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All LessonsFree Lessons (6)

Introduction

Why This Course Prerequisites, the Approach, and Learning Outcomes

Introduction to Design Patterns

Overview of Design Patterns Origins and History What Characterizes a Pattern?Anti-Pattern Pattern vs. Design Pattern Three Types of Patterns Components of a Design Pattern Algorithms, Frameworks, and Design Patterns Writing Patterns Quiz Yourself: Introduction to Patterns

Deep Dive into Design Patterns

Types of Design Patterns from GoF Strategy Pattern Inheritance vs. Composition Strategy Pattern and Delegation Factory Method Design Pattern Factory Method Examples Exercise: Factory Method Solution: Factory Method Quiz Yourself: Strategy pattern and Factory Method Singleton Pattern Singleton Pattern Implementation Alternatives to Singleton Adapter Design Pattern Adapter Design Pattern Examples Exercise: Adapter Patterns Solution: Adapter Patterns Quiz Yourself: Singleton and Adapter Patterns Bridge Pattern Bridge Design Pattern Example PImpl Exercise: PImpl Idiom Solution: PImpl Idiom Quiz Yourself: PImpl and Bridge Patterns

More Design Patterns

Decorator Design Pattern Decorator Design Pattern Example Exercise: Decorator Design Pattern Solution: Decorator Design Pattern Quiz Yourself: Decorator Design Pattern Facade Design Pattern Facade Design Pattern Example Composite Design Pattern Composite Design Pattern Example Exercise: Composite Design Pattern Solution: Composite Design Pattern Quiz Yourself: Facade and Composite Design Patterns Proxy Design Pattern Proxy Design Pattern Example Quiz Yourself: Proxy Design Pattern Observer Design Pattern Observer Design Pattern Example Exercise: Observer Design Pattern Solution: Observer Design Pattern Quiz Yourself: Observer Design Pattern Visitor Design Pattern Visitor Design Pattern Examples Template Method Template Method Example Quiz Yourself: Visitor and Template Design Patterns

Idioms

RAII Idiom RAII Idiom Example Copy-and-Swap Idiom Exercise: Copy-and-Swap Idiom Solution: Copy-and-Swap Idiom Polymorphism Polymorphism Examples Exercise: Polymorphism Solution: Polymorphism Curiously Recurring Template Pattern (CRTP)CRTP (Static Polymorphism)CRTP (Mixins)Exercise: CRTP Add Class Solution: CRTP Add Class Exercise: CRTP-derived Class Restriction Solution: CRTP-derived Class Restriction Expression Templates Exercise: Expression Templates Solution: Expression Templates Policy Idiom Exercise: Template Policy for "MyInt std::map" Key Solution: Template Policy for "MyInt std::map" Key Traits Exercise: Extending Data Type Categorization Using Traits Solution: Extending Data Type Categorization using Traits Tag Dispatching Idiom Exercise: Tag Dispatching Solution: Tag Dispatching Type Erasure Exercise: Type Erasure Solution: Type Erasure

Architectural Patterns

Layered Pattern Pipes-and-Filters Pattern Broker Pattern Model-View-Controller Pattern Reactor Pattern Quiz Yourself: Architectural Patterns

Patterns for Concurrency

Exercise: Check the Race Condition

Solution: Check the Race Condition

Thread-local Storage

Tasks, Futures, and Promises

Exercise: Parallelize Scalar Product Calculation

Solution: Parallelize Scalar Product Calculation

Strategized Locking

Thread-Safe Interface

Guarded Suspension

Conclusion

Course Conclusion

Master Software Design Patterns and Architecture in C++/

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Scoped Locking

Scoped Locking

Learn about scoped locking.

We'll cover the following...

std::lock_guard
std::unique_lock

Locks (scoped locks) take care of their resource following the RAII idiom. A lock automatically binds its mutex in the constructor and releases it in the destructor. This considerably reduces the risk of a deadlock because the runtime takes care of the mutex.

There are two types of locks available in C++11, std::lock_guard for simple situations and std::unique-lock for the advanced use case.

`std::lock_guard`

First, let’s look at the simple use case.

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mutex m;
m.lock();
sharedVariable= getVar();
m.unlock();

With so little code, mutex m ensures access to the critical section sharedVariable= getVar() is sequential. Sequential means that, in this ...