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virsh: Register and unregister the close callback also in cmdConnect

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This patch improves the error message after disconnecting from the
hypervisor and adds the close callback operations required not to leak
the callback reference.
This commit is contained in:
Peter Krempa 2013-03-27 14:37:01 +01:00
parent ca9e73ebb6
commit 69ab07560a
1 changed files with 16 additions and 6 deletions
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22
tools/virsh.c
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@ -391,10 +391,14 @@ cmdConnect(vshControl *ctl, const vshCmd *cmd)
if (ctl->conn) {
int ret;
if ((ret = virConnectClose(ctl->conn)) != 0) {
vshError(ctl, _("Failed to disconnect from the hypervisor, %d leaked reference(s)"), ret);
return false;
}
virConnectUnregisterCloseCallback(ctl->conn, vshCatchDisconnect);
ret = virConnectClose(ctl->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
ctl->conn = NULL;
}
@ -411,10 +415,16 @@ cmdConnect(vshControl *ctl, const vshCmd *cmd)
ctl->conn = virConnectOpenAuth(ctl->name, virConnectAuthPtrDefault,
ctl->readonly ? VIR_CONNECT_RO : 0);
if (!ctl->conn)
if (!ctl->conn) {
vshError(ctl, "%s", _("Failed to connect to the hypervisor"));
return false;
}
return !!ctl->conn;
if (virConnectRegisterCloseCallback(ctl->conn, vshCatchDisconnect,
NULL, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
return true;
}