rpma_cq_wait(3)

rpma_cq_wait - wait for a completion and ack it

Section 3 librpma-dev bookworm source

Description

rpma_cq_wait

NAME

rpma_cq_wait - wait for a completion and ack it

SYNOPSIS

#include <librpma.h>

struct rpma_cq;
int rpma_cq_wait(struct rpma_cq *cq);

DESCRIPTION

rpma_cq_wait() waits for an incoming completion event and acks it. If rpma_cq_wait() succeeds, then all available completions should be collected using rpma_cq_get_wc(3) before the next rpma_cq_wait() call.

RETURN VALUE

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

ERRORS

rpma_cq_wait() can fail with the following errors:

	•		RPMA_E_INVAL - cq is NULL
	•		RPMA_E_PROVIDER - ibv_req_notify_cq(3) failed with a provider error
	•		RPMA_E_NO_COMPLETION - no completions available
	•		RPMA_E_SHARED_CHANNEL - the completion event channel is shared and cannot be handled by any particular CQ