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This returns the raw C pointer to the underlying object, eg:
conn = libvirt.open(None)
print "0x%x" % conn.c_pointer() # returns virConnectPtr of the connection
dom = conn.lookupByName("test")
print "0x%x" % dom.c_pointer() # returns virDomainPtr of the domain
The reason behind this is to allow us to transparently pass Python dom
objects through the libguestfs Python API.
https://bugzilla.redhat.com/show_bug.cgi?id=1075164
Implement the function which returns a list of tuples, that contains members
of virDomainFSInfo struct.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Since libvirt.h has been split out, generator.py
should be fixed accordingly. So add full list of header
files.
Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1140998
Up till bb3301ba the wrapper was freeing the passed strings for us.
However that changed after the commit. So now we don't free any
strings which results in memory leaks as reported upstream [1]:
==14265== 2,407 bytes in 1 blocks are definitely lost in loss record 1,457 of 1,550
==14265== at 0x4C2845D: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==14265== by 0x5C46624: xdr_string (in /usr/lib64/libc-2.17.so)
==14265== by 0xCFD9FCD: xdr_remote_nonnull_string (remote_protocol.c:31)
==14265== by 0xCFDC2C8: xdr_remote_domain_get_xml_desc_ret (remote_protocol.c:1617)
==14265== by 0xCFF0811: virNetMessageDecodePayload (virnetmessage.c:407)
==14265== by 0xCFE68FB: virNetClientProgramCall (virnetclientprogram.c:379)
==14265== by 0xCFBE8B1: callFull.isra.2 (remote_driver.c:6578)
==14265== by 0xCFC7F04: remoteDomainGetXMLDesc (remote_driver.c:6600)
==14265== by 0xCF8167C: virDomainGetXMLDesc (libvirt.c:4380)
==14265== by 0xCC2C4DF: libvirt_virDomainGetXMLDesc (libvirt.c:1141)
==14265== by 0x4F12B93: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==14265== by 0x4F141AC: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
The python documentation clearly advise us to call free() [2]. From
an example in their docs:
PyObject *res;
char *buf = (char *) malloc(BUFSIZ); /* for I/O */
if (buf == NULL)
return PyErr_NoMemory();
...Do some I/O operation involving buf...
res = PyString_FromString(buf);
free(buf); /* malloc'ed */
return res;
Moreover, instead of using VIR_FREE() (which we are not exporting),
I'll just go with bare free().
1: https://www.redhat.com/archives/libvir-list/2014-September/msg00736.html
2: https://docs.python.org/2/c-api/memory.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Implement the function by returning a list of tuples instead the array
of virDomainStatsRecords and store the typed parameters as dict.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Implement the function by returning a list of tuples instead the array
of virDomainStatsRecords and store the typed parameters as dict.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The new API function doesn't make sense to be exported in python. The
bindings will return native types instead of the struct array.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
In the libvirt.h we have one enum defined by references from another
enum and it leads in wrong order of definitons in python code. To
prevent this we should resolve that references before we generate the
python code.
For now we have only one level of references so we will count with that
in the generator but we should update it in the future to be more
flexible.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This API returns a list of DHCP leases for all network interfaces
connected to the given virtual network or limited output just for one
interface if mac is specified.
Example Output:
[{'iface': 'virbr3', 'ipaddr': '192.168.150.181', 'hostname': 'ubuntu14',
'expirytime': 1403737495L, 'prefix': 24, 'clientid': None,
'mac': '52:54:00:e8:73:eb', 'iaid': None, 'type': 0},
{'iface': 'virbr3', 'ipaddr': '2001:db8:ca2:2:1::bd', 'hostname': 'fedora20-test',
'expirytime': 1403738587L, 'prefix': 64, 'clientid': '00:04:b1:d8:86:42:e1:6a:aa:cf:d5:86:94:23:6f:94:04:cd',
'mac': '52:54:00:5b:40:98', 'iaid': '5980312', 'type': 1}]
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The API expose information on host's free pages counts. For easier
access, in python this API returns a dictionary such as:
In [4]: conn.getFreePages([2048,1*1024*1024], -1, 5)
Out[4]:
{-1: {2048: 114, 1048576: 4},
0: {2048: 3, 1048576: 1},
1: {2048: 100, 1048576: 1},
2: {2048: 10, 1048576: 1},
3: {2048: 1, 1048576: 1}}
At the top level of the returned dictionary there's a pair of <NUMA
node> and another dictionary that contains detailed information on
each supported page size. The information then consists of fairs of
<page size> and <count of free pages>.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While the setter can be generated automatically, the getter is not.
