Content-type: text/html Man page of sigblock

sigblock

Section: System Calls (2)
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NAME

sigblock - Provides a compatibility interface to the sigprocmask function  

LIBRARY

Standard C Library (libc.a)  

SYNOPSIS

int sigblock( int mask );  

PARAMETERS

Specifies the signals to be added to the set of signals currently being blocked from delivery.  

DESCRIPTION

The sigblock() function causes the signals specified by the mask parameter to be added to the set of signals currently being blocked from delivery. The signals are blocked from delivery by logically ORing the mask parameter into the signal mask of the process. Signal i is blocked if the i-th bit in the mask parameter is a value of 1. Only signals with values 1-31 can be masked with the sigblock() function.  

NOTES

It is not possible to block SIGKILL. The system provides no indication of this restriction.

The sigblock() function is provided for compatibility to other UNIX systems. Its function is a subset of the sigprocmask() function.  

RETURN VALUES

On completion, the previous set of masked signals is returned.  

RELATED INFORMATION

Functions: kill(2), sigaction(2), sigpause(3), sigprocmask(2), sigsuspend(2), sigvec(2) delim off


 

Index

NAME
LIBRARY
SYNOPSIS
PARAMETERS
DESCRIPTION
NOTES
RETURN VALUES
RELATED INFORMATION

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Time: 02:40:14 GMT, October 02, 2010