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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 1.228 by root, Fri Jan 24 23:46:16 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	#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 (actually 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	if (!incmap->fm_mapped_extents)
		227	goto done;
		228
		229	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		230	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		231	errno = ENOMEM;
		232	if (!fiemap)
		233	return;
		234
		235	req->ptr1 = fiemap;
		236
		237	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		238	{
		239	struct fiemap_extent *e = incmap->fm_extents + count;
		240
		241	if (e->fe_logical + e->fe_length >= end_offset)
		242	goto done;
		243
		244	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		245
		246	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		247	goto done;
		248
		249	}
		250	}
		251
		252	done:
		253	req->result = 0;
		254
		255	#else
		256	errno = ENOSYS;
		257	#endif
		258	}
		259
		260	/*****************************************************************************/
		261
150	enum {	262	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	264	};
153		265
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
158		269
159	static SV *on_next_submit;	270	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	271	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	272	static int max_outstanding;
162		273
163	static s_epipe respipe;	274	static s_epipe respipe;
164		275
165	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
167		278
168	static void want_poll (void)	279	static void
		280	want_poll (void)
169	{	281	{
170	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	283	s_epipe_signal (&respipe);
172	}	284	}
173		285
174	static void done_poll (void)	286	static void
		287	done_poll (void)
175	{	288	{
176	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	290	s_epipe_drain (&respipe);
178	}	291	}
179		292
180	/* must be called at most once */	293	/* must be called at most once */
		294	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	295	req_sv (aio_req req, HV *stash)
182	{	296	{
183	if (!req->self)	297	if (!req->self)
184	{	298	{
185	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	301	}
188		302
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	304	}
191		305
192	static aio_req SvAIO_REQ (SV *sv)	306	static SV *
		307	newSVaio_wd (aio_wd wd)
		308	{
		309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		310	}
		311
		312	static aio_req
		313	SvAIO_REQ (SV *sv)
193	{	314	{
194	MAGIC *mg;	315	MAGIC *mg;
195		316
196	if (!SvROK (sv)	317	if (!SvROK (sv)
		318	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	319	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	320	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	321	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	322	croak ("object of class IO::AIO::REQ expected");
201		323
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		325
204	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	327	}
206		328
		329	static aio_wd
		330	SvAIO_WD (SV *sv)
		331	{
		332	if (!SvROK (sv)
		333	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		336
		337	return (aio_wd)(long)SvIVX (SvRV (sv));
		338	}
		339
		340	static void
207	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
208	{	342	{
209	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
210	{	344	{
211	dSP;	345	dSP;
212		346
…		…
220	FREETMPS;	354	FREETMPS;
221	LEAVE;	355	LEAVE;
222	}	356	}
223	}	357	}
224		358
		359	static void
225	static void req_submit (eio_req *req)	360	req_submit (eio_req *req)
226	{	361	{
227	eio_submit (req);	362	eio_submit (req);
228		363
229	if (expect_false (on_next_submit))	364	if (expect_false (on_next_submit))
230	{	365	{
…		…
237	PUTBACK;	372	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	373	call_sv (cb, G_DISCARD | G_EVAL);
239	}	374	}
240	}	375	}
241		376
		377	static int
242	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
243	{	379	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
248		382
249	if (!EIO_CANCELLED (req) && req->callback)	383	if (!EIO_CANCELLED (req) && req->callback)
250	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
251	ENTER;	389	ENTER;
252	SAVETMPS;	390	SAVETMPS;
253	PUSHMARK (SP);	391	PUSHMARK (SP);
254	EXTEND (SP, 1);	392	EXTEND (SP, 1);
255		393
		394	/* do not recreate the result IV from scratch each time */
		395	if (expect_true (sv_result_cache))
		396	{
		397	sv_result = sv_result_cache; sv_result_cache = 0;
		398	SvIV_set (sv_result, req->result);
		399	SvIOK_only (sv_result);
		400	}
		401	else
		402	{
		403	sv_result = newSViv (req->result);
		404	SvREADONLY_on (sv_result);
		405	}
		406
256	switch (req->type)	407	switch (req->type)
257	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
258	case EIO_READDIR:	413	case EIO_READDIR:
259	{	414	{
260	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
261		416
262	if (req->result >= 0)	417	if (req->result >= 0)
…		…
345		500
346	PUSHs (fh);	501	PUSHs (fh);
347	}	502	}
348	break;	503	break;
349		504
		505	case EIO_STATVFS:
		506	case EIO_FSTATVFS:
		507	{
		508	SV *rv = &PL_sv_undef;
		509
		510	#ifndef _WIN32
		511	if (req->result >= 0)
		512	{
		513	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		514	HV *hv = newHV ();
		515	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		516	* chooses to make it a struct.
