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Use tessil/unordered-map instead of nlohmann/fifo-map to mitigate performance issues when logging JSON

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This commit is contained in:
Tim Wojtulewicz 2019-09-25 16:11:32 -07:00
parent 1253a61340
commit c8f2d52d91
4 changed files with 24 additions and 10 deletions
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13
src/Val.cc
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@ -28,14 +28,19 @@
#include "broker/Data.h"
#include "3rdparty/json.hpp"
#include "3rdparty/fifo_map.hpp"
#include "3rdparty/tsl-ordered-map/ordered_map.h"
// Define a class for use with the json library that orders the keys in the same order that
// they were inserted. By default, the json library orders them alphabetically and we don't
// want it like that.
template<class K, class V, class compare, class A>
using json_fifo_map = nlohmann::fifo_map<K, V, nlohmann::fifo_map_compare<K>, A>;
using ZeekJson = nlohmann::basic_json<json_fifo_map>;
template<class Key, class T, class Ignore, class Allocator,
class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>,
class AllocatorPair = typename std::allocator_traits<Allocator>::template rebind_alloc<std::pair<Key, T>>,
class ValueTypeContainer = std::vector<std::pair<Key, T>, AllocatorPair>>
using ordered_map = tsl::ordered_map<Key, T, Hash, KeyEqual, AllocatorPair, ValueTypeContainer>;
using ZeekJson = nlohmann::basic_json<ordered_map>;
Val::Val(Func* f)
{