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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.121 by root, Tue May 13 18:50:27 2008 UTC vs.
Revision 1.262 by root, Sun Aug 12 05:21:35 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
8		12
9	#include <stddef.h>	13	#include <stddef.h>
10	#include <stdlib.h>	14	#include <stdlib.h>
11	#include <errno.h>	15	#include <errno.h>
12	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
13	#include <sys/stat.h>	18	#include <sys/stat.h>
14	#include <limits.h>	19	#include <limits.h>
15	#include <fcntl.h>	20	#include <fcntl.h>
16	#include <sched.h>	21	#include <sched.h>
17		22
		23	#if _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
18	/* perl namespace pollution */	41	/* perl namespace pollution */
19	#undef VERSION	42	#undef VERSION
20		43
		44	/* perl stupidly overrides readdir and maybe others */
		45	/* with thread-unsafe versions, imagine that :( */
		46	#undef readdir
		47	#undef opendir
		48	#undef closedir
		49
21	#ifdef _WIN32	50	#ifdef _WIN32
22		51
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	52	// perl overrides all those nice libc functions
		53
		54	#undef malloc
		55	#undef free
28	# undef open	56	#undef open
29	# undef read	57	#undef read
30	# undef write	58	#undef write
31	# undef send	59	#undef send
32	# undef recv	60	#undef recv
33	# undef stat	61	#undef stat
		62	#undef lstat
34	# undef fstat	63	#undef fstat
35	# define lstat stat
36	# undef truncate	64	#undef truncate
37	# undef ftruncate	65	#undef ftruncate
38	# undef open	66	#undef open
		67	#undef link
39	# undef close	68	#undef close
40	# undef unlink	69	#undef unlink
		70	#undef mkdir
41	# undef rmdir	71	#undef rmdir
42	# undef rename	72	#undef rename
43	# undef lseek	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
44		83
45	# define chown(a,b,c) (errno = ENOSYS, -1)	84	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	85	#define EIO_STRUCT_STATI64
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		86
59	#else	87	#else
60		88
61	# include <sys/time.h>	89	#include <sys/time.h>
62	# include <sys/select.h>	90	#include <sys/select.h>
63	# include <unistd.h>	91	#include <unistd.h>
64	# include <utime.h>	92	#include <utime.h>
65	# include <signal.h>	93	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		94
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	95	#define EIO_STRUCT_STAT Stat_t
71		96
72	/* use NV for 32 bit perls as it allows larger offsets */	97	#endif
73	#if IVSIZE >= 8	98
74	# define SvVAL64 SvIV	99	/*****************************************************************************/
		100
		101	#if __GNUC__ >= 3
		102	# define expect(expr,value) __builtin_expect ((expr),(value))
75	#else	103	#else
76	# define SvVAL64 SvNV	104	# define expect(expr,value) (expr)
77	#endif	105	#endif
78		106
79	static HV *stash;	107	#define expect_false(expr) expect ((expr) != 0, 0)
		108	#define expect_true(expr) expect ((expr) != 0, 1)
		109
		110	/*****************************************************************************/
		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
80	typedef SV SV8; /* byte-sv, used for argument-checking */	143	typedef SV SV8; /* byte-sv, used for argument-checking */
		144	typedef int aio_rfd; /* read file desriptor */
		145	typedef int aio_wfd; /* write file descriptor */
81		146
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	147	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		148
85	#define EIO_REQ_MEMBERS \	149	#define EIO_REQ_MEMBERS \
86	SV *callback; \	150	SV *callback; \
87	SV *sv1, *sv2; \	151	SV *sv1, *sv2; \
		152	SV *sv3, *sv4; \
88	STRLEN stroffset; \	153	STRLEN stroffset; \
89	SV *self;	154	SV *self;
90		155
		156	#define EIO_NO_WRAPPERS 1
		157
91	#include "libeio/eio.h"	158	#include "libeio/eio.h"
92		159
93	static int req_invoke (eio_req *req);	160	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	161	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	162	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	163	#define EIO_DESTROY(req) req_destroy (req)
		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	/*****************************************************************************/
99		397
100	enum {	398	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	399	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
102	};	400	};
103		401
104	#include "libeio/eio.c"
105
106	typedef eio_req *aio_req;	402	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	403	typedef eio_req *aio_req_ornot;
		404	typedef eio_wd aio_wd;
108		405
109	static SV *on_next_submit;	406	static SV *on_next_submit;
110	static int next_pri = EIO_PRI_DEFAULT;	407	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	408	static int max_outstanding;
112		409
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	410	static s_epipe respipe;
114		411
115	static void req_destroy (aio_req req);	412	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	413	static void req_cancel (aio_req req);
117		414
118	static void want_poll (void)	415	static void
		416	want_poll (void)
119	{	417	{
120	/* write a dummy byte to the pipe so fh becomes ready */	418	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	419	s_epipe_signal (&respipe);
122	}	420	}
123		421
124	static void done_poll (void)	422	static void
		423	done_poll (void)
125	{	424	{
126	/* read any signals sent by the worker threads */	425	/* read any signals sent by the worker threads */
127	char buf [4];	426	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	427	}
131		428
