- e2f6b8ac647271815b4fed2991f405524dd762c3 Release cctz microbenchmarks. by Alex Strelnikov <strel@google.com>

- 924ba2a3f9fca695d73c6bf491d20669e2b96b8e Changed RawPtr to use std::addressof() instead of operato... by Abseil Team <absl-team@google.com>
  - e8cf67f9fa74d4c5632da35547025ad2301c6819 Import of CCTZ from GitHub. by Alex Strelnikov <strel@google.com>
  - 2ece8a96611afcddd7b91e0197dadb896248250c Abandon ".inc" files in favor of ".h" headers. by Jorg Brown <jorg@google.com>
  - 37f5ed5da4058f90fb3e6a2733fce5b1fd0aaedf Add exception safety tests for absl::optional<T> by Abseil Team <absl-team@google.com>
  - 337f995a866b8f905f64ca6b271b5fec8f248a60 Update WORKSPACE to grab specific commits of dependencies... by Alex Strelnikov <strel@google.com>
  - 93e5b134607a554993387ad913e6c1621606004b Release Charmap microbenchmark. by Alex Strelnikov <strel@google.com>
  - 95c2e29b6d93ec1334484ee37d91f63101c45307 Release OStringStream microbenchmarks. by Alex Strelnikov <strel@google.com>
  - 250f51839ed26dd1e6b658d35aa291413e5f4825 Internal change by Greg Falcon <gfalcon@google.com>
  - ce34900fa3d1a95a8446bc943cdd801fac95be25 Improve compatibility of cctz cc_test targets for portabl... by Shaindel Schwartz <shaindel@google.com>
  - ce7e31dbf2c1ee93c79aae5b7dc7c603cb4babcf Improve portability of cc_tests. (Mark more tests that ca... by Abseil Team <absl-team@google.com>
  - dfcd4e455923703c1a1dcd523c5f915f7990fa2a Accept strings with custom allocators as arguments to abs... by Greg Falcon <gfalcon@google.com>
  - 2946b41ed3d5b8b5a8dc11182e443cf1ab6e3bde Link against benchmark_main instead of using BENCHMARK_MA... by Alex Strelnikov <strel@google.com>
  - f09de9e03bf8edd363069c4b352d8009423f531c Adds link to doc about the formats allowed by SimpleAtof(... by Greg Miller <jgm@google.com>
  - 59b0977e7a308e0800277886cf60226b2cc426a1 Simplify the HideMask() calculation so that it doesn't us... by Jorg Brown <jorg@google.com>

GitOrigin-RevId: e2f6b8ac647271815b4fed2991f405524dd762c3
Change-Id: Ib9c8547ed7fe217fad6cb3ab1362e96181aa5cfa
This commit is contained in:
Abseil Team 2018-05-31 12:26:35 -07:00 committed by Mark Barolak
parent 99477fa9f1
commit 7aacab8ae0
37 changed files with 1879 additions and 349 deletions

View file

@ -13,20 +13,20 @@ http_archive(
# GoogleTest/GoogleMock framework. Used by most unit-tests.
http_archive(
name = "com_google_googletest",
urls = ["https://github.com/google/googletest/archive/master.zip"],
strip_prefix = "googletest-master",
urls = ["https://github.com/google/googletest/archive/4e4df226fc197c0dda6e37f5c8c3845ca1e73a49.zip"],
strip_prefix = "googletest-4e4df226fc197c0dda6e37f5c8c3845ca1e73a49",
)
# Google benchmark.
http_archive(
name = "com_github_google_benchmark",
urls = ["https://github.com/google/benchmark/archive/master.zip"],
strip_prefix = "benchmark-master",
urls = ["https://github.com/google/benchmark/archive/16703ff83c1ae6d53e5155df3bb3ab0bc96083be.zip"],
strip_prefix = "benchmark-16703ff83c1ae6d53e5155df3bb3ab0bc96083be",
)
# RE2 regular-expression framework. Used by some unit-tests.
http_archive(
name = "com_googlesource_code_re2",
urls = ["https://github.com/google/re2/archive/master.zip"],
strip_prefix = "re2-master",
urls = ["https://github.com/google/re2/archive/6cf8ccd82dbaab2668e9b13596c68183c9ecd13f.zip"],
strip_prefix = "re2-6cf8ccd82dbaab2668e9b13596c68183c9ecd13f",
)

View file

@ -49,7 +49,7 @@ cc_test(
deps = [
":algorithm",
"//absl/base:core_headers",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)

View file

@ -124,5 +124,3 @@ BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, EightBits)
->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
} // namespace
BENCHMARK_MAIN();

View file

@ -392,11 +392,6 @@ cc_test(
"//absl:windows": [],
"//conditions:default": ["-pthread"],
}),
tags = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
],
deps = [":malloc_internal"],
)
@ -426,6 +421,6 @@ cc_test(
deps = [
":base",
"//absl/synchronization",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)

View file

@ -23,9 +23,7 @@ namespace base_internal {
// Arbitrary value with high bits set. Xor'ing with it is unlikely
// to map one valid pointer to another valid pointer.
constexpr uintptr_t HideMask() {
static_assert(sizeof(uintptr_t) == 4 || sizeof(uintptr_t) == 8,
"uintptr_t must be 32 or 64 bits");
return sizeof(uintptr_t) == 8 ? 0xF03A5F7BF03A5F7BULL : 0xF03A5F7BUL;
return (uintptr_t{0xF03A5F7BU} << (sizeof(uintptr_t) - 4) * 8) | 0xF03A5F7BU;
}
// Hide a pointer from the leak checker. For internal use only.

View file

@ -36,5 +36,3 @@ void BM_UnsafeCurrentThreadIdentity(benchmark::State& state) {
BENCHMARK(BM_UnsafeCurrentThreadIdentity);
} // namespace
BENCHMARK_MAIN();

View file

@ -42,11 +42,6 @@ cc_test(
name = "fixed_array_test",
srcs = ["fixed_array_test.cc"],
copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
tags = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
],
deps = [
":fixed_array",
"//absl/base:exception_testing",
@ -74,7 +69,7 @@ cc_test(
tags = ["benchmark"],
deps = [
":fixed_array",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -131,7 +126,7 @@ cc_test(
":inlined_vector",
"//absl/base",
"//absl/strings",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)

View file

@ -64,5 +64,3 @@ BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 256)->Range(0, 1 << 16);
BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 65536)->Range(0, 1 << 16);
} // namespace
BENCHMARK_MAIN();

View file

@ -372,5 +372,3 @@ void BM_StdVectorEmpty(benchmark::State& state) {
BENCHMARK(BM_StdVectorEmpty);
} // namespace
BENCHMARK_MAIN();

View file

@ -179,9 +179,9 @@ typename memory_internal::MakeUniqueResult<T>::invalid make_unique(
// useful within templates that need to handle a complement of raw pointers,
// `std::nullptr_t`, and smart pointers.
template <typename T>
auto RawPtr(T&& ptr) -> decltype(&*ptr) {
auto RawPtr(T&& ptr) -> decltype(std::addressof(*ptr)) {
// ptr is a forwarding reference to support Ts with non-const operators.
return (ptr != nullptr) ? &*ptr : nullptr;
return (ptr != nullptr) ? std::addressof(*ptr) : nullptr;
}
inline std::nullptr_t RawPtr(std::nullptr_t) { return nullptr; }

View file

@ -111,7 +111,7 @@ cc_test(
size = "small",
srcs = [
"escaping_test.cc",
"internal/escaping_test_common.inc",
"internal/escaping_test_common.h",
],
copts = ABSL_TEST_COPTS,
visibility = ["//visibility:private"],
@ -127,7 +127,7 @@ cc_test(
name = "escaping_benchmark",
srcs = [
"escaping_benchmark.cc",
"internal/escaping_test_common.inc",
"internal/escaping_test_common.h",
],
copts = ABSL_TEST_COPTS,
tags = ["benchmark"],
@ -135,7 +135,7 @@ cc_test(
deps = [
":strings",
"//absl/base",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -199,7 +199,7 @@ cc_test(
":strings",
"//absl/base",
"//absl/base:core_headers",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -240,7 +240,7 @@ cc_test(
deps = [
":strings",
"//absl/base",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -278,7 +278,7 @@ cc_test(
deps = [
":strings",
"//absl/base",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -294,6 +294,18 @@ cc_test(
],
)
cc_test(
name = "ostringstream_benchmark",
srcs = ["internal/ostringstream_benchmark.cc"],
copts = ABSL_TEST_COPTS,
tags = ["benchmark"],
visibility = ["//visibility:private"],
deps = [
":internal",
"@com_github_google_benchmark//:benchmark_main",
],
)
cc_test(
name = "resize_uninitialized_test",
size = "small",
@ -333,7 +345,7 @@ cc_test(
deps = [
":strings",
"//absl/memory",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -358,7 +370,7 @@ cc_test(
visibility = ["//visibility:private"],
deps = [
":strings",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -366,7 +378,7 @@ cc_test(
name = "numbers_test",
size = "small",
srcs = [
"internal/numbers_test_common.inc",
"internal/numbers_test_common.h",
"numbers_test.cc",
],
copts = ABSL_TEST_COPTS,
@ -411,3 +423,14 @@ cc_test(
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "char_map_benchmark",
srcs = ["internal/char_map_benchmark.cc"],
copts = ABSL_TEST_COPTS,
tags = ["benchmark"],
deps = [
":internal",
"@com_github_google_benchmark//:benchmark_main",
],
)

View file

@ -20,7 +20,7 @@
#include "benchmark/benchmark.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/strings/internal/escaping_test_common.inc"
#include "absl/strings/internal/escaping_test_common.h"
namespace {
@ -39,7 +39,7 @@ BENCHMARK(BM_CUnescapeHexString);
void BM_WebSafeBase64Escape_string(benchmark::State& state) {
std::string raw;
for (int i = 0; i < 10; ++i) {
for (const auto& test_set : base64_strings) {
for (const auto& test_set : absl::strings_internal::base64_strings()) {
raw += std::string(test_set.plaintext);
}
}
@ -92,5 +92,3 @@ void BM_CEscape_MostEscaped(benchmark::State& state) {
BENCHMARK(BM_CEscape_MostEscaped)->Range(1, 1 << 14);
} // namespace
BENCHMARK_MAIN();

View file

@ -25,7 +25,7 @@
#include "absl/container/fixed_array.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/internal/escaping_test_common.inc"
#include "absl/strings/internal/escaping_test_common.h"
namespace {
@ -575,7 +575,7 @@ TEST(Base64, EscapeAndUnescape) {
}
// Now try the long strings, this tests the streaming
for (const auto& tc : base64_strings) {
for (const auto& tc : absl::strings_internal::base64_strings()) {
std::string buffer;
absl::WebSafeBase64Escape(tc.plaintext, &buffer);
EXPECT_EQ(tc.cyphertext, buffer);

