/* * Copyright (C) 2003 Apple Computer, Inc. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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. */ #include <JavaVM/jni.h> #import <mach-o/dyld.h> const struct mach_header *loadFramework(const char *execPath); void *getFunctionPointer(const struct mach_header *header, const char *functionName); const struct mach_header *loadFramework(const char *execPath) { return NSAddImage(execPath, NSADDIMAGE_OPTION_WITH_SEARCHING | NSADDIMAGE_OPTION_MATCH_FILENAME_BY_INSTALLNAME); } void *getFunctionPointer(const struct mach_header *header, const char *functionName) { NSSymbol symbol = NSLookupSymbolInImage(header, functionName, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND); if (symbol!=NULL) { return NSAddressOfSymbol(symbol); } return 0; } jint JNI_GetCreatedJavaVMs(JavaVM **vmBuf, jsize bufLen, jsize *nVMs) { static const struct mach_header *header = 0; if (!header) { header = loadFramework("/System/Library/Frameworks/JavaVM.framework/JavaVM"); } static jint(*functionPointer)(JavaVM **, jsize, jsize *) = 0; if (!functionPointer) { functionPointer = getFunctionPointer(header, "_JNI_GetCreatedJavaVMs"); } return functionPointer(vmBuf, bufLen, nVMs); }