//---------------------------------------------------------------------------
void PacketFile::atClose(void)
{
if(isOpen() && fileMode != READ) // update filesize
{
int32_t endPtr = getLength();
//seek(sizeof(int32_t)); //Move Past Version Marker
//writeLong(endPtr); //Write File length
int32_t tableEntry;
currentPacket = numPackets;
if(!seekTable)
{
while(--currentPacket >= 0)
{
seek(TABLE_ENTRY(currentPacket));
tableEntry = readLong();
if(GetPacketType(tableEntry) == STORAGE_TYPE_NUL)
{
seek(TABLE_ENTRY(currentPacket));
writeLong(SetPacketType(endPtr, STORAGE_TYPE_NUL));
}
else
{
endPtr = GetPacketOffset(tableEntry);
}
}
}
else
{
while(--currentPacket >= 0)
{
tableEntry = seekTable[currentPacket];
if(GetPacketType(tableEntry) == STORAGE_TYPE_NUL)
{
seekTable[currentPacket] = SetPacketType(endPtr, STORAGE_TYPE_NUL);
}
else
{
endPtr = GetPacketOffset(tableEntry);
}
}
}
//-----------------------------------------------------
// If seekTable was being used, write it back to file
if(seekTable)
{
seek(sizeof(int32_t) * 2); //File Version & File Length
write(puint8_t(seekTable), (numPackets * sizeof(int32_t)));
}
//------------------------------------------------------
// Is we were using a checkSum, calc it and write it to
// the beginning of the file.
if(usesCheckSum)
{
int32_t checkSum = checkSumFile();
seek(0);
writeLong(checkSum);
}
}
clear();
}
//---------------------------------------------------------------------------
int32_t PacketFile::readPacketOffset(int32_t packet, int32_t* lastType)
{
int32_t offset = -1;
if(packet < numPackets)
{
if(seekTable)
offset = seekTable[packet];
if(lastType)
*lastType = GetPacketType(offset);
offset = GetPacketOffset(offset);
}
return offset;
}
//---------------------------------------------------------------------------
long PacketFile::readPacketOffset (long packet, long *lastType)
{
long offset = -1;
if (packet < numPackets)
{
if (seekTable)
offset = seekTable[packet];
if (lastType)
*lastType = GetPacketType(offset);
offset = GetPacketOffset(offset);
}
return offset;
}