However, it would be a lot easier if they both share the same logic:
a python dictionary to represent the time: dict['seconds'] to
represent seconds, and dict['nseconds'] to represent nanoseconds.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Add binding for the new virDomainFSFreeze and virDomainFSThaw functions
added in libvirt 1.2.5. These require override since these take a list
of mountpoints path string. The methods are named 'fsFreeze' and
'fsThaw'.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Wrap the new virConnectDomainQemuMonitorEventRegister function
added in libvirt 1.2.3. This patch copies heavily from
network events (commit 6ea5be0) and from event loop callbacks
in libvirt-override.c, since in the libvirt_qemu module, we
must expose top-level functions rather than class members.
* generator.py (qemu_skip_function): Don't generate event code.
(qemuBuildWrappers): Delay manual portion until after imports.
* libvirt-qemu-override.py (qemuMonitorEventRegister)
(qemuMonitorEventDeregister): New file.
* libvirt-qemu-override.c
(libvirt_qemu_virConnectDomainQemuMonitorEventFreeFunc)
(libvirt_qemu_virConnectDomainQemuMonitorEventCallback)
(libvirt_qemu_virConnectDomainQemuMonitorEventRegister)
(libvirt_qemu_virConnectDomainQemuMonitorEventDeregister)
(libvirt_qemu_lookupPythonFunc, getLibvirtQemuDictObject)
(getLibvirtQemuModuleObject): New functions.
Signed-off-by: Eric Blake <eblake@redhat.com>
When enum type has '_LAST' in its name, but is not the last type in
that enum, it's skipped even though it shouldn't be. Currently, this
is the case for only VIR_NETWORK_UPDATE_COMMAND_ADD_LAST inside an
enum virNetworkUpdateCommand.
Also, since _LAST types can have other enums instead of values, that
needs to be filtered out using a try-except when converting the value.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
To assist in diff comparisons between code generated with
different versions of Python, do an explicit sort of all
functions and enums.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Call the 'replace' and 'find' functions directly on the
string variables, instead of via the 'string' module.
Python3 only accepts the latter syntax
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The sort() method previously took either a comparator function
or a key function. Only the latter is supported in Python3.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The code 'XXX.has_key(YYYY)' must be changed to be of
the form 'YYY in XXXX' which works in Python2 and 3
As an added complication, if 'YYY in XXX' is used against
an object overriding the '__getitem__' method it does not
work in Python 2.4. Instead we must use 'YYY in XXX.keys()'
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Use a syntax for exception handling that works in both Python 2 and
Python 3. The new syntax is 'except Exception as e:' but this does not
work in older Pythons so we use the most compatible way by just catching
the exception and getting the type and the exception value after the
fact.
In python3 various methods list 'dict.keys()' do not
return a list, so we must explicitly cast the result.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The previous commit changed the exception handling syntax to
use 'as' instead of a ','. This doesn't work with python 2.4
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
In python3 the string.lower() method doesn't exist, the
lower() function can only be executed against a string
variable directly. Python2 supported both approaches so
this change is compatible
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
In python3 if we use 'list' as a variable name it causes it
to hide the corresponding 'list()' function from the entire
function that holds the variable.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
If the libvirt-override-virXXXX.py file has methods which call
C APIs that don't exist in the version of libvirt built against
we need to skip copying their code.
eg for 0.9.13 libvirt we should not copy the 'listAllDomains'
method.
The way this works is that it breaks the override file into
individual methods by looking for ' def '. It then collects
the contents until the next method start, whereupon it looks
for a libvirtmod.XXXXXX API call. It checks if the XXXXX part
is present in the XML description we have, and if not, it
discards the entire method.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When reading/writing a global variable from inside a method
it must be declared as a global, otherwise a local variable
by the same name will be used.
Special case the virConnectListDomainsID method which is
bizarrely renamed for no obvious reason.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Older libvirt has files named 'events' and 'virterror'
rather than 'virevent' and 'virerror'. This is visible
in the API XML files. We must look for both names to
ensure we don't lose generation of methods with older
versions of libvirt.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The virNodeGetSecurityModel, virDomainGetSecurityLabel and
virDomainGetSecurityLabelList methods were disabled in the
python binding for inexplicable reasons.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The python code generator tries to figure out what class a
method should be in by looking at the list of arguments for
any which are object types. Unfortunately missing break
statements meant that methods which have multiple object
arguments (eg migrate as a virDomainPtr followed by a
virConnectPtr) got added to multiple classes.
