A Simple Binary IO
==================

Discription
------
A simple raw memory data IO solution
for temporary use.

Usgae
------
If you have your own types to streaming,
write your own pack/unpack method.

int pack_utype(struct db* dbase, int sz, utype *t)
{
   int ecode = 0;
   // @todo check dbase != NULL

   struct db_ndoe *node = new_node(sz);
   
   // memcpy your data into node->data

   // insert node into dbase
   ecode = dump(dbase, node);

   return ecode;
}

int unpack_utype(...); // pls check example in example.c

// first 
struct db *dbase = createdb(123, "name.db", sz_of_node);

for(;;)
{
  ...;
  pack_utype(...);
  ...;
}

writedb(dbase);

// more, pls goto example.cpp