1 files changed, 48 insertions, 0 deletions
diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h
new file mode 100644
index 000000000..5312b8854
--- /dev/null
+++ b/src/core/hle/kernel/shared_memory.h
@@ -0,0 +1,48 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#pragma once
+
+#include "common/common_types.h"
+
+#include "core/hle/kernel/kernel.h"
+
+namespace Kernel {
+
+/// Permissions for mapped shared memory blocks
+enum class MemoryPermission : u32 {
+    None        = 0,
+    Read        = (1u <<  0),
+    Write       = (1u <<  1),
+    ReadWrite   = (Read | Write),
+    DontCare    = (1u << 28)
+};
+
+/**
+ * Creates a shared memory object
+ * @param name Optional name of shared memory object
+ * @return Handle of newly created shared memory object
+ */
+Handle CreateSharedMemory(const std::string& name="Unknown");
+
+/**
+ * Maps a shared memory block to an address in system memory
+ * @param handle Shared memory block handle
+ * @param address Address in system memory to map shared memory block to
+ * @param permissions Memory block map permissions (specified by SVC field)
+ * @param other_permissions Memory block map other permissions (specified by SVC field)
+ * @return Result of operation, 0 on success, otherwise error code
+ */
+Result MapSharedMemory(u32 handle, u32 address, MemoryPermission permissions, 
+    MemoryPermission other_permissions);
+
+/**
+ * Gets a pointer to the shared memory block
+ * @param handle Shared memory block handle
+ * @param offset Offset from the start of the shared memory block to get pointer
+ * @return Pointer to the shared memory block from the specified offset
+ */
+u8* GetSharedMemoryPointer(Handle handle, u32 offset);
+
+} // namespace