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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.156 by root, Thu Nov 12 00:01:52 2009 UTC vs.
Revision 1.263 by root, Sun Aug 12 06:03:20 2018 UTC

…		…
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		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
		23	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		24	# include <sys/mman.h>
		25	#endif
		26
		27	/* the incompetent fool that created musl keeps __linux__, refuses
		28	* to implement any linux standard apis, and also has no way to test
		29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
		31	*/
		32	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		33	# include <linux/fs.h>
		34	# ifdef FS_IOC_FIEMAP
		35	# include <linux/types.h>
		36	# include <linux/fiemap.h>
		37	# define HAVE_FIEMAP 1
		38	# endif
		39	#endif
		40
20	/* perl namespace pollution */	41	/* perl namespace pollution */
21	#undef VERSION	42	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		43
72	/* perl stupidly overrides readdir and maybe others */	44	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	45	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	46	#undef readdir
75	#undef opendir	47	#undef opendir
76	#undef closedir	48	#undef closedir
77		49
		50	#ifdef _WIN32
		51
		52	// perl overrides all those nice libc functions
		53
		54	#undef malloc
		55	#undef free
		56	#undef open
		57	#undef read
		58	#undef write
		59	#undef send
		60	#undef recv
		61	#undef stat
		62	#undef lstat
		63	#undef fstat
		64	#undef truncate
		65	#undef ftruncate
		66	#undef open
		67	#undef link
		68	#undef close
		69	#undef unlink
		70	#undef mkdir
		71	#undef rmdir
		72	#undef rename
		73	#undef lseek
		74	#undef opendir
		75	#undef readdir
		76	#undef closedir
		77	#undef chmod
		78	#undef fchmod
		79	#undef dup
		80	#undef dup2
		81	#undef abort
		82	#undef pipe
		83
		84	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	85	#define EIO_STRUCT_STATI64
79		86
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	87	#else
86	# define VAL64 NV	88
87	# define SvVAL64 SvNV	89	#include <sys/time.h>
88	# define newSVval64 newSVnv	90	#include <sys/select.h>
		91	#include <unistd.h>
		92	#include <utime.h>
		93	#include <signal.h>
		94
		95	#define EIO_STRUCT_STAT Stat_t
		96
89	#endif	97	#endif
90		98
91	/*****************************************************************************/	99	/*****************************************************************************/
92		100
93	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
101		109
102	/*****************************************************************************/	110	/*****************************************************************************/
103		111
		112	#include "config.h"
		113
		114	#if HAVE_ST_XTIMENSEC
		115	# define ATIMENSEC PL_statcache.st_atimensec
		116	# define MTIMENSEC PL_statcache.st_mtimensec
		117	# define CTIMENSEC PL_statcache.st_ctimensec
		118	#elif HAVE_ST_XTIMESPEC
		119	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		120	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		121	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		122	#else
		123	# define ATIMENSEC 0
		124	# define MTIMENSEC 0
		125	# define CTIMENSEC 0
		126	#endif
		127
		128	#include "schmorp.h"
		129
		130	#if HAVE_EVENTFD
		131	# include <sys/eventfd.h>
		132	#endif
		133
		134	#if HAVE_TIMERFD
		135	# include <sys/timerfd.h>
		136	#endif
		137
		138	#if HAVE_RLIMITS
		139	#include <sys/time.h>
		140	#include <sys/resource.h>
		141	#endif
		142
104	typedef SV SV8; /* byte-sv, used for argument-checking */	143	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	144	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	145	typedef int aio_wfd; /* write file descriptor */
107		146
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	147	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		148
110	#define EIO_REQ_MEMBERS \	149	#define EIO_REQ_MEMBERS \
111	SV *callback; \	150	SV *callback; \
112	SV *sv1, *sv2; \	151	SV *sv1, *sv2; \
		152	SV *sv3, *sv4; \
113	STRLEN stroffset; \	153	STRLEN stroffset; \
114	SV *self;	154	SV *self;
115		155
116	#define EIO_NO_WRAPPERS 1	156	#define EIO_NO_WRAPPERS 1
117		157
118	#include "libeio/eio.h"	158	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		159
145	static int req_invoke (eio_req *req);	160	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	161	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	162	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	163	#define EIO_DESTROY(req) req_destroy (req)
149		164
		165	#include "libeio/eio.c"
		166
		167	#if !HAVE_POSIX_FADVISE
		168	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		169	#endif
		170
		171	#if !HAVE_POSIX_MADVISE
		172	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		173	#endif
		174
		175	#ifndef MAP_ANONYMOUS
		176	# ifdef MAP_ANON
		177	# define MAP_ANONYMOUS MAP_ANON
		178	# else
		179	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		180	# endif
		181	#endif
		182
		183	#ifndef makedev
		184	# define makedev(maj,min) (((maj) << 8) | (min))
		185	#endif
		186	#ifndef major
		187	# define major(dev) ((dev) >> 8)
		188	#endif
		189	#ifndef minor
		190	# define minor(dev) ((dev) & 0xff)
		191	#endif
		192
		193	#if PAGESIZE <= 0
		194	# define PAGESIZE sysconf (_SC_PAGESIZE)
		195	#endif
		196
		197	/*****************************************************************************/
		198
		199	#if !_POSIX_MAPPED_FILES
		200	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		201	# define munmap(addr,length) EIO_ENOSYS ()
		202	#endif
		203
		204	#if !_POSIX_MEMORY_PROTECTION
		205	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !MREMAP_MAYMOVE
		209	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		210	#endif
		211
		212	#define FOREIGN_MAGIC PERL_MAGIC_ext
		213
		214	static int ecb_cold
		215	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		216	{
		217	int old_errno = errno;
		218	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		219	errno = old_errno;
		220
		221	mg->mg_obj = 0; /* just in case */
		222
		223	SvREADONLY_off (sv);
		224
		225	if (SvPVX (sv) != mg->mg_ptr)
		226	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		227
		228	SvCUR_set (sv, 0);
		229	SvPVX (sv) = 0;
		230	SvOK_off (sv);
		231
		232	return 0;
		233	}
		234
		235	static MGVTBL mmap_vtbl = {
		236	0, 0, 0, 0, mmap_free
		237	};
		238
		239	static int ecb_cold
		240	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		241	{
		242	free (mg->mg_ptr);
		243	mg->mg_obj = 0; /* just in case */
		244
		245	SvREADONLY_off (sv);
		246
		247	if (SvPVX (sv) != mg->mg_ptr)
		248	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		249
		250	SvCUR_set (sv, 0);
		251	SvPVX (sv) = 0;
		252	SvOK_off (sv);
		253
		254	return 0;
		255	}
		256
		257	static MGVTBL sysfree_vtbl = {
		258	0, 0, 0, 0, sysfree_free
		259	};
		260
		261	/*****************************************************************************/
		262
		263	/* helper: set scalar to foreign ptr with custom free */
		264	static void
		265	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		266	{
		267	sv_force_normal (sv);
		268
		269	/* we store the length in mg_obj, as namlen is I32 :/ */
		270	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		271	->mg_obj = (SV *)length;
		272
		273	SvUPGRADE (sv, SVt_PV); /* nop... */
		274
		275	if (SvLEN (sv))
		276	Safefree (SvPVX (sv));
		277
		278	SvPVX (sv) = (char *)addr;
		279	SvCUR_set (sv, length);
		280	SvLEN_set (sv, 0);
		281	SvPOK_only (sv);
		282	}
		283
		284	static void
		285	sv_clear_foreign (SV *sv)
		286	{
		287	/* todo: iterate over magic and only free ours, but of course */
		288	/* the perl5porters will call that (correct) behaviour buggy */
		289	sv_unmagic (sv, FOREIGN_MAGIC);
		290	}
		291
		292	/*****************************************************************************/
		293
		294	/* defines all sorts of constants to 0 unless they are already defined */
		295	/* also provides const_iv_ and const_niv_ macros for them */
		296	#include "def0.h"
		297
		298	/*****************************************************************************/
		299
		300	static void
		301	fiemap (eio_req *req)
		302	{
		303	req->result = -1;
		304
		305	#if HAVE_FIEMAP
		306	/* assume some c99 */
		307	struct fiemap *fiemap = 0;
		308	size_t end_offset;
		309	int count = req->int3;
		310
		311	req->flags |= EIO_FLAG_PTR1_FREE;
		312
		313	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		314	/* increase in 3.5kb steps */
		315	if (count < 0)
		316	count = 8;
		317
		318	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		319	errno = ENOMEM;
		320	if (!fiemap)
		321	return;
		322
		323	req->ptr1 = fiemap;
		324
		325	fiemap->fm_start = req->offs;
		326	fiemap->fm_length = req->size;
		327	fiemap->fm_flags = req->int2;
		328	fiemap->fm_extent_count = count;
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		331	return;
		332
		333	if (req->int3 >= 0 /* not autosizing */
		334	|| !fiemap->fm_mapped_extents /* no more extents */
		335	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		336	goto done;
		337
		338	/* else we have to loop -
		339	* it would be tempting (actually I tried that first) to just query the
		340	* number of extents needed, but linux often feels like not returning all
		341	* extents, without telling us it left any out. this complicates
		342	* this quite a bit.
