moved winix directories to winixd subdirectory

git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1027 e52654a7-88a9-db11-a3e9-0013d4bc506e

winixd/core/loadavg.h

@@ -0,0 +1,146 @@
+/*
+ * This file is a part of Winix
+ * and is distributed under the 2-Clause BSD licence.
+ * Author: Tomasz Sowa <t.sowa@ttmath.org>
+ */
+
+/* 
+ * Copyright (c) 2008-2014, Tomasz Sowa
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+ 
+#ifndef headerfile_winix_core_loadavg
+#define headerfile_winix_core_loadavg
+
+#include <ctime>
+
+
+namespace Winix
+{
+
+
+
+
+// in seconds
+#define WINIX_LOADAVG_GRANULARITY1		2
+#define WINIX_LOADAVG_GRANULARITY5		15
+#define WINIX_LOADAVG_GRANULARITY15		45
+
+
+
+class LoadAvg
+{
+public:
+	LoadAvg();
+	~LoadAvg();
+	LoadAvg & operator=(const LoadAvg & l);
+	LoadAvg(const LoadAvg & l);
+
+	void StartRequest();
+	void StopRequest();
+
+	double LoadAvgNow(); // load average withing last WINIX_LOADAVG_GRANULARITY1 seconds
+	double LoadAvg1();
+	double LoadAvg5();
+	double LoadAvg15();
+
+	double ReqPerSecNow();
+	double ReqPerSec1();
+	double ReqPerSec5();
+	double ReqPerSec15();
+
+private:
+
+	struct Times
+	{
+		double dr; // time for the request (in seconds)
+		double dp; // time for the pause between requestes (in seconds)
+		long req;  // how many requests 
+
+		void Clear()
+		{
+			dr  = 0.0;
+			dp  = 0.0;
+			req = 0;
+		}
+
+		Times & operator=(const Times & t)
+		{
+			dr  = t.dr;
+			dp  = t.dp;
+			req = t.req;
+
+		return *this;
+		}
+	};
+
+	void CheckTimers();
+	void UpdateTimer1();
+	void UpdateTimer5();
+	void UpdateTimer15();
+
+	Times current1;
+	Times current5;
+	Times current15;
+
+	void CreateTable(size_t seconds, size_t granulatiry, Times* & tab, size_t & len);
+	void CreateTable();
+
+	void MoveTab(Times * tab, size_t len);
+	void SumTab(Times * tab, size_t len, double expected, Times & t);
+
+	void Calculate1();
+	void Calculate5();
+	void Calculate15();
+
+	bool was_stop_request;
+	timespec start_req, stop_req;
+	
+	Times * tab1;
+	size_t len1;
+
+	Times * tab5;
+	size_t len5;
+
+	Times * tab15;
+	size_t len15;
+
+	double cache_load1;
+	double cache_load5;
+	double cache_load15;
+
+	double cache_req_per_sec1;
+	double cache_req_per_sec5;
+	double cache_req_per_sec15;
+};
+
+
+
+} // namespace Winix
+
+
+
+#endif