CN106874087A - A kind of block chain intelligence contract timed task dispatching method - Google Patents

A kind of block chain intelligence contract timed task dispatching method Download PDF

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Publication number
CN106874087A
CN106874087A CN201710056722.2A CN201710056722A CN106874087A CN 106874087 A CN106874087 A CN 106874087A CN 201710056722 A CN201710056722 A CN 201710056722A CN 106874087 A CN106874087 A CN 106874087A
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China
Prior art keywords
timed task
task
timed
block chain
treatment
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CN201710056722.2A
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Chinese (zh)
Inventor
李升林
姜海涛
谭红波
黄高峰
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Shanghai Great Real Financial Information Service Co Ltd
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Shanghai Great Real Financial Information Service Co Ltd
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Priority to CN201710056722.2A priority Critical patent/CN106874087A/en
Publication of CN106874087A publication Critical patent/CN106874087A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G06F9/4881—Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
    • G06F9/4887—Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues involving deadlines, e.g. rate based, periodic

Abstract

The present invention relates to block chain technical field, a kind of specifically block chain intelligence contract timed task dispatching method, including：(1) add timed task, configuring timing tasks perform requirements, and timed task is committed to block chain and process node；(2) classification treatment is carried out to timed task, and is added to task treatment queue；(3) the common recognition node of block chain is selected, common recognition node obtains common recognition authority；(4) when timed task reaches execution to be required, common recognition node carries out task treatment to timed task；(5) by the state synchronized of timed task to other nodes after the completion of task treatment, according to the state of timed task after other nodes acquisition common recognition authority, the timed task to being not carried out carries out the task treatment of next step.This dispatching method flexibility ratio, accuracy are higher, can realize accurately time control, can realize accurately and efficiently task treatment.

