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deb-goldedplus/goldlib/gmb3/gmowcat2.cpp

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// This may look like C code, but it is really -*- C++ -*-
// ------------------------------------------------------------------
// The Goldware Library
// Copyright (C) 1990-1999 Odinn Sorensen
// ------------------------------------------------------------------
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307, USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// WildCat! 4.x messagebase engine.
// ------------------------------------------------------------------
#include <gdbgerr.h>
#include <gmemdbg.h>
#include <gdbgtrk.h>
#include <gmowcat.h>
// ------------------------------------------------------------------
void WCatArea::refresh() {
GFTRK("WCatRefresh");
// Create new base record or read the existing one
if(data->fhix != -1) {
if(filelength(data->fhix) < sizeof(WCatBase)) {
data->base.recsize = sizeof(WCatIdx);
data->base.active = 0;
data->base.nextmsgno = 1;
lseekset(data->fhix, 0);
write(data->fhix, &data->base, sizeof(WCatBase));
}
else {
lseekset(data->fhix, 0);
read(data->fhix, &data->base, sizeof(WCatBase));
}
}
long ixnum = (filelength(data->fhix)-(long)sizeof(WCatBase)) / (long)sizeof(WCatIdx);
// Are there any msgs?
if(ixnum) {
// Read the index file
data->idx = (WCatIdx*)throw_realloc(data->idx, (uint)(ixnum*sizeof(WCatIdx)));
lseekset(data->fhix, sizeof(WCatBase));
read(data->fhix, data->idx, (uint)(ixnum*sizeof(WCatIdx)));
}
GFTRK(NULL);
}
// ------------------------------------------------------------------
void WCatArea::raw_scan(int __keep_index, int __scanpm) {
GFTRK("WCatRawScan");
WCatData* _was_data = data;
if(_was_data == NULL) {
data = wcatdata;
wide = wcatwide;
}
// Load the lastread
dword _lastread = 0;
int _fh = ::sopen(AddPath(path(), ".lrd"), O_RDONLY|O_BINARY, WideSharemode, S_STDRD);
if(_fh != -1) {
lseekset(_fh, wide->userno, sizeof(dword));
read(_fh, &_lastread, sizeof(dword));
::close(_fh);
}
// Open WildCat! files for scanning unless they are already open
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if(not isopen) {
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data->idx = NULL;
data->base.recsize = 0;
data->base.active = 0;
data->base.nextmsgno = 0;
// Open index file
data->fhix = ::sopen(AddPath(path(), ".ix"), O_RDONLY|O_BINARY, WideSharemode, S_STDRD);
if(data->fhix != -1) {
// Allocate index buffer and read from file
refresh();
// Close index file
::close(data->fhix);
data->fhix = -1;
}
}
register uint _active = 0;
register uint _lastread_reln = 0;
register ulong _lastreadfound = 0;
if(data->base.active) {
// (Re)allocate message index
if(__keep_index)
Msgn->Resize((uint)data->base.active);
// Variables for the loop
register ulong _msgno;
register ulong* _msgndxptr = Msgn->tag;
register WCatIdx* _ixptr = data->idx;
register dword _totalmsgs = data->base.active;
register ulong _firstmsgno = _totalmsgs ? _ixptr->msgno : 0;
register ulong _lastmsgno = 0;
// Fill message index
while(_active < _totalmsgs) {
_active++;
_msgno = (_ixptr++)->msgno;
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if(not _firstmsgno)
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_firstmsgno = _msgno;
if(__keep_index)
*_msgndxptr++ = _msgno;
// Get the lastread
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if((_msgno >= _lastread) and (_lastread_reln == 0)) {
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_lastreadfound = _msgno;
_lastread_reln = (uint)(_active - (_msgno != _lastread ? 1 : 0));
}
// Store last message number
_lastmsgno = _msgno;
}
// If the exact lastread was not found
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if(_active and (_lastreadfound != _lastread)) {
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// Higher than highest or lower than lowest?
if(_lastread > _lastmsgno)
_lastread_reln = _active;
else if(_lastread < _firstmsgno)
_lastread_reln = 0;
}
}
// Update area data
Msgn->SetCount(_active);
lastread = _lastread_reln;
lastreadentry = _lastreadfound;
// Scan for personal mail
if(__scanpm) {
// Not implemented yet
}
// Free index buffer if just counting
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if(not __keep_index or __scanpm)
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throw_release(data->idx);
if(_was_data == NULL) {
data = NULL;
wide = NULL;
}
GFTRK(NULL);
}
// ------------------------------------------------------------------
void WCatArea::scan() {
GFTRK("WCatScan");
raw_scan(true);
GFTRK(NULL);
}
// ------------------------------------------------------------------
void WCatArea::scan_area() {
GFTRK("WCatScanArea");
raw_scan(false);
GFTRK(NULL);
}
// ------------------------------------------------------------------
void WCatArea::scan_area_pm() {
GFTRK("WCatScanArea*M");
raw_scan(true, true);
Msgn->Reset();
GFTRK(NULL);
}
// ------------------------------------------------------------------