rpma_conn_req_recv - initiate the receive operation
#include <librpma.h> struct rpma_conn_req; struct rpma_mr_local; int rpma_conn_req_recv(struct rpma_conn_req *req, struct rpma_mr_local *dst, size_t offset, size_t len, const void *op_context);
rpma_conn_req_recv() initiates the receive operation. It prepares a buffer for a message sent from other side of the connection. Please see rpma_send(3). This is a variant of rpma_recv(3) which may be used before the connection is established. op_context is returned in the wr_id field of the completion (struct ibv_wc).
The rpma_conn_req_recv() function returns 0 on success or a negative error code on failure.
rpma_conn_req_recv() can fail with the following errors:
RPMA_E_INVAL - req or src or op_context is NULL
RPMA_E_PROVIDER - ibv_post_recv(3) failed
rpma_conn_req_new(3), rpma_mr_reg(3), librpma(7) and https://pmem.io/rpma/
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