Computers and Technology, 12.08.2020 20:01 briannaparker11
Suppose we have a program that calls two functions do_f1() and do_f2() in that order.
a. After calling do_f1(), it sends SIGSUR1 signal to its parent.
b. Before calling do_f2 (), it waits for SIGUSR2 signal, which will be sent from another process, so don't worry about who sends the signal SIGUSR2.
You are asked to implement this program and use sigsuspend() to wait for a signal.
// all the necessary libraries are included
do f1() { /* ... */ } /* Suppose these functions are already */
do_f2() { /* ... */} /* implemented for you. So, just use them */
static int sigreceived = 0;
void my_sig_handler (int signo) {
sigreceived = 1;
}
void main() {
struct sigaction act;
sigset_t blockmask, sigmask;
do f1() ;
/* (a) show how to send SIGUSR1 to the parent process */
/* (b) show how to set up the necessary structures and masks and then wait for SIGUSR2 using sigsuspent() */
do_f2();
}
}
Answers: 2
Computers and Technology, 22.06.2019 19:20
Write a program that reads a file consisting of students’ test scores in the range 0–200. it should then determine the number of students having scores in each of the following ranges: 0–24, 25–49, 50–74, 75–99, 100–124, 125–149, 150–174, and 175–200. output the score ranges and the number of students. (run your program with the following input data: 76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189.)
Answers: 3
Computers and Technology, 22.06.2019 23:30
To check spelling errors in a document, the word application uses the to determine appropriate spelling. internet built-in dictionary user-defined words other text in the document
Answers: 1
Computers and Technology, 23.06.2019 22:50
An environmental protection agency study of 12 automobiles revealed a correlation of 0.47 between engine size and emissions. at 0.01 significance level, can we conclude that there is a positive association between the variables? what is the p value? interpret.
Answers: 2
Computers and Technology, 25.06.2019 08:20
The internet backbone is a foundation network linked with
Answers: 1
Suppose we have a program that calls two functions do_f1() and do_f2() in that order.
a. After call...
Social Studies, 27.04.2021 21:40
Mathematics, 27.04.2021 21:40
Mathematics, 27.04.2021 21:40
Health, 27.04.2021 21:40
English, 27.04.2021 21:40
English, 27.04.2021 21:40
History, 27.04.2021 21:40
English, 27.04.2021 21:40