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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.123 by root, Sat May 17 12:17:25 2008 UTC vs.
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 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		26
		27	/* perl stupidly overrides readdir and maybe others */
		28	/* with thread-unsafe versions, imagine that :( */
		29	#undef readdir
		30	#undef opendir
		31	#undef closedir
		32
21	#ifdef _WIN32	33	#ifdef _WIN32
22		34
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
28	# undef open	39	#undef open
29	# undef read	40	#undef read
30	# undef write	41	#undef write
31	# undef send	42	#undef send
32	# undef recv	43	#undef recv
33	# undef stat	44	#undef stat
		45	#undef lstat
34	# undef fstat	46	#undef fstat
35	# define lstat stat
36	# undef truncate	47	#undef truncate
37	# undef ftruncate	48	#undef ftruncate
38	# undef open	49	#undef open
		50	#undef link
39	# undef close	51	#undef close
40	# undef unlink	52	#undef unlink
		53	#undef mkdir
41	# undef rmdir	54	#undef rmdir
42	# undef rename	55	#undef rename
43	# undef lseek	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
44		66
45	# define chown(a,b,c) (errno = ENOSYS, -1)	67	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	68	#define EIO_STRUCT_STATI64
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		69
59	#else	70	#else
60		71
61	# include <sys/time.h>	72	#include <sys/time.h>
62	# include <sys/select.h>	73	#include <sys/select.h>
63	# include <unistd.h>	74	#include <unistd.h>
64	# include <utime.h>	75	#include <utime.h>
65	# include <signal.h>	76	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		77
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
		79
		80	#endif
71		81
72	/* use NV for 32 bit perls as it allows larger offsets */	82	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	83	#if IVSIZE >= 8
		84	# define VAL64 IV
74	# define SvVAL64 SvIV	85	# define SvVAL64 SvIV
		86	# define newSVval64 newSViv
75	#else	87	#else
		88	# define VAL64 NV
76	# define SvVAL64 SvNV	89	# define SvVAL64 SvNV
		90	# define newSVval64 newSVnv
77	#endif	91	#endif
78		92
79	static HV *stash;	93	/*****************************************************************************/
		94
		95	#if __GNUC__ >= 3
		96	# define expect(expr,value) __builtin_expect ((expr),(value))
		97	#else
		98	# define expect(expr,value) (expr)
		99	#endif
		100
		101	#define expect_false(expr) expect ((expr) != 0, 0)
		102	#define expect_true(expr) expect ((expr) != 0, 1)
		103
		104	/*****************************************************************************/
		105
80	typedef SV SV8; /* byte-sv, used for argument-checking */	106	typedef SV SV8; /* byte-sv, used for argument-checking */
		107	typedef int aio_rfd; /* read file desriptor */
		108	typedef int aio_wfd; /* write file descriptor */
81		109
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	110	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		111
85	#define EIO_REQ_MEMBERS \	112	#define EIO_REQ_MEMBERS \
86	SV *callback; \	113	SV *callback; \
87	SV *sv1, *sv2; \	114	SV *sv1, *sv2; \
		115	SV *sv3, *sv4; \
88	STRLEN stroffset; \	116	STRLEN stroffset; \
89	SV *self;	117	SV *self;
90		118
91	#define EIO_NO_WRAPPERS 1	119	#define EIO_NO_WRAPPERS 1
92		120
		121	#include "libeio/config.h"
93	#include "libeio/eio.h"	122	#include "libeio/eio.h"
94		123
95	static int req_invoke (eio_req *req);	124	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	125	#define EIO_FINISH(req) req_invoke (req)
97	static void aio_grp_feed (eio_req *grp);
98	#define EIO_FEED(req) aio_grp_feed (req)
99	static void req_destroy (eio_req *grp);	126	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	127	#define EIO_DESTROY(req) req_destroy (req)
		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
101		331
102	enum {	332	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
104	};	334	};
105		335
106	#include "libeio/eio.c"
107
108	typedef eio_req *aio_req;	336	typedef eio_req *aio_req;
109	typedef eio_req *aio_req_ornot;	337	typedef eio_req *aio_req_ornot;
		338	typedef eio_wd aio_wd;
110		339
111	static SV *on_next_submit;	340	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	341	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	342	static int max_outstanding;
114		343
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	344	static s_epipe respipe;
116		345
117	static void req_destroy (aio_req req);	346	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	347	static void req_cancel (aio_req req);
119		348
120	static void want_poll (void)	349	static void
		350	want_poll (void)
121	{	351	{
122	/* write a dummy byte to the pipe so fh becomes ready */	352	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	353	s_epipe_signal (&respipe);
124	}	354	}
125		355
126	static void done_poll (void)	356	static void
		357	done_poll (void)
127	{	358	{
128	/* read any signals sent by the worker threads */	359	/* read any signals sent by the worker threads */
129	char buf [4];	360	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	361	}
133		362
134	/* must be called at most once */	363	/* must be called at most once */
135	static SV *req_sv (aio_req req, const char *klass)	364	static SV *
