CN103294405B - Data read-write method and electronic equipment - Google Patents
Data read-write method and electronic equipment Download PDFInfo
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Abstract
The invention discloses a kind of data read-write method and use the electronic equipment of the method.Described electronic equipment, including: the first hardware system, on it, operation has the first operating system；Second hardware system, on it, operation has the second operating system；First read-write control unit, is positioned in described first hardware system；Second read-write control unit, is positioned in described second hardware system；And multipor memory device；Wherein, described multipor memory device includes storage medium region, is used for storing data；First data-interface, is used for supporting first data transmission agreement；And second data-interface, for supporting the second Data Transport Protocol；Wherein, described first operating system and described second operating system carry out the read-write to described storage medium region via described first data-interface and/or described second data-interface respectively, wherein, described multipor memory device receives from the read/write operation to described storage medium region of first operating system via described first read-write control unit, control according to described first read-write control unit carries out the locking of the read/write to described storage medium region, to avoid described second operating system to clash when described storage medium region is carried out read/write operation.
Description
Technical field
The present invention relates to electronic device field, and be specifically related to a kind of data read-write method and use this number
Electronic equipment according to reading/writing method.
Background technology
In recent years, such as the electronic equipment of mobile phone, panel computer and personal digital assistant the most more comes
The most universal, it has light, to use simple touch control operation advantage, and it can easily realize online, play
Play, see video, read magazine etc. function.Along with the continuous enhancing of the hardware capability of electronic equipment,
Same electronic equipment has been able to support two operating systems (such as
Deng) run the most simultaneously.Additionally, have also appeared based on mixing (Hybrid) framework
Electronic apparatus system.Such as, occur in that by running
The X86 system of operating system and operationThe Hybrid system architecture that the ARM system of operating system is constituted.
At present, no matter it is on same terminal unit, to run two operating systems simultaneously or will be separately operable
In the case of having double terminal units of respective operating system, two operating systems are respectively provided with completely self-contained
Hard-disk system and storage medium, this not only brings the rising of size, cost, and is difficult to not homology
Effectively sharing and accessing in data between system.Have been proposed for a kind of there is multiple reading and writing data port
Storage device, thus realize the different operating system under Hybrid system architecture and read by each data respectively
Write port accesses the same storage medium shared between different operating system.But, at such multiport
The configuration of storage device is worked as, when different operating system while during the same target in access storage media, and can
The problem that data access conflicts can occur.Accordingly, it is desirable to provide a kind of data read-write method, it can be kept away
Exempt from the appearance of data access conflict during the same target in different operating system access storage media simultaneously.
Summary of the invention
Because above-mentioned situation, the invention provides a kind of data read-write method and use this reading and writing data side
The electronic equipment of method.
According to embodiments of the present invention, it is provided that a kind of data read-write method, it is applied to one and there is multiport
The electronic equipment of storage device, described electronics has the first hardware system and the second hardware system, and described the
One hardware system runs has the first operating system, described second hardware system to have the second operating system, institute
State multipor memory device and include the storage medium region for storing data, and support that the first data pass
At least two of the second data-interface of the first data-interface of transmission protocol and support the second Data Transport Protocol
Data-interface, described first operating system and described second operating system connect via described first data respectively
Mouth and/or described second data-interface carry out the read-write to described storage medium region, and described electronic equipment is also
Including the first read-write control unit and the second read-write control unit, described first read-write control unit is positioned at
First hardware system, the second read-write control unit is positioned at the second hardware system, described data read-write method bag
Include: described multipor memory device receives from the first operating system via described first read-write control unit
Read/write operation to described storage medium region, it is right to carry out according to the control of described first read-write control unit
The locking of the read/write in described storage medium region, to avoid described second operating system to described storage medium
Region carries out clashing during read/write operation.
