windows: map ERROR_DIRECTORY to UV_ENOENT

windows: use UV_ECANCELED to signal canceled requests

This used to be UV_EINTR, but that's not an appropriate error code in
this situation.

windows: map WSANO_DATA to UV_ENOENT

This improves uv_getaddrinfo error reporting.

windows: don't inhibit reparse behavior when non-symlink is encountered

This fixes the issue that a mount point would be treated as a
symlink, but readlink would subsequently return an N

windows: don't inhibit reparse behavior when non-symlink is encountered

This fixes the issue that a mount point would be treated as a
symlink, but readlink would subsequently return an NT namespaced
path that is unusable for many purposes.

This also pre-emptively fixes the problems that would arise when
an user has a reparse point whose tag is neither
IO_REPARSE_TAG_MOUNT_POINT nor IO_REPARSE_TAG_SYMLINK.

Finally uv_lstat() will now return the correct length in st_size.
Previously the length was computed incorrectly for relative
symlinks, and those that had non-ascii characters in their target.

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win: map ERROR_PRIVILEGE_NOT_HELD to UV_EPERM

windows: map ERROR_INVALID_HANDLE to UV_EBADF

unix, windows: rework reference counting scheme

This commit changes how the event loop determines if it needs to stay alive.

Previously, an internal counter was increased whenever a

unix, windows: rework reference counting scheme

This commit changes how the event loop determines if it needs to stay alive.

Previously, an internal counter was increased whenever a handle got created
and decreased again when the handle was closed.

While conceptually simple, it turned out hard to work with: you often want
to keep the event loop alive only if the handle is actually doing something.
Stopped or inactive handles were a frequent source of hanging event loops.

That's why this commit changes the reference counting scheme to a model where
a handle only references the event loop when it's active. 'Active' means
different things for different handle types, e.g.:

* timers: ticking
* sockets: reading, writing or listening
* processes: always active (for now, subject to change)
* idle, check, prepare: only active when started

This commit also changes how the uv_ref() and uv_unref() functions work: they
now operate on the level of individual handles, not the whole event loop.

The Windows implementation was done by Bert Belder.

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windows: map ERROR_WRITE_PROTECT to UV_EROFS

err: handle EIO errors on win/unix

Windows: map ERROR_NOT_SAME_DEVICE to UV_EXDEV

Windows: add mappings for UV_ENOENT

Windows: backport pipe-connect-to-file fixes from master

Conflicts:

src/win/pipe.c


commit e53ab6675ba12d97ad6d93c9913a473ba5172617
Author: Bert Belder <bertbel

Windows: backport pipe-connect-to-file fixes from master

Conflicts:

src/win/pipe.c


commit e53ab6675ba12d97ad6d93c9913a473ba5172617
Author: Bert Belder <bertbelder@gmail.com>
Date: Fri Mar 9 17:04:03 2012 +0100

Windows: report UV_ENOTSOCK when we opened a file instead of a pipe

Makes the pipe_connect_to_file test pass on Windows.

commit 8cbbfbe4c6489868470a7e410f80d4729f4091bf
Author: Igor Zinkovsky <igorzi@microsoft.com>
Date: Thu Mar 1 14:32:59 2012 -0800

test: make pipe_connect_to_file succeed with ECONNREFUSED

commit 6bbccf1fe0e000fd73e945368466cd27291483e3
Author: Igor Zinkovsky <igorzi@microsoft.com>
Date: Thu Mar 1 12:11:12 2012 -0800

windows: return UV_ENOTSOCK when doing uv_pipe_connect to a file

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Add UV_ENOSPC and mappings to it

Closes GH-337

Windows: make sure that shutdown_cb is always called

This patch changes how uv-win uses the UV_SHUTTING and UV_SHUT flags.
UV_SHUT is now only used for tcp handles to track whether shutd

Windows: make sure that shutdown_cb is always called

This patch changes how uv-win uses the UV_SHUTTING and UV_SHUT flags.
UV_SHUT is now only used for tcp handles to track whether shutdown() has
actually been called. UV_SHUTTING has the more generic meaning of
"no longer readable". It would be good to replace it by an actual
UV_READABLE flag in the future.

This makes the shutdown_close_tcp and shutdown_close_pipe tests pass on
windows.

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Map EBUSY and ENOTEMPTY errors

Windows: add error mappings that map to EPIPE

win: add ERROR_FILENAME_EXCED_RANGE mapping, fix fs_file_nametoolong test

Clean up error handling in win/fs.c, add some error mappings

windows: map WSAETIMEDOUT to UV_ETIMEDOUT

win: map `ERROR_CANT_RESOLVE_FILENAME` to `UV_ENAMETOOLONG`

windows: map ERROR_ACCESS_DENIED to UV_EPERM

Windows: add error mapping for WSAENOBUFS

Win: add mapping for ERROR_ACCESS_DENIED

Shared uv_strerror

Alternative errno strategy