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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.148 by root, Wed Jun 17 01:14:48 2009 UTC vs.
Revision 1.196 by root, Tue Sep 27 00:41:51 2011 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		26
70	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	29	#undef readdir
73	#undef opendir	30	#undef opendir
74	#undef closedir	31	#undef closedir
		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
75		76
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	98	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	99	#define expect_true(expr) expect ((expr) != 0, 1)
99		100
100	/*****************************************************************************/	101	/*****************************************************************************/
101		102
102	static HV *stash;
103	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
106		106
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
109		108
110	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
111	SV *callback; \	110	SV *callback; \
112	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
113	STRLEN stroffset; \	113	STRLEN stroffset; \
114	SV *self;	114	SV *self;
115		115
116	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
117		117
		118	#include "libeio/config.h"
118	#include "libeio/eio.h"	119	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	#endif
123
124	#ifndef POSIX_FADV_SEQUENTIAL
125	# define POSIX_FADV_SEQUENTIAL 0
126	#endif
127
128	#ifndef POSIX_FADV_RANDOM
129	# define POSIX_FADV_RANDOM 0
130	#endif
131
132	#ifndef POSIX_FADV_NOREUSE
133	# define POSIX_FADV_NOREUSE 0
134	#endif
135
136	#ifndef POSIX_FADV_WILLNEED
137	# define POSIX_FADV_WILLNEED 0
138	#endif
139
140	#ifndef POSIX_FADV_DONTNEED
141	# define POSIX_FADV_DONTNEED 0
142	#endif
143		120
144	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
145	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
146	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
147	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
148		125
		126	#include "libeio/eio.c"
		127
		128	/* Linux/others */
		129	#ifndef O_ASYNC
		130	# define O_ASYNC 0
		131	#endif
		132	#ifndef O_DIRECT
		133	# define O_DIRECT 0
		134	#endif
		135	#ifndef O_NOATIME
		136	# define O_NOATIME 0
		137	#endif
		138
		139	/* POSIX */
		140	#ifndef O_CLOEXEC
		141	# define O_CLOEXEC 0
		142	#endif
		143	#ifndef O_NOFOLLOW
		144	# define O_NOFOLLOW 0
		145	#endif
		146	#ifndef O_NOCTTY
		147	# define O_NOCTTY 0
		148	#endif
		149	#ifndef O_NONBLOCK
		150	# define O_NONBLOCK 0
		151	#endif
		152	#ifndef O_EXEC
		153	# define O_EXEC 0
		154	#endif
		155	#ifndef O_SEARCH
		156	# define O_SEARCH 0
		157	#endif
		158	#ifndef O_DIRECTORY
		159	# define O_DIRECTORY 0
		160	#endif
		161	#ifndef O_DSYNC
		162	# define O_DSYNC 0
		163	#endif
		164	#ifndef O_RSYNC
		165	# define O_RSYNC 0
		166	#endif
		167	#ifndef O_SYNC
		168	# define O_SYNC 0
		169	#endif
		170	#ifndef O_TTY_INIT
		171	# define O_TTY_INIT 0
		172	#endif
		173
		174	#ifndef POSIX_FADV_NORMAL
		175	# define POSIX_FADV_NORMAL 0
		176	#endif
		177	#ifndef POSIX_FADV_SEQUENTIAL
		178	# define POSIX_FADV_SEQUENTIAL 0
		179	#endif
		180	#ifndef POSIX_FADV_RANDOM
		181	# define POSIX_FADV_RANDOM 0
		182	#endif
		183	#ifndef POSIX_FADV_NOREUSE
		184	# define POSIX_FADV_NOREUSE 0
		185	#endif
		186	#ifndef POSIX_FADV_WILLNEED
		187	# define POSIX_FADV_WILLNEED 0
		188	#endif
		189	#ifndef POSIX_FADV_DONTNEED
		190	# define POSIX_FADV_DONTNEED 0
		191	#endif
		192
		193	#if !HAVE_POSIX_FADVISE
		194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		195	#endif
		196
		197	#ifndef POSIX_MADV_NORMAL
		198	# define POSIX_MADV_NORMAL 0
		199	#endif
		200	#ifndef POSIX_MADV_SEQUENTIAL
		201	# define POSIX_MADV_SEQUENTIAL 0
		202	#endif
		203	#ifndef POSIX_MADV_RANDOM
		204	# define POSIX_MADV_RANDOM 0
		205	#endif
		206	#ifndef POSIX_MADV_WILLNEED
		207	# define POSIX_MADV_WILLNEED 0
		208	#endif
		209	#ifndef POSIX_MADV_DONTNEED
		210	# define POSIX_MADV_DONTNEED 0
		211	#endif
		212
		213	#if !HAVE_POSIX_MADVISE
		214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		215	#endif
		216
		217	#ifndef PROT_NONE
		218	# define PROT_NONE 0
		219	#endif
		220	#ifndef PROT_READ
		221	# define PROT_READ 0
		222	#endif
		223	#ifndef PROT_WRITE
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_EXEC
		227	# define PROT_EXEC 0
		228	#endif
		229
		230	#ifndef ST_RDONLY
		231	# define ST_RDONLY 0
		232	#endif
		233	#ifndef ST_NOSUID
		234	# define ST_NOSUID 0
		235	#endif
		236	#ifndef ST_NODEV
		237	# define ST_NODEV 0
		238	#endif
		239	#ifndef ST_NOEXEC
		240	# define ST_NOEXEC 0
		241	#endif
		242	#ifndef ST_SYNCHRONOUS
		243	# define ST_SYNCHRONOUS 0
		244	#endif
		245	#ifndef ST_MANDLOCK
		246	# define ST_MANDLOCK 0
		247	#endif
		248	#ifndef ST_WRITE
		249	# define ST_WRITE 0
		250	#endif
		251	#ifndef ST_APPEND
		252	# define ST_APPEND 0
		253	#endif
		254	#ifndef ST_IMMUTABLE
		255	# define ST_IMMUTABLE 0
		256	#endif
		257	#ifndef ST_NOATIME
		258	# define ST_NOATIME 0
		259	#endif
		260	#ifndef ST_NODIRATIME
		261	# define ST_NODIRATIME 0
		262	#endif
		263	#ifndef ST_RELATIME
		264	# define ST_RELATIME 0
		265	#endif
		266
		267	#ifndef S_IFIFO
		268	# define S_IFIFO 0
		269	#endif
		270	#ifndef S_IFCHR
		271	# define S_IFCHR 0
		272	#endif
		273	#ifndef S_IFBLK
		274	# define S_IFBLK 0
		275	#endif
		276	#ifndef S_IFLNK
		277	# define S_IFLNK 0
		278	#endif
		279	#ifndef S_IFREG
		280	# define S_IFREG 0
		281	#endif
		282	#ifndef S_IFDIR
		283	# define S_IFDIR 0
		284	#endif
		285	#ifndef S_IFWHT
		286	# define S_IFWHT 0
		287	#endif
		288	#ifndef S_IFSOCK
		289	# define S_IFSOCK 0
		290	#endif
		291
		292	#ifndef MAP_ANONYMOUS
		293	# ifdef MAP_ANON
		294	# define MAP_ANONYMOUS MAP_ANON
		295	# else
		296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		297	# endif
		298	#endif
		299	#ifndef MAP_HUGETLB
		300	# define MAP_HUGETLB 0
		301	#endif
		302	#ifndef MAP_LOCKED
		303	# define MAP_LOCKED 0
		304	#endif
		305	#ifndef MAP_NORESERVE
		306	# define MAP_NORESERVE 0
		307	#endif
		308	#ifndef MAP_POPULATE
		309	# define MAP_POPULATE 0
		310	#endif
		311	#ifndef MAP_NONBLOCK
		312	# define MAP_NONBLOCK 0
		313	#endif
		314
		315	#ifndef makedev
