CN103309871B - File read/write method and electronic equipment - Google Patents
File read/write method and electronic equipment Download PDFInfo
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- CN103309871B CN103309871B CN201210061607.1A CN201210061607A CN103309871B CN 103309871 B CN103309871 B CN 103309871B CN 201210061607 A CN201210061607 A CN 201210061607A CN 103309871 B CN103309871 B CN 103309871B
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Abstract
The invention discloses a kind of file read/write method and use the electronic equipment of the method.Described file read/write method, it is applied to a kind of electronic equipment with storage device, described storage device includes file system management unit, for storing storage medium region and the data-interface of data, described file read/write method includes: described storage device via described data-interface receive from electronic equipment to the read write command of file in storage medium region；Described file system management unit, based on described read write command, obtains described file address in described storage medium region；And via described data-interface, the read-write result being pointed to the described file of described address is sent to electronic equipment.
Description
Technical field
The present invention relates to electronic device field, and be specifically related to a kind of file read/write method and use this document read-write side
The electronic equipment of method.
Background technology
In recent years, such as the electronic equipment of mobile phone, panel computer and personal digital assistant is more and more universal, its
Having light, to use simple touch control operation advantage, it can easily realize online, object for appreciation game, see video, reading magazine etc.
Function.Along with the continuous enhancing of the hardware capability of electronic equipment, same electronic equipment has been able to support that two operating systems are (all
As Deng) run the most simultaneously.Additionally, have also appeared based on mixing
(Hybrid) electronic apparatus system of framework.Such as, occur in that by runningThe X86 system of operating system and fortune
OKThe Hybrid system architecture that the ARM system of operating system is constituted.At present, no matter it is on same terminal unit
Run in the case of two operating systems still will be separately operable double terminal units of respective operating system, two operations simultaneously
System is respectively provided with completely self-contained hard-disk system and storage medium, and this not only brings the rising of size, cost, and is difficult to reality
Effectively sharing and accessing in data between existing different system.Have been proposed for a kind of storage with multiple reading and writing data port
Device, thus realize the different operating system under Hybrid system architecture and access difference behaviour by each reading and writing data port respectively
Make the same storage medium shared between system.
Additionally, storage device of the prior art typically uses SATA or scsi interface, operating system directly passes through SATA
Or SCSI protocol accesses storage device, the access to storage device is the minimum access unit (sector or the page) storing device
Carry out.Operating system needs to realize file system on upper strata, manages storage number on the storage means by file system
According to.At present, solid state hard disc (SSD) increased popularity based on Flash, the trend of big substituted conventional hard storage device.SSD deposits
The processor of oneself it is generally of inside storage device, it is therefore desirable to provide a kind of file read/write method and use this document read-write side
The storage device of method, storage device is internal the most now performs file system management function, and externally directly provides file operation
Interface.Additionally, when the file in this storage device is accessed by different operating system simultaneously, this literary composition within storage device
Part system management function it can be avoided that file read-write conflict appearance.
Summary of the invention
Because above-mentioned situation, the invention provides a kind of file read/write method and use the electronics of this document reading/writing method
Equipment.
According to embodiments of the present invention, it is provided that a kind of file read/write method, it is applied to a kind of electronics with storage device
Equipment, described storage device includes file system management unit, for storing storage medium region and the data-interface of data,
Described file read/write method includes: described storage device via described data-interface receive from electronic equipment to storage medium
The read write command of file in region；Described file system management unit, based on described read write command, obtains described file described
Address in storage medium region；And the read-write result of the described file of described address will be pointed to via described data-interface
It is sent to electronic equipment.
Additionally, file read/write method according to embodiments of the present invention, wherein, described electronics has the first hardware system and
Two hardware systems, described first hardware system runs has the first operating system, described second hardware system to have the second operation system
System, described data-interface at least includes the first data sub-interface supporting first data transmission agreement and supports the second data transmission
Second data sub-interface of agreement, described first operating system and described second operating system are respectively via described first data
Interface and/or described second data sub-interface carry out the read-write to described storage medium region, wherein said file read/write method
Also include: described storage device receives from first in electronic equipment via the first data sub-interface in described data-interface
Operating system to the read write command of file in storage medium region；And described file system management unit is based on described read-write
Order, obtains described file address in described storage medium region, and controls described file at described storage medium
Described address in region carries out the locking of read/write, to avoid described second operating system that described file is carried out read/write operation
Time clash.
