caosdb/file_transmission/download_request_handler.h

namespace caosdb

namespace transaction

Creation and execution of transactions.

Author: Timm Fitschen
Date: 2021-08-05

class DownloadRequestHandler : public caosdb::transaction::HandlerInterface 

Public Functions

DownloadRequestHandler(HandlerTag tag, FileTransmissionService::Stub *stub, grpc::CompletionQueue *cq, FileDescriptor file_descriptor)

~DownloadRequestHandler() override = default

DownloadRequestHandler(const DownloadRequestHandler&) = delete

DownloadRequestHandler &operator=(const DownloadRequestHandler&) = delete

DownloadRequestHandler(DownloadRequestHandler&&) = delete

DownloadRequestHandler &operator=(DownloadRequestHandler&&) = delete

inline virtual void Start() override

virtual bool OnNext(bool ok) override

virtual void Cancel() override

Protected Types

enum CallState

Values:

enumerator NewCall

enumerator SendingRequest

enumerator ReceivingFile

enumerator CallComplete

Protected Functions

void handleNewCallState()

void handleSendingRequestState()

void handleReceivingFileState()

void handleCallCompleteState()

Protected Attributes

HandlerTag tag_

FileTransmissionService::Stub *stub_

grpc::CompletionQueue *cq_

grpc::ClientContext ctx_

std::unique_ptr<grpc::ClientAsyncReader<FileDownloadResponse>> rpc_

FileDownloadRequest *request_

FileDownloadResponse *response_

grpc::Status status_

CallState state_

std::unique_ptr<FileWriter> fileWriter_

FileDescriptor file_descriptor_

uint64_t bytesReceived_