/*
* 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;
}
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;
}
