watchdog: add

Signed-off-by: Simon Rozman <simon@rozman.si>

UnitTests/UnitTests.vcxproj

@@ -128,6 +128,7 @@
     <ClCompile Include="sgml.cpp" />
     <ClCompile Include="stream.cpp" />
     <ClCompile Include="unicode.cpp" />
+    <ClCompile Include="watchdog.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="compat.hpp" />

UnitTests/UnitTests.vcxproj.filters

@@ -39,6 +39,9 @@
     <ClCompile Include="hash.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="watchdog.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="pch.hpp">

UnitTests/main.cpp

@@ -11,6 +11,7 @@
 #include "sgml.cpp"
 #include "stream.cpp"
 #include "unicode.cpp"
+#include "watchdog.cpp"
 #include <iostream>
 
 int main(int argc, const char * argv[])
@@ -34,6 +35,7 @@ int main(int argc, const char * argv[])
 		UnitTests::unicode::str2wstr();
 		UnitTests::unicode::wstr2str();
 		UnitTests::unicode::charset_encoder();
+		UnitTests::watchdog::test();
 		std::cout << "PASS\n";
 		return 0;
 	}

UnitTests/pch.hpp

@@ -1,4 +1,4 @@
-/*
+/*
 	SPDX-License-Identifier: MIT
 	Copyright © 2023 Amebis
 */
@@ -23,6 +23,7 @@
 #include <stdex/system.hpp>
 #include <stdex/unicode.hpp>
 #include <stdex/vector_queue.hpp>
+#include <stdex/watchdog.hpp>
 
 #include "compat.hpp"
 

UnitTests/watchdog.cpp

@@ -0,0 +1,32 @@
+/*
+	SPDX-License-Identifier: MIT
+	Copyright © 2023 Amebis
+*/
+
+#include "pch.hpp"
+
+using namespace std;
+#ifdef _WIN32
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+#endif
+
+namespace UnitTests
+{
+	TEST_CLASS(watchdog)
+	{
+	public:
+		TEST_METHOD(test)
+		{
+			volatile bool wd_called = false;
+			stdex::watchdog<std::chrono::steady_clock> wd(
+				std::chrono::milliseconds(100), [&] { wd_called = true; });
+			for (int i = 0; i < 100; ++i) {
+				std::this_thread::sleep_for(std::chrono::milliseconds(10));
+				Assert::IsFalse(wd_called);
+				wd.reset();
+			}
+			std::this_thread::sleep_for(std::chrono::milliseconds(300));
+			Assert::IsTrue(wd_called);
+		}
+	};
+}