1 /* 2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package com.apple.jobjc; 26 27 28 29 public class MacOSXFramework { 30 private static native long retainFramework(final String frameworkName); 31 private static native void releaseFramework(final long frameworkPtr); 32 private static native void getConstant(final long frameworkPtr, String symbol, final long bufferPtr, final int size); 33 34 private final JObjCRuntime runtime; 35 protected final long[] nativeLibPtrs; 36 37 final long getFrameworkPtr() { return nativeLibPtrs.length > 0 ? nativeLibPtrs[0] : 0; } 38 39 private static long[] createFrameworkPtrsFromPaths(final String[] frameworkLibPaths) { 40 final long[] libPtrs = new long[frameworkLibPaths.length]; 41 for(int i = 0; i < libPtrs.length; i++){ 42 libPtrs[i] = retainFramework(frameworkLibPaths[i]); 43 if(libPtrs[i] == 0) throw new RuntimeException("Could not open library at " + frameworkLibPaths[i]); 44 } 45 return libPtrs; 46 } 47 48 protected MacOSXFramework(final JObjCRuntime runtime, final String[] nativeLibPaths) { 49 runtime.assertOK(); 50 this.runtime = runtime; 51 this.nativeLibPtrs = createFrameworkPtrsFromPaths(nativeLibPaths); 52 } 53 54 @Override protected final synchronized void finalize() throws Throwable { 55 for(long lib : nativeLibPtrs) 56 if(lib != 0) releaseFramework(lib); 57 } 58 59 protected final JObjCRuntime getRuntime(){ return runtime; } 60 61 protected void getConstant(final String symbol, final long retValPtr, final int size){ 62 assert size >= 0; 63 assert retValPtr != 0; 64 getConstant(getFrameworkPtr(), symbol, retValPtr, size); 65 } 66 67 protected void getConstant(final String symbol, final NativeArgumentBuffer out, final int size){ 68 getConstant(symbol, out.retValPtr, size); 69 } 70 71 protected void getConstant(final String symbol, final Struct out, final int size){ 72 getConstant(symbol, out.raw.bufferPtr, size); 73 } 74 }