Bug 1583109 introduced new function templates StringJoin and StringJoinAppend.
These are now used to replace several custom loops across the codebase that
implement string-joining algorithms to simplify the code.
Differential Revision: https://phabricator.services.mozilla.com/D98750
Bug 1583109 introduced new function templates StringJoin and StringJoinAppend.
These are now used to replace several custom loops across the codebase that
implement string-joining algorithms to simplify the code.
Differential Revision: https://phabricator.services.mozilla.com/D98750
* We add a new function to `mscom/Utils.h`: `DiagnosticNameForIID`. Its
purpose is to generate a friendly name for an interface, given an IID.
For special interfaces internal to COM, we add our own descriptive strings.
If the interface does not have a description, we simply convert the IID
to string format using GUIDToString.
* We modify `ProfilerMarkerChannelHook` to include the additional diagnostic
information for IIDs in its markers.
* Since each marker is now differentiated by IID, we remove the restriction
that we only use markers for the outermost COM call. In particular, this
assumption doesn't hold for asynchronous COM calls, so we would be losing
data in the case where an async call was pending while the main thread was
still making COM calls on other interfaces.
* There isn't really an effective way to distinguish between sync and
async calls at the channel hook layer. I'm thinking about how we could
perhaps modify `AsyncInvoker` to help mark these, but it's a bit messy.
I'm going to postpone that to future work.
* Other potential future work is expanding the number of interfaces for which
we have frendly names. I could see us annotating our various COM interfaces
in a way that we could automagically generate human-readable descriptions for
those interfaces.
Differential Revision: https://phabricator.services.mozilla.com/D97042
I realized that calling `mscom::IsProxy` is kind of redundant when we already
need to query for `ICallFactory`.
We still allow `aIsProxy` as an optional constructor argument, but if not
present then we go straight to `QueryInterface(IID_ICallFactory)`.
Differential Revision: https://phabricator.services.mozilla.com/D97047
I need this for some changes I want to make to Win32 file pickers.
* We add an event-driven variant to `mscom::AsyncInvoker`. When the async call
invokes `ISynchronize::Signal`, we post an event to the specified event
target (or implicitly to the main thread).
* For this to work, the async call needs to temporarily retain a reference to
itself, otherwise the async call object is destroyed and the in-flight call
is cancelled. This reference is stored in an "outer runnable" which is
responsible for executing the inner completion runnable, and then dropping
the self-reference.
* We only run the completion runnable upon *successful* initiation of the async
call. If there was a failure, we return that code immediately to the caller.
Failures also clear the reference to the completion runnable.
* If we could not obtain an async interface and must run synchronously, then
we run the completion runnable immediately after a successful synchronous
invocation.
Differential Revision: https://phabricator.services.mozilla.com/D95808
We add new DLL registration code. This is a rather generic function that
permits the following:
* Registering multiple `CLSID`s for the same DLL;
* Registering an optional `AppID`. Registering an `AppID` allows us to use a
`DllSurrogate` to host the DLL out-of-process using Windows' built-in
`dllhost.exe`. I'll be using this feature in a future bug.
* Supporting all available threading modelsl;
* Capable of registering either inproc servers or inproc handlers;
* Using the transaction-based registry API so that we can cleanly rollback
during registration if any part(s) of it fail.
Differential Revision: https://phabricator.services.mozilla.com/D95606
We add new DLL registration code. This is a rather generic function that
permits the following:
* Registering multiple `CLSID`s for the same DLL;
* Registering an optional `AppID`. Registering an `AppID` allows us to use a
`DllSurrogate` to host the DLL out-of-process using Windows' built-in
`dllhost.exe`. I'll be using this feature in a future bug.
* Supporting all available threading modelsl;
* Capable of registering either inproc servers or inproc handlers;
* Using the transaction-based registry API so that we can cleanly rollback
during registration if any part(s) of it fail.
Differential Revision: https://phabricator.services.mozilla.com/D95606
Some cleanup in our smart pointer stuff: Using `move` semantics lets us avoid
needing to hack around our static analysis.
Depends on D95599
Differential Revision: https://phabricator.services.mozilla.com/D95600
Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly.
