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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.128 by root, Tue Sep 30 14:07:59 2008 UTC vs.
Revision 1.233 by root, Thu Jun 25 13:34:28 2015 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
18	/* perl namespace pollution */	37	/* perl namespace pollution */
19	#undef VERSION	38	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		39
70	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	42	#undef readdir
73	#undef opendir	43	#undef opendir
74	#undef closedir	44	#undef closedir
75		45
		46	#ifdef _WIN32
		47
		48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
		52	#undef open
		53	#undef read
		54	#undef write
		55	#undef send
		56	#undef recv
		57	#undef stat
		58	#undef lstat
		59	#undef fstat
		60	#undef truncate
		61	#undef ftruncate
		62	#undef open
		63	#undef link
		64	#undef close
		65	#undef unlink
		66	#undef mkdir
		67	#undef rmdir
		68	#undef rename
		69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
		79
		80	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	81	#define EIO_STRUCT_STATI64
77		82
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	83	#else
82	# define SvVAL64 SvNV	84
		85	#include <sys/time.h>
		86	#include <sys/select.h>
		87	#include <unistd.h>
		88	#include <utime.h>
		89	#include <signal.h>
		90
		91	#define EIO_STRUCT_STAT Stat_t
		92
83	#endif	93	#endif
84		94
85	/*****************************************************************************/	95	/*****************************************************************************/
86		96
87	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	103	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	104	#define expect_true(expr) expect ((expr) != 0, 1)
95		105
96	/*****************************************************************************/	106	/*****************************************************************************/
97		107
98	static HV *stash;
99	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
		109	typedef int aio_rfd; /* read file desriptor */
		110	typedef int aio_wfd; /* write file descriptor */
100		111
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		113
104	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
105	SV *callback; \	115	SV *callback; \
106	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
107	STRLEN stroffset; \	118	STRLEN stroffset; \
108	SV *self;	119	SV *self;
109		120
110	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
111		122
		123	#include "libeio/config.h"
112	#include "libeio/eio.h"	124	#include "libeio/eio.h"
113		125
114	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
119	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
		130
		131	#include "libeio/eio.c"
		132
		133	#if !HAVE_POSIX_FADVISE
		134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#if !HAVE_POSIX_MADVISE
		138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		139	#endif
		140
		141	#ifndef MAP_ANONYMOUS
		142	# ifdef MAP_ANON
		143	# define MAP_ANONYMOUS MAP_ANON
		144	# else
		145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		146	# endif
		147	#endif
		148
		149	/* defines all sorts of constants to 0 unless they are already defined */
		150	#include "def0.h"
		151
		152	#ifndef makedev
		153	# define makedev(maj,min) (((maj) << 8) | (min))
		154	#endif
		155	#ifndef major
		156	# define major(dev) ((dev) >> 8)
		157	#endif
		158	#ifndef minor
		159	# define minor(dev) ((dev) & 0xff)
		160	#endif
		161
		162	#if PAGESIZE <= 0
		163	# define PAGESIZE sysconf (_SC_PAGESIZE)
		164	#endif
		165
		166	/*****************************************************************************/
		167
		168	static void
		169	fiemap (eio_req *req)
		170	{
		171	req->result = -1;
		172
		173	#if HAVE_FIEMAP
		174	/* assume some c99 */
		175	struct fiemap *fiemap = 0;
		176	size_t end_offset;
		177	int count = req->int3;
		178
		179	req->flags |= EIO_FLAG_PTR1_FREE;
		180
		181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		182	/* increase in 3.5kb steps */
		183	if (count < 0)
		184	count = 8;
		185
		186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		187	errno = ENOMEM;
		188	if (!fiemap)
		189	return;
		190
		191	req->ptr1 = fiemap;
		192
		193	fiemap->fm_start = req->offs;
		194	fiemap->fm_length = req->size;
		195	fiemap->fm_flags = req->int2;
		196	fiemap->fm_extent_count = count;
		197
		198	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		199	return;
		200
		201	if (req->int3 >= 0 /* not autosizing */
		202	|| !fiemap->fm_mapped_extents /* no more extents */
		203	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		204	goto done;
		205
		206	/* else we have to loop -
		207	* it would be tempting (actually I tried that first) to just query the
		208	* number of extents needed, but linux often feels like not returning all
		209	* extents, without telling us it left any out. this complicates
		210	* this quite a bit.
		211	*/
		212
		213	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		214
		215	for (;;)
		216	{
		217	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		218	char scratch[3072];
		219	struct fiemap *incmap = (struct fiemap *)scratch;
		220
		221	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		222	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		223	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		224	incmap->fm_flags = fiemap->fm_flags;
		225	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		226
		227	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		228	return;
		229
		230	if (!incmap->fm_mapped_extents)
		231	goto done;
		232
		233	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		234	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		235	errno = ENOMEM;
		236	if (!fiemap)
		237	return;
		238
		239	req->ptr1 = fiemap;
		240
		241	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		242	{
		243	struct fiemap_extent *e = incmap->fm_extents + count;
		244
		245	if (e->fe_logical + e->fe_length >= end_offset)
		246	goto done;
		247
		248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		249
		250	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		251	goto done;
		252
		253	}
		254	}
		255
		256	done:
		257	req->result = 0;
		258
		259	#else
		260	errno = ENOSYS;
		261	#endif
		262	}
		263
		264	/*****************************************************************************/
120		265
121	enum {	266	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
123	};	268	};
124		269
125	#include "libeio/eio.c"
126
127	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
128	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
129		273
130	static SV *on_next_submit;	274	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	276	static int max_outstanding;
133		277
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	278	static s_epipe respipe;
135		279
136	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
138		282
139	static void want_poll (void)	283	static void
		284	want_poll (void)
140	{	285	{
141	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	287	s_epipe_signal (&respipe);
143	}	288	}
144		289
145	static void done_poll (void)	290	static void
		291	done_poll (void)
146	{	292	{
147	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
148	char buf [4];	294	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	295	}
