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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.118 by root, Sun May 11 00:01:03 2008 UTC vs.
Revision 1.186 by root, Thu Jul 14 22:36:17 2011 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
17		23
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
20		26
21	#ifdef _WIN32	27	#ifdef _WIN32
…		…
40	# undef unlink	46	# undef unlink
41	# undef rmdir	47	# undef rmdir
42	# undef rename	48	# undef rename
43	# undef lseek	49	# undef lseek
44		50
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)	51	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)	52	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)	53	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58		54
59	#else	55	#else
60		56
61	# include <sys/time.h>	57	# include <sys/time.h>
62	# include <sys/select.h>	58	# include <sys/select.h>
…		…
65	# include <signal.h>	61	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent	62	# define EIO_STRUCT_DIRENT struct dirent
67		63
68	#endif	64	#endif
69		65
		66	/* perl stupidly overrides readdir and maybe others */
		67	/* with thread-unsafe versions, imagine that :( */
		68	#undef readdir
		69	#undef opendir
		70	#undef closedir
		71
70	#define EIO_STRUCT_STAT Stat_t	72	#define EIO_STRUCT_STAT Stat_t
71		73
72	/* use NV for 32 bit perls as it allows larger offsets */	74	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	75	#if IVSIZE >= 8
		76	# define VAL64 IV
74	# define SvVAL64 SvIV	77	# define SvVAL64 SvIV
		78	# define newSVval64 newSViv
75	#else	79	#else
		80	# define VAL64 NV
76	# define SvVAL64 SvNV	81	# define SvVAL64 SvNV
		82	# define newSVval64 newSVnv
77	#endif	83	#endif
78		84
79	static HV *stash;	85	/*****************************************************************************/
		86
		87	#if __GNUC__ >= 3
		88	# define expect(expr,value) __builtin_expect ((expr),(value))
		89	#else
		90	# define expect(expr,value) (expr)
		91	#endif
		92
		93	#define expect_false(expr) expect ((expr) != 0, 0)
		94	#define expect_true(expr) expect ((expr) != 0, 1)
		95
		96	/*****************************************************************************/
		97
80	typedef SV SV8; /* byte-sv, used for argument-checking */	98	typedef SV SV8; /* byte-sv, used for argument-checking */
		99	typedef int aio_rfd; /* read file desriptor */
		100	typedef int aio_wfd; /* write file descriptor */
81		101
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	102	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		103
85	#define EIO_COMMON \	104	#define EIO_REQ_MEMBERS \
86	SV *callback; \	105	SV *callback; \
87	SV *sv1, *sv2; \	106	SV *sv1, *sv2; \
88	STRLEN stroffset; \	107	STRLEN stroffset; \
89	SV *self	108	SV *self;
90		109
		110	#define EIO_NO_WRAPPERS 1
		111
		112	#include "libeio/config.h"
91	#include "libeio/eio.h"	113	#include "libeio/eio.h"
		114
		115	/* Linux/others */
		116	#ifndef O_ASYNC
		117	# define O_ASYNC 0
		118	#endif
		119	#ifndef O_DIRECT
		120	# define O_DIRECT 0
		121	#endif
		122	#ifndef O_NOATIME
		123	# define O_NOATIME 0
		124	#endif
		125
		126	/* POSIX */
		127	#ifndef O_CLOEXEC
		128	# define O_CLOEXEC 0
		129	#endif
		130	#ifndef O_NOFOLLOW
		131	# define O_NOFOLLOW 0
		132	#endif
		133	#ifndef O_NOCTTY
		134	# define O_NOCTTY 0
		135	#endif
		136	#ifndef O_NONBLOCK
		137	# define O_NONBLOCK 0
		138	#endif
		139	#ifndef O_EXEC
		140	# define O_EXEC 0
		141	#endif
		142	#ifndef O_SEARCH
		143	# define O_SEARCH 0
		144	#endif
		145	#ifndef O_DIRECTORY
		146	# define O_DIRECTORY 0
		147	#endif
		148	#ifndef O_DSYNC
		149	# define O_DSYNC 0
		150	#endif
		151	#ifndef O_RSYNC
		152	# define O_RSYNC 0
		153	#endif
		154	#ifndef O_SYNC
		155	# define O_SYNC 0
		156	#endif
		157	#ifndef O_TTY_INIT
		158	# define O_TTY_INIT 0
		159	#endif
		160
		161	#ifndef POSIX_FADV_NORMAL
		162	# define POSIX_FADV_NORMAL 0
		163	#endif
		164	#ifndef POSIX_FADV_SEQUENTIAL
		165	# define POSIX_FADV_SEQUENTIAL 0
		166	#endif
		167	#ifndef POSIX_FADV_RANDOM
		168	# define POSIX_FADV_RANDOM 0
		169	#endif
		170	#ifndef POSIX_FADV_NOREUSE
		171	# define POSIX_FADV_NOREUSE 0
		172	#endif
		173	#ifndef POSIX_FADV_WILLNEED
		174	# define POSIX_FADV_WILLNEED 0
		175	#endif
		176	#ifndef POSIX_FADV_DONTNEED
		177	# define POSIX_FADV_DONTNEED 0
		178	#endif
		179
		180	#if !HAVE_POSIX_FADVISE
		181	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		182	#endif
		183
		184	#ifndef POSIX_MADV_NORMAL
		185	# define POSIX_MADV_NORMAL 0
		186	#endif
		187	#ifndef POSIX_MADV_SEQUENTIAL
		188	# define POSIX_MADV_SEQUENTIAL 0
		189	#endif
		190	#ifndef POSIX_MADV_RANDOM
		191	# define POSIX_MADV_RANDOM 0
		192	#endif
		193	#ifndef POSIX_MADV_WILLNEED
		194	# define POSIX_MADV_WILLNEED 0
		195	#endif
		196	#ifndef POSIX_MADV_DONTNEED
		197	# define POSIX_MADV_DONTNEED 0
		198	#endif
		199
		200	#if !HAVE_POSIX_MADVISE
		201	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		202	#endif
		203
		204	#ifndef PROT_NONE
		205	# define PROT_NONE 0
		206	#endif
		207	#ifndef PROT_READ
		208	# define PROT_READ 0
		209	#endif
		210	#ifndef PROT_WRITE
		211	# define PROT_READ 0
		212	#endif
		213	#ifndef PROT_EXEC
		214	# define PROT_EXEC 0
		215	#endif
		216
		217	#ifndef ST_NODEV
		218	# define ST_NODEV 0
		219	#endif
		220	#ifndef ST_NOEXEC
		221	# define ST_NOEXEC 0
		222	#endif
		223	#ifndef ST_SYNCHRONOUS
		224	# define ST_SYNCHRONOUS 0
		225	#endif
		226	#ifndef ST_MANDLOCK
		227	# define ST_MANDLOCK 0
		228	#endif
		229	#ifndef ST_WRITE
		230	# define ST_WRITE 0
		231	#endif
		232	#ifndef ST_APPEND
		233	# define ST_APPEND 0
		234	#endif
		235	#ifndef ST_IMMUTABLE
		236	# define ST_IMMUTABLE 0
		237	#endif
		238	#ifndef ST_NOATIME
		239	# define ST_NOATIME 0
		240	#endif
		241	#ifndef ST_NODIRATIME
		242	# define ST_NODIRATIME 0
		243	#endif
		244	#ifndef ST_RELATIME
		245	# define ST_RELATIME 0
		246	#endif
		247
		248	#ifndef S_IFIFO
		249	# define S_IFIFO 0
		250	#endif
		251	#ifndef S_IFCHR
		252	# define S_IFCHR 0
		253	#endif
		254	#ifndef S_IFBLK
		255	# define S_IFBLK 0
		256	#endif
		257	#ifndef S_IFLNK
		258	# define S_IFLNK 0
		259	#endif
		260	#ifndef S_IFREG
		261	# define S_IFREG 0
		262	#endif
		263	#ifndef S_IFDIR
		264	# define S_IFDIR 0
		265	#endif
		266	#ifndef S_IFWHT
		267	# define S_IFWHT 0
		268	#endif
		269	#ifndef S_IFSOCK
		270	# define S_IFSOCK 0
		271	#endif
		272
		273	#ifndef MAP_ANONYMOUS
		274	# ifdef MAP_ANON
		275	# define MAP_ANONYMOUS MAP_ANON
