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      1 /*
      2  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
      3  * Copyright (C) 2009 Company 100, Inc.
      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  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 #include "config.h"
     28 #include "SharedTimer.h"
     29 
     30 #include <AEEAppGen.h>
     31 #include <AEEStdLib.h>
     32 
     33 #include <wtf/CurrentTime.h>
     34 
     35 namespace WebCore {
     36 
     37 static void (*sharedTimerFiredFunction)();
     38 
     39 static AEECallback sharedTimerCallback;
     40 
     41 static void invokeCallback(void*)
     42 {
     43     sharedTimerFiredFunction();
     44 }
     45 
     46 void setSharedTimerFiredFunction(void (*f)())
     47 {
     48     sharedTimerFiredFunction = f;
     49 }
     50 
     51 void setSharedTimerFireTime(double fireTime)
     52 {
     53     ASSERT(sharedTimerFiredFunction);
     54 
     55     CALLBACK_Cancel(&sharedTimerCallback);
     56 
     57     double interval = fireTime - currentTime();
     58     int intervalInMS;
     59 
     60     if (interval < 0)
     61         intervalInMS = 0;
     62     else {
     63         interval *= 1000;
     64         intervalInMS = static_cast<int>(interval);
     65     }
     66 
     67     sharedTimerCallback.pfnCancel = 0;
     68     sharedTimerCallback.pfnNotify = invokeCallback;
     69     sharedTimerCallback.pNotifyData = 0;
     70 
     71     IShell* shell = reinterpret_cast<AEEApplet*>(GETAPPINSTANCE())->m_pIShell;
     72     ISHELL_SetTimerEx(shell, intervalInMS, &sharedTimerCallback);
     73 }
     74 
     75 void stopSharedTimer()
     76 {
     77     CALLBACK_Cancel(&sharedTimerCallback);
     78 }
     79 
     80 }
     81