Additionally, file read/write method according to embodiments of the present invention, wherein said file system management unit controls institute
State the file described address in described storage medium region and carry out the locking of read/write, to avoid described second operating system pair
Described file carries out clashing during read/write operation including:
When described first operating system reads storage in described storage medium region by described first data sub-interface
During file, described file system management unit performs to judge the step whether described file is locked, and obtains the first judgement
As a result, if file described in described first judgment result displays is not locked or has been added the first read lock, the most described file system
Administrative unit is that described file adds the second read lock, performs the reading to described file, and releases described after completing to read
Second read lock, if file described in described first judgment result displays has been added writes lock, the most described file system management unit returns
Return the described step judging whether described file is locked step；When described first operating system is by described first data-interface
When writing in described storage medium region the file of storage, described file system management unit perform to judge described file whether by
The step locked, and obtain the second judged result, if file described in described second judgment result displays is not locked, then institute
Stating file system management unit is that described file adds and writes lock, performs the write to described file, and solves after completing write
Lock is write described in removing, if file described in described second judgment result displays is by read lock or write lock, the most described file system pipe
Reason unit returns the described step judging whether described file is locked step.
Additionally, file read/write method according to embodiments of the present invention, wherein said first data sub-interface is SATA interface,
And described second data sub-interface is the one in MMC/SD/SDIO interface.
Additionally, file read/write method according to embodiments of the present invention, wherein first data transmission agreement and the second data pass
Transmission protocol is same protocol, and it is right that described electronic equipment is carried out via described first data-interface and described second data-interface simultaneously
The read-write in described storage medium region.
According to another embodiment of the present invention, it is provided that a kind of electronic equipment, including: the first hardware system, it runs
There is the first operating system；Second hardware system, on it, operation has the second operating system；And storage device；Wherein, described storage
Device includes file system management unit, for storing the storage medium region of data, and data-interface, wherein, described in deposit
Storage device via described data-interface receive from electronic equipment to the read write command of file in storage medium region；Described literary composition
Part System Management Unit, based on described read write command, obtains described file address in described storage medium region；And warp
By described data-interface, the read-write result being pointed to the described file of described address is sent to electronic equipment.
Additionally, electronic equipment according to embodiments of the present invention, wherein said data-interface at least includes supporting the first data
First data sub-interface of host-host protocol and the second data sub-interface of support the second Data Transport Protocol, described first operation system
System and described second operating system are carried out institute via described first data sub-interface and/or described second data sub-interface respectively
Stating the read-write in storage medium region, wherein, described storage device receives via the first data sub-interface in described data-interface
From the first operating system in electronic equipment to the read write command of file in storage medium region；And described file system
Administrative unit, based on described read write command, obtains described file address in described storage medium region, and controls institute
State the file described address in described storage medium region and carry out the locking of read/write, to avoid described second operating system pair
Described file carries out clashing during read/write operation.
Additionally, electronic equipment according to embodiments of the present invention, wherein said file system management unit controls described literary composition
The part described address in described storage medium region carries out the locking of read/write, to avoid described second operating system to described
File carries out clashing during read/write operation including: when described first operating system is read by described first data sub-interface
During the file stored in described storage medium region, described file system management unit performs to judge whether described file is locked
Step, and obtain the first judged result, if file described in described first judgment result displays is not locked or is added
First read lock, the most described file system management unit is that described file adds the second read lock, performs the reading to described file, and
Described second read lock is released, if file described in described first judgment result displays has been added writes lock, then after completing to read
Described file system management unit returns the described step judging whether described file is locked step；When described first operation system
When system writes the file of storage in described storage medium region by described first data-interface, described file system management unit
Perform to judge the step whether described file is locked, and obtain the second judged result, if described second judged result shows
Showing that described file is not locked, the most described file system management unit is that described file adds and writes lock, performs to write described file
Enter, and write lock, if file is by read lock described in described second judgment result displays described in releasing after completing write
Or write lock, the most described file system management unit returns the described step judging whether described file is locked step.
Additionally, electronic equipment according to embodiments of the present invention, wherein said first data sub-interface is SATA interface, and
Described second data sub-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 transmission of the second data are assisted
View is same protocol, and described electronic equipment is carried out described via described first data-interface and described second data-interface simultaneously
The read-write in storage medium region.
