rpma_mr_get_descriptor3

Usage

      #include <librpma.h>
      struct rpma_mr_local;
      int rpma_mr_get_descriptor(const struct rpma_mr_local *mr, void *desc);

Overview

rpma_mr_get_descriptor() writes a network-transferable description of the provided local memory region (called 'descriptor'). Once the descriptor is transferred to the other side it should be decoded by rpma_mr_remote_from_descriptor() to create a remote memory region's structure which allows for Remote Memory Access. Please see librpma(7) for details.

Security warning

See rpma_mr_remote_from_descriptor(3).

Return value

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

Errors

rpma_mr_get_descriptor() can fail with the following error:

•

RPMA_E_INVAL - mr or desc is NULL