91 lines
1.6 KiB
Go
91 lines
1.6 KiB
Go
package pcp
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import (
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"bufio"
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"log"
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"os/exec"
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"time"
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"os"
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)
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func Start(quit chan struct{}, logging *bool) {
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const pcpCommand string = "pmdumptext -m -l -f '' -t 1.0 -d , -c config"
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cmd := exec.Command("sh", "-c", pcpCommand)
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startTime := time.Now().Format("20060102150405")
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logFile, err := os.Create("./"+startTime+".pcplog")
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if err != nil {
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log.Fatal(err)
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}
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defer logFile.Close()
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pipe, err := cmd.StdoutPipe()
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if err != nil {
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log.Fatal(err)
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}
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//cmd.Stdout = stdout
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scanner := bufio.NewScanner(pipe)
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go func(logging *bool) {
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// Get names of the columns
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scanner.Scan()
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// Write to logfile
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logFile.WriteString(scanner.Text() + "\n")
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/*
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headers := strings.Split(scanner.Text(), ",")
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for _, hostMetric := range headers {
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split := strings.Split(hostMetric, ":")
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fmt.Printf("Host %s: Metric: %s\n", split[0], split[1])
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}
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*/
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// Throw away first set of results
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scanner.Scan()
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seconds := 0
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for scanner.Scan() {
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if(*logging) {
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log.Println("Logging PCP...")
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logFile.WriteString(scanner.Text() + "\n")
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}
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/*
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fmt.Printf("Second: %d\n", seconds)
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for i, val := range strings.Split(scanner.Text(), ",") {
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fmt.Printf("host metric: %s val: %s\n", headers[i], val)
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}*/
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seconds++
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// fmt.Println("--------------------------------")
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}
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}(logging)
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log.Println("PCP logging started")
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if err := cmd.Start(); err != nil {
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log.Fatal(err)
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}
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select{
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case <- quit:
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log.Println("Stopping PCP logging in 5 seconds")
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time.Sleep(5 * time.Second)
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cmd.Process.Kill()
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return
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}
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/*
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if err := cmd.Wait(); err != nil {
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log.Fatal(err)
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}*/
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}
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