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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 1.209 by root, Sun Apr 1 17:46:02 2012 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
20	/* perl namespace pollution */	24	/* perl namespace pollution */
21	#undef VERSION	25	#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		26
72	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	29	#undef readdir
75	#undef opendir	30	#undef opendir
76	#undef closedir	31	#undef closedir
77		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	#define EIO_STRUCT_STAT struct _stati64
		68	#define EIO_STRUCT_STATI64
		69
		70	#else
		71
		72	#include <sys/time.h>
		73	#include <sys/select.h>
		74	#include <unistd.h>
		75	#include <utime.h>
		76	#include <signal.h>
		77
78	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
		79
		80	#endif
79		81
80	/* use NV for 32 bit perls as it allows larger offsets */	82	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8	83	#if IVSIZE >= 8
82	# define VAL64 IV	84	# define VAL64 IV
83	# define SvVAL64 SvIV	85	# define SvVAL64 SvIV
…		…
103		105
104	typedef SV SV8; /* byte-sv, used for argument-checking */	106	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	107	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	108	typedef int aio_wfd; /* write file descriptor */
107		109
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	110	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		111
110	#define EIO_REQ_MEMBERS \	112	#define EIO_REQ_MEMBERS \
111	SV *callback; \	113	SV *callback; \
112	SV *sv1, *sv2; \	114	SV *sv1, *sv2; \
		115	SV *sv3, *sv4; \
113	STRLEN stroffset; \	116	STRLEN stroffset; \
114	SV *self;	117	SV *self;
115		118
116	#define EIO_NO_WRAPPERS 1	119	#define EIO_NO_WRAPPERS 1
117		120
		121	#include "libeio/config.h"
118	#include "libeio/eio.h"	122	#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		123
145	static int req_invoke (eio_req *req);	124	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	125	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	126	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	127	#define EIO_DESTROY(req) req_destroy (req)
149		128
		129	#include "libeio/eio.c"
		130
		131	/* Linux/others */
		132	#ifndef O_ASYNC
		133	# define O_ASYNC 0
		134	#endif
		135	#ifndef O_DIRECT
		136	# define O_DIRECT 0
		137	#endif
		138	#ifndef O_NOATIME
		139	# define O_NOATIME 0
		140	#endif
		141
		142	/* POSIX */
		143	#ifndef O_CLOEXEC
		144	# define O_CLOEXEC 0
		145	#endif
		146	#ifndef O_NOFOLLOW
		147	# define O_NOFOLLOW 0
		148	#endif
		149	#ifndef O_NOCTTY
		150	# define O_NOCTTY 0
		151	#endif
		152	#ifndef O_NONBLOCK
		153	# define O_NONBLOCK 0
		154	#endif
		155	#ifndef O_EXEC
		156	# define O_EXEC 0
		157	#endif
		158	#ifndef O_SEARCH
		159	# define O_SEARCH 0
		160	#endif
		161	#ifndef O_DIRECTORY
		162	# define O_DIRECTORY 0
		163	#endif
		164	#ifndef O_DSYNC
		165	# define O_DSYNC 0
		166	#endif
		167	#ifndef O_RSYNC
		168	# define O_RSYNC 0
		169	#endif
		170	#ifndef O_SYNC
		171	# define O_SYNC 0
		172	#endif
		173	#ifndef O_TTY_INIT
		174	# define O_TTY_INIT 0
		175	#endif
		176
		177	#ifndef POSIX_FADV_NORMAL
		178	# define POSIX_FADV_NORMAL 0
		179	#endif
		180	#ifndef POSIX_FADV_SEQUENTIAL
		181	# define POSIX_FADV_SEQUENTIAL 0
		182	#endif
		183	#ifndef POSIX_FADV_RANDOM
		184	# define POSIX_FADV_RANDOM 0
		185	#endif
		186	#ifndef POSIX_FADV_NOREUSE
		187	# define POSIX_FADV_NOREUSE 0
		188	#endif
		189	#ifndef POSIX_FADV_WILLNEED
		190	# define POSIX_FADV_WILLNEED 0
		191	#endif
		192	#ifndef POSIX_FADV_DONTNEED
		193	# define POSIX_FADV_DONTNEED 0
		194	#endif
		195
		196	#if !HAVE_POSIX_FADVISE
		197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		198	#endif
		199
		200	#ifndef POSIX_MADV_NORMAL
		201	# define POSIX_MADV_NORMAL 0
		202	#endif
		203	#ifndef POSIX_MADV_SEQUENTIAL
		204	# define POSIX_MADV_SEQUENTIAL 0
		205	#endif
		206	#ifndef POSIX_MADV_RANDOM
		207	# define POSIX_MADV_RANDOM 0
		208	#endif
		209	#ifndef POSIX_MADV_WILLNEED
		210	# define POSIX_MADV_WILLNEED 0
		211	#endif
		212	#ifndef POSIX_MADV_DONTNEED
		213	# define POSIX_MADV_DONTNEED 0
		214	#endif
		215
		216	#if !HAVE_POSIX_MADVISE
		217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		218	#endif
		219
		220	#ifndef PROT_NONE
		221	# define PROT_NONE 0
		222	#endif
		223	#ifndef PROT_READ
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_WRITE
		227	# define PROT_READ 0
		228	#endif
		229	#ifndef PROT_EXEC
		230	# define PROT_EXEC 0
		231	#endif
		232
		233	#ifndef ST_RDONLY
		234	# define ST_RDONLY 0
		235	#endif
		236	#ifndef ST_NOSUID
		237	# define ST_NOSUID 0
		238	#endif
		239	#ifndef ST_NODEV
		240	# define ST_NODEV 0
		241	#endif
		242	#ifndef ST_NOEXEC
		243	# define ST_NOEXEC 0
		244	#endif
		245	#ifndef ST_SYNCHRONOUS
		246	# define ST_SYNCHRONOUS 0
		247	#endif
		248	#ifndef ST_MANDLOCK
		249	# define ST_MANDLOCK 0
		250	#endif
		251	#ifndef ST_WRITE
		252	# define ST_WRITE 0
		253	#endif
		254	#ifndef ST_APPEND
		255	# define ST_APPEND 0
		256	#endif
		257	#ifndef ST_IMMUTABLE
		258	# define ST_IMMUTABLE 0
		259	#endif
		260	#ifndef ST_NOATIME
		261	# define ST_NOATIME 0
		262	#endif
		263	#ifndef ST_NODIRATIME
		264	# define ST_NODIRATIME 0
		265	#endif
		266	#ifndef ST_RELATIME
		267	# define ST_RELATIME 0
		268	#endif
		269
		270	#ifndef S_IFIFO
		271	# define S_IFIFO 0
		272	#endif
		273	#ifndef S_IFCHR
		274	# define S_IFCHR 0
		275	#endif
		276	#ifndef S_IFBLK
		277	# define S_IFBLK 0
		278	#endif
		279	#ifndef S_IFLNK
		280	# define S_IFLNK 0
		281	#endif
		282	#ifndef S_IFREG
		283	# define S_IFREG 0
		284	#endif
		285	#ifndef S_IFDIR
		286	# define S_IFDIR 0
