/** * 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; public final class WindowsDynamicLinkerImpl extends DynamicLinkerImpl { /** Interface to C language function: <br> <code> BOOL FreeLibrary(HANDLE hLibModule); </code> */ private static native int FreeLibrary(long hLibModule); /** Interface to C language function: <br> <code> DWORD GetLastError(void); </code> */ private static native int GetLastError(); /** Interface to C language function: <br> <code> PROC GetProcAddressA(HANDLE hModule, LPCSTR lpProcName); </code> */ private static native long GetProcAddressA(long hModule, java.lang.String lpProcName); /** Interface to C language function: <br> <code> HANDLE LoadLibraryW(LPCWSTR lpLibFileName); </code> */ private static native long LoadLibraryW(java.lang.String lpLibFileName); @Override protected final long openLibraryLocalImpl(final String libraryName) throws SecurityException { // How does that work under Windows ? // Don't know .. so it's an alias to global, for the time being return LoadLibraryW(libraryName); } @Override protected final long openLibraryGlobalImpl(final String libraryName) throws SecurityException { return LoadLibraryW(libraryName); } @Override protected final long lookupSymbolGlobalImpl(final String symbolName) throws SecurityException { if(DEBUG_LOOKUP) { System.err.println("lookupSymbolGlobal: Not supported on Windows"); } // allow DynamicLibraryBundle to continue w/ local libs return 0; } private static final int symbolArgAlignment=4; // 4 byte alignment of each argument private static final int symbolMaxArguments=12; // experience .. @Override protected final long lookupSymbolLocalImpl(final long libraryHandle, final String symbolName) throws IllegalArgumentException { String _symbolName = symbolName; long addr = GetProcAddressA(libraryHandle, _symbolName); if( 0 == addr ) { // __stdcall hack: try some @nn decorations, // the leading '_' must not be added (same with cdecl) for(int arg=0; 0==addr && arg<=symbolMaxArguments; arg++) { _symbolName = symbolName+"@"+(arg*symbolArgAlignment); addr = GetProcAddressA(libraryHandle, _symbolName); } } return addr; } @Override protected final void closeLibraryImpl(final long libraryHandle) throws IllegalArgumentException { FreeLibrary(libraryHandle); } @Override public final String getLastError() { final int err = GetLastError(); return "Last error: 0x"+Integer.toHexString(err)+" ("+err+")"; } }