Method WriteStringSlot

be/src/exec/system-table-scanner.cc:72–82

Write a string value to a STRING slot, allocating memory from 'pool'. Returns an error if memory cannot be allocated without exceeding a memory limit.

/// Write a string value to a STRING slot, allocating memory from 'pool'. Returns
/// an error if memory cannot be allocated without exceeding a memory limit.
Status SystemTableScanner::WriteStringSlot(
    const char* data, int len, MemPool* pool, void* slot) {
  char* buffer = reinterpret_cast<char*>(pool->TryAllocateUnaligned(len));
  if (UNLIKELY(buffer == nullptr)) {
    string details = Substitute(ERROR_MEM_LIMIT_EXCEEDED, "WriteStringSlot", len);
    return pool->mem_tracker()->MemLimitExceeded(state_, details, len);
  }
  memcpy(buffer, data, len);
  reinterpret_cast<StringValue*>(slot)->Assign(buffer, len);
  return Status::OK();
}

Status SystemTableScanner::WriteStringSlot(const string& str, MemPool* pool, void* slot) {
  return WriteStringSlot(str.data(), str.size(), pool, slot);