CN111143267A - Hot plug method and system based on Linux system disk - Google Patents
Hot plug method and system based on Linux system disk Download PDFInfo
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- CN111143267A CN111143267A CN201911413688.5A CN201911413688A CN111143267A CN 111143267 A CN111143267 A CN 111143267A CN 201911413688 A CN201911413688 A CN 201911413688A CN 111143267 A CN111143267 A CN 111143267A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1405—Saving, restoring, recovering or retrying at machine instruction level
- G06F11/141—Saving, restoring, recovering or retrying at machine instruction level for bus or memory accesses
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Abstract
The invention provides a hot plug method and a system based on a Linux system disk, wherein the system comprises the Linux system disk and terminal equipment, and a Linux operating system and an application program are installed in the Linux system disk; the method comprises the following steps: after the communication connection between the Linux system disk and the terminal equipment is established, after the Linux system disk is started, the processor generates an equipment object corresponding to the Linux system disk; the processor monitors whether the Linux system disk has a response in real time through a polling mechanism, if so, the read-write I/O interface between the processor and the Linux system disk is frozen, the original equipment object is released, and when the response is monitored again, the read-write I/O interface between the processor and the Linux system disk is unfrozen, and the equipment object is regenerated; binding a file system of a memory with a bottom physical disk of a Linux system disk through a device object; and the application program of the Linux system disk performs read-write operation on the bottom physical disk of the Linux system disk by calling the file system. The invention realizes the hot plug scheme based on the Linux system disk.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a hot plug method and a hot plug system based on a Linux system disk.
Background
With the rapid development of information technology and internet technology and the rapid advancement of mobile informatization, mobile office has become an important mode for governments and enterprises. At present, some U disks or hard disks with operating systems (such as Linux operating systems) exist in the market, and when a user needs to perform mobile office work, the U disks or hard disks with the operating systems are connected to an external computer, and then the external network is connected by virtue of a network card carried by the computer, so that the mobile office work and the application can be realized. The operating system of the usb disk or the hard disk is also popular with consumers due to its high convenience.
However, during the use of the operating system of the U disk or the hard disk, the phenomenon of accidental pulling-out often occurs. For example: when the Linux operating system U disk is pulled out, because the disk device object and the volume device object mounted on the disk device object are released, the system cannot be blue-screened, but the resources of the application program stored on the disk cannot be normally operated and read, the U disk is inserted again, the system cannot be restored to a normal operation state, and at the moment, the system can only be restarted, so that inconvenience is brought to the use of a user.
Disclosure of Invention
In order to solve the above problems, it is necessary to provide a method and system for hot plug based on Linux system disk.
The invention provides a hot plug method based on a Linux system disk, which comprises the following steps:
after establishing communication connection between a Linux system disk and terminal equipment, a Linux operating system in the Linux system disk is started by means of a processor and a memory of the terminal equipment; after starting, the processor generates a device object corresponding to the Linux system disk;
the processor monitors whether the Linux system disk responds in real time through a polling mechanism, and judges whether the Linux system disk is disconnected from the terminal equipment in communication or not through a response state;
when the processor fails to monitor the response of the Linux system disk, freezing a read-write I/O interface between the processor and the Linux system disk, and releasing an original equipment object;
when the processor monitors the response of the Linux system disk again, unfreezing a read-write I/O interface between the processor and the Linux system disk, and regenerating an equipment object;
after generating the device object, binding the file system of the memory with the bottom physical disk of the Linux system disk through the device object;
and the application program of the Linux system disk carries out read-write operation on the bottom physical disk of the Linux system disk by calling the file system.
Preferably, after freezing the read-write I/O interface between the processor and the Linux system disk, the method further comprises: and the processor stops sending read-write I/O requests to the Linux system disk.
Preferably, the period of the polling mechanism ranges from 3 to 8 clock cycles.
Furthermore, the terminal equipment further comprises a human-computer interaction module, and the human-computer interaction module is used for realizing data input and interface display functions.
Preferably, the human-computer interaction module comprises any one or more of a display screen, a mouse, a keyboard, a touch screen and a touch pad.
