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/*
* Copyright (c) 2009, Padraig O'Sullivan
* 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.
* * Neither the name of Padraig O'Sullivan nor the names of its contributors
* may 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 HOLDER 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.
*/
#ifndef PLUGIN_MEMCACHED_STATS_SYSVAR_HOLDER_H
#define PLUGIN_MEMCACHED_STATS_SYSVAR_HOLDER_H
#include <pthread.h>
#include <string>
class SysvarHolder
{
public:
static SysvarHolder &singleton()
{
static SysvarHolder holder;
return holder;
}
void setServersString(const std::string &in_servers)
{
servers_string.assign(in_servers);
}
void setServersStringVar(const std::string &in_servers)
{
pthread_mutex_lock(&mutex);
servers_string.assign(in_servers);
}
void updateServersSysvar(const char **var_ptr)
{
*var_ptr= servers_string.c_str();
pthread_mutex_unlock(&mutex);
}
const std::string getServersString() const
{
return servers_string;
}
private:
pthread_mutex_t mutex;
std::string servers_string;
SysvarHolder()
:
mutex(),
servers_string()
{
pthread_mutex_init(&mutex, NULL);
}
~SysvarHolder()
{
pthread_mutex_destroy(&mutex);
}
SysvarHolder(const SysvarHolder&);
};
#endif /* PLUGIN_MEMCACHED_STATS_SYSVAR_HOLDER_H */
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