Is DataLine.getMicrosecondPosition() thread-safe?











up vote
0
down vote

favorite












Let's say I use DataLine.write() in one thread and read DataLine.getMicrosecondPosition() in another. Will the reader thread see the updates of the writer thread, or should I synchronize my code to guarantee visibility?






java thread-safety javasound







share|improve this question


























    up vote
    0
    down vote

    favorite












    Let's say I use DataLine.write() in one thread and read DataLine.getMicrosecondPosition() in another. Will the reader thread see the updates of the writer thread, or should I synchronize my code to guarantee visibility?






    java thread-safety javasound







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Let's say I use DataLine.write() in one thread and read DataLine.getMicrosecondPosition() in another. Will the reader thread see the updates of the writer thread, or should I synchronize my code to guarantee visibility?






      java thread-safety javasound







      share|improve this question













      Let's say I use DataLine.write() in one thread and read DataLine.getMicrosecondPosition() in another. Will the reader thread see the updates of the writer thread, or should I synchronize my code to guarantee visibility?






      java thread-safety javasound




      java thread-safety javasound






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 17 hours ago









      Markus Malkusch

      5,3532150




      5,3532150
























          1 Answer
          1






          active

          oldest

          votes

















          up vote
          0
          down vote













          Just to be clear:



          write() is a potentially blocking call that puts data into the line's buffer for rendering. I.e. the line may render the data at some time in the future. From the docs:




          The requested number of bytes of data are read from the specified array, starting at the given offset into the array, and written to the data line's buffer.




          getMicrosecondPosition () tells you how many microseconds have already been rendered, docs:




          The microsecond position measures the time corresponding to the number of sample frames captured by, or rendered from, the line since it was opened.




          Both methods should be thread-safe, as there is no warning in the Javadocs.






          share|improve this answer





















            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














             

            draft saved


            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53370948%2fis-dataline-getmicrosecondposition-thread-safe%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            0
            down vote













            Just to be clear:



            write() is a potentially blocking call that puts data into the line's buffer for rendering. I.e. the line may render the data at some time in the future. From the docs:




            The requested number of bytes of data are read from the specified array, starting at the given offset into the array, and written to the data line's buffer.




            getMicrosecondPosition () tells you how many microseconds have already been rendered, docs:




            The microsecond position measures the time corresponding to the number of sample frames captured by, or rendered from, the line since it was opened.




            Both methods should be thread-safe, as there is no warning in the Javadocs.






            share|improve this answer

























              up vote
              0
              down vote













              Just to be clear:



              write() is a potentially blocking call that puts data into the line's buffer for rendering. I.e. the line may render the data at some time in the future. From the docs:




              The requested number of bytes of data are read from the specified array, starting at the given offset into the array, and written to the data line's buffer.




              getMicrosecondPosition () tells you how many microseconds have already been rendered, docs:




              The microsecond position measures the time corresponding to the number of sample frames captured by, or rendered from, the line since it was opened.




              Both methods should be thread-safe, as there is no warning in the Javadocs.






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                Just to be clear:



                write() is a potentially blocking call that puts data into the line's buffer for rendering. I.e. the line may render the data at some time in the future. From the docs:




                The requested number of bytes of data are read from the specified array, starting at the given offset into the array, and written to the data line's buffer.




                getMicrosecondPosition () tells you how many microseconds have already been rendered, docs:




                The microsecond position measures the time corresponding to the number of sample frames captured by, or rendered from, the line since it was opened.




                Both methods should be thread-safe, as there is no warning in the Javadocs.






                share|improve this answer












                Just to be clear:



                write() is a potentially blocking call that puts data into the line's buffer for rendering. I.e. the line may render the data at some time in the future. From the docs:




                The requested number of bytes of data are read from the specified array, starting at the given offset into the array, and written to the data line's buffer.




                getMicrosecondPosition () tells you how many microseconds have already been rendered, docs:




                The microsecond position measures the time corresponding to the number of sample frames captured by, or rendered from, the line since it was opened.




                Both methods should be thread-safe, as there is no warning in the Javadocs.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 17 hours ago









                hendrik

                1,422821




                1,422821






























                     

                    draft saved


                    draft discarded



















































                     


                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53370948%2fis-dataline-getmicrosecondposition-thread-safe%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    -

                    Popular posts from this blog

                    Cypress Hill

                    Image
                    Dieser Artikel behandelt die Musikgruppe. Zum Musikalbum siehe Cypress Hill (Album). Cypress Hill Sen Dog, Bobo und B-Real Allgemeine Informationen Genre(s) Hip-Hop, Crossover, Reggae Gründung 1988 Website www.cypresshill.com Aktuelle Besetzung Rap B-Real Rap Sen Dog DJ DJ Muggs Percussion Eric Bobo (seit 1994) Cypress Hill ist eine US-amerikanische Hip-Hop-Gruppe aus Los Angeles. Sie verkauften über 18 Millionen Alben weltweit. [1] Die Gruppe besteht aus DJ Muggs , den Rappern B-Real und Sen Dog sowie seit 1994 Percussionist Bobo , der vorher im Umkreis der Beastie Boys tätig gewesen war. Sie wurden international vor allem auch wegen ihres Engagements für die Legalisierung des Cannabiskonsums bekannt. Der Name „Cypress Hill“ (Deutsch: Zypressenhügel) bezieht sich auf den Wohnort der Gründungsmitglieder, da fast alle in der Cypress Avenue in South Gate aufwuchsen. Bis auf DJ Muggs sind alle Mitglieder Hispanics. ...
                    Read more

                    what are some tips for doing well in the interview? [on hold]

                    Image
                    .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty{ margin-bottom:0; } up vote -4 down vote favorite I completed my bachelor degree of software engineer now i want to do a government job in Pakistan regarding computer software because i know very well about software and i know how to make software but i am little bit fear full regarding job interview and i am very confused and also frightened when i think about the interview. please help me about my interview and tell me what type of question were asked for the job of software engineers and tell me some tips that i can doing well in the interview. interviewing new-job software degree share | improve this question ...
                    Read more

                    How does a super-power salesman not get shut down for legal reasons?

                    Image
                    up vote 6 down vote favorite 2 I am in trouble: my boss, a multi-millionaire, has just come up with a scheme, but it has problems and he wants me to solve them. The whole thing started when he saw this picture: This gave him an idea: invent, develop, and sell "superpowers". These "powers" would not be biological (he's rich, but not that rich), but technological. Basically, he wants to have Small Hero Five-and-a-half (tm) working for him, constantly cranking out new tech. After he has his team invent the tech (with possible help from Anderson Robotics), he would start to mass-produce it (think: bat-mobile factory), and sell the gadgets (why sell the rights, when there is still more money to be made?) to would-be super-heroes. This is where the problems start: the reason no-one has done this yet, is ...
                    Read more