Commit Graph

127 Commits

Author SHA1 Message Date
Steven Moreland c2dc7cd31c libutils: LightRefBase: incStrongRequireStrong
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
2021-05-04 21:42:26 +00:00
Elliott Hughes 4b7b4d6d7b Remove move dead code.
Test: treehugger
Change-Id: I6a23b19d078400dfe90329a49ae1abbcb24ef2bf
2021-04-15 15:18:54 -07:00
Elliott Hughes 450f66bd8f Merge "Remove String8::toUpper()." 2021-04-14 17:36:36 +00:00
Steven Moreland 4efe03b492 Merge "libutils: group deprecated RefBase functions" 2021-04-13 16:47:28 +00:00
Steven Moreland 8c8d361981 libutils: group deprecated RefBase functions
Make it easier to see reference to usage documentation, as requested in
review.

Bug: 184190315
Test: libutils_test
Change-Id: If9056e35b1c7a779dd78f2b986ad10d02f25eaf3
2021-04-12 23:56:07 +00:00
Elliott Hughes 9434f59c17 Remove String8::toUpper().
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
2021-04-12 13:38:31 -07:00
Elliott Hughes 561209ee66 Merge "Remove the weird range variants of String8::toLower() and String8::toUpper()." 2021-04-12 18:51:22 +00:00
Elliott Hughes a858395f91 Remove the weird range variants of String8::toLower() and String8::toUpper().
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
2021-04-09 13:06:20 -07:00
Treehugger Robot c33f57b7f9 Merge "Remove String16::makeLower()." 2021-04-09 00:35:09 +00:00
Steven Moreland dc43fb279f libutils: wp::fromExisting bugfix
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
2021-04-07 23:06:09 +00:00
Elliott Hughes 016beb8559 Remove String16::makeLower().
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
2021-04-07 22:38:20 +00:00
Steven Moreland 1d68548823 libutils: add sp::cast method
Previously, sp::sp(T*) internally had a static cast, and people
frequently wrote code like this:

    sp<A> a = ...;
    sp<B> b(a.get()); // implicit static cast

Luckily, none of the other sp constructors have this implicit cast. So,
for explicit code, rather than making those use static_cast internally,
adding an sp::cast function.

Bug: 184190315
Test: use in libbinder
Change-Id: Id205c88d03e16cf85ccb8f493ce88b4bbc65a688
2021-04-07 20:30:21 +00:00
Steven Moreland da75cef983 ANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION
In form, inspired by ANDROID_BASE_UNIQUE_FD_DISABLE_IMPLICIT_CONVERSION.

We get occasional bugs about sp double-ownership. When this flag is
enabled, we have:
- you must construct RefBase objects using sp<>::make
- you must construct wp<> objects by converting them to sp<>
- if you want to convert a raw pointer to an sp<> object (this is
  possible since the refcount is used internally, and is used commonly
  on this*), then you must use 'assertStrongRefExists' semantics which
  aborts if there is no strong ref held. That is, if a client uses
  std::make_shared and then calls a function which internally used to
  call `sp<T>(this)`, you would now call
  `sp<T>::assertStrongRefExists(this)`, and the double ownership
  problem would become a runtime error.

Bug: 184190315
Test: libutils_test
Change-Id: Ie18d3146420df1808e3733027070ec234dda4e9d
2021-04-05 17:45:18 +00:00
Steven Moreland 09b0495b47 libutils: better docs for sp<>::make
Bug: 184190315
Test: N/A
Change-Id: I56621058b9d85122b7dca3727e40c8c85595031f
2021-04-02 17:26:16 +00:00
Zhomart Mukhamejanov 45e0dc1dae Add docs to SystemClock.h
Test: n/a
Change-Id: I16a41e9b98c88270857fe2a1d6b382bfe469bca6
2021-02-23 12:14:57 -08:00
Elliott Hughes 939e43e66e Remove unused utf8_length().
Test: treehugger
Change-Id: Idcebc4ae1dcad102873d50f199f5e8745e589da4
2020-10-26 13:14:47 -07:00
Rick Yiu fa02bb9952 Revert "Add choice for changing sched policy when setting thread priority"
This reverts commit 57affbf91d.