		287	#endif
		288	#ifndef S_IFWHT
		289	# define S_IFWHT 0
		290	#endif
		291	#ifndef S_IFSOCK
		292	# define S_IFSOCK 0
		293	#endif
		294
		295	#ifndef MAP_ANONYMOUS
		296	# ifdef MAP_ANON
		297	# define MAP_ANONYMOUS MAP_ANON
		298	# else
		299	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		300	# endif
		301	#endif
		302	#ifndef MAP_HUGETLB
		303	# define MAP_HUGETLB 0
		304	#endif
		305	#ifndef MAP_LOCKED
		306	# define MAP_LOCKED 0
		307	#endif
		308	#ifndef MAP_NORESERVE
		309	# define MAP_NORESERVE 0
		310	#endif
		311	#ifndef MAP_POPULATE
		312	# define MAP_POPULATE 0
		313	#endif
		314	#ifndef MAP_NONBLOCK
		315	# define MAP_NONBLOCK 0
		316	#endif
		317
		318	#ifndef makedev
		319	# define makedev(maj,min) (((maj) << 8) | (min))
		320	#endif
		321	#ifndef major
		322	# define major(dev) ((dev) >> 8)
		323	#endif
		324	#ifndef minor
		325	# define minor(dev) ((dev) & 0xff)
		326	#endif
		327
		328	#ifndef PAGESIZE
		329	# define PAGESIZE sysconf (_SC_PAGESIZE)
		330	#endif
		331
150	enum {	332	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	334	};
153		335
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	336	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	337	typedef eio_req *aio_req_ornot;
		338	typedef eio_wd aio_wd;
158		339
159	static SV *on_next_submit;	340	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	341	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	342	static int max_outstanding;
162		343
163	static s_epipe respipe;	344	static s_epipe respipe;
164		345
165	static void req_destroy (aio_req req);	346	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	347	static void req_cancel (aio_req req);
167		348
168	static void want_poll (void)	349	static void
		350	want_poll (void)
169	{	351	{
170	/* write a dummy byte to the pipe so fh becomes ready */	352	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	353	s_epipe_signal (&respipe);
172	}	354	}
173		355
174	static void done_poll (void)	356	static void
		357	done_poll (void)
175	{	358	{
176	/* read any signals sent by the worker threads */	359	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	360	s_epipe_drain (&respipe);
178	}	361	}
179		362
180	/* must be called at most once */	363	/* must be called at most once */
		364	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	365	req_sv (aio_req req, HV *stash)
182	{	366	{
183	if (!req->self)	367	if (!req->self)
184	{	368	{
185	req->self = (SV *)newHV ();	369	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	370	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	371	}
188		372
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	373	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	374	}
191		375
192	static aio_req SvAIO_REQ (SV *sv)	376	static SV *
		377	newSVaio_wd (aio_wd wd)
		378	{
		379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		380	}
		381
		382	static aio_req
		383	SvAIO_REQ (SV *sv)
193	{	384	{
194	MAGIC *mg;	385	MAGIC *mg;
195		386
196	if (!SvROK (sv)	387	if (!SvROK (sv)
		388	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	389	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	390	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	391	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	392	croak ("object of class IO::AIO::REQ expected");
201		393
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	394	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		395
204	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	397	}
206		398
		399	static aio_wd
		400	SvAIO_WD (SV *sv)
		401	{
		402	if (!SvROK (sv)
		403	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		406
		407	return (aio_wd)(long)SvIVX (SvRV (sv));
		408	}
		409
		410	static void
207	static void aio_grp_feed (aio_req grp)	411	aio_grp_feed (aio_req grp)
208	{	412	{
209	if (grp->sv2 && SvOK (grp->sv2))	413	if (grp->sv2 && SvOK (grp->sv2))
210	{	414	{
211	dSP;	415	dSP;
212		416
…		…
220	FREETMPS;	424	FREETMPS;
221	LEAVE;	425	LEAVE;
222	}	426	}
223	}	427	}
224		428
		429	static void
225	static void req_submit (eio_req *req)	430	req_submit (eio_req *req)
226	{	431	{
227	eio_submit (req);	432	eio_submit (req);
228		433
229	if (expect_false (on_next_submit))	434	if (expect_false (on_next_submit))
230	{	435	{
…		…
237	PUTBACK;	442	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	443	call_sv (cb, G_DISCARD | G_EVAL);
239	}	444	}
240	}	445	}
241		446
		447	static int
242	static int req_invoke (eio_req *req)	448	req_invoke (eio_req *req)
243	{	449	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	450	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	451	SvREADONLY_off (req->sv2);
248		452
249	if (!EIO_CANCELLED (req) && req->callback)	453	if (!EIO_CANCELLED (req) && req->callback)
250	{	454	{
		455	dSP;
		456	static SV *sv_result_cache; /* caches the result integer SV */
		457	SV *sv_result;
		458
251	ENTER;	459	ENTER;
252	SAVETMPS;	460	SAVETMPS;
253	PUSHMARK (SP);	461	PUSHMARK (SP);
254	EXTEND (SP, 1);	462	EXTEND (SP, 1);
255		463
		464	/* do not recreate the result IV from scratch each time */
		465	if (expect_true (sv_result_cache))
		466	{
		467	sv_result = sv_result_cache; sv_result_cache = 0;
		468	SvIV_set (sv_result, req->result);
		469	SvIOK_only (sv_result);
		470	}
		471	else
		472	{
		473	sv_result = newSViv (req->result);
		474	SvREADONLY_on (sv_result);
		475	}
		476
256	switch (req->type)	477	switch (req->type)
257	{	478	{
		479	case EIO_WD_OPEN:
		480	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		481	break;
		482
258	case EIO_READDIR:	483	case EIO_READDIR:
259	{	484	{
260	SV *rv = &PL_sv_undef;	485	SV *rv = &PL_sv_undef;
261		486
262	if (req->result >= 0)	487	if (req->result >= 0)
