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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.158 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.229 by root, Fri Apr 11 05:19:40 2014 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 ((IV)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)
559		1038
560	const_eio (READDIR_DENTS)	1039	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	1040	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	1041	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1042	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1053	};
575		1054
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1055	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1056	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1057	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1058	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
579		1059
580	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1060	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));	1061	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1062
583	create_respipe ();	1063	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1064
585	if (eio_init (want_poll, done_poll) < 0)	1065	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	}	1066	}
591		1067
592	void	1068	void
		1069	reinit ()
		1070	PROTOTYPE:
		1071
		1072	void
593	max_poll_reqs (int nreqs)	1073	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1074	PROTOTYPE: $
595	CODE:	1075	CODE:
596	eio_set_max_poll_reqs (nreqs);	1076	eio_set_max_poll_reqs (nreqs);
597		1077
598	void	1078	void
…		…
600	PROTOTYPE: $	1080	PROTOTYPE: $
601	CODE:	1081	CODE:
602	eio_set_max_poll_time (nseconds);	1082	eio_set_max_poll_time (nseconds);
603		1083
604	void	1084	void
605	min_parallel (int nthreads)	1085	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1086	PROTOTYPE: $
607	CODE:	1087	CODE:
608	eio_set_min_parallel (nthreads);	1088	eio_set_min_parallel (nthreads);
609		1089
610	void	1090	void
611	max_parallel (int nthreads)	1091	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1092	PROTOTYPE: $
613	CODE:	1093	CODE:
614	eio_set_max_parallel (nthreads);	1094	eio_set_max_parallel (nthreads);
615		1095
616	void	1096	void
617	max_idle (int nthreads)	1097	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1098	PROTOTYPE: $
619	CODE:	1099	CODE:
620	eio_set_max_idle (nthreads);	1100	eio_set_max_idle (nthreads);
621		1101
622	void	1102	void
		1103	idle_timeout (unsigned int seconds)
		1104	PROTOTYPE: $
		1105	CODE:
		1106	eio_set_idle_timeout (seconds);
		1107
		1108	void
623	max_outstanding (int maxreqs)	1109	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1110	PROTOTYPE: $
625	CODE:	1111	CODE:
626	max_outstanding = maxreqs;	1112	max_outstanding = maxreqs;
627		1113
628	void	1114	void
		1115	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1116	PPCODE:
		1117	{
		1118	dREQ;
		1119
		1120	req->type = EIO_WD_OPEN;
		1121	req_set_path1 (req, pathname);
		1122
		1123	REQ_SEND;
		1124	}
		1125
		1126	void
629	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1127	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
630	PROTOTYPE: $$$;$
631	PPCODE:	1128	PPCODE:
632	{	1129	{
633	dREQ;	1130	dREQ;
634		1131
635	req->type = EIO_OPEN;	1132	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1133	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1134	req->int1 = flags;
639	req->int2 = mode;	1135	req->int2 = mode;
640		1136
641	REQ_SEND;	1137	REQ_SEND;
642	}	1138	}
643		1139
644	void	1140	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1141	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1142	ALIAS:
648	aio_fsync = EIO_FSYNC	1143	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1144	aio_fdatasync = EIO_FDATASYNC
		1145	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1146	PPCODE:
651	{	1147	{
652	int fd = s_fileno_croak (fh, 0);	1148	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1149	dREQ;
654		1150
655	req->type = ix;	1151	req->type = ix;
656	req->sv1 = newSVsv (fh);	1152	req->sv1 = newSVsv (fh);
657	req->int1 = fd;	1153	req->int1 = fd;
658		1154
659	REQ_SEND (req);	1155	REQ_SEND;
660	}	1156	}
661		1157
662	void	1158	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1159	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1160	PPCODE:
666	{	1161	{
667	int fd = s_fileno_croak (fh, 0);	1162	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1163	dREQ;
669		1164
