CProcessServer Class Reference

Inherits CServer2.

List of all members.

Public Types
enum	TDriverState {   EStateUnknown, EDriverLoaded, ELogicalChannelOpened, ESendingData,   ELogicalChannelClosed, EDriverUnloaded }
Public Member Functions
	~CProcessServer ()
CSession2 *	NewSessionL (const TVersion &aVersion, const RMessage2 &aMessage) const
void	IncrementRefCount ()
void	DecrementRefCount ()
TInt	LoadDevice ()
TInt	UnloadDevice ()
TInt	OpenLogicalChannel ()
void	CloseLogicalChannel ()
TInt	SendDataToDevice (TRequestStatus &aStatus, const TDesC8 &aData)
void	CancelSendData ()
void	UpdateDriverState (TDriverState aState)
Static Public Member Functions
static void	NewLC ()

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Detailed Description

Interface for process server.

Definition at line 29 of file processserver.h.

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Member Enumeration Documentation

enum CProcessServer::TDriverState

Enumeration of states of driver.

Definition at line 35 of file processserver.h.

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Constructor & Destructor Documentation

CProcessServer::~CProcessServer

(

)

Destructor, The device driver will be unloaded when the server destructor is called.

Destructor

Definition at line 50 of file processserver.cpp.

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Member Function Documentation

void CProcessServer::NewLC

(

)

[static]

Two phase constructor.

Definition at line 24 of file processserver.cpp.

CSession2 * CProcessServer::NewSessionL	(	const TVersion &	aVersion,
		const RMessage2 &	aMessage
	)			const

Creates a server-side session object.

See also:

CServer2::NewSessionL().

Creates a new server-side session

Parameters:

	aVersion	Version argument
	aMessage	The message to process

Returns:

Server side client session object

Definition at line 67 of file processserver.cpp.

void CProcessServer::IncrementRefCount

(

)

Increases reference count and cancels shutdown timer. This function is called when a new session is created.

Increment the count for the number of clients connected

Definition at line 86 of file processserver.cpp.

void CProcessServer::DecrementRefCount

(

)

Decreases reference count and starts shutdown timer. This function is called when a session is destroyed.

Decrement the count for the number of clients connected

Definition at line 95 of file processserver.cpp.

TInt CProcessServer::LoadDevice

(

)

Loads the device, including sample PDD and LDD.

Load both LDD and PDD

Returns:

KErrNone or standard error code.

Definition at line 107 of file processserver.cpp.

TInt CProcessServer::UnloadDevice

(

)

Unloads the device, including sample LDD and PDD.

Unload both LDD and PDD

Returns:

KErrNone or standard error code.

Definition at line 132 of file processserver.cpp.

TInt CProcessServer::OpenLogicalChannel

(

)

Opens device's logical channel.

Open LDD

Returns:

KErrNone or standard error code.

Definition at line 158 of file processserver.cpp.

void CProcessServer::CloseLogicalChannel

(

)

Closes device's logical channel.

Close LDD

Definition at line 172 of file processserver.cpp.

TInt CProcessServer::SendDataToDevice	(	TRequestStatus &	aStatus,
		const TDesC8 &	aData
	)

Sends data to device asynchronously.

Send data to LDD device

Parameters:

	aStatus	A TRequestStatus reference
	aData	Data to be sent

Returns:

KErrNone or standard error code.

Definition at line 186 of file processserver.cpp.

void CProcessServer::CancelSendData

(

)

Cancels send data operation.

Cancel sending data

Definition at line 203 of file processserver.cpp.

void CProcessServer::UpdateDriverState

(

TDriverState

aState

)

Updates device state.

Update the states of the driver

Parameters:

aState

State of the driver to be updated

Definition at line 212 of file processserver.cpp.