[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.267 by root, Sat Aug 25 19:25:32 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
8		12
9	#include <stddef.h>	13	#include <stddef.h>
10	#include <stdlib.h>	14	#include <stdlib.h>
11	#include <errno.h>	15	#include <errno.h>
12	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
13	#include <sys/stat.h>	18	#include <sys/stat.h>
14	#include <limits.h>	19	#include <limits.h>
15	#include <fcntl.h>	20	#include <fcntl.h>
16	#include <sched.h>	21	#include <sched.h>
17		22
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
		29	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES
		30	# include <sys/mman.h>
		31	#endif
		32
		33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)
		39	# include <linux/fs.h>
		40	# ifdef FS_IOC_FIEMAP
		41	# include <linux/types.h>
		42	# include <linux/fiemap.h>
		43	# define HAVE_FIEMAP 1
		44	# endif
		45	#endif
		46
		47	/* perl namespace pollution */
		48	#undef VERSION
		49
		50	/* perl stupidly overrides readdir and maybe others */
		51	/* with thread-unsafe versions, imagine that :( */
		52	#undef readdir
		53	#undef opendir
		54	#undef closedir
		55
18	#ifdef _WIN32	56	#ifdef _WIN32
19		57
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	58	// perl overrides all those nice libc functions
		59
		60	#undef malloc
		61	#undef free
25	# undef open	62	#undef open
26	# undef read	63	#undef read
27	# undef write	64	#undef write
28	# undef send	65	#undef send
29	# undef recv	66	#undef recv
30	# undef stat	67	#undef stat
		68	#undef lstat
31	# undef fstat	69	#undef fstat
32	# define lstat stat
33	# undef truncate	70	#undef truncate
34	# undef ftruncate	71	#undef ftruncate
35	# undef open	72	#undef open
		73	#undef link
36	# undef close	74	#undef close
37	# undef unlink	75	#undef unlink
		76	#undef mkdir
38	# undef rmdir	77	#undef rmdir
39	# undef rename	78	#undef rename
40	# undef lseek	79	#undef lseek
		80	#undef opendir
		81	#undef readdir
		82	#undef closedir
		83	#undef chmod
		84	#undef fchmod
		85	#undef dup
		86	#undef dup2
		87	#undef abort
		88	#undef pipe
		89	#undef utime
41		90
42	# define chown(a,b,c) (errno = ENOSYS, -1)	91	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	92	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		93
56	#else	94	#else
57		95
58	# include <sys/time.h>	96	#include <sys/time.h>
59	# include <sys/select.h>	97	#include <sys/select.h>
60	# include <unistd.h>	98	#include <unistd.h>
61	# include <utime.h>	99	#include <utime.h>
62	# include <signal.h>	100	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		101
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	102	#define EIO_STRUCT_STAT Stat_t
68		103
69	/* use NV for 32 bit perls as it allows larger offsets */	104	#endif
70	#if IVSIZE >= 8	105
71	# define SvVAL64 SvIV	106	/*****************************************************************************/
		107
		108	#if __GNUC__ >= 3
		109	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	110	#else
73	# define SvVAL64 SvNV	111	# define expect(expr,value) (expr)
74	#endif	112	#endif
75		113
76	static HV *stash;	114	#define expect_false(expr) expect ((expr) != 0, 0)
		115	#define expect_true(expr) expect ((expr) != 0, 1)
		116
		117	/*****************************************************************************/
		118
		119	#include "config.h"
		120
		121	#if HAVE_ST_XTIMENSEC
		122	# define ATIMENSEC PL_statcache.st_atimensec
		123	# define MTIMENSEC PL_statcache.st_mtimensec
		124	# define CTIMENSEC PL_statcache.st_ctimensec
		125	#elif HAVE_ST_XTIMESPEC
		126	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		127	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		128	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		129	#else
		130	# define ATIMENSEC 0
		131	# define MTIMENSEC 0
		132	# define CTIMENSEC 0
		133	#endif
		134
		135	#if HAVE_ST_BIRTHTIMENSEC
		136	# define BTIMESEC PL_statcache.st_birthtime
		137	# define BTIMENSEC PL_statcache.st_birthtimensec
		138	#elif HAVE_ST_BIRTHTIMESPEC
		139	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		140	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		141	#else
		142	# define BTIMESEC 0
		143	# define BTIMENSEC 0
		144	#endif
		145
		146	#if HAVE_ST_GEN
		147	# define ST_GEN PL_statcache.st_gen
		148	#else
		149	# define ST_GEN 0
		150	#endif
		151
		152	#include "schmorp.h"
		153
		154	#if HAVE_EVENTFD
		155	# include <sys/eventfd.h>
		156	#endif
		157
		158	#if HAVE_TIMERFD
		159	# include <sys/timerfd.h>
		160	#endif
		161
		162	#if HAVE_RLIMITS
		163	#include <sys/time.h>
		164	#include <sys/resource.h>
		165	#endif
		166
77	typedef SV SV8; /* byte-sv, used for argument-checking */	167	typedef SV SV8; /* byte-sv, used for argument-checking */
		168	typedef int aio_rfd; /* read file desriptor */
		169	typedef int aio_wfd; /* write file descriptor */
78		170
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	171	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		172
82	#define EIO_COMMON \	173	#define EIO_REQ_MEMBERS \
83	SV *callback; \	174	SV *callback; \
84	SV sv1, sv2; \	175	SV sv1, sv2; \
		176	SV sv3, sv4; \
85	STRLEN stroffset; \	177	STRLEN stroffset; \
86	SV *self	178	SV *self;
		179
		180	#define EIO_NO_WRAPPERS 1
87		181
88	#include "libeio/eio.h"	182	#include "libeio/eio.h"
89		183
90	static int req_invoke (eio_req *req);	184	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	185	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	186	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	187	#define EIO_DESTROY(req) req_destroy (req)
		188
		189	#include "libeio/eio.c"
		190
		191	#if !HAVE_POSIX_FADVISE
		192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		193	#endif
		194
		195	#if !HAVE_POSIX_MADVISE
		196	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		197	#endif
		198
		199	#ifndef MAP_ANONYMOUS
		200	# ifdef MAP_ANON
		201	# define MAP_ANONYMOUS MAP_ANON
		202	# else
		203	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		204	# endif
		205	#endif
		206
		207	#ifndef makedev
		208	# define makedev(maj,min) (((maj) << 8) \| (min))
		209	#endif
		210	#ifndef major
		211	# define major(dev) ((dev) >> 8)
		212	#endif
		213	#ifndef minor
		214	# define minor(dev) ((dev) & 0xff)
		215	#endif
		216
		217	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		218	#ifdef __sun
		219	# undef PAGESIZE
		220	#endif
		221
		222	#if PAGESIZE <= 0
		223	# define PAGESIZE sysconf (_SC_PAGESIZE)
		224	#endif
		225
		226	/*****************************************************************************/
		227
		228	#if !_POSIX_MAPPED_FILES
		229	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		230	# define munmap(addr,length) EIO_ENOSYS ()
		231	#endif
		232
		233	#if !_POSIX_MEMORY_PROTECTION
		234	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		235	#endif
		236
		237	#if !MREMAP_MAYMOVE
		238	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		239	#endif
		240
		241	#define FOREIGN_MAGIC PERL_MAGIC_ext
		242
		243	static int ecb_cold
		244	mmap_free (pTHX_ SV sv, MAGIC mg)
		245	{
		246	int old_errno = errno;
		247	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		248	errno = old_errno;
		249
		250	mg->mg_obj = 0; /* just in case */
		251
		252	SvREADONLY_off (sv);
		253
		254	if (SvPVX (sv) != mg->mg_ptr)
		255	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		256
		257	SvCUR_set (sv, 0);
		258	SvPVX (sv) = 0;
		259	SvOK_off (sv);
		260
		261	return 0;
		262	}
		263
		264	static MGVTBL mmap_vtbl = {
		265	0, 0, 0, 0, mmap_free
		266	};
		267
		268	static int ecb_cold
		269	sysfree_free (pTHX_ SV sv, MAGIC mg)
		270	{
		271	free (mg->mg_ptr);
		272	mg->mg_obj = 0; /* just in case */
		273
		274	SvREADONLY_off (sv);
		275
		276	if (SvPVX (sv) != mg->mg_ptr)
		277	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		278
		279	SvCUR_set (sv, 0);
		280	SvPVX (sv) = 0;
		281	SvOK_off (sv);
		282
		283	return 0;
		284	}
		285
		286	static MGVTBL sysfree_vtbl = {
		287	0, 0, 0, 0, sysfree_free
		288	};
		289
		290	/*****************************************************************************/
		291
		292	/* helper: set scalar to foreign ptr with custom free */
		293	static void
		294	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		295	{
		296	sv_force_normal (sv);
		297
		298	/* we store the length in mg_obj, as namlen is I32 :/ */
		299	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		300	->mg_obj = (SV *)length;
		301
		302	SvUPGRADE (sv, SVt_PV); /* nop... */
		303
		304	if (SvLEN (sv))
		305	Safefree (SvPVX (sv));
		306
		307	SvPVX (sv) = (char *)addr;
		308	SvCUR_set (sv, length);
		309	SvLEN_set (sv, 0);
		310	SvPOK_only (sv);
		311	}
		312
		313	static void
		314	sv_clear_foreign (SV *sv)
		315	{
		316	/* todo: iterate over magic and only free ours, but of course */
		317	/* the perl5porters will call that (correct) behaviour buggy */
		318	sv_unmagic (sv, FOREIGN_MAGIC);
		319	}
		320
		321	/*****************************************************************************/
		322
		323	/* defines all sorts of constants to 0 unless they are already defined */
		324	/* also provides const_iv_ and const_niv_ macros for them */
		325	#include "def0.h"
		326
		327	/*****************************************************************************/
		328
		329	static void
		330	fiemap (eio_req *req)
		331	{
		332	req->result = -1;
		333
		334	#if HAVE_FIEMAP
		335	/* assume some c99 */
		336	struct fiemap *fiemap = 0;
		337	size_t end_offset;
		338	int count = req->int3;
		339
		340	req->flags \|= EIO_FLAG_PTR1_FREE;
		341
		342	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		343	/* increase in 3.5kb steps */
		344	if (count < 0)
		345	count = 8;
		346
		347	fiemap = malloc (sizeof (fiemap) + sizeof (struct fiemap_extent) count);
		348	errno = ENOMEM;
		349	if (!fiemap)
		350	return;
		351
		352	req->ptr1 = fiemap;
		353
		354	fiemap->fm_start = req->offs;
		355	fiemap->fm_length = req->size;
		356	fiemap->fm_flags = req->int2;
		357	fiemap->fm_extent_count = count;
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		360	return;
		361
		362	if (req->int3 >= 0 /* not autosizing */
		363	\|\| !fiemap->fm_mapped_extents /* no more extents */
		364	\|\| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		365	goto done;
		366
		367	/* else we have to loop -
		368	* it would be tempting (actually I tried that first) to just query the
		369	* number of extents needed, but linux often feels like not returning all
		370	* extents, without telling us it left any out. this complicates
		371	* this quite a bit.
