Re: wait_for_file ?? [who/what/where does fclose()?]

[Michael D Godfrey]

On 09/10/2010 10:01 AM, Shai Ayal wrote:

This part is written using C io anyway.
What happens in C if you close a file descriptor opened by popen?
Shai

Here is all I know (from man popen):
       The return value from popen() is a normal standard I/O stream in all respects  save
       that  it  must  be  closed  with pclose() rather than fclose(3).  Writing to such a
       stream writes to the standard input of the command; the command’s  standard  output
       is  the  same as that of the process that called popen(), unless this is altered by
       the command itself.  Conversely, reading from a "popened"  stream  reads  the  com-
       mand’s standard output, and the command’s standard input is the same as that of the
       process that called popen().

       Note that output popen() streams are fully buffered by default.
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I would definitely use pclose().

Michael