CN105607921A - System service startup method and system based on Android system - Google Patents
System service startup method and system based on Android system Download PDFInfo
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- CN105607921A CN105607921A CN201510714978.9A CN201510714978A CN105607921A CN 105607921 A CN105607921 A CN 105607921A CN 201510714978 A CN201510714978 A CN 201510714978A CN 105607921 A CN105607921 A CN 105607921A
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Abstract
The invention discloses a system service startup method and system based on an Android system. The method comprises the following steps: transferring system service to be operated in a single process, and solving the problems of startup time and synchronization generated after transfer; transferring customized service to be operated in the single process; and transferring the service with a simple dependency relationship in Android primary service to be operated in the single process. The system service startup method optimizes system startup speed and shortens startup time, and system service can be simultaneously compatible with 64bit and 32 bit to operate the single system service process.
Description
Technical field
The present invention relates to consumer electronics field, relate in particular to a kind of system service based on Android system and startMethod and system.
Background technology
System service specially refers to the various java layer service starting in system_server process in Android system, theseService all provides api interface to use to application program or other module by its corresponding Manager object, makes to apply journeySystem resource or physical layer interface that other module of order and system can not directly be accessed by this service access application program.
Along with the development trend of consumer electronics field core processing unit 64bit in recent years, Android develops into 5.0 versionsStart progressively to support 64bit computing. But each intelligent terminal (mobile phone, TV, vehicle-mounted etc.) manufacturer, for android'sCustomized development is developed based on 32bit mostly. For application program, the application program of the pure java of part can be direct64bit operation, containing the local C/C++ of Native() storehouse can compatible 32bit operation, or do a small amount of amendment and can normally move.
But, starting to the 5.0 current stages from android, many manufacturers are through developing for many years the comparison of accumulation, reconstructStable system service need to move with 32bit for a certain reason. Although holding concurrently of the various collocation of Android support 64/32Hold operational mode, but generally system service is all to operate in a process of being SystemServer, this processCan operate under 32bit or 64bit pattern, can not support 64bit and 32bit service simultaneously.
32bit operation is only supported in custom-built system service, but must meet whole system 64it operation, adopts application program serviceType, startup is more late opportunity, causes the available machine time elongated, many starting up's application program operation exceptions;
Custom-built system service starts operation in SystemServer, causes SystemServer elongated start-up time, furtherCause the available machine time elongated.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of the deficiencies in the prior art, the object of the invention is to provide a kind of system service based on Android system to openMoving method and system, 32bit is only supported in the custom-built system service in prior art that is intended to solve, can not move with system 64bit, withTime custom-built system service long defect start-up time.
Technical scheme of the present invention is as follows:
A system service starting method based on Android system, wherein, method comprises:
The first software program of A, a simulation system_server process context of establishment, creates customization at the first software programThe primary service object of service object and Android, adds service to system service list and carries out the first software program;
B, add the first software program to android_aosp source code, be configured to a system jar bag, add system to and startIn load libraries BOOT_CLASSPATH;
The booting script of C, establishment the first software program, and in system booting script, add the script that starts the first software programContent, the first software program is starting in specific startup opportunity;
When D, Android system boot, the process system_server that the first software program and Android system carry is parallelStart operation.
The described system service starting method based on Android system, wherein, described steps A specifically comprises:
The first software program of A1, a simulation system_server process context of establishment;
The major cycle body of A2, establishment the first software program;
On A3, main program on the first software program, create respectively Android system context object, customize services object andThe primary service object of Android;
A4, detection servicemanager process, judge whether the first software program can add the first software program and serveSystem service list, if can add, adds the first software program and serves system service list;
The major cycle of A5, execution the first software program main program.
The described system service starting method based on Android system, wherein, described step C specifically comprises:
The booting script of C1, establishment the first software program, makes the process of booting script move with 32bit;
C2, in Android system booting script, add and start the content for script of the first software program, the first software program is being openedWhen machine by init process initiation.
The described system service starting method based on Android system, wherein, described step C specifically comprises:
The booting script of C11, establishment the first software program, the process of booting script relies on the system property of Android systemThe value of sys.startS, the process of booting script is moved with 32bit;
C12, in Android system, add and start the content for script of the first software program;
C13, be 1 o'clock in the value of the system property sys.startS that Android system detected, start the first software program.
The described system service starting method based on Android system, wherein, described step D specifically comprises:
When D1, Android system boot, the primary startup flow process of Android system does not change, init process respectively with64bit/32bit starts two zygote processes and is respectively zygote64 and zygote;
D2, Android system default 64bit, zygote64 simulation system kernel service process system_server, zyogteThe compatible 32bit application program operation of process;
Parallel the opening of process system_server of the 64bit that the first software program of D3,32bit and Android system carryMoving operation.
