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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add wrappers that let you get/set properties using normal C data types.
Reviewed-by: Anthony Liguori <anthony@aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Move the creation of QmpInputVisitor and QmpOutputVisitor from qmp.c
to qom/object.c, since it's the only practical way to access object
properties.
Keep this isolated such that it's easy to remove. At some point, we need
to remove all usage of QObject in the tree and replace it with GVariant.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The interface loop can be performed only on the parent object. It
does not need to be done on each interface. Similarly, we can
simplify the code by switching early from the implementation
object to the parent object.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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v1 -> v2
- Add license (Paolo)
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Now we have the following behavior:
1) object_new() returns an object with ref = 1
2) object_initialize() does not increase the reference count (ref may be 0).
3) object_deref() will finalize the object when ref = 0. it does not free the
memory associated with the object.
4) both link and child properties correctly set the reference count.
The expected usage is the following:
1) child devices should generally be created via object_initialize() using
memory from the parent device. Adding the object as a child property will
take ownership of the object and tie the child's life cycle to the parent.
2) If a child device is created via qdev_create() or some other form of
object_new(), there must be an object_delete() call in the parent device's
finalize function.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Links had limited utility before as they only allowed a concrete type to be
specified. Now we can support abstract types and interfaces which means it's
now possible to have a link<PCIDevice>.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is mostly code movement although not entirely. This makes properties part
of the Object base class which means that we can now start using Object in a
meaningful way outside of qdev.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Reported-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This class provides the main building block for QEMU Object Model and is
extensively documented in the header file. It is largely inspired by GObject.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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v1 -> v2
- remove printf() in type registration
- fix typo in comment (Paolo)
- make Interface private
- move object into a new directory and move header into include/qemu/
- don't make object.h depend on qemu-common.h
- remove Type and replace it with TypeImpl * (Paolo)
- use hash table to store types (Paolo)
- aggressively cache parent type (Paolo)
- make a type_register and use it with interfaces (Paolo)
- fix interface cast comment (Paolo)
- add a few more functions required in later series
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