…		…
345		570
346	PUSHs (fh);	571	PUSHs (fh);
347	}	572	}
348	break;	573	break;
349		574
		575	case EIO_STATVFS:
		576	case EIO_FSTATVFS:
		577	{
		578	SV *rv = &PL_sv_undef;
		579
		580	#ifndef _WIN32
		581	if (req->result >= 0)
		582	{
		583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		584	HV *hv = newHV ();
		585
		586	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		587
		588	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		589	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		590	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		591	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		592	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		593	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		594	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		599	}
		600	#endif
		601
		602	PUSHs (rv);
		603	}
		604
		605	break;
		606
350	case EIO_GROUP:	607	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	608	req->int1 = 2; /* mark group as finished */
352		609
353	if (req->sv1)	610	if (req->sv1)
354	{	611	{
…		…
364	case EIO_NOP:	621	case EIO_NOP:
365	case EIO_BUSY:	622	case EIO_BUSY:
366	break;	623	break;
367		624
368	case EIO_READLINK:	625	case EIO_READLINK:
		626	case EIO_REALPATH:
369	if (req->result > 0)	627	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	628	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	629	break;
372		630
373	case EIO_STAT:	631	case EIO_STAT:
374	case EIO_LSTAT:	632	case EIO_LSTAT:
375	case EIO_FSTAT:	633	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	634	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		635
377	PL_laststatval = req->result;	636	if (!(PL_laststatval = req->result))
		637	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	638	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	639
		640	PUSHs (sv_result);
		641	break;
		642
		643	case EIO_SEEK:
		644	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	645	break;
381		646
382	case EIO_READ:	647	case EIO_READ:
383	{	648	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	649	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	650	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	651	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	652	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	653	PUSHs (sv_result);
389	}	654	}
390	break;	655	break;
391		656
392	case EIO_DUP2:	657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	658	if (req->result > 0)
394	req->result = 0;	659	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	660	/* FALLTHROUGH */
396		661
397	default:	662	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	663	PUSHs (sv_result);
399	break;	664	break;
400	}	665	}
401		666
402	errno = req->errorno;	667	errno = req->errorno;
403		668
404	PUTBACK;	669	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	670	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	671	SPAGAIN;
407		672
		673	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		674	SvREFCNT_dec (sv_result);
		675	else
		676	sv_result_cache = sv_result;
		677
408	FREETMPS;	678	FREETMPS;
409	LEAVE;	679	LEAVE;
410		680
411	PUTBACK;	681	PUTBACK;
412	}	682	}
413		683
414	return !!SvTRUE (ERRSV);	684	return !!SvTRUE (ERRSV);
415	}	685	}
416		686
		687	static void
417	static void req_destroy (aio_req req)	688	req_destroy (aio_req req)
418	{	689	{
419	if (req->self)	690	if (req->self)
420	{	691	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	692	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	693	SvREFCNT_dec (req->self);
423	}	694	}
424		695
425	SvREFCNT_dec (req->sv1);	696	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	697	SvREFCNT_dec (req->sv2);
		698	SvREFCNT_dec (req->sv3);
		699	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	700	SvREFCNT_dec (req->callback);
428		701
429	Safefree (req);	702	free (req);
430	}	703	}
431		704
		705	static void
432	static void req_cancel_subs (aio_req grp)	706	req_cancel_subs (aio_req grp)
433	{	707	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	708	if (grp->type != EIO_GROUP)
437	return;	709	return;
438		710
439	SvREFCNT_dec (grp->sv2);	711	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	712	grp->sv2 = 0;
441		713
442	eio_grp_cancel (grp);	714	eio_grp_cancel (grp);
443	}	715	}
444		716
445	static void	717	static void ecb_cold
446	create_respipe (void)	718	create_respipe (void)
447	{	719	{
448	if (s_epipe_renew (&respipe))	720	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	721	croak ("IO::AIO: unable to initialize result pipe");
450	}	722	}
451		723
452	static void poll_wait (void)	724	static void
		725	poll_wait (void)
453	{	726	{
454	while (eio_nreqs ())	727	while (eio_nreqs ())
455	{	728	{
456	int size;	729	int size;
457		730
…		…
466		739
467	s_epipe_wait (&respipe);	740	s_epipe_wait (&respipe);
468	}	741	}
469	}	742	}
470		743
471	static int poll_cb (void)	744	static int
		745	poll_cb (void)
472	{	746	{
473	for (;;)	747	for (;;)
474	{	748	{
475	int res = eio_poll ();	749	int res = eio_poll ();
476		750
…		…
482		756
483	poll_wait ();	757	poll_wait ();
484	}	758	}
485	}	759	}
486		760
487	static void atfork_child (void)	761	static void ecb_cold
		762	reinit (void)
488	{	763	{
489	create_respipe ();	764	create_respipe ();
		765
		766	if (eio_init (want_poll, done_poll) < 0)
		767	croak ("IO::AIO: unable to initialise eio library");
490	}	768	}
		769
		770	/*****************************************************************************/
		771
		772	#if !_POSIX_MAPPED_FILES
		773	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		774	# define munmap(addr,length) (errno = ENOSYS, -1)
		775	#endif
		776
		777	#if !_POSIX_MEMORY_PROTECTION
