摘要:
Methods, systems, apparatus, and computer program products that include, on a first device executing a first instance of a location application, receiving an indication to begin sharing data describing a path traveled by the first device, receiving location data describing the path traveled by the first device, the location data received from a location system of the first device, and the location data including a plurality of locations of the first device, and transmitting the location data in a form usable to enable a user interface of a second instance of a location application executing on a second device to indicate the path traveled by the first device.
摘要:
A method includes, in a storage device that includes a non-volatile memory and a volatile memory, maintaining at least one data structure that stores management information used for managing data storage in the non-volatile memory, such that at least a portion of the data structure is stored in the volatile memory. A sequence of journaling chunks is created during operation of the storage device, each journaling chunk including a respective slice of the data structure and one or more changes that occurred in the data structure since a previous journaling chunk in the sequence. The sequence of the journaling chunks is stored in the non-volatile memory. Upon recovering from an electrical power interruption in the storage device, the data structure is reconstructed using the stored journaling chunks.