		316	# define makedev(maj,min) (((maj) << 8) | (min))
		317	#endif
		318	#ifndef major
		319	# define major(dev) ((dev) >> 8)
		320	#endif
		321	#ifndef minor
		322	# define minor(dev) ((dev) & 0xff)
		323	#endif
		324
		325	#ifndef PAGESIZE
		326	# define PAGESIZE sysconf (_SC_PAGESIZE)
		327	#endif
		328
149	enum {	329	enum {
150	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
151	};	331	};
152		332
153	#include "libeio/eio.c"
154
155	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
156	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
		335	typedef eio_wd aio_wd;
157		336
158	static SV *on_next_submit;	337	static SV *on_next_submit;
159	static int next_pri = EIO_PRI_DEFAULT;	338	static int next_pri = EIO_PRI_DEFAULT;
160	static int max_outstanding;	339	static int max_outstanding;
161		340
162	static int respipe_osf [2], respipe [2] = { -1, -1 };	341	static s_epipe respipe;
163		342
164	static void req_destroy (aio_req req);	343	static void req_destroy (aio_req req);
165	static void req_cancel (aio_req req);	344	static void req_cancel (aio_req req);
166		345
167	static void want_poll (void)	346	static void want_poll (void)
168	{	347	{
169	/* write a dummy byte to the pipe so fh becomes ready */	348	/* write a dummy byte to the pipe so fh becomes ready */
170	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	349	s_epipe_signal (&respipe);
171	}	350	}
172		351
173	static void done_poll (void)	352	static void done_poll (void)
174	{	353	{
175	/* read any signals sent by the worker threads */	354	/* read any signals sent by the worker threads */
176	char buf [4];	355	s_epipe_drain (&respipe);
177	while (respipe_read (respipe [0], buf, 4) == 4)
178	;
179	}	356	}
180		357
181	/* must be called at most once */	358	/* must be called at most once */
182	static SV *req_sv (aio_req req, const char *klass)	359	static SV *req_sv (aio_req req, HV *stash)
183	{	360	{
184	if (!req->self)	361	if (!req->self)
185	{	362	{
186	req->self = (SV *)newHV ();	363	req->self = (SV *)newHV ();
187	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	364	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
188	}	365	}
189		366
190	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	367	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
		368	}
		369
		370	static SV *
		371	newSVaio_wd (aio_wd wd)
		372	{
		373	return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
191	}	374	}
192		375
193	static aio_req SvAIO_REQ (SV *sv)	376	static aio_req SvAIO_REQ (SV *sv)
194	{	377	{
195	MAGIC *mg;	378	MAGIC *mg;
196		379
197	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	380	if (!SvROK (sv)
		381	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		382	&& SvSTASH (SvRV (sv)) != aio_req_stash
		383	&& !sv_derived_from (sv, "IO::AIO::REQ")))
198	croak ("object of class " AIO_REQ_KLASS " expected");	384	croak ("object of class IO::AIO::REQ expected");
199		385
200	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	386	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
201		387
202	return mg ? (aio_req)mg->mg_ptr : 0;	388	return mg ? (aio_req)mg->mg_ptr : 0;
		389	}
		390
		391	static aio_wd SvAIO_WD (SV *sv)
		392	{
		393	if (!SvROK (sv)
		394	|| SvSTASH (SvRV (sv)) != aio_wd_stash
		395	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
		396	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		397
		398	return (aio_wd)(long)SvIVX (SvRV (sv));
203	}	399	}
204		400
205	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
206	{	402	{
207	if (grp->sv2 && SvOK (grp->sv2))	403	if (grp->sv2 && SvOK (grp->sv2))
…		…
209	dSP;	405	dSP;
210		406
211	ENTER;	407	ENTER;
212	SAVETMPS;	408	SAVETMPS;
213	PUSHMARK (SP);	409	PUSHMARK (SP);
214	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	410	XPUSHs (req_sv (grp, aio_grp_stash));
215	PUTBACK;	411	PUTBACK;
216	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	412	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
217	SPAGAIN;	413	SPAGAIN;
218	FREETMPS;	414	FREETMPS;
219	LEAVE;	415	LEAVE;
…		…
237	}	433	}
238	}	434	}
239		435
240	static int req_invoke (eio_req *req)	436	static int req_invoke (eio_req *req)
241	{	437	{
242	dSP;
243
244	if (req->flags & FLAG_SV2_RO_OFF)	438	if (req->flags & FLAG_SV2_RO_OFF)
245	SvREADONLY_off (req->sv2);	439	SvREADONLY_off (req->sv2);
246		440
247	if (!EIO_CANCELLED (req) && req->callback)	441	if (!EIO_CANCELLED (req) && req->callback)
248	{	442	{
		443	dSP;
		444	static SV *sv_result_cache; /* caches the result integer SV */
		445	SV *sv_result;
		446
249	ENTER;	447	ENTER;
250	SAVETMPS;	448	SAVETMPS;
251	PUSHMARK (SP);	449	PUSHMARK (SP);
252	EXTEND (SP, 1);	450	EXTEND (SP, 1);
253		451
		452	/* do not recreate the result IV from scratch each time */
		453	if (expect_true (sv_result_cache))
		454	{
		455	sv_result = sv_result_cache; sv_result_cache = 0;
		456	SvIV_set (sv_result, req->result);
		457	SvIOK_only (sv_result);
		458	}
		459	else
		460	{
		461	sv_result = newSViv (req->result);
		462	SvREADONLY_on (sv_result);
		463	}
		464
254	switch (req->type)	465	switch (req->type)
255	{	466	{
		467	case EIO_WD_OPEN:
		468	PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
		469	break;
		470
256	case EIO_READDIR:	471	case EIO_READDIR:
257	{	472	{
258	SV *rv = &PL_sv_undef;	473	SV *rv = &PL_sv_undef;
259		474
260	if (req->result >= 0)	475	if (req->result >= 0)
…		…
325	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	540	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
326	char sym [64];	541	char sym [64];
327	int symlen;	542	int symlen;
328		543
329	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	544	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
330	gv_init (gv, stash, sym, symlen, 0);	545	gv_init (gv, aio_stash, sym, symlen, 0);
331		546
332	symlen = snprintf (	547	symlen = snprintf (
333	sym,	548	sym,
334	sizeof (sym),	549	sizeof (sym),
335	"%s&=%d",	550	"%s&=%d",
…		…
343		558
344	PUSHs (fh);	559	PUSHs (fh);
345	}	560	}
346	break;	561	break;
347		562
		563	case EIO_STATVFS:
		564	case EIO_FSTATVFS:
		565	{
		566	SV *rv = &PL_sv_undef;
		567
		568	#ifndef _WIN32
		569	if (req->result >= 0)
		570	{
		571	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		572	HV *hv = newHV ();
		573
		574	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		575
