355 lines
9.8 KiB
C
355 lines
9.8 KiB
C
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// This may look like C code, but it is really -*- C++ -*-
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// ------------------------------------------------------------------
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// The Goldware Library
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// Copyright (C) 1990-1999 Odinn Sorensen
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// Copyright (C) 1999-2000 Alexander S. Aganichev
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// ------------------------------------------------------------------
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307, USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// Squish msgbase.
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// ------------------------------------------------------------------
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// ------------------------------------------------------------------
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// Only include once!
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#ifndef __GMSQSH_H
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#define __GMSQSH_H
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// ------------------------------------------------------------------
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#include <gmoarea.h>
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#include <limits.h>
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#include <gusrmax.h>
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// ------------------------------------------------------------------
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#if defined(GOLD_CANPACK)
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#pragma pack(1)
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#endif
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// ------------------------------------------------------------------
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#ifdef GOLD_16BIT
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const long MAX_IDXBUFSIZE = 65300L;
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#else
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const long MAX_IDXBUFSIZE = LONG_MAX;
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#endif
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// ------------------------------------------------------------------
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#define MSGAREA_NORMAL 0x00
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#define MSGAREA_CREATE 0x01
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#define MSGAREA_CRIFNEC 0x02
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// ------------------------------------------------------------------
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#define MSGTYPE_SDM 0x01
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#define MSGTYPE_SQUISH 0x02
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#define MSGTYPE_ECHO 0x80
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// ------------------------------------------------------------------
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#define MSGNUM_CUR ((dword)-1L)
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#define MSGNUM_PREV ((dword)-2L)
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#define MSGNUM_NEXT ((dword)-3L)
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// ------------------------------------------------------------------
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#define MOPEN_CREATE 0
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#define MOPEN_READ 1
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#define MOPEN_WRITE 2
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#define MOPEN_RW 3
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// ------------------------------------------------------------------
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#define SQEXTRA_BUF 16
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// ------------------------------------------------------------------
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// Constants for 'type' argument of SquishUidToMsgn()
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const int UID_EXACT = 0;
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const int UID_NEXT = 1;
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const int UID_PREV = 2;
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// ------------------------------------------------------------------
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// Values for msgapierr
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#define MERR_NONE 0 // No error
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#define MERR_BADH 1 // Invalid handle passed to function
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#define MERR_BADF 2 // Invalid or corrupted file
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#define MERR_NOMEM 3 // Not enough memory for specified operation
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#define MERR_NODS 4 // Maybe not enough disk space for operation
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#define MERR_NOENT 5 // File/message does not exist
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#define MERR_BADA 6 // Bad argument passed to msgapi function
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#define MERR_EOPEN 7 // Couldn't close - messages still open
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#define MERR_ACCESS 10 // Access denied - msgbase locked?
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// ------------------------------------------------------------------
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// Bitmasks for 'attr'
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#define MSGPRIVATE 0x0001
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#define MSGCRASH 0x0002
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#define MSGREAD 0x0004
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#define MSGSENT 0x0008
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#define MSGFILE 0x0010
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#define MSGFWD 0x0020
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#define MSGORPHAN 0x0040
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#define MSGKILL 0x0080
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#define MSGLOCAL 0x0100
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#define MSGHOLD 0x0200
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#define MSGXX2 0x0400
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#define MSGFRQ 0x0800
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#define MSGRRQ 0x1000
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#define MSGCPT 0x2000
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#define MSGARQ 0x4000
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#define MSGURQ 0x8000
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#define MSGSCANNED 0x00010000L
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#define MSGUID 0x00020000L
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#define MSGPRINTED 0x00040000L
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#define MSGSEEN 0x00080000L
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#define MSGLOK 0x40000000L
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// ------------------------------------------------------------------
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// Max number of stored replies to one msg
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#define MAX_REPLY 9
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// ------------------------------------------------------------------
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// Structure of message headers in .SQD
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struct SqshHdr {
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dword attr;
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char from[36];
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char to[36];
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char subj[72];
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Addr orig;
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Addr dest;
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FTime date_written; // When user wrote the msg (UTC)
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FTime date_arrived; // When msg arrived on-line (UTC)
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short utc_offset; // Offset from UTC of message writer, in minutes.
