JP3228227B2 - New and old shared library parallel operation system, method, and storage medium storing the program - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a server application in a client-server system in which the version of an application must be changed sequentially because the system is large-scale and a shared library can be dynamically replaced. The present invention relates to a system, a method, and a recording medium on which a program thereof is recorded, in which old and new shared libraries on which the program is implemented can be operated in parallel.

[0002]

2. Description of the Related Art In a conventional client server system, an object file in which objects of one or more functions are put together is operated as a shared library. In this system, the correspondence between each shared library and the function included in each shared library is defined in advance in the object file as correspondence information. As a result, this system can dynamically replace a shared library, as described below.

That is, in a conventional system, when a request for calling a specific function is issued from an application, the corresponding information defined in a file is searched. Then, the specific function is called from the shared library based on the correspondence information obtained as a result of the search. In the conventional system, the user can dynamically change the correspondence information at an arbitrary timing to call a new function. As a result, dynamically changed new functions can be called from the shared library.

[0004]

In the [invention is a problem to be solved] large-scale client-server system, it is difficult to update all of the client side of the application at a time. Therefore, it is desirable to sequentially update the application for each of a part of the clients.

[0005] By the way, when updating a client application, it is sometimes necessary to update a server-side application. In this case, both the new and old server applications need to coexist in the server while the client sequentially updates the applications. For that purpose, both the new and old shared libraries corresponding to both the new and old server applications must be operated in parallel.

However, in the above-mentioned conventional system, revisions (version numbers) of shared libraries and functions are not managed. For this reason, there has been a problem that the old and new shared libraries and functions cannot coexist and operate in parallel.

Further, in the above-mentioned conventional system, the shared library and the function are managed only by the correspondence information. That is, the correspondence information is not defined for each server process. For this reason, in the conventional system, different shared libraries cannot be individually linked to each server process (executable file). That is, when a server application is created, the common library is linked to all server processes. As a result, in conventional systems,
There was a problem that the degree of freedom in creating an application was low.

The present invention has been made in order to solve the above-mentioned problem, and has a system which enables concurrent operation of new and old common libraries and has a high degree of freedom in creating an application.
It is an object of the present invention to provide a method and a storage medium storing the program.

[0009]

[Means for Solving the Problems]

(New and Old Shared Library Parallel Operation System) In order to achieve this object, according to the new and old library parallel operation system of the present invention, the correspondence between the function object, the version number of the function, and the shared library to which the function belongs is indicated. A definition information storage unit for storing definition information for each function, a parallel operation information storage unit for storing parallel operation information including definition information and function pointers, and a definition from the definition information storage unit at system startup A parallel operation information expanding unit for reading the information and storing the definition information in the parallel operation information storage unit; and when a command for updating the version number of the function is input to the system, the parallel operation information storage unit Concurrent operation information updating means for updating the stored concurrent operation information so that the old shared library before the update and the new shared library after the update coexist And the server process,
Process by parallel running parallel operation information for each server process
A storage unit for each process for storing as information ,
Each server process, respectively, when starting the server process, reads out the parallel operation information from the parallel operation information storage unit, the process by the parallel operation information for each server process
When a function call is requested, the parallel operation information is read from the parallel operation information storage unit, and the parallel operation information is read out from the parallel operation information storage unit.
The parallel operation information for each process of the server process is read from the storage unit for each process, and the parallel operation information is compared with the parallel operation information for each process.
A process-specific updating means for updating the process-specific parallel operation information, and a pointer of a called function from a process-specific parallel operation information synchronized with the parallel operation information, and based on the pointer, a function of a designated version number of the function is searched. And a function calling means for calling

As described above, according to the new / old shared library parallel operation system of the present invention, the definition information indicating the correspondence between the object of the function, the version number of the function, and the shared library to which the function belongs is used. That is, the version number of the function is managed.

When updating the version of the function, the concurrent operation information updating means stores the old shared library to which the function of the version number before the update belongs and the function of the version number after the update to the parallel operation storage unit. Coexist with the new shared library. Furthermore, as a result of synchronizing the parallel operation information with the process-specific parallel operation information by the process-specific updating unit, the old shared library and the new shared library coexist in the synchronized process-specific storage unit. As a result, according to the new and old shared library parallel operation system of the present invention, the old and new shared libraries and functions can coexist and operate in parallel.

Further, since both the old and new shared libraries can be operated in parallel, both the old and new server applications corresponding to both the old and new shared libraries can be operated in parallel. As a result, the part updated by the new client application can operate the new server application, while the part that remains the old client application can operate the old server application. Therefore, even in difficult large client-server system to update all client-side applications at once, it is possible to sequentially update the application by a portion of the client.

Furthermore, in the old and new shared library concurrently operating system of the present invention, each server process, a parallel operation information including definition information are defined. For this reason,
Different shared libraries can be individually linked for each server process (executable file). As a result, the degree of freedom in creating an application can be improved.

[0014] In the new and old shared library parallel operation system of the present invention, preferably, the parallel operation information updating means, when updating the parallel operation information, transmits an information update command to a specific function among the functions. If the instruction is to update the version number, a new shared library to which the specific function after updating the version number belongs is generated, and the old shared library and the new shared library to which the specific function before the version number updating belonged are generated. Is generated as a single library, parallel operation information including definition information indicating the correspondence between the specific function after version update and the old shared library, and the specific function and new function before version update. It is preferable to change the old shared library to which the non-specific function belongs to the new shared library by coexisting with parallel operation information including definition information indicating the correspondence relationship with the shared library.

With such a configuration, the new and old shared libraries can be operated in parallel only for a specific function whose version number has been updated.

Further, in the new and old shared library parallel operation system of the present invention, preferably, a replacement number whose value is replaced each time is updated is added to the parallel operation information and the parallel operation information for each process, respectively. When comparing the parallel operation information with the process-specific parallel operation information, the process-specific updating means compares the replacement number included in the parallel operation information with the replacement number included in the process-specific parallel operation information of the server process , and performs replacement. It is preferable to synchronize when the numbers match each other, and to asynchronous when the replacement numbers do not match.

As described above, if a replacement number is given,
Synchronous and asynchronous between the parallel operation information and the process-specific parallel operation information of the server process can be easily determined.

In practicing the present invention, when calling a function, the function calling means may call the latest version of the function when the version of the function is not specified. With such a configuration, a function of a specified version number or a function of the latest version number can be called.

(New and Old Shared Library Parallel Operation Method) According to the new and old shared library parallel operation method, the definition information storage unit of the present invention stores the function object, the version number of the function, and the shared library to which the function belongs. The definition information indicating the correspondence is stored for each function, and at the time of system startup, the definition information is read from the definition information storage unit, and the definition information is stored in the parallel operation information storage unit together with the function pointer, and the When a command for updating the version of the function is input, the parallel operation information stored in the parallel operation information storage unit is updated, and the old shared library before update and the new shared library after update are updated. is comorbid, when starting the server process, reads out the parallel operation information from the parallel operation information storage unit, processes the parallel operation information for each server process Stored in-process storage unit as a separate concurrent operation information, the function call is requested, reads the concurrent operation information from the parallel operation information storage unit, from the process by the storage unit of the server process process <br/> scan The parallel operation information is read out, the parallel operation information is compared with the parallel operation information by the process, and when the comparison result is asynchronous, the parallel operation information by the process is updated, and the parallel operation by the process is synchronized with the parallel operation information. The information is searched for a pointer to the called function, and based on the pointer,
There is a method to call the specified version of the function.

As described above, according to the new / old shared library parallel operation method of the present invention, the correspondence between the function object, the version number of the function, and the shared library to which the function belongs is similar to the new / old shared library operation system described above. The definition information indicating the relationship is used. That is, the version number of the function is managed.

Then, in updating the version of the function,
An old shared library to which the function of the version number before the update belongs and a new shared library to which the function of the version number after the update belongs to the parallel operation storage unit. Furthermore, as a result of synchronizing the parallel operation information with the process-specific parallel operation information, the old shared library and the new shared library coexist in the synchronized process-specific storage unit. As a result, according to the new and old shared library parallel operation method of the present invention, the new and old shared libraries and functions can coexist and operate in parallel.

Further, since both the new and old shared libraries can be operated in parallel, both the new and old server applications corresponding to both the new and old shared libraries can be operated in parallel. As a result, the part updated by the new client application can operate the new server application, while the part that remains the old client application can operate the old server application. Therefore, even in a large-scale client-server system in which it is difficult to update all the client-side applications at one time, it is possible to sequentially update the applications for a part of the clients.

In the new and old shared library parallel operation method of the present invention, parallel operation information including definition information is defined for each server process for each server process. Therefore, each server process (executable file)
Different shared libraries can be linked individually for each. As a result, the degree of freedom in creating an application can be improved.

(Recording Medium) According to the recording medium of the present invention, the definition information storage section stores the definition information indicating the correspondence between the object of the function, the version number of the function, and the shared library to which the function belongs. When the system is started, the definition information is read from the definition information storage unit in which the definition information indicating the correspondence between the object of the function, the version number of the function, and the shared library to which the function belongs is stored. Then, when the definition information is stored in the parallel operation information storage unit together with the pointer of the function, and when a command for updating the version number of the function is input to the system, the definition information is stored in the parallel operation information storage unit. to update the concurrent operation information are, and processing coexist and new shared libraries and an updated front of the old shared library, at the time of start-up of the server process, parallel operation information And read out parallel operation information from the storage unit, and a process of storing in-process storage unit as a process by parallel operation information the concurrent operation information by the server process, the function call is requested, the concurrent operation information storage unit In addition to reading the parallel operation information, it also reads the process-specific parallel operation information of the server process from the process-specific storage unit and compares the parallel operation information with the process-specific parallel operation information. If the comparison result is asynchronous, A process of updating the process-specific parallel operation information, and searching for a pointer of the called function from the process-specific parallel operation information synchronized with the parallel operation information, and calling the function of the designated version number based on the pointer. A program for causing a computer to execute the processing is recorded.

The old and new shared library parallel operation program recorded on the recording medium of the present invention can be read by a computer. The computer is controlled by this program. In other words, the computer executes the processing of this program,
New and old shared libraries can be operated in parallel.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

(1. Configuration) First, the configuration of the new and old shared library parallel operation system of this embodiment will be described with reference to FIG. FIG.
As shown in FIG. 1, the new and old shared library parallel operation system of this embodiment includes a definition information storage unit (SG definition information storage unit) 10, a parallel operation information development unit 12, a parallel operation information storage unit 14, a parallel operation command 16, A parallel operation information updating unit 18, a server process 20, and a storage unit for each process (parallel operation storage unit for each process) 22 are provided.

Each server process 20 includes a process-specific expanding means (process-specific parallel operation information expanding means) 202, a process-specific updating means (process-specific parallel operating information updating means) 204, and a function calling means 206. . In FIG. 1, one support on behalf
2 shows a server process 20.

The definition information storage unit 10 stores, for each function, definition information indicating the correspondence between the object of the function, the version number of the function, and the shared library to which the function belongs. As described above, according to the new and old shared library parallel operation system, the definition information indicating the correspondence between the object of the function, the version number of the function, and the shared library to which the function belongs is used. That is, the version number of the function is managed.

The parallel operation information expanding means 12 reads the definition information from the definition information storage unit 10 when the system is started, and expands and stores the definition information in the parallel operation information storage unit 14.

The parallel operation information storage unit 14 stores parallel operation information including definition information and function pointers.

When a command (parallel operation command) 16 for updating the version of the function is input to the system, the parallel operation information updating means 18 stores the parallel operation information stored in the parallel operation information storage unit. Update operation information. Upon updating, the parallel movement information updating unit 18 reads new correspondence information from the definition information storage unit 10 and stores this correspondence information in the parallel operation information storage unit 14. At this time, the old shared library before the update and the new shared library after the update coexist. As a result, the new and old shared libraries and functions can coexist and operate in parallel.

