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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.132 by root, Mon Oct 13 10:38:17 2008 UTC vs.
Revision 1.254 by root, Tue Feb 20 05:23:47 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	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
		36	#endif
		37
18	/* perl namespace pollution */	38	/* perl namespace pollution */
19	#undef VERSION	39	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		40
70	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	43	#undef readdir
73	#undef opendir	44	#undef opendir
74	#undef closedir	45	#undef closedir
75		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		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 "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
99	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
		125	typedef int aio_rfd; /* read file desriptor */
		126	typedef int aio_wfd; /* write file descriptor */
100		127
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		129
104	#define EIO_REQ_MEMBERS \	130	#define EIO_REQ_MEMBERS \
105	SV *callback; \	131	SV *callback; \
106	SV *sv1, *sv2; \	132	SV *sv1, *sv2; \
		133	SV *sv3, *sv4; \
107	STRLEN stroffset; \	134	STRLEN stroffset; \
108	SV *self;	135	SV *self;
109		136
110	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
111		138
…		…
114	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	144	#define EIO_DESTROY(req) req_destroy (req)
118		145
		146	#include "libeio/eio.c"
		147
		148	#if !HAVE_POSIX_FADVISE
		149	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		150	#endif
		151
		152	#if !HAVE_POSIX_MADVISE
		153	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		154	#endif
		155
		156	#ifndef MAP_ANONYMOUS
		157	# ifdef MAP_ANON
		158	# define MAP_ANONYMOUS MAP_ANON
		159	# else
		160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		161	# endif
		162	#endif
		163
		164	/* defines all sorts of constants to 0 unless they are already defined */
		165	/* also provides const_iv_ and const_niv_ macros for them */
		166	#include "def0.h"
		167
		168	#ifndef makedev
		169	# define makedev(maj,min) (((maj) << 8) | (min))
		170	#endif
		171	#ifndef major
		172	# define major(dev) ((dev) >> 8)
		173	#endif
		174	#ifndef minor
		175	# define minor(dev) ((dev) & 0xff)
		176	#endif
		177
		178	#if PAGESIZE <= 0
		179	# define PAGESIZE sysconf (_SC_PAGESIZE)
		180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#define FOREIGN_MAGIC PERL_MAGIC_ext
		194
		195	static int ecb_cold
		196	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		197	{
		198	int old_errno = errno;
		199	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		200	errno = old_errno;
		201
		202	mg->mg_obj = 0; /* just in case */
		203
		204	SvREADONLY_off (sv);
		205
		206	if (SvPVX (sv) != mg->mg_ptr)
		207	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		208
		209	SvCUR_set (sv, 0);
		210	SvPVX (sv) = 0;
		211	SvOK_off (sv);
		212
		213	return 0;
		214	}
		215
		216	static MGVTBL mmap_vtbl = {
		217	0, 0, 0, 0, mmap_free
		218	};
		219
		220	static int ecb_cold
		221	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	free (mg->mg_ptr);
		224	mg->mg_obj = 0; /* just in case */
		225
		226	SvREADONLY_off (sv);
		227
		228	if (SvPVX (sv) != mg->mg_ptr)
		229	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		230
		231	SvCUR_set (sv, 0);
		232	SvPVX (sv) = 0;
		233	SvOK_off (sv);
		234
		235	return 0;
		236	}
		237
		238	static MGVTBL sysfree_vtbl = {
		239	0, 0, 0, 0, sysfree_free
		240	};
		241
		242	/*****************************************************************************/
		243
		244	/* helper: set scalar to foreign ptr with custom free */
		245	static void
		246	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		247	{
		248	sv_force_normal (sv);
		249
		250	/* we store the length in mg_obj, as namlen is I32 :/ */
		251	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		252	->mg_obj = (SV *)length;
		253
		254	SvUPGRADE (sv, SVt_PV); /* nop... */
		255
		256	if (SvLEN (sv))
		257	Safefree (SvPVX (sv));
		258
		259	SvPVX (sv) = (char *)addr;
		260	SvCUR_set (sv, length);
		261	SvLEN_set (sv, 0);
		262	SvPOK_only (sv);
		263	}
		264
		265	static void
		266	sv_clear_foreign (SV *sv)
		267	{
		268	/* todo: iterate over magic and only free ours, but of course */
		269	/* the perl5porters will call that (correct) behaviour buggy */
		270	sv_unmagic (sv, FOREIGN_MAGIC);
		271	}
		272
		273	/*****************************************************************************/
		274
		275	static void
		276	fiemap (eio_req *req)
		277	{
		278	req->result = -1;
		279
		280	#if HAVE_FIEMAP
		281	/* assume some c99 */
		282	struct fiemap *fiemap = 0;
		283	size_t end_offset;
		284	int count = req->int3;
		285
		286	req->flags |= EIO_FLAG_PTR1_FREE;
		287
		288	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		289	/* increase in 3.5kb steps */
		290	if (count < 0)
		291	count = 8;
		292
		293	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		294	errno = ENOMEM;
		295	if (!fiemap)
		296	return;
		297
		298	req->ptr1 = fiemap;
		299
		300	fiemap->fm_start = req->offs;
		301	fiemap->fm_length = req->size;
		302	fiemap->fm_flags = req->int2;
		303	fiemap->fm_extent_count = count;
		304
		305	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		306	return;
		307
		308	if (req->int3 >= 0 /* not autosizing */
		309	|| !fiemap->fm_mapped_extents /* no more extents */
		310	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		311	goto done;
		312
		313	/* else we have to loop -
		314	* it would be tempting (actually I tried that first) to just query the
		315	* number of extents needed, but linux often feels like not returning all
		316	* extents, without telling us it left any out. this complicates
		317	* this quite a bit.
		318	*/
		319
		320	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		321
		322	for (;;)
		323	{
		324	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		325	char scratch[3072];
		326	struct fiemap *incmap = (struct fiemap *)scratch;
		327
		328	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		329	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		330	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		331	incmap->fm_flags = fiemap->fm_flags;
		332	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		335	return;
		336
		337	if (!incmap->fm_mapped_extents)
		338	goto done;
		339
		340	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		341	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		342	errno = ENOMEM;
		343	if (!fiemap)
		344	return;
		345
		346	req->ptr1 = fiemap;
		347
		348	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		349	{
		350	struct fiemap_extent *e = incmap->fm_extents + count;
		351
		352	if (e->fe_logical + e->fe_length >= end_offset)
		353	goto done;
		354
		355	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		356
		357	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		358	goto done;
		359
		360	}
		361	}
		362
		363	done:
		364	req->result = 0;
		365
		366	#else
		367	errno = ENOSYS;
		368	#endif
		369	}
		370
		371	/*****************************************************************************/
		372
119	enum {	373	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	374	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	375	};
122		376
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	377	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	378	typedef eio_req *aio_req_ornot;
		379	typedef eio_wd aio_wd;
127		380
128	static SV *on_next_submit;	381	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	382	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	383	static int max_outstanding;
131		384
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	385	static s_epipe respipe;
133		386
134	static void req_destroy (aio_req req);	387	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	388	static void req_cancel (aio_req req);
136		389
137	static void want_poll (void)	390	static void
		391	want_poll (void)
138	{	392	{
139	/* write a dummy byte to the pipe so fh becomes ready */	393	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	394	s_epipe_signal (&respipe);
141	}	395	}
142		396
143	static void done_poll (void)	397	static void
		398	done_poll (void)
144	{	399	{
145	/* read any signals sent by the worker threads */	400	/* read any signals sent by the worker threads */
146	char buf [4];	401	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	402	}
150		403
151	/* must be called at most once */	404	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	405	static SV *
		406	req_sv (aio_req req, HV *stash)
