CN109062686A - Multi-process management method, storage medium, electronic equipment and system - Google Patents
Multi-process management method, storage medium, electronic equipment and system Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/546—Message passing systems or structures, e.g. queues
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Abstract
The invention discloses a kind of multi-process management method, storage medium, electronic equipment and systems, it is related to control technology field, this method includes the multiple name pipelines for communicating between host process and assisted process of CreateNamedPipe function creation called in Windows API calls, and each name pipeline corresponds to an assisted process；Host process calls function WriteFile that task data is written in name pipeline, and the task data of write-in is sent to corresponding assisted process；Assisted process calls function ReadFile to read task data from name pipeline；Assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process call function AtExit complete exiting for itself.Host process guarantees the normal operation of application program under more assisted process operating conditions by naming pipeline to control the execution status of task of assisted process in the present invention.
Description
Technical field
The present invention relates to control technology fields, and in particular to a kind of multi-process management method, storage medium, electronic equipment and
System.
Background technique
Currently, for the application program of some service types, especially for the application program with independent task, usually
The architecture design that multi-process can be used can make the unstable of a process not will lead to entirely using the design of multi-process
Program error, i.e. the application program for a service type, when a process because running quickly when beating a precipitate retreat out, other processes can also be after
Continuous to be serviced, multi-process has stronger robustness, guarantees the normal operation of application program with this.
In actual operational process, such as a host process can be created for receiving task, then pass through host process
Multiple assisted process (subprocess) are created to complete different task, i.e., for each received task of institute, are all assisted by one
Process completes, i.e., different task creations different assisted process is completed, for example, search file task, written document task,
Picture handles task dispatching.Can not be ensured in actual motion each assisted process can stable operation, due to simultaneously operation it is auxiliary
Help process excessive, the task of some assisted process produces error in data when may go to half, and cause application program to be run quickly and bursts,
The task that some assisted process execute, which may generate deadlock, causes application program stuck, and host process is for auxiliary in the prior art
There is no good Managed Solutions for process.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of multi-process management method, it is main into
Journey is guaranteed under more assisted process operating conditions by naming pipeline to control the execution status of task of assisted process using journey
The normal operation of sequence.
To achieve the above objectives, the technical solution adopted by the present invention is that, comprising:
Call the CreateNamedPipe function creation in Windows API calls is multiple to be used for host process and auxiliary
The name pipeline of interprocess communication, and the corresponding assisted process of each name pipeline；
Host process calls function WriteFile that task data is written in name pipeline, and the task data of write-in is sent out
To corresponding assisted process；
Assisted process calls function ReadFile to read task data from name pipeline；
Assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process tune
Exiting for itself is completed with function AtExit, and is sent by name pipeline for indicating that task has been finished and assisted process
The data having dropped out are to host process.
Based on the above technical solution,
Each assisted process is corresponding to execute a task；
The name pipeline also needs incoming name parameter when creating；
Name parameter in incoming name pipeline corresponds to the title of the pending task of assisted process for the name pipeline.
Based on the above technical solution, after the completion of name pipeline creation, for host process:
Function ConnectNamedPipe is called to wait the corresponding assisted process connection of the name pipeline；
The connection with host process is completed by name pipeline to assisted process, assisted process is received and is sent by name pipeline
For indicating the data of successful connection to host process；
The data for calling function ReadFile to send assisted process are read out；
It calls function WriteFile that task data is written in name pipeline, and the task data of write-in is sent to correspondence
Assisted process.
Based on the above technical solution, after the completion of name pipeline creation, for assisted process:
It calls function CreateFile connection to name pipeline, completes the connection between host process；
Send for indicating the data of successful connection to host process, then call function WaitNamedPipe wait it is main into
Journey it is corresponding；
Function ReadFile is called to read the task data that host process is written from name pipeline.
Based on the above technical solution, it is preset with task completion time in the host process, when host process is being named
Task data is written in pipeline, and after the task data of write-in is sent to assisted process, if in the task completion time being preset with
It is interior, host process do not receive assisted process transmission for indicating task has been finished and assisted process has dropped out data, then
Host process calling function TerminateProcess terminates the operation of the assisted process.
Based on the above technical solution, this method further include: write the abnormality processing letter for monitoring assisted process
Number, and registration of the abnormality processing function in Windows system is completed, it is abnormal when assisted process, which executes task, occurs abnormal
It handles function and informs that host process, host process call function TerminateProcess to terminate the assisted process by sending log
Operation.
