Compute this in C.

1. Write a program in which the child process waits for parent process to complete some actions. The detailed actions are as follows (refer the procexec/fork sig sync.c which has reverse roles):40 points FILE NAME: hw5 1. Before fork a. Use SIGUSR1 and add this signal to the signal mask b. Use "signal(to call "signal-handler(that prints out "Here is the Signal Handler" Child process c. Suspend child process waiting for a signal from the parent d. Prints out "Child received a signal e. Restore signal mask from the backup list f. Exit Parent process g Print out "Parent started... h. Sleep 3 seconds L Print out "Parent about to signal child." . Send the SIGUSR1 to the child k. Exit 2. Write a program that reaps dead children via a handler for SIGCHLD as follows (Refer procexec/multi SIGCHLD.c):40 points FILE NAME: hw5 2.c Signal Handler for SIGCHLD a. This handler calls wait() to release dead child process ID b Lengthen execution of handler using sleep() for 3 seconds -Before fork c. Call signal) with the signal handler, signal Hander) d. Block SIGCHLD to prevent its delivery if a child terminates before the parent commences the sigsuspend) loop Child Process e. Sleep as given by the inputs f. Print out child PID - Parent Process & Send a signal, SIGKILL to each child process to kill by using kil) After fork h. Wait for SIGCHLD until all children are dead