streambuf & csdbg::streambuf::operator= ( const streambuf &  rval )

virtual

Assignment operator.

Parameters

[in]

rval

the assigned object

Returns

*this

Exceptions

std::bad_alloc
csdbg::exception

Definition at line 96 of file streambuf.cpp.

References close(), m_handle, csdbg::string::operator=(), and unlikely.

Referenced by csdbg::filebuf::operator=(), csdbg::sttybuf::operator=(), and csdbg::tcpsockbuf::operator=().

{
  if ( unlikely(this == &rval) )
    return *this;

  /* Close the current stream (to sync current data) */
  close();

  /* Copy the buffer */
  string::operator=(rval);

  i32 fd = rval.m_handle;
  if ( unlikely(fd < 0) )
    return *this;

  /* Duplicate the handle (descriptor) */
  m_handle = dup(fd);
  if ( unlikely(m_handle < 0) )
    throw exception(
      "failed to duplicate descriptor %d (errno %d - %s)",
      fd,
      errno,
      strerror(errno)
    );

  return *this;
}

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