		343	*/
		344
		345	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		346
		347	for (;;)
		348	{
		349	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		350	char scratch[3072];
		351	struct fiemap *incmap = (struct fiemap *)scratch;
		352
		353	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		354	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		355	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		356	incmap->fm_flags = fiemap->fm_flags;
		357	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		360	return;
		361
		362	if (!incmap->fm_mapped_extents)
		363	goto done;
		364
		365	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		366	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		367	errno = ENOMEM;
		368	if (!fiemap)
		369	return;
		370
		371	req->ptr1 = fiemap;
		372
		373	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		374	{
		375	struct fiemap_extent *e = incmap->fm_extents + count;
		376
		377	if (e->fe_logical + e->fe_length >= end_offset)
		378	goto done;
		379
		380	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		381
		382	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		383	goto done;
		384
		385	}
		386	}
		387
		388	done:
		389	req->result = 0;
		390
		391	#else
		392	errno = ENOSYS;
		393	#endif
		394	}
		395
		396	/*****************************************************************************/
		397
150	enum {	398	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	399	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	400	};
153		401
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	402	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	403	typedef eio_req *aio_req_ornot;
		404	typedef eio_wd aio_wd;
158		405
159	static SV *on_next_submit;	406	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	407	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	408	static int max_outstanding;
162		409
163	static s_epipe respipe;	410	static s_epipe respipe;
164		411
165	static void req_destroy (aio_req req);	412	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	413	static void req_cancel (aio_req req);
167		414
168	static void want_poll (void)	415	static void
		416	want_poll (void)
169	{	417	{
170	/* write a dummy byte to the pipe so fh becomes ready */	418	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	419	s_epipe_signal (&respipe);
172	}	420	}
173		421
174	static void done_poll (void)	422	static void
		423	done_poll (void)
175	{	424	{
176	/* read any signals sent by the worker threads */	425	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	426	s_epipe_drain (&respipe);
178	}	427	}
179		428
180	/* must be called at most once */	429	/* must be called at most once */
		430	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	431	req_sv (aio_req req, HV *stash)
182	{	432	{
183	if (!req->self)	433	if (!req->self)
184	{	434	{
185	req->self = (SV *)newHV ();	435	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	436	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	437	}
188		438
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	439	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	440	}
191		441
192	static aio_req SvAIO_REQ (SV *sv)	442	static SV *
		443	newSVaio_wd (aio_wd wd)
		444	{
		445	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		446	}
		447
		448	static aio_req
		449	SvAIO_REQ (SV *sv)
193	{	450	{
194	MAGIC *mg;	451	MAGIC *mg;
195		452
196	if (!SvROK (sv)	453	if (!SvROK (sv)
		454	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	455	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	456	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	457	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	458	croak ("object of class IO::AIO::REQ expected");
201		459
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	460	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		461
204	return mg ? (aio_req)mg->mg_ptr : 0;	462	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	463	}
206		464
		465	static aio_wd
		466	SvAIO_WD (SV *sv)
		467	{
		468	if (!SvROK (sv)
		469	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		470	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		471	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		472
		473	return (aio_wd)(long)SvIVX (SvRV (sv));
		474	}
		475
		476	static SV *
		477	newmortalFH (int fd, int flags)
		478	{
		479	if (fd < 0)
		480	return &PL_sv_undef;
		481
		482	GV *gv = (GV *)sv_newmortal ();
		483	char sym[64];
		484	int symlen;
		485
		486	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		487	gv_init (gv, aio_stash, sym, symlen, 0);
		488
		489	symlen = snprintf (
		490	sym,
		491	sizeof (sym),
		492	"%s&=%d",
		493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		494	fd
		495	);
		496
		497	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		498	? (SV *)gv : &PL_sv_undef;
		499	}
		500
		501	static void
207	static void aio_grp_feed (aio_req grp)	502	aio_grp_feed (aio_req grp)
208	{	503	{
209	if (grp->sv2 && SvOK (grp->sv2))	504	if (grp->sv2 && SvOK (grp->sv2))
210	{	505	{
211	dSP;	506	dSP;
212		507
…		…
220	FREETMPS;	515	FREETMPS;
221	LEAVE;	516	LEAVE;
222	}	517	}
223	}	518	}
224		519
		520	static void
225	static void req_submit (eio_req *req)	521	req_submit (eio_req *req)
226	{	522	{
227	eio_submit (req);	523	eio_submit (req);
228		524
229	if (expect_false (on_next_submit))	525	if (expect_false (on_next_submit))
230	{	526	{
…		…
237	PUTBACK;	533	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	534	call_sv (cb, G_DISCARD | G_EVAL);
239	}	535	}
240	}	536	}
241		537
		538	static int
242	static int req_invoke (eio_req *req)	539	req_invoke (eio_req *req)
243	{	540	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	541	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	542	SvREADONLY_off (req->sv2);
248		543
249	if (!EIO_CANCELLED (req) && req->callback)	544	if (!EIO_CANCELLED (req) && req->callback)
250	{	545	{
		546	dSP;
		547	static SV *sv_result_cache; /* caches the result integer SV */
		548	SV *sv_result;
		549
251	ENTER;	550	ENTER;
252	SAVETMPS;	551	SAVETMPS;
253	PUSHMARK (SP);	552	PUSHMARK (SP);
254	EXTEND (SP, 1);	553	EXTEND (SP, 1);
255		554
		555	/* do not recreate the result IV from scratch each time */
		556	if (expect_true (sv_result_cache))
		557	{
		558	sv_result = sv_result_cache; sv_result_cache = 0;
		559	SvIV_set (sv_result, req->result);
		560	SvIOK_only (sv_result);
		561	}
		562	else
		563	{
		564	sv_result = newSViv (req->result);
		565	SvREADONLY_on (sv_result);
		566	}
		567
256	switch (req->type)	568	switch (req->type)
257	{	569	{
		570	case EIO_WD_OPEN:
		571	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		572	break;
		573
258	case EIO_READDIR:	574	case EIO_READDIR:
259	{	575	{
260	SV *rv = &PL_sv_undef;	576	SV *rv = &PL_sv_undef;
261		577
262	if (req->result >= 0)	578	if (req->result >= 0)
…		…
315	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	631	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
316	}	632	}
317	break;	633	break;
318		634
319	case EIO_OPEN:	635	case EIO_OPEN:
		636	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		637	break;
		638
		639	case EIO_STATVFS:
		640	case EIO_FSTATVFS:
320	{	641	{
321	/* convert fd to fh */
322	SV *fh = &PL_sv_undef;	642	SV *rv = &PL_sv_undef;
323		643
		644	#ifndef _WIN32
324	if (req->result >= 0)	645	if (req->result >= 0)
325	{	646	{
		647	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
326	GV *gv = (GV *)sv_newmortal ();	648	HV *hv = newHV ();
327	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	649	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
328	char sym [64];	650	* chooses to make it a struct.
329	int symlen;
330		651	*/
331	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	652	unsigned long fsid = 0;
332	gv_init (gv, aio_stash, sym, symlen, 0);	653	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
333		654
334	symlen = snprintf (	655	rv = sv_2mortal (newRV_noinc ((SV *)hv));
335	sym,
336	sizeof (sym),
337	"%s&=%d",
338	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
339	(int)req->result
340	);
341		656
342	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	657	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
343	fh = (SV *)gv;	658	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		659	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		660	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		661	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		662	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		663	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		664	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		665	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		666	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		667	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
344	}	668	}
		669	#endif
345		670
346	PUSHs (fh);	671	PUSHs (rv);
347	}	672	}
		673
348	break;	674	break;
349		675
350	case EIO_GROUP:	676	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	677	req->int1 = 2; /* mark group as finished */
