CN101697136B - Method and device for controlling resource - Google Patents
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Abstract
The invention is applied in the field of computer application, and provides a method and a device for controlling resource. The method comprises the following steps: receiving a resource using request transmitted by service application, and acquiring a lock state of the resource; when the lock state of the resource is an unlocked state, establishing a resource control entity object corresponding to the resource according to a preset resource control entity model, storing the established resource control entity object to a buffer memory, and locking the established resource control entity object, or directly locking the resource control entity object which corresponds to the resource and is stored in the buffer memory; and after the service application finishes using the resource, unlocking the resource control entity object corresponding to the resource in the buffer memory. In the method and the device, the accuracy and the efficiency of exclusive control of the resource are improved by describing resource control by the resource control entity object, storing the lock state of the resource by the buffer memory and performing locking and unlocking control on the lock state of the resource according to a service condition of the resource.
Description
Technical field
The invention belongs to computer application field, relate in particular to a kind of resource control method and device.
Background technology
At computer application field, in the process of service application use or competitive resource, in order to control concurrency, generally need to carry out exclusivity control to resource, only allow at one time a service application to use resource with assurance, thereby guarantee that service application is to the exclusivity of resource.Wherein resource can be single resource, such as individual data storehouse physics table, single method, single attribute etc., perhaps is composite factor.
Prior art provides a kind of monopolistic method of controlling resource by the database shared lock.Its principle is summarized as follows: database is when obtaining the user and ask, add suitable lock for database satisfying between locking condition and the system performance, such as row level lock, page or leaf level lock, a table level lock, panel lock, database level lock etc., control the exclusive state of resource by database self lock mechanism.This resource control method can be realized the resource Absolute control to data line, data page, tables of data, panel or the whole database of based on database, but be difficult to service based object model composite factor is realized Absolute control, when service application relates to composite factor, can't satisfy resource exclusivity demand for control.
Prior art provides another to come method that the resource exclusivity is controlled by the database definition RCT, and its principle is summarized as follows: adopt database table to describe resource control information, record the exclusive state of resource by database table.This resource control method is owing to describe resource control by database table, and record resource exclusive state, thereby increased the network overhead of database, and when unexpected abnormality (such as power failure, deadlock etc.), after needing manually in database, to remove the exclusive state of resource, other service application could be used this resource, have reduced the accuracy and efficiency of resource control, bring great inconvenience to the user.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of resource control method, is intended to solve existing resource control method accuracy rate and inefficient problem.
The embodiment of the invention is achieved in that a kind of resource control method, and described method comprises the steps:
Receive the resource use request that service application sends, the lock-out state of Gains resources;
The lock-out state of judging resource is locking or non-locking;
When the lock-out state of resource is non-locking, if do not store the resource control entity object corresponding with resource in the buffer memory, then according to the default resource control entity model creation resource control entity object corresponding with resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that the creates processing that locks; If store the resource control entity object corresponding with resource in the buffer memory, and the lock-out state of the resource control entity object corresponding with resource is non-locking, then directly to the resource control entity object corresponding with resource of storing in the buffer memory processing that locks;
After service application uses resource, resource control entity object corresponding with this resource in the buffer memory is carried out release process;
Wherein, the step of the lock-out state of described Gains resources specifically comprises:
Judge and whether store the resource control entity object corresponding with the resource of resource use request appointment in the buffer memory, if not, the lock-out state of the resource of then obtaining is non-locking, if, then from buffer memory, read the lock-out state of the resource control entity object corresponding with resource, and the lock-out state of resource control entity object that will be corresponding with described resource is as the lock-out state of resource.
