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by: Markus Franz |
last post by:
Hi.
I created a little script:
for currenturl in sys.argv:
pid = os.fork()
if pid == 0:
signal.alarm(10)
do_something() # placeholder for the download and print
routine
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by: Bob Swerdlow |
last post by:
My application starts up a number of processes for various purposes using:
self.popen = popen2.Popen3("/usr/local/bin/python -O "myscript.py")
and then shuts them down when appropriate with
os.kill(self.popen.pid, signal.SIGTERM)
Everything works fine on MacOSX. However, I'm doing a port to Solaris (so I
can run it on my web site) and find that the child processes are not
stopping! Solaris is creating TWO new processes: one for the SHELL...
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by: Rech |
last post by:
Hi,
I need a little help here managing child processes in Python. I'm not so
skilled in system programming so I hope you can give me some good
suggestions.
I have a very CPU and memory intensive task that has to be repeated many
times (with different input parameters). So I've thought to write a
Python script that create a child process, wait for it to finish and
then starts again another child with different parameters.
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by: Dave Kirby |
last post by:
I am working on a network management program written in python that has
multiple threads (typically 20+) spawning subprocesses which are used
to communicate with other systems on the network. This runs fine for a
while, but eventually slows down to a crawl. Running sar shows that
when it is running slowly there is an exceptionally large number of
minor page faults - there are continuously 14000 faults/sec, with a
variation of about...
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by: Jason Godden |
last post by:
Hi All,
I've written a few C functions in the version 1 format as well as some SPI
based backend bits and I'm curious as to how PG treats these items when used
within plpgsql.
The set of functions control external processes. One function is called with
various items governed by the db, does a fork and then execl to from the
child to start a new process. Whilst it's not posix i ignore the SIGCHLD
signal and let the parent process...
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by: Jeremy |
last post by:
I have a core VB service that monitors a database, and based on data in the
records will execute code to send email notifications.
Problem:
I don't want my main program code to halt and wait for this execution... we
need immediate execution of all notification processes and would prefer to
spawn multiple instances generating emails at one time.
Solution ?
I took a look at threading, and at first it looked to be the answer.
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by: Jason Zheng |
last post by:
This may be a silly question but is possible for os.wait() to lose track
of child processes? I'm running Python 2.4.4 on Linux kernel 2.6.20
(i686), gcc4.1.1, and glibc-2.5.
Here's what happened in my situation. I first created a few child
processes with Popen, then in a while(True) loop wait on any of the
child process to exit, then restart a child process:
import os
from subprocess import Popen
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by: bhunter |
last post by:
Hi,
I've used subprocess with 2.4 several times to execute a process, wait
for it to finish, and then look at its output. Now I want to spawn
the process separately, later check to see if it's finished, and if it
is look at its output. I may want to send a signal at some point to
kill the process. This seems straightforward, but it doesn't seem to
be working.
Here's my test case:
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by: rocco.rossi |
last post by:
I'm using the Python processing module. I've just run into a problem
though. Actually, it's a more general problem that isn't specific to
this module, but to the handling of Unix (Linux processes) in general.
Suppose for instance that for some reason or another, after forking
several child processes, the main process terminates or gets killed
(or segfaults or whatever) and the child processes are orphaned. Is
there any way to automatically...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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 effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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