/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Libmemcached library
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* Copyright (C) 2010 Brian Aker All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <libmemcachedutil/common.h>
#include <cassert>
struct local_context
{
uint8_t major_version;
uint8_t minor_version;
uint8_t micro_version;
bool truth;
};
static memcached_return_t check_server_version(const memcached_st *,
const memcached_instance_st * instance,
void *context)
{
/* Do Nothing */
struct local_context *check= (struct local_context *)context;
if (memcached_server_major_version(instance) != UINT8_MAX &&
memcached_server_major_version(instance) >= check->major_version and
memcached_server_minor_version(instance) >= check->minor_version and
memcached_server_micro_version(instance) >= check->micro_version )
{
return MEMCACHED_SUCCESS;
}
check->truth= false;
return MEMCACHED_FAILURE;
}
bool libmemcached_util_version_check(memcached_st *memc,
uint8_t major_version,
uint8_t minor_version,
uint8_t micro_version)
{
if (memcached_failed(memcached_version(memc)))
{
return false;
}
struct local_context check= { major_version, minor_version, micro_version, true };
memcached_server_fn callbacks[1];
callbacks[0]= check_server_version;
memcached_server_cursor(memc, callbacks, (void *)&check, 1);
return check.truth;
}