test: don't use malloc/free in test-timer

test: #include missing <string.h>

test: move container_of() macro into task.h

Rename COUNTOF() to ARRAY_SIZE().

Consistent with Node, it has an ARRAY_SIZE() macro but not COUNTOF().

unix: don't retry close() on EINTR

Linux 2.6 always closes the file descriptor, even on EINTR. Retrying the close()
call isn't merely useless, it's actively harmful - the file descriptor

unix: don't retry close() on EINTR

Linux 2.6 always closes the file descriptor, even on EINTR. Retrying the close()
call isn't merely useless, it's actively harmful - the file descriptor may have
been acquired by another thread.

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windows: implement uv_loop_new+uv_loop_delete

conform to ANSI C

Merge remote-tracking branch 'origin/v0.6'

Conflicts:
src/win/util.c

unix: remove eio_set_max_poll_reqs

* added test

remove uv_thread_self

fix warnings in windows build

unix: use EVRUN_ONCE in uv_run_once()

EVRUN_NOWAIT means "poll and don't block". Use EVRUN_ONCE instead, "wait for
single event".

Merge remote branch 'origin/v0.6'

Revert "Add uv_pipe_pair for communication between threads"

Not needed. We took a different approach for isolates.

This reverts commit 5cc6090fdf738c7ae6677627f9f151c9bc16b43f.

Add uv_pipe_pair for communication between threads

This is only the Unix implementation and test.

unix: expose uv__make_socketpair, uv__make_pipe in unix/internal.h

windows: implement uv_thread_self()

Fix Windows build, uv_eio_channel is Unix only.

test: eio callbacks should run in their owning threads

unix: eio_init() is not thread-safe, run atomically

Update AUTHORS and .mailmap

unix: create separate eio result queue per loop

Makes the eio "done" callback run in the thread that submitted it. Makes it safe
to use libeio from multiple event loops.

unix: centralize loop init logic

Also fixes a bug where loops other than the main loop didn't pick the kqueue
backend, which broke the fs event watcher on Darwin and the BSDs.

Add ngx_queue_foreach() macro.

Wrap platform "thread-safe run once" APIs.