[ViewVC] Diff of: cvs/libeio/eio.h

Comparing libeio/eio.h (file contents):
Revision 1.2 by root, Sat May 10 23:33:40 2008 UTC vs.
Revision 1.30 by root, Sun Jun 5 19:58:37 2011 UTC

…		…
		1	/*
		2	* libeio API header
		3	*
		4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libeio@schmorp.de>
		5	* All rights reserved.
		6	*
		7	* Redistribution and use in source and binary forms, with or without modifica-
		8	* tion, are permitted provided that the following conditions are met:
		9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
		27	*
		28	* Alternatively, the contents of this file may be used under the terms of
		29	* the GNU General Public License ("GPL") version 2 or any later version,
		30	* in which case the provisions of the GPL are applicable instead of
		31	* the above. If you wish to allow the use of your version of this file
		32	* only under the terms of the GPL and not to allow others to use your
		33	* version of this file under the BSD license, indicate your decision
		34	* by deleting the provisions above and replace them with the notice
		35	* and other provisions required by the GPL. If you do not delete the
		36	* provisions above, a recipient may use your version of this file under
		37	* either the BSD or the GPL.
		38	*/
		39
1	#ifndef EIO_H_	40	#ifndef EIO_H_
2	#define EIO_H_	41	#define EIO_H_
3		42
		43	#ifdef __cplusplus
		44	extern "C" {
		45	#endif
		46
4	#include <stddef.h>	47	#include <stddef.h>
5	#include <stdlib.h>	48	#include <sys/types.h>
6		49
7	typedef struct eio_req eio_req;	50	typedef struct eio_req eio_req;
		51	typedef struct eio_dirent eio_dirent;
8		52
9	typedef int (eio_cb)(eio_req req);	53	typedef int (eio_cb)(eio_req req);
10		54
11	#ifndef EIO_COMMON	55	#ifndef EIO_REQ_MEMBERS
12	# define EIO_COMMON \	56	# define EIO_REQ_MEMBERS
13	eio_cb finish; \
14	void (destroy)(eio_req req);\
15	void *data
16	#endif	57	#endif
17		58
		59	#ifndef EIO_STRUCT_STAT
		60	# define EIO_STRUCT_STAT struct stat
		61	#endif
		62
		63	#ifndef EIO_STRUCT_STATVFS
		64	# define EIO_STRUCT_STATVFS struct statvfs
		65	#endif
		66
		67	/* for readdir */
		68
		69	/* eio_readdir flags */
18	enum {	70	enum
		71	{
		72	EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */
		73	EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */
		74	EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */
		75	EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when _ARRAY was set and any TYPE=UNKNOWN's were found /
		76
		77	EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */
		78	EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */
		79	};
		80
		81	/* using "typical" values in the hope that the compiler will do something sensible */
		82	enum eio_dtype
		83	{
		84	EIO_DT_UNKNOWN = 0,
		85	EIO_DT_FIFO = 1,
		86	EIO_DT_CHR = 2,
		87	EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */
		88	EIO_DT_DIR = 4,
		89	EIO_DT_NAM = 5, /* xenix special named file */
		90	EIO_DT_BLK = 6,
		91	EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */
		92	EIO_DT_REG = 8,
		93	EIO_DT_NWK = 9, /* HP-UX network special */
		94	EIO_DT_CMP = 9, /* VxFS compressed */
		95	EIO_DT_LNK = 10,
		96	/* DT_SHAD = 11,*/
		97	EIO_DT_SOCK = 12,
		98	EIO_DT_DOOR = 13, /* solaris door */
		99	EIO_DT_WHT = 14,
		100	EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
		101	};
		102
		103	struct eio_dirent
		104	{
		105	int nameofs; /* offset of null-terminated name string in (char )req->ptr2 /
		106	unsigned short namelen; /* size of filename without trailing 0 */
		107	unsigned char type; /* one of EIO_DT_* */
		108	signed char score; /* internal use */
		109	ino_t inode; /* the inode number, if available, otherwise unspecified */
		110	};
		111
		112	/* eio_msync flags */
		113	enum
		114	{
		115	EIO_MS_ASYNC = 1,
		116	EIO_MS_INVALIDATE = 2,
		117	EIO_MS_SYNC = 4
		118	};
		119
		120	/* eio_mtouch flags */
		121
		122	enum
		123	{
		124	EIO_MT_MODIFY = 1
		125	};
		126
		127	/* eio_sync_file_range flags */
		128
		129	enum
		130	{
		131	EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
		132	EIO_SYNC_FILE_RANGE_WRITE = 2,