		576	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		577	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		578	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		579	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		580	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		581	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		582	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		583	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		584	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		585	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		586	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		587	}
		588	#endif
		589
		590	PUSHs (rv);
		591	}
		592
		593	break;
		594
348	case EIO_GROUP:	595	case EIO_GROUP:
349	req->int1 = 2; /* mark group as finished */	596	req->int1 = 2; /* mark group as finished */
350		597
351	if (req->sv1)	598	if (req->sv1)
352	{	599	{
…		…
362	case EIO_NOP:	609	case EIO_NOP:
363	case EIO_BUSY:	610	case EIO_BUSY:
364	break;	611	break;
365		612
366	case EIO_READLINK:	613	case EIO_READLINK:
		614	case EIO_REALPATH:
367	if (req->result > 0)	615	if (req->result > 0)
368	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	616	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
369	break;	617	break;
370		618
371	case EIO_STAT:	619	case EIO_STAT:
372	case EIO_LSTAT:	620	case EIO_LSTAT:
373	case EIO_FSTAT:	621	case EIO_FSTAT:
374	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	622	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
375	PL_laststatval = req->result;	623	PL_laststatval = req->result;
		624	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
376	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	625	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
377	PUSHs (sv_2mortal (newSViv (req->result)));	626	PUSHs (sv_result);
378	break;	627	break;
379		628
380	case EIO_READ:	629	case EIO_READ:
381	{	630	{
382	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	631	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
383	*SvEND (req->sv2) = 0;	632	*SvEND (req->sv2) = 0;
384	SvPOK_only (req->sv2);	633	SvPOK_only (req->sv2);
385	SvSETMAGIC (req->sv2);	634	SvSETMAGIC (req->sv2);
386	PUSHs (sv_2mortal (newSViv (req->result)));	635	PUSHs (sv_result);
387	}	636	}
388	break;	637	break;
389		638
390	case EIO_DUP2:	639	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
391	if (req->result > 0)	640	if (req->result > 0)
392	req->result = 0;	641	SvIV_set (sv_result, 0);
393	/* FALLTHROUGH */	642	/* FALLTHROUGH */
394		643
395	default:	644	default:
396	PUSHs (sv_2mortal (newSViv (req->result)));	645	PUSHs (sv_result);
397	break;	646	break;
398	}	647	}
399		648
400	errno = req->errorno;	649	errno = req->errorno;
401		650
402	PUTBACK;	651	PUTBACK;
403	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	652	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
404	SPAGAIN;	653	SPAGAIN;
		654
		655	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		656	SvREFCNT_dec (sv_result);
		657	else
		658	sv_result_cache = sv_result;
405		659
406	FREETMPS;	660	FREETMPS;
407	LEAVE;	661	LEAVE;
408		662
409	PUTBACK;	663	PUTBACK;
…		…
420	SvREFCNT_dec (req->self);	674	SvREFCNT_dec (req->self);
421	}	675	}
422		676
423	SvREFCNT_dec (req->sv1);	677	SvREFCNT_dec (req->sv1);
424	SvREFCNT_dec (req->sv2);	678	SvREFCNT_dec (req->sv2);
		679	SvREFCNT_dec (req->sv3);
		680	SvREFCNT_dec (req->sv4);
425	SvREFCNT_dec (req->callback);	681	SvREFCNT_dec (req->callback);
426		682
427	Safefree (req);	683	Safefree (req);
428	}	684	}
429		685
430	static void req_cancel_subs (aio_req grp)	686	static void req_cancel_subs (aio_req grp)
431	{	687	{
432	aio_req sub;
433
434	if (grp->type != EIO_GROUP)	688	if (grp->type != EIO_GROUP)
435	return;	689	return;
436		690
437	SvREFCNT_dec (grp->sv2);	691	SvREFCNT_dec (grp->sv2);
438	grp->sv2 = 0;	692	grp->sv2 = 0;
439		693
440	eio_grp_cancel (grp);	694	eio_grp_cancel (grp);
441	}	695	}
442		696
443	#ifdef USE_SOCKETS_AS_HANDLES
444	# define TO_SOCKET(x) (win32_get_osfhandle (x))
445	#else
446	# define TO_SOCKET(x) (x)
447	#endif
448
449	static void
450	create_respipe (void)	697	static void create_respipe (void)
451	{	698	{
452	int old_readfd = respipe [0];
453
454	if (respipe [1] >= 0)
455	respipe_close (TO_SOCKET (respipe [1]));
456
457	#ifdef _WIN32
458	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
459	#else
460	if (pipe (respipe))	699	if (s_epipe_renew (&respipe))
461	#endif
462	croak ("unable to initialize result pipe");	700	croak ("IO::AIO: unable to initialize result pipe");
463
464	if (old_readfd >= 0)
465	{
466	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
467	croak ("unable to initialize result pipe(2)");
468
469	respipe_close (respipe [0]);
470	respipe [0] = old_readfd;
471	}
472
473	#ifdef _WIN32
474	int arg = 1;
475	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
476	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
477	#else
478	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
479	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	#endif
481	croak ("unable to initialize result pipe(3)");
482
483	respipe_osf [0] = TO_SOCKET (respipe [0]);
484	respipe_osf [1] = TO_SOCKET (respipe [1]);
485	}	701	}
486		702
487	static void poll_wait (void)	703	static void poll_wait (void)
488	{	704	{
489	fd_set rfd;
490
491	while (eio_nreqs ())	705	while (eio_nreqs ())
492	{	706	{
493	int size;	707	int size;
494		708
495	X_LOCK (reslock);	709	X_LOCK (reslock);
…		…
499	if (size)	713	if (size)
500	return;	714	return;
501		715
502	etp_maybe_start_thread ();	716	etp_maybe_start_thread ();
503		717
504	FD_ZERO (&rfd);	718	s_epipe_wait (&respipe);
505	FD_SET (respipe [0], &rfd);
506
507	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
508	}	719	}
509	}	720	}
510		721
511	static int poll_cb (void)	722	static int poll_cb (void)
512	{	723	{
…		…
522		733
523	poll_wait ();	734	poll_wait ();
524	}	735	}
525	}	736	}
526		737
527	static void atfork_child (void)	738	static void ecb_cold
		739	reinit (void)
528	{	740	{
529	create_respipe ();	741	create_respipe ();
530	}
531		742
532	static SV *	743	if (eio_init (want_poll, done_poll) < 0)
533	get_cb (SV *cb_sv)	744	croak ("IO::AIO: unable to initialise eio library");
534	{	745	}
535	HV *st;
536	GV *gvp;
537	CV *cv;
538		746
