//! Logical channel multiplexing for PO sessions.
//!//! Channels allow multiple independent data streams over a single PO connection.
//! Each channel has a numeric ID (u32) that maps to a specific purpose.
/// Well-known channel IDs.
pubmodchannels{/// Control channel (handshake, ping, close).
pubconstCONTROL:u32=0;/// Default data channel.
pubconstDEFAULT:u32=1;/// File transfer channel.
pubconstFILE_TRANSFER:u32=2;/// First user-defined channel ID.
pubconstUSER_START:u32=100;}