102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
#include <kernel/object.h>
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#include <kernel/pd.h>
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#include <kernel/kernel.h>
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#include <util/construct_at.h>
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using namespace Kernel;
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/************
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** Object **
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************/
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Object::~Object()
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{
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for (Object_identity * oi = first(); oi; oi = first())
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oi->invalidate();
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}
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/*********************
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** Object_identity **
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*********************/
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void Object_identity::invalidate()
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{
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for (Object_identity_reference * oir = first(); oir; oir = first())
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oir->invalidate();
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_object.remove(this);
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}
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Object_identity::Object_identity(Object & object)
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: _object(object) { _object.insert(this); }
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Object_identity::~Object_identity() { invalidate(); }
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/*******************************
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** Object_identity_reference **
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*******************************/
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Object_identity_reference *
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Object_identity_reference::find(Pd * pd)
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{
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if (!_identity) return nullptr;
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for (Object_identity_reference * oir = _identity->first();
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oir; oir = oir->next())
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if (pd == &(oir->_pd)) return oir;
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return nullptr;
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}
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Object_identity_reference *
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Object_identity_reference::find(capid_t capid)
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{
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using Avl_node_base = Genode::Avl_node<Object_identity_reference>;
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if (capid == _capid) return this;
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Object_identity_reference * subtree =
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Avl_node_base::child(capid > _capid);
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return (subtree) ? subtree->find(capid) : nullptr;
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}
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Object_identity_reference * Object_identity_reference::factory(void * dst,
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Pd & pd)
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{
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using namespace Genode;
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return !_identity ?
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nullptr : construct_at<Object_identity_reference>(dst, _identity, pd);
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}
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void Object_identity_reference::invalidate() {
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if (_identity) _identity->remove(this);
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_identity = nullptr;
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}
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Object_identity_reference::Object_identity_reference(Object_identity *oi,
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Pd &pd)
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: _capid(pd.capid_alloc().alloc()), _identity(oi), _pd(pd), _in_utcbs(0)
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{
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if (_identity) _identity->insert(this);
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_pd.cap_tree().insert(this);
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}
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Object_identity_reference::~Object_identity_reference()
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{
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invalidate();
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_pd.cap_tree().remove(this);
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_pd.capid_alloc().free(_capid);
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}
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Object_identity_reference * Object_identity_reference_tree::find(capid_t id) {
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return (first()) ? first()->find(id) : nullptr; }
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