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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.147 by root, Mon Jun 15 05:34:49 2009 UTC vs.
Revision 1.260 by root, Tue Jul 24 04:58:59 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>
13	#include <sys/stat.h>	17	#include <sys/stat.h>
14	#include <limits.h>	18	#include <limits.h>
15	#include <fcntl.h>	19	#include <fcntl.h>
16	#include <sched.h>	20	#include <sched.h>
17		21
		22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		23	# include <sys/mman.h>
		24	#endif
		25
		26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		32	# include <linux/fs.h>
		33	# ifdef FS_IOC_FIEMAP
		34	# include <linux/types.h>
		35	# include <linux/fiemap.h>
		36	# define HAVE_FIEMAP 1
		37	# endif
		38	#endif
		39
18	/* perl namespace pollution */	40	/* perl namespace pollution */
19	#undef VERSION	41	#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		42
70	/* perl stupidly overrides readdir and maybe others */	43	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	44	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	45	#undef readdir
73	#undef opendir	46	#undef opendir
74	#undef closedir	47	#undef closedir
75		48
		49	#ifdef _WIN32
		50
		51	// perl overrides all those nice libc functions
		52
		53	#undef malloc
		54	#undef free
		55	#undef open
		56	#undef read
		57	#undef write
		58	#undef send
		59	#undef recv
		60	#undef stat
		61	#undef lstat
		62	#undef fstat
		63	#undef truncate
		64	#undef ftruncate
		65	#undef open
		66	#undef link
		67	#undef close
		68	#undef unlink
		69	#undef mkdir
		70	#undef rmdir
		71	#undef rename
		72	#undef lseek
		73	#undef opendir
		74	#undef readdir
		75	#undef closedir
		76	#undef chmod
		77	#undef fchmod
		78	#undef dup
		79	#undef dup2
		80	#undef abort
		81	#undef pipe
		82
		83	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	84	#define EIO_STRUCT_STATI64
77		85
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	86	#else
82	# define SvVAL64 SvNV	87
		88	#include <sys/time.h>
		89	#include <sys/select.h>
		90	#include <unistd.h>
		91	#include <utime.h>
		92	#include <signal.h>
		93
		94	#define EIO_STRUCT_STAT Stat_t
		95
83	#endif	96	#endif
84		97
85	/*****************************************************************************/	98	/*****************************************************************************/
86		99
87	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
95		108
96	/*****************************************************************************/	109	/*****************************************************************************/
97		110
98	static HV *stash;	111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
99	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
		129	typedef int aio_rfd; /* read file desriptor */
		130	typedef int aio_wfd; /* write file descriptor */
100		131
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		133
104	#define EIO_REQ_MEMBERS \	134	#define EIO_REQ_MEMBERS \
105	SV *callback; \	135	SV *callback; \
106	SV *sv1, *sv2; \	136	SV *sv1, *sv2; \
		137	SV *sv3, *sv4; \
107	STRLEN stroffset; \	138	STRLEN stroffset; \
108	SV *self;	139	SV *self;
109		140
110	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
111		142
…		…
114	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	148	#define EIO_DESTROY(req) req_destroy (req)
118		149
		150	#include "libeio/eio.c"
		151
		152	#if !HAVE_POSIX_FADVISE
		153	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		154	#endif
		155
		156	#if !HAVE_POSIX_MADVISE
		157	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		158	#endif
		159
		160	#ifndef MAP_ANONYMOUS
		161	# ifdef MAP_ANON
		162	# define MAP_ANONYMOUS MAP_ANON
		163	# else
		164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		165	# endif
		166	#endif
		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) (errno = ENOSYS, (void *)-1)
		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	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
		276
		277	/*****************************************************************************/
		278
		279	/* defines all sorts of constants to 0 unless they are already defined */
		280	/* also provides const_iv_ and const_niv_ macros for them */
		281	#include "def0.h"
		282
		283	/*****************************************************************************/
		284
		285	static void
		286	fiemap (eio_req *req)
		287	{
		288	req->result = -1;
		289
		290	#if HAVE_FIEMAP
		291	/* assume some c99 */
		292	struct fiemap *fiemap = 0;
		293	size_t end_offset;
		294	int count = req->int3;
		295
		296	req->flags |= EIO_FLAG_PTR1_FREE;
		297
		298	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		299	/* increase in 3.5kb steps */
		300	if (count < 0)
		301	count = 8;
		302
		303	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		304	errno = ENOMEM;
		305	if (!fiemap)
		306	return;
		307
		308	req->ptr1 = fiemap;
		309
		310	fiemap->fm_start = req->offs;
		311	fiemap->fm_length = req->size;
		312	fiemap->fm_flags = req->int2;
		313	fiemap->fm_extent_count = count;
		314
		315	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		316	return;
		317
		318	if (req->int3 >= 0 /* not autosizing */
		319	|| !fiemap->fm_mapped_extents /* no more extents */
		320	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		321	goto done;
		322
		323	/* else we have to loop -
		324	* it would be tempting (actually I tried that first) to just query the
		325	* number of extents needed, but linux often feels like not returning all
		326	* extents, without telling us it left any out. this complicates
		327	* this quite a bit.
		328	*/
		329
		330	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		331
		332	for (;;)
		333	{
		334	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		335	char scratch[3072];
		336	struct fiemap *incmap = (struct fiemap *)scratch;
		337
		338	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		339	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		340	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		341	incmap->fm_flags = fiemap->fm_flags;
		342	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		343
		344	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		345	return;
		346
		347	if (!incmap->fm_mapped_extents)
		348	goto done;
		349
		350	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		351	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		352	errno = ENOMEM;
		353	if (!fiemap)
		354	return;
		355
		356	req->ptr1 = fiemap;
		357
		358	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		359	{
		360	struct fiemap_extent *e = incmap->fm_extents + count;
		361
		362	if (e->fe_logical + e->fe_length >= end_offset)
		363	goto done;
		364
		365	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		366
		367	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		368	goto done;
		369
		370	}
		371	}
		372
		373	done:
		374	req->result = 0;
		375
		376	#else
		377	errno = ENOSYS;
		378	#endif
		379	}
		380
		381	/*****************************************************************************/
		382
119	enum {	383	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	384	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	385	};
122		386
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	387	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	388	typedef eio_req *aio_req_ornot;
		389	typedef eio_wd aio_wd;
127		390
128	static SV *on_next_submit;	391	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	392	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	393	static int max_outstanding;
131		394
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	395	static s_epipe respipe;
133		396
134	static void req_destroy (aio_req req);	397	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	398	static void req_cancel (aio_req req);
136		399
137	static void want_poll (void)	400	static void
		401	want_poll (void)
138	{	402	{
139	/* write a dummy byte to the pipe so fh becomes ready */	403	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	404	s_epipe_signal (&respipe);
141	}	405	}
142		406
143	static void done_poll (void)	407	static void
		408	done_poll (void)
144	{	409	{
145	/* read any signals sent by the worker threads */	410	/* read any signals sent by the worker threads */
146	char buf [4];	411	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	412	}
150		413
151	/* must be called at most once */	414	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	415	static SV *
		416	req_sv (aio_req req, HV *stash)
153	{	417	{
154	if (!req->self)	418	if (!req->self)
155	{	419	{
156	req->self = (SV *)newHV ();	420	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	421	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	422	}
159		423
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	424	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	425	}
162		426
163	static aio_req SvAIO_REQ (SV *sv)	427	static SV *
		428	newSVaio_wd (aio_wd wd)
		429	{
		430	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		431	}
		432
		433	static aio_req
		434	SvAIO_REQ (SV *sv)
164	{	435	{
165	MAGIC *mg;	436	MAGIC *mg;
166		437
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	438	if (!SvROK (sv)
		439	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		440	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		441	&& SvSTASH (SvRV (sv)) != aio_req_stash
		442	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	443	croak ("object of class IO::AIO::REQ expected");
169		444
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	445	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		446
172	return mg ? (aio_req)mg->mg_ptr : 0;	447	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	448	}
174		449
		450	static aio_wd
		451	SvAIO_WD (SV *sv)
		452	{
		453	if (!SvROK (sv)
		454	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		455	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		456	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		457
		458	return (aio_wd)(long)SvIVX (SvRV (sv));
		459	}
		460
		461	static SV *
		462	newmortalFH (int fd, int flags)
		463	{
		464	if (fd < 0)
		465	return &PL_sv_undef;
		466
		467	GV *gv = (GV *)sv_newmortal ();
		468	char sym[64];
		469	int symlen;
		470
		471	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		472	gv_init (gv, aio_stash, sym, symlen, 0);
		473
		474	symlen = snprintf (
		475	sym,
		476	sizeof (sym),
		477	"%s&=%d",
		478	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		479	fd
		480	);
		481
		482	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		483	? (SV *)gv : &PL_sv_undef;
		484	}
		485
		486	static void
175	static void aio_grp_feed (aio_req grp)	487	aio_grp_feed (aio_req grp)
176	{	488	{
177	if (grp->sv2 && SvOK (grp->sv2))	489	if (grp->sv2 && SvOK (grp->sv2))
178	{	490	{
179	dSP;	491	dSP;
180		492
181	ENTER;	493	ENTER;
182	SAVETMPS;	494	SAVETMPS;
183	PUSHMARK (SP);	495	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	496	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	497	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	498	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	499	SPAGAIN;
188	FREETMPS;	500	FREETMPS;
189	LEAVE;	501	LEAVE;
190	}	502	}
191	}	503	}
192		504
		505	static void
193	static void req_submit (eio_req *req)	506	req_submit (eio_req *req)
194	{	507	{
195	eio_submit (req);	508	eio_submit (req);
196		509
197	if (expect_false (on_next_submit))	510	if (expect_false (on_next_submit))
198	{	511	{
…		…
205	PUTBACK;	518	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	519	call_sv (cb, G_DISCARD | G_EVAL);
207	}	520	}
208	}	521	}
209		522
		523	static int
210	static int req_invoke (eio_req *req)	524	req_invoke (eio_req *req)
211	{	525	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	526	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	527	SvREADONLY_off (req->sv2);
216		528
217	if (!EIO_CANCELLED (req) && req->callback)	529	if (!EIO_CANCELLED (req) && req->callback)
218	{	530	{
		531	dSP;
		532	static SV *sv_result_cache; /* caches the result integer SV */
		533	SV *sv_result;
		534
219	ENTER;	535	ENTER;
220	SAVETMPS;	536	SAVETMPS;
221	PUSHMARK (SP);	537	PUSHMARK (SP);
222	EXTEND (SP, 1);	538	EXTEND (SP, 1);
223		539
		540	/* do not recreate the result IV from scratch each time */
		541	if (expect_true (sv_result_cache))
		542	{
		543	sv_result = sv_result_cache; sv_result_cache = 0;
		544	SvIV_set (sv_result, req->result);
		545	SvIOK_only (sv_result);
		546	}
		547	else
		548	{
		549	sv_result = newSViv (req->result);
		550	SvREADONLY_on (sv_result);
		551	}
		552
224	switch (req->type)	553	switch (req->type)
225	{	554	{
		555	case EIO_WD_OPEN:
		556	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		557	break;
		558
226	case EIO_READDIR:	559	case EIO_READDIR:
227	{	560	{
228	SV *rv = &PL_sv_undef;	561	SV *rv = &PL_sv_undef;
229		562
230	if (req->result >= 0)	563	if (req->result >= 0)
…		…
283	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	616	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
284	}	617	}
285	break;	618	break;
286		619
287	case EIO_OPEN:	620	case EIO_OPEN:
		621	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		622	break;
		623
		624	case EIO_STATVFS:
		625	case EIO_FSTATVFS:
288	{	626	{
289	/* convert fd to fh */
290	SV *fh = &PL_sv_undef;	627	SV *rv = &PL_sv_undef;
291		628
		629	#ifndef _WIN32
292	if (req->result >= 0)	630	if (req->result >= 0)
293	{	631	{
		632	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
294	GV *gv = (GV *)sv_newmortal ();	633	HV *hv = newHV ();
295	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	634	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
296	char sym [64];	635	* chooses to make it a struct.
