24 lines
540 B
Go
24 lines
540 B
Go
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// Copyright 2015-2016 Apcera Inc. All rights reserved.
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package pse
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import (
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"errors"
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"fmt"
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"os"
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"os/exec"
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)
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func ProcUsage(pcpu *float64, rss, vss *int64) error {
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pidStr := fmt.Sprintf("%d", os.Getpid())
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out, err := exec.Command("ps", "o", "pcpu=,rss=,vsz=", "-p", pidStr).Output()
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if err != nil {
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*rss, *vss = -1, -1
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return errors.New(fmt.Sprintf("ps call failed:%v", err))
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}
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fmt.Sscanf(string(out), "%f %d %d", pcpu, rss, vss)
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*rss *= 1024 // 1k blocks, want bytes.
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*vss *= 1024 // 1k blocks, want bytes.
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return nil
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}
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