		372	*/
		373
		374	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		375
		376	for (;;)
		377	{
		378	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		379	char scratch[3072];
		380	struct fiemap incmap = (struct fiemap )scratch;
		381
		382	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		383	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		384	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		385	incmap->fm_flags = fiemap->fm_flags;
		386	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		387
		388	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		389	return;
		390
		391	if (!incmap->fm_mapped_extents)
		392	goto done;
		393
		394	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		395	fiemap = realloc (fiemap, sizeof (fiemap) + sizeof (struct fiemap_extent) count);
		396	errno = ENOMEM;
		397	if (!fiemap)
		398	return;
		399
		400	req->ptr1 = fiemap;
		401
		402	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		403	{
		404	struct fiemap_extent *e = incmap->fm_extents + count;
		405
		406	if (e->fe_logical + e->fe_length >= end_offset)
		407	goto done;
		408
		409	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		410
		411	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		412	goto done;
		413
		414	}
		415	}
		416
		417	done:
		418	req->result = 0;
		419
		420	#else
		421	errno = ENOSYS;
		422	#endif
		423	}
		424
		425	/*****************************************************************************/
		426
		427	static int close_fd; /* dummy fd to close fds via dup2 */
96		428
97	enum {	429	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	430	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	431	};
100		432
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	433	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	434	typedef eio_req *aio_req_ornot;
		435	typedef eio_wd aio_wd;
105		436
		437	static SV *on_next_submit;
		438	static int next_pri = EIO_PRI_DEFAULT;
106	static int max_outstanding = 0;	439	static int max_outstanding;
107		440
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	441	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		442
112	static void req_destroy (aio_req req);	443	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	444	static void req_cancel (aio_req req);
114		445
115	static void want_poll (void)	446	static void
		447	want_poll (void)
116	{	448	{
117	/* write a dummy byte to the pipe so fh becomes ready */	449	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	450	s_epipe_signal (&respipe);
119	}	451	}
120		452
121	static void done_poll (void)	453	static void
		454	done_poll (void)
122	{	455	{
123	/* read any signals sent by the worker threads */	456	/* read any signals sent by the worker threads */
124	char buf [4];	457	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	458	}
128		459
129	/* must be called at most once */	460	/* must be called at most once */
130	static SV req_sv (aio_req req, const char klass)	461	static SV *
		462	req_sv (aio_req req, HV *stash)
131	{	463	{
132	if (!req->self)	464	if (!req->self)
133	{	465	{
134	req->self = (SV *)newHV ();	466	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	467	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	468	}
137		469
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	470	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	471	}
140		472
141	static aio_req SvAIO_REQ (SV *sv)	473	static SV *
		474	newSVaio_wd (aio_wd wd)
		475	{
		476	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		477	}
		478
		479	static aio_req
		480	SvAIO_REQ (SV *sv)
142	{	481	{
143	MAGIC *mg;	482	MAGIC *mg;
144		483
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	484	if (!SvROK (sv)
		485	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		486	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		487	&& SvSTASH (SvRV (sv)) != aio_req_stash
		488	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	489	croak ("object of class IO::AIO::REQ expected");
147		490
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	491	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		492
150	return mg ? (aio_req)mg->mg_ptr : 0;	493	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	494	}
152		495
		496	static aio_wd
		497	SvAIO_WD (SV *sv)
		498	{
		499	if (!SvROK (sv)
		500	\|\| SvTYPE (SvRV (sv)) != SVt_PVMG
		501	\|\| SvSTASH (SvRV (sv)) != aio_wd_stash)
		502	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		503
		504	return (aio_wd)(long)SvIVX (SvRV (sv));
		505	}
		506
		507	static SV *
		508	newmortalFH (int fd, int flags)
		509	{
		510	if (fd < 0)
		511	return &PL_sv_undef;
		512
		513	GV gv = (GV )sv_newmortal ();
		514	char sym[64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		518	gv_init (gv, aio_stash, sym, symlen, 0);
		519
		520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	fd
		526	);
		527
		528	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		529	? (SV *)gv : &PL_sv_undef;
		530	}
		531
		532	static void
153	static void aio_grp_feed (aio_req grp)	533	aio_grp_feed (aio_req grp)
154	{	534	{
155	if (grp->sv2 && SvOK (grp->sv2))	535	if (grp->sv2 && SvOK (grp->sv2))
156	{	536	{
157	dSP;	537	dSP;
158		538
159	ENTER;	539	ENTER;
160	SAVETMPS;	540	SAVETMPS;
161	PUSHMARK (SP);	541	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	542	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	543	PUTBACK;
164	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	544	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
165	SPAGAIN;	545	SPAGAIN;
166	FREETMPS;	546	FREETMPS;
167	LEAVE;	547	LEAVE;
168	}	548	}
169	}	549	}
170		550
		551	static void
		552	req_submit (eio_req *req)
		553	{
		554	eio_submit (req);
		555
		556	if (expect_false (on_next_submit))
		557	{
		558	dSP;
		559	SV *cb = sv_2mortal (on_next_submit);
		560
		561	on_next_submit = 0;
		562
		563	PUSHMARK (SP);
		564	PUTBACK;
		565	call_sv (cb, G_DISCARD \| G_EVAL);
		566	}
		567	}
		568
		569	static int
171	static int req_invoke (eio_req *req)	570	req_invoke (eio_req *req)
172	{	571	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	572	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	573	SvREADONLY_off (req->sv2);
177		574
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	575	if (!EIO_CANCELLED (req) && req->callback)
179	{	576	{
		577	dSP;
		578	static SV sv_result_cache; / caches the result integer SV */
		579	SV *sv_result;
		580
180	ENTER;	581	ENTER;
181	SAVETMPS;	582	SAVETMPS;
182	PUSHMARK (SP);	583	PUSHMARK (SP);
183	EXTEND (SP, 1);	584	EXTEND (SP, 1);
184		585
		586	/* do not recreate the result IV from scratch each time */
		587	if (expect_true (sv_result_cache))
		588	{
		589	sv_result = sv_result_cache; sv_result_cache = 0;
		590	SvIV_set (sv_result, req->result);
		591	SvIOK_only (sv_result);
		592	}
		593	else
		594	{
		595	sv_result = newSViv (req->result);
		596	SvREADONLY_on (sv_result);
		597	}
		598
185	switch (req->type)	599	switch (req->type)
186	{	600	{
		601	case EIO_WD_OPEN:
		602	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		603	break;
		604
187	case EIO_READDIR:	605	case EIO_READDIR:
188	{	606	{
189	SV *rv = &PL_sv_undef;	607	SV *rv = &PL_sv_undef;
190		608
191	if (req->result >= 0)	609	if (req->result >= 0)
192	{	610	{
193	int i;	611	int i;
194	char *buf = req->ptr2;	612	char names = (char )req->ptr2;
		613	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
195	AV *av = newAV ();	614	AV *av = newAV ();
196		615
197	av_extend (av, req->result - 1);	616	av_extend (av, req->result - 1);
198		617
199	for (i = 0; i < req->result; ++i)	618	for (i = 0; i < req->result; ++i)
200	{	619	{
201	SV *sv = newSVpv (buf, 0);	620	if (req->int1 & EIO_READDIR_DENTS)
		621	{
		622	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		623
		624	if (req->int1 & EIO_READDIR_CUSTOM2)
		625	{
		626	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		627	AV *avent = newAV ();
		628
		629	av_extend (avent, 2);
		630
		631	if (!sv_type [ent->type])
		632	{
		633	sv_type [ent->type] = newSViv (ent->type);
		634	SvREADONLY_on (sv_type [ent->type]);
		635	}
		636
		637	av_store (avent, 0, namesv);
		638	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		639	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		640
		641	av_store (av, i, newRV_noinc ((SV *)avent));
		642	}
		643	else
203	av_store (av, i, sv);	644	av_store (av, i, namesv);
		645
		646	++ent;
		647	}
		648	else
		649	{
		650	SV *name = newSVpv (names, 0);
		651	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	652	names += SvCUR (name) + 1;
		653	}
205	}	654	}
206		655
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	656	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	657	}
209		658
210	PUSHs (rv);	659	PUSHs (rv);
		660
		661	if (req->int1 & EIO_READDIR_CUSTOM1)
		662	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
211	}	663	}
212	break;	664	break;
213		665
214	case EIO_OPEN:	666	case EIO_OPEN:
		667	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR)));
		668	break;
		669
		670	case EIO_STATVFS:
		671	case EIO_FSTATVFS:
215	{	672	{
216	/* convert fd to fh */
217	SV *fh = &PL_sv_undef;	673	SV *rv = &PL_sv_undef;
218		674
		675	#ifndef _WIN32
219	if (req->result >= 0)	676	if (req->result >= 0)
220	{	677	{
		678	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
221	GV gv = (GV )sv_newmortal ();	679	HV *hv = newHV ();
222	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	680	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
223	char sym [64];	681	* chooses to make it a struct.
