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 import com.apple.jobjc.Coder.PrimitivePointerCoder; 28 29 30 class FFIType{ 31 private static native void makeFFIType(long ffi_type_buf, long elements_buf); 32 private static native int getFFITypeSizeof(); 33 private static int FFI_TYPE_SIZEOF = getFFITypeSizeof(); 34 final NativeBuffer ffi_type; 35 final NativeBuffer elements; 36 final Coder[] elementCoders; 37 38 public FFIType(final Coder... elementCoders){ 39 final JObjCRuntime runtime = JObjCRuntime.inst(); 40 this.elementCoders = elementCoders; 41 this.ffi_type = new NativeBuffer(FFI_TYPE_SIZEOF); 42 this.elements = new NativeBuffer(JObjCRuntime.PTR_LEN * (elementCoders.length + 1)); 43 44 long elIterPtr = elements.bufferPtr; 45 for(Coder c : elementCoders){ 46 PrimitivePointerCoder.INST.push(runtime, elIterPtr, c.getFFITypePtr()); 47 elIterPtr += PrimitivePointerCoder.INST.sizeof(); 48 } 49 PrimitivePointerCoder.INST.push(runtime, elIterPtr, 0); 50 51 makeFFIType(ffi_type.bufferPtr, elements.bufferPtr); 52 } 53 54 public long getPtr(){ 55 return ffi_type.bufferPtr; 56 } 57 }