		276	# else
		277	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		278	# endif
		279	#endif
		280	#ifndef MAP_HUGETLB
		281	# define MAP_HUGETLB 0
		282	#endif
		283	#ifndef MAP_LOCKED
		284	# define MAP_LOCKED 0
		285	#endif
		286	#ifndef MAP_NORESERVE
		287	# define MAP_NORESERVE 0
		288	#endif
		289	#ifndef MAP_POPULATE
		290	# define MAP_POPULATE 0
		291	#endif
		292	#ifndef MAP_NONBLOCK
		293	# define MAP_NONBLOCK 0
		294	#endif
		295
		296	#ifndef makedev
		297	# define makedev(maj,min) (((maj) << 8) | (min))
		298	#endif
		299	#ifndef major
		300	# define major(dev) ((dev) >> 8)
		301	#endif
		302	#ifndef minor
		303	# define minor(dev) ((dev) & 0xff)
		304	#endif
		305
		306	#ifndef PAGESIZE
		307	# define PAGESIZE sysconf (_SC_PAGESIZE)
		308	#endif
92		309
93	static int req_invoke (eio_req *req);	310	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	311	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	312	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	313	#define EIO_DESTROY(req) req_destroy (req)
99		314
100	enum {	315	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	316	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		320
106	typedef eio_req *aio_req;	321	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	322	typedef eio_req *aio_req_ornot;
108		323
109	static SV *on_next_submit;	324	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	325	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	326	static int max_outstanding;
112		327
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	328	static s_epipe respipe;
114		329
115	static void req_destroy (aio_req req);	330	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	331	static void req_cancel (aio_req req);
117		332
118	static void want_poll (void)	333	static void want_poll (void)
119	{	334	{
120	/* write a dummy byte to the pipe so fh becomes ready */	335	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	336	s_epipe_signal (&respipe);
122	}	337	}
123		338
124	static void done_poll (void)	339	static void done_poll (void)
125	{	340	{
126	/* read any signals sent by the worker threads */	341	/* read any signals sent by the worker threads */
127	char buf [4];	342	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	343	}
131		344
132	/* must be called at most once */	345	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	346	static SV *req_sv (aio_req req, HV *stash)
134	{	347	{
135	if (!req->self)	348	if (!req->self)
136	{	349	{
137	req->self = (SV *)newHV ();	350	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	351	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	352	}
140		353
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	354	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	355	}
143		356
144	static aio_req SvAIO_REQ (SV *sv)	357	static aio_req SvAIO_REQ (SV *sv)
145	{	358	{
146	MAGIC *mg;	359	MAGIC *mg;
147		360
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	361	if (!SvROK (sv)
		362	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		363	&& SvSTASH (SvRV (sv)) != aio_req_stash
		364	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	365	croak ("object of class IO::AIO::REQ expected");
150		366
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	367	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		368
153	return mg ? (aio_req)mg->mg_ptr : 0;	369	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	370	}
…		…
160	dSP;	376	dSP;
161		377
162	ENTER;	378	ENTER;
163	SAVETMPS;	379	SAVETMPS;
164	PUSHMARK (SP);	380	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	381	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	382	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	383	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	384	SPAGAIN;
169	FREETMPS;	385	FREETMPS;
170	LEAVE;	386	LEAVE;
…		…
173		389
174	static void req_submit (eio_req *req)	390	static void req_submit (eio_req *req)
175	{	391	{
176	eio_submit (req);	392	eio_submit (req);
177		393
178	if (on_next_submit)	394	if (expect_false (on_next_submit))
179	{	395	{
180	dSP;	396	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	397	SV *cb = sv_2mortal (on_next_submit);
182		398
183	on_next_submit = 0;	399	on_next_submit = 0;
…		…
188	}	404	}
189	}	405	}
190		406
191	static int req_invoke (eio_req *req)	407	static int req_invoke (eio_req *req)
192	{	408	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	409	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	410	SvREADONLY_off (req->sv2);
197		411
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	412	if (!EIO_CANCELLED (req) && req->callback)
199	{	413	{
		414	dSP;
		415	static SV *sv_result_cache; /* caches the result integer SV */
		416	SV *sv_result;
		417
200	ENTER;	418	ENTER;
201	SAVETMPS;	419	SAVETMPS;
202	PUSHMARK (SP);	420	PUSHMARK (SP);
203	EXTEND (SP, 1);	421	EXTEND (SP, 1);
		422
		423	/* do not recreate the result IV from scratch each time */
		424	if (expect_true (sv_result_cache))
		425	{
		426	sv_result = sv_result_cache; sv_result_cache = 0;
		427	SvIV_set (sv_result, req->result);
		428	SvIOK_only (sv_result);
		429	}
		430	else
		431	{
		432	sv_result = newSViv (req->result);
		433	SvREADONLY_on (sv_result);
		434	}
204		435
205	switch (req->type)	436	switch (req->type)
206	{	437	{
207	case EIO_READDIR:	438	case EIO_READDIR:
208	{	439	{
209	SV *rv = &PL_sv_undef;	440	SV *rv = &PL_sv_undef;
210		441
211	if (req->result >= 0)	442	if (req->result >= 0)
212	{	443	{
213	int i;	444	int i;
214	char *buf = req->ptr2;	445	char *names = (char *)req->ptr2;
		446	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	447	AV *av = newAV ();
216		448
217	av_extend (av, req->result - 1);	449	av_extend (av, req->result - 1);
218		450
219	for (i = 0; i < req->result; ++i)	451	for (i = 0; i < req->result; ++i)
220	{	452	{
221	SV *sv = newSVpv (buf, 0);	453	if (req->int1 & EIO_READDIR_DENTS)
		454	{
		455	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		456
		457	if (req->int1 & EIO_READDIR_CUSTOM2)
		458	{
		459	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		460	AV *avent = newAV ();
		461
		462	av_extend (avent, 2);
		463
		464	if (!sv_type [ent->type])
		465	{
		466	sv_type [ent->type] = newSViv (ent->type);
		467	SvREADONLY_on (sv_type [ent->type]);
		468	}
		469
		470	av_store (avent, 0, namesv);
		471	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		472	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		473
		474	av_store (av, i, newRV_noinc ((SV *)avent));
