Chiebot-Mirror/abseil-cpp - abseil-cpp - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Abseil Team	ce42de10fb	Export of internal Abseil changes -- 9fc37c11b9e46287acef00ee06ed9adcba54dd13 by Greg Falcon <gfalcon@google.com>: Rename absl::hash_internal::HashState to absl::hash_internal::MixingHashState. Before this change, we had two classes named HashState: absl::HashState, the public API used for type erasure, and absl::hash_internal::HashState, the internal concrete implementation ordinarily used. The internal class used to be named `CityHashState`, but we renamed it to `HashState` it when we changed underlying hash implementation to wyhash. This inadvertent naming conflict made the code much harder to read, and this change intends to undo that. PiperOrigin-RevId: 373481959 -- 4aec55ffddebd085c239352a2e20721091f719a1 by Greg Falcon <gfalcon@google.com>: Introduce absl::HashOf(), a convenience wrapper around absl::Hash that calculates hashes from the values of its arguments. PiperOrigin-RevId: 373461406 -- 86b5fd8db50bbc8bd0aa9258523527381fe0445d by Abseil Team <absl-team@google.com>: Improve speed of BlockingCounter by making its most common path lock free. With the new implementation, the fast path of BlockingCounter::DecrementCount() is only a fetch_sub operation. This is most times much more efficient than the previous implementation (full mutex lock/unlock). As a matter of fact, in most actual usecases in practice, the waiter thread is already waiting on the Wait() call when DecrementCount() is called, which makes Mutex::Unlock() take the slow path as there's a waiter thread that it might need to wake up. PiperOrigin-RevId: 373394164 -- 65c876be5eac0cd32583ff8535ede4109d39cf3f by Martijn Vels <mvels@google.com>: Move the 'sample copied cord' logic into MaybeTrackCord(), This changes move the logic for selecting if a cord should remain being sampled from Cord to CordzInfo::MaybeTrackCord, and updates the documentation for the latter method. PiperOrigin-RevId: 373363168 -- e84410bd0aada293a81dfb82656c952e209e21fb by Martijn Vels <mvels@google.com>: Add check for the first call to cordz_should_profile() for each thread. This prevents the first cord of a newly created thread to be always sampled, which is a 'bad' kind of determinism for sampling. PiperOrigin-RevId: 373229768 -- bf09c589dc099ac8f4af780bf7e609c53c27574c by Samuel Benzaquen <sbenza@google.com>: Refactor the Flags structure into an enum. This gives us more control over the representation and allows for easier merging during parsing. PiperOrigin-RevId: 373163038 -- b947b0c51083b7b6508284b5d31819596c91729e by Derek Mauro <dmauro@google.com>: Fixes warnings about shadowed variables Fixes #956 PiperOrigin-RevId: 373158133 GitOrigin-RevId: 9fc37c11b9e46287acef00ee06ed9adcba54dd13 Change-Id: I91f35699f9bf439d1a870c6493946a310afe088c	4 years ago
Abseil Team	b97a1ecda8	Export of internal Abseil changes -- 9bd9d083a21d1436816dc842a80d4339aa49a24b by Abseil Team <absl-team@google.com>: Inline Status::NewRep, pass `message` via string_view in StatusRep ctor PiperOrigin-RevId: 367641069 -- 9cebe53e8f1717f82394501fd9f4bc70d2051b33 by Benjamin Barenblat <bbaren@google.com>: Fix typo in CordRepRing error message PiperOrigin-RevId: 367481280 GitOrigin-RevId: 9bd9d083a21d1436816dc842a80d4339aa49a24b Change-Id: Ie2c51bf6f46abed5c2317ceee30bd2bb59502f8e	4 years ago
Abseil Team	dcf4899377	Export of internal Abseil changes -- 8e75347c10d85112296811be6ef35761744ad9bc by Derek Mauro <dmauro@google.com>: Big update to LTS release process * Add create_lts.py script to to the LTS modification This is simpler than copybara since very few changes are needed * Use the default installation paths instead of a versioned path. If a versioned path is needed, this is easy to change on the commandline. * Make the integration test use the LTS transformed version * Test both static and dynamic linking (fixes pkg-config dynamic linking) PiperOrigin-RevId: 363566934 -- e00e971a2de3138861f5e1900201c9cc7788f714 by Laramie Leavitt <lar@google.com>: Add a non-compile test to absl::BitGenRef for temporaries. PiperOrigin-RevId: 363437284 -- 3685644ec115d99789de32aceb76c32a00756fea by Derek Mauro <dmauro@google.com>: Make OSS code consistent with internal code by using the forward declaration of absl::Status that