		517	*/
		518	unsigned long fsid = 0;
		519	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		520
		521	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		522
		523	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		524	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		525	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		526	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		527	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		528	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		529	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		530	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		531	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		532	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		533	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		534	}
		535	#endif
		536
		537	PUSHs (rv);
		538	}
		539
		540	break;
		541
350	case EIO_GROUP:	542	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	543	req->int1 = 2; /* mark group as finished */
352		544
353	if (req->sv1)	545	if (req->sv1)
354	{	546	{
…		…
364	case EIO_NOP:	556	case EIO_NOP:
365	case EIO_BUSY:	557	case EIO_BUSY:
366	break;	558	break;
367		559
368	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
369	if (req->result > 0)	562	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	563	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	564	break;
372		565
373	case EIO_STAT:	566	case EIO_STAT:
374	case EIO_LSTAT:	567	case EIO_LSTAT:
375	case EIO_FSTAT:	568	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
377	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
		576	break;
		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	580	break;
381		581
382	case EIO_READ:	582	case EIO_READ:
383	{	583	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	584	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	586	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	587	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	588	PUSHs (sv_result);
389	}	589	}
390	break;	590	break;
391		591
392	case EIO_DUP2:	592	case EIO_CUSTOM:
		593	if (req->feed == fiemap)
		594	{
		595	#if HAVE_FIEMAP
		596	if (!req->result)
		597	{
		598	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		599
		600	if (fiemap->fm_extent_count)
		601	{
		602	AV *av = newAV ();
		603	int i;
		604
		605	while (fiemap->fm_mapped_extents)
		606	{
		607	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		608	AV *ext_av = newAV ();
		609
		610	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		611	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		612	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		613	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		614
		615	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		616	}
		617
		618	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		619	}
		620	else
		621	{
		622	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		623	PUSHs (sv_result);
		624	}
		625	}
		626	#endif
		627	}
		628	else
		629	PUSHs (sv_result);
		630	break;
		631
		632	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	633	if (req->result > 0)
394	req->result = 0;	634	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	635	/* FALLTHROUGH */
396		636
397	default:	637	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
399	break;	639	break;
400	}	640	}
401		641
402	errno = req->errorno;	642	errno = req->errorno;
403		643
404	PUTBACK;	644	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	646	SPAGAIN;
407		647
		648	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		649	SvREFCNT_dec (sv_result);
		650	else
		651	sv_result_cache = sv_result;
		652
408	FREETMPS;	653	FREETMPS;
409	LEAVE;	654	LEAVE;
410		655
411	PUTBACK;	656	PUTBACK;
412	}	657	}
413		658
414	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
415	}	660	}
416		661
		662	static void
417	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
418	{	664	{
419	if (req->self)	665	if (req->self)
420	{	666	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
423	}	669	}
424		670
425	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
428		676
429	Safefree (req);	677	free (req);
430	}	678	}
431		679
		680	static void
432	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
433	{	682	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
437	return;	684	return;
438		685
439	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	687	grp->sv2 = 0;
441		688
442	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
443	}	690	}
444		691
445	static void	692	static void ecb_cold
446	create_respipe (void)	693	create_respipe (void)
447	{	694	{
448	if (s_epipe_renew (&respipe))	695	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	696	croak ("IO::AIO: unable to initialize result pipe");
450	}	697	}
451		698
452	static void poll_wait (void)	699	static void
		700	poll_wait (void)
453	{	701	{
454	while (eio_nreqs ())	702	while (eio_nreqs ())
455	{	703	{
456	int size;	704	int size;
457		705
…		…
466		714
467	s_epipe_wait (&respipe);	715	s_epipe_wait (&respipe);
468	}	716	}
469	}	717	}
470		718
471	static int poll_cb (void)	719	static int
