Function ParseCiphertextTotalLength

cpp/src/parquet/bloom_filter.cc:44–52

Parse the 4-byte little-endian length prefix and return the total ciphertext size, including the 4-byte length field itself.

/// Parse the 4-byte little-endian length prefix and return the total ciphertext size,
/// including the 4-byte length field itself.
int64_t ParseCiphertextTotalLength(const uint8_t* data, int64_t length) {
  if (length < kCiphertextLengthSize) {
    throw ParquetException("Ciphertext length buffer is too small");
  }
  uint32_t buffer_size =
      (static_cast<uint32_t>(data[3]) << 24) | (static_cast<uint32_t>(data[2]) << 16) |
      (static_cast<uint32_t>(data[1]) << 8) | (static_cast<uint32_t>(data[0]));
  return static_cast<int64_t>(buffer_size) + kCiphertextLengthSize;
}

void CheckBloomFilterShortRead(int64_t expected, int64_t actual,
                               std::string_view context) {