyte (scalar, svlen);
		2194	size_t len = SvUV (length);
		2195
		2196	if (offset < 0)
		2197	offset += svlen;
		2198
		2199	if (offset < 0 || offset > svlen)
		2200	croak ("offset outside of scalar");
		2201
		2202	if (!SvOK (length) || len + offset > svlen)
		2203	len = svlen - offset;
		2204
		2205	addr = (void *)(((intptr_t)addr) + offset);
		2206	eio_page_align (&addr, &len);
		2207	#if _POSIX_MEMLOCK_RANGE
		2208	RETVAL = munlock (addr, len);
		2209	#else
		2210	RETVAL = EIO_ENOSYS ();
		2211	#endif
		2212	}
		2213	OUTPUT:
		2214	RETVAL
		2215
		2216	int
		2217	munlockall ()
		2218	CODE:
		2219	#if _POSIX_MEMLOCK
		2220	munlockall ();
		2221	#else
		2222	RETVAL = EIO_ENOSYS ();
		2223	#endif
		2224	OUTPUT:
		2225	RETVAL
		2226
		2227	int
		2228	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2229	CODE:
		2230	{
		2231	#if HAVE_LINUX_SPLICE
		2232	loff_t off_in_, off_out_;
		2233	RETVAL = splice (
		2234	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2235	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2236	length, flags
		2237	);
		2238	#else
		2239	RETVAL = EIO_ENOSYS ();
		2240	#endif
		2241	}
		2242	OUTPUT:
		2243	RETVAL
		2244
		2245	int
		2246	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2247	CODE:
		2248	#if HAVE_LINUX_SPLICE
		2249	RETVAL = tee (rfh, wfh, length, flags);
		2250	#else
		2251	RETVAL = EIO_ENOSYS ();
		2252	#endif
		2253	OUTPUT:
		2254	RETVAL
		2255
		2256	int
		2257	pipesize (aio_rfd rfh, int new_size = -1)
		2258	PROTOTYPE: $;$
		2259	CODE:
		2260	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2261	if (new_size >= 0)
		2262	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2263	else
		2264	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2265	#else
		2266	errno = ENOSYS;
		2267	RETVAL = -1;
		2268	#endif
		2269	OUTPUT:
		2270	RETVAL
		2271
		2272	void
		2273	pipe2 (int flags = 0)
		2274	PROTOTYPE: ;$
		2275	PPCODE:
		2276	{
		2277	int fd[2];
		2278	int res;
		2279
		2280	if (flags)
		2281	#if HAVE_PIPE2
		2282	res = pipe2 (fd, flags);
		2283	#else
		2284	res = (errno = ENOSYS, -1);
		2285	#endif
		2286	else
		2287	res = pipe (fd);
		2288
		2289	if (!res)
		2290	{
		2291	EXTEND (SP, 2);
		2292	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2293	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2294	}
		2295	}
		2296
		2297	void
		2298	eventfd (unsigned int initval = 0, int flags = 0)
		2299	PPCODE:
		2300	{
		2301	int fd;
		2302	#if HAVE_EVENTFD
		2303	fd = eventfd (initval, flags);
		2304	#else
		2305	fd = (errno = ENOSYS, -1);
		2306	#endif
		2307
		2308	XPUSHs (newmortalFH (fd, O_RDWR));
		2309	}
		2310
		2311	void
		2312	timerfd_create (int clockid, int flags = 0)
		2313	PPCODE:
		2314	{
		2315	int fd;
		2316	#if HAVE_TIMERFD
		2317	fd = timerfd_create (clockid, flags);
		2318	#else
		2319	fd = (errno = ENOSYS, -1);
		2320	#endif
		2321
		2322	XPUSHs (newmortalFH (fd, O_RDWR));
		2323	}
		2324
		2325	void
		2326	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2327	PPCODE:
		2328	{
		2329	int fd = s_fileno_croak (fh, 0);
		2330	#if HAVE_TIMERFD
		2331	int res;
		2332	struct itimerspec its, ots;
		2333
		2334	ts_set (&its.it_interval, interval);
		2335	ts_set (&its.it_value , value);
		2336	res = timerfd_settime (fd, flags, &its, &ots);
		2337
		2338	if (!res)
		2339	{
		2340	EXTEND (SP, 2);
		2341	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2342	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2343	}
		2344	#else
		2345	errno = ENOSYS;
		2346	#endif
		2347	}
		2348
		2349	void
		2350	timerfd_gettime (SV *fh)
		2351	PPCODE:
		2352	{
		2353	int fd = s_fileno_croak (fh, 0);
		2354	#if HAVE_TIMERFD
		2355	int res;
		2356	struct itimerspec ots;
		2357	res = timerfd_gettime (fd, &ots);
		2358
		2359	if (!res)
		2360	{
		2361	EXTEND (SP, 2);
		2362	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2363	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2364	}
		2365	#else
		2366	errno = ENOSYS;
		2367	#endif
		2368	}
		2369
		2370	UV
		2371	get_fdlimit ()
		2372	CODE:
		2373	#if HAVE_RLIMITS
		2374	struct rlimit rl;
		2375	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2376	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2377	#endif
		2378	XSRETURN_UNDEF;