		475	}
		476	else
223	av_store (av, i, sv);	477	av_store (av, i, namesv);
		478
		479	++ent;
		480	}
		481	else
		482	{
		483	SV *name = newSVpv (names, 0);
		484	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	485	names += SvCUR (name) + 1;
		486	}
225	}	487	}
226		488
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	489	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	490	}
229		491
230	PUSHs (rv);	492	PUSHs (rv);
		493
		494	if (req->int1 & EIO_READDIR_CUSTOM1)
		495	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
231	}	496	}
232	break;	497	break;
233		498
234	case EIO_OPEN:	499	case EIO_OPEN:
235	{	500	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	506	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	507	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	508	char sym [64];
244	int symlen;	509	int symlen;
245		510
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	511	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	512	gv_init (gv, aio_stash, sym, symlen, 0);
248		513
249	symlen = snprintf (	514	symlen = snprintf (
250	sym,	515	sym,
251	sizeof (sym),	516	sizeof (sym),
252	"%s&=%d",	517	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	518	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	519	(int)req->result
255	);	520	);
256		521
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	522	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	523	fh = (SV *)gv;
259	}	524	}
260		525
261	PUSHs (fh);	526	PUSHs (fh);
262	}	527	}
		528	break;
		529
		530	case EIO_STATVFS:
		531	case EIO_FSTATVFS:
		532	{
		533	SV *rv = &PL_sv_undef;
		534
		535	if (req->result >= 0)
		536	{
		537	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		538	HV *hv = newHV ();
		539
		540	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		541
		542	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		543	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		544	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		545	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		546	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		547	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		548	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		549	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		550	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		551	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		552	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		553	}
		554
		555	PUSHs (rv);
		556	}
		557
263	break;	558	break;
264		559
265	case EIO_GROUP:	560	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	561	req->int1 = 2; /* mark group as finished */
267		562
…		…
279	case EIO_NOP:	574	case EIO_NOP:
280	case EIO_BUSY:	575	case EIO_BUSY:
281	break;	576	break;
282		577
283	case EIO_READLINK:	578	case EIO_READLINK:
		579	case EIO_REALPATH:
284	if (req->result > 0)	580	if (req->result > 0)
285	{	581	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	SvCUR_set (req->sv2, req->result);
287	*SvEND (req->sv2) = 0;
288	PUSHs (req->sv2);
289	}
290	break;	582	break;
291		583
292	case EIO_STAT:	584	case EIO_STAT:
293	case EIO_LSTAT:	585	case EIO_LSTAT:
294	case EIO_FSTAT:	586	case EIO_FSTAT:
295	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	587	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
296	PL_laststatval = req->result;	588	PL_laststatval = req->result;
297	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	589	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
298	PUSHs (sv_2mortal (newSViv (req->result)));	590	PUSHs (sv_result);
299	break;	591	break;
300		592
301	case EIO_READ:	593	case EIO_READ:
		594	{
302	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	595	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
303	*SvEND (req->sv2) = 0;	596	*SvEND (req->sv2) = 0;
304	PUSHs (sv_2mortal (newSViv (req->result)));	597	SvPOK_only (req->sv2);
		598	SvSETMAGIC (req->sv2);
		599	PUSHs (sv_result);
		600	}
305	break;	601	break;
306		602
307	case EIO_DUP2:	603	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
308	if (req->result > 0)	604	if (req->result > 0)
309	req->result = 0;	605	SvIV_set (sv_result, 0);
310	/* FALLTHROUGH */	606	/* FALLTHROUGH */
311		607
312	default:	608	default:
313	PUSHs (sv_2mortal (newSViv (req->result)));	609	PUSHs (sv_result);
314	break;	610	break;
315	}	611	}
316		612
317	errno = req->errorno;	613	errno = req->errorno;
318		614
319	PUTBACK;	615	PUTBACK;
320	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	616	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
321	SPAGAIN;	617	SPAGAIN;
		618
		619	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		620	SvREFCNT_dec (sv_result);
		621	else
		622	sv_result_cache = sv_result;
322		623
323	FREETMPS;	624	FREETMPS;
324	LEAVE;	625	LEAVE;
325		626
326	PUTBACK;	627	PUTBACK;
…		…
355	grp->sv2 = 0;	656	grp->sv2 = 0;
356		657
357	eio_grp_cancel (grp);	658	eio_grp_cancel (grp);
358	}	659	}
359		660
360	#ifdef USE_SOCKETS_AS_HANDLES
361	# define TO_SOCKET(x) (win32_get_osfhandle (x))
362	#else
363	# define TO_SOCKET(x) (x)
364	#endif
365
366	static void
367	create_respipe (void)	661	static void create_respipe (void)
368	{	662	{
369	int old_readfd = respipe [0];
370
371	if (respipe [1] >= 0)
372	respipe_close (TO_SOCKET (respipe [1]));
373
374	#ifdef _WIN32
375	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
376	#else
377	if (pipe (respipe))	663	if (s_epipe_renew (&respipe))
378	#endif
379	croak ("unable to initialize result pipe");	664	croak ("IO::AIO: unable to initialize result pipe");
380
381	if (old_readfd >= 0)
382	{
383	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
384	croak ("unable to initialize result pipe(2)");
385
386	respipe_close (respipe [0]);
387	respipe [0] = old_readfd;
388	}
389
390	#ifdef _WIN32
391	int arg = 1;
392	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
393	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
394	#else
395	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
396	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
397	#endif
398	croak ("unable to initialize result pipe(3)");
399
400	respipe_osf [0] = TO_SOCKET (respipe [0]);
401	respipe_osf [1] = TO_SOCKET (respipe [1]);
402	}	665	}
403		666
404	static void poll_wait (void)	667	static void poll_wait (void)
405	{	668	{
406	fd_set rfd;
407
408	while (eio_nreqs ())	669	while (eio_nreqs ())
409	{	670	{
410	int size;	671	int size;
411		672