Additionally, data read-write method according to embodiments of the present invention, wherein said multipor memory device warp
By described first read-write control unit receive from the first operating system to the reading in described storage medium region/
Write operation, carries out the read/write to described storage medium region according to the control of described first read-write control unit
Locking, generation during to avoid described second operating system that described storage medium region carries out read/write operation
Conflict includes: when described first operating system reads described storage medium district by described first data-interface
During the object stored in territory, described first read-write control unit performs to judge what whether described object was locked
Step, and obtain the first judged result, if object described in described first judgment result displays is not added
Locking or added the first read lock, the most described first read-write control unit is that described object adds the second read lock, holds
The row reading to described object, and release described second read lock after completing to read, if described the
Object described in one judgment result displays has been added writes lock, sentences described in the most described first read-write control unit return
Whether disconnected described object is locked the step of step；When described first operating system is by described first data
When interface writes the object of storage in described storage medium region, described first read-write control unit performs to sentence
The step whether disconnected described object is locked, and obtain the second judged result, if described second judges
Result shows that described object is not locked, and the most described first read-write control unit is that described object adds and writes lock,
Perform the write to described object, and write lock described in releasing after completing write, if described second
Object described in judgment result displays is by read lock or write lock, and the most described first read-write control unit returns institute
State the step judging whether described object is locked step.
Additionally, data read-write method according to embodiments of the present invention, wherein said first data-interface is
SATA interface, and described second data-interface is the one in MMC/SD/SDIO interface.
Additionally, data read-write method according to embodiments of the present invention, wherein first data transmission agreement and
Two Data Transport Protocols are same protocol, and described electronic equipment is via described first data-interface and described
Two data-interfaces carry out the read-write to described storage medium region simultaneously.
According to embodiments of the present invention, it is provided that a kind of electronic equipment, including: the first hardware system, on it
Operation has the first operating system；Second hardware system, on it, operation has the second operating system；First read-write
Control unit, is positioned in described first hardware system；Second read-write control unit, is positioned at described second hard
In part system；And multipor memory device；Wherein, described multipor memory device includes storage medium
Region, is used for storing data；First data-interface, is used for supporting first data transmission agreement；And the
Two data-interfaces, for supporting the second Data Transport Protocol；Wherein, described first operating system and described
Second operating system is carried out institute via described first data-interface and/or described second data-interface respectively
Stating the read-write in storage medium region, wherein, described multipor memory device is via described first Read-write Catrol
Unit receives from the read/write operation to described storage medium region of first operating system, according to described first
The control of read-write control unit carries out the locking of the read/write to described storage medium region, to avoid described
Two operating systems clash when described storage medium region is carried out read/write operation.
Additionally, electronic equipment according to embodiments of the present invention, wherein said multipor memory device is via institute
State the first read-write control unit reception from the first operating system, the read/write in described storage medium region to be grasped
Make, carry out the lock of read/write to described storage medium region according to the control of described first read-write control unit
Fixed, to avoid described second operating system to clash when described storage medium region is carried out read/write operation
Including: when described first operating system is read in described storage medium region by described first data-interface
During the object stored, described first read-write control unit performs to judge the step whether described object is locked,
And obtain the first judged result, if object described in described first judgment result displays is not locked or
Being added the first read lock, the most described first read-write control unit is that described object adds the second read lock, performs institute
State the reading of object, and release described second read lock after completing to read, if described first judges
Result shows that described object has been added and writes lock, and the most described first read-write control unit returns described in described judgement
Whether object is locked the step of step；When described first operating system is write by described first data-interface
When entering the object of storage in described storage medium region, it is described that described first read-write control unit performs judgement
The step whether object is locked, and obtain the second judged result, if described second judged result shows
Showing that described object is not locked, the most described first read-write control unit is that described object adds and writes lock, and it is right to perform
The write of described object, and after completing write, write lock described in releasing, if described second judges knot
Fruit show described object by read lock or write lock, the most described first read-write control unit returns described judgement
Whether described object is locked the step of step.
Additionally, electronic equipment according to embodiments of the present invention, wherein said first data-interface is SATA
Interface, and described second data-interface is the one in MMC/SD/SDIO interface.
Additionally, electronic equipment according to embodiments of the present invention, wherein first data transmission agreement and the second number
Being same protocol according to host-host protocol, described electronic equipment is via described first data-interface and described second number
Carry out the read-write to described storage medium region according to interface simultaneously.
