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annotate src/share/vm/memory/allocation.inline.hpp @ 2831:f072013daba9
Added lookup method.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 31 May 2011 11:32:48 +0200 |
parents | bf29934d2f4f |
children | d2a62e0f25eb |
rev | line source |
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0 | 1 /* |
2250 | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP |
26 #define SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP | |
27 | |
28 #include "runtime/os.hpp" | |
29 | |
0 | 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 | |
2255 | 35 #ifndef PRODUCT |
2250 | 36 // Increments unsigned long value for statistics (not atomic on MP). |
37 inline void inc_stat_counter(volatile julong* dest, julong add_value) { | |
2255 | 38 #if defined(SPARC) || defined(X86) |
39 // Sparc and X86 have atomic jlong (8 bytes) instructions | |
2250 | 40 julong value = Atomic::load((volatile jlong*)dest); |
41 value += add_value; | |
42 Atomic::store((jlong)value, (volatile jlong*)dest); | |
2255 | 43 #else |
44 // possible word-tearing during load/store | |
45 *dest += add_value; | |
46 #endif | |
2250 | 47 } |
2255 | 48 #endif |
0 | 49 |
50 // allocate using malloc; will fail if no memory available | |
51 inline char* AllocateHeap(size_t size, const char* name = NULL) { | |
52 char* p = (char*) os::malloc(size); | |
53 #ifdef ASSERT | |
54 if (PrintMallocFree) trace_heap_malloc(size, name, p); | |
55 #else | |
56 Unused_Variable(name); | |
57 #endif | |
58 if (p == NULL) vm_exit_out_of_memory(size, name); | |
59 return p; | |
60 } | |
61 | |
62 inline char* ReallocateHeap(char *old, size_t size, const char* name = NULL) { | |
63 char* p = (char*) os::realloc(old,size); | |
64 #ifdef ASSERT | |
65 if (PrintMallocFree) trace_heap_malloc(size, name, p); | |
66 #else | |
67 Unused_Variable(name); | |
68 #endif | |
69 if (p == NULL) vm_exit_out_of_memory(size, name); | |
70 return p; | |
71 } | |
72 | |
73 inline void FreeHeap(void* p) { | |
74 #ifdef ASSERT | |
75 if (PrintMallocFree) trace_heap_free(p); | |
76 #endif | |
77 os::free(p); | |
78 } | |
1972 | 79 |
80 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP |