KR100456794B1 - Virtual Machine for No.7 Application and Method for Processing of Message using it - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a virtual device for a common line signal application and a message processing method using the same.

2. The technical problem to be solved by the invention

The present invention provides a virtual device for a common line signal application that enables an application to be easily created without specific knowledge of the common line signal (No. 7) API and can be supported without having to redesign the structure even when a new protocol is added or changed. And a computer readable recording medium storing a message processing method using the same and a program for realizing the method.

3. Summary of Solution to Invention

The present invention provides a virtual apparatus for a common line signal application, comprising: message handling means for receiving and interpreting a common line signal (No. 7) message; Various data necessary for processing the common line signal (No. 7) message received through the message handling means are stored in a memory area, and the virtual machine code associated with the common line signal (No. 7) message is stored. Virtual machine kerneling means for performing; SLEE control means for managing information required to perform a SLEE (Service Logic Execution Environment); SLP management means for managing the developed SLP (Service Logic Program) on the shared memory; User function storage means for storing a function used by the virtual device; Storage means for providing memory necessary for variable allocation and function stack management required by each service logic when executing the service logic of the virtual device; And a timer for handling periodic message transmission or operation timeout of the virtual device.

4. Important uses of the invention

The present invention is used for a virtual device for common line signal (No. 7) application.

Description

Virtual Machine for Common Line Signal Application and Method for Processing Message Using the Same

The present invention relates to a virtual device for a common line signal (No. 7) application, a message processing method using the same, and a computer-readable recording medium having recorded thereon a program for realizing the method.

Conventionally, in order to create an application based on the common line signal (No. 7) protocol, a common line signal (No. 7) application program interface (hereinafter referred to as “API”) that is dependent on the protocol is used. In other words, the written application had a closed structure rather than an open structure because it was dependent on the common signal (No. 7) protocol. Whenever a protocol evolved or a new protocol was added, a new API was used to support the protocol. There was a problem to redesign and implement.

The present invention is proposed to solve the above problems, and it is necessary to easily write an application without specific knowledge of the common line signal (No. 7) API and to redesign the structure even if a new protocol is added or changed. It is an object of the present invention to provide a virtual device for a common line signal application that can be supported without a message, a message processing method using the same, and a computer-readable recording medium having recorded thereon a program for realizing the method.

1 is a diagram illustrating an embodiment of a virtual machine for performing a common line signal (No. 7) application according to the present invention.

2 is a block diagram of an embodiment of a virtual machine for a common line signal (No. 7) application according to the present invention.

3 is a diagram illustrating an embodiment of a virtual machine storage structure in accordance with the present invention.

4 is a diagram illustrating an embodiment of a message processing method using a virtual machine according to the present invention.

5 is a flowchart illustrating a message processing method using a virtual machine according to the present invention.

6 is an exemplary diagram of a script in a virtual machine for a common line signal (No. 7) application according to an embodiment of the present invention.

7 is an exemplary diagram of virtual machine code running in a virtual machine for common line signal (No. 7) application in accordance with one embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

210: virtual machine 211: SLEE control information

212: User Function Library 213: SLP Manager

214: ASN.1 Enc / Dec 215: Virtual Machine Kernel

216: heap 217: message handler

218: timer

According to an aspect of the present invention, there is provided a virtual apparatus for a common line signal application, comprising: message handling means for receiving and interpreting a common line signal (No. 7) message; Various data necessary for processing the common line signal (No. 7) message received through the message handling means are stored in a memory area, and the virtual machine code associated with the common line signal (No. 7) message is stored. Virtual machine kerneling means for performing; SLEE control means for managing information required to perform a SLEE (Service Logic Execution Environment); SLP management means for managing the developed SLP (Service Logic Program) on the shared memory; User function storage means for storing a function used by the virtual device; Storage means for providing memory necessary for variable allocation and function stack management required by each service logic when executing the service logic of the virtual device; And a timer for processing periodic message transmission or operation timeout of the virtual device.

Further, the present invention further comprises ASN.1 encoding / decoding means for encoding / decoding the common line signal (No. 7) message described as Abstract Syntax Notation One (ASN.1). It is done.

On the other hand, the method of the present invention, in the message processing method for common line signal application, the initialization step of initializing the application initialization routine, various variables of the virtual machine; A determination step of determining whether a common line signal (No. 7) message is received through the virtual machine handler; As a result of the determination in the determination step, when the common line signal (No. 7) message is received, the common line signal (No. 7) message is decoded, and it is determined whether the common line signal (No. 7) message is the start of a new service. Confirming step; As a result of the checking step, if the common line signal (No. 7) message is the start of a new service, the SLP (Service Logic Program) is allocated and then the virtual machine code is executed. Performing a virtual machine code; And a job processing step of performing a suspend job process / timeout occurrence job process if the common line signal No.7 message is not received as a result of the determination in the determination step, and proceeding to the determination step. Characterized in that.

