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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.157 by root, Sat Jan 2 12:58:37 2010 UTC vs.
Revision 1.225 by root, Sat Dec 29 09:35:39 2012 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	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
20	/* perl namespace pollution */	33	/* perl namespace pollution */
21	#undef VERSION	34	#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		35
72	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	38	#undef readdir
75	#undef opendir	39	#undef opendir
76	#undef closedir	40	#undef closedir
77		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
79		78
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	79	#else
86	# define VAL64 NV	80
87	# define SvVAL64 SvNV	81	#include <sys/time.h>
88	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
89	#endif	89	#endif
90		90
91	/*****************************************************************************/	91	/*****************************************************************************/
92		92
93	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
103		103
104	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
107		107
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		109
110	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
111	SV *callback; \	111	SV *callback; \
112	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
113	STRLEN stroffset; \	114	STRLEN stroffset; \
114	SV *self;	115	SV *self;
115		116
116	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
117		118
		119	#include "libeio/config.h"
118	#include "libeio/eio.h"	120	#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		121
145	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
149		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#if PAGESIZE <= 0
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (atcually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		224	return;
		225
		226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
		258
150	enum {	259	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	261	};
153		262
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
158		266
159	static SV *on_next_submit;	267	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	269	static int max_outstanding;
162		270
163	static s_epipe respipe;	271	static s_epipe respipe;
164		272
165	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
167		275
168	static void want_poll (void)	276	static void
		277	want_poll (void)
169	{	278	{
170	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	280	s_epipe_signal (&respipe);
172	}	281	}
173		282
174	static void done_poll (void)	283	static void
		284	done_poll (void)
175	{	285	{
176	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	287	s_epipe_drain (&respipe);
178	}	288	}
179		289
180	/* must be called at most once */	290	/* must be called at most once */
		291	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	292	req_sv (aio_req req, HV *stash)
182	{	293	{
183	if (!req->self)	294	if (!req->self)
184	{	295	{
185	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	298	}
188		299
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	301	}
191		302
192	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
193	{	311	{
194	MAGIC *mg;	312	MAGIC *mg;
195		313
196	if (!SvROK (sv)	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	317	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	319	croak ("object of class IO::AIO::REQ expected");
201		320
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		322
204	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	324	}
206		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
207	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
208	{	339	{
209	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
210	{	341	{
211	dSP;	342	dSP;
212		343
…		…
220	FREETMPS;	351	FREETMPS;
221	LEAVE;	352	LEAVE;
222	}	353	}
223	}	354	}
224		355
		356	static void
225	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
226	{	358	{
227	eio_submit (req);	359	eio_submit (req);
228		360
229	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
230	{	362	{
…		…
237	PUTBACK;	369	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
239	}	371	}
240	}	372	}
241		373
		374	static int
242	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
243	{	376	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
248		379
249	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
250	{	381	{
		382	dSP;
		383	static SV *sv_result_cache; /* caches the result integer SV */
		384	SV *sv_result;
		385
251	ENTER;	386	ENTER;
252	SAVETMPS;	387	SAVETMPS;
253	PUSHMARK (SP);	388	PUSHMARK (SP);
254	EXTEND (SP, 1);	389	EXTEND (SP, 1);
255		390
		391	/* do not recreate the result IV from scratch each time */
		392	if (expect_true (sv_result_cache))
		393	{
		394	sv_result = sv_result_cache; sv_result_cache = 0;
		395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
		397	}
		398	else
		399	{
		400	sv_result = newSViv (req->result);
		401	SvREADONLY_on (sv_result);
		402	}
		403
256	switch (req->type)	404	switch (req->type)
257	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
258	case EIO_READDIR:	410	case EIO_READDIR:
259	{	411	{
260	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
261		413
262	if (req->result >= 0)	414	if (req->result >= 0)
…		…
345		497
346	PUSHs (fh);	498	PUSHs (fh);
347	}	499	}
348	break;	500	break;
349		501
		502	case EIO_STATVFS:
		503	case EIO_FSTATVFS:
		504	{
		505	SV *rv = &PL_sv_undef;
		506
		507	#ifndef _WIN32
		508	if (req->result >= 0)
		509	{
		510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		511	HV *hv = newHV ();
		512	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		513	* chooses to make it a struct.
		514	*/
		515	unsigned long fsid = 0;