224	int symlen;
225		682	*/
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	683	unsigned long fsid = 0;
227	gv_init (gv, stash, sym, symlen, 0);	684	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
228		685
229	symlen = snprintf (	686	rv = sv_2mortal (newRV_noinc ((SV *)hv));
230	sym,
231	sizeof (sym),
232	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result
235	);
236		687
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	688	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
238	fh = (SV *)gv;	689	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		690	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		691	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		692	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		693	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		694	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		695	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		696	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		697	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		698	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
239	}	699	}
		700	#endif
240		701
241	PUSHs (fh);	702	PUSHs (rv);
242	}	703	}
		704
243	break;	705	break;
244		706
245	case EIO_GROUP:	707	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	708	req->int1 = 2; /* mark group as finished */
247		709
…		…
259	case EIO_NOP:	721	case EIO_NOP:
260	case EIO_BUSY:	722	case EIO_BUSY:
261	break;	723	break;
262		724
263	case EIO_READLINK:	725	case EIO_READLINK:
		726	case EIO_REALPATH:
264	if (req->result > 0)	727	if (req->result > 0)
265	{	728	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	729	break;
271		730
272	case EIO_STAT:	731	case EIO_STAT:
273	case EIO_LSTAT:	732	case EIO_LSTAT:
274	case EIO_FSTAT:	733	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	734	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		735
276	PL_laststatval = req->result;	736	if (!(PL_laststatval = req->result))
		737	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	738	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	739
		740	PUSHs (sv_result);
279	break;	741	break;
280		742
		743	case EIO_SEEK:
		744	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		745	break;
		746
281	case EIO_READ:	747	case EIO_READ:
		748	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	749	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	750	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	751	SvPOK_only (req->sv2);
		752	SvSETMAGIC (req->sv2);
		753	PUSHs (sv_result);
		754	}
285	break;	755	break;
286		756
287	case EIO_DUP2:	757	case EIO_SLURP:
		758	{
		759	if (req->result >= 0)
		760	{
		761	/* if length was originally not known, we steal the malloc'ed memory */
		762	if (req->flags & EIO_FLAG_PTR2_FREE)
		763	{
		764	req->flags &= ~EIO_FLAG_PTR2_FREE;
		765	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		766	}
		767	else
		768	{
		769	SvCUR_set (req->sv2, req->result);
		770	*SvEND (req->sv2) = 0;
		771	SvPOK_only (req->sv2);
		772	}
		773
		774	SvSETMAGIC (req->sv2);
		775	}
		776
		777	PUSHs (sv_result);
		778	}
		779	break;
		780
		781	case EIO_CUSTOM:
		782	if (req->feed == fiemap)
		783	{
		784	#if HAVE_FIEMAP
		785	if (!req->result)
		786	{
		787	struct fiemap fiemap = (struct fiemap )req->ptr1;
		788
		789	if (fiemap->fm_extent_count)
		790	{
		791	AV *av = newAV ();
		792	int i;
		793
		794	while (fiemap->fm_mapped_extents)
		795	{
		796	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		797	AV *ext_av = newAV ();
		798
		799	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		800	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		801	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		802	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		803
		804	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		805	}
		806
		807	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		808	}
		809	else
		810	{
		811	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		812	PUSHs (sv_result);
		813	}
		814	}
		815	#endif
		816	}
		817	else
		818	PUSHs (sv_result);
		819	break;
		820
		821	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	822	if (req->result > 0)
289	req->result = 0;	823	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	824	/* FALLTHROUGH */
291		825
292	default:	826	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	827	PUSHs (sv_result);
294	break;	828	break;
295	}	829	}
296		830
297	errno = req->errorno;	831	errno = req->errorno;
298		832
299	PUTBACK;	833	PUTBACK;
300	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	834	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
301	SPAGAIN;	835	SPAGAIN;
302		836
		837	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		838	SvREFCNT_dec (sv_result);
		839	else
		840	sv_result_cache = sv_result;
		841
303	FREETMPS;	842	FREETMPS;
304	LEAVE;	843	LEAVE;
305		844
306	PUTBACK;	845	PUTBACK;
307	}	846	}
308		847
309	return !!SvTRUE (ERRSV);	848	return !!SvTRUE (ERRSV);
310	}	849	}
311		850
		851	static void
312	static void req_destroy (aio_req req)	852	req_destroy (aio_req req)
313	{	853	{
314	if (req->self)	854	if (req->self)
315	{	855	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	856	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	857	SvREFCNT_dec (req->self);
318	}	858	}
319		859
320	SvREFCNT_dec (req->sv1);	860	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	861	SvREFCNT_dec (req->sv2);
		862	SvREFCNT_dec (req->sv3);
		863	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	864	SvREFCNT_dec (req->callback);
323		865
324	Safefree (req);	866	free (req);
325	}	867	}
326		868
		869	static void
327	static void req_cancel_subs (aio_req grp)	870	req_cancel_subs (aio_req grp)
328	{	871	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	872	if (grp->type != EIO_GROUP)
332	return;	873	return;
333		874
334	SvREFCNT_dec (grp->sv2);	875	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	876	grp->sv2 = 0;
336		877
337	eio_grp_cancel (grp);	878	eio_grp_cancel (grp);
338	}	879	}
339		880
340	#ifdef USE_SOCKETS_AS_HANDLES	881	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	882	create_respipe (void)
342	#else	883	{
343	# define TO_SOCKET(x) (x)	884	if (s_epipe_renew (&respipe))
344	#endif	885	croak ("IO::AIO: unable to initialize result pipe");
		886	}
345		887
346	static void	888	static void
347	create_respipe (void)	889	poll_wait (void)
348	{	890	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))
358	#endif
359	croak ("unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}
383
384	static void poll_wait (void)
385	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	891	while (eio_nreqs ())
389	{	892	{
390	int size;	893	int size;
391		894
392	X_LOCK (reslock);	895	X_LOCK (EIO_POOL->reslock);
393	size = res_queue.size;	896	size = EIO_POOL->res_queue.size;
394	X_UNLOCK (reslock);	897	X_UNLOCK (EIO_POOL->reslock);
395		898
396	if (size)	899	if (size)
397	return;	900	return;
398		901
399	maybe_start_thread ();	902	etp_maybe_start_thread (EIO_POOL);
400		903
401	FD_ZERO (&rfd);	904	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	905	}
406	}	906	}
407		907
408	static int poll_cb (void)	908	static int
		909	poll_cb (void)
409	{	910	{
410	int res;	911	for (;;)
411
412	do
413	{	912	{
414	res = eio_poll ();	913	int res = eio_poll ();
415		914
416	if (res > 0)	915	if (res > 0)
417	croak (0);	916	croak (0);
		917
		918	if (!max_outstanding \|\| max_outstanding > eio_nreqs ())
		919	return res;
		920
		921	poll_wait ();
418	}	922	}
419	while (max_outstanding && max_outstanding <= eio_nreqs ());
420
421	return res;
422	}	923	}
423		924
424	static void atfork_child (void)	925	static void ecb_cold
		926	reinit (void)
425	{	927	{
426	create_respipe ();	928	create_respipe ();
		929
		930	if (eio_init (want_poll, done_poll) < 0)
		931	croak ("IO::AIO: unable to initialise eio library");
		932	}
		933
		934	/*****************************************************************************/
		935
		936	static SV *
		937	get_cb (SV *cb_sv)
		938	{
		939	SvGETMAGIC (cb_sv);
		940	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		941	}
		942
		943	static aio_req ecb_noinline
		944	dreq (SV *callback)
		945	{
		946	SV *cb_cv;
		947	aio_req req;
		948	int req_pri = next_pri;
		949	next_pri = EIO_PRI_DEFAULT;
		950
		951	cb_cv = get_cb (callback);
		952
		953	req = calloc (sizeof (*req), 1);
		954	if (!req)
		955	croak ("out of memory during eio_req allocation");
		956
		957	req->callback = SvREFCNT_inc (cb_cv);
		958	req->pri = req_pri;
		959
		960	return req;
427	}	961	}
428		962
429	#define dREQ \	963	#define dREQ \
430	aio_req req; \	964	aio_req req = dreq (callback); \
431	int req_pri = next_pri; \
432	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
433	\
434	if (SvOK (callback) && !SvROK (callback)) \
435	croak ("callback must be undef or of reference type"); \
436	\
437	Newz (0, req, 1, eio_req); \
438	if (!req) \
439	croak ("out of memory during eio_req allocation"); \
440	\
441	req->callback = newSVsv (callback); \
442	req->pri = req_pri
443		965
444	#define REQ_SEND \	966	#define REQ_SEND \
		967	PUTBACK; \
445	eio_submit (req); \	968	req_submit (req); \
		969	SPAGAIN; \
446	\	970	\
447	if (GIMME_V != G_VOID) \	971	if (GIMME_V != G_VOID) \
448	XPUSHs (req_sv (req, AIO_REQ_KLASS));	972	XPUSHs (req_sv (req, aio_req_stash));
449		973
		974	ecb_inline void
		975	req_set_path (aio_req req, SV path, SV wdsv, SV pathsv, eio_wd wd, void **ptr)
		976	{
		977	if (expect_false (SvROK (path)))
		978	{
		979	SV *rv = SvRV (path);
		980	SV *wdob;
		981
		982	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		983	{
		984	path = AvARRAY (rv)[1];
		985	wdob = AvARRAY (rv)[0];
		986
