src/os/windows/vm/perfMemory_windows.cpp

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   1 /*
   2  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *


  41 
  42 typedef BOOL (WINAPI *SetSecurityDescriptorControlFnPtr)(
  43    IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
  44    IN SECURITY_DESCRIPTOR_CONTROL ControlBitsOfInterest,
  45    IN SECURITY_DESCRIPTOR_CONTROL ControlBitsToSet);
  46 
  47 // Standard Memory Implementation Details
  48 
  49 // create the PerfData memory region in standard memory.
  50 //
  51 static char* create_standard_memory(size_t size) {
  52 
  53   // allocate an aligned chuck of memory
  54   char* mapAddress = os::reserve_memory(size);
  55 
  56   if (mapAddress == NULL) {
  57     return NULL;
  58   }
  59 
  60   // commit memory
  61   if (!os::commit_memory(mapAddress, size)) {
  62     if (PrintMiscellaneous && Verbose) {
  63       warning("Could not commit PerfData memory\n");
  64     }
  65     os::release_memory(mapAddress, size);
  66     return NULL;
  67   }
  68 
  69   return mapAddress;
  70 }
  71 
  72 // delete the PerfData memory region
  73 //
  74 static void delete_standard_memory(char* addr, size_t size) {
  75 
  76   // there are no persistent external resources to cleanup for standard
  77   // memory. since DestroyJavaVM does not support unloading of the JVM,
  78   // cleanup of the memory resource is not performed. The memory will be
  79   // reclaimed by the OS upon termination of the process.
  80   //
  81   return;


   1 /*
   2  * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *


  41 
  42 typedef BOOL (WINAPI *SetSecurityDescriptorControlFnPtr)(
  43    IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
  44    IN SECURITY_DESCRIPTOR_CONTROL ControlBitsOfInterest,
  45    IN SECURITY_DESCRIPTOR_CONTROL ControlBitsToSet);
  46 
  47 // Standard Memory Implementation Details
  48 
  49 // create the PerfData memory region in standard memory.
  50 //
  51 static char* create_standard_memory(size_t size) {
  52 
  53   // allocate an aligned chuck of memory
  54   char* mapAddress = os::reserve_memory(size);
  55 
  56   if (mapAddress == NULL) {
  57     return NULL;
  58   }
  59 
  60   // commit memory
  61   if (!os::commit_memory(mapAddress, size, !ExecMem)) {
  62     if (PrintMiscellaneous && Verbose) {
  63       warning("Could not commit PerfData memory\n");
  64     }
  65     os::release_memory(mapAddress, size);
  66     return NULL;
  67   }
  68 
  69   return mapAddress;
  70 }
  71 
  72 // delete the PerfData memory region
  73 //
  74 static void delete_standard_memory(char* addr, size_t size) {
  75 
  76   // there are no persistent external resources to cleanup for standard
  77   // memory. since DestroyJavaVM does not support unloading of the JVM,
  78   // cleanup of the memory resource is not performed. The memory will be
  79   // reclaimed by the OS upon termination of the process.
  80   //
  81   return;