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/* Copyright (C) 2009 Sun Microsystems
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 "function_map.h"
#include <string.h>
#include <stdlib.h>
using namespace std;
/* Constructor and destructor happen during module dlopen/dlclose. */
static GearmanFunctionMap _functionMap;
GearmanFunctionMap& GetFunctionMap(void)
{
return _functionMap;
}
GearmanFunctionMap::GearmanFunctionMap()
{
(void) pthread_mutex_init(&lock, NULL);
}
GearmanFunctionMap::~GearmanFunctionMap()
{
map<string, gearman_client_st>::iterator x;
for (x= functionMap.begin(); x != functionMap.end(); x++)
gearman_client_free(&((*x).second));
(void) pthread_mutex_destroy(&lock);
}
bool GearmanFunctionMap::add(string function, string servers)
{
map<string, gearman_client_st>::iterator x;
string host;
string port;
size_t begin_pos= 0;
size_t end_pos;
size_t port_pos;
pthread_mutex_lock(&lock);
x= functionMap.find(function);
if (x == functionMap.end())
{
if (gearman_client_create(&(functionMap[function])) == NULL)
{
pthread_mutex_unlock(&lock);
return false;
}
}
/* Parse server strings in the format "host[:port][,host[:port]]..." */
while (1)
{
end_pos= servers.find(',', begin_pos);
if (end_pos == string::npos)
host= servers.substr(begin_pos);
else
host= servers.substr(begin_pos, end_pos - begin_pos);
port_pos= host.find(':');
if (port_pos == string::npos)
port.clear();
else
{
port= host.substr(port_pos + 1);
host[port_pos]= 0;
}
/* For each host:port pair, add a server to the cloning object. */
if (gearman_client_add_server(&(functionMap[function]), host.c_str(),
port.size() == 0 ?
0 : atoi(port.c_str())) != GEARMAN_SUCCESS)
{
pthread_mutex_unlock(&lock);
return false;
}
if (end_pos == string::npos)
break;
begin_pos= end_pos + 1;
}
pthread_mutex_unlock(&lock);
return true;
}
bool GearmanFunctionMap::get(string function, gearman_client_st *client)
{
map<string, gearman_client_st>::iterator x;
pthread_mutex_lock(&lock);
x= functionMap.find(function);
if (x == functionMap.end())
{
x= functionMap.find(string(""));
if (x == functionMap.end())
{
pthread_mutex_unlock(&lock);
return false;
}
}
/* Clone the object, the list of host:port pairs get cloned with it. */
if (gearman_client_clone(client, &((*x).second)) == NULL)
{
pthread_mutex_unlock(&lock);
return false;
}
pthread_mutex_unlock(&lock);
return true;
}
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