132	/* must be called at most once */	429	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	430	static SV *
		431	req_sv (aio_req req, HV *stash)
134	{	432	{
135	if (!req->self)	433	if (!req->self)
136	{	434	{
137	req->self = (SV *)newHV ();	435	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	436	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	437	}
140		438
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	439	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	440	}
143		441
144	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)
145	{	450	{
146	MAGIC *mg;	451	MAGIC *mg;
147		452
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	453	if (!SvROK (sv)
		454	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		455	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		456	&& SvSTASH (SvRV (sv)) != aio_req_stash
		457	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	458	croak ("object of class IO::AIO::REQ expected");
150		459
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	460	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		461
153	return mg ? (aio_req)mg->mg_ptr : 0;	462	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	463	}
155		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
156	static void aio_grp_feed (aio_req grp)	502	aio_grp_feed (aio_req grp)
157	{	503	{
158	if (grp->sv2 && SvOK (grp->sv2))	504	if (grp->sv2 && SvOK (grp->sv2))
159	{	505	{
160	dSP;	506	dSP;
161		507
162	ENTER;	508	ENTER;
163	SAVETMPS;	509	SAVETMPS;
164	PUSHMARK (SP);	510	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	511	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	512	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	513	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	514	SPAGAIN;
169	FREETMPS;	515	FREETMPS;
170	LEAVE;	516	LEAVE;
171	}	517	}
172	}	518	}
173		519
		520	static void
174	static void req_submit (eio_req *req)	521	req_submit (eio_req *req)
175	{	522	{
176	eio_submit (req);	523	eio_submit (req);
177		524
178	if (on_next_submit)	525	if (expect_false (on_next_submit))
179	{	526	{
180	dSP;	527	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	528	SV *cb = sv_2mortal (on_next_submit);
182		529
183	on_next_submit = 0;	530	on_next_submit = 0;
…		…
186	PUTBACK;	533	PUTBACK;
187	call_sv (cb, G_DISCARD | G_EVAL);	534	call_sv (cb, G_DISCARD | G_EVAL);
188	}	535	}
189	}	536	}
190		537
		538	static int
191	static int req_invoke (eio_req *req)	539	req_invoke (eio_req *req)
192	{	540	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	541	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	542	SvREADONLY_off (req->sv2);
197		543
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	544	if (!EIO_CANCELLED (req) && req->callback)
199	{	545	{
		546	dSP;
		547	static SV *sv_result_cache; /* caches the result integer SV */
		548	SV *sv_result;
		549
200	ENTER;	550	ENTER;
201	SAVETMPS;	551	SAVETMPS;
202	PUSHMARK (SP);	552	PUSHMARK (SP);
203	EXTEND (SP, 1);	553	EXTEND (SP, 1);
204		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
205	switch (req->type)	568	switch (req->type)
206	{	569	{
		570	case EIO_WD_OPEN:
		571	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		572	break;
		573
207	case EIO_READDIR:	574	case EIO_READDIR:
208	{	575	{
209	SV *rv = &PL_sv_undef;	576	SV *rv = &PL_sv_undef;
210		577
211	if (req->result >= 0)	578	if (req->result >= 0)
212	{	579	{
213	int i;	580	int i;
214	char *buf = req->ptr2;	581	char *names = (char *)req->ptr2;
		582	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	583	AV *av = newAV ();
216		584
217	av_extend (av, req->result - 1);	585	av_extend (av, req->result - 1);
218		586
219	for (i = 0; i < req->result; ++i)	587	for (i = 0; i < req->result; ++i)
220	{	588	{
221	SV *sv = newSVpv (buf, 0);	589	if (req->int1 & EIO_READDIR_DENTS)
		590	{
		591	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		592
		593	if (req->int1 & EIO_READDIR_CUSTOM2)
		594	{
		595	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		596	AV *avent = newAV ();
		597
		598	av_extend (avent, 2);
		599
		600	if (!sv_type [ent->type])
		601	{
		602	sv_type [ent->type] = newSViv (ent->type);
		603	SvREADONLY_on (sv_type [ent->type]);
		604	}
		605
		606	av_store (avent, 0, namesv);
		607	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		608	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		609
		610	av_store (av, i, newRV_noinc ((SV *)avent));
		611	}
		612	else
223	av_store (av, i, sv);	613	av_store (av, i, namesv);
		614
		615	++ent;
		616	}
		617	else
		618	{
		619	SV *name = newSVpv (names, 0);
		620	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	621	names += SvCUR (name) + 1;
		622	}
225	}	623	}
226		624
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	625	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	626	}
229		627
230	PUSHs (rv);	628	PUSHs (rv);
		629
		630	if (req->int1 & EIO_READDIR_CUSTOM1)
		631	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
231	}	632	}
232	break;	633	break;
233		634
234	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:
235	{	641	{
236	/* convert fd to fh */
237	SV *fh = &PL_sv_undef;	642	SV *rv = &PL_sv_undef;
238		643
		644	#ifndef _WIN32
239	if (req->result >= 0)	645	if (req->result >= 0)
240	{	646	{
		647	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
241	GV *gv = (GV *)sv_newmortal ();	648	HV *hv = newHV ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	649	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
243	char sym [64];	650	* chooses to make it a struct.
