A class pointing into a bag file. More...
#include <message_instance.h>
Public Member Functions | |
| std::string | getCallerId () const |
| boost::shared_ptr< ros::M_string > | getConnectionHeader () const |
| std::string const & | getDataType () const |
| std::string const & | getMD5Sum () const |
| std::string const & | getMessageDefinition () const |
| ros::Time const & | getTime () const |
| std::string const & | getTopic () const |
| template<class T > | |
| boost::shared_ptr< T > | instantiate () const |
| Templated call to instantiate a message. | |
| bool | isLatching () const |
| template<class T > | |
| bool | isType () const |
| Test whether the underlying message of the specified type. | |
| uint32_t | size () const |
| Size of serialized message. | |
| template<typename Stream > | |
| void | write (Stream &stream) const |
| Write serialized message contents out to a stream. | |
Private Member Functions | |
| MessageInstance (ConnectionInfo const *connection_info, IndexEntry const &index, Bag const &bag) | |
Private Attributes | |
| Bag const * | bag_ |
| ConnectionInfo const * | connection_info_ |
| IndexEntry const | index_entry_ |
Friends | |
| class | View |
A class pointing into a bag file.
The MessageInstance class itself is fairly light weight. It simply contains a pointer to a bag-file and the index_entry necessary to get access to the corresponding data.
It adheres to the necessary ros::message_traits to be directly serializable.
Definition at line 58 of file message_instance.h.
| rosbag::MessageInstance::MessageInstance | ( | ConnectionInfo const * | connection_info, | |
| IndexEntry const & | index, | |||
| Bag const & | bag | |||
| ) | [private] |
Definition at line 36 of file message_instance.cpp.
| string rosbag::MessageInstance::getCallerId | ( | ) | const |
Definition at line 49 of file message_instance.cpp.
| shared_ptr< ros::M_string > rosbag::MessageInstance::getConnectionHeader | ( | ) | const |
Definition at line 47 of file message_instance.cpp.
| string const & rosbag::MessageInstance::getDataType | ( | ) | const |
Definition at line 43 of file message_instance.cpp.
| string const & rosbag::MessageInstance::getMD5Sum | ( | ) | const |
Definition at line 44 of file message_instance.cpp.
| string const & rosbag::MessageInstance::getMessageDefinition | ( | ) | const |
Definition at line 45 of file message_instance.cpp.
| Time const & rosbag::MessageInstance::getTime | ( | ) | const |
Definition at line 41 of file message_instance.cpp.
| string const & rosbag::MessageInstance::getTopic | ( | ) | const |
Definition at line 42 of file message_instance.cpp.
| boost::shared_ptr< T > rosbag::MessageInstance::instantiate | ( | ) | const [inline] |
Templated call to instantiate a message.
returns NULL pointer if incompatible
Definition at line 167 of file message_instance.h.
| bool rosbag::MessageInstance::isLatching | ( | ) | const |
Definition at line 54 of file message_instance.cpp.
| bool rosbag::MessageInstance::isType | ( | ) | const [inline] |
Test whether the underlying message of the specified type.
returns true iff the message is of the template type
Definition at line 161 of file message_instance.h.
| uint32_t rosbag::MessageInstance::size | ( | ) | const |
Size of serialized message.
Definition at line 59 of file message_instance.cpp.
| void rosbag::MessageInstance::write | ( | Stream & | stream | ) | const [inline] |
Write serialized message contents out to a stream.
Definition at line 175 of file message_instance.h.
friend class View [friend] |
Definition at line 60 of file message_instance.h.
Bag const* rosbag::MessageInstance::bag_ [private] |
Definition at line 100 of file message_instance.h.
ConnectionInfo const* rosbag::MessageInstance::connection_info_ [private] |
Definition at line 98 of file message_instance.h.
IndexEntry const rosbag::MessageInstance::index_entry_ [private] |
Definition at line 99 of file message_instance.h.
