Drizzled Public API Documentation

function.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2010 Mark Atwood
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; version 2 of the License.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #include <config.h>
21 
22 #include <drizzled/gettext.h>
23 #include <drizzled/session.h>
24 
25 #include <plugin/syslog/function.h>
26 #include <plugin/syslog/wrap.h>
27 
28 namespace drizzle_plugin
29 {
30 
31 udf::Syslog::Syslog()
32  : Item_str_func()
33 { }
34 
35 drizzled::String *udf::Syslog::val_str(drizzled::String *s)
36 {
37 
38  if (args[0]->null_value || args[1]->null_value || args[2]->null_value)
39  {
40  null_value= 1;
41  return 0;
42  }
43 
44  int syslog_facility= WrapSyslog::getFacilityByName(args[0]->val_str(s)->c_ptr());
45  int syslog_priority= WrapSyslog::getPriorityByName(args[1]->val_str(s)->c_ptr());
46 
47  if ((syslog_facility == -1) || (syslog_priority == -1))
48  {
49  null_value= 1;
50  return 0;
51  }
52 
53  char *syslog_string= args[2]->val_str(s)->c_ptr();
54  if ((syslog_string == 0) || (syslog_string[0] == 0))
55  {
56  null_value= 1;
57  return 0;
58  }
59 
60  WrapSyslog::singleton().log(syslog_facility, drizzled::error::priority_t(syslog_priority), "%s", syslog_string);
61 
62  null_value= 0;
63  return args[2]->val_str(s);
64 }
65 
66 void udf::Syslog::fix_length_and_dec()
67 {
68  max_length= args[0]->max_length;
69 }
70 
71 bool udf::Syslog::check_argument_count(int n)
72 {
73  return (n == 3);
74 }
75 
76 } /* namespace drizzle_plugin */