1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package libcore.io; 18 19 /** 20 * Information returned/taken by fcntl(2) F_GETFL and F_SETFL. Corresponds to C's 21 * {@code struct flock} from 22 * <a href="http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/fcntl.h.html"><fcntl.h></a> 23 */ 24 public final class StructFlock { 25 /** The operation type, one of F_RDLCK, F_WRLCK, or F_UNLCK. */ 26 public short l_type; 27 28 /** How to interpret l_start, one of SEEK_CUR, SEEK_END, SEEK_SET. */ 29 public short l_whence; 30 31 /** Start offset. */ 32 public long l_start; /*off_t*/ 33 34 /** Byte count to operate on. */ 35 public long l_len; /*off_t*/ 36 37 /** Process blocking our lock (filled in by F_GETLK, otherwise unused). */ 38 public int l_pid; /*pid_t*/ 39 } 40