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.
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