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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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* Copyright (C) 2008 Mark Atwood
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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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#include <drizzled/server_includes.h>
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#include <drizzled/scheduling.h>
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#include <drizzled/gettext.h>
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#include <drizzled/plugin_scheduling.h>
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#include <drizzled/connect.h>
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scheduling_st thread_scheduler;
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static bool scheduler_inited= false; /* We must insist that only one of these plugins get loaded at a time */
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static void post_kill_dummy(Session *) { return; }
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static bool end_thread_dummy(Session *, bool) { return false; }
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extern char *opt_scheduler;
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int scheduling_initializer(st_plugin_int *plugin)
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if (memcmp(plugin->plugin->name, opt_scheduler, strlen(opt_scheduler)))
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fprintf(stderr, "You cannot load more then one scheduler plugin\n");
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memset(&thread_scheduler, 0, sizeof(scheduling_st));
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assert(plugin->plugin->init); /* Find poorly designed plugins */
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if (plugin->plugin->init)
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thread_scheduler.post_kill_notification= post_kill_dummy;
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thread_scheduler.end_thread= end_thread_dummy;
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thread_scheduler.init_new_connection_thread= init_new_connection_handler_thread;
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if (plugin->plugin->init((void *)&thread_scheduler))
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TRANSLATORS> The leading word "scheduling" is the name
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of the plugin api, and so should not be translated.
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errmsg_printf(ERRMSG_LVL_ERROR, _("scheduling plugin '%s' init() failed"),
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/* We are going to assert() on any plugin that is not well written. */
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assert(thread_scheduler.max_threads);
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assert(thread_scheduler.init_new_connection_thread);
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assert(thread_scheduler.add_connection);
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assert(thread_scheduler.post_kill_notification);
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assert(thread_scheduler.end_thread);
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scheduler_inited= true;
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/* We populate so we can find which plugin was initialized later on */
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plugin->data= (void *)&thread_scheduler;
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plugin->state= PLUGIN_IS_READY;
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int scheduling_finalizer(st_plugin_int *plugin)
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/* We know which one we initialized since its data pointer is filled */
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if (plugin->plugin->deinit && plugin->data)
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if (plugin->plugin->deinit((void *)&thread_scheduler))
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/* TRANSLATORS: The leading word "scheduling" is the name
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of the plugin api, and so should not be translated. */
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errmsg_printf(ERRMSG_LVL_ERROR, _("scheduling plugin '%s' deinit() failed"),