The electronics of a kind of data read-write method according to embodiments of the present invention and this data read-write method of use sets
Standby, it is possible to data access conflict when avoiding the same target in different operating system simultaneously access storage media
Appearance.
It being understood that general description above and detailed description below are the most exemplary, and
And be intended to provide further illustrating of the technology claimed.
Accompanying drawing explanation
Fig. 1 is the Hybrid computer system of diagram prior art and uses multipor memory device
Hybrid computer system contrast block diagram；
Fig. 2 is the functional block diagram illustrating electronic equipment according to embodiments of the present invention；
Fig. 3 is the flow chart of the data read-write method according to embodiments of the present invention during diagram read operation；
And
Fig. 4 is the flow chart of the data read-write method according to embodiments of the present invention during diagram write operation.
Detailed description of the invention
Hereinafter, by preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.
First, the Hybrid computer system of prior art will be described with reference to Fig. 1 and use multiport storage
The Hybrid computer system of device.
Fig. 1 is the Hybrid computer system of diagram prior art and uses multipor memory device
Hybrid computer system contrast block diagram.The left side of Fig. 1 is the Hybrid computer system of prior art
200.In this Hybrid computer system 200, including X86 system processing unit X86201 with
And the processing unit ARM 202 of ARM system.X86 201 accesses as it via SATA interface 203
The SSD 205 of the memory area of self, and ARM 202 via SDIO 204 access as himself
The flash memory 206 of memory area.As it has been described above, two processing units can not be conveniently shared and access each
Memory area, particularly ARM system will be unable to access X86 system memory area.
The right side of Fig. 1 is the Hybrid computer system 300 using multipor memory device.It is noted that
It is that in the drawings, identical parts are with represented by identical reference.The left side of comparison diagram 2 and
Right side is visible, uses the place of the same X86 system of Hybrid computer system 300 of multipor memory device
Reason unit the X86 201 and processing unit ARM 202 of ARM system.Hybrid with prior art
Computer system 200 difference is, uses in the Hybrid computer system 300 of multipor memory device
The processing unit X86 201 of X86 system and the processing unit ARM 202 of ARM system the most each
From independent memory area.On the contrary, use multipor memory device Hybrid computer system 300 with
The flash memory 206 processing unit X86 201 as X86 system and the processing unit ARM of ARM system
202 public memory areas.A virtual memory layer 207 is included, at this virtual memory layer at flash memory 206
SATA interface 203 and SDIO 204 is encapsulated respectively on 207.Therefore, the processing unit X86 of X86 system
201 and the processing unit ARM 202 of ARM system respectively by the SATA on virtual memory layer 207
Interface 203 and SDIO 204 accesses the flash memory 206 as public memory area.So, it is achieved that
Effectively sharing and accessing in data between X86 system and ARM system.
In the above-mentioned Hybrid computer system 300 using multipor memory device described with reference to Fig. 1
In, if the processing unit X86 201 of X86 system and the processing unit ARM 202 of ARM system
Accessed as public by the SATA interface 203 and SDIO 204 on virtual memory layer 207 respectively simultaneously
Memory area flash memory 206 on same target time, in fact it could happen that data access conflict problem.Cause
This, require further improvement the electronic equipment utilizing multipor memory device, and provide corresponding data
Reading/writing method.
Electronic equipment according to embodiments of the present invention is specifically described next, with reference to Fig. 2.
Fig. 2 is the functional block diagram illustrating electronic equipment 10 according to embodiments of the present invention.As in figure 2 it is shown,
Electronic equipment 10 according to embodiments of the present invention includes the first hardware system 20 and the second hardware system 30.
