CN108121594A - A kind of process management method and device - Google Patents
A kind of process management method and device Download PDFInfo
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- CN108121594A CN108121594A CN201611078446.1A CN201611078446A CN108121594A CN 108121594 A CN108121594 A CN 108121594A CN 201611078446 A CN201611078446 A CN 201611078446A CN 108121594 A CN108121594 A CN 108121594A
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- subprocess
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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
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
- G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
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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
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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
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
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Abstract
This application discloses a kind of process management method and devices.Start agent process, the agent process loads dynamic link library that the agent process linked to memory；The agent process creates the first subprocess, and first subprocess loads first program by calling the entrance function of the program；The agent process creates the second subprocess, and second subprocess loads second program by calling the entrance function of second program；Wherein, the memory that dynamic link library described in first program and second procedure sharing occupies.
Description
Technical field
This application involves field of computer technology more particularly to a kind of process management methods and device.
Background technology
Process (Process) is program in computer on the once operation activity on certain data acquisition system, be system into
The base unit of row Resource Distribution and Schedule is the basis of operating system configuration.Program is instruction, data and its organizational form
Description, process is the entity of program.
In linux system, init processes are the parent processes of all processes in linux system.Init processes are by Linux
Core guiding operation, is first process in system.Init processes generate subprocess, and subprocess shares the memory of parent process at this time
Space, once parent process or subprocess have modified certain page of memory, then linux kernel can create this page of memory and be specific to the process
Copy, such father and son's process can share the identical page of content, and not interfere with each other.
The content of the invention
The embodiment of the present application provides a kind of process management method and device.
Method provided by the embodiments of the present application, including：Start agent process, the agent process loads the agent process
The dynamic link library linked is to memory；The agent process creates the first subprocess, and first subprocess is by calling
The entrance function of the first program is stated, loads first program；The agent process creates the second subprocess, second son into
Journey loads second program by calling the entrance function of second program；Wherein, first program and described second
The memory that dynamic link library described in procedure sharing occupies.
Description of the drawings
Fig. 1 is the process schematic of linux system loading procedure in the prior art；
Fig. 2 is the memory distribution schematic diagram after linux system loading procedure in the prior art；
Fig. 3 is the process schematic of linux system loading procedure in the embodiment of the present application；
Fig. 4 is the memory distribution schematic diagram after linux system loading procedure in the embodiment of the present application；
Fig. 5 is the Booting sequence schematic diagram of application program in the embodiment of the present application；
Fig. 6 is the structure diagram of device provided by the embodiments of the present application；
Fig. 7 is the structure diagram for the device that the application other embodiment provides.
Specific embodiment
Although the concept of the application is easy to carry out various modifications and alternative form, its specific embodiment is by attached
Example in figure shows and will be described in detail herein.It will be appreciated, however, that it is not intended to limit the concept of the application
For particular forms disclosed, but on the contrary, it is intended to be the covering all modifications consistent with the application and appended claims,
Equivalent and substitute.
To the reference of " one embodiment ", " embodiment ", " illustrative embodiment " etc. in specification, described reality is indicated
Applying example may include a particular feature, structure, or characteristic, but each embodiment may or may not must include special characteristic, structure or
Characteristic.In addition, such phrase is not necessarily referring to identical embodiment.Further, it is believed that those skilled in the art's
In knowledge, when describing a particular feature, structure, or characteristic in conjunction with the embodiments, with reference to regardless of whether the other realities being expressly recited
Apply feature as example influence, structure or characteristic.In addition, it will be appreciated that include in the form of " at least one in A, B and C "
Project in lists can represent (A)；(B)；(C)；(A and B)；(A and C)；(B and C)；Or (A, B and C).Similarly, with
The project that the form of " at least one in A, B or C " is listed can represent (A)；(B)；(C)；(A and B)；(A and C)；(B and C)
Or (A, B and C).
In some cases, the disclosed embodiments can hardware, firmware, software or any combination thereof in realize.Institute
Disclosed embodiment is also implemented as machine readable (for example, computer can by one or more temporary or non-transitories
Read) storage medium carries or the instruction of storage, and it can be read and be performed by one or more processors.Machine readable storage is situated between
Matter can be presented as with machine-readable form (for example, volatibility or nonvolatile memory, dielectric disc or other media)
The equipment of any storage device of storage or transmission information, mechanism or other physical arrangements).
In the accompanying drawings, some structures or method characteristic can be shown with specific arrangements and/or order.It will be appreciated, however, that
It may not be needed such specific arrangement and/or sequence.On the contrary, in some embodiments, these features can with it is illustrative
Different mode shown in attached drawing and/or order are arranged.In addition, including structure in specific pattern or method characteristic is not intended to
It and implies that this feature is all needed in all embodiments, and can not include in some embodiments or can be with it
His combinations of features.
It is in current linux system, by the schematic diagram of init process initiation program a and program b referring to Fig. 1.As schemed
Show, system starts init processes first, and init processes call fork functions to generate subprocess a, and subprocess a calls exec functions
With loading procedure a.The loading procedure of program b is similar.
When subprocess calls exec functions one new procedures of loading, the memory headroom of the subprocess, which can be completely removed, lays equal stress on
It builds, i.e., the subprocess no longer has shared page with init processes.Init processes wound in linux systems all at present
By the way that exec functions is called to realize when building new procedures.Fig. 2 show program a and program b start after memory distribution in system
Schematic diagram, it can be seen that there are have a copy in two program a, program b subprocess in dynamic link library.
