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by: Shayan |
last post by:
Is there a boolean flag that can be set atomically without needing to
wrap it in a mutex? This flag will be checked constantly by multiple
threads so I don't really want to deal with the overhead of mutexes or
semaphores. Thanks.
Shayan
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by: Joshua Moore |
last post by:
I'm trying to convert from a lot of invoked code to c# 2.0 SerialPort code.
I can't find a way to set fOutxCtsFlow to true (maybe CTSEnable?) and
fRtsControl = RTS_CONTROL_HANDSHAKE (RtsEnable?). Also, do I need to set
the handshaking? Below is the old and attempted new (that continually gets
a timeout error on read. I upped the read timeout, but it's way too long
NOT for it to be a handshaking or other issue than the readtimeout...
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by: blackstreetcat |
last post by:
consider this code :
int i; //gobal var
Thread1:
i=some value;
Thread2:
if (i==2) dosomething();
else dosomethingelse();
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by: Dave Stallard |
last post by:
Pardon if this is the wrong newsgroup for this question, and/or if this
question is naive.
I have a multi-threaded Windows application in which certain
variables/object fields are shared: one thread may write the variable,
and the other thread read it. The variables in question may have int or
int* types. Question: Is it safe to do this? Or is it possible a read
that happens at the same time as a write may retrieve a scrambled value,...
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by: japhy |
last post by:
Is there a way to read a line (a series of characters ending in a
newline) from a file (either by descriptor or stream) atomically,
without buffering additional contents of the file?
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by: Freedom fighter |
last post by:
Hello,
Is a singleton class the same as an atomic class? I know that a singleton class
can only be instantiated once, but does that concept apply to an atomic class?
Thank you.
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by: arjan321 |
last post by:
Hello all,
I have a strange problem with the .NET serialPort class.
When I write some data to the serialport, not all the data is
immediately send: every once in a while, only ~50 characters of the 64
characters I'm sending gets send.
Then, when I do a write() again, the data gets send. This is
unacceptable behavior for my program.
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by: Keith Lee |
last post by:
All:
I am attempting to compile the perl module Device::SerialPort and get
this error during make --
Manifying blib/man3/Device::SerialPort.3pm
Can't open blib/man3/Device::SerialPort.3pm for writing: Invalid argument
at /usr/lib/perl5/5.8.8/ExtUtils/Command/MM.pm line 132
make: *** Error 22
$ make all
Manifying blib/man3/Device::SerialPort.3pm
Can't open blib/man3/Device::SerialPort.3pm for writing: Invalid argument
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by: Jon Harrop |
last post by:
Can read locks on a data structure be removed safely when updates are
limited to replacing a reference? In other words, is setting a reference an
atomic operation?
I have been assuming that all writes of <=1 word of data are atomic. Is this
actually documented anywhere?
--
Dr Jon D Harrop, Flying Frog Consultancy
http://www.ffconsultancy.com/products/?u
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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: 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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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