Signal          1088 modules/up/src/Core/sys/File.cc     sig = new Signal("ttou", NULL);
Signal          1089 modules/up/src/Core/sys/File.cc     sig = new Signal("ttin", NULL);
Signal          1090 modules/up/src/Core/sys/File.cc     sig = new Signal("tstp", NULL);
Signal          1110 modules/up/src/Core/sys/File.cc     sig = new Signal("hup", NULL);