unix: allow uv_getnameinfo to be cancelled

unix: return system error on EAI_SYSTEM

unix: don't run i/o callbacks after prepare callbacks

Run them after timers, like Windows does.

Closes #1317

windows: fix handling closed socket while poll handle is closing

fixes #1278

(backport from master for v0.10 branch)

unix, windows: return system error on EAI_SYSTEM

windows: fix PYTHON environment variable usage

- (README.md) The PYTHON environment variable should point to python.exe
not the python directory.

- (vcvars.bat) The PYTHON envir

windows: fix PYTHON environment variable usage

- (README.md) The PYTHON environment variable should point to python.exe
not the python directory.

- (vcvars.bat) The PYTHON environment variable should be quoted on
expansion in case there's spaces in the path.

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doc: remove requirement for signing the CLA

test: fix EPIPE race in spawn_closed_process_io

The just created stdin should not be closed by a child process before
writing to it, otherwise EPIPE happens.

test: make barrier test more rigorous

A correct barriers implementation blocks in uv_barrier_destroy() until
the last thread returns from uv_barrier_wait() so make the test more
rigo

test: make barrier test more rigorous

A correct barriers implementation blocks in uv_barrier_destroy() until
the last thread returns from uv_barrier_wait() so make the test more
rigorous by destroying the barrier straight away instead of first
joining the worker thread.

Signed-off-by: Fedor Indutny <fedor@indutny.com>

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include: document barrier functions

Add some basic doc comments to the uv_barrier_*() functions and document
the "serializer" return value from the previous commit.

Signed-off-b

include: document barrier functions

Add some basic doc comments to the uv_barrier_*() functions and document
the "serializer" return value from the previous commit.

Signed-off-by: Fedor Indutny <fedor@indutny.com>

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unix, windows: make uv_barrier_wait() return bool

Make uv_barrier_wait() return a boolean value indicating whether this
thread was the "serializer".

From `man pthread_barrier_wa

unix, windows: make uv_barrier_wait() return bool

Make uv_barrier_wait() return a boolean value indicating whether this
thread was the "serializer".

From `man pthread_barrier_wait`:

Upon successful completion, the pthread_barrier_wait() function
shall return PTHREAD_BARRIER_SERIAL_THREAD for a single (arbitrary)
thread synchronized at the barrier and zero for each of the other
threads.

Exposing that information from libuv is useful because it can make
cleanup significantly easier:

if (uv_barrier_wait(&barrier) > 0)
uv_barrier_destroy(&barrier);

Signed-off-by: Fedor Indutny <fedor@indutny.com>

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windows: fix handling closed socket while poll handle is closing

fixes #1278

doc: clarify return value when UV_RUN_NOWAIT is used

Signed-off-by: Saúl Ibarra Corretgé <saghul@gmail.com>

unix, windows: fix parsing scoped IPv6 addresses

Signed-off-by: Saúl Ibarra Corretgé <saghul@gmail.com>

unix, windows: define UV__INET/6_ADDRSTRLEN constants

windows: remove redundant code in uv_tcp_write

The overlapped structure is reset twice, it is non necessary.

Signed-off-by: Fedor Indutny <fedor@indutny.com>

heap: fix `heap_remove()`

Remove should shuffle items in both directions, not just down. It is
required, because `max` node could be not the actual maximum value in
the tree.

heap: fix `heap_remove()`

Remove should shuffle items in both directions, not just down. It is
required, because `max` node could be not the actual maximum value in
the tree.

fix #1267

Signed-off-by: Fedor Indutny <fedor@indutny.com>

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unix, windows: getnameinfo implementation

Closes #852

unix, windows: avoid error in uv_fs_event_stop

For consistency with other handle types, if stop is called while the
handle wasn't started yet, it's a no-op.

unix, windows: uv_dlerror const argument

win: open_named_pipe const argument

win: minor coding style cleanup

process: adjust quote_cmd_arg for empty arguments

adjust quote_cmd_arg so that empty command line
arguments are double quoted instead of skipped

doc: refer to README.md to find out more information about tests

Reason for this change is because 'make test' command does not work.

Signed-off-by: Luka Perkov <luka.perkov@sartura

doc: refer to README.md to find out more information about tests

Reason for this change is because 'make test' command does not work.

Signed-off-by: Luka Perkov <luka.perkov@sartura.hr>

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unix: fix uv__open_cloexec usage

It returns the fd or the negated errno.