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#include "file_writer.h"
#include <yt/cpp/mapreduce/io/helpers.h>
#include <yt/cpp/mapreduce/interface/finish_or_die.h>
#include <yt/cpp/mapreduce/common/helpers.h>
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
TFileWriter::TFileWriter(
const TRichYPath& path,
IClientRetryPolicyPtr clientRetryPolicy,
ITransactionPingerPtr transactionPinger,
const TClientContext& context,
const TTransactionId& transactionId,
const TFileWriterOptions& options)
: RetryfulWriter_(
std::move(clientRetryPolicy),
std::move(transactionPinger),
context,
transactionId,
GetWriteFileCommand(context.Config->ApiVersion),
TMaybe<TFormat>(),
path,
options)
{ }
TFileWriter::~TFileWriter()
{
NDetail::FinishOrDie(this, "TFileWriter");
}
void TFileWriter::DoWrite(const void* buf, size_t len)
{
// If user tunes RetryBlockSize / DesiredChunkSize he expects
// us to send data exactly by RetryBlockSize. So behaviour of the writer is predictable.
//
// We want to avoid situation when size of sent data slightly exceeded DesiredChunkSize
// and server produced one chunk of desired size and one small chunk.
while (len > 0) {
const auto retryBlockRemainingSize = RetryfulWriter_.GetRetryBlockRemainingSize();
Y_ABORT_UNLESS(retryBlockRemainingSize > 0);
const auto firstWriteLen = Min(len, retryBlockRemainingSize);
RetryfulWriter_.Write(buf, firstWriteLen);
RetryfulWriter_.NotifyRowEnd();
len -= firstWriteLen;
buf = static_cast<const char*>(buf) + firstWriteLen;
}
}
void TFileWriter::DoFinish()
{
RetryfulWriter_.Finish();
}
size_t TFileWriter::GetBufferMemoryUsage() const
{
return RetryfulWriter_.GetBufferMemoryUsage();
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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