Added basic NamedMutex implementation

1 files changed, 45 insertions, 0 deletions

diff --git a/zencore/thread.cpp b/zencore/thread.cpp
index 4451fd302..5e558069b 100644
--- a/zencore/thread.cpp
+++ b/zencore/thread.cpp
@@ -94,6 +94,51 @@ NamedEvent::NamedEvent(std::string_view EventName) : Event(nullptr)
 	m_EventHandle = CreateEventA(nullptr, true, false, Name.c_str());
 }
 
+NamedMutex::~NamedMutex()
+{
+	if (m_MutexHandle)
+	{
+		CloseHandle(m_MutexHandle);
+	}
+}
+
+bool
+NamedMutex::Create(std::string_view MutexName)
+{
+	ZEN_ASSERT(m_MutexHandle == nullptr);
+
+	using namespace std::literals;
+
+	ExtendableStringBuilder<64> Name;
+	Name << "Global\\"sv;
+	Name << MutexName;
+
+	m_MutexHandle = CreateMutexA(nullptr, /* InitialOwner */ TRUE, Name.c_str());
+
+	return !!m_MutexHandle;
+}
+
+bool
+NamedMutex::Exists(std::string_view MutexName)
+{
+	using namespace std::literals;
+
+	ExtendableStringBuilder<64> Name;
+	Name << "Global\\"sv;
+	Name << MutexName;
+
+	void* MutexHandle = OpenMutexA(SYNCHRONIZE, /* InheritHandle */ FALSE, Name.c_str());
+
+	if (MutexHandle == nullptr)
+	{
+		return false;
+	}
+
+	CloseHandle(MutexHandle);
+
+	return true;
+}
+
 Process::Process() = default;
 
 void