CN102495869B - High-reliability remote browsing system and browsing method of avionics file system - Google Patents
High-reliability remote browsing system and browsing method of avionics file system Download PDFInfo
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Abstract
The invention relates to a high-reliability remote browsing system and a browsing method of an avionics file system. The remote browsing system comprises a host machine remote file browsing subsystem and a target machine remote file browsing subsystem, wherein the host machine remote file browsing subsystem comprises a UI software unit, a Reliance file system, a remote file service module and a remote communication service module a the host machine, and the target machine remote file browsing subsystem comprises a command parsing function module, a command execution function module and a result replying function module. The system and the method solve the technical problem that the existing operations to a Reliance embedded file system are realized by operating the files through writing codes on a target machine by users, and fault analysis and fault location cannot be performed effectively. The system and the method realize visualization and transparency of remote file operations, and provide a multifunctional and simply operated embedded Reliance file system local browsing way for the Reliance embedded file system.
Description
Technical field
The invention belongs to for the highly reliable embedded file system in integrated avionics, the private file browser that carries out remote document access, browses and manage, relate in particular to highly reliable avionics file system remote browse system and browsing method.
Background technology
Develop rapidly along with aeronautical technology, computer technology, microelectric technique, avionics system has marched toward the modularization comprehensive avionics system stage, in avionics system, the data file quantity of various uses sharply increases,, if generation causes the situation of loss of data, damage because of system power failure or file system collapse, will cause loss difficult to the appraisal.Therefore, avionics system has proposed to use the Reliance embedded file system with high safety, high reliability to carry out the requirement of data storage.But present singularity due to embedded system, operation to embedded type file is very inconvenient, the user writes code to complete operation to file on target machine, then by mode Output rusults such as hyper terminals, brings inconvenience in software development, debugging, when comprehensive the user.Lack for the effective viewable access of Reliance file system, browse means, will have the following disadvantages like this: integrated avionics data file management personnel and system integrator, can't directly browse with operating remote Reliance avionics file system in data and file, can not revise at any time as required file or catalogue in the Reliance file system; If the file operation mistake occurs in addition, can only carry out failure judgement by the error code that returns, but these error code information are all generally to show with text mode, not only not intuitively beyond one's depth, and the state of whole file system can't allow the user understand fault to occur the time, cause effectively carrying out fault analysis and location.
Summary of the invention
existing code is write in the operation of Reliance embedded file system complete operation to file by the user on target machine in order to solve, can not effectively carry out the technical matters of fault analysis and location, the present invention is on the basis that the principle to the remote system browser technology is studied, a kind of highly reliable avionics file system remote browse system and browsing method are provided, be applicable to the implementation of the telefile browing system of Reliance avionics file system, realized the visual and transparence of Remote File Manipulation, for the Reliance embedded file system provides a kind of feature richness, means are browsed in embedded Reliance file system this locality simple to operate.The purpose of the invention is to provide a kind of when keeping embedded airborne operating system characteristics and kernel, realizes the remote browse system of the localization operation of embedded Reliance file system.Can be by the mode of graphic interface, help system developer on host as the file of operation in local disk, the Reliance file system in the Action Target machine quickly and easily.
