Boost C++ Libraries

normal

Normal closure; the connection successfully completed whatever purpose for which it was created.

going_away

The endpoint is going away, either because of a server failure or because the browser is navigating away from the page that opened the connection.

protocol_error

The endpoint is terminating the connection due to a protocol error.

unknown_data

The connection is being terminated because the endpoint received data of a type it cannot accept (for example, a text-only endpoint received binary data).

bad_payload

The endpoint is terminating the connection because a message was received that contained inconsistent data (e.g., non-UTF-8 data within a text message).

policy_error

The endpoint is terminating the connection because it received a message that violates its policy. This is a generic status code, used when codes 1003 and 1009 are not suitable.

too_big

The endpoint is terminating the connection because a data frame was received that is too large.

needs_extension

The client is terminating the connection because it expected the server to negotiate one or more extension, but the server didn't.

internal_error

The server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.

service_restart

The server is terminating the connection because it is restarting.

try_again_later

The server is terminating the connection due to a temporary condition, e.g. it is overloaded and is casting off some of its clients.

none

Used internally to mean "no error".

This code is reserved and may not be sent.

reserved1

Reserved for future use by the WebSocket standard.

This code is reserved and may not be sent.

no_status

No status code was provided even though one was expected.

This code is reserved and may not be sent.

abnormal

Connection was closed without receiving a close frame.

This code is reserved and may not be sent.

reserved2

Reserved for future use by the WebSocket standard.

This code is reserved and may not be sent.

reserved3

Reserved for future use by the WebSocket standard.

This code is reserved and may not be sent.