pcsx2/common/include/Utilities/General.h

58 lines
1.9 KiB
C++

/* Pcsx2 - Pc Ps2 Emulator
* Copyright (C) 2002-2009 Pcsx2 Team
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#pragma once
enum PageProtectionMode
{
Protect_NoAccess = 0,
Protect_ReadOnly,
Protect_ReadWrite
};
//////////////////////////////////////////////////////////////////////////////////////////
// HostSys - Namespace housing general system-level implementations relating to loading
// plugins and allocating memory. For now, these functions are all accessed via Sys*
// versions defined in System.h/cpp.
//
namespace HostSys
{
// Maps a block of memory for use as a recompiled code buffer.
// The allocated block has code execution privileges.
// Returns NULL on allocation failure.
extern void *Mmap(uptr base, u32 size);
// Unmaps a block allocated by SysMmap
extern void Munmap(uptr base, u32 size);
extern void MemProtect( void* baseaddr, size_t size, PageProtectionMode mode, bool allowExecution=false );
static __forceinline void Munmap( void* base, u32 size )
{
Munmap( (uptr)base, size );
}
}
//////////////////////////////////////////////////////////////////////////////////////////
extern void InitCPUTicks();
extern u64 GetTickFrequency();
extern u64 GetCPUTicks();