System service based on Android system starts a system, and wherein, system comprises:
Program creation module, for creating the first software program of a simulation system_server process context, soft firstPart program creation customize services object and the primary service object of Android, add service to system service list and carry out firstSoftware program;
Program is added module, for adding the first software program to android_aosp source code, is configured to a system jarBag, adds in system start-up loading storehouse BOOT_CLASSPATH;
Booting script creation module for creating the booting script of the first software program, and is added and is opened in system booting scriptThe content for script of moving the first software program, the first software program is starting in specific startup opportunity;
Parallel running module, during for Android system boot, the process that the first software program and Android system carryThe operation of system_server parallel starting.
The described system service based on Android system starts system, and wherein, described program creation module is specifically wrappedDraw together:
Software program creating unit, for creating the first software program of a simulation system_server process context;
Major cycle creating unit, for creating the major cycle body of the first software program;
Service object's creating unit, for creating respectively Android system context on the main program on the first software programObject, customize services object and the primary service object of Android;
Detect and judging unit, for detection of servicemanager process, judge whether the first software program can add theOne software program is served system service list, if can add, adds the first software program and serves system service list;
Performance element, for carrying out the major cycle of the first software program main program.
The described system service based on Android system starts system, and wherein, described booting script creation module is concreteComprise:
The first booting script creating unit, for creating the booting script of the first software program, the process that makes booting script with32bit operation;
The first booting script adding device, for adding the pin that starts the first software program at Android system booting scriptThis content, the first software program in when start by init process initiation.
The described system service based on Android system starts system, and wherein, described booting script creation module is concreteComprise:
The second booting script creating unit, for creating the booting script of the first software program, the process of booting script relies onThe value of the system property sys.startS of Android system, the process of booting script is moved with 32bit;
The second booting script adding device, for adding the content for script that starts the first software program in Android system;
Detecting and start unit, is 1 o'clock for the value at the system property sys.startS that Android system detected, startsThe first software program.
The described system service based on Android system starts system, and wherein, described parallel running module is specifically wrappedDraw together:
Process initiation unit, during for Android system boot, the primary startup flow process of Android system does not change, initProcess starts two zygote processes with 64bit/32bit respectively and is respectively zygote64 and zygote;
Process running unit, for Android system default 64bit, zygote64 simulation system kernel service processSystem_server, the compatible 32bit application program operation of zyogte process;
Parallel starting unit, the process of the 64bit carrying for the first software program and the Android system of 32bitThe operation of system_server parallel starting.
Beneficial effect: the system service starting method based on Android system provided by the invention, can optimizeAndroid system start-up time; Realize Android system service 64bit/32bit compatibility operation; Shorten Android customizationSystem service extends system start-up time.
Brief description of the drawings
Fig. 1 is the flow process of the preferred embodiment of a kind of system service starting method based on Android system of the present inventionFigure.
Fig. 2 is the function that a kind of system service based on Android system of the present invention starts the preferred embodiment of systemTheory diagram.
Detailed description of the invention
For making object of the present invention, technical scheme and effect clearer, clear and definite, below the present invention is further said in detailBright. Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of flow process of preferred embodiment of the system service starting method based on Android systemFigure, as shown in Figure 1, described method comprises:
The first software program of step S100, a simulation system_server process context of establishment, in the first software program woundBuild the primary service object of customize services object and Android, add service to system service list and carry out the first software program.
Android system service is generally by the subprocess system_server process initiation of zygote process, and is stringRow starts, and after startup, moves with thread form; Android system user space processes is all that init enters by init process initiationJourney can start according to booting script init.rc each process of user's space; As zygote, servicemanager etc.;Android system is safeguarded a system service list by servicemanager process, based on this mechanism application program and systemSystem service object can be added or obtain to service, further uses the function of system service.
Therefore we are by creating first software program that can simulate the environment of system_server process, alsoBe called software program S, this software can build java object and be added in system service list. In the first software journeyOrder creates customize services object and the primary service object of Android, adds service to system service list and carries out the first softwareProgram.
Step S200, add the first software program to android_aosp source code, be configured to a system jar bag, addBe added in system start-up loading storehouse BOOT_CLASSPATH.
When concrete enforcement, the androidaosp source code that software program is added, and add its structure partial function, by itBe configured to a system jar bag, and add in system start-up loading storehouse BOOT_CLASSPATH.