153	{	407	{
154	if (!req->self)	408	if (!req->self)
155	{	409	{
156	req->self = (SV *)newHV ();	410	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	411	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	412	}
159		413
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	414	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	415	}
162		416
163	static aio_req SvAIO_REQ (SV *sv)	417	static SV *
		418	newSVaio_wd (aio_wd wd)
		419	{
		420	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		421	}
		422
		423	static aio_req
		424	SvAIO_REQ (SV *sv)
164	{	425	{
165	MAGIC *mg;	426	MAGIC *mg;
166		427
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	428	if (!SvROK (sv)
		429	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		430	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		431	&& SvSTASH (SvRV (sv)) != aio_req_stash
		432	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	433	croak ("object of class IO::AIO::REQ expected");
169		434
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	435	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		436
172	return mg ? (aio_req)mg->mg_ptr : 0;	437	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	438	}
174		439
		440	static aio_wd
		441	SvAIO_WD (SV *sv)
		442	{
		443	if (!SvROK (sv)
		444	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		445	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		446	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		447
		448	return (aio_wd)(long)SvIVX (SvRV (sv));
		449	}
		450
		451	static SV *
		452	newmortalFH (int fd, int flags)
		453	{
		454	if (fd < 0)
		455	return &PL_sv_undef;
		456
		457	GV *gv = (GV *)sv_newmortal ();
		458	char sym[64];
		459	int symlen;
		460
		461	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		462	gv_init (gv, aio_stash, sym, symlen, 0);
		463
		464	symlen = snprintf (
		465	sym,
		466	sizeof (sym),
		467	"%s&=%d",
		468	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		469	fd
		470	);
		471
		472	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		473	? (SV *)gv : &PL_sv_undef;
		474	}
		475
		476	static void
175	static void aio_grp_feed (aio_req grp)	477	aio_grp_feed (aio_req grp)
176	{	478	{
177	if (grp->sv2 && SvOK (grp->sv2))	479	if (grp->sv2 && SvOK (grp->sv2))
178	{	480	{
179	dSP;	481	dSP;
180		482
181	ENTER;	483	ENTER;
182	SAVETMPS;	484	SAVETMPS;
183	PUSHMARK (SP);	485	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	486	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	487	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	488	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	489	SPAGAIN;
188	FREETMPS;	490	FREETMPS;
189	LEAVE;	491	LEAVE;
190	}	492	}
191	}	493	}
192		494
		495	static void
193	static void req_submit (eio_req *req)	496	req_submit (eio_req *req)
194	{	497	{
195	eio_submit (req);	498	eio_submit (req);
196		499
197	if (expect_false (on_next_submit))	500	if (expect_false (on_next_submit))
198	{	501	{
…		…
205	PUTBACK;	508	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	509	call_sv (cb, G_DISCARD | G_EVAL);
207	}	510	}
208	}	511	}
209		512
		513	static int
210	static int req_invoke (eio_req *req)	514	req_invoke (eio_req *req)
211	{	515	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	516	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	517	SvREADONLY_off (req->sv2);
216		518
217	if (!EIO_CANCELLED (req) && req->callback)	519	if (!EIO_CANCELLED (req) && req->callback)
218	{	520	{
		521	dSP;
		522	static SV *sv_result_cache; /* caches the result integer SV */
		523	SV *sv_result;
		524
219	ENTER;	525	ENTER;
220	SAVETMPS;	526	SAVETMPS;
221	PUSHMARK (SP);	527	PUSHMARK (SP);
222	EXTEND (SP, 1);	528	EXTEND (SP, 1);
223		529
		530	/* do not recreate the result IV from scratch each time */
		531	if (expect_true (sv_result_cache))
		532	{
		533	sv_result = sv_result_cache; sv_result_cache = 0;
		534	SvIV_set (sv_result, req->result);
		535	SvIOK_only (sv_result);
		536	}
		537	else
		538	{
		539	sv_result = newSViv (req->result);
		540	SvREADONLY_on (sv_result);
		541	}
		542
224	switch (req->type)	543	switch (req->type)
225	{	544	{
		545	case EIO_WD_OPEN:
		546	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		547	break;
		548
226	case EIO_READDIR:	549	case EIO_READDIR:
227	{	550	{
228	SV *rv = &PL_sv_undef;	551	SV *rv = &PL_sv_undef;
229		552
230	if (req->result >= 0)	553	if (req->result >= 0)
231	{	554	{
232	int i;	555	int i;
233	char *buf = req->ptr2;	556	char *names = (char *)req->ptr2;
		557	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	558	AV *av = newAV ();
235		559
236	av_extend (av, req->result - 1);	560	av_extend (av, req->result - 1);
237		561
238	for (i = 0; i < req->result; ++i)	562	for (i = 0; i < req->result; ++i)
239	{	563	{
240	SV *sv = newSVpv (buf, 0);	564	if (req->int1 & EIO_READDIR_DENTS)
		565	{
		566	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		567
		568	if (req->int1 & EIO_READDIR_CUSTOM2)
		569	{
		570	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		571	AV *avent = newAV ();
		572
		573	av_extend (avent, 2);
		574
		575	if (!sv_type [ent->type])
		576	{
		577	sv_type [ent->type] = newSViv (ent->type);
		578	SvREADONLY_on (sv_type [ent->type]);
		579	}
		580
		581	av_store (avent, 0, namesv);
		582	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		583	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		584
		585	av_store (av, i, newRV_noinc ((SV *)avent));
		586	}
		587	else
242	av_store (av, i, sv);	588	av_store (av, i, namesv);
		589
		590	++ent;
		591	}
		592	else
		593	{
		594	SV *name = newSVpv (names, 0);
		595	av_store (av, i, name);
243	buf += SvCUR (sv) + 1;	596	names += SvCUR (name) + 1;
		597	}
244	}	598	}
245		599
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	600	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	601	}
248		602
249	PUSHs (rv);	603	PUSHs (rv);
		604
		605	if (req->int1 & EIO_READDIR_CUSTOM1)
		606	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250	}	607	}
251	break;	608	break;
252		609
253	case EIO_OPEN:	610	case EIO_OPEN:
		611	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		612	break;
		613
		614	case EIO_STATVFS:
		615	case EIO_FSTATVFS:
254	{	616	{
255	/* convert fd to fh */
256	SV *fh = &PL_sv_undef;	617	SV *rv = &PL_sv_undef;
257		618
		619	#ifndef _WIN32
258	if (req->result >= 0)	620	if (req->result >= 0)
259	{	621	{
		622	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
260	GV *gv = (GV *)sv_newmortal ();	623	HV *hv = newHV ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	624	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
262	char sym [64];	625	* chooses to make it a struct.
263	int symlen;
264		626	*/
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	627	unsigned long fsid = 0;
266	gv_init (gv, stash, sym, symlen, 0);	628	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
267		629
268	symlen = snprintf (	630	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		631
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	632	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
277	fh = (SV *)gv;	633	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		634	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		635	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		636	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		637	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		638	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		639	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		640	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		641	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		642	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
278	}	643	}
		644	#endif
279		645
280	PUSHs (fh);	646	PUSHs (rv);
281	}	647	}
		648
282	break;	649	break;
283		650
284	case EIO_GROUP:	651	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	652	req->int1 = 2; /* mark group as finished */
286		653
…		…
298	case EIO_NOP:	665	case EIO_NOP:
299	case EIO_BUSY:	666	case EIO_BUSY:
300	break;	667	break;
301		668
302	case EIO_READLINK:	669	case EIO_READLINK:
		670	case EIO_REALPATH:
303	if (req->result > 0)	671	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	672	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	673	break;
306		674
307	case EIO_STAT:	675	case EIO_STAT:
308	case EIO_LSTAT:	676	case EIO_LSTAT:
309	case EIO_FSTAT:	677	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	678	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		679
311	PL_laststatval = req->result;	680	if (!(PL_laststatval = req->result))
		681	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	682	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	683