352		678
…		…
364	case EIO_NOP:	690	case EIO_NOP:
365	case EIO_BUSY:	691	case EIO_BUSY:
366	break;	692	break;
367		693
368	case EIO_READLINK:	694	case EIO_READLINK:
		695	case EIO_REALPATH:
369	if (req->result > 0)	696	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	697	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	698	break;
372		699
373	case EIO_STAT:	700	case EIO_STAT:
374	case EIO_LSTAT:	701	case EIO_LSTAT:
375	case EIO_FSTAT:	702	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	703	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		704
377	PL_laststatval = req->result;	705	if (!(PL_laststatval = req->result))
		706	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	707	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	708
		709	PUSHs (sv_result);
		710	break;
		711
		712	case EIO_SEEK:
		713	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	714	break;
381		715
382	case EIO_READ:	716	case EIO_READ:
383	{	717	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	718	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	719	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	720	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	721	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	722	PUSHs (sv_result);
389	}	723	}
390	break;	724	break;
391		725
392	case EIO_DUP2:	726	case EIO_SLURP:
		727	{
		728	if (req->result >= 0)
		729	{
		730	/* if length was originally not known, we steal the malloc'ed memory */
		731	if (req->flags & EIO_FLAG_PTR2_FREE)
		732	{
		733	req->flags &= ~EIO_FLAG_PTR2_FREE;
		734	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		735	}
		736	else
		737	{
		738	SvCUR_set (req->sv2, req->result);
		739	*SvEND (req->sv2) = 0;
		740	SvPOK_only (req->sv2);
		741	}
		742
		743	SvSETMAGIC (req->sv2);
		744	}
		745
		746	PUSHs (sv_result);
		747	}
		748	break;
		749
		750	case EIO_CUSTOM:
		751	if (req->feed == fiemap)
		752	{
		753	#if HAVE_FIEMAP
		754	if (!req->result)
		755	{
		756	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		757
		758	if (fiemap->fm_extent_count)
		759	{
		760	AV *av = newAV ();
		761	int i;
		762
		763	while (fiemap->fm_mapped_extents)
		764	{
		765	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		766	AV *ext_av = newAV ();
		767
		768	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		769	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		770	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		771	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		772
		773	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		774	}
		775
		776	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		777	}
		778	else
		779	{
		780	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		781	PUSHs (sv_result);
		782	}
		783	}
		784	#endif
		785	}
		786	else
		787	PUSHs (sv_result);
		788	break;
		789
		790	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	791	if (req->result > 0)
394	req->result = 0;	792	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	793	/* FALLTHROUGH */
396		794
397	default:	795	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	796	PUSHs (sv_result);
399	break;	797	break;
400	}	798	}
401		799
402	errno = req->errorno;	800	errno = req->errorno;
403		801
404	PUTBACK;	802	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	803	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	804	SPAGAIN;
407		805
		806	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		807	SvREFCNT_dec (sv_result);
		808	else
		809	sv_result_cache = sv_result;
		810
408	FREETMPS;	811	FREETMPS;
409	LEAVE;	812	LEAVE;
410		813
411	PUTBACK;	814	PUTBACK;
412	}	815	}
413		816
414	return !!SvTRUE (ERRSV);	817	return !!SvTRUE (ERRSV);
415	}	818	}
416		819
		820	static void
417	static void req_destroy (aio_req req)	821	req_destroy (aio_req req)
418	{	822	{
419	if (req->self)	823	if (req->self)
420	{	824	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	825	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	826	SvREFCNT_dec (req->self);
423	}	827	}
424		828
425	SvREFCNT_dec (req->sv1);	829	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	830	SvREFCNT_dec (req->sv2);
		831	SvREFCNT_dec (req->sv3);
		832	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	833	SvREFCNT_dec (req->callback);
428		834
429	Safefree (req);	835	free (req);
430	}	836	}
431		837
		838	static void
432	static void req_cancel_subs (aio_req grp)	839	req_cancel_subs (aio_req grp)
433	{	840	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	841	if (grp->type != EIO_GROUP)
437	return;	842	return;
438		843
439	SvREFCNT_dec (grp->sv2);	844	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	845	grp->sv2 = 0;
441		846
442	eio_grp_cancel (grp);	847	eio_grp_cancel (grp);
443	}	848	}
444		849
445	static void	850	static void ecb_cold
446	create_respipe (void)	851	create_respipe (void)
447	{	852	{
448	if (s_epipe_renew (&respipe))	853	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	854	croak ("IO::AIO: unable to initialize result pipe");
450	}	855	}
451		856
452	static void poll_wait (void)	857	static void
		858	poll_wait (void)
453	{	859	{
454	while (eio_nreqs ())	860	while (eio_nreqs ())
455	{	861	{
456	int size;	862	int size;
457		863
458	X_LOCK (reslock);	864	X_LOCK (EIO_POOL->reslock);
459	size = res_queue.size;	865	size = EIO_POOL->res_queue.size;
460	X_UNLOCK (reslock);	866	X_UNLOCK (EIO_POOL->reslock);
461		867
462	if (size)	868	if (size)
463	return;	869	return;
464		870
465	etp_maybe_start_thread ();	871	etp_maybe_start_thread (EIO_POOL);
466		872
467	s_epipe_wait (&respipe);	873	s_epipe_wait (&respipe);
468	}	874	}
469	}	875	}
470		876
471	static int poll_cb (void)	877	static int
		878	poll_cb (void)
472	{	879	{
473	for (;;)	880	for (;;)
474	{	881	{
475	int res = eio_poll ();	882	int res = eio_poll ();
476		883
…		…
482		889
483	poll_wait ();	890	poll_wait ();
484	}	891	}
485	}	892	}
486		893
487	static void atfork_child (void)	894	static void ecb_cold
		895	reinit (void)
488	{	896	{
489	create_respipe ();	897	create_respipe ();
		898
		899	if (eio_init (want_poll, done_poll) < 0)
		900	croak ("IO::AIO: unable to initialise eio library");
490	}	901	}
		902
		903	/*****************************************************************************/
491		904
492	static SV *	905	static SV *
493	get_cb (SV *cb_sv)	906	get_cb (SV *cb_sv)
494	{	907	{
495	SvGETMAGIC (cb_sv);	908	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	909	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	910	}
498		911
		912	static aio_req ecb_noinline
		913	dreq (SV *callback)
		914	{
		915	SV *cb_cv;
		916	aio_req req;
		917	int req_pri = next_pri;
		918	next_pri = EIO_PRI_DEFAULT;
		919
		920	cb_cv = get_cb (callback);
		921
		922	req = calloc (sizeof (*req), 1);
		923	if (!req)
		924	croak ("out of memory during eio_req allocation");
		925
		926	req->callback = SvREFCNT_inc (cb_cv);
		927	req->pri = req_pri;
		928
		929	return req;
		930	}
		931
499	#define dREQ \	932	#define dREQ \
500	SV *cb_cv; \	933	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		934
514	#define REQ_SEND \	935	#define REQ_SEND \
515	PUTBACK; \	936	PUTBACK; \
516	req_submit (req); \	937	req_submit (req); \
517	SPAGAIN; \	938	SPAGAIN; \
518	\	939	\
519	if (GIMME_V != G_VOID) \	940	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	941	XPUSHs (req_sv (req, aio_req_stash));
521		942
		943	ecb_inline void
		944	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		945	{
		946	if (expect_false (SvROK (path)))
		947	{
		948	SV *rv = SvRV (path);
		949	SV *wdob;
		950
		951	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		952	{
		953	path = AvARRAY (rv)[1];
		954	wdob = AvARRAY (rv)[0];
		955
		956	if (SvOK (wdob))
		957	{
		958	*wd = SvAIO_WD (wdob);
		959	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		960	}
		961	else
		962	*wd = EIO_INVALID_WD;
		963	}
		964	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		965	{
		966	*wd = (aio_wd)(long)SvIVX (rv);
		967	*wdsv = SvREFCNT_inc_NN (rv);
		968	*ptr = ".";
		969	return; /* path set to "." */
		970	}
		971	else
		972	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		973	}
		974
		975	*pathsv = newSVsv (path);
		976	*ptr = SvPVbyte_nolen (*pathsv);
		977	}
		978
		979	static void ecb_noinline
		980	req_set_path1 (aio_req req, SV *path)
		981	{
		982	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		983	}
		984
		985	static void ecb_noinline
		986	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		987	{
		988	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		989
		990	switch (SvTYPE (rv))
		991	{
		992	case SVt_PVIO:
		993	case SVt_PVLV:
		994	case SVt_PVGV:
		995	req->type = type_fh;
		996	req->sv1 = newSVsv (fh_or_path);
		997	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		998	break;
		999
		1000	default:
		1001	req->type = type_path;
		1002	req_set_path1 (req, fh_or_path);
		1003	break;
		1004	}
		1005	}
		1006
		1007	/*****************************************************************************/
