diff options
| author | Anand Avati <avati@redhat.com> | 2012-09-05 17:20:05 -0700 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2012-12-04 14:46:04 -0800 |
| commit | 98879ebdddd4ca77440defad6a73acf4fa1e75ab (patch) | |
| tree | 041cfce881b40d22758a423542e380578dd8112f /libglusterfs/src | |
| parent | 741766c708f2a246854584c064d63d3fba67be90 (diff) | |
rpc-transport/socket: implement read-ahead of RPC headers
This reduces the number of read() system calls on the socket to
complete the full RPC fragment reading.
Change-Id: I421a53af195ead4aad70e09e0172a61ad7912d83
BUG: 821087
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/3855
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Diffstat (limited to 'libglusterfs/src')
| -rw-r--r-- | libglusterfs/src/common-utils.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libglusterfs/src/common-utils.h b/libglusterfs/src/common-utils.h index 6d46a997105..75692309e14 100644 --- a/libglusterfs/src/common-utils.h +++ b/libglusterfs/src/common-utils.h @@ -349,6 +349,28 @@ iov_unload (char *buf, const struct iovec *vector, int count) static inline size_t +iov_load (const struct iovec *vector, int count, char *buf, int size) +{ + size_t left = size; + size_t cp = 0; + int ret = 0; + int i = 0; + + while (left && i < count) { + cp = min (vector[i].iov_len, left); + if (vector[i].iov_base != buf + (size - left)) + memcpy (vector[i].iov_base, buf + (size - left), cp); + ret += cp; + left -= cp; + if (left) + i++; + } + + return ret; +} + + +static inline size_t iov_copy (const struct iovec *dst, int dcnt, const struct iovec *src, int scnt) { |