HandleImpls.h

 
#pragma once
 
#include <aws/s3-transfer/internal/TransferState.h>
#include <aws/core/Core_EXPORTS.h>
#include <aws/crt/s3/S3.h>
#include <future>
#include <memory>
 
namespace Aws {
namespace S3 {
namespace Transfer {
 
template <typename OutcomeT, typename StateT>
class AWS_CORE_LOCAL TransferHandleImpl {
 public:
  virtual ~TransferHandleImpl() = default;
 
  std::future<OutcomeT> future;
  std::shared_ptr<StateT> state;
  // Set before the handle is handed out and never reassigned, so Cancel() needs no lock. Null when
  // the transfer failed before a meta request existed.
  std::shared_ptr<Aws::Crt::S3::S3MetaRequest> metaRequest;
 
  TransferHandleImpl() = default;
  TransferHandleImpl(const TransferHandleImpl&) = delete;
  TransferHandleImpl& operator=(const TransferHandleImpl&) = delete;
  TransferHandleImpl(TransferHandleImpl&&) = delete;
  TransferHandleImpl& operator=(TransferHandleImpl&&) = delete;
};
 
class AWS_CORE_LOCAL UploadHandleImpl final : public TransferHandleImpl<UploadOutcome, UploadTransferState> {};
class AWS_CORE_LOCAL DownloadHandleImpl final : public TransferHandleImpl<DownloadOutcome, DownloadTransferState> {};
 
}  // namespace Transfer
}  // namespace S3
}  // namespace Aws