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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/qcache.h>
int qcache_initializer(st_plugin_int *plugin)
{
qcache_t *p;
p= (qcache_t *) malloc(sizeof(qcache_t));
if (p == NULL) return 1;
memset(p, 0, sizeof(qcache_t));
plugin->data= (void *)p;
if (plugin->plugin->init)
{
if (plugin->plugin->init((void *)p))
{
/* TRANSLATORS: The leading word "qcache" is the name
of the plugin api, and so should not be translated. */
sql_print_error(_("qcache plugin '%s' init() failed"),
plugin->name.str);
goto err;
}
}
return 0;
err:
free(p);
return 1;
}
int qcache_finalizer(st_plugin_int *plugin)
{
qcache_t *p= (qcache_t *) plugin->data;
if (plugin->plugin->deinit)
{
if (plugin->plugin->deinit((void *)p))
{
/* TRANSLATORS: The leading word "qcache" is the name
of the plugin api, and so should not be translated. */
sql_print_error(_("qcache plugin '%s' deinit() failed"),
plugin->name.str);
}
}
if (p) free(p);
return 0;
}
/* The plugin_foreach() iterator requires that we
convert all the parameters of a plugin api entry point
into just one single void ptr, plus the session.
So we will take all the additional paramters of qcache_do1,
and marshall them into a struct of this type, and
then just pass in a pointer to it.
*/
typedef struct qcache_do1_parms_st
{
void *parm1;
void *parm2;
} qcache_do1_parms_t;
/* This gets called by plugin_foreach once for each loaded qcache plugin */
static bool qcache_do1_iterate (Session *session, plugin_ref plugin, void *p)
{
qcache_t *l= plugin_data(plugin, qcache_t *);
qcache_do1_parms_t *parms= (qcache_do1_parms_t *) p;
/* call this loaded qcache plugin's qcache_func1 function pointer */
if (l && l->qcache_func1)
{
if (l->qcache_func1(session, parms->parm1, parms->parm2))
{
/* TRANSLATORS: The leading word "qcache" is the name
of the plugin api, and so should not be translated. */
sql_print_error(_("qcache plugin '%s' do1() failed"),
(char *)plugin_name(plugin));
return true;
}
}
return false;
}
/* This is the qcache_do1 entry point.
This gets called by the rest of the Drizzle server code */
bool qcache_do1 (Session *session, void *parm1, void *parm2)
{
qcache_do1_parms_t parms;
bool foreach_rv;
/* marshall the parameters so they will fit into the foreach */
parms.parm1= parm1;
parms.parm2= parm2;
/* call qcache_do1_iterate
once for each loaded qcache plugin */
foreach_rv= plugin_foreach(session,
qcache_do1_iterate,
DRIZZLE_QCACHE_PLUGIN,
(void *) &parms);
return foreach_rv;
}
/* The plugin_foreach() iterator requires that we
convert all the parameters of a plugin api entry point
into just one single void ptr, plus the session.
So we will take all the additional paramters of qcache_do2,
and marshall them into a struct of this type, and
then just pass in a pointer to it.
*/
typedef struct qcache_do2_parms_st
{
void *parm3;
void *parm4;
} qcache_do2_parms_t;
/* This gets called by plugin_foreach once for each loaded qcache plugin */
static bool qcache_do2_iterate (Session *session, plugin_ref plugin, void *p)
{
qcache_t *l= plugin_data(plugin, qcache_t *);
qcache_do2_parms_t *parms= (qcache_do2_parms_t *) p;
/* call this loaded qcache plugin's qcache_func1 function pointer */
if (l && l->qcache_func1)
{
if (l->qcache_func2(session, parms->parm3, parms->parm4))
{
/* TRANSLATORS: The leading word "qcache" is the name
of the plugin api, and so should not be translated. */
sql_print_error(_("qcache plugin '%s' qcache_func2() failed"),
(char *)plugin_name(plugin));
return true;
}
}
return false;
}
/* This is the qcache_do2 entry point.
This gets called by the rest of the Drizzle server code */
bool qcache_do2 (Session *session, void *parm3, void *parm4)
{
qcache_do2_parms_t parms;
bool foreach_rv;
/* marshall the parameters so they will fit into the foreach */
parms.parm3= parm3;
parms.parm4= parm4;
/* call qcache_do2_iterate
once for each loaded qcache plugin */
foreach_rv= plugin_foreach(session,
qcache_do2_iterate,
DRIZZLE_QCACHE_PLUGIN,
(void *) &parms);
return foreach_rv;
}
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