244	int symlen;
245		651	*/
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	652	unsigned long fsid = 0;
247	gv_init (gv, stash, sym, symlen, 0);	653	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
248		654
249	symlen = snprintf (	655	rv = sv_2mortal (newRV_noinc ((SV *)hv));
250	sym,
251	sizeof (sym),
252	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result
255	);
256		656
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	657	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
258	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);
259	}	668	}
		669	#endif
260		670
261	PUSHs (fh);	671	PUSHs (rv);
262	}	672	}
		673
263	break;	674	break;
264		675
265	case EIO_GROUP:	676	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	677	req->int1 = 2; /* mark group as finished */
267		678
…		…
279	case EIO_NOP:	690	case EIO_NOP:
280	case EIO_BUSY:	691	case EIO_BUSY:
281	break;	692	break;
282		693
283	case EIO_READLINK:	694	case EIO_READLINK:
		695	case EIO_REALPATH:
284	if (req->result > 0)	696	if (req->result > 0)
285	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	697	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	break;	698	break;
287		699
288	case EIO_STAT:	700	case EIO_STAT:
289	case EIO_LSTAT:	701	case EIO_LSTAT:
290	case EIO_FSTAT:	702	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	703	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		704
292	PL_laststatval = req->result;	705	if (!(PL_laststatval = req->result))
		706	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
293	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	707	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	708
		709	PUSHs (sv_result);
295	break;	710	break;
296		711
		712	case EIO_SEEK:
		713	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		714	break;
		715
297	case EIO_READ:	716	case EIO_READ:
		717	{
298	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));
299	*SvEND (req->sv2) = 0;	719	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	720	SvPOK_only (req->sv2);
		721	SvSETMAGIC (req->sv2);
		722	PUSHs (sv_result);
		723	}
301	break;	724	break;
302		725
303	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 */
304	if (req->result > 0)	791	if (req->result > 0)
305	req->result = 0;	792	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	793	/* FALLTHROUGH */
307		794
308	default:	795	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	796	PUSHs (sv_result);
310	break;	797	break;
311	}	798	}
312		799
313	errno = req->errorno;	800	errno = req->errorno;
314		801
315	PUTBACK;	802	PUTBACK;
316	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	803	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317	SPAGAIN;	804	SPAGAIN;
318		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
319	FREETMPS;	811	FREETMPS;
320	LEAVE;	812	LEAVE;
321		813
322	PUTBACK;	814	PUTBACK;
323	}	815	}
324		816
325	return !!SvTRUE (ERRSV);	817	return !!SvTRUE (ERRSV);
326	}	818	}
327		819
		820	static void
328	static void req_destroy (aio_req req)	821	req_destroy (aio_req req)
329	{	822	{
330	if (req->self)	823	if (req->self)
331	{	824	{
332	sv_unmagic (req->self, PERL_MAGIC_ext);	825	sv_unmagic (req->self, PERL_MAGIC_ext);
333	SvREFCNT_dec (req->self);	826	SvREFCNT_dec (req->self);
334	}	827	}
335		828
336	SvREFCNT_dec (req->sv1);	829	SvREFCNT_dec (req->sv1);
337	SvREFCNT_dec (req->sv2);	830	SvREFCNT_dec (req->sv2);
		831	SvREFCNT_dec (req->sv3);
		832	SvREFCNT_dec (req->sv4);
338	SvREFCNT_dec (req->callback);	833	SvREFCNT_dec (req->callback);
339		834
340	Safefree (req);	835	free (req);
341	}	836	}
342		837
		838	static void
343	static void req_cancel_subs (aio_req grp)	839	req_cancel_subs (aio_req grp)
344	{	840	{
345	aio_req sub;
346
347	if (grp->type != EIO_GROUP)	841	if (grp->type != EIO_GROUP)
348	return;	842	return;
349		843
350	SvREFCNT_dec (grp->sv2);	844	SvREFCNT_dec (grp->sv2);
351	grp->sv2 = 0;	845	grp->sv2 = 0;
352		846
353	eio_grp_cancel (grp);	847	eio_grp_cancel (grp);
354	}	848	}
355		849
356	#ifdef USE_SOCKETS_AS_HANDLES	850	static void ecb_cold
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))	851	create_respipe (void)
358	#else	852	{
359	# define TO_SOCKET(x) (x)	853	if (s_epipe_renew (&respipe))
360	#endif	854	croak ("IO::AIO: unable to initialize result pipe");
		855	}
361		856
362	static void	857	static void
363	create_respipe (void)	858	poll_wait (void)
364	{	859	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))
374	#endif
375	croak ("unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}
399
400	static void poll_wait (void)
401	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	860	while (eio_nreqs ())
405	{	861	{
406	int size;	862	int size;
407		863
408	X_LOCK (reslock);	864	X_LOCK (EIO_POOL->reslock);
409	size = res_queue.size;	865	size = EIO_POOL->res_queue.size;
410	X_UNLOCK (reslock);	866	X_UNLOCK (EIO_POOL->reslock);
411		867
412	if (size)	868	if (size)
413	return;	869	return;
414		870
415	maybe_start_thread ();	871	etp_maybe_start_thread (EIO_POOL);
416		872
417	FD_ZERO (&rfd);	873	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	874	}
422	}	875	}
423		876
424	static int poll_cb (void)	877	static int
