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salhelper
futurequeue.hxx
Go to the documentation of this file.
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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* OpenOffice.org - a multi-platform office productivity suite
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*
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*
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************************************************************************/
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#ifndef _SALHELPER_FUTUREQUEUE_HXX_
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#define _SALHELPER_FUTUREQUEUE_HXX_
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#include <
sal/types.h
>
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#include <
rtl/ref.hxx
>
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#include <
osl/mutex.hxx
>
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#include <
salhelper/future.hxx
>
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#include <
salhelper/queue.hxx
>
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namespace
salhelper
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{
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//----------------------------------------------------------------------------
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#ifndef SALHELPER_COPYCTOR_API
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#define SALHELPER_COPYCTOR_API(C) C (const C&); C& operator= (const C&)
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#endif
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//----------------------------------------------------------------------------
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template
<
class
element_type>
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class
FutureQueue
:
protected
osl::Mutex
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{
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typedef
salhelper::Future<element_type>
future_type
;
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salhelper::QueueBase< rtl::Reference<future_type>
> m_aDelayed;
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salhelper::QueueBase< rtl::Reference<future_type>
> m_aPresent;
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SALHELPER_COPYCTOR_API(
FutureQueue<element_type>
);
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public
:
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inline
FutureQueue
()
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{}
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inline
~FutureQueue
()
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{}
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inline
void
put
(
const
element_type& element)
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{
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osl::MutexGuard
aGuard (*
this
);
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rtl::Reference<future_type>
xFuture (m_aDelayed.
get
());
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if
(!xFuture.is())
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{
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xFuture =
new
future_type
();
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m_aPresent.
put
(xFuture);
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}
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xFuture->set (element);
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}
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inline
rtl::Reference< salhelper::Future<element_type>
>
get
()
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{
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osl::MutexGuard
aGuard (*
this
);
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rtl::Reference<future_type>
xFuture (m_aPresent.
get
());
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if
(!xFuture.is())
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{
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xFuture =
new
future_type
();
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m_aDelayed.
put
(xFuture);
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}
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return
(xFuture);
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}
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};
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//----------------------------------------------------------------------------
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}
// namespace salhelper
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#endif
/* !_SALHELPER_FUTUREQUEUE */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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