412	X_LOCK (reslock);	673	X_LOCK (reslock);
…		…
414	X_UNLOCK (reslock);	675	X_UNLOCK (reslock);
415		676
416	if (size)	677	if (size)
417	return;	678	return;
418		679
419	maybe_start_thread ();	680	etp_maybe_start_thread ();
420		681
421	FD_ZERO (&rfd);	682	s_epipe_wait (&respipe);
422	FD_SET (respipe [0], &rfd);
423
424	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
425	}	683	}
426	}	684	}
427		685
428	static int poll_cb (void)	686	static int poll_cb (void)
429	{	687	{
430	int res;	688	for (;;)
431
432	do
433	{	689	{
434	res = eio_poll ();	690	int res = eio_poll ();
435		691
436	if (res > 0)	692	if (res > 0)
437	croak (0);	693	croak (0);
		694
		695	if (!max_outstanding || max_outstanding > eio_nreqs ())
		696	return res;
		697
		698	poll_wait ();
438	}	699	}
439	while (max_outstanding && max_outstanding <= eio_nreqs ());
440
441	return res;
442	}	700	}
443		701
444	static void atfork_child (void)	702	static void atfork_child (void)
445	{	703	{
446	create_respipe ();	704	create_respipe ();
447	}	705	}
448		706
		707	/*****************************************************************************/
		708
		709	#if !_POSIX_MAPPED_FILES
		710	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		711	# define munmap(addr,length) (errno = ENOSYS, -1)
		712	#endif
		713
		714	#if !_POSIX_MEMORY_PROTECTION
		715	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		716	# define PROT_NONE 0
		717	# define PROT_WRITE 0
		718	# define MAP_PRIVATE 0
		719	# define MAP_SHARED 0
		720	# define MAP_FIXED 0
		721	#endif
		722
		723	#define MMAP_MAGIC PERL_MAGIC_ext
		724
		725	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		726	{
		727	int old_errno = errno;
		728	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		729	errno = old_errno;
		730
		731	mg->mg_obj = 0; /* just in case */
		732
		733	SvREADONLY_off (sv);
		734
		735	if (SvPVX (sv) != mg->mg_ptr)
		736	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		737
		738	SvCUR_set (sv, 0);
		739	SvPVX (sv) = 0;
		740	SvOK_off (sv);
		741
		742	return 0;
		743	}
		744
		745	static MGVTBL mmap_vtbl = {
		746	0, 0, 0, 0, mmap_free
		747	};
		748
		749	/*****************************************************************************/
		750
		751	static SV * get_cb (SV *cb_sv)
		752	{
		753	SvGETMAGIC (cb_sv);
		754	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		755	}
		756
449	#define dREQ \	757	#define dREQ \
		758	SV *cb_cv; \
450	aio_req req; \	759	aio_req req; \
451	int req_pri = next_pri; \	760	int req_pri = next_pri; \
452	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	761	next_pri = EIO_PRI_DEFAULT; \
453	\	762	\
454	if (SvOK (callback) && !SvROK (callback)) \	763	cb_cv = get_cb (callback); \
455	croak ("callback must be undef or of reference type"); \
456	\	764	\
457	Newz (0, req, 1, eio_req); \	765	Newz (0, req, 1, eio_req); \
458	if (!req) \	766	if (!req) \
459	croak ("out of memory during eio_req allocation"); \	767	croak ("out of memory during eio_req allocation"); \
460	\	768	\
461	req->callback = newSVsv (callback); \	769	req->callback = SvREFCNT_inc (cb_cv); \
462	req->pri = req_pri	770	req->pri = req_pri
463		771
464	#define REQ_SEND \	772	#define REQ_SEND \
		773	PUTBACK; \
465	req_submit (req); \	774	req_submit (req); \
		775	SPAGAIN; \
466	\	776	\
467	if (GIMME_V != G_VOID) \	777	if (GIMME_V != G_VOID) \
468	XPUSHs (req_sv (req, AIO_REQ_KLASS));	778	XPUSHs (req_sv (req, aio_req_stash));
469		779
470	MODULE = IO::AIO PACKAGE = IO::AIO	780	MODULE = IO::AIO PACKAGE = IO::AIO
471		781
472	PROTOTYPES: ENABLE	782	PROTOTYPES: ENABLE
473		783
474	BOOT:	784	BOOT:
475	{	785	{
		786	static const struct {
		787	const char *name;
		788	IV iv;
		789	} *civ, const_iv[] = {
		790	# define const_niv(name, value) { # name, (IV) value },
		791	# define const_iv(name) { # name, (IV) name },
		792	# define const_eio(name) { # name, (IV) EIO_ ## name },
		793	const_iv (EXDEV)
		794	const_iv (ENOSYS)
		795	const_iv (O_RDONLY)
		796	const_iv (O_WRONLY)
		797	const_iv (O_RDWR)
		798	const_iv (O_CREAT)
		799	const_iv (O_TRUNC)
		800	const_iv (O_EXCL)
		801	const_iv (O_APPEND)
		802
		803	const_iv (O_ASYNC)
		804	const_iv (O_DIRECT)
		805	const_iv (O_NOATIME)
		806
		807	const_iv (O_CLOEXEC)
		808	const_iv (O_NOCTTY)
		809	const_iv (O_NOFOLLOW)
		810	const_iv (O_NONBLOCK)
		811	const_iv (O_EXEC)
		812	const_iv (O_SEARCH)
		813	const_iv (O_DIRECTORY)
		814	const_iv (O_DSYNC)
		815	const_iv (O_RSYNC)
		816	const_iv (O_SYNC)
		817	const_iv (O_TTY_INIT)
		818
		819	const_iv (S_IFIFO)
		820	const_iv (S_IFCHR)
		821	const_iv (S_IFBLK)
		822	const_iv (S_IFLNK)
		823	const_iv (S_IFREG)
		824	const_iv (S_IFDIR)
		825	const_iv (S_IFWHT)
		826	const_iv (S_IFSOCK)
		827	const_iv (S_IFMT)
		828
		829	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		830	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		831	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		832	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		833	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		834	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		835
		836	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		837	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		838	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		839	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		840	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		841
		842	const_iv (ST_RDONLY)
		843	const_iv (ST_NOSUID)
		844	const_iv (ST_NODEV)
		845	const_iv (ST_NOEXEC)
		846	const_iv (ST_SYNCHRONOUS)
		847	const_iv (ST_MANDLOCK)
		848	const_iv (ST_WRITE)
		849	const_iv (ST_APPEND)
		850	const_iv (ST_IMMUTABLE)
		851	const_iv (ST_NOATIME)
		852	const_iv (ST_NODIRATIME)
		853	const_iv (ST_RELATIME)
		854
		855	const_iv (PROT_NONE)
		856	const_iv (PROT_EXEC)
		857	const_iv (PROT_READ)
		858	const_iv (PROT_WRITE)
		859
		860	/*const_iv (MAP_FIXED)*/
		861	const_iv (MAP_PRIVATE)
		862	const_iv (MAP_SHARED)
		863	const_iv (MAP_ANONYMOUS)
		864
		865	/* linuxish */
		866	const_iv (MAP_HUGETLB)
		867	const_iv (MAP_LOCKED)
		868	const_iv (MAP_NORESERVE)
		869	const_iv (MAP_POPULATE)
		870	const_iv (MAP_NONBLOCK)
		871
		872	const_eio (MCL_FUTURE)
		873	const_eio (MCL_CURRENT)
		874
		875	const_eio (MS_ASYNC)
		876	const_eio (MS_INVALIDATE)
		877	const_eio (MS_SYNC)
		878
		879	const_eio (MT_MODIFY)
		880
		881	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		882	const_eio (SYNC_FILE_RANGE_WRITE)
		883	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		884
