CN103677989A - Device and method for obtaining multiple systems through linux kernel - Google Patents
Device and method for obtaining multiple systems through linux kernel Download PDFInfo
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- CN103677989A CN103677989A CN201310677376.1A CN201310677376A CN103677989A CN 103677989 A CN103677989 A CN 103677989A CN 201310677376 A CN201310677376 A CN 201310677376A CN 103677989 A CN103677989 A CN 103677989A
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Abstract
The invention discloses a device and method for obtaining multiple systems through a linux kernel. The device comprises a bottom layer module shared by the different systems, a system switching module arranged on the bottom layer module and used for switching the different systems and the different systems arranged on the system switching module. The system switching module comprises a virtual terminal module and an event module. The virtual terminal module comprises multiple virtual terminals used for displaying the different systems and the systems correspond to the virtual terminals one to one. The event module is used for enabling the different systems to have access to a device file of the bottom layer module according to a switching order of a user.
Description
Technical field
The present invention relates to mobile terminal multisystem field, relate in particular to the device and method that a kind of linux of utilization kernel is realized multisystem.
Background technology
Along with scientific and technological development and social progress, increasing smart machine has been come into huge numbers of families, and the intelligent artifacts such as smart mobile phone, Intelligent flat, intelligent television are very easy to people's work and life.At present, on these equipment, generally only has an operating system, such as Android, ios, firefox os etc.As can be on an equipment, two or more operating system be installed simultaneously, will improve greatly user's experience so, make the user just can to experience multiple systems on an equipment, met the demand that user experiences different system.
The Android device hardware of main flow is powerful at present, CPU is double-core and four cores substantially, this also provides solid hardware foundation for making multiple operating system, prior art has also realized the scheme that two kinds of operating systems are installed on an equipment, but existing dual operating systems, as needs switched system, needs restarting systems, the system that could realize is switched, and switches the inconvenience of getting up; And existing dual operating systems easily causes screen to show the problem of two systems, easily causes screen clutter simultaneously.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of linux of utilization kernel to realize the device and method of multisystem, be intended to solve existing multisystem and realize Technology Need and restart and could cause system to switch problem inconvenient and that easily cause screen clutter by switched system.
Technical scheme of the present invention is as follows:
Utilize linux kernel to realize a device for multisystem, wherein, comprising:
For the shared bottom module of different system;
Be arranged on the system handover module for switching on bottom module between different system;
And be arranged on the different system on system handover module;
Described system handover module comprises virtual terminal module and event module;
Described virtual terminal module comprises a plurality of virtual terminals for different system is shown, and system is corresponding one by one with virtual terminal;
Described event module, for according to user's switching command, offers different system by the device file of bottom module and conducts interviews.
The described linux kernel that utilizes is realized the device of multisystem, and wherein, described different system at least comprises the first system and second system, and described the first system is Android system.
The described linux kernel that utilizes is realized the device of multisystem, and wherein, described event module comprises:
Delete cells, for when switching to second system according to user's switching command from Android system, deletes the device file of linux kernel;
Device file node creating unit, for creating new device file node, is used for memory device file;
Reading unit, for the device file node fetch equipment file from new, catches user's operation, and responds.
The described linux kernel that utilizes is realized the device of multisystem, and wherein, described event module also comprises:
Recovery unit, for when switching back to Android system according to user's switching command from second system, recovers deleted device file under linux kernel.
The described linux kernel that utilizes is realized the device of multisystem, and wherein, described switching command is that user specifies hot key to realize by pressing.
The described linux kernel that utilizes is realized the device of multisystem, and wherein, described appointment hot key is Macintosh.
Utilize linux kernel to realize a method for multisystem, wherein, comprise step:
The system handover module that is provided for switching between different system on bottom module;
The application layer of different system is set on system handover module;
A plurality of virtual terminals that are provided for different system to show in system handover module, and system is corresponding one by one with virtual terminal;
When receiving user's switching command, the device file of bottom module is offered to different system and conduct interviews;
And by with system one to one virtual terminal the system after switching is shown.