		133	EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
		134	};
		135
		136	typedef double eio_tstamp; /* feel free to use double in your code directly */
		137
		138	/* the eio request structure */
		139
		140	enum
		141	{
19	EIO_QUIT,	142	EIO_CUSTOM,
20	EIO_OPEN, EIO_CLOSE, EIO_DUP2,	143	EIO_OPEN, EIO_CLOSE, EIO_DUP2,
21	EIO_READ, EIO_WRITE,	144	EIO_READ, EIO_WRITE,
22	EIO_READAHEAD, EIO_SENDFILE,	145	EIO_READAHEAD, EIO_SENDFILE,
23	EIO_STAT, EIO_LSTAT, EIO_FSTAT,	146	EIO_STAT, EIO_LSTAT, EIO_FSTAT,
		147	EIO_STATVFS, EIO_FSTATVFS,
24	EIO_TRUNCATE, EIO_FTRUNCATE,	148	EIO_TRUNCATE, EIO_FTRUNCATE,
25	EIO_UTIME, EIO_FUTIME,	149	EIO_UTIME, EIO_FUTIME,
26	EIO_CHMOD, EIO_FCHMOD,	150	EIO_CHMOD, EIO_FCHMOD,
27	EIO_CHOWN, EIO_FCHOWN,	151	EIO_CHOWN, EIO_FCHOWN,
28	EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,	152	EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,
		153	EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE,
		154	EIO_MLOCK, EIO_MLOCKALL,
29	EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,	155	EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
30	EIO_MKNOD, EIO_READDIR,	156	EIO_MKNOD, EIO_READDIR,
31	EIO_LINK, EIO_SYMLINK, EIO_READLINK,	157	EIO_LINK, EIO_SYMLINK, EIO_READLINK,
32	EIO_GROUP, EIO_NOP,	158	EIO_GROUP, EIO_NOP,
33	EIO_BUSY,	159	EIO_BUSY
34	};	160	};
35		161
36	typedef double eio_tstamp; /* feel free to use double in your code directly */	162	/* mlockall constants */
37
38	/* eio request structure */
39	/* this structure is mostly read-only */
40	struct eio_req
41	{
42	eio_req volatile next; / private */
43
44	ssize_t result; /* result of syscall, e.g. result = read (... */
45	off_t offs; /* read, write, truncate, readahead: file offset; mknod: dev_t */
46	size_t size; /* read, write, readahead, sendfile: length */
47	void ptr1; / all applicable requests: pathname, old name */
48	void ptr2; / all applicable requests: new name or memory buffer */
49	eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
50	eio_tstamp nv2; /* utime, futime: mtime */
51
52	int type; /* EIO_xxx constant */
53	int int1; /* all applicable requests: file descriptor; sendfile: output fd; open: flags */
54	long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode */
55	long int3; /* chown, fchown: gid */
56	int errorno; /* errno value on syscall return */
57
58	unsigned char flags; /* private */
59	unsigned char pri; /* the priority */
60
61	void (feed)(eio_req req);
62
63	EIO_COMMON;
64
65	eio_req grp, grp_prev, grp_next, grp_first; /* private */
66	};
67
68	enum {	163	enum
69	EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */	164	{
70	EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */	165	EIO_MCL_CURRENT = 1,
		166	EIO_MCL_FUTURE = 2,
71	};	167	};
		168
		169	/* request priorities */
72		170
73	enum {	171	enum {
74	EIO_PRI_MIN = -4,	172	EIO_PRI_MIN = -4,
75	EIO_PRI_MAX = 4,	173	EIO_PRI_MAX = 4,
76
77	EIO_DEFAULT_PRI = 0,	174	EIO_PRI_DEFAULT = 0,
78	EIO_PRI_BIAS = -EIO_PRI_MIN,
79	EIO_NUM_PRI = EIO_PRI_MAX + EIO_PRI_BIAS + 1,
80	};	175	};
		176
		177	/* eio request structure */
		178	/* this structure is mostly read-only */
		179	/* when initialising it, all members must be zero-initialised */
		180	struct eio_req
		181	{
		182	eio_req volatile next; / private ETP */
		183
		184	ssize_t result; /* result of syscall, e.g. result = read (... */
		185	off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset, mknod: dev_t */
		186	size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range: length */
		187	void ptr1; / all applicable requests: pathname, old name; readdir: optional eio_dirents */
		188	void ptr2; / all applicable requests: new name or memory buffer; readdir: name strings */
		189	eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
		190	eio_tstamp nv2; /* utime, futime: mtime */
		191
		192	int type; /* EIO_xxx constant ETP */
		193	int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
		194	long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */
		195	long int3; /* chown, fchown: gid */
		196	int errorno; /* errno value on syscall return */
