44
45
StateTool::Generator::Generator(Field **arg, sql_var_t option_arg,
45
drizzle_show_var *variables_args,
46
drizzle_show_var *variables_args)
47
48
plugin::TableFunction::Generator(arg),
48
49
option_type(option_arg),
49
has_status(status_arg),
50
50
variables(variables_args)
55
pthread_rwlock_rdlock(&LOCK_system_variables_hash);
57
else if (option_type == OPT_GLOBAL && has_status)
60
pthread_mutex_lock(&LOCK_status);
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calc_sum_of_all_status(&status);
65
Session *session= current_session;
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status_ptr= &session->status_var;
70
54
StateTool::Generator::~Generator()
74
pthread_rwlock_unlock(&LOCK_system_variables_hash);
76
else if (option_type == OPT_GLOBAL)
78
pthread_mutex_unlock(&LOCK_status);
82
58
bool StateTool::Generator::populate()
118
extern drizzled::KEY_CACHE dflt_key_cache_var, *dflt_key_cache;
119
93
void StateTool::Generator::fill(const std::string &name, char *value, SHOW_TYPE show_type)
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Session *session= current_session;
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struct system_status_var *status_var;
123
95
std::ostringstream oss;
126
96
std::string return_value;
128
/* Scope represents if the status should be session or global */
129
status_var= getStatus();
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pthread_mutex_lock(&LOCK_global_system_variables);
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LOCK_global_system_variables.lock();
133
100
if (show_type == SHOW_SYS)
135
102
show_type= ((sys_var*) value)->show_type();
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value= (char*) ((sys_var*) value)->value_ptr(session, option_type,
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value= (char*) ((sys_var*) value)->value_ptr(&(getSession()), option_type,
141
note that value may be == buff. All SHOW_xxx code below
142
should still work in this case
145
case SHOW_DOUBLE_STATUS:
146
value= ((char *) status_var + (ulong) value);
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oss << *(double *) value;
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return_value= oss.str();
153
case SHOW_LONG_STATUS:
154
value= ((char *) status_var + (ulong) value);
157
oss << *(int64_t*) value;
158
return_value= oss.str();
160
case SHOW_LONGLONG_STATUS:
161
value= ((char *) status_var + (uint64_t) value);
164
oss << *(int64_t*) value;
165
return_value= oss.str();
168
oss << *(size_t*) value;
169
return_value= oss.str();
172
oss << (int64_t) *(ha_rows*) value;
173
return_value= oss.str();
177
return_value= *(bool*) value ? "ON" : "OFF";
180
case SHOW_INT_NOFLUSH: // the difference lies in refresh_status()
181
oss << (long) *(uint32_t*) value;
182
return_value= oss.str();
193
return_value= *(char**) value;
107
return_value= StatusHelper::fillHelper(NULL, value, show_type);
197
case SHOW_KEY_CACHE_LONG:
198
value= (char*) dflt_key_cache + (unsigned long)value;
199
oss << *(long*) value;
200
return_value= oss.str();
202
case SHOW_KEY_CACHE_LONGLONG:
203
value= (char*) dflt_key_cache + (unsigned long)value;
204
oss << *(int64_t*) value;
205
return_value= oss.str();
208
break; // Return empty string
209
case SHOW_SYS: // Cannot happen
214
pthread_mutex_unlock(&LOCK_global_system_variables);
109
LOCK_global_system_variables.unlock();
216
111
if (return_value.length())
217
112
push(return_value);