libpqxx 4.0
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Internal helper class to support old-style, payloadless notifications. More...
#include <notify-listen.hxx>
Public Member Functions | |
notify_listener_forwarder (connection_base &c, const std::string &channel_name, notify_listener *wrappee) | |
virtual void | operator() (const std::string &, int backend_pid) |
Overridable: action to invoke when notification arrives. |
Internal helper class to support old-style, payloadless notifications.
pqxx::internal::notify_listener_forwarder::notify_listener_forwarder | ( | connection_base & | c, |
const std::string & | channel_name, | ||
notify_listener * | wrappee | ||
) |
void pqxx::internal::notify_listener_forwarder::operator() | ( | const std::string & | payload, |
int | backend_pid | ||
) | [virtual] |
Overridable: action to invoke when notification arrives.
payload | On PostgreSQL 9.0 or later, an optional string that may have been passed to the NOTIFY command. |
backend_pid | Process ID of the database backend process that served our connection when the notification arrived. The actual process ID behind the connection may have changed by the time this method is called. |
Implements pqxx::notification_receiver.