Wherein, dynamic link library is a kind of mode for realizing Sharing Function storehouse, calls process and is not belonging to it and can hold
The function of line code.There are a large amount of dynamic link libraries, most of executable program in system can use dynamic link library.These
Dynamic link library occupies a large amount of memories.Therefore, how to reduce the memory overhead of dynamic link library is current problem to be solved.
Since in linux system, init processes can not link dynamic link library, therefore generation is used in the embodiment of the present application
Reason process (being known as cinit processes) link dynamic link library, creates subprocess, the son created by agent process by the agent process
The entrance function of process caller carrys out loading procedure, due to the entrance by the subprocess that agent process creates by caller
Function carrys out loading procedure rather than exec () function is called to carry out loading procedure, thus the memory of distinct program avoid by completely every
From；Again since the agent process has linked dynamic link library, when agent process starts, the dynamic link library is loaded into memory,
Therefore the multiple programs loaded through the above way can share the memory for the dynamic link library that agent process is loaded, thus with
In the prior art each program be both needed to preserve dynamic link library copy compare, reduce the memory overhead of dynamic link library.
Principle provided by the embodiments of the present application, can program in linux system, also can program in have a similar demand other be
System.
Below exemplified by applying the embodiment of the present application in linux system, to the specific implementation process of the embodiment of the present application
It is described.
When computer booting, system kernel (kernel) only establishes an init process.Linux kernel is not
The system calling for directly establishing new process is provided, other all processes are all that init processes pass through fork Mechanism establishings.
Fork is that a system is called, and by calling fork functions, old process (parent process) itself can obtain new process (son by replicating
Process).Process is survived in memory, and each process is assigned one's own address space (address in memory
space).When fork functions are called, Linux hews out new memory headroom to new process in memory, and will always into
Content in journey memory headroom is copied in the new space, this latter two process is run simultaneously.
Since init processes can not link dynamic link library, agent process is introduced in the embodiment of the present application and (is known as
Cinit processes).Agent process has linked dynamic link library in compiling, which can include linux system and provide
Basic dynamic link library, be normally applied program operation when can use.During init process initiations, the agent process
It is activated, so as to which the dynamic link library that the agent process is linked is loaded into memory.Other programs can be by this in system
Agent process starts.
When needing to load new program (for example user is operated by the screen touch of mobile terminal, clicking one should
With the icon of program or have occurred the operations of other triggering loading application programs), subprocess is created by agent process, the son
Process loads the program by calling the entrance function of the program.
During being somebody's turn to do, agent process still can be by calling fork function creation subprocess.When agent process calls fork letters
After number, system to new process (subprocess) distribution resource, such as Linux hew out in memory a piece of new memory headroom to
New process for storing data and code, and the content in the old process space is copied in new space, wherein, only
Have that a small number of parameters is different from the parameter of old process, in this way, new process and old process can realize essentially identical function.When
So, the initial parameter that inputs or incoming variable can not also be same when calling fork functions, in this way, new process and it is old into
Journey can realize different functions.
Subprocess of the obtained process as agent process is newly created, obtains the address of the entrance function of application program, is adjusted
With the entrance function of the application program, so as to load the application program.Wherein, application program usually has main functions, it is
The entrance function of application program is function called first when starting application program, so as to the application program that brings into operation.
In addition in some embodiments, when starting application program, other functions can be performed prior to the main functions of the application program, than
All there is _ _ libc_start_main functions, function call main letters in the executable program compiled such as gcc compilers
Number, the i.e. function are performed prior to main functions.In this case, after agent process creates subprocess, which can pass through
Call application program _ _ libc_start_main functions load the application program.
Wherein, the address of entrance function can be from by obtaining in the executable program of compiling and link.The source of application program
Code is needed after compiler is compiled and linker is linked, and forms executable program, and executable program is usual
Can perform and can link the storage of form (Executable and Linkable Format, abbreviation ELF) file.ELF files
Include machine instruction code, data, symbol table, Debugging message, character string after compiling etc..General ELF files are literary by these
Part information presses different attributes, is stored in the form of " section " or " section ".Wherein, the dynsym sections in ELF files are mainly used for depositing
Store up the relevant information of operating system, such as variable name, function name etc..It can be by the way that dlsym functions be called to obtain in ELF files
Main function addresses in dynsym sections.
Under default situations, when being executable file by compilation of source code, the address of main functions does not export to dynsym
Duan Zhong, that is to say, that can not be by the way that dlsym functions is called to obtain the address of main functions.It, can be by repairing in the embodiment of the present application
Change linker, linker is made to export to the address of main functions in dynsym sections when being linked.For different linkers,
Its amending method is not quite similar.The method that other any addresses that can export main functions can certainly be used.The application
Embodiment is not restricted the method for obtaining the address of entrance function.
Further, in some embodiments, before the entrance function of the subprocess caller created by agent process,
It is identical with the title of the program by the name modifications of the subprocess.In linux system, under default situations, the name of subprocess
Identical with the title of parent process (being referred to as agent process cinit here), otherwise process name can show mistake.It specifically can be by following
Mode changes the title of process：
Mode 1：Subprocess calls to change the system call function of process title.In linux system, prctl letters
Number is system call function, has higher permission, the title available for the process of setting.Therefore the subprocess can be to operating system
Kernel requests call prctl functions, are configured by the title for performing the prctl function pairs subprocess.
