- Group all relevant methods/states into a C++ class.
- Uses internal fields instead of the less efficient v8::External for
storing the pointer to the C++ object.
- Use AsyncWrap to allow instrumenting callback states.
PR-URL: https://github.com/nodejs/node/pull/15643
Refs: https://github.com/nodejs/node/issues/13503
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Allow the user to pass in an execution_async_id instead of always
generating one. This way the JS API can be used to pre-allocate the
execution_async_id when the JS object is instantiated, before the native
resource is created.
Also allow the new execution_async_id to be passed via asyncReset().
PR-URL: https://github.com/nodejs/node/pull/14208
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Another optional argument is about to be added to AsyncWrap. So instead
of piling them on, create a separate constructor specifically for
PromiseWrap since it's the only class that uses the "silent" argument.
PR-URL: https://github.com/nodejs/node/pull/14208
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Add a `promiseResolve()` hook.
PR-URL: https://github.com/nodejs/node/pull/15296
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Previously calling emitAfter() from _fatalException would skipt the
first asyncId. Instead use the size() of the std::stack to determine how
many times to loop and call emitAfter().
PR-URL: https://github.com/nodejs/node/pull/14914
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Adds `AsyncWrap::AddWrapMethods()` to add common methods
to a `Local<FunctionTemplate>`. Follows same pattern as
stream base.
PR-URL: https://github.com/nodejs/node/pull/14937
Reviewed-By: Anna Henningsen <anna@addaleax.net>
* Because Emit{Before,After}() will always exit the process if there's
an exception there's no need to check a return value. This simplifies
the conditions and makes {Pre,Post}CallbackExecution() unnecessary.
They have been removed and relevant code has been moved to the
respective call sites. Which are:
* PromiseHook() never needs to run domains, and without a return value
to check place the calls to Emit{Before,After}() on location.
* The logic in MakeCallback() is simplified by moving the single calls
to Emit{Before,After}() then doing a simpler conditional to check if
the domain has been disposed.
* Change Domain{Enter,Exit}() to return true if the instance has been
disposed. Makes the conditional check in MakeCallback() simpler to
reason about.
* Add UNREACHABLE() after FatalException() to make sure all error
handlers have been cleared and the process really does exit.
PR-URL: https://github.com/nodejs/node/pull/14722
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
At long last: The initial *experimental* implementation of HTTP/2.
This is an accumulation of the work that has been done in the nodejs/http2
repository, squashed down to a couple of commits. The original commit
history has been preserved in the nodejs/http2 repository.
This PR introduces the nghttp2 C library as a new dependency. This library
provides the majority of the HTTP/2 protocol implementation, with the rest
of the code here providing the mapping of the library into a usable JS API.
Within src, a handful of new node_http2_*.c and node_http2_*.h files are
introduced. These provide the internal mechanisms that interface with nghttp
and define the `process.binding('http2')` interface.
The JS API is defined within `internal/http2/*.js`.
There are two APIs provided: Core and Compat.
The Core API is HTTP/2 specific and is designed to be as minimal and as
efficient as possible.
The Compat API is intended to be as close to the existing HTTP/1 API as
possible, with some exceptions.
Tests, documentation and initial benchmarks are included.
The `http2` module is gated by a new `--expose-http2` command line flag.
When used, `require('http2')` will be exposed to users. Note that there
is an existing `http2` module on npm that would be impacted by the introduction
of this module, which is the main reason for gating this behind a flag.
When using `require('http2')` the first time, a process warning will be
emitted indicating that an experimental feature is being used.
To run the benchmarks, the `h2load` tool (part of the nghttp project) is
required: `./node benchmarks/http2/simple.js benchmarker=h2load`. Only
two benchmarks are currently available.
Additional configuration options to enable verbose debugging are provided:
```
$ ./configure --debug-http2 --debug-nghttp2
$ NODE_DEBUG=http2 ./node
```
The `--debug-http2` configuration option enables verbose debug statements
from the `src/node_http2_*` files. The `--debug-nghttp2` enables the nghttp
library's own verbose debug output. The `NODE_DEBUG=http2` enables JS-level
debug output.