Technical solution of the present invention:
Highly reliable avionics file system remote browse system, its special character is: comprise host telefile browser subsystem and target machine telefile browser subsystem,
Described host telefile browser subsystem comprises UI software unit, Reliance file system module, remote file service module, the far-distance communication service module that is arranged in host,
Described UI software unit comprises the file of the Reliacne file system that guide, the Telefile browser that connects for establishment physics Reliacne file system and the physics Reliacne file system connection that is used for the demonstration establishment are pointed to and the remote system properties view of folder attribute information;
Described Telefile browser comprises the remote system Connection Service unit that connects the Reliacne file system of pointing to for the physics Reliacne file system that connects or disconnection guide creates; File system structure browse view for the tree structure logical relation between driver, file and the file nodes at different levels of the Reliacne file system that shows the physics Reliacne file system connection sensing that creates; Be connected newly-built, delete, copy, paste, move, rename creates physics Reliacne file system and connects the file of the Reliacne file system of pointing to and the file operation unit of file;
Described Reliance file system module is that the physics Reliacne file system that creates in guide connects logic Reliance file system that point to, corresponding with physics Reliacne file system, and it comprises system configuration, system type, Reliance file system model, Reliance telefile and file system Connection Service;
System configuration: the system configuration that physics Reliacne file system has; Deploy content comprises: systematic name, alliance, Reliance remote file service configuration item and file system Connection Service configuration item;
System type: be used for physics Reliacne file system on the sign target machine;
Reliance file system model:, by logic Reliacne file system corresponding to physics Reliacne file system on the target machine of system configuration establishment, provide Reliance remote file service and file system Connection Service two services;
Reliance telefile: by long-range Reliance file adapter, change the logical file that the local Reliance image file of Reliance obtains;
File system Connection Service: be used for realizing connecting, disconnecting physics Reliance file system on target machine by the far-distance communication service module;
Described remote file service module comprises the storage unit that is used to physics Reliance file that the Reliance remote file service unit of Remote File Manipulation service is provided and is used for the local Reliance image file of storage physics Reliance file,
Described Remote File Manipulation service comprises and creaties directory, opens catalogue, reads catalogue, rename directory, closes catalogue, deltrees, opens file, file reading, file reading attribute, copied files, written document, rename, close file, deleted file, enumerates file, modification, transmission telefile and file;
Described communication service module comprises the agreement memory module for storage RFSE communication protocol; Be used for the Remote File Manipulation service of Reliance remote file service is assembled into command packet according to RFSE communication protocol and sends to target machine Reliance file system navigator, reception is replied bag from the order of target machine Reliance file system navigator, and resolve command is replied bag and according to the file system client of return information display file operating result; With the target machine file storage module that is used for storage physics Reliance file model;
described target machine telefile browser subsystem comprise be arranged in target machine according to RFSE communication protocol and data packet format, resolve the resolve command functional module of the remote-operated order of host transmission, parse the command information of remote-operated order according to the resolve command functional module, call the API that physics Reliance file system provides, fill order, the fill order functional module of completing user request, to physics Reliance file system File operating result, the operating result packet that is packaged into this order returns to the module of recovery function as a result of host telefile browser subsystem by Target agent.
Above-mentioned target machine telefile browser subsystem also comprise for to resolve command functional module, fill order functional module and as a result the mistake that occurs of recovery function module routine in time process, and return to miscue information for the host user, and prevent from simultaneously affecting the security of embedded system because mistake causes the target machine telefile browser abnormal? mistake fault tolerance module.
Highly reliable avionics file system remote browsing method, its special character is: comprise the following steps:
1] set up host telefile browser subsystem in host:
1.1] the system type expansion of browsing software (RSE) by remote system creates Reliance file system connection type,
1.2] system extension of browsing software (RSE) by remote system creates the Reliance file system module;
1.3] browse software (RSE) file service expansion by remote system and create the remote file service module of Reliance file system;
1.4] establishment far-distance communication service module;
1.5] browse software (RSE) UI expanded definition by remote system and go out the UI software unit, show Reliance file system connection type, Reliance file system structure and executable remote file service in the UI software unit;
2] create target machine telefile browser subsystem on target machine:
described target machine telefile browser subsystem comprise be arranged in target machine according to RFSE communication protocol and data packet format, resolve the resolve command functional module of the remote-operated order of host transmission, parse the command information of remote-operated order according to the resolve command functional module, call the API that physics Reliance file system provides, fill order, the fill order functional module of completing user request, with to physics Reliance file system File operating result, the operating result packet that is packaged into this order returns to the module of recovery function as a result of host telefile browser subsystem by Target agent,
3] establish the link:
The user, by the title of physics Reliacne file system and the network address, input system configuration and system type on the intended target machine in guide, creates the Reliacne file system model of this physics Reliacne file system, i.e. long-range connection link;
4] connect:
4.1] user sends physics Reliacne file-system command on the linking objective machine by the file system structure browse view:
4.2] the Reliacne file system model calls the file system Connection Service bind command is sent to Target agent by file system client;
4.3] Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem;
4.4] host telefile browser subsystem is according to the feedback result of Target agent, activates the Reliacne file system model, makes its service state become the ready state that has connected, and opens long-range connection link:
5] browsing file and file operation:
5.1] user sends file manipulation command to physics Reliacne file system on target machine by the file system structure browse view:
5.2] the file system structure browse view sends to file manipulation command the Reliacne file system model that has activated;
5.3] the Reliacne file system model is converted into file manipulation command the Remote File Manipulation that the Reliacne file system model provides, and call Reliance remote file service unit and send Remote File Manipulation to file system client;
5.4] file system client sends to resolve command module by Target agent with Remote File Manipulation with Remote File Manipulation;
5.5] Remote File Manipulation that goes out according to the resolve command module parses of command execution module, call the file operation API of physics Reliance file system, after carrying out physics Reliance file operation, operating result is replied module by result send to Target agent;
5.6] Target agent feeds back to host telefile browser subsystem with operating operation, and in the file system structure browse view, show;
6] disconnect:
6.1] user sends and disconnects order to physics Reliacne file system on target machine by the file system structure browse view:
6.2] the Reliacne file system model calls the file system Connection Service and will disconnect order and send to Target agent by file system client;
6.3] Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem.
