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doris/be/src/exec/file_writer.h
sduzh 6fedf5881b [CodeFormat] Clang-format cpp sources (#4965)
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2020-11-28 18:36:49 +08:00

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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
#ifndef DORIS_BE_SRC_EXEC_FILE_WRITER_H
#define DORIS_BE_SRC_EXEC_FILE_WRITER_H
#include <stdint.h>
#include "common/status.h"
namespace doris {
class FileWriter {
public:
virtual ~FileWriter() {}
virtual Status open() = 0;
// Writes up to count bytes from the buffer pointed buf to the file.
// NOTE: the number of bytes written may be less than count if.
virtual Status write(const uint8_t* buf, size_t buf_len, size_t* written_len) = 0;
virtual Status close() = 0;
};
} // end namespace doris
#endif // DORIS_BE_SRC_EXEC_FILE_WRITER_H