		197
		198	unsigned char flags; /* private */
		199	signed char pri; /* the priority */
		200
		201	void *data;
		202	eio_cb finish;
		203	void (destroy)(eio_req req); /* called when request no longer needed */
		204	void (feed)(eio_req req); /* only used for group requests */
		205
		206	EIO_REQ_MEMBERS
		207
		208	eio_req grp, grp_prev, grp_next, grp_first; /* private */
		209	};
		210
		211	/* _private_ request flags */
		212	enum {
		213	EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */
		214	EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */
		215	EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */
		216	EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */
		217	};
		218
		219	/* undocumented/unsupported/private helper */
		220	/void eio_page_align (void addr, size_t length);*/
81		221
82	/* returns < 0 on error, errno set	222	/* returns < 0 on error, errno set
83	* need_poll, if non-zero, will be called when results are available	223	* need_poll, if non-zero, will be called when results are available
84	* and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself).	224	* and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself).
85	* done_poll is called when the need to poll is gone.	225	* done_poll is called when the need to poll is gone.
92		232
93	/* stop polling if poll took longer than duration seconds */	233	/* stop polling if poll took longer than duration seconds */
94	void eio_set_max_poll_time (eio_tstamp nseconds);	234	void eio_set_max_poll_time (eio_tstamp nseconds);
95	/* do not handle more then count requests in one call to eio_poll_cb */	235	/* do not handle more then count requests in one call to eio_poll_cb */
96	void eio_set_max_poll_reqs (unsigned int nreqs);	236	void eio_set_max_poll_reqs (unsigned int nreqs);
97	/* when != 0, then eio_submit blocks as long as nready > count */
98	void eio_set_max_outstanding (unsigned int maxreqs);
99	/* set maxinum number of idle threads */
100	void eio_set_max_idle (unsigned int nthreads);
101		237
102	/* set minimum required number	238	/* set minimum required number
103	* maximum wanted number	239	* maximum wanted number
104	* or maximum idle number of threads */	240	* or maximum idle number of threads */
105	void eio_set_min_parallel (unsigned int nthreads);	241	void eio_set_min_parallel (unsigned int nthreads);
106	void eio_set_max_parallel (unsigned int nthreads);	242	void eio_set_max_parallel (unsigned int nthreads);
107	void eio_set_max_idle (unsigned int nthreads);	243	void eio_set_max_idle (unsigned int nthreads);
		244	void eio_set_idle_timeout (unsigned int seconds);
108		245
109	unsigned int eio_nreqs (void); /* number of requests in-flight */	246	unsigned int eio_nreqs (void); /* number of requests in-flight */
110	unsigned int eio_nready (void); /* number of not-yet handled requests */	247	unsigned int eio_nready (void); /* number of not-yet handled requests */
111	unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */	248	unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */
112	unsigned int eio_nthreads (void); /* number of worker threads in use currently */	249	unsigned int eio_nthreads (void); /* number of worker threads in use currently */
113		250
114	/*****************************************************************************/	251	/*****************************************************************************/
115	/* high-level request API */	252	/* convinience wrappers */
116		253
117	eio_req *eio_fsync (int fd, eio_cb cb);	254	#ifndef EIO_NO_WRAPPERS
118	eio_req *eio_fdatasync (int fd, eio_cb cb);	255	eio_req eio_nop (int pri, eio_cb cb, void data); /* does nothing except go through the whole process */
119	eio_req *eio_dupclose (int fd, eio_cb cb);
120	eio_req *eio_readahead (int fd, off_t offset, size_t length, eio_cb cb);
121	eio_req eio_read (int fd, off_t offs, size_t length, char data, eio_cb cb);
122	eio_req eio_write (int fd, off_t offs, size_t length, char data, eio_cb cb);
123	eio_req eio_fstat (int fd, eio_cb cb); / stat buffer=ptr2 allocates dynamically */
