1 files changed, 0 insertions, 107 deletions
diff --git a/third_party/abseil_cpp/absl/base/internal/low_level_scheduling.h b/third_party/abseil_cpp/absl/base/internal/low_level_scheduling.h
deleted file mode 100644
index 961cc981b8..0000000000
--- a/third_party/abseil_cpp/absl/base/internal/low_level_scheduling.h
+++ /dev/null
@@ -1,107 +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.
-//
-// Core interfaces and definitions used by by low-level interfaces such as
-// SpinLock.
-
-#ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
-#define ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
-
-#include "absl/base/internal/scheduling_mode.h"
-#include "absl/base/macros.h"
-
-// The following two declarations exist so SchedulingGuard may friend them with
-// the appropriate language linkage.  These callbacks allow libc internals, such
-// as function level statics, to schedule cooperatively when locking.
-extern "C" bool __google_disable_rescheduling(void);
-extern "C" void __google_enable_rescheduling(bool disable_result);
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace base_internal {
-
-class SchedulingHelper;  // To allow use of SchedulingGuard.
-class SpinLock;          // To allow use of SchedulingGuard.
-
-// SchedulingGuard
-// Provides guard semantics that may be used to disable cooperative rescheduling
-// of the calling thread within specific program blocks.  This is used to
-// protect resources (e.g. low-level SpinLocks or Domain code) that cooperative
-// scheduling depends on.
-//
-// Domain implementations capable of rescheduling in reaction to involuntary
-// kernel thread actions (e.g blocking due to a pagefault or syscall) must
-// guarantee that an annotated thread is not allowed to (cooperatively)
-// reschedule until the annotated region is complete.
-//
-// It is an error to attempt to use a cooperatively scheduled resource (e.g.
-// Mutex) within a rescheduling-disabled region.
-//
-// All methods are async-signal safe.
-class SchedulingGuard {
- public:
-  // Returns true iff the calling thread may be cooperatively rescheduled.
-  static bool ReschedulingIsAllowed();
-
- private:
-  // Disable cooperative rescheduling of the calling thread.  It may still
-  // initiate scheduling operations (e.g. wake-ups), however, it may not itself
-  // reschedule.  Nestable.  The returned result is opaque, clients should not
-  // attempt to interpret it.
-  // REQUIRES: Result must be passed to a pairing EnableScheduling().
-  static bool DisableRescheduling();
-
-  // Marks the end of a rescheduling disabled region, previously started by
-  // DisableRescheduling().
-  // REQUIRES: Pairs with innermost call (and result) of DisableRescheduling().
-  static void EnableRescheduling(bool disable_result);
-
-  // A scoped helper for {Disable, Enable}Rescheduling().
-  // REQUIRES: destructor must run in same thread as constructor.
-  struct ScopedDisable {
-    ScopedDisable() { disabled = SchedulingGuard::DisableRescheduling(); }
-    ~ScopedDisable() { SchedulingGuard::EnableRescheduling(disabled); }
-
-    bool disabled;
-  };
-
-  // Access to SchedulingGuard is explicitly white-listed.
-  friend class SchedulingHelper;
-  friend class SpinLock;
-
-  SchedulingGuard(const SchedulingGuard&) = delete;
-  SchedulingGuard& operator=(const SchedulingGuard&) = delete;
-};
-
-//------------------------------------------------------------------------------
-// End of public interfaces.
-//------------------------------------------------------------------------------
-
-inline bool SchedulingGuard::ReschedulingIsAllowed() {
-  return false;
-}
-
-inline bool SchedulingGuard::DisableRescheduling() {
-  return false;
-}
-
-inline void SchedulingGuard::EnableRescheduling(bool /* disable_result */) {
-  return;
-}
-
-}  // namespace base_internal
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_