static void mca_oob_tcp_peer_recv_handler(int sd, short flags, void* user)
{
mca_oob_tcp_peer_t* peer = (mca_oob_tcp_peer_t *)user;
OPAL_THREAD_LOCK(&peer->peer_lock);
switch(peer->peer_state) {
case MCA_OOB_TCP_CONNECT_ACK:
{
mca_oob_tcp_peer_recv_connect_ack(peer);
break;
}
case MCA_OOB_TCP_CONNECTED:
{
/* allocate a new message and setup for recv */
if(NULL == peer->peer_recv_msg) {
int rc;
mca_oob_tcp_msg_t* msg;
MCA_OOB_TCP_MSG_ALLOC(msg, rc);
if(NULL == msg) {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_peer_recv_handler: unable to allocate recv message\n",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)));
return;
}
msg->msg_type = MCA_OOB_TCP_UNEXPECTED;
msg->msg_rc = 0;
msg->msg_flags = 0;
msg->msg_peer = peer->peer_name;
msg->msg_rwiov = mca_oob_tcp_msg_iov_alloc(msg,2);
msg->msg_rwbuf = NULL;
msg->msg_rwcnt = msg->msg_rwnum = 1;
msg->msg_rwptr = msg->msg_rwiov;
msg->msg_rwiov[0].iov_base = (ompi_iov_base_ptr_t)&msg->msg_hdr;
msg->msg_rwiov[0].iov_len = sizeof(msg->msg_hdr);
peer->peer_recv_msg = msg;
}
if (peer->peer_recv_msg &&
mca_oob_tcp_msg_recv_handler(peer->peer_recv_msg, peer)) {
mca_oob_tcp_msg_t* msg = peer->peer_recv_msg;
peer->peer_recv_msg = NULL;
OPAL_THREAD_UNLOCK(&peer->peer_lock);
mca_oob_tcp_msg_recv_complete(msg, peer);
return;
}
break;
}
default:
{
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_peer_recv_handler: invalid socket state(%d)",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)),
peer->peer_state);
mca_oob_tcp_peer_close(peer);
break;
}
}
OPAL_THREAD_UNLOCK(&peer->peer_lock);
}
int mca_oob_tcp_send(
orte_process_name_t* name,
struct iovec *iov,
int count,
int tag,
int flags)
{
mca_oob_tcp_peer_t* peer = mca_oob_tcp_peer_lookup(name);
mca_oob_tcp_msg_t* msg;
int size;
int rc;
if(NULL == peer)
return ORTE_ERR_UNREACH;
if(mca_oob_tcp_component.tcp_debug >= OOB_TCP_DEBUG_ALL) {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_send: tag %d\n",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)),
tag);
}
MCA_OOB_TCP_MSG_ALLOC(msg, rc);
if(NULL == msg)
return rc;
/* calculate the size of the message */
size = 0;
for(rc = 0; rc < count; rc++) {
size += iov[rc].iov_len;
}
/* turn the size to network byte order so there will be no problems */
msg->msg_hdr.msg_type = MCA_OOB_TCP_DATA;
msg->msg_hdr.msg_size = size;
msg->msg_hdr.msg_tag = tag;
if (NULL == orte_process_info.my_name) {
msg->msg_hdr.msg_src = *ORTE_NAME_INVALID;
} else {
msg->msg_hdr.msg_src = *orte_process_info.my_name;
}
msg->msg_hdr.msg_dst = *name;
/* create one additional iovect that will hold the header */
msg->msg_type = MCA_OOB_TCP_POSTED;
msg->msg_rc = 0;
msg->msg_flags = flags;
msg->msg_uiov = iov;
msg->msg_ucnt = count;
msg->msg_rwiov = mca_oob_tcp_msg_iov_alloc(msg, count+1);
msg->msg_rwiov[0].iov_base = (ompi_iov_base_ptr_t)(&msg->msg_hdr);
msg->msg_rwiov[0].iov_len = sizeof(msg->msg_hdr);
msg->msg_rwptr = msg->msg_rwiov;
msg->msg_rwcnt = msg->msg_rwnum = count + 1;
memcpy(msg->msg_rwiov+1, msg->msg_uiov, sizeof(struct iovec)*msg->msg_ucnt);
msg->msg_rwbuf = NULL;
msg->msg_cbfunc = NULL;
msg->msg_cbdata = NULL;
msg->msg_complete = false;
msg->msg_peer = peer->peer_name;
