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34 lines
870 B
Go
34 lines
870 B
Go
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package daemon
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/davecgh/go-spew/spew"
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"github.com/pkg/errors"
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)
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const dataStructuresLogNameTemplate = "daemon-data-%s.log"
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// dumpDaemon appends the daemon datastructures into file in dir and returns full path
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// to that file.
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func (d *Daemon) dumpDaemon(dir string) (string, error) {
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// Ensure we recover from a panic as we are doing this without any locking
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defer func() {
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recover()
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}()
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path := filepath.Join(dir, fmt.Sprintf(dataStructuresLogNameTemplate, strings.Replace(time.Now().Format(time.RFC3339), ":", "", -1)))
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f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0666)
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if err != nil {
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return "", errors.Wrap(err, "failed to open file to write the daemon datastructure dump")
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}
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defer f.Close()
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spew.Fdump(f, d) // Does not return an error
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f.Sync()
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return path, nil
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}
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