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authorRaghavendra G <raghavendra@gluster.com>2010-07-28 06:23:31 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-07-28 05:08:26 -0700
commit40d3ad15856c88d93d16264aa1f6bb55806aafde (patch)
tree1290d311c9001e3954176f005b89a2e438321bd9 /rpc/rpc-lib/src/rpc-transport.c
parentb8692a3c3cc8e0dab404664e0aeb6ebaea6ab6e5 (diff)
changes to rpc
- use mem-pool for requests and saved_frames. - preserve the rpc_req structure till rpc invokes program's reply. This will enable us to store transport specific data that has to last till reply has come (eg., memory regions of chunk lists in case of rdma). - change signature of rpc_clnt_submit to accept rsphdr_vector and rsppayload_vector. The buffers pointed by these vectors will be from iobufs and these iobufs are added to an iobref which should also be passed as an arguement to rpc_clnt_submit. 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 'rpc/rpc-lib/src/rpc-transport.c')
-rw-r--r--rpc/rpc-lib/src/rpc-transport.c96
1 files changed, 54 insertions, 42 deletions
diff --git a/rpc/rpc-lib/src/rpc-transport.c b/rpc/rpc-lib/src/rpc-transport.c
index b77ea2aa553..50379c14950 100644
--- a/rpc/rpc-lib/src/rpc-transport.c
+++ b/rpc/rpc-lib/src/rpc-transport.c
@@ -628,20 +628,10 @@ rpc_transport_pollin_destroy (rpc_transport_pollin_t *pollin)
goto out;
}
- if (pollin->vectored) {
- if (pollin->data.vector.iobuf1) {
- iobuf_unref (pollin->data.vector.iobuf1);
- }
-
- if (pollin->data.vector.iobuf2) {
- iobuf_unref (pollin->data.vector.iobuf2);
- }
- } else {
- if (pollin->data.simple.iobuf) {
- iobuf_unref (pollin->data.simple.iobuf);
- }
+ if (pollin->iobref) {
+ iobref_unref (pollin->iobref);
}
-
+
if (pollin->private) {
/* */
GF_FREE (pollin->private);
@@ -654,9 +644,8 @@ out:
rpc_transport_pollin_t *
-rpc_transport_pollin_alloc (rpc_transport_t *this, struct iobuf *iobuf,
- size_t size, struct iobuf *vectored_buf,
- size_t vectored_size, void *private)
+rpc_transport_pollin_alloc (rpc_transport_t *this, struct iovec *vector,
+ int count, struct iobref *iobref, void *private)
{
rpc_transport_pollin_t *msg = NULL;
msg = GF_CALLOC (1, sizeof (*msg), gf_common_mt_rpc_trans_pollin_t);
@@ -665,19 +654,15 @@ rpc_transport_pollin_alloc (rpc_transport_t *this, struct iobuf *iobuf,
goto out;
}
- if (vectored_buf) {
+ if (count == 2) {
msg->vectored = 1;
- msg->data.vector.iobuf1 = iobuf_ref (iobuf);
- msg->data.vector.size1 = size;
-
- msg->data.vector.iobuf2 = iobuf_ref (vectored_buf);
- msg->data.vector.size2 = vectored_size;
- } else {
- msg->data.simple.iobuf = iobuf_ref (iobuf);
- msg->data.simple.size = size;
}
+ memcpy (msg->vector, vector, count * sizeof (*vector));
+ msg->count = count;
+ msg->iobref = iobref_ref (iobref);
msg->private = private;
+
out:
return msg;
}