Described first hardware system 20 and the second hardware system 30 correspond respectively to the X86 system shown in Fig. 1 and
ARM system.On described first hardware system 20 and the second hardware system 30, it is separately operable the first behaviour
Make system and the second operating system.Described first operating system and the second operating system are Windows respectively
Operating system and Android operation system.Electronic equipment 10 according to embodiments of the present invention also includes multiterminal
Mouth storage device 40.Described multipor memory device 40 has the first data-interface 22 and the second data connect
Mouth 32 and storage medium region.Described first data-interface 22 is the most corresponding with the second data-interface 32
In the SATA interface 203 and SDIO 204 shown in Fig. 1.Described storage medium region corresponds to Fig. 1 institute
The flash memory 206 as public memory area shown.Electronic equipment 10 according to embodiments of the present invention also wraps
Include the first read-write control unit 21 being positioned in described first hardware system 20 and be positioned at described second hard
The second read-write control unit 31 in part system 30.
In electronic equipment 10 according to embodiments of the present invention, described first operating system and described second behaviour
Make system to carry out described via described first data-interface 22 and/or described second data-interface 32 respectively
The read-write in storage medium region.In electronic equipment 10 according to embodiments of the present invention, in order to avoid occurring
The problem of data access conflict, described multipor memory device 40 is via described first read-write control unit
21 receive from the read/write operation to described storage medium region of first operating system, read according to described first
The control writing control unit 21 carries out the locking of the read/write to described storage medium region, described to avoid
Second operating system clashes when described storage medium region is carried out read/write operation.
Above, electronic equipment 10 according to embodiments of the present invention is described with reference to Fig. 2.Below with reference to figure
3 and Fig. 4 further describe the data read-write method used by electronic equipment 10 according to embodiments of the present invention.
Fig. 3 is the flow chart of the data read-write method according to embodiments of the present invention during diagram read operation.
As it is shown on figure 3, in step S301, described first read-write control unit 21 receives the first operating system
Reading order to storage medium region.Hereafter, process enters step S302.
In step s 302, described first read-write control unit 21 judges to be read right of reading order
Like no being locked, and obtain judged result.Hereafter, process enters step S303.
In step S303, it is judged that reading object described in described judgment result displays is locked the most.As
Fruit obtains positive result in step S303, then process and enter step S304.On the contrary, if in step
S303 obtains negative decision, then processes and enter step S305.
In step s 304, determine whether that described reading object is the most by read lock.If in step
S304 obtains positive result, then processes and enter step S305.On the contrary, if obtained in step s 304
Obtain negative decision (now, another operating system may be currently written into this reading object), then process and return to
Step S302.
In step S305, say, that when reading object described in described judgment result displays is not locked
Or when being added the first read lock (now, another operating system may read this reading object), described
First read-write control unit 21 adds the second read lock for described reading object, performs the reading of described reading object
Take, and release the second read lock after completing to read.
By the data read-write method shown in application drawing 3, when described multiport is stored by an operating system
When object in device 40 performs read operation, will first judge that this reading object has been locked.As
Really this reading object is not locked (not having operating system reading and writing this reading object) or by read lock
(there is the operating system reading this reading object), then will not be changed due to now reading object,
Described operating system can perform reading after to this reading object read lock, and completes it in reading
This read lock of rear releasing.On the contrary, if this reading object has been added and write lock and (have that to be currently written into this reading right
The operating system of elephant), then may be changed due to now reading object, described operating system will not perform
Read operation, but return the step of the locking state judging this reading object, thus avoid and reading
The mistake appearance that it is read out during being written over by object.
Fig. 4 is the flow chart of the data read-write method according to embodiments of the present invention during diagram write operation.
As shown in Figure 4, in step S401, described first read-write control unit 21 receives the first operating system
Writing commands to storage medium region.Hereafter, process enters step S402.
In step S402, described first read-write control unit 21 judges to be write right of writing commands
Like no being locked, and obtain judged result.Hereafter, process enters step S403.
In step S403, it is judged that described judgment result displays said write object is locked the most.As
Fruit obtains negative decision in step S403, then process and enter step S404.On the contrary, if in step
S403 obtains positive result (now, another operating system may read or write this write object),
Then process and return to step S402.
In step S402, say, that when described judgment result displays said write object is not locked
Time, described first read-write control unit 21 adds for said write object writes lock, performs said write object
Write, and after completing write, lock is write in releasing.
