tree 3cd62bc3f8fbba739f9193d30e56d2ba6b41b254
parent 56f3460b37bb8d2c1f2717e7977d5803b80481d1
author Sharvil Nanavati <sharvil@google.com> 1409191540 -0700
committer Andre Eisenbach <eisenbach@google.com> 1426549890 -0700

Add a method to check for available bytes on a socket

The available bytes function shouldn't normally be required (and
if it is, the code design is probably bad and should be rethought) but
is introduced as a stop-gap until we can redesign the BTA code that
expects a priori knowledge of the number of bytes that can be read from
the socket.

This change also relaxes the requirement that on socket_register that
at least one of read_cb or write_cb must be specified.