The patch also changes RemoteOpenFileChild::OpenNSPRFileDesc() so that it
cannot succeed with a null fd, so that checking just the return value is
sufficient.
--HG--
extra : rebase_source : cc40bbcf2a9991edc9d3da3fb624d27db50b4996
We have a number of nsTHashtable<nsPtrHashKey<T>> instantiations, mostly
from IPDL-generated code. There's no reason in principle that all of
these instantiations couldn't share code, since they're all storing POD
entries of the same size. Let's specialize nsTHashtable for such types,
providing a thin layer over a hashtable that stores void pointers. This
change saves about 90K of space (!) on x86-64 Linux.
The standard placement new function is declared to not throw, which
means that, per spec, a null check on its result is required. There are
a number of places throughout xpcom/ where we know that we are passing
non-null pointers to placement new (and receiving them as a return
value), and we are therefore doing useless work performing these null
checks.
Therefore, we should be using an operator new overload that doesn't
require the null check. MFBT has just such an overload, so use that.
The patch also makes GetInputStream() fail if the pipe isn't initialized, just
like GetOutputStream().
--HG--
extra : rebase_source : 7391b331ffe25e0ac7ebc755f7da313dc7b5517d
For XPIDL methods, this causes MOZ_MUST_USE to be prepended to the generated
C++ function declaration.
For XPIDL attributes, this causes MOZ_MUST_USE to be prepended to the generated
C++ getter declaration and (if present) setter declaration.
--HG--
extra : rebase_source : e0b2c43235bfbc02db609076e82ca6325e4b0bff
This is the same basic idea as NS_IMPL_RELEASE_WITH_DESTROY. I need
this because I am making XPCNativeInterface refcounted, and it uses
some weird placement new stuff requiring a special function to
deallocate the object. (It does this to store an array of arbitrary
length inline, presumably for some sort of time or space reason.)
MozReview-Commit-ID: 5I7BgY6YlLl
mozilla::function involves an allocation of the FunctionImpl type, that we can
avoid rather easily in this case.
This commit is completely optional, I guess, though the code we're using
RemoveElementsBy with the previous patch is sort of hot.
MozReview-Commit-ID: 2LoQs4cB28X
The standard placement new function is declared to not throw, which
means that, per spec, a null check on its result is required. There are
a number of places throughout xpcom/ where we know that we are passing
non-null pointers to placement new (and receiving them as a return
value), and we are therefore doing useless work performing these null
checks.
Therefore, we should be using an operator new overload that doesn't
require the null check. MFBT has just such an overload, so use that.
Slightly less than half (93 / 210) of the NS_METHOD instances in the codebase
are because of the use of NS_CALLBACK in
nsI{Input,Output,UnicharInput},Stream.idl. The use of __stdcall on Win32 isn't
important for these callbacks because they are only used as arguments to
[noscript] methods.
This patch converts them to vanilla |nsresult| functions. It increases the size
of xul.dll by about ~600 bytes, which is about 0.001%.
--HG--
extra : rebase_source : c15d85298e0975fd030cd8f8f8e54501f453959b
This patch adds an assertion that makes sure that the nsCategoryManager is
destroyed after the nsMemoryReporterManager, because bad things would happen
otherwise.
Also, nsCategoryManager uses manual memory management (it's AddRef/Release are
hardwired to always return 2 and 1 respectively) so it doesn't matter if we
register it as a strong or weak memory reporter. But it's more common to use
RegisterWeakMemoryReporter when the argument is |this|, so this patch does
that.
--HG--
extra : rebase_source : 4ca33404d4c6f2b271e1ad008ea1a9a79f3ef666
David Anderson
Nicholas Nethercote
Xidorn Quan
Kan-Ru Chen
Nathan Froyd
Sebastian Hengst
Emilio Cobos Álvarez
Wes Kocher
Andrew McCreight
Ryan VanderMeulen
Phil Ringnalda
Sylvestre Ledru
Andi-Bogdan Postelnicu
Rob Wu
Towkir Ahmed
Igor
Michael Layzell
Jan de Mooij