Mode 2：Subprocess obtains the address of the region of memory for storage process title in the subprocess, and changes the ground
The parameter value (title that process title is revised as to application program) stored in the corresponding region of memory in location.The embodiment of the present application
In, in subprocess memory headroom, the region for being argv [0] in address is stored with the title of the subprocess, if deposited in the region
The parameter value of storage changes, then the title of the subprocess can also change.Therefore, if being the area of argv [0] by address in subprocess
The parameter value stored in domain is revised as needing the title of application program to be started, then can cause title and the application of the subprocess
The title of program is identical.The subprocess subsequently created can modified address be to be stored in the region of argv [0] in the subprocess
Parameter value, so each subprocess can set the title of oneself, without disturbing other subprocess.
Further, in some embodiments, after application program launching, if necessary to change application name (ratio
During if desired for being that current application program shows a special title in the user interface), that is, change the process of the application program
Title can also then modify in the following ways：What the process of the application program was stored from the exclusive memory of the process
In start-up parameter, obtain for storage process title region of memory address (address of the region of memory be variable argv [0]
Value), and change the parameter value stored in the corresponding region of memory in the address and (process title be revised as application program
Newname).
Further, in some embodiments, some environmental variances are related to process, and weight is needed when starting new procedures
It puts, which specific environmental variance needs are reset depending on then visualisation platforms.In the embodiment of the present application, agent process creates subprocess
Afterwards, which can reset environmental variance used in the corresponding program of the subprocess, and subprocess resets the operation of environmental variance
It can be before the function of call entry or when other need to change environmental variance.For example, the value there are one environmental variance
It is the filename that the application is stored in systems, it is clear that each the corresponding file of application is different, it is necessary to each application
Reset the environmental variance.
Further, if in some embodiments it is contemplated that it is some cannot heritable resource inherited by subprocess, can
Generate mistake, such as resource as filec descriptor.Therefore, in the embodiment of the present application, agent process create subprocess it
Before, the resource that cannot be inherited by the subprocess can be closed.Wherein, agent process can determine which resource cannot by subprocess after
It holds.When it is implemented, in some instances, it can pre-set which resource cannot be inherited by subprocess, it is necessary to which agent process exists
These resources are closed or discharged before creating subprocess.In other example, the parent process of subprocess can be according to pre-setting
Rule determine which resource cannot be inherited by subprocess, for example, when parent process monitor a network port, it be not intended to son into
Journey also monitors the port, because two processes are usually present with mistake while listening for same port, then it just needs closing
The port is closed, the opportunity of closing is after the parent process calls fork functions, before subprocess is run.
If it should be noted that the program that starts of agent process again using exec functions start other programs (and
Thereafter all programs started), then their memory can not be shared.Therefore, it is every to wish that subprocess be total to its parent process
Memory is enjoyed, is required to create subprocess and loading procedure in a manner described.Since said program is general, it is to allow
Other programs of system abide by the program, and the embodiment of the present application can provide an auxiliary function to realize said program, for other
The routine call function, in this way, the function can be used in each process for needing to save memory using said program, without
The code for being used to implement said program is write for each process.
With reference to Fig. 3 and Fig. 4, by taking the loading procedure of application program a and application program b as an example, to above-described embodiment
Specific implementation process is described.
As shown in Figure 3 and Figure 4, when linux system starts, linux kernel is exclusive for init course allocation init processes
Memory headroom, and guide operation init processes.Start agent process (cinit) after init process initiations, agent process has it
Exclusive memory headroom, the memory headroom are distributed in the init process initiations agent process by linux kernel.Due to agency
Process has linked the basic dynamic link library of linux system in compiling, therefore the dynamic link library is loaded into memory.
The process of loading application programs a, as shown in figure 3, agent process (cinit) calls fork functions, establishment obtains son
Process a.During this, as shown in figure 4, Linux hews out a piece of new memory headroom to subprocess a (i.e. in figure in memory
Memory exclusive shown a), for storing data and code, and the content in agent process is copied in new space.Such as
Shown in Fig. 3, subprocess a calls dlopen functions, and input parameter includes filename (file name and the agency of dynamic link library
The filename for the dynamic link library that process is connected is identical), so as to open the dynamic link library in subprocess a.Pass through calling
Dlopen functions, the parameter that the dynamic link library handle that dlopen functions return can be passed in dlsym functions, to be accorded with
Address number in the dynamic link library using this address, can obtain the pointer of respective function in the dynamic link library, and
And call the respective function in the dynamic link library.Subprocess a calls the main functions of application program a, so as to start using journey
Sequence a.
The process of loading application programs b, as shown in figure 3, agent process (cinit) calls fork functions, establishment obtains son
Process b.During this, as shown in figure 4, Linux hews out a piece of new memory headroom to subprocess b (i.e. in figure in memory
Memory exclusive shown b), for storing data and code, and the content in agent process is copied in new space.Such as
Shown in Fig. 3, subprocess b calls dlopen functions, and input parameter includes filename (file name and the agency of dynamic link library
The filename for the dynamic link library that process is connected is identical), so as to open the dynamic link library in subprocess a.Subprocess b tune
With the main functions of application program b, so as to start application program b.
From fig. 4, it can be seen that exec functions are not used when starting application program in subprocess a and subprocess b, but call into
Mouthful function, and proxied process is loaded into memory the dynamic link library opened of application program a and application program b,
Therefore application program a and application program b can share the memory of the dynamic link library, without each preserving a dynamic chain
Connect the copy in storehouse.