		516	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		517
		518	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		519
		520	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		521	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		522	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		523	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		524	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		525	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		526	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		527	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		528	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		529	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		530	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		531	}
		532	#endif
		533
		534	PUSHs (rv);
		535	}
		536
		537	break;
		538
350	case EIO_GROUP:	539	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	540	req->int1 = 2; /* mark group as finished */
352		541
353	if (req->sv1)	542	if (req->sv1)
354	{	543	{
…		…
364	case EIO_NOP:	553	case EIO_NOP:
365	case EIO_BUSY:	554	case EIO_BUSY:
366	break;	555	break;
367		556
368	case EIO_READLINK:	557	case EIO_READLINK:
		558	case EIO_REALPATH:
369	if (req->result > 0)	559	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	560	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	561	break;
372		562
373	case EIO_STAT:	563	case EIO_STAT:
374	case EIO_LSTAT:	564	case EIO_LSTAT:
375	case EIO_FSTAT:	565	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	566	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		567
377	PL_laststatval = req->result;	568	if (!(PL_laststatval = req->result))
		569	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	570	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	571
		572	PUSHs (sv_result);
		573	break;
		574
		575	case EIO_SEEK:
		576	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	577	break;
381		578
382	case EIO_READ:	579	case EIO_READ:
383	{	580	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	581	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	582	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	583	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	584	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	585	PUSHs (sv_result);
389	}	586	}
390	break;	587	break;
391		588
392	case EIO_DUP2:	589	case EIO_CUSTOM:
		590	if (req->feed == fiemap)
		591	{
		592	#if HAVE_FIEMAP
		593	if (!req->result)
		594	{
		595	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		596
		597	if (fiemap->fm_extent_count)
		598	{
		599	AV *av = newAV ();
		600	int i;
		601
		602	while (fiemap->fm_mapped_extents)
		603	{
		604	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		605	AV *ext_av = newAV ();
		606
		607	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		608	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		609	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		610	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		611
		612	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		613	}
		614
		615	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		616	}
		617	else
		618	{
		619	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		620	PUSHs (sv_result);
		621	}
		622	}
		623	#endif
		624	}
		625	else
		626	PUSHs (sv_result);
		627	break;
		628
		629	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	630	if (req->result > 0)
394	req->result = 0;	631	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	632	/* FALLTHROUGH */
396		633
397	default:	634	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	635	PUSHs (sv_result);
399	break;	636	break;
400	}	637	}
401		638
402	errno = req->errorno;	639	errno = req->errorno;
403		640
404	PUTBACK;	641	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	642	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	643	SPAGAIN;
407		644
		645	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		646	SvREFCNT_dec (sv_result);
		647	else
		648	sv_result_cache = sv_result;
		649
408	FREETMPS;	650	FREETMPS;
409	LEAVE;	651	LEAVE;
410		652
411	PUTBACK;	653	PUTBACK;
412	}	654	}
413		655
414	return !!SvTRUE (ERRSV);	656	return !!SvTRUE (ERRSV);
415	}	657	}
416		658
		659	static void
417	static void req_destroy (aio_req req)	660	req_destroy (aio_req req)
418	{	661	{
419	if (req->self)	662	if (req->self)
420	{	663	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	664	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	665	SvREFCNT_dec (req->self);
423	}	666	}
424		667
425	SvREFCNT_dec (req->sv1);	668	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	669	SvREFCNT_dec (req->sv2);
		670	SvREFCNT_dec (req->sv3);
		671	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	672	SvREFCNT_dec (req->callback);
428		673
429	Safefree (req);	674	free (req);
430	}	675	}
431		676
		677	static void
432	static void req_cancel_subs (aio_req grp)	678	req_cancel_subs (aio_req grp)
433	{	679	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	680	if (grp->type != EIO_GROUP)
437	return;	681	return;
438		682
439	SvREFCNT_dec (grp->sv2);	683	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	684	grp->sv2 = 0;
441		685
442	eio_grp_cancel (grp);	686	eio_grp_cancel (grp);
443	}	687	}
444		688
445	static void	689	static void ecb_cold
446	create_respipe (void)	690	create_respipe (void)
447	{	691	{
448	if (s_epipe_renew (&respipe))	692	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	693	croak ("IO::AIO: unable to initialize result pipe");
450	}	694	}
451		695
452	static void poll_wait (void)	696	static void
		697	poll_wait (void)
453	{	698	{
454	while (eio_nreqs ())	699	while (eio_nreqs ())
455	{	700	{
456	int size;	701	int size;
457		702
…		…
466		711
467	s_epipe_wait (&respipe);	712	s_epipe_wait (&respipe);