		885	const_eio (FALLOC_FL_KEEP_SIZE)
		886
		887	const_eio (READDIR_DENTS)
		888	const_eio (READDIR_DIRS_FIRST)
		889	const_eio (READDIR_STAT_ORDER)
		890	const_eio (READDIR_FOUND_UNKNOWN)
		891
		892	const_eio (DT_UNKNOWN)
		893	const_eio (DT_FIFO)
		894	const_eio (DT_CHR)
		895	const_eio (DT_DIR)
		896	const_eio (DT_BLK)
		897	const_eio (DT_REG)
		898	const_eio (DT_LNK)
		899	const_eio (DT_SOCK)
		900	const_eio (DT_WHT)
		901	};
		902
476	stash = gv_stashpv ("IO::AIO", 1);	903	aio_stash = gv_stashpv ("IO::AIO" , 1);
		904	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		905	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
477		906
478	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	907	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
479	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	908	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
480	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
481	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
482	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
483	#ifdef _WIN32
484	X_MUTEX_CHECK (wrklock);
485	X_MUTEX_CHECK (reslock);
486	X_MUTEX_CHECK (reqlock);
487	X_MUTEX_CHECK (reqwait);
488	X_MUTEX_CHECK (preadwritelock);
489	X_MUTEX_CHECK (readdirlock);
490		909
491	X_COND_CHECK (reqwait);	910	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
492	#else
493	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
494	#endif
495		911
496	create_respipe ();	912	create_respipe ();
497		913
498	if (eio_init (want_poll, done_poll) < 0)	914	if (eio_init (want_poll, done_poll) < 0)
499	croak ("IO::AIO: unable to initialise eio library");	915	croak ("IO::AIO: unable to initialise eio library");
500		916
501	/* atfork child called in fifo order, so before eio's handler */	917	/* atfork child called in fifo order, so before eio's handler */
502	X_THREAD_ATFORK (0, 0, atfork_child);	918	X_THREAD_ATFORK (0, 0, atfork_child);
503	}	919	}
504		920
505	void	921	void
506	max_poll_reqs (int nreqs)	922	max_poll_reqs (unsigned int nreqs)
507	PROTOTYPE: $	923	PROTOTYPE: $
508	CODE:	924	CODE:
509	eio_set_max_poll_reqs (nreqs);	925	eio_set_max_poll_reqs (nreqs);
510		926
511	void	927	void
…		…
513	PROTOTYPE: $	929	PROTOTYPE: $
514	CODE:	930	CODE:
515	eio_set_max_poll_time (nseconds);	931	eio_set_max_poll_time (nseconds);
516		932
517	void	933	void
518	min_parallel (int nthreads)	934	min_parallel (unsigned int nthreads)
519	PROTOTYPE: $	935	PROTOTYPE: $
520	CODE:	936	CODE:
521	eio_set_min_parallel (nthreads);	937	eio_set_min_parallel (nthreads);
522		938
523	void	939	void
524	max_parallel (int nthreads)	940	max_parallel (unsigned int nthreads)
525	PROTOTYPE: $	941	PROTOTYPE: $
526	CODE:	942	CODE:
527	eio_set_max_parallel (nthreads);	943	eio_set_max_parallel (nthreads);
528		944
529	void	945	void
530	max_idle (int nthreads)	946	max_idle (unsigned int nthreads)
531	PROTOTYPE: $	947	PROTOTYPE: $
532	CODE:	948	CODE:
533	eio_set_max_idle (nthreads);	949	eio_set_max_idle (nthreads);
534		950
535	void	951	void
		952	idle_timeout (unsigned int seconds)
		953	PROTOTYPE: $
		954	CODE:
		955	eio_set_idle_timeout (seconds);
		956
		957	void
536	max_outstanding (int maxreqs)	958	max_outstanding (unsigned int maxreqs)
537	PROTOTYPE: $	959	PROTOTYPE: $
538	CODE:	960	CODE:
539	max_outstanding = maxreqs;	961	max_outstanding = maxreqs;
540		962
541	void	963	void
542	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	964	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
543	PROTOTYPE: $$$;$
544	PPCODE:	965	PPCODE:
545	{	966	{
546	dREQ;	967	dREQ;
547		968
548	req->type = EIO_OPEN;	969	req->type = EIO_OPEN;
…		…
554	REQ_SEND;	975	REQ_SEND;
555	}	976	}
556		977
557	void	978	void
558	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	979	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
559	PROTOTYPE: $;$
560	ALIAS:	980	ALIAS:
561	aio_fsync = EIO_FSYNC	981	aio_fsync = EIO_FSYNC
562	aio_fdatasync = EIO_FDATASYNC	982	aio_fdatasync = EIO_FDATASYNC
563	PPCODE:	983	PPCODE:
564	{	984	{
		985	int fd = s_fileno_croak (fh, 0);
565	dREQ;	986	dREQ;
566		987
567	req->type = ix;	988	req->type = ix;
568	req->sv1 = newSVsv (fh);	989	req->sv1 = newSVsv (fh);
569	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	990	req->int1 = fd;
570		991
571	REQ_SEND (req);	992	REQ_SEND (req);
572	}	993	}
573		994
574	void	995	void
		996	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		997	PPCODE:
		998	{
		999	int fd = s_fileno_croak (fh, 0);
		1000	dREQ;
		1001
		1002	req->type = EIO_SYNC_FILE_RANGE;
		1003	req->sv1 = newSVsv (fh);
		1004	req->int1 = fd;
		1005	req->offs = offset;
		1006	req->size = nbytes;
		1007	req->int2 = flags;
		1008
		1009	REQ_SEND (req);
		1010	}
		1011
		1012	void
		1013	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1014	PPCODE:
		1015	{
		1016	int fd = s_fileno_croak (fh, 0);
		1017	dREQ;
		1018
		1019	req->type = EIO_FALLOCATE;
		1020	req->sv1 = newSVsv (fh);
		1021	req->int1 = fd;
		1022	req->int2 = mode;
		1023	req->offs = offset;
		1024	req->size = len;
		1025
		1026	REQ_SEND (req);
		1027	}
		1028
		1029	void
575	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1030	aio_close (SV *fh, SV *callback=&PL_sv_undef)
576	PROTOTYPE: $;$
577	PPCODE:	1031	PPCODE:
578	{	1032	{
579	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1033	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		1034	int fd = s_fileno_croak (fh, 0);
580	dREQ;	1035	dREQ;
581		1036
582	if (close_pipe < 0)	1037	if (close_pipe < 0)
583	{	1038	{
584	int pipefd [2];	1039	int pipefd [2];
…		…
592	}	1047	}
593		1048
594	req->type = EIO_DUP2;	1049	req->type = EIO_DUP2;
595	req->int1 = close_pipe;	1050	req->int1 = close_pipe;
596	req->sv2 = newSVsv (fh);	1051	req->sv2 = newSVsv (fh);
597	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1052	req->int2 = fd;
598		1053
599	REQ_SEND (req);	1054	REQ_SEND (req);
600	}	1055	}
601		1056
602	void	1057	void
603	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1058	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
604	ALIAS:	1059	ALIAS:
605	aio_read = EIO_READ	1060	aio_read = EIO_READ
606	aio_write = EIO_WRITE	1061	aio_write = EIO_WRITE
607	PROTOTYPE: $$$$$;$
608	PPCODE:	1062	PPCODE:
609	{	1063	{
610	STRLEN svlen;	1064	STRLEN svlen;
		1065	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
611	char *svptr = SvPVbyte (data, svlen);	1066	char *svptr = SvPVbyte (data, svlen);
612	UV len = SvUV (length);	1067	UV len = SvUV (length);