When the function in the dynamic link library that application call is loaded by agent process, data which is changed
The exclusive memory headroom of the application program (or the corresponding process of the application program) can be stored in.If for example, application program a
(subprocess a) calls the method (function) in dynamic link library, and modification data are needed in this method (function) implementation procedure
(such as value of modification variable), which can be stored in application program a (the exclusive memory headrooms of subprocess a) by operating system；
If application program b (subprocess b) calls this method (function) in dynamic link library, and in this method (function) implementation procedure
It needs to change the identical variable of title, operating system can in application program b, (the exclusive memory of subprocess b) be empty by the variable storage
Between.In this way, application program a and application program b can sharing DLL, but call the variable changed of dynamic link library that can deposit
It stores up in each exclusive memory headroom, avoids data collision.
Referring to Fig. 5, which describes the start-up course of the application program by taking above-mentioned application program a as an example.Application program
The start-up course of b is similar.As shown in figure 5, when needing to start application program a, which may include：
Box 501：Agent process determines the resource that cannot be inherited by subprocess, these resources are closed.
Box 502：Agent process calls fork functions, creates subprocess a.In this process, system gives the son newly created
The exclusive memory headroom of the course allocation subprocess, the memory headroom are specific to the subprocess.
Box 503：Subprocess a calls prctl functions, is application by performing the function by the name modifications of subprocess a
The title of program a.
Box 504：Subprocess a resets component environment variable, for example resets the filename stored in storage system
Variate-value.
Box 505：Subprocess a calls dlopen functions, and proxied process is loaded into the dynamic link library of memory
Name is referred to as the input parameter of the function, so as to which by performing the function, the dynamic link library is opened in subprocess a.
Box 506：Subprocess a calls dlsym functions, the main function addresses of the program that is applied a.
Box 507：Subprocess a calls the main functions of application program a according to the main function addresses of application program a, from
And loading application programs a.
In above-mentioned flow, the order of box 503 to box 506 can adjust, and the embodiment of the present application is without limitation.
Above-mentioned flow implements process, reference can be made to previous embodiment, is not repeated herein.
By above description as can be seen that in above-described embodiment of the application, whens init process initiations in system, starts
Agent process when agent process starts, loads dynamic link library that the agent process linked to memory；When needing to load some
During program, agent process creates a subprocess, which loads the program by calling the entrance function of the program, this
Sample, the multiple programs loaded through the above way can share the memory that the dynamic link library that the agent process is loaded occupies,
The copy of a dynamic link library is preserved without each program, reduces the memory overhead of dynamic link library.
Based on identical technical concept, the embodiment of the present application additionally provides a kind of device, which can realize foregoing implementation
The flow of example description.
Referring to Fig. 6, for the structure diagram of device provided by the embodiments of the present application.The device may include：Starting module
601st, process creation module 602, wherein：
Starting module 601, for starting agent process, the agent process loads the dynamic that the agent process is linked
Chained library is to memory；Process creation module 602, for creating the first subprocess, first subprocess is by calling described
The entrance function of one program loads first program；And the second subprocess is created, second subprocess passes through calling
The entrance function of second program loads second program；Wherein, first program and the second procedure sharing institute
State the memory of dynamic link library occupancy.
Optionally, starting module 601 is first process in operating system, the generation started by the starting module
Reason process is used to act on behalf of first process creation subprocess.
Optionally, process creation module 602 is additionally operable to：Before the entrance function for calling first program, pass through calling
Be used to open the function of dynamic link library, the dynamic link library opened in first subprocess, wherein, the function it is defeated
Entering parameter includes the filename of the dynamic link library；And before calling the entrance function of second program, pass through tune
With the function for being used to open dynamic link library, the dynamic link library is opened in second subprocess, wherein, the function
Input parameter includes the filename of the dynamic link library.
Optionally, first subprocess that process creation module 602 creates calls the entrance function of first program
Before, it is identical with the title of first program by the name modifications of first subprocess；Process creation module 602 creates
Second subprocess call the entrance function of second program before, by the name modifications of second subprocess be with
The title of second program is identical.
Optionally, process creation module 602 is additionally operable to：Before creating first subprocess, closing cannot be by described
The resource that one subprocess is inherited；And before creating second subprocess, close what cannot be inherited by second subprocess
Resource.
Optionally, first subprocess that process creation module 602 creates calls the entrance function of first program
Before, environmental variance used in first program is reset；Second subprocess that process creation module 602 creates calls
Before the entrance function of second program, environmental variance used in second program is reset.
Optionally, first program is when being compiled, and the entrance function address of first program is exported to described
In the executable file of first program；First subprocess of the process creation module creation calls first program
Before entrance function, the entrance function address of first program is obtained according to the executable file of first program；It is described
For second program when being compiled, the entrance function address of second program is exported to the executable file of second program
In；Before second subprocess of the process creation module creation calls the entrance function of second program, according to institute
The executable file for stating the second program obtains the entrance function address of second program.
Optionally, processing module (being not shown) is may also include in above device, which can be used for adding
After carrying first program, data that will be changed by the function in the dynamic link library of first routine call,
It is stored in the exclusive memory headroom of first subprocess；It, will be by second journey and after second program is loaded
It is empty to be stored in the exclusive memory of second subprocess for the data that function in the dynamic link library that sequence is called is changed
Between.
