CN110032529A - A kind of EMS memory management process and relevant apparatus - Google Patents
A kind of EMS memory management process and relevant apparatus Download PDFInfo
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- CN110032529A CN110032529A CN201810028037.3A CN201810028037A CN110032529A CN 110032529 A CN110032529 A CN 110032529A CN 201810028037 A CN201810028037 A CN 201810028037A CN 110032529 A CN110032529 A CN 110032529A
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Abstract
The embodiment of the invention discloses a kind of EMS memory management process and relevant apparatus to avoid that RAM leakage occurs, and carry out encryption/decryption to the data in memory, improve safety for being automatically performed the application and release of memory.This method comprises: obtaining the memory request instruction of user, the memory request instruction carries the preset capacity size of memory needed for user；It is instructed in response to the memory request, creates a management class, the management class is used for the application and release of managing internal memory；According to the Memory Allocation request instruction, pass through the target memory of preset capacity size described in the management class application；Receive the data manipulation instruction of the user；In response to the data manipulation instruction of the user, data management and the encryption of data and/or decryption oprerations are carried out to the target memory, and record the position of the target memory；After stopping using the target memory, the target memory is discharged by the management class.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of EMS memory management process and relevant apparatus.
Background technique
With the rapid development of computer, the requirement with people to computer performance is continuously improved, in order to adapt to calculate
The demand of the improvement of other hardware devices of machine, the memory of computer is also increasing, in addition to that can be changed in memory size
Into, can also in the case where memory size is constant, internally deposit into row efficiently utilize.
Currently, application developer is worked using memory, various parts or global change can be generally defined
Amount is handled to store ephemeral data, memory while needs to write-in data with data are read.Storing data is then needed
First to file memory headroom passes through the memory headroom of manual operation active release busy again after the completion of use.
Work as application developer, has applied for memory use, and have forgotten releasing memory after the completion of use, will lead to interior
Deposit leakage；Or be in program process, mistake occur causes follow-up process to be not carried out, and lets out to generate memory
Dew.It then will lead to program internal memory under RAM leakage serious situation to have used and generated collapse, while if for one piece of memory
If release repeatedly also results in program crashing.Simultaneously for some programs, the data in memory are sensitive informations, if used
Then there is the risk of safety in stored in clear, may be by if stored in clear for example, the encrypted message etc. of user's input
Hacker is easy to search the data of memory using memory research tool, thus internal storage data of easily modifying.
Summary of the invention
The present invention provides a kind of EMS memory management process and relevant apparatus, for being automatically performed the application and release of memory,
It avoids that RAM leakage occurs, and encryption/decryption is carried out to the data in memory, improve safety.
First aspect present invention provides a kind of EMS memory management process, comprising:
The memory request instruction of user is obtained, the preset capacity that the memory request instruction carries memory needed for user is big
It is small；
Instructed in response to the memory request, create a management class, the management class for managing internal memory application with
Release；
According to the Memory Allocation request instruction, in the target by preset capacity size described in the management class application
It deposits；
Receive the data manipulation instruction of the user；
In response to the data manipulation instruction of the user, data management and the encryption of data are carried out to the target memory
And/or decryption oprerations, and record the position of the target memory；
After stopping using the target memory, the target memory is discharged by the management class.
Optionally, described that data management and the encryption of data and/or decryption oprerations are carried out to the target memory, and remember
The position for recording the target memory includes:
The target memory is read out by the management class and decryption oprerations, and/or write-in and cryptographic operation, and
Record the position of the target memory.
Optionally, described the target memory to be read out by the management class and decryption oprerations, and/or write-in and
Cryptographic operation, and the position for recording the target memory includes:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption
Function encrypts the first object data, and records the position for being written with the target memory of the first object data
It sets；And/or call reading stencil function to read the second target data in the target memory by the management class, it calls
Second target data is decrypted in decryption function, and records the target memory for reading second target data
Position.
Optionally, the target memory by preset capacity size described in the management class application includes:
By the target memory of preset capacity size described in the management class application, and call constructed fuction to the target
Memory is managed.
Optionally, it is described by the management class to the target memory carry out release include:
Destructor function is called to discharge the target memory by the management class.