		778	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		779	# define PROT_NONE 0
		780	# define PROT_WRITE 0
		781	# define MAP_PRIVATE 0
		782	# define MAP_SHARED 0
		783	# define MAP_FIXED 0
		784	#endif
		785
		786	#define MMAP_MAGIC PERL_MAGIC_ext
		787
		788	static int ecb_cold
		789	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		790	{
		791	int old_errno = errno;
		792	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		793	errno = old_errno;
		794
		795	mg->mg_obj = 0; /* just in case */
		796
		797	SvREADONLY_off (sv);
		798
		799	if (SvPVX (sv) != mg->mg_ptr)
		800	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		801
		802	SvCUR_set (sv, 0);
		803	SvPVX (sv) = 0;
		804	SvOK_off (sv);
		805
		806	return 0;
		807	}
		808
		809	static MGVTBL mmap_vtbl = {
		810	0, 0, 0, 0, mmap_free
		811	};
		812
		813	/*****************************************************************************/
491		814
492	static SV *	815	static SV *
493	get_cb (SV *cb_sv)	816	get_cb (SV *cb_sv)
494	{	817	{
495	SvGETMAGIC (cb_sv);	818	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	819	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	820	}
498		821
		822	static aio_req ecb_noinline
		823	dreq (SV *callback)
		824	{
		825	SV *cb_cv;
		826	aio_req req;
		827	int req_pri = next_pri;
		828	next_pri = EIO_PRI_DEFAULT;
		829
		830	cb_cv = get_cb (callback);
		831
		832	req = calloc (sizeof (*req), 1);
		833	if (!req)
		834	croak ("out of memory during eio_req allocation");
		835
		836	req->callback = SvREFCNT_inc (cb_cv);
		837	req->pri = req_pri;
		838
		839	return req;
		840	}
		841
499	#define dREQ \	842	#define dREQ \
500	SV *cb_cv; \	843	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		844
514	#define REQ_SEND \	845	#define REQ_SEND \
515	PUTBACK; \	846	PUTBACK; \
516	req_submit (req); \	847	req_submit (req); \
517	SPAGAIN; \	848	SPAGAIN; \
518	\	849	\
519	if (GIMME_V != G_VOID) \	850	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	851	XPUSHs (req_sv (req, aio_req_stash));
521		852
		853	ecb_inline void
		854	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		855	{
		856	if (expect_false (SvROK (path)))
		857	{
		858	SV *rv = SvRV (path);
		859	SV *wdob;
		860
		861	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		862	{
		863	path = AvARRAY (rv)[1];
		864	wdob = AvARRAY (rv)[0];
		865
		866	if (SvOK (wdob))
		867	{
		868	*wd = SvAIO_WD (wdob);
		869	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		870	}
		871	else
		872	*wd = EIO_INVALID_WD;
		873	}
		874	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		875	{
		876	*wd = (aio_wd)(long)SvIVX (rv);
		877	*wdsv = SvREFCNT_inc_NN (rv);
		878	*ptr = ".";
		879	return; /* path set to "." */
		880	}
		881	else
		882	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		883	}
		884
		885	*pathsv = newSVsv (path);
		886	*ptr = SvPVbyte_nolen (*pathsv);
		887	}
		888
		889	static void ecb_noinline
		890	req_set_path1 (aio_req req, SV *path)
		891	{
		892	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		893	}
		894
		895	static void ecb_noinline
		896	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		897	{
		898	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		899
		900	switch (SvTYPE (rv))
		901	{
		902	case SVt_PVIO:
		903	case SVt_PVLV:
		904	case SVt_PVGV:
		905	req->type = type_fh;
		906	req->sv1 = newSVsv (fh_or_path);
		907	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		908	break;
		909
		910	default:
		911	req->type = type_path;
		912	req_set_path1 (req, fh_or_path);
		913	break;
		914	}
		915	}
		916
		917	XS(boot_IO__AIO) ecb_cold;
		918
522	MODULE = IO::AIO PACKAGE = IO::AIO	919	MODULE = IO::AIO PACKAGE = IO::AIO
523		920
524	PROTOTYPES: ENABLE	921	PROTOTYPES: ENABLE
525		922
526	BOOT:	923	BOOT:
527	{	924	{
528	static const struct {	925	static const struct {
529	const char *name;	926	const char *name;
530	IV iv;	927	IV iv;
531	} *civ, const_iv[] = {	928	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	929	# define const_niv(name, value) { # name, (IV) value },
		930	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	931	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	932	const_iv (EXDEV)
535	const_iv (ENOSYS , ENOSYS)	933	const_iv (ENOSYS)
536	const_iv (O_RDONLY, O_RDONLY)	934	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	935	const_iv (O_WRONLY)
		936	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	937	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	938	const_iv (O_TRUNC)
540	#ifndef _WIN32	939	const_iv (O_EXCL)
		940	const_iv (O_APPEND)
		941
		942	const_iv (O_ASYNC)
		943	const_iv (O_DIRECT)
		944	const_iv (O_NOATIME)
		945
		946	const_iv (O_CLOEXEC)
		947	const_iv (O_NOCTTY)
		948	const_iv (O_NOFOLLOW)
		949	const_iv (O_NONBLOCK)
		950	const_iv (O_EXEC)
		951	const_iv (O_SEARCH)
		952	const_iv (O_DIRECTORY)
		953	const_iv (O_DSYNC)
		954	const_iv (O_RSYNC)
		955	const_iv (O_SYNC)
		956	const_iv (O_TTY_INIT)
		957
541	const_iv (S_IFIFO , S_IFIFO)	958	const_iv (S_IFIFO)
542	#endif	959	const_iv (S_IFCHR)
		960	const_iv (S_IFBLK)
		961	const_iv (S_IFLNK)
		962	const_iv (S_IFREG)
		963	const_iv (S_IFDIR)
		964	const_iv (S_IFWHT)
		965	const_iv (S_IFSOCK)
		966	const_iv (S_IFMT)
		967
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	973	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		974
		975	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		976	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		977	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		978	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		979	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		980
		981	const_iv (ST_RDONLY)
		982	const_iv (ST_NOSUID)
