00001 // [License] 00002 // The Ariba-Underlay Copyright 00003 // 00004 // Copyright (c) 2008-2009, Institute of Telematics, Universität Karlsruhe (TH) 00005 // 00006 // Institute of Telematics 00007 // Universität Karlsruhe (TH) 00008 // Zirkel 2, 76128 Karlsruhe 00009 // Germany 00010 // 00011 // Redistribution and use in source and binary forms, with or without 00012 // modification, are permitted provided that the following conditions are 00013 // met: 00014 // 00015 // 1. Redistributions of source code must retain the above copyright 00016 // notice, this list of conditions and the following disclaimer. 00017 // 2. Redistributions in binary form must reproduce the above copyright 00018 // notice, this list of conditions and the following disclaimer in the 00019 // documentation and/or other materials provided with the distribution. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND 00022 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00023 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00024 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR 00025 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00026 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00027 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00033 // The views and conclusions contained in the software and documentation 00034 // are those of the authors and should not be interpreted as representing 00035 // official policies, either expressed or implied, of the Institute of 00036 // Telematics. 00037 // [License] 00038 00039 #ifndef __PATHLOAD_MEASUREMENT_H 00040 #define __PATHLOAD_MEASUREMENT_H 00041 00042 #include <unistd.h> 00043 #include <signal.h> 00044 #include <fcntl.h> 00045 #include <sys/wait.h> 00046 #include <boost/utility.hpp> 00047 #include "ariba/utility/logging/Logging.h" 00048 #include "ariba/utility/types/NodeID.h" 00049 #include "ariba/utility/system/BlockingMethod.h" 00050 #include "ariba/communication/EndpointDescriptor.h" 00051 #include "ariba/overlay/BaseOverlay.h" 00052 00053 using ariba::utility::NodeID; 00054 using ariba::utility::BlockingMethod; 00055 using ariba::communication::EndpointDescriptor; 00056 using ariba::overlay::BaseOverlay; 00057 00058 namespace ariba { 00059 namespace utility { 00060 00061 //************************************************* 00062 00063 class PathloadMeasurementListener { 00064 friend class PathloadMeasurement; 00065 protected: 00066 // mbps hols the MBit/s as floating point and -1 if the 00067 // measurement was triggered by two nodes on our local machines 00068 virtual void onMeasurement( NodeID node, double mbps ) = 0; 00069 }; 00070 00071 //************************************************* 00072 00073 class PathloadMeasurement : private boost::noncopyable, public BlockingMethod { 00074 use_logging_h( PathloadMeasurement ); 00075 private: 00076 volatile bool running; 00077 PathloadMeasurementListener* listener; 00078 00079 double resultMbps; 00080 NodeID resultNode; 00081 BaseOverlay* baseoverlay; 00082 pid_t serverpid; 00083 00084 protected: 00085 PathloadMeasurement(BaseOverlay* _overlay); 00086 virtual ~PathloadMeasurement(); 00087 00088 virtual void dispatchFunction(); 00089 virtual void blockingFunction(); 00090 00091 public: 00092 static PathloadMeasurement& instance(BaseOverlay* _overlay = NULL) { 00093 static PathloadMeasurement the_inst( _overlay ); 00094 return the_inst; 00095 } 00096 00097 void measure( const NodeID& destnode, PathloadMeasurementListener* _listener ); 00098 }; 00099 00100 //************************************************* 00101 00102 }} // namespace ariba, utility 00103 00104 #endif // __PATHLOAD_MEASUREMENT_H