		365	req_sv (aio_req req, HV *stash)
136	{	366	{
137	if (!req->self)	367	if (!req->self)
138	{	368	{
139	req->self = (SV *)newHV ();	369	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	370	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	371	}
142		372
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	373	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	374	}
145		375
146	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)
147	{	384	{
148	MAGIC *mg;	385	MAGIC *mg;
149		386
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	387	if (!SvROK (sv)
		388	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		389	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		390	&& SvSTASH (SvRV (sv)) != aio_req_stash
		391	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	392	croak ("object of class IO::AIO::REQ expected");
152		393
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	394	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		395
155	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	397	}
157		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
158	static void aio_grp_feed (aio_req grp)	411	aio_grp_feed (aio_req grp)
159	{	412	{
160	if (grp->sv2 && SvOK (grp->sv2))	413	if (grp->sv2 && SvOK (grp->sv2))
161	{	414	{
162	dSP;	415	dSP;
163		416
164	ENTER;	417	ENTER;
165	SAVETMPS;	418	SAVETMPS;
166	PUSHMARK (SP);	419	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	420	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	421	PUTBACK;
169	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	422	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170	SPAGAIN;	423	SPAGAIN;
171	FREETMPS;	424	FREETMPS;
172	LEAVE;	425	LEAVE;
173	}	426	}
174	}	427	}
175		428
		429	static void
176	static void req_submit (eio_req *req)	430	req_submit (eio_req *req)
177	{	431	{
178	eio_submit (req);	432	eio_submit (req);
179		433
180	if (on_next_submit)	434	if (expect_false (on_next_submit))
181	{	435	{
182	dSP;	436	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	437	SV *cb = sv_2mortal (on_next_submit);
184		438
185	on_next_submit = 0;	439	on_next_submit = 0;
…		…
188	PUTBACK;	442	PUTBACK;
189	call_sv (cb, G_DISCARD | G_EVAL);	443	call_sv (cb, G_DISCARD | G_EVAL);
190	}	444	}
191	}	445	}
192		446
		447	static int
193	static int req_invoke (eio_req *req)	448	req_invoke (eio_req *req)
194	{	449	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	450	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	451	SvREADONLY_off (req->sv2);
199		452
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	453	if (!EIO_CANCELLED (req) && req->callback)
201	{	454	{
		455	dSP;
		456	static SV *sv_result_cache; /* caches the result integer SV */
		457	SV *sv_result;
		458
202	ENTER;	459	ENTER;
203	SAVETMPS;	460	SAVETMPS;
204	PUSHMARK (SP);	461	PUSHMARK (SP);
205	EXTEND (SP, 1);	462	EXTEND (SP, 1);
206		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
207	switch (req->type)	477	switch (req->type)
208	{	478	{
		479	case EIO_WD_OPEN:
		480	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		481	break;
		482
209	case EIO_READDIR:	483	case EIO_READDIR:
210	{	484	{
211	SV *rv = &PL_sv_undef;	485	SV *rv = &PL_sv_undef;
212		486
213	if (req->result >= 0)	487	if (req->result >= 0)
214	{	488	{
215	int i;	489	int i;
216	char *buf = req->ptr2;	490	char *names = (char *)req->ptr2;
		491	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217	AV *av = newAV ();	492	AV *av = newAV ();
218		493
219	av_extend (av, req->result - 1);	494	av_extend (av, req->result - 1);
220		495
221	for (i = 0; i < req->result; ++i)	496	for (i = 0; i < req->result; ++i)
222	{	497	{
223	SV *sv = newSVpv (buf, 0);	498	if (req->int1 & EIO_READDIR_DENTS)
		499	{
		500	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		501
		502	if (req->int1 & EIO_READDIR_CUSTOM2)
		503	{
		504	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		505	AV *avent = newAV ();
		506
		507	av_extend (avent, 2);
		508
		509	if (!sv_type [ent->type])
		510	{
		511	sv_type [ent->type] = newSViv (ent->type);
		512	SvREADONLY_on (sv_type [ent->type]);
		513	}
		514
		515	av_store (avent, 0, namesv);
		516	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		517	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		518
		519	av_store (av, i, newRV_noinc ((SV *)avent));
		520	}
		521	else
225	av_store (av, i, sv);	522	av_store (av, i, namesv);
		523
		524	++ent;
		525	}
		526	else
		527	{
		528	SV *name = newSVpv (names, 0);
		529	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	530	names += SvCUR (name) + 1;
		531	}
227	}	532	}
228		533
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	534	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	535	}
231		536
232	PUSHs (rv);	537	PUSHs (rv);
		538
		539	if (req->int1 & EIO_READDIR_CUSTOM1)
		540	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233	}	541	}
234	break;	542	break;
235		543
236	case EIO_OPEN:	544	case EIO_OPEN:
237	{	545	{
…		…
243	GV *gv = (GV *)sv_newmortal ();	551	GV *gv = (GV *)sv_newmortal ();
244	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	552	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245	char sym [64];	553	char sym [64];
246	int symlen;	554	int symlen;
