Fawkes API
Fawkes Development Version
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00001 00002 /*************************************************************************** 00003 * rrd_thread.cpp - RRD Thread 00004 * 00005 * Created: Fri Dec 17 00:32:57 2010 00006 * Copyright 2006-2010 Tim Niemueller [www.niemueller.de] 00007 * 00008 ****************************************************************************/ 00009 00010 /* This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. 00014 * 00015 * This program is distributed in the hope that it will be useful, 00016 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 * GNU Library General Public License for more details. 00019 * 00020 * Read the full text in the LICENSE.GPL file in the doc directory. 00021 */ 00022 00023 #include "rrd_example_thread.h" 00024 00025 #include <core/exceptions/system.h> 00026 #include <utils/misc/string_conversions.h> 00027 #include <utils/system/file.h> 00028 #include <plugins/rrd/aspect/rrd_manager.h> 00029 #include <cstdio> 00030 #include <cstdlib> 00031 #include <cstdarg> 00032 #include <rrd.h> 00033 00034 using namespace fawkes; 00035 00036 /** @class RRDExampleThread "rrd_example_thread.h" 00037 * RRD Example Thread. 00038 * This thread creates a simple RRD and stores random values. 00039 * 00040 * @author Tim Niemueller 00041 */ 00042 00043 /** Constructor. */ 00044 RRDExampleThread::RRDExampleThread() 00045 : Thread("RRDExampleThread", Thread::OPMODE_WAITFORWAKEUP), 00046 BlockedTimingAspect(BlockedTimingAspect::WAKEUP_HOOK_ACT) 00047 { 00048 } 00049 00050 00051 /** Destructor. */ 00052 RRDExampleThread::~RRDExampleThread() 00053 { 00054 } 00055 00056 00057 void 00058 RRDExampleThread::init() 00059 { 00060 std::vector<RRDDataSource> rrds; 00061 rrds.push_back(RRDDataSource("value", RRDDataSource::COUNTER)); 00062 __test_rrd_def = new RRDDefinition("test", rrds); 00063 rrd_manager->add_rrd(__test_rrd_def); 00064 00065 std::vector<RRDGraphDataDefinition> defs; 00066 std::vector<RRDGraphElement> els; 00067 00068 defs.push_back(RRDGraphDataDefinition("value", RRDArchive::AVERAGE, 00069 _test_rrd_def)); 00070 00071 els.push_back(RRDGraphLine("value", 1, "FF0000", "Value", false)); 00072 els.push_back(RRDGraphGPrint("value", RRDArchive::LAST, 00073 "Current\\:%8.2lf %s")); 00074 els.push_back(RRDGraphGPrint("value", RRDArchive::AVERAGE, 00075 "Average\\:%8.2lf %s")); 00076 els.push_back(RRDGraphGPrint("value", RRDArchive::MAX, 00077 "Maximum\\:%8.2lf %s\\n")); 00078 00079 __test_graph_def = new RRDGraphDefinition("testgraph", __test_rrd_def, 00080 -600, -10, 10, 00081 "Test Value", "Foo", 10, 00082 false, defs, els); 00083 00084 rrd_manager->add_graph(__test_graph_def); 00085 00086 __loop_count = 0; 00087 __counter = 0; 00088 } 00089 00090 00091 void 00092 RRDExampleThread::finalize() 00093 { 00094 rrd_manager->remove_rrd(__test_rrd_def); 00095 } 00096 00097 00098 void 00099 RRDExampleThread::loop() 00100 { 00101 __loop_count++; 00102 if (rand() > RAND_MAX/2) __counter++; 00103 if (__loop_count == 10) { 00104 try { 00105 logger->log_debug(name(), "Adding data N:%u", __counter); 00106 rrd_manager->add_data(__test_rrd_def->get_name(), "N:%u", __counter); 00107 } catch (Exception &e) { 00108 logger->log_warn(name(), "Adding data to %s failed, exception follows", 00109 __test_rrd_def->get_name()); 00110 logger->log_warn(name(), e); 00111 } 00112 __loop_count = 0; 00113 } 00114 }