CN103995751A - Cross-platform communication system and method - Google Patents
Cross-platform communication system and method Download PDFInfo
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- CN103995751A CN103995751A CN201410238806.4A CN201410238806A CN103995751A CN 103995751 A CN103995751 A CN 103995751A CN 201410238806 A CN201410238806 A CN 201410238806A CN 103995751 A CN103995751 A CN 103995751A
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- 238000000034 method Methods 0.000 title claims abstract description 273
- 230000006854 communication Effects 0.000 title claims abstract description 94
- 238000004891 communication Methods 0.000 title claims abstract description 44
- 230000008569 process Effects 0.000 claims abstract description 254
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 1
Abstract
The invention provides a cross-platform communication system and method. A forwarding process is set up in the management process of a second process platform and used for receiving information sent by a communication process and analyzing the information type when the connecting request of the communication process of a first process platform is monitored, and a corresponding managed process is discovered according to the information type and serves as a target process to receive the information; communication between two cross-platform processes is achieved by setting up the intermediate forwarding process, and the universality is high. The cross-platform communication system and method can be used for process communication of a communication process, a management process and a managed process, any other processes do not need to be set up, the degree of code maintenance is greatly increased, and the method of the forwarding process can protect the cross-platform process structure against changes.
Description
Technical field
The present invention relates to the communication technology, particularly relate to a kind of Overpassing Platform by Using system and method.
Background technology
One, embedded device adopts LINUX as operating system conventionally, and this system provides the communication between each functional module process and between thread, and how under LINUX environment, realizing accurate and efficient process communication mode becomes the emphasis place in research and development.
LINUX has several different methods for interprocess communication, wherein conventional mode is pipeline (pipe), famous pipeline (FIFO), signal (signal), message queue, shared drive, semaphore (semaphore), socket (socket) etc.Overpassing Platform by Using under LINUX environment can adopt following communication mode at present: A process module is called new message queue of msgget function creation, and with msgsnd function, message is added to the tail of the queue of message queue.Call msgrcv function in B process module and receive the message that A process is sent.But exist like this two serious problems:
But this mode exists two problems:
(1) change the process structure of two processes, caused process to be safeguarded very difficult
(2) versatility is not strong.If A process want with Q management in other processes D process intercom mutually, must also to from message queue, read out at D process module place the message of A process with msgrcv function.
As can be seen here, employing said method has not only destroyed the process framework of two different platforms, and workload repetition, and code maintenance inconvenience, can not reach ideal effect.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of Overpassing Platform by Using system and method, solves the problem of Overpassing Platform by Using in above-mentioned prior art.
For realizing above-mentioned target and other related objectives, the invention provides a kind of cross-platform process communication system, for realizing and the communicating by letter of the first process platform of setting up communication process, described system comprises: the second process platform, set up and have managing process; Described managing process can be connected in multiple processes that are managed communicatedly, and wherein, described managing process has also been set up forwarding process; Described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process.
Preferably, the first data buffer that described communication process presets preset data form is that message queue supplies to write type of message and content, and then sends described message; Described forwarding process presets the message that send to read described communication process the second data buffer of described preset data form.
Preferably, described the first process platform and the second process platform are under Linux environment, and described preset data form is msgbuf data structure.
Preferably, described multiple process that is managed is positioned at different platforms from described managing process.
Preferably, described forwarding process by the default process communication interface function of invocation target process place platform message is sent to described target process.
For realizing above-mentioned target and other related objectives, the invention provides a kind of cross-platform Way of Process Communication, for realizing and the communicating by letter of the first process platform of setting up communication process, described method comprises: set up managing process at the second process platform, wherein, described managing process can be connected in multiple processes that are managed communicatedly; Set up forwarding process at described managing process, described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process.
Preferably, the first data buffer that described communication process presets preset data form is that message queue supplies to write type of message and content, and then sends described message; Described forwarding process presets the message that send to read described communication process the second data buffer of described preset data form.
Preferably, described the first process platform and the second process platform are under Linux environment, and described preset data form is msgbuf data structure.
Preferably, described multiple process that is managed is positioned at different platforms from described managing process.
Preferably, described forwarding process by the default process communication interface function of invocation target process place platform message is sent to described target process.