247		555
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	556	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249	gv_init (gv, stash, sym, symlen, 0);	557	gv_init (gv, aio_stash, sym, symlen, 0);
250		558
251	symlen = snprintf (	559	symlen = snprintf (
252	sym,	560	sym,
253	sizeof (sym),	561	sizeof (sym),
254	"%s&=%d",	562	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	563	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result	564	(int)req->result
257	);	565	);
258		566
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	567	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260	fh = (SV *)gv;	568	fh = (SV *)gv;
261	}	569	}
262		570
263	PUSHs (fh);	571	PUSHs (fh);
264	}	572	}
		573	break;
		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
265	break;	605	break;
266		606
267	case EIO_GROUP:	607	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	608	req->int1 = 2; /* mark group as finished */
269		609
…		…
281	case EIO_NOP:	621	case EIO_NOP:
282	case EIO_BUSY:	622	case EIO_BUSY:
283	break;	623	break;
284		624
285	case EIO_READLINK:	625	case EIO_READLINK:
		626	case EIO_REALPATH:
286	if (req->result > 0)	627	if (req->result > 0)
287	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	628	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
288	break;	629	break;
289		630
290	case EIO_STAT:	631	case EIO_STAT:
291	case EIO_LSTAT:	632	case EIO_LSTAT:
292	case EIO_FSTAT:	633	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	634	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		635
294	PL_laststatval = req->result;	636	if (!(PL_laststatval = req->result))
		637	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
295	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	638	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	639
		640	PUSHs (sv_result);
297	break;	641	break;
298		642
		643	case EIO_SEEK:
		644	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		645	break;
		646
299	case EIO_READ:	647	case EIO_READ:
		648	{
300	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));
301	*SvEND (req->sv2) = 0;	650	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	651	SvPOK_only (req->sv2);
		652	SvSETMAGIC (req->sv2);
		653	PUSHs (sv_result);
		654	}
303	break;	655	break;
304		656
305	case EIO_DUP2:	657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
306	if (req->result > 0)	658	if (req->result > 0)
307	req->result = 0;	659	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	660	/* FALLTHROUGH */
309		661
310	default:	662	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	663	PUSHs (sv_result);
312	break;	664	break;
313	}	665	}
314		666
315	errno = req->errorno;	667	errno = req->errorno;
316		668
317	PUTBACK;	669	PUTBACK;
318	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	670	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319	SPAGAIN;	671	SPAGAIN;
320		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
321	FREETMPS;	678	FREETMPS;
322	LEAVE;	679	LEAVE;
323		680
324	PUTBACK;	681	PUTBACK;
325	}	682	}
326		683
327	return !!SvTRUE (ERRSV);	684	return !!SvTRUE (ERRSV);
328	}	685	}
329		686
		687	static void
330	static void req_destroy (aio_req req)	688	req_destroy (aio_req req)
331	{	689	{
332	if (req->self)	690	if (req->self)
333	{	691	{
334	sv_unmagic (req->self, PERL_MAGIC_ext);	692	sv_unmagic (req->self, PERL_MAGIC_ext);
335	SvREFCNT_dec (req->self);	693	SvREFCNT_dec (req->self);
336	}	694	}
337		695
338	SvREFCNT_dec (req->sv1);	696	SvREFCNT_dec (req->sv1);
339	SvREFCNT_dec (req->sv2);	697	SvREFCNT_dec (req->sv2);
		698	SvREFCNT_dec (req->sv3);
		699	SvREFCNT_dec (req->sv4);
340	SvREFCNT_dec (req->callback);	700	SvREFCNT_dec (req->callback);
341		701
342	Safefree (req);	702	free (req);
343	}	703	}
344		704
		705	static void
345	static void req_cancel_subs (aio_req grp)	706	req_cancel_subs (aio_req grp)
346	{	707	{
347	aio_req sub;
348
349	if (grp->type != EIO_GROUP)	708	if (grp->type != EIO_GROUP)
350	return;	709	return;
351		710
352	SvREFCNT_dec (grp->sv2);	711	SvREFCNT_dec (grp->sv2);
353	grp->sv2 = 0;	712	grp->sv2 = 0;
354		713
355	eio_grp_cancel (grp);	714	eio_grp_cancel (grp);
356	}	715	}
357		716
358	#ifdef USE_SOCKETS_AS_HANDLES	717	static void ecb_cold
359	# define TO_SOCKET(x) (win32_get_osfhandle (x))	718	create_respipe (void)
360	#else	719	{
361	# define TO_SOCKET(x) (x)	720	if (s_epipe_renew (&respipe))
362	#endif	721	croak ("IO::AIO: unable to initialize result pipe");
		722	}
363		723
364	static void	724	static void
365	create_respipe (void)	725	poll_wait (void)
366	{	726	{
367	int old_readfd = respipe [0];
368
369	if (respipe [1] >= 0)
370	respipe_close (TO_SOCKET (respipe [1]));
371
372	#ifdef _WIN32
373	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
374	#else
375	if (pipe (respipe))
376	#endif
377	croak ("unable to initialize result pipe");
378
379	if (old_readfd >= 0)
380	{
381	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
382	croak ("unable to initialize result pipe(2)");
383
384	respipe_close (respipe [0]);
385	respipe [0] = old_readfd;
386	}
387
388	#ifdef _WIN32
389	int arg = 1;
390	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
391	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
392	#else