		878	poll_cb (void)
425	{	879	{
426	int res;	880	for (;;)
427
428	do
429	{	881	{
430	res = eio_poll ();	882	int res = eio_poll ();
431		883
432	if (res > 0)	884	if (res > 0)
433	croak (0);	885	croak (0);
		886
		887	if (!max_outstanding || max_outstanding > eio_nreqs ())
		888	return res;
		889
		890	poll_wait ();
434	}	891	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	892	}
439		893
440	static void atfork_child (void)	894	static void ecb_cold
		895	reinit (void)
441	{	896	{
442	create_respipe ();	897	create_respipe ();
		898
		899	if (eio_init (want_poll, done_poll) < 0)
		900	croak ("IO::AIO: unable to initialise eio library");
		901	}
		902
		903	/*****************************************************************************/
		904
		905	static SV *
		906	get_cb (SV *cb_sv)
		907	{
		908	SvGETMAGIC (cb_sv);
		909	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		910	}
		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;
443	}	930	}
444		931
445	#define dREQ \	932	#define dREQ \
446	aio_req req; \	933	aio_req req = dreq (callback); \
447	int req_pri = next_pri; \
448	next_pri = EIO_PRI_DEFAULT; \
449	\
450	if (SvOK (callback) && !SvROK (callback)) \
451	croak ("callback must be undef or of reference type"); \
452	\
453	Newz (0, req, 1, eio_req); \
454	if (!req) \
455	croak ("out of memory during eio_req allocation"); \
456	\
457	req->callback = newSVsv (callback); \
458	req->pri = req_pri
459		934
460	#define REQ_SEND \	935	#define REQ_SEND \
		936	PUTBACK; \
461	req_submit (req); \	937	req_submit (req); \
		938	SPAGAIN; \
462	\	939	\
463	if (GIMME_V != G_VOID) \	940	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	941	XPUSHs (req_sv (req, aio_req_stash));
465		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
466	MODULE = IO::AIO PACKAGE = IO::AIO	1026	MODULE = IO::AIO PACKAGE = IO::AIO
467		1027
468	PROTOTYPES: ENABLE	1028	PROTOTYPES: ENABLE
469		1029
470	BOOT:	1030	BOOT:
471	{	1031	{
		1032	static const struct {
		1033	const char *name;
		1034	IV iv;
		1035	} *civ, const_iv[] = {
		1036	# define const_niv(name, value) { # name, (IV) value },
		1037	# define const_iv(name) { # name, (IV) name },
		1038	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1039
		1040	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1041	/* the first block can be undef if missing */
		1042	const_iv (ENOSYS)
		1043	const_iv (EXDEV)
		1044	const_iv (EBADR)
		1045
		1046	/* for lseek */
		1047	const_iv (SEEK_DATA)
		1048	const_iv (SEEK_HOLE)
		1049
		1050	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1051	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1052	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1053	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1054	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		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)
		1253
		1254	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1255	const_eio (SYNC_FILE_RANGE_WRITE)
		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)
		1268
		1269	const_eio (READDIR_DENTS)
		1270	const_eio (READDIR_DIRS_FIRST)
		1271	const_eio (READDIR_STAT_ORDER)
		1272	const_eio (READDIR_FOUND_UNKNOWN)
		1273
		1274	const_eio (DT_UNKNOWN)
		1275	const_eio (DT_FIFO)
		1276	const_eio (DT_CHR)
		1277	const_eio (DT_DIR)
		1278	const_eio (DT_BLK)
		1279	const_eio (DT_REG)
		1280	const_eio (DT_LNK)
		1281	const_eio (DT_SOCK)
		1282	const_eio (DT_WHT)
		1283	};
		1284
472	stash = gv_stashpv ("IO::AIO", 1);	1285	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1286	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1287	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1288	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
473		1289
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1290	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1291	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
479	#ifdef _WIN32
480	X_MUTEX_CHECK (wrklock);
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486		1292
487	X_COND_CHECK (reqwait);	1293	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif
491		1294
492	create_respipe ();	1295	reinit ();
493
494	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");
496
497	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	1296	}
500		1297
501	void	1298	void
		1299	reinit ()
		1300	PROTOTYPE:
		1301
		1302	void
502	max_poll_reqs (int nreqs)	1303	max_poll_reqs (unsigned int nreqs)
503	PROTOTYPE: $	1304	PROTOTYPE: $
504	CODE:	1305	CODE:
505	eio_set_max_poll_reqs (nreqs);	1306	eio_set_max_poll_reqs (nreqs);
506		1307
507	void	1308	void
…		…
509	PROTOTYPE: $	1310	PROTOTYPE: $
510	CODE:	1311	CODE:
511	eio_set_max_poll_time (nseconds);	1312	eio_set_max_poll_time (nseconds);
512		1313
513	void	1314	void
514	min_parallel (int nthreads)	1315	min_parallel (unsigned int nthreads)
515	PROTOTYPE: $	1316	PROTOTYPE: $
516	CODE:	1317	CODE:
517	eio_set_min_parallel (nthreads);	1318	eio_set_min_parallel (nthreads);
518		1319
519	void	1320	void
520	max_parallel (int nthreads)	1321	max_parallel (unsigned int nthreads)
521	PROTOTYPE: $	1322	PROTOTYPE: $
522	CODE:	1323	CODE:
523	eio_set_max_parallel (nthreads);	1324	eio_set_max_parallel (nthreads);