View file

@ -0,0 +1,61 @@
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "absl/strings/internal/char_map.h"
#include <cstdint>
#include "benchmark/benchmark.h"
namespace {
absl::strings_internal::Charmap MakeBenchmarkMap() {
absl::strings_internal::Charmap m;
uint32_t x[] = {0x0, 0x1, 0x2, 0x3, 0xf, 0xe, 0xd, 0xc};
for (uint32_t& t : x) t *= static_cast<uint32_t>(0x11111111UL);
for (uint32_t i = 0; i < 256; ++i) {
if ((x[i / 32] >> (i % 32)) & 1)
m = m | absl::strings_internal::Charmap::Char(i);
}
return m;
}
// Micro-benchmark for Charmap::contains.
void BM_Contains(benchmark::State& state) {
// Loop-body replicated 10 times to increase time per iteration.
// Argument continuously changed to avoid generating common subexpressions.
const absl::strings_internal::Charmap benchmark_map = MakeBenchmarkMap();
unsigned char c = 0;
int ops = 0;
for (auto _ : state) {
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
ops += benchmark_map.contains(c++);
}
benchmark::DoNotOptimize(ops);
}
BENCHMARK(BM_Contains);
// We don't bother benchmarking Charmap::IsZero or Charmap::IntersectsWith;
// their running time is data-dependent and it is not worth characterizing
// "typical" data.
} // namespace

View file

@ -0,0 +1,131 @@
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// This test contains common things needed by both escaping_test.cc and
// escaping_benchmark.cc.
#ifndef ABSL_STRINGS_INTERNAL_ESCAPING_TEST_COMMON_H_
#define ABSL_STRINGS_INTERNAL_ESCAPING_TEST_COMMON_H_
#include <array>
#include "absl/strings/string_view.h"
namespace absl {
namespace strings_internal {
struct base64_testcase {
absl::string_view plaintext;
absl::string_view cyphertext;
};
inline const std::array<base64_testcase, 5>& base64_strings() {
static const std::array<base64_testcase, 5> testcase{{
// Some google quotes
// Cyphertext created with "uuencode (GNU sharutils) 4.6.3"
// (Note that we're testing the websafe encoding, though, so if
// you add messages, be sure to run "tr -- '+/' '-_'" on the output)
{ "I was always good at math and science, and I never realized "
"that was unusual or somehow undesirable. So one of the things "
"I care a lot about is helping to remove that stigma, "
"to show girls that you can be feminine, you can like the things "
"that girls like, but you can also be really good at technology. "
"You can be really good at building things."
" - Marissa Meyer, Newsweek, 2010-12-22" "\n",
"SSB3YXMgYWx3YXlzIGdvb2QgYXQgbWF0aCBhbmQgc2NpZW5jZSwgYW5kIEkg"
"bmV2ZXIgcmVhbGl6ZWQgdGhhdCB3YXMgdW51c3VhbCBvciBzb21laG93IHVu"
"ZGVzaXJhYmxlLiBTbyBvbmUgb2YgdGhlIHRoaW5ncyBJIGNhcmUgYSBsb3Qg"
"YWJvdXQgaXMgaGVscGluZyB0byByZW1vdmUgdGhhdCBzdGlnbWEsIHRvIHNo"
"b3cgZ2lybHMgdGhhdCB5b3UgY2FuIGJlIGZlbWluaW5lLCB5b3UgY2FuIGxp"
"a2UgdGhlIHRoaW5ncyB0aGF0IGdpcmxzIGxpa2UsIGJ1dCB5b3UgY2FuIGFs"
"c28gYmUgcmVhbGx5IGdvb2QgYXQgdGVjaG5vbG9neS4gWW91IGNhbiBiZSBy"
"ZWFsbHkgZ29vZCBhdCBidWlsZGluZyB0aGluZ3MuIC0gTWFyaXNzYSBNZXll"
"ciwgTmV3c3dlZWssIDIwMTAtMTItMjIK" },
{ "Typical first year for a new cluster: "
"~0.5 overheating "
"~1 PDU failure "
"~1 rack-move "
"~1 network rewiring "
"~20 rack failures "
"~5 racks go wonky "
"~8 network maintenances "
"~12 router reloads "
"~3 router failures "
"~dozens of minor 30-second blips for dns "
"~1000 individual machine failures "
"~thousands of hard drive failures "
"slow disks, bad memory, misconfigured machines, flaky machines, etc."
" - Jeff Dean, The Joys of Real Hardware" "\n",
"VHlwaWNhbCBmaXJzdCB5ZWFyIGZvciBhIG5ldyBjbHVzdGVyOiB-MC41IG92"
"ZXJoZWF0aW5nIH4xIFBEVSBmYWlsdXJlIH4xIHJhY2stbW92ZSB-MSBuZXR3"
"b3JrIHJld2lyaW5nIH4yMCByYWNrIGZhaWx1cmVzIH41IHJhY2tzIGdvIHdv"
"bmt5IH44IG5ldHdvcmsgbWFpbnRlbmFuY2VzIH4xMiByb3V0ZXIgcmVsb2Fk"
"cyB-MyByb3V0ZXIgZmFpbHVyZXMgfmRvemVucyBvZiBtaW5vciAzMC1zZWNv"
"bmQgYmxpcHMgZm9yIGRucyB-MTAwMCBpbmRpdmlkdWFsIG1hY2hpbmUgZmFp"
"bHVyZXMgfnRob3VzYW5kcyBvZiBoYXJkIGRyaXZlIGZhaWx1cmVzIHNsb3cg"
"ZGlza3MsIGJhZCBtZW1vcnksIG1pc2NvbmZpZ3VyZWQgbWFjaGluZXMsIGZs"
"YWt5IG1hY2hpbmVzLCBldGMuIC0gSmVmZiBEZWFuLCBUaGUgSm95cyBvZiBS"
"ZWFsIEhhcmR3YXJlCg" },
{ "I'm the head of the webspam team at Google. "
"That means that if you type your name into Google and get porn back, "
"it's my fault. Unless you're a porn star, in which case porn is a "
"completely reasonable response."
" - Matt Cutts, Google Plus" "\n",
"SSdtIHRoZSBoZWFkIG9mIHRoZSB3ZWJzcGFtIHRlYW0gYXQgR29vZ2xlLiAg"
"VGhhdCBtZWFucyB0aGF0IGlmIHlvdSB0eXBlIHlvdXIgbmFtZSBpbnRvIEdv"
"b2dsZSBhbmQgZ2V0IHBvcm4gYmFjaywgaXQncyBteSBmYXVsdC4gVW5sZXNz"
"IHlvdSdyZSBhIHBvcm4gc3RhciwgaW4gd2hpY2ggY2FzZSBwb3JuIGlzIGEg"
"Y29tcGxldGVseSByZWFzb25hYmxlIHJlc3BvbnNlLiAtIE1hdHQgQ3V0dHMs"
"IEdvb2dsZSBQbHVzCg" },
{ "It will still be a long time before machines approach human "
"intelligence. "
"But luckily, machines don't actually have to be intelligent; "
"they just have to fake it. Access to a wealth of information, "
"combined with a rudimentary decision-making capacity, "
"can often be almost as useful. Of course, the results are better yet "
"when coupled with intelligence. A reference librarian with access to "
"a good search engine is a formidable tool."
" - Craig Silverstein, Siemens Pictures of the Future, Spring 2004"
"\n",
"SXQgd2lsbCBzdGlsbCBiZSBhIGxvbmcgdGltZSBiZWZvcmUgbWFjaGluZXMg"
"YXBwcm9hY2ggaHVtYW4gaW50ZWxsaWdlbmNlLiBCdXQgbHVja2lseSwgbWFj"
"aGluZXMgZG9uJ3QgYWN0dWFsbHkgaGF2ZSB0byBiZSBpbnRlbGxpZ2VudDsg"
"dGhleSBqdXN0IGhhdmUgdG8gZmFrZSBpdC4gQWNjZXNzIHRvIGEgd2VhbHRo"
"IG9mIGluZm9ybWF0aW9uLCBjb21iaW5lZCB3aXRoIGEgcnVkaW1lbnRhcnkg"
"ZGVjaXNpb24tbWFraW5nIGNhcGFjaXR5LCBjYW4gb2Z0ZW4gYmUgYWxtb3N0"
"IGFzIHVzZWZ1bC4gT2YgY291cnNlLCB0aGUgcmVzdWx0cyBhcmUgYmV0dGVy"
"IHlldCB3aGVuIGNvdXBsZWQgd2l0aCBpbnRlbGxpZ2VuY2UuIEEgcmVmZXJl"
"bmNlIGxpYnJhcmlhbiB3aXRoIGFjY2VzcyB0byBhIGdvb2Qgc2VhcmNoIGVu"
"Z2luZSBpcyBhIGZvcm1pZGFibGUgdG9vbC4gLSBDcmFpZyBTaWx2ZXJzdGVp"
"biwgU2llbWVucyBQaWN0dXJlcyBvZiB0aGUgRnV0dXJlLCBTcHJpbmcgMjAw"
"NAo" },
// Degenerate edge case
{ "",
"" },
}};
return testcase;
}
} // namespace strings_internal
} // namespace absl
#endif // ABSL_STRINGS_INTERNAL_ESCAPING_TEST_COMMON_H_

