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# Thread.cpp

    00001
    00002 //
    00003 // SFML - Simple and Fast Multimedia Library
    00004 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
    00005 //
    00006 // This software is provided 'as-is', without any express or implied warranty.
    00007 // In no event will the authors be held liable for any damages arising from the use of this software.
    00008 //
    00009 // Permission is granted to anyone to use this software for any purpose,
    00010 // including commercial applications, and to alter it and redistribute it freely,
    00011 // subject to the following restrictions:
    00012 //
    00013 // 1. The origin of this software must not be misrepresented;
    00014 //    you must not claim that you wrote the original software.
    00015 //    If you use this software in a product, an acknowledgment
    00016 //    in the product documentation would be appreciated but is not required.
    00017 //
    00018 // 2. Altered source versions must be plainly marked as such,
    00019 //    and must not be misrepresented as being the original software.
    00020 //
    00021 // 3. This notice may not be removed or altered from any source distribution.
    00022 //
    00024
    00026 // Headers
    00028 #include <SFML/System/Win32/Thread.hpp>
    00029 #include <process.h>
    00030 #include <iostream>
    00031
    00032
    00033 namespace sf
    00034 {
    00038 Thread::Thread() :
    00039 myHandle  (NULL),
    00040 myFunction(NULL),
    00041 myUserData(NULL)
    00042 {
    00043
    00044 }
    00045
    00046
    00050 Thread::Thread(Thread::FuncType Function, void* UserData) :
    00051 myHandle  (NULL),
    00052 myFunction(Function),
    00053 myUserData(UserData)
    00054 {
    00055
    00056 }
    00057
    00058
    00062 Thread::~Thread()
    00063 {
    00064     // Wait for the thread to finish before destroying the instance
    00065     Wait();
    00066 }
    00067
    00068
    00072 void Thread::Launch()
    00073 {
    00074     // Wait for the thread to finish, in case it was already running
    00075     Wait();
    00076
    00077     // Create the thread
    00078     myHandle = reinterpret_cast<HANDLE>(_beginthreadex(NULL, 0, &Thread::ThreadFunc, this, 0, NULL));
    00079
    00080     // Error ?
    00081     if (myHandle == NULL)
    00082         std::cerr << "Failed to create thread" << std::endl;
    00083 }
    00084
    00085
    00089 void Thread::Wait()
    00090 {
    00091     if (myHandle)
    00092     {
    00093         // Wait for the thread to finish, no timeout
    00094         WaitForSingleObject(myHandle, INFINITE);
    00095
    00096         // Don't forget to close the thread handle (__endthreadex doesn't do it)
    00097         CloseHandle(myHandle);
    00098         myHandle = NULL;
    00099     }
    00100 }
    00101
    00102
    00109 void Thread::Terminate()
    00110 {
    00111     if (myHandle)
    00112     {
    00113         TerminateThread(myHandle, 0);
    00114         myHandle = NULL;
    00115     }
    00116 }
    00117
    00118
    00122 void Thread::Run()
    00123 {
    00124     if (myFunction)
    00125         myFunction(myUserData);
    00126 }
    00127
    00128
    00132 unsigned int __stdcall Thread::ThreadFunc(void* UserData)
    00133 {
    00134     // The Thread instance is stored in the user data
    00135     Thread* ThreadInstance = reinterpret_cast<Thread*>(UserData);
    00136
    00137     // Forward to the instance
    00138     ThreadInstance->Run();
    00139
    00140     // Optional, but it is cleaner
    00141     _endthreadex(0);
    00142
    00143     return 0;
    00144 }
    00145
    00146 } // namespace sf

:: Copyright © 2007-2008 Laurent Gomila, all rights reserved :: Documentation generated by doxygen 1.5.2 ::