diff options
Diffstat (limited to 'go/vendor/google.golang.org/grpc/go16.go')
-rw-r--r-- | go/vendor/google.golang.org/grpc/go16.go | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/go/vendor/google.golang.org/grpc/go16.go b/go/vendor/google.golang.org/grpc/go16.go new file mode 100644 index 0000000..f3dbf21 --- /dev/null +++ b/go/vendor/google.golang.org/grpc/go16.go @@ -0,0 +1,98 @@ +// +build go1.6,!go1.7 + +/* + * + * Copyright 2016 gRPC 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 grpc + +import ( + "fmt" + "io" + "net" + "net/http" + "os" + + "golang.org/x/net/context" + "google.golang.org/grpc/codes" + "google.golang.org/grpc/status" + "google.golang.org/grpc/transport" +) + +// dialContext connects to the address on the named network. +func dialContext(ctx context.Context, network, address string) (net.Conn, error) { + return (&net.Dialer{Cancel: ctx.Done()}).Dial(network, address) +} + +func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error { + req.Cancel = ctx.Done() + if err := req.Write(conn); err != nil { + return fmt.Errorf("failed to write the HTTP request: %v", err) + } + return nil +} + +// toRPCErr converts an error into an error from the status package. +func toRPCErr(err error) error { + if _, ok := status.FromError(err); ok { + return err + } + switch e := err.(type) { + case transport.StreamError: + return status.Error(e.Code, e.Desc) + case transport.ConnectionError: + return status.Error(codes.Unavailable, e.Desc) + default: + switch err { + case context.DeadlineExceeded: + return status.Error(codes.DeadlineExceeded, err.Error()) + case context.Canceled: + return status.Error(codes.Canceled, err.Error()) + case ErrClientConnClosing: + return status.Error(codes.FailedPrecondition, err.Error()) + } + } + return status.Error(codes.Unknown, err.Error()) +} + +// convertCode converts a standard Go error into its canonical code. Note that +// this is only used to translate the error returned by the server applications. +func convertCode(err error) codes.Code { + switch err { + case nil: + return codes.OK + case io.EOF: + return codes.OutOfRange + case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF: + return codes.FailedPrecondition + case os.ErrInvalid: + return codes.InvalidArgument + case context.Canceled: + return codes.Canceled + case context.DeadlineExceeded: + return codes.DeadlineExceeded + } + switch { + case os.IsExist(err): + return codes.AlreadyExists + case os.IsNotExist(err): + return codes.NotFound + case os.IsPermission(err): + return codes.PermissionDenied + } + return codes.Unknown +} |