468	}	713	}
469	}	714	}
470		715
471	static int poll_cb (void)	716	static int
		717	poll_cb (void)
472	{	718	{
473	for (;;)	719	for (;;)
474	{	720	{
475	int res = eio_poll ();	721	int res = eio_poll ();
476		722
…		…
482		728
483	poll_wait ();	729	poll_wait ();
484	}	730	}
485	}	731	}
486		732
487	static void atfork_child (void)	733	static void ecb_cold
		734	reinit (void)
488	{	735	{
489	create_respipe ();	736	create_respipe ();
		737
		738	if (eio_init (want_poll, done_poll) < 0)
		739	croak ("IO::AIO: unable to initialise eio library");
490	}	740	}
		741
		742	/*****************************************************************************/
		743
		744	#if !_POSIX_MAPPED_FILES
		745	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		746	# define munmap(addr,length) EIO_ENOSYS ()
		747	#endif
		748
		749	#if !_POSIX_MEMORY_PROTECTION
		750	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		751	# define PROT_NONE 0
		752	# define PROT_WRITE 0
		753	# define MAP_PRIVATE 0
		754	# define MAP_SHARED 0
		755	# define MAP_FIXED 0
		756	#endif
		757
		758	#define MMAP_MAGIC PERL_MAGIC_ext
		759
		760	static int ecb_cold
		761	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		762	{
		763	int old_errno = errno;
		764	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		765	errno = old_errno;
		766
		767	mg->mg_obj = 0; /* just in case */
		768
		769	SvREADONLY_off (sv);
		770
		771	if (SvPVX (sv) != mg->mg_ptr)
		772	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		773
		774	SvCUR_set (sv, 0);
		775	SvPVX (sv) = 0;
		776	SvOK_off (sv);
		777
		778	return 0;
		779	}
		780
		781	static MGVTBL mmap_vtbl = {
		782	0, 0, 0, 0, mmap_free
		783	};
		784
		785	/*****************************************************************************/
491		786
492	static SV *	787	static SV *
493	get_cb (SV *cb_sv)	788	get_cb (SV *cb_sv)
494	{	789	{
495	SvGETMAGIC (cb_sv);	790	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	791	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	792	}
498		793
		794	static aio_req ecb_noinline
		795	dreq (SV *callback)
		796	{
		797	SV *cb_cv;
		798	aio_req req;
		799	int req_pri = next_pri;
		800	next_pri = EIO_PRI_DEFAULT;
		801
		802	cb_cv = get_cb (callback);
		803
		804	req = calloc (sizeof (*req), 1);
		805	if (!req)
		806	croak ("out of memory during eio_req allocation");
		807
		808	req->callback = SvREFCNT_inc (cb_cv);
		809	req->pri = req_pri;
		810
		811	return req;
		812	}
		813
499	#define dREQ \	814	#define dREQ \
500	SV *cb_cv; \	815	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		816
514	#define REQ_SEND \	817	#define REQ_SEND \
515	PUTBACK; \	818	PUTBACK; \
516	req_submit (req); \	819	req_submit (req); \
517	SPAGAIN; \	820	SPAGAIN; \
518	\	821	\
519	if (GIMME_V != G_VOID) \	822	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	823	XPUSHs (req_sv (req, aio_req_stash));
521		824
		825	ecb_inline void
		826	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		827	{
		828	if (expect_false (SvROK (path)))
		829	{
		830	SV *rv = SvRV (path);
		831	SV *wdob;
		832
		833	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		834	{
		835	path = AvARRAY (rv)[1];
		836	wdob = AvARRAY (rv)[0];
		837
		838	if (SvOK (wdob))
		839	{
		840	*wd = SvAIO_WD (wdob);
		841	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		842	}
		843	else
		844	*wd = EIO_INVALID_WD;
		845	}
		846	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		847	{
		848	*wd = (aio_wd)(long)SvIVX (rv);
		849	*wdsv = SvREFCNT_inc_NN (rv);
		850	*ptr = ".";
		851	return; /* path set to "." */
		852	}
		853	else
		854	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		855	}
		856
		857	*pathsv = newSVsv (path);
		858	*ptr = SvPVbyte_nolen (*pathsv);
		859	}
		860
		861	static void ecb_noinline
		862	req_set_path1 (aio_req req, SV *path)
		863	{
		864	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		865	}
		866
		867	static void ecb_noinline
		868	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		869	{
		870	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		871
		872	switch (SvTYPE (rv))
		873	{
		874	case SVt_PVIO:
		875	case SVt_PVLV:
		876	case SVt_PVGV:
		877	req->type = type_fh;
		878	req->sv1 = newSVsv (fh_or_path);
		879	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		880	break;
		881
		882	default:
		883	req->type = type_path;
		884	req_set_path1 (req, fh_or_path);
		885	break;
		886	}
		887	}
		888
		889	XS(boot_IO__AIO) ecb_cold;
		890
522	MODULE = IO::AIO PACKAGE = IO::AIO	891	MODULE = IO::AIO PACKAGE = IO::AIO
523		892
524	PROTOTYPES: ENABLE	893	PROTOTYPES: ENABLE
525		894
526	BOOT:	895	BOOT:
527	{	896	{
528	static const struct {	897	static const struct {
529	const char *name;	898	const char *name;
530	IV iv;	899	IV iv;
531	} *civ, const_iv[] = {	900	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	901	# define const_niv(name, value) { # name, (IV) value },
		902	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	903	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	904
		905	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		906
535	const_iv (ENOSYS , ENOSYS)	907	const_iv (ENOSYS)
		908	const_iv (EXDEV)
		909	const_iv (EBADR)
		910
536	const_iv (O_RDONLY, O_RDONLY)	911	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	912	const_iv (O_WRONLY)
		913	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	914	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	915	const_iv (O_TRUNC)
540	#ifndef _WIN32	916	const_iv (O_EXCL)
		917	const_iv (O_APPEND)
		918
		919	const_iv (O_ASYNC)
		920	const_iv (O_DIRECT)
		921	const_iv (O_NOATIME)
		922
		923	const_iv (O_CLOEXEC)
		924	const_iv (O_NOCTTY)
		925	const_iv (O_NOFOLLOW)
		926	const_iv (O_NONBLOCK)
		927	const_iv (O_EXEC)
		928	const_iv (O_SEARCH)
		929	const_iv (O_DIRECTORY)
