windows/JackShmMem_os.h

   1 /*
   2  Copyright (C) 2004-2008 Grame
   3
   4  This program is free software; you can redistribute it and/or modify
   5  it under the terms of the GNU Lesser General Public License as published by
   6  the Free Software Foundation; either version 2.1 of the License, or
   7  (at your option) any later version.
   8
   9  This program is distributed in the hope that it will be useful,
  10  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  GNU Lesser General Public License for more details.
  13
  14  You should have received a copy of the GNU Lesser General Public License
  15  along with this program; if not, write to the Free Software
  16  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18  */
  19
  20 #ifndef __JackShmMem_WIN32__
  21 #define __JackShmMem_WIN32__
  22
  23 #ifdef __MINGW32__
  24 #include <winsock2.h>
  25 #endif
  26 #include <windows.h>
  27
  28 inline bool CHECK_MLOCK(void* ptr, size_t size)
  29 {
  30     if (!VirtualLock((ptr), (size))) {
  31         SIZE_T minWSS, maxWSS;
  32         HANDLE hProc = GetCurrentProcess();
  33         if (GetProcessWorkingSetSize(hProc, &minWSS, &maxWSS)) {
  34             const size_t increase = size + (10 * 4096);
  35             maxWSS += increase;
  36             minWSS += increase;
  37             if (!SetProcessWorkingSetSize(hProc, minWSS, maxWSS)) {
  38                 jack_error("SetProcessWorkingSetSize error = %d", GetLastError());
  39                 return false;
  40             } else if (!VirtualLock((ptr), (size))) {
  41                 jack_error("VirtualLock error = %d", GetLastError());
  42                 return false;
  43             } else {
  44                 return true;
  45             }
  46         } else {
  47             return false;
  48         }
  49     } else {
  50         return true;
  51     }
  52 }
  53
  54 #define CHECK_MUNLOCK(ptr, size) (VirtualUnlock((ptr), (size)) != 0)
  55 #define CHECK_MLOCKALL()(false)
  56 #define CHECK_MUNLOCKALL()(false)
  57
  58 #endif
  59