CN101615112B - Method, device and system for processing command - Google Patents
Method, device and system for processing command Download PDFInfo
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Abstract
The embodiment of the invention relates to a method, a device and a system for processing a command, wherein the method comprises that: a local user interactive interface receives an input command; and when the input command is a switching command, a login command is sent to a remote operation system or a remote command processing unit in a remote processor designated by the switching command, so that a user logs on the remote command processing unit. The embodiment of the invention separately executes command interaction and command execution, and when being applied to distributed systems or multi-core processor systems, the embodiment of the invention realizes use of different operating systems and different processors.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of command handling method, Apparatus and system.
Background technology
In the embedded development technology, operating system provides one or more command line interfaces usually, better mutual in order to realize user and operating system, this class command line interface instrument is referred to as order debugger (SHELL), and common order debugger has function analytical tool WindSh and the user in the linux operating system and the operating system nucleus communication tool Bash among the real time operating system vxWorks.
WindSh is the interface between user and the vxWorks, and calling of function level is provided, and makes directly any overall situation function and the variable among invokes application module or the vxWorks of user.Specifically, after vxWorks starts, create a SHELL process, wait for user's input command; After the user imported an order, SHELL checked whether grammer is correct; If correct, SHELL search symbol table finds symbol, extracts information such as type and corresponding address; If the order of input is function, constructing variable and carry out then, if the order of input is variable, direct output variable value then.If make mistakes in the said process, then directly return, and output error message, if cause catastrophic results in the implementation, then restart SHEEL.But the WindSh that vxWorks carries can only use under vxWorks operating system, can't realize that cross operating system uses.And, the WindSh that vxWorks carries is under multinuclear or distributed platform, unless use remote login tools (as telnet, ssh etc.) to sign in on the goal systems, otherwise the SHELL of main control processor can't carry out the SHELL order of other processor, namely can't realize striding processor uses, and in embedded system, use Telnet to sign in to and have significant limitation on the goal systems.
Bash is the interface between user and the linux, and calling of program level is provided, and makes the user can directly call the application program in the file system.Under the linux system, Bash is the general designation of command language, command interpreter and programming language.Specifically, after linux starts, create a SHELL process, wait for user's input command; After the user imported an order, SHELL carried out syntax parsing; If correct, SHELL checks whether this order is internal command and application program; If internal command, then look-up command, this order are broken down into system call and send the linux kernel to; If application program is then carried out this application program; If neither internal command neither executable application program, then output error message.But the Bash that linux carries can only use under linux operating system, can't realize that cross operating system uses.And identical with WindSh is also can't realize striding processor and use.
Summary of the invention
The embodiment of the invention provides a kind of command handling method, Apparatus and system, uses and stride the processor use in order to realize cross operating system.
The embodiment of the invention provides a kind of command handling method, comprising:
Local user's interactive interface receives input command;
When described input command is switching command, send log on command to the remote operating system of described switching command appointment or the remote command processing unit in the teleprocessing unit, make the user sign in to the remote command processing unit.
The embodiment of the invention provides a kind of command processing device, comprising:
Receiver module is used for receiving input command;
First sending module is used for when described input command is switching command, sends log on command to the remote operating system of described switching command appointment or the remote command processing unit in the teleprocessing unit, makes the user sign in to the remote command processing unit.
The embodiment of the invention provides a kind of command treatment system that comprises the mentioned order treating apparatus, also comprises:
The remote command processing unit is used for receiving the log on command that command processing device sends, and makes the user sign in to described remote command processing unit; And what receive the command processing device transmission should carry out respective handling by the remote command treatment progress to described subsequent commands by the subsequent commands of described remote command processing unit processes;
The local command processing unit is used for when input command described input command being handled accordingly by the local command treatment progress neither switching command neither exit command the time, receives the input command of command processing device transmission.
