table of contents
raise(3) | Library Functions Manual | raise(3) |
NAME¶
raise - send a signal to the caller
LIBRARY¶
Standard C library (libc, -lc)
SYNOPSIS¶
#include <signal.h>
int raise(int sig);
DESCRIPTION¶
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.
RETURN VALUE¶
raise() returns 0 on success, and nonzero for failure.
ATTRIBUTES¶
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
raise () | Thread safety | MT-Safe |
STANDARDS¶
POSIX.1-2001, POSIX.1-2008, C99.
NOTES¶
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).
SEE ALSO¶
getpid(2), kill(2), sigaction(2), signal(2), pthread_kill(3), signal(7)
2022-12-29 | Linux man-pages 6.03 |