The following illustrates as simple HTTP/2 server and client interaction:
(The HTTP/2 client and server support both plain text and TLS connections)
```jt client = http2.connect('http://localhost:80');
const req = client.request({ ':path': '/some/path' });
req.on('data', (chunk) => { /* do something with the data */ });
req.on('end', () => {
client.destroy();
});
// Plain text (non-TLS server)
const server = http2.createServer();
server.on('stream', (stream, requestHeaders) => {
stream.respond({ ':status': 200 });
stream.write('hello ');
stream.end('world');
});
server.listen(80);
```
```js
const http2 = require('http2');
const client = http2.connect('http://localhost');
```
Author: Anna Henningsen <anna@addaleax.net>
Author: Colin Ihrig <cjihrig@gmail.com>
Author: Daniel Bevenius <daniel.bevenius@gmail.com>
Author: James M Snell <jasnell@gmail.com>
Author: Jun Mukai
Author: Kelvin Jin
Author: Matteo Collina <matteo.collina@gmail.com>
Author: Robert Kowalski <rok@kowalski.gd>
Author: Santiago Gimeno <santiago.gimeno@gmail.com>
Author: Sebastiaan Deckers <sebdeckers83@gmail.com>
Author: Yosuke Furukawa <yosuke.furukawa@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/14239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/14549
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/14518
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
PR-URL: https://github.com/nodejs/node/pull/13142
Reviewed-By: Matthew Loring <mattloring@google.com>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
This change provides unified tracking of asynchronous promise lifecycles
for both domains and async hooks.
PR-URL: https://github.com/nodejs/node/pull/13000
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
I cannot find any usage of uv in the header and think that it can be
removed.
PR-URL: https://github.com/nodejs/node/pull/12973
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Currently the async provider type CONNECTION is used in node_crypto.h
and it might be clearer if it was named SSLCONNECTION as suggested by
addaleax.
This commit renames only the provider type as I was not sure if it was
alright to change the class Connection as well.
Refs: https://github.com/nodejs/node/pull/12967#discussion_r115978735
PR-URL: https://github.com/nodejs/node/pull/12989
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
When configured --without-ssl node_crypto.h will not be included but
async-wrap.h includes providers that are defined in node_crypto.h,
node_crypto.cc, and tls_wrap.cc:
AsyncWrap::PROVIDER_CONNECTION
AsyncWrap::PROVIDER_PBKDF2REQUEST
AsyncWrap::PROVIDER_RANDOMBYTESREQUEST
AsyncWrap::PROVIDER_TLSWRAP
These will be included as providers which will cause
test-async-wrap-getasyncid.js to fail.
This commit suggest adding a guard and exclude the providers that are
not available when configured --without-ssl
PR-URL: https://github.com/nodejs/node/pull/12967
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Fill this commit messsage with more details about the change once all
changes are rebased.
* Add lib/async_hooks.js
* Add JS methods to AsyncWrap for handling the async id stack
* Introduce AsyncReset() so that JS functions can reset the id and again
trigger the init hooks, allow AsyncWrap::Reset() to be called from JS
via asyncReset().
* Add env variable to test additional things in test/common.js
PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Changes in the native code for the upcoming async_hooks module. These
have been separated to help with review and testing.
Changes include:
* Introduce an async id stack that tracks recursive calls into async
execution contexts. For performance reasons the id stack is held as a
double* and assigned to a Float64Array. If the stack grows too large
it is then placed in it's own stack and replaced with a new double*.
This should accommodate arbitrarily large stacks.
I'm not especially happy with the complexity involved with this async
id stack, but it's also the fastest and most full proof way of
handling it that I have found.
* Add helper functions in Environment and AsyncWrap to work with the
async id stack.
* Add AsyncWrap::Reset() to allow AsyncWrap instances that have been
placed in a resource pool, instead of being released, to be
reinitialized. AsyncWrap::AsyncWrap() also now uses Reset() for
initialization.
* AsyncWrap* parent no longer needs to be passed via the constructor.
* Introduce Environment::AsyncHooks class to contain the needed native
functionality. This includes the pointer to the async id stack, and
array of v8::Eternal<v8::String>'s that hold the names of all
providers, mechanisms for storing/retrieving the trigger id, etc.
