Replaces libbacktrace in CallStack. There is one small behavioral
change, the BuildId data is added to the unwinds.
Bug: 120606663
Test: All unit tests pass.
Test: Run the fuzzer for over an hour without any crashes.
Change-Id: Ic8a4247c515ce0d3cdc4d2cc15167d1948b15fa5
TEMP_FAILURE_RETRY uses typeof which is only allowed by gcc and clang
for GNU dialects. This switches to __typeof__ which is always supported.
Bug: 224644083
Test: m
Change-Id: I96d48d2f0dc5cd9ab903755d93c71c4eb80f7529
Some systems (originally only Windows) define their own
NO_ERROR macro that overlaps with the enumerator from Errors.h.
The enumerator is only defined if the macro was not.
Bug: 224644083
Test: m
Change-Id: Iee0932b5259b3bfcf6494656b27e6e7488319f5c
OkOrFail<status_t> has specialized conversions for Result<int, StatusT>
to avoid ambiguous implicit conversion sequences. Since user conversion
operators sequences can be followed by integral promotion, specializing
for integral types is necessary.
Specialize ResultError<StatusT> so calling code() returns a status_t
instead of a StatusT and message() is implemented even when not carrying
a string.
Eventually, these classes should be combined.
Add equality operators for ResultError<StatusT>.
Bug: 219580167
Test: atest Errors_test.cpp
Merged-In: I14acecfd2aef33c40e79ddb091e2f4af9291d837
Change-Id: Ifb5ed3c2d3452b10901e4aeb19368d873225d9ce
This change provide a specialization of android::base::OkOrFail for
status_t. As a result, a statement whose type is status_t can be used
with OR_RETURN.
The specialization also provides conversion operators to Result<T,
StatusT> where StatusT is a wrapper type for status_t. This allows
OR_RETURN macro to be used in newer functions that returns Result<T,
StatusT>.
Example usage:
\#include <utils/ErrorsMacros.h>
status_t legacy_inner();
status_t legacy_outer() {
OR_RETURN(legacy_inner());
return OK;
}
Result<T, StatusT> new_outer() {
OR_RETURN(legacy_inner()); // the same macro
return T{...};
}
Bug: 209929099
Test: atest libutils_test
Change-Id: I0def0e84ce3f0c4ff6d508c202bd51902dfc9618
Previously, Looper internally kept track of the requests to add fds
using the fd value itself. It used an internal sequence number
associated with each request to add a callback to avoid a situation
where a callback is unexpectedly called. However, since it used the fd
value rather than the sequence number to register events into epoll,
there was still a way where unintended hangups could occur.
This exact sequence of events caused unintended behavior in Looper:
- An fd (FD) is added to the looper.
- Looper registers FD into epoll using its FD number.
- FD is closed.
- A hangup event arrives from epoll_wait while the Looper is polling.
Looper is waiting for the lock to process the callback for FD, because
it is blocked by:
- A new fd is created and added to the looper. Since the lowest number
fd is reused, this new fd has the same value as FD.
- The poll request for Looper is now unblocked, so it looks up the
callback associated with FD to process the hangup.
- Since FD is already associated with the new callback, the new callback
is called unintentionally.
This CL uses the sequence number to register fds into epoll. That way,
when we get a hangup from epoll that is associated with a sequence
number, there is no way an unexpected callback will called.
This CL also adds a test to verify this behavior. Due to the
nondeterministic nature of this multi-thread scenario, the test verifies
this scenario repeatedly. Without the fix in Looper, the test is flaky,
but should never fail after the fix.
Bug: 195020232
Bug: 189135695
Test: atest libutils_test --rerun-until-failure
Ignore-AOSP-First: Topic CL aosp/1799831 has a merge conflict with
internal master, resolved in ag/15613419.
Change-Id: Ib4edab7f2407adaef6a1708b29bc52634f25dbb6
This reverts commit 70d9fb63e6.
