Reader-Writer Locks

With C++14 came reader-writer locks. The idea is straightforward and promising. Arbitrary reading threads can access the critical region at the same time, but only one thread is allowed to write.

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Tags: lock
Comments 3Views: 30045

Prefer Locks to Mutexes

If the previous post showed something, it's, that you should use mutexes with great care. That's why you should wrap them in a lock.

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Tags: lock, mutex
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The Risks of Mutexes

Usage of mutexes seems extremely simple. There is a critical section in the code, which can only be accessed by a single thread at any point  of time. It's ensured by a mutex m. The calls m.lock() and m.unlock() guarantee this exclusivity. But, the devil is in the details.

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Tags: mutex
Comments 1Views: 13022

Source Code Repository

I created a repository for the source code. It's on GitHub and has the name ModernesCppSource:
https://github.com/RainerGrimm/ModernesCppSource.git

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Comments 1Views: 10705

Thread Creation

Thread creation is easy. Call  std::thread, and a new thread will be created. The thread gets a work package and starts it immediately. The creator of the thread (the Parent) has to take care of the created thread (the child). The Parent should wait until its child is done with its task or has to detach itself from its child. The child thread can get its payload task arguments by copy or by reference.

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Comments 9Views: 22271

Threads Sharing Data

One of the biggest challenges of thread-management begins when the threads share non-const data

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Thread Arguments

A thread gets its data by copy or by reference. Per default, you should use by copy. Why? In case your thread gets its data by reference, you have to be extremely careful about the lifetime of the arguments.

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Comments 2Views: 11836

Threads Lifetime

The parent has to take care of its child. This simple idea has big consequences for a thread lifetime. The following program starts a thread, that displays its ID.

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Comments 24Views: 19720

For the Proofreaders and the Curious People

After a lot of discussion with my proofreaders, we finally have a process to publish the articles.

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Comments 11Views: 6019

Multithreading in Modern C++

Contents[Show]

With the new C++11 Standard, C++ faces the first time the challenges of multicore architectures. The 2011 published standard defines how a C++ program has to behave in the presence of multiple threads. The C++11 multithreading capabilities are composed of two components. This is on the one hand, the defined memory model, which is on the other hand, the standardized threading interface.

 

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Comments 121Views: 93988

My Newest E-Books

Course: Modern C++ Concurrency in Practice

Course: C++ Standard Library including C++14 & C++17

Course: Embedded Programming with Modern C++

Course: Generic Programming (Templates)

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