From b408094d1c4c9ed8b207276044433b569d38d075 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Tue, 26 Apr 2022 16:58:05 +0800
Subject: [PATCH] init source code

---
 .gitignore           |  3 ++
 CMakeLists.txt       | 16 +++++++++++
 src/binary.h         | 66 ++++++++++++++++++++++++++++++++++++++++++++
 tests/CMakeLists.txt |  6 ++++
 tests/binary_test.c  | 12 ++++++++
 5 files changed, 103 insertions(+)
 create mode 100644 CMakeLists.txt
 create mode 100644 src/binary.h
 create mode 100644 tests/CMakeLists.txt
 create mode 100644 tests/binary_test.c

diff --git a/.gitignore b/.gitignore
index c6127b3..800f757 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,6 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+
+build
+.vscode
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..33c7109
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.0.0)
+project(fumidb VERSION 1.0)
+SET(CMAKE_BUILD_TYPE "Release")
+
+include(TestBigEndian)
+test_big_endian(isBigEndian)
+if(${isBigEndian})
+    add_definitions(-DWORDS_BIGENDIAN)
+endif()
+
+option(BUILD_TEST "Whether to build tests" OFF)
+if(${BUILD_TEST})
+    message(STATUS "Building tests...")
+    enable_testing()
+    add_subdirectory(tests)
+endif()
\ No newline at end of file
diff --git a/src/binary.h b/src/binary.h
new file mode 100644
index 0000000..d8f5078
--- /dev/null
+++ b/src/binary.h
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#ifdef __linux__
+#  include <endian.h>
+#endif
+#ifdef __FreeBSD__
+#  include <sys/endian.h>
+#endif
+#ifdef __NetBSD__
+#  include <sys/endian.h>
+#endif
+#ifdef __OpenBSD__
+#  include <sys/types.h>
+#  define be16toh(x) betoh16(x)
+#  define be32toh(x) betoh32(x)
+#  define be64toh(x) betoh64(x)
+#endif
+#ifdef __MAC_10_0
+#  define be16toh(x) ntohs(x)
+#  define be32toh(x) ntohl(x)
+#  define be64toh(x) ntohll(x)
+#  define htobe16(x) ntohs(x)
+#  define htobe32(x) htonl(x)
+#  define htobe64(x) htonll(x)
+#endif
+#ifdef _WIN64
+	#ifdef WORDS_BIGENDIAN
+		#  define be16toh(x) (x)
+		#  define be32toh(x) (x)
+		#  define be64toh(x) (x)
+		#  define htobe16(x) (x)
+		#  define htobe32(x) (x)
+		#  define htobe64(x) (x)
+	#else
+		#  define be16toh(x) _byteswap_ushort(x)
+		#  define be32toh(x) _byteswap_ulong(x)
+		#  define be64toh(x) _byteswap_uint64(x)
+		#  define htobe16(x) _byteswap_ushort(x)
+		#  define htobe32(x) _byteswap_ulong(x)
+		#  define htobe64(x) _byteswap_uint64(x)
+	#endif
+#endif
+
+#ifdef _WIN64
+    #ifdef WORDS_BIGENDIAN
+        #define putle16(buf, x) (*(uint16_t*)(buf) = _byteswap_ushort((uint16_t)(x)))
+        #define putle32(buf, x) (*(uint32_t*)(buf) = _byteswap_ulong((uint32_t)(x)))
+        #define putle64(buf, x) (*(uint64_t*)(buf) = _byteswap_uint64((uint64_t)(x)))
+    #else
+        #define putle16(buf, x) (*(uint16_t*)(buf) = (uint16_t)(x))
+        #define putle32(buf, x) (*(uint32_t*)(buf) = (uint32_t)(x))
+        #define putle64(buf, x) (*(uint64_t*)(buf) = (uint64_t)(x))
+    #endif
+#else
+    #ifdef WORDS_BIGENDIAN
+        #define putle16(buf, x) (*(uint16_t*)(buf) = __builtin_bswap16((uint16_t)(x)))
+        #define putle32(buf, x) (*(uint32_t*)(buf) = __builtin_bswap32((uint32_t)(x)))
+        #define putle64(buf, x) (*(uint64_t*)(buf) = __builtin_bswap64((uint64_t)(x)))
+    #else
+        #define putle16(buf, x) (*(uint16_t*)(buf) = (uint16_t)(x))
+        #define putle32(buf, x) (*(uint32_t*)(buf) = (uint32_t)(x))
+        #define putle64(buf, x) (*(uint64_t*)(buf) = (uint64_t)(x))
+    #endif
+#endif
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..ba0ee0a
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.0.0)
+project(fumidb_test VERSION 1.0)
+
+add_executable(binary_test binary_test.c)
+
+add_test(test_binary binary_test COMMAND binary_test)
\ No newline at end of file
diff --git a/tests/binary_test.c b/tests/binary_test.c
new file mode 100644
index 0000000..1379f86
--- /dev/null
+++ b/tests/binary_test.c
@@ -0,0 +1,12 @@
+#include "../src/binary.h"
+
+int main() {
+    char buf[8];
+    putle16(buf, 1);
+    if(buf[0] != 1) return 1;
+    putle32(buf, 2);
+    if(buf[0] != 2) return 2;
+    putle64(buf, 3);
+    if(buf[0] != 3) return 3;
+    return 0;
+}