Drizzled Public API Documentation

scheduler.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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3  *
4  * Copyright (C) 2008 Sun Microsystems, Inc.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; version 2 of the License.
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10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #include <config.h>
21 #include <drizzled/plugin/scheduler.h>
22 #include <drizzled/errmsg_print.h>
23 #include <drizzled/gettext.h>
24 
25 namespace drizzled {
26 
27 typedef std::vector<plugin::Scheduler*> schedulers_t;
28 
29 static schedulers_t g_schedulers;
30 static plugin::Scheduler* g_scheduler= NULL;
31 
32 bool plugin::Scheduler::addPlugin(plugin::Scheduler *sched)
33 {
34  BOOST_FOREACH(schedulers_t::reference it, g_schedulers)
35  {
36  if (it->getName() != sched->getName())
37  continue;
38  errmsg_printf(error::ERROR, _("Attempted to register a scheduler %s, but a scheduler has already been registered with that name.\n"), sched->getName().c_str());
39  return true;
40  }
41  sched->deactivate();
42  g_schedulers.push_back(sched);
43  return false;
44 }
45 
46 void plugin::Scheduler::removePlugin(plugin::Scheduler *sched)
47 {
48  g_schedulers.erase(std::find(g_schedulers.begin(), g_schedulers.end(), sched));
49 }
50 
51 bool plugin::Scheduler::setPlugin(const std::string& name)
52 {
53  BOOST_FOREACH(schedulers_t::reference it, g_schedulers)
54  {
55  if (it->getName() != name)
56  continue;
57  if (g_scheduler)
58  g_scheduler->deactivate();
59  g_scheduler= it;
60  g_scheduler->activate();
61  return false;
62  }
63  errmsg_printf(error::WARN, _("Attempted to configure %s as the scheduler, which did not exist.\n"), name.c_str());
64  return true;
65 }
66 
67 plugin::Scheduler *plugin::Scheduler::getScheduler()
68 {
69  return g_scheduler;
70 }
71 
72 } /* namespace drizzled */
TODO: Rename this file - func.h is stupid.