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dword replyto;
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dword replies[MAX_REPLY];
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dword umsgid;
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char ftsc_date[20];
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};
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// ------------------------------------------------------------------
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// Squish frames
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const dword SQFRAMEID = 0xAFAE4453L;
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const dword SQFRAME_NULL = 0;
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const word SQFRAME_NORMAL = 0;
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const word SQFRAME_FREE = 1;
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// ------------------------------------------------------------------
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// Structure of message frames in .SQD
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struct SqshFrm {
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dword id; // Must always equal SQFRAMEID
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long next; // Offset of next frame
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long prev; // Offset of previous frame
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dword length; // Length of this frame
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dword totsize; // Length of data in frame (hdr+ctl+txt)
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dword ctlsize; // Length of control info
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word type; // Frm type (normal or free)
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word reserved; // Reserved
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};
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// ------------------------------------------------------------------
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// Structure of index file .SQI
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struct SqshIdx {
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long offset; // Offset of frame in .SQD
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dword msgno; // Message number
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dword hash; // Hash value of TO: name
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};
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// ------------------------------------------------------------------
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// Structure of base record in .SQD
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struct SqshBase {
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word size; // sizeof(SqshBaseT)
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word reserved1; // reserved
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dword totalmsgs; // Number of messages in area
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dword highestmsg; // Highest msg in area. Same as totalmsgs
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dword protmsgs; // Skip killing first x msgs in area
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dword highwatermark; // Relno (not Tagno) of HWM
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dword nextmsgno; // Next message number to use
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char name[80]; // Base name of SquishFile
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dword firstframe; // Offset of first frame in file
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dword lastframe; // Offset to last frame in file
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dword firstfreeframe; // Offset of first FREE frame in file
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dword lastfreeframe; // Offset of last free frame in file
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dword endframe; // Pointer to end of file
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dword maxmsgs; // Max # of msgs to keep in area
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word daystokeep; // Max age of msgs in area (for packing util)
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word framesize; // sizeof(SqshFrmT)
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byte reserved2[124]; // Reserved by Squish for future use
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};
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// ------------------------------------------------------------------
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#if defined(GOLD_CANPACK)
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#pragma pack()
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#endif
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// ------------------------------------------------------------------
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struct SqshData {
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int fhsqd;
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int fhsqi;
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SqshBase base;
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SqshIdx* idx;
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int softlock;
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int islocked;
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};
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// ------------------------------------------------------------------
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struct SqshWide {
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int userno;
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MaximusUser* user;
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const char* userpath;
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int direct;
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int recycle;
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int squishscan;
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};
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// ------------------------------------------------------------------
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class SquishArea : public gmo_area {
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protected:
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SqshWide* wide;
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SqshData* data;
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void data_open();
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void data_close();
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int test_open(const char* __file);
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void save_lastread();
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void raw_scan(int __keep_index, int __scanpm=false);
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void raw_open();
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void raw_close();
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void refresh();
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int load_message(int __mode, gmsg* __msg, SqshHdr& __hdr);
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void read_frm(dword __offset, SqshFrm* __frm);
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void write_frm(dword __offset, SqshFrm* __frm);
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void upd_frm_next(dword __offset, SqshFrm* __frm, dword __next);
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void upd_frm_prev(dword __offset, SqshFrm* __frm, dword __prev);
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void add_to_free_chain(dword __delframe, SqshFrm* __delfrm);
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void delete_msg(uint __reln);
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void init_frm(SqshFrm* __frm);
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void excess_frm(dword __lastframe, dword __newframe, SqshFrm* __newfrm, dword __totsize);
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uint find_msgn(ulong __tagn);
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void save_message(int __mode, gmsg* __msg);
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public:
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SquishArea() { wide = NULL; data = NULL; }
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virtual ~SquishArea() {}
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// ----------------------------------------------------------------
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// Messagebase member functions
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void open();
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void close();
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void suspend();
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void resume();
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void lock();
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void unlock();
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void scan();
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void scan_area();
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void scan_area_pm();
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int load_hdr(gmsg* msg);
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int load_msg(gmsg* msg);
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void save_hdr(int mode, gmsg* msg);
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void save_msg(int mode, gmsg* msg);
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void del_msg(gmsg* msg);
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void new_msgno(gmsg* msg);
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char* user_lookup(char* lookfor);
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int renumber();
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void update_timesread(gmsg* msg);
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Line* make_dump_msg(Line*& lin, gmsg* msg, char* lng_head);
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};
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// ------------------------------------------------------------------
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extern SqshData* squishdata;
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extern SqshWide* squishwide;
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extern int squishdatano;
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// ------------------------------------------------------------------
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// Squish scanning types
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const int SQS_API = 1;
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const int SQS_QUICK = 2;
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// ------------------------------------------------------------------
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// Squish recycling types
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const int SQUISHRECYCLE_NO = false;
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const int SQUISHRECYCLE_YES = true;
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const int SQUISHRECYCLE_MSGAPI1 = SQUISHRECYCLE_YES + 1;
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const int SQUISHRECYCLE_MSGAPI2 = SQUISHRECYCLE_YES + 2;
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// ------------------------------------------------------------------
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#endif
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// ------------------------------------------------------------------
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