Based on the above technical solution, after assisted process is terminated operation, host process re-creates assisted process
To re-execute executing before being terminated assisted process for task.
The present invention also provides a kind of storage mediums, are stored thereon with computer program, the computer program is by processor
It is performed the steps of when execution
Call the CreateNamedPipe function creation in Windows API calls is multiple to be used for host process and auxiliary
The name pipeline of interprocess communication, and the corresponding assisted process of each name pipeline；
Host process calls function WriteFile that task data is written in name pipeline, and the task data of write-in is sent out
To corresponding assisted process；
Assisted process calls function ReadFile to read task data from name pipeline；
Assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process tune
Exiting for itself is completed with function AtExit, and is sent by name pipeline for indicating that task has been finished and assisted process
The data having dropped out are to host process.
The present invention also provides a kind of electronic equipment comprising:
Creating unit is used to call the CreateNamedPipe function creation in Windows API calls multiple
Name pipeline for being communicated between host process and assisted process, and the corresponding assisted process of each name pipeline；
Writing unit is used to that host process to be driven to call function WriteFile that task data is written in name pipeline, and
The task data of write-in is sent to corresponding assisted process；
Reading unit is used to drive assisted process that function ReadFile is called to read task data from name pipeline；
Execution and notification unit, the execution for being used to that assisted process task based access control data to be driven to carry out corresponding task, and to
After task execution, assisted process calls function AtExit to complete exiting for itself, and is sent by name pipeline and be used for table
Show task has been finished and assisted process has dropped out data to host process.
The present invention also provides a kind of multi-process management systems, comprising:
Creation module is used to call the CreateNamedPipe function creation in Windows API calls multiple
Name pipeline for being communicated between host process and assisted process, and the corresponding assisted process of each name pipeline；
Writing module is used to that host process to be driven to call function WriteFile that task data is written in name pipeline, and
The task data of write-in is sent to corresponding assisted process；
Read module is used to drive assisted process that function ReadFile is called to read task data from name pipeline；
Execution and notification module, the execution for being used to that assisted process task based access control data to be driven to carry out corresponding task, and to
After task execution, assisted process calls function AtExit to complete exiting for itself, and is sent by name pipeline and be used for table
Show task has been finished and assisted process has dropped out data to host process.
Compared with the prior art, the advantages of the present invention are as follows: it is used to communicate between host process and assisted process by creation
Pipeline is named, then task data is written in the name pipeline of creation in host process, and task data is auxiliary by naming pipeline to be sent to
Help process, assisted process task based access control data carry out the execution of corresponding task, and to task execution after, assisted process is called
Function AtExit completes exiting for itself, and by name pipeline send for indicate task be finished and assisted process
The data exited are communicated between assisted process and host process by the name pipeline created to host process, while host process is logical
It crosses name pipeline to grasp the execution status of task of assisted process, guarantees application program under more assisted process operating conditions
It operates normally.
Detailed description of the invention
Fig. 1 is a kind of flow chart of multi-process management method in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of a kind of electronic equipment in the embodiment of the present invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.Those skilled in the art Ying Ming
White, the embodiment of the present invention can provide as method, system or computer program product.Therefore, complete hardware can be used in the present invention
The form of embodiment, complete software embodiment or embodiment combining software and hardware aspects.Moreover, the present invention can be used
One or more wherein includes that (including but not limited to disk is deposited for the computer-usable storage medium of computer usable program code
Reservoir, CD-ROM, optical memory etc.) on the form of computer program product implemented.
Shown in Figure 1, the embodiment of the present invention provides a kind of multi-process management method, for running in Windows system
The host process of application program assisted process (subprocess) is managed, certainly, multi-process manager in the embodiment of the present invention
Method thinking equally can also apply on linux system.The multi-process management method of the embodiment of the present invention specifically includes following step
It is rapid:
S1: it calls in Windows system API (Application Programming Interface) function
The multiple name pipelines for being communicated between host process and assisted process of CreateNamedPipe function creation, and each name is managed
Road corresponds to an assisted process.In Windows system, CreateNamedPipe function is used to be named the creation of pipeline.
Pipeline is named, name pipeline is called, it can be between the different processes of same computer or in the different meters across a network
Between the different processes of calculation machine, supports reliable, one-way or bi-directional data communication, belong to a kind of inter-process communication mechanisms, this
Inventive embodiments complete the communication in application program between host process and assisted process by name pipeline, and name pipeline can shield
The network protocol details of bottom is covered, therefore more convenient to use and quick.
