| 1 | #pragma once
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| 2 |
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| 3 | #include "souffle/utility/ContainerUtil.h"
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| 4 | #include "souffle/utility/MiscUtil.h"
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| 5 | #include "souffle/utility/json11.h"
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| 6 | #include <cassert>
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| 7 | #include <chrono>
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| 8 | #include <cstddef>
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| 9 | #include <fstream>
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| 10 | #include <iostream>
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| 11 | #include <iterator>
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| 12 | #include <map>
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| 13 | #include <memory>
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| 14 | #include <mutex>
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| 15 | #include <set>
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| 16 | #include <stdexcept>
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| 17 | #include <string>
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| 18 | #include <utility>
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| 19 | #include <vector>
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| 20 |
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| 21 | namespace souffle {
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| 22 | namespace profile {
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| 23 |
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| 24 | class DirectoryEntry;
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| 25 | class DurationEntry;
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| 26 | class SizeEntry;
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| 27 | class TextEntry;
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| 28 | class TimeEntry;
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| 29 |
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| 30 | /**
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| 31 | * Visitor Interface
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| 32 | */
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| 33 | class Visitor {
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| 34 | public:
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| 35 | virtual ~Visitor() = default;
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| 36 |
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| 37 | // visit entries in a directory
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| 38 | virtual void visit(DirectoryEntry& e);
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| 39 |
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| 40 | // visit entries
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| 41 | virtual void visit(DurationEntry&) {}
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| 42 | virtual void visit(SizeEntry&) {}
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| 43 | virtual void visit(TextEntry&) {}
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| 44 | virtual void visit(TimeEntry&) {}
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| 45 | };
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| 46 |
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| 47 | /**
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| 48 | * Entry class
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| 49 | *
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| 50 | * abstract class for a key/value entry in a hierarchical database
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| 51 | */
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| 52 | class Entry {
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| 53 | private:
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| 54 | // entry key
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| 55 | std::string key;
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| 56 |
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| 57 | public:
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| 58 | Entry(std::string key) : key(std::move(key)) {}
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| 59 | virtual ~Entry() = default;
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| 60 |
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| 61 | // get key
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| 62 | const std::string& getKey() const {
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| 63 | return key;
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| 64 | };
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| 65 |
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| 66 | // accept visitor
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| 67 | virtual void accept(Visitor& v) = 0;
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| 68 |
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| 69 | // print
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| 70 | virtual void print(std::ostream& os, int tabpos) const = 0;
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| 71 | };
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| 72 |
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| 73 | /**
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| 74 | * DirectoryEntry entry
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| 75 | */
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| 76 | class DirectoryEntry : public Entry {
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| 77 | private:
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| 78 | std::map<std::string, Own<Entry>> entries;
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| 79 | mutable std::mutex lock;
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| 80 |
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| 81 | public:
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| 82 | DirectoryEntry(const std::string& name) : Entry(name) {}
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| 83 |
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| 84 | // get keys
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| 85 | const std::set<std::string> getKeys() const {
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| 86 | std::set<std::string> result;
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| 87 | std::lock_guard<std::mutex> guard(lock);
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| 88 | for (auto const& cur : entries) {
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| 89 | result.insert(cur.first);
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| 90 | }
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| 91 | return result;
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| 92 | }
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| 93 |
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| 94 | // write entry
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| 95 | Entry* writeEntry(Own<Entry> entry) {
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| 96 | assert(entry != nullptr && "null entry");
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| 97 | std::lock_guard<std::mutex> guard(lock);
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| 98 | const std::string& keyToWrite = entry->getKey();
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| 99 | // Don't rewrite an existing entry
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| 100 | if (entries.count(keyToWrite) == 0) {
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| 101 | entries[keyToWrite] = std::move(entry);
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| 102 | }
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| 103 | return entries[keyToWrite].get();
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| 104 | }
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| 105 |
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| 106 | // read entry
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| 107 | Entry* readEntry(const std::string& keyToRead) const {
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| 108 | std::lock_guard<std::mutex> guard(lock);
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| 109 | auto it = entries.find(keyToRead);
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| 110 | if (it != entries.end()) {
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| 111 | return (*it).second.get();
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| 112 | } else {
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| 113 | return nullptr;
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| 114 | }
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| 115 | }
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| 116 |
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| 117 | // read directory
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| 118 | DirectoryEntry* readDirectoryEntry(const std::string& keyToRead) const {
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| 119 | return as<DirectoryEntry>(readEntry(keyToRead));
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| 120 | }
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| 121 |
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| 122 | // accept visitor
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| 123 | void accept(Visitor& v) override {
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| 124 | v.visit(*this);
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| 125 | }
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| 126 |
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| 127 | // print directory
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| 128 | void print(std::ostream& os, int tabpos) const override {
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| 129 | os << std::string(tabpos, ' ') << '"' << getKey() << "\": {" << std::endl;
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| 130 | bool first{true};
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| 131 | for (auto const& cur : entries) {
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| 132 | if (!first) {
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| 133 | os << ',' << std::endl;
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| 134 | } else {
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| 135 | first = false;
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| 136 | }
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| 137 | cur.second->print(os, tabpos + 1);
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| 138 | }
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| 139 | os << std::endl << std::string(tabpos, ' ') << '}';
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| 140 | }
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| 141 | };
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| 142 |
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| 143 | /**
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| 144 | * SizeEntry
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| 145 | */
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| 146 | class SizeEntry : public Entry {
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| 147 | private:
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| 148 | std::size_t size; // size
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| 149 | public:
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| 150 | SizeEntry(const std::string& key, std::size_t size) : Entry(key), size(size) {}
