Jack2 1.9.8

JackShmMem_os.h

00001 /*
00002  Copyright (C) 2004-2008 Grame
00003 
00004  This program is free software; you can redistribute it and/or modify
00005  it under the terms of the GNU Lesser General Public License as published by
00006  the Free Software Foundation; either version 2.1 of the License, or
00007  (at your option) any later version.
00008 
00009  This program is distributed in the hope that it will be useful,
00010  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  GNU Lesser General Public License for more details.
00013 
00014  You should have received a copy of the GNU Lesser General Public License
00015  along with this program; if not, write to the Free Software
00016  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 
00018  */
00019 
00020 #ifndef __JackShmMem_WIN32__
00021 #define __JackShmMem_WIN32__
00022 
00023 #include <windows.h>
00024 
00025 inline bool CHECK_MLOCK(void* ptr, size_t size)
00026 {
00027     if (!VirtualLock((ptr), (size))) {
00028         SIZE_T minWSS, maxWSS;
00029         HANDLE hProc = GetCurrentProcess();
00030         if (GetProcessWorkingSetSize(hProc, &minWSS, &maxWSS)) {
00031             const size_t increase = size + (10 * 4096);
00032             maxWSS += increase;
00033             minWSS += increase;
00034             if (!SetProcessWorkingSetSize(hProc, minWSS, maxWSS)) {
00035                 jack_error("SetProcessWorkingSetSize error = %d", GetLastError());
00036                 return false;
00037             } else if (!VirtualLock((ptr), (size))) {
00038                 jack_error("VirtualLock error = %d", GetLastError());
00039                 return false;
00040             } else {
00041                 return true;
00042             }
00043         } else {
00044             return false;
00045         }
00046     } else {
00047         return true;
00048     }
00049 }
00050 
00051 #define CHECK_MUNLOCK(ptr, size) (VirtualUnlock((ptr), (size)) != 0)
00052 #define CHECK_MLOCKALL()(false)
00053 #define CHECK_MUNLOCKALL()(false)
00054 
00055 #endif
00056