Application program needs to be implemented multiple tasks in the process of running, such as search file task, written document task, picture
Task dispatching is handled, each task is accordingly executed by an assisted process, i.e., each assisted process is corresponding to execute a task,
All execution that may have multiple assisted process simultaneously in the task of progress, therefore multiple name pipelines are created, each assisted process makes
It is communicated between a name pipeline and host process.
Incoming name parameter is also needed when name pipeline creation, i.e., is passed to name parameter into function CreateNamedPipe,
Name parameter in incoming name pipeline corresponds to the title of the pending task of assisted process for the name pipeline, due to each
The title of business is different, and the title that can guarantee to create each name pipeline in this way is uniquely, will not to manage with other names
Road is born the same name, be further ensured that name pipeline, between task and assisted process corresponding relationship uniqueness.
S2: host process calls function WriteFile to be written task data in name pipeline, and by the task data of write-in
Be sent to corresponding assisted process, due to name pipeline and assisted process be it is corresponding, be between task and assisted process it is corresponding,
Therefore the task data that host process is written in name pipeline can be by naming pipeline to be sent to corresponding assisted process, number of tasks
According to the task pending for assisted process, such as write-in file, reading file.Function WriteFile is normal in Windows system
The write-in data function seen, is usually used in writing data into file, which is also commonly used for communication equipment, pipeline, socket
And the processing of mailslot.
For host process, after the completion of name pipeline creation, the operation specifically executed is as follows:
A: function ConnectNamedPipe is called to wait the corresponding assisted process connection of the name pipeline, when name pipeline
After the completion of creation, assisted process can be connect by the name pipeline of creation with host process, and before proceeding, host process calls function
The connection of ConnectNamedPipe waiting assisted process.Function ConnectNamedPipe is in Windows system for referring to
Process waits after showing server, until client computer or other processes are the same as name pipeline connection.
B: completing the connection with host process by name pipeline to assisted process, receives assisted process and passes through name pipeline hair
It send for indicating the data of successful connection to host process.I.e. after assisted process connection name pipeline, assisted process can send data
Inform host process.
C: the data for calling function ReadFile to send assisted process are read out.Host process calls function ReadFile
The data sent to assisted process are read out, and learn that assisted process has connected name pipeline success.Function ReadFile is used for
It indicates by reading data into a file, that is, indicates the reading for carrying out data.
D: calling function WriteFile to be written task data in name pipeline, and the task data of write-in is sent to pair
The assisted process answered.The task of the execution as needed for different assisted process is different, therefore for different assisted process, it is main
The task data that process is written is different.Function WriteFile is the common write-in data function in Windows system,
It writes data into a file.
For assisted process, after the completion of name pipeline creation, the operation specifically executed is as follows:
A: calling function CreateFile connection to name pipeline, completes the connection between host process.When name pipeline creation
After the completion, assisted process calls function CreateFile to complete assisted process and names the connection of pipeline, i.e. completion assisted process
Connection between host process.Function CreateFile be Windows system in a multi-functional function, can be used for open or
Object is created, and return to addressable handle.
B: completing the connection with host process by name pipeline to assisted process, receives assisted process and passes through name pipeline hair
It send for indicating the data of successful connection to host process.Inform that connection has been completed in host process, assisted process.Host process obtains
After notice, task is issued to assisted process.
C: the data for calling function ReadFile to send assisted process are read out.
S3: assisted process calls function ReadFile to read task data from name pipeline.Host process obtain assisting into
After the notice that journey has connected, task data can be issued to assisted process by name pipeline, assisted process calls function at this time
ReadFile is read out the data that assisted process issues, and knows task definition.
S4: assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process
Call function AtExit to complete exiting for itself, and by name pipeline send for indicate task be finished and assist into
The data that journey has dropped out are to host process.Function AtExit is the api function of Windows system, for terminating function or process
Operation, the prototype of the function are int atexit (void (* func) (void)), and wherein parameter func indicates that process or program are moved back
The function completed is needed when out, and the execution of completion task is referred in the embodiment of the present invention.
To the login mechanism that each assisted process process of having write exits, when assisted process task execution finishes, then adjust
Assisted process is completed with function AtExit to exit, and send data inform host process task be finished and assisted process
It exits.
