US 2008/0307424 A1Published application

Scheduling Method For Polling Device Data

AssigneeHuawei Technologies Co., Ltd.

InventorsJinsong Xu, Yi Song, Hui Zhao, Qing Dong, Yuanxiang Chen

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Abstract

A dispatching method for polling device data. The method comprises: sorting managed devices according to their types, sorting various types of data of each device so as to form different modules, and assigning a priority attribute and a polling period attribute to each module; dividing the managed devices into two sets: one set consisting of devices to be polled and the other set consisting of devices whose connection states need to be detected; and polling each module in the set consisting of devices to be polled according to its priority and polling period periodically. Different polling periods can be set and different polling policies can be applied according to data changeability. Polling policies can be changed in real time and flexibly based on the condition of devices.

A dispatching method for polling device data, comprising:

reading device type description data, wherein managed devices are sorted according to their types, various types of data of each managed device are sorted to different modules, and a priority attribute and a polling period attribute are assigned to each module respectively;
determining a first set of devices to be polled from the managed devices, wherein the first set of devices at least comprises an operation device set;
and
when a system polling is initiated, dispatching a periodical polling by determining at least one module to be polled currently from the operation device set according to the priority attribute and the polling period attribute of the operation device set, wherein a first set of data items for describing the at least one module comprises a device ID, a module ID, a task ID, an occupied flag, an activation time and a priority;
inserting the at least one module to a current polling task queue according to said periodical polling;
setting a polling initiating time at the summation of the current time plus a polling interval;
determining whether there is a free task in the current polling task queue based on the occupied flag;
if so, continuing the process, otherwise returning to the determining whether there is a free task;
selecting a next device module to be polled from the operation device set;
and
determining whether the information obtained by selecting a next device module to be polled is Null;
if not, assigning a task ID to the selected device module and inserting the task ID into the current polling task queue, and simultaneously sending a message for initiating the polling of said device module to the corresponding daemon process, then returning to the determining whether there is a free task;
if so, determining whether all tasks in the current polling task queue are in free state, if all tasks are in free state, ending the process, otherwise returning to the determining whether there is a free task;
wherein said activation time is the current time when inserting a task and is updated when a report about executing situation of the task sent from a daemon has been received;
said occupied flag is set free after a corresponding message showing the task has been completed is received or the polling task is overtime.

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Abstract

Claims15