core: Add core module for shared code
This commit also makes log4cxx dependency required
diff --git a/core/logging.cpp b/core/logging.cpp
new file mode 100644
index 0000000..08030c9
--- /dev/null
+++ b/core/logging.cpp
@@ -0,0 +1,62 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016, Regents of the University of California.
+ *
+ * This file is part of ChronoShare, a decentralized file sharing application over NDN.
+ *
+ * ChronoShare is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * ChronoShare is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License along with
+ * ChronoShare, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ChronoShare authors and contributors.
+ */
+
+#include "logging.hpp"
+
+#include <log4cxx/basicconfigurator.h>
+#include <log4cxx/consoleappender.h>
+#include <log4cxx/defaultconfigurator.h>
+#include <log4cxx/helpers/exception.h>
+#include <log4cxx/level.h>
+#include <log4cxx/logger.h>
+#include <log4cxx/patternlayout.h>
+#include <log4cxx/propertyconfigurator.h>
+
+#include <unistd.h>
+
+namespace ndn {
+namespace chronoshare {
+
+using namespace log4cxx;
+using namespace log4cxx::helpers;
+
+void
+INIT_LOGGERS()
+{
+ static bool configured = false;
+
+ if (configured)
+ return;
+
+ if (access("log4cxx.properties", R_OK) == 0)
+ PropertyConfigurator::configureAndWatch("log4cxx.properties");
+ else {
+ PatternLayoutPtr layout(new PatternLayout("%d{HH:mm:ss} %p %c{1} - %m%n"));
+ ConsoleAppenderPtr appender(new ConsoleAppender(layout));
+
+ BasicConfigurator::configure(appender);
+ Logger::getRootLogger()->setLevel(log4cxx::Level::getInfo());
+ }
+
+ configured = true;
+}
+
+} // chronoshare
+} // ndn