		983	const_iv (ST_NODEV)
		984	const_iv (ST_NOEXEC)
		985	const_iv (ST_SYNCHRONOUS)
		986	const_iv (ST_MANDLOCK)
		987	const_iv (ST_WRITE)
		988	const_iv (ST_APPEND)
		989	const_iv (ST_IMMUTABLE)
		990	const_iv (ST_NOATIME)
		991	const_iv (ST_NODIRATIME)
		992	const_iv (ST_RELATIME)
		993
		994	const_iv (PROT_NONE)
		995	const_iv (PROT_EXEC)
		996	const_iv (PROT_READ)
		997	const_iv (PROT_WRITE)
		998
		999	/*const_iv (MAP_FIXED)*/
		1000	const_iv (MAP_PRIVATE)
		1001	const_iv (MAP_SHARED)
		1002	const_iv (MAP_ANONYMOUS)
		1003
		1004	/* linuxish */
		1005	const_iv (MAP_HUGETLB)
		1006	const_iv (MAP_LOCKED)
		1007	const_iv (MAP_NORESERVE)
		1008	const_iv (MAP_POPULATE)
		1009	const_iv (MAP_NONBLOCK)
		1010
		1011	const_eio (SEEK_SET)
		1012	const_eio (SEEK_CUR)
		1013	const_eio (SEEK_END)
		1014
		1015	const_eio (MCL_FUTURE)
		1016	const_eio (MCL_CURRENT)
549		1017
550	const_eio (MS_ASYNC)	1018	const_eio (MS_ASYNC)
551	const_eio (MS_INVALIDATE)	1019	const_eio (MS_INVALIDATE)
552	const_eio (MS_SYNC)	1020	const_eio (MS_SYNC)
553		1021
554	const_eio (MT_MODIFY)	1022	const_eio (MT_MODIFY)
555		1023
556	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
557	const_eio (SYNC_FILE_RANGE_WRITE)	1025	const_eio (SYNC_FILE_RANGE_WRITE)
558	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1027
		1028	const_eio (FALLOC_FL_KEEP_SIZE)
559		1029
560	const_eio (READDIR_DENTS)	1030	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	1031	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	1032	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1033	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1044	};
575		1045
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1046	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1047	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1048	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1049	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
579		1050
580	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1051	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));	1052	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1053
583	create_respipe ();	1054	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1055
585	if (eio_init (want_poll, done_poll) < 0)	1056	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	}	1057	}
591		1058
592	void	1059	void
		1060	reinit ()
		1061	PROTOTYPE:
		1062
		1063	void
593	max_poll_reqs (int nreqs)	1064	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1065	PROTOTYPE: $
595	CODE:	1066	CODE:
596	eio_set_max_poll_reqs (nreqs);	1067	eio_set_max_poll_reqs (nreqs);
597		1068
598	void	1069	void
…		…
600	PROTOTYPE: $	1071	PROTOTYPE: $
601	CODE:	1072	CODE:
602	eio_set_max_poll_time (nseconds);	1073	eio_set_max_poll_time (nseconds);
603		1074
604	void	1075	void
605	min_parallel (int nthreads)	1076	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1077	PROTOTYPE: $
607	CODE:	1078	CODE:
608	eio_set_min_parallel (nthreads);	1079	eio_set_min_parallel (nthreads);
609		1080
610	void	1081	void
611	max_parallel (int nthreads)	1082	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1083	PROTOTYPE: $
613	CODE:	1084	CODE:
614	eio_set_max_parallel (nthreads);	1085	eio_set_max_parallel (nthreads);
615		1086
616	void	1087	void
617	max_idle (int nthreads)	1088	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1089	PROTOTYPE: $
619	CODE:	1090	CODE:
620	eio_set_max_idle (nthreads);	1091	eio_set_max_idle (nthreads);
621		1092
622	void	1093	void
		1094	idle_timeout (unsigned int seconds)
		1095	PROTOTYPE: $
		1096	CODE:
		1097	eio_set_idle_timeout (seconds);
		1098
		1099	void
623	max_outstanding (int maxreqs)	1100	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1101	PROTOTYPE: $
625	CODE:	1102	CODE:
626	max_outstanding = maxreqs;	1103	max_outstanding = maxreqs;
627		1104
628	void	1105	void
		1106	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1107	PPCODE:
		1108	{
		1109	dREQ;
		1110
		1111	req->type = EIO_WD_OPEN;
		1112	req_set_path1 (req, pathname);
		1113
		1114	REQ_SEND;
		1115	}
		1116
		1117	void
629	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1118	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
630	PROTOTYPE: $$$;$
631	PPCODE:	1119	PPCODE:
632	{	1120	{
633	dREQ;	1121	dREQ;
634		1122
635	req->type = EIO_OPEN;	1123	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1124	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1125	req->int1 = flags;
639	req->int2 = mode;	1126	req->int2 = mode;
640		1127
641	REQ_SEND;	1128	REQ_SEND;
642	}	1129	}
643		1130
644	void	1131	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1133	ALIAS:
648	aio_fsync = EIO_FSYNC	1134	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1135	aio_fdatasync = EIO_FDATASYNC
		1136	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1137	PPCODE:
651	{	1138	{
652	int fd = s_fileno_croak (fh, 0);	1139	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1140	dREQ;
654		1141
655	req->type = ix;	1142	req->type = ix;
656	req->sv1 = newSVsv (fh);	1143	req->sv1 = newSVsv (fh);
657	req->int1 = fd;	1144	req->int1 = fd;
658		1145
659	REQ_SEND (req);	1146	REQ_SEND;
660	}	1147	}
661		1148
662	void	1149	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1151	PPCODE:
666	{	1152	{
667	int fd = s_fileno_croak (fh, 0);	1153	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1154	dREQ;
669		1155
…		…
672	req->int1 = fd;	1158	req->int1 = fd;
673	req->offs = offset;	1159	req->offs = offset;
674	req->size = nbytes;	1160	req->size = nbytes;
675	req->int2 = flags;	1161	req->int2 = flags;
676		1162
677	REQ_SEND (req);	1163	REQ_SEND;
678	}	1164	}
679		1165
680	void	1166	void
681	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