Second aspect of the present invention provides a kind of memory management device, comprising:
Acquiring unit, the memory request for obtaining user instruct, and the memory request instruction carries in needed for user
The preset capacity size deposited；
Creating unit creates a management class, the management class is for managing for instructing in response to the memory request
The application and release of memory；
Application unit, for passing through preset capacity described in the management class application according to the Memory Allocation request instruction
The target memory of size；
Receiving unit, for receiving the data manipulation instruction of the user；
Processing unit carries out data management to the target memory for the data manipulation instruction in response to the user
And the encryption and/or decryption oprerations of data, and record the position of the target memory；
Releasing unit, after stopping using the target memory, for by the management class to the target memory into
Row release.
Optionally, the processing unit includes:
Processing module, for being read out by the management class to the target memory and decryption oprerations, and/or write-in
And cryptographic operation, and record the position of the target memory.
Optionally, the processing module is specifically used for:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption
Function encrypts the first object data, and records the position for being written with the target memory of the first object data
It sets；And/or call reading stencil function to read the second target data in the target memory by the management class, it calls
Second target data is decrypted in decryption function, and records the target memory for reading second target data
Position.
Third aspect present invention provides a kind of electronic equipment, including memory, processor, which is characterized in that the place
Reason device realizes the memory management as described in above-mentioned any one when being used to execute the computer management class method stored in memory
The step of method.
Fourth aspect present invention provides a kind of computer readable storage medium, is stored thereon with computer management class
Sequence, it is characterised in that: the memory as described in above-mentioned any one is realized when the computer management class method is executed by processor
The step of management method.
Detailed description of the invention
Fig. 1 is one embodiment schematic diagram of EMS memory management process in the embodiment of the present invention；
Fig. 2 is one embodiment schematic diagram of memory management device in the embodiment of the present invention；
Fig. 3 is another embodiment schematic diagram of memory management device in the embodiment of the present invention；
Fig. 4 is a kind of hardware structural diagram of memory management device in the embodiment of the present invention；
Fig. 5 is another hardware structural diagram of memory management device in the embodiment of the present invention.
Specific embodiment
The present invention provides a kind of EMS memory management process and relevant apparatus, for being automatically performed the application and release of memory,
It avoids that RAM leakage occurs, and encryption/decryption is carried out to the data in memory, improve safety.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig. 1, Fig. 1 is one embodiment schematic diagram of EMS memory management process provided in an embodiment of the present invention, comprising:
101, the memory request instruction of user is obtained, the preset capacity that memory request instruction carries memory needed for user is big
It is small.
The memory request instruction of user is obtained, memory request instructs the preset capacity size for carrying memory needed for user.
It is understood that user can according to actual needs, memory management device application memory, the size of the memory by
User determines, and the preset capacity size carried in memory request instruction can be provided most no more than memory management device
Large capacity.
It should be noted that memory management device also needs to define one before obtaining the memory request instruction of user
Class and correlation function are managed, which can be used to complete the application and release operation of memory, and can complete to memory
Data are written and read the operation of data, and automatically record the read and write position of memory.The embodiment of the present invention and subsequent embodiment
In management class in correlation function may include interface function, for ease of description, the embodiment of the present invention and subsequent embodiment
It is middle that interface function is referred to as interface.
It is implemented as follows:
The present invention defines the management class AutoMgrBuffer cached first:
class AutoMgrBuffer{
It is such, it is for managing internal memory application and release and to provide relevant interface.
Constructing definitions function is with the object properties for initializing class AutoMgrBuffer.
AutoMgrBuffer (size_t_size=256, char*pKey, int encodeType)；
The present invention provides the memory sizes that an interface is used to be passed to an application, for having write when the memory of application
Full data, when needing to apply again memory, the memory size of application causes memory to waste if too big, can if too small
Frequent application memory, so user can insert the size of the data according to usage scenario.Wherein, char*pKey is then
The KEY value used when for data encryption can then encrypt each memory using different KEY, further in this way
Reinforce its safety.Which kind of provide a parameter int encodeType simultaneously to be used to be set using Encryption Algorithm, the present invention
Also multiple encryption algorithms can be provided to carry out encryption and decryption to data, user can be according to the privacy degrees of the scene and data that use
Come using different Encryption Algorithm.
Constructing definitions function is passed to the allocated memory buff.
Constructed fuction can be called when one object birth, destructor function can be then called when dead.
