[oe-commits] [bitbake] 03/04: process: Handle EWOULDBLOCK in socket connect

[git at git.openembedded.org]

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rpurdie pushed a commit to branch master-next
in repository bitbake.

commit c87f41fcf625056965f384f7b239425dadfa3d55
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 f1fbe33..1e4b51e 100644
--- a/lib/bb/server/process.py
+++ b/lib/bb/server/process.py
@@ -479,7 +479,14 @@ 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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