Reason for revert: new API is no longer used

Change-Id: I97128c1d367e161aa50deaefa8b73a0f25e29af4
2020-09-27 11:21:11 +08:00
Rick Yiu 290efe38b6 Revert "Fix API for C compatibility"
This reverts commit b473061c5a.

Reason for revert: new API is no longer used

Change-Id: I2c4f9f37736faeb5d0403c2ba531c792d2531505
2020-09-27 11:20:03 +08:00
Siarhei Vishniakou 1329696700 Move PropertyMap from libutils to libinput
The input code is the only customer of PropertyMap. For easier
maintenance and eventual removal of it, move it to libinput.

Currently, the caller is responsible for managing the lifecycle of the
returned outMap when calling PropertyMap::load. However, the fact that
the function call allocates new memory is not obvious from the function
signature.

In a separate commit, I will refactor the function to return
Result<unique_ptr<>> to make it less errorprone.
In this commit, only move the files around to make code reviews easier.

Bug: 163171599
Test: atest inputflinger_tests
Change-Id: I316084886c3f09a1776fdb449d2f03d0563b66c1
2020-09-02 20:54:38 -07:00
Greg Kaiser b473061c5a Fix API for C compatibility
In https://android-review.googlesource.com/c/platform/system/core/+/1224544
when we introduced a default argument to androidSetThreadPriority(),
we broke C compatibility with this API, and with the header file
in general.

We fix this up by instead introducing a new method that takes
three arguments.  This gets this header file compiling for C again,
and keeps this particular API C compatible.

Any C++ callers of the three argument version of
androidSetThreadPriority() will need to switch to using
androidSetThreadPriorityAndPolicy().  Although since this was
a recent change, we believe there is only one such user, which
we are fixing at the same time.

Test: TreeHugger
Bug: 165009705
Merged-In: Iab0b7e6c91a8e32a17ba1b186fd0c2fe96b601e4
Change-Id: Iab0b7e6c91a8e32a17ba1b186fd0c2fe96b601e4
2020-08-24 17:29:25 +00:00
Elliott Hughes 5d0eb66590 Merge "Deprecate <utils/Debug.h>." 2020-08-17 20:36:10 +00:00
Elliott Hughes 884cedc770 Don't #include <utils/Debug.h> from <utils/Flattenable.h>.
It's not used, and shouldn't be used.

Also switch to `#pragma once`.

Test: treehugger
Change-Id: I464d3de1b0e1d536cea06362e6c73fddaad967d1
2020-08-17 10:14:16 -07:00
Elliott Hughes 832815151f Deprecate <utils/Debug.h>.
I stumbled across this because of the `#ifdef __cplusplus` inside an
unguarded `namespace`, but this whole file should be deprecated and
removed in favor of static_assert.

Test: treehugger
Change-Id: I2b65db67e694115e915f0cc9d762b0fd41a7d2af
2020-08-17 10:07:29 -07:00
Treehugger Robot 52c8422ea1 Merge "Add uptimeNanos to SystemClock" 2020-08-08 01:04:09 +00:00
Suprabh Shukla a55ef96ea7 Add uptimeNanos to SystemClock
Test: system/core/libutils/SystemClock_test.cpp

Bug: 162791194
Change-Id: I0e3ea2004146eb7442c89bb35a9f3a2171d9c4b8
2020-08-07 14:36:07 -07:00
Dan Albert ac4500e67d Update language to comply with Android's inclusive language guidance
See https://source.android.com/setup/contribute/respectful-code for reference

Bug: http://b/161896447
Test: None
Change-Id: I9e5a37a20012b2f7a8eac55701df03f7b7a9ab6c
2020-07-28 15:58:25 -07:00
Michael Wright f32317c869 Soften BitSet class comment.
std::bitset<> doesn't have exact replacements for all of the
functionality of BitSet32/64, so there are still places we want to use
these classes.