		1008
		1009	static void
		1010	ts_set (struct timespec *ts, NV value)
		1011	{
		1012	ts->tv_sec = value;
		1013	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1014	}
		1015
		1016	static NV
		1017	ts_get (const struct timespec *ts)
		1018	{
		1019	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1020	}
		1021
		1022	/*****************************************************************************/
		1023
		1024	XS(boot_IO__AIO) ecb_cold;
		1025
522	MODULE = IO::AIO PACKAGE = IO::AIO	1026	MODULE = IO::AIO PACKAGE = IO::AIO
523		1027
524	PROTOTYPES: ENABLE	1028	PROTOTYPES: ENABLE
525		1029
526	BOOT:	1030	BOOT:
527	{	1031	{
528	static const struct {	1032	static const struct {
529	const char *name;	1033	const char *name;
530	IV iv;	1034	IV iv;
531	} *civ, const_iv[] = {	1035	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	1036	# define const_niv(name, value) { # name, (IV) value },
		1037	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	1038	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	1039
		1040	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1041	/* the first block can be undef if missing */
535	const_iv (ENOSYS , ENOSYS)	1042	const_iv (ENOSYS)
536	const_iv (O_RDONLY, O_RDONLY)	1043	const_iv (EXDEV)
537	const_iv (O_WRONLY, O_WRONLY)	1044	const_iv (EBADR)
538	const_iv (O_CREAT , O_CREAT)	1045
539	const_iv (O_TRUNC , O_TRUNC)	1046	/* for lseek */
540	#ifndef _WIN32	1047	const_iv (SEEK_DATA)
541	const_iv (S_IFIFO , S_IFIFO)	1048	const_iv (SEEK_HOLE)
542	#endif	1049
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	1050	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1051	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	1052	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1053	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1054	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1055	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1056
		1057	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1058	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1059	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1060	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1061	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1062
		1063	/* the second block will be 0 when missing */
		1064	const_iv (O_ACCMODE)
		1065
		1066	const_iv (O_RDONLY)
		1067	const_iv (O_WRONLY)
		1068	const_iv (O_RDWR)
		1069	const_iv (O_CREAT)
		1070	const_iv (O_TRUNC)
		1071	const_iv (O_EXCL)
		1072	const_iv (O_APPEND)
		1073
		1074	const_iv (O_ASYNC)
		1075	const_iv (O_DIRECT)
		1076	const_iv (O_NOATIME)
		1077
		1078	const_iv (O_CLOEXEC)
		1079	const_iv (O_NOCTTY)
		1080	const_iv (O_NOFOLLOW)
		1081	const_iv (O_NONBLOCK)
		1082	const_iv (O_EXEC)
		1083	const_iv (O_SEARCH)
		1084	const_iv (O_DIRECTORY)
		1085	const_iv (O_DSYNC)
		1086	const_iv (O_RSYNC)
		1087	const_iv (O_SYNC)
		1088	const_iv (O_PATH)
		1089	const_iv (O_TMPFILE)
		1090	const_iv (O_TTY_INIT)
		1091
		1092	const_iv (S_IFIFO)
		1093	const_iv (S_IFCHR)
		1094	const_iv (S_IFBLK)
		1095	const_iv (S_IFLNK)
		1096	const_iv (S_IFREG)
		1097	const_iv (S_IFDIR)
		1098	const_iv (S_IFWHT)
		1099	const_iv (S_IFSOCK)
		1100	const_iv (S_IFMT)
		1101
		1102	const_iv (ST_RDONLY)
		1103	const_iv (ST_NOSUID)
		1104	const_iv (ST_NODEV)
		1105	const_iv (ST_NOEXEC)
		1106	const_iv (ST_SYNCHRONOUS)
		1107	const_iv (ST_MANDLOCK)
		1108	const_iv (ST_WRITE)
		1109	const_iv (ST_APPEND)
		1110	const_iv (ST_IMMUTABLE)
		1111	const_iv (ST_NOATIME)
		1112	const_iv (ST_NODIRATIME)
		1113	const_iv (ST_RELATIME)
		1114
		1115	const_iv (PROT_NONE)
		1116	const_iv (PROT_EXEC)
		1117	const_iv (PROT_READ)
		1118	const_iv (PROT_WRITE)
		1119
		1120	const_iv (MAP_PRIVATE)
		1121	const_iv (MAP_SHARED)
		1122	const_iv (MAP_FIXED)
		1123	const_iv (MAP_ANONYMOUS)
		1124
		1125	/* linuxish */
		1126	const_iv (MAP_LOCKED)
		1127	const_iv (MAP_NORESERVE)
		1128	const_iv (MAP_POPULATE)
		1129	const_iv (MAP_NONBLOCK)
		1130	const_iv (MAP_GROWSDOWN)
		1131	const_iv (MAP_32BIT)
		1132	const_iv (MAP_HUGETLB)
		1133	const_iv (MAP_STACK)
		1134
		1135	const_iv (MREMAP_MAYMOVE)
		1136	const_iv (MREMAP_FIXED)
		1137
		1138	const_iv (F_DUPFD_CLOEXEC)
		1139
		1140	const_iv (MSG_CMSG_CLOEXEC)
		1141	const_iv (SOCK_CLOEXEC)
		1142
		1143	const_iv (F_OFD_GETLK)
		1144	const_iv (F_OFD_SETLK)
		1145	const_iv (F_OFD_GETLKW)
		1146
		1147	const_iv (FIFREEZE)
		1148	const_iv (FITHAW)
		1149	const_iv (FITRIM)
		1150	const_iv (FICLONE)
		1151	const_iv (FICLONERANGE)
		1152	const_iv (FIDEDUPERANGE)
		1153
		1154	const_iv (FS_IOC_GETFLAGS)
		1155	const_iv (FS_IOC_SETFLAGS)
		1156	const_iv (FS_IOC_GETVERSION)
		1157	const_iv (FS_IOC_SETVERSION)
		1158	const_iv (FS_IOC_FIEMAP)
		1159	const_iv (FS_IOC_FSGETXATTR)
		1160	const_iv (FS_IOC_FSSETXATTR)
		1161	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1162	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1163	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1164
		1165	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1166
		1167	const_iv (FS_SECRM_FL)
		1168	const_iv (FS_UNRM_FL)
		1169	const_iv (FS_COMPR_FL)
		1170	const_iv (FS_SYNC_FL)
		1171	const_iv (FS_IMMUTABLE_FL)
		1172	const_iv (FS_APPEND_FL)
		1173	const_iv (FS_NODUMP_FL)
		1174	const_iv (FS_NOATIME_FL)
		1175	const_iv (FS_DIRTY_FL)
		1176	const_iv (FS_COMPRBLK_FL)
		1177	const_iv (FS_NOCOMP_FL)
		1178	const_iv (FS_ENCRYPT_FL)
		1179	const_iv (FS_BTREE_FL)
		1180	const_iv (FS_INDEX_FL)
		1181	const_iv (FS_JOURNAL_DATA_FL)
		1182	const_iv (FS_NOTAIL_FL)
		1183	const_iv (FS_DIRSYNC_FL)
		1184	const_iv (FS_TOPDIR_FL)
		1185	const_iv (FS_FL_USER_MODIFIABLE)
		1186
		1187	const_iv (FS_XFLAG_REALTIME)
		1188	const_iv (FS_XFLAG_PREALLOC)
		1189	const_iv (FS_XFLAG_IMMUTABLE)
		1190	const_iv (FS_XFLAG_APPEND)
		1191	const_iv (FS_XFLAG_SYNC)
		1192	const_iv (FS_XFLAG_NOATIME)
		1193	const_iv (FS_XFLAG_NODUMP)
		1194	const_iv (FS_XFLAG_RTINHERIT)
		1195	const_iv (FS_XFLAG_PROJINHERIT)
		1196	const_iv (FS_XFLAG_NOSYMLINKS)
		1197	const_iv (FS_XFLAG_EXTSIZE)
		1198	const_iv (FS_XFLAG_EXTSZINHERIT)
		1199	const_iv (FS_XFLAG_NODEFRAG)
		1200	const_iv (FS_XFLAG_FILESTREAM)
		1201	const_iv (FS_XFLAG_DAX)
		1202	const_iv (FS_XFLAG_HASATTR)
		1203
		1204	const_iv (FIEMAP_FLAG_SYNC)
		1205	const_iv (FIEMAP_FLAG_XATTR)
		1206	const_iv (FIEMAP_FLAGS_COMPAT)
		1207	const_iv (FIEMAP_EXTENT_LAST)
		1208	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1209	const_iv (FIEMAP_EXTENT_DELALLOC)
		1210	const_iv (FIEMAP_EXTENT_ENCODED)
		1211	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1212	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1213	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1214	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1215	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1216	const_iv (FIEMAP_EXTENT_MERGED)
		1217	const_iv (FIEMAP_EXTENT_SHARED)
		1218
		1219	const_iv (SPLICE_F_MOVE)
		1220	const_iv (SPLICE_F_NONBLOCK)
		1221	const_iv (SPLICE_F_MORE)
		1222	const_iv (SPLICE_F_GIFT)
		1223
		1224	const_iv (EFD_CLOEXEC)
		1225	const_iv (EFD_NONBLOCK)
		1226	const_iv (EFD_SEMAPHORE)
		1227
		1228	const_iv (CLOCK_REALTIME)
		1229	const_iv (CLOCK_MONOTONIC)
		1230	const_iv (CLOCK_BOOTTIME)
		1231	const_iv (CLOCK_REALTIME_ALARM)
		1232	const_iv (CLOCK_BOOTTIME_ALARM)
		1233
		1234	const_iv (TFD_NONBLOCK)
		1235	const_iv (TFD_CLOEXEC)
		1236
		1237	const_iv (TFD_TIMER_ABSTIME)
		1238	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1239
		1240	/* these are libeio constants, and are independent of gendef0 */
		1241	const_eio (SEEK_SET)
		1242	const_eio (SEEK_CUR)
		1243	const_eio (SEEK_END)
		1244
		1245	const_eio (MCL_FUTURE)
		1246	const_eio (MCL_CURRENT)
		1247
		1248	const_eio (MS_ASYNC)
		1249	const_eio (MS_INVALIDATE)
		1250	const_eio (MS_SYNC)
		1251
		1252	const_eio (MT_MODIFY)
549		1253
550	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1254	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551	const_eio (SYNC_FILE_RANGE_WRITE)	1255	const_eio (SYNC_FILE_RANGE_WRITE)
552	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1256	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1257
		1258	const_eio (FALLOC_FL_KEEP_SIZE)
		1259	const_eio (FALLOC_FL_PUNCH_HOLE)
		1260	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1261	const_eio (FALLOC_FL_ZERO_RANGE)
		1262	const_eio (FALLOC_FL_INSERT_RANGE)
		1263	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1264
		1265	const_eio (RENAME_NOREPLACE)
		1266	const_eio (RENAME_EXCHANGE)
		1267	const_eio (RENAME_WHITEOUT)
553		1268
554	const_eio (READDIR_DENTS)	1269	const_eio (READDIR_DENTS)
555	const_eio (READDIR_DIRS_FIRST)	1270	const_eio (READDIR_DIRS_FIRST)
556	const_eio (READDIR_STAT_ORDER)	1271	const_eio (READDIR_STAT_ORDER)
557	const_eio (READDIR_FOUND_UNKNOWN)	1272	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	};	1283	};
569		1284
570	aio_stash = gv_stashpv ("IO::AIO" , 1);	1285	aio_stash = gv_stashpv ("IO::AIO" , 1);
