[Qt-interest] Does QProcess::readAllStandardOutput have a limit?

[Christian Gagneraud]

On 12/02/2010 07:16 PM, Eric Clark wrote:
> What do you mean by soon? I am not receiving any more calls to my
> slot connected to the readyReadStandardOutput signal. The process
> that is running outputs a bunch of startup text and then goes into
> an infinite loop waiting to receive commands. I have waited a while
> (minutes) after the process was started and I do not receive any
> more signals that the standard output is ready to be read.

Have you tried the QIODevice::Unbuffered flag when you 
setStandardOutputFile() in your sub-process?
It is possible that the output buffer is flushed/drained only when it 
reach a certain water mark level, in that case one solution is to use 
unbuffered output (with potential penalty on the performance), or 
flush/drain your output yourself.

Chris

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Christian Gagneraud,
Electronics and software engineer

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