1 /* O_*, F_*, FD_* bit values for Linux. 2 Copyright (C) 1995-2021 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 #include <sgidefs.h> 24 25 #define O_APPEND 0x0008 26 #define O_SYNC 0x4010 27 #define O_NONBLOCK 0x0080 28 #define O_CREAT 0x0100 /* not fcntl */ 29 #define O_TRUNC 0x0200 /* not fcntl */ 30 #define O_EXCL 0x0400 /* not fcntl */ 31 #define O_NOCTTY 0x0800 /* not fcntl */ 32 #define O_ASYNC 0x1000 33 34 #define __O_DIRECT 0x8000 /* Direct disk access hint. */ 35 #define __O_DSYNC 0x0010 /* Synchronize data. */ 36 37 #if _MIPS_SIM == _ABI64 38 /* Not necessary, files are always with 64bit off_t. */ 39 # define __O_LARGEFILE 0 40 #else 41 # define __O_LARGEFILE 0x2000 /* Allow large file opens. */ 42 #endif 43 44 #ifndef __USE_FILE_OFFSET64 45 # define F_GETLK 14 /* Get record locking info. */ 46 # define F_SETLK 6 /* Set record locking info (non-blocking). */ 47 # define F_SETLKW 7 /* Set record locking info (blocking). */ 48 #else 49 # define F_GETLK F_GETLK64 /* Get record locking info. */ 50 # define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ 51 # define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ 52 #endif 53 54 #if _MIPS_SIM != _ABI64 55 # define F_GETLK64 33 /* Get record locking info. */ 56 # define F_SETLK64 34 /* Set record locking info (non-blocking). */ 57 # define F_SETLKW64 35 /* Set record locking info (blocking). */ 58 #else 59 # define F_GETLK64 14 /* Get record locking info. */ 60 # define F_SETLK64 6 /* Set record locking info (non-blocking).*/ 61 # define F_SETLKW64 7 /* Set record locking info (blocking). */ 62 #endif 63 64 #define __F_SETOWN 24 /* Get owner (process receiving SIGIO). */ 65 #define __F_GETOWN 23 /* Set owner (process receiving SIGIO). */ 66 67 struct flock 68 { 69 short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ 70 short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ 71 #ifndef __USE_FILE_OFFSET64 72 __off_t l_start; /* Offset where the lock begins. */ 73 __off_t l_len; /* Size of the locked area; zero means until EOF. */ 74 #if _MIPS_SIM != _ABI64 75 /* The 64-bit flock structure, used by the n64 ABI, and for 64-bit 76 fcntls in o32 and n32, never has this field. */ 77 long int l_sysid; 78 #endif 79 #else 80 __off64_t l_start; /* Offset where the lock begins. */ 81 __off64_t l_len; /* Size of the locked area; zero means until EOF. */ 82 #endif 83 __pid_t l_pid; /* Process holding the lock. */ 84 #if ! defined __USE_FILE_OFFSET64 && _MIPS_SIM != _ABI64 85 /* The 64-bit flock structure, used by the n64 ABI, and for 64-bit 86 flock in o32 and n32, never has this field. */ 87 long int __glibc_reserved0[4]; 88 #endif 89 }; 90 typedef struct flock flock_t; 91 92 #ifdef __USE_LARGEFILE64 93 struct flock64 94 { 95 short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ 96 short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ 97 __off64_t l_start; /* Offset where the lock begins. */ 98 __off64_t l_len; /* Size of the locked area; zero means until EOF. */ 99 __pid_t l_pid; /* Process holding the lock. */ 100 }; 101 #endif 102 103 /* Include generic Linux declarations. */ 104 #include <bits/fcntl-linux.h> 105