Merge pull request #2839 from Subv/global_kernel_lock

Kernel/HLE: Use a mutex  to synchronize access to the HLE kernel state between the cpu thread and any other possible threads that might touch the kernel (network thread, etc).

1 files changed, 18 insertions, 0 deletions

diff --git a/src/core/hle/lock.h b/src/core/hle/lock.h
new file mode 100644
index 000000000..8265621e1
--- /dev/null
+++ b/src/core/hle/lock.h
@@ -0,0 +1,18 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <mutex>
+
+namespace HLE {
+/*
+ * Synchronizes access to the internal HLE kernel structures, it is acquired when a guest
+ * application thread performs a syscall. It should be acquired by any host threads that read or
+ * modify the HLE kernel state. Note: Any operation that directly or indirectly reads from or writes
+ * to the emulated memory is not protected by this mutex, and should be avoided in any threads other
+ * than the CPU thread.
+ */
+extern std::mutex g_hle_lock;
+} // namespace HLE