On the other hand, the present invention, for the common line signal application, a virtual device having a processor, the initialization function for initializing the application initialization routine, various variables of the virtual machine; A determination function of determining whether a common line signal (No. 7) message is received through the virtual machine handler; As a result of the determination function, when the common line signal (No. 7) message is received, the common line signal (No. 7) message is decoded, and whether the common line signal (No. 7) message is the start of a new service is determined. To check function; As a result of confirming the check function, if the common line signal (No. 7) message is the start of a new service, the SLP (Service Logic Program) is allocated and then the virtual machine code is executed. A virtual machine code execution function to perform; And performing a suspend job process / timeout occurrence job process if the common line signal (No. 7) message is not received as a result of the determination of the judgment function, and proceed to the determination step. A computer readable recording medium having a program recorded thereon is provided.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating an exemplary process of executing a virtual machine for a common line signal (No. 7) application according to the present invention. In the drawing, reference numeral 110 denotes a service creation environment (SCE). "120" is Editor (text environment), "130" is Platform, "131" is Service Logic Program Compiler, "132" is Service Logic Assembler, and "133" Each represents a virtual machine.

As shown in FIG. 1, when an additional service is to be provided using a protocol used in a common line signal (No. 7), a specification must be specified in a script language that proposes specific details of an execution process. For example, a specific service such as a prepaid call service may be specified by a script using the WIN protocol among the common line signal (No. 7) protocols. In other words, the scenario (service logic) necessary to provide a prepaid card service is represented by a script.

Service Creation Environment (SCE) 110 is a tool that specifies a scripting language. Here, there are two ways to specify the scripting language.

The first is to specify the graphical user interface (GUI) using the service creation environment (SCE) 110 tool, and the second is to specify the script using the editor 120 directly on the platform 130. This is the case. The result of the two methods is a script for the task to be performed.

Scripts generated by the above two methods are converted into SLP composed of virtual machine code by the SLP compiler 131. Here, the SLP compiler 131 exists as an independent process in the platform 130.

The generation of the SLP converts the SLP for performing the work, which is composed of the virtual machine code output by the SLP compiler 131, into a binary SLP that can be used in the virtual machine 133 by the SLP assembler 132. do. Here, the SLP assembler 132 exists as an independent process in the platform 130. Here, the virtual machine code is designed for the development of additional services using the common line signal (No. 7) protocol, includes a common line signal (No. 7) message processing function, the variable declaration, operation of a general programming language It has features such as branching, control, exception handling, and function calls.

The SLP in binary form output from the SLP assembler 132 is loaded by the SLP manager existing in the common line signal (No. 7) application 133.

This will be described in more detail as follows.

If the additional service is to be provided using the protocol used in the common line signal (No. 7), the detailed information on the execution process is first described using the service creation environment 110 or the editor 120 in the platform 130. Specify in scripting language.

The script in which the task is specified is converted into virtual machine code, which is a code that can be interpreted and executed in the virtual machine 133 through a compilation process.

The converted virtual machine code is executed in accordance with the job specification that specifies the application while performing the line-by-line analysis process by the interpreter in the virtual machine 133.

2 is a configuration diagram of a virtual machine for a common line signal (No. 7) application according to the present invention.

As shown in FIG. 2, a virtual machine for a common line signal (No. 7) application according to the present invention includes a message handler 217 for receiving and interpreting a common line signal (No. 7) message, and a message handler. A virtual that stores various data necessary for the processing of the common line signal (No. 7) message received through 217 in a memory area and performs a virtual virtual machine code related to the common line signal (No. 7) message. SLP manager 213 for managing the machine kernel 215, SLEE control information 211 that manages all the information required to execute SLEE (Service Logic Execution Environment), and developed Service Logic Program (SLP) on shared memory And a user function library 212 that stores functions used by the virtual machine, and a memo required for variable allocation and function stack management required by each service logic when the virtual machine executes service logic. And a heap (Heap) (216) and, and a timer 218 for processing a periodic message transmitted or time-out operation to provide a.

In addition, the virtual machine for the common line signal (No. 7) application according to the present invention is ASN.1 Enc./Dec. (Encode / Decode) encoding / decoding a message described as Abstract Syntax Notation One (ASN. More).

The components of the virtual machine for the common line signal (No. 7) application according to the present invention will be described in more detail as follows.

First, the message handler 217 receives and interprets a common line signal (No. 7) message, and the virtual machine kernel 215 stores various data necessary for processing operations on the received message in a memory area. Perform the actual virtual machine code associated with

The SLEE control information 211 manages all information necessary to perform the SLEE. For example, it includes information about protocols, information about resources used in SLEE, and so on. Here, SLEE provides an environment in which service logic can be executed, includes virtual machine code, and executes various service logics (additional services) developed in virtual machine code.

