lukechilds/node - node - Gitea: Git with a cup of tea

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Commit Graph

Author	SHA1	Message	Date
Mike Kaufman	35a526c1d4	http2,async-wrap: introduce AliasedBuffer class This change introduces an AliasedBuffer class and updates asytnc-wrap and http2 to use this class. A common technique to optimize performance is to create a native buffer and then map that native buffer to user space via JS array. The runtime can efficiently write to the native buffer without having to route though JS, and the values being written are accessible from user space. While efficient, this technique allows modifications to user space memory w/out going through JS type system APIs, effectively bypassing any monitoring the JS VM has in place to track program state modifications. The result is that monitors have an incorrect view of prorgram state. The AliasedBuffer class provides a future placeholder where this technique can be used, but writes can still be observed. To achieve this, the node-chakra-core fork will add in appropriate tracking logic in the AliasedBuffer's SetValue() method. Going forward, this class can evolve to support more sophisticated mechanisms if necessary. PR-URL: https://github.com/nodejs/node/pull/15077 Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>	7 years ago
Daniel Bevenius	ec53921d2e	src: make AtExit callback's per Environment This commit attempts to address one of the TODOs in https://github.com/nodejs/node/issues/4641 regarding making the AtExit callback's per environment, instead of the current global. bnoordhuis provided a few options for solving this, and one was to use a thread-local which is what this commit attempts to do. PR-URL: https://github.com/nodejs/node/pull/9163 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>	8 years ago
Daniel Bevenius	6a09a69ec9	build: enable cctest to use generated objects This commit tries to make it simpler to add unit tests (cctest) for code that needs to test node core funtionality but that might not be appropriate as an addon or a JavaScript test. An example of this could be adding functionality targeted for situations when Node itself is embedded. Currently it was not as easy, or efficient, as one would have hoped to add such tests. The object output directories vary for different operating systems which we need to link to so that we don't have an additional compilation step. PR-URL: https://github.com/nodejs/node/pull/11956 Ref: https://github.com/nodejs/node/pull/9163 Reviewed-By: James M Snell <jasnell@gmail.com>	8 years ago

Author

SHA1

Message

Date

Mike Kaufman

35a526c1d4

http2,async-wrap: introduce AliasedBuffer class

This change introduces an AliasedBuffer class and updates asytnc-wrap
and http2 to use this class.

A common technique to optimize performance is to create a native buffer
and then map that native buffer to user space via JS array.  The runtime
can efficiently write to the native buffer without having to route
though JS, and the values being written are accessible from user space.

While efficient, this technique allows modifications to user
space memory w/out going through JS type system APIs, effectively
bypassing any monitoring the JS VM has in place to track program state
modifications.  The result is that monitors have an incorrect view
of prorgram state.

The AliasedBuffer class provides a future placeholder where this
technique can be used, but writes can still be observed.  To achieve
this, the node-chakra-core fork will add in appropriate tracking logic
in the AliasedBuffer's SetValue() method. Going forward, this class can
evolve to support more sophisticated mechanisms if necessary.

PR-URL: https://github.com/nodejs/node/pull/15077
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

7 years ago

Daniel Bevenius

ec53921d2e

src: make AtExit callback's per Environment

This commit attempts to address one of the TODOs in
https://github.com/nodejs/node/issues/4641 regarding making the
AtExit callback's per environment, instead of the current global.

bnoordhuis provided a few options for solving this, and one was to
use a thread-local which is what this commit attempts to do.

PR-URL: https://github.com/nodejs/node/pull/9163
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>

8 years ago

Daniel Bevenius

6a09a69ec9

build: enable cctest to use generated objects

This commit tries to make it simpler to add unit tests (cctest) for
code that needs to test node core funtionality but that might not be
appropriate as an addon or a JavaScript test. An example of this could
be adding functionality targeted for situations when Node itself is
embedded.

Currently it was not as easy, or efficient, as one would have hoped to
add such tests. The object output directories vary for different
operating systems which we need to link to so that we don't have an
additional compilation step.

PR-URL: https://github.com/nodejs/node/pull/11956
Ref: https://github.com/nodejs/node/pull/9163
Reviewed-By: James M Snell <jasnell@gmail.com>

8 years ago

3 Commits (6f1caadb85f70bb902c078d9b7a96e3c4b36b31f)