diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/lockf64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/lockf64.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/lockf64.c b/sysdeps/unix/sysv/linux/i386/lockf64.c deleted file mode 100644 index 7c8631112f..0000000000 --- a/sysdeps/unix/sysv/linux/i386/lockf64.c +++ /dev/null @@ -1,70 +0,0 @@ -/* Copyright (C) 1994-2019 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 - <http://www.gnu.org/licenses/>. */ - -#include <sys/types.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> -#include <string.h> -#include <sysdep.h> - -/* lockf is a simplified interface to fcntl's locking facilities. */ - -int -lockf64 (int fd, int cmd, off64_t len64) -{ - struct flock64 fl64; - int cmd64; - int result; - - memset ((char *) &fl64, '\0', sizeof (fl64)); - fl64.l_whence = SEEK_CUR; - fl64.l_start = 0; - fl64.l_len = len64; - - switch (cmd) - { - case F_TEST: - /* Test the lock: return 0 if FD is unlocked or locked by this process; - return -1, set errno to EACCES, if another process holds the lock. */ - fl64.l_type = F_RDLCK; - INTERNAL_SYSCALL_DECL (err); - result = INTERNAL_SYSCALL (fcntl64, err, 3, fd, F_GETLK64, &fl64); - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - return INLINE_SYSCALL_ERROR_RETURN_VALUE (INTERNAL_SYSCALL_ERRNO (result, - err)); - if (fl64.l_type == F_UNLCK || fl64.l_pid == __getpid ()) - return 0; - return INLINE_SYSCALL_ERROR_RETURN_VALUE (EACCES); - case F_ULOCK: - fl64.l_type = F_UNLCK; - cmd64 = F_SETLK64; - break; - case F_LOCK: - fl64.l_type = F_WRLCK; - cmd64 = F_SETLKW64; - break; - case F_TLOCK: - fl64.l_type = F_WRLCK; - cmd64 = F_SETLK64; - break; - - default: - return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); - } - return INLINE_SYSCALL (fcntl64, 3, fd, cmd64, &fl64); -} |