readInto method
Reads into an existing List<int> from the file. If start
is present,
the bytes will be filled into buffer
from at index start
, otherwise
index 0. If end
is present, the end
- start
bytes will be read into
buffer
, otherwise up to buffer.length
. If end
== start
nothing
happens.
Returns a Future<int>
that completes with the number of bytes read.
Implementation
Future<int> readInto(List<int> buffer, [int start = 0, int end]);