| |
by: Gary Robinson |
last post by:
In some code we're writing we're making an assumption, and I'd like to
confirm that the assumption is valid.
Suppose a signal arrives while a file is being written, and the signal
handler explicitly raises a SystemExit exception.
My understanding is that the C-level I/O code will continue and the signal
won't be processed until the end of the atomic python interpreter
instruction that invoked that C code.
|
by: rh0dium |
last post by:
Hi all,
Another newbie question. So you can't use signals on threads but you
can use select. The reason I want to do this in the first place it I
need a timeout. Fundamentally I want to run a command on another
machine, but I need a timeout. I have to do this to a LOT of machines
( > 3000 ) and threading becomes necessary for timeliess. So I created
a function which works with signals ( until you throw threading at it..
) but I...
|
by: Martin McCormick |
last post by:
A C program contains several signal statements to remove a
lock file if the program gets killed:
/*Set up interrupt handler to catch ctrl-C so that lock file can be removed.*/
signal(SIGINT,crash);
signal(SIGBUS,crash);
signal(SIGSEGV,crash);
This part works. Those signals cause the "crash.c" module to
run and get rid of the lock. Is there a standard way to also print
|
by: Eric Boutin |
last post by:
Hi ! currently reading C docs, I think I'm reading docs about the stdc lib,
but I'm not shure.. it talks about signals, does *all* OS implement the
signal function, and use it well ? I mean.. I know Unixes do it, but what
about windows ? does it implements all SIG* signal promptly ?
Thanks !
-Eric Boutin
|
by: Jackie |
last post by:
Hi everyone,
I'd like to know when and how signals are used (e.g. SIGFPE, SIGABRT,
SIGTERM, SIGSEGV, SIGINT)? Thank you so much.
|
| |
by: Sven |
last post by:
Hi,
I found a strange behaviour when using the time() function from time.h.
Sometimes when it is called, it does not show the correct time in
seconds, but an initial value. This time seem to be the time when the
program was started the first time.
My platform is a DEC machine with Tru64 onboard.
A possible explanation could be, that the time() function is called
|
by: Adrian Casey |
last post by:
I have a multi-threaded python application which uses pexpect to connect to
multiple systems concurrently. Each thread within my application is a
connection to a remote system. The problem is when one of the child
threads runs a command which generates an unlimited amount of output. The
classic example of this is the "yes" command. If you
execute "pexpect.run('yes')", your cpu will sit at 100% forever.
Here is a simple multi-threaded...
|
by: david |
last post by:
I'm developing a program that runs using an asyncore loop. Right now
I can adequately terminate it using Control-C, but as things get
refined I need a better way to stop it. I've developed another
program that executes it as a child process using popen2.Popen4(). I
was attempting to use signals to stop it (using os.kill()) but I keep
running into a problem where sending the signal causes an infinite
loop of printing the message...
|
by: thagor2008 |
last post by:
Is the behaviour of throwing exceptions in a unix signal handler
defined?
eg:
void sighandler(int sig)
{
... do something
throw myobj;
}
|
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...
|
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: 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...
|
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...
|
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();...
|
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...
|
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
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
| |
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...
|
