xwords/relay/permid.cpp
ehouse 2b58da4cdf New scheme for accepting and limiting reconnections. Now device must
send player counts, local and expected.  Based on these the relay
accepts connections, declares the game full and ready for message
forwarding, and decides whether to accept a reconnect.
2005-10-02 15:39:38 +00:00

68 lines
1.7 KiB
C++

/* -*-mode: C; fill-column: 78; c-basic-offset: 4; -*- */
/*
* Copyright 2005 by Eric House (fixin@peak.org). All rights reserved.
*
* 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 "permid.h"
#include <stdio.h>
#include "mlock.h"
using namespace std;
pthread_mutex_t PermID::s_guard = PTHREAD_MUTEX_INITIALIZER;
string PermID::s_serverName;
string
PermID::GetNextUniqueID()
{
MutexLock ml( &s_guard );
string s = s_serverName;
assert( s.length() > 0 );
s += ":";
char buf[32]; /* should last for a while :-) */
FILE* f = fopen( "/etc/xwrelay/xwrelay_id.txt", "r+" );
if ( f ) {
fscanf( f, "%s\n", buf );
rewind( f );
} else {
f = fopen( "/etc/xwrelay/xwrelay_id.txt", "w" );
assert ( f != NULL );
buf[0] = '0';
buf[1] = '\0';
}
int n = atoi(buf) + 1;
sprintf( buf, "%d", n );
fprintf( f, "%s\n", buf );
fclose( f );
s += buf;
return s;
}
/* static */ void
PermID::SetServerName( const char* name )
{
s_serverName = name;
}