All Questions
Tagged with c++ concurrency
65
questions
2
votes
1
answer
56
views
A Simple BlockingQueue implementation in C++
I'm just dusting off my C++ knowledge in area of multithreading.
I started with implementing a producer-consumer pattern inspired by https://jenkov.com/tutorials/java-util-concurrent/blockingqueue....
- 31
2
votes
1
answer
94
views
Multi Threaded File Processing C++
Background:
The program reads 1000000 lines in the file. Every four line will be parsed into an object in a vector. If it has 2 objects with the same name, it will drop 1 object and increment one of ...
- 23
2
votes
1
answer
839
views
Efficient parallelization of small tasks
Problem statement: Consider a scenario where a vector of very small tasks, each encapsulated within a class 'Task' with a thread-safe method Task::process(), needs to be efficiently processed in ...
- 121
4
votes
4
answers
2k
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Yet another shared_ptr implementation for learning purposes
C++ shared_ptr implemented as a coding practice and learning purposes.
It uses std::shared_ptr interface.
Basic tests are included (using single header Catch 2)
Some methods are omitted to keep the ...
- 141
4
votes
1
answer
126
views
Packet generation and consumption
I have the following simplification of a program which consists of 2 threads. One thread pushes packets to the back of a deque while another waits for user input before performing a "heavy" ...
- 369
6
votes
1
answer
908
views
Simple, fool-proof pattern to execute tasks in parallel
Assume I have a type task_info that stores the task-specific data needed to execute the task. A std::vector of those is built ...
- 233
3
votes
2
answers
292
views
atomic spinlock mutex class
This here is the follow-up to this question. I was recommended to implement a Lockable type (similar to std::mutex) that can work with ...
- 935
2
votes
1
answer
186
views
C++20 simple RwSeqLock
I recently discovered the atomic wait/notify mechanism in C++20 and wrote this readers-writer lock in the style of Linux kernel Seqlock. Writes have to be inside a lock/unlock, while reads are ...
- 23
2
votes
1
answer
132
views
Thread Pool Class
I have a thread_pool class, that mimics std::thread. (I would have liked std to have a pool, but alas that is not the case.)
thread_pool.h
...
- 462
4
votes
1
answer
841
views
Thread Safe Queue
I have a thread safe queue in my library c9y. It is generally used as a task queue in the task_pool class, but in can be used for any producer / consumer problem.
queue.h
...
- 462
2
votes
1
answer
477
views
Sender/Receiver threads using std::unique_lock and std::condition_variable
The code below is a sender/receiver setup in C++ where the sender is in one thread, the receiver is in another, and the data being sent/received is "shared" (global). The code uses the ...
- 79
2
votes
1
answer
2k
views
C++20 Multi-queue Thread Pool with Work Stealing
This is a follow up to my previous post which also follows up on my first post regarding my thread pool implementation. I have since made some further changes and attempted to improve performance with ...
- 420
3
votes
1
answer
274
views
Lock-free, thread-safe trie container
This is a Trie data structure for mapping strings to integers or pointers in O(n) time. Based on the idea that we never delete anything from the container, we can perform concurrent read/write ...
- 421
5
votes
2
answers
2k
views
C++20 Single Queue Thread Pool
This is a follow up to my previous post. I've made a number of improvements to the thread pool and corrected some bugs as well.
The most up to date version of the code is available on my Github.
I ...
- 420
2
votes
1
answer
3k
views
C++14 Lock-free Multi-producer, Multi-Consumer Queue
Introduction
This is a follow-up to a previous question of mine, where I presented another queue of the same type to get some feedback on it. Some people pointed out some fundamental errors I had ...
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