152		296
153	/* must be called at most once */	297	/* must be called at most once */
154	static SV *req_sv (aio_req req, const char *klass)	298	static SV *
		299	req_sv (aio_req req, HV *stash)
155	{	300	{
156	if (!req->self)	301	if (!req->self)
157	{	302	{
158	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	305	}
161		306
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	308	}
164		309
165	static aio_req SvAIO_REQ (SV *sv)	310	static SV *
		311	newSVaio_wd (aio_wd wd)
		312	{
		313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		314	}
		315
		316	static aio_req
		317	SvAIO_REQ (SV *sv)
166	{	318	{
167	MAGIC *mg;	319	MAGIC *mg;
168		320
169	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		324	&& SvSTASH (SvRV (sv)) != aio_req_stash
		325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	326	croak ("object of class IO::AIO::REQ expected");
171		327
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		329
174	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	331	}
176		332
		333	static aio_wd
		334	SvAIO_WD (SV *sv)
		335	{
		336	if (!SvROK (sv)
		337	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		340
		341	return (aio_wd)(long)SvIVX (SvRV (sv));
		342	}
		343
		344	static SV *
		345	newmortalFH (int fd, int flags)
		346	{
		347	if (fd < 0)
		348	return &PL_sv_undef;
		349
		350	GV *gv = (GV *)sv_newmortal ();
		351	char sym[64];
		352	int symlen;
		353
		354	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		355	gv_init (gv, aio_stash, sym, symlen, 0);
		356
		357	symlen = snprintf (
		358	sym,
		359	sizeof (sym),
		360	"%s&=%d",
		361	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		362	fd
		363	);
		364
		365	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		366	? (SV *)gv : &PL_sv_undef;
		367	}
		368
		369	static void
177	static void aio_grp_feed (aio_req grp)	370	aio_grp_feed (aio_req grp)
178	{	371	{
179	if (grp->sv2 && SvOK (grp->sv2))	372	if (grp->sv2 && SvOK (grp->sv2))
180	{	373	{
181	dSP;	374	dSP;
182		375
183	ENTER;	376	ENTER;
184	SAVETMPS;	377	SAVETMPS;
185	PUSHMARK (SP);	378	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	379	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	380	PUTBACK;
188	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	381	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
189	SPAGAIN;	382	SPAGAIN;
190	FREETMPS;	383	FREETMPS;
191	LEAVE;	384	LEAVE;
192	}	385	}
193	}	386	}
194		387
		388	static void
195	static void req_submit (eio_req *req)	389	req_submit (eio_req *req)
196	{	390	{
197	eio_submit (req);	391	eio_submit (req);
198		392
199	if (expect_false (on_next_submit))	393	if (expect_false (on_next_submit))
200	{	394	{
…		…
207	PUTBACK;	401	PUTBACK;
208	call_sv (cb, G_DISCARD | G_EVAL);	402	call_sv (cb, G_DISCARD | G_EVAL);
209	}	403	}
210	}	404	}
211		405
		406	static int
212	static int req_invoke (eio_req *req)	407	req_invoke (eio_req *req)
213	{	408	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	409	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	410	SvREADONLY_off (req->sv2);
218		411
219	if (!EIO_CANCELLED (req) && req->callback)	412	if (!EIO_CANCELLED (req) && req->callback)
220	{	413	{
		414	dSP;
		415	static SV *sv_result_cache; /* caches the result integer SV */
		416	SV *sv_result;
		417
221	ENTER;	418	ENTER;
222	SAVETMPS;	419	SAVETMPS;
223	PUSHMARK (SP);	420	PUSHMARK (SP);
224	EXTEND (SP, 1);	421	EXTEND (SP, 1);
225		422
		423	/* do not recreate the result IV from scratch each time */
		424	if (expect_true (sv_result_cache))
		425	{
		426	sv_result = sv_result_cache; sv_result_cache = 0;
		427	SvIV_set (sv_result, req->result);
		428	SvIOK_only (sv_result);
		429	}
		430	else
		431	{
		432	sv_result = newSViv (req->result);
		433	SvREADONLY_on (sv_result);
		434	}
		435
226	switch (req->type)	436	switch (req->type)
227	{	437	{
		438	case EIO_WD_OPEN:
		439	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		440	break;
		441
228	case EIO_READDIR:	442	case EIO_READDIR:
229	{	443	{
230	SV *rv = &PL_sv_undef;	444	SV *rv = &PL_sv_undef;
231		445
232	if (req->result >= 0)	446	if (req->result >= 0)
233	{	447	{
234	int i;	448	int i;
235	char *buf = req->ptr2;	449	char *names = (char *)req->ptr2;
		450	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
236	AV *av = newAV ();	451	AV *av = newAV ();
237		452
238	av_extend (av, req->result - 1);	453	av_extend (av, req->result - 1);
239		454
240	for (i = 0; i < req->result; ++i)	455	for (i = 0; i < req->result; ++i)
241	{	456	{
242	SV *sv = newSVpv (buf, 0);	457	if (req->int1 & EIO_READDIR_DENTS)
		458	{
		459	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		460
		461	if (req->int1 & EIO_READDIR_CUSTOM2)
		462	{
		463	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		464	AV *avent = newAV ();
		465
		466	av_extend (avent, 2);
		467
		468	if (!sv_type [ent->type])
		469	{
		470	sv_type [ent->type] = newSViv (ent->type);
		471	SvREADONLY_on (sv_type [ent->type]);
		472	}
		473
		474	av_store (avent, 0, namesv);
		475	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		476	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		477
		478	av_store (av, i, newRV_noinc ((SV *)avent));
		479	}
		480	else
244	av_store (av, i, sv);	481	av_store (av, i, namesv);
		482
		483	++ent;
		484	}
		485	else
		486	{
		487	SV *name = newSVpv (names, 0);
		488	av_store (av, i, name);
245	buf += SvCUR (sv) + 1;	489	names += SvCUR (name) + 1;
		490	}
246	}	491	}
247		492
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	493	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	494	}
250		495
251	PUSHs (rv);	496	PUSHs (rv);
		497
		498	if (req->int1 & EIO_READDIR_CUSTOM1)
		499	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
252	}	500	}
253	break;	501	break;
254		502
255	case EIO_OPEN:	503	case EIO_OPEN:
		504	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		505	break;
		506
		507	case EIO_STATVFS:
		508	case EIO_FSTATVFS:
256	{	509	{
257	/* convert fd to fh */
258	SV *fh = &PL_sv_undef;	510	SV *rv = &PL_sv_undef;
259		511
		512	#ifndef _WIN32
260	if (req->result >= 0)	513	if (req->result >= 0)
261	{	514	{
		515	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
262	GV *gv = (GV *)sv_newmortal ();	516	HV *hv = newHV ();
263	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	517	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
264	char sym [64];	518	* chooses to make it a struct.
265	int symlen;
266		519	*/
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	520	unsigned long fsid = 0;
268	gv_init (gv, stash, sym, symlen, 0);	521	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
269		522
270	symlen = snprintf (	523	rv = sv_2mortal (newRV_noinc ((SV *)hv));
271	sym,
272	sizeof (sym),
273	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result
276	);
277		524
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	525	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
279	fh = (SV *)gv;	526	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		527	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		528	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		529	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		530	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		531	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		532	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		533	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		534	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		535	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
