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Asked: 2026-06-14T14:10:08+00:00

system() function is implemented by using fork() , execve() and wait() functions. I have

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system() function is implemented by using fork(), execve() and wait() functions.
I have heard that fork() function is dangerous in multi-threaded programs.
So, is the system() function also dangerous in multi-threaded programs?

What problems it may cause?

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1 Answer

  1. Editorial Team

    fork is dangerous in threaded programs unless followed by execve. Since only the current thread is forked there’s very little you can do in a forked multi-threaded program other than execve. You should probably make sure you’re not taking any locks after the fork.

    Since system() does fork + exec, it should be safe.

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