1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef FileThreadTask_h 32 #define FileThreadTask_h 33 34 #include "CrossThreadCopier.h" 35 #include "CrossThreadTask.h" 36 #include "FileThread.h" 37 #include <wtf/PassOwnPtr.h> 38 #include <wtf/PassRefPtr.h> 39 40 namespace WebCore { 41 42 template<typename T> 43 class FileThreadTask0 : public FileThread::Task { 44 public: 45 typedef void (T::*Method)(); 46 typedef FileThreadTask0<T> FileThreadTaskImpl; 47 48 static PassOwnPtr<FileThreadTaskImpl> create(T* instance, Method method) 49 { 50 return adoptPtr(new FileThreadTaskImpl(instance, method)); 51 } 52 53 private: 54 FileThreadTask0(T* instance, Method method) 55 : FileThread::Task(instance) 56 , m_method(method) 57 { 58 } 59 60 virtual void performTask() 61 { 62 (*static_cast<T*>(instance()).*m_method)(); 63 } 64 65 private: 66 Method m_method; 67 }; 68 69 template<typename T, typename P1, typename MP1> 70 class FileThreadTask1 : public FileThread::Task { 71 public: 72 typedef void (T::*Method)(MP1); 73 typedef FileThreadTask1<T, P1, MP1> FileThreadTaskImpl; 74 typedef typename CrossThreadTaskTraits<P1>::ParamType Param1; 75 76 static PassOwnPtr<FileThreadTaskImpl> create(T* instance, Method method, Param1 parameter1) 77 { 78 return adoptPtr(new FileThreadTaskImpl(instance, method, parameter1)); 79 } 80 81 private: 82 FileThreadTask1(T* instance, Method method, Param1 parameter1) 83 : FileThread::Task(instance) 84 , m_method(method) 85 , m_parameter1(parameter1) 86 { 87 } 88 89 virtual void performTask() 90 { 91 (*static_cast<T*>(instance()).*m_method)(m_parameter1); 92 } 93 94 private: 95 Method m_method; 96 P1 m_parameter1; 97 }; 98 99 template<typename T, typename P1, typename MP1, typename P2, typename MP2> 100 class FileThreadTask2 : public FileThread::Task { 101 public: 102 typedef void (T::*Method)(MP1, MP2); 103 typedef FileThreadTask2<T, P1, MP1, P2, MP2> FileThreadTaskImpl; 104 typedef typename CrossThreadTaskTraits<P1>::ParamType Param1; 105 typedef typename CrossThreadTaskTraits<P2>::ParamType Param2; 106 107 static PassOwnPtr<FileThreadTaskImpl> create(T* instance, Method method, Param1 parameter1, Param2 parameter2) 108 { 109 return adoptPtr(new FileThreadTaskImpl(instance, method, parameter1, parameter2)); 110 } 111 112 private: 113 FileThreadTask2(T* instance, Method method, Param1 parameter1, Param2 parameter2) 114 : FileThread::Task(instance) 115 , m_method(method) 116 , m_parameter1(parameter1) 117 , m_parameter2(parameter2) 118 { 119 } 120 121 virtual void performTask() 122 { 123 (*static_cast<T*>(instance()).*m_method)(m_parameter1, m_parameter2); 124 } 125 126 private: 127 Method m_method; 128 P1 m_parameter1; 129 P2 m_parameter2; 130 }; 131 132 template<typename T, typename P1, typename MP1, typename P2, typename MP2, typename P3, typename MP3> 133 class FileThreadTask3 : public FileThread::Task { 134 public: 135 typedef void (T::*Method)(MP1, MP2, MP3); 136 typedef FileThreadTask3<T, P1, MP1, P2, MP2, P3, MP3> FileThreadTaskImpl; 137 typedef typename CrossThreadTaskTraits<P1>::ParamType Param1; 138 typedef typename CrossThreadTaskTraits<P2>::ParamType Param2; 139 typedef typename CrossThreadTaskTraits<P3>::ParamType Param3; 140 141 static PassOwnPtr<FileThreadTaskImpl> create(T* instance, Method method, Param1 parameter1, Param2 parameter2, Param3 parameter3) 142 { 143 return adoptPtr(new FileThreadTaskImpl(instance, method, parameter1, parameter2, parameter3)); 144 } 145 146 private: 147 FileThreadTask3(T* instance, Method method, Param1 parameter1, Param2 parameter2, Param3 parameter3) 148 : FileThread::Task(instance) 149 , m_method(method) 150 , m_parameter1(parameter1) 151 , m_parameter2(parameter2) 152 , m_parameter3(parameter3) 153 { 154 } 155 156 virtual void performTask() 157 { 158 (*static_cast<T*>(instance()).*m_method)(m_parameter1, m_parameter2, m_parameter3); 159 } 160 161 private: 162 Method m_method; 163 P1 m_parameter1; 164 P2 m_parameter2; 165 P3 m_parameter3; 166 }; 167 168 template<typename T> 169 PassOwnPtr<FileThread::Task> createFileThreadTask( 170 T* const callee, 171 void (T::*method)()); 172 173 template<typename T> 174 PassOwnPtr<FileThread::Task> createFileThreadTask( 175 T* const callee, 176 void (T::*method)()) 177 { 178 return FileThreadTask0<T>::create( 179 callee, 180 method); 181 } 182 183 template<typename T, typename P1, typename MP1> 184 PassOwnPtr<FileThread::Task> createFileThreadTask( 185 T* const callee, 186 void (T::*method)(MP1), 187 const P1& parameter1) 188 { 189 return FileThreadTask1<T, typename CrossThreadCopier<P1>::Type, MP1>::create( 190 callee, 191 method, 192 CrossThreadCopier<P1>::copy(parameter1)); 193 } 194 195 template<typename T, typename P1, typename MP1, typename P2, typename MP2> 196 PassOwnPtr<FileThread::Task> createFileThreadTask( 197 T* const callee, 198 void (T::*method)(MP1, MP2), 199 const P1& parameter1, 200 const P2& parameter2) 201 { 202 return FileThreadTask2<T, typename CrossThreadCopier<P1>::Type, MP1, typename CrossThreadCopier<P2>::Type, MP2>::create( 203 callee, 204 method, 205 CrossThreadCopier<P1>::copy(parameter1), 206 CrossThreadCopier<P2>::copy(parameter2)); 207 } 208 209 template<typename T, typename P1, typename MP1, typename P2, typename MP2, typename P3, typename MP3> 210 PassOwnPtr<FileThread::Task> createFileThreadTask( 211 T* const callee, 212 void (T::*method)(MP1, MP2, MP3), 213 const P1& parameter1, 214 const P2& parameter2, 215 const P3& parameter3) 216 { 217 return FileThreadTask3<T, typename CrossThreadCopier<P1>::Type, MP1, typename CrossThreadCopier<P2>::Type, MP2, typename CrossThreadCopier<P3>::Type, MP3>::create( 218 callee, 219 method, 220 CrossThreadCopier<P1>::copy(parameter1), 221 CrossThreadCopier<P2>::copy(parameter2), 222 CrossThreadCopier<P3>::copy(parameter3)); 223 } 224 225 } // namespace WebCore 226 227 #endif // FileThreadTask_h 228