1 /*
   2  * Copyright (c) 1997, 2010, 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  *
  23  */
  24 
  25 #ifndef SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
  26 #define SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
  27 
  28 #include "runtime/os.hpp"
  29 
  30 // Explicit C-heap memory management
  31 
  32 void trace_heap_malloc(size_t size, const char* name, void *p);
  33 void trace_heap_free(void *p);
  34 
  35 
  36 // allocate using malloc; will fail if no memory available
  37 inline char* AllocateHeap(size_t size, const char* name = NULL) {
  38   char* p = (char*) os::malloc(size);
  39   #ifdef ASSERT
  40   if (PrintMallocFree) trace_heap_malloc(size, name, p);
  41   #else
  42   Unused_Variable(name);
  43   #endif
  44   if (p == NULL) vm_exit_out_of_memory(size, name);
  45   return p;
  46 }
  47 
  48 inline char* ReallocateHeap(char *old, size_t size, const char* name = NULL) {
  49   char* p = (char*) os::realloc(old,size);
  50   #ifdef ASSERT
  51   if (PrintMallocFree) trace_heap_malloc(size, name, p);
  52   #else
  53   Unused_Variable(name);
  54   #endif
  55   if (p == NULL) vm_exit_out_of_memory(size, name);
  56   return p;
  57 }
  58 
  59 inline void FreeHeap(void* p) {
  60   #ifdef ASSERT
  61   if (PrintMallocFree) trace_heap_free(p);
  62   #endif
  63   os::free(p);
  64 }
  65 
  66 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP