Files
nearby/cpp/platform/api/future.h
T
Alexey Polyudov 2155b3ddeb Roll forward to cl/338482889
Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I9850950db8bd84f0904ea1a413151887f52098cf
2020-10-22 10:47:34 -07:00

33 lines
818 B
C++

#ifndef PLATFORM_API_FUTURE_H_
#define PLATFORM_API_FUTURE_H_
#include "platform/base/exception.h"
#include "absl/time/clock.h"
namespace location {
namespace nearby {
namespace api {
// A Future represents the result of an asynchronous computation.
//
// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Future.html
template <typename T>
class Future {
public:
virtual ~Future() = default;
// throws Exception::kInterrupted, Exception::kExecution
virtual ExceptionOr<T> Get() = 0;
// throws Exception::kInterrupted, Exception::kExecution
// throws Exception::kTimeout if timeout is exceeded while waiting for
// result.
virtual ExceptionOr<T> Get(absl::Duration timeout) = 0;
};
} // namespace api
} // namespace nearby
} // namespace location
#endif // PLATFORM_API_FUTURE_H_