contains ABSL_MUST_USE_RESULT. PiperOrigin-RevId: 363426906 -- b85fec142c3aa3f632fa985f9f8f73a253819723 by Evan Brown <ezb@google.com>: Move raw_hash_set::infoz_ into raw_hash_set::settings_. This reduces the size of raw_hash_sets by alignof(size_t) bytes when hashtablez is disabled. PiperOrigin-RevId: 363034264 -- c6fde3b17e5845191eb8b2bfc1760c8bfb9573ff by Mark Barolak <mbar@google.com>: Internal change PiperOrigin-RevId: 362990378 -- 81713cf964905b43d1cbe32ce5fed97539029625 by Abseil Team <absl-team@google.com>: Fix typo in comment (execeptions -> exceptions). PiperOrigin-RevId: 362946191 -- 3ee92ca470feca44da417b03ee45a915c6eb5155 by Abseil Team <absl-team@google.com>: Add absl::FindAndReportLeaks and routes it to the corresponding __lsan_do_recoverable_leak_check. PiperOrigin-RevId: 362622199 -- b95b7194b20e02c20d72289fbc79a0d35b82e256 by Abseil Team <absl-team@google.com>: Add `kWithEverything` to StatusToStringMode PiperOrigin-RevId: 362595218 -- 0a960d96a0014eab7e1c55b479269450ed8e98d7 by Abseil Team <absl-team@google.com>: Accept e.g. ".__uniq" as a valid clone name. Further, bring the implementation on par with libiberty's demangler grammar. Clang introduced option -funique-internal-linkage-names that adds the suffix ".__uniq.[0-9]+" to internal linkage functions to give them a globally unique identifier. The suffix was designed to work with existing demanglers which do recognize a "_" along with the alphanumeric string. This change enhances the demangler to allow "_" with the alphanumeric string. Please refer to libiberty's cp-demangle.c where function d_clone_suffix implements the demangling of clone suffixes : 1. '_' is accepted as a valid character with the alphanumeric sequence. 2. The alphanumberic sequence is optional. 3. The digit sequence is optional. PiperOrigin-RevId: 362557420 -- 2ac5ea212c150afd2f58025a5cab8c45d16949c6 by Abseil Team <absl-team@google.com>: Change variable name 'slots' to 'slot_count' to avoid name-clash with Qt builds. PiperOrigin-RevId: 362556289 -- 934f0f409c9c548716a46363d6e243406fad4028 by Mark Barolak <mbar@google.com>: Clarify the comment on ABSL_CACHELINE_SIZE to indicate that the macro definition itself shouldn't change, but rather that call sites should change when possible. This addresses the request for improved documentation in https://github.com/abseil/abseil-cpp/pull/842. PiperOrigin-RevId: 362354288 GitOrigin-RevId: 8e75347c10d85112296811be6ef35761744ad9bc Change-Id: I33ec8561d8d645c3353e9d2dd447501d0e1825a7	4 years ago
Abseil Team	4fd9a1ec50	Export of internal Abseil changes -- 03700706d80f0939e2b5b8c02a326f045b643730 by Abseil Team <absl-team@google.com>: Reduced latency and code-size of some InlinedVector methods: 1. Simpler fast path for push_back/emplace_back. 2. Do not inline slow path of push-back/emplace_back. 3. Simplify resize implementation. Performance: A simple benchmark that does the following per iteration: ``` push_back on an InlinedVector<int64> push_back on an InlinedVector<bool> ``` Sees iteration time go from 4.3ns to 2.8ns and code size shrink from 1129 bytes to 175 bytes. PiperOrigin-RevId: 343335635 -- 16f74277a9e8bf228c164b053da8b8098f76de62 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 343332753 -- 886b6d5d0244783d309e34f03c21710f411e3cb3 by Abseil Team <absl-team@google.com>: Optimize `Status::Status`: When creating a status, we currently create an empty struct first, then assign fields. This is suboptimal: https://screenshot.googleplex.com/5HqDuFBKUEqrVgy. Relevant Benchmarks: ``` BM_StatusCopyError_Deep/threads:1 26.9ns ±13% 21.2ns ±16% -21.46% (p=0.000 n=15+15) BM_StatusCopyError_Deep/threads:2 32.0ns ±30% 25.6ns ±37% -20.17% (p=0.004 n=15+14) BM_StatusCopyError_Deep/threads:4 37.4ns ±84% 30.6ns ±58% -18.26% (p=0.029 n=15+15) BM_StatusCopyError_Deep/threads:8 47.2ns ±33% 33.5ns ±56% -28.91% (p=0.000 n=15+14) ``` PiperOrigin-RevId: 343303312 -- 2f9d945654292e8e52cad410fa41dae794cff42c by Abseil Team <absl-team@google.com>: Set SOVERSION for the installed libraries PiperOrigin-RevId: 343287682 -- 600bbfffe91cfbdc60b43cdad5619258298d0b0d by Abseil Team <absl-team@google.com>: Fix a typo in a comment (than -> that) PiperOrigin-RevId: 343187724 -- 310c82cd97b3f1f0d1ee93a0ee2b0aee828b2a93 by Abseil Team <absl-team@google.com>: Simplify unaligned memory access