gadget2/reference/interrupthandler_8h_source.html

 #ifndef interrupthandler_h

 #define interrupthandler_h


 void registerInterrupts(volatile int* interrupted);

 void interruptHandler(int signal);


 #endif

registerInterrupts
void registerInterrupts(volatile int *interrupted)
This is the function that registers the interrupt handler.

interruptHandler
void interruptHandler(int signal)
This is the function that gets called when an interrupt occurs.