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-rw-r--r--third_party/abseil_cpp/absl/base/internal/thread_identity_test.cc129
1 files changed, 0 insertions, 129 deletions
diff --git a/third_party/abseil_cpp/absl/base/internal/thread_identity_test.cc b/third_party/abseil_cpp/absl/base/internal/thread_identity_test.cc
deleted file mode 100644
index 624d5b96b6..0000000000
--- a/third_party/abseil_cpp/absl/base/internal/thread_identity_test.cc
+++ /dev/null
@@ -1,129 +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
-//
-//      https://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/base/internal/thread_identity.h"
-
-#include <thread>  // NOLINT(build/c++11)
-#include <vector>
-
-#include "gtest/gtest.h"
-#include "absl/base/attributes.h"
-#include "absl/base/internal/spinlock.h"
-#include "absl/base/macros.h"
-#include "absl/base/thread_annotations.h"
-#include "absl/synchronization/internal/per_thread_sem.h"
-#include "absl/synchronization/mutex.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace base_internal {
-namespace {
-
-ABSL_CONST_INIT static absl::base_internal::SpinLock map_lock(
-    absl::kConstInit, base_internal::SCHEDULE_KERNEL_ONLY);
-ABSL_CONST_INIT static int num_identities_reused ABSL_GUARDED_BY(map_lock);
-
-static const void* const kCheckNoIdentity = reinterpret_cast<void*>(1);
-
-static void TestThreadIdentityCurrent(const void* assert_no_identity) {
-  ThreadIdentity* identity;
-
-  // We have to test this conditionally, because if the test framework relies
-  // on Abseil, then some previous action may have already allocated an
-  // identity.
-  if (assert_no_identity == kCheckNoIdentity) {
-    identity = CurrentThreadIdentityIfPresent();
-    EXPECT_TRUE(identity == nullptr);
-  }
-
-  identity = synchronization_internal::GetOrCreateCurrentThreadIdentity();
-  EXPECT_TRUE(identity != nullptr);
-  ThreadIdentity* identity_no_init;
-  identity_no_init = CurrentThreadIdentityIfPresent();
-  EXPECT_TRUE(identity == identity_no_init);
-
-  // Check that per_thread_synch is correctly aligned.
-  EXPECT_EQ(0, reinterpret_cast<intptr_t>(&identity->per_thread_synch) %
-                   PerThreadSynch::kAlignment);
-  EXPECT_EQ(identity, identity->per_thread_synch.thread_identity());
-
-  absl::base_internal::SpinLockHolder l(&map_lock);
-  num_identities_reused++;
-}
-
-TEST(ThreadIdentityTest, BasicIdentityWorks) {
-  // This tests for the main() thread.
-  TestThreadIdentityCurrent(nullptr);
-}
-
-TEST(ThreadIdentityTest, BasicIdentityWorksThreaded) {
-  // Now try the same basic test with multiple threads being created and
-  // destroyed.  This makes sure that:
-  // - New threads are created without a ThreadIdentity.
-  // - We re-allocate ThreadIdentity objects from the free-list.
-  // - If a thread implementation chooses to recycle threads, that
-  //   correct re-initialization occurs.
-  static const int kNumLoops = 3;
-  static const int kNumThreads = 400;
-  for (int iter = 0; iter < kNumLoops; iter++) {
-    std::vector<std::thread> threads;
-    for (int i = 0; i < kNumThreads; ++i) {
-      threads.push_back(
-          std::thread(TestThreadIdentityCurrent, kCheckNoIdentity));
-    }
-    for (auto& thread : threads) {
-      thread.join();
-    }
-  }
-
-  // We should have recycled ThreadIdentity objects above; while (external)
-  // library threads allocating their own identities may preclude some
-  // reuse, we should have sufficient repetitions to exclude this.
-  absl::base_internal::SpinLockHolder l(&map_lock);
-  EXPECT_LT(kNumThreads, num_identities_reused);
-}
-
-TEST(ThreadIdentityTest, ReusedThreadIdentityMutexTest) {
-  // This test repeatly creates and joins a series of threads, each of
-  // which acquires and releases shared Mutex locks. This verifies
-  // Mutex operations work correctly under a reused
-  // ThreadIdentity. Note that the most likely failure mode of this
-  // test is a crash or deadlock.
-  static const int kNumLoops = 10;
-  static const int kNumThreads = 12;
-  static const int kNumMutexes = 3;
-  static const int kNumLockLoops = 5;
-
-  Mutex mutexes[kNumMutexes];
-  for (int iter = 0; iter < kNumLoops; ++iter) {
-    std::vector<std::thread> threads;
-    for (int thread = 0; thread < kNumThreads; ++thread) {
-      threads.push_back(std::thread([&]() {
-        for (int l = 0; l < kNumLockLoops; ++l) {
-          for (int m = 0; m < kNumMutexes; ++m) {
-            MutexLock lock(&mutexes[m]);
-          }
-        }
-      }));
-    }
-    for (auto& thread : threads) {
-      thread.join();
-    }
-  }
-}
-
-}  // namespace
-}  // namespace base_internal
-ABSL_NAMESPACE_END
-}  // namespace absl