682	PROTOTYPE: $;$
683	PPCODE:	1168	PPCODE:
684	{	1169	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1170	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1171	dREQ;
688		1172
689	if (close_pipe < 0)	1173	req->type = EIO_FALLOCATE;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->int2 = mode;
		1177	req->offs = offset;
		1178	req->size = len;
		1179
		1180	REQ_SEND;
		1181	}
		1182
		1183	void
		1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1185	PPCODE:
		1186	{
		1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1188	int fd = s_fileno_croak (fh, 0);
		1189	dREQ;
		1190
		1191	if (expect_false (close_fd < 0))
690	{	1192	{
691	int pipefd [2];	1193	int pipefd [2];
692		1194
		1195	if (
		1196	#ifdef _WIN32
		1197	_pipe (pipefd, 1, _O_BINARY) < 0
		1198	#else
693	if (pipe (pipefd) < 0	1199	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1200	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1201	#endif
		1202	|| close (pipefd [1]) < 0
		1203	)
696	abort (); /*D*/	1204	abort (); /*D*/
697		1205
698	close_pipe = pipefd [0];	1206	close_fd = pipefd [0];
699	}	1207	}
700		1208
701	req->type = EIO_DUP2;	1209	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1210	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1211	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1212	req->int2 = fd;
705		1213
706	REQ_SEND (req);	1214	REQ_SEND;
		1215	}
		1216
		1217	void
		1218	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1219	PPCODE:
		1220	{
		1221	STRLEN svlen;
		1222	int fd = s_fileno_croak (fh, 0);
		1223	dREQ;
		1224
		1225	req->type = EIO_SEEK;
		1226	req->sv1 = newSVsv (fh);
		1227	req->int1 = fd;
		1228	req->offs = SvVAL64 (offset);
		1229	req->int2 = whence;
		1230
		1231	REQ_SEND;
707	}	1232	}
708		1233
709	void	1234	void
710	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1235	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
711	ALIAS:	1236	ALIAS:
712	aio_read = EIO_READ	1237	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1238	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1239	PPCODE:
716	{	1240	{
717	STRLEN svlen;	1241	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1242	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1243	char *svptr = SvPVbyte (data, svlen);
…		…
759	REQ_SEND;	1283	REQ_SEND;
760	}	1284	}
761	}	1285	}
762		1286
763	void	1287	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
765	PROTOTYPE: $$;$	1289	ALIAS:
		1290	aio_readlink = EIO_READLINK
		1291	aio_realpath = EIO_REALPATH
766	PPCODE:	1292	PPCODE:
767	{	1293	{
768	SV *data;
769	dREQ;	1294	dREQ;
770		1295
771	req->type = EIO_READLINK;	1296	req->type = ix;
772	req->sv1 = newSVsv (path);	1297	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1298
775	REQ_SEND;	1299	REQ_SEND;
776	}	1300	}
777		1301
778	void	1302	void
779	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1303	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1304	PPCODE:
782	{	1305	{
783	int ifd = s_fileno_croak (in_fh , 0);	1306	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1307	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1308	dREQ;
…		…
795	REQ_SEND;	1318	REQ_SEND;
796	}	1319	}
797		1320
798	void	1321	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1323	PPCODE:
802	{	1324	{
803	int fd = s_fileno_croak (fh, 0);	1325	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1326	dREQ;
805		1327
…		…
813	}	1335	}
814		1336
815	void	1337	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1338	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
817	ALIAS:	1339	ALIAS:
818	aio_stat = EIO_STAT	1340	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1341	aio_lstat = EIO_LSTAT
		1342	aio_statvfs = EIO_STATVFS
820	PPCODE:	1343	PPCODE:
821	{	1344	{
822	dREQ;	1345	dREQ;
823		1346
824	req->sv1 = newSVsv (fh_or_path);	1347	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		1348
837	REQ_SEND;	1349	REQ_SEND;
838	}	1350	}
		1351
		1352	UV
		1353	major (UV dev)
		1354	ALIAS:
		1355	minor = 1
		1356	CODE:
		1357	RETVAL = ix ? major (dev) : minor (dev);
		1358	OUTPUT:
		1359	RETVAL
		1360
		1361	UV
		1362	makedev (UV maj, UV min)
		1363	CODE:
		1364	RETVAL = makedev (maj, min);
		1365	OUTPUT:
		1366	RETVAL
839		1367
840	void	1368	void
841	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1369	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
842	PPCODE:	1370	PPCODE:
843	{	1371	{
844	dREQ;	1372	dREQ;
845		1373
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1375	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1376	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		1377
861	REQ_SEND;	1378	REQ_SEND;
862	}	1379	}
863		1380
864	void	1381	void
865	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1382	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
866	PPCODE:	1383	PPCODE:
867	{	1384	{
868	dREQ;	1385	dREQ;
869		1386
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1388	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		1389
884	REQ_SEND;	1390	REQ_SEND;
885	}	1391	}
886		1392
887	void	1393	void
888	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1394	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:	1395	PPCODE:
893	{	1396	{
894	dREQ;	1397	dREQ;
895		1398
896	req->int2 = mode;	1399	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1400	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		1401
910	REQ_SEND;	1402	REQ_SEND;
911	}	1403	}
912		1404
913	void	1405	void
…		…
916	{	1408	{
917	dREQ;	1409	dREQ;
918		1410
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1412	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1413	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		1414
934	REQ_SEND;	1415	REQ_SEND;
