send
send(socket::UDPSocket, host::IPv4, port::Integer, msg)
Send msg over socket to host:port.
Examples
- Send a message over a UDP socket to a specified host and port:
julia> using Sockets
julia> sock = UDPSocket(); # Create a UDP socket julia> host = "127.0.0.1"; # IP address of the destination host julia> port = 5000; # Port number of the destination host julia> msg = "Hello, World!"; # Message to send
julia> send(sock, host, port, msg) 13
This example sends the message "Hello, World!" over the UDP socket `sock` to the specified `host` and `port`. The function returns the number of bytes sent.
2. **Send a binary data packet to a remote server:**
```julia
julia> using Sockets
julia> sock = UDPSocket();
julia> host = "192.168.1.100";
julia> port = 1234;
julia> data = UInt8[0x12, 0x34, 0x56, 0x78];
julia> send(sock, host, port, data)
4In this example, a binary data packet represented as a UInt8 array data is sent to the specified host and port using the UDP socket sock.
- Handle errors when sending data:
julia> using Sockets
julia> sock = UDPSocket(); julia> host = "127.0.0.1"; julia> port = 1234; julia> msg = "Hello, World!";
julia> success = try send(sock, host, port, msg) true catch err println("Error: $err") false end
This example demonstrates error handling when sending data. If there is an error while sending the message, it catches the error and prints an error message. The `try-catch` block ensures that the code doesn't terminate abruptly.
Please note that the examples assume the `Sockets` package has already been imported.See Also
accept, bind, :@spawn, connect, fetch, getaddrinfo, gethostname, getipaddr, getsockname, init_worker, IPv4, IPv6, isready, issocket, kill, listen, recv, recvfrom, remotecall, remotecall_fetch, remotecall_wait, RemoteRef, send, setopt,User Contributed Notes
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