The interface of its destructor function is defined, wherein destructor function is mainly used for completing cleaning work, such as releasing memory is arranged, when
For the AutoMgrBuffer object of creation in its scope after the completion of use, system can call its destructor function automatically, thus this
The calling memory discharge operation of display is removed in release literary then that memory can be carried out in destructor function without user, from
And user is avoided to forget releasing memory and lead to memory overflow.
~AutoMgrBuffer ()；
The interface of the write-in caching of definition template:
template<class T>void Write(const T&_val)；
Template<class T>is the statement for the template type that C Plus Plus provides, and representing this function is a template letter
Number, template type is then T type.
This interface provides the interface of a write-in template object, to both can be written into type using this interface and be
Int, char, uint, uchar, int32, int64, object type etc., then not needing to distinguish write-in data for user
Type and call different interfaces, then directly can all call write-in (Write) template type interface herein.
The interface of the reading cache data of definition template:
template<class T>size_t Read(T&_val)；
This interface provides the interface of a reading template object, to can both read type using this interface and be
Int, char, uint, uchar, int32, int64, object type etc. read data then not needing to distinguish for user
Type and call different interfaces, then directly can all call reading (Read) template type interface herein.
Defining interface is to obtain the size and capacity of current cache:
size_t Capacity()const；
This interface is used to return the memory size of application, so that user knows the application size of memory.
Defining interface is to obtain the remaining size of current cache:
size_t Length()const；
After this interface is used to return the memory write-in data of application, also lefting in great memory headroom can be written into data.
Defining interface is for resetting AutoMgrBuffer object.
When AutoMgrBuffer after use, need to carry out memory release, and situation its attribute, the present invention then provides one
A interface is for resetting AutoMgrBuffer object.
void Reset()；
This interface can then discharge the memory of application, and attribute is carried out situation.
}
Other constructed fuctions are defined as privately owned by defining interface, prevent object copies
private:
AutoMgrBuffer(const AutoMgrBuffer&_rhs)；
AutoMgrBuffer&operator=(const AutoMgrBuffer&_rhs)；
In the grammer of C Plus Plus, above-mentioned function is defined as privately owned, then can prevent user from copying to object
Operation prevents from managing with a memory using 2 different AutoMgrBuffer objects.
Define data encryption interface:
Void Encode(char*buff,int nLen,char*key,int encodeType)；
Wherein parameter char*buff is then the buff for needing the data encrypted.
Wherein parameter int nLen is then the data length for needing to encrypt.
Wherein parameter char*key is then to need to encrypt the key used.
Wherein parameter int encodeType is then the Encryption Algorithm used when needing to encrypt.
Define data deciphering interface:
Void Decode(char*buff,int nLen,char*key,int decodeType)；
Wherein parameter char*buff is then the buff for needing data to be decrypted.
Wherein parameter int nLen is then the data length for needing to decrypt.
Wherein parameter char*key is then to need to decrypt the key used.
Wherein parameter int decodeType is then the decipherment algorithm used when needing to decrypt.
Encryption Algorithm must be matched with decipherment algorithm simultaneously, and the member variable of this paper can store currently used encryption
The type of algorithm, so that algorithm will not be caused unpaired.
Define the member property data of AutoMgrBuffer class.
Need to record the memory address of current application for AutoMgrBuffer class, the amount of capacity of memory, currently
The core position of data write-in, the still remaining memory headroom of the caching of current application.
unsigned char*m_pbuff；For recording the initial address of the application memory of memory.
size_t m_capacity；For recording the size for applying for memory every time.
size_t m_pos；For recording the position of current memory data write-in.
size_t m_length；Memory also how many capacity for recording application can write data.
size_t m_unitsize；For recording the size of application memory headroom every time.
102, it is instructed in response to memory request, creates a management class, management class is used for the application and release of managing internal memory.
It is instructed in response to memory request, creates a management class, management class is used for the application and release of managing internal memory.
It should be noted that including multiple functions in management class, specifically, can be for initialization definitions
The constructed fuction of AutoMgrBuffer object, the embodiment of the invention provides two constructed fuctions and a destructor function, specifically
It is accomplished by
For interface AutoMgrBuffer (size_t_size=256, char*pKey, int encodeType)；Reality
It is now as follows:
This interface then initializes member variable, and by parameter assignment to member variable.
