CN108563492B - Data acquisition method, virtual machine and electronic equipment - Google Patents
Data acquisition method, virtual machine and electronic equipment Download PDFInfo
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- CN108563492B CN108563492B CN201810426287.2A CN201810426287A CN108563492B CN 108563492 B CN108563492 B CN 108563492B CN 201810426287 A CN201810426287 A CN 201810426287A CN 108563492 B CN108563492 B CN 108563492B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45579—I/O management, e.g. providing access to device drivers or storage
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45595—Network integration; Enabling network access in virtual machine instances
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Abstract
The embodiment of the invention provides a data acquisition method, a virtual machine and electronic equipment, wherein a second virtual machine does not have access authority for accessing data stored in the second electronic equipment, a first virtual machine has access authority for accessing the data, if the second virtual machine needs to acquire the data in the second electronic equipment, the data needs to be acquired through the first virtual machine, and after receiving a first data reading request sent by the second virtual machine, the first virtual machine can acquire a preset communication medium between the first virtual machine and the second electronic equipment; and generating a second data read request; sending the second data reading request to the second electronic equipment through a preset communication medium; because the second data reading request carries the communication address of the second virtual machine, the second electronic device can directly send the data to be read to the second virtual machine without transmitting the data to be read through the first virtual machine, and thus network resources are saved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a data acquisition method, a virtual machine and electronic equipment.
Background
Virtualization refers to virtualizing one electronic device into a plurality of virtual machines by using virtualization technology. The virtual machines in different electronic devices or different virtual machines in the same electronic device may communicate, for example, the electronic device storing data sets different access permissions for different virtual machines, for example, the set storage areas accessible by different virtual machines are different, and therefore, when one virtual machine reads data from the electronic device storing data, it may need to obtain the data through other virtual machines having corresponding access permissions. A method for reading data between virtual machines will be described below with a specific example.
Assuming that the virtual machine vm1 needs to read data from the electronic device storing the data, but the virtual machine vm1 does not have access right to access the electronic device, or does not have access right to access a storage area storing the data to be read in the electronic device, and the virtual machine vm2 has the access right, the virtual machine vm1 may send a request for reading the data to the virtual machine vm2, and then the virtual machine vm2 obtains the data to be read from the electronic device; and the data to be read is sent by virtual machine vm2 to virtual machine vm 1.
In summary, the transmission path of the read data request is: virtual machine vm1 → virtual machine vm2 → electronic device; the transmission path of the data to be read is as follows: electronic device → virtual machine vm2 → virtual machine vm 1; the transmission mode of the data to be read occupies a large amount of network resources.
Disclosure of Invention
In view of this, the present invention provides a data obtaining method, a virtual machine, and an electronic device, so as to overcome the problem that a transmission mode of data to be read occupies a large amount of network resources in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a data acquisition method is applied to a first virtual machine in first electronic equipment, and comprises the following steps:
receiving a first data reading request, where the first data reading request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
acquiring a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
generating a second data reading request based on the position of the data to be read in the second electronic device and the communication address of the second virtual machine;
sending the second data reading request to the second electronic equipment through the preset communication medium; so that the second electronic device directly sends the data to be read to the second virtual machine.
A data acquisition method is applied to a second electronic device, and comprises the following steps:
obtaining a second data read request sent by a first virtual machine through a preset communication medium, wherein the second data read request comprises: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment at least through the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and at least enables the first virtual machine to access;
acquiring the data to be read based on the position of the data to be read in the first storage area;
and sending the data to be read to the second virtual machine based on the communication address of the second virtual machine.
A first virtual machine, comprising:
a first receiving module, configured to receive a first data read request, where the first data read request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
the first obtaining module is used for obtaining a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
the first generation module is used for generating a second data reading request based on the position of the data to be read in the second electronic equipment and the communication address of the second virtual machine;
the first sending module is used for sending the second data reading request to the second electronic equipment through the preset communication medium; so that the second electronic device directly sends the data to be read to the second virtual machine.
