CN114461418A - Inter-process communication method and device and electronic equipment - Google Patents
Inter-process communication method and device and electronic equipment Download PDFInfo
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- CN114461418A CN114461418A CN202210005779.0A CN202210005779A CN114461418A CN 114461418 A CN114461418 A CN 114461418A CN 202210005779 A CN202210005779 A CN 202210005779A CN 114461418 A CN114461418 A CN 114461418A
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- 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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- 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
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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Abstract
The invention provides an interprocess communication method, an interprocess communication device and electronic equipment. The interprocess communication method comprises the following steps: acquiring a unique identifier of a message to be communicated; obtaining a message queue mark value according to the unique identifier, and searching whether a target message queue marked by the message queue mark value exists or not; if the tag value does not exist, a target message queue is created, so that other processes can establish communication with the target message queue based on the tag value of the message queue; if so, communication is established with the target message queue based on the message queue tag value. The invention can realize the sharing and mutual exclusion of the message channel among different processes when the communication among the processes is realized.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a method and an apparatus for interprocess communication, and an electronic device.
Background
Interprocess communication is a communication passing technique that is mainly applied to message passing between different processes in a computer system. At present, mechanisms such as pipeline communication, Socket, shared memory and message queue are mainly provided.
The message queue has the advantages of large data transmission quantity, unlimited data format and buffer area size and the like, and can be widely applied. But the message channels between different processes constructed based on the message queues have the problems of difficult sharing and incapability of mutual exclusion. For example, in the Linux operating system, the Linux message queue is identified by a key value, that is, the Linux message queue is created or identified by the key value. At present, key values of Linux message queues mostly adopt a fixed digital form, and on one hand, the key values in the fixed digital form cause that different processes are difficult to obtain target key values, so that message channels among different processes are difficult to share; on the other hand, the key value in the form of fixed number may be repeated, so that the message channels between different processes cannot be mutually exclusive.
Disclosure of Invention
The invention provides an interprocess communication method, an interprocess communication device and electronic equipment, which can realize sharing and mutual exclusion of a message channel among different processes during interprocess communication.
In a first aspect, the present invention provides an inter-process communication method, including: acquiring a unique identifier of a message to be communicated; obtaining a message queue mark value according to the unique identifier, and searching whether a target message queue marked by the message queue mark value exists or not; if the tag value does not exist, a target message queue is created, so that other processes can establish communication with the target message queue based on the tag value of the message queue; if so, establishing communication with the target message queue based on the message queue tag value.
Compared with a key value identification message queue in a fixed digital form, the inter-process communication method provided by the invention has the advantages that the message queue mark value is determined based on the unique identification of the message to be communicated, the target message queue is marked based on the message queue mark value, and the unique identification of the message to be communicated has the advantages of complexity, variability and easiness in identification.
In one possible implementation manner, the obtaining of the unique identifier of the message to be communicated includes: generating a Linux file based on the message to be communicated; and obtaining the unique identifier according to the unique ID of the Linux file.
In one possible implementation, creating the target message queue includes: acquiring the file type of a Linux file; obtaining a message type tag value based on the file type; and generating a target message based on the message type mark value, and adding the target message into the target message queue.
In one possible implementation, establishing communication with the target message queue based on the message queue flag value includes: acquiring a message queue mark value; acquiring a message type mark value; and searching a target message queue corresponding to the message queue mark value, searching a target message corresponding to the message type mark value from the target message queue, and acquiring the target message.
In a second aspect, an embodiment of the present invention provides an inter-process communication apparatus, where the inter-process communication apparatus includes a communication module and a processing module; the communication module is used for acquiring the unique identifier of the message to be communicated; the processing module is used for obtaining a message queue mark value according to the unique identifier and searching whether a target message queue marked by the message queue mark value exists or not; if the tag value does not exist, a target message queue is created, so that other processes can establish communication with the target message queue based on the tag value of the message queue; if so, establishing communication with the target message queue based on the message queue tag value.
In a possible implementation manner, the obtaining module is specifically configured to obtain a name of a message to be communicated; the processing module is specifically used for generating a Linux file based on the name of the message to be communicated; and obtaining the unique identifier according to the unique ID of the Linux file.
In a possible implementation manner, the processing module is specifically configured to obtain a file type of the Linux file; obtaining a message type tag value based on the file type; and generating a target message based on the message type mark value, and adding the target message into the target message queue.
In a possible implementation manner, the processing module is specifically configured to obtain a message queue flag value; acquiring a message type mark value; and searching a target message queue corresponding to the message queue mark value, searching a target message corresponding to the message type mark value from the target message queue, and acquiring the target message.
In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor, when executing the computer program, implements the steps of the method according to the first aspect or any possible implementation manner of the first aspect.
In a fourth aspect, the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the method according to the first aspect or any one of the possible implementation manners of the first aspect.
For technical effects brought by any design of the second aspect to the fourth aspect, reference may be made to the first aspect or technical effects brought by corresponding designs of the first aspect, which are not described herein again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart illustrating an inter-process communication method according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating another inter-process communication method according to an embodiment of the present invention;
FIG. 3 is a block diagram of an interprocess communication device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In the description of the present invention, "/" means "or" unless otherwise specified, for example, a/B may mean a or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" or "a plurality" means two or more. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.
