text: // Copyright 2020 Google LLC
  //
  // 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.
  
  #ifndef PLATFORM_IMPL_WINDOWS_CONDITION_VARIABLE_H_
  #define PLATFORM_IMPL_WINDOWS_CONDITION_VARIABLE_H_
  
  #include "platform/api/condition_variable.h"
  
  namespace location {
  namespace nearby {
  namespace windows {
  
  // The ConditionVariable class is a synchronization primitive that can be used
  // to block a thread, or multiple threads at the same time, until another thread
  // both modifies a shared variable (the condition), and notifies the
  // ConditionVariable.
  class ConditionVariable : public api::ConditionVariable {
   public:
    // TODO(b/184975123): replace with real implementation.
    ~ConditionVariable() override = default;
  
    // Notifies all the waiters that condition state has changed.
    // TODO(b/184975123): replace with real implementation.
    void Notify() override {}
  
    // Waits indefinitely for Notify to be called.
    // May return prematurely in case of interrupt, if supported by platform.
    // Returns kSuccess, or kInterrupted on interrupt.
    // TODO(b/184975123): replace with real implementation.
    Exception Wait() override { return Exception{}; }
  
    // Waits while timeout has not expired for Notify to be called.
    // May return prematurely in case of interrupt, if supported by platform.
    // Returns kSuccess, or kInterrupted on interrupt.
    // TODO(b/184975123): replace with real implementation.
    Exception Wait(absl::Duration timeout) override { return Exception{}; }
  };
  
  }  // namespace windows
  }  // namespace nearby
  }  // namespace location
  
  #endif  // PLATFORM_IMPL_WINDOWS_CONDITION_VARIABLE_H_
  