containerd/grpc.go
Kir Kolyshkin bbe14f0a2e Switch from x/net/context to context
Since Go 1.7, context is a standard package, superceding the
"x/net/context". Since Go 1.9, the latter only provides a few type
aliases from the former. Therefore, it makes sense to switch to the
standard package.

This commit was generated by the following script (with a couple of
minor fixups to remove extra changes done by goimports):

	#!/bin/bash

	if [ $# -ge 1 ]; then
		FILES=$*
	else
		FILES=$(git ls-files \*.go | grep -vF ".pb.go" | grep -v
	^vendor/)
	fi

	for f in $FILES; do
		printf .
		sed -i -e 's|"golang.org/x/net/context"$|"context"|' $f
		goimports -w $f
		awk '	/^$/ {e=1; next;}
			/[[:space:]]"context"$/ {e=0;}
			{if (e) {print ""; e=0}; print;}' < $f > $f.new && \
				mv $f.new $f
		goimports -w $f
	done
	echo

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
2018-04-24 14:33:34 -07:00

53 lines
1.6 KiB
Go

/*
Copyright The containerd 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 containerd
import (
"context"
"github.com/containerd/containerd/namespaces"
"google.golang.org/grpc"
)
type namespaceInterceptor struct {
namespace string
}
func (ni namespaceInterceptor) unary(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
_, ok := namespaces.Namespace(ctx)
if !ok {
ctx = namespaces.WithNamespace(ctx, ni.namespace)
}
return invoker(ctx, method, req, reply, cc, opts...)
}
func (ni namespaceInterceptor) stream(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
_, ok := namespaces.Namespace(ctx)
if !ok {
ctx = namespaces.WithNamespace(ctx, ni.namespace)
}
return streamer(ctx, desc, cc, method, opts...)
}
func newNSInterceptors(ns string) (grpc.UnaryClientInterceptor, grpc.StreamClientInterceptor) {
ni := namespaceInterceptor{
namespace: ns,
}
return grpc.UnaryClientInterceptor(ni.unary), grpc.StreamClientInterceptor(ni.stream)
}