6.4] host telefile browser subsystem is according to the feedback result of Target agent, nullifies the Reliacne file system model, makes its service state become the disarmed state that does not connect, and closes long-range connection link.
The present invention has advantages of again with respect to prior art:
1, the localization of embedded system file operation, make the developer the file during on host, picture operates local disk, quickly and easily the Reliance file system in the Action Target machine.
2, the telefile navigation process is fully transparent to the user: the tree structure that shows Reliance avionics file system in patterned mode, level by " driver title " → " file " → " file " is divided, and realizes the various of specific file are browsed and operate.
3, provide abundant file operation function: the user can as the operation local file system the efficient Reliance file system that operates easily, except the establishment, deletion, modification, rename supported specific file resource, also be supported between local file system and Reliance avionics file system and carry out file copy and movement.
4, the characteristic that has kept embedded operating system kernel: need not operating system nucleus is modified, the pitching pile size of code is very little, and the probe effect is little.
5, be convenient to transplant: at all, can transplant very easily Reliance avionics file system navigator (Reliance File System Explorer, referred to as RFSE) on based on the platform of Eclipse.
Description of drawings
Fig. 1 is the highly reliable avionics file system of the present invention remote browse system architecture schematic diagram;
Fig. 2 is the host telefile browser subsystem structure schematic diagram of the highly reliable avionics file system of the present invention remote browse system;
Fig. 3 is host telefile browser subsystem mutual relationship schematic diagram;
Fig. 4 is the remote system browse view;
Fig. 5 is the remote system right-click menu;
Fig. 6 is target machine telefile browser subsystem schematic diagram;
Fig. 7 is Reliance file browser communication protocol services request form;
Fig. 8 is that form is as a result replied in the service of Reliance file browser communication protocol.
Embodiment
Host end telefile browser, can be with visual and two kinds of edit patterns of text editing, establishment, deletion, the edition function of support to the file in Reliance file system on remote system and file, simultaneously can be in the consistance of safeguard file in file operation.Host telefile browser subsystem comprises the following functions unit, as shown in Figure 1 and Figure 2:
1) UI software unit
The UI software unit comprises the file of the Reliacne file system that guide, the Telefile browser that connects for establishment physics Reliacne file system and the physics Reliacne file system connection that is used for the demonstration establishment are pointed to and the remote system properties view of folder attribute information;
Described Telefile browser comprises the remote system Connection Service unit that connects the Reliacne file system of pointing to for the physics Reliacne file system that connects or disconnection guide creates; File system structure browse view for the tree structure logical relation between driver, file and the file nodes at different levels of the Reliacne file system that shows the physics Reliacne file system connection sensing that creates (is seen mistake! Do not find Reference source.); Be connected newly-built, delete, copy, paste, move, rename creates physics Reliacne file system and connects the file of the Reliacne file system of pointing to and the file operation unit of file; (see mistake! Do not find Reference source.)
The file system structure browse view provides " remote system " view, show the tree structure logical relation between the nodes at different levels such as driver, file, file of Telefile for the user,, by " remote system " view, support that the user creates long-range connection.
