Dispatching to the underlying thread of what could be a thread-pool can lead to data-race as the code won't be run where you expect it to.
Differential Revision: https://phabricator.services.mozilla.com/D82632
Before P1, GetCurrentThreadSerialEventTarget would have always returned the same data as NS_GetCurrentThread, making the comment incorrect Now it will properly return the running TaskQueue if any.
This change of name more clearly exposes what they are doing, as we aren't always dealing with threads directly; but a nsISerialEventTarget
Differential Revision: https://phabricator.services.mozilla.com/D80354
We have a clang-plugin check that wants to prefer `SprintfLiteral` over `snprintf`, but for some reason this wasn't caught before clang-11. I _think_ it has to do with previous versions not being able to see that `buflen` was constant, but I'm not really sure.
Differential Revision: https://phabricator.services.mozilla.com/D80021
This commit removes `test_fix_stack_using_bpsyms.py`. That test can't easily be
modified to work with `fix_stacks.py` because it relies on internal
implementation details of `fix_stack_using_bpsym.py`. The unit testing done in
the `fix-stacks` repo provides test coverage that is as good or better.
Differential Revision: https://phabricator.services.mozilla.com/D66924
--HG--
extra : moz-landing-system : lando
This was done by:
This was done by applying:
```
diff --git a/python/mozbuild/mozbuild/code-analysis/mach_commands.py b/python/mozbuild/mozbuild/code-analysis/mach_commands.py
index 789affde7bbf..fe33c4c7d4d1 100644
--- a/python/mozbuild/mozbuild/code-analysis/mach_commands.py
+++ b/python/mozbuild/mozbuild/code-analysis/mach_commands.py
@@ -2007,7 +2007,7 @@ class StaticAnalysis(MachCommandBase):
from subprocess import Popen, PIPE, check_output, CalledProcessError
diff_process = Popen(self._get_clang_format_diff_command(commit), stdout=PIPE)
- args = [sys.executable, clang_format_diff, "-p1", "-binary=%s" % clang_format]
+ args = [sys.executable, clang_format_diff, "-p1", "-binary=%s" % clang_format, '-sort-includes']
if not output_file:
args.append("-i")
```
Then running `./mach clang-format -c <commit-hash>`
Then undoing that patch.
Then running check_spidermonkey_style.py --fixup
Then running `./mach clang-format`
I had to fix four things:
* I needed to move <utility> back down in GuardObjects.h because I was hitting
obscure problems with our system include wrappers like this:
0:03.94 /usr/include/stdlib.h:550:14: error: exception specification in declaration does not match previous declaration
0:03.94 extern void *realloc (void *__ptr, size_t __size)
0:03.94 ^
0:03.94 /home/emilio/src/moz/gecko-2/obj-debug/dist/include/malloc_decls.h:53:1: note: previous declaration is here
0:03.94 MALLOC_DECL(realloc, void*, void*, size_t)
0:03.94 ^
0:03.94 /home/emilio/src/moz/gecko-2/obj-debug/dist/include/mozilla/mozalloc.h:22:32: note: expanded from macro 'MALLOC_DECL'
0:03.94 MOZ_MEMORY_API return_type name##_impl(__VA_ARGS__);
0:03.94 ^
0:03.94 <scratch space>:178:1: note: expanded from here
0:03.94 realloc_impl
0:03.94 ^
0:03.94 /home/emilio/src/moz/gecko-2/obj-debug/dist/include/mozmemory_wrap.h:142:41: note: expanded from macro 'realloc_impl'
0:03.94 #define realloc_impl mozmem_malloc_impl(realloc)
Which I really didn't feel like digging into.
* I had to restore the order of TrustOverrideUtils.h and related files in nss
because the .inc files depend on TrustOverrideUtils.h being included earlier.
* I had to add a missing include to RollingNumber.h
* Also had to partially restore include order in JsepSessionImpl.cpp to avoid
some -WError issues due to some static inline functions being defined in a
header but not used in the rest of the compilation unit.
Differential Revision: https://phabricator.services.mozilla.com/D60327
--HG--
extra : moz-landing-system : lando
rg -l 'mozilla/Move.h' | xargs sed -i 's/#include "mozilla\/Move.h"/#include <utility>/g'
Further manual fixups and cleanups to the include order incoming.
