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1 /*
2  * Copyright 2009, The Android Open Source Project
3  * Copyright (C) 2008 Google Inc. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #ifndef PluginTimer_h
28 #define PluginTimer_h
29 
30 #include "FastAllocBase.h"
31 #include "RefCounted.h"
32 #include "Timer.h"
33 #include "npapi.h"
34 
35 namespace WebCore {
36 
37     class PluginTimerList;
38 
39     class PluginTimer : public TimerBase, public RefCounted<PluginTimer> {
40         WTF_MAKE_FAST_ALLOCATED;
41     public:
42         PluginTimer(PluginTimer** list, NPP instance, bool repeat,
43                     void (*proc)(NPP npp, uint32_t timerID));
44         virtual ~PluginTimer();
45 
timerID()46         uint32_t timerID() const { return m_timerID; }
47 
unschedule()48         void unschedule() { m_unscheduled = true; }
49 
50         static PluginTimer* Find(PluginTimer* list, uint32_t timerID);
51 
52     private:
53         // override from TimerBase
54         virtual void fired();
55 
next()56         PluginTimer* next() const { return m_next; }
57         friend class PluginTimerList;
58 
59         PluginTimer**   m_list;
60         PluginTimer*    m_prev;
61         PluginTimer*    m_next;
62         NPP             m_instance;
63         void            (*m_timerFunc)(NPP, uint32_t);
64         uint32_t          m_timerID;
65         bool            m_repeat;
66         bool            m_unscheduled;
67     };
68 
69     class PluginTimerList {
70     public:
PluginTimerList()71         PluginTimerList() : m_list(0) {}
72         ~PluginTimerList();
73 
74         uint32_t schedule(NPP instance, uint32_t interval, bool repeat,
75                         void (*proc)(NPP npp, uint32_t timerID));
76         void unschedule(NPP instance, uint32_t timerID);
77 
78     private:
79         PluginTimer* m_list;
80     };
81 
82 } // namespace WebCore
83 
84 #endif
85