1 | /** |
2 | * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. |
6 | * You may obtain a copy of the License at |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
10 | * Unless required by applicable law or agreed to in writing, software |
11 | * distributed under the License is distributed on an "AS IS" BASIS, |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | * See the License for the specific language governing permissions and |
14 | * limitations under the License. |
15 | * |
16 | * \author guonix |
17 | * \date Nov 2020 |
18 | * \brief |
19 | */ |
20 | |
21 | #include "equal_task.h" |
22 | #include "common/error_code.h" |
23 | |
24 | namespace proxima { |
25 | namespace be { |
26 | namespace query { |
27 | |
28 | EqualTask::EqualTask(index::SegmentPtr segment, QueryKeyContext *context) |
29 | : BthreadTask("EqualTask" ), |
30 | hit_count_(0), |
31 | segment_(std::move(segment)), |
32 | context_(context) {} |
33 | |
34 | EqualTask::~EqualTask() = default; |
35 | |
36 | uint32_t EqualTask::hit() const { |
37 | return hit_count_; |
38 | } |
39 | |
40 | const index::QueryResult &EqualTask::forward() const { |
41 | return forward_; |
42 | } |
43 | |
44 | int EqualTask::do_run() { |
45 | if (!segment_ || !context_) { |
46 | return PROXIMA_BE_ERROR_CODE(InvalidSegment); |
47 | } |
48 | // Invoke kv_search with segment |
49 | int code = segment_->kv_search(context_->primary_key(), &forward_); |
50 | if (code == 0 && forward_.primary_key != index::INVALID_KEY) { |
51 | hit_count_ = 1; |
52 | } |
53 | |
54 | return code; |
55 | } |
56 | |
57 | } // namespace query |
58 | } // namespace be |
59 | } // namespace proxima |
60 | |