The invention also provides a hot plug system based on the Linux system disk, which comprises the Linux system disk and terminal equipment, wherein the Linux system disk is internally provided with a Linux operating system and an application program;
the Linux system disk is in communication connection with the terminal equipment;
the Linux system disk is used for starting the Linux operating system by borrowing the processor and the memory of the terminal equipment;
the processor is used for generating an equipment object corresponding to the Linux system disk after the Linux operating system is started;
the processor is further configured to monitor whether the Linux system disk responds in real time through a polling mechanism, and judge whether the Linux system disk and the terminal device are disconnected in communication through a response state; when the processor fails to monitor the response of the Linux system disk, freezing a read-write I/O interface between the processor and the Linux system disk, and releasing an original equipment object; when the processor monitors the response of the Linux system disk again, unfreezing a read-write I/O interface between the processor and the Linux system disk, and regenerating an equipment object;
the processor is further configured to bind the file system of the memory with the underlying physical disk of the Linux system disk through the generated device object;
and the application program is used for carrying out read-write operation on the bottom physical disk of the Linux system disk by calling the file system.
Preferably, the Linux system disk is a U disk or a mobile hard disk.
Furthermore, the terminal equipment further comprises a human-computer interaction module, and the human-computer interaction module is used for realizing data input and interface display functions.
Preferably, the human-computer interaction module comprises any one or more of a display screen, a mouse, a keyboard, a touch screen and a touch pad.
Preferably, the terminal equipment is any one or more of a PC, a mobile phone and a PAD
The invention provides a hot plug method and a hot plug system based on a Linux system disk, which are characterized in that the connection state of a terminal device and the Linux system disk is monitored in real time through a processor of the terminal device, and when the connection of the terminal device and the Linux system disk is interrupted, the terminal device is promoted to be in a standby state through freezing a read-write I/O interface; when the terminal device is connected with the Linux system disk again, the binding relationship between the file system and the bottom-layer physical disk of the Linux system disk is reestablished, so that a hot plug scheme based on the Linux system disk is realized, and the operation process does not need to restart the terminal device, so that adverse effects on the use of a user cannot be caused.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart illustrating a hot plug method based on a Linux system disk according to the present invention;
FIG. 2 shows a block diagram of a hot plug system based on a Linux system disk according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
FIG. 1 shows a flow chart of a hot plug method based on a Linux system disk according to the present invention.
As shown in fig. 1, a first aspect of the present invention provides a hot plug method based on a Linux system disk, where the method includes the following steps:
s101, establishing communication connection between a Linux system disk and terminal equipment, and starting a Linux operating system in the Linux system disk by using a processor and a memory of the terminal equipment;
s102, the processor generates a device object corresponding to the Linux system disk;
s103, the processor monitors whether the Linux system disk responds in real time through a polling mechanism, and judges whether the Linux system disk and the terminal equipment are disconnected in communication or not through a response state;
when the processor fails to monitor the response of the Linux system disk, freezing a read-write I/O interface between the processor and the Linux system disk, and releasing an original equipment object;
when the processor monitors the response of the Linux system disk again, unfreezing a read-write I/O interface between the processor and the Linux system disk, and regenerating an equipment object;
s104, binding the file system of the memory with the bottom physical disk of the Linux system disk through a device object;
and S105, the application program of the Linux system disk performs read-write operation on the bottom physical disk of the Linux system disk by calling the file system.
It can be understood that, when the Linux operating system in the Linux system disk is started, a file system is created in the memory of the terminal device, and the bottom physical disk of the Linux system disk is mounted on the file system, and the file system not only can facilitate the management of the bottom physical disk space by a user, but also is beneficial to the organization and search of bottom data resources, and improves the utilization rate of the bottom physical disk space.
It should be noted that, after the Linux operating system in the Linux system disk is started by using the processor and the memory of the terminal device, the generated device object is created by the processor through a corresponding driver.
According to the embodiment of the invention, a plug connector is arranged outside the Linux system disk, and the Linux system disk is plugged into a socket of the terminal equipment through the plug connector. Preferably, the plug may be any one of a USB interface, a Type-C interface, and a Lightning interface, but is not limited thereto.
It should be noted that, the file system is bound to the underlying physical disk of the Linux system disk by regenerating the device object. In other words, the underlying physical disk of the Linux system disk can be mounted on the file system through the regenerated device object. Specifically, the processor may regenerate the device object through a corresponding driver.
According to an embodiment of the present invention, after freezing the read-write I/O interface between the processor and the Linux system disk, the method further comprises: and the processor stops sending read-write I/O requests to the Linux system disk.
It should be noted that when the processor monitors that the Linux system disk has no response, it may be determined that the Linux system disk and the terminal device are disconnected from each other, and the processor stops sending the read-write request to the Linux system disk and waits for the next reconnection, thereby effectively preventing the loss of the read-request instruction and/or the write-in data.
It should be noted that after the read-write I/O interface between the processor and the Linux system disk is thawed, the processor may send a read-write I/O request to the Linux system disk again without restarting the terminal device.
Preferably, in the embodiment of the present invention, the period of the polling mechanism may range from 3 to 8 clock cycles. But is not limited thereto.
