Introduce virDomainMigrateGetCompressionCache and
virDomainMigrateSetCompressionCache APIs.

This is an extensible version of virDomainGetJobInfo.

This makes sure we don't regress to old style classes

It's Python, not C

When running sanitytest.py we should not rely on libvirt library
installed on the system. And since we generate a nice wrapper called
"run" that sets both PYTHON_PATH and LD_LIBRARY_PATH, we should just use
it rather than trying to duplicate it in the Makefile.

The previous change to the generator, changed too much - only
the functions are in 'virerror.c', the constants remained in
'virerror.h' which could not be renamed for API compat reasons.

Add a test case to sanity check the generated python bindings
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Without these two string changes in generator.py, the
virGetLastError wrapper does not get created in
/usr/share/pyshared/libvirt.py.  Noticed when running
tests with virt-install.
Signed-off-by: NSerge Hallyn <serge.hallyn@ubuntu.com>

https://bugzilla.redhat.com/show_bug.cgi?id=895882

virDomainSnapshot.getDomain() and virDomainSnapshot.getConnect()
wrappers around virDomainSnapshotGet{Domain,Connect} were not supposed
to be ever implemented. The class should contain proper domain() and
connect() accessors that fetch python objects stored internally within
the class. While domain() was already provided, connect() was missing.

This patch adds connect() method to virDomainSnapshot class and
reimplements getDomain() and getConnect() methods as aliases to domain()
and connect() for backward compatibility.

As of python >= 2.2, it is recommended that all objects inherit
from the 'object' base class. We already require python >= 2.3
for libvirt for thread macro support, so we should follow this
best practice.

See also

  http://stackoverflow.com/questions/4015417/python-class-inherits-objectSigned-off-by: NDaniel P. Berrange <berrange@redhat.com>

The function is just a renamed public version of former
virTypedParameterArrayClear.

Working with virTypedParameters in clients written in C is ugly and
requires all clients to duplicate the same code. This set of APIs makes
this code for manipulating with virTypedParameters integral part of
libvirt so that all clients may benefit from it.

Mark virDomainLxcEnterNamespace as skipped in python binding
and remove reference to lxcDomainOpenNamespace which doesn't
arrive until a later patch

This patch introduces support for LXC specific public APIs. In
common with what was done for QEMU, this creates a libvirt_lxc.so
library and libvirt/libvirt-lxc.h header file.

The actual APIs are

  int virDomainLxcOpenNamespace(virDomainPtr domain,
                                int **fdlist,
                                unsigned int flags);

  int virDomainLxcEnterNamespace(virDomainPtr domain,
                                 unsigned int nfdlist,
                                 int *fdlist,
                                 unsigned int *noldfdlist,
                                 int **oldfdlist,
                                 unsigned int flags);

which provide a way to use the setns() system call to move the
calling process into the container's namespace. It is not
practical to write in a generically applicable manner. The
nearest that we could get to such an API would be an API which
allows to pass a command + argv to be executed inside a
container. Even if we had such a generic API, this LXC specific
API is still useful, because it allows the caller to maintain
the current process context, in particular any I/O streams they
have open.

NB the virDomainLxcEnterNamespace() API is special in that it
runs client side, so does not involve the internal driver API.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

With our recent renames under src/util/* we forgot to adapt
python wrapper code generator. This results in some methods being
not exposed:

$ python examples/domain-events/events-python/event-test.py
Using uri:qemu:///system
Traceback (most recent call last):
  File "examples/domain-events/events-python/event-test.py", line 585, in <module>
    main()
  File "examples/domain-events/events-python/event-test.py", line 543, in main
    virEventLoopPureStart()
  File "examples/domain-events/events-python/event-test.py", line 416, in virEventLoopPureStart
    virEventLoopPureRegister()
  File "examples/domain-events/events-python/event-test.py", line 397, in virEventLoopPureRegister
    libvirt.virEventRegisterImpl(virEventAddHandleImpl,
AttributeError: 'module' object has no attribute 'virEventRegisterImpl'

Introduced by commit 1465876a, pushed under build-breaker &&
trivial rule.

Add code in the python binding to cope with the new APIs
virConnectRegisterCloseCallback and
virConnectUnregisterCloseCallback. Also demonstrate their
use in the python domain events demo
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Modified the places where virNodeGetInfo was used for the purpose
of obtaining the maximum node CPU number. Transparently falling
back to virNodeGetInfo in case of failure.
Wrote a utility function getPyNodeCPUCount for that purpose.
Signed-off-by: NViktor Mihajlovski <mihajlov@linux.vnet.ibm.com>

The libvirt coding standard is to use 'function(...args...)'
instead of 'function (...args...)'. A non-trivial number of
places did not follow this rule and are fixed in this patch.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Noticed during the review of the previous patch.

* python/libvirt-override.c: Use space between 'if ('.

