null_types.h
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00034 
00035 #ifndef MESSAGE_FILTERS_NULL_TYPES_H
00036 #define MESSAGE_FILTERS_NULL_TYPES_H
00037 
00038 #include "connection.h"
00039 
00040 #include <boost/shared_ptr.hpp>
00041 #include <ros/time.h>
00042 
00043 #include <ros/message_traits.h>
00044 
00045 namespace message_filters
00046 {
00047 
00048 struct NullType
00049 {
00050 };
00051 typedef boost::shared_ptr<NullType const> NullTypeConstPtr;
00052 
00053 template<class M>
00054 struct NullFilter
00055 {
00056   template<typename C>
00057   Connection registerCallback(const C&)
00058   {
00059     return Connection();
00060   }
00061 
00062   template<typename P>
00063   Connection registerCallback(const boost::function<void(P)>&)
00064   {
00065     return Connection();
00066   }
00067 };
00068 }
00069 
00070 namespace ros
00071 {
00072 namespace message_traits
00073 {
00074 template<>
00075 struct TimeStamp<message_filters::NullType>
00076 {
00077   static ros::Time value(const message_filters::NullType&)
00078   {
00079     return ros::Time();
00080   }
00081 };
00082 }
00083 }
00084 
00085 #endif // MESSAGE_FILTERS_NULL_TYPES_H


message_filters
Author(s): Josh Faust, Vijay Pradeep
autogenerated on Tue Mar 7 2017 04:01:23