393	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
394	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
395	#endif
396	croak ("unable to initialize result pipe(3)");
397
398	respipe_osf [0] = TO_SOCKET (respipe [0]);
399	respipe_osf [1] = TO_SOCKET (respipe [1]);
400	}
401
402	static void poll_wait (void)
403	{
404	fd_set rfd;
405
406	while (eio_nreqs ())	727	while (eio_nreqs ())
407	{	728	{
408	int size;	729	int size;
409		730
410	X_LOCK (reslock);	731	X_LOCK (reslock);
…		…
414	if (size)	735	if (size)
415	return;	736	return;
416		737
417	etp_maybe_start_thread ();	738	etp_maybe_start_thread ();
418		739
419	FD_ZERO (&rfd);	740	s_epipe_wait (&respipe);
420	FD_SET (respipe [0], &rfd);
421
422	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423	}	741	}
424	}	742	}
425		743
426	static int poll_cb (void)	744	static int
		745	poll_cb (void)
427	{	746	{
428	int res;	747	for (;;)
429
430	do
431	{	748	{
432	res = eio_poll ();	749	int res = eio_poll ();
433		750
434	if (res > 0)	751	if (res > 0)
435	croak (0);	752	croak (0);
		753
		754	if (!max_outstanding || max_outstanding > eio_nreqs ())
		755	return res;
		756
		757	poll_wait ();
436	}	758	}
437	while (max_outstanding && max_outstanding <= eio_nreqs ());
438
439	return res;
440	}	759	}
441		760
442	static void atfork_child (void)	761	static void ecb_cold
		762	reinit (void)
443	{	763	{
444	create_respipe ();	764	create_respipe ();
		765
		766	if (eio_init (want_poll, done_poll) < 0)
		767	croak ("IO::AIO: unable to initialise eio library");
		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	/*****************************************************************************/
		814
		815	static SV *
		816	get_cb (SV *cb_sv)
		817	{
		818	SvGETMAGIC (cb_sv);
		819	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		820	}
		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;
445	}	840	}
446		841
447	#define dREQ \	842	#define dREQ \
448	aio_req req; \	843	aio_req req = dreq (callback); \
449	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \
451	\
452	if (SvOK (callback) && !SvROK (callback)) \
453	croak ("callback must be undef or of reference type"); \
454	\
455	Newz (0, req, 1, eio_req); \
456	if (!req) \
457	croak ("out of memory during eio_req allocation"); \
458	\
459	req->callback = newSVsv (callback); \
460	req->pri = req_pri
461		844
462	#define REQ_SEND \	845	#define REQ_SEND \
		846	PUTBACK; \
463	req_submit (req); \	847	req_submit (req); \
		848	SPAGAIN; \
464	\	849	\
465	if (GIMME_V != G_VOID) \	850	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	851	XPUSHs (req_sv (req, aio_req_stash));
467		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
468	MODULE = IO::AIO PACKAGE = IO::AIO	919	MODULE = IO::AIO PACKAGE = IO::AIO
469		920
470	PROTOTYPES: ENABLE	921	PROTOTYPES: ENABLE
471		922
472	BOOT:	923	BOOT:
473	{	924	{
		925	static const struct {
		926	const char *name;
		927	IV iv;
		928	} *civ, const_iv[] = {
		929	# define const_niv(name, value) { # name, (IV) value },
		930	# define const_iv(name) { # name, (IV) name },
		931	# define const_eio(name) { # name, (IV) EIO_ ## name },
		932	const_iv (EXDEV)
		933	const_iv (ENOSYS)
		934	const_iv (O_RDONLY)
		935	const_iv (O_WRONLY)
		936	const_iv (O_RDWR)
		937	const_iv (O_CREAT)
		938	const_iv (O_TRUNC)
		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
		958	const_iv (S_IFIFO)
		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
		968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		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)
		1017
		1018	const_eio (MS_ASYNC)
		1019	const_eio (MS_INVALIDATE)
		1020	const_eio (MS_SYNC)
		1021
		1022	const_eio (MT_MODIFY)
		1023
		1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1025	const_eio (SYNC_FILE_RANGE_WRITE)
		1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1027
		1028	const_eio (FALLOC_FL_KEEP_SIZE)
		1029
		1030	const_eio (READDIR_DENTS)
		1031	const_eio (READDIR_DIRS_FIRST)
		1032	const_eio (READDIR_STAT_ORDER)
		1033	const_eio (READDIR_FOUND_UNKNOWN)
		1034
		1035	const_eio (DT_UNKNOWN)
		1036	const_eio (DT_FIFO)
		1037	const_eio (DT_CHR)
		1038	const_eio (DT_DIR)
		1039	const_eio (DT_BLK)
		1040	const_eio (DT_REG)
		1041	const_eio (DT_LNK)
		1042	const_eio (DT_SOCK)
		1043	const_eio (DT_WHT)
		1044	};
		1045
474	stash = gv_stashpv ("IO::AIO", 1);	1046	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1047	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1048	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1049	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
475		1050
476	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1051	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
477	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1052	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
478	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
479	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
480	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
481	#ifndef _WIN32
482	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
483	#endif
484		1053
485	create_respipe ();	1054	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
486		1055
487	if (eio_init (want_poll, done_poll) < 0)	1056	reinit ();