		987	if (SvOK (wdob))
		988	{
		989	*wd = SvAIO_WD (wdob);
		990	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		991	}
		992	else
		993	*wd = EIO_INVALID_WD;
		994	}
		995	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		996	{
		997	*wd = (aio_wd)(long)SvIVX (rv);
		998	*wdsv = SvREFCNT_inc_NN (rv);
		999	*ptr = ".";
		1000	return; /* path set to "." */
		1001	}
		1002	else
		1003	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		1004	}
		1005
		1006	*pathsv = newSVsv (path);
		1007	ptr = SvPVbyte_nolen (pathsv);
		1008	}
		1009
		1010	static void ecb_noinline
		1011	req_set_path1 (aio_req req, SV *path)
		1012	{
		1013	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		1014	}
		1015
		1016	static void ecb_noinline
		1017	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		1018	{
		1019	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		1020
		1021	switch (SvTYPE (rv))
		1022	{
		1023	case SVt_PVIO:
		1024	case SVt_PVLV:
		1025	case SVt_PVGV:
		1026	req->type = type_fh;
		1027	req->sv1 = newSVsv (fh_or_path);
		1028	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1029	break;
		1030
		1031	default:
		1032	req->type = type_path;
		1033	req_set_path1 (req, fh_or_path);
		1034	break;
		1035	}
		1036	}
		1037
		1038	/*****************************************************************************/
		1039
		1040	static void
		1041	ts_set (struct timespec *ts, NV value)
		1042	{
		1043	ts->tv_sec = value;
		1044	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1045	}
		1046
		1047	static NV
		1048	ts_get (const struct timespec *ts)
		1049	{
		1050	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1051	}
		1052
		1053	/*****************************************************************************/
		1054
		1055	XS(boot_IO__AIO) ecb_cold;
		1056
450	MODULE = IO::AIO PACKAGE = IO::AIO	1057	MODULE = IO::AIO PACKAGE = IO::AIO
451		1058
452	PROTOTYPES: ENABLE	1059	PROTOTYPES: ENABLE
453		1060
454	BOOT:	1061	BOOT:
455	{	1062	{
		1063	static const struct {
		1064	const char *name;
		1065	IV iv;
		1066	} *civ, const_iv[] = {
		1067	# define const_niv(name, value) { # name, (IV) value },
		1068	# define const_iv(name) { # name, (IV) name },
		1069	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1070
		1071	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1072	/* the first block can be undef if missing */
		1073	const_iv (ENOSYS)
		1074	const_iv (EXDEV)
		1075	const_iv (EBADR)
		1076
		1077	/* for lseek */
		1078	const_iv (SEEK_DATA)
		1079	const_iv (SEEK_HOLE)
		1080
		1081	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1082	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1083	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1084	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1085	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1086	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1087
		1088	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1089	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1090	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1091	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1092	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1093
		1094	/* the second block will be 0 when missing */
		1095	const_iv (O_ACCMODE)
		1096
		1097	const_iv (O_RDONLY)
		1098	const_iv (O_WRONLY)
		1099	const_iv (O_RDWR)
		1100	const_iv (O_CREAT)
		1101	const_iv (O_TRUNC)
		1102	const_iv (O_EXCL)
		1103	const_iv (O_APPEND)
		1104
		1105	const_iv (O_ASYNC)
		1106	const_iv (O_DIRECT)
		1107	const_iv (O_NOATIME)
		1108
		1109	const_iv (O_CLOEXEC)
		1110	const_iv (O_NOCTTY)
		1111	const_iv (O_NOFOLLOW)
		1112	const_iv (O_NONBLOCK)
		1113	const_iv (O_EXEC)
		1114	const_iv (O_SEARCH)
		1115	const_iv (O_DIRECTORY)
		1116	const_iv (O_DSYNC)
		1117	const_iv (O_RSYNC)
		1118	const_iv (O_SYNC)
		1119	const_iv (O_PATH)
		1120	const_iv (O_TMPFILE)
		1121	const_iv (O_TTY_INIT)
		1122
		1123	const_iv (S_IFIFO)
		1124	const_iv (S_IFCHR)
		1125	const_iv (S_IFBLK)
		1126	const_iv (S_IFLNK)
		1127	const_iv (S_IFREG)
		1128	const_iv (S_IFDIR)
		1129	const_iv (S_IFWHT)
		1130	const_iv (S_IFSOCK)
		1131	const_iv (S_IFMT)
		1132
		1133	const_iv (ST_RDONLY)
		1134	const_iv (ST_NOSUID)
		1135	const_iv (ST_NODEV)
		1136	const_iv (ST_NOEXEC)
		1137	const_iv (ST_SYNCHRONOUS)
		1138	const_iv (ST_MANDLOCK)
		1139	const_iv (ST_WRITE)
		1140	const_iv (ST_APPEND)
		1141	const_iv (ST_IMMUTABLE)
		1142	const_iv (ST_NOATIME)
		1143	const_iv (ST_NODIRATIME)
		1144	const_iv (ST_RELATIME)
		1145
		1146	const_iv (PROT_NONE)
		1147	const_iv (PROT_EXEC)
		1148	const_iv (PROT_READ)
		1149	const_iv (PROT_WRITE)
		1150
		1151	const_iv (MAP_PRIVATE)
		1152	const_iv (MAP_SHARED)
		1153	const_iv (MAP_FIXED)
		1154	const_iv (MAP_ANONYMOUS)
		1155
		1156	/* linuxish */
		1157	const_iv (MAP_LOCKED)
		1158	const_iv (MAP_NORESERVE)
		1159	const_iv (MAP_POPULATE)
		1160	const_iv (MAP_NONBLOCK)
		1161	const_iv (MAP_GROWSDOWN)
		1162	const_iv (MAP_32BIT)
		1163	const_iv (MAP_HUGETLB)
		1164	const_iv (MAP_STACK)
		1165
		1166	const_iv (MREMAP_MAYMOVE)
		1167	const_iv (MREMAP_FIXED)
		1168
		1169	const_iv (F_DUPFD_CLOEXEC)
		1170
		1171	const_iv (MSG_CMSG_CLOEXEC)
		1172	const_iv (SOCK_CLOEXEC)
		1173
		1174	const_iv (F_OFD_GETLK)
		1175	const_iv (F_OFD_SETLK)
		1176	const_iv (F_OFD_GETLKW)
		1177
		1178	const_iv (FIFREEZE)
		1179	const_iv (FITHAW)
		1180	const_iv (FITRIM)
		1181	const_iv (FICLONE)
		1182	const_iv (FICLONERANGE)
		1183	const_iv (FIDEDUPERANGE)
		1184
		1185	const_iv (FS_IOC_GETFLAGS)
		1186	const_iv (FS_IOC_SETFLAGS)
		1187	const_iv (FS_IOC_GETVERSION)
		1188	const_iv (FS_IOC_SETVERSION)
		1189	const_iv (FS_IOC_FIEMAP)
		1190	const_iv (FS_IOC_FSGETXATTR)
		1191	const_iv (FS_IOC_FSSETXATTR)
		1192	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1193	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1195
		1196	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1197
		1198	const_iv (FS_SECRM_FL)
		1199	const_iv (FS_UNRM_FL)
		1200	const_iv (FS_COMPR_FL)
		1201	const_iv (FS_SYNC_FL)
		1202	const_iv (FS_IMMUTABLE_FL)
		1203	const_iv (FS_APPEND_FL)
		1204	const_iv (FS_NODUMP_FL)
		1205	const_iv (FS_NOATIME_FL)
		1206	const_iv (FS_DIRTY_FL)
		1207	const_iv (FS_COMPRBLK_FL)
		1208	const_iv (FS_NOCOMP_FL)
		1209	const_iv (FS_ENCRYPT_FL)
		1210	const_iv (FS_BTREE_FL)
		1211	const_iv (FS_INDEX_FL)
		1212	const_iv (FS_JOURNAL_DATA_FL)
		1213	const_iv (FS_NOTAIL_FL)
		1214	const_iv (FS_DIRSYNC_FL)
		1215	const_iv (FS_TOPDIR_FL)
		1216	const_iv (FS_FL_USER_MODIFIABLE)
		1217
		1218	const_iv (FS_XFLAG_REALTIME)
		1219	const_iv (FS_XFLAG_PREALLOC)
		1220	const_iv (FS_XFLAG_IMMUTABLE)
		1221	const_iv (FS_XFLAG_APPEND)
		1222	const_iv (FS_XFLAG_SYNC)
		1223	const_iv (FS_XFLAG_NOATIME)
		1224	const_iv (FS_XFLAG_NODUMP)
		1225	const_iv (FS_XFLAG_RTINHERIT)
		1226	const_iv (FS_XFLAG_PROJINHERIT)
		1227	const_iv (FS_XFLAG_NOSYMLINKS)
		1228	const_iv (FS_XFLAG_EXTSIZE)
		1229	const_iv (FS_XFLAG_EXTSZINHERIT)
		1230	const_iv (FS_XFLAG_NODEFRAG)
		1231	const_iv (FS_XFLAG_FILESTREAM)
		1232	const_iv (FS_XFLAG_DAX)
		1233	const_iv (FS_XFLAG_HASATTR)
		1234
		1235	const_iv (FIEMAP_FLAG_SYNC)
		1236	const_iv (FIEMAP_FLAG_XATTR)
		1237	const_iv (FIEMAP_FLAGS_COMPAT)
		1238	const_iv (FIEMAP_EXTENT_LAST)
		1239	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1240	const_iv (FIEMAP_EXTENT_DELALLOC)
		1241	const_iv (FIEMAP_EXTENT_ENCODED)
		1242	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1243	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1244	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1245	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1246	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1247	const_iv (FIEMAP_EXTENT_MERGED)
		1248	const_iv (FIEMAP_EXTENT_SHARED)
		1249
		1250	const_iv (SPLICE_F_MOVE)
		1251	const_iv (SPLICE_F_NONBLOCK)
		1252	const_iv (SPLICE_F_MORE)
		1253	const_iv (SPLICE_F_GIFT)
		1254
		1255	const_iv (EFD_CLOEXEC)
		1256	const_iv (EFD_NONBLOCK)
		1257	const_iv (EFD_SEMAPHORE)
		1258
		1259	const_iv (CLOCK_REALTIME)
		1260	const_iv (CLOCK_MONOTONIC)
		1261	const_iv (CLOCK_BOOTTIME)
		1262	const_iv (CLOCK_REALTIME_ALARM)
		1263	const_iv (CLOCK_BOOTTIME_ALARM)
		1264
		1265	const_iv (TFD_NONBLOCK)
		1266	const_iv (TFD_CLOEXEC)
		1267
		1268	const_iv (TFD_TIMER_ABSTIME)
		1269	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1270
		1271	/* these are libeio constants, and are independent of gendef0 */
		1272	const_eio (SEEK_SET)
		1273	const_eio (SEEK_CUR)
		1274	const_eio (SEEK_END)
		1275
		1276	const_eio (MCL_FUTURE)
		1277	const_eio (MCL_CURRENT)
		1278
		1279	const_eio (MS_ASYNC)
		1280	const_eio (MS_INVALIDATE)
		1281	const_eio (MS_SYNC)
		1282
		1283	const_eio (MT_MODIFY)
		1284
		1285	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1286	const_eio (SYNC_FILE_RANGE_WRITE)
		1287	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1288
		1289	const_eio (FALLOC_FL_KEEP_SIZE)
		1290	const_eio (FALLOC_FL_PUNCH_HOLE)
		1291	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1292	const_eio (FALLOC_FL_ZERO_RANGE)
		1293	const_eio (FALLOC_FL_INSERT_RANGE)
		1294	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1295
		1296	const_eio (RENAME_NOREPLACE)
		1297	const_eio (RENAME_EXCHANGE)
		1298	const_eio (RENAME_WHITEOUT)
		1299
		1300	const_eio (READDIR_DENTS)
		1301	const_eio (READDIR_DIRS_FIRST)
		1302	const_eio (READDIR_STAT_ORDER)
		1303	const_eio (READDIR_FOUND_UNKNOWN)
		1304
		1305	const_eio (DT_UNKNOWN)
		1306	const_eio (DT_FIFO)
		1307	const_eio (DT_CHR)
		1308	const_eio (DT_DIR)
		1309	const_eio (DT_BLK)
		1310	const_eio (DT_REG)
		1311	const_eio (DT_LNK)
		1312	const_eio (DT_SOCK)
		1313	const_eio (DT_WHT)
		1314	};
		1315