It should be noted that the clock cycle is a fixed-length time interval defined by a clock of the processor, and is the minimum time unit in which the processor operates. Preferably, the single clock period may be set to a range of 1 nanosecond to 10 nanoseconds. But is not limited thereto.
Preferably, the Linux system disk may be a usb disk or a removable hard disk. But is not limited thereto.
According to the embodiment of the invention, the terminal equipment further comprises a human-computer interaction module, and the human-computer interaction module is used for realizing data input and interface display functions. Specifically, the human-computer interaction module may include any one or more of a display screen, a mouse, a keyboard, a touch screen, and a touch pad. But is not limited thereto.
It should be noted that, after freezing the read-write I/O interface between the processor and the Linux system disk, the human-computer interaction module may still be normally enabled, and the user may still interact with the processor through the human-computer interaction module, and as for the interactive data, the processor may not write into the bottom physical disk of the Linux system disk.
Preferably, the terminal device is any one or more of a PC, a mobile phone, and a PAD. But is not limited thereto.
FIG. 2 shows a block diagram of a hot plug system based on a Linux system disk according to the present invention.
As shown in fig. 2, a second aspect of the present invention further provides a hot plug system based on a Linux system disk, where the system includes the Linux system disk and a terminal device, the Linux system disk is equipped with a Linux operating system and an application program, the Linux system disk and the terminal device are in communication connection, and the Linux system disk starts the Linux operating system in the Linux system disk by using a processor and a memory of the terminal device, and generates a device object; the processor monitors whether the Linux system disk responds in real time through a polling mechanism, and judges whether the Linux system disk is disconnected from the terminal equipment in communication or not through a response state;
when the processor fails to monitor the response of the Linux system disk, freezing a read-write I/O interface between the processor and the Linux system disk, and releasing an original equipment object; when the processor monitors the response of the Linux system disk again, unfreezing a read-write I/O interface between the processor and the Linux system disk, and regenerating an equipment object;
binding the file system of the memory with the bottom physical disk of the Linux system disk through a device object; and the application program calls the file system to perform read-write operation on the bottom physical disk of the Linux system disk.
It can be understood that, when the Linux operating system in the Linux system disk is started, a file system is created in the memory of the terminal device, and the bottom physical disk of the Linux system disk is mounted on the file system, and the file system not only can facilitate the management of the bottom physical disk space by a user, but also is beneficial to the organization and search of bottom data resources, and improves the utilization rate of the bottom physical disk space.
It should be noted that, after the Linux operating system in the Linux system disk is started by using the processor and the memory of the terminal device, the generated device object is created by the processor through a corresponding driver.
According to the embodiment of the invention, a plug connector is arranged outside the Linux system disk, and the Linux system disk is plugged into a socket of the terminal equipment through the plug connector. Preferably, the plug may be any one of a USB interface, a Type-C interface, and a Lightning interface, but is not limited thereto.
It should be noted that, the file system is bound to the underlying physical disk of the Linux system disk by regenerating the device object. In other words, the underlying physical disk of the Linux system disk can be mounted on the file system through the regenerated device object. Specifically, the processor may regenerate the device object through a corresponding driver.
According to the embodiment of the invention, after freezing the read-write I/O interface between the processor and the Linux system disk, the processor stops sending the read-write I/O request to the Linux system disk.
It should be noted that when the processor monitors that the Linux system disk has no response, it may be determined that the Linux system disk and the terminal device are disconnected from each other, and the processor stops sending the read-write request to the Linux system disk and waits for the next reconnection, thereby effectively preventing the loss of the read-request instruction and/or the write-in data.
It should be noted that after the read-write I/O interface between the processor and the Linux system disk is thawed, the processor may send a read-write I/O request to the Linux system disk again, and the terminal device does not need to be restarted.
Preferably, the period of the polling mechanism may range from 3 to 8 clock cycles. But is not limited thereto.
It should be noted that the clock cycle is a fixed-length time interval defined by a clock of the processor, and is the minimum time unit in which the processor operates. Preferably, the single clock period may be set to a range of 1 nanosecond to 10 nanoseconds. But is not limited thereto.
Preferably, the Linux system disk may be a usb disk or a removable hard disk. But is not limited thereto.
According to the embodiment of the invention, the terminal equipment further comprises a human-computer interaction module, and the human-computer interaction module is used for realizing data input and interface display functions. Specifically, the human-computer interaction module may include any one or more of a display screen, a mouse, a keyboard, a touch screen, and a touch pad. But is not limited thereto.
