JPH07175671A - Process managing system - Google Patents

Abstract

PURPOSE:To restart a process and to improve the throughput of a system by managing the process inside an information processing system based on process managing information. CONSTITUTION:When an operating system (OS) starts a process managing process 1 in the case of starting the information processing system, a state transition managing means 2 discriminates the process to be started simultaneously with the start of the information processing system by referring to operational conditions in a process managing table 4 and reports this process managing information and the operational conditions to a process managing means 3. The process managing system 3 reports the starting request of the process and the allocating request of process identification informaiton to the OS. When the process identification information is possessed from the OS, the process managing means 3 registers the process identification information, the process managing informaiton and the operational conditions on an operating process registration table 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a management system of processes operating in an information processing system.

[0002]

2. Description of the Related Art In recent years, with the speeding up and diversification of information processing, there is a tendency that the functions required of an information processing system increase. Therefore, the processes operating in the information processing system are becoming diverse. Particularly, in an information processing system in which the same process cannot be activated at the same time, efficient process management is required. In other words, it is not necessary to manage the state of processes in a system that allows multiple processes to be started at the same time, but it is necessary to manage the state based on the attributes of each process in a system that cannot simultaneously start multiple processes. .

Now, a process management system of a system that makes it impossible to simultaneously start a plurality of the same processes will be described. Conventional process management is performed by the operating system of the information processing system, and the operating system is provided with a startup table in which information regarding all processes operating in the information processing system is registered.

When the information processing system is started, the operating system refers to the start table according to the boot program and starts all the processes registered in the start table. At this time, the operating system allocates process identification information that identifies each process to each process, and allocates resources and CPU occupation time to each process based on this process identification information. Further, the operating system notifies each process of the process identification information of its own process and the process identification information of the other process performing the related processing of the process.

As a result, the started process manages the state transition of its own process or other processes based on the process identification information assigned by the operating system.

The state of a process is mainly classified into an operating state, a dormant state and a stopped state. The operating state is the state of the process in which the resources and the CPU occupation time are assigned in the information processing system.

The hibernate state is a state of a process in which only resources in the information processing system are allocated and a CPU occupation time is not allocated, for example, a state of waiting for data to be processed by another process. .

The stopped state is a state of a process in which resources and CPU occupation time are not allocated. In the above-described process management method, operating processes and dormant processes are managed by the operating system, and stopped processes are not managed. So the operating system is
Process identification information that identifies each process is assigned to the process that transitions from the stopped state to the operating state and the process that transitions from the stopped state to the dormant state, and the state transition of each process is managed based on this process identification information. To do. Further, the operating system releases the process identification information assigned to the process when the process in the operating state or the dormant state transits to the stopped state, so that the process in the stopped state is not managed by the operating system.

By the way, in the above-mentioned process management method, since the process identification information is released when the process is stopped, other processes in the operating state and the operating system cannot identify the stopped process, and There is a problem that it cannot be started. Therefore, conventionally, all processes must be started at the same time when the information processing system is started, and unnecessary processes must be started when the system is started up. In addition, processes such as waiting for data reception must be managed in a dormant state, resources must be allocated to processes that are not actually operating, and resources cannot be allocated to other processes, which is inefficient. .

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and manages all processes collectively without paying attention to the process identification information assigned by the operating system, and re-executes the processes. It is an object to enable startup and improve the processing capacity of the system.

[0011]

In order to solve the above-mentioned problems, the present invention is as follows. This will be described with reference to the principle diagram of FIG.

That is, the process management system of the present invention is
A process management process 1 that manages the operation / stop of each process while pre-assigning process management information that specifies each process to all processes that operate in an information processing system such as a switching system is provided.
The process management information is notified to the process specified by the process management information in advance, and also to other processes performing related processing with this process.

The process management process 1 manages each process based on the process management information.
A process management table 4 for registering operating conditions for each process, a state transition management means 2 for discriminating a process to be operated or a process to be stopped based on the process management table 4, and an instruction of this state transition management means 2 A process management unit 3 for issuing a process start request or a process stop request to the operating system of the information processing system, and an operation process registration table 5 for registering information about the process started by the process management unit 3 are provided.

The function of each unit will be described in detail.
The process management table 4 is a table in which operation conditions of each process are registered for each process management information. The operating condition is information including, for example, a start condition, a stop condition, a restart condition, and the like.