613
614	SvUPGRADE (data, SVt_PV);
615	SvPOK_on (data);
616		1068
617	if (dataoffset < 0)	1069	if (dataoffset < 0)
618	dataoffset += svlen;	1070	dataoffset += svlen;
619		1071
620	if (dataoffset < 0 || dataoffset > svlen)	1072	if (dataoffset < 0 || dataoffset > svlen)
…		…
626	if (!SvOK (length) || len + dataoffset > svlen)	1078	if (!SvOK (length) || len + dataoffset > svlen)
627	len = svlen - dataoffset;	1079	len = svlen - dataoffset;
628	}	1080	}
629	else	1081	else
630	{	1082	{
631	/* read: grow scalar as necessary */	1083	/* read: check type and grow scalar as necessary */
		1084	SvUPGRADE (data, SVt_PV);
632	svptr = SvGROW (data, len + dataoffset + 1);	1085	svptr = SvGROW (data, len + dataoffset + 1);
633	}	1086	}
634		1087
635	if (len < 0)
636	croak ("length must not be negative");
637
638	{	1088	{
639	dREQ;	1089	dREQ;
640		1090
641	req->type = ix;	1091	req->type = ix;
642	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
643	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1093	req->int1 = fd;
644	: IoOFP (sv_2io (fh)));
645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1094	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
646	req->size = len;	1095	req->size = len;
647	req->sv2 = SvREFCNT_inc (data);	1096	req->sv2 = SvREFCNT_inc (data);
648	req->ptr2 = (char *)svptr + dataoffset;	1097	req->ptr2 = (char *)svptr + dataoffset;
649	req->stroffset = dataoffset;	1098	req->stroffset = dataoffset;
…		…
658	}	1107	}
659	}	1108	}
660		1109
661	void	1110	void
662	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1111	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$;$	1112	ALIAS:
		1113	aio_readlink = EIO_READLINK
		1114	aio_realpath = EIO_REALPATH
664	PPCODE:	1115	PPCODE:
665	{	1116	{
666	SV *data;	1117	SV *data;
667	dREQ;	1118	dREQ;
668		1119
669	data = newSV (NAME_MAX);
670	SvPOK_on (data);
671
672	req->type = EIO_READLINK;	1120	req->type = ix;
673	req->sv1 = newSVsv (path);	1121	req->sv1 = newSVsv (path);
674	req->ptr1 = SvPVbyte_nolen (req->sv1);	1122	req->ptr1 = SvPVbyte_nolen (req->sv1);
675	req->sv2 = data;
676	req->ptr2 = SvPVbyte_nolen (data);
677		1123
678	REQ_SEND;	1124	REQ_SEND;
679	}	1125	}
680		1126
681	void	1127	void
682	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1128	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
683	PROTOTYPE: $$$$;$
684	PPCODE:	1129	PPCODE:
685	{	1130	{
		1131	int ifd = s_fileno_croak (in_fh , 0);
		1132	int ofd = s_fileno_croak (out_fh, 1);
686	dREQ;	1133	dREQ;
687		1134
688	req->type = EIO_SENDFILE;	1135	req->type = EIO_SENDFILE;
689	req->sv1 = newSVsv (out_fh);	1136	req->sv1 = newSVsv (out_fh);
690	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1137	req->int1 = ofd;
691	req->sv2 = newSVsv (in_fh);	1138	req->sv2 = newSVsv (in_fh);
692	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1139	req->int2 = ifd;
693	req->offs = SvVAL64 (in_offset);	1140	req->offs = in_offset;
694	req->size = length;	1141	req->size = length;
695		1142
696	REQ_SEND;	1143	REQ_SEND;
697	}	1144	}
698		1145
699	void	1146	void
700	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1147	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $$$;$
702	PPCODE:	1148	PPCODE:
703	{	1149	{
		1150	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1151	dREQ;
705		1152
706	req->type = EIO_READAHEAD;	1153	req->type = EIO_READAHEAD;
707	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1155	req->int1 = fd;
709	req->offs = SvVAL64 (offset);	1156	req->offs = offset;
710	req->size = length;	1157	req->size = length;
711		1158
712	REQ_SEND;	1159	REQ_SEND;
713	}	1160	}
714		1161
715	void	1162	void
716	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1163	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
717	ALIAS:	1164	ALIAS:
718	aio_stat = EIO_STAT	1165	aio_stat = EIO_STAT
719	aio_lstat = EIO_LSTAT	1166	aio_lstat = EIO_LSTAT
		1167	aio_statvfs = EIO_STATVFS
720	PPCODE:	1168	PPCODE:
721	{	1169	{
722	dREQ;	1170	dREQ;
723		1171
724	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
725	if (!req->ptr2)
726	{
727	req_destroy (req);
728	croak ("out of memory during aio_stat statdata allocation");
729	}
730
731	req->flags |= EIO_FLAG_PTR2_FREE;
732	req->sv1 = newSVsv (fh_or_path);	1172	req->sv1 = newSVsv (fh_or_path);
733		1173
734	if (SvPOK (fh_or_path))	1174	if (SvPOK (req->sv1))
735	{	1175	{
736	req->type = ix;	1176	req->type = ix;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);	1177	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}	1178	}
739	else	1179	else
740	{	1180	{
741	req->type = EIO_FSTAT;	1181	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1182	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}	1183	}
744		1184
745	REQ_SEND;	1185	REQ_SEND;
746	}	1186	}
		1187
		1188	UV
		1189	major (UV dev)
		1190	ALIAS:
		1191	minor = 1
		1192	CODE:
		1193	RETVAL = ix ? major (dev) : minor (dev);
		1194	OUTPUT:
		1195	RETVAL
		1196
		1197	UV
		1198	makedev (UV maj, UV min)
		1199	CODE:
		1200	RETVAL = makedev (maj, min);
		1201	OUTPUT:
		1202	RETVAL
747		1203
748	void	1204	void
749	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1205	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
750	PPCODE:	1206	PPCODE:
751	{	1207	{
…		…
753		1209
754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1210	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
755	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1211	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
756	req->sv1 = newSVsv (fh_or_path);	1212	req->sv1 = newSVsv (fh_or_path);
757		1213
758	if (SvPOK (fh_or_path))	1214	if (SvPOK (req->sv1))
759	{	1215	{
760	req->type = EIO_UTIME;	1216	req->type = EIO_UTIME;
761	req->ptr1 = SvPVbyte_nolen (req->sv1);	1217	req->ptr1 = SvPVbyte_nolen (req->sv1);
762	}	1218	}
763	else	1219	else
…		…
776	dREQ;	1232	dREQ;
777		1233
778	req->sv1 = newSVsv (fh_or_path);	1234	req->sv1 = newSVsv (fh_or_path);
779	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1235	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
780		1236
781	if (SvPOK (fh_or_path))	1237	if (SvPOK (req->sv1))
782	{	1238	{
783	req->type = EIO_TRUNCATE;	1239	req->type = EIO_TRUNCATE;
784	req->ptr1 = SvPVbyte_nolen (req->sv1);	1240	req->ptr1 = SvPVbyte_nolen (req->sv1);
785	}	1241	}
786	else	1242	else
…		…
794		1250
795	void	1251	void
796	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1252	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
797	ALIAS:	1253	ALIAS:
798	aio_chmod = EIO_CHMOD	1254	aio_chmod = EIO_CHMOD