		720	poll_cb (void)
472	{	721	{
473	for (;;)	722	for (;;)
474	{	723	{
475	int res = eio_poll ();	724	int res = eio_poll ();
476		725
…		…
482		731
483	poll_wait ();	732	poll_wait ();
484	}	733	}
485	}	734	}
486		735
487	static void atfork_child (void)	736	static void ecb_cold
		737	reinit (void)
488	{	738	{
489	create_respipe ();	739	create_respipe ();
		740
		741	if (eio_init (want_poll, done_poll) < 0)
		742	croak ("IO::AIO: unable to initialise eio library");
490	}	743	}
		744
		745	/*****************************************************************************/
		746
		747	#if !_POSIX_MAPPED_FILES
		748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		749	# define munmap(addr,length) EIO_ENOSYS ()
		750	#endif
		751
		752	#if !_POSIX_MEMORY_PROTECTION
		753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		754	# define PROT_NONE 0
		755	# define PROT_WRITE 0
		756	# define MAP_PRIVATE 0
		757	# define MAP_SHARED 0
		758	# define MAP_FIXED 0
		759	#endif
		760
		761	#define MMAP_MAGIC PERL_MAGIC_ext
		762
		763	static int ecb_cold
		764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		765	{
		766	int old_errno = errno;
		767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		768	errno = old_errno;
		769
		770	mg->mg_obj = 0; /* just in case */
		771
		772	SvREADONLY_off (sv);
		773
		774	if (SvPVX (sv) != mg->mg_ptr)
		775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		776
		777	SvCUR_set (sv, 0);
		778	SvPVX (sv) = 0;
		779	SvOK_off (sv);
		780
		781	return 0;
		782	}
		783
		784	static MGVTBL mmap_vtbl = {
		785	0, 0, 0, 0, mmap_free
		786	};
		787
		788	/*****************************************************************************/
491		789
492	static SV *	790	static SV *
493	get_cb (SV *cb_sv)	791	get_cb (SV *cb_sv)
494	{	792	{
495	SvGETMAGIC (cb_sv);	793	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	795	}
498		796
		797	static aio_req ecb_noinline
		798	dreq (SV *callback)
		799	{
		800	SV *cb_cv;
		801	aio_req req;
		802	int req_pri = next_pri;
		803	next_pri = EIO_PRI_DEFAULT;
		804
		805	cb_cv = get_cb (callback);
		806
		807	req = calloc (sizeof (*req), 1);
		808	if (!req)
		809	croak ("out of memory during eio_req allocation");
		810
		811	req->callback = SvREFCNT_inc (cb_cv);
		812	req->pri = req_pri;
		813
		814	return req;
		815	}
		816
499	#define dREQ \	817	#define dREQ \
500	SV *cb_cv; \	818	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		819
514	#define REQ_SEND \	820	#define REQ_SEND \
515	PUTBACK; \	821	PUTBACK; \
516	req_submit (req); \	822	req_submit (req); \
517	SPAGAIN; \	823	SPAGAIN; \
518	\	824	\
519	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	826	XPUSHs (req_sv (req, aio_req_stash));
521		827
		828	ecb_inline void
		829	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		830	{
		831	if (expect_false (SvROK (path)))
		832	{
		833	SV *rv = SvRV (path);
		834	SV *wdob;
		835
		836	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		837	{
		838	path = AvARRAY (rv)[1];
		839	wdob = AvARRAY (rv)[0];
		840
		841	if (SvOK (wdob))
		842	{
		843	*wd = SvAIO_WD (wdob);
		844	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		845	}
		846	else
		847	*wd = EIO_INVALID_WD;
		848	}
		849	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		850	{
		851	*wd = (aio_wd)(long)SvIVX (rv);
		852	*wdsv = SvREFCNT_inc_NN (rv);
		853	*ptr = ".";
		854	return; /* path set to "." */
		855	}
		856	else
		857	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		858	}
		859
		860	*pathsv = newSVsv (path);
		861	*ptr = SvPVbyte_nolen (*pathsv);
		862	}
		863
		864	static void ecb_noinline
		865	req_set_path1 (aio_req req, SV *path)
		866	{
		867	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		868	}
		869
		870	static void ecb_noinline
		871	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		872	{
		873	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		874
		875	switch (SvTYPE (rv))
		876	{
		877	case SVt_PVIO:
		878	case SVt_PVLV:
		879	case SVt_PVGV:
		880	req->type = type_fh;
		881	req->sv1 = newSVsv (fh_or_path);
		882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		883	break;
		884
		885	default:
		886	req->type = type_path;
		887	req_set_path1 (req, fh_or_path);
		888	break;
		889	}
		890	}
		891
		892	XS(boot_IO__AIO) ecb_cold;
		893
522	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
523		895
524	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
525		897
526	BOOT:	898	BOOT:
527	{	899	{
528	static const struct {	900	static const struct {
529	const char *name;	901	const char *name;
530	IV iv;	902	IV iv;
531	} *civ, const_iv[] = {	903	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	904	# define const_niv(name, value) { # name, (IV) value },
		905	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	906	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	907
		908	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		909
535	const_iv (ENOSYS , ENOSYS)	910	const_iv (ENOSYS)
		911	const_iv (EXDEV)
		912	const_iv (EBADR)
		913
536	const_iv (O_RDONLY, O_RDONLY)	914	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	915	const_iv (O_WRONLY)
