nearby: snapshot of cl/313536507

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

cpp/platform_v2/api/submittable_executor.h

@@ -0,0 +1,33 @@
+#ifndef PLATFORM_V2_API_SUBMITTABLE_EXECUTOR_H_
+#define PLATFORM_V2_API_SUBMITTABLE_EXECUTOR_H_
+
+#include <functional>
+#include <memory>
+
+#include "platform_v2/api/executor.h"
+#include "platform_v2/api/future.h"
+#include "platform_v2/base/runnable.h"
+
+namespace location {
+namespace nearby {
+namespace api {
+
+// Main interface to be used by platform as a base class for
+// - MultiThreadExecutorWrapper
+// - SingleThreadExecutorWrapper
+// Platform must override bool submit(std::function<void()>) method.
+class SubmittableExecutor : public Executor {
+ public:
+  ~SubmittableExecutor() override = default;
+
+  // Submit a callable (with no delay).
+  // Returns true, if callable was submitted, false otherwise.
+  // Callable is not submitted if shutdown is in progress.
+  virtual bool DoSubmit(Runnable&& wrapped_callable) = 0;
+};
+
+}  // namespace api
+}  // namespace nearby
+}  // namespace location
+
+#endif  // PLATFORM_V2_API_SUBMITTABLE_EXECUTOR_H_