set fd into new_fd. remove free(tmp) for reserving fname in new_fd. add 'continue' to 'unfinished' and 'resumed' setting state in new_fd.
increasing block level of parsing. add set fd and set rval of 'open'
remove duplicated memory allocation in main.c. Declare two more structs, trace_node and proc_node, for each traces of each process. proc_node includes trace_node tree.
add function exist_proc_node. modify syntax error
implement exist_proc_node
unfinished cunit test