mirror of
https://github.com/kidfromjupiter/nearby.git
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Alexey Polyudov
2155b3ddeb
Signed-off-by: Alexey Polyudov <apolyudov@google.com> Change-Id: I9850950db8bd84f0904ea1a413151887f52098cf
36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
#ifndef PLATFORM_API_SETTABLE_FUTURE_H_
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#define PLATFORM_API_SETTABLE_FUTURE_H_
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#include "platform/api/listenable_future.h"
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#include "platform/base/exception.h"
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namespace location {
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namespace nearby {
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namespace api {
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// A SettableFuture is a type of Future whose result can be set.
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//
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// https://google.github.io/guava/releases/20.0/api/docs/com/google/common/util/concurrent/SettableFuture.html
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template <typename T>
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class SettableFuture : public ListenableFuture<T> {
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public:
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~SettableFuture() override = default;
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// Completes the future successfully. The value is returned to any waiters.
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// Returns true, if value was set.
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// Returns false, if Future is already in "done" state.
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virtual bool Set(T value) = 0;
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// Completes the future unsuccessfully. The exception value is returned to any
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// waiters.
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// Returns true, if exception was set.
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// Returns false, if Future is already in "done" state.
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virtual bool SetException(Exception exception) = 0;
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};
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} // namespace api
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} // namespace nearby
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} // namespace location
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#endif // PLATFORM_API_SETTABLE_FUTURE_H_
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