~drizzle-trunk/drizzle/development

1152.1.5 by Brian Aker
Remove Factory/make scheduler work like everything else.
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/* Copyright (C) 2009 Sun Microsystems
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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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   the Free Software Foundation; version 2 of the License.
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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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   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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
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1130.3.21 by Monty Taylor
Added missing include guards. Removed server_includes.h from header.
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#ifndef PLUGIN_SINGLE_THREAD_SINGLE_THREAD_H
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#define PLUGIN_SINGLE_THREAD_SINGLE_THREAD_H
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1152.1.5 by Brian Aker
Remove Factory/make scheduler work like everything else.
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#include <drizzled/gettext.h>
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#include <drizzled/error.h>
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#include <drizzled/plugin/scheduler.h>
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#include <drizzled/sql_parse.h>
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#include <drizzled/session.h>
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#include <string>
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/**
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 * Simple scheduler that uses the main thread to handle the request. This
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 * should only be used for debugging.
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 */
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class SingleThreadScheduler : public drizzled::plugin::Scheduler
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{
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public:
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  SingleThreadScheduler(const char *name_arg) : 
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    Scheduler(name_arg) {}
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  /* When we enter this function, LOCK_thread_count is held! */
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  virtual bool addSession(Session *session)
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  {
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    if (my_thread_init())
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    {
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      session->disconnect(ER_OUT_OF_RESOURCES, true);
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      statistic_increment(aborted_connects, &LOCK_status);
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      return true;
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    }
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    /*
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      This is not the real thread start beginning, but there is not an easy
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      way to find it.
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    */
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    session->thread_stack= (char *)&session;
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    session->run();
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    killSessionNow(session);
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    return false;
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  }
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  virtual void killSessionNow(Session *session)
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  {
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    unlink_session(session);
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    my_thread_end();
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  }
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};
1130.3.21 by Monty Taylor
Added missing include guards. Removed server_includes.h from header.
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#endif /* PLUGIN_SINGLE_THREAD_SINGLE_THREAD_H */