Libbpf userspace function bpf_map__reuse_fd

0.0.1

Let a bpf_map reuse a file descriptor.

Definition

int bpf_map__reuse_fd(struct bpf_map *map, int fd);

Parameters

• map: Pointer to the bpf_map object.
• fd: File descriptor to reuse.

Return

0 on success, a negative error code on failure.

Usage

This function assigns an existing file descriptor to a bpf_map object. When a program references this map, it will use the file descriptor provided by the user instead of creating a new one. If the map is already used by other programs, it will cause the map to be shared.

Example

Docs could be improved

This part of the docs is incomplete, contributions are very welcome