vulkan: use a marl::Event in the VkSemaphore implementation.

src/Vulkan/VkSemaphore.cpp

@@ -93,7 +93,7 @@ void Semaphore::wait()
 	}
 	else
 	{
-		waitInternal();
+		internal.wait();
 	}
 }
 
@@ -107,26 +107,7 @@ void Semaphore::signal()
 	}
 	else
 	{
-		signalInternal();
-	}
-}
-
-void Semaphore::waitInternal()
-{
-	// Wait on the marl condition variable only.
-	std::unique_lock<std::mutex> lock(mutex);
-	condition.wait(lock, [this] { return this->signaled; });
-	signaled = false;  // Vulkan requires resetting after waiting.
-}
-
-void Semaphore::signalInternal()
-{
-	// Signal the marl condition variable only.
-	std::unique_lock<std::mutex> lock(mutex);
-	if(!signaled)
-	{
-		signaled = true;
-		condition.notify_one();
+		internal.signal();
 	}
 }
 

src/Vulkan/VkSemaphore.hpp

@@ -18,7 +18,7 @@
 #include "VkConfig.h"
 #include "VkObject.hpp"
 
-#include "marl/conditionvariable.h"
+#include "marl/event.h"
 #include <mutex>
 
 #if VK_USE_PLATFORM_FUCHSIA
@@ -58,17 +58,12 @@ public:
 	class External;
 
 private:
-	void waitInternal();
-	void signalInternal();
-
 	void allocateExternal();
 	void deallocateExternal();
 
 	const VkAllocationCallbacks *allocator = nullptr;
+	marl::Event internal;
 	std::mutex mutex;
-	marl::ConditionVariable condition;
-	bool signaled = false;
-
 	External *external = nullptr;
 	bool temporaryImport = false;
 };