The following incorrect methods are removed by this change
virStream.download (dup of virStorageVol.download)
virStream.screenshot (dup of virDomain.screenshot)
virStream.upload (dup of virStorageVol.upload)
virConnect.migrate (dup of virDomain.migrate)
virConnect.migrate2 (dup of virDomain.migrate2)
virConnect.migrate3 (dup of virDomain.migrate3)
virConnect.migrateToURI3 (dup of virDomain.migrateToURI3)
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The reference counting API is for internal use only. Attempts
to use it from python application code will cause havoc.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Entries in the -overrides.xml files should only be recorded
if the API also exists in the main API XML file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Since we don't always want to build all the modules, and there might be
more modules added in the future but we want to retain backwards
compatibility with older libvirts, change generator.py to be called once
per module instead of with all modules at once.
Commit de51dc9c9aed0e615c8b301cccb89f4859324eb0 primarily added
virConnectGetCPUModelNames as libvirt.getCPUModelNames(conn, arch)
instead of libvirt.virConnect.getCPUModelNames(arch) so revert the code
that does the former while leaving the code that does the later.
This is the rest of the patch that was ACK'd by Dan but I committed only
the partial patch in 6a8b8ae.
Commit de51dc9c9aed0e615c8b301cccb89f4859324eb0 primarily added
virConnectGetCPUModelNames as libvirt.getCPUModelNames(conn, arch)
instead of libvirt.virConnect.getCPUModelNames(arch) so revert the code
that does the former while leaving the code that does the later.
'const fooPtr' is the same as 'foo * const' (the pointer won't
change, but it's contents can). But in general, if an interface
is trying to be const-correct, it should be using 'const foo *'
(the pointer is to data that can't be changed).
Fix up offenders in the python bindings.
* python/generator.py (py_types): Drop useless conversions.
* python/libvirt-override.c (getPyVirTypedParameter)
(setPyVirTypedParameter): Use intended type.
Signed-off-by: Eric Blake <eblake@redhat.com>
The new function virConnectGetCPUModelNames allows to retrieve the list
of CPU models known by the hypervisor for a specific architecture.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Consistently use "is" or "is not" to compare variables to None,
because doing so is preferrable, as per PEP 8
(http://www.python.org/dev/peps/pep-0008/#programming-recommendations):
> Comparisons to singletons like None should always be done with is or
> is not, never the equality operators.
With container based virt, it is useful to be able to pass
pre-opened file descriptors to the container init process.
This allows for containers to be auto-activated from incoming
socket connections, passing the active socket into the container.
To do this, introduce a pair of new APIs, virDomainCreateXMLWithFiles
and virDomainCreateWithFiles, which accept an array of file
descriptors. For the LXC driver, UNIX file descriptor passing
will be used to send them to libvirtd, which will them pass
them down to libvirt_lxc, which will then pass them to the container
init process.
This will only be implemented for LXC right now, but the design
is generic enough it could work with other hypervisors, hence
I suggest adding this to libvirt.so, rather than libvirt-lxc.so
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This patch introduces two new APIs virDomainMigrate3 and
virDomainMigrateToURI3 that may be used in place of their older
variants. These new APIs take optional migration parameters (such as
bandwidth, domain XML, ...) in an array of virTypedParameters, which
makes adding new parameters easier as there's no need to introduce new
APIs whenever a new migration parameter needs to be added. Both APIs are
backward compatible and will automatically use older migration calls in
case the new calls are not supported as long as the typed parameters
array does not contain any parameter which was not supported by the
older calls.
When prefixing with string (optional) or optional in the description
of arguments to libvirt C APIs, in python, these arguments will be
set as optional arugments, for example:
* virDomainSaveFlags:
* @domain: a domain object
* @to: path for the output file
* @dxml: (optional) XML config for adjusting guest xml used on restore
* @flags: bitwise-OR of virDomainSaveRestoreFlags
the corresponding python APIs is
restoreFlags(self, frm, dxml=None, flags=0)
The following python APIs are changed to:
blockCommit(self, disk, base, top, bandwidth=0, flags=0)
blockPull(self, disk, bandwidth=0, flags=0)
blockRebase(self, disk, base, bandwidth=0, flags=0)
migrate(self, dconn, flags=0, dname=None, uri=None, bandwidth=0)
migrate2(self, dconn, dxml=None, flags=0, dname=None, uri=None, bandwidth=0)
migrateToURI(self, duri, flags=0, dname=None, bandwidth=0)
migrateToURI2(self, dconnuri=None, miguri=None, dxml=None, flags=0, \
dname=None, bandwidth=0)
saveFlags(self, to, dxml=None, flags=0)
migrate(self, domain, flags=0, dname=None, uri=None, bandwidth=0)
migrate2(self, domain, dxml=None, flags=0, dname=None, uri=None, bandwidth=0)
restoreFlags(self, frm, dxml=None, flags=0)