456	stash = gv_stashpv ("IO::AIO", 1);	1316	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1317	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1318	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1319	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
457		1320
458	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1321	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
459	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1322	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
460	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1323
461	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1324	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
462	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1325
		1326	/* allocate dummy pipe fd for aio_close */
		1327	{
		1328	int pipefd [2];
		1329
		1330	if (
463	#ifdef _WIN32	1331	#ifdef _WIN32
464	X_MUTEX_CHECK (wrklock);	1332	_pipe (pipefd, 1, _O_BINARY) < 0
465	X_MUTEX_CHECK (reslock);
466	X_MUTEX_CHECK (reqlock);
467	X_MUTEX_CHECK (reqwait);
468	X_MUTEX_CHECK (preadwritelock);
469	X_MUTEX_CHECK (readdirlock);
470
471	X_COND_CHECK (reqwait);
472	#else	1333	#else
473	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1334	pipe (pipefd) < 0
		1335	\|\| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
474	#endif	1336	#endif
		1337	\|\| close (pipefd [1]) < 0
		1338	)
		1339	croak ("IO::AIO: unable to create dummy pipe for aio_close");
475		1340
476	create_respipe ();	1341	close_fd = pipefd [0];
		1342	}
477		1343
478	if (eio_init (want_poll, done_poll) < 0)	1344	reinit ();
479	croak ("IO::AIO: unable to initialise eio library");
480
481	/* atfork child called in fifo order, so before eio's handler */
482	X_THREAD_ATFORK (0, 0, atfork_child);
483	}	1345	}
484		1346
485	void	1347	void
		1348	reinit ()
		1349	PROTOTYPE:
		1350
		1351	void
486	max_poll_reqs (int nreqs)	1352	max_poll_reqs (unsigned int nreqs)
487	PROTOTYPE: $	1353	PROTOTYPE: $
488	CODE:	1354	CODE:
489	eio_set_max_poll_reqs (nreqs);	1355	eio_set_max_poll_reqs (nreqs);
490		1356
491	void	1357	void
…		…
493	PROTOTYPE: $	1359	PROTOTYPE: $
494	CODE:	1360	CODE:
495	eio_set_max_poll_time (nseconds);	1361	eio_set_max_poll_time (nseconds);
496		1362
497	void	1363	void
498	min_parallel (int nthreads)	1364	min_parallel (unsigned int nthreads)
499	PROTOTYPE: $	1365	PROTOTYPE: $
500	CODE:	1366	CODE:
501	eio_set_min_parallel (nthreads);	1367	eio_set_min_parallel (nthreads);
502		1368
503	void	1369	void
504	max_parallel (int nthreads)	1370	max_parallel (unsigned int nthreads)
505	PROTOTYPE: $	1371	PROTOTYPE: $
506	CODE:	1372	CODE:
507	eio_set_max_parallel (nthreads);	1373	eio_set_max_parallel (nthreads);
508		1374
509	void	1375	void
510	max_idle (int nthreads)	1376	max_idle (unsigned int nthreads)
511	PROTOTYPE: $	1377	PROTOTYPE: $
512	CODE:	1378	CODE:
513	eio_set_max_idle (nthreads);	1379	eio_set_max_idle (nthreads);
514		1380
515	void	1381	void
		1382	idle_timeout (unsigned int seconds)
		1383	PROTOTYPE: $
		1384	CODE:
		1385	eio_set_idle_timeout (seconds);
		1386
		1387	void
516	max_outstanding (int maxreqs)	1388	max_outstanding (unsigned int maxreqs)
517	PROTOTYPE: $	1389	PROTOTYPE: $
518	CODE:	1390	CODE:
519	max_outstanding = maxreqs;	1391	max_outstanding = maxreqs;
520		1392
521	void	1393	void
522	aio_open (SV8 pathname, int flags, int mode, SV callback=&PL_sv_undef)	1394	aio_wd (SV8 pathname, SV callback = &PL_sv_undef)
523	PROTOTYPE: $$$;$
524	PPCODE:	1395	PPCODE:
525	{	1396	{
526	dREQ;	1397	dREQ;
527		1398
		1399	req->type = EIO_WD_OPEN;
		1400	req_set_path1 (req, pathname);
		1401
		1402	REQ_SEND;
		1403	}
		1404
		1405	void
		1406	aio_open (SV8 pathname, int flags, int mode, SV callback = &PL_sv_undef)
		1407	PPCODE:
		1408	{
		1409	dREQ;
		1410
528	req->type = EIO_OPEN;	1411	req->type = EIO_OPEN;
529	req->sv1 = newSVsv (pathname);	1412	req_set_path1 (req, pathname);
530	req->ptr1 = SvPVbyte_nolen (req->sv1);
531	req->int1 = flags;	1413	req->int1 = flags;
532	req->int2 = mode;	1414	req->int2 = mode;
533		1415
534	REQ_SEND;	1416	REQ_SEND;
535	}	1417	}
536		1418
537	void	1419	void
538	aio_fsync (SV fh, SV callback=&PL_sv_undef)	1420	aio_fsync (SV fh, SV callback = &PL_sv_undef)
539	PROTOTYPE: $;$
540	ALIAS:	1421	ALIAS:
541	aio_fsync = EIO_FSYNC	1422	aio_fsync = EIO_FSYNC
542	aio_fdatasync = EIO_FDATASYNC	1423	aio_fdatasync = EIO_FDATASYNC
		1424	aio_syncfs = EIO_SYNCFS
543	PPCODE:	1425	PPCODE:
544	{	1426	{
		1427	int fd = s_fileno_croak (fh, 0);
545	dREQ;	1428	dREQ;
546		1429
547	req->type = ix;	1430	req->type = ix;
548	req->sv1 = newSVsv (fh);	1431	req->sv1 = newSVsv (fh);
549	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1432	req->int1 = fd;
550		1433
551	REQ_SEND (req);	1434	REQ_SEND;
552	}	1435	}
553		1436
554	void	1437	void
555	aio_close (SV fh, SV callback=&PL_sv_undef)	1438	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback = &PL_sv_undef)
556	PROTOTYPE: $;$
557	PPCODE:	1439	PPCODE:
558	{	1440	{
559	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1441	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1442	dREQ;
561		1443
562	if (close_pipe < 0)	1444	req->type = EIO_SYNC_FILE_RANGE;
563	{	1445	req->sv1 = newSVsv (fh);
564	int pipefd [2];	1446	req->int1 = fd;
		1447	req->offs = offset;
		1448	req->size = nbytes;
		1449	req->int2 = flags;
565		1450
566	if (pipe (pipefd) < 0	1451	REQ_SEND;
567	\|\| close (pipefd [1]) < 0	1452	}
568	\|\| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
569	abort (); /D/
570		1453
571	close_pipe = pipefd [0];	1454	void
572	}	1455	aio_allocate (SV fh, int mode, off_t offset, size_t len, SV callback = &PL_sv_undef)
		1456	PPCODE:
		1457	{
		1458	int fd = s_fileno_croak (fh, 0);
		1459	dREQ;
		1460
		1461	req->type = EIO_FALLOCATE;
		1462	req->sv1 = newSVsv (fh);
		1463	req->int1 = fd;
		1464	req->int2 = mode;
		1465	req->offs = offset;
		1466	req->size = len;
		1467
		1468	REQ_SEND;
		1469	}
		1470
		1471	void
		1472	aio_close (SV fh, SV callback = &PL_sv_undef)
		1473	PPCODE:
		1474	{
		1475	int fd = s_fileno_croak (fh, 0);
		1476	dREQ;
573		1477
574	req->type = EIO_DUP2;	1478	req->type = EIO_DUP2;
575	req->int1 = close_pipe;	1479	req->int1 = close_fd;
576	req->sv2 = newSVsv (fh);	1480	req->sv2 = newSVsv (fh);
577	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1481	req->int2 = fd;
578		1482
579	REQ_SEND (req);	1483	REQ_SEND;
580	}	1484	}
581		1485
582	void	1486	void
		1487	aio_seek (SV fh, SV offset, int whence, SV *callback = &PL_sv_undef)
		1488	PPCODE:
		1489	{
		1490	int fd = s_fileno_croak (fh, 0);
		1491	dREQ;
		1492
		1493	req->type = EIO_SEEK;
		1494	req->sv1 = newSVsv (fh);
		1495	req->int1 = fd;
		1496	req->offs = SvVAL64 (offset);
		1497	req->int2 = whence;
		1498
		1499	REQ_SEND;
		1500	}
		1501
		1502	void
583	aio_read (SV fh, SV offset, SV length, SV8 data, IV dataoffset, SV *callback=&PL_sv_undef)	1503	aio_read (SV fh, SV offset, SV length, SV8 data, IV dataoffset, SV *callback = &PL_sv_undef)
584	ALIAS:	1504	ALIAS:
585	aio_read = EIO_READ	1505	aio_read = EIO_READ
586	aio_write = EIO_WRITE	1506	aio_write = EIO_WRITE
587	PROTOTYPE: $$$$$;$
588	PPCODE:	1507	PPCODE:
589	{	1508	{
590	STRLEN svlen;	1509	STRLEN svlen;
		1510	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
591	char *svptr = SvPVbyte (data, svlen);	1511	char *svptr = SvPVbyte (data, svlen);
592	UV len = SvUV (length);	1512	UV len = SvUV (length);
593
594	SvUPGRADE (data, SVt_PV);
595	SvPOK_on (data);
596		1513
597	if (dataoffset < 0)	1514	if (dataoffset < 0)
598	dataoffset += svlen;	1515	dataoffset += svlen;
599		1516
600	if (dataoffset < 0 \|\| dataoffset > svlen)	1517	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
606	if (!SvOK (length) \|\| len + dataoffset > svlen)	1523	if (!SvOK (length) \|\| len + dataoffset > svlen)
607	len = svlen - dataoffset;	1524	len = svlen - dataoffset;
608	}	1525	}
609	else	1526	else
610	{	1527	{
611	/* read: grow scalar as necessary */	1528	/* read: check type and grow scalar as necessary */
		1529	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
612	svptr = SvGROW (data, len + dataoffset + 1);	1530	svptr = sv_grow (data, len + dataoffset + 1);
		1531	else if (SvCUR (data) < len + dataoffset)
		1532	croak ("length + dataoffset outside of scalar, and cannot grow");
613	}	1533	}
614
615	if (len < 0)
616	croak ("length must not be negative");
617		1534
618	{	1535	{
619	dREQ;	1536	dREQ;
620		1537
621	req->type = ix;	1538	req->type = ix;
622	req->sv1 = newSVsv (fh);	1539	req->sv1 = newSVsv (fh);
623	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1540	req->int1 = fd;
624	: IoOFP (sv_2io (fh)));
625	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1541	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
626	req->size = len;	1542	req->size = len;
627	req->sv2 = SvREFCNT_inc (data);	1543	req->sv2 = SvREFCNT_inc (data);
628	req->ptr2 = (char *)svptr + dataoffset;	1544	req->ptr2 = (char *)svptr + dataoffset;
629	req->stroffset = dataoffset;	1545	req->stroffset = dataoffset;
…		…
637	REQ_SEND;	1553	REQ_SEND;
638	}	1554	}
639	}	1555	}
640		1556
641	void	1557	void
642	aio_readlink (SV8 path, SV callback=&PL_sv_undef)	1558	aio_ioctl (SV fh, unsigned long request, SV8 arg, SV *callback = &PL_sv_undef)
643	PROTOTYPE: $$;$	1559	ALIAS:
		1560	aio_ioctl = EIO_IOCTL
		1561	aio_fcntl = EIO_FCNTL
644	PPCODE:	1562	PPCODE:
645	{	1563	{
646	SV *data;	1564	int fd = s_fileno_croak (fh, 0);
		1565	char *svptr;
		1566
		1567	if (SvPOK (arg) \|\| !SvNIOK (arg))
		1568	{
		1569	STRLEN svlen;
		1570	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1571	#ifdef IOCPARM_LEN
		1572	STRLEN need = IOCPARM_LEN (request);
		1573	#else
		1574	STRLEN need = 256;
		1575	#endif
		1576
		1577	if (svlen < need)
		1578	svptr = SvGROW (arg, need);
