Exclusive file creation

src/archive.zig

@@ -61,9 +61,8 @@ pub fn init(alloc: std.mem.Allocator, fil: File) !Archive {
         try std.Thread.getCpuCount(),
     );
 }
-/// Create the Archive dictating the amount of threads & memory used.
+/// Create the Archive dictating the amount of threads used for extraction.
-/// If trying to extract a full archive, a large memory size & thread count could help.
+/// If you're planning on only interacting with a small number of files, it should be fine to use few (or one) threads.
-/// If you're planning on only interacting with a small number of files, it should be fine to use few threads and a small memory size.
 pub fn initAdvanced(alloc: std.mem.Allocator, fil: File, offset: u64, threads: usize) !Archive {
     var super: Superblock = undefined;
     const red = try fil.pread(@ptrCast(&super), offset);

src/inode.zig

@@ -378,7 +378,7 @@ fn extractThread(
 ///
 /// Assumes the inode is a file or ext_file type.
 fn extractRegFile(self: Inode, alloc: std.mem.Allocator, archive: *Archive, path: []const u8, options: ExtractionOptions) !void {
-    var fil = try std.fs.cwd().createFile(path, .{});
+    var fil = try std.fs.cwd().createFile(path, .{ .exclusive = true });
     defer fil.close();
     var wrt = fil.writer(&[0]u8{});
     var dat_rdr = try self.dataReader(alloc, archive);