Provide newly-built, delete, copy, paste, move, the rename telefile, connect remote system and disconnect the function of remote system by the right-click menu in part system architecture browse view, be i.e. the file operation unit.
Comprise title, size, type, access limit etc. by the attribute information of telefile by showing in " attribute " view and " remote system details " view in addition.
2) Reliance file system
By the extension point that provides at IBM RSE, a kind of new Reliance file system of definition in original remote system, then the Reliance file service of file service layer and Connection Service, Reliance file system model, system type, type configuration and resource consistency are combined, for the user provides a remote host system object, it has config option, Connection Service.
Described Reliance file system module is that the physics Reliacne file system that creates in guide connects logic Reliance file system that point to, corresponding with physics Reliacne file system, and it comprises system configuration, system type, Reliance file system model, Reliance telefile and file system Connection Service;
System configuration: the system configuration that physics Reliacne file system has; Deploy content comprises: systematic name, alliance, Reliance remote file service configuration item and file system Connection Service configuration item;
System type: be used for physics Reliacne file system on the sign target machine;
Reliance file system model:, by logic Reliacne file system corresponding to physics Reliacne file system on the target machine of system configuration establishment, provide Reliance remote file service and file system Connection Service two services;
Reliance telefile: by long-range Reliance file adapter, change the logical file that the local Reliance image file of Reliance obtains;
File system Connection Service: be used for realizing connecting, disconnecting physics Reliance file system on target machine by the far-distance communication service module.
3) remote file service module
Described remote file service module comprises the storage unit that is used to physics Reliance file that the Reliance remote file service unit of Remote File Manipulation service is provided and is used for the local Reliance image file of storage physics Reliance file.
Provide and create directory, open catalogue, read catalogue, rename directory, close catalogue, deltree, open file, file reading, file reading attribute, copied files, written document, rename, close file, deleted file, enumerate the remote file services such as file, modification, transmission telefile and file.Its operand is the Reliance file on target machine, and in this locality, for it, sets up the interim image file.
4) far-distance communication service module
The communication service module comprises the agreement memory module for storage RFSE communication protocol; Be used for the communication between Telefile browser and target machine telefile browser subsystem; Be used for the Remote File Manipulation service of Reliance remote file service is assembled into command packet according to RFSE communication protocol and sends to target machine Reliance file system navigator, reception is replied bag from the order of target machine Reliance file system navigator, and resolve command is replied bag and according to the file system client of return information display file operating result; With the target machine file storage module that is used for storage physics Reliance file model;
, by definition Reliance file system client, set up the communication connection between host Reliance file system navigator and target machine Reliance file system navigator.The remote-operated order of file service layer is assembled into command packet according to RFSE communication protocol, send to target machine Reliance file system navigator, reception is from the order commands in return bag of target machine Reliance file system navigator, resolution data bag and according to return message, the display file operating result.
5) host Telefile browser software unit interactive relation
Interactive relation between each software unit of host Telefile has been described, the user defines and Reliance Telefile of exampleization by guide, and the file operation in remote view will be according to the order generation effect successively of Reliance telefile, target machine physics Reliance file, local image file.
Ask to open the example that is operating as of telefile by UI with the user, at first this operation can be converted to the operation to the Reliance telefile, then change into operation to this document on the remote object machine by the Reliance file service, to create in this locality the image file of this remote object machine file finally, and by the editing machine of IDE, open this document.Then in remote system Detail View and properties view, demonstration is used as the attribute information of the local image file that the Reliance telefile is opened.
target machine telefile browser subsystem comprise be arranged in target machine according to RFSE communication protocol and data packet format, resolve the resolve command functional module of the remote-operated order of host transmission, parse the command information of remote-operated order according to the resolve command functional module, call the API that physics Reliance file system provides, fill order, the fill order functional module of completing user request, to physics Reliance file system File operating result, the operating result packet that is packaged into this order returns to the module of recovery function as a result of host telefile browser subsystem by Target agent.
Also comprise for to resolve command functional module, fill order functional module and as a result the mistake that occurs of recovery function module routine in time process, and return to miscue information for the host user, and prevent from simultaneously affecting the security mistake fault tolerance module of embedded system because mistake causes target machine telefile browser abnormal.
