Zig 0.17.0-dev (Split by item)

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map_create

bpf.map_create

pub fn map_create(map_type: MapType, key_size: u32, value_size: u32, max_entries: u32) !fd_t

File

lib/std/os/linux/bpf.zig:1612

Code

pub fn map_create(map_type: MapType, key_size: u32, value_size: u32, max_entries: u32) !fd_t {
    var attr = Attr{
        .map_create = std.mem.zeroes(MapCreateAttr),
    };

    attr.map_create.map_type = @backingInt(map_type);
    attr.map_create.key_size = key_size;
    attr.map_create.value_size = value_size;
    attr.map_create.max_entries = max_entries;

    const rc = linux.bpf(.map_create, &attr, @sizeOf(MapCreateAttr));
    switch (errno(rc)) {
        .SUCCESS => return @as(fd_t, @intCast(rc)),
        .INVAL => return error.MapTypeOrAttrInvalid,
        .NOMEM => return error.SystemResources,
        .PERM => return error.PermissionDenied,
        else => |err| return unexpectedErrno(err),
    }
}