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	void
		2383	min_fdlimit (UV limit = 0x7fffffffU)
		2384	CODE:
		2385	{
		2386	#if HAVE_RLIMITS
		2387	struct rlimit rl;
		2388	rlim_t orig_rlim_max;
		2389	UV bit;
		2390
		2391	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2392	goto fail;
		2393
		2394	if (rl.rlim_cur == RLIM_INFINITY)
		2395	XSRETURN_YES;
		2396
		2397	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2398
		2399	if (rl.rlim_cur < limit)
		2400	{
		2401	rl.rlim_cur = limit;
		2402
		2403	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2404	rl.rlim_max = rl.rlim_cur;
		2405	}
		2406
		2407	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_YES;
		2409
		2410	if (errno == EPERM)
		2411	{
		2412	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2413	/* our limit overflows a system-wide limit */
		2414	/* try an adaptive algorithm, but do not lower the hardlimit */
		2415	rl.rlim_max = 0;
		2416	for (bit = 0x40000000U; bit; bit >>= 1)
		2417	{
		2418	rl.rlim_max |= bit;
		2419	rl.rlim_cur = rl.rlim_max;
		2420
		2421	/* nevr decrease the hard limit */
		2422	if (rl.rlim_max < orig_rlim_max)
		2423	break;
		2424
		2425	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2426	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2427	}
		2428
		2429	/* now, raise the soft limit to the max permitted */
		2430	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2431	{
		2432	rl.rlim_cur = rl.rlim_max;
		2433	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2434	errno = EPERM;
		2435	}
		2436	}
		2437	#endif
		2438	fail:
		2439	XSRETURN_UNDEF;
		2440	}
		2441
1086	void _on_next_submit (SV *cb)	2442	void _on_next_submit (SV *cb)
1087	CODE:	2443	CODE:
1088	SvREFCNT_dec (on_next_submit);	2444	SvREFCNT_dec (on_next_submit);
1089	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2445	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1090		2446
1091	PROTOTYPES: DISABLE	2447	PROTOTYPES: DISABLE
1092		2448
		2449	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2450
		2451	BOOT:
		2452	{
		2453	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2454	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2455	}
		2456
		2457	void
		2458	DESTROY (SV *self)
		2459	CODE:
		2460	{
		2461	aio_wd wd = SvAIO_WD (self);
		2462	#if HAVE_AT
		2463	{
		2464	SV *callback = &PL_sv_undef;
		2465	dREQ; /* clobbers next_pri :/ */
		2466	next_pri = req->pri; /* restore next_pri */
		2467	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2468	req->type = EIO_WD_CLOSE;
		2469	req->wd = wd;
		2470	REQ_SEND;
		2471	}
		2472	#else
		2473	eio_wd_close_sync (wd);
		2474	#endif
		2475	}
		2476
1093	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2477	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1094		2478
1095	void	2479	void
1096	cancel (aio_req_ornot req)	2480	cancel (aio_req_ornot req)
1097	CODE:	2481	CODE:
1098	eio_cancel (req);	2482	eio_cancel (req);
1099		2483
1100	void	2484	void
1101	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2485	cb (aio_req_ornot req, SV *callback = NO_INIT)
1102	PPCODE:	2486	PPCODE:
1103	{	2487	{
1104	if (GIMME_V != G_VOID)	2488	if (GIMME_V != G_VOID)
1105	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2489	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1106		2490
…		…
1151	AV *av;	2535	AV *av;
1152		2536
1153	grp->errorno = errno;	2537	grp->errorno = errno;
1154		2538
1155	av = newAV ();	2539	av = newAV ();
		2540	av_extend (av, items - 1);
1156		2541
1157	for (i = 1; i < items; ++i )	2542	for (i = 1; i < items; ++i )
1158	av_push (av, newSVsv (ST (i)));	2543	av_push (av, newSVsv (ST (i)));
1159		2544
1160	SvREFCNT_dec (grp->sv1);	2545	SvREFCNT_dec (grp->sv1);
…		…
1170	limit (aio_req grp, int limit)	2555	limit (aio_req grp, int limit)
1171	CODE:	2556	CODE:
1172	eio_grp_limit (grp, limit);	2557	eio_grp_limit (grp, limit);
1173		2558
1174	void	2559	void
1175	feed (aio_req grp, SV *callback=&PL_sv_undef)	2560	feed (aio_req grp, SV *callback = &PL_sv_undef)
1176	CODE:	2561	CODE:
1177	{	2562	{
1178	SvREFCNT_dec (grp->sv2);	2563	SvREFCNT_dec (grp->sv2);
1179	grp->sv2 = newSVsv (callback);	2564	grp->sv2 = newSVsv (callback);
1180	grp->feed = aio_grp_feed;	2565	grp->feed = aio_grp_feed;

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