CN112328331B - Method and device for replacing applications in partition mode - Google Patents
Method and device for replacing applications in partition mode Download PDFInfo
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- CN112328331B CN112328331B CN202011376990.0A CN202011376990A CN112328331B CN 112328331 B CN112328331 B CN 112328331B CN 202011376990 A CN202011376990 A CN 202011376990A CN 112328331 B CN112328331 B CN 112328331B
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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
- G06F9/445—Program loading or initiating
- G06F9/44521—Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading
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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
- G06F9/4401—Bootstrapping
- G06F9/4406—Loading of operating system
Abstract
The invention provides a method and a device for replacing an application in a partition, which are applied to a partition operating system, wherein the partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running a partition application in the first deployment space; the method comprises the following steps: dividing a second deployment space in the space of the partition operating system, determining an application replacement partition corresponding to the second deployment space, and deploying the application image to be loaded in the second deployment space; restarting the application replacement partition, and loading the application image to be loaded into the running space of the application replacement partition from the second deployment space; the running application replaces the application image in the partition's running space. The invention realizes the replacement of the application of a certain partition or a plurality of partitions in the running process of the operating system without influencing the running of other partitions, thereby improving the flexibility of the system application.
Description
Technical Field
The invention belongs to the technical field of computer system software, and particularly relates to a method and a device for partition replacement application.
Background
With the development of a comprehensive and modular system, the operating system of a multi-partition structure conforming to the ARINC653 standard is more and more widely used, and the partition applications running on the operating system are more and more complex.
All the partitioned applications divide a whole continuous deployment space, and are loaded to the running space by the system once in the system starting process and started to run.
However, an application that is modified by loading debugging or an application that loads another function cannot run on the solidified partition system.
Disclosure of Invention
The invention provides a method and a device for replacing applications in partitions, which enable system integrators or developers to replace the applications in target partitions under the condition of not influencing the execution states of other partitions.
The invention provides a method for replacing an application in a partition, which is applied to a partition operating system, wherein the partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running a partition application in the first deployment space; the method comprises the following steps:
dividing a second deployment space in the space of the partition operating system, determining an application replacement partition corresponding to the second deployment space, and deploying an application image to be loaded in the second deployment space;
restarting the application replacement partition, and loading the application image to be loaded from a second deployment space into the running space of the application replacement partition;
running the application replaces the application image in the partition's running space.
Optionally, after the second deployment space is divided in the space of the partition operating system, the method further includes:
setting the application replacement identifier of the application replacement partition as support;
before the loading the application image to be loaded from the second deployment space into the runtime space of the application replacement partition, the method further comprises:
determining that an application replacement identifier of the application replacement partition is supported.
Optionally, the dividing the second deployment space in the space of the partition operating system includes:
in a system configuration phase of the partitioned operating system, the second deployment space is divided in a space of the partitioned operating system.
Optionally, the setting the application replacement identifier of the application replacement partition as support includes:
and in the system configuration stage of the partition operating system, setting the application replacement identifier of the application replacement partition as support.
Optionally, the deploying the application image to be loaded in the second deployment space includes:
and deploying the application image to be loaded in the second deployment space in a network, serial port or I/O access mode.
Optionally, the size of the second deployment space is not smaller than the size of the application image to be loaded.
Optionally, the determining the application replacement partition corresponding to the second deployment space includes:
and adding a name to the second deployment space, and sending the name to the application replacement partition.
The invention also provides a device for replacing the application in the partition, which is applied to a partition operating system, wherein the partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running the partition application in the first deployment space; the device comprises:
the partition module is used for partitioning a second deployment space in the space of the partition operating system and determining an application replacement partition corresponding to the second deployment space;
the deployment module is used for deploying the application image to be loaded in the second deployment space;
a restart module for restarting the application replacement partition;
the loading module is used for loading the application image to be loaded from the second deployment space to the running space of the application replacement partition;
and the running module is used for running the application image in the running space of the application replacement partition.
Optionally, the apparatus further comprises:
the identifier setting module is used for setting the application replacement identifier of the application replacement partition as a support after the second deployment space is divided in the space of the partition operating system;
the loading module is specifically configured to determine that the application replacement identifier of the application replacement partition is a support before the application image to be loaded is loaded from the second deployment space into the running space of the application replacement partition.
Optionally, the dividing module is specifically configured to:
in a system configuration phase of the partitioned operating system, the second deployment space is divided in a space of the partitioned operating system.
The invention provides a method and a device for replacing an application in a partition, which are applied to a partition operating system, wherein the partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running a partition application in the first deployment space; the method comprises the following steps: dividing a second deployment space in the space of the partition operating system, determining an application replacement partition corresponding to the second deployment space, and deploying the application image to be loaded in the second deployment space; restarting the application replacement partition, and loading the application image to be loaded into the running space of the application replacement partition from the second deployment space; the running application replaces the application image in the partition's running space. The invention realizes the replacement of the application of a certain partition or a plurality of partitions in the running process of the operating system without influencing the running of other partitions, thereby improving the flexibility of the system application.