935	}	1416	}
936		1417
937	void	1418	void
…		…
939	PPCODE:	1420	PPCODE:
940	{	1421	{
941	dREQ;	1422	dREQ;
942		1423
943	req->type = EIO_READDIR;	1424	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;	1425	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1426
948	if (flags & EIO_READDIR_DENTS)	1427	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1428	req->int1 |= EIO_READDIR_CUSTOM2;
950		1429
		1430	req_set_path1 (req, pathname);
		1431
951	REQ_SEND;	1432	REQ_SEND;
		1433	}
		1434
		1435	void
		1436	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1437	PPCODE:
		1438	{
		1439	dREQ;
		1440
		1441	req->type = EIO_MKDIR;
		1442	req->int2 = mode;
		1443	req_set_path1 (req, pathname);
		1444
		1445	REQ_SEND;
952	}	1446	}
953		1447
954	void	1448	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
956	ALIAS:	1450	ALIAS:
…		…
960	PPCODE:	1454	PPCODE:
961	{	1455	{
962	dREQ;	1456	dREQ;
963		1457
964	req->type = ix;	1458	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1459	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1460
968	REQ_SEND;	1461	REQ_SEND;
969	}	1462	}
970		1463
971	void	1464	void
…		…
974	aio_link = EIO_LINK	1467	aio_link = EIO_LINK
975	aio_symlink = EIO_SYMLINK	1468	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1469	aio_rename = EIO_RENAME
977	PPCODE:	1470	PPCODE:
978	{	1471	{
		1472	eio_wd wd2 = 0;
979	dREQ;	1473	dREQ;
980		1474
981	req->type = ix;	1475	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1476	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1477	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1478	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1479
987	REQ_SEND;	1480	REQ_SEND;
988	}	1481	}
989		1482
990	void	1483	void
…		…
992	PPCODE:	1485	PPCODE:
993	{	1486	{
994	dREQ;	1487	dREQ;
995		1488
996	req->type = EIO_MKNOD;	1489	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1490	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1491	req->offs = dev;
		1492	req_set_path1 (req, pathname);
1001		1493
1002	REQ_SEND;	1494	REQ_SEND;
1003	}	1495	}
1004		1496
1005	void	1497	void
1006	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1007	ALIAS:	1499	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1500	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1501	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1502	PPCODE:
1012	{	1503	{
1013	STRLEN svlen;	1504	STRLEN svlen;
		1505	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1506	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);
1016		1507
1017	if (offset < 0)	1508	if (offset < 0)
1018	offset += svlen;	1509	offset += svlen;
1019		1510
1020	if (offset < 0 || offset > svlen)	1511	if (offset < 0 || offset > svlen)
…		…
1025		1516
1026	{	1517	{
1027	dREQ;	1518	dREQ;
1028		1519
1029	req->type = ix;	1520	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1521	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1522	req->ptr2 = (char *)svptr + offset;
		1523	req->size = len;
1033	req->int1 = flags;	1524	req->int1 = flags;
1034		1525
1035	REQ_SEND;	1526	REQ_SEND;
1036	}	1527	}
1037	}	1528	}
1038		1529
1039	void	1530	void
		1531	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1532	PPCODE:
		1533	{
		1534	STRLEN svlen;
		1535	char *svptr = SvPVbyte (data, svlen);
		1536	UV len = SvUV (length);
		1537
		1538	if (offset < 0)
		1539	offset += svlen;
		1540
		1541	if (offset < 0 || offset > svlen)
		1542	croak ("offset outside of scalar");
		1543
		1544	if (!SvOK (length) || len + offset > svlen)
		1545	len = svlen - offset;
		1546
		1547	{
		1548	dREQ;
		1549
		1550	req->type = EIO_MLOCK;
		1551	req->sv2 = SvREFCNT_inc (data);
		1552	req->ptr2 = (char *)svptr + offset;
		1553	req->size = len;
		1554
		1555	REQ_SEND;
		1556	}
		1557	}
		1558
		1559	void
		1560	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1561	PPCODE:
		1562	{
		1563	dREQ;
		1564
		1565	req->type = EIO_MLOCKALL;
		1566	req->int1 = flags;
		1567
		1568	REQ_SEND;
		1569	}
		1570
		1571	void
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1572	aio_busy (double delay, SV *callback=&PL_sv_undef)
1041	PPCODE:	1573	PPCODE:
1042	{	1574	{
1043	dREQ;	1575	dREQ;
1044		1576
…		…
1048	REQ_SEND;	1580	REQ_SEND;
1049	}	1581	}
1050		1582
1051	void	1583	void
1052	aio_group (SV *callback=&PL_sv_undef)	1584	aio_group (SV *callback=&PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1585	PPCODE:
1055	{	1586	{
1056	dREQ;	1587	dREQ;
1057		1588
1058	req->type = EIO_GROUP;	1589	req->type = EIO_GROUP;
…		…
1075	REQ_SEND;	1606	REQ_SEND;
1076	}	1607	}
1077		1608
1078	int	1609	int
1079	aioreq_pri (int pri = 0)	1610	aioreq_pri (int pri = 0)
1080	PROTOTYPE: ;$
1081	CODE:	1611	CODE:
1082	RETVAL = next_pri;	1612	RETVAL = next_pri;
1083	if (items > 0)	1613	if (items > 0)
1084	{	1614	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1627	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1628	next_pri = nice;
1099		1629
1100	void	1630	void
1101	flush ()	1631	flush ()
1102	PROTOTYPE:
1103	CODE:	1632	CODE:
1104	while (eio_nreqs ())	1633	while (eio_nreqs ())
1105	{	1634	{
1106	poll_wait ();	1635	poll_wait ();
1107	poll_cb ();	1636	poll_cb ();
1108	}	1637	}
1109		1638
1110	int	1639	int
1111	poll()	1640	poll ()
1112	PROTOTYPE:
1113	CODE:	1641	CODE:
1114	poll_wait ();	1642	poll_wait ();
1115	RETVAL = poll_cb ();	1643	RETVAL = poll_cb ();
1116	OUTPUT:	1644	OUTPUT:
1117	RETVAL	1645	RETVAL
1118		1646
1119	int	1647	int
1120	poll_fileno()	1648	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1649	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1650	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1651	OUTPUT:
1125	RETVAL	1652	RETVAL
1126		1653
1127	int	1654	int
1128	poll_cb(...)	1655	poll_cb (...)