By writing the function of an interprocess communication come the transmission for assisted process to the notification data of host process, accuse
Know that host process task has been finished and assisted process has dropped out.Many methods of system offer can be used in communication between process
It carries out, such as the shared drive between network socket, process.The name pipeline that creates before use of the embodiment of the present invention carries out
Communication between assisted process and host process, assisted process informs that host process task execution finishes and assisted process has been moved back at this time
Out, code is executed accordingly are as follows:
WriteFile("process exit")；
}
Atexit(IpcExit)；
Registration procedure of function Atexit before calling exits function IpcExit, and it is logical that process exits function IpcExit
It crosses name pipeline and informs host process.
In a kind of real-time mode, task completion time is preset in host process, when host process is written in name pipeline
Task data, and after the task data of write-in is sent to assisted process, if host process is not in the task completion time being preset with
Receive assisted process transmission for indicating task has been finished and assisted process has dropped out data, then host process calls letter
Number TerminateProcess terminates the operation of the assisted process.Function TerminateProcess is in C++ programming language
A kind of function, for terminating specified process or all threads.
The approximate time that task completion can be estimated out in advance for each task, when estimating out for task is completed
Between be to be preset in task completion time in host process, when task data is written in name pipeline in host process, host process at this time
The establishment moment of meeting store tasks, the data that then host process periodically sends received assisted process facilitate, if
In the task completion time being preset with, host process do not receive assisted process transmission for indicating that task has been finished and has assisted
The time that the data that process has dropped out, i.e. assisted process execute task has been more than preset task completion time, illustrates the auxiliary
Process may have occurred stuck situation, fail the execution for being normally carried out task, so when call function
TerminateProcess terminates the operation of the assisted process, prevents a large amount of stuck sequence lasts from existing and causes system resource
Waste, guarantees the normal operation of application program.
The prototype of function TerminateProcess is as follows:
BOOL TerminateProcess(
HANDLE hProcess；// by the handle for the process that is moved to end
UINT uExitCode；// specified process exits code
)；
Wherein, process handle handle is then the handle that host process is saved when creating assisted process.It is assisted when monitoring
When the stuck situation of process, function TerminateProcess is called to close the process, effectively prevent a large amount of stuck processes consumptions
System resource to the greatest extent.
In one embodiment, the abnormality processing function for monitoring assisted process is write, and completes abnormality processing letter
Registration of the number in Windows system, when assisted process, which executes task, occurs abnormal, abnormality processing function is by sending log
Inform host process, host process calling function TerminateProcess terminates the operation of the assisted process.It is abnormal for except it is 0 abnormal,
Invalid handle is abnormal, internal storage access is abnormal etc..For assisted process, different tasks is executed, is difficult to ensure its execution
All tasks can normally execute, so for the design of application program, be then required to compatible assisted process
The situation for mistake occur can capture this mistake when an error occurs, to timely notify the host process task execution
Failure.
An exception handling logic is write first, is implemented as follows:
LONG__stdcall
MyUnhandledExceptionFilter(PEXCEPTION_POINTERS
pExceptionInfo)
An abnormality processing function is write, which is MyUnhandledExceptionFilter,
Middle parameter pExceptionInfo is such as any exception at this time for transmitting the relevant information of some exceptions.In abnormality processing letter
In number, needs the name pipeline created before calling to notify host process, host process is made to know that exception occurs in assisted process.
After writing abnormality processing function, the function of registration abnormity processing function is then write.Windows system also provides
Corresponding api function completes abnormal registration: registration abnormity processing function first, so that the process when application program executes
When generating abnormal, the exception handling logic write can be just performed.System provides corresponding api function and carrys out registration abnormity processing
Function is implemented as follows:
SetUnhandledExceptionFilter(MyUnhandledExceptionFilter)；
Wherein API calls SetUnhandledExceptionFilter indicates to be used to register an abnormality processing letter
Number, parameter MyUnhandledExceptionFilter is the above-mentioned abnormality processing function write.
After the completion of abnormality processing function registration, i.e., exception handling logic is had registered in Windows system, when using journey
Sequence produces exception when executing, then system can go to execute the abnormality processing function registered
MyUnhandledExceptionFilter, and handle in the function abnormal.
After assisted process is terminated operation, host process re-creates assisted process and is terminated assisted process to re-execute
Executing before for task guarantees continuing to execute for task, the normal operation of application program.
