1/* 2Open Tracker License 3 4Terms and Conditions 5 6Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8Permission is hereby granted, free of charge, to any person obtaining a copy of 9this software and associated documentation files (the "Software"), to deal in 10the Software without restriction, including without limitation the rights to 11use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12of the Software, and to permit persons to whom the Software is furnished to do 13so, subject to the following conditions: 14 15The above copyright notice and this permission notice applies to all licensees 16and shall be included in all copies or substantial portions of the Software. 17 18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25Except as contained in this notice, the name of Be Incorporated shall not be 26used in advertising or otherwise to promote the sale, use or other dealings in 27this Software without prior written authorization from Be Incorporated. 28 29Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30of Be Incorporated in the United States and other countries. Other brand product 31names are registered trademarks or trademarks of their respective holders. 32All 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 46namespace BPrivate { 47 48class SimpleThread { 49 // this should only be used as a base class, 50 // subclass needs to add proper locking mechanism 51public: 52 SimpleThread(int32 priority = B_LOW_PRIORITY, const char* name = 0); 53 virtual ~SimpleThread(); 54 55 void Go(); 56 57private: 58 static status_t RunBinder(void*); 59 virtual void Run() = 0; 60 61protected: 62 thread_id fScanThread; 63 int32 fPriority; 64 const char* fName; 65}; 66 67 68class Thread : private SimpleThread { 69public: 70 static void Launch(FunctionObject* functor, 71 int32 priority = B_LOW_PRIORITY, const char* name = 0); 72 73private: 74 Thread(FunctionObject*, int32 priority, const char* name); 75 ~Thread(); 76 virtual void Run(); 77 78 FunctionObject* fFunctor; 79}; 80 81 82class ThreadSequence : private SimpleThread { 83public: 84 static void Launch(BObjectList<FunctionObject>*, bool async = true, 85 int32 priority = B_LOW_PRIORITY); 86 87private: 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 99template <class Param1> 100class SingleParamFunctionObjectWorkaround : public 101 FunctionObjectWithResult<status_t> { 102public: 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 115private: 116 status_t (*fFunction)(Param1); 117 Param1 fParam1; 118}; 119 120 121template <class T> 122class SimpleMemberFunctionObjectWorkaround : public 123 FunctionObjectWithResult<status_t> { 124public: 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 136private: 137 status_t (T::*fFunction)(); 138 T fOnThis; 139}; 140 141 142template <class Param1, class Param2> 143class TwoParamFunctionObjectWorkaround : public 144 FunctionObjectWithResult<status_t> { 145public: 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 159private: 160 status_t (*function)(Param1, Param2); 161 Param1 fParam1; 162 Param2 fParam2; 163}; 164 165 166template <class Param1, class Param2, class Param3> 167class ThreeParamFunctionObjectWorkaround : public 168 FunctionObjectWithResult<status_t> { 169public: 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 185private: 186 status_t (*function)(Param1, Param2, Param3); 187 Param1 fParam1; 188 Param2 fParam2; 189 Param3 fParam3; 190}; 191 192 193template <class Param1, class Param2, class Param3, class Param4> 194class FourParamFunctionObjectWorkaround : public 195 FunctionObjectWithResult<status_t> { 196public: 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 213private: 214 status_t (*function)(Param1, Param2, Param3, Param4); 215 Param1 fParam1; 216 Param2 fParam2; 217 Param3 fParam3; 218 Param4 fParam4; 219}; 220 221 222template<class Param1> 223void 224LaunchInNewThread(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 232template<class T> 233void 234LaunchInNewThread(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 242template<class Param1, class Param2> 243void 244LaunchInNewThread(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 254template<class Param1, class Param2, class Param3> 255void 256LaunchInNewThread(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 265template<class Param1, class Param2, class Param3, class Param4> 266void 267LaunchInNewThread(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 278using namespace BPrivate; 279 280#endif // __THREAD__ 281