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Merge pull request networkservicemesh#307 from Nordix/metadata-vfconfig
use metadata map for storing vfconfig
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| // Copyright (c) 2020-2021 Doc.ai and/or its affiliates. | ||
| // | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // 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 vfconfig provides VF config | ||
| package vfconfig | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
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| "github.com/networkservicemesh/sdk/pkg/networkservice/utils/metadata" | ||
| ) | ||
|
|
||
| type key struct{} | ||
|
|
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| // VFConfig is a config for VF | ||
| type VFConfig struct { | ||
| // PFInterfaceName is a parent PF net interface name | ||
| PFInterfaceName string | ||
| // VFInterfaceName is a VF net interface name | ||
| VFInterfaceName string | ||
| // VFPCIAddress is a VF pci address | ||
| VFPCIAddress string | ||
| // VFNum is a VF num for the parent PF | ||
| VFNum int | ||
| } | ||
|
|
||
| // Store sets the VFConfig stored in per Connection.Id metadata. | ||
| func Store(ctx context.Context, isClient bool, config *VFConfig) { | ||
| metadata.Map(ctx, isClient).Store(key{}, config) | ||
| } | ||
|
|
||
| // Delete deletes the VFConfig stored in per Connection.Id metadata | ||
| func Delete(ctx context.Context, isClient bool) { | ||
| metadata.Map(ctx, isClient).Delete(key{}) | ||
| } | ||
|
|
||
| // Load returns the VFConfig stored in per Connection.Id metadata, or nil if no | ||
| // value is present. | ||
| // The ok result indicates whether value was found in the per Connection.Id metadata. | ||
| func Load(ctx context.Context, isClient bool) (config *VFConfig, ok bool) { | ||
| rawValue, ok := metadata.Map(ctx, isClient).Load(key{}) | ||
| if !ok { | ||
| return | ||
| } | ||
| config, ok = rawValue.(*VFConfig) | ||
| return config, ok | ||
| } | ||
|
|
||
| // LoadOrStore returns the existing VFConfig stored in per Connection.Id metadata if present. | ||
| // Otherwise, it stores and returns the given VFConfig. | ||
| // The loaded result is true if the value was loaded, false if stored. | ||
| func LoadOrStore(ctx context.Context, isClient bool, config *VFConfig) (value *VFConfig, ok bool) { | ||
| rawValue, ok := metadata.Map(ctx, isClient).LoadOrStore(key{}, config) | ||
| if !ok { | ||
| return config, ok | ||
| } | ||
| value, ok = rawValue.(*VFConfig) | ||
| return value, ok | ||
| } | ||
|
|
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| // LoadAndDelete deletes the VFConfig stored in per Connection.Id metadata, | ||
| // returning the previous value if any. The loaded result reports whether the key was present. | ||
| func LoadAndDelete(ctx context.Context, isClient bool) (config *VFConfig, ok bool) { | ||
| rawValue, ok := metadata.Map(ctx, isClient).LoadAndDelete(key{}) | ||
| if !ok { | ||
| return | ||
| } | ||
| config, ok = rawValue.(*VFConfig) | ||
| return config, ok | ||
| } |