View file

@ -1,113 +0,0 @@
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// This test contains common things needed by both escaping_test.cc and
// escaping_benchmark.cc.
namespace {
struct {
absl::string_view plaintext;
absl::string_view cyphertext;
} const base64_strings[] = {
// Some google quotes
// Cyphertext created with "uuencode (GNU sharutils) 4.6.3"
// (Note that we're testing the websafe encoding, though, so if
// you add messages, be sure to run "tr -- '+/' '-_'" on the output)
{ "I was always good at math and science, and I never realized "
"that was unusual or somehow undesirable. So one of the things "
"I care a lot about is helping to remove that stigma, "
"to show girls that you can be feminine, you can like the things "
"that girls like, but you can also be really good at technology. "
"You can be really good at building things."
" - Marissa Meyer, Newsweek, 2010-12-22" "\n",
"SSB3YXMgYWx3YXlzIGdvb2QgYXQgbWF0aCBhbmQgc2NpZW5jZSwgYW5kIEkg"
"bmV2ZXIgcmVhbGl6ZWQgdGhhdCB3YXMgdW51c3VhbCBvciBzb21laG93IHVu"
"ZGVzaXJhYmxlLiBTbyBvbmUgb2YgdGhlIHRoaW5ncyBJIGNhcmUgYSBsb3Qg"
"YWJvdXQgaXMgaGVscGluZyB0byByZW1vdmUgdGhhdCBzdGlnbWEsIHRvIHNo"
"b3cgZ2lybHMgdGhhdCB5b3UgY2FuIGJlIGZlbWluaW5lLCB5b3UgY2FuIGxp"
"a2UgdGhlIHRoaW5ncyB0aGF0IGdpcmxzIGxpa2UsIGJ1dCB5b3UgY2FuIGFs"
"c28gYmUgcmVhbGx5IGdvb2QgYXQgdGVjaG5vbG9neS4gWW91IGNhbiBiZSBy"
"ZWFsbHkgZ29vZCBhdCBidWlsZGluZyB0aGluZ3MuIC0gTWFyaXNzYSBNZXll"
"ciwgTmV3c3dlZWssIDIwMTAtMTItMjIK" },
{ "Typical first year for a new cluster: "
"~0.5 overheating "
"~1 PDU failure "
"~1 rack-move "
"~1 network rewiring "
"~20 rack failures "
"~5 racks go wonky "
"~8 network maintenances "
"~12 router reloads "
"~3 router failures "
"~dozens of minor 30-second blips for dns "
"~1000 individual machine failures "
"~thousands of hard drive failures "
"slow disks, bad memory, misconfigured machines, flaky machines, etc."
" - Jeff Dean, The Joys of Real Hardware" "\n",
"VHlwaWNhbCBmaXJzdCB5ZWFyIGZvciBhIG5ldyBjbHVzdGVyOiB-MC41IG92"
"ZXJoZWF0aW5nIH4xIFBEVSBmYWlsdXJlIH4xIHJhY2stbW92ZSB-MSBuZXR3"
"b3JrIHJld2lyaW5nIH4yMCByYWNrIGZhaWx1cmVzIH41IHJhY2tzIGdvIHdv"
"bmt5IH44IG5ldHdvcmsgbWFpbnRlbmFuY2VzIH4xMiByb3V0ZXIgcmVsb2Fk"
"cyB-MyByb3V0ZXIgZmFpbHVyZXMgfmRvemVucyBvZiBtaW5vciAzMC1zZWNv"
"bmQgYmxpcHMgZm9yIGRucyB-MTAwMCBpbmRpdmlkdWFsIG1hY2hpbmUgZmFp"
"bHVyZXMgfnRob3VzYW5kcyBvZiBoYXJkIGRyaXZlIGZhaWx1cmVzIHNsb3cg"
"ZGlza3MsIGJhZCBtZW1vcnksIG1pc2NvbmZpZ3VyZWQgbWFjaGluZXMsIGZs"
"YWt5IG1hY2hpbmVzLCBldGMuIC0gSmVmZiBEZWFuLCBUaGUgSm95cyBvZiBS"
"ZWFsIEhhcmR3YXJlCg" },
{ "I'm the head of the webspam team at Google. "
"That means that if you type your name into Google and get porn back, "
"it's my fault. Unless you're a porn star, in which case porn is a "
"completely reasonable response."
" - Matt Cutts, Google Plus" "\n",
"SSdtIHRoZSBoZWFkIG9mIHRoZSB3ZWJzcGFtIHRlYW0gYXQgR29vZ2xlLiAg"
"VGhhdCBtZWFucyB0aGF0IGlmIHlvdSB0eXBlIHlvdXIgbmFtZSBpbnRvIEdv"
"b2dsZSBhbmQgZ2V0IHBvcm4gYmFjaywgaXQncyBteSBmYXVsdC4gVW5sZXNz"
"IHlvdSdyZSBhIHBvcm4gc3RhciwgaW4gd2hpY2ggY2FzZSBwb3JuIGlzIGEg"
"Y29tcGxldGVseSByZWFzb25hYmxlIHJlc3BvbnNlLiAtIE1hdHQgQ3V0dHMs"
"IEdvb2dsZSBQbHVzCg" },
{ "It will still be a long time before machines approach human intelligence. "
"But luckily, machines don't actually have to be intelligent; "
"they just have to fake it. Access to a wealth of information, "
"combined with a rudimentary decision-making capacity, "
"can often be almost as useful. Of course, the results are better yet "
"when coupled with intelligence. A reference librarian with access to "
"a good search engine is a formidable tool."
" - Craig Silverstein, Siemens Pictures of the Future, Spring 2004" "\n",
"SXQgd2lsbCBzdGlsbCBiZSBhIGxvbmcgdGltZSBiZWZvcmUgbWFjaGluZXMg"
"YXBwcm9hY2ggaHVtYW4gaW50ZWxsaWdlbmNlLiBCdXQgbHVja2lseSwgbWFj"
"aGluZXMgZG9uJ3QgYWN0dWFsbHkgaGF2ZSB0byBiZSBpbnRlbGxpZ2VudDsg"
"dGhleSBqdXN0IGhhdmUgdG8gZmFrZSBpdC4gQWNjZXNzIHRvIGEgd2VhbHRo"
"IG9mIGluZm9ybWF0aW9uLCBjb21iaW5lZCB3aXRoIGEgcnVkaW1lbnRhcnkg"
"ZGVjaXNpb24tbWFraW5nIGNhcGFjaXR5LCBjYW4gb2Z0ZW4gYmUgYWxtb3N0"
"IGFzIHVzZWZ1bC4gT2YgY291cnNlLCB0aGUgcmVzdWx0cyBhcmUgYmV0dGVy"
"IHlldCB3aGVuIGNvdXBsZWQgd2l0aCBpbnRlbGxpZ2VuY2UuIEEgcmVmZXJl"
"bmNlIGxpYnJhcmlhbiB3aXRoIGFjY2VzcyB0byBhIGdvb2Qgc2VhcmNoIGVu"
"Z2luZSBpcyBhIGZvcm1pZGFibGUgdG9vbC4gLSBDcmFpZyBTaWx2ZXJzdGVp"
"biwgU2llbWVucyBQaWN0dXJlcyBvZiB0aGUgRnV0dXJlLCBTcHJpbmcgMjAw"
"NAo" },
// Degenerate edge case
{ "",
"" },
};
} // namespace

View file

@ -0,0 +1,178 @@
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// This file contains common things needed by numbers_test.cc,
// numbers_legacy_test.cc and numbers_benchmark.cc.
#ifndef ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
#define ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
#include <array>
#include <cstdint>
#include <limits>
#include <string>
namespace absl {
namespace strings_internal {
template <typename IntType>
inline bool Itoa(IntType value, int base, std::string* destination) {
destination->clear();
if (base <= 1 || base > 36) {
return false;
}
if (value == 0) {
destination->push_back('0');
return true;
}
bool negative = value < 0;
while (value != 0) {
const IntType next_value = value / base;
// Can't use std::abs here because of problems when IntType is unsigned.
int remainder = value > next_value * base ? value - next_value * base
: next_value * base - value;
char c = remainder < 10 ? '0' + remainder : 'A' + remainder - 10;
destination->insert(0, 1, c);
value = next_value;
}
if (negative) {
destination->insert(0, 1, '-');
}
return true;
}
struct uint32_test_case {
const char* str;
bool expect_ok;
int base; // base to pass to the conversion function
uint32_t expected;
};
inline const std::array<uint32_test_case, 27>& strtouint32_test_cases() {
static const std::array<uint32_test_case, 27> test_cases{{
{"0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
{"0x34234324", true, 16, 0x34234324},
{"34234324", true, 16, 0x34234324},
{"0", true, 16, 0},
{" \t\n 0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
{" \f\v 46", true, 10, 46}, // must accept weird whitespace
{" \t\n 72717222", true, 8, 072717222},
{" \t\n 072717222", true, 8, 072717222},
{" \t\n 072717228", false, 8, 07271722},
{"0", true, 0, 0},
// Base-10 version.
{"34234324", true, 0, 34234324},
{"4294967295", true, 0, std::numeric_limits<uint32_t>::max()},
{"34234324 \n\t", true, 10, 34234324},
// Unusual base
{"0", true, 3, 0},
{"2", true, 3, 2},
{"11", true, 3, 4},
// Invalid uints.
{"", false, 0, 0},
{" ", false, 0, 0},
{"abc", false, 0, 0}, // would be valid hex, but prefix is missing
{"34234324a", false, 0, 34234324},
{"34234.3", false, 0, 34234},
{"-1", false, 0, 0},
{" -123", false, 0, 0},
{" \t\n -123", false, 0, 0},
// Out of bounds.
{"4294967296", false, 0, std::numeric_limits<uint32_t>::max()},
{"0x100000000", false, 0, std::numeric_limits<uint32_t>::max()},
{nullptr, false, 0, 0},
}};
return test_cases;
}
struct uint64_test_case {
const char* str;
bool expect_ok;
int base;
uint64_t expected;
};
inline const std::array<uint64_test_case, 34>& strtouint64_test_cases() {
static const std::array<uint64_test_case, 34> test_cases{{
{"0x3423432448783446", true, 16, int64_t{0x3423432448783446}},
{"3423432448783446", true, 16, int64_t{0x3423432448783446}},
{"0", true, 16, 0},
{"000", true, 0, 0},
{"0", true, 0, 0},
{" \t\n 0xffffffffffffffff", true, 16,
std::numeric_limits<uint64_t>::max()},
{"012345670123456701234", true, 8, int64_t{012345670123456701234}},
{"12345670123456701234", true, 8, int64_t{012345670123456701234}},
{"12845670123456701234", false, 8, 0},
// Base-10 version.
{"34234324487834466", true, 0, int64_t{34234324487834466}},
{" \t\n 18446744073709551615", true, 0,
std::numeric_limits<uint64_t>::max()},
{"34234324487834466 \n\t ", true, 0, int64_t{34234324487834466}},
{" \f\v 46", true, 10, 46}, // must accept weird whitespace
// Unusual base
{"0", true, 3, 0},
{"2", true, 3, 2},
{"11", true, 3, 4},
{"0", true, 0, 0},
// Invalid uints.
{"", false, 0, 0},
{" ", false, 0, 0},
{"abc", false, 0, 0},
{"34234324487834466a", false, 0, 0},
{"34234487834466.3", false, 0, 0},
{"-1", false, 0, 0},
{" -123", false, 0, 0},
{" \t\n -123", false, 0, 0},
// Out of bounds.
{"18446744073709551616", false, 10, 0},
{"18446744073709551616", false, 0, 0},
{"0x10000000000000000", false, 16, std::numeric_limits<uint64_t>::max()},
{"0X10000000000000000", false, 16,
std::numeric_limits<uint64_t>::max()}, // 0X versus 0x.
{"0x10000000000000000", false, 0, std::numeric_limits<uint64_t>::max()},
{"0X10000000000000000", false, 0,
std::numeric_limits<uint64_t>::max()}, // 0X versus 0x.
{"0x1234", true, 16, 0x1234},
// Base-10 std::string version.
{"1234", true, 0, 1234},
{nullptr, false, 0, 0},
}};
return test_cases;
}
} // namespace strings_internal
} // namespace absl
#endif // ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_

