1 /* O_*, F_*, FD_* bit values for Linux/x86. 2 Copyright (C) 2001-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _FCNTL_H 20 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." 21 #endif 22 23 #ifdef __x86_64__ 24 # define __O_LARGEFILE 0 25 #endif 26 27 #ifdef __x86_64__ 28 /* Not necessary, we always have 64-bit offsets. */ 29 # define F_GETLK64 5 /* Get record locking info. */ 30 # define F_SETLK64 6 /* Set record locking info (non-blocking). */ 31 # define F_SETLKW64 7 /* Set record locking info (blocking). */ 32 #endif 33 34 35 struct flock 36 { 37 short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ 38 short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ 39 #ifndef __USE_FILE_OFFSET64 40 __off_t l_start; /* Offset where the lock begins. */ 41 __off_t l_len; /* Size of the locked area; zero means until EOF. */ 42 #else 43 __off64_t l_start; /* Offset where the lock begins. */ 44 __off64_t l_len; /* Size of the locked area; zero means until EOF. */ 45 #endif 46 __pid_t l_pid; /* Process holding the lock. */ 47 }; 48 49 #ifdef __USE_LARGEFILE64 50 struct flock64 51 { 52 short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ 53 short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ 54 __off64_t l_start; /* Offset where the lock begins. */ 55 __off64_t l_len; /* Size of the locked area; zero means until EOF. */ 56 __pid_t l_pid; /* Process holding the lock. */ 57 }; 58 #endif 59 60 /* Include generic Linux declarations. */ 61 #include <bits/fcntl-linux.h> 62