[<<][c][>>][..]Tue Aug 18 12:42:11 CEST 2009
Dynamic scope and thread-local variables.
Dynamic scoping is easy to implement using global variables and
save/restore combined with some `dynamic-wind' guard for longjmp() in
case that's used.
However, in the presence of pre-emptive threads, this isn't an
option. So how to use thread-local storage?