1 files changed, 0 insertions, 106 deletions
diff --git a/third_party/abseil_cpp/absl/synchronization/internal/per_thread_sem.cc b/third_party/abseil_cpp/absl/synchronization/internal/per_thread_sem.cc
deleted file mode 100644
index 821ca9b4e9..0000000000
--- a/third_party/abseil_cpp/absl/synchronization/internal/per_thread_sem.cc
+++ /dev/null
@@ -1,106 +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.
-
-// This file is a no-op if the required LowLevelAlloc support is missing.
-#include "absl/base/internal/low_level_alloc.h"
-#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING
-
-#include "absl/synchronization/internal/per_thread_sem.h"
-
-#include <atomic>
-
-#include "absl/base/attributes.h"
-#include "absl/base/internal/thread_identity.h"
-#include "absl/synchronization/internal/waiter.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace synchronization_internal {
-
-void PerThreadSem::SetThreadBlockedCounter(std::atomic<int> *counter) {
-  base_internal::ThreadIdentity *identity;
-  identity = GetOrCreateCurrentThreadIdentity();
-  identity->blocked_count_ptr = counter;
-}
-
-std::atomic<int> *PerThreadSem::GetThreadBlockedCounter() {
-  base_internal::ThreadIdentity *identity;
-  identity = GetOrCreateCurrentThreadIdentity();
-  return identity->blocked_count_ptr;
-}
-
-void PerThreadSem::Init(base_internal::ThreadIdentity *identity) {
-  new (Waiter::GetWaiter(identity)) Waiter();
-  identity->ticker.store(0, std::memory_order_relaxed);
-  identity->wait_start.store(0, std::memory_order_relaxed);
-  identity->is_idle.store(false, std::memory_order_relaxed);
-}
-
-void PerThreadSem::Destroy(base_internal::ThreadIdentity *identity) {
-  Waiter::GetWaiter(identity)->~Waiter();
-}
-
-void PerThreadSem::Tick(base_internal::ThreadIdentity *identity) {
-  const int ticker =
-      identity->ticker.fetch_add(1, std::memory_order_relaxed) + 1;
-  const int wait_start = identity->wait_start.load(std::memory_order_relaxed);
-  const bool is_idle = identity->is_idle.load(std::memory_order_relaxed);
-  if (wait_start && (ticker - wait_start > Waiter::kIdlePeriods) && !is_idle) {
-    // Wakeup the waiting thread since it is time for it to become idle.
-    Waiter::GetWaiter(identity)->Poke();
-  }
-}
-
-}  // namespace synchronization_internal
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-extern "C" {
-
-ABSL_ATTRIBUTE_WEAK void AbslInternalPerThreadSemPost(
-    absl::base_internal::ThreadIdentity *identity) {
-  absl::synchronization_internal::Waiter::GetWaiter(identity)->Post();
-}
-
-ABSL_ATTRIBUTE_WEAK bool AbslInternalPerThreadSemWait(
-    absl::synchronization_internal::KernelTimeout t) {
-  bool timeout = false;
-  absl::base_internal::ThreadIdentity *identity;
-  identity = absl::synchronization_internal::GetOrCreateCurrentThreadIdentity();
-
-  // Ensure wait_start != 0.
-  int ticker = identity->ticker.load(std::memory_order_relaxed);
-  identity->wait_start.store(ticker ? ticker : 1, std::memory_order_relaxed);
-  identity->is_idle.store(false, std::memory_order_relaxed);
-
-  if (identity->blocked_count_ptr != nullptr) {
-    // Increment count of threads blocked in a given thread pool.
-    identity->blocked_count_ptr->fetch_add(1, std::memory_order_relaxed);
-  }
-
-  timeout =
-      !absl::synchronization_internal::Waiter::GetWaiter(identity)->Wait(t);
-
-  if (identity->blocked_count_ptr != nullptr) {
-    identity->blocked_count_ptr->fetch_sub(1, std::memory_order_relaxed);
-  }
-
-  identity->is_idle.store(false, std::memory_order_relaxed);
-  identity->wait_start.store(0, std::memory_order_relaxed);
-  return !timeout;
-}
-
-}  // extern "C"
-
-#endif  // ABSL_LOW_LEVEL_ALLOC_MISSING