297	int symlen;
298		636	*/
299	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	637	unsigned long fsid = 0;
300	gv_init (gv, stash, sym, symlen, 0);	638	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
301		639
302	symlen = snprintf (	640	rv = sv_2mortal (newRV_noinc ((SV *)hv));
303	sym,
304	sizeof (sym),
305	"%s&=%d",
306	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307	(int)req->result
308	);
309		641
310	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	642	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
311	fh = (SV *)gv;	643	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		644	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		645	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		646	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		647	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		648	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		649	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		650	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		651	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		652	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
312	}	653	}
		654	#endif
313		655
314	PUSHs (fh);	656	PUSHs (rv);
315	}	657	}
		658
316	break;	659	break;
317		660
318	case EIO_GROUP:	661	case EIO_GROUP:
319	req->int1 = 2; /* mark group as finished */	662	req->int1 = 2; /* mark group as finished */
320		663
…		…
332	case EIO_NOP:	675	case EIO_NOP:
333	case EIO_BUSY:	676	case EIO_BUSY:
334	break;	677	break;
335		678
336	case EIO_READLINK:	679	case EIO_READLINK:
		680	case EIO_REALPATH:
337	if (req->result > 0)	681	if (req->result > 0)
338	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	682	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
339	break;	683	break;
340		684
341	case EIO_STAT:	685	case EIO_STAT:
342	case EIO_LSTAT:	686	case EIO_LSTAT:
343	case EIO_FSTAT:	687	case EIO_FSTAT:
344	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	688	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		689
345	PL_laststatval = req->result;	690	if (!(PL_laststatval = req->result))
		691	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
346	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	692	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347	PUSHs (sv_2mortal (newSViv (req->result)));	693
		694	PUSHs (sv_result);
		695	break;
		696
		697	case EIO_SEEK:
		698	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
348	break;	699	break;
349		700
350	case EIO_READ:	701	case EIO_READ:
351	{	702	{
352	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	703	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353	*SvEND (req->sv2) = 0;	704	*SvEND (req->sv2) = 0;
354	SvPOK_only (req->sv2);	705	SvPOK_only (req->sv2);
355	SvSETMAGIC (req->sv2);	706	SvSETMAGIC (req->sv2);
356	PUSHs (sv_2mortal (newSViv (req->result)));	707	PUSHs (sv_result);
357	}	708	}
358	break;	709	break;
359		710
360	case EIO_DUP2:	711	case EIO_SLURP:
		712	{
		713	if (req->result >= 0)
		714	{
		715	/* if length was originally not known, we steal the malloc'ed memory */
		716	if (req->flags & EIO_FLAG_PTR2_FREE)
		717	{
		718	req->flags &= ~EIO_FLAG_PTR2_FREE;
		719	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		720	}
		721	else
		722	{
		723	SvCUR_set (req->sv2, req->result);
		724	*SvEND (req->sv2) = 0;
		725	SvPOK_only (req->sv2);
		726	}
		727
		728	SvSETMAGIC (req->sv2);
		729	}
		730
		731	PUSHs (sv_result);
		732	}
		733	break;
		734
		735	case EIO_CUSTOM:
		736	if (req->feed == fiemap)
		737	{
		738	#if HAVE_FIEMAP
		739	if (!req->result)
		740	{
		741	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		742
		743	if (fiemap->fm_extent_count)
		744	{
		745	AV *av = newAV ();
		746	int i;
		747
		748	while (fiemap->fm_mapped_extents)
		749	{
		750	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		751	AV *ext_av = newAV ();
		752
		753	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		754	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		755	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		756	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		757
		758	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		759	}
		760
		761	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		762	}
		763	else
		764	{
		765	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		766	PUSHs (sv_result);
		767	}
		768	}
		769	#endif
		770	}
		771	else
		772	PUSHs (sv_result);
		773	break;
		774
		775	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
361	if (req->result > 0)	776	if (req->result > 0)
362	req->result = 0;	777	SvIV_set (sv_result, 0);
363	/* FALLTHROUGH */	778	/* FALLTHROUGH */
364		779
365	default:	780	default:
366	PUSHs (sv_2mortal (newSViv (req->result)));	781	PUSHs (sv_result);
367	break;	782	break;
368	}	783	}
369		784
370	errno = req->errorno;	785	errno = req->errorno;
371		786
372	PUTBACK;	787	PUTBACK;
373	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	788	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374	SPAGAIN;	789	SPAGAIN;
375		790
		791	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		792	SvREFCNT_dec (sv_result);
		793	else
		794	sv_result_cache = sv_result;
		795
376	FREETMPS;	796	FREETMPS;
377	LEAVE;	797	LEAVE;
378		798
379	PUTBACK;	799	PUTBACK;
380	}	800	}
381		801
382	return !!SvTRUE (ERRSV);	802	return !!SvTRUE (ERRSV);
383	}	803	}
384		804
		805	static void
385	static void req_destroy (aio_req req)	806	req_destroy (aio_req req)
386	{	807	{
387	if (req->self)	808	if (req->self)
388	{	809	{
389	sv_unmagic (req->self, PERL_MAGIC_ext);	810	sv_unmagic (req->self, PERL_MAGIC_ext);
390	SvREFCNT_dec (req->self);	811	SvREFCNT_dec (req->self);
391	}	812	}
392		813
393	SvREFCNT_dec (req->sv1);	814	SvREFCNT_dec (req->sv1);
394	SvREFCNT_dec (req->sv2);	815	SvREFCNT_dec (req->sv2);
		816	SvREFCNT_dec (req->sv3);
		817	SvREFCNT_dec (req->sv4);
395	SvREFCNT_dec (req->callback);	818	SvREFCNT_dec (req->callback);
396		819
397	Safefree (req);	820	free (req);
398	}	821	}
399		822
		823	static void
400	static void req_cancel_subs (aio_req grp)	824	req_cancel_subs (aio_req grp)
401	{	825	{
402	aio_req sub;
403
404	if (grp->type != EIO_GROUP)	826	if (grp->type != EIO_GROUP)
405	return;	827	return;
406		828
407	SvREFCNT_dec (grp->sv2);	829	SvREFCNT_dec (grp->sv2);
408	grp->sv2 = 0;	830	grp->sv2 = 0;
409		831
410	eio_grp_cancel (grp);	832	eio_grp_cancel (grp);
411	}	833	}
412		834
413	#ifdef USE_SOCKETS_AS_HANDLES	835	static void ecb_cold
414	# define TO_SOCKET(x) (win32_get_osfhandle (x))	836	create_respipe (void)
415	#else	837	{
416	# define TO_SOCKET(x) (x)	838	if (s_epipe_renew (&respipe))
417	#endif	839	croak ("IO::AIO: unable to initialize result pipe");
		840	}
418		841
419	static void	842	static void
420	create_respipe (void)	843	poll_wait (void)
421	{	844	{
422	int old_readfd = respipe [0];
423
424	if (respipe [1] >= 0)
425	respipe_close (TO_SOCKET (respipe [1]));
426
427	#ifdef _WIN32
428	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
429	#else
430	if (pipe (respipe))
431	#endif
432	croak ("unable to initialize result pipe");
433
434	if (old_readfd >= 0)
435	{
436	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
437	croak ("unable to initialize result pipe(2)");
438
439	respipe_close (respipe [0]);
440	respipe [0] = old_readfd;
441	}
442
443	#ifdef _WIN32
444	int arg = 1;
445	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
446	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
447	#else
448	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
449	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
450	#endif
451	croak ("unable to initialize result pipe(3)");
452
453	respipe_osf [0] = TO_SOCKET (respipe [0]);
454	respipe_osf [1] = TO_SOCKET (respipe [1]);
455	}
456
457	static void poll_wait (void)
458	{
459	fd_set rfd;
460
461	while (eio_nreqs ())	845	while (eio_nreqs ())
462	{	846	{
463	int size;	847	int size;
464		848
465	X_LOCK (reslock);	849	X_LOCK (EIO_POOL->reslock);
466	size = res_queue.size;	850	size = EIO_POOL->res_queue.size;
467	X_UNLOCK (reslock);	851	X_UNLOCK (EIO_POOL->reslock);
468		852
