Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 1 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| 2 | /** |
Alexander Afanasyev | 28d586a | 2014-07-10 20:10:54 -0700 | [diff] [blame] | 3 | * Copyright (c) 2014, Regents of the University of California, |
| 4 | * Arizona Board of Regents, |
| 5 | * Colorado State University, |
| 6 | * University Pierre & Marie Curie, Sorbonne University, |
| 7 | * Washington University in St. Louis, |
| 8 | * Beijing Institute of Technology, |
| 9 | * The University of Memphis |
Alexander Afanasyev | 9bcbc7c | 2014-04-06 19:37:37 -0700 | [diff] [blame] | 10 | * |
| 11 | * This file is part of NFD (Named Data Networking Forwarding Daemon). |
| 12 | * See AUTHORS.md for complete list of NFD authors and contributors. |
| 13 | * |
| 14 | * NFD is free software: you can redistribute it and/or modify it under the terms |
| 15 | * of the GNU General Public License as published by the Free Software Foundation, |
| 16 | * either version 3 of the License, or (at your option) any later version. |
| 17 | * |
| 18 | * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
| 19 | * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| 20 | * PURPOSE. See the GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License along with |
| 23 | * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>. |
Alexander Afanasyev | 28d586a | 2014-07-10 20:10:54 -0700 | [diff] [blame] | 24 | */ |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 25 | |
| 26 | #include "pit.hpp" |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 27 | #include <type_traits> |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 28 | |
Alexander Afanasyev | 18bbf81 | 2014-01-29 01:40:23 -0800 | [diff] [blame] | 29 | namespace nfd { |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 30 | namespace pit { |
| 31 | |
| 32 | #if HAVE_IS_MOVE_CONSTRUCTIBLE |
| 33 | static_assert(std::is_move_constructible<DataMatchResult>::value, |
| 34 | "DataMatchResult must be MoveConstructible"); |
| 35 | #endif // HAVE_IS_MOVE_CONSTRUCTIBLE |
| 36 | |
| 37 | } // namespace pit |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 38 | |
Junxiao Shi | 30d3599 | 2014-04-03 14:51:58 -0700 | [diff] [blame] | 39 | Pit::Pit(NameTree& nameTree) |
| 40 | : m_nameTree(nameTree) |
| 41 | , m_nItems(0) |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 42 | { |
| 43 | } |
| 44 | |
| 45 | Pit::~Pit() |
| 46 | { |
| 47 | } |
| 48 | |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 49 | std::pair<shared_ptr<pit::Entry>, bool> |
| 50 | Pit::insert(const Interest& interest) |
| 51 | { |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 52 | // first lookup() the Interest Name in the NameTree, which will creates all |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 53 | // the intermedia nodes, starting from the shortest prefix. |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 54 | shared_ptr<name_tree::Entry> nameTreeEntry = m_nameTree.lookup(interest.getName()); |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 55 | BOOST_ASSERT(static_cast<bool>(nameTreeEntry)); |
| 56 | |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 57 | const std::vector<shared_ptr<pit::Entry>>& pitEntries = nameTreeEntry->getPitEntries(); |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 58 | |
| 59 | // then check if this Interest is already in the PIT entries |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 60 | auto it = std::find_if(pitEntries.begin(), pitEntries.end(), |
| 61 | [&interest] (const shared_ptr<pit::Entry>& entry) { |
| 62 | return entry->getInterest().getName() == interest.getName() && |
| 63 | entry->getInterest().getSelectors() == interest.getSelectors(); |
| 64 | }); |
| 65 | if (it != pitEntries.end()) { |
| 66 | return { *it, false }; |
| 67 | } |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 68 | |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 69 | shared_ptr<pit::Entry> entry = make_shared<pit::Entry>(interest); |
| 70 | nameTreeEntry->insertPitEntry(entry); |
| 71 | m_nItems++; |
| 72 | return { entry, true }; |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 73 | } |
| 74 | |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 75 | pit::DataMatchResult |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 76 | Pit::findAllDataMatches(const Data& data) const |
| 77 | { |
Junxiao Shi | 2b73ca3 | 2014-11-17 19:16:08 -0700 | [diff] [blame^] | 78 | auto&& ntMatches = m_nameTree.findAllMatches(data.getName(), |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 79 | [] (const name_tree::Entry& entry) { return entry.hasPitEntries(); }); |
Junxiao Shi | 2b73ca3 | 2014-11-17 19:16:08 -0700 | [diff] [blame^] | 80 | |
| 81 | pit::DataMatchResult matches; |
| 82 | for (const name_tree::Entry& nte : ntMatches) { |
| 83 | for (const shared_ptr<pit::Entry>& pitEntry : nte.getPitEntries()) { |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 84 | if (pitEntry->getInterest().matchesData(data)) |
| 85 | matches.emplace_back(pitEntry); |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 86 | } |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 87 | } |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 88 | |
Junxiao Shi | b2bcbcd | 2014-11-08 09:30:28 -0700 | [diff] [blame] | 89 | return matches; |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | void |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 93 | Pit::erase(shared_ptr<pit::Entry> pitEntry) |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 94 | { |
Junxiao Shi | 9f7455b | 2014-04-07 21:02:16 -0700 | [diff] [blame] | 95 | shared_ptr<name_tree::Entry> nameTreeEntry = m_nameTree.get(*pitEntry); |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 96 | BOOST_ASSERT(static_cast<bool>(nameTreeEntry)); |
| 97 | |
Junxiao Shi | 9f7455b | 2014-04-07 21:02:16 -0700 | [diff] [blame] | 98 | nameTreeEntry->erasePitEntry(pitEntry); |
| 99 | m_nameTree.eraseEntryIfEmpty(nameTreeEntry); |
Haowei Yuan | 78c84d1 | 2014-02-27 15:35:13 -0600 | [diff] [blame] | 100 | |
Junxiao Shi | 9f7455b | 2014-04-07 21:02:16 -0700 | [diff] [blame] | 101 | --m_nItems; |
Junxiao Shi | cbba04c | 2014-01-26 14:21:22 -0700 | [diff] [blame] | 102 | } |
| 103 | |
Alexander Afanasyev | 18bbf81 | 2014-01-29 01:40:23 -0800 | [diff] [blame] | 104 | } // namespace nfd |