571	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1286	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1287	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1288	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
573		1289
574	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1290	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
575	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1291	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
576		1292
577	create_respipe ();	1293	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578		1294
579	if (eio_init (want_poll, done_poll) < 0)	1295	reinit ();
580	croak ("IO::AIO: unable to initialise eio library");
581
582	/* atfork child called in fifo order, so before eio's handler */
583	X_THREAD_ATFORK (0, 0, atfork_child);
584	}	1296	}
585		1297
586	void	1298	void
		1299	reinit ()
		1300	PROTOTYPE:
		1301
		1302	void
587	max_poll_reqs (int nreqs)	1303	max_poll_reqs (unsigned int nreqs)
588	PROTOTYPE: $	1304	PROTOTYPE: $
589	CODE:	1305	CODE:
590	eio_set_max_poll_reqs (nreqs);	1306	eio_set_max_poll_reqs (nreqs);
591		1307
592	void	1308	void
…		…
594	PROTOTYPE: $	1310	PROTOTYPE: $
595	CODE:	1311	CODE:
596	eio_set_max_poll_time (nseconds);	1312	eio_set_max_poll_time (nseconds);
597		1313
598	void	1314	void
599	min_parallel (int nthreads)	1315	min_parallel (unsigned int nthreads)
600	PROTOTYPE: $	1316	PROTOTYPE: $
601	CODE:	1317	CODE:
602	eio_set_min_parallel (nthreads);	1318	eio_set_min_parallel (nthreads);
603		1319
604	void	1320	void
605	max_parallel (int nthreads)	1321	max_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1322	PROTOTYPE: $
607	CODE:	1323	CODE:
608	eio_set_max_parallel (nthreads);	1324	eio_set_max_parallel (nthreads);
609		1325
610	void	1326	void
611	max_idle (int nthreads)	1327	max_idle (unsigned int nthreads)
612	PROTOTYPE: $	1328	PROTOTYPE: $
613	CODE:	1329	CODE:
614	eio_set_max_idle (nthreads);	1330	eio_set_max_idle (nthreads);
615		1331
616	void	1332	void
		1333	idle_timeout (unsigned int seconds)
		1334	PROTOTYPE: $
		1335	CODE:
		1336	eio_set_idle_timeout (seconds);
		1337
		1338	void
617	max_outstanding (int maxreqs)	1339	max_outstanding (unsigned int maxreqs)
618	PROTOTYPE: $	1340	PROTOTYPE: $
619	CODE:	1341	CODE:
620	max_outstanding = maxreqs;	1342	max_outstanding = maxreqs;
621		1343
622	void	1344	void
623	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1345	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
624	PROTOTYPE: $$$;$
625	PPCODE:	1346	PPCODE:
626	{	1347	{
627	dREQ;	1348	dREQ;
628		1349
		1350	req->type = EIO_WD_OPEN;
		1351	req_set_path1 (req, pathname);
		1352
		1353	REQ_SEND;
		1354	}
		1355
		1356	void
		1357	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1358	PPCODE:
		1359	{
		1360	dREQ;
		1361
629	req->type = EIO_OPEN;	1362	req->type = EIO_OPEN;
630	req->sv1 = newSVsv (pathname);	1363	req_set_path1 (req, pathname);
631	req->ptr1 = SvPVbyte_nolen (req->sv1);
632	req->int1 = flags;	1364	req->int1 = flags;
633	req->int2 = mode;	1365	req->int2 = mode;
634		1366
635	REQ_SEND;	1367	REQ_SEND;
636	}	1368	}
637		1369
638	void	1370	void
639	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1371	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
640	PROTOTYPE: $;$
641	ALIAS:	1372	ALIAS:
642	aio_fsync = EIO_FSYNC	1373	aio_fsync = EIO_FSYNC
643	aio_fdatasync = EIO_FDATASYNC	1374	aio_fdatasync = EIO_FDATASYNC
		1375	aio_syncfs = EIO_SYNCFS
644	PPCODE:	1376	PPCODE:
645	{	1377	{
646	int fd = s_fileno_croak (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
647	dREQ;	1379	dREQ;
648		1380
649	req->type = ix;	1381	req->type = ix;
650	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
651	req->int1 = fd;	1383	req->int1 = fd;
652		1384
653	REQ_SEND (req);	1385	REQ_SEND;
654	}	1386	}
655		1387
656	void	1388	void
657	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1389	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
658	PROTOTYPE: $$$$;$
659	PPCODE:	1390	PPCODE:
660	{	1391	{
661	int fd = s_fileno_croak (fh, 0);	1392	int fd = s_fileno_croak (fh, 0);
662	dREQ;	1393	dREQ;
663		1394
664	req->type = EIO_SYNC_FILE_RANGE;	1395	req->type = EIO_SYNC_FILE_RANGE;
665	req->sv1 = newSVsv (fh);	1396	req->sv1 = newSVsv (fh);
666	req->int1 = fd;	1397	req->int1 = fd;
667	req->offs = offset;	1398	req->offs = offset;
668	req->size = nbytes;	1399	req->size = nbytes;
669	req->int2 = flags;	1400	req->int2 = flags;
670		1401
671	REQ_SEND (req);	1402	REQ_SEND;
672	}	1403	}
673		1404
674	void	1405	void
675	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1406	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
676	PROTOTYPE: $;$
677	PPCODE:	1407	PPCODE:
678	{	1408	{
679	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
680	int fd = s_fileno_croak (fh, 0);	1409	int fd = s_fileno_croak (fh, 0);
681	dREQ;	1410	dREQ;
682		1411
683	if (close_pipe < 0)	1412	req->type = EIO_FALLOCATE;
		1413	req->sv1 = newSVsv (fh);
		1414	req->int1 = fd;
		1415	req->int2 = mode;
		1416	req->offs = offset;
		1417	req->size = len;
		1418
		1419	REQ_SEND;
		1420	}
		1421
		1422	void
		1423	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1424	PPCODE:
		1425	{
		1426	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1427	int fd = s_fileno_croak (fh, 0);
		1428	dREQ;
		1429
		1430	if (expect_false (close_fd < 0))
684	{	1431	{
685	int pipefd [2];	1432	int pipefd [2];
686		1433
		1434	if (
		1435	#ifdef _WIN32
		1436	_pipe (pipefd, 1, _O_BINARY) < 0
		1437	#else
687	if (pipe (pipefd) < 0	1438	pipe (pipefd) < 0
688	|| close (pipefd [1]) < 0
689	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1439	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1440	#endif
		1441	|| close (pipefd [1]) < 0
		1442	)
690	abort (); /*D*/	1443	abort (); /*D*/
691		1444
692	close_pipe = pipefd [0];	1445	close_fd = pipefd [0];
693	}	1446	}
694		1447
695	req->type = EIO_DUP2;	1448	req->type = EIO_DUP2;
696	req->int1 = close_pipe;	1449	req->int1 = close_fd;
697	req->sv2 = newSVsv (fh);	1450	req->sv2 = newSVsv (fh);
698	req->int2 = fd;	1451	req->int2 = fd;
699		1452
700	REQ_SEND (req);	1453	REQ_SEND;
701	}	1454	}
702		1455
703	void	1456	void
		1457	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1458	PPCODE:
		1459	{
		1460	int fd = s_fileno_croak (fh, 0);
		1461	dREQ;
		1462
		1463	req->type = EIO_SEEK;
		1464	req->sv1 = newSVsv (fh);
		1465	req->int1 = fd;
		1466	req->offs = SvVAL64 (offset);
		1467	req->int2 = whence;
		1468
		1469	REQ_SEND;
		1470	}
		1471
		1472	void
704	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1473	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
705	ALIAS:	1474	ALIAS:
706	aio_read = EIO_READ	1475	aio_read = EIO_READ
707	aio_write = EIO_WRITE	1476	aio_write = EIO_WRITE
708	PROTOTYPE: $$$$$;$
709	PPCODE:	1477	PPCODE:
710	{	1478	{
711	STRLEN svlen;	1479	STRLEN svlen;
712	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1480	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
713	char *svptr = SvPVbyte (data, svlen);	1481	char *svptr = SvPVbyte (data, svlen);
…		…
726	len = svlen - dataoffset;	1494	len = svlen - dataoffset;
727	}	1495	}
728	else	1496	else
729	{	1497	{
730	/* read: check type and grow scalar as necessary */	1498	/* read: check type and grow scalar as necessary */
731	SvUPGRADE (data, SVt_PV);	1499	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
732	svptr = SvGROW (data, len + dataoffset + 1);	1500	svptr = sv_grow (data, len + dataoffset + 1);
		1501	else if (SvCUR (data) < len + dataoffset)
		1502	croak ("length + dataoffset outside of scalar, and cannot grow");
733	}	1503	}
734		1504
735	{	1505	{
736	dREQ;	1506	dREQ;
737		1507
…		…
753	REQ_SEND;	1523	REQ_SEND;
754	}	1524	}
755	}	1525	}
756		1526
757	void	1527	void
758	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1528	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
759	PROTOTYPE: $$;$	1529	ALIAS:
		1530	aio_ioctl = EIO_IOCTL
		1531	aio_fcntl = EIO_FCNTL
760	PPCODE:	1532	PPCODE:
761	{	1533	{
762	SV *data;	1534	int fd = s_fileno_croak (fh, 0);
		1535	char *svptr;
		1536
		1537	if (SvPOK (arg) || !SvNIOK (arg))
		1538	{
		1539	STRLEN svlen;
		1540	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1541	#ifdef IOCPARM_LEN
		1542	STRLEN need = IOCPARM_LEN (request);
		1543	#else
		1544	STRLEN need = 256;
		1545	#endif
		1546
		1547	if (svlen < need)
		1548	svptr = SvGROW (arg, need);
		1549	}
		1550	else
		1551	svptr = (char *)SvIV (arg);
		1552
		1553	{
		1554	dREQ;
		1555
		1556	req->type = ix;
		1557	req->sv1 = newSVsv (fh);
		1558	req->int1 = fd;
		1559	req->int2 = (long)request;
		1560	req->sv2 = SvREFCNT_inc (arg);
		1561	req->ptr2 = svptr;
		1562
		1563	REQ_SEND;
		1564	}
		1565	}
		1566
		1567	void
		1568	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1569	ALIAS:
		1570	aio_readlink = EIO_READLINK
		1571	aio_realpath = EIO_REALPATH
		1572	PPCODE:
		1573	{
763	dREQ;	1574	dREQ;
764		1575
765	req->type = EIO_READLINK;	1576	req->type = ix;
766	req->sv1 = newSVsv (path);	1577	req_set_path1 (req, pathname);
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768		1578
