ImageBase Class Reference

List of all members.

Public Member Functions
	ImageBase (ConfigFile *cf, int section, bool overwrite_cmds, size_t queue_maxlen, int interf)
	ImageBase (ConfigFile *cf, int section, bool overwrite_cmds=true, size_t queue_maxlen=PLAYER_MSGQUEUE_DEFAULT_MAXLEN)
virtual int	Setup ()
	Initialize the driver.
virtual int	Shutdown ()
	Finalize the driver.
int	ProcessMessage (MessageQueue *resp_queue, player_msghdr *hdr, void *data)
	Message handler.
Protected Member Functions
virtual int	ProcessFrame ()=0
virtual void	Main ()
	Main method for driver thread.
Protected Attributes
Device *	camera_driver
player_devaddr_t	camera_addr
player_camera_data_t	stored_data
bool	HaveData

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Member Function Documentation

void ImageBase::Main

(

)

[protected, virtual]

Main method for driver thread.

drivers have their own thread of execution, created using StartThread(); this is the entry point for the driver thread, and must be overloaded by all threaded drivers.

Reimplemented from Driver.

References Driver::InQueue, Driver::Lock(), Driver::ProcessMessages(), Driver::Unlock(), and MessageQueue::Wait().

int ImageBase::ProcessMessage	(	MessageQueue *	resp_queue,
		player_msghdr *	hdr,
		void *	data
	)			[virtual]

Message handler.

This function is called once for each message in the incoming queue. Reimplement it to provide message handling. Return 0 if you handled the message and -1 otherwise

Parameters:

	resp_queue	The queue to which any response should go.
	hdr	The message header
	data	The message body

Reimplemented from Driver.

References Driver::Lock(), Message::MatchMessage(), PLAYER_CAMERA_DATA_STATE, PLAYER_MSGTYPE_DATA, player_msghdr::size, and Driver::Unlock().

int ImageBase::Setup

(

)

[virtual]

Initialize the driver.

This function is called with the first client subscribes; it MUST be implemented by the driver.

Returns:

Returns 0 on success.

Implements Driver.

References Driver::device_addr, Driver::InQueue, Device::MatchDeviceAddress(), PLAYER_ERROR, and Device::Subscribe().

int ImageBase::Shutdown

(

)

[virtual]

Finalize the driver.

This function is called with the last client unsubscribes; it MUST be implemented by the driver.

Returns:

Returns 0 on success.

Implements Driver.

References Driver::InQueue, Driver::StopThread(), and Device::Unsubscribe().

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The documentation for this class was generated from the following files:

• imagebase.h
• imagebase.cc