Description

A kind of block chain intelligence contract timed task dispatching method
Technical field
The present invention relates to block chain technical field, a kind of specifically block chain intelligence contract timed task dispatching party Method.
Background technology
Block chain is a kind of a kind of data block is combined into the way of order is connected chain type number sequentially in time According to structure, it can not be distorted and can not be forged with what cryptography mode ensured, realizes the distributed account book of decentralization.In area Block chain technical field, due to its distribution, the encryption of shared data block, cryptography and the features such as other security policies, intelligence Contract aspect only provides limited program customization function, and under some business scenarios, such as data are periodically processed, are worth periodically friendship Change, entrust and pay out etc. in Business Processing, block chain technology application meets very big difficulty.
Difficult in order to solve these, the solution of current main-stream is one application program of centralization of design, by wheel Follow the data called on intelligent contract scan chain, and qualified data processed, the program not only time delayses compared with Greatly, it is impossible to realize accurately time control, and also add the complexity that system is realized, increase development cost.
The content of the invention
The present invention be directed to the difficult point of task scheduling in above-mentioned block chain, it is proposed that one kind can be solved periodically and specified Time point performs the block chain intelligence contract timed task dispatching method of intelligent contract.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of block chain intelligence contract timed task dispatching method, described dispatching method is comprised the following steps：
A1. external request adds timed task in the chain of region, and configuring timing tasks perform requirement, and by timed task It is committed to block chain treatment node；
A2. classification treatment is carried out to timed task, and is added to task treatment queue；
A3. the common recognition mechanism according to block chain selects the common recognition node of block chain, and common recognition node obtains common recognition authority；
A4. when timed task reaches execution to be required, common recognition node carries out task treatment to timed task；
A5. by the state synchronized of timed task to other nodes after the completion of task treatment, other nodes obtain common recognition authority The state according to timed task carries out the task treatment of next step to the timed task being not carried out afterwards.
Further, in the scheduling process of described timed task, timed task and task treatment queue are bundled to area In block so that the state energy real-time synchronization of timed task, task treatment queue and timed task to each node in the chain of region.
Further, what described task was processed concretely comprises the following steps：
B1. expired timed task is deleted：To specifying the timed task that had performed of time or specified time-out Timed task is purged；
B2. available timed task is extracted：Requirement is performed when timed task reaches, and the timed task does not have in other nodes It was performed, i.e., extracted timed task from task treatment queue；
B3. timed task is performed：After obtaining available timed task, the legitimacy of address and interface to intelligent contract is entered Row verification, filling performs parameter, performs the function of the intelligent contract that timed task is specified；
B4. timed task is updated：State according to different timing tasks carrying after complete updates timed task.
Further, after described timed task addition, it is ranked up according to the timestamp size of timed task, and according to The time of timed task, call type, cycle rank are classified, and generate the task treatment queue of different priorities.
Further, described timed task be submitted to task treatment queue after, task treatment queuing message store to work as Node where preceding block, timed task and task treatment queuing message are bundled in synchronous block, coordinate block chain block in itself Synchronization mechanism is broadcast to each node in the chain of region.
Further, when node elects common recognition node as, the event sniffer of node of knowing together is responsible for processing queue to task In timed task carry out task treatment, timed task is carried out event monitoring and time-out monitoring.
Further, when timed task is updated：For periodic timed task, the execution shape of timed task need to be set State and execution time；For the timed task for having number of times requirement, the number of times of timed task need to be reduced, and it is in office to update timed task Mission bit stream in business treatment queue；For disposable timed task, timed task is directly deleted.
Further, described common recognition node is selected according to the common recognition mechanism of block chain, described common recognition mechanism for Pow or Pos or DPos or Pool or Raft.
In a kind of above-mentioned block chain intelligence contract timed task dispatching method, described timed task is configured to every point Clock every hour or daily or weekly or monthly or annual specified cycle or specified time point or specified time interval or is specified Number of times performs requirement.
The present invention is allowed to compared with prior art, have the following advantages that and actively imitate due to using above technical scheme Really：
1. timed task can be configured to cycle execution or more accurately sometime process, and can also configure task certain hour Interval performs, or specifies execution number of times, and the flexibility ratio of timed task scheduling, accuracy are higher, can realize accurately time control；
2. after timed task addition, classification can be ranked up according to the time of timed task, call type, cycle rank, So as to the generating different priorities of the task processes queue, the efficiency of follow-up work treatment is improve, realize and accurately and efficiently appoint Business is processed；
3. timed task and task treatment queue, on timed task state energy real-time synchronization to other nodes, it is ensured that each Have the opportunity to trigger timed task on node so that all nodes can coequally possess the task disposal ability of timed task；
4. timed task can be performed in any one node, the publisher node of timed task is not limited to, in block Chain each node is processed timed task by vying each other after acquisition common recognition authority, does not have priority level between each node Distinguish so that the characteristics of there is arbitrariness during node processing timed task；
5. the subtask treatment of timed task can only be in some node of block chain, it is impossible to single treatment task pair Treatment is multiple in the time point answered or a time cycle, and timed task processing procedure has exclusiveness；
6. the task treatment such as can be added, delete, extracting, performing to timed task, timed task has execution state, After the completion of each timed task, the state of timed task is updated for different types of timed task, enabling by fixed When task state determine whether timed task treat.
Brief description of the drawings
Fig. 1 is scheduling flow schematic diagram of the invention；
Fig. 2 is timed task addition, classification, synchronous process schematic in the present invention；
Fig. 3 is the schematic flow sheet of task treatment in the present invention.
Specific embodiment
Technical scheme proposed by the present invention is further described below in conjunction with the drawings and specific embodiments.According to following Illustrate and claims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing is using very simplified shape Formula and use non-accurately ratio, be only used for conveniently, lucidly aid in illustrating the embodiment of the present invention purpose.