488	croak ("IO::AIO: unable to initialise eio library");
489
490	/* atfork child called in fifo order, so before eio's handler */
491	X_THREAD_ATFORK (0, 0, atfork_child);
492	}	1057	}
493		1058
494	void	1059	void
		1060	reinit ()
		1061	PROTOTYPE:
		1062
		1063	void
495	max_poll_reqs (int nreqs)	1064	max_poll_reqs (unsigned int nreqs)
496	PROTOTYPE: $	1065	PROTOTYPE: $
497	CODE:	1066	CODE:
498	eio_set_max_poll_reqs (nreqs);	1067	eio_set_max_poll_reqs (nreqs);
499		1068
500	void	1069	void
…		…
502	PROTOTYPE: $	1071	PROTOTYPE: $
503	CODE:	1072	CODE:
504	eio_set_max_poll_time (nseconds);	1073	eio_set_max_poll_time (nseconds);
505		1074
506	void	1075	void
507	min_parallel (int nthreads)	1076	min_parallel (unsigned int nthreads)
508	PROTOTYPE: $	1077	PROTOTYPE: $
509	CODE:	1078	CODE:
510	eio_set_min_parallel (nthreads);	1079	eio_set_min_parallel (nthreads);
511		1080
512	void	1081	void
513	max_parallel (int nthreads)	1082	max_parallel (unsigned int nthreads)
514	PROTOTYPE: $	1083	PROTOTYPE: $
515	CODE:	1084	CODE:
516	eio_set_max_parallel (nthreads);	1085	eio_set_max_parallel (nthreads);
517		1086
518	void	1087	void
519	max_idle (int nthreads)	1088	max_idle (unsigned int nthreads)
520	PROTOTYPE: $	1089	PROTOTYPE: $
521	CODE:	1090	CODE:
522	eio_set_max_idle (nthreads);	1091	eio_set_max_idle (nthreads);
523		1092
524	void	1093	void
		1094	idle_timeout (unsigned int seconds)
		1095	PROTOTYPE: $
		1096	CODE:
		1097	eio_set_idle_timeout (seconds);
		1098
		1099	void
525	max_outstanding (int maxreqs)	1100	max_outstanding (unsigned int maxreqs)
526	PROTOTYPE: $	1101	PROTOTYPE: $
527	CODE:	1102	CODE:
528	max_outstanding = maxreqs;	1103	max_outstanding = maxreqs;
529		1104
530	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
531	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)
532	PROTOTYPE: $$$;$
533	PPCODE:	1119	PPCODE:
534	{	1120	{
535	dREQ;	1121	dREQ;
536		1122
537	req->type = EIO_OPEN;	1123	req->type = EIO_OPEN;
538	req->sv1 = newSVsv (pathname);	1124	req_set_path1 (req, pathname);
539	req->ptr1 = SvPVbyte_nolen (req->sv1);
540	req->int1 = flags;	1125	req->int1 = flags;
541	req->int2 = mode;	1126	req->int2 = mode;
542		1127
543	REQ_SEND;	1128	REQ_SEND;
544	}	1129	}
545		1130
546	void	1131	void
547	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548	PROTOTYPE: $;$
549	ALIAS:	1133	ALIAS:
550	aio_fsync = EIO_FSYNC	1134	aio_fsync = EIO_FSYNC
551	aio_fdatasync = EIO_FDATASYNC	1135	aio_fdatasync = EIO_FDATASYNC
		1136	aio_syncfs = EIO_SYNCFS
552	PPCODE:	1137	PPCODE:
553	{	1138	{
		1139	int fd = s_fileno_croak (fh, 0);
554	dREQ;	1140	dREQ;
555		1141
556	req->type = ix;	1142	req->type = ix;
557	req->sv1 = newSVsv (fh);	1143	req->sv1 = newSVsv (fh);
558	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1144	req->int1 = fd;
559		1145
560	REQ_SEND (req);	1146	REQ_SEND;
		1147	}
		1148
		1149	void
		1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1151	PPCODE:
		1152	{
		1153	int fd = s_fileno_croak (fh, 0);
		1154	dREQ;
		1155
		1156	req->type = EIO_SYNC_FILE_RANGE;
		1157	req->sv1 = newSVsv (fh);
		1158	req->int1 = fd;
		1159	req->offs = offset;
		1160	req->size = nbytes;
		1161	req->int2 = flags;
		1162
		1163	REQ_SEND;
		1164	}
		1165
		1166	void
		1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1168	PPCODE:
		1169	{
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		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;
561	}	1181	}
562		1182
563	void	1183	void
564	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)
565	PROTOTYPE: $;$
566	PPCODE:	1185	PPCODE:
567	{	1186	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1188	int fd = s_fileno_croak (fh, 0);
569	dREQ;	1189	dREQ;
570		1190
571	if (close_pipe < 0)	1191	if (expect_false (close_fd < 0))
572	{	1192	{
573	int pipefd [2];	1193	int pipefd [2];
574		1194
		1195	if (
		1196	#ifdef _WIN32
		1197	_pipe (pipefd, 1, _O_BINARY) < 0
		1198	#else
575	if (pipe (pipefd) < 0	1199	pipe (pipefd) < 0
576	|| close (pipefd [1]) < 0
577	|| 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	)
578	abort (); /*D*/	1204	abort (); /*D*/
579		1205
580	close_pipe = pipefd [0];	1206	close_fd = pipefd [0];
581	}	1207	}
582		1208
583	req->type = EIO_DUP2;	1209	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	1210	req->int1 = close_fd;
585	req->sv2 = newSVsv (fh);	1211	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1212	req->int2 = fd;
587		1213
588	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;
589	}	1232	}
590		1233
591	void	1234	void
592	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)
593	ALIAS:	1236	ALIAS:
594	aio_read = EIO_READ	1237	aio_read = EIO_READ
595	aio_write = EIO_WRITE	1238	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$
597	PPCODE:	1239	PPCODE:
598	{	1240	{
599	STRLEN svlen;	1241	STRLEN svlen;
		1242	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	1243	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	1244	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		1245
606	if (dataoffset < 0)	1246	if (dataoffset < 0)
607	dataoffset += svlen;	1247	dataoffset += svlen;
608		1248
609	if (dataoffset < 0 || dataoffset > svlen)	1249	if (dataoffset < 0 || dataoffset > svlen)
…		…
