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/cvs/libeio/eio.h
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Comparing libeio/eio.h (file contents):
Revision 1.13 by root, Sat May 17 12:26:57 2008 UTC vs.
Revision 1.16 by root, Sun Sep 21 00:23:45 2008 UTC

… …
38 */ 38 */
39 39
40#ifndef EIO_H_ 40#ifndef EIO_H_
41#define EIO_H_ 41#define EIO_H_
42 42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
43#include <stddef.h> 47#include <stddef.h>
44#include <sys/types.h> 48#include <sys/types.h>
45 49
46typedef struct eio_req eio_req; 50typedef struct eio_req eio_req;
47 51
… …
54#ifndef EIO_STRUCT_STAT 58#ifndef EIO_STRUCT_STAT
55# define EIO_STRUCT_STAT struct stat 59# define EIO_STRUCT_STAT struct stat
56#endif 60#endif
57 61
58enum { 62enum {
63 EIO_CUSTOM,
59 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 64 EIO_OPEN, EIO_CLOSE, EIO_DUP2,
60 EIO_READ, EIO_WRITE, 65 EIO_READ, EIO_WRITE,
61 EIO_READAHEAD, EIO_SENDFILE, 66 EIO_READAHEAD, EIO_SENDFILE,
62 EIO_STAT, EIO_LSTAT, EIO_FSTAT, 67 EIO_STAT, EIO_LSTAT, EIO_FSTAT,
63 EIO_TRUNCATE, EIO_FTRUNCATE, 68 EIO_TRUNCATE, EIO_FTRUNCATE,
64 EIO_UTIME, EIO_FUTIME, 69 EIO_UTIME, EIO_FUTIME,
65 EIO_CHMOD, EIO_FCHMOD, 70 EIO_CHMOD, EIO_FCHMOD,
66 EIO_CHOWN, EIO_FCHOWN, 71 EIO_CHOWN, EIO_FCHOWN,
67 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, 72 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_MSYNC, EIO_MTOUCH,
68 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, 73 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
69 EIO_MKNOD, EIO_READDIR, 74 EIO_MKNOD, EIO_READDIR,
70 EIO_LINK, EIO_SYMLINK, EIO_READLINK, 75 EIO_LINK, EIO_SYMLINK, EIO_READLINK,
71 EIO_GROUP, EIO_NOP, 76 EIO_GROUP, EIO_NOP,
72 EIO_BUSY, EIO_CUSTOM 77 EIO_BUSY,
73}; 78};
74 79
75typedef double eio_tstamp; /* feel free to use double in your code directly */ 80typedef double eio_tstamp; /* feel free to use double in your code directly */
76 81
77/* eio request structure */ 82/* eio request structure */
… …
79struct eio_req 84struct eio_req
80{ 85{
81 eio_req volatile *next; /* private ETP */ 86 eio_req volatile *next; /* private ETP */
82 87
83 ssize_t result; /* result of syscall, e.g. result = read (... */ 88 ssize_t result; /* result of syscall, e.g. result = read (... */
84 off_t offs; /* read, write, truncate, readahead: file offset; mknod: dev_t */ 89 off_t offs; /* read, write, truncate, readahead: file offset */
85 size_t size; /* read, write, readahead, sendfile: length */ 90 size_t size; /* read, write, readahead, sendfile, msync: length */
86 void *ptr1; /* all applicable requests: pathname, old name */ 91 void *ptr1; /* all applicable requests: pathname, old name */
87 void *ptr2; /* all applicable requests: new name or memory buffer */ 92 void *ptr2; /* all applicable requests: new name or memory buffer */
88 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ 93 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
89 eio_tstamp nv2; /* utime, futime: mtime */ 94 eio_tstamp nv2; /* utime, futime: mtime */
90 95
91 int type; /* EIO_xxx constant ETP */ 96 int type; /* EIO_xxx constant ETP */
92 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open: flags */ 97 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync: flags */
93 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode */ 98 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode */
94 long int3; /* chown, fchown: gid */ 99 long int3; /* chown, fchown: gid; mknod: dev_t */
95 int errorno; /* errno value on syscall return */ 100 int errorno; /* errno value on syscall return */
96 101
97 unsigned char flags; /* private */ 102 unsigned char flags; /* private */
98 signed char pri; /* the priority */ 103 signed char pri; /* the priority */
99 104
… …
154eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ 159eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */
155eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ 160eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */
156eio_req *eio_sync (int pri, eio_cb cb, void *data); 161eio_req *eio_sync (int pri, eio_cb cb, void *data);
157eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); 162eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data);
158eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); 163eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data);
164eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
165eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
159eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); 166eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
160eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); 167eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
161eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 168eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
162eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 169eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
163eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 170eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
… …
217/*****************************************************************************/ 224/*****************************************************************************/
218/* convinience functions */ 225/* convinience functions */
219 226
220ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); 227ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
221 228
229#ifdef __cplusplus
230}
222#endif 231#endif
223 232
233#endif
234

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