280	}	536	}
		537	#endif
281		538
282	PUSHs (fh);	539	PUSHs (rv);
283	}	540	}
		541
284	break;	542	break;
285		543
286	case EIO_GROUP:	544	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	545	req->int1 = 2; /* mark group as finished */
288		546
…		…
300	case EIO_NOP:	558	case EIO_NOP:
301	case EIO_BUSY:	559	case EIO_BUSY:
302	break;	560	break;
303		561
304	case EIO_READLINK:	562	case EIO_READLINK:
		563	case EIO_REALPATH:
305	if (req->result > 0)	564	if (req->result > 0)
306	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	565	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
307	break;	566	break;
308		567
309	case EIO_STAT:	568	case EIO_STAT:
310	case EIO_LSTAT:	569	case EIO_LSTAT:
311	case EIO_FSTAT:	570	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	571	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		572
313	PL_laststatval = req->result;	573	if (!(PL_laststatval = req->result))
		574	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
314	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	575	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	576
		577	PUSHs (sv_result);
316	break;	578	break;
317		579
		580	case EIO_SEEK:
		581	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		582	break;
		583
318	case EIO_READ:	584	case EIO_READ:
		585	{
319	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	586	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
320	*SvEND (req->sv2) = 0;	587	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	588	SvPOK_only (req->sv2);
		589	SvSETMAGIC (req->sv2);
		590	PUSHs (sv_result);
		591	}
322	break;	592	break;
323		593
324	case EIO_DUP2:	594	case EIO_CUSTOM:
		595	if (req->feed == fiemap)
		596	{
		597	#if HAVE_FIEMAP
		598	if (!req->result)
		599	{
		600	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		601
		602	if (fiemap->fm_extent_count)
		603	{
		604	AV *av = newAV ();
		605	int i;
		606
		607	while (fiemap->fm_mapped_extents)
		608	{
		609	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		610	AV *ext_av = newAV ();
		611
		612	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		613	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		614	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		615	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		616
		617	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		618	}
		619
		620	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		621	}
		622	else
		623	{
		624	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		625	PUSHs (sv_result);
		626	}
		627	}
		628	#endif
		629	}
		630	else
		631	PUSHs (sv_result);
		632	break;
		633
		634	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
325	if (req->result > 0)	635	if (req->result > 0)
326	req->result = 0;	636	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	637	/* FALLTHROUGH */
328		638
329	default:	639	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	640	PUSHs (sv_result);
331	break;	641	break;
332	}	642	}
333		643
334	errno = req->errorno;	644	errno = req->errorno;
335		645
336	PUTBACK;	646	PUTBACK;
337	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	647	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
338	SPAGAIN;	648	SPAGAIN;
339		649
		650	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		651	SvREFCNT_dec (sv_result);
		652	else
		653	sv_result_cache = sv_result;
		654
340	FREETMPS;	655	FREETMPS;
341	LEAVE;	656	LEAVE;
342		657
343	PUTBACK;	658	PUTBACK;
344	}	659	}
345		660
346	return !!SvTRUE (ERRSV);	661	return !!SvTRUE (ERRSV);
347	}	662	}
348		663
		664	static void
349	static void req_destroy (aio_req req)	665	req_destroy (aio_req req)
350	{	666	{
351	if (req->self)	667	if (req->self)
352	{	668	{
353	sv_unmagic (req->self, PERL_MAGIC_ext);	669	sv_unmagic (req->self, PERL_MAGIC_ext);
354	SvREFCNT_dec (req->self);	670	SvREFCNT_dec (req->self);
355	}	671	}
356		672
357	SvREFCNT_dec (req->sv1);	673	SvREFCNT_dec (req->sv1);
358	SvREFCNT_dec (req->sv2);	674	SvREFCNT_dec (req->sv2);
		675	SvREFCNT_dec (req->sv3);
		676	SvREFCNT_dec (req->sv4);
359	SvREFCNT_dec (req->callback);	677	SvREFCNT_dec (req->callback);
360		678
361	Safefree (req);	679	free (req);
362	}	680	}
363		681
		682	static void
364	static void req_cancel_subs (aio_req grp)	683	req_cancel_subs (aio_req grp)
365	{	684	{
366	aio_req sub;
367
368	if (grp->type != EIO_GROUP)	685	if (grp->type != EIO_GROUP)
369	return;	686	return;
370		687
371	SvREFCNT_dec (grp->sv2);	688	SvREFCNT_dec (grp->sv2);
372	grp->sv2 = 0;	689	grp->sv2 = 0;
373		690
374	eio_grp_cancel (grp);	691	eio_grp_cancel (grp);
375	}	692	}
376		693
377	#ifdef USE_SOCKETS_AS_HANDLES	694	static void ecb_cold
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))	695	create_respipe (void)
379	#else	696	{
380	# define TO_SOCKET(x) (x)	697	if (s_epipe_renew (&respipe))
381	#endif	698	croak ("IO::AIO: unable to initialize result pipe");
		699	}
382		700
383	static void	701	static void
384	create_respipe (void)	702	poll_wait (void)
385	{	703	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))
395	#endif
396	croak ("unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}
420
421	static void poll_wait (void)
422	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	704	while (eio_nreqs ())
426	{	705	{
427	int size;	706	int size;
428		707
429	X_LOCK (reslock);	708	X_LOCK (reslock);
…		…
433	if (size)	712	if (size)
434	return;	713	return;
435		714
436	etp_maybe_start_thread ();	715	etp_maybe_start_thread ();
437		716
438	FD_ZERO (&rfd);	717	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	718	}
443	}	719	}
444		720
445	static int poll_cb (void)	721	static int
		722	poll_cb (void)
446	{	723	{
447	for (;;)	724	for (;;)
448	{	725	{
449	int res = eio_poll ();	726	int res = eio_poll ();
450		727
…		…
456		733
457	poll_wait ();	734	poll_wait ();
458	}	735	}
459	}	736	}
460		737
461	static void atfork_child (void)	738	static void ecb_cold
		739	reinit (void)
462	{	740	{
463	create_respipe ();	741	create_respipe ();
		742
		743	if (eio_init (want_poll, done_poll) < 0)
		744	croak ("IO::AIO: unable to initialise eio library");
464	}	745	}
		746
		747	/*****************************************************************************/
		748
		749	#if !_POSIX_MAPPED_FILES
		750	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		751	# define munmap(addr,length) EIO_ENOSYS ()
		752	#endif
		753
		754	#if !_POSIX_MEMORY_PROTECTION
		755	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		756	# define PROT_NONE 0
		757	# define PROT_WRITE 0
		758	# define MAP_PRIVATE 0
		759	# define MAP_SHARED 0
		760	# define MAP_FIXED 0
		761	#endif
		762
		763	#define MMAP_MAGIC PERL_MAGIC_ext
		764
		765	static int ecb_cold
		766	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		767	{
		768	int old_errno = errno;
		769	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		770	errno = old_errno;
		771
		772	mg->mg_obj = 0; /* just in case */
		773
		774	SvREADONLY_off (sv);
		775
		776	if (SvPVX (sv) != mg->mg_ptr)
		777	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		778
		779	SvCUR_set (sv, 0);
		780	SvPVX (sv) = 0;
		781	SvOK_off (sv);
		782