Reason for revert: Outstanding usage of this method removed internally
Change-Id: Idcc00ec261aa1d97f11e47abdb08b10a37b5d20f
Test: Local build; treehugger (which I'll manually confirm runs on the appropriate targets)
String16's ctors already handle static strings, so we don't need a
specialized constructor which accepts StaticString16.
Bug: n/a
Test: libutils_test
Change-Id: I93a1ba70d743ff9c73f113d53ffba73cef6adade
String16 is still in use by AIDL compiler. Because String16 is not
noexcept-move-constructible, the C++ compiler will complain when it is
used with non-copyable types (such as ParcelFileDescriptor).
For example, when vector<Foo> is resized, copy-ctor of Foo is called,
which is not available.
parcelable Foo {
String s;
ParcelFileDescriptor[] pfds;
}
By providing noexcept move-ctor for String16, vector<Foo> can be resized
with no problem.
Btw, copy from StaticString16 is specialized for efficiency and move
from StaticString16 don't need to be different from copy.
Bug: 192136980
Test: libutils_test
Change-Id: I13744a2ceebf5781c3ef7f3a04237a6750b0db0a
Fixes a compiler warning for implicit conversion changes from signed
to unsigned which surfaced when refactoring native input libraries.
Add an explicit cast to avoid adding -Wno-sign-conversion compile
flags.
Test: b libsurfaceflinger_unittest
Change-Id: I8866aef7f09ca5173604abe18c586b68bbf12ed6
This function, ironically, is being removed.
Even more amusing, it was never "remove" anyway --- it literally did
the opposite, and removed everything *except* the range you passed to
it, and should probably have been called "keep"!
I'm looking at reimplementing much of libutils, but first I'm improving
test coverage, and literally every test I wrote for this failed. And
then when I fixed the "obvious bugs" in the implementation, I found
there actually were a couple of existing unit tests --- that mostly
served to demonstrate just how counter-intuitive this function was.
Bug: http://b/156999009
Test: treehugger
Change-Id: I41fd85f7c0988070f4039f607d2e57523d862ed9
It's not tested, and it's not used. Also remove the fuzzer which is just
wasting CPU cycles.
This gets us to 100% function coverage, 100% line coverage, and N/A
branch coverage for StopWatch.
Test: treehugger
Change-Id: Ib5e08510ef1046a6f2af3f0b8a1c317a8bb39fd4
Allow LightRefBase to be used with
ANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION, mainly for
libhwui.
Bug: N/A
Test: libutils_test
Change-Id: I251c874a80f0a069572bc51da45f8f8e74ba6f5b
Make it easier to see reference to usage documentation, as requested in
review.
Bug: 184190315
Test: libutils_test
Change-Id: If9056e35b1c7a779dd78f2b986ad10d02f25eaf3
Actually, it looks like it's only toLower() that's used, so let's remove
toUpper() separately, since it's so easy.
Test: treehugger
Change-Id: I8fae9fa513b2a34d5bd6b3f64e9305a1ee3c1ec4
I want to remove these bad ASCII-only APIs completely, but it might be
easier to remove the range variants first.
Test: treehugger
Change-Id: I4c11f959a7bd8e670708cc03281ea72e9c461ff7
This API was tested before, but it wasn't used until it is needed in
libbinder. Previously it passed the tests because wp::operator==
compares weak_ptrs which are never deleted, but it doesn't check the
value of m_ptr as well. This assumes that the RefBase implementation is
self-consistent.
Future considerations:
- add additional CHECK (perf?)
- add an additional optional CHECK?
- update all refbase tests to use an embellished form of this operator
Bug: 184190315
Test: libutils_test, boot and kill process when libbinder is using this
API
Change-Id: I66c97386d769529d5efae48e06775d4b4a344025
If you need to do a case transformation for a Unicode string, you need
to use icu4c. This only worked for ASCII, which is just silly. Luckily
it doesn't seem to be used anywhere.
Test: treehugger
Change-Id: I4a864823ec35a0b57b50909587cc3efac3f531a7
Merged-In: I4a864823ec35a0b57b50909587cc3efac3f531a7
