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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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79 lines
1.8 KiB
79 lines
1.8 KiB
// Copyright 2019 The 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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package http2interop |
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import ( |
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"fmt" |
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"io" |
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) |
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type PingFrame struct { |
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Header FrameHeader |
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Data []byte |
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} |
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const ( |
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PING_ACK = 0x01 |
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) |
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func (f *PingFrame) GetHeader() *FrameHeader { |
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return &f.Header |
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} |
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func (f *PingFrame) ParsePayload(r io.Reader) error { |
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raw := make([]byte, f.Header.Length) |
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if _, err := io.ReadFull(r, raw); err != nil { |
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return err |
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} |
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return f.UnmarshalPayload(raw) |
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} |
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func (f *PingFrame) UnmarshalPayload(raw []byte) error { |
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if f.Header.Length != len(raw) { |
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return fmt.Errorf("Invalid Payload length %d != %d", f.Header.Length, len(raw)) |
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} |
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if f.Header.Length != 8 { |
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return fmt.Errorf("Invalid Payload length %d", f.Header.Length) |
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} |
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f.Data = []byte(string(raw)) |
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return nil |
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} |
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func (f *PingFrame) MarshalPayload() ([]byte, error) { |
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if len(f.Data) != 8 { |
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return nil, fmt.Errorf("Invalid Payload length %d", len(f.Data)) |
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} |
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return []byte(string(f.Data)), nil |
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} |
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func (f *PingFrame) MarshalBinary() ([]byte, error) { |
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payload, err := f.MarshalPayload() |
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if err != nil { |
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return nil, err |
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} |
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f.Header.Length = len(payload) |
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f.Header.Type = PingFrameType |
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header, err := f.Header.MarshalBinary() |
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if err != nil { |
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return nil, err |
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} |
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header = append(header, payload...) |
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return header, nil |
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}
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