		783	return 0;
		784	}
		785
		786	static MGVTBL mmap_vtbl = {
		787	0, 0, 0, 0, mmap_free
		788	};
		789
		790	/*****************************************************************************/
465		791
466	static SV *	792	static SV *
467	get_cb (SV *cb_sv)	793	get_cb (SV *cb_sv)
468	{	794	{
469	HV *st;	795	SvGETMAGIC (cb_sv);
470	GV *gvp;	796	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		797	}
		798
		799	static aio_req ecb_noinline
		800	dreq (SV *callback)
		801	{
471	CV *cv;	802	SV *cb_cv;
		803	aio_req req;
		804	int req_pri = next_pri;
		805	next_pri = EIO_PRI_DEFAULT;
472		806
473	if (!SvOK (cb_sv))	807	cb_cv = get_cb (callback);
		808
		809	req = calloc (sizeof (*req), 1);
		810	if (!req)
		811	croak ("out of memory during eio_req allocation");
		812
		813	req->callback = SvREFCNT_inc (cb_cv);
		814	req->pri = req_pri;
		815
474	return 0;	816	return req;
475
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);
477
478	if (!cv)
479	croak ("IO::AIO watcher callback must be undef or a CODE reference");
480
481	return (SV *)cv;
482	}	817	}
483		818
484	#define dREQ \	819	#define dREQ \
485	SV *cb_cv; \	820	aio_req req = dreq (callback); \
486	aio_req req; \
487	int req_pri = next_pri; \
488	next_pri = EIO_PRI_DEFAULT; \
489	\
490	cb_cv = get_cb (callback); \
491	\
492	Newz (0, req, 1, eio_req); \
493	if (!req) \
494	croak ("out of memory during eio_req allocation"); \
495	\
496	req->callback = SvREFCNT_inc (cb_cv); \
497	req->pri = req_pri
498		821
499	#define REQ_SEND \	822	#define REQ_SEND \
500	PUTBACK; \	823	PUTBACK; \
501	req_submit (req); \	824	req_submit (req); \
502	SPAGAIN; \	825	SPAGAIN; \
503	\	826	\
504	if (GIMME_V != G_VOID) \	827	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	828	XPUSHs (req_sv (req, aio_req_stash));
506		829
		830	ecb_inline void
		831	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		832	{
		833	if (expect_false (SvROK (path)))
		834	{
		835	SV *rv = SvRV (path);
		836	SV *wdob;
		837
		838	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		839	{
		840	path = AvARRAY (rv)[1];
		841	wdob = AvARRAY (rv)[0];
		842
		843	if (SvOK (wdob))
		844	{
		845	*wd = SvAIO_WD (wdob);
		846	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		847	}
		848	else
		849	*wd = EIO_INVALID_WD;
		850	}
		851	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		852	{
		853	*wd = (aio_wd)(long)SvIVX (rv);
		854	*wdsv = SvREFCNT_inc_NN (rv);
		855	*ptr = ".";
		856	return; /* path set to "." */
		857	}
		858	else
		859	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		860	}
		861
		862	*pathsv = newSVsv (path);
		863	*ptr = SvPVbyte_nolen (*pathsv);
		864	}
		865
		866	static void ecb_noinline
		867	req_set_path1 (aio_req req, SV *path)
		868	{
		869	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		870	}
		871
		872	static void ecb_noinline
		873	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		874	{
		875	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		876
		877	switch (SvTYPE (rv))
		878	{
		879	case SVt_PVIO:
		880	case SVt_PVLV:
		881	case SVt_PVGV:
		882	req->type = type_fh;
		883	req->sv1 = newSVsv (fh_or_path);
		884	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		885	break;
		886
		887	default:
		888	req->type = type_path;
		889	req_set_path1 (req, fh_or_path);
		890	break;
		891	}
		892	}
		893
		894	XS(boot_IO__AIO) ecb_cold;
		895
507	MODULE = IO::AIO PACKAGE = IO::AIO	896	MODULE = IO::AIO PACKAGE = IO::AIO
508		897
509	PROTOTYPES: ENABLE	898	PROTOTYPES: ENABLE
510		899
511	BOOT:	900	BOOT:
512	{	901	{
		902	static const struct {
		903	const char *name;
		904	IV iv;
		905	} *civ, const_iv[] = {
		906	# define const_niv(name, value) { # name, (IV) value },
		907	# define const_iv(name) { # name, (IV) name },
		908	# define const_eio(name) { # name, (IV) EIO_ ## name },
		909
		910	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		911
		912	const_iv (ENOSYS)
		913	const_iv (EXDEV)
		914	const_iv (EBADR)
		915
		916	const_iv (O_RDONLY)
		917	const_iv (O_WRONLY)
		918	const_iv (O_RDWR)
		919	const_iv (O_CREAT)
		920	const_iv (O_TRUNC)
		921	const_iv (O_EXCL)
		922	const_iv (O_APPEND)
		923
		924	const_iv (O_ASYNC)
		925	const_iv (O_DIRECT)
		926	const_iv (O_NOATIME)
		927
		928	const_iv (O_CLOEXEC)
		929	const_iv (O_NOCTTY)
		930	const_iv (O_NOFOLLOW)
		931	const_iv (O_NONBLOCK)
		932	const_iv (O_EXEC)
		933	const_iv (O_SEARCH)
		934	const_iv (O_DIRECTORY)
		935	const_iv (O_DSYNC)
		936	const_iv (O_RSYNC)
		937	const_iv (O_SYNC)
		938	const_iv (O_TTY_INIT)
		939
		940	const_iv (S_IFIFO)
		941	const_iv (S_IFCHR)
		942	const_iv (S_IFBLK)
		943	const_iv (S_IFLNK)
		944	const_iv (S_IFREG)
		945	const_iv (S_IFDIR)
		946	const_iv (S_IFWHT)
		947	const_iv (S_IFSOCK)
		948	const_iv (S_IFMT)
		949
		950	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		951	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		952	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		953	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		954	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		955	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		956
		957	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		958	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		959	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		960	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		961	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		962
		963	const_iv (ST_RDONLY)
		964	const_iv (ST_NOSUID)
		965	const_iv (ST_NODEV)
		966	const_iv (ST_NOEXEC)
		967	const_iv (ST_SYNCHRONOUS)
		968	const_iv (ST_MANDLOCK)
		969	const_iv (ST_WRITE)
		970	const_iv (ST_APPEND)
		971	const_iv (ST_IMMUTABLE)
		972	const_iv (ST_NOATIME)
		973	const_iv (ST_NODIRATIME)
		974	const_iv (ST_RELATIME)
		975
		976	const_iv (PROT_NONE)
		977	const_iv (PROT_EXEC)
		978	const_iv (PROT_READ)
		979	const_iv (PROT_WRITE)
		980
		981	/*const_iv (MAP_FIXED)*/
		982	const_iv (MAP_PRIVATE)
		983	const_iv (MAP_SHARED)
		984	const_iv (MAP_ANONYMOUS)
		985
		986	/* linuxish */
		987	const_iv (MAP_HUGETLB)
		988	const_iv (MAP_LOCKED)
		989	const_iv (MAP_NORESERVE)
		990	const_iv (MAP_POPULATE)
		991	const_iv (MAP_NONBLOCK)
		992
		993	const_iv (FIEMAP_FLAG_SYNC)
		994	const_iv (FIEMAP_FLAG_XATTR)
		995	const_iv (FIEMAP_FLAGS_COMPAT)
		996	const_iv (FIEMAP_EXTENT_LAST)
		997	const_iv (FIEMAP_EXTENT_UNKNOWN)
		998	const_iv (FIEMAP_EXTENT_DELALLOC)
		999	const_iv (FIEMAP_EXTENT_ENCODED)
		1000	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1001	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1002	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1003	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1004	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1005	const_iv (FIEMAP_EXTENT_MERGED)
		1006	const_iv (FIEMAP_EXTENT_SHARED)
		1007
		1008	const_iv (SPLICE_F_MOVE)
		1009	const_iv (SPLICE_F_NONBLOCK)
		1010	const_iv (SPLICE_F_MORE)
		1011	const_iv (SPLICE_F_GIFT)
		1012
		1013	const_iv (SEEK_DATA)
		1014	const_iv (SEEK_HOLE)
		1015
		1016	/* libeio constants */
		1017	const_eio (SEEK_SET)
		1018	const_eio (SEEK_CUR)
		1019	const_eio (SEEK_END)
		1020
		1021	const_eio (MCL_FUTURE)
		1022	const_eio (MCL_CURRENT)
		1023
		1024	const_eio (MS_ASYNC)
		1025	const_eio (MS_INVALIDATE)
		1026	const_eio (MS_SYNC)
		1027
		1028	const_eio (MT_MODIFY)
