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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.158 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		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
20	/* perl namespace pollution */	37	/* perl namespace pollution */
21	#undef VERSION	38	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		39
72	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	42	#undef readdir
75	#undef opendir	43	#undef opendir
76	#undef closedir	44	#undef closedir
77		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
78	#define EIO_STRUCT_STAT Stat_t	81	#define EIO_STRUCT_STATI64
79		82
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	83	#else
86	# define VAL64 NV	84
87	# define SvVAL64 SvNV	85	#include <sys/time.h>
88	# define newSVval64 newSVnv	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
89	#endif	93	#endif
90		94
91	/*****************************************************************************/	95	/*****************************************************************************/
92		96
93	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
103		107
104	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	109	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	110	typedef int aio_wfd; /* write file descriptor */
107		111
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		113
110	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
111	SV *callback; \	115	SV *callback; \
112	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
113	STRLEN stroffset; \	118	STRLEN stroffset; \
114	SV *self;	119	SV *self;
115		120
116	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
117		122
		123	#include "libeio/config.h"
118	#include "libeio/eio.h"	124	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		125
145	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
149		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	/*****************************************************************************/
		265
150	enum {	266	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	268	};
153		269
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
158		273
159	static SV *on_next_submit;	274	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	276	static int max_outstanding;
162		277
163	static s_epipe respipe;	278	static s_epipe respipe;
164		279
165	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
167		282
168	static void want_poll (void)	283	static void
		284	want_poll (void)
169	{	285	{
170	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	287	s_epipe_signal (&respipe);
172	}	288	}
173		289
174	static void done_poll (void)	290	static void
		291	done_poll (void)
175	{	292	{
176	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	294	s_epipe_drain (&respipe);
178	}	295	}
179		296
180	/* must be called at most once */	297	/* must be called at most once */
		298	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	299	req_sv (aio_req req, HV *stash)
182	{	300	{
183	if (!req->self)	301	if (!req->self)
184	{	302	{
185	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	305	}
188		306
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	308	}
191		309
192	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)
193	{	318	{
194	MAGIC *mg;	319	MAGIC *mg;
195		320
196	if (!SvROK (sv)	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	324	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	326	croak ("object of class IO::AIO::REQ expected");
201		327
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		329
204	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	331	}
206		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 void
207	static void aio_grp_feed (aio_req grp)	345	aio_grp_feed (aio_req grp)
208	{	346	{
209	if (grp->sv2 && SvOK (grp->sv2))	347	if (grp->sv2 && SvOK (grp->sv2))
210	{	348	{
211	dSP;	349	dSP;
212		350
…		…
220	FREETMPS;	358	FREETMPS;
221	LEAVE;	359	LEAVE;
222	}	360	}
223	}	361	}
224		362
		363	static void
225	static void req_submit (eio_req *req)	364	req_submit (eio_req *req)
226	{	365	{
227	eio_submit (req);	366	eio_submit (req);
228		367
229	if (expect_false (on_next_submit))	368	if (expect_false (on_next_submit))
230	{	369	{
…		…
237	PUTBACK;	376	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	377	call_sv (cb, G_DISCARD | G_EVAL);
239	}	378	}
240	}	379	}
241		380
		381	static int
242	static int req_invoke (eio_req *req)	382	req_invoke (eio_req *req)
243	{	383	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	384	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	385	SvREADONLY_off (req->sv2);
248		386
249	if (!EIO_CANCELLED (req) && req->callback)	387	if (!EIO_CANCELLED (req) && req->callback)
250	{	388	{
		389	dSP;
		390	static SV *sv_result_cache; /* caches the result integer SV */
		391	SV *sv_result;
		392
251	ENTER;	393	ENTER;
252	SAVETMPS;	394	SAVETMPS;
253	PUSHMARK (SP);	395	PUSHMARK (SP);
254	EXTEND (SP, 1);	396	EXTEND (SP, 1);
255		397
		398	/* do not recreate the result IV from scratch each time */
		399	if (expect_true (sv_result_cache))
		400	{
		401	sv_result = sv_result_cache; sv_result_cache = 0;
		402	SvIV_set (sv_result, req->result);
		403	SvIOK_only (sv_result);
		404	}
		405	else
		406	{
		407	sv_result = newSViv (req->result);
		408	SvREADONLY_on (sv_result);
		409	}
		410
256	switch (req->type)	411	switch (req->type)
257	{	412	{
		413	case EIO_WD_OPEN:
		414	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		415	break;
		416
258	case EIO_READDIR:	417	case EIO_READDIR:
259	{	418	{
260	SV *rv = &PL_sv_undef;	419	SV *rv = &PL_sv_undef;
261		420
262	if (req->result >= 0)	421	if (req->result >= 0)
…		…
345		504
346	PUSHs (fh);	505	PUSHs (fh);
347	}	506	}
348	break;	507	break;
349		508
		509	case EIO_STATVFS:
		510	case EIO_FSTATVFS:
		511	{
		512	SV *rv = &PL_sv_undef;
		513
		514	#ifndef _WIN32
		515	if (req->result >= 0)
		516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		518	HV *hv = newHV ();
		519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		520	* chooses to make it a struct.
