/*
SaveMap
overwrites the data file with a current version of the map
*/
void DATABASE::SaveMap(void)
{
string temp;
char* cstr;
ofstream file;
file.open(IOFILE,ios::trunc);
if (file.eof())
cout<<"eofbit set"<<endl;
if (file.fail())
cout<<"failbit set"<<endl;
if (file.bad())
cout<<"badbit set"<<endl;
if (file.fail())
{
cout<<"\nFile read\\write failed: SaveMap()\n";
exit(777);
}
for (iter = mymap.begin(); iter != mymap.end(); ++iter)
{
temp = iter->second;
// converting string to array
cstr = new char [temp.size()+1];
strcpy(cstr,temp.c_str());
cstr[temp.size()]='\n';
file.write(cstr,temp.size()+1);
delete cstr;
}
file.close();
cout<<"File saved."<<endl;
}
void showState(fstream &file)
{
cout << "File Status:\n";
cout << " eof bit: " << file.eof() << endl;
cout << " fail bit: " << file.fail() << endl;
cout << " bad bit: " << file.bad() << endl;
cout << " good bit: " << file.good() << endl;
file.clear(); // Clear any bad bits
}
void openFile(fstream &file, const string &fileName,
const std::ios_base::openmode openmode) throw (string) {
file.open(fileName.c_str(), openmode);
if (file.bad()) {
if (file.is_open()) {
file.close();
}
string message = "Nie udalo sie otworzyc pliku \"" + fileName + "\"";
throw message;
}
}
int CSndBuffer::addBufferFromFile(fstream& ifs, int len)
{
int size = len / m_iMSS;
if ((len % m_iMSS) != 0)
size ++;
// dynamically increase sender buffer
while (size + m_iCount >= m_iSize)
increase();
Block* s = m_pLastBlock;
int total = 0;
for (int i = 0; i < size; ++ i)
{
if (ifs.bad() || ifs.fail() || ifs.eof())
break;
size_t pktlen = len - i * m_iMSS;
if (pktlen > m_iMSS)
pktlen = m_iMSS;
ifs.read(s->m_pcData, pktlen);
pktlen = ifs.gcount();
if (pktlen <= 0)
break;
// currently file transfer is only available in streaming mode, message is always in order, ttl = infinite
s->m_iMsgNo = m_iNextMsgNo | 0x20000000;
if (i == 0)
s->m_iMsgNo |= 0x80000000;
if (i == size - 1)
s->m_iMsgNo |= 0x40000000;
s->m_iLength = pktlen;
s->m_iTTL = -1;
s = s->m_pNext;
total += pktlen;
}
m_pLastBlock = s;
CGuard::enterCS(m_BufLock);
m_iCount += size;
CGuard::leaveCS(m_BufLock);
m_iNextMsgNo ++;
if (m_iNextMsgNo == CMsgNo::m_iMaxMsgNo)
m_iNextMsgNo = 1;
return total;
}
void WriteCollection(fstream &out,MyIndexCollection &col,int Distinct=0)//,FieldInd)
{
int SizeStruct=col.GetSizeElement();
int NumRead=col.NumElement(),*IndexAr=col.IndexAr;
int k=1;
while (k<=NumRead)
{
char *buf=(char*)col.GetElement(IndexAr[k]);
out.write(buf,SizeStruct);
k++;
if (Distinct)
{ int beg=k-1;while ( (k<=NumRead) && (Order(IndexAr[beg],IndexAr[k])==0) ) k++;}
if (out.bad())
{ErrorOut<<" Error writing file.";throw int();};
}
};
int check_flags(const fstream& fh)
{
int status = 0;
//cout << "file is:\n";
if (fh.good())
status+=16;
if (fh.bad())
status+=2;
if (fh.fail())
status+=4;
if (fh.eof())
status+=8;
if (0 == status)
status = -1;
return status;
}
//这个函数存在问题，不能够处理大于2G的文件。
int CSndBuffer::addBufferFromFile(fstream& ifs, const int& len)
{
int size = len / m_iMSS;
if ((len % m_iMSS) != 0)
size ++;
// dynamically increase sender buffer
while (size + m_iCount >= m_iSize)
increase();
Block* s = m_pLastBlock;
int total = 0;
for (int i = 0; i < size; ++ i)
{
if (ifs.bad() || ifs.fail() || ifs.eof())
break;
int pktlen = len - i * m_iMSS;
if (pktlen > m_iMSS)
pktlen = m_iMSS;
ifs.read(s->m_pcData, pktlen);
if ((pktlen = ifs.gcount()) <= 0)
break;
s->m_iLength = pktlen;
s->m_iTTL = -1;
s = s->m_pNext;
total += pktlen;
}
m_pLastBlock = s;
CGuard::enterCS(m_BufLock);
m_iCount += size;
CGuard::leaveCS(m_BufLock);
return total;
}