[0033] In addition, per-process storage unit 22, and the process by parallel operation information parallel operation information for each server process
And store.

[0034] Then, the process developing means for each server process 202, when starting the server process, reads out the parallel operation information from the parallel operation information storage unit 14, the process by concurrently the parallel <br/> operation information for each server process Operation information
And stores in the process-specific storage unit 22 as.

As described above, the parallel operation information including the definition information is defined for each server process. Therefore, different shared libraries can be individually linked for each server process (executable file). As a result, the degree of freedom in creating an application can be improved.

Further, when a function call is requested, the process-specific updating new means 204 executes the concurrent operation information storage unit 14.
, And the process-specific parallel operation information of the server process is read from the process-specific storage unit 22. Then, the parallel operation information is compared with the parallel operation information for each process. When the comparison result is asynchronous, the process-specific parallel operation information is updated.

The function calling means 206 searches the process-specific storage unit 22 for a pointer of the called function from the process-specific parallel operation information synchronized with the parallel operation information. Then, the function of the designated version number is called based on the pointer.

As described above, both the old and new shared libraries can be operated in parallel to call the function of the designated version, so that both the old and new server applications respectively corresponding to the old and new shared libraries can be operated in parallel. it can. As a result, the part updated by the new client application can operate the new server application, while the part that remains the old client application can operate the old server application. Therefore, even in a large-scale client-server system in which it is difficult to update all the client-side applications at one time, it is possible to sequentially update the applications for a part of the clients.

(2. Operation) Next, an operation example of the new and old shared library parallel operation system of this embodiment, that is, an example of a new and old shared library parallel operation method will be described.

(2.1 At System Start-Up) First, an operation at the time of system start-up will be described with reference to FIG. When the system is started, the parallel operation deployment unit 12 reads out the definition information from the definition information storage unit 10 (S1 in FIG. 2). Then, the parallel operation deployment means 12
Stores the definition information together with the function pointer in the parallel operation information storage unit 14 (S2 in FIG. 2).

Here, FIG. 6 shows the parallel operation information storage unit 14.
2 shows an example of parallel operation information including definition information and a pointer stored in the. The table shown in FIG. 6A includes the shared library “APLIB1” and its generation “1”.
And the substitution number “0” are shown. This replacement number is replaced with a value of “0” and “1” each time the shared library is updated.

Here, a logical library "APLIB" is introduced in order to treat a single shared library even when there are a plurality of shared libraries. At the stage before updating, since there is one shared library, the shared library and the logical library correspond one-to-one.

As shown in FIG. 6B, this shared library “APLIB1” includes three functions, “F
"UNC1", "FUNC2", and "FUNC3". At the stage before the update, the version number (function generation) of each function is all “1”.

(2.2 When Starting Server Process) Next, referring to FIG. 3, the operation when starting the server process will be described. When starting the server process,
First, the process by developing means 202 of the server process 20 that started reads the concurrent operation information from the parallel operation information storage unit 14 (S3 in FIG. 3). Next, process development means 2
02 indicates that the parallel operation information is processed by server process.
The process- specific parallel operation information is stored in the process-specific storage unit 22 (S4 in FIG. 3).

[0045] Here, in FIG. 7, stored in the process stated憶部14 shows an example of a process by parallel operation information including definition information and pointers. In the table shown in FIG. 7A, information indicating the replacement state is added in addition to the information shown in the table of FIG. In FIG. 7A, “replaced” is displayed as a replacement state for convenience.

As shown in FIG. 7B, a function pointer is added to the process-specific parallel operation information. In FIG. 7B, “set” is displayed as a function pointer for convenience.

(2.3 Command Input) Next, the operation at the time of command input will be described with reference to FIG. When a command 16 for updating the version of a function is input from the user to the system, the parallel operation information updating unit 18 updates the parallel operation information stored in the parallel operation information storage unit 12, The old shared library before the update and the new shared library after the update coexist.

