/*
* @(#)CNIHeader.java 1.12 06/10/10
*
* Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program 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 program 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 at /legal/license.txt).
*
* 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 or visit www.sun.com if you need additional
* information or have any questions.
*
*/
package runtime;
import consts.Const;
import jcc.Util;
import util.*;
import components.*;
import vm.*;
import java.io.PrintStream;
import java.util.Enumeration;
import java.util.Vector;
import java.util.Hashtable;
public class CNIHeader extends HeaderDump{
public CNIHeader( ){
super( '_' );
}
private boolean
generateNatives( MethodInfo methods[], boolean cplusplusguard ){
if ( methods == null ) return false;
boolean anyMethods = false;
for ( int i =0; i < methods.length; i++ ){
MethodInfo m = methods[i];
if ( (m.access&Const.ACC_NATIVE) == 0 ) continue;
if ( cplusplusguard && ! anyMethods ){
o.println("#ifdef __cplusplus\nextern \"C\"{\n#endif");
anyMethods = true;
}
String methodsig = m.type.string;
o.println("/*");
o.println(" * Class: "+className);
o.println(" * Method: "+m.name.string);
o.println(" * Signature: "+methodsig);
o.println(" */");
//
// decide whether to use long name or short.
// we use the long name only if we find another
// native method with the same short name.
//
String nameParams = null;
for ( int j =0; j < methods.length; j++ ){
MethodInfo other = methods[j];
if ( (other.access&Const.ACC_NATIVE) == 0 ) continue;
if ( other == m ) continue; // don't compare with self!
if ( other.name.string.equals( m.name.string ) ){
nameParams = methodsig;
break;
}
}
// print return type and name.
o.print("CNIEXPORT CNINativeMethod ");
String name =
Util.convertToJNIName( className, m.name.string, nameParams );
name = "CNI" + name.substring(5);
o.println( name + ";");
}
if ( cplusplusguard && anyMethods ){
o.println("#ifdef __cplusplus\n}\n#endif");
return true;
}
return false;
}
private void prolog(){
o.println("/* DO NOT EDIT THIS FILE - it is machine generated */\n" +
"#include \"javavm/include/cni.h\"");
o.println("/* Header for class "+className+" */\n");
String includeName = "_CVM_CNI"+strsub(className,CDelim);
o.println("#ifndef "+includeName);
o.println("#define "+includeName);
}
private void epilog(){
o.println("#endif");
}
synchronized public boolean
dumpHeader( ClassInfo c, PrintStream outfile ){
boolean didWork;
o = outfile;
className = c.className;
prolog();
didWork = generateConsts( Util.convertToClassName( c.className ), c.fields );
didWork |= generateNatives( c.methods, true );
epilog();
return didWork;
}
synchronized public boolean
dumpExternals( ClassInfo c, PrintStream outfile ){
boolean didWork;
o = outfile;
className = c.className;
didWork = generateNatives( c.methods, false );
System.err.println("CNIHeader " + className + " didWork " + didWork);
return didWork;
}
}