Similarities and differences between CM CommonAPI and AUTOSAR AP communication management

Similarities and differences between CM CommonAPI and AUTOSAR AP communication management

In the automotive industry, communication management is the key to enabling data exchange between different software components. CM CommonAPI and AUTOSAR (Automotive Open System Architecture) AP are two communication management technologies commonly used in automotive electronic systems. This article will explore the similarities and differences between CM CommonAPI and AUTOSAR AP, and provide related source code examples.

1. Introduction

1. CM CommonAPI
   CM CommonAPI is a communication management framework developed by the Automotive Grade Linux (AGL) community. It provides a set of standardized interfaces and communication protocols for communication between different software components. CM CommonAPI can be applied to multiple languages ​​and platforms, and supports cross-process and cross-network communication.

2. AUTOSAR AP
   AUTOSAR is an automotive industry alliance that aims to establish an open software architecture and standards for the entire automotive electronic system. AUTOSAR AP is part of it, providing a set of specifications and methods for communication between software modules in automotive electronic systems. AUTOSAR AP adopts a message-based communication method and communicates by defining a set of standard interfaces.

2. Comparison of Similarities and Differences

1. Communication model
   CM CommonAPI and AUTOSAR AP have certain differences in the communication model. CM CommonAPI adopts a remote procedure call (RPC) style communication model, allowing applications to exchange data by calling methods of remote objects. However, AUTOSAR AP adopts the publish/subscribe model, and software components can communicate by publishing or subscribing messages.

2. The communication interface
   CM CommonAPI provides a set of unified API interfaces, and developers can define and implement their own interfaces according to business requirements. This enables flexible communication protocol definition and expansion. However, AUTOSAR AP defines a set of fixed interface specifications, and developers need to develop and integrate according to the specifications.