		916	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	917	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	918	const_iv (O_TRUNC)
540	#ifndef _WIN32	919	const_iv (O_EXCL)
		920	const_iv (O_APPEND)
		921
		922	const_iv (O_ASYNC)
		923	const_iv (O_DIRECT)
		924	const_iv (O_NOATIME)
		925
		926	const_iv (O_CLOEXEC)
		927	const_iv (O_NOCTTY)
		928	const_iv (O_NOFOLLOW)
		929	const_iv (O_NONBLOCK)
		930	const_iv (O_EXEC)
		931	const_iv (O_SEARCH)
		932	const_iv (O_DIRECTORY)
		933	const_iv (O_DSYNC)
		934	const_iv (O_RSYNC)
		935	const_iv (O_SYNC)
		936	const_iv (O_TTY_INIT)
		937
541	const_iv (S_IFIFO , S_IFIFO)	938	const_iv (S_IFIFO)
542	#endif	939	const_iv (S_IFCHR)
		940	const_iv (S_IFBLK)
		941	const_iv (S_IFLNK)
		942	const_iv (S_IFREG)
		943	const_iv (S_IFDIR)
		944	const_iv (S_IFWHT)
		945	const_iv (S_IFSOCK)
		946	const_iv (S_IFMT)
		947
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		954
		955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		960
		961	const_iv (ST_RDONLY)
		962	const_iv (ST_NOSUID)
		963	const_iv (ST_NODEV)
		964	const_iv (ST_NOEXEC)
		965	const_iv (ST_SYNCHRONOUS)
		966	const_iv (ST_MANDLOCK)
		967	const_iv (ST_WRITE)
		968	const_iv (ST_APPEND)
		969	const_iv (ST_IMMUTABLE)
		970	const_iv (ST_NOATIME)
		971	const_iv (ST_NODIRATIME)
		972	const_iv (ST_RELATIME)
		973
		974	const_iv (PROT_NONE)
		975	const_iv (PROT_EXEC)
		976	const_iv (PROT_READ)
		977	const_iv (PROT_WRITE)
		978
		979	/*const_iv (MAP_FIXED)*/
		980	const_iv (MAP_PRIVATE)
		981	const_iv (MAP_SHARED)
		982	const_iv (MAP_ANONYMOUS)
		983
		984	/* linuxish */
		985	const_iv (MAP_HUGETLB)
		986	const_iv (MAP_LOCKED)
		987	const_iv (MAP_NORESERVE)
		988	const_iv (MAP_POPULATE)
		989	const_iv (MAP_NONBLOCK)
		990
		991	const_iv (FIEMAP_FLAG_SYNC)
		992	const_iv (FIEMAP_FLAG_XATTR)
		993	const_iv (FIEMAP_FLAGS_COMPAT)
		994	const_iv (FIEMAP_EXTENT_LAST)
		995	const_iv (FIEMAP_EXTENT_UNKNOWN)
		996	const_iv (FIEMAP_EXTENT_DELALLOC)
		997	const_iv (FIEMAP_EXTENT_ENCODED)
		998	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		999	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1000	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1001	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1002	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1003	const_iv (FIEMAP_EXTENT_MERGED)
		1004	const_iv (FIEMAP_EXTENT_SHARED)
		1005
		1006	const_iv (SPLICE_F_MOVE)
		1007	const_iv (SPLICE_F_NONBLOCK)
		1008	const_iv (SPLICE_F_MORE)
		1009	const_iv (SPLICE_F_GIFT)
		1010
		1011	const_iv (SEEK_DATA)
		1012	const_iv (SEEK_HOLE)
		1013
		1014	/* libeio constants */
		1015	const_eio (SEEK_SET)
		1016	const_eio (SEEK_CUR)
		1017	const_eio (SEEK_END)
		1018
		1019	const_eio (MCL_FUTURE)
		1020	const_eio (MCL_CURRENT)
549		1021
550	const_eio (MS_ASYNC)	1022	const_eio (MS_ASYNC)
551	const_eio (MS_INVALIDATE)	1023	const_eio (MS_INVALIDATE)
552	const_eio (MS_SYNC)	1024	const_eio (MS_SYNC)
553		1025
554	const_eio (MT_MODIFY)	1026	const_eio (MT_MODIFY)
555		1027
556	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1028	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
557	const_eio (SYNC_FILE_RANGE_WRITE)	1029	const_eio (SYNC_FILE_RANGE_WRITE)
558	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1031
		1032	const_eio (FALLOC_FL_KEEP_SIZE)
		1033	const_eio (FALLOC_FL_PUNCH_HOLE)
559		1034
560	const_eio (READDIR_DENTS)	1035	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	1036	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	1037	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1038	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1049	};
575		1050
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1051	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1052	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1053	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1054	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
579		1055
580	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1056	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));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1058
583	create_respipe ();	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1060
585	if (eio_init (want_poll, done_poll) < 0)	1061	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	}	1062	}
591		1063
592	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
593	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1070	PROTOTYPE: $
595	CODE:	1071	CODE:
596	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
597		1073
598	void	1074	void
…		…
600	PROTOTYPE: $	1076	PROTOTYPE: $
601	CODE:	1077	CODE:
602	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
603		1079
604	void	1080	void
605	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1082	PROTOTYPE: $
607	CODE:	1083	CODE:
608	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
609		1085
610	void	1086	void
611	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1088	PROTOTYPE: $
613	CODE:	1089	CODE:
614	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
615		1091
616	void	1092	void
617	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1094	PROTOTYPE: $
619	CODE:	1095	CODE:
620	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
621		1097
622	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
623	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1106	PROTOTYPE: $
625	CODE:	1107	CODE:
626	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
627		1109
628	void	1110	void
		1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1112	PPCODE:
		1113	{
		1114	dREQ;
		1115
		1116	req->type = EIO_WD_OPEN;
		1117	req_set_path1 (req, pathname);
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
629	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
630	PROTOTYPE: $$$;$
631	PPCODE:	1124	PPCODE:
632	{	1125	{
633	dREQ;	1126	dREQ;
634		1127
635	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1130	req->int1 = flags;
639	req->int2 = mode;	1131	req->int2 = mode;
640		1132
641	REQ_SEND;	1133	REQ_SEND;
642	}	1134	}
643		1135
644	void	1136	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1138	ALIAS:
648	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1142	PPCODE:
651	{	1143	{
652	int fd = s_fileno_croak (fh, 0);	1144	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1145	dREQ;
654		1146
655	req->type = ix;	1147	req->type = ix;
656	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
657	req->int1 = fd;	1149	req->int1 = fd;
658		1150
659	REQ_SEND (req);	1151	REQ_SEND;
660	}	1152	}
661		1153
662	void	1154	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1156	PPCODE:
666	{	1157	{
667	int fd = s_fileno_croak (fh, 0);	1158	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1159	dREQ;
669		1160
670	req->type = EIO_SYNC_FILE_RANGE;	1161	req->type = EIO_SYNC_FILE_RANGE;
671	req->sv1 = newSVsv (fh);	1162	req->sv1 = newSVsv (fh);
672	req->int1 = fd;	1163	req->int1 = fd;
673	req->offs = offset;	1164	req->offs = offset;
674	req->size = nbytes;	1165	req->size = nbytes;
675	req->int2 = flags;	1166	req->int2 = flags;
676		1167
677	REQ_SEND (req);	1168	REQ_SEND;
		1169	}
		1170
		1171	void
		1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1173	PPCODE:
		1174	{
		1175	int fd = s_fileno_croak (fh, 0);
		1176	dREQ;
		1177
		1178	req->type = EIO_FALLOCATE;
		1179	req->sv1 = newSVsv (fh);
		1180	req->int1 = fd;
		1181	req->int2 = mode;
		1182	req->offs = offset;
		1183	req->size = len;
		1184
		1185	REQ_SEND;
678	}	1186	}
679		1187
680	void	1188	void
681	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
682	PROTOTYPE: $;$
683	PPCODE:	1190	PPCODE:
684	{	1191	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1193	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1194	dREQ;
688		1195
689	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
690	{	1197	{
691	int pipefd [2];	1198	int pipefd [2];
692		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
693	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1206	#endif
		1207	|| close (pipefd [1]) < 0
		1208	)
696	abort (); /*D*/	1209	abort (); /*D*/
697		1210
698	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
699	}	1212	}
700		1213
701	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1215	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1217	req->int2 = fd;
705		1218
706	REQ_SEND (req);	1219	REQ_SEND;
		1220	}
		1221
		1222	void
		1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1224	PPCODE:
		1225	{
		1226	int fd = s_fileno_croak (fh, 0);
		1227	dREQ;
		1228
		1229	req->type = EIO_SEEK;
		1230	req->sv1 = newSVsv (fh);
		1231	req->int1 = fd;
		1232	req->offs = SvVAL64 (offset);
		1233	req->int2 = whence;
		1234
		1235	REQ_SEND;
707	}	1236	}
708		1237
709	void	1238	void
710	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
711	ALIAS:	1240	ALIAS:
712	aio_read = EIO_READ	1241	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1243	PPCODE:
716	{	1244	{
717	STRLEN svlen;	1245	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
…		…
733	}	1261	}
734	else	1262	else
735	{	1263	{
736	/* read: check type and grow scalar as necessary */	1264	/* read: check type and grow scalar as necessary */
737	SvUPGRADE (data, SVt_PV);	1265	SvUPGRADE (data, SVt_PV);
		1266	if (SvLEN (data) >= SvCUR (data))
738	svptr = SvGROW (data, len + dataoffset + 1);	1267	svptr = SvGROW (data, len + dataoffset + 1);
		1268	else if (SvCUR (data) < len + dataoffset)
		1269	croak ("length + dataoffset outside of scalar, and cannot grow");
739	}	1270	}
740		1271
741	{	1272	{
742	dREQ;	1273	dREQ;
743		1274
…		…
759	REQ_SEND;	1290	REQ_SEND;
760	}	1291	}
761	}	1292	}
762		1293
763	void	1294	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
765	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
766	PPCODE:	1299	PPCODE:
767	{	1300	{
768	SV *data;
769	dREQ;	1301	dREQ;
770		1302
771	req->type = EIO_READLINK;	1303	req->type = ix;
772	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1305
775	REQ_SEND;	1306	REQ_SEND;
776	}	1307	}
777		1308
778	void	1309	void
779	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1311	PPCODE:
782	{	1312	{
783	int ifd = s_fileno_croak (in_fh , 0);	1313	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1314	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1315	dREQ;
