Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I am writing an API that uses sockets. In the API, I allocate memory for various items. I want to make sure I close the sockets and free the memory in case there is a signal such as Ctrl-C. In researching this, it appears free() is not on the safe function list (man 7 signal) thus, I can’t free the memory inside a signal handler. I can close the socket just fine though. Does any have any thoughts on how I can free the memory? Thank you in advance for your time.
Alternatively, don’t catch the signal and just let the OS handle the cleanup as it’s going to do during process cleanup anyway. You’re not releasing any resources that aren’t tied directly to the process, so there’s no particular need to manually release them.