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by: Matthew Bell |
last post by:
Hi,
I've got a question about whether there are any issues with directly
calling attributes and/or methods of a threaded class instance. I
wonder if someone could give me some advice on this.
Generally, the documentation suggests that queues or similar constructs
should be used for thread inter-process comms. I've had a lot of
success in doing that (generally by passing in the queue during the
__init__ of the thread) and I can see...
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by: Piotrek Stachowicz |
last post by:
Hello,
I've got 2 databases (both on MS-SQL Sever2k). One of them (remote)
contains table which is often updated. For various reasons I'd like to
maintain a copy on local MSSQLServer. Is there any built-in mechanism which
allows to do such things?! I can do this manually, by examining the remote
table contents, and downloading new stuff (local table cannot be modified in
any other way), but I guess that there is a smarter way. Any ideas?!...
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by: kartik |
last post by:
I open an fstream in read-only mode, read till the end, then try to
sync() before seeking to position 0 & reading again. But the sync
fails. I discovered that clear()ing the stream before the sync causes
the sync to work. Seeking to position 0 before the sync doesn't seem
to help.
If you look at sync() as simply invalidating the read buffer (isn't
that right?), isn't it illogical for it to fail in this situation?
Besides sync()...
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by: Frnak McKenney |
last post by:
I'm using an in-core DataSet as an image of my application's
'database' (a multi-table Access97 mdb file). Updates are made to
the DataTables within the DataSet via forms with bound TextBoxes,
then written to the database... or at least that's what's supposed
to be happening.
Unfortunately, I've discovered that while it appears that when I
create a new record/row I'm successfully updating the Access
database, once the Update is...
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by: narshe |
last post by:
I haven't come across an elegant way to do this yet, and would like to
know what other people have come up with.
There are two tables:
CREATE TABLE EmployeeStatus
(
pkId int not null primary key identity,
status varchar( 50 ) not null
)
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by: Ed L. |
last post by:
I'm curious what the consensus is, if any, on use of fsync on ext3
filesystems with postgresql 7.3.4 or later. I did some recent performance
tests demonstrating a 45%-70% performance improvement for simple inserts
with fsync off on one particular system. Does fsync = true buy me any
additional recoverability beyond ext3's journal recovery?
If we write something without sync'ing, presumably it's immediately
journaled? So even if the DB...
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by: Ferry Boender |
last post by:
Hi,
I'm relatively new to Xlib programming, and I ran into a little problem.
I'm trying to insert keypress events into a X window. The following code
works:
--8<------------------------------------------------------------
#!/usr/bin/python
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by: taleran58 |
last post by:
Hi all.
I'm writting a multithreading program that will update a loacal Access
database.
I'm using OleDB connection to get access to the database from each
thread and my question is: how do I synchronize between threads\ how do
I lock the database so no clashes between threads occurs.
do I have to use a diffrent connection\adapters???
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by: c |
last post by:
Hi every one,
Me and my Cousin were talking about C and C#, I love C and he loves
C#..and were talking C is ...blah blah...C# is Blah Blah ...etc
and then we decided to write a program that will calculate the
factorial of 10, 10 millions time and print the reusult in a file with
the name log.txt..
I wrote something like this
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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...
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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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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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: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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