* Introduce Environment::AsyncHooks::ExecScope as a way to track the
current id and trigger id of function execution via RAII.
* If the user passes --abort-on-uncaught-exception then instead of
throwing the application will print a stack trace and abort.
PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Allow handles to retrieve their own uid's by adding a new method on the
FunctionTemplates. Implementation of these into all other classes will
come in a future commit.
Add the method AsyncWrap::GetAsyncId() to all inheriting class objects
so the uid of the handle can be retrieved from JS.
In all applicable locations, run ClearWrap() on the object holding the
pointer so that it never points to invalid memory and make sure Wrap()
is always run so the class pointer is correctly attached to the object
and can be retrieved so GetAsyncId() can be run.
In many places a class instance was not removing its own pointer from
object() in the destructor. This left an invalid pointer in the JS
object that could cause the application to segfault under certain
conditions.
Remove ClearWrap() from ReqWrap for continuity. The ReqWrap constructor
was not the one to call Wrap(), so it shouldn't be the one to call
ClearWrap().
Wrap() has been added to all constructors that inherit from AsyncWrap.
Normally it's the child most class. Except in the case of HandleWrap.
Which must be the constructor that runs Wrap() because the class pointer
is retrieved for certain calls and because other child classes have
multiple inheritance to pointer to the HandleWrap needs to be stored.
ClearWrap() has been placed in all FunctionTemplate constructors so that
no random values are returned when running getAsyncId(). ClearWrap() has
also been placed in all class destructors, except in those that use
MakeWeak() because the destructor will run during GC. Making the
object() inaccessible.
It could be simplified to where AsyncWrap sets the internal pointer,
then if an inheriting class needs one of it's own it could set it again.
But the inverse would need to be true also, where AsyncWrap then also
runs ClearWeak. Unforunately because some of the handles are cleaned up
during GC that's impossible. Also in the case of ReqWrap it runs Reset()
in the destructor, making the object() inaccessible. Meaning,
ClearWrap() must be run by the class that runs Wrap(). There's currently
no generalized way of taking care of this across all instances of
AsyncWrap.
I'd prefer that there be checks in there for these things, but haven't
found a way to place them that wouldn't be just as unreliable.
Add test that checks all resources that can run getAsyncId(). Would like
a way to enforce that any new classes that can also run getAsyncId() are
tested, but don't have one.
PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Instead of wrapping several providers into PROVIDER_CRYPTO, have them
all be named after their class. Rename other providers to also match
their class names. With the exception of Parser. Which is actually
HTTPParser.
Add PROVIDER_LENGTH to make better checks in WrapperInfo().
PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
The number of ids is limited to 2^53-1 regardless of whether an int64_t
is used or not because JS is limited to a double. So to make conversion
simpler, track ids internally as a double. This will also make life
simpler when this is eventually exposed to JS via a Float64Array.
Rename AsyncWrap::get_uid() to AsyncWrap::get_id().
PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Calling JS during GC is a no-no. So intead create a queue of all ids
that need to have their destroy() callback called and call them later.
Removed checking destroy() in test-async-wrap-uid because destroy() can
be called after the 'exit' callback.
Missing a reliable test to reproduce the issue that caused the
FATAL_ERROR.
PR-URL: https://github.com/nodejs/node/pull/9753
Fixes: https://github.com/nodejs/node/issues/8216
Fixes: https://github.com/nodejs/node/issues/9465
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This is how it's done everywhere else in core. Make it follow suit.
PR-URL: https://github.com/nodejs/node/pull/9753
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
The constructor and destructor shouldn't have been placed in the -inl.h
file from the beginning.
PR-URL: https://github.com/nodejs/node/pull/9753
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
For consistency with the newly added src/base64.h header, check that
NODE_WANT_INTERNALS is defined and set in internal headers.
PR-URL: https://github.com/nodejs/node/pull/6948
Refs: https://github.com/nodejs/node/pull/6910
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Make `HTTPParser` an instance of `AsyncWrap` and make it use
`MakeCallback`. This means that async wrap hooks will be called on
consumed TCP sockets as well as on non-consumed ones.