524		1325
525	void	1326	void
526	max_idle (int nthreads)	1327	max_idle (unsigned int nthreads)
527	PROTOTYPE: $	1328	PROTOTYPE: $
528	CODE:	1329	CODE:
529	eio_set_max_idle (nthreads);	1330	eio_set_max_idle (nthreads);
530		1331
531	void	1332	void
		1333	idle_timeout (unsigned int seconds)
		1334	PROTOTYPE: $
		1335	CODE:
		1336	eio_set_idle_timeout (seconds);
		1337
		1338	void
532	max_outstanding (int maxreqs)	1339	max_outstanding (unsigned int maxreqs)
533	PROTOTYPE: $	1340	PROTOTYPE: $
534	CODE:	1341	CODE:
535	max_outstanding = maxreqs;	1342	max_outstanding = maxreqs;
536		1343
537	void	1344	void
538	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1345	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
539	PROTOTYPE: $$$;$
540	PPCODE:	1346	PPCODE:
541	{	1347	{
542	dREQ;	1348	dREQ;
543		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
544	req->type = EIO_OPEN;	1362	req->type = EIO_OPEN;
545	req->sv1 = newSVsv (pathname);	1363	req_set_path1 (req, pathname);
546	req->ptr1 = SvPVbyte_nolen (req->sv1);
547	req->int1 = flags;	1364	req->int1 = flags;
548	req->int2 = mode;	1365	req->int2 = mode;
549		1366
550	REQ_SEND;	1367	REQ_SEND;
551	}	1368	}
552		1369
553	void	1370	void
554	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1371	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
555	PROTOTYPE: $;$
556	ALIAS:	1372	ALIAS:
557	aio_fsync = EIO_FSYNC	1373	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	1374	aio_fdatasync = EIO_FDATASYNC
		1375	aio_syncfs = EIO_SYNCFS
559	PPCODE:	1376	PPCODE:
560	{	1377	{
		1378	int fd = s_fileno_croak (fh, 0);
561	dREQ;	1379	dREQ;
562		1380
563	req->type = ix;	1381	req->type = ix;
564	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1383	req->int1 = fd;
566		1384
567	REQ_SEND (req);	1385	REQ_SEND;
568	}	1386	}
569		1387
570	void	1388	void
571	aio_close (SV *fh, 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)
572	PROTOTYPE: $;$
573	PPCODE:	1390	PPCODE:
574	{	1391	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1392	int fd = s_fileno_croak (fh, 0);
576	dREQ;	1393	dREQ;
577		1394
578	if (close_pipe < 0)	1395	req->type = EIO_SYNC_FILE_RANGE;
		1396	req->sv1 = newSVsv (fh);
		1397	req->int1 = fd;
		1398	req->offs = offset;
		1399	req->size = nbytes;
		1400	req->int2 = flags;
		1401
		1402	REQ_SEND;
		1403	}
		1404
		1405	void
		1406	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1407	PPCODE:
		1408	{
		1409	int fd = s_fileno_croak (fh, 0);
		1410	dREQ;
		1411
		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))
579	{	1431	{
580	int pipefd [2];	1432	int pipefd [2];
581		1433
		1434	if (
		1435	#ifdef _WIN32
		1436	_pipe (pipefd, 1, _O_BINARY) < 0
		1437	#else
582	if (pipe (pipefd) < 0	1438	pipe (pipefd) < 0
583	|| close (pipefd [1]) < 0
584	|| 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	)
585	abort (); /*D*/	1443	abort (); /*D*/
586		1444
587	close_pipe = pipefd [0];	1445	close_fd = pipefd [0];
588	}	1446	}
589		1447
590	req->type = EIO_DUP2;	1448	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	1449	req->int1 = close_fd;
592	req->sv2 = newSVsv (fh);	1450	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1451	req->int2 = fd;
594		1452
595	REQ_SEND (req);	1453	REQ_SEND;
596	}	1454	}
597		1455
598	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
599	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)
600	ALIAS:	1474	ALIAS:
601	aio_read = EIO_READ	1475	aio_read = EIO_READ
602	aio_write = EIO_WRITE	1476	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$
604	PPCODE:	1477	PPCODE:
605	{	1478	{
606	STRLEN svlen;	1479	STRLEN svlen;
		1480	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	1481	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	1482	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		1483
613	if (dataoffset < 0)	1484	if (dataoffset < 0)
614	dataoffset += svlen;	1485	dataoffset += svlen;
615		1486
616	if (dataoffset < 0 || dataoffset > svlen)	1487	if (dataoffset < 0 || dataoffset > svlen)
…		…
622	if (!SvOK (length) || len + dataoffset > svlen)	1493	if (!SvOK (length) || len + dataoffset > svlen)
623	len = svlen - dataoffset;	1494	len = svlen - dataoffset;
624	}	1495	}
625	else	1496	else
626	{	1497	{
627	/* read: grow scalar as necessary */	1498	/* read: check type and grow scalar as necessary */
		1499	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
628	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");
629	}	1503	}
630
631	if (len < 0)
632	croak ("length must not be negative");
633		1504
634	{	1505	{
635	dREQ;	1506	dREQ;
636		1507
637	req->type = ix;	1508	req->type = ix;
638	req->sv1 = newSVsv (fh);	1509	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1510	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1511	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	1512	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	1513	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	1514	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	1515	req->stroffset = dataoffset;
…		…
653	REQ_SEND;	1523	REQ_SEND;
654	}	1524	}
655	}	1525	}
656		1526
657	void	1527	void
658	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1528	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
