if(!usertrace_tree) {
usertrace_tree = g_tree_new_full(compare_usertraces,
NULL, free_usertrace_key, NULL);
g_hash_table_insert(tcs->usertraces,
if(!usertrace_tree) {
usertrace_tree = g_tree_new_full(compare_usertraces,
NULL, free_usertrace_key, NULL);
g_hash_table_insert(tcs->usertraces,