1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/github.com/containerd/cgroups/opts.go b/vendor/github.com/containerd/cgroups/opts.go
new file mode 100644
index 000000000..7c5d9fb9c
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/opts.go
@@ -0,0 +1,61 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package cgroups
+
+import (
+	"github.com/pkg/errors"
+)
+
+var (
+	// ErrIgnoreSubsystem allows the specific subsystem to be skipped
+	ErrIgnoreSubsystem = errors.New("skip subsystem")
+	// ErrDevicesRequired is returned when the devices subsystem is required but
+	// does not exist or is not active
+	ErrDevicesRequired = errors.New("devices subsystem is required")
+)
+
+// InitOpts allows configuration for the creation or loading of a cgroup
+type InitOpts func(*InitConfig) error
+
+// InitConfig provides configuration options for the creation
+// or loading of a cgroup and its subsystems
+type InitConfig struct {
+	// InitCheck can be used to check initialization errors from the subsystem
+	InitCheck InitCheck
+}
+
+func newInitConfig() *InitConfig {
+	return &InitConfig{
+		InitCheck: RequireDevices,
+	}
+}
+
+// InitCheck allows subsystems errors to be checked when initialized or loaded
+type InitCheck func(Subsystem, Path, error) error
+
+// AllowAny allows any subsystem errors to be skipped
+func AllowAny(s Subsystem, p Path, err error) error {
+	return ErrIgnoreSubsystem
+}
+
+// RequireDevices requires the device subsystem but no others
+func RequireDevices(s Subsystem, p Path, err error) error {
+	if s.Name() == Devices {
+		return ErrDevicesRequired
+	}
+	return ErrIgnoreSubsystem
+}