LTP GCOV extension - code coverage report
Current view: directory - usr/include/tagcoll-2.0.11/tagcoll/stream - sink.h
Test: lcov.info
Date: 2008-08-14 Instrumented lines: 8
Code covered: 100.0 % Executed lines: 8

       1                 : #ifndef TAGCOLL_STREAM_SINK_H
       2                 : #define TAGCOLL_STREAM_SINK_H
       3                 : 
       4                 : /** \file
       5                 :  * Consumer interface for a stream of tagged items
       6                 :  */
       7                 : 
       8                 : /*
       9                 :  * Copyright (C) 2003,2004,2005,2006  Enrico Zini <enrico@debian.org>
      10                 :  *
      11                 :  * This library is free software; you can redistribute it and/or
      12                 :  * modify it under the terms of the GNU Lesser General Public
      13                 :  * License as published by the Free Software Foundation; either
      14                 :  * version 2.1 of the License, or (at your option) any later version.
      15                 :  *
      16                 :  * This library is distributed in the hope that it will be useful,
      17                 :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      18                 :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      19                 :  * Lesser General Public License for more details.
      20                 :  *
      21                 :  * You should have received a copy of the GNU Lesser General Public
      22                 :  * License along with this library; if not, write to the Free Software
      23                 :  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
      24                 :  */
      25                 : 
      26                 : #include <wibble/mixin.h>
      27                 : #include <utility>
      28                 : 
      29                 : namespace tagcoll {
      30                 : namespace stream {
      31                 : 
      32                 : /**
      33                 :  * Consumer that discards its input
      34                 :  */
      35                 : class Sink : public wibble::mixin::OutputIterator<Sink>
      36                 : {
      37                 : public:
      38                 :         template<typename Data>
      39                 :         const Sink& operator=(const Data&) const { return *this; }
      40                 : };
      41                 : 
      42                 : inline Sink sink()
      43                 : {
      44                 :         return Sink();
      45                 : }
      46                 : 
      47                 : 
      48                 : /**
      49                 :  * Consumer that discards its input
      50                 :  */
      51                 : template<typename COUNTER>
      52                 : class CountingSink : public wibble::mixin::OutputIterator< CountingSink<COUNTER> >
      53                 : {
      54                 :         COUNTER& countItems;
      55                 :         COUNTER& countTags;
      56                 : 
      57                 : public:
      58               2 :         CountingSink(COUNTER& countItems, COUNTER& countTags) :
      59               2 :                 countItems(countItems), countTags(countTags) {}
      60                 : 
      61                 :         // TODO: see if there's a way of implementing the count using size() when
      62                 :         // the method actually exists
      63                 :         template<typename ITEMS, typename TAGS>
      64           42266 :         CountingSink& operator=(const std::pair<ITEMS, TAGS>& data)
      65                 :         {
      66           42266 :                 countItems += data.first.size();
      67           42266 :                 countTags += data.second.size();
      68           42266 :                 return *this;
      69                 :         }
      70                 : };
      71                 : 
      72                 : template<typename COUNTER>
      73               2 : inline CountingSink<COUNTER> countingSink(COUNTER& countItems, COUNTER& countTags)
      74                 : {
      75               2 :         return CountingSink<COUNTER>(countItems, countTags);
      76                 : }
      77                 : 
      78                 : 
      79                 : }
      80                 : }
      81                 : 
      82                 : // vim:set ts=4 sw=4:
      83                 : #endif

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