A second virtual machine, comprising;
a first obtaining module, configured to obtain, through a preset communication medium, a second data read request sent by a first virtual machine, where the second data read request includes: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment through at least the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and enables at least the first virtual machine to access;
the second acquisition module is used for acquiring the data to be read based on the position of the data to be read in the first storage area;
and the first sending module is used for sending the data to be read to the second virtual machine based on the communication address of the second virtual machine.
A first electronic device, comprising:
a memory for storing a program;
a processor configured to execute the program, the program specifically configured to:
receiving a first data reading request, where the first data reading request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
acquiring a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
generating a second data reading request based on the position of the data to be read in the second electronic device and the communication address of the second virtual machine;
sending the second data reading request to the second electronic equipment through the preset communication medium; so that the second electronic device directly sends the data to be read to the second virtual machine.
A second electronic device, comprising:
a memory for storing a program;
a processor configured to execute the program, the program specifically configured to:
obtaining a second data reading request sent by the first virtual machine through a preset communication medium, wherein the second data reading request comprises: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment through at least the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and enables at least the first virtual machine to access;
acquiring the data to be read based on the position of the data to be read in the first storage area;
and sending the data to be read to the second virtual machine based on the communication address of the second virtual machine.
A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data acquisition method as claimed in any one of the preceding claims, applied to a first virtual machine in a first electronic device.
A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data acquisition method as claimed in any one of the preceding claims, applied in a second electronic device.
As can be seen from the foregoing technical solutions, compared with the prior art, an embodiment of the present invention provides a data obtaining method, where a second virtual machine does not have an access right to access data stored in a second electronic device, a first virtual machine has an access right to access the data stored in the second electronic device, the second virtual machine sends a first data read request to the first virtual machine, where the first data read request includes storage location information of the data to be read and a communication address of the second virtual machine, and the first virtual machine can obtain a preset communication medium between the first virtual machine and the second electronic device based on information of the second electronic device; generating a second data reading request based on the position of the data to be read in the second electronic equipment and the communication address of the second virtual machine; sending a second data reading request to second electronic equipment through a preset communication medium; because the second data reading request carries the communication address of the second virtual machine, the second electronic device can directly send the data to be read to the second virtual machine without transmitting the data to be read through the first virtual machine, and thus network resources are saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a block diagram of one implementation of a data acquisition system provided by an embodiment of the present invention;
fig. 2 is a signaling diagram of an implementation manner of a data acquisition method according to an embodiment of the present invention;
fig. 3 is a flowchart of an implementation manner of generating a second data read request in the data acquisition method according to the embodiment of the present invention;
FIG. 4 is a schematic format diagram of a second data read request according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a relationship between a relative position and an absolute position according to an embodiment of the present invention;
fig. 6 is a signaling diagram of another implementation manner of the data acquisition method according to the embodiment of the present invention;
FIG. 7 is a block diagram of one implementation of a first virtual machine, according to an embodiment of the present invention;
fig. 8 is a structural diagram of an implementation manner of a second virtual machine according to an embodiment of the present invention;
fig. 9 is a block diagram of an implementation manner of a first electronic device according to an embodiment of the present invention;
fig. 10 is a block diagram of an implementation manner of a second electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a data acquisition method which can be realized only by the cooperative work of at least two virtual machines. The at least two virtual machines may belong to the same electronic device or may belong to different electronic devices. The data acquisition method can be applied to a data acquisition system. Fig. 1 is a structural diagram of an implementation manner of a data acquisition system according to an embodiment of the present invention.
The data acquisition system includes: a first electronic device 11, a second electronic device 12, and a third electronic device 13; wherein:
the first virtual machine 111 in the first electronic device 11 has access rights to access data stored in the second electronic device 12. The second electronic device 12 stores data. The second virtual machine 131 in the third electronic device 13 needs to access the data stored by the second electronic device, but the second virtual machine 131 has no right to access the second electronic device 12.
The first electronic device 11 and the second electronic device 12 may be the same electronic device or different electronic devices.