Differential Revision: https://phabricator.services.mozilla.com/D60323
--HG--
extra : moz-landing-system : lando
This removes various unused `#include "nsAutoPtr.h"` in `xpcom/`. Additionally
adds a few includes to the media stack.
Differential Revision: https://phabricator.services.mozilla.com/D58282
--HG--
extra : moz-landing-system : lando
clang's -Wmissing-prototypes option identifies global functions that can be made static (because they're only called from one compilation unit) or removed (if they're never called).
xpcom/base/Logging.cpp:85:13 [-Wmissing-prototypes] no previous prototype for function 'ToLogStr'
xpcom/base/Logging.cpp:132:13 [-Wmissing-prototypes] no previous prototype for function 'ExpandPIDMarker'
xpcom/base/LogModulePrefWatcher.cpp:37:6 [-Wmissing-prototypes] no previous prototype for function 'ResetExistingPrefs'
xpcom/base/LogModulePrefWatcher.cpp:109:6 [-Wmissing-prototypes] no previous prototype for function 'LoadExistingPrefs'
xpcom/base/nsCycleCollector.cpp:212:6 [-Wmissing-prototypes] no previous prototype for function 'SuspectUsingNurseryPurpleBuffer'
xpcom/components/nsComponentManager.cpp:421:31 [-Wmissing-prototypes] no previous prototype for function 'begin'
xpcom/components/nsComponentManager.cpp:427:31 [-Wmissing-prototypes] no previous prototype for function 'end'
xpcom/ds/Dafsa.cpp:23:6 [-Wmissing-prototypes] no previous prototype for function 'GetNextOffset'
xpcom/ds/Dafsa.cpp:55:6 [-Wmissing-prototypes] no previous prototype for function 'IsEOL'
xpcom/ds/Dafsa.cpp:62:6 [-Wmissing-prototypes] no previous prototype for function 'IsMatch'
xpcom/ds/Dafsa.cpp:70:6 [-Wmissing-prototypes] no previous prototype for function 'IsEndCharMatch'
xpcom/ds/Dafsa.cpp:78:6 [-Wmissing-prototypes] no previous prototype for function 'GetReturnValue'
xpcom/ds/Dafsa.cpp:91:5 [-Wmissing-prototypes] no previous prototype for function 'LookupString'
xpcom/io/CocoaFileUtils.mm:195:13 [-Wmissing-prototypes] no previous prototype for function 'GetQuarantinePropKey'
xpcom/io/CocoaFileUtils.mm:203:24 [-Wmissing-prototypes] no previous prototype for function 'CreateQuarantineDictionary'
xpcom/rust/gtest/bench-collections/Bench.cpp:65:11 [-Wmissing-prototypes] no previous prototype for function 'MyRand'
xpcom/rust/gtest/bench-collections/Bench.cpp:85:6 [-Wmissing-prototypes] no previous prototype for function 'Bench_Cpp_unordered_set'
xpcom/rust/gtest/bench-collections/Bench.cpp:125:6 [-Wmissing-prototypes] no previous prototype for function 'Bench_Cpp_PLDHashTable'
xpcom/rust/gtest/bench-collections/Bench.cpp:166:6 [-Wmissing-prototypes] no previous prototype for function 'Bench_Cpp_MozHashSet'
xpcom/tests/gtest/TestAtoms.cpp:114:6 [-Wmissing-prototypes] no previous prototype for function 'isStaticAtom'
xpcom/tests/gtest/TestCallTemplates.cpp:72:6 [-Wmissing-prototypes] no previous prototype for function 'JustTestingCompilation'
xpcom/tests/gtest/TestCOMPtr.cpp:87:10 [-Wmissing-prototypes] no previous prototype for function 'CreateIFoo'
xpcom/tests/gtest/TestCOMPtr.cpp:98:6 [-Wmissing-prototypes] no previous prototype for function 'set_a_IFoo'
xpcom/tests/gtest/TestCOMPtr.cpp:105:16 [-Wmissing-prototypes] no previous prototype for function 'return_a_IFoo'
xpcom/tests/gtest/TestCOMPtr.cpp:164:10 [-Wmissing-prototypes] no previous prototype for function 'CreateIBar'
xpcom/tests/gtest/TestCOMPtr.cpp:175:6 [-Wmissing-prototypes] no previous prototype for function 'AnIFooPtrPtrContext'
