client.h   [plain text]

/*
 * $Header$
 *
 * Copyright 2008 Massachusetts Institute of Technology.
 * All Rights Reserved.
 *
 * Export of this software from the United States of America may
 * require a specific license from the United States Government.
 * It is the responsibility of any person or organization contemplating
 * export to obtain such a license before exporting.
 *
 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
 * distribute this software and its documentation for any purpose and
 * without fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both that copyright notice and
 * this permission notice appear in supporting documentation, and that
 * the name of M.I.T. not be used in advertising or publicity pertaining
 * to distribution of the software without specific, written prior
 * permission.  Furthermore if you modify this software you must label
 * your software as modified software and not distribute it in such a
 * fashion that it might be confused with the original M.I.T. software.
 * M.I.T. makes no representations about the suitability of
 * this software for any purpose.  It is provided "as is" without express
 * or implied warranty.
 */

#ifndef __DLL_CLIENT_H__
#define __DLL_CLIENT_H__

#include "autolock.hxx"
#include "init.hxx"

class Client {
public:
    static DWORD Initialize(char* ep OPTIONAL);
    static DWORD Cleanup();
    static DWORD Reconnect(char* ep OPTIONAL);

    static bool Initialized() { return s_init; }

    static CcOsLock sLock;

private:
    static bool s_init;

    static DWORD Disconnect();
    static DWORD Connect(char* ep OPTIONAL);
    };

#define CLIENT_INIT_EX(trap, error) \
do \
{ \
    INIT_INIT_EX(trap, error); \
    if (!Client::Initialized()) \
    { \
        DWORD status = Client::Initialize(0); \
        if (status) return (trap) ? (error) : status; \
    } \
} while(0)

#endif