The second virtual machine 131 sends a first data read request to the first virtual machine 111, where the first data read request includes a communication address of the second virtual machine 131; the first virtual machine 111 generates a second data read request based on the first data read request, where the second data read request includes a communication address of the second virtual machine 131; the first virtual machine 111 sends the second data reading request to the third electronic device 13; the third electronic device 13 transmits data directly to the second virtual machine 131.
In an alternative embodiment, sending the first data read request to the first virtual machine 111 by the second virtual machine 131 includes: the second virtual machine 131 may directly send the first data read request to the first virtual machine 111, or the second virtual machine 131 sends the first data read request to the first virtual machine 111 through at least one virtual machine.
As shown in fig. 1, the second electronic device 12 may directly send the data to be read to the second virtual machine 131 without transmitting the data to be read through the first virtual machine 111, thereby saving network resources.
With reference to the data acquisition system shown in fig. 1, the following describes a data acquisition method, and as shown in fig. 2, a signaling diagram of an implementation manner of the data acquisition method provided in the embodiment of the present invention is shown, where the method includes:
step S201: the second virtual machine 131 of the third electronic device sends the first data read request to the first virtual machine 111 in the first electronic device 11 (hereinafter, referred to as the second virtual machine 131 to the first virtual machine 111 for short).
The first data read request includes: storage location information of data to be read and a communication address of the second virtual machine 131.
The storage location information of the data to be read includes: and storing the information of the second electronic equipment of the data to be read, and the position of the data to be read in the second electronic equipment. In an alternative embodiment, storing the location information comprises: the second electronic equipment stores the disk name and the offset position of the data to be read and the length of the data to be read; the communication address includes: an IP (Internet protocol address) address and a port number, or an IP address.
In an alternative embodiment, the format of the first data read request may be as follows:
step S202: the first virtual machine 111 receives a first data reading request, and obtains a preset communication medium between the first virtual machine and the second electronic device based on the information of the second electronic device.
The second electronic device sets different access rights for different virtual machines, for example, different storage areas that can be accessed by different virtual machines. The preset communication medium corresponds to a storage area which the second electronic equipment allows the first virtual machine to access.
In an alternative embodiment, the first virtual machine may access data stored in a plurality of electronic devices (including the second electronic device), and have corresponding preset communication media for different electronic devices.
Step S203: the first virtual machine 111 generates a second data read request based on the location of the data to be read in the second electronic device and the communication address of the second virtual machine.
In an alternative embodiment, the format of the second data read request may be as follows:
step S204: the first virtual machine 111 sends the second data read request to the second electronic device 12 through the preset communication medium.
The predetermined communication medium is indicated by a shaded portion in fig. 2.
Step S205: the second electronic device 12 obtains the data to be read based on the position of the data to be read in the second electronic device, and sends the data to be read to the second virtual machine 131.
In an alternative embodiment, the first electronic device 11 and the second electronic device 12 may be different electronic devices; at this time, the data to be read is stored in the first storage area of the second electronic device 12, and the first storage area is a storage area set for the second electronic device and at least accessible to the first virtual machine 111.
In an alternative embodiment, the first electronic device 11 and the second electronic device 12 belong to the same electronic device; the data to be read is stored in a second storage area of the first electronic device 11, where the second storage area is a storage area set for the first electronic device 11 and at least accessible to the first virtual machine.
In this embodiment of the present invention, the second data read request carries a communication address of the second virtual machine 131, so that the second electronic device can know that the second virtual machine 131 needs to obtain the data to be read, and therefore, the second electronic device can directly send the data to be read to the second virtual machine 131, which does not need to pass through the first virtual machine.
In the prior art, after receiving a first data reading request, a first virtual machine directly obtains data to be read from a second electronic device based on a position of the data to be read in the second electronic device. Therefore, the second electronic device 12 can only transmit the data to be read to the first virtual machine, and the first virtual machine forwards the data to the second virtual machine. Because the first virtual machine cannot carry the communication address of the second virtual machine in the second data read request.
The following describes in detail how the embodiment of the present invention overcomes the difficulties in the prior art, and a process of generating a second data read request carrying a communication address of a second virtual machine.
