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fs/vfs: Add nx_ioctl/nx_fcntl function

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Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2020-05-03 17:38:48 +08:00
committed by patacongo
parent 65308eabb4
commit 4b5360362e
3 changed files with 212 additions and 95 deletions
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include/nuttx/fs/fs.h
+44
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@@ -81,6 +81,7 @@
# define _NX_READ(f,b,s) nx_read(f,b,s)
# define _NX_WRITE(f,b,s) nx_write(f,b,s)
# define _NX_SEEK(f,o,w) nx_seek(f,o,w)
# define _NX_IOCTL(f,r,a) nx_ioctl(f,r,a)
# define _NX_STAT(p,s) nx_stat(p,s)
# define _NX_GETERRNO(r) (-(r))
# define _NX_SETERRNO(r) set_errno(-(r))
@@ -95,6 +96,7 @@
# define _NX_READ(f,b,s) read(f,b,s)
# define _NX_WRITE(f,b,s) write(f,b,s)
# define _NX_SEEK(f,o,w) lseek(f,o,w)
# define _NX_IOCTL(f,r,a) ioctl(f,r,a)
# define _NX_STAT(p,s) stat(p,s)
# define _NX_GETERRNO(r) errno
# define _NX_SETERRNO(r)
@@ -1248,6 +1250,25 @@ int file_truncate(FAR struct file *filep, off_t length);
int file_ioctl(FAR struct file *filep, int req, unsigned long arg);
/****************************************************************************
* Name: nx_ioctl
*
* Description:
* nx_ioctl() is similar to the standard 'ioctl' interface except that is
* not a cancellation point and it does not modify the errno variable.
*
* nx_ioctl() is an internal NuttX interface and should not be called from
* applications.
*
* Returned Value:
* Returns a non-negative number on success; A negated errno value is
* returned on any failure (see comments ioctl() for a list of appropriate
* errno values).
*
****************************************************************************/
int nx_ioctl(int fd, int req, unsigned long arg);
/****************************************************************************
* Name: file_vfcntl
*
@@ -1290,6 +1311,29 @@ int file_vfcntl(FAR struct file *filep, int cmd, va_list ap);
int file_fcntl(FAR struct file *filep, int cmd, ...);
/****************************************************************************
* Name: nx_fcntl and nx_vfcntl
*
* Description:
* nx_fcntl() is similar to the standard 'fcntl' interface except that is
* not a cancellation point and it does not modify the errno variable.
*
* nx_vfcntl() is identical except that it accepts a va_list as an argument
* versus taking a variable length list of arguments.
*
* nx_fcntl() and nx_vfcntl are internal NuttX interface and should not be
* called from applications.
*
* Returned Value:
* Returns a non-negative number on success; A negated errno value is
* returned on any failure (see comments fcntl() for a list of appropriate
* errno values).
*
****************************************************************************/
int nx_vfcntl(int fd, int cmd, va_list ap);
int nx_fcntl(int fd, int cmd, ...);
/****************************************************************************
* Name: file_poll
*