615	if (!SvOK (length) || len + dataoffset > svlen)	1255	if (!SvOK (length) || len + dataoffset > svlen)
616	len = svlen - dataoffset;	1256	len = svlen - dataoffset;
617	}	1257	}
618	else	1258	else
619	{	1259	{
620	/* read: grow scalar as necessary */	1260	/* read: check type and grow scalar as necessary */
		1261	SvUPGRADE (data, SVt_PV);
621	svptr = SvGROW (data, len + dataoffset + 1);	1262	svptr = SvGROW (data, len + dataoffset + 1);
622	}	1263	}
623		1264
624	if (len < 0)
625	croak ("length must not be negative");
626
627	{	1265	{
628	dREQ;	1266	dREQ;
629		1267
630	req->type = ix;	1268	req->type = ix;
631	req->sv1 = newSVsv (fh);	1269	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1270	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1271	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	1272	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	1273	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	1274	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	1275	req->stroffset = dataoffset;
…		…
646	REQ_SEND;	1283	REQ_SEND;
647	}	1284	}
648	}	1285	}
649		1286
650	void	1287	void
651	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
652	PROTOTYPE: $$;$	1289	ALIAS:
		1290	aio_readlink = EIO_READLINK
		1291	aio_realpath = EIO_REALPATH
653	PPCODE:	1292	PPCODE:
654	{	1293	{
655	SV *data;
656	dREQ;	1294	dREQ;
657		1295
658	req->type = EIO_READLINK;	1296	req->type = ix;
659	req->sv1 = newSVsv (path);	1297	req_set_path1 (req, pathname);
660	req->ptr1 = SvPVbyte_nolen (req->sv1);
661		1298
662	REQ_SEND;	1299	REQ_SEND;
663	}	1300	}
664		1301
665	void	1302	void
666	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV 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)
667	PROTOTYPE: $$$$;$
668	PPCODE:	1304	PPCODE:
669	{	1305	{
		1306	int ifd = s_fileno_croak (in_fh , 0);
		1307	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1308	dREQ;
671		1309
672	req->type = EIO_SENDFILE;	1310	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1311	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1312	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1313	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1314	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1315	req->offs = in_offset;
678	req->size = length;	1316	req->size = length;
679		1317
680	REQ_SEND;	1318	REQ_SEND;
681	}	1319	}
682		1320
683	void	1321	void
684	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1323	PPCODE:
687	{	1324	{
		1325	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1326	dREQ;
689		1327
690	req->type = EIO_READAHEAD;	1328	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1329	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1330	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1331	req->offs = offset;
694	req->size = length;	1332	req->size = length;
695		1333
696	REQ_SEND;	1334	REQ_SEND;
697	}	1335	}
698		1336
699	void	1337	void
700	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1338	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701	ALIAS:	1339	ALIAS:
702	aio_stat = EIO_STAT	1340	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1341	aio_lstat = EIO_LSTAT
		1342	aio_statvfs = EIO_STATVFS
704	PPCODE:	1343	PPCODE:
705	{	1344	{
706	dREQ;	1345	dREQ;
707		1346
708	req->sv1 = newSVsv (fh_or_path);	1347	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
709
710	if (SvPOK (req->sv1))
711	{
712	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}
715	else
716	{
717	req->type = EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}
720		1348
721	REQ_SEND;	1349	REQ_SEND;
722	}	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
723		1367
724	void	1368	void
725	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)
726	PPCODE:	1370	PPCODE:
727	{	1371	{
728	dREQ;	1372	dREQ;
729		1373
730	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
731	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1375	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
732	req->sv1 = newSVsv (fh_or_path);	1376	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
733
734	if (SvPOK (req->sv1))
735	{
736	req->type = EIO_UTIME;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}
739	else
740	{
741	req->type = EIO_FUTIME;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}
744		1377
745	REQ_SEND;	1378	REQ_SEND;
746	}	1379	}
747		1380
748	void	1381	void
749	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)
750	PPCODE:	1383	PPCODE:
751	{	1384	{
752	dREQ;	1385	dREQ;
753		1386
754	req->sv1 = newSVsv (fh_or_path);
755	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
756		1388	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
757	if (SvPOK (req->sv1))
758	{
759	req->type = EIO_TRUNCATE;
760	req->ptr1 = SvPVbyte_nolen (req->sv1);
761	}
762	else
763	{
764	req->type = EIO_FTRUNCATE;
765	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
766	}
767		1389
768	REQ_SEND;	1390	REQ_SEND;
769	}	1391	}
770		1392
771	void	1393	void
772	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)
773	ALIAS:
774	aio_chmod = EIO_CHMOD
775	aio_mkdir = EIO_MKDIR
776	PPCODE:	1395	PPCODE:
777	{	1396	{
778	dREQ;	1397	dREQ;
779		1398
780	req->int2 = mode;	1399	req->int2 = mode;
781	req->sv1 = newSVsv (fh_or_path);	1400	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
