U++ forum: Welcome to the forum

Status & Roadmap

Authors & License

Funding Ultimate++

Search on this site

Search in forums

Home » Extra libraries, Code snippets, applications etc. » C++ language problems and code snippets » capturing stdout/err/in of subprocess

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Return to the default flat view

Create a new topic

Submit Reply

Re: capturing stdout/err/in of subprocess [message #1754 is a reply to message #1753]

Fri, 17 March 2006 23:25

mirek is currently offline

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

gprentice wrote on Fri, 17 March 2006 17:11

Quote:

There are no pipe functions I am aware of (in both Linux and Win32) that would indicate the "waiting for the stdin" (or, in fact "subprocess is blocked because of empty stdin") state.

Standard input behaves (from master process point of view) just like output file.

Then again, I might have missed something.

Why do you need to know the process is waiting for input? If you send characters to stdin the OS is going to buffer them until the process asks for them. From what I can tell, if you were to try and hold off sending a character until the previous character had been processed, the application would run too slowly because of all the context switching. It seems to me it's the applications responsibility to keep up with the input if it knows there's a lot of it. Maybe you could try PeekConsoleInput if you have the stdin handle, to see if stdin is "empty" ?

Graeme

Unfortunatly, PeekConsoleInput seems to deal with existing Win32 console - not something would help us as we are here trying to implement ours...

Mirek

Report message to a moderator

Send a private message to this user

[Message index]

		capturing stdout/err/in of subprocess By: wilho on Mon, 13 March 2006 14:21
		Re: capturing stdout/err/in of subprocess By: mirek on Mon, 13 March 2006 14:50
		Re: capturing stdout/err/in of subprocess By: gprentice on Tue, 14 March 2006 08:31
		Re: capturing stdout/err/in of subprocess By: mirek on Tue, 14 March 2006 09:22
		Re: capturing stdout/err/in of subprocess By: wilho on Tue, 14 March 2006 08:53
		Re: capturing stdout/err/in of subprocess By: gprentice on Tue, 14 March 2006 10:43
		Re: capturing stdout/err/in of subprocess By: mirek on Tue, 14 March 2006 10:54
		Re: capturing stdout/err/in of subprocess By: gprentice on Tue, 14 March 2006 11:16
		Re: capturing stdout/err/in of subprocess By: lundman on Tue, 14 March 2006 12:00
		Re: capturing stdout/err/in of subprocess By: mirek on Tue, 14 March 2006 12:04
		Re: capturing stdout/err/in of subprocess By: gprentice on Wed, 15 March 2006 00:09
		Re: capturing stdout/err/in of subprocess By: mirek on Wed, 15 March 2006 09:59
		Re: capturing stdout/err/in of subprocess By: mr_ped on Fri, 17 March 2006 10:52
		Re: capturing stdout/err/in of subprocess By: mirek on Fri, 17 March 2006 12:08
		Re: capturing stdout/err/in of subprocess By: fudadmin on Fri, 17 March 2006 12:11
		Re: capturing stdout/err/in of subprocess By: mirek on Fri, 17 March 2006 12:23
		Re: capturing stdout/err/in of subprocess By: gprentice on Fri, 17 March 2006 23:11
		Re: capturing stdout/err/in of subprocess By: mirek on Fri, 17 March 2006 23:25
		Re: capturing stdout/err/in of subprocess By: gprentice on Fri, 17 March 2006 23:44
		Re: capturing stdout/err/in of subprocess By: lundman on Sat, 18 March 2006 01:01
		Re: capturing stdout/err/in of subprocess By: mirek on Sat, 18 March 2006 08:47
		Re: capturing stdout/err/in of subprocess By: wilho on Sat, 18 March 2006 14:33
		Re: capturing stdout/err/in of subprocess By: lundman on Sat, 18 March 2006 15:05

Previous Topic:	New EH handling in MinGW
Next Topic:	DLL and U++ type

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

PDF

]

Current Time: Sat May 04 11:44:30 CEST 2024

Total time taken to generate the page: 0.02927 seconds