File: fcntl.h

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/* O_*, F_*, FD_* bit values for the generic Linux/LoongArch ABI.
   Copyright (C) 2022 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library.  If not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _FCNTL_H
#error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
#endif

#include <bits/wordsize.h>

/* In 64-bit ISA files are always with 64bit off_t and F_*LK64 are the same as
   non-64-bit versions.  It will need to be revised for 128-bit.  */
#if __WORDSIZE == 64
#define __O_LARGEFILE 0

#define F_GETLK64 5  /* Get record locking info.  */
#define F_SETLK64 6  /* Set record locking info (non-blocking).  */
#define F_SETLKW64 7 /* Set record locking info (blocking).  */
#endif

struct flock
{
  short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
#ifndef __USE_FILE_OFFSET64
  __off_t l_start; /* Offset where the lock begins.  */
  __off_t l_len;   /* Size of the locked area; zero means until EOF.  */
#else
  __off64_t l_start; /* Offset where the lock begins.  */
  __off64_t l_len;   /* Size of the locked area; zero means until EOF.  */
#endif
  __pid_t l_pid; /* Process holding the lock.  */
};

#ifdef __USE_LARGEFILE64
struct flock64
{
  short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  __off64_t l_start;  /* Offset where the lock begins.  */
  __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  __pid_t l_pid;      /* Process holding the lock.  */
};
#endif

/* Include generic Linux declarations.  */
#include <bits/fcntl-linux.h>