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just a quick question regarding C and processes. In my program, I create another child process and use a two-directional pipe to communicate between the child and parent. The child calls execl() to run yet another program.
My question is: I want the parent to wait n amount of seconds and then check if the program that the child has run has exited (and with what status). Something like waitpid() but if the child doesn’t exit in n seconds, I’d like to do something different.
You can use
waitpid()withWNOHANGas option to poll, or register a signal handler forSIGCHLD.