Bug: 160010896
Test: test BitSet_test.cpp
Change-Id: Ica59a138e014d82139fb6dcea0597a207faecc2a
2020-07-16 00:04:20 +00:00
Michael Wright 23e1363d55 Cast away signedness of built-ins in BitSet.
Most of the built-in functions return signed values but BitSet deals
only in unsigned values. We can safely cast these away though as they're
always indices, which can't be negative.

Bug: 160010896
Test: atest inputflinger_tests, atest libinput_tests
Change-Id: I6e0b33972fabcd41ad1c269ea0e2a07b13b33c12
2020-07-12 01:56:58 +01:00
Elliott Hughes 842e1cc17e Make systemTime() abort on bad input.
There's no CHECK in libutils, sadly.

Bug: http://b/157167405
Test: treehugger
Change-Id: I1532bf80ba7fdafad016610be3c782b547417126
2020-05-27 15:31:55 -07:00
Rick Yiu 57affbf91d Add choice for changing sched policy when setting thread priority
If the policy has been changed already, we do not need to change
it again.

Bug: 139521784
Test: functionality verified
Change-Id: I251db1d3f874896ba9be68df87209e7e514b80f9
2020-05-15 15:28:23 +00:00
Christopher Ferris 8a6dff22dc Fix mac build.
Add an inline for mmap64 to use on mac.

Bug: 156053599

Test: Builds.
Change-Id: Id02e2c2f40acea2bdef604e9b80b70a85a941927
2020-05-08 15:30:21 -07:00
Yurii Zubrytskyi f8987c393d [cleanup] Fix a clang-tidy warning
const parameters can't be moved but only get copied -
removed const

Bug: 153704006
Test: builds & boots
Change-Id: If7e2250325bf1bc498afd3539f60bcb075a1d43b
2020-04-22 16:20:29 -07:00
Steven Moreland 3c22033c72 Merge "String8: operator<<" 2020-02-27 23:18:49 +00:00
Steven Moreland 8ef1e1b535 Merge "String*: remove 'StaticLinkage' constructor" 2020-02-26 17:57:07 +00:00
Steven Moreland b1d3161b7b String8: operator<<
For parity with String16.

Bug: N/A
Test: N/A
Change-Id: I2d7d207138c96146814da31cf27a49cc310e5362
2020-02-25 17:59:54 -08:00
Steven Moreland 401d69aa94 libutils: introduce sp<T>::make
This is in preparation of doing what we did for SharedRefBase (hiding
operator new) so that clients can't accidentally construct
shared_ptr/unique_ptr or any other alternative memory management scheme
which would conflict with RefBase. You can see what ultimately happened
to SharedRefBase in frameworks/native CL
10d9ddf2e3da3ba3a425fb8396aaaec728e5fbdb.

The goal for this:
- promote use of 'sp<T>::make' over 'sp<T> .. = new T'
- make 'operator new' a private member of RefBase

Bug: 138956784
Test: libutils_test
Change-Id: I47f4d28edbf7534730c7b6fb1de748dd60f34e11
2020-02-20 17:21:27 -08:00
Steven Moreland 824418c370 Merge "String16: operator<<" 2020-02-11 22:43:26 +00:00
Steven Moreland 7a57b8a3cf String16: operator<<
Before, this was printing the pointer to the char16_t* because of an
automatic conversion. However, this is almost never intended.

Bug: N/A
Test: dumpsys_test
Change-Id: Iaafcb2145cf93028cf3271813c56b8b74948f943
2020-02-10 14:18:45 -08:00
Steven Moreland 727a6dd5f5 String*: remove 'StaticLinkage' constructor
Unneeded.

