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macOs Qprocess, calling a unix exec

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  • Pl45m4P Pl45m4

    @MatthewFelton said in macOs Qprocess, calling a unix exec:

    i notice on window running the avrdude.exe opens the command prompt whereas on mac it doesnt know what to do with the unix exec file avrdude

    One more thing besides the Qt / thread stuff:
    Does the stuff you are passing to QProcess work at all when putting it in a Mac Terminal?
    You've mentioned that Mac doesn't seem to find (or being able to run) the avrdude executable?!

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by
    #8

    @Pl45m4

    @MatthewFelton said in macOs Qprocess, calling a unix exec:

    i first made a console application that calls avrdude via QProcess. it works great on both mac and windows. now i have added a gui and the code itself is almost identical but for some reason it doesnt work.

    ?

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    • Pl45m4P Pl45m4

      @MatthewFelton said in macOs Qprocess, calling a unix exec:

      i notice on window running the avrdude.exe opens the command prompt whereas on mac it doesnt know what to do with the unix exec file avrdude

      One more thing besides the Qt / thread stuff:
      Does the stuff you are passing to QProcess work at all when putting it in a Mac Terminal?
      You've mentioned that Mac doesn't seem to find (or being able to run) the avrdude executable?!

      Pl45m4P Offline
      Pl45m4P Offline
      Pl45m4
      wrote on last edited by
      #9

      @MatthewFelton said in macOs Qprocess, calling a unix exec:

      i notice on window running the avrdude.exe opens the command prompt whereas on mac it doesnt know what to do with the unix exec file avrdude

      @JonB

      !

      :)

      No idea whether the command works at all now or not. @MatthewFelton should verify that first before digging deeper into QProcess and why it does or doesn't work.


      If debugging is the process of removing software bugs, then programming must be the process of putting them in.

      ~E. W. Dijkstra

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      • JonBJ JonB

        @MatthewFelton said in macOs Qprocess, calling a unix exec:

        I do infact have this class running in a worker thread

        This may or may not have anything to do with your Mac problem, but why do you have any threads, especially if you are beginner? Large numbers of beginners put threads in when there is no need, and threads are a major source of complexity/bugs. If you try your code from the main/single UI thread does it make any difference to the bad behaviour?

        M Offline
        M Offline
        MatthewFelton
        wrote on last edited by MatthewFelton
        #10

        @JonB The code is a little more complicated than the snippet I showed you. I'm using a worker thread because I have a while loop looking for the Arduino and it was stopping my Gui from drawing when the arduino was unplugged. its all good. I have an interface class talking between the threaded class and my QML Gui and everything working great. apart from the QProcess issue on mac. so just to re-iterate.

        I created a console application first. Its works for both mac and windows. I then created a GuiApplication and utilized the console app code. On windows the GuiApplication works as expected but on mac the GuiApplication does not. Its like it doesnt call the exepath... or does call the expath but doesnt input the arguments. I have tested the same code in the terminal and it also works. And as previously stated the exact same code is also currently working on mac for the console application.

        SGaistS 1 Reply Last reply
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        • M MatthewFelton

          @JonB The code is a little more complicated than the snippet I showed you. I'm using a worker thread because I have a while loop looking for the Arduino and it was stopping my Gui from drawing when the arduino was unplugged. its all good. I have an interface class talking between the threaded class and my QML Gui and everything working great. apart from the QProcess issue on mac. so just to re-iterate.

          I created a console application first. Its works for both mac and windows. I then created a GuiApplication and utilized the console app code. On windows the GuiApplication works as expected but on mac the GuiApplication does not. Its like it doesnt call the exepath... or does call the expath but doesnt input the arguments. I have tested the same code in the terminal and it also works. And as previously stated the exact same code is also currently working on mac for the console application.

          SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #11

          Hi,

          How do you move the helper executable to the right on macOS ?

          On macOS you do not have a single executable file for a GUI application like you have for a CLI application. A bundle is created by default.

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

          M 1 Reply Last reply
          0
          • SGaistS SGaist

            Hi,

            How do you move the helper executable to the right on macOS ?

            On macOS you do not have a single executable file for a GUI application like you have for a CLI application. A bundle is created by default.

            M Offline
            M Offline
            MatthewFelton
            wrote on last edited by
            #12

            @SGaist it's a Unix executable. Not a bundle. It's designed to be used in the terminal

            SGaistS 1 Reply Last reply
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            • M MatthewFelton

              @SGaist it's a Unix executable. Not a bundle. It's designed to be used in the terminal

              SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #13

              I am talking about your application not the helper.

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

              M 1 Reply Last reply
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              • SGaistS SGaist

                I am talking about your application not the helper.

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

                @SGaist as a complete beginner I don't actually know what that means sorry.

                SGaistS 1 Reply Last reply
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                • M MatthewFelton

                  @SGaist as a complete beginner I don't actually know what that means sorry.

                  SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #15

                  Check the macOS deployment chapter in Qt's documentation. It's nicely explained.

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

                  M 1 Reply Last reply
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                  • SGaistS SGaist

                    Check the macOS deployment chapter in Qt's documentation. It's nicely explained.

                    M Offline
                    M Offline
                    MatthewFelton
                    wrote on last edited by
                    #16

                    @SGaist ok .. but I'm not deploying yet. I'm still building.

                    SGaistS 1 Reply Last reply
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                    • M MatthewFelton

                      @SGaist ok .. but I'm not deploying yet. I'm still building.

                      SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      That is clear. However, the build still generates a bundle as described there. Hence my question about where your helper application is stored with regard to where the application executable can actually be found which should be in the generated bundle.

                      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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