670	req->type = EIO_SYNC_FILE_RANGE;	1165	req->type = EIO_SYNC_FILE_RANGE;
671	req->sv1 = newSVsv (fh);	1166	req->sv1 = newSVsv (fh);
672	req->int1 = fd;	1167	req->int1 = fd;
673	req->offs = offset;	1168	req->offs = offset;
674	req->size = nbytes;	1169	req->size = nbytes;
675	req->int2 = flags;	1170	req->int2 = flags;
676		1171
677	REQ_SEND (req);	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;
678	}	1190	}
679		1191
680	void	1192	void
681	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1193	aio_close (SV *fh, SV *callback=&PL_sv_undef)
682	PROTOTYPE: $;$
683	PPCODE:	1194	PPCODE:
684	{	1195	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1196	static int close_fd = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1197	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1198	dREQ;
688		1199
689	if (close_pipe < 0)	1200	if (expect_false (close_fd < 0))
690	{	1201	{
691	int pipefd [2];	1202	int pipefd [2];
692		1203
		1204	if (
		1205	#ifdef _WIN32
		1206	_pipe (pipefd, 1, _O_BINARY) < 0
		1207	#else
693	if (pipe (pipefd) < 0	1208	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| 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	)
696	abort (); /*D*/	1213	abort (); /*D*/
697		1214
698	close_pipe = pipefd [0];	1215	close_fd = pipefd [0];
699	}	1216	}
700		1217
701	req->type = EIO_DUP2;	1218	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1219	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1220	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1221	req->int2 = fd;
705		1222
706	REQ_SEND (req);	1223	REQ_SEND;
		1224	}
		1225
		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;
707	}	1240	}
708		1241
709	void	1242	void
710	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)
711	ALIAS:	1244	ALIAS:
712	aio_read = EIO_READ	1245	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1246	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1247	PPCODE:
716	{	1248	{
717	STRLEN svlen;	1249	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1250	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1251	char *svptr = SvPVbyte (data, svlen);
…		…
733	}	1265	}
734	else	1266	else
735	{	1267	{
736	/* read: check type and grow scalar as necessary */	1268	/* read: check type and grow scalar as necessary */
737	SvUPGRADE (data, SVt_PV);	1269	SvUPGRADE (data, SVt_PV);
		1270	if (SvLEN (data) >= SvCUR (data))
738	svptr = SvGROW (data, len + dataoffset + 1);	1271	svptr = SvGROW (data, len + dataoffset + 1);
		1272	else if (SvCUR (data) < len + dataoffset)
		1273	croak ("length + dataoffset outside of scalar, and cannot grow");
739	}	1274	}
740		1275
741	{	1276	{
742	dREQ;	1277	dREQ;
743		1278
…		…
759	REQ_SEND;	1294	REQ_SEND;
760	}	1295	}
761	}	1296	}
762		1297
763	void	1298	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1299	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
765	PROTOTYPE: $$;$	1300	ALIAS:
		1301	aio_readlink = EIO_READLINK
		1302	aio_realpath = EIO_REALPATH
766	PPCODE:	1303	PPCODE:
767	{	1304	{
768	SV *data;
769	dREQ;	1305	dREQ;
770		1306
771	req->type = EIO_READLINK;	1307	req->type = ix;
772	req->sv1 = newSVsv (path);	1308	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1309
775	REQ_SEND;	1310	REQ_SEND;
776	}	1311	}
777		1312
778	void	1313	void
779	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1314	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1315	PPCODE:
782	{	1316	{
783	int ifd = s_fileno_croak (in_fh , 0);	1317	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1318	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1319	dREQ;
786		1320
787	req->type = EIO_SENDFILE;	1321	req->type = EIO_SENDFILE;
788	req->sv1 = newSVsv (out_fh);	1322	req->sv1 = newSVsv (out_fh);
789	req->int1 = ofd;	1323	req->int1 = ofd;
…		…
795	REQ_SEND;	1329	REQ_SEND;
796	}	1330	}
797		1331
798	void	1332	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1333	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1334	PPCODE:
802	{	1335	{
803	int fd = s_fileno_croak (fh, 0);	1336	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1337	dREQ;
805		1338
806	req->type = EIO_READAHEAD;	1339	req->type = EIO_READAHEAD;
807	req->sv1 = newSVsv (fh);	1340	req->sv1 = newSVsv (fh);
808	req->int1 = fd;	1341	req->int1 = fd;
…		…
813	}	1346	}
814		1347
815	void	1348	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1349	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
817	ALIAS:	1350	ALIAS:
818	aio_stat = EIO_STAT	1351	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1352	aio_lstat = EIO_LSTAT
