duke@435: /*
kvn@2557:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
stefank@2314: #define SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
stefank@2314: 
stefank@2314: #include "runtime/os.hpp"
stefank@2314: 
duke@435: // Explicit C-heap memory management
duke@435: 
duke@435: void trace_heap_malloc(size_t size, const char* name, void *p);
duke@435: void trace_heap_free(void *p);
duke@435: 
kvn@2562: #ifndef PRODUCT
kvn@2557: // Increments unsigned long value for statistics (not atomic on MP).
kvn@2557: inline void inc_stat_counter(volatile julong* dest, julong add_value) {
kvn@2562: #if defined(SPARC) || defined(X86)
kvn@2562:   // Sparc and X86 have atomic jlong (8 bytes) instructions
kvn@2557:   julong value = Atomic::load((volatile jlong*)dest);
kvn@2557:   value += add_value;
kvn@2557:   Atomic::store((jlong)value, (volatile jlong*)dest);
kvn@2562: #else
kvn@2562:   // possible word-tearing during load/store
kvn@2562:   *dest += add_value;
kvn@2562: #endif
kvn@2557: }
kvn@2562: #endif
duke@435: 
duke@435: // allocate using malloc; will fail if no memory available
duke@435: inline char* AllocateHeap(size_t size, const char* name = NULL) {
duke@435:   char* p = (char*) os::malloc(size);
duke@435:   #ifdef ASSERT
duke@435:   if (PrintMallocFree) trace_heap_malloc(size, name, p);
duke@435:   #else
duke@435:   Unused_Variable(name);
duke@435:   #endif
duke@435:   if (p == NULL) vm_exit_out_of_memory(size, name);
duke@435:   return p;
duke@435: }
duke@435: 
duke@435: inline char* ReallocateHeap(char *old, size_t size, const char* name = NULL) {
duke@435:   char* p = (char*) os::realloc(old,size);
duke@435:   #ifdef ASSERT
duke@435:   if (PrintMallocFree) trace_heap_malloc(size, name, p);
duke@435:   #else
duke@435:   Unused_Variable(name);
duke@435:   #endif
duke@435:   if (p == NULL) vm_exit_out_of_memory(size, name);
duke@435:   return p;
duke@435: }
duke@435: 
duke@435: inline void FreeHeap(void* p) {
duke@435:   #ifdef ASSERT
duke@435:   if (PrintMallocFree) trace_heap_free(p);
duke@435:   #endif
duke@435:   os::free(p);
duke@435: }
stefank@2314: 
stefank@2314: #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP