Mercurial > hg > truffle
diff src/share/vm/c1x/c1x_VmIds.cpp @ 1428:695451afc619
refactoring classes into separate files
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Thu, 19 Aug 2010 14:34:52 -0700 |
parents | |
children | b61a43cd1255 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/c1x/c1x_VmIds.cpp Thu Aug 19 14:34:52 2010 -0700 @@ -0,0 +1,84 @@ +/* + * Copyright 2000-2010 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +# include "incls/_precompiled.incl" +# include "incls/_c1x_VmIds.cpp.incl" + +// VmIds implementation + +GrowableArray<address>* VmIds::_stubs = NULL; +GrowableArray<jobject>* VmIds::_localHandles = NULL; + +void VmIds::initializeObjects() { + if (_stubs == NULL) { + assert(_localHandles == NULL, "inconsistent state"); + _stubs = new(ResourceObj::C_HEAP) GrowableArray<address>(64, true); + _localHandles = new(ResourceObj::C_HEAP) GrowableArray<jobject>(64, true); + } + assert(_localHandles->length() == 0, "invalid state"); +} + +void VmIds::cleanupLocalObjects() { + for (int i=0; i<_localHandles->length(); i++) { + JNIHandles::destroy_global(_localHandles->at(i)); + } + _localHandles->clear(); +} + +jlong VmIds::addStub(address stub) { + assert(!_stubs->contains(stub), "duplicate stub"); + return _stubs->append(stub) | STUB; +} + +jlong VmIds::add(Handle obj, CompilerObjectType type) { + assert(!obj.is_null(), "cannot add NULL handle"); + int idx = -1; + for (int i=0; i<_localHandles->length(); i++) + if (JNIHandles::resolve_non_null(_localHandles->at(i)) == obj()) { + idx = i; + break; + } + if (idx = -1) { + if (JavaThread::current()->thread_state() == _thread_in_vm) { + idx = _localHandles->append(JNIHandles::make_global(obj)); + } else { + VM_ENTRY_MARK; + idx = _localHandles->append(JNIHandles::make_global(obj)); + } + } + return idx | type; +} + +address VmIds::getStub(jlong id) { + assert((id & TYPE_MASK) == STUB, "wrong id type, STUB expected"); + assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _stubs->length(), "STUB index out of bounds"); + return _stubs->at(id & ~TYPE_MASK); +} + +oop VmIds::getObject(jlong id) { + assert((id & TYPE_MASK) != STUB, "wrong id type"); + assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _localHandles->length(), "index out of bounds"); + return JNIHandles::resolve_non_null(_localHandles->at(id & ~TYPE_MASK)); +} +