Target machine telefile browser is responsible for receiving the various command that comes from host telefile browser, unpack, resolve according to Reliance file system communication protocol, then the file operation API that calls the Reliance file system completes these orders, and the result that will carry out returns to target machine telefile browser, finally by remote system, browses skeleton view display operation result.
Target machine telefile browser (RFSE Agent) comprises resolve command, fill order, reply result and four main modular of mistake fault-tolerant processing.Target machine telefile browser structure such as a mistake! Do not find Reference source.Shown in.
1) resolve command functional module
Communication protocol and data packet format according to host and target machine Telefile browser agreement, resolve the control command of host, comprise bind command, disconnect order, enumerate the file name list commands, new files order, new folder order, deleted file order, Delete Folder order, rename folder order etc.
2) fill order functional module
According to the command information that parses, call the API that the Reliance file system provides, carry out these orders by host end telefile browser, the request of completing user.
3) recovery function module as a result
To the operating result of resource in the Reliance file system, be packaged into the operating result packet of this order, return to host telefile browser.
4) mistake fault tolerance module
Assurance is in time processed the mistake that occurs in above three functional module courses of work, for the user returns to miscue information, and prevents from simultaneously affecting the security of embedded system because mistake causes target machine telefile browser abnormal.
Host file system navigator and target machine file system navigator communication process
The process of communicating by letter between host file system navigator and target machine file system navigator, Reliance file system: at first host file system navigator and TS connect, after successfully setting up this and connecting.The user just can use it to target machine, to send various control commands, and the control command of transmission is forwarded to the target machine file system navigator by TS, TA successively.RFSE acts on behalf of instrument and creates when the operating system nucleus initialization before this, and is in blocked state, waits for the services request of host file system navigator.If receive request, just call the API of Reliance file system, complete the various file operations of request, and finally the result of these operations is reported host side RFSE application program, be shown to the user.
Host side file system navigator and target machine end file system navigator communication protocol:
Telefile browser communication protocol definition main frame browser client and target machine browse the command packet between module and reply the form of packet and the details such as data item.Packet between host and target machine all must be followed this communication protocol.
1) Reliance file browser communication protocol services request form
The request form is comprised of following two parts data content, as mistake! Do not find Reference source.Shown in:
Command code, command code length is fixed as 4 bytes, is used for the type of unique identification request service.
Order data, the particular command data message that command code is corresponding, content can be arbitrary value.
2) form is as a result replied in the service of Reliance file browser communication protocol
The reply result comprises by following three parts and forming, as mistake! Do not find Reference source.Shown in:
Data package size, the size of valid data in packet is replied in expression.
Result code, the reply result numbering after various service execution.
Response message, the particular content that service is replied, can be filled to arbitrary value.
3) the host side file browser sends to the target machine file browser
The host side file browser comprises to the order that the target machine file browser sends: bind command, ON-and OFF-command, list All Files order, download file order, upload file order under current drive or catalogue, create file command, deleted file order, Rename file order, copied files order and move order.
The specific works step of Reliance file system navigator:
(1) at first at the host end, start the remote system browser view, create by the Telefile browser target machine that has Reliance avionics file system and connect.
(2) the long-range Reliance avionics file system on connection intended target machine, the tree-like root node drive letter of display file system.
(3) launch driver, as the operation local file system, Reliance avionics file system is carried out various browse operation, or carry out file copy or movement between local file system and long-range Reliance file system.
(4) disconnect and being connected of long-range Reliance avionics file system, the end telefile is browsed.
(5) close the remote system browser view, remove the telefile be kept in the temporary file buffer zone interim image file in this locality.
Highly reliable avionics file system remote browsing method comprises the following steps:
1] set up host telefile browser subsystem in host:
1.1] the system type expansion of browsing software (RSE) by remote system creates Reliance file system connection type,
1.2] system extension of browsing software (RSE) by remote system creates the Reliance file system module;
1.3] browse software (RSE) file service expansion by remote system and create the remote file service module of Reliance file system;
1.4] establishment far-distance communication service module;
1.5] browse software (RSE) UI expanded definition by remote system and go out the UI software unit, show Reliance file system connection type, Reliance file system structure and executable remote file service in the UI software unit.