124	eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, eio_cb cb);
125	eio_req *eio_ftruncate (int fd, off_t offset, eio_cb cb);
126	eio_req *eio_fchmod (int fd, mode_t mode, eio_cb cb);
127	eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, eio_cb cb);
128	eio_req *eio_dup2 (int fd, int fd2, eio_cb cb);
129	eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, eio_cb cb);
130	eio_req eio_open (const char path, int flags, mode_t mode, eio_cb cb);
131	eio_req eio_readlink (const char path, eio_cb cb); /* result=ptr2 allocated dynamically */
132	eio_req eio_stat (const char path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */
133	eio_req eio_lstat (const char path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */
134	eio_req eio_utime (const char path, eio_tstamp atime, eio_tstamp mtime, eio_cb cb);
135	eio_req eio_truncate (const char path, off_t offset, eio_cb cb);
136	eio_req eio_chmod (const char path, mode_t mode, eio_cb cb);
137	eio_req eio_mkdir (const char path, mode_t mode, eio_cb cb);
138	eio_req eio_chown (const char path, uid_t uid, gid_t gid, eio_cb cb);
139	eio_req eio_unlink (const char path, eio_cb cb);
140	eio_req eio_rmdir (const char path, eio_cb cb);
141	eio_req eio_readdir (const char path, eio_cb cb); /* result=ptr2 allocated dynamically */
142	eio_req eio_mknod (const char path, mode_t mode, dev_t dev, eio_cb cb);
143	eio_req eio_busy (eio_tstamp delay, eio_cb cb); / ties a thread for this long, simulating busyness */	256	eio_req eio_busy (eio_tstamp delay, int pri, eio_cb cb, void data); /* ties a thread for this long, simulating busyness */
144	eio_req eio_nop (eio_cb cb); / does nothing except go through the whole process */	257	eio_req eio_sync (int pri, eio_cb cb, void data);
		258	eio_req eio_fsync (int fd, int pri, eio_cb cb, void data);
		259	eio_req eio_fdatasync (int fd, int pri, eio_cb cb, void data);
		260	eio_req eio_msync (void addr, size_t length, int flags, int pri, eio_cb cb, void *data);
		261	eio_req eio_mtouch (void addr, size_t length, int flags, int pri, eio_cb cb, void *data);
		262	eio_req eio_mlock (void addr, size_t length, int pri, eio_cb cb, void *data);
		263	eio_req eio_mlockall (int flags, int pri, eio_cb cb, void data);
		264	eio_req eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void data);
		265	eio_req eio_close (int fd, int pri, eio_cb cb, void data);
		266	eio_req eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void data);
		267	eio_req eio_read (int fd, void buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
		268	eio_req eio_write (int fd, void buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
		269	eio_req eio_fstat (int fd, int pri, eio_cb cb, void data); /* stat buffer=ptr2 allocated dynamically */
		270	eio_req eio_fstatvfs (int fd, int pri, eio_cb cb, void data); /* stat buffer=ptr2 allocated dynamically */
		271	eio_req eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void data);
		272	eio_req eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void data);
		273	eio_req eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void data);
		274	eio_req eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void data);
		275	eio_req eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void data);
		276	eio_req eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void data);
		277	eio_req eio_open (const char path, int flags, mode_t mode, int pri, eio_cb cb, void *data);
		278	eio_req eio_utime (const char path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
		279	eio_req eio_truncate (const char path, off_t offset, int pri, eio_cb cb, void *data);
		280	eio_req eio_chown (const char path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data);
		281	eio_req eio_chmod (const char path, mode_t mode, int pri, eio_cb cb, void *data);
		282	eio_req eio_mkdir (const char path, mode_t mode, int pri, eio_cb cb, void *data);
		283	eio_req eio_readdir (const char path, int flags, int pri, eio_cb cb, void data); / result=ptr2 allocated dynamically */
		284	eio_req eio_rmdir (const char path, int pri, eio_cb cb, void *data);