The booting script of step S300, establishment the first software program, and it is soft in system booting script, to add startup firstThe content for script of part program, the first software program is starting in specific startup opportunity.
When concrete enforcement, create the booting script of the first software program, and add and start first in system booting scriptThe content for script of software program, the first software program is starting in specific startup opportunity. Startup undetermined opportunity can be according to useFamily need to be set. And the first software program is with 32bit operation, thereby can support the custom-built system service of 32bit.
When step S400, Android system boot, the process system_ that the first software program and Android system carryThe operation of server parallel starting.
When concrete enforcement, when Android system boot, the primary startup flow process of Android system does not change, and init dividesDo not start two zygote processes with 64bit/32bit and be respectively zygote64 (64bit incubator) and zygote (incubator(acquiescence 32bit)), if system default 64bit, therefore zygote64 clones system core service processes system_server,Zyogte process is for compatible 32bit application program operation, the first software program of 32bit and the system_ of 64bitThe operation of server parallel starting.
Further, in embodiment, described step S100 specifically comprises:
The first software program of step S101, a simulation system_server process context of establishment;
The major cycle body of step S102, establishment the first software program;
On step S103, main program on the first software program, create respectively Android system context object, customize servicesThe primary service object of object and Android;
Step S104, detection servicemanager process, judge whether the first software program can add the first software programService, to system service list, if can add, is added the first software program and is served system service list;
The major cycle of step S105, execution the first software program main program.
When concrete enforcement, develop first software program, it can simulate the environment of system_server process, canTo build java object and to be added to system service list, create the major cycle body of the first software program main program, wound is firstSystem context object, creates customize services object at the main program of the first software program, at the main program of the first software programCreate the primary service of Android (its dependence is simple) object, whether inspection wait servicemanager process canAdd service to system service list, add service to system service list, carry out the major cycle of the first software program main program.
Further, in embodiment, in described step S300, the first program has two kinds of situations in startup opportunity, and one is outMachine is by init process initiation, and also having a kind of is that the value of the system property sys.startS by judging Android system is enteredRow starts.
If startup is that start is by init process initiation opportunity, step S300 specifically comprises:.
The booting script of step S301, establishment the first software program, makes the process of booting script move with 32bit;
Step S302, in Android system booting script, add and start the content for script of the first software program, the first software journeyOrder in when start by init process initiation.
When concrete enforcement, create the booting script of the first software program, the first software program is designated as software program S, makes itProcess is moved with 32bit, for example:
serviceS/system/bin/app_process32/system/bin/com.t.demo.S
In system booting script, add and start the content for script of the first software program, make the first software program in the time of start byInit process initiation.
And the value that starts the system property sys.startS of opportunity by judging Android system when the first program is carried outStart, so described step S300 specifically comprises:
The booting script of step S311, establishment the first software program, the system that the process of booting script relies on Android system belongs toThe value of property sys.startS, the process of booting script is moved with 32bit;
Step S312, in Android system, add and start the content for script of the first software program;
Step S313, be 1 o'clock in the value of the system property sys.startS that Android system detected, start the first software journeyOrder.
When concrete enforcement, create the booting script of the first software program, the first software program is designated as software program S, makes itProcess relies on the value of system property sys.startS, and for example, with 32bit operation:
serviceS/system/bin/app_process32/system/bin/com.t.demo.S
disabled
oneshot
In system booting script, add the content for script that starts software program S, but depend on system property sys.startS=1, for example:
onproperty:sys.startS=1
startS
For example, at a certain starter node of the system sys.startS=1 that sets a property, when system_server starts to carry out. And theOne software program starts to carry out in the time of sys.startS=1.
Further, in embodiment, wherein step S400 specifically comprises:
When step S401, Android system boot, the primary startup flow process of Android system does not change, and init process respectivelyStart two zygote processes with 64bit/32bit and be respectively zygote64 and zygote;
Step S402, Android system default 64bit, zygote64 simulation system kernel service process system_server,The compatible 32bit application program operation of zyogte process;
The process system_server of the 64bit that the first software program of step S403,32bit and Android system carryParallel starting operation.
When concrete enforcement, the primary startup flow process of Android system does not change, and init opens with 64bit/32bit respectivelyMoving two zygote processes are respectively zygote64 and zygote, and system default 64bit, therefore zygote64 clones systemKernel service process system_server, zyogte process is for compatible 32bit application program operation; The first software of 32bitThe system_server parallel starting operation of program and 64bit, has solved system service 64bit/32bit compatibling problem, alsoShorten the available machine time simultaneously.
