Re: [Qemu-devel] [PATCH 06/21] vl: add a tmp pointer so that a handler can delete the entry to which it belongs.

[Yoshiaki Tamura]

2010/12/8 Isaku Yamahata <address@hidden>:
> QLIST_FOREACH_SAFE?

Thanks! So, it should be,

QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, ne) {
    e->cb(e->opaque, running, reason);
}

I'll put it in the next spin.

Yoshi

>
> On Thu, Nov 25, 2010 at 03:06:45PM +0900, Yoshiaki Tamura wrote:
>> By copying the next entry to a tmp pointer,
>> qemu_del_vm_change_state_handler() can be called in the handler.
>>
>> Signed-off-by: Yoshiaki Tamura <address@hidden>
>> ---
>>  vl.c |    5 +++--
>>  1 files changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/vl.c b/vl.c
>> index 805e11f..6b6aec0 100644
>> --- a/vl.c
>> +++ b/vl.c
>> @@ -1073,11 +1073,12 @@ void 
>> qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
>>
>>  void vm_state_notify(int running, int reason)
>>  {
>> -    VMChangeStateEntry *e;
>> +    VMChangeStateEntry *e, *ne;
>>
>>      trace_vm_state_notify(running, reason);
>>
>> -    for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
>> +    for (e = vm_change_state_head.lh_first; e; e = ne) {
>> +        ne = e->entries.le_next;
>>          e->cb(e->opaque, running, reason);
>>      }
>>  }
>> --
>> 1.7.1.2
>>
>>
>
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> yamahata
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