01: /* Licensed to the Apache Software Foundation (ASF) under one or more
02: * contributor license agreements. See the NOTICE file distributed with
03: * this work for additional information regarding copyright ownership.
04: * The ASF licenses this file to You under the Apache License, Version 2.0
05: * (the "License"); you may not use this file except in compliance with
06: * the License. You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.apache.harmony.luni.platform;
17:
18: public class MappedPlatformAddress extends PlatformAddress {
19:
20: MappedPlatformAddress(long address, long size) {
21: super (address, size);
22: }
23:
24: public final void mmapLoad() {
25: memorySpy.rangeCheck(this , 0, (int) size * SIZEOF_JBYTE);
26: osMemory.load(osaddr, size);
27: }
28:
29: public final boolean mmapIsLoaded() {
30: memorySpy.rangeCheck(this , 0, (int) size * SIZEOF_JBYTE);
31: return osMemory.isLoaded(osaddr, size);
32: }
33:
34: public final void mmapFlush() {
35: memorySpy.rangeCheck(this , 0, (int) size * SIZEOF_JBYTE);
36: osMemory.flush(osaddr, size);
37: }
38:
39: public final void free() {
40: if (memorySpy.free(this )) {
41: osMemory.unmap(osaddr, size);
42: }
43: }
44:
45: public PlatformAddress duplicate() {
46: return PlatformAddressFactory.mapOn(osaddr, size);
47: }
48:
49: public final PlatformAddress offsetBytes(int offset) {
50: return PlatformAddressFactory.mapOn(osaddr + offset, size
51: - offset);
52: }
53:
54: public final PlatformAddress offsetBytes(long offset) {
55: return PlatformAddressFactory.mapOn(osaddr + offset, size
56: - offset);
57: }
58: }
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