786		1316
787	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
788	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
789	req->int1 = ofd;	1319	req->int1 = ofd;
…		…
795	REQ_SEND;	1325	REQ_SEND;
796	}	1326	}
797		1327
798	void	1328	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1330	PPCODE:
802	{	1331	{
803	int fd = s_fileno_croak (fh, 0);	1332	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1333	dREQ;
805		1334
806	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
807	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
808	req->int1 = fd;	1337	req->int1 = fd;
…		…
813	}	1342	}
814		1343
815	void	1344	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
817	ALIAS:	1346	ALIAS:
818	aio_stat = EIO_STAT	1347	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1348	aio_lstat = EIO_LSTAT
		1349	aio_statvfs = EIO_STATVFS
820	PPCODE:	1350	PPCODE:
821	{	1351	{
822	dREQ;	1352	dREQ;
823		1353
824	req->sv1 = newSVsv (fh_or_path);	1354	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		1355
837	REQ_SEND;	1356	REQ_SEND;
838	}	1357	}
		1358
		1359	UV
		1360	major (UV dev)
		1361	ALIAS:
		1362	minor = 1
		1363	CODE:
		1364	RETVAL = ix ? major (dev) : minor (dev);
		1365	OUTPUT:
		1366	RETVAL
		1367
		1368	UV
		1369	makedev (UV maj, UV min)
		1370	CODE:
		1371	RETVAL = makedev (maj, min);
		1372	OUTPUT:
		1373	RETVAL
839		1374
840	void	1375	void
841	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
842	PPCODE:	1377	PPCODE:
843	{	1378	{
844	dREQ;	1379	dREQ;
845		1380
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1383	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		1384
861	REQ_SEND;	1385	REQ_SEND;
862	}	1386	}
863		1387
864	void	1388	void
865	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
866	PPCODE:	1390	PPCODE:
867	{	1391	{
868	dREQ;	1392	dREQ;
869		1393
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1395	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		1396
884	REQ_SEND;	1397	REQ_SEND;
885	}	1398	}
886		1399
887	void	1400	void
888	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1401	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:	1402	PPCODE:
893	{	1403	{
894	dREQ;	1404	dREQ;
895		1405
896	req->int2 = mode;	1406	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1407	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		1408
910	REQ_SEND;	1409	REQ_SEND;
911	}	1410	}
912		1411
913	void	1412	void
…		…
916	{	1415	{
917	dREQ;	1416	dREQ;
918		1417
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1420	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		1421
934	REQ_SEND;	1422	REQ_SEND;
935	}	1423	}
936		1424
937	void	1425	void
…		…
939	PPCODE:	1427	PPCODE:
940	{	1428	{
941	dREQ;	1429	dREQ;
942		1430
943	req->type = EIO_READDIR;	1431	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;	1432	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1433
948	if (flags & EIO_READDIR_DENTS)	1434	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1435	req->int1 |= EIO_READDIR_CUSTOM2;
950		1436
		1437	req_set_path1 (req, pathname);
		1438
951	REQ_SEND;	1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
		1448	req->type = EIO_MKDIR;
		1449	req->int2 = mode;
		1450	req_set_path1 (req, pathname);
		1451
		1452	REQ_SEND;
952	}	1453	}
953		1454
954	void	1455	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1456	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
956	ALIAS:	1457	ALIAS:
…		…
960	PPCODE:	1461	PPCODE:
961	{	1462	{
962	dREQ;	1463	dREQ;
963		1464
964	req->type = ix;	1465	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1467
968	REQ_SEND;	1468	REQ_SEND;
969	}	1469	}
970		1470
971	void	1471	void
…		…
974	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
975	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
977	PPCODE:	1477	PPCODE:
978	{	1478	{
		1479	eio_wd wd2 = 0;
979	dREQ;	1480	dREQ;
980		1481
981	req->type = ix;	1482	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1486
987	REQ_SEND;	1487	REQ_SEND;
988	}	1488	}
989		1489
990	void	1490	void
…		…
992	PPCODE:	1492	PPCODE:
993	{	1493	{
994	dREQ;	1494	dREQ;
995		1495
996	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
1001		1500
1002	REQ_SEND;	1501	REQ_SEND;
1003	}	1502	}
1004		1503
1005	void	1504	void
1006	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1007	ALIAS:	1506	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1507	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1508	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1509	PPCODE:
1012	{	1510	{
1013	STRLEN svlen;	1511	STRLEN svlen;
		1512	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1513	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);
1016		1514
1017	if (offset < 0)	1515	if (offset < 0)
1018	offset += svlen;	1516	offset += svlen;
1019		1517
1020	if (offset < 0 || offset > svlen)	1518	if (offset < 0 || offset > svlen)
…		…
1025		1523
1026	{	1524	{
1027	dREQ;	1525	dREQ;
1028		1526
1029	req->type = ix;	1527	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1528	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1529	req->ptr2 = (char *)svptr + offset;
		1530	req->size = len;
