00001 // 00002 // Copyright (c) 2005-2008 Kenichi Watanabe. 00003 // Copyright (c) 2005-2008 Yasuhiro Watari. 00004 // Copyright (c) 2005-2008 Hironori Ichibayashi. 00005 // Copyright (c) 2008-2009 Kazuo Horio. 00006 // Copyright (c) 2009-2013 Naruki Kurata. 00007 // Copyright (c) 2005-2013 Ryota Shioya. 00008 // Copyright (c) 2005-2013 Masahiro Goshima. 00009 // 00010 // This software is provided 'as-is', without any express or implied 00011 // warranty. In no event will the authors be held liable for any damages 00012 // arising from the use of this software. 00013 // 00014 // Permission is granted to anyone to use this software for any purpose, 00015 // including commercial applications, and to alter it and redistribute it 00016 // freely, subject to the following restrictions: 00017 // 00018 // 1. The origin of this software must not be misrepresented; you must not 00019 // claim that you wrote the original software. If you use this software 00020 // in a product, an acknowledgment in the product documentation would be 00021 // appreciated but is not required. 00022 // 00023 // 2. Altered source versions must be plainly marked as such, and must not be 00024 // misrepresented as being the original software. 00025 // 00026 // 3. This notice may not be removed or altered from any source 00027 // distribution. 00028 // 00029 // 00030 00031 00032 #include <pch.h> 00033 00034 #include "Sim/Pipeline/Fetcher/Steerer/RoundRobinFetchThreadSteerer.h" 00035 #include "Sim/Thread/Thread.h" 00036 00037 using namespace Onikiri; 00038 00039 RoundRobinFetchThreadSteerer::RoundRobinFetchThreadSteerer() : 00040 m_nextThread(0) 00041 { 00042 } 00043 00044 00045 RoundRobinFetchThreadSteerer::~RoundRobinFetchThreadSteerer() 00046 { 00047 } 00048 00049 void RoundRobinFetchThreadSteerer::Initialize( InitPhase phase ) 00050 { 00051 if (phase == INIT_PRE_CONNECTION){ 00052 LoadParam(); 00053 return; 00054 } 00055 if (phase == INIT_POST_CONNECTION){ 00056 00057 CheckNodeInitialized( "thread", m_thread ); 00058 00059 } 00060 } 00061 00062 void RoundRobinFetchThreadSteerer::Finalize() 00063 { 00064 ReleaseParam(); 00065 } 00066 00067 Thread* RoundRobinFetchThreadSteerer::SteerThread(bool update) 00068 { 00069 int count = 0; 00070 int currentFetchThread = m_nextThread; 00071 bool found = true; 00072 while ( !m_thread[currentFetchThread]->IsActive() ) 00073 { 00074 currentFetchThread = (currentFetchThread + 1) % m_thread.GetSize(); 00075 count++; 00076 if( count >= m_thread.GetSize() ){ 00077 found = false; 00078 break; 00079 } 00080 } 00081 00082 if( update ) 00083 m_nextThread = (currentFetchThread + 1) % m_thread.GetSize(); 00084 00085 if( !found ){ 00086 return NULL; 00087 } 00088 00089 return m_thread[currentFetchThread]; 00090 }