		684	PUSHs (sv_result);
314	break;	685	break;
315		686
		687	case EIO_SEEK:
		688	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		689	break;
		690
316	case EIO_READ:	691	case EIO_READ:
		692	{
317	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	693	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
318	*SvEND (req->sv2) = 0;	694	*SvEND (req->sv2) = 0;
319	PUSHs (sv_2mortal (newSViv (req->result)));	695	SvPOK_only (req->sv2);
		696	SvSETMAGIC (req->sv2);
		697	PUSHs (sv_result);
		698	}
320	break;	699	break;
321		700
322	case EIO_DUP2:	701	case EIO_SLURP:
		702	{
		703	if (req->result >= 0)
		704	{
		705	/* if length was originally not known, we steal the malloc'ed memory */
		706	if (req->flags & EIO_FLAG_PTR2_FREE)
		707	{
		708	req->flags &= ~EIO_FLAG_PTR2_FREE;
		709	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		710	}
		711	else
		712	{
		713	SvCUR_set (req->sv2, req->result);
		714	*SvEND (req->sv2) = 0;
		715	SvPOK_only (req->sv2);
		716	}
		717
		718	SvSETMAGIC (req->sv2);
		719	}
		720
		721	PUSHs (sv_result);
		722	}
		723	break;
		724
		725	case EIO_CUSTOM:
		726	if (req->feed == fiemap)
		727	{
		728	#if HAVE_FIEMAP
		729	if (!req->result)
		730	{
		731	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		732
		733	if (fiemap->fm_extent_count)
		734	{
		735	AV *av = newAV ();
		736	int i;
		737
		738	while (fiemap->fm_mapped_extents)
		739	{
		740	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		741	AV *ext_av = newAV ();
		742
		743	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		744	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		745	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		746	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		747
		748	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		749	}
		750
		751	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		752	}
		753	else
		754	{
		755	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		756	PUSHs (sv_result);
		757	}
		758	}
		759	#endif
		760	}
		761	else
		762	PUSHs (sv_result);
		763	break;
		764
		765	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
323	if (req->result > 0)	766	if (req->result > 0)
324	req->result = 0;	767	SvIV_set (sv_result, 0);
325	/* FALLTHROUGH */	768	/* FALLTHROUGH */
326		769
327	default:	770	default:
328	PUSHs (sv_2mortal (newSViv (req->result)));	771	PUSHs (sv_result);
329	break;	772	break;
330	}	773	}
331		774
332	errno = req->errorno;	775	errno = req->errorno;
333		776
334	PUTBACK;	777	PUTBACK;
335	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	778	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336	SPAGAIN;	779	SPAGAIN;
337		780
		781	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		782	SvREFCNT_dec (sv_result);
		783	else
		784	sv_result_cache = sv_result;
		785
338	FREETMPS;	786	FREETMPS;
339	LEAVE;	787	LEAVE;
340		788
341	PUTBACK;	789	PUTBACK;
342	}	790	}
343		791
344	return !!SvTRUE (ERRSV);	792	return !!SvTRUE (ERRSV);
345	}	793	}
346		794
		795	static void
347	static void req_destroy (aio_req req)	796	req_destroy (aio_req req)
348	{	797	{
349	if (req->self)	798	if (req->self)
350	{	799	{
351	sv_unmagic (req->self, PERL_MAGIC_ext);	800	sv_unmagic (req->self, PERL_MAGIC_ext);
352	SvREFCNT_dec (req->self);	801	SvREFCNT_dec (req->self);
353	}	802	}
354		803
355	SvREFCNT_dec (req->sv1);	804	SvREFCNT_dec (req->sv1);
356	SvREFCNT_dec (req->sv2);	805	SvREFCNT_dec (req->sv2);
		806	SvREFCNT_dec (req->sv3);
		807	SvREFCNT_dec (req->sv4);
357	SvREFCNT_dec (req->callback);	808	SvREFCNT_dec (req->callback);
358		809
359	Safefree (req);	810	free (req);
360	}	811	}
361		812
		813	static void
362	static void req_cancel_subs (aio_req grp)	814	req_cancel_subs (aio_req grp)
363	{	815	{
364	aio_req sub;
365
366	if (grp->type != EIO_GROUP)	816	if (grp->type != EIO_GROUP)
367	return;	817	return;
368		818
369	SvREFCNT_dec (grp->sv2);	819	SvREFCNT_dec (grp->sv2);
370	grp->sv2 = 0;	820	grp->sv2 = 0;
371		821
372	eio_grp_cancel (grp);	822	eio_grp_cancel (grp);
373	}	823	}
374		824
375	#ifdef USE_SOCKETS_AS_HANDLES	825	static void ecb_cold
376	# define TO_SOCKET(x) (win32_get_osfhandle (x))	826	create_respipe (void)
377	#else	827	{
378	# define TO_SOCKET(x) (x)	828	if (s_epipe_renew (&respipe))
379	#endif	829	croak ("IO::AIO: unable to initialize result pipe");
		830	}
380		831
381	static void	832	static void
382	create_respipe (void)	833	poll_wait (void)
383	{	834	{
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 ())	835	while (eio_nreqs ())
424	{	836	{
425	int size;	837	int size;
426		838
427	X_LOCK (reslock);	839	X_LOCK (EIO_POOL->reslock);
428	size = res_queue.size;	840	size = EIO_POOL->res_queue.size;
429	X_UNLOCK (reslock);	841	X_UNLOCK (EIO_POOL->reslock);
430		842
431	if (size)	843	if (size)
432	return;	844	return;
433		845
434	etp_maybe_start_thread ();	846	etp_maybe_start_thread (EIO_POOL);
435		847
436	FD_ZERO (&rfd);	848	s_epipe_wait (&respipe);
437	FD_SET (respipe [0], &rfd);
438
439	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440	}	849	}
441	}	850	}
442		851
443	static int poll_cb (void)	852	static int
		853	poll_cb (void)
444	{	854	{
445	for (;;)	855	for (;;)
446	{	856	{
447	int res = eio_poll ();	857	int res = eio_poll ();
448		858
…		…
454		864
455	poll_wait ();	865	poll_wait ();
456	}	866	}
457	}	867	}
458		868
459	static void atfork_child (void)	869	static void ecb_cold
		870	reinit (void)
460	{	871	{
461	create_respipe ();	872	create_respipe ();
		873
		874	if (eio_init (want_poll, done_poll) < 0)
		875	croak ("IO::AIO: unable to initialise eio library");
462	}	876	}
		877
		878	/*****************************************************************************/
463		879
464	static SV *	880	static SV *
465	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
466	{	882	{
467	HV *st;	883	SvGETMAGIC (cb_sv);
468	GV *gvp;	884	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		885	}
		886
		887	static aio_req ecb_noinline
		888	dreq (SV *callback)
		889	{
469	CV *cv;	890	SV *cb_cv;
		891	aio_req req;
		892	int req_pri = next_pri;
		893	next_pri = EIO_PRI_DEFAULT;
470		894
471	if (!SvOK (cb_sv))	895	cb_cv = get_cb (callback);
		896
		897	req = calloc (sizeof (*req), 1);
		898	if (!req)
		899	croak ("out of memory during eio_req allocation");
		900
		901	req->callback = SvREFCNT_inc (cb_cv);
		902	req->pri = req_pri;
		903
472	return 0;	904	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	}	905	}
481		906
482	#define dREQ \	907	#define dREQ \
483	SV *cb_cv; \	908	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		909
497	#define REQ_SEND \	910	#define REQ_SEND \
498	PUTBACK; \	911	PUTBACK; \
499	req_submit (req); \	912	req_submit (req); \
500	SPAGAIN; \	913	SPAGAIN; \
501	\	914	\
502	if (GIMME_V != G_VOID) \	915	if (GIMME_V != G_VOID) \
503	XPUSHs (req_sv (req, AIO_REQ_KLASS));	916	XPUSHs (req_sv (req, aio_req_stash));
504		917
		918	ecb_inline void
		919	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		920	{
		921	if (expect_false (SvROK (path)))
		922	{
		923	SV *rv = SvRV (path);
		924	SV *wdob;
		925
		926	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		927	{
		928	path = AvARRAY (rv)[1];
		929	wdob = AvARRAY (rv)[0];
		930
		931	if (SvOK (wdob))
		932	{
		933	*wd = SvAIO_WD (wdob);
		934	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		935	}
		936	else
		937	*wd = EIO_INVALID_WD;
		938	}
		939	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		940	{
		941	*wd = (aio_wd)(long)SvIVX (rv);
		942	*wdsv = SvREFCNT_inc_NN (rv);
		943	*ptr = ".";
		944	return; /* path set to "." */
		945	}
		946	else
		947	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		948	}
		949
		950	*pathsv = newSVsv (path);
		951	*ptr = SvPVbyte_nolen (*pathsv);
		952	}
		953
		954	static void ecb_noinline
		955	req_set_path1 (aio_req req, SV *path)
		956	{
		957	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		958	}
		959
		960	static void ecb_noinline
		961	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		962	{
		963	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		964
		965	switch (SvTYPE (rv))
		966	{
		967	case SVt_PVIO:
		968	case SVt_PVLV:
		969	case SVt_PVGV:
		970	req->type = type_fh;
		971	req->sv1 = newSVsv (fh_or_path);
		972	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		973	break;
		974
		975	default:
		976	req->type = type_path;
		977	req_set_path1 (req, fh_or_path);
		978	break;
		979	}
		980	}
		981
		982	/*****************************************************************************/
		983
		984	static void
		985	ts_set (struct timespec *ts, NV value)
		986	{
		987	ts->tv_sec = value;