1033	req->int1 = flags;	1531	req->int1 = flags;
1034		1532
1035	REQ_SEND;	1533	REQ_SEND;
1036	}	1534	}
1037	}	1535	}
1038		1536
1039	void	1537	void
		1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1539	PPCODE:
		1540	{
		1541	STRLEN svlen;
		1542	char *svptr = SvPVbyte (data, svlen);
		1543	UV len = SvUV (length);
		1544
		1545	if (offset < 0)
		1546	offset += svlen;
		1547
		1548	if (offset < 0 || offset > svlen)
		1549	croak ("offset outside of scalar");
		1550
		1551	if (!SvOK (length) || len + offset > svlen)
		1552	len = svlen - offset;
		1553
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MLOCK;
		1558	req->sv2 = SvREFCNT_inc (data);
		1559	req->ptr2 = (char *)svptr + offset;
		1560	req->size = len;
		1561
		1562	REQ_SEND;
		1563	}
		1564	}
		1565
		1566	void
		1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1568	PPCODE:
		1569	{
		1570	dREQ;
		1571
		1572	req->type = EIO_MLOCKALL;
		1573	req->int1 = flags;
		1574
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1580	PPCODE:
		1581	{
		1582	int fd = s_fileno_croak (fh, 0);
		1583	dREQ;
		1584
		1585	req->type = EIO_CUSTOM;
		1586	req->sv1 = newSVsv (fh);
		1587	req->int1 = fd;
		1588
		1589	req->feed = fiemap;
		1590	#if HAVE_FIEMAP
		1591	/* keep our fingers crossed that the next two types are 64 bit */
		1592	req->offs = start;
		1593	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1594	req->int2 = flags;
		1595	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1596	#endif
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
1041	PPCODE:	1603	PPCODE:
1042	{	1604	{
1043	dREQ;	1605	dREQ;
1044		1606
…		…
1048	REQ_SEND;	1610	REQ_SEND;
1049	}	1611	}
1050		1612
1051	void	1613	void
1052	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1615	PPCODE:
1055	{	1616	{
1056	dREQ;	1617	dREQ;
1057		1618
1058	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
1059		1620
		1621	PUTBACK;
1060	req_submit (req);	1622	req_submit (req);
		1623	SPAGAIN;
		1624
1061	XPUSHs (req_sv (req, aio_grp_stash));	1625	XPUSHs (req_sv (req, aio_grp_stash));
1062	}	1626	}
1063		1627
1064	void	1628	void
1065	aio_nop (SV *callback=&PL_sv_undef)	1629	aio_nop (SV *callback=&PL_sv_undef)
…		…
1075	REQ_SEND;	1639	REQ_SEND;
1076	}	1640	}
1077		1641
1078	int	1642	int
1079	aioreq_pri (int pri = 0)	1643	aioreq_pri (int pri = 0)
1080	PROTOTYPE: ;$
1081	CODE:	1644	CODE:
1082	RETVAL = next_pri;	1645	RETVAL = next_pri;
1083	if (items > 0)	1646	if (items > 0)
1084	{	1647	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1648	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1660	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1661	next_pri = nice;
1099		1662
1100	void	1663	void
1101	flush ()	1664	flush ()
1102	PROTOTYPE:
1103	CODE:	1665	CODE:
1104	while (eio_nreqs ())	1666	while (eio_nreqs ())
1105	{	1667	{
1106	poll_wait ();	1668	poll_wait ();
1107	poll_cb ();	1669	poll_cb ();
1108	}	1670	}
1109		1671
1110	int	1672	int
1111	poll()	1673	poll ()
1112	PROTOTYPE:
1113	CODE:	1674	CODE:
1114	poll_wait ();	1675	poll_wait ();
1115	RETVAL = poll_cb ();	1676	RETVAL = poll_cb ();
1116	OUTPUT:	1677	OUTPUT:
1117	RETVAL	1678	RETVAL
1118		1679
1119	int	1680	int
1120	poll_fileno()	1681	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1682	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1683	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1684	OUTPUT:
1125	RETVAL	1685	RETVAL
1126		1686
1127	int	1687	int
1128	poll_cb(...)	1688	poll_cb (...)
1129	PROTOTYPE:	1689	PROTOTYPE:
1130	CODE:	1690	CODE:
1131	RETVAL = poll_cb ();	1691	RETVAL = poll_cb ();
1132	OUTPUT:	1692	OUTPUT:
1133	RETVAL	1693	RETVAL
1134		1694
1135	void	1695	void
1136	poll_wait()	1696	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1697	CODE:
1139	poll_wait ();	1698	poll_wait ();
1140		1699
1141	int	1700	int
1142	nreqs()	1701	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1702	CODE:
1145	RETVAL = eio_nreqs ();	1703	RETVAL = eio_nreqs ();
1146	OUTPUT:	1704	OUTPUT:
1147	RETVAL	1705	RETVAL
1148		1706
1149	int	1707	int
1150	nready()	1708	nready ()
1151	PROTOTYPE:
1152	CODE:	1709	CODE:
1153	RETVAL = eio_nready ();	1710	RETVAL = eio_nready ();
1154	OUTPUT:	1711	OUTPUT:
1155	RETVAL	1712	RETVAL
1156		1713
1157	int	1714	int
1158	npending()	1715	npending ()
1159	PROTOTYPE:
1160	CODE:	1716	CODE:
1161	RETVAL = eio_npending ();	1717	RETVAL = eio_npending ();
1162	OUTPUT:	1718	OUTPUT:
1163	RETVAL	1719	RETVAL
1164		1720
1165	int	1721	int
1166	nthreads()	1722	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1723	CODE:
1169	RETVAL = eio_nthreads ();	1724	RETVAL = eio_nthreads ();
1170	OUTPUT:	1725	OUTPUT:
1171	RETVAL	1726	RETVAL
1172		1727
1173	int	1728	int
1174	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1729	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1175	PROTOTYPE: $$$$
1176	CODE:	1730	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1731	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1732	OUTPUT:
1183	RETVAL	1733	RETVAL
1184		1734
1185	ssize_t	1735	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1736	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1737	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1738	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1739	OUTPUT:
