[seiscomp, scanloc] Install, add .gitignore

include/seiscomp/logging/filerotator.h

@@ -0,0 +1,81 @@
+/***************************************************************************
+ * Copyright (C) gempa GmbH                                                *
+ * All rights reserved.                                                    *
+ * Contact: gempa GmbH (seiscomp-dev@gempa.de)                             *
+ *                                                                         *
+ * GNU Affero General Public License Usage                                 *
+ * This file may be used under the terms of the GNU Affero                 *
+ * Public License version 3.0 as published by the Free Software Foundation *
+ * and appearing in the file LICENSE included in the packaging of this     *
+ * file. Please review the following information to ensure the GNU Affero  *
+ * Public License version 3.0 requirements will be met:                    *
+ * https://www.gnu.org/licenses/agpl-3.0.html.                             *
+ *                                                                         *
+ * Other Usage                                                             *
+ * Alternatively, this file may be used in accordance with the terms and   *
+ * conditions contained in a signed written agreement between you and      *
+ * gempa GmbH.                                                             *
+ ***************************************************************************/
+
+
+#ifndef SC_LOGGING_FILEROTATOR_H
+#define SC_LOGGING_FILEROTATOR_H
+
+
+#include <seiscomp/logging/file.h>
+#include <mutex>
+
+
+namespace Seiscomp {
+namespace Logging {
+
+
+class SC_SYSTEM_CORE_API FileRotatorOutput : public FileOutput {
+	public:
+		FileRotatorOutput(int timeSpan = 60*60*24, int historySize = 7,
+		                  int maxFileSize = 100*1024*1024);
+		/**
+		 * Creates a new FileRotatorOutput instance
+		 * @param filename The filename to log to
+		 * @param timeSpan The timespan in seconds for the log time before rotating
+		 * @param count The number of historic files to store
+		 */
+		FileRotatorOutput(const char* filename, int timeSpan = 60*60*24,
+		                  int historySize = 7, int maxFileSize = 100*1024*1024);
+
+		bool open(const char* filename);
+
+	protected:
+		/** Callback method for receiving log messages */
+		void log(const char* channelName,
+		         LogLevel level,
+		         const char* msg,
+		         time_t time);
+
+	private:
+		void rotateLogs();
+		void removeLog(int index);
+		void renameLog(int oldIndex, int newIndex);
+
+
+	protected:
+		//! time span to keep one log
+		int _timeSpan;
+
+		//! number of log files to keep
+		int _historySize;
+
+		//! maximum file size of a log file
+		int _maxFileSize;
+
+		//! last log file written to
+		int _lastInterval;
+
+		std::mutex outputMutex;
+};
+
+
+}
+}
+
+#endif