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comparison src/share/vm/c1x/c1x_VmIds.cpp @ 1428:695451afc619

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refactoring classes into separate files
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 19 Aug 2010 14:34:52 -0700
parents
children b61a43cd1255
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1427:149b1d2316de 1428:695451afc619
1 /*
2 * Copyright 2000-2010 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 # include "incls/_precompiled.incl"
26 # include "incls/_c1x_VmIds.cpp.incl"
27
28 // VmIds implementation
29
30 GrowableArray<address>* VmIds::_stubs = NULL;
31 GrowableArray<jobject>* VmIds::_localHandles = NULL;
32
33 void VmIds::initializeObjects() {
34 if (_stubs == NULL) {
35 assert(_localHandles == NULL, "inconsistent state");
36 _stubs = new(ResourceObj::C_HEAP) GrowableArray<address>(64, true);
37 _localHandles = new(ResourceObj::C_HEAP) GrowableArray<jobject>(64, true);
38 }
39 assert(_localHandles->length() == 0, "invalid state");
40 }
41
42 void VmIds::cleanupLocalObjects() {
43 for (int i=0; i<_localHandles->length(); i++) {
44 JNIHandles::destroy_global(_localHandles->at(i));
45 }
46 _localHandles->clear();
47 }
48
49 jlong VmIds::addStub(address stub) {
50 assert(!_stubs->contains(stub), "duplicate stub");
51 return _stubs->append(stub) | STUB;
52 }
53
54 jlong VmIds::add(Handle obj, CompilerObjectType type) {
55 assert(!obj.is_null(), "cannot add NULL handle");
56 int idx = -1;
57 for (int i=0; i<_localHandles->length(); i++)
58 if (JNIHandles::resolve_non_null(_localHandles->at(i)) == obj()) {
59 idx = i;
60 break;
61 }
62 if (idx = -1) {
63 if (JavaThread::current()->thread_state() == _thread_in_vm) {
64 idx = _localHandles->append(JNIHandles::make_global(obj));
65 } else {
66 VM_ENTRY_MARK;
67 idx = _localHandles->append(JNIHandles::make_global(obj));
68 }
69 }
70 return idx | type;
71 }
72
73 address VmIds::getStub(jlong id) {
74 assert((id & TYPE_MASK) == STUB, "wrong id type, STUB expected");
75 assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _stubs->length(), "STUB index out of bounds");
76 return _stubs->at(id & ~TYPE_MASK);
77 }
78
79 oop VmIds::getObject(jlong id) {
80 assert((id & TYPE_MASK) != STUB, "wrong id type");
81 assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _localHandles->length(), "index out of bounds");
82 return JNIHandles::resolve_non_null(_localHandles->at(id & ~TYPE_MASK));
83 }
84