539	if (!SvOK (cb_sv))	747	/*****************************************************************************/
		748
		749	#if !_POSIX_MAPPED_FILES
		750	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		751	# define munmap(addr,length) (errno = ENOSYS, -1)
		752	#endif
		753
		754	#if !_POSIX_MEMORY_PROTECTION
		755	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		756	# define PROT_NONE 0
		757	# define PROT_WRITE 0
		758	# define MAP_PRIVATE 0
		759	# define MAP_SHARED 0
		760	# define MAP_FIXED 0
		761	#endif
		762
		763	#define MMAP_MAGIC PERL_MAGIC_ext
		764
		765	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		766	{
		767	int old_errno = errno;
		768	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		769	errno = old_errno;
		770
		771	mg->mg_obj = 0; /* just in case */
		772
		773	SvREADONLY_off (sv);
		774
		775	if (SvPVX (sv) != mg->mg_ptr)
		776	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		777
		778	SvCUR_set (sv, 0);
		779	SvPVX (sv) = 0;
		780	SvOK_off (sv);
		781
540	return 0;	782	return 0;
		783	}
541		784
542	cv = sv_2cv (cb_sv, &st, &gvp, 0);	785	static MGVTBL mmap_vtbl = {
		786	0, 0, 0, 0, mmap_free
		787	};
543		788
544	if (!cv)	789	/*****************************************************************************/
545	croak ("IO::AIO callback must be undef or a CODE reference");
546		790
547	return (SV *)cv;	791	static SV * get_cb (SV *cb_sv)
		792	{
		793	SvGETMAGIC (cb_sv);
		794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
548	}	795	}
549		796
550	#define dREQ \	797	#define dREQ \
551	SV *cb_cv; \	798	SV *cb_cv; \
552	aio_req req; \	799	aio_req req; \
…		…
566	PUTBACK; \	813	PUTBACK; \
567	req_submit (req); \	814	req_submit (req); \
568	SPAGAIN; \	815	SPAGAIN; \
569	\	816	\
570	if (GIMME_V != G_VOID) \	817	if (GIMME_V != G_VOID) \
571	XPUSHs (req_sv (req, AIO_REQ_KLASS));	818	XPUSHs (req_sv (req, aio_req_stash));
572		819
573	static int	820	static void
574	extract_fd (SV *fh, int wr)	821	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
575	{	822	{
576	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	823	if (SvROK (path))
		824	{
		825	AV *av = (AV *)SvRV (path);
		826	SV *wdob;
577		827
578	if (fd < 0)	828	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
579	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");	829	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
580		830
581	return fd;	831	path = AvARRAY (av)[1];
		832	wdob = AvARRAY (av)[0];
		833
		834	if (SvOK (wdob))
		835	{
		836	*wd = SvAIO_WD (wdob);
		837	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		838	}
		839	else
		840	*wd = EIO_INVALID_WD;
		841	}
		842
		843	*pathsv = newSVsv (path);
		844	*ptr = SvPVbyte_nolen (*pathsv);
		845	}
		846
		847	static void
		848	req_set_path1 (aio_req req, SV *path)
		849	{
		850	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		851	}
		852
		853	static void
		854	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		855	{
		856	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		857
		858	switch (SvTYPE (rv))
		859	{
		860	case SVt_PVIO:
		861	case SVt_PVLV:
		862	case SVt_PVGV:
		863	req->type = type_fh;
		864	req->sv1 = newSVsv (fh_or_path);
		865	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		866	break;
		867
		868	default:
		869	req->type = type_path;
		870	req_set_path1 (req, fh_or_path);
		871	break;
		872	}
		873
582	}	874	}
583		875
584	MODULE = IO::AIO PACKAGE = IO::AIO	876	MODULE = IO::AIO PACKAGE = IO::AIO
585		877
586	PROTOTYPES: ENABLE	878	PROTOTYPES: ENABLE
…		…
589	{	881	{
590	static const struct {	882	static const struct {
591	const char *name;	883	const char *name;
592	IV iv;	884	IV iv;
593	} *civ, const_iv[] = {	885	} *civ, const_iv[] = {
594	# define const_iv(name, value) { # name, (IV) value },	886	# define const_niv(name, value) { # name, (IV) value },
		887	# define const_iv(name) { # name, (IV) name },
595	# define const_eio(name) { # name, (IV) EIO_ ## name },	888	# define const_eio(name) { # name, (IV) EIO_ ## name },
596	const_iv (EXDEV , EXDEV)	889	const_iv (EXDEV)
597	const_iv (ENOSYS , ENOSYS)	890	const_iv (ENOSYS)
598	const_iv (O_RDONLY, O_RDONLY)	891	const_iv (O_RDONLY)
599	const_iv (O_WRONLY, O_WRONLY)	892	const_iv (O_WRONLY)
		893	const_iv (O_RDWR)
600	const_iv (O_CREAT , O_CREAT)	894	const_iv (O_CREAT)
601	const_iv (O_TRUNC , O_TRUNC)	895	const_iv (O_TRUNC)
602	#ifndef _WIN32	896	const_iv (O_EXCL)
		897	const_iv (O_APPEND)
		898
		899	const_iv (O_ASYNC)
		900	const_iv (O_DIRECT)
		901	const_iv (O_NOATIME)
		902
		903	const_iv (O_CLOEXEC)
		904	const_iv (O_NOCTTY)
		905	const_iv (O_NOFOLLOW)
		906	const_iv (O_NONBLOCK)
		907	const_iv (O_EXEC)
		908	const_iv (O_SEARCH)
		909	const_iv (O_DIRECTORY)
		910	const_iv (O_DSYNC)
		911	const_iv (O_RSYNC)
		912	const_iv (O_SYNC)
		913	const_iv (O_TTY_INIT)
		914
603	const_iv (S_IFIFO , S_IFIFO)	915	const_iv (S_IFIFO)
604	#endif	916	const_iv (S_IFCHR)
		917	const_iv (S_IFBLK)
		918	const_iv (S_IFLNK)
		919	const_iv (S_IFREG)
		920	const_iv (S_IFDIR)
		921	const_iv (S_IFWHT)
		922	const_iv (S_IFSOCK)
		923	const_iv (S_IFMT)
		924
605	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	925	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
606	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	926	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
607	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	927	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
608	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	928	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
609	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	929	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
610	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	930	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		931
		932	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		933	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		934	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		935	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		936	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		937
		938	const_iv (ST_RDONLY)
		939	const_iv (ST_NOSUID)
		940	const_iv (ST_NODEV)
		941	const_iv (ST_NOEXEC)
		942	const_iv (ST_SYNCHRONOUS)
		943	const_iv (ST_MANDLOCK)
		944	const_iv (ST_WRITE)
		945	const_iv (ST_APPEND)
		946	const_iv (ST_IMMUTABLE)
		947	const_iv (ST_NOATIME)
		948	const_iv (ST_NODIRATIME)
		949	const_iv (ST_RELATIME)
		950
		951	const_iv (PROT_NONE)
		952	const_iv (PROT_EXEC)
		953	const_iv (PROT_READ)
		954	const_iv (PROT_WRITE)
		955
		956	/*const_iv (MAP_FIXED)*/
		957	const_iv (MAP_PRIVATE)
		958	const_iv (MAP_SHARED)
		959	const_iv (MAP_ANONYMOUS)
		960
		961	/* linuxish */
		962	const_iv (MAP_HUGETLB)
		963	const_iv (MAP_LOCKED)
		964	const_iv (MAP_NORESERVE)
		965	const_iv (MAP_POPULATE)
		966	const_iv (MAP_NONBLOCK)
		967
		968	const_eio (MCL_FUTURE)
		969	const_eio (MCL_CURRENT)
		970
		971	const_eio (MS_ASYNC)
		972	const_eio (MS_INVALIDATE)
		973	const_eio (MS_SYNC)
		974
		975	const_eio (MT_MODIFY)
611		976
612	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	977	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
613	const_eio (SYNC_FILE_RANGE_WRITE)	978	const_eio (SYNC_FILE_RANGE_WRITE)
614	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	979	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		980
		981	const_eio (FALLOC_FL_KEEP_SIZE)
615		982
616	const_eio (READDIR_DENTS)	983	const_eio (READDIR_DENTS)
617	const_eio (READDIR_DIRS_FIRST)	984	const_eio (READDIR_DIRS_FIRST)
618	const_eio (READDIR_STAT_ORDER)	985	const_eio (READDIR_STAT_ORDER)
619	const_eio (READDIR_FOUND_UNKNOWN)	986	const_eio (READDIR_FOUND_UNKNOWN)
…		…
627	const_eio (DT_LNK)	994	const_eio (DT_LNK)
628	const_eio (DT_SOCK)	995	const_eio (DT_SOCK)
629	const_eio (DT_WHT)	996	const_eio (DT_WHT)
630	};	997	};
631		998
632	stash = gv_stashpv ("IO::AIO", 1);	999	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1000	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1001	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1002	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
633		1003
634	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1004	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
635	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1005	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
636		1006
637	create_respipe ();	1007	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
638		1008
639	if (eio_init (want_poll, done_poll) < 0)	1009	reinit ();
640	croak ("IO::AIO: unable to initialise eio library");
641
642	/* atfork child called in fifo order, so before eio's handler */
643	X_THREAD_ATFORK (0, 0, atfork_child);
644	}	1010	}
645		1011
646	void	1012	void
		1013	reinit ()
		1014	PROTOTYPE:
		1015
		1016	void
647	max_poll_reqs (int nreqs)	1017	max_poll_reqs (unsigned int nreqs)
648	PROTOTYPE: $	1018	PROTOTYPE: $
649	CODE:	1019	CODE:
650	eio_set_max_poll_reqs (nreqs);	1020	eio_set_max_poll_reqs (nreqs);
651		1021
652	void	1022	void
…		…
654	PROTOTYPE: $	1024	PROTOTYPE: $
655	CODE:	1025	CODE:
656	eio_set_max_poll_time (nseconds);	1026	eio_set_max_poll_time (nseconds);
657		1027
658	void	1028	void
659	min_parallel (int nthreads)	1029	min_parallel (unsigned int nthreads)
660	PROTOTYPE: $	1030	PROTOTYPE: $
661	CODE:	1031	CODE:
662	eio_set_min_parallel (nthreads);	1032	eio_set_min_parallel (nthreads);
663		1033
664	void	1034	void
665	max_parallel (int nthreads)	1035	max_parallel (unsigned int nthreads)
666	PROTOTYPE: $	1036	PROTOTYPE: $
667	CODE:	1037	CODE:
668	eio_set_max_parallel (nthreads);	1038	eio_set_max_parallel (nthreads);
669		1039
670	void	1040	void
671	max_idle (int nthreads)	1041	max_idle (unsigned int nthreads)
672	PROTOTYPE: $	1042	PROTOTYPE: $
673	CODE:	1043	CODE:
674	eio_set_max_idle (nthreads);	1044	eio_set_max_idle (nthreads);
675		1045
676	void	1046	void
		1047	idle_timeout (unsigned int seconds)
		1048	PROTOTYPE: $
		1049	CODE:
		1050	eio_set_idle_timeout (seconds);
		1051
		1052	void
677	max_outstanding (int maxreqs)	1053	max_outstanding (unsigned int maxreqs)
678	PROTOTYPE: $	1054	PROTOTYPE: $
679	CODE:	1055	CODE:
680	max_outstanding = maxreqs;	1056	max_outstanding = maxreqs;
681		1057
682	void	1058	void
		1059	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1060	PPCODE:
		1061	{
		1062	dREQ;
		1063
		1064	req->type = EIO_WD_OPEN;
		1065	req_set_path1 (req, pathname);
		1066
		1067	REQ_SEND;
		1068	}
		1069
		1070	void
683	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1071	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
684	PROTOTYPE: $$$;$
685	PPCODE:	1072	PPCODE:
686	{	1073	{
687	dREQ;	1074	dREQ;
688		1075
689	req->type = EIO_OPEN;	1076	req->type = EIO_OPEN;
690	req->sv1 = newSVsv (pathname);	1077	req_set_path1 (req, pathname);
691	req->ptr1 = SvPVbyte_nolen (req->sv1);
692	req->int1 = flags;	1078	req->int1 = flags;
693	req->int2 = mode;	1079	req->int2 = mode;
694		1080
695	REQ_SEND;	1081	REQ_SEND;
696	}	1082	}
697		1083
698	void	1084	void
699	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1085	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
700	PROTOTYPE: $;$
701	ALIAS:	1086	ALIAS:
702	aio_fsync = EIO_FSYNC	1087	aio_fsync = EIO_FSYNC
703	aio_fdatasync = EIO_FDATASYNC	1088	aio_fdatasync = EIO_FDATASYNC
		1089	aio_syncfs = EIO_SYNCFS
704	PPCODE:	1090	PPCODE:
705	{	1091	{
706	int fd = extract_fd (fh, 0);	1092	int fd = s_fileno_croak (fh, 0);
707	dREQ;	1093	dREQ;
708		1094
709	req->type = ix;	1095	req->type = ix;
710	req->sv1 = newSVsv (fh);	1096	req->sv1 = newSVsv (fh);
711	req->int1 = fd;	1097	req->int1 = fd;
…		…
713	REQ_SEND (req);	1099	REQ_SEND (req);
714	}	1100	}
715		1101
716	void	1102	void
717	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1103	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
718	PROTOTYPE: $$$$;$
719	PPCODE:	1104	PPCODE:
720	{	1105	{
721	int fd = extract_fd (fh, 0);	1106	int fd = s_fileno_croak (fh, 0);
722	dREQ;	1107	dREQ;
723		1108
724	req->type = EIO_SYNC_FILE_RANGE;	1109	req->type = EIO_SYNC_FILE_RANGE;
725	req->sv1 = newSVsv (fh);	1110	req->sv1 = newSVsv (fh);
726	req->int1 = fd;	1111	req->int1 = fd;
…		…
730		1115
731	REQ_SEND (req);	1116	REQ_SEND (req);
732	}	1117	}
733		1118
734	void	1119	void
		1120	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1121	PPCODE:
		1122	{
		1123	int fd = s_fileno_croak (fh, 0);
		1124	dREQ;
		1125
		1126	req->type = EIO_FALLOCATE;
		1127	req->sv1 = newSVsv (fh);
		1128	req->int1 = fd;
		1129	req->int2 = mode;
		1130	req->offs = offset;
		1131	req->size = len;
		1132
		1133	REQ_SEND (req);
		1134	}
		1135
		1136	void