Specifically, when the command 16 is input, the concurrent operation information updating means 18 first reads new definition information (SG definition file) from the definition information storage unit 10 (S5 in FIG. 4). Next, the parallel operation information updating means 18
Updates the parallel operation information by storing the definition information in the parallel operation information storage unit 14.

In this embodiment, when updating the parallel operation information and the process-specific parallel operation information, the parallel operation information updating means uses a command to update the version number of a specific function among the functions. . More specifically, in this embodiment, it is assumed that the version number of “FUNC2” has been updated from “1” to “2” by a command.

Here, FIG. 8 shows the parallel operation information storage unit 14.
Shows the parallel operation information at the stage after the update stored in. Here, as shown in FIGS. 8A and 8B, a new shared library “APLIB2” to which the updated version-specific function “FUNC2” belongs is added. "APL
The generation of “IB2” is “2”. In this case, the logic library “APLIB” is composed of “APLIB1” and “APLIB”.
The replacement number of “APLIB2” corresponding to “LIB2” is “1” because there is an update.

In the parallel operation information, as shown in FIG. 8B, the specific function “RUN” after the version number is updated
C2 ”and parallel operation information including definition information indicating the correspondence between the old shared library“ APLIB1 ”, the specific function“ FUNC2 ”before the version number update, and the new shared library“ APL1 ”.
IB2 "and concurrent operation information including definition information indicating a correspondence relationship with" IB2 ". In addition, the old shared library “A” to which the non-specific functions “FUNC1” and “FUNC3” belonged.
PLIB1 "is changed to a new shared library" APLIB2 ".

(2.4 At Function Call) Next, the operation at the time of function call will be described with reference to FIG. When a user requests a function call,
The process-by-process updating unit 204 stores the parallel operation information storage unit 14
Read the parallel operation information from. Further, the process-specific updating unit 204 reads the process-specific parallel operation information from the process-specific storage unit 22. And the process-specific changing means 2
Step 04 compares the parallel operation information with the parallel operation information for each process. Specifically, by updating means 204 processes, parallel
And replacement number that is included in the line operation information, flop in the server process
The replacement number included in the process-specific parallel operation information is compared (S7 in FIG. 5). Then, when the replacement numbers match, synchronization is established. When the replacement numbers do not match each other, it is determined that the numbers are not synchronized.

In this case, the replacement numbers do not match because the parallel operation information in the parallel operation information storage unit 14 has been updated by the input of the command 16 described above. For this reason, the comparison result is determined to be asynchronous (N). In this case, the process-specific updating unit 204 stores the process-specific storage unit 2
2 is updated (S in FIG. 5).
8). If it is determined to be synchronous (Y), the process-specific storage unit 22 is not updated.

FIG. 9 shows the parallel operation information for each process after the update. In FIG. 9A, “replaced state” is added to the parallel operation information shown in FIG. 8A. Here, for the sake of convenience, the replacement state is described as “replaced”. In FIG. 9B, a “function pointer” is added to the concurrent operation information shown in FIG. 8B. Here, for convenience, the function pointer is described as “set”.

Further, the function calling means 206 confirms whether or not the version number of the function to be called is specified (S in FIG. 5).
9). For example, here, the function “FUNC” of the version number “2” is used.
It is assumed that the call of "2" is requested. When the version number is specified in this way, the function of the specified version number is called. That is, the function “FUNC2” of the version number “2” is called (S10 in FIG. 5).

Further, since the version number is not specified, the function name "FUN
When "C2" is called, the function "FUNC2" of the latest version number "2" is called (S11 in FIG. 5).

When calling the function, the pointer of the called function is searched from the parallel operation information for each process synchronized with the parallel operation information, that is, the updated parallel information for each process, and based on the pointer, Call the specified version of the function.

In the above-described embodiment, an example has been described in which the present invention is configured under specific conditions. However, the present invention can be variously modified. For example, in the above-described embodiment, an example has been described in which the version number of one function “FUNC2” configuring the shared library is changed. However, in the present invention, the version of another function configuring the shared library is changed. The number may be changed, or the versions of a plurality of functions may be changed.

