rc_t LogCollectorImpl::reqFileData(file_id_t file_id, file_size_t pos, uint8_t* data, uint32_t len) {
Request* pRequest = getRequest(0);
if (NULL == pRequest) { return RC_S_NULL_VALUE; }
// FileData
FileDataRequest* pFileDataRequest = pRequest->GetFileDataRequest();
if (NULL == pFileDataRequest) { return RC_E_NOMEM; }
// send only
if (IFileNode::INVALID_FILE_ID == file_id || NULL == data || 0 == len) {
if (0 == pFileDataRequest->filedata_size() || RC_S_OK != pRequest->SerializeRequest()) { return RC_S_FAILED; }
return m_autoRelINetHandler->Send(this, pRequest->GetRequestData(), pRequest->GetRequestSize());
}
//
// deflate
ASSERT(IFileCollector::kMAX_READ_SIZE >= len);
size_t encode_size = m_autoRelMemDefalte->len();
if (RC_S_OK != m_autoRelICoderDefalte->encode(m_autoRelMemDefalte->data(), &encode_size, data, len)) {
LOG(ILogWriter::LV_WARN, "Deflate EnCode Failed, Org. Data Len=%u", len);
return RC_S_FAILED;
}
// is too big
if (INetHandler::kMAX_REQ_DATA_SIZE < encode_size) { return RC_E_ACCESS; }
if (INetHandler::kMAX_REQ_DATA_SIZE < pFileDataRequest->ByteSize() + encode_size) {
if (RC_S_OK != pRequest->SerializeRequest()) {
LOG(ILogWriter::LV_WARN, "FileData Packet EnCode Failed. len=%u(less)", pFileDataRequest->ByteSize() + encode_size);
return RC_S_FAILED;
}
if (RC_S_OK != m_autoRelINetHandler->Send(this, pRequest->GetRequestData(), pRequest->GetRequestSize())) { return RC_S_FAILED; }
pFileDataRequest = pRequest->GetFileDataRequest();
}
// make sure have FileDataRequest
if (NULL == pFileDataRequest) { return RC_E_NOMEM; }
FileDataRequest_FileData* pFileData = pFileDataRequest->add_filedata();
if (NULL == pFileData) { return RC_E_NOMEM; }
FileID* pFileID = pFileData->mutable_id();
if (NULL == pFileID) { return RC_E_NOMEM; }
pFileID->set_id(file_id);
pFileData->set_pos(pos);
pFileData->set_encode(FileDataRequest_FileData_EncodeType_DEFLATE);
pFileData->set_org_len(len);
pFileData->set_data(m_autoRelMemDefalte->data(), encode_size);
return RC_S_OK;
}