xpcom/tests/gtest/TestCOMPtr.cpp:177:6 [-Wmissing-prototypes] no previous prototype for function 'AVoidPtrPtrContext'
xpcom/tests/gtest/TestCOMPtr.cpp:179:6 [-Wmissing-prototypes] no previous prototype for function 'AnISupportsPtrPtrContext'
xpcom/tests/gtest/TestCOMPtr.cpp:263:6 [-Wmissing-prototypes] no previous prototype for function 'Comparison'
xpcom/tests/gtest/TestCOMPtr.cpp:298:6 [-Wmissing-prototypes] no previous prototype for function 'DontAddRef'
xpcom/tests/gtest/TestCRT.cpp:17:5 [-Wmissing-prototypes] no previous prototype for function 'sign'
xpcom/tests/gtest/TestDeadlockDetector.cpp:62:6 [-Wmissing-prototypes] no previous prototype for function 'DisableCrashReporter'
xpcom/tests/gtest/TestDeadlockDetector.cpp:74:5 [-Wmissing-prototypes] no previous prototype for function 'Sanity_Child'
xpcom/tests/gtest/TestDeadlockDetector.cpp:95:5 [-Wmissing-prototypes] no previous prototype for function 'Sanity2_Child'
xpcom/tests/gtest/TestDeadlockDetector.cpp:159:5 [-Wmissing-prototypes] no previous prototype for function 'Sanity4_Child'
xpcom/tests/gtest/TestDeadlockDetector.cpp:182:5 [-Wmissing-prototypes] no previous prototype for function 'Sanity5_Child'
xpcom/tests/gtest/TestDeadlockDetector.cpp:303:5 [-Wmissing-prototypes] no previous prototype for function 'ContentionNoDeadlock_Child'
xpcom/tests/gtest/TestHashtables.cpp:88:6 [-Wmissing-prototypes] no previous prototype for function 'testTHashtable'
xpcom/tests/gtest/TestHashtables.cpp:205:10 [-Wmissing-prototypes] no previous prototype for function 'CreateIFoo'
xpcom/tests/gtest/TestMoveString.cpp:25:6 [-Wmissing-prototypes] no previous prototype for function 'SetAsOwned'
xpcom/tests/gtest/TestMoveString.cpp:34:6 [-Wmissing-prototypes] no previous prototype for function 'ExpectTruncated'
xpcom/tests/gtest/TestMoveString.cpp:40:6 [-Wmissing-prototypes] no previous prototype for function 'ExpectNew'
xpcom/tests/gtest/TestMruCache.cpp:52:11 [-Wmissing-prototypes] no previous prototype for function 'MakeStringKey'
xpcom/tests/gtest/TestMultiplexInputStream.cpp:106:34 [-Wmissing-prototypes] no previous prototype for function 'CreateStreamHelper'
xpcom/tests/gtest/TestNonBlockingAsyncInputStream.cpp:62:10 [-Wmissing-prototypes] no previous prototype for function 'ReadSegmentsFunction'
xpcom/tests/gtest/TestNsDeque.cpp:240:6 [-Wmissing-prototypes] no previous prototype for function 'CheckIfQueueEmpty'
xpcom/tests/gtest/TestNsRefPtr.cpp:105:10 [-Wmissing-prototypes] no previous prototype for function 'CreateFoo'
xpcom/tests/gtest/TestNsRefPtr.cpp:116:6 [-Wmissing-prototypes] no previous prototype for function 'set_a_Foo'
xpcom/tests/gtest/TestNsRefPtr.cpp:123:13 [-Wmissing-prototypes] no previous prototype for function 'return_a_Foo'
xpcom/tests/gtest/TestNsRefPtr.cpp:391:6 [-Wmissing-prototypes] no previous prototype for function 'AnFooPtrPtrContext'
xpcom/tests/gtest/TestNsRefPtr.cpp:392:6 [-Wmissing-prototypes] no previous prototype for function 'AVoidPtrPtrContext'
xpcom/tests/gtest/TestPLDHash.cpp:33:6 [-Wmissing-prototypes] no previous prototype for function 'TestCrashyOperation'
xpcom/tests/gtest/TestPipes.cpp:98:10 [-Wmissing-prototypes] no previous prototype for function 'TestPipe'
xpcom/tests/gtest/TestPipes.cpp:212:10 [-Wmissing-prototypes] no previous prototype for function 'TestShortWrites'
xpcom/tests/gtest/TestPipes.cpp:354:6 [-Wmissing-prototypes] no previous prototype for function 'RunTests'
