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utils/shadercompile/subprocess.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+
+#ifndef SUBPROCESS_H
+#define SUBPROCESS_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+class SubProcessKernelObjects
+{
+	friend class SubProcessKernelObjects_Memory;
+
+public:
+	SubProcessKernelObjects( void );
+	~SubProcessKernelObjects( void );
+
+private:
+	SubProcessKernelObjects( SubProcessKernelObjects const & );
+	SubProcessKernelObjects & operator =( SubProcessKernelObjects const & );
+
+protected:
+	BOOL Create( char const *szBaseName );
+	BOOL Open( char const *szBaseName );
+
+public:
+	BOOL IsValid( void ) const;
+	void Close( void );
+
+protected:
+	HANDLE m_hMemorySection;
+	HANDLE m_hMutex;
+	HANDLE m_hEvent[2];
+	DWORD m_dwCookie;
+};
+
+class SubProcessKernelObjects_Create : public SubProcessKernelObjects
+{
+public:
+	SubProcessKernelObjects_Create( char const *szBaseName ) { Create( szBaseName ), m_dwCookie = 1; }
+};
+
+class SubProcessKernelObjects_Open : public SubProcessKernelObjects
+{
+public:
+	SubProcessKernelObjects_Open( char const *szBaseName ) { Open( szBaseName ), m_dwCookie = 0; }
+};
+
+class SubProcessKernelObjects_Memory
+{
+public:
+	SubProcessKernelObjects_Memory( SubProcessKernelObjects *p ) : m_pObjs( p ), m_pLockData( NULL ), m_pMemory( NULL ) {  }
+	~SubProcessKernelObjects_Memory() { Unlock(); }
+
+public:
+	void * Lock( void );
+	BOOL Unlock( void );
+
+public:
+	BOOL IsValid( void ) const { return m_pLockData != NULL; }
+	void * GetMemory( void ) const { return m_pMemory; }
+
+protected:
+	void *m_pMemory;
+
+private:
+	SubProcessKernelObjects *m_pObjs;
+	void *m_pLockData;
+};
+
+
+//
+// Response implementation
+//
+class CSubProcessResponse : public CmdSink::IResponse
+{
+public:
+	explicit CSubProcessResponse( void const *pvMemory );
+	~CSubProcessResponse( void ) { }
+
+public:
+	virtual bool Succeeded( void ) { return ( 1 == m_dwResult ); }
+	virtual size_t GetResultBufferLen( void ) { return ( Succeeded() ? m_dwResultBufferLength : 0 ); }
+	virtual const void * GetResultBuffer( void ) { return ( Succeeded() ? m_pvResultBuffer : NULL ); }
+	virtual const char * GetListing( void ) { return (const char *) ( ( m_szListing && * m_szListing ) ? m_szListing : NULL ); }
+
+protected:
+	void const *m_pvMemory;
+	DWORD m_dwResult;
+	DWORD m_dwResultBufferLength;
+	void const *m_pvResultBuffer;
+	char const *m_szListing;
+};
+
+
+int ShaderCompile_Subprocess_Main( char const *szSubProcessData );
+
+
+#endif // #ifndef SUBPROCESS_H