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