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Face Engine SDK
5.15.0
A face detection, recognition and tracking engine.
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Promise class to support asynchronous data retrieval Look into std::promise semantics to understand it. More...
#include <Future.h>
Public Types | |
| using | Error = PromiseError |
| Alias for associated error type. | |
| using | DataType = T |
| Alias for stored data type. | |
Public Member Functions | |
| Promise () noexcept | |
| Constructor for empty Promise. | |
| Promise (Promise &&) noexcept | |
| Promise & | operator= (Promise &&) noexcept |
| Result< Error > | cancel () noexcept |
| Cancel method. Think of it as acceptance of cancel requested by. More... | |
| Result< Error > | fail () noexcept |
| Fail method. Think of it as valid failure to run some promised function. Only makes sense if underlying state is Promised. More... | |
| Result< Error > | fulfill (DataType &&promisedData) noexcept |
| Fulfill promise with data. Only makes sense if underlying state is Promised. More... | |
| Future< DataType > | future (Result< Error > &error) noexcept |
| Create tethered future object. Only makes sense if underlying state is Empty. More... | |
| FuturePromiseState | state () const noexcept |
| Returns current state of future-promise pair. More... | |
Static Public Member Functions | |
| static void | swap (Promise &first, Promise &second) noexcept |
| Static method that swaps internal data between two passed promises. | |
Promise class to support asynchronous data retrieval Look into std::promise semantics to understand it.
| T | data type to store. |
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noexcept |
Cancel method. Think of it as acceptance of cancel requested by.
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noexcept |
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noexcept |
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noexcept |
Create tethered future object. Only makes sense if underlying state is Empty.
| error | Reference to error object to indicate of failure |
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noexcept |