Sliding window buffer for minimum local resource requirements

摘要

A sliding window buffer is implemented on a local computing device that places chunks of content from a data source into a local buffer for transmission on a per-chunk basis. A portion of memory in the local buffer can be re-used for a single data transmission operation until the content is fully transmitted to a remote computing device. Logical positions on the local buffer which correlate to inner positions on the data source are utilized to enable the sliding window buffer to retrieve and retransmit chunks of data, if necessary. An inner position indicates a byte location in the data source and a logical position indicates a corresponding byte position in the local buffer. The local computing device can utilize byte positions to retrieve and re-transmit chunks of data if, for example, the device fails to receive an acknowledgement from the remote computing device for any of the data.