Another purpose of the embodiment of the invention is to provide a kind of resource control, and described device comprises:
The lock-out state acquiring unit is used for when the resource that receives the service application transmission is used request the lock-out state of Gains resources;
The lock-out state judging unit is used for judging whether the lock-out state of the resource that described lock-out state acquiring unit obtains is locking;
Resource control unit, be used for when described lock-out state judging unit Output rusults when being no, if do not store the resource control entity object corresponding with resource in the buffer memory, then according to the default resource control entity model creation resource control entity object corresponding with resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that the creates processing that locks; If the lock-out state of the resource control entity object corresponding with resource of storing in the buffer memory is non-locking, then directly to the resource control entity object corresponding with resource of storing in the buffer memory processing that locks;
The release processing unit is used for after service application uses resource, resource control entity object corresponding with this resource in the buffer memory is carried out release process;
Wherein, described lock-out state acquiring unit comprises:
The first lock-out state determination module is used for when buffer memory is not stored the resource control entity object corresponding with resource, and the lock-out state of determining resource is non-locking.
The second lock-out state determination module, be used for when buffer memory stores the resource control entity object corresponding with resource, from buffer memory, read the lock-out state of the resource control entity object corresponding with resource, and the lock-out state of the resource control entity object that reads is defined as the lock-out state of resource.
In embodiments of the present invention, by adopting the resource control entity object resource control is described, come the lock-out state of storage resources by buffer memory, and according to service application to the operating position of resource to the lock-out state of the resource of storing in the buffer memory reconciliation lock control that locks, with realization the exclusivity of resource is controlled, improved the accuracy and efficiency of resource Absolute control.
Description of drawings
Fig. 1 is the realization flow figure of the resource control method that provides of the embodiment of the invention;
Fig. 2 is the synoptic diagram of the resource control entity model that provides of the embodiment of the invention;
Fig. 3 is the synoptic diagram of the resource logic control class that provides of the embodiment of the invention;
Fig. 4 is the structured flowchart of the resource control that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
In embodiments of the present invention, by adopting the resource control entity object resource control is described, come the lock-out state of storage resources by buffer memory, and according to service application the operating position of resource is controlled the lock-out state of the resource of storing in the buffer memory, to realize the Absolute control to resource, improved the accuracy and efficiency of resource Absolute control.
Fig. 1 shows the realization flow of the resource control method that the embodiment of the invention provides, and details are as follows:
In step S101, receive the resource use request that service application sends, obtain the lock-out state of this resource.
In embodiments of the present invention, when service application need to be used resource, can be by sending resource with asking this resource to use the right to use of the resource of request appointment.Wherein resource can be single resource, such as individual data storehouse physics table, single method, single attribute etc., also can be composite factor.The user can the self-defining resource be single resource or composite factor.
Wherein the step of the lock-out state of Gains resources is specific as follows:
Judge and whether store the resource control entity object corresponding with the resource of resource use request appointment in the buffer memory, if not, the lock-out state of the resource of then obtaining is non-locking, if, from buffer memory, read the lock-out state of the resource control entity object corresponding with resource, and the lock-out state of resource control entity object that will be corresponding with this resource is as the lock-out state of resource.
Wherein the lock-out state of resource comprises locking and two kinds of non-lockings.Identify lock-out state with true respectively, identify unlocked state with fa1se, when the lock-out state of resource is locking, illustrated that service application using this resource, other service application can't be used this resource, otherwise illustrating does not have service application using this resource, and other service application can normally be used this resource.
Wherein the resource control entity object is used for describing resource control.When storing the resource control entity object corresponding with resource in the buffer memory, represent that this resource is used before this or is used, be in the resource state of a control, otherwise represented that this resource was not used before this, this resource also is in not state of a control.When resource was in not state of a control, the use request that current business is used this resource was allowed to.
In step S102, judge the lock-out state of resource for locking or non-locking, if be judged to be non-locking, execution in step S103, if be judged to be locking, execution in step S105.
In step S103, according to the default resource control entity model creation resource control entity object corresponding with this resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that creates processings that lock, perhaps direct to the resource control entity object corresponding with this resource of storing in the buffer memory processing that locks.Its concrete steps are as follows:
In buffer memory, store the resource control entity object corresponding with this resource, and when the lock-out state of the resource control entity object corresponding with this resource is non-locking, directly to the resource control entity object corresponding with this resource of storing in the buffer memory processing that locks;
When not storing the resource control entity object corresponding with this resource in the buffer memory, according to the default resource control entity model creation resource control entity object corresponding with this resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that the creates processing that locks.
