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public/tier0/systeminformation.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+
+#ifndef SYSTEMINFORMATION_H
+#define SYSTEMINFORMATION_H
+
+#ifdef _WIN32
+	#pragma once
+#endif
+
+#ifndef PLATFORM_INTERFACE
+	#define PLATFORM_INTERFACE
+#endif
+
+//
+//	Defines a possible outcome of a system call
+//
+enum SYSTEM_CALL_RESULT_t
+{
+	SYSCALL_SUCCESS		= 0,	// System call succeeded
+	SYSCALL_FAILED		= 1,	// System call failed
+	SYSCALL_NOPROC		= 2,	// Failed to find required system procedure
+	SYSCALL_NODLL		= 3,	// Failed to find or load required system module
+	SYSCALL_UNSUPPORTED	= 4,	// System call unsupported on the OS
+};
+
+
+//
+//	Information about paged pool memory
+//
+struct PAGED_POOL_INFO_t
+{
+	unsigned long numPagesUsed;		// Number of Paged Pool pages used
+	unsigned long numPagesFree;		// Number of Paged Pool pages free
+};
+
+//
+//	Plat_GetMemPageSize
+//		Returns the size of a memory page in kilobytes.
+//
+PLATFORM_INTERFACE unsigned long Plat_GetMemPageSize();
+
+//
+//	Plat_GetPagedPoolInfo
+//		Fills in the paged pool info structure if successful.
+//
+PLATFORM_INTERFACE SYSTEM_CALL_RESULT_t Plat_GetPagedPoolInfo( PAGED_POOL_INFO_t *pPPI );
+
+
+
+#endif // #ifndef SYSTEMINFORMATION_H