important:

* PIThread::~PIThread() now unregister itself from introspection, if terminates than show warning
 * PISystemMonitor now correctly stops
 * PIPeer now can correctly stopAndWait
 * PIPeer::destroy(), protected method for close all eths and threads
 * new PIINTROSPECTION_STOP macro
 * Introspection now can be correctly stopped by macro, more safety

ClientServer:
 * ClientBase::close() stop and disconnect channel
 * Server clients clean-up now event-based
 * No warnings on client destructor

libs/client_server/piclientserver_client_base.cpp

@@ -26,17 +26,18 @@ PIClientServer::ClientBase::ClientBase() {}
 
 
 PIClientServer::ClientBase::~ClientBase() {
-	stop();
+	close();
 	if (own_tcp) piDeleteSafety(tcp);
 }
 
 
-void PIClientServer::ClientBase::stop() {
+void PIClientServer::ClientBase::close() {
 	if (!tcp) return;
 	can_write = false;
 	tcp->interrupt();
 	tcp->stopAndWait(10_s);
 	if (tcp->isThreadedRead()) tcp->terminateThreadedRead();
+	tcp->close();
 	stream.clear();
 }