769	REQ_SEND;	1579	REQ_SEND;
770	}	1580	}
771		1581
772	void	1582	void
773	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1583	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
774	PROTOTYPE: $$$$;$
775	PPCODE:	1584	PPCODE:
776	{	1585	{
777	int ifd = s_fileno_croak (in_fh , 0);	1586	int ifd = s_fileno_croak (in_fh , 0);
778	int ofd = s_fileno_croak (out_fh, 1);	1587	int ofd = s_fileno_croak (out_fh, 1);
779	dREQ;	1588	dREQ;
780		1589
781	req->type = EIO_SENDFILE;	1590	req->type = EIO_SENDFILE;
782	req->sv1 = newSVsv (out_fh);	1591	req->sv1 = newSVsv (out_fh);
783	req->int1 = ofd;	1592	req->int1 = ofd;
…		…
788		1597
789	REQ_SEND;	1598	REQ_SEND;
790	}	1599	}
791		1600
792	void	1601	void
793	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1602	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1603	PPCODE:
796	{	1604	{
797	int fd = s_fileno_croak (fh, 0);	1605	int fd = s_fileno_croak (fh, 0);
798	dREQ;	1606	dREQ;
799		1607
800	req->type = EIO_READAHEAD;	1608	req->type = EIO_READAHEAD;
801	req->sv1 = newSVsv (fh);	1609	req->sv1 = newSVsv (fh);
802	req->int1 = fd;	1610	req->int1 = fd;
…		…
805		1613
806	REQ_SEND;	1614	REQ_SEND;
807	}	1615	}
808		1616
809	void	1617	void
810	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1618	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
811	ALIAS:	1619	ALIAS:
812	aio_stat = EIO_STAT	1620	aio_stat = EIO_STAT
813	aio_lstat = EIO_LSTAT	1621	aio_lstat = EIO_LSTAT
		1622	aio_statvfs = EIO_STATVFS
814	PPCODE:	1623	PPCODE:
815	{	1624	{
816	dREQ;	1625	dREQ;
817		1626
818	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, 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_FSTAT;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1628
831	REQ_SEND;	1629	REQ_SEND;
832	}	1630	}
833		1631
834	void	1632	void
		1633	st_xtime ()
		1634	ALIAS:
		1635	st_atime = 1
		1636	st_mtime = 2
		1637	st_ctime = 4
		1638	st_xtime = 7
		1639	PPCODE:
		1640	EXTEND (SP, 3);
		1641	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1642	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1643	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1644
		1645	void
		1646	st_xtimensec ()
		1647	ALIAS:
		1648	st_atimensec = 1
		1649	st_mtimensec = 2
		1650	st_ctimensec = 4
		1651	st_xtimensec = 7
		1652	PPCODE:
		1653	EXTEND (SP, 3);
		1654	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1655	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1656	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1657
		1658	UV
		1659	major (UV dev)
		1660	ALIAS:
		1661	minor = 1
		1662	CODE:
		1663	RETVAL = ix ? minor (dev) : major (dev);
		1664	OUTPUT:
		1665	RETVAL
		1666
		1667	UV
		1668	makedev (UV maj, UV min)
		1669	CODE:
		1670	RETVAL = makedev (maj, min);
		1671	OUTPUT:
		1672	RETVAL
		1673
		1674	void
835	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1675	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
836	PPCODE:	1676	PPCODE:
837	{	1677	{
838	dREQ;	1678	dREQ;
839		1679
840	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1680	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
841	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1681	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
842	req->sv1 = newSVsv (fh_or_path);	1682	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
843
844	if (SvPOK (req->sv1))
845	{
846	req->type = EIO_UTIME;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);
848	}
849	else
850	{
851	req->type = EIO_FUTIME;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1683
855	REQ_SEND;	1684	REQ_SEND;
856	}	1685	}
857		1686
858	void	1687	void
859	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1688	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
860	PPCODE:	1689	PPCODE:
861	{	1690	{
862	dREQ;	1691	dREQ;
863		1692
864	req->sv1 = newSVsv (fh_or_path);
865	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1693	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
866		1694	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_TRUNCATE;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FTRUNCATE;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1695
878	REQ_SEND;	1696	REQ_SEND;
879	}	1697	}
880		1698
881	void	1699	void
882	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1700	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
883	ALIAS:
884	aio_chmod = EIO_CHMOD
885	aio_mkdir = EIO_MKDIR
886	PPCODE:	1701	PPCODE:
887	{	1702	{
888	dREQ;	1703	dREQ;
889		1704
890	req->int2 = mode;	1705	req->int2 = mode;
891	req->sv1 = newSVsv (fh_or_path);	1706	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
892
893	if (SvPOK (req->sv1))
894	{
895	req->type = ix;
896	req->ptr1 = SvPVbyte_nolen (req->sv1);
897	}
898	else
899	{
900	req->type = EIO_FCHMOD;
901	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
902	}
903		1707
904	REQ_SEND;	1708	REQ_SEND;
905	}	1709	}
906		1710
907	void	1711	void
908	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1712	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
909	PPCODE:	1713	PPCODE:
910	{	1714	{
911	dREQ;	1715	dREQ;
912		1716
913	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1717	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
914	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1718	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
915	req->sv1 = newSVsv (fh_or_path);	1719	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
916
917	if (SvPOK (req->sv1))
918	{
919	req->type = EIO_CHOWN;
920	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	}
922	else
923	{
924	req->type = EIO_FCHOWN;
925	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
926	}
927		1720
928	REQ_SEND;	1721	REQ_SEND;
929	}	1722	}
930		1723
931	void	1724	void
932	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1725	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
933	PPCODE:	1726	PPCODE:
934	{	1727	{
935	dREQ;	1728	dREQ;
936		1729
937	req->type = EIO_READDIR;	1730	req->type = EIO_READDIR;
938	req->sv1 = newSVsv (pathname);
939	req->ptr1 = SvPVbyte_nolen (req->sv1);
940	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1731	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
941		1732
942	if (flags & EIO_READDIR_DENTS)	1733	if (flags & EIO_READDIR_DENTS)
943	req->int1 |= EIO_READDIR_CUSTOM2;	1734	req->int1 |= EIO_READDIR_CUSTOM2;
944		1735
		1736	req_set_path1 (req, pathname);
		1737
945	REQ_SEND;	1738	REQ_SEND;
946	}	1739	}
947		1740
948	void	1741	void
		1742	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	dREQ;
		1746
		1747	req->type = EIO_MKDIR;
		1748	req->int2 = mode;
		1749	req_set_path1 (req, pathname);
		1750
		1751	REQ_SEND;
		1752	}
		1753
		1754	void
949	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1755	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
950	ALIAS:	1756	ALIAS:
951	aio_unlink = EIO_UNLINK	1757	aio_unlink = EIO_UNLINK
952	aio_rmdir = EIO_RMDIR	1758	aio_rmdir = EIO_RMDIR
953	aio_readdir = EIO_READDIR	1759	aio_readdir = EIO_READDIR
954	PPCODE:	1760	PPCODE:
955	{	1761	{
956	dREQ;	1762	dREQ;
957		1763
958	req->type = ix;	1764	req->type = ix;
959	req->sv1 = newSVsv (pathname);	1765	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1766
962	REQ_SEND;	1767	REQ_SEND;
963	}	1768	}
964		1769
965	void	1770	void
966	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1771	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
967	ALIAS:	1772	ALIAS:
968	aio_link = EIO_LINK	1773	aio_link = EIO_LINK
969	aio_symlink = EIO_SYMLINK	1774	aio_symlink = EIO_SYMLINK
970	aio_rename = EIO_RENAME	1775	aio_rename = EIO_RENAME
971	PPCODE:	1776	PPCODE:
972	{	1777	{
		1778	eio_wd wd2 = 0;
973	dREQ;	1779	dREQ;
974		1780
975	req->type = ix;	1781	req->type = ix;
976	req->sv1 = newSVsv (oldpath);	1782	req_set_path1 (req, oldpath);
977	req->ptr1 = SvPVbyte_nolen (req->sv1);	1783	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
978	req->sv2 = newSVsv (newpath);	1784	req->int3 = (long)wd2;
979	req->ptr2 = SvPVbyte_nolen (req->sv2);
980		1785
981	REQ_SEND;	1786	REQ_SEND;
982	}	1787	}
983		1788
984	void	1789	void
		1790	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1791	PPCODE:
		1792	{
		1793	eio_wd wd2 = 0;
		1794	dREQ;
		1795
		1796	req->type = EIO_RENAME;
		1797	req_set_path1 (req, oldpath);
		1798	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1799	req->int2 = flags;
		1800	req->int3 = (long)wd2;
		1801
		1802	REQ_SEND;
		1803	}
		1804
		1805	void
985	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1806	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
986	PPCODE:	1807	PPCODE:
987	{	1808	{
988	dREQ;	1809	dREQ;
989		1810
990	req->type = EIO_MKNOD;	1811	req->type = EIO_MKNOD;
991	req->sv1 = newSVsv (pathname);
992	req->ptr1 = SvPVbyte_nolen (req->sv1);
993	req->int2 = (mode_t)mode;	1812	req->int2 = (mode_t)mode;
994	req->offs = dev;	1813	req->offs = dev;
		1814	req_set_path1 (req, pathname);
995		1815
996	REQ_SEND;	1816	REQ_SEND;
997	}	1817	}
998		1818
999	void	1819	void
		1820	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1821	ALIAS:
		1822	aio_mtouch = EIO_MTOUCH
