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[langdale,2.2,3/4] asyncrpc: serv: correct closed client socket detection

Message ID 22b8ec06e61d058a0775957702204f1331e47210.1668003926.git.steve@sakoman.com
State New
Headers show
Series [langdale,2.2,1/4] bitbake-user-manual: details about variable flags starting with underscore | expand

Commit Message

Steve Sakoman Nov. 9, 2022, 2:29 p.m. UTC
From: Justin Bronder <jsbronder@cold-front.org>

If the client socket is closed, asyncio.StreamReader.readline() will
return an empty bytes object, not None.

This prevents multiple tracebacks being logged by bitbake-hashserv each
time bitbake is started and performs a connection check.

Signed-off-by: Justin Bronder <jsbronder@cold-front.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 2d07f252704dff7747fa1f9adf223a452806717f)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
 lib/bb/asyncrpc/serv.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/lib/bb/asyncrpc/serv.py b/lib/bb/asyncrpc/serv.py
index 5cf45f90..d2de4891 100644
--- a/lib/bb/asyncrpc/serv.py
+++ b/lib/bb/asyncrpc/serv.py
@@ -42,7 +42,7 @@  class AsyncServerConnection(object):
             # Read protocol and version
             client_protocol = await self.reader.readline()
-            if client_protocol is None:
+            if not client_protocol:
             (client_proto_name, client_proto_version) = client_protocol.decode('utf-8').rstrip().split()
@@ -59,7 +59,7 @@  class AsyncServerConnection(object):
             # an empty line to signal the end of the headers
             while True:
                 line = await self.reader.readline()
-                if line is None:
+                if not line:
                 line = line.decode('utf-8').rstrip()