Export of internal Abseil changes

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f6fbb03bff276e72123e8590519079e87732ae62 by Abseil Team <absl-team@google.com>:

Replace static absl::Mutex with SpinLock in absl::Cords

to avoid static initializers by absl::Mutex destructors

PiperOrigin-RevId: 370694199

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654b7d9edfdc24f226990b2b46cbf91451a1d92a by Martijn Vels <mvels@google.com>:

Implement global data for CordzInfo in an ODR hardened way

This change puts the global data into a global list structure, and stores a reference to the global list in the handle itself. This hardens the implementation against ODR violations where info pointers are crossing dynamic library boundaries which are privately loaded.

PiperOrigin-RevId: 370673045

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712dba768e66ee2ba85d6010829c617cd2af6ba7 by Martijn Vels <mvels@google.com>:

Intrument Cord::operator= for Cordz

PiperOrigin-RevId: 370659149

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c0b347a2289e151b72680269332e264b8fa989c0 by Matt Kulukundis <kfm@google.com>:

Fix test guards for ABSL_ATTRIBUTE_RETURNS_NONNULL

PiperOrigin-RevId: 370594807

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c2bedaa3472ef223f907de2604f9b9b58852ec5f by Martijn Vels <mvels@google.com>:

Add new Cordz instrumentation on GetAppendRegion.

PiperOrigin-RevId: 370587761

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84fbfcc852697d509f6094482b86e84743a6b331 by Martijn Vels <mvels@google.com>:

Add instrumentation on Cord::Apppend(string_view)

PiperOrigin-RevId: 370576590

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9e077390b8ca2239e1cb7bfbe1d5a04f2fc11d30 by Abseil Team <absl-team@google.com>:

Google-internal changes only.

PiperOrigin-RevId: 370558424

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fb53c149eb2364ea34e3a67235f873866618b8ac by Matt Kulukundis <kfm@google.com>:

Update config.h macros with a few useful helpers to simplify version checking

PiperOrigin-RevId: 370557684

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abf8142e99b9ff7e15f6528a357f1005461950b0 by Martijn Vels <mvels@google.com>:

clang-format cord

PiperOrigin-RevId: 370549371

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e555985eabe63fcf0e980e9c433dd84caffec191 by Martijn Vels <mvels@google.com>:

Add MaybeUntrackCord() function

This function is near identical to the old UntrackCord() but allows info to be null, moving the cord.is_profiled() branch into CordzInfo.

PiperOrigin-RevId: 370528447

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3883538efe4601f7864bda70a50d868bb383c63b by Derek Mauro <dmauro@google.com>:

Internal change

PiperOrigin-RevId: 370503186

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a9514b65542fde1bc73584e6f3c1c4b3a05f215f by Derek Mauro <dmauro@google.com>:

Add -Winvalid-constexpr to warning options for LLVM

PiperOrigin-RevId: 370455171

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d8a3966de2cf15a2dc28e17e49a3d27d205eca92 by Martijn Vels <mvels@google.com>:

Add naive UniqueGenerator<T, kMaxValues, ...> to avoid flakes from dup random values.

PiperOrigin-RevId: 370179772

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46d0caa1a12b68a5998d4f919e20f0f83b9286f8 by Martijn Vels <mvels@google.com>:

Add new Cordz instrumentation on PrependTree.

PiperOrigin-RevId: 370138969
GitOrigin-RevId: f6fbb03bff276e72123e8590519079e87732ae62
Change-Id: Ifa4c00a5c7b01198ee367a3253bea6b66612135e

1 files changed, 6 insertions, 1 deletions

diff --git a/absl/strings/cordz_test_helpers.h b/absl/strings/cordz_test_helpers.h
index 453c2f9d..d9573c97 100644
--- a/absl/strings/cordz_test_helpers.h
+++ b/absl/strings/cordz_test_helpers.h
@@ -15,6 +15,8 @@
 #ifndef ABSL_STRINGS_CORDZ_TEST_HELPERS_H_
 #define ABSL_STRINGS_CORDZ_TEST_HELPERS_H_
 
+#include <utility>
+
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 #include "absl/base/config.h"
@@ -32,6 +34,7 @@ ABSL_NAMESPACE_BEGIN
 // Returns the CordzInfo for the cord, or nullptr if the cord is not sampled.
 inline const cord_internal::CordzInfo* GetCordzInfoForTesting(
     const Cord& cord) {
+  if (cord.size() <= cord_internal::kMaxInline) return nullptr;
   return cord.contents_.cordz_info();
 }
 
@@ -44,11 +47,13 @@ inline bool CordzInfoIsListed(const cord_internal::CordzInfo* cordz_info,
   return false;
 }
 
-// Matcher on Cord that verifies all of:
+// Matcher on Cord* that verifies all of:
 // - the cord is sampled
 // - the CordzInfo of the cord is listed / discoverable.
 // - the reported CordzStatistics match the cord's actual properties
 // - the cord has an (initial) UpdateTracker count of 1 for `method`
+// This matcher accepts a const Cord* to avoid having the matcher dump
+// copious amounts of cord data on failures.
 MATCHER_P(HasValidCordzInfoOf, method, "CordzInfo matches cord") {
   const cord_internal::CordzInfo* cord_info = GetCordzInfoForTesting(arg);
   if (cord_info == nullptr) {