A kind of file read/write method according to embodiments of the present invention and the electronic equipment of this data read-write method of use, it is achieved
File system management function is performed inside storage device, and when the file in this storage device is same by different operating system
Time when accessing, this file system management function storage device within is it can be avoided that the appearance that conflicts of file read-write.
It being understood that general description above and detailed description below are the most exemplary, and be intended to
In providing further illustrating of the technology claimed.
Accompanying drawing explanation
Fig. 1 is Hybrid computer system and the Hybrid computer of use multipor memory device of diagram prior art
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 illustrating file read/write method according to embodiments of the present invention；
Fig. 4 is the flow chart of the file read/write method according to embodiments of the present invention during diagram read operation；And
Fig. 5 is the flow chart of the file 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 multipor memory device
Hybrid computer system.
Fig. 1 is Hybrid computer system and the Hybrid computer of use multipor memory device of diagram prior art
System contrast block diagram.The left side of Fig. 1 is the Hybrid computer system 200 of prior art.In this Hybrid computer system 200
In, including the processing unit X86 201 and the processing unit ARM 202 of ARM system of X86 system.X86 201 connects via SATA
Mouthfuls 203 SSD 205 accessing the memory area as himself, 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 respective memory area, special
Be not 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 should be noted that each attached
In figure, identical parts are with represented by identical reference.Left side and the right side of comparison diagram 2 are visible, use multiport storage
The processing unit X86 201 and the processing unit ARM of ARM system of the same X86 system of Hybrid computer system 300 of device
202.Different from the Hybrid computer system 200 of prior art it is, uses the Hybrid computer of multipor memory device
The processing unit X86 201 of the X86 system in the system 300 and processing unit ARM 202 of ARM system is the most independent
Memory area.On the contrary, use the Hybrid computer system 300 of multipor memory device using flash memory 206 as the place of X86 system
Reason unit X86 201 and the memory area public for processing unit ARM202 of ARM system.Include that one is virtual at flash memory 206
Accumulation layer 207, encapsulates SATA interface 203 and SDIO 204 on this virtual memory layer 207 respectively.Therefore, the process of X86 system
The processing unit ARM 202 of unit X86201 and ARM system is respectively by SATA interface 203 He on virtual memory layer 207
SDIO 204 accesses the flash memory 206 as public memory area.So, it is achieved that between X86 system and ARM system in data
Effectively share and access.
In the above-mentioned Hybrid computer system 300 using multipor memory device described with reference to Fig. 1, if X86
The processing unit X86 201 of system and the processing unit ARM 202 of ARM system is respectively by virtual memory layer 207
When SATA interface 203 and SDIO 204 accesses as same target on the flash memory 206 of public memory area simultaneously, may go out
The problem of existing data access conflict.Accordingly, it would be desirable to improve the electronic equipment utilizing multipor memory device further, and provide
Corresponding data read-write 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, according to this
The electronic equipment 10 of bright embodiment includes the first hardware system 20 and the second hardware system 30.Described first hardware system 20 and
Two hardware systems 30 correspond respectively to the X86 system shown in Fig. 1 and ARM system.Hard at described first hardware system 20 and second
In part system 30, it is separately operable the first operating system and the second operating system.Described first operating system and the second operating system
It is Windows operating system and Android operation system respectively.Electronic equipment 10 according to embodiments of the present invention also includes storage
Device 40.Described storage device 40 have first data-interface the 41, second data-interface 42, file system management unit 43 and
Storage medium region 44.Described first data-interface 41 and the second data-interface 42 correspond respectively to the SATA interface shown in Fig. 1
203 and SDIO 204.Described storage medium region 44 is corresponding to the flash memory 206 as public memory area shown in Fig. 1.
File system management unit 43 via described first data-interface 41 or described second data-interface 42 receive from
Described first hardware system 20 of electronic equipment or the second hardware system 30 are to the read-write of file in described storage medium region 44
Order.Described file system management unit 43, based on described read write command, obtains described file in described storage medium region 44
In address.In a preferred embodiment of the invention, described file system management unit 43 by inquiry File Mapping table,
Obtain the described file corresponding with described read write command address in described storage medium region 44.Hereafter, described file system
System administrative unit 43 will be pointed to described in described address via described first data-interface 41 or described second data-interface 42
The read-write result of file is sent to described first hardware system 20 or second hardware system 30 of electronic equipment.It is to say,
In storage device 40 according to embodiments of the present invention, described file system management unit 43 achieves literary composition inside storage device 40
Part system management function.
