[oe-commits] [bitbake] 13/15: process: Handle EWOULDBLOCK in socket connect

[git at git.openembedded.org]

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rpurdie pushed a commit to branch 1.38
in repository bitbake.

commit f770d6a332812031682dc6bef1a2a84da52a4c32
Author: Richard Purdie <richard.purdie at linuxfoundation.org>
AuthorDate: Mon Dec 24 16:32:18 2018 +0000

    process: Handle EWOULDBLOCK in socket connect
    
    Now that we set a timeout for the socket, it can return EWOULDBLOCK
    if a signal or other event happens to wake up even if we don't timeout.
    
    If this happens, retry the connection, else we simply see it quickly
    loop through the retries and abort the connection in a very short
    interval.
    
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 lib/bb/server/process.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/bb/server/process.py b/lib/bb/server/process.py
index 01a4b30..49a1b7c 100644
--- a/lib/bb/server/process.py
+++ b/lib/bb/server/process.py
@@ -478,7 +478,14 @@ def connectProcessServer(sockname, featureset):
     try:
         try:
             os.chdir(os.path.dirname(sockname))
-            sock.connect(os.path.basename(sockname))
+            finished = False
+            while not finished:
+                try:
+                    sock.connect(os.path.basename(sockname))
+                    finished = True
+                except IOError as e:
+                    if e.errno == errno.EWOULDBLOCK:
+                        pass
         finally:
             os.chdir(cwd)
 

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