The operating process registration table 5 registers information on the operating process for each process identification information assigned by the operating system when the process is started. This information is information including process management information and operating conditions of the process, is registered when the process is started, and is deleted when the process is stopped.

The state transition management means 2 has a function of referring to the operating conditions of the process management table 4 when the information processing system is started up and discriminating a process to be started at the same time when the information processing system is started up. Furthermore, when the state transition management means 2 receives a request to stop its own process or a request to start / stop another process from a predetermined process, it accesses the process management table 4 to determine the operating conditions of the process that is the request target. With a function of determining whether the request is a legitimate request that meets the operating conditions.

The process management means 3 has a function of notifying the operating system of a process start request or process stop request in accordance with an instruction from the state transition management means 2. Furthermore, when notifying the operating system of the process activation request, the process management means 3
A request to allocate process identification information of the process is also notified. When the process identification information is acquired from the operating system, the process identification information, the process management information of the process, and the operation condition are registered in the operation process registration table 5. On the other hand, when the stop request is notified, the process identification information of the target process is determined by referring to the operating process registration table 5, the process identification information and the stop request are notified to the operating system, and the operating process registration table is sent. The process management information and operating conditions of the process are deleted from 5.

[0018]

In the process management system of the present invention, when the information processing system is started up, the operating system first starts up the process management process 1.

In the process management process 1, the state transition management means 2 starts (1) the step of accessing the process management table 4 (2) referring to the operating conditions of each process, and starting the information processing system at the same time. Step of discriminating a process to be executed (3) The step of notifying the process management information of the process to be activated and the operation condition to the process management means 3 is sequentially executed.

Next, the process management means 3 (4) a step of notifying the operating system of the process start request and the process identification information allocation request notified from the state transition management means 2 Here, from the operating system When the process identification information is acquired, (5) together with the process identification information, the process management information and operation conditions of the process are registered in the operation process registration table 5
The steps for registering with are executed sequentially.

In addition, when a predetermined process makes a request to start a process in a stopped state, the predetermined process adds the notified process management information to the start request and notifies the process management process 1.

At this time, in the process management process 1, the state transition simplification means 2 includes (1) a step of detecting process management information of a process to be started from a start request (2) a process management table 4 based on the process management information (3) collating the operating conditions of the process to be started with the start request to determine whether the start request is a valid request. Here, the start request is a valid request. If there is, (4) the step of notifying the process management information of the process and the operating conditions to the process management means 3 is sequentially executed.

Next, the process management means 3 (5) a step of notifying the operating system of the process start request and the process identification information allocation request notified from the state transition management means 2 Here, from the operating system When the process identification information is acquired, the step (6) of sequentially registering the process management information and the operation condition of the process in the operation process registration table 5 together with the process identification information is sequentially executed.

Further, when a process in the active state makes a stop request for its own process or another process,
The process management information of the own process or the process management information of another process notified in advance is added to the stop request and the process request is notified to the process management process 1.

In the process management process 1, the state transition management means 2 (1) detects the process management information of the process to be stopped from the stop request (2) The process management table 4 based on the process management information (3) collating the operating conditions of the process to be stopped with the stop request to determine whether the stop request is a valid request. Here, the stop request is a valid request. If there is, (4) the step of notifying the process management information of the process to the process management means 3 is sequentially executed.

Next, the process management means 3 (5) a step of accessing the operation process registration table 5 based on the process management information notified from the state transition management means 2 (6) From the operation process registration table 5 to the process (7) Notifying the operating system of the process identification information and the stop request (8) Sequentially deleting the process management information and the operating condition of the process from the operating process registration table 5 Run.

Furthermore, when a process in an operating state makes a restart request for a process that has been stopped, process notification information (process management information of a process to be restarted) notified in advance is added to the restart request. Notify the process management process 1.

At this time, in the process management process 1, the state transition simplification means 2 (1) detects the process management information of the process to be restarted from the restart request (2) Process management based on the process management information Step of accessing table 4 (3) Step of collating the operating condition of the process to be restarted with the restart request to determine whether the restart request is a valid request Here, the restart If the request is a legitimate request, (4) the step of notifying the process management information and the operating condition of the process to the process management means 3 is sequentially executed.

Next, the process management means 3 (5) a step of notifying the operating system of the process restart request and the process identification information allocation request notified from the state transition management means 2 Here, the operating system When the process identification information is acquired from (6), the step (6) of sequentially registering the process management information and the operation condition of the process in the operation process registration table 5 together with the process identification information is sequentially executed.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing a schematic configuration of the information processing system.