The described linux kernel that utilizes is realized the method for multisystem, and wherein, the described device file by bottom module offers the step that different system conducts interviews and specifically comprises step:
Inquire about and record the virtual terminal that current system is used, and obtain an idle virtual terminal, by described idle virtual terminal, show.
The described linux kernel that utilizes is realized the method for multisystem, wherein, described different system at least comprises the first system and second system, and described the first system is Android system, and the described device file by bottom module offers the step that different system conducts interviews and specifically comprises:
When switching to second system according to user's switching command from Android system, delete the device file of linux kernel;
Create new device file node, be used for memory device file;
From new device file node fetch equipment file, catch user's operation, and respond.
The described linux kernel that utilizes is realized the method for multisystem, and wherein, the described device file by bottom module offers the step that different system conducts interviews and also comprises:
When switching back to Android system according to user's switching command from second system, recover deleted device file under linux kernel.
Beneficial effect: the present invention by arranging system handover module on bottom module, and virtual terminal module and event module be set in system handover module, by this event module, make different system can share a kernel, and can make the system responses user's of current use operation, other system can not respond simultaneously; By this virtual terminal module, different system is shown, thereby avoided a plurality of systems on screen, to show the problem of the screen clutter causing simultaneously.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that a kind of linux of utilization kernel of the present invention is realized the device preferred embodiment of multisystem.
Fig. 2 is the structured flowchart of event module in the present invention.
Fig. 3 is the process flow diagram that a kind of linux of utilization kernel of the present invention is realized the method preferred embodiment of multisystem.
Fig. 4 is the process flow diagram that a kind of linux of utilization kernel of the present invention is realized the method specific embodiment of multisystem.
Embodiment
The invention provides a kind of linux of utilization kernel and realize the device and method of multisystem, for making object of the present invention, technical scheme and effect clearer, clear and definite, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of linux of utilization kernel provided by the invention is realized the device of multisystem, and it comprises:
For the shared bottom module of different system;
Be arranged on the system handover module for switching on bottom module between different system;
And be arranged on the different system on system handover module;
Described system handover module comprises virtual terminal module and event module;
Described virtual terminal module comprises a plurality of virtual terminals for different system is shown, and system is corresponding one by one with virtual terminal;
Described event module, for according to user's switching command, offers different system by the device file of bottom module and conducts interviews.
Principle of the present invention is on the basis of linux kernel, to set up a new system (certainly can a more than new system), new system and original system are shared a linux kernel, this just can reach the object of fast switching system, because these two systems all have same core, so do not need to restart just, can not switch to another system, switching is got up very convenient.Meanwhile, because the event module in the present invention can offer the device file of bottom module according to user's switching command the application layer access of different system, so avoided two systems to show the problem that causes screen clutter on screen simultaneously.
With a specific embodiment, device of the present invention is specifically described below.
As shown in Figure 1, this device comprises: for web os system and the shared bottom module of Android system, for carry out the system handover module of system switching between web os system and Android system, be arranged on the different system on system handover module.Bottom module comprises linux kernel, file system and various driving, by this system handover module, two different isolation of systems are come, on system handover module, be exactly different systems: Android system and web os system, these two systems are shared linux kernel, driving and a file system, because linux kernel is a system of increasing income, so can modify according to demand of the present invention by revising its code, realize dual system and switch.
Owing to moving two systems on a kernel, can cause two systems to be shown to screen causes system to show chaotic problem simultaneously, in order to address the above problem, virtual terminal module in the present embodiment is provided with a plurality of virtual terminals (being figure virtual terminal) for different system is shown, and system is corresponding one by one with virtual terminal.Like this each virtual terminal is treated as to a virtual screen out, different systems is used different virtual terminals, for example on a virtual terminal, draw, can't have influence on the operation such as draw on other virtual terminal, so two systems operate in respectively the problem that can solve screen display confusion under different virtual terminals.