735	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_close (SV *fh, SV *callback=&PL_sv_undef)
736	PROTOTYPE: $;$
737	PPCODE:	1138	PPCODE:
738	{	1139	{
739	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1140	static int close_fd = -1; /* dummy fd to close fds via dup2 */
740	int fd = extract_fd (fh, 0);	1141	int fd = s_fileno_croak (fh, 0);
741	dREQ;	1142	dREQ;
742		1143
743	if (close_pipe < 0)	1144	if (expect_false (close_fd < 0))
744	{	1145	{
745	int pipefd [2];	1146	int pipefd [2];
746		1147
		1148	if (
		1149	#ifdef _WIN32
		1150	_pipe (pipefd, 1, _O_BINARY) < 0
		1151	#else
747	if (pipe (pipefd) < 0	1152	pipe (pipefd) < 0
748	|| close (pipefd [1]) < 0
749	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1153	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1154	#endif
		1155	|| close (pipefd [1]) < 0
		1156	)
750	abort (); /*D*/	1157	abort (); /*D*/
751		1158
752	close_pipe = pipefd [0];	1159	close_fd = pipefd [0];
753	}	1160	}
754		1161
755	req->type = EIO_DUP2;	1162	req->type = EIO_DUP2;
756	req->int1 = close_pipe;	1163	req->int1 = close_fd;
757	req->sv2 = newSVsv (fh);	1164	req->sv2 = newSVsv (fh);
758	req->int2 = fd;	1165	req->int2 = fd;
759		1166
760	REQ_SEND (req);	1167	REQ_SEND (req);
761	}	1168	}
…		…
763	void	1170	void
764	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1171	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
765	ALIAS:	1172	ALIAS:
766	aio_read = EIO_READ	1173	aio_read = EIO_READ
767	aio_write = EIO_WRITE	1174	aio_write = EIO_WRITE
768	PROTOTYPE: $$$$$;$
769	PPCODE:	1175	PPCODE:
770	{	1176	{
771	STRLEN svlen;	1177	STRLEN svlen;
772	int fd = extract_fd (fh, ix == EIO_WRITE);	1178	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
773	char *svptr = SvPVbyte (data, svlen);	1179	char *svptr = SvPVbyte (data, svlen);
774	UV len = SvUV (length);	1180	UV len = SvUV (length);
775		1181
776	if (dataoffset < 0)	1182	if (dataoffset < 0)
777	dataoffset += svlen;	1183	dataoffset += svlen;
…		…
813	REQ_SEND;	1219	REQ_SEND;
814	}	1220	}
815	}	1221	}
816		1222
817	void	1223	void
818	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1224	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
819	PROTOTYPE: $$;$	1225	ALIAS:
		1226	aio_readlink = EIO_READLINK
		1227	aio_realpath = EIO_REALPATH
820	PPCODE:	1228	PPCODE:
821	{	1229	{
822	SV *data;
823	dREQ;	1230	dREQ;
824		1231
825	req->type = EIO_READLINK;	1232	req->type = ix;
826	req->sv1 = newSVsv (path);	1233	req_set_path1 (req, pathname);
827	req->ptr1 = SvPVbyte_nolen (req->sv1);
828		1234
829	REQ_SEND;	1235	REQ_SEND;
830	}	1236	}
831		1237
832	void	1238	void
833	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1239	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
834	PROTOTYPE: $$$$;$
835	PPCODE:	1240	PPCODE:
836	{	1241	{
837	int ifd = extract_fd (in_fh , 0);	1242	int ifd = s_fileno_croak (in_fh , 0);
838	int ofd = extract_fd (out_fh, 0);	1243	int ofd = s_fileno_croak (out_fh, 1);
839	dREQ;	1244	dREQ;
840		1245
841	req->type = EIO_SENDFILE;	1246	req->type = EIO_SENDFILE;
842	req->sv1 = newSVsv (out_fh);	1247	req->sv1 = newSVsv (out_fh);
843	req->int1 = ofd;	1248	req->int1 = ofd;
…		…
849	REQ_SEND;	1254	REQ_SEND;
850	}	1255	}
851		1256
852	void	1257	void
853	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1258	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
854	PROTOTYPE: $$$;$
855	PPCODE:	1259	PPCODE:
856	{	1260	{
857	int fd = extract_fd (fh, 0);	1261	int fd = s_fileno_croak (fh, 0);
858	dREQ;	1262	dREQ;
859		1263
860	req->type = EIO_READAHEAD;	1264	req->type = EIO_READAHEAD;
861	req->sv1 = newSVsv (fh);	1265	req->sv1 = newSVsv (fh);
862	req->int1 = fd;	1266	req->int1 = fd;
…		…
867	}	1271	}
868		1272
869	void	1273	void
870	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1274	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
871	ALIAS:	1275	ALIAS:
872	aio_stat = EIO_STAT	1276	aio_stat = EIO_STAT
873	aio_lstat = EIO_LSTAT	1277	aio_lstat = EIO_LSTAT
		1278	aio_statvfs = EIO_STATVFS
874	PPCODE:	1279	PPCODE:
875	{	1280	{
876	dREQ;	1281	dREQ;
877		1282
878	req->sv1 = newSVsv (fh_or_path);	1283	req->sv1 = newSVsv (fh_or_path);
879		1284	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
880	if (SvPOK (req->sv1))
881	{
882	req->type = ix;
883	req->ptr1 = SvPVbyte_nolen (req->sv1);
884	}
885	else
886	{
887	req->type = EIO_FSTAT;
888	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
889	}
890
891	REQ_SEND;	1285	REQ_SEND;
892	}	1286	}
		1287
		1288	UV
		1289	major (UV dev)
		1290	ALIAS:
		1291	minor = 1
		1292	CODE:
		1293	RETVAL = ix ? major (dev) : minor (dev);
		1294	OUTPUT:
		1295	RETVAL
		1296
		1297	UV
		1298	makedev (UV maj, UV min)
		1299	CODE:
		1300	RETVAL = makedev (maj, min);
		1301	OUTPUT:
		1302	RETVAL
893		1303
894	void	1304	void
895	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1305	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
896	PPCODE:	1306	PPCODE:
897	{	1307	{
898	dREQ;	1308	dREQ;
899		1309
900	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1310	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
901	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1311	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
902	req->sv1 = newSVsv (fh_or_path);	1312	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
903
904	if (SvPOK (req->sv1))
905	{
906	req->type = EIO_UTIME;
907	req->ptr1 = SvPVbyte_nolen (req->sv1);
908	}
909	else
910	{
911	req->type = EIO_FUTIME;
912	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
913	}
914		1313
915	REQ_SEND;	1314	REQ_SEND;
916	}	1315	}
917		1316
918	void	1317	void
919	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1318	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
920	PPCODE:	1319	PPCODE:
921	{	1320	{
922	dREQ;	1321	dREQ;
923		1322
924	req->sv1 = newSVsv (fh_or_path);
925	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1323	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
926		1324	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
927	if (SvPOK (req->sv1))
928	{
929	req->type = EIO_TRUNCATE;
930	req->ptr1 = SvPVbyte_nolen (req->sv1);
931	}
932	else
933	{
934	req->type = EIO_FTRUNCATE;
935	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
936	}
937		1325
938	REQ_SEND;	1326	REQ_SEND;
939	}	1327	}
940		1328
941	void	1329	void
…		…
946	PPCODE:	1334	PPCODE:
