int MPIC_Send(void *buf, int count, MPI_Datatype datatype, int dest, int tag,
MPI_Comm comm)
{
int mpi_errno, context_id;
MPID_Request *request_ptr=NULL;
MPID_Comm *comm_ptr=NULL;
MPIDI_STATE_DECL(MPID_STATE_MPIC_SEND);
MPIDI_PT2PT_FUNC_ENTER_FRONT(MPID_STATE_MPIC_SEND);
MPID_Comm_get_ptr( comm, comm_ptr );
context_id = (comm_ptr->comm_kind == MPID_INTRACOMM) ?
MPID_CONTEXT_INTRA_COLL : MPID_CONTEXT_INTER_COLL;
mpi_errno = MPID_Send(buf, count, datatype, dest, tag, comm_ptr,
context_id, &request_ptr);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
if (request_ptr) {
mpi_errno = MPIC_Wait(request_ptr);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
MPID_Request_release(request_ptr);
}
fn_exit:
MPIDI_PT2PT_FUNC_EXIT(MPID_STATE_MPIC_SEND);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
if (request_ptr) {
MPID_Request_release(request_ptr);
}
goto fn_exit;
/* --END ERROR HANDLING-- */
}
int MPIC_Wait(MPID_Request * request_ptr, mpir_errflag_t *errflag)
{
int mpi_errno = MPI_SUCCESS;
MPIDI_STATE_DECL(MPID_STATE_MPIC_WAIT);
MPIDI_PT2PT_FUNC_ENTER(MPID_STATE_MPIC_WAIT);
MPIU_DBG_MSG_S(PT2PT, TYPICAL, "IN: errflag = %s", *errflag?"TRUE":"FALSE");
if (request_ptr->kind == MPID_REQUEST_SEND)
request_ptr->status.MPI_TAG = 0;
if (!MPID_Request_is_complete(request_ptr))
{
MPID_Progress_state progress_state;
MPID_Progress_start(&progress_state);
while (!MPID_Request_is_complete(request_ptr))
{
mpi_errno = MPID_Progress_wait(&progress_state);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
}
MPID_Progress_end(&progress_state);
}
if (request_ptr->kind == MPID_REQUEST_RECV)
MPIR_Process_status(&request_ptr->status, errflag);
MPIR_TAG_CLEAR_ERROR_BITS(request_ptr->status.MPI_TAG);
fn_exit:
MPIU_DBG_MSG_D(PT2PT, TYPICAL, "OUT: errflag = %d", *errflag);
MPIDI_PT2PT_FUNC_EXIT(MPID_STATE_MPIC_WAIT);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
goto fn_exit;
/* --END ERROR HANDLING-- */
}