		521	*/
		522	unsigned long fsid = 0;
		523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		524
		525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		526
		527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		529	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		538	}
		539	#endif
		540
		541	PUSHs (rv);
		542	}
		543
		544	break;
		545
350	case EIO_GROUP:	546	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
352		548
353	if (req->sv1)	549	if (req->sv1)
354	{	550	{
…		…
364	case EIO_NOP:	560	case EIO_NOP:
365	case EIO_BUSY:	561	case EIO_BUSY:
366	break;	562	break;
367		563
368	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
369	if (req->result > 0)	566	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	568	break;
372		569
373	case EIO_STAT:	570	case EIO_STAT:
374	case EIO_LSTAT:	571	case EIO_LSTAT:
375	case EIO_FSTAT:	572	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
377	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
		580	break;
		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	584	break;
381		585
382	case EIO_READ:	586	case EIO_READ:
383	{	587	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	590	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	591	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
389	}	593	}
390	break;	594	break;
391		595
392	case EIO_DUP2:	596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	637	if (req->result > 0)
394	req->result = 0;	638	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	639	/* FALLTHROUGH */
396		640
397	default:	641	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
399	break;	643	break;
400	}	644	}
401		645
402	errno = req->errorno;	646	errno = req->errorno;
403		647
404	PUTBACK;	648	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	650	SPAGAIN;
407		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
408	FREETMPS;	657	FREETMPS;
409	LEAVE;	658	LEAVE;
410		659
411	PUTBACK;	660	PUTBACK;
412	}	661	}
413		662
414	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
415	}	664	}
416		665
		666	static void
417	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
418	{	668	{
419	if (req->self)	669	if (req->self)
420	{	670	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
423	}	673	}
424		674
425	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
428		680
429	Safefree (req);	681	free (req);
430	}	682	}
431		683
		684	static void
432	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
433	{	686	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
437	return;	688	return;
438		689
439	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	691	grp->sv2 = 0;
441		692
442	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
443	}	694	}
444		695
445	static void	696	static void ecb_cold
446	create_respipe (void)	697	create_respipe (void)
447	{	698	{
448	if (s_epipe_renew (&respipe))	699	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	700	croak ("IO::AIO: unable to initialize result pipe");
450	}	701	}
451		702
452	static void poll_wait (void)	703	static void
		704	poll_wait (void)
453	{	705	{
454	while (eio_nreqs ())	706	while (eio_nreqs ())
455	{	707	{
456	int size;	708	int size;
457		709
…		…
466		718
467	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
468	}	720	}
469	}	721	}
470		722
471	static int poll_cb (void)	723	static int
		724	poll_cb (void)
472	{	725	{
473	for (;;)	726	for (;;)
474	{	727	{
475	int res = eio_poll ();	728	int res = eio_poll ();
476		729
…		…
482		735
483	poll_wait ();	736	poll_wait ();
484	}	737	}
485	}	738	}
486		739
487	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
488	{	742	{
489	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
490	}	747	}
		748
		749	/*****************************************************************************/
		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	# define PROT_NONE 0
		759	# define PROT_WRITE 0
		760	# define MAP_PRIVATE 0
		761	# define MAP_SHARED 0
		762	# define MAP_FIXED 0
		763	#endif
		764
		765	#define MMAP_MAGIC PERL_MAGIC_ext
		766
		767	static int ecb_cold
		768	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		769	{
		770	int old_errno = errno;
		771	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		772	errno = old_errno;
		773
		774	mg->mg_obj = 0; /* just in case */
		775
		776	SvREADONLY_off (sv);
		777
		778	if (SvPVX (sv) != mg->mg_ptr)
		779	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		780
		781	SvCUR_set (sv, 0);
		782	SvPVX (sv) = 0;
		783	SvOK_off (sv);
		784
		785	return 0;
		786	}
		787
		788	static MGVTBL mmap_vtbl = {
		789	0, 0, 0, 0, mmap_free
		790	};
		791
		792	/*****************************************************************************/
491		793
492	static SV *	794	static SV *
493	get_cb (SV *cb_sv)	795	get_cb (SV *cb_sv)
494	{	796	{
495	SvGETMAGIC (cb_sv);	797	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	798	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	799	}
498		800
		801	static aio_req ecb_noinline
		802	dreq (SV *callback)
		803	{
		804	SV *cb_cv;
		805	aio_req req;
		806	int req_pri = next_pri;
		807	next_pri = EIO_PRI_DEFAULT;
		808
		809	cb_cv = get_cb (callback);
		810
		811	req = calloc (sizeof (*req), 1);
		812	if (!req)
		813	croak ("out of memory during eio_req allocation");
		814
		815	req->callback = SvREFCNT_inc (cb_cv);
		816	req->pri = req_pri;
		817
		818	return req;
		819	}
		820
499	#define dREQ \	821	#define dREQ \
500	SV *cb_cv; \	822	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		823
514	#define REQ_SEND \	824	#define REQ_SEND \
515	PUTBACK; \	825	PUTBACK; \
516	req_submit (req); \	826	req_submit (req); \
517	SPAGAIN; \	827	SPAGAIN; \
518	\	828	\
519	if (GIMME_V != G_VOID) \	829	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	830	XPUSHs (req_sv (req, aio_req_stash));
521		831
