Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #676
Difficulty: Medium
The first version of the 802.11 protocol was released in 1997, and provided up to 12 MB/s link speeds.
True or False?
Linux & Unix Commands - Search Man Pages

raise(3) [debian man page]

RAISE(3)						     Linux Programmer's Manual							  RAISE(3)

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 only return 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 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at GNU
2012-04-20 RAISE(3)

Check Out this Related Man Page

RAISE(3P)						     POSIX Programmer's Manual							 RAISE(3P)

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
raise - send a signal to the executing process SYNOPSIS
#include <signal.h> int raise(int sig); DESCRIPTION
The raise() function shall send the signal sig to the executing thread or process. If a signal handler is called, the raise() function shall not return until after the signal handler does. If the implementation supports the Threads option, the effect of the raise() function shall be equivalent to calling: pthread_kill(pthread_self(), sig); Otherwise, the effect of the raise() function shall be equivalent to calling: kill(getpid(), sig); RETURN VALUE
Upon successful completion, 0 shall be returned. Otherwise, a non-zero value shall be returned and errno shall be set to indicate the error. ERRORS
The raise() function shall fail if: EINVAL The value of the sig argument is an invalid signal number. The following sections are informative. EXAMPLES
The term "thread" is an extension to the ISO C standard. FUTURE DIRECTIONS
kill(), sigaction(), the Base Definitions volume of IEEE Std 1003.1-2001, <signal.h>, <sys/types.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at . IEEE
/The Open Group 2003 RAISE(3P)

Featured Tech Videos