From 98884516a132edd0b5ddc919517210d7062c79fa Mon Sep 17 00:00:00 2001
From: belliash <belliash@codingworkshop.eu.org>
Date: Thu, 16 Feb 2023 18:34:46 +0100
Subject: [PATCH] Implement KeInitializeSpinLock() routine

---
 sdk/xtdk/kefuncs.h      |  4 ++++
 xtoskrnl/CMakeLists.txt |  1 +
 xtoskrnl/ke/spinlock.c  | 28 ++++++++++++++++++++++++++++
 3 files changed, 33 insertions(+)
 create mode 100644 xtoskrnl/ke/spinlock.c

diff --git a/sdk/xtdk/kefuncs.h b/sdk/xtdk/kefuncs.h
index 984d141..423fb41 100644
--- a/sdk/xtdk/kefuncs.h
+++ b/sdk/xtdk/kefuncs.h
@@ -16,6 +16,10 @@
 
 
 /* Kernel services routines forward references */
+XTAPI
+VOID
+KeInitializeSpinLock(IN PKSPIN_LOCK SpinLock);
+
 XTAPI
 VOID
 KeInitializeTimer(OUT PKTIMER Timer);
diff --git a/xtoskrnl/CMakeLists.txt b/xtoskrnl/CMakeLists.txt
index 50d3223..53dae36 100644
--- a/xtoskrnl/CMakeLists.txt
+++ b/xtoskrnl/CMakeLists.txt
@@ -18,6 +18,7 @@ list(APPEND XTOSKRNL_SOURCE
     ${XTOSKRNL_SOURCE_DIR}/hl/${ARCH}/ioport.c
     ${XTOSKRNL_SOURCE_DIR}/ke/globals.c
     ${XTOSKRNL_SOURCE_DIR}/ke/krnlinit.c
+    ${XTOSKRNL_SOURCE_DIR}/ke/spinlock.c
     ${XTOSKRNL_SOURCE_DIR}/ke/timer.c
     ${XTOSKRNL_SOURCE_DIR}/ke/${ARCH}/krnlinit.c
     ${XTOSKRNL_SOURCE_DIR}/ke/${ARCH}/proc.c
diff --git a/xtoskrnl/ke/spinlock.c b/xtoskrnl/ke/spinlock.c
new file mode 100644
index 0000000..861597f
--- /dev/null
+++ b/xtoskrnl/ke/spinlock.c
@@ -0,0 +1,28 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtoskrnl/ke/spinlock.c
+ * DESCRIPTION:     Spinlocks support
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtos.h>
+
+
+/**
+ * Initializes a spinlock.
+ *
+ * @param SpinLock
+ *        Supplies a pointer to a kernel spin lock.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since NT 3.5
+ */
+XTAPI
+VOID
+KeInitializeSpinLock(IN PKSPIN_LOCK SpinLock)
+{
+    /* Zero initialize spinlock */
+    *SpinLock = 0;
+}