Send a signal to a thread
#include <signal.h> int pthread_kill( pthread_t thread, int sig );
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_kill() function sends the signal sig to the thread thread. The target thread and calling thread must be in the same process. If sig is zero, error checking is performed but no signal is sent.
POSIX 1003.1 THR