		930	const_iv (O_DSYNC)
		931	const_iv (O_RSYNC)
		932	const_iv (O_SYNC)
		933	const_iv (O_TTY_INIT)
		934
541	const_iv (S_IFIFO , S_IFIFO)	935	const_iv (S_IFIFO)
542	#endif	936	const_iv (S_IFCHR)
		937	const_iv (S_IFBLK)
		938	const_iv (S_IFLNK)
		939	const_iv (S_IFREG)
		940	const_iv (S_IFDIR)
		941	const_iv (S_IFWHT)
		942	const_iv (S_IFSOCK)
		943	const_iv (S_IFMT)
		944
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	945	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	946	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	947	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	948	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	949	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	950	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		951
		952	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		953	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		954	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		955	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		956	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		957
		958	const_iv (ST_RDONLY)
		959	const_iv (ST_NOSUID)
		960	const_iv (ST_NODEV)
		961	const_iv (ST_NOEXEC)
		962	const_iv (ST_SYNCHRONOUS)
		963	const_iv (ST_MANDLOCK)
		964	const_iv (ST_WRITE)
		965	const_iv (ST_APPEND)
		966	const_iv (ST_IMMUTABLE)
		967	const_iv (ST_NOATIME)
		968	const_iv (ST_NODIRATIME)
		969	const_iv (ST_RELATIME)
		970
		971	const_iv (PROT_NONE)
		972	const_iv (PROT_EXEC)
		973	const_iv (PROT_READ)
		974	const_iv (PROT_WRITE)
		975
		976	/*const_iv (MAP_FIXED)*/
		977	const_iv (MAP_PRIVATE)
		978	const_iv (MAP_SHARED)
		979	const_iv (MAP_ANONYMOUS)
		980
		981	/* linuxish */
		982	const_iv (MAP_HUGETLB)
		983	const_iv (MAP_LOCKED)
		984	const_iv (MAP_NORESERVE)
		985	const_iv (MAP_POPULATE)
		986	const_iv (MAP_NONBLOCK)
		987
		988	const_iv (FIEMAP_FLAG_SYNC)
		989	const_iv (FIEMAP_FLAG_XATTR)
		990	const_iv (FIEMAP_FLAGS_COMPAT)
		991	const_iv (FIEMAP_EXTENT_LAST)
		992	const_iv (FIEMAP_EXTENT_UNKNOWN)
		993	const_iv (FIEMAP_EXTENT_DELALLOC)
		994	const_iv (FIEMAP_EXTENT_ENCODED)
		995	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		996	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		997	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		998	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		999	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1000	const_iv (FIEMAP_EXTENT_MERGED)
		1001	const_iv (FIEMAP_EXTENT_SHARED)
		1002
		1003	const_iv (SPLICE_F_MOVE)
		1004	const_iv (SPLICE_F_NONBLOCK)
		1005	const_iv (SPLICE_F_MORE)
		1006	const_iv (SPLICE_F_GIFT)
		1007
		1008	const_iv (SEEK_DATA)
		1009	const_iv (SEEK_HOLE)
		1010
		1011	/* libeio constants */
		1012	const_eio (SEEK_SET)
		1013	const_eio (SEEK_CUR)
		1014	const_eio (SEEK_END)
		1015
		1016	const_eio (MCL_FUTURE)
		1017	const_eio (MCL_CURRENT)
		1018
		1019	const_eio (MS_ASYNC)
		1020	const_eio (MS_INVALIDATE)
		1021	const_eio (MS_SYNC)
		1022
		1023	const_eio (MT_MODIFY)
549		1024
550	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1025	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551	const_eio (SYNC_FILE_RANGE_WRITE)	1026	const_eio (SYNC_FILE_RANGE_WRITE)
552	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1027	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1028
		1029	const_eio (FALLOC_FL_KEEP_SIZE)
		1030	const_eio (FALLOC_FL_PUNCH_HOLE)
553		1031
554	const_eio (READDIR_DENTS)	1032	const_eio (READDIR_DENTS)
555	const_eio (READDIR_DIRS_FIRST)	1033	const_eio (READDIR_DIRS_FIRST)
556	const_eio (READDIR_STAT_ORDER)	1034	const_eio (READDIR_STAT_ORDER)
557	const_eio (READDIR_FOUND_UNKNOWN)	1035	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	};	1046	};
569		1047
570	aio_stash = gv_stashpv ("IO::AIO" , 1);	1048	aio_stash = gv_stashpv ("IO::AIO" , 1);
571	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1049	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1050	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1051	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
573		1052
574	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1053	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
575	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1054	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
576		1055
577	create_respipe ();	1056	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578		1057
579	if (eio_init (want_poll, done_poll) < 0)	1058	reinit ();
580	croak ("IO::AIO: unable to initialise eio library");
581
582	/* atfork child called in fifo order, so before eio's handler */
583	X_THREAD_ATFORK (0, 0, atfork_child);
584	}	1059	}
585		1060
586	void	1061	void
		1062	reinit ()
		1063	PROTOTYPE:
		1064
		1065	void
587	max_poll_reqs (int nreqs)	1066	max_poll_reqs (unsigned int nreqs)
588	PROTOTYPE: $	1067	PROTOTYPE: $
589	CODE:	1068	CODE:
590	eio_set_max_poll_reqs (nreqs);	1069	eio_set_max_poll_reqs (nreqs);
591		1070
592	void	1071	void
…		…
594	PROTOTYPE: $	1073	PROTOTYPE: $
595	CODE:	1074	CODE:
596	eio_set_max_poll_time (nseconds);	1075	eio_set_max_poll_time (nseconds);
597		1076
598	void	1077	void
599	min_parallel (int nthreads)	1078	min_parallel (unsigned int nthreads)
600	PROTOTYPE: $	1079	PROTOTYPE: $
601	CODE:	1080	CODE:
602	eio_set_min_parallel (nthreads);	1081	eio_set_min_parallel (nthreads);
603		1082
604	void	1083	void
605	max_parallel (int nthreads)	1084	max_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1085	PROTOTYPE: $
607	CODE:	1086	CODE:
608	eio_set_max_parallel (nthreads);	1087	eio_set_max_parallel (nthreads);
609		1088
610	void	1089	void
611	max_idle (int nthreads)	1090	max_idle (unsigned int nthreads)
612	PROTOTYPE: $	1091	PROTOTYPE: $
613	CODE:	1092	CODE:
614	eio_set_max_idle (nthreads);	1093	eio_set_max_idle (nthreads);
615		1094