It is used to store the KEY value used when encryption with addition of a m_pkey.
With addition of the types that a m_encodeType is used to store encryption.
For interface AutoMgrBuffer (void*buf, size_t_len, size_t_size=256, char*pKey,
int encodeType)；It is accomplished by
This interface is also to carry out assignment operation to member variable.
Interface~AutoMgrBuffer () is implemented as follows:
103, according to Memory Allocation request instruction, by the target memory for managing class application preset capacity size.
According to Memory Allocation request instruction, by the target memory for managing class application preset capacity size.
It should be noted that management class calls constructed fuction defined above big to memory managing device application preset capacity
Small memory.
In the case of different, different constructed fuctions can be called, for example, when the memory of application has write full data,
When needing to apply again memory, function AutoMgrBuffer (size_t_size=256, char*pKey, int are called
encodeType)；
Wherein, numerical value 256 can also be other numerical value, specifically herein without limitation.It can also be the interior of other applications
Deposit size, it is to be understood that user can according to actual needs, memory management device application memory, the size of the memory by
User determines, and the preset capacity size carried in memory request instruction can be provided most no more than memory management device
Large capacity.It causes memory to waste if too big, can frequently apply for memory if too small, so user can be according to use
Scene inserts the sizes of the data.
104, the data manipulation instruction of user is received.
Receive the data manipulation instruction of user.Specifically, the instruction that user is sent, for example, data are written into memory
Data are either read from memory, details are not described herein again for the storage form of data in memory.
It should be noted that memory management equipment can also definition template before receiving the data manipulation instruction of user
Function, stencil function include the interface that data are written, interface, the interface of encryption data and the connecing for ciphertext data for reading data
Mouthful.
Concrete implementation is as follows:
The interface (encryption function) of encryption data, this interface can externally provide a variety of cipher modes, either quickly adding
It is close, it is also possible to safer encryption.User can be selected according to the degree of protection to data using which kind of cipher mode.
Void Encode(char*buff,int nLen,char*key,int encodeType)；
Interface of the invention is above-mentioned interface, selects encryption type by parameter encodeType.
3 kinds of encipherment schemes are provided in the embodiment of the present invention, it is to be understood that there can also be other encipherment schemes,
Specifically herein without limitation.The function of encryption data is as follows:
If (encodeType==0)
{
When encryption type is 0, selection of the embodiment of the present invention encrypts data using xor operator, to rise
Executing speed can ignore substantially.It is implemented as follows:
For (int I=0；I<nLen；i++)
{
Write a Do statement first the data of input are carried out with the encryption of each byte.
Buff [i]=buff [i] ^key [i]；
Encryption is then to carry out XOR operation to the data of the key of data and input in buff to obtain encrypted result.
}
}
Else if (encodeType==1)
{
TEA.Encrypt(buff,nLen,key)；
When encryption type is 1, the embodiment of the present invention then selects to encrypt data using TEA Encryption Algorithm, and
And then calculating speed is fast for TEA Encryption Algorithm, encryption intensity is higher than xor operator.
}
Else if (encodeType==2)
{
DES.Encrypt(buff,nLen,key)；
When encryption type is 2, the embodiment of the present invention then selects to encrypt data using des encryption algorithm, and
And des encryption algorithm calculating speed is slow, encryption intensity ratio TEA operator is higher, and safety is more preferable.
The interface of encryption data is defined above, this interface can externally provide a variety of cipher modes, either quickly adding
It is close, it is also possible to safer encryption.Which kind of encryption side user can select according to the degree of protection to data using
Formula.
Void Decode(char*buff,int nLen,char*key,int decodeType)；
The decryption interface (decryption function) of the embodiment of the present invention is above-mentioned interface, selects to solve by parameter decodeType
Close type.
3 kinds of decryption schemes are provided in this embodiment of the present invention, the decryption scheme of certain embodiment of the present invention is and the side of encryption
Case is one-to-one.
If (decodeType==0)
{
When decrypting type is 0, selection of the embodiment of the present invention is decrypted data using xor operator, to rise
Executing speed can ignore substantially, because XOR operation, which executes 2 times, then obtains original data, be then equivalent to and carried out decryption number
According to.It is implemented as follows:
For (int I=0；I<nLen；i++)
{
Write a Do statement first the data of input are carried out with the decryption of each byte.