functions. The #ifdef to produce calls to __sanitizer_unaligned_load16 etc were needed in past versions of this code, when we were lying to the compiler about the alignment of the loads/stores, by using a reinterpret_cast. However, a year ago, absl switched to simply use memcpy. Sanitizers support this correctly by default, nothing extra is required. PiperOrigin-RevId: 343159883 -- bdf6fcf99180c371fda6ba8af82fd44656e372fa by Gennadiy Rozental <rogeeff@google.com>: Migrate usage flags to global variables instead of modeling them as Abseil Flags. Also introduce new semantic for --help=substring command line argument. PiperOrigin-RevId: 343019883 GitOrigin-RevId: 03700706d80f0939e2b5b8c02a326f045b643730 Change-Id: I4ad40dfa9606f8b8bfb2d91fd09e327105311bfb	4 years ago
Abseil Team	c6b3f2cf58	Export of internal Abseil changes -- 0c8282d75798c77733eee6167870bcc6acc0bfc1 by Evan Brown <ezb@google.com>: Provide mutable access to the key in node handles using std::launder when compiled with C++17 or later. Also, document why we can't provide mutable access to the key without C++17. Note: we use Policy::mutable_key() because btree already uses Policy::key() internally to get const key access, and we want to avoid calling std::launder unless we need mutable access to the key. PiperOrigin-RevId: 326519000 -- 8018d0c3044400f0a731b0d2d00b606742c98818 by Xiaoyi Zhang <zhangxy@google.com>: Move `Status` internal symbols from the public header into an internal header file. PiperOrigin-RevId: 326471847 -- 87a7644864ba7c003b0611898aaba1b71c840376 by Abseil Team <absl-team@google.com>: Avoid a costly divide (the division accounts for 10% of the time spent in the function). When the division is signed, the compiler has to generate a div. When it is unsigned, it can generate a shift: https://godbolt.org/z/vGfTv4. As per the test above the div, we know that the value is unsigned. PiperOrigin-RevId: 326453275 GitOrigin-RevId: 0c8282d75798c77733eee6167870bcc6acc0bfc1 Change-Id: I0a953558358055ab3dc6a533d8930698509b1195	4 years ago
Abseil Team	768eb2ca28	Export of internal Abseil changes -- f012012ef78234a6a4585321b67d7b7c92ebc266 by Laramie Leavitt <lar@google.com>: Slight restructuring of absl/random/internal randen implementation. Convert round-keys.inc into randen_round_keys.cc file. Consistently use a 128-bit pointer type for internal method parameters. This allows simpler pointer arithmetic in C++ & permits removal of some constants and casts. Remove some redundancy in comments & constexpr variables. Specifically, all references to Randen algorithm parameters use RandenTraits; duplication in RandenSlow removed. PiperOrigin-RevId: 312190313 -- dc8b42e054046741e9ed65335bfdface997c6063 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 312167304 -- f13d248fafaf206492c1362c3574031aea3abaf7 by Matthew Brown <matthewbr@google.com>: Cleanup StrFormat extensions a little. PiperOrigin-RevId: 312166336 -- 9d9117589667afe2332bb7ad42bc967ca7c54502 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 312105213 -- 9a12b9b3aa0e59b8ee6cf9408ed0029045543a9b by Abseil Team <absl-team@google.com>: Complete IGNORE_TYPE macro renaming. PiperOrigin-RevId: 311999699 -- 64756f20d61021d999bd0d4c15e9ad3857382f57 by Gennadiy Rozental <rogeeff@google.com>: Switch to fixed bytes specific default value. This fixes the Abseil Flags for big endian platforms. PiperOrigin-RevId: 311844448 -- bdbe6b5b29791dbc3816ada1828458b3010ff1e9 by Laramie Leavitt <lar@google.com>: Change many distribution tests to use pcg_engine as a deterministic source of entropy. It's reasonable to test that the BitGen itself has good entropy, however when testing the cross product of all random distributions x all the architecture variations x all submitted changes results in a large number of tests. In order to account for these failures while still using good entropy requires that our allowed sigma need to account for all of these independent tests. Our current sigma values are too restrictive, and we see a lot of failures, so we have to either relax the sigma values or convert some of the statistical tests to use deterministic values. This changelist does the latter. PiperOrigin-RevId: 311840096 GitOrigin-RevId: f012012ef78234a6a4585321b67d7b7c92ebc266 Change-Id: Ic84886f38ff30d7d72c126e9b63c9a61eb729a1a	5 years ago