68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
package content
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import (
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"context"
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"io"
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"sync"
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"time"
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"github.com/opencontainers/go-digest"
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"github.com/pkg/errors"
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)
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var (
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// ErrNotFound is returned when an item is not found.
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//
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// Use IsNotFound(err) to detect this condition.
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ErrNotFound = errors.New("content: not found")
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// ErrExists is returned when something exists when it may not be expected.
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//
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// Use IsExists(err) to detect this condition.
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ErrExists = errors.New("content: exists")
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bufPool = sync.Pool{
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New: func() interface{} {
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return make([]byte, 1<<20)
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},
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}
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)
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type Info struct {
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Digest digest.Digest
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Size int64
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CommittedAt time.Time
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}
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type Provider interface {
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Reader(ctx context.Context, dgst digest.Digest) (io.ReadCloser, error)
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}
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type Status struct {
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Ref string
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Offset int64
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Total int64
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StartedAt time.Time
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UpdatedAt time.Time
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}
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type Writer interface {
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io.WriteCloser
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Status() (Status, error)
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Digest() digest.Digest
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Commit(size int64, expected digest.Digest) error
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Truncate(size int64) error
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}
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type Ingester interface {
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Writer(ctx context.Context, ref string, size int64, expected digest.Digest) (Writer, error)
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}
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func IsNotFound(err error) bool {
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return errors.Cause(err) == ErrNotFound
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}
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func IsExists(err error) bool {
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return errors.Cause(err) == ErrExists
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}
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