In the embodiment of the invention, when the input command that receives when local user's interactive interface was switching command, local user's interactive interface sent log on command to the remote command processing unit of switching command appointment, makes the user sign in to the remote command processing unit.This shows, command interaction is to be finished by local user's interactive interface in the embodiment of the invention, can sign in to remote command processing unit in remote operating system or the teleprocessing unit by local user's interactive interface user, the method that the embodiment of the invention is provided is applied to distributed system or polycaryon processor system, can realize that cross operating system uses and stride the processor use.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of the embodiment of the invention one command handling method;
Fig. 2 is the process flow diagram of the embodiment of the invention two command handling methods;
Fig. 3 is the process flow diagram of being handled subsequent commands in the embodiment of the invention two command handling methods by the remote command treatment progress;
Fig. 4 is the structural representation of the embodiment of the invention one command processing device;
Fig. 5 is the structural representation of the embodiment of the invention two command processing devices;
Fig. 6 is the structural representation of embodiment of the invention command treatment system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the process flow diagram of the embodiment of the invention one command handling method.As shown in Figure 1, present embodiment specifically comprises the steps:
Local user's interactive interface is the interface between user and local operation system or the native processor, and its function mainly is the order that receives user's input, order is identified, and sent to local command processing unit or remote command processing unit.
Step 102, when input command is switching command, local user's interactive interface sends log on command to the remote operating system of switching command appointment or the remote command processing unit in the teleprocessing unit, makes the user sign in to the remote command processing unit.
Concrete, local user's interactive interface process can be identified input command, judges whether switching command, and switching command is the order to remote operating system or teleprocessing unit switching of user's input.If to judge input command be switching command, local user's interactive interface sends log on command to the remote command processing unit of switching command appointment, this log on command is the order that the user logins remote operating system or teleprocessing unit, makes the user sign in to the remote command processing unit.
In the present embodiment, when the input command that receives when local user's interactive interface was switching command, local user's interactive interface sent log on command to the remote command processing unit of switching command appointment, makes the user sign in to the remote command processing unit.This shows, command interaction is to be finished by local user's interactive interface in the present embodiment, can sign in to remote command processing unit in remote operating system or the teleprocessing unit by local user's interactive interface user, the method that provides according to present embodiment can realize in distributed system or polycaryon processor system that cross operating system uses and strides processor and use.
Fig. 2 is the process flow diagram of the embodiment of the invention two command handling methods.Present embodiment can be applied in distributed system or the polycaryon processor system.Distributed system comprises master control borad and one or more other plate (as business board or interface board etc.), and wherein master control borad is local system, and other plate is remote system.The polycaryon processor system comprises control module and other unit except control module such as one or more Service Processing Unit, interface processing unit, polycaryon processor can be asymmetric multiple processing (AsymmetricMulti-Processing, be called for short: AMP) framework or symmetrical multiple processing (SymmetricMulti-Processing, be called for short: SMP) framework, if AMP framework, then control module is native processor, other unit teleprocessing unit; If the SMP framework, any one unit can be native processor or teleprocessing unit, and it is inequality that the difference of native processor and teleprocessing unit is at least process number.
In the present embodiment, on function, SHELL is divided into user interactions interface and command process unit, as local SHELL, its local user's interactive interface not only is connected with the local command processing unit, also is connected with remote command processing unit among the long-range SHELL of remote system or teleprocessing unit.The interactive mode of local user's interactive interface and local command processing unit can adopt the mode of directly calling; The interactive mode of local user's interactive interface and remote command processing unit can realize by multiple flexible way, as adopt modes such as two layers of exchange or internuclear communication to communicate.
Before the method that the execution present embodiment provides, need to create local SHELL and long-range SHELL.Wherein the constructive process of local SHELL is: when os starting, create local user's interactive interface process and local command treatment progress, and the fileinfo and the local command processing unit that import the tape symbol table into identify (ID), the local command treatment progress obtains symbol table according to fileinfo, is mapped in the internal memory.The constructive process of long-range SHELL similarly, its difference is that long-range SHELL can not create long-distance user's interactive interface process.Like this, there is own unique sign each command process unit, this sign is according to the difference of system architecture and difference to some extent, and for example this sign can be CPU number and process number in the polycaryon processor system, and this sign can be plate number, CPU number and process number in distributed system.The file of above-mentioned tape symbol table can be specially to carry out and can link form (Executable and LinkingFormat is called for short: ELF) file, but present embodiment is not limited only to this.
As shown in Figure 2, present embodiment specifically comprises the steps:
Step 201, after signing in to local user's interactive interface, local user's interactive interface receives input command.
Concrete, after the user signed in to local user's interactive interface, local user's interactive interface was waited for user's input command, when the user import one be the input command of end mark with the carriage return after, local user's interactive interface receives this input command.
