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#include "selector.ih"
int Selector::wait()
{
timeval t = d_alarm;
if ( // no fd available and no waiting
// time
isEmpty(d_read) and isEmpty(d_write) and isEmpty(d_except)
&&
t.tv_sec == -1 && t.tv_usec == -1
)
return 0;
d_ret_read = d_read;
d_ret_write = d_write;
d_ret_except = d_except;
d_readidx = 0;
d_writeidx = 0;
d_exceptidx = 0;
d_ret = select(d_max, &d_ret_read, &d_ret_write, &d_ret_except,
t.tv_sec == -1 && t.tv_usec == -1 ? 0 : &t);
if (d_ret < 0)
throw Exception{} << "Selector::wait()";
return d_ret;
}
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