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merge(3p/absl): subtree merge of Abseil up to e19260f

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... notably, this includes Abseil's own StatusOr type, which
conflicted with our implementation (that was taken from TensorFlow).

Change-Id: Ie7d6764b64055caaeb8dc7b6b9d066291e6b538f
This commit is contained in:
Vincent Ambo 2020-11-21 14:43:54 +01:00
parent cc27324d02
commit 082c006c04
854 changed files with 11260 additions and 5296 deletions
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47
third_party/abseil_cpp/absl/synchronization/mutex_test.cc vendored
View file

@ -30,6 +30,7 @@
#include "gtest/gtest.h"
#include "absl/base/attributes.h"
#include "absl/base/config.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/base/internal/sysinfo.h"
#include "absl/memory/memory.h"
@ -706,6 +707,40 @@ TEST(Mutex, LockWhen) {
t.join();
}
TEST(Mutex, LockWhenGuard) {
absl::Mutex mu;
int n = 30;
bool done = false;
// We don't inline the lambda because the conversion is ambiguous in MSVC.
bool (*cond_eq_10)(int *) = [](int *p) { return *p == 10; };
bool (*cond_lt_10)(int *) = [](int *p) { return *p < 10; };
std::thread t1([&mu, &n, &done, cond_eq_10]() {
absl::ReaderMutexLock lock(&mu, absl::Condition(cond_eq_10, &n));
done = true;
});
std::thread t2[10];
for (std::thread &t : t2) {
t = std::thread([&mu, &n, cond_lt_10]() {
absl::WriterMutexLock lock(&mu, absl::Condition(cond_lt_10, &n));
++n;
});
}
{
absl::MutexLock lock(&mu);
n = 0;
}
for (std::thread &t : t2) t.join();
t1.join();
EXPECT_TRUE(done);
EXPECT_EQ(n, 10);
}
// --------------------------------------------------------
// The following test requires Mutex::ReaderLock to be a real shared
// lock, which is not the case in all builds.
@ -815,7 +850,7 @@ TEST(Mutex, MutexReaderDecrementBug) ABSL_NO_THREAD_SAFETY_ANALYSIS {
// Test that we correctly handle the situation when a lock is
// held and then destroyed (w/o unlocking).
#ifdef THREAD_SANITIZER
#ifdef ABSL_HAVE_THREAD_SANITIZER
// TSAN reports errors when locked Mutexes are destroyed.
TEST(Mutex, DISABLED_LockedMutexDestructionBug) NO_THREAD_SAFETY_ANALYSIS {
#else
@ -1001,9 +1036,6 @@ TEST(Mutex, AcquireFromCondition) {
x.mu0.Unlock();
}
// The deadlock detector is not part of non-prod builds, so do not test it.
#if !defined(ABSL_INTERNAL_USE_NONPROD_MUTEX)
TEST(Mutex, DeadlockDetector) {
absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kAbort);
@ -1067,7 +1099,7 @@ class ScopedDisableBazelTestWarnings {
const char ScopedDisableBazelTestWarnings::kVarName[] =
"TEST_WARNINGS_OUTPUT_FILE";
#ifdef THREAD_SANITIZER
#ifdef ABSL_HAVE_THREAD_SANITIZER
// This test intentionally creates deadlocks to test the deadlock detector.
TEST(Mutex, DISABLED_DeadlockDetectorBazelWarning) {
#else
@ -1101,7 +1133,7 @@ TEST(Mutex, DeadlockDetectorBazelWarning) {
// annotation-based static thread-safety analysis is not currently
// predicate-aware and cannot tell if the two for-loops that acquire and
// release the locks have the same predicates.
TEST(Mutex, DeadlockDetectorStessTest) ABSL_NO_THREAD_SAFETY_ANALYSIS {
TEST(Mutex, DeadlockDetectorStressTest) ABSL_NO_THREAD_SAFETY_ANALYSIS {
// Stress test: Here we create a large number of locks and use all of them.
// If a deadlock detector keeps a full graph of lock acquisition order,
// it will likely be too slow for this test to pass.
@ -1119,7 +1151,7 @@ TEST(Mutex, DeadlockDetectorStessTest) ABSL_NO_THREAD_SAFETY_ANALYSIS {
}
}
#ifdef THREAD_SANITIZER
#ifdef ABSL_HAVE_THREAD_SANITIZER
// TSAN reports errors when locked Mutexes are destroyed.
TEST(Mutex, DISABLED_DeadlockIdBug) NO_THREAD_SAFETY_ANALYSIS {
#else
@ -1157,7 +1189,6 @@ TEST(Mutex, DeadlockIdBug) ABSL_NO_THREAD_SAFETY_ANALYSIS {
c.Lock();
c.Unlock();
}
#endif // !defined(ABSL_INTERNAL_USE_NONPROD_MUTEX)
// --------------------------------------------------------
// Test for timeouts/deadlines on condition waits that are specified using