libt2n: (gerd) client callbacks

[libt2n] / src / client.cpp

diff --git a/src/client.cpp b/src/client.cpp
index 88a24f5..96b2554 100644 (file)
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -24,5 +24,64 @@
 namespace libt2n
 {
 
+client_connection::client_connection()
+    : connection(), callbacks(__events_end)
+{
+    set_logging(NULL,none);
+}
+
+client_connection::~client_connection()
+{
+    // we want the connection_closed callbacks to be called before
+    close();
+
+    do_callbacks(connection_deleted);
+}
+
+void client_connection::close()
+{
+    if (!is_closed())
+    {
+        connection::close();
+        do_callbacks(connection_closed);
+    }
+}
+
+/** @brief add a callback
+
+    @param event event the function will be called at
+    @param func functor (see boost function) that will be called
+
+    @example use boost::bind to bind to member functions and parameters like this:
+        int this example 17 is a fixed parameter that is always added to the call
+        c.add_callback(connection_closed,bind(&my_class::func_to_call_back, boost::ref(*this), 17));
+*/
+void client_connection::add_callback(callback_event_type event, const boost::function<void ()>& func)
+{
+    callbacks[event].push_back(func);
+}
+
+void client_connection::do_callbacks(callback_event_type event)
+{
+    std::list<boost::function<void ()> >::iterator i,ie=callbacks[event].end();
+    for (i=callbacks[event].begin(); i != ie; i++)
+        (*i)();
+}
+
+/// get pointer to logging stream, returns NULL if no logging needed
+std::ostream* client_connection::get_logstream(log_level_values level)
+{
+    if (logstream && log_level >= level)
+        return logstream;
+    else
+        return NULL;
+}
+
+/// activate logging to the given stream. everything above the given level is logged.
+void client_connection::set_logging(std::ostream *_logstream, log_level_values _log_level)
+{
+    log_level=_log_level;
+    logstream=_logstream;
+}
 
 };