Concrete, switching command is the order to remote system or teleprocessing unit switching of user's input.Local user's interactive interface process can be identified this input command, and whether judge is switching command.
Step 203, local user's interactive interface send log on command to the remote operating system of switching command appointment or the remote command processing unit in the teleprocessing unit.
Concrete, owing to carry the sign of remote command processing unit in this switching command, the corresponding remote command processing unit of this sign is the remote command processing unit of switching command appointment.Particularly, in distributed system, local user's interactive interface of master control borad is by the remote command processing unit transmission log on command of Ethernet interface to other plate; In the polycaryon processor system, local user's interactive interface of control module is by the remote command processing unit transmission log on command of internuclear communication mode to other unit.
After step 204, remote command processing unit receive log on command, return to local user's interactive interface and to receive the response, make the user namely sign in to the remote command processing unit, enter step 205.
Concrete, after the remote command processing unit receives log on command, can return to local user's interactive interface and receive the response.If when local user's interactive interface does not receive receiveing the response that the remote command processing unit returns in the given time, local user's interactive interface process output switch failure information, namely the user logins the failure of remote command processing unit.
After the user successfully signed in to the remote command processing unit, local user's interactive interface waited for that the user imports subsequent commands, when the user import one be the subsequent commands of end mark with the carriage return after, local user's interactive interface receives this subsequent commands.If this subsequent commands neither switching command neither exit command, and identify this order should be by above-mentioned remote command processing unit processes the time, then local user's interactive interface sends to the remote command processing unit with subsequent commands, by the remote command treatment progress described subsequent commands is carried out respective handling.
Particularly, in distributed system, local user's interactive interface of master control borad can be by the remote command processing unit transmission subsequent commands of Ethernet interface to other plate; In the polycaryon processor system, local user's interactive interface of control module can be by the remote command processing unit transmission subsequent commands of internuclear communication mode to other unit.
Further, can also comprise before step 205: local user's interactive interface is judged subsequent commands whether for exiting command, if, then withdraw from current command process process,
Concrete, that is to say, withdraw from the remote command treatment progress; Otherwise, execution in step 205.This exits command is the remote system that withdraws from current login imported of user or the order of teleprocessing unit.
Whether exiting command of this step is the local system that withdraws from current login imported of user or the order of native processor, and local user's interactive interface process can be identified this input command, judge for exiting command.
Step 207, local user's interactive interface send input command to the local command processing unit, handle this input command by the local command treatment progress.
Concrete, if currently then withdraw from the local command treatment progress by the order of local command processing unit processes, if current by the order of remote command processing unit processes, then withdraw from the remote command treatment progress.
The step 206 of present embodiment also can be carried out before step 202, was when exiting command when judging input command, withdrawed from the local command treatment progress of current login, was not when exiting command when judging input command, execution in step 202.
Fig. 3 is the process flow diagram of being handled subsequent commands in the embodiment of the invention two command handling methods by the remote command treatment progress.As shown in Figure 3, further, handling subsequent commands by the remote command treatment progress in the step 205 can specifically comprise:
Step 302, remote command treatment progress are carried out subsequent commands, and the remote command processing unit returns execution result to local user's interactive interface.
The processing procedure of this step can be specially: the remote command treatment progress is searched the entry address of subsequent commands correspondence in the symbol table of remote system or teleprocessing unit, and wherein function brings into operation from the entry address; Adopt redirecting technique, the execution result that goes on a long journey function is returned to local user's interactive interface.
If occur unusually in the subsequent commands implementation, the remote command treatment progress then resets.
It is similar to handle process and the process shown in Figure 3 of input command by the local command treatment progress in the step 207, does not repeat them here.
Need to prove that the method that present embodiment provides can use standard C language to realize, that is to say, can realize the function of SHELL in the present embodiment with standard C language.
In the present embodiment, the user interactions interface separates with the command process unit, also be that command interaction separates with command execution, solved prior art and in distributed system or polycaryon processor system, had only a main control unit and have only under the situation of a serial ports problem of the very difficult login of user.When the method that present embodiment is provided is applied to distributed system or polycaryon processor system, local system can be different operating system with remote system, native processor also can be different processors with teleprocessing unit, realized cross operating system and stride processor and use by mutual between local user's interactive interface and the remote command processing unit, thus realized a main control unit and other unit alternately.Present embodiment calls by using the function level, is very easy to the debugging of distributed system or polycaryon processor system.
