nearby sdk refactor

PiperOrigin-RevId: 425434260

internal/platform/implementation/windows/condition_variable.h

@@ -0,0 +1,55 @@
+// Copyright 2021 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 <windows.h>
+#include <stdio.h>
+#include <synchapi.h>
+
+#include <mutex>  //  NOLINT
+
+#include "internal/platform/implementation/condition_variable.h"
+#include "internal/platform/implementation/windows/mutex.h"
+#include "internal/platform/mutex.h"
+
+namespace location {
+namespace nearby {
+namespace windows {
+
+class ConditionVariable : public api::ConditionVariable {
+ public:
+  explicit ConditionVariable(api::Mutex* mutex)
+      : mutex_(&(static_cast<windows::Mutex*>(mutex))->mutex_) {}
+  ~ConditionVariable() override = default;
+
+  Exception Wait() override {
+    cond_var_.Wait(mutex_);
+    return {Exception::kSuccess};
+  }
+
+  Exception Wait(absl::Duration timeout) override {
+    cond_var_.WaitWithTimeout(mutex_, timeout);
+    return {Exception::kSuccess};
+  }
+
+  void Notify() override { cond_var_.SignalAll(); }
+
+ private:
+  absl::Mutex* mutex_;
+  absl::CondVar cond_var_;
+};
+}  // namespace windows
+}  // namespace nearby
+}  // namespace location
+#endif  // PLATFORM_IMPL_WINDOWS_CONDITION_VARIABLE_H_