benchmark: Trap SIGINT and exit cleanly in case of exceptions

arch/tests/tapasco_benchmark.cpp

@@ -11,6 +11,7 @@
 #include <sstream>
 #include <chrono>
 #include <ctime>
+#include <csignal>
 #include <vector>
 #include <sys/utsname.h>
 #include <tapasco_api.hpp>
@@ -60,7 +61,16 @@ struct job_throughput_t {
     }; }
 };
 
+void signalHandler(int sig) {
+  cerr << "Signal %d received, aborting." << endl;
+  endwin();
+  exit(1);
+}
+
 int main(int argc, const char *argv[]) {
+  // trap ctrl-c
+  signal(SIGINT, signalHandler);
+  try {
     Tapasco tapasco;
     TransferSpeed tp { tapasco };
     InterruptLatency il { tapasco };
@@ -165,5 +175,9 @@ int main(int argc, const char *argv[]) {
     ofstream f(argc >= 2 ? argv[1] : ss.str());
     f << benchmark.dump();
     f.close();
+  } catch (...) {
+    endwin();
+    throw;
+  }
 }
 /* vim: set foldmarker=@{,@} foldlevel=0 foldmethod=marker : */