Buff [i]=buff [i] ^key [i]；
Decryption is then to carry out XOR operation to the data of the key of data and input in buff to obtain decrypted result.
}
}
Else if (decodeType==1)
{
TEA.Encrypt(buff,nLen,key)；
When decrypting type is 1, the embodiment of the present invention then selects that data are decrypted using TEA decipherment algorithm, and
And then calculating speed is fast for TEA decipherment algorithm, decryption and encryption correspond.
}
Else if (decodeType==2)
{
DES.Decrypt(buff,nLen,key)；
When decrypting type is 2, the embodiment of the present invention then selects that data are decrypted using DES decipherment algorithm, and
And then calculating speed is slow for DES decipherment algorithm, encryption intensity ratio TEA operator is higher, and safety is more preferable.
The interface of the write-in data of definition template function, this interface, which is then supplied to user, can be written into any type of number
According to.
template<class T>void Write(const T&_val)
{
Write(&_val,sizeof(_val))；
{
The length of write-in data can be judged first, if it exceeds the length that can be written into, then need to redistribute
Memory, otherwise can be directly by data copy into caching.
For example, if it exceeds length, then redistribute memory, and it is single that the dynamics of distributing, which is with m_unitsize,
Member is allocated, and is then specifically to call such as minor function to distribute:
Size_t mallocsize=((_ len+m_unitsize-1)
/m_unitsize)*m_unitsize；
The length for needing to distribute is calculated first, and the dynamics of distribution is that m_unitsize is unit.
After obtaining length, calling system function carrys out storage allocation.
Void*p=realloc (m_pbuff, mallocsize)；
System function realloc is then to redistribute memory, and allocated size is then mallocsize.
M_pbuff=(unsigned char*) p；
And the new memory of distribution is assigned to member variable m_pbuff to save.
It is next then behind the data copy to the new memory of distribution that will need to be written after being assigned memory.
When data being written herein, then first the data of write-in can be encrypted, be then specifically that calling is defined above
Interface is encrypted to realize.
Char*pData=(char*) &_val；
Encryption interface Encode is called to realize that the data to write-in encrypt.
Encode(pData,sizeof(_val),m_pkey,m_encodetype)；
memcpy(m_pbuff+m_pos,&_val,sizeof(_val))；
So as to complete the write-in functions to data.
}
}
The embodiment of the present invention provides the interface of the reading data of a template, to easily read any type of number
According to.It is implemented as follows:
template<class T>size_t Read(T&_val)
{
Read(&_val,sizeof(_val))；
{
It reads legitimacy to parameter first to judge, the pointer of reading is then directly returned if it is empty, is read unsuccessful；
The pointer of reading if not empty, then copies data in memory from currently.
memcpy(pbuffer,m_pbuff+m_pos-readlen,readlen)；
In pbuffer pointer to read data copy to needs.
It needs that the data of reading are decrypted herein and can just obtain original data, specific decryption is then that calling is above-mentioned fixed
The decryption interface of justice.
Decode (pbuffer, readlen, m_pkey, m_encodetype)；
The type wherein encrypted then corresponds to the type of same decipherment algorithm.To finally obtain in pbuffer
Data are decrypted.
}
}
105, in response to the data manipulation instruction of user, to target memory carry out data management and the encryption of data and/
Or decryption oprerations, and record the position of target memory.
In response to the data manipulation instruction of user, data management and the encryption of data and/or solution are carried out to target memory
Close operation, and record the position of target memory.
Specifically, calling write-in stencil function that first object data are written to target memory by management class, encryption is called
Function encrypts the first object data, and records the position for being written with the target memory of first object data；With/
Or, calling the second target data read in stencil function reading target memory by management class, call decryption function to described
Second target data is decrypted, and records the position for reading the target memory of the second target data.
Specifically, write-in stencil function is write-in data-interface defined above, interface is as follows:
Specifically, reading stencil function is reading data-interface defined above, interface is as follows:
It should be noted that the interface function of more other functions can also be defined, for example, available presently written
The function of pointer position；The function of available currently allocated memory size, and the memory currently distributed is carried out
Function of resetting etc..
106, after stopping using target memory, target memory is discharged by managing class.
After stopping using target memory, destructor function is called to discharge target memory by management class.