The multi-process management method of the embodiment of the present invention, by creating the name for communicating between host process and assisted process
Pipeline, then host process creation name pipeline be written task data, task data by name pipeline be sent to assist into
Journey, assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process call function
AtExit completes exiting for itself, and is sent by name pipeline for indicating that task has been finished and assisted process has dropped out
Data communicated by the name pipeline created between assisted process and host process to host process, while host process passes through life
Name pipeline grasps the execution status of task of assisted process, guarantees the normal of application program under more assisted process operating conditions
Operation.
The embodiment of the present invention also provides a kind of storage medium, is stored thereon with computer program, the computer program quilt
Processor performs the steps of when executing
Call the CreateNamedPipe function creation in Windows API calls is multiple to be used for host process and auxiliary
The name pipeline of interprocess communication, and the corresponding assisted process of each name pipeline；
Host process calls function WriteFile that task data is written in name pipeline, and the task data of write-in is sent out
To corresponding assisted process；
Assisted process calls function ReadFile to read task data from name pipeline；
Assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process tune
Exiting for itself is completed with function AtExit, and is sent by name pipeline for indicating that task has been finished and assisted process
The data having dropped out are to host process.
Shown in Figure 2, the embodiment of the present invention also provides a kind of electronic equipment, including creating unit 501, writing unit
502, reading unit 503 and execution and notification unit 504.
Creating unit 501 is for calling the CreateNamedPipe function creation in Windows API calls multiple
Name pipeline for being communicated between host process and assisted process, and the corresponding assisted process of each name pipeline；Writing unit
502 for driving host process that function WriteFile is called to be written task data in name pipeline, and by the task data of write-in
It is sent to corresponding assisted process；Reading unit 503 is for driving assisted process that function ReadFile is called to read from name pipeline
Take task data；It executes and notification unit 504 is for driving assisted process task based access control data to carry out the execution of corresponding task, and
After task execution, assisted process calls function AtExit to complete exiting for itself, and is used for by name pipeline transmission
The data that expression task has been finished and assisted process has dropped out are to host process.
The embodiment of the present invention also provides multi-process management system, including creation module, writing module, read module and execution
And notification module.
Creation module is for calling the CreateNamedPipe function creation in Windows API calls is multiple to be used for
The name pipeline communicated between host process and assisted process, and the corresponding assisted process of each name pipeline；
Writing module is used to that host process to be driven to call function WriteFile that task data is written in name pipeline, and will
The task data of write-in is sent to corresponding assisted process；
Read module is for driving assisted process that function ReadFile is called to read task data from name pipeline；
It executes and notification module is for driving assisted process task based access control data to carry out the execution of corresponding task, and to task
After being finished, assisted process calls function AtExit to complete exiting for itself, and is sent by name pipeline for indicating to appoint
Business has been finished and data that assisted process has dropped out are to host process.
The multi-process management system of the embodiment of the present invention, by creating the name for communicating between host process and assisted process
Pipeline, then host process creation name pipeline be written task data, task data by name pipeline be sent to assist into
Journey, assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process call function
AtExit completes exiting for itself, and is sent by name pipeline for indicating that task has been finished and assisted process has dropped out
Data communicated by the name pipeline created between assisted process and host process to host process, while host process passes through life
Name pipeline grasps the execution status of task of assisted process, guarantees the normal of application program under more assisted process operating conditions
Operation.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of multi-process management method, which comprises the following steps:
Call the CreateNamedPipe function creation in Windows API calls is multiple to be used for host process and assisted process
Between the name pipeline that communicates, and the corresponding assisted process of each name pipeline；
Host process calls function WriteFile to be written task data in name pipeline, and the task data of write-in is sent to pair
The assisted process answered；
Assisted process calls function ReadFile to read task data from name pipeline；
Assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process call letter
Number AtExit completes exiting for itself, and is sent by name pipeline for indicating that task has been finished and assisted process has been moved back
Data out are to host process.
2. a kind of multi-process management method as described in claim 1, it is characterised in that:
Each assisted process is corresponding to execute a task；
The name pipeline also needs incoming name parameter when creating；
Name parameter in incoming name pipeline corresponds to the title of the pending task of assisted process for the name pipeline.