799	aio_fchmod = EIO_FCHMOD
800	aio_mkdir = EIO_MKDIR	1255	aio_mkdir = EIO_MKDIR
801	PPCODE:	1256	PPCODE:
802	{	1257	{
803	dREQ;	1258	dREQ;
804		1259
805	req->type = ix;
806	req->int2 = mode;	1260	req->int2 = mode;
807	req->sv1 = newSVsv (fh_or_path);	1261	req->sv1 = newSVsv (fh_or_path);
808		1262
809	if (ix == EIO_FCHMOD)	1263	if (SvPOK (req->sv1))
810	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1264	{
		1265	req->type = ix;
		1266	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1267	}
811	else	1268	else
812	req->ptr1 = SvPVbyte_nolen (req->sv1);	1269	{
		1270	req->type = EIO_FCHMOD;
		1271	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1272	}
813		1273
814	REQ_SEND;	1274	REQ_SEND;
815	}	1275	}
816		1276
817	void	1277	void
…		…
822		1282
823	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1283	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
824	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1284	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
825	req->sv1 = newSVsv (fh_or_path);	1285	req->sv1 = newSVsv (fh_or_path);
826		1286
827	if (SvPOK (fh_or_path))	1287	if (SvPOK (req->sv1))
828	{	1288	{
829	req->type = EIO_CHOWN;	1289	req->type = EIO_CHOWN;
830	req->ptr1 = SvPVbyte_nolen (req->sv1);	1290	req->ptr1 = SvPVbyte_nolen (req->sv1);
831	}	1291	}
832	else	1292	else
…		…
837		1297
838	REQ_SEND;	1298	REQ_SEND;
839	}	1299	}
840		1300
841	void	1301	void
		1302	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1303	PPCODE:
		1304	{
		1305	dREQ;
		1306
		1307	req->type = EIO_READDIR;
		1308	req->sv1 = newSVsv (pathname);
		1309	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1310	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1311
		1312	if (flags & EIO_READDIR_DENTS)
		1313	req->int1 |= EIO_READDIR_CUSTOM2;
		1314
		1315	REQ_SEND;
		1316	}
		1317
		1318	void
842	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1319	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
843	ALIAS:	1320	ALIAS:
844	aio_unlink = EIO_UNLINK	1321	aio_unlink = EIO_UNLINK
845	aio_rmdir = EIO_RMDIR	1322	aio_rmdir = EIO_RMDIR
846	aio_readdir = EIO_READDIR	1323	aio_readdir = EIO_READDIR
…		…
888		1365
889	REQ_SEND;	1366	REQ_SEND;
890	}	1367	}
891		1368
892	void	1369	void
		1370	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1371	ALIAS:
		1372	aio_mtouch = EIO_MTOUCH
		1373	aio_msync = EIO_MSYNC
		1374	PPCODE:
		1375	{
		1376	STRLEN svlen;
		1377	char *svptr = SvPVbyte (data, svlen);
		1378	UV len = SvUV (length);
		1379
		1380	if (offset < 0)
		1381	offset += svlen;
		1382
		1383	if (offset < 0 || offset > svlen)
		1384	croak ("offset outside of scalar");
		1385
		1386	if (!SvOK (length) || len + offset > svlen)
		1387	len = svlen - offset;
		1388
		1389	{
		1390	dREQ;
		1391
		1392	req->type = ix;
		1393	req->sv2 = SvREFCNT_inc (data);
		1394	req->ptr2 = (char *)svptr + offset;
		1395	req->size = len;
		1396	req->int1 = flags;
		1397
		1398	REQ_SEND;
		1399	}
		1400	}
		1401
		1402	void
		1403	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1404	PPCODE:
		1405	{
		1406	STRLEN svlen;
		1407	char *svptr = SvPVbyte (data, svlen);
		1408	UV len = SvUV (length);
		1409
		1410	if (offset < 0)
		1411	offset += svlen;
		1412
		1413	if (offset < 0 || offset > svlen)
		1414	croak ("offset outside of scalar");
		1415
		1416	if (!SvOK (length) || len + offset > svlen)
		1417	len = svlen - offset;
		1418
		1419	{
		1420	dREQ;
		1421
		1422	req->type = EIO_MLOCK;
		1423	req->sv2 = SvREFCNT_inc (data);
		1424	req->ptr2 = (char *)svptr + offset;
		1425	req->size = len;
		1426
		1427	REQ_SEND;
		1428	}
		1429	}
		1430
		1431	void
		1432	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1433	PPCODE:
		1434	{
		1435	dREQ;
		1436
		1437	req->type = EIO_MLOCKALL;
		1438	req->int1 = flags;
		1439
		1440	REQ_SEND;
		1441	}
		1442
		1443	void
893	aio_busy (double delay, SV *callback=&PL_sv_undef)	1444	aio_busy (double delay, SV *callback=&PL_sv_undef)
894	PPCODE:	1445	PPCODE:
895	{	1446	{
896	dREQ;	1447	dREQ;
897		1448
…		…
901	REQ_SEND;	1452	REQ_SEND;
902	}	1453	}
903		1454
904	void	1455	void
905	aio_group (SV *callback=&PL_sv_undef)	1456	aio_group (SV *callback=&PL_sv_undef)
906	PROTOTYPE: ;$
907	PPCODE:	1457	PPCODE:
908	{	1458	{
909	dREQ;	1459	dREQ;
910		1460
911	req->type = EIO_GROUP;	1461	req->type = EIO_GROUP;
912		1462
913	eio_submit (req);	1463	req_submit (req);
914	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1464	XPUSHs (req_sv (req, aio_grp_stash));
915	}	1465	}
916		1466
917	void	1467	void
918	aio_nop (SV *callback=&PL_sv_undef)	1468	aio_nop (SV *callback=&PL_sv_undef)
919	ALIAS:	1469	ALIAS:
…		…
928	REQ_SEND;	1478	REQ_SEND;
929	}	1479	}
930		1480
931	int	1481	int
932	aioreq_pri (int pri = 0)	1482	aioreq_pri (int pri = 0)
933	PROTOTYPE: ;$
934	CODE:	1483	CODE:
935	RETVAL = next_pri - EIO_PRI_BIAS;	1484	RETVAL = next_pri;
936	if (items > 0)	1485	if (items > 0)
937	{	1486	{
938	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1487	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
939	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1488	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
940	next_pri = pri + EIO_PRI_BIAS;	1489	next_pri = pri;
941	}	1490	}
942	OUTPUT:	1491	OUTPUT:
943	RETVAL	1492	RETVAL
944		1493
945	void	1494	void
946	aioreq_nice (int nice = 0)	1495	aioreq_nice (int nice = 0)
947	CODE:	1496	CODE:
948	nice = next_pri - nice;	1497	nice = next_pri - nice;
949	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1498	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
950	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1499	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
951	next_pri = nice + EIO_PRI_BIAS;	1500	next_pri = nice;
952		1501
953	void	1502	void
954	flush ()	1503	flush ()
955	PROTOTYPE:
956	CODE:	1504	CODE:
957	while (eio_nreqs ())	1505	while (eio_nreqs ())
958	{	1506	{
959	poll_wait ();	1507	poll_wait ();
960	poll_cb ();	1508	poll_cb ();
961	}	1509	}
962		1510
963	int	1511	int
964	poll()	1512	poll ()
965	PROTOTYPE:
966	CODE:	1513	CODE:
967	poll_wait ();	1514	poll_wait ();
968	RETVAL = poll_cb ();	1515	RETVAL = poll_cb ();
969	OUTPUT:	1516	OUTPUT:
970	RETVAL	1517	RETVAL
971		1518
972	int	1519	int
973	poll_fileno()	1520	poll_fileno ()
974	PROTOTYPE:
975	CODE:	1521	CODE:
976	RETVAL = respipe [0];	1522	RETVAL = s_epipe_fd (&respipe);
977	OUTPUT:	1523	OUTPUT:
978	RETVAL	1524	RETVAL
979		1525
980	int	1526	int
981	poll_cb(...)	1527	poll_cb (...)