		988	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		989	}
		990
		991	static NV
		992	ts_get (const struct timespec *ts)
		993	{
		994	return ts->tv_sec + ts->tv_nsec * 1e-9;
		995	}
		996
		997	/*****************************************************************************/
		998
		999	XS(boot_IO__AIO) ecb_cold;
		1000
505	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
506		1002
507	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
508		1004
509	BOOT:	1005	BOOT:
510	{	1006	{
		1007	static const struct {
		1008	const char *name;
		1009	IV iv;
		1010	} *civ, const_iv[] = {
		1011	# define const_niv(name, value) { # name, (IV) value },
		1012	# define const_iv(name) { # name, (IV) name },
		1013	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1014
		1015	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1016	/* the first block can be undef if missing */
		1017	const_iv (ENOSYS)
		1018	const_iv (EXDEV)
		1019	const_iv (EBADR)
		1020
		1021	/* for lseek */
		1022	const_iv (SEEK_DATA)
		1023	const_iv (SEEK_HOLE)
		1024
		1025	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1026	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1027	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1028	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1029	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1030	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1031
		1032	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1033	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1034	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1035	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1036	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1037
		1038	/* the second block will be 0 when missing */
		1039	const_iv (O_RDONLY)
		1040	const_iv (O_WRONLY)
		1041	const_iv (O_RDWR)
		1042	const_iv (O_CREAT)
		1043	const_iv (O_TRUNC)
		1044	const_iv (O_EXCL)
		1045	const_iv (O_APPEND)
		1046
		1047	const_iv (O_ASYNC)
		1048	const_iv (O_DIRECT)
		1049	const_iv (O_NOATIME)
		1050
		1051	const_iv (O_CLOEXEC)
		1052	const_iv (O_NOCTTY)
		1053	const_iv (O_NOFOLLOW)
		1054	const_iv (O_NONBLOCK)
		1055	const_iv (O_EXEC)
		1056	const_iv (O_SEARCH)
		1057	const_iv (O_DIRECTORY)
		1058	const_iv (O_DSYNC)
		1059	const_iv (O_RSYNC)
		1060	const_iv (O_SYNC)
		1061	const_iv (O_PATH)
		1062	const_iv (O_TMPFILE)
		1063	const_iv (O_TTY_INIT)
		1064
		1065	const_iv (S_IFIFO)
		1066	const_iv (S_IFCHR)
		1067	const_iv (S_IFBLK)
		1068	const_iv (S_IFLNK)
		1069	const_iv (S_IFREG)
		1070	const_iv (S_IFDIR)
		1071	const_iv (S_IFWHT)
		1072	const_iv (S_IFSOCK)
		1073	const_iv (S_IFMT)
		1074
		1075	const_iv (ST_RDONLY)
		1076	const_iv (ST_NOSUID)
		1077	const_iv (ST_NODEV)
		1078	const_iv (ST_NOEXEC)
		1079	const_iv (ST_SYNCHRONOUS)
		1080	const_iv (ST_MANDLOCK)
		1081	const_iv (ST_WRITE)
		1082	const_iv (ST_APPEND)
		1083	const_iv (ST_IMMUTABLE)
		1084	const_iv (ST_NOATIME)
		1085	const_iv (ST_NODIRATIME)
		1086	const_iv (ST_RELATIME)
		1087
		1088	const_iv (PROT_NONE)
		1089	const_iv (PROT_EXEC)
		1090	const_iv (PROT_READ)
		1091	const_iv (PROT_WRITE)
		1092
		1093	const_iv (MAP_PRIVATE)
		1094	const_iv (MAP_SHARED)
		1095	const_iv (MAP_FIXED)
		1096	const_iv (MAP_ANONYMOUS)
		1097
		1098	/* linuxish */
		1099	const_iv (MAP_LOCKED)
		1100	const_iv (MAP_NORESERVE)
		1101	const_iv (MAP_POPULATE)
		1102	const_iv (MAP_NONBLOCK)
		1103	const_iv (MAP_GROWSDOWN)
		1104	const_iv (MAP_32BIT)
		1105	const_iv (MAP_HUGETLB)
		1106	const_iv (MAP_STACK)
		1107
		1108	const_iv (F_DUPFD_CLOEXEC)
		1109
		1110	const_iv (F_OFD_GETLK)
		1111	const_iv (F_OFD_SETLK)
		1112	const_iv (F_OFD_GETLKW)
		1113
		1114	const_iv (FIFREEZE)
		1115	const_iv (FITHAW)
		1116	const_iv (FITRIM)
		1117	const_iv (FICLONE)
		1118	const_iv (FICLONERANGE)
		1119	const_iv (FIDEDUPERANGE)
		1120
		1121	const_iv (FS_IOC_GETFLAGS)
		1122	const_iv (FS_IOC_SETFLAGS)
		1123	const_iv (FS_IOC_GETVERSION)
		1124	const_iv (FS_IOC_SETVERSION)
		1125	const_iv (FS_IOC_FIEMAP)
		1126	const_iv (FS_IOC_FSGETXATTR)
		1127	const_iv (FS_IOC_FSSETXATTR)
		1128	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1129	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1130	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1131
		1132	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1133
		1134	const_iv (FS_SECRM_FL)
		1135	const_iv (FS_UNRM_FL)
		1136	const_iv (FS_COMPR_FL)
		1137	const_iv (FS_SYNC_FL)
		1138	const_iv (FS_IMMUTABLE_FL)
		1139	const_iv (FS_APPEND_FL)
		1140	const_iv (FS_NODUMP_FL)
		1141	const_iv (FS_NOATIME_FL)
		1142	const_iv (FS_DIRTY_FL)
		1143	const_iv (FS_COMPRBLK_FL)
		1144	const_iv (FS_NOCOMP_FL)
		1145	const_iv (FS_ENCRYPT_FL)
		1146	const_iv (FS_BTREE_FL)
		1147	const_iv (FS_INDEX_FL)
		1148	const_iv (FS_JOURNAL_DATA_FL)
		1149	const_iv (FS_NOTAIL_FL)
		1150	const_iv (FS_DIRSYNC_FL)
		1151	const_iv (FS_TOPDIR_FL)
		1152	const_iv (FS_FL_USER_MODIFIABLE)
		1153
		1154	const_iv (FS_XFLAG_REALTIME)
		1155	const_iv (FS_XFLAG_PREALLOC)
		1156	const_iv (FS_XFLAG_IMMUTABLE)
		1157	const_iv (FS_XFLAG_APPEND)
		1158	const_iv (FS_XFLAG_SYNC)
		1159	const_iv (FS_XFLAG_NOATIME)
		1160	const_iv (FS_XFLAG_NODUMP)
		1161	const_iv (FS_XFLAG_RTINHERIT)
		1162	const_iv (FS_XFLAG_PROJINHERIT)
		1163	const_iv (FS_XFLAG_NOSYMLINKS)
		1164	const_iv (FS_XFLAG_EXTSIZE)
		1165	const_iv (FS_XFLAG_EXTSZINHERIT)
		1166	const_iv (FS_XFLAG_NODEFRAG)
		1167	const_iv (FS_XFLAG_FILESTREAM)
		1168	const_iv (FS_XFLAG_DAX)
		1169	const_iv (FS_XFLAG_HASATTR)
		1170
		1171	const_iv (FIEMAP_FLAG_SYNC)
		1172	const_iv (FIEMAP_FLAG_XATTR)
		1173	const_iv (FIEMAP_FLAGS_COMPAT)
		1174	const_iv (FIEMAP_EXTENT_LAST)
		1175	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1176	const_iv (FIEMAP_EXTENT_DELALLOC)
		1177	const_iv (FIEMAP_EXTENT_ENCODED)
		1178	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1179	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1180	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1181	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1182	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1183	const_iv (FIEMAP_EXTENT_MERGED)
		1184	const_iv (FIEMAP_EXTENT_SHARED)
		1185
		1186	const_iv (SPLICE_F_MOVE)
		1187	const_iv (SPLICE_F_NONBLOCK)
		1188	const_iv (SPLICE_F_MORE)
		1189	const_iv (SPLICE_F_GIFT)
		1190
		1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
		1193	const_iv (EFD_SEMAPHORE)
		1194
		1195	const_iv (CLOCK_REALTIME)
		1196	const_iv (CLOCK_MONOTONIC)
		1197	const_iv (CLOCK_BOOTTIME)
		1198	const_iv (CLOCK_REALTIME_ALARM)
		1199	const_iv (CLOCK_BOOTTIME_ALARM)
		1200
		1201	const_iv (TFD_NONBLOCK)
		1202	const_iv (TFD_CLOEXEC)
		1203
		1204	const_iv (TFD_TIMER_ABSTIME)
		1205	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1206
		1207	/* these are libeio constants, and are independent of gendef0 */
		1208	const_eio (SEEK_SET)
		1209	const_eio (SEEK_CUR)
		1210	const_eio (SEEK_END)
		1211
		1212	const_eio (MCL_FUTURE)
		1213	const_eio (MCL_CURRENT)
		1214
		1215	const_eio (MS_ASYNC)
		1216	const_eio (MS_INVALIDATE)
		1217	const_eio (MS_SYNC)
		1218
		1219	const_eio (MT_MODIFY)
		1220
		1221	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1222	const_eio (SYNC_FILE_RANGE_WRITE)
		1223	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1224
		1225	const_eio (FALLOC_FL_KEEP_SIZE)
		1226	const_eio (FALLOC_FL_PUNCH_HOLE)
		1227	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1228	const_eio (FALLOC_FL_ZERO_RANGE)
		1229	const_eio (FALLOC_FL_INSERT_RANGE)
		1230	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1231
		1232	const_eio (RENAME_NOREPLACE)
		1233	const_eio (RENAME_EXCHANGE)
		1234	const_eio (RENAME_WHITEOUT)
		1235
		1236	const_eio (READDIR_DENTS)
		1237	const_eio (READDIR_DIRS_FIRST)
		1238	const_eio (READDIR_STAT_ORDER)
		1239	const_eio (READDIR_FOUND_UNKNOWN)
		1240
		1241	const_eio (DT_UNKNOWN)
		1242	const_eio (DT_FIFO)
		1243	const_eio (DT_CHR)
		1244	const_eio (DT_DIR)
		1245	const_eio (DT_BLK)
		1246	const_eio (DT_REG)
		1247	const_eio (DT_LNK)
		1248	const_eio (DT_SOCK)
		1249	const_eio (DT_WHT)
		1250	};
		1251
511	stash = gv_stashpv ("IO::AIO", 1);	1252	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1253	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1254	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1255	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
512		1256
513	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1257	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
514	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1258	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
515	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
