add PISystemTime::toFrequency(), add PILog

libs/main/application/pilog.h

@@ -0,0 +1,66 @@
+/*! \file pilog.h
+ * \ingroup Application
+ * \~\brief
+ * \~english High-level log
+ * \~russian Высокоуровневый лог
+ */
+/*
+    PIP - Platform Independent Primitives
+	High-level log
+    Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef PIlog_H
+#define PIlog_H
+
+#include "pifile.h"
+#include "piiostream.h"
+#include "pithread.h"
+
+//! \ingroup Application
+//! \~\brief
+//! \~english High-level log
+//! \~russian Высокоуровневый лог
+class PIP_EXPORT PILog: public PIThread {
+	PIOBJECT_SUBCLASS(PILog, PIThread)
+
+public:
+	PILog();
+	~PILog();
+
+	PIString dir() const { return log_dir; }
+	void setDir(const PIString & d);
+
+	PISystemTime splitTime() const { return split_time; }
+	void setSplitTime(PISystemTime st) { split_time = st; }
+
+	void enqueue(const PIString & msg);
+
+private:
+	void newFile();
+	void run() override;
+
+	PIMutex log_mutex;
+	PIFile log_file;
+	PIIOTextStream log_ts;
+	PITimeMeasurer split_tm;
+	PISystemTime split_time;
+	PIString log_dir;
+	PIQueue<PIString> queue;
+	int part_number = -1;
+};
+
+#endif