616	void	1095	void
		1096	idle_timeout (unsigned int seconds)
		1097	PROTOTYPE: $
		1098	CODE:
		1099	eio_set_idle_timeout (seconds);
		1100
		1101	void
617	max_outstanding (int maxreqs)	1102	max_outstanding (unsigned int maxreqs)
618	PROTOTYPE: $	1103	PROTOTYPE: $
619	CODE:	1104	CODE:
620	max_outstanding = maxreqs;	1105	max_outstanding = maxreqs;
621		1106
622	void	1107	void
		1108	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1109	PPCODE:
		1110	{
		1111	dREQ;
		1112
		1113	req->type = EIO_WD_OPEN;
		1114	req_set_path1 (req, pathname);
		1115
		1116	REQ_SEND;
		1117	}
		1118
		1119	void
623	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1120	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
624	PROTOTYPE: $$$;$
625	PPCODE:	1121	PPCODE:
626	{	1122	{
627	dREQ;	1123	dREQ;
628		1124
629	req->type = EIO_OPEN;	1125	req->type = EIO_OPEN;
630	req->sv1 = newSVsv (pathname);	1126	req_set_path1 (req, pathname);
631	req->ptr1 = SvPVbyte_nolen (req->sv1);
632	req->int1 = flags;	1127	req->int1 = flags;
633	req->int2 = mode;	1128	req->int2 = mode;
634		1129
635	REQ_SEND;	1130	REQ_SEND;
636	}	1131	}
637		1132
638	void	1133	void
639	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
640	PROTOTYPE: $;$
641	ALIAS:	1135	ALIAS:
642	aio_fsync = EIO_FSYNC	1136	aio_fsync = EIO_FSYNC
643	aio_fdatasync = EIO_FDATASYNC	1137	aio_fdatasync = EIO_FDATASYNC
		1138	aio_syncfs = EIO_SYNCFS
644	PPCODE:	1139	PPCODE:
645	{	1140	{
646	int fd = s_fileno_croak (fh, 0);	1141	int fd = s_fileno_croak (fh, 0);
647	dREQ;	1142	dREQ;
648		1143
649	req->type = ix;	1144	req->type = ix;
650	req->sv1 = newSVsv (fh);	1145	req->sv1 = newSVsv (fh);
651	req->int1 = fd;	1146	req->int1 = fd;
652		1147
653	REQ_SEND (req);	1148	REQ_SEND;
654	}	1149	}
655		1150
656	void	1151	void
657	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1152	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
658	PROTOTYPE: $$$$;$
659	PPCODE:	1153	PPCODE:
660	{	1154	{
661	int fd = s_fileno_croak (fh, 0);	1155	int fd = s_fileno_croak (fh, 0);
662	dREQ;	1156	dREQ;
663		1157
664	req->type = EIO_SYNC_FILE_RANGE;	1158	req->type = EIO_SYNC_FILE_RANGE;
665	req->sv1 = newSVsv (fh);	1159	req->sv1 = newSVsv (fh);
666	req->int1 = fd;	1160	req->int1 = fd;
667	req->offs = offset;	1161	req->offs = offset;
668	req->size = nbytes;	1162	req->size = nbytes;
669	req->int2 = flags;	1163	req->int2 = flags;
670		1164
671	REQ_SEND (req);	1165	REQ_SEND;
		1166	}
		1167
		1168	void
		1169	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1170	PPCODE:
		1171	{
		1172	int fd = s_fileno_croak (fh, 0);
		1173	dREQ;
		1174
		1175	req->type = EIO_FALLOCATE;
		1176	req->sv1 = newSVsv (fh);
		1177	req->int1 = fd;
		1178	req->int2 = mode;
		1179	req->offs = offset;
		1180	req->size = len;
		1181
		1182	REQ_SEND;
672	}	1183	}
673		1184
674	void	1185	void
675	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1186	aio_close (SV *fh, SV *callback=&PL_sv_undef)
676	PROTOTYPE: $;$
677	PPCODE:	1187	PPCODE:
678	{	1188	{
679	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1189	static int close_fd = -1; /* dummy fd to close fds via dup2 */
680	int fd = s_fileno_croak (fh, 0);	1190	int fd = s_fileno_croak (fh, 0);
681	dREQ;	1191	dREQ;
682		1192
683	if (close_pipe < 0)	1193	if (expect_false (close_fd < 0))
684	{	1194	{
685	int pipefd [2];	1195	int pipefd [2];
686		1196
		1197	if (
		1198	#ifdef _WIN32
		1199	_pipe (pipefd, 1, _O_BINARY) < 0
		1200	#else
687	if (pipe (pipefd) < 0	1201	pipe (pipefd) < 0
688	|| close (pipefd [1]) < 0
689	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1202	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1203	#endif
		1204	|| close (pipefd [1]) < 0
		1205	)
690	abort (); /*D*/	1206	abort (); /*D*/
691		1207
692	close_pipe = pipefd [0];	1208	close_fd = pipefd [0];
693	}	1209	}
694		1210
695	req->type = EIO_DUP2;	1211	req->type = EIO_DUP2;
696	req->int1 = close_pipe;	1212	req->int1 = close_fd;
697	req->sv2 = newSVsv (fh);	1213	req->sv2 = newSVsv (fh);
698	req->int2 = fd;	1214	req->int2 = fd;
699		1215
700	REQ_SEND (req);	1216	REQ_SEND;
		1217	}
		1218
		1219	void
		1220	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1221	PPCODE:
		1222	{
		1223	int fd = s_fileno_croak (fh, 0);
		1224	dREQ;
		1225
		1226	req->type = EIO_SEEK;
		1227	req->sv1 = newSVsv (fh);
		1228	req->int1 = fd;
		1229	req->offs = SvVAL64 (offset);
		1230	req->int2 = whence;
		1231
		1232	REQ_SEND;
701	}	1233	}
702		1234
703	void	1235	void
704	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1236	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
705	ALIAS:	1237	ALIAS:
706	aio_read = EIO_READ	1238	aio_read = EIO_READ
707	aio_write = EIO_WRITE	1239	aio_write = EIO_WRITE
708	PROTOTYPE: $$$$$;$
709	PPCODE:	1240	PPCODE:
710	{	1241	{
711	STRLEN svlen;	1242	STRLEN svlen;
712	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1243	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
713	char *svptr = SvPVbyte (data, svlen);	1244	char *svptr = SvPVbyte (data, svlen);
…		…
727	}	1258	}
728	else	1259	else
729	{	1260	{
730	/* read: check type and grow scalar as necessary */	1261	/* read: check type and grow scalar as necessary */
731	SvUPGRADE (data, SVt_PV);	1262	SvUPGRADE (data, SVt_PV);
		1263	if (SvLEN (data) >= SvCUR (data))
732	svptr = SvGROW (data, len + dataoffset + 1);	1264	svptr = SvGROW (data, len + dataoffset + 1);
		1265	else if (SvCUR (data) < len + dataoffset)
		1266	croak ("length + dataoffset outside of scalar, and cannot grow");
733	}	1267	}
734		1268
735	{	1269	{
736	dREQ;	1270	dREQ;
737		1271
…		…
753	REQ_SEND;	1287	REQ_SEND;
754	}	1288	}
755	}	1289	}
756		1290
757	void	1291	void
758	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1292	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
759	PROTOTYPE: $$;$	1293	ALIAS:
