54 lines
923 B
Go
54 lines
923 B
Go
package debian
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import (
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"errors"
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"sync"
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"github.com/rapidloop/skv"
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)
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type Cache struct {
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store *skv.KVStore
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}
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// cache is not thread-safe, so make sure there are only one user
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var mu sync.Mutex
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func NewCache(path string) (c *Cache, err error) {
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mu.Lock()
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c = &Cache{}
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c.store, err = skv.Open(path)
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return
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}
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func (c Cache) Put(p []DebianKernel) error {
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if len(p) == 0 {
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return errors.New("empty slice")
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}
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return c.store.Put(p[0].Version.Package, p)
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}
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func (c Cache) Get(version string) (p []DebianKernel, err error) {
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err = c.store.Get(version, &p)
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if len(p) == 0 {
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err = skv.ErrNotFound
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}
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return
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}
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func (c Cache) PutVersions(versions []string) error {
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return c.store.Put("versions", versions)
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}
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func (c Cache) GetVersions() (versions []string, err error) {
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err = c.store.Get("versions", &versions)
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return
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}
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func (c Cache) Close() (err error) {
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err = c.store.Close()
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mu.Unlock()
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return
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}
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