469	if (size)	853	if (size)
470	return;	854	return;
471		855
472	etp_maybe_start_thread ();	856	etp_maybe_start_thread (EIO_POOL);
473		857
474	FD_ZERO (&rfd);	858	s_epipe_wait (&respipe);
475	FD_SET (respipe [0], &rfd);
476
477	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478	}	859	}
479	}	860	}
480		861
481	static int poll_cb (void)	862	static int
		863	poll_cb (void)
482	{	864	{
483	for (;;)	865	for (;;)
484	{	866	{
485	int res = eio_poll ();	867	int res = eio_poll ();
486		868
…		…
492		874
493	poll_wait ();	875	poll_wait ();
494	}	876	}
495	}	877	}
496		878
497	static void atfork_child (void)	879	static void ecb_cold
		880	reinit (void)
498	{	881	{
499	create_respipe ();	882	create_respipe ();
		883
		884	if (eio_init (want_poll, done_poll) < 0)
		885	croak ("IO::AIO: unable to initialise eio library");
500	}	886	}
		887
		888	/*****************************************************************************/
501		889
502	static SV *	890	static SV *
503	get_cb (SV *cb_sv)	891	get_cb (SV *cb_sv)
504	{	892	{
505	HV *st;	893	SvGETMAGIC (cb_sv);
506	GV *gvp;	894	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		895	}
		896
		897	static aio_req ecb_noinline
		898	dreq (SV *callback)
		899	{
507	CV *cv;	900	SV *cb_cv;
		901	aio_req req;
		902	int req_pri = next_pri;
		903	next_pri = EIO_PRI_DEFAULT;
508		904
509	if (!SvOK (cb_sv))	905	cb_cv = get_cb (callback);
		906
		907	req = calloc (sizeof (*req), 1);
		908	if (!req)
		909	croak ("out of memory during eio_req allocation");
		910
		911	req->callback = SvREFCNT_inc (cb_cv);
		912	req->pri = req_pri;
		913
510	return 0;	914	return req;
511
512	cv = sv_2cv (cb_sv, &st, &gvp, 0);
513
514	if (!cv)
515	croak ("IO::AIO callback must be undef or a CODE reference");
516
517	return (SV *)cv;
518	}	915	}
519		916
520	#define dREQ \	917	#define dREQ \
521	SV *cb_cv; \	918	aio_req req = dreq (callback); \
522	aio_req req; \
523	int req_pri = next_pri; \
524	next_pri = EIO_PRI_DEFAULT; \
525	\
526	cb_cv = get_cb (callback); \
527	\
528	Newz (0, req, 1, eio_req); \
529	if (!req) \
530	croak ("out of memory during eio_req allocation"); \
531	\
532	req->callback = SvREFCNT_inc (cb_cv); \
533	req->pri = req_pri
534		919
535	#define REQ_SEND \	920	#define REQ_SEND \
536	PUTBACK; \	921	PUTBACK; \
537	req_submit (req); \	922	req_submit (req); \
538	SPAGAIN; \	923	SPAGAIN; \
539	\	924	\
540	if (GIMME_V != G_VOID) \	925	if (GIMME_V != G_VOID) \
541	XPUSHs (req_sv (req, AIO_REQ_KLASS));	926	XPUSHs (req_sv (req, aio_req_stash));
542		927
		928	ecb_inline void
		929	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		930	{
		931	if (expect_false (SvROK (path)))
		932	{
		933	SV *rv = SvRV (path);
		934	SV *wdob;
		935
		936	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		937	{
		938	path = AvARRAY (rv)[1];
		939	wdob = AvARRAY (rv)[0];
		940
		941	if (SvOK (wdob))
		942	{
		943	*wd = SvAIO_WD (wdob);
		944	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		945	}
		946	else
		947	*wd = EIO_INVALID_WD;
		948	}
		949	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		950	{
		951	*wd = (aio_wd)(long)SvIVX (rv);
		952	*wdsv = SvREFCNT_inc_NN (rv);
		953	*ptr = ".";
		954	return; /* path set to "." */
		955	}
		956	else
		957	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		958	}
		959
		960	*pathsv = newSVsv (path);
		961	*ptr = SvPVbyte_nolen (*pathsv);
		962	}
		963
		964	static void ecb_noinline
		965	req_set_path1 (aio_req req, SV *path)
		966	{
		967	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		968	}
		969
		970	static void ecb_noinline
		971	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		972	{
		973	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		974
		975	switch (SvTYPE (rv))
		976	{
		977	case SVt_PVIO:
		978	case SVt_PVLV:
		979	case SVt_PVGV:
		980	req->type = type_fh;
		981	req->sv1 = newSVsv (fh_or_path);
		982	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		983	break;
		984
		985	default:
		986	req->type = type_path;
		987	req_set_path1 (req, fh_or_path);
		988	break;
		989	}
		990	}
		991
		992	/*****************************************************************************/
		993
543	static int	994	static void
544	extract_fd (SV *fh, int wr)	995	ts_set (struct timespec *ts, NV value)
545	{	996	{
546	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	997	ts->tv_sec = value;
547		998	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
548	if (fd < 0)
549	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
550
551	return fd;
552	}	999	}
		1000
		1001	static NV
		1002	ts_get (const struct timespec *ts)
		1003	{
		1004	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1005	}
		1006
		1007	/*****************************************************************************/
		1008
		1009	XS(boot_IO__AIO) ecb_cold;
553		1010
554	MODULE = IO::AIO PACKAGE = IO::AIO	1011	MODULE = IO::AIO PACKAGE = IO::AIO
555		1012
556	PROTOTYPES: ENABLE	1013	PROTOTYPES: ENABLE
557		1014
…		…
559	{	1016	{
560	static const struct {	1017	static const struct {
561	const char *name;	1018	const char *name;
562	IV iv;	1019	IV iv;
563	} *civ, const_iv[] = {	1020	} *civ, const_iv[] = {
564	# define const_iv(name, value) { # name, (IV) value },	1021	# define const_niv(name, value) { # name, (IV) value },
		1022	# define const_iv(name) { # name, (IV) name },
565	# define const_eio(name) { # name, (IV) EIO_ ## name },	1023	# define const_eio(name) { # name, (IV) EIO_ ## name },
566	const_iv (EXDEV , EXDEV)	1024
		1025	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1026	/* the first block can be undef if missing */
567	const_iv (ENOSYS , ENOSYS)	1027	const_iv (ENOSYS)
		1028	const_iv (EXDEV)
		1029	const_iv (EBADR)
		1030
		1031	/* for lseek */
		1032	const_iv (SEEK_DATA)
		1033	const_iv (SEEK_HOLE)
		1034
		1035	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1036	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1037	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1038	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1039	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1040	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1041
		1042	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1043	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1044	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1045	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1046	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1047
		1048	/* the second block will be 0 when missing */
		1049	const_iv (O_ACCMODE)
		1050
568	const_iv (O_RDONLY, O_RDONLY)	1051	const_iv (O_RDONLY)
569	const_iv (O_WRONLY, O_WRONLY)	1052	const_iv (O_WRONLY)
		1053	const_iv (O_RDWR)
570	const_iv (O_CREAT , O_CREAT)	1054	const_iv (O_CREAT)
571	const_iv (O_TRUNC , O_TRUNC)	1055	const_iv (O_TRUNC)
572	#ifndef _WIN32	1056	const_iv (O_EXCL)
		1057	const_iv (O_APPEND)
		1058
		1059	const_iv (O_ASYNC)
		1060	const_iv (O_DIRECT)
		1061	const_iv (O_NOATIME)
		1062
		1063	const_iv (O_CLOEXEC)
		1064	const_iv (O_NOCTTY)
		1065	const_iv (O_NOFOLLOW)
		1066	const_iv (O_NONBLOCK)
		1067	const_iv (O_EXEC)
		1068	const_iv (O_SEARCH)
		1069	const_iv (O_DIRECTORY)
		1070	const_iv (O_DSYNC)
		1071	const_iv (O_RSYNC)
		1072	const_iv (O_SYNC)
		1073	const_iv (O_PATH)
		1074	const_iv (O_TMPFILE)
		1075	const_iv (O_TTY_INIT)
		1076
573	const_iv (S_IFIFO , S_IFIFO)	1077	const_iv (S_IFIFO)
574	#endif	1078	const_iv (S_IFCHR)
		1079	const_iv (S_IFBLK)
		1080	const_iv (S_IFLNK)
		1081	const_iv (S_IFREG)
		1082	const_iv (S_IFDIR)
		1083	const_iv (S_IFWHT)
		1084	const_iv (S_IFSOCK)
		1085	const_iv (S_IFMT)
		1086
		1087	const_iv (ST_RDONLY)
		1088	const_iv (ST_NOSUID)
		1089	const_iv (ST_NODEV)
		1090	const_iv (ST_NOEXEC)
		1091	const_iv (ST_SYNCHRONOUS)
		1092	const_iv (ST_MANDLOCK)
		1093	const_iv (ST_WRITE)
		1094	const_iv (ST_APPEND)
		1095	const_iv (ST_IMMUTABLE)
		1096	const_iv (ST_NOATIME)
		1097	const_iv (ST_NODIRATIME)
		1098	const_iv (ST_RELATIME)
		1099
		1100	const_iv (PROT_NONE)
		1101	const_iv (PROT_EXEC)
		1102	const_iv (PROT_READ)
		1103	const_iv (PROT_WRITE)
		1104
		1105	const_iv (MAP_PRIVATE)
		1106	const_iv (MAP_SHARED)
