test: add jsoncpp benchmark

BUILD.bazel

@@ -33,6 +33,7 @@ cc_binary(
         "@cJSON",
         "@yyjson",
         "@simdjson",
+        "@jsoncpp//:jsoncpp",
     ],
     copts = common_copts + ['-DNDEBUG', '-std=c++17'],
     linkopts = ['-lstdc++fs'],

WORKSPACE

@@ -42,6 +42,12 @@ new_git_repository(
     remote = "https://github.com/ibireme/yyjson.git",
 )
 
+git_repository(
+    name = "jsoncpp",
+    branch = "master",
+    remote = "https://github.com/open-source-parsers/jsoncpp",
+)
+
 git_repository(
     name = "gflags",
     branch = "master",

benchmark/CMakeLists.txt

@@ -8,6 +8,7 @@ set(COMPILE_FLAGS -O3 -DNDEBUG -g -mavx2 -mpclmul -mbmi -mlzcnt)
 
 include("${PROJECT_SOURCE_DIR}/cmake/external.cmake")
 
+unset(CMAKE_RUNTIME_OUTPUT_DIRECTORY CACHE)
 add_executable(bench "${BENCH_SRC}")
 
 set(EP_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/)
@@ -23,14 +24,15 @@ ExternalProject_Add(
 add_dependencies(bench google_benchmark)
 
 target_compile_features(bench PRIVATE cxx_std_17)
-target_link_libraries(bench simdjson yyjson cjson benchmark benchmark_main pthread stdc++fs)
+target_link_libraries(bench simdjson yyjson cjson jsoncpp_lib benchmark benchmark_main pthread stdc++fs)
 target_include_directories(bench 
     PRIVATE ${rapidjson_SOURCE_DIR}/include
     PRIVATE ${PROJECT_SOURCE_DIR}/include ${PROJECT_SOURCE_DIR} 
     PRIVATE ${EP_PREFIX}/src/google_benchmark/include/
     PRIVATE ${cjson_SOURCE_DIR}/
     PRIVATE ${yyjson_SOURCE_DIR}/src/
     PRIVATE ${simdjson_SOURCE_DIR}/singleheader/
+    PRIVATE ${jsoncpp_SOURCE_DIR}/include/
 )
 target_link_directories(bench 
     PRIVATE ${EP_PREFIX}/src/google_benchmark-build/src

benchmark/jsoncpp.hpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2022 ByteDance Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _JsonCpp_HPP_
+#define _JsonCpp_HPP_
+#include "json.h"
+#include "json/json.h"
+
+class JsonCppStringResult : public StringResult<JsonCppStringResult> {
+ public:
+  std::string_view str_impl() const { return data.c_str(); }
+  std::string data;
+};
+
+class JsonCppParseResult
+    : public ParseResult<JsonCppParseResult, JsonCppStringResult> {
+ public:
+  Json::Value document;
+
+  JsonCppParseResult(std::string_view json) { (void)json; }
+  ~JsonCppParseResult() {}
+
+  bool contains_impl(std::string_view key) const {
+    return document.isMember(key.data(), key.data() + key.size());
+  }
+
+  bool stringfy_impl(JsonCppStringResult &sr) const {
+    Json::StreamWriterBuilder writer_builder;
+    std::unique_ptr<Json::StreamWriter> stream_writer(
+        writer_builder.newStreamWriter());
+    std::ostringstream oss;
+    int res = stream_writer->write(document, &oss);
+    sr.data = oss.str();
+    return (res == 0 && oss.good());
+  }
+
+  bool prettify_impl(JsonCppStringResult &sr) const {
+    (void)sr;
+    return false;
+  }
+
+  bool stat_impl(DocStat &stat) const {
+    (void)stat;
+    return true;
+  }
+
+  bool find_impl(DocStat &stat) const {
+    (void)stat;
+    return true;
+  }
+
+ private:
+};
+
+class JsonCpp : public JsonBase<JsonCpp, JsonCppParseResult> {
+ public:
+  bool parse_impl(std::string_view json, JsonCppParseResult &pr) const {
+    Json::CharReaderBuilder reader_builder;
+    std::unique_ptr<Json::CharReader> char_reader(
+        reader_builder.newCharReader());
+    if (!char_reader->parse(json.data(), json.data() + json.size(),
+                            &pr.document, nullptr)) {
+      return false;
+    }
+    return true;
+  }
+};
+
+#endif

benchmark/main.cpp

@@ -23,6 +23,7 @@
 #include <string_view>
 
 #include "cjson.hpp"
+#include "jsoncpp.hpp"
 #include "ondemand.hpp"
 #include "rapidjson.hpp"
 #include "simdjson.hpp"
@@ -225,6 +226,7 @@ int main(int argc, char **argv) {
       ADD_JSON_BMK(Rapidjson, METHOD); \
       ADD_JSON_BMK(YYjson, METHOD);    \
       ADD_JSON_BMK(SIMDjson, METHOD);  \
+      ADD_JSON_BMK(JsonCpp, METHOD);   \
     }                                  \
   } while (0)
 

cmake/external.cmake

@@ -54,3 +54,9 @@ FetchContent_Declare(
     GIT_SHALLOW TRUE)
 FetchContent_MakeAvailable(yyjson)
 
+FetchContent_Declare(
+    jsoncpp
+    GIT_REPOSITORY https://github.com/open-source-parsers/jsoncpp.git
+    GIT_TAG  master
+    GIT_SHALLOW TRUE)
+FetchContent_MakeAvailable(jsoncpp)