bitbake: asyncrpc: Remove ClientPool

Batching support on the client side has proven to be a much more
effective way of dealing with server latency than multiple client
connections and is also much nicer on the server, so drop the client
pool support from asyncrpc and the hash server

(Bitbake rev: 6f80560f1c7010d09fe5448fdde616aef8468102)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/asyncrpc/__init__.py

@@ -5,7 +5,7 @@
 #
 
 
-from .client import AsyncClient, Client, ClientPool
+from .client import AsyncClient, Client
 from .serv import AsyncServer, AsyncServerConnection
 from .connection import DEFAULT_MAX_CHUNK
 from .exceptions import (

bitbake/lib/bb/asyncrpc/client.py

@@ -29,6 +29,7 @@ WEBSOCKETS_MIN_VERSION = (9, 1)
 if sys.version_info >= (3, 10, 0):
     WEBSOCKETS_MIN_VERSION = (10, 0)
 
+
 def parse_address(addr):
     if addr.startswith(UNIX_PREFIX):
         return (ADDR_TYPE_UNIX, (addr[len(UNIX_PREFIX) :],))
@@ -259,78 +260,3 @@ class Client(object):
     def __exit__(self, exc_type, exc_value, traceback):
         self.close()
         return False
-
-
-class ClientPool(object):
-    def __init__(self, max_clients):
-        self.avail_clients = []
-        self.num_clients = 0
-        self.max_clients = max_clients
-        self.loop = None
-        self.client_condition = None
-
-    @abc.abstractmethod
-    async def _new_client(self):
-        raise NotImplementedError("Must be implemented in derived class")
-
-    def close(self):
-        if self.client_condition:
-            self.client_condition = None
-
-        if self.loop:
-            self.loop.run_until_complete(self.__close_clients())
-            self.loop.run_until_complete(self.loop.shutdown_asyncgens())
-            self.loop.close()
-            self.loop = None
-
-    def run_tasks(self, tasks):
-        if not self.loop:
-            self.loop = asyncio.new_event_loop()
-
-        thread = Thread(target=self.__thread_main, args=(tasks,))
-        thread.start()
-        thread.join()
-
-    @contextlib.asynccontextmanager
-    async def get_client(self):
-        async with self.client_condition:
-            if self.avail_clients:
-                client = self.avail_clients.pop()
-            elif self.num_clients < self.max_clients:
-                self.num_clients += 1
-                client = await self._new_client()
-            else:
-                while not self.avail_clients:
-                    await self.client_condition.wait()
-                client = self.avail_clients.pop()
-
-        try:
-            yield client
-        finally:
-            async with self.client_condition:
-                self.avail_clients.append(client)
-                self.client_condition.notify()
-
-    def __thread_main(self, tasks):
-        async def process_task(task):
-            async with self.get_client() as client:
-                await task(client)
-
-        asyncio.set_event_loop(self.loop)
-        if not self.client_condition:
-            self.client_condition = asyncio.Condition()
-        tasks = [process_task(t) for t in tasks]
-        self.loop.run_until_complete(asyncio.gather(*tasks))
-
-    async def __close_clients(self):
-        for c in self.avail_clients:
-            await c.close()
-        self.avail_clients = []
-        self.num_clients = 0
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_value, traceback):
-        self.close()
-        return False