782
783	if (SvPOK (req->sv1))
784	{
785	req->type = ix;
786	req->ptr1 = SvPVbyte_nolen (req->sv1);
787	}
788	else
789	{
790	req->type = EIO_FCHMOD;
791	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
792	}
793		1401
794	REQ_SEND;	1402	REQ_SEND;
795	}	1403	}
796		1404
797	void	1405	void
…		…
800	{	1408	{
801	dREQ;	1409	dREQ;
802		1410
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1412	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1413	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1414
807	if (SvPOK (req->sv1))	1415	REQ_SEND;
808	{	1416	}
		1417
		1418	void
		1419	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1420	PPCODE:
		1421	{
		1422	dREQ;
		1423
		1424	req->type = EIO_READDIR;
		1425	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1426
		1427	if (flags & EIO_READDIR_DENTS)
		1428	req->int1 |= EIO_READDIR_CUSTOM2;
		1429
		1430	req_set_path1 (req, pathname);
		1431
		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
809	req->type = EIO_CHOWN;	1441	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req->int2 = mode;
811	}	1443	req_set_path1 (req, pathname);
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1444
818	REQ_SEND;	1445	REQ_SEND;
819	}	1446	}
820		1447
821	void	1448	void
…		…
827	PPCODE:	1454	PPCODE:
828	{	1455	{
829	dREQ;	1456	dREQ;
830		1457
831	req->type = ix;	1458	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1459	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1460
835	REQ_SEND;	1461	REQ_SEND;
836	}	1462	}
837		1463
838	void	1464	void
…		…
841	aio_link = EIO_LINK	1467	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1468	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1469	aio_rename = EIO_RENAME
844	PPCODE:	1470	PPCODE:
845	{	1471	{
		1472	eio_wd wd2 = 0;
846	dREQ;	1473	dREQ;
847		1474
848	req->type = ix;	1475	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1476	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1477	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1478	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1479
854	REQ_SEND;	1480	REQ_SEND;
855	}	1481	}
856		1482
857	void	1483	void
…		…
859	PPCODE:	1485	PPCODE:
860	{	1486	{
861	dREQ;	1487	dREQ;
862		1488
863	req->type = EIO_MKNOD;	1489	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1490	req->int2 = (mode_t)mode;
867	req->offs = dev;	1491	req->offs = dev;
		1492	req_set_path1 (req, pathname);
868		1493
869	REQ_SEND;	1494	REQ_SEND;
870	}	1495	}
871		1496
872	void	1497	void
		1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1499	ALIAS:
		1500	aio_mtouch = EIO_MTOUCH
		1501	aio_msync = EIO_MSYNC
		1502	PPCODE:
		1503	{
		1504	STRLEN svlen;
		1505	char *svptr = SvPVbyte (data, svlen);
		1506	UV len = SvUV (length);
		1507
		1508	if (offset < 0)
		1509	offset += svlen;
		1510
		1511	if (offset < 0 || offset > svlen)
		1512	croak ("offset outside of scalar");
		1513
		1514	if (!SvOK (length) || len + offset > svlen)
		1515	len = svlen - offset;
		1516
		1517	{
		1518	dREQ;
		1519
		1520	req->type = ix;
		1521	req->sv2 = SvREFCNT_inc (data);
		1522	req->ptr2 = (char *)svptr + offset;
		1523	req->size = len;
		1524	req->int1 = flags;
		1525
		1526	REQ_SEND;
		1527	}
		1528	}
		1529
		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
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1572	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1573	PPCODE:
875	{	1574	{
876	dREQ;	1575	dREQ;
877		1576
…		…
881	REQ_SEND;	1580	REQ_SEND;
882	}	1581	}
883		1582
884	void	1583	void
885	aio_group (SV *callback=&PL_sv_undef)	1584	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1585	PPCODE:
888	{	1586	{
889	dREQ;	1587	dREQ;
890		1588
891	req->type = EIO_GROUP;	1589	req->type = EIO_GROUP;
892		1590
893	eio_submit (req);	1591	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1592	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1593	}
896		1594
897	void	1595	void
898	aio_nop (SV *callback=&PL_sv_undef)	1596	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1597	ALIAS:
…		…
908	REQ_SEND;	1606	REQ_SEND;
909	}	1607	}
910		1608
911	int	1609	int
912	aioreq_pri (int pri = 0)	1610	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1611	CODE:
915	RETVAL = next_pri;	1612	RETVAL = next_pri;
916	if (items > 0)	1613	if (items > 0)
917	{	1614	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1627	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice;	1628	next_pri = nice;
932		1629
933	void	1630	void
934	flush ()	1631	flush ()
935	PROTOTYPE:
936	CODE:	1632	CODE:
937	while (eio_nreqs ())	1633	while (eio_nreqs ())
938	{	1634	{
939	poll_wait ();	1635	poll_wait ();
940	poll_cb ();	1636	poll_cb ();
941	}	1637	}
942		1638
943	int	1639	int
944	poll()	1640	poll ()
945	PROTOTYPE:
946	CODE:	1641	CODE:
947	poll_wait ();	1642	poll_wait ();
948	RETVAL = poll_cb ();	1643	RETVAL = poll_cb ();
949	OUTPUT:	1644	OUTPUT:
950	RETVAL	1645	RETVAL
951		1646
952	int	1647	int
953	poll_fileno()	1648	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1649	CODE:
956	RETVAL = respipe [0];	1650	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1651	OUTPUT:
958	RETVAL	1652	RETVAL
959		1653
960	int	1654	int
961	poll_cb(...)	1655	poll_cb (...)
