The framework design of the aios kernel has been basically completed, as well as the key logic code centered on workflow.

test/async_test.py

@@ -0,0 +1,66 @@
+import asyncio
+import aiohttp
+import aiofiles
+STATE_DONE = 0
+STATE_DOWNLOADING = 1
+class install_task:
+    def __init__(self) -> None:
+        self.download_task = None
+        self.state = STATE_DOWNLOADING
+        self.recv_bytes = 0
+        self.total_bytes = 0 
+
+class install_task_mgr:
+    def __init__(self) -> None:
+        self.all_tasks = {}
+        
+    def create_install_task(self,url:str,target:str):
+        owner = self 
+        this_task = self.all_tasks.get(url)
+        if this_task is not None:
+            return this_task
+    
+        this_task = install_task()
+        self.all_tasks[url] = this_task
+        async def down_and_write():
+            async with aiofiles.open(target, 'wb') as file:
+                async with aiohttp.ClientSession() as session:
+                    async with session.get(url) as response:
+                        while True:
+                            chunk = await response.content.read(1024*1024*16) 
+                            this_task.recv_bytes += len(chunk)
+                            if not chunk:
+                                break
+                            await file.write(chunk)
+                        print(f"download task {url} done!")    
+                        this_task.state = STATE_DONE           
+                        del owner.all_tasks[url]  
+                        
+        this_task.download_task = asyncio.create_task(down_and_write())
+        return this_task
+            
+
+
+async def test_wait_download(mgr):
+    this_task = mgr.create_install_task("https://www.cyfs.com/download/beta/cyberchat/android/latest","test.pkg")
+    await this_task.download_task
+
+def test_timer_download(mgr):
+    this_task = mgr.create_install_task("https://www.cyfs.com/download/beta/cyberchat/android/latest","test.pkg")
+    # start timer
+    async def check_timer():
+        while this_task.state == STATE_DOWNLOADING:
+            await r = asyncio.sleep(1)
+            print(f"download bytes:{this_task.recv_bytes}")
+        print("download complete!")
+    
+    asyncio.create_task(check_timer())
+
+async def test_main():
+    mgr = install_task_mgr()
+    test_timer_download(mgr)
+    await test_wait_download(mgr)
+    await asyncio.sleep(1)
+
+if __name__ == "__main__":
+    asyncio.run(test_main())