This information processing system is a system capable of performing parallel processing of up to three processes, and secures resources in the information processing system for each process stored in the file storage device 11 and allocates CPU 9 occupied time. Allocate and execute processing. Then, the system outputs the execution result from the output device 10.

The information processing system of this embodiment is provided with a process management system 8 which determines a process to be started or stopped and notifies the operating system 6 of this process start request or stop request. Furthermore, a process management number for identifying each process is assigned to each process in advance.

The functions of the process management system 8 will be described in detail below. FIG. 3 is a block diagram showing the configuration of the process management system 8 according to the present embodiment by function.

The process management system 8 has a process management process 7a for managing the state transition of a process to be operated in the information processing system. The process management process 7a includes a state transition management unit 70 and a process management. It has a table 71 and an operation process registration table 72.

The process management table 71 is a table in which the operating conditions of all processes operating in the information processing system are registered, and a specific example thereof is shown in FIG. In the process management table 71 in the present embodiment, the operating conditions of each process are registered for each process management number pre-assigned to each process.

The operating conditions are a start timing identification flag for identifying the start / stop timing, a priority order for identifying a process to be started preferentially among a plurality of processes which are started at the same time,
This is information including the storage location of each process in the file storage device 10.

In the figure, the start timing identification flag "1"
Is a flag indicating a process that should be started at the same time as the start of the information processing system. The start time identification flag "2" is
This is a flag that indicates a process that is activated by an activation request from a predetermined process. The activation time identification flag “3” is a flag that indicates a process that is temporarily stopped and then restarted in response to a restart request from a predetermined process.

The state transition management unit 70 has a function of referring to the activation time identification flag of the process management table 71 when the information processing system is activated, and determining a process to be activated at the same time as the activation of the information processing system, and an activation from a predetermined process. / When a stop request is received, it has a function of referring to the start timing identification flag and determining whether or not the request is a valid request. Further, the state transition management unit 70 has a function of referring to the priority order of the process management table 71 and determining the three processes having high priority orders when activating four or more processes at the same time.

Specifically, the state transition management unit 70 includes an analysis unit 70a, a process identification number acquisition processing unit 70b, and a process state transition request processing unit 70c. Analysis unit 70
a has a function of referring to the process management table 70a when the information processing system is started and determining a process to be started at the same time as the start of the information processing system, and the process management table 7 when a start / stop request is received from a predetermined process.
1 has a function of determining whether or not the request is a valid request.

The process identification number acquisition processing unit 70b has a function of acquiring the process identification number via the process management unit 73 when the process is activated. The process state transition request processing unit 70c has a function of issuing a process activation request / stop request to the process management unit 73.

Next, the operation process registration table 72
FIG. 5 is a table for registering information about processes in operation, and a specific example thereof is shown in FIG. The operating process registration table 72 in this embodiment includes an identification number storage area for storing the process identification number of a process in the operating state and a process information storage area for storing information about the process in the operating state. In this embodiment, since three processes can be activated at the same time, three identification number storage areas and three process information storage areas corresponding to the respective identification number storage areas are provided.

In the identification number storage area, the process identification number to be assigned to the process in the operating state of the operating system 6 is stored. In this embodiment, the process identification numbers 1 to 3 are registered in advance.

The process information storage area stores a process management number, a start time identification flag, a priority order, and storage position information. Here, when a process identification number "1" is assigned to this process when a certain process is started, information about the process, that is, the process management number of this process, is stored in the process information storage area corresponding to the process identification number "1". , A start time identification flag, a priority order, and storage location information are stored. On the other hand, when the process is stopped, the information in the process identification information storage area corresponding to the process identification number "1" is erased.

When the process management section 73 receives the process identification number acquisition request from the process identification number acquisition processing section 70b, it refers to the operating process registration table 72 to determine the process identification number for which the process information storage area is in an empty state. , Has a function of issuing a process identification number allocation request to the operating system 6. Further, it has a function of acquiring a process identification number from the operating system 6. Further, it has a function of registering information about the process in the operation process registration table 72 when receiving a process activation request from the process state transition request processing unit 70c. Furthermore, at the time of stopping the process, a function of notifying the operating system 6 of the process identification number of this process and the stop request, and at the same time erasing the information about the process from the process information storage area corresponding to the process identification number. Have.