In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.
Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules, but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is made by way of specific embodiments with reference to the accompanying drawings.
As described in the background, there are technical problems of sharing and mutual exclusion difficulties in message channels between different processes.
To solve the above technical problem, as shown in fig. 1, an embodiment of the present invention provides an inter-process communication method, where an execution subject of the inter-process communication method is an inter-process communication apparatus, and the inter-process communication method includes steps S101 to S104.
S101, the inter-process communication device obtains the unique identification of the message to be communicated.
In some embodiments, the unique identifier of the message to be communicated is used for establishing a message channel between processes, or the unique identifier is also used for establishing a message queue, wherein the message queue is the message channel between processes.
As a possible implementation manner, the interprocess communication device may generate a Linux file based on the message to be communicated; and obtaining the unique identifier according to the unique ID of the Linux file.
In some embodiments, the interprocess communication device may generate a Linux file based on the message name of the message to be communicated.
In other embodiments, the interprocess communication device may generate a Linux file based on the data content of the message to be communicated.
In other embodiments, the interprocess communication device may generate a Linux file based on the user's operational intent on the message to be communicated.
It should be noted that the Linux file is a standard file in the Linux system. The Linux file has a standard format, a generation mode and a processing mode. The Linux file has a unique ID for uniquely identifying the Linux file. The unique ID of the Linux file is associated with its file name. After the inter-process communication device generates the Linux file based on the message to be communicated, the Linux file also has the unique ID.
In some embodiments, the inter-process communication device may directly determine the unique ID of the Linux file as the unique identifier. Because the unique ID of the Linux file is in the standard format of the Linux system, a user can easily identify the unique ID based on the naming rule of the Linux system, so that sharing among different processes is simpler and more convenient.
In other embodiments, the interprocess communication device may obtain the unique identifier based on performing an encryption operation on the unique ID of the Linux file. For example, the interprocess communication apparatus may delete or add characters to the unique ID. Therefore, the probability of the unique identifier repeating among the processes is lower, and the mutual exclusion effect is stronger when the unique identifier communicates among different processes.
S102, the inter-process communication device obtains the message queue mark value according to the unique identifier, and searches whether a target message queue marked by the message queue mark value exists or not. If not, executing S103; if yes, go to step S104.
As a possible implementation, the interprocess communication means may directly determine the unique identification as a message queue flag value.
As a possible implementation manner, the inter-process communication device may send indication information for indicating to search for the target message queue to a kernel of the Linux system, so as to search for the target message queue. Wherein, the indication information may carry the message queue flag value. Therefore, after the kernel of the Linux system receives the indication information, whether a target message queue marked by the message queue marking value exists is searched, and a query result is replied to the interprocess communication device.
S103, the inter-process communication device creates a target message queue so that other processes can establish communication with the target message queue based on the message queue mark value.
It will be appreciated that the inter-process communication device determining that there is no target message queue marked with the message queue marker value indicates that the inter-process communication device needs to create a target message queue marked with the message queue marker value in order for other processes to establish communication with the target message queue based on the message queue marker value.
As one possible implementation, the target message queue may be created through steps A1-A3.
A1, the inter-process communication device obtains the file type of the Linux file.
A2, the inter-process communication device obtains the message type flag value based on the file type.
A3, the inter-process communication device generates a target message based on the message type mark value, and adds the target message into the target message queue.
S104, the interprocess communication device establishes communication with the target message queue based on the message queue mark value.
Compared with a key value identification message queue in a fixed digital form, the inter-process communication method provided by the invention has the advantages that the message queue mark value is determined based on the unique identification of the message to be communicated, the target message queue is marked based on the message queue mark value, and the unique identification of the message to be communicated has the advantages of complexity, variability and easiness in identification.
Alternatively, as shown in fig. 2, establishing communication with the target message queue based on the message queue flag value may be implemented through steps S201-S203.
S201, obtaining a message queue mark value.
S202, acquiring a message type mark value.
S203, searching a target message queue corresponding to the message queue mark value, searching a target message corresponding to the message type mark value from the target message queue, and acquiring the target message.
Therefore, different processes can communicate through the target message, the target message is generated through the uniquely determined message queue marking value and the message type marking value, the message queue marking value and the message type marking value are determined based on the unique identifier of the message to be communicated, and the unique identifier has the advantages of complexity, changeability and easiness in identification, so that the sharing and mutual exclusion of message channels among different processes can be realized during the inter-process communication through the target message.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The following are embodiments of the apparatus of the invention, reference being made to the corresponding method embodiments described above for details which are not described in detail therein.
Fig. 3 is a schematic structural diagram of an inter-process communication apparatus according to an embodiment of the present invention, where the inter-process communication apparatus 300 includes a communication module 301 and a processing module 302;
the communication module 301 is configured to obtain a unique identifier of a message to be communicated.