		832	ecb_inline void
		833	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		834	{
		835	if (expect_false (SvROK (path)))
		836	{
		837	SV *rv = SvRV (path);
		838	SV *wdob;
		839
		840	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		841	{
		842	path = AvARRAY (rv)[1];
		843	wdob = AvARRAY (rv)[0];
		844
		845	if (SvOK (wdob))
		846	{
		847	*wd = SvAIO_WD (wdob);
		848	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		849	}
		850	else
		851	*wd = EIO_INVALID_WD;
		852	}
		853	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		854	{
		855	*wd = (aio_wd)(long)SvIVX (rv);
		856	*wdsv = SvREFCNT_inc_NN (rv);
		857	*ptr = ".";
		858	return; /* path set to "." */
		859	}
		860	else
		861	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		862	}
		863
		864	*pathsv = newSVsv (path);
		865	*ptr = SvPVbyte_nolen (*pathsv);
		866	}
		867
		868	static void ecb_noinline
		869	req_set_path1 (aio_req req, SV *path)
		870	{
		871	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		872	}
		873
		874	static void ecb_noinline
		875	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		876	{
		877	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		878
		879	switch (SvTYPE (rv))
		880	{
		881	case SVt_PVIO:
		882	case SVt_PVLV:
		883	case SVt_PVGV:
		884	req->type = type_fh;
		885	req->sv1 = newSVsv (fh_or_path);
		886	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		887	break;
		888
		889	default:
		890	req->type = type_path;
		891	req_set_path1 (req, fh_or_path);
		892	break;
		893	}
		894	}
		895
		896	XS(boot_IO__AIO) ecb_cold;
		897
522	MODULE = IO::AIO PACKAGE = IO::AIO	898	MODULE = IO::AIO PACKAGE = IO::AIO
523		899
524	PROTOTYPES: ENABLE	900	PROTOTYPES: ENABLE
525		901
526	BOOT:	902	BOOT:
527	{	903	{
528	static const struct {	904	static const struct {
529	const char *name;	905	const char *name;
530	IV iv;	906	IV iv;
531	} *civ, const_iv[] = {	907	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	908	# define const_niv(name, value) { # name, (IV) value },
		909	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	910	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	911
		912	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		913
535	const_iv (ENOSYS , ENOSYS)	914	const_iv (ENOSYS)
		915	const_iv (EXDEV)
		916	const_iv (EBADR)
		917
536	const_iv (O_RDONLY, O_RDONLY)	918	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	919	const_iv (O_WRONLY)
		920	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	921	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	922	const_iv (O_TRUNC)
540	#ifndef _WIN32	923	const_iv (O_EXCL)
		924	const_iv (O_APPEND)
		925
		926	const_iv (O_ASYNC)
		927	const_iv (O_DIRECT)
		928	const_iv (O_NOATIME)
		929
		930	const_iv (O_CLOEXEC)
		931	const_iv (O_NOCTTY)
		932	const_iv (O_NOFOLLOW)
		933	const_iv (O_NONBLOCK)
		934	const_iv (O_EXEC)
		935	const_iv (O_SEARCH)
		936	const_iv (O_DIRECTORY)
		937	const_iv (O_DSYNC)
		938	const_iv (O_RSYNC)
		939	const_iv (O_SYNC)
		940	const_iv (O_TTY_INIT)
		941
541	const_iv (S_IFIFO , S_IFIFO)	942	const_iv (S_IFIFO)
542	#endif	943	const_iv (S_IFCHR)
		944	const_iv (S_IFBLK)
		945	const_iv (S_IFLNK)
		946	const_iv (S_IFREG)
		947	const_iv (S_IFDIR)
		948	const_iv (S_IFWHT)
		949	const_iv (S_IFSOCK)
		950	const_iv (S_IFMT)
		951
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	952	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	953	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	954	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	955	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	956	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	957	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		958
		959	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		960	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		961	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		962	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		963	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		964
		965	const_iv (ST_RDONLY)
		966	const_iv (ST_NOSUID)
		967	const_iv (ST_NODEV)
		968	const_iv (ST_NOEXEC)
		969	const_iv (ST_SYNCHRONOUS)
		970	const_iv (ST_MANDLOCK)
		971	const_iv (ST_WRITE)
		972	const_iv (ST_APPEND)
		973	const_iv (ST_IMMUTABLE)
		974	const_iv (ST_NOATIME)
		975	const_iv (ST_NODIRATIME)
		976	const_iv (ST_RELATIME)
		977
		978	const_iv (PROT_NONE)
		979	const_iv (PROT_EXEC)
		980	const_iv (PROT_READ)
		981	const_iv (PROT_WRITE)
		982
		983	/*const_iv (MAP_FIXED)*/
		984	const_iv (MAP_PRIVATE)
		985	const_iv (MAP_SHARED)
		986	const_iv (MAP_ANONYMOUS)
		987
		988	/* linuxish */
		989	const_iv (MAP_HUGETLB)
		990	const_iv (MAP_LOCKED)
		991	const_iv (MAP_NORESERVE)
		992	const_iv (MAP_POPULATE)
		993	const_iv (MAP_NONBLOCK)
		994
		995	const_iv (FIEMAP_FLAG_SYNC)
		996	const_iv (FIEMAP_FLAG_XATTR)
		997	const_iv (FIEMAP_FLAGS_COMPAT)
		998	const_iv (FIEMAP_EXTENT_LAST)
		999	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1000	const_iv (FIEMAP_EXTENT_DELALLOC)
		1001	const_iv (FIEMAP_EXTENT_ENCODED)
		1002	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1003	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1004	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1005	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1006	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1007	const_iv (FIEMAP_EXTENT_MERGED)
		1008	const_iv (FIEMAP_EXTENT_SHARED)
		1009
		1010	const_iv (SPLICE_F_MOVE)
		1011	const_iv (SPLICE_F_NONBLOCK)
		1012	const_iv (SPLICE_F_MORE)
		1013	const_iv (SPLICE_F_GIFT)
		1014
		1015	const_iv (SEEK_DATA)
		1016	const_iv (SEEK_HOLE)
		1017
		1018	/* libeio constants */
		1019	const_eio (SEEK_SET)
		1020	const_eio (SEEK_CUR)
		1021	const_eio (SEEK_END)
		1022
		1023	const_eio (MCL_FUTURE)
		1024	const_eio (MCL_CURRENT)