Drawings
FIG. 1 is a diagram illustrating physical partitioning of memory space;
FIG. 2 is a flow diagram of a partition replacement application.
Detailed Description
Fig. 1 is a schematic diagram of physical division of a memory space, and referring to fig. 1, a partitioned operating system is divided into a module support layer, an operating system layer and an application layer, and the memory space includes a module support layer space, an operating system space and an application running space from bottom to top. The partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running a partition application in the first deployment space. Each partition runs only one application. The IO space is a space divided for an external IO device. The divided second deployment space is used for deploying the application image to be loaded of the application replacement partition.
Fig. 2 is a flowchart of a partition replacement application, and as shown in fig. 2, the method for replacing a partition provided by the present invention is as follows:
step 1, in the whole system configuration and space division stage, an independent deployment space is divided for the partition application, and the size of the space is larger than or equal to the size of each application before and after the partition is changed for the application.
And 2, marking that the partition supports replacing the application in the configuration stage.
And 3, starting the operating system, and scheduling the partition application by all the partitions according to the time scheduling table.
And 4, loading a new partition application image to the partition RAM deployment space divided in the step 1) before replacing the partition application. The loading mode can be as follows:
1) Loading an application image through a network;
2) Loading an application image through a serial port;
3) And loading the application image positioned at the peripheral equipment in an I/O access and storage mode.
And 5, after the loading in the step 4 is finished, restarting the partition, and loading the replaced partition image loaded in the step 1) into the partition running space.
And 6, jumping to the newly loaded partition application inlet for execution, and finishing the replacement of the partition application.
Summarizing one possible embodiment, the specific working steps of the network-based partition replacement application provided by the present invention include:
s1, system configuration: and dividing a space with proper size in the system space as the deployment space of the partition.
And S2, starting a partition operating system to run. At this time, each partition is scheduled in turn according to the arrangement of the time schedule.
And S3, loading the new application image of the partition into the space divided in the S1 through a network.
And S4, restarting the partition, and copying the new image to the running space.
And S5, the system jumps into a partition application entrance for execution.
And S6, if the partition application needs to be replaced for multiple times, repeating the step S3 to the step S5.
The method for replacing the application provided by the invention supports the replacement of the application for a plurality of partitions.
Claims (7)
1. The method for replacing the application in the partition is applied to a partition operating system, wherein the partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running the partition application in the first deployment space; the method comprises the following steps:
dividing a second deployment space in the space of the partition operating system, determining an application replacement partition corresponding to the second deployment space, and deploying an application image to be loaded in the second deployment space;
restarting the application replacement partition, and loading the application image to be loaded from a second deployment space into the running space of the application replacement partition;
running the application image in the running space of the application replacement partition;
after the partitioning the second deployment space in the space of the partitioned operating system, the method further comprises:
setting the application replacement identifier of the application replacement partition as support;
before the loading the application image to be loaded from the second deployment space into the runtime space of the application replacement partition, the method further comprises:
determining that an application replacement identifier of the application replacement partition is supported;
the determining the application replacement partition corresponding to the second deployment space includes:
and adding a name to the second deployment space, and sending the name to the application replacement partition.
2. The method of claim 1, wherein partitioning the second deployment space in the space of the partitioned operating system comprises:
in a system configuration phase of the partitioned operating system, the second deployment space is divided in a space of the partitioned operating system.
3. The method according to claim 2, wherein the setting the application replacement identifier of the application replacement partition as support comprises:
and in the system configuration stage of the partition operating system, setting the application replacement identifier of the application replacement partition as support.
4. The method of claim 1, wherein deploying the application image to be loaded in the second deployment space comprises:
and deploying the application image to be loaded in the second deployment space in a network, serial port or I/O access mode.
5. The method of claim 1, wherein a size of the second deployment space is not less than a size of an application image to be loaded.
6. The device for replacing the application in the partition is applied to a partition operating system, wherein the partition operating system comprises at least one partition, each partition is divided into a first deployment space and a running space, and the running space is used for running the partition application in the first deployment space; the device comprises:
the partition module is used for partitioning a second deployment space in the space of the partition operating system and determining an application replacement partition corresponding to the second deployment space;
the deployment module is used for deploying the application image to be loaded in the second deployment space;
a restart module for restarting the application replacement partition;
the loading module is used for loading the application image to be loaded from the second deployment space to the running space of the application replacement partition;
the running module is used for running the application image in the running space of the application replacement partition;
the identifier setting module is used for setting the application replacement identifier of the application replacement partition as a support after the second deployment space is divided in the space of the partition operating system;
the loading module is specifically configured to determine that the application replacement identifier of the application replacement partition is supported before loading the application image to be loaded from the second deployment space into the running space of the application replacement partition;
the partitioning module is further configured to add a name to the second deployment space, and send the name to the application replacement partition.
7. The apparatus of claim 6, wherein the partitioning module is specifically configured to:
in a system configuration phase of the partitioned operating system, the second deployment space is divided in a space of the partitioned operating system.
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