macos : listen udp error

[eyun-tv]

code is here https://github.com/eyun-tv/zig

when listen udp, failed

same code , when listen tcp, success

error code

+ zig build
+ exec ./zig-out/bin/zig
unexpected errno: 102
/usr/local/Cellar/zig/0.9.0/lib/zig/std/debug.zig:458:19: 0x10725d559 in std.debug.writeCurrentStackTrace (zig)
    while (it.next()) |return_address| {
                  ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/debug.zig:115:31: 0x10725ab26 in std.debug.dumpCurrentStackTrace (zig)
        writeCurrentStackTrace(stderr, debug_info, detectTTYConfig(), start_addr) catch |err| {
                              ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/os.zig:4985:40: 0x10725b1dd in std.os.unexpectedErrno (zig)
        std.debug.dumpCurrentStackTrace(null);
                                       ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/os.zig:3206:49: 0x10725be11 in std.os.listen (zig)
            else => |err| return unexpectedErrno(err),
                                                ^
/Users/z/rmw/zig/.zigmod/deps/git/git@github.com:MasterQ32/zig-network/network.zig:357:22: 0x107259ff5 in .network.Socket.listen (zig)
        try listen_fn(self.internal, 0);
                     ^
/Users/z/rmw/zig/src/main.zig:16:18: 0x107259c28 in main (zig)
    try sk.listen();
                 ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/start.zig:553:37: 0x10725e0a8 in std.start.callMain (zig)
            const result = root.main() catch |err| {
                                    ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/start.zig:495:12: 0x10725a507 in std.start.callMainWithArgs (zig)
    return @call(.{ .modifier = .always_inline }, callMain, .{});
           ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/start.zig:460:12: 0x10725a445 in std.start.main (zig)
    return @call(.{ .modifier = .always_inline }, callMainWithArgs, .{ @intCast(usize, c_argc), c_argv, envp });
           ^
???:?:?: 0x108dda4fd in ??? (???)
???:?:?: 0x0 in ??? (???)
error: Unexpected
/usr/local/Cellar/zig/0.9.0/lib/zig/std/os.zig:4987:5: 0x10725b1ec in std.os.unexpectedErrno (zig)
    return error.Unexpected;
    ^
/usr/local/Cellar/zig/0.9.0/lib/zig/std/os.zig:3206:27: 0x10725be1e in std.os.listen (zig)
            else => |err| return unexpectedErrno(err),
                          ^
/Users/z/rmw/zig/.zigmod/deps/git/git@github.com:MasterQ32/zig-network/network.zig:357:9: 0x10725a014 in .network.Socket.listen (zig)
        try listen_fn(self.internal, 0);
        ^
/Users/z/rmw/zig/src/main.zig:16:5: 0x107259c64 in main (zig)
    try sk.listen();

[ikskuh]

UDP cannot listen in the sense of a tcp socket. Just bind the socket and you're done, you are now able to receive messages

[eyun-tv]

thanks , I remove listen , it works

const std = @import("std");
const print = @import("std").debug.print;

const network = @import("network");

pub fn main() anyerror!void {
    try network.init();
    defer network.deinit();

    const sk = try network.Socket.create(.ipv4, .udp);
    defer sk.close();

    try sk.bindToPort(0);
    print("listen on udp://{}", .{sk.getLocalEndPoint()});
}