If the virtual terminal that Android system is used is numbered 7, web os system use numbering is not 7 virtual terminal so, for example, be numbered 1.When system starts, acquiescence is to be switched on virtual terminal 7 to show, also shows Android system, when user needs switched system, only need be switched to virtual terminal 1, show web os system, when user need to be switched back Android system, then switch back virtual terminal 7.
The device drives file path of virtual terminal is /dev/tty only need operate this file, and by calling ioctl function (for send the function of control and configuration order to equipment), can realize the object of switching virtual terminal.Because linux kernel is maximum, support 63 virtual terminals, so 63 systems can be installed on linux kernel in theory simultaneously.
In the present embodiment, it has the input operation function that reads user event module, and user's operational order can be passed to upper strata, transfers to upper strata to respond processing.The function of event module needs the Input Driver(input of linux kernel to drive) support.In linux kernel, any equipment (peripheral hardware input equipment) comprises that telepilot, mouse etc. are all treated as file and visit, file with event beginning under path/dev/input/ is exactly device file, only need read these device files, and leave in a queue, and read by the application layer on upper strata, make corresponding processing, can complete corresponding function, so the dev equipment under utilize exactly/dev/input/ of Android system reads user's input operation.In the present invention, in order to isolate different system, as shown in Figure 2, in event module 100, be provided with:
Delete cells 110, for when switching to second system according to user's switching command from Android system, deletes the device file of linux kernel; For example, when user switches to web os system by system from Android system, just delete the device file of linux kernel, delete device file relevant under dev/input/;
Device file node creating unit 120, for creating new device file node, is used for memory device file; Under other paths, create new device file node, be used for memory device file;
More preferably, described switching command is that user specifies hot key to realize by pressing, be that user is that feasible system switches by pressing certain appointment hot key, for different equipment, it specifies hot key possibility different, so need carry out different definition to different equipment, for example, for mobile phone be different with its definition of TV of telepilot.Preferred, described appointment hot key is Macintosh, can avoid like this user's mistake by or mistake by the problem that affect user use.Specify the definition of hot key, can in linux kernel, revise event-driven, accept corresponding specified button and be switched in different systems.
The code file path of revising is /kernel/drivers/input/input.c, in this document, to increase specifying the reception of hot key and processing function.When receiving to switch, specify after hot key, the interface of calling system handover module goes to carry out system switching.
Above-described embodiment is to take equipment Android system and web os system are installed simultaneously describe as example, obviously, the present invention also can install popular other system at present, such as systems such as firefox web os, or based on existing hardware foundation, three or above system are installed simultaneously, can realize equally the object of three system blocked operations.In addition, in the present invention, if certain system on equipment breaks down, also switch to another one system and get on to repair, this has also facilitated user to solve fault.
Based on said apparatus, the present invention also provides a kind of linux of utilization kernel to realize the method for multisystem, and as shown in Figure 3, it comprises step:
S101, the system handover module that is provided for switching between different system on bottom module;
S102, the application layer of different system is set on system handover module;
S103, a plurality of virtual terminals that are provided for different system to show in system handover module, and system is corresponding one by one with virtual terminal;
S104, when receiving user's switching command, the device file of bottom module is offered to different system and conducts interviews;
S105 and by with system one to one virtual terminal the system after switching is shown.
Further, described step S104 specifically comprises:
Inquire about and record the virtual terminal that current system is used, and obtain an idle virtual terminal, by described idle virtual terminal, show.
Further, described different system at least comprises the first system and second system, and described the first system is Android system, and described step S104 specifically comprises:
When switching to second system according to user's switching command from Android system, delete the device file of linux kernel;
Create new device file node, be used for memory device file;
From new device file node fetch equipment file, catch user's operation, and respond.
Further, described step S104 also comprises:
When switching back to Android system according to user's switching command from second system, recover deleted device file under linux kernel.