Based on identical technical concept, the embodiment of the present application additionally provides one or more computer-readable mediums, described
Instruction is stored on readable medium, when described instruction is executed by one or more processors so that user equipment performs foregoing reality
Apply the flow of example description.
Based on identical technical concept, the embodiment of the present application additionally provides a kind of device 700, before which can realize
State the flow of embodiment description.
700. device 700 of exemplary device that Fig. 7 schematically illustrates according to various embodiments may include one or more
Processor 702, system control logic 701 are coupled at least one processor 702, nonvolatile memory (non-volatile
Memory, NMV)/memory 704 is coupled in system control logic 701, and network interface 706 is coupled in system control logic 701.
Processor 702 may include one or more single core processors or polycaryon processor.Processor 702 may include any one
As purposes processor or application specific processor (such as image processor, application processor baseband processor) combination.
System control logic 701 in one embodiment, it may include any appropriate interface controller, to provide to processing
At least one any suitable interface and/or offer in device 702 is any suitable to what is communicated with system control logic 701
Equipment or component any suitable interface.
System control logic 701 in one embodiment, it may include one or more Memory Controller Hub, to provide to system
The interface of memory 703.Installed System Memory 703 is used for loading and storing data and/or instruction.For example, corresponding intrument 700, one
In a embodiment, Installed System Memory 703 may include any suitable volatile memory.
NVM/ memories 704 may include the computer-readable medium of one or more tangible nonvolatiles, for storing number
According to and/or instruction.For example, NVM/ memories 704 may include any suitable non-volatile memory device, it is such as one or more hard
Disk (hard disk device, HDD), one or more CDs (compact disk, CD) and/or one or more numbers
Universal disc (digital versatile disk, DVD).
NVM/ memories 704 may include storage resource, which is physically that the system is installed or can be with
A part for accessed equipment, but it is not necessarily a part for equipment.For example, NVM/ memories 704 can be via network interface
706 by network access.
Installed System Memory 703 and NVM/ memories 704 can include the copy of interim or lasting instruction 710 respectively.Refer to
Make 710 may include when by cause during at least one execution in processor 702 method that device 700 realizes that Fig. 2 to Fig. 5 describes it
One or combination instruction.In each embodiment, instruction 710 or hardware, firmware and/or component software can additionally/alternatively by
It is placed in system control logic 701, network interface 706 and/or processor 702.
Network interface 706 may include a receiver to provide wireless interface and one or more networks for device 700
And/or any suitable equipment communicates.Network interface 706 may include any suitable hardware and/or firmware.Network interface
706 may include mutiple antennas to provide MIMO wireless interface.In one embodiment, network interface 706 may include
One network adapter, a wireless network adapter, a telephone modem and/or radio modem.
In one embodiment, at least one in processor 702 can be with one for system control logic or more
The logic of a controller encapsulates together.In one embodiment, in processor it is at least one can with for system control patrol
The logic for the one or more controllers collected encapsulates to form system in package together.In one embodiment, in processor
It is at least one to be integrated on the same die with the logic of one or more controllers for system control logic.One
In a embodiment, at least one in processor can be with the logical set of one or more controllers for system control logic
Into on the same die to form System on Chip/SoC.
Device 700 can further comprise input/output device 705,.Input/output device 705 may include user interface purport
It is interacted making user with device 700, it may include peripheral component interface is designed so that peripheral assembly can be with system
Interaction and/or, it may include sensor, it is intended to determine environmental condition and/or the location information in relation to device 700.
The disclosure can include the various example embodiments of following discloses.
In example embodiment 1, the method for use can merge：Start agent process, the agent process loads institute
Dynamic link library that agent process linked is stated to memory；The agent process creates the first subprocess, first subprocess
By calling the entrance function of first program, first program is loaded；The agent process creates the second subprocess, institute
The second subprocess is stated by calling the entrance function of second program, loads second program；Wherein, first program
The memory occupied with dynamic link library described in second procedure sharing.
In example embodiment 2, according to example embodiment 1, the agent process is opened by first process in operating system
Dynamic, the agent process is used to act on behalf of first process creation subprocess.
In example embodiment 3,1-2, further includes according to example embodiment：By the letter for being used to open dynamic link library
Number, the dynamic link library is opened in first subprocess, wherein, the input parameter of the function includes the dynamic chain
Connect the filename in storehouse；And/or it further includes：By being used to open the function of dynamic link library, in second subprocess
The dynamic link library is opened, wherein, the input parameter of the function includes the filename of the dynamic link library.
In example embodiment 4,1-3, further includes according to example embodiment：By the name modifications of first subprocess be with
The title of first program is identical；And/or it further includes：It is and second journey by the name modifications of second subprocess
The title of sequence is identical.
In example embodiment 5, according to example embodiment 4, the title of subprocess is changed in the following manner：Subprocess calls
For changing the system call function of process title；Alternatively, subprocess is obtained in the subprocess for storage process title
The address of region of memory, and change the parameter value stored in the corresponding region of memory of described address.
In example embodiment 6,1-5, before the agent process creates first subprocess, goes back according to example embodiment
Including：Close the resource that cannot be inherited by first subprocess；Before the agent process creates second subprocess, also
Including：Close the resource that cannot be inherited by second subprocess.
In example embodiment 7,1-6, further includes according to example embodiment：Environment used in first program is reset to become
Amount；And/or it further includes：Reset environmental variance used in second program.
