| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.tomcat.jni; |
| |
| import java.io.File; |
| |
| /** Library |
| * |
| * @author Mladen Turk |
| */ |
| public final class Library { |
| |
| /* Default library names */ |
| private static final String [] NAMES = {"tcnative-1", "libtcnative-1"}; |
| /* |
| * A handle to the unique Library singleton instance. |
| */ |
| private static Library _instance = null; |
| |
| private Library() throws Exception { |
| boolean loaded = false; |
| String path = System.getProperty("java.library.path"); |
| String [] paths = path.split(File.pathSeparator); |
| StringBuilder err = new StringBuilder(); |
| for (int i = 0; i < NAMES.length; i++) { |
| try { |
| System.loadLibrary(NAMES[i]); |
| loaded = true; |
| } catch (ThreadDeath t) { |
| throw t; |
| } catch (VirtualMachineError t) { |
| // Don't use a Java 7 multiple exception catch so we can keep |
| // the JNI code identical between Tomcat 6/7/8/9 |
| throw t; |
| } catch (Throwable t) { |
| String name = System.mapLibraryName(NAMES[i]); |
| for (int j = 0; j < paths.length; j++) { |
| java.io.File fd = new java.io.File(paths[j] , name); |
| if (fd.exists()) { |
| // File exists but failed to load |
| throw t; |
| } |
| } |
| if (i > 0) { |
| err.append(", "); |
| } |
| err.append(t.getMessage()); |
| } |
| if (loaded) { |
| break; |
| } |
| } |
| if (!loaded) { |
| StringBuilder names = new StringBuilder(); |
| for (String name : NAMES) { |
| names.append(name); |
| names.append(", "); |
| } |
| throw new LibraryNotFoundError(names.substring(0, names.length() -2), err.toString()); |
| } |
| } |
| |
| private Library(String libraryName) |
| { |
| System.loadLibrary(libraryName); |
| } |
| |
| /* create global TCN's APR pool |
| * This has to be the first call to TCN library. |
| */ |
| private static native boolean initialize(); |
| /* destroy global TCN's APR pool |
| * This has to be the last call to TCN library. |
| */ |
| public static native void terminate(); |
| /* Internal function for loading APR Features */ |
| private static native boolean has(int what); |
| /* Internal function for loading APR Features */ |
| private static native int version(int what); |
| /* Internal function for loading APR sizes */ |
| private static native int size(int what); |
| |
| /* TCN_MAJOR_VERSION */ |
| public static int TCN_MAJOR_VERSION = 0; |
| /* TCN_MINOR_VERSION */ |
| public static int TCN_MINOR_VERSION = 0; |
| /* TCN_PATCH_VERSION */ |
| public static int TCN_PATCH_VERSION = 0; |
| /* TCN_IS_DEV_VERSION */ |
| public static int TCN_IS_DEV_VERSION = 0; |
| /* APR_MAJOR_VERSION */ |
| public static int APR_MAJOR_VERSION = 0; |
| /* APR_MINOR_VERSION */ |
| public static int APR_MINOR_VERSION = 0; |
| /* APR_PATCH_VERSION */ |
| public static int APR_PATCH_VERSION = 0; |
| /* APR_IS_DEV_VERSION */ |
| public static int APR_IS_DEV_VERSION = 0; |
| |
| /* TCN_VERSION_STRING */ |
| public static native String versionString(); |
| /* APR_VERSION_STRING */ |
| public static native String aprVersionString(); |
| |
| /* APR Feature Macros */ |
| public static boolean APR_HAVE_IPV6 = false; |
| public static boolean APR_HAS_SHARED_MEMORY = false; |
| public static boolean APR_HAS_THREADS = false; |
| public static boolean APR_HAS_SENDFILE = false; |
| public static boolean APR_HAS_MMAP = false; |
| public static boolean APR_HAS_FORK = false; |
| public static boolean APR_HAS_RANDOM = false; |
| public static boolean APR_HAS_OTHER_CHILD = false; |
| public static boolean APR_HAS_DSO = false; |
