From eee98966f4a852e192bedcde580558bc69176ee8 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Thu, 19 May 2016 21:17:17 -0700
Subject: [PATCH] Add Memory utility to detect shutdown.

---
 Core/MemMap.cpp | 13 +++++++------
 Core/MemMap.h   |  2 ++
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/Core/MemMap.cpp b/Core/MemMap.cpp
index e13d7275c..d01fb17df 100644
--- a/Core/MemMap.cpp
+++ b/Core/MemMap.cpp
@@ -383,18 +383,15 @@ void DoState(PointerWrap &p)
 	p.DoMarker("ScratchPad");
 }
 
-void Shutdown()
-{
+void Shutdown() {
 	lock_guard guard(g_shutdownLock);
 	u32 flags = 0;
-
 	MemoryMap_Shutdown(flags);
-	base = NULL;
+	base = nullptr;
 	DEBUG_LOG(MEMMAP, "Memory system shut down.");
 }
 
-void Clear()
-{
+void Clear() {
 	if (m_pRAM)
 		memset(GetPointerUnchecked(PSP_GetKernelMemoryBase()), 0, g_MemorySize);
 	if (m_pScratchPad)
@@ -403,6 +400,10 @@ void Clear()
 		memset(m_pVRAM, 0, VRAM_SIZE);
 }
 
+bool IsActive() {
+	return base != nullptr;
+}
+
 // Wanting to avoid include pollution, MemMap.h is included a lot.
 MemoryInitedLock::MemoryInitedLock()
 {
diff --git a/Core/MemMap.h b/Core/MemMap.h
index c2b4ad3b1..b397781c3 100644
--- a/Core/MemMap.h
+++ b/Core/MemMap.h
@@ -130,6 +130,8 @@ void Init();
 void Shutdown();
 void DoState(PointerWrap &p);
 void Clear();
+// False when shutdown has already been called.
+bool IsActive();
 
 class MemoryInitedLock
 {