To produce this patch I did all of the following:
1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions.
2. Run ./mach lint --linter black --fix
3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks.
4. Make some ad-hoc manual updates to `testing/marionette/client/setup.py`, `testing/marionette/harness/setup.py`, and `testing/firefox-ui/harness/setup.py`, which have hard-coded regexes that break after the reformat.
5. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023).
# ignore-this-changeset
Differential Revision: https://phabricator.services.mozilla.com/D94045
Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly.
To produce this patch I did all of the following:
1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions.
2. Run ./mach lint --linter black --fix
3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks.
4. Make some ad-hoc manual updates to `testing/marionette/client/setup.py`, `testing/marionette/harness/setup.py`, and `testing/firefox-ui/harness/setup.py`, which have hard-coded regexes that break after the reformat.
5. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023).
# ignore-this-changeset
Differential Revision: https://phabricator.services.mozilla.com/D94045
Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly.
To produce this patch I did all of the following:
1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions.
2. Run ./mach lint --linter black --fix
3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks.
4. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023).
# ignore-this-changeset
Differential Revision: https://phabricator.services.mozilla.com/D94045
In most situations, JSONWriter users already know string lengths (either directly, or through `nsCString` and friends), so we should keep this information through JSONWriter and not recompute it again.
This also allows using JSONWriter with sub-strings (e.g., from a bigger buffer), without having to create null-terminated strings.
Public JSONWriter functions have overloads that accept literal strings.
Differential Revision: https://phabricator.services.mozilla.com/D86192
Previously, we only did this when IsCallerExternalProcess() returned false.
There are three reasons for changing this:
1. There seem to be cases where IsCallerExternalProcess() returns true even when marshaling for a COM query in the MTA.
2. After bug 1627084, we pre-build a11y handler payloads on the main thread for bulk fetch calls. That will marshal interceptors. However, IsCallerExternalProcess() can't work in that case because it's not running on the thread on which the COM call is being handled.
3. If MSHLFLAGS_NOPING is used, Release calls from remote clients are never sent to the server. So, as soon as we use NOPING for our parent process, we're already going to leak references, even if we don't use NOPING for external callers. Put another way, as soon as we use NOPING for one caller, we may as well use it for all callers because COM pinging will never release the object anyway.
Differential Revision: https://phabricator.services.mozilla.com/D84778
To intercept COM IPC, we provide an `IChannelHook` interface to
`CoRegisterChannelHook`, which gives us notifications about COM IPC that we can
use to insert profiler markers. Note that `IChannelHook` is not documented on
MSDN, however it is defined in the SDK header files.
When the profiler is available, once XPCOM is up:
* If the profiler is active, we immediately register the channel hook;
* Otherwise we register an observer and hold off on registering the hook until
the profiler is started, at which point we register the hook and remove the
observer.
Differential Revision: https://phabricator.services.mozilla.com/D80053
To intercept COM IPC, we provide an `IChannelHook` interface to
`CoRegisterChannelHook`, which gives us notifications about COM IPC that we can
use to insert profiler markers. Note that `IChannelHook` is not documented on
MSDN, however it is defined in the SDK header files.
When the profiler is available, once XPCOM is up:
* If the profiler is active, we immediately register the channel hook;
* Otherwise we register an observer and hold off on registering the hook until
the profiler is started, at which point we register the hook and remove the
observer.
Differential Revision: https://phabricator.services.mozilla.com/D80053
When an Interceptor is marshaled for an external (non-chrome) process caller, we do not provide a handler and thus don't call HandlerProvider::WriteHandlerPayload.
However, GetMarshalSizeMax previously called HandlerProvider::GetPayloadSize even for external process callers.
For a11y's handlerProvider, we must build the payload to get the size.
This is wasteful in this case, since we're just going to throw it away.
Differential Revision: https://phabricator.services.mozilla.com/D72796
Simon Giesecke
Csoregi Natalia
Gerald Squelart
Razvan Maries
Mihai Alexandru Michis
Aaron Klotz
Dorel Luca
Cristina Coroiu
Ricky Stewart
Bogdan Tara
Noemi Erli
James Teh
Chris Fronk