CN103399786A - Outbound service implementation method and system based on contexts in operation - Google Patents
Outbound service implementation method and system based on contexts in operation Download PDFInfo
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Abstract
The invention discloses and provides an outbound service implementation method based on contexts in operation. The method includes the steps that a computational node initiates a connection to a control end, the control end keeps the connection as a main connection after carrying out identity identification and creates process contexts, the control end judges whether a function module which is not updated exists in existing function modules of the computational node, if the result is positive, the control end updates corresponding service functions of the function module which is not updated through the main connection, the computational node loads the function module, and the control end builds a conversation connection with the computational node through the main connection and commands the computational node to carry out data calculation and result returning through the conversation connection. The invention further provides an outbound service implementation system based on the contexts in operation.
Description
Technical field
The present invention relates to computer application field, relate in particular to and a kind ofly contextually go out standing posture method of servicing and system based on when operation.
Background technology
In going out the standing posture service architecture, by the service of control end command calculations node executing data, a kind of main process of typical traffic model is as follows:
The Distributed Services program is deployed in respectively in each computing node, comprises necessary service process in the Distributed Services program; Computing node returns and connects control end, after control end carries out necessary authentication, keeps this and connects as main connection; Control end differentiates new session by main connection and connects, and by session connection index gauge operator node, carries out data calculating and result passback.
In this model, need to solve two problems:
One, computing node service upgrade: when computing node needed update service, traditional way was by ROMPaq or manually the service routine of computing node is upgraded, restarts the computing node service routine, again Hui Lian.The escalation process underaction.
Two, the Resources Management of computing node and control end:, when the residing session abnormal ending of calculation services, when for example network disconnects, need to process the resource release And Spread of Solute.Number of patent application is that the document of CN201210521645 has disclosed and a kind ofly based on BOOST, goes out standing posture RFI/RMI service implementing method and communication system, it uses remote object as the session resource management device, use conversational contract (RMI service) to carry out management resource, under this pattern, every kind of service conversation needs independent definition session object and contract interface, when conversation-based type service increases, can increase the degree of coupling of control end and computing node.
Summary of the invention
For addressing the above problem, the technical scheme that the present invention adopts is:
Providing a kind of contextually went out the standing posture service and realizes system based on when operation, comprise control end and at least one computing node that communicates to connect with control end, described computing node comprises main connection initiation module, functional module load-on module, computing module, and described control end comprises authentication module, main link block, enquiry module, judge module, update module, conversation module; Described main connection initiation module is used for initiating to connect to control end; Described authentication module is used for the computing node of initiating to connect is carried out authentication; Described main link block is for after authentication is passed through to computing node when authentication module, keep described connection as main connection, and the establishment process context, comprising the service function table in process context, in the service function table, registration has service function corresponding to functional module; Described enquiry module is used for classification and the version number by main connection query count node existing capability module; Described judge module is used for judging according to described classification and version number whether computing node existing capability module has the functional module of not upgrading, and when judging the functional module of not upgrading, notifies computing node value-added tax function module; Described update module is used for by main connection, the corresponding service function of functional module that does not upgrade being upgraded when judge module is determined with the functional module of not upgrading, and then notifies computing node value-added tax function module; Described functional module load-on module is used for the value-added tax function module; Described conversation module is used for carrying out session connection by main connection and computing node; Described computing module is used for carrying out data according to the indication of session connection and calculates and result is returned.
Another technical solution used in the present invention is:
Provide a kind of and contextually go out the standing posture service implementing method based on when operation, comprising: S101, computing node initiate to connect to control end; S102, control end are kept described connection as main connection, and are created process context after the computing node of initiating to connect is carried out authentication, comprise the service function table in process context, and in the service function table, registration has service function corresponding to functional module; S103, control end are by classification and the version number of main connection query count node existing capability module, and according to described classification and version number, judge in computing node existing capability module whether the functional module of not upgrading is arranged, if enter step S104, if not, enter step S105; S104, control end upgrade the corresponding service function of functional module that does not upgrade by main connection; S105, computing node value-added tax function module, then enter step S106; S106, control end carry out session connection by main connection and computing node, and by session connection index gauge operator node, carry out data calculating and result passback.
