When backporting f8193ab3 into v0.10, a regression was introduced. Timers
with non-integer timeout could trigger a infinite recursion with 100%
cpu usage. This commit backports 93b06246 which fixes the regression.

After backporting f8193ab3, instead of using Date.now(), timers would use
Timer.now() to determine if they had expired. However, Timer.now() is
based on loop->time, which is not updated when a timer's remaining time
is > 0 and < 1. Timers would thus never timeout if their remaining time
was at some point > 0 and < 1.

With this commit, Timer.now() updates loop->time itself, and timers
always timeout eventually.

Fixes #8065 and #8068.

Callbacks in node are usually asynchronous, and should never be
sometimes synchronous, and sometimes asynchronous.

Reviewed-by: Trevor Norris <trev.norris@gmail.com>

A streams1 stream will have its falsy values such as 0, false, or ""
eaten by the upgrade to streams2, even when objectMode is enabled.

Include test for said cases.

Reviewed-by: isaacs <i@izs.me>
Reviewed-by: Trevor Norris <trev.norris@gmail.com>

Reviewed-By: Fedor Indutny <fedor@indutny.com>

* uv: Upgrade to v0.10.28

* npm: Upgrade to v1.4.21

* v8: Interrupts must not mask stack overflow.

* Revert "stream: start old-mode read in a next tick" (Fedor Indutny)

* buffer: fix sign overflow in `readUIn32BE` (Fedor Indutny)

* buffer: improve {read,write}{U}Int* methods (Nick Apperson)

* child_process: handle writeUtf8String error (Fedor Indutny)

* deps: backport 4ed5fde4f from v8 upstream (Fedor Indutny)

* deps: cherry-pick eca441b2 from OpenSSL (Fedor Indutny)

* lib: remove and restructure calls to isNaN() (cjihrig)

* module: eliminate double `getenv()` (Maciej Małecki)

* stream2: flush extant data on read of ended stream (Chris Dickinson)

* streams: remove unused require('assert') (Rod Vagg)

* timers: backport f8193ab3 (Julien Gilli)

* util.h: interface compatibility (Oguz Bastemur)

* zlib: do not crash on write after close (Fedor Indutny)

Backport of https://codereview.chromium.org/339883002

`process.env` access results in a synchronous `getenv` call. Cache the
first result instead and save one syscall.

Original commit message:

 timers: use uv_now instead of Date.now

 This saves a few calls to gettimeofday which can be expensive, and
 potentially subject to clock drift. Instead use the loop time which
 uses hrtime internally.

In addition to the backport, this commit:
 - keeps _idleStart timers' property which is still set to
   Date.now() to avoid breaking existing code that uses it, even if
   its use is discouraged.
 - adds automated tests. These tests use a specific branch of
   libfaketime that hasn't been submitted upstream yet. libfaketime
   is git cloned if needed when running automated tests.

Signed-off-by: Timothy J Fontaine <tjfontaine@gmail.com>

fix #8026

Reviewed-By: Fedor Indutny <fedor@indutny.com>

`|` operation takes precendence on `+`, which will result in
`new Buffer('ffffffff', 16).readUInt32BE(0)` returning `-1` instead of
`ffffffff`.

fix #7963

Documentation claimed it accepted a single label argument, as time and
timeEnd do, which was incorrect.

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

Expose missing constants and keep symbols on OSX.

Original commit message:

    Fix x64 MathMinMax for negative untagged int32 arguments.

    An untagged int32 has zeros in the upper half even if it is negative.
    Using cmpq to compare such numbers will incorrectly ignore the sign.

    BUG=164442
    R=mvstanton@chromium.org

    Review URL: https://chromiumcodereview.appspot.com/11665007

    git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13273

 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Pass `-force_load` to linker when linking to `libv8_base` to preserve
`v8dbg_` symbols, which are useful for debugging.

A ReadableStream with a base64 StringDecoder backed by only
one or two bytes would fail to output its partial data before
ending. This fix adds a check to see if the `read` was triggered
by an internal `flow`, and if so, empties any remaining data.

fixes #7914.

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

When handling `writeUtf8String` error, return after emitting it.
Otherwise a runtime failure can occur.

fix #7923

Switch condition order to check for null before calling isNaN().
Also remove two unnecessary calls to isNaN() that are already
covered by calls to isFinite(). This commit targets v0.10, as
opposed to #7891, which targets master (suggested by
@bnoordhuis). Closes #7840.

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

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

Documentation for console.assert incorrectly described message as a
single message, but it is a format.

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

Original commit message:

    bn_exp.c: fix x86_64-specific crash with one-word modulus.

    PR: #3397

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

V8 seems to ignore the default value for want_separate_host_toolset and
would override it at build time. Instead always explicitly set the value.

Fixes #7833

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

It appears that it is defined unconditionally on all supported unixes.

fix #7867 #7855

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

This reverts commit 00890e43

.

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

This reverts commit 885142a5

.

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

This reverts commit 2efe4ab7.

fix #7767

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

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

Increase the performance and simplify the logic of Buffer#write{U}Int*
and Buffer#read{U}Int* methods by placing the byte manipulation code
directly inline.

Also improve the speed of buffer-write benchmarks by creating a new
call directly to each method by using Function() instead of calling by
buff[fn].

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

Conflicts:
	lib/buffer.js

It's possible to construct a typed array from a buffer but the buffer
is treated as an array, not a byte array as one might expect.

Fixes #7786.

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

fixes #7793

Building MSIs for different arch's can sometimes confuse MSBuild and
Wix, isntead run the toolchain externally so we don't have to worry
about which arch cmd.exe is running as.