		1107	const_iv (MAP_FIXED)
		1108	const_iv (MAP_ANONYMOUS)
		1109
		1110	/* linuxish */
		1111	const_iv (MAP_LOCKED)
		1112	const_iv (MAP_NORESERVE)
		1113	const_iv (MAP_POPULATE)
		1114	const_iv (MAP_NONBLOCK)
		1115	const_iv (MAP_GROWSDOWN)
		1116	const_iv (MAP_32BIT)
		1117	const_iv (MAP_HUGETLB)
		1118	const_iv (MAP_STACK)
		1119
		1120	const_iv (MREMAP_MAYMOVE)
		1121	const_iv (MREMAP_FIXED)
		1122
		1123	const_iv (F_DUPFD_CLOEXEC)
		1124
		1125	const_iv (F_OFD_GETLK)
		1126	const_iv (F_OFD_SETLK)
		1127	const_iv (F_OFD_GETLKW)
		1128
		1129	const_iv (FIFREEZE)
		1130	const_iv (FITHAW)
		1131	const_iv (FITRIM)
		1132	const_iv (FICLONE)
		1133	const_iv (FICLONERANGE)
		1134	const_iv (FIDEDUPERANGE)
		1135
		1136	const_iv (FS_IOC_GETFLAGS)
		1137	const_iv (FS_IOC_SETFLAGS)
		1138	const_iv (FS_IOC_GETVERSION)
		1139	const_iv (FS_IOC_SETVERSION)
		1140	const_iv (FS_IOC_FIEMAP)
		1141	const_iv (FS_IOC_FSGETXATTR)
		1142	const_iv (FS_IOC_FSSETXATTR)
		1143	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1144	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1145	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1146
		1147	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1148
		1149	const_iv (FS_SECRM_FL)
		1150	const_iv (FS_UNRM_FL)
		1151	const_iv (FS_COMPR_FL)
		1152	const_iv (FS_SYNC_FL)
		1153	const_iv (FS_IMMUTABLE_FL)
		1154	const_iv (FS_APPEND_FL)
		1155	const_iv (FS_NODUMP_FL)
		1156	const_iv (FS_NOATIME_FL)
		1157	const_iv (FS_DIRTY_FL)
		1158	const_iv (FS_COMPRBLK_FL)
		1159	const_iv (FS_NOCOMP_FL)
		1160	const_iv (FS_ENCRYPT_FL)
		1161	const_iv (FS_BTREE_FL)
		1162	const_iv (FS_INDEX_FL)
		1163	const_iv (FS_JOURNAL_DATA_FL)
		1164	const_iv (FS_NOTAIL_FL)
		1165	const_iv (FS_DIRSYNC_FL)
		1166	const_iv (FS_TOPDIR_FL)
		1167	const_iv (FS_FL_USER_MODIFIABLE)
		1168
		1169	const_iv (FS_XFLAG_REALTIME)
		1170	const_iv (FS_XFLAG_PREALLOC)
		1171	const_iv (FS_XFLAG_IMMUTABLE)
		1172	const_iv (FS_XFLAG_APPEND)
		1173	const_iv (FS_XFLAG_SYNC)
		1174	const_iv (FS_XFLAG_NOATIME)
		1175	const_iv (FS_XFLAG_NODUMP)
		1176	const_iv (FS_XFLAG_RTINHERIT)
		1177	const_iv (FS_XFLAG_PROJINHERIT)
		1178	const_iv (FS_XFLAG_NOSYMLINKS)
		1179	const_iv (FS_XFLAG_EXTSIZE)
		1180	const_iv (FS_XFLAG_EXTSZINHERIT)
		1181	const_iv (FS_XFLAG_NODEFRAG)
		1182	const_iv (FS_XFLAG_FILESTREAM)
		1183	const_iv (FS_XFLAG_DAX)
		1184	const_iv (FS_XFLAG_HASATTR)
		1185
		1186	const_iv (FIEMAP_FLAG_SYNC)
		1187	const_iv (FIEMAP_FLAG_XATTR)
		1188	const_iv (FIEMAP_FLAGS_COMPAT)
		1189	const_iv (FIEMAP_EXTENT_LAST)
		1190	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1191	const_iv (FIEMAP_EXTENT_DELALLOC)
		1192	const_iv (FIEMAP_EXTENT_ENCODED)
		1193	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1194	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1195	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1196	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1197	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1198	const_iv (FIEMAP_EXTENT_MERGED)
		1199	const_iv (FIEMAP_EXTENT_SHARED)
		1200
		1201	const_iv (SPLICE_F_MOVE)
		1202	const_iv (SPLICE_F_NONBLOCK)
		1203	const_iv (SPLICE_F_MORE)
		1204	const_iv (SPLICE_F_GIFT)
		1205
		1206	const_iv (EFD_CLOEXEC)
		1207	const_iv (EFD_NONBLOCK)
		1208	const_iv (EFD_SEMAPHORE)
		1209
		1210	const_iv (CLOCK_REALTIME)
		1211	const_iv (CLOCK_MONOTONIC)
		1212	const_iv (CLOCK_BOOTTIME)
		1213	const_iv (CLOCK_REALTIME_ALARM)
		1214	const_iv (CLOCK_BOOTTIME_ALARM)
		1215
		1216	const_iv (TFD_NONBLOCK)
		1217	const_iv (TFD_CLOEXEC)
		1218
		1219	const_iv (TFD_TIMER_ABSTIME)
		1220	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1221
		1222	/* these are libeio constants, and are independent of gendef0 */
		1223	const_eio (SEEK_SET)
		1224	const_eio (SEEK_CUR)
		1225	const_eio (SEEK_END)
		1226
		1227	const_eio (MCL_FUTURE)
		1228	const_eio (MCL_CURRENT)
		1229
		1230	const_eio (MS_ASYNC)
		1231	const_eio (MS_INVALIDATE)
		1232	const_eio (MS_SYNC)
		1233
		1234	const_eio (MT_MODIFY)
		1235
575	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1236	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
576	const_eio (SYNC_FILE_RANGE_WRITE)	1237	const_eio (SYNC_FILE_RANGE_WRITE)
577	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1238	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1239
		1240	const_eio (FALLOC_FL_KEEP_SIZE)
		1241	const_eio (FALLOC_FL_PUNCH_HOLE)
		1242	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1243	const_eio (FALLOC_FL_ZERO_RANGE)
		1244	const_eio (FALLOC_FL_INSERT_RANGE)
		1245	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1246
		1247	const_eio (RENAME_NOREPLACE)
		1248	const_eio (RENAME_EXCHANGE)
		1249	const_eio (RENAME_WHITEOUT)
578		1250
579	const_eio (READDIR_DENTS)	1251	const_eio (READDIR_DENTS)
580	const_eio (READDIR_DIRS_FIRST)	1252	const_eio (READDIR_DIRS_FIRST)
581	const_eio (READDIR_STAT_ORDER)	1253	const_eio (READDIR_STAT_ORDER)
582	const_eio (READDIR_FOUND_UNKNOWN)	1254	const_eio (READDIR_FOUND_UNKNOWN)
…		…
590	const_eio (DT_LNK)	1262	const_eio (DT_LNK)
591	const_eio (DT_SOCK)	1263	const_eio (DT_SOCK)
592	const_eio (DT_WHT)	1264	const_eio (DT_WHT)
593	};	1265	};
594		1266
595	stash = gv_stashpv ("IO::AIO", 1);	1267	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1268	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1269	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1270	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
596		1271
597	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1272	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
598	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1273	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
599		1274
600	create_respipe ();	1275	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
601		1276
602	if (eio_init (want_poll, done_poll) < 0)	1277	reinit ();
603	croak ("IO::AIO: unable to initialise eio library");
604
605	/* atfork child called in fifo order, so before eio's handler */
606	X_THREAD_ATFORK (0, 0, atfork_child);
607	}	1278	}
608		1279
609	void	1280	void
		1281	reinit ()
		1282	PROTOTYPE:
		1283
		1284	void
610	max_poll_reqs (int nreqs)	1285	max_poll_reqs (unsigned int nreqs)
611	PROTOTYPE: $	1286	PROTOTYPE: $
612	CODE:	1287	CODE:
613	eio_set_max_poll_reqs (nreqs);	1288	eio_set_max_poll_reqs (nreqs);
614		1289
615	void	1290	void
…		…
617	PROTOTYPE: $	1292	PROTOTYPE: $
618	CODE:	1293	CODE:
619	eio_set_max_poll_time (nseconds);	1294	eio_set_max_poll_time (nseconds);
620		1295
621	void	1296	void
622	min_parallel (int nthreads)	1297	min_parallel (unsigned int nthreads)
623	PROTOTYPE: $	1298	PROTOTYPE: $
624	CODE:	1299	CODE:
625	eio_set_min_parallel (nthreads);	1300	eio_set_min_parallel (nthreads);
626		1301
627	void	1302	void
628	max_parallel (int nthreads)	1303	max_parallel (unsigned int nthreads)
629	PROTOTYPE: $	1304	PROTOTYPE: $
630	CODE:	1305	CODE:
631	eio_set_max_parallel (nthreads);	1306	eio_set_max_parallel (nthreads);
632		1307
633	void	1308	void
634	max_idle (int nthreads)	1309	max_idle (unsigned int nthreads)
635	PROTOTYPE: $	1310	PROTOTYPE: $
636	CODE:	1311	CODE:
637	eio_set_max_idle (nthreads);	1312	eio_set_max_idle (nthreads);
638		1313
639	void	1314	void
		1315	idle_timeout (unsigned int seconds)
		1316	PROTOTYPE: $
		1317	CODE:
		1318	eio_set_idle_timeout (seconds);
		1319
		1320	void
640	max_outstanding (int maxreqs)	1321	max_outstanding (unsigned int maxreqs)
641	PROTOTYPE: $	1322	PROTOTYPE: $
642	CODE:	1323	CODE:
643	max_outstanding = maxreqs;	1324	max_outstanding = maxreqs;
644		1325
645	void	1326	void
646	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1327	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
647	PROTOTYPE: $$$;$
648	PPCODE:	1328	PPCODE:
649	{	1329	{
650	dREQ;	1330	dREQ;
651		1331
		1332	req->type = EIO_WD_OPEN;
		1333	req_set_path1 (req, pathname);
		1334
		1335	REQ_SEND;
		1336	}
		1337
		1338	void
		1339	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1340	PPCODE:
		1341	{
		1342	dREQ;
		1343
652	req->type = EIO_OPEN;	1344	req->type = EIO_OPEN;
