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| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /sp/src/public/tier1/tier1.h | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'sp/src/public/tier1/tier1.h')
| -rw-r--r-- | sp/src/public/tier1/tier1.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/sp/src/public/tier1/tier1.h b/sp/src/public/tier1/tier1.h new file mode 100644 index 00000000..7e48c3c3 --- /dev/null +++ b/sp/src/public/tier1/tier1.h @@ -0,0 +1,106 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: A higher level link library for general use in the game and tools.
+//
+//===========================================================================//
+
+
+#ifndef TIER1_H
+#define TIER1_H
+
+#if defined( _WIN32 )
+#pragma once
+#endif
+
+#include "appframework/IAppSystem.h"
+#include "tier1/convar.h"
+
+
+//-----------------------------------------------------------------------------
+// Forward declarations
+//-----------------------------------------------------------------------------
+class ICvar;
+class IProcessUtils;
+
+
+//-----------------------------------------------------------------------------
+// These tier1 libraries must be set by any users of this library.
+// They can be set by calling ConnectTier1Libraries.
+// It is hoped that setting this, and using this library will be the common mechanism for
+// allowing link libraries to access tier1 library interfaces
+//-----------------------------------------------------------------------------
+
+// These are marked DLL_EXPORT for Linux.
+DLL_EXPORT ICvar *cvar;
+extern ICvar *g_pCVar;
+extern IProcessUtils *g_pProcessUtils;
+
+
+//-----------------------------------------------------------------------------
+// Call this to connect to/disconnect from all tier 1 libraries.
+// It's up to the caller to check the globals it cares about to see if ones are missing
+//-----------------------------------------------------------------------------
+void ConnectTier1Libraries( CreateInterfaceFn *pFactoryList, int nFactoryCount );
+void DisconnectTier1Libraries();
+
+
+//-----------------------------------------------------------------------------
+// Helper empty implementation of an IAppSystem for tier2 libraries
+//-----------------------------------------------------------------------------
+template< class IInterface, int ConVarFlag = 0 >
+class CTier1AppSystem : public CTier0AppSystem< IInterface >
+{
+ typedef CTier0AppSystem< IInterface > BaseClass;
+
+public:
+ CTier1AppSystem( bool bIsPrimaryAppSystem = true ) : BaseClass( bIsPrimaryAppSystem )
+ {
+ }
+
+ virtual bool Connect( CreateInterfaceFn factory )
+ {
+ if ( !BaseClass::Connect( factory ) )
+ return false;
+
+ if ( BaseClass::IsPrimaryAppSystem() )
+ {
+ ConnectTier1Libraries( &factory, 1 );
+ }
+ return true;
+ }
+
+ virtual void Disconnect()
+ {
+ if ( BaseClass::IsPrimaryAppSystem() )
+ {
+ DisconnectTier1Libraries();
+ }
+ BaseClass::Disconnect();
+ }
+
+ virtual InitReturnVal_t Init()
+ {
+ InitReturnVal_t nRetVal = BaseClass::Init();
+ if ( nRetVal != INIT_OK )
+ return nRetVal;
+
+ if ( g_pCVar && BaseClass::IsPrimaryAppSystem() )
+ {
+ ConVar_Register( ConVarFlag );
+ }
+ return INIT_OK;
+ }
+
+ virtual void Shutdown()
+ {
+ if ( g_pCVar && BaseClass::IsPrimaryAppSystem() )
+ {
+ ConVar_Unregister( );
+ }
+ BaseClass::Shutdown( );
+ }
+};
+
+
+#endif // TIER1_H
+
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