diff options
| author | Jesse Gross <jesse@nicira.com> | 2011-07-31 14:47:32 -0700 |
|---|---|---|
| committer | Jesse Gross <jesse@nicira.com> | 2011-09-23 15:27:49 -0700 |
| commit | 1e276d1a10539a8cd97d2ad63c073a9a43f0f1ef (patch) | |
| tree | 832bda11a8b73845e42712ae752ef041e340ba16 /lib/netlink-socket.h | |
| parent | be8194bb5935141f12339085032da5d63f856f16 (diff) | |
poll-loop: Enable checking whether a FD caused a wakeup.
Each time we run through the poll loop, we check all file descriptors
that we were waiting on to see if there is data available. However,
this requires a system call and poll already provides information on
which FDs caused the wakeup so it is inefficient as the number of
active FDs grows. This provides a way to check whether a given FD
has data.
Diffstat (limited to 'lib/netlink-socket.h')
| -rw-r--r-- | lib/netlink-socket.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/netlink-socket.h b/lib/netlink-socket.h index ff248583..d789f412 100644 --- a/lib/netlink-socket.h +++ b/lib/netlink-socket.h @@ -59,6 +59,7 @@ int nl_sock_transact(struct nl_sock *, const struct ofpbuf *request, int nl_sock_drain(struct nl_sock *); void nl_sock_wait(const struct nl_sock *, short int events); +short int nl_sock_woke(const struct nl_sock *); uint32_t nl_sock_pid(const struct nl_sock *); |