feat(src/externals/single-application/SingleApplication): log abnormally exit

linphone-desktop/src/externals/single-application/SingleApplication.cpp

@@ -21,6 +21,7 @@
 // THE SOFTWARE.
 
 #include <cstdlib>
+#include <iostream>
 
 #include <QtCore/QDir>
 #include <QtCore/QProcess>
@@ -52,6 +53,8 @@ static const char SecondaryInstance = 'S';
 static const char Reconnect = 'R';
 static const char InvalidConnection = '\0';
 
+using namespace std;
+
 // -----------------------------------------------------------------------------
 
 SingleApplicationPrivate::SingleApplicationPrivate (SingleApplication *q_ptr) : q_ptr(q_ptr) {
@@ -250,6 +253,8 @@ void SingleApplicationPrivate::connectToPrimary (int msecs, char connectionType)
       delete sharedMem.back();
       sharedMem.pop_back();
     }
+
+    cout << "[PROCESS ABNORMALLY TERMINATED]: " << signum << endl;
     ::exit(128 + signum);
   }