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/**
* Copyright 2013 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.common.os;
/* pp */ abstract class UnixDynamicLinkerImpl extends DynamicLinkerImpl {
//
// Package private scope of class w/ protected native code access
// and sealed jogamp.common.* package definition
// ensuring no abuse via subclassing.
//
/** Interface to C language function: <br> <code> int dlclose(void * ); </code> */
protected static native int dlclose(long arg0);
/** Interface to C language function: <br> <code> char * dlerror(void); </code> */
protected static native java.lang.String dlerror();
/** Interface to C language function: <br> <code> void * dlopen(const char * , int); </code> */
protected static native long dlopen(java.lang.String arg0, int arg1);
/** Interface to C language function: <br> <code> void * dlsym(void * , const char * ); </code> */
protected static native long dlsym(long arg0, java.lang.String arg1);
/** Interface to C language function: <br> <code> int dladdr(void * , Dl_info *); </code>, returning the <code>Dl_info.dli_fname</code> */
protected static native java.lang.String dladdr_fname(long arg0);
@Override
protected final String lookupLibraryPathnameImpl(final long libraryHandle, final String symbolName) throws SecurityException {
if( 0 != libraryHandle && null != symbolName && symbolName.length() > 0 ) {
final long addr = dlsym(libraryHandle, symbolName);
if( 0 != addr ) {
return dladdr_fname(addr);
}
}
return null;
}
@Override
protected final long lookupSymbolLocalImpl(final long libraryHandle, final String symbolName) throws SecurityException {
return 0 != libraryHandle ? dlsym(libraryHandle, symbolName) : 0;
}
@Override
protected final void closeLibraryImpl(final long libraryHandle) throws SecurityException {
if( 0 != libraryHandle ) {
dlclose(libraryHandle);
}
}
@Override
public final String getLastError() {
return dlerror();
}
}
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