549		1025
550	const_eio (MS_ASYNC)	1026	const_eio (MS_ASYNC)
551	const_eio (MS_INVALIDATE)	1027	const_eio (MS_INVALIDATE)
552	const_eio (MS_SYNC)	1028	const_eio (MS_SYNC)
553		1029
554	const_eio (MT_MODIFY)	1030	const_eio (MT_MODIFY)
555		1031
556	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1032	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
557	const_eio (SYNC_FILE_RANGE_WRITE)	1033	const_eio (SYNC_FILE_RANGE_WRITE)
558	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1034	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1035
		1036	const_eio (FALLOC_FL_KEEP_SIZE)
		1037	const_eio (FALLOC_FL_PUNCH_HOLE)
		1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1039	const_eio (FALLOC_FL_ZERO_RANGE)
559		1040
560	const_eio (READDIR_DENTS)	1041	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	1042	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	1043	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1044	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1055	};
575		1056
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1057	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1058	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1059	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1060	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
579		1061
580	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
581	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1064
583	create_respipe ();	1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1066
585	if (eio_init (want_poll, done_poll) < 0)	1067	reinit ();
586	croak ("IO::AIO: unable to initialise eio library");
587
588	/* atfork child called in fifo order, so before eio's handler */
589	X_THREAD_ATFORK (0, 0, atfork_child);
590	}	1068	}
591		1069
592	void	1070	void
		1071	reinit ()
		1072	PROTOTYPE:
		1073
		1074	void
593	max_poll_reqs (int nreqs)	1075	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1076	PROTOTYPE: $
595	CODE:	1077	CODE:
596	eio_set_max_poll_reqs (nreqs);	1078	eio_set_max_poll_reqs (nreqs);
597		1079
598	void	1080	void
…		…
600	PROTOTYPE: $	1082	PROTOTYPE: $
601	CODE:	1083	CODE:
602	eio_set_max_poll_time (nseconds);	1084	eio_set_max_poll_time (nseconds);
603		1085
604	void	1086	void
605	min_parallel (int nthreads)	1087	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1088	PROTOTYPE: $
607	CODE:	1089	CODE:
608	eio_set_min_parallel (nthreads);	1090	eio_set_min_parallel (nthreads);
609		1091
610	void	1092	void
611	max_parallel (int nthreads)	1093	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1094	PROTOTYPE: $
613	CODE:	1095	CODE:
614	eio_set_max_parallel (nthreads);	1096	eio_set_max_parallel (nthreads);
615		1097
616	void	1098	void
617	max_idle (int nthreads)	1099	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1100	PROTOTYPE: $
619	CODE:	1101	CODE:
620	eio_set_max_idle (nthreads);	1102	eio_set_max_idle (nthreads);
621		1103
622	void	1104	void
		1105	idle_timeout (unsigned int seconds)
		1106	PROTOTYPE: $
		1107	CODE:
		1108	eio_set_idle_timeout (seconds);
		1109
		1110	void
623	max_outstanding (int maxreqs)	1111	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1112	PROTOTYPE: $
625	CODE:	1113	CODE:
626	max_outstanding = maxreqs;	1114	max_outstanding = maxreqs;
627		1115
628	void	1116	void
629	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1117	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
630	PROTOTYPE: $$$;$
631	PPCODE:	1118	PPCODE:
632	{	1119	{
633	dREQ;	1120	dREQ;
634		1121
		1122	req->type = EIO_WD_OPEN;
		1123	req_set_path1 (req, pathname);
		1124
		1125	REQ_SEND;
		1126	}
		1127
		1128	void
		1129	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1130	PPCODE:
		1131	{
		1132	dREQ;
		1133
635	req->type = EIO_OPEN;	1134	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1135	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1136	req->int1 = flags;
639	req->int2 = mode;	1137	req->int2 = mode;
640		1138
641	REQ_SEND;	1139	REQ_SEND;
642	}	1140	}
643		1141
644	void	1142	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1143	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1144	ALIAS:
648	aio_fsync = EIO_FSYNC	1145	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1146	aio_fdatasync = EIO_FDATASYNC
		1147	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1148	PPCODE:
651	{	1149	{
652	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1151	dREQ;
654		1152
655	req->type = ix;	1153	req->type = ix;
656	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
657	req->int1 = fd;	1155	req->int1 = fd;
658		1156
659	REQ_SEND (req);	1157	REQ_SEND;
660	}	1158	}
661		1159
662	void	1160	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1161	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1162	PPCODE:
666	{	1163	{
667	int fd = s_fileno_croak (fh, 0);	1164	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1165	dREQ;
669		1166
670	req->type = EIO_SYNC_FILE_RANGE;	1167	req->type = EIO_SYNC_FILE_RANGE;
671	req->sv1 = newSVsv (fh);	1168	req->sv1 = newSVsv (fh);
672	req->int1 = fd;	1169	req->int1 = fd;
673	req->offs = offset;	1170	req->offs = offset;
674	req->size = nbytes;	1171	req->size = nbytes;
675	req->int2 = flags;	1172	req->int2 = flags;
676		1173
677	REQ_SEND (req);	1174	REQ_SEND;
678	}	1175	}
679		1176
680	void	1177	void
681	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1178	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
682	PROTOTYPE: $;$
683	PPCODE:	1179	PPCODE:
684	{	1180	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1181	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1182	dREQ;
688		1183
689	if (close_pipe < 0)	1184	req->type = EIO_FALLOCATE;
		1185	req->sv1 = newSVsv (fh);
		1186	req->int1 = fd;
		1187	req->int2 = mode;
		1188	req->offs = offset;
		1189	req->size = len;
		1190
		1191	REQ_SEND;