Wherein default resource control entity model comprises the lock-out state of resource control object sign, resource control object.Wherein resource control object sign is used for unique identification resource control object.The lock-out state of resource control object is used for the lock-out state of record resource control object.In embodiments of the present invention, the lock-out state of resource control object comprises locking and non-locking two states, identify lock-out state with true respectively, identify unlocked state with false, when the lock-out state of resource control object during for locking, illustrated that service application using this resource, other service application can't be used this resource, otherwise illustrating does not have service application using this resource, and other service application can normally be used this resource.
In another embodiment of the present invention, this resource control entity object also comprises locking time.Be the time of lock resource control object this locking time.Certainly, can also according to the demand of reality, further expand the resource control entity model.See also Fig. 2, the synoptic diagram of the resource control entity model that provides for the embodiment of the invention, but be not limited with this synoptic diagram.
According to the default resource control entity model creation resource control entity object corresponding with this resource the time, the resource control object of the resource control entity object of establishment is designated the unique identification of this resource.Specific as follows to the lock step processed of resource control entity object:
The lock-out state of resource control entity object is set to locking (true).If this resource control entity object also comprises locking time simultaneously, the set of time in the time of then will locking processing to the resource control entity object is the locking time of this resource control entity object.
In step S104, after service application uses resource, resource control entity object corresponding with this resource in the buffer memory is carried out release process, so far, resource control finishes.Its concrete steps are as follows:
The lock-out state of the resource control entity object corresponding with this resource is set to non-locking (false) in the buffer memory.If this resource control entity object also comprises locking time simultaneously, then remove the locking time of resource control entity object.
In embodiments of the present invention, when specific implementation, can realize management to resource control by the resource logic control class is set.See also Fig. 3, the synoptic diagram of the resource logic control class that provides for the embodiment of the invention, but be not limited with this synoptic diagram.This resource logic control class comprises resource control entity object set (NetAccessList), locking method (Lock), unlock method (UnLock) and lock-out state acquisition methods (GetStatus).Wherein the resource control entity object set is used for the resource control entity object corresponding with resource that record creates.Locking method is used for processings that lock of resource control entity object to appointment, the lock-out state of resource control entity object of appointment namely is set for locking (true), and be the current time locking time that the resource control entity object of appointment is set.Locking method is used for the resource control entity object of appointment is carried out the release processing, and the lock-out state that the resource control entity object of appointment namely is set is non-locking (true), and removes the locking time of resource control entity object.
In step S105, use request to increase in the resource waiting list this resource, and execution in step S101 again.
In order to make resource control convenient, quick, improve simultaneously accuracy and the validity of resource control, in another embodiment of the present invention, the method also comprises the steps:
When system's abnormal, reclaim the resource control entity object of storing in the buffer memory, remove the control to resource.Wherein system's abnormal refers to that system is owing to the reasons such as deadlock, outage cause service application to the use abnormal end of resource.
Fig. 4 shows the structure of the resource control that the embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.Wherein:
When lock-out state acquiring unit 1 uses request in the resource that receives the service application transmission, obtain the lock-out state of this resource.Wherein resource can be single resource, such as individual data storehouse physics table, single method, single attribute etc., also can be composite factor.The user can the self-defining resource be single resource or composite factor.
This lock-out state acquiring unit 1 comprises the first lock-out state determination module 11 and the second lock-out state determination module 12.Wherein:
When the first lock-out state determination module 11 was not stored the resource control entity object corresponding with resource in buffer memory, the lock-out state of determining resource was non-locking.
When the second lock-out state determination module 12 stores the resource control entity object corresponding with resource in buffer memory, from buffer memory, read the lock-out state of the resource control entity object corresponding with resource, and the lock-out state of the resource control entity object that reads is defined as the lock-out state of resource.Wherein the lock-out state of resource comprises locking and two kinds of non-lockings.
