mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-12-11 13:11:47 +00:00
259f164d28
but it probably is buggy and still has a lot of warnings. The rest still has errors, i.e. you can't build a doom executable with MinGW yet
182 lines
5.9 KiB
C++
182 lines
5.9 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 BFG Edition GPL Source Code
|
|
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
|
|
|
|
Doom 3 BFG Edition Source Code 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, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 BFG Edition Source Code 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 Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
#ifndef __SYS_THREADING_H__
|
|
#define __SYS_THREADING_H__
|
|
|
|
#ifndef __TYPEINFOGEN__
|
|
|
|
/*
|
|
================================================================================================
|
|
|
|
Platform specific mutex, signal, atomic integer and memory barrier.
|
|
|
|
================================================================================================
|
|
*/
|
|
|
|
typedef CRITICAL_SECTION mutexHandle_t;
|
|
typedef HANDLE signalHandle_t;
|
|
typedef LONG interlockedInt_t;
|
|
|
|
// _ReadWriteBarrier() does not translate to any instructions but keeps the compiler
|
|
// from reordering read and write instructions across the barrier.
|
|
// MemoryBarrier() inserts and CPU instruction that keeps the CPU from reordering reads and writes.
|
|
#if defined(_MSC_VER)
|
|
#pragma intrinsic(_ReadWriteBarrier)
|
|
#define SYS_MEMORYBARRIER _ReadWriteBarrier(); MemoryBarrier()
|
|
#elif defined(__GNUC__) // FIXME: what about clang?
|
|
// according to http://en.wikipedia.org/wiki/Memory_ordering the following should be equivalent to the stuff above..
|
|
//#ifdef __sync_syncronize
|
|
#define SYS_MEMORYBARRIER asm volatile("" ::: "memory");__sync_synchronize()
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
================================================================================================
|
|
|
|
Platform specific thread local storage.
|
|
Can be used to store either a pointer or an integer.
|
|
|
|
================================================================================================
|
|
*/
|
|
|
|
|
|
class idSysThreadLocalStorage
|
|
{
|
|
public:
|
|
idSysThreadLocalStorage()
|
|
{
|
|
tlsIndex = TlsAlloc();
|
|
}
|
|
idSysThreadLocalStorage( const ptrdiff_t& val )
|
|
{
|
|
tlsIndex = TlsAlloc();
|
|
TlsSetValue( tlsIndex, ( LPVOID )val );
|
|
}
|
|
~idSysThreadLocalStorage()
|
|
{
|
|
TlsFree( tlsIndex );
|
|
}
|
|
operator ptrdiff_t()
|
|
{
|
|
return ( ptrdiff_t )TlsGetValue( tlsIndex );
|
|
}
|
|
const ptrdiff_t& operator = ( const ptrdiff_t& val )
|
|
{
|
|
TlsSetValue( tlsIndex, ( LPVOID )val );
|
|
return val;
|
|
}
|
|
DWORD tlsIndex;
|
|
};
|
|
|
|
#define ID_TLS idSysThreadLocalStorage
|
|
|
|
|
|
#endif // __TYPEINFOGEN__
|
|
|
|
/*
|
|
================================================================================================
|
|
|
|
Platform independent threading functions.
|
|
|
|
================================================================================================
|
|
*/
|
|
|
|
enum core_t
|
|
{
|
|
CORE_ANY = -1,
|
|
CORE_0A,
|
|
CORE_0B,
|
|
CORE_1A,
|
|
CORE_1B,
|
|
CORE_2A,
|
|
CORE_2B
|
|
};
|
|
|
|
typedef unsigned int ( *xthread_t )( void* );
|
|
|
|
enum xthreadPriority
|
|
{
|
|
THREAD_LOWEST,
|
|
THREAD_BELOW_NORMAL,
|
|
THREAD_NORMAL,
|
|
THREAD_ABOVE_NORMAL,
|
|
THREAD_HIGHEST
|
|
};
|
|
|
|
#define DEFAULT_THREAD_STACK_SIZE ( 256 * 1024 )
|
|
|
|
// on win32, the threadID is NOT the same as the threadHandle
|
|
uintptr_t Sys_GetCurrentThreadID();
|
|
|
|
// returns a threadHandle
|
|
uintptr_t Sys_CreateThread( xthread_t function, void* parms, xthreadPriority priority,
|
|
const char* name, core_t core, int stackSize = DEFAULT_THREAD_STACK_SIZE,
|
|
bool suspended = false );
|
|
|
|
void Sys_WaitForThread( uintptr_t threadHandle );
|
|
void Sys_DestroyThread( uintptr_t threadHandle );
|
|
void Sys_SetCurrentThreadName( const char* name );
|
|
|
|
void Sys_SignalCreate( signalHandle_t& handle, bool manualReset );
|
|
void Sys_SignalDestroy( signalHandle_t& handle );
|
|
void Sys_SignalRaise( signalHandle_t& handle );
|
|
void Sys_SignalClear( signalHandle_t& handle );
|
|
bool Sys_SignalWait( signalHandle_t& handle, int timeout );
|
|
|
|
void Sys_MutexCreate( mutexHandle_t& handle );
|
|
void Sys_MutexDestroy( mutexHandle_t& handle );
|
|
bool Sys_MutexLock( mutexHandle_t& handle, bool blocking );
|
|
void Sys_MutexUnlock( mutexHandle_t& handle );
|
|
|
|
interlockedInt_t Sys_InterlockedIncrement( interlockedInt_t& value );
|
|
interlockedInt_t Sys_InterlockedDecrement( interlockedInt_t& value );
|
|
|
|
interlockedInt_t Sys_InterlockedAdd( interlockedInt_t& value, interlockedInt_t i );
|
|
interlockedInt_t Sys_InterlockedSub( interlockedInt_t& value, interlockedInt_t i );
|
|
|
|
interlockedInt_t Sys_InterlockedExchange( interlockedInt_t& value, interlockedInt_t exchange );
|
|
interlockedInt_t Sys_InterlockedCompareExchange( interlockedInt_t& value, interlockedInt_t comparand, interlockedInt_t exchange );
|
|
|
|
void* Sys_InterlockedExchangePointer( void*& ptr, void* exchange );
|
|
void* Sys_InterlockedCompareExchangePointer( void*& ptr, void* comparand, void* exchange );
|
|
|
|
void Sys_Yield();
|
|
|
|
const int MAX_CRITICAL_SECTIONS = 4;
|
|
|
|
enum
|
|
{
|
|
CRITICAL_SECTION_ZERO = 0,
|
|
CRITICAL_SECTION_ONE,
|
|
CRITICAL_SECTION_TWO,
|
|
CRITICAL_SECTION_THREE
|
|
};
|
|
|
|
#endif // !__SYS_THREADING_H__
|