947	{	1335	{
948	dREQ;	1336	dREQ;
949		1337
950	req->int2 = mode;	1338	req->int2 = mode;
951	req->sv1 = newSVsv (fh_or_path);	1339	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
952
953	if (SvPOK (req->sv1))
954	{
955	req->type = ix;
956	req->ptr1 = SvPVbyte_nolen (req->sv1);
957	}
958	else
959	{
960	req->type = EIO_FCHMOD;
961	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
962	}
963		1340
964	REQ_SEND;	1341	REQ_SEND;
965	}	1342	}
966		1343
967	void	1344	void
…		…
970	{	1347	{
971	dREQ;	1348	dREQ;
972		1349
973	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1350	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
974	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1351	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
975	req->sv1 = newSVsv (fh_or_path);	1352	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
976
977	if (SvPOK (req->sv1))
978	{
979	req->type = EIO_CHOWN;
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	}
982	else
983	{
984	req->type = EIO_FCHOWN;
985	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
986	}
987		1353
988	REQ_SEND;	1354	REQ_SEND;
989	}	1355	}
990		1356
991	void	1357	void
…		…
1014	PPCODE:	1380	PPCODE:
1015	{	1381	{
1016	dREQ;	1382	dREQ;
1017		1383
1018	req->type = ix;	1384	req->type = ix;
1019	req->sv1 = newSVsv (pathname);	1385	req_set_path1 (req, pathname);
1020	req->ptr1 = SvPVbyte_nolen (req->sv1);
1021		1386
1022	REQ_SEND;	1387	REQ_SEND;
1023	}	1388	}
1024		1389
1025	void	1390	void
…		…
1029	aio_symlink = EIO_SYMLINK	1394	aio_symlink = EIO_SYMLINK
1030	aio_rename = EIO_RENAME	1395	aio_rename = EIO_RENAME
1031	PPCODE:	1396	PPCODE:
1032	{	1397	{
1033	dREQ;	1398	dREQ;
		1399	eio_wd wd2;
1034		1400
1035	req->type = ix;	1401	req->type = ix;
1036	req->sv1 = newSVsv (oldpath);	1402	req_set_path1 (req, oldpath);
1037	req->ptr1 = SvPVbyte_nolen (req->sv1);	1403	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1038	req->sv2 = newSVsv (newpath);	1404	req->int3 = (long)wd2;
1039	req->ptr2 = SvPVbyte_nolen (req->sv2);
1040		1405
1041	REQ_SEND;	1406	REQ_SEND;
1042	}	1407	}
1043		1408
1044	void	1409	void
…		…
1046	PPCODE:	1411	PPCODE:
1047	{	1412	{
1048	dREQ;	1413	dREQ;
1049		1414
1050	req->type = EIO_MKNOD;	1415	req->type = EIO_MKNOD;
1051	req->sv1 = newSVsv (pathname);
1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
1053	req->int2 = (mode_t)mode;	1416	req->int2 = (mode_t)mode;
1054	req->offs = dev;	1417	req->offs = dev;
		1418	req_set_path1 (req, pathname);
1055		1419
1056	REQ_SEND;	1420	REQ_SEND;
1057	}	1421	}
1058		1422
1059	void	1423	void
		1424	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1425	ALIAS:
		1426	aio_mtouch = EIO_MTOUCH
		1427	aio_msync = EIO_MSYNC
		1428	PPCODE:
		1429	{
		1430	STRLEN svlen;
		1431	char *svptr = SvPVbyte (data, svlen);
		1432	UV len = SvUV (length);
		1433
		1434	if (offset < 0)
		1435	offset += svlen;
		1436
		1437	if (offset < 0 || offset > svlen)
		1438	croak ("offset outside of scalar");
		1439
		1440	if (!SvOK (length) || len + offset > svlen)
		1441	len = svlen - offset;
		1442
		1443	{
		1444	dREQ;
		1445
		1446	req->type = ix;
		1447	req->sv2 = SvREFCNT_inc (data);
		1448	req->ptr2 = (char *)svptr + offset;
		1449	req->size = len;
		1450	req->int1 = flags;
		1451
		1452	REQ_SEND;
		1453	}
		1454	}
		1455
		1456	void
		1457	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1458	PPCODE:
		1459	{
		1460	STRLEN svlen;
		1461	char *svptr = SvPVbyte (data, svlen);
		1462	UV len = SvUV (length);
		1463
		1464	if (offset < 0)
		1465	offset += svlen;
		1466
		1467	if (offset < 0 || offset > svlen)
		1468	croak ("offset outside of scalar");
		1469
		1470	if (!SvOK (length) || len + offset > svlen)
		1471	len = svlen - offset;
		1472
		1473	{
		1474	dREQ;
		1475
		1476	req->type = EIO_MLOCK;
		1477	req->sv2 = SvREFCNT_inc (data);
		1478	req->ptr2 = (char *)svptr + offset;
		1479	req->size = len;
		1480
		1481	REQ_SEND;
		1482	}
		1483	}
		1484
		1485	void
		1486	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1487	PPCODE:
		1488	{
		1489	dREQ;
		1490
		1491	req->type = EIO_MLOCKALL;
		1492	req->int1 = flags;
		1493
		1494	REQ_SEND;
		1495	}
		1496
		1497	void
1060	aio_busy (double delay, SV *callback=&PL_sv_undef)	1498	aio_busy (double delay, SV *callback=&PL_sv_undef)
1061	PPCODE:	1499	PPCODE:
1062	{	1500	{
1063	dREQ;	1501	dREQ;
1064		1502
…		…
1068	REQ_SEND;	1506	REQ_SEND;
1069	}	1507	}
1070		1508
1071	void	1509	void
1072	aio_group (SV *callback=&PL_sv_undef)	1510	aio_group (SV *callback=&PL_sv_undef)
1073	PROTOTYPE: ;$
1074	PPCODE:	1511	PPCODE:
1075	{	1512	{
1076	dREQ;	1513	dREQ;
1077		1514
1078	req->type = EIO_GROUP;	1515	req->type = EIO_GROUP;
1079		1516
1080	req_submit (req);	1517	req_submit (req);
1081	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1518	XPUSHs (req_sv (req, aio_grp_stash));
1082	}	1519	}
1083		1520
1084	void	1521	void
1085	aio_nop (SV *callback=&PL_sv_undef)	1522	aio_nop (SV *callback=&PL_sv_undef)
1086	ALIAS:	1523	ALIAS:
…		…
1095	REQ_SEND;	1532	REQ_SEND;
1096	}	1533	}
1097		1534
1098	int	1535	int
1099	aioreq_pri (int pri = 0)	1536	aioreq_pri (int pri = 0)
1100	PROTOTYPE: ;$
1101	CODE:	1537	CODE:
1102	RETVAL = next_pri;	1538	RETVAL = next_pri;
1103	if (items > 0)	1539	if (items > 0)
1104	{	1540	{
1105	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1541	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1117	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1553	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1118	next_pri = nice;	1554	next_pri = nice;
1119		1555
1120	void	1556	void
1121	flush ()	1557	flush ()
1122	PROTOTYPE:
1123	CODE:	1558	CODE:
1124	while (eio_nreqs ())	1559	while (eio_nreqs ())
1125	{	1560	{
1126	poll_wait ();	1561	poll_wait ();
1127	poll_cb ();	1562	poll_cb ();
1128	}	1563	}
1129		1564
1130	int	1565	int
1131	poll()	1566	poll ()
1132	PROTOTYPE:
1133	CODE:	1567	CODE:
1134	poll_wait ();	1568	poll_wait ();
1135	RETVAL = poll_cb ();	1569	RETVAL = poll_cb ();
1136	OUTPUT:	1570	OUTPUT:
1137	RETVAL	1571	RETVAL
1138		1572
1139	int	1573	int
1140	poll_fileno()	1574	poll_fileno ()
1141	PROTOTYPE:
1142	CODE:	1575	CODE:
1143	RETVAL = respipe [0];	1576	RETVAL = s_epipe_fd (&respipe);
1144	OUTPUT:	1577	OUTPUT:
1145	RETVAL	1578	RETVAL
1146		1579
1147	int	1580	int
1148	poll_cb(...)	1581	poll_cb (...)
