The projects aims to create a auto grader server step-by-step

Below are the main requirements form the server and client and throughout the versions we will be upgrading the implementation

• Version V1: Single Threaded server
• Version V2: Multi Threaded that will create new thread per request paradigm
• Version V3: Multithreaded with thread pools and requests queue.

We can assume that the purpose of the submitted program is simply to print the first ten numbers:

1 2 3 4 5 6 7 8 9 10

If the submitted program prints this output, it has passed, else it has failed. You may assume the programming language to be either C or C++. Do not assume python.

In all versions, the server will always be run as follows,

$./server  <port>

and the client will always be run as follows,

$./submit  <serverIP:port>  <sourceCodeFileTobeGraded>

and will get back one of the following responses from the server:

• PASS
• COMPILER ERROR
• RUNTIME ERROR
• OUTPUT ERROR

In cases 2,3,4, the server should additionally send back the error details:

• For compiler error, the entire compiler output should be sent back to the client
• For runtime error, the error type should be sent back to the client
• For output error, the output that the program produced, and the output of a ‘diff’ command should be sent back to the client

Version 1: Single threaded Auto-grading server

In this version the server is a single threaded server, that does the above functionality. I.e. on receiving the source code file, it

1. Compiles it. If there is a compiler error, it sends the message and info back to the client else does the next step.
2. Run the executable. If there is a run-time error, it sends the message and info back to the client else does the next step. If it ran successfully, the output should be captured.
3. The output is compared with desired output. If not matching, send back the error and diff output.

Implementation details

File structure

CS744_autograder
	├── Makefile
	├── src
	│   ├── c_gradingclient.c
	│   ├── out.txt
	│   ├── s_gradingserver.c
	│   └── wrapper.cpp
	├── test_files
	│   ├── compiler_error.cpp
	│   ├── p1.c
	│   ├── program_runs.cpp
	│   └── runtime_error.cpp
	├── test.sh
	└── vanilla
		├── simple-client.c
			└── simple-server.c

s_gradingserver.c top server file, c_gradindclient.c is the top client code.

To run

make

This will create bin/ with all the binaries. To run the server run the following command

bin/server <port>

Now run the client

bin/client 127.0.0.1:<server port> test_file/<file you want send>