2011/6/23 mowang da <whooya.xxl@xxxxxxxxx>:
> I am currently testing Ceph , l write some code like this:
>
> size_t fd = open("/mnt/aaa", O_CREAT | O_RDWR | O_APPEND , 0755);
>
> then l can not write buffer to the fd, 1 think there is something wrong in :
>
> int ceph_flags_to_mode(int flags)
>
> {
>
> ...
>
> if ((flags & O_ACCMODE) == O_RDWR)
> mode = CEPH_FILE_MODE_RDWR;
> else if ((flags & O_ACCMODE) == O_WRONLY) //?
> mode = CEPH_FILE_MODE_WR;
> else
> mode = CEPH_FILE_MODE_RD;
>
> ...
>
> }
>
> if change the "(flags & O_ACCMODE) == O_WRONLY" to "(flags &
> O_ACCMODE) == O_ACCMODE", l can write success!
>
Can you verify that you're sending the right flags?
According to this:
#define O_ACCMODE 0003
#define O_RDONLY 00
#define O_WRONLY 01
#define O_RDWR 02
your check will only work if you pass O_RDWR | O_RDONLY, which is
obviously not what you meant to do.
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