659	PROTOTYPE: $$;$	1529	ALIAS:
		1530	aio_ioctl = EIO_IOCTL
		1531	aio_fcntl = EIO_FCNTL
660	PPCODE:	1532	PPCODE:
661	{	1533	{
662	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	{
663	dREQ;	1574	dREQ;
664		1575
665	req->type = EIO_READLINK;	1576	req->type = ix;
666	req->sv1 = newSVsv (path);	1577	req_set_path1 (req, pathname);
667	req->ptr1 = SvPVbyte_nolen (req->sv1);
668		1578
669	REQ_SEND;	1579	REQ_SEND;
670	}	1580	}
671		1581
672	void	1582	void
673	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV 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)
674	PROTOTYPE: $$$$;$
675	PPCODE:	1584	PPCODE:
676	{	1585	{
		1586	int ifd = s_fileno_croak (in_fh , 0);
		1587	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1588	dREQ;
678		1589
679	req->type = EIO_SENDFILE;	1590	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1591	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1592	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1593	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1594	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1595	req->offs = in_offset;
685	req->size = length;	1596	req->size = length;
686		1597
687	REQ_SEND;	1598	REQ_SEND;
688	}	1599	}
689		1600
690	void	1601	void
691	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1602	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
692	PROTOTYPE: $$$;$
693	PPCODE:	1603	PPCODE:
694	{	1604	{
		1605	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1606	dREQ;
696		1607
697	req->type = EIO_READAHEAD;	1608	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1609	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1610	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1611	req->offs = offset;
701	req->size = length;	1612	req->size = length;
702		1613
703	REQ_SEND;	1614	REQ_SEND;
704	}	1615	}
705		1616
706	void	1617	void
707	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1618	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
708	ALIAS:	1619	ALIAS:
709	aio_stat = EIO_STAT	1620	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1621	aio_lstat = EIO_LSTAT
		1622	aio_statvfs = EIO_STATVFS
711	PPCODE:	1623	PPCODE:
712	{	1624	{
713	dREQ;	1625	dREQ;
714		1626
715	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
716
717	if (SvPOK (req->sv1))
718	{
719	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}
722	else
723	{
724	req->type = EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}
727		1628
728	REQ_SEND;	1629	REQ_SEND;
729	}	1630	}
730		1631
731	void	1632	void
		1633	stat_xtime ()
		1634	ALIAS:
		1635	stat_atime = 1
		1636	stat_mtime = 2
		1637	stat_ctime = 4
		1638	stat_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	stat_xtimensec ()
		1647	ALIAS:
		1648	stat_atimensec = 1
		1649	stat_mtimensec = 2
		1650	stat_ctimensec = 4
		1651	stat_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
732	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)
733	PPCODE:	1676	PPCODE:
734	{	1677	{
735	dREQ;	1678	dREQ;
736		1679
737	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1680	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
738	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1681	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
739	req->sv1 = newSVsv (fh_or_path);	1682	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
740
741	if (SvPOK (req->sv1))
742	{
743	req->type = EIO_UTIME;
744	req->ptr1 = SvPVbyte_nolen (req->sv1);
745	}
746	else
747	{
748	req->type = EIO_FUTIME;
749	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
750	}
751		1683
752	REQ_SEND;	1684	REQ_SEND;
753	}	1685	}
754		1686
755	void	1687	void
756	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)
757	PPCODE:	1689	PPCODE:
758	{	1690	{
759	dREQ;	1691	dREQ;
760		1692
761	req->sv1 = newSVsv (fh_or_path);
762	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1693	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
763		1694	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
764	if (SvPOK (req->sv1))
765	{
766	req->type = EIO_TRUNCATE;
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768	}
769	else
770	{
771	req->type = EIO_FTRUNCATE;
772	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773	}
774		1695
775	REQ_SEND;	1696	REQ_SEND;
776	}	1697	}
777		1698
778	void	1699	void
779	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)
780	ALIAS:
781	aio_chmod = EIO_CHMOD
782	aio_mkdir = EIO_MKDIR
783	PPCODE:	1701	PPCODE:
784	{	1702	{
785	dREQ;	1703	dREQ;
786		1704
787	req->int2 = mode;	1705	req->int2 = mode;
788	req->sv1 = newSVsv (fh_or_path);	1706	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
789
790	if (SvPOK (req->sv1))
791	{
792	req->type = ix;
793	req->ptr1 = SvPVbyte_nolen (req->sv1);
794	}
795	else
796	{
797	req->type = EIO_FCHMOD;
798	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799	}
800		1707
801	REQ_SEND;	1708	REQ_SEND;
802	}	1709	}
803		1710
804	void	1711	void
805	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)
806	PPCODE:	1713	PPCODE:
807	{	1714	{
808	dREQ;	1715	dREQ;
809		1716
810	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1717	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
