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QTimer make traitement out of for loop ?

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #2

    Hi,

    Are you asking to block the code in that if block until the timer times out and the lambda is finished ?

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    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

    I 1 Reply Last reply
    0
    • I imene

      Hi,
      what i have to do to keep the traitement inside qtimer tirning without passing to the next if condition here ?

      for(..)
      {
      if(..){ 
      QTimer::singleShot(6000, [=](){
                          qDebug()<<"Timer on do something after 6 second...";
      
      
                     // i want to set a time out condition here
      
                     });//timer ends here
      }//end if
      else
      {..}
      }//end for
      
      JonBJ Offline
      JonBJ Offline
      JonB
      wrote on last edited by
      #3

      @imene
      Please don't post multiple questions for the same thing, your https://forum.qt.io/topic/138912/how-can-i-set-time-out-condition-in-the-timer, it's not fair on the duplicated effort you may get people to do.

      I 1 Reply Last reply
      0
      • SGaistS SGaist

        Hi,

        Are you asking to block the code in that if block until the timer times out and the lambda is finished ?

        I Offline
        I Offline
        imene
        wrote on last edited by
        #4

        @SGaist yes exactelly

        1 Reply Last reply
        0
        • JonBJ JonB

          @imene
          Please don't post multiple questions for the same thing, your https://forum.qt.io/topic/138912/how-can-i-set-time-out-condition-in-the-timer, it's not fair on the duplicated effort you may get people to do.

          I Offline
          I Offline
          imene
          wrote on last edited by imene
          #5

          @JonB Sorry i just i wanted to make it more clear here i will delete the other topic

          JonBJ 1 Reply Last reply
          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #6

            When you want to make things clearer, you can simply edit your original thread message and add more information with a note stating what you added.

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
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            • I imene

              @JonB Sorry i just i wanted to make it more clear here i will delete the other topic

              JonBJ Offline
              JonBJ Offline
              JonB
              wrote on last edited by
              #7

              @imene said in QTimer make traitement out of for loop ?:

              i will delete the other topic

              And please do not do this! You had asked different questions there first, people had taken time to respond, and now you have deleted the whole topic. Once people at least respond in a topic please don't delete it; you can always mark it as Solved and raise a different topic for a different question.

              1 Reply Last reply
              1
              • I Offline
                I Offline
                imene
                wrote on last edited by imene
                #8

                Okay i restored it, i'm new at this Forum and i was little bit confused how to make a clear topic.
                https://forum.qt.io/topic/138912/how-can-i-set-time-out-condition-in-the-timer
                i'm sorry..

                JonBJ 1 Reply Last reply
                1
                • I imene

                  Okay i restored it, i'm new at this Forum and i was little bit confused how to make a clear topic.
                  https://forum.qt.io/topic/138912/how-can-i-set-time-out-condition-in-the-timer
                  i'm sorry..

                  JonBJ Offline
                  JonBJ Offline
                  JonB
                  wrote on last edited by
                  #9

                  @imene
                  Not a problem :) Actually it looks like I remembered wrong and people had not started responding in that thread!

                  1 Reply Last reply
                  1
                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #10

                    Based on you other thread, I would say that you should refactor your payload processing logic.

                    Rather than I tight loop that you are going to block use for example invokeMethod when you are done with the processing of the current payload. That way, for that particular case, you will call invokeMethod as the last thing in you lambda to continue the processing. Your loop will otherwise continue.

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                    I 1 Reply Last reply
                    1
                    • SGaistS SGaist

                      Based on you other thread, I would say that you should refactor your payload processing logic.

                      Rather than I tight loop that you are going to block use for example invokeMethod when you are done with the processing of the current payload. That way, for that particular case, you will call invokeMethod as the last thing in you lambda to continue the processing. Your loop will otherwise continue.

                      I Offline
                      I Offline
                      imene
                      wrote on last edited by
                      #11

                      @SGaist good like this method preposed by @mpergand here (https://forum.qt.io/topic/138912/how-can-i-set-time-out-condition-in-the-timer-duplicated-https-forum-qt-io-topic-138913-qtimer-make-traitement-out-of-for-loop/3)

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        That's one way of implementing it.

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                        0
                        • I Offline
                          I Offline
                          imene
                          wrote on last edited by imene
                          #13

                          @SGaist is there a way more easy than that ? with another type of timer ?
                          can i use this signal void QTimer::timeout()?

                          M 1 Reply Last reply
                          0
                          • I imene

                            @SGaist is there a way more easy than that ? with another type of timer ?
                            can i use this signal void QTimer::timeout()?

                            M Offline
                            M Offline
                            mpergand
                            wrote on last edited by mpergand
                            #14

                            @imene
                            For your long delay, you can use lambda as well,
                            Although I don't see any real benefit with it.

                            1 Reply Last reply
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                            • I Offline
                              I Offline
                              imene
                              wrote on last edited by
                              #15

                              @mpergand
                              What do you mean with lamba ?

                              jsulmJ 1 Reply Last reply
                              0
                              • I imene

                                @mpergand
                                What do you mean with lamba ?

                                jsulmJ Offline
                                jsulmJ Offline
                                jsulm
                                Lifetime Qt Champion
                                wrote on last edited by
                                #16

                                @imene C++ lambda functions: https://en.cppreference.com/w/cpp/language/lambda

                                https://forum.qt.io/topic/113070/qt-code-of-conduct

                                1 Reply Last reply
                                1
                                • I Offline
                                  I Offline
                                  imene
                                  wrote on last edited by
                                  #17

                                  QTimer::singleShot :This static function calls a slot after a given time interval; in my case i want the code to make the traitement inside QTimer::singleShot before it pass to make the next if condition .

                                  Christian EhrlicherC 1 Reply Last reply
                                  0
                                  • I imene

                                    QTimer::singleShot :This static function calls a slot after a given time interval; in my case i want the code to make the traitement inside QTimer::singleShot before it pass to make the next if condition .

                                    Christian EhrlicherC Offline
                                    Christian EhrlicherC Offline
                                    Christian Ehrlicher
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #18

                                    @imene said in QTimer make traitement out of for loop ?:

                                    to make the traitement inside QTimer::singleShot before it pass to make the next if condition .

                                    Let the QTimer::singleShot() fire and check for your codition inside the slot.

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                                    • I Offline
                                      I Offline
                                      imene
                                      wrote on last edited by
                                      #19

                                      @Christian-Ehrlicher how ?

                                      Christian EhrlicherC 1 Reply Last reply
                                      0
                                      • I imene

                                        @Christian-Ehrlicher how ?

                                        Christian EhrlicherC Offline
                                        Christian EhrlicherC Offline
                                        Christian Ehrlicher
                                        Lifetime Qt Champion
                                        wrote on last edited by Christian Ehrlicher
                                        #20

                                        @imene said in QTimer make traitement out of for loop ?:

                                        how ?

                                        if (yourCoditionIsMet) {
                                          doSomethingYouWant()
                                        }
                                        

                                        maybe?

                                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                                        Visit the Qt Academy at https://academy.qt.io/catalog

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                                        • I Offline
                                          I Offline
                                          imene
                                          wrote on last edited by
                                          #21

                                          @Christian-Ehrlicher
                                          my condition is to wait for QTimer::singleShot() to be executed

                                          Christian EhrlicherC 1 Reply Last reply
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