By the data read-write method shown in application drawing 4, when described multiport is stored by an operating system
When object in device 40 performs write operation, will first judge that this reading object has been locked.As
Really this reading object is not locked (not having operating system reading and writing this reading object), then owing to now reading
Take object will not be changed, described operating system can this write object is added write lock after perform write,
And complete to release this afterwards in write and write lock.Simultaneously as described operating system perform write time pair
This write object has added writes lock, and another operating system can not access this write object in this ablation process,
Until this is write lock and is released from.On the contrary, (exist if this reading object is locked and read or write
The operating system of this reading object), the most described operating system will not perform write operation, but return and judge
The step of the locking state of this write object, thus avoid at write object by other operating system
Mistake appearance during access, it write.
Describe a kind of data read-write method according to embodiments of the present invention above by reference to Fig. 1 to Fig. 4 and make
With the electronic equipment of this data read-write method, it is it can be avoided that different operating system access storage media simultaneously
In same target time data access conflict appearance.
It should be noted that in this manual, term " include ", " comprising " or its any other
Variant is intended to comprising of nonexcludability, so that include the process of a series of key element, method, thing
Product or equipment not only include those key elements, but also include other key elements being not expressly set out, or
It is also to include the key element intrinsic for this process, method, article or equipment.There is no more restriction
In the case of, statement " including ... " key element limited, it is not excluded that including described key element
Process, method, article or equipment in there is also other identical element.
Finally, in addition it is also necessary to explanation, above-mentioned a series of process not only include with order described here by
The process that time series performs, and include the place performed parallel or respectively rather than in chronological order
Reason.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive this
Bright can add the mode of required hardware platform by software and realize, naturally it is also possible to all be come by hardware
Implement.Based on such understanding, technical scheme background technology is contributed whole or
Part can embody with the form of software product, and this computer software product can be stored in storage and be situated between
In matter, such as ROM/RAM, magnetic disc, CD etc., instruct with so that a computer sets including some
Standby (can be personal computer, server, or the network equipment etc.) performs each embodiment of the present invention
Or the method described in some part of embodiment.
Above the present invention is described in detail, the specific case principle to the present invention used herein
And embodiment is set forth, the method that the explanation of above example is only intended to help to understand the present invention
And core concept；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention,
All will change in detailed description of the invention and range of application, in sum, this specification content should not
It is interpreted as limitation of the present invention.
Claims (8)
1. a data read-write method, is applied to a kind of electronic equipment with multipor memory device, institute
Stating electronic equipment and have the first hardware system and the second hardware system, described first hardware system runs the
One operating system, described second hardware system has the second operating system, described multipor memory device bag
Include the storage medium region for storing data, and support that the first data of first data transmission agreement connect
At least two data-interface of the second data-interface of mouth and support the second Data Transport Protocol, described first
Operating system and described second operating system are respectively via described first data-interface and/or described second number
Carrying out the read-write to described storage medium region according to interface, described electronic equipment also includes the first Read-write Catrol
Unit and the second read-write control unit, described first read-write control unit is positioned at the first hardware system, the
Two read-write control units are positioned at the second hardware system, and described data read-write method includes:
Described multipor memory device receives from the first operating system via described first read-write control unit
Read/write operation to described storage medium region, it is right to carry out according to the control of described first read-write control unit
The locking of the read/write in described storage medium region, to avoid described second operating system to described storage medium
Region carries out clashing during read/write operation,
Wherein read described storage medium region when described first operating system by described first data-interface
During the object of middle storage, described first read-write control unit performs to judge the step whether described object is locked
Suddenly, and obtain the first judged result,
If object described in described first judgment result displays is not locked or has been added the first read lock, then institute
Stating the first read-write control unit is that described object adds the second read lock, performs the reading to described object, and
Described second read lock is released after completing to read,
If object described in described first judgment result displays has been added writes lock, the most described first Read-write Catrol
Unit returns the described step judging whether described object is locked step.