View file

@ -1,156 +0,0 @@
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// This file contains common things needed by numbers_test.cc,
// numbers_legacy_test.cc and numbers_benchmark.cc.
namespace {
template <typename IntType>
bool Itoa(IntType value, int base, std::string* destination) {
destination->clear();
if (base <= 1 || base > 36) {
return false;
}
if (value == 0) {
destination->push_back('0');
return true;
}
bool negative = value < 0;
while (value != 0) {
const IntType next_value = value / base;
// Can't use std::abs here because of problems when IntType is unsigned.
int remainder = value > next_value * base ? value - next_value * base
: next_value * base - value;
char c = remainder < 10 ? '0' + remainder : 'A' + remainder - 10;
destination->insert(0, 1, c);
value = next_value;
}
if (negative) {
destination->insert(0, 1, '-');
}
return true;
}
struct uint32_test_case {
const char* str;
bool expect_ok;
int base; // base to pass to the conversion function
uint32_t expected;
} const strtouint32_test_cases[] = {
{"0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
{"0x34234324", true, 16, 0x34234324},
{"34234324", true, 16, 0x34234324},
{"0", true, 16, 0},
{" \t\n 0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
{" \f\v 46", true, 10, 46}, // must accept weird whitespace
{" \t\n 72717222", true, 8, 072717222},
{" \t\n 072717222", true, 8, 072717222},
{" \t\n 072717228", false, 8, 07271722},
{"0", true, 0, 0},
// Base-10 version.
{"34234324", true, 0, 34234324},
{"4294967295", true, 0, std::numeric_limits<uint32_t>::max()},
{"34234324 \n\t", true, 10, 34234324},
// Unusual base
{"0", true, 3, 0},
{"2", true, 3, 2},
{"11", true, 3, 4},
// Invalid uints.
{"", false, 0, 0},
{" ", false, 0, 0},
{"abc", false, 0, 0}, // would be valid hex, but prefix is missing
{"34234324a", false, 0, 34234324},
{"34234.3", false, 0, 34234},
{"-1", false, 0, 0},
{" -123", false, 0, 0},
{" \t\n -123", false, 0, 0},
// Out of bounds.
{"4294967296", false, 0, std::numeric_limits<uint32_t>::max()},
{"0x100000000", false, 0, std::numeric_limits<uint32_t>::max()},
{nullptr, false, 0, 0},
};
struct uint64_test_case {
const char* str;
bool expect_ok;
int base;
uint64_t expected;
} const strtouint64_test_cases[] = {
{"0x3423432448783446", true, 16, int64_t{0x3423432448783446}},
{"3423432448783446", true, 16, int64_t{0x3423432448783446}},
{"0", true, 16, 0},
{"000", true, 0, 0},
{"0", true, 0, 0},
{" \t\n 0xffffffffffffffff", true, 16,
std::numeric_limits<uint64_t>::max()},
{"012345670123456701234", true, 8, int64_t{012345670123456701234}},
{"12345670123456701234", true, 8, int64_t{012345670123456701234}},
{"12845670123456701234", false, 8, 0},
// Base-10 version.
{"34234324487834466", true, 0, int64_t{34234324487834466}},
{" \t\n 18446744073709551615", true, 0,
std::numeric_limits<uint64_t>::max()},
{"34234324487834466 \n\t ", true, 0, int64_t{34234324487834466}},
{" \f\v 46", true, 10, 46}, // must accept weird whitespace
// Unusual base
{"0", true, 3, 0},
{"2", true, 3, 2},
{"11", true, 3, 4},
{"0", true, 0, 0},
// Invalid uints.
{"", false, 0, 0},
{" ", false, 0, 0},
{"abc", false, 0, 0},
{"34234324487834466a", false, 0, 0},
{"34234487834466.3", false, 0, 0},
{"-1", false, 0, 0},
{" -123", false, 0, 0},
{" \t\n -123", false, 0, 0},
// Out of bounds.
{"18446744073709551616", false, 10, 0},
{"18446744073709551616", false, 0, 0},
{"0x10000000000000000", false, 16, std::numeric_limits<uint64_t>::max()},
{"0X10000000000000000", false, 16,
std::numeric_limits<uint64_t>::max()}, // 0X versus 0x.
{"0x10000000000000000", false, 0, std::numeric_limits<uint64_t>::max()},
{"0X10000000000000000", false, 0,
std::numeric_limits<uint64_t>::max()}, // 0X versus 0x.
{"0x1234", true, 16, 0x1234},
// Base-10 std::string version.
{"1234", true, 0, 1234},
{nullptr, false, 0, 0},
};
} // namespace

View file

@ -0,0 +1,106 @@
// Copyright 2018 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "absl/strings/internal/ostringstream.h"
#include <sstream>
#include <string>
#include "benchmark/benchmark.h"
namespace {
enum StringType {
kNone,
kStdString,
};
// Benchmarks for std::ostringstream.
template <StringType kOutput>
void BM_StdStream(benchmark::State& state) {
const int num_writes = state.range(0);
const int bytes_per_write = state.range(1);
const std::string payload(bytes_per_write, 'x');
for (auto _ : state) {
std::ostringstream strm;
benchmark::DoNotOptimize(strm);
for (int i = 0; i != num_writes; ++i) {
strm << payload;
}
switch (kOutput) {
case kNone: {
break;
}
case kStdString: {
std::string s = strm.str();
benchmark::DoNotOptimize(s);
break;
}
}
}
}
// Create the stream, optionally write to it, then destroy it.
BENCHMARK_TEMPLATE(BM_StdStream, kNone)
->ArgPair(0, 0)
->ArgPair(1, 16) // 16 bytes is small enough for SSO
->ArgPair(1, 256) // 256 bytes requires heap allocation
->ArgPair(1024, 256);
// Create the stream, write to it, get std::string out, then destroy.
BENCHMARK_TEMPLATE(BM_StdStream, kStdString)
->ArgPair(1, 16) // 16 bytes is small enough for SSO
->ArgPair(1, 256) // 256 bytes requires heap allocation
->ArgPair(1024, 256);
// Benchmarks for OStringStream.
template <StringType kOutput>
void BM_CustomStream(benchmark::State& state) {
const int num_writes = state.range(0);
const int bytes_per_write = state.range(1);
const std::string payload(bytes_per_write, 'x');
for (auto _ : state) {
std::string out;
absl::strings_internal::OStringStream strm(&out);
benchmark::DoNotOptimize(strm);
for (int i = 0; i != num_writes; ++i) {
strm << payload;
}
switch (kOutput) {
case kNone: {
break;
}
case kStdString: {
std::string s = out;
benchmark::DoNotOptimize(s);
break;
}
}
}
}
// Create the stream, optionally write to it, then destroy it.
BENCHMARK_TEMPLATE(BM_CustomStream, kNone)
->ArgPair(0, 0)
->ArgPair(1, 16) // 16 bytes is small enough for SSO
->ArgPair(1, 256) // 256 bytes requires heap allocation
->ArgPair(1024, 256);
// Create the stream, write to it, get std::string out, then destroy.
// It's not useful in practice to extract std::string from OStringStream; we
// measure it for completeness.
BENCHMARK_TEMPLATE(BM_CustomStream, kStdString)
->ArgPair(1, 16) // 16 bytes is small enough for SSO
->ArgPair(1, 256) // 256 bytes requires heap allocation
->ArgPair(1024, 256);
} // namespace

View file

@ -52,12 +52,16 @@ ABSL_MUST_USE_RESULT bool SimpleAtoi(absl::string_view s, int_type* out);
//
// Converts the given std::string (optionally followed or preceded by ASCII
// whitespace) into a float, which may be rounded on overflow or underflow.
// See http://en.cppreference.com/w/c/std::string/byte/strtof for details about the
// allowed formats for `str`.
ABSL_MUST_USE_RESULT bool SimpleAtof(absl::string_view str, float* value);
// SimpleAtod()
//
// Converts the given std::string (optionally followed or preceded by ASCII
// whitespace) into a double, which may be rounded on overflow or underflow.
// See http://en.cppreference.com/w/c/std::string/byte/strtof for details about the
// allowed formats for `str`.
ABSL_MUST_USE_RESULT bool SimpleAtod(absl::string_view str, double* value);
// SimpleAtob()

View file

@ -38,7 +38,7 @@
#include "absl/base/internal/raw_logging.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/internal/numbers_test_common.inc"
#include "absl/strings/internal/numbers_test_common.h"
namespace {
@ -48,6 +48,9 @@ using absl::numbers_internal::safe_strto64_base;
using absl::numbers_internal::safe_strtou32_base;
using absl::numbers_internal::safe_strtou64_base;
using absl::numbers_internal::SixDigitsToBuffer;
using absl::strings_internal::Itoa;
using absl::strings_internal::strtouint32_test_cases;
using absl::strings_internal::strtouint64_test_cases;
using absl::SimpleAtoi;
using testing::Eq;
using testing::MatchesRegex;
@ -654,8 +657,8 @@ TEST(stringtest, safe_strtou64_random) {
}
TEST(stringtest, safe_strtou32_base) {
for (int i = 0; strtouint32_test_cases[i].str != nullptr; ++i) {
const auto& e = strtouint32_test_cases[i];
for (int i = 0; strtouint32_test_cases()[i].str != nullptr; ++i) {
const auto& e = strtouint32_test_cases()[i];
uint32_t value;
EXPECT_EQ(e.expect_ok, safe_strtou32_base(e.str, &value, e.base))
<< "str=\"" << e.str << "\" base=" << e.base;
@ -667,8 +670,8 @@ TEST(stringtest, safe_strtou32_base) {
}
TEST(stringtest, safe_strtou32_base_length_delimited) {
for (int i = 0; strtouint32_test_cases[i].str != nullptr; ++i) {
const auto& e = strtouint32_test_cases[i];
for (int i = 0; strtouint32_test_cases()[i].str != nullptr; ++i) {
const auto& e = strtouint32_test_cases()[i];
std::string tmp(e.str);
tmp.append("12"); // Adds garbage at the end.
@ -685,8 +688,8 @@ TEST(stringtest, safe_strtou32_base_length_delimited) {
}
TEST(stringtest, safe_strtou64_base) {
for (int i = 0; strtouint64_test_cases[i].str != nullptr; ++i) {
const auto& e = strtouint64_test_cases[i];
for (int i = 0; strtouint64_test_cases()[i].str != nullptr; ++i) {
const auto& e = strtouint64_test_cases()[i];
uint64_t value;
EXPECT_EQ(e.expect_ok, safe_strtou64_base(e.str, &value, e.base))
<< "str=\"" << e.str << "\" base=" << e.base;
@ -697,8 +700,8 @@ TEST(stringtest, safe_strtou64_base) {
}
TEST(stringtest, safe_strtou64_base_length_delimited) {
for (int i = 0; strtouint64_test_cases[i].str != nullptr; ++i) {
const auto& e = strtouint64_test_cases[i];
for (int i = 0; strtouint64_test_cases()[i].str != nullptr; ++i) {
const auto& e = strtouint64_test_cases()[i];
std::string tmp(e.str);
tmp.append("12"); // Adds garbage at the end.