2] create target machine telefile browser subsystem on target machine:
described target machine telefile browser subsystem comprise be arranged in target machine according to RFSE communication protocol and data packet format, resolve the resolve command functional module of the remote-operated order of host transmission, parse the command information of remote-operated order according to the resolve command functional module, call the API that physics Reliance file system provides, fill order, the fill order functional module of completing user request, with to physics Reliance file system File operating result, the operating result packet that is packaged into this order returns to the module of recovery function as a result of host telefile browser subsystem by Target agent.
3] establish the link:
The user, by the title of physics Reliacne file system and the network address, input system configuration and system type on the intended target machine in guide, creates the Reliacne file system model of this physics Reliacne file system, i.e. long-range connection link;
4] connect:
4.1] user sends physics Reliacne file-system command on the linking objective machine by the file system structure browse view:
4.2] file system structure browse view activation Reliacne file system model:
4.3] the Reliacne file system model calls the file system Connection Service bind command is sent to Target agent by file system client;
4.4] Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem;
5] browsing file and file operation:
5.1] user sends file manipulation command to physics Reliacne file system on target machine by the file system structure browse view:
5.2] the file system structure browse view sends to file manipulation command the Reliacne file system model that has activated;
5.3] the Reliacne file system model is converted into file manipulation command the Remote File Manipulation that the Reliacne file system model provides, and call Reliance remote file service unit and send Remote File Manipulation to file system client;
5.4] file system client sends to resolve command module by Target agent with Remote File Manipulation with Remote File Manipulation;
5.5] Remote File Manipulation that goes out according to the resolve command module parses of command execution module, call the file operation API of physics Reliance file system, after carrying out physics Reliance file operation, operating result is replied module by result send to Target agent;
5.6] Target agent feeds back to host telefile browser subsystem with operating operation, and in the file system structure browse view, show;
6] disconnect:
6.1] user sends and disconnects order to physics Reliacne file system on target machine by the file system structure browse view:
6.2] remote system Connection Service unit disconnection Reliacne file system model:
6.3] the Reliacne file system model calls the file system Connection Service and will disconnect order and send to Target agent by file system client;
6.4] Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem.
Claims (3)
1. highly reliable avionics file system remote browse system, is characterized in that, comprises with lower device:
Be used for setting up at host the device of host telefile browser subsystem:
System type expansion by remote system resources manager RSE creates Reliance file system connection type;
System extension by remote system resources manager RSE creates the Reliance file system module;
Create the remote file service module of Reliance file system by the expansion of remote system resources manager RSE file service;
Go out the UI software unit by remote system resources manager RSEUI expanded definition, show Reliance file system connection type, Reliance file system structure and executable remote file service in the UI software unit;
Be used for creating the device of target machine telefile browser subsystem on target machine:
described target machine telefile browser subsystem comprise be arranged in target machine according to RFSE communication protocol and data packet format, resolve the resolve command functional module of the remote-operated order of host transmission, parse the command information of remote-operated order according to the resolve command functional module, call the API that physics Reliance file system provides, fill order, the fill order functional module of completing user request, with to physics Reliance file system File operating result, the operating result packet that is packaged into this order returns to the module of recovery function as a result of host telefile browser subsystem by Target agent,
Be used for the device that establishes the link:
The user, by the title of physics Reliacne file system and the network address, input system configuration and system type on the intended target machine in guide, creates the Reliacne file system model of this physics Reliacne file system, i.e. long-range connection link;
Be used for the device that connects;
The user sends physics Reliacne file-system command on the linking objective machine by the file system structure browse view;
The Reliacne file system model calls the file system Connection Service bind command is sent to Target agent by file system client;
Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem;
Host telefile browser subsystem, according to the feedback result of Target agent, activates the Reliacne file system model, makes its service state become the ready state that has connected, and opens long-range connection link;
Be used for realizing the device of browsing file and file operation:
The user is by the file manipulation command of file system structure browse view transmission to physics Reliacne file system on target machine;
The file system structure browse view sends to file manipulation command the Reliacne file system model that has activated;
The Reliacne file system model is converted into file manipulation command the Remote File Manipulation that the Reliacne file system model provides, and calls Reliance remote file service unit and send Remote File Manipulation to file system client;
File system client sends to resolve command module by Target agent with Remote File Manipulation with Remote File Manipulation;
Command execution module, according to the Remote File Manipulation that the resolve command module parses goes out, is called the file operation API of physics Reliance file system, after carrying out physics Reliance file operation, operating result is replied module by result send to Target agent;
Target agent feeds back to host telefile browser subsystem with operating operation, and in the file system structure browse view, shows;
Be used for the device that disconnects:
The user sends and disconnects order to physics Reliacne file system on target machine by the file system structure browse view;
The Reliacne file system model calls the file system Connection Service and will disconnect order and send to Target agent by file system client;
Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem;
Host telefile browser subsystem, according to the feedback result of Target agent, is nullified the Reliacne file system model, makes its service state become the disarmed state that does not connect, and closes long-range connection link.