1129	PROTOTYPE:	1656	PROTOTYPE:
1130	CODE:	1657	CODE:
1131	RETVAL = poll_cb ();	1658	RETVAL = poll_cb ();
1132	OUTPUT:	1659	OUTPUT:
1133	RETVAL	1660	RETVAL
1134		1661
1135	void	1662	void
1136	poll_wait()	1663	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1664	CODE:
1139	poll_wait ();	1665	poll_wait ();
1140		1666
1141	int	1667	int
1142	nreqs()	1668	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1669	CODE:
1145	RETVAL = eio_nreqs ();	1670	RETVAL = eio_nreqs ();
1146	OUTPUT:	1671	OUTPUT:
1147	RETVAL	1672	RETVAL
1148		1673
1149	int	1674	int
1150	nready()	1675	nready ()
1151	PROTOTYPE:
1152	CODE:	1676	CODE:
1153	RETVAL = eio_nready ();	1677	RETVAL = eio_nready ();
1154	OUTPUT:	1678	OUTPUT:
1155	RETVAL	1679	RETVAL
1156		1680
1157	int	1681	int
1158	npending()	1682	npending ()
1159	PROTOTYPE:
1160	CODE:	1683	CODE:
1161	RETVAL = eio_npending ();	1684	RETVAL = eio_npending ();
1162	OUTPUT:	1685	OUTPUT:
1163	RETVAL	1686	RETVAL
1164		1687
1165	int	1688	int
1166	nthreads()	1689	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1690	CODE:
1169	RETVAL = eio_nthreads ();	1691	RETVAL = eio_nthreads ();
1170	OUTPUT:	1692	OUTPUT:
1171	RETVAL	1693	RETVAL
1172		1694
1173	int	1695	int
1174	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1696	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1175	PROTOTYPE: $$$$
1176	CODE:	1697	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1698	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1699	OUTPUT:
1183	RETVAL	1700	RETVAL
1184		1701
1185	ssize_t	1702	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1703	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1704	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1706	OUTPUT:
1191	RETVAL	1707	RETVAL
1192		1708
		1709	void
		1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1711	PPCODE:
		1712	sv_unmagic (scalar, MMAP_MAGIC);
		1713	{
		1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1716	if (addr == (void *)-1)
		1717	XSRETURN_NO;
		1718
		1719	sv_force_normal (scalar);
		1720
		1721	/* we store the length in mg_obj, as namlen is I32 :/ */
		1722	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1723	->mg_obj = (SV *)length;
		1724
		1725	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1726
		1727	if (!(prot & PROT_WRITE))
		1728	SvREADONLY_on (scalar);
		1729
		1730	if (SvLEN (scalar))
		1731	Safefree (SvPVX (scalar));
		1732
		1733	SvPVX (scalar) = (char *)addr;
		1734	SvCUR_set (scalar, length);
		1735	SvLEN_set (scalar, 0);
		1736	SvPOK_only (scalar);
		1737
		1738	XSRETURN_YES;
		1739	}
		1740
		1741	void
		1742	munmap (SV *scalar)
		1743	CODE:
		1744	sv_unmagic (scalar, MMAP_MAGIC);
		1745
		1746	int
		1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1748	ALIAS:
		1749	mprotect = 1
		1750	CODE:
		1751	{
		1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
		1755
		1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
		1763	len = svlen - offset;
		1764
		1765	addr = (void *)(((intptr_t)addr) + offset);
		1766	eio_page_align (&addr, &len);
		1767
		1768	switch (ix)
		1769	{
		1770	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1771	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1772	}
		1773	}
		1774	OUTPUT:
		1775	RETVAL
		1776
		1777	int
		1778	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1779	CODE:
		1780	{
		1781	STRLEN svlen;
		1782	void *addr = SvPVbyte (scalar, svlen);
		1783	size_t len = SvUV (length);
		1784
		1785	if (offset < 0)
		1786	offset += svlen;
		1787
		1788	if (offset < 0 || offset > svlen)
		1789	croak ("offset outside of scalar");
		1790
		1791	if (!SvOK (length) || len + offset > svlen)
		1792	len = svlen - offset;
		1793
		1794	addr = (void *)(((intptr_t)addr) + offset);
		1795	eio_page_align (&addr, &len);
		1796	#if _POSIX_MEMLOCK_RANGE
		1797	RETVAL = munlock (addr, len);
		1798	#else
		1799	RETVAL = ((errno = ENOSYS), -1);
		1800	#endif
		1801	}
		1802	OUTPUT:
		1803	RETVAL
		1804
		1805	int
		1806	munlockall ()
		1807	CODE:
		1808	#if _POSIX_MEMLOCK
		1809	munlockall ();
		1810	#else
		1811	RETVAL = -1;
		1812	errno = ENOSYS;
		1813	#endif
		1814	OUTPUT:
		1815	RETVAL
		1816
1193	void _on_next_submit (SV *cb)	1817	void _on_next_submit (SV *cb)
1194	CODE:	1818	CODE:
1195	SvREFCNT_dec (on_next_submit);	1819	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		1821
1198	PROTOTYPES: DISABLE	1822	PROTOTYPES: DISABLE
1199		1823
		1824	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1825
		1826	BOOT:
		1827	{
		1828	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1829	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1830	}
		1831
		1832	void
		1833	DESTROY (SV *self)
		1834	CODE:
		1835	{
		1836	aio_wd wd = SvAIO_WD (self);
		1837	#if HAVE_AT
		1838	{
		1839	SV *callback = &PL_sv_undef;
		1840	dREQ; /* clobbers next_pri :/ */
		1841	next_pri = req->pri; /* restore next_pri */
		1842	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1843	req->type = EIO_WD_CLOSE;
		1844	req->wd = wd;
		1845	REQ_SEND;
		1846	}
		1847	#else
		1848	eio_wd_close_sync (wd);
		1849	#endif
		1850	}
		1851
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1852	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		1853
1202	void	1854	void
1203	cancel (aio_req_ornot req)	1855	cancel (aio_req_ornot req)
1204	CODE:	1856	CODE:

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