For example, when the definition and interface that complete memory management device and after realize, then the use that can be convenient.
Its concrete practice is illustrated in the embodiment of the present invention, is implemented as follows:
For carrying out read/write memory without using memory management device, concrete operations are as follows:
One section of memory is distributed first, and data are then written, then read data.
Char*pBuff=new char [100]；
Int nPos=0；
It is as follows that data are written:
Int nData=53；
It first has to judge whether current remaining memory can be written into this data.
If(sizeof(nData)>100–nPos)
Return；Then data cannot be written in explanation again.
Memcpy(pBuff+nPos,&nData,sizeof(nData))；
It needs to go to update nPos simultaneously, to facilitate the write-in of next data.
NPos=nPos+sizeof (nData).
If a large amount of data are written, above-mentioned code can then become very huge, and have to variable nPos into
Row assignment, otherwise data can by last data cover, and be written every time also to judge current write-in data whether be more than
The memory of distribution.
Simultaneously after the completion of use, has to carry out memory release to the pBuff of distribution, otherwise will cause memory and let out
Leakage.
When for using memory management device:
AutoMgrBuffer buff；
First according to the management class AutoMgrBuffer of definition.
Then data are written:
Int nData=53；
Buff.Write(nData)；So management class, which only needs line code then, can complete the write-in of data, and interior
Whether portion judges current memory can be written into the data, and if not enough writing can automatic storage allocation be written.
Int nRead=0；
Buff.Read(nRead)；
It reads data and also only needs line code, then can read data.
After the completion of the management class use, after having exceeded its sphere of action, the memory of application can discharge automatically, not need user
The calling shown goes to discharge, to avoid because user forgets to discharge and cause memory overflow.To be provided just for user
Benefit.
The embodiment of the present invention is described from the angle of EMS memory management process above, below from memory management device
The embodiment of the present invention is described in angle.
Referring to Fig. 2, Fig. 2 is one embodiment schematic diagram of memory management device provided in an embodiment of the present invention, this is interior
Managing device is deposited, is specifically included:
Acquiring unit 201, the memory request for obtaining user instruct, and the memory request instruction carries needed for user
The preset capacity size of memory；
Creating unit 202 creates a management class, the management class is used for for instructing in response to the memory request
The application and release of managing internal memory；
Application unit 203, for passing through preset appearance described in the management class application according to the Memory Allocation request instruction
Measure the target memory of size；
Receiving unit 204, for receiving the data manipulation instruction of the user；
Processing unit 205 carries out data pipe to the target memory for the data manipulation instruction in response to the user
The encryption and/or decryption oprerations of reason and data, and record the position of the target memory；
Releasing unit 206 is used for through the management class after stopping using the target memory to the target memory
It is discharged.
Such as Fig. 3, another embodiment schematic diagram of memory management device provided in an embodiment of the present invention, comprising:
Acquiring unit 301, the memory request for obtaining user instruct, and the memory request instruction carries needed for user
The preset capacity size of memory；
Creating unit 302 creates a management class, the management class is used for for instructing in response to the memory request
The application and release of managing internal memory；
Application unit 303, for passing through preset appearance described in the management class application according to the Memory Allocation request instruction
Measure the target memory of size；
Receiving unit 304, for receiving the data manipulation instruction of the user；
Processing unit 305 carries out data pipe to the target memory for the data manipulation instruction in response to the user
The encryption and/or decryption oprerations of reason and data, and record the position of the target memory；
Releasing unit 306 is used for through the management class after stopping using the target memory to the target memory
It is discharged.
Optionally, the processing unit 305 includes:
Processing module 3051, for being read out by the management class to the target memory and decryption oprerations, and/or
Write-in and cryptographic operation, and record the position of the target memory.
Optionally, processing module 3051 is specifically used for:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption
Function encrypts the first object data, and records the position for being written with the target memory of the first object data
It sets；And/or call reading stencil function to read the second target data in the target memory by the management class, it calls
Second target data is decrypted in decryption function, and records the target memory for reading second target data
Position.
