/
rpc_client.go
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/
rpc_client.go
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// Copyright 2021 OpenSSF Scorecard 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 tokens
import (
"log"
"net/rpc"
)
// rpcAccessor implements TokenAccessor.
type rpcAccessor struct {
client *rpc.Client
}
// Next implements TokenAccessor.Next.
func (accessor *rpcAccessor) Next() (uint64, string) {
var token Token
if err := accessor.client.Call("TokenOverRPC.Next", struct{}{}, &token); err != nil {
log.Printf("error during RPC call Next: %v", err)
return 0, ""
}
return token.ID, token.Value
}
// Release implements TokenAccessor.Release.
func (accessor *rpcAccessor) Release(id uint64) {
if err := accessor.client.Call("TokenOverRPC.Release", id, &struct{}{}); err != nil {
log.Printf("error during RPC call Release: %v", err)
}
}
func makeRPCAccessor(serverURL string) TokenAccessor {
client, err := rpc.DialHTTP("tcp", serverURL)
if err != nil {
panic(err)
}
return &rpcAccessor{
client: client,
}
}