forked from security/hakurei
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package state
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import (
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"errors"
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"io"
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"time"
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"hakurei.app/cmd/hakurei/internal/app"
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"hakurei.app/hst"
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)
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var ErrNoConfig = errors.New("state does not contain config")
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type Entries map[app.ID]*State
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type Store interface {
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// Do calls f exactly once and ensures store exclusivity until f returns.
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// Returns whether f is called and any errors during the locking process.
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// Cursor provided to f becomes invalid as soon as f returns.
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Do(aid int, f func(c Cursor)) (ok bool, err error)
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// List queries the store and returns a list of aids known to the store.
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// Note that some or all returned aids might not have any active apps.
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List() (aids []int, err error)
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// Close releases any resources held by Store.
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Close() error
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}
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// Cursor provides access to the store
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type Cursor interface {
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Save(state *State, configWriter io.WriterTo) error
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Destroy(id app.ID) error
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Load() (Entries, error)
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Len() (int, error)
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}
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// State is an instance state
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type State struct {
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// hakurei instance id
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ID app.ID `json:"instance"`
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// child process PID value
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PID int `json:"pid"`
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// sealed app configuration
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Config *hst.Config `json:"config"`
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// process start time
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Time time.Time `json:"time"`
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}
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