| public static boolean APR_HAS_SO_ACCEPTFILTER = false; |
| public static boolean APR_HAS_UNICODE_FS = false; |
| public static boolean APR_HAS_PROC_INVOKED = false; |
| public static boolean APR_HAS_USER = false; |
| public static boolean APR_HAS_LARGE_FILES = false; |
| public static boolean APR_HAS_XTHREAD_FILES = false; |
| public static boolean APR_HAS_OS_UUID = false; |
| /* Are we big endian? */ |
| public static boolean APR_IS_BIGENDIAN = false; |
| /* APR sets APR_FILES_AS_SOCKETS to 1 on systems where it is possible |
| * to poll on files/pipes. |
| */ |
| public static boolean APR_FILES_AS_SOCKETS = false; |
| /* This macro indicates whether or not EBCDIC is the native character set. |
| */ |
| public static boolean APR_CHARSET_EBCDIC = false; |
| /* Is the TCP_NODELAY socket option inherited from listening sockets? |
| */ |
| public static boolean APR_TCP_NODELAY_INHERITED = false; |
| /* Is the O_NONBLOCK flag inherited from listening sockets? |
| */ |
| public static boolean APR_O_NONBLOCK_INHERITED = false; |
| |
| |
| public static int APR_SIZEOF_VOIDP; |
| public static int APR_PATH_MAX; |
| public static int APRMAXHOSTLEN; |
| public static int APR_MAX_IOVEC_SIZE; |
| public static int APR_MAX_SECS_TO_LINGER; |
| public static int APR_MMAP_THRESHOLD; |
| public static int APR_MMAP_LIMIT; |
| |
| /* return global TCN's APR pool */ |
| public static native long globalPool(); |
| |
| /** |
| * Setup any APR internal data structures. This MUST be the first function |
| * called for any APR library. |
| * @param libraryName the name of the library to load |
| * |
| * @return {@code true} if the native code was initialized successfully |
| * otherwise {@code false} |
| * |
| * @throws Exception if a problem occurred during initialization |
| */ |
| public static synchronized boolean initialize(String libraryName) throws Exception { |
| if (_instance == null) { |
| if (libraryName == null) |
| _instance = new Library(); |
| else |
| _instance = new Library(libraryName); |
| TCN_MAJOR_VERSION = version(0x01); |
| TCN_MINOR_VERSION = version(0x02); |
| TCN_PATCH_VERSION = version(0x03); |
| TCN_IS_DEV_VERSION = version(0x04); |
| APR_MAJOR_VERSION = version(0x11); |
| APR_MINOR_VERSION = version(0x12); |
| APR_PATCH_VERSION = version(0x13); |
| APR_IS_DEV_VERSION = version(0x14); |
| |
| APR_SIZEOF_VOIDP = size(1); |
| APR_PATH_MAX = size(2); |
| APRMAXHOSTLEN = size(3); |
| APR_MAX_IOVEC_SIZE = size(4); |
| APR_MAX_SECS_TO_LINGER = size(5); |
| APR_MMAP_THRESHOLD = size(6); |
| APR_MMAP_LIMIT = size(7); |
| |
| APR_HAVE_IPV6 = has(0); |
| APR_HAS_SHARED_MEMORY = has(1); |
| APR_HAS_THREADS = has(2); |
| APR_HAS_SENDFILE = has(3); |
| APR_HAS_MMAP = has(4); |
| APR_HAS_FORK = has(5); |
| APR_HAS_RANDOM = has(6); |
| APR_HAS_OTHER_CHILD = has(7); |
| APR_HAS_DSO = has(8); |
| APR_HAS_SO_ACCEPTFILTER = has(9); |
| APR_HAS_UNICODE_FS = has(10); |
| APR_HAS_PROC_INVOKED = has(11); |
| APR_HAS_USER = has(12); |
| APR_HAS_LARGE_FILES = has(13); |
| APR_HAS_XTHREAD_FILES = has(14); |
| APR_HAS_OS_UUID = has(15); |
| APR_IS_BIGENDIAN = has(16); |
| APR_FILES_AS_SOCKETS = has(17); |
| APR_CHARSET_EBCDIC = has(18); |
| APR_TCP_NODELAY_INHERITED = has(19); |
| APR_O_NONBLOCK_INHERITED = has(20); |
| if (APR_MAJOR_VERSION < 1) { |
| throw new UnsatisfiedLinkError("Unsupported APR Version (" + |
| aprVersionString() + ")"); |
| } |
| if (!APR_HAS_THREADS) { |
| throw new UnsatisfiedLinkError("Missing APR_HAS_THREADS"); |
| } |
| } |
| return initialize(); |
| } |
| } |