# OJ system
准备恢复更新啦
## Developer 
## Environment preparation

 To run this program, you must have **Ubuntu** system,

 Linux kernel version >= 3.10

 jdk1.8 version,

 mysql8.0,

 redis.

### go-judge system operation

**The port required by gojudge is 5050**

<a href="">go_judge handbook</a>.

  1. Download the binary precompiled file

https://github.com/criyle/go-judge/releases

or run on Docker

~~~bash
docker run -it --rm --privileged --shm-size=256m -p 5050:5050 criyle/executorserver
~~~

**Run binary precompiled files on Ubuntu**

First set permissions

~~~bash
chmod +x filename
~~~

After that start sandbox

~~~BASH
./file name  
~~~

#### c/c++ locale test

**Next we open postman for testing and send the request in post form http://IP:5050/run with parameters**

~~~java
{
    "cmd": [{
        "args": ["/usr/bin/g++", "Main.cc", "-o", "a"],
        "env": ["PATH=/usr/bin:/bin"],
        "files": [{
            "content": ""
        }, {
            "name": "stdout",
            "max": 10240
        }, {
            "name": "stderr",
            "max": 10240
        }],
        "cpuLimit": 10000000000,
        "memoryLimit": 104857600,
        "procLimit": 50,
        "copyIn": {
            "Main.cc": {
                "content": "#include <iostream>\nusing namespace std;\nint main() {\nint a, b;\ncin >> a >> b;\ncout << a + b << endl;\n} "
            }
        },
        "copyOut": ["stdout", "stderr"],
        "copyOutCached": ["Main.cc", "a"],
        "copyOutDir": "1"
    }]
}
~~~

**Our server will return us**

~~~bash
[
{
"status": "Accepted",
"exitStatus": 0,
"time": 726910000,
"memory": 55812096,
"runTime": 787566071,
"files": {
"stderr": "",
"stdout": ""
},
"fileIds": {
"Main.cc": "4EK46KIB",
"a": "LR567VHA"
}
}
]
~~~

**Next we run him according to the Id of Main**

~~~bash
{
    "cmd": [{
        "args": ["a"],
        "env": ["PATH=/usr/bin:/bin"],
        "files": [{
            "content": "1 1"
        }, {
            "name": "stdout",
            "max": 10240
        }, {
            "name": "stderr",
            "max": 10240
        }],
        "cpuLimit": 10000000000,
        "memoryLimit": 104857600,
        "procLimit": 50,
        "strictMemoryLimit": false,
        "copyIn": {
            "a": {
                "fileId": "LR567VHA"
            }
        }
    }]
}
~~~

**Server feedback to us**

~~~bash
[
{
"status": "Accepted",
"exitStatus": 0,
"time": 7191000,
"memory": 6672384,
"runTime": 15512983,
"files": {
"stderr": "",
"stdout": "2\n"
}
}
]
~~~

#### java locale test

todo

#### Awesome goLang language test

#### python3 language test

#### python2 language test

## backend startup

todo

## front-end startup



## Dev log



## Architecture diagram