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 want to use the method system() in a (non-main) thread(pthread) in C++. For example,
system("/path/to/some/script.sh");
Is this permitted? If so, is it safe and are there any precautions I should take?
The reason I’m asking is that I’ve had the following comment from a code reviewer:
“The rule is system() can only be called from a single-threaded process. I think you need to move your new code to a separate application.”
Is the first sentence of the comment valid?
As of GNU/Linux implementation of
system, it modifies the process signal mask during command execution. In multithreaded program, we’re in for nasty surprises, e.g. if another threadforks at the same time.