ThreadWeaver

inconstructionstate.cpp
1/* -*- C++ -*-
2 This file implements the InConstructionState class.
3
4 SPDX-FileCopyrightText: 2005-2013 Mirko Boehm <mirko@kde.org>
5
6 SPDX-License-Identifier: LGPL-2.0-or-later
7
8 $Id: InConstructionState.cpp 30 2005-08-16 16:16:04Z mirko $
9*/
10
11#include "inconstructionstate.h"
12
13#include "threadweaver.h"
14#include "weaver.h"
15
16namespace ThreadWeaver
17{
18InConstructionState::InConstructionState(QueueSignals *weaver)
19 : WeaverImplState(weaver)
20{
21}
22
23void InConstructionState::suspend()
24{
25 // this request is not handled in InConstruction state
26}
27
28void InConstructionState::resume()
29{
30 // this request is not handled in InConstruction state
31}
32
33JobPointer InConstructionState::applyForWork(Thread *th, bool wasBusy)
34{
35 Q_ASSERT(wasBusy == false);
36 // As long as we are in the construction state, no jobs will be given
37 // to the worker threads. The threads will be suspended. They will
38 // return from the blocked state when jobs are queued. By then, we
39 // should not be in InConstruction state anymore, and we hand the job
40 // application over to the then active state.
41 while (weaver()->state()->stateId() == InConstruction) {
42 weaver()->waitForAvailableJob(th);
43 }
44 return weaver()->applyForWork(th, wasBusy);
45}
46
47StateId InConstructionState::stateId() const
48{
49 return InConstruction;
50}
51
52}
Thread represents a worker thread in a Queue's inventory.
Definition thread.h:28
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