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drizzled/plugin/scheduler.cc
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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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#include "config.h"
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#include <algorithm>
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#include "drizzled/server_includes.h"
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#include "drizzled/plugin/scheduler.h"
 
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#include "drizzled/plugin/registry.h"
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#include "drizzled/gettext.h"
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#include "drizzled/errmsg_print.h"
 
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using namespace std;
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namespace drizzled
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{
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extern size_t my_thread_stack_size;
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std::vector<plugin::Scheduler *> all_schedulers;
 
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vector<plugin::Scheduler *> all_schedulers;
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/* Globals (TBK) */
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static plugin::Scheduler *scheduler= NULL;
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class FindSchedulerByName : public std::unary_function<plugin::Scheduler *, bool>
 
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class FindSchedulerByName : public unary_function<plugin::Scheduler *, bool>
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{
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  const std::string *name;
 
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  const string *name;
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public:
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  FindSchedulerByName(const std::string *name_arg)
 
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  FindSchedulerByName(const string *name_arg)
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    : name(name_arg) {}
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  result_type operator() (argument_type sched)
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  {
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bool plugin::Scheduler::addPlugin(plugin::Scheduler *sched)
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{
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  std::vector<plugin::Scheduler *>::iterator iter=
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    std::find_if(all_schedulers.begin(), all_schedulers.end(), 
 
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  vector<plugin::Scheduler *>::iterator iter=
 
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    find_if(all_schedulers.begin(), all_schedulers.end(), 
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            FindSchedulerByName(&sched->getName()));
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  if (iter != all_schedulers.end())
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  {
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    errmsg_printf(error::ERROR,
 
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    errmsg_printf(ERRMSG_LVL_ERROR,
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                  _("Attempted to register a scheduler %s, but a scheduler "
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                    "has already been registered with that name.\n"),
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                    sched->getName().c_str());
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    return true;
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  }
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  sched->deactivate();
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  all_schedulers.push_back(sched);
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  return false;
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void plugin::Scheduler::removePlugin(plugin::Scheduler *sched)
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{
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  all_schedulers.erase(std::find(all_schedulers.begin(),
 
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  all_schedulers.erase(find(all_schedulers.begin(),
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                            all_schedulers.end(),
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                            sched));
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}
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bool plugin::Scheduler::setPlugin(const std::string& name)
 
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bool plugin::Scheduler::setPlugin(const string& name)
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{
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  std::vector<plugin::Scheduler *>::iterator iter=
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    std::find_if(all_schedulers.begin(), all_schedulers.end(), 
 
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  vector<plugin::Scheduler *>::iterator iter=
 
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    find_if(all_schedulers.begin(), all_schedulers.end(), 
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            FindSchedulerByName(&name));
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  if (iter != all_schedulers.end())
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  {
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    if (scheduler != NULL)
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      scheduler->deactivate();
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    scheduler= *iter;
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    scheduler->activate();
 
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    return false;
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  }
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  errmsg_printf(error::WARN,
 
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  errmsg_printf(ERRMSG_LVL_WARN,
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                _("Attempted to configure %s as the scheduler, which did "
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                  "not exist.\n"), name.c_str());
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  return true;