View file

@ -138,5 +138,3 @@ void BM_DoubleToString_By_SixDigits(benchmark::State& state) {
BENCHMARK(BM_DoubleToString_By_SixDigits);
} // namespace
BENCHMARK_MAIN();

View file

@ -94,5 +94,3 @@ BENCHMARK(BM_JoinStreamable)
->ArgPair(256, 256);
} // namespace
BENCHMARK_MAIN();

View file

@ -120,5 +120,3 @@ void BM_StrReplaceAll(benchmark::State& state) {
BENCHMARK(BM_StrReplaceAll);
} // namespace
BENCHMARK_MAIN();

View file

@ -154,5 +154,3 @@ BENCHMARK_TEMPLATE(BM_SplitStringWithOneCharNoVector, OneCharLiteral);
BENCHMARK_TEMPLATE(BM_SplitStringWithOneCharNoVector, OneCharStringLiteral);
} // namespace
BENCHMARK_MAIN();

View file

@ -327,5 +327,3 @@ void BM_AppendToStringNative(benchmark::State& state) {
BENCHMARK(BM_AppendToStringNative)->Range(1 << 3, 1 << 12);
} // namespace
BENCHMARK_MAIN();

View file

@ -99,7 +99,10 @@ class Arg {
// Explicitly overload `const char*` so the compiler doesn't cast to `bool`.
Arg(const char* value) // NOLINT(runtime/explicit)
: piece_(absl::NullSafeStringView(value)) {}
Arg(const std::string& value) // NOLINT(runtime/explicit)
template <typename Allocator>
Arg( // NOLINT
const std::basic_string<char, std::char_traits<char>, Allocator>&
value) noexcept
: piece_(value) {}
Arg(absl::string_view value) // NOLINT(runtime/explicit)
: piece_(value) {}

View file

@ -130,7 +130,7 @@ cc_test(
deps = [
":graphcycles_internal",
"//absl/base",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)
@ -176,7 +176,7 @@ cc_test(
":synchronization",
":thread_pool",
"//absl/base",
"@com_github_google_benchmark//:benchmark",
"@com_github_google_benchmark//:benchmark_main",
],
)

View file

@ -42,5 +42,3 @@ void BM_StressTest(benchmark::State& state) {
BENCHMARK(BM_StressTest)->Range(2048, 1048576);
} // namespace
BENCHMARK_MAIN();

View file

@ -92,5 +92,3 @@ BENCHMARK(BM_ContendedMutex)->Threads(1);
BENCHMARK(BM_ContendedMutex)->ThreadPerCpu();
} // namespace
BENCHMARK_MAIN();

View file

@ -81,10 +81,6 @@ cc_test(
],
copts = ABSL_TEST_COPTS,
tags = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
"no_test_ios_x86_64",
"no_test_loonix",
],
deps = [

View file

@ -81,6 +81,11 @@ cc_test(
size = "small",
srcs = ["src/time_zone_format_test.cc"],
data = [":zoneinfo"],
tags = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
],
deps = [
":civil_time",
":time_zone",
@ -93,6 +98,11 @@ cc_test(
size = "small",
srcs = ["src/time_zone_lookup_test.cc"],
data = [":zoneinfo"],
tags = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
],
deps = [
":civil_time",
":time_zone",
@ -102,6 +112,24 @@ cc_test(
### benchmarks
cc_test(
name = "cctz_benchmark",
srcs = [
"src/cctz_benchmark.cc",
"src/time_zone_if.h",
"src/time_zone_impl.h",
"src/time_zone_info.h",
"src/tzfile.h",
],
linkstatic = 1,
tags = ["benchmark"],
deps = [
":civil_time",
":time_zone",
"@com_github_google_benchmark//:benchmark_main",
],
)
### examples
### binaries

