## Accès concurrent

<div data-mermaid>
    <script type="text/mermaid">
    block
        columns 1
        block:macro_task
            columns 6
            space:2 macro_task_label["macro_task"]:2 space:2
            s(("start")) w1["work"] u1["progress"] w2["work"] u2["progress"] e(("end")) 
            s-->w1
            w1-->u1
            u1-->w2
            w2-->u2
            u2-->e
        end
        classDef transparent fill:none,stroke:none;
        class macro_task_label transparent
    </script>
</div>


<div data-mermaid>
    <script type="text/mermaid">
    ---
    config:
        theme: neutral
    ---
    block
        columns 1
        block:macro_task
            columns 1
            worker_label["worker"]
            block
                columns 1
                w1_label["thread1"]
                w1["macro_task"]
            end
            block
                columns 1
                w2_label["thread2"]
                w2["💤"]
            end
            block
                columns 1
                w3_label["thread3"]
                w3["💤"]
            end
        end
        classDef transparent fill:none,stroke:none;
        classDef task fill:#ffffded9;
        class worker_label,w1_label,w2_label,w2,w3_label,w3 transparent
        class w1 task
    </script>
</div>



## Accès concurrent
Cas parallèle

<div data-mermaid>
    <script type="text/mermaid">
    block
        columns 1
        block:macro_task
            columns 3
            macro_task_label["macro_task"]:3
            space
            block:w1
                columns 2
                w1_label["micro_task"]:2
                w1_["work"]
                u1["progress"]
                w1_-->u1
            end
            space
            s(("start"))
            block:w2
                columns 2
                w2_label["micro_task"]:2
                w2_["work"]
                u2["progress"]
                w2_-->u2
            end
            e(("end")) 
            space
            block:w3
                columns 2
                w3_label["micro_task"]:2
                w3_["work"]
                u3["progress"]
                w3_-->u3
            end
        end
        s-->w1
        s-->w2
        s-->w3
        w1-->e
        w2-->e
        w3-->e
        classDef transparent fill:none,stroke:none;
        classDef lg fill:lightgray,stroke:none;
        class macro_task_label,w1_label,w2_label,w3_label,w4_label,w5_label,s_ transparent
        class w1,w2,w3,w4,w5 lg
    </script>
</div>

<div data-mermaid>
    <script type="text/mermaid">
    ---
    config:
        theme: neutral
    ---
    block
        columns 2
        block:coordinator
            columns 1
            c_worker_label["coordinator"]
            block
                columns 1
                c_w1_label["thread1"]
                c_w1["macro_task"]
            end
            block
                columns 1
                c_w2_label["thread2"]
                c_w2["💤"]
            end
            block
                columns 1
                c_w3_label["thread3"]
                c_w3["💤"]
            end
        end
        block:executor
            columns 1
            e_worker_label["executor"]
            block
                columns 1
                e_w1_label["thread1"]
                e_w1["micro_task"]
            end
            block
                columns 1
                e_w2_label["thread2"]
                e_w2["micro_task"]
            end
            block
                columns 1
                e_w3_label["thread3"]
                e_w3["micro_task"]
            end
        end
        classDef transparent fill:none,stroke:none;
        classDef task fill:#ffffded9;
        class c_worker_label,c_w1_label,c_w2_label,c_w3_label,c_w2,c_w3 transparent
        class e_worker_label,e_w1_label,e_w2_label,e_w3_label transparent
        class c_w1 task
    </script>
</div>



## Accès concurrent
Cas parallèle
<!-- .slide: data-auto-animate -->
<div data-mermaid >
    <script type="text/mermaid">
    flowchart LR
        micro_task_1[micro_task]
        micro_task_2[micro_task]
        macro_task
        micro_task_1-->|Get task progress|macro_task
        micro_task_2-->|Get task progress|macro_task
    </script>
</div>



## Accès concurrent
Cas parallèle
<!-- .slide: data-auto-animate -->
<div data-mermaid >
    <script type="text/mermaid">
    flowchart RL
        micro_task_1[micro_task]
        micro_task_2[micro_task]
        macro_task-->|2/10|micro_task_1
        macro_task-->|2/10|micro_task_2
    </script>
</div>



## Accès concurrent
Cas parallèle
<!-- .slide: data-auto-animate -->
<div data-mermaid >
    <script type="text/mermaid">
    flowchart LR
        micro_task_1[micro_task]
        micro_task_2[micro_task]
        micro_task_1-->|Set progress to 3/10|macro_task
        micro_task_2-->|Set progress to 3/10|macro_task
    </script>
</div>