As shown in fig. 3, a flowchart of an implementation manner of generating a second data read request in the data obtaining method provided in the embodiment of the present invention is shown, where the method includes:
step S301: the first virtual machine 111 splits the communication address of the second virtual machine in the user mode to obtain a preset number of sub-communication addresses.
Step S302: the first virtual machine 111 stores the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule.
In the embodiment of the present invention, the number of the preset variables may be multiple, and the first position of each preset variable carries part of the position information of the data to be read. For example, the number of the preset variables is 2, and the preset variables are an offset position variable (denoted by offset) and a length variable (denoted by length) of the data to be read, respectively.
The preset number is related to the number of preset variables, and the preset number is less than or equal to the number of preset variables.
In an alternative embodiment, assuming that the preset variable is an offset position variable of the data to be read and the length variable of the data to be read, assuming that the preset number is 2, assuming that the communication address of the second virtual machine 131 is an IP address — 175.188.188.100, assuming that the IP address is divided into: 175.188 and 188.100.
In an alternative embodiment, the preset rule may be that the sub communication address 175.188 of the IP address of the second virtual machine is stored in the second location of the offset variable, and the sub communication address 188.100 of the IP address of the second virtual machine is stored in the second location of the length, as shown in fig. 4, which is a schematic format diagram of the second data read request provided in the embodiment of the present invention.
The Offset variable comprises at least two parts, a first position stores the Offset position of the data to be read, and a second position stores the sub communication address 175.188 of the IP address; the length variable includes at least two parts, a first position storing a length variable of data to be read, and a second position storing a sub communication address 188.100 of the IP address.
The first position shown in FIG. 4 is prior to the second position, which in an alternative embodiment may be prior to the first position; in an alternative embodiment, the first location and the second location may not be adjacent.
The "preset rule" in the embodiment of the present invention is used to indicate the storage location of each sub-communication address of the second virtual machine, or is used to indicate the storage location of each sub-communication address of the second virtual machine and the sequential relationship between each sub-communication address.
Step S303: the first virtual machine 111 calls a read interface for transmitting the at least one preset variable, and sends the at least one preset variable to a kernel mode program for controlling access to hardware resources.
The storage area for storing the data to be read is a hardware storage area, and therefore, a standard read interface needs to be called to transmit the at least one preset variable to a kernel mode program for controlling access to hardware resources. Because the standard read interface can only transmit the preset variable but cannot transmit the communication address of the second virtual machine, the embodiment of the invention skillfully splits the communication address of the second virtual machine and stores the split communication address into the preset variable, thereby realizing the transmission of the communication address of the second virtual machine through the standard read interface under the condition that the communication address is not found by the standard read interface. That is, the embodiment of the present invention "disguises" the communication address of the second virtual machine as a preset variable.
Step S304: the first virtual machine 111 obtains the communication address of the second virtual machine and the location information of the data to be read in a kernel mode based on the at least one preset variable and the preset rule.
After the communication address of the second virtual machine passes through the standard reading interface, the communication address of the second virtual machine and the position information of the data to be read can be restored.
The position of the communication address of the second virtual machine in the preset variable is known through the preset rule, and if the communication address of the second virtual machine is divided into a plurality of sub-communication addresses, the sequence among the sub-communication addresses is known through the preset rule, so that the communication address of the second virtual machine can be restored.
Step S305: the first virtual machine 111 generates the second data read request based on the communication address of the second virtual machine and the location of the data to be read in the second electronic device.
The first virtual machine 11 may obtain, based on the position of the data to be read in the second electronic device, a block address of at least one physical block where the data to be read is located, an offset address corresponding to each of the at least one physical block, and length information corresponding to each of the at least one physical block.
In an alternative embodiment, it is assumed that the data to be read is located in 3 physical blocks, and the 3 physical blocks are physical block 1, physical block 2, and physical block 3, respectively, where the block addresses of the physical block 1, the physical block 2, and the physical block 3 are: id1, id2, and id 3; suppose that the offset address offset1 of physical block 1 and the length of length1 are part of the data to be read; the offset address offset2 of physical block 2 and the length of length2 are part of data to be read; the offset address offset3 of physical block 3 and the length of length3 are part of the data to be read.