The present invention be directed to the scheduled service scheduling problem of region chain, paying out such as under diversified application scenarios, assets Commission, the periodically business such as accounting, in the block chain technology of current main-stream, lack a kind of regular, clocked flip intelligence contract Method for scheduling task, therefore, the present invention devises block chain intelligence contract timed task dispatching method, solves block chain intelligence Contract is regular, the problem of clocked flip.Management interface is externally provided in the form of intelligent contract in the present invention, while providing Kind time scheduling strategy, timed task can be configured to cycle execution or more accurately sometime process, and can also configure task Intervals are performed, or specify execution number of times, and the flexibility ratio of timed task scheduling, accuracy are higher, can realize accurately Time control, now coordinates Figure of description further to state workflow of the invention.
Embodiment 1
Referring to Fig. 1, this dispatching method can mainly be realized：External request adds timing by using intelligent contract administration interface Task, timed task can be configured to it is per minute every hour or daily or weekly or monthly or the annual specified cycle or it is specified when Between point or specified time interval or predetermined number of times perform requirement；Task carries out classification treatment, and is placed into timed task treatment Queue；During scheduling, be packaged in timed task in new block by node, by the synchronization mechanism between block node It is broadcast to block chain other nodes so that all nodes can coequally possess the task disposal ability of timed task；Event is supervised Listen device to perform event monitoring, time-out monitoring, and qualified task is processed, then update task status, specific bag Include following steps：
1. external request adds timed task in the chain of region, and configuring timing tasks perform requirement, and by timed task It is committed to block chain treatment node；
2. pair timed task carries out classification treatment, and generates task treatment queue；
3. the common recognition mechanism according to block chain selects the common recognition node of block chain, and common recognition node obtains common recognition authority；
4. when timed task reaches execution to be required, that is, when meeting triggering submission condition, common recognition node enters to timed task The treatment of row task；
5. by the state synchronized of timed task to other nodes after the completion of task treatment, after other nodes obtain common recognition authority According to the state of timed task, the timed task to being not carried out carries out the task treatment of next step.
Now specifically stated for different process steps, the dispatching method in the present invention is roughly divided into task and submitted to Journey and task scheduling processing process：
Task submits process to referring to Fig. 2, and it mainly includes addition timed task, timed task is classified and to timing Task is synchronized.
Addition timed task：External call request adds timed task by management interface in the chain of region, in region chain In, management interface is more to be provided with intelligent forms of contract, so that external energy is called and managed using these by intelligent contract Interface, is typically provided by similar solidity built-in functions, timed task is committed into block chain treatment node afterwards, and configure Timed task performs requirement, such as per minute inferior to task treatment two.
Timed task is classified：After timed task is added, it is ranked up by the timestamp size of timed task, And classification of task is carried out according to the call type of timed task, cycle rank, so as to generate the task treatment of different priorities Queue, it is ensured that the process for transferring timed task can be performed efficiently.
Timed task synchronization：The system that block chain is constituted as a P2P network, now other nodes of block chain do not wrap Queue is processed containing task, is not possessed intelligent task and is performed primary condition, in order that obtain all of node can coequally possess The executive capability of timed task, task treatment queuing message needs to synchronize, and single treatment node need to be by timed task, task Process queue and timed task state synchronized to each node, it is ensured that have the opportunity to trigger timed task on each node so that All nodes can coequally possess the task disposal ability of timed task.After timed task is submitted to task treatment queue, appoint Business treatment queuing message is stored to node where current block, and timed task, mission bit stream and Transaction Information etc. are bundled to In synchronous block, and block chain block synchronization mechanism in itself is coordinated to be broadcast to other nodes, it is ensured that task processes queue and timing Tasks synchronization performs arbitrariness purpose, the synchronism of node to reach to each node.
After task submits completion to, timed task need to be scheduled and be processed, its handling process refers to Fig. 3, tool Body is：
Select common recognition node：During the timed task of each node of real-time update, have during node processing timed task Arbitrariness, i.e. timed task can be performed in any one node, be not limited to the publisher node of timed task, but block chain In each node need to vie each other acquisition common recognition authority after timed task can just be processed.Selecting for node of common recognition is root According to the common recognition mechanism of block chain.Due to there is network delay higher, the affairs observed by each node under point to point network Sequencing can not possibly be completely the same.Therefore block chain using common recognition mechanism to the sequencing of the affairs in a time window Reach common understanding.Pow or Pos or DPos or Pool or Raft being used common recognition mechanism, certainly, common recognition the selected of mechanism is basis more Concrete application pattern and range of application are selected, and are not specifically limited in the present embodiment.
After node elects common recognition node as, the event sniffer of node of knowing together is responsible for appointing the timing in task treatment queue Business carries out task treatment, and event monitoring and time-out monitoring are carried out to timed task, is such as responsible for removing expired task (such as in queue Fruit has), extraction can use timed task, perform timed task, update timed task or delete timed task.Due to being total to for alliance's chain Node is known in the absence of parallel book keeping operation, so timed task will not be performed repeatedly simultaneously.
What task was processed concretely comprises the following steps：
1) expired timed task is deleted：After node gets common recognition authority, the timing to specifying the time to perform The timed task of task or specified time-out enters row major removing, retains effective timed task, at guarantee task of trying one's best The high efficiency of reason；
2) available timed task is extracted：Requirement is performed when timed task reaches, that is, reaches the execution of configuring timing tasks Time performs number of times, and the timed task was not performed in other nodes, i.e., extract timing from task treatment queue Task；
3) timed task is performed：After obtaining available timed task, the legitimacy of address and interface to intelligent contract is entered Row verification, filling performs parameter, the function of the intelligent contract that execution task is specified；
4) timed task is updated：State according to different timing tasks carrying after complete updates timed task, such as：For the cycle The timed task of property, need to set execution state and the execution time of timed task；For the timed task for having number of times requirement, need to subtract The number of times of few timed task, and update mission bit stream of the timed task in task treatment queue；Appoint for disposable timing Business, directly deletes timed task.
Obviously, those skilled in the art can carry out various changes and modification without deviating from spirit of the invention to invention And scope.So, if these modifications of the invention and modification belong to the claims in the present invention and its equivalent technologies scope it Interior, then the present invention is also intended to comprising these changes and modification.