In example embodiment 8,1-7, further includes according to example embodiment：First subprocess obtains to store first
The address of the region of memory of subprocess title, and change the parameter value stored in the corresponding region of memory of described address；And/or
It further includes：Second subprocess sends to the agent process and asks；The agent process is used for according to the request, acquisition
The address of the parameter of the second subprocess title is stored, and changes the parameter value in described address.
In example embodiment 9,1-8, further includes according to example embodiment：It will be by the dynamic of first routine call
The data that function in chained library is changed are stored in the exclusive memory headroom of first subprocess；And/or it further includes：It will
It is only to be stored in second subprocess for the data changed by the function in the dynamic link library of second routine call
Some memory headrooms.
In example embodiment 10,1-9 according to example embodiment, first program is when being compiled, first program
Entrance function address be exported in the executable file of first program；First subprocess calls first journey
Before the entrance function of sequence, the entrance function address of first program is obtained according to the executable file of first program；
For second program when being compiled, the entrance function address of second program is exported to the executable of second program
In file；Before second subprocess calls the entrance function of second program, according to the executable of second program
The entrance function address of second program described in file acquisition.
The disclosure can also include the various example embodiments of following discloses.
In example embodiment 1, device can merge, which may include：Starting module, for start act on behalf of into
Journey, the agent process load dynamic link library that the agent process linked to memory；Process creation module, for creating
First subprocess, first subprocess load first program by calling the entrance function of first program；With
And the second subprocess is created, second subprocess loads second journey by calling the entrance function of second program
Sequence；Wherein, the memory that dynamic link library described in first program and second procedure sharing occupies.
In example embodiment 2, according to example embodiment 1, the starting module is first process in operating system, quilt
The agent process that the starting module starts is used to act on behalf of first process creation subprocess.
In example embodiment 3,1-2, the process creation module are additionally operable to according to example embodiment：It is used to beat by calling
The function of dynamic link library is opened, the dynamic link library is opened in first subprocess, wherein, the input parameter of the function
Include the filename of the dynamic link library；And/or the function by being used to open dynamic link library, described
The dynamic link library is opened in two subprocess, wherein, the input parameter of the function includes the file of the dynamic link library
Name.
In example embodiment 4,1-3 according to example embodiment, first subprocess of the process creation module creation
It is identical with the title of first program by the name modifications of first subprocess；And/or the process creation module wound
The name modifications of second subprocess are identical with the title of second program by second subprocess built.
In example embodiment 5,1-4, the process creation module are additionally operable to according to example embodiment：Create first son
Before process, the resource that cannot be inherited by first subprocess is closed；And before creating second subprocess, close
The resource that cannot be inherited by second subprocess.
In example embodiment 6,1-5 according to example embodiment, first subprocess of the process creation module creation
Reset environmental variance used in first program；And/or the second subprocess weight of the process creation module creation
Put environmental variance used in second program.
In example embodiment 7,1-6, further includes processing module according to example embodiment, for will be by the first program tune
The data that function in the dynamic link library is changed are stored in the exclusive memory headroom of first subprocess；With/
Or, the data that will be changed by the function in the dynamic link library of second routine call, it is stored in second son
The exclusive memory headroom of process.
In example embodiment 8,1-7 according to example embodiment, first program when being compiled, first program
Entrance function address is exported in the executable file of first program；Described the first of the process creation module creation
Subprocess obtains the entrance function address of first program according to the executable file of first program；Second program
When being compiled, the entrance function address of second program is exported in the executable file of second program；With/
Or, second subprocess of the process creation module creation obtains described the according to the executable file of second program
The entrance function address of two programs.
The disclosure can also include the various example embodiments of following discloses.
In example embodiment 1, computer-readable medium can merge, and may include：One or more computers can
Medium is read, instruction is stored on the readable medium, when described instruction is executed by one or more processors so that communication equipment
Perform the method as any one of claim 1-10.
The disclosure can also include the various example embodiments of following discloses.
In example embodiment 1, device can merge, and may include：One or more processors；And one or
Multiple computer-readable mediums are stored with instruction on the readable medium, and described instruction is held by one or more of processors
During row so that described device performs the method as any one of claim 1-10.
Claims (20)
- A kind of 1. method, which is characterized in that including：Start agent process, the agent process loads dynamic link library that the agent process linked to memory；The agent process creates the first subprocess, first subprocess by calling the entrance function of first program, Load first program；The agent process creates the second subprocess, second subprocess by calling the entrance function of second program, Load second program；Wherein, the memory that dynamic link library described in first program and second procedure sharing occupies.
- 2. the method as described in claim 1, which is characterized in that the agent process is opened by first process in operating system Dynamic, the agent process is used to act on behalf of first process creation subprocess.
- 3. the method as described in claim 1, which is characterized in that further include：By the letter for being used to open dynamic link library Number, the dynamic link library is opened in first subprocess, wherein, the input parameter of the function includes the dynamic chain Connect the filename in storehouse；And/orIt further includes：By being used to open the function of dynamic link library, the dynamic chain is opened in second subprocess Storehouse is connect, wherein, the input parameter of the function includes the filename of the dynamic link library.
- 4. the method as described in claim 1, which is characterized in that further include：By the name modifications of first subprocess be with The title of first program is identical；And/orIt further includes：It is identical with the title of second program by the name modifications of second subprocess.
