Construct a mask for a signal number
#include <unix.h> #define sigmask(s) (1L<<((s)-1))
- The signal that you want to create a mask for. For more information, see POSIX signals in the documentation for SignalAction().
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The signal mask.
Use of these interfaces should be restricted to only applications written on BSD platforms. Use of these interfaces with any of the system libraries or in multithreaded applications is unsupported.