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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.146 by root, Fri Jun 12 17:07:00 2009 UTC vs.
Revision 1.188 by root, Sun Jul 17 04:20:04 2011 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		26
70	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	29	#undef readdir
73	#undef opendir	30	#undef opendir
74	#undef closedir	31	#undef closedir
75		32
		33	#ifdef _WIN32
		34
		35	#define EIO_STRUCT_DIRENT Direntry_t
		36	#undef malloc
		37	#undef free
		38
		39	// perl overrides all those nice libc functions
		40	#undef open
		41	#undef read
		42	#undef write
		43	#undef send
		44	#undef recv
		45	#undef stat
		46	#undef lstat
		47	#undef fstat
		48	#undef truncate
		49	#undef ftruncate
		50	#undef open
		51	#undef link
		52	#undef close
		53	#undef unlink
		54	#undef mkdir
		55	#undef rmdir
		56	#undef rename
		57	#undef lseek
		58	#undef opendir
		59	#undef readdir
		60	#undef closedir
		61	#undef chmod
		62	#undef fchmod
		63	#undef dup
		64	#undef dup2
		65	#undef abort
		66	#undef pipe
		67
		68	#else
		69
		70	#include <sys/time.h>
		71	#include <sys/select.h>
		72	#include <unistd.h>
		73	#include <utime.h>
		74	#include <signal.h>
		75
		76	#endif
		77
76	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
77		79
78	/* use NV for 32 bit perls as it allows larger offsets */	80	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	81	#if IVSIZE >= 8
		82	# define VAL64 IV
80	# define SvVAL64 SvIV	83	# define SvVAL64 SvIV
		84	# define newSVval64 newSViv
81	#else	85	#else
		86	# define VAL64 NV
82	# define SvVAL64 SvNV	87	# define SvVAL64 SvNV
		88	# define newSVval64 newSVnv
83	#endif	89	#endif
84		90
85	/*****************************************************************************/	91	/*****************************************************************************/
86		92
87	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
95		101
96	/*****************************************************************************/	102	/*****************************************************************************/
97		103
98	static HV *stash;
99	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
100		107
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		109
104	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
105	SV *callback; \	111	SV *callback; \
106	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
107	STRLEN stroffset; \	113	STRLEN stroffset; \
108	SV *self;	114	SV *self;
109		115
110	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
111		117
		118	#include "libeio/config.h"
112	#include "libeio/eio.h"	119	#include "libeio/eio.h"
113		120
114	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
118		125
		126	#include "libeio/eio.c"
		127
		128	/* Linux/others */
		129	#ifndef O_ASYNC
		130	# define O_ASYNC 0
		131	#endif
		132	#ifndef O_DIRECT
		133	# define O_DIRECT 0
		134	#endif
		135	#ifndef O_NOATIME
		136	# define O_NOATIME 0
		137	#endif
		138
		139	/* POSIX */
		140	#ifndef O_CLOEXEC
		141	# define O_CLOEXEC 0
		142	#endif
		143	#ifndef O_NOFOLLOW
		144	# define O_NOFOLLOW 0
		145	#endif
		146	#ifndef O_NOCTTY
		147	# define O_NOCTTY 0
		148	#endif
		149	#ifndef O_NONBLOCK
		150	# define O_NONBLOCK 0
		151	#endif
		152	#ifndef O_EXEC
		153	# define O_EXEC 0
		154	#endif
		155	#ifndef O_SEARCH
		156	# define O_SEARCH 0
		157	#endif
		158	#ifndef O_DIRECTORY
		159	# define O_DIRECTORY 0
		160	#endif
		161	#ifndef O_DSYNC
		162	# define O_DSYNC 0
		163	#endif
		164	#ifndef O_RSYNC
		165	# define O_RSYNC 0
		166	#endif
		167	#ifndef O_SYNC
		168	# define O_SYNC 0
		169	#endif
		170	#ifndef O_TTY_INIT
		171	# define O_TTY_INIT 0
		172	#endif
		173
		174	#ifndef POSIX_FADV_NORMAL
		175	# define POSIX_FADV_NORMAL 0
		176	#endif
		177	#ifndef POSIX_FADV_SEQUENTIAL
		178	# define POSIX_FADV_SEQUENTIAL 0
		179	#endif
		180	#ifndef POSIX_FADV_RANDOM
		181	# define POSIX_FADV_RANDOM 0
		182	#endif
		183	#ifndef POSIX_FADV_NOREUSE
		184	# define POSIX_FADV_NOREUSE 0
		185	#endif
		186	#ifndef POSIX_FADV_WILLNEED
		187	# define POSIX_FADV_WILLNEED 0
		188	#endif
		189	#ifndef POSIX_FADV_DONTNEED
		190	# define POSIX_FADV_DONTNEED 0
		191	#endif
		192
		193	#if !HAVE_POSIX_FADVISE
		194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		195	#endif
		196
		197	#ifndef POSIX_MADV_NORMAL
		198	# define POSIX_MADV_NORMAL 0
		199	#endif
		200	#ifndef POSIX_MADV_SEQUENTIAL
		201	# define POSIX_MADV_SEQUENTIAL 0
		202	#endif
		203	#ifndef POSIX_MADV_RANDOM
		204	# define POSIX_MADV_RANDOM 0
		205	#endif
		206	#ifndef POSIX_MADV_WILLNEED
		207	# define POSIX_MADV_WILLNEED 0
		208	#endif
		209	#ifndef POSIX_MADV_DONTNEED
		210	# define POSIX_MADV_DONTNEED 0
		211	#endif
		212
		213	#if !HAVE_POSIX_MADVISE
		214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		215	#endif
		216
		217	#ifndef PROT_NONE
		218	# define PROT_NONE 0
		219	#endif
		220	#ifndef PROT_READ
		221	# define PROT_READ 0
		222	#endif
		223	#ifndef PROT_WRITE
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_EXEC
		227	# define PROT_EXEC 0
		228	#endif
		229
		230	#ifndef ST_RDONLY
		231	# define ST_RDONLY 0
		232	#endif
		233	#ifndef ST_NOSUID
		234	# define ST_NOSUID 0
		235	#endif
		236	#ifndef ST_NODEV
		237	# define ST_NODEV 0
		238	#endif
		239	#ifndef ST_NOEXEC
		240	# define ST_NOEXEC 0
		241	#endif
		242	#ifndef ST_SYNCHRONOUS
		243	# define ST_SYNCHRONOUS 0
		244	#endif
		245	#ifndef ST_MANDLOCK
		246	# define ST_MANDLOCK 0
		247	#endif
		248	#ifndef ST_WRITE
		249	# define ST_WRITE 0
		250	#endif
		251	#ifndef ST_APPEND
		252	# define ST_APPEND 0
