Re: [libvirt] [PATCH] daemon: Don't blindly unregister domain events

2010-01-14 Thread Daniel P. Berrange
On Wed, Jan 13, 2010 at 03:50:04PM -0500, Cole Robinson wrote:
> The daemon will attempt to unregister domain events on client disconnect,
> even if no events were ever registered. This raises an unneeded error.
> 
> Track in the qemu_client structure if events have been registered, and
> check this when performing cleanup.
> 
> Signed-off-by: Cole Robinson 
> ---
>  daemon/libvirtd.c |2 +-
>  daemon/libvirtd.h |1 +
>  daemon/remote.c   |4 
>  3 files changed, 6 insertions(+), 1 deletions(-)
> 
> diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
> index c53ef0a..61a9728 100644
> --- a/daemon/libvirtd.c
> +++ b/daemon/libvirtd.c
> @@ -1447,7 +1447,7 @@ void qemudDispatchClientFailure(struct qemud_client 
> *client) {
>  }
>  
>  /* Deregister event delivery callback */
> -if(client->conn) {
> +if (client->conn && client->domain_events_registered) {
>  DEBUG0("Deregistering to relay remote events");
>  virConnectDomainEventDeregister(client->conn, 
> remoteRelayDomainEvent);
>  }
> diff --git a/daemon/libvirtd.h b/daemon/libvirtd.h
> index e3624c6..2f647f3 100644
> --- a/daemon/libvirtd.h
> +++ b/daemon/libvirtd.h
> @@ -177,6 +177,7 @@ struct qemud_client {
>  int watch;
>  int readonly:1;
>  int closing:1;
> +int domain_events_registered:1;
>  
>  struct sockaddr_storage addr;
>  socklen_t addrlen;
> diff --git a/daemon/remote.c b/daemon/remote.c
> index 41b9974..e39d6d1 100644
> --- a/daemon/remote.c
> +++ b/daemon/remote.c
> @@ -4775,6 +4775,8 @@ remoteDispatchDomainEventsRegister (struct qemud_server 
> *server ATTRIBUTE_UNUSED
>  
>  if (ret)
>  ret->cb_registered = 1;
> +
> +client->domain_events_registered = 1;
>  return 0;
>  }
>  
> @@ -4796,6 +4798,8 @@ remoteDispatchDomainEventsDeregister (struct 
> qemud_server *server ATTRIBUTE_UNUS
>  
>  if (ret)
>  ret->cb_registered = 0;
> +
> +client->domain_events_registered = 0;
>  return 0;
>  }
>  

ACK

Daniel
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[libvirt] [PATCH] daemon: Don't blindly unregister domain events

2010-01-13 Thread Cole Robinson
The daemon will attempt to unregister domain events on client disconnect,
even if no events were ever registered. This raises an unneeded error.

Track in the qemu_client structure if events have been registered, and
check this when performing cleanup.

Signed-off-by: Cole Robinson 
---
 daemon/libvirtd.c |2 +-
 daemon/libvirtd.h |1 +
 daemon/remote.c   |4 
 3 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
index c53ef0a..61a9728 100644
--- a/daemon/libvirtd.c
+++ b/daemon/libvirtd.c
@@ -1447,7 +1447,7 @@ void qemudDispatchClientFailure(struct qemud_client 
*client) {
 }
 
 /* Deregister event delivery callback */
-if(client->conn) {
+if (client->conn && client->domain_events_registered) {
 DEBUG0("Deregistering to relay remote events");
 virConnectDomainEventDeregister(client->conn, remoteRelayDomainEvent);
 }
diff --git a/daemon/libvirtd.h b/daemon/libvirtd.h
index e3624c6..2f647f3 100644
--- a/daemon/libvirtd.h
+++ b/daemon/libvirtd.h
@@ -177,6 +177,7 @@ struct qemud_client {
 int watch;
 int readonly:1;
 int closing:1;
+int domain_events_registered:1;
 
 struct sockaddr_storage addr;
 socklen_t addrlen;
diff --git a/daemon/remote.c b/daemon/remote.c
index 41b9974..e39d6d1 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -4775,6 +4775,8 @@ remoteDispatchDomainEventsRegister (struct qemud_server 
*server ATTRIBUTE_UNUSED
 
 if (ret)
 ret->cb_registered = 1;
+
+client->domain_events_registered = 1;
 return 0;
 }
 
@@ -4796,6 +4798,8 @@ remoteDispatchDomainEventsDeregister (struct qemud_server 
*server ATTRIBUTE_UNUS
 
 if (ret)
 ret->cb_registered = 0;
+
+client->domain_events_registered = 0;
 return 0;
 }
 
-- 
1.6.5.2

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