russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
77 lines
2.8 KiB
Java
77 lines
2.8 KiB
Java
/*
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* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.internal.loader;
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import java.io.File;
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import java.util.ArrayList;
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class ClassLoaderHelper {
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private ClassLoaderHelper() {}
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/**
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* Shared objects may be loaded from .a archive object on AIX and .so may not exist.
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* This method returns false so that loading of shared library continues if
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* libname.so is not present.
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*/
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static boolean loadLibraryOnlyIfPresent() {
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return false;
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}
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/**
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* AIX implementation of JVM_LoadLibrary handles the alternate path name mapping.
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* If loading of the given library name with ".so" suffix fails, it will attempt
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* to load the library of the same name with ".a" suffix as the alternate name.
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* This method simply returns null. It could implement the alternate name
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* converting ".so" with ".a" suffix but redundant.
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*/
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static File mapAlternativeName(File lib) {
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return null;
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}
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/**
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* Parse a PATH env variable.
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*
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* Empty elements will be replaced by dot.
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*/
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static String[] parsePath(String ldPath) {
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char ps = File.pathSeparatorChar;
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ArrayList<String> paths = new ArrayList<>();
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int pathStart = 0;
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int pathEnd;
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while ((pathEnd = ldPath.indexOf(ps, pathStart)) >= 0) {
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paths.add((pathStart < pathEnd) ?
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ldPath.substring(pathStart, pathEnd) : ".");
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pathStart = pathEnd + 1;
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}
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int ldLen = ldPath.length();
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paths.add((pathStart < ldLen) ?
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ldPath.substring(pathStart, ldLen) : ".");
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return paths.toArray(new String[paths.size()]);
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}
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}
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