nearby: snapshot of cl/313536507

Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I8936b527079074d5c3af5531b9245063767cc4a7

cpp/platform_v2/public/multi_thread_executor.h

@@ -0,0 +1,28 @@
+#ifndef PLATFORM_V2_PUBLIC_MULTI_THREAD_EXECUTOR_H_
+#define PLATFORM_V2_PUBLIC_MULTI_THREAD_EXECUTOR_H_
+
+#include "platform_v2/api/platform.h"
+#include "platform_v2/public/submittable_executor.h"
+
+namespace location {
+namespace nearby {
+
+// An Executor that reuses a fixed number of threads operating off a shared
+// unbounded queue.
+//
+// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Executors.html#newFixedThreadPool-int-
+class MultiThreadExecutor final : public SubmittableExecutor {
+ public:
+  using Platform = api::ImplementationPlatform;
+  explicit MultiThreadExecutor(int max_parallelism)
+      : SubmittableExecutor(
+            Platform::CreateMultiThreadExecutor(max_parallelism)) {}
+  MultiThreadExecutor(MultiThreadExecutor&&) = default;
+  MultiThreadExecutor& operator=(MultiThreadExecutor&&) = default;
+  ~MultiThreadExecutor() override = default;
+};
+
+}  // namespace nearby
+}  // namespace location
+
+#endif  // PLATFORM_V2_PUBLIC_MULTI_THREAD_EXECUTOR_H_