Provide one to utilize linux kernel to realize the method specific embodiment of multisystem below, as shown in Figure 4, it comprises:
Start;
S201, user's start;
S202, acquiescence enter into Android system;
S203, while receiving user's switching command, prepare to switch to second system;
S204, kernel receive hot key, start handover process;
S205, inquire about the virtual terminal that current Android system is used, and record its numbering, inquire about an idle virtual terminal simultaneously, and switch to this free time virtual terminal;
S206, delete the device file of linux kernel, create new device file node simultaneously, be used for memory device file;
S207, call the initialize process of second system, and give second system by control;
S208, when user presses the hot key that switches back Android system, the virtual terminal of the Android system of record before using;
S209, recover the device file of original linux kernel, delete the device file that current second system is used simultaneously;
Finish.
Concrete ins and outs existing detailed description in detail in method above about said method.
In sum, the present invention by arranging system handover module on bottom module, and virtual terminal module and event module be set in system handover module, by this event module, make different system can share a kernel, and can make the system responses user's of current use operation, other system can not respond simultaneously; By this virtual terminal module, different system is shown, thereby avoided a plurality of systems on screen, to show the problem of the screen clutter causing simultaneously.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. utilize linux kernel to realize a device for multisystem, it is characterized in that, comprising:
For the shared bottom module of different system;
Be arranged on the system handover module for switching on bottom module between different system;
And be arranged on the different system on system handover module;
Described system handover module comprises virtual terminal module and event module;
Described virtual terminal module comprises a plurality of virtual terminals for different system is shown, and system is corresponding one by one with virtual terminal;
Described event module, for according to user's switching command, offers different system by the device file of bottom module and conducts interviews.
2. the linux of utilization kernel according to claim 1 is realized the device of multisystem, it is characterized in that, described different system at least comprises the first system and second system, and described the first system is Android system.
3. the linux of utilization kernel according to claim 2 is realized the device of multisystem, it is characterized in that, described event module comprises:
Delete cells, for when switching to second system according to user's switching command from Android system, deletes the device file of linux kernel;
Device file node creating unit, for creating new device file node, is used for memory device file;
Reading unit, for the device file node fetch equipment file from new, catches user's operation, and responds.
4. the linux of utilization kernel according to claim 2 is realized the device of multisystem, it is characterized in that, described event module also comprises:
Recovery unit, for when switching back to Android system according to user's switching command from second system, recovers deleted device file under linux kernel.
5. the linux of utilization kernel according to claim 2 is realized the device of multisystem, it is characterized in that, described switching command is that user specifies hot key to realize by pressing.
6. the linux of utilization kernel according to claim 2 is realized the device of multisystem, it is characterized in that, described appointment hot key is Macintosh.
7. utilize linux kernel to realize a method for multisystem, it is characterized in that, comprise step:
The system handover module that is provided for switching between different system on bottom module;
The application layer of different system is set on system handover module;
A plurality of virtual terminals that are provided for different system to show in system handover module, and system is corresponding one by one with virtual terminal;
When receiving user's switching command, the device file of bottom module is offered to different system and conduct interviews;
And by with system one to one virtual terminal the system after switching is shown.
8. the linux of utilization kernel according to claim 7 is realized the method for multisystem, it is characterized in that, the described device file by bottom module offers the step that different system conducts interviews and specifically comprises step:
Inquire about and record the virtual terminal that current system is used, and obtain an idle virtual terminal, by described idle virtual terminal, show.
9. the linux of utilization kernel according to claim 8 is realized the method for multisystem, it is characterized in that, described different system at least comprises the first system and second system, described the first system is Android system, and the described device file by bottom module offers the step that different system conducts interviews and specifically comprises:
When switching to second system according to user's switching command from Android system, delete the device file of linux kernel;
Create new device file node, be used for memory device file;
From new device file node fetch equipment file, catch user's operation, and respond.
10. the linux of utilization kernel according to claim 8 is realized the method for multisystem, it is characterized in that, the described device file by bottom module offers the step that different system conducts interviews and also comprises:
When switching back to Android system according to user's switching command from second system, recover deleted device file under linux kernel.
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| CN112799521A (en) * | 2021-03-29 | 2021-05-14 | 上海捷勃特机器人有限公司 | Electronic device and method for operating electronic device |
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