		1294	aio_readlink = EIO_READLINK
		1295	aio_realpath = EIO_REALPATH
760	PPCODE:	1296	PPCODE:
761	{	1297	{
762	SV *data;
763	dREQ;	1298	dREQ;
764		1299
765	req->type = EIO_READLINK;	1300	req->type = ix;
766	req->sv1 = newSVsv (path);	1301	req_set_path1 (req, pathname);
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768		1302
769	REQ_SEND;	1303	REQ_SEND;
770	}	1304	}
771		1305
772	void	1306	void
773	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1307	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
774	PROTOTYPE: $$$$;$
775	PPCODE:	1308	PPCODE:
776	{	1309	{
777	int ifd = s_fileno_croak (in_fh , 0);	1310	int ifd = s_fileno_croak (in_fh , 0);
778	int ofd = s_fileno_croak (out_fh, 1);	1311	int ofd = s_fileno_croak (out_fh, 1);
779	dREQ;	1312	dREQ;
780		1313
781	req->type = EIO_SENDFILE;	1314	req->type = EIO_SENDFILE;
782	req->sv1 = newSVsv (out_fh);	1315	req->sv1 = newSVsv (out_fh);
783	req->int1 = ofd;	1316	req->int1 = ofd;
…		…
789	REQ_SEND;	1322	REQ_SEND;
790	}	1323	}
791		1324
792	void	1325	void
793	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1326	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1327	PPCODE:
796	{	1328	{
797	int fd = s_fileno_croak (fh, 0);	1329	int fd = s_fileno_croak (fh, 0);
798	dREQ;	1330	dREQ;
799		1331
800	req->type = EIO_READAHEAD;	1332	req->type = EIO_READAHEAD;
801	req->sv1 = newSVsv (fh);	1333	req->sv1 = newSVsv (fh);
802	req->int1 = fd;	1334	req->int1 = fd;
…		…
807	}	1339	}
808		1340
809	void	1341	void
810	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1342	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
811	ALIAS:	1343	ALIAS:
812	aio_stat = EIO_STAT	1344	aio_stat = EIO_STAT
813	aio_lstat = EIO_LSTAT	1345	aio_lstat = EIO_LSTAT
		1346	aio_statvfs = EIO_STATVFS
814	PPCODE:	1347	PPCODE:
815	{	1348	{
816	dREQ;	1349	dREQ;
817		1350
818	req->sv1 = newSVsv (fh_or_path);	1351	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
819
820	if (SvPOK (req->sv1))
821	{
822	req->type = ix;
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	}
825	else
826	{
827	req->type = EIO_FSTAT;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1352
831	REQ_SEND;	1353	REQ_SEND;
832	}	1354	}
		1355
		1356	UV
		1357	major (UV dev)
		1358	ALIAS:
		1359	minor = 1
		1360	CODE:
		1361	RETVAL = ix ? major (dev) : minor (dev);
		1362	OUTPUT:
		1363	RETVAL
		1364
		1365	UV
		1366	makedev (UV maj, UV min)
		1367	CODE:
		1368	RETVAL = makedev (maj, min);
		1369	OUTPUT:
		1370	RETVAL
833		1371
834	void	1372	void
835	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1373	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
836	PPCODE:	1374	PPCODE:
837	{	1375	{
838	dREQ;	1376	dREQ;
839		1377
840	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1378	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
841	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1379	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
842	req->sv1 = newSVsv (fh_or_path);	1380	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
843
844	if (SvPOK (req->sv1))
845	{
846	req->type = EIO_UTIME;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);
848	}
849	else
850	{
851	req->type = EIO_FUTIME;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1381
855	REQ_SEND;	1382	REQ_SEND;
856	}	1383	}
857		1384
858	void	1385	void
859	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1386	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
860	PPCODE:	1387	PPCODE:
861	{	1388	{
862	dREQ;	1389	dREQ;
863		1390
864	req->sv1 = newSVsv (fh_or_path);
865	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1391	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
866		1392	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_TRUNCATE;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FTRUNCATE;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1393
878	REQ_SEND;	1394	REQ_SEND;
879	}	1395	}
880		1396
881	void	1397	void
882	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1398	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
883	ALIAS:
884	aio_chmod = EIO_CHMOD
885	aio_mkdir = EIO_MKDIR
886	PPCODE:	1399	PPCODE:
887	{	1400	{
888	dREQ;	1401	dREQ;
889		1402
890	req->int2 = mode;	1403	req->int2 = mode;
891	req->sv1 = newSVsv (fh_or_path);	1404	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
892
893	if (SvPOK (req->sv1))
894	{
895	req->type = ix;
896	req->ptr1 = SvPVbyte_nolen (req->sv1);
897	}
898	else
899	{
900	req->type = EIO_FCHMOD;
901	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
902	}
903		1405
904	REQ_SEND;	1406	REQ_SEND;
905	}	1407	}
906		1408
907	void	1409	void
…		…
910	{	1412	{
911	dREQ;	1413	dREQ;
912		1414
913	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1415	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
914	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1416	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
915	req->sv1 = newSVsv (fh_or_path);	1417	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
916
917	if (SvPOK (req->sv1))
918	{
919	req->type = EIO_CHOWN;
920	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	}
922	else
923	{
924	req->type = EIO_FCHOWN;
925	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
926	}
927		1418
928	REQ_SEND;	1419	REQ_SEND;
929	}	1420	}
930		1421
931	void	1422	void
…		…
933	PPCODE:	1424	PPCODE:
934	{	1425	{
935	dREQ;	1426	dREQ;
936		1427
937	req->type = EIO_READDIR;	1428	req->type = EIO_READDIR;
938	req->sv1 = newSVsv (pathname);
939	req->ptr1 = SvPVbyte_nolen (req->sv1);
940	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1429	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
941		1430
942	if (flags & EIO_READDIR_DENTS)	1431	if (flags & EIO_READDIR_DENTS)
943	req->int1 |= EIO_READDIR_CUSTOM2;	1432	req->int1 |= EIO_READDIR_CUSTOM2;
944		1433
		1434	req_set_path1 (req, pathname);
