[Boost-bugs] [Boost C++ Libraries] #5115: iostreams non_blocking_adapter read bug

Subject: [Boost-bugs] [Boost C++ Libraries] #5115: iostreams non_blocking_adapter read bug
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-01-24 18:31:19

#5115: iostreams non_blocking_adapter read bug
------------------------------------------------+---------------------------
 Reporter:  Mario Suvajac <msuvajac@…>          |       Owner:  turkanis   
     Type:  Bugs                                |      Status:  new        
Milestone:  To Be Determined                    |   Component:  iostreams  
  Version:  Boost Development Trunk             |    Severity:  Showstopper
 Keywords:  non_blocking_adapter, read          |  
------------------------------------------------+---------------------------
 When reading from device resulting amount of read bytes is ignored.

 line 31. of boost/iostreams/detail/adapter/non_blocking_adapter.hpp
 {{{
      explicit non_blocking_adapter(Device& dev) : device_(dev) { }
      std::streamsize read(char_type* s, std::streamsize n)
      {
          std::streamsize result = 0;
          while (result < n) {
 -            std::streamsize amt = iostreams::read(device_, s, n);
 +            std::streamsize amt = iostreams::read(device_, s, n -
 result);
              if (amt == -1)
                  break;
              result += amt;
          }
          return result != 0 ? result : -1;
      }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5115>
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