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by: Bastian Hammer |
last post by:
Hi
I´m wondering why there are so few examples with Semaphore.
Is it obsolete?
I´ve got a Class Data.
It offers 2 Threads methods for updating, editing, .. a private
dictionary.
Now I have to make sure, that both threads are synchronal,
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by: rushik |
last post by:
Hello all,
I m facing an interesting problem related to semaphore in php.
We are using a huge business application running on LAMP. For database
operations we are maintaining centralized DB manager classes in php
which perform all the single table related activity. Before inserting
new record we are acquiring semaphore on specific key (all the tables
are having seprate sem keys), insert the record and release the
semaphore.
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by: marvind |
last post by:
I tried using a Semaphore class (have included the full listing
reproduced from article Figure 1 at the end of this email) in .NET 1.1.
It works fine most of the time, however, I see the following error
occassionally:
08/28/2005 17:32:42.82, Verbose, QueryObject.MergeSubQuery,
Exception:
Too many posts were made to a semaphore in mscorlib.
Server stack trace:
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by: bokiteam |
last post by:
Hi All,
I am developing a WinCE project, when I include datagrid, it says no
define..
could you please advice? it works on Win32 project by the same code...
Thank you very much for you help!
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by: Unni |
last post by:
Hello all,
I m facing a memory related problem with semaphores. Our business
application uses semaphores extensively and the limit imposed by the OS
on the number of semaphores that can exist on the system is only 128.
This could be increased to a higher value but that would not be a
permanant solution to my belief. We are using the sem_get, sem_acquire
php functions. After the use we are releasing the semaphore by using
sem_release.
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by: techi_C |
last post by:
Hi
I'm getting a problem while removing semaphore from system.
Before removing semaphore I'm checking the usage count of a smaphore.
// checking usage count
usage_count = semctl(sem_ptr->semid, 1, GETVAL, NULL);
if( usage_count 1 )
// return don't remove semaphore
else
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by: cranfic |
last post by:
Please help...
To make it simple, I have a simple test C program which calls my
semphore library functions only. (It doesn't call any db2 function at
all). And the following is the test program:
#include "hasem.h"
#include <semaphore.h>
#include <stdio.h>
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by: Samuel R. Neff |
last post by:
I'm having trouble creating a Semaphore with read-access rights for
everyone. Originally I was trying to use this code:
semaphore = new Semaphore(maxLocks, maxLocks, "RwLock#" + name);
but when using that code to create a Semaphore instance for an
existing system semaphore (i.e., the second time the code gets hit), I
get an UnauthorizedAccessException. So I tried specifying that
everyone has read rights:
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by: GHUM |
last post by:
hello,
in my application I am using
hSem = win32event.CreateSemaphore (None, 1,
1,"stringincludinginterfaceandport")
rt=win32event.WaitForSingleObject (hSem, 0)
if rt != win32event.WAIT_TIMEOUT:
really_do_start_my_app()
else:
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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: 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: 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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
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: 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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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