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netif_set_link_up/down: only do something if the link state actually changes

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goldsimon 2010-02-12 16:50:23 +00:00
parent 2e795d2706
commit 29eb56a2f6
2 changed files with 27 additions and 19 deletions
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4
CHANGELOG
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@ -119,6 +119,10 @@ HISTORY
++ Bugfixes: ++ Bugfixes:
2010-02-12: Simon Goldschmidt
* netif.c: netif_set_link_up/down: only do something if the link state
actually changes
2010-02-12: Simon Goldschmidt/Stephane Lesage 2010-02-12: Simon Goldschmidt/Stephane Lesage
* api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
connect) connect)

4
src/core/netif.c
View File

@ -506,6 +506,7 @@ void netif_set_status_callback(struct netif *netif, netif_status_callback_fn sta
*/ */
void netif_set_link_up(struct netif *netif ) void netif_set_link_up(struct netif *netif )
{ {
if (!(netif->flags & NETIF_FLAG_LINK_UP)) {
netif->flags |= NETIF_FLAG_LINK_UP; netif->flags |= NETIF_FLAG_LINK_UP;
#if LWIP_DHCP #if LWIP_DHCP
@ -537,15 +538,18 @@ void netif_set_link_up(struct netif *netif )
} }
NETIF_LINK_CALLBACK(netif); NETIF_LINK_CALLBACK(netif);
} }
}
/** /**
* Called by a driver when its link goes down * Called by a driver when its link goes down
*/ */
void netif_set_link_down(struct netif *netif ) void netif_set_link_down(struct netif *netif )
{ {
if (netif->flags & NETIF_FLAG_LINK_UP) {
netif->flags &= ~NETIF_FLAG_LINK_UP; netif->flags &= ~NETIF_FLAG_LINK_UP;
NETIF_LINK_CALLBACK(netif); NETIF_LINK_CALLBACK(netif);
} }
}
/** /**
* Set callback to be called when link is brought up/down * Set callback to be called when link is brought up/down