811	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1718	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
812	req->sv1 = newSVsv (fh_or_path);	1719	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
813
814	if (SvPOK (req->sv1))
815	{
816	req->type = EIO_CHOWN;
817	req->ptr1 = SvPVbyte_nolen (req->sv1);
818	}
819	else
820	{
821	req->type = EIO_FCHOWN;
822	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823	}
824		1720
825	REQ_SEND;	1721	REQ_SEND;
826	}	1722	}
827		1723
828	void	1724	void
		1725	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1726	PPCODE:
		1727	{
		1728	dREQ;
		1729
		1730	req->type = EIO_READDIR;
		1731	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1732
		1733	if (flags & EIO_READDIR_DENTS)
		1734	req->int1 |= EIO_READDIR_CUSTOM2;
		1735
		1736	req_set_path1 (req, pathname);
		1737
		1738	REQ_SEND;
		1739	}
		1740
		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
829	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1755	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
830	ALIAS:	1756	ALIAS:
831	aio_unlink = EIO_UNLINK	1757	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1758	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1759	aio_readdir = EIO_READDIR
834	PPCODE:	1760	PPCODE:
835	{	1761	{
836	dREQ;	1762	dREQ;
837		1763
838	req->type = ix;	1764	req->type = ix;
839	req->sv1 = newSVsv (pathname);	1765	req_set_path1 (req, pathname);
840	req->ptr1 = SvPVbyte_nolen (req->sv1);
841		1766
842	REQ_SEND;	1767	REQ_SEND;
843	}	1768	}
844		1769
845	void	1770	void
846	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1771	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
847	ALIAS:	1772	ALIAS:
848	aio_link = EIO_LINK	1773	aio_link = EIO_LINK
849	aio_symlink = EIO_SYMLINK	1774	aio_symlink = EIO_SYMLINK
850	aio_rename = EIO_RENAME	1775	aio_rename = EIO_RENAME
851	PPCODE:	1776	PPCODE:
852	{	1777	{
		1778	eio_wd wd2 = 0;
853	dREQ;	1779	dREQ;
854		1780
855	req->type = ix;	1781	req->type = ix;
856	req->sv1 = newSVsv (oldpath);	1782	req_set_path1 (req, oldpath);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);	1783	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
858	req->sv2 = newSVsv (newpath);	1784	req->int3 = (long)wd2;
859	req->ptr2 = SvPVbyte_nolen (req->sv2);
860		1785
861	REQ_SEND;	1786	REQ_SEND;
862	}	1787	}
863		1788
864	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
865	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)
866	PPCODE:	1807	PPCODE:
867	{	1808	{
868	dREQ;	1809	dREQ;
869		1810
870	req->type = EIO_MKNOD;	1811	req->type = EIO_MKNOD;
871	req->sv1 = newSVsv (pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873	req->int2 = (mode_t)mode;	1812	req->int2 = (mode_t)mode;
874	req->offs = dev;	1813	req->offs = dev;
		1814	req_set_path1 (req, pathname);
875		1815
876	REQ_SEND;	1816	REQ_SEND;
877	}	1817	}
878		1818
879	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
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1958	aio_busy (double delay, SV *callback = &PL_sv_undef)
881	PPCODE:	1959	PPCODE:
882	{	1960	{
883	dREQ;	1961	dREQ;
884		1962
885	req->type = EIO_BUSY;	1963	req->type = EIO_BUSY;
…		…
887		1965
888	REQ_SEND;	1966	REQ_SEND;
889	}	1967	}
890		1968
891	void	1969	void
892	aio_group (SV *callback=&PL_sv_undef)	1970	aio_group (SV *callback = &PL_sv_undef)
893	PROTOTYPE: ;$
894	PPCODE:	1971	PPCODE:
895	{	1972	{
896	dREQ;	1973	dREQ;
897		1974
898	req->type = EIO_GROUP;	1975	req->type = EIO_GROUP;
899		1976
		1977	PUTBACK;
900	eio_submit (req);	1978	req_submit (req);
		1979	SPAGAIN;
		1980
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1981	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1982	}
903		1983
904	void	1984	void
905	aio_nop (SV *callback=&PL_sv_undef)	1985	aio_nop (SV *callback = &PL_sv_undef)
906	ALIAS:	1986	ALIAS:
907	aio_nop = EIO_NOP	1987	aio_nop = EIO_NOP
908	aio_sync = EIO_SYNC	1988	aio_sync = EIO_SYNC
909	PPCODE:	1989	PPCODE:
910	{	1990	{
…		…
914		1994
915	REQ_SEND;	1995	REQ_SEND;
916	}	1996	}
917		1997
918	int	1998	int
919	aioreq_pri (int pri = 0)	1999	aioreq_pri (int pri = NO_INIT)
920	PROTOTYPE: ;$
921	CODE:	2000	CODE:
922	RETVAL = next_pri;	2001	RETVAL = next_pri;
923	if (items > 0)	2002	if (items > 0)
924	{	2003	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2004	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2016	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice;	2017	next_pri = nice;
939		2018
940	void	2019	void
941	flush ()	2020	flush ()
942	PROTOTYPE:
943	CODE:	2021	CODE:
944	while (eio_nreqs ())	2022	while (eio_nreqs ())
945	{	2023	{
946	poll_wait ();	2024	poll_wait ();
947	poll_cb ();	2025	poll_cb ();
948	}	2026	}
949		2027
950	int	2028	int
951	poll()	2029	poll ()
952	PROTOTYPE:
953	CODE:	2030	CODE:
954	poll_wait ();	2031	poll_wait ();
955	RETVAL = poll_cb ();	2032	RETVAL = poll_cb ();
956	OUTPUT:	2033	OUTPUT:
957	RETVAL	2034	RETVAL
958		2035
959	int	2036	int
960	poll_fileno()	2037	poll_fileno ()
961	PROTOTYPE:
962	CODE:	2038	CODE:
963	RETVAL = respipe [0];	2039	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	2040	OUTPUT:
965	RETVAL	2041	RETVAL
966		2042
967	int	2043	int
968	poll_cb(...)	2044	poll_cb (...)
