Is is necessary to create a Mutex for a read-only thread and a write-only thread?

Posted by httpinterpret on Stack Overflow See other posts from Stack Overflow or by httpinterpret
Published on 2010-05-09T14:17:17Z Indexed on 2010/05/09 14:18 UTC
Read the original article Hit count: 118

Filed under:

multithreading

|

signals

There are 2 threads,one only reads the signal,the other only sets the signal.

Is it necessary to create a mutex for signal and the reason?

© Stack Overflow or respective owner

Related posts about multithreading

C++ Multithreading on Unix

as seen on Programmers - Search for 'Programmers'
I have two related questions: 1) Are there any good books for multithreading in C++, especially now that C++11 contains multithreading in the standard library? 2) I have the Wrox Programming on Unix book (1000 pages fat red one) and within it, it uses the Unix Thread class. How does this code relate… >>> More
what are the difficulties of operating system multithreading?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am reading a book that compares two ways of implementing threads, Middleware Threads and OS Threads. I have a question about these sentences: "A difficulty of operating system multithreading, however, is performance overhead. Since it is the operating system that is involved in switching threads… >>> More
TCP multicast and multithreading

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to come up with clients that can multicast to other clients reliably. That implies I'll be using TCP to connect reliably between clients within a multicast group. Doesn't that come up to n^2 number of connections? That seems a little silly to me. Wouldn't/shouldn't there be a way to more easily… >>> More
Multithreading recommendation based on program description

as seen on Stack Overflow - Search for 'Stack Overflow'
I would like to describe some specifics of my program and get feedback on what the best multithreading model to use would be most applicable. I've spent a lot of time now reading on ThreadPool, Threads, Producer/Consumer, etc. and have yet to come to solid conclusions. I have a list of files (all… >>> More
How to achieve multithreading using JavaScript with IE6?

as seen on Stack Overflow - Search for 'Stack Overflow'
How to achieve multithreading using JavaScript with IE6? Is there a third party library to do this? >>> More

Related posts about signals

Is 37 Signals business advice applicable only to those with a captivated audience already eg courtes

as seen on Stack Overflow - Search for 'Stack Overflow'
I think that most of the advice that comes from 37 Signals is fascinating. I ask this question as i can't help also thinking that the some of the principals will only pull in customers if you have a fan base to call on such as the Ruby On Rails evangilists? >>> More
Scanf with Signals

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a signal that blocks SIGINT and basically says "Sorry, you can't quit.\n" The issue is this can occur during a scanf. When this occurs during a scanf, scanf takes in the printf as input. How can I do a printf that will cause scanf to basically hit the enter key automatically. I don't care… >>> More
Functions connected to signals in QtScript (on Qt 4.5.2) are not firing

as seen on Stack Overflow - Search for 'Stack Overflow'
I've injected into a proprietary Qt (4.5.2) application, added my own compatible build of QtScript, and have managed to get access to all the signals I need. However, when connecting to them (via QtScript) my functions are never called. I've come up with a few theories for why this is and I've tested… >>> More
MPI signal handling

as seen on Stack Overflow - Search for 'Stack Overflow'
When using mpirun, is it possible to catch signals (for example, the SIGINT generated by ^C) in the code being run? For example, I'm running a parallelized python code. I can except KeyboardInterrupt to catch those errors when running python blah.py by itself, but I can't when doing mpirun -np 1… >>> More
Operating systems theory -- using minimum number of semaphores

as seen on Programmers - Search for 'Programmers'
This situation is prone to deadlock of processes in an operating system and I'd like to solve it with the minimum of semaphores. Basically there are three cooperating processes that all read data from the same input device. Each process, when it gets the input device, must read two consecutive data… >>> More