Additional uses of `AsyncCallbackScope` are necessary to prevent
improper state from progressing that triggers failure in the
test-http-pipeline-flood.js test. Optimally this wouldn't be necessary,
but for the time being it's the most sure way to allow operations to
proceed as they have.
Fix: https://github.com/nodejs/node/issues/4416
PR-URL: https://github.com/nodejs/node/pull/5419
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Call a user's callback to notify that the handle has been destroyed.
Only pass the id of the AsyncWrap instance since the object no longer
exists.
The object that's being destructed should never be inspected within the
callback or any time afterward.
This commit make a breaking change. The init callback will now be passed
arguments in the order of provider, id, parent.
PR-URL: https://github.com/nodejs/node/pull/3461
Reviewed-By: Fedor Indutny <fedor@indutny.com>
New instances of AsyncWrap are automatically assigned a unique id. The
value will be used in future commits to communicate additional
information via the async hooks.
While the largest value we can reliably communicate to JS is 2^53, even
if a new AsyncWrap is created every 100ns the uid won't reach its end
for 28.5 years.
PR-URL: https://github.com/nodejs/node/pull/3461
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Previous logic didn't allow parent to propagate to the init callback
properly. The fix now allows the init callback to be called and receive
the parent if:
- async wrap callbacks are enabled and parent exists
- the init callback has been called on the parent and an init callback
exists then it will be called regardless of whether async wrap
callbacks are disabled.
Change the init/pre/post callback checks to see if it has been properly
set. This allows removal of the Environment "using_asyncwrap" variable.
Pass Isolate to a TryCatch instance.
Fixes: https://github.com/nodejs/node/issues/2986
PR-URL: https://github.com/nodejs/node/pull/3216
Reviewed-By: Rod Vagg <rod@vagg.org>
Several provider ids have been removed that are no longer in use. Others
have been updated to match their class constructors.
Add test to ensure all internally listed providers are used.
PR-URL: https://github.com/nodejs/node/pull/3139
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-by: Stephen Belanger <admin@stephenbelanger.com>
Re-add the wrapper class id to AsyncWrap instances so they can be
tracked directly in a heapdump.
Previously the class id was given without setting the heap dump wrapper
class info provider. Causing a segfault when a heapdump was taken. This
has been added, and the label_ set to the given provider name so each
instance can be identified.
The id will not be set of the passed object has no internal field count.
As the class pointer cannot be retrieved from the object.
In order to properly report the allocated size of each class, the new
pure virtual method self_size() has been introduces.
PR-URL: https://github.com/nodejs/io.js/pull/1896
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Introduce a way to wrap plain-js `stream.Duplex` streams into C++
StreamBase's child class. With such method at hand it is now possible to
pass `stream.Duplex` instance as a `socket` parameter to
`tls.connect()`.
PR-URL: https://github.com/iojs/io.js/pull/926
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Fold two integral fields into one and use bitops to access/manipulate
them.
PR-URL: https://github.com/iojs/io.js/pull/667
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
This commit also breaks up req_wrap.h into req-wrap.h and req-wrap-inl.h
to work around a circular dependency issue in env.h.
PR-URL: https://github.com/iojs/io.js/pull/667
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
The copyright and license notice is already in the LICENSE file. There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
Call a user-defined callback at specific points in the lifetime of an
asynchronous event. Which are on instantiation, just before/after the
callback has been run.
**If any of these callbacks throws an exception, there is no forgiveness
or recovery. A message will be displayed and a core file dumped.**
Currently these only tie into AsyncWrap, meaning no call to a hook
callback will be made for timers or process.nextTick() events. Though
those will be added in a future commit.
Here are a few notes on how to make the hooks work:
- The "this" of all event hook callbacks is the request object.
- The zero field (kCallInitHook) of the flags object passed to
setupHooks() must be set != 0 before the init callback will be called.
- kCallInitHook only affects the calling of the init callback. If the
request object has been run through the create callback it will always
run the before/after callbacks. Regardless of kCallInitHook.
- In the init callback the property "_asyncQueue" must be attached to
the request object. e.g.
function initHook() {
this._asyncQueue = {};
}
- DO NOT inspect the properties of the object in the init callback.
