releasenotes.htm

symbian 多线程例子,可用于S60第二,第三版

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<div class=Section1>

<p class=MsoNormal>A<a name="OLE_LINK4"></a><a name="OLE_LINK3"><span
style='mso-bookmark:OLE_LINK4'>bout S60 Platform: Multiple Threads Example v1.1</span></a></p>

<p class=MsoNormal>--------------------</p>

<p class=MsoNormal>The Thread Example is an example program that demonstrates
thread usage and </p>

<p class=MsoNormal>synchronization. The example is based on the document Symbian
OS: Threads Programming. </p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>Prerequisites</p>

<p class=MsoNormal>------------</p>

<p class=MsoNormal>- Active Objects</p>

<p class=MsoNormal>- Multitasking</p>

<p class=MsoNormal>- Symbian OS key concepts</p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>Running the Thread Example</p>

<p class=MsoNormal>----------------------</p>

<p class=MsoNormal>Open the options menu. Select &quot;Start threads.&quot;</p>

<p class=MsoNormal>Now you should see three animations running. </p>

<p class=MsoNormal>Open the options menu again and start killing threads.</p>

<p class=MsoNormal>After killing a thread, the thread should reactivate in a </p>

<p class=MsoNormal>few seconds, that is, the animation should reappear.</p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>All threads are counting while they are running.</p>

<p class=MsoNormal>Thread2 and thread3 are synchronized and they increment the
same</p>

<p class=MsoNormal>TInt counter. Thread1 increments a separate counter by
itself,</p>

<p class=MsoNormal>thus no synchronization is required. Threads print the value</p>

<p class=MsoNormal>of the counter on the screen when they have been killed.</p>

<p class=MsoNormal>The user can be sure that the thread is running if the value</p>

<p class=MsoNormal>of the counter is bigger than zero. The counter of Thread1
is reset</p>

<p class=MsoNormal>when thread1 is killed. The counter of Thread2 &amp; thread3
is reset</p>

<p class=MsoNormal>when thread2 or thread3 has been killed.</p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>Installation instructions</p>

<p class=MsoNormal>-----------------------</p>

<p class=MsoNormal>-----------------------</p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>DEVICE</p>

<p class=MsoNormal>------------------</p>

<p class=MsoNormal>S60 2nd Edition SDKs:</p>

<p class=MsoNormal><span style='mso-spacerun:yes'>牋