View file

@ -0,0 +1,982 @@
// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <algorithm>
#include <cassert>
#include <chrono>
#include <ctime>
#include <random>
#include <string>
#include <vector>
#include "benchmark/benchmark.h"
#include "absl/time/internal/cctz/include/cctz/civil_time.h"
#include "absl/time/internal/cctz/include/cctz/time_zone.h"
#include "time_zone_impl.h"
namespace {
namespace cctz = absl::time_internal::cctz;
void BM_Difference_Days(benchmark::State& state) {
const cctz::civil_day c(2014, 8, 22);
const cctz::civil_day epoch(1970, 1, 1);
while (state.KeepRunning()) {
benchmark::DoNotOptimize(c - epoch);
}
}
BENCHMARK(BM_Difference_Days);
void BM_Step_Days(benchmark::State& state) {
const cctz::civil_day kStart(2014, 8, 22);
cctz::civil_day c = kStart;
while (state.KeepRunning()) {
benchmark::DoNotOptimize(++c);
}
}
BENCHMARK(BM_Step_Days);
const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
const char RFC3339_sec[] = "%Y-%m-%dT%H:%M:%S%Ez";
const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z";
const char RFC1123_no_wday[] = "%d %b %Y %H:%M:%S %z";
// A list of known time-zone names.
// TODO: Refactor with src/time_zone_lookup_test.cc.
const char* const kTimeZoneNames[] = {
"Africa/Abidjan",
"Africa/Accra",
"Africa/Addis_Ababa",
"Africa/Algiers",
"Africa/Asmara",
"Africa/Asmera",
"Africa/Bamako",
"Africa/Bangui",
"Africa/Banjul",
"Africa/Bissau",
"Africa/Blantyre",
"Africa/Brazzaville",
"Africa/Bujumbura",
"Africa/Cairo",
"Africa/Casablanca",
"Africa/Ceuta",
"Africa/Conakry",
"Africa/Dakar",
"Africa/Dar_es_Salaam",
"Africa/Djibouti",
"Africa/Douala",
"Africa/El_Aaiun",
"Africa/Freetown",
"Africa/Gaborone",
"Africa/Harare",
"Africa/Johannesburg",
"Africa/Juba",
"Africa/Kampala",
"Africa/Khartoum",
"Africa/Kigali",
"Africa/Kinshasa",
"Africa/Lagos",
"Africa/Libreville",
"Africa/Lome",
"Africa/Luanda",
"Africa/Lubumbashi",
"Africa/Lusaka",
"Africa/Malabo",
"Africa/Maputo",
"Africa/Maseru",
"Africa/Mbabane",
"Africa/Mogadishu",
"Africa/Monrovia",
"Africa/Nairobi",
"Africa/Ndjamena",
"Africa/Niamey",
"Africa/Nouakchott",
"Africa/Ouagadougou",
"Africa/Porto-Novo",
"Africa/Sao_Tome",
"Africa/Timbuktu",
"Africa/Tripoli",
"Africa/Tunis",
"Africa/Windhoek",
"America/Adak",
"America/Anchorage",
"America/Anguilla",
"America/Antigua",
"America/Araguaina",
"America/Argentina/Buenos_Aires",
"America/Argentina/Catamarca",
"America/Argentina/ComodRivadavia",
"America/Argentina/Cordoba",
"America/Argentina/Jujuy",
"America/Argentina/La_Rioja",
"America/Argentina/Mendoza",
"America/Argentina/Rio_Gallegos",
"America/Argentina/Salta",
"America/Argentina/San_Juan",
"America/Argentina/San_Luis",
"America/Argentina/Tucuman",
"America/Argentina/Ushuaia",
"America/Aruba",
"America/Asuncion",
"America/Atikokan",
"America/Atka",
"America/Bahia",
"America/Bahia_Banderas",
"America/Barbados",
"America/Belem",
"America/Belize",
"America/Blanc-Sablon",
"America/Boa_Vista",
"America/Bogota",
"America/Boise",
"America/Buenos_Aires",
"America/Cambridge_Bay",
"America/Campo_Grande",
"America/Cancun",
"America/Caracas",
"America/Catamarca",
"America/Cayenne",
"America/Cayman",
"America/Chicago",
"America/Chihuahua",
"America/Coral_Harbour",
"America/Cordoba",
"America/Costa_Rica",
"America/Creston",
"America/Cuiaba",
"America/Curacao",
"America/Danmarkshavn",
"America/Dawson",
"America/Dawson_Creek",
"America/Denver",
"America/Detroit",
"America/Dominica",
"America/Edmonton",
"America/Eirunepe",
"America/El_Salvador",
"America/Ensenada",
"America/Fort_Nelson",
"America/Fort_Wayne",
"America/Fortaleza",
"America/Glace_Bay",
"America/Godthab",
"America/Goose_Bay",
"America/Grand_Turk",
"America/Grenada",
"America/Guadeloupe",
"America/Guatemala",
"America/Guayaquil",
"America/Guyana",
"America/Halifax",
"America/Havana",
"America/Hermosillo",
"America/Indiana/Indianapolis",
"America/Indiana/Knox",
"America/Indiana/Marengo",
"America/Indiana/Petersburg",
"America/Indiana/Tell_City",
"America/Indiana/Vevay",
"America/Indiana/Vincennes",
"America/Indiana/Winamac",
"America/Indianapolis",
"America/Inuvik",
"America/Iqaluit",
"America/Jamaica",
"America/Jujuy",
"America/Juneau",
"America/Kentucky/Louisville",
"America/Kentucky/Monticello",
"America/Knox_IN",
"America/Kralendijk",
"America/La_Paz",
"America/Lima",
"America/Los_Angeles",
"America/Louisville",
"America/Lower_Princes",
"America/Maceio",
"America/Managua",
"America/Manaus",
"America/Marigot",
"America/Martinique",
"America/Matamoros",
"America/Mazatlan",
"America/Mendoza",
"America/Menominee",
"America/Merida",
"America/Metlakatla",
"America/Mexico_City",
"America/Miquelon",
"America/Moncton",
"America/Monterrey",
"America/Montevideo",
"America/Montreal",
"America/Montserrat",
"America/Nassau",
"America/New_York",
"America/Nipigon",
"America/Nome",
"America/Noronha",
"America/North_Dakota/Beulah",
"America/North_Dakota/Center",
"America/North_Dakota/New_Salem",
"America/Ojinaga",
"America/Panama",
"America/Pangnirtung",
"America/Paramaribo",
"America/Phoenix",
"America/Port-au-Prince",
"America/Port_of_Spain",
"America/Porto_Acre",
"America/Porto_Velho",
"America/Puerto_Rico",
"America/Punta_Arenas",
"America/Rainy_River",
"America/Rankin_Inlet",
"America/Recife",
"America/Regina",
"America/Resolute",
"America/Rio_Branco",
"America/Rosario",
"America/Santa_Isabel",
"America/Santarem",
"America/Santiago",
"America/Santo_Domingo",
"America/Sao_Paulo",
"America/Scoresbysund",
"America/Shiprock",
"America/Sitka",
"America/St_Barthelemy",
"America/St_Johns",
"America/St_Kitts",
"America/St_Lucia",
"America/St_Thomas",
"America/St_Vincent",
"America/Swift_Current",
"America/Tegucigalpa",
"America/Thule",
"America/Thunder_Bay",
"America/Tijuana",
"America/Toronto",
"America/Tortola",
"America/Vancouver",
"America/Virgin",
"America/Whitehorse",
"America/Winnipeg",
"America/Yakutat",
"America/Yellowknife",
"Antarctica/Casey",
"Antarctica/Davis",
"Antarctica/DumontDUrville",
"Antarctica/Macquarie",
"Antarctica/Mawson",
"Antarctica/McMurdo",
"Antarctica/Palmer",
"Antarctica/Rothera",
"Antarctica/South_Pole",
"Antarctica/Syowa",
"Antarctica/Troll",
"Antarctica/Vostok",
"Arctic/Longyearbyen",
"Asia/Aden",
"Asia/Almaty",
"Asia/Amman",
"Asia/Anadyr",
"Asia/Aqtau",
"Asia/Aqtobe",
"Asia/Ashgabat",
"Asia/Ashkhabad",
"Asia/Atyrau",
"Asia/Baghdad",
"Asia/Bahrain",
"Asia/Baku",
"Asia/Bangkok",
"Asia/Barnaul",
"Asia/Beirut",
"Asia/Bishkek",
"Asia/Brunei",
"Asia/Calcutta",
"Asia/Chita",
"Asia/Choibalsan",
"Asia/Chongqing",
"Asia/Chungking",
"Asia/Colombo",
"Asia/Dacca",
"Asia/Damascus",
"Asia/Dhaka",
"Asia/Dili",
"Asia/Dubai",
"Asia/Dushanbe",
"Asia/Famagusta",
"Asia/Gaza",
"Asia/Harbin",
"Asia/Hebron",
"Asia/Ho_Chi_Minh",
"Asia/Hong_Kong",
"Asia/Hovd",
"Asia/Irkutsk",
"Asia/Istanbul",
"Asia/Jakarta",
"Asia/Jayapura",
"Asia/Jerusalem",
"Asia/Kabul",
"Asia/Kamchatka",
"Asia/Karachi",
"Asia/Kashgar",
"Asia/Kathmandu",
"Asia/Katmandu",
"Asia/Khandyga",
"Asia/Kolkata",
"Asia/Krasnoyarsk",
"Asia/Kuala_Lumpur",
"Asia/Kuching",
"Asia/Kuwait",
"Asia/Macao",
"Asia/Macau",
"Asia/Magadan",
"Asia/Makassar",
"Asia/Manila",
"Asia/Muscat",
"Asia/Nicosia",
"Asia/Novokuznetsk",
"Asia/Novosibirsk",
"Asia/Omsk",
"Asia/Oral",
"Asia/Phnom_Penh",
"Asia/Pontianak",
"Asia/Pyongyang",
"Asia/Qatar",
"Asia/Qyzylorda",
"Asia/Rangoon",
"Asia/Riyadh",
"Asia/Saigon",
"Asia/Sakhalin",
"Asia/Samarkand",
"Asia/Seoul",
"Asia/Shanghai",
"Asia/Singapore",
"Asia/Srednekolymsk",
"Asia/Taipei",
"Asia/Tashkent",
"Asia/Tbilisi",
"Asia/Tehran",
"Asia/Tel_Aviv",
"Asia/Thimbu",
"Asia/Thimphu",
"Asia/Tokyo",
"Asia/Tomsk",
"Asia/Ujung_Pandang",
"Asia/Ulaanbaatar",
"Asia/Ulan_Bator",
"Asia/Urumqi",
"Asia/Ust-Nera",
"Asia/Vientiane",
"Asia/Vladivostok",
"Asia/Yakutsk",
"Asia/Yangon",
"Asia/Yekaterinburg",
"Asia/Yerevan",
"Atlantic/Azores",
"Atlantic/Bermuda",
"Atlantic/Canary",
"Atlantic/Cape_Verde",
"Atlantic/Faeroe",
"Atlantic/Faroe",
"Atlantic/Jan_Mayen",
"Atlantic/Madeira",
"Atlantic/Reykjavik",
"Atlantic/South_Georgia",
"Atlantic/St_Helena",
"Atlantic/Stanley",
"Australia/ACT",
"Australia/Adelaide",
"Australia/Brisbane",
"Australia/Broken_Hill",
"Australia/Canberra",
"Australia/Currie",
"Australia/Darwin",
"Australia/Eucla",
"Australia/Hobart",
"Australia/LHI",
"Australia/Lindeman",
"Australia/Lord_Howe",
"Australia/Melbourne",
"Australia/NSW",
"Australia/North",
"Australia/Perth",
"Australia/Queensland",
"Australia/South",
"Australia/Sydney",
"Australia/Tasmania",
"Australia/Victoria",
"Australia/West",
"Australia/Yancowinna",
"Brazil/Acre",
"Brazil/DeNoronha",
"Brazil/East",
"Brazil/West",
"CET",
"CST6CDT",
"Canada/Atlantic",
"Canada/Central",
"Canada/Eastern",
"Canada/Mountain",
"Canada/Newfoundland",
"Canada/Pacific",
"Canada/Saskatchewan",
"Canada/Yukon",
"Chile/Continental",
"Chile/EasterIsland",
"Cuba",
"EET",
"EST",
"EST5EDT",
"Egypt",
"Eire",
"Etc/GMT",
"Etc/GMT+0",
"Etc/GMT+1",
"Etc/GMT+10",
"Etc/GMT+11",
"Etc/GMT+12",
"Etc/GMT+2",
"Etc/GMT+3",
"Etc/GMT+4",
"Etc/GMT+5",
"Etc/GMT+6",
"Etc/GMT+7",
"Etc/GMT+8",
"Etc/GMT+9",
"Etc/GMT-0",
"Etc/GMT-1",
"Etc/GMT-10",
"Etc/GMT-11",
"Etc/GMT-12",
"Etc/GMT-13",
"Etc/GMT-14",
"Etc/GMT-2",
"Etc/GMT-3",
"Etc/GMT-4",
"Etc/GMT-5",
"Etc/GMT-6",
"Etc/GMT-7",
"Etc/GMT-8",
"Etc/GMT-9",
"Etc/GMT0",
"Etc/Greenwich",
"Etc/UCT",
"Etc/UTC",
"Etc/Universal",
"Etc/Zulu",
"Europe/Amsterdam",
"Europe/Andorra",
"Europe/Astrakhan",
"Europe/Athens",
"Europe/Belfast",
"Europe/Belgrade",
"Europe/Berlin",
"Europe/Bratislava",
"Europe/Brussels",
"Europe/Bucharest",
"Europe/Budapest",
"Europe/Busingen",
"Europe/Chisinau",
"Europe/Copenhagen",
"Europe/Dublin",
"Europe/Gibraltar",
"Europe/Guernsey",
"Europe/Helsinki",
"Europe/Isle_of_Man",
"Europe/Istanbul",
"Europe/Jersey",
"Europe/Kaliningrad",
"Europe/Kiev",
"Europe/Kirov",
"Europe/Lisbon",
"Europe/Ljubljana",
"Europe/London",
"Europe/Luxembourg",
"Europe/Madrid",
"Europe/Malta",
"Europe/Mariehamn",
"Europe/Minsk",
"Europe/Monaco",
"Europe/Moscow",
"Europe/Nicosia",
"Europe/Oslo",
"Europe/Paris",
"Europe/Podgorica",
"Europe/Prague",
"Europe/Riga",
"Europe/Rome",
"Europe/Samara",
"Europe/San_Marino",
"Europe/Sarajevo",
"Europe/Saratov",
"Europe/Simferopol",
"Europe/Skopje",
"Europe/Sofia",
"Europe/Stockholm",
"Europe/Tallinn",
"Europe/Tirane",
"Europe/Tiraspol",
"Europe/Ulyanovsk",
"Europe/Uzhgorod",
"Europe/Vaduz",
"Europe/Vatican",
"Europe/Vienna",
"Europe/Vilnius",
"Europe/Volgograd",
"Europe/Warsaw",
"Europe/Zagreb",
"Europe/Zaporozhye",
"Europe/Zurich",
"GB",
"GB-Eire",
"GMT",
"GMT+0",
"GMT-0",
"GMT0",
"Greenwich",
"HST",
"Hongkong",
"Iceland",
"Indian/Antananarivo",
"Indian/Chagos",
"Indian/Christmas",
"Indian/Cocos",
"Indian/Comoro",
"Indian/Kerguelen",
"Indian/Mahe",
"Indian/Maldives",
"Indian/Mauritius",
"Indian/Mayotte",
"Indian/Reunion",
"Iran",
"Israel",
"Jamaica",
"Japan",
"Kwajalein",
"Libya",
"MET",
"MST",
"MST7MDT",
"Mexico/BajaNorte",
"Mexico/BajaSur",
"Mexico/General",
"NZ",
"NZ-CHAT",
"Navajo",
"PRC",
"PST8PDT",
"Pacific/Apia",
"Pacific/Auckland",
"Pacific/Bougainville",
"Pacific/Chatham",
"Pacific/Chuuk",
"Pacific/Easter",
"Pacific/Efate",
"Pacific/Enderbury",
"Pacific/Fakaofo",
"Pacific/Fiji",
"Pacific/Funafuti",
"Pacific/Galapagos",
"Pacific/Gambier",
"Pacific/Guadalcanal",
"Pacific/Guam",
"Pacific/Honolulu",
"Pacific/Johnston",
"Pacific/Kiritimati",
"Pacific/Kosrae",
"Pacific/Kwajalein",
"Pacific/Majuro",
"Pacific/Marquesas",
"Pacific/Midway",
"Pacific/Nauru",
"Pacific/Niue",
"Pacific/Norfolk",
"Pacific/Noumea",
"Pacific/Pago_Pago",
"Pacific/Palau",
"Pacific/Pitcairn",
"Pacific/Pohnpei",
"Pacific/Ponape",
"Pacific/Port_Moresby",
"Pacific/Rarotonga",
"Pacific/Saipan",
"Pacific/Samoa",
"Pacific/Tahiti",
"Pacific/Tarawa",
"Pacific/Tongatapu",
"Pacific/Truk",
"Pacific/Wake",
"Pacific/Wallis",
"Pacific/Yap",
"Poland",
"Portugal",
"ROC",
"ROK",
"Singapore",
"Turkey",
"UCT",
"US/Alaska",
"US/Aleutian",
"US/Arizona",
"US/Central",
"US/East-Indiana",
"US/Eastern",
"US/Hawaii",
"US/Indiana-Starke",
"US/Michigan",
"US/Mountain",
"US/Pacific",
"US/Samoa",
"UTC",
"Universal",
"W-SU",
"WET",
"Zulu",
nullptr
};
std::vector<std::string> AllTimeZoneNames() {
std::vector<std::string> names;
for (const char* const* namep = kTimeZoneNames; *namep != nullptr; ++namep) {
names.push_back(std::string("file:") + *namep);
}
assert(!names.empty());
std::mt19937 urbg(42); // a UniformRandomBitGenerator with fixed seed
std::shuffle(names.begin(), names.end(), urbg);
return names;
}
cctz::time_zone TestTimeZone() {
cctz::time_zone tz;
cctz::load_time_zone("America/Los_Angeles", &tz);
return tz;
}
void BM_Zone_LoadUTCTimeZoneFirst(benchmark::State& state) {
cctz::time_zone tz;
cctz::load_time_zone("UTC", &tz); // in case we're first
cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz));
}
}
BENCHMARK(BM_Zone_LoadUTCTimeZoneFirst);
void BM_Zone_LoadUTCTimeZoneLast(benchmark::State& state) {
cctz::time_zone tz;
for (const auto& name : AllTimeZoneNames()) {
cctz::load_time_zone(name, &tz); // prime cache
}
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz));
}
}
BENCHMARK(BM_Zone_LoadUTCTimeZoneLast);
void BM_Zone_LoadTimeZoneFirst(benchmark::State& state) {
cctz::time_zone tz = cctz::utc_time_zone(); // in case we're first
const std::string name = "file:America/Los_Angeles";
while (state.KeepRunning()) {
state.PauseTiming();
cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
state.ResumeTiming();
benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz));
}
}
BENCHMARK(BM_Zone_LoadTimeZoneFirst);
void BM_Zone_LoadTimeZoneCached(benchmark::State& state) {
cctz::time_zone tz = cctz::utc_time_zone(); // in case we're first
cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
const std::string name = "file:America/Los_Angeles";
cctz::load_time_zone(name, &tz); // prime cache
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz));
}
}
BENCHMARK(BM_Zone_LoadTimeZoneCached);
void BM_Zone_LoadLocalTimeZoneCached(benchmark::State& state) {
cctz::utc_time_zone(); // in case we're first
cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
cctz::local_time_zone(); // prime cache
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::local_time_zone());
}
}
BENCHMARK(BM_Zone_LoadLocalTimeZoneCached);
void BM_Zone_LoadAllTimeZonesFirst(benchmark::State& state) {
cctz::time_zone tz;
const std::vector<std::string> names = AllTimeZoneNames();
for (auto index = names.size(); state.KeepRunning(); ++index) {
if (index == names.size()) {
index = 0;
}
if (index == 0) {
state.PauseTiming();
cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
state.ResumeTiming();
}
benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz));
}
}
BENCHMARK(BM_Zone_LoadAllTimeZonesFirst);
void BM_Zone_LoadAllTimeZonesCached(benchmark::State& state) {
cctz::time_zone tz;
const std::vector<std::string> names = AllTimeZoneNames();
for (const auto& name : names) {
cctz::load_time_zone(name, &tz); // prime cache
}
for (auto index = names.size(); state.KeepRunning(); ++index) {
if (index == names.size()) {
index = 0;
}
benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz));
}
}
BENCHMARK(BM_Zone_LoadAllTimeZonesCached);
void BM_Zone_TimeZoneImplGetImplicit(benchmark::State& state) {
cctz::time_zone tz; // implicit UTC
cctz::time_zone::Impl::get(tz);
while (state.KeepRunning()) {
cctz::time_zone::Impl::get(tz);
}
}
BENCHMARK(BM_Zone_TimeZoneImplGetImplicit);
void BM_Zone_TimeZoneImplGetExplicit(benchmark::State& state) {
cctz::time_zone tz = cctz::utc_time_zone(); // explicit UTC
cctz::time_zone::Impl::get(tz);
while (state.KeepRunning()) {
cctz::time_zone::Impl::get(tz);
}
}
BENCHMARK(BM_Zone_TimeZoneImplGetExplicit);
void BM_Zone_UTCTimeZone(benchmark::State& state) {
cctz::time_zone tz;
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::utc_time_zone());
}
}
BENCHMARK(BM_Zone_UTCTimeZone);
// In each "ToDateTime" benchmark we switch between two instants
// separated by at least one transition in order to defeat any
// internal caching of previous results (e.g., see local_time_hint_).
//
// The "UTC" variants use UTC instead of the Google/local time zone.
void BM_Time_ToDateTime_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = TestTimeZone();
std::chrono::system_clock::time_point tp =
std::chrono::system_clock::from_time_t(1384569027);
std::chrono::system_clock::time_point tp2 =
std::chrono::system_clock::from_time_t(1418962578);
while (state.KeepRunning()) {
std::swap(tp, tp2);
tp += std::chrono::seconds(1);
benchmark::DoNotOptimize(cctz::convert(tp, tz));
}
}
BENCHMARK(BM_Time_ToDateTime_CCTZ);
void BM_Time_ToDateTime_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
time_t t = 1384569027;
time_t t2 = 1418962578;
struct tm tm;
while (state.KeepRunning()) {
std::swap(t, t2);
t += 1;
#if defined(_WIN32) || defined(_WIN64)
benchmark::DoNotOptimize(localtime_s(&tm, &t));
#else
benchmark::DoNotOptimize(localtime_r(&t, &tm));
#endif
}
}
BENCHMARK(BM_Time_ToDateTime_Libc);
void BM_Time_ToDateTimeUTC_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = cctz::utc_time_zone();
std::chrono::system_clock::time_point tp =
std::chrono::system_clock::from_time_t(1384569027);
while (state.KeepRunning()) {
tp += std::chrono::seconds(1);
benchmark::DoNotOptimize(cctz::convert(tp, tz));
}
}
BENCHMARK(BM_Time_ToDateTimeUTC_CCTZ);
void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) {
time_t t = 1384569027;
struct tm tm;
while (state.KeepRunning()) {
t += 1;
#if defined(_WIN32) || defined(_WIN64)
benchmark::DoNotOptimize(gmtime_s(&tm, &t));
#else
benchmark::DoNotOptimize(gmtime_r(&t, &tm));
#endif
}
}
BENCHMARK(BM_Time_ToDateTimeUTC_Libc);
// In each "FromDateTime" benchmark we switch between two YMDhms
// values separated by at least one transition in order to defeat any
// internal caching of previous results (e.g., see time_local_hint_).
//
// The "UTC" variants use UTC instead of the Google/local time zone.
// The "Day0" variants require normalization of the day of month.
void BM_Time_FromDateTime_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = TestTimeZone();
int i = 0;
while (state.KeepRunning()) {
if ((i++ & 1) == 0) {
benchmark::DoNotOptimize(
cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz));
} else {
benchmark::DoNotOptimize(
cctz::convert(cctz::civil_second(2013, 11, 15, 18, 30, 27), tz));
}
}
}
BENCHMARK(BM_Time_FromDateTime_CCTZ);
void BM_Time_FromDateTime_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
int i = 0;
while (state.KeepRunning()) {
struct tm tm;
if ((i++ & 1) == 0) {
tm.tm_year = 2014 - 1900;
tm.tm_mon = 12 - 1;
tm.tm_mday = 18;
tm.tm_hour = 20;
tm.tm_min = 16;
tm.tm_sec = 18;
} else {
tm.tm_year = 2013 - 1900;
tm.tm_mon = 11 - 1;
tm.tm_mday = 15;
tm.tm_hour = 18;
tm.tm_min = 30;
tm.tm_sec = 27;
}
tm.tm_isdst = -1;
benchmark::DoNotOptimize(mktime(&tm));
}
}
BENCHMARK(BM_Time_FromDateTime_Libc);
void BM_Time_FromDateTimeUTC_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = cctz::utc_time_zone();
while (state.KeepRunning()) {
benchmark::DoNotOptimize(
cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz));
}
}
BENCHMARK(BM_Time_FromDateTimeUTC_CCTZ);
// There is no BM_Time_FromDateTimeUTC_Libc.
void BM_Time_FromDateTimeDay0_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = TestTimeZone();
int i = 0;
while (state.KeepRunning()) {
if ((i++ & 1) == 0) {
benchmark::DoNotOptimize(
cctz::convert(cctz::civil_second(2014, 12, 0, 20, 16, 18), tz));
} else {
benchmark::DoNotOptimize(
cctz::convert(cctz::civil_second(2013, 11, 0, 18, 30, 27), tz));
}
}
}
BENCHMARK(BM_Time_FromDateTimeDay0_CCTZ);
void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
int i = 0;
while (state.KeepRunning()) {
struct tm tm;
if ((i++ & 1) == 0) {
tm.tm_year = 2014 - 1900;
tm.tm_mon = 12 - 1;
tm.tm_mday = 0;
tm.tm_hour = 20;
tm.tm_min = 16;
tm.tm_sec = 18;
} else {
tm.tm_year = 2013 - 1900;
tm.tm_mon = 11 - 1;
tm.tm_mday = 0;
tm.tm_hour = 18;
tm.tm_min = 30;
tm.tm_sec = 27;
}
tm.tm_isdst = -1;
benchmark::DoNotOptimize(mktime(&tm));
}
}
BENCHMARK(BM_Time_FromDateTimeDay0_Libc);
const char* const kFormats[] = {
RFC1123_full, // 0
RFC1123_no_wday, // 1
RFC3339_full, // 2
RFC3339_sec, // 3
"%Y-%m-%dT%H:%M:%S", // 4
"%Y-%m-%d", // 5
};
const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]);
void BM_Format_FormatTime(benchmark::State& state) {
const std::string fmt = kFormats[state.range(0)];
state.SetLabel(fmt);
const cctz::time_zone tz = TestTimeZone();
const std::chrono::system_clock::time_point tp =
cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) +
std::chrono::microseconds(1);
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::format(fmt, tp, tz));
}
}
BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1);
void BM_Format_ParseTime(benchmark::State& state) {
const std::string fmt = kFormats[state.range(0)];
state.SetLabel(fmt);
const cctz::time_zone tz = TestTimeZone();
std::chrono::system_clock::time_point tp =
cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) +
std::chrono::microseconds(1);
const std::string when = cctz::format(fmt, tp, tz);
while (state.KeepRunning()) {
benchmark::DoNotOptimize(cctz::parse(fmt, when, tz, &tp));
}
}
BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1);
} // namespace