653	req->sv1 = newSVsv (pathname);	1345	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->int1 = flags;	1346	req->int1 = flags;
656	req->int2 = mode;	1347	req->int2 = mode;
657		1348
658	REQ_SEND;	1349	REQ_SEND;
659	}	1350	}
660		1351
661	void	1352	void
662	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1353	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
663	PROTOTYPE: $;$
664	ALIAS:	1354	ALIAS:
665	aio_fsync = EIO_FSYNC	1355	aio_fsync = EIO_FSYNC
666	aio_fdatasync = EIO_FDATASYNC	1356	aio_fdatasync = EIO_FDATASYNC
		1357	aio_syncfs = EIO_SYNCFS
667	PPCODE:	1358	PPCODE:
668	{	1359	{
669	int fd = extract_fd (fh, 0);	1360	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1361	dREQ;
671		1362
672	req->type = ix;	1363	req->type = ix;
673	req->sv1 = newSVsv (fh);	1364	req->sv1 = newSVsv (fh);
674	req->int1 = fd;	1365	req->int1 = fd;
675		1366
676	REQ_SEND (req);	1367	REQ_SEND;
677	}	1368	}
678		1369
679	void	1370	void
680	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1371	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
681	PROTOTYPE: $$$$;$
682	PPCODE:	1372	PPCODE:
683	{	1373	{
684	int fd = extract_fd (fh, 0);	1374	int fd = s_fileno_croak (fh, 0);
685	dREQ;	1375	dREQ;
686		1376
687	req->type = EIO_SYNC_FILE_RANGE;	1377	req->type = EIO_SYNC_FILE_RANGE;
688	req->sv1 = newSVsv (fh);	1378	req->sv1 = newSVsv (fh);
689	req->int1 = fd;	1379	req->int1 = fd;
690	req->offs = SvVAL64 (offset);	1380	req->offs = offset;
691	req->size = SvVAL64 (nbytes);	1381	req->size = nbytes;
692	req->int2 = flags;	1382	req->int2 = flags;
693		1383
694	REQ_SEND (req);	1384	REQ_SEND;
695	}	1385	}
696		1386
697	void	1387	void
698	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1388	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
699	PROTOTYPE: $;$
700	PPCODE:	1389	PPCODE:
701	{	1390	{
702	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1391	int fd = s_fileno_croak (fh, 0);
703	int fd = extract_fd (fh, 0);
704	dREQ;	1392	dREQ;
705		1393
706	if (close_pipe < 0)	1394	req->type = EIO_FALLOCATE;
		1395	req->sv1 = newSVsv (fh);
		1396	req->int1 = fd;
		1397	req->int2 = mode;
		1398	req->offs = offset;
		1399	req->size = len;
		1400
		1401	REQ_SEND;
		1402	}
		1403
		1404	void
		1405	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1406	PPCODE:
		1407	{
		1408	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1409	int fd = s_fileno_croak (fh, 0);
		1410	dREQ;
		1411
		1412	if (expect_false (close_fd < 0))
707	{	1413	{
708	int pipefd [2];	1414	int pipefd [2];
709		1415
		1416	if (
		1417	#ifdef _WIN32
		1418	_pipe (pipefd, 1, _O_BINARY) < 0
		1419	#else
710	if (pipe (pipefd) < 0	1420	pipe (pipefd) < 0
711	|| close (pipefd [1]) < 0
712	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1421	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1422	#endif
		1423	|| close (pipefd [1]) < 0
		1424	)
713	abort (); /*D*/	1425	abort (); /*D*/
714		1426
715	close_pipe = pipefd [0];	1427	close_fd = pipefd [0];
716	}	1428	}
717		1429
718	req->type = EIO_DUP2;	1430	req->type = EIO_DUP2;
719	req->int1 = close_pipe;	1431	req->int1 = close_fd;
720	req->sv2 = newSVsv (fh);	1432	req->sv2 = newSVsv (fh);
721	req->int2 = fd;	1433	req->int2 = fd;
722		1434
723	REQ_SEND (req);	1435	REQ_SEND;
724	}	1436	}
725		1437
726	void	1438	void
		1439	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1440	PPCODE:
		1441	{
		1442	int fd = s_fileno_croak (fh, 0);
		1443	dREQ;
		1444
		1445	req->type = EIO_SEEK;
		1446	req->sv1 = newSVsv (fh);
		1447	req->int1 = fd;
		1448	req->offs = SvVAL64 (offset);
		1449	req->int2 = whence;
		1450
		1451	REQ_SEND;
		1452	}
		1453
		1454	void
727	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1455	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
728	ALIAS:	1456	ALIAS:
729	aio_read = EIO_READ	1457	aio_read = EIO_READ
730	aio_write = EIO_WRITE	1458	aio_write = EIO_WRITE
731	PROTOTYPE: $$$$$;$
732	PPCODE:	1459	PPCODE:
733	{	1460	{
734	STRLEN svlen;	1461	STRLEN svlen;
735	int fd = extract_fd (fh, ix == EIO_WRITE);	1462	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736	char *svptr = SvPVbyte (data, svlen);	1463	char *svptr = SvPVbyte (data, svlen);
737	UV len = SvUV (length);	1464	UV len = SvUV (length);
738		1465
739	if (dataoffset < 0)	1466	if (dataoffset < 0)
740	dataoffset += svlen;	1467	dataoffset += svlen;
…		…
749	len = svlen - dataoffset;	1476	len = svlen - dataoffset;
750	}	1477	}
751	else	1478	else
752	{	1479	{
753	/* read: check type and grow scalar as necessary */	1480	/* read: check type and grow scalar as necessary */
754	SvUPGRADE (data, SVt_PV);	1481	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
755	svptr = SvGROW (data, len + dataoffset + 1);	1482	svptr = sv_grow (data, len + dataoffset + 1);
		1483	else if (SvCUR (data) < len + dataoffset)
		1484	croak ("length + dataoffset outside of scalar, and cannot grow");
756	}	1485	}
757		1486
758	{	1487	{
759	dREQ;	1488	dREQ;
760		1489
…		…
776	REQ_SEND;	1505	REQ_SEND;
777	}	1506	}
778	}	1507	}
779		1508
780	void	1509	void
781	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1510	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
782	PROTOTYPE: $$;$	1511	ALIAS:
		1512	aio_ioctl = EIO_IOCTL
		1513	aio_fcntl = EIO_FCNTL
783	PPCODE:	1514	PPCODE:
784	{	1515	{
785	SV *data;	1516	int fd = s_fileno_croak (fh, 0);
		1517	char *svptr;
		1518
		1519	if (SvPOK (arg) || !SvNIOK (arg))
		1520	{
		1521	STRLEN svlen;
		1522	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1523	#ifdef IOCPARM_LEN
		1524	STRLEN need = IOCPARM_LEN (request);
		1525	#else
		1526	STRLEN need = 256;
		1527	#endif
		1528
		1529	if (svlen < need)
		1530	svptr = SvGROW (arg, need);
		1531	}
		1532	else
		1533	svptr = (char *)SvIV (arg);
		1534
		1535	{
		1536	dREQ;
		1537
		1538	req->type = ix;
		1539	req->sv1 = newSVsv (fh);
		1540	req->int1 = fd;
		1541	req->int2 = (long)request;
		1542	req->sv2 = SvREFCNT_inc (arg);
		1543	req->ptr2 = svptr;
		1544
		1545	REQ_SEND;
		1546	}
		1547	}
		1548
		1549	void
		1550	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1551	ALIAS:
		1552	aio_readlink = EIO_READLINK
		1553	aio_realpath = EIO_REALPATH
		1554	PPCODE:
		1555	{
786	dREQ;	1556	dREQ;
787		1557
788	req->type = EIO_READLINK;	1558	req->type = ix;
789	req->sv1 = newSVsv (path);	1559	req_set_path1 (req, pathname);
790	req->ptr1 = SvPVbyte_nolen (req->sv1);
791		1560
792	REQ_SEND;	1561	REQ_SEND;
793	}	1562	}
794		1563
795	void	1564	void
796	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1565	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
797	PROTOTYPE: $$$$;$
798	PPCODE:	1566	PPCODE:
799	{	1567	{
800	int ifd = extract_fd (in_fh , 0);	1568	int ifd = s_fileno_croak (in_fh , 0);
801	int ofd = extract_fd (out_fh, 0);	1569	int ofd = s_fileno_croak (out_fh, 1);
802	dREQ;	1570	dREQ;
803		1571
804	req->type = EIO_SENDFILE;	1572	req->type = EIO_SENDFILE;
805	req->sv1 = newSVsv (out_fh);	1573	req->sv1 = newSVsv (out_fh);
806	req->int1 = ofd;	1574	req->int1 = ofd;
807	req->sv2 = newSVsv (in_fh);	1575	req->sv2 = newSVsv (in_fh);
808	req->int2 = ifd;	1576	req->int2 = ifd;
809	req->offs = SvVAL64 (in_offset);	1577	req->offs = in_offset;
810	req->size = length;	1578	req->size = length;
811		1579
812	REQ_SEND;	1580	REQ_SEND;
813	}	1581	}
814		1582
815	void	1583	void
816	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1584	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1585	PPCODE:
819	{	1586	{
820	int fd = extract_fd (fh, 0);	1587	int fd = s_fileno_croak (fh, 0);
821	dREQ;	1588	dREQ;
822		1589
823	req->type = EIO_READAHEAD;	1590	req->type = EIO_READAHEAD;
824	req->sv1 = newSVsv (fh);	1591	req->sv1 = newSVsv (fh);
825	req->int1 = fd;	1592	req->int1 = fd;
826	req->offs = SvVAL64 (offset);	1593	req->offs = offset;
827	req->size = length;	1594	req->size = length;
828		1595
829	REQ_SEND;	1596	REQ_SEND;
830	}	1597	}
831		1598
832	void	1599	void
833	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1600	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
834	ALIAS:	1601	ALIAS:
835	aio_stat = EIO_STAT	1602	aio_stat = EIO_STAT
836	aio_lstat = EIO_LSTAT	1603	aio_lstat = EIO_LSTAT
		1604	aio_statvfs = EIO_STATVFS
837	PPCODE:	1605	PPCODE:
