MaxDepth indicates how many entries can be in the Stack.

New creates a new instance of Stack.

NoFlush indicates to not flush every write to disk.

UseExisting indicates that "p" exists with an existing queue.

StackEmpty indicates the stack had no entries.

StackFull indicates that MaxDepth was reached and no entries can be added until a Pop() occurs.

reverse is a wrapper around an io.ReadWriter that will assume all data is in the reverse format.

Stack implements a LIFO queue that can store a single object type that can be encoded by the gob encoder (encoding/gob) on local disk.

VersionInfo is used to encode version information for the disk stack into our files.

Option provides an optional argument to New().