diff options
| author | Shehjar Tikoo <shehjart@gluster.com> | 2010-02-25 15:37:47 +0000 |
|---|---|---|
| committer | Anand V. Avati <avati@dev.gluster.com> | 2010-03-04 03:12:18 -0800 |
| commit | 9fe5c6d391fd159fe27022ab806408831ed5b27f (patch) | |
| tree | 7957c6a54d4e7d6e9f0ba6ab0d5cb2f2aa353c96 /xlators/storage/posix/src/posix.c | |
| parent | 1262b1e4fe3fcdfe3f8d6e3c29f41de68cfe8fa3 (diff) | |
posix: Support EOF for file reading
This is a small hack to notify higher translators that an end-of-file
was encountered at the end of the readv operation. This is helpful
in determining end-of-file without sending another readv fop.
Signed-off-by: Shehjar Tikoo <shehjart@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 597 (miscellaneous fixes for xlators to work well with NFS xlator)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=597
Diffstat (limited to 'xlators/storage/posix/src/posix.c')
| -rw-r--r-- | xlators/storage/posix/src/posix.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c index dcff1dbe29e..f1541a2da36 100644 --- a/xlators/storage/posix/src/posix.c +++ b/xlators/storage/posix/src/posix.c @@ -2530,7 +2530,13 @@ posix_readv (call_frame_t *frame, xlator_t *this, goto out; } - op_ret = vec.iov_len; + /* Hack to notify higher layers of EOF. */ + if (stbuf.st_size == 0) + op_errno = ENOENT; + else if ((offset + vec.iov_len) == stbuf.st_size) + op_errno = ENOENT; + + op_ret = vec.iov_len; out: STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno, |