In an alternative embodiment, the format of the second data read request may be as follows:
in this embodiment of the present invention, after receiving the second data read request, the second electronic device 12 may obtain the data to be read based on the second data read request, and in an optional embodiment, if the offset address carried by the second data read request is relative to the first virtual machine 111 that can access the first storage area belonging to the second electronic device 12, the second electronic device 12 further needs to obtain the absolute position of the data to be read in the second electronic device based on the relative position of the data to be read in the first storage area. Fig. 5 is a schematic diagram of a relationship between a relative position and an absolute position according to an embodiment of the present invention.
As shown in fig. 5, it is assumed that the storage area of the second electronic device 12 for storing data is the storage area 51, and the first storage area 52 is a partial storage area of the storage area 51. If the offset position 53 and the length relative to the first storage area 52 carried by the second data read request are directly used as the offset position relative to the storage area 51, data with a corresponding length starting from the offset position 54 relative to the storage area 51 as shown in fig. 5 is obtained, as shown by the hatching 1, while the position of the data to be read actually obtained in the embodiment of the present invention is shown by the hatching 2. It is therefore necessary to convert the relative position into an absolute position.
The following second data read request is taken as an example for explanation:
the offset position 1 of the data to be read in the physical block 1 needs to be converted into the absolute position 1 of the data to be read in the storage area 51 of the second electronic device; converting the offset position 2 of the data to be read in the physical block 2 into the absolute position 2 of the data to be read in the storage area 51 of the second electronic device; the offset position 3 of the data to be read in the physical block 3 is converted into the absolute position 3 of the data to be read in the memory area 51 of the second electronic device.
The second electronic device 12 obtains the data to be read based on the absolute position of the data to be read in the second electronic device.
In an optional embodiment, since data is exchanged among the first virtual machine 111, the second virtual machine 131, and the second electronic device 12, in order to characterize that the data is for the same data obtaining operation, the transaction identifier (for example, the transaction ID described above) is included in each of the first data read request, the second data read request, and the data to be read fed back to the second virtual machine 131 by the second electronic device 12; the first data read request, the second data read request and the data to be read fed back to the second virtual machine 131 by the second electronic device 12, which correspond to the same data obtaining operation, all include the same thing identifier.
In an optional embodiment, in order to avoid that the second virtual machine 131 receives data to be read sent by the "fake" second electronic device, after receiving the data to be read, the second virtual machine 131 also needs to wait for a response message sent by the first virtual machine 111, and after receiving the response message sent by the first virtual machine 111, the second virtual machine 131 determines that the receiving of the data to be read is completed. Fig. 6 is a signaling diagram of another implementation manner of the data acquisition method according to the embodiment of the present invention, where the method includes the method shown in fig. 2, and the method further includes:
step S601: the second electronic device sends a first reply message to the first virtual machine 111, the first reply message including: the message used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier.
Step S602: after receiving the first response message, the first virtual machine 111 generates a second response message, where the second response message includes: the message used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier.
Step S603: first virtual machine 111 sends the second reply message to second virtual machine 131.
As shown in fig. 7, a structure diagram of an implementation manner of a first virtual machine is provided for the embodiment of the present invention, where the first virtual machine includes:
a first receiving module 71, configured to receive a first data read request, where the first data read request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
a first obtaining module 72, configured to obtain a preset communication medium between the first virtual machine and the second electronic device based on the information of the second electronic device;
a first generating module 73, configured to generate a second data reading request based on a location of the data to be read in the second electronic device and a communication address of the second virtual machine;
a first sending module 74, configured to send the second data read request to the second electronic device through the preset communication medium; so that the second electronic device directly sends the data to be read to the second virtual machine.
