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proxy.go
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proxy.go
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/*
* Copyright (C) 2024 Google LLC
*
* 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 main
import (
"context"
"os"
"os/signal"
"github.com/cloudspannerecosystem/cassandra-to-spanner-proxy/third_party/datastax/proxy"
)
func main() {
ctx, cancel := signalContextForProxy(context.Background(), os.Interrupt, os.Kill)
defer cancel()
os.Exit(proxy.Run(ctx, os.Args[1:]))
}
// signalContext is a simplified version of `signal.NotifyContext()` for golang 1.15 and earlier
func signalContextForProxy(parent context.Context, sig ...os.Signal) (context.Context, func()) {
ctx, cancel := context.WithCancel(parent)
ch := make(chan os.Signal, 1)
signal.Notify(ch, sig...)
if ctx.Err() == nil {
go func() {
select {
case <-ch:
cancel()
case <-ctx.Done():
}
}()
}
return ctx, func() {
cancel()
signal.Stop(ch)
}
}