982	PROTOTYPE:	1528	PROTOTYPE:
983	CODE:	1529	CODE:
984	RETVAL = poll_cb ();	1530	RETVAL = poll_cb ();
985	OUTPUT:	1531	OUTPUT:
986	RETVAL	1532	RETVAL
987		1533
988	void	1534	void
989	poll_wait()	1535	poll_wait ()
990	PROTOTYPE:
991	CODE:	1536	CODE:
992	poll_wait ();	1537	poll_wait ();
993		1538
994	int	1539	int
995	nreqs()	1540	nreqs ()
996	PROTOTYPE:
997	CODE:	1541	CODE:
998	RETVAL = eio_nreqs ();	1542	RETVAL = eio_nreqs ();
999	OUTPUT:	1543	OUTPUT:
1000	RETVAL	1544	RETVAL
1001		1545
1002	int	1546	int
1003	nready()	1547	nready ()
1004	PROTOTYPE:
1005	CODE:	1548	CODE:
1006	RETVAL = eio_nready ();	1549	RETVAL = eio_nready ();
1007	OUTPUT:	1550	OUTPUT:
1008	RETVAL	1551	RETVAL
1009		1552
1010	int	1553	int
1011	npending()	1554	npending ()
1012	PROTOTYPE:
1013	CODE:	1555	CODE:
1014	RETVAL = eio_npending ();	1556	RETVAL = eio_npending ();
1015	OUTPUT:	1557	OUTPUT:
1016	RETVAL	1558	RETVAL
1017		1559
1018	int	1560	int
1019	nthreads()	1561	nthreads ()
1020	PROTOTYPE:
1021	CODE:	1562	CODE:
1022	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1563	RETVAL = eio_nthreads ();
1023	RETVAL = started;
1024	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1025	OUTPUT:	1564	OUTPUT:
1026	RETVAL	1565	RETVAL
1027		1566
		1567	int
		1568	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1569	CODE:
		1570	RETVAL = posix_fadvise (fh, offset, length, advice);
		1571	OUTPUT:
		1572	RETVAL
		1573
		1574	ssize_t
		1575	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1576	CODE:
		1577	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1578	OUTPUT:
		1579	RETVAL
		1580
		1581	void
		1582	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1583	PPCODE:
		1584	sv_unmagic (scalar, MMAP_MAGIC);
		1585	{
		1586	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1587	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1588	if (addr == (void *)-1)
		1589	XSRETURN_NO;
		1590
		1591	sv_force_normal (scalar);
		1592
		1593	/* we store the length in mg_obj, as namlen is I32 :/ */
		1594	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1595	->mg_obj = (SV *)length;
		1596
		1597	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1598
		1599	if (!(prot & PROT_WRITE))
		1600	SvREADONLY_on (scalar);
		1601
		1602	if (SvLEN (scalar))
		1603	Safefree (SvPVX (scalar));
		1604
		1605	SvPVX (scalar) = (char *)addr;
		1606	SvCUR_set (scalar, length);
		1607	SvLEN_set (scalar, 0);
		1608	SvPOK_only (scalar);
		1609
		1610	XSRETURN_YES;
		1611	}
		1612
		1613	void
		1614	munmap (SV *scalar)
		1615	CODE:
		1616	sv_unmagic (scalar, MMAP_MAGIC);
		1617
		1618	int
		1619	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1620	ALIAS:
		1621	mprotect = 1
		1622	CODE:
		1623	{
		1624	STRLEN svlen;
		1625	void *addr = SvPVbyte (scalar, svlen);
		1626	size_t len = SvUV (length);
		1627
		1628	if (offset < 0)
		1629	offset += svlen;
		1630
		1631	if (offset < 0 || offset > svlen)
		1632	croak ("offset outside of scalar");
		1633
		1634	if (!SvOK (length) || len + offset > svlen)
		1635	len = svlen - offset;
		1636
		1637	addr = (void *)(((intptr_t)addr) + offset);
		1638	eio_page_align (&addr, &len);
		1639
		1640	switch (ix)
		1641	{
		1642	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1643	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1644	}
		1645	}
		1646	OUTPUT:
		1647	RETVAL
		1648
		1649	int
		1650	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1651	CODE:
		1652	{
		1653	STRLEN svlen;
		1654	void *addr = SvPVbyte (scalar, svlen);
		1655	size_t len = SvUV (length);
		1656
		1657	if (offset < 0)
		1658	offset += svlen;
		1659
		1660	if (offset < 0 || offset > svlen)
		1661	croak ("offset outside of scalar");
		1662
		1663	if (!SvOK (length) || len + offset > svlen)
		1664	len = svlen - offset;
		1665
		1666	addr = (void *)(((intptr_t)addr) + offset);
		1667	eio_page_align (&addr, &len);
		1668	#if _POSIX_MEMLOCK_RANGE
		1669	RETVAL = munlock (addr, len);
		1670	#else
		1671	RETVAL = ((errno = ENOSYS), -1);
		1672	#endif
		1673	}
		1674	OUTPUT:
		1675	RETVAL
		1676
		1677	int
		1678	munlockall ()
		1679	CODE:
		1680	#if _POSIX_MEMLOCK
		1681	munlockall ();
		1682	#else
		1683	RETVAL = -1;
		1684	errno = ENOSYS;
		1685	#endif
		1686	OUTPUT:
		1687	RETVAL
		1688
1028	void _on_next_submit (SV *cb)	1689	void _on_next_submit (SV *cb)
1029	CODE:	1690	CODE:
1030	SvREFCNT_dec (on_next_submit);	1691	SvREFCNT_dec (on_next_submit);
1031	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1692	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1032		1693
…		…
1039	CODE:	1700	CODE:
1040	eio_cancel (req);	1701	eio_cancel (req);
1041		1702
1042	void	1703	void
1043	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1704	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1044	CODE:	1705	PPCODE:
		1706	{
		1707	if (GIMME_V != G_VOID)
		1708	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1709
		1710	if (items > 1)
		1711	{
		1712	SV *cb_cv =get_cb (callback);
		1713
1045	SvREFCNT_dec (req->callback);	1714	SvREFCNT_dec (req->callback);
1046	req->callback = newSVsv (callback);	1715	req->callback = SvREFCNT_inc (cb_cv);
		1716	}
		1717	}
1047		1718
1048	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1719	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1049		1720
1050	void	1721	void
1051	add (aio_req grp, ...)	1722	add (aio_req grp, ...)
…		…
1083	AV *av;	1754	AV *av;
1084		1755
1085	grp->errorno = errno;	1756	grp->errorno = errno;
1086		1757
1087	av = newAV ();	1758	av = newAV ();
		1759	av_extend (av, items - 1);
1088		1760
1089	for (i = 1; i < items; ++i )	1761	for (i = 1; i < items; ++i )
1090	av_push (av, newSVsv (ST (i)));	1762	av_push (av, newSVsv (ST (i)));
1091		1763
1092	SvREFCNT_dec (grp->sv1);	1764	SvREFCNT_dec (grp->sv1);
…		…
1106	void	1778	void
1107	feed (aio_req grp, SV *callback=&PL_sv_undef)	1779	feed (aio_req grp, SV *callback=&PL_sv_undef)
1108	CODE:	1780	CODE:
1109	{	1781	{
1110	SvREFCNT_dec (grp->sv2);	1782	SvREFCNT_dec (grp->sv2);
1111	grp->sv2 = newSVsv (callback);	1783	grp->sv2 = newSVsv (callback);
		1784	grp->feed = aio_grp_feed;
1112		1785
1113	if (grp->int2 <= 0)	1786	if (grp->int2 <= 0)
1114	grp->int2 = 2;	1787	grp->int2 = 2;
1115		1788
1116	eio_grp_limit (grp, grp->int2);	1789	eio_grp_limit (grp, grp->int2);

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