- 5. method as claimed in claim 4, which is characterized in that change the title of subprocess in the following manner：Subprocess calls to change the system call function of process title；Alternatively,Subprocess obtains the address of the region of memory for storage process title in the subprocess, and changes described address correspondence Region of memory in the parameter value that stores.
- 6. the method as described in claim 1, which is characterized in that before the agent process creates first subprocess, also Including：Close the resource that cannot be inherited by first subprocess；And/orBefore the agent process creates second subprocess, further include：Close what cannot be inherited by second subprocess Resource.
- 7. the method as described in claim 1, which is characterized in that further include：Environment used in first program is reset to become Amount；And/orIt further includes：Reset environmental variance used in second program.
- 8. the method as described in claim 1, which is characterized in that further include：First subprocess is obtained for storing the address of the region of memory of the first subprocess title, and changes described address pair The parameter value stored in the region of memory answered；And/or it further includes：Second subprocess sends to the agent process and asks；The agent process obtains for storing the address of the parameter of the second subprocess title according to the request, and changes institute State the parameter value in address.
- 9. the method as described in claim 1, which is characterized in that further include：The data that will be changed by the function in the dynamic link library of first routine call are stored in first son The exclusive memory headroom of process；And/orThe data that will be changed by the function in the dynamic link library of second routine call are stored in second son The exclusive memory headroom of process.
- 10. method as claimed in any one of claims 1-9 wherein, which is characterized in that first program is when being compiled, institute The entrance function address for stating the first program is exported in the executable file of first program；First subprocess calls Before the entrance function of first program, the entrance of first program is obtained according to the executable file of first program Function address；For second program when being compiled, what the entrance function address of second program was exported to second program can It performs in file；Before second subprocess calls the entrance function of second program, according to second program can Perform the entrance function address of the second program described in file acquisition.
- 11. a kind of device, which is characterized in that including：Starting module, for starting agent process, the agent process loads the dynamic link library that the agent process is linked To memory；Process creation module, for creating the first subprocess, first subprocess is by calling the entrance of first program Function loads first program；AndCreate the second subprocess, second subprocess is by calling the entrance function of second program, loading described second Program；Wherein, the memory that dynamic link library described in first program and second procedure sharing occupies.
- 12. device as claimed in claim 11, which is characterized in that the starting module be operating system in first into Journey is used to act on behalf of first process creation subprocess by the agent process that the starting module starts.
- 13. device as claimed in claim 11, which is characterized in that the process creation module is additionally operable to：By being used for The function of dynamic link library is opened, the dynamic link library is opened in first subprocess, wherein, the input ginseng of the function Number includes the filename of the dynamic link library；And/orBy being used to open the function of dynamic link library, the dynamic link library is opened in second subprocess, In, the input parameter of the function includes the filename of the dynamic link library.
- 14. device as claimed in claim 11, which is characterized in that first subprocess of the process creation module creation It is identical with the title of first program by the name modifications of first subprocess；And/orThe name modifications of second subprocess are and described the by second subprocess of the process creation module creation The title of two programs is identical.
- 15. device as claimed in claim 11, which is characterized in that the process creation module is additionally operable to：Create described first Before subprocess, the resource that cannot be inherited by first subprocess is closed；AndBefore creating second subprocess, the resource that cannot be inherited by second subprocess is closed.
- 16. device as claimed in claim 11, which is characterized in that first subprocess of the process creation module creation Before the entrance function for calling first program, environmental variance used in first program is reset；And/orBefore second subprocess of the process creation module creation calls the entrance function of second program, institute is reset State environmental variance used in the second program.
- 17. device as claimed in claim 11, which is characterized in that further include：Processing module for the data that will be changed by the function in the dynamic link library of first routine call, is deposited It is stored in the exclusive memory headroom of first subprocess；It and/or will be by the dynamic link library of second routine call The data changed of function, be stored in the exclusive memory headroom of second subprocess.
- 18. the device as any one of claim 11 to 17, which is characterized in that first program when being compiled, The entrance function address of first program is exported in the executable file of first program；The process creation module First subprocess created is with obtaining the entrance function of first program according to the executable file of first program Location；For second program when being compiled, what the entrance function address of second program was exported to second program can It performs in file；Second subprocess of the process creation module creation is obtained according to the executable file of second program Take the entrance function address of second program.
- 19. one or more computer-readable mediums, instruction is stored on the readable medium, described instruction is one or more When processor performs so that communication equipment performs the method as any one of claim 1-10.