Wherein the resource control entity object is used for describing resource control.When storing the resource control entity object corresponding with resource in the buffer memory, represent that this resource is used before this or is used, be in the resource state of a control, otherwise represented that this resource was not used before this, this resource also is in not state of a control.When resource was in not state of a control, the use request that current business is used this resource was allowed to.
Lock-out state judging unit 2 judges that the lock-out state of the resource that lock-out state acquiring unit 1 obtains is locking or non-locking.
The lock-out state that resource control unit 3 is judged resource at lock-out state judging unit 2 is during as non-locking, according to the default resource control entity model creation resource control entity object corresponding with this resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that creates processings that lock, perhaps direct to the resource control entity object corresponding with this resource of storing in the buffer memory processing that locks.
This resource control unit 3 comprises entity object creation module 31 and the processing module 32 that locks.Wherein:
When entity object creation module 31 is not stored the resource control entity object corresponding with resource in buffer memory, according to the default resource control entity model creation resource control entity object corresponding with this resource, and the resource control entity object of establishment is stored in the buffer memory.
When the lock-out state of the processing module that the locks 32 resource control entity object corresponding with resource that store in buffer memory is non-locking, directly to the resource control entity object corresponding with this resource of storing in the buffer memory processings that lock, perhaps to the processing that locks of the resource control entity object of entity object creation module 31 establishments.Wherein specific as follows to the lock step processed of resource control entity object:
The lock-out state of resource control entity object is set to locking (true).If this resource control entity object also comprises locking time simultaneously, the set of time in the time of then will locking processing to the resource control entity object is the locking time of this resource control entity object.
The lock-out state of the resource control entity object corresponding with this resource is set to non-locking (false) in the buffer memory.If this resource control entity object also comprises locking time simultaneously, then remove the locking time of resource control entity object.
The lock-out state that resource waiting list control module 5 is judged resource at lock-out state judging unit 2 uses request to increase in the resource waiting list resource that receives during as locking.
In order to make resource control convenient, quick, improve simultaneously accuracy and the validity of resource control, in another embodiment of the present invention, this device also comprises control resource releasing unit 6.This control resource releasing unit 6 reclaims the resource control entity object of storing in the buffer memory, to remove the control to resource when system's abnormal.
In embodiments of the present invention, by adopting the resource control entity object resource control is described, come the lock-out state of storage resources by buffer memory, and according to service application to the operating position of resource to the lock-out state of the resource of storing in the buffer memory reconciliation lock control that locks, with realization the exclusivity of resource is controlled, improved the accuracy and efficiency of resource Absolute control.When system's abnormal, by reclaiming the resource control entity object of storing in the buffer memory, remove the control to resource, thereby further improve accuracy and the validity of resource control.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a resource control method is characterized in that, described method comprises the steps:
Receive the resource use request that service application sends, the lock-out state of Gains resources;
When not storing the resource control entity object corresponding with resource in the buffer memory, according to the default resource control entity model creation resource control entity object corresponding with resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that the creates processing that locks, perhaps in buffer memory, store the resource control entity object corresponding with resource, and when the lock-out state of the resource control entity object corresponding with resource is non-locking, directly to the resource control entity object corresponding with resource of storing in the buffer memory processing that locks;
After service application uses resource, resource control entity object corresponding with this resource in the buffer memory is carried out release process;
Wherein, the step of the lock-out state of described Gains resources specifically comprises:
Judge and whether store the resource control entity object corresponding with the resource of resource use request appointment in the buffer memory, if not, the lock-out state of the resource of then obtaining is non-locking, if, then from buffer memory, read the lock-out state of the resource control entity object corresponding with resource, and the lock-out state of resource control entity object that will be corresponding with described resource is as the lock-out state of resource.
2. the method for claim 1 is characterized in that, after the step of the lock-out state of described Gains resources, described method also comprises the steps:
The lock-out state of judging resource is locking or non-locking;
When the lock-out state of resource is locking, use request to increase in the resource waiting list described resource.
3. the method for claim 1 is characterized in that, described method also comprises the steps:
When system's abnormal, reclaim the resource control entity object of storing in the buffer memory, remove the control to resource.