1149	PROTOTYPE:	1582	PROTOTYPE:
1150	CODE:	1583	CODE:
1151	RETVAL = poll_cb ();	1584	RETVAL = poll_cb ();
1152	OUTPUT:	1585	OUTPUT:
1153	RETVAL	1586	RETVAL
1154		1587
1155	void	1588	void
1156	poll_wait()	1589	poll_wait ()
1157	PROTOTYPE:
1158	CODE:	1590	CODE:
1159	poll_wait ();	1591	poll_wait ();
1160		1592
1161	int	1593	int
1162	nreqs()	1594	nreqs ()
1163	PROTOTYPE:
1164	CODE:	1595	CODE:
1165	RETVAL = eio_nreqs ();	1596	RETVAL = eio_nreqs ();
1166	OUTPUT:	1597	OUTPUT:
1167	RETVAL	1598	RETVAL
1168		1599
1169	int	1600	int
1170	nready()	1601	nready ()
1171	PROTOTYPE:
1172	CODE:	1602	CODE:
1173	RETVAL = eio_nready ();	1603	RETVAL = eio_nready ();
1174	OUTPUT:	1604	OUTPUT:
1175	RETVAL	1605	RETVAL
1176		1606
1177	int	1607	int
1178	npending()	1608	npending ()
1179	PROTOTYPE:
1180	CODE:	1609	CODE:
1181	RETVAL = eio_npending ();	1610	RETVAL = eio_npending ();
1182	OUTPUT:	1611	OUTPUT:
1183	RETVAL	1612	RETVAL
1184		1613
1185	int	1614	int
1186	nthreads()	1615	nthreads ()
1187	PROTOTYPE:
1188	CODE:	1616	CODE:
1189	RETVAL = eio_nthreads ();	1617	RETVAL = eio_nthreads ();
1190	OUTPUT:	1618	OUTPUT:
1191	RETVAL	1619	RETVAL
1192		1620
1193	int	1621	int
1194	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1622	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1195	PROTOTYPE: $$$$
1196	CODE:	1623	CODE:
1197	{
1198	#if _XOPEN_SOURCE >= 600
1199	RETVAL = posix_fadvise (fh, offset, length, advice);	1624	RETVAL = posix_fadvise (fh, offset, length, advice);
1200	#else
1201	RETVAL = errno = ENOSYS;
1202	#endif
1203	}
1204	OUTPUT:	1625	OUTPUT:
1205	RETVAL	1626	RETVAL
1206		1627
1207	ssize_t	1628	IV
1208	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1629	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1209	PROTOTYPE: $$$$
1210	CODE:	1630	CODE:
1211	eio_sendfile_sync (ofh, ifh, offset, count);	1631	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1632	OUTPUT:
		1633	RETVAL
		1634
		1635	void
		1636	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1637	PPCODE:
		1638	sv_unmagic (scalar, MMAP_MAGIC);
		1639	{
		1640	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1641	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1642	if (addr == (void *)-1)
		1643	XSRETURN_NO;
		1644
		1645	sv_force_normal (scalar);
		1646
		1647	/* we store the length in mg_obj, as namlen is I32 :/ */
		1648	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1649	->mg_obj = (SV *)length;
		1650
		1651	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1652
		1653	if (!(prot & PROT_WRITE))
		1654	SvREADONLY_on (scalar);
		1655
		1656	if (SvLEN (scalar))
		1657	Safefree (SvPVX (scalar));
		1658
		1659	SvPVX (scalar) = (char *)addr;
		1660	SvCUR_set (scalar, length);
		1661	SvLEN_set (scalar, 0);
		1662	SvPOK_only (scalar);
		1663
		1664	XSRETURN_YES;
		1665	}
		1666
		1667	void
		1668	munmap (SV *scalar)
		1669	CODE:
		1670	sv_unmagic (scalar, MMAP_MAGIC);
		1671
		1672	int
		1673	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1674	ALIAS:
		1675	mprotect = 1
		1676	CODE:
		1677	{
		1678	STRLEN svlen;
		1679	void *addr = SvPVbyte (scalar, svlen);
		1680	size_t len = SvUV (length);
		1681
		1682	if (offset < 0)
		1683	offset += svlen;
		1684
		1685	if (offset < 0 || offset > svlen)
		1686	croak ("offset outside of scalar");
		1687
		1688	if (!SvOK (length) || len + offset > svlen)
		1689	len = svlen - offset;
		1690
		1691	addr = (void *)(((intptr_t)addr) + offset);
		1692	eio_page_align (&addr, &len);
		1693
		1694	switch (ix)
		1695	{
		1696	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1697	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1698	}
		1699	}
		1700	OUTPUT:
		1701	RETVAL
		1702
		1703	int
		1704	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1705	CODE:
		1706	{
		1707	STRLEN svlen;
		1708	void *addr = SvPVbyte (scalar, svlen);
		1709	size_t len = SvUV (length);
		1710
		1711	if (offset < 0)
		1712	offset += svlen;
		1713
		1714	if (offset < 0 || offset > svlen)
		1715	croak ("offset outside of scalar");
		1716
		1717	if (!SvOK (length) || len + offset > svlen)
		1718	len = svlen - offset;
		1719
		1720	addr = (void *)(((intptr_t)addr) + offset);
		1721	eio_page_align (&addr, &len);
		1722	#if _POSIX_MEMLOCK_RANGE
		1723	RETVAL = munlock (addr, len);
		1724	#else
		1725	RETVAL = ((errno = ENOSYS), -1);
		1726	#endif
		1727	}
		1728	OUTPUT:
		1729	RETVAL
		1730
		1731	int
		1732	munlockall ()
		1733	CODE:
		1734	#if _POSIX_MEMLOCK
		1735	munlockall ();
		1736	#else
		1737	RETVAL = -1;
		1738	errno = ENOSYS;
		1739	#endif
		1740	OUTPUT:
		1741	RETVAL
1212		1742
1213	void _on_next_submit (SV *cb)	1743	void _on_next_submit (SV *cb)
1214	CODE:	1744	CODE:
1215	SvREFCNT_dec (on_next_submit);	1745	SvREFCNT_dec (on_next_submit);
1216	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1746	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1217		1747
1218	PROTOTYPES: DISABLE	1748	PROTOTYPES: DISABLE
1219		1749
		1750	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1751
		1752	BOOT:
		1753	{
		1754	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1755	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1756	}
		1757
		1758	void
		1759	DESTROY (SV *self)
		1760	CODE:
		1761	{
		1762	aio_wd wd = SvAIO_WD (self);
		1763	#if HAVE_AT
		1764	SV *callback = &PL_sv_undef;
		1765	dREQ; /* clobbers next_pri :/ */
		1766	req->type = EIO_WD_CLOSE;
		1767	req->wd = wd;
		1768	REQ_SEND;
		1769	#else
		1770	eio_wd_close_sync (wd);
		1771	#endif
		1772	}
		1773
1220	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1774	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1221		1775
1222	void	1776	void
1223	cancel (aio_req_ornot req)	1777	cancel (aio_req_ornot req)
1224	CODE:	1778	CODE:
…		…
1231	if (GIMME_V != G_VOID)	1785	if (GIMME_V != G_VOID)
1232	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1786	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1233		1787
1234	if (items > 1)	1788	if (items > 1)
1235	{	1789	{
1236	SV *cb_cv = get_cb (callback);	1790	SV *cb_cv =get_cb (callback);
1237		1791
1238	SvREFCNT_dec (req->callback);	1792	SvREFCNT_dec (req->callback);
1239	req->callback = SvREFCNT_inc (cb_cv);	1793	req->callback = SvREFCNT_inc (cb_cv);
1240	}	1794	}
1241	}	1795	}

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