In an alternative embodiment, the location information of the data to be read is carried in a first location of at least one preset variable, and the first generating module 73 includes:
the first obtaining unit is used for splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
the storage unit is used for respectively storing the preset number of the sub-communication addresses in a second position of at least one preset variable according to a preset rule;
the sending unit is used for calling a read interface used for transmitting the at least one preset variable and sending the at least one preset variable to a kernel mode program used for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
In an optional embodiment, the communication address of the second virtual machine includes an IP address of the second virtual machine, or the communication address of the second virtual machine includes an IP address and a port number of the second virtual machine.
In an optional embodiment, the first electronic device and the second electronic device are different electronic devices; the data to be read is stored in a first storage area of the second electronic device, and the first storage area is a storage area which is set by the second electronic device and at least enables the first virtual machine to access;
or the like, or a combination thereof,
the first electronic equipment and the second electronic equipment belong to the same electronic equipment; the data to be read is stored in a second storage area of the first electronic device, and the second storage area is a storage area which is set by the first electronic device and at least enables the first virtual machine to access.
In an optional embodiment, the first data read request further comprises a transaction identifier for characterizing the transaction corresponding to the first data read request; the second data read request further includes the transaction identification; further comprising:
a second receiving module, configured to receive a first response message fed back by the second electronic device, where the first response message includes: the message is used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier;
a second generating module, configured to generate a second response message, where the second response message includes: the message is used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier;
and the second sending module is used for sending the second response message to the second virtual machine.
As shown in fig. 8, a structure diagram of an implementation manner of a second virtual machine provided in the embodiment of the present invention is provided, where the second virtual machine includes:
a first obtaining module 81, configured to obtain, through a preset communication medium, a second data read request sent by the first virtual machine, where the second data read request includes: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment at least through the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and at least enables the first virtual machine to access;
a second obtaining module 82, configured to obtain the data to be read based on a position of the data to be read in the first storage area;
and a first sending module 83, configured to send the data to be read to the second virtual machine based on the communication address of the second virtual machine.
In an optional embodiment, the second obtaining module includes:
a first obtaining unit, configured to obtain an absolute position of the data to be read in the second electronic device based on a relative position of the data to be read in the first storage area;
and the second acquisition unit is used for acquiring the data to be read based on the absolute position of the data to be read in the second electronic equipment.
In an optional embodiment, the second data read request includes a transaction identifier for characterizing a transaction corresponding to the second data read request, and further includes:
a generating module, configured to generate a first reply message, where the first reply message includes: the message is used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier;
and the second sending module is used for sending the first response messages to the first virtual machines respectively.
As shown in fig. 9, a structure diagram of an implementation manner of a first electronic device provided in an embodiment of the present invention is shown, where the first electronic device includes:
a memory 91 for storing a program;
a processor 92 configured to execute the program, the program being specifically configured to:
receiving a first data reading request, where the first data reading request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
acquiring a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
generating a second data reading request based on the position of the data to be read in the second electronic device and the communication address of the second virtual machine;
sending the second data reading request to the second electronic equipment through the preset communication medium; so that the second electronic device directly sends the data to be read to the second virtual machine.
The processor 92 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention.
Optionally, the first electronic device may further include a communication bus 93 and a communication interface 94, where the memory 91, the processor 92, and the communication interface 94 complete communication with each other through the communication bus 93;
alternatively, the communication interface 94 may be an interface of a communication module, such as an interface of a GSM module.
As shown in fig. 10, a structure diagram of an implementation manner of a second electronic device provided in an embodiment of the present invention is provided, where the second electronic device includes:
a memory 1001 for storing a program;
a processor 1002 configured to execute the program, the program being specifically configured to:
obtaining a second data reading request sent by the first virtual machine through a preset communication medium, wherein the second data reading request comprises: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment through at least the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and enables at least the first virtual machine to access;
acquiring the data to be read based on the position of the data to be read in the first storage area;
and sending the data to be read to the second virtual machine based on the communication address of the second virtual machine.
The processor 1002 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention.
Optionally, the second electronic device may further include a communication bus 1003 and a communication interface 1004, where the memory 1001, the processor 1002, and the communication interface 1004 complete mutual communication through the communication bus 1003;
alternatively, the communication interface 1004 may be an interface of a communication module, such as an interface of a GSM module.