Hereinafter, the file read/write method performed by described file system management unit 43 will be described with reference to Fig. 3.
Fig. 3 is the flow chart illustrating file read/write method according to embodiments of the present invention.As it is shown on figure 3, in step S301
In, file system management unit 43 receives set from electronics via described first data-interface 41 or described second data-interface 42
Standby described first hardware system 20 or the second hardware system 30 are to the read write command of file in described storage medium region 44.This
After, process and enter step S302.
In step s 302, described file system management unit 43, based on described read write command, obtains described file in institute
State the address in storage medium region 44.Hereafter, process enters step S303.
In step s 302, described file system management unit 43 is via described first data-interface 41 or described second number
According to interface 42, the read-write result being pointed to the described file of described address is sent to described first hardware system of electronic equipment
20 or second hardware system 30.
Above, electronic equipment according to embodiments of the present invention and the file read-write used are described with reference to Fig. 2 and Fig. 3
Method.It should be noted that electronic equipment according to embodiments of the present invention has the first hardware system 20 and the second hardware system 30,
Described storage device 40 may be by the first hardware system 20 and the second hardware system 30 respectively via described first data-interface 41
And/or described second data-interface 42 is written and read operation.Therefore, described file system management unit 43 needs performing file
The read/write conflict that two hardware systems are likely to occur when reading while write a file is avoided during read-write.
Hereinafter, read-write punching is avoided further describing with reference to Fig. 4 and Fig. 5 by what described file system management unit 43 performed
Prominent method.
Fig. 4 is the flow chart of the data read-write method according to embodiments of the present invention during diagram read operation.Such as Fig. 4 institute
Showing, in step S401, described file system management unit 43 receives the first operating system and orders the reading in storage medium region
Order.Hereafter, process enters step S402.
In step S402, described file system management unit 43 judges whether the object that reading order is to be read is added
Lock, and obtain judged result.Hereafter, process enters step S403.
In step S403, it is judged that reading object described in described judgment result displays is locked the most.If in step
S403 obtains positive result, then processes and enter step S404.On the contrary, if obtaining negative decision in step S403, then locate
Reason enters step S405.
In step s 404, determine whether that described reading object is the most by read lock.If obtained in step s 404
Obtain positive result, then process and enter step S305.On the contrary, if obtaining negative decision (now, another operation in step s 404
System may be currently written into this reading object), then process and return to step S402.
In step S405, say, that when reading object described in described judgment result displays is not locked or is added
During the first read lock (now, another operating system may read this reading object), described file system management unit 43 is
Described reading object adds the second read lock, performs the reading of described reading object, and releases the second read lock after completing to read.
By the data read-write method shown in application drawing 4, when an operating system is to the object in described storage device 40
When performing read operation, will first judge that this reading object has been locked.If this reading object is not locked (not behaviour
Make system and reading and writing this reading object) or by the read lock operating system of this reading object (exist read), then by
Will not be changed in now reading object, described operating system can perform reading after to this reading object read lock, and
And complete to release this read lock afterwards in reading.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, and
The step of locking state returning and judging this reading object, thus avoid during reading object is written over right
The mistake appearance that it is read out.
Fig. 5 is the flow chart of the data read-write method according to embodiments of the present invention during diagram write operation.Such as Fig. 5 institute
Showing, in step S501, described file system management unit 43 receives the first operating system and orders the write in storage medium region
Order.Hereafter, process enters step S502.
In step S502, described file system management unit 43 judges whether the object that writing commands is to be write is added
Lock, and obtain judged result.Hereafter, process enters step S503.
In step S503, it is judged that described judgment result displays said write object is locked the most.If in step
S503 obtains negative decision, then processes and enter step S504.On the contrary, if obtaining positive result (now, in step S503
Another operating system may read or write this write object), then process and return to step S502.
In step S502, say, that when described judgment result displays said write object is not locked, described literary composition
Part System Management Unit 43 adds for said write object writes lock, performs the write of said write object, and writes it completing
Lock is write in rear releasing.
By the data read-write method shown in application drawing 5, when an operating system is to the object in described storage device 40
When performing write operation, will first judge that this reading object has been locked.If this reading object is not locked (not behaviour
Make system and reading and writing this reading object), then will not be changed due to now reading object, described operating system can be to this
Write object add write lock after perform write, and complete to release this afterwards in write and write lock.Simultaneously as described operating system
Having added this write object when performing write and write lock, it is right that another operating system can not access this write in this ablation process
As, until this is write lock and is released from.On the contrary, (exist if this reading object is locked and read or write this reading object
Operating system), the most described operating system will not perform write operation, but return the locking state judging this write object
Step, thus avoid the mistake appearance it write when writing object by other operating system access.
