bind

fn bind(
    ev: *Evented,
    cancel_region: *CancelRegion,
    socket_fd: fd_t,
    addr: *const linux.sockaddr,
    addr_len: linux.socklen_t,
) !void {
    while (true) {
        const thread = try cancel_region.awaitIoUring();
        thread.enqueue().* = .{
            .opcode = .BIND,
            .flags = 0,
            .ioprio = 0,
            .fd = socket_fd,
            .off = addr_len,
            .addr = @intFromPtr(addr),
            .len = 0,
            .rw_flags = 0,
            .user_data = @intFromPtr(cancel_region.fiber),
            .buf_index = 0,
            .personality = 0,
            .splice_fd_in = 0,
            .addr3 = 0,
            .resv = 0,
        };
        ev.yield(null, .nothing);
        switch (cancel_region.errno()) {
            .SUCCESS => return,
            .INTR, .CANCELED => {},
            .ACCES => return error.AccessDenied,
            .ADDRINUSE => return error.AddressInUse,
            .BADF => |err| return errnoBug(err), // File descriptor used after closed.
            .INVAL => |err| return errnoBug(err), // invalid parameters
            .NOTSOCK => |err| return errnoBug(err), // invalid `sockfd`
            .AFNOSUPPORT => return error.AddressFamilyUnsupported,
            .ADDRNOTAVAIL => return error.AddressUnavailable,
            .FAULT => |err| return errnoBug(err), // invalid `addr` pointer
            .NOMEM => return error.SystemResources,
            else => |err| return unexpectedErrno(err),
        }
    }
}