36 lines
700 B
Go
36 lines
700 B
Go
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// +build linux
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package ps
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import (
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"fmt"
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"io/ioutil"
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"strings"
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)
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// Refresh reloads all the data associated with this process.
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func (p *UnixProcess) Refresh() error {
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statPath := fmt.Sprintf("/proc/%d/stat", p.pid)
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dataBytes, err := ioutil.ReadFile(statPath)
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if err != nil {
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return err
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}
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// First, parse out the image name
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data := string(dataBytes)
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binStart := strings.IndexRune(data, '(') + 1
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binEnd := strings.IndexRune(data[binStart:], ')')
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p.binary = data[binStart : binStart+binEnd]
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// Move past the image name and start parsing the rest
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data = data[binStart+binEnd+2:]
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_, err = fmt.Sscanf(data,
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"%c %d %d %d",
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&p.state,
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&p.ppid,
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&p.pgrp,
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&p.sid)
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return err
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}
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