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 55 static int getmntent(long fp, UnixMountEntry entry, int buflen) throws UnixException { 56 NativeBuffer buffer = NativeBuffers.getNativeBuffer(buflen); 57 try { 58 return getmntent0(fp, entry, buffer.address(), buflen); 59 } finally { 60 buffer.release(); 61 } 62 } 63 64 static native int getmntent0(long fp, UnixMountEntry entry, long buffer, int bufLen) 65 throws UnixException; 66 67 /** 68 * int endmntent(FILE* filep); 69 */ 70 static native void endmntent(long stream) throws UnixException; 71 72 /** 73 * ssize_t fgetxattr(int filedes, const char *name, void *value, size_t size); 74 */ 75 static int fgetxattr(int filedes, byte[] name, long valueAddress, 76 int valueLen) throws UnixException 77 { 78 NativeBuffer buffer = NativeBuffers.asNativeBuffer(name); 79 try { 80 return fgetxattr0(filedes, buffer.address(), valueAddress, valueLen); 81 } finally { 82 buffer.release(); 83 } 84 } 85 86 private static native int fgetxattr0(int filedes, long nameAddress, 87 long valueAddress, int valueLen) throws UnixException; 88 89 /** 90 * fsetxattr(int filedes, const char *name, const void *value, size_t size, int flags); 91 */ 92 static void fsetxattr(int filedes, byte[] name, long valueAddress, 93 int valueLen) throws UnixException 94 { 95 NativeBuffer buffer = NativeBuffers.asNativeBuffer(name); 96 try { 97 fsetxattr0(filedes, buffer.address(), valueAddress, valueLen); 98 } finally { 99 buffer.release(); 100 } 101 } 102 103 private static native void fsetxattr0(int filedes, long nameAddress, 104 long valueAddress, int valueLen) throws UnixException; 105 106 /** 107 * fremovexattr(int filedes, const char *name); 108 */ 109 static void fremovexattr(int filedes, byte[] name) throws UnixException { 110 NativeBuffer buffer = NativeBuffers.asNativeBuffer(name); 111 try { 112 fremovexattr0(filedes, buffer.address()); 113 } finally { 114 buffer.release(); 115 } 116 } 117 118 private static native void fremovexattr0(int filedes, long nameAddress) 119 throws UnixException; 120 121 /** 122 * size_t flistxattr(int filedes, const char *list, size_t size) 123 */ 124 static native int flistxattr(int filedes, long listAddress, int size) 125 throws UnixException; 126 127 // initialize 128 private static native void init(); 129 130 static { 131 sun.security.action.LoadLibraryAction.privilegedLoadLibrary("nio"); 132 init(); 133 } 134 }