In this tutorial, we will learn more about How to pass-variables from a Java & Python Client to a Linux/Ubuntu Server which is running C which we can do in a number of ways which we will discuss here one by one and get it done.
Pass-Variables
As there are different ways to pass the variable and we will discuss all the possible ways to do so.
Socket programming
It is one of the most preferred methods to do so where You can establish a network connection between the client and server using sockets. You can then use sockets to send data from the client to the server. The server can receive the data and use it in its C program. Java and Py both have libraries for socket programming.
REST APIs
Rest APIs are the trending thing nowadays where You can use REST APIs to transfer data between the client and server. The client can make HTTP requests to the server, and the server can respond with data. You can use a lightweight framework like Flask in it or Spring in Java to create REST APIs. On the server side, you can write a C program to handle the HTTP requests and process the data.
Shared Memory
As we know we can also use share memory by creating a shared memory region between the client and server. The client can write data to the shared memory, and the server can read the data. The server can then use the data in its C program. This approach requires careful management of shared memory to prevent data race conditions and ensure data consistency.
Message Queues
You can use message queues to transfer data between the client and server. The client can send a message containing the data, and the server can receive the message along with processing the data. There are various message queue libraries available for Java, Python, and C, such as ZeroMQ and RabbitMQ.
File-based communication
The client can write data to a file and the server can read the data from the same file. As this method is the most easily way to deal but at some times it does not being supported. This approach requires careful management of file locks to prevent data inconsistency and data race conditions.
Remote Procedure Call (RPC)
You can use an RPC framework to call C functions on the server from the client. The client can pass arguments to the C function, and the function can return results to the client. Examples of RPC frameworks include gRPC and Apache Thrift.
WebSockets
You can use WebSockets to establish a persistent connection between the client and server. The client can send data to the server, and the server can push data to the client in real time. The server can use a WebSocket library in C, such as libwebsockets.
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