[MAN] raise

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RAISE

Section: Linux Programmer's Manual (3)
Updated: 2015-08-08
Index Return to Main Contents

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NAME

raise - send a signal to the caller  

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

 

CONFORMING TO

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

NOTES

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).  

SEE ALSO

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

COLOPHON

This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

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Index

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ATTRIBUTES

CONFORMING TO

NOTES

SEE ALSO

COLOPHON

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