besterd/source/utils/message.d

46 lines
1.3 KiB
D

module utils.message;
import std.socket : Socket, SocketFlags;
import std.json : JSONValue, parseJSON, toJSON;
import utils.debugging : debugPrint;
import std.stdio : writeln;
import base.net : NetworkException;
import bmessage : bformatreceiveMessage = receiveMessage, bformatsendMessage = sendMessage;
/**
* Generalized socket receive function which will read into the
* variable pointed to by `receiveMessage` by reading from the
* socket `originator`.
*/
public void receiveMessage(Socket originator, ref JSONValue receiveMessage)
{
/* The received bytes */
byte[] receivedBytes;
if(!bformatreceiveMessage(originator, receivedBytes))
{
throw new NetworkException(originator);
}
receiveMessage = parseJSON(cast(string)receivedBytes);
}
/**
* Generalized socket send function which will send the JSON
* encoded message, `jsonMessage`, over to the client at the
* other end of the socket, `recipient`.
*
* It gets the length of `jsonMessage` and encodes a 4 byte
* message header in little-endian containing the message's
* length.
*/
public void sendMessage(Socket recipient, JSONValue jsonMessage)
{
if(!bformatsendMessage(recipient, cast(byte[])toJSON(jsonMessage)))
{
throw new NetworkException(recipient);
}
}
/* TODO: Hash message: Next-gen implementation */