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66e38d20cd
* #1881 update storage APIs, use int64_t for size Signed-off-by: yudong.cai <yudong.cai@zilliz.com> * update changelog Signed-off-by: yudong.cai <yudong.cai@zilliz.com>
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "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, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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#include "storage/disk/DiskIOReader.h"
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namespace milvus {
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namespace storage {
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bool
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DiskIOReader::open(const std::string& name) {
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name_ = name;
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fs_ = std::fstream(name_, std::ios::in | std::ios::binary);
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return fs_.good();
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}
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void
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DiskIOReader::read(void* ptr, int64_t size) {
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fs_.read(reinterpret_cast<char*>(ptr), size);
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}
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void
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DiskIOReader::seekg(int64_t pos) {
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fs_.seekg(pos);
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}
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int64_t
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DiskIOReader::length() {
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fs_.seekg(0, fs_.end);
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int64_t len = fs_.tellg();
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fs_.seekg(0, fs_.beg);
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return len;
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}
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void
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DiskIOReader::close() {
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fs_.close();
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}
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} // namespace storage
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} // namespace milvus
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