- 20. a kind of device, including：One or more processors；AndOne or more computer-readable mediums are stored with instruction on the readable medium, and described instruction is by one or more When a processor performs so that described device performs the method as any one of claim 1-10.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611078446.1A CN108121594B (en) | 2016-11-29 | 2016-11-29 | Process management method and device |
| TW106126766A TW201820131A (en) | 2016-11-29 | 2017-08-08 | Process management method and apparatus |
| PCT/CN2017/111997 WO2018099292A1 (en) | 2016-11-29 | 2017-11-21 | Process management method and apparatus |
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| CN201611078446.1A CN108121594B (en) | 2016-11-29 | 2016-11-29 | Process management method and device |
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| CN108121594B CN108121594B (en) | 2020-10-20 |
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| CN (1) | CN108121594B (en) |
| TW (1) | TW201820131A (en) |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086136A (en) * | 2018-07-26 | 2018-12-25 | 广东浪潮大数据研究有限公司 | A kind of request processing method and relevant apparatus of Samba software |
| CN109408147A (en) * | 2018-10-22 | 2019-03-01 | 深圳市元征科技股份有限公司 | A kind of agreement determines method, system, device and readable storage medium storing program for executing |
| CN111083195A (en) * | 2019-11-12 | 2020-04-28 | 烽火通信科技股份有限公司 | Virtual single disk agent system and method |
| CN111596970A (en) * | 2020-05-12 | 2020-08-28 | 广州市百果园信息技术有限公司 | Dynamic library delay loading method, device, equipment and storage medium |
| CN113377543A (en) * | 2021-06-28 | 2021-09-10 | 上海商汤科技开发有限公司 | Task processing system, electronic device, and storage medium |
| CN114385261A (en) * | 2021-12-23 | 2022-04-22 | 湖南小算科技信息有限公司 | Method for loading program in process |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083998B (en) * | 2019-06-14 | 2024-05-17 | 中车株洲电力机车研究所有限公司 | Dynamic configuration method and device for task parameters in RTP of VxWorks system |
| CN112256339B (en) * | 2019-07-22 | 2023-11-03 | 百度在线网络技术（北京）有限公司 | Multi-process management method, device, electronic equipment and storage medium |
| CN113282380B (en) * | 2020-02-18 | 2024-05-24 | 深圳信可通讯技术有限公司 | Method, device and computer readable medium for calling multipath control interface |
| CN115309523A (en) * | 2022-07-28 | 2022-11-08 | 青岛云天励飞科技有限公司 | Data processing method and device, electronic equipment and storage medium |
| CN115589503A (en) * | 2022-10-28 | 2023-01-10 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted host startup animation implementation method, system, host and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382953A (en) * | 2008-09-19 | 2009-03-11 | 中兴通讯股份有限公司 | Interface system for accessing file system in user space and file reading and writing method |
| US20090113425A1 (en) * | 2007-10-30 | 2009-04-30 | Vmware, Inc. | Transparent Memory-Mapped Emulation of I/O Calls |
| CN101576912A (en) * | 2009-06-03 | 2009-11-11 | 中兴通讯股份有限公司 | System and reading and writing method for realizing asynchronous input and output interface of distributed file system |
| US20140282457A1 (en) * | 2013-03-13 | 2014-09-18 | Alex C. Chow | Systems And Methods For Embedded Shared Libraries In An Executable Image |
-
2016
- 2016-11-29 CN CN201611078446.1A patent/CN108121594B/en active Active
-
2017
- 2017-08-08 TW TW106126766A patent/TW201820131A/en unknown
- 2017-11-21 WO PCT/CN2017/111997 patent/WO2018099292A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090113425A1 (en) * | 2007-10-30 | 2009-04-30 | Vmware, Inc. | Transparent Memory-Mapped Emulation of I/O Calls |
| CN101382953A (en) * | 2008-09-19 | 2009-03-11 | 中兴通讯股份有限公司 | Interface system for accessing file system in user space and file reading and writing method |
| CN101576912A (en) * | 2009-06-03 | 2009-11-11 | 中兴通讯股份有限公司 | System and reading and writing method for realizing asynchronous input and output interface of distributed file system |
| US20140282457A1 (en) * | 2013-03-13 | 2014-09-18 | Alex C. Chow | Systems And Methods For Embedded Shared Libraries In An Executable Image |
Non-Patent Citations (3)
| Title |
|---|
| 刘生平 等: "桌面Linux 内存管理算法改进", 《系统工程与电子技术》 * |
| 杨紫薇 等: "某火控系统软件消息传递和DLL共享内存技术研究及应用", 《第二届中国指挥控制大会论文集——发展中的指挥与控制》 * |
| 王仁塘 等: "预加载共享动态链接库算法在桌面Linux环境下的设计与实现", 《干旱气象》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086136A (en) * | 2018-07-26 | 2018-12-25 | 广东浪潮大数据研究有限公司 | A kind of request processing method and relevant apparatus of Samba software |
| CN109408147A (en) * | 2018-10-22 | 2019-03-01 | 深圳市元征科技股份有限公司 | A kind of agreement determines method, system, device and readable storage medium storing program for executing |
| CN109408147B (en) * | 2018-10-22 | 2022-04-19 | 深圳市元征科技股份有限公司 | Protocol determination method, system, device and readable storage medium |
| CN111083195A (en) * | 2019-11-12 | 2020-04-28 | 烽火通信科技股份有限公司 | Virtual single disk agent system and method |
| CN111083195B (en) * | 2019-11-12 | 2022-09-13 | 烽火通信科技股份有限公司 | Virtual single disk proxy system and method |
| CN111596970A (en) * | 2020-05-12 | 2020-08-28 | 广州市百果园信息技术有限公司 | Dynamic library delay loading method, device, equipment and storage medium |
| CN111596970B (en) * | 2020-05-12 | 2023-04-28 | 广州市百果园信息技术有限公司 | Method, device, equipment and storage medium for dynamic library delay loading |
| CN113377543A (en) * | 2021-06-28 | 2021-09-10 | 上海商汤科技开发有限公司 | Task processing system, electronic device, and storage medium |
| CN114385261A (en) * | 2021-12-23 | 2022-04-22 | 湖南小算科技信息有限公司 | Method for loading program in process |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201820131A (en) | 2018-06-01 |
| WO2018099292A1 (en) | 2018-06-07 |
| CN108121594B (en) | 2020-10-20 |
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