mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
// +build go1.6,!go1.7
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/*
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*
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* Copyright 2016 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package grpc
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import (
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"fmt"
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"io"
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"net"
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"net/http"
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"golang.org/x/net/context"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"google.golang.org/grpc/transport"
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)
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// dialContext connects to the address on the named network.
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func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
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return (&net.Dialer{Cancel: ctx.Done()}).Dial(network, address)
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}
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func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
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req.Cancel = ctx.Done()
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if err := req.Write(conn); err != nil {
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return fmt.Errorf("failed to write the HTTP request: %v", err)
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}
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return nil
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}
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// toRPCErr converts an error into an error from the status package.
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func toRPCErr(err error) error {
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if err == nil || err == io.EOF {
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return err
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}
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if _, ok := status.FromError(err); ok {
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return err
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}
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switch e := err.(type) {
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case transport.StreamError:
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return status.Error(e.Code, e.Desc)
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case transport.ConnectionError:
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return status.Error(codes.Unavailable, e.Desc)
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default:
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switch err {
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case context.DeadlineExceeded:
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return status.Error(codes.DeadlineExceeded, err.Error())
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case context.Canceled:
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return status.Error(codes.Canceled, err.Error())
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}
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}
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return status.Error(codes.Unknown, err.Error())
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}
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