For a program I am designing, which involves handling the keyboard input Ctrl^c (SIGINT), it is taking ages for the program to actually recognise and perform the corresponding action whenever I run it and hit Ctrl^C at the CL. I have to do at least 3 Ctrl^Cs before the program will actually register and handle SIGINT appropriately.

Currently Im using signal() to map the various types of unix signals (i.e SIGINT, SIGSTSP) to handler functions I have defined in my program. What the handler functions do is call exit(0) (which quits the program) whenever the corresponding signal has been received by the program. As I mentioned before, it is taking several Ctrl^Cs to get the handler functions to be invoked, when it should just be 1 Ctrl^C.

Im unsure what could be causing my problem. Please feel free to make any suggestions.