		253	#endif
		254	#ifndef ST_IMMUTABLE
		255	# define ST_IMMUTABLE 0
		256	#endif
		257	#ifndef ST_NOATIME
		258	# define ST_NOATIME 0
		259	#endif
		260	#ifndef ST_NODIRATIME
		261	# define ST_NODIRATIME 0
		262	#endif
		263	#ifndef ST_RELATIME
		264	# define ST_RELATIME 0
		265	#endif
		266
		267	#ifndef S_IFIFO
		268	# define S_IFIFO 0
		269	#endif
		270	#ifndef S_IFCHR
		271	# define S_IFCHR 0
		272	#endif
		273	#ifndef S_IFBLK
		274	# define S_IFBLK 0
		275	#endif
		276	#ifndef S_IFLNK
		277	# define S_IFLNK 0
		278	#endif
		279	#ifndef S_IFREG
		280	# define S_IFREG 0
		281	#endif
		282	#ifndef S_IFDIR
		283	# define S_IFDIR 0
		284	#endif
		285	#ifndef S_IFWHT
		286	# define S_IFWHT 0
		287	#endif
		288	#ifndef S_IFSOCK
		289	# define S_IFSOCK 0
		290	#endif
		291
		292	#ifndef MAP_ANONYMOUS
		293	# ifdef MAP_ANON
		294	# define MAP_ANONYMOUS MAP_ANON
		295	# else
		296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		297	# endif
		298	#endif
		299	#ifndef MAP_HUGETLB
		300	# define MAP_HUGETLB 0
		301	#endif
		302	#ifndef MAP_LOCKED
		303	# define MAP_LOCKED 0
		304	#endif
		305	#ifndef MAP_NORESERVE
		306	# define MAP_NORESERVE 0
		307	#endif
		308	#ifndef MAP_POPULATE
		309	# define MAP_POPULATE 0
		310	#endif
		311	#ifndef MAP_NONBLOCK
		312	# define MAP_NONBLOCK 0
		313	#endif
		314
		315	#ifndef makedev
		316	# define makedev(maj,min) (((maj) << 8) | (min))
		317	#endif
		318	#ifndef major
		319	# define major(dev) ((dev) >> 8)
		320	#endif
		321	#ifndef minor
		322	# define minor(dev) ((dev) & 0xff)
		323	#endif
		324
		325	#ifndef PAGESIZE
		326	# define PAGESIZE sysconf (_SC_PAGESIZE)
		327	#endif
		328
119	enum {	329	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	331	};
122		332
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
127		335
128	static SV *on_next_submit;	336	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	337	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	338	static int max_outstanding;
131		339
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	340	static s_epipe respipe;
133		341
134	static void req_destroy (aio_req req);	342	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	343	static void req_cancel (aio_req req);
136		344
137	static void want_poll (void)	345	static void want_poll (void)
138	{	346	{
139	/* write a dummy byte to the pipe so fh becomes ready */	347	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	348	s_epipe_signal (&respipe);
141	}	349	}
142		350
143	static void done_poll (void)	351	static void done_poll (void)
144	{	352	{
145	/* read any signals sent by the worker threads */	353	/* read any signals sent by the worker threads */
146	char buf [4];	354	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	355	}
150		356
151	/* must be called at most once */	357	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	358	static SV *req_sv (aio_req req, HV *stash)
153	{	359	{
154	if (!req->self)	360	if (!req->self)
155	{	361	{
156	req->self = (SV *)newHV ();	362	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	363	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	364	}
159		365
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	366	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	367	}
162		368
163	static aio_req SvAIO_REQ (SV *sv)	369	static aio_req SvAIO_REQ (SV *sv)
164	{	370	{
165	MAGIC *mg;	371	MAGIC *mg;
166		372
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	373	if (!SvROK (sv)
		374	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		375	&& SvSTASH (SvRV (sv)) != aio_req_stash
		376	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	377	croak ("object of class IO::AIO::REQ expected");
169		378
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	379	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		380
172	return mg ? (aio_req)mg->mg_ptr : 0;	381	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	382	}
…		…
179	dSP;	388	dSP;
180		389
181	ENTER;	390	ENTER;
182	SAVETMPS;	391	SAVETMPS;
183	PUSHMARK (SP);	392	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	393	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	394	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	395	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	396	SPAGAIN;
188	FREETMPS;	397	FREETMPS;
189	LEAVE;	398	LEAVE;
…		…
207	}	416	}
208	}	417	}
209		418
210	static int req_invoke (eio_req *req)	419	static int req_invoke (eio_req *req)
211	{	420	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	421	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	422	SvREADONLY_off (req->sv2);
216		423
217	if (!EIO_CANCELLED (req) && req->callback)	424	if (!EIO_CANCELLED (req) && req->callback)
218	{	425	{
		426	dSP;
		427	static SV *sv_result_cache; /* caches the result integer SV */
		428	SV *sv_result;
		429
219	ENTER;	430	ENTER;
220	SAVETMPS;	431	SAVETMPS;
221	PUSHMARK (SP);	432	PUSHMARK (SP);
222	EXTEND (SP, 1);	433	EXTEND (SP, 1);
		434
		435	/* do not recreate the result IV from scratch each time */
		436	if (expect_true (sv_result_cache))
		437	{
		438	sv_result = sv_result_cache; sv_result_cache = 0;
		439	SvIV_set (sv_result, req->result);
		440	SvIOK_only (sv_result);
		441	}
		442	else
		443	{
		444	sv_result = newSViv (req->result);
		445	SvREADONLY_on (sv_result);
		446	}
223		447
224	switch (req->type)	448	switch (req->type)
225	{	449	{
226	case EIO_READDIR:	450	case EIO_READDIR:
227	{	451	{
228	SV *rv = &PL_sv_undef;	452	SV *rv = &PL_sv_undef;
229		453
230	if (req->result >= 0)	454	if (req->result >= 0)
231	{	455	{
232	int i;	456	int i;
233	char *buf = req->ptr2;	457	char *names = (char *)req->ptr2;
