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====== DWSC control module ======


===== Message format =====

Message serializer: MessagePack

Request:
<code>
class DWSCReq {
        public $v  = 1;         // version
        public $id = 0;         // message ID
        public $at = null;      // auth token
        public $s  = "";        // source: <host>
        public $t  = "";        // target: edge | origin | <host>
        public $vh = "";        // virtual host
        public $a  = "";        // application
        public $c  = 0;         // command: DWSCCmd
        public $p  = null;      // parameter array

        public function DWSCReq() {
                $this->p = array();
        }
};
</code>

Reply:
<code>
class DWSCRep {
        public $v    = 1;       // version
        public $eno  = 0;       // error code
        public $estr = "";      // error string
        public $d    = null;    // reply data
}
</code>

Commands:
<code>
class DWSCCmd {
        const LOAD                      = 1;
        const SUSPEND                   = 2;
        const STOP                      = 3;
        const DISABLE_CONNECTION        = 4;
        const DISCONNECT_CLIENTS        = 5;
}
</code>

msgpack example:
<code>
$msg = new DWSCReq();
$msg->c = DWSCCmd::STOP;

$smsg = msgpack_serialize($msg);

echo var_export(msgpack_unserialize($smsg), true);
</code>

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