48
48
*buf= my_toupper(system_charset_info, *buf);
51
bool show_status_array(Session *session,
55
struct system_status_var *status_var,
56
const char *prefix, Table *table,
58
plugin::InfoSchemaTable *schema_table)
60
MY_ALIGNED_BYTE_ARRAY(buff_data, SHOW_VAR_FUNC_BUFF_SIZE, int64_t);
61
char * const buff= (char *) &buff_data;
63
/* the variable name should not be longer than 64 characters */
68
prefix_end= strncpy(name_buffer, prefix, sizeof(name_buffer)-1);
69
prefix_end+= strlen(prefix);
73
len=name_buffer + sizeof(name_buffer) - prefix_end;
75
for (; variables->name; variables++)
77
strncpy(prefix_end, variables->name, len);
78
name_buffer[sizeof(name_buffer)-1]=0; /* Safety */
81
if var->type is SHOW_FUNC, call the function.
82
Repeat as necessary, if new var is again SHOW_FUNC
84
for (var=variables; var->type == SHOW_FUNC; var= &tmp)
85
((mysql_show_var_func)((st_show_var_func_container *)var->value)->func)(&tmp, buff);
87
SHOW_TYPE show_type=var->type;
88
if (show_type == SHOW_ARRAY)
90
show_status_array(session, wild, (SHOW_VAR *) var->value, value_type,
91
status_var, name_buffer, table, false, schema_table);
95
if (!(wild && wild[0] && wild_case_compare(system_charset_info,
98
char *value=var->value;
99
const char *pos, *end; // We assign a lot of const's
100
pthread_mutex_lock(&LOCK_global_system_variables);
102
if (show_type == SHOW_SYS)
104
show_type= ((sys_var*) value)->show_type();
105
value= (char*) ((sys_var*) value)->value_ptr(session, value_type,
111
note that value may be == buff. All SHOW_xxx code below
112
should still work in this case
115
case SHOW_DOUBLE_STATUS:
116
value= ((char *) status_var + (ulong) value);
119
/* 6 is the default precision for '%f' in sprintf() */
120
end= buff + internal::my_fcvt(*(double *) value, 6, buff, NULL);
122
case SHOW_LONG_STATUS:
123
value= ((char *) status_var + (ulong) value);
126
end= internal::int10_to_str(*(long*) value, buff, 10);
128
case SHOW_LONGLONG_STATUS:
129
value= ((char *) status_var + (uint64_t) value);
132
end= internal::int64_t10_to_str(*(int64_t*) value, buff, 10);
136
stringstream ss (stringstream::in);
137
ss << *(size_t*) value;
139
string str= ss.str();
140
strncpy(buff, str.c_str(), str.length());
141
end= buff+ str.length();
145
end= internal::int64_t10_to_str((int64_t) *(ha_rows*) value, buff, 10);
148
end+= sprintf(buff,"%s", *(bool*) value ? "ON" : "OFF");
151
end+= sprintf(buff,"%s", *(bool*) value ? "ON" : "OFF");
154
case SHOW_INT_NOFLUSH: // the difference lies in refresh_status()
155
end= internal::int10_to_str((long) *(uint32_t*) value, buff, 10);
161
end= strchr(pos, '\0');
166
if (!(pos= *(char**) value))
168
end= strchr(pos, '\0');
171
case SHOW_KEY_CACHE_LONG:
172
value= (char*) dflt_key_cache + (ulong)value;
173
end= internal::int10_to_str(*(long*) value, buff, 10);
175
case SHOW_KEY_CACHE_LONGLONG:
176
value= (char*) dflt_key_cache + (ulong)value;
177
end= internal::int64_t10_to_str(*(int64_t*) value, buff, 10);
180
break; // Return empty string
181
case SHOW_SYS: // Cannot happen
186
table->restoreRecordAsDefault();
187
table->setWriteSet(0);
188
table->setWriteSet(1);
189
table->setWriteSet(2);
190
table->field[0]->store(name_buffer, strlen(name_buffer),
191
system_charset_info);
192
table->field[1]->store(pos, (uint32_t) (end - pos), system_charset_info);
193
table->field[1]->set_notnull();
195
pthread_mutex_unlock(&LOCK_global_system_variables);
197
schema_table->addRow(table->record[0], table->s->reclength);
205
51
void store_key_column_usage(Table *table,
206
52
LEX_STRING *db_name,
207
53
LEX_STRING *table_name,