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  1. 19 11月, 2013 1 次提交
  3. 14 10月, 2013 1 次提交
  5. 31 8月, 2013 2 次提交
  7. 17 8月, 2013 1 次提交
  9. 10 7月, 2013 1 次提交
  11. 04 7月, 2013 1 次提交
  13. 22 5月, 2013 1 次提交
  15. 14 5月, 2013 1 次提交
    • A
      qom: aggressively optimize qom casting · 03587328
      由 Anthony Liguori 提交于 
      This patch adds a small typename cache to ObjectClass.  This allows
caching positive casts within each ObjectClass.  Benchmarking a
PPC workload provided by Aurelien, this patch eliminates every
single g_hash_table_lookup() happening during the benchmark (which
was about 2 million per-second).

With this patch applied, I get exactly the same performance (within
the margin of error) as with --disable-qom-cast-debug.

N.B. it's safe to cache typenames only from the _assert() macros
because they are always called with string literals.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      03587328
  17. 13 5月, 2013 5 次提交
  19. 30 4月, 2013 2 次提交
  21. 17 4月, 2013 1 次提交
  23. 27 3月, 2013 1 次提交
  25. 26 3月, 2013 1 次提交
  27. 22 2月, 2013 2 次提交
    • P
      qom/object.c: Allow itf cast with num_itfs = 0 · 00e2ceae
      由 Peter Crosthwaite 提交于 
      num_interfaces only tells you how many interfaces the concrete child class has
(as defined in the TypeInfo). This means if you have a child class which defines
no interfaces of its own, but its parent has interfaces you cannot cast to those
parent interfaces.

Fixed changing the guard to check the class->interfaces list instead (which is
a complete flattened list of implemented interfaces).
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: a8c2db3b9b1f3c4bb81aca352b69e33260f36545.1361246206.git.peter.crosthwaite@xilinx.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      00e2ceae
    • P
      qom/object.c: Reset interface list on inheritance · 3e407de4
      由 Peter Crosthwaite 提交于 
      The QOM framework will attempt the recreate a classes interface list from
scratch for each class. This means that a child class should zero out the
list of interfaces when cloned from the parent class.

Currently the list is memcpy()d from the parent to the child. As the interface
list is just a pointer to a list, this means the parent and child will share
the same list of interfaces. When the child inits, it will append its own
interfaces to the parents list. This is incorrect as the parent should not pick
up its childs interfaces.

This actually causes an infinite loop at class init time, as the child will
iterate through the parent interface list adding each itf to its own list(in
type_initialize()). As the list is (erroneously) shared, the new interface
instances for the child are appended to the parent, and the iterator never hits
the tail and loops forever.
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Message-id: 1f58d2b629d82865dbb2fd5ba8445854049c4382.1361246206.git.peter.crosthwaite@xilinx.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      3e407de4
  29. 02 2月, 2013 2 次提交
  31. 28 1月, 2013 1 次提交
  33. 15 1月, 2013 1 次提交
  35. 19 12月, 2012 3 次提交
  37. 27 11月, 2012 4 次提交
  39. 26 11月, 2012 1 次提交
  41. 16 11月, 2012 1 次提交
  43. 24 8月, 2012 1 次提交
    • P
      qom: object_delete should unparent the object first · da5a44e8
      由 Paolo Bonzini 提交于 
      object_deinit is only called when the reference count goes to zero,
and yet tries to do an object_unparent.  Now, object_unparent
either does nothing or it will decrease the reference count.
Because we know the reference count is zero, the object_unparent
call in object_deinit is useless.

Instead, we need to disconnect the object from its parent just
before we remove the last reference apart from the parent's.  This
happens in object_delete.  Once we do this, all calls to
object_unparent peppered through QEMU can go away.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      da5a44e8
  45. 13 8月, 2012 1 次提交
    • A
      qom: Reimplement Interfaces · 33e95c63
      由 Anthony Liguori 提交于 
      The current implementation of Interfaces is poorly designed.  Each interface
that an object implements ends up being an object that's tracked by the
implementing object.  There's all sorts of gymnastics to deal with casting
between these objects.

But an interface shouldn't be associated with an Object.  Interfaces are global
to a class.  This patch moves all Interface knowledge to ObjectClass eliminating
the relationship between Object and Interfaces.

Interfaces are now abstract (as they should be) but this is okay.  Interfaces
essentially act as additional parents for the classes and are treated as such.

With this new implementation, we should fully support derived interfaces
including reimplementing an inherited interface.

PC: Rebased against qom-next merge Jun-2012.

PC: Removed replication of cast logic for interfaces, i.e. there is only
one cast function - object_dynamic_cast() (and object_dynamic_cast_assert())
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>
      33e95c63
  47. 18 6月, 2012 4 次提交