516	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
517	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
518	#ifndef _WIN32
519	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
520	#endif
521		1259
522	create_respipe ();	1260	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
523		1261
524	if (eio_init (want_poll, done_poll) < 0)	1262	reinit ();
525	croak ("IO::AIO: unable to initialise eio library");
526
527	/* atfork child called in fifo order, so before eio's handler */
528	X_THREAD_ATFORK (0, 0, atfork_child);
529	}	1263	}
530		1264
531	void	1265	void
		1266	reinit ()
		1267	PROTOTYPE:
		1268
		1269	void
532	max_poll_reqs (int nreqs)	1270	max_poll_reqs (unsigned int nreqs)
533	PROTOTYPE: $	1271	PROTOTYPE: $
534	CODE:	1272	CODE:
535	eio_set_max_poll_reqs (nreqs);	1273	eio_set_max_poll_reqs (nreqs);
536		1274
537	void	1275	void
…		…
539	PROTOTYPE: $	1277	PROTOTYPE: $
540	CODE:	1278	CODE:
541	eio_set_max_poll_time (nseconds);	1279	eio_set_max_poll_time (nseconds);
542		1280
543	void	1281	void
544	min_parallel (int nthreads)	1282	min_parallel (unsigned int nthreads)
545	PROTOTYPE: $	1283	PROTOTYPE: $
546	CODE:	1284	CODE:
547	eio_set_min_parallel (nthreads);	1285	eio_set_min_parallel (nthreads);
548		1286
549	void	1287	void
550	max_parallel (int nthreads)	1288	max_parallel (unsigned int nthreads)
551	PROTOTYPE: $	1289	PROTOTYPE: $
552	CODE:	1290	CODE:
553	eio_set_max_parallel (nthreads);	1291	eio_set_max_parallel (nthreads);
554		1292
555	void	1293	void
556	max_idle (int nthreads)	1294	max_idle (unsigned int nthreads)
557	PROTOTYPE: $	1295	PROTOTYPE: $
558	CODE:	1296	CODE:
559	eio_set_max_idle (nthreads);	1297	eio_set_max_idle (nthreads);
560		1298
561	void	1299	void
		1300	idle_timeout (unsigned int seconds)
		1301	PROTOTYPE: $
		1302	CODE:
		1303	eio_set_idle_timeout (seconds);
		1304
		1305	void
562	max_outstanding (int maxreqs)	1306	max_outstanding (unsigned int maxreqs)
563	PROTOTYPE: $	1307	PROTOTYPE: $
564	CODE:	1308	CODE:
565	max_outstanding = maxreqs;	1309	max_outstanding = maxreqs;
566		1310
567	void	1311	void
568	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1312	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
569	PROTOTYPE: $$$;$
570	PPCODE:	1313	PPCODE:
571	{	1314	{
572	dREQ;	1315	dREQ;
573		1316
		1317	req->type = EIO_WD_OPEN;
		1318	req_set_path1 (req, pathname);
		1319
		1320	REQ_SEND;
		1321	}
		1322
		1323	void
		1324	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1325	PPCODE:
		1326	{
		1327	dREQ;
		1328
574	req->type = EIO_OPEN;	1329	req->type = EIO_OPEN;
575	req->sv1 = newSVsv (pathname);	1330	req_set_path1 (req, pathname);
576	req->ptr1 = SvPVbyte_nolen (req->sv1);
577	req->int1 = flags;	1331	req->int1 = flags;
578	req->int2 = mode;	1332	req->int2 = mode;
579		1333
580	REQ_SEND;	1334	REQ_SEND;
581	}	1335	}
582		1336
583	void	1337	void
584	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1338	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
585	PROTOTYPE: $;$
586	ALIAS:	1339	ALIAS:
587	aio_fsync = EIO_FSYNC	1340	aio_fsync = EIO_FSYNC
588	aio_fdatasync = EIO_FDATASYNC	1341	aio_fdatasync = EIO_FDATASYNC
		1342	aio_syncfs = EIO_SYNCFS
589	PPCODE:	1343	PPCODE:
590	{	1344	{
		1345	int fd = s_fileno_croak (fh, 0);
591	dREQ;	1346	dREQ;
592		1347
593	req->type = ix;	1348	req->type = ix;
594	req->sv1 = newSVsv (fh);	1349	req->sv1 = newSVsv (fh);
595	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1350	req->int1 = fd;
596		1351
597	REQ_SEND (req);	1352	REQ_SEND;
598	}	1353	}
599		1354
600	void	1355	void
601	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1356	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
602	PROTOTYPE: $;$
603	PPCODE:	1357	PPCODE:
604	{	1358	{
605	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1359	int fd = s_fileno_croak (fh, 0);
606	dREQ;	1360	dREQ;
607		1361
608	if (close_pipe < 0)	1362	req->type = EIO_SYNC_FILE_RANGE;
		1363	req->sv1 = newSVsv (fh);
		1364	req->int1 = fd;
		1365	req->offs = offset;
		1366	req->size = nbytes;
		1367	req->int2 = flags;
		1368
		1369	REQ_SEND;
		1370	}
		1371
		1372	void
		1373	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1374	PPCODE:
		1375	{
		1376	int fd = s_fileno_croak (fh, 0);
		1377	dREQ;
		1378
		1379	req->type = EIO_FALLOCATE;
		1380	req->sv1 = newSVsv (fh);
		1381	req->int1 = fd;
		1382	req->int2 = mode;
		1383	req->offs = offset;
		1384	req->size = len;
		1385
		1386	REQ_SEND;
		1387	}
		1388
		1389	void
		1390	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1391	PPCODE:
		1392	{
		1393	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1394	int fd = s_fileno_croak (fh, 0);
		1395	dREQ;
		1396
		1397	if (expect_false (close_fd < 0))
609	{	1398	{
610	int pipefd [2];	1399	int pipefd [2];
611		1400
		1401	if (
		1402	#ifdef _WIN32
		1403	_pipe (pipefd, 1, _O_BINARY) < 0
		1404	#else
612	if (pipe (pipefd) < 0	1405	pipe (pipefd) < 0
613	|| close (pipefd [1]) < 0
614	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1406	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1407	#endif
		1408	|| close (pipefd [1]) < 0
		1409	)
615	abort (); /*D*/	1410	abort (); /*D*/
616		1411
617	close_pipe = pipefd [0];	1412	close_fd = pipefd [0];
618	}	1413	}
619		1414
620	req->type = EIO_DUP2;	1415	req->type = EIO_DUP2;
621	req->int1 = close_pipe;	1416	req->int1 = close_fd;
622	req->sv2 = newSVsv (fh);	1417	req->sv2 = newSVsv (fh);
623	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1418	req->int2 = fd;
624		1419
625	REQ_SEND (req);	1420	REQ_SEND;
626	}	1421	}
627		1422
628	void	1423	void
		1424	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1425	PPCODE:
		1426	{
		1427	int fd = s_fileno_croak (fh, 0);
		1428	dREQ;
		1429
		1430	req->type = EIO_SEEK;
		1431	req->sv1 = newSVsv (fh);
		1432	req->int1 = fd;
		1433	req->offs = SvVAL64 (offset);
		1434	req->int2 = whence;
		1435
		1436	REQ_SEND;
		1437	}
		1438
		1439	void
629	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1440	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
630	ALIAS:	1441	ALIAS:
631	aio_read = EIO_READ	1442	aio_read = EIO_READ
632	aio_write = EIO_WRITE	1443	aio_write = EIO_WRITE
633	PROTOTYPE: $$$$$;$
634	PPCODE:	1444	PPCODE:
635	{	1445	{
636	STRLEN svlen;	1446	STRLEN svlen;
		1447	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
637	char *svptr = SvPVbyte (data, svlen);	1448	char *svptr = SvPVbyte (data, svlen);
638	UV len = SvUV (length);	1449	UV len = SvUV (length);
639
640	SvUPGRADE (data, SVt_PV);
641	SvPOK_on (data);
642		1450
643	if (dataoffset < 0)	1451	if (dataoffset < 0)
644	dataoffset += svlen;	1452	dataoffset += svlen;
645		1453
646	if (dataoffset < 0 || dataoffset > svlen)	1454	if (dataoffset < 0 || dataoffset > svlen)
…		…
652	if (!SvOK (length) || len + dataoffset > svlen)	1460	if (!SvOK (length) || len + dataoffset > svlen)
653	len = svlen - dataoffset;	1461	len = svlen - dataoffset;
654	}	1462	}
655	else	1463	else
656	{	1464	{
657	/* read: grow scalar as necessary */	1465	/* read: check type and grow scalar as necessary */
		1466	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
658	svptr = SvGROW (data, len + dataoffset + 1);	1467	svptr = sv_grow (data, len + dataoffset + 1);
		1468	else if (SvCUR (data) < len + dataoffset)
		1469	croak ("length + dataoffset outside of scalar, and cannot grow");
659	}	1470	}
660
661	if (len < 0)
662	croak ("length must not be negative");
663		1471
664	{	1472	{
665	dREQ;	1473	dREQ;
666		1474
667	req->type = ix;	1475	req->type = ix;
668	req->sv1 = newSVsv (fh);	1476	req->sv1 = newSVsv (fh);
669	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1477	req->int1 = fd;
670	: IoOFP (sv_2io (fh)));
671	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1478	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
672	req->size = len;	1479	req->size = len;
673	req->sv2 = SvREFCNT_inc (data);	1480	req->sv2 = SvREFCNT_inc (data);
674	req->ptr2 = (char *)svptr + dataoffset;	1481	req->ptr2 = (char *)svptr + dataoffset;
675	req->stroffset = dataoffset;	1482	req->stroffset = dataoffset;
…		…
683	REQ_SEND;	1490	REQ_SEND;
684	}	1491	}
685	}	1492	}
686		1493
687	void	1494	void
688	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1495	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
689	PROTOTYPE: $$;$	1496	ALIAS:
		1497	aio_ioctl = EIO_IOCTL
		1498	aio_fcntl = EIO_FCNTL
690	PPCODE:	1499	PPCODE:
691	{	1500	{
692	SV *data;	1501	int fd = s_fileno_croak (fh, 0);
		1502	char *svptr;
		1503
		1504	if (SvPOK (arg) || !SvNIOK (arg))
		1505	{
		1506	STRLEN svlen;
		1507	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1508	#ifdef IOCPARM_LEN
		1509	STRLEN need = IOCPARM_LEN (request);
		1510	#else
		1511	STRLEN need = 256;
