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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* 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 <config.h>
#include <drizzled/plugin.h>
#include <drizzled/plugin/function.h>
#include <drizzled/item/func.h>
#include <drizzled/algorithm/crc32.h>
#include <string>
using namespace std;
using namespace drizzled;
class Crc32Function : public Item_int_func
{
public:
int64_t val_int();
Crc32Function()
{
unsigned_flag= true;
}
const char *func_name() const
{
return "crc32";
}
void fix_length_and_dec()
{
max_length= 10;
}
bool check_argument_count(int n)
{
return (n == 1);
}
};
int64_t Crc32Function::val_int()
{
assert(fixed == true);
String value;
String *res=args[0]->val_str(&value);
if (res == NULL)
{
null_value= true;
return 0;
}
null_value= false;
return static_cast<int64_t>(drizzled::algorithm::crc32(res->ptr(), res->length()));
}
static int initialize(module::Context &context)
{
context.add(new plugin::Create_function<Crc32Function>("crc32"));
return 0;
}
DRIZZLE_PLUGIN(initialize, NULL, NULL);
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