platform_system_core/base
Josh Gao efc9a63bde base: steal Chromium's NoDestructor.
Pillage from Chromium a wrapper type that skips destruction of its
wrapped type, to avoid problems with premature destruction of
variables with static lifetime.

Test: libbase_test on host
Change-Id: I7d4541f7b59f467b232d5c4f8250dc1ea45e28fa
2019-12-06 13:23:05 -08:00
..
include/android-base base: steal Chromium's NoDestructor. 2019-12-06 13:23:05 -08:00
.clang-format Remove extraneous .clang-format files 2017-03-14 14:06:31 -07:00
abi_compatibility.cpp Revert "Revert "Add a way to turn off unique_fd's operator int."" 2019-05-06 16:18:02 -07:00
Android.bp base: steal Chromium's NoDestructor. 2019-12-06 13:23:05 -08:00
chrono_utils.cpp base: adb.exe build error 2018-02-05 09:33:10 -08:00
chrono_utils_test.cpp Move Timer from init to libbase 2017-07-10 09:28:24 -07:00
cmsg.cpp Revert "Revert "Add a way to turn off unique_fd's operator int."" 2019-05-06 16:18:02 -07:00
cmsg_test.cpp base: add helpers for sending/receiving file descriptors. 2019-02-13 13:21:54 -08:00
CPPLINT.cfg Don't show lint errors for rvalue references. 2015-04-02 18:38:01 -07:00
endian_test.cpp Add cross-platform <android-base/endian.h>. 2017-02-24 14:03:36 -08:00
errors_test.cpp base: add SystemErrorCodeToString() function. 2016-02-01 12:18:26 -08:00
errors_unix.cpp Add header that defines strerror() 2019-08-08 23:31:36 +00:00
errors_windows.cpp base: add SystemErrorCodeToString() function. 2016-02-01 12:18:26 -08:00
expected_test.cpp Add expected<void,E> 2019-06-07 08:10:32 +09:00
file.cpp Addressing comments in 1130236. 2019-10-02 16:48:22 -07:00
file_test.cpp Addressing comments in 1130236. 2019-10-02 16:48:22 -07:00
format_benchmark.cpp Create android-base/format.h that includes fmtlib headers 2019-06-14 14:55:27 -07:00
logging.cpp Base: Explicitly set abort message on FATAL 2018-12-05 12:59:15 -08:00
logging_test.cpp Add Start/Stop/Reset to CapturedStdFd. 2018-09-04 14:29:23 -07:00
macros_test.cpp Add SIZEOF_MEMBER. 2018-04-11 12:29:50 -07:00
mapped_file.cpp [base] Make MappedFile work with OS file handles 2019-08-14 10:04:32 -07:00
mapped_file_test.cpp [base] Make MappedFile work with OS file handles 2019-08-14 10:04:32 -07:00
no_destructor_test.cpp base: steal Chromium's NoDestructor. 2019-12-06 13:23:05 -08:00
OWNERS Add OWNERS. 2017-12-07 13:30:03 -08:00
parsedouble_test.cpp Add ParseFloat (in parsedouble.h). 2018-08-08 18:17:21 -07:00
parseint_test.cpp Set errno for all error return cases. 2018-08-29 10:47:06 -07:00
parsenetaddress.cpp base: add network address parsing function from adb. 2016-01-21 20:03:33 -08:00
parsenetaddress_test.cpp base: add network address parsing function from adb. 2016-01-21 20:03:33 -08:00
process.cpp Add android::base::GetPids() function to return all pids 2019-07-01 13:55:46 -07:00
process_test.cpp Add android::base::GetPids() function to return all pids 2019-07-01 13:55:46 -07:00
properties.cpp libbase: add host properties support. 2018-05-24 18:04:31 -07:00
properties_test.cpp libbase: add host properties support. 2018-05-24 18:04:31 -07:00
README.md libbase: add a README.md covering the most frequent question. 2019-11-06 09:38:21 -08:00
result_test.cpp Add Errorf and ErrnoErrorf 2019-06-14 14:29:36 +09:00
scopeguard_test.cpp Allow android::base::ScopeGuard in STL containers 2018-03-26 13:30:09 -07:00
stringprintf.cpp Track rename of base/ to android-base/. 2015-12-04 22:00:26 -08:00
stringprintf_test.cpp Track rename of base/ to android-base/. 2015-12-04 22:00:26 -08:00
strings.cpp [base] Convert Starts/Ends/Equals string functions to string_view 2019-03-21 16:29:46 +00:00
strings_test.cpp libbase: add ConsumePrefix/ConsumeSuffix. 2019-05-03 12:49:31 -07:00
test_main.cpp Track rename of base/ to android-base/. 2015-12-04 22:00:26 -08:00
test_utils.cpp base: move TemporaryFile and TemporaryDir to android-base/file.h 2018-11-13 12:44:21 -08:00
test_utils_test.cpp Add Start/Stop/Reset to CapturedStdFd. 2018-09-04 14:29:23 -07:00
threads.cpp Move libbacktrace off cutils. 2018-07-11 13:55:07 -07:00
utf8.cpp Fix / suppress new unused warnings for mingw+clang 2017-11-29 21:37:28 -08:00
utf8_test.cpp switch to using android-base/file.h instead of android-base/test_utils.h 2018-11-14 09:35:34 -08:00

libbase

Who is this library for?

This library is a collection of convenience functions to make common tasks easier and less error-prone.

In this context, "error-prone" covers both "hard to do correctly" and "hard to do with good performance", but as a general purpose library, libbase's primary focus is on making it easier to do things easily and correctly when a compromise has to be made between "simplest API" on the one hand and "fastest implementation" on the other. Though obviously the ideal is to have both.

Should my routine be added?

The intention is to cover the 80% use cases, not be all things to all users.

If you have a routine that's really useful in your project, congratulations. But that doesn't mean it should be here rather than just in your project.

The question for libbase is "should everyone be doing this?"/"does this make everyone's code cleaner/safer?". Historically we've considered the bar for inclusion to be "are there at least three unrelated projects that would be cleaned up by doing so".

If your routine is actually something from a future C++ standard (that isn't yet in libc++), or it's widely used in another library, that helps show that there's precedent. Being able to say "so-and-so has used this API for n years" is a good way to reduce concerns about API choices.

Any other restrictions?

Unlike most Android code, code in libbase has to build for Mac and Windows too.

Code here is also expected to have good test coverage.

By its nature, it's difficult to change libbase API. It's often best to start using your routine just in your project, and let it "graduate" after you're certain that the API is solid.