473,386 Members | 1,699 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,386 software developers and data experts.

question on multithreading, pipes

hello,

I have written a script which is performing some tasks in
multithreading mode: the main thread is opening a connection to a
distant server and all the threads that I start will have to perform
actions on the remote server using the connection initiated by the main
thread. At first sight, the only way I could achieve that in a proper
manner (ie without having to open a connection to the remote server in
every single thread and close it at the end of the thread) would be to
use a pipe that I would use in all the threads, for example:
* main thread:
fw, fr = os.popen2('/bin/ksh')
fw.write('Sinit')
etc...
* other threads:
fw.write('perform action')
etc...

but if I do that, I need to queue the events, which means I have to
serialize the jobs perform by the threads, which is clearly not what I
want as I am using threads :-)
so my question is: how could I get around this without giving up
multithreading ?
any help appreciated.
thanks,
JY


Jul 18 '05 #1
0 1430

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
by: Christian Hammers | last post by:
Hello I would like to call a unix shellscript from within a PHP script and - write data to its STDIN - read data from its STDOUT *and* STDERR - get its exit code afterwards proc_open seems...
1
by: dixp | last post by:
I'm new to writing multithreaded apps and I have a design question. I have a winforms app and a class which has a method that does processing which is time intensive. I want the user to be able...
11
by: Mark Yudkin | last post by:
The documentation is unclear (at least to me) on the permissibility of accessing DB2 (8.1.5) concurrently on and from Windows 2000 / XP / 2003, with separate transactions scope, from separate...
9
by: Hans J?rg Brinksmeyer | last post by:
Hi, does anyone have an idea for this problem: I use anonymous pipes to steer a console program under Win2000 with a second 'steering aplication'. The stdin and output are redirected to...
2
by: Rich | last post by:
Hello, I have set up a multithreading routine in a Test VB.net proj, and it appears to be working OK in debug mode and I am not using synchronization. Multithreading is a new thing for me, and...
7
by: Ray | last post by:
Hello, Greetings! I'm looking for a solid C++ multithreading book. Can you recommend one? I don't think I've seen a multithreading C++ book that everybody thinks is good (like Effective C++ or...
3
by: ZhukovL | last post by:
I'm having some trouble implementing the handling of multiple pipes in a shell I'm writing. I was hoping someone could point me in the right direction because I really cant see where I'm going...
1
by: dgk | last post by:
I trying to use a named pipe but can't figure out how to get the callback to work: Module Module1 Private ps As System.IO.Pipes.NamedPipeServerStream Public Sub main()...
7
by: andrewb | last post by:
Hi all, Having some trouble using named pipes and Visual Basic .NET and would appreciate and help you could offer. Essentially I am trying to develop a simple client/server application that...
0
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.