View file

@ -463,8 +463,13 @@ TEST(Format, ExtendedSecondOffset) {
EXPECT_TRUE(load_time_zone("Europe/Moscow", &tz));
tp = convert(civil_second(1919, 6, 30, 23, 59, 59), utc);
TestFormatSpecifier(tp, tz, "%E*z", "+04:31:19");
TestFormatSpecifier(tp, tz, "%Ez", "+04:31");
if (tz.lookup(tp).offset == 4 * 60 * 60) {
// We're likely dealing with zoneinfo that doesn't support really old
// timestamps, so Europe/Moscow never looks to be on local mean time.
} else {
TestFormatSpecifier(tp, tz, "%E*z", "+04:31:19");
TestFormatSpecifier(tp, tz, "%Ez", "+04:31");
}
tp += seconds(1);
TestFormatSpecifier(tp, tz, "%E*z", "+04:00:00");
}

View file

@ -193,6 +193,20 @@ cc_test(
],
)
cc_test(
name = "optional_exception_safety_test",
srcs = [
"optional_exception_safety_test.cc",
],
copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
deps = [
":optional",
"//absl/base:exception_safety_testing",
"@com_google_googletest//:gtest_main",
],
)
cc_library(
name = "variant",
srcs = ["internal/variant.h"],

