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let mut wal_file = try!(OpenOptions::new().read(true).write(true).create(true).open(tree_file_path.to_owned() + ".wal")); | |
// if we have a WAL file, just replay it into the mem_tree | |
if try!(wal_file.metadata()).len() != 0 { | |
let mut buff = vec![0; node_size]; | |
while true { | |
match wal_file.read_exact(&mut buff) { | |
Ok(_) => { | |
let k = try!(decode(&buff[0..max_key_size])); | |
let v = try!(decode(&buff[max_key_size..max_value_size])); | |
mem_tree.insert(k,v); | |
}, | |
Err(e) => if e.kind() == ErrorKind::UnexpectedEof { | |
break | |
} else { | |
return Err(From::from(e)); | |
} | |
} | |
} | |
} |
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