This switches over to manually managing the locking in MessageChannel::Close
in order to avoid a deadlock on msvc opt builds. It has the added benefit of
avoid a superfluous lock/unlock pair.
--HG--
extra : rebase_source : f3b0ee5499bd75bc75b3d1fe44c0c7efd3063aee
This commit removes some mtime checking logic in ipdl.py that is made redundant
with make's logic to re-invoke ipdl.py when dependencies have changed.
MozReview-Commit-ID: FJuYIZv5uym
--HG--
extra : rebase_source : 5e250cd2dd57b8591db700a3d79ec36c88fa4dd4
This commit removes some mtime checking logic in ipdl.py that is made redundant
with make's logic to re-invoke ipdl.py when dependencies have changed.
MozReview-Commit-ID: FJuYIZv5uym
--HG--
extra : rebase_source : 9e11ead04bd69eb1f30160fdb15b8ac74b183f87
Instead of crashing the process inside Transition on a bad state transition,
propagate an error up the stack (and crash higher up).
MozReview-Commit-ID: JJmAeq6xSfe
--HG--
extra : rebase_source : caba8a53603f7b0ad841b657aa3d00e827e3c68c
ByteBuf is a new IPDL built in type, so I wrote a very basic test for
it, based on shmem.ipdl. It was added in bug 1379680.
MozReview-Commit-ID: 4tbnljpUqCh
--HG--
extra : rebase_source : 6f423d7d9cf132aba4498be96548684e551b8e2c
Bug 1443954 added some new syntax to using, but I noticed that there
was not very much existing test coverage, so I wrote a new test that
covers all of the possible cases.
MozReview-Commit-ID: JRgHCtXHDLZ
--HG--
extra : rebase_source : caacc05ae5b1de0841f73e5fdba4891bfc0ee4bf
Failing IPDL parser tests require that the error message is specified.
MozReview-Commit-ID: IGNTVAb5r0Q
--HG--
extra : rebase_source : 54e75ae8820f4e9ae2083b1f5382ff4151c8d59e
The IPDL parser now expects a valid message-metadata to be passed in,
even though we don't need it for parser tests. Fix this by creating
and specifying a blank one. This fixes a regression from bug 1348591.
MozReview-Commit-ID: HJ34mqBdUyP
--HG--
extra : rebase_source : d444e5346f40399f1f1cf71b3d86b6dc15a4b731
The ipc/ipdl/test/cxx/ subdirectory is only built when MOZ_IPDL_TESTS
is set, because it needs special code to be built into the
binary. ipdl/ should always be built, because it does not need special
support. This gating is already done in the ipc/ipdl/test/ directory,
so it shouldn't be done in ipc/ipdl/, because this stops us from
building it in a regular build.
MozReview-Commit-ID: Jpp0CeXEenR
--HG--
extra : rebase_source : 3dbb6a5c9b7f6ec8cbe9840bff240a63342ecd49
There are three things we want to be true:
a) If the child sends a large value and the parent can't allocate enough space
for it we use an infallible allocation so the parent dies with an OOM.
b) If a fuzzer generates (huge-length, small-data) we don't try to allocate
huge-length bytes; knowing that the read will fail.
c) No fuzzer-specific branches in the core IPC serialization code.
Finally, this makes (huge-length, small-data) consistent with other cases where
the data is potentially truncated: ReadParam returns false.
MozReview-Commit-ID: 6nDKrw5z4pt
--HG--
extra : rebase_source : 58372d29139e9545a6ed2852c7243affeab6fdb7
We can move this information into ProtocolState and save having two
virtual functions for every protocol. Moving some bits out of the
codegen'd IPC code is a nice bonus, though we keep the strange setup
where toplevel protocols have two mChannel member variables.
ProtocolName() is only used for producing error messages and annotating
crash reports. But examining actual crash reports that would have used
the result of ProtocolName() indicates that we can always tell what the
erroring protocol is due to the stack backtrace. So having this virtual
function around just provides duplicate information, and it takes up too
much space in the vtable besides. Let's get rid of it.
lower.py generates repetitious:
SetManager(...);
Register(...); // Or RegisterID.
SetIPCChannel(...);
calls, which are moderately sized, given that the above call sequence
requires virtual calls in several places. Instead of codegenning this
sequence, let's consolidate the sequence into IProtocol and change the
code generator to call into the consolidated function instead.
This function is only overriden in two places, both of which go away
after early beta is done. We shouldn't be paying for its vtable entry
after that point.
The reasoning here is the same as for the protocol register/lookup
functions: these functions are all basic functionality that should not
be overriden by subclasses.
This functionality is base functionality for top-level and non-toplevel
protocols; nobody overrides this stuff, so it's safe to move into
ProtocolState.
IProtocol, which is inherited by every generated IPDL protocol and every
concrete protocol implementation in-tree, has a number of virtual
methods that are only relevant when distinguishing between top-level
protocols (IToplevelProtocol) and managed protocols (everything else).
These virtual methods require pointers in every protocol's vtable, which
is wasteful, and it's also somewhat confusing that many methods exist
but don't really need to be overridable in any useful way.
Let's clean this up, by creating a ProtocolState class to hold methods
that solely differ between top-level protocols and everything else.
This commit does that work and moves Shmem-related methods into this
class as a proof that this can be done in a reasonable way.