		1353	aio_statvfs = EIO_STATVFS
820	PPCODE:	1354	PPCODE:
821	{	1355	{
822	dREQ;	1356	dREQ;
823		1357
824	req->sv1 = newSVsv (fh_or_path);	1358	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		1359
837	REQ_SEND;	1360	REQ_SEND;
838	}	1361	}
		1362
		1363	UV
		1364	major (UV dev)
		1365	ALIAS:
		1366	minor = 1
		1367	CODE:
		1368	RETVAL = ix ? major (dev) : minor (dev);
		1369	OUTPUT:
		1370	RETVAL
		1371
		1372	UV
		1373	makedev (UV maj, UV min)
		1374	CODE:
		1375	RETVAL = makedev (maj, min);
		1376	OUTPUT:
		1377	RETVAL
839		1378
840	void	1379	void
841	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1380	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
842	PPCODE:	1381	PPCODE:
843	{	1382	{
844	dREQ;	1383	dREQ;
845		1384
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1385	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1386	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1387	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		1388
861	REQ_SEND;	1389	REQ_SEND;
862	}	1390	}
863		1391
864	void	1392	void
865	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1393	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
866	PPCODE:	1394	PPCODE:
867	{	1395	{
868	dREQ;	1396	dREQ;
869		1397
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1398	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1399	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		1400
884	REQ_SEND;	1401	REQ_SEND;
885	}	1402	}
886		1403
887	void	1404	void
888	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1405	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:	1406	PPCODE:
893	{	1407	{
894	dREQ;	1408	dREQ;
895		1409
896	req->int2 = mode;	1410	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1411	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		1412
910	REQ_SEND;	1413	REQ_SEND;
911	}	1414	}
912		1415
913	void	1416	void
…		…
916	{	1419	{
917	dREQ;	1420	dREQ;
918		1421
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1422	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1423	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1424	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		1425
934	REQ_SEND;	1426	REQ_SEND;
935	}	1427	}
936		1428
937	void	1429	void
…		…
939	PPCODE:	1431	PPCODE:
940	{	1432	{
941	dREQ;	1433	dREQ;
942		1434
943	req->type = EIO_READDIR;	1435	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;	1436	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1437
948	if (flags & EIO_READDIR_DENTS)	1438	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1439	req->int1 |= EIO_READDIR_CUSTOM2;
950		1440
		1441	req_set_path1 (req, pathname);
		1442
951	REQ_SEND;	1443	REQ_SEND;
		1444	}
		1445
		1446	void
		1447	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1448	PPCODE:
		1449	{
		1450	dREQ;
		1451
		1452	req->type = EIO_MKDIR;
		1453	req->int2 = mode;
		1454	req_set_path1 (req, pathname);
		1455
		1456	REQ_SEND;
952	}	1457	}
953		1458
954	void	1459	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1460	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
956	ALIAS:	1461	ALIAS:
…		…
960	PPCODE:	1465	PPCODE:
961	{	1466	{
962	dREQ;	1467	dREQ;
963		1468
964	req->type = ix;	1469	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1470	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1471
968	REQ_SEND;	1472	REQ_SEND;
969	}	1473	}
970		1474
971	void	1475	void
…		…
974	aio_link = EIO_LINK	1478	aio_link = EIO_LINK
975	aio_symlink = EIO_SYMLINK	1479	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1480	aio_rename = EIO_RENAME
977	PPCODE:	1481	PPCODE:
978	{	1482	{
		1483	eio_wd wd2 = 0;
979	dREQ;	1484	dREQ;
980		1485
981	req->type = ix;	1486	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1487	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1488	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1489	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1490
987	REQ_SEND;	1491	REQ_SEND;
988	}	1492	}
989		1493
990	void	1494	void
…		…
992	PPCODE:	1496	PPCODE:
993	{	1497	{
994	dREQ;	1498	dREQ;
995		1499
996	req->type = EIO_MKNOD;	1500	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1501	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1502	req->offs = dev;
		1503	req_set_path1 (req, pathname);
1001		1504
1002	REQ_SEND;	1505	REQ_SEND;
1003	}	1506	}
1004		1507
1005	void	1508	void
