🚚 moved xxhash back from submodule to header

.gitmodules

@@ -4,9 +4,6 @@
 [submodule "drogon"]
 	path = third_party/drogon
 	url = https://github.com/an-tao/drogon
-[submodule "third_party/xxHash"]
-	path = third_party/xxHash
-	url = https://github.com/Cyan4973/xxHash
 [submodule "third_party/base64"]
 	path = third_party/base64
 	url = https://github.com/aklomp/base64

CMakeLists.txt

@@ -14,8 +14,6 @@ find_package(Threads REQUIRED)
 
 add_executable(${PROJECT_NAME} main.cpp )
 
-add_subdirectory(third_party/xxHash/cmake_unofficial third_party/xxHash/build EXCLUDE_FROM_ALL)
-
 target_sources(${PROJECT_NAME} PRIVATE
     src/bank_api.cpp
     src/bank_resp.cpp
@@ -23,10 +21,12 @@ target_sources(${PROJECT_NAME} PRIVATE
     src/change_flag.cpp
     src/json_filter.cpp
     src/log.cpp
+    src/simdjson.cpp
     src/transaction.cpp
     src/user_filter.cpp
     src/user.cpp
     src/xxhash_str.cpp
+    src/xxhash.c
 )
 
 if(DEFINED USER_SAVE_LOC)
@@ -77,7 +77,6 @@ target_include_directories(${PROJECT_NAME} PUBLIC third_party/base64/include)
 add_subdirectory(third_party/drogon)
 target_link_libraries(${PROJECT_NAME} PRIVATE drogon)
 target_link_libraries(${PROJECT_NAME} PRIVATE ${CMAKE_THREAD_LIBS_INIT} )
-target_link_libraries(${PROJECT_NAME} PRIVATE xxHash::xxhash)
 
 #AVX2_CFLAGS=-mavx2 SSSE3_CFLAGS=-mssse3 SSE41_CFLAGS=-msse4.1 SSE42_CFLAGS=-msse4.2 AVX_CFLAGS=-mavx make lib/libbase64.o
 target_link_libraries(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/third_party/base64/lib/libbase64.o)

include/xxhash_str.h

@@ -1,6 +1,6 @@
 #pragma once
 #include <string>
-#include <xxhash.h>
+#include "xxhash.h"
 
 struct xxHashStringGen
 {

src/xxhash.c

@@ -0,0 +1,42 @@
+/*
+ * xxHash - Extremely Fast Hash algorithm
+ * Copyright (C) 2012-2020 Yann Collet
+ *
+ * BSD 2-Clause License (https://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other materials provided with the
+ *      distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You can contact the author at:
+ *   - xxHash homepage: https://www.xxhash.com
+ *   - xxHash source repository: https://github.com/Cyan4973/xxHash
+ */
+
+/*
+ * xxhash.c instantiates functions defined in xxhash.h
+ */
+
+#define XXH_STATIC_LINKING_ONLY /* access advanced declarations */
+#define XXH_IMPLEMENTATION      /* access definitions */
+
+#include "xxhash.h"

third_party/xxHash

@@ -1 +0,0 @@
-Subproject commit 0e49217046917180b9118a2d89aceaa76a65cf51