		458	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	459	AV *av = newAV ();
235		460
236	av_extend (av, req->result - 1);	461	av_extend (av, req->result - 1);
237		462
238	for (i = 0; i < req->result; ++i)	463	for (i = 0; i < req->result; ++i)
239	{	464	{
240	if (req->int1 & EIO_READDIR_DENTS)	465	if (req->int1 & EIO_READDIR_DENTS)
241	{	466	{
242	eio_dirent *ent = (eio_dirent *)buf;
243	SV *namesv = newSVpvn (ent->name, ent->namelen);	467	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
244		468
245	if (req->int1 & EIO_READDIR_CUSTOM2)	469	if (req->int1 & EIO_READDIR_CUSTOM2)
246	{	470	{
247	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */	471	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
248	AV *avent = newAV ();	472	AV *avent = newAV ();
…		…
262	av_store (av, i, newRV_noinc ((SV *)avent));	486	av_store (av, i, newRV_noinc ((SV *)avent));
263	}	487	}
264	else	488	else
265	av_store (av, i, namesv);	489	av_store (av, i, namesv);
266		490
267	buf += sizeof (eio_dirent);	491	++ent;
268	}	492	}
269	else	493	else
270	{	494	{
271	SV *name = newSVpv (buf, 0);	495	SV *name = newSVpv (names, 0);
272	av_store (av, i, name);	496	av_store (av, i, name);
273	buf += SvCUR (name) + 1;	497	names += SvCUR (name) + 1;
274	}	498	}
275	}	499	}
276		500
277	rv = sv_2mortal (newRV_noinc ((SV *)av));	501	rv = sv_2mortal (newRV_noinc ((SV *)av));
278	}	502	}
…		…
295	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	519	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
296	char sym [64];	520	char sym [64];
297	int symlen;	521	int symlen;
298		522
299	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	523	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
300	gv_init (gv, stash, sym, symlen, 0);	524	gv_init (gv, aio_stash, sym, symlen, 0);
301		525
302	symlen = snprintf (	526	symlen = snprintf (
303	sym,	527	sym,
304	sizeof (sym),	528	sizeof (sym),
305	"%s&=%d",	529	"%s&=%d",
…		…
313		537
314	PUSHs (fh);	538	PUSHs (fh);
315	}	539	}
316	break;	540	break;
317		541
		542	case EIO_STATVFS:
		543	case EIO_FSTATVFS:
		544	{
		545	SV *rv = &PL_sv_undef;
		546
		547	#ifndef _WIN32
		548	if (req->result >= 0)
		549	{
		550	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		551	HV *hv = newHV ();
		552
		553	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		554
		555	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		556	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		557	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		558	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		559	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		560	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		561	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		562	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		563	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		564	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		565	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		566	}
		567	#endif
		568
		569	PUSHs (rv);
		570	}
		571
		572	break;
		573
318	case EIO_GROUP:	574	case EIO_GROUP:
319	req->int1 = 2; /* mark group as finished */	575	req->int1 = 2; /* mark group as finished */
320		576
321	if (req->sv1)	577	if (req->sv1)
322	{	578	{
…		…
332	case EIO_NOP:	588	case EIO_NOP:
333	case EIO_BUSY:	589	case EIO_BUSY:
334	break;	590	break;
335		591
336	case EIO_READLINK:	592	case EIO_READLINK:
		593	case EIO_REALPATH:
337	if (req->result > 0)	594	if (req->result > 0)
338	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	595	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
339	break;	596	break;
340		597
341	case EIO_STAT:	598	case EIO_STAT:
342	case EIO_LSTAT:	599	case EIO_LSTAT:
343	case EIO_FSTAT:	600	case EIO_FSTAT:
344	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	601	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
345	PL_laststatval = req->result;	602	PL_laststatval = req->result;
		603	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
346	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	604	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347	PUSHs (sv_2mortal (newSViv (req->result)));	605	PUSHs (sv_result);
348	break;	606	break;
349		607
350	case EIO_READ:	608	case EIO_READ:
351	{	609	{
352	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	610	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353	*SvEND (req->sv2) = 0;	611	*SvEND (req->sv2) = 0;
354	SvPOK_only (req->sv2);	612	SvPOK_only (req->sv2);
355	SvSETMAGIC (req->sv2);	613	SvSETMAGIC (req->sv2);
356	PUSHs (sv_2mortal (newSViv (req->result)));	614	PUSHs (sv_result);
357	}	615	}
358	break;	616	break;
359		617
360	case EIO_DUP2:	618	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
361	if (req->result > 0)	619	if (req->result > 0)
362	req->result = 0;	620	SvIV_set (sv_result, 0);
363	/* FALLTHROUGH */	621	/* FALLTHROUGH */
364		622
365	default:	623	default:
366	PUSHs (sv_2mortal (newSViv (req->result)));	624	PUSHs (sv_result);
367	break;	625	break;
368	}	626	}
369		627
370	errno = req->errorno;	628	errno = req->errorno;
371		629
372	PUTBACK;	630	PUTBACK;
373	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	631	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374	SPAGAIN;	632	SPAGAIN;
		633
		634	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		635	SvREFCNT_dec (sv_result);
		636	else
		637	sv_result_cache = sv_result;
375		638
376	FREETMPS;	639	FREETMPS;
377	LEAVE;	640	LEAVE;
378		641
379	PUTBACK;	642	PUTBACK;
…		…
397	Safefree (req);	660	Safefree (req);
398	}	661	}
399		662
400	static void req_cancel_subs (aio_req grp)	663	static void req_cancel_subs (aio_req grp)
