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git://xwords.git.sourceforge.net/gitroot/xwords/xwords
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102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/* -*- compile-command: "make -k -j3"; -*- */
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/*
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* Copyright 2013 by Eric House (xwords@eehouse.org). All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <glib.h>
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#include "devmgr.h"
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#include "mlock.h"
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static DevMgr* s_instance = NULL;
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/* static */ DevMgr*
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DevMgr::Get()
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{
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if ( NULL == s_instance ) {
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s_instance = new DevMgr();
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}
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return s_instance;
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} /* Get */
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void
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DevMgr::Remember( DevIDRelay devid, const AddrInfo::AddrUnion* saddr )
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{
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if ( DBMgr::DEVID_NONE != devid ) {
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gchar* b64 = g_base64_encode( (unsigned char*)&saddr->u.addr,
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sizeof(saddr->u.addr) );
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XW_LogLevel level = XW_LOGINFO;
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if ( willLog( level ) ) {
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logf( level, "%s(devid=%d, saddr='%s')", __func__, devid, b64 );
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}
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time_t now = time( NULL );
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UDPAddrRec rec( saddr, now );
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MutexLock ml( &m_mapLock );
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// C++'s insert doesn't replace, but the result tells whether the key was
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// already there and provides an iterator via which it can be updated
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pair<map<DevIDRelay,UDPAddrRec>::iterator, bool> result =
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m_devAddrMap.insert( pair<DevIDRelay,UDPAddrRec>( devid, rec ) );
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if ( !result.second ) {
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logf( XW_LOGINFO, "%s: replacing address for %d", __func__, devid );
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result.first->second = rec;
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}
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map<AddrInfo::AddrUnion, DevIDRelay>::iterator iter =
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m_addrDevMap.find(*saddr);
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if ( m_addrDevMap.end() != iter && devid != iter->second ) {
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logf( XW_LOGERROR, "%s: addr '%s' already listed (for devid %d)",
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__func__, b64, iter->second );
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// assert(0); // assert instead about age?
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iter->second = devid;
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} else {
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m_addrDevMap.insert( pair<AddrInfo::AddrUnion,
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DevIDRelay>(*saddr, devid ) );
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}
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logf( XW_LOGINFO, "dev->addr map now contains %d entries",
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m_devAddrMap.size() );
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g_free( b64 );
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}
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}
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void
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DevMgr::Remember( DevIDRelay devid, const AddrInfo* addr )
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{
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Remember( devid, addr->saddr() );
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}
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const AddrInfo::AddrUnion*
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DevMgr::get( DevIDRelay devid )
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{
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const AddrInfo::AddrUnion* result = NULL;
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MutexLock ml( &m_mapLock );
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map<DevIDRelay,UDPAddrRec>::const_iterator iter;
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iter = m_devAddrMap.find( devid );
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if ( m_devAddrMap.end() != iter ) {
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result = &iter->second.m_addr;
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logf( XW_LOGINFO, "%s: found addr for %.8x; is %d seconds old", __func__,
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devid, time(NULL) - iter->second.m_added );
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}
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logf( XW_LOGINFO, "%s(devid=%d)=>%p", __func__, devid, result );
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return result;
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}
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