Further, in the above-described embodiment, an example was described in which two new and old shared libraries were operated in parallel. However, in the present invention, three or more supply libraries may be operated in parallel.

The program for operating the new and old shared libraries in parallel in this embodiment is provided, for example, as a computer-readable recording medium.
Examples of the recording medium include a magnetic recording medium, a magneto-optical recording medium, an optical recording medium, and a semiconductor memory. Further, as the magnetic recording medium, for example, an FD (floppy disk) can be cited. Further, as the optical recording medium, for example, a CD-ROM (CD ROM) can be mentioned.

Then, these recording media are loaded into, for example, a computer, and the program recorded on the recording medium is read by the computer. The computer executes the processing described in this embodiment according to the read program. As a result, the old and new shared libraries can be operated in parallel.

[0062]

As described above, according to the present invention, the definition information indicating the correspondence between the function object, the version number of the function, and the shared library to which the function belongs is used. That is, the version number of the function is managed. And
In updating the version number of the function, both the new and old shared libraries are made to coexist in the parallel operation storage unit and the process-specific storage unit. As a result, the new and old shared libraries and functions can coexist and operate in parallel.

Further, since both the old and new shared libraries can be operated in parallel, both the new and old server applications corresponding to both the old and new shared libraries can be operated in parallel. As a result, the application can be sequentially updated for each of a part of the clients.

In the new and old shared library parallel operation method of the present invention, parallel operation information including definition information is defined for each server process. Therefore, different shared libraries can be individually linked for each server process.
As a result, the degree of freedom in creating an application can be improved.

[Brief description of the drawings]

FIG. 1 is a functional block diagram illustrating a configuration of a new and old shared library parallel operation system according to an embodiment;

FIG. 2 is a flowchart for explaining an operation at system startup in the new and old shared library parallel operation method of the embodiment;

FIG. 3 is a flowchart illustrating an operation at the time of starting a server process in the new and old shared library parallel operation method according to the embodiment;

FIG. 4 is a flowchart illustrating an operation when a concurrent operation command is input in the new and old shared library parallel operation method according to the embodiment;

FIG. 5 is a flowchart illustrating an operation when a function is called in the new and old shared library parallel operation method according to the embodiment;

FIGS. 6A and 6B are diagrams for explaining pre-update parallel operation information stored in a parallel operation information storage unit;

FIGS. 7A and 7B are diagrams for explaining process-specific parallel operation information before update stored in a process-specific parallel operation information storage unit;

FIGS. 8A and 8B are diagrams for explaining updated parallel operation information stored in a parallel operation information storage unit.

FIGS. 9A and 9B are diagrams for explaining updated process-specific parallel operation information stored in the process-specific parallel operation information storage unit;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 SG definition information storage part 12 Parallel operation information development means 14 Parallel operation information storage part 16 Parallel operation command 18 Parallel operation information update means 20 Server process 22 Parallel operation information storage part for every process 202 Parallel operation information development means for each process 204 Process Concurrent operation information updating means 206 Function calling means

Claims (6)

