Singleton Method Design Pattern
The Singleton Pattern is basically a type of design pattern that restricts the instantiation of a class to a single instance and provides a global point of access to that instance. This pattern is often used to control access to resources such as databases, file systems, or network connections.
In embedded systems, where resource utilization is crucial, the Singleton Pattern can be especially very useful.
C
#include <stdio.h> // Singleton class definition typedef struct { // Add your member variables here int data; } Singleton; // Static instance of the Singleton class static Singleton instance; // Function to get the instance of the Singleton class Singleton* getSingletonInstance() { return &instance; } // Function to initialize the Singleton instance void initializeSingleton() { // Perform any initialization here instance.data = 0; } // Example usage int main() { // Initialize the Singleton instance initializeSingleton(); // Get the Singleton instance Singleton* singleton = getSingletonInstance(); // Access and modify data printf ("Initial data: %d\n", singleton->data); // Modify data singleton->data = 42; // Access modified data printf ("Modified data: %d\n", singleton->data); return 0; } |
Explanation of the above Code:
- Basically, In this example, we have a Singleton struct representing the Singleton class. The instance of this class (instance) is declared as a static variable to ensure there is only one instance.
- The getSingletonInstance function provides a way to access the singleton instance.
- The initializeSingleton function is used to initialize any necessary data or perform other setup tasks.
Design Patterns for Embedded Systems in C
When working with embedded systems in C, there are so many design patterns that are particularly very useful. Many design patterns can be applied to embedded systems development in C. In this article, we will discuss design patterns for Embedded Systems in C, let’s see all of them one by one with the help of examples.
Important Topics for Design Patterns for Embedded Systems in C
- What is a Design Pattern?
- Creational Design Patterns for Embedded Systems in C
- Factory Method Design Pattern
- Object Method Design Pattern
- Opaque Method Design Pattern
- Singleton Method Design Pattern
- Structural Design Patterns for Embedded Systems in C
- Callback Method Design Patterns
- Inheritance Method Design Pattern
- Virtual API Method Design Pattern
- Other Design Patterns for Embedded System in C
- Bridge Method Design Pattern
- Concurrency Method Design Pattern
- Spinlock Method Design Pattern
- Mutex Method Design Pattern
- Conditional Method Design Pattern
- Behavioral Method Design Pattern
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