1006	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1509	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1007	ALIAS:	1510	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1511	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1512	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1513	PPCODE:
1012	{	1514	{
1013	STRLEN svlen;	1515	STRLEN svlen;
		1516	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1517	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);
1016		1518
1017	if (offset < 0)	1519	if (offset < 0)
1018	offset += svlen;	1520	offset += svlen;
1019		1521
1020	if (offset < 0 || offset > svlen)	1522	if (offset < 0 || offset > svlen)
…		…
1025		1527
1026	{	1528	{
1027	dREQ;	1529	dREQ;
1028		1530
1029	req->type = ix;	1531	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1532	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1533	req->ptr2 = (char *)svptr + offset;
		1534	req->size = len;
1033	req->int1 = flags;	1535	req->int1 = flags;
1034		1536
1035	REQ_SEND;	1537	REQ_SEND;
1036	}	1538	}
1037	}	1539	}
1038		1540
1039	void	1541	void
		1542	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1543	PPCODE:
		1544	{
		1545	STRLEN svlen;
		1546	char *svptr = SvPVbyte (data, svlen);
		1547	UV len = SvUV (length);
		1548
		1549	if (offset < 0)
		1550	offset += svlen;
		1551
		1552	if (offset < 0 || offset > svlen)
		1553	croak ("offset outside of scalar");
		1554
		1555	if (!SvOK (length) || len + offset > svlen)
		1556	len = svlen - offset;
		1557
		1558	{
		1559	dREQ;
		1560
		1561	req->type = EIO_MLOCK;
		1562	req->sv2 = SvREFCNT_inc (data);
		1563	req->ptr2 = (char *)svptr + offset;
		1564	req->size = len;
		1565
		1566	REQ_SEND;
		1567	}
		1568	}
		1569
		1570	void
		1571	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1572	PPCODE:
		1573	{
		1574	dREQ;
		1575
		1576	req->type = EIO_MLOCKALL;
		1577	req->int1 = flags;
		1578
		1579	REQ_SEND;
		1580	}
		1581
		1582	void
		1583	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1584	PPCODE:
		1585	{
		1586	int fd = s_fileno_croak (fh, 0);
		1587	dREQ;
		1588
		1589	req->type = EIO_CUSTOM;
		1590	req->sv1 = newSVsv (fh);
		1591	req->int1 = fd;
		1592
		1593	req->feed = fiemap;
		1594	#if HAVE_FIEMAP
		1595	/* keep our fingers crossed that the next two types are 64 bit */
		1596	req->offs = start;
		1597	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1598	req->int2 = flags;
		1599	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1600	#endif
		1601
		1602	REQ_SEND;
		1603	}
		1604
		1605	void
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1606	aio_busy (double delay, SV *callback=&PL_sv_undef)
1041	PPCODE:	1607	PPCODE:
1042	{	1608	{
1043	dREQ;	1609	dREQ;
1044		1610
…		…
1048	REQ_SEND;	1614	REQ_SEND;
1049	}	1615	}
1050		1616
1051	void	1617	void
1052	aio_group (SV *callback=&PL_sv_undef)	1618	aio_group (SV *callback=&PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1619	PPCODE:
1055	{	1620	{
1056	dREQ;	1621	dREQ;
1057		1622
1058	req->type = EIO_GROUP;	1623	req->type = EIO_GROUP;
1059		1624
		1625	PUTBACK;
1060	req_submit (req);	1626	req_submit (req);
		1627	SPAGAIN;
		1628
1061	XPUSHs (req_sv (req, aio_grp_stash));	1629	XPUSHs (req_sv (req, aio_grp_stash));
1062	}	1630	}
1063		1631
1064	void	1632	void
1065	aio_nop (SV *callback=&PL_sv_undef)	1633	aio_nop (SV *callback=&PL_sv_undef)
…		…
1075	REQ_SEND;	1643	REQ_SEND;
1076	}	1644	}
1077		1645
1078	int	1646	int
1079	aioreq_pri (int pri = 0)	1647	aioreq_pri (int pri = 0)
1080	PROTOTYPE: ;$
1081	CODE:	1648	CODE:
1082	RETVAL = next_pri;	1649	RETVAL = next_pri;
1083	if (items > 0)	1650	if (items > 0)
1084	{	1651	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1652	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1664	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1665	next_pri = nice;
1099		1666
1100	void	1667	void
1101	flush ()	1668	flush ()
1102	PROTOTYPE:
1103	CODE:	1669	CODE:
1104	while (eio_nreqs ())	1670	while (eio_nreqs ())
1105	{	1671	{
1106	poll_wait ();	1672	poll_wait ();
1107	poll_cb ();	1673	poll_cb ();
1108	}	1674	}
1109		1675
1110	int	1676	int
1111	poll()	1677	poll ()
1112	PROTOTYPE:
1113	CODE:	1678	CODE:
1114	poll_wait ();	1679	poll_wait ();
1115	RETVAL = poll_cb ();	1680	RETVAL = poll_cb ();
1116	OUTPUT:	1681	OUTPUT:
1117	RETVAL	1682	RETVAL
1118		1683
1119	int	1684	int
1120	poll_fileno()	1685	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1686	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1687	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1688	OUTPUT:
1125	RETVAL	1689	RETVAL
1126		1690
1127	int	1691	int
1128	poll_cb(...)	1692	poll_cb (...)
