truct sigaction actA, actB; igset_t oldset; igset_t addset; igemptyset(&addset); igaddset(&addSet,SIGUSR1); igprocmask(SIG_BLOCK, &addSet,&oldset); //-- Not using oldset here ctA.sa_handler=handler; ctA. sa_flags=0; igemptyset(&actA.sa_mask); igaction(SIGTERM,&actA, (struct sigaction *)0); ct all the signals that will be blocked during the execution of handler() after the successful execution of this code.
truct sigaction actA, actB; igset_t oldset; igset_t addset; igemptyset(&addset); igaddset(&addSet,SIGUSR1); igprocmask(SIG_BLOCK, &addSet,&oldset); //-- Not using oldset here ctA.sa_handler=handler; ctA. sa_flags=0; igemptyset(&actA.sa_mask); igaction(SIGTERM,&actA, (struct sigaction *)0); ct all the signals that will be blocked during the execution of handler() after the successful execution of this code.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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