Fawkes API
Fawkes Development Version
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Interface listener for network handler. More...
#include <>>
Public Member Functions | |
BlackBoardNetHandlerInterfaceListener (BlackBoard *blackboard, Interface *interface, FawkesNetworkHub *hub, unsigned int clid) | |
Constructor. | |
virtual | ~BlackBoardNetHandlerInterfaceListener () |
Destructor. | |
virtual void | bb_interface_data_changed (Interface *interface) throw () |
BlackBoard data changed notification. | |
virtual bool | bb_interface_message_received (Interface *interface, Message *message) throw () |
BlackBoard message received notification. | |
virtual void | bb_interface_writer_added (Interface *interface, unsigned int instance_serial) throw () |
A writing instance has been opened for a watched interface. | |
virtual void | bb_interface_writer_removed (Interface *interface, unsigned int instance_serial) throw () |
A writing instance has been closed for a watched interface. | |
virtual void | bb_interface_reader_added (Interface *interface, unsigned int instance_serial) throw () |
A reading instance has been opened for a watched interface. | |
virtual void | bb_interface_reader_removed (Interface *interface, unsigned int instance_serial) throw () |
A reading instance has been closed for a watched interface. |
Interface listener for network handler.
This class is used by the BlackBoardNetworkHandler to track interface changes and send out notifications timely.
fawkes::BlackBoardNetHandlerInterfaceListener::BlackBoardNetHandlerInterfaceListener | ( | BlackBoard * | blackboard, |
Interface * | interface, | ||
FawkesNetworkHub * | hub, | ||
unsigned int | clid | ||
) |
Constructor.
blackboard | local BlackBoard |
interface | interface to care about |
hub | Fawkes network hub to use to send messages |
clid | client ID of the client which opened this interface |
Definition at line 55 of file interface_listener.cpp.
References fawkes::BlackBoardInterfaceListener::bbil_add_data_interface(), fawkes::BlackBoardInterfaceListener::bbil_add_reader_interface(), fawkes::BlackBoardInterfaceListener::bbil_add_writer_interface(), fawkes::Interface::is_writer(), fawkes::BlackBoardInterfaceListener::bbil_add_message_interface(), and fawkes::BlackBoard::register_listener().
fawkes::BlackBoardNetHandlerInterfaceListener::~BlackBoardNetHandlerInterfaceListener | ( | ) | [virtual] |
Destructor.
Definition at line 78 of file interface_listener.cpp.
References fawkes::BlackBoard::unregister_listener().
void fawkes::BlackBoardNetHandlerInterfaceListener::bb_interface_data_changed | ( | Interface * | interface | ) | throw () [virtual] |
BlackBoard data changed notification.
This is called whenever the data in an interface that you registered for is modified. This happens if a writer calls the Interface::write() method.
interface | interface instance that you supplied to bbil_add_data_interface() |
Reimplemented from fawkes::BlackBoardInterfaceListener.
Definition at line 85 of file interface_listener.cpp.
References fawkes::bb_idata_msg_t::serial, fawkes::bb_idata_msg_t::data_size, and fawkes::LibLogger::log_warn().
bool fawkes::BlackBoardNetHandlerInterfaceListener::bb_interface_message_received | ( | Interface * | interface, |
Message * | message | ||
) | throw () [virtual] |
BlackBoard message received notification.
This is called whenever a message is received for this interface. This method is only called for writing instances of an interface, never on reading instances. If you have processed the message already, you can order that the message is not enqueued by returning false. Returning true will enqueue the message as usual. You should only do very (very!) quick tasks directly in this method, as it is out of the regular thread context and can harm performance of other plugins and the system as a whole. Note that if you decide to return false the message is not referenced. If you want to keep it longer you have to ref() it by yourself. An example where this would really make sense is a "STOP" message for the motor, which needs to be processed ASAP and maybe even waiting a couple of miliseconds for the next cycle is not acceptable.
interface | interface instance that you supplied to bbil_add_message_interface() |
message | the message that was sent |
Reimplemented from fawkes::BlackBoardInterfaceListener.
Definition at line 108 of file interface_listener.cpp.
References fawkes::bb_imessage_msg_t::serial, fawkes::bb_imessage_msg_t::msg_type, fawkes::bb_imessage_msg_t::data_size, fawkes::bb_imessage_msg_t::msgid, fawkes::bb_imessage_msg_t::hops, and fawkes::LibLogger::log_warn().
void fawkes::BlackBoardNetHandlerInterfaceListener::bb_interface_reader_added | ( | Interface * | interface, |
unsigned int | instance_serial | ||
) | throw () [virtual] |
A reading instance has been opened for a watched interface.
This is called whenever a reading instance of the interface you are watching is opened.
interface | interface instance that you supplied to bbil_add_reader_interface() |
instance_serial | the instance serial of the reading instance that has just been added. |
Reimplemented from fawkes::BlackBoardInterfaceListener.
Definition at line 170 of file interface_listener.cpp.
void fawkes::BlackBoardNetHandlerInterfaceListener::bb_interface_reader_removed | ( | Interface * | interface, |
unsigned int | instance_serial | ||
) | throw () [virtual] |
A reading instance has been closed for a watched interface.
This is called whenever a reading instance of an interface you are watching is closed.
interface | interface instance that you supplied to bbil_add_reader_interface() |
instance_serial | the instance serial of the reading instance that has just been removed. |
Reimplemented from fawkes::BlackBoardInterfaceListener.
Definition at line 178 of file interface_listener.cpp.
void fawkes::BlackBoardNetHandlerInterfaceListener::bb_interface_writer_added | ( | Interface * | interface, |
unsigned int | instance_serial | ||
) | throw () [virtual] |
A writing instance has been opened for a watched interface.
This is called whenever a writing instance of the interface you are watching is opened.
interface | interface instance that you supplied to bbil_add_writer_interface() |
instance_serial | the instance serial of the writing instance that has just been added. |
Reimplemented from fawkes::BlackBoardInterfaceListener.
Definition at line 154 of file interface_listener.cpp.
void fawkes::BlackBoardNetHandlerInterfaceListener::bb_interface_writer_removed | ( | Interface * | interface, |
unsigned int | instance_serial | ||
) | throw () [virtual] |
A writing instance has been closed for a watched interface.
This is called whenever a writing instance of an interface you are watching is closed.
interface | interface instance that you supplied to bbil_add_writer_interface() |
instance_serial | the instance serial of the writing instance that has just been removed. |
Reimplemented from fawkes::BlackBoardInterfaceListener.
Definition at line 162 of file interface_listener.cpp.