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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Mark Atwood
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <drizzled/server_includes.h>
#include <drizzled/scheduling.h>
#include <drizzled/gettext.h>
#include <drizzled/plugin_scheduling.h>
#include <drizzled/connect.h>
Scheduler *thread_scheduler= NULL;
static bool scheduler_inited= false; /* We must insist that only one of these plugins get loaded at a time */
extern char *opt_scheduler;
Scheduler &get_thread_scheduler()
{
assert(thread_scheduler != NULL);
return *thread_scheduler;
}
int scheduling_initializer(st_plugin_int *plugin)
{
if (memcmp(plugin->plugin->name, opt_scheduler, strlen(opt_scheduler)))
return 0;
if (scheduler_inited)
{
fprintf(stderr, "You cannot load more then one scheduler plugin\n");
exit(1);
}
assert(plugin->plugin->init); /* Find poorly designed plugins */
if (plugin->plugin->init((void *)&thread_scheduler))
{
/*
TRANSLATORS> The leading word "scheduling" is the name
of the plugin api, and so should not be translated.
*/
errmsg_printf(ERRMSG_LVL_ERROR, _("scheduling plugin '%s' init() failed"),
plugin->name.str);
return 1;
}
scheduler_inited= true;
/* We populate so we can find which plugin was initialized later on */
plugin->data= (void *)thread_scheduler;
plugin->state= PLUGIN_IS_READY;
return 0;
}
int scheduling_finalizer(st_plugin_int *plugin)
{
/* We know which one we initialized since its data pointer is filled */
if (plugin->plugin->deinit && plugin->data)
{
if (plugin->plugin->deinit((void *)thread_scheduler))
{
/* TRANSLATORS: The leading word "scheduling" is the name
of the plugin api, and so should not be translated. */
errmsg_printf(ERRMSG_LVL_ERROR,
_("scheduling plugin '%s' deinit() failed"),
plugin->name.str);
}
}
return 0;
}
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