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90 lines
2.5 KiB
90 lines
2.5 KiB
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1997, Microsoft Corp. All rights reserved.
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//
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// FILE
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//
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// InfoShare.h
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//
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// SYNOPSIS
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//
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// This file describes the class InfoShare.
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//
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// MODIFICATION HISTORY
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//
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// 09/09/1997 Original version.
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// 03/17/1998 Added clear() method.
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// 06/01/1998 Added default constructor.
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// 09/09/1998 Protect client changes with a shared Mutex.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _INFOSHARE_H_
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#define _INFOSHARE_H_
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#include <iasinfo.h>
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#include <guard.h>
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#include <nocopy.h>
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#include <map>
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///////////////////////////////////////////////////////////////////////////////
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//
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// CLASS
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//
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// InfoShare
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//
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// DESCRIPTION
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//
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// This class manages the shared memory used for exposing server
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// statistics to the outside world.
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//
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///////////////////////////////////////////////////////////////////////////////
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class InfoShare
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: NonCopyable
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{
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public:
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InfoShare() throw ();
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~InfoShare() throw ();
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// Returns the RadiusClientEntry struct for the given address.
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RadiusClientEntry* findClientEntry(PCWSTR inetAddress) throw ();
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// Returns the RadiusServerEntry struct.
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RadiusServerEntry* getServerEntry() const throw ()
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{ return info ? &(info->seServer) : NULL; }
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// Sets the server reset time.
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void onReset() throw ();
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bool initialize() throw ();
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void finalize() throw ();
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protected:
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// Functions to serialize access to the shared memory.
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void Lock() throw ()
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{ WaitForSingleObject(monitor, INFINITE); }
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void Unlock() throw ()
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{ ReleaseMutex(monitor); }
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friend class Guard<InfoShare>;
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// Create a new client entry in shared memory.
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RadiusClientEntry* addClientEntry(DWORD address) throw ();
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// Clear the data structure.
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void clear() throw ();
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// Map addresses to RadiusClientEntry's.
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typedef std::map< DWORD, RadiusClientEntry* > ClientMap;
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ClientMap clients; // Index of client entries.
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HANDLE monitor; // Handle of the mutex.
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DWORD pageSize; // Size of a page (in bytes).
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DWORD committed; // Number of pages committed.
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DWORD reserved; // Number of pages reserved.
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HANDLE fileMap; // Handle of the file mapping.
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RadiusStatistics* info; // Pointer to shared struct.
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};
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#endif // _INFOSHARE_H_
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