1191	RETVAL	1740	RETVAL
1192		1741
		1742	void
		1743	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1744	PPCODE:
		1745	sv_unmagic (scalar, MMAP_MAGIC);
		1746	{
		1747	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1748	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1749	if (addr == (void *)-1)
		1750	XSRETURN_NO;
		1751
		1752	sv_force_normal (scalar);
		1753
		1754	/* we store the length in mg_obj, as namlen is I32 :/ */
		1755	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1756	->mg_obj = (SV *)length;
		1757
		1758	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1759
		1760	if (!(prot & PROT_WRITE))
		1761	SvREADONLY_on (scalar);
		1762
		1763	if (SvLEN (scalar))
		1764	Safefree (SvPVX (scalar));
		1765
		1766	SvPVX (scalar) = (char *)addr;
		1767	SvCUR_set (scalar, length);
		1768	SvLEN_set (scalar, 0);
		1769	SvPOK_only (scalar);
		1770
		1771	XSRETURN_YES;
		1772	}
		1773
		1774	void
		1775	munmap (SV *scalar)
		1776	CODE:
		1777	sv_unmagic (scalar, MMAP_MAGIC);
		1778
		1779	int
		1780	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1781	ALIAS:
		1782	mprotect = 1
		1783	CODE:
		1784	{
		1785	STRLEN svlen;
		1786	void *addr = SvPVbyte (scalar, svlen);
		1787	size_t len = SvUV (length);
		1788
		1789	if (offset < 0)
		1790	offset += svlen;
		1791
		1792	if (offset < 0 || offset > svlen)
		1793	croak ("offset outside of scalar");
		1794
		1795	if (!SvOK (length) || len + offset > svlen)
		1796	len = svlen - offset;
		1797
		1798	addr = (void *)(((intptr_t)addr) + offset);
		1799	eio_page_align (&addr, &len);
		1800
		1801	switch (ix)
		1802	{
		1803	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1804	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1805	}
		1806	}
		1807	OUTPUT:
		1808	RETVAL
		1809
		1810	int
		1811	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1812	CODE:
		1813	{
		1814	STRLEN svlen;
		1815	void *addr = SvPVbyte (scalar, svlen);
		1816	size_t len = SvUV (length);
		1817
		1818	if (offset < 0)
		1819	offset += svlen;
		1820
		1821	if (offset < 0 || offset > svlen)
		1822	croak ("offset outside of scalar");
		1823
		1824	if (!SvOK (length) || len + offset > svlen)
		1825	len = svlen - offset;
		1826
		1827	addr = (void *)(((intptr_t)addr) + offset);
		1828	eio_page_align (&addr, &len);
		1829	#if _POSIX_MEMLOCK_RANGE
		1830	RETVAL = munlock (addr, len);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	}
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	munlockall ()
		1840	CODE:
		1841	#if _POSIX_MEMLOCK
		1842	munlockall ();
		1843	#else
		1844	RETVAL = EIO_ENOSYS ();
		1845	#endif
		1846	OUTPUT:
		1847	RETVAL
		1848
		1849	int
		1850	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1851	CODE:
		1852	{
		1853	#if HAVE_LINUX_SPLICE
		1854	loff_t off_in_, off_out_;
		1855	RETVAL = splice (
		1856	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1857	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1858	length, flags
		1859	);
		1860	#else
		1861	RETVAL = EIO_ENOSYS ();
		1862	#endif
		1863	}
		1864	OUTPUT:
		1865	RETVAL
		1866
		1867	int
		1868	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1869	CODE:
		1870	#if HAVE_LINUX_SPLICE
		1871	RETVAL = tee (rfh, wfh, length, flags);
		1872	#else
		1873	RETVAL = EIO_ENOSYS ();
		1874	#endif
		1875	OUTPUT:
		1876	RETVAL
		1877
		1878	int
		1879	pipesize (aio_rfd rfh, int new_size = -1)
		1880	PROTOTYPE: $;$
		1881	CODE:
		1882	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1883	if (new_size >= 0)
		1884	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1885	else
		1886	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1887	#else
		1888	errno = ENOSYS;
		1889	RETVAL = -1;
		1890	#endif
		1891	OUTPUT:
		1892	RETVAL
		1893
1193	void _on_next_submit (SV *cb)	1894	void _on_next_submit (SV *cb)
1194	CODE:	1895	CODE:
1195	SvREFCNT_dec (on_next_submit);	1896	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1897	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		1898
1198	PROTOTYPES: DISABLE	1899	PROTOTYPES: DISABLE
1199		1900
		1901	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1902
		1903	BOOT:
		1904	{
		1905	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1906	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1907	}
		1908
		1909	void
		1910	DESTROY (SV *self)
		1911	CODE:
		1912	{
		1913	aio_wd wd = SvAIO_WD (self);
		1914	#if HAVE_AT
		1915	{
		1916	SV *callback = &PL_sv_undef;
		1917	dREQ; /* clobbers next_pri :/ */
		1918	next_pri = req->pri; /* restore next_pri */
		1919	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1920	req->type = EIO_WD_CLOSE;
		1921	req->wd = wd;
		1922	REQ_SEND;
		1923	}
		1924	#else
		1925	eio_wd_close_sync (wd);
		1926	#endif
		1927	}
		1928
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1929	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		1930
1202	void	1931	void
1203	cancel (aio_req_ornot req)	1932	cancel (aio_req_ornot req)
1204	CODE:	1933	CODE:

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