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/*
Miranda Database Tool
Copyright (C) 2001-2005 Richard Hughes
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "dbtool.h"
int WorkSettingsChain(DWORD ofsContact,DBContact *dbc,int firstTime);
int WorkEventChain(DWORD ofsContact,DBContact *dbc,int firstTime);
static DWORD ofsThisContact,ofsDestPrevContact;
static DWORD contactCount;
static DWORD ofsDestThis,ofsNextContact;
static int phase;
static DBContact dbc;
static void FinishUp(void)
{
if(contactCount!=dbhdr.contactCount)
AddToStatus(STATUS_WARNING,TranslateT("Contact count marked wrongly: correcting"));
dbhdr.contactCount=contactCount;
}
int WorkContactChain(int firstTime)
{
int first=0;
if(firstTime) {
AddToStatus(STATUS_MESSAGE,TranslateT("Processing contact chain"));
ofsDestPrevContact=0;
ofsThisContact=dbhdr.ofsFirstContact;
contactCount=0;
dbhdr.ofsFirstContact=0;
phase=0;
}
switch(phase) {
int ret;
case 0:
if(ofsThisContact==0) {
FinishUp();
return ERROR_NO_MORE_ITEMS;
}
if (!SignatureValid(ofsThisContact,DBCONTACT_SIGNATURE)) {
AddToStatus(STATUS_ERROR,TranslateT("Contact chain corrupted, further entries ignored"));
FinishUp();
return ERROR_NO_MORE_ITEMS;
}
if(ReadSegment(ofsThisContact,&dbc,sizeof(dbc))!=ERROR_SUCCESS) {
FinishUp();
return ERROR_NO_MORE_ITEMS;
}
ofsNextContact=dbc.ofsNext;
dbc.ofsNext=0;
if (!opts.bCheckOnly) {
if ((ofsDestThis=WriteSegment(WSOFS_END,&dbc,sizeof(dbc)))==WS_ERROR)
return ERROR_HANDLE_DISK_FULL;
if(ofsDestPrevContact)
WriteSegment(ofsDestPrevContact+offsetof(DBContact,ofsNext),&ofsDestThis,sizeof(DWORD));
else
dbhdr.ofsFirstContact=ofsDestThis;
} else
ofsDestThis = ofsThisContact; // needed in event chain worker
contactCount++;
phase++; first=1;
//fall thru
case 1:
ret=WorkSettingsChain(ofsDestThis,&dbc,first);
if(ret==ERROR_NO_MORE_ITEMS) {
phase++; first=1;
}
else if(ret) return ret;
else break;
//fall thru
case 2:
ret=WorkEventChain(ofsDestThis,&dbc,first);
if(ret==ERROR_NO_MORE_ITEMS) {
phase++; first=1;
}
else if(ret) return ret;
else break;
//fall thru
case 3:
if(WriteSegment(ofsDestThis,&dbc,sizeof(DBContact))==WS_ERROR)
return ERROR_HANDLE_DISK_FULL;
ofsDestPrevContact=ofsDestThis;
ofsThisContact=ofsNextContact;
phase=0;
break;
}
return ERROR_SUCCESS;
}
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