if (NULL != name && NULL != orte_process_info.my_name &&
ORTE_EQUAL == mca_oob_tcp_process_name_compare(name, orte_process_info.my_name)) { /* local delivery */
return mca_oob_tcp_send_self(peer,msg,iov,count);
}
MCA_OOB_TCP_HDR_HTON(&msg->msg_hdr);
rc = mca_oob_tcp_peer_send(peer, msg);
if(rc != ORTE_SUCCESS) {
MCA_OOB_TCP_MSG_RETURN(msg);
return rc;
}
rc = mca_oob_tcp_msg_wait(msg, &size);
MCA_OOB_TCP_MSG_RETURN(msg);
if(rc != ORTE_SUCCESS)
return rc;
size -= sizeof(mca_oob_tcp_hdr_t);
return size;
}
/*
* Non-blocking version of mca_oob_send().
*
* @param peer (IN) Opaque name of peer process.
* @param msg (IN) Array of iovecs describing user buffers and lengths.
* @param count (IN) Number of elements in iovec array.
* @param flags (IN) Currently unused.
* @param cbfunc (IN) Callback function on send completion.
* @param cbdata (IN) User data that is passed to callback function.
* @return OMPI error code (<0) on error number of bytes actually sent.
*
*/
int mca_oob_tcp_send_nb(
orte_process_name_t* target,
orte_process_name_t* origin,
struct iovec* iov,
int count,
int tag,
int flags,
orte_rml_callback_fn_t cbfunc,
void* cbdata)
{
mca_oob_tcp_peer_t* peer = mca_oob_tcp_peer_lookup(target);
mca_oob_tcp_msg_t* msg;
int size;
int rc;
if(NULL == peer)
return ORTE_ERR_UNREACH;
MCA_OOB_TCP_MSG_ALLOC(msg, rc);
if(NULL == msg) {
return rc;
}
/* calculate the size of the message */
size = 0;
for(rc = 0; rc < count; rc++) {
size += iov[rc].iov_len;
}
if(mca_oob_tcp_component.tcp_debug >= OOB_TCP_DEBUG_ALL) {
opal_output(0, "%s-%s mca_oob_tcp_send_nb: tag %d size %lu\n",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&(peer->peer_name)),
tag, (unsigned long)size );
}
/* turn the size to network byte order so there will be no problems */
msg->msg_hdr.msg_type = MCA_OOB_TCP_DATA;
msg->msg_hdr.msg_size = size;
msg->msg_hdr.msg_tag = tag;
msg->msg_hdr.msg_origin = *origin;
msg->msg_hdr.msg_src = *ORTE_PROC_MY_NAME;
msg->msg_hdr.msg_dst = *target;
/* create one additional iovect that will hold the size of the message */
msg->msg_type = MCA_OOB_TCP_POSTED;
msg->msg_rc = 0;
msg->msg_flags = flags;
msg->msg_uiov = iov;
msg->msg_ucnt = count;
msg->msg_rwiov = mca_oob_tcp_msg_iov_alloc(msg,count+1);
msg->msg_rwiov[0].iov_base = (ompi_iov_base_ptr_t)(&msg->msg_hdr);
msg->msg_rwiov[0].iov_len = sizeof(msg->msg_hdr);
msg->msg_rwptr = msg->msg_rwiov;
msg->msg_rwcnt = msg->msg_rwnum = count + 1;
memcpy(msg->msg_rwiov+1, msg->msg_uiov, sizeof(struct iovec)*msg->msg_ucnt);
msg->msg_rwbuf = NULL;
msg->msg_cbfunc = cbfunc;
msg->msg_cbdata = cbdata;
msg->msg_complete = false;
msg->msg_peer = peer->peer_name;
if (OPAL_EQUAL == mca_oob_tcp_process_name_compare(target, ORTE_PROC_MY_NAME)) { /* local delivery */
rc = mca_oob_tcp_send_self(peer,msg,iov,count);
if (rc < 0 ) {
return rc;
} else if (size == rc) {
return ORTE_SUCCESS;
} else {
return ORTE_ERROR;
}
}
MCA_OOB_TCP_HDR_HTON(&msg->msg_hdr);
rc = mca_oob_tcp_peer_send(peer, msg);
if(rc != ORTE_SUCCESS) {
if (rc != ORTE_ERR_ADDRESSEE_UNKNOWN) {
MCA_OOB_TCP_MSG_RETURN(msg);
}
return rc;
}
return ORTE_SUCCESS;
}
/*
* Non-blocking version of mca_oob_recv().