Of the present invention kind contextually during based on operation go out standing posture service implementing method and system, based on the RFI service model, during the operation of use process, the automatic renewal of service module function realized in context, make the renewal process robotization, and do not need to restart service routine under most of occasion, improved the efficiency of upgrade maintenance; Use thread context managing conversation resource, saved definition and the object interface contract design of session object, improved development efficiency and reduced the degree of coupling of communicating pair.In fact, in other a lot of application scenarios, during appropriate use operation, context can reduce the program degree of coupling, such as single example of implementation process level, the thread local storage that strengthens etc.
Description of drawings
Fig. 1 a kind ofly in an embodiment of the present invention contextually goes out the standing posture service and realizes the system architecture diagram of system based on when operation;
Fig. 2 is the structured flowchart of computing node;
Fig. 3 is the structured flowchart of control end;
Fig. 4 is the functional block diagram of computing module;
Fig. 5 is the schematic diagram of context class definition;
Fig. 6 is the class definition figure of context carrier;
Fig. 7 is a kind of based on the contextual flowchart that goes out the standing posture service implementing method of when operation in an embodiment of the present invention.
The main element symbol description
Contextually go out the standing posture service and realize system 100 based on when operation; Control end 10; Computing node 20; Main connection initiation module 21; Functional module load-on module 22; Computing module 23; Authentication module 11; Main link block 12; Enquiry module 13; Judge module 14; Update module 15; Conversation module 16; Thread creation submodule 231; Binding submodule 232; Thread withdraws from submodule 233.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Seeing also Fig. 1, is a kind ofly in an embodiment of the present invention contextually to go out the standing posture service and realize the system architecture diagram of system based on when operation.Should based on when operation contextual go out the standing posture service realize system 100 comprise control end 10 and with at least one computing node 20 of control end communication connection.
See also Fig. 2, Fig. 3, Fig. 2 is the structured flowchart of computing node, and Fig. 3 is the structured flowchart of control end.Described computing node 20 comprises main connection initiation module 21, functional module load-on module 22, computing module 23.
Described control end 10 comprises authentication module 11, main link block 12, enquiry module 13, judge module 14, update module 15, conversation module 16.
Described main connection initiation module 21 is used for initiating to connect to control end 10.
Described authentication module 11 is used for the computing node 20 of initiating to connect is carried out authentication.
Described main link block 12 is used for after 11 pairs of computing node 20 authentications of authentication module are passed through, keep described connection as main connection, and the establishment process context, comprising the service function table in process context, in the service function table, registration has service function corresponding to functional module.
Wherein, at RFI, call on the model basis, the present invention is incorporated into the set of service classification in different functional modules, and each module has version number, classification information.To the service function table, the service function table has been preserved ID and the corresponding service function of each service function at the porch of module registration service function, and it is defined as follows:
Map<FunctionKey,FunctionAgent>
Described service function table is arranged in process context, so whole process can be accessed.
Classification and version number that described enquiry module 13 is used for by main connection query count node 20 existing capability modules.
Described judge module 14 is used for judging according to described classification and version number whether computing node 20 existing capability modules have the functional module of not upgrading, and when judging the functional module of not upgrading, notifies computing node 20 value-added tax function modules.
Described update module 15 is used for by main connection, the corresponding service function of functional module that does not upgrade being upgraded when judge module is determined with the functional module of not upgrading, and then notifies computing node 20 value-added tax function modules.
Particularly, new service function will be replaced old service broker's function, and session afterwards will be used new service function automatically, needn't restart the computing node service routine.Update service process itself is also a conversational services, for fear of update service and other session requests, causes access conflict, and the update service process must be completed by main connection.
Described functional module load-on module 22 is used for the value-added tax function module.
Described conversation module 16 is used for carrying out session connection by main connection and computing node 20.
Described computing module 23 is used for carrying out data according to the indication of session connection and calculates and result is returned.
Seeing also Fig. 4, is the functional block diagram of computing module.Described computing module 23 comprises that specifically thread creation submodule 231, binding submodule 232, thread withdraw from submodule 233.
Thread withdraws from submodule 233 and is used for detecting the conversation end condition while meeting when computing node 20, withdraws from thread and close file handle.Wherein, the condition of described conversation end comprises that fair termination, Network Abnormal withdraw from, serve extremely and withdraw from.
Automatically closing handle can or analyse the structure behavior and realize by context object, in windows, handle belongs to kernel objects, by unified API, can close dissimilar handle, and the function policy of therefore automatically closing handle has been simplified the management of handle resource to a certain extent.The operation context, by calling the context method of obtaining of subclass, is accessed the subclass context object.
No matter session with which kind of form stops, and file all can be released.Below that to open file be file handle to be tied to the false code of thread context.
