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GetUnusedInstanceID converted to QueryDatabase

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Arthur Ice 2014-07-06 14:24:14 -07:00 committed by Arthur Ice
parent 9abdf5f4b3
commit 4b647602b3
1 changed files with 55 additions and 48 deletions
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103
common/database.cpp
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@ -2291,60 +2291,67 @@ uint32 Database::GetTimeRemainingInstance(uint16 instance_id, bool &is_perma)
bool Database::GetUnusedInstanceID(uint16 &instance_id)
{
char errbuf[MYSQL_ERRMSG_SIZE];
char *query = 0;
MYSQL_RES *result;
MYSQL_ROW row;
char *query = nullptr;
uint32 count = RuleI(Zone, ReservedInstances);
uint32 max = 65535;
if (RunQuery(query, MakeAnyLenString(&query, "SELECT IFNULL(MAX(id),%u)+1 FROM instance_list WHERE id > %u", count,count), errbuf, &result)) {
safe_delete_array(query);
if (mysql_num_rows(result) != 0) {
row = mysql_fetch_row(result);
if(atoi(row[0]) <= max) {
count = atoi(row[0]);
mysql_free_result(result);
} else {
mysql_free_result(result);
if (RunQuery(query, MakeAnyLenString(&query, "SELECT id FROM instance_list where id > %u ORDER BY id", count), errbuf, &result)) {
safe_delete_array(query);
if (mysql_num_rows(result) != 0) {
count++;
while((row = mysql_fetch_row(result))) {
if(count < atoi(row[0])) {
instance_id = count;
mysql_free_result(result);
return true;
} else if(count > max) {
instance_id = 0;
mysql_free_result(result);
return false;
} else {
count++;
}
}
} else {
instance_id = 0;
mysql_free_result(result);
return false;
}
} else {
safe_delete_array(query);
instance_id = 0;
return false;
}
}
} else {
instance_id = 0;
mysql_free_result(result);
return false;
}
} else {
safe_delete_array(query);
auto results = QueryDatabase(query, MakeAnyLenString(&query, "SELECT IFNULL(MAX(id),%u)+1 FROM instance_list WHERE id > %u", count, count));
safe_delete_array(query);
if (!results.Success())
{
instance_id = 0;
return false;
}
if (results.RowCount() == 0)
{
instance_id = 0;
return false;
}
auto row = results.begin();
if (atoi(row[0]) <= max)
{
instance_id = atoi(row[0]);
return true;
}
results = QueryDatabase(query, MakeAnyLenString(&query, "SELECT id FROM instance_list where id > %u ORDER BY id", count));
safe_delete_array(query);
if (!results.Success())
{
instance_id = 0;
return false;
}
if (results.RowCount() == 0)
{
nstance_id = 0;
return false;
}
count++;
for (auto row = results.begin();row != results.end();++row)
{
if(count < atoi(row[0]))
{
instance_id = count;
return true;
}
if(count > max)
{
instance_id = 0;
return false;
}
count++;
}
instance_id = count;
return true;
}