SDL_systhread.cpp
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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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
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slouken@libsdl.org
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*/
/*
SDL_systhread.cpp
Epoc thread management routines for SDL
Epoc version by Markus Mertama (w@iki.fi)
*/
extern "C" {
#undef NULL
#include "SDL_error.h"
#include "SDL_thread.h"
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#include "../SDL_systhread.h"
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};
#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();
}