Wherein ThreadRuntimeContext is thread context, by static function, file handle is registered in the context carrier, so file handle can discharge automatically when thread withdraws from.For other non-handle resources, also can withdraw from operation by queue_exit_handler is self-defined, be similar to the final piece in abnormality processing.
Seeing also Fig. 5, is the schematic diagram of context class definition.Contextual base class when in figure, GenericRuntimeContext is operation has encapsulated following operation:
Base class obtains the context carrier of subclass by get_context, be the whole service phase of application program the context carrier life cycle of process context subclass, and access domain is the process territory; Be the runtime of each thread the life cycle of the context carrier of thread context subclass, and access domain is the thread territory, and for example the variable of thread context setting can not be by other thread accesses.
Seeing also Fig. 6, is the class definition figure of context carrier.Wherein values is the argument table of set_value and get_value access, and handlers is the function object of queue_exit_handler operation, handles be context to analyse structure be the handle of automatically closing, section is the semaphore of limiting access competition.
When structure analysed in context, all variablees in argument table can be released, and the destructor function of object can be called; Analyse structure operation meeting and called successively, handle can be closed successively.For thread context, semaphore is void type, reaches semaphore and does not have the operation of lock and release, because with impossible appearance access competition in a thread.
During operation, the part of object most critical is when the context carrier creates and discharge.In realization, process context creates the context carrier when Execution context operation for the first time, and thread context creates the context carrier when the Execution context operation for the first time of each thread, and this does not affect the use logic.
Process context is different from single example, and single example is generally the single example in the operation module, is language level.When a process is comprised of a plurality of modules, each module can be routine for the list that same type has separately, and in the RFI model, service function need to be registered in the agent list in process territory, and the routine model of list in module can not meet the demands.In Windows, there do not is the single example of process of language level, this paper uses environmental variance in document " Modern C++Design Generic Programming and Design Patterns Applied; Andrei Alexandrescu " and the routine model realization process context of list of phoenix pattern, address by environmental variance access context carrier list example, while accessing for the first time,, because environmental variance does not exist, need to create the address of single example and the single example of registration in environmental variance.
Above-mentioned Conversation Model based on thread context, saved the object interface contract, but require the thread of each conversational services corresponding to computing node, namely when control end is initiated a conversational services, require computing node to create a new thread and be connected new a connection, all services request in the processing conversation procedure at this thread and in being connected, meanwhile, service node uses in this thread file or other resources, will be tied in thread context by service function.When session connection stops in any form, thread will withdraw from automatically, and in conversation procedure, and service function produces when thread is withdrawed from, and also stops simultaneously session connection, and the lifetime of thread and session connection is consistent.
See also Fig. 7, a kind of based on the contextual flowchart that goes out the standing posture service implementing method of when operation in an embodiment of the present invention, the method runs on and describedly contextually goes out the standing posture service and realize that in system 100, the method comprises the steps: based on when operation
Step S101, computing node initiate to connect to control end;
After step S102, control end carry out authentication to the computing node of initiating to connect, keep described connection as main connection, and the establishment process context, comprising the service function table in process context, in the service function table, registration has service function corresponding to functional module;
Wherein, at RFI, call on the model basis, the present invention is incorporated into the set of service classification in different functional modules, and each module has version number, classification information.To the service function table, the service function table has been preserved ID and the corresponding service function of each service function at the porch of module registration service function, and it is defined as follows:
Map<FunctionKey,FunctionAgent>
Described service function table is arranged in process context, so whole process can be accessed.
Step S103, control end are by classification and the version number of main connection query count node existing capability module, and according to described classification and version number, judge in computing node existing capability module whether the functional module of not upgrading is arranged, if enter step S104, if not, enter step S105;
Step S104, control end upgrade the corresponding service function of functional module that does not upgrade by main connection, then enter step S105;
Step S105, computing node value-added tax function module, then enter step S106;
Particularly, new service function will be replaced old service broker's function, and session afterwards will be used new service function automatically, needn't restart the computing node service routine.Update service process itself is also a conversational services, for fear of update service and other session requests, causes access conflict, and the update service process must be completed by main connection.
Step S106, control end carry out session connection by main connection and computing node, and by session connection index gauge operator node, carry out data calculating and result passback.