*
* @param peer (IN) Opaque name of peer process or ORTE_NAME_WILDCARD for wildcard receive.
* @param msg (IN) Array of iovecs describing user buffers and lengths.
* @param count (IN) Number of elements in iovec array.
* @param tag (IN) User supplied tag for matching send/recv.
* @param flags (IN) May be MCA_OOB_PEEK to return up to size bytes of msg w/out removing it from the queue,
* @param cbfunc (IN) Callback function on recv completion.
* @param cbdata (IN) User data that is passed to callback function.
* @return OMPI error code (<0) on error.
*/
int mca_oob_tcp_recv_nb(
orte_process_name_t* peer,
struct iovec* iov,
int count,
int tag,
int flags,
orte_rml_callback_fn_t cbfunc,
void* cbdata)
{
mca_oob_tcp_msg_t *msg;
mca_oob_tcp_msg_t *match;
int i, rc, size = 0;
/* validate params */
if(NULL == iov || 0 == count) {
return ORTE_ERR_BAD_PARAM;
}
/* allocate/initialize the posted receive */
MCA_OOB_TCP_MSG_ALLOC(msg, rc);
if(NULL == msg) {
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
return rc;
}
/* determine overall size of user supplied buffer */
for(i = 0; i < count; i++) {
size += iov[i].iov_len;
}
/* fill in the header */
msg->msg_hdr.msg_origin = *peer;
msg->msg_hdr.msg_src = *ORTE_PROC_MY_NAME;
msg->msg_hdr.msg_dst = *peer;
msg->msg_hdr.msg_size = size;
msg->msg_hdr.msg_tag = tag;
msg->msg_type = MCA_OOB_TCP_POSTED;
msg->msg_rc = 0;
msg->msg_flags = flags;
msg->msg_uiov = iov;
msg->msg_ucnt = count;
msg->msg_cbfunc = cbfunc;
msg->msg_cbdata = cbdata;
msg->msg_complete = false;
msg->msg_peer = *peer;
msg->msg_rwbuf = NULL;
msg->msg_rwiov = NULL;
/* acquire the match lock */
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
if(flags & ORTE_RML_PERSISTENT) {
opal_list_append(&mca_oob_tcp_component.tcp_msg_post, (opal_list_item_t *) msg);
while(NULL != (match = mca_oob_tcp_msg_match_recv(peer,tag))) {
mca_oob_tcp_msg_matched(msg, match);
}
} else {
/* check to see if a matching receive is on the list */
match = mca_oob_tcp_msg_match_recv(peer, tag);
if(NULL != match) {
mca_oob_tcp_msg_matched(msg, match);
MCA_OOB_TCP_MSG_RETURN(msg);
} else {
opal_list_append(&mca_oob_tcp_component.tcp_msg_post, (opal_list_item_t *) msg);
}
}
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
return 0;
}
