The 18_locwatchdog project showcases the use of a Watchdog in a Local Service environment, demonstrating how the AREG Framework can monitor and maintain thread activity. The watchdog sets a timeout for each thread, automatically restarting any that fail to respond within the designated time. Notifications of thread termination and restart events are sent to all Service Providers and Service Consumers to maintain system stability.
- Watchdog for Thread Monitoring: The Watchdog ensures that threads are actively responding. If a thread becomes unresponsive, it is automatically restarted, enhancing fault tolerance.
- Local Service with Multithreading: The project features a Local Service that operates entirely within the same process, emphasizing multithreading without external network communication.
- Service Interface: The project uses the AREG SDK's Service Interface and code generator to automate the creation of Object Remote Procedure Call (Object RPC) messages, streamlining communication between service components within the application.
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18_generated:
- This library contains code generated from the HelloWatchdog.siml service interface document during CMake configuration or as a pre-build action in Visual Studio. The generated files provide the necessary infrastructure to define and manage the watchdog and its related services.
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- This sub-project implements the Local Service application, which is multithreaded and operates entirely within the same process. It includes:
- A Service Provider that responds to requests and monitors the threads.
- A Service Consumer that interacts with the Service Provider and logs the activity of the watchdog.
- The logs provide detailed insights into the watchdog's behavior, including any thread restarts triggered by the watchdog.
- This sub-project implements the Local Service application, which is multithreaded and operates entirely within the same process. It includes:
Multithreading Communication: All interactions within the project occur via multithreading communication. The Watchdog monitors threads, restarting them if they exceed the defined timeout, ensuring that services remain responsive without requiring external communication.
- Thread Monitoring and Restart: The Watchdog automatically monitors threads within the process. If a thread becomes unresponsive, the watchdog terminates and restarts the thread, ensuring continuous service operation. If needed, the Watchdog may escape monitoring a thread.
- Multithreaded Local Service: The project demonstrates a multithreaded architecture where both the Service Provider and Service Consumer run on separate threads within the same application.
- Fault Tolerance: By monitoring thread health and automatically restarting unresponsive threads, the system remains fault-tolerant and reliable.
- Detailed Logging: Logs track watchdog activity, including thread terminations and restarts, providing valuable information for debugging and system monitoring.
- Fault-Tolerant Systems: This project is ideal for scenarios requiring continuous monitoring and recovery of threads, ensuring system stability in real-time applications.
- Multithreaded Local Services: Learn how to implement a multithreaded Local Service where multiple threads interact within the same process, without the need for external communication.
- Watchdog Monitoring: Gain insights into how a watchdog can be used to monitor and restart unresponsive threads, making applications more resilient to failures.
The 18_locwatchdog project provides a practical demonstration of using a watchdog to monitor and maintain thread health in a multithreading environment. By automatically restarting unresponsive threads and notifying relevant services, the system remains stable and fault-tolerant. With the AREG Framework's support for Object RPC, the project illustrates how to build reliable, multithreaded applications with robust internal communication.