Next, the operation process of the process management system in this embodiment will be described. First, the operation process of the state transition management unit 70 at the time of starting the information processing system will be described with reference to the flowchart of FIG.

When the information processing system is activated, the operating system 6 activates the process management process 7a according to the boot program, and the process management process 7a is activated.
In a, the state transition management unit 70 is activated.

In the state transition management unit 70, the analysis unit 70a refers to the activation timing identification flag of the process management table 71 and detects the process management number of the process to be activated at the same time when the information processing system is activated (step 601).
Then, the analysis unit 70a notifies the process management number acquisition processing unit 70b of the process management number.

The process identification number acquisition processing unit 70b notifies the process management unit 73 of the process management number and the process identification number acquisition request received from the analysis unit 70a (step 602).

When the process identification number acquisition unit 70b receives the process identification number acquisition data (see FIG. 7) composed of the process management number and the process identification number from the process management unit 73 (step 603), the process identification number is acquired. The acquired data is transferred to the process state transition request processing unit 70c.
Notify to.

The process state transition request processing unit 70c detects the process management number from the process identification number acquisition data. Then, the process state transition request processing unit 70c
The process management table 71 is accessed based on the process management number, and the start timing identification flag, priority order, and storage location information of the process are read (step 604). Further, the process state transition request processing unit 70c
Processes the process start request data (see FIG. 8) including the process identification number, the process management number, the start time identification flag, the priority order, and the storage position information.
(Step 605).

Next, the operation process of the process management unit 73 when the information processing system is activated will be described with reference to FIG. When the process management unit 73 receives the process management number and process identification number acquisition request from the state transition management unit 70 (step 901), the operation process registration table 7
An arbitrary process identification number is detected from the process identification numbers registered in No. 2, and a request to allocate this process identification number is issued to the operating system 6 (step 902).

When the process management section 73 receives the process identification number allocation permission from the operating system 6, the process identification number acquisition data composed of the process identification number and the process management number (see FIG. 7).
To the state transition management unit 70 (step 903).

Next, when the process management unit 73 receives the process activation request data (see FIG. 8) from the state transition management unit 70 (step 904), it issues an activation request to the operating system 6 together with the process identification number. (Step 905).

As described above, in this embodiment, it is possible to activate only the processes required when the information processing system is activated. FIG. 10 shows process A to process B in the operating state.
FIG. 6 is a flowchart showing an operation process of the state transition management unit 70 when receiving the activation request of the.

When the process management process 7a receives a process B activation request from the operating process A (step 1001), the state transition management unit 70 causes the analysis unit 70a to obtain the process B process management number from the activation request. To detect. Then, based on this process management number, the activation timing identification flag of the process management table 71 is referred to, and it is determined whether or not the activation request is a valid request (step 1002).

Here, if the activation request is a valid request, the analysis unit 70a notifies the process identification number acquisition processing unit 70b of the process management number of the process B. The process identification number acquisition processing unit 70b notifies the process management unit 73 of the process management number of the process B and the process identification number acquisition request of the process B (step 1003,
1004).

When the process identification number acquisition processing unit 70b receives the process identification number acquisition data composed of the process management number of the process B and the process identification number from the process management unit 73 (step 1005), the process identification number acquisition process is acquired. The data is notified to the process state transition request processing unit 70c.

The process state transition request processing unit 70c detects the process management number of the process B from the process identification number acquisition data, and accesses the process management table 71 based on this process management number. Then, the process state transition request processing unit 70c reads the priority order and storage location information of the process B from the process management table 71 (step 1006). Further, the process state transition request processing unit 70c uses the process identification number of the process B,
The process management request data (see FIG. 8) including the process management number, the priority order, and the storage location information is notified to the process management unit 73 (step 1007).

Next, the operation process of the process management unit 73 when a process B activation request is received from the operating process A will be described with reference to FIG. Process management unit 7
When receiving the process identification number acquisition request from the state transition management unit 70 (step 1101), the process 3 refers to the operation process registration table 72 and determines the process identification number for which the process information storage area is empty (step 110).
2).

If there is an empty process identification number (step 1103), the process management unit 73
Issues a request to allocate the process identification number to the operating system 6 (step 1104).

When the process management section 73 receives the permission to allocate the process identification number from the operating system 6, the process management number acquisition data including the process management number of the process B and the process identification number is transferred to the state transition management section. 70 (step 110)
5).

