qb::io::async::event::disconnected Struct Reference

Event triggered when a connection is closed or lost. More...

#include <disconnected.h>

Public Attributes
int	reason = 0
	Reason code for the disconnection.

Detailed Description

Event triggered when a connection is closed or lost.

This event is passed to the derived class's on() method when a disconnection occurs in an I/O object (e.g., a TCP session). The reason field can contain a code indicating the cause of disconnection.

Usage Example:

class MyNetworkHandler : public qb::io::async::io<MyNetworkHandler> { // Or similar base
public:
  // ... other methods ...
  void on(qb::io::async::event::disconnected &&event) {
    if (event.reason == 0) {
      // Normal disconnection by peer or self
      LOG_INFO("Connection closed normally.");
    } else {
      // Disconnection due to an error, event.reason might hold system errno
      LOG_WARN("Connection lost, reason: " << event.reason);
    }
    // Perform cleanup, attempt reconnection, etc.
  }
};

Member Data Documentation

reason

int qb::io::async::event::disconnected::reason = 0

Reason code for the disconnection.

Typically 0 for a normal shutdown initiated by disconnect() or peer closing gracefully. Non-zero values often correspond to system error codes (errno) if the disconnection was due to an error detected by the underlying transport or OS.