Minor memory leak fix

include/MySQL_PreparedStatement.h

@@ -103,6 +103,10 @@ class stmt_execute_metadata_t {
 		lengths = NULL;
 		size = 0;
 		stmt_id = 0;
+		if (pkt) {
+			free(pkt);
+			pkt = NULL;
+		}
 	}
 };
 
@@ -139,7 +143,6 @@ class MySQL_STMTs_meta {
 		num_entries=0;
 	}
 	~MySQL_STMTs_meta() {
-		// FIXME: destructor not there yet
 		for (std::map<uint32_t, stmt_execute_metadata_t *>::iterator it=m.begin(); it!=m.end(); ++it) {
 			stmt_execute_metadata_t *sem=it->second;
 			delete sem;

lib/MySQL_HostGroups_Manager.cpp

@@ -625,6 +625,7 @@ static void * HGCU_thread_run() {
 		}
 		free(statuses);
 		free(errs);
+		free(ret);
 	}
 }
 

lib/MySQL_PreparedStatement.cpp

@@ -485,9 +485,9 @@ uint64_t MySQL_STMTs_local_v14::compute_hash(unsigned int hostgroup, char *user,
 MySQL_STMT_Manager_v14::MySQL_STMT_Manager_v14() {
 	last_purge_time = time(NULL);
 	pthread_rwlock_init(&rwlock_, NULL);
-        map_stmt_id_to_info= std::map<uint64_t, MySQL_STMT_Global_info *>();       // map using statement id
-        map_stmt_hash_to_info = std::map<uint64_t, MySQL_STMT_Global_info *>();     // map using hashes
-        free_stmt_ids = std::stack<uint64_t> ();
+	map_stmt_id_to_info= std::map<uint64_t, MySQL_STMT_Global_info *>();       // map using statement id
+	map_stmt_hash_to_info = std::map<uint64_t, MySQL_STMT_Global_info *>();     // map using hashes
+	free_stmt_ids = std::stack<uint64_t> ();
 
 	next_statement_id =
 	    1;  // we initialize this as 1 because we 0 is not allowed