Bug: N/A
Test: N/A
Change-Id: I3ff473d1e2fec98e47abd8abb45dd36e0a808170
2020-02-10 13:56:44 -08:00
Steven Moreland e90f7f0fb3 Remove String16 header cruft.
-= forward declaration of imported class
-= empty extern decl

Bug: N/A
Test: N/A
Change-Id: I4eba90870f6d2e8d06fb49872cad51ca95da5ad9
2020-02-10 13:26:18 -08:00
Steven Moreland 306f8b5713 libutils: sp lh comparison w/ pointer
Perhaps the better question is, why have I 100s of times, typed
"ASSERT_NE(nullptr, foo)" for sp<> foo, and got a compiler error and
then change it to "foo.get()". This CL so we can stop wasting cycles
with that error.

Fixes: 147842528
Test: libutils_test
Change-Id: Id63b29d2a1ff3077201a62b69d864c5a826c47e0
2020-01-17 22:50:30 +00:00
Xin Li b091f4d40b DO NOT MERGE - Merge QQ1A.200105.003 into stage-aosp-master
Change-Id: I307003cb8d6311ed3662535a54ac8586b8a25bd0
2020-01-02 13:29:54 -08:00
Steven Moreland 243f57bb82 libutils: sp/wp: undef #defines
Seems these undefs are slightly out of sync/out of date.

Bug: N/A
Test: libutils_test
Change-Id: I884ae1ca97754a6459a2c7844264f513eecddaba
2019-12-19 16:17:33 -08:00
Hans Boehm 5341172587 Add check to sp<> raw pointer constructor
For the raw pointer constructor, check that the argument is not on the
stack. Passing a stack pointer as an sp<> parameter is dangerous,
since we will attempt to deallocate the object once the sp<> is no
longer needed. We approximate ste stack ccheck by testing whether it
is on the same page as the frame pointer.

Do the same for raw pointer assignment.

Bug: 138956784
Test: Boot AOSP
Change-Id: I2c2405be443389af7e6a713aadcb3ee1f372a85e
2019-11-26 15:32:40 -08:00
Steven Moreland 591cab8cee Add statusToString function.
For libbinder, not having these statuses printed out causes never ending
problems for developers.

Bug: 144534032
Test: libhidl_test tests this, which is on TH here
Change-Id: I02f37fb1e5b743131598ddc95ef89ebdfbdff615
2019-11-18 17:38:22 +00:00
Steven Moreland b5d3e902ff FlattenableUtils::align memsets
Bug: 141890807
Test: boot, check data is zero'd
Change-Id: I45aaeac369f4c5cf3eb44f61c233e00f870a5c79
(cherry picked from commit bf824f8fa5)
(cherry picked from commit e62a9d7669)
2019-11-15 06:15:49 +00:00
Steven Moreland 5f46923634 Trace.h: explicitly use global namespace
Imagine an AIDL file:
  package android.foo;
  interface IFoo {}

The AIDL C++ backend will generate classes like "::android::foo::IFoo".
In order to avoid ODR conflict, the NDK (Stable C) backend linking
against libbinder_ndk puts everything under the "::aidl" namespace. So,
we have "::aidl::android::foo::IFoo". When using ScopedTrace in a class
implementing a class from this backend, there is this problem.

Bug: 141828236
Test: works
Change-Id: Iafadea11788d4c011229657b4f53063bcf65f8d8
2019-11-05 17:59:46 -08:00
Steven Moreland ae9749a29a libutils: flattenable deprecation comment
This class isn't used very much and it isn't supported by AIDL. In order
to recommend new users against this and recommend an alternative, added
a comment here.

Bug: 142282873
Test: N/A

Change-Id: If7c6c9fac6c868ed6a515e658de752092d25d5f9
2019-10-07 18:14:14 -07:00
Steven Moreland 1cb99ea59b libutils: Trace.h for everything but windows
libcutils has trace implemented for host. In order to increase code
portability, opening that up for libutils Trace.h usage as well.

Bug: 124524556
Test: use Trace.h on host glinux
Change-Id: Ia873f88e7436a18f6c0f761000bf697c68ffea17
2019-09-20 11:28:00 -07:00
Elliott Hughes b6e7de2221 Remove unused big-endian cruft.
Test: builds
Change-Id: I19fef65d311923e4e6dac7307914f5fbb92b7bde
2019-09-18 08:02:10 -07:00