962	PROTOTYPE:	1656	PROTOTYPE:
963	CODE:	1657	CODE:
964	RETVAL = poll_cb ();	1658	RETVAL = poll_cb ();
965	OUTPUT:	1659	OUTPUT:
966	RETVAL	1660	RETVAL
967		1661
968	void	1662	void
969	poll_wait()	1663	poll_wait ()
970	PROTOTYPE:
971	CODE:	1664	CODE:
972	poll_wait ();	1665	poll_wait ();
973		1666
974	int	1667	int
975	nreqs()	1668	nreqs ()
976	PROTOTYPE:
977	CODE:	1669	CODE:
978	RETVAL = eio_nreqs ();	1670	RETVAL = eio_nreqs ();
979	OUTPUT:	1671	OUTPUT:
980	RETVAL	1672	RETVAL
981		1673
982	int	1674	int
983	nready()	1675	nready ()
984	PROTOTYPE:
985	CODE:	1676	CODE:
986	RETVAL = eio_nready ();	1677	RETVAL = eio_nready ();
987	OUTPUT:	1678	OUTPUT:
988	RETVAL	1679	RETVAL
989		1680
990	int	1681	int
991	npending()	1682	npending ()
992	PROTOTYPE:
993	CODE:	1683	CODE:
994	RETVAL = eio_npending ();	1684	RETVAL = eio_npending ();
995	OUTPUT:	1685	OUTPUT:
996	RETVAL	1686	RETVAL
997		1687
998	int	1688	int
999	nthreads()	1689	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1690	CODE:
1002	RETVAL = eio_nthreads ();	1691	RETVAL = eio_nthreads ();
1003	OUTPUT:	1692	OUTPUT:
1004	RETVAL	1693	RETVAL
1005		1694
		1695	int
		1696	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1697	CODE:
		1698	RETVAL = posix_fadvise (fh, offset, length, advice);
		1699	OUTPUT:
		1700	RETVAL
		1701
		1702	IV
		1703	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1704	CODE:
		1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1706	OUTPUT:
		1707	RETVAL
		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
1006	void _on_next_submit (SV *cb)	1817	void _on_next_submit (SV *cb)
1007	CODE:	1818	CODE:
1008	SvREFCNT_dec (on_next_submit);	1819	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1821
1011	PROTOTYPES: DISABLE	1822	PROTOTYPES: DISABLE
1012		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
1013	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1852	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1014		1853
1015	void	1854	void
1016	cancel (aio_req_ornot req)	1855	cancel (aio_req_ornot req)
1017	CODE:	1856	CODE:
1018	eio_cancel (req);	1857	eio_cancel (req);
1019		1858
1020	void	1859	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1860	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022	CODE:	1861	PPCODE:
		1862	{
		1863	if (GIMME_V != G_VOID)
		1864	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1865
		1866	if (items > 1)
		1867	{
		1868	SV *cb_cv =get_cb (callback);
		1869
1023	SvREFCNT_dec (req->callback);	1870	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1871	req->callback = SvREFCNT_inc (cb_cv);
		1872	}
		1873	}
1025		1874
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1875	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1876
1028	void	1877	void
1029	add (aio_req grp, ...)	1878	add (aio_req grp, ...)
…		…
1061	AV *av;	1910	AV *av;
1062		1911
1063	grp->errorno = errno;	1912	grp->errorno = errno;
1064		1913
1065	av = newAV ();	1914	av = newAV ();
		1915	av_extend (av, items - 1);
1066		1916
1067	for (i = 1; i < items; ++i )	1917	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	1918	av_push (av, newSVsv (ST (i)));
1069		1919
1070	SvREFCNT_dec (grp->sv1);	1920	SvREFCNT_dec (grp->sv1);
…		…
1084	void	1934	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	1935	feed (aio_req grp, SV *callback=&PL_sv_undef)
1086	CODE:	1936	CODE:
1087	{	1937	{
1088	SvREFCNT_dec (grp->sv2);	1938	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	1939	grp->sv2 = newSVsv (callback);
		1940	grp->feed = aio_grp_feed;
1090		1941
1091	if (grp->int2 <= 0)	1942	if (grp->int2 <= 0)
1092	grp->int2 = 2;	1943	grp->int2 = 2;
1093		1944
1094	eio_grp_limit (grp, grp->int2);	1945	eio_grp_limit (grp, grp->int2);

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