1129	PROTOTYPE:	1693	PROTOTYPE:
1130	CODE:	1694	CODE:
1131	RETVAL = poll_cb ();	1695	RETVAL = poll_cb ();
1132	OUTPUT:	1696	OUTPUT:
1133	RETVAL	1697	RETVAL
1134		1698
1135	void	1699	void
1136	poll_wait()	1700	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1701	CODE:
1139	poll_wait ();	1702	poll_wait ();
1140		1703
1141	int	1704	int
1142	nreqs()	1705	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1706	CODE:
1145	RETVAL = eio_nreqs ();	1707	RETVAL = eio_nreqs ();
1146	OUTPUT:	1708	OUTPUT:
1147	RETVAL	1709	RETVAL
1148		1710
1149	int	1711	int
1150	nready()	1712	nready ()
1151	PROTOTYPE:
1152	CODE:	1713	CODE:
1153	RETVAL = eio_nready ();	1714	RETVAL = eio_nready ();
1154	OUTPUT:	1715	OUTPUT:
1155	RETVAL	1716	RETVAL
1156		1717
1157	int	1718	int
1158	npending()	1719	npending ()
1159	PROTOTYPE:
1160	CODE:	1720	CODE:
1161	RETVAL = eio_npending ();	1721	RETVAL = eio_npending ();
1162	OUTPUT:	1722	OUTPUT:
1163	RETVAL	1723	RETVAL
1164		1724
1165	int	1725	int
1166	nthreads()	1726	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1727	CODE:
1169	RETVAL = eio_nthreads ();	1728	RETVAL = eio_nthreads ();
1170	OUTPUT:	1729	OUTPUT:
1171	RETVAL	1730	RETVAL
1172		1731
1173	int	1732	int
1174	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1733	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1175	PROTOTYPE: $$$$
1176	CODE:	1734	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1735	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1736	OUTPUT:
1183	RETVAL	1737	RETVAL
1184		1738
1185	ssize_t	1739	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1740	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1741	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1742	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1743	OUTPUT:
1191	RETVAL	1744	RETVAL
1192		1745
		1746	void
		1747	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1748	PPCODE:
		1749	sv_unmagic (scalar, MMAP_MAGIC);
		1750	{
		1751	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1752	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1753	if (addr == (void *)-1)
		1754	XSRETURN_NO;
		1755
		1756	sv_force_normal (scalar);
		1757
		1758	/* we store the length in mg_obj, as namlen is I32 :/ */
		1759	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1760	->mg_obj = (SV *)length;
		1761
		1762	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1763
		1764	if (!(prot & PROT_WRITE))
		1765	SvREADONLY_on (scalar);
		1766
		1767	if (SvLEN (scalar))
		1768	Safefree (SvPVX (scalar));
		1769
		1770	SvPVX (scalar) = (char *)addr;
		1771	SvCUR_set (scalar, length);
		1772	SvLEN_set (scalar, 0);
		1773	SvPOK_only (scalar);
		1774
		1775	XSRETURN_YES;
		1776	}
		1777
		1778	void
		1779	munmap (SV *scalar)
		1780	CODE:
		1781	sv_unmagic (scalar, MMAP_MAGIC);
		1782
		1783	int
		1784	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1785	ALIAS:
		1786	mprotect = 1
		1787	CODE:
		1788	{
		1789	STRLEN svlen;
		1790	void *addr = SvPVbyte (scalar, svlen);
		1791	size_t len = SvUV (length);
		1792
		1793	if (offset < 0)
		1794	offset += svlen;
		1795
		1796	if (offset < 0 || offset > svlen)
		1797	croak ("offset outside of scalar");
		1798
		1799	if (!SvOK (length) || len + offset > svlen)
		1800	len = svlen - offset;
		1801
		1802	addr = (void *)(((intptr_t)addr) + offset);
		1803	eio_page_align (&addr, &len);
		1804
		1805	switch (ix)
		1806	{
