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git://xwords.git.sourceforge.net/gitroot/xwords/xwords
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6c121dac57
duplicating set of sockets owned by a cref, moving it from cinfo into cref and caching a copy outside when cref is unclaimed (after which no change is possible until it's claimed again.)
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/* -*-mode: C; fill-column: 78; c-basic-offset: 4; -*- */
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/*
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* Copyright 2005-2011 by Eric House (xwords@eehouse.org). All rights
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* 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.
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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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#ifndef _CIDLOCK_H_
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#define _CIDLOCK_H_
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#include <map>
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#include <set>
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#include "xwrelay.h"
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#include "cref.h"
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using namespace std;
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class CidInfo {
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public:
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CidInfo( CookieID cid )
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:m_cid(cid),
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m_cref(NULL),
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m_owner(NULL) {}
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CookieID GetCid( void ) { return m_cid; }
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CookieRef* GetRef( void ) { return m_cref; }
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pthread_t GetOwner( void ) { return m_owner; }
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const set<int> GetSockets( void );
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void SetSockets( set<int> sockets ) { m_sockets = sockets; };
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void SetRef( CookieRef* cref ) { m_cref = cref; }
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void SetOwner( pthread_t owner ) { m_owner = owner; }
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private:
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CookieID m_cid;
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CookieRef* m_cref;
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pthread_t m_owner;
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set<int> m_sockets;
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};
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class CidLock {
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public:
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static CidLock* GetInstance() {
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if ( NULL == s_instance ) {
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s_instance = new CidLock();
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}
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return s_instance;
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}
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~CidLock();
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CidInfo* Claim( void ) { return Claim(0); }
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CidInfo* Claim( CookieID cid );
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CidInfo* ClaimSocket( int sock );
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void Relinquish( CidInfo* claim, bool drop );
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private:
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static CidLock* s_instance;
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CidLock();
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void print_claimed( const char* caller );
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map< CookieID, CidInfo* > m_infos;
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pthread_mutex_t m_infos_mutex;
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pthread_cond_t m_infos_condvar;
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int m_nextCID;
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}; /* CidLock */
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#endif
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