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| 151 |
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| 152 | // get size
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| 153 | std::size_t getSize() const {
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| 154 | return size;
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| 155 | }
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| 156 |
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| 157 | // accept visitor
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| 158 | void accept(Visitor& v) override {
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| 159 | v.visit(*this);
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| 160 | }
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| 161 |
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| 162 | // print entry
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| 163 | void print(std::ostream& os, int tabpos) const override {
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| 164 | os << std::string(tabpos, ' ') << "\"" << getKey() << "\": " << size;
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| 165 | }
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| 166 | };
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| 167 |
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| 168 | /**
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| 169 | * TextEntry
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| 170 | */
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| 171 | class TextEntry : public Entry {
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| 172 | private:
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| 173 | // entry text
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| 174 | std::string text;
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| 175 |
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| 176 | public:
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| 177 | TextEntry(const std::string& key, std::string text) : Entry(key), text(std::move(text)) {}
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| 178 |
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| 179 | // get text
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| 180 | const std::string& getText() const {
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| 181 | return text;
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| 182 | }
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| 183 |
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| 184 | // accept visitor
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| 185 | void accept(Visitor& v) override {
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| 186 | v.visit(*this);
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| 187 | }
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| 188 |
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| 189 | // write size entry
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| 190 | void print(std::ostream& os, int tabpos) const override {
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| 191 | os << std::string(tabpos, ' ') << "\"" << getKey() << "\": \"" << text << "\"";
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| 192 | }
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| 193 | };
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| 194 |
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| 195 | /**
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| 196 | * Duration Entry
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| 197 | */
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| 198 | class DurationEntry : public Entry {
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| 199 | private:
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| 200 | // duration start
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| 201 | microseconds start;
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| 202 |
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| 203 | // duration end
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| 204 | microseconds end;
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| 205 |
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| 206 | public:
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| 207 | DurationEntry(const std::string& key, microseconds start, microseconds end)
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| 208 | : Entry(key), start(start), end(end) {}
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| 209 |
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| 210 | // get start
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| 211 | microseconds getStart() const {
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| 212 | return start;
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| 213 | }
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| 214 |
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| 215 | // get end
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| 216 | microseconds getEnd() const {
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| 217 | return end;
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| 218 | }
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| 219 |
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| 220 | // accept visitor
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| 221 | void accept(Visitor& v) override {
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| 222 | v.visit(*this);
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| 223 | }
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| 224 |
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| 225 | // write size entry
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| 226 | void print(std::ostream& os, int tabpos) const override {
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| 227 | os << std::string(tabpos, ' ') << '"' << getKey();
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| 228 | os << R"_(": { "start": )_";
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| 229 | os << start.count();
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| 230 | os << ", \"end\": ";
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| 231 | os << end.count();
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| 232 | os << '}';
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| 233 | }
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| 234 | };
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| 235 |
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| 236 | /**
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| 237 | * Time Entry
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| 238 | */
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| 239 | class TimeEntry : public Entry {
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| 240 | private:
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| 241 | // time since start
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| 242 | microseconds time;
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| 243 |
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| 244 | public:
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| 245 | TimeEntry(const std::string& key, microseconds time) : Entry(key), time(time) {}
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| 246 |
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| 247 | // get start
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| 248 | microseconds getTime() const {
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| 249 | return time;
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| 250 | }
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| 251 |
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| 252 | // accept visitor
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| 253 | void accept(Visitor& v) override {
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| 254 | v.visit(*this);
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| 255 | }
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| 256 |
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| 257 | // write size entry
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| 258 | void print(std::ostream& os, int tabpos) const override {
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| 259 | os << std::string(tabpos, ' ') << '"' << getKey();
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| 260 | os << R"_(": { "time": )_";
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| 261 | os << time.count();
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| 262 | os << '}';
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| 263 | }
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| 264 | };
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| 265 |
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| 266 | inline void Visitor::visit(DirectoryEntry& e) {
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| 267 | std::cout << "Dir " << e.getKey() << "\n";
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| 268 | for (const auto& cur : e.getKeys()) {
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| 269 | std::cout << "\t :" << cur << "\n";
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| 270 | e.readEntry(cur)->accept(*this);
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| 271 | }
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| 272 | }
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| 273 |
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| 274 | class Counter : public Visitor {
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| 275 | private:
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| 276 | std::size_t ctr{0};
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| 277 | std::string key;
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| 278 |
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| 279 | public:
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| 280 | Counter(std::string key) : key(std::move(key)) {}
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| 281 | void visit(SizeEntry& e) override {
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| 282 | std::cout << "Size entry : " << e.getKey() << " " << e.getSize() << "\n";
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| 283 | if (e.getKey() == key) {
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| 284 | ctr += e.getSize();
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| 285 | }
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| 286 | }
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| 287 | std::size_t getCounter() const {
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| 288 | return ctr;
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| 289 | }
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| 290 | };
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| 291 |
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| 292 | /**
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| 293 | * Hierarchical databas
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| 294 | */
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| 295 | class ProfileDatabase {
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| 296 | private:
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| 297 | Own<DirectoryEntry> root;
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| 298 |
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| 299 | protected:
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| 300 | /**
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| 301 | * Find path: if directories along the path do not exist, create them.