		1435
945	REQ_SEND;	1436	REQ_SEND;
		1437	}
		1438
		1439	void
		1440	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1441	PPCODE:
		1442	{
		1443	dREQ;
		1444
		1445	req->type = EIO_MKDIR;
		1446	req->int2 = mode;
		1447	req_set_path1 (req, pathname);
		1448
		1449	REQ_SEND;
946	}	1450	}
947		1451
948	void	1452	void
949	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1453	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
950	ALIAS:	1454	ALIAS:
…		…
954	PPCODE:	1458	PPCODE:
955	{	1459	{
956	dREQ;	1460	dREQ;
957		1461
958	req->type = ix;	1462	req->type = ix;
959	req->sv1 = newSVsv (pathname);	1463	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1464
962	REQ_SEND;	1465	REQ_SEND;
963	}	1466	}
964		1467
965	void	1468	void
…		…
968	aio_link = EIO_LINK	1471	aio_link = EIO_LINK
969	aio_symlink = EIO_SYMLINK	1472	aio_symlink = EIO_SYMLINK
970	aio_rename = EIO_RENAME	1473	aio_rename = EIO_RENAME
971	PPCODE:	1474	PPCODE:
972	{	1475	{
		1476	eio_wd wd2 = 0;
973	dREQ;	1477	dREQ;
974		1478
975	req->type = ix;	1479	req->type = ix;
976	req->sv1 = newSVsv (oldpath);	1480	req_set_path1 (req, oldpath);
977	req->ptr1 = SvPVbyte_nolen (req->sv1);	1481	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
978	req->sv2 = newSVsv (newpath);	1482	req->int3 = (long)wd2;
979	req->ptr2 = SvPVbyte_nolen (req->sv2);
980		1483
981	REQ_SEND;	1484	REQ_SEND;
982	}	1485	}
983		1486
984	void	1487	void
…		…
986	PPCODE:	1489	PPCODE:
987	{	1490	{
988	dREQ;	1491	dREQ;
989		1492
990	req->type = EIO_MKNOD;	1493	req->type = EIO_MKNOD;
991	req->sv1 = newSVsv (pathname);
992	req->ptr1 = SvPVbyte_nolen (req->sv1);
993	req->int2 = (mode_t)mode;	1494	req->int2 = (mode_t)mode;
994	req->offs = dev;	1495	req->offs = dev;
		1496	req_set_path1 (req, pathname);
995		1497
996	REQ_SEND;	1498	REQ_SEND;
997	}	1499	}
998		1500
999	void	1501	void
		1502	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1503	ALIAS:
		1504	aio_mtouch = EIO_MTOUCH
		1505	aio_msync = EIO_MSYNC
		1506	PPCODE:
		1507	{
		1508	STRLEN svlen;
		1509	char *svptr = SvPVbyte (data, svlen);
		1510	UV len = SvUV (length);
		1511
		1512	if (offset < 0)
		1513	offset += svlen;
		1514
		1515	if (offset < 0 || offset > svlen)
		1516	croak ("offset outside of scalar");
		1517
		1518	if (!SvOK (length) || len + offset > svlen)
		1519	len = svlen - offset;
		1520
		1521	{
		1522	dREQ;
		1523
		1524	req->type = ix;
		1525	req->sv2 = SvREFCNT_inc (data);
		1526	req->ptr2 = (char *)svptr + offset;
		1527	req->size = len;
		1528	req->int1 = flags;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1536	PPCODE:
		1537	{
		1538	STRLEN svlen;
		1539	char *svptr = SvPVbyte (data, svlen);
		1540	UV len = SvUV (length);
		1541
		1542	if (offset < 0)
		1543	offset += svlen;
		1544
		1545	if (offset < 0 || offset > svlen)
		1546	croak ("offset outside of scalar");
		1547
		1548	if (!SvOK (length) || len + offset > svlen)
		1549	len = svlen - offset;
		1550
		1551	{
		1552	dREQ;
		1553
		1554	req->type = EIO_MLOCK;
		1555	req->sv2 = SvREFCNT_inc (data);
		1556	req->ptr2 = (char *)svptr + offset;
		1557	req->size = len;
		1558
		1559	REQ_SEND;
		1560	}
		1561	}
		1562
		1563	void
		1564	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1565	PPCODE:
		1566	{
		1567	dREQ;
		1568
		1569	req->type = EIO_MLOCKALL;
		1570	req->int1 = flags;
		1571
		1572	REQ_SEND;
		1573	}
		1574
		1575	void
		1576	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1577	PPCODE:
		1578	{
		1579	int fd = s_fileno_croak (fh, 0);
		1580	dREQ;
		1581
		1582	req->type = EIO_CUSTOM;
		1583	req->sv1 = newSVsv (fh);
		1584	req->int1 = fd;
		1585
		1586	req->feed = fiemap;
		1587	#if HAVE_FIEMAP
		1588	/* keep our fingers crossed that the next two types are 64 bit */
		1589	req->offs = start;
		1590	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1591	req->int2 = flags;
		1592	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1593	#endif
		1594
		1595	REQ_SEND;
		1596	}
		1597
		1598	void
1000	aio_busy (double delay, SV *callback=&PL_sv_undef)	1599	aio_busy (double delay, SV *callback=&PL_sv_undef)
1001	PPCODE:	1600	PPCODE:
1002	{	1601	{
1003	dREQ;	1602	dREQ;
1004		1603
…		…
1008	REQ_SEND;	1607	REQ_SEND;
1009	}	1608	}
1010		1609
1011	void	1610	void
1012	aio_group (SV *callback=&PL_sv_undef)	1611	aio_group (SV *callback=&PL_sv_undef)
1013	PROTOTYPE: ;$
1014	PPCODE:	1612	PPCODE:
1015	{	1613	{
1016	dREQ;	1614	dREQ;
1017		1615
1018	req->type = EIO_GROUP;	1616	req->type = EIO_GROUP;
…		…
1035	REQ_SEND;	1633	REQ_SEND;
1036	}	1634	}
1037		1635
1038	int	1636	int
1039	aioreq_pri (int pri = 0)	1637	aioreq_pri (int pri = 0)
1040	PROTOTYPE: ;$
1041	CODE:	1638	CODE:
1042	RETVAL = next_pri;	1639	RETVAL = next_pri;
1043	if (items > 0)	1640	if (items > 0)
1044	{	1641	{
1045	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1642	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1057	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1654	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058	next_pri = nice;	1655	next_pri = nice;
1059		1656
1060	void	1657	void
1061	flush ()	1658	flush ()
1062	PROTOTYPE:
1063	CODE:	1659	CODE:
1064	while (eio_nreqs ())	1660	while (eio_nreqs ())
1065	{	1661	{
1066	poll_wait ();	1662	poll_wait ();
1067	poll_cb ();	1663	poll_cb ();
1068	}	1664	}
1069		1665
1070	int	1666	int
1071	poll()	1667	poll ()
1072	PROTOTYPE:
1073	CODE:	1668	CODE:
1074	poll_wait ();	1669	poll_wait ();
1075	RETVAL = poll_cb ();	1670	RETVAL = poll_cb ();
1076	OUTPUT:	1671	OUTPUT:
1077	RETVAL	1672	RETVAL
1078		1673
1079	int	1674	int
1080	poll_fileno()	1675	poll_fileno ()
1081	PROTOTYPE:
1082	CODE:	1676	CODE:
1083	RETVAL = s_epipe_fd (&respipe);	1677	RETVAL = s_epipe_fd (&respipe);
1084	OUTPUT:	1678	OUTPUT:
1085	RETVAL	1679	RETVAL
1086		1680
1087	int	1681	int
1088	poll_cb(...)	1682	poll_cb (...)
