R * yield()
{
BOOST_ASSERT( is_running() );
BOOST_ASSERT( ! is_complete() );
flags_ &= ~flag_running;
param_type to;
param_type * from(
reinterpret_cast< param_type * >(
callee_.jump(
caller_,
reinterpret_cast< intptr_t >( & to),
preserve_fpu() ) ) );
flags_ |= flag_running;
if ( from->do_unwind) throw forced_unwind();
BOOST_ASSERT( from->data);
return from->data;
}
R * yield_to_( Other * other, typename Other::param_type * to)
{
BOOST_ASSERT( ! is_complete() );
BOOST_ASSERT( is_running() );
BOOST_ASSERT( ! other->is_complete() );
BOOST_ASSERT( ! other->is_running() );
other->caller_ = caller_;
flags_ &= ~flag_running;
param_type * from(
reinterpret_cast< param_type * >(
callee_.jump(
other->callee_,
reinterpret_cast< intptr_t >( to),
preserve_fpu() ) ) );
flags_ |= flag_running;
if ( from->do_unwind) throw forced_unwind();
BOOST_ASSERT( from->data);
return from->data;
}