mirror of
https://github.com/criyle/go-judge.git
synced 2025-11-04 14:50:02 +08:00
91 lines
1.6 KiB
Go
91 lines
1.6 KiB
Go
package runner
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import (
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"io/ioutil"
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"os"
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"sync"
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"github.com/criyle/go-judge/file"
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"github.com/criyle/go-judge/file/memfile"
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"github.com/criyle/go-sandbox/daemon"
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"github.com/criyle/go-sandbox/types"
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)
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func copyOutAndCollect(m *daemon.Master, c *Cmd, ptc []pipeBuff) (map[string]file.File, error) {
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// wait to complete
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var wg sync.WaitGroup
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wg.Add(len(ptc))
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fc := make(chan file.File, len(ptc)+len(c.CopyOut))
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errC := make(chan error, 1) // collect only 1 error
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var (
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cFiles []*os.File
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err error
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)
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if len(c.CopyOut) > 0 {
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// prepare open param
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openCmd := make([]daemon.OpenCmd, 0, len(c.CopyOut))
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for _, n := range c.CopyOut {
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openCmd = append(openCmd, daemon.OpenCmd{
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Path: n,
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Flag: os.O_RDONLY,
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})
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}
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// open all
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cFiles, err = m.Open(openCmd)
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wg.Add(len(cFiles))
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}
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// copy out
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for i := range cFiles {
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go func(cFile *os.File, n string) {
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defer wg.Done()
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defer cFile.Close()
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c, err := ioutil.ReadAll(cFile)
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if err != nil {
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writeErrorC(errC, err)
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return
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}
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fc <- memfile.New(n, c)
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}(cFiles[i], c.CopyOut[i])
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}
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// collect pipe
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for _, p := range ptc {
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go func(p pipeBuff) {
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defer wg.Done()
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<-p.buff.Done
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if int64(p.buff.Buffer.Len()) > p.buff.Max {
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writeErrorC(errC, types.StatusOLE)
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}
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fc <- memfile.New(p.name, p.buff.Buffer.Bytes())
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}(p)
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}
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// wait to finish
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wg.Wait()
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// collect to map
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close(fc)
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rt := make(map[string]file.File)
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for f := range fc {
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name := f.Name()
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rt[name] = f
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}
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if err != nil {
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return rt, err
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}
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// check error
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select {
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case err := <-errC:
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return rt, err
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default:
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}
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return rt, nil
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}
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