A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data acquisition method as claimed in any one of the preceding claims, applied to a first virtual machine in a first electronic device.
A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data acquisition method as any one of the above described methods applied in a second electronic device.
Finally, it is also noted that, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring that such terms be used to distinguish one entity or action from another entity or action
Or imply any actual relationship or order between such entities or operations. Furthermore, it is possible to provide a liquid crystal display device,
the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A data acquisition method is applied to a first virtual machine in first electronic equipment, and comprises the following steps:
receiving a first data reading request, where the first data reading request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
acquiring a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
generating a second data reading request based on the position of the data to be read in the second electronic equipment and the communication address of the second virtual machine;
sending the second data reading request to the second electronic device through the preset communication medium, so that the second electronic device directly sends the data to be read to the second virtual machine;
the location information of the data to be read is carried in a first location of at least one preset variable, and the generating a second data read request includes:
splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
respectively storing the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule; a first position of each preset variable bears partial position information of the data to be read, and a second position of each preset variable bears a sub communication address of the data to be read;
calling a read interface for transmitting the at least one preset variable, and sending the at least one preset variable to a kernel mode program for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read; the preset rule is used for indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine, or indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine and the sequence relation between the sub-communication addresses;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
2. The data acquisition method according to claim 1,
the first electronic device and the second electronic device are different electronic devices; the data to be read is stored in a first storage area of the second electronic device, and the first storage area is a storage area which is set by the second electronic device and at least enables the first virtual machine to access;
or the like, or, alternatively,
the first electronic device and the second electronic device belong to the same electronic device; the data to be read is stored in a second storage area of the first electronic device, and the second storage area is a storage area which is set for the first electronic device and at least enables the first virtual machine to access.
3. The data acquisition method of claim 1, wherein the first data read request further comprises a transaction identifier for characterizing the transaction corresponding to the first data read request; the second data read request further includes the transaction identification; the data acquisition method further comprises:
receiving a first response message fed back by the second electronic device, wherein the first response message comprises: the message is used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier;
generating a second reply message, the second reply message comprising: the message is used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier;
and sending the second response message to the second virtual machine.
4. A data acquisition method, applied to a second electronic device, the data acquisition method comprising:
obtaining a second data reading request sent by the first virtual machine through a preset communication medium, wherein the second data reading request comprises: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment through at least the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and enables at least the first virtual machine to access;
acquiring the data to be read based on the position of the data to be read in the first storage area;
sending the data to be read to the second virtual machine based on the communication address of the second virtual machine;
the location information of the data to be read is carried in a first location of at least one preset variable, and the generation process of the second data read request includes:
splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
respectively storing the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule; a first position of each preset variable bears partial position information of the data to be read, and a second position of each preset variable bears a sub communication address of the data to be read;
calling a read interface for transmitting the at least one preset variable, and sending the at least one preset variable to a kernel mode program for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read; the preset rule is used for indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine, or indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine and the sequence relation between the sub-communication addresses;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
5. The data acquisition method of claim 4, wherein the second data read request includes a transaction identifier for characterizing the transaction corresponding to the second data read request, the data acquisition method further comprising:
generating a first reply message, the first reply message comprising: the message is used for representing that the data to be read is successfully sent to the second virtual machine, and the transaction identifier;
and respectively sending the first response messages to the first virtual machines.