		1512	#endif
		1513
		1514	if (svlen < need)
		1515	svptr = SvGROW (arg, need);
		1516	}
		1517	else
		1518	svptr = (char *)SvIV (arg);
		1519
		1520	{
		1521	dREQ;
		1522
		1523	req->type = ix;
		1524	req->sv1 = newSVsv (fh);
		1525	req->int1 = fd;
		1526	req->int2 = (long)request;
		1527	req->sv2 = SvREFCNT_inc (arg);
		1528	req->ptr2 = svptr;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1536	ALIAS:
		1537	aio_readlink = EIO_READLINK
		1538	aio_realpath = EIO_REALPATH
		1539	PPCODE:
		1540	{
693	dREQ;	1541	dREQ;
694		1542
695	req->type = EIO_READLINK;	1543	req->type = ix;
696	req->sv1 = newSVsv (path);	1544	req_set_path1 (req, pathname);
697	req->ptr1 = SvPVbyte_nolen (req->sv1);
698		1545
699	REQ_SEND;	1546	REQ_SEND;
700	}	1547	}
701		1548
702	void	1549	void
703	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1550	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
704	PROTOTYPE: $$$$;$
705	PPCODE:	1551	PPCODE:
706	{	1552	{
		1553	int ifd = s_fileno_croak (in_fh , 0);
		1554	int ofd = s_fileno_croak (out_fh, 1);
707	dREQ;	1555	dREQ;
708		1556
709	req->type = EIO_SENDFILE;	1557	req->type = EIO_SENDFILE;
710	req->sv1 = newSVsv (out_fh);	1558	req->sv1 = newSVsv (out_fh);
711	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1559	req->int1 = ofd;
712	req->sv2 = newSVsv (in_fh);	1560	req->sv2 = newSVsv (in_fh);
713	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1561	req->int2 = ifd;
714	req->offs = SvVAL64 (in_offset);	1562	req->offs = in_offset;
715	req->size = length;	1563	req->size = length;
716		1564
717	REQ_SEND;	1565	REQ_SEND;
718	}	1566	}
719		1567
720	void	1568	void
721	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1569	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
722	PROTOTYPE: $$$;$
723	PPCODE:	1570	PPCODE:
724	{	1571	{
		1572	int fd = s_fileno_croak (fh, 0);
725	dREQ;	1573	dREQ;
726		1574
727	req->type = EIO_READAHEAD;	1575	req->type = EIO_READAHEAD;
728	req->sv1 = newSVsv (fh);	1576	req->sv1 = newSVsv (fh);
729	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1577	req->int1 = fd;
730	req->offs = SvVAL64 (offset);	1578	req->offs = offset;
731	req->size = length;	1579	req->size = length;
732		1580
733	REQ_SEND;	1581	REQ_SEND;
734	}	1582	}
735		1583
736	void	1584	void
737	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1585	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
738	ALIAS:	1586	ALIAS:
739	aio_stat = EIO_STAT	1587	aio_stat = EIO_STAT
740	aio_lstat = EIO_LSTAT	1588	aio_lstat = EIO_LSTAT
		1589	aio_statvfs = EIO_STATVFS
741	PPCODE:	1590	PPCODE:
742	{	1591	{
743	dREQ;	1592	dREQ;
744		1593
745	req->sv1 = newSVsv (fh_or_path);	1594	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
746
747	if (SvPOK (req->sv1))
748	{
749	req->type = ix;
750	req->ptr1 = SvPVbyte_nolen (req->sv1);
751	}
752	else
753	{
754	req->type = EIO_FSTAT;
755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
756	}
757		1595
758	REQ_SEND;	1596	REQ_SEND;
759	}	1597	}
760		1598
		1599	UV
		1600	major (UV dev)
		1601	ALIAS:
		1602	minor = 1
		1603	CODE:
		1604	RETVAL = ix ? minor (dev) : major (dev);
		1605	OUTPUT:
		1606	RETVAL
		1607
		1608	UV
		1609	makedev (UV maj, UV min)
		1610	CODE:
		1611	RETVAL = makedev (maj, min);
		1612	OUTPUT:
		1613	RETVAL
		1614
761	void	1615	void
762	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1616	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
763	PPCODE:	1617	PPCODE:
764	{	1618	{
765	dREQ;	1619	dREQ;
766		1620
767	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1621	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
768	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1622	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
769	req->sv1 = newSVsv (fh_or_path);	1623	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
770
771	if (SvPOK (req->sv1))
772	{
773	req->type = EIO_UTIME;
774	req->ptr1 = SvPVbyte_nolen (req->sv1);
775	}
776	else
777	{
778	req->type = EIO_FUTIME;
779	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780	}
781		1624
782	REQ_SEND;	1625	REQ_SEND;
783	}	1626	}
784		1627
785	void	1628	void
786	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1629	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
787	PPCODE:	1630	PPCODE:
788	{	1631	{
789	dREQ;	1632	dREQ;
790		1633
791	req->sv1 = newSVsv (fh_or_path);
792	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
793		1635	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
794	if (SvPOK (req->sv1))
795	{
796	req->type = EIO_TRUNCATE;
797	req->ptr1 = SvPVbyte_nolen (req->sv1);
798	}
799	else
800	{
801	req->type = EIO_FTRUNCATE;
802	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
803	}
804		1636
805	REQ_SEND;	1637	REQ_SEND;
806	}	1638	}
807		1639
808	void	1640	void
809	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1641	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
810	ALIAS:
811	aio_chmod = EIO_CHMOD
812	aio_mkdir = EIO_MKDIR
813	PPCODE:	1642	PPCODE:
814	{	1643	{
815	dREQ;	1644	dREQ;
816		1645
817	req->int2 = mode;	1646	req->int2 = mode;
818	req->sv1 = newSVsv (fh_or_path);	1647	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
819
820	if (SvPOK (req->sv1))
821	{
822	req->type = ix;
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	}
825	else
826	{
827	req->type = EIO_FCHMOD;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1648
831	REQ_SEND;	1649	REQ_SEND;
832	}	1650	}
833		1651
834	void	1652	void
835	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1653	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
836	PPCODE:	1654	PPCODE:
837	{	1655	{
838	dREQ;	1656	dREQ;
839		1657
840	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1658	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
841	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1659	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
842	req->sv1 = newSVsv (fh_or_path);	1660	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
843
844	if (SvPOK (req->sv1))
845	{
846	req->type = EIO_CHOWN;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);
848	}
849	else
850	{
851	req->type = EIO_FCHOWN;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1661
855	REQ_SEND;	1662	REQ_SEND;
856	}	1663	}
857		1664
858	void	1665	void
		1666	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1667	PPCODE:
		1668	{
		1669	dREQ;
		1670
		1671	req->type = EIO_READDIR;
		1672	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1673
		1674	if (flags & EIO_READDIR_DENTS)
		1675	req->int1 |= EIO_READDIR_CUSTOM2;
		1676
		1677	req_set_path1 (req, pathname);
		1678
		1679	REQ_SEND;
		1680	}
		1681
		1682	void
		1683	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1684	PPCODE:
		1685	{
		1686	dREQ;
		1687
		1688	req->type = EIO_MKDIR;
		1689	req->int2 = mode;
		1690	req_set_path1 (req, pathname);
		1691
		1692	REQ_SEND;
		1693	}
		1694
		1695	void
859	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1696	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
860	ALIAS:	1697	ALIAS:
861	aio_unlink = EIO_UNLINK	1698	aio_unlink = EIO_UNLINK
862	aio_rmdir = EIO_RMDIR	1699	aio_rmdir = EIO_RMDIR
863	aio_readdir = EIO_READDIR	1700	aio_readdir = EIO_READDIR
864	PPCODE:	1701	PPCODE:
865	{	1702	{
866	dREQ;	1703	dREQ;
867		1704
868	req->type = ix;	1705	req->type = ix;
869	req->sv1 = newSVsv (pathname);	1706	req_set_path1 (req, pathname);
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871		1707
872	REQ_SEND;	1708	REQ_SEND;
873	}	1709	}
874		1710
875	void	1711	void
876	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1712	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
877	ALIAS:	1713	ALIAS:
878	aio_link = EIO_LINK	1714	aio_link = EIO_LINK
879	aio_symlink = EIO_SYMLINK	1715	aio_symlink = EIO_SYMLINK
880	aio_rename = EIO_RENAME	1716	aio_rename = EIO_RENAME
881	PPCODE:	1717	PPCODE:
882	{	1718	{
		1719	eio_wd wd2 = 0;
883	dREQ;	1720	dREQ;
884		1721
885	req->type = ix;	1722	req->type = ix;
886	req->sv1 = newSVsv (oldpath);	1723	req_set_path1 (req, oldpath);
887	req->ptr1 = SvPVbyte_nolen (req->sv1);	1724	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
888	req->sv2 = newSVsv (newpath);	1725	req->int3 = (long)wd2;
889	req->ptr2 = SvPVbyte_nolen (req->sv2);
890		1726
891	REQ_SEND;	1727	REQ_SEND;
892	}	1728	}
893		1729
894	void	1730	void
		1731	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	eio_wd wd2 = 0;
		1735	dREQ;
		1736
		1737	req->type = EIO_RENAME;
		1738	req_set_path1 (req, oldpath);
		1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1740	req->int2 = flags;
		1741	req->int3 = (long)wd2;
		1742
		1743	REQ_SEND;
		1744	}
		1745
		1746	void
