[libvirt] virConnectClose() API function question

[Michal Novotny]

Hi,
as I've been working on libvirt-php I've been able to see that sometimes
the virConnectClose() API function is returning the undefined value,
like in this example:

[2011-06-21 17:29:59 libvirt-php/core]: libvirt_domain_get_info:
virDomainGetInfo(0xb3184158) returned 0
[2011-06-21 17:29:59 libvirt-php/core]: Freeing libvirt domain resource
at 0x3d9751b3184158
[2011-06-21 17:29:59 libvirt-php/core]: free_resource:
virDomainFree(0xb3184158) completed successfully
[2011-06-21 17:29:59 libvirt-php/core]: php_libvirt_connection_dtor:
virConnectClose(0xb3382588) returned 1 ((null))
[2011-06-21 17:29:59 libvirt-php/core]: check_resource_allocation:
libvirt domain resource (conn 0xb3184158) is not allocated

In the API reference of libvirt there's an information that it returns 0
or -1 ("0 in case of success or -1 in case of error" as can be seen at
[1]) however according to my libvirt-php tests with the debug log
enabled there's a return value of 1 with the error string (as caught by
libvirt error handler) undefined, i.e. NULL.

Does anybody have an idea what may be wrong and why is libvirt sometimes
returning undefined value for this function?

Thanks,
Michal

[1] http://libvirt.org/html/libvirt-libvirt.html#virConnectClose

-- 
Michal Novotny <minovotn at redhat.com>, RHCE, Red Hat
Virtualization Team (xen userspace) | libvirt-php bindings