In addition, because present embodiment can adopt standard C language to realize the function of SHELL, be not limited to the file layout of specific tape symbol table, also be not limited to communication mode concrete between user interactions interface and the command process unit, the correlation function of system can plug and play, thereby be not limited to concrete operating system, so improved the portability of code.
Fig. 4 is the structural representation of the embodiment of the invention one command processing device.Command processing device in the present embodiment can be specially the local user's interactive interface among the said method embodiment.As shown in Figure 4, present embodiment comprises receiver module 11 and first sending module 12.Wherein:
First sending module 12 is used for when input command is switching command, sends log on command to the remote operating system of switching command appointment or the remote command processing unit in the teleprocessing unit, makes the user sign in to the remote command processing unit.
Local user's interactive interface of present embodiment is the interface between user and local operation system or the native processor, receiver module 11 receives input command, by input command is identified, judge whether switching command, switching command is the order to remote operating system or teleprocessing unit switching of user's input.If to judge input command be switching command, by the remote command processing unit transmission log on command of first sending module 12 to the switching command appointment, this log on command is the order that the user logins remote operating system or teleprocessing unit, makes the user sign in to the remote command processing unit.
In the present embodiment, when the input command that receives when receiver module is switching command, first sending module sends log on command to the remote command processing unit of switching command appointment, make the user sign in to the remote command processing unit, because command interaction is to be finished by local user's interactive interface, can sign in to remote command processing unit in remote operating system or the teleprocessing unit by local user's interactive interface user, the device that present embodiment is provided is applied to distributed system or polycaryon processor system, can realize that cross operating system uses and stride the processor use.
Fig. 5 is the structural representation of the embodiment of the invention two command processing devices.As shown in Figure 5, on the basis of said apparatus embodiment one, present embodiment also comprises second sending module 13, this second sending module 13 is used for when input command neither switching command neither exit command the time, input command is sent to the local command processing unit, by the local command treatment progress input command is handled accordingly.
Concrete, after receiver module 11 receives input command, can identify input command, judge whether switching command or exit command (concrete deterministic process can referring to method embodiment two), if judge input command neither switching command neither exit command, second sending module 13 sends input command to the local command processing unit, by the local command treatment progress input command is handled accordingly.
Further, present embodiment can also comprise and withdraw from module 14, this withdraw from module 14 be used for when input command when exiting command, withdraw from the current command treatment progress.
Concrete, if currently then withdraw from the local command treatment progress by the order of local command processing unit processes, if current by the order of remote command processing unit processes, then withdraw from the remote command treatment progress.
The subsequent commands by the remote command processing unit processes that above-mentioned first sending module 12 can also be used for receiving sends to the remote command processing unit, by the remote command treatment progress subsequent commands is carried out respective handling.Concrete processing procedure can be referring to method embodiment two.
In the present embodiment, the user interactions interface separates with the command process unit, also be that command interaction separates with command execution, when the device that present embodiment is provided is applied to distributed system or polycaryon processor system, local system can be different operating system with remote system, realized the cross operating system use, native processor can be different processors with teleprocessing unit, has realized striding processor and has used.Present embodiment has realized that also the function level calls, and is very easy to the debugging of distributed system or polycaryon processor system.
Fig. 6 is the structural representation of embodiment of the invention command treatment system.As shown in Figure 6, present embodiment comprises command processing device (being local user's interactive interface) 21, remote command processing unit 22 and local command processing unit 23.
Wherein, the concrete structure of command processing device 21 can be referring to the description of device embodiment.
Remote command processing unit 22 is used for receiving the log on command that command processing device 21 sends, and makes the user sign in to remote command processing unit 22; And what receive command processing device 21 transmissions should carry out respective handling by the remote command treatment progress to subsequent commands by the subsequent commands of these remote command processing unit 22 processing.
Local command processing unit 23 is used for when input command input command being handled accordingly by the local command treatment progress neither switching command neither exit command the time, receives the input command of command processing device 21 transmissions.
Command interaction is to be finished by command processing device in the present embodiment, can sign in to remote command processing unit in remote operating system or the teleprocessing unit by the command processing device user, the system applies that present embodiment is provided is in distributed system or polycaryon processor system, can realize that cross operating system uses and strides processor and use.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is when carrying out, execution comprises the step of said method embodiment, and aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to the technical scheme of the embodiment of the invention to be described, is not intended to limit; Although with reference to previous embodiment the embodiment of the invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the embodiment of the invention.
