1 files changed, 93 insertions, 0 deletions
diff --git a/src/engine/shared/kernel.cpp b/src/engine/shared/kernel.cpp
new file mode 100644
index 00000000..9f6850ba
--- /dev/null
+++ b/src/engine/shared/kernel.cpp
@@ -0,0 +1,93 @@
+#include <base/system.h>
+#include <engine/kernel.h>
+
+class CKernel : public IKernel
+{
+	enum
+	{
+		MAX_INTERFACES=32,
+	};
+	
+	class CInterfaceInfo
+	{
+	public:
+		CInterfaceInfo()
+		{
+			m_aName[0] = 0;
+			m_pInterface = 0x0;
+		}
+		
+		char m_aName[64];
+		IInterface *m_pInterface;
+	};
+
+	CInterfaceInfo m_aInterfaces[MAX_INTERFACES];
+	int m_NumInterfaces;
+	
+	CInterfaceInfo *FindInterfaceInfo(const char *pName)
+	{
+		for(int i = 0; i < m_NumInterfaces; i++)
+		{
+			if(str_comp(pName, m_aInterfaces[i].m_aName) == 0)
+				return &m_aInterfaces[i];
+		}
+		return 0x0;
+	}
+	
+public:
+
+	CKernel()
+	{
+		m_NumInterfaces = 0;
+	}
+
+
+	virtual bool RegisterInterfaceImpl(const char *pName, IInterface *pInterface)
+	{
+		// TODO: More error checks here
+		if(m_NumInterfaces == MAX_INTERFACES)
+		{
+			dbg_msg("kernel", "ERROR: couldn't register interface '%s'. maximum of interfaces reached", pName);
+			return false;
+		}
+			
+		if(FindInterfaceInfo(pName) != 0)
+		{
+			dbg_msg("kernel", "ERROR: couldn't register interface '%s'. interface already exists");
+			return false;
+		}
+		
+		pInterface->m_pKernel = this;
+		m_aInterfaces[m_NumInterfaces].m_pInterface = pInterface;
+		str_copy(m_aInterfaces[m_NumInterfaces].m_aName, pName, sizeof(m_aInterfaces[m_NumInterfaces].m_aName));
+		m_NumInterfaces++;
+		
+		return true;
+	}
+
+	virtual bool ReregisterInterfaceImpl(const char *pName, IInterface *pInterface)
+	{
+		if(FindInterfaceInfo(pName) == 0)
+		{
+			dbg_msg("kernel", "ERROR: couldn't reregister interface '%s'. interface doesn't exist");
+			return false;
+		}
+		
+		pInterface->m_pKernel = this;
+		
+		return true;
+	}
+	
+	virtual IInterface *RequestInterfaceImpl(const char *pName)
+	{
+		CInterfaceInfo *pInfo = FindInterfaceInfo(pName);
+		if(!pInfo)
+		{
+			dbg_msg("kernel", "failed to find interface with the name '%s'", pName);
+			return 0;
+		}
+		return pInfo->m_pInterface;
+	}
+};
+
+IKernel *IKernel::Create() { return new CKernel; }