Zig 0.17.0-dev (Split by item)

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netSendPosix

Threaded.netSendPosix

fn netSendPosix(
    userdata: ?*anyopaque,
    socket_handle: net.Socket.Handle,
    messages: []net.OutgoingMessage,
    flags: net.SendFlags,
) struct

File

lib/std/Io/Threaded.zig:12860

Code

fn netSendPosix(
    userdata: ?*anyopaque,
    socket_handle: net.Socket.Handle,
    messages: []net.OutgoingMessage,
    flags: net.SendFlags,
) struct { ?net.Socket.SendError, usize } {
    if (!have_networking) return .{ error.NetworkDown, 0 };
    const t: *Threaded = @ptrCast(@alignCast(userdata));

    const posix_flags: u32 =
        @as(u32, if (@hasDecl(posix.MSG, "CONFIRM") and flags.confirm) posix.MSG.CONFIRM else 0) |
        @as(u32, if (@hasDecl(posix.MSG, "DONTROUTE") and flags.dont_route) posix.MSG.DONTROUTE else 0) |
        @as(u32, if (@hasDecl(posix.MSG, "EOR") and flags.eor) posix.MSG.EOR else 0) |
        @as(u32, if (@hasDecl(posix.MSG, "OOB") and flags.oob) posix.MSG.OOB else 0) |
        @as(u32, if (@hasDecl(posix.MSG, "FASTOPEN") and flags.fastopen) posix.MSG.FASTOPEN else 0) |
        posix.MSG.NOSIGNAL;

    var i: usize = 0;
    while (messages.len - i != 0) {
        if (have_sendmmsg) {
            i += netSendManyPosix(socket_handle, messages[i..], posix_flags) catch |err| return .{ err, i };
            continue;
        }
        t.netSendOnePosix(socket_handle, &messages[i], posix_flags) catch |err| return .{ err, i };
        i += 1;
    }
    return .{ null, i };
}