Manpages - raise.3

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.

For an explanation of the terms used in this section, see *attributes*(7).

POSIX.1-2001, POSIX.1-2008, C89, C99.

Since version 2.3.3, glibc implements *raise*() by calling *tgkill*(2), if the kernel supports that system call. Older glibc versions implemented *raise*() using *kill*(2).

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

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