blob: a64568f6fa54d46a5382ba7e58a6c6ba30819aa4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
// Package state provides cross-process state tracking for hakurei container instances.
package state
import (
"hakurei.app/hst"
)
type Store interface {
// Do calls f exactly once and ensures store exclusivity until f returns.
// Returns whether f is called and any errors during the locking process.
// Cursor provided to f becomes invalid as soon as f returns.
Do(identity int, f func(c Cursor)) (ok bool, err error)
// List queries the store and returns a list of identities known to the store.
// Note that some or all returned identities might not have any active apps.
List() (identities []int, err error)
}
// Cursor provides access to the store of an identity.
type Cursor interface {
Save(state *hst.State) error
Destroy(id hst.ID) error
Load() (map[hst.ID]*hst.State, error)
Len() (int, error)
}
|