401	{	664	{
402	aio_req sub;
403
404	if (grp->type != EIO_GROUP)	665	if (grp->type != EIO_GROUP)
405	return;	666	return;
406		667
407	SvREFCNT_dec (grp->sv2);	668	SvREFCNT_dec (grp->sv2);
408	grp->sv2 = 0;	669	grp->sv2 = 0;
409		670
410	eio_grp_cancel (grp);	671	eio_grp_cancel (grp);
411	}	672	}
412		673
413	#ifdef USE_SOCKETS_AS_HANDLES
414	# define TO_SOCKET(x) (win32_get_osfhandle (x))
415	#else
416	# define TO_SOCKET(x) (x)
417	#endif
418
419	static void
420	create_respipe (void)	674	static void create_respipe (void)
421	{	675	{
422	int old_readfd = respipe [0];
423
424	if (respipe [1] >= 0)
425	respipe_close (TO_SOCKET (respipe [1]));
426
427	#ifdef _WIN32
428	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
429	#else
430	if (pipe (respipe))	676	if (s_epipe_renew (&respipe))
431	#endif
432	croak ("unable to initialize result pipe");	677	croak ("IO::AIO: unable to initialize result pipe");
433
434	if (old_readfd >= 0)
435	{
436	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
437	croak ("unable to initialize result pipe(2)");
438
439	respipe_close (respipe [0]);
440	respipe [0] = old_readfd;
441	}
442
443	#ifdef _WIN32
444	int arg = 1;
445	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
446	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
447	#else
448	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
449	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
450	#endif
451	croak ("unable to initialize result pipe(3)");
452
453	respipe_osf [0] = TO_SOCKET (respipe [0]);
454	respipe_osf [1] = TO_SOCKET (respipe [1]);
455	}	678	}
456		679
457	static void poll_wait (void)	680	static void poll_wait (void)
458	{	681	{
459	fd_set rfd;
460
461	while (eio_nreqs ())	682	while (eio_nreqs ())
462	{	683	{
463	int size;	684	int size;
464		685
465	X_LOCK (reslock);	686	X_LOCK (reslock);
…		…
469	if (size)	690	if (size)
470	return;	691	return;
471		692
472	etp_maybe_start_thread ();	693	etp_maybe_start_thread ();
473		694
474	FD_ZERO (&rfd);	695	s_epipe_wait (&respipe);
475	FD_SET (respipe [0], &rfd);
476
477	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478	}	696	}
479	}	697	}
480		698
481	static int poll_cb (void)	699	static int poll_cb (void)
482	{	700	{
…		…
497	static void atfork_child (void)	715	static void atfork_child (void)
498	{	716	{
499	create_respipe ();	717	create_respipe ();
500	}	718	}
501		719
502	static SV *	720	/*****************************************************************************/
503	get_cb (SV *cb_sv)
504	{
505	HV *st;
506	GV *gvp;
507	CV *cv;
508		721
509	if (!SvOK (cb_sv))	722	#if !_POSIX_MAPPED_FILES
		723	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		724	# define munmap(addr,length) (errno = ENOSYS, -1)
		725	#endif
		726
		727	#if !_POSIX_MEMORY_PROTECTION
		728	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		729	# define PROT_NONE 0
		730	# define PROT_WRITE 0
		731	# define MAP_PRIVATE 0
		732	# define MAP_SHARED 0
		733	# define MAP_FIXED 0
		734	#endif
		735
		736	#define MMAP_MAGIC PERL_MAGIC_ext
		737
		738	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		739	{
		740	int old_errno = errno;
		741	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		742	errno = old_errno;
		743
		744	mg->mg_obj = 0; /* just in case */
		745
		746	SvREADONLY_off (sv);
		747
		748	if (SvPVX (sv) != mg->mg_ptr)
		749	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		750
		751	SvCUR_set (sv, 0);
		752	SvPVX (sv) = 0;
		753	SvOK_off (sv);
		754
510	return 0;	755	return 0;
		756	}
511		757
512	cv = sv_2cv (cb_sv, &st, &gvp, 0);	758	static MGVTBL mmap_vtbl = {
		759	0, 0, 0, 0, mmap_free
		760	};
513		761
514	if (!cv)	762	/*****************************************************************************/
515	croak ("IO::AIO callback must be undef or a CODE reference");
516		763
517	return (SV *)cv;	764	static SV * get_cb (SV *cb_sv)
		765	{
		766	SvGETMAGIC (cb_sv);
		767	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
518	}	768	}
519		769
520	#define dREQ \	770	#define dREQ \
521	SV *cb_cv; \	771	SV *cb_cv; \
522	aio_req req; \	772	aio_req req; \
…		…
536	PUTBACK; \	786	PUTBACK; \
537	req_submit (req); \	787	req_submit (req); \
538	SPAGAIN; \	788	SPAGAIN; \
539	\	789	\
540	if (GIMME_V != G_VOID) \	790	if (GIMME_V != G_VOID) \
541	XPUSHs (req_sv (req, AIO_REQ_KLASS));	791	XPUSHs (req_sv (req, aio_req_stash));
542
543	static int
544	extract_fd (SV *fh, int wr)
545	{
546	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
547
548	if (fd < 0)
549	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
550
551	return fd;
552	}
553		792
554	MODULE = IO::AIO PACKAGE = IO::AIO	793	MODULE = IO::AIO PACKAGE = IO::AIO
555		794
556	PROTOTYPES: ENABLE	795	PROTOTYPES: ENABLE
557		796
…		…
559	{	798	{
560	static const struct {	799	static const struct {
561	const char *name;	800	const char *name;
562	IV iv;	801	IV iv;
563	} *civ, const_iv[] = {	802	} *civ, const_iv[] = {
564	# define const_iv(name, value) { # name, (IV) value },	803	# define const_niv(name, value) { # name, (IV) value },
		804	# define const_iv(name) { # name, (IV) name },
565	# define const_eio(name) { # name, (IV) EIO_ ## name },	805	# define const_eio(name) { # name, (IV) EIO_ ## name },
566	const_iv (EXDEV , EXDEV)	806	const_iv (EXDEV)
567	const_iv (ENOSYS , ENOSYS)	807	const_iv (ENOSYS)
568	const_iv (O_RDONLY, O_RDONLY)	808	const_iv (O_RDONLY)
569	const_iv (O_WRONLY, O_WRONLY)	809	const_iv (O_WRONLY)
		810	const_iv (O_RDWR)
570	const_iv (O_CREAT , O_CREAT)	811	const_iv (O_CREAT)
571	const_iv (O_TRUNC , O_TRUNC)	812	const_iv (O_TRUNC)