		1579	}
		1580	else
		1581	svptr = (char *)SvIV (arg);
		1582
		1583	{
		1584	dREQ;
		1585
		1586	req->type = ix;
		1587	req->sv1 = newSVsv (fh);
		1588	req->int1 = fd;
		1589	req->int2 = (long)request;
		1590	req->sv2 = SvREFCNT_inc (arg);
		1591	req->ptr2 = svptr;
		1592
		1593	REQ_SEND;
		1594	}
		1595	}
		1596
		1597	void
		1598	aio_readlink (SV8 pathname, SV callback = &PL_sv_undef)
		1599	ALIAS:
		1600	aio_readlink = EIO_READLINK
		1601	aio_realpath = EIO_REALPATH
		1602	PPCODE:
		1603	{
647	dREQ;	1604	dREQ;
648		1605
649	data = newSV (NAME_MAX);
650	SvPOK_on (data);
651
652	req->type = EIO_READLINK;	1606	req->type = ix;
653	req->sv1 = newSVsv (path);	1607	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->sv2 = data;
656	req->ptr2 = SvPVbyte_nolen (data);
657		1608
658	REQ_SEND;	1609	REQ_SEND;
659	}	1610	}
660		1611
661	void	1612	void
662	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	1613	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
663	PROTOTYPE: $$$$;$
664	PPCODE:	1614	PPCODE:
665	{	1615	{
		1616	int ifd = s_fileno_croak (in_fh , 0);
		1617	int ofd = s_fileno_croak (out_fh, 1);
666	dREQ;	1618	dREQ;
667		1619
668	req->type = EIO_SENDFILE;	1620	req->type = EIO_SENDFILE;
669	req->sv1 = newSVsv (out_fh);	1621	req->sv1 = newSVsv (out_fh);
670	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1622	req->int1 = ofd;
671	req->sv2 = newSVsv (in_fh);	1623	req->sv2 = newSVsv (in_fh);
672	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1624	req->int2 = ifd;
673	req->offs = SvVAL64 (in_offset);	1625	req->offs = in_offset;
674	req->size = length;	1626	req->size = length;
675		1627
676	REQ_SEND;	1628	REQ_SEND;
677	}	1629	}
678		1630
679	void	1631	void
680	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1632	aio_readahead (SV fh, off_t offset, size_t length, SV callback = &PL_sv_undef)
681	PROTOTYPE: $$$;$
682	PPCODE:	1633	PPCODE:
683	{	1634	{
		1635	int fd = s_fileno_croak (fh, 0);
684	dREQ;	1636	dREQ;
685		1637
686	req->type = EIO_READAHEAD;	1638	req->type = EIO_READAHEAD;
687	req->sv1 = newSVsv (fh);	1639	req->sv1 = newSVsv (fh);
688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1640	req->int1 = fd;
689	req->offs = SvVAL64 (offset);	1641	req->offs = offset;
690	req->size = length;	1642	req->size = length;
691		1643
692	REQ_SEND;	1644	REQ_SEND;
693	}	1645	}
694		1646
695	void	1647	void
696	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1648	aio_stat (SV8 fh_or_path, SV callback = &PL_sv_undef)
697	ALIAS:	1649	ALIAS:
698	aio_stat = EIO_STAT	1650	aio_stat = EIO_STAT
699	aio_lstat = EIO_LSTAT	1651	aio_lstat = EIO_LSTAT
		1652	aio_statvfs = EIO_STATVFS
700	PPCODE:	1653	PPCODE:
701	{	1654	{
702	dREQ;	1655	dREQ;
703		1656
704	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1657	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
705	if (!req->ptr2)
706	{
707	req_destroy (req);
708	croak ("out of memory during aio_stat statdata allocation");
709	}
710
711	req->flags \|= EIO_FLAG_PTR2_FREE;
712	req->sv1 = newSVsv (fh_or_path);
713
714	if (SvPOK (fh_or_path))
715	{
716	req->type = ix;
717	req->ptr1 = SvPVbyte_nolen (req->sv1);
718	}
719	else
720	{
721	req->type = EIO_FSTAT;
722	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
723	}
724		1658
725	REQ_SEND;	1659	REQ_SEND;
726	}	1660	}
727		1661
728	void	1662	void
		1663	st_xtime ()
		1664	ALIAS:
		1665	st_atime = 0x01
		1666	st_mtime = 0x02
		1667	st_ctime = 0x04
		1668	st_btime = 0x08
		1669	st_xtime = 0x0f
		1670	PPCODE:
		1671	EXTEND (SP, 4);
		1672	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1673	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1674	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1675	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1676
		1677	void
		1678	st_xtimensec ()
		1679	ALIAS:
		1680	st_atimensec = 0x01
		1681	st_mtimensec = 0x02
		1682	st_ctimensec = 0x04
		1683	st_btimensec = 0x08
		1684	st_xtimensec = 0x0f
		1685	st_btimesec = 0x10
		1686	st_gen = 0x20
		1687	PPCODE:
		1688	EXTEND (SP, 4);
		1689	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1690	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1691	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1692	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1693	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1694	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1695
		1696	UV
		1697	major (UV dev)
		1698	ALIAS:
		1699	minor = 1
		1700	CODE:
		1701	RETVAL = ix ? minor (dev) : major (dev);
		1702	OUTPUT:
		1703	RETVAL
		1704
		1705	UV
		1706	makedev (UV maj, UV min)
		1707	CODE:
		1708	RETVAL = makedev (maj, min);
		1709	OUTPUT:
		1710	RETVAL
		1711
		1712	void
729	aio_utime (SV8 fh_or_path, SV atime, SV mtime, SV callback=&PL_sv_undef)	1713	aio_utime (SV8 fh_or_path, SV atime, SV mtime, SV callback = &PL_sv_undef)
730	PPCODE:	1714	PPCODE:
731	{	1715	{
732	dREQ;	1716	dREQ;
733		1717
734	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1718	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1719	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736	req->sv1 = newSVsv (fh_or_path);	1720	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
737
738	if (SvPOK (fh_or_path))
739	{
740	req->type = EIO_UTIME;
741	req->ptr1 = SvPVbyte_nolen (req->sv1);
742	}
743	else
744	{
745	req->type = EIO_FUTIME;
746	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747	}
748		1721
749	REQ_SEND;	1722	REQ_SEND;
750	}	1723	}
751		1724
752	void	1725	void
753	aio_truncate (SV8 fh_or_path, SV offset, SV *callback=&PL_sv_undef)	1726	aio_truncate (SV8 fh_or_path, SV offset, SV *callback = &PL_sv_undef)
754	PPCODE:	1727	PPCODE:
755	{	1728	{
756	dREQ;	1729	dREQ;
757		1730
758	req->sv1 = newSVsv (fh_or_path);
759	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1731	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760		1732	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
761	if (SvPOK (fh_or_path))
762	{
763	req->type = EIO_TRUNCATE;
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765	}
766	else
767	{
768	req->type = EIO_FTRUNCATE;
769	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770	}
771		1733
772	REQ_SEND;	1734	REQ_SEND;
773	}	1735	}
774		1736
775	void	1737	void
776	aio_chmod (SV8 fh_or_path, int mode, SV callback=&PL_sv_undef)	1738	aio_chmod (SV8 fh_or_path, int mode, SV callback = &PL_sv_undef)
777	ALIAS:
778	aio_chmod = EIO_CHMOD
779	aio_fchmod = EIO_FCHMOD
780	aio_mkdir = EIO_MKDIR
781	PPCODE:	1739	PPCODE:
782	{	1740	{
783	dREQ;	1741	dREQ;
784		1742
785	req->type = ix;
786	req->int2 = mode;	1743	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1744	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (ix == EIO_FCHMOD)
790	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791	else
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793		1745
794	REQ_SEND;	1746	REQ_SEND;
795	}	1747	}
796		1748
797	void	1749	void
798	aio_chown (SV8 fh_or_path, SV uid, SV gid, SV callback=&PL_sv_undef)	1750	aio_chown (SV8 fh_or_path, SV uid, SV gid, SV callback = &PL_sv_undef)
799	PPCODE:	1751	PPCODE:
800	{	1752	{
801	dREQ;	1753	dREQ;
802		1754
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1755	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1756	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1757	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806
807	if (SvPOK (fh_or_path))
808	{
809	req->type = EIO_CHOWN;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);
811	}
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1758
818	REQ_SEND;	1759	REQ_SEND;
819	}	1760	}
820		1761
821	void	1762	void
		1763	aio_readdirx (SV8 pathname, IV flags, SV callback = &PL_sv_undef)
		1764	PPCODE:
		1765	{
		1766	dREQ;
		1767
		1768	req->type = EIO_READDIR;
		1769	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1770
		1771	if (flags & EIO_READDIR_DENTS)
		1772	req->int1 \|= EIO_READDIR_CUSTOM2;
		1773
		1774	req_set_path1 (req, pathname);
		1775
		1776	REQ_SEND;
		1777	}
		1778
		1779	void
		1780	aio_mkdir (SV8 pathname, int mode, SV callback = &PL_sv_undef)
		1781	PPCODE:
		1782	{
		1783	dREQ;
		1784
		1785	req->type = EIO_MKDIR;
		1786	req->int2 = mode;
		1787	req_set_path1 (req, pathname);
		1788
		1789	REQ_SEND;
		1790	}
		1791
		1792	void
822	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1793	aio_unlink (SV8 pathname, SV callback = &PL_sv_undef)
823	ALIAS:	1794	ALIAS:
824	aio_unlink = EIO_UNLINK	1795	aio_unlink = EIO_UNLINK
825	aio_rmdir = EIO_RMDIR	1796	aio_rmdir = EIO_RMDIR
826	aio_readdir = EIO_READDIR	1797	aio_readdir = EIO_READDIR
827	PPCODE:	1798	PPCODE:
828	{	1799	{
829	dREQ;	1800	dREQ;
830		1801
831	req->type = ix;	1802	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1803	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1804
835	REQ_SEND;	1805	REQ_SEND;
836	}	1806	}
837		1807
838	void	1808	void
839	aio_link (SV8 oldpath, SV8 newpath, SV *callback=&PL_sv_undef)	1809	aio_link (SV8 oldpath, SV8 newpath, SV *callback = &PL_sv_undef)
840	ALIAS:	1810	ALIAS:
841	aio_link = EIO_LINK	1811	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1812	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1813	aio_rename = EIO_RENAME
844	PPCODE:	1814	PPCODE:
845	{	1815	{
		1816	eio_wd wd2 = 0;
846	dREQ;	1817	dREQ;
847		1818
848	req->type = ix;	1819	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1820	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1821	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1822	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1823
854	REQ_SEND;	1824	REQ_SEND;
855	}	1825	}
856		1826
857	void	1827	void
		1828	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	eio_wd wd2 = 0;
		1832	dREQ;
		1833
		1834	req->type = EIO_RENAME;
