mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
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79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
/*
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Copyright © 2021 The CDI Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cdi
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import (
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cdi "github.com/container-orchestrated-devices/container-device-interface/specs-go"
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oci "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/pkg/errors"
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)
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// Device represents a CDI device of a Spec.
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type Device struct {
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*cdi.Device
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spec *Spec
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}
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// Create a new Device, associate it with the given Spec.
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func newDevice(spec *Spec, d cdi.Device) (*Device, error) {
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dev := &Device{
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Device: &d,
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spec: spec,
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}
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if err := dev.validate(); err != nil {
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return nil, err
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}
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return dev, nil
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}
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// GetSpec returns the Spec this device is defined in.
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func (d *Device) GetSpec() *Spec {
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return d.spec
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}
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// GetQualifiedName returns the qualified name for this device.
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func (d *Device) GetQualifiedName() string {
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return QualifiedName(d.spec.GetVendor(), d.spec.GetClass(), d.Name)
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}
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// ApplyEdits applies the device-speific container edits to an OCI Spec.
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func (d *Device) ApplyEdits(ociSpec *oci.Spec) error {
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return d.edits().Apply(ociSpec)
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}
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// edits returns the applicable container edits for this spec.
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func (d *Device) edits() *ContainerEdits {
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return &ContainerEdits{&d.ContainerEdits}
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}
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// Validate the device.
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func (d *Device) validate() error {
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if err := ValidateDeviceName(d.Name); err != nil {
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return err
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}
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edits := d.edits()
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if edits.isEmpty() {
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return errors.Errorf("invalid device, empty device edits")
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}
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if err := edits.Validate(); err != nil {
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return errors.Wrapf(err, "invalid device %q", d.Name)
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}
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return nil
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}
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