572	#ifndef _WIN32	813	const_iv (O_EXCL)
		814	const_iv (O_APPEND)
		815
		816	const_iv (O_ASYNC)
		817	const_iv (O_DIRECT)
		818	const_iv (O_NOATIME)
		819
		820	const_iv (O_CLOEXEC)
		821	const_iv (O_NOCTTY)
		822	const_iv (O_NOFOLLOW)
		823	const_iv (O_NONBLOCK)
		824	const_iv (O_EXEC)
		825	const_iv (O_SEARCH)
		826	const_iv (O_DIRECTORY)
		827	const_iv (O_DSYNC)
		828	const_iv (O_RSYNC)
		829	const_iv (O_SYNC)
		830	const_iv (O_TTY_INIT)
		831
573	const_iv (S_IFIFO , S_IFIFO)	832	const_iv (S_IFIFO)
574	#endif	833	const_iv (S_IFCHR)
		834	const_iv (S_IFBLK)
		835	const_iv (S_IFLNK)
		836	const_iv (S_IFREG)
		837	const_iv (S_IFDIR)
		838	const_iv (S_IFWHT)
		839	const_iv (S_IFSOCK)
		840	const_iv (S_IFMT)
		841
		842	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		843	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		844	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		845	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		846	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		847	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		848
		849	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		850	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		851	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		852	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		853	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		854
		855	const_iv (ST_RDONLY)
		856	const_iv (ST_NOSUID)
		857	const_iv (ST_NODEV)
		858	const_iv (ST_NOEXEC)
		859	const_iv (ST_SYNCHRONOUS)
		860	const_iv (ST_MANDLOCK)
		861	const_iv (ST_WRITE)
		862	const_iv (ST_APPEND)
		863	const_iv (ST_IMMUTABLE)
		864	const_iv (ST_NOATIME)
		865	const_iv (ST_NODIRATIME)
		866	const_iv (ST_RELATIME)
		867
		868	const_iv (PROT_NONE)
		869	const_iv (PROT_EXEC)
		870	const_iv (PROT_READ)
		871	const_iv (PROT_WRITE)
		872
		873	/*const_iv (MAP_FIXED)*/
		874	const_iv (MAP_PRIVATE)
		875	const_iv (MAP_SHARED)
		876	const_iv (MAP_ANONYMOUS)
		877
		878	/* linuxish */
		879	const_iv (MAP_HUGETLB)
		880	const_iv (MAP_LOCKED)
		881	const_iv (MAP_NORESERVE)
		882	const_iv (MAP_POPULATE)
		883	const_iv (MAP_NONBLOCK)
		884
		885	const_eio (MCL_FUTURE)
		886	const_eio (MCL_CURRENT)
		887
		888	const_eio (MS_ASYNC)
		889	const_eio (MS_INVALIDATE)
		890	const_eio (MS_SYNC)
		891
		892	const_eio (MT_MODIFY)
		893
575	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	894	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
576	const_eio (SYNC_FILE_RANGE_WRITE)	895	const_eio (SYNC_FILE_RANGE_WRITE)
577	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	896	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		897
		898	const_eio (FALLOC_FL_KEEP_SIZE)
578		899
579	const_eio (READDIR_DENTS)	900	const_eio (READDIR_DENTS)
580	const_eio (READDIR_DIRS_FIRST)	901	const_eio (READDIR_DIRS_FIRST)
581	const_eio (READDIR_STAT_ORDER)	902	const_eio (READDIR_STAT_ORDER)
582	const_eio (READDIR_FOUND_UNKNOWN)	903	const_eio (READDIR_FOUND_UNKNOWN)
…		…
590	const_eio (DT_LNK)	911	const_eio (DT_LNK)
591	const_eio (DT_SOCK)	912	const_eio (DT_SOCK)
592	const_eio (DT_WHT)	913	const_eio (DT_WHT)
593	};	914	};
594		915
595	stash = gv_stashpv ("IO::AIO", 1);	916	aio_stash = gv_stashpv ("IO::AIO" , 1);
		917	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		918	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
596		919
597	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	920	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
598	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	921	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		922
		923	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
599		924
600	create_respipe ();	925	create_respipe ();
601		926
602	if (eio_init (want_poll, done_poll) < 0)	927	if (eio_init (want_poll, done_poll) < 0)
603	croak ("IO::AIO: unable to initialise eio library");	928	croak ("IO::AIO: unable to initialise eio library");
…		…
605	/* atfork child called in fifo order, so before eio's handler */	930	/* atfork child called in fifo order, so before eio's handler */
606	X_THREAD_ATFORK (0, 0, atfork_child);	931	X_THREAD_ATFORK (0, 0, atfork_child);
607	}	932	}
608		933
609	void	934	void
610	max_poll_reqs (int nreqs)	935	max_poll_reqs (unsigned int nreqs)
611	PROTOTYPE: $	936	PROTOTYPE: $
612	CODE:	937	CODE:
613	eio_set_max_poll_reqs (nreqs);	938	eio_set_max_poll_reqs (nreqs);
614		939
615	void	940	void
…		…
617	PROTOTYPE: $	942	PROTOTYPE: $
618	CODE:	943	CODE:
619	eio_set_max_poll_time (nseconds);	944	eio_set_max_poll_time (nseconds);
620		945
621	void	946	void
622	min_parallel (int nthreads)	947	min_parallel (unsigned int nthreads)
623	PROTOTYPE: $	948	PROTOTYPE: $
624	CODE:	949	CODE:
625	eio_set_min_parallel (nthreads);	950	eio_set_min_parallel (nthreads);
626		951
627	void	952	void
628	max_parallel (int nthreads)	953	max_parallel (unsigned int nthreads)
629	PROTOTYPE: $	954	PROTOTYPE: $
630	CODE:	955	CODE:
631	eio_set_max_parallel (nthreads);	956	eio_set_max_parallel (nthreads);
632		957
633	void	958	void
634	max_idle (int nthreads)	959	max_idle (unsigned int nthreads)
635	PROTOTYPE: $	960	PROTOTYPE: $
636	CODE:	961	CODE:
637	eio_set_max_idle (nthreads);	962	eio_set_max_idle (nthreads);
638		963
639	void	964	void
		965	idle_timeout (unsigned int seconds)
		966	PROTOTYPE: $
		967	CODE:
		968	eio_set_idle_timeout (seconds);
		969
		970	void
640	max_outstanding (int maxreqs)	971	max_outstanding (unsigned int maxreqs)
641	PROTOTYPE: $	972	PROTOTYPE: $
642	CODE:	973	CODE:
643	max_outstanding = maxreqs;	974	max_outstanding = maxreqs;
644		975
645	void	976	void
