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* Now makes sure the timer is properly shutdown when deleting the arp_entry. 

* This fixes a crashing bug that could be triggered when switching IP addresses
  often.
* Also added a TODO about another possible crashing problem I won't look into
  today anymore.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30165 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2009-04-14 21:24:43 +00:00
parent 36f4b5cc7b
commit b4a57bf88b
1 changed files with 7 additions and 1 deletions
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8
src/add-ons/kernel/network/datalink_protocols/arp/arp.cpp
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@ -1,5 +1,5 @@
/*
* Copyright 2006-2008, Haiku, Inc. All Rights Reserved.
* Copyright 2006-2009, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
@ -242,6 +242,10 @@ arp_entry::Add(in_addr_t protocolAddress, sockaddr_dl *hardwareAddress,
arp_entry::~arp_entry()
{
// make sure there is no active timer left for us
sStackModule->cancel_timer(&timer);
sStackModule->wait_for_timer(&timer);
ClearQueue();
}
@ -562,6 +566,8 @@ arp_timer(struct net_timer *timer, void *data)
// the entry has aged so much that we're going to remove it
TRACE((" remove ARP entry %p!\n", entry));
// TODO: we need to make sure we aren't deleting this entry from
// somewhere else right now!
mutex_lock(&sCacheLock);
hash_remove(sCache, entry);
mutex_unlock(&sCacheLock);