As mentioned above, the invention provides a kind of cross-platform process communication system and method, by setting up forwarding process under the managing process at the second process platform, described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process; Utilize the mode of forwarding process in the middle of setting up to realize two communications between cross-platform process; highly versatile; can use equally described communication process, managing process and be managed any one process communication of process; and without any need for the foundation of other processes; greatly improve the degree of code maintenance, and forwarded the method for process and can protect the process structure in cross-platform not make and change.
Brief description of the drawings
Fig. 1 is shown as the structural representation of an embodiment of cross-platform process communication system of the present invention.
Fig. 2 is shown as the schematic flow sheet of an embodiment of cross-platform Way of Process Communication of the present invention.
Element numbers explanation
1 first process platform
11 communication processs
2 second process platforms
21 managing processs
22 are managed process
23 forwarding processes
S1～S2 method step
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this instructions.The present invention can also be implemented or be applied by other different embodiment, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
As shown in Figure 1, the invention provides a kind of cross-platform process communication system, for having between the first process platform 1 of communication process 11 and communicate by letter with foundation, described system comprises: the second process platform 2, and set up and have managing process 21; Described managing process 21 can be connected in multiple processes 22 that are managed communicatedly, and wherein, described managing process 21 is also set up and had forwarding process 23; Described forwarding process 23 is in the time listening to the connection request of communication process 11 of described the first process platform 1, receive the message that described communication process 11 sends and resolve described type of message, and finding out the corresponding process that is managed 22 according to described type of message and receive described message as target process.
Specifically, the present invention can be for embedded device, embedded device conventional as LINUX system, and mobile terminal is as being also to have Android (Android) system of being developed based on LINUX system that uses greatly in mobile phone or platform computer; LINUX has several different methods for interprocess communication, wherein conventional mode is pipeline (pipe), famous pipeline (FIFO), signal (signal), message queue, shared drive, semaphore (semaphore), socket (socket) etc.
In one embodiment, described the first process platform 1 and the second process platform 2 can be all the separate process platforms under LINUX environment, so-called process is exactly to represent that certain application program carries out the task of work, and the first data buffer that described communication process 11 presets preset data form as message queue for writing type of message and content, and then send described message; Described forwarding process 23 presets the message that send to read described communication process 11 the second data buffer of described preset data form.
In one embodiment, described preset data form is for example msgbuf data structure under LINUX environment; And described communication process 11 can send message by msgsnd function, its code is realized and is for example:
Accordingly, set up a new forwarding process 23 for 21 times at the managing process that is managed process 22, the application program of forwarding process 23 is by an event of registration, described managing process 21 has distributed a process tag number for forwarding process 23, this process tag number forwards process 23 by monitoring the connection request that whether has communication process 11 as forwarding process 23 with a src_id. of other process communications, and described forwarding process 23 and other differences that are managed process 22 are that it can have the part or all of administration authority of managing process 22; First distribute the second buffer zone of msgbuf data structure here, if monitoring information exists, the message by msgrcv function, the communication process 11 of described the first process platform 1 being sent reads the second buffer zone, that is to say, forwarding process 23 is to read in the message queue of communication process 11 to reading of described message; And if there is no, just repeat to monitor.
Described forwarding process 23 is resolved by the message structure body that communication process 11 is sent, determine that type of message is the content of msgtype, and carry out message filling by this content, src_id is made as the process tag number that management distributes, and is managed the process tag number of the target process in process 22 described in dst_id is made as.The process communication interface function that process 23 calls the process of being managed 22 place platforms and provide is finally provided message is sent to the process of being managed 22.
Therefore,, if described multiple process 22 that is managed is positioned at different platforms from described managing process 21, described forwarding process 23 can be by the default process communication interface function of invocation target process place platform to be sent to message described target process; If certainly identical platform also can, not Figure 1 shows that limit.
As shown in Figure 2, the invention provides a kind of cross-platform Way of Process Communication, for realizing and the communicating by letter of the first process platform of setting up communication process, described method comprises:
Step S1: set up managing process at the second process platform, wherein, described managing process can be connected in multiple processes that are managed communicatedly;
Step S2: set up forwarding process at described managing process, described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process.
Specifically, the present invention can be for embedded device, embedded device conventional as LINUX system, and mobile terminal is as being also to have Android (Android) system of being developed based on LINUX system that uses greatly in mobile phone or platform computer; LINUX has several different methods for interprocess communication, and wherein conventional mode is pipeline (pipe), famous pipeline (FIFO), signal (signal), message queue, shared drive, semaphore (semaphore), socket (socket) etc.
