raise - send a signal to the caller

#include <signal.h>
int raise(int sig);

The raise() function sends a signal to the calling process or thread. In a single-threaded program it is equivalent to

kill(getpid(), sig);

In a multithreaded program it is equivalent to

pthread_kill(pthread_self(), sig);

If the signal causes a handler to be called, raise() will return only after the signal handler has returned.

raise() returns 0 on success, and nonzero for failure.

getpid(2), kill(2), sigaction(2), signal(2), pthread_kill(3), signal(7)