This is a very simple and light file descriptor, that can be used as
event wait/dispatch by userspace (both wait and dispatch) and by the
kernel (dispatch only). It can be used instead of pipe(2) in all cases
where those would simply be used to signal events. Their kernel overhead
is much lower
This is a very simple and light file descriptor, that can be used as
event wait/dispatch by userspace (both wait and dispatch) and by the
kernel (dispatch only). It can be used instead of pipe(2) in all cases
where those would simply be used to signal events. Their kernel overhead
is much lower
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