[api] Sketch of Worker

lib/forever/worker.js

@@ -0,0 +1,50 @@
+var fs = require('fs'),
+    path = require('path'),
+    nssocket = require('nssocket'),
+    forever = require('../forever');
+
+function findSocket(sockPath, startAt, callback) {
+  if (typeof startAt == "function") {
+    callback = startAt;
+    startAt = null;
+  }
+
+  startAt || (startAt = 0);
+  var sock = path.join(sockPath, 'worker.' + startAt + '.sock');
+  fs.stat(sock, function (err, stat) {
+    if (err) {
+      if (err.code == 'ENOENT') {
+        return callback(null, sock)
+      }
+      return callback(err);
+    }
+    return findSocket(sockPath, ++startAt, callback);
+  });
+}
+
+var Worker = exports.Worker = function (options) {
+  this.monitor  = options.monitor;
+  this.sockPath = options.sockPath || forever.config.get('sockPath');
+
+  this._socket = null;
+};
+
+Worker.prototype.start = function (cb) {
+  var self = this;
+
+  if (this._socket) throw new Error("Can't start already started worker");
+
+  self._socket = nssocket.createServer(function (socket) {
+    socket.data(['ping'], function () {
+      socket.send(['pong']);
+    });
+  });
+
+  findSocket(self.sockPath, function (err, sock) {
+    if (err) {
+      return cb && cb(err);
+    }
+    self._socket.listen(sock, cb);
+  });
+};
+