Drizzled Public API Documentation

status_helper.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2008 Sun Microsystems, Inc.
5  * Copyright (C) 2010 Joseph Daly
6  *
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.
10  *
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.
15  *
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
19  */
20 
21 #include <config.h>
22 #include "status_helper.h"
23 #include <boost/lexical_cast.hpp>
24 #include <drizzled/open_tables_state.h>
25 #include <drizzled/set_var.h>
26 #include <drizzled/drizzled.h>
27 #include <plugin/myisam/myisam.h>
28 #include <sstream>
29 
30 using namespace std;
31 
32 namespace drizzled {
33 
34 extern time_t server_start_time;
35 extern time_t flush_status_time;
36 
37 static int show_starttime_new(drizzle_show_var *var, char *buff)
38 {
39  var->type= SHOW_LONG;
40  var->value= buff;
41  *((long *)buff)= (long) (time(NULL) - server_start_time);
42  return 0;
43 }
44 
45 static int show_flushstatustime_new(drizzle_show_var *var, char *buff)
46 {
47  var->type= SHOW_LONG;
48  var->value= buff;
49  *((long *)buff)= (long) (time(NULL) - flush_status_time);
50  return 0;
51 }
52 
53 static int show_connection_count_new(drizzle_show_var *var, char *buff)
54 {
55  var->type= SHOW_INT;
56  var->value= buff;
57  *((uint32_t *)buff)= connection_count;
58  return 0;
59 }
60 
61 static st_show_var_func_container show_starttime_cont_new= { &show_starttime_new };
62 
63 static st_show_var_func_container show_flushstatustime_cont_new= { &show_flushstatustime_new };
64 
65 static st_show_var_func_container show_connection_count_cont_new= { &show_connection_count_new };
66 
67 string StatusHelper::fillHelper(system_status_var *status_var, const char *value, SHOW_TYPE show_type)
68 {
69  ostringstream oss;
70  switch (show_type)
71  {
72  case SHOW_DOUBLE_STATUS:
73  value= ((char *) status_var + (ulong) value);
74  /* fall through */
75  case SHOW_DOUBLE:
76  oss.precision(6);
77  oss << *(double *) value;
78  return oss.str();
79  case SHOW_LONG_STATUS:
80  value= ((char *) status_var + (ulong) value);
81  /* fall through */
82  case SHOW_LONG:
83  return boost::lexical_cast<std::string>(*(long*) value);
84  break;
85  case SHOW_LONGLONG_STATUS:
86  value= ((char *) status_var + (uint64_t) value);
87  /* fall through */
88  case SHOW_LONGLONG:
89  return boost::lexical_cast<std::string>(*(int64_t*) value);
90  case SHOW_SIZE:
91  return boost::lexical_cast<std::string>(*(size_t*) value);
92  case SHOW_HA_ROWS:
93  return boost::lexical_cast<std::string>((int64_t) *(ha_rows*) value);
94  case SHOW_BOOL:
95  case SHOW_MY_BOOL:
96  return *(bool*) value ? "ON" : "OFF";
97  case SHOW_INT:
98  case SHOW_INT_NOFLUSH: // the difference lies in refresh_status()
99  return boost::lexical_cast<std::string>((long) *(uint32_t*) value);
100  case SHOW_CHAR:
101  if (value)
102  return value;
103  break;
104  case SHOW_CHAR_PTR:
105  if (*(char**) value)
106  return *(char**) value;
107  break;
108  case SHOW_UNDEF:
109  break; // Return empty string
110  case SHOW_SYS: // Cannot happen
111  default:
112  assert(0);
113  }
114  return string();
115 }
116 
117 drizzle_show_var StatusHelper::status_vars_defs[]=
118 {
119  {"Aborted_clients", (char*) offsetof(system_status_var, aborted_threads), SHOW_LONGLONG_STATUS},
120  {"Aborted_connects", (char*) offsetof(system_status_var, aborted_connects), SHOW_LONGLONG_STATUS},
121  {"Bytes_received", (char*) offsetof(system_status_var, bytes_received), SHOW_LONGLONG_STATUS},
122  {"Bytes_sent", (char*) offsetof(system_status_var, bytes_sent), SHOW_LONGLONG_STATUS},
123  {"Connections", (char*) &current_global_counters.connections, SHOW_LONGLONG},
