test: remove stale socket in ipc_send_recv_pipe

Fixes spurious test failures.

unix: remove unnecessary functions in udp.c

unix: fix up asserts in udp.c

bench: measure ticks per second of idle event loop

unix, windows: make uv_run_once() return a bool

The return value of uv_run_once() now signals if it needs to be called again.

Fixes #427.

unix: don't unlink UNIX socket on EADDRINUSE

It was a bad idea to start with...

unix: fix uv_poll CPU usage spike

Saúl Ibarra Corretgé reports that calling uv_poll_start() repeatedly results
in CPU usage spikes. Fixed by stopping the poll I/O watcher before updating

unix: fix uv_poll CPU usage spike

Saúl Ibarra Corretgé reports that calling uv_poll_start() repeatedly results
in CPU usage spikes. Fixed by stopping the poll I/O watcher before updating it.

Fixes #424.

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test: fix unused variable warning

unix: fold uv__io_cb into ev_io struct

Makes the uv__io code a little more obscure but has the advantage that
sizeof(uv__io_t) == sizeof(ev_io), i.e. the sizes of embedding handles
d

unix: fold uv__io_cb into ev_io struct

Makes the uv__io code a little more obscure but has the advantage that
sizeof(uv__io_t) == sizeof(ev_io), i.e. the sizes of embedding handles
don't change.

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unix: replace ev_io with uv__io_t

Replace ev_io usage with wrapper constructs.

This is preliminary work for the transition to a libev-less linux backend.

test: clean up test-tcp-writealot.c

Avoid unnecessary heap allocations, makes it easier to reason about correctness.

windows: set flags for uv_fs_symlink

report correct error

Disable test-callback-order

It's not correct.

Get rid of UV_HANDLE_TYPE_PRIVATE

Move shared c-ares glue code from uv-common to cares.c

windows, unix: share c-ares glue code

Make the gethostbyname benchmark more precise

test: add callback order test

Ensure that idle callbacks run before other callbacks.

unix: reactive new idle watcher implementation

The new idle watcher was temporarily disabled in 073a48d due to some semantic
incompatibilities with the previous implementation. This comm

unix: reactive new idle watcher implementation

The new idle watcher was temporarily disabled in 073a48d due to some semantic
incompatibilities with the previous implementation. This commit resolves those
issues and reactivates the new implementation.

One outstanding bug is that idle watchers can run in a different order
(relative to other handle types) than the old implementation, e.g. (timer, idle)
instead of the expected (idle, timer). This will be fixed in an upcoming commit.

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unix: remove outdated comment

fix fs_symlink_dir test

Unix: remove superfluous variable from uv_poll_start

unix: fix event loop block, prepare/check invoke

Don't block in epoll_wait() / kevent() / etc. syscall unless there are active
handles. If there are only active requests, do a non-blocki

unix: fix event loop block, prepare/check invoke

Don't block in epoll_wait() / kevent() / etc. syscall unless there are active
handles. If there are only active requests, do a non-blocking poll.

Likewise, don't run the prepare and check watchers unless there are active
handles *or* requests.

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unix: fix build on dragonfly bsd

Unbreak compilation on Dragonfly BSD, that uses kqueue, too.