raise(3) Library Functions Manual raise(3)NAME
raise - Sends a signal to the executing process or thread
LIBRARY
Standard C Library (libc.so, libc.a)
SYNOPSIS
#include <signal.h>
int raise(
int signal );
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
raise(): XSH5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Specifies a signal number.
DESCRIPTION
The raise() function sends the signal specified by the signal parameter to the invoking thread. In single-threaded programs this is equiva-
lent to:
kill(getpid(), signal);
The behavior of the raise() function is equivalent to:
pthread_kill(pthread_self(), signal);
RETURN VALUES
Upon successful completion of the raise() function, a value of 0 (zero) is returned. Otherwise, a nonzero value is returned and errno is
set to indicate the error.
ERRORS
The raise() function sets errno to the specified values for the following conditions: The value of the signal parameter is an invalid sig-
nal number.
RELATED INFORMATION
Functions: kill(2), sigaction(2)
Standards: standards(5) delim off
raise(3)
Check Out this Related Man Page
RAISE(3) Linux Programmer's Manual RAISE(3)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.
CONFORMING TO
C89, C99, POSIX.1-2001.
NOTES
Since version 2.3.3, glibc implements raise() by calling tgkill(2), if the kernel supports that system call. Older glibc versions imple-
mented 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 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2012-04-20 RAISE(3)
I am trying to send a SIGUSR1 to a set of process. Please tell
me how to do. I've tried the system call raise(int sig) but it just
raise a signal of to the 'current process.'
My program is about a network chat server. When a client
connects in, The main process will fork a new process... (1 Reply)
Hi all,
I am a newbie to unix programming using C..
So i would like to have a few simple C programs to start off with..
I wanted programs on learning ,
abort,kill and raise,alarm and pause,I would also like to know how to use the vfork() in a prg
It would be really great if i can have... (1 Reply)