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Marc Alexander Lehmann 15 years ago
parent 91699fc1f9
commit 0ffe8988ba

@ -2699,7 +2699,8 @@ be detected at runtime.
Libev requires an integer type (suitable for storing C<0> or C<1>) whose
access is atomic with respect to other threads or signal contexts. No such
type is easily found in the C language, so you can provide your own type
that you know is safe for your purposes.
that you know is safe for your purposes. It is used both for signal handler "locking"
as well as for signal and thread safety in C<ev_async> watchers.
In the absense of this define, libev will use C<sig_atomic_t volatile>
(from F<signal.h>), which is usually good enough on most platforms.