In one embodiment, described the first process platform and the second process platform can be all the separate process platforms under LINUX environment, so-called process is exactly to represent that certain application program carries out the task of work, and the first data buffer that described communication process presets preset data form as message queue for writing type of message and content, and then send described message; Described forwarding process presets the message that send to read described communication process the second data buffer of described preset data form.
In one embodiment, described preset data form is for example msgbuf data structure under LINUX environment; And described communication process can send message by msgsnd function, its code is realized and is for example:
Accordingly, under the managing process that is managed process, set up a new forwarding process.The application program of forwarding process is by an event of registration, described managing process for forward course allocation a process tag number, this process tag number forwards process by monitoring the connection request that whether has communication process as a src_id. of forwarding process and other process communications, and described forwarding process and other differences that are managed process are that it can have the part or all of administration authority of managing process; First distribute the second buffer zone of msgbuf data structure here, if monitoring information exists, the message by msgrcv function, the communication process of described the first process platform being sent reads the second buffer zone, that is to say, forwarding process is to read in the message queue of communication process to reading of message; And if there is no, just repeat to monitor.
Described forwarding process is resolved by the message structure body that communication process is sent, determine that type of message is the content of msgtype, and carry out message filling by this content, src_id is made as the process tag number that management distributes, and is managed the process tag number of the target process in process described in dst_id is made as.Finally forwarding process 23 the process communication interface function that is managed process place platform and provides is provided message is sent to the process of being managed.
Therefore,, if described multiple process that is managed is positioned at different platforms from described managing process, described forwarding process can be by the default process communication interface function of invocation target process place platform to be sent to message described target process; If certainly also can in identical platform.
In sum, the invention provides a kind of cross-platform process communication system and method, by setting up forwarding process under the managing process at the second process platform, described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process; Utilize the mode of forwarding process in the middle of setting up to realize two communications between cross-platform process; highly versatile; can use equally described communication process, managing process and be managed any one process communication of process; and without any need for the foundation of other processes; greatly improve the degree of code maintenance, and forwarded the method for process and can protect the process structure in cross-platform not make and change.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as bend in technical field and have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (10)
1. a cross-platform process communication system, is characterized in that, for realizing and the communicating by letter of the first process platform of setting up communication process, described system comprises:
The second process platform, sets up and has managing process; Described managing process can be connected in multiple processes that are managed communicatedly, and wherein, described managing process has also been set up forwarding process; Described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process.
2. cross-platform process communication system according to claim 1, is characterized in that, the first data buffer that described communication process presets preset data form is that message queue supplies to write type of message and content, and then sends described message; Described forwarding process presets the message that send to read described communication process the second data buffer of described preset data form.
3. cross-platform process communication system according to claim 2, is characterized in that, described the first process platform and the second process platform are under Linux environment, and described preset data form is msgbuf data structure.
4. cross-platform process communication system according to claim 1, is characterized in that, described multiple processes that are managed are positioned at different platforms from described managing process.
5. cross-platform process communication system according to claim 4, is characterized in that, the default process communication interface function of described forwarding process by invocation target process place platform is to be sent to message described target process.
6. a cross-platform Way of Process Communication, is characterized in that, for realizing and the communicating by letter of the first process platform of setting up communication process, described method comprises:
Set up managing process at the second process platform, wherein, described managing process can be connected in multiple processes that are managed communicatedly;
Set up forwarding process at described managing process, described forwarding process is in the time listening to the connection request of communication process of described the first process platform, receive the message that described communication process sends and resolve described type of message, and finding out the corresponding process that is managed according to described type of message and receive described message as target process.
7. cross-platform Way of Process Communication according to claim 6, is characterized in that, the first data buffer that described communication process presets preset data form is that message queue supplies to write type of message and content, and then sends described message; Described forwarding process presets the message that send to read described communication process the second data buffer of described preset data form.
8. cross-platform Way of Process Communication according to claim 7, is characterized in that, described the first process platform and the second process platform are under Linux environment, and described preset data form is msgbuf data structure.
9. cross-platform Way of Process Communication according to claim 6, is characterized in that, described multiple processes that are managed are positioned at different platforms from described managing process.
10. cross-platform Way of Process Communication according to claim 9, is characterized in that, the default process communication interface function of described forwarding process by invocation target process place platform is to be sent to message described target process.
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