The processing module 302 is configured to obtain a message queue flag value according to the unique identifier, and find whether a target message queue marked by the message queue flag value exists; if the tag value does not exist, a target message queue is created, so that other processes can establish communication with the target message queue based on the tag value of the message queue; if so, establishing communication with the target message queue based on the message queue tag value.
In a possible implementation manner, the obtaining module 301 is specifically configured to obtain a name of a message to be communicated; the processing module 302 is specifically configured to generate a Linux file based on a name of the message to be communicated; and obtaining the unique identifier according to the unique ID of the Linux file.
In a possible implementation manner, the processing module 302 is specifically configured to obtain a file type of the Linux file; obtaining a message type tag value based on the file type; and generating a target message based on the message type mark value, and adding the target message into the target message queue.
In a possible implementation manner, the processing module 302 is specifically configured to obtain a message queue flag value; acquiring a message type mark value; and searching a target message queue corresponding to the message queue mark value, searching a target message corresponding to the message type mark value from the target message queue, and acquiring the target message.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 4, the electronic apparatus 400 of this embodiment includes: a processor 401, a memory 402 and a computer program 403 stored in said memory 402 and executable on said processor 401. The processor 401, when executing the computer program 403, implements the steps in the above-described method embodiments, such as the steps 101 to 104 shown in fig. 1. Alternatively, the processor 401, when executing the computer program 403, implements the functions of each module/unit in each device embodiment described above, for example, the functions of the communication module 301 and the processing module 302 shown in fig. 3.
Illustratively, the computer program 403 may be partitioned into one or more modules/units that are stored in the memory 402 and executed by the processor 401 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 403 in the electronic device 400. For example, the computer program 403 may be divided into the communication module 301 and the processing module 302 shown in fig. 3. The Processor 401 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 402 may be an internal storage unit of the electronic device 400, such as a hard disk or a memory of the electronic device 400. The memory 402 may also be an external storage device of the electronic device 400, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the electronic device 400. Further, the memory 402 may also include both internal storage units and external storage devices of the electronic device 400. The memory 402 is used for storing the computer programs and other programs and data required by the terminal. The memory 402 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other ways. For example, the above-described apparatus/terminal embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. An interprocess communication method, comprising:
acquiring a unique identifier of a message to be communicated;
obtaining a message queue mark value according to the unique identifier, and searching whether a target message queue marked by the message queue mark value exists or not;
if not, creating the target message queue so that other processes can establish communication with the target message queue based on the message queue mark value;
if so, establishing communication with the target message queue based on the message queue tag value.
2. The inter-process communication method according to claim 1, wherein the obtaining the unique identifier of the message to be communicated comprises:
generating a Linux file based on the message to be communicated;
and obtaining the unique identifier according to the unique ID of the Linux file.
3. The inter-process communication method of claim 2, wherein the creating the target message queue comprises:
acquiring the file type of the Linux file;
obtaining a message type flag value based on the file type;
and generating a target message based on the message type mark value, and adding the target message into the target message queue.
4. The inter-process communication method according to any one of claims 1 to 3, wherein the establishing communication with the target message queue based on the message queue flag value comprises:
acquiring a message queue mark value;
acquiring a message type mark value;
and searching a target message queue corresponding to the message queue mark value, searching a target message corresponding to the message type mark value from the target message queue, and acquiring the target message.
5. An interprocess communication apparatus, characterized in that, the interprocess communication apparatus comprises a communication module and a processing module;
the communication module is used for acquiring the unique identifier of the message to be communicated;
the processing module is used for obtaining a message queue mark value according to the unique identifier and searching whether a target message queue marked by the message queue mark value exists or not; if not, creating the target message queue so that other processes can establish communication with the target message queue based on the message queue mark value; if so, establishing communication with the target message queue based on the message queue tag value.
6. The interprocess communication apparatus according to claim 5,
the obtaining module is specifically configured to obtain a name of the message to be communicated;
the processing module is specifically used for generating a Linux file based on the name of the message to be communicated; and obtaining the unique identifier according to the unique ID of the Linux file.
7. The interprocess communication apparatus according to claim 6,
the processing module is specifically used for acquiring the file type of the Linux file; obtaining a message type flag value based on the file type; and generating a target message based on the message type mark value, and adding the target message into the target message queue.
8. The inter-process communication apparatus according to any one of claims 5 to 7,
the processing module is specifically used for acquiring a message queue mark value; acquiring a message type mark value; and searching a target message queue corresponding to the message queue mark value, searching a target message corresponding to the message type mark value from the target message queue, and acquiring the target message.
9. An electronic device, characterized in that the electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of the preceding claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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| CN116860488A (en) * | 2023-09-04 | 2023-10-10 | 腾讯科技（深圳）有限公司 | Process communication method and related device |
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| CN116860488A (en) * | 2023-09-04 | 2023-10-10 | 腾讯科技（深圳）有限公司 | Process communication method and related device |
| CN116860488B (en) * | 2023-09-04 | 2024-01-30 | 腾讯科技（深圳）有限公司 | Process communication method and related device |
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