types

type Backend interface {
	ProcessEvent(containerID string, event EventType, ei EventInfo) error
}

type Checkpoints struct{}

type Client interface {
	Version(ctx context.Context) (containerd.Version, error)

	Restore(ctx context.Context, containerID string, attachStdio StdioCallback) (alive bool, pid int, p Process, err error)

	Create(ctx context.Context, containerID string, spec *specs.Spec, shim string, runtimeOptions interface{}, opts ...containerd.NewContainerOpts) error
	Start(ctx context.Context, containerID, checkpointDir string, withStdin bool, attachStdio StdioCallback) (pid int, err error)
	SignalProcess(ctx context.Context, containerID, processID string, signal int) error
	Exec(ctx context.Context, containerID, processID string, spec *specs.Process, withStdin bool, attachStdio StdioCallback) (int, error)
	ResizeTerminal(ctx context.Context, containerID, processID string, width, height int) error
	CloseStdin(ctx context.Context, containerID, processID string) error
	Pause(ctx context.Context, containerID string) error
	Resume(ctx context.Context, containerID string) error
	Stats(ctx context.Context, containerID string) (*Stats, error)
	ListPids(ctx context.Context, containerID string) ([]uint32, error)
	Summary(ctx context.Context, containerID string) ([]Summary, error)
	DeleteTask(ctx context.Context, containerID string) (uint32, time.Time, error)
	Delete(ctx context.Context, containerID string) error
	Status(ctx context.Context, containerID string) (containerd.ProcessStatus, error)

	UpdateResources(ctx context.Context, containerID string, resources *Resources) error
	CreateCheckpoint(ctx context.Context, containerID, checkpointDir string, exit bool) error
}

type EventInfo struct {
	ContainerID string
	ProcessID   string
	Pid         uint32
	ExitCode    uint32
	ExitedAt    time.Time
	OOMKilled   bool
	Error       error
}

type EventType string

type Process interface {
	Delete(context.Context) (uint32, time.Time, error)
}

type Resources specs.LinuxResources

type Stats struct {
	Read time.Time
	// Metrics is expected to be either one of:
	// * github.com/containerd/cgroups/stats/v1.Metrics
	// * github.com/containerd/cgroups/stats/v2.Metrics
	Metrics interface{}
}

type StdioCallback func(io *cio.DirectIO) (cio.IO, error)

type Summary struct{}