SDL_systhread.cpp
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- This library 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- /*
- SDL_systhread.cpp
- Epoc thread management routines for SDL
- Epoc version by Markus Mertama (w@iki.fi)
- */
- //#include <stdlib.h>
- //#include <stdio.h>
- extern "C" {
- #undef NULL
- #include "SDL_error.h"
- #include "SDL_thread.h"
- #include "SDL_systhread.h"
- };
- #include <e32std.h>
- static int object_count;
- int RunThread(TAny* data)
- {
- SDL_RunThread(data);
- return(0);
- }
- TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
- {
- return ((RThread*)(aPtr1))->Create(aName,
- RunThread,
- KDefaultStackSize,
- NULL,
- aPtr2);
- }
- int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
- {
- TBuf<16> name;
- TInt status = KErrNone;
- do
- {
- object_count++;
- name.Format(_L("SDL_%x"), object_count);
- status = aFunc(name, aPtr1, aPtr2);
- }
- while(status == KErrAlreadyExists);
- return status;
- }
- int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
- {
- RThread rthread;
- TInt status = CreateUnique(NewThread, &rthread, args);
- if (status != KErrNone)
- {
- delete(((RThread*)(thread->handle)));
- thread->handle = NULL;
- SDL_SetError("Not enough resources to create thread");
- return(-1);
- }
- rthread.Resume();
- thread->handle = rthread.Handle();
- return(0);
- }
- void SDL_SYS_SetupThread(void)
- {
- return;
- }
- Uint32 SDL_ThreadID(void)
- {
- RThread current;
- TThreadId id = current.Id();
- return id;
- }
- void SDL_SYS_WaitThread(SDL_Thread *thread)
- {
- RUndertaker taker;
- taker.Create();
- TRequestStatus status;
- taker.Logon(status, thread->handle);
- User::WaitForRequest(status);
- taker.Close();
- }
- /* WARNING: This function is really a last resort.
- * Threads should be signaled and then exit by themselves.
- * TerminateThread() doesn't perform stack and DLL cleanup.
- */
- void SDL_SYS_KillThread(SDL_Thread *thread)
- {
- RThread rthread;
- rthread.SetHandle(thread->handle);
- rthread.Kill(0);
- rthread.Close();
- }