646	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	977	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
647	PROTOTYPE: $$$;$
648	PPCODE:	978	PPCODE:
649	{	979	{
650	dREQ;	980	dREQ;
651		981
652	req->type = EIO_OPEN;	982	req->type = EIO_OPEN;
…		…
658	REQ_SEND;	988	REQ_SEND;
659	}	989	}
660		990
661	void	991	void
662	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	992	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $;$
664	ALIAS:	993	ALIAS:
665	aio_fsync = EIO_FSYNC	994	aio_fsync = EIO_FSYNC
666	aio_fdatasync = EIO_FDATASYNC	995	aio_fdatasync = EIO_FDATASYNC
667	PPCODE:	996	PPCODE:
668	{	997	{
669	int fd = extract_fd (fh, 0);	998	int fd = s_fileno_croak (fh, 0);
670	dREQ;	999	dREQ;
671		1000
672	req->type = ix;	1001	req->type = ix;
673	req->sv1 = newSVsv (fh);	1002	req->sv1 = newSVsv (fh);
674	req->int1 = fd;	1003	req->int1 = fd;
675		1004
676	REQ_SEND (req);	1005	REQ_SEND (req);
677	}	1006	}
678		1007
679	void	1008	void
680	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1009	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$$;$
682	PPCODE:	1010	PPCODE:
683	{	1011	{
684	int fd = extract_fd (fh, 0);	1012	int fd = s_fileno_croak (fh, 0);
685	dREQ;	1013	dREQ;
686		1014
687	req->type = EIO_SYNC_FILE_RANGE;	1015	req->type = EIO_SYNC_FILE_RANGE;
688	req->sv1 = newSVsv (fh);	1016	req->sv1 = newSVsv (fh);
689	req->int1 = fd;	1017	req->int1 = fd;
690	req->offs = SvVAL64 (offset);	1018	req->offs = offset;
691	req->size = SvVAL64 (nbytes);	1019	req->size = nbytes;
692	req->int2 = flags;	1020	req->int2 = flags;
693		1021
694	REQ_SEND (req);	1022	REQ_SEND (req);
695	}	1023	}
696		1024
697	void	1025	void
		1026	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1027	PPCODE:
		1028	{
		1029	int fd = s_fileno_croak (fh, 0);
		1030	dREQ;
		1031
		1032	req->type = EIO_FALLOCATE;
		1033	req->sv1 = newSVsv (fh);
		1034	req->int1 = fd;
		1035	req->int2 = mode;
		1036	req->offs = offset;
		1037	req->size = len;
		1038
		1039	REQ_SEND (req);
		1040	}
		1041
		1042	void
698	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1043	aio_close (SV *fh, SV *callback=&PL_sv_undef)
699	PROTOTYPE: $;$
700	PPCODE:	1044	PPCODE:
701	{	1045	{
702	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1046	static int close_fd = -1; /* dummy fd to close fds via dup2 */
703	int fd = extract_fd (fh, 0);	1047	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1048	dREQ;
705		1049
706	if (close_pipe < 0)	1050	if (expect_false (close_fd < 0))
707	{	1051	{
708	int pipefd [2];	1052	int pipefd [2];
709		1053
		1054	if (
		1055	#ifdef _WIN32
		1056	_pipe (pipefd, 1, _O_BINARY) < 0
		1057	#else
710	if (pipe (pipefd) < 0	1058	pipe (pipefd) < 0
711	|| close (pipefd [1]) < 0
712	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1059	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1060	#endif
		1061	|| close (pipefd [1]) < 0
		1062	)
713	abort (); /*D*/	1063	abort (); /*D*/
714		1064
715	close_pipe = pipefd [0];	1065	close_fd = pipefd [0];
716	}	1066	}
717		1067
718	req->type = EIO_DUP2;	1068	req->type = EIO_DUP2;
719	req->int1 = close_pipe;	1069	req->int1 = close_fd;
720	req->sv2 = newSVsv (fh);	1070	req->sv2 = newSVsv (fh);
721	req->int2 = fd;	1071	req->int2 = fd;
722		1072
723	REQ_SEND (req);	1073	REQ_SEND (req);
724	}	1074	}
…		…
726	void	1076	void
727	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1077	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
728	ALIAS:	1078	ALIAS:
729	aio_read = EIO_READ	1079	aio_read = EIO_READ
730	aio_write = EIO_WRITE	1080	aio_write = EIO_WRITE
731	PROTOTYPE: $$$$$;$
732	PPCODE:	1081	PPCODE:
733	{	1082	{
734	STRLEN svlen;	1083	STRLEN svlen;
735	int fd = extract_fd (fh, ix == EIO_WRITE);	1084	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736	char *svptr = SvPVbyte (data, svlen);	1085	char *svptr = SvPVbyte (data, svlen);
737	UV len = SvUV (length);	1086	UV len = SvUV (length);
738		1087
739	if (dataoffset < 0)	1088	if (dataoffset < 0)
740	dataoffset += svlen;	1089	dataoffset += svlen;
…		…
777	}	1126	}
778	}	1127	}
779		1128
780	void	1129	void
781	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1130	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
782	PROTOTYPE: $$;$	1131	ALIAS:
		1132	aio_readlink = EIO_READLINK
		1133	aio_realpath = EIO_REALPATH
783	PPCODE:	1134	PPCODE:
784	{	1135	{
785	SV *data;
786	dREQ;	1136	dREQ;
787		1137
788	req->type = EIO_READLINK;	1138	req->type = ix;
789	req->sv1 = newSVsv (path);	1139	req->sv1 = newSVsv (path);
790	req->ptr1 = SvPVbyte_nolen (req->sv1);	1140	req->ptr1 = SvPVbyte_nolen (req->sv1);
791		1141
792	REQ_SEND;	1142	REQ_SEND;
793	}	1143	}
794		1144
795	void	1145	void
796	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1146	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
797	PROTOTYPE: $$$$;$
798	PPCODE:	1147	PPCODE:
799	{	1148	{
800	int ifd = extract_fd (in_fh , 0);	1149	int ifd = s_fileno_croak (in_fh , 0);
801	int ofd = extract_fd (out_fh, 0);	1150	int ofd = s_fileno_croak (out_fh, 1);
802	dREQ;	1151	dREQ;
803		1152
804	req->type = EIO_SENDFILE;	1153	req->type = EIO_SENDFILE;
805	req->sv1 = newSVsv (out_fh);	1154	req->sv1 = newSVsv (out_fh);
806	req->int1 = ofd;	1155	req->int1 = ofd;
807	req->sv2 = newSVsv (in_fh);	1156	req->sv2 = newSVsv (in_fh);
808	req->int2 = ifd;	1157	req->int2 = ifd;
809	req->offs = SvVAL64 (in_offset);	1158	req->offs = in_offset;
810	req->size = length;	1159	req->size = length;
811		1160
812	REQ_SEND;	1161	REQ_SEND;
813	}	1162	}
814		1163
815	void	1164	void
816	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1165	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1166	PPCODE:
819	{	1167	{