		1807	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1808	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1809	}
		1810	}
		1811	OUTPUT:
		1812	RETVAL
		1813
		1814	int
		1815	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1816	CODE:
		1817	{
		1818	STRLEN svlen;
		1819	void *addr = SvPVbyte (scalar, svlen);
		1820	size_t len = SvUV (length);
		1821
		1822	if (offset < 0)
		1823	offset += svlen;
		1824
		1825	if (offset < 0 || offset > svlen)
		1826	croak ("offset outside of scalar");
		1827
		1828	if (!SvOK (length) || len + offset > svlen)
		1829	len = svlen - offset;
		1830
		1831	addr = (void *)(((intptr_t)addr) + offset);
		1832	eio_page_align (&addr, &len);
		1833	#if _POSIX_MEMLOCK_RANGE
		1834	RETVAL = munlock (addr, len);
		1835	#else
		1836	RETVAL = EIO_ENOSYS ();
		1837	#endif
		1838	}
		1839	OUTPUT:
		1840	RETVAL
		1841
		1842	int
		1843	munlockall ()
		1844	CODE:
		1845	#if _POSIX_MEMLOCK
		1846	munlockall ();
		1847	#else
		1848	RETVAL = EIO_ENOSYS ();
		1849	#endif
		1850	OUTPUT:
		1851	RETVAL
		1852
		1853	int
		1854	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1855	CODE:
		1856	{
		1857	#if HAVE_LINUX_SPLICE
		1858	loff_t off_in_, off_out_;
		1859	RETVAL = splice (
		1860	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1861	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1862	length, flags
		1863	);
		1864	#else
		1865	RETVAL = EIO_ENOSYS ();
		1866	#endif
		1867	}
		1868	OUTPUT:
		1869	RETVAL
		1870
		1871	int
		1872	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1873	CODE:
		1874	#if HAVE_LINUX_SPLICE
		1875	RETVAL = tee (rfh, wfh, length, flags);
		1876	#else
		1877	RETVAL = EIO_ENOSYS ();
		1878	#endif
		1879	OUTPUT:
		1880	RETVAL
		1881
		1882	int
		1883	pipesize (aio_rfd rfh, int new_size = -1)
		1884	PROTOTYPE: $;$
		1885	CODE:
		1886	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1887	if (new_size >= 0)
		1888	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1889	else
		1890	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1891	#else
		1892	errno = ENOSYS;
		1893	RETVAL = -1;
		1894	#endif
		1895	OUTPUT:
		1896	RETVAL
		1897
1193	void _on_next_submit (SV *cb)	1898	void _on_next_submit (SV *cb)
1194	CODE:	1899	CODE:
1195	SvREFCNT_dec (on_next_submit);	1900	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1901	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		1902
1198	PROTOTYPES: DISABLE	1903	PROTOTYPES: DISABLE
1199		1904
		1905	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1906
		1907	BOOT:
		1908	{
		1909	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1910	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1911	}
		1912
		1913	void
		1914	DESTROY (SV *self)
		1915	CODE:
		1916	{
		1917	aio_wd wd = SvAIO_WD (self);
		1918	#if HAVE_AT
		1919	{
		1920	SV *callback = &PL_sv_undef;
		1921	dREQ; /* clobbers next_pri :/ */
		1922	next_pri = req->pri; /* restore next_pri */
		1923	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1924	req->type = EIO_WD_CLOSE;
		1925	req->wd = wd;
		1926	REQ_SEND;
		1927	}
		1928	#else
		1929	eio_wd_close_sync (wd);
		1930	#endif
		1931	}
		1932
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1933	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		1934
1202	void	1935	void
1203	cancel (aio_req_ornot req)	1936	cancel (aio_req_ornot req)
1204	CODE:	1937	CODE:

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