Mercurial > hg > graal-compiler
diff agent/src/share/classes/sun/jvm/hotspot/livejvm/CStringAccessor.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/livejvm/CStringAccessor.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,69 @@ +/* + * Copyright 2002 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. + * + */ + +package sun.jvm.hotspot.livejvm; + +import java.io.UnsupportedEncodingException; +import sun.jvm.hotspot.debugger.*; + +class CStringAccessor { + private Address addr; + private int bufLen; + + CStringAccessor(Address addr, int bufLen) { + this.addr = addr; + this.bufLen = bufLen; + } + + String getValue() throws DebuggerException { + int len = 0; + while ((addr.getCIntegerAt(len, 1, true) != 0) && (len < bufLen)) { + ++len; + } + byte[] res = new byte[len]; + for (int i = 0; i < len; i++) { + res[i] = (byte) addr.getCIntegerAt(i, 1, true); + } + try { + return new String(res, "US-ASCII"); + } catch (UnsupportedEncodingException e) { + throw new DebuggerException("Unable to use US-ASCII encoding"); + } + } + + void setValue(String value) throws DebuggerException { + try { + byte[] data = value.getBytes("US-ASCII"); + if (data.length >= bufLen) { + throw new DebuggerException("String too long"); + } + for (int i = 0; i < data.length; i++) { + addr.setCIntegerAt(i, 1, data[i]); + } + addr.setCIntegerAt(data.length, 1, 0); + } catch (UnsupportedEncodingException e) { + throw new DebuggerException("Unable to use US-ASCII encoding"); + } + } +}