go-judge/runner/run.go
2019-12-30 19:32:17 +08:00

234 lines
5.4 KiB
Go

package runner
import (
"bytes"
"fmt"
"os"
"time"
"github.com/criyle/go-judge/file"
"github.com/criyle/go-judge/file/localfile"
"github.com/criyle/go-judge/file/memfile"
"github.com/criyle/go-judge/language"
"github.com/criyle/go-judge/pkg/diff"
"github.com/criyle/go-judge/pkg/runner"
"github.com/criyle/go-judge/types"
)
const maxOutput = 4 << 20 // 4M
func (r *Runner) compile(done <-chan struct{}, task *types.CompileTask) *types.RunTaskResult {
param := r.Language.Get(task.Language, language.TypeCompile)
compileErr := func(err string) *types.RunTaskResult {
return &types.RunTaskResult{
Status: types.RunTaskFailed,
Compile: &types.CompileResult{
Error: err,
},
}
}
// source code
source, err := task.Code.Content()
if err != nil {
return compileErr("File Error")
}
// copyin files
copyIn := make(map[string]file.File)
copyIn[param.SourceFileName] = memfile.New("source", source)
for _, f := range task.ExtraFiles {
copyIn[f.Name()] = f
}
// copyout files: If compile read compiled files
var copyOut []string
copyOut = param.CompiledFileNames
// compile message (stdout & stderr)
const msgFileName = "msg"
msgCollector := runner.PipeCollector{Name: msgFileName, SizeLimit: maxOutput}
devNull := localfile.New("null", os.DevNull)
// time limit
wait := &waiter{timeLimit: time.Duration(param.TimeLimit) * time.Millisecond}
// build run specs
c := &runner.Cmd{
Args: param.Args,
Env: param.Env,
Files: []interface{}{devNull, msgCollector, msgCollector},
MemoryLimit: param.MemoryLimit << 10,
PidLimit: param.ProcLimit,
CopyIn: copyIn,
CopyOut: copyOut,
Waiter: wait.Wait,
}
// run
rn := &runner.Runner{
CGBuilder: r.CgroupBuilder,
MasterPool: r.pool,
Cmds: []*runner.Cmd{c},
}
rt, err := rn.Run()
if err != nil {
return compileErr(err.Error())
}
r0 := rt[0]
// get compile message
compileMsg, err := getFile(r0.Files, msgFileName)
if err != nil {
return compileErr("FileError" + err.Error())
}
// compile copyout
var exec []file.File
for _, n := range param.CompiledFileNames {
exec = append(exec, r0.Files[n])
}
// return result
return &types.RunTaskResult{
Status: types.RunTaskSucceeded,
Compile: &types.CompileResult{
Exec: &types.CompiledExec{
Language: task.Language,
Exec: exec,
},
Error: string(compileMsg),
},
}
}
func (r *Runner) exec(done <-chan struct{}, task *types.ExecTask) *types.RunTaskResult {
param := r.Language.Get(task.Exec.Language, language.TypeExec)
execErr := func(err string) *types.RunTaskResult {
return &types.RunTaskResult{
Status: types.RunTaskFailed,
Exec: &types.ExecResult{
Error: err,
},
}
}
// init input / output / error files
const stdout = "stdout"
const stderr = "stderr"
outputCollector := runner.PipeCollector{Name: stdout, SizeLimit: maxOutput}
errorCollector := runner.PipeCollector{Name: stderr, SizeLimit: maxOutput}
// calculate time limits
timeLimit := time.Duration(param.TimeLimit) * time.Millisecond
if task.TimeLimit > 0 {
timeLimit = time.Duration(task.TimeLimit) * time.Millisecond
}
wait := &waiter{timeLimit: timeLimit}
// calculate memory limits
memoryLimit := param.MemoryLimit << 10
if task.MemoryLimit > 0 {
memoryLimit = task.MemoryLimit << 10
}
// copyin files
copyIn := make(map[string]file.File)
for _, f := range task.Exec.Exec {
copyIn[f.Name()] = f
}
// copyout files
var copyOut []string
// build run specs
c := &runner.Cmd{
Args: param.Args,
Env: param.Env,
Files: []interface{}{task.InputFile, outputCollector, errorCollector},
MemoryLimit: memoryLimit,
PidLimit: param.ProcLimit,
CopyIn: copyIn,
CopyOut: copyOut,
Waiter: wait.Wait,
}
// run
rn := &runner.Runner{
CGBuilder: r.CgroupBuilder,
MasterPool: r.pool,
Cmds: []*runner.Cmd{c},
}
rt, err := rn.Run()
if err != nil {
return execErr("JGF" + err.Error())
}
r0 := rt[0]
// get result files
inputContent, err := task.InputFile.Content()
if err != nil {
return execErr("FileError" + err.Error())
}
userOutput, err := getFile(r0.Files, stdout)
if err != nil {
return execErr("FileError" + err.Error())
}
userError, err := getFile(r0.Files, stderr)
if err != nil {
return execErr("FileError" + err.Error())
}
// compare result with answer (no spj now)
var (
status = r0.Status.String()
spjOutput []byte
scoreRate float64 = 1
)
ans, err := task.AnswerFile.Content()
if err != nil {
return execErr("FileError" + err.Error())
}
if err := diff.Compare(bytes.NewReader(ans), bytes.NewReader(userOutput)); err != nil {
spjOutput = []byte(err.Error())
scoreRate = 0
status = "WA"
}
// return result
return &types.RunTaskResult{
Status: types.RunTaskSucceeded,
Exec: &types.ExecResult{
ScoringRate: scoreRate,
Error: status,
Time: uint64(r0.Time / time.Millisecond),
Memory: r0.Memory >> 10,
Input: inputContent,
UserOutput: userOutput,
UserError: userError,
SPJOutput: spjOutput,
},
}
}
func (r *Runner) run(done <-chan struct{}, task *types.RunTask) *types.RunTaskResult {
switch task.Type {
case types.Compile:
return r.compile(done, task.Compile)
default:
return r.exec(done, task.Exec)
}
}
func getFile(files map[string]file.File, name string) ([]byte, error) {
if f, ok := files[name]; ok {
return f.Content()
}
return nil, fmt.Errorf("file %s not exists", name)
}