52 lines
1.0 KiB
Go
52 lines
1.0 KiB
Go
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package state
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import (
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"encoding/gob"
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"os"
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"path"
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)
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// we unfortunately have to assume there are never races between processes
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// this and launcher should eventually be replaced by a server process
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type launcherState struct {
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PID int
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Launcher string
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Argv []string
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Command []string
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Capability Enablements
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}
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func ReadLaunchers(runDirPath, uid string) ([]*launcherState, error) {
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var f *os.File
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var r []*launcherState
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launcherPrefix := path.Join(runDirPath, uid)
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if pl, err := os.ReadDir(launcherPrefix); err != nil {
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return nil, err
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} else {
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for _, e := range pl {
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if err = func() error {
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if f, err = os.Open(path.Join(launcherPrefix, e.Name())); err != nil {
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return err
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} else {
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defer func() {
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if f.Close() != nil {
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// unreachable
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panic("foreign state file closed prematurely")
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}
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}()
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var s launcherState
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r = append(r, &s)
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return gob.NewDecoder(f).Decode(&s)
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}
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}(); err != nil {
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return nil, err
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}
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}
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}
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return r, nil
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}
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