exports = module.exports = function (handler) {
var socket;
assert.strictEqual(typeof handler, 'function');
socket = new zmq.socket('rep');
socket.on('message', function (message) {
message = message && message.length > 0 ? JSON.parse(message) : {};
handler(message, function (error, result) {
var response = [];
if (error) {
if (!(error instanceof Error)) {
error = new Error(error);
}
error = JSON.stringify({ error: true, name: error.name, message: error.message })
}
else {
error = '';
}
response.push(error);
if (result) {
response.push(JSON.stringify(result));
}
socket.send(response);
});
});
return socket;
};
module.exports.socket = function() {
var sock = zmq.socket.apply(zmq, arguments)
;['ZMQ_TCP_KEEPALIVE', 'ZMQ_TCP_KEEPALIVE_IDLE'].forEach(function(opt) {
if (process.env[opt]) {
try {
sock.setsockopt(zmq[opt], Number(process.env[opt]))
}
catch (err) {
log.warn('ZeroMQ library too old, no support for %s', opt)
}
}
})
return sock
}
handler(message, function (error, result) {
var response = [];
if (error) {
if (!(error instanceof Error)) {
error = new Error(error);
}
error = JSON.stringify({ error: true, name: error.name, message: error.message })
}
else {
error = '';
}
response.push(error);
if (result) {
response.push(JSON.stringify(result));
}
socket.send(response);
});