## Accès concurrent
Retour au séquentiel
<!-- .slide: data-auto-animate data-auto-animate-restart -->
<div data-mermaid >
    <script type="text/mermaid">
    ---
    config:
        theme: neutral
    ---
    block
        columns 3
        block:coordinator
            columns 1
            c_worker_label["coordinator"]
            block
                columns 1
                c_w1_label["thread1"]
                c_w1["macro_task"]
            end
            block
                columns 1
                c_w2_label["thread2"]
                c_w2["💤"]
            end
            block
                columns 1
                c_w3_label["thread3"]
                c_w3["💤"]
            end
        end
        block:executor
            columns 1
            e_worker_label["executor"]
            block
                columns 1
                e_w1_label["thread1"]
                e_w1["micro_task"]
            end
            block
                columns 1
                e_w2_label["thread2"]
                e_w2["micro_task"]
            end
            block
                columns 1
                e_w3_label["thread3"]
                e_w3["micro_task"]
            end
        end
        block:d
            columns 1
            d_worker_label["default"]
            block
                columns 1
                d_w1_label["thread1"]
                d_w1["💤"]
            end
            space:2
        end
        classDef transparent fill:none,stroke:none;
        classDef task fill:#ffffded9;
        class c_worker_label,c_w1_label,c_w2_label,c_w3_label,c_w2,c_w3 transparent
        class e_worker_label,e_w1_label,e_w2_label,e_w3_label transparent
        class d_worker_label,d_w1_label,d_w1 transparent
        class c_w1 task
    </script>
</div>

<div data-mermaid>
    <script type="text/mermaid">
    ---
    config:
        theme: forest
    ---
    block
        columns 1
        block:queue
            columns 1
            label["default queue"]
            space:6
        end
        classDef transparent fill:none,stroke:none;
        classDef task fill:#eee,stroke:#999;
        class label,w1_label,w2_label,w2,w3_label,w3 transparent
        class w1 task
    </script>
</div>



## Accès concurrent
Retour au séquentiel
<!-- .slide: data-auto-animate -->
<div data-mermaid >
    <script type="text/mermaid">
    ---
    config:
        theme: neutral
    ---
    block
        columns 3
        block:coordinator
            columns 1
            c_worker_label["coordinator"]
            block
                columns 1
                c_w1_label["thread1"]
                c_w1["macro_task"]
            end
            block
                columns 1
                c_w2_label["thread2"]
                c_w2["💤"]
            end
            block
                columns 1
                c_w3_label["thread3"]
                c_w3["💤"]
            end
        end
        block:executor
            columns 1
            e_worker_label["executor"]
            block
                columns 1
                e_w1_label["thread1"]
                e_w1["micro_task"]
            end
            block
                columns 1
                e_w2_label["thread2"]
                e_w2["💤"]
            end
            block
                columns 1
                e_w3_label["thread3"]
                e_w3["💤"]
            end
        end
        block:d
            columns 1
            d_worker_label["default"]
            block
                columns 1
                d_w1_label["thread1"]
                d_w1["progress"]
            end
            space:2
        end
        classDef transparent fill:none,stroke:none;
        classDef task fill:#ffffded9;
        class c_worker_label,c_w1_label,c_w2_label,c_w3_label,c_w2,c_w3 transparent
        class e_worker_label,e_w1_label,e_w2_label,e_w3_label,e_w2,e_w3 transparent
        class d_worker_label,d_w1_label transparent
        class c_w1 task
    </script>
</div>

<div data-mermaid>
    <script type="text/mermaid">
    ---
    config:
        theme: forest
    ---
    block
        columns 1
        block:queue
            columns 1
            label["default queue"]
            w1["progress"]
            space:5
        end
        classDef transparent fill:none,stroke:none;
        classDef task fill:#eee,stroke:#999;
        class label,w1_label,w2_label,w2,w3_label,w3 transparent
        class w1 task
    </script>
</div>


---


## Différences avec celery-progress

|                | ptf-task                     | celery-progress                 |
|----------------|------------------------------|---------------------------------|
| Broker         | RabbitMQ ou Redis            | RabbitMQ ou Redis               |
| Backend        | Celery events                | Channel Layers                  |
|                |                              |                                 |
| Streaming      | Django StreamingHttpResponse | Channel AsyncWebsocketConsumer  |
| Protocol       | HTTP ou SSE                  | HTTP ou WebSocket               |