CrashFlash Class Reference
Abstract class defining interface to all
CrashFlash
classes. This is used by the CrashLogger to log to a specific type of flash.
Member Functions Documentation
BytesWritten()
|
TUint
|
BytesWritten
|
(
|
)
|
[pure virtual]
|
Returns the number of bytes written to the flash. This is used by reading programs to figure out how much to read back.
EndTransaction()
|
void
|
EndTransaction
|
(
|
)
|
[pure virtual]
|
Called last. Commits any buffered data and sets the flag for the underlying crash flash device indicating that the transaction finished succesfully.
EraseFlashBlock(const TUint)
|
void
|
EraseFlashBlock
|
(
|
const
TUint
|
aBlock
|
)
|
[pure virtual]
|
Erases the data in a given flash block
Parameters
|
const
TUint
aBlock
|
The block to be erased
|
EraseLogArea()
|
void
|
EraseLogArea
|
(
|
)
|
[pure virtual]
|
Called third. Performs the operations necessary to erase a block of flash large enough to store a log of KMaxCrashLogSize.
Initialise()
|
TInt
|
Initialise
|
(
|
)
|
[pure virtual]
|
Called first. Should initialise underlying crash flash device to the state that it can read, write, and erase.
Read(TDes8 &)
|
void
|
Read
|
(
|
TDes8
&
|
aDes
|
)
|
[pure virtual]
|
Reads the next aDes.Length() characters and places them in aDes starting from aDes[0]. The read position is modifiable using
SetReadPos()
. The underlying implementation may buffer as required.
SetReadPos(TUint)
|
void
|
SetReadPos
|
(
|
TUint
|
aPos
|
)
|
[pure virtual]
|
Sets the internal state such that the next read will take place at aPos bytes from the base address.
SetWritePos(const TUint)
|
void
|
SetWritePos
|
(
|
const
TUint
|
aPos
|
)
|
[pure virtual]
|
Sets the internal state of the write position aPos bytes from the base address.
StartTransaction()
|
void
|
StartTransaction
|
(
|
)
|
[pure virtual]
|
Called second. Allows underlying implementation to set any flags required to indicate that a transaction has started.
Write(const TDesC8 &)
|
void
|
Write
|
(
|
const
TDesC8
&
|
aDes
|
)
|
[pure virtual]
|
Writes aDes to the underlying crash flash device. The underlying implementation may buffer as required.
WriteSignature(const TDesC8 &)
|
void
|
WriteSignature
|
(
|
const
TDesC8
&
|
aDes
|
)
|
[pure virtual]
|
Writes aDes to the signature section of the underlying cras flash device. The descriptor should include both the signature and the length written.
Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights
reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.