id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
3572,mapped_file: reading/writing mapped memory can throw (structured) exceptions? (windows),xurux1-mail@…,Jonathan Turkanis,"msdn: ""Reading and Writing From a File View""
(http://msdn.microsoft.com/en-us/library/aa366801(VS.85).aspx)

""Reading from or writing to a file view can cause an EXCEPTION_IN_PAGE_ERROR exception. 
For example, accessing a mapped file that resides on a remote server can generate an exception 
if the connection to the server is lost. Exceptions can also occur because of a full disk, an
underlying device failure, or a memory allocation failure. When writing to a file view, exceptions 
can also occur because the file is shared and a different process has locked a byte range. To guard 
against exceptions due to input and output (I/O) errors, all attempts to access memory mapped files 
should be wrapped in structured exception handlers""

  DWORD dwLength;
  __try
  {
    dwLength = *((LPDWORD) lpMapAddress);
  }
  __except(GetExceptionCode()==EXCEPTION_IN_PAGE_ERROR ?
    EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
  {
    // Failed to read from the view.
  }

... so it should be mentioned in the documentation?
(windows specific)
",Bugs,new,Boost 1.41.0,iostreams,Boost 1.40.0,Problem,,"mapped_file, documentation",