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| 302 | */
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| 303 | DirectoryEntry* lookupPath(const std::vector<std::string>& path) {
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| 304 | DirectoryEntry* dir = root.get();
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| 305 | for (const std::string& key : path) {
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| 306 | assert(!key.empty() && "Key is empty!");
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| 307 | DirectoryEntry* newDir = dir->readDirectoryEntry(key);
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| 308 | if (newDir == nullptr) {
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| 309 | newDir = as<DirectoryEntry>(dir->writeEntry(mk<DirectoryEntry>(key)));
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| 310 | }
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| 311 | assert(newDir != nullptr && "Attempting to overwrite an existing entry");
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| 312 | dir = newDir;
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| 313 | }
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| 314 | return dir;
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| 315 | }
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| 316 |
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| 317 | void parseJson(const json11::Json& json, Own<DirectoryEntry>& node) {
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| 318 | for (auto& cur : json.object_items()) {
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| 319 | if (cur.second.is_object()) {
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| 320 | std::string err;
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| 321 | // Duration entries are also maps
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| 322 | if (cur.second.has_shape(
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| 323 | {{"start", json11::Json::NUMBER}, {"end", json11::Json::NUMBER}}, err)) {
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| 324 | auto start = std::chrono::microseconds(cur.second["start"].long_value());
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| 325 | auto end = std::chrono::microseconds(cur.second["end"].long_value());
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| 326 | node->writeEntry(mk<DurationEntry>(cur.first, start, end));
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| 327 | } else if (cur.second.has_shape({{"time", json11::Json::NUMBER}}, err)) {
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| 328 | auto time = std::chrono::microseconds(cur.second["time"].long_value());
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| 329 | node->writeEntry(mk<TimeEntry>(cur.first, time));
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| 330 | } else {
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| 331 | auto dir = mk<DirectoryEntry>(cur.first);
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| 332 | parseJson(cur.second, dir);
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| 333 | node->writeEntry(std::move(dir));
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| 334 | }
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| 335 | } else if (cur.second.is_string()) {
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| 336 | node->writeEntry(mk<TextEntry>(cur.first, cur.second.string_value()));
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| 337 | } else if (cur.second.is_number()) {
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| 338 | node->writeEntry(mk<SizeEntry>(cur.first, cur.second.long_value()));
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| 339 | } else {
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| 340 | std::string err;
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| 341 | cur.second.dump(err);
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| 342 | std::cerr << "Unknown types in profile log: " << cur.first << ": " << err << std::endl;
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| 343 | }
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| 344 | }
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| 345 | }
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| 346 |
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| 347 | public:
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| 348 | ProfileDatabase() : root(mk<DirectoryEntry>("root")) {}
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| 349 |
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| 350 | ProfileDatabase(const std::string& filename) : root(mk<DirectoryEntry>("root")) {
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| 351 | std::ifstream file(filename);
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| 352 | if (!file.is_open()) {
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| 353 | throw std::runtime_error("Log file could not be opened.");
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| 354 | }
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| 355 | std::string jsonString((std::istreambuf_iterator<char>(file)), (std::istreambuf_iterator<char>()));
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| 356 | std::string error;
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| 357 | json11::Json json = json11::Json::parse(jsonString, error);
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| 358 | if (!error.empty()) {
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| 359 | throw std::runtime_error("Parse error: " + error);
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| 360 | }
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| 361 | parseJson(json["root"], root);
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| 362 | }
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| 363 |
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| 364 | // add size entry
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| 365 | void addSizeEntry(std::vector<std::string> qualifier, std::size_t size) {
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| 366 | assert(qualifier.size() > 0 && "no qualifier");
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| 367 | std::vector<std::string> path(qualifier.begin(), qualifier.end() - 1);
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| 368 | DirectoryEntry* dir = lookupPath(path);
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| 369 |
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| 370 | const std::string& key = qualifier.back();
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| 371 | Own<SizeEntry> entry = mk<SizeEntry>(key, size);
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| 372 | dir->writeEntry(std::move(entry));
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| 373 | }
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| 374 |
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| 375 | // add text entry
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| 376 | void addTextEntry(std::vector<std::string> qualifier, const std::string& text) {
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| 377 | assert(qualifier.size() > 0 && "no qualifier");
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| 378 | std::vector<std::string> path(qualifier.begin(), qualifier.end() - 1);
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| 379 | DirectoryEntry* dir = lookupPath(path);