Describe a kind of file read/write method according to embodiments of the present invention above by reference to Fig. 1 to Fig. 5 and use this document
The electronic equipment of reading/writing method, it is achieved perform file system management function inside storage device, and when in this storage device
File when simultaneously being accessed by different operating system, this file system management function within storage device is it can be avoided that file
The appearance of read/write conflict.
It should be noted that in this manual, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Other identical element is there is also in including the process of described key element, method, article or equipment.
Finally, in addition it is also necessary to explanation, above-mentioned a series of process not only includes with order described here in temporal sequence
The process performed, and include the process performed parallel or respectively rather than in chronological order.
Through the above description of the embodiments, those skilled in the art is it can be understood that can be by the present invention
Software adds the mode of required hardware platform and realizes, naturally it is also possible to all implemented by hardware.Based on such understanding,
What background technology was contributed by technical scheme can embody with the form of software product in whole or in part,
This computer software product can be stored in storage medium, such as ROM/RAM, magnetic disc, CD etc., including some instructions in order to make
Obtain a computer equipment (can be personal computer, server, or the network equipment etc.) and perform each embodiment of the present invention
Or the method described in some part of embodiment.
Being described in detail the present invention above, specific case used herein is to the principle of the present invention and embodiment party
Formula is set forth, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Meanwhile, right
In one of ordinary skill in the art, according to the thought of the present invention, the most all can change
Part, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a file read/write method, is applied to a kind of electronic equipment with storage device, and described storage device includes file
System Management Unit, for storing storage medium region and the data-interface of data, described file read/write method includes:
Described storage device via described data-interface receive from electronic equipment to the read-write of file in storage medium region
Order；
Described file system management unit, based on described read write command, obtains described file ground in described storage medium region
Location；And
Via described data-interface, the read-write result being pointed to the described file of described address is sent to electronic equipment.
2. file read/write method as claimed in claim 1, wherein, described electronics has the first hardware system and the second hardware system
System, described first hardware system runs has the first operating system, described second hardware system to have the second operating system, described number
At least include according to interface supporting the first data sub-interface of first data transmission agreement and supporting the of the second Data Transport Protocol
Two data sub-interfaces, described first operating system and described second operating system respectively via described first data sub-interface and/
Or described second data sub-interface carries out the read-write to described storage medium region, wherein said file read/write method also includes:
Described storage device receives from the first behaviour in electronic equipment via the first data sub-interface in described data-interface
Make system to the read write command of file in storage medium region；And
Described file system management unit, based on described read write command, obtains described file ground in described storage medium region
Location, and control the described file described address in described storage medium region is carried out the locking of read/write, described to avoid
Second operating system clashes when described file is carried out read/write operation.
3. file read/write method as claimed in claim 2, wherein said file system management unit controls to exist described file
Described address in described storage medium region carries out the locking of read/write, to avoid described second operating system to described file
Carry out clashing during read/write operation including:
When described first operating system reads the file of storage in described storage medium region by described first data sub-interface
Time, described file system management unit performs to judge the step whether described file is locked, and obtains the first judged result,
If file described in described first judgment result displays is not locked or has been added the first read lock, the most described file system pipe
Reason unit is that described file adds the second read lock, performs the reading to described file, and releases described the after completing to read
Two read locks,
If file described in described first judgment result displays has been added writes lock, the most described file system management unit returns described
Judge whether described file is locked the step of step；
When described first operating system writes the file of storage in described storage medium region by described first data-interface,
Described file system management unit performs to judge the step whether described file is locked, and obtains the second judged result,
If file described in described second judgment result displays is not locked, the most described file system management unit is described file
Add and write lock, perform the write to described file, and write lock described in releasing after completing write,
If file described in described second judgment result displays is by read lock or write lock, the most described file system management unit returns
Return the described step judging whether described file is locked step.
4. file read/write method as claimed in claim 2, wherein said first data sub-interface is SATA interface, and described
Second data sub-interface is the one in MMC/SD/SDIO interface.
5. file read/write method as claimed in claim 2, wherein first data transmission agreement and the second Data Transport Protocol are
Same protocol, described electronic equipment is carried out described storage via described first data-interface and described second data-interface simultaneously
The read-write of areas of dielectric.