From above embodiment of the method, the invention provides a kind of system service starting method based on Android system, logicalCross system service is transferred to single process operation, and solve the startup opportunity and the stationary problem that shift rear existence; To customize clothesBusiness is transferred in independent process and is moved; Simple dependence in primary android service service is transferred to independent enteringIn journey, move. Optimization system toggle speed of the present invention, shortens the available machine time; Make system service simultaneously compatible 64bit and32bit moves the starting method of independent system service process.
On the basis of said method embodiment, the present invention also provides a kind of system service based on Android systemThe functional schematic block diagram of the preferred embodiment of startup system, as shown in Figure 2, described system comprises:
Program creation module 100, for creating the first software program of a simulation system_server process context, theOne software program creates customize services object and the primary service object of Android, adds service to system service list and carries outThe first software program; As detailed above.
Program is added module 200, for adding the first software program to android_aosp source code, is configured to a systemSystem jar bag, adds in system start-up loading storehouse BOOT_CLASSPATH; As detailed above.
Booting script creation module 300, for creating the booting script of the first software program, and in system booting scriptAdd the content for script that starts the first software program, the first software program is starting in specific startup opportunity; Specifically as above instituteState.
Parallel running module 400, during for Android system boot, the first software program and Android system carryThe operation of process system_server parallel starting; As detailed above.
The described system service based on Android system starts system, and wherein, described program creation module is specifically wrappedDraw together:
Software program creating unit, for creating the first software program of a simulation system_server process context; SpecificallyAs mentioned above.
Major cycle creating unit, for creating the major cycle body of the first software program; As detailed above.
Service object's creating unit, for creating respectively Android system on the main program on the first software programBelow object, customize services object and the primary service object of Android; As detailed above.
Detect and judging unit, for detection of servicemanager process, judge whether the first software program can addAdd the first software program and serve system service list, if can add, add the first software program and serve system serviceList; As detailed above.
Performance element, for carrying out the major cycle of the first software program main program; As detailed above.
The described system service based on Android system starts system, and wherein, described booting script creation module is concreteComprise:
The first booting script creating unit, for creating the booting script of the first software program, the process that makes booting script with32bit operation; As detailed above.
The first booting script adding device, for adding and start the first software program at Android system booting scriptContent for script, the first software program in when start by init process initiation; As detailed above.
The described system service based on Android system starts system, and wherein, described booting script creation module is concreteComprise:
The second booting script creating unit, for creating the booting script of the first software program, the process of booting script relies onThe value of the system property sys.startS of Android system, the process of booting script is moved with 32bit; As detailed above.
The second booting script adding device, in Android system is added the script that starts the first software programHold; As detailed above.
Detecting and start unit, is 1 o'clock for the value at the system property sys.startS that Android system detected,Start the first software program; As detailed above.
The described system service based on Android system starts system, and wherein, described parallel running module is specifically wrappedDraw together:
Process initiation unit, during for Android system boot, the primary startup flow process of Android system does not change, initProcess starts two zygote processes with 64bit/32bit respectively and is respectively zygote64 and zygote; As detailed above.
Process running unit, for Android system default 64bit, zygote64 simulation system kernel service processSystem_server, the compatible 32bit application program operation of zyogte process; As detailed above.
Parallel starting unit, the process of the 64bit carrying for the first software program and the Android system of 32bitThe operation of system_server parallel starting; As detailed above.
In sum, the invention provides a kind of system service starting method and system based on Android system, described inMethod comprises: create the first software program of a simulation system_server process context, the first software program is added toAndroidaosp source code, is configured to a system jar bag, adds in system start-up loading storehouse BOOT_CLASSPATH; , woundBuild the booting script of the first software program, and add the content for script that starts the first software program in system booting script, theOne software program is starting in specific startup opportunity; When Android system boot, the first software program and Android systemThe process system_server parallel starting operation carrying. The present invention can optimize Android system start-up time; RealizeAndroid system service 64bit/32bit compatibility operation; Shorten the service of Android custom-built system and extend system start-up time.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, and canTo be improved according to the above description or to convert, all these improvement and conversion all should belong to the guarantor of claims of the present inventionProtect scope.
Claims (10)
1. the system service starting method based on Android system, is characterized in that, method comprises:
The first software program of A, a simulation system_server process context of establishment, creates customization at the first software programThe primary service object of service object and Android, adds service to system service list and carries out the first software program;
B, add the first software program to android_aosp source code, be configured to a system jar bag, add system to and startIn load libraries BOOT_CLASSPATH;
The booting script of C, establishment the first software program, and in system booting script, add the script that starts the first software programContent, the first software program is starting in specific startup opportunity;
When D, Android system boot, the process system_server that the first software program and Android system carry is parallelStart operation.
