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This takes the approach of directly tying the `AddRef()` and `Release()` calls
on the underlying actor object to the lifecycle of the ActorLifecycleProxy
object, by adding another virtual `ActorAlloc()` method as the counterpart to
`ActorDealloc()`.
The changes to the methods called from C++ are relatively minimal:
1. The `SendPFooConstructor(...)` methods have the same signature, but now will
AddRef() internally (through `ActorAlloc()`), so an `do_AddRef(foo).take()`
isn't needed. Same with the `{Bind,Open}PFooEndpoint` methods.
This was done to reduce the number of invasive internal changes in the
codegen which were required to pipe a passed-in `already_AddRefed` to the
underlying `ActorLifecycleProxy` which is created by generic code.
2. The `AllocPFoo{Parent,Child}` methods have been modified to return an
`already_AddRefed` by default, and the callsites will store the result in a
`RefPtr<T>` if the type is refcounted.
3. No `DeallocPFoo...` method is called anymore. Unfortunately due to
devirtualization, it won't be an error if an unused method is still present,
though it won't be called.
Differential Revision: https://phabricator.services.mozilla.com/D39502
--HG--
extra : moz-landing-system : lando
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| app | ||
| chromium | ||
| contentproc | ||
| glue | ||
| ipdl | ||
| mscom | ||
| testshell | ||
| moz.build | ||
| pull-chromium.py | ||