838	{	1606	{
839	dREQ;	1607	dREQ;
840		1608
841	req->sv1 = newSVsv (fh_or_path);	1609	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
842
843	if (SvPOK (req->sv1))
844	{
845	req->type = ix;
846	req->ptr1 = SvPVbyte_nolen (req->sv1);
847	}
848	else
849	{
850	req->type = EIO_FSTAT;
851	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852	}
853		1610
854	REQ_SEND;	1611	REQ_SEND;
855	}	1612	}
856		1613
		1614	UV
		1615	major (UV dev)
		1616	ALIAS:
		1617	minor = 1
		1618	CODE:
		1619	RETVAL = ix ? minor (dev) : major (dev);
		1620	OUTPUT:
		1621	RETVAL
		1622
		1623	UV
		1624	makedev (UV maj, UV min)
		1625	CODE:
		1626	RETVAL = makedev (maj, min);
		1627	OUTPUT:
		1628	RETVAL
		1629
857	void	1630	void
858	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1631	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
859	PPCODE:	1632	PPCODE:
860	{	1633	{
861	dREQ;	1634	dREQ;
862		1635
863	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1636	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
864	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1637	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
865	req->sv1 = newSVsv (fh_or_path);	1638	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
866
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_UTIME;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FUTIME;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1639
878	REQ_SEND;	1640	REQ_SEND;
879	}	1641	}
880		1642
881	void	1643	void
882	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1644	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
883	PPCODE:	1645	PPCODE:
884	{	1646	{
885	dREQ;	1647	dREQ;
886		1648
887	req->sv1 = newSVsv (fh_or_path);
888	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1649	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
889		1650	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
890	if (SvPOK (req->sv1))
891	{
892	req->type = EIO_TRUNCATE;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FTRUNCATE;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1651
901	REQ_SEND;	1652	REQ_SEND;
902	}	1653	}
903		1654
904	void	1655	void
905	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1656	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
906	ALIAS:
907	aio_chmod = EIO_CHMOD
908	aio_mkdir = EIO_MKDIR
909	PPCODE:	1657	PPCODE:
910	{	1658	{
911	dREQ;	1659	dREQ;
912		1660
913	req->int2 = mode;	1661	req->int2 = mode;
914	req->sv1 = newSVsv (fh_or_path);	1662	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
915
916	if (SvPOK (req->sv1))
917	{
918	req->type = ix;
919	req->ptr1 = SvPVbyte_nolen (req->sv1);
920	}
921	else
922	{
923	req->type = EIO_FCHMOD;
924	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
925	}
926		1663
927	REQ_SEND;	1664	REQ_SEND;
928	}	1665	}
929		1666
930	void	1667	void
931	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1668	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
932	PPCODE:	1669	PPCODE:
933	{	1670	{
934	dREQ;	1671	dREQ;
935		1672
936	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1673	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
937	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1674	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
938	req->sv1 = newSVsv (fh_or_path);	1675	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
939
940	if (SvPOK (req->sv1))
941	{
942	req->type = EIO_CHOWN;
943	req->ptr1 = SvPVbyte_nolen (req->sv1);
944	}
945	else
946	{
947	req->type = EIO_FCHOWN;
948	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
949	}
950		1676
951	REQ_SEND;	1677	REQ_SEND;
952	}	1678	}
953		1679
954	void	1680	void
955	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1681	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
956	PPCODE:	1682	PPCODE:
957	{	1683	{
958	dREQ;	1684	dREQ;
959		1685
960	req->type = EIO_READDIR;	1686	req->type = EIO_READDIR;
961	req->sv1 = newSVsv (pathname);
962	req->ptr1 = SvPVbyte_nolen (req->sv1);
963	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1687	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
964		1688
965	if (flags & EIO_READDIR_DENTS)	1689	if (flags & EIO_READDIR_DENTS)
966	req->int1 |= EIO_READDIR_CUSTOM2;	1690	req->int1 |= EIO_READDIR_CUSTOM2;
967		1691
		1692	req_set_path1 (req, pathname);
		1693
968	REQ_SEND;	1694	REQ_SEND;
969	}	1695	}
970		1696
971	void	1697	void
		1698	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	dREQ;
		1702
		1703	req->type = EIO_MKDIR;
		1704	req->int2 = mode;
		1705	req_set_path1 (req, pathname);
		1706
		1707	REQ_SEND;
		1708	}
		1709
		1710	void
972	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1711	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
973	ALIAS:	1712	ALIAS:
974	aio_unlink = EIO_UNLINK	1713	aio_unlink = EIO_UNLINK
975	aio_rmdir = EIO_RMDIR	1714	aio_rmdir = EIO_RMDIR
976	aio_readdir = EIO_READDIR	1715	aio_readdir = EIO_READDIR
977	PPCODE:	1716	PPCODE:
978	{	1717	{
979	dREQ;	1718	dREQ;
980		1719
981	req->type = ix;	1720	req->type = ix;
982	req->sv1 = newSVsv (pathname);	1721	req_set_path1 (req, pathname);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);
984		1722
985	REQ_SEND;	1723	REQ_SEND;
986	}	1724	}
987		1725
988	void	1726	void
989	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1727	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
990	ALIAS:	1728	ALIAS:
991	aio_link = EIO_LINK	1729	aio_link = EIO_LINK
992	aio_symlink = EIO_SYMLINK	1730	aio_symlink = EIO_SYMLINK
993	aio_rename = EIO_RENAME	1731	aio_rename = EIO_RENAME
994	PPCODE:	1732	PPCODE:
995	{	1733	{
		1734	eio_wd wd2 = 0;
996	dREQ;	1735	dREQ;
997		1736
998	req->type = ix;	1737	req->type = ix;
999	req->sv1 = newSVsv (oldpath);	1738	req_set_path1 (req, oldpath);
1000	req->ptr1 = SvPVbyte_nolen (req->sv1);	1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1001	req->sv2 = newSVsv (newpath);	1740	req->int3 = (long)wd2;
1002	req->ptr2 = SvPVbyte_nolen (req->sv2);
1003		1741
1004	REQ_SEND;	1742	REQ_SEND;
1005	}	1743	}
1006		1744
1007	void	1745	void
		1746	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1747	PPCODE:
		1748	{
		1749	eio_wd wd2 = 0;
		1750	dREQ;
		1751
		1752	req->type = EIO_RENAME;
		1753	req_set_path1 (req, oldpath);
		1754	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1755	req->int2 = flags;
		1756	req->int3 = (long)wd2;
		1757
		1758	REQ_SEND;
		1759	}
		1760
		1761	void
1008	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1762	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1009	PPCODE:	1763	PPCODE:
1010	{	1764	{
1011	dREQ;	1765	dREQ;
1012		1766
1013	req->type = EIO_MKNOD;	1767	req->type = EIO_MKNOD;
1014	req->sv1 = newSVsv (pathname);
1015	req->ptr1 = SvPVbyte_nolen (req->sv1);
1016	req->int2 = (mode_t)mode;	1768	req->int2 = (mode_t)mode;
1017	req->offs = dev;	1769	req->offs = dev;
		1770	req_set_path1 (req, pathname);
1018		1771
1019	REQ_SEND;	1772	REQ_SEND;
1020	}	1773	}
1021		1774
1022	void	1775	void
		1776	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1777	ALIAS:
		1778	aio_mtouch = EIO_MTOUCH
		1779	aio_msync = EIO_MSYNC
		1780	PPCODE:
		1781	{
		1782	STRLEN svlen;
		1783	char *svptr = SvPVbyte (data, svlen);
		1784	UV len = SvUV (length);
		1785
		1786	if (flags < 0)
		1787	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1788
		1789	if (offset < 0)
		1790	offset += svlen;
		1791
		1792	if (offset < 0 || offset > svlen)
		1793	croak ("offset outside of scalar");
		1794
		1795	if (!SvOK (length) || len + offset > svlen)
		1796	len = svlen - offset;
		1797
		1798	{
		1799	dREQ;
		1800
		1801	req->type = ix;
		1802	req->sv2 = SvREFCNT_inc (data);
		1803	req->ptr2 = (char *)svptr + offset;
		1804	req->size = len;
		1805	req->int1 = flags;
		1806
		1807	REQ_SEND;
		1808	}
		1809	}
		1810
		1811	void
		1812	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1813	PPCODE:
		1814	{
		1815	STRLEN svlen;
		1816	char *svptr = SvPVbyte (data, svlen);
		1817	UV len = SvUV (length);
		1818
		1819	if (offset < 0)
		1820	offset += svlen;
		1821
		1822	if (offset < 0 || offset > svlen)
		1823	croak ("offset outside of scalar");
		1824
		1825	if (!SvOK (length) || len + offset > svlen)
