e67b398916
Sometime the broker writer failed to close, but we do not handle this failure. This may create an empty file on remote storage but be treated as normal. Also enhance some usabilities: 1. getting latest 2000 transactions instead of getting the earliest. 2. Show backend which download and upload tasks are being executed.
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "exec/local_file_writer.h"
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#include "util/error_util.h"
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namespace doris {
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LocalFileWriter::LocalFileWriter(const std::string& path, int64_t start_offset)
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: _path(path), _start_offset(start_offset), _fp(nullptr) {
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}
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LocalFileWriter::~LocalFileWriter() {
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close();
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}
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Status LocalFileWriter::open() {
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_fp = fopen(_path.c_str(), "w+");
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if (_fp == nullptr) {
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std::stringstream ss;
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ss << "Open file failed. path=" << _path
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<< ", errno= " << errno
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<< ", description=" << get_str_err_msg();
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return Status::InternalError(ss.str());
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}
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if (_start_offset != 0) {
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int success = fseek(_fp, _start_offset, SEEK_SET);
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if (success != 0) {
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std::stringstream ss;
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ss << "Seek to start_offset failed. offset=" << _start_offset
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<< ", errno= " << errno
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<< ", description=" << get_str_err_msg();
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return Status::InternalError(ss.str());
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}
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}
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return Status::OK();
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}
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Status LocalFileWriter::write(const uint8_t* buf, size_t buf_len, size_t* written_len) {
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size_t bytes_written = fwrite(buf, 1, buf_len, _fp);
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if (bytes_written < buf_len) {
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std::stringstream error_msg;
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error_msg << "fail to write to file. "
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<< " len=" << buf_len
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<< ", path=" << _path
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<< ", failed with errno=" << errno
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<< ", description=" << get_str_err_msg();
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return Status::InternalError(error_msg.str());
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}
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*written_len = bytes_written;
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return Status::OK();
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}
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Status LocalFileWriter::close() {
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if (_fp != nullptr) {
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fclose(_fp);
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_fp = nullptr;
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}
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return Status::OK();
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}
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} // end namespace doris
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