		1835	req_set_path1 (req, oldpath);
		1836	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1837	req->int2 = flags;
		1838	req->int3 = (long)wd2;
		1839
		1840	REQ_SEND;
		1841	}
		1842
		1843	void
858	aio_mknod (SV8 pathname, int mode, UV dev, SV callback=&PL_sv_undef)	1844	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
859	PPCODE:	1845	PPCODE:
860	{	1846	{
861	dREQ;	1847	dREQ;
862		1848
863	req->type = EIO_MKNOD;	1849	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1850	req->int2 = (mode_t)mode;
867	req->offs = dev;	1851	req->offs = dev;
		1852	req_set_path1 (req, pathname);
868		1853
869	REQ_SEND;	1854	REQ_SEND;
870	}	1855	}
871		1856
872	void	1857	void
		1858	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1859	ALIAS:
		1860	aio_mtouch = EIO_MTOUCH
		1861	aio_msync = EIO_MSYNC
		1862	PPCODE:
		1863	{
		1864	STRLEN svlen;
		1865	char *svptr = SvPVbyte (data, svlen);
		1866	UV len = SvUV (length);
		1867
		1868	if (flags < 0)
		1869	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1870
		1871	if (offset < 0)
		1872	offset += svlen;
		1873
		1874	if (offset < 0 \|\| offset > svlen)
		1875	croak ("offset outside of scalar");
		1876
		1877	if (!SvOK (length) \|\| len + offset > svlen)
		1878	len = svlen - offset;
		1879
		1880	{
		1881	dREQ;
		1882
		1883	req->type = ix;
		1884	req->sv2 = SvREFCNT_inc (data);
		1885	req->ptr2 = (char *)svptr + offset;
		1886	req->size = len;
		1887	req->int1 = flags;
		1888
		1889	REQ_SEND;
		1890	}
		1891	}
		1892
		1893	void
		1894	aio_mlock (SV8 data, IV offset = 0, SV length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1895	PPCODE:
		1896	{
		1897	STRLEN svlen;
		1898	char *svptr = SvPVbyte (data, svlen);
		1899	UV len = SvUV (length);
		1900
		1901	if (offset < 0)
		1902	offset += svlen;
		1903
		1904	if (offset < 0 \|\| offset > svlen)
		1905	croak ("offset outside of scalar");
		1906
		1907	if (!SvOK (length) \|\| len + offset > svlen)
		1908	len = svlen - offset;
		1909
		1910	{
		1911	dREQ;
		1912
		1913	req->type = EIO_MLOCK;
		1914	req->sv2 = SvREFCNT_inc (data);
		1915	req->ptr2 = (char *)svptr + offset;
		1916	req->size = len;
		1917
		1918	REQ_SEND;
		1919	}
		1920	}
		1921
		1922	void
		1923	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1924	PPCODE:
		1925	{
		1926	dREQ;
		1927
		1928	req->type = EIO_MLOCKALL;
		1929	req->int1 = flags;
		1930
		1931	REQ_SEND;
		1932	}
		1933
		1934	void
		1935	aio_fiemap (SV fh, off_t start, SV length, U32 flags, SV count, SV callback = &PL_sv_undef)
		1936	PPCODE:
		1937	{
		1938	int fd = s_fileno_croak (fh, 0);
		1939	dREQ;
		1940
		1941	req->type = EIO_CUSTOM;
		1942	req->sv1 = newSVsv (fh);
		1943	req->int1 = fd;
		1944
		1945	req->feed = fiemap;
		1946	#if HAVE_FIEMAP
		1947	/* keep our fingers crossed that the next two types are 64 bit */
		1948	req->offs = start;
		1949	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1950	req->int2 = flags;
		1951	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1952	#endif
		1953
		1954	REQ_SEND;
		1955	}
		1956
		1957	void
		1958	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1959	PPCODE:
		1960	{
		1961	char *svptr = 0;
		1962
		1963	sv_clear_foreign (data);
		1964
		1965	if (length) /* known length, directly read into scalar */
		1966	{
		1967	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1968	svptr = sv_grow (data, length + 1);
		1969	else if (SvCUR (data) < length)
		1970	croak ("length outside of scalar, and cannot grow");
		1971	else
		1972	svptr = SvPVbyte_nolen (data);
		1973	}
		1974
		1975	{
		1976	dREQ;
		1977
		1978	req->type = EIO_SLURP;
		1979	req_set_path1 (req, pathname);
		1980	req->offs = offset;
		1981	req->size = length;
		1982	req->sv2 = SvREFCNT_inc (data);
		1983	req->ptr2 = svptr;
		1984
		1985	if (!SvREADONLY (data))
		1986	{
		1987	SvREADONLY_on (data);
		1988	req->flags \|= FLAG_SV2_RO_OFF;
		1989	}
		1990
		1991	REQ_SEND;
		1992	}
		1993	}
		1994
		1995	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1996	aio_busy (double delay, SV *callback = &PL_sv_undef)
874	PPCODE:	1997	PPCODE:
875	{	1998	{
876	dREQ;	1999	dREQ;
877		2000
878	req->type = EIO_BUSY;	2001	req->type = EIO_BUSY;
…		…
880		2003
881	REQ_SEND;	2004	REQ_SEND;
882	}	2005	}
883		2006
884	void	2007	void
885	aio_group (SV *callback=&PL_sv_undef)	2008	aio_group (SV *callback = &PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	2009	PPCODE:
888	{	2010	{
889	dREQ;	2011	dREQ;
890		2012
891	req->type = EIO_GROUP;	2013	req->type = EIO_GROUP;
892		2014
		2015	PUTBACK;
893	eio_submit (req);	2016	req_submit (req);
		2017	SPAGAIN;
		2018
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	2019	XPUSHs (req_sv (req, aio_grp_stash));
895	}	2020	}
896		2021
897	void	2022	void
898	aio_nop (SV *callback=&PL_sv_undef)	2023	aio_nop (SV *callback = &PL_sv_undef)
899	ALIAS:	2024	ALIAS:
900	aio_nop = EIO_NOP	2025	aio_nop = EIO_NOP
901	aio_sync = EIO_SYNC	2026	aio_sync = EIO_SYNC
902	PPCODE:	2027	PPCODE:
903	{	2028	{
…		…
907		2032
908	REQ_SEND;	2033	REQ_SEND;
909	}	2034	}
910		2035
911	int	2036	int
912	aioreq_pri (int pri = 0)	2037	aioreq_pri (int pri = NO_INIT)
913	PROTOTYPE: ;$
914	CODE:	2038	CODE:
915	RETVAL = next_pri - EIO_PRI_BIAS;	2039	RETVAL = next_pri;
916	if (items > 0)	2040	if (items > 0)
917	{	2041	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	2043	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920	next_pri = pri + EIO_PRI_BIAS;	2044	next_pri = pri;
921	}	2045	}
922	OUTPUT:	2046	OUTPUT:
923	RETVAL	2047	RETVAL
924		2048
925	void	2049	void
926	aioreq_nice (int nice = 0)	2050	aioreq_nice (int nice = 0)
927	CODE:	2051	CODE:
928	nice = next_pri - nice;	2052	nice = next_pri - nice;
929	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	2053	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice + EIO_PRI_BIAS;	2055	next_pri = nice;
932		2056
933	void	2057	void
934	flush ()	2058	flush ()
935	PROTOTYPE:
936	CODE:	2059	CODE:
937	while (eio_nreqs ())	2060	while (eio_nreqs ())
938	{	2061	{
939	poll_wait ();	2062	poll_wait ();
940	poll_cb ();	2063	poll_cb ();
941	}	2064	}
942		2065
943	int	2066	int
944	poll()	2067	poll ()
945	PROTOTYPE:
946	CODE:	2068	CODE:
947	poll_wait ();	2069	poll_wait ();
948	RETVAL = poll_cb ();	2070	RETVAL = poll_cb ();
949	OUTPUT:	2071	OUTPUT:
950	RETVAL	2072	RETVAL
951		2073
952	int	2074	int
953	poll_fileno()	2075	poll_fileno ()
954	PROTOTYPE:
955	CODE:	2076	CODE:
956	RETVAL = respipe [0];	2077	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	2078	OUTPUT:
958	RETVAL	2079	RETVAL
959		2080
960	int	2081	int
961	poll_cb(...)	2082	poll_cb (...)
962	PROTOTYPE:	2083	PROTOTYPE:
963	CODE:	2084	CODE:
964	RETVAL = poll_cb ();	2085	RETVAL = poll_cb ();
965	OUTPUT:	2086	OUTPUT:
966	RETVAL	2087	RETVAL
967		2088
968	void	2089	void
969	poll_wait()	2090	poll_wait ()
970	PROTOTYPE:
971	CODE:	2091	CODE:
972	poll_wait ();	2092	poll_wait ();
973		2093
974	int	2094	int
975	nreqs()	2095	nreqs ()
976	PROTOTYPE:
977	CODE:	2096	CODE:
978	RETVAL = eio_nreqs ();	2097	RETVAL = eio_nreqs ();
979	OUTPUT:	2098	OUTPUT:
980	RETVAL	2099	RETVAL
981		2100
982	int	2101	int
983	nready()	2102	nready ()
984	PROTOTYPE:
985	CODE:	2103	CODE:
986	RETVAL = eio_nready ();	2104	RETVAL = eio_nready ();
987	OUTPUT:	2105	OUTPUT:
988	RETVAL	2106	RETVAL
989		2107
990	int	2108	int
991	npending()	2109	npending ()
992	PROTOTYPE:
993	CODE:	2110	CODE:
994	RETVAL = eio_npending ();	2111	RETVAL = eio_npending ();
995	OUTPUT:	2112	OUTPUT:
996	RETVAL	2113	RETVAL
997		2114
998	int	2115	int
999	nthreads()	2116	nthreads ()
1000	PROTOTYPE:
1001	CODE:	2117	CODE:
1002	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	2118	RETVAL = eio_nthreads ();
1003	RETVAL = started;
1004	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005	OUTPUT:	2119	OUTPUT:
1006	RETVAL	2120	RETVAL
1007		2121
		2122	int
		2123	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2124	CODE:
		2125	RETVAL = posix_fadvise (fh, offset, length, advice);
		2126	OUTPUT:
		2127	RETVAL
		2128
		2129	IV
		2130	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2131	CODE:
		2132	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2133	OUTPUT:
		2134	RETVAL
		2135
		2136	void
		2137	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
		2138	PPCODE:
		2139	sv_clear_foreign (scalar);
		2140	{
		2141	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2142	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		2143	if (addr == (void *)-1)
		2144	XSRETURN_NO;
		2145
		2146	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2147
		2148	if (!(prot & PROT_WRITE))
		2149	SvREADONLY_on (scalar);
		2150
		2151	XSRETURN_YES;
		2152	}
		2153
		2154	void
		2155	munmap (SV *scalar)
		2156	CODE:
		2157	sv_clear_foreign (scalar);
		2158
		2159	SV *
		2160	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2161	CODE:
		2162	{
		2163	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2164	void *new;
		2165
		2166	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2167	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2168
		2169	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2170
		2171	RETVAL = &PL_sv_no;
		2172
		2173	if (new != (void *)-1)
		2174	{
		2175	RETVAL = new == (void *)mg->mg_ptr
		2176	? newSVpvn ("0 but true", 10)
		2177	: &PL_sv_yes;
		2178
		2179	mg->mg_ptr = (char *)new;
		2180	mg->mg_obj = (SV *)new_length;
		2181
		2182	SvPVX (scalar) = mg->mg_ptr;
		2183	SvCUR_set (scalar, new_length);
		2184	}
		2185	}
		2186	OUTPUT:
		2187	RETVAL
		2188
		2189	int
		2190	madvise (SV scalar, IV offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
		2191	ALIAS:
		2192	mprotect = 1
		2193	CODE:
		2194	{
		2195	STRLEN svlen;
		2196	void *addr = SvPVbyte (scalar, svlen);
		2197	STRLEN len = SvUV (length);
		2198
