1
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
4
* Copyright (C) 2000 MySQL AB
5
* Copyright (C) 2008, 2009 Sun Microsystems, Inc.
7
* This program is free software; you can redistribute it and/or modify
8
* it under the terms of the GNU General Public License as published by
9
* the Free Software Foundation; version 2 of the License.
11
* This program is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with this program; if not, write to the Free Software
18
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1
/* Copyright (C) 2000 MySQL AB
3
This program is free software; you can redistribute it and/or modify
4
it under the terms of the GNU General Public License as published by
5
the Free Software Foundation; version 2 of the License.
7
This program is distributed in the hope that it will be useful,
8
but WITHOUT ANY WARRANTY; without even the implied warranty of
9
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10
GNU General Public License for more details.
12
You should have received a copy of the GNU General Public License
13
along with this program; if not, write to the Free Software
14
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
21
16
/* This implements 'user defined functions' */
24
#include <boost/unordered_map.hpp>
17
#include <drizzled/server_includes.h>
26
18
#include <drizzled/gettext.h>
27
#include "drizzled/plugin/function.h"
29
#include "drizzled/util/string.h"
34
static plugin::Function::UdfMap udf_registry;
36
const plugin::Function::UdfMap &plugin::Function::getMap()
41
bool plugin::Function::addPlugin(const plugin::Function *udf)
43
if (udf_registry.find(udf->getName()) != udf_registry.end())
45
errmsg_printf(ERRMSG_LVL_ERROR,
46
_("A function named %s already exists!\n"),
47
udf->getName().c_str());
50
std::pair<UdfMap::iterator, bool> ret=
51
udf_registry.insert(make_pair(udf->getName(), udf));
52
if (ret.second == false)
54
errmsg_printf(ERRMSG_LVL_ERROR,
55
_("Could not add Function!\n"));
62
void plugin::Function::removePlugin(const plugin::Function *udf)
64
udf_registry.erase(udf->getName());
67
const plugin::Function *plugin::Function::get(const char *name, size_t length)
69
UdfMap::iterator iter= udf_registry.find(std::string(name, length));
70
if (iter == udf_registry.end())
19
#include <drizzled/sql_udf.h>
26
static bool udf_startup= false; /* We do not lock because startup is single threaded */
27
static map<string, Function_builder *> udf_map;
30
/* This is only called if using_udf_functions != 0 */
31
Function_builder *find_udf(const char *name, uint32_t length)
35
* @todo: check without transform, then check with transform if needed
37
Function_builder *udf= NULL;
39
if (udf_startup == false)
42
string find_str(name, length);
43
transform(find_str.begin(), find_str.end(),
44
find_str.begin(), ::tolower);
46
map<string, Function_builder *>::iterator find_iter;
47
find_iter= udf_map.find(find_str);
48
if (find_iter != udf_map.end())
49
udf= (*find_iter).second;
54
static bool add_udf(Function_builder *udf)
57
* @todo: add all lower and all upper version
59
string add_str= udf->get_name();
60
transform(add_str.begin(), add_str.end(),
61
add_str.begin(), ::tolower);
63
udf_map[add_str]= udf;
65
using_udf_functions= 1;
70
int initialize_udf(st_plugin_int *plugin)
76
if (plugin->plugin->init)
79
if ((r= plugin->plugin->init((void *)&f)))
81
errmsg_printf(ERRMSG_LVL_ERROR,
82
_("Plugin '%s' init function returned error %d."),
74
return (*iter).second;
77
} /* namespace drizzled */
93
plugin->state= PLUGIN_IS_READY;
99
int finalize_udf(st_plugin_int *plugin)
101
Function_builder *udff = (Function_builder *)plugin->data;
103
/* TODO: Issue warning on failure */
104
if (udff && plugin->plugin->deinit)
105
(void)plugin->plugin->deinit(udff);