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notifiers: Create and destroy nln_notifiers.

Browse Source 
This patch changes the interface of netlink-notifier and
rtnetlink-link.  Now nln_notifiers are allocated and destroyed by
the module instead of passed in by callers.  This allows the
definition of nln_notifier to be hidden, and generally cleans up
the code.
This commit is contained in:
Ethan Jackson
2011-09-15 11:21:23 -07:00
parent 18a2378164
commit 2ee6545f2b
8 changed files with 81 additions and 62 deletions
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16
lib/dpif-linux.c
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@@ -137,7 +137,7 @@ struct dpif_linux {
/* Change notification. */
struct sset changed_ports; /* Ports that have changed. */
struct nln_notifier port_notifier;
struct nln_notifier *port_notifier;
bool change_error;
/* Queue of unused ports. */
@@ -253,13 +253,12 @@ static int
open_dpif(const struct dpif_linux_dp *dp, struct dpif **dpifp)
{
struct dpif_linux *dpif;
int error;
int i;
dpif = xmalloc(sizeof *dpif);
error = nln_notifier_register(nln, &dpif->port_notifier,
dpif_linux_port_changed, dpif);
if (error) {
dpif->port_notifier = nln_notifier_create(nln, dpif_linux_port_changed,
dpif);
if (!dpif->port_notifier) {
goto error_free;
}
@@ -286,7 +285,7 @@ open_dpif(const struct dpif_linux_dp *dp, struct dpif **dpifp)
error_free:
free(dpif);
return error;
return EINVAL;
}
static void
@@ -294,10 +293,7 @@ dpif_linux_close(struct dpif *dpif_)
{
struct dpif_linux *dpif = dpif_linux_cast(dpif_);
if (nln) {
nln_notifier_unregister(nln, &dpif->port_notifier);
}
nln_notifier_destroy(dpif->port_notifier);
nl_sock_destroy(dpif->mc_sock);
sset_destroy(&dpif->changed_ports);
free(dpif->lru_bitmap);