Claims (9)

1. a kind of block chain intelligence contract timed task dispatching method, it is characterised in that described dispatching method includes following step Suddenly：
A1. external request adds timed task in the chain of region, and configuring timing tasks perform requirement, and timed task is submitted to Node is processed to block chain；
A2. classification treatment is carried out to timed task, and is added to task treatment queue；
A3. the common recognition mechanism according to block chain selects the common recognition node of block chain, and common recognition node obtains common recognition authority；
A4. when timed task reaches execution to be required, common recognition node carries out task treatment to timed task；
A5. by the state synchronized of timed task to other nodes after the completion of task treatment, other nodes obtain root after common recognition authority According to the state of timed task, the timed task to being not carried out carries out the task treatment of next step.
2. a kind of block chain intelligence contract timed task dispatching method according to claim 1, it is characterised in that described Timed task scheduling process in, timed task and task treatment queue be bundled in block so that at timed task, task The state energy real-time synchronization of reason queue and timed task is to each node in block chain.
3. a kind of block chain intelligence contract timed task dispatching method according to claim 1, it is characterised in that described What task was processed concretely comprises the following steps：
B1. expired timed task is deleted：The timing of timed task or specified time-out to specifying the time to perform Task is purged；
B2. available timed task is extracted：Perform requirement when timed task reaches, and the timed task other nodes not by Performed, i.e., extracted timed task from task treatment queue；
B3. timed task is performed：After obtaining available timed task, the legitimacy of address and interface to intelligent contract carries out school Test, filling performs parameter, perform the function of the intelligent contract that timed task is specified；
B4. timed task is updated：State according to different timing tasks carrying after complete updates timed task.
4. a kind of block chain intelligence contract timed task dispatching method according to claim 1, it is characterised in that described Timed task addition after, be ranked up according to the timestamp size of timed task, and according to the time of timed task, call class Type, cycle rank are classified, and generate the task treatment queue of different priorities.
5. a kind of block chain intelligence contract timed task dispatching method according to claim 1, it is characterised in that described After timed task is submitted to task treatment queue, task treatment queuing message is stored to node where current block, timed task And task treatment queuing message is bundled in synchronous block, block chain block synchronization mechanism in itself is coordinated to be broadcast in the chain of region Each node.
6. a kind of block chain intelligence contract timed task dispatching method according to claim 1, it is characterised in that work as node When electing common recognition node as, the event sniffer of node of knowing together is responsible for carrying out at task the timed task in task treatment queue Reason, event monitoring and time-out monitoring are carried out to timed task.
7. a kind of block chain intelligence contract timed task dispatching method according to claim 3, it is characterised in that updating During timed task：For periodic timed task, execution state and the execution time of timed task need to be set；For there is number of times It is required that timed task, the number of times of timed task need to be reduced, and update timed task task treatment queue in mission bit stream； For disposable timed task, timed task is directly deleted.
8. a kind of block chain intelligence contract timed task dispatching method according to claim 1, it is characterised in that described Common recognition node is selected according to the common recognition mechanism of block chain, and described common recognition mechanism is Pow or Pos or DPos or Pool or Raft.
9. a kind of intelligent contract timed task dispatching party of block chain according to any one of claim 1-8 claim Method, it is characterised in that described timed task is configured to per minute or every hour or daily or weekly or monthly or annual finger Fixed cycle or specified time point or specified time interval or predetermined number of times perform requirement.
CN201710056722.2A 2017-01-25 2017-01-25 A kind of block chain intelligence contract timed task dispatching method Pending CN106874087A (en)

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