Function ReadFully

Bcore/src/main/cpp/android-base/file.cpp:144–154

}

bool ReadFully(int fd, void* data, size_t byte_count) {
  uint8_t* p = reinterpret_cast<uint8_t*>(data);
  size_t remaining = byte_count;
  while (remaining > 0) {
    ssize_t n = TEMP_FAILURE_RETRY(read(fd, p, remaining));
    if (n <= 0) return false;
    p += n;
    remaining -= n;
  }
  return true;
}

#if defined(_WIN32)
// Windows implementation of pread. Note that this DOES move the file descriptors read position,