820	int fd = extract_fd (fh, 0);	1168	int fd = s_fileno_croak (fh, 0);
821	dREQ;	1169	dREQ;
822		1170
823	req->type = EIO_READAHEAD;	1171	req->type = EIO_READAHEAD;
824	req->sv1 = newSVsv (fh);	1172	req->sv1 = newSVsv (fh);
825	req->int1 = fd;	1173	req->int1 = fd;
826	req->offs = SvVAL64 (offset);	1174	req->offs = offset;
827	req->size = length;	1175	req->size = length;
828		1176
829	REQ_SEND;	1177	REQ_SEND;
830	}	1178	}
831		1179
832	void	1180	void
833	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1181	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
834	ALIAS:	1182	ALIAS:
835	aio_stat = EIO_STAT	1183	aio_stat = EIO_STAT
836	aio_lstat = EIO_LSTAT	1184	aio_lstat = EIO_LSTAT
		1185	aio_statvfs = EIO_STATVFS
837	PPCODE:	1186	PPCODE:
838	{	1187	{
839	dREQ;	1188	dREQ;
840		1189
841	req->sv1 = newSVsv (fh_or_path);	1190	req->sv1 = newSVsv (fh_or_path);
…		…
845	req->type = ix;	1194	req->type = ix;
846	req->ptr1 = SvPVbyte_nolen (req->sv1);	1195	req->ptr1 = SvPVbyte_nolen (req->sv1);
847	}	1196	}
848	else	1197	else
849	{	1198	{
850	req->type = EIO_FSTAT;	1199	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
851	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1200	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852	}	1201	}
853		1202
854	REQ_SEND;	1203	REQ_SEND;
855	}	1204	}
		1205
		1206	UV
		1207	major (UV dev)
		1208	ALIAS:
		1209	minor = 1
		1210	CODE:
		1211	RETVAL = ix ? major (dev) : minor (dev);
		1212	OUTPUT:
		1213	RETVAL
		1214
		1215	UV
		1216	makedev (UV maj, UV min)
		1217	CODE:
		1218	RETVAL = makedev (maj, min);
		1219	OUTPUT:
		1220	RETVAL
856		1221
857	void	1222	void
858	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1223	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
859	PPCODE:	1224	PPCODE:
860	{	1225	{
…		…
1018		1383
1019	REQ_SEND;	1384	REQ_SEND;
1020	}	1385	}
1021		1386
1022	void	1387	void
		1388	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1389	ALIAS:
		1390	aio_mtouch = EIO_MTOUCH
		1391	aio_msync = EIO_MSYNC
		1392	PPCODE:
		1393	{
		1394	STRLEN svlen;
		1395	char *svptr = SvPVbyte (data, svlen);
		1396	UV len = SvUV (length);
		1397
		1398	if (offset < 0)
		1399	offset += svlen;
		1400
		1401	if (offset < 0 || offset > svlen)
		1402	croak ("offset outside of scalar");
		1403
		1404	if (!SvOK (length) || len + offset > svlen)
		1405	len = svlen - offset;
		1406
		1407	{
		1408	dREQ;
		1409
		1410	req->type = ix;
		1411	req->sv2 = SvREFCNT_inc (data);
		1412	req->ptr2 = (char *)svptr + offset;
		1413	req->size = len;
		1414	req->int1 = flags;
		1415
		1416	REQ_SEND;
		1417	}
		1418	}
		1419
		1420	void
		1421	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1422	PPCODE:
		1423	{
		1424	STRLEN svlen;
		1425	char *svptr = SvPVbyte (data, svlen);
		1426	UV len = SvUV (length);
		1427
		1428	if (offset < 0)
		1429	offset += svlen;
		1430
		1431	if (offset < 0 || offset > svlen)
		1432	croak ("offset outside of scalar");
		1433
		1434	if (!SvOK (length) || len + offset > svlen)
		1435	len = svlen - offset;
		1436
		1437	{
		1438	dREQ;
		1439
		1440	req->type = EIO_MLOCK;
		1441	req->sv2 = SvREFCNT_inc (data);
		1442	req->ptr2 = (char *)svptr + offset;
		1443	req->size = len;
		1444
		1445	REQ_SEND;
		1446	}
		1447	}
		1448
		1449	void
		1450	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1451	PPCODE:
		1452	{
		1453	dREQ;
		1454
		1455	req->type = EIO_MLOCKALL;
		1456	req->int1 = flags;
		1457
		1458	REQ_SEND;
		1459	}
		1460
		1461	void
1023	aio_busy (double delay, SV *callback=&PL_sv_undef)	1462	aio_busy (double delay, SV *callback=&PL_sv_undef)
1024	PPCODE:	1463	PPCODE:
1025	{	1464	{
1026	dREQ;	1465	dREQ;
1027		1466
…		…
1031	REQ_SEND;	1470	REQ_SEND;
1032	}	1471	}
1033		1472
1034	void	1473	void
1035	aio_group (SV *callback=&PL_sv_undef)	1474	aio_group (SV *callback=&PL_sv_undef)
1036	PROTOTYPE: ;$
1037	PPCODE:	1475	PPCODE:
1038	{	1476	{
1039	dREQ;	1477	dREQ;
1040		1478
1041	req->type = EIO_GROUP;	1479	req->type = EIO_GROUP;
1042		1480
1043	req_submit (req);	1481	req_submit (req);
1044	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1482	XPUSHs (req_sv (req, aio_grp_stash));
1045	}	1483	}
1046		1484
1047	void	1485	void
1048	aio_nop (SV *callback=&PL_sv_undef)	1486	aio_nop (SV *callback=&PL_sv_undef)
1049	ALIAS:	1487	ALIAS:
…		…
1058	REQ_SEND;	1496	REQ_SEND;
1059	}	1497	}
1060		1498
1061	int	1499	int
1062	aioreq_pri (int pri = 0)	1500	aioreq_pri (int pri = 0)
1063	PROTOTYPE: ;$
1064	CODE:	1501	CODE:
1065	RETVAL = next_pri;	1502	RETVAL = next_pri;
1066	if (items > 0)	1503	if (items > 0)
1067	{	1504	{
1068	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1505	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1080	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1517	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081	next_pri = nice;	1518	next_pri = nice;
1082		1519
1083	void	1520	void
1084	flush ()	1521	flush ()
1085	PROTOTYPE:
1086	CODE:	1522	CODE:
1087	while (eio_nreqs ())	1523	while (eio_nreqs ())
1088	{	1524	{
1089	poll_wait ();	1525	poll_wait ();
1090	poll_cb ();	1526	poll_cb ();
1091	}	1527	}
1092		1528
1093	int	1529	int
1094	poll()	1530	poll ()
1095	PROTOTYPE:
1096	CODE:	1531	CODE:
1097	poll_wait ();	1532	poll_wait ();
1098	RETVAL = poll_cb ();	1533	RETVAL = poll_cb ();
1099	OUTPUT:	1534	OUTPUT:
1100	RETVAL	1535	RETVAL
1101		1536
1102	int	1537	int
1103	poll_fileno()	1538	poll_fileno ()
1104	PROTOTYPE:
1105	CODE:	1539	CODE:
1106	RETVAL = respipe [0];	1540	RETVAL = s_epipe_fd (&respipe);
1107	OUTPUT:	1541	OUTPUT:
1108	RETVAL	1542	RETVAL
1109		1543
1110	int	1544	int
1111	poll_cb(...)	1545	poll_cb (...)
