What is the difference between Go's inter-process communication and message-oriented middleware techniques for building and integrating various communication and networking functionality in Go programs for various purposes and scenarios?
Go provides several techniques for building and integrating communication and networking functionality in programs, including inter-process communication (IPC) and message-oriented middleware (MOM).
Inter-process communication (IPC) refers to the communication between different processes or threads within the same system. Go provides several mechanisms for IPC, including shared memory, semaphores, and pipes. These mechanisms allow multiple processes or threads to communicate and synchronize with each other, enabling them to share data and coordinate their actions.
On the other hand, message-oriented middleware (MOM) is a more high-level approach to communication that uses message queues to enable communication between different systems or applications. MOM typically relies on a message broker or middleware to manage the queues and handle the routing and delivery of messages. Go supports various MOM solutions, including RabbitMQ and Apache Kafka, as well as libraries for building custom message brokers.
The main difference between IPC and MOM is their level of abstraction and their use cases. IPC is typically used for low-level communication between processes or threads within the same system, while MOM is used for higher-level communication between different systems or applications, often across different networks or even across different geographic locations.
IPC is generally faster and more lightweight than MOM, as it involves direct communication between processes or threads without the need for middleware or message queues. However, MOM provides greater flexibility and reliability, as it allows for more complex routing and delivery of messages, as well as features such as message persistence and durability.