Multi-thread fstream write data with filelock

# Include <fstream>
# Include <iostream>
# Include <stdlib. h>
# Include <vector>
# Include <string>
# Include <stdio. h>
# Include <unistd. h>
# Include <sys/types. h>
# Include <sys/STAT. h>
# Include <fcntl. h>
# Include <errno. h>
# Include <sys/file. h>
# Include <string. h>

 

Int m_ncountmember;
Vector <string> vectdata;
Inline void putint (string & STR, int ncount)
{
Char szbuffer [1024] = {0 };
Sprintf (szbuffer, "% d", ncount );
STR + = szbuffer;
}
Inline void putint (string & STR, string strdata)
{
STR + = strdata;
}

Bool print (crole * prole, string filename)
{
If (null = prole)
Return false;
String strdata;
Putint (strdata, prole-> account_name );
Putint (strdata, "\ t ");
Putint (strdata, prole-> role_name );
Putint (strdata, "\ t ");
Putint (strdata, prole-> m_nrolecreatetime );
Putint (strdata, "\ t ");
Putint (strdata, prole-> m_nonline );
Putint (strdata, "\ t ");
Putint (strdata, prole-> m_nlastonlinetime );
Putint (strdata, "\ t ");
Putint (strdata, prole-> m_nrolepetmaxlv );
Putint (strdata, "\ t ");
Putint (strdata, 0 );
Vectdata. push_back (strdata );
M_ncountmember ++;
If (m_ncountmember % 20000 = 0 & 0 <m_ncountmember)
{
Ofstream savemebbers;
String LOGNAME = filename + "log.txt ";
Ofstream savelog (LOGNAME. c_str (), IOS: APP );
Savelog <"Thread" <m_nid + 1 <"Player data" <m_ncountmember <Endl;
Savemebbers. Open (m_strfilename.c_str (), IOS: APP );
If (! Savemebbers)
{
Savelog <"Thread" <m_nid + 1 <"Open File" <m_strfilename <"failed" <Endl;
Return false;
}
Int NFD = open (m_strfilename.c_str (), o_wronly | o_creat );
Flock (NFD, lock_ex );
For (INT I = 0; I <vectdata. Size (); I ++)
Savemebbers <vectdata [I] <Endl;
Flock (NFD, lock_un );
Vectdata. Clear ();
Savemebbers. Close ();
}
Return true;
}