From c142fe6fda7d09e929c9706b444cdc13ed5e72f3 Mon Sep 17 00:00:00 2001
From: Amlal EL Mahrouss <amlalelmahrouss@icloud.com>
Date: Fri, 28 Jun 2024 08:26:19 +0200
Subject: IMP: Feature Pack #1

- Process scheduler.
- System calls.
- ACPI support.
- Driver kit.
- Filesystem support.
- Program loader.
- newstd/herror APIs.

Signed-off-by: Amlal EL Mahrouss <amlalelmahrouss@icloud.com>
---
 Kernel/Sources/KernelHeap.cxx       |  1 +
 Kernel/Sources/ProcessScheduler.cxx | 13 ++++++++++---
 Kernel/Sources/Semaphore.cxx        | 19 ++++++++++++++-----
 3 files changed, 25 insertions(+), 8 deletions(-)

(limited to 'Kernel/Sources')

diff --git a/Kernel/Sources/KernelHeap.cxx b/Kernel/Sources/KernelHeap.cxx
index c3e8e86b..875e00fb 100644
--- a/Kernel/Sources/KernelHeap.cxx
+++ b/Kernel/Sources/KernelHeap.cxx
@@ -185,6 +185,7 @@ namespace NewOS
 			{
 				virtualAddress->fCRC32 =
 					ke_calculate_crc32((Char*)virtualAddress->fTargetPtr, virtualAddress->fTargetPtrSize);
+
 				return true;
 			}
 		}
diff --git a/Kernel/Sources/ProcessScheduler.cxx b/Kernel/Sources/ProcessScheduler.cxx
index 315dc07a..ca9a3435 100644
--- a/Kernel/Sources/ProcessScheduler.cxx
+++ b/Kernel/Sources/ProcessScheduler.cxx
@@ -27,13 +27,19 @@ namespace NewOS
 	/// @brief Exit Code global
 	/***********************************************************************************/
 
-	STATIC Int32 kLastExitCode = 0U;
+	STATIC Int32 cLastExitCode = 0U;
 
 	/// @brief Gets the latest exit code.
 	/// @note Not thread-safe.
+	/// @return Int32 the last exit code.
+	const Int32& ProcessHeader::GetExitCode() noexcept
+	{
+		return fLastExitCode;
+	}
+
 	const Int32& rt_get_exit_code() noexcept
 	{
-		return kLastExitCode;
+		return cLastExitCode;
 	}
 
 	/***********************************************************************************/
@@ -164,7 +170,8 @@ namespace NewOS
 			ProcessScheduler::The().Leak().TheCurrent().Leak().ProcessId)
 			ke_stop(RUNTIME_CHECK_PROCESS);
 
-		kLastExitCode = exit_code;
+		fLastExitCode = exit_code;
+		cLastExitCode = exit_code;
 
 		//! Delete image if not done already.
 		if (this->Image)
diff --git a/Kernel/Sources/Semaphore.cxx b/Kernel/Sources/Semaphore.cxx
index d52cf447..45fccbca 100644
--- a/Kernel/Sources/Semaphore.cxx
+++ b/Kernel/Sources/Semaphore.cxx
@@ -6,7 +6,6 @@
 
 #include <KernelKit/ProcessScheduler.hxx>
 #include <KernelKit/Semaphore.hpp>
-#include <KernelKit/Timer.hpp>
 
 namespace NewOS
 {
@@ -33,21 +32,31 @@ namespace NewOS
 		return fLockingProcess;
 	}
 
-	bool Semaphore::LockOrWait(ProcessHeader* process, const Int64& seconds)
+	bool Semaphore::LockOrWait(ProcessHeader* process, HardwareTimerInterface* timer)
 	{
 		if (process == nullptr)
 			return false;
 
-		HardwareTimer timer(Seconds(seconds));
-		timer.Wait();
+		if (timer == nullptr)
+			return false;
+
+		this->Lock(process);
+
+		timer->Wait();
 
 		return this->Lock(process);
 	}
 
-	void Semaphore::Sync() noexcept
+	/// @brief Wait with process, either wait for process being invalid, or not being run.
+	Void Semaphore::WaitForProcess() noexcept
 	{
 		while (fLockingProcess)
 		{
+			if (fLockingProcess->GetStatus() != ProcessStatus::kRunning)
+			{
+				this->Unlock();
+				break;
+			}
 		}
 	}
 } // namespace NewOS
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