Initial commit

node_modules/mysql/lib/PoolConnection.js

@@ -0,0 +1,65 @@
+var inherits   = require('util').inherits;
+var Connection = require('./Connection');
+var Events     = require('events');
+
+module.exports = PoolConnection;
+inherits(PoolConnection, Connection);
+
+function PoolConnection(pool, options) {
+  Connection.call(this, options);
+  this._pool  = pool;
+
+  // Bind connection to pool domain
+  if (Events.usingDomains) {
+    this.domain = pool.domain;
+  }
+
+  // When a fatal error occurs the connection's protocol ends, which will cause
+  // the connection to end as well, thus we only need to watch for the end event
+  // and we will be notified of disconnects.
+  this.on('end', this._removeFromPool);
+  this.on('error', function (err) {
+    if (err.fatal) {
+      this._removeFromPool();
+    }
+  });
+}
+
+PoolConnection.prototype.release = function release() {
+  var pool = this._pool;
+
+  if (!pool || pool._closed) {
+    return undefined;
+  }
+
+  return pool.releaseConnection(this);
+};
+
+// TODO: Remove this when we are removing PoolConnection#end
+PoolConnection.prototype._realEnd = Connection.prototype.end;
+
+PoolConnection.prototype.end = function () {
+  console.warn(
+    'Calling conn.end() to release a pooled connection is ' +
+    'deprecated. In next version calling conn.end() will be ' +
+    'restored to default conn.end() behavior. Use ' +
+    'conn.release() instead.'
+  );
+  this.release();
+};
+
+PoolConnection.prototype.destroy = function () {
+  Connection.prototype.destroy.apply(this, arguments);
+  this._removeFromPool(this);
+};
+
+PoolConnection.prototype._removeFromPool = function _removeFromPool() {
+  if (!this._pool || this._pool._closed) {
+    return;
+  }
+
+  var pool = this._pool;
+  this._pool = null;
+
+  pool._purgeConnection(this);
+};