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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=PT-BR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Oh.. .sorry..<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Change to (<b>struct</b> complex_task_parameters *)<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Use it as a member of structure dynamically allocated (by means of -> operator). Example:<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>printk(“foo = %s\n, p->foo);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>--Wendell.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>De:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Luca Cinquepalmi [mailto:cinquepalmi@planetek.it] <br><b>Enviada em:</b> segunda-feira, 17 de setembro de 201</span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>2 10:18<br><b>Para:</b> Wendell Pereira da Silva<br><b>Cc:</b> Mathew Benson; rtems-users@rtems.org<br><b>Assunto:</b> Re: RES: passing parameters to task<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'>Thank you Wendell, that's exactly what I mean. I have two question for you. <br><b><br>1)</b> In<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>rtems_task mytask(rtems_task_argument arg)</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>{</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> struct complex_task_parameters* p;</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> p = (complex_task_parameters *)arg;</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> while(true)</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> {</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> //use parameters in p</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> //....</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> }</span></b><o:p></o:p></p><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>}</span></b><br><br>I have a type error in <b><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>p = (complex_task_parameters *)arg; <br></span></b>Is complex_task_parameters type correct?<br><br><b>2)</b> How can I use parameters in while cycle? How can I refer to "foo" for example?<br><br> Thanks a lot again!<br><br> Luca<br><br><br>Il 17/09/2012 14.35, Wendell Pereira da Silva ha scritto:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Luca,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Mathew, please, may I post an example?</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>:-)</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>rtems_task mytask(rtems_task_argument arg);</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>(…)</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>struct complex_task_parameters</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>{</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> uint32_t ui; // first parameter...</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> uint16_t usi; // second parameter...</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> const char* foo; // another parameter...</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>}</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>rtems_task Init(rtems_task_argument arg)</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>{</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> rtems_id tid;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> struct complex_task_parameters* p_task_param;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> // allocate and initialize parameters</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> p_task_param = calloc(1, sizeof(*p_task_param));</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> p_task_param->ui = 1;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> p_task_param->usi = 0x1000;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> p_task_param->foo = "test...";</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> // create the task as usual</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> rtems_task_create(..., &tid);</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> // now pass the parameter to the task; </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> // use typecast to make the compiler happy.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> rtems_task_start(tid, mytask, (rtems_task_argument)p_task_param);</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>}</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>rtems_task mytask(rtems_task_argument arg)</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>{</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> struct complex_task_parameters* p;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> p = (complex_task_parameters *)arg;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> while(true)</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> {</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> //use parameters in p</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> //....</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'> }</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Courier New ;color:#1F497D","serif"'>}</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hope it helps.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>--Wendell.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>De:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> <a href="mailto:rtems-users-bounces@rtems.org">rtems-users-bounces@rtems.org</a> [<a href="mailto:rtems-users-bounces@rtems.org">mailto:rtems-users-bounces@rtems.org</a>] <b>Em nome de </b>Luca Cinquepalmi<br><b>Enviada em:</b> segunda-feira, 17 de setembro de 2012 07:20<br><b>Para:</b> Mathew Benson<br><b>Cc:</b> <a href="mailto:rtems-users@rtems.org">rtems-users@rtems.org</a><br><b>Assunto:</b> Re: passing parameters to task</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><div><p class=MsoNormal>I understand your suggestion... is there any example I could view?<br><br> Luca<br><br>Il 17/09/2012 12.18, Mathew Benson ha scritto:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>The same way you would with a POSIX pthread create call. Just malloc a struct with your multiple parameters, set your parameters, and pass the reference of your struct to the function. In your task entry point, cast the argument to a pointer to your struct and pull your parameters out.<br><br>Sent from my Amiga 1000<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>On Sep 17, 2012, at 4:35 AM, Luca Cinquepalmi <<a href="mailto:cinquepalmi@planetek.it">cinquepalmi@planetek.it</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal style='margin-bottom:12.0pt'>Hi all,<br>I would like to know if is it possible to pass more than one argument to a single task...<br>At the moment I only use this syntax when I define a task<br><br><b><span style='font-size:10.0pt'>rtems_task Test_task(rtems_task_argument unused)</span></b><br><br>How can I declare and define a more parameters dependent task?<br>Thanks a lot.<br><br> Luca<br><br><br><br><o:p></o:p></p></div></blockquote><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>_______________________________________________<br>rtems-users mailing list<br><a href="mailto:rtems-users@rtems.org">rtems-users@rtems.org</a><br><a href="http://www.rtems.org/mailman/listinfo/rtems-users">http://www.rtems.org/mailman/listinfo/rtems-users</a><o:p></o:p></p></div></blockquote></blockquote><p class=MsoNormal> <o:p></o:p></p></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>