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.c - 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 i. Print out Parent about to signal child j. 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_Handler( ) 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 g. Send a signal, SIGKILL to each child process to kill by using kill( ) - After fork: h. Wait for SIGCHLD until all children are dead

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 1. FILE NAME: hw5 1.c -Before fork: Use SIGUSR1 and add this signal to the signal mask b. a. 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 i. Print out "Parent about to signal child... j. Send the SIGUSR1 to the child k. Exit