NAME

rpma_conn_wait - wait for a completion event on the shared completion channel from CQ or RCQ

SYNOPSIS

      #include <librpma.h>


      struct rpma_conn;


      struct rpma_cq


      int rpma_conn_wait(struct rpma_conn *conn, int flags, struct rpma_cq **cq, bool *is_rcq)

DESCRIPTION

rpma_conn_wait() waits for a completion event on the shared completion channel from CQ or RCQ, acks it and returns a CQ that caused the event in the cq argument and a boolean value saying if it is RCQ or not in the is_rcq argument (if is_rcq is not NULL). If rpma_conn_wait() succeeds, then all available completions should be collected from the returned cq using rpma_cq_get_wc(3).

RETURN VALUE

The rpma_conn_wait() function returns 0 on success or a negative error code on failure.

ERRORS

rpma_conn_wait() can fail with the following errors:

• RPMA_E_INVAL - conn or cq are NULL
• RPMA_E_NOT_SHARED_CHNL - the completion event channel is not shared
• RPMA_E_NO_COMPLETION - ibv_get_cq_event(3) failed
• RPMA_E_UNKNOWN - ibv_get_cq_event(3) returned unknown CQ
• RPMA_E_PROVIDER - ibv_req_notify_cq(3) failed

SEE ALSO

rpma_conn_req_new(3), librpma(7) and https://pmem.io/rpma/