Implement a threaded version of the tfgets function from Problem 12.31. Your function sh...

Implement a threaded version of the tfgets function from Problem 12.31. Your function should be implemented in a package called tfgets-thread.c. Test your solution using the driver program from Problem 12.31.

Ref prb:p>Implement a version of the standard I/O fgets function, called tfgets, that times out and returns NULL if it does not receive an input line on standard input within 5 seconds. Your function should be implemented in a package called tfgetsproc. c using process, signals, and nonlocal jumps. It should not use the Linux alarm function. Test your solution using the driver program in Figure 12.47.