forked from cisco-app-networking/networkservicemesh
/
remote_peer_descriptor.go
96 lines (81 loc) · 2.55 KB
/
remote_peer_descriptor.go
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// Copyright (c) 2020 Cisco Systems, Inc.
//
// 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 nsmd
import (
"context"
"sync"
"cisco-app-networking.github.io/networkservicemesh/controlplane/api/registry"
"cisco-app-networking.github.io/networkservicemesh/controlplane/pkg/model"
)
//RemotePeerDescriptor represents network service manager remote peer
type RemotePeerDescriptor interface {
sync.Locker
AddConnection(connection *model.ClientConnection)
RemoveConnection(connection *model.ClientConnection)
Cancel()
Context() context.Context
Reset()
IsCanceled() bool
HasConnection() bool
RemoteNsm() *registry.NetworkServiceManager
}
type remotePeerDescriptor struct {
sync.Mutex
connections map[string]*model.ClientConnection
cancel context.CancelFunc
canceled bool
remoteNsm *registry.NetworkServiceManager
context context.Context
}
func (r *remotePeerDescriptor) HasConnection() bool {
return len(r.connections) > 0
}
func (r *remotePeerDescriptor) Context() context.Context {
return r.context
}
func (r *remotePeerDescriptor) AddConnection(connection *model.ClientConnection) {
r.connections[connection.ConnectionID] = connection
}
func (r *remotePeerDescriptor) RemoveConnection(connection *model.ClientConnection) {
delete(r.connections, connection.ConnectionID)
}
func (r *remotePeerDescriptor) Cancel() {
if r.cancel != nil {
r.cancel()
}
r.canceled = true
}
func (r *remotePeerDescriptor) Reset() {
r.context, r.cancel = context.WithCancel(context.Background())
r.canceled = false
}
func (r *remotePeerDescriptor) IsCanceled() bool {
return r.canceled
}
func (r *remotePeerDescriptor) RemoteNsm() *registry.NetworkServiceManager {
return r.remoteNsm
}
//NewRemotePeerDescriptor represents network service manager remote peer
func NewRemotePeerDescriptor(conn *model.ClientConnection) RemotePeerDescriptor {
result := &remotePeerDescriptor{
remoteNsm: conn.RemoteNsm,
connections: map[string]*model.ClientConnection{
conn.ConnectionID: conn,
},
}
result.Reset()
return result
}