62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/* These values should be changed as appropriate for your system. */
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#ifndef _GNU_FCNTL_H
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#define _GNU_FCNTL_H 1
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#include <gnu/types.h>
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/* Values for the second argument to fcntl. */
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#define __F_DUPFD 0 /* Duplicate file descriptor. */
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#define __F_GETFD 1 /* Get file descriptor flags. */
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#define __F_SETFD 2 /* Set file descriptor flags. */
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#define __F_GETFL 3 /* Get file status flags. */
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#define __F_SETFL 4 /* Set file status flags. */
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#define __F_GETOWN 5 /* Get owner (receiver of SIGIO). */
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#define __F_SETOWN 6 /* Set owner (receiver of SIGIO). */
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#define __F_GETLK 7 /* Get record locking info. */
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#define __F_SETLK 8 /* Set record locking info. */
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#define __F_SETLKW 9 /* Set record locking info, wait. */
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/* File descriptor flags used with F_GETFD and F_SETFD. */
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#define __FD_CLOEXEC 1 /* Close on exec. */
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/* The structure describing an advisory lock. This is the type of the third
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argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests. */
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struct __flock
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{
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short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
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short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
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__off_t l_start; /* Offset where the lock begins. */
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__off_t l_len; /* Size of the locked area; zero means until EOF. */
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__pid_t l_pid; /* Process holding the lock. */
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};
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#define __F_RDLCK 1 /* Read lock. */
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#define __F_WRLCK 2 /* Write lock. */
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#define __F_UNLCK 3 /* Remove lock. */
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#endif /* gnu/fcntl.h */
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