60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package main
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import (
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"bufio"
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"bytes"
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"fmt"
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"log"
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"os"
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)
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const (
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filename = "mlijobs.txt"
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inoutField = 1
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timeField = 3
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numFields = 7
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)
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func main() {
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file, err := os.Open(filename)
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if err != nil {
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log.Fatal(err)
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}
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defer file.Close()
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var ml, out int
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var mlTimes []string
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in := []byte("IN")
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s := bufio.NewScanner(file)
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for s.Scan() {
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f := bytes.Fields(s.Bytes())
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if len(f) != numFields {
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log.Fatal("unexpected format,", len(f), "fields.")
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}
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if bytes.Equal(f[inoutField], in) {
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out--
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if out < 0 {
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log.Fatalf("negative license use at %s", f[timeField])
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}
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continue
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}
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out++
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if out < ml {
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continue
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}
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if out > ml {
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ml = out
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mlTimes = mlTimes[:0]
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}
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mlTimes = append(mlTimes, string(f[timeField]))
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}
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if err = s.Err(); err != nil {
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log.Fatal(err)
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}
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fmt.Println("max licenses:", ml)
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fmt.Println("at:")
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for _, t := range mlTimes {
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fmt.Println(" ", t)
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}
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}
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