When the process management unit 70 receives the process restart request data of the process B (see FIG. 8) from the state transition management unit 70 (step 1106), it issues a process B startup request to the operating system 6. At the same time (step 1107), the process management number, priority, and storage location information of process B are registered in the operation process registration table 72 (step 110).
8).

In this way, by managing the processes in the information processing system based on the process management number,
A stopped process can be activated during the operation of the information processing system.

Next, the operation process of the state transition management unit 70 when a process stop request for another process is received from a process in the operating state will be described with reference to the flowchart of FIG. When the process management process 7a receives a request to stop the process B from the process A (step 1201), the analysis unit 70a in the state transition management unit 70 detects the process management number of the process B from the stop request. Then, based on this process management number, the process management table 71
By referring to the activation timing identification flag of No. 1, it is determined whether the activation request is a valid request, that is, whether the process B is a process that should be restarted after being temporarily stopped (step 1202).

Here, if the restart request is a valid request (step 1203), the analysis unit 70a sends the process B
Process management number of the process identification number acquisition processing unit 70
Notify b.

The process identification number acquisition processing unit 70b requests the process management unit 73 to release the process identification number of the process B (step 1204). Process management unit 7
When the process identification number release permission is received from the process identification number 3 (step 1205), the process identification number acquisition processing unit 70b.
Notifies the process state transition request processing unit 70c of the process identification number and process management number of process B.

The process state transition request processing unit 70c notifies the process management unit 73 of a stop request including the process identification number and the process management number (step 1206).
Here, an operation process of the process management unit 73 when the process A restart request is received from the process A is illustrated in FIG.
Follow along.

The process management section 73 is the state transition management section 7
When a process identification number release request for process B is received from 0 (step 1301), the operating process registration table 72 is accessed based on the process management number of process B, and the process identification number of process B is detected (step 1302). Then, the process management unit 73 issues a process identification number release request for the process B to the operating system 6 (step 1303).

When the process management section 73 receives the process identification number release permission of the process B from the operating system 6 (step 1304), it notifies the state transition management section 70 of this (step 1305).

Further, the process management unit 73 receives a stop request including the process identification number of the process B and the process management number from the state transition management unit 70 (step 13).
06), at the same time when the process B stop request is issued to the operating system 6 (step 1304), the information about the process B, that is, the process management number, the priority order, and the storage location information are deleted from the operating process registration table 72 (step 1307). ).

The operation process of the state transition management unit 70 when a restart request for the process B is received from a predetermined process will be described with reference to FIG. When the process management process 7a receives a restart request for the process B from a predetermined process (step 1401), the state transition management unit 7
At 0, the analysis unit 70a detects the process management number of the process B from the restart request (step 140).
2).

The analysis unit 70a refers to the start timing identification flag of the process management table 71 based on the process management number of the process B, and determines whether or not the restart request is a valid request (step 1403). .

If the restart request is a valid request (step 1404), the analysis unit 70a determines the process management number of the process B as the process identification number acquisition processing unit 7.
Notify 0b.

The process identification number acquisition processing unit 70b notifies the process management unit 73 of the process management number of the process B and the process identification number acquisition request (step 140).
5). When the process identification number acquisition data is received from the process management unit 73 (step 1406), the process identification number acquisition data is transferred to the state transition request processing unit 70.
Notify c.

The state transition request processing unit 70c detects the process management number of the process B from the process identification number acquisition data, accesses the process management table 71 based on this process management number, and determines the priority order and storage position of the process B. The information is read (step 1407). further,
The state transition request processing unit 70c notifies the process management unit 73 of an activation request including the process identification number, the process management number, the priority order, and the storage location information (step 140).
8).

At this time, the operation process of the process management unit 73 is the same as the activation process shown in FIG. As described above, in the present embodiment, by managing each process by the process management number in the process management system, the process can be started / stopped / restarted without being aware of the operating system.

[0077]

According to the present invention, the states of processes operating in the information processing system can be collectively managed, and the processes can be efficiently started, stopped, restarted, and suspended. Therefore, it becomes possible to flexibly deal with the improvement of the processing capacity of the system and the expansion of the function of the system.

[Brief description of drawings]

FIG. 1 is an explanatory view of the principle of the present invention.

FIG. 2 is a schematic block diagram of an information processing system according to the present embodiment.

FIG. 3 is a block diagram showing a functional configuration of a process management system.

FIG. 4 is a specific example of a process management table.

FIG. 5 is a specific example of an operation process registration table.

FIG. 6 is an operation flowchart of the state transition management unit when the information processing system is activated.

FIG. 7: Structure of process identification number acquisition data

FIG. 8: Structure of process start / restart request data

FIG. 9 is an operation flowchart of the process management unit when the information processing system is activated.

FIG. 10 is an operation flowchart of the state transition management unit when a request to start another process is received from a process in an operating state.

FIG. 11 is an operation flowchart of the process management unit when a request to start another process is received from a process in an operating state.

FIG. 12 is an operation flowchart of the state transition management unit when a request to stop another process is received from a process in an operating state.

FIG. 13 is an operation flowchart of the process management unit when a request to stop another process is received from a process in an operating state.

FIG. 14 is an operation flowchart of the state transition management unit when a restart request for another process is received from a process in an operating state.

[Explanation of symbols]

 1 ... Process management process 2 ... State transition management unit 3 ... Process management means 4 ... Process management table 5 ... Operating process registration table 6 ... Operating system 7 ... Process management system 7a ... Process management process 70 State transition management unit 70a Analysis unit 70b Process identification number acquisition processing unit 70c Process state transition request processing unit 71 Process management table 72 Action process registration table 73 Process management unit 8 .CPU 9 ... Output device 10 ... File storage device

Claims (4)

[Claims] 1. A process in which process management information for identifying each process is assigned in advance to all processes to be operated in the information processing system, and operation conditions of each process are registered for each process management information. A management table (4), an operation process registration table (5) for registering information on a process in an operation state for each process identification information assigned by the operating system of the information processing system when a process is activated, and the process management table (4) State transition management means (2) for determining a process to be started or stopped based on the above), and a request to start or stop each process to the operating system according to the instruction of the state transition management means (2). In addition to the above, when starting and stopping each process A process management process (1) having a process management means (3) for updating the contents of the work process registration table (5), wherein the operating system executes the process management process (1) when the information processing system is started. Upon activation, in the process management process (1), the state transition management means (2) refers to the operating condition of the process management table (4) to identify the process to be activated at the same time as the activation of the information processing system. The process management means (3) for determining the process management information and operating conditions of this process.
The process management means (3) notifies the operating system of the process start request and the process identification information allocation request, and when the process identification information is acquired from the operating system, the process identification information And a process management information of the process and operation conditions are registered in the operation process registration table (5). 2. The process management process according to claim 1, wherein when the process management process (1) receives a request to stop its own process or another process from a predetermined process, the state transition management means (2) receives the stop request from the process. The process management information of the process to be stopped is detected, the operating condition of the process management table (4) is referred to based on the process management information, and it is determined whether or not the stop request is a valid request. If the stop request is a valid request, the process management information of the process is notified to the process management means (3), and the process management means (3) uses the operation process registration table (based on the process management information based on the process management information. 5), the process identification information of the process is discriminated, and the process identification information and the stop request are sent to the operating system. 2. The process management method according to claim 1, wherein the process management information and the operating condition of the process are deleted from the operating process registration table (5) while notifying the system. 3. The process management process according to claim 1, wherein the process management process (1) receives a start request for another process from a process in an operating state, and the state transition management means (2) receives the other request from the start request. The process management information of the process is detected, the operating condition of the process management table (4) is referred to based on the process management information, and it is determined whether or not the activation request is a valid request. If the request is valid, the process management means (3) is notified of the process management information and the operating condition of the other process, and the process management means (3) requests the operating system to start the other process. And a process identification information allocation request, and when the process identification information of the other process is acquired from the operating system, Process management method and registers the process identification information and the process management information and operating conditions of the process to the operation process registration table (5). 4. The process management process (1) according to claim 1, wherein when the process management process (1) receives a restart request for another process once stopped from an operating process, the state transition management means (2) restarts the process. The process management information of the other process is detected from the start request, and the process management table (4) is based on the process management information.
Of the restart request is determined by referring to the operating conditions of the other, and if the restart request is a valid request, the process management information and the operating conditions of the other process are set to the process management. The process management means (3) notifies the operating system of a start request of the other process and a request to allocate process identification information, and the operating system notifies the process identification of the other process. A process management method characterized in that, when the information is acquired, the process identification information, the process management information of the process, and the operation condition are re-registered in the operation process registration table (5).