4. such as each described method of claims 1 to 3, it is characterized in that described resource control entity model comprises the lock-out state of resource control object sign, resource control object.
5. a resource control is characterized in that, described device comprises:
The lock-out state acquiring unit is used for when the resource that receives the service application transmission is used request the lock-out state of Gains resources;
The lock-out state judging unit is used for judging whether the lock-out state of the resource that described lock-out state acquiring unit obtains is locking;
Resource control unit, be used for when buffer memory is not stored the resource control entity object corresponding with resource, according to the default resource control entity model creation resource control entity object corresponding with resource, the resource control entity object that creates is stored in the buffer memory, and to the resource control entity object that the creates processing that locks, when the lock-out state of the resource control entity object corresponding with resource of perhaps storing in buffer memory is non-locking, directly to the resource control entity object corresponding with resource of storing in the buffer memory processing that locks;
The release processing unit is used for after service application uses resource, resource control entity object corresponding with this resource in the buffer memory is carried out release process;
Wherein, described lock-out state acquiring unit comprises:
The first lock-out state determination module is used for when buffer memory is not stored the resource control entity object corresponding with resource, and the lock-out state of determining resource is non-locking;
The second lock-out state determination module, be used for when buffer memory stores the resource control entity object corresponding with resource, from buffer memory, read the lock-out state of the resource control entity object corresponding with resource, and the lock-out state of the resource control entity object that reads is defined as the lock-out state of resource.
6. device as claimed in claim 5 is characterized in that, described device also comprises:
Resource waiting list control module, the lock-out state that is used for judging resource at described lock-out state judging unit be during as locking, the resource that receives used asked to increase in the resource waiting list.
7. device as claimed in claim 5 is characterized in that, described device also comprises:
Control resource releasing unit is used for reclaiming the resource control entity object of storing in the buffer memory when system's abnormal, to remove the control to resource.
8. such as the described device of the arbitrary claim of claim 5 to 7, it is characterized in that described resource control unit specifically comprises:
The entity object creation module, be used for when buffer memory is not stored the resource control entity object corresponding with resource, according to the default resource control entity model creation resource control entity object corresponding with resource, and the resource control entity object of establishment is stored in the buffer memory;
Processing module locks, when the lock-out state that is used for the resource control entity object corresponding with resource store at buffer memory is non-locking, directly to the resource control entity object corresponding with this resource of storing in the buffer memory processings that lock, perhaps to the processing that locks of the resource control entity object of described entity object creation module establishment.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102262559B (en) * | 2010-05-24 | 2013-08-14 | 腾讯科技（深圳）有限公司 | Resource sharing method and system |
| CN102063338B (en) * | 2010-12-28 | 2013-03-20 | 华为技术有限公司 | Method and device for requesting exclusive resource |
| CN102081557A (en) * | 2011-01-27 | 2011-06-01 | 浪潮(北京)电子信息产业有限公司 | Resource management method and system in cloud computing operating system |
| CN104484208A (en) * | 2014-12-24 | 2015-04-01 | 深圳市理奥网络技术有限公司 | Application running acceleration method and user equipment |
| CN105069081B (en) * | 2015-07-31 | 2019-05-07 | 北京金山安全软件有限公司 | Shared resource access method and device |
| CN105700939B (en) * | 2016-04-21 | 2019-07-02 | 北京京东尚科信息技术有限公司 | The method and system of Multi-thread synchronization in a kind of distributed system |
| CN109903022B (en) * | 2018-10-25 | 2023-08-22 | 创新先进技术有限公司 | Resource distribution method, device, equipment and computer readable storage medium |
| CN110764899A (en) * | 2019-09-03 | 2020-02-07 | 无锡华云数据技术服务有限公司 | Resource quota management method, resource processing method, device, equipment, system and medium |
| CN111090389B (en) * | 2019-10-31 | 2021-06-29 | 苏州浪潮智能科技有限公司 | Method and device for releasing cache space and storage medium |
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