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Shell Programming and Scripting
Integer expression expected
Post 302912941 by Don Cragun on Tuesday 12th of August 2014 11:18:40 PM
08-13-2014
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LEARN ABOUT ULTRIX
sigaddset
sigsetops(3) Library Functions Manual sigsetops(3) Name sigemptyset, sigfillset, sigaddset, sigdelset, sigismember - manipulate signal sets (POSIX) Syntax #include <signal.h> int sigemptyset(set) sigset_t *set; int sigfillset (set) sigset_t *set; int sigaddset(set,sig) sigset_t *set; int sig; int sigdelset(set,sig) sigset_t *set; int sig; int sigismember(set,sig) sigset_t *set; int sig; Description The functions manipulate signal sets used by the other POSIX signal functions The function initializes the signal set pointed to by the argument set so that all signals are excluded. The function initializes the signal set pointed to by the argument set so that all signals are included. The and functions respectively add and delete the individual signal specified by the value of the argument sig from the signal set pointed to by the argument set. The function tests whether the signal specified by the value of the argument sig is a member of the set pointed to by the argument set. Return Values Upon successful completion, the function returns a value of 1 if the specified signal is a member of the set. If it is not a member of the set, a value of 0 is returned. If the or functions fail a -1 value is returned and errno is set to indicate the reason. Diagnostics The function will fail and the signal mask will remain unchanged if one of the following occur: [EINVAL] The value of the sig argument is not a valid signal number See Also sigprocmask(3), sigaction(3), sigsuspend(3), sigpending(2) sigsetops(3)