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455daf8e
编写于
12月 22, 2015
作者:
B
Bernard Xiong
浏览文件
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电子邮件补丁
差异文件
Add ioctl API and fix the read/write conflict issue with newlib's API.
上级
74def7ed
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
55 addition
and
1 deletion
+55
-1
components/dfs/include/dfs_posix.h
components/dfs/include/dfs_posix.h
+10
-1
components/dfs/src/dfs_posix.c
components/dfs/src/dfs_posix.c
+45
-0
未找到文件。
components/dfs/include/dfs_posix.h
浏览文件 @
455daf8e
...
...
@@ -119,20 +119,29 @@ struct stat;
/* file api*/
int
open
(
const
char
*
file
,
int
flags
,
int
mode
);
int
close
(
int
d
);
#ifdef RT_USING_NEWLIB
_READ_WRITE_RETURN_TYPE
_EXFUN
(
read
,
(
int
__fd
,
void
*
__buf
,
size_t
__nbyte
));
_READ_WRITE_RETURN_TYPE
_EXFUN
(
write
,
(
int
__fd
,
const
void
*
__buf
,
size_t
__nbyte
));
#else
int
read
(
int
fd
,
void
*
buf
,
size_t
len
);
int
write
(
int
fd
,
const
void
*
buf
,
size_t
len
);
#endif
off_t
lseek
(
int
fd
,
off_t
offset
,
int
whence
);
int
rename
(
const
char
*
from
,
const
char
*
to
);
int
unlink
(
const
char
*
pathname
);
int
stat
(
const
char
*
file
,
struct
stat
*
buf
);
int
fstat
(
int
fildes
,
struct
stat
*
buf
);
int
statfs
(
const
char
*
path
,
struct
statfs
*
buf
);
int
fsync
(
int
fildes
);
int
ioctl
(
int
fildes
,
unsigned
long
cmd
,
void
*
data
);
/* directory api*/
int
rmdir
(
const
char
*
path
);
int
chdir
(
const
char
*
path
);
char
*
getcwd
(
char
*
buf
,
size_t
size
);
/* file system api */
int
statfs
(
const
char
*
path
,
struct
statfs
*
buf
);
#ifdef __cplusplus
}
#endif
...
...
components/dfs/src/dfs_posix.c
浏览文件 @
455daf8e
...
...
@@ -123,7 +123,11 @@ RTM_EXPORT(close);
* @return the actual read data buffer length. If the returned value is 0, it
* may be reach the end of file, please check errno.
*/
#ifdef RT_USING_NEWLIB
_READ_WRITE_RETURN_TYPE
_EXFUN
(
read
,
(
int
fd
,
void
*
buf
,
size_t
len
))
#else
int
read
(
int
fd
,
void
*
buf
,
size_t
len
)
#endif
{
int
result
;
struct
dfs_fd
*
d
;
...
...
@@ -163,7 +167,11 @@ RTM_EXPORT(read);
*
* @return the actual written data buffer length.
*/
#ifdef RT_USING_NEWLIB
_READ_WRITE_RETURN_TYPE
_EXFUN
(
write
,
(
int
fd
,
const
void
*
buf
,
size_t
len
))
#else
int
write
(
int
fd
,
const
void
*
buf
,
size_t
len
)
#endif
{
int
result
;
struct
dfs_fd
*
d
;
...
...
@@ -405,6 +413,43 @@ int fsync(int fildes)
}
RTM_EXPORT
(
fsync
);
/**
* this function is a POSIX compliant version, which shall perform a variety of
* control functions on devices.
*
* @param fildes the file description
* @param cmd the specified command
* @param data represents the additional information that is needed by this
* specific device to perform the requested function.
*
* @return 0 on successful completion. Otherwise, -1 shall be returned and errno
* set to indicate the error.
*/
int
ioctl
(
int
fildes
,
unsigned
long
cmd
,
void
*
data
)
{
int
ret
;
struct
dfs_fd
*
d
;
/* get the fd */
d
=
fd_get
(
fildes
);
if
(
d
==
RT_NULL
)
{
rt_set_errno
(
-
DFS_STATUS_EBADF
);
return
-
1
;
}
ret
=
dfs_file_ioctl
(
d
,
cmd
,
data
);
if
(
ret
!=
DFS_STATUS_OK
)
{
rt_set_errno
(
ret
);
ret
=
-
1
;
}
fd_put
(
d
);
return
ret
;
}
RTM_EXPORT
(
ioctl
);
/**
* this function is a POSIX compliant version, which will return the
* information about a mounted file system.
...
...
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