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include/session.h

Go to the documentation of this file.

/**********************************************************************
 * Copyright 2002 Jeff Rush <jrush@taupro.com>
 * Original Copyright 1979-2002 Udanax.com
 *
 * This file is part of the Udanax xanalogical storage system.
 *
 * Udanax is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Udanax is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Udanax; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 **********************************************************************/

/* Modification History:
 * $Log: session.h,v $
 * Revision 1.9  2002/05/28 03:51:13  jrush
 * Updated sources to comply with a GPL licensing.
 *
 * Revision 1.8  2002/04/12 11:46:25  jrush
 * Major rearrangement of include contents, to reflect a hopefully more
 * logical layout as we refactor Udanax into classes.
 *
 * Revision 1.7  2002/04/10 18:01:54  jrush
 * Renamed class typeisa to IStreamAddr.
 *
 * Revision 1.6  2002/04/09 21:45:46  jrush
 * Renamed class 'tumbler' to 'Tumbler', for consistency with Python sources,
 * and changed typeisa from typedef to a subclass, in preparation for cleaning
 * up the type/class tree.
 *
 * Revision 1.5  2002/04/07 14:02:55  jrush
 * Added errorcode and reason enums to Session object, so that more than a
 * pass/fail indicator for Udanax API calls can be passed back to the client
 * program.
 *
 * Revision 1.4  2002/04/06 20:42:50  jrush
 * Switch from sess->alloc() style to new(sess) Object parameterized allocator.
 *
 * Revision 1.3  2002/04/06 17:05:57  jrush
 * Switched from referring to 'task' for a client connection to 'session',
 * and converted the typetask typedef/struct into a Session C++ class.
 *
 * Revision 1.6  2002/04/06 15:22:53  jrush
 * Broke out tumbler struct/typedef as a C++ class.
 *
 * Revision 1.5  2002/04/06 15:00:34  jrush
 * Changed INT to just 'int'.
 *
 * Revision 1.4  2002/02/14 05:40:42  jrush
 * Cleaned up source:
 *
 * 1. ran thru the indent tool to achieve a standard look,
 * 2. added structured comments at top for use with DOxygen reporting
 *    as well as CVS keywords,
 * 3. added #ifndef/#defines to prevent duplicate inclusions,
 * 4. insured all struct/union defs have names,
 * 5. centralized prototypes in protos.h, removing incomplete ones,
 * 6. cleaned up use of bool/BOOLEAN type to suit C++ type,
 * 7. fixed initializer nesting in tumbler constants.
 *
 */

#ifndef __UDANAX_SESSION_H__
#define __UDANAX_SESSION_H__

#include <stdio.h>

union typeitem;
typedef typeitem *typeitemset;

enum ErrorCode {
    ERR_CLOSE_WO_OPEN = 1,  // Attempted close of a document that was never opened
    ERR_OPEN_COPY     = 2,  // Attempt to make a copy to open failed
};

class Session {
public:
    struct typetthingheader { // Private Structure
        typetthingheader *tlast;
        typetthingheader *tnext;
    };
public:
    Session();
    bool getaccount(IStreamAddr *accountptr);
    void free();
    void freeexplicit(char *ptr);
    void freeitemset(typeitemset itemset);

    FILE              *inp;
    FILE              *outp;
    FILE              *errp;
    typetthingheader  *tempspacehead;    /* doubly linked talloc space so */
    typetthingheader  *tempspacetail;    /* that single items can be freed */
    IStreamAddr        account;
    bool               charinbuff;
    char               charbuff;
    ErrorCode          errorcode;

private:
    friend void *operator new(size_t nbytes, Session *sess);
    int *alloc(int nbytes);
};

#endif /* !__UDANAX_SESSION_H__*/

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