		1826	len = svlen - offset;
		1827
		1828	{
		1829	dREQ;
		1830
		1831	req->type = EIO_MLOCK;
		1832	req->sv2 = SvREFCNT_inc (data);
		1833	req->ptr2 = (char *)svptr + offset;
		1834	req->size = len;
		1835
		1836	REQ_SEND;
		1837	}
		1838	}
		1839
		1840	void
		1841	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1842	PPCODE:
		1843	{
		1844	dREQ;
		1845
		1846	req->type = EIO_MLOCKALL;
		1847	req->int1 = flags;
		1848
		1849	REQ_SEND;
		1850	}
		1851
		1852	void
		1853	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1854	PPCODE:
		1855	{
		1856	int fd = s_fileno_croak (fh, 0);
		1857	dREQ;
		1858
		1859	req->type = EIO_CUSTOM;
		1860	req->sv1 = newSVsv (fh);
		1861	req->int1 = fd;
		1862
		1863	req->feed = fiemap;
		1864	#if HAVE_FIEMAP
		1865	/* keep our fingers crossed that the next two types are 64 bit */
		1866	req->offs = start;
		1867	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1868	req->int2 = flags;
		1869	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1870	#endif
		1871
		1872	REQ_SEND;
		1873	}
		1874
		1875	void
		1876	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1877	PPCODE:
		1878	{
		1879	char *svptr = 0;
		1880
		1881	sv_clear_foreign (data);
		1882
		1883	if (length) /* known length, directly read into scalar */
		1884	{
		1885	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1886	svptr = sv_grow (data, length + 1);
		1887	else if (SvCUR (data) < length)
		1888	croak ("length outside of scalar, and cannot grow");
		1889	else
		1890	svptr = SvPVbyte_nolen (data);
		1891	}
		1892
		1893	{
		1894	dREQ;
		1895
		1896	req->type = EIO_SLURP;
		1897	req_set_path1 (req, pathname);
		1898	req->offs = offset;
		1899	req->size = length;
		1900	req->sv2 = SvREFCNT_inc (data);
		1901	req->ptr2 = svptr;
		1902
		1903	if (!SvREADONLY (data))
		1904	{
		1905	SvREADONLY_on (data);
		1906	req->flags |= FLAG_SV2_RO_OFF;
		1907	}
		1908
		1909	REQ_SEND;
		1910	}
		1911	}
		1912
		1913	void
1023	aio_busy (double delay, SV *callback=&PL_sv_undef)	1914	aio_busy (double delay, SV *callback = &PL_sv_undef)
1024	PPCODE:	1915	PPCODE:
1025	{	1916	{
1026	dREQ;	1917	dREQ;
1027		1918
1028	req->type = EIO_BUSY;	1919	req->type = EIO_BUSY;
…		…
1030		1921
1031	REQ_SEND;	1922	REQ_SEND;
1032	}	1923	}
1033		1924
1034	void	1925	void
1035	aio_group (SV *callback=&PL_sv_undef)	1926	aio_group (SV *callback = &PL_sv_undef)
1036	PROTOTYPE: ;$
1037	PPCODE:	1927	PPCODE:
1038	{	1928	{
1039	dREQ;	1929	dREQ;
1040		1930
1041	req->type = EIO_GROUP;	1931	req->type = EIO_GROUP;
1042		1932
		1933	PUTBACK;
1043	req_submit (req);	1934	req_submit (req);
		1935	SPAGAIN;
		1936
1044	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1937	XPUSHs (req_sv (req, aio_grp_stash));
1045	}	1938	}
1046		1939
1047	void	1940	void
1048	aio_nop (SV *callback=&PL_sv_undef)	1941	aio_nop (SV *callback = &PL_sv_undef)
1049	ALIAS:	1942	ALIAS:
1050	aio_nop = EIO_NOP	1943	aio_nop = EIO_NOP
1051	aio_sync = EIO_SYNC	1944	aio_sync = EIO_SYNC
1052	PPCODE:	1945	PPCODE:
1053	{	1946	{
…		…
1057		1950
1058	REQ_SEND;	1951	REQ_SEND;
1059	}	1952	}
1060		1953
1061	int	1954	int
1062	aioreq_pri (int pri = 0)	1955	aioreq_pri (int pri = NO_INIT)
1063	PROTOTYPE: ;$
1064	CODE:	1956	CODE:
1065	RETVAL = next_pri;	1957	RETVAL = next_pri;
1066	if (items > 0)	1958	if (items > 0)
1067	{	1959	{
1068	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1960	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1080	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1972	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081	next_pri = nice;	1973	next_pri = nice;
1082		1974
1083	void	1975	void
1084	flush ()	1976	flush ()
1085	PROTOTYPE:
1086	CODE:	1977	CODE:
1087	while (eio_nreqs ())	1978	while (eio_nreqs ())
1088	{	1979	{
1089	poll_wait ();	1980	poll_wait ();
1090	poll_cb ();	1981	poll_cb ();
1091	}	1982	}
1092		1983
1093	int	1984	int
1094	poll()	1985	poll ()
1095	PROTOTYPE:
1096	CODE:	1986	CODE:
1097	poll_wait ();	1987	poll_wait ();
1098	RETVAL = poll_cb ();	1988	RETVAL = poll_cb ();
1099	OUTPUT:	1989	OUTPUT:
1100	RETVAL	1990	RETVAL
1101		1991
1102	int	1992	int
1103	poll_fileno()	1993	poll_fileno ()
1104	PROTOTYPE:
1105	CODE:	1994	CODE:
1106	RETVAL = respipe [0];	1995	RETVAL = s_epipe_fd (&respipe);
1107	OUTPUT:	1996	OUTPUT:
1108	RETVAL	1997	RETVAL
1109		1998
1110	int	1999	int
1111	poll_cb(...)	2000	poll_cb (...)
1112	PROTOTYPE:	2001	PROTOTYPE:
1113	CODE:	2002	CODE:
1114	RETVAL = poll_cb ();	2003	RETVAL = poll_cb ();
1115	OUTPUT:	2004	OUTPUT:
1116	RETVAL	2005	RETVAL
1117		2006
1118	void	2007	void
1119	poll_wait()	2008	poll_wait ()
1120	PROTOTYPE:
1121	CODE:	2009	CODE:
1122	poll_wait ();	2010	poll_wait ();
1123		2011
1124	int	2012	int
1125	nreqs()	2013	nreqs ()
1126	PROTOTYPE:
1127	CODE:	2014	CODE:
1128	RETVAL = eio_nreqs ();	2015	RETVAL = eio_nreqs ();
1129	OUTPUT:	2016	OUTPUT:
1130	RETVAL	2017	RETVAL
1131		2018
1132	int	2019	int
1133	nready()	2020	nready ()
1134	PROTOTYPE:
1135	CODE:	2021	CODE:
1136	RETVAL = eio_nready ();	2022	RETVAL = eio_nready ();
1137	OUTPUT:	2023	OUTPUT:
1138	RETVAL	2024	RETVAL
1139		2025
1140	int	2026	int
1141	npending()	2027	npending ()
1142	PROTOTYPE:
1143	CODE:	2028	CODE:
1144	RETVAL = eio_npending ();	2029	RETVAL = eio_npending ();
1145	OUTPUT:	2030	OUTPUT:
1146	RETVAL	2031	RETVAL
1147		2032
1148	int	2033	int
1149	nthreads()	2034	nthreads ()
1150	PROTOTYPE:
1151	CODE:	2035	CODE:
1152	RETVAL = eio_nthreads ();	2036	RETVAL = eio_nthreads ();
1153	OUTPUT:	2037	OUTPUT:
1154	RETVAL	2038	RETVAL
1155		2039
		2040	int
		2041	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2042	CODE:
		2043	RETVAL = posix_fadvise (fh, offset, length, advice);
		2044	OUTPUT:
		2045	RETVAL
		2046
		2047	IV
		2048	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2049	CODE:
		2050	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2051	OUTPUT:
		2052	RETVAL
		2053
		2054	void
		2055	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2056	PPCODE:
		2057	sv_clear_foreign (scalar);
		2058	{
		2059	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2060	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2061	if (addr == (void *)-1)
		2062	XSRETURN_NO;
		2063
		2064	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2065
		2066	if (!(prot & PROT_WRITE))
		2067	SvREADONLY_on (scalar);
		2068
		2069	XSRETURN_YES;
		2070	}
		2071
		2072	void
		2073	munmap (SV *scalar)
		2074	CODE:
		2075	sv_clear_foreign (scalar);
		2076
		2077	SV *
		2078	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2079	CODE:
		2080	{
		2081	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2082	void *new;
		2083
		2084	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2085	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2086
		2087	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2088
		2089	RETVAL = &PL_sv_no;
		2090
		2091	if (new != (void *)-1)
		2092	{
		2093	RETVAL = new == (void *)mg->mg_ptr
		2094	? newSVpvn ("0 but true", 10)
		2095	: &PL_sv_yes;
		2096
		2097	mg->mg_ptr = (char *)new;
		2098	mg->mg_obj = (SV *)new_length;
		2099
		2100	SvPVX (scalar) = mg->mg_ptr;
		2101	SvCUR_set (scalar, new_length);
		2102	}
		2103	}
		2104	OUTPUT:
		2105	RETVAL
		2106
		2107	int
		2108	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2109	ALIAS:
		2110	mprotect = 1
		2111	CODE:
		2112	{
		2113	STRLEN svlen;
		2114	void *addr = SvPVbyte (scalar, svlen);
		2115	STRLEN len = SvUV (length);
		2116
		2117	if (offset < 0)
		2118	offset += svlen;
		2119
		2120	if (offset < 0 || offset > svlen)
		2121	croak ("offset outside of scalar");
		2122
		2123	if (!SvOK (length) || len + offset > svlen)
		2124	len = svlen - offset;
		2125
		2126	addr = (void *)(((intptr_t)addr) + offset);
		2127	eio_page_align (&addr, &len);
		2128
		2129	switch (ix)
		2130	{
		2131	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2132	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2133	}
		2134	}
		2135	OUTPUT:
		2136	RETVAL
		2137
		2138	int
		2139	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2140	CODE:
		2141	{
		2142	STRLEN svlen;
		2143	void *addr = SvPVbyte (scalar, svlen);
