Files
nearby/cpp/platform/base/input_stream.h
T
Janusz Sobczak ed511f962d Support payload offsets
Support sending a file or stream payload from a non-zero offset.
This allows the clients to resume a transfer. Upper layers should use
this feature only when both sides support it.

PiperOrigin-RevId: 385137570
2021-07-16 06:52:45 -07:00

47 lines
1.3 KiB
C++

// Copyright 2020 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
//
// https://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.
#ifndef PLATFORM_BASE_INPUT_STREAM_H_
#define PLATFORM_BASE_INPUT_STREAM_H_
#include <cstdint>
#include "platform/base/byte_array.h"
#include "platform/base/exception.h"
namespace location {
namespace nearby {
// An InputStream represents an input stream of bytes.
//
// https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html
class InputStream {
public:
virtual ~InputStream() = default;
// throws Exception::kIo
virtual ExceptionOr<ByteArray> Read(std::int64_t size) = 0;
// throws Exception::kIo
virtual ExceptionOr<size_t> Skip(size_t offset);
// throws Exception::kIo
virtual Exception Close() = 0;
};
} // namespace nearby
} // namespace location
#endif // PLATFORM_BASE_INPUT_STREAM_H_