6. 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；And
Storage device；
Wherein, described storage device includes
File system management unit,
For storing the storage medium region of data, and
Data-interface,
Wherein, described storage device via described data-interface receive from electronic equipment to file in storage medium region
Read write command；Described file system management unit, based on described read write command, obtains described file in described storage medium region
In address；And via described data-interface, the read-write result being pointed to the described file of described address is sent to electronics and sets
Standby.
7. electronic equipment as claimed in claim 6, wherein said data-interface at least includes supporting first data transmission agreement
The first data sub-interface and support the second data sub-interface of the second Data Transport Protocol, described first operating system and described
Second operating system carries out being situated between described storage via described first data sub-interface and/or described second data sub-interface respectively
The read-write in matter region,
Wherein, described storage device receives from the in electronic equipment via the first data sub-interface in described data-interface
One operating system to the read write command of file in storage medium region；And
Described file system management unit, based on described read write command, obtains described file ground in described storage medium region
Location, and control the described file described address in described storage medium region is carried out the locking of read/write, described to avoid
Second operating system clashes when described file is carried out read/write operation.
8. electronic equipment as claimed in claim 7, wherein said file system management unit controls described file described
Described address in storage medium region carries out the locking of read/write, to avoid described second operating system to carry out described file
Clash during read/write operation and include:
When described first operating system reads the file of storage in described storage medium region by described first data sub-interface
Time, described file system management unit performs to judge the step whether described file is locked, and obtains the first judged result,
If file described in described first judgment result displays is not locked or has been added the first read lock, the most described file system pipe
Reason unit is that described file adds the second read lock, performs the reading to described file, and releases described the after completing to read
Two read locks,
If file described in described first judgment result displays has been added writes lock, the most described file system management unit returns described
Judge whether described file is locked the step of step；
When described first operating system writes the file of storage in described storage medium region by described first data-interface,
Described file system management unit performs to judge the step whether described file is locked, and obtains the second judged result,
If file described in described second judgment result displays is not locked, the most described file system management unit is described file
Add and write lock, perform the write to described file, and write lock described in releasing after completing write,
If file described in described second judgment result displays is by read lock or write lock, the most described file system management unit returns
Return the described step judging whether described file is locked step.
9. electronic equipment as claimed in claim 7, wherein said first data sub-interface is SATA interface, and described second
Data sub-interface is the one in MMC/SD/SDIO interface.
10. electronic equipment as claimed in claim 7, wherein first data transmission agreement and the second Data Transport Protocol are identical
Agreement, described electronic equipment is carried out described storage medium via described first data-interface and described second data-interface simultaneously
The read-write in region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061607.1A CN103309871B (en) | 2012-03-09 | 2012-03-09 | File read/write method and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061607.1A CN103309871B (en) | 2012-03-09 | 2012-03-09 | File read/write method and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103309871A CN103309871A (en) | 2013-09-18 |
| CN103309871B true CN103309871B (en) | 2016-12-14 |
Family
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| CN103678525B (en) * | 2013-11-29 | 2017-09-22 | 创新科软件技术（深圳）有限公司 | A kind of method of multiple users share identical file |
| CN107562648B (en) * | 2016-07-01 | 2021-04-06 | 北京忆恒创源科技有限公司 | Lock-free FTL (fiber to the Home) access method and device |
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| CN101236531A (en) * | 2007-01-29 | 2008-08-06 | 联想(北京)有限公司 | Memory and its automatic protection realization method |
| 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 |
| CN102117182A (en) * | 2009-12-31 | 2011-07-06 | 联想(北京)有限公司 | Multi-hardware system data processing equipment and storage equipment switching method thereof |
| CN102142032A (en) * | 2011-03-28 | 2011-08-03 | 中国人民解放军国防科学技术大学 | Method and system for reading and writing data of distributed file system |
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| CN101236531A (en) * | 2007-01-29 | 2008-08-06 | 联想(北京)有限公司 | Memory and its automatic protection realization method |
| 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 |
| CN102117182A (en) * | 2009-12-31 | 2011-07-06 | 联想(北京)有限公司 | Multi-hardware system data processing equipment and storage equipment switching method thereof |
| CN102142032A (en) * | 2011-03-28 | 2011-08-03 | 中国人民解放军国防科学技术大学 | Method and system for reading and writing data of distributed file system |
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