1 /* 2 * Copyright (c) 2008, 2019, 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 26 package sun.nio.fs; 27 28 /** 29 * Linux specific system calls. 30 */ 31 32 class LinuxNativeDispatcher extends UnixNativeDispatcher { 33 private LinuxNativeDispatcher() { } 34 35 /** 36 * FILE *setmntent(const char *filename, const char *type); 37 */ 38 static long setmntent(byte[] filename, byte[] type) throws UnixException { 39 NativeBuffer pathBuffer = NativeBuffers.asNativeBuffer(filename); 40 NativeBuffer typeBuffer = NativeBuffers.asNativeBuffer(type); 41 try { 42 return setmntent0(pathBuffer.address(), typeBuffer.address()); 43 } finally { 44 typeBuffer.release(); 45 pathBuffer.release(); 46 } 47 } 48 private static native long setmntent0(long pathAddress, long typeAddress) 49 throws UnixException; 50 51 /** 52 * int getmntent(FILE *fp, struct mnttab *mp, int len); 53 */ 54 static native int getmntent(long fp, UnixMountEntry entry) 55 throws UnixException; 56 57 /** 58 * int endmntent(FILE* filep); 59 */ 60 static native void endmntent(long stream) throws UnixException; 61 62 /** 63 * ssize_t fgetxattr(int filedes, const char *name, void *value, size_t size); 64 */ 65 static int fgetxattr(int filedes, byte[] name, long valueAddress, 66 int valueLen) throws UnixException 67 { 68 NativeBuffer buffer = NativeBuffers.asNativeBuffer(name); 69 try { 70 return fgetxattr0(filedes, buffer.address(), valueAddress, valueLen); 71 } finally { 72 buffer.release(); 73 } 74 } 75 76 private static native int fgetxattr0(int filedes, long nameAddress, 77 long valueAddress, int valueLen) throws UnixException; 78 79 /** 80 * fsetxattr(int filedes, const char *name, const void *value, size_t size, int flags); 81 */ 82 static void fsetxattr(int filedes, byte[] name, long valueAddress, 83 int valueLen) throws UnixException 84 { 85 NativeBuffer buffer = NativeBuffers.asNativeBuffer(name); 86 try { 87 fsetxattr0(filedes, buffer.address(), valueAddress, valueLen); 88 } finally { 89 buffer.release(); 90 } 91 } 92 93 private static native void fsetxattr0(int filedes, long nameAddress, 94 long valueAddress, int valueLen) throws UnixException; 95 96 /** 97 * fremovexattr(int filedes, const char *name); 98 */ 99 static void fremovexattr(int filedes, byte[] name) throws UnixException { 100 NativeBuffer buffer = NativeBuffers.asNativeBuffer(name); 101 try { 102 fremovexattr0(filedes, buffer.address()); 103 } finally { 104 buffer.release(); 105 } 106 } 107 108 private static native void fremovexattr0(int filedes, long nameAddress) 109 throws UnixException; 110 111 /** 112 * size_t flistxattr(int filedes, const char *list, size_t size) 113 */ 114 static native int flistxattr(int filedes, long listAddress, int size) 115 throws UnixException; 116 117 // initialize 118 private static native void init(); 119 120 static { 121 jdk.internal.access.SharedSecrets.getJavaLangAccess().loadLibrary("nio"); 122 init(); 123 } 124 }