895	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1747	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
896	PPCODE:	1748	PPCODE:
897	{	1749	{
898	dREQ;	1750	dREQ;
899		1751
900	req->type = EIO_MKNOD;	1752	req->type = EIO_MKNOD;
901	req->sv1 = newSVsv (pathname);
902	req->ptr1 = SvPVbyte_nolen (req->sv1);
903	req->int2 = (mode_t)mode;	1753	req->int2 = (mode_t)mode;
904	req->offs = dev;	1754	req->offs = dev;
		1755	req_set_path1 (req, pathname);
905		1756
906	REQ_SEND;	1757	REQ_SEND;
907	}	1758	}
908		1759
909	void	1760	void
		1761	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1762	ALIAS:
		1763	aio_mtouch = EIO_MTOUCH
		1764	aio_msync = EIO_MSYNC
		1765	PPCODE:
		1766	{
		1767	STRLEN svlen;
		1768	char *svptr = SvPVbyte (data, svlen);
		1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1773
		1774	if (offset < 0)
		1775	offset += svlen;
		1776
		1777	if (offset < 0 || offset > svlen)
		1778	croak ("offset outside of scalar");
		1779
		1780	if (!SvOK (length) || len + offset > svlen)
		1781	len = svlen - offset;
		1782
		1783	{
		1784	dREQ;
		1785
		1786	req->type = ix;
		1787	req->sv2 = SvREFCNT_inc (data);
		1788	req->ptr2 = (char *)svptr + offset;
		1789	req->size = len;
		1790	req->int1 = flags;
		1791
		1792	REQ_SEND;
		1793	}
		1794	}
		1795
		1796	void
		1797	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1798	PPCODE:
		1799	{
		1800	STRLEN svlen;
		1801	char *svptr = SvPVbyte (data, svlen);
		1802	UV len = SvUV (length);
		1803
		1804	if (offset < 0)
		1805	offset += svlen;
		1806
		1807	if (offset < 0 || offset > svlen)
		1808	croak ("offset outside of scalar");
		1809
		1810	if (!SvOK (length) || len + offset > svlen)
		1811	len = svlen - offset;
		1812
		1813	{
		1814	dREQ;
		1815
		1816	req->type = EIO_MLOCK;
		1817	req->sv2 = SvREFCNT_inc (data);
		1818	req->ptr2 = (char *)svptr + offset;
		1819	req->size = len;
		1820
		1821	REQ_SEND;
		1822	}
		1823	}
		1824
		1825	void
		1826	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1827	PPCODE:
		1828	{
		1829	dREQ;
		1830
		1831	req->type = EIO_MLOCKALL;
		1832	req->int1 = flags;
		1833
		1834	REQ_SEND;
		1835	}
		1836
		1837	void
		1838	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1839	PPCODE:
		1840	{
		1841	int fd = s_fileno_croak (fh, 0);
		1842	dREQ;
		1843
		1844	req->type = EIO_CUSTOM;
		1845	req->sv1 = newSVsv (fh);
		1846	req->int1 = fd;
		1847
		1848	req->feed = fiemap;
		1849	#if HAVE_FIEMAP
		1850	/* keep our fingers crossed that the next two types are 64 bit */
		1851	req->offs = start;
		1852	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1853	req->int2 = flags;
		1854	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1855	#endif
		1856
		1857	REQ_SEND;
		1858	}
		1859
		1860	void
		1861	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1862	PPCODE:
		1863	{
		1864	char *svptr = 0;
		1865
		1866	sv_clear_foreign (data);
		1867
		1868	if (length) /* known length, directly read into scalar */
		1869	{
		1870	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1871	svptr = sv_grow (data, length + 1);
		1872	else if (SvCUR (data) < length)
		1873	croak ("length outside of scalar, and cannot grow");
		1874	else
		1875	svptr = SvPVbyte_nolen (data);
		1876	}
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_SLURP;
		1882	req_set_path1 (req, pathname);
		1883	req->offs = offset;
		1884	req->size = length;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = svptr;
		1887
		1888	if (!SvREADONLY (data))
		1889	{
		1890	SvREADONLY_on (data);
		1891	req->flags |= FLAG_SV2_RO_OFF;
		1892	}
		1893
		1894	REQ_SEND;
		1895	}
		1896	}
		1897
		1898	void
910	aio_busy (double delay, SV *callback=&PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
911	PPCODE:	1900	PPCODE:
912	{	1901	{
913	dREQ;	1902	dREQ;
914		1903
915	req->type = EIO_BUSY;	1904	req->type = EIO_BUSY;
…		…
917		1906
918	REQ_SEND;	1907	REQ_SEND;
919	}	1908	}
920		1909
921	void	1910	void
922	aio_group (SV *callback=&PL_sv_undef)	1911	aio_group (SV *callback = &PL_sv_undef)
923	PROTOTYPE: ;$
924	PPCODE:	1912	PPCODE:
925	{	1913	{
926	dREQ;	1914	dREQ;
927		1915
928	req->type = EIO_GROUP;	1916	req->type = EIO_GROUP;
929		1917
		1918	PUTBACK;
930	req_submit (req);	1919	req_submit (req);
		1920	SPAGAIN;
		1921
931	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1922	XPUSHs (req_sv (req, aio_grp_stash));
932	}	1923	}
933		1924
934	void	1925	void
935	aio_nop (SV *callback=&PL_sv_undef)	1926	aio_nop (SV *callback = &PL_sv_undef)
936	ALIAS:	1927	ALIAS:
937	aio_nop = EIO_NOP	1928	aio_nop = EIO_NOP
938	aio_sync = EIO_SYNC	1929	aio_sync = EIO_SYNC
939	PPCODE:	1930	PPCODE:
940	{	1931	{
…		…
944		1935
945	REQ_SEND;	1936	REQ_SEND;
946	}	1937	}
947		1938
948	int	1939	int
949	aioreq_pri (int pri = 0)	1940	aioreq_pri (int pri = NO_INIT)
950	PROTOTYPE: ;$
951	CODE:	1941	CODE:
952	RETVAL = next_pri;	1942	RETVAL = next_pri;
953	if (items > 0)	1943	if (items > 0)
954	{	1944	{
955	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1945	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
967	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1957	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
968	next_pri = nice;	1958	next_pri = nice;
969		1959
970	void	1960	void
971	flush ()	1961	flush ()
972	PROTOTYPE:
973	CODE:	1962	CODE:
974	while (eio_nreqs ())	1963	while (eio_nreqs ())
975	{	1964	{
976	poll_wait ();	1965	poll_wait ();
977	poll_cb ();	1966	poll_cb ();
978	}	1967	}
979		1968
980	int	1969	int
981	poll()	1970	poll ()
982	PROTOTYPE:
983	CODE:	1971	CODE:
984	poll_wait ();	1972	poll_wait ();
985	RETVAL = poll_cb ();	1973	RETVAL = poll_cb ();
986	OUTPUT:	1974	OUTPUT:
987	RETVAL	1975	RETVAL
988		1976
989	int	1977	int
990	poll_fileno()	1978	poll_fileno ()
991	PROTOTYPE:
992	CODE:	1979	CODE:
993	RETVAL = respipe [0];	1980	RETVAL = s_epipe_fd (&respipe);
994	OUTPUT:	1981	OUTPUT:
995	RETVAL	1982	RETVAL
996		1983
997	int	1984	int
998	poll_cb(...)	1985	poll_cb (...)
999	PROTOTYPE:	1986	PROTOTYPE:
1000	CODE:	1987	CODE:
1001	RETVAL = poll_cb ();	1988	RETVAL = poll_cb ();
1002	OUTPUT:	1989	OUTPUT:
1003	RETVAL	1990	RETVAL
1004		1991
1005	void	1992	void
1006	poll_wait()	1993	poll_wait ()
1007	PROTOTYPE:
1008	CODE:	1994	CODE:
1009	poll_wait ();	1995	poll_wait ();
1010		1996
1011	int	1997	int
1012	nreqs()	1998	nreqs ()
1013	PROTOTYPE:
1014	CODE:	1999	CODE:
1015	RETVAL = eio_nreqs ();	2000	RETVAL = eio_nreqs ();
1016	OUTPUT:	2001	OUTPUT:
1017	RETVAL	2002	RETVAL
1018		2003
1019	int	2004	int
1020	nready()	2005	nready ()
1021	PROTOTYPE:
1022	CODE:	2006	CODE:
1023	RETVAL = eio_nready ();	2007	RETVAL = eio_nready ();
1024	OUTPUT:	2008	OUTPUT:
1025	RETVAL	2009	RETVAL
1026		2010
1027	int	2011	int
1028	npending()	2012	npending ()
1029	PROTOTYPE:
1030	CODE:	2013	CODE:
1031	RETVAL = eio_npending ();	2014	RETVAL = eio_npending ();
1032	OUTPUT:	2015	OUTPUT:
1033	RETVAL	2016	RETVAL
1034		2017
1035	int	2018	int
1036	nthreads()	2019	nthreads ()
1037	PROTOTYPE:
1038	CODE:	2020	CODE:
1039	RETVAL = eio_nthreads ();	2021	RETVAL = eio_nthreads ();
1040	OUTPUT:	2022	OUTPUT:
1041	RETVAL	2023	RETVAL
1042		2024
		2025	int
		2026	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2027	CODE:
		2028	RETVAL = posix_fadvise (fh, offset, length, advice);
		2029	OUTPUT:
		2030	RETVAL
		2031
		2032	IV
		2033	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2034	CODE:
		2035	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2036	OUTPUT:
		2037	RETVAL
		2038
		2039	void
		2040	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2041	PPCODE:
		2042	sv_clear_foreign (scalar);
		2043	{
		2044	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2045	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2046	if (addr == (void *)-1)
		2047	XSRETURN_NO;
		2048
		2049	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2050
		2051	if (!(prot & PROT_WRITE))
		2052	SvREADONLY_on (scalar);
		2053
		2054	XSRETURN_YES;
		2055	}
		2056
		2057	void
		2058	munmap (SV *scalar)
		2059	CODE:
		2060	sv_clear_foreign (scalar);
		2061
		2062	int
		2063	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2064	ALIAS:
		2065	mprotect = 1
		2066	CODE:
		2067	{
		2068	STRLEN svlen;
		2069	void *addr = SvPVbyte (scalar, svlen);
		2070	STRLEN len = SvUV (length);
		2071
		2072	if (offset < 0)
		2073	offset += svlen;
		2074
		2075	if (offset < 0 || offset > svlen)
		2076	croak ("offset outside of scalar");
		2077
		2078	if (!SvOK (length) || len + offset > svlen)
		2079	len = svlen - offset;
		2080
		2081	addr = (void *)(((intptr_t)addr) + offset);
		2082	eio_page_align (&addr, &len);
		2083
		2084	switch (ix)
		2085	{
		2086	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2087	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2088	}