6. A first virtual machine, comprising:
a first receiving module, configured to receive a first data read request, where the first data read request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through the first virtual machine;
the first obtaining module is used for obtaining a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
the first generation module is used for generating a second data reading request based on the position of the data to be read in the second electronic equipment and the communication address of the second virtual machine;
the first sending module is used for sending the second data reading request to the second electronic equipment through the preset communication medium; enabling the second electronic equipment to directly send the data to be read to the second virtual machine;
the location information of the data to be read is carried in a first location of at least one preset variable, and the generating a second data read request includes:
splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
respectively storing the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule; the first position of each preset variable bears partial position information of the data to be read, and the second position of each preset variable bears a sub communication address of the data to be read;
calling a read interface for transmitting the at least one preset variable, and sending the at least one preset variable to a kernel mode program for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read; the preset rule is used for indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine, or indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine and the sequence relation between the sub-communication addresses;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
7. A second virtual machine, comprising;
a first obtaining module, configured to obtain, through a preset communication medium, a second data read request sent by a first virtual machine, where the second data read request includes: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which at least obtains the data to be read from the second electronic equipment through the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and at least enables the first virtual machine to access;
a second obtaining module, configured to obtain the data to be read based on a location of the data to be read in the first storage area;
the first sending module is used for sending the data to be read to the second virtual machine based on the communication address of the second virtual machine;
the location information of the data to be read is carried in a first location of at least one preset variable, and the generation process of the second data read request includes:
splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
respectively storing the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule; the first position of each preset variable bears partial position information of the data to be read, and the second position of each preset variable bears a sub communication address of the data to be read;
calling a read interface for transmitting the at least one preset variable, and sending the at least one preset variable to a kernel mode program for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read; the preset rule is used for indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine, or indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine and the sequence relation between the sub-communication addresses;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
8. A first electronic device, comprising:
a memory for storing a program;
a processor configured to execute the program, the program specifically configured to:
receiving a first data reading request, where the first data reading request includes storage location information of data to be read and a communication address of a second virtual machine, and the storage location information includes: storing information of a second electronic device of the data to be read, and the position of the data to be read in the second electronic device, wherein the second virtual machine is a virtual machine which obtains the data to be read from the second electronic device at least through a first virtual machine;
acquiring a preset communication medium between the first virtual machine and the second electronic equipment based on the information of the second electronic equipment;
generating a second data reading request based on the position of the data to be read in the second electronic device and the communication address of the second virtual machine;
sending the second data reading request to the second electronic equipment through the preset communication medium; enabling the second electronic equipment to directly send the data to be read to the second virtual machine;
the location information of the data to be read is carried in a first location of at least one preset variable, and the generating of the second data read request includes:
splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
respectively storing the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule; the first position of each preset variable bears partial position information of the data to be read, and the second position of each preset variable bears a sub communication address of the data to be read;
calling a read interface for transmitting the at least one preset variable, and sending the at least one preset variable to a kernel mode program for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read; the preset rule is used for indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine, or indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine and the sequence relation between the sub-communication addresses;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
9. A second electronic device, comprising:
a memory for storing a program;
a processor configured to execute the program, the program specifically configured to:
obtaining a second data reading request sent by the first virtual machine through a preset communication medium, wherein the second data reading request comprises: the method comprises the steps that data to be read are located in a first storage area of second electronic equipment and a communication address of a second virtual machine, the second virtual machine is a virtual machine which obtains the data to be read from the second electronic equipment through at least the first virtual machine, and the first storage area is a storage area which is set by the second electronic equipment and enables at least the first virtual machine to access;
acquiring the data to be read based on the position of the data to be read in the first storage area;
sending the data to be read to the second virtual machine based on the communication address of the second virtual machine;
the position information of the data to be read is carried in a first position of at least one preset variable, and the generation process of the second data read request comprises the following steps:
splitting the communication address of the second virtual machine to obtain a preset number of sub-communication addresses;
respectively storing the preset number of sub-communication addresses in a second position of at least one preset variable according to a preset rule; the first position of each preset variable bears partial position information of the data to be read, and the second position of each preset variable bears a sub communication address of the data to be read;
calling a read interface for transmitting the at least one preset variable, and sending the at least one preset variable to a kernel mode program for controlling access to hardware resources;
the kernel mode program is used for:
based on the at least one preset variable and the preset rule, obtaining a communication address of the second virtual machine and position information of the data to be read; the preset rule is used for indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine, or indicating the storage position of each sub-communication address corresponding to the communication address of the second virtual machine and the sequence relation between the sub-communication addresses;
and generating the second data reading request based on the communication address of the second virtual machine and the position of the data to be read in the second electronic equipment.
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