Function OnSteamNetConnectionStatusChanged

tests/test_p2p.cpp:244–362

Called when a connection undergoes a state transition.

// Called when a connection undergoes a state transition.
void OnSteamNetConnectionStatusChanged( SteamNetConnectionStatusChangedCallback_t *pInfo )
{
	// What's the state of the connection?
	switch ( pInfo->m_info.m_eState )
	{
	case k_ESteamNetworkingConnectionState_ClosedByPeer:
	case k_ESteamNetworkingConnectionState_ProblemDetectedLocally:

		TEST_Printf( "[%s] %s, reason %d: %s\n",
			pInfo->m_info.m_szConnectionDescription,
			( pInfo->m_info.m_eState == k_ESteamNetworkingConnectionState_ClosedByPeer ? "closed by peer" : "problem detected locally" ),
			pInfo->m_info.m_eEndReason,
			pInfo->m_info.m_szEndDebug
		);

		if ( g_hConnection == pInfo->m_hConn )
		{
			// Print route info before closing the handle; GetConnectionInfo won't work after.
			// The non-server side prints this in the main loop; the server side does it here
			// since it never initiates the close itself.
			if ( !g_bExpectFailure && g_eTestRole == k_ETestRole_Server )
				PrintRouteInfo();

			// Close our end
			SteamNetworkingSockets()->CloseConnection( pInfo->m_hConn, 0, nullptr, false );
			g_hConnection = k_HSteamNetConnection_Invalid;
			g_bConnected = false;

			if ( g_bExpectFailure )
			{
				// Connection failure is the expected outcome.
				// ProblemDetectedLocally (or ClosedByPeer with non-app reason) = expected.
				// ClosedByPeer with App_Generic = the peer completed successfully, which is wrong.
				bool bUnexpectedSuccess = ( pInfo->m_info.m_eState == k_ESteamNetworkingConnectionState_ClosedByPeer )
				                       && ( pInfo->m_info.m_eEndReason == k_ESteamNetConnectionEnd_App_Generic );
				if ( bUnexpectedSuccess )
				{
					TEST_Printf( "ERROR: connection closed cleanly, but failure was expected\n" );
					Quit( 1 );
				}
				TEST_Printf( "Connection failed as expected\n" );
				SteamNetworkingSocketsLib::TEST_ICE_ctr_Print();
			}
			else
			{
				bool bError = ( pInfo->m_info.m_eState == k_ESteamNetworkingConnectionState_ProblemDetectedLocally )
				           || ( pInfo->m_info.m_eEndReason != k_ESteamNetConnectionEnd_App_Generic );
				if ( bError )
					Quit( 1 );

				if ( g_eTestRole == k_ETestRole_Server )
					SteamNetworkingSocketsLib::TEST_ICE_ctr_Print();
			}

			// Clean close (or expected failure) -- main loop starts next iteration or exits.
			++g_nConnectionsDone;
		}
		else