1112	PROTOTYPE:	1546	PROTOTYPE:
1113	CODE:	1547	CODE:
1114	RETVAL = poll_cb ();	1548	RETVAL = poll_cb ();
1115	OUTPUT:	1549	OUTPUT:
1116	RETVAL	1550	RETVAL
1117		1551
1118	void	1552	void
1119	poll_wait()	1553	poll_wait ()
1120	PROTOTYPE:
1121	CODE:	1554	CODE:
1122	poll_wait ();	1555	poll_wait ();
1123		1556
1124	int	1557	int
1125	nreqs()	1558	nreqs ()
1126	PROTOTYPE:
1127	CODE:	1559	CODE:
1128	RETVAL = eio_nreqs ();	1560	RETVAL = eio_nreqs ();
1129	OUTPUT:	1561	OUTPUT:
1130	RETVAL	1562	RETVAL
1131		1563
1132	int	1564	int
1133	nready()	1565	nready ()
1134	PROTOTYPE:
1135	CODE:	1566	CODE:
1136	RETVAL = eio_nready ();	1567	RETVAL = eio_nready ();
1137	OUTPUT:	1568	OUTPUT:
1138	RETVAL	1569	RETVAL
1139		1570
1140	int	1571	int
1141	npending()	1572	npending ()
1142	PROTOTYPE:
1143	CODE:	1573	CODE:
1144	RETVAL = eio_npending ();	1574	RETVAL = eio_npending ();
1145	OUTPUT:	1575	OUTPUT:
1146	RETVAL	1576	RETVAL
1147		1577
1148	int	1578	int
1149	nthreads()	1579	nthreads ()
1150	PROTOTYPE:
1151	CODE:	1580	CODE:
1152	RETVAL = eio_nthreads ();	1581	RETVAL = eio_nthreads ();
1153	OUTPUT:	1582	OUTPUT:
1154	RETVAL	1583	RETVAL
1155		1584
		1585	int
		1586	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1587	CODE:
		1588	RETVAL = posix_fadvise (fh, offset, length, advice);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	ssize_t
		1593	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1594	CODE:
		1595	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1596	OUTPUT:
		1597	RETVAL
		1598
		1599	void
		1600	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1601	PPCODE:
		1602	sv_unmagic (scalar, MMAP_MAGIC);
		1603	{
		1604	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1605	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1606	if (addr == (void *)-1)
		1607	XSRETURN_NO;
		1608
		1609	sv_force_normal (scalar);
		1610
		1611	/* we store the length in mg_obj, as namlen is I32 :/ */
		1612	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1613	->mg_obj = (SV *)length;
		1614
		1615	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1616
		1617	if (!(prot & PROT_WRITE))
		1618	SvREADONLY_on (scalar);
		1619
		1620	if (SvLEN (scalar))
		1621	Safefree (SvPVX (scalar));
		1622
		1623	SvPVX (scalar) = (char *)addr;
		1624	SvCUR_set (scalar, length);
		1625	SvLEN_set (scalar, 0);
		1626	SvPOK_only (scalar);
		1627
		1628	XSRETURN_YES;
		1629	}
		1630
		1631	void
		1632	munmap (SV *scalar)
		1633	CODE:
		1634	sv_unmagic (scalar, MMAP_MAGIC);
		1635
		1636	int
		1637	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1638	ALIAS:
		1639	mprotect = 1
		1640	CODE:
		1641	{
		1642	STRLEN svlen;
		1643	void *addr = SvPVbyte (scalar, svlen);
		1644	size_t len = SvUV (length);
		1645
		1646	if (offset < 0)
		1647	offset += svlen;
		1648
		1649	if (offset < 0 || offset > svlen)
		1650	croak ("offset outside of scalar");
		1651
		1652	if (!SvOK (length) || len + offset > svlen)
		1653	len = svlen - offset;
		1654
		1655	addr = (void *)(((intptr_t)addr) + offset);
		1656	eio_page_align (&addr, &len);
		1657
		1658	switch (ix)
		1659	{
		1660	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1661	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1662	}
		1663	}
		1664	OUTPUT:
		1665	RETVAL
		1666
		1667	int
		1668	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1669	CODE:
		1670	{
		1671	STRLEN svlen;
		1672	void *addr = SvPVbyte (scalar, svlen);
		1673	size_t len = SvUV (length);
		1674
		1675	if (offset < 0)
		1676	offset += svlen;
		1677
		1678	if (offset < 0 || offset > svlen)
		1679	croak ("offset outside of scalar");
		1680
		1681	if (!SvOK (length) || len + offset > svlen)
		1682	len = svlen - offset;
		1683
		1684	addr = (void *)(((intptr_t)addr) + offset);
		1685	eio_page_align (&addr, &len);
		1686	#if _POSIX_MEMLOCK_RANGE
		1687	RETVAL = munlock (addr, len);
		1688	#else
		1689	RETVAL = ((errno = ENOSYS), -1);
		1690	#endif
		1691	}
		1692	OUTPUT:
		1693	RETVAL
		1694
		1695	int
		1696	munlockall ()
		1697	CODE:
		1698	#if _POSIX_MEMLOCK
		1699	munlockall ();
		1700	#else
		1701	RETVAL = -1;
		1702	errno = ENOSYS;
		1703	#endif
		1704	OUTPUT:
		1705	RETVAL
		1706
1156	void _on_next_submit (SV *cb)	1707	void _on_next_submit (SV *cb)
1157	CODE:	1708	CODE:
1158	SvREFCNT_dec (on_next_submit);	1709	SvREFCNT_dec (on_next_submit);
1159	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1710	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160		1711
…		…
1174	if (GIMME_V != G_VOID)	1725	if (GIMME_V != G_VOID)
1175	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1726	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176		1727
1177	if (items > 1)	1728	if (items > 1)
1178	{	1729	{
1179	SV *cb_cv = get_cb (callback);	1730	SV *cb_cv =get_cb (callback);
1180		1731
1181	SvREFCNT_dec (req->callback);	1732	SvREFCNT_dec (req->callback);
1182	req->callback = SvREFCNT_inc (cb_cv);	1733	req->callback = SvREFCNT_inc (cb_cv);
1183	}	1734	}
1184	}	1735	}

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