xpcom/tests/gtest/TestPLDHash.cpp:90:6 [-Wmissing-prototypes] no previous prototype for function 'InitCapacityOk_InitialLengthTooBig'
xpcom/tests/gtest/TestPLDHash.cpp:95:6 [-Wmissing-prototypes] no previous prototype for function 'InitCapacityOk_InitialEntryStoreTooBig'
xpcom/tests/gtest/TestPLDHash.cpp:102:6 [-Wmissing-prototypes] no previous prototype for function 'InitCapacityOk_EntrySizeTooBig'
xpcom/tests/gtest/TestSlicedInputStream.cpp:111:20 [-Wmissing-prototypes] no previous prototype for function 'CreateSeekableStreams'
xpcom/tests/gtest/TestSlicedInputStream.cpp:125:20 [-Wmissing-prototypes] no previous prototype for function 'CreateNonSeekableStreams'
xpcom/tests/gtest/TestStrings.cpp:471:6 [-Wmissing-prototypes] no previous prototype for function 'test_assign_helper'
xpcom/tests/gtest/TestTArray.cpp:60:22 [-Wmissing-prototypes] no previous prototype for function 'DummyArray'
xpcom/tests/gtest/TestTArray.cpp:72:22 [-Wmissing-prototypes] no previous prototype for function 'FakeHugeArray'
xpcom/tests/gtest/TestThrottledEventQueue.cpp:96:6 [-Wmissing-prototypes] no previous prototype for function 'Enqueue'
xpcom/threads/BlockingResourceBase.cpp:86:6 [-Wmissing-prototypes] no previous prototype for function 'PrintCycle'
xpcom/threads/CPUUsageWatcher.cpp:41:10 [-Wmissing-prototypes] no previous prototype for function 'GetMicroseconds'
xpcom/threads/CPUUsageWatcher.cpp:46:10 [-Wmissing-prototypes] no previous prototype for function 'GetMicroseconds'
xpcom/threads/CPUUsageWatcher.cpp:51:40 [-Wmissing-prototypes] no previous prototype for function 'GetProcessCPUStats'
xpcom/threads/CPUUsageWatcher.cpp:80:40 [-Wmissing-prototypes] no previous prototype for function 'GetGlobalCPUStats'
xpcom/threads/nsTimerImpl.cpp:196:21 [-Wmissing-prototypes] no previous prototype for function 'GetTimerFiringsLog'
Differential Revision: https://phabricator.services.mozilla.com/D23264
--HG--
extra : rebase_source : e03df033209e0a08fc263603e78bc16a09467f15
extra : source : 3beec9fbfdedf346fff85309029e7805717958ac
The NS_NewTimer* family of functions, when using a custom event target,
currently go through a path that looks something like:
auto timer = createTimer()
timer->SetTarget(target);
// call the requisite Init* function
return timer;
This setup is inefficient, because SetTarget requires the timer mutex to
be acquired. The mutex acquisition here is completely unnecessary,
because the timer hasn't yet been shared out to the wider world; we can
set the timer target without acquiring the mutex at all because we know
that no sharing is possible at this point.
This patch reworks things somewhat to make that possible.
This was done automatically replacing:
s/mozilla::Move/std::move/
s/ Move(/ std::move(/
s/(Move(/(std::move(/
Removing the 'using mozilla::Move;' lines.
And then with a few manual fixups, see the bug for the split series..
MozReview-Commit-ID: Jxze3adipUh
This patch refactors the nsThread event queue to clean it up and to make it easier to restructure. The fundamental concepts are as follows:
Each nsThread will have a pointer to a refcounted SynchronizedEventQueue. A SynchronizedEQ takes care of doing the locking and condition variable work when posting and popping events. For the actual storage of events, it delegates to an AbstractEventQueue data structure. It keeps a UniquePtr to the AbstractEventQueue that it uses for storage.
