Determine if only one instance is running: Difference between revisions

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@@ Line 374: / Line 374: @@
 <lang d>import std.socket;
+import std.socket;
-bool is_unique_instance() {
+bool is_unique_instance()
+{
     auto socket = new Socket(AddressFamily.UNIX, SocketType.STREAM);
     auto addr = new UnixAddress("\0/tmp/myapp.uniqueness.sock");
-    try {
+    try
+    {
         socket.bind(addr);
         return true;
+    }
-    } catch (SocketOSException e) {
+    catch (SocketOSException e)
+    {
         import core.stdc.errno : EADDRINUSE;
-			if (e.errorCode == EADDRINUSE) {
+        if (e.errorCode == EADDRINUSE)
+        {
-				log("Duplicate instance detected.");
+            log("Duplicate instance detected.");
-				return false;
+            return false;
-			}
+        }
-			else {
+        else
-				throw e;
+        {
-			}
+            throw e;
+        }
     }
 }