		1192	}
		1193
		1194	void
		1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1196	PPCODE:
		1197	{
		1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1199	int fd = s_fileno_croak (fh, 0);
		1200	dREQ;
		1201
		1202	if (expect_false (close_fd < 0))
690	{	1203	{
691	int pipefd [2];	1204	int pipefd [2];
692		1205
		1206	if (
		1207	#ifdef _WIN32
		1208	_pipe (pipefd, 1, _O_BINARY) < 0
		1209	#else
693	if (pipe (pipefd) < 0	1210	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1211	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1212	#endif
		1213	|| close (pipefd [1]) < 0
		1214	)
696	abort (); /*D*/	1215	abort (); /*D*/
697		1216
698	close_pipe = pipefd [0];	1217	close_fd = pipefd [0];
699	}	1218	}
700		1219
701	req->type = EIO_DUP2;	1220	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1221	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1222	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1223	req->int2 = fd;
705		1224
706	REQ_SEND (req);	1225	REQ_SEND;
707	}	1226	}
708		1227
709	void	1228	void
		1229	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1230	PPCODE:
		1231	{
		1232	int fd = s_fileno_croak (fh, 0);
		1233	dREQ;
		1234
		1235	req->type = EIO_SEEK;
		1236	req->sv1 = newSVsv (fh);
		1237	req->int1 = fd;
		1238	req->offs = SvVAL64 (offset);
		1239	req->int2 = whence;
		1240
		1241	REQ_SEND;
		1242	}
		1243
		1244	void
710	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1245	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
711	ALIAS:	1246	ALIAS:
712	aio_read = EIO_READ	1247	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1248	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1249	PPCODE:
716	{	1250	{
717	STRLEN svlen;	1251	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1252	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1253	char *svptr = SvPVbyte (data, svlen);
…		…
732	len = svlen - dataoffset;	1266	len = svlen - dataoffset;
733	}	1267	}
734	else	1268	else
735	{	1269	{
736	/* read: check type and grow scalar as necessary */	1270	/* read: check type and grow scalar as necessary */
737	SvUPGRADE (data, SVt_PV);	1271	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
738	svptr = SvGROW (data, len + dataoffset + 1);	1272	svptr = sv_grow (data, len + dataoffset + 1);
		1273	else if (SvCUR (data) < len + dataoffset)
		1274	croak ("length + dataoffset outside of scalar, and cannot grow");
739	}	1275	}
740		1276
741	{	1277	{
742	dREQ;	1278	dREQ;
743		1279
…		…
759	REQ_SEND;	1295	REQ_SEND;
760	}	1296	}
761	}	1297	}
762		1298
763	void	1299	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
765	PROTOTYPE: $$;$	1301	ALIAS:
		1302	aio_readlink = EIO_READLINK
		1303	aio_realpath = EIO_REALPATH
766	PPCODE:	1304	PPCODE:
767	{	1305	{
768	SV *data;
769	dREQ;	1306	dREQ;
770		1307
771	req->type = EIO_READLINK;	1308	req->type = ix;
772	req->sv1 = newSVsv (path);	1309	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1310
775	REQ_SEND;	1311	REQ_SEND;
776	}	1312	}
777		1313
778	void	1314	void
779	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1315	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1316	PPCODE:
782	{	1317	{
783	int ifd = s_fileno_croak (in_fh , 0);	1318	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1319	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1320	dREQ;
786		1321
787	req->type = EIO_SENDFILE;	1322	req->type = EIO_SENDFILE;
788	req->sv1 = newSVsv (out_fh);	1323	req->sv1 = newSVsv (out_fh);
789	req->int1 = ofd;	1324	req->int1 = ofd;
…		…
794		1329
795	REQ_SEND;	1330	REQ_SEND;
796	}	1331	}
797		1332
798	void	1333	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1334	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1335	PPCODE:
802	{	1336	{
803	int fd = s_fileno_croak (fh, 0);	1337	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1338	dREQ;
805		1339
806	req->type = EIO_READAHEAD;	1340	req->type = EIO_READAHEAD;
807	req->sv1 = newSVsv (fh);	1341	req->sv1 = newSVsv (fh);
808	req->int1 = fd;	1342	req->int1 = fd;
…		…
811		1345
812	REQ_SEND;	1346	REQ_SEND;
813	}	1347	}
814		1348
815	void	1349	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1350	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
817	ALIAS:	1351	ALIAS:
818	aio_stat = EIO_STAT	1352	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1353	aio_lstat = EIO_LSTAT
		1354	aio_statvfs = EIO_STATVFS
820	PPCODE:	1355	PPCODE:
821	{	1356	{
822	dREQ;	1357	dREQ;
823		1358
824	req->sv1 = newSVsv (fh_or_path);	1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
825
826	if (SvPOK (req->sv1))
827	{
828	req->type = ix;
829	req->ptr1 = SvPVbyte_nolen (req->sv1);
830	}
831	else
832	{
833	req->type = EIO_FSTAT;
834	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
835	}
836		1360
837	REQ_SEND;	1361	REQ_SEND;
838	}	1362	}
839		1363
		1364	UV
		1365	major (UV dev)
		1366	ALIAS:
		1367	minor = 1
		1368	CODE:
		1369	RETVAL = ix ? major (dev) : minor (dev);
		1370	OUTPUT:
		1371	RETVAL
		1372
		1373	UV
		1374	makedev (UV maj, UV min)
		1375	CODE:
		1376	RETVAL = makedev (maj, min);
		1377	OUTPUT:
		1378	RETVAL
		1379
840	void	1380	void
841	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1381	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
842	PPCODE:	1382	PPCODE:
843	{	1383	{
844	dREQ;	1384	dREQ;
845		1385
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1386	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1387	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1388	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
849
850	if (SvPOK (req->sv1))
851	{
852	req->type = EIO_UTIME;
853	req->ptr1 = SvPVbyte_nolen (req->sv1);
854	}
855	else
856	{
857	req->type = EIO_FUTIME;
858	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
859	}
860		1389
861	REQ_SEND;	1390	REQ_SEND;
862	}	1391	}
863		1392