		1823	aio_msync = EIO_MSYNC
		1824	PPCODE:
		1825	{
		1826	STRLEN svlen;
		1827	char *svptr = SvPVbyte (data, svlen);
		1828	UV len = SvUV (length);
		1829
		1830	if (flags < 0)
		1831	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1832
		1833	if (offset < 0)
		1834	offset += svlen;
		1835
		1836	if (offset < 0 || offset > svlen)
		1837	croak ("offset outside of scalar");
		1838
		1839	if (!SvOK (length) || len + offset > svlen)
		1840	len = svlen - offset;
		1841
		1842	{
		1843	dREQ;
		1844
		1845	req->type = ix;
		1846	req->sv2 = SvREFCNT_inc (data);
		1847	req->ptr2 = (char *)svptr + offset;
		1848	req->size = len;
		1849	req->int1 = flags;
		1850
		1851	REQ_SEND;
		1852	}
		1853	}
		1854
		1855	void
		1856	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1857	PPCODE:
		1858	{
		1859	STRLEN svlen;
		1860	char *svptr = SvPVbyte (data, svlen);
		1861	UV len = SvUV (length);
		1862
		1863	if (offset < 0)
		1864	offset += svlen;
		1865
		1866	if (offset < 0 || offset > svlen)
		1867	croak ("offset outside of scalar");
		1868
		1869	if (!SvOK (length) || len + offset > svlen)
		1870	len = svlen - offset;
		1871
		1872	{
		1873	dREQ;
		1874
		1875	req->type = EIO_MLOCK;
		1876	req->sv2 = SvREFCNT_inc (data);
		1877	req->ptr2 = (char *)svptr + offset;
		1878	req->size = len;
		1879
		1880	REQ_SEND;
		1881	}
		1882	}
		1883
		1884	void
		1885	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1886	PPCODE:
		1887	{
		1888	dREQ;
		1889
		1890	req->type = EIO_MLOCKALL;
		1891	req->int1 = flags;
		1892
		1893	REQ_SEND;
		1894	}
		1895
		1896	void
		1897	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1898	PPCODE:
		1899	{
		1900	int fd = s_fileno_croak (fh, 0);
		1901	dREQ;
		1902
		1903	req->type = EIO_CUSTOM;
		1904	req->sv1 = newSVsv (fh);
		1905	req->int1 = fd;
		1906
		1907	req->feed = fiemap;
		1908	#if HAVE_FIEMAP
		1909	/* keep our fingers crossed that the next two types are 64 bit */
		1910	req->offs = start;
		1911	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1912	req->int2 = flags;
		1913	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1914	#endif
		1915
		1916	REQ_SEND;
		1917	}
		1918
		1919	void
		1920	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1921	PPCODE:
		1922	{
		1923	char *svptr = 0;
		1924
		1925	sv_clear_foreign (data);
		1926
		1927	if (length) /* known length, directly read into scalar */
		1928	{
		1929	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1930	svptr = sv_grow (data, length + 1);
		1931	else if (SvCUR (data) < length)
		1932	croak ("length outside of scalar, and cannot grow");
		1933	else
		1934	svptr = SvPVbyte_nolen (data);
		1935	}
		1936
		1937	{
		1938	dREQ;
		1939
		1940	req->type = EIO_SLURP;
		1941	req_set_path1 (req, pathname);
		1942	req->offs = offset;
		1943	req->size = length;
		1944	req->sv2 = SvREFCNT_inc (data);
		1945	req->ptr2 = svptr;
		1946
		1947	if (!SvREADONLY (data))
		1948	{
		1949	SvREADONLY_on (data);
		1950	req->flags |= FLAG_SV2_RO_OFF;
		1951	}
		1952
		1953	REQ_SEND;
		1954	}
		1955	}
		1956
		1957	void
1000	aio_busy (double delay, SV *callback=&PL_sv_undef)	1958	aio_busy (double delay, SV *callback = &PL_sv_undef)
1001	PPCODE:	1959	PPCODE:
1002	{	1960	{
1003	dREQ;	1961	dREQ;
1004		1962
1005	req->type = EIO_BUSY;	1963	req->type = EIO_BUSY;
…		…
1007		1965
1008	REQ_SEND;	1966	REQ_SEND;
1009	}	1967	}
1010		1968
1011	void	1969	void
1012	aio_group (SV *callback=&PL_sv_undef)	1970	aio_group (SV *callback = &PL_sv_undef)
1013	PROTOTYPE: ;$
1014	PPCODE:	1971	PPCODE:
1015	{	1972	{
1016	dREQ;	1973	dREQ;
1017		1974
1018	req->type = EIO_GROUP;	1975	req->type = EIO_GROUP;
1019		1976
		1977	PUTBACK;
1020	req_submit (req);	1978	req_submit (req);
		1979	SPAGAIN;
		1980
1021	XPUSHs (req_sv (req, aio_grp_stash));	1981	XPUSHs (req_sv (req, aio_grp_stash));
1022	}	1982	}
1023		1983
1024	void	1984	void
1025	aio_nop (SV *callback=&PL_sv_undef)	1985	aio_nop (SV *callback = &PL_sv_undef)
1026	ALIAS:	1986	ALIAS:
1027	aio_nop = EIO_NOP	1987	aio_nop = EIO_NOP
1028	aio_sync = EIO_SYNC	1988	aio_sync = EIO_SYNC
1029	PPCODE:	1989	PPCODE:
1030	{	1990	{
…		…
1034		1994
1035	REQ_SEND;	1995	REQ_SEND;
1036	}	1996	}
1037		1997
1038	int	1998	int
1039	aioreq_pri (int pri = 0)	1999	aioreq_pri (int pri = NO_INIT)
1040	PROTOTYPE: ;$
1041	CODE:	2000	CODE:
1042	RETVAL = next_pri;	2001	RETVAL = next_pri;
1043	if (items > 0)	2002	if (items > 0)
1044	{	2003	{
1045	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2004	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1057	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2016	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058	next_pri = nice;	2017	next_pri = nice;
1059		2018
1060	void	2019	void
1061	flush ()	2020	flush ()
1062	PROTOTYPE:
1063	CODE:	2021	CODE:
1064	while (eio_nreqs ())	2022	while (eio_nreqs ())
1065	{	2023	{
1066	poll_wait ();	2024	poll_wait ();
1067	poll_cb ();	2025	poll_cb ();
1068	}	2026	}
1069		2027
1070	int	2028	int
1071	poll()	2029	poll ()
1072	PROTOTYPE:
1073	CODE:	2030	CODE:
1074	poll_wait ();	2031	poll_wait ();
1075	RETVAL = poll_cb ();	2032	RETVAL = poll_cb ();
1076	OUTPUT:	2033	OUTPUT:
1077	RETVAL	2034	RETVAL
1078		2035
1079	int	2036	int
1080	poll_fileno()	2037	poll_fileno ()
1081	PROTOTYPE:
1082	CODE:	2038	CODE:
1083	RETVAL = s_epipe_fd (&respipe);	2039	RETVAL = s_epipe_fd (&respipe);
1084	OUTPUT:	2040	OUTPUT:
1085	RETVAL	2041	RETVAL
1086		2042
1087	int	2043	int
1088	poll_cb(...)	2044	poll_cb (...)
1089	PROTOTYPE:	2045	PROTOTYPE:
1090	CODE:	2046	CODE:
1091	RETVAL = poll_cb ();	2047	RETVAL = poll_cb ();
1092	OUTPUT:	2048	OUTPUT:
1093	RETVAL	2049	RETVAL
1094		2050
1095	void	2051	void
1096	poll_wait()	2052	poll_wait ()
1097	PROTOTYPE:
1098	CODE:	2053	CODE:
1099	poll_wait ();	2054	poll_wait ();
1100		2055
1101	int	2056	int
1102	nreqs()	2057	nreqs ()
1103	PROTOTYPE:
1104	CODE:	2058	CODE:
1105	RETVAL = eio_nreqs ();	2059	RETVAL = eio_nreqs ();
1106	OUTPUT:	2060	OUTPUT:
1107	RETVAL	2061	RETVAL
1108		2062
1109	int	2063	int
1110	nready()	2064	nready ()
1111	PROTOTYPE:
1112	CODE:	2065	CODE:
1113	RETVAL = eio_nready ();	2066	RETVAL = eio_nready ();
1114	OUTPUT:	2067	OUTPUT:
1115	RETVAL	2068	RETVAL
1116		2069
1117	int	2070	int
1118	npending()	2071	npending ()
1119	PROTOTYPE:
1120	CODE:	2072	CODE:
1121	RETVAL = eio_npending ();	2073	RETVAL = eio_npending ();
1122	OUTPUT:	2074	OUTPUT:
1123	RETVAL	2075	RETVAL
1124		2076
1125	int	2077	int
1126	nthreads()	2078	nthreads ()
1127	PROTOTYPE:
1128	CODE:	2079	CODE:
1129	RETVAL = eio_nthreads ();	2080	RETVAL = eio_nthreads ();
1130	OUTPUT:	2081	OUTPUT:
1131	RETVAL	2082	RETVAL
1132		2083
1133	int	2084	int
1134	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2085	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135	PROTOTYPE: $$$$
1136	CODE:	2086	CODE:
1137	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138	RETVAL = posix_fadvise (fh, offset, length, advice);	2087	RETVAL = posix_fadvise (fh, offset, length, advice);
1139	#else
1140	RETVAL = errno = ENOSYS;
1141	#endif
1142	OUTPUT:	2088	OUTPUT:
1143	RETVAL	2089	RETVAL
1144		2090
1145	ssize_t	2091	IV
1146	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2092	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147	PROTOTYPE: $$$$
1148	CODE:	2093	CODE:
1149	eio_sendfile_sync (ofh, ifh, offset, count);	2094	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2095	OUTPUT:
		2096	RETVAL
		2097
		2098	void
		2099	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2100	PPCODE:
		2101	sv_clear_foreign (scalar);
		2102	{
		2103	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2104	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2105	if (addr == (void *)-1)
		2106	XSRETURN_NO;
		2107
		2108	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2109
		2110	if (!(prot & PROT_WRITE))
		2111	SvREADONLY_on (scalar);
		2112
		2113	XSRETURN_YES;
		2114	}
		2115
		2116	void
		2117	munmap (SV *scalar)
		2118	CODE:
		2119	sv_clear_foreign (scalar);
		2120
		2121	SV *
		2122	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2123	CODE:
		2124	{
		2125	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2126	void *new;
		2127
		2128	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2129	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2130
		2131	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2132
		2133	RETVAL = &PL_sv_no;
		2134
		2135	if (new != (void *)-1)
		2136	{
		2137	RETVAL = new == (void *)mg->mg_ptr
		2138	? newSVpvn ("0 but true", 10)
		2139	: &PL_sv_yes;
		2140
		2141	mg->mg_ptr = (char *)new;
		2142	mg->mg_obj = (SV *)new_length;
		2143
		2144	SvPVX (scalar) = mg->mg_ptr;
		2145	SvCUR_set (scalar, new_length);
		2146	}
		2147	}
		2148	OUTPUT:
		2149	RETVAL
		2150
		2151	int
		2152	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2153	ALIAS:
		2154	mprotect = 1
		2155	CODE:
		2156	{
		2157	STRLEN svlen;
		2158	void *addr = SvPVbyte (scalar, svlen);
		2159	STRLEN len = SvUV (length);
		2160
		2161	if (offset < 0)
		2162	offset += svlen;
		2163
		2164	if (offset < 0 || offset > svlen)