Both SynchronizedEQ and AbstractEventQueue are abstract classes. There is only one concrete implementation of SynchronizedEQ in this patch, which is called ThreadEventQueue. ThreadEventQueue uses locks and condition variables to post and pop events the same way nsThread does. It also encapsulates the functionality that DOM workers need to implement their special event loops (PushEventQueue and PopEventQueue). In later Quantum DOM work, I plan to have another SynchronizedEQ implementation for the main thread, called SchedulerEventQueue. It will have special code for the cooperatively scheduling threads in Quantum DOM.
There are two concrete implementations of AbstractEventQueue in this patch: EventQueue and PrioritizedEventQueue. EventQueue replaces the old nsEventQueue. The other AbstractEventQueue implementation is PrioritizedEventQueue, which uses multiple queues for different event priorities.
The final major piece here is ThreadEventTarget, which splits some of the code for posting events out of nsThread. Eventually, my plan is for multiple cooperatively scheduled nsThreads to be able to share a ThreadEventTarget. In this patch, though, each nsThread has its own ThreadEventTarget. The class's purpose is just to collect some related code together.
One final note: I tried to avoid virtual dispatch overhead as much as possible. Calls to SynchronizedEQ methods do use virtual dispatch, since I plan to use different implementations for different threads with Quantum DOM. But all the calls to EventQueue methods should be non-virtual. Although the methods are declared virtual, all the classes used are final and the concrete classes involved should all be known through templatization.
MozReview-Commit-ID: 9Evtr9oIJvx
This patch makes the following changes to the macros.
- Removes PROFILER_LABEL_FUNC. It's only suitable for use in functions outside
classes, due to PROFILER_FUNCTION_NAME not getting class names, and it was
mostly misused.
- Removes PROFILER_FUNCTION_NAME. It's no longer used, and __func__ is
universally available now anyway.
- Combines the first two string literal arguments of PROFILER_LABEL and
PROFILER_LABEL_DYNAMIC into a single argument. There was no good reason for
them to be separate, and it forced a '::' in the label, which isn't always
appropriate. Also, the meaning of the "name_space" argument was interpreted
in an interesting variety of ways.
- Adds an "AUTO_" prefix to PROFILER_LABEL and PROFILER_LABEL_DYNAMIC, to make
it clearer they construct RAII objects rather than just being function calls.
(I myself have screwed up the scoping because of this in the past.)
- Fills in the 'js::ProfileEntry::Category::' qualifier within the macro, so
the caller doesn't need to. This makes a *lot* more of the uses fit onto a
single line.
The patch also makes the following changes to the macro uses (beyond those
required by the changes described above).
- Fixes a bunch of labels that had gotten out of sync with the name of the
class and/or function that encloses them.
- Removes a useless PROFILER_LABEL use within a trivial scope in
EventStateManager::DispatchMouseOrPointerEvent(). It clearly wasn't serving
any useful purpose. It also serves as extra evidence that the AUTO_ prefix is
a good idea.
- Tweaks DecodePool::SyncRunIf{Preferred,Possible} so that the labelling is
done within them, instead of at their callsites, because that's a more
standard way of doing things.
--HG--
extra : rebase_source : 318d1bc6fc1425a94aacbf489dd46e4f83211de4
Bug 1295053 removed most uses of NS_METHOD and NS_CALLBACK, but one use was
unintentionally left behind (in the XPIDL parser) and another has since crept
in (in MediaDrmCDMProxy.h).
So this patch removes NS_METHOD and NS_CALLBACK. NS_METHOD_(nsresult) and
NS_CALLBACK_(nsresult, T) can still be used for the same purpose, but those
alternatives are less likely to be used unintentionally.
--HG--
extra : rebase_source : a50fc7b2a64a36d1ca9beda81bc0edb8f2ec1934
Jean-Yves Avenard
David Major
Mirko Brodesser
Nicholas Nethercote
Simon Giesecke
Emilio Cobos Álvarez
Eric Rahm
Byron Campen [:bwc]
Chris Peterson
Ryan Hunt
Ehsan Akhgari
Sylvestre Ledru
Nathan Froyd
Andi-Bogdan Postelnicu
Sebastian Hengst
Tristan Bourvon
Kris Maglione
Bill McCloskey
Ben Kelly
Andreas Farre
Jeff Walden
Wes Kocher
Andrew McCreight