864	void	1393	void
865	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1394	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
866	PPCODE:	1395	PPCODE:
867	{	1396	{
868	dREQ;	1397	dREQ;
869		1398
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1399	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1400	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
873	if (SvPOK (req->sv1))
874	{
875	req->type = EIO_TRUNCATE;
876	req->ptr1 = SvPVbyte_nolen (req->sv1);
877	}
878	else
879	{
880	req->type = EIO_FTRUNCATE;
881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882	}
883		1401
884	REQ_SEND;	1402	REQ_SEND;
885	}	1403	}
886		1404
887	void	1405	void
888	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1406	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
889	ALIAS:
890	aio_chmod = EIO_CHMOD
891	aio_mkdir = EIO_MKDIR
892	PPCODE:	1407	PPCODE:
893	{	1408	{
894	dREQ;	1409	dREQ;
895		1410
896	req->int2 = mode;	1411	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
898
899	if (SvPOK (req->sv1))
900	{
901	req->type = ix;
902	req->ptr1 = SvPVbyte_nolen (req->sv1);
903	}
904	else
905	{
906	req->type = EIO_FCHMOD;
907	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
908	}
909		1413
910	REQ_SEND;	1414	REQ_SEND;
911	}	1415	}
912		1416
913	void	1417	void
914	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1418	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
915	PPCODE:	1419	PPCODE:
916	{	1420	{
917	dREQ;	1421	dREQ;
918		1422
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1423	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1424	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1425	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
922
923	if (SvPOK (req->sv1))
924	{
925	req->type = EIO_CHOWN;
926	req->ptr1 = SvPVbyte_nolen (req->sv1);
927	}
928	else
929	{
930	req->type = EIO_FCHOWN;
931	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
932	}
933		1426
934	REQ_SEND;	1427	REQ_SEND;
935	}	1428	}
936		1429
937	void	1430	void
938	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1431	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
939	PPCODE:	1432	PPCODE:
940	{	1433	{
941	dREQ;	1434	dREQ;
942		1435
943	req->type = EIO_READDIR;	1436	req->type = EIO_READDIR;
944	req->sv1 = newSVsv (pathname);
945	req->ptr1 = SvPVbyte_nolen (req->sv1);
946	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1437	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1438
948	if (flags & EIO_READDIR_DENTS)	1439	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1440	req->int1 |= EIO_READDIR_CUSTOM2;
950		1441
		1442	req_set_path1 (req, pathname);
		1443
951	REQ_SEND;	1444	REQ_SEND;
952	}	1445	}
953		1446
954	void	1447	void
		1448	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MKDIR;
		1454	req->int2 = mode;
		1455	req_set_path1 (req, pathname);
		1456
		1457	REQ_SEND;
		1458	}
		1459
		1460	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1461	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
956	ALIAS:	1462	ALIAS:
957	aio_unlink = EIO_UNLINK	1463	aio_unlink = EIO_UNLINK
958	aio_rmdir = EIO_RMDIR	1464	aio_rmdir = EIO_RMDIR
959	aio_readdir = EIO_READDIR	1465	aio_readdir = EIO_READDIR
960	PPCODE:	1466	PPCODE:
961	{	1467	{
962	dREQ;	1468	dREQ;
963		1469
964	req->type = ix;	1470	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1471	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1472
968	REQ_SEND;	1473	REQ_SEND;
969	}	1474	}
970		1475
971	void	1476	void
972	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1477	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
973	ALIAS:	1478	ALIAS:
974	aio_link = EIO_LINK	1479	aio_link = EIO_LINK
975	aio_symlink = EIO_SYMLINK	1480	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1481	aio_rename = EIO_RENAME
977	PPCODE:	1482	PPCODE:
978	{	1483	{
		1484	eio_wd wd2 = 0;
979	dREQ;	1485	dREQ;
980		1486
981	req->type = ix;	1487	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1488	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1490	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1491
987	REQ_SEND;	1492	REQ_SEND;
988	}	1493	}
989		1494
990	void	1495	void
991	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1496	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
992	PPCODE:	1497	PPCODE:
993	{	1498	{
994	dREQ;	1499	dREQ;
995		1500
996	req->type = EIO_MKNOD;	1501	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1502	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1503	req->offs = dev;
		1504	req_set_path1 (req, pathname);
1001		1505
1002	REQ_SEND;	1506	REQ_SEND;
1003	}	1507	}
1004		1508
1005	void	1509	void
1006	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1007	ALIAS:	1511	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1512	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1513	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1514	PPCODE:
1012	{	1515	{
1013	STRLEN svlen;	1516	STRLEN svlen;
		1517	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1518	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);
1016		1519
1017	if (offset < 0)	1520	if (offset < 0)
1018	offset += svlen;	1521	offset += svlen;
1019		1522
1020	if (offset < 0 || offset > svlen)	1523	if (offset < 0 || offset > svlen)
…		…
1025		1528
1026	{	1529	{
1027	dREQ;	1530	dREQ;
1028		1531
1029	req->type = ix;	1532	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1533	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1534	req->ptr2 = (char *)svptr + offset;
		1535	req->size = len;
1033	req->int1 = flags;	1536	req->int1 = flags;
1034		1537
1035	REQ_SEND;	1538	REQ_SEND;
1036	}	1539	}
1037	}	1540	}
1038		1541
1039	void	1542	void
		1543	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1544	PPCODE:
		1545	{
		1546	STRLEN svlen;
		1547	char *svptr = SvPVbyte (data, svlen);
		1548	UV len = SvUV (length);