Wherein, described step S106 specifically comprises:
Step S1061, computing node after the conversational services that receives the control end initiation, are set up session connection with control end, and establishment and the only corresponding thread context of session connection;
Step S1062, computing node are after the instruction that opens file that receives the control end transmission, and with file handle and thread context binding, and backspace file handle ID is to control end;
Step S1063, when computing node detects the conversation end condition while meeting, withdraw from thread and close file handle.The condition of described conversation end comprises that fair termination, Network Abnormal withdraw from, serve extremely and withdraw from.
Of the present invention kind contextually during based on operation go out standing posture service implementing method and system, based on the RFI service model, during the operation of use process, the automatic renewal of service module function realized in context, make the renewal process robotization, and do not need to restart service routine under most of occasion, improved the efficiency of upgrade maintenance; Use thread context managing conversation resource, saved definition and the object interface contract design of session object, improved development efficiency and reduced the degree of coupling of communicating pair.In fact, in other a lot of application scenarios, during appropriate use operation, context can reduce the program degree of coupling, such as single example of implementation process level, the thread local storage that strengthens etc.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (6)
1. one kind contextually went out the standing posture service and realizes system based on when operation, it is characterized in that, comprise control end and at least one computing node that communicates to connect with control end, described computing node comprises main connection initiation module, functional module load-on module, computing module, and described control end comprises authentication module, main link block, enquiry module, judge module, update module, conversation module;
Described main connection initiation module is used for initiating to connect to control end;
Described authentication module is used for the computing node of initiating to connect is carried out authentication;
Described main link block is for after authentication is passed through to computing node when authentication module, keep described connection as main connection, and the establishment process context, comprising the service function table in process context, in the service function table, registration has service function corresponding to functional module;
Described enquiry module is used for classification and the version number by main connection query count node existing capability module;
Described judge module is used for judging according to described classification and version number whether computing node existing capability module has the functional module of not upgrading, and when judging the functional module of not upgrading, notifies computing node value-added tax function module;
Described update module is used for by main connection, the corresponding service function of functional module that does not upgrade being upgraded when judge module is determined with the functional module of not upgrading, and then notifies computing node value-added tax function module;
Described functional module load-on module is used for the value-added tax function module;
Described conversation module is used for carrying out session connection by main connection and computing node;
Described computing module is used for carrying out data according to the indication of session connection and calculates and result is returned.
2. according to claim 1ly a kind ofly contextually go out the standing posture service and realize system based on when operation, it is characterized in that, described computing module specifically comprises:
The thread creation submodule, be used for setting up session connection with control end after computing node receives the conversational services of control end initiation, and establishment and the only corresponding thread context of session connection;
The binding submodule, be used for after computing node receives the instruction that opens file of control end transmission, and with file handle and thread context binding, and backspace file handle ID is to control end;
Thread withdraws from submodule, is used for detecting the conversation end condition while meeting when computing node, withdraws from thread and close file handle.
3. according to claim 2ly a kind ofly contextually go out the standing posture service and realize system based on when operation, it is characterized in that, the condition of described conversation end comprises that fair termination, Network Abnormal withdraw from, serve extremely and withdraw from.
4. one kind contextually goes out the standing posture service implementing method based on when operation, it is characterized in that, comprising:
S101, computing node initiate to connect to control end;
S102, control end are kept described connection as main connection, and are created process context after the computing node of initiating to connect is carried out authentication, comprise the service function table in process context, and in the service function table, registration has service function corresponding to functional module;
S103, control end are by classification and the version number of main connection query count node existing capability module, and according to described classification and version number, judge in computing node existing capability module whether the functional module of not upgrading is arranged, if enter step S104, if not, enter step S105;
S104, control end upgrade the corresponding service function of functional module that does not upgrade by main connection, then enter step S105;
S105, computing node value-added tax function module, then enter step S106;
S106, control end carry out session connection by main connection and computing node, and by session connection index gauge operator node, carry out data calculating and result passback.
5. that states according to claim 4 a kind ofly contextually goes out the standing posture service implementing method based on when operation, it is characterized in that, described step S106 specifically comprises:
S1061, computing node after the conversational services that receives the control end initiation, are set up session connection with control end, and establishment and the only corresponding thread context of session connection;
S1062, computing node are after the instruction that opens file that receives the control end transmission, and with file handle and thread context binding, and backspace file handle ID is to control end;
S1063, when computing node detects the conversation end condition while meeting, withdraw from thread and close file handle.
6. that states according to claim 5 a kind ofly contextually goes out the standing posture service implementing method based on when operation, it is characterized in that, the condition of described conversation end comprises that fair termination, Network Abnormal withdraw from, serve extremely and withdraw from.
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