969	PROTOTYPE:	2045	PROTOTYPE:
970	CODE:	2046	CODE:
971	RETVAL = poll_cb ();	2047	RETVAL = poll_cb ();
972	OUTPUT:	2048	OUTPUT:
973	RETVAL	2049	RETVAL
974		2050
975	void	2051	void
976	poll_wait()	2052	poll_wait ()
977	PROTOTYPE:
978	CODE:	2053	CODE:
979	poll_wait ();	2054	poll_wait ();
980		2055
981	int	2056	int
982	nreqs()	2057	nreqs ()
983	PROTOTYPE:
984	CODE:	2058	CODE:
985	RETVAL = eio_nreqs ();	2059	RETVAL = eio_nreqs ();
986	OUTPUT:	2060	OUTPUT:
987	RETVAL	2061	RETVAL
988		2062
989	int	2063	int
990	nready()	2064	nready ()
991	PROTOTYPE:
992	CODE:	2065	CODE:
993	RETVAL = eio_nready ();	2066	RETVAL = eio_nready ();
994	OUTPUT:	2067	OUTPUT:
995	RETVAL	2068	RETVAL
996		2069
997	int	2070	int
998	npending()	2071	npending ()
999	PROTOTYPE:
1000	CODE:	2072	CODE:
1001	RETVAL = eio_npending ();	2073	RETVAL = eio_npending ();
1002	OUTPUT:	2074	OUTPUT:
1003	RETVAL	2075	RETVAL
1004		2076
1005	int	2077	int
1006	nthreads()	2078	nthreads ()
1007	PROTOTYPE:
1008	CODE:	2079	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	2080	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	2081	OUTPUT:
1013	RETVAL	2082	RETVAL
		2083
		2084	int
		2085	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2086	CODE:
		2087	RETVAL = posix_fadvise (fh, offset, length, advice);
		2088	OUTPUT:
		2089	RETVAL
		2090
		2091	IV
		2092	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2093	CODE:
		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	}
1014		2435
1015	void _on_next_submit (SV *cb)	2436	void _on_next_submit (SV *cb)
1016	CODE:	2437	CODE:
1017	SvREFCNT_dec (on_next_submit);	2438	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2439	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		2440
1020	PROTOTYPES: DISABLE	2441	PROTOTYPES: DISABLE
1021		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
1022	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2471	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1023		2472
1024	void	2473	void
1025	cancel (aio_req_ornot req)	2474	cancel (aio_req_ornot req)
1026	CODE:	2475	CODE:
1027	eio_cancel (req);	2476	eio_cancel (req);
1028		2477
1029	void	2478	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2479	cb (aio_req_ornot req, SV *callback = NO_INIT)
1031	CODE:	2480	PPCODE:
		2481	{
		2482	if (GIMME_V != G_VOID)
		2483	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		2484
		2485	if (items > 1)
		2486	{
		2487	SV *cb_cv = get_cb (callback);
		2488
1032	SvREFCNT_dec (req->callback);	2489	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	2490	req->callback = SvREFCNT_inc (cb_cv);
		2491	}
		2492	}
1034		2493
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	2494	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		2495
1037	void	2496	void
1038	add (aio_req grp, ...)	2497	add (aio_req grp, ...)
…		…
1070	AV *av;	2529	AV *av;
1071		2530
1072	grp->errorno = errno;	2531	grp->errorno = errno;
1073		2532
1074	av = newAV ();	2533	av = newAV ();
		2534	av_extend (av, items - 1);
1075		2535
1076	for (i = 1; i < items; ++i )	2536	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	2537	av_push (av, newSVsv (ST (i)));
1078		2538
1079	SvREFCNT_dec (grp->sv1);	2539	SvREFCNT_dec (grp->sv1);
…		…
1089	limit (aio_req grp, int limit)	2549	limit (aio_req grp, int limit)
1090	CODE:	2550	CODE:
1091	eio_grp_limit (grp, limit);	2551	eio_grp_limit (grp, limit);
1092		2552
1093	void	2553	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	2554	feed (aio_req grp, SV *callback = &PL_sv_undef)
1095	CODE:	2555	CODE:
1096	{	2556	{
1097	SvREFCNT_dec (grp->sv2);	2557	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	2558	grp->sv2 = newSVsv (callback);
		2559	grp->feed = aio_grp_feed;
1099		2560
1100	if (grp->int2 <= 0)	2561	if (grp->int2 <= 0)
1101	grp->int2 = 2;	2562	grp->int2 = 2;
1102		2563
1103	eio_grp_limit (grp, grp->int2);	2564	eio_grp_limit (grp, grp->int2);

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