Poll tests

tests/integrationtests/TestingProxy.h

@@ -30,6 +30,10 @@
 #include "proxy-glue.h"
 #include <atomic>
 
+#include <unistd.h>
+#include <sys/syscall.h>
+#define gettid() syscall(SYS_gettid)
+
 class TestingProxy : public sdbus::ProxyInterfaces< ::testing_proxy
                                                   , sdbus::Peer_proxy
                                                   , sdbus::Introspectable_proxy
@@ -57,6 +61,7 @@ protected:
     void onSimpleSignal() override
     {
         m_gotSimpleSignal = true;
+        printf("Thread %d: Got simple signal\n", gettid());
     }
 
     void onSignalWithMap(const std::map<int32_t, std::string>& m) override