Since the object is in the middle of being instantiated there are some
cases when a getter is not complete, and doing so will cause Node to
crash.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
When instantiating a new AsyncWrap allow the parent AsyncWrap to be
passed. This is useful for cases like TCP incoming connections, so the
connection can be tied to the server receiving the connection.
Because the current architecture instantiates the *Wrap inside a
v8::FunctionCallback, the parent pointer is currently wrapped inside a
new v8::External every time and passed as an argument. This adds ~80ns
to instantiation time.
A future optimization would be to add the v8::External as the data field
when creating the v8::FunctionTemplate, change the pointer just before
making the call then NULL'ing it out afterwards. This adds enough code
complexity that it will not be attempted until the current approach
demonstrates it is a bottle neck.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Expose basic hooks for AsyncWrap via the async_wrap binding. Right now
only the PROVIDER types are exposed. This is a preliminary step before
more functionality is added.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Instead of simply creating a new v8::Object to contain the connection
information, instantiate a new instance of a FunctionTemplate. This will
allow future improvements for debugging and performance probes.
Additionally, the "provider" argument in the ReqWrap constructor is no
longer optional.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
C++ won't deoptimize like JS if specific conditional branches are
sporadically met in the future. Combined with the amount of code
duplication removal and simplified maintenance complexity, it makes more
sense to merge MakeCallback and MakeDomainCallback.
Additionally, type casting in V8 before verifying what that type is will
cause V8 to abort in debug mode if that type isn't what was expected.
Fix this by first checking the v8::Value before casting.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
MakeCallback is too large a function to be inlined. Likewise, only
having header files will not allow for any part of AsyncWrap to be
exposed cleanly via NODE_MODULE_CONTEXT_AWARE_BUILTIN().
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Async Listener was the name of the user-facing JS API, and is being
completely removed. Instead low level hooks directly into the mechanism
that AL used will be introduced in a future commit.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Call a user-defined callback at specific points in the lifetime of an
asynchronous event. Which are on instantiation, just before/after the
callback has been run.
**If any of these callbacks throws an exception, there is no forgiveness
or recovery. A message will be displayed and a core file dumped.**
Currently these only tie into AsyncWrap, meaning no call to a hook
callback will be made for timers or process.nextTick() events. Though
those will be added in a future commit.
Here are a few notes on how to make the hooks work:
- The "this" of all event hook callbacks is the request object.
- The zero field (kCallInitHook) of the flags object passed to
setupHooks() must be set != 0 before the init callback will be called.
- kCallInitHook only affects the calling of the init callback. If the
request object has been run through the create callback it will always
run the before/after callbacks. Regardless of kCallInitHook.
- In the init callback the property "_asyncQueue" must be attached to
the request object. e.g.
function initHook() {
this._asyncQueue = {};
}
- DO NOT inspect the properties of the object in the init callback.
Since the object is in the middle of being instantiated there are some
cases when a getter is not complete, and doing so will cause Node to
crash.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
When instantiating a new AsyncWrap allow the parent AsyncWrap to be
passed. This is useful for cases like TCP incoming connections, so the
connection can be tied to the server receiving the connection.
Because the current architecture instantiates the *Wrap inside a
v8::FunctionCallback, the parent pointer is currently wrapped inside a
new v8::External every time and passed as an argument. This adds ~80ns
to instantiation time.
A future optimization would be to add the v8::External as the data field
when creating the v8::FunctionTemplate, change the pointer just before
making the call then NULL'ing it out afterwards. This adds enough code
complexity that it will not be attempted until the current approach
demonstrates it is a bottle neck.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Expose basic hooks for AsyncWrap via the async_wrap binding. Right now
only the PROVIDER types are exposed. This is a preliminary step before
more functionality is added.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Instead of simply creating a new v8::Object to contain the connection
information, instantiate a new instance of a FunctionTemplate. This will
allow future improvements for debugging and performance probes.
Additionally, the "provider" argument in the ReqWrap constructor is no
longer optional.
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
Timothy Gu
Trevor Norris
Andreas Madsen
Anna Henningsen
James M Snell
Tobias Nießen
Matt Loring
Daniel Bevenius
Ben Noordhuis
Michaël Zasso
Fedor Indutny
isaacs