		1029
		1030	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1031	const_eio (SYNC_FILE_RANGE_WRITE)
		1032	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1033
		1034	const_eio (FALLOC_FL_KEEP_SIZE)
		1035	const_eio (FALLOC_FL_PUNCH_HOLE)
		1036	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1037	const_eio (FALLOC_FL_ZERO_RANGE)
		1038
		1039	const_eio (READDIR_DENTS)
		1040	const_eio (READDIR_DIRS_FIRST)
		1041	const_eio (READDIR_STAT_ORDER)
		1042	const_eio (READDIR_FOUND_UNKNOWN)
		1043
		1044	const_eio (DT_UNKNOWN)
		1045	const_eio (DT_FIFO)
		1046	const_eio (DT_CHR)
		1047	const_eio (DT_DIR)
		1048	const_eio (DT_BLK)
		1049	const_eio (DT_REG)
		1050	const_eio (DT_LNK)
		1051	const_eio (DT_SOCK)
		1052	const_eio (DT_WHT)
		1053	};
		1054
513	stash = gv_stashpv ("IO::AIO", 1);	1055	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1056	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1057	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1058	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
514		1059
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1060	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1061	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
519	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
520	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	#endif
523		1062
524	create_respipe ();	1063	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
525		1064
526	if (eio_init (want_poll, done_poll) < 0)	1065	reinit ();
527	croak ("IO::AIO: unable to initialise eio library");
528
529	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	1066	}
532		1067
533	void	1068	void
		1069	reinit ()
		1070	PROTOTYPE:
		1071
		1072	void
534	max_poll_reqs (int nreqs)	1073	max_poll_reqs (unsigned int nreqs)
535	PROTOTYPE: $	1074	PROTOTYPE: $
536	CODE:	1075	CODE:
537	eio_set_max_poll_reqs (nreqs);	1076	eio_set_max_poll_reqs (nreqs);
538		1077
539	void	1078	void
…		…
541	PROTOTYPE: $	1080	PROTOTYPE: $
542	CODE:	1081	CODE:
543	eio_set_max_poll_time (nseconds);	1082	eio_set_max_poll_time (nseconds);
544		1083
545	void	1084	void
546	min_parallel (int nthreads)	1085	min_parallel (unsigned int nthreads)
547	PROTOTYPE: $	1086	PROTOTYPE: $
548	CODE:	1087	CODE:
549	eio_set_min_parallel (nthreads);	1088	eio_set_min_parallel (nthreads);
550		1089
551	void	1090	void
552	max_parallel (int nthreads)	1091	max_parallel (unsigned int nthreads)
553	PROTOTYPE: $	1092	PROTOTYPE: $
554	CODE:	1093	CODE:
555	eio_set_max_parallel (nthreads);	1094	eio_set_max_parallel (nthreads);
556		1095
557	void	1096	void
558	max_idle (int nthreads)	1097	max_idle (unsigned int nthreads)
559	PROTOTYPE: $	1098	PROTOTYPE: $
560	CODE:	1099	CODE:
561	eio_set_max_idle (nthreads);	1100	eio_set_max_idle (nthreads);
562		1101
563	void	1102	void
		1103	idle_timeout (unsigned int seconds)
		1104	PROTOTYPE: $
		1105	CODE:
		1106	eio_set_idle_timeout (seconds);
		1107
		1108	void
564	max_outstanding (int maxreqs)	1109	max_outstanding (unsigned int maxreqs)
565	PROTOTYPE: $	1110	PROTOTYPE: $
566	CODE:	1111	CODE:
567	max_outstanding = maxreqs;	1112	max_outstanding = maxreqs;
568		1113
569	void	1114	void
570	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1115	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
571	PROTOTYPE: $$$;$
572	PPCODE:	1116	PPCODE:
573	{	1117	{
574	dREQ;	1118	dREQ;
575		1119
		1120	req->type = EIO_WD_OPEN;
		1121	req_set_path1 (req, pathname);
		1122
		1123	REQ_SEND;
		1124	}
		1125
		1126	void
		1127	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1128	PPCODE:
		1129	{
		1130	dREQ;
		1131
576	req->type = EIO_OPEN;	1132	req->type = EIO_OPEN;
577	req->sv1 = newSVsv (pathname);	1133	req_set_path1 (req, pathname);
578	req->ptr1 = SvPVbyte_nolen (req->sv1);
579	req->int1 = flags;	1134	req->int1 = flags;
580	req->int2 = mode;	1135	req->int2 = mode;
581		1136
582	REQ_SEND;	1137	REQ_SEND;
583	}	1138	}
584		1139
585	void	1140	void
586	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1141	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
587	PROTOTYPE: $;$
588	ALIAS:	1142	ALIAS:
589	aio_fsync = EIO_FSYNC	1143	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	1144	aio_fdatasync = EIO_FDATASYNC
		1145	aio_syncfs = EIO_SYNCFS
591	PPCODE:	1146	PPCODE:
592	{	1147	{
		1148	int fd = s_fileno_croak (fh, 0);
593	dREQ;	1149	dREQ;
594		1150
595	req->type = ix;	1151	req->type = ix;
596	req->sv1 = newSVsv (fh);	1152	req->sv1 = newSVsv (fh);
597	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1153	req->int1 = fd;
598		1154
599	REQ_SEND (req);	1155	REQ_SEND;
600	}	1156	}
601		1157
602	void	1158	void
603	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1159	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
604	PROTOTYPE: $;$
605	PPCODE:	1160	PPCODE:
606	{	1161	{
607	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1162	int fd = s_fileno_croak (fh, 0);
608	dREQ;	1163	dREQ;
609		1164
610	if (close_pipe < 0)	1165	req->type = EIO_SYNC_FILE_RANGE;
		1166	req->sv1 = newSVsv (fh);
		1167	req->int1 = fd;
		1168	req->offs = offset;
		1169	req->size = nbytes;
		1170	req->int2 = flags;
		1171
		1172	REQ_SEND;
		1173	}
		1174
		1175	void
		1176	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1177	PPCODE:
		1178	{
		1179	int fd = s_fileno_croak (fh, 0);
		1180	dREQ;
		1181
		1182	req->type = EIO_FALLOCATE;
		1183	req->sv1 = newSVsv (fh);
		1184	req->int1 = fd;
		1185	req->int2 = mode;
		1186	req->offs = offset;
		1187	req->size = len;
		1188
		1189	REQ_SEND;
		1190	}
		1191
		1192	void
		1193	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1194	PPCODE:
		1195	{
		1196	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1197	int fd = s_fileno_croak (fh, 0);
		1198	dREQ;
		1199
		1200	if (expect_false (close_fd < 0))
611	{	1201	{
612	int pipefd [2];	1202	int pipefd [2];
613		1203
		1204	if (
		1205	#ifdef _WIN32
		1206	_pipe (pipefd, 1, _O_BINARY) < 0
		1207	#else
614	if (pipe (pipefd) < 0	1208	pipe (pipefd) < 0
615	|| close (pipefd [1]) < 0
616	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1209	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1210	#endif
		1211	|| close (pipefd [1]) < 0
		1212	)
617	abort (); /*D*/	1213	abort (); /*D*/
618		1214
619	close_pipe = pipefd [0];	1215	close_fd = pipefd [0];
620	}	1216	}
621		1217
622	req->type = EIO_DUP2;	1218	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	1219	req->int1 = close_fd;
624	req->sv2 = newSVsv (fh);	1220	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1221	req->int2 = fd;
626		1222
627	REQ_SEND (req);	1223	REQ_SEND;
628	}	1224	}
629		1225
630	void	1226	void
		1227	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1228	PPCODE:
		1229	{
		1230	int fd = s_fileno_croak (fh, 0);
		1231	dREQ;
		1232
		1233	req->type = EIO_SEEK;
		1234	req->sv1 = newSVsv (fh);
		1235	req->int1 = fd;
		1236	req->offs = SvVAL64 (offset);
		1237	req->int2 = whence;
		1238
		1239	REQ_SEND;
		1240	}
		1241
		1242	void
631	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1243	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
632	ALIAS:	1244	ALIAS:
633	aio_read = EIO_READ	1245	aio_read = EIO_READ
634	aio_write = EIO_WRITE	1246	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$
636	PPCODE:	1247	PPCODE:
637	{	1248	{
638	STRLEN svlen;	1249	STRLEN svlen;