124  {"Created_tmp_disk_tables", (char*) offsetof(system_status_var, created_tmp_disk_tables), SHOW_LONGLONG_STATUS},
125  {"Created_tmp_tables", (char*) offsetof(system_status_var, created_tmp_tables), SHOW_LONGLONG_STATUS},
126  {"Flush_commands", (char*) &g_refresh_version, SHOW_INT_NOFLUSH},
127  {"Handler_commit", (char*) offsetof(system_status_var, ha_commit_count), SHOW_LONGLONG_STATUS},
128  {"Handler_delete", (char*) offsetof(system_status_var, ha_delete_count), SHOW_LONGLONG_STATUS},
129  {"Handler_prepare", (char*) offsetof(system_status_var, ha_prepare_count), SHOW_LONGLONG_STATUS},
130  {"Handler_read_first", (char*) offsetof(system_status_var, ha_read_first_count), SHOW_LONGLONG_STATUS},
131  {"Handler_read_key", (char*) offsetof(system_status_var, ha_read_key_count), SHOW_LONGLONG_STATUS},
132  {"Handler_read_next", (char*) offsetof(system_status_var, ha_read_next_count), SHOW_LONGLONG_STATUS},
133  {"Handler_read_prev", (char*) offsetof(system_status_var, ha_read_prev_count), SHOW_LONGLONG_STATUS},
134  {"Handler_read_rnd", (char*) offsetof(system_status_var, ha_read_rnd_count), SHOW_LONGLONG_STATUS},
135  {"Handler_read_rnd_next", (char*) offsetof(system_status_var, ha_read_rnd_next_count), SHOW_LONGLONG_STATUS},
136  {"Handler_rollback", (char*) offsetof(system_status_var, ha_rollback_count), SHOW_LONGLONG_STATUS},
137  {"Handler_savepoint", (char*) offsetof(system_status_var, ha_savepoint_count), SHOW_LONGLONG_STATUS},
138  {"Handler_savepoint_rollback",(char*) offsetof(system_status_var, ha_savepoint_rollback_count), SHOW_LONGLONG_STATUS},
139  {"Handler_update", (char*) offsetof(system_status_var, ha_update_count), SHOW_LONGLONG_STATUS},
140  {"Handler_write", (char*) offsetof(system_status_var, ha_write_count), SHOW_LONGLONG_STATUS},
141  {"Last_query_cost", (char*) offsetof(system_status_var, last_query_cost), SHOW_DOUBLE_STATUS},
142  {"Max_used_connections", (char*) &current_global_counters.max_used_connections, SHOW_LONGLONG},
143  {"Questions", (char*) offsetof(system_status_var, questions), SHOW_LONGLONG_STATUS},
144  {"Select_full_join", (char*) offsetof(system_status_var, select_full_join_count), SHOW_LONGLONG_STATUS},
145  {"Select_full_range_join", (char*) offsetof(system_status_var, select_full_range_join_count), SHOW_LONGLONG_STATUS},
146  {"Select_range", (char*) offsetof(system_status_var, select_range_count), SHOW_LONGLONG_STATUS},
147  {"Select_range_check", (char*) offsetof(system_status_var, select_range_check_count), SHOW_LONGLONG_STATUS},
148  {"Select_scan", (char*) offsetof(system_status_var, select_scan_count), SHOW_LONGLONG_STATUS},
149  {"Sessions_connected", (char*) &show_connection_count_cont_new, SHOW_FUNC},
150  {"Slow_queries", (char*) offsetof(system_status_var, long_query_count), SHOW_LONGLONG_STATUS},
151  {"Sort_merge_passes", (char*) offsetof(system_status_var, filesort_merge_passes), SHOW_LONGLONG_STATUS},
152  {"Sort_range", (char*) offsetof(system_status_var, filesort_range_count), SHOW_LONGLONG_STATUS},
153  {"Sort_rows", (char*) offsetof(system_status_var, filesort_rows), SHOW_LONGLONG_STATUS},
154  {"Sort_scan", (char*) offsetof(system_status_var, filesort_scan_count), SHOW_LONGLONG_STATUS},
155  {"Table_locks_immediate", (char*) &current_global_counters.locks_immediate, SHOW_LONGLONG},
156  {"Table_locks_waited", (char*) &current_global_counters.locks_waited, SHOW_LONGLONG},
157  {"Uptime", (char*) &show_starttime_cont_new, SHOW_FUNC},
158  {"Uptime_since_flush_status", (char*) &show_flushstatustime_cont_new, SHOW_FUNC},
159  {NULL, NULL, SHOW_LONGLONG}
160 };
161 
162 } /* namespace drizzled */
Definition: vertex.h:34
TODO: Rename this file - func.h is stupid.
time_t flush_status_time
Definition: drizzled.cc:295