		2089	}
		2090	OUTPUT:
		2091	RETVAL
		2092
		2093	int
		2094	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2095	CODE:
		2096	{
		2097	STRLEN svlen;
		2098	void *addr = SvPVbyte (scalar, svlen);
		2099	size_t len = SvUV (length);
		2100
		2101	if (offset < 0)
		2102	offset += svlen;
		2103
		2104	if (offset < 0 || offset > svlen)
		2105	croak ("offset outside of scalar");
		2106
		2107	if (!SvOK (length) || len + offset > svlen)
		2108	len = svlen - offset;
		2109
		2110	addr = (void *)(((intptr_t)addr) + offset);
		2111	eio_page_align (&addr, &len);
		2112	#if _POSIX_MEMLOCK_RANGE
		2113	RETVAL = munlock (addr, len);
		2114	#else
		2115	RETVAL = EIO_ENOSYS ();
		2116	#endif
		2117	}
		2118	OUTPUT:
		2119	RETVAL
		2120
		2121	int
		2122	munlockall ()
		2123	CODE:
		2124	#if _POSIX_MEMLOCK
		2125	munlockall ();
		2126	#else
		2127	RETVAL = EIO_ENOSYS ();
		2128	#endif
		2129	OUTPUT:
		2130	RETVAL
		2131
		2132	int
		2133	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2134	CODE:
		2135	{
		2136	#if HAVE_LINUX_SPLICE
		2137	loff_t off_in_, off_out_;
		2138	RETVAL = splice (
		2139	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2140	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2141	length, flags
		2142	);
		2143	#else
		2144	RETVAL = EIO_ENOSYS ();
		2145	#endif
		2146	}
		2147	OUTPUT:
		2148	RETVAL
		2149
		2150	int
		2151	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2152	CODE:
		2153	#if HAVE_LINUX_SPLICE
		2154	RETVAL = tee (rfh, wfh, length, flags);
		2155	#else
		2156	RETVAL = EIO_ENOSYS ();
		2157	#endif
		2158	OUTPUT:
		2159	RETVAL
		2160
		2161	int
		2162	pipesize (aio_rfd rfh, int new_size = -1)
		2163	PROTOTYPE: $;$
		2164	CODE:
		2165	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2166	if (new_size >= 0)
		2167	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2168	else
		2169	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2170	#else
		2171	errno = ENOSYS;
		2172	RETVAL = -1;
		2173	#endif
		2174	OUTPUT:
		2175	RETVAL
		2176
		2177	void
		2178	pipe2 (int flags = 0)
		2179	PROTOTYPE: ;$
		2180	PPCODE:
		2181	{
		2182	int fd[2];
		2183	int res;
		2184
		2185	if (flags)
		2186	#if HAVE_PIPE2
		2187	res = pipe2 (fd, flags);
		2188	#else
		2189	res = (errno = ENOSYS, -1);
		2190	#endif
		2191	else
		2192	res = pipe (fd);
		2193
		2194	if (!res)
		2195	{
		2196	EXTEND (SP, 2);
		2197	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2198	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2199	}
		2200	}
		2201
		2202	void
		2203	eventfd (unsigned int initval = 0, int flags = 0)
		2204	PPCODE:
		2205	{
		2206	int fd;
		2207	#if HAVE_EVENTFD
		2208	fd = eventfd (initval, flags);
		2209	#else
		2210	fd = (errno = ENOSYS, -1);
		2211	#endif
		2212
		2213	XPUSHs (newmortalFH (fd, O_RDWR));
		2214	}
		2215
		2216	void
		2217	timerfd_create (int clockid, int flags = 0)
		2218	PPCODE:
		2219	{
		2220	int fd;
		2221	#if HAVE_TIMERFD
		2222	fd = timerfd_create (clockid, flags);
		2223	#else
		2224	fd = (errno = ENOSYS, -1);
		2225	#endif
		2226
		2227	XPUSHs (newmortalFH (fd, O_RDWR));
		2228	}
		2229
		2230	void
		2231	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2232	PPCODE:
		2233	{
		2234	int fd = s_fileno_croak (fh, 0);
		2235	int res;
		2236	struct itimerspec its, ots;
		2237
		2238	ts_set (&its.it_interval, interval);
		2239	ts_set (&its.it_value , value);
		2240	#if HAVE_TIMERFD
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242	#else
		2243	res = (errno = ENOSYS, -1);
		2244	#endif
		2245
		2246	if (!res)
		2247	{
		2248	EXTEND (SP, 2);
		2249	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2250	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2251	}
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	int res;
		2260	struct itimerspec ots;
		2261	#if HAVE_TIMERFD
		2262	res = timerfd_gettime (fd, &ots);
		2263	#else
		2264	res = (errno = ENOSYS, -1);
		2265	#endif
		2266
		2267	if (!res)
		2268	{
		2269	EXTEND (SP, 2);
		2270	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2271	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2272	}
		2273	}
		2274
		2275	UV
		2276	get_fdlimit ()
		2277	CODE:
		2278	#if HAVE_RLIMITS
		2279	struct rlimit rl;
		2280	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2281	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2282	#endif
		2283	XSRETURN_UNDEF;
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	void
		2288	min_fdlimit (UV limit = 0x7fffffffU)
		2289	CODE:
		2290	{
		2291	#if HAVE_RLIMITS
		2292	struct rlimit rl;
		2293	rlim_t orig_rlim_max;
		2294	UV bit;
		2295
		2296	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2297	goto fail;
		2298
		2299	if (rl.rlim_cur == RLIM_INFINITY)
		2300	XSRETURN_YES;
		2301
		2302	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2303
		2304	if (rl.rlim_cur < limit)
		2305	{
		2306	rl.rlim_cur = limit;
		2307
		2308	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2309	rl.rlim_max = rl.rlim_cur;
		2310	}
		2311
		2312	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2313	XSRETURN_YES;
		2314
		2315	if (errno == EPERM)
		2316	{
		2317	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2318	/* our limit overflows a system-wide limit */
		2319	/* try an adaptive algorithm, but do not lower the hardlimit */
		2320	rl.rlim_max = 0;
		2321	for (bit = 0x40000000U; bit; bit >>= 1)
		2322	{
		2323	rl.rlim_max |= bit;
		2324	rl.rlim_cur = rl.rlim_max;
		2325
		2326	/* nevr decrease the hard limit */
		2327	if (rl.rlim_max < orig_rlim_max)
		2328	break;
		2329
		2330	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2331	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2332	}
		2333
		2334	/* now, raise the soft limit to the max permitted */
		2335	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2336	{
		2337	rl.rlim_cur = rl.rlim_max;
		2338	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2339	errno = EPERM;
		2340	}
		2341	}
		2342	#endif
		2343	fail:
		2344	XSRETURN_UNDEF;
		2345	}
		2346
1043	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1044	CODE:	2348	CODE:
1045	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);
1046	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2350	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1047		2351
1048	PROTOTYPES: DISABLE	2352	PROTOTYPES: DISABLE
1049		2353
		2354	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2355
		2356	BOOT:
		2357	{
		2358	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2359	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2360	}
		2361
		2362	void
		2363	DESTROY (SV *self)
		2364	CODE:
		2365	{
		2366	aio_wd wd = SvAIO_WD (self);
		2367	#if HAVE_AT
		2368	{
		2369	SV *callback = &PL_sv_undef;
		2370	dREQ; /* clobbers next_pri :/ */
		2371	next_pri = req->pri; /* restore next_pri */
		2372	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2373	req->type = EIO_WD_CLOSE;
		2374	req->wd = wd;
		2375	REQ_SEND;
		2376	}
		2377	#else
		2378	eio_wd_close_sync (wd);
		2379	#endif
		2380	}
		2381
1050	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2382	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1051		2383
1052	void	2384	void
1053	cancel (aio_req_ornot req)	2385	cancel (aio_req_ornot req)
1054	CODE:	2386	CODE:
1055	eio_cancel (req);	2387	eio_cancel (req);
1056		2388
1057	void	2389	void
1058	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2390	cb (aio_req_ornot req, SV *callback = NO_INIT)
1059	PPCODE:	2391	PPCODE:
1060	{	2392	{
1061	if (GIMME_V != G_VOID)	2393	if (GIMME_V != G_VOID)
1062	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2394	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1063		2395
…		…
1108	AV *av;	2440	AV *av;
1109		2441
1110	grp->errorno = errno;	2442	grp->errorno = errno;
1111		2443
1112	av = newAV ();	2444	av = newAV ();
		2445	av_extend (av, items - 1);
1113		2446
1114	for (i = 1; i < items; ++i )	2447	for (i = 1; i < items; ++i )
1115	av_push (av, newSVsv (ST (i)));	2448	av_push (av, newSVsv (ST (i)));
1116		2449
1117	SvREFCNT_dec (grp->sv1);	2450	SvREFCNT_dec (grp->sv1);
…		…
1127	limit (aio_req grp, int limit)	2460	limit (aio_req grp, int limit)
1128	CODE:	2461	CODE:
1129	eio_grp_limit (grp, limit);	2462	eio_grp_limit (grp, limit);
1130		2463
1131	void	2464	void
1132	feed (aio_req grp, SV *callback=&PL_sv_undef)	2465	feed (aio_req grp, SV *callback = &PL_sv_undef)
1133	CODE:	2466	CODE:
1134	{	2467	{
1135	SvREFCNT_dec (grp->sv2);	2468	SvREFCNT_dec (grp->sv2);
1136	grp->sv2 = newSVsv (callback);	2469	grp->sv2 = newSVsv (callback);
1137	grp->feed = aio_grp_feed;	2470	grp->feed = aio_grp_feed;

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