		1549
		1550	if (offset < 0)
		1551	offset += svlen;
		1552
		1553	if (offset < 0 || offset > svlen)
		1554	croak ("offset outside of scalar");
		1555
		1556	if (!SvOK (length) || len + offset > svlen)
		1557	len = svlen - offset;
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = EIO_MLOCK;
		1563	req->sv2 = SvREFCNT_inc (data);
		1564	req->ptr2 = (char *)svptr + offset;
		1565	req->size = len;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
		1572	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1573	PPCODE:
		1574	{
		1575	dREQ;
		1576
		1577	req->type = EIO_MLOCKALL;
		1578	req->int1 = flags;
		1579
		1580	REQ_SEND;
		1581	}
		1582
		1583	void
		1584	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1585	PPCODE:
		1586	{
		1587	int fd = s_fileno_croak (fh, 0);
		1588	dREQ;
		1589
		1590	req->type = EIO_CUSTOM;
		1591	req->sv1 = newSVsv (fh);
		1592	req->int1 = fd;
		1593
		1594	req->feed = fiemap;
		1595	#if HAVE_FIEMAP
		1596	/* keep our fingers crossed that the next two types are 64 bit */
		1597	req->offs = start;
		1598	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1599	req->int2 = flags;
		1600	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1601	#endif
		1602
		1603	REQ_SEND;
		1604	}
		1605
		1606	void
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1607	aio_busy (double delay, SV *callback = &PL_sv_undef)
1041	PPCODE:	1608	PPCODE:
1042	{	1609	{
1043	dREQ;	1610	dREQ;
1044		1611
1045	req->type = EIO_BUSY;	1612	req->type = EIO_BUSY;
…		…
1047		1614
1048	REQ_SEND;	1615	REQ_SEND;
1049	}	1616	}
1050		1617
1051	void	1618	void
1052	aio_group (SV *callback=&PL_sv_undef)	1619	aio_group (SV *callback = &PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1620	PPCODE:
1055	{	1621	{
1056	dREQ;	1622	dREQ;
1057		1623
1058	req->type = EIO_GROUP;	1624	req->type = EIO_GROUP;
1059		1625
		1626	PUTBACK;
1060	req_submit (req);	1627	req_submit (req);
		1628	SPAGAIN;
		1629
1061	XPUSHs (req_sv (req, aio_grp_stash));	1630	XPUSHs (req_sv (req, aio_grp_stash));
1062	}	1631	}
1063		1632
1064	void	1633	void
1065	aio_nop (SV *callback=&PL_sv_undef)	1634	aio_nop (SV *callback = &PL_sv_undef)
1066	ALIAS:	1635	ALIAS:
1067	aio_nop = EIO_NOP	1636	aio_nop = EIO_NOP
1068	aio_sync = EIO_SYNC	1637	aio_sync = EIO_SYNC
1069	PPCODE:	1638	PPCODE:
1070	{	1639	{
…		…
1074		1643
1075	REQ_SEND;	1644	REQ_SEND;
1076	}	1645	}
1077		1646
1078	int	1647	int
1079	aioreq_pri (int pri = 0)	1648	aioreq_pri (int pri = NO_INIT)
1080	PROTOTYPE: ;$
1081	CODE:	1649	CODE:
1082	RETVAL = next_pri;	1650	RETVAL = next_pri;
1083	if (items > 0)	1651	if (items > 0)
1084	{	1652	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1653	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1665	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1666	next_pri = nice;
1099		1667
1100	void	1668	void
1101	flush ()	1669	flush ()
1102	PROTOTYPE:
1103	CODE:	1670	CODE:
1104	while (eio_nreqs ())	1671	while (eio_nreqs ())
1105	{	1672	{
1106	poll_wait ();	1673	poll_wait ();
1107	poll_cb ();	1674	poll_cb ();
1108	}	1675	}
1109		1676
1110	int	1677	int
1111	poll()	1678	poll ()
1112	PROTOTYPE:
1113	CODE:	1679	CODE:
1114	poll_wait ();	1680	poll_wait ();
1115	RETVAL = poll_cb ();	1681	RETVAL = poll_cb ();
1116	OUTPUT:	1682	OUTPUT:
1117	RETVAL	1683	RETVAL
1118		1684
1119	int	1685	int
1120	poll_fileno()	1686	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1687	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1688	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1689	OUTPUT:
1125	RETVAL	1690	RETVAL
1126		1691
1127	int	1692	int
1128	poll_cb(...)	1693	poll_cb (...)
1129	PROTOTYPE:	1694	PROTOTYPE:
1130	CODE:	1695	CODE:
1131	RETVAL = poll_cb ();	1696	RETVAL = poll_cb ();
1132	OUTPUT:	1697	OUTPUT:
1133	RETVAL	1698	RETVAL
1134		1699
1135	void	1700	void
1136	poll_wait()	1701	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1702	CODE:
1139	poll_wait ();	1703	poll_wait ();
1140		1704
1141	int	1705	int
1142	nreqs()	1706	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1707	CODE:
1145	RETVAL = eio_nreqs ();	1708	RETVAL = eio_nreqs ();
1146	OUTPUT:	1709	OUTPUT:
1147	RETVAL	1710	RETVAL
1148		1711
1149	int	1712	int
1150	nready()	1713	nready ()
1151	PROTOTYPE:
1152	CODE:	1714	CODE:
1153	RETVAL = eio_nready ();	1715	RETVAL = eio_nready ();
1154	OUTPUT:	1716	OUTPUT:
1155	RETVAL	1717	RETVAL
1156		1718
1157	int	1719	int
1158	npending()	1720	npending ()
1159	PROTOTYPE:
1160	CODE:	1721	CODE:
1161	RETVAL = eio_npending ();	1722	RETVAL = eio_npending ();
1162	OUTPUT:	1723	OUTPUT:
1163	RETVAL	1724	RETVAL
1164		1725
1165	int	1726	int
1166	nthreads()	1727	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1728	CODE:
1169	RETVAL = eio_nthreads ();	1729	RETVAL = eio_nthreads ();
1170	OUTPUT:	1730	OUTPUT:
1171	RETVAL	1731	RETVAL
1172		1732
1173	int	1733	int
1174	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1734	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1175	PROTOTYPE: $$$$
1176	CODE:	1735	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1736	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1737	OUTPUT:
1183	RETVAL	1738	RETVAL
1184		1739
1185	ssize_t	1740	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1741	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1742	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1743	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1744	OUTPUT:
1191	RETVAL	1745	RETVAL
1192		1746
		1747	void
		1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1749	PPCODE:
		1750	sv_unmagic (scalar, MMAP_MAGIC);
		1751	{
		1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1754	if (addr == (void *)-1)
		1755	XSRETURN_NO;
		1756
		1757	sv_force_normal (scalar);
		1758
		1759	/* we store the length in mg_obj, as namlen is I32 :/ */