It should be noted that, after freezing the read-write I/O interface between the processor and the Linux system disk, the human-computer interaction module may still be normally enabled, and the user may still interact with the processor through the human-computer interaction module, and as for the interactive data, the processor may not write into the bottom physical disk of the Linux system disk.
Preferably, the terminal device is any one or more of a PC, a mobile phone, and a PAD. But is not limited thereto.
The hot plug method and the system based on the Linux system disk provided by the invention monitor the connection state of the terminal equipment and the Linux system disk in real time through the processor of the terminal equipment, and when the connection of the terminal equipment and the Linux system disk is interrupted, the terminal equipment is promoted to be in a standby state by freezing the read-write I/O interface; when the terminal device is connected with the Linux system disk again, the binding relationship between the file system and the bottom-layer physical disk of the Linux system disk is reestablished, so that a hot plug scheme based on the Linux system disk is realized, and the operation process does not need to restart the terminal device, so that adverse effects on the use of a user cannot be caused.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A hot plug method based on a Linux system disk is characterized by comprising the following steps:
after establishing communication connection between a Linux system disk and terminal equipment, a Linux operating system in the Linux system disk is started by means of a processor and a memory of the terminal equipment;
after starting, the processor generates a device object corresponding to the Linux system disk;
the processor monitors whether the Linux system disk responds in real time through a polling mechanism, and judges whether the Linux system disk is disconnected from the terminal equipment in communication or not through a response state;
when the processor fails to monitor the response of the Linux system disk, freezing a read-write I/O interface between the processor and the Linux system disk, and releasing an original equipment object;
when the processor monitors the response of the Linux system disk again, unfreezing a read-write I/O interface between the processor and the Linux system disk, and regenerating an equipment object;
after generating the device object, binding the file system of the memory with the bottom physical disk of the Linux system disk through the device object;
and the application program of the Linux system disk carries out read-write operation on the bottom physical disk of the Linux system disk by calling the file system.
2. The Linux system disk-based hot plug method according to claim 1, wherein after freezing the read-write I/O interface between the processor and the Linux system disk, the method further comprises:
and the processor stops sending read-write I/O requests to the Linux system disk.
3. The Linux system disk-based hot plug method of claim 1, wherein a period of the polling mechanism ranges from 3 to 8 clock cycles.
4. The Linux system disk-based hot plug method as recited in claim 1, wherein the terminal device further comprises a human-computer interaction module, and the human-computer interaction module is configured to implement data input and interface display functions.
5. The Linux system disk-based hot plug method according to claim 4, wherein the human-computer interaction module comprises any one or more of a display screen, a mouse, a keyboard, a touch screen and a touch pad.
6. A hot plug system based on a Linux system disk is characterized by comprising the Linux system disk and terminal equipment, wherein a Linux operating system and an application program are installed in the Linux system disk;
the Linux system disk is in communication connection with the terminal equipment;
the Linux system disk is used for starting the Linux operating system by borrowing the processor and the memory of the terminal equipment;
the processor is used for generating an equipment object corresponding to the Linux system disk after the Linux operating system is started;
the processor is further configured to monitor whether the Linux system disk responds in real time through a polling mechanism, and judge whether the Linux system disk and the terminal device are disconnected in communication through a response state; when the processor fails to monitor the response of the Linux system disk, freezing a read-write I/O interface between the processor and the Linux system disk, and releasing an original equipment object; when the processor monitors the response of the Linux system disk again, unfreezing a read-write I/O interface between the processor and the Linux system disk, and regenerating an equipment object;
the processor is further configured to bind the file system of the memory with the underlying physical disk of the Linux system disk through the generated device object;
and the application program is used for carrying out read-write operation on the bottom physical disk of the Linux system disk by calling the file system.
7. The Linux system disk-based hot plug system of claim 6, wherein the Linux system disk is a usb disk or a removable hard disk.
8. The Linux system disk-based hot plug system of claim 6, wherein the terminal device further comprises a human-computer interaction module, and the human-computer interaction module is configured to implement data input and interface display functions.
9. The Linux system disk-based hot plug system of claim 8, wherein the human-computer interaction module comprises any one or more of a display screen, a mouse, a keyboard, a touch screen, and a touch pad.
10. The Linux system disk-based hot plug system of claim 6, wherein the terminal device is any one or more of a PC, a mobile phone, and a PAD.
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| CN201911413688.5A CN111143267A (en) | 2019-12-31 | 2019-12-31 | Hot plug method and system based on Linux system disk |
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| CN201911413688.5A CN111143267A (en) | 2019-12-31 | 2019-12-31 | Hot plug method and system based on Linux system disk |
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Application publication date: 20200512 |