1 /* 2 Open Tracker License 3 4 Terms and Conditions 5 6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy of 9 this software and associated documentation files (the "Software"), to deal in 10 the Software without restriction, including without limitation the rights to 11 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12 of the Software, and to permit persons to whom the Software is furnished to do 13 so, subject to the following conditions: 14 15 The above copyright notice and this permission notice applies to all licensees 16 and shall be included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25 Except as contained in this notice, the name of Be Incorporated shall not be 26 used in advertising or otherwise to promote the sale, use or other dealings in 27 this Software without prior written authorization from Be Incorporated. 28 29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30 of Be Incorporated in the United States and other countries. Other brand product 31 names are registered trademarks or trademarks of their respective holders. 32 All rights reserved. 33 */ 34 #ifndef __THREAD__ 35 #define __THREAD__ 36 37 38 #include <Debug.h> 39 #include <Looper.h> 40 #include <OS.h> 41 42 #include "ObjectList.h" 43 #include "FunctionObject.h" 44 45 46 namespace BPrivate { 47 48 class SimpleThread { 49 // this should only be used as a base class, 50 // subclass needs to add proper locking mechanism 51 public: 52 SimpleThread(int32 priority = B_LOW_PRIORITY, const char* name = 0); 53 virtual ~SimpleThread(); 54 55 void Go(); 56 57 private: 58 static status_t RunBinder(void*); 59 virtual void Run() = 0; 60 61 protected: 62 thread_id fScanThread; 63 int32 fPriority; 64 const char* fName; 65 }; 66 67 68 class Thread : private SimpleThread { 69 public: 70 static void Launch(FunctionObject* functor, 71 int32 priority = B_LOW_PRIORITY, const char* name = 0); 72 73 private: 74 Thread(FunctionObject*, int32 priority, const char* name); 75 ~Thread(); 76 virtual void Run(); 77 78 FunctionObject* fFunctor; 79 }; 80 81 82 class ThreadSequence : private SimpleThread { 83 public: 84 static void Launch(BObjectList<FunctionObject>*, bool async = true, 85 int32 priority = B_LOW_PRIORITY); 86 87 private: 88 ThreadSequence(BObjectList<FunctionObject>*, int32 priority); 89 ~ThreadSequence(); 90 91 virtual void Run(); 92 static void Run(BObjectList<FunctionObject>*list); 93 94 BObjectList<FunctionObject>* fFunctorList; 95 }; 96 97 98 // would use SingleParamFunctionObjectWithResult, except mwcc won't handle this 99 template <class Param1> 100 class SingleParamFunctionObjectWorkaround : public 101 FunctionObjectWithResult<status_t> { 102 public: 103 SingleParamFunctionObjectWorkaround( 104 status_t (*function)(Param1), Param1 param1) 105 : fFunction(function), 106 fParam1(param1) 107 { 108 } 109 110 virtual void operator()() 111 { (fFunction)(fParam1); } 112 113 virtual ulong Size() const { return sizeof(*this); } 114 115 private: 116 status_t (*fFunction)(Param1); 117 Param1 fParam1; 118 }; 119 120 121 template <class T> 122 class SimpleMemberFunctionObjectWorkaround : public 123 FunctionObjectWithResult<status_t> { 124 public: 125 SimpleMemberFunctionObjectWorkaround(status_t (T::*function)(), T* onThis) 126 : fFunction(function), 127 fOnThis(onThis) 128 { 129 } 130 131 virtual void operator()() 132 { (fOnThis->*fFunction)(); } 133 134 virtual ulong Size() const { return sizeof(*this); } 135 136 private: 137 status_t (T::*fFunction)(); 138 T fOnThis; 139 }; 140 141 142 template <class Param1, class Param2> 143 class TwoParamFunctionObjectWorkaround : public 144 FunctionObjectWithResult<status_t> { 145 public: 146 TwoParamFunctionObjectWorkaround(status_t (*callThis)(Param1, Param2), 147 Param1 param1, Param2 param2) 148 : function(callThis), 149 fParam1(param1), 150 fParam2(param2) 151 { 152 } 153 154 virtual void operator()() 155 { (function)(fParam1, fParam2); } 156 157 virtual uint32 Size() const { return sizeof(*this); } 158 159 private: 160 status_t (*function)(Param1, Param2); 161 Param1 fParam1; 162 Param2 fParam2; 163 }; 164 165 166 template <class Param1, class Param2, class Param3> 167 class ThreeParamFunctionObjectWorkaround : public 168 FunctionObjectWithResult<status_t> { 169 public: 170 ThreeParamFunctionObjectWorkaround( 171 status_t (*callThis)(Param1, Param2, Param3), 172 Param1 param1, Param2 param2, Param3 param3) 173 : function(callThis), 174 fParam1(param1), 175 fParam2(param2), 176 fParam3(param3) 177 { 178 } 179 180 virtual void operator()() 181 { (function)(fParam1, fParam2, fParam3); } 182 183 virtual uint32 Size() const { return sizeof(*this); } 184 185 private: 186 status_t (*function)(Param1, Param2, Param3); 187 Param1 fParam1; 188 Param2 fParam2; 189 Param3 fParam3; 190 }; 191 192 193 template <class Param1, class Param2, class Param3, class Param4> 194 class FourParamFunctionObjectWorkaround : public 195 FunctionObjectWithResult<status_t> { 196 public: 197 FourParamFunctionObjectWorkaround( 198 status_t (*callThis)(Param1, Param2, Param3, Param4), 199 Param1 param1, Param2 param2, Param3 param3, Param4 param4) 200 : function(callThis), 201 fParam1(param1), 202 fParam2(param2), 203 fParam3(param3), 204 fParam4(param4) 205 { 206 } 207 208 virtual void operator()() 209 { (function)(fParam1, fParam2, fParam3, fParam4); } 210 211 virtual uint32 Size() const { return sizeof(*this); } 212 213 private: 214 status_t (*function)(Param1, Param2, Param3, Param4); 215 Param1 fParam1; 216 Param2 fParam2; 217 Param3 fParam3; 218 Param4 fParam4; 219 }; 220 221 222 template<class Param1> 223 void 224 LaunchInNewThread(const char* name, int32 priority, status_t (*func)(Param1), 225 Param1 p1) 226 { 227 Thread::Launch(new SingleParamFunctionObjectWorkaround<Param1>(func, p1), 228 priority, name); 229 } 230 231 232 template<class T> 233 void 234 LaunchInNewThread(const char* name, int32 priority, status_t (T::*function)(), 235 T* onThis) 236 { 237 Thread::Launch(new SimpleMemberFunctionObjectWorkaround<T>(function, 238 onThis), priority, name); 239 } 240 241 242 template<class Param1, class Param2> 243 void 244 LaunchInNewThread(const char* name, int32 priority, 245 status_t (*func)(Param1, Param2), 246 Param1 p1, Param2 p2) 247 { 248 Thread::Launch(new 249 TwoParamFunctionObjectWorkaround<Param1, Param2>(func, p1, p2), 250 priority, name); 251 } 252 253 254 template<class Param1, class Param2, class Param3> 255 void 256 LaunchInNewThread(const char* name, int32 priority, 257 status_t (*func)(Param1, Param2, Param3), 258 Param1 p1, Param2 p2, Param3 p3) 259 { 260 Thread::Launch(new ThreeParamFunctionObjectWorkaround<Param1, Param2, 261 Param3>(func, p1, p2, p3), priority, name); 262 } 263 264 265 template<class Param1, class Param2, class Param3, class Param4> 266 void 267 LaunchInNewThread(const char* name, int32 priority, 268 status_t (*func)(Param1, Param2, Param3, Param4), 269 Param1 p1, Param2 p2, Param3 p3, Param4 p4) 270 { 271 Thread::Launch(new FourParamFunctionObjectWorkaround<Param1, Param2, 272 Param3, Param4>(func, p1, p2, p3, p4), priority, name); 273 } 274 275 276 } // namespace BPrivate 277 278 using namespace BPrivate; 279 280 #endif // __THREAD__ 281