From 88f0a7831ed4db1d407e2ab71fb6d0e5118a40cd Mon Sep 17 00:00:00 2001
From: i7-8700 <1281261856@qq.com>
Date: Fri, 13 Dec 2019 22:33:36 +0800
Subject: [PATCH] testing atomic

---
 test/test.sln                                |  11 ++
 test/test_atomic/test_atomic.cpp             |  54 ++++++++
 test/test_atomic/test_atomic.vcxproj         | 131 +++++++++++++++++++
 test/test_atomic/test_atomic.vcxproj.filters |  22 ++++
 test/test_atomic/test_atomic.vcxproj.user    |   4 +
 5 files changed, 222 insertions(+)
 create mode 100644 test/test_atomic/test_atomic.cpp
 create mode 100644 test/test_atomic/test_atomic.vcxproj
 create mode 100644 test/test_atomic/test_atomic.vcxproj.filters
 create mode 100644 test/test_atomic/test_atomic.vcxproj.user

diff --git a/test/test.sln b/test/test.sln
index a389007..6295f4d 100644
--- a/test/test.sln
+++ b/test/test.sln
@@ -240,6 +240,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_date", "test_date\test
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_logstream", "test_logstream\test_logstream.vcxproj", "{7DC0D84B-7F96-4BB9-9B8A-D86B7B031E61}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_atomic", "test_atomic\test_atomic.vcxproj", "{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
@@ -406,6 +408,14 @@ Global
 		{7DC0D84B-7F96-4BB9-9B8A-D86B7B031E61}.Release|x64.Build.0 = Release|x64
 		{7DC0D84B-7F96-4BB9-9B8A-D86B7B031E61}.Release|x86.ActiveCfg = Release|Win32
 		{7DC0D84B-7F96-4BB9-9B8A-D86B7B031E61}.Release|x86.Build.0 = Release|Win32
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Debug|x64.ActiveCfg = Debug|x64
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Debug|x64.Build.0 = Debug|x64
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Debug|x86.ActiveCfg = Debug|Win32
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Debug|x86.Build.0 = Debug|Win32
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Release|x64.ActiveCfg = Release|x64
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Release|x64.Build.0 = Release|x64
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Release|x86.ActiveCfg = Release|Win32
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -452,6 +462,7 @@ Global
 		{26D2B628-713F-419A-B2E2-32BDFA803E3C} = {21DC893D-AB0B-48E1-9E23-069A025218D9}
 		{2252B5D4-2D13-4F02-8008-AB2E0D38A154} = {D9BC4E5B-7E8F-4C86-BF15-CCB75CBC256F}
 		{7DC0D84B-7F96-4BB9-9B8A-D86B7B031E61} = {D9BC4E5B-7E8F-4C86-BF15-CCB75CBC256F}
+		{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F} = {D9BC4E5B-7E8F-4C86-BF15-CCB75CBC256F}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {A8EBEA58-739C-4DED-99C0-239779F57D5D}
diff --git a/test/test_atomic/test_atomic.cpp b/test/test_atomic/test_atomic.cpp
new file mode 100644
index 0000000..3844cf1
--- /dev/null
+++ b/test/test_atomic/test_atomic.cpp
@@ -0,0 +1,54 @@
+#include <atomic>
+#include <thread>
+#include <chrono>
+#include <stdio.h>
+#include <assert.h>
+
+void test()
+{	
+	using namespace std;
+	using namespace std::chrono;
+
+	uint32_t count = 0;
+	while (true) {
+		atomic_int x(0), y(0);
+		int r1 = 0, r2 = 0;
+
+		thread t1([&x, &y, &r1, &r2]() {
+			// Thread 1:
+			this_thread::sleep_for(0ms); 
+			r1 = y.load(memory_order_relaxed); // A
+			x.store(r1, memory_order_relaxed); // B
+		});
+		
+		thread t2([&x, &y, &r1, &r2]() {
+			// Thread 2:
+			this_thread::sleep_for(0ms);
+			r2 = x.load(memory_order_relaxed); // C 
+			y.store(42, memory_order_relaxed); // D
+		});
+
+		t1.join();
+		t2.join();
+		count++;
+
+		if (r1 == 42 && r2 == 42) {
+			break;
+		}
+	}
+	
+	printf("after %d times trying, r1,r2 are finally 42!\n", count);
+}
+
+int main()
+{
+	test();
+
+
+	/*{
+		std::atomic_int32_t a0;
+		assert(a0.load() == 0);
+		assert(a0.fetch_add(1) == 0);
+		assert(a0.load() == 1);
+	}*/
+}
diff --git a/test/test_atomic/test_atomic.vcxproj b/test/test_atomic/test_atomic.vcxproj
new file mode 100644
index 0000000..eaffe3c
--- /dev/null
+++ b/test/test_atomic/test_atomic.vcxproj
@@ -0,0 +1,131 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <ProjectGuid>{58DA7AE8-9975-4F28-A1BF-44A7C01B6F7F}</ProjectGuid>
+    <RootNamespace>testatomic</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <SDLCheck>true</SDLCheck>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <SDLCheck>true</SDLCheck>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="test_atomic.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/test/test_atomic/test_atomic.vcxproj.filters b/test/test_atomic/test_atomic.vcxproj.filters
new file mode 100644
index 0000000..ab59cfd
--- /dev/null
+++ b/test/test_atomic/test_atomic.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="test_atomic.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/test/test_atomic/test_atomic.vcxproj.user b/test/test_atomic/test_atomic.vcxproj.user
new file mode 100644
index 0000000..88a5509
--- /dev/null
+++ b/test/test_atomic/test_atomic.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file
-- 
2.18.1