2. data read-write method as claimed in claim 1, wherein said multipor memory device is via institute
State the first read-write control unit reception from the first operating system, the read/write in described storage medium region to be grasped
Make, carry out the lock of read/write to described storage medium region according to the control of described first read-write control unit
Fixed, to avoid described second operating system to clash when described storage medium region is carried out read/write operation
Also include:
Deposit in described first operating system is by the described first described storage medium region of data-interface write
During the object stored up, described first read-write control unit performs to judge the step whether described object is locked,
And obtain the second judged result,
If object described in described second judgment result displays is not locked, the most described first read-write control
Unit processed is that described object adds and writes lock, performs the write to described object, and solves after completing write
Lock is write described in removing,
If object described in described second judgment result displays is by read lock or write lock, the most described
One read-write control unit returns the described step judging whether described object is locked step.
3. data read-write method as claimed in claim 1, wherein said first data-interface is SATA
Interface, and described second data-interface is the one in MMC/SD/SDIO interface.
4. data read-write method as claimed in claim 1, wherein first data transmission agreement and the second number
Being same protocol according to host-host protocol, described electronic equipment is via described first data-interface and described second number
Carry out the read-write to described storage medium region according to interface simultaneously.
5. an electronic equipment, including:
First hardware system, on it, operation has the first operating system；
Second hardware system, on it, operation has the second operating system；
First read-write control unit, is positioned in described first hardware system；
Second read-write control unit, is positioned in described second hardware system；And
Multipor memory device；
Wherein, described multipor memory device includes
Storage medium region, is used for storing data；
First data-interface, is used for supporting first data transmission agreement；And
Second data-interface, for supporting the second Data Transport Protocol；
Wherein, described first operating system and described second operating system connect via described first data respectively
Mouth and/or described second data-interface carry out the read-write to described storage medium region,
Wherein, described multipor memory device receives from the first behaviour via described first read-write control unit
Make the system read/write operation to described storage medium region, according to the control of described first read-write control unit
Carry out the locking of read/write to described storage medium region, to avoid described second operating system to deposit described
Storage media region carries out clashing during read/write operation,
Wherein read described storage medium region when described first operating system by described first data-interface
During the object of middle storage, described first read-write control unit performs to judge the step whether described object is locked
Suddenly, and obtain the first judged result,
If object described in described first judgment result displays is not locked or has been added the first read lock, then institute
Stating the first read-write control unit is that described object adds the second read lock, performs the reading to described object, and
Described second read lock is released after completing to read,
If object described in described first judgment result displays has been added writes lock, the most described first Read-write Catrol
Unit returns the described step judging whether described object is locked step.
6. electronic equipment as claimed in claim 5, wherein said multipor memory device is via described the
One read-write control unit receives from the read/write operation to described storage medium region of first operating system, root
The locking of read/write to described storage medium region is carried out according to the control of described first read-write control unit, with
Avoid described second operating system to clash when described storage medium region is carried out read/write operation also to wrap
Include:
Deposit in described first operating system is by the described first described storage medium region of data-interface write
During the object stored up, described first read-write control unit performs to judge the step whether described object is locked,
And obtain the second judged result,
If object described in described second judgment result displays is not locked, the most described first read-write control
Unit processed is that described object adds and writes lock, performs the write to described object, and solves after completing write
Lock is write described in removing,
If object described in described second judgment result displays is by read lock or write lock, the most described
One read-write control unit returns the described step judging whether described object is locked step.
7. electronic equipment as claimed in claim 5, wherein said first data-interface is SATA interface,
And described second data-interface is the one in MMC/SD/SDIO interface.
8. electronic equipment as claimed in claim 5, wherein first data transmission agreement and the second data pass
Transmission protocol is same protocol, and described electronic equipment connects via described first data-interface and described second data
Mouth carries out the read-write to described storage medium region simultaneously.
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| CN104050200B (en) * | 2013-03-15 | 2017-12-08 | 伊姆西公司 | Method and apparatus for data copy |
| CN103701883B (en) * | 2013-12-18 | 2018-01-12 | 华为技术有限公司 | Streaming Media fragment injects method, equipment and the caching system of caching system |
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| CN101884071A (en) * | 2007-12-06 | 2010-11-10 | 晶像股份有限公司 | Bank sharing and refresh in a shared multi-port memory device |
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