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/* Copyright (C) 2006-2007 MySQL AB
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 <stdio.h>
#include <mysql/plugin.h>
#include <mysql/plugin_audit.h>
#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__) || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
#define __attribute__(A)
#endif
static volatile int number_of_calls; /* for SHOW STATUS, see below */
/*
Initialize the plugin at server start or plugin installation.
SYNOPSIS
audit_null_plugin_init()
DESCRIPTION
Does nothing.
RETURN VALUE
0 success
1 failure (cannot happen)
*/
static int audit_null_plugin_init(void *arg __attribute__((unused)))
{
number_of_calls= 0;
return(0);
}
/*
Terminate the plugin at server shutdown or plugin deinstallation.
SYNOPSIS
audit_null_plugin_deinit()
Does nothing.
RETURN VALUE
0 success
1 failure (cannot happen)
*/
static int audit_null_plugin_deinit(void *arg __attribute__((unused)))
{
printf("audit_null was invoked %u times\n", number_of_calls);
return(0);
}
/*
Foo
SYNOPSIS
audit_null_notify()
thd connection context
DESCRIPTION
*/
static void audit_null_notify(MYSQL_THD thd __attribute__((unused)),
const struct mysql_event *event
__attribute__((unused)))
{
/* prone to races, oh well */
number_of_calls++;
}
/*
Plugin type-specific descriptor
*/
static struct st_mysql_audit audit_null_descriptor=
{
MYSQL_AUDIT_INTERFACE_VERSION, /* interface version */
NULL, /* release_thd function */
audit_null_notify, /* notify function */
{ (unsigned long) -1 } /* class mask */
};
/*
Plugin status variables for SHOW STATUS
*/
static struct st_mysql_show_var simple_status[]=
{
{"audit_null_called", (char *)&number_of_calls, SHOW_INT},
{0,0,0}
};
/*
Plugin library descriptor
*/
mysql_declare_plugin(audit_null)
{
MYSQL_AUDIT_PLUGIN, /* type */
&audit_null_descriptor, /* descriptor */
"NULL_AUDIT", /* name */
"MySQL AB", /* author */
"Simple NULL Audit", /* description */
PLUGIN_LICENSE_GPL,
audit_null_plugin_init, /* init function (when loaded) */
audit_null_plugin_deinit, /* deinit function (when unloaded) */
0x0001, /* version */
simple_status, /* status variables */
NULL, /* system variables */
NULL
}
mysql_declare_plugin_end;
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