2. highly reliable avionics file system remote browse system according to claim 1, it is characterized in that: described target machine telefile browser subsystem also comprise for to resolve command functional module, fill order functional module and as a result the mistake that occurs of recovery function module routine in time process, and return to miscue information for the host user, and prevent from simultaneously affecting the mistake fault tolerance module of the security of embedded system because mistake causes target machine telefile browser abnormal.
3. highly reliable avionics file system remote browsing method is characterized in that: comprise the following steps:
1] set up host telefile browser subsystem in host:
1.1] create Reliance file system connection type by the system type expansion of remote system resources manager RSE,
1.2] create the Reliance file system module by the system extension of remote system resources manager RSE;
1.3] create the remote file service module of Reliance file system by remote system resources manager RSE file service expansion;
1.4] establishment far-distance communication service module;
1.5] go out the UI software unit by remote system resources manager RSEUI expanded definition, show Reliance file system connection type, Reliance file system structure and executable remote file service in the UI software unit;
2] create target machine telefile browser subsystem on target machine:
described target machine telefile browser subsystem comprise be arranged in target machine according to RFSE communication protocol and data packet format, resolve the resolve command functional module of the remote-operated order of host transmission, parse remote-operated command information according to the resolve command functional module, call the API that physics Reliance file system provides, fill order, the fill order functional module of completing user request, with to physics Reliance file system File operating result, the operating result packet that is packaged into this order returns to the module of recovery function as a result of host telefile browser subsystem by Target agent,
3] establish the link:
The user, by the title of physics Reliacne file system and the network address, input system configuration and system type on the intended target machine in guide, creates the Reliacne file system model of this physics Reliacne file system, i.e. long-range connection link;
4] connect:
4.1] user sends physics Reliacne file-system command on the linking objective machine by the file system structure browse view;
4.2] the Reliacne file system model calls the file system Connection Service bind command is sent to Target agent by file system client;
4.3] Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem;
4.4] host telefile browser subsystem is according to the feedback result of Target agent, activates the Reliacne file system model, makes its service state become the ready state that has connected, and opens long-range connection link;
5] browsing file and file operation:
5.1] user sends file manipulation command to physics Reliacne file system on target machine by the file system structure browse view;
5.2] the file system structure browse view sends to file manipulation command the Reliacne file system model that has activated;
5.3] the Reliacne file system model is converted into file manipulation command the Remote File Manipulation that the Reliacne file system model provides, and call Reliance remote file service unit and send Remote File Manipulation to file system client;
5.4] file system client sends to resolve command module by Target agent with Remote File Manipulation with Remote File Manipulation;
5.5] Remote File Manipulation that goes out according to the resolve command module parses of command execution module, call the file operation API of physics Reliance file system, after carrying out physics Reliance file operation, operating result is replied module by result send to Target agent;
5.6] Target agent feeds back to host telefile browser subsystem with operating operation, and in the file system structure browse view, show;
6] disconnect:
6.1] user sends and disconnect order to physics Reliacne file system on target machine by the file system structure browse view;
6.2] the Reliacne file system model calls the file system Connection Service and will disconnect order and send to Target agent by file system client;
6.3] Target agent sends to the resolve command module with bind command, carries out bind command, and execution result is returned to Target agent, by Target agent, feeds back to host telefile browser subsystem;
6.4] host telefile browser subsystem is according to the feedback result of Target agent, nullifies the Reliacne file system model, makes its service state become the disarmed state that does not connect, and closes long-range connection link.
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