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comparison src/share/vm/graal/graalVmIds.cpp @ 2890:c23d45daff9b

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Renamed cpp/hpp file directory.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 08 Jun 2011 13:40:25 +0200
parents src/share/vm/c1x/graalVmIds.cpp@2fb867285938
children 75a99b4f1c98
comparison
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2889:2fb867285938 2890:c23d45daff9b
1 /*
2 * Copyright (c) 2011, 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 #include "precompiled.hpp"
25 #include "c1x/c1x_VmIds.hpp"
26 #include "ci/ciUtilities.hpp"
27
28 // VmIds implementation
29
30 GrowableArray<address>* VmIds::_stubs = NULL;
31 GrowableArray<jobject>* VmIds::_localHandles = NULL;
32
33
34 void VmIds::initializeObjects() {
35 if (_stubs == NULL) {
36 assert(_localHandles == NULL, "inconsistent state");
37 _stubs = new (ResourceObj::C_HEAP) GrowableArray<address> (64, true);
38 _localHandles = new (ResourceObj::C_HEAP) GrowableArray<jobject> (64, true);
39 }
40 assert(_localHandles->length() == 0, "invalid state");
41 }
42
43 void VmIds::cleanupLocalObjects() {
44 for (int i = 0; i < _localHandles->length(); i++) {
45 JNIHandles::destroy_global(_localHandles->at(i));
46 }
47 _localHandles->clear();
48 }
49
50 jlong VmIds::addStub(address stub) {
51 assert(!_stubs->contains(stub), "duplicate stub");
52 return _stubs->append(stub) | STUB;
53 }
54
55 jlong VmIds::add(Handle obj, jlong type) {
56 assert(!obj.is_null(), "cannot add NULL handle");
57 int idx = -1;
58 for (int i = 0; i < _localHandles->length(); i++)
59 if (JNIHandles::resolve_non_null(_localHandles->at(i)) == obj()) {
60 idx = i;
61 break;
62 }
63 if (idx == -1) {
64 if (JavaThread::current()->thread_state() == _thread_in_vm) {
65 idx = _localHandles->append(JNIHandles::make_global(obj));
66 } else {
67 VM_ENTRY_MARK;
68 idx = _localHandles->append(JNIHandles::make_global(obj));
69 }
70 }
71 return idx | type;
72 }
73
74 address VmIds::getStub(jlong id) {
75 assert((id & TYPE_MASK) == STUB, "wrong id type, STUB expected");
76 assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _stubs->length(), "STUB index out of bounds");
77 return _stubs->at(id & ~TYPE_MASK);
78 }
79
80 oop VmIds::getObject(jlong id) {
81 assert((id & TYPE_MASK) != STUB, "wrong id type");
82 assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _localHandles->length(), "index out of bounds");
83 return JNIHandles::resolve_non_null(_localHandles->at(id & ~TYPE_MASK));
84 }
85