*
* This function checks if \p STDIN_FILENO was included by in the read fd set
* of \a s during the previous pre_select call. If yes, and \p STDIN_FILENO
*
* This function checks if \p STDIN_FILENO was included by in the read fd set
* of \a s during the previous pre_select call. If yes, and \p STDIN_FILENO