(57) [Claims] A definition information storage unit for storing, for each function, definition information indicating a correspondence between a function object, a version number of the function, and a shared library to which the function belongs; A parallel operation information storage unit for storing parallel operation information including a pointer; and a parallel operation for reading out the definition information from the definition information storage unit when the system is started, and storing the definition information in the parallel operation information storage unit. When a command for updating the version number of the function is input to the operation information expanding means and the system, the parallel operation information stored in the parallel operation information storage unit is updated. a parallel operating information updating means coexist with the new shared library after updating the old shared libraries, and server processes, the parallel operation information by the server process Concurrent
A process-specific storage unit for storing as the operation information , wherein each server process reads the parallel operation information from the parallel operation information storage unit when the server process starts, and stores the parallel operation information in the server. A process-specific expansion unit that stores in the process-specific storage unit as process-specific parallel operation information in the process-specific storage unit, and when a function call is requested, the parallel operation information is read from the parallel operation information storage unit, Reading the parallel operation information by process of the server process from the storage unit by process, comparing the parallel operation information with the parallel operation information by process, and when the comparison result is asynchronous,
A process-specific updating means for updating the process-specific parallel operation information; and a process-specific parallel operation information synchronized with the parallel operation information, searching for a pointer of a called function, and, based on the pointer, A new and old shared library parallel operation system, comprising: function calling means for calling the function. Wherein old and new shared library parallel according to claim 1
In the line operation system, the parallel operation information updating means is configured to update the parallel operation information when the information update command instructs to update the version number of a specific function among the functions. Generates a new shared library to which the specified function belongs and generates a logical library that regards the old shared library and the new shared library to which the specific function before the version update belongs as one library, and updates the version number parallel operation information including definition information indicating a correspondence relationship between the parallel operation information including definition information indicating a correspondence relationship between a specific function and the old shared library, a specific function of the pre-update version number the the new shared library after old and new shared library concurrently operating system characterized by preparative is coexist, changing the old shared libraries that belonged non specific function to the new shared library. 3. The new and old shared library parallel operation system according to claim 1, wherein the parallel operation information and the process-specific parallel operation information are respectively provided with replacement numbers whose values are replaced each time an update is performed. Place the per-process update unit, when compared with the parallel operation information and the process by parallel operation information, the replacement number included in the parallel operation information, the process of the server process
A new and old shared library parallel operation system characterized by comparing replacement numbers included in separate parallel operation information and synchronizing when the replacement numbers match, and asynchronous when the replacement numbers do not match. Wherein old and new shared library parallel according to claim 1
In the line operation system, the function calling means calls the function of the latest version when the version of the function is not specified when calling the function.
Parallel operating system. 5. A definition information storage unit stores, for each function, definition information indicating a correspondence relationship between a function object, a version number of the function, and a shared library to which the function belongs. When a command to read the definition information from the definition information storage unit, store the definition information in the concurrent operation information storage unit together with the pointer of the function in the parallel operation information storage unit, and update the version of the function is input to the system, Updating the parallel operation information stored in the parallel operation information storage unit so that the old shared library before the update and the new shared library after the update coexist, and when the server process starts, the parallel operation information storage unit after reading the parallel operation information, the parallel operation information as a process-specific parallel operation information by the server process and stored in the pro <br/> processes specific storage unit, a function of When beauty out is requested, the reads the concurrent operation information from the parallel operation information storage unit, from the per-process storage unit reads the process-specific concurrent operation information of the server process, said process by said parallel operation information Compare the parallel operation information, if the comparison result is asynchronous, update the parallel operation information for each process, and search the pointer of the called function from the parallel operation information for each process synchronized with the parallel operation information, A new and old shared library parallel operation method, wherein a specified version of the function is called based on the pointer. 6. When the system is started, the definition information is read from a definition information storage unit storing definition information indicating a correspondence relationship between a function object, a version number of the function, and a shared library to which the function belongs, and A process of storing the definition information in the parallel operation information storage unit together with the pointer of the function, and when a command for updating the version number of the function is input to the system, the definition information is stored in the parallel operation information storage unit. Updating the parallel operation information, and causing the old shared library before the update and the new shared library after the update to coexist; and reading out the parallel operation information from the parallel operation information storage unit when the server process is started. , and processing for storing in the pro <br/> processes by the storage unit as a process by parallel operation information the concurrent operation information by the server process, the function call request When that reads out the parallel operation information from said parallel operation information storage unit, reads the process-specific concurrent operation information of the server process from said process-specific storage unit, and said parallel rows operation information and the process by concurrently operating information Compare and if the comparison result is asynchronous,
A process for updating the process-specific parallel operation information; and searching for a pointer of the called function from the process-specific parallel operation information synchronized with the parallel operation information, and calling the function of the designated version number based on the pointer. A recording medium on which a program for causing a computer to execute the processing is recorded.