1089	PROTOTYPE:	1683	PROTOTYPE:
1090	CODE:	1684	CODE:
1091	RETVAL = poll_cb ();	1685	RETVAL = poll_cb ();
1092	OUTPUT:	1686	OUTPUT:
1093	RETVAL	1687	RETVAL
1094		1688
1095	void	1689	void
1096	poll_wait()	1690	poll_wait ()
1097	PROTOTYPE:
1098	CODE:	1691	CODE:
1099	poll_wait ();	1692	poll_wait ();
1100		1693
1101	int	1694	int
1102	nreqs()	1695	nreqs ()
1103	PROTOTYPE:
1104	CODE:	1696	CODE:
1105	RETVAL = eio_nreqs ();	1697	RETVAL = eio_nreqs ();
1106	OUTPUT:	1698	OUTPUT:
1107	RETVAL	1699	RETVAL
1108		1700
1109	int	1701	int
1110	nready()	1702	nready ()
1111	PROTOTYPE:
1112	CODE:	1703	CODE:
1113	RETVAL = eio_nready ();	1704	RETVAL = eio_nready ();
1114	OUTPUT:	1705	OUTPUT:
1115	RETVAL	1706	RETVAL
1116		1707
1117	int	1708	int
1118	npending()	1709	npending ()
1119	PROTOTYPE:
1120	CODE:	1710	CODE:
1121	RETVAL = eio_npending ();	1711	RETVAL = eio_npending ();
1122	OUTPUT:	1712	OUTPUT:
1123	RETVAL	1713	RETVAL
1124		1714
1125	int	1715	int
1126	nthreads()	1716	nthreads ()
1127	PROTOTYPE:
1128	CODE:	1717	CODE:
1129	RETVAL = eio_nthreads ();	1718	RETVAL = eio_nthreads ();
1130	OUTPUT:	1719	OUTPUT:
1131	RETVAL	1720	RETVAL
1132		1721
1133	int	1722	int
1134	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1723	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135	PROTOTYPE: $$$$
1136	CODE:	1724	CODE:
1137	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138	RETVAL = posix_fadvise (fh, offset, length, advice);	1725	RETVAL = posix_fadvise (fh, offset, length, advice);
1139	#else
1140	RETVAL = errno = ENOSYS;
1141	#endif
1142	OUTPUT:	1726	OUTPUT:
1143	RETVAL	1727	RETVAL
1144		1728
1145	ssize_t	1729	IV
1146	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1730	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147	PROTOTYPE: $$$$
1148	CODE:	1731	CODE:
1149	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1732	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1150	OUTPUT:	1733	OUTPUT:
1151	RETVAL	1734	RETVAL
1152		1735
		1736	void
		1737	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1738	PPCODE:
		1739	sv_unmagic (scalar, MMAP_MAGIC);
		1740	{
		1741	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1742	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1743	if (addr == (void *)-1)
		1744	XSRETURN_NO;
		1745
		1746	sv_force_normal (scalar);
		1747
		1748	/* we store the length in mg_obj, as namlen is I32 :/ */
		1749	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1750	->mg_obj = (SV *)length;
		1751
		1752	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1753
		1754	if (!(prot & PROT_WRITE))
		1755	SvREADONLY_on (scalar);
		1756
		1757	if (SvLEN (scalar))
		1758	Safefree (SvPVX (scalar));
		1759
		1760	SvPVX (scalar) = (char *)addr;
		1761	SvCUR_set (scalar, length);
		1762	SvLEN_set (scalar, 0);
		1763	SvPOK_only (scalar);
		1764
		1765	XSRETURN_YES;
		1766	}
		1767
		1768	void
		1769	munmap (SV *scalar)
		1770	CODE:
		1771	sv_unmagic (scalar, MMAP_MAGIC);
		1772
		1773	int
		1774	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1775	ALIAS:
		1776	mprotect = 1
		1777	CODE:
		1778	{
		1779	STRLEN svlen;
		1780	void *addr = SvPVbyte (scalar, svlen);
		1781	size_t len = SvUV (length);
		1782
		1783	if (offset < 0)
		1784	offset += svlen;
		1785
		1786	if (offset < 0 || offset > svlen)
		1787	croak ("offset outside of scalar");
		1788
		1789	if (!SvOK (length) || len + offset > svlen)
		1790	len = svlen - offset;
		1791
		1792	addr = (void *)(((intptr_t)addr) + offset);
		1793	eio_page_align (&addr, &len);
		1794
		1795	switch (ix)
		1796	{
		1797	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1798	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1799	}
		1800	}
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1806	CODE:
		1807	{
		1808	STRLEN svlen;
		1809	void *addr = SvPVbyte (scalar, svlen);
		1810	size_t len = SvUV (length);
		1811
		1812	if (offset < 0)
		1813	offset += svlen;
		1814
		1815	if (offset < 0 || offset > svlen)
		1816	croak ("offset outside of scalar");
		1817
		1818	if (!SvOK (length) || len + offset > svlen)
		1819	len = svlen - offset;
		1820
		1821	addr = (void *)(((intptr_t)addr) + offset);
		1822	eio_page_align (&addr, &len);
		1823	#if _POSIX_MEMLOCK_RANGE
		1824	RETVAL = munlock (addr, len);
		1825	#else
		1826	RETVAL = EIO_ENOSYS ();
		1827	#endif
		1828	}
		1829	OUTPUT:
		1830	RETVAL
		1831
		1832	int
		1833	munlockall ()
		1834	CODE:
		1835	#if _POSIX_MEMLOCK
		1836	munlockall ();
		1837	#else
		1838	RETVAL = EIO_ENOSYS ();
		1839	#endif
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1845	CODE:
		1846	{
		1847	#if HAVE_LINUX_SPLICE
		1848	loff_t off_in_, off_out_;
		1849	RETVAL = splice (
		1850	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1851	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1852	length, flags
		1853	);
		1854	#else
		1855	RETVAL = EIO_ENOSYS ();
		1856	#endif
		1857	}
		1858	OUTPUT:
		1859	RETVAL
		1860
		1861	int
		1862	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1863	CODE:
		1864	#if HAVE_LINUX_SPLICE
		1865	RETVAL = tee (rfh, wfh, length, flags);
		1866	#else
		1867	RETVAL = EIO_ENOSYS ();
		1868	#endif
		1869	OUTPUT:
		1870	RETVAL
		1871
1153	void _on_next_submit (SV *cb)	1872	void _on_next_submit (SV *cb)
1154	CODE:	1873	CODE:
1155	SvREFCNT_dec (on_next_submit);	1874	SvREFCNT_dec (on_next_submit);
1156	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1875	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1157		1876
1158	PROTOTYPES: DISABLE	1877	PROTOTYPES: DISABLE
1159		1878
		1879	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1880
		1881	BOOT:
		1882	{
		1883	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1884	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1885	}
		1886
		1887	void
		1888	DESTROY (SV *self)
		1889	CODE:
		1890	{
		1891	aio_wd wd = SvAIO_WD (self);
		1892	#if HAVE_AT
		1893	{
		1894	SV *callback = &PL_sv_undef;
		1895	dREQ; /* clobbers next_pri :/ */
		1896	next_pri = req->pri; /* restore next_pri */
		1897	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1898	req->type = EIO_WD_CLOSE;
		1899	req->wd = wd;
		1900	REQ_SEND;
		1901	}
		1902	#else
		1903	eio_wd_close_sync (wd);
		1904	#endif
		1905	}
		1906
1160	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1907	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1161		1908
1162	void	1909	void
1163	cancel (aio_req_ornot req)	1910	cancel (aio_req_ornot req)
1164	CODE:	1911	CODE:

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