		1760	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1761	->mg_obj = (SV *)length;
		1762
		1763	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1764
		1765	if (!(prot & PROT_WRITE))
		1766	SvREADONLY_on (scalar);
		1767
		1768	if (SvLEN (scalar))
		1769	Safefree (SvPVX (scalar));
		1770
		1771	SvPVX (scalar) = (char *)addr;
		1772	SvCUR_set (scalar, length);
		1773	SvLEN_set (scalar, 0);
		1774	SvPOK_only (scalar);
		1775
		1776	XSRETURN_YES;
		1777	}
		1778
		1779	void
		1780	munmap (SV *scalar)
		1781	CODE:
		1782	sv_unmagic (scalar, MMAP_MAGIC);
		1783
		1784	int
		1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1786	ALIAS:
		1787	mprotect = 1
		1788	CODE:
		1789	{
		1790	STRLEN svlen;
		1791	void *addr = SvPVbyte (scalar, svlen);
		1792	STRLEN len = SvUV (length);
		1793
		1794	if (offset < 0)
		1795	offset += svlen;
		1796
		1797	if (offset < 0 || offset > svlen)
		1798	croak ("offset outside of scalar");
		1799
		1800	if (!SvOK (length) || len + offset > svlen)
		1801	len = svlen - offset;
		1802
		1803	addr = (void *)(((intptr_t)addr) + offset);
		1804	eio_page_align (&addr, &len);
		1805
		1806	switch (ix)
		1807	{
		1808	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1809	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1810	}
		1811	}
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int
		1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1817	CODE:
		1818	{
		1819	STRLEN svlen;
		1820	void *addr = SvPVbyte (scalar, svlen);
		1821	size_t len = SvUV (length);
		1822
		1823	if (offset < 0)
		1824	offset += svlen;
		1825
		1826	if (offset < 0 || offset > svlen)
		1827	croak ("offset outside of scalar");
		1828
		1829	if (!SvOK (length) || len + offset > svlen)
		1830	len = svlen - offset;
		1831
		1832	addr = (void *)(((intptr_t)addr) + offset);
		1833	eio_page_align (&addr, &len);
		1834	#if _POSIX_MEMLOCK_RANGE
		1835	RETVAL = munlock (addr, len);
		1836	#else
		1837	RETVAL = EIO_ENOSYS ();
		1838	#endif
		1839	}
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	munlockall ()
		1845	CODE:
		1846	#if _POSIX_MEMLOCK
		1847	munlockall ();
		1848	#else
		1849	RETVAL = EIO_ENOSYS ();
		1850	#endif
		1851	OUTPUT:
		1852	RETVAL
		1853
		1854	int
		1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1856	CODE:
		1857	{
		1858	#if HAVE_LINUX_SPLICE
		1859	loff_t off_in_, off_out_;
		1860	RETVAL = splice (
		1861	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1862	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1863	length, flags
		1864	);
		1865	#else
		1866	RETVAL = EIO_ENOSYS ();
		1867	#endif
		1868	}
		1869	OUTPUT:
		1870	RETVAL
		1871
		1872	int
		1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1874	CODE:
		1875	#if HAVE_LINUX_SPLICE
		1876	RETVAL = tee (rfh, wfh, length, flags);
		1877	#else
		1878	RETVAL = EIO_ENOSYS ();
		1879	#endif
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int
		1884	pipesize (aio_rfd rfh, int new_size = -1)
		1885	PROTOTYPE: $;$
		1886	CODE:
		1887	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1888	if (new_size >= 0)
		1889	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1890	else
		1891	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1892	#else
		1893	errno = ENOSYS;
		1894	RETVAL = -1;
		1895	#endif
		1896	OUTPUT:
		1897	RETVAL
		1898
1193	void _on_next_submit (SV *cb)	1899	void _on_next_submit (SV *cb)
1194	CODE:	1900	CODE:
1195	SvREFCNT_dec (on_next_submit);	1901	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1902	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		1903
1198	PROTOTYPES: DISABLE	1904	PROTOTYPES: DISABLE
1199		1905
		1906	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1907
		1908	BOOT:
		1909	{
		1910	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1911	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1912	}
		1913
		1914	void
		1915	DESTROY (SV *self)
		1916	CODE:
		1917	{
		1918	aio_wd wd = SvAIO_WD (self);
		1919	#if HAVE_AT
		1920	{
		1921	SV *callback = &PL_sv_undef;
		1922	dREQ; /* clobbers next_pri :/ */
		1923	next_pri = req->pri; /* restore next_pri */
		1924	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1925	req->type = EIO_WD_CLOSE;
		1926	req->wd = wd;
		1927	REQ_SEND;
		1928	}
		1929	#else
		1930	eio_wd_close_sync (wd);
		1931	#endif
		1932	}
		1933
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1934	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		1935
1202	void	1936	void
1203	cancel (aio_req_ornot req)	1937	cancel (aio_req_ornot req)
1204	CODE:	1938	CODE:
1205	eio_cancel (req);	1939	eio_cancel (req);
1206		1940
1207	void	1941	void
1208	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1942	cb (aio_req_ornot req, SV *callback = NO_INIT)
1209	PPCODE:	1943	PPCODE:
1210	{	1944	{
1211	if (GIMME_V != G_VOID)	1945	if (GIMME_V != G_VOID)
1212	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1946	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1213		1947
1214	if (items > 1)	1948	if (items > 1)
1215	{	1949	{
1216	SV *cb_cv =get_cb (callback);	1950	SV *cb_cv = get_cb (callback);
1217		1951
1218	SvREFCNT_dec (req->callback);	1952	SvREFCNT_dec (req->callback);
1219	req->callback = SvREFCNT_inc (cb_cv);	1953	req->callback = SvREFCNT_inc (cb_cv);
1220	}	1954	}
1221	}	1955	}
…		…
1278	limit (aio_req grp, int limit)	2012	limit (aio_req grp, int limit)
1279	CODE:	2013	CODE:
1280	eio_grp_limit (grp, limit);	2014	eio_grp_limit (grp, limit);
1281		2015
1282	void	2016	void
1283	feed (aio_req grp, SV *callback=&PL_sv_undef)	2017	feed (aio_req grp, SV *callback = &PL_sv_undef)
1284	CODE:	2018	CODE:
1285	{	2019	{
1286	SvREFCNT_dec (grp->sv2);	2020	SvREFCNT_dec (grp->sv2);
1287	grp->sv2 = newSVsv (callback);	2021	grp->sv2 = newSVsv (callback);
1288	grp->feed = aio_grp_feed;	2022	grp->feed = aio_grp_feed;

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