Claims (10)
1. a command handling method is characterized in that, comprising:
Local user's interactive interface receives input command;
When described input command is switching command, send log on command to the remote operating system of described switching command appointment or the remote command processing unit in the teleprocessing unit, making the user sign in to the remote command processing unit carries out the function level and calls, described log on command is logined the order of remote operating system or teleprocessing unit for the user, described switching command is the order to described remote operating system or the switching of described teleprocessing unit of user's input, wherein, describedly send log on command to the remote operating system of described switching command appointment or the remote command processing unit in the teleprocessing unit and comprise:
In distributed system, local user's interactive interface of master control borad is by the remote command processing unit transmission log on command of Ethernet interface to other plate; In the polycaryon processor system, local user's interactive interface of control module is by the remote command processing unit transmission log on command of internuclear communication mode to other unit.
2. command handling method according to claim 1 is characterized in that, also comprises:
Neither switching command neither exit command the time, described local user's interactive interface sends described input command to the local command processing unit, by the local command treatment progress described input command is handled accordingly when described input command.
3. command handling method according to claim 1 is characterized in that, also comprises:
When described input command when exiting command, withdraw from current command process process.
4. command handling method according to claim 1 is characterized in that, also comprises:
What local user's interactive interface will receive should be sent to the remote command processing unit by the subsequent commands of remote command processing unit processes, by the remote command treatment progress described subsequent commands is carried out respective handling.
5. command handling method according to claim 4 is characterized in that, described remote command treatment progress is handled accordingly described subsequent commands and comprised:
The remote command treatment progress carries out grammer or lexical analysis to described subsequent commands, if correct, then carries out described subsequent commands; Otherwise, return grammer or morphology error message.
6. a command processing device is characterized in that, comprising:
Receiver module is used for receiving input command;
First sending module, be used for when described input command is switching command, send log on command to the remote operating system of described switching command appointment or the remote command processing unit in the teleprocessing unit, making the user sign in to the remote command processing unit carries out the function level and calls, described log on command is logined the order of remote operating system or teleprocessing unit for the user, described switching command is the order to described remote operating system or the switching of described teleprocessing unit of user's input, describedly send log on command to the remote operating system of described switching command appointment or the remote command processing unit in the teleprocessing unit and comprise: in distributed system, local user's interactive interface of master control borad sends log on command by Ethernet interface to the remote command processing unit of other plate; In the polycaryon processor system, local user's interactive interface of control module is by the remote command processing unit transmission log on command of internuclear communication mode to other unit.
7. command processing device according to claim 6 is characterized in that, also comprises:
Second sending module is used for when described input command described input command being handled accordingly by the local command treatment progress neither switching command neither exit command the time, sends described input command to the local command processing unit.
8. command processing device according to claim 6 is characterized in that, also comprises:
Withdraw from module, be used for when described input command when exiting command, withdraw from current command process process.
9. command processing device according to claim 6 is characterized in that:
What described first sending module also was used for receiving should be sent to the remote command processing unit by the subsequent commands of described remote command processing unit processes, by the remote command treatment progress described subsequent commands is carried out respective handling.
10. command treatment system that comprises the described command processing device of the arbitrary claim of claim 6 to 9 is characterized in that also comprising:
The remote command processing unit is used for receiving the log on command that command processing device sends, and makes the user sign in to described remote command processing unit, and described log on command is logined the order of remote operating system or teleprocessing unit for the user; And what receive the command processing device transmission should carry out respective handling by the remote command treatment progress to described subsequent commands by the subsequent commands of described remote command processing unit processes;
The local command processing unit is used for when input command described input command being handled accordingly by the local command treatment progress neither switching command neither exit command the time, receives the input command of command processing device transmission.
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| CN108345248B (en) * | 2018-02-28 | 2019-11-01 | 财付通支付科技有限公司 | A kind of long-range control method, device and storage medium |
| CN114153585A (en) * | 2021-12-02 | 2022-03-08 | 建信金融科技有限责任公司 | Data processing method and related equipment |
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| CN1928806A (en) * | 2005-09-09 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Two-desktop remote control systems and method |
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