The SLP manager 213 is a module that manages the developed SLP on the shared memory, and performs functions such as adding, deleting, changing, activating, and deactivating the SLP. Here, SLP means service logic composed of virtual machine code.

The user function library 212 is described as follows.

The virtual machine provides an Open Application Program Interface (Open API) that allows developers to do "C" language programming directly for encoding / decoding common line signal (No.7) messages or to support user defined functions. Therefore, the user function library 212 is called and used during the execution of the service logic of the virtual machine 210 by the developer as an open application program interface program. In addition, the user function library 212 allows developers to add the necessary functionality directly.

ASN.1 Enc./Dec. 214 is a routine for encoding / decoding a message described in ASN.1. The common line signal (No. 7) message is decoded using the ASN.1 library. The message transmitted to the external system by the virtual machine kernel 215 is encoded in a format determined for each protocol.

Heap 216 provides the memory required for the variable allocation and function stack management required by each service logic when the virtual machine executes the service logic.

The timer 218 is managed to handle periodic message transmission or operation timeout. All common line signal (No. 7) messages have a timer defined in the specification. If there is no response within a given time, the virtual machine 210 times out and processes it according to an exception handler. In addition, timer management is performed for operations that are periodically transmitted, such as a reset timer operation.

FIG. 3 is a diagram illustrating an embodiment of a virtual machine storage structure according to the present invention and illustrates where to store data required for working in a virtual machine for a common line signal (No. 7) application.

As mentioned in FIG. 2, the common line signal (No. 7) protocol message received through the message handler 217 includes data used to perform a task.

The virtual machine 210 uses this data to store the data in the heap 301, register 302, and stack 303 to execute the virtual machine code.

The heap 301 is assigned a variable length variable, and the register 302 stores a variable length variable. In addition, the stack 303 stores call information between functions used to perform a task.

On the other hand, the arithmetic logic unit (ALU) 304 shown in FIG. 3 generally refers to a module that performs a calculation operation in a CPU, and means a module that executes virtual machine code in a virtual machine. For example, all virtual machine code such as addition operation (ADD), subtraction operation (SUB), multiplication operation (MUL), comparison operation (CMP) is executed.

4 is a diagram illustrating a message processing method using a virtual machine according to an embodiment of the present invention, in which a virtual function parameter is mapped to an internal variable in a virtual machine in a virtual machine for a common line signal (No. 7) application. The process is shown.

As shown in FIG. 4, the parameters 402 of the common line signal (No. 7) message received through the message handler 401 are used in the virtual machine kernel 403 to be used in the virtual machine for processing the message. ) Is mapped to a register 403 inside the.

The value stored in the register 404 is used to execute the virtual machine code.

The operation of the message processing method using the virtual device for the common line signal application according to the present invention having the structure as described above will be described in detail as follows.

5 is a flowchart illustrating a message processing method using a virtual machine according to the present invention.

As shown in FIG. 5, in the message processing method using the virtual machine according to the present invention, an initialization routine and various variables of an application are first initialized (501).

Next, it is determined whether a common line signal (No. 7) message has been received (502).

As a result of determination 502, if a common line signal (No. 7) message is received, the common line signal (No. 7) message is decoded (504), and whether the common line signal (No. 7) message is the start of a new service. Determine (505).

As a result of determination 505, if the common line signal (No. 7) message is the start of a new service, the SLP is allocated (506), the virtual machine code is executed (507), and the common line signal (No. 7) message is received. The process proceeds to step 502 of determining whether it has been received and proceeds to step 507 of immediately executing the virtual machine code if the common line signal (No. 7) message does not start a new service.

On the other hand, if the determination result 502 has not received the common line signal (No. 7) message, after performing the suspend task processing / timeout occurrence task processing (503), the common line signal (No. 7) In step 502, it is determined whether a message has been received.

As described above, a message processing method using a virtual device for a common line signal application according to the present invention will be described in more detail as follows.

First, the initialization process 501 is to initialize the initialization routine and various variables of the application.

Next, the process 502 of determining whether a common line signal (No. 7) message has been received is to determine whether the common line signal (No. 7) message is received from an external system through a message handler of the virtual machine.

The common line signal (No. 7) message decoding process 504 is to decode the received common line signal (No. 7) message for internal use or analysis.

The process of determining whether it is a new start 505 is to determine whether the common line signal (No. 7) message analyzed in the decoding process 504 means the start of a new service.

The SLP assignment process 506 is to assign an SLP to perform a task when a message indicating a new start is received.