View file

@ -209,3 +209,20 @@ absl_test(
)
# test optional_exception_safety_test
set(OPTIONAL_EXCEPTION_SAFETY_TEST_SRC "optional_exception_safety_test.cc")
set(OPTIONAL_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES
absl::optional
absl_base_internal_exception_safety_testing
)
absl_test(
TARGET
optional_exception_safety_test
SOURCES
${OPTIONAL_EXCEPTION_SAFETY_TEST_SRC}
PUBLIC_LIBRARIES
${OPTIONAL_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES}
PRIVATE_COMPILE_FLAGS
${ABSL_EXCEPTIONS_FLAG}
)

View file

@ -0,0 +1,284 @@
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "absl/types/optional.h"
#include "gtest/gtest.h"
#include "absl/base/internal/exception_safety_testing.h"
namespace absl {
namespace {
using ::testing::AssertionFailure;
using ::testing::AssertionResult;
using ::testing::AssertionSuccess;
using ::testing::MakeExceptionSafetyTester;
using Thrower = testing::ThrowingValue<testing::TypeSpec::kEverythingThrows>;
using Optional = absl::optional<Thrower>;
using MoveThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
using MoveOptional = absl::optional<MoveThrower>;
constexpr int kInitialInteger = 5;
constexpr int kUpdatedInteger = 10;
template <typename OptionalT>
bool ValueThrowsBadOptionalAccess(const OptionalT& optional) try {
return (static_cast<void>(optional.value()), false);
} catch (absl::bad_optional_access) {
return true;
}
template <typename OptionalT>
AssertionResult CheckInvariants(OptionalT* optional_ptr) {
// Check the current state post-throw for validity
auto& optional = *optional_ptr;
if (optional.has_value() && ValueThrowsBadOptionalAccess(optional)) {
return AssertionFailure()
<< "Optional with value should not throw bad_optional_access when "
"accessing the value.";
}
if (!optional.has_value() && !ValueThrowsBadOptionalAccess(optional)) {
return AssertionFailure()
<< "Optional without a value should throw bad_optional_access when "
"accessing the value.";
}
// Reset to a known state
optional.reset();
// Confirm that the known post-reset state is valid
if (optional.has_value()) {
return AssertionFailure()
<< "Optional should not contain a value after being reset.";
}
if (!ValueThrowsBadOptionalAccess(optional)) {
return AssertionFailure() << "Optional should throw bad_optional_access "
"when accessing the value after being reset.";
}
return AssertionSuccess();
}
template <typename OptionalT>
AssertionResult CheckDisengaged(OptionalT* optional_ptr) {
auto& optional = *optional_ptr;
if (optional.has_value()) {
return AssertionFailure()
<< "Expected optional to not contain a value but a value was found.";
}
return AssertionSuccess();
}
template <typename OptionalT>
AssertionResult CheckEngaged(OptionalT* optional_ptr) {
auto& optional = *optional_ptr;
if (!optional.has_value()) {
return AssertionFailure()
<< "Expected optional to contain a value but no value was found.";
}
return AssertionSuccess();
}
TEST(OptionalExceptionSafety, ThrowingConstructors) {
auto thrower_nonempty = Optional(Thrower(kInitialInteger));
testing::TestThrowingCtor<Optional>(thrower_nonempty);
auto integer_nonempty = absl::optional<int>(kInitialInteger);
testing::TestThrowingCtor<Optional>(integer_nonempty);
testing::TestThrowingCtor<Optional>(std::move(integer_nonempty)); // NOLINT
testing::TestThrowingCtor<Optional>(kInitialInteger);
using ThrowerVec = std::vector<Thrower, testing::ThrowingAllocator<Thrower>>;
testing::TestThrowingCtor<absl::optional<ThrowerVec>>(
absl::in_place,
std::initializer_list<Thrower>{Thrower(), Thrower(), Thrower()},
testing::ThrowingAllocator<Thrower>());
}
TEST(OptionalExceptionSafety, NothrowConstructors) {
// This constructor is marked noexcept. If it throws, the program will
// terminate.
testing::TestThrowingCtor<MoveOptional>(MoveOptional(kUpdatedInteger));
}
TEST(OptionalExceptionSafety, Emplace) {
// Test the basic guarantee plus test the result of optional::has_value()
// is false in all cases
auto disengaged_test = MakeExceptionSafetyTester().WithInvariants(
CheckInvariants<Optional>, CheckDisengaged<Optional>);
auto disengaged_test_empty = disengaged_test.WithInitialValue(Optional());
auto disengaged_test_nonempty =
disengaged_test.WithInitialValue(Optional(kInitialInteger));
auto emplace_thrower_directly = [](Optional* optional_ptr) {
optional_ptr->emplace(kUpdatedInteger);
};
EXPECT_TRUE(disengaged_test_empty.Test(emplace_thrower_directly));
EXPECT_TRUE(disengaged_test_nonempty.Test(emplace_thrower_directly));
auto emplace_thrower_copy = [](Optional* optional_ptr) {
auto thrower = Thrower(kUpdatedInteger, testing::nothrow_ctor);
optional_ptr->emplace(thrower);
};
EXPECT_TRUE(disengaged_test_empty.Test(emplace_thrower_copy));
EXPECT_TRUE(disengaged_test_nonempty.Test(emplace_thrower_copy));
}
TEST(OptionalExceptionSafety, EverythingThrowsSwap) {
// Test the basic guarantee plus test the result of optional::has_value()
// remains the same
auto test =
MakeExceptionSafetyTester().WithInvariants(CheckInvariants<Optional>);
auto disengaged_test_empty = test.WithInitialValue(Optional())
.WithInvariants(CheckDisengaged<Optional>);
auto engaged_test_nonempty = test.WithInitialValue(Optional(kInitialInteger))
.WithInvariants(CheckEngaged<Optional>);
auto swap_empty = [](Optional* optional_ptr) {
auto empty = Optional();
optional_ptr->swap(empty);
};
EXPECT_TRUE(engaged_test_nonempty.Test(swap_empty));
auto swap_nonempty = [](Optional* optional_ptr) {
auto nonempty =
Optional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
optional_ptr->swap(nonempty);
};
EXPECT_TRUE(disengaged_test_empty.Test(swap_nonempty));
EXPECT_TRUE(engaged_test_nonempty.Test(swap_nonempty));
}
TEST(OptionalExceptionSafety, NoThrowMoveSwap) {
// Tests the nothrow guarantee for optional of T with non-throwing move
auto nothrow_test =
MakeExceptionSafetyTester().WithInvariants(testing::nothrow_guarantee);
auto nothrow_test_empty = nothrow_test.WithInitialValue(MoveOptional());
auto nothrow_test_nonempty =
nothrow_test.WithInitialValue(MoveOptional(kInitialInteger));
auto swap_empty = [](MoveOptional* optional_ptr) {
auto empty = MoveOptional();
optional_ptr->swap(empty);
};
EXPECT_TRUE(nothrow_test_nonempty.Test(swap_empty));
auto swap_nonempty = [](MoveOptional* optional_ptr) {
auto nonempty =
MoveOptional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
optional_ptr->swap(nonempty);
};
EXPECT_TRUE(nothrow_test_empty.Test(swap_nonempty));
EXPECT_TRUE(nothrow_test_nonempty.Test(swap_nonempty));
}
TEST(OptionalExceptionSafety, CopyAssign) {
// Test the basic guarantee plus test the result of optional::has_value()
// remains the same
auto test =
MakeExceptionSafetyTester().WithInvariants(CheckInvariants<Optional>);
auto disengaged_test_empty = test.WithInitialValue(Optional())
.WithInvariants(CheckDisengaged<Optional>);
auto engaged_test_nonempty = test.WithInitialValue(Optional(kInitialInteger))
.WithInvariants(CheckEngaged<Optional>);
auto copyassign_nonempty = [](Optional* optional_ptr) {
auto nonempty =
Optional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
*optional_ptr = nonempty;
};
EXPECT_TRUE(disengaged_test_empty.Test(copyassign_nonempty));
EXPECT_TRUE(engaged_test_nonempty.Test(copyassign_nonempty));
auto copyassign_thrower = [](Optional* optional_ptr) {
auto thrower = Thrower(kUpdatedInteger, testing::nothrow_ctor);
*optional_ptr = thrower;
};
EXPECT_TRUE(disengaged_test_empty.Test(copyassign_thrower));
EXPECT_TRUE(engaged_test_nonempty.Test(copyassign_thrower));
}
TEST(OptionalExceptionSafety, MoveAssign) {
// Test the basic guarantee plus test the result of optional::has_value()
// remains the same
auto test =
MakeExceptionSafetyTester().WithInvariants(CheckInvariants<Optional>);
auto disengaged_test_empty = test.WithInitialValue(Optional())
.WithInvariants(CheckDisengaged<Optional>);
auto engaged_test_nonempty = test.WithInitialValue(Optional(kInitialInteger))
.WithInvariants(CheckEngaged<Optional>);
auto moveassign_empty = [](Optional* optional_ptr) {
auto empty = Optional();
*optional_ptr = std::move(empty);
};
EXPECT_TRUE(engaged_test_nonempty.Test(moveassign_empty));
auto moveassign_nonempty = [](Optional* optional_ptr) {
auto nonempty =
Optional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
*optional_ptr = std::move(nonempty);
};
EXPECT_TRUE(disengaged_test_empty.Test(moveassign_nonempty));
EXPECT_TRUE(engaged_test_nonempty.Test(moveassign_nonempty));
auto moveassign_thrower = [](Optional* optional_ptr) {
auto thrower = Thrower(kUpdatedInteger, testing::nothrow_ctor);
*optional_ptr = std::move(thrower);
};
EXPECT_TRUE(disengaged_test_empty.Test(moveassign_thrower));
EXPECT_TRUE(engaged_test_nonempty.Test(moveassign_thrower));
}
TEST(OptionalExceptionSafety, NothrowMoveAssign) {
// Tests the nothrow guarantee for optional of T with non-throwing move
auto nothrow_test =
MakeExceptionSafetyTester().WithInvariants(testing::nothrow_guarantee);
auto nothrow_test_empty = nothrow_test.WithInitialValue(MoveOptional());
auto nothrow_test_nonempty =
nothrow_test.WithInitialValue(MoveOptional(kInitialInteger));
auto moveassign_empty = [](MoveOptional* optional_ptr) {
auto empty = MoveOptional();
*optional_ptr = std::move(empty);
};
EXPECT_TRUE(nothrow_test_nonempty.Test(moveassign_empty));
auto moveassign_nonempty = [](MoveOptional* optional_ptr) {
auto nonempty =
MoveOptional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
*optional_ptr = std::move(nonempty);
};
EXPECT_TRUE(nothrow_test_empty.Test(moveassign_nonempty));
EXPECT_TRUE(nothrow_test_nonempty.Test(moveassign_nonempty));
auto moveassign_thrower = [](MoveOptional* optional_ptr) {
auto thrower = MoveThrower(kUpdatedInteger, testing::nothrow_ctor);
*optional_ptr = std::move(thrower);
};
EXPECT_TRUE(nothrow_test_empty.Test(moveassign_thrower));
EXPECT_TRUE(nothrow_test_nonempty.Test(moveassign_thrower));
}
} // namespace
} // namespace absl