		1250	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	1251	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	1252	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		1253
645	if (dataoffset < 0)	1254	if (dataoffset < 0)
646	dataoffset += svlen;	1255	dataoffset += svlen;
647		1256
648	if (dataoffset < 0 || dataoffset > svlen)	1257	if (dataoffset < 0 || dataoffset > svlen)
…		…
654	if (!SvOK (length) || len + dataoffset > svlen)	1263	if (!SvOK (length) || len + dataoffset > svlen)
655	len = svlen - dataoffset;	1264	len = svlen - dataoffset;
656	}	1265	}
657	else	1266	else
658	{	1267	{
659	/* read: grow scalar as necessary */	1268	/* read: check type and grow scalar as necessary */
		1269	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
660	svptr = SvGROW (data, len + dataoffset + 1);	1270	svptr = sv_grow (data, len + dataoffset + 1);
		1271	else if (SvCUR (data) < len + dataoffset)
		1272	croak ("length + dataoffset outside of scalar, and cannot grow");
661	}	1273	}
662
663	if (len < 0)
664	croak ("length must not be negative");
665		1274
666	{	1275	{
667	dREQ;	1276	dREQ;
668		1277
669	req->type = ix;	1278	req->type = ix;
670	req->sv1 = newSVsv (fh);	1279	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1280	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1281	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	1282	req->size = len;
675	req->sv2 = SvREFCNT_inc (data);	1283	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	1284	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	1285	req->stroffset = dataoffset;
…		…
685	REQ_SEND;	1293	REQ_SEND;
686	}	1294	}
687	}	1295	}
688		1296
689	void	1297	void
690	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1298	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
691	PROTOTYPE: $$;$	1299	ALIAS:
		1300	aio_readlink = EIO_READLINK
		1301	aio_realpath = EIO_REALPATH
692	PPCODE:	1302	PPCODE:
693	{	1303	{
694	SV *data;
695	dREQ;	1304	dREQ;
696		1305
697	req->type = EIO_READLINK;	1306	req->type = ix;
698	req->sv1 = newSVsv (path);	1307	req_set_path1 (req, pathname);
699	req->ptr1 = SvPVbyte_nolen (req->sv1);
700		1308
701	REQ_SEND;	1309	REQ_SEND;
702	}	1310	}
703		1311
704	void	1312	void
705	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1313	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
706	PROTOTYPE: $$$$;$
707	PPCODE:	1314	PPCODE:
708	{	1315	{
		1316	int ifd = s_fileno_croak (in_fh , 0);
		1317	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1318	dREQ;
710		1319
711	req->type = EIO_SENDFILE;	1320	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1321	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1322	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1323	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1324	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1325	req->offs = in_offset;
717	req->size = length;	1326	req->size = length;
718		1327
719	REQ_SEND;	1328	REQ_SEND;
720	}	1329	}
721		1330
722	void	1331	void
723	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1332	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
724	PROTOTYPE: $$$;$
725	PPCODE:	1333	PPCODE:
726	{	1334	{
		1335	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1336	dREQ;
728		1337
729	req->type = EIO_READAHEAD;	1338	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1339	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1340	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1341	req->offs = offset;
733	req->size = length;	1342	req->size = length;
734		1343
735	REQ_SEND;	1344	REQ_SEND;
736	}	1345	}
737		1346
738	void	1347	void
739	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1348	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
740	ALIAS:	1349	ALIAS:
741	aio_stat = EIO_STAT	1350	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1351	aio_lstat = EIO_LSTAT
		1352	aio_statvfs = EIO_STATVFS
743	PPCODE:	1353	PPCODE:
744	{	1354	{
745	dREQ;	1355	dREQ;
746		1356
747	req->sv1 = newSVsv (fh_or_path);	1357	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
748
749	if (SvPOK (req->sv1))
750	{
751	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}
754	else
755	{
756	req->type = EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}
759		1358
760	REQ_SEND;	1359	REQ_SEND;
761	}	1360	}
762		1361
		1362	UV
		1363	major (UV dev)
		1364	ALIAS:
		1365	minor = 1
		1366	CODE:
		1367	RETVAL = ix ? major (dev) : minor (dev);
		1368	OUTPUT:
		1369	RETVAL
		1370
		1371	UV
		1372	makedev (UV maj, UV min)
		1373	CODE:
		1374	RETVAL = makedev (maj, min);
		1375	OUTPUT:
		1376	RETVAL
		1377
763	void	1378	void
764	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1379	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
765	PPCODE:	1380	PPCODE:
766	{	1381	{
767	dREQ;	1382	dREQ;
768		1383
769	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1384	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
770	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1385	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
771	req->sv1 = newSVsv (fh_or_path);	1386	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
772
773	if (SvPOK (req->sv1))
774	{
775	req->type = EIO_UTIME;
776	req->ptr1 = SvPVbyte_nolen (req->sv1);
777	}
778	else
779	{
780	req->type = EIO_FUTIME;
781	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
782	}
783		1387
784	REQ_SEND;	1388	REQ_SEND;
785	}	1389	}
786		1390
787	void	1391	void
788	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1392	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
789	PPCODE:	1393	PPCODE:
790	{	1394	{
791	dREQ;	1395	dREQ;
792		1396
793	req->sv1 = newSVsv (fh_or_path);
794	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1397	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
795		1398	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
796	if (SvPOK (req->sv1))
797	{
798	req->type = EIO_TRUNCATE;
799	req->ptr1 = SvPVbyte_nolen (req->sv1);
800	}
801	else
802	{
803	req->type = EIO_FTRUNCATE;
804	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
805	}
806		1399
807	REQ_SEND;	1400	REQ_SEND;
808	}	1401	}
809		1402
810	void	1403	void
811	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1404	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
812	ALIAS:
813	aio_chmod = EIO_CHMOD
814	aio_mkdir = EIO_MKDIR
815	PPCODE:	1405	PPCODE:
816	{	1406	{
817	dREQ;	1407	dREQ;
818		1408
819	req->int2 = mode;	1409	req->int2 = mode;
820	req->sv1 = newSVsv (fh_or_path);	1410	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
821
822	if (SvPOK (req->sv1))
823	{
824	req->type = ix;
825	req->ptr1 = SvPVbyte_nolen (req->sv1);
826	}
827	else
828	{
829	req->type = EIO_FCHMOD;
830	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
831	}
832		1411
833	REQ_SEND;	1412	REQ_SEND;
834	}	1413	}
835		1414
836	void	1415	void
837	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1416	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
838	PPCODE:	1417	PPCODE:
839	{	1418	{
840	dREQ;	1419	dREQ;
841		1420
842	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1421	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
843	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1422	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
844	req->sv1 = newSVsv (fh_or_path);	1423	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
845
846	if (SvPOK (req->sv1))
847	{
