Orocos Real-Time Toolkit
2.8.3
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Objects implementing this interface have the capability to convert data sources to and from a binary representation. More...
#include <rtt/types/TypeMarshaller.hpp>
Public Member Functions | |
virtual void * | createCookie () const |
Overload in subclasses for marshallers that need to allocate some internal data. More... | |
virtual void | deleteCookie (void *cookie) const |
Called to delete a cookie created with createCookie. More... | |
virtual std::pair< void const *, int > | fillBlob (base::DataSourceBase::shared_ptr source, void *blob, int size, void *cookie=0) const =0 |
Create an transportable object for a protocol which contains the value of source. More... | |
virtual bool | updateFromBlob (const void *blob, int size, base::DataSourceBase::shared_ptr target, void *cookie=0) const =0 |
Update target with the contents of blob which is an object of a protocol. More... | |
virtual unsigned int | getSampleSize (base::DataSourceBase::shared_ptr sample, void *cookie=0) const =0 |
Returns the size in bytes of a marshalled data element. More... | |
virtual base::ChannelElementBase::shared_ptr | createStream (base::PortInterface *port, const ConnPolicy &policy, bool is_sender) const =0 |
Creates a streaming channel element for reading or writing over this transport. More... | |
Objects implementing this interface have the capability to convert data sources to and from a binary representation.
Definition at line 61 of file TypeMarshaller.hpp.
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inlinevirtual |
Overload in subclasses for marshallers that need to allocate some internal data.
The protocol will call deleteCookie(void*) accordingly
Definition at line 68 of file TypeMarshaller.hpp.
Referenced by RTT::mqueue::MQSendRecv::setupStream().
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pure virtualinherited |
Creates a streaming channel element for reading or writing over this transport.
It returns a ChannelElementBase that provides the implementation of sending or receiving data through the transport. Both sender and receiver find each other using the channel_id argument. Transports that do not support streaming may return null
port | The port for which this channel is setup. |
channel_id | If the transport receives a non-empty channel_id, it will create a channel that connects to this id. If channel id is empty, it will be filled in with a unique identifier that identifies this channel. This allows the local caller to connect to the remote channel in a second invocation of createRemoteChannel. |
is_sender | Set to true in case you will write() to this channel element, set it to false in case you will read() from this channel element. |
Implemented in RTT::corba::CorbaFallBackProtocol, RTT::corba::CorbaTypeTransporter, and RTT::mqueue::MQTemplateProtocolBase< T >.
Referenced by RTT::corba::RemoteInputPort::buildRemoteChannelOutput(), RTT::internal::ConnFactory::createAndCheckOutOfBandConnection(), RTT::internal::ConnFactory::createAndCheckStream(), and RTT::corba::CDataFlowInterface_i::deregisterChannel().
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inlinevirtual |
Called to delete a cookie created with createCookie.
Definition at line 70 of file TypeMarshaller.hpp.
References fillBlob(), getSampleSize(), and updateFromBlob().
Referenced by RTT::mqueue::MQSendRecv::cleanupStream().
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pure virtual |
Create an transportable object for a protocol which contains the value of source.
This must be a real-time function which does not allocate memory
source | The data to be read |
blob | Suggested target memory area to write to. In case the type marshaller does not need this, it will return an alternative as a first element in the returned std::pair. |
size | The size of the memory area pointed by blob |
size
Implemented in RTT::mqueue::MQTemplateProtocol< T >, and RTT::mqueue::MQSerializationProtocol< T >.
Referenced by deleteCookie(), and RTT::mqueue::MQSendRecv::mqWrite().
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pure virtual |
Returns the size in bytes of a marshalled data element.
Implemented in RTT::mqueue::MQSerializationProtocol< T >, and RTT::mqueue::MQTemplateProtocol< T >.
Referenced by RTT::internal::ConnFactory::createAndCheckOutOfBandConnection(), RTT::internal::ConnFactory::createAndCheckStream(), deleteCookie(), RTT::mqueue::MQSendRecv::mqNewSample(), and RTT::mqueue::MQSendRecv::setupStream().
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pure virtual |
Update target with the contents of blob which is an object of a protocol.
The given data source is guaranteed to be an AssignableDataSource
Implemented in RTT::mqueue::MQSerializationProtocol< T >, and RTT::mqueue::MQTemplateProtocol< T >.
Referenced by deleteCookie(), RTT::mqueue::MQSendRecv::mqRead(), and RTT::mqueue::MQSendRecv::mqReady().