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| 380 |
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| 381 | const std::string& key = qualifier.back();
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| 382 | Own<TextEntry> entry = mk<TextEntry>(key, text);
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| 383 | dir->writeEntry(std::move(entry));
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| 384 | }
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| 385 |
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| 386 | // add duration entry
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| 387 | void addDurationEntry(std::vector<std::string> qualifier, microseconds start, microseconds end) {
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| 388 | assert(qualifier.size() > 0 && "no qualifier");
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| 389 | std::vector<std::string> path(qualifier.begin(), qualifier.end() - 1);
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| 390 | DirectoryEntry* dir = lookupPath(path);
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| 391 |
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| 392 | const std::string& key = qualifier.back();
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| 393 | Own<DurationEntry> entry = mk<DurationEntry>(key, start, end);
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| 394 | dir->writeEntry(std::move(entry));
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| 395 | }
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| 396 |
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| 397 | // add time entry
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| 398 | void addTimeEntry(std::vector<std::string> qualifier, microseconds time) {
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| 399 | assert(qualifier.size() > 0 && "no qualifier");
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| 400 | std::vector<std::string> path(qualifier.begin(), qualifier.end() - 1);
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| 401 | DirectoryEntry* dir = lookupPath(path);
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| 402 |
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| 403 | const std::string& key = qualifier.back();
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| 404 | Own<TimeEntry> entry = mk<TimeEntry>(key, time);
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| 405 | dir->writeEntry(std::move(entry));
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| 406 | }
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| 407 |
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| 408 | // compute sum
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| 409 | std::size_t computeSum(const std::vector<std::string>& qualifier) {
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| 410 | assert(qualifier.size() > 0 && "no qualifier");
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| 411 | std::vector<std::string> path(qualifier.begin(), qualifier.end() - 1);
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| 412 | DirectoryEntry* dir = lookupPath(path);
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| 413 |
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| 414 | const std::string& key = qualifier.back();
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| 415 | std::cout << "Key: " << key << std::endl;
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| 416 | Counter ctr(key);
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| 417 | dir->accept(ctr);
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| 418 | return ctr.getCounter();
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| 419 | }
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| 420 |
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| 421 | /**
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| 422 | * Return the entry at the given path.
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| 423 | */
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| 424 | Entry* lookupEntry(const std::vector<std::string>& path) const {
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| 425 | DirectoryEntry* dir = root.get();
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| 426 | auto last = --path.end();
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| 427 | for (auto it = path.begin(); it != last; ++it) {
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| 428 | dir = dir->readDirectoryEntry(*it);
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| 429 | if (dir == nullptr) {
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| 430 | return nullptr;
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| 431 | }
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| 432 | }
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| 433 | return dir->readEntry(*last);
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| 434 | }
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| 435 |
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| 436 | /**
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| 437 | * Return a map of string keys to string values.
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| 438 | */
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| 439 | std::map<std::string, std::string> getStringMap(const std::vector<std::string>& path) const {
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| 440 | std::map<std::string, std::string> kvps;
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| 441 | auto* parent = as<DirectoryEntry>(lookupEntry(path));
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| 442 | if (parent == nullptr) {
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| 443 | return kvps;
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| 444 | }
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| 445 |
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| 446 | for (const auto& key : parent->getKeys()) {
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| 447 | auto* text = as<TextEntry>(parent->readEntry(key));
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| 448 | if (text != nullptr) {
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| 449 | kvps[key] = text->getText();
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| 450 | }
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| 451 | }
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| 452 |
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| 453 | return kvps;
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| 454 | }
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| 455 |
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| 456 | // print database
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| 457 | void print(std::ostream& os) const {
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| 458 | os << '{' << std::endl;
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| 459 | root->print(os, 1);
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| 460 | os << std::endl << '}' << std::endl;
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| 461 | };
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| 462 | };
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| 463 |
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| 464 | } // namespace profile
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| 465 | } // namespace souffle
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