@@ -698,6 +683,7 @@ rpc_transport_same_process_pollin_alloc (rpc_transport_t *this,
int progpayloadlen = 0;
char vectored = 0;
char *hdr = NULL, *progpayloadbuf = NULL;
+ struct iobuf *iobuf = NULL;
if (!rpchdr || !proghdr) {
goto err;
@@ -729,47 +715,72 @@ rpc_transport_same_process_pollin_alloc (rpc_transport_t *this,
}
if (vectored) {
- msg->data.vector.iobuf1 = iobuf_get (this->ctx->iobuf_pool);
- if (!msg->data.vector.iobuf1) {
+ msg->iobref = iobref_new ();
+ if (!msg->iobref) {
+ gf_log ("rpc-transport", GF_LOG_ERROR,
+ "out of memory");
+ goto err;
+ }
+
+ iobuf = iobuf_get (this->ctx->iobuf_pool);
+ if (!iobuf) {
gf_log ("rpc_transport", GF_LOG_ERROR,
"out of memory");
goto err;
}
- msg->data.vector.size1 = rpchdrlen + proghdrlen;
- hdr = iobuf_ptr (msg->data.vector.iobuf1);
+ iobref_add (msg->iobref, iobuf);
+ iobuf_unref (iobuf);
+
+ msg->vector[0].iov_len = rpchdrlen + proghdrlen;
+ msg->vector[0].iov_base = hdr = iobuf_ptr (iobuf);
if (!is_request && rsp) {
- msg->data.vector.iobuf2 = rsp->rspbuf;
- progpayloadbuf = rsp->rspvec->iov_base;
+ msg->vector[1] = rsp->rsp_payload[0];
+ progpayloadbuf = rsp->rsp_payload[0].iov_base;
} else {
- msg->data.vector.iobuf2 = iobuf_get (this->ctx->iobuf_pool);
- if (!msg->data.vector.iobuf2) {
+ iobuf = iobuf_get (this->ctx->iobuf_pool);
+ if (!iobuf) {
gf_log ("rpc_transport", GF_LOG_ERROR,
"out of memory");
goto err;
}
- progpayloadbuf = iobuf_ptr (msg->data.vector.iobuf2);
+ iobref_add (msg->iobref, iobuf);
+ iobuf_unref (iobuf);
+
+ msg->vector[1].iov_base
+ = progpayloadbuf = iobuf_ptr (iobuf);
}
- msg->data.vector.size2 = progpayloadlen;
+ msg->vector[1].iov_len = progpayloadlen;
} else {
if (!is_request && rsp) {
/* FIXME: Assuming rspvec contains only one vector */
- hdr = rsp->rspvec->iov_base;
- msg->data.simple.iobuf = rsp->rspbuf;
+ hdr = rsp->rsphdr[0].iov_base;
+ msg->vector[0] = rsp->rsphdr[0];
} else {
- msg->data.simple.iobuf = iobuf_get (this->ctx->iobuf_pool);
- if (!msg->data.simple.iobuf) {
+ msg->iobref = iobref_new ();
+ if (!msg->iobref) {
+ gf_log ("rpc-transport", GF_LOG_ERROR,
+ "out of memory");
+ goto err;
+ }
+
+ iobuf = iobuf_get (this->ctx->iobuf_pool);
+ if (!iobuf) {
gf_log ("rpc_transport", GF_LOG_ERROR,
"out of memory");
goto err;
}
- hdr = iobuf_ptr (msg->data.simple.iobuf);
+ iobref_add (msg->iobref, iobuf);
+ iobuf_unref (iobuf);
+
+ hdr = iobuf_ptr (iobuf);
+ msg->vector[0].iov_base = hdr;
}
- msg->data.simple.size = rpchdrlen + proghdrlen;
+ msg->vector[0].iov_len = rpchdrlen + proghdrlen;
}
iov_unload (hdr, rpchdr, rpchdrcount);
@@ -1253,7 +1264,8 @@ rpc_transport_peerproc (void *trans_data)
}
pthread_mutex_unlock (&trans->handover.mutex);
- rpc_transport_notify (trans, RPC_TRANSPORT_MSG_RECEIVED, msg->pollin);
+ rpc_transport_notify (trans, RPC_TRANSPORT_MSG_RECEIVED,
+ msg->pollin);
rpc_transport_handover_destroy (msg);
}
}