posix/unistd/lockf.cpp

16 	struct flock fileLock;
17 	fileLock.l_start = 0;
18 	fileLock.l_len = size;
19 	fileLock.l_whence = SEEK_CUR;
23 		fileLock.l_type = F_UNLCK;
24 		return fcntl(fileDescriptor, F_SETLK, &fileLock);
27 		fileLock.l_type = F_WRLCK;
28 		return fcntl(fileDescriptor, F_SETLKW, &fileLock);
31 		fileLock.l_type = F_WRLCK;
32 		return fcntl(fileDescriptor, F_SETLK, &fileLock);
35 		fileLock.l_type = F_WRLCK;
36 		if (fcntl(fileDescriptor, F_GETLK, &fileLock) == -1)
38 		if (fileLock.l_type == F_UNLCK)