		2144	size_t len = SvUV (length);
		2145
		2146	if (offset < 0)
		2147	offset += svlen;
		2148
		2149	if (offset < 0 || offset > svlen)
		2150	croak ("offset outside of scalar");
		2151
		2152	if (!SvOK (length) || len + offset > svlen)
		2153	len = svlen - offset;
		2154
		2155	addr = (void *)(((intptr_t)addr) + offset);
		2156	eio_page_align (&addr, &len);
		2157	#if _POSIX_MEMLOCK_RANGE
		2158	RETVAL = munlock (addr, len);
		2159	#else
		2160	RETVAL = EIO_ENOSYS ();
		2161	#endif
		2162	}
		2163	OUTPUT:
		2164	RETVAL
		2165
		2166	int
		2167	munlockall ()
		2168	CODE:
		2169	#if _POSIX_MEMLOCK
		2170	munlockall ();
		2171	#else
		2172	RETVAL = EIO_ENOSYS ();
		2173	#endif
		2174	OUTPUT:
		2175	RETVAL
		2176
		2177	int
		2178	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2179	CODE:
		2180	{
		2181	#if HAVE_LINUX_SPLICE
		2182	loff_t off_in_, off_out_;
		2183	RETVAL = splice (
		2184	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2185	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2186	length, flags
		2187	);
		2188	#else
		2189	RETVAL = EIO_ENOSYS ();
		2190	#endif
		2191	}
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	int
		2196	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2197	CODE:
		2198	#if HAVE_LINUX_SPLICE
		2199	RETVAL = tee (rfh, wfh, length, flags);
		2200	#else
		2201	RETVAL = EIO_ENOSYS ();
		2202	#endif
		2203	OUTPUT:
		2204	RETVAL
		2205
		2206	int
		2207	pipesize (aio_rfd rfh, int new_size = -1)
		2208	PROTOTYPE: $;$
		2209	CODE:
		2210	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2211	if (new_size >= 0)
		2212	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2213	else
		2214	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2215	#else
		2216	errno = ENOSYS;
		2217	RETVAL = -1;
		2218	#endif
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	void
		2223	pipe2 (int flags = 0)
		2224	PROTOTYPE: ;$
		2225	PPCODE:
		2226	{
		2227	int fd[2];
		2228	int res;
		2229
		2230	if (flags)
		2231	#if HAVE_PIPE2
		2232	res = pipe2 (fd, flags);
		2233	#else
		2234	res = (errno = ENOSYS, -1);
		2235	#endif
		2236	else
		2237	res = pipe (fd);
		2238
		2239	if (!res)
		2240	{
		2241	EXTEND (SP, 2);
		2242	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2243	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2244	}
		2245	}
		2246
		2247	void
		2248	eventfd (unsigned int initval = 0, int flags = 0)
		2249	PPCODE:
		2250	{
		2251	int fd;
		2252	#if HAVE_EVENTFD
		2253	fd = eventfd (initval, flags);
		2254	#else
		2255	fd = (errno = ENOSYS, -1);
		2256	#endif
		2257
		2258	XPUSHs (newmortalFH (fd, O_RDWR));
		2259	}
		2260
		2261	void
		2262	timerfd_create (int clockid, int flags = 0)
		2263	PPCODE:
		2264	{
		2265	int fd;
		2266	#if HAVE_TIMERFD
		2267	fd = timerfd_create (clockid, flags);
		2268	#else
		2269	fd = (errno = ENOSYS, -1);
		2270	#endif
		2271
		2272	XPUSHs (newmortalFH (fd, O_RDWR));
		2273	}
		2274
		2275	void
		2276	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2277	PPCODE:
		2278	{
		2279	int fd = s_fileno_croak (fh, 0);
		2280	#if HAVE_TIMERFD
		2281	int res;
		2282	struct itimerspec its, ots;
		2283
		2284	ts_set (&its.it_interval, interval);
		2285	ts_set (&its.it_value , value);
		2286	res = timerfd_settime (fd, flags, &its, &ots);
		2287
		2288	if (!res)
		2289	{
		2290	EXTEND (SP, 2);
		2291	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2292	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2293	}
		2294	#else
		2295	errno = ENOSYS;
		2296	#endif
		2297	}
		2298
		2299	void
		2300	timerfd_gettime (SV *fh)
		2301	PPCODE:
		2302	{
		2303	int fd = s_fileno_croak (fh, 0);
		2304	#if HAVE_TIMERFD
		2305	int res;
		2306	struct itimerspec ots;
		2307	res = timerfd_gettime (fd, &ots);
		2308
		2309	if (!res)
		2310	{
		2311	EXTEND (SP, 2);
		2312	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2313	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2314	}
		2315	#else
		2316	errno = ENOSYS;
		2317	#endif
		2318	}
		2319
		2320	UV
		2321	get_fdlimit ()
		2322	CODE:
		2323	#if HAVE_RLIMITS
		2324	struct rlimit rl;
		2325	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2326	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2327	#endif
		2328	XSRETURN_UNDEF;
		2329	OUTPUT:
		2330	RETVAL
		2331
		2332	void
		2333	min_fdlimit (UV limit = 0x7fffffffU)
		2334	CODE:
		2335	{
		2336	#if HAVE_RLIMITS
		2337	struct rlimit rl;
		2338	rlim_t orig_rlim_max;
		2339	UV bit;
		2340
		2341	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2342	goto fail;
		2343
		2344	if (rl.rlim_cur == RLIM_INFINITY)
		2345	XSRETURN_YES;
		2346
		2347	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2348
		2349	if (rl.rlim_cur < limit)
		2350	{
		2351	rl.rlim_cur = limit;
		2352
		2353	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2354	rl.rlim_max = rl.rlim_cur;
		2355	}
		2356
		2357	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2358	XSRETURN_YES;
		2359
		2360	if (errno == EPERM)
		2361	{
		2362	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2363	/* our limit overflows a system-wide limit */
		2364	/* try an adaptive algorithm, but do not lower the hardlimit */
		2365	rl.rlim_max = 0;
		2366	for (bit = 0x40000000U; bit; bit >>= 1)
		2367	{
		2368	rl.rlim_max |= bit;
		2369	rl.rlim_cur = rl.rlim_max;
		2370
		2371	/* nevr decrease the hard limit */
		2372	if (rl.rlim_max < orig_rlim_max)
		2373	break;
		2374
		2375	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2376	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2377	}
		2378
		2379	/* now, raise the soft limit to the max permitted */
		2380	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2381	{
		2382	rl.rlim_cur = rl.rlim_max;
		2383	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2384	errno = EPERM;
		2385	}
		2386	}
		2387	#endif
		2388	fail:
		2389	XSRETURN_UNDEF;
		2390	}
		2391
1156	void _on_next_submit (SV *cb)	2392	void _on_next_submit (SV *cb)
1157	CODE:	2393	CODE:
1158	SvREFCNT_dec (on_next_submit);	2394	SvREFCNT_dec (on_next_submit);
1159	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2395	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160		2396
1161	PROTOTYPES: DISABLE	2397	PROTOTYPES: DISABLE
1162		2398
		2399	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2400
		2401	BOOT:
		2402	{
		2403	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2404	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2405	}
		2406
		2407	void
		2408	DESTROY (SV *self)
		2409	CODE:
		2410	{
		2411	aio_wd wd = SvAIO_WD (self);
		2412	#if HAVE_AT
		2413	{
		2414	SV *callback = &PL_sv_undef;
		2415	dREQ; /* clobbers next_pri :/ */
		2416	next_pri = req->pri; /* restore next_pri */
		2417	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2418	req->type = EIO_WD_CLOSE;
		2419	req->wd = wd;
		2420	REQ_SEND;
		2421	}
		2422	#else
		2423	eio_wd_close_sync (wd);
		2424	#endif
		2425	}
		2426
1163	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2427	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1164		2428
1165	void	2429	void
1166	cancel (aio_req_ornot req)	2430	cancel (aio_req_ornot req)
1167	CODE:	2431	CODE:
1168	eio_cancel (req);	2432	eio_cancel (req);
1169		2433
1170	void	2434	void
1171	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2435	cb (aio_req_ornot req, SV *callback = NO_INIT)
1172	PPCODE:	2436	PPCODE:
1173	{	2437	{
1174	if (GIMME_V != G_VOID)	2438	if (GIMME_V != G_VOID)
1175	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2439	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176		2440
…		…
1241	limit (aio_req grp, int limit)	2505	limit (aio_req grp, int limit)
1242	CODE:	2506	CODE:
1243	eio_grp_limit (grp, limit);	2507	eio_grp_limit (grp, limit);
1244		2508
1245	void	2509	void
1246	feed (aio_req grp, SV *callback=&PL_sv_undef)	2510	feed (aio_req grp, SV *callback = &PL_sv_undef)
1247	CODE:	2511	CODE:
1248	{	2512	{
1249	SvREFCNT_dec (grp->sv2);	2513	SvREFCNT_dec (grp->sv2);
1250	grp->sv2 = newSVsv (callback);	2514	grp->sv2 = newSVsv (callback);
1251	grp->feed = aio_grp_feed;	2515	grp->feed = aio_grp_feed;

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