1 files changed, 5 insertions, 1 deletions

diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index d6e6919506..1a5e0038b6 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -165,7 +165,7 @@ class BBCooker:
     Manages one bitbake build run
     """
 
-    def __init__(self, configuration, featureSet=None):
+    def __init__(self, configuration, featureSet=None, readypipe=None):
         self.recipecaches = None
         self.skiplist = {}
         self.featureset = CookerFeatures()
@@ -237,6 +237,10 @@ class BBCooker:
         # Let SIGHUP exit as SIGTERM
         signal.signal(signal.SIGHUP, self.sigterm_exception)
 
+        if readypipe:
+            os.write(readypipe, b"ready")
+            os.close(readypipe)
+
     def config_notifications(self, event):
         if event.maskname == "IN_Q_OVERFLOW":
             bb.warn("inotify event queue overflowed, invalidating caches.")