mirror of
https://github.com/PCSX2/pcsx2.git
synced 2026-09-25 22:15:48 +02:00
Jake.Stine
03449cf682
* ConsoleLogger Optimization: Improved performance considerably for when the log gets spammed by EEcore or MTGS threads. DevNotes: * Added a new pxYieldToMain() method (currently implemented in Win32 only). It provides a smart way to allow passive-task worker threads to yield time to the Main Thread when important messages are pending (keyboard or mouse clicks, primarily). It also replaces the wxGetApp().Ping() stuff, which never worked anyway due to wxCommandEvents having a higher priority than native system messages. git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2253 96395faa-99c1-11dd-bbfe-3dabce05a288
85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2009 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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// ----------------------------------------------------------------------------------------
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// RecursionGuard - Basic protection against function recursion
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// ----------------------------------------------------------------------------------------
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// Thread safety note: If used in a threaded environment, you shoud use a handle to a __threadlocal
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// storage variable (protects aaginst race conditions and, in *most* cases, is more desirable
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// behavior as well.
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//
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// Rationale: wxWidgets has its own wxRecursionGuard, but it has a sloppy implementation with
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// entirely unnecessary assertion checks.
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//
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class RecursionGuard
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{
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public:
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int& Counter;
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RecursionGuard( int& counter ) : Counter( counter )
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{ ++Counter; }
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virtual ~RecursionGuard() throw()
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{ --Counter; }
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bool IsReentrant() const { return Counter > 1; }
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};
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enum PageProtectionMode
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{
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Protect_NoAccess = 0,
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Protect_ReadOnly,
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Protect_ReadWrite
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};
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//////////////////////////////////////////////////////////////////////////////////////////
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// HostSys - Namespace housing general system-level implementations relating to loading
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// plugins and allocating memory. For now, these functions are all accessed via Sys*
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// versions defined in System.h/cpp.
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//
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namespace HostSys
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{
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// Maps a block of memory for use as a recompiled code buffer.
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// The allocated block has code execution privileges.
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// Returns NULL on allocation failure.
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extern void *Mmap(uptr base, u32 size);
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// Unmaps a block allocated by SysMmap
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extern void Munmap(uptr base, u32 size);
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extern void MemProtect( void* baseaddr, size_t size, PageProtectionMode mode, bool allowExecution=false );
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extern void Munmap( void* base, u32 size );
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template< uint size >
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void MemProtectStatic( u8 (&arr)[size], PageProtectionMode mode, bool allowExecution=false )
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{
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MemProtect( arr, size, mode, allowExecution );
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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extern void InitCPUTicks();
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extern u64 GetTickFrequency();
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extern u64 GetCPUTicks();
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extern wxString GetOSVersionString();
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