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bluenav-ipc-thread

Un package python à utiliser dans un environement d'éxécution GreengrassCoreV2

Ce package permet d'encapsuler l'API IPC de Greengrass afin de l'utiliser simplement pour échanger des données entre les différents processus ou envoyer des messages MQTT vers AWS IOT Core


Installation


```bash pip install git+https://bitbucket.org/bluenav/bluenav-ipc-thread/src/master/ ```

API


```Python import threading from ipc_thread import IPCThread from queue import Queue

sub_queue = Queue() pub_queue = Queue() sub_core_queue = Queue() pub_core_queue = Queue()

Publier des messages dans un contexte local, dès qu'un message arrive dans la pub_queue il est extrait et envoyé automatiquement

Le message doit être un dict contenant une clé topic et une clé message

threading.Thread(target=IPCThread.IPCThreadPublish,args=(pub_queue, )).start() pub_queue.put({"topic": "navigation/CourseOverGround", "message": {"value": 2.765, "unit": "m/s", "PGN": 129026, "SID": 14, "timestamp": 1654847536}})

Souscrire à un topic dans un contexte local afin de recevoir tous les messages transitants sur ce topic dans la sub_queue

IPCThread.IPCThreadSubscribe(sub_queue, ["navigation/CourseOverGround", ...])

Pour le même fonctionnement mais dans un contexte distant (IoT Core <-> Machine locale) utiliser:

IPCThread.IPCThreadPublishToCore, IPCThread.IPCThreadSubscribeToCore

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