At 16:28 2003-04-03, you wrote:
Hello,
I have a question about pipe behavior. I wrote a simple program that does a printf, sleeps for 5 seconds and then another printf. If I run the program with the following way: $ ./simple | cat The output is delayed until the program finished. I guessed that the pipe is buffered and doesn't flush until it is closed when the program ends. But then I ran the same program as an emacs subprocess and attached a buffer to it. In this scenario the first printf is displayed, 5 seconds pass and then the second printf is displayed. Emacs also uses pipes so I do not understand why the behavior is different.
Pipes don't buffer in the manner you describe, but the standard I/O library does when its output is directed to a pipe or a plain file.
Are you sure that Emacs uses pipes and not ptys (pseudo-ttys)?
Which Emacs are you using? Cygwin or Windows?
Thanks Steven Kilby
Randall "We don't need no stinkin' disclaimers" Schulz
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