From 25a937916bd5bafbbd2c66a107528bc2a2539cb7 Mon Sep 17 00:00:00 2001
From: Dibyamartanda Samanta <dibyaxp@noreply.codingworkshop.git>
Date: Tue, 21 May 2024 14:31:59 +0200
Subject: [PATCH] Add NTOSKRNL/CC/ccinternal.hpp

---
 NTOSKRNL/CC/ccinternal.hpp | 51 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 NTOSKRNL/CC/ccinternal.hpp

diff --git a/NTOSKRNL/CC/ccinternal.hpp b/NTOSKRNL/CC/ccinternal.hpp
new file mode 100644
index 0000000..9c246ba
--- /dev/null
+++ b/NTOSKRNL/CC/ccinternal.hpp
@@ -0,0 +1,51 @@
+/*
+ * PROJECT: Alcyone System Kernel
+ * LICENSE: BSD Clause 3
+ * PURPOSE: Cache Controller:: Lazy Writer
+ * NT KERNEL: 5.11.9360
+ * COPYRIGHT:  2023-2029 Dibymartanda Samanta <>
+ */
+
+#include "debug.hpp"
+#include <ntoskrnl.hpp>
+
+
+BOOL
+NTAPI
+IsGoToNextMap(IN PSHARED_CACHE_MAP SharedMap, IN ULONG TargetPages)
+{
+    BOOLEAN Skip = FALSE;
+
+    if (SharedMap->Flags & (0x20 | 0x800))
+        return TRUE;
+
+    if ((SharedMap->OpenCount || SharedMap->DirtyPages) && SharedMap->FileSize.QuadPart)
+    {
+        Skip = TRUE;
+    }
+
+    if (!SharedMap->DirtyPages && Skip)
+        return TRUE;
+
+    if (SharedMap->Flags & SHARE_FL_WAITING_TEARDOWN)
+        return FALSE;
+
+    if (!TargetPages && Skip)
+        return TRUE;
+
+    SharedMap->LazyWritePassCount++;
+
+    if ((SharedMap->LazyWritePassCount & 0xF) && (SharedMap->Flags & SHARE_FL_MODIFIED_NO_WRITE) &&
+        CcCapturedSystemSize != MmSmallSystem && SharedMap->DirtyPages < 0x40 && Skip)
+    {
+        return TRUE;
+    }
+
+    if ((SharedMap->FileObject->Flags & 0x8000) && SharedMap->OpenCount &&
+        CcCanIWrite(SharedMap->FileObject, 0x40000, 0, 0xFF) && Skip)
+    {
+        return TRUE;
+    }
+
+    return FALSE;
+}
\ No newline at end of file