Added a method getCPUMap to virConnect.
It can be used as follows:

import libvirt
import sys
import os

conn = libvirt.openReadOnly(None)
if conn == None:
    print 'Failed to open connection to the hypervisor'
    sys.exit(1)

try:
    (cpus, cpumap, online) = conn.getCPUMap(0)
except:
    print 'Failed to extract the node cpu map information'
    sys.exit(1)

print 'CPUs total %d, online %d' % (cpus, online)
print 'CPU map %s' % str(cpumap)

del conn
print "OK"

sys.exit(0)
Signed-off-by: NViktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Adding a new API to obtain information about the
host node's present, online and offline CPUs.

int virNodeGetCPUMap(virConnectPtr conn,
                     unsigned char **cpumap,
                     unsigned int *online,
                     unsigned int flags);

The function will return the number of CPUs present on the host
or -1 on failure;
If cpumap is non-NULL virNodeGetCPUMap will allocate an array
containing a bit map representation of the online CPUs. It's
the callers responsibility to deallocate cpumap using free().
If online is non-NULL, the variable pointed to will contain
the number of online host node CPUs.
The variable flags has been added to support future extensions
and must be set to 0.

Extend the driver structure by nodeGetCPUMap entry in support of the
new API virNodeGetCPUMap.
Added implementation of virNodeGetCPUMap to libvirt.c
Signed-off-by: NViktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

This patch adds support for SUSPEND_DISK event; both lifecycle and
separated.  The support is added for QEMU, machines are changed to
PMSUSPENDED, but as QEMU sends SHUTDOWN afterwards, the state changes
to shut-off.  This and much more needs to be done in order for libvirt
to work with transient devices, wake-ups etc.  This patch is not
aiming for that functionality.

This fixes problems on platforms where sizeof(long) != sizeof(long long)
like ia32.

libvirt_ulonglongUnwrap requires the integer type of python obj.
But libvirt_longlongUnwrap still could handle python obj of
Pyfloat_type which causes the float value to be rounded up
to an integer.

For example
 >>> dom.setSchedulerParameters({'vcpu_quota': 0.88})
 0
libvirt_longlongUnwrap treats 0.88 as a valid value 0

However
 >>> dom.setSchedulerParameters({'cpu_shares': 1000.22})
libvirt_ulonglongUnwrap will throw out an error
"TypeError: an integer is required"

The patch make this consistent.

libvirt_virDomainGetVcpus: add error handling, return -1 instead of None
libvirt_virDomainPinVcpu and libvirt_virDomainPinVcpuFlags:
  check the type of argument
  make use of libvirt_boolUnwrap

  Set bitmap according to these values which are contained in given
  argument of vcpu tuple and turn off these bit corresponding to
  missing vcpus in argument tuple

  The original way ignored the error info from PyTuple_GetItem
  if index is out of range.
  "IndexError: tuple index out of range"
  The error message will only be raised on next command in interactive mode.

The result is indeterminate for NULL argument to python
functions as follows. It's better to return negative value in
these situations.

PyObject_IsTrue will segfault if the argument is NULL
PyFloat_AsDouble(NULL) is -1.000000
PyLong_AsUnsignedLongLong(NULL) is 0.000000

* python/libvirt-override-api.xml: (Add document to describe
  the APIs).
* python/libvirt-override.c: (Implement the API wrappers manually)

* include/libvirt/libvirt.h.in: (Add macros for the param fields,
  declare the APIs).
* src/driver.h: (New methods for the driver struct)
* src/libvirt.c: (Implement the public APIs)
* src/libvirt_public.syms: (Export the public symbols)

The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.

python/libvirt-override-api.xml: Document

python/libvirt-override-virConnect.py: Implementation for listAllSecrets.

python/libvirt-override.c: Implementation for the wrapper.

This is to list the secret objects. Supports to filter the secrets
by its storage location, and whether it's private or not.

include/libvirt/libvirt.h.in: Declare enum virConnectListAllSecretFlags
                              and virConnectListAllSecrets.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllSecrets)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public

The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.

python/libvirt-override-api.xml: Document

python/libvirt-override-virConnect.py:
  * Implementation for listAllNWFilters.

python/libvirt-override.c: Implementation for the wrapper.

This is to list the network filter objects. No flags are supported

include/libvirt/libvirt.h.in: Declare enum virConnectListAllNWFilterFlags
                              and virConnectListAllNWFilters.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNWFilters)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public

The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.

python/libvirt-override-api.xml: Document

python/libvirt-override-virConnect.py:
  * Implementation for listAllNodeDevices.

python/libvirt-override.c: Implementation for the wrapper.

This is to list the node device objects, supports to filter the results
by capability types.

include/libvirt/libvirt.h.in: Declare enum virConnectListAllNodeDeviceFlags
                              and virConnectListAllNodeDevices.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNodeDevices)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public

The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.

python/libvirt-override-api.xml: Document

python/libvirt-override-virConnect.py:
  * New file, includes implementation of listAllInterfaces.

python/libvirt-override.c: Implementation for the wrapper.