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authorRaghavendra G <raghavendra@gluster.com>2010-08-04 04:45:25 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-08-06 03:37:20 -0700
commitb04d963e91f8b3c72343e1043d6ed8c68699c4fe (patch)
tree42ae4cadaa016efd7f11ea0745d457ee79d3aaf3 /xlators/protocol/server/src/server3_1-fops.c
parent21e4580c24b3e4a1270ad482e1d905afffb00fba (diff)
rpc: changes to glusterfs programs that can take an optional payload argument.
- The existing interface required the transport to separate the procedure header and procedure payload into two different buffers. Making this separation can prove cumbersome for transports like rdma wherein the header and payload can be received in a single buffer (For eg., header and payload of write fop sent as inline msg using rdma-send). This patch delegates the responsiblity of separating out header and payload to programs. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875
Diffstat (limited to 'xlators/protocol/server/src/server3_1-fops.c')
-rw-r--r--xlators/protocol/server/src/server3_1-fops.c52
1 files changed, 30 insertions, 22 deletions
diff --git a/xlators/protocol/server/src/server3_1-fops.c b/xlators/protocol/server/src/server3_1-fops.c
index fb69cf8..5175251 100644
--- a/xlators/protocol/server/src/server3_1-fops.c
+++ b/xlators/protocol/server/src/server3_1-fops.c
@@ -2438,20 +2438,16 @@ int
server_writev_resume (call_frame_t *frame, xlator_t *bound_xl)
{
server_state_t *state = NULL;
- struct iovec iov = {0, };
state = CALL_STATE (frame);
if (state->resolve.op_ret != 0)
goto err;
- if (state->payload_count) {
- iov = state->payload_vector;
- }
-
STACK_WIND (frame, server_writev_cbk,
bound_xl, bound_xl->fops->writev,
- state->fd, &iov, 1, state->offset, state->iobref);
+ state->fd, state->payload_vector, state->payload_count,
+ state->offset, state->iobref);
return 0;
err:
@@ -2978,24 +2974,17 @@ out:
int
server_writev (rpcsvc_request_t *req)
{
- /* TODO : */
- assert (0);
- return 0;
-}
-
-
-int
-server_writev_vec (rpcsvc_request_t *req, struct iovec *payload,
- int payload_count, struct iobref *iobref)
-{
server_state_t *state = NULL;
call_frame_t *frame = NULL;
gfs3_write_req args = {0,};
+ ssize_t len = 0;
+ int i = 0;
if (!req)
return 0;
- if (!xdr_to_writev_req (req->msg[0], &args)) {
+ len = xdr_to_writev_req (req->msg[0], &args);
+ if (len == 0) {
//failed to decode msg;
req->rpc_err = GARBAGE_ARGS;
goto out;
@@ -3019,12 +3008,23 @@ server_writev_vec (rpcsvc_request_t *req, struct iovec *payload,
state->resolve.type = RESOLVE_MUST;
state->resolve.fd_no = args.fd;
state->offset = args.offset;
+ state->iobref = iobref_ref (req->iobref);
- if (payload_count != 0) {
- state->iobref = iobref_ref (iobref);
- state->size = req->msg[1].iov_len;
- state->payload_count = payload_count;
- state->payload_vector = *payload;
+ if (len < req->msg[0].iov_len) {
+ state->payload_vector[0].iov_base
+ = (req->msg[0].iov_base + len);
+ state->payload_vector[0].iov_len
+ = req->msg[0].iov_len - len;
+ state->payload_count = 1;
+ }
+
+ for (i = 1; i < req->count; i++) {
+ state->payload_vector[state->payload_count++]
+ = req->msg[i];
+ }
+
+ for (i = 0; i < state->payload_count; i++) {
+ state->size += state->payload_vector[i].iov_len;
}
resolve_and_resume (frame, server_writev_resume);
@@ -3034,6 +3034,14 @@ out:
int
+server_writev_vec (rpcsvc_request_t *req, struct iovec *payload,
+ int payload_count, struct iobref *iobref)
+{
+ return server_writev (req);
+}
+
+
+int
server_release (rpcsvc_request_t *req)
{
server_connection_t *conn = NULL;