/*
Copyright (c) 2009-2013 Olivier Chafik, All Rights Reserved
This file is part of JNAerator (http://jnaerator.googlecode.com/).
JNAerator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
JNAerator 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 for more details.
You should have received a copy of the GNU General Public License
along with JNAerator. If not, see <http://www.gnu.org/licenses/>.
*/
package com.ochafik.lang.jnaerator.runtime;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.sun.jna.FunctionMapper;
import com.sun.jna.Library;
import com.sun.jna.Platform;
import com.sun.jna.NativeLibrary;
import com.sun.jna.win32.StdCallFunctionMapper;
public class MangledFunctionMapper implements FunctionMapper {
public static final Map<Object, Object> DEFAULT_OPTIONS;
static {
Map<Object, Object> m = new HashMap<Object, Object>();
FunctionMapper[] mappers =
Platform.isWindows() ?
new FunctionMapper[] { new StdCallFunctionMapper() } :
null;
m.put(Library.OPTION_FUNCTION_MAPPER, new MangledFunctionMapper(mappers));
DEFAULT_OPTIONS = Collections.unmodifiableMap(m);
}
public List<FunctionMapper> mappers;
public MangledFunctionMapper(FunctionMapper... mappers) {
if (mappers != null) {
this.mappers = Arrays.asList(mappers);
}
}
public String getFunctionName(NativeLibrary library, Method method) {
Mangling name = method.getAnnotation(Mangling.class);
if (name != null) {
for (String n : name.value()) {
try {
if (library.getGlobalVariableAddress(n) != null)
return n;
if (n.startsWith("_")) {
n = n.substring(1);
if (library.getGlobalVariableAddress(n) != null)
return n;
}
} catch (Throwable ex) {
ex = null;
}
}
}
if (mappers != null)
for (FunctionMapper mapper : mappers) {
String n = mapper.getFunctionName(library, method);
if (n != null && library.getGlobalVariableAddress(n) != null)
return n;
}
return method.getName();
}
}