Module io 

I/O wrappers for tracking data transfer.

This module provides ProgressReader and ProgressWriter, which wrap any implementation of std::io::Read or std::io::Write.

mechanics

These wrappers act as “pass-through” middleware. Every byte successfully read or written automatically increments the associated Progress counter. This is particularly useful for:

• File downloads/uploads.
• Hashing large files.
• Compressing/Decompressing data streams.

The overhead is minimal: a single atomic addition per read or write call.

Structs

ProgressReader

A wrapper around Read that increments a Progress tracker based on bytes read.

ProgressWriter

A wrapper around Write that increments a Progress tracker based on bytes written.