848	req->type = EIO_CHOWN;
849	req->ptr1 = SvPVbyte_nolen (req->sv1);
850	}
851	else
852	{
853	req->type = EIO_FCHOWN;
854	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855	}
856		1424
857	REQ_SEND;	1425	REQ_SEND;
858	}	1426	}
859		1427
860	void	1428	void
		1429	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1430	PPCODE:
		1431	{
		1432	dREQ;
		1433
		1434	req->type = EIO_READDIR;
		1435	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1436
		1437	if (flags & EIO_READDIR_DENTS)
		1438	req->int1 |= EIO_READDIR_CUSTOM2;
		1439
		1440	req_set_path1 (req, pathname);
		1441
		1442	REQ_SEND;
		1443	}
		1444
		1445	void
		1446	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1447	PPCODE:
		1448	{
		1449	dREQ;
		1450
		1451	req->type = EIO_MKDIR;
		1452	req->int2 = mode;
		1453	req_set_path1 (req, pathname);
		1454
		1455	REQ_SEND;
		1456	}
		1457
		1458	void
861	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1459	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
862	ALIAS:	1460	ALIAS:
863	aio_unlink = EIO_UNLINK	1461	aio_unlink = EIO_UNLINK
864	aio_rmdir = EIO_RMDIR	1462	aio_rmdir = EIO_RMDIR
865	aio_readdir = EIO_READDIR	1463	aio_readdir = EIO_READDIR
866	PPCODE:	1464	PPCODE:
867	{	1465	{
868	dREQ;	1466	dREQ;
869		1467
870	req->type = ix;	1468	req->type = ix;
871	req->sv1 = newSVsv (pathname);	1469	req_set_path1 (req, pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873		1470
874	REQ_SEND;	1471	REQ_SEND;
875	}	1472	}
876		1473
877	void	1474	void
878	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1475	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
879	ALIAS:	1476	ALIAS:
880	aio_link = EIO_LINK	1477	aio_link = EIO_LINK
881	aio_symlink = EIO_SYMLINK	1478	aio_symlink = EIO_SYMLINK
882	aio_rename = EIO_RENAME	1479	aio_rename = EIO_RENAME
883	PPCODE:	1480	PPCODE:
884	{	1481	{
		1482	eio_wd wd2 = 0;
885	dREQ;	1483	dREQ;
886		1484
887	req->type = ix;	1485	req->type = ix;
888	req->sv1 = newSVsv (oldpath);	1486	req_set_path1 (req, oldpath);
889	req->ptr1 = SvPVbyte_nolen (req->sv1);	1487	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
890	req->sv2 = newSVsv (newpath);	1488	req->int3 = (long)wd2;
891	req->ptr2 = SvPVbyte_nolen (req->sv2);
892		1489
893	REQ_SEND;	1490	REQ_SEND;
894	}	1491	}
895		1492
896	void	1493	void
897	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1494	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
898	PPCODE:	1495	PPCODE:
899	{	1496	{
900	dREQ;	1497	dREQ;
901		1498
902	req->type = EIO_MKNOD;	1499	req->type = EIO_MKNOD;
903	req->sv1 = newSVsv (pathname);
904	req->ptr1 = SvPVbyte_nolen (req->sv1);
905	req->int2 = (mode_t)mode;	1500	req->int2 = (mode_t)mode;
906	req->offs = dev;	1501	req->offs = dev;
		1502	req_set_path1 (req, pathname);
907		1503
908	REQ_SEND;	1504	REQ_SEND;
909	}	1505	}
910		1506
911	void	1507	void
		1508	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1509	ALIAS:
		1510	aio_mtouch = EIO_MTOUCH
		1511	aio_msync = EIO_MSYNC
		1512	PPCODE:
		1513	{
		1514	STRLEN svlen;
		1515	char *svptr = SvPVbyte (data, svlen);
		1516	UV len = SvUV (length);
		1517
		1518	if (offset < 0)
		1519	offset += svlen;
		1520
		1521	if (offset < 0 || offset > svlen)
		1522	croak ("offset outside of scalar");
		1523
		1524	if (!SvOK (length) || len + offset > svlen)
		1525	len = svlen - offset;
		1526
		1527	{
		1528	dREQ;
		1529
		1530	req->type = ix;
		1531	req->sv2 = SvREFCNT_inc (data);
		1532	req->ptr2 = (char *)svptr + offset;
		1533	req->size = len;
		1534	req->int1 = flags;
		1535
		1536	REQ_SEND;
		1537	}
		1538	}
		1539
		1540	void
		1541	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	STRLEN svlen;
		1545	char *svptr = SvPVbyte (data, svlen);
		1546	UV len = SvUV (length);
		1547
		1548	if (offset < 0)
		1549	offset += svlen;
		1550
		1551	if (offset < 0 || offset > svlen)
		1552	croak ("offset outside of scalar");
		1553
		1554	if (!SvOK (length) || len + offset > svlen)
		1555	len = svlen - offset;
		1556
		1557	{
		1558	dREQ;
		1559
		1560	req->type = EIO_MLOCK;
		1561	req->sv2 = SvREFCNT_inc (data);
		1562	req->ptr2 = (char *)svptr + offset;
		1563	req->size = len;
		1564
		1565	REQ_SEND;
		1566	}
		1567	}
		1568
		1569	void
		1570	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1571	PPCODE:
		1572	{
		1573	dREQ;
		1574
		1575	req->type = EIO_MLOCKALL;
		1576	req->int1 = flags;
		1577
		1578	REQ_SEND;
		1579	}
		1580
		1581	void
		1582	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1583	PPCODE:
		1584	{
		1585	int fd = s_fileno_croak (fh, 0);
		1586	dREQ;
		1587
		1588	req->type = EIO_CUSTOM;
		1589	req->sv1 = newSVsv (fh);
		1590	req->int1 = fd;
		1591
		1592	req->feed = fiemap;
		1593	#if HAVE_FIEMAP
		1594	/* keep our fingers crossed that the next two types are 64 bit */
		1595	req->offs = start;
		1596	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1597	req->int2 = flags;
		1598	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1599	#endif
		1600
		1601	REQ_SEND;
		1602	}
		1603
		1604	void
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1605	aio_busy (double delay, SV *callback = &PL_sv_undef)
913	PPCODE:	1606	PPCODE:
914	{	1607	{
915	dREQ;	1608	dREQ;
916		1609
917	req->type = EIO_BUSY;	1610	req->type = EIO_BUSY;
…		…
919		1612
920	REQ_SEND;	1613	REQ_SEND;
921	}	1614	}
922		1615
923	void	1616	void
924	aio_group (SV *callback=&PL_sv_undef)	1617	aio_group (SV *callback = &PL_sv_undef)
925	PROTOTYPE: ;$
926	PPCODE:	1618	PPCODE:
927	{	1619	{
928	dREQ;	1620	dREQ;
929		1621
930	req->type = EIO_GROUP;	1622	req->type = EIO_GROUP;
931		1623
		1624	PUTBACK;
932	req_submit (req);	1625	req_submit (req);
		1626	SPAGAIN;
		1627
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1628	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1629	}
935		1630
936	void	1631	void
937	aio_nop (SV *callback=&PL_sv_undef)	1632	aio_nop (SV *callback = &PL_sv_undef)
938	ALIAS:	1633	ALIAS:
939	aio_nop = EIO_NOP	1634	aio_nop = EIO_NOP
940	aio_sync = EIO_SYNC	1635	aio_sync = EIO_SYNC
941	PPCODE:	1636	PPCODE:
942	{	1637	{
…		…
946		1641
947	REQ_SEND;	1642	REQ_SEND;
948	}	1643	}
949		1644
950	int	1645	int
951	aioreq_pri (int pri = 0)	1646	aioreq_pri (int pri = NO_INIT)
952	PROTOTYPE: ;$
953	CODE:	1647	CODE:
954	RETVAL = next_pri;	1648	RETVAL = next_pri;
955	if (items > 0)	1649	if (items > 0)
956	{	1650	{
957	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1651	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
969	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1663	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
970	next_pri = nice;	1664	next_pri = nice;
971		1665
972	void	1666	void
973	flush ()	1667	flush ()
974	PROTOTYPE:
975	CODE:	1668	CODE:
976	while (eio_nreqs ())	1669	while (eio_nreqs ())
977	{	1670	{
978	poll_wait ();	1671	poll_wait ();
979	poll_cb ();	1672	poll_cb ();
980	}	1673	}
981		1674
982	int	1675	int
983	poll()	1676	poll ()
984	PROTOTYPE:
985	CODE:	1677	CODE:
986	poll_wait ();	1678	poll_wait ();
987	RETVAL = poll_cb ();	1679	RETVAL = poll_cb ();
988	OUTPUT:	1680	OUTPUT:
989	RETVAL	1681	RETVAL
990		1682
991	int	1683	int
992	poll_fileno()	1684	poll_fileno ()
993	PROTOTYPE:
994	CODE:	1685	CODE:
995	RETVAL = respipe [0];	1686	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1687	OUTPUT:
997	RETVAL	1688	RETVAL
998		1689
999	int	1690	int
1000	poll_cb(...)	1691	poll_cb (...)