The embodiment of the present invention, obtains the memory request instruction of user, and the memory request instruction carries in needed for user
The preset capacity size deposited；It is instructed in response to the memory request, creates a management class, the management class is used for managing internal memory
Application and release；According to the Memory Allocation request instruction, pass through the mesh of preset capacity size described in the management class application
Mark memory；Receive the data manipulation instruction of the user；In response to the data manipulation instruction of the user, to the target memory
Data management and the encryption of data and/or decryption oprerations are carried out, and record the position of the target memory；When stopping using
After stating target memory, the target memory is discharged by the management class.Management class can be automatically performed the Shen of memory
It please and discharge, avoid that RAM leakage occurs, and carry out encryption/decryption to the data in memory, improve safety.
Referring to Fig. 4, Fig. 4 is the embodiment schematic diagram of electronic equipment provided in an embodiment of the present invention.
As shown in figure 4, the embodiment of the invention provides a kind of electronic equipment, including memory 410, processor 420 and deposit
The computer program 411 that can be run on memory 420 and on processor 420 is stored up, processor 420 executes computer program
It is performed the steps of when 411
The memory request instruction of user is obtained, the preset capacity that the memory request instruction carries memory needed for user is big
It is small；
Instructed in response to the memory request, create a management class, the management class for managing internal memory application with
Release；
According to the Memory Allocation request instruction, in the target by preset capacity size described in the management class application
It deposits；
Receive the data manipulation instruction of the user；
In response to the data manipulation instruction of the user, data management and the encryption of data are carried out to the target memory
And/or decryption oprerations, and record the position of the target memory；
After stopping using the target memory, the target memory is discharged by the management class.
Optionally, described that data management and the encryption of data and/or decryption oprerations are carried out to the target memory, and remember
The position for recording the target memory includes:
The target memory is read out by the management class and decryption oprerations, and/or write-in and cryptographic operation, and
Record the position of the target memory.
Optionally, described the target memory to be read out by the management class and decryption oprerations, and/or write-in and
Cryptographic operation, and the position for recording the target memory includes:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption
Function encrypts the first object data, and records the position for being written with the target memory of the first object data
It sets；And/or call reading stencil function to read the second target data in the target memory by the management class, it calls
Second target data is decrypted in decryption function, and records the target memory for reading second target data
Position.
Optionally, the target memory by preset capacity size described in the management class application includes:
By the target memory of preset capacity size described in the management class application, and call constructed fuction to the target
Memory is managed.
Optionally, it is described by the management class to the target memory carry out release include:
Destructor function is called to discharge the target memory by the management class.
In the specific implementation process, when processor 420 executes computer program 411, the corresponding embodiment of Fig. 1 may be implemented
Middle any embodiment.
Since the electronic equipment that the present embodiment is introduced is adopted by memory management device a kind of in the implementation embodiment of the present invention
Equipment, so based on method described in the embodiment of the present invention, those skilled in the art can understand this implementation
The specific embodiment and its various change form of the electronic equipment of example, so how to realize this for the electronic equipment herein
Method in inventive embodiments is no longer discussed in detail, as long as those skilled in the art implement the method in the embodiment of the present invention
Used equipment belongs to the range of the invention to be protected.
Referring to Fig. 5, Fig. 5 is a kind of embodiment signal of computer readable storage medium provided in an embodiment of the present invention
Figure.
As shown in figure 5, present embodiments providing a kind of computer readable storage medium 500, it is stored thereon with computer journey
Sequence 511, the computer program 511 realize following steps when being executed by processor:
The memory request instruction of user is obtained, the preset capacity that the memory request instruction carries memory needed for user is big
It is small；
Instructed in response to the memory request, create a management class, the management class for managing internal memory application with
Release；
According to the Memory Allocation request instruction, in the target by preset capacity size described in the management class application
It deposits；
Receive the data manipulation instruction of the user；
In response to the data manipulation instruction of the user, data management and the encryption of data are carried out to the target memory
And/or decryption oprerations, and record the position of the target memory；
After stopping using the target memory, the target memory is discharged by the management class.
Optionally, described that data management and the encryption of data and/or decryption oprerations are carried out to the target memory, and remember
The position for recording the target memory includes:
The target memory is read out by the management class and decryption oprerations, and/or write-in and cryptographic operation, and
Record the position of the target memory.
Optionally, described the target memory to be read out by the management class and decryption oprerations, and/or write-in and
Cryptographic operation, and the position for recording the target memory includes:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption
Function encrypts the first object data, and records the position for being written with the target memory of the first object data
It sets；And/or call reading stencil function to read the second target data in the target memory by the management class, it calls
Second target data is decrypted in decryption function, and records the target memory for reading second target data
Position.