		285	eio_req eio_unlink (const char path, int pri, eio_cb cb, void *data);
		286	eio_req eio_readlink (const char path, int pri, eio_cb cb, void data); / result=ptr2 allocated dynamically */
		287	eio_req eio_stat (const char path, int pri, eio_cb cb, void data); / stat buffer=ptr2 allocated dynamically */
		288	eio_req eio_lstat (const char path, int pri, eio_cb cb, void data); / stat buffer=ptr2 allocated dynamically */
		289	eio_req eio_statvfs (const char path, int pri, eio_cb cb, void data); / stat buffer=ptr2 allocated dynamically */
		290	eio_req eio_mknod (const char path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data);
		291	eio_req eio_link (const char path, const char new_path, int pri, eio_cb cb, void data);
		292	eio_req eio_symlink (const char path, const char new_path, int pri, eio_cb cb, void data);
		293	eio_req eio_rename (const char path, const char new_path, int pri, eio_cb cb, void data);
		294	eio_req eio_custom (eio_cb execute, int pri, eio_cb cb, void data);
		295	#endif
145		296
		297	/*****************************************************************************/
146	/* for groups */	298	/* groups */
		299
147	eio_req *eio_grp (eio_cb cb);	300	eio_req eio_grp (eio_cb cb, void data);
148	void eio_grp_feed (eio_req grp, void (feed)(eio_req *req), int limit);	301	void eio_grp_feed (eio_req grp, void (feed)(eio_req *req), int limit);
149	void eio_grp_limit (eio_req *grp, int limit);	302	void eio_grp_limit (eio_req *grp, int limit);
150	void eio_grp_add (eio_req grp, eio_req req);	303	void eio_grp_add (eio_req grp, eio_req req);
151	void eio_grp_cancel (eio_req grp); / cancels all sub requests but not the group */	304	void eio_grp_cancel (eio_req grp); / cancels all sub requests but not the group */
152		305
153	/*****************************************************************************/	306	/*****************************************************************************/
154	/* low-level request API */	307	/* request api */
155
156	/* must be used to initialise eio_req's */
157	#define EIO_INIT(req,prio,finish_cb, destroy_cb) \
158	memset ((req), 0, sizeof (eio_req)); \
159	(req)->pri = (prio) + EIO_PRI_BIAS; \
160	(req)->finish = (finish_cb); \
161	(req)->destroy = (destroy_cb)
162		308
163	/* true if the request was cancelled, useful in the invoke callback */	309	/* true if the request was cancelled, useful in the invoke callback */
164	#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED)	310	#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED)
		311
		312	#define EIO_RESULT(req) ((req)->result)
		313	/* returns a pointer to the result buffer allocated by eio */
		314	#define EIO_BUF(req) ((req)->ptr2)
		315	#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req))
		316	#define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req))
		317	#define EIO_PATH(req) ((char *)(req)->ptr1)
165		318
166	/* submit a request for execution */	319	/* submit a request for execution */
167	void eio_submit (eio_req *req);	320	void eio_submit (eio_req *req);
168	/* cancel a request as soon fast as possible */	321	/* cancel a request as soon fast as possible, if possible */
169	void eio_cancel (eio_req *req);	322	void eio_cancel (eio_req *req);
170	/* destroy a request that has never been submitted */	323	/* destroy a request that has never been submitted */
171	void eio_destroy (eio_req *req);	324	void eio_destroy (eio_req *req);
172		325
173	#endif	326	/*****************************************************************************/
		327	/* convinience functions */
174		328
		329	ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
		330
		331	#ifdef __cplusplus
		332	}
		333	#endif
		334
		335	#endif
		336

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Comparing libeio/eio.h (file contents): Revision 1.2 by root, Sat May 10 23:33:40 2008 UTC vs. Revision 1.30 by root, Sun Jun 5 19:58:37 2011 UTC

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Comparing libeio/eio.h (file contents):
Revision 1.2 by root, Sat May 10 23:33:40 2008 UTC vs.
Revision 1.30 by root, Sun Jun 5 19:58:37 2011 UTC