1001	PROTOTYPE:	1692	PROTOTYPE:
1002	CODE:	1693	CODE:
1003	RETVAL = poll_cb ();	1694	RETVAL = poll_cb ();
1004	OUTPUT:	1695	OUTPUT:
1005	RETVAL	1696	RETVAL
1006		1697
1007	void	1698	void
1008	poll_wait()	1699	poll_wait ()
1009	PROTOTYPE:
1010	CODE:	1700	CODE:
1011	poll_wait ();	1701	poll_wait ();
1012		1702
1013	int	1703	int
1014	nreqs()	1704	nreqs ()
1015	PROTOTYPE:
1016	CODE:	1705	CODE:
1017	RETVAL = eio_nreqs ();	1706	RETVAL = eio_nreqs ();
1018	OUTPUT:	1707	OUTPUT:
1019	RETVAL	1708	RETVAL
1020		1709
1021	int	1710	int
1022	nready()	1711	nready ()
1023	PROTOTYPE:
1024	CODE:	1712	CODE:
1025	RETVAL = eio_nready ();	1713	RETVAL = eio_nready ();
1026	OUTPUT:	1714	OUTPUT:
1027	RETVAL	1715	RETVAL
1028		1716
1029	int	1717	int
1030	npending()	1718	npending ()
1031	PROTOTYPE:
1032	CODE:	1719	CODE:
1033	RETVAL = eio_npending ();	1720	RETVAL = eio_npending ();
1034	OUTPUT:	1721	OUTPUT:
1035	RETVAL	1722	RETVAL
1036		1723
1037	int	1724	int
1038	nthreads()	1725	nthreads ()
1039	PROTOTYPE:
1040	CODE:	1726	CODE:
1041	RETVAL = eio_nthreads ();	1727	RETVAL = eio_nthreads ();
1042	OUTPUT:	1728	OUTPUT:
1043	RETVAL	1729	RETVAL
1044		1730
		1731	int
		1732	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1733	CODE:
		1734	RETVAL = posix_fadvise (fh, offset, length, advice);
		1735	OUTPUT:
		1736	RETVAL
		1737
		1738	IV
		1739	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1740	CODE:
		1741	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1742	OUTPUT:
		1743	RETVAL
		1744
		1745	void
		1746	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1747	PPCODE:
		1748	sv_unmagic (scalar, MMAP_MAGIC);
		1749	{
		1750	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1751	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1752	if (addr == (void *)-1)
		1753	XSRETURN_NO;
		1754
		1755	sv_force_normal (scalar);
		1756
		1757	/* we store the length in mg_obj, as namlen is I32 :/ */
		1758	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1759	->mg_obj = (SV *)length;
		1760
		1761	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1762
		1763	if (!(prot & PROT_WRITE))
		1764	SvREADONLY_on (scalar);
		1765
		1766	if (SvLEN (scalar))
		1767	Safefree (SvPVX (scalar));
		1768
		1769	SvPVX (scalar) = (char *)addr;
		1770	SvCUR_set (scalar, length);
		1771	SvLEN_set (scalar, 0);
		1772	SvPOK_only (scalar);
		1773
		1774	XSRETURN_YES;
		1775	}
		1776
		1777	void
		1778	munmap (SV *scalar)
		1779	CODE:
		1780	sv_unmagic (scalar, MMAP_MAGIC);
		1781
		1782	int
		1783	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1784	ALIAS:
		1785	mprotect = 1
		1786	CODE:
		1787	{
		1788	STRLEN svlen;
		1789	void *addr = SvPVbyte (scalar, svlen);
		1790	STRLEN len = SvUV (length);
		1791
		1792	if (offset < 0)
		1793	offset += svlen;
		1794
		1795	if (offset < 0 || offset > svlen)
		1796	croak ("offset outside of scalar");
		1797
		1798	if (!SvOK (length) || len + offset > svlen)
		1799	len = svlen - offset;
		1800
		1801	addr = (void *)(((intptr_t)addr) + offset);
		1802	eio_page_align (&addr, &len);
		1803
		1804	switch (ix)
		1805	{
		1806	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1807	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1808	}
		1809	}
		1810	OUTPUT:
		1811	RETVAL
		1812
		1813	int
		1814	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1815	CODE:
		1816	{
		1817	STRLEN svlen;
		1818	void *addr = SvPVbyte (scalar, svlen);
		1819	size_t len = SvUV (length);
		1820
		1821	if (offset < 0)
		1822	offset += svlen;
		1823
		1824	if (offset < 0 || offset > svlen)
		1825	croak ("offset outside of scalar");
		1826
		1827	if (!SvOK (length) || len + offset > svlen)
		1828	len = svlen - offset;
		1829
		1830	addr = (void *)(((intptr_t)addr) + offset);
		1831	eio_page_align (&addr, &len);
		1832	#if _POSIX_MEMLOCK_RANGE
		1833	RETVAL = munlock (addr, len);
		1834	#else
		1835	RETVAL = EIO_ENOSYS ();
		1836	#endif
		1837	}
		1838	OUTPUT:
		1839	RETVAL
		1840
		1841	int
		1842	munlockall ()
		1843	CODE:
		1844	#if _POSIX_MEMLOCK
		1845	munlockall ();
		1846	#else
		1847	RETVAL = EIO_ENOSYS ();
		1848	#endif
		1849	OUTPUT:
		1850	RETVAL
		1851
		1852	int
		1853	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1854	CODE:
		1855	{
		1856	#if HAVE_LINUX_SPLICE
		1857	loff_t off_in_, off_out_;
		1858	RETVAL = splice (
		1859	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1860	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1861	length, flags
		1862	);
		1863	#else
		1864	RETVAL = EIO_ENOSYS ();
		1865	#endif
		1866	}
		1867	OUTPUT:
		1868	RETVAL
		1869
		1870	int
		1871	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1872	CODE:
		1873	#if HAVE_LINUX_SPLICE
		1874	RETVAL = tee (rfh, wfh, length, flags);
		1875	#else
		1876	RETVAL = EIO_ENOSYS ();
		1877	#endif
		1878	OUTPUT:
		1879	RETVAL
		1880
		1881	int
		1882	pipesize (aio_rfd rfh, int new_size = -1)
		1883	PROTOTYPE: $;$
		1884	CODE:
		1885	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1886	if (new_size >= 0)
		1887	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1888	else
		1889	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1890	#else
		1891	errno = ENOSYS;
		1892	RETVAL = -1;
		1893	#endif
		1894	OUTPUT:
		1895	RETVAL
		1896
		1897	void
		1898	pipe2 (int flags = 0)
		1899	PROTOTYPE: ;$
		1900	PPCODE:
		1901	{
		1902	int fd[2];
		1903	int res;
		1904
		1905	if (flags)
		1906	#if HAVE_PIPE2
		1907	res = pipe2 (fd, flags);
		1908	#else
		1909	res = (errno = ENOSYS, -1);
		1910	#endif
		1911	else
		1912	res = pipe (fd);
		1913
		1914	if (!res)
		1915	{
		1916	EXTEND (SP, 2);
		1917	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1918	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1919	}
		1920	}
		1921
1045	void _on_next_submit (SV *cb)	1922	void _on_next_submit (SV *cb)
1046	CODE:	1923	CODE:
1047	SvREFCNT_dec (on_next_submit);	1924	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1925	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1926
1050	PROTOTYPES: DISABLE	1927	PROTOTYPES: DISABLE
1051		1928
		1929	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1930
		1931	BOOT:
		1932	{
		1933	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1934	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1935	}
		1936
		1937	void
		1938	DESTROY (SV *self)
		1939	CODE:
		1940	{
		1941	aio_wd wd = SvAIO_WD (self);
		1942	#if HAVE_AT
		1943	{
		1944	SV *callback = &PL_sv_undef;
		1945	dREQ; /* clobbers next_pri :/ */
		1946	next_pri = req->pri; /* restore next_pri */
		1947	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1948	req->type = EIO_WD_CLOSE;
		1949	req->wd = wd;
		1950	REQ_SEND;
		1951	}
		1952	#else
		1953	eio_wd_close_sync (wd);
		1954	#endif
		1955	}
		1956
1052	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1957	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1053		1958
1054	void	1959	void
1055	cancel (aio_req_ornot req)	1960	cancel (aio_req_ornot req)
1056	CODE:	1961	CODE:
1057	eio_cancel (req);	1962	eio_cancel (req);
1058		1963
1059	void	1964	void
1060	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1965	cb (aio_req_ornot req, SV *callback = NO_INIT)
1061	PPCODE:	1966	PPCODE:
1062	{	1967	{
1063	if (GIMME_V != G_VOID)	1968	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1969	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1970
…		…
1110	AV *av;	2015	AV *av;
1111		2016
1112	grp->errorno = errno;	2017	grp->errorno = errno;
1113		2018
1114	av = newAV ();	2019	av = newAV ();
		2020	av_extend (av, items - 1);
1115		2021
1116	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1118		2024
1119	SvREFCNT_dec (grp->sv1);	2025	SvREFCNT_dec (grp->sv1);
…		…
1129	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1130	CODE:	2036	CODE:
1131	eio_grp_limit (grp, limit);	2037	eio_grp_limit (grp, limit);
1132		2038
1133	void	2039	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	2040	feed (aio_req grp, SV *callback = &PL_sv_undef)
1135	CODE:	2041	CODE:
1136	{	2042	{
1137	SvREFCNT_dec (grp->sv2);	2043	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	2044	grp->sv2 = newSVsv (callback);
		2045	grp->feed = aio_grp_feed;
1139		2046
1140	if (grp->int2 <= 0)	2047	if (grp->int2 <= 0)
1141	grp->int2 = 2;	2048	grp->int2 = 2;
1142		2049
1143	eio_grp_limit (grp, grp->int2);	2050	eio_grp_limit (grp, grp->int2);

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