There is nothing mentioned about perl's synchronous open and asynchronous open. If you really want to know more about you can have the source code of IPC::open3 module. even they have not specified anything about synchronous open.
In reply to Re: Best practice for sychronous output handling using open3()?
by jesuashok
in thread Best practice for sychronous output handling using open3()?
by OfficeLinebacker
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