1 files changed, 53 insertions, 0 deletions
diff --git a/Kernel/Source/Semaphore.cxx b/Kernel/Source/Semaphore.cxx
new file mode 100644
index 00000000..eebdd210
--- /dev/null
+++ b/Kernel/Source/Semaphore.cxx
@@ -0,0 +1,53 @@
+/* -------------------------------------------
+
+    Copyright SoftwareLabs
+
+------------------------------------------- */
+
+#include <KernelKit/ProcessScheduler.hpp>
+#include <KernelKit/Semaphore.hpp>
+#include <KernelKit/Timer.hpp>
+
+namespace NewOS
+{
+	bool Semaphore::Unlock() noexcept
+	{
+		if (fLockingProcess)
+			fLockingProcess = nullptr;
+
+		return fLockingProcess == nullptr;
+	}
+
+	bool Semaphore::Lock(ProcessHeader* process)
+	{
+		if (!process || fLockingProcess)
+			return false;
+
+		fLockingProcess = process;
+
+		return true;
+	}
+
+	bool Semaphore::IsLocked() const
+	{
+		return fLockingProcess;
+	}
+
+	bool Semaphore::LockOrWait(ProcessHeader* process, const Int64& seconds)
+	{
+		if (process == nullptr)
+			return false;
+
+		HardwareTimer timer(Seconds(seconds));
+		timer.Wait();
+
+		return this->Lock(process);
+	}
+
+	void Semaphore::Sync() noexcept
+	{
+		while (fLockingProcess)
+		{
+		}
+	}
+} // namespace NewOS