* Implement async_std::sync::Condvar
Part of #217
* More rigourous detection of notification for condvar
* Use state of Waker instead of AtomicUsize to keep track of if task was
notified.
* Add test for notify_all
* Implement wait_timeout_until
And add warnings about spurious wakeups to wait and wait_timeout
* Use WakerSet for Condvar
This should also address concerns about spurious wakeups.
* Add test for wait_timeout with no lock held
* Add comments describing AwaitNotify struct
And remove an unnneded comment in a Debug implementation
Moves the point of adding error context to the net::addr module so that
we have access to the raw address input and can include it in the error
message.
This adds a new "verbose-errors" feature flag to async-std that enables
wrapping certain errors in structures with more context. As an example,
we use it in `fs::File::{open,create}` to add the given path to the
error message (something that is lacking in std to annoyance of many).
* Stream::merge does not end prematurely if one stream is delayed
* `cargo test` without features works
* Stream::merge works correctly for unfused streams
* Fix uds listener hanging on accept
UDS listener was hanging because the accept method would return
`Poll::Pending` without registering the task to be awoken in the case
when underlying unix listener returns a WouldBlock that gets converted
to None. This is a hacky fix for this case.
Should fix#248
* Test simulating uds ping-pong server/client
This one should reproduce #248 bug to prevent further regressions.
* Code review fixes