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author | rubidium <rubidium@openttd.org> | 2009-09-01 10:07:22 +0000 |
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committer | rubidium <rubidium@openttd.org> | 2009-09-01 10:07:22 +0000 |
commit | 07d2af338e237889ff453a3a774522b9b0021439 (patch) | |
tree | 373ccc2eecf1aa917f24008e4d25535413dc4eb2 /src/thread/thread_os2.cpp | |
parent | 5a3b2f0d02ddb7fedbca29a3e5e68dec28c887af (diff) | |
download | openttd-07d2af338e237889ff453a3a774522b9b0021439.tar.xz |
(svn r17339) -Codechange: move thread related files to their own directory (like done for video, music, sound, etc)
Diffstat (limited to 'src/thread/thread_os2.cpp')
-rw-r--r-- | src/thread/thread_os2.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/thread/thread_os2.cpp b/src/thread/thread_os2.cpp new file mode 100644 index 000000000..1145e8e41 --- /dev/null +++ b/src/thread/thread_os2.cpp @@ -0,0 +1,123 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. + * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. + */ + +/** @file thread_os2.cpp OS/2 implementation of Threads. */ + +#include "../stdafx.h" +#include "thread.h" + +#define INCL_DOS +#include <os2.h> +#include <process.h> + +/** + * OS/2 version for ThreadObject. + */ +class ThreadObject_OS2 : public ThreadObject { +private: + TID thread; ///< System thread identifier. + OTTDThreadFunc proc; ///< External thread procedure. + void *param; ///< Parameter for the external thread procedure. + bool self_destruct; ///< Free ourselves when done? + +public: + /** + * Create a thread and start it, calling proc(param). + */ + ThreadObject_OS2(OTTDThreadFunc proc, void *param, bool self_destruct) : + thread(0), + proc(proc), + param(param), + self_destruct(self_destruct) + { + thread = _beginthread(stThreadProc, NULL, 32768, this); + } + + /* virtual */ bool Exit() + { + _endthread(); + return true; + } + + /* virtual */ void Join() + { + DosWaitThread(&this->thread, DCWW_WAIT); + this->thread = 0; + } +private: + /** + * On thread creation, this function is called, which calls the real startup + * function. This to get back into the correct instance again. + */ + static void stThreadProc(void *thr) + { + ((ThreadObject_OS2 *)thr)->ThreadProc(); + } + + /** + * A new thread is created, and this function is called. Call the custom + * function of the creator of the thread. + */ + void ThreadProc() + { + /* Call the proc of the creator to continue this thread */ + try { + this->proc(this->param); + } catch (OTTDThreadExitSignal e) { + } catch (...) { + NOT_REACHED(); + } + + if (self_destruct) { + this->Exit(); + delete this; + } + } +}; + +/* static */ bool ThreadObject::New(OTTDThreadFunc proc, void *param, ThreadObject **thread) +{ + ThreadObject *to = new ThreadObject_OS2(proc, param, thread == NULL); + if (thread != NULL) *thread = to; + return true; +} + +/** + * OS/2 version of ThreadMutex. + */ +class ThreadMutex_OS2 : public ThreadMutex { +private: + HMTX mutex; + +public: + ThreadMutex_OS2() + { + DosCreateMutexSem(NULL, &mutex, 0, FALSE); + } + + /* virtual */ ~ThreadMutex_OS2() + { + DosCloseMutexSem(mutex); + } + + /* virtual */ void BeginCritical() + { + DosRequestMutexSem(mutex, (unsigned long) SEM_INDEFINITE_WAIT); + } + + /* virtual */ void EndCritical() + { + DosReleaseMutexSem(mutex); + } +}; + +/* static */ ThreadMutex *ThreadMutex::New() +{ + return new ThreadMutex_OS2(); +} |