		2199	if (offset < 0)
		2200	offset += svlen;
		2201
		2202	if (offset < 0 \|\| offset > svlen)
		2203	croak ("offset outside of scalar");
		2204
		2205	if (!SvOK (length) \|\| len + offset > svlen)
		2206	len = svlen - offset;
		2207
		2208	addr = (void *)(((intptr_t)addr) + offset);
		2209	eio_page_align (&addr, &len);
		2210
		2211	switch (ix)
		2212	{
		2213	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2214	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2215	}
		2216	}
		2217	OUTPUT:
		2218	RETVAL
		2219
		2220	int
		2221	munlock (SV scalar, IV offset = 0, SV length = &PL_sv_undef)
		2222	CODE:
		2223	{
		2224	STRLEN svlen;
		2225	void *addr = SvPVbyte (scalar, svlen);
		2226	size_t len = SvUV (length);
		2227
		2228	if (offset < 0)
		2229	offset += svlen;
		2230
		2231	if (offset < 0 \|\| offset > svlen)
		2232	croak ("offset outside of scalar");
		2233
		2234	if (!SvOK (length) \|\| len + offset > svlen)
		2235	len = svlen - offset;
		2236
		2237	addr = (void *)(((intptr_t)addr) + offset);
		2238	eio_page_align (&addr, &len);
		2239	#if _POSIX_MEMLOCK_RANGE
		2240	RETVAL = munlock (addr, len);
		2241	#else
		2242	RETVAL = EIO_ENOSYS ();
		2243	#endif
		2244	}
		2245	OUTPUT:
		2246	RETVAL
		2247
		2248	int
		2249	munlockall ()
		2250	CODE:
		2251	#if _POSIX_MEMLOCK
		2252	munlockall ();
		2253	#else
		2254	RETVAL = EIO_ENOSYS ();
		2255	#endif
		2256	OUTPUT:
		2257	RETVAL
		2258
		2259	int
		2260	splice (aio_rfd rfh, SV off_in, aio_wfd wfh, SV off_out, size_t length, unsigned int flags)
		2261	CODE:
		2262	{
		2263	#if HAVE_LINUX_SPLICE
		2264	loff_t off_in_, off_out_;
		2265	RETVAL = splice (
		2266	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2267	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2268	length, flags
		2269	);
		2270	#else
		2271	RETVAL = EIO_ENOSYS ();
		2272	#endif
		2273	}
		2274	OUTPUT:
		2275	RETVAL
		2276
		2277	int
		2278	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2279	CODE:
		2280	#if HAVE_LINUX_SPLICE
		2281	RETVAL = tee (rfh, wfh, length, flags);
		2282	#else
		2283	RETVAL = EIO_ENOSYS ();
		2284	#endif
		2285	OUTPUT:
		2286	RETVAL
		2287
		2288	int
		2289	pipesize (aio_rfd rfh, int new_size = -1)
		2290	PROTOTYPE: $;$
		2291	CODE:
		2292	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2293	if (new_size >= 0)
		2294	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2295	else
		2296	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2297	#else
		2298	errno = ENOSYS;
		2299	RETVAL = -1;
		2300	#endif
		2301	OUTPUT:
		2302	RETVAL
		2303
		2304	void
		2305	pipe2 (int flags = 0)
		2306	PROTOTYPE: ;$
		2307	PPCODE:
		2308	{
		2309	int fd[2];
		2310	int res;
		2311
		2312	if (flags)
		2313	#if HAVE_PIPE2
		2314	res = pipe2 (fd, flags);
		2315	#else
		2316	res = (errno = ENOSYS, -1);
		2317	#endif
		2318	else
		2319	res = pipe (fd);
		2320
		2321	if (!res)
		2322	{
		2323	EXTEND (SP, 2);
		2324	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2325	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2326	}
		2327	}
		2328
		2329	void
		2330	eventfd (unsigned int initval = 0, int flags = 0)
		2331	PPCODE:
		2332	{
		2333	int fd;
		2334	#if HAVE_EVENTFD
		2335	fd = eventfd (initval, flags);
		2336	#else
		2337	fd = (errno = ENOSYS, -1);
		2338	#endif
		2339
		2340	XPUSHs (newmortalFH (fd, O_RDWR));
		2341	}
		2342
		2343	void
		2344	timerfd_create (int clockid, int flags = 0)
		2345	PPCODE:
		2346	{
		2347	int fd;
		2348	#if HAVE_TIMERFD
		2349	fd = timerfd_create (clockid, flags);
		2350	#else
		2351	fd = (errno = ENOSYS, -1);
		2352	#endif
		2353
		2354	XPUSHs (newmortalFH (fd, O_RDWR));
		2355	}
		2356
		2357	void
		2358	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2359	PPCODE:
		2360	{
		2361	int fd = s_fileno_croak (fh, 0);
		2362	#if HAVE_TIMERFD
		2363	int res;
		2364	struct itimerspec its, ots;
		2365
		2366	ts_set (&its.it_interval, interval);
		2367	ts_set (&its.it_value , value);
		2368	res = timerfd_settime (fd, flags, &its, &ots);
		2369
		2370	if (!res)
		2371	{
		2372	EXTEND (SP, 2);
		2373	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2374	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2375	}
		2376	#else
		2377	errno = ENOSYS;
		2378	#endif
		2379	}
		2380
		2381	void
		2382	timerfd_gettime (SV *fh)
		2383	PPCODE:
		2384	{
		2385	int fd = s_fileno_croak (fh, 0);
		2386	#if HAVE_TIMERFD
		2387	int res;
		2388	struct itimerspec ots;
		2389	res = timerfd_gettime (fd, &ots);
		2390
		2391	if (!res)
		2392	{
		2393	EXTEND (SP, 2);
		2394	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2395	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2396	}
		2397	#else
		2398	errno = ENOSYS;
		2399	#endif
		2400	}
		2401
		2402	UV
		2403	get_fdlimit ()
		2404	CODE:
		2405	#if HAVE_RLIMITS
		2406	struct rlimit rl;
		2407	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2409	#endif
		2410	XSRETURN_UNDEF;
		2411	OUTPUT:
		2412	RETVAL
		2413
		2414	void
		2415	min_fdlimit (UV limit = 0x7fffffffU)
		2416	CODE:
		2417	{
		2418	#if HAVE_RLIMITS
		2419	struct rlimit rl;
		2420	rlim_t orig_rlim_max;
		2421	UV bit;
		2422
		2423	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2424	goto fail;
		2425
		2426	if (rl.rlim_cur == RLIM_INFINITY)
		2427	XSRETURN_YES;
		2428
		2429	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2430
		2431	if (rl.rlim_cur < limit)
		2432	{
		2433	rl.rlim_cur = limit;
		2434
		2435	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2436	rl.rlim_max = rl.rlim_cur;
		2437	}
		2438
		2439	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2440	XSRETURN_YES;
		2441
		2442	if (errno == EPERM)
		2443	{
		2444	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2445	/* our limit overflows a system-wide limit */
		2446	/* try an adaptive algorithm, but do not lower the hardlimit */
		2447	rl.rlim_max = 0;
		2448	for (bit = 0x40000000U; bit; bit >>= 1)
		2449	{
		2450	rl.rlim_max \|= bit;
		2451	rl.rlim_cur = rl.rlim_max;
		2452
		2453	/* nevr decrease the hard limit */
		2454	if (rl.rlim_max < orig_rlim_max)
		2455	break;
		2456
		2457	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2458	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2459	}
		2460
		2461	/* now, raise the soft limit to the max permitted */
		2462	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2463	{
		2464	rl.rlim_cur = rl.rlim_max;
		2465	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2466	errno = EPERM;
		2467	}
		2468	}
		2469	#endif
		2470	fail:
		2471	XSRETURN_UNDEF;
		2472	}
		2473
		2474	void _on_next_submit (SV *cb)
		2475	CODE:
		2476	SvREFCNT_dec (on_next_submit);
		2477	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		2478
1008	PROTOTYPES: DISABLE	2479	PROTOTYPES: DISABLE
		2480
		2481	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2482
		2483	BOOT:
		2484	{
		2485	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2486	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2487	}
		2488
		2489	void
		2490	DESTROY (SV *self)
		2491	CODE:
		2492	{
		2493	aio_wd wd = SvAIO_WD (self);
		2494	#if HAVE_AT
		2495	{
		2496	SV *callback = &PL_sv_undef;
		2497	dREQ; /* clobbers next_pri :/ */
		2498	next_pri = req->pri; /* restore next_pri */
		2499	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2500	req->type = EIO_WD_CLOSE;
		2501	req->wd = wd;
		2502	REQ_SEND;
		2503	}
		2504	#else
		2505	eio_wd_close_sync (wd);
		2506	#endif
		2507	}
1009		2508
1010	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2509	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011		2510
1012	void	2511	void
1013	cancel (aio_req_ornot req)	2512	cancel (aio_req_ornot req)
1014	CODE:	2513	CODE:
1015	eio_cancel (req);	2514	eio_cancel (req);
1016		2515
1017	void	2516	void
1018	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2517	cb (aio_req_ornot req, SV *callback = NO_INIT)
1019	CODE:	2518	PPCODE:
		2519	{
		2520	if (GIMME_V != G_VOID)
		2521	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		2522
		2523	if (items > 1)
		2524	{
		2525	SV *cb_cv = get_cb (callback);
		2526
1020	SvREFCNT_dec (req->callback);	2527	SvREFCNT_dec (req->callback);
1021	req->callback = newSVsv (callback);	2528	req->callback = SvREFCNT_inc (cb_cv);
		2529	}
		2530	}
1022		2531
1023	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	2532	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024		2533
1025	void	2534	void
1026	add (aio_req grp, ...)	2535	add (aio_req grp, ...)
…		…
1058	AV *av;	2567	AV *av;
1059		2568
1060	grp->errorno = errno;	2569	grp->errorno = errno;
1061		2570
1062	av = newAV ();	2571	av = newAV ();
		2572	av_extend (av, items - 1);
1063		2573
1064	for (i = 1; i < items; ++i )	2574	for (i = 1; i < items; ++i )
1065	av_push (av, newSVsv (ST (i)));	2575	av_push (av, newSVsv (ST (i)));
1066		2576
1067	SvREFCNT_dec (grp->sv1);	2577	SvREFCNT_dec (grp->sv1);
…		…
1077	limit (aio_req grp, int limit)	2587	limit (aio_req grp, int limit)
1078	CODE:	2588	CODE:
1079	eio_grp_limit (grp, limit);	2589	eio_grp_limit (grp, limit);
1080		2590
1081	void	2591	void
1082	feed (aio_req grp, SV *callback=&PL_sv_undef)	2592	feed (aio_req grp, SV *callback = &PL_sv_undef)
1083	CODE:	2593	CODE:
1084	{	2594	{
1085	SvREFCNT_dec (grp->sv2);	2595	SvREFCNT_dec (grp->sv2);
1086	grp->sv2 = newSVsv (callback);	2596	grp->sv2 = newSVsv (callback);
		2597	grp->feed = aio_grp_feed;
1087		2598
1088	if (grp->int2 <= 0)	2599	if (grp->int2 <= 0)
1089	grp->int2 = 2;	2600	grp->int2 = 2;
1090		2601
1091	eio_grp_limit (grp, grp->int2);	2602	eio_grp_limit (grp, grp->int2);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs. Revision 1.267 by root, Sat Aug 25 19:25:32 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.267 by root, Sat Aug 25 19:25:32 2018 UTC