Rico's Nerd Cluster

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Cpp Exceptions

Error Throwing

Error Throwing rethrow an error using std::rethrow_exception(std::exception_ptr) 1 2 3 4 5 6 7 8 9 10 11 12 catch (std::exception&) { exptr_ = std::current_exception(); } if (exptr_) { ...

Posted by Rico's Nerd Cluster on June 13, 2023

C++ - [Concurrency 7] Jthread

Introduction The main characteristics of std::jthread include: Can join itself automatically, or can request to join using std::stop_token The thread is movable but not copyable jthread ca...

Posted by Rico's Nerd Cluster on June 8, 2023

C++ - [Concurrency 6] Memory Model

Introduction The C++ memory model was formally introduced in C++11 mainly for multithreading. Before C++11: Threading was platform-dependent. (POSIX threads for Unit systems) Behavior of sh...

Posted by Rico's Nerd Cluster on June 6, 2023

C++ - [Concurrency 5] Coroutine

Coroutine Coroutines in C++ allows us to write asynchronous code in a sequential style. It allows us to resume and suspend, instead of blocking a thread. A coroutine by default is single-threaded,...

Posted by Rico's Nerd Cluster on June 5, 2023

C++ - [Concurrency 4] Various Concurrent Methods

Asynchonous Programming, Vectorization, `std::launch`, Lockless array writes, OpenMP, SIMD, SSE2

Asynchronous Programming Single-Threaded Asynchornous Programming Cooperative Multitasking & Pre-emptive Multitasking This is a model where each task voluntari...

Posted by Rico's Nerd Cluster on June 4, 2023

C++ - [Concurrency 3] Promise, Future, Packaged_Tasks

promise <> future; packaged_tasks

Posted by Rico's Nerd Cluster on June 4, 2023

C++ - [Concurrency 2] Conditional Variables

Conditional Variables

Conditional Variables

Posted by Rico's Nerd Cluster on June 2, 2023

C++ - [Concurrency 10] Mutable Variables

Mutable Variable In this example, we are able to change a mutable variable in a const function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 #include <iostream> #include...

Posted by Rico's Nerd Cluster on June 1, 2023

C++ - [Concurrency 9] Scoped Lock and `adopt_lock`

adopt_lock In a bank transfer system, if we transfer A->B and B->A concurrently. std::lock() locks two locks in a dead-lock free way, but does not unlock automatically, so we need to unlock ...

Posted by Rico's Nerd Cluster on June 1, 2023

C++ - [Concurrency 8] `std::this_thread::yield()`

Introduction std::this_thread::yield() is used in a case where you are busy waiting and fighting for CPU time slices. It will give the scheduler a hint that other threads could come in and finsih ...

Posted by Rico's Nerd Cluster on June 1, 2023

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