void reserveSequenceID(int size) {
      sequenceID += size;
    }
Reads the long value of id from the buffer and returns it.

@param buffer - the buffer from which 'id'(threadId or sequenceId) is to be read
@return - the value of the id as long
geode-core/src/main/java/org/apache/geode/internal/cache/EventID.java