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raise(3) Library Functions Manual raise(3)
raise - send a signal to the caller
Standard C library (libc, -lc)
#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). ┌──────────────────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├──────────────────────────────────────┼───────────────┼─────────┤ │raise() │ Thread safety │ MT-Safe │ └──────────────────────────────────────┴───────────────┴─────────┘
C11, POSIX.1-2008.
POSIX.1-2001, C89. Since glibc 2.3.3, raise() is implemented 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)
Linux man-pages 6.04 2023-03-30 raise(3)
Pages that refer to this page: sigaction(2), signal(2), sigprocmask(2), abort(3), gsignal(3), pthread_kill(3), sigset(3), sigvec(3), signal(7), signal-safety(7)