modernc.org/cc@v1.0.1/v2/headers/linux_386/usr/include/i386-linux-gnu/sys/file.h (about)

     1  /* Copyright (C) 1991-2018 Free Software Foundation, Inc.
     2     This file is part of the GNU C Library.
     3  
     4     The GNU C Library is free software; you can redistribute it and/or
     5     modify it under the terms of the GNU Lesser General Public
     6     License as published by the Free Software Foundation; either
     7     version 2.1 of the License, or (at your option) any later version.
     8  
     9     The GNU C Library is distributed in the hope that it will be useful,
    10     but WITHOUT ANY WARRANTY; without even the implied warranty of
    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12     Lesser General Public License for more details.
    13  
    14     You should have received a copy of the GNU Lesser General Public
    15     License along with the GNU C Library; if not, see
    16     <http://www.gnu.org/licenses/>.  */
    17  
    18  #ifndef	_SYS_FILE_H
    19  #define	_SYS_FILE_H	1
    20  
    21  #include <features.h>
    22  
    23  #ifndef	_FCNTL_H
    24  # include <fcntl.h>
    25  #endif
    26  
    27  __BEGIN_DECLS
    28  /* Alternate names for values for the WHENCE argument to `lseek'.
    29     These are the same as SEEK_SET, SEEK_CUR, and SEEK_END, respectively.  */
    30  #ifndef L_SET
    31  # define L_SET	0		/* Seek from beginning of file.  */
    32  # define L_INCR	1		/* Seek from current position.  */
    33  # define L_XTND	2		/* Seek from end of file.  */
    34  #endif
    35  /* Operations for the `flock' call.  */
    36  #define	LOCK_SH	1		/* Shared lock.  */
    37  #define	LOCK_EX	2		/* Exclusive lock.  */
    38  #define	LOCK_UN	8		/* Unlock.  */
    39  #define	__LOCK_ATOMIC	16	/* Atomic update.  */
    40  /* Can be OR'd in to one of the above.  */
    41  #define	LOCK_NB	4		/* Don't block when locking.  */
    42  /* Apply or remove an advisory lock, according to OPERATION,
    43     on the file FD refers to.  */
    44  extern int flock(int __fd, int __operation) __THROW;
    45  
    46  __END_DECLS
    47  #endif				/* sys/file.h  */