1 /*

     2  * Copyright 1997-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    24 

    25 // Explicit C-heap memory management

    26 

    27 void trace_heap_malloc(size_t size, const char* name, void *p);

    28 void trace_heap_free(void *p);

    29 

    30 

    31 // allocate using malloc; will fail if no memory available

    32 inline char* AllocateHeap(size_t size, const char* name = NULL) {

    33   char* p = (char*) os::malloc(size);

    34   #ifdef ASSERT

    35   if (PrintMallocFree) trace_heap_malloc(size, name, p);

    36   #else

    37   Unused_Variable(name);

    38   #endif

    39   if (p == NULL) vm_exit_out_of_memory(size, name);

    40   return p;

    41 }

    42 

    43 inline char* ReallocateHeap(char *old, size_t size, const char* name = NULL) {

    44   char* p = (char*) os::realloc(old,size);

    45   #ifdef ASSERT

    46   if (PrintMallocFree) trace_heap_malloc(size, name, p);

    47   #else

    48   Unused_Variable(name);

    49   #endif

    50   if (p == NULL) vm_exit_out_of_memory(size, name);

    51   return p;

    52 }

    53 

    54 inline void FreeHeap(void* p) {

    55   #ifdef ASSERT

    56   if (PrintMallocFree) trace_heap_free(p);

    57   #endif

    58   os::free(p);

    59 }