3. a kind of multi-process management method as described in claim 1, which is characterized in that right after the completion of name pipeline creation
In host process:
Function ConnectNamedPipe is called to wait the corresponding assisted process connection of the name pipeline；
The connection with host process is completed by name pipeline to assisted process, assisted process is received and is used for by name pipeline transmission
Indicate the data of successful connection to host process；
The data for calling function ReadFile to send assisted process are read out；
It calls function WriteFile that task data is written in name pipeline, and the task data of write-in is sent to corresponding auxiliary
Help process.
4. a kind of multi-process management method as claimed in claim 3, which is characterized in that right after the completion of name pipeline creation
In assisted process:
It calls function CreateFile connection to name pipeline, completes the connection between host process；
The data for indicating successful connection are sent to host process, then function WaitNamedPipe are called to wait host process
Accordingly；
Function ReadFile is called to read the task data that host process is written from name pipeline.
5. a kind of multi-process management method as described in claim 1, it is characterised in that: it is complete to be preset with task in the host process
At the time, when task data is written in name pipeline in host process, and after the task data of write-in is sent to assisted process, if
In the task completion time being preset with, host process do not receive assisted process transmission for indicating that task has been finished and has assisted
The data that process has dropped out, then host process calling function TerminateProcess terminates the operation of the assisted process.
6. a kind of multi-process management method as described in claim 1, which is characterized in that this method further include: write for supervising
The abnormality processing function of assisted process is controlled, and completes registration of the abnormality processing function in Windows system, when assisted process is held
When row task occurs abnormal, abnormality processing function informs that host process, host process call function by sending log
TerminateProcess terminates the operation of the assisted process.
7. such as a kind of multi-process management method described in claim 5 or 6, it is characterised in that: when assisted process is terminated operation
Afterwards, host process re-creates assisted process to re-execute executing before being terminated assisted process for task.
8. a kind of storage medium, is stored thereon with computer program, which is characterized in that the computer program is executed by processor
When perform the steps of
Call the CreateNamedPipe function creation in Windows API calls is multiple to be used for host process and assisted process
Between the name pipeline that communicates, and the corresponding assisted process of each name pipeline；
Host process calls function WriteFile to be written task data in name pipeline, and the task data of write-in is sent to pair
The assisted process answered；
Assisted process calls function ReadFile to read task data from name pipeline；
Assisted process task based access control data carry out corresponding task execution, and to task execution after, assisted process call letter
Number AtExit completes exiting for itself, and is sent by name pipeline for indicating that task has been finished and assisted process has been moved back
Data out are to host process.
9. a kind of electronic equipment, characterized in that it comprises:
Creating unit is used to call the CreateNamedPipe function creation in Windows API calls is multiple to be used for
The name pipeline communicated between host process and assisted process, and the corresponding assisted process of each name pipeline；
Writing unit is used to that host process to be driven to call function WriteFile that task data is written in name pipeline, and will write
The task data entered is sent to corresponding assisted process；
Reading unit is used to drive assisted process that function ReadFile is called to read task data from name pipeline；
Execution and notification unit, the execution for being used to that assisted process task based access control data to be driven to carry out corresponding task, and to task
After being finished, assisted process calls function AtExit to complete exiting for itself, and is sent by name pipeline for indicating to appoint
Business has been finished and data that assisted process has dropped out are to host process.
10. a kind of multi-process management system characterized by comprising
Creation module is used to call the CreateNamedPipe function creation in Windows API calls is multiple to be used for
The name pipeline communicated between host process and assisted process, and the corresponding assisted process of each name pipeline；
Writing module is used to that host process to be driven to call function WriteFile that task data is written in name pipeline, and will write
The task data entered is sent to corresponding assisted process；
Read module is used to drive assisted process that function ReadFile is called to read task data from name pipeline；
Execution and notification module, the execution for being used to that assisted process task based access control data to be driven to carry out corresponding task, and to task
After being finished, assisted process calls function AtExit to complete exiting for itself, and is sent by name pipeline for indicating to appoint
Business has been finished and data that assisted process has dropped out are to host process.
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| CN111147126A (en) * | 2019-12-26 | 2020-05-12 | 中国人民解放军空军勤务学院 | Beidou satellite short message communication data unpacking transmission method |
| CN113326139A (en) * | 2021-06-28 | 2021-08-31 | 上海商汤科技开发有限公司 | Task processing method, device, equipment and storage medium |
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| CN102801961A (en) * | 2012-08-21 | 2012-11-28 | 北京捷成世纪科技股份有限公司 | Multiprocess-based audio/video data processing method and system |
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