2. the system service starting method based on Android system according to claim 1, is characterized in that described stepRapid A specifically comprises:
The first software program of A1, a simulation system_server process context of establishment;
The major cycle body of A2, establishment the first software program;
On A3, main program on the first software program, create respectively Android system context object, customize services object andThe primary service object of Android;
A4, detection servicemanager process, judge whether the first software program can add the first software program and serveSystem service list, if can add, adds the first software program and serves system service list;
The major cycle of A5, execution the first software program main program.
3. the system service starting method based on Android system according to claim 2, is characterized in that described stepRapid C specifically comprises:
The booting script of C1, establishment the first software program, makes the process of booting script move with 32bit;
C2, in Android system booting script, add and start the content for script of the first software program, the first software program is being openedWhen machine by init process initiation.
4. the system service starting method based on Android system according to claim 2, is characterized in that described stepRapid C specifically comprises:
The booting script of C11, establishment the first software program, the process of booting script relies on the system property of Android systemThe value of sys.startS, the process of booting script is moved with 32bit;
C12, in Android system, add and start the content for script of the first software program;
C13, be 1 o'clock in the value of the system property sys.startS that Android system detected, start the first software program.
5. according to the system service starting method based on Android system described in claim 3 or 4, it is characterized in that, described inStep D specifically comprises:
When D1, Android system boot, the primary startup flow process of Android system does not change, init process respectively with64bit/32bit starts two zygote processes and is respectively zygote64 and zygote;
D2, Android system default 64bit, zygote64 simulation system kernel service process system_server, zyogteThe compatible 32bit application program operation of process;
Parallel the opening of process system_server of the 64bit that the first software program of D3,32bit and Android system carryMoving operation.
6. the system service based on Android system starts a system, it is characterized in that, system comprises:
Program creation module, for creating the first software program of a simulation system_server process context, soft firstPart program creation customize services object and the primary service object of Android, add service to system service list and carry out firstSoftware program;
Program is added module, for adding the first software program to android_aosp source code, is configured to a system jarBag, adds in system start-up loading storehouse BOOT_CLASSPATH;
Booting script creation module for creating the booting script of the first software program, and is added and is opened in system booting scriptThe content for script of moving the first software program, the first software program is starting in specific startup opportunity;
Parallel running module, during for Android system boot, the process that the first software program and Android system carryThe operation of system_server parallel starting.
7. the system service based on Android system according to claim 6 starts system, it is characterized in that described journeyOrder creation module specifically comprises:
Software program creating unit, for creating the first software program of a simulation system_server process context;
Major cycle creating unit, for creating the major cycle body of the first software program;
Service object's creating unit, for creating respectively Android system context on the main program on the first software programObject, customize services object and the primary service object of Android;
Detect and judging unit, for detection of servicemanager process, judge whether the first software program can add theOne software program is served system service list, if can add, adds the first software program and serves system service list;
Performance element, for carrying out the major cycle of the first software program main program.
8. the system service based on Android system according to claim 7 starts system, it is characterized in that, described in openMoving script creation module specifically comprises:
The first booting script creating unit, for creating the booting script of the first software program, the process that makes booting script with32bit operation;
The first booting script adding device, for adding the pin that starts the first software program at Android system booting scriptThis content, the first software program in when start by init process initiation.
9. the system service based on Android system according to claim 7 starts system, it is characterized in that, described in openMoving script creation module specifically comprises:
The second booting script creating unit, for creating the booting script of the first software program, the process of booting script relies onThe value of the system property sys.startS of Android system, the process of booting script is moved with 32bit;
The second booting script adding device, for adding the content for script that starts the first software program in Android system;
Detecting and start unit, is 1 o'clock for the value at the system property sys.startS that Android system detected, startsThe first software program.
10. the system service based on Android system according to claim 8 or claim 9 starts system, it is characterized in that instituteStating parallel running module specifically comprises:
Process initiation unit, during for Android system boot, the primary startup flow process of Android system does not change, initProcess starts two zygote processes with 64bit/32bit respectively and is respectively zygote64 and zygote;
Process running unit, for Android system default 64bit, zygote64 simulation system kernel service processSystem_server, the compatible 32bit application program operation of zyogte process;
Parallel starting unit, the process of the 64bit carrying for the first software program and the Android system of 32bitThe operation of system_server parallel starting.
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