Optionally, the target memory by preset capacity size described in the management class application includes:
By the target memory of preset capacity size described in the management class application, and call constructed fuction to the target
Memory is managed.
Optionally, it is described by the management class to the target memory carry out release include:
Destructor function is called to discharge the target memory by the management class.
It should be noted that in the above-described embodiments, all emphasizing particularly on different fields to the description of each embodiment, in some embodiment
The part being not described in may refer to the associated description of other embodiments.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to
Enable the processor of general purpose computer, special purpose computer, embedded computer or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Concept, then additional changes and modifications may be made to these embodiments.So it includes preferred that the following claims are intended to be interpreted as
Embodiment and all change and modification for falling into the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the invention is also intended to include including these modification and variations.
Claims (10)
1. a kind of EMS memory management process characterized by comprising
The memory request instruction of user is obtained, the memory request instruction carries the preset capacity size of memory needed for user；
It is instructed in response to the memory request, creates a management class, the management class is used for the application and release of managing internal memory；
According to the Memory Allocation request instruction, pass through the target memory of preset capacity size described in the management class application；
Receive the data manipulation instruction of the user；
In response to the data manipulation instruction of the user, to the target memory carry out data management and the encryption of data and/
Or decryption oprerations, and record the position of the target memory；
After stopping using the target memory, the target memory is discharged by the management class.
2. EMS memory management process according to claim 1, which is characterized in that described to carry out data pipe to the target memory
The encryption and/or decryption oprerations of reason and data, and the position for recording the target memory includes:
The target memory is read out by the management class and decryption oprerations, and/or write-in and cryptographic operation, and recorded
The position of the target memory.
3. EMS memory management process according to claim 2, which is characterized in that it is described by the management class to the target
Memory is read out and decryption oprerations, and/or write-in and cryptographic operation, and the position for recording the target memory includes:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption function
The first object data are encrypted, and record the position for being written with the target memory of the first object data；
And/or call reading stencil function to read the second target data in the target memory by the management class, it calls
Second target data is decrypted in decryption function, and records the target memory for reading second target data
Position.
4. EMS memory management process according to claim 1, which is characterized in that described by pre- described in the management class application
The target memory for setting amount of capacity includes:
By the target memory of preset capacity size described in the management class application, and call constructed fuction to the target memory
It is managed.
5. EMS memory management process according to claim 1, which is characterized in that it is described by the management class to the target
Memory carries out release
Destructor function is called to discharge the target memory by the management class.
6. a kind of memory management device characterized by comprising
Acquiring unit, the memory request for obtaining user instruct, and the memory request instruction carries memory needed for user
Preset capacity size；
Creating unit creates a management class, the management class is used for managing internal memory for instructing in response to the memory request
Application and release；
Application unit, for passing through preset capacity size described in the management class application according to the Memory Allocation request instruction
Target memory；
Receiving unit, for receiving the data manipulation instruction of the user；
Processing unit, for the data manipulation instruction in response to the user, to the target memory carry out data management and
The encryption and/or decryption oprerations of data, and record the position of the target memory；
Releasing unit, after stopping using the target memory, for being released by the management class the target memory
It puts.
7. memory management device according to claim 6, which is characterized in that the processing unit includes:
Processing module for being read out by the management class to the target memory and decryption oprerations, and/or write-in and adds
Close operation, and record the position of the target memory.
8. memory management device according to claim 7, which is characterized in that the processing module is specifically used for:
It calls write-in stencil function that first object data are written to the target memory by the management class, calls encryption function
The first object data are encrypted, and record the position for being written with the target memory of the first object data；
And/or call reading stencil function to read the second target data in the target memory by the management class, call decryption
Second target data is decrypted in function, and records the position for reading the target memory of second target data
It sets.
9. a kind of electronic equipment, including memory, processor, which is characterized in that the processor is deposited for executing in memory
The step of EMS memory management process as described in any one of claim 1 to 5 is realized when the computer management class method of storage.
10. a kind of computer readable storage medium is stored thereon with computer management class method, it is characterised in that: the calculating
Machine management class method realizes the step of the EMS memory management process as described in any one of claim 1 to 5 when being executed by processor
Suddenly.
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