The virtual machine code execution process 507 internally manages a program counter (PC: Program Count) to indicate the virtual machine code to be currently executed. When the virtual machine code needs to receive the common line signal (No. 7) message, the process proceeds to step 502 of determining whether the common line signal (No. 7) message is received again.

The suspend task / timeout process 503 is to perform a task that has timed out or to perform a delayed task when a message is not received for a certain period of time.

6 is an exemplary diagram of a script in a virtual machine for a common line signal (No. 7) application according to an embodiment of the present invention.

As illustrated in FIG. 6, in order to perform a task in a virtual machine that supports a common line signal (No. 7) application, a detailed content of the task must be specified using a script language.

Here, the scripting language has a grammatical structure similar to that of a conventional programming language, and can be easily written by anyone who has experienced programming.

7 is an exemplary diagram of a virtual machine code driven in a virtual machine for a common line signal (No. 7) application according to an embodiment of the present invention.

As shown in FIG. 7, the virtual machine code is generated through a script compilation process with a description of the job, and is converted into binary code for use in a real virtual machine.

Here, the virtual machine uses the transform virtual machine code to work on the common line signal (No. 7) protocol.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

As described above, the present invention can be used as a main module of all elements of a communication network using a common line signal (No. 7) message, and an application can be easily created without specific knowledge of the common line signal (No. 7) API. In addition, since the service execution unit and the protocol are separated by using a virtual machine for executing application service logic, there is an effect of minimizing the effect even if a new protocol is added or an existing protocol is changed.

Claims (9)

In the virtual device for common line signal application, Message handling means for receiving and interpreting a common line signal (No. 7) message; Various data necessary for processing the common line signal (No. 7) message received through the message handling means are stored in a memory area, and the virtual machine code associated with the common line signal (No. 7) message is stored. Virtual machine kerneling means for performing; SLEE control means for managing information required to perform a SLEE (Service Logic Execution Environment); SLP management means for managing the developed SLP (Service Logic Program) on the shared memory; User function storage means for storing a function used by the virtual device; Storage means for providing memory necessary for variable allocation and function stack management required by each service logic when executing the service logic of the virtual device; And Timer for handling periodic message transmission or operation timeout of the virtual device Virtual device for common line signal application comprising a. The method of claim 1, ASN.1 encoding / decoding means for encoding / decoding the common line signal (No. 7) message described as Abstract Syntax Notation One (ASN.1) The virtual device for common line signal application further comprising. The method according to claim 1 or 2, The SLEE control means, It contains information about protocols, information about resources used in SLEE, provides an environment for executing service logic, includes virtual machine code, and various service logics (additional services) developed by the virtual machine code. Virtual device for common line signal application, characterized in that for executing. The method of claim 3, wherein The SLP management means, And managing the developed SLP on a shared memory, and adding, deleting, changing, activating, and deactivating the SLP. The method of claim 4, wherein The storage means, A heap, a register, and a stack, the variable being allocated a variable length variable, the register storing a variable length variable, and the stack storing call information between functions used to perform a task. Virtual device for common line signal application, characterized in that. In the message processing method for common line signal application, An application initialization routine of the virtual machine and an initialization step of initializing various variables; A determination step of determining whether a common line signal (No. 7) message is received through the virtual machine handler; As a result of the determination in the determination step, when the common line signal (No. 7) message is received, the common line signal (No. 7) message is decoded, and it is determined whether the common line signal (No. 7) message is the start of a new service. Confirming step; As a result of the checking step, if the common line signal (No. 7) message is the start of a new service, the SLP (Service Logic Program) is allocated and then the virtual machine code is executed. Performing a virtual machine code; And As a result of the determination in the determination step, if the common line signal (No. 7) message is not received, a suspend job process / timeout occurrence job process is performed, and the job process step proceeds to the determination step. Message processing method for a common line signal application comprising a. delete The method of claim 6, The job processing step, A method of processing a message for a common line signal application, characterized in that for performing a suspend task and timeout processing, if a message is not received for a predetermined period of time, a task that performs a timeout or a delayed task is performed. In a virtual device with a processor for common line signal applications, An application initialization routine of the virtual machine and an initialization function for initializing various variables; A determination function of determining whether a common line signal (No. 7) message is received through the virtual machine handler; As a result of the determination function, when the common line signal (No. 7) message is received, the common line signal (No. 7) message is decoded, and whether the common line signal (No. 7) message is the start of a new service is determined. To check function; As a result of confirming the check function, if the common line signal (No. 7) message is the start of a new service, the SLP (Service Logic Program) is allocated and then the virtual machine code is executed. A virtual machine code execution function to perform; And As a result of the determination function, if the common line signal (No. 7) message is not received, a suspend job process / timeout occurrence job process is performed, and the job process function proceeds to the determination step. A computer-readable recording medium having recorded thereon a program for realizing this.