		2165	croak ("offset outside of scalar");
		2166
		2167	if (!SvOK (length) || len + offset > svlen)
		2168	len = svlen - offset;
		2169
		2170	addr = (void *)(((intptr_t)addr) + offset);
		2171	eio_page_align (&addr, &len);
		2172
		2173	switch (ix)
		2174	{
		2175	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2176	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2177	}
		2178	}
		2179	OUTPUT:
		2180	RETVAL
		2181
		2182	int
		2183	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2184	CODE:
		2185	{
		2186	STRLEN svlen;
		2187	void *addr = SvPVbyte (scalar, svlen);
		2188	size_t len = SvUV (length);
		2189
		2190	if (offset < 0)
		2191	offset += svlen;
		2192
		2193	if (offset < 0 || offset > svlen)
		2194	croak ("offset outside of scalar");
		2195
		2196	if (!SvOK (length) || len + offset > svlen)
		2197	len = svlen - offset;
		2198
		2199	addr = (void *)(((intptr_t)addr) + offset);
		2200	eio_page_align (&addr, &len);
		2201	#if _POSIX_MEMLOCK_RANGE
		2202	RETVAL = munlock (addr, len);
		2203	#else
		2204	RETVAL = EIO_ENOSYS ();
		2205	#endif
		2206	}
		2207	OUTPUT:
		2208	RETVAL
		2209
		2210	int
		2211	munlockall ()
		2212	CODE:
		2213	#if _POSIX_MEMLOCK
		2214	munlockall ();
		2215	#else
		2216	RETVAL = EIO_ENOSYS ();
		2217	#endif
		2218	OUTPUT:
		2219	RETVAL
		2220
		2221	int
		2222	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2223	CODE:
		2224	{
		2225	#if HAVE_LINUX_SPLICE
		2226	loff_t off_in_, off_out_;
		2227	RETVAL = splice (
		2228	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2229	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2230	length, flags
		2231	);
		2232	#else
		2233	RETVAL = EIO_ENOSYS ();
		2234	#endif
		2235	}
		2236	OUTPUT:
		2237	RETVAL
		2238
		2239	int
		2240	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2241	CODE:
		2242	#if HAVE_LINUX_SPLICE
		2243	RETVAL = tee (rfh, wfh, length, flags);
		2244	#else
		2245	RETVAL = EIO_ENOSYS ();
		2246	#endif
		2247	OUTPUT:
		2248	RETVAL
		2249
		2250	int
		2251	pipesize (aio_rfd rfh, int new_size = -1)
		2252	PROTOTYPE: $;$
		2253	CODE:
		2254	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2255	if (new_size >= 0)
		2256	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2257	else
		2258	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2259	#else
		2260	errno = ENOSYS;
		2261	RETVAL = -1;
		2262	#endif
		2263	OUTPUT:
		2264	RETVAL
		2265
		2266	void
		2267	pipe2 (int flags = 0)
		2268	PROTOTYPE: ;$
		2269	PPCODE:
		2270	{
		2271	int fd[2];
		2272	int res;
		2273
		2274	if (flags)
		2275	#if HAVE_PIPE2
		2276	res = pipe2 (fd, flags);
		2277	#else
		2278	res = (errno = ENOSYS, -1);
		2279	#endif
		2280	else
		2281	res = pipe (fd);
		2282
		2283	if (!res)
		2284	{
		2285	EXTEND (SP, 2);
		2286	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2287	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2288	}
		2289	}
		2290
		2291	void
		2292	eventfd (unsigned int initval = 0, int flags = 0)
		2293	PPCODE:
		2294	{
		2295	int fd;
		2296	#if HAVE_EVENTFD
		2297	fd = eventfd (initval, flags);
		2298	#else
		2299	fd = (errno = ENOSYS, -1);
		2300	#endif
		2301
		2302	XPUSHs (newmortalFH (fd, O_RDWR));
		2303	}
		2304
		2305	void
		2306	timerfd_create (int clockid, int flags = 0)
		2307	PPCODE:
		2308	{
		2309	int fd;
		2310	#if HAVE_TIMERFD
		2311	fd = timerfd_create (clockid, flags);
		2312	#else
		2313	fd = (errno = ENOSYS, -1);
		2314	#endif
		2315
		2316	XPUSHs (newmortalFH (fd, O_RDWR));
		2317	}
		2318
		2319	void
		2320	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2321	PPCODE:
		2322	{
		2323	int fd = s_fileno_croak (fh, 0);
		2324	#if HAVE_TIMERFD
		2325	int res;
		2326	struct itimerspec its, ots;
		2327
		2328	ts_set (&its.it_interval, interval);
		2329	ts_set (&its.it_value , value);
		2330	res = timerfd_settime (fd, flags, &its, &ots);
		2331
		2332	if (!res)
		2333	{
		2334	EXTEND (SP, 2);
		2335	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2336	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2337	}
		2338	#else
		2339	errno = ENOSYS;
		2340	#endif
		2341	}
		2342
		2343	void
		2344	timerfd_gettime (SV *fh)
		2345	PPCODE:
		2346	{
		2347	int fd = s_fileno_croak (fh, 0);
		2348	#if HAVE_TIMERFD
		2349	int res;
		2350	struct itimerspec ots;
		2351	res = timerfd_gettime (fd, &ots);
		2352
		2353	if (!res)
		2354	{
		2355	EXTEND (SP, 2);
		2356	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2357	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2358	}
		2359	#else
		2360	errno = ENOSYS;
		2361	#endif
		2362	}
		2363
		2364	UV
		2365	get_fdlimit ()
		2366	CODE:
		2367	#if HAVE_RLIMITS
		2368	struct rlimit rl;
		2369	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2370	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2371	#endif
		2372	XSRETURN_UNDEF;
		2373	OUTPUT:
		2374	RETVAL
		2375
		2376	void
		2377	min_fdlimit (UV limit = 0x7fffffffU)
		2378	CODE:
		2379	{
		2380	#if HAVE_RLIMITS
		2381	struct rlimit rl;
		2382	rlim_t orig_rlim_max;
		2383	UV bit;
		2384
		2385	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2386	goto fail;
		2387
		2388	if (rl.rlim_cur == RLIM_INFINITY)
		2389	XSRETURN_YES;
		2390
		2391	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2392
		2393	if (rl.rlim_cur < limit)
		2394	{
		2395	rl.rlim_cur = limit;
		2396
		2397	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2398	rl.rlim_max = rl.rlim_cur;
		2399	}
		2400
		2401	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2402	XSRETURN_YES;
		2403
		2404	if (errno == EPERM)
		2405	{
		2406	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2407	/* our limit overflows a system-wide limit */
		2408	/* try an adaptive algorithm, but do not lower the hardlimit */
		2409	rl.rlim_max = 0;
		2410	for (bit = 0x40000000U; bit; bit >>= 1)
		2411	{
		2412	rl.rlim_max |= bit;
		2413	rl.rlim_cur = rl.rlim_max;
		2414
		2415	/* nevr decrease the hard limit */
		2416	if (rl.rlim_max < orig_rlim_max)
		2417	break;
		2418
		2419	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2420	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2421	}
		2422
		2423	/* now, raise the soft limit to the max permitted */
		2424	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2425	{
		2426	rl.rlim_cur = rl.rlim_max;
		2427	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2428	errno = EPERM;
		2429	}
		2430	}
		2431	#endif
		2432	fail:
		2433	XSRETURN_UNDEF;
		2434	}
1150		2435
1151	void _on_next_submit (SV *cb)	2436	void _on_next_submit (SV *cb)
1152	CODE:	2437	CODE:
1153	SvREFCNT_dec (on_next_submit);	2438	SvREFCNT_dec (on_next_submit);
1154	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2439	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1155		2440
1156	PROTOTYPES: DISABLE	2441	PROTOTYPES: DISABLE
1157		2442
		2443	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2444
		2445	BOOT:
		2446	{
		2447	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2448	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2449	}
		2450
		2451	void
		2452	DESTROY (SV *self)
		2453	CODE:
		2454	{
		2455	aio_wd wd = SvAIO_WD (self);
		2456	#if HAVE_AT
		2457	{
		2458	SV *callback = &PL_sv_undef;
		2459	dREQ; /* clobbers next_pri :/ */
		2460	next_pri = req->pri; /* restore next_pri */
		2461	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2462	req->type = EIO_WD_CLOSE;
		2463	req->wd = wd;
		2464	REQ_SEND;
		2465	}
		2466	#else
		2467	eio_wd_close_sync (wd);
		2468	#endif
		2469	}
		2470
1158	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2471	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1159		2472
1160	void	2473	void
1161	cancel (aio_req_ornot req)	2474	cancel (aio_req_ornot req)
1162	CODE:	2475	CODE:
1163	eio_cancel (req);	2476	eio_cancel (req);
1164		2477
1165	void	2478	void
1166	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2479	cb (aio_req_ornot req, SV *callback = NO_INIT)
1167	PPCODE:	2480	PPCODE:
1168	{	2481	{
1169	if (GIMME_V != G_VOID)	2482	if (GIMME_V != G_VOID)
1170	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2483	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1171		2484
1172	if (items > 1)	2485	if (items > 1)
1173	{	2486	{
1174	SV *cb_cv =get_cb (callback);	2487	SV *cb_cv = get_cb (callback);
1175		2488
1176	SvREFCNT_dec (req->callback);	2489	SvREFCNT_dec (req->callback);
1177	req->callback = SvREFCNT_inc (cb_cv);	2490	req->callback = SvREFCNT_inc (cb_cv);
1178	}	2491	}
1179	}	2492	}
…		…
1236	limit (aio_req grp, int limit)	2549	limit (aio_req grp, int limit)
1237	CODE:	2550	CODE:
1238	eio_grp_limit (grp, limit);	2551	eio_grp_limit (grp, limit);
1239		2552
1240	void	2553	void
1241	feed (aio_req grp, SV *callback=&PL_sv_undef)	2554	feed (aio_req grp, SV *callback = &PL_sv_undef)
1242	CODE:	2555	CODE:
1243	{	2556	{
1244	SvREFCNT_dec (grp->sv2);	2557	SvREFCNT_dec (grp->sv2);
1245	grp->sv2 = newSVsv (callback);	2558	grp->sv2 = newSVsv (callback);
1246	grp->feed = aio_grp_feed;	2559	grp->feed = aio_grp_feed;

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