Method countBySkipping

corpus/java/training/guava/io/ByteSource.java:223–230

Counts the bytes in the given input stream using skip if possible. Returns SKIP_FAILED if the first call to skip threw, in which case skip may just not be supported.

(InputStream in)

   * first call to skip threw, in which case skip may just not be supported.
   */
  private long countBySkipping(InputStream in) throws IOException {
    long count = 0;
    long skipped;
    while ((skipped = skipUpTo(in, Integer.MAX_VALUE)) > 0) {
      count += skipped;
    }
    return count;
  }

  /**
   * Copies the contents of this byte source to the given {@code OutputStream}. Does not close