From 072fc14327dab54b671965e92227f83d2db9ebfc Mon Sep 17 00:00:00 2001
From: Paul RASCLE <paul.rascle@edf.fr>
Date: Thu, 1 Mar 2018 15:19:08 +0100
Subject: [PATCH] fix for concurrent access in yacs schemas

---
 src/KERNEL_PY/salome_study.py | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/KERNEL_PY/salome_study.py b/src/KERNEL_PY/salome_study.py
index c08437325..4b2cd3669 100755
--- a/src/KERNEL_PY/salome_study.py
+++ b/src/KERNEL_PY/salome_study.py
@@ -396,14 +396,22 @@ def salome_study_init(theStudyPath=None):
         pass
 
     # get active study Id, ref and name
-    myStudy = None
-    myStudyId = getActiveStudy()
-    if myStudyId == None :
-        import types
-        if theStudyPath and type(theStudyPath) == types.StringType:
-            myStudyId = openStudy(theStudyPath)
+    concurrentCreate=True
+    while(concurrentCreate):
+        myStudy = None
+        myStudyId = getActiveStudy()
+        if myStudyId == None :
+            import types
+            if theStudyPath and type(theStudyPath) == types.StringType:
+                myStudyId = openStudy(theStudyPath)
+            else:
+                try:
+                    myStudyId = createNewStudy()
+                    concurrentCreate=False
+                except:
+                    print "concurrent createNewStudy, retry"
         else:
-            myStudyId = createNewStudy()
+            concurrentCreate=False
     if verbose(): print "myStudyId", myStudyId
 
     if myStudy == None:
-- 
2.39.2