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base: redesign object pool using lambda interface

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Instead of returning pointers to locked objects via a lookup function,
the new object pool implementation restricts object access to
functors resp. lambda expressions that are applied to the objects
within the pool itself.

Fix #884
Fix #1658
This commit is contained in:
Stefan Kalkowski
2015-08-10 13:34:16 +02:00
committed by Christian Helmuth
parent 555835c95b
commit 458b4d6fc4
66 changed files with 1616 additions and 1709 deletions
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27
repos/base/include/root/component.h
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@@ -248,26 +248,29 @@ class Genode::Root_component : public Rpc_object<Typed_root<SESSION_TYPE> >,
{
if (!args.is_valid_string()) throw Root::Invalid_args();
typedef typename Object_pool<SESSION_TYPE>::Guard Object_guard;
Object_guard s(_ep->lookup_and_lock(session));
if (!s) return;
_ep->apply(session, [&] (SESSION_TYPE *s) {
if (!s) return;
_upgrade_session(s, args.string());
_upgrade_session(s, args.string());
});
}
void close(Session_capability session) override
void close(Session_capability session_cap) override
{
SESSION_TYPE * s =
dynamic_cast<SESSION_TYPE *>(_ep->lookup_and_lock(session));
if (!s) return;
SESSION_TYPE * session;
/* let the entry point forget the session object */
_ep->dissolve(s);
_ep->apply(session_cap, [&] (SESSION_TYPE *s) {
session = s;
_destroy_session(s);
/* let the entry point forget the session object */
if (session) _ep->dissolve(session);
});
if (!session) return;
_destroy_session(session);
POLICY::release();
return;
}
};