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  • Committer: Lee
  • Date: 2008-10-30 22:02:01 UTC
  • mto: (572.1.2 devel)
  • mto: This revision was merged to the branch mainline in revision 573.
  • Revision ID: lbieber@lbieber-desktop-20081030220201-elb6qprbzpn7c5a4
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drizzled/query_id.h
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#ifndef DRIZZLED_QUERY_ID_H
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#define DRIZZLED_QUERY_ID_H
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#include <drizzled/atomics.h>
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namespace drizzled
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{
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typedef uint64_t query_id_t;
 
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#ifndef DRIZZLED_GLOBAL_QUERY_ID_H
 
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#define DRIZZLED_GLOBAL_QUERY_ID_H
 
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#include <pthread.h>
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class Query_id
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{
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  query_id_t next();
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private:
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  atomic<uint64_t> the_query_id;
 
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  pthread_mutex_t LOCK_query_id;
 
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  query_id_t the_query_id;
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  Query_id();
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  Query_id(Query_id const&);
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  Query_id& operator=(Query_id const&);
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};
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} /* namespace drizzled */
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#endif /* DRIZZLED_QUERY_ID_H */
 
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#endif