rosbag: stream.cpp Source File

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00034 
00035 #include "rosbag/stream.h"
00036 #include "rosbag/chunked_file.h"
00037 
00038 #include <ros/ros.h>
00039 
00040 using boost::shared_ptr;
00041 
00042 namespace rosbag {
00043 
00044 // StreamFactory
00045 
00046 StreamFactory::StreamFactory(ChunkedFile* file) :
00047     uncompressed_stream_(new UncompressedStream(file)),
00048     bz2_stream_         (new BZ2Stream(file))
00049 {
00050 }
00051 
00052 shared_ptr<Stream> StreamFactory::getStream(CompressionType type) const {
00053     switch (type) {
00054         case compression::Uncompressed: return uncompressed_stream_;
00055         case compression::BZ2:          return bz2_stream_;
00056         default:                        return shared_ptr<Stream>();
00057     }
00058 }
00059 
00060 // Stream
00061 
00062 Stream::Stream(ChunkedFile* file) : file_(file) { }
00063 
00064 Stream::~Stream() { }
00065 
00066 void Stream::startWrite() { }
00067 void Stream::stopWrite()  { }
00068 void Stream::startRead()  { }
00069 void Stream::stopRead()   { }
00070 
00071 FILE*    Stream::getFilePointer()                 { return file_->file_;            }
00072 uint64_t Stream::getCompressedIn()                { return file_->compressed_in_;   }
00073 void     Stream::setCompressedIn(uint64_t nbytes) { file_->compressed_in_ = nbytes; }
00074 void     Stream::advanceOffset(uint64_t nbytes)   { file_->offset_ += nbytes;       }
00075 char*    Stream::getUnused()                      { return file_->unused_;          }
00076 int      Stream::getUnusedLength()                { return file_->nUnused_;         }
00077 void     Stream::setUnused(char* unused)          { file_->unused_ = unused;        }
00078 void     Stream::setUnusedLength(int nUnused)     { file_->nUnused_ = nUnused;      }
00079 void     Stream::clearUnused()                    { file_->clearUnused();           }
00080 
00081 } // namespace rosbag